diff --git a/.gitattributes b/.gitattributes
index 0cf8e092775..6d0e2ede718 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -18,27 +18,11 @@ tests/web/eof_line_ending_test.dart -text
 tests/web/string_interpolation_test.dart -text
 tests/web/string_interpolation_dynamic_test.dart -text
 tests/web/literal_string_juxtaposition_test.dart -text
-tests/web_2/eof_line_ending_test.dart -text
-tests/web_2/string_interpolation_test.dart -text
-tests/web_2/string_interpolation_dynamic_test.dart -text
-tests/web_2/literal_string_juxtaposition_test.dart -text
 tests/language/string/raw_string_test.dart -text
 tests/language/string/multiline_strings_test.dart -text
 tests/language/string/multiline_newline_cr.dart -text
 tests/language/string/multiline_newline_crlf.dart -text
 tests/language/string/multiline_newline_lf.dart -text
-tests/language_2/string/raw_string_test.dart -text
-tests/language_2/string/multiline_strings_test.dart -text
-tests/language_2/string/multiline_newline_cr.dart -text
-tests/language_2/string/multiline_newline_crlf.dart -text
-tests/language_2/string/multiline_newline_lf.dart -text
-tests/lib_2/convert/json_pretty_test.dart -text
-tests/lib_2/mirrors/method_mirror_source_line_ending_cr.dart -text
-tests/lib_2/mirrors/method_mirror_source_line_ending_crlf.dart -text
-tests/lib_2/mirrors/method_mirror_source_line_ending_lf.dart -text
-tests/lib_2/mirrors/method_mirror_source_line_ending_test.dart -text
-tests/lib_2/mirrors/method_mirror_source_other.dart -text
-tests/lib_2/mirrors/method_mirror_source_test.dart -text
 tests/lib/mirrors/method_mirror_source_line_ending_cr.dart -text
 tests/lib/mirrors/method_mirror_source_line_ending_crlf.dart -text
 tests/lib/mirrors/method_mirror_source_line_ending_lf.dart -text
diff --git a/pkg/_js_interop_checks/lib/js_interop_checks.dart b/pkg/_js_interop_checks/lib/js_interop_checks.dart
index 8f7dced7227..1beedea63ae 100644
--- a/pkg/_js_interop_checks/lib/js_interop_checks.dart
+++ b/pkg/_js_interop_checks/lib/js_interop_checks.dart
@@ -88,14 +88,10 @@ class JsInteropChecks extends RecursiveVisitor {
     RegExp(r'(?<!generated_)tests/web/native'),
     RegExp(r'(?<!generated_)tests/web/internal'),
     'generated_tests/web/native/native_test',
-    RegExp(r'(?<!generated_)tests/web_2/native'),
-    RegExp(r'(?<!generated_)tests/web_2/internal'),
-    'generated_tests/web_2/native/native_test',
   ];
 
   static final List<Pattern> _allowedTrustTypesTestPatterns = [
     RegExp(r'(?<!generated_)tests/lib/js'),
-    RegExp(r'(?<!generated_)tests/lib_2/js'),
   ];
 
   /// Libraries that cannot be used when [_enforceStrictMode] is true.
diff --git a/pkg/analyzer_cli/README.md b/pkg/analyzer_cli/README.md
index 83cf1edd0bf..10e40cf997f 100644
--- a/pkg/analyzer_cli/README.md
+++ b/pkg/analyzer_cli/README.md
@@ -18,7 +18,7 @@ conclusions on language samples in the testing directory.
 From the root of the SDK:
 
 ```
-tools/test.py --build --use-sdk -c dart2analyzer co19_2 language_2
+tools/test.py --build --use-sdk -c dart2analyzer co19 language
 ```
 
 This will build the Dart VM and compile dartanalyzer into a snapshot, then use
diff --git a/pkg/bisect_dart/lib/src/bisection_config.dart b/pkg/bisect_dart/lib/src/bisection_config.dart
index c03c28c4bf5..dcf19e48f91 100644
--- a/pkg/bisect_dart/lib/src/bisection_config.dart
+++ b/pkg/bisect_dart/lib/src/bisection_config.dart
@@ -97,7 +97,7 @@ class BisectionConfig {
     start: '23f41452',
     end: '2c97bd78',
     testCommands: [
-      'python3 tools/test.py --build -n dartk-linux-debug-x64 lib_2/isolate/package_resolve_test',
+      'python3 tools/test.py --build -n dartk-linux-debug-x64 lib/isolate/package_resolve_test',
     ],
     sdkPath: Directory.current.uri,
     failureString: "Error: The argument type 'String' can't "
diff --git a/pkg/compiler/lib/src/kernel/dart2js_target.dart b/pkg/compiler/lib/src/kernel/dart2js_target.dart
index 6a9e9f0c2fa..3b82a542510 100644
--- a/pkg/compiler/lib/src/kernel/dart2js_target.dart
+++ b/pkg/compiler/lib/src/kernel/dart2js_target.dart
@@ -41,10 +41,6 @@ List<Pattern> _allowedNativeTestPatterns = [
   RegExp(r'(?<!generated_)tests/web/internal'),
   'generated_tests/web/native/native_test',
   'generated_tests/web/internal/deferred_url_test',
-  RegExp(r'(?<!generated_)tests/web_2/native'),
-  RegExp(r'(?<!generated_)tests/web_2/internal'),
-  'generated_tests/web_2/native/native_test',
-  'generated_tests/web_2/internal/deferred_url_test',
   'pkg/front_end/testcases/dart2js/native',
 ];
 
diff --git a/pkg/compiler/lib/src/ssa/validate.dart b/pkg/compiler/lib/src/ssa/validate.dart
index 3e1a3e7621c..6ef55710f2c 100644
--- a/pkg/compiler/lib/src/ssa/validate.dart
+++ b/pkg/compiler/lib/src/ssa/validate.dart
@@ -137,7 +137,7 @@ class HValidator extends HInstructionVisitor {
   // than this are OK in order to avoid the O(N^2) validation getting out of
   // hand.
   //
-  // Poster child: corelib_2/regexp/pcre_test.dart, which has a 7KLOC main().
+  // Poster child: corelib/regexp/pcre_test.dart, which has a 7KLOC main().
   static const int kMaxValidatedInstructionListLength = 1000;
 
   /// Verifies [instruction] is contained in [instructions] [count] times.
diff --git a/pkg/compiler/test/end_to_end/all_native_test.dart b/pkg/compiler/test/end_to_end/all_native_test.dart
index c2fecd6f79a..1ee89f1af1d 100644
--- a/pkg/compiler/test/end_to_end/all_native_test.dart
+++ b/pkg/compiler/test/end_to_end/all_native_test.dart
@@ -16,7 +16,7 @@ main() {
 
 test(List<String> options) async {
   DiagnosticCollector collector = DiagnosticCollector();
-  String fileName = 'sdk/tests/web_2/native/main.dart';
+  String fileName = 'sdk/tests/web/native/main.dart';
   Uri entryPoint = Uri.parse('memory:$fileName');
   await runCompiler(
       entryPoint: entryPoint,
diff --git a/pkg/compiler/test/js/js_constant_test.dart b/pkg/compiler/test/js/js_constant_test.dart
index 277bcb20382..fbda633386a 100644
--- a/pkg/compiler/test/js/js_constant_test.dart
+++ b/pkg/compiler/test/js/js_constant_test.dart
@@ -20,9 +20,9 @@ const String TEST_1 = r"""
 main() {
   runTest() async {
     check(String test) async {
-      // Pretend this is a web_2/native test to allow use of 'native' keyword
+      // Pretend this is a web/native test to allow use of 'native' keyword
       // and import of private libraries.
-      String main = 'sdk/tests/web_2/native/main.dart';
+      String main = 'sdk/tests/web/native/main.dart';
       Uri entryPoint = Uri.parse('memory:$main');
       var result = await runCompiler(
           entryPoint: entryPoint, memorySourceFiles: {main: test});
diff --git a/pkg/compiler/test/js/js_spec_optimization_test.dart b/pkg/compiler/test/js/js_spec_optimization_test.dart
index b2e128a1e69..079425aab2f 100644
--- a/pkg/compiler/test/js/js_spec_optimization_test.dart
+++ b/pkg/compiler/test/js/js_spec_optimization_test.dart
@@ -89,7 +89,7 @@ main() {
   runTests() async {
     check(String test) async {
       var checker = checkerForAbsentPresent(test);
-      String main = 'sdk/tests/web_2/native/main.dart';
+      String main = 'sdk/tests/web/native/main.dart';
       Uri entryPoint = Uri.parse('memory:$main');
       var result = await runCompiler(
           entryPoint: entryPoint, memorySourceFiles: {main: test});
diff --git a/pkg/compiler/test/jsinterop/internal_annotations_test.dart b/pkg/compiler/test/jsinterop/internal_annotations_test.dart
index 9418c9c82d8..382dccb2b9b 100644
--- a/pkg/compiler/test/jsinterop/internal_annotations_test.dart
+++ b/pkg/compiler/test/jsinterop/internal_annotations_test.dart
@@ -29,7 +29,7 @@ testClasses(String import1, String import2) async {
       {List<String> directlyInstantiated = const <String>[],
       List<String> abstractlyInstantiated = const <String>[],
       List<String> indirectlyInstantiated = const <String>[]}) async {
-    String mainFile = 'sdk/tests/web_2/native/main.dart';
+    String mainFile = 'sdk/tests/web/native/main.dart';
     Uri entryPoint = Uri.parse('memory:$mainFile');
     CompilationResult result =
         await runCompiler(entryPoint: entryPoint, memorySourceFiles: {
diff --git a/pkg/compiler/test/model/cfe_annotations_test.dart b/pkg/compiler/test/model/cfe_annotations_test.dart
index 3db1f4dc0b7..b8773857238 100644
--- a/pkg/compiler/test/model/cfe_annotations_test.dart
+++ b/pkg/compiler/test/model/cfe_annotations_test.dart
@@ -17,7 +17,7 @@ import 'package:kernel/ast.dart' as ir;
 import '../helpers/args_helper.dart';
 import 'package:compiler/src/util/memory_compiler.dart';
 
-const String pathPrefix = 'sdk/tests/web_2/native/';
+const String pathPrefix = 'sdk/tests/web/native/';
 
 const Map<String, String> source = {
   '$pathPrefix/main.dart': '''
diff --git a/pkg/compiler/test/model/native_test.dart b/pkg/compiler/test/model/native_test.dart
index 16784c677fa..f4b59ae64b6 100644
--- a/pkg/compiler/test/model/native_test.dart
+++ b/pkg/compiler/test/model/native_test.dart
@@ -18,7 +18,7 @@ enum Kind {
 
 main() {
   asyncTest(() async {
-    await runTest('tests/web_2/jsinterop_test.dart', '', {
+    await runTest('tests/web/jsinterop_test.dart', '', {
       'Class': Kind.regular,
       'JsInteropClass': Kind.jsInterop,
       'flag': Kind.regular,
@@ -79,7 +79,7 @@ main() {
       '53',
       '54',
     ]);
-    await runTest('tests/web_2/non_jsinterop_test.dart', '', {
+    await runTest('tests/web/non_jsinterop_test.dart', '', {
       'Class': Kind.regular,
       'JsInteropClass': Kind.jsInterop,
       'flag': Kind.regular,
@@ -139,7 +139,7 @@ main() {
     ]);
 
     await runTest(
-        'tests/web_2/native/native_test.dart', 'tests/web_2/native/', {
+        'tests/web/native/native_test.dart', 'tests/web/native/', {
       'Class': Kind.regular,
       'NativeClass': Kind.native,
       'topLevelField': Kind.regular,
diff --git a/pkg/compiler/test/model/strong_mode_closed_world_test.dart b/pkg/compiler/test/model/strong_mode_closed_world_test.dart
index 7024cf65f6a..921ecf63c82 100644
--- a/pkg/compiler/test/model/strong_mode_closed_world_test.dart
+++ b/pkg/compiler/test/model/strong_mode_closed_world_test.dart
@@ -17,9 +17,9 @@ main() {
 }
 
 runTest() async {
-  // Pretend this is a web_2/native test to allow use of 'native' keyword
+  // Pretend this is a web/native test to allow use of 'native' keyword
   // and import of private libraries.
-  String main = 'sdk/tests/web_2/native/main.dart';
+  String main = 'sdk/tests/web/native/main.dart';
   Uri entryPoint = Uri.parse('memory:$main');
 
   CompilationResult result =
diff --git a/pkg/dev_compiler/lib/src/kernel/target.dart b/pkg/dev_compiler/lib/src/kernel/target.dart
index 7e54af4c1a3..ce64034d203 100644
--- a/pkg/dev_compiler/lib/src/kernel/target.dart
+++ b/pkg/dev_compiler/lib/src/kernel/target.dart
@@ -509,9 +509,7 @@ class _CovarianceTransformer extends RecursiveVisitor {
 List<Pattern> _allowedNativeTestPatterns = [
   'tests/dartdevc',
   'tests/web/native',
-  'tests/web_2/native',
   'tests/web/internal',
-  'tests/web_2/internal',
 ];
 
 bool allowedNativeTest(Uri uri) {
diff --git a/pkg/smith/lib/configuration.dart b/pkg/smith/lib/configuration.dart
index 9555c50edad..f79825cba6c 100644
--- a/pkg/smith/lib/configuration.dart
+++ b/pkg/smith/lib/configuration.dart
@@ -1122,6 +1122,9 @@ class System extends NamedEnum {
   }
 }
 
+// TODO(rnystrom): NnbdMode.legacy can be removed now that opted out code is no
+// longer supported. This entire enum and the notion of "NNBD modes" can be
+// removed once it's no longer possible to run programs in unsound weak mode.
 /// What level of non-nullability support should be applied to the test files.
 class NnbdMode extends NamedEnum {
   /// "Opted out" legacy mode with no NNBD features allowed.
diff --git a/pkg/test_runner/lib/src/command_output.dart b/pkg/test_runner/lib/src/command_output.dart
index 65c2e4fe264..8a513949400 100644
--- a/pkg/test_runner/lib/src/command_output.dart
+++ b/pkg/test_runner/lib/src/command_output.dart
@@ -1098,7 +1098,7 @@ class Dart2jsCompilerCommandOutput extends CompilationCommandOutput
   /// Matches the location and message of a dart2js error message, which looks
   /// like:
   ///
-  ///     tests/language_2/some_test.dart:9:3:
+  ///     tests/language/some_test.dart:9:3:
   ///     Error: Some message.
   ///       BadThing();
   ///       ^
@@ -1130,7 +1130,7 @@ class Dart2WasmCompilerCommandOutput extends CompilationCommandOutput
   /// Matches the location and message of a dart2wasm error message, which looks
   /// like:
   ///
-  ///     tests/language_2/some_test.dart:9:3: Error: Some message.
+  ///     tests/language/some_test.dart:9:3: Error: Some message.
   ///       BadThing();
   ///       ^
   ///
@@ -1155,7 +1155,7 @@ class DevCompilerCommandOutput extends CommandOutput with _StaticErrorOutput {
   /// Matches the first line of a DDC error message. DDC prints errors to
   /// stdout that look like:
   ///
-  ///     org-dartlang-app:/tests/language_2/some_test.dart:7:21: Error: Some message.
+  ///     org-dartlang-app:/tests/language/some_test.dart:7:21: Error: Some message.
   ///     Try fixing the code to be less bad.
   ///       var _ = <int>[if (1) 2];
   ///                    ^
@@ -1462,7 +1462,7 @@ class FastaCommandOutput extends CompilationCommandOutput
   /// Matches the first line of a Fasta error, warning, or context message.
   /// Fasta prints to stdout like:
   ///
-  ///     tests/language_2/some_test.dart:7:21: Error: Some message.
+  ///     tests/language/some_test.dart:7:21: Error: Some message.
   ///     Try fixing the code to be less bad.
   ///       var _ = <int>[if (1) 2];
   ///                    ^
diff --git a/pkg/test_runner/lib/src/options.dart b/pkg/test_runner/lib/src/options.dart
index 43913c0e85a..d30654007ba 100644
--- a/pkg/test_runner/lib/src/options.dart
+++ b/pkg/test_runner/lib/src/options.dart
@@ -15,16 +15,6 @@ import 'repository.dart';
 import 'test_configurations.dart';
 import 'utils.dart';
 
-const _legacyTestSelectors = [
-  'corelib_2',
-  'ffi_2',
-  'language_2',
-  'lib_2',
-  'kernel',
-  'utils',
-  'vm',
-];
-
 const _defaultTestSelectors = [
   'corelib',
   'ffi',
@@ -506,7 +496,6 @@ has been specified on the command line.''')
     var allSuiteDirectories = [
       ...testSuiteDirectories,
       Path('tests/co19'),
-      Path('tests/co19_2'),
     ];
 
     var selectors = <String>[];
@@ -523,8 +512,8 @@ has been specified on the command line.''')
         if (selector.startsWith('$path/')) {
           selector = selector.substring(path.lastIndexOf('/') + 1);
 
-          // Remove the `src/` subdirectories from the co19 and co19_2
-          // directories that do not appear in the test names.
+          // Remove the `src/` subdirectories from the co19 directories that do
+          // not appear in the test names.
           if (selector.startsWith('co19')) {
             selector = selector.replaceFirst(RegExp('src/'), '');
           }
@@ -859,11 +848,7 @@ has been specified on the command line.''')
             .toSet()
             .toList();
       } else {
-        if (nnbdMode == NnbdMode.legacy) {
-          selectors.addAll(_legacyTestSelectors);
-        } else {
-          selectors.addAll(_defaultTestSelectors);
-        }
+        selectors.addAll(_defaultTestSelectors);
       }
 
       var excludeSuites = configuration['exclude-suite'] != null
diff --git a/pkg/test_runner/lib/src/output_log.dart b/pkg/test_runner/lib/src/output_log.dart
index 755229c0cf8..9fed4999bba 100644
--- a/pkg/test_runner/lib/src/output_log.dart
+++ b/pkg/test_runner/lib/src/output_log.dart
@@ -12,7 +12,7 @@ const _truncatedError =
 
 /// Records the output from a test.
 class OutputLog implements StreamConsumer<List<int>> {
-  // TODO(45618): Reduce this if language_2/unsorted/disassemble_test is fixed
+  // TODO(45618): Reduce this if language/unsorted/disassemble_test is fixed
   // to produce less output and any other large-output tests are fixed.
   static const _maxLength = 10 * 1024 * 1024;
 
diff --git a/pkg/test_runner/lib/src/test_configurations.dart b/pkg/test_runner/lib/src/test_configurations.dart
index 0e30d871519..9d53d962a6b 100644
--- a/pkg/test_runner/lib/src/test_configurations.dart
+++ b/pkg/test_runner/lib/src/test_configurations.dart
@@ -34,18 +34,12 @@ final testSuiteDirectories = [
   Path('runtime/tests/vm'),
   Path('samples'),
   Path('tests/corelib'),
-  Path('tests/corelib_2'),
   Path('tests/dartdevc'),
-  Path('tests/dartdevc_2'),
   Path('tests/ffi'),
-  Path('tests/ffi_2'),
   Path('tests/language'),
-  Path('tests/language_2'),
   Path('tests/lib'),
-  Path('tests/lib_2'),
   Path('tests/standalone'),
   Path('tests/web'),
-  Path('tests/web_2'),
   Path('third_party/pkg/dart_style'),
   Path('third_party/pkg/dartdoc'),
   Path('third_party/pkg/native/pkgs/native_assets_builder'),
@@ -150,7 +144,7 @@ Future testConfigurations(List<TestConfiguration> configurations) async {
       }
 
       for (var key in configuration.selectors.keys) {
-        if (key == 'co19_2' || key == 'co19') {
+        if (key == 'co19') {
           testSuites.add(Co19TestSuite(configuration, key));
         } else if (configuration.compiler == Compiler.dartk &&
             configuration.runtime == Runtime.vm &&
diff --git a/pkg/test_runner/lib/src/test_suite.dart b/pkg/test_runner/lib/src/test_suite.dart
index d12ddaa7e52..1eb2abec1a6 100644
--- a/pkg/test_runner/lib/src/test_suite.dart
+++ b/pkg/test_runner/lib/src/test_suite.dart
@@ -1110,7 +1110,7 @@ class AnalyzeLibraryTestSuite extends StandardTestSuite {
 
   AnalyzeLibraryTestSuite(TestConfiguration configuration)
       : super(configuration, 'analyze_library', _libraryPath(configuration),
-            ['tests/lib_2/analyzer/analyze_library.status']);
+            ['tests/lib/analyzer/analyze_library.status']);
 
   @override
   List<String> additionalOptions(Path? filePath, {bool? showSdkWarnings}) =>
diff --git a/pkg/test_runner/test/options_test.dart b/pkg/test_runner/test/options_test.dart
index d23ac54a491..2b8bf4811a8 100644
--- a/pkg/test_runner/test/options_test.dart
+++ b/pkg/test_runner/test/options_test.dart
@@ -103,23 +103,6 @@ void testValidation() {
 }
 
 void testSelectors() {
-  // Legacy suites.
-  for (var arguments in [
-    ['--nnbd=legacy'],
-    ['-nvm-legacy']
-  ]) {
-    var configuration = parseConfiguration(arguments);
-    Expect.setEquals({
-      'corelib_2',
-      'language_2',
-      'vm',
-      'utils',
-      'lib_2',
-      'kernel',
-      'ffi_2',
-    }, configuration.selectors.keys, "suites for $arguments");
-  }
-
   // Default null safe suites.
   for (var arguments in [
     <String>[],
@@ -150,7 +133,7 @@ void testSelectors() {
       .join(Platform.pathSeparator);
   final co19Path = [
     'tests',
-    'co19_2',
+    'co19',
     'src',
     'subdir_1',
     'subdir_src',
@@ -161,14 +144,13 @@ void testSelectors() {
       // suite selectors, one with a pattern ending in .dart.
       // The final .dart is removed both from file paths and selector
       // patterns.
-      ['vm', 'language_2/a_legacy_test.dart', testPath, co19Path]);
+      ['vm', 'lib/a_legacy_test.dart', testPath, co19Path]);
   Expect.equals(
       'subdir/some_test', configuration.selectors['language']?.pattern);
   Expect.equals('subdir_1/subdir_src/some_co19_test',
-      configuration.selectors['co19_2']?.pattern);
+      configuration.selectors['co19']?.pattern);
   Expect.equals('.?', configuration.selectors['vm']?.pattern);
-  Expect.equals(
-      'a_legacy_test', configuration.selectors['language_2']?.pattern);
+  Expect.equals('a_legacy_test', configuration.selectors['lib']?.pattern);
 }
 
 TestConfiguration parseConfiguration(List<String> arguments) {
diff --git a/runtime/tests/vm/dart/regress_40635_test.dart b/runtime/tests/vm/dart/regress_40635_test.dart
index eeb643fc3aa..7b222da075e 100644
--- a/runtime/tests/vm/dart/regress_40635_test.dart
+++ b/runtime/tests/vm/dart/regress_40635_test.dart
@@ -3,7 +3,7 @@
 // BSD-style license that can be found in the LICENSE file.
 //
 // Tests that a basic test still works when instructions are deduplicated.
-// Test body comes from tests/corelib_2/apply2_test.dart, which is one of the
+// Test body comes from tests/corelib/apply2_test.dart, which is one of the
 // tests that were failing when --dedup-instructions was broken in bare payload
 // mode (precompiled + bare instructions).
 //
diff --git a/sdk/lib/_internal/js_runtime/lib/js_helper.dart b/sdk/lib/_internal/js_runtime/lib/js_helper.dart
index 65061746f95..5f6461d4d29 100644
--- a/sdk/lib/_internal/js_runtime/lib/js_helper.dart
+++ b/sdk/lib/_internal/js_runtime/lib/js_helper.dart
@@ -3271,7 +3271,7 @@ void applyExtension(name, nativeObject) {}
 // This is currently a no-op in dart2js, but used for native tests.
 void applyTestExtensions(List<String> names) {}
 
-// See tests/web_2/platform_environment_variable1_test.dart
+// See tests/web/platform_environment_variable1_test.dart
 const String testPlatformEnvironmentVariableValue = String.fromEnvironment(
     'dart2js.test.platform.environment.variable',
     defaultValue: 'not-specified');
diff --git a/tests/co19_2/.gitignore b/tests/co19_2/.gitignore
deleted file mode 100644
index a57582cc39f..00000000000
--- a/tests/co19_2/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-/src
diff --git a/tests/co19_2/co19_2-co19.status b/tests/co19_2/co19_2-co19.status
deleted file mode 100644
index c02280a7dc2..00000000000
--- a/tests/co19_2/co19_2-co19.status
+++ /dev/null
@@ -1,132 +0,0 @@
-# Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-
-Language/Generics/Superbounded_types/typedef1_A01_t03: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-Language/Generics/Superbounded_types/typedef1_A01_t04: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-Language/Generics/Superbounded_types/typedef2_A01_t04: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-Language/Generics/typedef_A08_t02: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-Language/Generics/typedef_A08_t03: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-Language/Generics/typedef_A08_t04: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/class/static/class_typedef_l1_t03: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/class/static/class_typedef_l2_t03: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/class/static/class_typedef_l2_t07: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l1_t03: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l1_t04: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l1_t05: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l1_t08: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l1_t09: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l1_t10: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_01_t01: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_01_t02: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_01_t03: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_01_t04: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_01_t06: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_01_t07: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_01_t08: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_01_t09: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_01_t10: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_01_t11: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_01_t12: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_01_t13: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_01_t14: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_01_t15: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_01_t16: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_01_t17: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_01_t18: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_01_t19: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_01_t20: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_02_t01: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_02_t03: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_02_t06: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_02_t07: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_02_t08: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_02_t09: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_02_t10: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_02_t11: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_02_t14: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_02_t15: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_02_t16: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_02_t17: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_02_t18: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_02_t19: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_02_t20: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_03_t02: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_03_t04: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_03_t06: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_03_t07: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_03_t08: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_03_t09: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_03_t12: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_03_t13: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_03_t14: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_03_t15: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_03_t16: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_03_t17: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_03_t18: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_03_t19: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_03_t20: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_04_t01: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_04_t02: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_04_t03: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_04_t04: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_04_t06: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_04_t07: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_04_t08: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_04_t09: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_04_t10: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_04_t11: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_04_t12: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_04_t13: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_04_t14: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_04_t15: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_04_t16: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_04_t17: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_04_t18: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_04_t19: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_04_t20: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_05_t01: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_05_t02: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_05_t03: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_05_t04: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_05_t06: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_05_t07: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_05_t08: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_05_t09: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_05_t10: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_05_t11: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_05_t12: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_05_t13: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_05_t14: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_05_t15: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_05_t16: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_05_t17: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_05_t18: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_05_t19: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_05_t20: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_06_t01: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_06_t02: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_06_t03: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_06_t06: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_06_t07: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_06_t08: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_06_t09: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_06_t10: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_06_t11: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_06_t12: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_06_t13: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_06_t14: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_06_t15: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_06_t16: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_06_t17: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_06_t18: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_06_t19: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_06_t20: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_typedef_l1_t03: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_typedef_l1_t07: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_typedef_l1_t09: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_typedef_l1_t11: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_typedef_l1_t13: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_typedef_l1_t15: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_typedef_l1_t17: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_typedef_l1_t19: SkipByDesign # https://github.com/dart-lang/sdk/issues/46483
diff --git a/tests/co19_2/co19_2-dart2js.status b/tests/co19_2/co19_2-dart2js.status
deleted file mode 100644
index 5370dbfe894..00000000000
--- a/tests/co19_2/co19_2-dart2js.status
+++ /dev/null
@@ -1,90 +0,0 @@
-# Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-
-[ $compiler == dart2js ]
-Language/Expressions/Constants/integer_size_t03: SkipByDesign # uses integer literal not representable as JavaScript number
-Language/Expressions/Constants/integer_size_t04: SkipByDesign # uses integer literal not representable as JavaScript number
-Language/Expressions/Constants/literal_number_t01: SkipByDesign # uses integer literal not representable as JavaScript number
-Language/Expressions/Constants/math_operators_t01: SkipByDesign # uses integer literal not representable as JavaScript number
-Language/Expressions/Constants/math_operators_t06: SkipByDesign # uses integer literal not representable as JavaScript number
-Language/Expressions/Numbers/integer_size_t03: SkipByDesign # uses integer literal not representable as JavaScript number
-Language/Expressions/Numbers/static_type_of_int_t01: SkipByDesign # uses integer literal not representable as JavaScript number
-Language/Expressions/Numbers/syntax_t06: SkipByDesign # uses integer literal not representable as JavaScript number
-Language/Expressions/Numbers/syntax_t09: SkipByDesign # uses integer literal not representable as JavaScript number
-Language/Expressions/Object_Identity/object_t02: SkipByDesign # https://github.com/dart-lang/sdk/issues/42222#issuecomment-640431711
-Language/Expressions/Spawning_an_Isolate/new_isolate_t01: SkipByDesign
-Language/Functions/External_Functions/not_connected_to_a_body_t01: SkipByDesign # Non-JS-interop external members are not supported
-Language/Libraries_and_Scripts/Scripts/top_level_main_t01: SkipByDesign # Uses dart:io.
-Language/Libraries_and_Scripts/Scripts/top_level_main_t06: SkipByDesign # Uses dart:io.
-Language/Libraries_and_Scripts/Scripts/top_level_syntax_t01: SkipByDesign # Non-JS-interop external members are not supported
-Language/Libraries_and_Scripts/top_level_syntax_t01: SkipByDesign # Non-JS-interop external members are not supported
-Language/Reference/Operator_Precedence/precedence_15_unary_prefix_t08: SkipByDesign # binary '~' produces different results in JavaScript and Dart
-Language/Types/Interface_Types/subtype_t27: Skip # https://github.com/dart-lang/sdk/issues/42641
-LibTest/core/DateTime/DateTime.fromMicrosecondsSinceEpoch_A01_t01: SkipByDesign # microseconds are not supported in JavaScript
-LibTest/core/DateTime/microsecond_A01_t01: SkipByDesign # microseconds are not supported in JavaScript
-LibTest/core/DateTime/microsecondsSinceEpoch_A01_t01: SkipByDesign # microseconds are not supported in JavaScript
-LibTest/core/DateTime/parse_A01_t03: SkipByDesign # microseconds are not supported in JavaScript
-LibTest/core/DateTime/to8601String_A01_t01: SkipByDesign # microseconds are not supported in JavaScript
-LibTest/core/DateTime/to8601String_A01_t02: SkipByDesign # microseconds are not supported in JavaScript
-LibTest/core/DateTime/to8601String_A01_t03: SkipByDesign # microseconds are not supported in JavaScript
-LibTest/core/int/operator_remainder_A01_t03: SkipByDesign # Division by zero is not an error in JavaScript
-LibTest/core/int/operator_truncating_division_A01_t02: SkipByDesign # Division by zero is not an error in JavaScript
-LibTest/core/int/parse_A01_t02: SkipByDesign # big integers cannot be represented in JavaScript
-LibTest/core/int/remainder_A01_t03: SkipByDesign # Division by zero is not an error in JavaScript
-LibTest/io/*: SkipByDesign # dart:io not supported.
-LibTest/isolate/*: SkipByDesign # dart:isolate not supported
-LibTest/mirrors/*: SkipByDesign # dart:mirrors not supported
-LibTest/typed_data/ByteBuffer/asInt64List_A01_t01: SkipByDesign # Int64List not supported on the web
-LibTest/typed_data/ByteBuffer/asInt64List_A02_t01: SkipByDesign # Int64List not supported on the web
-LibTest/typed_data/ByteBuffer/asInt64List_A03_t01: SkipByDesign # Int64List not supported on the web
-LibTest/typed_data/ByteBuffer/asUint64List_A01_t01: SkipByDesign # UInt64List not supported on the web
-LibTest/typed_data/ByteBuffer/asUint64List_A02_t01: SkipByDesign # UInt64List not supported on the web
-LibTest/typed_data/ByteBuffer/asUint64List_A03_t01: SkipByDesign # UInt64List not supported on the web
-LibTest/typed_data/ByteData/getInt64_A01_t01: SkipByDesign # 64-bit int not supported on the web
-LibTest/typed_data/ByteData/getInt64_A02_t01: SkipByDesign # 64-bit int not supported on the web
-LibTest/typed_data/ByteData/getInt64_A02_t02: SkipByDesign # 64-bit int not supported on the web
-LibTest/typed_data/ByteData/getUint64_A01_t01: SkipByDesign # 64-bit int not supported on the web
-LibTest/typed_data/ByteData/getUint64_A02_t01: SkipByDesign # 64-bit int not supported on the web
-LibTest/typed_data/ByteData/getUint64_A02_t02: SkipByDesign # 64-bit int not supported on the web
-LibTest/typed_data/ByteData/setInt64_A01_t01: SkipByDesign # 64-bit int not supported on the web
-LibTest/typed_data/ByteData/setInt64_A02_t01: SkipByDesign # 64-bit int not supported on the web
-LibTest/typed_data/ByteData/setInt64_A02_t02: SkipByDesign # 64-bit int not supported on the web
-LibTest/typed_data/ByteData/setUint64_A01_t01: SkipByDesign # 64-bit int not supported on the web
-LibTest/typed_data/ByteData/setUint64_A02_t01: SkipByDesign # 64-bit int not supported on the web
-LibTest/typed_data/ByteData/setUint64_A02_t02: SkipByDesign # 64-bit int not supported on the web
-LibTest/typed_data/Int64List/*: SkipByDesign # Int64List not supported on the web
-LibTest/typed_data/Uint64List/*: SkipByDesign # Uint64List not supported on the web
-
-[ $compiler == dart2js && $runtime == chrome ]
-LibTest/html/Window/animationFrame_A01_t01: SkipByDesign # Issue #53985: requestAnimationFrame is not executed on Chrome inactive tabs
-co19_2/LibTest/html/IFrameElement/blur_A01_t01: SkipByDesign # 62% flaky, unexplained, passes consistently in co19 suite (just flakes in co19_2)
-co19_2/LibTest/html/IFrameElement/focus_A01_t01: SkipByDesign # 80% flaky, unexplained, passes consistently in co19 suite (just flakes in co19_2)
-
-[ $compiler == dart2js && $runtime == d8 ]
-LibTest/html/*: SkipByDesign # d8 is not a browser
-
-[ $compiler == dart2js && $runtime == d8 && $host_checked ]
-LibTest/collection/ListBase/ListBase_class_A01_t04: Slow, Pass
-LibTest/collection/ListBase/ListBase_class_A01_t05: Slow, Pass
-LibTest/collection/ListBase/ListBase_class_A01_t06: Slow, Pass
-LibTest/collection/ListMixin/ListMixin_class_A01_t04: Slow, Pass
-LibTest/collection/ListMixin/ListMixin_class_A01_t05: Slow, Pass
-LibTest/collection/ListMixin/ListMixin_class_A01_t06: Slow, Pass
-LibTest/core/List/List_class_A01_t05: Slow, Pass
-LibTest/core/List/List_class_A01_t06: Slow, Pass
-
-[ $compiler == dart2js && $runtime == ie11 ]
-LibTest/collection/ListBase/ListBase_class_A01_t04: SkipSlow # slow babeljs transformation
-LibTest/collection/ListBase/ListBase_class_A01_t05: SkipSlow # slow babeljs transformation
-LibTest/collection/ListBase/ListBase_class_A01_t06: SkipSlow # slow babeljs transformation
-LibTest/collection/ListMixin/ListMixin_class_A01_t04: SkipSlow # slow babeljs transformation
-LibTest/collection/ListMixin/ListMixin_class_A01_t05: SkipSlow # slow babeljs transformation
-LibTest/collection/ListMixin/ListMixin_class_A01_t06: SkipSlow # slow babeljs transformation
-LibTest/core/List/List_class_A01_t04: SkipSlow # slow babeljs transformation
-LibTest/core/List/List_class_A01_t05: SkipSlow # slow babeljs transformation
-LibTest/core/List/List_class_A01_t06: SkipSlow # slow babeljs transformation
-
-[ $compiler == dart2js && $runtime == safari ]
-LibTest/html/Element/isContentEditable_A02_t01: Skip # evades flake detection https://github.com/dart-lang/sdk/issues/50718
-LibTest/html/IFrameElement/isContentEditable_A01_t01: Skip # evades flake detection https://github.com/dart-lang/sdk/issues/50718
diff --git a/tests/co19_2/co19_2-dartdevc.status b/tests/co19_2/co19_2-dartdevc.status
deleted file mode 100644
index c3f2d109e25..00000000000
--- a/tests/co19_2/co19_2-dartdevc.status
+++ /dev/null
@@ -1,129 +0,0 @@
-# Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-
-[ $compiler == ddc ]
-Language/Classes/Constructors/Generative_Constructors/formal_parameter_t07: SkipSlow
-Language/Classes/Constructors/Generative_Constructors/fresh_instance_t01: SkipSlow
-Language/Classes/Constructors/Generative_Constructors/implicit_superinitializer_t01: SkipSlow
-Language/Classes/Constructors/Generative_Constructors/implicit_superinitializer_t02: SkipSlow
-Language/Classes/Constructors/Generative_Constructors/initializers_t01: SkipSlow
-Language/Classes/Constructors/Generative_Constructors/initializers_t15: SkipSlow
-Language/Classes/Constructors/Generative_Constructors/initializing_formals_execution_t01: SkipSlow
-Language/Classes/Constructors/Generative_Constructors/initializing_this_t01: SkipSlow
-Language/Classes/Constructors/Generative_Constructors/redirection_t01: SkipSlow
-Language/Classes/Constructors/Generative_Constructors/syntax_t01: SkipSlow
-Language/Classes/Constructors/implicit_constructor_t01: SkipSlow
-Language/Classes/Constructors/implicit_constructor_t02: SkipSlow
-Language/Classes/Constructors/name_t01: SkipSlow
-Language/Classes/Constructors/name_t02: SkipSlow
-Language/Classes/Constructors/name_t03: SkipSlow
-Language/Classes/Getters/instance_getter_t01: SkipSlow
-Language/Classes/Getters/instance_getter_t02: SkipSlow
-Language/Classes/Getters/instance_getter_t03: SkipSlow
-Language/Classes/Getters/instance_getter_t04: SkipSlow
-Language/Classes/Getters/instance_getter_t05: SkipSlow
-Language/Classes/Getters/instance_getter_t06: SkipSlow
-Language/Classes/Getters/override_t04: SkipSlow
-Language/Classes/Getters/return_type_t01: SkipSlow
-Language/Classes/Getters/static_t01/none: SkipSlow
-Language/Classes/Getters/static_t02: SkipSlow
-Language/Classes/Getters/syntax_t01: SkipSlow
-Language/Classes/Getters/void_return_type_t01: SkipSlow
-Language/Classes/Instance_Methods/Operators/allowed_names_t01: SkipSlow
-Language/Classes/Instance_Methods/Operators/arity_0_or_1_t01: SkipSlow
-Language/Classes/Instance_Methods/Operators/arity_0_t01: SkipSlow
-Language/Classes/Instance_Methods/Operators/syntax_t01: SkipSlow
-Language/Classes/Instance_Methods/Operators/syntax_t03: SkipSlow
-Language/Classes/Instance_Methods/override_named_parameters_t03: SkipSlow
-Language/Classes/Instance_Methods/override_named_parameters_t04: SkipSlow
-Language/Classes/Instance_Methods/override_named_parameters_t06: SkipSlow
-Language/Classes/Instance_Methods/override_subtype_t05: SkipSlow
-Language/Classes/Instance_Methods/override_subtype_t06: SkipSlow
-Language/Classes/Instance_Methods/same_name_static_member_in_superclass_t01: SkipSlow
-Language/Classes/Instance_Methods/same_name_static_member_in_superclass_t02: SkipSlow
-Language/Classes/Instance_Methods/same_name_static_member_in_superclass_t04: SkipSlow
-Language/Classes/Instance_Methods/same_name_static_member_in_superclass_t05: SkipSlow
-Language/Classes/Instance_Methods/same_name_static_member_in_superclass_t06: SkipSlow
-Language/Classes/Instance_Methods/same_name_static_member_in_superclass_t07: SkipSlow
-Language/Classes/Instance_Methods/same_name_static_member_in_superclass_t08: SkipSlow
-Language/Classes/Instance_Methods/same_name_static_member_in_superclass_t09: SkipSlow
-Language/Classes/Instance_Variables/definition_t01: SkipSlow
-Language/Classes/Instance_Variables/definition_t02: SkipSlow
-Language/Classes/Instance_Variables/definition_t04: SkipSlow
-Language/Classes/Setters/instance_setter_t01: SkipSlow
-Language/Expressions/Constants/integer_size_t03: SkipByDesign # uses integer literal not representable as JavaScript number
-Language/Expressions/Constants/integer_size_t04: SkipByDesign # uses integer literal not representable as JavaScript number
-Language/Expressions/Constants/literal_number_t01: SkipByDesign # uses integer literal not representable as JavaScript number
-Language/Expressions/Constants/math_operators_t01: SkipByDesign # uses integer literal not representable as JavaScript number
-Language/Expressions/Constants/math_operators_t06: SkipByDesign # uses integer literal not representable as JavaScript number
-Language/Expressions/Numbers/integer_size_t03: SkipByDesign # uses integer literal not representable as JavaScript number
-Language/Expressions/Numbers/static_type_of_int_t01: SkipByDesign # uses integer literal not representable as JavaScript number
-Language/Expressions/Numbers/syntax_t06: SkipByDesign # uses integer literal not representable as JavaScript number
-Language/Expressions/Numbers/syntax_t09: SkipByDesign # uses integer literal not representable as JavaScript number
-Language/Expressions/Object_Identity/object_t02: SkipByDesign # https://github.com/dart-lang/sdk/issues/42222#issuecomment-640431711
-Language/Expressions/Spawning_an_Isolate/new_isolate_t01: SkipByDesign # dart:isolate not supported.
-Language/Functions/External_Functions/not_connected_to_a_body_t01: SkipByDesign # External variables are not supported
-Language/Libraries_and_Scripts/Scripts/top_level_main_t01: SkipByDesign # Uses dart:io.
-Language/Libraries_and_Scripts/Scripts/top_level_main_t06: SkipByDesign # Uses dart:io.
-Language/Libraries_and_Scripts/Scripts/top_level_syntax_t01: SkipByDesign # External variables are not supported
-Language/Libraries_and_Scripts/top_level_syntax_t01: SkipByDesign # External variables are not supported
-Language/Reference/Operator_Precedence/precedence_15_unary_prefix_t08: SkipByDesign # binary '~' produces different results in JavaScript and Dart
-Language/Types/Interface_Types/subtype_t27: SkipSlow
-Language/Types/Interface_Types/subtype_t28: SkipSlow
-LibTest/core/DateTime/DateTime.fromMicrosecondsSinceEpoch_A01_t01: SkipByDesign # microseconds are not supported in JavaScript
-LibTest/core/DateTime/microsecond_A01_t01: SkipByDesign # microseconds are not supported in JavaScript
-LibTest/core/DateTime/microsecondsSinceEpoch_A01_t01: SkipByDesign # microseconds are not supported in JavaScript
-LibTest/core/DateTime/to8601String_A01_t01: SkipByDesign # microseconds are not supported in JavaScript
-LibTest/core/DateTime/to8601String_A01_t02: SkipByDesign # microseconds are not supported in JavaScript
-LibTest/core/DateTime/to8601String_A01_t03: SkipByDesign # microseconds are not supported in JavaScript
-LibTest/core/int/operator_remainder_A01_t03: SkipByDesign # Division by zero is not an error in JavaScript
-LibTest/core/int/operator_truncating_division_A01_t02: SkipByDesign # Division by zero is not an error in JavaScript
-LibTest/core/int/parse_A01_t02: SkipByDesign # big integers cannot be represented in JavaScript
-LibTest/core/int/remainder_A01_t03: SkipByDesign # Division by zero is not an error in JavaScript
-LibTest/html/CanvasRenderingContext2D/addEventListener_A01_t03: SkipSlow
-LibTest/html/Element/blur_A01_t01: SkipSlow
-LibTest/html/Element/focus_A01_t01: SkipSlow
-LibTest/html/Element/loadEvent_A01_t01: SkipSlow
-LibTest/html/Element/mouseWheelEvent_A01_t01: SkipSlow
-LibTest/html/Element/onLoad_A01_t01: SkipSlow
-LibTest/html/Element/onMouseWheel_A01_t01: SkipSlow
-LibTest/html/Element/onTransitionEnd_A01_t01: SkipSlow
-LibTest/html/Element/transitionEndEvent_A01_t01: SkipSlow
-LibTest/html/HttpRequest/onError_A01_t02: SkipSlow
-LibTest/html/HttpRequest/responseText_A01_t02: SkipSlow
-LibTest/html/HttpRequestUpload/onError_A01_t02: SkipSlow
-LibTest/html/HttpRequestUpload/onLoadEnd_A01_t01: SkipSlow
-LibTest/html/HttpRequestUpload/onLoadStart_A01_t01: SkipSlow
-LibTest/html/HttpRequestUpload/onLoad_A01_t01: SkipSlow
-LibTest/html/IFrameElement/blur_A01_t01: SkipSlow
-LibTest/html/IFrameElement/enteredView_A01_t01: SkipSlow
-LibTest/html/IFrameElement/focus_A01_t01: SkipSlow
-LibTest/html/IFrameElement/onMouseWheel_A01_t01: SkipSlow
-LibTest/html/IFrameElement/onTransitionEnd_A01_t01: SkipSlow
-LibTest/io/*: SkipByDesign # dart:io not supported
-LibTest/isolate/*: SkipByDesign # dart:isolate not supported
-LibTest/mirrors/*: SkipByDesign # dart:mirrors not supported
-LibTest/typed_data/ByteBuffer/asInt64List_A01_t01: SkipByDesign # Int64List not supported on the web
-LibTest/typed_data/ByteBuffer/asInt64List_A02_t01: SkipByDesign # Int64List not supported on the web
-LibTest/typed_data/ByteBuffer/asInt64List_A03_t01: SkipByDesign # Int64List not supported on the web
-LibTest/typed_data/ByteBuffer/asUint64List_A01_t01: SkipByDesign # UInt64List not supported on the web
-LibTest/typed_data/ByteBuffer/asUint64List_A02_t01: SkipByDesign # UInt64List not supported on the web
-LibTest/typed_data/ByteBuffer/asUint64List_A03_t01: SkipByDesign # UInt64List not supported on the web
-LibTest/typed_data/ByteData/getInt64_A01_t01: SkipByDesign # 64-bit int not supported on the web
-LibTest/typed_data/ByteData/getInt64_A02_t01: SkipByDesign # 64-bit int not supported on the web
-LibTest/typed_data/ByteData/getInt64_A02_t02: SkipByDesign # 64-bit int not supported on the web
-LibTest/typed_data/ByteData/getUint64_A01_t01: SkipByDesign # 64-bit int not supported on the web
-LibTest/typed_data/ByteData/getUint64_A02_t01: SkipByDesign # 64-bit int not supported on the web
-LibTest/typed_data/ByteData/getUint64_A02_t02: SkipByDesign # 64-bit int not supported on the web
-LibTest/typed_data/ByteData/setInt64_A01_t01: SkipByDesign # 64-bit int not supported on the web
-LibTest/typed_data/ByteData/setInt64_A02_t01: SkipByDesign # 64-bit int not supported on the web
-LibTest/typed_data/ByteData/setInt64_A02_t02: SkipByDesign # 64-bit int not supported on the web
-LibTest/typed_data/ByteData/setUint64_A01_t01: SkipByDesign # 64-bit int not supported on the web
-LibTest/typed_data/ByteData/setUint64_A02_t01: SkipByDesign # 64-bit int not supported on the web
-LibTest/typed_data/ByteData/setUint64_A02_t02: SkipByDesign # 64-bit int not supported on the web
-LibTest/typed_data/Int64List/*: SkipByDesign # Int64List not supported on the web
-LibTest/typed_data/Uint64List/*: SkipByDesign # Uint64List not supported on the web
-
-[ $compiler == ddc && $runtime == chrome ]
-LibTest/html/Window/animationFrame_A01_t01: SkipByDesign # Issue #53985: requestAnimationFrame is not executed on Chrome inactive tabs
diff --git a/tests/co19_2/co19_2-kernel.status b/tests/co19_2/co19_2-kernel.status
deleted file mode 100644
index e1f2cb2c38a..00000000000
--- a/tests/co19_2/co19_2-kernel.status
+++ /dev/null
@@ -1,44 +0,0 @@
-# Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-
-[ $compiler == fasta ]
-LanguageFeatures/Instantiate-to-bound/typedef/static/typedef_l2_06_t04: SkipByDesign # Won't fix. See https://github.com/dart-lang/sdk/issues/46288
-
-[ $runtime == dart_precompiled ]
-LibTest/mirrors/*: SkipByDesign # dart:mirrors is not supported
-
-[ $runtime == vm ]
-LibTest/collection/ListBase/ListBase_class_A01_t02: Slow, Pass # Does many calls
-LibTest/collection/ListMixin/ListMixin_class_A01_t02: Slow, Pass # Does many calls
-LibTest/core/List/List_class_A01_t02: Slow, Pass # Does many calls
-LibTest/io/Stdout/add_A02_t03: SkipByDesign # Issue dart-lang/co19/issues/1509
-LibTest/io/Stdout/add_A02_t04: SkipByDesign
-LibTest/io/Stdout/add_A02_t05: SkipByDesign
-LibTest/io/Stdout/add_A02_t06: SkipByDesign
-LibTest/io/Stdout/add_A02_t07: SkipByDesign
-LibTest/io/Stdout/add_A02_t08: SkipByDesign
-LibTest/io/Stdout/add_A02_t09: SkipByDesign
-LibTest/io/Stdout/writeCharCode_A01_t03: SkipByDesign
-LibTest/io/Stdout/write_A01_t04: SkipByDesign
-LibTest/io/Stdout/write_A01_t05: SkipByDesign
-LibTest/io/exit/exit_A04_t01: SkipByDesign
-
-[ $compiler == dartk && $runtime == vm && $system == macos ]
-LibTest/collection/ListBase/ListBase_class_A01_t02: Slow, Pass
-LibTest/collection/ListBase/ListBase_class_A01_t03: Slow, Pass
-LibTest/collection/ListMixin/ListMixin_class_A01_t02: Slow, Pass
-LibTest/collection/ListMixin/ListMixin_class_A01_t03: Slow, Pass
-LibTest/core/List/List_class_A01_t02: Slow, Pass
-LibTest/core/List/List_class_A01_t03: Slow, Pass
-
-[ $runtime == dart_precompiled && $simulator ]
-LibTest/collection/ListBase/ListBase_class_A01_t01: SkipSlow # Issue 43036
-LibTest/collection/ListMixin/ListMixin_class_A01_t01: SkipSlow # Issue 43036
-
-# It makes no sense to run any test that uses spawnURI under the simulator
-# as that would involve running CFE (the front end) in simulator mode
-# to compile the URI file specified in spawnURI code.
-# These Isolate tests that use spawnURI are hence skipped on purpose.
-[ $runtime == dart_precompiled || $runtime == vm && $simulator ]
-LibTest/isolate/Isolate/spawnUri*: Skip
diff --git a/tests/co19_2/co19_2-runtime.status b/tests/co19_2/co19_2-runtime.status
deleted file mode 100644
index 84fc2c4720a..00000000000
--- a/tests/co19_2/co19_2-runtime.status
+++ /dev/null
@@ -1,35 +0,0 @@
-# Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-
-[ $system == windows ]
-LibTest/io/ProcessResult/exitCode_A01_t02: Skip # Issue 32138
-LibTest/io/Stdin/readByteSync_A01_t01: Skip # Issue 32138
-LibTest/io/Stdin/readByteSync_A01_t02: Skip # Issue 32138
-
-[ $simulator ]
-LibTest/collection/ListBase/ListBase_class_A01_t01: SkipSlow # Very slow on sim* architectures.
-LibTest/collection/ListBase/ListBase_class_A01_t04: SkipSlow # Very slow on sim* architectures.
-LibTest/collection/ListBase/ListBase_class_A01_t05: SkipSlow # Very slow on sim* architectures.
-LibTest/collection/ListBase/ListBase_class_A01_t06: SkipSlow # Very slow on sim* architectures.
-LibTest/collection/ListMixin/ListMixin_class_A01_t01: SkipSlow # Very slow on sim* architectures.
-LibTest/collection/ListMixin/ListMixin_class_A01_t04: SkipSlow # Very slow on sim* architectures.
-LibTest/collection/ListMixin/ListMixin_class_A01_t05: SkipSlow # Very slow on sim* architectures.
-LibTest/collection/ListMixin/ListMixin_class_A01_t06: SkipSlow # Very slow on sim* architectures.
-
-[ $mode == debug && $runtime == dart_precompiled ]
-LibTest/collection/ListBase/ListBase_class_A01_t03: SkipSlow # Very slow compilation in debug mode.
-LibTest/collection/ListBase/ListBase_class_A01_t04: SkipSlow # Very slow compilation in debug mode.
-LibTest/collection/ListBase/ListBase_class_A01_t05: SkipSlow # Very slow compilation in debug mode.
-LibTest/collection/ListBase/ListBase_class_A01_t06: SkipSlow # Very slow compilation in debug mode.
-LibTest/collection/ListMixin/ListMixin_class_A01_t03: SkipSlow # Very slow compilation in debug mode.
-LibTest/collection/ListMixin/ListMixin_class_A01_t04: SkipSlow # Very slow compilation in debug mode.
-LibTest/collection/ListMixin/ListMixin_class_A01_t05: SkipSlow # Very slow compilation in debug mode.
-LibTest/collection/ListMixin/ListMixin_class_A01_t06: SkipSlow # Very slow compilation in debug mode.
-
-[ $runtime == dart_precompiled && $simulator ]
-LibTest/async/Stream/Stream.periodic_all_t02: Skip # Issue 42898
-
-[ $compiler == fasta || $runtime == dart_precompiled || $runtime == vm ]
-Language/Expressions/Numbers/syntax_t34: SkipByDesign # expects integer literal error that only occurs in JS
-LibTest/html/*: SkipByDesign # dart:html not supported on VM.
diff --git a/tests/co19_2/update.sh b/tests/co19_2/update.sh
deleted file mode 100755
index b910c1edf3e..00000000000
--- a/tests/co19_2/update.sh
+++ /dev/null
@@ -1,39 +0,0 @@
-#!/usr/bin/env bash
-# Uploads a new version of the co19_2 CIPD package.
-
-set -e
-set -x
-
-if [ ! -e tests/co19_2 ]; then
-  echo "$0: error: Run this script at the root of the Dart SDK" >&2
-  exit 1
-fi
-
-# Find the latest co19 commit.
-rm -rf tests/co19_2/src.git
-git clone https://dart.googlesource.com/co19 tests/co19_2/src.git
-CO19=tests/co19_2/src.git
-OLD=$(gclient getdep --var=co19_2_rev)
-NEW=$(cd $CO19 && git fetch origin && git rev-parse origin/pre-nnbd)
-
-git fetch origin
-git branch cl-co19-roll-co19-to-$NEW origin/main
-git checkout cl-co19-roll-co19-to-$NEW
-
-# Update DEPS:
-gclient setdep --var=co19_2_rev=$NEW
-
-# Make a nice commit. Don't include the '#' character to avoid referencing Dart
-# SDK issues.
-git commit DEPS -m \
-  "$(printf "[co19] Roll co19_2 to $NEW\n\n" \
-  && cd $CO19 \
-  && git log --date='format:%Y-%m-%d' --pretty='format:%ad %ae %s' $OLD..$NEW \
-    | sed 's/\#/dart-lang\/co19\#/g')"
-
-rm -rf tests/co19_2/src.git
-
-GIT_EDITOR=true git cl upload
-ISSUE=$(git config --get branch.cl-co19-roll-co19-to-$NEW.gerritissue)
-
-git cl web
diff --git a/tests/corelib_2/apply2_test.dart b/tests/corelib_2/apply2_test.dart
deleted file mode 100644
index 95401d40b4a..00000000000
--- a/tests/corelib_2/apply2_test.dart
+++ /dev/null
@@ -1,101 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=
-// VMOptions=--dwarf_stack_traces --no-retain_function_objects --no-retain_code_objects
-
-import "package:expect/expect.dart";
-
-apply(Function function, List positional, Map<Symbol, dynamic> named) {
-  return Function.apply(function, positional, named);
-}
-
-void throwsNSME(
-    Function function, List positional, Map<Symbol, dynamic> named) {
-  Expect.throwsNoSuchMethodError(() => apply(function, positional, named));
-}
-
-main() {
-  var c1 = () => 'c1';
-  var c2 = (a) => 'c2 $a';
-  var c3 = ([a = 1]) => 'c3 $a';
-  var c4 = ({a: 1}) => 'c4 $a';
-  var c5 = ({a: 1, b: 2}) => 'c5 $a $b';
-  var c6 = ({b: 1, a: 2}) => 'c6 $a $b';
-  var c7 = (x, {b: 1, a: 2}) => 'c7 $x $a $b';
-  var c8 = (x, y, [a = 2, b = 3]) => 'c8 $x $y $a $b';
-
-  Expect.equals('c1', apply(c1, null, null));
-  Expect.equals('c1', apply(c1, [], null));
-  Expect.equals('c1', apply(c1, [], {}));
-  Expect.equals('c1', apply(c1, null, {}));
-  throwsNSME(c1, [1], null);
-  throwsNSME(c1, [1], {#a: 2});
-  throwsNSME(c1, null, {#a: 2});
-
-  Expect.equals('c2 1', apply(c2, [1], null));
-  Expect.equals('c2 1', apply(c2, [1], {}));
-  throwsNSME(c2, null, null);
-  throwsNSME(c2, [], null);
-  throwsNSME(c2, null, {});
-  throwsNSME(c2, null, {#a: 1});
-  throwsNSME(c2, [2], {#a: 1});
-
-  Expect.equals('c3 1', apply(c3, null, null));
-  Expect.equals('c3 1', apply(c3, [], null));
-  Expect.equals('c3 2', apply(c3, [2], {}));
-  throwsNSME(c3, [1, 2], null);
-  throwsNSME(c3, null, {#a: 1});
-
-  Expect.equals('c4 1', apply(c4, [], null));
-  Expect.equals('c4 2', apply(c4, [], {#a: 2}));
-  Expect.equals('c4 1', apply(c4, null, null));
-  Expect.equals('c4 1', apply(c4, [], {}));
-  throwsNSME(c4, [1], {#a: 1});
-  throwsNSME(c4, [1], {});
-  throwsNSME(c4, [], {#a: 1, #b: 2});
-
-  Expect.equals('c5 1 2', apply(c5, [], null));
-  Expect.equals('c5 3 2', apply(c5, [], {#a: 3}));
-  Expect.equals('c5 1 2', apply(c5, null, null));
-  Expect.equals('c5 1 2', apply(c5, [], {}));
-  Expect.equals('c5 3 4', apply(c5, [], {#a: 3, #b: 4}));
-  Expect.equals('c5 4 3', apply(c5, [], {#b: 3, #a: 4}));
-  Expect.equals('c5 1 3', apply(c5, [], {#b: 3}));
-  throwsNSME(c5, [1], {#a: 1});
-  throwsNSME(c5, [1], {});
-  throwsNSME(c5, [], {#a: 1, #b: 2, #c: 3});
-
-  Expect.equals('c6 2 1', apply(c6, [], null));
-  Expect.equals('c6 3 1', apply(c6, [], {#a: 3}));
-  Expect.equals('c6 2 1', apply(c6, null, null));
-  Expect.equals('c6 2 1', apply(c6, [], {}));
-  Expect.equals('c6 3 4', apply(c6, [], {#a: 3, #b: 4}));
-  Expect.equals('c6 4 3', apply(c6, [], {#b: 3, #a: 4}));
-  Expect.equals('c6 2 3', apply(c6, [], {#b: 3}));
-  throwsNSME(c6, [1], {#a: 1});
-  throwsNSME(c6, [1], {});
-  throwsNSME(c6, [], {#a: 1, #b: 2, #c: 3});
-
-  Expect.equals('c7 7 2 1', apply(c7, [7], null));
-  Expect.equals('c7 7 3 1', apply(c7, [7], {#a: 3}));
-  Expect.equals('c7 7 2 1', apply(c7, [7], {}));
-  Expect.equals('c7 7 3 4', apply(c7, [7], {#a: 3, #b: 4}));
-  Expect.equals('c7 7 4 3', apply(c7, [7], {#b: 3, #a: 4}));
-  Expect.equals('c7 7 2 3', apply(c7, [7], {#b: 3}));
-  throwsNSME(c7, [], {#a: 1});
-  throwsNSME(c7, [], {});
-  throwsNSME(c7, [7], {#a: 1, #b: 2, #c: 3});
-
-  Expect.equals('c8 7 8 2 3', apply(c8, [7, 8], null));
-  Expect.equals('c8 7 8 2 3', apply(c8, [7, 8], {}));
-  Expect.equals('c8 7 8 3 3', apply(c8, [7, 8, 3], null));
-  Expect.equals('c8 7 8 3 4', apply(c8, [7, 8, 3, 4], null));
-  throwsNSME(c8, [], null);
-  throwsNSME(c8, [], {});
-  throwsNSME(c8, [1], null);
-  throwsNSME(c8, [7, 8, 9, 10, 11], null);
-}
diff --git a/tests/corelib_2/apply3_test.dart b/tests/corelib_2/apply3_test.dart
deleted file mode 100644
index 541b345246c..00000000000
--- a/tests/corelib_2/apply3_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test [Function.apply] on user-defined classes that implement [noSuchMethod].
-
-import "package:expect/expect.dart";
-
-class F {
-  call([p1]) => "call";
-  noSuchMethod(Invocation invocation) => "NSM";
-}
-
-class G {
-  call() => '42';
-  noSuchMethod(Invocation invocation) => invocation;
-}
-
-class H {
-  call(required, {a}) => required + a;
-}
-
-main() {
-  Expect.equals('call', Function.apply(new F(), []));
-  Expect.equals('call', Function.apply(new F(), [1]));
-  Expect.throwsNoSuchMethodError(() => Function.apply(new F(), [1, 2]));
-  Expect.throwsNoSuchMethodError(() => Function.apply(new F(), [1, 2, 3]));
-
-  Expect.throwsNoSuchMethodError(() => Function.apply(new G(), [1], {#a: 42}));
-
-  // Test that [i] can be used to hit an existing method.
-  Expect.equals(43, new H().call(1, a: 42));
-  Expect.equals(43, Function.apply(new H(), [1], {#a: 42}));
-}
diff --git a/tests/corelib_2/apply4_test.dart b/tests/corelib_2/apply4_test.dart
deleted file mode 100644
index 2a8ddf59be5..00000000000
--- a/tests/corelib_2/apply4_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Testing Function.apply calls work correctly for arities that are not
-// otherwise present in the program (and thus might not have stubs
-// generated).
-
-class A {
-  foo(x, [y, z, a, b, c, d = 99, e, f, g, h, i, j]) => "$x $d";
-}
-
-main() {
-  var a = new A();
-  var clos = a.foo;
-  Expect.equals(Function.apply(clos, ["well"]), "well 99");
-  Expect.equals(Function.apply(clos, ["well", 0, 2, 4, 3, 6, 9, 10]), "well 9");
-}
diff --git a/tests/corelib_2/apply5_test.dart b/tests/corelib_2/apply5_test.dart
deleted file mode 100644
index 01005a02b2f..00000000000
--- a/tests/corelib_2/apply5_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Testing that, when compiled to JS, Function.apply works correctly for
-// functions with that will be invoked directly vs using .apply().
-
-class A {
-  foo([a = 10, b = 20, c = 30, d = 40, e = 50]) => "$a $b $c $d $e";
-}
-
-main() {
-  var a = new A();
-  var clos = a.foo;
-  Expect.equals(Function.apply(clos, []), "10 20 30 40 50");
-  Expect.equals(Function.apply(clos, [11]), "11 20 30 40 50");
-  Expect.equals(Function.apply(clos, [11, 21]), "11 21 30 40 50");
-  Expect.equals(Function.apply(clos, [11, 21, 31]), "11 21 31 40 50");
-  Expect.equals(Function.apply(clos, [11, 21, 31, 41]), "11 21 31 41 50");
-  Expect.equals(Function.apply(clos, [11, 21, 31, 41, 51]), "11 21 31 41 51");
-}
diff --git a/tests/corelib_2/apply6_test.dart b/tests/corelib_2/apply6_test.dart
deleted file mode 100644
index 0ba08f8617e..00000000000
--- a/tests/corelib_2/apply6_test.dart
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart=2.9
-
-// Test that the List of positional arguments to [Function.apply] is not
-// modified.
-
-import "package:expect/expect.dart";
-
-class A {
-  foo([
-    a = 10,
-    b = 20,
-    c = 30,
-    d = 40,
-    e = 50,
-    f = 60,
-    g = 70,
-    h = 80,
-    i = 90,
-  ]) =>
-      '$a $b $c $d $e $f $g $h $i';
-}
-
-String static1(a, b, {c = 30, d = 40}) => '$a $b $c $d';
-
-void test(String expected, Function function, List positional,
-    [Map<Symbol, dynamic> named = null]) {
-  final original = List.of(positional);
-
-  Expect.equals(expected, Function.apply(function, positional, named));
-  Expect.listEquals(original, positional);
-
-  // Test again so there are multiple call sites for `Function.apply`.
-  Expect.equals(expected, Function.apply(function, positional, named));
-  Expect.listEquals(original, positional);
-}
-
-main() {
-  var a = A();
-
-  test('10 20 30 40 50 60 70 80 90', a.foo, []);
-  test('11 20 30 40 50 60 70 80 90', a.foo, [11]);
-  test('11 22 30 40 50 60 70 80 90', a.foo, [11, 22]);
-  test('11 22 33 40 50 60 70 80 90', a.foo, [11, 22, 33]);
-  test('11 22 33 44 50 60 70 80 90', a.foo, [11, 22, 33, 44]);
-  test('11 22 33 44 55 60 70 80 90', a.foo, [11, 22, 33, 44, 55]);
-  test('11 22 33 44 55 66 70 80 90', a.foo, [11, 22, 33, 44, 55, 66]);
-  test('11 22 33 44 55 66 77 80 90', a.foo, [11, 22, 33, 44, 55, 66, 77]);
-  test('11 22 33 44 55 66 77 88 90', a.foo, [11, 22, 33, 44, 55, 66, 77, 88]);
-  test('11 22 33 44 55 66 77 88 99', a.foo,
-      [11, 22, 33, 44, 55, 66, 77, 88, 99]);
-
-  // Some unmodifiable Lists. An attempt to modify the argument would fail.
-  test('11 22 33 44 55 66 77 80 90', a.foo, const [11, 22, 33, 44, 55, 66, 77]);
-  test('65 66 67 68 69 70 71 80 90', a.foo, 'ABCDEFG'.codeUnits);
-
-  test('11 22 30 40', static1, [11, 22]);
-  test('11 22 30 40', static1, [11, 22], {});
-  test('11 22 33 40', static1, [11, 22], {#c: 33});
-  test('11 22 30 44', static1, [11, 22], {#d: 44});
-  test('11 22 66 55', static1, [11, 22], {#d: 55, #c: 66});
-
-  test('11 22 88 77', static1, const [11, 22], {#d: 77, #c: 88});
-  test('65 66 11 22', static1, 'AB'.codeUnits, {#d: 22, #c: 11});
-}
diff --git a/tests/corelib_2/apply_generic_function_test.dart b/tests/corelib_2/apply_generic_function_test.dart
deleted file mode 100644
index e4246d9842c..00000000000
--- a/tests/corelib_2/apply_generic_function_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "symbol_map_helper.dart";
-
-// Testing Function.apply calls correctly with generic type arguments.
-// This test is not testing error handling, only that correct parameters
-// cause a correct call.
-
-test0<T extends num>(T i, T j, {T a}) => i + j + a;
-
-main() {
-  test(res, func, list, map) {
-    map = symbolMapToStringMap(map);
-    Expect.equals(res, Function.apply(func, list, map));
-  }
-
-  test(42, test0, [10, 15], {"a": 17});
-}
diff --git a/tests/corelib_2/apply_test.dart b/tests/corelib_2/apply_test.dart
deleted file mode 100644
index 981925adbc0..00000000000
--- a/tests/corelib_2/apply_test.dart
+++ /dev/null
@@ -1,85 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "symbol_map_helper.dart";
-
-// Testing Function.apply calls correctly.
-// This test is not testing error handling, only that correct parameters
-// cause a correct call.
-
-int test0() => 42;
-int test0a({int a}) => 37 + a;
-int test1(int i) => i + 1;
-int test1a(int i, {int a}) => i + a;
-int test2(int i, int j) => i + j;
-int test2a(int i, int j, {int a}) => i + j + a;
-
-class C {
-  int x = 10;
-  int foo(y) => this.x + y;
-}
-
-class Callable {
-  int call(int x, int y) => x + y;
-}
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-main() {
-  testMap(res, func, map) {
-    Expect.equals(res, Function.apply(func, null, map));
-    Expect.equals(res, Function.apply(func, [], map));
-  }
-
-  testList(res, func, list) {
-    Expect.equals(res, Function.apply(func, list));
-    Expect.equals(res, Function.apply(func, list, null));
-    Expect.equals(res, Function.apply(func, list, new Map<Symbol, dynamic>()));
-  }
-
-  testListTyped(res, Function func, list) => testList(res, func, list);
-
-  test(res, func, list, map) {
-    Expect.equals(res, Function.apply(func, list, map));
-  }
-
-  testList(42, test0, null);
-  testList(42, test0, []);
-  testMap(42, test0a, {#a: 5});
-  testList(42, test1, [41]);
-  test(42, test1a, [20], {#a: 22});
-  testList(42, test2, [20, 22]);
-  test(42, test2a, [10, 15], {#a: 17});
-
-  // Test that "this" is correct when calling closurized functions.
-  var cfoo = new C().foo;
-  testList(42, cfoo, [32]);
-
-  // Test that apply works even with a different name.
-  var app = confuse(Function.apply);
-  Expect.equals(42, app(test2, [22, 20]));
-
-  // Test that apply can itself be applied.
-  Expect.equals(
-      42,
-      Function.apply(Function.apply, [
-        test2,
-        [17, 25]
-      ]));
-
-  // Test that apply works on callable objects when it is passed to a method
-  // that expects Function (and not dynamic).
-  if (dart2jsProductionMode) {
-    testList(42, new Callable(), [13, 29]);
-  } else {
-    Expect.throws(() => testList(42, new Callable(), [13, 29]));
-  }
-
-  testListTyped(42, new Callable(), [13, 29]);
-}
diff --git a/tests/corelib_2/bigint_add_test.dart b/tests/corelib_2/bigint_add_test.dart
deleted file mode 100644
index 20e8e665986..00000000000
--- a/tests/corelib_2/bigint_add_test.dart
+++ /dev/null
@@ -1,142 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing Bigints with and without intrinsics.
-// VMOptions=--intrinsify --no-enable-asserts
-// VMOptions=--intrinsify --enable-asserts
-// VMOptions=--no-intrinsify --enable-asserts
-// VMOptions=--no-intrinsify --no-enable-asserts
-
-import "package:expect/expect.dart";
-
-expectSum(aString, bString, expectedString) {
-  BigInt a = BigInt.parse(aString, radix: 16);
-  BigInt b = BigInt.parse(bString, radix: 16);
-  BigInt expected = BigInt.parse(expectedString, radix: 16);
-  BigInt actual = a + b;
-  String actualString = actual.toRadixString(16);
-  print("$aString + $bString");
-  print(" = $actualString (expected $expectedString)");
-  Expect.equals(expected, actual);
-}
-
-main() {
-  expectSum(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "1ad478de9e340aba6cb25ae8dbb531d2bc0105fa0");
-  expectSum(
-      "d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "1ad478de9e340aba6cb25ae8dbb531d2bc0105fa0");
-  expectSum(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "a13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "d87c8de9e340aba6cb25ae8dbb531d2bc0105fa0");
-  expectSum(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "3fac3ee22b996ff6856c27c1f6d88aef0e",
-      "d87bece9e340aba6cb25ae8dbb531d2bc0105fa0");
-  expectSum(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "ac3ee22b996ff6856c27c1f6d88aef0e",
-      "d87becaae340aba6cb25ae8dbb531d2bc0105fa0");
-  expectSum(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "3ee22b996ff6856c27c1f6d88aef0e",
-      "d87becaa3740aba6cb25ae8dbb531d2bc0105fa0");
-  expectSum("d87becaa3701c97b31b5b8084f2b5b34e7857092", "1",
-      "d87becaa3701c97b31b5b8084f2b5b34e7857093");
-  expectSum("d87becaa3701c97b31b5b8084f2b5b34e7857092", "0",
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092");
-
-  expectSum(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-3b04b6a8ac2e74f9845c182e303993e0efa8184");
-  expectSum(
-      "-d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "3b04b6a8ac2e74f9845c182e303993e0efa8184");
-  expectSum(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "a13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-d87b4b6a8ac2e74f9845c182e303993e0efa8184");
-  expectSum(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "3fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-d87bec6a8ac2e74f9845c182e303993e0efa8184");
-  expectSum(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "ac3ee22b996ff6856c27c1f6d88aef0e",
-      "-d87beca98ac2e74f9845c182e303993e0efa8184");
-  expectSum(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "3ee22b996ff6856c27c1f6d88aef0e",
-      "-d87becaa36c2e74f9845c182e303993e0efa8184");
-  expectSum("-d87becaa3701c97b31b5b8084f2b5b34e7857092", "1",
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857091");
-  expectSum("-d87becaa3701c97b31b5b8084f2b5b34e7857092", "0",
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092");
-
-  expectSum(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "3b04b6a8ac2e74f9845c182e303993e0efa8184");
-  expectSum(
-      "d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-3b04b6a8ac2e74f9845c182e303993e0efa8184");
-  expectSum(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-a13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "d87b4b6a8ac2e74f9845c182e303993e0efa8184");
-  expectSum(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-3fac3ee22b996ff6856c27c1f6d88aef0e",
-      "d87bec6a8ac2e74f9845c182e303993e0efa8184");
-  expectSum(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-ac3ee22b996ff6856c27c1f6d88aef0e",
-      "d87beca98ac2e74f9845c182e303993e0efa8184");
-  expectSum(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-3ee22b996ff6856c27c1f6d88aef0e",
-      "d87becaa36c2e74f9845c182e303993e0efa8184");
-  expectSum("d87becaa3701c97b31b5b8084f2b5b34e7857092", "-1",
-      "d87becaa3701c97b31b5b8084f2b5b34e7857091");
-  expectSum("d87becaa3701c97b31b5b8084f2b5b34e7857092", "-0",
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092");
-
-  expectSum(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-1ad478de9e340aba6cb25ae8dbb531d2bc0105fa0");
-  expectSum(
-      "-d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-1ad478de9e340aba6cb25ae8dbb531d2bc0105fa0");
-  expectSum(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-a13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-d87c8de9e340aba6cb25ae8dbb531d2bc0105fa0");
-  expectSum(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-3fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-d87bece9e340aba6cb25ae8dbb531d2bc0105fa0");
-  expectSum(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-ac3ee22b996ff6856c27c1f6d88aef0e",
-      "-d87becaae340aba6cb25ae8dbb531d2bc0105fa0");
-  expectSum(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-3ee22b996ff6856c27c1f6d88aef0e",
-      "-d87becaa3740aba6cb25ae8dbb531d2bc0105fa0");
-  expectSum("-d87becaa3701c97b31b5b8084f2b5b34e7857092", "-1",
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857093");
-  expectSum("-d87becaa3701c97b31b5b8084f2b5b34e7857092", "-0",
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092");
-}
diff --git a/tests/corelib_2/bigint_bitlength_test.dart b/tests/corelib_2/bigint_bitlength_test.dart
deleted file mode 100644
index c4e72a84b66..00000000000
--- a/tests/corelib_2/bigint_bitlength_test.dart
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Testing Bigints with and without intrinsics.
-// VMOptions=--intrinsify --no-enable-asserts
-// VMOptions=--intrinsify --enable-asserts
-// VMOptions=--no-intrinsify --enable-asserts
-// VMOptions=--no-intrinsify --no-enable-asserts
-
-import "package:expect/expect.dart";
-
-const debugPrint = bool.fromEnvironment('debugPrint');
-
-void check(int length, BigInt base) {
-  assert(length >= 5);
-  assert(base > BigInt.zero);
-
-  // Check with slight adjustments. We choose -3..+3 so that the lowest bit in
-  // the 2's-complement representation is both zero and one for both the
-  // positive [n] and its negative complement [m] below.
-  for (int delta = -3; delta <= 3; delta++) {
-    BigInt n = base + BigInt.from(delta);
-    assert(n >= BigInt.zero);
-
-    // Compute the bitLength by shifting the value into a small integer range
-    // and adjust the `int.bitLength` value by the shift count.
-    int shiftCount = length - 5;
-    int shiftedN = (n >> shiftCount).toInt();
-    int expectedLength = shiftCount + shiftedN.bitLength;
-
-    int nLength = n.bitLength;
-    Expect.equals(expectedLength, nLength);
-
-    // Use identity `x.bitLength == (-x-1).bitLength` to check negative values.
-    BigInt m = -n - BigInt.one;
-    int mLength = m.bitLength;
-
-    if (debugPrint) {
-      final printLength = length + 4;
-      final nDigits =
-          n.toUnsigned(printLength).toRadixString(2).padLeft(printLength);
-      final mDigits = m.toUnsigned(printLength).toRadixString(2);
-      print('$nDigits: $nLength');
-      print('$mDigits: $mLength');
-    }
-
-    Expect.equals(nLength, mLength);
-  }
-}
-
-void main() {
-  // For small values, [BigInt.bitLength] should be the same as [int.bitLength].
-  for (int i = 0; i <= 64; i++) {
-    Expect.equals(i.bitLength, BigInt.from(i).bitLength);
-    // Note: This is not quite redundant for `i==0` since on the web platform
-    // `-i` is negative zero and not the same as `0-i`.
-    Expect.equals((-i).bitLength, BigInt.from(-i).bitLength);
-  }
-
-  // Test x.bitLength for a large variety of lengths.
-  for (int length = 5; length <= 512; length++) {
-    BigInt base = BigInt.one << (length - 1);
-    Expect.equals(length, base.bitLength);
-
-    // Power of two.
-    check(length, base);
-
-    // Two high bits set.
-    check(length, base | base >> 1);
-
-    // Check for values with an additional bit set near a potential internal
-    // digit boundary.
-    for (int i1 = 16; i1 < length; i1 += 16) {
-      for (int i2 = -1; i2 <= 1; i2++) {
-        int i = i1 + i2;
-        if (i < length - 1) {
-          check(length, base | BigInt.one << (i - 1));
-        }
-      }
-    }
-  }
-}
diff --git a/tests/corelib_2/bigint_div_test.dart b/tests/corelib_2/bigint_div_test.dart
deleted file mode 100644
index 589dedbe623..00000000000
--- a/tests/corelib_2/bigint_div_test.dart
+++ /dev/null
@@ -1,86 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing Bigints with and without intrinsics.
-// VMOptions=--intrinsify --no-enable-asserts
-// VMOptions=--intrinsify --enable-asserts
-// VMOptions=--no-intrinsify --enable-asserts
-// VMOptions=--no-intrinsify --no-enable-asserts
-
-import "package:expect/expect.dart";
-
-expectQuotient(aString, bString, expectedString) {
-  BigInt a = BigInt.parse(aString, radix: 16);
-  BigInt b = BigInt.parse(bString, radix: 16);
-  BigInt expected = BigInt.parse(expectedString, radix: 16);
-  BigInt actual = a ~/ b;
-  String actualString = actual.toRadixString(16);
-  print("$aString ~/ $bString");
-  print(" = $actualString (expected $expectedString)");
-  Expect.equals(expected, actual);
-}
-
-main() {
-  expectQuotient("d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "d4cba13fac3ee22b996ff6856c27c1f6d88aef0e", "1");
-  expectQuotient("d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092", "0");
-  expectQuotient("d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "a13fac3ee22b996ff6856c27c1f6d88aef0e", "157b1");
-  expectQuotient("d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "3fac3ee22b996ff6856c27c1f6d88aef0e", "36662bd");
-  expectQuotient("d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "ac3ee22b996ff6856c27c1f6d88aef0e", "141bfd63e");
-  expectQuotient("d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "3ee22b996ff6856c27c1f6d88aef0e", "3714fb67de7");
-  expectQuotient("d87becaa3701c97b31b5b8084f2b5b34e7857092", "1",
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092");
-
-  expectQuotient("-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "d4cba13fac3ee22b996ff6856c27c1f6d88aef0e", "-1");
-  expectQuotient("-d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092", "0");
-  expectQuotient("-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "a13fac3ee22b996ff6856c27c1f6d88aef0e", "-157b1");
-  expectQuotient("-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "3fac3ee22b996ff6856c27c1f6d88aef0e", "-36662bd");
-  expectQuotient("-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "ac3ee22b996ff6856c27c1f6d88aef0e", "-141bfd63e");
-  expectQuotient("-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "3ee22b996ff6856c27c1f6d88aef0e", "-3714fb67de7");
-  expectQuotient("-d87becaa3701c97b31b5b8084f2b5b34e7857092", "1",
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092");
-
-  expectQuotient("d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-d4cba13fac3ee22b996ff6856c27c1f6d88aef0e", "-1");
-  expectQuotient("d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092", "0");
-  expectQuotient("d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-a13fac3ee22b996ff6856c27c1f6d88aef0e", "-157b1");
-  expectQuotient("d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-3fac3ee22b996ff6856c27c1f6d88aef0e", "-36662bd");
-  expectQuotient("d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-ac3ee22b996ff6856c27c1f6d88aef0e", "-141bfd63e");
-  expectQuotient("d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-3ee22b996ff6856c27c1f6d88aef0e", "-3714fb67de7");
-  expectQuotient("d87becaa3701c97b31b5b8084f2b5b34e7857092", "-1",
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092");
-
-  expectQuotient("-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-d4cba13fac3ee22b996ff6856c27c1f6d88aef0e", "1");
-  expectQuotient("-d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092", "0");
-  expectQuotient("-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-a13fac3ee22b996ff6856c27c1f6d88aef0e", "157b1");
-  expectQuotient("-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-3fac3ee22b996ff6856c27c1f6d88aef0e", "36662bd");
-  expectQuotient("-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-ac3ee22b996ff6856c27c1f6d88aef0e", "141bfd63e");
-  expectQuotient("-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-3ee22b996ff6856c27c1f6d88aef0e", "3714fb67de7");
-  expectQuotient("-d87becaa3701c97b31b5b8084f2b5b34e7857092", "-1",
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092");
-}
diff --git a/tests/corelib_2/bigint_from_test.dart b/tests/corelib_2/bigint_from_test.dart
deleted file mode 100644
index ddda982089c..00000000000
--- a/tests/corelib_2/bigint_from_test.dart
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing Bigints with and without intrinsics.
-// VMOptions=--intrinsify --no-enable-asserts
-// VMOptions=--intrinsify --enable-asserts
-// VMOptions=--no-intrinsify --enable-asserts
-// VMOptions=--optimization-counter-threshold=20 --no-background-compilation
-// VMOptions=--dwarf_stack_traces --no-retain_function_objects --no-retain_code_objects
-
-import "package:expect/expect.dart";
-
-import 'dart:math' show pow;
-
-main() {
-  // Test integers.
-  testInt(0);
-  for (int i = 0; i < 63; i++) {
-    var n = pow(2, i);
-    testInt(-n - 1);
-    testInt(-n);
-    testInt(-n + 1);
-    testInt(n - 1);
-    testInt(n);
-    testInt(n + 1);
-  }
-  testInt(-0x8000000000000000);
-
-  // Test doubles.
-  testDouble(0.0);
-  testDouble(-0.0, 0.0);
-  for (double d in [
-    1.0,
-    2.0,
-    pow(2.0, 30) - 1,
-    pow(2.0, 30),
-    pow(2.0, 31) - 1,
-    pow(2.0, 31),
-    pow(2.0, 31) + 1,
-    pow(2.0, 32) - 1,
-    pow(2.0, 32),
-    pow(2.0, 32) + 1,
-    pow(2.0, 52) - 1,
-    pow(2.0, 52),
-    pow(2.0, 52) + 1,
-    pow(2.0, 53) - 1,
-    pow(2.0, 53),
-  ]) {
-    for (int p = 0; p < 1024; p++) {
-      var value = d * pow(2.0, p); // Valid integer value.
-      if (!value.isFinite) break;
-      testDouble(-value);
-      testDouble(value);
-    }
-  }
-  Expect.equals(BigInt.zero, new BigInt.from(0.5));
-  Expect.equals(BigInt.one, new BigInt.from(1.5));
-
-  Expect.throws(() => new BigInt.from(double.infinity));
-  Expect.throws(() => new BigInt.from(-double.infinity));
-  Expect.throws(() => new BigInt.from(double.nan));
-}
-
-testInt(int n) {
-  var bigint = new BigInt.from(n);
-  Expect.equals(n, bigint.toInt());
-
-  // If the integers are inexact (e.g. > 2^53 when represented by doubles as
-  // when compiled to JavaScript numbers) then the 'toString' might be rounded
-  // to the nearest equivalent 'nicer looking' number.
-  if (n == n + 1 || n == n - 1) return;
-
-  Expect.equals("$n", "$bigint");
-}
-
-testDouble(double input, [double expectation]) {
-  var bigint = new BigInt.from(input);
-  Expect.equals(expectation ?? input, bigint.toDouble());
-}
diff --git a/tests/corelib_2/bigint_js_test.dart b/tests/corelib_2/bigint_js_test.dart
deleted file mode 100644
index 6a85df5b6c0..00000000000
--- a/tests/corelib_2/bigint_js_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing Bigints with and without intrinsics.
-// VMOptions=--intrinsify --no-enable-asserts
-// VMOptions=--intrinsify --enable-asserts
-// VMOptions=--no-intrinsify --enable-asserts
-// VMOptions=--optimization-counter-threshold=20 --no-background-compilation
-
-// Test for JavaScript specific BigInt behaviour. Any JavaScript number (double)
-// that is an integral value is a Dart 'int' value, so any BigInt that has a
-// value that is exactly a double integral value should return `true` for
-// [BigInt.isValidInt].
-
-import "package:expect/expect.dart";
-
-int intPow(int a, int p) {
-  int result = 1;
-  for (int i = 0; i < p; i++) result *= a;
-  return result;
-}
-
-int pow2_53 = intPow(2, 53);
-
-test(int n1, int n2, int shift, [bool expectedIsValidInt = true]) {
-  var n = (new BigInt.from(n1) * new BigInt.from(n2)) << shift;
-  Expect.equals(expectedIsValidInt, n.isValidInt, '${n}.isValidInt');
-  if (n >= new BigInt.from(pow2_53)) {
-    var nplus1 = n + BigInt.one;
-    Expect.isFalse(nplus1.isValidInt, '${nplus1}.isValidInt');
-  }
-}
-
-main() {
-  test(13, 19, 1);
-  test(19997, 19993, 100);
-  test(19997, pow2_53 ~/ 19997, 0);
-  test(19997, pow2_53 ~/ 19997, 1);
-  test(19997, pow2_53 ~/ 19997, 100);
-  test(1, 1, 100);
-  test(1, 1, 10000, false);
-
-  // More than 53 bits in product,
-  test(pow2_53 ~/ 3, pow2_53 ~/ 5, 0, false);
-}
diff --git a/tests/corelib_2/bigint_mod_test.dart b/tests/corelib_2/bigint_mod_test.dart
deleted file mode 100644
index 56e0aa3eefa..00000000000
--- a/tests/corelib_2/bigint_mod_test.dart
+++ /dev/null
@@ -1,114 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing Bigints with and without intrinsics.
-// VMOptions=--intrinsify --no-enable-asserts
-// VMOptions=--intrinsify --enable-asserts
-// VMOptions=--no-intrinsify --enable-asserts
-// VMOptions=--no-intrinsify --no-enable-asserts
-
-import "package:expect/expect.dart";
-
-expectRemainder(aString, bString, expectedString) {
-  BigInt a = BigInt.parse(aString, radix: 16);
-  BigInt b = BigInt.parse(bString, radix: 16);
-  BigInt expected = BigInt.parse(expectedString, radix: 16);
-  BigInt actual = a % b;
-  String actualString = actual.toRadixString(16);
-  print("$aString % $bString");
-  print(" = $actualString (expected $expectedString)");
-  Expect.equals(expected, actual);
-}
-
-main() {
-  expectRemainder(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "3b04b6a8ac2e74f9845c182e303993e0efa8184");
-  expectRemainder(
-      "d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "d4cba13fac3ee22b996ff6856c27c1f6d88aef0e");
-  expectRemainder(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "a13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "1fdbde7efec117ff81df42cc8367092a65e4");
-  expectRemainder(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "3fac3ee22b996ff6856c27c1f6d88aef0e",
-      "359d4ac0e4440150310acc0e96fdb973c");
-  expectRemainder("d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "ac3ee22b996ff6856c27c1f6d88aef0e", "84c9b202365aef6ea4b442ff6897d72e");
-  expectRemainder("d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "3ee22b996ff6856c27c1f6d88aef0e", "2c66626e41743605244c026579e4f0");
-  expectRemainder("d87becaa3701c97b31b5b8084f2b5b34e7857092", "1", "0");
-
-  expectRemainder(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "d11b55d5217bfadc012a3502892428b8c9906d8a");
-  expectRemainder(
-      "-d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "3b04b6a8ac2e74f9845c182e303993e0efa8184");
-  expectRemainder(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "a13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "8163cdbfe36a817074a6295b3e8fcf60892a");
-  expectRemainder(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "3fac3ee22b996ff6856c27c1f6d88aef0e",
-      "3c526a361d552fe1825b7b010d68af57d2");
-  expectRemainder("-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "ac3ee22b996ff6856c27c1f6d88aef0e", "2775302963150716c7737ef76ff317e0");
-  expectRemainder("-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "3ee22b996ff6856c27c1f6d88aef0e", "127bc92b2e824f670375f473110a1e");
-  expectRemainder("-d87becaa3701c97b31b5b8084f2b5b34e7857092", "1", "0");
-
-  expectRemainder(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "3b04b6a8ac2e74f9845c182e303993e0efa8184");
-  expectRemainder(
-      "d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "d4cba13fac3ee22b996ff6856c27c1f6d88aef0e");
-  expectRemainder(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-a13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "1fdbde7efec117ff81df42cc8367092a65e4");
-  expectRemainder(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-3fac3ee22b996ff6856c27c1f6d88aef0e",
-      "359d4ac0e4440150310acc0e96fdb973c");
-  expectRemainder("d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-ac3ee22b996ff6856c27c1f6d88aef0e", "84c9b202365aef6ea4b442ff6897d72e");
-  expectRemainder("d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-3ee22b996ff6856c27c1f6d88aef0e", "2c66626e41743605244c026579e4f0");
-  expectRemainder("d87becaa3701c97b31b5b8084f2b5b34e7857092", "-1", "0");
-
-  expectRemainder(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "d11b55d5217bfadc012a3502892428b8c9906d8a");
-  expectRemainder(
-      "-d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "3b04b6a8ac2e74f9845c182e303993e0efa8184");
-  expectRemainder(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-a13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "8163cdbfe36a817074a6295b3e8fcf60892a");
-  expectRemainder(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-3fac3ee22b996ff6856c27c1f6d88aef0e",
-      "3c526a361d552fe1825b7b010d68af57d2");
-  expectRemainder("-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-ac3ee22b996ff6856c27c1f6d88aef0e", "2775302963150716c7737ef76ff317e0");
-  expectRemainder("-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-3ee22b996ff6856c27c1f6d88aef0e", "127bc92b2e824f670375f473110a1e");
-  expectRemainder("-d87becaa3701c97b31b5b8084f2b5b34e7857092", "-1", "0");
-}
diff --git a/tests/corelib_2/bigint_mul_test.dart b/tests/corelib_2/bigint_mul_test.dart
deleted file mode 100644
index 7fb5f0708b1..00000000000
--- a/tests/corelib_2/bigint_mul_test.dart
+++ /dev/null
@@ -1,138 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing Bigints with and without intrinsics.
-// VMOptions=--intrinsify --no-enable-asserts
-// VMOptions=--intrinsify --enable-asserts
-// VMOptions=--no-intrinsify --enable-asserts
-// VMOptions=--no-intrinsify --no-enable-asserts
-
-import "package:expect/expect.dart";
-
-expectProduct(aString, bString, expectedString) {
-  BigInt a = BigInt.parse(aString, radix: 16);
-  BigInt b = BigInt.parse(bString, radix: 16);
-  BigInt expected = BigInt.parse(expectedString, radix: 16);
-  BigInt actual = a * b;
-  String actualString = actual.toRadixString(16);
-  print("$aString * $bString");
-  print(" = $actualString (expected $expectedString)");
-  Expect.equals(expected, actual);
-}
-
-main() {
-  expectProduct(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "b3f2d29d6885d40866b040adf8f545352154823b15fed8aa8c35c5c223fcf4bf6eb904401c1875fc");
-  expectProduct(
-      "d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "b3f2d29d6885d40866b040adf8f545352154823b15fed8aa8c35c5c223fcf4bf6eb904401c1875fc");
-  expectProduct(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "a13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "885bc7febac39cd5592e28ce964bfea66a31ea38d8aa8c35c5c223fcf4bf6eb904401c1875fc");
-  expectProduct(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "3fac3ee22b996ff6856c27c1f6d88aef0e",
-      "35d827ae2b7d1edeeae0115c81ba4a2496fe6d06aa8c35c5c223fcf4bf6eb904401c1875fc");
-  expectProduct(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "ac3ee22b996ff6856c27c1f6d88aef0e",
-      "91a87047f3ae4999a45912763e9eb292049652bc8c35c5c223fcf4bf6eb904401c1875fc");
-  expectProduct(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "3ee22b996ff6856c27c1f6d88aef0e",
-      "352d4596b9163adef2fad0a96d914a7908ab1a7435c5c223fcf4bf6eb904401c1875fc");
-  expectProduct("d87becaa3701c97b31b5b8084f2b5b34e7857092", "1",
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092");
-  expectProduct("d87becaa3701c97b31b5b8084f2b5b34e7857092", "0", "0");
-
-  expectProduct(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-b3f2d29d6885d40866b040adf8f545352154823b15fed8aa8c35c5c223fcf4bf6eb904401c1875fc");
-  expectProduct(
-      "-d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-b3f2d29d6885d40866b040adf8f545352154823b15fed8aa8c35c5c223fcf4bf6eb904401c1875fc");
-  expectProduct(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "a13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-885bc7febac39cd5592e28ce964bfea66a31ea38d8aa8c35c5c223fcf4bf6eb904401c1875fc");
-  expectProduct(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "3fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-35d827ae2b7d1edeeae0115c81ba4a2496fe6d06aa8c35c5c223fcf4bf6eb904401c1875fc");
-  expectProduct(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "ac3ee22b996ff6856c27c1f6d88aef0e",
-      "-91a87047f3ae4999a45912763e9eb292049652bc8c35c5c223fcf4bf6eb904401c1875fc");
-  expectProduct(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "3ee22b996ff6856c27c1f6d88aef0e",
-      "-352d4596b9163adef2fad0a96d914a7908ab1a7435c5c223fcf4bf6eb904401c1875fc");
-  expectProduct("-d87becaa3701c97b31b5b8084f2b5b34e7857092", "1",
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092");
-  expectProduct("-d87becaa3701c97b31b5b8084f2b5b34e7857092", "0", "0");
-
-  expectProduct(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-b3f2d29d6885d40866b040adf8f545352154823b15fed8aa8c35c5c223fcf4bf6eb904401c1875fc");
-  expectProduct(
-      "d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-b3f2d29d6885d40866b040adf8f545352154823b15fed8aa8c35c5c223fcf4bf6eb904401c1875fc");
-  expectProduct(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-a13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-885bc7febac39cd5592e28ce964bfea66a31ea38d8aa8c35c5c223fcf4bf6eb904401c1875fc");
-  expectProduct(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-3fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-35d827ae2b7d1edeeae0115c81ba4a2496fe6d06aa8c35c5c223fcf4bf6eb904401c1875fc");
-  expectProduct(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-ac3ee22b996ff6856c27c1f6d88aef0e",
-      "-91a87047f3ae4999a45912763e9eb292049652bc8c35c5c223fcf4bf6eb904401c1875fc");
-  expectProduct(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-3ee22b996ff6856c27c1f6d88aef0e",
-      "-352d4596b9163adef2fad0a96d914a7908ab1a7435c5c223fcf4bf6eb904401c1875fc");
-  expectProduct("d87becaa3701c97b31b5b8084f2b5b34e7857092", "-1",
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092");
-  expectProduct("d87becaa3701c97b31b5b8084f2b5b34e7857092", "-0", "0");
-
-  expectProduct(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "b3f2d29d6885d40866b040adf8f545352154823b15fed8aa8c35c5c223fcf4bf6eb904401c1875fc");
-  expectProduct(
-      "-d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "b3f2d29d6885d40866b040adf8f545352154823b15fed8aa8c35c5c223fcf4bf6eb904401c1875fc");
-  expectProduct(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-a13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "885bc7febac39cd5592e28ce964bfea66a31ea38d8aa8c35c5c223fcf4bf6eb904401c1875fc");
-  expectProduct(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-3fac3ee22b996ff6856c27c1f6d88aef0e",
-      "35d827ae2b7d1edeeae0115c81ba4a2496fe6d06aa8c35c5c223fcf4bf6eb904401c1875fc");
-  expectProduct(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-ac3ee22b996ff6856c27c1f6d88aef0e",
-      "91a87047f3ae4999a45912763e9eb292049652bc8c35c5c223fcf4bf6eb904401c1875fc");
-  expectProduct(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-3ee22b996ff6856c27c1f6d88aef0e",
-      "352d4596b9163adef2fad0a96d914a7908ab1a7435c5c223fcf4bf6eb904401c1875fc");
-  expectProduct("-d87becaa3701c97b31b5b8084f2b5b34e7857092", "-1",
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092");
-  expectProduct("-d87becaa3701c97b31b5b8084f2b5b34e7857092", "-0", "0");
-}
diff --git a/tests/corelib_2/bigint_parse_radix_test.dart b/tests/corelib_2/bigint_parse_radix_test.dart
deleted file mode 100644
index ed2a8b33539..00000000000
--- a/tests/corelib_2/bigint_parse_radix_test.dart
+++ /dev/null
@@ -1,142 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing Bigints with and without intrinsics.
-// VMOptions=--intrinsify --no-enable-asserts
-// VMOptions=--intrinsify --enable-asserts
-// VMOptions=--no-intrinsify --enable-asserts
-// VMOptions=--optimization-counter-threshold=20 --no-background-compilation
-
-import "package:expect/expect.dart";
-
-import 'dart:math' show pow;
-
-void testParseRadix() {
-  bool checkedMode = false;
-  assert((checkedMode = true));
-  const String oneByteWhiteSpace = "\x09\x0a\x0b\x0c\x0d\x20"
-      // "\x85" // Might make troubles on some systems. Was marked as OK test.
-      "\xa0";
-  const String whiteSpace = "$oneByteWhiteSpace\u1680"
-      "\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a"
-      "\u2028\u2029\u202f\u205f\u3000\ufeff";
-
-  var digits = "0123456789abcdefghijklmnopqrstuvwxyz";
-  var zeros = "0" * 64;
-
-  for (int i = 0; i < whiteSpace.length; i++) {
-    var ws = whiteSpace[i];
-    Expect.equals(BigInt.zero, BigInt.parse("${ws}0${ws}", radix: 2));
-  }
-
-  void testParse(BigInt result, String radixString, int radix) {
-    var m = "$radixString/$radix->$result";
-    Expect.equals(
-        result, BigInt.parse(radixString.toLowerCase(), radix: radix), m);
-    Expect.equals(
-        result, BigInt.parse(radixString.toUpperCase(), radix: radix), m);
-    Expect.equals(result, BigInt.parse(" $radixString", radix: radix), m);
-    Expect.equals(result, BigInt.parse("$radixString ", radix: radix), m);
-    Expect.equals(result, BigInt.parse(" $radixString ", radix: radix), m);
-    Expect.equals(result, BigInt.parse("+$radixString", radix: radix), m);
-    Expect.equals(result, BigInt.parse(" +$radixString", radix: radix), m);
-    Expect.equals(result, BigInt.parse("+$radixString ", radix: radix), m);
-    Expect.equals(result, BigInt.parse(" +$radixString ", radix: radix), m);
-    Expect.equals(-result, BigInt.parse("-$radixString", radix: radix), m);
-    Expect.equals(-result, BigInt.parse(" -$radixString", radix: radix), m);
-    Expect.equals(-result, BigInt.parse("-$radixString ", radix: radix), m);
-    Expect.equals(-result, BigInt.parse(" -$radixString ", radix: radix), m);
-    Expect.equals(
-        result,
-        BigInt.parse("$oneByteWhiteSpace$radixString$oneByteWhiteSpace",
-            radix: radix),
-        m);
-    Expect.equals(
-        -result,
-        BigInt.parse("$oneByteWhiteSpace-$radixString$oneByteWhiteSpace",
-            radix: radix),
-        m);
-    Expect.equals(result,
-        BigInt.parse("$whiteSpace$radixString$whiteSpace", radix: radix), m);
-    Expect.equals(-result,
-        BigInt.parse("$whiteSpace-$radixString$whiteSpace", radix: radix), m);
-
-    Expect.equals(result, BigInt.parse("$zeros$radixString", radix: radix), m);
-    Expect.equals(result, BigInt.parse("+$zeros$radixString", radix: radix), m);
-    Expect.equals(
-        -result, BigInt.parse("-$zeros$radixString", radix: radix), m);
-  }
-
-  for (int r = 2; r <= 36; r++) {
-    for (var i = BigInt.zero; i <= new BigInt.from(r * r); i += BigInt.one) {
-      String radixString = i.toRadixString(r);
-      testParse(i, radixString, r);
-    }
-  }
-
-  for (int i = 2; i <= 36; i++) {
-    var digit = digits[i - 1];
-    testParse(new BigInt.from(i).pow(64) - BigInt.one, digit * 64, i);
-    testParse(BigInt.zero, zeros, i);
-  }
-
-  // Allow both upper- and lower-case letters.
-  Expect.equals(new BigInt.from(0xABCD), BigInt.parse("ABCD", radix: 16));
-  Expect.equals(new BigInt.from(0xABCD), BigInt.parse("abcd", radix: 16));
-  Expect.equals(new BigInt.from(15628859), BigInt.parse("09azAZ", radix: 36));
-
-  Expect.equals(
-      (new BigInt.from(0x12345678) << 96) +
-          (new BigInt.from(0x12345678) << 64) +
-          (new BigInt.from(0x12345678) << 32) +
-          new BigInt.from(0x12345678),
-      BigInt.parse("0x12345678123456781234567812345678"));
-
-  // Allow whitespace before and after the number.
-  Expect.equals(BigInt.one, BigInt.parse(" 1", radix: 2));
-  Expect.equals(BigInt.one, BigInt.parse("1 ", radix: 2));
-  Expect.equals(BigInt.one, BigInt.parse(" 1 ", radix: 2));
-  Expect.equals(BigInt.one, BigInt.parse("\n1", radix: 2));
-  Expect.equals(BigInt.one, BigInt.parse("1\n", radix: 2));
-  Expect.equals(BigInt.one, BigInt.parse("\n1\n", radix: 2));
-  Expect.equals(BigInt.one, BigInt.parse("+1", radix: 2));
-
-  void testFails(String source, int radix) {
-    Expect.throws(() {
-      BigInt.parse(source, radix: radix);
-    }, (e) => e is FormatException, "$source/$radix");
-  }
-
-  for (int i = 2; i < 36; i++) {
-    var char = i.toRadixString(36);
-    testFails(char.toLowerCase(), i);
-    testFails(char.toUpperCase(), i);
-  }
-  testFails("", 2);
-  testFails("+ 1", 2); // No space between sign and digits.
-  testFails("- 1", 2); // No space between sign and digits.
-  testFails("0x", null);
-  for (int i = 2; i <= 33; i++) {
-    // No 0x specially allowed.
-    // At radix 34 and above, "x" is a valid digit.
-    testFails("0x10", i);
-  }
-
-  testBadArguments(String source, int radix) {
-    // If the types match, it should be an ArgumentError of some sort.
-    Expect.throws(
-        () => BigInt.parse(source, radix: radix), (e) => e is ArgumentError);
-  }
-
-  testBadArguments("0", -1);
-  testBadArguments("0", 0);
-  testBadArguments("0", 1);
-  testBadArguments("0", 37);
-}
-
-main() {
-  testParseRadix();
-}
diff --git a/tests/corelib_2/bigint_sll_test.dart b/tests/corelib_2/bigint_sll_test.dart
deleted file mode 100644
index 9f00fd4915a..00000000000
--- a/tests/corelib_2/bigint_sll_test.dart
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing Bigints with and without intrinsics.
-// VMOptions=--intrinsify --no-enable-asserts
-// VMOptions=--intrinsify --enable-asserts
-// VMOptions=--no-intrinsify --enable-asserts
-// VMOptions=--no-intrinsify --no-enable-asserts
-
-import "package:expect/expect.dart";
-
-expectShifted(aString, n, expectedString) {
-  BigInt a = BigInt.parse(aString, radix: 16);
-  BigInt expected = BigInt.parse(expectedString, radix: 16);
-  BigInt actual = a << n;
-  String actualString = actual.toRadixString(16);
-  print("$aString << $n");
-  print(" = $actualString (expected $expectedString)");
-  Expect.equals(expected, actual);
-}
-
-main() {
-  expectShifted("d87becaa3701c97b31b5b8084f2b5b34e7857092", 0,
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092");
-  expectShifted("d87becaa3701c97b31b5b8084f2b5b34e7857092", 1,
-      "1b0f7d9546e0392f6636b70109e56b669cf0ae124");
-  expectShifted("d87becaa3701c97b31b5b8084f2b5b34e7857092", 2,
-      "361efb2a8dc0725ecc6d6e0213cad6cd39e15c248");
-  expectShifted("d87becaa3701c97b31b5b8084f2b5b34e7857092", 31,
-      "6c3df6551b80e4bd98dadc042795ad9a73c2b84900000000");
-  expectShifted("d87becaa3701c97b31b5b8084f2b5b34e7857092", 32,
-      "d87becaa3701c97b31b5b8084f2b5b34e785709200000000");
-  expectShifted("d87becaa3701c97b31b5b8084f2b5b34e7857092", 33,
-      "1b0f7d9546e0392f6636b70109e56b669cf0ae12400000000");
-  expectShifted("d87becaa3701c97b31b5b8084f2b5b34e7857092", 63,
-      "6c3df6551b80e4bd98dadc042795ad9a73c2b8490000000000000000");
-  expectShifted("d87becaa3701c97b31b5b8084f2b5b34e7857092", 64,
-      "d87becaa3701c97b31b5b8084f2b5b34e78570920000000000000000");
-  expectShifted("d87becaa3701c97b31b5b8084f2b5b34e7857092", 65,
-      "1b0f7d9546e0392f6636b70109e56b669cf0ae1240000000000000000");
-  expectShifted("d87becaa3701c97b31b5b8084f2b5b34e7857092", 127,
-      "6c3df6551b80e4bd98dadc042795ad9a73c2b84900000000000000000000000000000000");
-  expectShifted("d87becaa3701c97b31b5b8084f2b5b34e7857092", 128,
-      "d87becaa3701c97b31b5b8084f2b5b34e785709200000000000000000000000000000000");
-  expectShifted("d87becaa3701c97b31b5b8084f2b5b34e7857092", 129,
-      "1b0f7d9546e0392f6636b70109e56b669cf0ae12400000000000000000000000000000000");
-
-  expectShifted("-d87becaa3701c97b31b5b8084f2b5b34e7857092", 0,
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092");
-  expectShifted("-d87becaa3701c97b31b5b8084f2b5b34e7857092", 1,
-      "-1b0f7d9546e0392f6636b70109e56b669cf0ae124");
-  expectShifted("-d87becaa3701c97b31b5b8084f2b5b34e7857092", 2,
-      "-361efb2a8dc0725ecc6d6e0213cad6cd39e15c248");
-  expectShifted("-d87becaa3701c97b31b5b8084f2b5b34e7857092", 31,
-      "-6c3df6551b80e4bd98dadc042795ad9a73c2b84900000000");
-  expectShifted("-d87becaa3701c97b31b5b8084f2b5b34e7857092", 32,
-      "-d87becaa3701c97b31b5b8084f2b5b34e785709200000000");
-  expectShifted("-d87becaa3701c97b31b5b8084f2b5b34e7857092", 33,
-      "-1b0f7d9546e0392f6636b70109e56b669cf0ae12400000000");
-  expectShifted("-d87becaa3701c97b31b5b8084f2b5b34e7857092", 63,
-      "-6c3df6551b80e4bd98dadc042795ad9a73c2b8490000000000000000");
-  expectShifted("-d87becaa3701c97b31b5b8084f2b5b34e7857092", 64,
-      "-d87becaa3701c97b31b5b8084f2b5b34e78570920000000000000000");
-  expectShifted("-d87becaa3701c97b31b5b8084f2b5b34e7857092", 65,
-      "-1b0f7d9546e0392f6636b70109e56b669cf0ae1240000000000000000");
-  expectShifted("-d87becaa3701c97b31b5b8084f2b5b34e7857092", 127,
-      "-6c3df6551b80e4bd98dadc042795ad9a73c2b84900000000000000000000000000000000");
-  expectShifted("-d87becaa3701c97b31b5b8084f2b5b34e7857092", 128,
-      "-d87becaa3701c97b31b5b8084f2b5b34e785709200000000000000000000000000000000");
-  expectShifted("-d87becaa3701c97b31b5b8084f2b5b34e7857092", 129,
-      "-1b0f7d9546e0392f6636b70109e56b669cf0ae12400000000000000000000000000000000");
-}
diff --git a/tests/corelib_2/bigint_sra_test.dart b/tests/corelib_2/bigint_sra_test.dart
deleted file mode 100644
index e4d8966fcf0..00000000000
--- a/tests/corelib_2/bigint_sra_test.dart
+++ /dev/null
@@ -1,69 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing Bigints with and without intrinsics.
-// VMOptions=--intrinsify --no-enable-asserts
-// VMOptions=--intrinsify --enable-asserts
-// VMOptions=--no-intrinsify --enable-asserts
-// VMOptions=--no-intrinsify --no-enable-asserts
-
-import "package:expect/expect.dart";
-
-expectShifted(aString, n, expectedString) {
-  BigInt a = BigInt.parse(aString, radix: 16);
-  BigInt expected = BigInt.parse(expectedString, radix: 16);
-  BigInt actual = a >> n;
-  String actualString = actual.toRadixString(16);
-  print("$aString >> $n");
-  print(" = $actualString (expected $expectedString)");
-  Expect.equals(expected, actual);
-}
-
-main() {
-  expectShifted("d87becaa3701c97b31b5b8084f2b5b34e7857092", 0,
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092");
-  expectShifted("d87becaa3701c97b31b5b8084f2b5b34e7857092", 1,
-      "6c3df6551b80e4bd98dadc042795ad9a73c2b849");
-  expectShifted("d87becaa3701c97b31b5b8084f2b5b34e7857092", 2,
-      "361efb2a8dc0725ecc6d6e0213cad6cd39e15c24");
-  expectShifted("d87becaa3701c97b31b5b8084f2b5b34e7857092", 31,
-      "1b0f7d9546e0392f6636b70109e56b669");
-  expectShifted("d87becaa3701c97b31b5b8084f2b5b34e7857092", 32,
-      "d87becaa3701c97b31b5b8084f2b5b34");
-  expectShifted("d87becaa3701c97b31b5b8084f2b5b34e7857092", 33,
-      "6c3df6551b80e4bd98dadc042795ad9a");
-  expectShifted("d87becaa3701c97b31b5b8084f2b5b34e7857092", 63,
-      "1b0f7d9546e0392f6636b7010");
-  expectShifted("d87becaa3701c97b31b5b8084f2b5b34e7857092", 64,
-      "d87becaa3701c97b31b5b808");
-  expectShifted("d87becaa3701c97b31b5b8084f2b5b34e7857092", 65,
-      "6c3df6551b80e4bd98dadc04");
-  expectShifted("d87becaa3701c97b31b5b8084f2b5b34e7857092", 127, "1b0f7d954");
-  expectShifted("d87becaa3701c97b31b5b8084f2b5b34e7857092", 128, "d87becaa");
-  expectShifted("d87becaa3701c97b31b5b8084f2b5b34e7857092", 129, "6c3df655");
-
-  expectShifted("-d87becaa3701c97b31b5b8084f2b5b34e7857092", 0,
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092");
-  expectShifted("-d87becaa3701c97b31b5b8084f2b5b34e7857092", 1,
-      "-6c3df6551b80e4bd98dadc042795ad9a73c2b849");
-  expectShifted("-d87becaa3701c97b31b5b8084f2b5b34e7857092", 2,
-      "-361efb2a8dc0725ecc6d6e0213cad6cd39e15c25");
-  expectShifted("-d87becaa3701c97b31b5b8084f2b5b34e7857092", 31,
-      "-1b0f7d9546e0392f6636b70109e56b66a");
-  expectShifted("-d87becaa3701c97b31b5b8084f2b5b34e7857092", 32,
-      "-d87becaa3701c97b31b5b8084f2b5b35");
-  expectShifted("-d87becaa3701c97b31b5b8084f2b5b34e7857092", 33,
-      "-6c3df6551b80e4bd98dadc042795ad9b");
-  expectShifted("-d87becaa3701c97b31b5b8084f2b5b34e7857092", 63,
-      "-1b0f7d9546e0392f6636b7011");
-  expectShifted("-d87becaa3701c97b31b5b8084f2b5b34e7857092", 64,
-      "-d87becaa3701c97b31b5b809");
-  expectShifted("-d87becaa3701c97b31b5b8084f2b5b34e7857092", 65,
-      "-6c3df6551b80e4bd98dadc05");
-  expectShifted("-d87becaa3701c97b31b5b8084f2b5b34e7857092", 127, "-1b0f7d955");
-  expectShifted("-d87becaa3701c97b31b5b8084f2b5b34e7857092", 128, "-d87becab");
-  expectShifted("-d87becaa3701c97b31b5b8084f2b5b34e7857092", 129, "-6c3df656");
-}
diff --git a/tests/corelib_2/bigint_sub_test.dart b/tests/corelib_2/bigint_sub_test.dart
deleted file mode 100644
index ff7555d71ab..00000000000
--- a/tests/corelib_2/bigint_sub_test.dart
+++ /dev/null
@@ -1,142 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing Bigints with and without intrinsics.
-// VMOptions=--intrinsify --no-enable-asserts
-// VMOptions=--intrinsify --enable-asserts
-// VMOptions=--no-intrinsify --enable-asserts
-// VMOptions=--no-intrinsify --no-enable-asserts
-
-import "package:expect/expect.dart";
-
-expectDifference(aString, bString, expectedString) {
-  BigInt a = BigInt.parse(aString, radix: 16);
-  BigInt b = BigInt.parse(bString, radix: 16);
-  BigInt expected = BigInt.parse(expectedString, radix: 16);
-  BigInt actual = a - b;
-  String actualString = actual.toRadixString(16);
-  print("$aString - $bString");
-  print(" = $actualString (expected $expectedString)");
-  Expect.equals(expected, actual);
-}
-
-main() {
-  expectDifference(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "3b04b6a8ac2e74f9845c182e303993e0efa8184");
-  expectDifference(
-      "d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-3b04b6a8ac2e74f9845c182e303993e0efa8184");
-  expectDifference(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "a13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "d87b4b6a8ac2e74f9845c182e303993e0efa8184");
-  expectDifference(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "3fac3ee22b996ff6856c27c1f6d88aef0e",
-      "d87bec6a8ac2e74f9845c182e303993e0efa8184");
-  expectDifference(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "ac3ee22b996ff6856c27c1f6d88aef0e",
-      "d87beca98ac2e74f9845c182e303993e0efa8184");
-  expectDifference(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "3ee22b996ff6856c27c1f6d88aef0e",
-      "d87becaa36c2e74f9845c182e303993e0efa8184");
-  expectDifference("d87becaa3701c97b31b5b8084f2b5b34e7857092", "1",
-      "d87becaa3701c97b31b5b8084f2b5b34e7857091");
-  expectDifference("d87becaa3701c97b31b5b8084f2b5b34e7857092", "0",
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092");
-
-  expectDifference(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-1ad478de9e340aba6cb25ae8dbb531d2bc0105fa0");
-  expectDifference(
-      "-d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-1ad478de9e340aba6cb25ae8dbb531d2bc0105fa0");
-  expectDifference(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "a13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-d87c8de9e340aba6cb25ae8dbb531d2bc0105fa0");
-  expectDifference(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "3fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-d87bece9e340aba6cb25ae8dbb531d2bc0105fa0");
-  expectDifference(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "ac3ee22b996ff6856c27c1f6d88aef0e",
-      "-d87becaae340aba6cb25ae8dbb531d2bc0105fa0");
-  expectDifference(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "3ee22b996ff6856c27c1f6d88aef0e",
-      "-d87becaa3740aba6cb25ae8dbb531d2bc0105fa0");
-  expectDifference("-d87becaa3701c97b31b5b8084f2b5b34e7857092", "1",
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857093");
-  expectDifference("-d87becaa3701c97b31b5b8084f2b5b34e7857092", "0",
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092");
-
-  expectDifference(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "1ad478de9e340aba6cb25ae8dbb531d2bc0105fa0");
-  expectDifference(
-      "d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "1ad478de9e340aba6cb25ae8dbb531d2bc0105fa0");
-  expectDifference(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-a13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "d87c8de9e340aba6cb25ae8dbb531d2bc0105fa0");
-  expectDifference(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-3fac3ee22b996ff6856c27c1f6d88aef0e",
-      "d87bece9e340aba6cb25ae8dbb531d2bc0105fa0");
-  expectDifference(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-ac3ee22b996ff6856c27c1f6d88aef0e",
-      "d87becaae340aba6cb25ae8dbb531d2bc0105fa0");
-  expectDifference(
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-3ee22b996ff6856c27c1f6d88aef0e",
-      "d87becaa3740aba6cb25ae8dbb531d2bc0105fa0");
-  expectDifference("d87becaa3701c97b31b5b8084f2b5b34e7857092", "-1",
-      "d87becaa3701c97b31b5b8084f2b5b34e7857093");
-  expectDifference("d87becaa3701c97b31b5b8084f2b5b34e7857092", "-0",
-      "d87becaa3701c97b31b5b8084f2b5b34e7857092");
-
-  expectDifference(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-3b04b6a8ac2e74f9845c182e303993e0efa8184");
-  expectDifference(
-      "-d4cba13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "3b04b6a8ac2e74f9845c182e303993e0efa8184");
-  expectDifference(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-a13fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-d87b4b6a8ac2e74f9845c182e303993e0efa8184");
-  expectDifference(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-3fac3ee22b996ff6856c27c1f6d88aef0e",
-      "-d87bec6a8ac2e74f9845c182e303993e0efa8184");
-  expectDifference(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-ac3ee22b996ff6856c27c1f6d88aef0e",
-      "-d87beca98ac2e74f9845c182e303993e0efa8184");
-  expectDifference(
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092",
-      "-3ee22b996ff6856c27c1f6d88aef0e",
-      "-d87becaa36c2e74f9845c182e303993e0efa8184");
-  expectDifference("-d87becaa3701c97b31b5b8084f2b5b34e7857092", "-1",
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857091");
-  expectDifference("-d87becaa3701c97b31b5b8084f2b5b34e7857092", "-0",
-      "-d87becaa3701c97b31b5b8084f2b5b34e7857092");
-}
diff --git a/tests/corelib_2/bigint_test.dart b/tests/corelib_2/bigint_test.dart
deleted file mode 100644
index b2d10d64f30..00000000000
--- a/tests/corelib_2/bigint_test.dart
+++ /dev/null
@@ -1,1099 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing Bigints with and without intrinsics.
-// VMOptions=--intrinsify --no-enable-asserts
-// VMOptions=--intrinsify --enable-asserts
-// VMOptions=--no-intrinsify --enable-asserts
-// VMOptions=--optimization-counter-threshold=20 --no-background-compilation
-
-import "package:expect/expect.dart";
-
-import 'dart:math' show pow;
-
-var smallNumber = new BigInt.from(1234567890); //   is 31-bit integer.
-var mediumNumber = new BigInt.from(1234567890123456); // is 53-bit integer
-var bigNumber = BigInt.parse("590295810358705600000"); // > 64-bit integer
-
-testModPow() {
-  void test(BigInt x, BigInt e, BigInt m, BigInt expectedResult) {
-    // Check that expected result is correct, using an unoptimized version.
-    assert(() {
-      slowModPow(BigInt x, BigInt e, BigInt m) {
-        var r = BigInt.one;
-        while (e > BigInt.zero) {
-          if (e.isOdd) r = (r * x) % m;
-          e >>= 1;
-          x = (x * x) % m;
-        }
-        return r;
-      }
-
-      return slowModPow(x, e, m) == expectedResult;
-    }());
-    var result = x.modPow(e, m);
-    Expect.equals(expectedResult, result, "$x.modPow($e, $m)");
-  }
-
-  test(new BigInt.from(10), new BigInt.from(20), BigInt.one, BigInt.zero);
-  test(new BigInt.from(1234567890), new BigInt.from(1000000001),
-      new BigInt.from(19), new BigInt.from(11));
-  test(new BigInt.from(1234567890), new BigInt.from(19),
-      new BigInt.from(1000000001), new BigInt.from(122998977));
-  test(new BigInt.from(19), new BigInt.from(1234567890),
-      new BigInt.from(1000000001), new BigInt.from(619059596));
-  test(new BigInt.from(19), new BigInt.from(1000000001),
-      new BigInt.from(1234567890), new BigInt.from(84910879));
-  test(new BigInt.from(1000000001), new BigInt.from(19),
-      new BigInt.from(1234567890), new BigInt.from(872984351));
-  test(new BigInt.from(1000000001), new BigInt.from(1234567890),
-      new BigInt.from(19), BigInt.zero);
-  test(BigInt.parse("12345678901234567890"),
-      BigInt.parse("10000000000000000001"), new BigInt.from(19), BigInt.two);
-  test(
-      BigInt.parse("12345678901234567890"),
-      new BigInt.from(19),
-      BigInt.parse("10000000000000000001"),
-      BigInt.parse("3239137215315834625"));
-  test(
-      new BigInt.from(19),
-      BigInt.parse("12345678901234567890"),
-      BigInt.parse("10000000000000000001"),
-      BigInt.parse("4544207837373941034"));
-  test(
-      new BigInt.from(19),
-      BigInt.parse("10000000000000000001"),
-      BigInt.parse("12345678901234567890"),
-      BigInt.parse("11135411705397624859"));
-  test(
-      BigInt.parse("10000000000000000001"),
-      new BigInt.from(19),
-      BigInt.parse("12345678901234567890"),
-      BigInt.parse("2034013733189773841"));
-  test(BigInt.parse("10000000000000000001"),
-      BigInt.parse("12345678901234567890"), new BigInt.from(19), BigInt.one);
-  test(
-      BigInt.parse("12345678901234567890"),
-      new BigInt.from(19),
-      BigInt.parse("10000000000000000001"),
-      BigInt.parse("3239137215315834625"));
-  test(BigInt.parse("12345678901234567890"),
-      BigInt.parse("10000000000000000001"), new BigInt.from(19), BigInt.two);
-  test(
-      BigInt.parse("123456789012345678901234567890"),
-      BigInt.parse("123456789012345678901234567891"),
-      BigInt.parse("123456789012345678901234567899"),
-      BigInt.parse("116401406051033429924651549616"));
-  test(
-      BigInt.parse("123456789012345678901234567890"),
-      BigInt.parse("123456789012345678901234567899"),
-      BigInt.parse("123456789012345678901234567891"),
-      BigInt.parse("123456789012345678901234567890"));
-  test(
-      BigInt.parse("123456789012345678901234567899"),
-      BigInt.parse("123456789012345678901234567890"),
-      BigInt.parse("123456789012345678901234567891"),
-      BigInt.parse("35088523091000351053091545070"));
-  test(
-      BigInt.parse("123456789012345678901234567899"),
-      BigInt.parse("123456789012345678901234567891"),
-      BigInt.parse("123456789012345678901234567890"),
-      BigInt.parse("18310047270234132455316941949"));
-  test(
-      BigInt.parse("123456789012345678901234567891"),
-      BigInt.parse("123456789012345678901234567899"),
-      BigInt.parse("123456789012345678901234567890"),
-      BigInt.one);
-  test(
-      BigInt.parse("123456789012345678901234567891"),
-      BigInt.parse("123456789012345678901234567890"),
-      BigInt.parse("123456789012345678901234567899"),
-      BigInt.parse("40128068573873018143207285483"));
-  test(
-      BigInt.parse(
-          "-7003a3cac2bac4e494d749ae101f7ede8f11dac594fea5f51e15826021d734df6ec"
-          "b6f67d74e2bb0f47ee39cb79fae059734c95d1eacb0340af64c05b83a4f70a737363"
-          "c3799d38c23b7833622d89036b4649bcc7b749037f4954dac6abe5566c97cb6ac81f"
-          "f8a09f8c71c7f08061720483b592517a608088ddb4c2e460ad1a73abbadbda077922"
-          "1751cf22f1191e3be531505c833fede908a17581a9ae96f3c0258edcfe71786b7cf3"
-          "07f67eb9ecd8656d0fd397b0215bfb79efb314299d3e9db70b31a34f5f67e6c5e166"
-          "cfa3e0bf45837c5d64fa3930a91a06b94840b4773d81280ed2af141747a6ac99d882"
-          "a59f47b15ce8c1d716ead646b139b928869902225c85ea220b90e290181f271ed087"
-          "bb6972dfe7d674b09e44c268128340d9172182732990a70af51d589c89f39d8f5dac"
-          "659161aa0a32774728e15e25bad2960b4eacb8b670581b1c431201192c8bdbcc9256"
-          "ef9e863b589f22813158050cdaf5da69f83819639f5a183c7ffe61ba1582d6ace35c"
-          "8318dfdc597d016e70b7bb115fc1a7a3481c3a6296f1504e5ccd9b14e641acb2aa32"
-          "9c3d69b5e8f1609eec8b5b5a2b0192e9f21e7e3960c52975a70cf934c32e67799c40"
-          "863b23c9579a551df4b179e6e2094f86c9fffa4bb5634202e094d380565b44cec833"
-          "db25721010dd5df766204ae8d1e8680075f261801aee047d0ac576b9b10710de54e6"
-          "eaa94648a7fba1576e66ea44f4bb7f6b941268a8d920bfc2727f82457f92cc2a016c"
-          "b",
-          radix: 16),
-      BigInt.parse(
-          "73ac14b30fe9cb8275a7410a06ce5de8a60fe0a02e236197182996ca5886fd4e6937"
-          "555f1f02ed4183ff7f097f76051f286dbb1b24751795cb793b1b81ac259",
-          radix: 16),
-      BigInt.parse(
-          "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020b"
-          "bea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d"
-          "6d51c245e485b576625e7ec6f44c42e9a637ed6b0bff5cb6f406b7edee386bfb5a89"
-          "9fa5ae9f24117c4b1fe649286651ece45b3dc2007cb8a163bf0598da48361c55d39a"
-          "69163fa8fd24cf5f83655d23dca3ad961c62f356208552bb9ed529077096966d670c"
-          "354e4abc9804f1746c08ca18217c32905e462e36ce3be39e772c180e86039b2783a2"
-          "ec07a28fb5c55df06f4c52c9de2bcbf6955817183995497cea956ae515d2261898fa"
-          "051015728e5a8aaac42dad33170d04507a33a85521abdf1cba64ecfb850458dbef0a"
-          "8aea71575d060c7db3970f85a6e1e4c7abf5ae8cdb0933d71e8c94e04a25619dcee3"
-          "d2261ad2ee6bf12ffa06d98a0864d87602733ec86a64521f2b18177b200cbbe11757"
-          "7a615d6c770988c0bad946e208e24fa074e5ab3143db5bfce0fd108e4b82d120a921"
-          "08011a723c12a787e6d788719a10bdba5b2699c327186af4e23c1a946834b6150bda"
-          "2583e9ca2ad44ce8dbbbc2db04de8ef92e8efc141fbecaa6287c59474e6bc05d99b2"
-          "964fa090c3a2233ba186515be7ed1f612970cee2d7afb81bdd762170481cd0069127"
-          "d5b05aa993b4ea988d8fddc186ffb7dc90a6c08f4df435c934063199ffffffffffff"
-          "ffff",
-          radix: 16),
-      BigInt.parse(
-          "b1b35af289290c92fcd3d22fca66016f6db7aa21508991c97f0e53fddc2f7ece7088"
-          "5e935259c28d317be14c0378e2ebd103600e2e1f55b111703fc75217836e24f9bfd8"
-          "63d47cdb26882f491949b1906c2cb016c0e9e9d77c3a9c4a3e85b9ac34057eeb993d"
-          "d048d8ed90b1eea78f84ee48febb1281384c739b1c60dda475395e3928b7081af890"
-          "d2c58eac70d11d7f14c0e98fd168735425d233b7c07506b54149482261067079f82a"
-          "b531a072ede523aca1765c1a587c160f638aa3ccab8cd1f3358c5bac3ed0a6062e92"
-          "94df2322864f6a8e58b4a2d40b600a0f09065d34bd49e60b5656d2c6dcb3af751f4a"
-          "9c10dc7df46215f3043b4077fc2be7f648d388843db9cf94f31b2eb376cf22033a23"
-          "e8984b5b1702f9e5af99507ad3d8d624a104c18af275949e7e88c16651103a2a7620"
-          "c5c8356f1f2311a9cab2c61d30b0af22d7961e42cb13679bf0d52f35b41a0f7c341a"
-          "c414a76a9a85408c39836657594180ffbb4d5a38e4b6eeea125fcde370478f6b7cd8"
-          "903fc8a822075f6e766d83337e6db2eb6605d514327294ec1e076d576eee08220acd"
-          "f4f9ffa31f1aa7b4639eb11797c8f39956b5e4dbca98a0a15eb29136b66917cfdbfb"
-          "dd8ba20475ad401a6f1022a04bed3c8d5227cd7385e9b67096261fcc2ccf2632a4c2"
-          "f5ef640b1f37966f855f8314c97c8ef7a136e54565e95bfe253e579753f5a14c2a01"
-          "6c1",
-          radix: 16));
-}
-
-testModInverse() {
-  void test(BigInt x, BigInt m, BigInt expectedResult) {
-    //print("$x op $m == $expectedResult");
-    // Check that expectedResult is an inverse.
-    assert(expectedResult < m);
-    // The 1 % m handles the m = 1 special case.
-    assert((((x % m) * expectedResult) - BigInt.one) % m == BigInt.zero);
-
-    var result = x.modInverse(m);
-    Expect.equals(expectedResult, result, "$x modinv $m");
-
-    if (x > m) {
-      x = x % m;
-      var result = x.modInverse(m);
-      Expect.equals(expectedResult, result, "$x modinv $m");
-    }
-  }
-
-  void testThrows(BigInt x, BigInt m) {
-    // Throws if not co-prime, which is a symmetric property.
-    Expect.throws(() => x.modInverse(m), null, "$x modinv $m");
-    Expect.throws(() => m.modInverse(x), null, "$m modinv $x");
-  }
-
-  test(BigInt.one, BigInt.one, BigInt.zero);
-
-  testThrows(BigInt.zero, new BigInt.from(1000000001));
-  testThrows(BigInt.two, new BigInt.from(4));
-  testThrows(new BigInt.from(99), new BigInt.from(9));
-  testThrows(new BigInt.from(19), new BigInt.from(1000000001));
-  testThrows(BigInt.parse("123456789012345678901234567890"),
-      BigInt.parse("123456789012345678901234567899"));
-
-  // Co-prime numbers
-  test(new BigInt.from(1234567890), new BigInt.from(19), new BigInt.from(11));
-  test(new BigInt.from(1234567890), new BigInt.from(1000000001),
-      new BigInt.from(189108911));
-  test(new BigInt.from(19), new BigInt.from(1234567890),
-      new BigInt.from(519818059));
-  test(new BigInt.from(1000000001), new BigInt.from(1234567890),
-      new BigInt.from(1001100101));
-
-  test(new BigInt.from(12345), new BigInt.from(12346), new BigInt.from(12345));
-  test(new BigInt.from(12345), new BigInt.from(12346), new BigInt.from(12345));
-
-  test(smallNumber, new BigInt.from(137), new BigInt.from(42));
-  test(new BigInt.from(137), smallNumber, new BigInt.from(856087223));
-  test(mediumNumber, new BigInt.from(137), new BigInt.from(77));
-  test(new BigInt.from(137), mediumNumber, new BigInt.from(540686667207353));
-  test(bigNumber, new BigInt.from(137), new BigInt.from(128));
-  var x = BigInt.parse(
-      "28ea16430c1f1072754aa5ebbfda0d790605a507c6c9758e88697b0b5dd9e74c",
-      radix: 16);
-  var m = BigInt.parse(
-      "fffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffc2f",
-      radix: 16);
-  var r = BigInt.parse(
-      "95929095851002583825372225918533539673793386278"
-      "360575987103577151530201707061",
-      radix: 10);
-  test(x, m, r);
-}
-
-testGcd() {
-  // Call testFunc with all combinations and orders of plus/minus
-  // value and other.
-  void callCombos(
-      BigInt value, BigInt other, void testFunc(BigInt a, BigInt b)) {
-    testFunc(value, other);
-    testFunc(value, -other);
-    testFunc(-value, other);
-    testFunc(-value, -other);
-    if (value == other) return;
-    testFunc(other, value);
-    testFunc(other, -value);
-    testFunc(-other, value);
-    testFunc(-other, -value);
-  }
-
-  // Test that gcd of value and other (non-negative) is expectedResult.
-  // Tests all combinations of positive and negative values and order of
-  // operands, so use positive values and order is not important.
-  void test(BigInt value, BigInt other, BigInt expectedResult) {
-    // Check for bug in test.
-    assert(
-        expectedResult == BigInt.zero || value % expectedResult == BigInt.zero);
-    assert(
-        expectedResult == BigInt.zero || other % expectedResult == BigInt.zero);
-
-    callCombos(value, other, (BigInt a, BigInt b) {
-      var result = a.gcd(b);
-
-      /// Check that the result is a divisor.
-      Expect.equals(
-          BigInt.zero, result == BigInt.zero ? a : a % result, "$result | $a");
-      Expect.equals(
-          BigInt.zero, result == BigInt.zero ? b : b % result, "$result | $b");
-      // Check for bug in test. If assert fails, the expected value is too low,
-      // and the gcd call has found a greater common divisor.
-      assert(result >= expectedResult);
-      Expect.equals(expectedResult, result, "$a.gcd($b)");
-    });
-  }
-
-  // Test that gcd of value and other (non-negative) throws.
-  testThrows(value, other) {
-    callCombos(value, other, (a, b) {
-      Expect.throws(() => a.gcd(b), null, "$a.gcd($b)");
-    });
-  }
-
-  // Format:
-  //  test(value1, value2, expectedResult);
-  test(BigInt.one, BigInt.one, BigInt.one); //     both are 1
-  test(BigInt.one, BigInt.two, BigInt.one); //     one is 1
-  test(new BigInt.from(3), new BigInt.from(5), BigInt.one); //     coprime.
-  test(new BigInt.from(37), new BigInt.from(37),
-      new BigInt.from(37)); // Same larger prime.
-
-  test(new BigInt.from(9999), new BigInt.from(7272),
-      new BigInt.from(909)); // Larger numbers
-
-  test(BigInt.zero, new BigInt.from(1000),
-      new BigInt.from(1000)); // One operand is zero.
-  test(BigInt.zero, BigInt.zero, BigInt.zero); //        Both operands are zero.
-
-  // Multiplying both operands by a number multiplies result by same number.
-  test(new BigInt.from(693), new BigInt.from(609), new BigInt.from(21));
-  test(new BigInt.from(693) << 5, new BigInt.from(609) << 5,
-      new BigInt.from(21) << 5);
-  test(
-      new BigInt.from(693) * new BigInt.from(937),
-      new BigInt.from(609) * new BigInt.from(937),
-      new BigInt.from(21) * new BigInt.from(937));
-  test(
-      new BigInt.from(693) * new BigInt.from(pow(2, 32)),
-      new BigInt.from(609) * new BigInt.from(pow(2, 32)),
-      new BigInt.from(21) * new BigInt.from(pow(2, 32)));
-  test(
-      new BigInt.from(693) * BigInt.two.pow(52),
-      new BigInt.from(609) * BigInt.two.pow(52),
-      new BigInt.from(21) * BigInt.two.pow(52));
-  test(
-      new BigInt.from(693) * BigInt.two.pow(53),
-      new BigInt.from(609) * BigInt.two.pow(53),
-      new BigInt.from(21) * BigInt.two.pow(53)); // Regression.
-  test(
-      new BigInt.from(693) * BigInt.two.pow(99),
-      new BigInt.from(609) * BigInt.two.pow(99),
-      new BigInt.from(21) * BigInt.two.pow(99));
-
-  test(new BigInt.from(1234567890), new BigInt.from(19), BigInt.one);
-  test(new BigInt.from(1234567890), new BigInt.from(1000000001), BigInt.one);
-  test(new BigInt.from(19), new BigInt.from(1000000001), new BigInt.from(19));
-
-  test(new BigInt.from(0x3FFFFFFF), new BigInt.from(0x3FFFFFFF),
-      new BigInt.from(0x3FFFFFFF));
-  test(new BigInt.from(0x3FFFFFFF), new BigInt.from(0x40000000), BigInt.one);
-
-  test(BigInt.two.pow(54), BigInt.two.pow(53), BigInt.two.pow(53));
-
-  test(
-      (BigInt.two.pow(52) - BigInt.one) * BigInt.two.pow(14),
-      (BigInt.two.pow(26) - BigInt.one) * BigInt.two.pow(22),
-      (BigInt.two.pow(26) - BigInt.one) * BigInt.two.pow(14));
-}
-
-foo() => BigInt.parse("1234567890123456789");
-bar() => BigInt.parse("12345678901234567890");
-
-testSmiOverflow() {
-  var a = new BigInt.from(1073741823);
-  var b = new BigInt.from(1073741822);
-  Expect.equals(new BigInt.from(2147483645), a + b);
-  a = -new BigInt.from(1000000000);
-  b = new BigInt.from(1000000001);
-  Expect.equals(-new BigInt.from(2000000001), a - b);
-  Expect.equals(-BigInt.parse("1000000001000000000"), a * b);
-}
-
-testBigintAnd() {
-  var a = BigInt.parse("0x55555555555555555555");
-  var b = BigInt.parse("0x33333333333333333333");
-  var c = BigInt.parse("0x11111111111111111111");
-  Expect.equals(BigInt.zero, BigInt.zero & a);
-  Expect.equals(BigInt.zero, a & BigInt.zero);
-  Expect.equals(c, a & b);
-}
-
-testBigintOr() {
-  var a = BigInt.parse("0x33333333333333333333");
-  var b = BigInt.parse("0x55555555555555555555");
-  var c = BigInt.parse("0x77777777777777777777");
-  Expect.equals(a, BigInt.zero | a);
-  Expect.equals(a, a | BigInt.zero);
-  Expect.equals(c, a | b);
-}
-
-testBigintXor() {
-  var a = BigInt.parse("0x33333333333333333333");
-  var b = BigInt.parse("0x55555555555555555555");
-  var c = BigInt.parse("0x66666666666666666666");
-  Expect.equals(a, BigInt.zero ^ a);
-  Expect.equals(a, a ^ BigInt.zero);
-  Expect.equals(c, a ^ b);
-}
-
-testBigintAdd() {
-  // Bigint and Smi.
-  var a = BigInt.parse("12345678901234567890");
-  var b = BigInt.two;
-  Expect.equals(BigInt.parse("12345678901234567892"), a + b);
-  Expect.equals(BigInt.parse("12345678901234567892"), b + a);
-  // Bigint and Bigint.
-  a = BigInt.parse("10000000000000000001");
-  Expect.equals(BigInt.parse("20000000000000000002"), a + a);
-  Expect.equals(a, BigInt.zero + a);
-  Expect.equals(a, a + BigInt.zero);
-}
-
-testBigintSub() {
-  // Bigint and Smi.
-  var a = BigInt.parse("12345678901234567890");
-  var b = BigInt.two;
-  Expect.equals(BigInt.parse("12345678901234567888"), a - b);
-  Expect.equals(-BigInt.parse("12345678901234567888"), b - a);
-  // Bigint and Bigint.
-  a = BigInt.parse("10000000000000000001");
-  Expect.equals(BigInt.parse("20000000000000000002"), a + a);
-  Expect.equals(-a, BigInt.zero - a);
-  Expect.equals(a, a - BigInt.zero);
-}
-
-testBigintMul() {
-  // Bigint and Smi.
-  var a = BigInt.parse("12345678901234567890");
-  var b = new BigInt.from(10);
-  Expect.equals(BigInt.parse("123456789012345678900"), a * b);
-  Expect.equals(BigInt.parse("123456789012345678900"), b * a);
-  // Bigint and Bigint.
-  a = BigInt.parse("12345678901234567890");
-  b = BigInt.parse("10000000000000000");
-  Expect.equals(BigInt.parse("123456789012345678900000000000000000"), a * b);
-}
-
-testBigintTruncDiv() {
-  var a = BigInt.parse("12345678901234567890");
-  var b = new BigInt.from(10);
-  // Bigint and Smi.
-  Expect.equals(BigInt.parse("1234567890123456789"), a ~/ b);
-  Expect.equals(BigInt.zero, b ~/ a);
-  Expect.equals(new BigInt.from(123456789),
-      BigInt.parse("123456789012345678") ~/ new BigInt.from(1000000000));
-  // TruncDiv as used in toString().
-  a = BigInt.parse("4503599627370496"); // 0x10000000000000
-  b = new BigInt.from(10000);
-  Expect.equals(new BigInt.from(450359962737), a ~/ b);
-  b = new BigInt.from(1000000000);
-  Expect.equals(new BigInt.from(4503599), a ~/ b);
-  // Bigint and Bigint.
-  a = BigInt.parse("12345678901234567890");
-  b = BigInt.parse("10000000000000000");
-  Expect.equals(new BigInt.from(1234), a ~/ b);
-  a = BigInt.parse("9173112362840293939050000000000000000");
-  b = BigInt.parse("50000000000000000");
-  Expect.equals(BigInt.parse("183462247256805878781"), a ~/ b);
-}
-
-testBigintDiv() {
-  // Bigint and Smi.
-  Expect.equals(1234567890123456789.1,
-      BigInt.parse("12345678901234567891") / new BigInt.from(10));
-  Expect.equals(
-      0.000000001234, new BigInt.from(1234) / new BigInt.from(1000000000000));
-  Expect.equals(12345678901234000000.0,
-      BigInt.parse("123456789012340000000") / new BigInt.from(10));
-  // Bigint and Bigint.
-  var a = BigInt.parse("12345670000000000000");
-  var b = BigInt.parse("10000000000000000");
-  Expect.equals(1234.567, a / b);
-}
-
-testBigintModulo() {
-  // Bigint and Smi.
-  var a = new BigInt.from(1000000000005);
-  var b = new BigInt.from(10);
-  Expect.equals(new BigInt.from(5), a % b);
-  Expect.equals(new BigInt.from(10), b % a);
-  // Modulo as used in toString().
-  a = BigInt.parse("4503599627370496"); // 0x10000000000000
-  b = new BigInt.from(10000);
-  Expect.equals(new BigInt.from(496), a % b);
-  b = new BigInt.from(1000000000);
-  Expect.equals(new BigInt.from(627370496), a % b);
-  // Bigint & Bigint
-  a = BigInt.parse("10000000000000000001");
-  b = BigInt.parse("10000000000000000000");
-  Expect.equals(BigInt.one, a % b);
-  Expect.equals(BigInt.parse("10000000000000000000"), b % a);
-  a = BigInt.parse("2432363650");
-  b = BigInt.parse("2201792050");
-  Expect.equals(BigInt.parse("230571600"), a % b);
-  Expect.equals(BigInt.parse("2201792050"), b % a);
-}
-
-testBigintModPow() {
-  var x, e, m;
-  x = new BigInt.from(1234567890);
-  e = new BigInt.from(1000000001);
-  m = new BigInt.from(19);
-  Expect.equals(new BigInt.from(11), x.modPow(e, m));
-  x = new BigInt.from(1234567890);
-  e = new BigInt.from(19);
-  m = new BigInt.from(1000000001);
-  Expect.equals(new BigInt.from(122998977), x.modPow(e, m));
-  x = new BigInt.from(19);
-  e = new BigInt.from(1234567890);
-  m = new BigInt.from(1000000001);
-  Expect.equals(new BigInt.from(619059596), x.modPow(e, m));
-  x = new BigInt.from(19);
-  e = new BigInt.from(1000000001);
-  m = new BigInt.from(1234567890);
-  Expect.equals(new BigInt.from(84910879), x.modPow(e, m));
-  x = new BigInt.from(1000000001);
-  e = new BigInt.from(19);
-  m = new BigInt.from(1234567890);
-  Expect.equals(new BigInt.from(872984351), x.modPow(e, m));
-  x = new BigInt.from(1000000001);
-  e = new BigInt.from(1234567890);
-  m = new BigInt.from(19);
-  Expect.equals(BigInt.zero, x.modPow(e, m));
-  x = BigInt.parse("12345678901234567890");
-  e = BigInt.parse("10000000000000000001");
-  m = new BigInt.from(19);
-  Expect.equals(BigInt.two, x.modPow(e, m));
-  x = BigInt.parse("12345678901234567890");
-  e = new BigInt.from(19);
-  m = BigInt.parse("10000000000000000001");
-  Expect.equals(BigInt.parse("3239137215315834625"), x.modPow(e, m));
-  x = new BigInt.from(19);
-  e = BigInt.parse("12345678901234567890");
-  m = BigInt.parse("10000000000000000001");
-  Expect.equals(BigInt.parse("4544207837373941034"), x.modPow(e, m));
-  x = new BigInt.from(19);
-  e = BigInt.parse("10000000000000000001");
-  m = BigInt.parse("12345678901234567890");
-  Expect.equals(BigInt.parse("11135411705397624859"), x.modPow(e, m));
-  x = BigInt.parse("10000000000000000001");
-  e = new BigInt.from(19);
-  m = BigInt.parse("12345678901234567890");
-  Expect.equals(BigInt.parse("2034013733189773841"), x.modPow(e, m));
-  x = BigInt.parse("10000000000000000001");
-  e = BigInt.parse("12345678901234567890");
-  m = new BigInt.from(19);
-  Expect.equals(BigInt.one, x.modPow(e, m));
-  x = BigInt.parse("12345678901234567890");
-  e = new BigInt.from(19);
-  m = BigInt.parse("10000000000000000001");
-  Expect.equals(BigInt.parse("3239137215315834625"), x.modPow(e, m));
-  x = BigInt.parse("12345678901234567890");
-  e = BigInt.parse("10000000000000000001");
-  m = new BigInt.from(19);
-  Expect.equals(BigInt.two, x.modPow(e, m));
-  x = BigInt.parse("123456789012345678901234567890");
-  e = BigInt.parse("123456789012345678901234567891");
-  m = BigInt.parse("123456789012345678901234567899");
-  Expect.equals(BigInt.parse("116401406051033429924651549616"), x.modPow(e, m));
-  x = BigInt.parse("123456789012345678901234567890");
-  e = BigInt.parse("123456789012345678901234567899");
-  m = BigInt.parse("123456789012345678901234567891");
-  Expect.equals(BigInt.parse("123456789012345678901234567890"), x.modPow(e, m));
-  x = BigInt.parse("123456789012345678901234567899");
-  e = BigInt.parse("123456789012345678901234567890");
-  m = BigInt.parse("123456789012345678901234567891");
-  Expect.equals(BigInt.parse("35088523091000351053091545070"), x.modPow(e, m));
-  x = BigInt.parse("123456789012345678901234567899");
-  e = BigInt.parse("123456789012345678901234567891");
-  m = BigInt.parse("123456789012345678901234567890");
-  Expect.equals(BigInt.parse("18310047270234132455316941949"), x.modPow(e, m));
-  x = BigInt.parse("123456789012345678901234567891");
-  e = BigInt.parse("123456789012345678901234567899");
-  m = BigInt.parse("123456789012345678901234567890");
-  Expect.equals(BigInt.one, x.modPow(e, m));
-  x = BigInt.parse("123456789012345678901234567891");
-  e = BigInt.parse("123456789012345678901234567890");
-  m = BigInt.parse("123456789012345678901234567899");
-  Expect.equals(BigInt.parse("40128068573873018143207285483"), x.modPow(e, m));
-  x = BigInt.parse(
-      "142223781135477974841804437037182877109549636480215350570761436386728140"
-      "00321219503871352719175100865184619168128345594681547640115731246638");
-  e = BigInt.parse(
-      "688057170495263083245752731085731160016625265771524738691797062279575950"
-      "919479651156310413084174304361991240273181430924411258203766946639349880"
-      "404106504114953688890200429043051936362182997575167191584461538746041795"
-      "019663740246921124383173799957296515067912829778249931473903780958741032"
-      "64534184571632120755");
-  m = BigInt.parse(
-      "144173682842817587002196172066264549138375068078359231382946906898412792"
-      "452632726597279520229873489736777248181678202636100459215718497240474064"
-      "366927544074501134727745837254834206456400508719134610847814227274992298"
-      "238973375146473350157304285346424982280927848339601514720098577525635486"
-      "320547905945936448443");
-  Expect.equals(
-      BigInt.parse(
-          "41228476947144730491819644448449646627743926889389391986712371102685"
-          "14984467753960109321610008533258676279344318597060690521027646613453"
-          "25674994677820913027869835916005689276806408148698486814119894325284"
-          "18918299321385420296108046942018595594076729397423805685944237555128"
-          "652606412065971965116137839721723231"),
-      x.modPow(e, m));
-}
-
-testBigintModInverse() {
-  var x, m;
-  x = BigInt.one;
-  m = BigInt.one;
-  Expect.equals(BigInt.zero, x.modInverse(m));
-  x = BigInt.zero;
-  m = new BigInt.from(1000000001);
-  Expect.throws(() => x.modInverse(m), (e) => e is Exception); // Not coprime.
-  x = new BigInt.from(1234567890);
-  m = new BigInt.from(19);
-  Expect.equals(new BigInt.from(11), x.modInverse(m));
-  x = new BigInt.from(1234567890);
-  m = new BigInt.from(1000000001);
-  Expect.equals(new BigInt.from(189108911), x.modInverse(m));
-  x = new BigInt.from(19);
-  m = new BigInt.from(1000000001);
-  Expect.throws(() => x.modInverse(m), (e) => e is Exception); // Not coprime.
-  x = new BigInt.from(19);
-  m = new BigInt.from(1234567890);
-  Expect.equals(new BigInt.from(519818059), x.modInverse(m));
-  x = new BigInt.from(1000000001);
-  m = new BigInt.from(1234567890);
-  Expect.equals(new BigInt.from(1001100101), x.modInverse(m));
-  x = new BigInt.from(1000000001);
-  m = new BigInt.from(19);
-  Expect.throws(() => x.modInverse(m), (e) => e is Exception); // Not coprime.
-  x = BigInt.parse("12345678901234567890");
-  m = new BigInt.from(19);
-  Expect.equals(new BigInt.from(3), x.modInverse(m));
-  x = BigInt.parse("12345678901234567890");
-  m = BigInt.parse("10000000000000000001");
-  Expect.equals(BigInt.parse("9736746307686209582"), x.modInverse(m));
-  x = new BigInt.from(19);
-  m = BigInt.parse("10000000000000000001");
-  Expect.equals(BigInt.parse("6315789473684210527"), x.modInverse(m));
-  x = new BigInt.from(19);
-  m = BigInt.parse("12345678901234567890");
-  Expect.equals(BigInt.parse("10396361179987004539"), x.modInverse(m));
-  x = BigInt.parse("10000000000000000001");
-  m = BigInt.parse("12345678901234567890");
-  Expect.equals(BigInt.parse("325004555487045911"), x.modInverse(m));
-  x = BigInt.parse("10000000000000000001");
-  m = new BigInt.from(19);
-  Expect.equals(new BigInt.from(7), x.modInverse(m));
-  x = BigInt.parse("12345678901234567890");
-  m = BigInt.parse("10000000000000000001");
-  Expect.equals(BigInt.parse("9736746307686209582"), x.modInverse(m));
-  x = BigInt.parse("12345678901234567890");
-  m = new BigInt.from(19);
-  Expect.equals(new BigInt.from(3), x.modInverse(m));
-  x = BigInt.parse("123456789012345678901234567890");
-  m = BigInt.parse("123456789012345678901234567899");
-  Expect.throws(() => x.modInverse(m), (e) => e is Exception); // Not coprime.
-  x = BigInt.parse("123456789012345678901234567890");
-  m = BigInt.parse("123456789012345678901234567891");
-  Expect.equals(
-      BigInt.parse("123456789012345678901234567890"), x.modInverse(m));
-  x = BigInt.parse("123456789012345678901234567899");
-  m = BigInt.parse("123456789012345678901234567891");
-  Expect.equals(BigInt.parse("77160493132716049313271604932"), x.modInverse(m));
-  x = BigInt.parse("123456789012345678901234567899");
-  m = BigInt.parse("123456789012345678901234567890");
-  Expect.throws(() => x.modInverse(m), (e) => e is Exception); // Not coprime.
-  x = BigInt.parse("123456789012345678901234567891");
-  m = BigInt.parse("123456789012345678901234567890");
-  Expect.equals(BigInt.one, x.modInverse(m));
-  x = BigInt.parse("123456789012345678901234567891");
-  m = BigInt.parse("123456789012345678901234567899");
-  Expect.equals(BigInt.parse("46296295879629629587962962962"), x.modInverse(m));
-}
-
-testBigintGcd() {
-  var x, m;
-  x = BigInt.one;
-  m = BigInt.one;
-  Expect.equals(BigInt.one, x.gcd(m));
-  x = new BigInt.from(693);
-  m = new BigInt.from(609);
-  Expect.equals(new BigInt.from(21), x.gcd(m));
-  x = new BigInt.from(693) << 40;
-  m = new BigInt.from(609) << 40;
-  Expect.equals(new BigInt.from(21) << 40, x.gcd(m));
-  x = new BigInt.from(609) << 40;
-  m = new BigInt.from(693) << 40;
-  Expect.equals(new BigInt.from(21) << 40, x.gcd(m));
-  x = BigInt.zero;
-  m = new BigInt.from(1000000001);
-  Expect.equals(m, x.gcd(m));
-  x = new BigInt.from(1000000001);
-  m = BigInt.zero;
-  Expect.equals(x, x.gcd(m));
-  x = BigInt.zero;
-  m = -new BigInt.from(1000000001);
-  Expect.equals(-m, x.gcd(m));
-  x = -new BigInt.from(1000000001);
-  m = BigInt.zero;
-  Expect.equals(-x, x.gcd(m));
-  x = BigInt.zero;
-  m = BigInt.zero;
-  Expect.equals(BigInt.zero, x.gcd(m));
-  x = BigInt.zero;
-  m = BigInt.parse("123456789012345678901234567890");
-  Expect.equals(m, x.gcd(m));
-  x = BigInt.parse("123456789012345678901234567890");
-  m = BigInt.zero;
-  Expect.equals(x, x.gcd(m));
-  x = BigInt.zero;
-  m = -BigInt.parse("123456789012345678901234567890");
-  Expect.equals(-m, x.gcd(m));
-  x = -BigInt.parse("123456789012345678901234567890");
-  m = BigInt.zero;
-  Expect.equals(-x, x.gcd(m));
-  x = new BigInt.from(1234567890);
-  m = new BigInt.from(19);
-  Expect.equals(BigInt.one, x.gcd(m));
-  x = new BigInt.from(1234567890);
-  m = new BigInt.from(1000000001);
-  Expect.equals(BigInt.one, x.gcd(m));
-  x = new BigInt.from(19);
-  m = new BigInt.from(1000000001);
-  Expect.equals(new BigInt.from(19), x.gcd(m));
-  x = new BigInt.from(19);
-  m = new BigInt.from(1234567890);
-  Expect.equals(BigInt.one, x.gcd(m));
-  x = new BigInt.from(1000000001);
-  m = new BigInt.from(1234567890);
-  Expect.equals(BigInt.one, x.gcd(m));
-  x = new BigInt.from(1000000001);
-  m = new BigInt.from(19);
-  Expect.equals(new BigInt.from(19), x.gcd(m));
-  x = BigInt.parse("12345678901234567890");
-  m = new BigInt.from(19);
-  Expect.equals(BigInt.one, x.gcd(m));
-  x = BigInt.parse("12345678901234567890");
-  m = BigInt.parse("10000000000000000001");
-  Expect.equals(BigInt.one, x.gcd(m));
-  x = new BigInt.from(19);
-  m = BigInt.parse("10000000000000000001");
-  Expect.equals(BigInt.one, x.gcd(m));
-  x = new BigInt.from(19);
-  m = BigInt.parse("12345678901234567890");
-  Expect.equals(BigInt.one, x.gcd(m));
-  x = BigInt.parse("10000000000000000001");
-  m = BigInt.parse("12345678901234567890");
-  Expect.equals(BigInt.one, x.gcd(m));
-  x = BigInt.parse("10000000000000000001");
-  m = new BigInt.from(19);
-  Expect.equals(BigInt.one, x.gcd(m));
-  x = BigInt.parse("12345678901234567890");
-  m = BigInt.parse("10000000000000000001");
-  Expect.equals(BigInt.one, x.gcd(m));
-  x = BigInt.parse("12345678901234567890");
-  m = new BigInt.from(19);
-  Expect.equals(BigInt.one, x.gcd(m));
-  x = BigInt.parse("123456789012345678901234567890");
-  m = BigInt.parse("123456789012345678901234567899");
-  Expect.equals(new BigInt.from(9), x.gcd(m));
-  x = BigInt.parse("123456789012345678901234567890");
-  m = BigInt.parse("123456789012345678901234567891");
-  Expect.equals(BigInt.one, x.gcd(m));
-  x = BigInt.parse("123456789012345678901234567899");
-  m = BigInt.parse("123456789012345678901234567891");
-  Expect.equals(BigInt.one, x.gcd(m));
-  x = BigInt.parse("123456789012345678901234567899");
-  m = BigInt.parse("123456789012345678901234567890");
-  Expect.equals(new BigInt.from(9), x.gcd(m));
-  x = BigInt.parse("123456789012345678901234567891");
-  m = BigInt.parse("123456789012345678901234567890");
-  Expect.equals(BigInt.one, x.gcd(m));
-  x = BigInt.parse("123456789012345678901234567891");
-  m = BigInt.parse("123456789012345678901234567899");
-  Expect.equals(BigInt.one, x.gcd(m));
-}
-
-testBigintNegate() {
-  var a = BigInt.parse("0xF000000000000000F");
-  var b = ~a; // negate.
-  Expect.equals(BigInt.parse("-0xF0000000000000010"), b);
-  Expect.equals(BigInt.zero, a & b);
-  Expect.equals(-BigInt.one, a | b);
-}
-
-testShiftAmount() {
-  Expect.equals(BigInt.zero, BigInt.zero << 0);
-  Expect.equals(BigInt.zero, BigInt.zero >> 0);
-  Expect.equals(BigInt.zero, BigInt.zero << 1234567890);
-  Expect.equals(BigInt.zero, BigInt.zero >> 1234567890);
-  Expect.equals(BigInt.two.pow(999), BigInt.one << 999);
-  Expect.equals(BigInt.one, BigInt.two.pow(999) >> 999);
-  // 0x7FFFFFFFFFFFFFFF on VM, slightly rounded up on web platform.
-  const int maxInt64 = 0x7FFFFFFFFFFFF000 + 0xFFF;
-  Expect.equals(BigInt.zero, new BigInt.from(12) >> maxInt64);
-  Expect.equals(-BigInt.one, -new BigInt.from(12) >> maxInt64);
-  bool exceptionCaught = false;
-  try {
-    var a = BigInt.one << maxInt64;
-  } on OutOfMemoryError catch (e) {
-    exceptionCaught = true;
-  } catch (e) {
-    // In JavaScript the allocation of the internal array throws different
-    // kind of errors. Just assume it's the right one.
-    exceptionCaught = true;
-  }
-  Expect.equals(true, exceptionCaught);
-}
-
-void testPow() {
-  Expect.throws(() => BigInt.zero.pow(-1), (e) => e is ArgumentError);
-  Expect.throws(() => BigInt.one.pow(-1), (e) => e is ArgumentError);
-  Expect.equals(BigInt.one, BigInt.zero.pow(0));
-  Expect.equals(BigInt.one, BigInt.one.pow(0));
-  Expect.equals(BigInt.one, BigInt.two.pow(0));
-
-  Expect.equals(
-      BigInt.parse("6208695403009031808124000434786599466508260573005"
-          "3508480680160632742505079094163654310415168343540278191693"
-          "5380629274547924077088101599462083663373536705603680787010"
-          "0454231036999140164473780469056908670815701571304455697970"
-          "9971709527651446612272365411298758026041094781651768636427"
-          "4780767345075500515905845436036697865291662016364446907149"
-          "5652136304764312997430969058854587555188117728022873502683"
-          "6327099687782677885098446991121805146733387058565662606025"
-          "2854981418159051193843689364388302820905062090182919338371"
-          "8783490348348213313279505263650976040646393394551465619437"
-          "7126646818740571207346633109049097273375955956480091920939"
-          "5595130499375022416542475049562151695680373438890512164488"
-          "6567991220660935537691145761690539808578087290707813875567"
-          "9145826183642842261374804672283964244725240865733938342036"
-          "1216219271232461693264437901347421563392441043817990067322"
-          "88"),
-      BigInt.parse("90218646930912603144382974164422").pow(27));
-  ;
-}
-
-void testToRadixString() {
-  // Test that we accept radix 2 to 36 and that we use lower-case
-  // letters.
-  var expected = [
-    '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', //
-    'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', //
-    's', 't', 'u', 'v', 'w', 'x', 'y', 'z' //
-  ];
-  for (var radix = 2; radix <= 36; radix++) {
-    for (var i = 0; i < radix; i++) {
-      Expect.equals(expected[i], new BigInt.from(i).toRadixString(radix));
-    }
-  }
-
-  // Try large numbers (regression test for issue 15316).
-  var bignums = [
-    BigInt.parse("0x8"),
-    BigInt.parse("0x80"),
-    BigInt.parse("0x80000000"),
-    BigInt.parse("0x100000000"),
-    BigInt.parse("0x10000000000000"),
-    BigInt.parse("0x10000000000001"), // 53 significant bits.
-    BigInt.parse("0x20000000000000"),
-    BigInt.parse("0x20000000000002"),
-    BigInt.parse("0x1000000000000000"),
-    BigInt.parse("0x1000000000000100"),
-    BigInt.parse("0x2000000000000000"),
-    BigInt.parse("0x2000000000000200"),
-    BigInt.parse("0x8000000000000000"),
-    BigInt.parse("0x8000000000000800"),
-    BigInt.parse("0x10000000000000000"),
-    BigInt.parse("0x10000000000001000"),
-    BigInt.parse("0x100000000000010000"),
-    BigInt.parse("0x1000000000000100000"),
-    BigInt.parse("0x10000000000001000000"),
-    BigInt.parse("0x100000000000010000000"),
-    BigInt.parse("0x1000000000000100000000"),
-    BigInt.parse("0x10000000000001000000000"),
-  ];
-  for (var bignum in bignums) {
-    for (int radix = 2; radix <= 36; radix++) {
-      String digits = bignum.toRadixString(radix);
-      BigInt result = BigInt.parse(digits, radix: radix);
-      Expect.equals(
-          bignum, result, "${bignum.toRadixString(16)} -> $digits/$radix");
-    }
-  }
-
-  const illegalRadices = [-2, -1, 0, 1, 37];
-  for (final bignum in bignums) {
-    for (final radix in illegalRadices) {
-      try {
-        bignum.toRadixString(radix);
-        Expect.fail("Exception expected for .toRadixString($radix)");
-      } on ArgumentError catch (e) {
-        // Nothing to do.
-      }
-    }
-  }
-}
-
-testToString() {
-  /// Test that converting [value] to a string gives [expect].
-  /// Also test that `-value` gives `"-"+expect`.
-  test(BigInt value, String expect) {
-    Expect.equals(expect, value.toString());
-    Expect.equals(expect, "$value");
-    Expect.equals(expect, (new StringBuffer()..write(value)).toString());
-    if (value == BigInt.zero) return;
-    expect = "-$expect";
-    value = -value;
-    Expect.equals(expect, value.toString());
-    Expect.equals(expect, "$value");
-    Expect.equals(expect, (new StringBuffer()..write(value)).toString());
-  }
-
-  // Very simple tests.
-  test(BigInt.zero, "0");
-  test(BigInt.one, "1");
-  test(BigInt.two, "2");
-  test(new BigInt.from(5), "5");
-
-  // Binary special cases.
-
-  // ~2^30.
-  test(BigInt.parse("0x3fffffff"), "1073741823");
-  test(BigInt.parse("0x40000000"), "1073741824");
-  test(BigInt.parse("0x40000001"), "1073741825");
-  // ~2^31.
-  test(BigInt.parse("0x7fffffff"), "2147483647");
-  test(BigInt.parse("0x80000000"), "2147483648");
-  test(BigInt.parse("0x80000001"), "2147483649");
-  // ~2^32.
-  test(BigInt.parse("0xffffffff"), "4294967295");
-  test(BigInt.parse("0x100000000"), "4294967296");
-  test(BigInt.parse("0x100000001"), "4294967297");
-
-  // ~2^51.
-  test(BigInt.parse("0x7ffffffffffff"), "2251799813685247");
-  test(BigInt.parse("0x8000000000000"), "2251799813685248");
-  test(BigInt.parse("0x8000000000001"), "2251799813685249");
-  // ~2^52.
-  test(BigInt.parse("0xfffffffffffff"), "4503599627370495");
-  test(BigInt.parse("0x10000000000000"), "4503599627370496");
-  test(BigInt.parse("0x10000000000001"), "4503599627370497");
-  // ~2^53.
-  test(BigInt.parse("0x1fffffffffffff"), "9007199254740991");
-  test(BigInt.parse("0x20000000000000"), "9007199254740992");
-  test(BigInt.parse("0x20000000000001"), "9007199254740993");
-  // ~2^62.
-  test(BigInt.parse("0x3fffffffffffffff"), "4611686018427387903");
-  test(BigInt.parse("0x4000000000000000"), "4611686018427387904");
-  test(BigInt.parse("0x4000000000000001"), "4611686018427387905");
-  // ~2^63.
-  test(BigInt.parse("0x7fffffffffffffff"), "9223372036854775807");
-  test(BigInt.parse("0x8000000000000000"), "9223372036854775808");
-  test(BigInt.parse("0x8000000000000001"), "9223372036854775809");
-  // ~2^64.
-  test(BigInt.parse("0xffffffffffffffff"), "18446744073709551615");
-  test(BigInt.parse("0x10000000000000000"), "18446744073709551616");
-  test(BigInt.parse("0x10000000000000001"), "18446744073709551617");
-  // Big bignum.
-  test(BigInt.parse("123456789012345678901234567890"),
-      "123456789012345678901234567890");
-
-  // Decimal special cases.
-
-  BigInt number = new BigInt.from(10);
-  // Numbers 99..99, 100...00, and 100..01 up to 23 digits.
-  for (int i = 1; i < 22; i++) {
-    test(number - BigInt.one, "9" * i);
-    test(number, "1" + "0" * i);
-    test(number + BigInt.one, "1" + "0" * (i - 1) + "1");
-    number *= new BigInt.from(10);
-  }
-}
-
-void testFromToInt() {
-  void test(int x) {
-    var bigFrom = new BigInt.from(x);
-    var bigStr = bigFrom.toString();
-    Expect.equals(x, bigFrom.toInt());
-    Expect.equals(x, int.parse(bigStr));
-  }
-
-  for (int i = 0; i < 20; i++) {
-    test(i);
-    // Dart2js doesn't know that -0 should stay 0.
-    if (i != 0) test(-i);
-  }
-
-  // For now just test "easy" integers since there is no check yet that clamps
-  // the returned integer.
-  for (int i = 0; i < 2000000; i += 10000) {
-    test(i);
-    // Dart2js doesn't know that -0 should stay 0.
-    if (i != 0) test(-i);
-  }
-
-  const minInt64 = -0x80000000 * 0x100000000;
-  test(minInt64);
-}
-
-void testFromToDouble() {
-  Expect.equals(-1.0, (-BigInt.one).toDouble());
-
-  Expect.throws(() => new BigInt.from(double.nan));
-  Expect.throws(() => new BigInt.from(double.infinity));
-  Expect.throws(() => new BigInt.from(-double.infinity));
-
-  const double maxDouble = 1.7976931348623157e+308;
-  const String maxDoubleHexStr = "0xfffffffffffff8000000000000000"
-      "00000000000000000000000000000000000000000000000000000000000000"
-      "00000000000000000000000000000000000000000000000000000000000000"
-      "00000000000000000000000000000000000000000000000000000000000000"
-      "00000000000000000000000000000000000000000";
-
-  // The following value lies directly on the boundary between max double and
-  // infinity. It rounds to infinity. Any value below rounds to a finite double
-  // value.
-  const String maxDoubleBoundaryStr = "0xfffffffffffffc0000000000"
-      "00000000000000000000000000000000000000000000000000000000000000"
-      "00000000000000000000000000000000000000000000000000000000000000"
-      "00000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000";
-
-  var bigMax = BigInt.parse(maxDoubleHexStr);
-  var bigBoundary = BigInt.parse(maxDoubleBoundaryStr);
-  Expect.equals(maxDouble, bigMax.toDouble());
-  Expect.equals(bigMax, new BigInt.from(maxDouble));
-  Expect.equals(double.infinity, bigBoundary.toDouble());
-  Expect.equals(maxDouble, (bigBoundary - BigInt.one).toDouble());
-
-  Expect.equals(-maxDouble, (-bigMax).toDouble());
-  Expect.equals(-bigMax, new BigInt.from(-maxDouble));
-  Expect.equals(-double.infinity, (-bigBoundary).toDouble());
-  Expect.equals(-maxDouble, (-(bigBoundary - BigInt.one)).toDouble());
-
-  void test(int x) {
-    var str = x.toString();
-    var big = BigInt.parse(str);
-    Expect.equals(x, big.toDouble());
-  }
-
-  for (int i = 0; i < 20; i++) {
-    test(i);
-    // Dart2js doesn't know that -0 should stay 0.
-    if (i != 0) test(-i);
-  }
-
-  for (int i = 0; i < 2000000; i += 10000) {
-    test(i);
-    // Dart2js doesn't know that -0 should stay 0.
-    if (i != 0) test(-i);
-  }
-
-  for (int i = 1000; i < 100000; i += 1000) {
-    var d = 1 / i;
-    Expect.equals(BigInt.zero, new BigInt.from(d));
-  }
-
-  // Non-integer values are truncated.
-  Expect.equals(BigInt.one, new BigInt.from(1.5));
-  Expect.equals(-BigInt.one, new BigInt.from(-1.5));
-
-  Expect.equals(BigInt.zero, new BigInt.from(0.9999999999999999));
-  Expect.equals(BigInt.zero, new BigInt.from(-0.9999999999999999));
-
-  // Regression test for http://dartbug.com/41819
-  // Rounding edge case where last digit causes rounding.
-  Expect.equals(-3.69616463331328e+27,
-      BigInt.parse("-3696164633313280000000000000").toDouble());
-  Expect.equals(-3.6961646333132803e+27,
-      BigInt.parse("-3696164633313280000000000001").toDouble());
-}
-
-main() {
-  for (int i = 0; i < 8; i++) {
-    Expect.equals(BigInt.parse("1234567890123456789"), foo()); //# 01: ok
-    Expect.equals(BigInt.parse("12345678901234567890"), bar()); //# 02: ok
-    testModPow(); //# 03: ok
-    testModInverse(); //# 04: ok
-    testGcd(); //# 05: ok
-    testSmiOverflow(); //# 06: ok
-    testBigintAnd(); //# 07: ok
-    testBigintOr(); //# 08: ok
-    testBigintXor(); //# 09: ok
-    testBigintAdd(); //# 10: ok
-    testBigintSub(); //# 11: ok
-    testBigintMul(); //# 12: ok
-    testBigintTruncDiv(); //# 12: ok
-    testBigintDiv(); //# 13: ok
-    testBigintModulo(); //# 14: ok
-    testBigintModPow(); //# 15: ok
-    testBigintModInverse(); //# 16: ok
-    testBigintGcd(); //# 17: ok
-    testBigintNegate(); //# 18: ok
-    testShiftAmount(); //# 19: ok
-    testPow(); //# 20: ok
-    testToRadixString(); //# 21: ok
-    testToString(); //# 22: ok
-    testFromToInt(); //# 23: ok
-    testFromToDouble(); //# 24: ok
-    Expect.equals(BigInt.parse("12345678901234567890"), //# 25: ok
-        BigInt.parse("12345678901234567890").abs()); //# 25: ok
-    Expect.equals(BigInt.parse("12345678901234567890"), //# 26: ok
-        BigInt.parse("-12345678901234567890").abs()); //# 26: ok
-    var a = BigInt.parse("10000000000000000000"); //# 27: ok
-    var b = BigInt.parse("10000000000000000001"); //# 27: ok
-    Expect.equals(false, a.hashCode == b.hashCode); //# 27: ok
-    Expect.equals(true, a.hashCode == (b - BigInt.one).hashCode); //# 27: ok
-
-    // Regression test for http://dartbug.com/36105
-    var overbig = -BigInt.from(10).pow(309);
-    Expect.equals(overbig.toDouble(), double.negativeInfinity);
-  }
-}
diff --git a/tests/corelib_2/bit_twiddling_test.dart b/tests/corelib_2/bit_twiddling_test.dart
deleted file mode 100644
index 51aea1b70c5..00000000000
--- a/tests/corelib_2/bit_twiddling_test.dart
+++ /dev/null
@@ -1,186 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Testing int.bitLength, int.toUnsigned and int.toSigned.
-
-// @dart = 2.9
-
-library bit_twiddling_test;
-
-import "package:expect/expect.dart";
-
-testBitLength() {
-  check(int i, width) {
-    Expect.equals(width, i.bitLength, '$i.bitLength ==  $width');
-    // (~i) written as (-i-1) to avoid issues with limited range of dart2js ops.
-    Expect.equals(width, (-i - 1).bitLength, '(~$i).bitLength == $width');
-  }
-
-  check(0, 0);
-  check(1, 1);
-  check(2, 2);
-  check(3, 2);
-  check(4, 3);
-  check(5, 3);
-  check(6, 3);
-  check(7, 3);
-  check(8, 4);
-  check(127, 7);
-  check(128, 8);
-  check(129, 8);
-  check(2147483646, 31);
-  check(2147483647, 31);
-  check(2147483648, 32);
-  check(2147483649, 32);
-  check(4294967295, 32);
-  check(4294967296, 33);
-  check(0xffffffffff, 40);
-  check(0xfffffffffff, 44);
-  check(0xffffffffffff, 48);
-  check(0x1000000000000, 49);
-  check(0x1000000000001, 49);
-  check(0x1ffffffffffff, 49);
-  check(0x2000000000000, 50);
-  check(0x2000000000001, 50);
-
-  check(0xffffffffffffff, 56); //   //# int64: ok
-  check(0x7fffffffffffffff, 63); // //# int64: continued
-  check(0xffffffffffffffff, 0); //  //# int64: continued
-}
-
-testToUnsigned() {
-  checkU(src, width, expected) {
-    Expect.equals(expected, src.toUnsigned(width));
-  }
-
-  checkU(1, 8, 1);
-  checkU(0xff, 8, 0xff);
-  checkU(0xffff, 8, 0xff);
-  checkU(-1, 8, 0xff);
-  checkU(0xffffffff, 32, 0xffffffff);
-
-  checkU(0x7fffffff, 30, 0x3fffffff);
-  checkU(0x7fffffff, 31, 0x7fffffff);
-  checkU(0x7fffffff, 32, 0x7fffffff);
-  checkU(0x80000000, 30, 0);
-  checkU(0x80000000, 31, 0);
-  checkU(0x80000000, 32, 0x80000000);
-  checkU(0xffffffff, 30, 0x3fffffff);
-  checkU(0xffffffff, 31, 0x7fffffff);
-  checkU(0xffffffff, 32, 0xffffffff);
-  checkU(0x100000000, 30, 0);
-  checkU(0x100000000, 31, 0);
-  checkU(0x100000000, 32, 0);
-  checkU(0x1ffffffff, 30, 0x3fffffff);
-  checkU(0x1ffffffff, 31, 0x7fffffff);
-  checkU(0x1ffffffff, 32, 0xffffffff);
-
-  checkU(-1, 0, 0);
-  checkU(0, 0, 0);
-  checkU(1, 0, 0);
-  checkU(2, 0, 0);
-  checkU(3, 0, 0);
-
-  checkU(-1, 1, 1);
-  checkU(0, 1, 0);
-  checkU(1, 1, 1);
-  checkU(2, 1, 0);
-  checkU(3, 1, 1);
-  checkU(4, 1, 0);
-
-  checkU(-1, 2, 3);
-  checkU(0, 2, 0);
-  checkU(1, 2, 1);
-  checkU(2, 2, 2);
-  checkU(3, 2, 3);
-  checkU(4, 2, 0);
-
-  checkU(-1, 3, 7);
-  checkU(0, 3, 0);
-  checkU(1, 3, 1);
-  checkU(2, 3, 2);
-  checkU(3, 3, 3);
-  checkU(4, 3, 4);
-
-  checkU(0x0100000000000001, 2, 1); //                   //# int64: continued
-  checkU(0x0200000000000001, 60, 0x200000000000001); //  //# int64: continued
-  checkU(0x0200000000000001, 59, 0x200000000000001); //  //# int64: continued
-  checkU(0x0200000000000001, 58, 0x200000000000001); //  //# int64: continued
-  checkU(0x0200000000000001, 57, 1); //                  //# int64: continued
-
-  checkU(0x8100000000000001, 2, 1); //                   //# int64: continued
-  checkU(0x8200000000000001, 60, 0x200000000000001); //  //# int64: continued
-  checkU(0x8200000000000001, 59, 0x200000000000001); //  //# int64: continued
-  checkU(0x8200000000000001, 58, 0x200000000000001); //  //# int64: continued
-  checkU(0x8200000000000001, 57, 1); //                  //# int64: continued
-}
-
-testToSigned() {
-  checkS(src, width, expected) {
-    Expect.equals(
-        expected, src.toSigned(width), '$src.toSigned($width) == $expected');
-  }
-
-  checkS(1, 8, 1);
-  checkS(0xff, 8, -1);
-  checkS(0xffff, 8, -1);
-  checkS(-1, 8, -1);
-  checkS(128, 8, -128);
-  checkS(0xffffffff, 32, -1);
-
-  checkS(0x7fffffff, 30, -1);
-  checkS(0x7fffffff, 31, -1);
-  checkS(0x7fffffff, 32, 0x7fffffff);
-  checkS(0x80000000, 30, 0);
-  checkS(0x80000000, 31, 0);
-  checkS(0x80000000, 32, -2147483648);
-  checkS(0xffffffff, 30, -1);
-  checkS(0xffffffff, 31, -1);
-  checkS(0xffffffff, 32, -1);
-
-  checkS(0x100000000, 30, 0);
-  checkS(0x100000000, 31, 0);
-  checkS(0x100000000, 32, 0);
-  checkS(0x1ffffffff, 30, -1);
-  checkS(0x1ffffffff, 31, -1);
-  checkS(0x1ffffffff, 32, -1);
-
-  checkS(-1, 1, -1);
-  checkS(0, 1, 0);
-  checkS(1, 1, -1); // The only bit is the sign bit.
-  checkS(2, 1, 0);
-  checkS(3, 1, -1);
-  checkS(4, 1, 0);
-
-  checkS(-1, 2, -1);
-  checkS(0, 2, 0);
-  checkS(1, 2, 1);
-  checkS(2, 2, -2);
-  checkS(3, 2, -1);
-  checkS(4, 2, 0);
-
-  checkS(-1, 3, -1);
-  checkS(0, 3, 0);
-  checkS(1, 3, 1);
-  checkS(2, 3, 2);
-  checkS(3, 3, 3);
-  checkS(4, 3, -4);
-
-  checkS(0x0100000000000001, 2, 1); //                       //# int64: continued
-  checkS(0x0200000000000001, 60, 0x200000000000001); //      //# int64: continued
-  checkS(0x0200000000000001, 59, 0x200000000000001); //      //# int64: continued
-  checkS(0x0200000000000001, 58, -0x200000000000000 + 1); // //# int64: continued
-  checkS(0x0200000000000001, 57, 1); //                      //# int64: continued
-
-  checkS(0x8100000000000001, 2, 1); //                       //# int64: continued
-  checkS(0x8200000000000001, 60, 0x200000000000001); //      //# int64: continued
-  checkS(0x8200000000000001, 59, 0x200000000000001); //      //# int64: continued
-  checkS(0x8200000000000001, 58, -0x200000000000000 + 1); // //# int64: continued
-  checkS(0x8200000000000001, 57, 1); //                      //# int64: continued
-}
-
-main() {
-  testBitLength();
-  testToUnsigned();
-  testToSigned();
-}
diff --git a/tests/corelib_2/bool_from_environment2_test.dart b/tests/corelib_2/bool_from_environment2_test.dart
deleted file mode 100644
index c0e7415777e..00000000000
--- a/tests/corelib_2/bool_from_environment2_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  const bool.fromEnvironment('NOT_FOUND', defaultValue: ''); // //# 01: compile-time error
-  const bool.fromEnvironment('NOT_FOUND', defaultValue: 1); // //# 02: compile-time error
-  const bool.fromEnvironment(null); // //# 03: compile-time error
-  const bool.fromEnvironment(1); // //# 04: compile-time error
-  const bool.fromEnvironment([]); // //# 05: compile-time error
-}
diff --git a/tests/corelib_2/bool_from_environment_test.dart b/tests/corelib_2/bool_from_environment_test.dart
deleted file mode 100644
index 24788fff248..00000000000
--- a/tests/corelib_2/bool_from_environment_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// SharedOptions=-Da=true -Db=false -Dc=NOTBOOL -Dd=True
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.isTrue(const bool.fromEnvironment('a'));
-  Expect.isFalse(const bool.fromEnvironment('b'));
-  Expect.isTrue(const bool.fromEnvironment('c', defaultValue: true));
-  Expect.isFalse(const bool.fromEnvironment('c', defaultValue: false));
-  Expect.isFalse(const bool.fromEnvironment('d', defaultValue: false));
-  Expect.equals(const bool.fromEnvironment('dart.isVM'), !identical(1.0, 1));
-}
diff --git a/tests/corelib_2/bool_hashcode_test.dart b/tests/corelib_2/bool_hashcode_test.dart
deleted file mode 100644
index 3bc82f2b2c9..00000000000
--- a/tests/corelib_2/bool_hashcode_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class BoolHashCodeTest {
-  static testMain() {
-    Expect.notEquals(true.hashCode, false.hashCode);
-  }
-}
-
-main() {
-  BoolHashCodeTest.testMain();
-}
diff --git a/tests/corelib_2/bool_operator_test.dart b/tests/corelib_2/bool_operator_test.dart
deleted file mode 100644
index ffbcb1b64b6..00000000000
--- a/tests/corelib_2/bool_operator_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  void test(bool b1, bool b2) {
-    var and1 = b1 && b2;
-    var and2 = b1 & b2;
-    var and3 = b1 ? b2 ? true : false : false;
-    var or1 = b1 || b2;
-    var or2 = b1 | b2;
-    var or3 = b1 ? true : b2 ? true : false;
-    var xor1 = b1 != b2;
-    var xor2 = b1 ^ b2;
-    var xor3 = b1 ? b2 ? false : true : b2 ? true : false;
-    var nb1 = !b1;
-    var nb2 = !b2;
-    Expect.equals(and3, and1);
-    Expect.equals(and3, and2);
-    Expect.equals(or3, or1);
-    Expect.equals(or3, or2);
-    Expect.equals(xor3, xor1);
-    Expect.equals(xor3, xor2);
-    Expect.notEquals(nb1, b1);
-    Expect.notEquals(nb2, b2);
-  }
-
-  test(true, false);
-  test(true, true);
-  test(false, true);
-  test(false, false);
-
-  Expect.isTrue(true || (throw "unreachable"));
-  Expect.throws(() => false || (throw "unreachable"));
-
-  Expect.isFalse(false && (throw "unreachable"));
-  Expect.throws(() => true && (throw "unreachable"));
-
-  Expect.throws(() => true | (throw "unreachable"));
-  Expect.throws(() => false | (throw "unreachable"));
-
-  Expect.throws(() => true & (throw "unreachable"));
-  Expect.throws(() => false & (throw "unreachable"));
-}
diff --git a/tests/corelib_2/cast_helper.dart b/tests/corelib_2/cast_helper.dart
deleted file mode 100644
index bb139872e85..00000000000
--- a/tests/corelib_2/cast_helper.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-final elements = <C>[c, d, e, f, null];
-
-class C {}
-
-class D extends C {}
-
-class E extends C {}
-
-class F implements D, E {}
-
-final c = C();
-final d = D();
-final e = E();
-final f = F();
diff --git a/tests/corelib_2/cast_iterable_test.dart b/tests/corelib_2/cast_iterable_test.dart
deleted file mode 100644
index 4b01e02e801..00000000000
--- a/tests/corelib_2/cast_iterable_test.dart
+++ /dev/null
@@ -1,70 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:collection";
-import "package:expect/expect.dart";
-import 'cast_helper.dart';
-
-void main() {
-  testDowncastDirectAccess();
-  testDowncastNoDirectAccess();
-  testDowncastUntouchableElements();
-  testUpcast();
-}
-
-void testDowncastDirectAccess() {
-  var iterable = new Iterable<C>.generate(elements.length, (n) => elements[n]);
-
-  // An iterable that (likely) can do direct access.
-  var dIterable = Iterable.castFrom<C, D>(iterable);
-
-  Expect.throws(() => dIterable.first, null, "direct.first");
-  Expect.equals(d, dIterable.elementAt(1));
-  Expect.throws(() => dIterable.elementAt(2), null, "direct.2"); // E is not D.
-  Expect.equals(f, dIterable.skip(3).first); // Skip does not access element.
-  Expect.equals(null, dIterable.skip(3).elementAt(1));
-
-  Expect.throws(() => dIterable.toList(), null, "direct.toList");
-}
-
-void testDowncastNoDirectAccess() {
-  var iterable = new Iterable<C>.generate(elements.length, (n) => elements[n]);
-
-  // An iterable that cannot do direct access.
-  var dIterable = Iterable.castFrom<C, D>(iterable.where((_) => true));
-
-  Expect.throws(() => dIterable.first, null, "nonDirect.first");
-  Expect.equals(d, dIterable.elementAt(1));
-  // E is not D.
-  Expect.throws(() => dIterable.elementAt(2), null, "nonDirect.2");
-  Expect.equals(f, dIterable.skip(3).first); // Skip does not access element.
-  Expect.equals(null, dIterable.skip(3).elementAt(1));
-
-  Expect.throws(() => dIterable.toList(), null, "nonDirect.toList");
-}
-
-void testDowncastUntouchableElements() {
-  // Iterable that definitely won't survive accessing element 3.
-  var iterable = new Iterable<C>.generate(
-      elements.length, (n) => n == 3 ? throw "untouchable" : elements[n]);
-  var dIterable = Iterable.castFrom<C, D>(iterable);
-
-  Expect.throws(() => dIterable.first, null, "untouchable.first");
-  Expect.equals(d, dIterable.elementAt(1));
-  Expect.throws(() => dIterable.elementAt(3), null, "untouchable.3");
-  // Skip does not access element.
-  Expect.equals(null, dIterable.skip(4).first);
-  Expect.equals(null, dIterable.skip(3).elementAt(1));
-
-  Expect.throws(() => dIterable.toList(), null, "untouchable.toList");
-}
-
-void testUpcast() {
-  var iterable = new Iterable<C>.generate(elements.length, (n) => elements[n]);
-
-  var objectIterable = Iterable.castFrom<C, Object>(iterable);
-  Expect.listEquals(elements, objectIterable.toList());
-}
diff --git a/tests/corelib_2/cast_list_test.dart b/tests/corelib_2/cast_list_test.dart
deleted file mode 100644
index 47a1d1d4158..00000000000
--- a/tests/corelib_2/cast_list_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:collection";
-import "package:expect/expect.dart";
-import 'cast_helper.dart';
-
-void main() {
-  testDowncast();
-  testUpcast();
-  testRegression();
-}
-
-void testDowncast() {
-  var list = new List<C>.from(elements);
-  var dList = List.castFrom<C, D>(list);
-
-  Expect.throws(() => dList.first); // C is not D.
-  Expect.equals(d, dList[1]);
-  Expect.throws(() => dList[2]); // E is not D.
-  Expect.equals(f, dList[3]);
-  Expect.equals(null, dList.last);
-
-  Expect.throws(() => dList.toList());
-
-  // Setting works.
-  dList[2] = d;
-  Expect.equals(d, dList[2]);
-}
-
-void testUpcast() {
-  var list2 = new List<C>.from(elements);
-  var dList2 = List.castFrom<C, Object>(list2);
-  Expect.listEquals(elements, dList2);
-  Expect.throws(() => dList2[2] = new Object()); // Cannot set non-C.
-  Expect.listEquals(elements, dList2);
-}
-
-void testRegression() {
-  var numList = <num>[4, 3, 2, 1];
-  var intList = numList.cast<int>();
-  intList.sort(null);
-  Expect.listEquals([1, 2, 3, 4], numList);
-  Expect.listEquals([1, 2, 3, 4], intList);
-}
diff --git a/tests/corelib_2/cast_map_test.dart b/tests/corelib_2/cast_map_test.dart
deleted file mode 100644
index a662a7dc333..00000000000
--- a/tests/corelib_2/cast_map_test.dart
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:collection";
-import "package:expect/expect.dart";
-import 'cast_helper.dart';
-
-void main() {
-  testDowncast();
-  testUpcast();
-}
-
-void testDowncast() {
-  var map = new Map.fromIterables(elements, elements);
-  var dMap = Map.castFrom<C, C, D, D>(map);
-
-  Expect.isTrue(dMap is Map<D, D>);
-
-  Expect.equals(null, dMap[new C()]);
-  Expect.throws(() => dMap[c]); // C is not D.
-  Expect.isTrue(dMap.containsKey(c)); // containsKey should not be typed.
-  Expect.equals(d, dMap[d]);
-  Expect.throws(() => dMap[e]); // E is not D.
-  Expect.isTrue(dMap.containsKey(null));
-  Expect.equals(null, dMap[null]);
-
-  Expect.equals(5, dMap.length);
-  Expect.throws(() => dMap.remove(c)); // Removes key but fails to return value.
-  Expect.equals(4, dMap.length);
-  Expect.equals(null, dMap[c]);
-
-  // Runtime errors when assigning or accessing a C.
-  Expect.throws(() => dMap[c] = d);
-  Expect.throws(() => dMap[d] = c);
-  Expect.equals(4, dMap.length);
-
-  // Test keys and values.
-  Expect.isTrue(dMap.keys is Iterable<D>);
-  Expect.isTrue(dMap.values is Iterable<D>);
-  Expect.throws(() => dMap.keys.toList());
-  Expect.throws(() => dMap.values.toList());
-}
-
-void testUpcast() {
-  var map = new Map.fromIterables(elements, elements);
-  var objectMap = Map.castFrom<C, C, Object, Object>(map);
-
-  Expect.equals(5, objectMap.length);
-  Expect.equals(c, objectMap[c]);
-  Expect.isTrue(objectMap.containsKey(c));
-  Expect.equals(c, objectMap.remove(c));
-  Expect.equals(4, objectMap.length);
-
-  // Test keys and values.
-  Expect.isTrue(objectMap.keys is Iterable<Object>);
-  Expect.isTrue(objectMap.values is Iterable<Object>);
-  var expected = new List<Object>.from(elements);
-  expected.remove(c);
-  Expect.listEquals(expected, objectMap.keys.toList());
-  Expect.listEquals(expected, objectMap.values.toList());
-}
diff --git a/tests/corelib_2/cast_set_test.dart b/tests/corelib_2/cast_set_test.dart
deleted file mode 100644
index 89d38affe0b..00000000000
--- a/tests/corelib_2/cast_set_test.dart
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:collection";
-import "package:expect/expect.dart";
-import 'cast_helper.dart';
-
-void main() {
-  testOrder();
-  testDowncast();
-  testUpcast();
-  testNewSet();
-}
-
-void testOrder() {
-  var setEls = new Set<C>.from(elements); // Linked HashSet.
-  Expect.listEquals(elements, setEls.toList()); // Preserves order.
-}
-
-void testDowncast() {
-  var setEls = new Set<C>.from(elements);
-  var dSet = Set.castFrom<C, D>(setEls);
-
-  // Preserves order.
-  Expect.throws(() => dSet.first); // C is not D.
-  Expect.equals(d, dSet.elementAt(1));
-  Expect.throws(() => dSet.elementAt(2)); // E is not D.
-  Expect.equals(f, dSet.elementAt(3));
-  Expect.equals(null, dSet.elementAt(4));
-
-  Expect.throws(() => dSet.toList());
-
-  // Contains should not be typed.
-  var newC = new C();
-  Expect.isFalse(dSet.contains(newC));
-  Expect.throws(() => dSet.add(newC));
-  Expect.isFalse(dSet.contains(newC));
-  Expect.isTrue(dSet.contains(c));
-
-  // Remove and length should not be typed.
-  Expect.equals(5, dSet.length);
-  dSet.remove(c); // Success, no type checks.
-  Expect.equals(4, dSet.length);
-}
-
-void testUpcast() {
-  var setEls = new Set<C>.from(elements);
-  var objectSet = Set.castFrom<C, Object>(setEls);
-
-  Expect.listEquals(elements, objectSet.toList());
-
-  var newObject = new Object();
-  Expect.throws(() => objectSet.add(newObject));
-  Expect.isFalse(objectSet.contains(newObject));
-
-  var toSet = objectSet.toSet();
-  Expect.isTrue(toSet is LinkedHashSet<Object>);
-  Expect.isFalse(toSet is LinkedHashSet<C>);
-}
-
-void testNewSet() {
-  // Specified custom newSet as empty HashSet.
-  var setEls = new Set<C>.from(elements);
-  var customNewSet;
-  var objectSet2 = Set.castFrom<C, Object>(setEls,
-      newSet: <T>() => customNewSet = new HashSet<T>());
-
-  var customToSet = objectSet2.toSet();
-  Expect.isTrue(customToSet is HashSet<Object>);
-  Expect.isFalse(customToSet is HashSet<C>);
-  Expect.identical(customToSet, customNewSet);
-}
diff --git a/tests/corelib_2/collection_from_test.dart b/tests/corelib_2/collection_from_test.dart
deleted file mode 100644
index 4c25fbc2c50..00000000000
--- a/tests/corelib_2/collection_from_test.dart
+++ /dev/null
@@ -1,95 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library collection.from.test;
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-
-main() {
-  for (Iterable<num> elements in [
-    new Set<num>(),
-    <num>[],
-    const <num>[],
-    const <num, int>{}.keys,
-    const <int, num>{}.values,
-    new Iterable<num>.generate(0),
-    new Set<num>()..add(1)..add(2)..add(4),
-    <num>[1, 2, 4],
-    new Iterable<num>.generate(3, (i) => [1, 2, 4][i]),
-    const <num>[1, 2, 4],
-    const <num, int>{1: 0, 2: 0, 4: 0}.keys,
-    const <int, num>{1: 1, 2: 2, 4: 4}.values,
-  ]) {
-    int elementCount = elements.length;
-    check(elements, new List<num>.from(elements));
-    check(elements, new List<int>.from(elements));
-    check(elements, new List<Object>.from(elements));
-    check(elements, new List<num>.from(elements, growable: true));
-    check(elements, new List<int>.from(elements, growable: true));
-    check(elements, new List<Object>.from(elements, growable: true));
-    check(elements, new List<num>.from(elements, growable: false));
-    check(elements, new List<int>.from(elements, growable: false));
-    check(elements, new List<Object>.from(elements, growable: false));
-    check(elements, new Queue<num>.from(elements));
-    check(elements, new Queue<int>.from(elements));
-    check(elements, new Queue<Object>.from(elements));
-    check(elements, new ListQueue<num>.from(elements));
-    check(elements, new ListQueue<int>.from(elements));
-    check(elements, new ListQueue<Object>.from(elements));
-    check(elements, new DoubleLinkedQueue<num>.from(elements));
-    check(elements, new DoubleLinkedQueue<int>.from(elements));
-    check(elements, new DoubleLinkedQueue<Object>.from(elements));
-    check(elements, new Set<num>.from(elements));
-    check(elements, new Set<int>.from(elements));
-    check(elements, new Set<Object>.from(elements));
-    check(elements, new HashSet<num>.from(elements));
-    check(elements, new HashSet<int>.from(elements));
-    check(elements, new HashSet<Object>.from(elements));
-    check(elements, new LinkedHashSet<num>.from(elements));
-    check(elements, new LinkedHashSet<int>.from(elements));
-    check(elements, new LinkedHashSet<Object>.from(elements));
-    check(elements, new SplayTreeSet<num>.from(elements));
-    check(elements, new SplayTreeSet<int>.from(elements));
-    check(elements, new SplayTreeSet<Object>.from(elements));
-    // Sanity check that elements didn't change.
-    Expect.equals(elementCount, elements.length);
-
-    // Lists may be growable or not growable.
-    {
-      var list = new List<num>.from(elements, growable: true);
-      Expect.equals(elementCount, list.length);
-      list.add(42);
-      Expect.equals(elementCount + 1, list.length);
-    }
-    {
-      var list = new List<num>.from(elements);
-      Expect.equals(elementCount, list.length);
-      list.add(42);
-      Expect.equals(elementCount + 1, list.length);
-    }
-    {
-      var list = new List<num>.from(elements, growable: false);
-      Expect.equals(elementCount, list.length);
-      Expect.throwsUnsupportedError(() {
-        list.add(42);
-      });
-      Expect.equals(elementCount, list.length);
-    }
-  }
-}
-
-void check(Iterable<num> initial, Iterable other) {
-  Expect.equals(initial.length, other.length);
-
-  for (var element in other) {
-    initial.contains(element);
-  }
-
-  for (var element in initial) {
-    other.contains(element);
-  }
-}
diff --git a/tests/corelib_2/collection_length_test.dart b/tests/corelib_2/collection_length_test.dart
deleted file mode 100644
index 8f8187f2c8f..00000000000
--- a/tests/corelib_2/collection_length_test.dart
+++ /dev/null
@@ -1,78 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library map_test;
-
-import 'dart:collection';
-
-// Test that length/isEmpty operations are constant time on
-// maps, strings and collections.
-
-void testString(int n) {
-  String s = "x";
-  String string = "";
-  int length = n;
-  while (true) {
-    if ((length & 1) == 1) {
-      string += s;
-    }
-    length >>= 1;
-    if (length == 0) break;
-    s += s;
-  }
-  testLength(string, n);
-  testLength(string.codeUnits, n);
-}
-
-void testMap(Map map, int n) {
-  for (int i = 0; i < n; i++) {
-    map[i] = i;
-  }
-  testLength(map, n);
-  testLength(map.keys, n);
-  testLength(map.values, n);
-}
-
-void testCollection(var collection, n) {
-  for (int i = 0; i < n; i++) {
-    collection.add(i);
-  }
-  testLength(collection, n);
-}
-
-void testList(List list, n) {
-  // Works even if list is fixed-length.
-  for (int i = 0; i < n; i++) {
-    list[i] = i;
-  }
-  testLength(list, n);
-}
-
-void testLength(var lengthable, int size) {
-  print(lengthable.runtimeType); // Show what hangs the test.
-  int length = 0;
-  // If length, isEmpty or isNotEmpty is not a constant-time (or very fast)
-  // operation, this will timeout.
-  for (int i = 0; i < 100000; i++) {
-    if (!lengthable.isEmpty) length += lengthable.length;
-    if (lengthable.isNotEmpty) length += lengthable.length;
-  }
-  if (length != size * 200000) throw "Bad length: $length / size: $size";
-}
-
-main() {
-  const int N = 100000;
-  testMap(new HashMap(), N);
-  testMap(new LinkedHashMap(), N);
-  testMap(new SplayTreeMap(), N);
-  testCollection(new HashSet(), N);
-  testCollection(new LinkedHashSet(), N);
-  testCollection(new ListQueue(), N);
-  testCollection(new DoubleLinkedQueue(), N);
-  testList([]..length = N, N);
-  testList(new List.filled(N, null), N);
-  testString(N);
-}
diff --git a/tests/corelib_2/collection_of_test.dart b/tests/corelib_2/collection_of_test.dart
deleted file mode 100644
index 61ccd1516e6..00000000000
--- a/tests/corelib_2/collection_of_test.dart
+++ /dev/null
@@ -1,86 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library collection.from.test;
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-
-main() {
-  for (Iterable<num> elements in [
-    new Set<num>(),
-    <num>[],
-    const <num>[],
-    const <num, int>{}.keys,
-    const <int, num>{}.values,
-    new Iterable<num>.generate(0),
-    new Set<num>()..add(1)..add(2)..add(4),
-    <num>[1, 2, 4],
-    new Iterable<num>.generate(3, (i) => [1, 2, 4][i]),
-    const <num>[1, 2, 4],
-    const <num, int>{1: 0, 2: 0, 4: 0}.keys,
-    const <int, num>{1: 1, 2: 2, 4: 4}.values,
-  ]) {
-    String sourceType = elements.runtimeType.toString();
-    check(sourceType, elements, new List<num>.of(elements));
-    Expect.throwsTypeError(() => new List<int>.of(elements));
-    check(sourceType, elements, new List<Object>.of(elements));
-    check(sourceType, elements, new Queue<num>.of(elements));
-    Expect.throwsTypeError(() => new Queue<int>.of(elements));
-    check(sourceType, elements, new Queue<Object>.of(elements));
-    check(sourceType, elements, new ListQueue<num>.of(elements));
-    Expect.throwsTypeError(() => new ListQueue<int>.of(elements));
-    check(sourceType, elements, new ListQueue<Object>.of(elements));
-    check(sourceType, elements, new DoubleLinkedQueue<num>.of(elements));
-    Expect.throwsTypeError(() => new DoubleLinkedQueue<int>.of(elements));
-    check(sourceType, elements, new DoubleLinkedQueue<Object>.of(elements));
-    check(sourceType, elements, new Set<num>.of(elements));
-    Expect.throwsTypeError(() => new Set<int>.of(elements));
-    check(sourceType, elements, new Set<Object>.of(elements));
-    check(sourceType, elements, new HashSet<num>.of(elements));
-    Expect.throwsTypeError(() => new HashSet<int>.of(elements));
-    check(sourceType, elements, new HashSet<Object>.of(elements));
-    check(sourceType, elements, new LinkedHashSet<num>.of(elements));
-    Expect.throwsTypeError(() => new LinkedHashSet<int>.of(elements));
-    check(sourceType, elements, new LinkedHashSet<Object>.of(elements));
-    check(sourceType, elements, new SplayTreeSet<num>.of(elements));
-    Expect.throwsTypeError(() => new SplayTreeSet<int>.of(elements));
-    check(sourceType, elements, new SplayTreeSet<Object>.of(elements));
-
-    // Inference applies to the `of` constructor, unlike the `from` constructor.
-    Expect.isTrue(new List.of(elements) is Iterable<num>);
-    Expect.isTrue(new Queue.of(elements) is Iterable<num>);
-    Expect.isTrue(new ListQueue.of(elements) is Iterable<num>);
-    Expect.isTrue(new DoubleLinkedQueue.of(elements) is Iterable<num>);
-    Expect.isTrue(new Set.of(elements) is Iterable<num>);
-    Expect.isTrue(new HashSet.of(elements) is Iterable<num>);
-    Expect.isTrue(new LinkedHashSet.of(elements) is Iterable<num>);
-    Expect.isTrue(new SplayTreeSet.of(elements) is Iterable<num>);
-
-    Expect.isTrue(new List.of(elements) is! Iterable<int>);
-    Expect.isTrue(new Queue.of(elements) is! Iterable<int>);
-    Expect.isTrue(new ListQueue.of(elements) is! Iterable<int>);
-    Expect.isTrue(new DoubleLinkedQueue.of(elements) is! Iterable<int>);
-    Expect.isTrue(new Set.of(elements) is! Iterable<int>);
-    Expect.isTrue(new HashSet.of(elements) is! Iterable<int>);
-    Expect.isTrue(new LinkedHashSet.of(elements) is! Iterable<int>);
-    Expect.isTrue(new SplayTreeSet.of(elements) is! Iterable<int>);
-  }
-}
-
-void check(String sourceType, Iterable<num> source, Iterable target) {
-  String targetType = target.runtimeType.toString();
-  String name = "$sourceType->$targetType";
-  Expect.equals(source.length, target.length, "$name.length");
-
-  for (var element in target) {
-    Expect.isTrue(source.contains(element), "$name:$element in source");
-  }
-
-  for (var element in source) {
-    Expect.isTrue(target.contains(element), "$name:$element in target");
-  }
-}
diff --git a/tests/corelib_2/collection_removes_test.dart b/tests/corelib_2/collection_removes_test.dart
deleted file mode 100644
index 085a96cf892..00000000000
--- a/tests/corelib_2/collection_removes_test.dart
+++ /dev/null
@@ -1,132 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:collection';
-import "package:expect/expect.dart";
-
-testRemove(base) {
-  int length = base.length;
-  for (int i = 0; i < length; i++) {
-    Expect.isFalse(base.isEmpty);
-    base.remove(base.first);
-  }
-  Expect.isTrue(base.isEmpty);
-}
-
-testRemoveAll(base, Iterable removes) {
-  Set retained = new Set();
-  for (var element in base) {
-    if (!removes.contains(element)) {
-      retained.add(element);
-    }
-  }
-  String name = "$base.removeAll($removes) -> $retained";
-  base.removeAll(removes);
-  for (var value in base) {
-    Expect.isFalse(removes.contains(value), "$name: Found $value");
-  }
-  for (var value in retained) {
-    Expect.isTrue(base.contains(value), "$name: Found $value");
-  }
-}
-
-testRetainAll(base, Iterable retains) {
-  Set retained = new Set();
-  for (var element in base) {
-    if (retains.contains(element)) {
-      retained.add(element);
-    }
-  }
-  String name = "$base.retainAll($retains) -> $retained";
-  base.retainAll(retains);
-  for (var value in base) {
-    Expect.isTrue(retains.contains(value), "$name: Found $value");
-  }
-  for (var value in retained) {
-    Expect.isTrue(base.contains(value), "$name: Found $value");
-  }
-}
-
-testRemoveWhere(base, bool test(value)) {
-  Set retained = new Set();
-  for (var element in base) {
-    if (!test(element)) {
-      retained.add(element);
-    }
-  }
-  String name = "$base.removeWhere(...) -> $retained";
-  base.removeWhere(test);
-  for (var value in base) {
-    Expect.isFalse(test(value), "$name: Found $value");
-  }
-  for (var value in retained) {
-    Expect.isTrue(base.contains(value), "$name: Found $value");
-  }
-}
-
-testRetainWhere(base, bool test(value)) {
-  Set retained = new Set();
-  for (var element in base) {
-    if (test(element)) {
-      retained.add(element);
-    }
-  }
-  String name = "$base.retainWhere(...) -> $retained";
-  base.retainWhere(test);
-  for (var value in base) {
-    Expect.isTrue(test(value), "$name: Found $value");
-  }
-  for (var value in retained) {
-    Expect.isTrue(base.contains(value), "$name: Found $value");
-  }
-}
-
-void main() {
-  var collections = [
-    [],
-    [1],
-    [2],
-    [1, 2],
-    [1, 2, 3, 4, 5, 6, 7, 8, 9, 10],
-    [1, 3, 5, 7, 9],
-    [2, 4, 6, 8, 10]
-  ];
-  for (var base in collections) {
-    for (var delta in collections) {
-      testRemove(base.toList());
-      testRemove(base.toSet());
-
-      var deltaSet = delta.toSet();
-      testRemoveWhere(base.toList(), deltaSet.contains);
-      testRetainWhere(base.toList(), (e) => !deltaSet.contains(e));
-
-      testRemoveAll(base.toSet(), delta);
-      testRemoveAll(base.toSet(), deltaSet);
-      testRetainAll(base.toSet(), delta);
-      testRetainAll(base.toSet(), deltaSet);
-      testRemoveWhere(base.toSet(), deltaSet.contains);
-      testRetainWhere(base.toSet(), (e) => !deltaSet.contains(e));
-
-      // Test the ListBase class's List implementation.
-      testRemoveWhere(new MyList(base.toList()), deltaSet.contains);
-      testRetainWhere(new MyList(base.toList()), (e) => !deltaSet.contains(e));
-    }
-  }
-}
-
-class MyList<E> extends ListBase<E> {
-  List<E> _source;
-  MyList(this._source);
-  int get length => _source.length;
-  void set length(int length) {
-    _source.length = length;
-  }
-
-  E operator [](int index) => _source[index];
-  void operator []=(int index, E value) {
-    _source[index] = value;
-  }
-}
diff --git a/tests/corelib_2/collection_test.dart b/tests/corelib_2/collection_test.dart
deleted file mode 100644
index 8771c9a71d0..00000000000
--- a/tests/corelib_2/collection_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library collection_test;
-
-import "package:expect/expect.dart";
-import 'dart:collection' show Queue;
-
-class CollectionTest {
-  CollectionTest(Iterable<int> iterable) {
-    testFold(iterable);
-  }
-
-  void testFold(Iterable<int> iterable) {
-    Expect.equals(
-        28, iterable.fold/*<int>*/(0, (prev, element) => prev + element));
-    Expect.equals(
-        3024, iterable.fold/*<int>*/(1, (prev, element) => prev * element));
-  }
-}
-
-main() {
-  final TEST_ELEMENTS = const [4, 2, 6, 7, 9];
-  // Const list.
-  new CollectionTest(TEST_ELEMENTS);
-
-  // Fixed size list.
-  var fixedList = new List<int>.filled(TEST_ELEMENTS.length, null);
-  for (int i = 0; i < TEST_ELEMENTS.length; i++) {
-    fixedList[i] = TEST_ELEMENTS[i];
-  }
-  new CollectionTest(fixedList);
-
-  // Growable list.
-  new CollectionTest(new List.from(TEST_ELEMENTS));
-
-  // Set.
-  new CollectionTest(new Set.from(TEST_ELEMENTS));
-
-  // Queue.
-  new CollectionTest(new Queue.from(TEST_ELEMENTS));
-}
diff --git a/tests/corelib_2/collection_to_string_test.dart b/tests/corelib_2/collection_to_string_test.dart
deleted file mode 100644
index 62c7ed7997b..00000000000
--- a/tests/corelib_2/collection_to_string_test.dart
+++ /dev/null
@@ -1,389 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/**
- * Tests for the toString methods on collections and maps.
- */
-
-library collection_to_string;
-
-import "package:expect/expect.dart";
-import 'dart:collection' show Queue, LinkedHashMap;
-import 'dart:math' as Math;
-
-// TODO(jjb): seed random number generator when API allows it
-
-const int NUM_TESTS = 300;
-const int MAX_COLLECTION_SIZE = 7;
-
-Math.Random rand;
-
-main() {
-  rand = new Math.Random();
-  smokeTest();
-  exactTest();
-  inexactTest();
-}
-
-/**
- * Test a few simple examples.
- */
-void smokeTest() {
-  // Non-const lists
-  Expect.equals([].toString(), '[]');
-  Expect.equals([1].toString(), '[1]');
-  Expect.equals(['Elvis'].toString(), '[Elvis]');
-  Expect.equals([null].toString(), '[null]');
-  Expect.equals([1, 2].toString(), '[1, 2]');
-  Expect.equals(['I', 'II'].toString(), '[I, II]');
-  Expect.equals(
-      [
-        [1, 2],
-        [3, 4],
-        [5, 6]
-      ].toString(),
-      '[[1, 2], [3, 4], [5, 6]]');
-
-  // Const lists
-  Expect.equals((const []).toString(), '[]');
-  Expect.equals((const [1]).toString(), '[1]');
-  Expect.equals((const ['Elvis']).toString(), '[Elvis]');
-  Expect.equals((const [null]).toString(), '[null]');
-  Expect.equals((const [1, 2]).toString(), '[1, 2]');
-  Expect.equals((const ['I', 'II']).toString(), '[I, II]');
-  Expect.equals(
-      (const [
-        const [1, 2],
-        const [3, 4],
-        const [5, 6]
-      ])
-          .toString(),
-      '[[1, 2], [3, 4], [5, 6]]');
-
-  // Non-const maps - Note that all keys are strings; the spec currently demands this
-  Expect.equals({}.toString(), '{}');
-  Expect.equals({'Elvis': 'King'}.toString(), '{Elvis: King}');
-  Expect.equals({'Elvis': null}.toString(), '{Elvis: null}');
-  Expect.equals({'I': 1, 'II': 2}.toString(), '{I: 1, II: 2}');
-  Expect.equals(
-      {
-        'X': {'I': 1, 'II': 2},
-        'Y': {'III': 3, 'IV': 4},
-        'Z': {'V': 5, 'VI': 6}
-      }.toString(),
-      '{X: {I: 1, II: 2}, Y: {III: 3, IV: 4}, Z: {V: 5, VI: 6}}');
-
-  // Const maps
-  Expect.equals(const {}.toString(), '{}');
-  Expect.equals(const {'Elvis': 'King'}.toString(), '{Elvis: King}');
-  Expect.equals({'Elvis': null}.toString(), '{Elvis: null}');
-  Expect.equals(const {'I': 1, 'II': 2}.toString(), '{I: 1, II: 2}');
-  Expect.equals(
-      const {
-        'X': const {'I': 1, 'II': 2},
-        'Y': const {'III': 3, 'IV': 4},
-        'Z': const {'V': 5, 'VI': 6}
-      }.toString(),
-      '{X: {I: 1, II: 2}, Y: {III: 3, IV: 4}, Z: {V: 5, VI: 6}}');
-}
-
-// SERIOUS "BASHER" TESTS
-
-/**
- * Generate a bunch of random collections (including Maps), and test that
- * there string form is as expected. The collections include collections
- * as elements, keys, and values, and include recursive references.
- *
- * This test restricts itself to collections with well-defined iteration
- * orders (i.e., no HashSet, HashMap).
- */
-void exactTest() {
-  for (int i = 0; i < NUM_TESTS; i++) {
-    // Choose a size from 0 to MAX_COLLECTION_SIZE, favoring larger sizes
-    int size =
-        Math.sqrt(random(MAX_COLLECTION_SIZE * MAX_COLLECTION_SIZE)).toInt();
-
-    StringBuffer stringRep = new StringBuffer();
-    Object o = randomCollection(size, stringRep, exact: true);
-    print(stringRep);
-    print(o);
-    Expect.equals(o.toString(), stringRep.toString());
-  }
-}
-
-/**
- * Generate a bunch of random collections (including Maps), and test that
- * there string form is as expected. The collections include collections
- * as elements, keys, and values, and include recursive references.
- *
- * This test includes collections with ill-defined iteration orders (i.e.,
- * HashSet, HashMap). As a consequence, it can't use equality tests on the
- * string form. Instead, it performs equality tests on their "alphagrams."
- * This might allow false positives, but it does give a fair amount of
- * confidence.
- */
-void inexactTest() {
-  for (int i = 0; i < NUM_TESTS; i++) {
-    // Choose a size from 0 to MAX_COLLECTION_SIZE, favoring larger sizes
-    int size =
-        Math.sqrt(random(MAX_COLLECTION_SIZE * MAX_COLLECTION_SIZE)).toInt();
-
-    StringBuffer stringRep = new StringBuffer();
-    Object o = randomCollection(size, stringRep, exact: false);
-    print(stringRep);
-    print(o);
-    Expect.equals(alphagram(o.toString()), alphagram(stringRep.toString()));
-  }
-}
-
-/**
- * Return a random collection (or Map) of the specified size, placing its
- * string representation into the given string buffer.
- *
- * If exact is true, the returned collections will not be, and will not contain
- * a collection with ill-defined iteration order (i.e., a HashSet or HashMap).
- */
-Object randomCollection(int size, StringBuffer stringRep, {bool exact}) {
-  return randomCollectionHelper(size, exact, stringRep, []);
-}
-
-/**
- * Return a random collection (or map) of the specified size, placing its
- * string representation into the given string buffer. The beingMade
- * parameter is a list of collections currently under construction, i.e.,
- * candidates for recursive references.
- *
- * If exact is true, the returned collections will not be, and will not contain
- * a collection with ill-defined iteration order (i.e., a HashSet or HashMap).
- */
-Object randomCollectionHelper(
-    int size, bool exact, StringBuffer stringRep, List beingMade) {
-  double interfaceFrac = rand.nextDouble();
-
-  if (exact) {
-    if (interfaceFrac < 1 / 3) {
-      return randomList(size, exact, stringRep, beingMade);
-    } else if (interfaceFrac < 2 / 3) {
-      return randomQueue(size, exact, stringRep, beingMade);
-    } else {
-      return randomMap(size, exact, stringRep, beingMade);
-    }
-  } else {
-    if (interfaceFrac < 1 / 4) {
-      return randomList(size, exact, stringRep, beingMade);
-    } else if (interfaceFrac < 2 / 4) {
-      return randomQueue(size, exact, stringRep, beingMade);
-    } else if (interfaceFrac < 3 / 4) {
-      return randomSet(size, exact, stringRep, beingMade);
-    } else {
-      return randomMap(size, exact, stringRep, beingMade);
-    }
-  }
-}
-
-/**
- * Return a random List of the specified size, placing its string
- * representation into the given string buffer. The beingMade
- * parameter is a list of collections currently under construction, i.e.,
- * candidates for recursive references.
- *
- * If exact is true, the returned collections will not be, and will not contain
- * a collection with ill-defined iteration order (i.e., a HashSet or HashMap).
- */
-List randomList(int size, bool exact, StringBuffer stringRep, List beingMade) {
-  return populateRandomCollection(size, exact, stringRep, beingMade, [], "[]");
-}
-
-/**
- * Like randomList, but returns a queue.
- */
-Queue randomQueue(
-    int size, bool exact, StringBuffer stringRep, List beingMade) {
-  return populateRandomCollection(
-      size, exact, stringRep, beingMade, new Queue(), "{}");
-}
-
-/**
- * Like randomList, but returns a Set.
- */
-Set randomSet(int size, bool exact, StringBuffer stringRep, List beingMade) {
-  // Until we have LinkedHashSet, method will only be called with exact==true
-  return populateRandomSet(size, exact, stringRep, beingMade, new Set());
-}
-
-/**
- * Like randomList, but returns a map.
- */
-Map randomMap(int size, bool exact, StringBuffer stringRep, List beingMade) {
-  if (exact) {
-    return populateRandomMap(
-        size, exact, stringRep, beingMade, new LinkedHashMap());
-  } else {
-    return populateRandomMap(size, exact, stringRep, beingMade,
-        randomBool() ? new Map() : new LinkedHashMap());
-  }
-}
-
-/**
- * Populates the given empty collection with elements, emitting the string
- * representation of the collection to stringRep.  The beingMade parameter is
- * a list of collections currently under construction, i.e., candidates for
- * recursive references.
- *
- * If exact is true, the elements of the returned collections will not be,
- * and will not contain a collection with ill-defined iteration order
- * (i.e., a HashSet or HashMap).
- */
-populateRandomCollection(int size, bool exact, StringBuffer stringRep,
-    List beingMade, var coll, String delimiters) {
-  beingMade.add(coll);
-  int start = stringRep.length;
-
-  stringRep.write(delimiters[0]);
-
-  List indices = [];
-  for (int i = 0; i < size; i++) {
-    indices.add(stringRep.length);
-    if (i != 0) stringRep.write(', ');
-    coll.add(randomElement(random(size), exact, stringRep, beingMade));
-  }
-  if (size > 5 && delimiters == "()") {
-    const int MAX_LENGTH = 80;
-    const int MIN_COUNT = 3;
-    const int MAX_COUNT = 100;
-    // It's an iterable, it may omit some elements.
-    int end = stringRep.length;
-    if (size > MAX_COUNT) {
-      // Last two elements are also omitted, just find the first three or
-      // first 60 characters.
-      for (int i = MIN_COUNT; i < size; i++) {
-        int startIndex = indices[i];
-        if (startIndex - start > MAX_LENGTH - 6) {
-          // Limit - ", ...)".length.
-          String prefix = stringRep.toString().substring(0, startIndex);
-          stringRep.clear();
-          stringRep.write(prefix);
-          stringRep.write(", ...");
-        }
-      }
-    } else if (stringRep.length - start > MAX_LENGTH - 1) {
-      // 80 - ")".length.
-      // Last two elements are always included. Middle ones may be omitted.
-      int lastTwoLength = end - indices[indices.length - 2];
-      // Try to find first element to omit.
-      for (int i = 3; i <= size - 3; i++) {
-        int elementEnd = indices[i + 1];
-        int lengthAfter = elementEnd - start;
-        int ellipsisSize = 5; // ", ...".length
-        if (i == size - 3) ellipsisSize = 0; // No ellipsis if we hit the end.
-        if (lengthAfter + ellipsisSize + lastTwoLength > MAX_LENGTH - 1) {
-          // Omit this element and everything up to the last two.
-          int elementStart = indices[i];
-          // Rewrite string buffer by copying it out, clearing, and putting
-          // the parts back in.
-          String buffer = stringRep.toString();
-          String prefix = buffer.substring(0, elementStart);
-          String suffix = buffer.substring(end - lastTwoLength, end);
-          stringRep.clear();
-          stringRep.write(prefix);
-          stringRep.write(", ...");
-          stringRep.write(suffix);
-          break;
-        }
-      }
-    }
-  }
-
-  stringRep.write(delimiters[1]);
-  beingMade.removeLast();
-  return coll;
-}
-
-/** Like populateRandomCollection, but for sets (elements must be hashable) */
-Set populateRandomSet(
-    int size, bool exact, StringBuffer stringRep, List beingMade, Set set) {
-  stringRep.write('{');
-
-  for (int i = 0; i < size; i++) {
-    if (i != 0) stringRep.write(', ');
-    set.add(i);
-    stringRep.write(i);
-  }
-
-  stringRep.write('}');
-  return set;
-}
-
-/** Like populateRandomCollection, but for maps. */
-Map populateRandomMap(
-    int size, bool exact, StringBuffer stringRep, List beingMade, Map map) {
-  beingMade.add(map);
-  stringRep.write('{');
-
-  for (int i = 0; i < size; i++) {
-    if (i != 0) stringRep.write(', ');
-
-    int key = i; // Ensures no duplicates
-    stringRep.write(key);
-    stringRep.write(': ');
-    Object val = randomElement(random(size), exact, stringRep, beingMade);
-    map[key] = val;
-  }
-
-  stringRep.write('}');
-  beingMade.removeLast();
-  return map;
-}
-
-/**
- * Generates a random element which can be an int, a collection, or a map,
- * and emits it to StringRep. The beingMade parameter is a list of collections
- * currently under construction, i.e., candidates for recursive references.
- *
- * If exact is true, the returned element will not be, and will not contain
- * a collection with ill-defined iteration order (i.e., a HashSet or HashMap).
- */
-Object randomElement(
-    int size, bool exact, StringBuffer stringRep, List beingMade) {
-  Object result;
-  double elementTypeFrac = rand.nextDouble();
-  if (elementTypeFrac < 1 / 3) {
-    result = random(1000);
-    stringRep.write(result);
-  } else if (elementTypeFrac < 2 / 3) {
-    // Element is a random (new) collection
-    result = randomCollectionHelper(size, exact, stringRep, beingMade);
-  } else {
-    // Element is a random recursive ref
-    result = beingMade[random(beingMade.length)];
-    if (result is List) {
-      stringRep.write('[...]');
-    } else if (result is Set || result is Map || result is Queue) {
-      stringRep.write('{...}');
-    } else {
-      stringRep.write('(...)');
-    }
-  }
-  return result;
-}
-
-/** Returns a random int on [0, max) */
-int random(int max) {
-  return rand.nextInt(max);
-}
-
-/** Returns a random boolean value. */
-bool randomBool() {
-  return rand.nextBool();
-}
-
-/** Returns the alphabetized characters in a string. */
-String alphagram(String s) {
-  // Calling [toList] to convert unmodifiable list to normal list.
-  List<int> chars = s.codeUnits.toList();
-  chars.sort((int a, int b) => a - b);
-  return new String.fromCharCodes(chars);
-}
diff --git a/tests/corelib_2/compare_to2_test.dart b/tests/corelib_2/compare_to2_test.dart
deleted file mode 100644
index 6fd1c3b151f..00000000000
--- a/tests/corelib_2/compare_to2_test.dart
+++ /dev/null
@@ -1,98 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing Math.min and Math.max.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-negate(x) => -x;
-
-main() {
-  // Test matrix:
-  var minNonZero = 5e-324;
-  var maxDenormal = 2.225073858507201e-308;
-  var minNormal = 2.2250738585072014e-308;
-  var maxFraction = 0.9999999999999999;
-  var minAbove1 = 1.0000000000000002;
-  var maxNonInt = 4503599627370495.5;
-  var maxNonIntFloorAsInt = maxNonInt.floor();
-  var maxNonIntFloorAsDouble = maxNonIntFloorAsInt.toDouble();
-  var maxExactIntAsDouble = 9007199254740992.0;
-  var maxExactIntAsInt = 9007199254740992;
-  var two53 = 1 << 53; // Same as maxExactIntAsInt.
-  var two53p1 = two53 + 1;
-  var maxFiniteAsDouble = 1.7976931348623157e+308;
-  var maxFiniteAsInt = maxFiniteAsDouble.truncate();
-  var inf = double.infinity;
-  var nan = double.nan;
-  var mnan = negate(nan);
-  var minInt64 = -0x8000000000000000;
-  var minInt64AsDouble = minInt64.toDouble();
-  var maxInt64 = 0x7fffffffffffffff;
-  var maxInt64AsDouble = maxInt64.toDouble(); // 1 << 63
-  var matrix = [
-    -inf,
-    -maxFiniteAsDouble,
-    [minInt64, minInt64AsDouble],
-    [-maxInt64, -maxFiniteAsInt],
-    -two53p1,
-    [-two53, -maxExactIntAsInt, -maxExactIntAsDouble],
-    -maxNonInt,
-    [-maxNonIntFloorAsDouble, -maxNonIntFloorAsInt],
-    [-499.0, -499],
-    -minAbove1,
-    [-1.0, -1],
-    -maxFraction,
-    -minNormal,
-    -maxDenormal,
-    -minNonZero,
-    -0.0,
-    [0, 0, 0],
-    minNonZero,
-    maxDenormal,
-    minNormal,
-    maxFraction,
-    [1.0, 1],
-    minAbove1,
-    [499.0, 499],
-    [maxNonIntFloorAsDouble, maxNonIntFloorAsInt],
-    maxNonInt,
-    [two53, maxExactIntAsInt, maxExactIntAsDouble],
-    two53p1,
-    [maxInt64, maxFiniteAsInt],
-    maxInt64AsDouble,
-    maxFiniteAsDouble,
-    inf,
-    [nan, mnan],
-  ];
-
-  check(left, right, expectedResult) {
-    if (left is List) {
-      for (var x in left) check(x, right, expectedResult);
-      return;
-    }
-    if (right is List) {
-      for (var x in right) check(left, x, expectedResult);
-      return;
-    }
-    int actual = left.compareTo(right);
-    Expect.equals(
-        expectedResult,
-        actual,
-        "($left).compareTo($right) failed "
-        "(should have been $expectedResult, was $actual");
-  }
-
-  for (int i = 0; i < matrix.length; i++) {
-    for (int j = 0; j < matrix.length; j++) {
-      var left = matrix[i];
-      var right = matrix[j];
-      if (left is List) {
-        check(left, left, 0);
-      }
-      check(left, right, i == j ? 0 : (i < j ? -1 : 1));
-    }
-  }
-}
diff --git a/tests/corelib_2/compare_to_test.dart b/tests/corelib_2/compare_to_test.dart
deleted file mode 100644
index a7e5b96475e..00000000000
--- a/tests/corelib_2/compare_to_test.dart
+++ /dev/null
@@ -1,138 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing Math.min and Math.max.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-negate(x) => -x;
-
-main() {
-  // Test matrix:
-  // -inf < -499.0 == -499 < -0.0 < 0.0 == 0 < 499.0 == 499 < +inf < -NaN, NaN.
-  var inf = double.infinity;
-  var nan = double.nan;
-  var mnan = negate(nan);
-
-  Expect.equals(0, (-inf).compareTo(-inf));
-  Expect.equals(-1, (-inf).compareTo(-499.0));
-  Expect.equals(-1, (-inf).compareTo(-499));
-  Expect.equals(-1, (-inf).compareTo(-0.0));
-  Expect.equals(-1, (-inf).compareTo(0));
-  Expect.equals(-1, (-inf).compareTo(0.0));
-  Expect.equals(-1, (-inf).compareTo(499.0));
-  Expect.equals(-1, (-inf).compareTo(499));
-  Expect.equals(-1, (-inf).compareTo(inf));
-  Expect.equals(-1, (-inf).compareTo(nan));
-  Expect.equals(-1, (-inf).compareTo(mnan));
-
-  Expect.equals(1, (-499.0).compareTo(-inf));
-  Expect.equals(0, (-499.0).compareTo(-499.0));
-  Expect.equals(0, (-499.0).compareTo(-499));
-  Expect.equals(-1, (-499.0).compareTo(-0.0));
-  Expect.equals(-1, (-499.0).compareTo(0));
-  Expect.equals(-1, (-499.0).compareTo(0.0));
-  Expect.equals(-1, (-499.0).compareTo(499.0));
-  Expect.equals(-1, (-499.0).compareTo(499));
-  Expect.equals(-1, (-499.0).compareTo(inf));
-  Expect.equals(-1, (-499.0).compareTo(nan));
-  Expect.equals(-1, (-499.0).compareTo(mnan));
-
-  Expect.equals(1, (-499).compareTo(-inf));
-  Expect.equals(0, (-499).compareTo(-499.0));
-  Expect.equals(0, (-499).compareTo(-499));
-  Expect.equals(-1, (-499).compareTo(-0.0));
-  Expect.equals(-1, (-499).compareTo(0));
-  Expect.equals(-1, (-499).compareTo(0.0));
-  Expect.equals(-1, (-499).compareTo(499.0));
-  Expect.equals(-1, (-499).compareTo(499));
-  Expect.equals(-1, (-499).compareTo(inf));
-  Expect.equals(-1, (-499).compareTo(nan));
-  Expect.equals(-1, (-499).compareTo(mnan));
-
-  Expect.equals(1, (-0.0).compareTo(-inf));
-  Expect.equals(1, (-0.0).compareTo(-499.0));
-  Expect.equals(1, (-0.0).compareTo(-499));
-  Expect.equals(0, (-0.0).compareTo(-0.0));
-  Expect.equals(-1, (-0.0).compareTo(0));
-  Expect.equals(-1, (-0.0).compareTo(0.0));
-  Expect.equals(-1, (-0.0).compareTo(499.0));
-  Expect.equals(-1, (-0.0).compareTo(499));
-  Expect.equals(-1, (-0.0).compareTo(inf));
-  Expect.equals(-1, (-0.0).compareTo(nan));
-  Expect.equals(-1, (-0.0).compareTo(mnan));
-
-  Expect.equals(1, (0).compareTo(-inf));
-  Expect.equals(1, (0).compareTo(-499.0));
-  Expect.equals(1, (0).compareTo(-499));
-  Expect.equals(1, (0).compareTo(-0.0));
-  Expect.equals(0, (0).compareTo(0));
-  Expect.equals(0, (0).compareTo(0.0));
-  Expect.equals(-1, (0).compareTo(499.0));
-  Expect.equals(-1, (0).compareTo(499));
-  Expect.equals(-1, (0).compareTo(inf));
-  Expect.equals(-1, (0).compareTo(nan));
-  Expect.equals(-1, (0).compareTo(mnan));
-
-  Expect.equals(1, (0.0).compareTo(-inf));
-  Expect.equals(1, (0.0).compareTo(-499.0));
-  Expect.equals(1, (0.0).compareTo(-499));
-  Expect.equals(1, (0.0).compareTo(-0.0));
-  Expect.equals(0, (0.0).compareTo(0));
-  Expect.equals(0, (0.0).compareTo(0.0));
-  Expect.equals(-1, (0.0).compareTo(499.0));
-  Expect.equals(-1, (0.0).compareTo(499));
-  Expect.equals(-1, (0.0).compareTo(inf));
-  Expect.equals(-1, (0.0).compareTo(nan));
-  Expect.equals(-1, (0.0).compareTo(mnan));
-
-  Expect.equals(1, (499.0).compareTo(-inf));
-  Expect.equals(1, (499.0).compareTo(-499.0));
-  Expect.equals(1, (499.0).compareTo(-499));
-  Expect.equals(1, (499.0).compareTo(-0.0));
-  Expect.equals(1, (499.0).compareTo(0));
-  Expect.equals(1, (499.0).compareTo(0.0));
-  Expect.equals(0, (499.0).compareTo(499.0));
-  Expect.equals(0, (499.0).compareTo(499));
-  Expect.equals(-1, (499.0).compareTo(inf));
-  Expect.equals(-1, (499.0).compareTo(nan));
-  Expect.equals(-1, (499.0).compareTo(mnan));
-
-  Expect.equals(1, (499).compareTo(-inf));
-  Expect.equals(1, (499).compareTo(-499.0));
-  Expect.equals(1, (499).compareTo(-499));
-  Expect.equals(1, (499).compareTo(-0.0));
-  Expect.equals(1, (499).compareTo(0));
-  Expect.equals(1, (499).compareTo(0.0));
-  Expect.equals(0, (499).compareTo(499.0));
-  Expect.equals(0, (499).compareTo(499));
-  Expect.equals(-1, (499).compareTo(inf));
-  Expect.equals(-1, (499).compareTo(nan));
-  Expect.equals(-1, (499).compareTo(mnan));
-
-  Expect.equals(1, inf.compareTo(-inf));
-  Expect.equals(1, inf.compareTo(-499.0));
-  Expect.equals(1, inf.compareTo(-499));
-  Expect.equals(1, inf.compareTo(-0.0));
-  Expect.equals(1, inf.compareTo(0));
-  Expect.equals(1, inf.compareTo(0.0));
-  Expect.equals(1, inf.compareTo(499.0));
-  Expect.equals(1, inf.compareTo(499));
-  Expect.equals(0, inf.compareTo(inf));
-  Expect.equals(-1, inf.compareTo(nan));
-  Expect.equals(-1, inf.compareTo(mnan));
-
-  Expect.equals(1, nan.compareTo(-inf));
-  Expect.equals(1, nan.compareTo(-499.0));
-  Expect.equals(1, nan.compareTo(-499));
-  Expect.equals(1, nan.compareTo(-0.0));
-  Expect.equals(1, nan.compareTo(0));
-  Expect.equals(1, nan.compareTo(0.0));
-  Expect.equals(1, nan.compareTo(499.0));
-  Expect.equals(1, nan.compareTo(499));
-  Expect.equals(1, nan.compareTo(inf));
-  Expect.equals(0, nan.compareTo(nan));
-  Expect.equals(0, nan.compareTo(mnan));
-}
diff --git a/tests/corelib_2/const_list_literal_test.dart b/tests/corelib_2/const_list_literal_test.dart
deleted file mode 100644
index 2b02188be85..00000000000
--- a/tests/corelib_2/const_list_literal_test.dart
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that a final list literal is not expandable nor modifiable.
-
-class ConstListLiteralTest {
-  static void testMain() {
-    var list = const [4, 2, 3];
-    Expect.equals(3, list.length);
-
-    var exception = null;
-    try {
-      list.add(4);
-    } on UnsupportedError catch (e) {
-      exception = e;
-    }
-    Expect.equals(true, exception != null);
-    Expect.equals(3, list.length);
-    exception = null;
-
-    exception = null;
-    try {
-      list.addAll([4, 5]);
-    } on UnsupportedError catch (e) {
-      exception = e;
-    }
-    Expect.equals(true, exception != null);
-    Expect.equals(3, list.length);
-
-    exception = null;
-    try {
-      list[0] = 0;
-    } on UnsupportedError catch (e) {
-      exception = e;
-    }
-    Expect.equals(true, exception != null);
-    Expect.equals(3, list.length);
-
-    exception = null;
-    try {
-      list.sort((a, b) => a - b);
-    } on UnsupportedError catch (e) {
-      exception = e;
-    }
-    Expect.equals(true, exception != null);
-    Expect.equals(3, list.length);
-    Expect.equals(4, list[0]);
-    Expect.equals(2, list[1]);
-    Expect.equals(3, list[2]);
-
-    exception = null;
-    try {
-      list.setRange(0, 1, [1], 0);
-    } on UnsupportedError catch (e) {
-      exception = e;
-    }
-    Expect.equals(true, exception != null);
-    Expect.equals(3, list.length);
-    Expect.equals(4, list[0]);
-    Expect.equals(2, list[1]);
-    Expect.equals(3, list[2]);
-
-    // Note: the next check is a regression test for dart2js. The immutable list
-    // overrides the 'length' property of List, but relies on using the native
-    // 'forEach' construct in Array. This test ensures that our strategy works
-    // correctly.
-    int x = 0;
-    list.forEach((e) {
-      x += e;
-    });
-    Expect.equals(9, x);
-  }
-}
-
-main() {
-  ConstListLiteralTest.testMain();
-}
diff --git a/tests/corelib_2/const_list_remove_range_test.dart b/tests/corelib_2/const_list_remove_range_test.dart
deleted file mode 100644
index 320cbde739d..00000000000
--- a/tests/corelib_2/const_list_remove_range_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  testImmutable(const []);
-  testImmutable(const [1]);
-  testImmutable(const [1, 2]);
-}
-
-testImmutable(var list) {
-  Expect.throwsUnsupportedError(() => list.removeRange(0, 0));
-  Expect.throwsUnsupportedError(() => list.removeRange(0, 1));
-  Expect.throwsUnsupportedError(() => list.removeRange(-1, 1));
-}
diff --git a/tests/corelib_2/const_list_set_range_test.dart b/tests/corelib_2/const_list_set_range_test.dart
deleted file mode 100644
index 853ff788180..00000000000
--- a/tests/corelib_2/const_list_set_range_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  testImmutable(const []);
-  testImmutable(const [1]);
-  testImmutable(const [1, 2]);
-}
-
-testImmutable(List list) {
-  Expect.throwsUnsupportedError(() => list.setRange(0, 0, const []));
-  Expect.throwsUnsupportedError(() => list.setRange(0, 1, const [], 1));
-  Expect.throwsUnsupportedError(() => list.setRange(0, 1, const []));
-  Expect.throwsUnsupportedError(() => list.setRange(0, 0, []));
-  Expect.throwsUnsupportedError(() => list.setRange(0, 1, [], 1));
-  Expect.throwsUnsupportedError(() => list.setRange(0, 1, []));
-  Expect.throwsUnsupportedError(() => list.setRange(0, 0, const [1]));
-  Expect.throwsUnsupportedError(() => list.setRange(0, 1, const [1]));
-  Expect.throwsUnsupportedError(() => list.setRange(0, 0, [1]));
-  Expect.throwsUnsupportedError(() => list.setRange(0, 1, [1]));
-  Expect.throwsUnsupportedError(() => list.setRange(0, 1, [1], 1));
-}
diff --git a/tests/corelib_2/core_runtime_types_static_test.dart b/tests/corelib_2/core_runtime_types_static_test.dart
deleted file mode 100644
index 39a90e6d17f..00000000000
--- a/tests/corelib_2/core_runtime_types_static_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-/**
- * Verify static compilation errors on strings and lists.
- */
-class CoreStaticTypesTest {
-  static testMain() {
-    testStringOperators();
-    testStringMethods();
-    testListOperators();
-  }
-
-  static testStringOperators() {
-    var q = "abcdef";
-    q['hello'];
-    //^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-    // [cfe] A value of type 'String' can't be assigned to a variable of type 'int'.
-    q[0] = 'x';
-//   ^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-// [cfe] The operator '[]=' isn't defined for the class 'String'.
-  }
-
-  static testStringMethods() {
-    var s = "abcdef";
-    s.startsWith(1);
-    //           ^
-    // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-    // [cfe] The argument type 'int' can't be assigned to the parameter type 'Pattern'.
-    s.endsWith(1);
-    //         ^
-    // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-    // [cfe] The argument type 'int' can't be assigned to the parameter type 'String'.
-  }
-
-  static testListOperators() {
-    var a = [1, 2, 3, 4];
-    a['0'];
-    //^^^
-    // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-    // [cfe] A value of type 'String' can't be assigned to a variable of type 'int'.
-    a['0'] = 99;
-    //^^^
-    // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-    // [cfe] A value of type 'String' can't be assigned to a variable of type 'int'.
-  }
-}
-
-main() {
-  CoreStaticTypesTest.testMain();
-}
diff --git a/tests/corelib_2/core_runtime_types_test.dart b/tests/corelib_2/core_runtime_types_test.dart
deleted file mode 100644
index 28d73adaebc..00000000000
--- a/tests/corelib_2/core_runtime_types_test.dart
+++ /dev/null
@@ -1,337 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-/**
- * A test of simple runtime behavior on numbers, strings and lists with
- * a focus on both correct behavior and runtime errors.
- *
- * This file is written to use minimal type declarations to match a
- * typical dynamic language coding style.
- */
-class CoreRuntimeTypesTest {
-  static testMain() {
-    testBooleanOperators();
-    testRationalOperators();
-    testIntegerOperators();
-    testOperatorErrors();
-    testRationalMethods();
-    testIntegerMethods();
-    testStringOperators();
-    testStringMethods();
-    testListOperators();
-    testListMethods();
-    testMapOperators();
-    testMapMethods();
-    testLiterals();
-    testDateMethods();
-  }
-
-  static assertEquals(a, b) {
-    Expect.equals(b, a);
-  }
-
-  static assertListEquals(List a, List b) {
-    Expect.equals(b.length, a.length);
-    for (int i = 0; i < a.length; i++) {
-      Expect.equals(b[i], a[i]);
-    }
-  }
-
-  static assertListContains(List a, List b) {
-    a.sort((x, y) => x.compareTo(y));
-    b.sort((x, y) => x.compareTo(y));
-    assertListEquals(a, b);
-  }
-
-  static assertTypeError(void f(), [String message]) {
-    Expect.throws<Error>(
-        f,
-        (exception) =>
-            (exception is TypeError) ||
-            (exception is AssertionError) ||
-            (exception is NoSuchMethodError) ||
-            (exception is ArgumentError),
-        message);
-  }
-
-  static testBooleanOperators() {
-    var x = true, y = false;
-    assertEquals(x, true);
-    assertEquals(y, false);
-    assertEquals(x, !y);
-    assertEquals(!x, y);
-  }
-
-  static testRationalOperators() {
-    var x = 10, y = 20;
-    assertEquals(x + y, 30);
-    assertEquals(x - y, -10);
-    assertEquals(x * y, 200);
-    assertEquals(x / y, 0.5);
-    assertEquals(x ~/ y, 0);
-    assertEquals(x % y, 10);
-  }
-
-  static testIntegerOperators() {
-    var x = 18, y = 17;
-    assertEquals(x | y, 19);
-    assertEquals(x & y, 16);
-    assertEquals(x ^ y, 3);
-    assertEquals(2 >> 1, 1);
-    assertEquals(1 << 1, 2);
-  }
-
-  static testOperatorErrors() {
-    var objs = [
-      1,
-      '2',
-      [3],
-      null,
-      true,
-      new Map()
-    ];
-    for (var i = 0; i < objs.length; i++) {
-      for (var j = i + 1; j < objs.length; j++) {
-        testBinaryOperatorErrors(objs[i], objs[j]);
-        testBinaryOperatorErrors(objs[j], objs[i]);
-      }
-      testUnaryOperatorErrors(objs[i]);
-    }
-  }
-
-  static testBinaryOperatorErrors(x, y) {
-    assertTypeError(() {
-      x + y;
-    }, "$x+$y");
-    assertTypeError(() {
-      x - y;
-    }, "$x-$y");
-    // String.* is the only non-same-type binary operator we have.
-    if (x is! String && y is! int) {
-      assertTypeError(() {
-        x * y;
-      }, "$x*$y");
-    }
-    assertTypeError(() {
-      x / y;
-    }, "$x/$y");
-    assertTypeError(() {
-      x | y;
-    }, "$x|$y");
-    assertTypeError(() {
-      x ^ y;
-    }, "$x^$y");
-    assertTypeError(() {
-      x & y;
-    }, "$x&$y");
-    assertTypeError(() {
-      x << y;
-    }, "$x<<$y");
-    assertTypeError(() {
-      x >> y;
-    }, "$x>>$y");
-    assertTypeError(() {
-      x ~/ y;
-    }, "$x~/$y");
-    assertTypeError(() {
-      x % y;
-    }, "$x%$y");
-
-    testComparisonOperatorErrors(x, y);
-  }
-
-  static testComparisonOperatorErrors(x, y) {
-    assertEquals(x == y, false);
-    assertEquals(x != y, true);
-    assertTypeError(() {
-      x < y;
-    }, "$x<$y");
-    assertTypeError(() {
-      x <= y;
-    }, "$x<=$y");
-    assertTypeError(() {
-      x > y;
-    }, "$x>$y");
-    assertTypeError(() {
-      x >= y;
-    }, "$x>=$y");
-  }
-
-  static testUnaryOperatorErrors(x) {
-    if (x is! int) {
-      assertTypeError(() {
-        ~x;
-      }, "~$x");
-    }
-    if (x is! num) {
-      assertTypeError(() {
-        -x;
-      }, "-$x");
-    }
-    if (x is! bool) {
-      assertTypeError(() {
-        !x;
-      }, "!$x");
-    }
-  }
-
-  static testRationalMethods() {
-    var x = 10.6;
-    assertEquals(x.abs(), 10.6);
-    assertEquals((-x).abs(), 10.6);
-    assertEquals(x.round(), 11);
-    assertEquals(x.floor(), 10);
-    assertEquals(x.ceil(), 11);
-  }
-
-  // TODO(jimhug): Determine correct behavior for mixing ints and floats.
-  static testIntegerMethods() {
-    var y = 9;
-    assertEquals(y.isEven, false);
-    assertEquals(y.isOdd, true);
-    assertEquals(y.toRadixString(2), '1001');
-    assertEquals(y.toRadixString(3), '100');
-    assertEquals(y.toRadixString(16), '9');
-    assertEquals((0).toRadixString(16), '0');
-    try {
-      y.toRadixString(0);
-      Expect.fail("Illegal radix 0 accepted.");
-    } catch (e) {}
-    try {
-      y.toRadixString(-1);
-      Expect.fail("Illegal radix -1 accepted.");
-    } catch (e) {}
-  }
-
-  static testStringOperators() {
-    var s = "abcdef";
-    assertEquals(s, "abcdef");
-    assertEquals(s.codeUnitAt(0), 97);
-    assertEquals(s[0], 'a');
-    assertEquals(s.length, 6);
-    assertTypeError(() {
-      s[null];
-    });
-  }
-
-  // TODO(jimhug): Fill out full set of string methods.
-  static testStringMethods() {
-    var s = "abcdef";
-    assertEquals(s.isEmpty, false);
-    assertEquals(s.isNotEmpty, true);
-    assertEquals(s.startsWith("abc"), true);
-    assertEquals(s.endsWith("def"), true);
-    assertEquals(s.startsWith("aa"), false);
-    assertEquals(s.endsWith("ff"), false);
-    assertEquals(s.contains('cd', 0), true);
-    assertEquals(s.contains('cd', 2), true);
-    assertEquals(s.contains('cd', 3), false);
-    assertEquals(s.indexOf('cd', 2), 2);
-    assertEquals(s.indexOf('cd', 3), -1);
-  }
-
-  static testListOperators() {
-    var a = [1, 2, 3, 4];
-    assertEquals(a[0], 1);
-    a[0] = 42;
-    assertEquals(a[0], 42);
-    assertEquals(a.length, 4);
-  }
-
-  // TODO(jimhug): Fill out full set of list methods.
-  static testListMethods() {
-    var a = [1, 2, 3, 4];
-    assertEquals(a.isEmpty, false);
-    assertEquals(a.length, 4);
-    var exception = null;
-    a.clear();
-    assertEquals(a.length, 0);
-  }
-
-  static testMapOperators() {
-    var d = new Map();
-    d['a'] = 1;
-    d['b'] = 2;
-    assertEquals(d['a'], 1);
-    assertEquals(d['b'], 2);
-    assertEquals(d['c'], null);
-  }
-
-  static testMapMethods() {
-    var d = new Map();
-    d['a'] = 1;
-    d['b'] = 2;
-    assertEquals(d.containsValue(2), true);
-    assertEquals(d.containsValue(3), false);
-    assertEquals(d.containsKey('a'), true);
-    assertEquals(d.containsKey('c'), false);
-    assertEquals(d.keys.length, 2);
-    assertEquals(d.values.length, 2);
-
-    assertEquals(d.remove('c'), null);
-    assertEquals(d.remove('b'), 2);
-    assertEquals(d.keys.single, 'a');
-    assertEquals(d.values.single, 1);
-
-    d['c'] = 3;
-    d['f'] = 4;
-    assertEquals(d.keys.length, 3);
-    assertEquals(d.values.length, 3);
-    assertListContains(d.keys.toList(), ['a', 'c', 'f']);
-    assertListContains(d.values.toList(), [1, 3, 4]);
-
-    var count = 0;
-    d.forEach((key, value) {
-      count++;
-      assertEquals(value, d[key]);
-    });
-    assertEquals(count, 3);
-
-    d = {'a': 1, 'b': 2};
-    assertEquals(d.containsValue(2), true);
-    assertEquals(d.containsValue(3), false);
-    assertEquals(d.containsKey('a'), true);
-    assertEquals(d.containsKey('c'), false);
-    assertEquals(d.keys.length, 2);
-    assertEquals(d.values.length, 2);
-
-    d['g'] = null;
-    assertEquals(d.containsKey('g'), true);
-    assertEquals(d['g'], null);
-  }
-
-  static testDateMethods() {
-    var msec = 115201000;
-    var d = new DateTime.fromMillisecondsSinceEpoch(msec, isUtc: true);
-    assertEquals(d.second, 1);
-    assertEquals(d.year, 1970);
-
-    d = new DateTime.now();
-    assertEquals(d.year >= 1970, true);
-  }
-
-  static testLiterals() {
-    true.toString();
-    1.0.toString();
-    .5.toString();
-    1.toString();
-    if (false) {
-      // Depends on http://b/4198808.
-      null.toString();
-    }
-    '${null}'.toString();
-    '${true}'.toString();
-    '${false}'.toString();
-    ''.toString();
-    ''.endsWith('');
-  }
-}
-
-main() {
-  CoreRuntimeTypesTest.testMain();
-}
diff --git a/tests/corelib_2/corelib_2.status b/tests/corelib_2/corelib_2.status
deleted file mode 100644
index 3303dc8c2bf..00000000000
--- a/tests/corelib_2/corelib_2.status
+++ /dev/null
@@ -1,77 +0,0 @@
-# Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-
-bigint_parse_radix_test/3: Slow # Issue http://dartbug.com/47050
-bigint_test: Pass, Slow
-
-[ $builder_tag == obfuscated ]
-apply_generic_function_test: SkipByDesign # Function.apply with named args
-apply_test: Skip # Uses new Symbol via symbolMapToStringMap helper
-dynamic_nosuchmethod_test: SkipByDesign # Expects names in NSM
-nsm_invocation_test: SkipByDesign # Relies on non-obfuscated symbols
-symbol_test: SkipByDesign # Relies on non-obfuscated symbols
-type_tostring_test: SkipByDesign # Expects names in Type.toString()
-
-[ $compiler == dartkp ]
-bigint_parse_radix_test: Slow, Pass # --no_intrinsify
-bigint_test/03: SkipSlow # --no_intrinsify
-bigint_test/15: SkipSlow # --no_intrinsify
-
-[ $compiler == ddc ]
-bigint_test/03: SkipSlow # modPow is very slow
-bigint_test/15: SkipSlow # modPow is very slow
-list_concurrent_modify_self_test: SkipSlow # missing check causes list to grow to whole heap
-regexp/lookbehind_test/01: Skip # Flaky in uncatchable way.  Issue 36280
-uri_parse_test: Slow, Pass
-uri_test: Slow, Pass
-
-[ $mode == debug ]
-regexp/pcre_test: Slow, Pass # Issue 22008
-
-[ $runtime != none ]
-string_runes_test: Skip # See breaking change #40674
-
-[ $system == android ]
-throw_half_surrogate_pair_test/*: Skip # Issue http://dartbug.com/42094
-
-[ $simulator ]
-bigint_parse_radix_test: Skip # Issue 31659
-bigint_test: Skip # Issue 31659
-
-[ $arch == x64 && $system == windows ]
-stopwatch_test: Skip # Flaky test due to expected performance behaviour.
-
-[ $compiler != dart2analyzer && $compiler != dart2js && $compiler != ddc ]
-bigint_js_test: SkipByDesign # JavaScript-specific test
-
-[ $compiler == dart2js && $runtime != none ]
-regexp/pcre_test: Slow, Pass # Issue 21593
-
-[ $compiler == dart2js && $runtime == safari ]
-date_time11_test: Skip # evades flake detection https://github.com/dart-lang/sdk/issues/50718
-local_date_time_test: Skip # evades flake detection https://github.com/dart-lang/sdk/issues/50718
-regexp/unicode-property-char-class_test: Skip # evades flake detection https://github.com/dart-lang/sdk/issues/50718
-regexp/unicode-property-invalid_test: Skip # evades flake detection https://github.com/dart-lang/sdk/issues/50718
-regexp/unicode-regexp-restricted-syntax_test: Skip # evades flake detection https://github.com/dart-lang/sdk/issues/50718
-
-[ $runtime != dart_precompiled && $runtime != vm ]
-reg_exp_receive_port_test: SkipByDesign # uses SendPort/ReceivePort
-
-[ $runtime != none && ($compiler == dart2js || $compiler == ddc) ]
-int_parse_with_limited_ints_test: SkipByDesign # Requires fixed-size int64 support.
-integer_arith_vm_test: SkipByDesign # Is a VM optimization test that requires int64 support.
-iterable_return_type_int64_test: SkipByDesign # Requires int64 support.
-typed_data_with_limited_ints_test: SkipByDesign # Requires fixed-size int64 support.
-
-[ $builder_tag == dwarf || $builder_tag == obfuscated ]
-error_stack_trace1_test: SkipByDesign # Relies on symbol names in stack traces.
-
-[ $runtime == dart_precompiled || $runtime == vm ]
-regexp/global_test: Skip # Issue 21709
-regexp/pcre_test: Slow, Pass
-
-[ $hot_reload || $hot_reload_rollback ]
-bigint_parse_radix_test: Skip # Issue 31659. Issue 34361.
-bigint_test: Skip # Issue 31659
-integer_parsed_mul_div_vm_test: Slow, Pass # Slow
diff --git a/tests/corelib_2/data_uri_test.dart b/tests/corelib_2/data_uri_test.dart
deleted file mode 100644
index ddff61425f9..00000000000
--- a/tests/corelib_2/data_uri_test.dart
+++ /dev/null
@@ -1,344 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "dart:convert";
-import "dart:typed_data";
-
-main() {
-  testMediaType();
-
-  testRoundTrip("");
-  testRoundTrip("a");
-  testRoundTrip("ab");
-  testRoundTrip("abc");
-  testRoundTrip("abcd");
-  testRoundTrip("Content with special%25 characters: # ? = % # ? = %");
-  testRoundTrip("blåbærgrød", utf8);
-  testRoundTrip("blåbærgrød", latin1);
-
-  testUriEquals("data:,abc?d");
-  testUriEquals("DATA:,ABC?D");
-  testUriEquals("data:,a%20bc?d");
-  testUriEquals("DATA:,A%20BC?D");
-  testUriEquals("data:,abc?d%23e"); // # must and will be is escaped.
-
-  // Test that UriData.uri normalizes path and query.
-
-  testUtf8Encoding("\u1000\uffff");
-  testBytes();
-  testInvalidCharacters();
-  testNormalization();
-  testErrors();
-}
-
-void testMediaType() {
-  for (var mimeType in ["", "text/plain", "Text/PLAIN", "text/javascript"]) {
-    for (var charset in ["", "US-ASCII", "UTF-8"]) {
-      for (var base64 in ["", ";base64"]) {
-        bool isBase64 = base64.isNotEmpty;
-        // Parsing the URI from source:
-        var charsetParameter = charset.isEmpty ? "" : ";charset=$charset";
-        var text = "data:$mimeType$charsetParameter$base64,";
-        var uri = UriData.parse(text);
-
-        String expectedCharset = charset.isEmpty ? "US-ASCII" : charset;
-        String expectedMimeType = mimeType.isEmpty ? "text/plain" : mimeType;
-
-        Expect.equals(text, "$uri");
-        Expect.equals(expectedMimeType, uri.mimeType);
-        Expect.isTrue(uri.isMimeType(expectedMimeType));
-        Expect.isTrue(uri.isMimeType(expectedMimeType.toUpperCase()));
-        Expect.isTrue(uri.isMimeType(expectedMimeType.toLowerCase()));
-        Expect.equals(expectedCharset, uri.charset);
-        Expect.isTrue(uri.isCharset(expectedCharset));
-        Expect.isTrue(uri.isCharset(expectedCharset.toLowerCase()));
-        Expect.isTrue(uri.isCharset(expectedCharset.toUpperCase()));
-        var expectedEncoding = Encoding.getByName(expectedCharset);
-        if (expectedEncoding != null) {
-          Expect.isTrue(uri.isEncoding(expectedEncoding));
-        }
-        Expect.equals(isBase64, uri.isBase64);
-
-        // Creating the URI using a constructor:
-        var encoding = Encoding.getByName(charset);
-        uri = UriData.fromString("",
-            mimeType: mimeType, encoding: encoding, base64: isBase64);
-        expectedMimeType =
-            (mimeType.isEmpty || mimeType.toLowerCase() == "text/plain")
-                ? "text/plain"
-                : mimeType;
-        expectedEncoding = encoding;
-        expectedCharset = expectedEncoding?.name ?? "US-ASCII";
-        var expectedText = "data:"
-            "${expectedMimeType == "text/plain" ? "" : expectedMimeType}"
-            "${charset.isEmpty ? "" : ";charset=$expectedCharset"}"
-            "${isBase64 ? ";base64" : ""}"
-            ",";
-
-        Expect.equals(expectedText, "$uri");
-        Expect.equals(expectedMimeType, uri.mimeType);
-        Expect.isTrue(uri.isMimeType(expectedMimeType));
-        Expect.isTrue(uri.isMimeType(expectedMimeType.toUpperCase()));
-        Expect.isTrue(uri.isMimeType(expectedMimeType.toLowerCase()));
-        Expect.equals(expectedCharset, uri.charset);
-        Expect.isTrue(uri.isCharset(expectedCharset));
-        Expect.isTrue(uri.isCharset(expectedCharset.toLowerCase()));
-        Expect.isTrue(uri.isCharset(expectedCharset.toUpperCase()));
-        if (expectedEncoding != null) {
-          Expect.isTrue(uri.isEncoding(expectedEncoding));
-        }
-        Expect.equals(isBase64, uri.isBase64);
-      }
-    }
-  }
-}
-
-void testRoundTrip(String content, [Encoding encoding]) {
-  UriData dataUri = new UriData.fromString(content, encoding: encoding);
-  Expect.isFalse(dataUri.isBase64);
-  Uri uri = dataUri.uri;
-  expectUriEquals(new Uri.dataFromString(content, encoding: encoding), uri);
-
-  if (encoding != null) {
-    UriData dataUriParams =
-        new UriData.fromString(content, parameters: {"charset": encoding.name});
-    Expect.equals("$dataUri", "$dataUriParams");
-  }
-
-  Expect.equals(encoding ?? ascii, Encoding.getByName(dataUri.charset));
-  Expect.equals(content, dataUri.contentAsString(encoding: encoding));
-  Expect.equals(content, dataUri.contentAsString());
-  Expect.equals(content, (encoding ?? ascii).decode(dataUri.contentAsBytes()));
-
-  uri = dataUri.uri;
-  Expect.equals(uri.toString(), dataUri.toString());
-  Expect.equals(dataUri.toString(), new UriData.fromUri(uri).toString());
-
-  dataUri = new UriData.fromBytes(content.codeUnits);
-  Expect.listEquals(content.codeUnits, dataUri.contentAsBytes());
-  Expect.equals(content, dataUri.contentAsString(encoding: latin1));
-
-  uri = dataUri.uri;
-  Expect.equals(uri.toString(), dataUri.toString());
-  Expect.equals(dataUri.toString(), new UriData.fromUri(uri).toString());
-  // Check that the URI is properly normalized.
-  expectUriEquals(uri, Uri.parse("$uri"));
-}
-
-void testUtf8Encoding(String content) {
-  UriData uri = new UriData.fromString(content, encoding: utf8);
-  Expect.equals(content, uri.contentAsString(encoding: utf8));
-  Expect.listEquals(utf8.encode(content), uri.contentAsBytes());
-}
-
-void testInvalidCharacters() {
-  // SPACE, CTL and tspecial, plus '%' and '#' (URI gen-delim)
-  // This contains all ASCII character that are not valid in attribute/value
-  // parts.
-  var invalid =
-      '\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x7f'
-      ' ()<>@,;:"/[]?=%#\x80\u{1000}\u{10000}';
-  var invalidNoSlash = invalid.replaceAll('/', '');
-  var dataUri = new UriData.fromString(invalid,
-      encoding: utf8,
-      mimeType: "$invalidNoSlash/$invalidNoSlash",
-      parameters: {invalid: invalid});
-
-  Expect.equals(invalid, dataUri.contentAsString());
-  Expect.equals("$invalidNoSlash/$invalidNoSlash", dataUri.mimeType);
-  Expect.equals(invalid, dataUri.parameters[invalid]);
-
-  var uri = dataUri.uri;
-  Expect.equals("$uri", "$dataUri");
-  expectUriEquals(uri, Uri.parse("$uri")); // Check that it's canonicalized.
-  Expect.equals("$dataUri", new UriData.fromUri(uri).toString());
-}
-
-void testBytes() {
-  void testList(List<int> list) {
-    var dataUri = new UriData.fromBytes(list);
-    Expect.equals("application/octet-stream", dataUri.mimeType);
-    Expect.isTrue(dataUri.isBase64);
-    Expect.listEquals(list, dataUri.contentAsBytes());
-
-    dataUri = new UriData.fromBytes(list, percentEncoded: true);
-    Expect.equals("application/octet-stream", dataUri.mimeType);
-    Expect.isFalse(dataUri.isBase64);
-    Expect.listEquals(list, dataUri.contentAsBytes());
-
-    var string = new String.fromCharCodes(list);
-
-    dataUri = new UriData.fromString(string, encoding: latin1);
-    Expect.equals("text/plain", dataUri.mimeType);
-    Expect.isFalse(dataUri.isBase64);
-    Expect.listEquals(list, dataUri.contentAsBytes());
-
-    dataUri = new UriData.fromString(string, encoding: latin1, base64: true);
-    Expect.equals("text/plain", dataUri.mimeType);
-    Expect.isTrue(dataUri.isBase64);
-    Expect.listEquals(list, dataUri.contentAsBytes());
-  }
-
-  void testLists(List<int> list) {
-    testList(list);
-    for (int i = 0; i < 27; i++) {
-      testList(list.sublist(i, i + i)); // All lengths from 0 to 27.
-    }
-  }
-
-  var bytes = new Uint8List(512);
-  for (int i = 0; i < bytes.length; i++) {
-    bytes[i] = i;
-  }
-  testLists(bytes);
-  testLists(new List.from(bytes));
-  testLists(new List.unmodifiable(bytes));
-}
-
-void testNormalization() {
-  // Base-64 normalization.
-
-  // Normalized URI-alphabet characters.
-  Expect.equals(
-      "data:;base64,AA/+", UriData.parse("data:;base64,AA_-").toString());
-  // Normalized escapes.
-  Expect.equals(
-      "data:;base64,AB==", UriData.parse("data:;base64,A%42=%3D").toString());
-  Expect.equals("data:;base64,/+/+",
-      UriData.parse("data:;base64,%5F%2D%2F%2B").toString());
-  // Normalized padded data.
-  Expect.equals(
-      "data:;base64,AA==", UriData.parse("data:;base64,AA%3D%3D").toString());
-  Expect.equals(
-      "data:;base64,AAA=", UriData.parse("data:;base64,AAA%3D").toString());
-  // Normalized unpadded data.
-  Expect.equals(
-      "data:;base64,AA==", UriData.parse("data:;base64,AA").toString());
-  Expect.equals(
-      "data:;base64,AAA=", UriData.parse("data:;base64,AAA").toString());
-
-  // "URI normalization" of non-base64 content.
-  var uri = UriData.parse("data:,\x20\xa0");
-  Expect.equals("data:,%20%C2%A0", uri.toString());
-  uri = UriData.parse("data:,x://x@y:[z]:42/p/./?q=x&y=z#?#\u1234\u{12345}");
-  Expect.equals(
-      "data:,x://x@y:%5Bz%5D:42/p/./?q=x&y=z%23?%23%E1%88%B4%F0%92%8D%85",
-      uri.toString());
-}
-
-void testErrors() {
-  // Invalid constructor parameters.
-  Expect.throwsArgumentError(
-      () => new UriData.fromBytes([], mimeType: "noslash"));
-  Expect.throwsArgumentError(() => new UriData.fromBytes([257]));
-  Expect.throwsArgumentError(() => new UriData.fromBytes([-1]));
-  Expect.throwsArgumentError(() => new UriData.fromBytes([0x10000000]));
-  Expect.throwsArgumentError(
-      () => new UriData.fromString("", mimeType: "noslash"));
-
-  Expect.throwsArgumentError(
-      () => new Uri.dataFromBytes([], mimeType: "noslash"));
-  Expect.throwsArgumentError(() => new Uri.dataFromBytes([257]));
-  Expect.throwsArgumentError(() => new Uri.dataFromBytes([-1]));
-  Expect.throwsArgumentError(() => new Uri.dataFromBytes([0x10000000]));
-  Expect.throwsArgumentError(
-      () => new Uri.dataFromString("", mimeType: "noslash"));
-
-  // Empty parameters allowed, not an error.
-  var uri = new UriData.fromString("", mimeType: "", parameters: {});
-  Expect.equals("data:,", "$uri");
-  // Empty parameter key or value is an error.
-  Expect.throwsArgumentError(
-      () => new UriData.fromString("", parameters: {"": "X"}));
-  Expect.throwsArgumentError(
-      () => new UriData.fromString("", parameters: {"X": ""}));
-
-  // Not recognizing charset is an error.
-  uri = UriData.parse("data:;charset=arglebargle,X");
-  Expect.throws(() {
-    uri.contentAsString();
-  });
-  // Doesn't throw if we specify the encoding.
-  Expect.equals("X", uri.contentAsString(encoding: ascii));
-
-  // Parse format.
-  Expect.throwsFormatException(() => UriData.parse("notdata:,"));
-  Expect.throwsFormatException(() => UriData.parse("text/plain,noscheme"));
-  Expect.throwsFormatException(() => UriData.parse("data:noseparator"));
-  Expect.throwsFormatException(() => UriData.parse("data:noslash,text"));
-  Expect.throwsFormatException(
-      () => UriData.parse("data:type/sub;noequals,text"));
-  Expect.throwsFormatException(() => UriData.parse("data:type/sub;knocomma="));
-  Expect.throwsFormatException(
-      () => UriData.parse("data:type/sub;k=v;nocomma"));
-  Expect.throwsFormatException(() => UriData.parse("data:type/sub;k=nocomma"));
-  Expect.throwsFormatException(() => UriData.parse("data:type/sub;k=v;base64"));
-
-  void formatError(String input) {
-    Expect.throwsFormatException(
-        () => UriData.parse("data:;base64,$input"), input);
-  }
-
-  // Invalid base64 format (detected when parsed).
-  for (var a = 0; a <= 4; a++) {
-    for (var p = 0; p <= 4; p++) {
-      // Base-64 encoding must have length divisible by four and no more
-      // than two padding characters at the end.
-      if (p < 3 && (a + p) % 4 == 0) continue;
-      if (p == 0 && a > 1) continue;
-      formatError("A" * a + "=" * p);
-      formatError("A" * a + "%3D" * p);
-    }
-  }
-  // Invalid base64 encoding: padding not at end.
-  formatError("AA=A");
-  formatError("A=AA");
-  formatError("=AAA");
-  formatError("A==A");
-  formatError("==AA");
-  formatError("===A");
-  formatError("AAA%3D=");
-  formatError("A%3D==");
-
-  // Invalid unpadded data.
-  formatError("A");
-  formatError("AAAAA");
-
-  // Invalid characters.
-  formatError("AAA*");
-  formatError("AAA\x00");
-  formatError("AAA\\");
-  formatError("AAA,");
-
-  // Invalid escapes.
-  formatError("AAA%25");
-  formatError("AAA%7F");
-  formatError("AAA%7F");
-}
-
-/// Checks that two [Uri]s are exactly the same.
-expectUriEquals(Uri expect, Uri actual) {
-  Expect.equals(expect.scheme, actual.scheme, "scheme");
-  Expect.equals(expect.hasAuthority, actual.hasAuthority, "hasAuthority");
-  Expect.equals(expect.userInfo, actual.userInfo, "userInfo");
-  Expect.equals(expect.host, actual.host, "host");
-  Expect.equals(expect.hasPort, actual.hasPort, "hasPort");
-  Expect.equals(expect.port, actual.port, "port");
-  Expect.equals(expect.port, actual.port, "port");
-  Expect.equals(expect.hasQuery, actual.hasQuery, "hasQuery");
-  Expect.equals(expect.query, actual.query, "query");
-  Expect.equals(expect.hasFragment, actual.hasFragment, "hasFragment");
-  Expect.equals(expect.fragment, actual.fragment, "fragment");
-}
-
-void testUriEquals(String uriText) {
-  var data = UriData.parse(uriText);
-  var uri = Uri.parse(uriText);
-  Expect.equals(data.uri, uri);
-  Expect.equals(data.toString(), uri.data.toString());
-  Expect.equals(data.toString(), uri.toString());
-}
diff --git a/tests/corelib_2/date_time10_test.dart b/tests/corelib_2/date_time10_test.dart
deleted file mode 100644
index cd3eb599ef0..00000000000
--- a/tests/corelib_2/date_time10_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Make sure the years in the range of single digits are handled correctly with
-// month roll-over. (This tests an edge condition when delegating to
-// JavaScript's Date constructor.)
-
-void check(String expected, DateTime actual) {
-  Expect.equals(expected, actual.toString());
-}
-
-testUtc() {
-  check("0099-01-01 00:00:00.000Z", new DateTime.utc(99, 1));
-  check("0100-01-01 00:00:00.000Z", new DateTime.utc(99, 1 + 12));
-  check("0000-01-01 00:00:00.000Z", new DateTime.utc(0, 1));
-  check("-0001-01-01 00:00:00.000Z", new DateTime.utc(0, 1 - 12));
-
-  check("0099-03-02 00:00:00.000Z", new DateTime.utc(99, 2, 30));
-  check("0100-03-02 00:00:00.000Z", new DateTime.utc(99, 2 + 12, 30));
-
-  check("0004-03-01 00:00:00.000Z", new DateTime.utc(3, 2 + 12, 30));
-  check("0004-03-01 00:00:00.000Z", new DateTime.utc(4, 2, 30));
-  check("0004-03-01 00:00:00.000Z", new DateTime.utc(5, 2 - 12, 30));
-
-  check("0005-03-02 00:00:00.000Z", new DateTime.utc(4, 2 + 12, 30));
-  check("0005-03-02 00:00:00.000Z", new DateTime.utc(5, 2, 30));
-  check("0005-03-02 00:00:00.000Z", new DateTime.utc(6, 2 - 12, 30));
-}
-
-testLocal() {
-  check("0099-01-01 00:00:00.000", new DateTime(99, 1));
-  check("0100-01-01 00:00:00.000", new DateTime(99, 1 + 12));
-  check("0000-01-01 00:00:00.000", new DateTime(0, 1));
-  check("-0001-01-01 00:00:00.000", new DateTime(0, 1 - 12));
-
-  check("0099-03-02 00:00:00.000", new DateTime(99, 2, 30));
-  check("0100-03-02 00:00:00.000", new DateTime(99, 2 + 12, 30));
-
-  check("0004-03-01 00:00:00.000", new DateTime(3, 2 + 12, 30));
-  check("0004-03-01 00:00:00.000", new DateTime(4, 2, 30));
-  check("0004-03-01 00:00:00.000", new DateTime(5, 2 - 12, 30));
-
-  check("0005-03-02 00:00:00.000", new DateTime(4, 2 + 12, 30));
-  check("0005-03-02 00:00:00.000", new DateTime(5, 2, 30));
-  check("0005-03-02 00:00:00.000", new DateTime(6, 2 - 12, 30));
-}
-
-main() {
-  testUtc();
-  testLocal();
-}
diff --git a/tests/corelib_2/date_time11_test.dart b/tests/corelib_2/date_time11_test.dart
deleted file mode 100644
index 7039b1ea793..00000000000
--- a/tests/corelib_2/date_time11_test.dart
+++ /dev/null
@@ -1,140 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Make sure that date-times close to daylight savings work correctly.
-// See http://dartbug.com/30550
-
-/// A list of (decomposed) date-times where daylight saving changes
-/// happen.
-///
-/// This list covers multiple timezones to increase test coverage on
-/// different machines.
-final daylightSavingChanges = [
-  // TZ environment, y, m, d, h, change.
-  ["Europe/Paris", 2017, 03, 26, 02, 60],
-  ["Europe/Paris", 2017, 10, 29, 03, -60],
-  ["Antarctica/Troll", 2017, 03, 19, 01, 120],
-  ["Antarctica/Troll", 2017, 10, 29, 03, -120],
-  ["Australia/Canberra", 2017, 04, 02, 03, -60],
-  ["Australia/Canberra", 2017, 10, 01, 02, 60],
-  ["Australia/Lord_Howe", 2017, 04, 02, 02, -30],
-  ["Australia/Lord_Howe", 2017, 10, 01, 02, 30],
-  ["Atlantic/Bermuda", 2017, 03, 12, 02, 60], // US and Canada.
-  ["Atlantic/Bermuda", 2017, 11, 05, 02, -60],
-  ["America/Campo_Grande", 2017, 02, 19, 00, -60], // Brazil
-  ["America/Campo_Grande", 2017, 10, 15, 00, 60],
-  ["America/Santiago", 2017, 05, 14, 00, -60],
-  ["America/Santiago", 2017, 08, 13, 00, 60],
-  ["Chile/EasterIsland", 2017, 05, 13, 22, -60],
-  ["Chile/EasterIsland", 2017, 08, 12, 22, 60],
-  ["Pacific/Fiji", 2017, 01, 15, 03, -60],
-  ["Pacific/Fiji", 2017, 11, 05, 02, 60],
-  ["America/Scoresbysund", 2017, 03, 26, 00, 60], // Ittoqqortoormiit.
-  ["America/Scoresbysund", 2017, 10, 29, 01, -60],
-  ["Asia/Tehran", 2017, 03, 22, 00, 60],
-  ["Asia/Tehran", 2017, 09, 22, 00, -60],
-  ["Israel", 2017, 03, 24, 02, 60],
-  ["Israel", 2017, 10, 29, 02, -60],
-  ["Asia/Amman", 2017, 03, 31, 00, 60],
-  ["Asia/Amman", 2017, 10, 27, 01, -60],
-  ["Mexico/General", 2017, 04, 02, 02, 60],
-  ["Mexico/General", 2017, 10, 29, 02, -60],
-];
-
-void runTests() {
-  // Makes sure we don't go into the wrong direction during a
-  // daylight-savings change (as happened in #30550).
-  for (var test in daylightSavingChanges) {
-    for (int i = 0; i < 2; i++) {
-      int year = test[1];
-      int month = test[2];
-      int day = test[3];
-      int hour = test[4];
-
-      int minute = i == 0 ? 0 : test[5];
-      // Rather adjust the hours than keeping the minutes.
-      hour += minute ~/ 60;
-      minute = minute.remainder(60);
-      if (hour < 0) {
-        hour += 24;
-        day--;
-      }
-
-      {
-        // Check that microseconds are taken into account.
-        var dtMillisecond = new DateTime(year, month, day, hour, minute, 0, 1);
-        var dtSecond = new DateTime(year, month, day, hour, minute, 1);
-        Expect.equals(const Duration(milliseconds: 999),
-            dtSecond.difference(dtMillisecond));
-
-        dtMillisecond = new DateTime(year, month, day, hour, minute, 0, -1);
-        dtSecond = new DateTime(year, month, day, hour, minute, -1);
-        Expect.equals(const Duration(milliseconds: 999),
-            dtMillisecond.difference(dtSecond));
-      }
-
-      var dt1 = new DateTime(year, month, day, hour);
-      var dt2 = new DateTime(year, month, day, hour, 1);
-
-      // Earlier:
-      int earlierDay = day;
-      int earlierHour = hour - 1;
-      if (earlierHour < 0) {
-        earlierHour = 23;
-        earlierDay--;
-      }
-      var dt3 = new DateTime(year, month, earlierDay, earlierHour, 59);
-
-      var diff1 = dt2.difference(dt1).inMinutes;
-      var diff2 = dt1.difference(dt3).inMinutes;
-
-      if (diff1 == 1 && diff2 == 1 && dt1.hour == hour && dt1.minute == 0) {
-        // Regular date-time.
-        continue;
-      }
-
-      // At most one is at a distance of more than a minute.
-      Expect.isTrue(diff1 == 1 || diff2 == 1);
-
-      if (diff2 < 0) {
-        // This happens, when we ask for invalid times.
-        // Suppose daylight-saving is at 2:00 and switches to 3:00. If we
-        // ask for 2:59, we get 3:59 (59 minutes after 2:00).
-        Expect.isFalse(dt3.day == earlierDay && dt3.hour == earlierHour);
-        // If that's the case, then removing one minute from dt1 should
-        // not yield a date-time with the earlier values, and it should
-        // be far away from dt3.
-        var dt4 = dt1.add(const Duration(minutes: -1));
-        Expect.isFalse(dt4.day == earlierDay && dt4.hour == earlierHour);
-        Expect.isTrue(dt4.isBefore(dt1));
-        Expect.isTrue(dt4.day < earlierDay ||
-            (dt4.day == earlierDay && dt4.hour < earlierHour));
-        continue;
-      }
-
-      // They must be in the right order.
-      Expect.isTrue(dt1.isBefore(dt2));
-      Expect.isTrue(dt3.isBefore(dt1));
-    }
-  }
-}
-
-void main(List<String> args) {
-  // The following code constructs a String with all timezones that are
-  // relevant for this test.
-  // This can be helpful for running tests in multiple timezones.
-  // Typically, one would write something like:
-  //    for tz in <contents_of_string>; do TZ=$tz tools/test.py ...; done
-  var result = new StringBuffer();
-  for (int i = 0; i < daylightSavingChanges.length; i += 2) {
-    if (i != 0) result.write(" ");
-    result.write(daylightSavingChanges[i][0]);
-  }
-
-  runTests();
-}
diff --git a/tests/corelib_2/date_time2_test.dart b/tests/corelib_2/date_time2_test.dart
deleted file mode 100644
index e443b495ef0..00000000000
--- a/tests/corelib_2/date_time2_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test program for DateTime's hashCode.
-
-main() {
-  var d = DateTime.parse("2000-01-01T00:00:00Z");
-  var d2 = DateTime.parse("2000-01-01T00:00:01Z");
-  // There is no guarantee that the hashcode for these two dates is different,
-  // but in the worst case we will have to fix this test.
-  // The important test here is, that DateTime .
-  Expect.isFalse(d.hashCode == d2.hashCode);
-}
diff --git a/tests/corelib_2/date_time3_test.dart b/tests/corelib_2/date_time3_test.dart
deleted file mode 100644
index 63349cd0acf..00000000000
--- a/tests/corelib_2/date_time3_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// At some point dart was emitting a bad padding 0 for Dates where the ms were
-// ending with 10.
-
-main() {
-  String s = "2012-01-30 08:30:00.010";
-  DateTime d = DateTime.parse(s);
-  Expect.equals(s, d.toString());
-}
diff --git a/tests/corelib_2/date_time4_test.dart b/tests/corelib_2/date_time4_test.dart
deleted file mode 100644
index 549f4362a08..00000000000
--- a/tests/corelib_2/date_time4_test.dart
+++ /dev/null
@@ -1,106 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test fromString with 6 digits after the decimal point.
-
-bool get supportsMicroseconds =>
-    new DateTime.fromMicrosecondsSinceEpoch(1).microsecondsSinceEpoch == 1;
-
-main() {
-  if (supportsMicroseconds) {
-    testMicrosecondPrecision();
-  } else {
-    testMillisecondPrecision();
-  }
-}
-
-void testMillisecondPrecision() {
-  // We only support milliseconds. If the user supplies more data (the "51"
-  // here), we round.
-  DateTime dt1 = DateTime.parse("1999-01-02 23:59:59.999519");
-  Expect.equals(1999, dt1.year);
-  Expect.equals(1, dt1.month);
-  Expect.equals(3, dt1.day);
-  Expect.equals(0, dt1.hour);
-  Expect.equals(0, dt1.minute);
-  Expect.equals(0, dt1.second);
-  Expect.equals(0, dt1.millisecond);
-  Expect.equals(false, dt1.isUtc);
-  dt1 = DateTime.parse("1999-01-02 23:58:59.999519Z");
-  Expect.equals(1999, dt1.year);
-  Expect.equals(1, dt1.month);
-  Expect.equals(2, dt1.day);
-  Expect.equals(23, dt1.hour);
-  Expect.equals(59, dt1.minute);
-  Expect.equals(0, dt1.second);
-  Expect.equals(0, dt1.millisecond);
-  Expect.equals(true, dt1.isUtc);
-  dt1 = DateTime.parse("0009-09-09 09:09:09.009411Z");
-  Expect.equals(9, dt1.year);
-  Expect.equals(9, dt1.month);
-  Expect.equals(9, dt1.day);
-  Expect.equals(9, dt1.hour);
-  Expect.equals(9, dt1.minute);
-  Expect.equals(9, dt1.second);
-  Expect.equals(9, dt1.millisecond);
-  Expect.equals(true, dt1.isUtc);
-  String svnDate = "2012-03-30T04:28:13.752341Z";
-  dt1 = DateTime.parse(svnDate);
-  Expect.equals(2012, dt1.year);
-  Expect.equals(3, dt1.month);
-  Expect.equals(30, dt1.day);
-  Expect.equals(4, dt1.hour);
-  Expect.equals(28, dt1.minute);
-  Expect.equals(13, dt1.second);
-  Expect.equals(752, dt1.millisecond);
-  Expect.equals(true, dt1.isUtc);
-}
-
-void testMicrosecondPrecision() {
-  DateTime dt1 = DateTime.parse("1999-01-02 23:59:59.999519");
-  Expect.equals(1999, dt1.year);
-  Expect.equals(1, dt1.month);
-  Expect.equals(2, dt1.day);
-  Expect.equals(23, dt1.hour);
-  Expect.equals(59, dt1.minute);
-  Expect.equals(59, dt1.second);
-  Expect.equals(999, dt1.millisecond);
-  Expect.equals(519, dt1.microsecond);
-  Expect.equals(false, dt1.isUtc);
-  dt1 = DateTime.parse("1999-01-02 23:58:59.999519Z");
-  Expect.equals(1999, dt1.year);
-  Expect.equals(1, dt1.month);
-  Expect.equals(2, dt1.day);
-  Expect.equals(23, dt1.hour);
-  Expect.equals(58, dt1.minute);
-  Expect.equals(59, dt1.second);
-  Expect.equals(999, dt1.millisecond);
-  Expect.equals(519, dt1.microsecond);
-  Expect.equals(true, dt1.isUtc);
-  dt1 = DateTime.parse("0009-09-09 09:09:09.009411Z");
-  Expect.equals(9, dt1.year);
-  Expect.equals(9, dt1.month);
-  Expect.equals(9, dt1.day);
-  Expect.equals(9, dt1.hour);
-  Expect.equals(9, dt1.minute);
-  Expect.equals(9, dt1.second);
-  Expect.equals(9, dt1.millisecond);
-  Expect.equals(411, dt1.microsecond);
-  Expect.equals(true, dt1.isUtc);
-  String svnDate = "2012-03-30T04:28:13.752341Z";
-  dt1 = DateTime.parse(svnDate);
-  Expect.equals(2012, dt1.year);
-  Expect.equals(3, dt1.month);
-  Expect.equals(30, dt1.day);
-  Expect.equals(4, dt1.hour);
-  Expect.equals(28, dt1.minute);
-  Expect.equals(13, dt1.second);
-  Expect.equals(752, dt1.millisecond);
-  Expect.equals(341, dt1.microsecond);
-  Expect.equals(true, dt1.isUtc);
-}
diff --git a/tests/corelib_2/date_time5_test.dart b/tests/corelib_2/date_time5_test.dart
deleted file mode 100644
index af54f5e116e..00000000000
--- a/tests/corelib_2/date_time5_test.dart
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test DateTime constructor with optional arguments.
-
-main() {
-  var d = new DateTime(2012);
-  Expect.equals(2012, d.year);
-  Expect.equals(1, d.month);
-  Expect.equals(1, d.day);
-  Expect.equals(0, d.hour);
-  Expect.equals(0, d.minute);
-  Expect.equals(0, d.second);
-  Expect.equals(0, d.millisecond);
-
-  d = new DateTime(2012, 1, 28);
-  Expect.equals(2012, d.year);
-  Expect.equals(1, d.month);
-  Expect.equals(28, d.day);
-  Expect.equals(0, d.hour);
-  Expect.equals(0, d.minute);
-  Expect.equals(0, d.second);
-  Expect.equals(0, d.millisecond);
-
-  d = new DateTime(1970, 3);
-  Expect.equals(1970, d.year);
-  Expect.equals(3, d.month);
-  Expect.equals(1, d.day);
-  Expect.equals(0, d.hour);
-  Expect.equals(0, d.minute);
-  Expect.equals(0, d.second);
-  Expect.equals(0, d.millisecond);
-
-  d = new DateTime(1970, 3, 1, 11);
-  Expect.equals(1970, d.year);
-  Expect.equals(3, d.month);
-  Expect.equals(1, d.day);
-  Expect.equals(11, d.hour);
-  Expect.equals(0, d.minute);
-  Expect.equals(0, d.second);
-  Expect.equals(0, d.millisecond);
-
-  d = new DateTime(0, 12, 24, 0, 12);
-  Expect.equals(0, d.year);
-  Expect.equals(12, d.month);
-  Expect.equals(24, d.day);
-  Expect.equals(0, d.hour);
-  Expect.equals(12, d.minute);
-  Expect.equals(0, d.second);
-  Expect.equals(0, d.millisecond);
-
-  d = new DateTime(-1, 2, 2, 3, 0, 0, 4);
-  Expect.equals(-1, d.year);
-  Expect.equals(2, d.month);
-  Expect.equals(2, d.day);
-  Expect.equals(3, d.hour);
-  Expect.equals(0, d.minute);
-  Expect.equals(0, d.second);
-  Expect.equals(4, d.millisecond);
-
-  d = new DateTime(-1, 2, 2, 3, 0, 4);
-  Expect.equals(-1, d.year);
-  Expect.equals(2, d.month);
-  Expect.equals(2, d.day);
-  Expect.equals(3, d.hour);
-  Expect.equals(0, d.minute);
-  Expect.equals(4, d.second);
-  Expect.equals(0, d.millisecond);
-
-  d = new DateTime(2012, 5, 15, 13, 21, 33, 12);
-  Expect.equals(2012, d.year);
-  Expect.equals(5, d.month);
-  Expect.equals(15, d.day);
-  Expect.equals(13, d.hour);
-  Expect.equals(21, d.minute);
-  Expect.equals(33, d.second);
-  Expect.equals(12, d.millisecond);
-}
diff --git a/tests/corelib_2/date_time6_test.dart b/tests/corelib_2/date_time6_test.dart
deleted file mode 100644
index 896225d2c47..00000000000
--- a/tests/corelib_2/date_time6_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test DateTime comparison operators.
-
-main() {
-  var d = new DateTime.fromMillisecondsSinceEpoch(0, isUtc: true);
-  var d2 = new DateTime.fromMillisecondsSinceEpoch(1, isUtc: true);
-  Expect.isTrue(d.isBefore(d2));
-  Expect.isTrue(!d.isAfter(d2));
-  Expect.isTrue(d2.isAfter(d));
-  Expect.isTrue(!d2.isBefore(d));
-  Expect.isFalse(d2.isBefore(d));
-  Expect.isFalse(!d2.isAfter(d));
-  Expect.isFalse(d.isAfter(d2));
-  Expect.isFalse(!d.isBefore(d2));
-
-  d = new DateTime.fromMillisecondsSinceEpoch(-1, isUtc: true);
-  d2 = new DateTime.fromMillisecondsSinceEpoch(0, isUtc: true);
-  Expect.isTrue(d.isBefore(d2));
-  Expect.isTrue(!d.isAfter(d2));
-  Expect.isTrue(d2.isAfter(d));
-  Expect.isTrue(!d2.isBefore(d));
-  Expect.isFalse(d2.isBefore(d));
-  Expect.isFalse(!d2.isAfter(d));
-  Expect.isFalse(d.isAfter(d2));
-  Expect.isFalse(!d.isBefore(d2));
-}
diff --git a/tests/corelib_2/date_time7_test.dart b/tests/corelib_2/date_time7_test.dart
deleted file mode 100644
index 3f062f742ec..00000000000
--- a/tests/corelib_2/date_time7_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test DateTime timeZoneName and timeZoneOffset getters.
-
-testUtc() {
-  var d = DateTime.parse("2012-03-04T03:25:38.123Z");
-  Expect.equals("UTC", d.timeZoneName);
-  Expect.equals(0, d.timeZoneOffset.inSeconds);
-}
-
-testLocal() {
-  checkOffset(String name, Duration offset) {
-    // Timezone abbreviations are not in bijection with their timezones.
-    // For example AST stands for "Arab Standard Time" (UTC+03), as well as
-    // "Arabian Standard Time" (UTC+04), or PST stands for Pacific Standard Time
-    // and Philippine Standard Time.
-    //
-    // Hardcode some common timezones.
-    if (name == "CET") {
-      Expect.equals(1, offset.inHours);
-    } else if (name == "CEST") {
-      Expect.equals(2, offset.inHours);
-    } else if (name == "GMT") {
-      Expect.equals(0, offset.inSeconds);
-    } else if (name == "EST") {
-      Expect.equals(-5, offset.inHours);
-    } else if (name == "EDT") {
-      Expect.equals(-4, offset.inHours);
-    } else if (name == "PDT") {
-      Expect.equals(-7, offset.inHours);
-    }
-  }
-
-  var d = DateTime.parse("2012-01-02T13:45:23");
-  String name = d.timeZoneName;
-  checkOffset(name, d.timeZoneOffset);
-
-  d = DateTime.parse("2012-07-02T13:45:23");
-  name = d.timeZoneName;
-  checkOffset(name, d.timeZoneOffset);
-}
-
-main() {
-  testUtc();
-  testLocal();
-}
diff --git a/tests/corelib_2/date_time8_test.dart b/tests/corelib_2/date_time8_test.dart
deleted file mode 100644
index 0603bc0494e..00000000000
--- a/tests/corelib_2/date_time8_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Make sure the year 0 is correctly printed.
-
-testUtc() {
-  var d = new DateTime.utc(0, 1, 1);
-  Expect.equals("0000-01-01 00:00:00.000Z", d.toString());
-}
-
-testLocal() {
-  var d = new DateTime(0, 1, 1);
-  Expect.equals("0000-01-01 00:00:00.000", d.toString());
-}
-
-main() {
-  testUtc();
-  testLocal();
-}
diff --git a/tests/corelib_2/date_time9_test.dart b/tests/corelib_2/date_time9_test.dart
deleted file mode 100644
index ed8bf1ee2fe..00000000000
--- a/tests/corelib_2/date_time9_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  var dt = new DateTime.now();
-  Expect.isTrue(dt is Comparable);
-
-  var dt2 = new DateTime.fromMillisecondsSinceEpoch(100);
-  var dt3 = new DateTime.fromMillisecondsSinceEpoch(200, isUtc: true);
-  var dt3b = new DateTime.fromMillisecondsSinceEpoch(200);
-  var dt4 = new DateTime.fromMillisecondsSinceEpoch(300);
-  var dt5 = new DateTime.fromMillisecondsSinceEpoch(400, isUtc: true);
-  var dt5b = new DateTime.fromMillisecondsSinceEpoch(400);
-
-  Expect.isTrue(dt2.compareTo(dt2) == 0);
-  Expect.isTrue(dt3.compareTo(dt3) == 0);
-  Expect.isTrue(dt3b.compareTo(dt3b) == 0);
-  Expect.isTrue(dt4.compareTo(dt4) == 0);
-  Expect.isTrue(dt5.compareTo(dt5) == 0);
-  Expect.isTrue(dt5b.compareTo(dt5b) == 0);
-
-  // Time zones don't have any effect.
-  Expect.isTrue(dt3.compareTo(dt3b) == 0);
-  Expect.isTrue(dt5.compareTo(dt5b) == 0);
-
-  Expect.isTrue(dt2.compareTo(dt3) < 0);
-  Expect.isTrue(dt3.compareTo(dt4) < 0);
-  Expect.isTrue(dt4.compareTo(dt5) < 0);
-
-  Expect.isTrue(dt2.compareTo(dt3b) < 0);
-  Expect.isTrue(dt4.compareTo(dt5b) < 0);
-
-  Expect.isTrue(dt3.compareTo(dt2) > 0);
-  Expect.isTrue(dt4.compareTo(dt3) > 0);
-  Expect.isTrue(dt5.compareTo(dt4) > 0);
-
-  Expect.isTrue(dt3b.compareTo(dt2) > 0);
-  Expect.isTrue(dt5b.compareTo(dt4) > 0);
-}
diff --git a/tests/corelib_2/date_time_copy_with_test.dart b/tests/corelib_2/date_time_copy_with_test.dart
deleted file mode 100644
index 5d499091501..00000000000
--- a/tests/corelib_2/date_time_copy_with_test.dart
+++ /dev/null
@@ -1,90 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart=2.9
-
-import "package:expect/expect.dart";
-
-// Dart test program for DateTime.copyWith.
-
-testCopyWith(
-  DateTime original,
-  int year,
-  int month,
-  int day,
-  int hour,
-  int minute,
-  int second,
-  int millisecond,
-  bool isUtc,
-) {
-  final result = original.copyWith(
-    year: year,
-    month: month,
-    day: day,
-    hour: hour,
-    minute: minute,
-    second: second,
-    millisecond: millisecond,
-    isUtc: isUtc,
-  );
-
-  final expected = isUtc
-      ? DateTime.utc(
-          year != null ? year : original.year,
-          month != null ? month : original.month,
-          day != null ? day : original.day,
-          hour != null ? hour : original.hour,
-          minute != null ? minute : original.minute,
-          second != null ? second : original.second,
-          millisecond != null ? millisecond : original.millisecond,
-        )
-      : DateTime(
-          year != null ? year : original.year,
-          month != null ? month : original.month,
-          day != null ? day : original.day,
-          hour != null ? hour : original.hour,
-          minute != null ? minute : original.minute,
-          second != null ? second : original.second,
-          millisecond != null ? millisecond : original.millisecond,
-        );
-
-  Expect.equals(expected, result);
-}
-
-void main() {
-  final epoch = DateTime.utc(1970, 1, 1);
-  final dst = DateTime.parse("2015-07-07T12:12:24Z");
-  final leap = DateTime.parse("2012-02-28T12:12:24");
-
-  for (var year in [null, -100, 1917, 2012]) {
-    for (var month in [null, -1, 1, 2, 12, 14]) {
-      for (var day in [null, -1, 1, 28, 29, 30, 31, 32]) {
-        for (var hour in [null, -1, 0, 23, 25]) {
-          for (var minute in [null, -1, 1, 59, 61]) {
-            for (var second in [null, -1, 1, 59, 61]) {
-              for (var millisecond in [null, -1, 1, 999, 1001]) {
-                for (var isUtc in [false, true]) {
-                  for (var base in [epoch, dst, leap]) {
-                    testCopyWith(
-                      base,
-                      year,
-                      month,
-                      day,
-                      hour,
-                      minute,
-                      second,
-                      millisecond,
-                      isUtc,
-                    );
-                  }
-                }
-              }
-            }
-          }
-        }
-      }
-    }
-  }
-}
diff --git a/tests/corelib_2/date_time_extremes_test.dart b/tests/corelib_2/date_time_extremes_test.dart
deleted file mode 100644
index a81c4da9931..00000000000
--- a/tests/corelib_2/date_time_extremes_test.dart
+++ /dev/null
@@ -1,101 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test program for DateTime, extreme values.
-
-bool get supportsMicroseconds =>
-    new DateTime.fromMicrosecondsSinceEpoch(1).microsecondsSinceEpoch == 1;
-
-// Identical to _maxMillisecondsSinceEpoch in date_time.dart
-const int _MAX_MILLISECONDS = 8640000000000000;
-
-void testExtremes() {
-  var dt =
-      new DateTime.fromMillisecondsSinceEpoch(_MAX_MILLISECONDS, isUtc: true);
-  Expect.equals(275760, dt.year);
-  Expect.equals(9, dt.month);
-  Expect.equals(13, dt.day);
-  Expect.equals(0, dt.hour);
-  Expect.equals(0, dt.minute);
-  Expect.equals(0, dt.second);
-  Expect.equals(0, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-  dt = new DateTime.fromMillisecondsSinceEpoch(-_MAX_MILLISECONDS, isUtc: true);
-  Expect.equals(-271821, dt.year);
-  Expect.equals(4, dt.month);
-  Expect.equals(20, dt.day);
-  Expect.equals(0, dt.hour);
-  Expect.equals(0, dt.minute);
-  Expect.equals(0, dt.second);
-  Expect.equals(0, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-  // Make sure that we can build the extreme dates in local too.
-  dt = new DateTime.fromMillisecondsSinceEpoch(_MAX_MILLISECONDS);
-  dt = new DateTime(dt.year, dt.month, dt.day, dt.hour, dt.minute);
-  Expect.equals(_MAX_MILLISECONDS, dt.millisecondsSinceEpoch);
-  dt = new DateTime.fromMillisecondsSinceEpoch(-_MAX_MILLISECONDS);
-  dt = new DateTime(dt.year, dt.month, dt.day, dt.hour, dt.minute);
-  Expect.equals(-_MAX_MILLISECONDS, dt.millisecondsSinceEpoch);
-  Expect.throws(() => new DateTime.fromMillisecondsSinceEpoch(
-      _MAX_MILLISECONDS + 1,
-      isUtc: true));
-  Expect.throws(() => new DateTime.fromMillisecondsSinceEpoch(
-      -_MAX_MILLISECONDS - 1,
-      isUtc: true));
-  Expect.throws(
-      () => new DateTime.fromMillisecondsSinceEpoch(_MAX_MILLISECONDS + 1));
-  Expect.throws(
-      () => new DateTime.fromMillisecondsSinceEpoch(-_MAX_MILLISECONDS - 1));
-  dt = new DateTime.fromMillisecondsSinceEpoch(_MAX_MILLISECONDS);
-  Expect.throws(
-      () => new DateTime(dt.year, dt.month, dt.day, dt.hour, dt.minute, 0, 1));
-  dt = new DateTime.fromMillisecondsSinceEpoch(_MAX_MILLISECONDS, isUtc: true);
-  Expect.throws(() =>
-      new DateTime.utc(dt.year, dt.month, dt.day, dt.hour, dt.minute, 0, 1));
-  dt = new DateTime.fromMillisecondsSinceEpoch(-_MAX_MILLISECONDS);
-  Expect.throws(
-      () => new DateTime(dt.year, dt.month, dt.day, dt.hour, dt.minute, 0, -1));
-  dt = new DateTime.fromMillisecondsSinceEpoch(-_MAX_MILLISECONDS, isUtc: true);
-  Expect.throws(() =>
-      new DateTime.utc(dt.year, dt.month, dt.day, dt.hour, dt.minute, 0, -1));
-
-  if (!supportsMicroseconds) return;
-
-  dt = new DateTime.fromMicrosecondsSinceEpoch(_MAX_MILLISECONDS * 1000);
-  dt = new DateTime(dt.year, dt.month, dt.day, dt.hour, dt.minute);
-  Expect.equals(_MAX_MILLISECONDS * 1000, dt.microsecondsSinceEpoch);
-  dt = new DateTime.fromMicrosecondsSinceEpoch(-_MAX_MILLISECONDS * 1000);
-  dt = new DateTime(dt.year, dt.month, dt.day, dt.hour, dt.minute);
-  Expect.equals(-_MAX_MILLISECONDS * 1000, dt.microsecondsSinceEpoch);
-  Expect.throws(() => new DateTime.fromMicrosecondsSinceEpoch(
-      _MAX_MILLISECONDS * 1000 + 1,
-      isUtc: true));
-  Expect.throws(() => new DateTime.fromMicrosecondsSinceEpoch(
-      -_MAX_MILLISECONDS * 1000 - 1,
-      isUtc: true));
-  Expect.throws(() =>
-      new DateTime.fromMicrosecondsSinceEpoch(_MAX_MILLISECONDS * 1000 + 1));
-  Expect.throws(() =>
-      new DateTime.fromMicrosecondsSinceEpoch(-_MAX_MILLISECONDS * 1000 - 1));
-  dt = new DateTime.fromMillisecondsSinceEpoch(_MAX_MILLISECONDS);
-  Expect.throws(() =>
-      new DateTime(dt.year, dt.month, dt.day, dt.hour, dt.minute, 0, 0, 1));
-  dt = new DateTime.fromMillisecondsSinceEpoch(_MAX_MILLISECONDS, isUtc: true);
-  Expect.throws(() =>
-      new DateTime.utc(dt.year, dt.month, dt.day, dt.hour, dt.minute, 0, 0, 1));
-  dt = new DateTime.fromMillisecondsSinceEpoch(-_MAX_MILLISECONDS);
-  Expect.throws(() =>
-      new DateTime(dt.year, dt.month, dt.day, dt.hour, dt.minute, 0, 0, -1));
-  dt = new DateTime.fromMillisecondsSinceEpoch(-_MAX_MILLISECONDS, isUtc: true);
-  Expect.throws(() => new DateTime.utc(
-      dt.year, dt.month, dt.day, dt.hour, dt.minute, 0, 0, -1));
-}
-
-void main() {
-  testExtremes();
-}
diff --git a/tests/corelib_2/date_time_far_away_dates_test.dart b/tests/corelib_2/date_time_far_away_dates_test.dart
deleted file mode 100644
index a22fe0f5181..00000000000
--- a/tests/corelib_2/date_time_far_away_dates_test.dart
+++ /dev/null
@@ -1,109 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test program for DateTime, far away dates.
-
-// TODO(37442): Find far-away dates with milliseconds-since-epoch values that
-// are 'web' integers.
-
-bool get supportsMicroseconds =>
-    new DateTime.fromMicrosecondsSinceEpoch(1).microsecondsSinceEpoch == 1;
-
-void testFarAwayDates() {
-  DateTime dt =
-      new DateTime.fromMillisecondsSinceEpoch(1000000000000001, isUtc: true);
-  Expect.equals(33658, dt.year);
-  Expect.equals(9, dt.month);
-  Expect.equals(27, dt.day);
-  Expect.equals(1, dt.hour);
-  Expect.equals(46, dt.minute);
-  Expect.equals(40, dt.second);
-  Expect.equals(1, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-  dt = new DateTime.fromMillisecondsSinceEpoch(-1000000000000001, isUtc: true);
-  Expect.equals(-29719, dt.year);
-  Expect.equals(4, dt.month);
-  Expect.equals(5, dt.day);
-  Expect.equals(22, dt.hour);
-  Expect.equals(13, dt.minute);
-  Expect.equals(19, dt.second);
-  Expect.equals(999, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-  // Same with local zone.
-  dt = new DateTime.fromMillisecondsSinceEpoch(1000000000000001);
-  Expect.equals(33658, dt.year);
-  Expect.equals(9, dt.month);
-  Expect.equals(true, dt.day == 27 || dt.day == 26);
-  // Not much we can test for local hour.
-  Expect.equals(true, dt.hour >= 0 && dt.hour < 24);
-  // Timezones can have offsets down to 15 minute.
-  Expect.equals(true, dt.minute % 15 == 46 % 15);
-  Expect.equals(40, dt.second);
-  Expect.equals(1, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-  dt = new DateTime.fromMillisecondsSinceEpoch(-1000000000000001);
-  Expect.equals(-29719, dt.year);
-  Expect.equals(4, dt.month);
-  Expect.equals(true, 5 == dt.day || 6 == dt.day);
-  // Not much we can test for local hour.
-  Expect.equals(true, dt.hour >= 0 && dt.hour < 24);
-  // Timezones can have offsets down to 15 minute.
-  Expect.equals(true, dt.minute % 15 == 13);
-  Expect.equals(19, dt.second);
-  Expect.equals(999, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-
-  if (!supportsMicroseconds) return;
-  dt =
-      new DateTime.fromMicrosecondsSinceEpoch(1000000000000000001, isUtc: true);
-  Expect.equals(33658, dt.year);
-  Expect.equals(9, dt.month);
-  Expect.equals(27, dt.day);
-  Expect.equals(1, dt.hour);
-  Expect.equals(46, dt.minute);
-  Expect.equals(40, dt.second);
-  Expect.equals(0, dt.millisecond);
-  Expect.equals(1, dt.microsecond);
-  dt = new DateTime.fromMicrosecondsSinceEpoch(-1000000000000000001,
-      isUtc: true);
-  Expect.equals(-29719, dt.year);
-  Expect.equals(4, dt.month);
-  Expect.equals(5, dt.day);
-  Expect.equals(22, dt.hour);
-  Expect.equals(13, dt.minute);
-  Expect.equals(19, dt.second);
-  Expect.equals(999, dt.millisecond);
-  Expect.equals(999, dt.microsecond);
-  // Same with local zone.
-  dt = new DateTime.fromMicrosecondsSinceEpoch(1000000000000000001);
-  Expect.equals(33658, dt.year);
-  Expect.equals(9, dt.month);
-  Expect.equals(true, dt.day == 27 || dt.day == 26);
-  // Not much we can test for local hour.
-  Expect.equals(true, dt.hour >= 0 && dt.hour < 24);
-  // Timezones can have offsets down to 15 minute.
-  Expect.equals(true, dt.minute % 15 == 46 % 15);
-  Expect.equals(40, dt.second);
-  Expect.equals(0, dt.millisecond);
-  Expect.equals(1, dt.microsecond);
-  dt = new DateTime.fromMicrosecondsSinceEpoch(-1000000000000000001);
-  Expect.equals(-29719, dt.year);
-  Expect.equals(4, dt.month);
-  Expect.equals(true, 5 == dt.day || 6 == dt.day);
-  // Not much we can test for local hour.
-  Expect.equals(true, dt.hour >= 0 && dt.hour < 24);
-  // Timezones can have offsets down to 15 minute.
-  Expect.equals(true, dt.minute % 15 == 13);
-  Expect.equals(19, dt.second);
-  Expect.equals(999, dt.millisecond);
-  Expect.equals(999, dt.microsecond);
-}
-
-void main() {
-  testFarAwayDates();
-}
diff --git a/tests/corelib_2/date_time_js_modified_test.dart b/tests/corelib_2/date_time_js_modified_test.dart
deleted file mode 100644
index 5053c358561..00000000000
--- a/tests/corelib_2/date_time_js_modified_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// The JavaScript Date constructor 'corrects' 2-digit years NN to 19NN.
-// Verify that a DateTime with year 1 is created correctly.
-// Regression test for https://github.com/dart-lang/sdk/issues/42894
-
-main() {
-  var d = new DateTime(1, 0, 1, 0, 0, 0, 0);
-  var d2 = new DateTime(0, 12, 1, 0, 0, 0, 0);
-
-  Expect.equals(d, d2);
-}
diff --git a/tests/corelib_2/date_time_parse_test.dart b/tests/corelib_2/date_time_parse_test.dart
deleted file mode 100644
index eb3d48c3986..00000000000
--- a/tests/corelib_2/date_time_parse_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-check(DateTime expected, String str) {
-  DateTime actual = DateTime.parse(str);
-  Expect.equals(expected, actual); // Only checks if they are at the same time.
-  Expect.equals(expected.isUtc, actual.isUtc);
-}
-
-bool get supportsMicroseconds =>
-    new DateTime.fromMicrosecondsSinceEpoch(1).microsecondsSinceEpoch == 1;
-
-main() {
-  check(new DateTime(2012, 02, 27, 13, 27), "2012-02-27 13:27:00");
-  if (supportsMicroseconds) {
-    check(new DateTime.utc(2012, 02, 27, 13, 27, 0, 123, 456),
-        "2012-02-27 13:27:00.1234567891234z");
-    check(new DateTime.utc(2012, 02, 27, 13, 27, 0, 123, 456),
-        "2012-02-27 13:27:00,1234567891234z");
-  } else {
-    check(new DateTime.utc(2012, 02, 27, 13, 27, 0, 123, 0),
-        "2012-02-27 13:27:00.1234567891234z");
-    check(new DateTime.utc(2012, 02, 27, 13, 27, 0, 123, 0),
-        "2012-02-27 13:27:00,1234567891234z");
-  }
-  check(new DateTime(2012, 02, 27, 13, 27), "20120227 13:27:00");
-  check(new DateTime(2012, 02, 27, 13, 27), "20120227T132700");
-  check(new DateTime(2012, 02, 27), "20120227");
-  check(new DateTime(2012, 02, 27), "+20120227");
-  check(new DateTime.utc(2012, 02, 27, 14), "2012-02-27T14Z");
-  check(new DateTime.utc(-12345, 1, 1), "-123450101 00:00:00 Z");
-  check(new DateTime.utc(2012, 02, 27, 14), "2012-02-27T14+00");
-  check(new DateTime.utc(2012, 02, 27, 14), "2012-02-27T14+0000");
-  check(new DateTime.utc(2012, 02, 27, 14), "2012-02-27T14+00:00");
-  check(new DateTime.utc(2012, 02, 27, 14), "2012-02-27T14 +00:00");
-
-  check(new DateTime.utc(2015, 02, 14, 13, 0, 0, 0), "2015-02-15T00:00+11");
-  check(new DateTime.utc(2015, 02, 14, 13, 0, 0, 0), "2015-02-15T00:00:00+11");
-  check(
-      new DateTime.utc(2015, 02, 14, 13, 0, 0, 0), "2015-02-15T00:00:00+11:00");
-
-  if (supportsMicroseconds) {
-    check(new DateTime.utc(2015, 02, 15, 0, 0, 0, 500, 500),
-        "2015-02-15T00:00:00.500500Z");
-    check(new DateTime.utc(2015, 02, 15, 0, 0, 0, 511, 500),
-        "2015-02-15T00:00:00.511500Z");
-  } else {
-    check(new DateTime.utc(2015, 02, 15, 0, 0, 0, 501),
-        "2015-02-15T00:00:00.501Z");
-    check(new DateTime.utc(2015, 02, 15, 0, 0, 0, 512),
-        "2015-02-15T00:00:00.512Z");
-  }
-}
diff --git a/tests/corelib_2/date_time_test.dart b/tests/corelib_2/date_time_test.dart
deleted file mode 100644
index 09bbecd3b46..00000000000
--- a/tests/corelib_2/date_time_test.dart
+++ /dev/null
@@ -1,1237 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test program for DateTime.
-
-bool get supportsMicroseconds =>
-    new DateTime.fromMicrosecondsSinceEpoch(1).microsecondsSinceEpoch == 1;
-
-// Identical to _maxMillisecondsSinceEpoch in date_time.dart
-const int _MAX_MILLISECONDS = 8640000000000000;
-
-// Tests if the time moves eventually forward.
-void testNow() {
-  var t1 = new DateTime.now();
-  bool timeMovedForward = false;
-  const int N = 1000000;
-  outer:
-  while (true) {
-    for (int i = N; i > 0; i--) {
-      var t2 = new DateTime.now();
-      if (t1.millisecondsSinceEpoch < t2.millisecondsSinceEpoch) {
-        break outer;
-      }
-    }
-    print("testNow: No Date.now() progress in $N loops. Time: $t1");
-  }
-  Expect.isFalse(t1.isUtc);
-}
-
-void testMillisecondsSinceEpoch() {
-  var dt1 = new DateTime.now();
-  var millisecondsSinceEpoch = dt1.millisecondsSinceEpoch;
-  var dt2 = new DateTime.fromMillisecondsSinceEpoch(millisecondsSinceEpoch);
-  Expect.equals(millisecondsSinceEpoch, dt2.millisecondsSinceEpoch);
-}
-
-void testMicrosecondsSinceEpoch() {
-  var dt1 = new DateTime.fromMillisecondsSinceEpoch(1);
-  var microsecondsSinceEpoch = dt1.microsecondsSinceEpoch;
-  var dt2 = new DateTime.fromMicrosecondsSinceEpoch(microsecondsSinceEpoch);
-  Expect.equals(microsecondsSinceEpoch, dt2.microsecondsSinceEpoch);
-
-  dt1 = new DateTime.now();
-  microsecondsSinceEpoch = dt1.microsecondsSinceEpoch;
-  dt2 = new DateTime.fromMicrosecondsSinceEpoch(microsecondsSinceEpoch);
-  Expect.equals(microsecondsSinceEpoch, dt2.microsecondsSinceEpoch);
-}
-
-void testEquivalentYears() {
-  // All hardcoded values come from V8. This means that the values are not
-  // necessarily correct (see limitations of DateTime object in
-  // EcmaScript 15.9.1 and in particular 15.9.1.8/9).
-  DateTime dt =
-      new DateTime.fromMillisecondsSinceEpoch(-31485600000, isUtc: true);
-  Expect.equals(1969, dt.year);
-  Expect.equals(1, dt.month);
-  Expect.equals(1, dt.day);
-  Expect.equals(14, dt.hour);
-  Expect.equals(0, dt.minute);
-  Expect.equals(0, dt.second);
-  Expect.equals(0, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-  dt = new DateTime.fromMillisecondsSinceEpoch(-63108000000, isUtc: true);
-  Expect.equals(1968, dt.year);
-  Expect.equals(1, dt.month);
-  Expect.equals(1, dt.day);
-  Expect.equals(14, dt.hour);
-  Expect.equals(0, dt.minute);
-  Expect.equals(0, dt.second);
-  Expect.equals(0, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-  dt = new DateTime.fromMillisecondsSinceEpoch(-94644000000, isUtc: true);
-  Expect.equals(1967, dt.year);
-  Expect.equals(1, dt.month);
-  Expect.equals(1, dt.day);
-  Expect.equals(14, dt.hour);
-  Expect.equals(0, dt.minute);
-  Expect.equals(0, dt.second);
-  Expect.equals(0, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-  dt = new DateTime.fromMillisecondsSinceEpoch(-126180000000, isUtc: true);
-  Expect.equals(1966, dt.year);
-  Expect.equals(1, dt.month);
-  Expect.equals(1, dt.day);
-  Expect.equals(14, dt.hour);
-  Expect.equals(0, dt.minute);
-  Expect.equals(0, dt.second);
-  Expect.equals(0, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-  dt = new DateTime.fromMillisecondsSinceEpoch(-157716000000, isUtc: true);
-  Expect.equals(1965, dt.year);
-  Expect.equals(1, dt.month);
-  Expect.equals(1, dt.day);
-  Expect.equals(14, dt.hour);
-  Expect.equals(0, dt.minute);
-  Expect.equals(0, dt.second);
-  Expect.equals(0, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-  dt = new DateTime.fromMillisecondsSinceEpoch(-2177402400000, isUtc: true);
-  Expect.equals(1901, dt.year);
-  Expect.equals(1, dt.month);
-  Expect.equals(1, dt.day);
-  Expect.equals(14, dt.hour);
-  Expect.equals(0, dt.minute);
-  Expect.equals(0, dt.second);
-  Expect.equals(0, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-  dt = new DateTime.fromMillisecondsSinceEpoch(-5333076000000, isUtc: true);
-  Expect.equals(1801, dt.year);
-  Expect.equals(1, dt.month);
-  Expect.equals(1, dt.day);
-  Expect.equals(14, dt.hour);
-  Expect.equals(0, dt.minute);
-  Expect.equals(0, dt.second);
-  Expect.equals(0, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-  dt = new DateTime.fromMillisecondsSinceEpoch(-8520285600000, isUtc: true);
-  Expect.equals(1700, dt.year);
-  Expect.equals(1, dt.month);
-  Expect.equals(1, dt.day);
-  Expect.equals(14, dt.hour);
-  Expect.equals(0, dt.minute);
-  Expect.equals(0, dt.second);
-  Expect.equals(0, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-  dt = new DateTime.fromMillisecondsSinceEpoch(-14831719200000, isUtc: true);
-  Expect.equals(1500, dt.year);
-  Expect.equals(1, dt.month);
-  Expect.equals(1, dt.day);
-  Expect.equals(14, dt.hour);
-  Expect.equals(0, dt.minute);
-  Expect.equals(0, dt.second);
-  Expect.equals(0, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-  dt = new DateTime.fromMillisecondsSinceEpoch(-59011408800000, isUtc: true);
-  Expect.equals(100, dt.year);
-  Expect.equals(1, dt.month);
-  Expect.equals(1, dt.day);
-  Expect.equals(14, dt.hour);
-  Expect.equals(0, dt.minute);
-  Expect.equals(0, dt.second);
-  Expect.equals(0, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-  dt = new DateTime.fromMillisecondsSinceEpoch(-62011408800000, isUtc: true);
-  Expect.equals(4, dt.year);
-  Expect.equals(12, dt.month);
-  Expect.equals(8, dt.day);
-  Expect.equals(8, dt.hour);
-  Expect.equals(40, dt.minute);
-  Expect.equals(0, dt.second);
-  Expect.equals(0, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-  dt = new DateTime.fromMillisecondsSinceEpoch(-64011408800000, isUtc: true);
-  Expect.equals(-59, dt.year);
-  Expect.equals(7, dt.month);
-  Expect.equals(24, dt.day);
-  Expect.equals(5, dt.hour);
-  Expect.equals(6, dt.minute);
-  Expect.equals(40, dt.second);
-  Expect.equals(0, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-  final int SECONDS_YEAR_2035 = 2051222400;
-  dt = new DateTime.fromMillisecondsSinceEpoch(SECONDS_YEAR_2035 * 1000 + 1,
-      isUtc: true);
-  Expect.equals(2035, dt.year);
-  Expect.equals(1, dt.month);
-  Expect.equals(1, dt.day);
-  Expect.equals(0, dt.hour);
-  Expect.equals(0, dt.minute);
-  Expect.equals(0, dt.second);
-  Expect.equals(1, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-  dt = new DateTime.fromMillisecondsSinceEpoch(SECONDS_YEAR_2035 * 1000 - 1,
-      isUtc: true);
-  Expect.equals(2034, dt.year);
-  Expect.equals(12, dt.month);
-  Expect.equals(31, dt.day);
-  Expect.equals(23, dt.hour);
-  Expect.equals(59, dt.minute);
-  Expect.equals(59, dt.second);
-  Expect.equals(999, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-
-  dt = new DateTime.utc(2035, 1, 1, 0, 0, 0, 1);
-  Expect.equals(SECONDS_YEAR_2035 * 1000 + 1, dt.millisecondsSinceEpoch);
-  dt = new DateTime.utc(2034, 12, 31, 23, 59, 59, 999);
-  Expect.equals(SECONDS_YEAR_2035 * 1000 - 1, dt.millisecondsSinceEpoch);
-  dt = new DateTime.fromMillisecondsSinceEpoch(SECONDS_YEAR_2035 * 1000 + 1);
-  Expect.equals(
-      true,
-      (2035 == dt.year && 1 == dt.month && 1 == dt.day) ||
-          (2034 == dt.year && 12 == dt.month && 31 == dt.day));
-  Expect.equals(0, dt.second);
-  Expect.equals(1, dt.millisecond);
-  DateTime dt2 = new DateTime(
-      dt.year, dt.month, dt.day, dt.hour, dt.minute, dt.second, dt.millisecond);
-  Expect.equals(dt.millisecondsSinceEpoch, dt2.millisecondsSinceEpoch);
-  dt = new DateTime.fromMillisecondsSinceEpoch(SECONDS_YEAR_2035 * 1000 - 1);
-  Expect.equals(
-      true,
-      (2035 == dt.year && 1 == dt.month && 1 == dt.day) ||
-          (2034 == dt.year && 12 == dt.month && 31 == dt.day));
-  Expect.equals(59, dt.second);
-  Expect.equals(999, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-
-  dt2 = new DateTime(
-      dt.year, dt.month, dt.day, dt.hour, dt.minute, dt.second, dt.millisecond);
-  Expect.equals(dt.millisecondsSinceEpoch, dt2.millisecondsSinceEpoch);
-  dt = new DateTime.fromMillisecondsSinceEpoch(2100000000 * 1000, isUtc: true);
-  Expect.equals(2036, dt.year);
-  Expect.equals(7, dt.month);
-  Expect.equals(18, dt.day);
-  Expect.equals(13, dt.hour);
-  Expect.equals(20, dt.minute);
-  Expect.equals(0, dt.second);
-  Expect.equals(0, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-
-  // Internally this will use the maximum value for the native calls.
-  dt = new DateTime(2036, 7, 18, 13, 20);
-  Expect.equals(2036, dt.year);
-  Expect.equals(7, dt.month);
-  Expect.equals(18, dt.day);
-  Expect.equals(13, dt.hour);
-  Expect.equals(20, dt.minute);
-  Expect.equals(0, dt.second);
-  Expect.equals(0, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-  Expect.equals("2036-07-18 13:20:00.000", dt.toString());
-
-  if (!supportsMicroseconds) return;
-
-  dt = new DateTime.utc(2035, 1, 1, 0, 0, 0, 0, 1);
-  Expect.equals(SECONDS_YEAR_2035 * 1000000 + 1, dt.microsecondsSinceEpoch);
-  dt = new DateTime.utc(2034, 12, 31, 23, 59, 59, 999, 999);
-  Expect.equals(SECONDS_YEAR_2035 * 1000000 - 1, dt.microsecondsSinceEpoch);
-  dt = new DateTime.fromMicrosecondsSinceEpoch(SECONDS_YEAR_2035 * 1000000 + 1);
-  Expect.equals(
-      true,
-      (2035 == dt.year && 1 == dt.month && 1 == dt.day) ||
-          (2034 == dt.year && 12 == dt.month && 31 == dt.day));
-  Expect.equals(0, dt.second);
-  Expect.equals(0, dt.millisecond);
-  Expect.equals(1, dt.microsecond);
-  dt2 = new DateTime(dt.year, dt.month, dt.day, dt.hour, dt.minute, dt.second,
-      dt.millisecond, dt.microsecond);
-  Expect.equals(dt.microsecondsSinceEpoch, dt2.microsecondsSinceEpoch);
-  dt = new DateTime.fromMicrosecondsSinceEpoch(SECONDS_YEAR_2035 * 1000000 - 1);
-  Expect.equals(
-      true,
-      (2035 == dt.year && 1 == dt.month && 1 == dt.day) ||
-          (2034 == dt.year && 12 == dt.month && 31 == dt.day));
-  Expect.equals(59, dt.second);
-  Expect.equals(999, dt.millisecond);
-  Expect.equals(999, dt.microsecond);
-
-  dt2 = new DateTime(dt.year, dt.month, dt.day, dt.hour, dt.minute, dt.second,
-      dt.millisecond, dt.microsecond);
-  Expect.equals(dt.millisecondsSinceEpoch, dt2.millisecondsSinceEpoch);
-  dt = new DateTime.fromMicrosecondsSinceEpoch(2100000000 * 1000000,
-      isUtc: true);
-  Expect.equals(2036, dt.year);
-  Expect.equals(7, dt.month);
-  Expect.equals(18, dt.day);
-  Expect.equals(13, dt.hour);
-  Expect.equals(20, dt.minute);
-  Expect.equals(0, dt.second);
-  Expect.equals(0, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-}
-
-void testUTCGetters() {
-  var dt = new DateTime.fromMillisecondsSinceEpoch(1305140315000, isUtc: true);
-  Expect.equals(2011, dt.year);
-  Expect.equals(5, dt.month);
-  Expect.equals(11, dt.day);
-  Expect.equals(18, dt.hour);
-  Expect.equals(58, dt.minute);
-  Expect.equals(35, dt.second);
-  Expect.equals(0, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-  Expect.equals(true, dt.isUtc);
-  Expect.equals(1305140315000, dt.millisecondsSinceEpoch);
-  dt = new DateTime.fromMillisecondsSinceEpoch(-9999999, isUtc: true);
-  Expect.equals(1969, dt.year);
-  Expect.equals(12, dt.month);
-  Expect.equals(31, dt.day);
-  Expect.equals(21, dt.hour);
-  Expect.equals(13, dt.minute);
-  Expect.equals(20, dt.second);
-  Expect.equals(1, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-
-  if (!supportsMicroseconds) return;
-
-  dt = new DateTime.fromMicrosecondsSinceEpoch(-9999999999, isUtc: true);
-  Expect.equals(1969, dt.year);
-  Expect.equals(12, dt.month);
-  Expect.equals(31, dt.day);
-  Expect.equals(21, dt.hour);
-  Expect.equals(13, dt.minute);
-  Expect.equals(20, dt.second);
-  Expect.equals(0, dt.millisecond);
-  Expect.equals(1, dt.microsecond);
-}
-
-void testLocalGetters() {
-  var dt1 = new DateTime.fromMillisecondsSinceEpoch(1305140315000);
-  var dt2 = new DateTime.utc(dt1.year, dt1.month, dt1.day, dt1.hour, dt1.minute,
-      dt1.second, dt1.millisecond, dt1.microsecond);
-  Duration zoneOffset = dt1.difference(dt2);
-  Expect.equals(true, zoneOffset.inDays == 0);
-  Expect.equals(true, zoneOffset.inHours.abs() <= 12);
-  Expect.equals(dt1.year, dt2.year);
-  Expect.equals(dt1.month, dt2.month);
-  Expect.equals(true, (dt1.day - dt2.day).abs() <= 1);
-  Expect.equals(true, dt1.hour < 24);
-  // There are timezones with 0.5 or 0.25 hour offsets.
-  Expect.equals(
-      true,
-      (dt1.minute == dt2.minute) ||
-          ((dt1.minute - dt2.minute).abs() == 30) ||
-          ((dt1.minute - dt2.minute).abs() == 15));
-  Expect.equals(dt1.second, dt2.second);
-  Expect.equals(dt1.millisecond, dt2.millisecond);
-  Expect.equals(dt1.microsecond, dt2.microsecond);
-}
-
-void testConstructors() {
-  var dt0 = new DateTime.utc(2011, 5, 11, 18, 58, 35, 0, 0);
-  var dt0b = new DateTime.utc(2011, 5, 11, 18, 58, 35, 0, 0).toLocal();
-  Expect.equals(1305140315000, dt0.millisecondsSinceEpoch);
-  var dt1 = new DateTime.fromMillisecondsSinceEpoch(1305140315000);
-  Expect.equals(dt1.millisecondsSinceEpoch, dt0.millisecondsSinceEpoch);
-  Expect.equals(dt1.microsecondsSinceEpoch, dt0.microsecondsSinceEpoch);
-  Expect.equals(false, dt1 == dt0);
-  Expect.equals(true, dt1 == dt0b);
-  var dt3 = new DateTime(dt1.year, dt1.month, dt1.day, dt1.hour, dt1.minute,
-      dt1.second, dt1.millisecond, dt1.microsecond);
-  Expect.equals(dt1.millisecondsSinceEpoch, dt3.millisecondsSinceEpoch);
-  Expect.equals(dt1.microsecondsSinceEpoch, dt3.microsecondsSinceEpoch);
-  Expect.equals(false, dt3 == dt0);
-  Expect.equals(true, dt1 == dt3);
-  dt3 = new DateTime(dt1.year, dt1.month, dt1.day, dt1.hour, dt1.minute,
-      dt1.second, dt1.millisecond, dt1.microsecond);
-  Expect.equals(dt1.millisecondsSinceEpoch, dt3.millisecondsSinceEpoch);
-  Expect.equals(dt1.microsecondsSinceEpoch, dt3.microsecondsSinceEpoch);
-  Expect.equals(true, dt1 == dt3);
-  var dt2 = dt1.toLocal();
-  dt3 = new DateTime(2011, 5, dt1.day, dt1.hour, dt1.minute, 35, 0, 0);
-  Expect.equals(dt2.millisecondsSinceEpoch, dt3.millisecondsSinceEpoch);
-  Expect.equals(dt2.microsecondsSinceEpoch, dt3.microsecondsSinceEpoch);
-  Expect.equals(true, dt2 == dt3);
-  dt1 = new DateTime.fromMillisecondsSinceEpoch(-9999999, isUtc: true);
-  dt3 = new DateTime.utc(dt1.year, dt1.month, dt1.day, dt1.hour, dt1.minute,
-      dt1.second, dt1.millisecond);
-  Expect.equals(dt1.millisecondsSinceEpoch, dt3.millisecondsSinceEpoch);
-  Expect.equals(dt1.microsecondsSinceEpoch, dt3.microsecondsSinceEpoch);
-  dt3 = new DateTime.utc(99, 1, 2, 10, 11, 12, 0);
-  Expect.equals(99, dt3.year);
-  Expect.equals(1, dt3.month);
-  Expect.equals(2, dt3.day);
-  Expect.equals(10, dt3.hour);
-  Expect.equals(11, dt3.minute);
-  Expect.equals(12, dt3.second);
-  Expect.equals(0, dt3.millisecond);
-  Expect.equals(0, dt3.microsecond);
-  Expect.equals(true, dt3.isUtc);
-  var dt4 = new DateTime(99, 1, 2);
-  Expect.equals(99, dt4.year);
-  Expect.equals(1, dt4.month);
-  Expect.equals(2, dt4.day);
-  Expect.equals(0, dt4.hour);
-  Expect.equals(0, dt4.minute);
-  Expect.equals(0, dt4.second);
-  Expect.equals(0, dt4.millisecond);
-  Expect.equals(0, dt4.microsecond);
-  Expect.isFalse(dt4.isUtc);
-  var dt5 = new DateTime.utc(99, 1, 2);
-  Expect.equals(99, dt5.year);
-  Expect.equals(1, dt5.month);
-  Expect.equals(2, dt5.day);
-  Expect.equals(0, dt5.hour);
-  Expect.equals(0, dt5.minute);
-  Expect.equals(0, dt5.second);
-  Expect.equals(0, dt5.millisecond);
-  Expect.equals(0, dt5.microsecond);
-  Expect.isTrue(dt5.isUtc);
-  var dt6 = new DateTime(2012, 2, 27, 13, 27, 0);
-  Expect.equals(2012, dt6.year);
-  Expect.equals(2, dt6.month);
-  Expect.equals(27, dt6.day);
-  Expect.equals(13, dt6.hour);
-  Expect.equals(27, dt6.minute);
-  Expect.equals(0, dt6.second);
-  Expect.equals(0, dt6.millisecond);
-  Expect.equals(0, dt6.microsecond);
-  Expect.isFalse(dt6.isUtc);
-  var dt7 = new DateTime.utc(2012, 2, 27, 13, 27, 0);
-  Expect.equals(2012, dt7.year);
-  Expect.equals(2, dt7.month);
-  Expect.equals(27, dt7.day);
-  Expect.equals(13, dt7.hour);
-  Expect.equals(27, dt7.minute);
-  Expect.equals(0, dt7.second);
-  Expect.equals(0, dt7.millisecond);
-  Expect.equals(0, dt7.microsecond);
-  Expect.isTrue(dt7.isUtc);
-}
-
-void testChangeTimeZone() {
-  var dt1 = new DateTime.fromMillisecondsSinceEpoch(1305140315000);
-  var dt2 = dt1.toUtc();
-  Expect.equals(dt1.millisecondsSinceEpoch, dt2.millisecondsSinceEpoch);
-  var dt3 = new DateTime.fromMillisecondsSinceEpoch(1305140315000, isUtc: true);
-  Expect.equals(dt1.millisecondsSinceEpoch, dt3.millisecondsSinceEpoch);
-  Expect.equals(dt2.year, dt3.year);
-  Expect.equals(dt2.month, dt3.month);
-  Expect.equals(dt2.day, dt3.day);
-  Expect.equals(dt2.hour, dt3.hour);
-  Expect.equals(dt2.minute, dt3.minute);
-  Expect.equals(dt2.second, dt3.second);
-  Expect.equals(dt2.millisecond, dt3.millisecond);
-  Expect.equals(dt2.microsecond, dt3.microsecond);
-  var dt4 = dt3.toLocal();
-  Expect.equals(dt1.year, dt4.year);
-  Expect.equals(dt1.month, dt4.month);
-  Expect.equals(dt1.day, dt4.day);
-  Expect.equals(dt1.hour, dt4.hour);
-  Expect.equals(dt1.minute, dt4.minute);
-  Expect.equals(dt1.second, dt4.second);
-  Expect.equals(dt1.millisecond, dt4.millisecond);
-  Expect.equals(dt1.microsecond, dt4.microsecond);
-}
-
-void testSubAdd() {
-  var dt1 = new DateTime.fromMillisecondsSinceEpoch(1305140315000, isUtc: true);
-  var dt2 = dt1
-      .add(new Duration(milliseconds: 3 * Duration.millisecondsPerSecond + 5));
-  Expect.equals(dt1.year, dt2.year);
-  Expect.equals(dt1.month, dt2.month);
-  Expect.equals(dt1.day, dt2.day);
-  Expect.equals(dt1.hour, dt2.hour);
-  Expect.equals(dt1.minute, dt2.minute);
-  Expect.equals(dt1.second + 3, dt2.second);
-  Expect.equals(dt1.millisecond + 5, dt2.millisecond);
-  Expect.equals(dt1.microsecond, dt2.microsecond);
-  var dt3 = dt2.subtract(
-      new Duration(milliseconds: 3 * Duration.millisecondsPerSecond + 5));
-  Expect.equals(true, dt1 == dt3);
-  Expect.equals(false, dt1 == dt2);
-
-  if (!supportsMicroseconds) return;
-
-  dt1 = new DateTime.fromMillisecondsSinceEpoch(1305140315000, isUtc: true);
-  dt2 = dt1
-      .add(new Duration(microseconds: 3 * Duration.microsecondsPerSecond + 5));
-  Expect.equals(dt1.year, dt2.year);
-  Expect.equals(dt1.month, dt2.month);
-  Expect.equals(dt1.day, dt2.day);
-  Expect.equals(dt1.hour, dt2.hour);
-  Expect.equals(dt1.minute, dt2.minute);
-  Expect.equals(dt1.second + 3, dt2.second);
-  Expect.equals(dt1.millisecond, dt2.millisecond);
-  Expect.equals(dt1.microsecond + 5, dt2.microsecond);
-  dt3 = dt2.subtract(
-      new Duration(microseconds: 3 * Duration.microsecondsPerSecond + 5));
-  Expect.equals(true, dt1 == dt3);
-  Expect.equals(false, dt1 == dt2);
-}
-
-void testUnderflowAndOverflow() {
-  int microsecond = supportsMicroseconds ? 499 : 0;
-  final dtBase = new DateTime(2012, 6, 20, 12, 30, 30, 500, microsecond);
-
-  // Millisecond
-  print("  >>> Millisecond+");
-  var dt = new DateTime(dtBase.year, dtBase.month, dtBase.day, dtBase.hour,
-      dtBase.minute, dtBase.second, 1000, dtBase.microsecond);
-  Expect.equals(dtBase.year, dt.year);
-  Expect.equals(dtBase.month, dt.month);
-  Expect.equals(dtBase.day, dt.day);
-  Expect.equals(dtBase.hour, dt.hour);
-  Expect.equals(dtBase.minute, dt.minute);
-  Expect.equals(dtBase.second + 1, dt.second);
-  Expect.equals(0, dt.millisecond);
-  Expect.equals(dtBase.microsecond, dt.microsecond);
-
-  print("  >>> Millisecond-");
-  dt = new DateTime(dtBase.year, dtBase.month, dtBase.day, dtBase.hour,
-      dtBase.minute, dtBase.second, -1000, dtBase.microsecond);
-  Expect.equals(dtBase.year, dt.year);
-  Expect.equals(dtBase.month, dt.month);
-  Expect.equals(dtBase.day, dt.day);
-  Expect.equals(dtBase.hour, dt.hour);
-  Expect.equals(dtBase.minute, dt.minute);
-  Expect.equals(dtBase.second - 1, dt.second);
-  Expect.equals(0, dt.millisecond);
-  Expect.equals(dtBase.microsecond, dt.microsecond);
-
-  // Second
-  print("  >>> Second+");
-  dt = new DateTime(dtBase.year, dtBase.month, dtBase.day, dtBase.hour,
-      dtBase.minute, 60, dtBase.millisecond, dtBase.microsecond);
-  Expect.equals(dtBase.year, dt.year);
-  Expect.equals(dtBase.month, dt.month);
-  Expect.equals(dtBase.day, dt.day);
-  Expect.equals(dtBase.hour, dt.hour);
-  Expect.equals(dtBase.minute + 1, dt.minute);
-  Expect.equals(0, dt.second);
-  Expect.equals(dtBase.millisecond, dt.millisecond);
-  Expect.equals(dtBase.microsecond, dt.microsecond);
-
-  print("  >>> Second-");
-  dt = new DateTime(dtBase.year, dtBase.month, dtBase.day, dtBase.hour,
-      dtBase.minute, -60, dtBase.millisecond, dtBase.microsecond);
-  Expect.equals(dtBase.year, dt.year);
-  Expect.equals(dtBase.month, dt.month);
-  Expect.equals(dtBase.day, dt.day);
-  Expect.equals(dtBase.hour, dt.hour);
-  Expect.equals(dtBase.minute - 1, dt.minute);
-  Expect.equals(0, dt.second);
-  Expect.equals(dtBase.millisecond, dt.millisecond);
-  Expect.equals(dtBase.microsecond, dt.microsecond);
-
-  // Minute
-  print("  >>> Minute+");
-  dt = new DateTime(dtBase.year, dtBase.month, dtBase.day, dtBase.hour, 60,
-      dtBase.second, dtBase.millisecond, dtBase.microsecond);
-  Expect.equals(dtBase.year, dt.year);
-  Expect.equals(dtBase.month, dt.month);
-  Expect.equals(dtBase.day, dt.day);
-  Expect.equals(dtBase.hour + 1, dt.hour);
-  Expect.equals(0, dt.minute);
-  Expect.equals(dtBase.second, dt.second);
-  Expect.equals(dtBase.millisecond, dt.millisecond);
-  Expect.equals(dtBase.microsecond, dt.microsecond);
-
-  print("  >>> Minute-");
-  dt = new DateTime(dtBase.year, dtBase.month, dtBase.day, dtBase.hour, -60,
-      dtBase.second, dtBase.millisecond, dtBase.microsecond);
-  Expect.equals(dtBase.year, dt.year);
-  Expect.equals(dtBase.month, dt.month);
-  Expect.equals(dtBase.day, dt.day);
-  Expect.equals(dtBase.hour - 1, dt.hour);
-  Expect.equals(0, dt.minute);
-  Expect.equals(dtBase.second, dt.second);
-  Expect.equals(dtBase.millisecond, dt.millisecond);
-  Expect.equals(dtBase.microsecond, dt.microsecond);
-
-  // Hour
-  print("  >>> Hour+");
-  dt = new DateTime(dtBase.year, dtBase.month, dtBase.day, 24, dtBase.minute,
-      dtBase.second, dtBase.millisecond, dtBase.microsecond);
-  Expect.equals(dtBase.year, dt.year);
-  Expect.equals(dtBase.month, dt.month);
-  Expect.equals(dtBase.day + 1, dt.day);
-  Expect.equals(0, dt.hour);
-  Expect.equals(dtBase.minute, dt.minute);
-  Expect.equals(dtBase.second, dt.second);
-  Expect.equals(dtBase.millisecond, dt.millisecond);
-  Expect.equals(dtBase.microsecond, dt.microsecond);
-
-  print("  >>> Hour-");
-  dt = new DateTime(dtBase.year, dtBase.month, dtBase.day, -24, dtBase.minute,
-      dtBase.second, dtBase.millisecond, dtBase.microsecond);
-  Expect.equals(dtBase.year, dt.year);
-  Expect.equals(dtBase.month, dt.month);
-  Expect.equals(dtBase.day - 1, dt.day);
-  Expect.equals(0, dt.hour);
-  Expect.equals(dtBase.minute, dt.minute);
-  Expect.equals(dtBase.second, dt.second);
-  Expect.equals(dtBase.millisecond, dt.millisecond);
-  Expect.equals(dtBase.microsecond, dt.microsecond);
-
-  // Day
-  print("  >>> Day+");
-  dt = new DateTime(dtBase.year, dtBase.month, 31, dtBase.hour, dtBase.minute,
-      dtBase.second, dtBase.millisecond, dtBase.microsecond);
-  Expect.equals(dtBase.year, dt.year);
-  Expect.equals(dtBase.month + 1, dt.month);
-  Expect.equals(1, dt.day);
-  Expect.equals(dtBase.hour, dt.hour);
-  Expect.equals(dtBase.minute, dt.minute);
-  Expect.equals(dtBase.second, dt.second);
-  Expect.equals(dtBase.millisecond, dt.millisecond);
-  Expect.equals(dtBase.microsecond, dt.microsecond);
-
-  print("  >>> Day-");
-  dt = new DateTime(dtBase.year, dtBase.month, -30, dtBase.hour, dtBase.minute,
-      dtBase.second, dtBase.millisecond, dtBase.microsecond);
-  Expect.equals(dtBase.year, dt.year);
-  Expect.equals(dtBase.month - 1, dt.month);
-  Expect.equals(1, dt.day);
-  Expect.equals(dtBase.hour, dt.hour);
-  Expect.equals(dtBase.minute, dt.minute);
-  Expect.equals(dtBase.second, dt.second);
-  Expect.equals(dtBase.millisecond, dt.millisecond);
-  Expect.equals(dtBase.microsecond, dt.microsecond);
-
-  // Month
-  print("  >>> Month+");
-  dt = new DateTime(dtBase.year, 13, dtBase.day, dtBase.hour, dtBase.minute,
-      dtBase.second, dtBase.millisecond, dtBase.microsecond);
-  Expect.equals(dtBase.year + 1, dt.year);
-  Expect.equals(1, dt.month);
-  Expect.equals(dtBase.day, dt.day);
-  Expect.equals(dtBase.hour, dt.hour);
-  Expect.equals(dtBase.minute, dt.minute);
-  Expect.equals(dtBase.second, dt.second);
-  Expect.equals(dtBase.millisecond, dt.millisecond);
-  Expect.equals(dtBase.microsecond, dt.microsecond);
-
-  print("  >>> Month-");
-  dt = new DateTime(dtBase.year, -11, dtBase.day, dtBase.hour, dtBase.minute,
-      dtBase.second, dtBase.millisecond, dtBase.microsecond);
-  Expect.equals(dtBase.year - 1, dt.year);
-  Expect.equals(1, dt.month);
-  Expect.equals(dtBase.day, dt.day);
-  Expect.equals(dtBase.hour, dt.hour);
-  Expect.equals(dtBase.minute, dt.minute);
-  Expect.equals(dtBase.second, dt.second);
-  Expect.equals(dtBase.millisecond, dt.millisecond);
-  Expect.equals(dtBase.microsecond, dt.microsecond);
-
-  // Flowing all the way up the chain.
-  print("  >>> Flow+");
-  var dtBase1 = new DateTime(2012, 12, 31, 23, 59, 59, 999, 000);
-  var dtTick = new DateTime(
-      dtBase1.year,
-      dtBase1.month,
-      dtBase1.day,
-      dtBase1.hour,
-      dtBase1.minute,
-      dtBase1.second,
-      dtBase1.millisecond + 1,
-      dtBase1.microsecond);
-  Expect.equals(dtBase1.year + 1, dtTick.year);
-  Expect.equals(1, dtTick.month);
-  Expect.equals(1, dtTick.day);
-  Expect.equals(0, dtTick.hour);
-  Expect.equals(0, dtTick.minute);
-  Expect.equals(0, dtTick.second);
-  Expect.equals(0, dtTick.millisecond);
-  Expect.equals(0, dtTick.microsecond);
-
-  print("  >>> Flow-");
-  dtBase1 = new DateTime(2012, 1, 1, 0, 0, 0, 0);
-  dtTick = new DateTime(
-      dtBase1.year,
-      dtBase1.month,
-      dtBase1.day,
-      dtBase1.hour,
-      dtBase1.minute,
-      dtBase1.second,
-      dtBase1.millisecond - 1,
-      dtBase1.microsecond);
-  Expect.equals(dtBase1.year - 1, dtTick.year);
-  Expect.equals(12, dtTick.month);
-  Expect.equals(31, dtTick.day);
-  Expect.equals(23, dtTick.hour);
-  Expect.equals(59, dtTick.minute);
-  Expect.equals(59, dtTick.second);
-  Expect.equals(999, dtTick.millisecond);
-  Expect.equals(0, dtTick.microsecond);
-
-  print("  >>> extra underflow");
-  dtTick = new DateTime(dtBase1.year, dtBase1.month, dtBase1.day, -17520,
-      dtBase1.minute, dtBase1.second, dtBase1.millisecond, dtBase1.microsecond);
-  Expect.equals(dtBase1.year - 2, dtTick.year);
-  Expect.equals(dtBase1.month, dtTick.month);
-  Expect.equals(dtBase1.day, dtTick.day);
-  Expect.equals(dtBase1.hour, dtTick.hour);
-  Expect.equals(dtBase1.minute, dtTick.minute);
-  Expect.equals(dtBase1.second, dtTick.second);
-  Expect.equals(dtBase1.millisecond, dtTick.millisecond);
-  Expect.equals(dtBase1.microsecond, dtTick.microsecond);
-
-  if (!supportsMicroseconds) return;
-
-  // Microsecond
-  print("  >>> Microsecond+");
-  dt = new DateTime(dtBase.year, dtBase.month, dtBase.day, dtBase.hour,
-      dtBase.minute, dtBase.second, dtBase.millisecond, 1000);
-  Expect.equals(dtBase.year, dt.year);
-  Expect.equals(dtBase.month, dt.month);
-  Expect.equals(dtBase.day, dt.day);
-  Expect.equals(dtBase.hour, dt.hour);
-  Expect.equals(dtBase.minute, dt.minute);
-  Expect.equals(dtBase.second, dt.second);
-  Expect.equals(dtBase.millisecond + 1, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-
-  print("  >>> Microsecond-");
-  dt = new DateTime(dtBase.year, dtBase.month, dtBase.day, dtBase.hour,
-      dtBase.minute, dtBase.second, dtBase.millisecond, -1000);
-  Expect.equals(dtBase.year, dt.year);
-  Expect.equals(dtBase.month, dt.month);
-  Expect.equals(dtBase.day, dt.day);
-  Expect.equals(dtBase.hour, dt.hour);
-  Expect.equals(dtBase.minute, dt.minute);
-  Expect.equals(dtBase.second, dt.second);
-  Expect.equals(dtBase.millisecond - 1, dt.millisecond);
-  Expect.equals(0, dt.microsecond);
-
-  // Flowing all the way up the chain.
-  print("  >>> Flow+ 2");
-  dtBase1 = new DateTime(2012, 12, 31, 23, 59, 59, 999, 999);
-  dtTick = new DateTime(
-      dtBase1.year,
-      dtBase1.month,
-      dtBase1.day,
-      dtBase1.hour,
-      dtBase1.minute,
-      dtBase1.second,
-      dtBase1.millisecond,
-      dtBase1.microsecond + 1);
-  Expect.equals(dtBase1.year + 1, dtTick.year);
-  Expect.equals(1, dtTick.month);
-  Expect.equals(1, dtTick.day);
-  Expect.equals(0, dtTick.hour);
-  Expect.equals(0, dtTick.minute);
-  Expect.equals(0, dtTick.second);
-  Expect.equals(0, dtTick.millisecond);
-  Expect.equals(0, dtTick.microsecond);
-
-  print("  >>> Flow- 2");
-  dtBase1 = new DateTime(2012, 1, 1, 0, 0, 0, 0, 0);
-  dtTick = new DateTime(
-      dtBase1.year,
-      dtBase1.month,
-      dtBase1.day,
-      dtBase1.hour,
-      dtBase1.minute,
-      dtBase1.second,
-      dtBase1.millisecond,
-      dtBase1.microsecond - 1);
-  Expect.equals(dtBase1.year - 1, dtTick.year);
-  Expect.equals(12, dtTick.month);
-  Expect.equals(31, dtTick.day);
-  Expect.equals(23, dtTick.hour);
-  Expect.equals(59, dtTick.minute);
-  Expect.equals(59, dtTick.second);
-  Expect.equals(999, dtTick.millisecond);
-  Expect.equals(999, dtTick.microsecond);
-}
-
-void testDateStrings() {
-  // TODO(floitsch): Clean up the DateTime API that deals with strings.
-  var dt1 = DateTime.parse("2011-05-11 18:58:35Z");
-  Expect.equals(1305140315000, dt1.millisecondsSinceEpoch);
-  Expect.isTrue(dt1.isUtc);
-  dt1 = DateTime.parse("20110511 18:58:35z");
-  Expect.equals(1305140315000, dt1.millisecondsSinceEpoch);
-  Expect.isTrue(dt1.isUtc);
-  dt1 = DateTime.parse("+20110511 18:58:35z");
-  Expect.equals(1305140315000, dt1.millisecondsSinceEpoch);
-  Expect.isTrue(dt1.isUtc);
-  var str = dt1.toString();
-  var dt2 = DateTime.parse(str);
-  Expect.equals(true, dt1 == dt2);
-  var dt3 = dt1.toUtc();
-  str = dt3.toString();
-  Expect.equals("2011-05-11 18:58:35.000Z", str);
-  var dt4 = DateTime.parse("-1234-01-01 00:00:00Z");
-  Expect.equals(-1234, dt4.year);
-  Expect.equals(1, dt4.month);
-  Expect.equals(1, dt4.day);
-  Expect.equals(0, dt4.hour);
-  Expect.equals(0, dt4.minute);
-  Expect.equals(0, dt4.second);
-  Expect.equals(0, dt4.millisecond);
-  Expect.equals(0, dt4.microsecond);
-  Expect.isTrue(dt4.isUtc);
-  var dt5 = DateTime.parse("0099-01-02");
-  Expect.equals(99, dt5.year);
-  Expect.equals(1, dt5.month);
-  Expect.equals(2, dt5.day);
-  Expect.equals(0, dt5.hour);
-  Expect.equals(0, dt5.minute);
-  Expect.equals(0, dt5.second);
-  Expect.equals(0, dt5.millisecond);
-  Expect.equals(0, dt5.microsecond);
-  Expect.isFalse(dt5.isUtc);
-  var dt6 = DateTime.parse("2012-01-01 00:00:10.012");
-  Expect.equals(12, dt6.millisecond);
-  Expect.equals(0, dt6.microsecond);
-  dt6 = DateTime.parse("2012-01-01 00:00:10.003");
-  Expect.equals(3, dt6.millisecond);
-  Expect.equals(0, dt6.microsecond);
-  dt6 = DateTime.parse("2012-01-01 00:00:10.5");
-  Expect.equals(500, dt6.millisecond);
-  Expect.equals(0, dt6.microsecond);
-  dt6 = DateTime.parse("2012-01-01 00:00:10.003Z");
-  Expect.equals(3, dt6.millisecond);
-  Expect.equals(0, dt6.microsecond);
-  dt6 = DateTime.parse("2012-01-01 00:00:10.5z");
-  Expect.equals(500, dt6.millisecond);
-  Expect.equals(0, dt6.microsecond);
-  var dt7 = DateTime.parse("2011-05-11T18:58:35Z");
-  Expect.equals(1305140315000, dt7.millisecondsSinceEpoch);
-  var dt8 = DateTime.parse("-1234-01-01T00:00:00Z");
-  Expect.equals(-1234, dt8.year);
-  Expect.equals(1, dt8.month);
-  Expect.equals(1, dt8.day);
-  Expect.equals(0, dt8.hour);
-  Expect.equals(0, dt8.minute);
-  Expect.equals(0, dt8.second);
-  Expect.equals(0, dt8.millisecond);
-  Expect.equals(0, dt8.microsecond);
-  Expect.isTrue(dt8.isUtc);
-  var dt9 = DateTime.parse("-1234-01-01T00:00:00");
-  Expect.equals(-1234, dt9.year);
-  Expect.equals(1, dt9.month);
-  Expect.equals(1, dt9.day);
-  Expect.equals(0, dt9.hour);
-  Expect.equals(0, dt9.minute);
-  Expect.equals(0, dt9.second);
-  Expect.equals(0, dt9.millisecond);
-  Expect.equals(0, dt9.microsecond);
-  Expect.isFalse(dt9.isUtc);
-  var dt10 = DateTime.parse("-12340101");
-  Expect.equals(-1234, dt10.year);
-  Expect.equals(1, dt10.month);
-  Expect.equals(1, dt10.day);
-  Expect.equals(0, dt10.hour);
-  Expect.equals(0, dt10.minute);
-  Expect.equals(0, dt10.second);
-  Expect.equals(0, dt10.millisecond);
-  Expect.equals(0, dt10.microsecond);
-  Expect.isFalse(dt10.isUtc);
-  dt1 = DateTime.parse("2012-02-27 13:27:00");
-  Expect.equals(2012, dt1.year);
-  Expect.equals(2, dt1.month);
-  Expect.equals(27, dt1.day);
-  Expect.equals(13, dt1.hour);
-  Expect.equals(27, dt1.minute);
-  Expect.equals(0, dt1.second);
-  Expect.equals(0, dt1.millisecond);
-  Expect.equals(0, dt1.microsecond);
-  Expect.equals(false, dt1.isUtc);
-  dt1 = DateTime.parse("2012-02-27 13:27:00.423z");
-  Expect.equals(2012, dt1.year);
-  Expect.equals(2, dt1.month);
-  Expect.equals(27, dt1.day);
-  Expect.equals(13, dt1.hour);
-  Expect.equals(27, dt1.minute);
-  Expect.equals(0, dt1.second);
-  Expect.equals(423, dt1.millisecond);
-  Expect.equals(0, dt1.microsecond);
-  Expect.equals(true, dt1.isUtc);
-  dt1 = DateTime.parse("20120227 13:27:00");
-  Expect.equals(2012, dt1.year);
-  Expect.equals(2, dt1.month);
-  Expect.equals(27, dt1.day);
-  Expect.equals(13, dt1.hour);
-  Expect.equals(27, dt1.minute);
-  Expect.equals(0, dt1.second);
-  Expect.equals(0, dt1.millisecond);
-  Expect.equals(0, dt1.microsecond);
-  Expect.equals(false, dt1.isUtc);
-  dt1 = DateTime.parse("20120227T132700");
-  Expect.equals(2012, dt1.year);
-  Expect.equals(2, dt1.month);
-  Expect.equals(27, dt1.day);
-  Expect.equals(13, dt1.hour);
-  Expect.equals(27, dt1.minute);
-  Expect.equals(0, dt1.second);
-  Expect.equals(0, dt1.millisecond);
-  Expect.equals(0, dt1.microsecond);
-  Expect.equals(false, dt1.isUtc);
-  dt1 = DateTime.parse("20120227");
-  Expect.equals(2012, dt1.year);
-  Expect.equals(2, dt1.month);
-  Expect.equals(27, dt1.day);
-  Expect.equals(0, dt1.hour);
-  Expect.equals(0, dt1.minute);
-  Expect.equals(0, dt1.second);
-  Expect.equals(0, dt1.millisecond);
-  Expect.equals(0, dt1.microsecond);
-  Expect.equals(false, dt1.isUtc);
-  dt1 = DateTime.parse("2012-02-27T14Z");
-  Expect.equals(2012, dt1.year);
-  Expect.equals(2, dt1.month);
-  Expect.equals(27, dt1.day);
-  Expect.equals(14, dt1.hour);
-  Expect.equals(0, dt1.minute);
-  Expect.equals(0, dt1.second);
-  Expect.equals(0, dt1.millisecond);
-  Expect.equals(0, dt1.microsecond);
-  Expect.equals(true, dt1.isUtc);
-  dt1 = DateTime.parse("-123450101 00:00:00 Z");
-  Expect.equals(-12345, dt1.year);
-  Expect.equals(1, dt1.month);
-  Expect.equals(1, dt1.day);
-  Expect.equals(0, dt1.hour);
-  Expect.equals(0, dt1.minute);
-  Expect.equals(0, dt1.second);
-  Expect.equals(0, dt1.millisecond);
-  Expect.equals(0, dt1.microsecond);
-  Expect.equals(true, dt1.isUtc);
-  dt1 = DateTime.parse("1999-01-02 23:59:59.99951");
-  if (supportsMicroseconds) {
-    Expect.equals(1999, dt1.year);
-    Expect.equals(1, dt1.month);
-    Expect.equals(2, dt1.day);
-    Expect.equals(23, dt1.hour);
-    Expect.equals(59, dt1.minute);
-    Expect.equals(59, dt1.second);
-    Expect.equals(999, dt1.millisecond);
-    Expect.equals(510, dt1.microsecond);
-  } else {
-    // We only support millisecond. If the user supplies more data (the "51"
-    // here), we round.
-    Expect.equals(1999, dt1.year);
-    Expect.equals(1, dt1.month);
-    Expect.equals(3, dt1.day);
-    Expect.equals(0, dt1.hour);
-    Expect.equals(0, dt1.minute);
-    Expect.equals(0, dt1.second);
-    Expect.equals(0, dt1.millisecond);
-    Expect.equals(0, dt1.microsecond);
-  }
-  Expect.equals(false, dt1.isUtc);
-  dt1 = DateTime.parse("1999-01-02 23:58:59.99951Z");
-  if (supportsMicroseconds) {
-    Expect.equals(1999, dt1.year);
-    Expect.equals(1, dt1.month);
-    Expect.equals(2, dt1.day);
-    Expect.equals(23, dt1.hour);
-    Expect.equals(58, dt1.minute);
-    Expect.equals(59, dt1.second);
-    Expect.equals(999, dt1.millisecond);
-    Expect.equals(510, dt1.microsecond);
-  } else {
-    Expect.equals(1999, dt1.year);
-    Expect.equals(1, dt1.month);
-    Expect.equals(2, dt1.day);
-    Expect.equals(23, dt1.hour);
-    Expect.equals(59, dt1.minute);
-    Expect.equals(0, dt1.second);
-    Expect.equals(0, dt1.millisecond);
-    Expect.equals(0, dt1.microsecond);
-  }
-  Expect.equals(true, dt1.isUtc);
-  dt1 = DateTime.parse("0009-09-09 09:09:09.009Z");
-  Expect.equals(9, dt1.year);
-  Expect.equals(9, dt1.month);
-  Expect.equals(9, dt1.day);
-  Expect.equals(9, dt1.hour);
-  Expect.equals(9, dt1.minute);
-  Expect.equals(9, dt1.second);
-  Expect.equals(9, dt1.millisecond);
-  Expect.equals(true, dt1.isUtc);
-  dt1 = DateTime.parse("0009-09-09 09:09:09.009-00");
-  Expect.equals(9, dt1.year);
-  Expect.equals(9, dt1.month);
-  Expect.equals(9, dt1.day);
-  Expect.equals(9, dt1.hour);
-  Expect.equals(9, dt1.minute);
-  Expect.equals(9, dt1.second);
-  Expect.equals(9, dt1.millisecond);
-  Expect.equals(true, dt1.isUtc);
-  dt1 = DateTime.parse("0009-09-09 09:09:09.009-0000");
-  Expect.equals(9, dt1.year);
-  Expect.equals(9, dt1.month);
-  Expect.equals(9, dt1.day);
-  Expect.equals(9, dt1.hour);
-  Expect.equals(9, dt1.minute);
-  Expect.equals(9, dt1.second);
-  Expect.equals(9, dt1.millisecond);
-  Expect.equals(true, dt1.isUtc);
-  dt1 = DateTime.parse("0009-09-09 09:09:09.009-02");
-  Expect.equals(9, dt1.year);
-  Expect.equals(9, dt1.month);
-  Expect.equals(9, dt1.day);
-  Expect.equals(11, dt1.hour);
-  Expect.equals(9, dt1.minute);
-  Expect.equals(9, dt1.second);
-  Expect.equals(9, dt1.millisecond);
-  Expect.equals(true, dt1.isUtc);
-  dt1 = DateTime.parse("0009-09-09 09:09:09.009+0200");
-  Expect.equals(9, dt1.year);
-  Expect.equals(9, dt1.month);
-  Expect.equals(9, dt1.day);
-  Expect.equals(7, dt1.hour);
-  Expect.equals(9, dt1.minute);
-  Expect.equals(9, dt1.second);
-  Expect.equals(9, dt1.millisecond);
-  Expect.equals(true, dt1.isUtc);
-  dt1 = DateTime.parse("0009-09-09 09:09:09.009+1200");
-  Expect.equals(9, dt1.year);
-  Expect.equals(9, dt1.month);
-  Expect.equals(8, dt1.day);
-  Expect.equals(21, dt1.hour);
-  Expect.equals(9, dt1.minute);
-  Expect.equals(9, dt1.second);
-  Expect.equals(9, dt1.millisecond);
-  Expect.equals(true, dt1.isUtc);
-  dt1 = DateTime.parse("0009-09-09 09:09:09.009-1200");
-  Expect.equals(9, dt1.year);
-  Expect.equals(9, dt1.month);
-  Expect.equals(9, dt1.day);
-  Expect.equals(21, dt1.hour);
-  Expect.equals(9, dt1.minute);
-  Expect.equals(9, dt1.second);
-  Expect.equals(9, dt1.millisecond);
-  Expect.equals(true, dt1.isUtc);
-  dt1 = DateTime.parse("0009-09-09 09:09:09.009-0230");
-  Expect.equals(9, dt1.year);
-  Expect.equals(9, dt1.month);
-  Expect.equals(9, dt1.day);
-  Expect.equals(11, dt1.hour);
-  Expect.equals(39, dt1.minute);
-  Expect.equals(9, dt1.second);
-  Expect.equals(9, dt1.millisecond);
-  Expect.equals(true, dt1.isUtc);
-  dt1 = DateTime.parse("0009-09-09 09:09:09.009-2134");
-  Expect.equals(9, dt1.year);
-  Expect.equals(9, dt1.month);
-  Expect.equals(10, dt1.day);
-  Expect.equals(6, dt1.hour);
-  Expect.equals(43, dt1.minute);
-  Expect.equals(9, dt1.second);
-  Expect.equals(9, dt1.millisecond);
-  Expect.equals(true, dt1.isUtc);
-
-  Expect.throwsFormatException(() => DateTime.parse("bad"));
-  var bad_year =
-      1970 + (_MAX_MILLISECONDS ~/ (1000 * 60 * 60 * 24 * 365.2425)) + 1;
-  Expect.throwsFormatException(
-      () => DateTime.parse(bad_year.toString() + "-01-01"));
-  // The last valid time; should not throw.
-  dt1 = DateTime.parse("275760-09-13T00:00:00.000Z");
-  Expect.throwsFormatException(
-      () => DateTime.parse("275760-09-14T00:00:00.000Z"));
-  Expect.throwsFormatException(
-      () => DateTime.parse("275760-09-13T00:00:00.001Z"));
-  if (supportsMicroseconds) {
-    Expect.throwsFormatException(
-        () => DateTime.parse("275760-09-13T00:00:00.000001Z"));
-  } else {
-    dt1 = DateTime.parse("275760-09-13T00:00:00.000001Z");
-  }
-
-  // first valid time; should not throw.
-  dt1 = DateTime.parse("-271821-04-20T00:00:00.000Z");
-  Expect.throwsFormatException(
-      () => DateTime.parse("-271821-04-19T23:59:59.999Z"));
-
-  if (supportsMicroseconds) {
-    Expect.throwsFormatException(
-        () => DateTime.parse("-271821-04-19T23:59:59.999999Z"));
-  }
-}
-
-void testWeekday() {
-  // 2011-10-06 is Summertime.
-  var d = new DateTime(2011, 10, 6, 0, 45, 37, 0);
-  Expect.equals(DateTime.thursday, d.weekday);
-  d = new DateTime.utc(2011, 10, 6, 0, 45, 37, 0);
-  Expect.equals(DateTime.thursday, d.weekday);
-  d = new DateTime(2011, 10, 5, 23, 45, 37, 0);
-  Expect.equals(DateTime.wednesday, d.weekday);
-  d = new DateTime.utc(2011, 10, 5, 23, 45, 37, 0);
-  Expect.equals(DateTime.wednesday, d.weekday);
-  // 1970-01-01 is Wintertime.
-  d = new DateTime(1970, 1, 1, 0, 0, 0, 1);
-  Expect.equals(DateTime.thursday, d.weekday);
-  d = new DateTime.utc(1970, 1, 1, 0, 0, 0, 1);
-  Expect.equals(DateTime.thursday, d.weekday);
-  d = new DateTime.utc(1969, 12, 31, 23, 59, 59, 999);
-  Expect.equals(DateTime.wednesday, d.weekday);
-  d = new DateTime(1969, 12, 31, 23, 59, 59, 999);
-  Expect.equals(DateTime.wednesday, d.weekday);
-  d = new DateTime(2011, 10, 4, 23, 45, 37, 0);
-  Expect.equals(DateTime.tuesday, d.weekday);
-  d = new DateTime(2011, 10, 3, 23, 45, 37, 0);
-  Expect.equals(DateTime.monday, d.weekday);
-  d = new DateTime(2011, 10, 2, 23, 45, 37, 0);
-  Expect.equals(DateTime.sunday, d.weekday);
-  d = new DateTime(2011, 10, 1, 23, 45, 37, 0);
-  Expect.equals(DateTime.saturday, d.weekday);
-  d = new DateTime(2011, 9, 30, 23, 45, 37, 0);
-  Expect.equals(DateTime.friday, d.weekday);
-}
-
-void testToStrings() {
-  void test(date, time) {
-    {
-      // UTC time.
-      String source1 = "$date ${time}Z";
-      String source2 = "${date}T${time}Z";
-      var utcTime1 = DateTime.parse(source1);
-      var utcTime2 = DateTime.parse(source2);
-      Expect.isTrue(utcTime1.isUtc);
-      Expect.equals(utcTime1, utcTime2);
-      Expect.equals(source1, utcTime1.toString());
-      Expect.equals(source2, utcTime1.toIso8601String());
-    }
-    {
-      // Local time
-      String source1 = "$date $time";
-      String source2 = "${date}T$time";
-      var utcTime1 = DateTime.parse(source1);
-      var utcTime2 = DateTime.parse(source2);
-      Expect.isFalse(utcTime1.isUtc);
-      Expect.equals(utcTime1, utcTime2);
-      Expect.equals(source1, utcTime1.toString());
-      Expect.equals(source2, utcTime1.toIso8601String());
-    }
-  }
-
-  test("2000-01-01", "12:00:00.000");
-  test("-2000-01-01", "12:00:00.000");
-  test("1970-01-01", "00:00:00.000");
-  test("1969-12-31", "23:59:59.999");
-  test("1969-09-09", "00:09:09.009");
-
-  if (supportsMicroseconds) {
-    test("2000-01-01", "12:00:00.000001");
-    test("-2000-01-01", "12:00:00.000001");
-    test("1970-01-01", "00:00:00.000001");
-    test("1969-12-31", "23:59:59.999999");
-    test("1969-09-09", "00:09:09.009999");
-  }
-}
-
-void testIsoString() {
-  var d = new DateTime(9999, 1, 1, 23, 59, 59, 999);
-  Expect.equals("9999-01-01T23:59:59.999", d.toIso8601String());
-  d = new DateTime(-9999, 1, 1, 23, 59, 59, 999);
-  Expect.equals("-9999-01-01T23:59:59.999", d.toIso8601String());
-  d = new DateTime.utc(9999, 1, 1, 23, 59, 59, 999);
-  Expect.equals("9999-01-01T23:59:59.999Z", d.toIso8601String());
-  d = new DateTime.utc(-9999, 1, 1, 23, 59, 59, 999);
-  Expect.equals("-9999-01-01T23:59:59.999Z", d.toIso8601String());
-
-  d = new DateTime(10000, 1, 1, 23, 59, 59, 999);
-  Expect.equals("+010000-01-01T23:59:59.999", d.toIso8601String());
-  d = new DateTime(-10000, 1, 1, 23, 59, 59, 999);
-  Expect.equals("-010000-01-01T23:59:59.999", d.toIso8601String());
-  d = new DateTime.utc(10000, 1, 1, 23, 59, 59, 999);
-  Expect.equals("+010000-01-01T23:59:59.999Z", d.toIso8601String());
-  d = new DateTime.utc(-10000, 1, 1, 23, 59, 59, 999);
-  Expect.equals("-010000-01-01T23:59:59.999Z", d.toIso8601String());
-
-  if (!supportsMicroseconds) return;
-
-  d = new DateTime(9999, 1, 1, 23, 59, 59, 999, 999);
-  Expect.equals("9999-01-01T23:59:59.999999", d.toIso8601String());
-  d = new DateTime(-9999, 1, 1, 23, 59, 59, 999, 999);
-  Expect.equals("-9999-01-01T23:59:59.999999", d.toIso8601String());
-  d = new DateTime.utc(9999, 1, 1, 23, 59, 59, 999, 999);
-  Expect.equals("9999-01-01T23:59:59.999999Z", d.toIso8601String());
-  d = new DateTime.utc(-9999, 1, 1, 23, 59, 59, 999, 999);
-  Expect.equals("-9999-01-01T23:59:59.999999Z", d.toIso8601String());
-
-  d = new DateTime(10000, 1, 1, 23, 59, 59, 999, 999);
-  Expect.equals("+010000-01-01T23:59:59.999999", d.toIso8601String());
-  d = new DateTime(-10000, 1, 1, 23, 59, 59, 999, 999);
-  Expect.equals("-010000-01-01T23:59:59.999999", d.toIso8601String());
-  d = new DateTime.utc(10000, 1, 1, 23, 59, 59, 999, 999);
-  Expect.equals("+010000-01-01T23:59:59.999999Z", d.toIso8601String());
-  d = new DateTime.utc(-10000, 1, 1, 23, 59, 59, 999, 999);
-  Expect.equals("-010000-01-01T23:59:59.999999Z", d.toIso8601String());
-
-  d = new DateTime(9999, 1, 1, 23, 49, 59, 989, 979);
-  Expect.equals("9999-01-01T23:49:59.989979", d.toIso8601String());
-  d = new DateTime(-9999, 1, 1, 23, 49, 59, 989, 979);
-  Expect.equals("-9999-01-01T23:49:59.989979", d.toIso8601String());
-  d = new DateTime.utc(9999, 1, 1, 23, 49, 59, 989, 979);
-  Expect.equals("9999-01-01T23:49:59.989979Z", d.toIso8601String());
-  d = new DateTime.utc(-9999, 1, 1, 23, 49, 59, 989, 979);
-  Expect.equals("-9999-01-01T23:49:59.989979Z", d.toIso8601String());
-
-  d = new DateTime(10000, 1, 1, 23, 49, 59, 989, 979);
-  Expect.equals("+010000-01-01T23:49:59.989979", d.toIso8601String());
-  d = new DateTime(-10000, 1, 1, 23, 49, 59, 989, 979);
-  Expect.equals("-010000-01-01T23:49:59.989979", d.toIso8601String());
-  d = new DateTime.utc(10000, 1, 1, 23, 49, 59, 989, 979);
-  Expect.equals("+010000-01-01T23:49:59.989979Z", d.toIso8601String());
-  d = new DateTime.utc(-10000, 1, 1, 23, 49, 59, 989, 979);
-  Expect.equals("-010000-01-01T23:49:59.989979Z", d.toIso8601String());
-}
-
-void testRegression46966() {
-  // See http://dartbug.com/46966
-  // The constructor allowed numbers larger than 100_000_000 days
-  // from epoch, contrary to documentation (and web behavior).
-
-  // Maximally allowed milliseconds on either side of epoch
-  // (±100 000 000 days).
-  var maxMilliseconds = 100000000 * 24 * 60 * 60 * 1000;
-  var maxDate = DateTime.fromMillisecondsSinceEpoch(maxMilliseconds);
-  var minDate = DateTime.fromMillisecondsSinceEpoch(-maxMilliseconds);
-
-  // Throws if greater.
-  Expect.throws(() => DateTime.fromMillisecondsSinceEpoch(maxMilliseconds + 1));
-  Expect.throws(
-      () => DateTime.fromMillisecondsSinceEpoch(-maxMilliseconds - 1));
-
-  // But also if much greater.
-  // The badMin value overflows 64-bits when multiplied by 1000.
-  var badMin = 0x20c49ba5e353f8;
-  Expect.throws(() => DateTime.fromMillisecondsSinceEpoch(badMin));
-  Expect.throws(() => DateTime.fromMillisecondsSinceEpoch(-badMin));
-  Expect.throws(() => DateTime.fromMillisecondsSinceEpoch(badMin + 1));
-  Expect.throws(() => DateTime.fromMillisecondsSinceEpoch(-badMin - 1));
-  var badMax = double.maxFinite.toInt(); // 2^63-1 on VM, max double on JS.
-  Expect.throws(() => DateTime.fromMillisecondsSinceEpoch(badMax));
-  Expect.throws(() => DateTime.fromMillisecondsSinceEpoch(-badMax - 1));
-}
-
-void main() {
-  testNow();
-  testMillisecondsSinceEpoch();
-  testMicrosecondsSinceEpoch();
-  testConstructors();
-  testUTCGetters();
-  testLocalGetters();
-  testChangeTimeZone();
-  testSubAdd();
-  testUnderflowAndOverflow();
-  testDateStrings();
-  testEquivalentYears();
-  testWeekday();
-  testToStrings();
-  testIsoString();
-  testRegression46966();
-}
diff --git a/tests/corelib_2/double_ceil2_test.dart b/tests/corelib_2/double_ceil2_test.dart
deleted file mode 100644
index 478edd0f1ac..00000000000
--- a/tests/corelib_2/double_ceil2_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  Expect.throwsUnsupportedError(() => double.infinity.ceil());
-  Expect.throwsUnsupportedError(() => double.negativeInfinity.ceil());
-  Expect.throwsUnsupportedError(() => double.nan.ceil());
-}
diff --git a/tests/corelib_2/double_ceil_test.dart b/tests/corelib_2/double_ceil_test.dart
deleted file mode 100644
index 4199ea9f17b..00000000000
--- a/tests/corelib_2/double_ceil_test.dart
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  Expect.equals(0, 0.0.ceil());
-  Expect.equals(1, double.minPositive.ceil());
-  Expect.equals(1, (2.0 * double.minPositive).ceil());
-  Expect.equals(1, (1.18e-38).ceil());
-  Expect.equals(1, (1.18e-38 * 2).ceil());
-  Expect.equals(1, 0.49999999999999994.ceil());
-  Expect.equals(1, 0.5.ceil());
-  Expect.equals(1, 0.9999999999999999.ceil());
-  Expect.equals(1, 1.0.ceil());
-  Expect.equals(2, 1.000000000000001.ceil());
-  // The following numbers are on the border of 52 bits.
-  // For example: 4503599627370499 + 0.5 => 4503599627370500.
-  Expect.equals(4503599627370496, 4503599627370496.0.ceil());
-  Expect.equals(4503599627370497, 4503599627370497.0.ceil());
-  Expect.equals(4503599627370498, 4503599627370498.0.ceil());
-  Expect.equals(4503599627370499, 4503599627370499.0.ceil());
-
-  Expect.equals(9007199254740991, 9007199254740991.0.ceil());
-  Expect.equals(9007199254740992, 9007199254740992.0.ceil());
-  Expect.equals(9223372036854775807, double.maxFinite.ceil()); // //# int64: ok
-
-  Expect.equals(0, (-double.minPositive).ceil());
-  Expect.equals(0, (2.0 * -double.minPositive).ceil());
-  Expect.equals(0, (-1.18e-38).ceil());
-  Expect.equals(0, (-1.18e-38 * 2).ceil());
-  Expect.equals(0, (-0.49999999999999994).ceil());
-  Expect.equals(0, (-0.5).ceil());
-  Expect.equals(0, (-0.9999999999999999).ceil());
-  Expect.equals(-1, (-1.0).ceil());
-  Expect.equals(-1, (-1.000000000000001).ceil());
-  Expect.equals(-4503599627370496, (-4503599627370496.0).ceil());
-  Expect.equals(-4503599627370497, (-4503599627370497.0).ceil());
-  Expect.equals(-4503599627370498, (-4503599627370498.0).ceil());
-  Expect.equals(-4503599627370499, (-4503599627370499.0).ceil());
-  Expect.equals(-9007199254740991, (-9007199254740991.0).ceil());
-  Expect.equals(-9007199254740992, (-9007199254740992.0).ceil());
-  Expect.equals(-9223372036854775808, (-double.maxFinite).ceil()); // //# int64: ok
-
-  Expect.isTrue(0.0.ceil() is int);
-  Expect.isTrue(double.minPositive.ceil() is int);
-  Expect.isTrue((2.0 * double.minPositive).ceil() is int);
-  Expect.isTrue((1.18e-38).ceil() is int);
-  Expect.isTrue((1.18e-38 * 2).ceil() is int);
-  Expect.isTrue(0.49999999999999994.ceil() is int);
-  Expect.isTrue(0.5.ceil() is int);
-  Expect.isTrue(0.9999999999999999.ceil() is int);
-  Expect.isTrue(1.0.ceil() is int);
-  Expect.isTrue(1.000000000000001.ceil() is int);
-  Expect.isTrue(4503599627370496.0.ceil() is int);
-  Expect.isTrue(4503599627370497.0.ceil() is int);
-  Expect.isTrue(4503599627370498.0.ceil() is int);
-  Expect.isTrue(4503599627370499.0.ceil() is int);
-  Expect.isTrue(9007199254740991.0.ceil() is int);
-  Expect.isTrue(9007199254740992.0.ceil() is int);
-  Expect.isTrue(double.maxFinite.ceil() is int);
-
-  Expect.isTrue((-double.minPositive).ceil() is int);
-  Expect.isTrue((2.0 * -double.minPositive).ceil() is int);
-  Expect.isTrue((-1.18e-38).ceil() is int);
-  Expect.isTrue((-1.18e-38 * 2).ceil() is int);
-  Expect.isTrue((-0.49999999999999994).ceil() is int);
-  Expect.isTrue((-0.5).ceil() is int);
-  Expect.isTrue((-0.9999999999999999).ceil() is int);
-  Expect.isTrue((-1.0).ceil() is int);
-  Expect.isTrue((-1.000000000000001).ceil() is int);
-  Expect.isTrue((-4503599627370496.0).ceil() is int);
-  Expect.isTrue((-4503599627370497.0).ceil() is int);
-  Expect.isTrue((-4503599627370498.0).ceil() is int);
-  Expect.isTrue((-4503599627370499.0).ceil() is int);
-  Expect.isTrue((-9007199254740991.0).ceil() is int);
-  Expect.isTrue((-9007199254740992.0).ceil() is int);
-  Expect.isTrue((-double.maxFinite).ceil() is int);
-}
diff --git a/tests/corelib_2/double_ceil_to_double_test.dart b/tests/corelib_2/double_ceil_to_double_test.dart
deleted file mode 100644
index f1e4240b7e0..00000000000
--- a/tests/corelib_2/double_ceil_to_double_test.dart
+++ /dev/null
@@ -1,95 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  Expect.equals(0.0, 0.0.ceilToDouble());
-  Expect.equals(1.0, double.minPositive.ceilToDouble());
-  Expect.equals(1.0, (2.0 * double.minPositive).ceilToDouble());
-  Expect.equals(1.0, (1.18e-38).ceilToDouble());
-  Expect.equals(1.0, (1.18e-38 * 2).ceilToDouble());
-  Expect.equals(1.0, 0.49999999999999994.ceilToDouble());
-  Expect.equals(1.0, 0.5.ceilToDouble());
-  Expect.equals(1.0, 0.9999999999999999.ceilToDouble());
-  Expect.equals(1.0, 1.0.ceilToDouble());
-  Expect.equals(2.0, 1.000000000000001.ceilToDouble());
-  // The following numbers are on the border of 52 bits.
-  // For example: 4503599627370499 + 0.5 => 4503599627370500.
-  Expect.equals(4503599627370496.0, 4503599627370496.0.ceilToDouble());
-  Expect.equals(4503599627370497.0, 4503599627370497.0.ceilToDouble());
-  Expect.equals(4503599627370498.0, 4503599627370498.0.ceilToDouble());
-  Expect.equals(4503599627370499.0, 4503599627370499.0.ceilToDouble());
-
-  Expect.equals(9007199254740991.0, 9007199254740991.0.ceilToDouble());
-  Expect.equals(9007199254740992.0, 9007199254740992.0.ceilToDouble());
-  Expect.equals(double.maxFinite, double.maxFinite.ceilToDouble());
-
-  Expect.equals(0.0, (-double.minPositive).ceilToDouble());
-  Expect.equals(0.0, (2.0 * -double.minPositive).ceilToDouble());
-  Expect.equals(0.0, (-1.18e-38).ceilToDouble());
-  Expect.equals(0.0, (-1.18e-38 * 2).ceilToDouble());
-  Expect.equals(0.0, (-0.49999999999999994).ceilToDouble());
-  Expect.equals(0.0, (-0.5).ceilToDouble());
-  Expect.equals(0.0, (-0.9999999999999999).ceilToDouble());
-  Expect.equals(-1.0, (-1.0).ceilToDouble());
-  Expect.equals(-1.0, (-1.000000000000001).ceilToDouble());
-  Expect.equals(-4503599627370496.0, (-4503599627370496.0).ceilToDouble());
-  Expect.equals(-4503599627370497.0, (-4503599627370497.0).ceilToDouble());
-  Expect.equals(-4503599627370498.0, (-4503599627370498.0).ceilToDouble());
-  Expect.equals(-4503599627370499.0, (-4503599627370499.0).ceilToDouble());
-  Expect.equals(-9007199254740991.0, (-9007199254740991.0).ceilToDouble());
-  Expect.equals(-9007199254740992.0, (-9007199254740992.0).ceilToDouble());
-  Expect.equals(-double.maxFinite, (-double.maxFinite).ceilToDouble());
-
-  Expect.equals(double.infinity, double.infinity.ceilToDouble());
-  Expect.equals(
-      double.negativeInfinity, double.negativeInfinity.ceilToDouble());
-  Expect.isTrue(double.nan.ceilToDouble().isNaN);
-
-  Expect.isTrue(0.0.ceilToDouble() is double);
-  Expect.isTrue(double.minPositive.ceilToDouble() is double);
-  Expect.isTrue((2.0 * double.minPositive).ceilToDouble() is double);
-  Expect.isTrue((1.18e-38).ceilToDouble() is double);
-  Expect.isTrue((1.18e-38 * 2).ceilToDouble() is double);
-  Expect.isTrue(0.49999999999999994.ceilToDouble() is double);
-  Expect.isTrue(0.5.ceilToDouble() is double);
-  Expect.isTrue(0.9999999999999999.ceilToDouble() is double);
-  Expect.isTrue(1.0.ceilToDouble() is double);
-  Expect.isTrue(1.000000000000001.ceilToDouble() is double);
-  Expect.isTrue(4503599627370496.0.ceilToDouble() is double);
-  Expect.isTrue(4503599627370497.0.ceilToDouble() is double);
-  Expect.isTrue(4503599627370498.0.ceilToDouble() is double);
-  Expect.isTrue(4503599627370499.0.ceilToDouble() is double);
-  Expect.isTrue(9007199254740991.0.ceilToDouble() is double);
-  Expect.isTrue(9007199254740992.0.ceilToDouble() is double);
-  Expect.isTrue(double.maxFinite.ceilToDouble() is double);
-
-  Expect.isTrue((-double.minPositive).ceilToDouble().isNegative);
-  Expect.isTrue((2.0 * -double.minPositive).ceilToDouble().isNegative);
-  Expect.isTrue((-1.18e-38).ceilToDouble().isNegative);
-  Expect.isTrue((-1.18e-38 * 2).ceilToDouble().isNegative);
-  Expect.isTrue((-0.49999999999999994).ceilToDouble().isNegative);
-  Expect.isTrue((-0.5).ceilToDouble().isNegative);
-  Expect.isTrue((-0.9999999999999999).ceilToDouble().isNegative);
-
-  Expect.isTrue((-double.minPositive).ceilToDouble() is double);
-  Expect.isTrue((2.0 * -double.minPositive).ceilToDouble() is double);
-  Expect.isTrue((-1.18e-38).ceilToDouble() is double);
-  Expect.isTrue((-1.18e-38 * 2).ceilToDouble() is double);
-  Expect.isTrue((-0.49999999999999994).ceilToDouble() is double);
-  Expect.isTrue((-0.5).ceilToDouble() is double);
-  Expect.isTrue((-0.9999999999999999).ceilToDouble() is double);
-  Expect.isTrue((-1.0).ceilToDouble() is double);
-  Expect.isTrue((-1.000000000000001).ceilToDouble() is double);
-  Expect.isTrue((-4503599627370496.0).ceilToDouble() is double);
-  Expect.isTrue((-4503599627370497.0).ceilToDouble() is double);
-  Expect.isTrue((-4503599627370498.0).ceilToDouble() is double);
-  Expect.isTrue((-4503599627370499.0).ceilToDouble() is double);
-  Expect.isTrue((-9007199254740991.0).ceilToDouble() is double);
-  Expect.isTrue((-9007199254740992.0).ceilToDouble() is double);
-  Expect.isTrue((-double.maxFinite).ceilToDouble() is double);
-}
diff --git a/tests/corelib_2/double_compare_test.dart b/tests/corelib_2/double_compare_test.dart
deleted file mode 100644
index 475bea7e10a..00000000000
--- a/tests/corelib_2/double_compare_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test program for testing 'compare' on doubles.
-
-void main() {
-  Expect.equals(0, (0.0).compareTo(0.0));
-  Expect.equals(0, (1.0).compareTo(1.0));
-  Expect.equals(0, (-2.0).compareTo(-2.0));
-  Expect.equals(0, (1e-50).compareTo(1e-50));
-  Expect.equals(0, (-2e50).compareTo(-2e50));
-  Expect.equals(0, double.nan.compareTo(double.nan));
-  Expect.equals(0, double.infinity.compareTo(double.infinity));
-  Expect.equals(0, double.negativeInfinity.compareTo(double.negativeInfinity));
-  Expect.equals(0, (-0.0).compareTo(-0.0));
-  Expect.isTrue((0.0).compareTo(1.0) < 0);
-  Expect.isTrue((1.0).compareTo(0.0) > 0);
-  Expect.isTrue((0.0).compareTo(-1.0) > 0);
-  Expect.isTrue((-1.0).compareTo(0.0) < 0);
-  Expect.isTrue((0.0).compareTo(1234e11) < 0);
-  Expect.isTrue((123e-112).compareTo(0.0) > 0);
-  Expect.isTrue((0.0).compareTo(-123.0e12) > 0);
-  Expect.isTrue((-1.0e8).compareTo(0.0) < 0);
-
-  double maxDouble = 1.7976931348623157e308;
-  Expect.equals(0, maxDouble.compareTo(maxDouble));
-  Expect.isTrue(maxDouble.compareTo(double.infinity) < 0);
-  Expect.isTrue(double.infinity.compareTo(maxDouble) > 0);
-
-  double negMaxDouble = -maxDouble;
-  Expect.equals(0, negMaxDouble.compareTo(negMaxDouble));
-  Expect.isTrue(double.negativeInfinity.compareTo(negMaxDouble) < 0);
-  Expect.isTrue(negMaxDouble.compareTo(double.negativeInfinity) > 0);
-
-  Expect.isTrue((-0.0).compareTo(0.0) < 0);
-  Expect.isTrue((0.0).compareTo(-0.0) > 0);
-  Expect.isTrue(double.nan.compareTo(double.infinity) > 0);
-  Expect.isTrue(double.nan.compareTo(double.negativeInfinity) > 0);
-  Expect.isTrue(double.infinity.compareTo(double.nan) < 0);
-  Expect.isTrue(double.negativeInfinity.compareTo(double.nan) < 0);
-  Expect.isTrue(maxDouble.compareTo(double.nan) < 0);
-  Expect.isTrue(negMaxDouble.compareTo(double.nan) < 0);
-  Expect.isTrue(double.nan.compareTo(maxDouble) > 0);
-  Expect.isTrue(double.nan.compareTo(negMaxDouble) > 0);
-}
diff --git a/tests/corelib_2/double_floor2_test.dart b/tests/corelib_2/double_floor2_test.dart
deleted file mode 100644
index 79e01ce4549..00000000000
--- a/tests/corelib_2/double_floor2_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  Expect.throwsUnsupportedError(() => double.infinity.floor());
-  Expect.throwsUnsupportedError(() => double.negativeInfinity.floor());
-  Expect.throwsUnsupportedError(() => double.nan.floor());
-}
diff --git a/tests/corelib_2/double_floor_test.dart b/tests/corelib_2/double_floor_test.dart
deleted file mode 100644
index 2bd1c9a8fe5..00000000000
--- a/tests/corelib_2/double_floor_test.dart
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  Expect.equals(0, 0.0.floor());
-  Expect.equals(0, double.minPositive.floor());
-  Expect.equals(0, (2.0 * double.minPositive).floor());
-  Expect.equals(0, (1.18e-38).floor());
-  Expect.equals(0, (1.18e-38 * 2).floor());
-  Expect.equals(0, 0.49999999999999994.floor());
-  Expect.equals(0, 0.5.floor());
-  Expect.equals(0, 0.9999999999999999.floor());
-  Expect.equals(1, 1.0.floor());
-  Expect.equals(1, 1.000000000000001.floor());
-  // The following numbers are on the border of 52 bits.
-  // For example: 4503599627370499 + 0.5 => 4503599627370500.
-  Expect.equals(4503599627370496, 4503599627370496.0.floor());
-  Expect.equals(4503599627370497, 4503599627370497.0.floor());
-  Expect.equals(4503599627370498, 4503599627370498.0.floor());
-  Expect.equals(4503599627370499, 4503599627370499.0.floor());
-
-  Expect.equals(9007199254740991, 9007199254740991.0.floor());
-  Expect.equals(9007199254740992, 9007199254740992.0.floor());
-  Expect.equals(9223372036854775807, double.maxFinite.floor()); // //# int64: ok
-
-  Expect.equals(-1, (-double.minPositive).floor());
-  Expect.equals(-1, (2.0 * -double.minPositive).floor());
-  Expect.equals(-1, (-1.18e-38).floor());
-  Expect.equals(-1, (-1.18e-38 * 2).floor());
-  Expect.equals(-1, (-0.49999999999999994).floor());
-  Expect.equals(-1, (-0.5).floor());
-  Expect.equals(-1, (-0.9999999999999999).floor());
-  Expect.equals(-1, (-1.0).floor());
-  Expect.equals(-2, (-1.000000000000001).floor());
-  Expect.equals(-4503599627370496, (-4503599627370496.0).floor());
-  Expect.equals(-4503599627370497, (-4503599627370497.0).floor());
-  Expect.equals(-4503599627370498, (-4503599627370498.0).floor());
-  Expect.equals(-4503599627370499, (-4503599627370499.0).floor());
-  Expect.equals(-9007199254740991, (-9007199254740991.0).floor());
-  Expect.equals(-9007199254740992, (-9007199254740992.0).floor());
-  Expect.equals(-9223372036854775808, (-double.maxFinite).floor()); // //# int64: ok
-
-  Expect.isTrue(0.0.floor() is int);
-  Expect.isTrue(double.minPositive.floor() is int);
-  Expect.isTrue((2.0 * double.minPositive).floor() is int);
-  Expect.isTrue((1.18e-38).floor() is int);
-  Expect.isTrue((1.18e-38 * 2).floor() is int);
-  Expect.isTrue(0.49999999999999994.floor() is int);
-  Expect.isTrue(0.5.floor() is int);
-  Expect.isTrue(0.9999999999999999.floor() is int);
-  Expect.isTrue(1.0.floor() is int);
-  Expect.isTrue(1.000000000000001.floor() is int);
-  Expect.isTrue(4503599627370496.0.floor() is int);
-  Expect.isTrue(4503599627370497.0.floor() is int);
-  Expect.isTrue(4503599627370498.0.floor() is int);
-  Expect.isTrue(4503599627370499.0.floor() is int);
-  Expect.isTrue(9007199254740991.0.floor() is int);
-  Expect.isTrue(9007199254740992.0.floor() is int);
-  Expect.isTrue(double.maxFinite.floor() is int);
-
-  Expect.isTrue((-double.minPositive).floor() is int);
-  Expect.isTrue((2.0 * -double.minPositive).floor() is int);
-  Expect.isTrue((-1.18e-38).floor() is int);
-  Expect.isTrue((-1.18e-38 * 2).floor() is int);
-  Expect.isTrue((-0.49999999999999994).floor() is int);
-  Expect.isTrue((-0.5).floor() is int);
-  Expect.isTrue((-0.9999999999999999).floor() is int);
-  Expect.isTrue((-1.0).floor() is int);
-  Expect.isTrue((-1.000000000000001).floor() is int);
-  Expect.isTrue((-4503599627370496.0).floor() is int);
-  Expect.isTrue((-4503599627370497.0).floor() is int);
-  Expect.isTrue((-4503599627370498.0).floor() is int);
-  Expect.isTrue((-4503599627370499.0).floor() is int);
-  Expect.isTrue((-9007199254740991.0).floor() is int);
-  Expect.isTrue((-9007199254740992.0).floor() is int);
-  Expect.isTrue((-double.maxFinite).floor() is int);
-}
diff --git a/tests/corelib_2/double_floor_to_double_test.dart b/tests/corelib_2/double_floor_to_double_test.dart
deleted file mode 100644
index abd1c7031fc..00000000000
--- a/tests/corelib_2/double_floor_to_double_test.dart
+++ /dev/null
@@ -1,87 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  Expect.equals(0.0, 0.0.floorToDouble());
-  Expect.equals(0.0, double.minPositive.floorToDouble());
-  Expect.equals(0.0, (2.0 * double.minPositive).floorToDouble());
-  Expect.equals(0.0, (1.18e-38).floorToDouble());
-  Expect.equals(0.0, (1.18e-38 * 2).floorToDouble());
-  Expect.equals(0.0, 0.49999999999999994.floorToDouble());
-  Expect.equals(0.0, 0.5.floorToDouble());
-  Expect.equals(0.0, 0.9999999999999999.floorToDouble());
-  Expect.equals(1.0, 1.0.floorToDouble());
-  Expect.equals(1.0, 1.000000000000001.floorToDouble());
-  // The following numbers are on the border of 52 bits.
-  // For example: 4503599627370499 + 0.5 => 4503599627370500.
-  Expect.equals(4503599627370496.0, 4503599627370496.0.floorToDouble());
-  Expect.equals(4503599627370497.0, 4503599627370497.0.floorToDouble());
-  Expect.equals(4503599627370498.0, 4503599627370498.0.floorToDouble());
-  Expect.equals(4503599627370499.0, 4503599627370499.0.floorToDouble());
-
-  Expect.equals(9007199254740991.0, 9007199254740991.0.floorToDouble());
-  Expect.equals(9007199254740992.0, 9007199254740992.0.floorToDouble());
-  Expect.equals(double.maxFinite, double.maxFinite.floorToDouble());
-
-  Expect.equals(-1.0, (-double.minPositive).floorToDouble());
-  Expect.equals(-1.0, (2.0 * -double.minPositive).floorToDouble());
-  Expect.equals(-1.0, (-1.18e-38).floorToDouble());
-  Expect.equals(-1.0, (-1.18e-38 * 2).floorToDouble());
-  Expect.equals(-1.0, (-0.49999999999999994).floorToDouble());
-  Expect.equals(-1.0, (-0.5).floorToDouble());
-  Expect.equals(-1.0, (-0.9999999999999999).floorToDouble());
-  Expect.equals(-1.0, (-1.0).floorToDouble());
-  Expect.equals(-2.0, (-1.000000000000001).floorToDouble());
-  Expect.equals(-4503599627370496.0, (-4503599627370496.0).floorToDouble());
-  Expect.equals(-4503599627370497.0, (-4503599627370497.0).floorToDouble());
-  Expect.equals(-4503599627370498.0, (-4503599627370498.0).floorToDouble());
-  Expect.equals(-4503599627370499.0, (-4503599627370499.0).floorToDouble());
-  Expect.equals(-9007199254740991.0, (-9007199254740991.0).floorToDouble());
-  Expect.equals(-9007199254740992.0, (-9007199254740992.0).floorToDouble());
-  Expect.equals(-double.maxFinite, (-double.maxFinite).floorToDouble());
-
-  Expect.equals(double.infinity, double.infinity.floorToDouble());
-  Expect.equals(
-      double.negativeInfinity, double.negativeInfinity.floorToDouble());
-  Expect.isTrue(double.nan.floorToDouble().isNaN);
-
-  Expect.isTrue(0.0.floorToDouble() is double);
-  Expect.isTrue(double.minPositive.floorToDouble() is double);
-  Expect.isTrue((2.0 * double.minPositive).floorToDouble() is double);
-  Expect.isTrue((1.18e-38).floorToDouble() is double);
-  Expect.isTrue((1.18e-38 * 2).floorToDouble() is double);
-  Expect.isTrue(0.49999999999999994.floorToDouble() is double);
-  Expect.isTrue(0.5.floorToDouble() is double);
-  Expect.isTrue(0.9999999999999999.floorToDouble() is double);
-  Expect.isTrue(1.0.floorToDouble() is double);
-  Expect.isTrue(1.000000000000001.floorToDouble() is double);
-  Expect.isTrue(4503599627370496.0.floorToDouble() is double);
-  Expect.isTrue(4503599627370497.0.floorToDouble() is double);
-  Expect.isTrue(4503599627370498.0.floorToDouble() is double);
-  Expect.isTrue(4503599627370499.0.floorToDouble() is double);
-  Expect.isTrue(9007199254740991.0.floorToDouble() is double);
-  Expect.isTrue(9007199254740992.0.floorToDouble() is double);
-  Expect.isTrue(double.maxFinite.floorToDouble() is double);
-
-  Expect.isTrue((-double.minPositive).floorToDouble() is double);
-  Expect.isTrue((2.0 * -double.minPositive).floorToDouble() is double);
-  Expect.isTrue((-1.18e-38).floorToDouble() is double);
-  Expect.isTrue((-1.18e-38 * 2).floorToDouble() is double);
-  Expect.isTrue((-0.49999999999999994).floorToDouble() is double);
-  Expect.isTrue((-0.5).floorToDouble() is double);
-  Expect.isTrue((-0.9999999999999999).floorToDouble() is double);
-  Expect.isTrue((-1.0).floorToDouble() is double);
-  Expect.isTrue((-1.000000000000001).floorToDouble() is double);
-  Expect.isTrue((-4503599627370496.0).floorToDouble() is double);
-  Expect.isTrue((-4503599627370497.0).floorToDouble() is double);
-  Expect.isTrue((-4503599627370498.0).floorToDouble() is double);
-  Expect.isTrue((-4503599627370499.0).floorToDouble() is double);
-  Expect.isTrue((-9007199254740991.0).floorToDouble() is double);
-  Expect.isTrue((-9007199254740992.0).floorToDouble() is double);
-  Expect.isTrue((-double.maxFinite).floorToDouble() is double);
-}
diff --git a/tests/corelib_2/double_hash_code_test.dart b/tests/corelib_2/double_hash_code_test.dart
deleted file mode 100644
index b85b8f7548f..00000000000
--- a/tests/corelib_2/double_hash_code_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--intrinsify --use_sse41
-// VMOptions=--no_intrinsify --use_sse41
-// VMOptions=--intrinsify --no_use_sse41
-// VMOptions=--no_intrinsify --no_use_sse41
-
-import 'package:expect/expect.dart';
-
-main() {
-  for (int x in [0, 1, 0xffff, 0xffffffff, 0x111111111111, 0xffffffffffff]) {
-    test(x);
-    test(-x);
-  }
-
-  // Test with ints outside the 53-bit range that are known to have an
-  // exact double representation.
-  test(9007199254840856);
-  test(144115188075954880);
-  test(936748722493162112);
-  test(0x8000000000000000);
-}
-
-test(int x) {
-  Expect.equals(x, x.toDouble().toInt(), "bad test argument ($x)");
-  Expect.equals(x.hashCode, x.toDouble().hashCode);
-}
diff --git a/tests/corelib_2/double_parse_test.dart b/tests/corelib_2/double_parse_test.dart
deleted file mode 100644
index fcb54b50ec3..00000000000
--- a/tests/corelib_2/double_parse_test.dart
+++ /dev/null
@@ -1,1214 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--no-use-field-guards
-// VMOptions=
-
-// @dart = 2.9
-
-import "dart:math" show pow;
-import "package:expect/expect.dart";
-
-const whiteSpace = const [
-  "",
-  "\x09",
-  "\x0a",
-  "\x0b",
-  "\x0c",
-  "\x0d",
-  // JS implementations disagree on U+0085 being whitespace.
-  // U+0085 does not work well with testParseWhiteSpace, so omit it.
-  "\xa0",
-  "\u1680",
-  "\u2000",
-  "\u2001",
-  "\u2002",
-  "\u2003",
-  "\u2004",
-  "\u2005",
-  "\u2006",
-  "\u2007",
-  "\u2008",
-  "\u2009",
-  "\u200a",
-  "\u2028",
-  "\u2029",
-  "\u202f",
-  "\u205f",
-  "\u3000",
-  "\uFEFF"
-];
-
-void expectNumEquals(double expected, var actual, String message) {
-  if (expected.isNaN) {
-    Expect.isTrue(actual is double && actual.isNaN, "isNaN: $message");
-  } else {
-    Expect.identical(expected, actual, message);
-  }
-}
-
-// Test source surrounded by any combination of whitespace.
-void testParseAllWhitespace(String source, double result) {
-  for (String ws1 in whiteSpace) {
-    for (String ws2 in whiteSpace) {
-      String padded = "$ws1$source$ws2";
-      // Use Expect.identical because it also handles NaN and 0.0/-0.0.
-      // Except on dart2js: http://dartbug.com/11551
-      expectNumEquals(result, double.parse(padded), "parse '$padded'");
-      padded = "$ws1$ws2$source";
-      expectNumEquals(result, double.parse(padded), "parse '$padded'");
-      padded = "$source$ws1$ws2";
-      expectNumEquals(result, double.parse(padded), "parse '$padded'");
-    }
-  }
-}
-
-// Test source and -source surrounded by any combination of whitespace.
-void testParseWhitespace(String source, double result) {
-  assert(result >= 0);
-  testParseAllWhitespace(source, result);
-  testParseAllWhitespace("-$source", -result);
-}
-
-// Test parsing source, optionally preceded and/or followed by whitespace.
-void testParse(String source, double result, [name = ""]) {
-  expectNumEquals(result, double.parse(source), "parse '$source:$name");
-  expectNumEquals(result, double.parse(" $source"), "parse ' $source':$name");
-  expectNumEquals(result, double.parse("$source "), "parse '$source ':$name");
-  expectNumEquals(result, double.parse(" $source "), "parse ' $source ':$name");
-
-  expectNumEquals(result, double.parse("+$source"), "parse '+$source:$name");
-  expectNumEquals(result, double.parse(" +$source"), "parse ' +$source':$name");
-  expectNumEquals(result, double.parse("+$source "), "parse '+$source ':$name");
-  expectNumEquals(
-      result, double.parse(" +$source "), "parse ' +$source ':$name");
-
-  expectNumEquals(-result, double.parse("-$source"), "parse '-$source:$name");
-  expectNumEquals(
-      -result, double.parse(" -$source"), "parse ' -$source':$name");
-  expectNumEquals(
-      -result, double.parse("-$source "), "parse '-$source ':$name");
-  expectNumEquals(
-      -result, double.parse(" -$source "), "parse ' -$source ':$name");
-}
-
-void testDouble(double value) {
-  testParse("$value", value);
-  if (value.isFinite) {
-    String exp = value.toStringAsExponential();
-    String lcexp = exp.toLowerCase();
-    testParse(lcexp, value);
-    String ucexp = exp.toUpperCase();
-    testParse(ucexp, value);
-  }
-}
-
-void testFail(String source) {
-  var object = new Object();
-  Expect.throwsFormatException(() { 
-    double.parse(source);
-  });
-  Expect.equals(1.5, double.tryParse(source) ?? 1.5);
-}
-
-void main() {
-  testDouble(0.0);
-  testDouble(5e-324);
-  testDouble(2.225073858507201e-308);
-  testDouble(2.2250738585072014e-308);
-  testDouble(0.49999999999999994);
-  testDouble(0.5);
-  testDouble(0.50000000000000006);
-  testDouble(0.9999999999999999);
-  testDouble(1.0);
-  testDouble(1.0000000000000002);
-  testDouble(4294967295.0);
-  testDouble(4294967296.0);
-  testDouble(4503599627370495.5);
-  testDouble(4503599627370497.0);
-  testDouble(9007199254740991.0);
-  testDouble(9007199254740992.0);
-  testDouble(1.7976931348623157e+308);
-  testDouble(double.infinity);
-  testDouble(double.nan);
-
-  // Strings that cannot occur from toString of a number.
-  testParse("000000000000", 0.0);
-  testParse("000000000001", 1.0);
-  testParse("000000000000.0000000000000", 0.0);
-  testParse("000000000001.0000000000000", 1.0);
-  testParse("0e0", 0.0);
-  testParse("0e+0", 0.0);
-  testParse("0e-0", 0.0);
-  testParse("1e0", 1.0);
-  testParse("1e+0", 1.0);
-  testParse("1e-0", 1.0);
-  testParse("1.", 1.0);
-  testParse(".1", 0.1);
-  testParse("1.e1", 10.0);
-  testParse(".1e1", 1.0);
-  testParse("Infinity", double.infinity);
-  testParse("NaN", double.nan);
-
-  // Cases where mantissa and 10^exponent are representable as a double.
-  for (int i = -22; i <= 22; i++) {
-    for (double j in [1.0, 9007199254740991.0, 9007199254740992.0]) {
-      var value = (i >= 0) ? j * pow(10.0, i) : j / pow(10.0, -i);
-      testParse("${j}e$i", value, "$i/$j");
-      testParse("${j}E$i", value, "$i/$j");
-      if (i >= 0) {
-        testParse("${j}e+$i", value, "$i/$j");
-        testParse("${j}E+$i", value, "$i/$j");
-      }
-    }
-  }
-  for (int i = 0; i <= 22; i++) {
-    var digits = "9007199254740991";
-    for (int i = 0; i < digits.length; i++) {
-      int dotIndex = digits.length - i;
-      var string = "${digits.substring(0, dotIndex)}."
-          "${digits.substring(dotIndex)}e$i";
-      testParse(string, 9007199254740991.0);
-    }
-  }
-
-  testParse(
-      "0.00000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000012351641146031163604414219821705534309126495065358119110639"
-      "6420625168876817552187966324959090408998094949141173861429432731"
-      "6641775889849490996936990026954695315751782975778511319614542919"
-      "6224552592217965901424968268076250159685228839124609682811834931"
-      "8292403785007928846349518531559641397792756664639171692046759890"
-      "0776562329863178978731138323263641361002818700324274998854829973"
-      "5227010414083113118928696725368169503983880965288753370088162336"
-      "8004844756702677687292583305671118833393020810798402309572336459"
-      "2015026502876542452438269585569329582311976245631182694093981811"
-      "9686640211945509336174248834117544931694293962814151377997828762"
-      "2277536275946568454181273895934743339974841620248529105142565927"
-      "256981069188614130727188467062660492956638336181640625",
-      0.0);
-  testParse(
-      "0.00000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000024703282292062327208828439643411068618252990130716238221279"
-      "2841250337753635104375932649918180817996189898282347722858865463"
-      "3283551779698981993873980053909390631503565951557022639229085839"
-      "2449105184435931802849936536152500319370457678249219365623669863"
-      "6584807570015857692699037063119282795585513329278343384093519780"
-      "1553124659726357957462276646527282722005637400648549997709659947"
-      "0454020828166226237857393450736339007967761930577506740176324673"
-      "6009689513405355374585166611342237666786041621596804619144672918"
-      "4030053005753084904876539171138659164623952491262365388187963623"
-      "9373280423891018672348497668235089863388587925628302755995657524"
-      "4555072551893136908362547791869486679949683240497058210285131854"
-      "51396213837722826145437693412532098591327667236328125",
-      0.0);
-  testParse(
-      "0.00000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000024703282292062327208828439643411068618252990130716238221279"
-      "2841250337753635104375932649918180817996189898282347722858865463"
-      "3283551779698981993873980053909390631503565951557022639229085839"
-      "2449105184435931802849936536152500319370457678249219365623669863"
-      "6584807570015857692699037063119282795585513329278343384093519780"
-      "1553124659726357957462276646527282722005637400648549997709659947"
-      "0454020828166226237857393450736339007967761930577506740176324673"
-      "6009689513405355374585166611342237666786041621596804619144672918"
-      "4030053005753084904876539171138659164623952491262365388187963623"
-      "9373280423891018672348497668235089863388587925628302755995657524"
-      "4555072551893136908362547791869486679949683240497058210285131854"
-      "51396213837722826145437693412532098591327667236328125",
-      0.0);
-  testParse(
-      "0.00000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000024703282292062327208828439643411068627545332140664243314532"
-      "8041234170109088178685677591650492652607243027730579814636067699"
-      "1112238669661707327453443265068702897439863329200619332642599205"
-      "1806252781222000513169502627641523911022607448403553068808609405"
-      "1727798181294290864842608522062097649849550765341204993205100587"
-      "2127469658709242016690593998242808606978027857019419997429604579"
-      "7572623273334010723772922131119806567715298322567005234345331218"
-      "5169920860031716486480793611343761679481328431956040281530986197"
-      "8304604971452253283193290744072288902141724247846767401941767720"
-      "8561650585989659548591956327689896895290365125294085321852619688"
-      "9863888974446146846024033780172178553364579041996676675092137151"
-      "9705456298034409473812692774776868254618683783877327369245051207"
-      "5931578479504396230612962142122846982018227555473696607567828620"
-      "5497859173707553281928994692862033843994140625",
-      5e-324);
-  testParse(
-      "0.00000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000037054923438093490813242659465116602918087143186126352238665"
-      "4061891674274999582254154033144959392383231717975289492511095959"
-      "2096640779585747657231506869704773681319051549691937265430115392"
-      "9316510179867828993955338712739726887403536747219495345250565253"
-      "9734220743745353366904984135736109339114232557854653467028698863"
-      "1755341990606652876965097618075398198036065644601954996844545287"
-      "8562428797081554870870561495721040952204106503876761616095480465"
-      "4854302923481671949982122917011832487483775622035971266330696098"
-      "1770527542930458978998057183774359009418156980309146068528141338"
-      "9871550473737887132279287842897827763181104688776671568136524122"
-      "1523792405286695424882335699501538146509629059245968850620692484"
-      "3143597161396297062546730578356156393213233025204703880754948792"
-      "4068421520495603769387037857877153017981772444526303392432171379"
-      "4502140826292446718071005307137966156005859375",
-      5e-324);
-  testParse(
-      "0.00000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000037054923438093490813242659465116602927379485196074357331918"
-      "9261875506630452656563898974877271226994284847423521584288298194"
-      "9925327669548472990810970080864085947255348927335533958843628758"
-      "8673657776653897704274904804228750479055686517373829048435504795"
-      "4877211355023786539048555594678924193378269993917515076140279670"
-      "2329686989589536936193414969790924083008456100972824996564489920"
-      "5681031242249339356786090176104508511951642895866260110264487010"
-      "4014534270108033061877749917013356500179062432395206928717009377"
-      "6045079508629627357314808756707988746935928736893548082281945435"
-      "9059920635836528008522746502352634795082881888442454133993486286"
-      "6832608827839705362543821687804230019924524860745587315427697781"
-      "770943207565842392181565401187981478869915008544921875",
-      5e-324);
-  testParse(
-      "0.00000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000037054923438093490813242659465116602936671827206022362425172"
-      "4461859338985905730873643916609583061605337976871753676065500430"
-      "7754014559511198324390433292023398213191646304979130652257142124"
-      "8030805373439966414594470895717774070707836287528162751620444337"
-      "0020201966302219711192127053621739047642307429980376685251860477"
-      "2904031988572420995421732321506449967980846557343694996284434553"
-      "2799633687417123842701618856487976071699179287855758604433493555"
-      "3174765616734394173773376917014880512874349242754442591103322657"
-      "0319631474328795735631560329641618484453700493477950096035749532"
-      "8248290797935168884766205161807441826984659088108236699850448451"
-      "2141425250392715300205307676106921893339420662245205780234703079"
-      "2275266989920550781084577445403473184185067145693733619245051207"
-      "5931578479504396230612962142122846982018227555473696607567828620"
-      "5497859173707553281928994692862033843994140625",
-      5e-324);
-  testParse(
-      "0.00000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000049406564584124654417656879286822137236505980261432476442558"
-      "5682500675507270208751865299836361635992379796564695445717730926"
-      "6567103559397963987747960107818781263007131903114045278458171678"
-      "4898210368871863605699873072305000638740915356498438731247339727"
-      "3169615140031715385398074126238565591171026658556686768187039560"
-      "3106249319452715914924553293054565444011274801297099995419319894"
-      "0908041656332452475714786901472678015935523861155013480352649347"
-      "2019379026810710749170333222684475333572083243193609238289345836"
-      "8060106011506169809753078342277318329247904982524730776375927247"
-      "8746560847782037344696995336470179726777175851256605511991315048"
-      "9110145103786273816725095583738973359899366480994116420570263709"
-      "0279242767544565229087538682506419718265533447265625",
-      5e-324);
-  testParse(
-      "0.00000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000049406564584124654417656879286822137255090664281328486629065"
-      "6082468340218176357371355183300985305214486055461159629272135398"
-      "2224477339323414654906886530137405794879726658401238665285198410"
-      "3612505562444001026339005255283047822045214896807106137617218810"
-      "3455596362588581729685217044124195299699101530682409986410201174"
-      "4254939317418484033381187996485617213956055714038839994859209159"
-      "5145246546668021447545844262239613135430596645134010468690662437"
-      "0339841720063432972961587222687523358962656863912080563061972395"
-      "6609209942904506566386581488144577804283448495693534803883535441"
-      "7123301171979319097183912655379793790580730250588170643705239377"
-      "9727777948892293692048067560344357106729158083993353350184274303"
-      "9410912596068818947625385549553736509237367567754654738490102415"
-      "1863156959008792461225924284245693964036455110947393215135657241"
-      "099571834741510656385798938572406768798828125",
-      5e-324);
-  testParse(
-      "0.00000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000074109846876186981626485318930233205836174286372252704477330"
-      "8123783348549999164508308066289918784766463435950578985022191918"
-      "4193281559171495314463013739409547362638103099383874530860230785"
-      "8633020359735657987910677425479453774807073494438990690501130507"
-      "9468441487490706733809968271472218678228465115709306934057397726"
-      "3510683981213305753930195236150796396072131289203909993689090575"
-      "7124857594163109741741122991442081904408213007753523232190960930"
-      "9708605846963343899964245834023664974967551244071942532661392196"
-      "3541055085860917957996114367548718018836313960618292137056282677"
-      "9743100947475774264558575685795655526362209377553343136273048244"
-      "3047584810573390849764671399003076293019258118491937701241384968"
-      "6287194322792594125093461156712312786426466050409407761509897584"
-      "8136843040991207538774075715754306035963544889052606784864342758"
-      "900428165258489343614201061427593231201171875",
-      5e-324);
-  testParse(
-      "0.00000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000074109846876186981626485318930233205854758970392148714663837"
-      "8523751013260905313127797949754542453988569694847043168576596389"
-      "9850655339096945981621940161728171894510697854671067917687257517"
-      "7347315553307795408549809608457500958111373034747658096871009590"
-      "9754422710047573078097111189357848386756539987835030152280559340"
-      "4659373979179073872386829939581848166016912201945649993128979841"
-      "1362062484498678713572180352209017023903285791732520220528974020"
-      "8029068540216066123755499834026713000358124864790413857434018755"
-      "2090159017259254714629617513415977493871857473787096164563890871"
-      "8119841271673056017045493004705269590165763776884908267986972573"
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-      "7119559271132676059323785011656582355499267578125",
-      0.5);
-  testParse("1.9999999999999997779553950749686919152736663818359375",
-      1.9999999999999998);
-  testParse(
-      "1.99999999999999977795539507496869191527366638183593758352389719"
-      "0381113941891764598483808712974902503282771811310546630012457530"
-      "84782370845307042372951400466263294219970703125",
-      1.9999999999999998);
-  testParse(
-      "1.99999999999999988897769753748434595763683319091796866647610280"
-      "9618886058108235401516191287025097496717228188689453369987542469"
-      "15217629154692957627048599533736705780029296875",
-      1.9999999999999998);
-  testParse(
-      "1.99999999999999988897769753748434595763683319091796875",
-      2.0);
-  testParse(
-      "1.99999999999999988897769753748434595763683319091796883352389719"
-      "0381113941891764598483808712974902503282771811310546630012457530"
-      "84782370845307042372951400466263294219970703125",
-      2.0);
-  testParse("4503599627370495.5", 4503599627370495.5);
-  testParse(
-      "4503599627370495.50000000000000000000000000000000000018807909613"
-      "1566001274997845955559308450986489083534003441400273004546761512"
-      "75634765625",
-      4503599627370495.5);
-  testParse(
-      "4503599627370495.74999999999999999999999999999999999981192090386"
-      "8433998725002154044440691549013510916465996558599726995453238487"
-      "24365234375",
-      4503599627370495.5);
-  testParse("4503599627370495.75", 4503599627370496.0);
-  testParse(
-      "4503599627370495.75000000000000000000000000000000000018807909613"
-      "1566001274997845955559308450986489083534003441400273004546761512"
-      "75634765625",
-      4503599627370496.0);
-  testParse("4503599627370496", 4503599627370496.0);
-  testParse(
-      "4503599627370496.00000000000000000000000000000000000037615819226"
-      "3132002549995691911118616901972978167068006882800546009093523025"
-      "5126953125",
-      4503599627370496.0);
-  testParse(
-      "4503599627370496.49999999999999999999999999999999999962384180773"
-      "6867997450004308088881383098027021832931993117199453990906476974"
-      "4873046875",
-      4503599627370496.0);
-  testParse("4503599627370496.5", 4503599627370496.0);
-  testParse(
-      "4503599627370496.50000000000000000000000000000000000037615819226"
-      "3132002549995691911118616901972978167068006882800546009093523025"
-      "5126953125",
-      4503599627370497.0);
-  testParse("9007199254740991", 9007199254740991.0);
-  testParse(
-      "9007199254740991.00000000000000000000000000000000000037615819226"
-      "3132002549995691911118616901972978167068006882800546009093523025"
-      "5126953125",
-      9007199254740991.0);
-  testParse(
-      "9007199254740991.49999999999999999999999999999999999962384180773"
-      "6867997450004308088881383098027021832931993117199453990906476974"
-      "4873046875",
-      9007199254740991.0);
-  testParse("9007199254740991.5", 9007199254740992.0);
-  testParse(
-      "9007199254740991.50000000000000000000000000000000000037615819226"
-      "3132002549995691911118616901972978167068006882800546009093523025"
-      "5126953125",
-      9007199254740992.0);
-  testParse(
-      "1797693134862315708145274237317043567980705675258449965989174768"
-      "0315726078002853876058955863276687817154045895351438246423432132"
-      "6889464182768467546703537516986049910576551282076245490090389328"
-      "9440758685084551339423045832369032229481658085593321233482747978"
-      "26204144723168738177180919299881250404026184124858368",
-      1.7976931348623157e+308);
-  testParse(
-      "1797693134862315708145274237317043567980705675258450041064343056"
-      "0785749075118623426984641994452647172104399563141377322686588394"
-      "6121172130178666127034918365540069095282013901258936156392632590"
-      "7055367751483602939820315058278058002847941584484775356682545657"
-      "44106770877499077221865536419145864291265781790932992",
-      1.7976931348623157e+308);
-  testParse(
-      "1797693134862315807937289714053034150799341327100378194286569501"
-      "7574473832160705543739215666582761354682674973879349714831499292"
-      "8620232455220458908340124972127889717295245764493583188543574449"
-      "7703035690903649098158444443687202655781915109457910629727393062"
-      "50541739356374003666875082388828428992938306508423168",
-      1.7976931348623157e+308);
-  testParse(
-      "1797693134862315807937289714053034150799341327100378269361737789"
-      "8044496829276475094664901797758720709633028641669288791094655554"
-      "7851940402630657488671505820681908902000708383676273854845817711"
-      "5317644757302700698555713669596228429148198608349364752927190741"
-      "68444365510704342711559699508093042880177904174497792",
-      double.infinity);
-  testParse(
-      "1797693134862315807937289714053034150799341327100378344436906077"
-      "8514519826392244645590587928934680064583382309459227867357811816"
-      "7083648350040856069002886669235928086706171002858964521148060973"
-      "2932253823701752298952982895505254202514482107240818876126988420"
-      "86346991665034681756244316627357656767417501840572416",
-      double.infinity);
-
-  // Edge cases of algorithm (e+-22/23).
-  testParse("1e22", 1e22);
-  testParse("1e23", 1e23);
-  testParse("1e-22", 1e-22);
-  testParse("1e-23", 1e-23);
-
-  testParseWhitespace("1", 1.0);
-  testParseWhitespace("1.0", 1.0);
-  testParseWhitespace("1e1", 10.0);
-  testParseWhitespace(".1e1", 1.0);
-  testParseWhitespace("1.e1", 10.0);
-  testParseWhitespace("1e+1", 10.0);
-  testParseWhitespace("1e-1", 0.1);
-
-  // Negative tests - things not to allow.
-
-  // Spaces inside the numeral.
-  testFail("- 1");
-  testFail("+ 1");
-  testFail("2 2");
-  testFail("1 .");
-  testFail(". 1");
-  testFail("1e 2");
-  testFail("1 e2");
-  // Invalid characters.
-  testFail("0x0");
-  testFail("0x1H");
-  testFail("12H");
-  testFail("1x2");
-  testFail("00x2");
-  testFail("0x2.2");
-  // Double exponent without value.
-  testFail(".e1");
-  testFail("e1");
-  testFail("e+1");
-  testFail("e-1");
-  testFail("-e1");
-  testFail("-e+1");
-  testFail("-e-1");
-  // Too many signs.
-  testFail("--1");
-  testFail("-+1");
-  testFail("+-1");
-  testFail("++1");
-  // Incorrect ways to write NaN/Infinity.
-  testFail("infinity");
-  testFail("INFINITY");
-  testFail("1.#INF");
-  testFail("inf");
-  testFail("nan");
-  testFail("NAN");
-  testFail("1.#IND");
-  testFail("indef");
-  testFail("qnan");
-  testFail("snan");
-}
diff --git a/tests/corelib_2/double_round2_test.dart b/tests/corelib_2/double_round2_test.dart
deleted file mode 100644
index 1ab9a37326b..00000000000
--- a/tests/corelib_2/double_round2_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  Expect.throwsUnsupportedError(() => double.infinity.round());
-  Expect.throwsUnsupportedError(() => double.negativeInfinity.round());
-  Expect.throwsUnsupportedError(() => double.nan.round());
-}
diff --git a/tests/corelib_2/double_round3_test.dart b/tests/corelib_2/double_round3_test.dart
deleted file mode 100644
index eff16dd6908..00000000000
--- a/tests/corelib_2/double_round3_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  Expect.equals(0, 0.49999999999999994.round());
-  Expect.equals(0, (-0.49999999999999994).round());
-  Expect.isTrue(0.49999999999999994.round() is int);
-  Expect.isTrue((-0.49999999999999994).round() is int);
-}
diff --git a/tests/corelib_2/double_round4_test.dart b/tests/corelib_2/double_round4_test.dart
deleted file mode 100644
index beab41659a4..00000000000
--- a/tests/corelib_2/double_round4_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  // The following numbers are on the border of 52 bits.
-  // For example: 4503599627370499 + 0.5 => 4503599627370500.
-  Expect.equals(4503599627370496, 4503599627370496.0.round());
-  Expect.equals(4503599627370497, 4503599627370497.0.round());
-  Expect.equals(4503599627370498, 4503599627370498.0.round());
-  Expect.equals(4503599627370499, 4503599627370499.0.round());
-
-  Expect.equals(9007199254740991, 9007199254740991.0.round());
-  Expect.equals(9007199254740992, 9007199254740992.0.round());
-
-  Expect.equals(-4503599627370496, (-4503599627370496.0).round());
-  Expect.equals(-4503599627370497, (-4503599627370497.0).round());
-  Expect.equals(-4503599627370498, (-4503599627370498.0).round());
-  Expect.equals(-4503599627370499, (-4503599627370499.0).round());
-
-  Expect.equals(-9007199254740991, (-9007199254740991.0).round());
-  Expect.equals(-9007199254740992, (-9007199254740992.0).round());
-
-  Expect.isTrue(4503599627370496.0.round() is int);
-  Expect.isTrue(4503599627370497.0.round() is int);
-  Expect.isTrue(4503599627370498.0.round() is int);
-  Expect.isTrue(4503599627370499.0.round() is int);
-  Expect.isTrue(9007199254740991.0.round() is int);
-  Expect.isTrue(9007199254740992.0.round() is int);
-  Expect.isTrue((-4503599627370496.0).round() is int);
-  Expect.isTrue((-4503599627370497.0).round() is int);
-  Expect.isTrue((-4503599627370498.0).round() is int);
-  Expect.isTrue((-4503599627370499.0).round() is int);
-  Expect.isTrue((-9007199254740991.0).round() is int);
-  Expect.isTrue((-9007199254740992.0).round() is int);
-}
diff --git a/tests/corelib_2/double_round_test.dart b/tests/corelib_2/double_round_test.dart
deleted file mode 100644
index b975be71c6f..00000000000
--- a/tests/corelib_2/double_round_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  Expect.equals(0, 0.0.round());
-  Expect.equals(0, double.minPositive.round());
-  Expect.equals(0, (2.0 * double.minPositive).round());
-  Expect.equals(0, (1.18e-38).round());
-  Expect.equals(0, (1.18e-38 * 2).round());
-  Expect.equals(1, 0.5.round());
-  Expect.equals(1, 0.9999999999999999.round());
-  Expect.equals(1, 1.0.round());
-  Expect.equals(1, 1.000000000000001.round());
-  Expect.equals(9223372036854775807, double.maxFinite.round()); // //# int64: ok
-
-  Expect.equals(0, (-double.minPositive).round());
-  Expect.equals(0, (2.0 * -double.minPositive).round());
-  Expect.equals(0, (-1.18e-38).round());
-  Expect.equals(0, (-1.18e-38 * 2).round());
-  Expect.equals(-1, (-0.5).round());
-  Expect.equals(-1, (-0.9999999999999999).round());
-  Expect.equals(-1, (-1.0).round());
-  Expect.equals(-1, (-1.000000000000001).round());
-  Expect.equals(-9223372036854775808, (-double.maxFinite).round()); // //# int64: ok
-
-  Expect.isTrue(0.0.round() is int);
-  Expect.isTrue(double.minPositive.round() is int);
-  Expect.isTrue((2.0 * double.minPositive).round() is int);
-  Expect.isTrue((1.18e-38).round() is int);
-  Expect.isTrue((1.18e-38 * 2).round() is int);
-  Expect.isTrue(0.5.round() is int);
-  Expect.isTrue(0.9999999999999999.round() is int);
-  Expect.isTrue(1.0.round() is int);
-  Expect.isTrue(1.000000000000001.round() is int);
-  Expect.isTrue(double.maxFinite.round() is int);
-
-  Expect.isTrue((-double.minPositive).round() is int);
-  Expect.isTrue((2.0 * -double.minPositive).round() is int);
-  Expect.isTrue((-1.18e-38).round() is int);
-  Expect.isTrue((-1.18e-38 * 2).round() is int);
-  Expect.isTrue((-0.5).round() is int);
-  Expect.isTrue((-0.9999999999999999).round() is int);
-  Expect.isTrue((-1.0).round() is int);
-  Expect.isTrue((-1.000000000000001).round() is int);
-  Expect.isTrue((-double.maxFinite).round() is int);
-}
diff --git a/tests/corelib_2/double_round_to_double2_test.dart b/tests/corelib_2/double_round_to_double2_test.dart
deleted file mode 100644
index 630fe2c624b..00000000000
--- a/tests/corelib_2/double_round_to_double2_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  Expect.equals(0.0, 0.49999999999999994.roundToDouble());
-  Expect.equals(0.0, (-0.49999999999999994).roundToDouble());
-  Expect.isTrue(0.49999999999999994.roundToDouble() is double);
-  Expect.isTrue((-0.49999999999999994).roundToDouble().isNegative);
-  Expect.isTrue((-0.49999999999999994).roundToDouble() is double);
-}
diff --git a/tests/corelib_2/double_round_to_double3_test.dart b/tests/corelib_2/double_round_to_double3_test.dart
deleted file mode 100644
index b29840b5d80..00000000000
--- a/tests/corelib_2/double_round_to_double3_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  // The following numbers are on the border of 52 bits.
-  // For example: 4503599627370499 + 0.5 => 4503599627370500.
-  Expect.equals(4503599627370496.0, 4503599627370496.0.roundToDouble());
-  Expect.equals(4503599627370497.0, 4503599627370497.0.roundToDouble());
-  Expect.equals(4503599627370498.0, 4503599627370498.0.roundToDouble());
-  Expect.equals(4503599627370499.0, 4503599627370499.0.roundToDouble());
-  Expect.equals(9007199254740991.0, 9007199254740991.0.roundToDouble());
-  Expect.equals(9007199254740992.0, 9007199254740992.0.roundToDouble());
-  Expect.equals(-4503599627370496.0, (-4503599627370496.0).roundToDouble());
-  Expect.equals(-4503599627370497.0, (-4503599627370497.0).roundToDouble());
-  Expect.equals(-4503599627370498.0, (-4503599627370498.0).roundToDouble());
-  Expect.equals(-4503599627370499.0, (-4503599627370499.0).roundToDouble());
-  Expect.equals(-9007199254740991.0, (-9007199254740991.0).roundToDouble());
-  Expect.equals(-9007199254740992.0, (-9007199254740992.0).roundToDouble());
-  Expect.isTrue(4503599627370496.0.roundToDouble() is double);
-  Expect.isTrue(4503599627370497.0.roundToDouble() is double);
-  Expect.isTrue(4503599627370498.0.roundToDouble() is double);
-  Expect.isTrue(4503599627370499.0.roundToDouble() is double);
-  Expect.isTrue(9007199254740991.0.roundToDouble() is double);
-  Expect.isTrue(9007199254740992.0.roundToDouble() is double);
-  Expect.isTrue((-4503599627370496.0).roundToDouble() is double);
-  Expect.isTrue((-4503599627370497.0).roundToDouble() is double);
-  Expect.isTrue((-4503599627370498.0).roundToDouble() is double);
-  Expect.isTrue((-4503599627370499.0).roundToDouble() is double);
-  Expect.isTrue((-9007199254740991.0).roundToDouble() is double);
-  Expect.isTrue((-9007199254740992.0).roundToDouble() is double);
-}
diff --git a/tests/corelib_2/double_round_to_double_test.dart b/tests/corelib_2/double_round_to_double_test.dart
deleted file mode 100644
index 4111369a198..00000000000
--- a/tests/corelib_2/double_round_to_double_test.dart
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  Expect.equals(0.0, 0.0.roundToDouble());
-  Expect.equals(0.0, double.minPositive.roundToDouble());
-  Expect.equals(0.0, (2.0 * double.minPositive).roundToDouble());
-  Expect.equals(0.0, (1.18e-38).roundToDouble());
-  Expect.equals(0.0, (1.18e-38 * 2).roundToDouble());
-  Expect.equals(1.0, 0.5.roundToDouble());
-  Expect.equals(1.0, 0.9999999999999999.roundToDouble());
-  Expect.equals(1.0, 1.0.roundToDouble());
-  Expect.equals(1.0, 1.000000000000001.roundToDouble());
-  Expect.equals(2.0, 1.5.roundToDouble());
-
-  Expect.equals(double.maxFinite, double.maxFinite.roundToDouble());
-
-  Expect.equals(0.0, (-double.minPositive).roundToDouble());
-  Expect.equals(0.0, (2.0 * -double.minPositive).roundToDouble());
-  Expect.equals(0.0, (-1.18e-38).roundToDouble());
-  Expect.equals(0.0, (-1.18e-38 * 2).roundToDouble());
-  Expect.equals(-1.0, (-0.5).roundToDouble());
-  Expect.equals(-1.0, (-0.9999999999999999).roundToDouble());
-  Expect.equals(-1.0, (-1.0).roundToDouble());
-  Expect.equals(-1.0, (-1.000000000000001).roundToDouble());
-  Expect.equals(-2.0, (-1.5).roundToDouble());
-  Expect.equals(-double.maxFinite, (-double.maxFinite).roundToDouble());
-
-  Expect.equals(double.infinity, double.infinity.roundToDouble());
-  Expect.equals(
-      double.negativeInfinity, double.negativeInfinity.roundToDouble());
-  Expect.isTrue(double.nan.roundToDouble().isNaN);
-
-  Expect.isTrue(0.0.roundToDouble() is double);
-  Expect.isTrue(double.minPositive.roundToDouble() is double);
-  Expect.isTrue((2.0 * double.minPositive).roundToDouble() is double);
-  Expect.isTrue((1.18e-38).roundToDouble() is double);
-  Expect.isTrue((1.18e-38 * 2).roundToDouble() is double);
-  Expect.isTrue(0.5.roundToDouble() is double);
-  Expect.isTrue(0.9999999999999999.roundToDouble() is double);
-  Expect.isTrue(1.0.roundToDouble() is double);
-  Expect.isTrue(1.000000000000001.roundToDouble() is double);
-  Expect.isTrue(double.maxFinite.roundToDouble() is double);
-
-  Expect.isTrue((-double.minPositive).roundToDouble().isNegative);
-  Expect.isTrue((2.0 * -double.minPositive).roundToDouble().isNegative);
-  Expect.isTrue((-1.18e-38).roundToDouble().isNegative);
-  Expect.isTrue((-1.18e-38 * 2).roundToDouble().isNegative);
-
-  Expect.isTrue((-double.minPositive).roundToDouble() is double);
-  Expect.isTrue((2.0 * -double.minPositive).roundToDouble() is double);
-  Expect.isTrue((-1.18e-38).roundToDouble() is double);
-  Expect.isTrue((-1.18e-38 * 2).roundToDouble() is double);
-  Expect.isTrue((-0.5).roundToDouble() is double);
-  Expect.isTrue((-0.9999999999999999).roundToDouble() is double);
-  Expect.isTrue((-1.0).roundToDouble() is double);
-  Expect.isTrue((-1.000000000000001).roundToDouble() is double);
-  Expect.isTrue((-double.maxFinite).roundToDouble() is double);
-}
diff --git a/tests/corelib_2/double_truncate2_test.dart b/tests/corelib_2/double_truncate2_test.dart
deleted file mode 100644
index 11879caef33..00000000000
--- a/tests/corelib_2/double_truncate2_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  Expect.throwsUnsupportedError(() => double.infinity.truncate());
-  Expect.throwsUnsupportedError(() => double.negativeInfinity.truncate());
-  Expect.throwsUnsupportedError(() => double.nan.truncate());
-}
diff --git a/tests/corelib_2/double_truncate_test.dart b/tests/corelib_2/double_truncate_test.dart
deleted file mode 100644
index 221b8e5eaed..00000000000
--- a/tests/corelib_2/double_truncate_test.dart
+++ /dev/null
@@ -1,90 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  Expect.equals(0, 0.0.truncate());
-  Expect.equals(0, double.minPositive.truncate());
-  Expect.equals(0, (2.0 * double.minPositive).truncate());
-  Expect.equals(0, (1.18e-38).truncate());
-  Expect.equals(0, (1.18e-38 * 2).truncate());
-  Expect.equals(0, 0.49999999999999994.truncate());
-  Expect.equals(0, 0.5.truncate());
-  Expect.equals(0, 0.9999999999999999.truncate());
-  Expect.equals(1, 1.0.truncate());
-  Expect.equals(1, 1.000000000000001.truncate());
-  // The following numbers are on the border of 52 bits.
-  // For example: 4503599627370499 + 0.5 => 4503599627370500.
-  Expect.equals(4503599627370496, 4503599627370496.0.truncate());
-  Expect.equals(4503599627370497, 4503599627370497.0.truncate());
-  Expect.equals(4503599627370498, 4503599627370498.0.truncate());
-  Expect.equals(4503599627370499, 4503599627370499.0.truncate());
-
-  Expect.equals(9007199254740991, 9007199254740991.0.truncate());
-  Expect.equals(9007199254740992, 9007199254740992.0.truncate());
-  Expect.equals(9223372036854775807, double.maxFinite.truncate()); // //# int64: ok
-
-  Expect.equals(0, (-double.minPositive).truncate());
-  Expect.equals(0, (2.0 * -double.minPositive).truncate());
-  Expect.equals(0, (-1.18e-38).truncate());
-  Expect.equals(0, (-1.18e-38 * 2).truncate());
-  Expect.equals(0, (-0.49999999999999994).truncate());
-  Expect.equals(0, (-0.5).truncate());
-  Expect.equals(0, (-0.9999999999999999).truncate());
-  Expect.equals(-1, (-1.0).truncate());
-  Expect.equals(-1, (-1.000000000000001).truncate());
-  Expect.equals(-4503599627370496, (-4503599627370496.0).truncate());
-  Expect.equals(-4503599627370497, (-4503599627370497.0).truncate());
-  Expect.equals(-4503599627370498, (-4503599627370498.0).truncate());
-  Expect.equals(-4503599627370499, (-4503599627370499.0).truncate());
-  Expect.equals(-9007199254740991, (-9007199254740991.0).truncate());
-  Expect.equals(-9007199254740992, (-9007199254740992.0).truncate());
-  Expect.equals(-9223372036854775808, (-double.maxFinite).truncate()); // //# int64: ok
-
-  Expect.isTrue(0.0.truncate() is int);
-  Expect.isTrue(double.minPositive.truncate() is int);
-  Expect.isTrue((2.0 * double.minPositive).truncate() is int);
-  Expect.isTrue((1.18e-38).truncate() is int);
-  Expect.isTrue((1.18e-38 * 2).truncate() is int);
-  Expect.isTrue(0.49999999999999994.truncate() is int);
-  Expect.isTrue(0.5.truncate() is int);
-  Expect.isTrue(0.9999999999999999.truncate() is int);
-  Expect.isTrue(1.0.truncate() is int);
-  Expect.isTrue(1.000000000000001.truncate() is int);
-  Expect.isTrue(4503599627370496.0.truncate() is int);
-  Expect.isTrue(4503599627370497.0.truncate() is int);
-  Expect.isTrue(4503599627370498.0.truncate() is int);
-  Expect.isTrue(4503599627370499.0.truncate() is int);
-  Expect.isTrue(9007199254740991.0.truncate() is int);
-  Expect.isTrue(9007199254740992.0.truncate() is int);
-  Expect.isTrue(double.maxFinite.truncate() is int);
-
-  Expect.isTrue((-double.minPositive).truncateToDouble().isNegative);
-  Expect.isTrue((2.0 * -double.minPositive).truncateToDouble().isNegative);
-  Expect.isTrue((-1.18e-38).truncateToDouble().isNegative);
-  Expect.isTrue((-1.18e-38 * 2).truncateToDouble().isNegative);
-  Expect.isTrue((-0.49999999999999994).truncateToDouble().isNegative);
-  Expect.isTrue((-0.5).truncateToDouble().isNegative);
-  Expect.isTrue((-0.9999999999999999).truncateToDouble().isNegative);
-
-  Expect.isTrue((-double.minPositive).truncate() is int);
-  Expect.isTrue((2.0 * -double.minPositive).truncate() is int);
-  Expect.isTrue((-1.18e-38).truncate() is int);
-  Expect.isTrue((-1.18e-38 * 2).truncate() is int);
-  Expect.isTrue((-0.49999999999999994).truncate() is int);
-  Expect.isTrue((-0.5).truncate() is int);
-  Expect.isTrue((-0.9999999999999999).truncate() is int);
-  Expect.isTrue((-1.0).truncate() is int);
-  Expect.isTrue((-1.000000000000001).truncate() is int);
-  Expect.isTrue((-4503599627370496.0).truncate() is int);
-  Expect.isTrue((-4503599627370497.0).truncate() is int);
-  Expect.isTrue((-4503599627370498.0).truncate() is int);
-  Expect.isTrue((-4503599627370499.0).truncate() is int);
-  Expect.isTrue((-9007199254740991.0).truncate() is int);
-  Expect.isTrue((-9007199254740992.0).truncate() is int);
-  Expect.isTrue((-double.maxFinite).truncate() is int);
-}
diff --git a/tests/corelib_2/double_truncate_to_double_test.dart b/tests/corelib_2/double_truncate_to_double_test.dart
deleted file mode 100644
index dc725be9026..00000000000
--- a/tests/corelib_2/double_truncate_to_double_test.dart
+++ /dev/null
@@ -1,87 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  Expect.equals(0.0, 0.0.truncateToDouble());
-  Expect.equals(0.0, double.minPositive.truncateToDouble());
-  Expect.equals(0.0, (2.0 * double.minPositive).truncateToDouble());
-  Expect.equals(0.0, (1.18e-38).truncateToDouble());
-  Expect.equals(0.0, (1.18e-38 * 2).truncateToDouble());
-  Expect.equals(0.0, 0.49999999999999994.truncateToDouble());
-  Expect.equals(0.0, 0.5.truncateToDouble());
-  Expect.equals(0.0, 0.9999999999999999.truncateToDouble());
-  Expect.equals(1.0, 1.0.truncateToDouble());
-  Expect.equals(1.0, 1.000000000000001.truncateToDouble());
-  // The following numbers are on the border of 52 bits.
-  // For example: 4503599627370499 + 0.5 => 4503599627370500.
-  Expect.equals(4503599627370496.0, 4503599627370496.0.truncateToDouble());
-  Expect.equals(4503599627370497.0, 4503599627370497.0.truncateToDouble());
-  Expect.equals(4503599627370498.0, 4503599627370498.0.truncateToDouble());
-  Expect.equals(4503599627370499.0, 4503599627370499.0.truncateToDouble());
-
-  Expect.equals(9007199254740991.0, 9007199254740991.0.truncateToDouble());
-  Expect.equals(9007199254740992.0, 9007199254740992.0.truncateToDouble());
-  Expect.equals(double.maxFinite, double.maxFinite.truncateToDouble());
-
-  Expect.equals(0.0, (-double.minPositive).truncateToDouble());
-  Expect.equals(0.0, (2.0 * -double.minPositive).truncateToDouble());
-  Expect.equals(0.0, (-1.18e-38).truncateToDouble());
-  Expect.equals(0.0, (-1.18e-38 * 2).truncateToDouble());
-  Expect.equals(0.0, (-0.49999999999999994).truncateToDouble());
-  Expect.equals(0.0, (-0.5).truncateToDouble());
-  Expect.equals(0.0, (-0.9999999999999999).truncateToDouble());
-  Expect.equals(-1.0, (-1.0).truncateToDouble());
-  Expect.equals(-1.0, (-1.000000000000001).truncateToDouble());
-  Expect.equals(-4503599627370496.0, (-4503599627370496.0).truncateToDouble());
-  Expect.equals(-4503599627370497.0, (-4503599627370497.0).truncateToDouble());
-  Expect.equals(-4503599627370498.0, (-4503599627370498.0).truncateToDouble());
-  Expect.equals(-4503599627370499.0, (-4503599627370499.0).truncateToDouble());
-  Expect.equals(-9007199254740991.0, (-9007199254740991.0).truncateToDouble());
-  Expect.equals(-9007199254740992.0, (-9007199254740992.0).truncateToDouble());
-  Expect.equals(-double.maxFinite, (-double.maxFinite).truncateToDouble());
-
-  Expect.equals(double.infinity, double.infinity.truncateToDouble());
-  Expect.equals(
-      double.negativeInfinity, double.negativeInfinity.truncateToDouble());
-  Expect.isTrue(double.nan.truncateToDouble().isNaN);
-
-  Expect.isTrue(0.0.truncateToDouble() is double);
-  Expect.isTrue(double.minPositive.truncateToDouble() is double);
-  Expect.isTrue((2.0 * double.minPositive).truncateToDouble() is double);
-  Expect.isTrue((1.18e-38).truncateToDouble() is double);
-  Expect.isTrue((1.18e-38 * 2).truncateToDouble() is double);
-  Expect.isTrue(0.49999999999999994.truncateToDouble() is double);
-  Expect.isTrue(0.5.truncateToDouble() is double);
-  Expect.isTrue(0.9999999999999999.truncateToDouble() is double);
-  Expect.isTrue(1.0.truncateToDouble() is double);
-  Expect.isTrue(1.000000000000001.truncateToDouble() is double);
-  Expect.isTrue(4503599627370496.0.truncateToDouble() is double);
-  Expect.isTrue(4503599627370497.0.truncateToDouble() is double);
-  Expect.isTrue(4503599627370498.0.truncateToDouble() is double);
-  Expect.isTrue(4503599627370499.0.truncateToDouble() is double);
-  Expect.isTrue(9007199254740991.0.truncateToDouble() is double);
-  Expect.isTrue(9007199254740992.0.truncateToDouble() is double);
-  Expect.isTrue(double.maxFinite.truncateToDouble() is double);
-
-  Expect.isTrue((-double.minPositive).truncateToDouble() is double);
-  Expect.isTrue((2.0 * -double.minPositive).truncateToDouble() is double);
-  Expect.isTrue((-1.18e-38).truncateToDouble() is double);
-  Expect.isTrue((-1.18e-38 * 2).truncateToDouble() is double);
-  Expect.isTrue((-0.49999999999999994).truncateToDouble() is double);
-  Expect.isTrue((-0.5).truncateToDouble() is double);
-  Expect.isTrue((-0.9999999999999999).truncateToDouble() is double);
-  Expect.isTrue((-1.0).truncateToDouble() is double);
-  Expect.isTrue((-1.000000000000001).truncateToDouble() is double);
-  Expect.isTrue((-4503599627370496.0).truncateToDouble() is double);
-  Expect.isTrue((-4503599627370497.0).truncateToDouble() is double);
-  Expect.isTrue((-4503599627370498.0).truncateToDouble() is double);
-  Expect.isTrue((-4503599627370499.0).truncateToDouble() is double);
-  Expect.isTrue((-9007199254740991.0).truncateToDouble() is double);
-  Expect.isTrue((-9007199254740992.0).truncateToDouble() is double);
-  Expect.isTrue((-double.maxFinite).truncateToDouble() is double);
-}
diff --git a/tests/corelib_2/double_try_parse_test.dart b/tests/corelib_2/double_try_parse_test.dart
deleted file mode 100644
index 63b6048b2ae..00000000000
--- a/tests/corelib_2/double_try_parse_test.dart
+++ /dev/null
@@ -1,1211 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--no-use-field-guards
-// VMOptions=
-
-// @dart = 2.9
-
-import "dart:math" show pow;
-import "package:expect/expect.dart";
-
-// U+0085 has been whitespace, isn't any more in all browsers.
-const whiteSpace = const [
-  "",
-  "\x09",
-  "\x0a",
-  "\x0b",
-  "\x0c",
-  "\x0d",
-  "\xa0",
-  "\u1680",
-  "\u2000",
-  "\u2001",
-  "\u2002",
-  "\u2003",
-  "\u2004",
-  "\u2005",
-  "\u2006",
-  "\u2007",
-  "\u2008",
-  "\u2009",
-  "\u200a",
-  "\u2028",
-  "\u2029",
-  "\u202f",
-  "\u205f",
-  "\u3000",
-  "\uFEFF"
-];
-
-void expectNumEquals(double expected, var actual, String message) {
-  if (expected.isNaN) {
-    Expect.isTrue(actual is double && actual.isNaN, "isNaN: $message");
-  } else {
-    Expect.identical(expected, actual, message);
-  }
-}
-
-// Test source surrounded by any combination of whitespace.
-void testParseAllWhitespace(String source, double result) {
-  for (String ws1 in whiteSpace) {
-    for (String ws2 in whiteSpace) {
-      String padded = "$ws1$source$ws2";
-      // Use Expect.identical because it also handles NaN and 0.0/-0.0.
-      // Except on dart2js: http://dartbug.com/11551
-      expectNumEquals(result, double.tryParse(padded), "parse '$padded'");
-      padded = "$ws1$ws2$source";
-      expectNumEquals(result, double.tryParse(padded), "parse '$padded'");
-      padded = "$source$ws1$ws2";
-      expectNumEquals(result, double.tryParse(padded), "parse '$padded'");
-    }
-  }
-}
-
-// Test source and -source surrounded by any combination of whitespace.
-void testParseWhitespace(String source, double result) {
-  assert(result >= 0);
-  testParseAllWhitespace(source, result);
-  testParseAllWhitespace("-$source", -result);
-}
-
-// Test parsing source, optionally preceded and/or followed by whitespace.
-void testParse(String source, double result, [name = ""]) {
-  expectNumEquals(result, double.tryParse(source), "parse '$source:$name");
-  expectNumEquals(
-      result, double.tryParse(" $source"), "parse ' $source':$name");
-  expectNumEquals(
-      result, double.tryParse("$source "), "parse '$source ':$name");
-  expectNumEquals(
-      result, double.tryParse(" $source "), "parse ' $source ':$name");
-
-  expectNumEquals(result, double.tryParse("+$source"), "parse '+$source:$name");
-  expectNumEquals(
-      result, double.tryParse(" +$source"), "parse ' +$source':$name");
-  expectNumEquals(
-      result, double.tryParse("+$source "), "parse '+$source ':$name");
-  expectNumEquals(
-      result, double.tryParse(" +$source "), "parse ' +$source ':$name");
-
-  expectNumEquals(
-      -result, double.tryParse("-$source"), "parse '-$source:$name");
-  expectNumEquals(
-      -result, double.tryParse(" -$source"), "parse ' -$source':$name");
-  expectNumEquals(
-      -result, double.tryParse("-$source "), "parse '-$source ':$name");
-  expectNumEquals(
-      -result, double.tryParse(" -$source "), "parse ' -$source ':$name");
-}
-
-void testDouble(double value) {
-  testParse("$value", value);
-  if (value.isFinite) {
-    String exp = value.toStringAsExponential();
-    String lcexp = exp.toLowerCase();
-    testParse(lcexp, value);
-    String ucexp = exp.toUpperCase();
-    testParse(ucexp, value);
-  }
-}
-
-void testFail(String source) {
-  var object = new Object();
-  Expect.isNull(double.tryParse(source), "Fail: '$source'");
-}
-
-void main() {
-  testDouble(0.0);
-  testDouble(5e-324);
-  testDouble(2.225073858507201e-308);
-  testDouble(2.2250738585072014e-308);
-  testDouble(0.49999999999999994);
-  testDouble(0.5);
-  testDouble(0.50000000000000006);
-  testDouble(0.9999999999999999);
-  testDouble(1.0);
-  testDouble(1.0000000000000002);
-  testDouble(4294967295.0);
-  testDouble(4294967296.0);
-  testDouble(4503599627370495.5);
-  testDouble(4503599627370497.0);
-  testDouble(9007199254740991.0);
-  testDouble(9007199254740992.0);
-  testDouble(1.7976931348623157e+308);
-  testDouble(double.infinity);
-  testDouble(double.nan);
-
-  // Strings that cannot occur from toString of a number.
-  testParse("000000000000", 0.0);
-  testParse("000000000001", 1.0);
-  testParse("000000000000.0000000000000", 0.0);
-  testParse("000000000001.0000000000000", 1.0);
-  testParse("0e0", 0.0);
-  testParse("0e+0", 0.0);
-  testParse("0e-0", 0.0);
-  testParse("1e0", 1.0);
-  testParse("1e+0", 1.0);
-  testParse("1e-0", 1.0);
-  testParse("1.", 1.0);
-  testParse(".1", 0.1);
-  testParse("1.e1", 10.0);
-  testParse(".1e1", 1.0);
-  testParse("Infinity", double.infinity);
-  testParse("NaN", double.nan);
-
-  // Cases where mantissa and 10^exponent are representable as a double.
-  for (int i = -22; i <= 22; i++) {
-    for (double j in [1.0, 9007199254740991.0, 9007199254740992.0]) {
-      var value = (i >= 0) ? j * pow(10.0, i) : j / pow(10.0, -i);
-      testParse("${j}e$i", value, "$i/$j");
-      testParse("${j}E$i", value, "$i/$j");
-      if (i >= 0) {
-        testParse("${j}e+$i", value, "$i/$j");
-        testParse("${j}E+$i", value, "$i/$j");
-      }
-    }
-  }
-  for (int i = 0; i <= 22; i++) {
-    var digits = "9007199254740991";
-    for (int i = 0; i < digits.length; i++) {
-      int dotIndex = digits.length - i;
-      var string = "${digits.substring(0, dotIndex)}."
-          "${digits.substring(dotIndex)}e$i";
-      testParse(string, 9007199254740991.0);
-    }
-  }
-
-  testParse(
-      "0.00000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000012351641146031163604414219821705534309126495065358119110639"
-      "6420625168876817552187966324959090408998094949141173861429432731"
-      "6641775889849490996936990026954695315751782975778511319614542919"
-      "6224552592217965901424968268076250159685228839124609682811834931"
-      "8292403785007928846349518531559641397792756664639171692046759890"
-      "0776562329863178978731138323263641361002818700324274998854829973"
-      "5227010414083113118928696725368169503983880965288753370088162336"
-      "8004844756702677687292583305671118833393020810798402309572336459"
-      "2015026502876542452438269585569329582311976245631182694093981811"
-      "9686640211945509336174248834117544931694293962814151377997828762"
-      "2277536275946568454181273895934743339974841620248529105142565927"
-      "256981069188614130727188467062660492956638336181640625",
-      0.0);
-  testParse(
-      "0.00000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000024703282292062327208828439643411068618252990130716238221279"
-      "2841250337753635104375932649918180817996189898282347722858865463"
-      "3283551779698981993873980053909390631503565951557022639229085839"
-      "2449105184435931802849936536152500319370457678249219365623669863"
-      "6584807570015857692699037063119282795585513329278343384093519780"
-      "1553124659726357957462276646527282722005637400648549997709659947"
-      "0454020828166226237857393450736339007967761930577506740176324673"
-      "6009689513405355374585166611342237666786041621596804619144672918"
-      "4030053005753084904876539171138659164623952491262365388187963623"
-      "9373280423891018672348497668235089863388587925628302755995657524"
-      "4555072551893136908362547791869486679949683240497058210285131854"
-      "51396213837722826145437693412532098591327667236328125",
-      0.0);
-  testParse(
-      "0.00000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000024703282292062327208828439643411068618252990130716238221279"
-      "2841250337753635104375932649918180817996189898282347722858865463"
-      "3283551779698981993873980053909390631503565951557022639229085839"
-      "2449105184435931802849936536152500319370457678249219365623669863"
-      "6584807570015857692699037063119282795585513329278343384093519780"
-      "1553124659726357957462276646527282722005637400648549997709659947"
-      "0454020828166226237857393450736339007967761930577506740176324673"
-      "6009689513405355374585166611342237666786041621596804619144672918"
-      "4030053005753084904876539171138659164623952491262365388187963623"
-      "9373280423891018672348497668235089863388587925628302755995657524"
-      "4555072551893136908362547791869486679949683240497058210285131854"
-      "51396213837722826145437693412532098591327667236328125",
-      0.0);
-  testParse(
-      "0.00000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000024703282292062327208828439643411068627545332140664243314532"
-      "8041234170109088178685677591650492652607243027730579814636067699"
-      "1112238669661707327453443265068702897439863329200619332642599205"
-      "1806252781222000513169502627641523911022607448403553068808609405"
-      "1727798181294290864842608522062097649849550765341204993205100587"
-      "2127469658709242016690593998242808606978027857019419997429604579"
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-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000100208418000448650025174695"
-      "1035150178458809017822159251011531515138151971877843746285762442"
-      "8545112214057342269294258292239779301929355259416640067909319649"
-      "7365336576866690449490575153391617964764463657240626936945707789"
-      "0322677840073401894046998179185686691822730198820493814317137229"
-      "5822164306994752582767555905533610628109411569344063803273395309"
-      "4016739578124191615155910675820643598048478728683293279406596985"
-      "3795142966229399885915374796852136102192598807080147602085351627"
-      "7462738186176388661491270541112149644974737467220377156516124492"
-      "5297987696655648150350049348782647584189423429523649017245633309"
-      "0650703736050481424426844685046761507858235356421727632283550512"
-      "9294184882356332903145058239310065886479547694117011957754993659"
-      "5152049332041520812604025151794328168042160636342216519487980314"
-      "421878240614097350935640662328296457417309284210205078125", //
-      1.0020841800044866e-292); //
-  testParse(
-      "0.00000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000200416836000897255548872220"
-      "0630023738871074569163505490783914884205771542336808210387292522"
-      "0426513773371285555269939139667533951768747348715410293510510274"
-      "9473643242267695845324274779211200861374232469021139022270213528"
-      "6462413252451807248010301677826829802384000871843763078195635583"
-      "5519882659021798720200352081612073758236883604191202305937584019"
-      "3447504651307941031064654937754410393532579156664506650227987556"
-      "2093186373340695057796485067216997253892307748415460848623417226"
-      "4622904518424429578269271391797007961345371296322204255566117522"
-      "4763967378926030323867148635273985338412963098572424905483014370"
-      "3443797280914164309330161600193180015563420351180667003643504189"
-      "5081099906363532431297601321684709319015382789075374603271484375",
-      2.0041683600089726e-292);
-  testParse(
-      "0.00000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000200416836000897255548872220"
-      "0630023738871074569163505574481890911007854687713506162758965222"
-      "4840173246459826034418207298006206546777917928621911053111114678"
-      "3542034344223350160844932607677195090655478417325360087361598902"
-      "8859634092878467992971483956433285698142681516745516189450104957"
-      "7673335518200777143086844192589698055647401766388749556385604848"
-      "2554040768398804080767078333840188274890434785872022703032633767"
-      "3882607263739448150662510983829295362790994029984940850192327677"
-      "7992704781037731327797268594965806814239809203904416482609330009"
-      "6579729771644447126611962161018097402548737449790829856759351526"
-      "9401865064174154880193607978359466823030668134214775268139808498"
-      "5465639429401631550091460221837129865002621877730073862662220222"
-      "0152049332041520812604025151794328168042160636342216519487980314"
-      "421878240614097350935640662328296457417309284210205078125",
-      2.0041683600089726e-292);
-  testParse(
-      "0.00000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000200416836000897266674241512"
-      "5990092893382710435783708618046737880520279924626481102375841562"
-      "2971952227424324582377181263362531222277482271385126614686635925"
-      "9685314067200635635457506918405218284491037257929836137538435979"
-      "6412317598735565265589451930053281854061344785940439548923591241"
-      "1320814858995257697204303847509424186616591244519112755417854425"
-      "8434194101906757006322811447097462772136890288028752548167319843"
-      "0783329927522091597006012323920368828167500792497449435156873056"
-      "7143847087986563890155593009650632514154740344478523429367831657"
-      "3498325793444721613958165862230644699700772511863535760820571697"
-      "3971098153820878087915873975418835554400811267045201672129946935"
-      "0381108086393667096854941760689934113520452305882988042245006340"
-      "4847950667958479187395974848205671831957839363657783480512019685"
-      "578121759385902649064359337671703542582690715789794921875",
-      2.0041683600089726e-292);
-  testParse(
-      "0.00000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000200416836000897266674241512"
-      "5990092893382710435783708701744713907322363070003179054747514262"
-      "7385611700512865061525449421701203817286652851291627374287240329"
-      "3753705169156289950978164746871212513772283206234057202629821353"
-      "8809538439162226010550634208659737749820025430842192660178060615"
-      "3474267718174236120090795958487048484027109406716660005865875254"
-      "7540730218997620056025234843183240653494745917236268600971966054"
-      "2572750817920844689872038240532666937066187074066929436725783508"
-      "0513647350599865639683590212819431367049178252060735656411044144"
-      "5314088186163138416702979387974756763836546863081940712096908853"
-      "9929165937080868658779320353585122361868059050079309936626251244"
-      "0765647609431766215648800660842354659507691394537687301635742187"
-      "5", //
-      2.004168360008973e-292); //
-  testParse(
-      "0.00000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000000000000000000000000000000"
-      "0000000000000000000000000000000000000200416836000897266674241512"
-      "5990092893382710435783708785442689934124446215379877007119186963"
-      "1799271173601405540673717580039876412295823431198128133887844732"
-      "7822096271111944266498822575337206743053529154538278267721206728"
-      "1206759279588886755511816487266193645578706075743945771432529989"
-      "5627720577353214542977288069464672781437627568914207256313896083"
-      "6647266336088483105727658239269018534852601546443784653776612265"
-      "4362171708319597782738064157144965045964873355636409438294693959"
-      "3883447613213167389211587415988230219943616159642947883454256631"
-      "7129850578881555219447792913718868827972321214300345663373246010"
-      "5887233720340859229642766731751409169335306833113418201122555553"
-      "1150187132469865334442659560994775205494930483192386561026478034"
-      "5152049332041520812604025151794328168042160636342216519487980314"
-      "421878240614097350935640662328296457417309284210205078125", //
-      2.004168360008973e-292); //
-  testParse("0.99999999999999988897769753748434595763683319091796875",
-      0.9999999999999999);
-  testParse(
-      "0.99999999999999988897769753748434595763683319091796879176194859"
-      "5190556970945882299241904356487451251641385905655273315006228765"
-      "423911854226535211864757002331316471099853515625",
-      0.9999999999999999);
-  testParse(
-      "0.99999999999999994448884876874217297881841659545898433323805140"
-      "4809443029054117700758095643512548748358614094344726684993771234"
-      "576088145773464788135242997668683528900146484375",
-      0.9999999999999999);
-  testParse("0.999999999999999944488848768742172978818416595458984375", 1.0); //
-  testParse(
-      "0.99999999999999994448884876874217297881841659545898441676194859"
-      "5190556970945882299241904356487451251641385905655273315006228765"
-      "423911854226535211864757002331316471099853515625", //
-      1.0); //
-  testParse("0.499999999999999944488848768742172978818416595458984375",
-      0.49999999999999994);
-  testParse(
-      "0.49999999999999994448884876874217297881841659545898439588097429"
-      "7595278485472941149620952178243725625820692952827636657503114382"
-      "7119559271132676059323785011656582355499267578125",
-      0.49999999999999994);
-  testParse(
-      "0.49999999999999997224442438437108648940920829772949216661902570"
-      "2404721514527058850379047821756274374179307047172363342496885617"
-      "2880440728867323940676214988343417644500732421875",
-      0.49999999999999994);
-  testParse(
-      "0.4999999999999999722444243843710864894092082977294921875", 0.5); //
-  testParse(
-      "0.49999999999999997224442438437108648940920829772949220838097429"
-      "7595278485472941149620952178243725625820692952827636657503114382"
-      "7119559271132676059323785011656582355499267578125", //
-      0.5); //
-  testParse("1.9999999999999997779553950749686919152736663818359375",
-      1.9999999999999998);
-  testParse(
-      "1.99999999999999977795539507496869191527366638183593758352389719"
-      "0381113941891764598483808712974902503282771811310546630012457530"
-      "84782370845307042372951400466263294219970703125",
-      1.9999999999999998);
-  testParse(
-      "1.99999999999999988897769753748434595763683319091796866647610280"
-      "9618886058108235401516191287025097496717228188689453369987542469"
-      "15217629154692957627048599533736705780029296875",
-      1.9999999999999998);
-  testParse("1.99999999999999988897769753748434595763683319091796875", 2.0); //
-  testParse(
-      "1.99999999999999988897769753748434595763683319091796883352389719"
-      "0381113941891764598483808712974902503282771811310546630012457530"
-      "84782370845307042372951400466263294219970703125", //
-      2.0); //
-  testParse("4503599627370495.5", 4503599627370495.5);
-  testParse(
-      "4503599627370495.50000000000000000000000000000000000018807909613"
-      "1566001274997845955559308450986489083534003441400273004546761512"
-      "75634765625",
-      4503599627370495.5);
-  testParse(
-      "4503599627370495.74999999999999999999999999999999999981192090386"
-      "8433998725002154044440691549013510916465996558599726995453238487"
-      "24365234375",
-      4503599627370495.5);
-  testParse("4503599627370495.75", 4503599627370496.0);
-  testParse(
-      "4503599627370495.75000000000000000000000000000000000018807909613"
-      "1566001274997845955559308450986489083534003441400273004546761512"
-      "75634765625",
-      4503599627370496.0);
-  testParse("4503599627370496", 4503599627370496.0);
-  testParse(
-      "4503599627370496.00000000000000000000000000000000000037615819226"
-      "3132002549995691911118616901972978167068006882800546009093523025"
-      "5126953125",
-      4503599627370496.0);
-  testParse(
-      "4503599627370496.49999999999999999999999999999999999962384180773"
-      "6867997450004308088881383098027021832931993117199453990906476974"
-      "4873046875",
-      4503599627370496.0);
-  testParse("4503599627370496.5", 4503599627370496.0);
-  testParse(
-      "4503599627370496.50000000000000000000000000000000000037615819226"
-      "3132002549995691911118616901972978167068006882800546009093523025"
-      "5126953125",
-      4503599627370497.0);
-  testParse("9007199254740991", 9007199254740991.0);
-  testParse(
-      "9007199254740991.00000000000000000000000000000000000037615819226"
-      "3132002549995691911118616901972978167068006882800546009093523025"
-      "5126953125",
-      9007199254740991.0);
-  testParse(
-      "9007199254740991.49999999999999999999999999999999999962384180773"
-      "6867997450004308088881383098027021832931993117199453990906476974"
-      "4873046875",
-      9007199254740991.0);
-  testParse("9007199254740991.5", 9007199254740992.0);
-  testParse(
-      "9007199254740991.50000000000000000000000000000000000037615819226"
-      "3132002549995691911118616901972978167068006882800546009093523025"
-      "5126953125",
-      9007199254740992.0);
-  testParse(
-      "1797693134862315708145274237317043567980705675258449965989174768"
-      "0315726078002853876058955863276687817154045895351438246423432132"
-      "6889464182768467546703537516986049910576551282076245490090389328"
-      "9440758685084551339423045832369032229481658085593321233482747978"
-      "26204144723168738177180919299881250404026184124858368",
-      1.7976931348623157e+308);
-  testParse(
-      "1797693134862315708145274237317043567980705675258450041064343056"
-      "0785749075118623426984641994452647172104399563141377322686588394"
-      "6121172130178666127034918365540069095282013901258936156392632590"
-      "7055367751483602939820315058278058002847941584484775356682545657"
-      "44106770877499077221865536419145864291265781790932992",
-      1.7976931348623157e+308);
-  testParse(
-      "1797693134862315807937289714053034150799341327100378194286569501"
-      "7574473832160705543739215666582761354682674973879349714831499292"
-      "8620232455220458908340124972127889717295245764493583188543574449"
-      "7703035690903649098158444443687202655781915109457910629727393062"
-      "50541739356374003666875082388828428992938306508423168",
-      1.7976931348623157e+308);
-  testParse(
-      "1797693134862315807937289714053034150799341327100378269361737789"
-      "8044496829276475094664901797758720709633028641669288791094655554"
-      "7851940402630657488671505820681908902000708383676273854845817711"
-      "5317644757302700698555713669596228429148198608349364752927190741"
-      "68444365510704342711559699508093042880177904174497792",
-      double.infinity);
-  testParse(
-      "1797693134862315807937289714053034150799341327100378344436906077"
-      "8514519826392244645590587928934680064583382309459227867357811816"
-      "7083648350040856069002886669235928086706171002858964521148060973"
-      "2932253823701752298952982895505254202514482107240818876126988420"
-      "86346991665034681756244316627357656767417501840572416",
-      double.infinity);
-
-  // Edge cases of algorithm (e+-22/23).
-  testParse("1e22", 1e22);
-  testParse("1e23", 1e23);
-  testParse("1e-22", 1e-22);
-  testParse("1e-23", 1e-23);
-
-  testParseWhitespace("1", 1.0);
-  testParseWhitespace("1.0", 1.0);
-  testParseWhitespace("1e1", 10.0);
-  testParseWhitespace(".1e1", 1.0);
-  testParseWhitespace("1.e1", 10.0);
-  testParseWhitespace("1e+1", 10.0);
-  testParseWhitespace("1e-1", 0.1);
-
-  // Negative tests - things not to allow.
-
-  // Spaces inside the numeral.
-  testFail("- 1");
-  testFail("+ 1");
-  testFail("2 2");
-  testFail("1 .");
-  testFail(". 1");
-  testFail("1e 2");
-  testFail("1 e2");
-  // Invalid characters.
-  testFail("0x0");
-  testFail("0x1H");
-  testFail("12H");
-  testFail("1x2");
-  testFail("00x2");
-  testFail("0x2.2");
-  // Double exponent without value.
-  testFail(".e1");
-  testFail("e1");
-  testFail("e+1");
-  testFail("e-1");
-  testFail("-e1");
-  testFail("-e+1");
-  testFail("-e-1");
-  // Too many signs.
-  testFail("--1");
-  testFail("-+1");
-  testFail("+-1");
-  testFail("++1");
-  // Incorrect ways to write NaN/Infinity.
-  testFail("infinity");
-  testFail("INFINITY");
-  testFail("1.#INF");
-  testFail("inf");
-  testFail("nan");
-  testFail("NAN");
-  testFail("1.#IND");
-  testFail("indef");
-  testFail("qnan");
-  testFail("snan");
-}
diff --git a/tests/corelib_2/duration_big_num_test.dart b/tests/corelib_2/duration_big_num_test.dart
deleted file mode 100644
index e4bb7a614e7..00000000000
--- a/tests/corelib_2/duration_big_num_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:math';
-
-main() {
-  Duration d, d1;
-
-  d1 = new Duration(microseconds: pow(2, 53));
-  d = d1 * 2;
-  Expect.equals(pow(2, 54), d.inMicroseconds);
-  d = d1 * 1.5;
-  Expect.equals(pow(2, 53).toDouble() * 1.5, d.inMicroseconds);
-  Expect.isTrue(d.inMicroseconds is int);
-
-  // Test that we lose precision when multiplying with a double.
-  d = new Duration(microseconds: pow(2, 53) + 1) * 1.0;
-  Expect.equals(0, d.inMicroseconds % 2);
-}
diff --git a/tests/corelib_2/duration_double_multiplication_test.dart b/tests/corelib_2/duration_double_multiplication_test.dart
deleted file mode 100644
index fc631ff0362..00000000000
--- a/tests/corelib_2/duration_double_multiplication_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Duration d, d1;
-
-  d1 = new Duration(milliseconds: 1);
-  d = d1 * 0.005;
-  Expect.equals(1000 * 0.005, d.inMicroseconds);
-  d = d1 * 0.0;
-  Expect.equals(0, d.inMicroseconds);
-  d = d1 * -0.005;
-  Expect.equals(1000 * -0.005, d.inMicroseconds);
-  d = d1 * 0.0015;
-  Expect.equals((1000 * 0.0015).round(), d.inMicroseconds);
-}
diff --git a/tests/corelib_2/duration_test.dart b/tests/corelib_2/duration_test.dart
deleted file mode 100644
index 9cab8e6b2b7..00000000000
--- a/tests/corelib_2/duration_test.dart
+++ /dev/null
@@ -1,335 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Duration d;
-  d = new Duration(days: 1);
-  Expect.equals(86400000000, d.inMicroseconds);
-  Expect.equals(86400000, d.inMilliseconds);
-  Expect.equals(86400, d.inSeconds);
-  Expect.equals(1440, d.inMinutes);
-  Expect.equals(24, d.inHours);
-  Expect.equals(1, d.inDays);
-  d = const Duration(hours: 1);
-  Expect.equals(3600000000, d.inMicroseconds);
-  Expect.equals(3600000, d.inMilliseconds);
-  Expect.equals(3600, d.inSeconds);
-  Expect.equals(60, d.inMinutes);
-  Expect.equals(1, d.inHours);
-  Expect.equals(0, d.inDays);
-  d = new Duration(minutes: 1);
-  Expect.equals(60000000, d.inMicroseconds);
-  Expect.equals(60000, d.inMilliseconds);
-  Expect.equals(60, d.inSeconds);
-  Expect.equals(1, d.inMinutes);
-  Expect.equals(0, d.inHours);
-  Expect.equals(0, d.inDays);
-  d = const Duration(seconds: 1);
-  Expect.equals(1000000, d.inMicroseconds);
-  Expect.equals(1000, d.inMilliseconds);
-  Expect.equals(1, d.inSeconds);
-  Expect.equals(0, d.inMinutes);
-  Expect.equals(0, d.inHours);
-  Expect.equals(0, d.inDays);
-  d = new Duration(milliseconds: 1);
-  Expect.equals(1000, d.inMicroseconds);
-  Expect.equals(1, d.inMilliseconds);
-  Expect.equals(0, d.inSeconds);
-  Expect.equals(0, d.inMinutes);
-  Expect.equals(0, d.inHours);
-  Expect.equals(0, d.inDays);
-  d = new Duration(microseconds: 1);
-  Expect.equals(1, d.inMicroseconds);
-  Expect.equals(0, d.inMilliseconds);
-  Expect.equals(0, d.inSeconds);
-  Expect.equals(0, d.inMinutes);
-  Expect.equals(0, d.inHours);
-  Expect.equals(0, d.inDays);
-
-  d = const Duration(milliseconds: 1, microseconds: 999);
-  Expect.equals(1999, d.inMicroseconds);
-  Expect.equals(1, d.inMilliseconds);
-  d = const Duration(seconds: 1, milliseconds: 999);
-  Expect.equals(1999, d.inMilliseconds);
-  Expect.equals(1, d.inSeconds);
-  d = new Duration(minutes: 1, seconds: 59);
-  Expect.equals(119, d.inSeconds);
-  Expect.equals(1, d.inMinutes);
-  d = const Duration(hours: 1, minutes: 59);
-  Expect.equals(119, d.inMinutes);
-  Expect.equals(1, d.inHours);
-  d = new Duration(days: 1, hours: 23);
-  Expect.equals(47, d.inHours);
-  Expect.equals(1, d.inDays);
-  d = const Duration(
-      days: 0,
-      hours: 23,
-      minutes: 59,
-      seconds: 59,
-      milliseconds: 999,
-      microseconds: 999);
-  Expect.equals(0, d.inDays);
-
-  d = new Duration(days: -1);
-  Expect.equals(-86400000000, d.inMicroseconds);
-  Expect.equals(-86400000, d.inMilliseconds);
-  Expect.equals(-86400, d.inSeconds);
-  Expect.equals(-1440, d.inMinutes);
-  Expect.equals(-24, d.inHours);
-  Expect.equals(-1, d.inDays);
-  d = const Duration(hours: -1);
-  Expect.equals(-3600000000, d.inMicroseconds);
-  Expect.equals(-3600000, d.inMilliseconds);
-  Expect.equals(-3600, d.inSeconds);
-  Expect.equals(-60, d.inMinutes);
-  Expect.equals(-1, d.inHours);
-  Expect.equals(0, d.inDays);
-  d = new Duration(minutes: -1);
-  Expect.equals(-60000000, d.inMicroseconds);
-  Expect.equals(-60000, d.inMilliseconds);
-  Expect.equals(-60, d.inSeconds);
-  Expect.equals(-1, d.inMinutes);
-  Expect.equals(0, d.inHours);
-  Expect.equals(0, d.inDays);
-  d = const Duration(seconds: -1);
-  Expect.equals(-1000000, d.inMicroseconds);
-  Expect.equals(-1000, d.inMilliseconds);
-  Expect.equals(-1, d.inSeconds);
-  Expect.equals(0, d.inMinutes);
-  Expect.equals(0, d.inHours);
-  Expect.equals(0, d.inDays);
-  d = new Duration(milliseconds: -1);
-  Expect.equals(-1000, d.inMicroseconds);
-  Expect.equals(-1, d.inMilliseconds);
-  Expect.equals(0, d.inSeconds);
-  Expect.equals(0, d.inMinutes);
-  Expect.equals(0, d.inHours);
-  Expect.equals(0, d.inDays);
-  d = new Duration(microseconds: -1);
-  Expect.equals(-1, d.inMicroseconds);
-  Expect.equals(0, d.inMilliseconds);
-  Expect.equals(0, d.inSeconds);
-  Expect.equals(0, d.inMinutes);
-  Expect.equals(0, d.inHours);
-  Expect.equals(0, d.inDays);
-
-  d = const Duration(days: 1, hours: -24);
-  Expect.equals(0, d.inMicroseconds);
-  d = new Duration(hours: 1, minutes: -60);
-  Expect.equals(0, d.inMicroseconds);
-  d = const Duration(minutes: 1, seconds: -60);
-  Expect.equals(0, d.inMicroseconds);
-  d = new Duration(seconds: 1, milliseconds: -1000);
-  Expect.equals(0, d.inMicroseconds);
-  d = new Duration(milliseconds: 1, microseconds: -1000);
-  Expect.equals(0, d.inMicroseconds);
-
-  d = const Duration(hours: 25);
-  Expect.equals(1, d.inDays);
-  Expect.equals(25, d.inHours);
-  Expect.equals(1500, d.inMinutes);
-  Expect.equals(90000, d.inSeconds);
-  Expect.equals(90000000, d.inMilliseconds);
-  Expect.equals(90000000000, d.inMicroseconds);
-  d = new Duration(minutes: 61);
-  Expect.equals(0, d.inDays);
-  Expect.equals(1, d.inHours);
-  Expect.equals(61, d.inMinutes);
-  Expect.equals(3660, d.inSeconds);
-  Expect.equals(3660000, d.inMilliseconds);
-  Expect.equals(3660000000, d.inMicroseconds);
-  d = const Duration(seconds: 61);
-  Expect.equals(0, d.inDays);
-  Expect.equals(0, d.inHours);
-  Expect.equals(1, d.inMinutes);
-  Expect.equals(61, d.inSeconds);
-  Expect.equals(61000, d.inMilliseconds);
-  Expect.equals(61000000, d.inMicroseconds);
-  d = new Duration(milliseconds: 1001);
-  Expect.equals(0, d.inDays);
-  Expect.equals(0, d.inHours);
-  Expect.equals(0, d.inMinutes);
-  Expect.equals(1, d.inSeconds);
-  Expect.equals(1001, d.inMilliseconds);
-  Expect.equals(1001000, d.inMicroseconds);
-  d = new Duration(microseconds: 1001);
-  Expect.equals(0, d.inDays);
-  Expect.equals(0, d.inHours);
-  Expect.equals(0, d.inMinutes);
-  Expect.equals(0, d.inSeconds);
-  Expect.equals(1, d.inMilliseconds);
-  Expect.equals(1001, d.inMicroseconds);
-
-  var d1 = const Duration(milliseconds: 1000);
-  var d2 = const Duration(seconds: 1);
-  Expect.identical(d1, d2);
-
-  d1 = const Duration(microseconds: 1000);
-  d2 = const Duration(milliseconds: 1);
-  Expect.identical(d1, d2);
-
-  d1 = new Duration(hours: 1);
-  d2 = new Duration(hours: -1);
-  d = d1 + d2;
-  Expect.equals(0, d.inMicroseconds);
-  d = d1 - d2;
-  Expect.equals(3600000000 * 2, d.inMicroseconds);
-
-  d2 = new Duration(hours: 1);
-  d = d1 + d2;
-  Expect.equals(3600000000 * 2, d.inMicroseconds);
-  d = d1 - d2;
-  Expect.equals(0, d.inMicroseconds);
-
-  d = d1 * 2;
-  Expect.equals(3600000000 * 2, d.inMicroseconds);
-  d = d1 * -1;
-  Expect.equals(-3600000000, d.inMicroseconds);
-  d = d1 * 0;
-  Expect.equals(0, d.inMicroseconds);
-
-  d = d1 ~/ 2;
-  Expect.equals(1800000000, d.inMicroseconds);
-  d = d1 ~/ 3600000001;
-  Expect.equals(0, d.inMicroseconds);
-  d = d1 ~/ -3600000001;
-  Expect.equals(0, d.inMicroseconds);
-  d = d1 ~/ 3599999999;
-  Expect.equals(1, d.inMicroseconds);
-  d = d1 ~/ -3599999999;
-  Expect.equals(-1, d.inMicroseconds);
-  d = d1 ~/ -1;
-  Expect.equals(-3600000000, d.inMicroseconds);
-  d = d1 * 0;
-  Expect.equals(0, d.inMicroseconds);
-  Expect.throws(() => d1 ~/ 0, (e) => e is UnsupportedError);
-
-  d = new Duration(microseconds: 0);
-  Expect.isTrue(d < new Duration(microseconds: 1));
-  Expect.isTrue(d <= new Duration(microseconds: 1));
-  Expect.isTrue(d <= d);
-  Expect.isTrue(d > new Duration(microseconds: -1));
-  Expect.isTrue(d >= new Duration(microseconds: -1));
-  Expect.isTrue(d >= d);
-
-  d = const Duration(
-      days: 1,
-      hours: 3,
-      minutes: 17,
-      seconds: 42,
-      milliseconds: 823,
-      microseconds: 127);
-  Expect.equals("27:17:42.823127", d.toString());
-
-  d = const Duration(hours: 1999, minutes: 17, seconds: 42);
-  Expect.equals("1999:17:42.000000", d.toString());
-
-  d = const Duration(
-      days: -1,
-      hours: -3,
-      minutes: -17,
-      seconds: -42,
-      milliseconds: -823,
-      microseconds: -127);
-  Expect.equals("-27:17:42.823127", d.toString());
-
-  d = const Duration(hours: -1999, minutes: -17, seconds: -42);
-  Expect.equals("-1999:17:42.000000", d.toString());
-
-  // Edge conditions for toString of microseconds.
-  // Regression test for http://dartbug.com/15678
-
-  d = const Duration(microseconds: 1);
-  Expect.equals("0:00:00.000001", d.toString());
-
-  d = const Duration(microseconds: 9);
-  Expect.equals("0:00:00.000009", d.toString());
-
-  d = const Duration(microseconds: 10);
-  Expect.equals("0:00:00.000010", d.toString());
-
-  d = const Duration(microseconds: 99);
-  Expect.equals("0:00:00.000099", d.toString());
-
-  d = const Duration(microseconds: 100);
-  Expect.equals("0:00:00.000100", d.toString());
-
-  d = const Duration(microseconds: 999);
-  Expect.equals("0:00:00.000999", d.toString());
-
-  d = const Duration(microseconds: 1000);
-  Expect.equals("0:00:00.001000", d.toString());
-
-  d = const Duration(microseconds: 9999);
-  Expect.equals("0:00:00.009999", d.toString());
-
-  d = const Duration(microseconds: 10000);
-  Expect.equals("0:00:00.010000", d.toString());
-
-  d = const Duration(microseconds: 99999);
-  Expect.equals("0:00:00.099999", d.toString());
-
-  d = const Duration(microseconds: 100000);
-  Expect.equals("0:00:00.100000", d.toString());
-
-  d = const Duration(microseconds: 999999);
-  Expect.equals("0:00:00.999999", d.toString());
-
-  d = const Duration(microseconds: 1000000);
-  Expect.equals("0:00:01.000000", d.toString());
-
-  // Regression test: Infinite loop prior to fix.
-  d = const Duration(microseconds: -0x8000000000000000);
-  Expect.equals("-2562047788:00:54.775808", d.toString());
-
-  d = const Duration(
-      hours: -2562047788, minutes: 0, seconds: -54, microseconds: -775808);
-  Expect.equals(-0x8000000000000000, d.inMicroseconds);
-
-  d1 = const Duration(hours: 1);
-  d2 = const Duration(hours: -1);
-  Expect.isFalse(d1.isNegative);
-  Expect.isTrue(d2.isNegative);
-  Expect.equals(d1, d1.abs());
-  Expect.equals(d1, d2.abs());
-
-  Expect.equals(d2, -d1);
-  Expect.equals(d1, -d2);
-
-  // Regression test for http://dartbug.com/48841
-  d = const Duration(minutes: -1);
-  Expect.equals("-0:01:00.000000", d.toString());
-  d = const Duration(seconds: -1);
-  Expect.equals("-0:00:01.000000", d.toString());
-  d = const Duration(milliseconds: -1);
-  Expect.equals("-0:00:00.001000", d.toString());
-  d = const Duration(microseconds: -1);
-  Expect.equals("-0:00:00.000001", d.toString());
-  d = const Duration(microseconds: -9223372036854775808); // Min 64-bit int.
-  // Not checking precise values, because they will be off on the web.
-  Expect.equals("-2562047788:00:54.775808", d.toString());
-  Expect.isTrue(d.toString().startsWith("-"));
-  Expect.isFalse(d.toString().startsWith("--"));
-  d = const Duration(minutes: -0); // is -0.0 on web.
-  Expect.equals("0:00:00.000000", d.toString());
-
-  // Regression test for https://github.com/dart-lang/sdk/issues/51584
-  // (Didn't fix it all in 48841.)
-  d = const Duration(hours: -1);
-  Expect.equals("-1:00:00.000000", d.toString());
-
-  // Adding -0.0's gives -0.0 again.
-  d = const Duration(
-      days: -0,
-      hours: -0,
-      minutes: -0,
-      seconds: -0,
-      milliseconds: -0,
-      microseconds: -0);
-  Expect.equals("0:00:00.000000", d.toString());
-}
diff --git a/tests/corelib_2/dynamic_nosuchmethod_test.dart b/tests/corelib_2/dynamic_nosuchmethod_test.dart
deleted file mode 100644
index 78ba5bc5e53..00000000000
--- a/tests/corelib_2/dynamic_nosuchmethod_test.dart
+++ /dev/null
@@ -1,91 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--lazy-dispatchers
-// VMOptions=--no-lazy-dispatchers
-
-import "package:expect/expect.dart";
-
-// Test that noSuchMethod calls behave as expected for dynamic object invocations.
-class BaseClass {
-  final dynamic finalField = "final!";
-
-  baz() => "baz!!";
-  get bla => (() => "bla!!");
-}
-
-class ReturnInvocationName extends BaseClass {
-  var _bar;
-
-  ReturnInvocationName(this._bar);
-
-  noSuchMethod(Invocation invocation) {
-    var name = invocation.memberName.toString();
-    var match = new RegExp(r'Symbol\("([^"]+)"\)').matchAsPrefix(name);
-    return match != null ? match.group(1) : name;
-  }
-
-  bar() {
-    return _bar;
-  }
-}
-
-class Foo {}
-
-main() {
-  dynamic x = new ReturnInvocationName(42);
-  Expect.equals('final!', x.finalField);
-  Expect.equals('foo', x.finalField = "foo", 'should call noSuchMethod');
-  Expect.equals('final!', x.finalField, 'field was not set');
-
-  Expect.equals('_prototype', x._prototype);
-  Expect.equals('_prototype', x._prototype());
-
-  Expect.equals('prototype', x.prototype);
-  Expect.equals('prototype', x.prototype());
-
-  Expect.equals('constructor', x.constructor);
-  Expect.equals('constructor', x.constructor());
-
-  Expect.equals('__proto__', x.__proto__);
-  Expect.equals('__proto__', x.__proto__);
-
-  Expect.equals(42, x.bar());
-  Expect.equals(42, (x.bar)());
-
-  Expect.equals('unary-', -x);
-  Expect.equals('+', x + 42);
-  Expect.equals('[]', x[4]);
-
-  dynamic b = new BaseClass();
-  Expect.equals('final!', b.finalField);
-  Expect.throwsNoSuchMethodError(() => b.finalField = "foo");
-  Expect.equals('final!', b.finalField, 'field was not set');
-
-  // Verify that noSuchMethod errors are triggered even when the JS object
-  // happens to have a matching member name.
-  dynamic f = new Foo();
-  Expect.throwsNoSuchMethodError(() => f.prototype);
-  Expect.throwsNoSuchMethodError(() => f.prototype());
-  Expect.throwsNoSuchMethodError(() => f.prototype = 42);
-
-  Expect.throwsNoSuchMethodError(() => f.constructor);
-  Expect.throwsNoSuchMethodError(() => f.constructor());
-  Expect.throwsNoSuchMethodError(() => f.constructor = 42);
-
-  Expect.throwsNoSuchMethodError(() => f.__proto__);
-
-  // These are valid JS properties but not Dart methods.
-  Expect.throwsNoSuchMethodError(() => f.toLocaleString);
-
-  Expect.throwsNoSuchMethodError(() => f.hasOwnProperty);
-
-  f = (int x) {};
-  // Calls with the wrong number of arguments should be NoSuchMethodErrors.
-  Expect.throwsNoSuchMethodError(() => f());
-  Expect.throwsNoSuchMethodError(() => f('hi', '!'));
-  Expect.throwsNoSuchMethodError(() => f(x: 42));
-}
diff --git a/tests/corelib_2/error_stack_trace1_test.dart b/tests/corelib_2/error_stack_trace1_test.dart
deleted file mode 100644
index 792a386ff26..00000000000
--- a/tests/corelib_2/error_stack_trace1_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  static Aa() => Ab();
-  static Ab() => Ac();
-  static Ac() => throw "abc";
-}
-
-class B {
-  static Ba() => Bb();
-  static Bb() => Bc();
-  static Bc() {
-    try {
-      A.Aa();
-    } catch (e) {
-      // This should produce a NoSuchMethodError.
-      var trace = e.stackTrace;
-    }
-  }
-}
-
-main() {
-  bool hasThrown = false;
-  try {
-    B.Ba();
-  } catch (e, stackTrace) {
-    hasThrown = true;
-    var trace = stackTrace.toString();
-    print(trace);
-    Expect.isTrue(trace.contains("Bc"));
-    Expect.isTrue(trace.contains("Bb"));
-    Expect.isTrue(trace.contains("Ba"));
-    Expect.isTrue(trace.contains("main"));
-  }
-  Expect.isTrue(hasThrown);
-}
diff --git a/tests/corelib_2/error_stack_trace2_test.dart b/tests/corelib_2/error_stack_trace2_test.dart
deleted file mode 100644
index 26aacbfd12a..00000000000
--- a/tests/corelib_2/error_stack_trace2_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  get foo => cyclicStatic;
-}
-
-var a = new A();
-dynamic cyclicStatic = (() => a.foo + 1)();
-
-cyclicInitialization() {
-  return cyclicStatic;
-}
-
-main() {
-  bool hasThrown = false;
-  try {
-    cyclicStatic + 1;
-  } catch (e2) {
-    var e = e2;
-    hasThrown = true;
-    Expect.isTrue(
-        e.stackTrace is StackTrace, "$e doesn't have a non-null stack trace");
-  }
-  Expect.isTrue(hasThrown);
-}
diff --git a/tests/corelib_2/error_stack_trace_test.dart b/tests/corelib_2/error_stack_trace_test.dart
deleted file mode 100644
index 3cd163b9043..00000000000
--- a/tests/corelib_2/error_stack_trace_test.dart
+++ /dev/null
@@ -1,70 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void argument() {
-  throw new ArgumentError(499);
-}
-
-// Verify that
-void noSuchMethod() {
-  (499 as dynamic).doesNotExist();
-}
-
-void nullThrown() {
-  throw null;
-}
-
-void range() {
-  throw new RangeError.range(0, 1, 2);
-}
-
-abstract class A {
-  foo();
-}
-
-void unsupported() {
-  throw new UnsupportedError("unsupported");
-}
-
-void unimplemented() {
-  throw new UnimplementedError("unimplemented");
-}
-
-void state() {
-  [1, 2].single;
-}
-
-void cast() {
-  dynamic d = 1;
-  d as String;
-}
-
-main() {
-  List<Function> errorFunctions = [
-    argument,
-    noSuchMethod,
-    nullThrown, //# nullThrown: ok
-    range,
-    unsupported,
-    unimplemented,
-    state,
-    cast,
-  ];
-
-  for (var f in errorFunctions) {
-    bool hasThrown = false;
-    try {
-      f();
-    } catch (e) {
-      hasThrown = true;
-      Expect.isTrue(
-          e.stackTrace is StackTrace, "$e doesn't have a non-null stack trace");
-    }
-    Expect.isTrue(hasThrown);
-  }
-}
diff --git a/tests/corelib_2/error_throw_with_stacktrace_test.dart b/tests/corelib_2/error_throw_with_stacktrace_test.dart
deleted file mode 100644
index d6c3b59bb33..00000000000
--- a/tests/corelib_2/error_throw_with_stacktrace_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-// Test of Error.throwWithStackTrace.
-main() {
-  // Ensure `systemStack` is different from any other stack tracek.
-  var systemStack = (() => StackTrace.current)();
-
-  // Test that an error can be thrown with a system stack trace..
-  {
-    var error = ArgumentError("e1");
-    try {
-      Error.throwWithStackTrace(error, systemStack);
-      Expect.fail("Didn't throw: e1.1");
-    } on Error catch (e, s) {
-      Expect.identical(error, e, "e1.2");
-      // No not expect *identical* stack trace objects.
-      Expect.equals("$systemStack", "$s", "e1.3");
-      Expect.isNotNull(error.stackTrace, "e1.4");
-      Expect.equals("$systemStack", "${error.stackTrace}", "e1.5");
-    }
-  }
-
-  // Test that an error can be thrown with a user-created stack trace..
-  {
-    var stringStack = StackTrace.fromString("Nonce");
-    var error = ArgumentError("e2");
-    try {
-      Error.throwWithStackTrace(error, stringStack);
-      Expect.fail("Didn't throw: e2.1");
-    } on Error catch (e, s) {
-      Expect.identical(error, e, "e2.2");
-      // No not expect *identical* stack trace objects.
-      Expect.equals("$stringStack", "$s", "e2.3");
-      Expect.isNotNull(error.stackTrace, "e2.4");
-      Expect.equals("$stringStack", "${error.stackTrace}", "e2.5");
-    }
-  }
-
-  // Test that a non-error object can be thrown too.
-  {
-    var exception = FormatException("e3");
-    try {
-      Error.throwWithStackTrace(exception, systemStack);
-      Expect.fail("Didn't throw: e3.1");
-    } on Exception catch (e, s) {
-      Expect.identical(exception, e, "e3.2");
-      // No not expect *identical* stack trace objects.
-      Expect.equals("$systemStack", "$s", "e3.3");
-    }
-  }
-
-  // Test that an [Error] not extending {Error} can be thrown,
-  // but doesn't (and cannot) set the stack trace.
-  {
-    var error = CustomError("e4");
-    try {
-      Error.throwWithStackTrace(error, systemStack);
-      Expect.fail("Didn't throw: e4.1");
-    } on Error catch (e, s) {
-      Expect.identical(error, e, "e4.2");
-      // No not expect *identical* stack trace objects.
-      Expect.equals("$systemStack", "$s", "e4.3");
-      Expect.isNull(error.stackTrace, "e4.4");
-    }
-  }
-
-  // Test that an already set stack trace isn't changed.
-  {
-    var error = ArgumentError("e5");
-    StackTrace originalStack;
-    try {
-      throw error;
-    } on Error catch (e) {
-      originalStack = e.stackTrace;
-    }
-    Expect.isNotNull(originalStack);
-    Expect.notIdentical(originalStack, systemStack);
-    Expect.notEquals("$originalStack", "");
-    try {
-      Error.throwWithStackTrace(error, systemStack);
-      Expect.fail("Didn't throw: e5.1");
-    } on Error catch (e, s) {
-      Expect.identical(error, e, "e5.2");
-      // No not expect *identical* stack trace objects.
-      Expect.equals("$systemStack", "$s", "e5.3");
-      // Expect the already-set stack trace to stay.
-      Expect.isNotNull(error.stackTrace, "e5.4");
-      Expect.equals("$originalStack", "${error.stackTrace}", "e5.5");
-    }
-  }
-
-  // Works with OutOfMemoryError.
-  {
-    var error = const OutOfMemoryError();
-    try {
-      Error.throwWithStackTrace(error, systemStack);
-    } on Error catch (e, s) {
-      Expect.identical(error, e);
-      Expect.equals("$systemStack", "$s");
-    }
-  }
-
-  // Works with StackOverflowError.
-  {
-    var error = const StackOverflowError();
-    try {
-      Error.throwWithStackTrace(error, systemStack);
-    } on Error catch (e, s) {
-      Expect.identical(error, e);
-      Expect.equals("$systemStack", "$s");
-    }
-  }
-
-  // Also for live, captured, StackOverflowError.
-  {
-    Object error;
-    int foo() => foo() + 1;
-    try {
-      foo(); // Force stack overflow.
-    } catch (e, s) {
-      error = e;
-    }
-    // Some platforms might use another error than StackOverflowError.
-    // Should work with whichever object gets here.
-    try {
-      Error.throwWithStackTrace(error, systemStack);
-    } catch (e, s) {
-      Expect.identical(error, e);
-      Expect.equals("$systemStack", "$s");
-    }
-  }
-
-  asyncTest(() async {
-    var theFuture = Future.value(null);
-
-    // Test that throwing inside an asynchronous context can be caught.
-    {
-      var error = ArgumentError("e6");
-      try {
-        await theFuture;
-        Error.throwWithStackTrace(error, systemStack);
-        Expect.fail("Didn't throw: e6.1");
-        await theFuture;
-      } on Error catch (e, s) {
-        Expect.identical(error, e, "e6.2");
-        // No not expect *identical* stack trace objects.
-        Expect.equals("$systemStack", "$s", "e6.3");
-        Expect.isNotNull(error.stackTrace, "e6.4");
-        Expect.equals("$systemStack", "${error.stackTrace}", "e6.5");
-      }
-    }
-
-    // Test that throwing in asynchronous context can be locally uncaught.
-    {
-      asyncStart();
-      var error = ArgumentError("e7");
-      var future = () async {
-        await theFuture;
-        Error.throwWithStackTrace(error, systemStack);
-        Expect.fail("Didn't throw: e7.1");
-        await theFuture;
-        return null; // Force future type to Future<dynamic>
-      }();
-      future.catchError((e, s) {
-        Expect.identical(error, e, "e7.2");
-        // No not expect *identical* stack trace objects.
-        Expect.equals("$systemStack", "$s", "e7.3");
-        Expect.isNotNull(error.stackTrace, "e7.4");
-        Expect.equals("$systemStack", "${error.stackTrace}", "e7.5");
-        asyncEnd();
-      });
-    }
-
-    // Test throwing an uncaught async error caught by the Zone.
-    {
-      asyncStart();
-      var error = ArgumentError("e8");
-      await runZonedGuarded(() {
-        // Make an uncaught asynchronous error.
-        (() async {
-          await theFuture;
-          Error.throwWithStackTrace(error, systemStack);
-          Expect.fail("Didn't throw: e8.1");
-          await theFuture;
-        }());
-      }, (e, s) {
-        Expect.identical(error, e, "e8.2");
-        // No not expect *identical* stack trace objects.
-        Expect.equals("$systemStack", "$s", "e8.3");
-        Expect.isNotNull(error.stackTrace, "e8.4");
-        Expect.equals("$systemStack", "${error.stackTrace}", "e8.5");
-        asyncEnd();
-      });
-    }
-  });
-}
-
-class CustomError implements Error {
-  final String message;
-  CustomError(this.message);
-  StackTrace get stackTrace => null;
-  String toString() => "CustomError: $message";
-}
diff --git a/tests/corelib_2/errors_test.dart b/tests/corelib_2/errors_test.dart
deleted file mode 100644
index 8033bead1db..00000000000
--- a/tests/corelib_2/errors_test.dart
+++ /dev/null
@@ -1,107 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that error constructors do what they are documented as doing.
-
-main() {
-  Expect.equals("Invalid argument(s)", new ArgumentError().toString());
-  Expect.equals(
-      "Invalid argument(s): message", new ArgumentError("message").toString());
-  Expect.equals(
-      "Invalid argument: null", new ArgumentError.value(null).toString());
-  Expect.equals("Invalid argument: 42", new ArgumentError.value(42).toString());
-  Expect.equals(
-      "Invalid argument: \"bad\"", new ArgumentError.value("bad").toString());
-  Expect.equals("Invalid argument (foo): null",
-      new ArgumentError.value(null, "foo").toString());
-  Expect.equals("Invalid argument (foo): 42",
-      new ArgumentError.value(42, "foo").toString());
-  Expect.equals("Invalid argument (foo): message: 42",
-      new ArgumentError.value(42, "foo", "message").toString());
-  Expect.equals("Invalid argument: message: 42",
-      new ArgumentError.value(42, null, "message").toString());
-  Expect.equals("Invalid argument(s): Must not be null",
-      new ArgumentError.notNull().toString());
-  Expect.equals("Invalid argument(s) (foo): Must not be null",
-      new ArgumentError.notNull("foo").toString());
-
-  Expect.equals("RangeError", new RangeError(null).toString());
-  Expect.equals("RangeError: message", new RangeError("message").toString());
-  Expect.equals("RangeError: Value not in range: 42",
-      new RangeError.value(42).toString());
-  Expect.equals("RangeError (foo): Value not in range: 42",
-      new RangeError.value(42, "foo").toString());
-  Expect.equals("RangeError (foo): message: 42",
-      new RangeError.value(42, "foo", "message").toString());
-  Expect.equals("RangeError: message: 42",
-      new RangeError.value(42, null, "message").toString());
-
-  Expect.equals("RangeError: Invalid value: Not in inclusive range 2..9: 42",
-      new RangeError.range(42, 2, 9).toString());
-  Expect.equals(
-      "RangeError (foo): Invalid value: Not in inclusive range 2..9: 42",
-      new RangeError.range(42, 2, 9, "foo").toString());
-  Expect.equals("RangeError (foo): message: Not in inclusive range 2..9: 42",
-      new RangeError.range(42, 2, 9, "foo", "message").toString());
-  Expect.equals("RangeError: message: Not in inclusive range 2..9: 42",
-      new RangeError.range(42, 2, 9, null, "message").toString());
-
-  Expect.equals(
-      "RangeError: Index out of range: "
-      "index should be less than 3: 42",
-      new IndexError.withLength(42, 3, indexable: [1, 2, 3]).toString());
-  Expect.equals(
-      "RangeError (foo): Index out of range: "
-      "index should be less than 3: 42",
-      new IndexError.withLength(42, 3, indexable: [1, 2, 3], name: "foo")
-          .toString());
-  Expect.equals(
-      "RangeError (foo): message: "
-      "index should be less than 3: 42",
-      new IndexError.withLength(42, 3,
-              indexable: [1, 2, 3], name: "foo", message: "message")
-          .toString());
-  Expect.equals(
-      "RangeError: message: "
-      "index should be less than 3: 42",
-      new IndexError.withLength(42, 3, indexable: [1, 2, 3], message: "message")
-          .toString());
-  Expect.equals(
-      "RangeError (foo): message: "
-      "index should be less than 2: 42",
-      new IndexError.withLength(42, 2,
-              indexable: [1, 2, 3], name: "foo", message: "message")
-          .toString());
-  Expect.equals(
-      "RangeError: Index out of range: "
-      "index must not be negative: -5",
-      new IndexError.withLength(-5, 3, indexable: [1, 2, 3]).toString());
-
-  Expect.equals(42, ArgumentError.checkNotNull(42));
-  Expect.equals(42, ArgumentError.checkNotNull(42, "name"));
-  Expect.throwsArgumentError(() => ArgumentError.checkNotNull(null));
-
-  Expect.equals(1, RangeError.checkNotNegative(1));
-  Expect.equals(0, RangeError.checkNotNegative(0));
-  Expect.throwsRangeError(() => RangeError.checkNotNegative(-1));
-
-  Expect.equals(1, RangeError.checkValueInInterval(1, 0, 2));
-  Expect.equals(1, RangeError.checkValueInInterval(1, 1, 2));
-  Expect.equals(1, RangeError.checkValueInInterval(1, 0, 1));
-  Expect.equals(1, RangeError.checkValueInInterval(1, 1, 1));
-  Expect.throwsRangeError(() => RangeError.checkValueInInterval(1, 2, 3));
-  Expect.throwsRangeError(() => RangeError.checkValueInInterval(1, 1, 0));
-  Expect.throwsRangeError(() => RangeError.checkValueInInterval(0, 1, 0));
-
-  Expect.equals(1, IndexError.check(1, 2, indexable: [1, 2]));
-  Expect.equals(1, IndexError.check(1, 2));
-  Expect.throwsRangeError(() => IndexError.check(1, 0, indexable: []));
-  Expect.throwsRangeError(() => IndexError.check(1, 1));
-  Expect.throwsRangeError(() => IndexError.check(-1, 3, indexable: [1, 2, 3]));
-  Expect.throwsRangeError(() => IndexError.check(-1, 3));
-}
diff --git a/tests/corelib_2/exception_implementation_test.dart b/tests/corelib_2/exception_implementation_test.dart
deleted file mode 100644
index 18190ca894f..00000000000
--- a/tests/corelib_2/exception_implementation_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library exception_implementation_test;
-
-import "package:expect/expect.dart";
-
-main() {
-  final msg = 1;
-  try {
-    throw new Exception(msg);
-    Expect.fail("Unreachable");
-  } on Exception catch (e) {
-    Expect.isTrue(e is Exception);
-    Expect.equals("Exception: $msg", e.toString());
-  }
-}
diff --git a/tests/corelib_2/expando_test.dart b/tests/corelib_2/expando_test.dart
deleted file mode 100644
index 631bf59d4a6..00000000000
--- a/tests/corelib_2/expando_test.dart
+++ /dev/null
@@ -1,113 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// VMOptions=--enable-ffi=true
-// VMOptions=--enable-ffi=false
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class ExpandoTest {
-  static Expando<int> visits;
-
-  static testMain() {
-    visits = new Expando<int>('visits');
-    var legal = [
-      new Object(),
-      [],
-      [1, 2, 3],
-      const [1, 2, 3],
-      new Map(),
-      {'x': 1, 'y': 2},
-      const {'x': 1, 'y': 2},
-      new Expando(),
-      new Expando('horse')
-    ];
-    for (var object in legal) {
-      testNamedExpando(object);
-      testUnnamedExpando(object);
-    }
-    for (var object in legal) {
-      Expect.equals(2, visits[object], "$object");
-    }
-    testIllegal();
-    testIdentity();
-  }
-
-  static visit(object) {
-    int count = visits[object];
-    count = (count == null) ? 1 : count + 1;
-    visits[object] = count;
-  }
-
-  static testNamedExpando(object) {
-    Expando<int> expando = new Expando<int>('myexpando');
-    Expect.equals('myexpando', expando.name);
-    Expect.isTrue(expando.toString().startsWith('Expando:myexpando'));
-    testExpando(expando, object);
-  }
-
-  static testUnnamedExpando(object) {
-    Expando<int> expando = new Expando<int>();
-    Expect.isNull(expando.name);
-    Expect.isTrue(expando.toString().startsWith('Expando:'));
-    testExpando(expando, object);
-  }
-
-  static testExpando(Expando<int> expando, object) {
-    visit(object);
-
-    Expect.isNull(expando[object]);
-    expando[object] = 42;
-    Expect.equals(42, expando[object]);
-    expando[object] = null;
-    Expect.isNull(expando[object]);
-
-    Expando<int> alternative = new Expando('myexpando');
-    Expect.isNull(alternative[object]);
-    alternative[object] = 87;
-    Expect.isNull(expando[object]);
-    expando[object] = 99;
-    Expect.equals(99, expando[object]);
-    Expect.equals(87, alternative[object]);
-  }
-
-  static testIllegal() {
-    Expando<int> expando = new Expando<int>();
-    Expect.throwsArgumentError(() => expando[null], "null");
-    Expect.throwsArgumentError(() => expando['string'], "'string'");
-    Expect.throwsArgumentError(() => expando[42], "42");
-    Expect.throwsArgumentError(() => expando[42.87], "42.87");
-    Expect.throwsArgumentError(() => expando[true], "true");
-    Expect.throwsArgumentError(() => expando[false], "false");
-  }
-
-  static testIdentity() {
-    // Expando only depends on identity of object.
-    Expando<int> expando = new Expando<int>();
-    var m1 = new Mutable(1);
-    var m2 = new Mutable(7);
-    var m3 = new Mutable(13);
-    expando[m1] = 42;
-    Expect.equals(42, expando[m1]);
-    m1.id = 37;
-    Expect.equals(42, expando[m1]);
-    expando[m2] = 37;
-    expando[m3] = 10;
-    m3.id = 1;
-    Expect.equals(42, expando[m1]);
-    Expect.equals(37, expando[m2]);
-    Expect.equals(10, expando[m3]);
-  }
-}
-
-main() => ExpandoTest.testMain();
-
-class Mutable {
-  int id;
-  Mutable(this.id);
-  int get hashCode => id;
-  bool operator ==(other) => other is Mutable && other.id == id;
-}
diff --git a/tests/corelib_2/expression_test.dart b/tests/corelib_2/expression_test.dart
deleted file mode 100644
index 6d0dbb162ed..00000000000
--- a/tests/corelib_2/expression_test.dart
+++ /dev/null
@@ -1,119 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Tests basic expressions. Does not attempt to validate the details of arithmetic, coercion, and
-// so forth.
-class ExpressionTest {
-  ExpressionTest() {}
-
-  int foo;
-
-  static testMain() {
-    var test = new ExpressionTest();
-    test.testBinary();
-    test.testUnary();
-    test.testShifts();
-    test.testBitwise();
-    test.testIncrement();
-    test.testMangling();
-  }
-
-  testBinary() {
-    int x = 4, y = 2;
-    Expect.equals(6, x + y);
-    Expect.equals(2, x - y);
-    Expect.equals(8, x * y);
-    Expect.equals(2, x / y);
-    Expect.equals(0, x % y);
-  }
-
-  testUnary() {
-    int x = 4, y = 2, z = -5;
-    bool t = true, f = false;
-    Expect.equals(-4, -x);
-    Expect.equals(4, ~z);
-    Expect.equals(f, !t);
-  }
-
-  testShifts() {
-    int x = 4, y = 2;
-    Expect.equals(y, x >> 1);
-    Expect.equals(x, y << 1);
-  }
-
-  testBitwise() {
-    int x = 4, y = 2;
-    Expect.equals(6, (x | y));
-    Expect.equals(0, (x & y));
-    Expect.equals(6, (x ^ y));
-  }
-
-  operator [](int index) {
-    return foo;
-  }
-
-  operator []=(int index, int value) {
-    foo = value;
-  }
-
-  testIncrement() {
-    int x = 4, a = x++;
-    Expect.equals(4, a);
-    Expect.equals(5, x);
-    Expect.equals(6, ++x);
-    Expect.equals(6, x++);
-    Expect.equals(7, x);
-    Expect.equals(6, --x);
-    Expect.equals(6, x--);
-    Expect.equals(5, x);
-
-    this.foo = 0;
-    Expect.equals(0, this.foo++);
-    Expect.equals(1, this.foo);
-    Expect.equals(2, ++this.foo);
-    Expect.equals(2, this.foo);
-    Expect.equals(2, this.foo--);
-    Expect.equals(1, this.foo);
-    Expect.equals(0, --this.foo);
-    Expect.equals(0, this.foo);
-
-    Expect.equals(0, this[0]++);
-    Expect.equals(1, this[0]);
-    Expect.equals(2, ++this[0]);
-    Expect.equals(2, this[0]);
-    Expect.equals(2, this[0]--);
-    Expect.equals(1, this[0]);
-    Expect.equals(0, --this[0]);
-    Expect.equals(0, this[0]);
-
-    int $0 = 42, $1 = 87, $2 = 117;
-    Expect.equals(42, $0++);
-    Expect.equals(43, $0);
-    Expect.equals(44, ++$0);
-    Expect.equals(88, $0 += $0);
-    Expect.equals(87, $1++);
-    Expect.equals(88, $1);
-    Expect.equals(89, ++$1);
-    Expect.equals(178, ($1 += $1));
-    Expect.equals(117, $2++);
-    Expect.equals(118, $2);
-    Expect.equals(119, ++$2);
-  }
-
-  void testMangling() {
-    int $0 = 42, $1 = 87, $2 = 117;
-    this[0] = 0;
-    Expect.equals(42, (this[0] += $0));
-    Expect.equals(129, (this[0] += $1));
-    Expect.equals(246, (this[0] += $2));
-  }
-}
-
-main() {
-  ExpressionTest.testMain();
-}
diff --git a/tests/corelib_2/for_in_test.dart b/tests/corelib_2/for_in_test.dart
deleted file mode 100644
index fdfec44abdd..00000000000
--- a/tests/corelib_2/for_in_test.dart
+++ /dev/null
@@ -1,98 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class ForInTest {
-  static testMain() {
-    testSimple();
-    testBreak();
-    testContinue();
-    testClosure();
-  }
-
-  static Set<int> getSmallSet() {
-    Set<int> set = new Set<int>();
-    set.add(1);
-    set.add(2);
-    set.add(4);
-    return set;
-  }
-
-  static void testSimple() {
-    Set<int> set = getSmallSet();
-    int count = 0;
-    for (final i in set) {
-      count += i;
-    }
-    Expect.equals(7, count);
-
-    count = 0;
-    for (var i in set) {
-      count += i;
-    }
-    Expect.equals(7, count);
-
-    count = 0;
-    for (int i in set) {
-      count += i;
-    }
-    Expect.equals(7, count);
-
-    count = 0;
-    for (final int i in set) {
-      count += i;
-    }
-    Expect.equals(7, count);
-
-    count = 0;
-    int i = 0;
-    Expect.equals(false, set.contains(i)); // Used to test [i] after loop.
-    for (i in set) {
-      count += i;
-    }
-    Expect.equals(7, count);
-    Expect.equals(true, set.contains(i));
-    // The default implementation of [Set] preserves order.
-    Expect.equals(4, i);
-  }
-
-  static void testBreak() {
-    Set<int> set = getSmallSet();
-    int count = 0;
-    for (final i in set) {
-      if (i == 4) break;
-      count += i;
-    }
-    Expect.equals(true, count < 4);
-  }
-
-  static void testContinue() {
-    Set<int> set = getSmallSet();
-    int count = 0;
-    for (final i in set) {
-      if (i < 4) continue;
-      count += i;
-    }
-    Expect.equals(4, count);
-  }
-
-  static void testClosure() {
-    Set<int> set = getSmallSet();
-    List<Function> closures = new List.filled(set.length, null);
-    int index = 0;
-    for (var i in set) {
-      closures[index++] = () => i;
-    }
-
-    Expect.equals(index, set.length);
-    Expect.equals(7, closures[0]() + closures[1]() + closures[2]());
-  }
-}
-
-main() {
-  ForInTest.testMain();
-}
diff --git a/tests/corelib_2/format_exception_test.dart b/tests/corelib_2/format_exception_test.dart
deleted file mode 100644
index 028cddbd770..00000000000
--- a/tests/corelib_2/format_exception_test.dart
+++ /dev/null
@@ -1,110 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library format_exception_test;
-
-import "package:expect/expect.dart";
-
-test(exn, message, source, offset, toString) {
-  Expect.equals(message, exn.message);
-  Expect.equals(source, exn.source);
-  Expect.equals(offset, exn.offset);
-  Expect.equals(toString, exn.toString());
-}
-
-main() {
-  var e;
-  e = new FormatException();
-  test(e, "", null, null, "FormatException");
-  e = new FormatException("");
-  test(e, "", null, null, "FormatException");
-  e = new FormatException(null);
-  test(e, null, null, null, "FormatException");
-
-  e = new FormatException("message");
-  test(e, "message", null, null, "FormatException: message");
-
-  e = new FormatException("message", "source");
-  test(e, "message", "source", null, "FormatException: message\nsource");
-
-  e = new FormatException("message", "source" * 25);
-  test(e, "message", "source" * 25, null,
-      "FormatException: message\n" + "source" * 12 + "sou...");
-  e = new FormatException("message", "source" * 25);
-  test(e, "message", "source" * 25, null,
-      "FormatException: message\n" + "source" * 12 + "sou...");
-  e = new FormatException("message", "s1\nsource\ns2");
-  test(e, "message", "s1\nsource\ns2", null,
-      "FormatException: message\n" + "s1\nsource\ns2");
-
-  var o = new Object();
-  e = new FormatException("message", o, 10);
-  test(e, "message", o, 10, "FormatException: message (at offset 10)");
-
-  e = new FormatException("message", "source", 3);
-  test(e, "message", "source", 3,
-      "FormatException: message (at character 4)\nsource\n   ^\n");
-
-  e = new FormatException("message", "s1\nsource\ns2", 6);
-  test(e, "message", "s1\nsource\ns2", 6,
-      "FormatException: message (at line 2, character 4)\nsource\n   ^\n");
-
-  var longline = "watermelon cantaloupe " * 8 + "watermelon"; // Length > 160.
-  var longsource = (longline + "\n") * 25;
-  var line10 = (longline.length + 1) * 9;
-  e = new FormatException("message", longsource, line10);
-  test(
-      e,
-      "message",
-      longsource,
-      line10,
-      "FormatException: message (at line 10, character 1)\n"
-      "${longline.substring(0, 75)}...\n^\n");
-
-  e = new FormatException("message", longsource, line10 - 1);
-  test(
-      e,
-      "message",
-      longsource,
-      line10 - 1,
-      "FormatException: message (at line 9, "
-      "character ${longline.length + 1})\n"
-      "...${longline.substring(longline.length - 75)}\n"
-      "${' ' * 78}^\n");
-
-  var half = longline.length ~/ 2;
-  e = new FormatException("message", longsource, line10 + half);
-  test(
-      e,
-      "message",
-      longsource,
-      line10 + half,
-      "FormatException: message (at line 10, character ${half + 1})\n"
-      "...${longline.substring(half - 36, half + 36)}...\n"
-      "${' ' * 39}^\n");
-
-  var sourceNL = "\nsource with leading NL";
-  e = new FormatException("message", sourceNL, 2);
-  test(
-      e,
-      "message",
-      sourceNL,
-      2,
-      "FormatException: message (at line 2, character 2)\n"
-      "source with leading NL\n"
-      " ^\n");
-
-  var sourceNL2 = "\n\nsource with leading NL";
-  e = new FormatException("message", sourceNL2, 2);
-  test(
-      e,
-      "message",
-      sourceNL2,
-      2,
-      "FormatException: message (at line 3, character 1)\n"
-      "source with leading NL\n"
-      "^\n");
-}
diff --git a/tests/corelib_2/from_environment_const_type_test.dart b/tests/corelib_2/from_environment_const_type_test.dart
deleted file mode 100644
index 8ba03a731e3..00000000000
--- a/tests/corelib_2/from_environment_const_type_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// SharedOptions=-Da=true -Db=false -Dc=3 -Dd=STRING
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Foo {}
-
-const
-    bool //   //# 01: ok
-    int //    //# 02: compile-time error
-    String // //# 03: compile-time error
-    Foo //    //# 04: compile-time error
-    a = const bool.fromEnvironment('a');
-
-const
-    bool //   //# 05: ok
-    int //    //# 06: compile-time error
-    String // //# 07: compile-time error
-    Foo //    //# 08: compile-time error
-    b = const bool.fromEnvironment('b');
-
-const
-    bool //   //# 09: compile-time error
-    int //    //# 10: ok
-    String // //# 11: compile-time error
-    Foo //    //# 12: compile-time error
-    c = const int.fromEnvironment('c');
-
-const
-    bool //   //# 13: compile-time error
-    int //    //# 14: compile-time error
-    String // //# 15: ok
-    Foo //    //# 16: compile-time error
-    d = const String.fromEnvironment('d');
-
-main() {
-  Expect.equals(a, true);
-  Expect.equals(b, false);
-  Expect.equals(c, 3);
-  Expect.equals(d, 'STRING');
-}
diff --git a/tests/corelib_2/from_environment_const_type_undefined_test.dart b/tests/corelib_2/from_environment_const_type_undefined_test.dart
deleted file mode 100644
index c71e8468555..00000000000
--- a/tests/corelib_2/from_environment_const_type_undefined_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Foo {}
-
-const
-    bool //  //# 01: ok
-    int //   //# 02: compile-time error
-    String //# 03: compile-time error
-    Foo //   //# 04: compile-time error
-    a = const bool.fromEnvironment('a');
-
-const
-    bool //  //# 05: ok
-    int //   //# 06: compile-time error
-    String //# 07: compile-time error
-    Foo //   //# 08: compile-time error
-    b = const bool.fromEnvironment('b');
-
-const
-    bool //  //# 09: compile-time error
-    int //   //# 10: ok
-    String //# 11: compile-time error
-    Foo //   //# 12: compile-time error
-    c = const int.fromEnvironment('c', defaultValue: 0);
-
-const
-    bool //  //# 13: compile-time error
-    int //   //# 14: compile-time error
-    String //# 15: ok
-    Foo //   //# 16: compile-time error
-    d = const String.fromEnvironment('d', defaultValue: '');
-
-main() {
-  Expect.equals(false, a);
-  Expect.equals(false, b);
-  Expect.equals(0, c);
-  Expect.equals('', d);
-}
diff --git a/tests/corelib_2/from_environment_default_value_test.dart b/tests/corelib_2/from_environment_default_value_test.dart
deleted file mode 100644
index 972b24a2a6f..00000000000
--- a/tests/corelib_2/from_environment_default_value_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  // Verify that the default value is as expected.
-  Expect.equals(false, const bool.fromEnvironment('UNDEFINED_NAME'));
-  Expect.equals(0, const int.fromEnvironment('UNDEFINED_NAME'));
-  Expect.equals('', const String.fromEnvironment('UNDEFINED_NAME'));
-
-  // Verify that `defaultValue` is used when passed, not the default values.
-  Expect.equals(
-      true, const bool.fromEnvironment('UNDEFINED_NAME', defaultValue: true));
-  Expect.equals(
-      1, const int.fromEnvironment('UNDEFINED_NAME', defaultValue: 1));
-  Expect.equals('qux',
-      const String.fromEnvironment('UNDEFINED_NAME', defaultValue: 'qux'));
-}
diff --git a/tests/corelib_2/growable_list_test.dart b/tests/corelib_2/growable_list_test.dart
deleted file mode 100644
index 6efb7ef51fb..00000000000
--- a/tests/corelib_2/growable_list_test.dart
+++ /dev/null
@@ -1,166 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Sanity check on the growing behavior of a growable list.
-
-import "package:expect/expect.dart";
-
-void main() {
-  testConstructor();
-  // Concurrent modification checks are only guaranteed in checked mode.
-  testConcurrentModification();
-}
-
-// Iterable generating numbers in range [0..count).
-// May perform callback at some point underways.
-class TestIterableBase extends Iterable<int> {
-  final int length;
-  final int count;
-  // call [callback] if generating callbackIndex.
-  final int callbackIndex;
-  final Function callback;
-  TestIterableBase(this.length, this.count, this.callbackIndex, this.callback);
-  Iterator<int> get iterator => new CallbackIterator(this);
-}
-
-class TestIterable extends TestIterableBase {
-  TestIterable(count, [callbackIndex = -1, callback])
-      : super(-1, count, callbackIndex, callback);
-  int get length => throw "SHOULD NOT BE CALLED";
-}
-
-// Implement Set for private EfficientLengthIterable interface.
-class EfficientTestIterable extends TestIterableBase implements Set<int> {
-  EfficientTestIterable(length, count, [callbackIndex = -1, callback])
-      : super(length, count, callbackIndex, callback);
-  // Avoid warnings because we don't actually implement Set.
-  noSuchMethod(i) => super.noSuchMethod(i);
-  Set<R> cast<R>() => throw "not used by test";
-}
-
-class CallbackIterator implements Iterator<int> {
-  TestIterableBase _iterable;
-  int _current = null;
-  int _nextIndex = 0;
-  CallbackIterator(this._iterable);
-  bool moveNext() {
-    if (_nextIndex >= _iterable.count) {
-      _current = null;
-      return false;
-    }
-    _current = _nextIndex;
-    _nextIndex++;
-    if (_current == _iterable.callbackIndex) {
-      _iterable.callback();
-    }
-    return true;
-  }
-
-  int get current => _current;
-}
-
-void testConstructor() {
-  // Constructor can make both growable and fixed-length lists.
-  testGrowable(list) {
-    Expect.isTrue(list is List<int>);
-    Expect.isFalse(list is List<String>);
-    int length = list.length;
-    list.add(42);
-    Expect.equals(list.length, length + 1);
-  }
-
-  testFixedLength(list) {
-    Expect.isTrue(list is List<int>);
-    int length = list.length;
-    Expect.throws(() {
-      list.add(42);
-    }, null, "adding to fixed-length list");
-    Expect.equals(length, list.length);
-  }
-
-  testThrowsOrTypeError(fn, [name]) {
-    Expect.throws(fn, null, name);
-  }
-
-  testFixedLength(new List<int>.filled(0, null));
-  testFixedLength(new List<int>.filled(5, null));
-  testFixedLength(new List<int>.filled(5, null)); // default growable: false.
-  testGrowable(<int>[]);
-  testGrowable(<int>[]..length = 5);
-  testGrowable(new List<int>.filled(5, null, growable: true));
-  Expect.throwsArgumentError(() => new List<int>.filled(-1, null), "-1");
-  // There must be limits. Fix this test if we ever allow 2^63 elements.
-  Expect.throws(() => new List<int>.filled(0x7ffffffffffff000, null),
-      (e) => e is OutOfMemoryError || e is ArgumentError, "bignum");
-  Expect.throwsArgumentError(() => new List<int>.filled(null, null), "null");
-  testThrowsOrTypeError(
-      () => new List.filled([] as Object, null), // Cast to avoid warning.
-      'list');
-  testThrowsOrTypeError(() => new List.filled([42] as Object, null), "list2");
-}
-
-void testConcurrentModification() {
-  // Without EfficientLengthIterable interface
-  {
-    // Change length of list after 200 additions.
-    var l = [];
-    var ci = new TestIterable(257, 200, () {
-      l.add("X");
-    });
-    Expect.throws(() {
-      l.addAll(ci);
-    }, (e) => e is ConcurrentModificationError, "cm1");
-  }
-
-  {
-    // Change length of list after 200 additions.
-    var l = [];
-    var ci = new TestIterable(257, 200, () {
-      l.length = 0;
-    });
-    Expect.throws(() {
-      l.addAll(ci);
-    }, (e) => e is ConcurrentModificationError, "cm2");
-  }
-
-  // With EfficientLengthIterable interface (uses length).
-  {
-    // Change length of list after 20 additions.
-    var l = [];
-    var ci = new EfficientTestIterable(257, 257, 20, () {
-      l.add("X");
-    });
-    Expect.throws(() {
-      l.addAll(ci);
-    }, (e) => e is ConcurrentModificationError, "cm3");
-  }
-
-  {
-    var l = [];
-    var ci = new EfficientTestIterable(257, 257, 20, () {
-      l.length = 0;
-    });
-    Expect.throws(() {
-      l.addAll(ci);
-    }, (e) => e is ConcurrentModificationError, "cm4");
-  }
-
-  {
-    // Length 500, only 250 elements.
-    var l = [];
-    var ci = new EfficientTestIterable(500, 250);
-    l.addAll(ci);
-    Expect.listEquals(new List.generate(250, (x) => x), l, "cm5");
-  }
-
-  {
-    // Length 250, but 500 elements.
-    var l = [];
-    var ci = new EfficientTestIterable(250, 500);
-    l.addAll(ci);
-    Expect.listEquals(new List.generate(500, (x) => x), l, "cm6");
-  }
-}
diff --git a/tests/corelib_2/has_next_iterator_test.dart b/tests/corelib_2/has_next_iterator_test.dart
deleted file mode 100644
index 553cbbd7750..00000000000
--- a/tests/corelib_2/has_next_iterator_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library hasNextIterator.test;
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-
-main() {
-  var it = new HasNextIterator([].iterator);
-  Expect.isFalse(it.hasNext);
-  Expect.isFalse(it.hasNext);
-  Expect.throwsStateError(() => it.next());
-  Expect.isFalse(it.hasNext);
-
-  it = new HasNextIterator([1].iterator);
-  Expect.isTrue(it.hasNext);
-  Expect.isTrue(it.hasNext);
-  Expect.equals(1, it.next());
-  Expect.isFalse(it.hasNext);
-  Expect.isFalse(it.hasNext);
-  Expect.throwsStateError(() => it.next());
-  Expect.isFalse(it.hasNext);
-
-  it = new HasNextIterator([1, 2].iterator);
-  Expect.isTrue(it.hasNext);
-  Expect.isTrue(it.hasNext);
-  Expect.equals(1, it.next());
-  Expect.isTrue(it.hasNext);
-  Expect.isTrue(it.hasNext);
-  Expect.equals(2, it.next());
-  Expect.isFalse(it.hasNext);
-  Expect.isFalse(it.hasNext);
-  Expect.throwsStateError(() => it.next());
-  Expect.isFalse(it.hasNext);
-}
diff --git a/tests/corelib_2/hash_map2_test.dart b/tests/corelib_2/hash_map2_test.dart
deleted file mode 100644
index 4c00f7df307..00000000000
--- a/tests/corelib_2/hash_map2_test.dart
+++ /dev/null
@@ -1,313 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// VMOptions=
-// VMOptions=--use_internal_hash_map
-
-// @dart = 2.9
-
-// Tests of hash map behavior, with focus in iteration and concurrent
-// modification errors.
-
-library hash_map2_test;
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-
-testMap(Map newMap(), Map newMapFrom(Map map)) {
-  Map gen(int from, int to) {
-    Map map = new LinkedHashMap();
-    for (int i = from; i < to; i++) map[i] = i;
-    return map;
-  }
-
-  bool odd(Object n) => ((n as int) & 1) == 1;
-  bool even(Object n) => ((n as int) & 1) == 0;
-  void addAll(Map toMap, Map fromMap) {
-    fromMap.forEach((k, v) {
-      toMap[k] = v;
-    });
-  }
-
-  {
-    // Test growing to largish capacity.
-    Map map = newMap();
-
-    for (int i = 0; i < 256; i++) {
-      map[i] = i;
-    }
-    addAll(map, gen(256, 512));
-    addAll(map, newMapFrom(gen(512, 1000)));
-    Expect.equals(1000, map.length);
-
-    // Remove half.
-    for (int i = 0; i < 1000; i += 2) map.remove(i);
-    Expect.equals(500, map.length);
-    Expect.isFalse(map.keys.any(even));
-    Expect.isTrue(map.keys.every(odd));
-
-    // Re-add all.
-    addAll(map, gen(0, 1000));
-    Expect.equals(1000, map.length);
-  }
-
-  {
-    // Test having many deleted elements.
-    Map map = newMap();
-    map[0] = 0;
-    for (int i = 0; i < 1000; i++) {
-      map[i + 1] = i + 1;
-      map.remove(i);
-      Expect.equals(1, map.length);
-    }
-  }
-
-  {
-    // Test having many elements with same hashCode
-    Map map = newMap();
-    for (int i = 0; i < 1000; i++) {
-      map[new BadHashCode()] = 0;
-    }
-    Expect.equals(1000, map.length);
-  }
-
-  {
-    // Check concurrent modification
-    Map map = newMap()
-      ..[0] = 0
-      ..[1] = 1;
-
-    {
-      // Test adding before a moveNext.
-      Iterator iter = map.keys.iterator;
-      iter.moveNext();
-      map[1] = 9; // Updating existing key isn't a modification.
-      iter.moveNext();
-      map[2] = 2;
-      Expect.throws(iter.moveNext, (e) => e is Error);
-    }
-
-    {
-      // Test adding after last element.
-      Iterator iter = map.keys.iterator;
-      Expect.equals(3, map.length);
-      iter.moveNext();
-      iter.moveNext();
-      iter.moveNext();
-      map[3] = 3;
-      Expect.throws(iter.moveNext, (e) => e is Error);
-    }
-
-    {
-      // Test removing during iteration.
-      Iterator iter = map.keys.iterator;
-      iter.moveNext();
-      map.remove(1000); // Not a modification if it's not there.
-      iter.moveNext();
-      int n = iter.current;
-      map.remove(n);
-      // Removing doesn't change current.
-      Expect.equals(n, iter.current);
-      Expect.throws(iter.moveNext, (e) => e is Error);
-    }
-
-    {
-      // Test removing after last element.
-      Iterator iter = map.keys.iterator;
-      Expect.equals(3, map.length);
-      iter.moveNext();
-      iter.moveNext();
-      iter.moveNext();
-      int n = iter.current;
-      map.remove(n);
-      // Removing doesn't change current.
-      Expect.equals(n, iter.current);
-      Expect.throws(iter.moveNext, (e) => e is Error);
-    }
-
-    {
-      // Test that updating value of existing key doesn't cause concurrent
-      // modification error.
-      Iterator iter = map.keys.iterator;
-      Expect.equals(2, map.length);
-      iter.moveNext();
-      int n = iter.current;
-      map[n] = n * 2;
-      iter.moveNext();
-      Expect.equals(map[iter.current], iter.current);
-    }
-
-    {
-      // Test that modification during putIfAbsent is not an error.
-      map.putIfAbsent(4, () {
-        map[5] = 5;
-        map[4] = -1;
-        return 4;
-      });
-      Expect.equals(4, map[4]);
-      Expect.equals(5, map[5]);
-    }
-
-    {
-      // Check adding many existing keys isn't considered modification.
-      Map map2 = newMap();
-      for (var key in map.keys) {
-        map2[key] = map[key] + 1;
-      }
-      Iterator iter = map.keys.iterator;
-      addAll(map, map2);
-      // Shouldn't throw.
-      iter.moveNext();
-    }
-  }
-
-  {
-    // Regression test for bug in putIfAbsent where adding an element
-    // that make the table grow, can be lost.
-    Map map = newMap();
-    map.putIfAbsent("S", () => 0);
-    map.putIfAbsent("T", () => 0);
-    map.putIfAbsent("U", () => 0);
-    map.putIfAbsent("C", () => 0);
-    map.putIfAbsent("a", () => 0);
-    map.putIfAbsent("b", () => 0);
-    map.putIfAbsent("n", () => 0);
-    Expect.isTrue(map.containsKey("n"));
-  }
-
-  {
-    // Check that putIfAbsent works just as well as put.
-    Map map = newMap();
-    for (int i = 0; i < 128; i++) {
-      map.putIfAbsent(i, () => i);
-      Expect.isTrue(map.containsKey(i));
-      map.putIfAbsent(i >> 1, () => -1); // Never triggers.
-    }
-    for (int i = 0; i < 128; i++) {
-      Expect.equals(i, map[i]);
-    }
-  }
-
-  {
-    // Check that updating existing elements is not a modification.
-    // This must be the case even if the underlying data structure is
-    // nearly full.
-    for (int i = 1; i < 128; i++) {
-      // Create maps of different sizes, some of which should be
-      // at a limit of the underlying data structure.
-      Map map = newMapFrom(gen(0, i));
-
-      // ForEach-iteration.
-      map.forEach((key, v) {
-        Expect.equals(key, map[key]);
-        map[key] = key + 1;
-        map.remove(1000); // Removing something not there.
-        map.putIfAbsent(key, () => Expect.fail("SHOULD NOT BE ABSENT"));
-        // Doesn't cause ConcurrentModificationError.
-      });
-
-      // for-in iteration.
-      for (int key in map.keys) {
-        Expect.equals(key + 1, map[key]);
-        map[key] = map[key] + 1;
-        map.remove(1000); // Removing something not there.
-        map.putIfAbsent(key, () => Expect.fail("SHOULD NOT BE ABSENT"));
-        // Doesn't cause ConcurrentModificationError.
-      }
-
-      // Raw iterator.
-      Iterator iter = map.keys.iterator;
-      for (int key = 0; key < i; key++) {
-        Expect.equals(key + 2, map[key]);
-        map[key] = key + 3;
-        map.remove(1000); // Removing something not there.
-        map.putIfAbsent(key, () => Expect.fail("SHOULD NOT BE ABSENT"));
-        // Doesn't cause ConcurrentModificationError on the moveNext.
-      }
-      iter.moveNext(); // Should not throw.
-
-      // Remove a lot of elements, which can cause a re-tabulation.
-      for (int key = 1; key < i; key++) {
-        Expect.equals(key + 3, map[key]);
-        map.remove(key);
-      }
-      iter = map.keys.iterator;
-      map[0] = 2;
-      iter.moveNext(); // Should not throw.
-    }
-  }
-
-  {
-    // Check that null can be in the map.
-    Map map = newMap();
-    map[null] = 0;
-    Expect.equals(1, map.length);
-    Expect.isTrue(map.containsKey(null));
-    Expect.isNull(map.keys.first);
-    Expect.isNull(map.keys.last);
-    map[null] = 1;
-    Expect.equals(1, map.length);
-    Expect.isTrue(map.containsKey(null));
-    map.remove(null);
-    Expect.isTrue(map.isEmpty);
-    Expect.isFalse(map.containsKey(null));
-
-    // Created using map.from.
-    map = newMapFrom(new Map()..[null] = 0);
-    Expect.equals(1, map.length);
-    Expect.isTrue(map.containsKey(null));
-    Expect.isNull(map.keys.first);
-    Expect.isNull(map.keys.last);
-    map[null] = 1;
-    Expect.equals(1, map.length);
-    Expect.isTrue(map.containsKey(null));
-    map.remove(null);
-    Expect.isTrue(map.isEmpty);
-    Expect.isFalse(map.containsKey(null));
-
-    Map fromMap = new Map();
-    fromMap[1] = 0;
-    fromMap[2] = 0;
-    fromMap[3] = 0;
-    fromMap[null] = 0;
-    fromMap[4] = 0;
-    fromMap[5] = 0;
-    fromMap[6] = 0;
-    Expect.equals(7, fromMap.length);
-
-    // map that grows with null in it.
-    map = newMapFrom(fromMap);
-    Expect.equals(7, map.length);
-    for (int i = 7; i < 128; i++) {
-      map[i] = 0;
-    }
-    Expect.equals(128, map.length);
-    Expect.isTrue(map.containsKey(null));
-    map[null] = 1;
-    Expect.equals(128, map.length);
-    Expect.isTrue(map.containsKey(null));
-    map.remove(null);
-    Expect.equals(127, map.length);
-    Expect.isFalse(map.containsKey(null));
-  }
-}
-
-void main() {
-  Expect.isTrue(new HashMap<int, String>() is Map<int, String>);
-  Expect.isTrue(new LinkedHashMap<int, String>() is Map<int, String>);
-  Expect.isTrue(new HashMap<String, int>.from({}) is Map<String, int>);
-  Expect.isTrue(new LinkedHashMap<String, int>.from({}) is Map<String, int>);
-  Expect.isTrue(<String, int>{} is Map<String, int>);
-  Expect.isTrue(const <String, int>{} is Map<String, int>);
-
-  testMap(() => new HashMap(), (m) => new HashMap.from(m));
-  testMap(() => new LinkedHashMap(), (m) => new LinkedHashMap.from(m));
-}
-
-class BadHashCode {
-  static int idCounter = 0;
-  final int id;
-  BadHashCode() : id = idCounter++;
-  int get hashCode => 42;
-}
diff --git a/tests/corelib_2/hash_map_test.dart b/tests/corelib_2/hash_map_test.dart
deleted file mode 100644
index 649907d8d03..00000000000
--- a/tests/corelib_2/hash_map_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test program for the HashMap class.
-
-class HashMapTest {
-  static testMain() {
-    var m = new Map();
-    Expect.equals(0, m.length);
-    Expect.equals(true, m.isEmpty);
-    m["one"] = 1;
-    Expect.equals(1, m.length);
-    Expect.equals(false, m.isEmpty);
-    Expect.equals(1, m["one"]);
-  }
-}
-
-main() {
-  HashMapTest.testMain();
-}
diff --git a/tests/corelib_2/hash_set_test.dart b/tests/corelib_2/hash_set_test.dart
deleted file mode 100644
index 0181794526e..00000000000
--- a/tests/corelib_2/hash_set_test.dart
+++ /dev/null
@@ -1,385 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// VMOptions=
-
-// @dart = 2.9
-
-// Tests of hash set behavior, with focus in iteration and concurrent
-// modification errors.
-
-library hash_map2_test;
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-import 'dart:math' as math;
-
-testSet(Set newSet(), Set newSetFrom(Iterable from)) {
-  Set gen(int from, int to) =>
-      new Set.from(new Iterable.generate(to - from, (n) => n + from));
-
-  bool odd(n) => (n & 1) == 1;
-  bool even(n) => (n & 1) == 0;
-
-  {
-    // Test growing to largish capacity.
-    Set set = newSet();
-
-    for (int i = 0; i < 256; i++) {
-      set.add(i);
-    }
-
-    set.addAll(gen(256, 512));
-    set.addAll(newSetFrom(gen(512, 1000)));
-    Expect.equals(1000, set.length);
-
-    // Remove half.
-    for (int i = 0; i < 1000; i += 2) set.remove(i);
-    Expect.equals(500, set.length);
-    Expect.isFalse(set.any(even));
-    Expect.isTrue(set.every(odd));
-
-    // Re-add all.
-    set.addAll(gen(0, 1000));
-    Expect.equals(1000, set.length);
-  }
-
-  {
-    // Test having many deleted elements.
-    Set set = newSet();
-    set.add(0);
-    for (int i = 0; i < 1000; i++) {
-      set.add(i + 1);
-      set.remove(i);
-      Expect.equals(1, set.length);
-    }
-  }
-
-  {
-    // Test having many elements with same hashCode
-    Set set = newSet();
-    for (int i = 0; i < 1000; i++) {
-      set.add(new BadHashCode());
-    }
-    Expect.equals(1000, set.length);
-  }
-
-  {
-    // Check concurrent modification
-    Set set = newSet()
-      ..add(0)
-      ..add(1);
-
-    {
-      // Test adding before a moveNext.
-      Iterator iter = set.iterator;
-      iter.moveNext();
-      set.add(1); // Updating existing key isn't a modification.
-      iter.moveNext();
-      set.add(2);
-      Expect.throws(iter.moveNext, (e) => e is Error);
-    }
-
-    {
-      // Test adding after last element.
-      Iterator iter = set.iterator;
-      Expect.equals(3, set.length);
-      iter.moveNext();
-      iter.moveNext();
-      iter.moveNext();
-      set.add(3);
-      Expect.throws(iter.moveNext, (e) => e is Error);
-    }
-
-    {
-      // Test removing during iteration.
-      Iterator iter = set.iterator;
-      iter.moveNext();
-      set.remove(1000); // Not a modification if it's not there.
-      iter.moveNext();
-      int n = iter.current;
-      set.remove(n);
-      // Removing doesn't change current.
-      Expect.equals(n, iter.current);
-      Expect.throws(iter.moveNext, (e) => e is Error);
-    }
-
-    {
-      // Test removing after last element.
-      Iterator iter = set.iterator;
-      Expect.equals(3, set.length);
-      iter.moveNext();
-      iter.moveNext();
-      iter.moveNext();
-      int n = iter.current;
-      set.remove(n);
-      // Removing doesn't change current.
-      Expect.equals(n, iter.current);
-      Expect.throws(iter.moveNext, (e) => e is Error);
-    }
-
-    {
-      // Test that updating value doesn't cause error.
-      Iterator iter = set.iterator;
-      Expect.equals(2, set.length);
-      iter.moveNext();
-      int n = iter.current;
-      set.add(n);
-      iter.moveNext();
-      Expect.isTrue(set.contains(iter.current));
-    }
-
-    {
-      // Check adding many existing values isn't considered modification.
-      Set set2 = newSet();
-      for (var value in set) {
-        set2.add(value);
-      }
-      Iterator iter = set.iterator;
-      set.addAll(set2);
-      // Shouldn't throw.
-      iter.moveNext();
-    }
-  }
-
-  {
-    // Check that updating existing elements is not a modification.
-    // This must be the case even if the underlying data structure is
-    // nearly full.
-    for (int i = 1; i < 128; i++) {
-      // Create maps of different sizes, some of which should be
-      // at a limit of the underlying data structure.
-      Set set = newSetFrom(gen(0, i));
-      Iterator iter = set.iterator;
-      for (int j = 0; j < i; j++) {
-        set.add(j);
-      }
-      iter.moveNext(); // Should not throw.
-
-      for (int j = 1; j < i; j++) {
-        set.remove(j);
-      }
-      iter = set.iterator;
-      set.add(0);
-      iter.moveNext(); // Should not throw.
-    }
-  }
-
-  {
-    // Check that null can be in the set.
-    Set set = newSet();
-    set.add(null);
-    Expect.equals(1, set.length);
-    Expect.isTrue(set.contains(null));
-    Expect.isNull(set.first);
-    Expect.isNull(set.last);
-    set.add(null);
-    Expect.equals(1, set.length);
-    Expect.isTrue(set.contains(null));
-    set.remove(null);
-    Expect.isTrue(set.isEmpty);
-    Expect.isFalse(set.contains(null));
-
-    // Created using Set.from.
-    set = newSetFrom([null]);
-    Expect.equals(1, set.length);
-    Expect.isTrue(set.contains(null));
-    Expect.isNull(set.first);
-    Expect.isNull(set.last);
-    set.add(null);
-    Expect.equals(1, set.length);
-    Expect.isTrue(set.contains(null));
-    set.remove(null);
-    Expect.isTrue(set.isEmpty);
-    Expect.isFalse(set.contains(null));
-
-    // Set that grows with null in it.
-    set = newSetFrom([1, 2, 3, null, 4, 5, 6]);
-    Expect.equals(7, set.length);
-    for (int i = 7; i < 128; i++) {
-      set.add(i);
-    }
-    Expect.equals(128, set.length);
-    Expect.isTrue(set.contains(null));
-    set.add(null);
-    Expect.equals(128, set.length);
-    Expect.isTrue(set.contains(null));
-    set.remove(null);
-    Expect.equals(127, set.length);
-    Expect.isFalse(set.contains(null));
-  }
-
-  {
-    // Check that addAll and clear works.
-    Set set = newSet();
-    set.addAll([]);
-    Expect.isTrue(set.isEmpty);
-    set.addAll([1, 3, 2]);
-    Expect.equals(3, set.length);
-    Expect.isTrue(set.contains(1));
-    Expect.isTrue(set.contains(3));
-    Expect.isTrue(set.contains(2));
-    Expect.isFalse(set.contains(4));
-    set.clear();
-    Expect.isTrue(set.isEmpty);
-  }
-
-  {
-    // Check that removeWhere and retainWhere work.
-    Set set = newSetFrom([1, 2, 3]);
-    set.removeWhere((each) => each == 2);
-    Expect.equals(2, set.length);
-    Expect.isTrue(set.contains(1));
-    Expect.isFalse(set.contains(2));
-    Expect.isTrue(set.contains(3));
-    set.retainWhere((each) => each == 3);
-    Expect.equals(1, set.length);
-    Expect.isFalse(set.contains(1));
-    Expect.isFalse(set.contains(2));
-    Expect.isTrue(set.contains(3));
-  }
-
-  {
-    // Test lookup
-    Set set = newSet();
-    var m1a = new Mutable(1);
-    var m1b = new Mutable(1);
-    var m2a = new Mutable(2);
-    var m2b = new Mutable(2);
-    Expect.isNull(set.lookup(m1a));
-    Expect.isNull(set.lookup(m1b));
-    set.add(m1a);
-    Expect.identical(m1a, set.lookup(m1a));
-    Expect.identical(m1a, set.lookup(m1b));
-
-    Expect.isNull(set.lookup(m2a));
-    Expect.isNull(set.lookup(m2b));
-    set.add(m2a);
-    Expect.identical(m2a, set.lookup(m2a));
-    Expect.identical(m2a, set.lookup(m2b));
-
-    set.add(m2b); // Adding doesn't change element.
-    Expect.identical(m2a, set.lookup(m2a));
-    Expect.identical(m2a, set.lookup(m2b));
-
-    set.remove(m1a);
-    set.add(m1b);
-    Expect.identical(m1b, set.lookup(m1a));
-    Expect.identical(m1b, set.lookup(m1b));
-
-    set.add(1);
-    Expect.identical(1, set.lookup(1.0));
-    set.add(-0.0);
-    Expect.identical(-0.0, set.lookup(0.0));
-  }
-
-  {
-    // Test special hash codes
-    Set set = newSet();
-    List keys = [];
-    // Powers of two
-    for (int i = 63; i >= 2; --i) {
-      keys.add(new Mutable(math.pow(2, i)));
-    }
-    for (var key in keys) {
-      Expect.isTrue(set.add(key));
-    }
-    for (var key in keys) {
-      Expect.isTrue(set.contains(key));
-    }
-  }
-}
-
-void testIdentitySet(Set create()) {
-  Set set = create();
-  set.add(1);
-  set.add(2);
-  set.add(1); // Integers are identical if equal.
-  Expect.equals(2, set.length);
-  var complex = 4;
-  complex = set.length == 2 ? complex ~/ 4 : 87; // Avoid compile-time constant.
-  Expect.isTrue(set.contains(complex)); // 1 is in set, even if computed.
-  set.clear();
-
-  // All compile time constants are identical to themselves.
-  var constants = [
-    double.infinity,
-    double.nan,
-    -0.0,
-    0.0,
-    42,
-    "",
-    null,
-    false,
-    true,
-    #bif,
-    testIdentitySet
-  ];
-  set.addAll(constants);
-  if (webNumbers) {
-    // 0.0 and -0.0 are identical in JS.
-    Expect.equals(constants.length - 1, set.length);
-    Expect.isTrue(
-        set.containsAll(constants.where((e) => !(e is double && e.isNaN))),
-        "constants: $set");
-  } else {
-    Expect.equals(constants.length, set.length);
-    Expect.isTrue(set.containsAll(constants), "constants: $set");
-  }
-  for (var c in constants) {
-    // identical(double.nan, double.nan) == false in JS.
-    if (webNumbers && c is double && c.isNaN) continue;
-    Expect.isTrue(set.contains(c), "constant: $c");
-  }
-  set.clear();
-
-  var m1 = new Mutable(1);
-  var m2 = new Mutable(2);
-  var m3 = new Mutable(3);
-  var m4 = new Mutable(2); // Equal to m2, but not identical.
-  set.addAll([m1, m2, m3, m4]);
-  Expect.equals(4, set.length);
-  Expect.equals(3, m3.hashCode);
-  m3.id = 1;
-  Expect.equals(1, m3.hashCode);
-  // Changing hashCode doesn't affect lookup.
-  Expect.isTrue(set.contains(m3));
-  Expect.isTrue(set.contains(m1));
-  set.remove(m3);
-  Expect.isFalse(set.contains(m3));
-  Expect.isTrue(set.contains(m1));
-
-  Expect.identical(m1, set.lookup(m1));
-  Expect.identical(null, set.lookup(m3));
-}
-
-void main() {
-  testSet(() => new Set(), (m) => new Set.from(m));
-  testSet(() => new HashSet(), (m) => new HashSet.from(m));
-  testSet(() => new LinkedHashSet(), (m) => new LinkedHashSet.from(m));
-  testIdentitySet(() => new Set.identity());
-  testIdentitySet(() => new HashSet.identity());
-  testIdentitySet(() => new LinkedHashSet.identity());
-  testIdentitySet(() => new HashSet(
-      equals: (x, y) => identical(x, y), hashCode: (x) => identityHashCode(x)));
-  testIdentitySet(() => new LinkedHashSet(
-      equals: (x, y) => identical(x, y), hashCode: (x) => identityHashCode(x)));
-}
-
-class BadHashCode {
-  static int idCounter = 0;
-  final int id;
-  BadHashCode() : id = idCounter++;
-  int get hashCode => 42;
-  // operator == is identity.
-  // Can't make a bad compareTo that isn't invalid.
-  int compareTo(BadHashCode other) => id - other.id;
-}
-
-class Mutable {
-  int id;
-  Mutable(this.id);
-  int get hashCode => id;
-  bool operator ==(other) => other is Mutable && id == other.id;
-}
diff --git a/tests/corelib_2/hash_set_type_check_test.dart b/tests/corelib_2/hash_set_type_check_test.dart
deleted file mode 100644
index 1b394090e67..00000000000
--- a/tests/corelib_2/hash_set_type_check_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests of hash set type checking.
-
-library hash_set_type_check_test;
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-
-// TODO: all this test does now is verify that lookup takes a non-T
-//       should merge this with `hash_test_test`.
-testSet(Set<String> newSet()) {
-  Set<String> s = newSet();
-  Expect.isNull(s.lookup(1));
-}
-
-void main() {
-  testSet(() => new Set<String>());
-  testSet(() => new HashSet<String>());
-  testSet(() => new LinkedHashSet<String>());
-  testSet(() => new Set<String>.identity());
-  testSet(() => new HashSet<String>.identity());
-  testSet(() => new LinkedHashSet<String>.identity());
-  testSet(() => new HashSet<String>(
-      equals: (x, y) => identical(x, y), hashCode: (x) => identityHashCode(x)));
-  testSet(() => new LinkedHashSet<String>(
-      equals: (x, y) => identical(x, y), hashCode: (x) => identityHashCode(x)));
-}
diff --git a/tests/corelib_2/hashcode_boxed_test.dart b/tests/corelib_2/hashcode_boxed_test.dart
deleted file mode 100644
index b4b52c8865f..00000000000
--- a/tests/corelib_2/hashcode_boxed_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-double fib(double n) {
-  return n <= 1.0 ? 1.0 : fib(n - 1) + fib(n - 2);
-}
-
-main() {
-  // Compute the same value in a way that won't be optimized away so the results
-  // are different objects in memory.
-  var a = fib(5.0) + 1.0;
-  var b = fib(4.0) + 4.0;
-
-  Expect.isTrue(identical(a, b));
-  Expect.equals(identityHashCode(a), identityHashCode(b));
-  Expect.equals(a, b);
-  Expect.equals(a.hashCode, b.hashCode);
-}
diff --git a/tests/corelib_2/hashcode_test.dart b/tests/corelib_2/hashcode_test.dart
deleted file mode 100644
index b818ae13dcc..00000000000
--- a/tests/corelib_2/hashcode_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Override {
-  int hash;
-  int get superHash => super.hashCode;
-  int get hashCode => hash;
-
-  int foo() => hash; //   Just some function that can be closurized.
-
-  bool operator ==(Object other) => other is Override && other.hash == hash;
-}
-
-int bar() => 42; // Some global function.
-
-main() {
-  var o = new Object();
-  var hash = o.hashCode;
-  // Doesn't change.
-  Expect.equals(hash, o.hashCode);
-  Expect.equals(hash, identityHashCode(o));
-
-  var c = new Override();
-  int identityHash = c.superHash;
-  hash = (identityHash == 42) ? 37 : 42;
-  c.hash = hash;
-  Expect.equals(hash, c.hashCode);
-  Expect.equals(identityHash, identityHashCode(c));
-
-  // These classes don't override hashCode.
-  var samples = [0, 0x10000000, 1.5, -0, null, true, false, const Object()];
-  for (var v in samples) {
-    print(v);
-    Expect.equals(v.hashCode, identityHashCode(v));
-  }
-  // These do, or might do, but we can still use hashCodeOf and get the same
-  // result each time.
-  samples = ["string", "", (x) => 42, c.foo, bar];
-  for (var v in samples) {
-    print(v);
-    Expect.equals(v.hashCode, v.hashCode);
-    Expect.equals(identityHashCode(v), identityHashCode(v));
-  }
-}
diff --git a/tests/corelib_2/hidden_library2_test.dart b/tests/corelib_2/hidden_library2_test.dart
deleted file mode 100644
index 68770c7d291..00000000000
--- a/tests/corelib_2/hidden_library2_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that the internal hidden library doesn't make problems with taking
-// stack-traces.
-
-main() {
-  print(['x'].where((_) {
-    // We actually don't really care for the successful case. We just want to
-    // make sure that the test doesn't crash when it is negative.
-    throw 'fisk'; // //# 01: runtime error
-    return true;
-  }).toList());
-}
diff --git a/tests/corelib_2/int_ceil_test.dart b/tests/corelib_2/int_ceil_test.dart
deleted file mode 100644
index b42d2809d6a..00000000000
--- a/tests/corelib_2/int_ceil_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  const int big = 0x123456789AB0000 + 0xCDEF; // Slightly rounded on web.
-
-  Expect.equals(0, 0.ceil());
-  Expect.equals(1, 1.ceil());
-  Expect.equals(0x1234, 0x1234.ceil());
-  Expect.equals(0x12345678, 0x12345678.ceil());
-  Expect.equals(0x123456789AB, 0x123456789AB.ceil());
-  Expect.equals(big, big.ceil());
-  Expect.equals(-1, (-1).ceil());
-  Expect.equals(-0x1234, (-0x1234).ceil());
-  Expect.equals(-0x12345678, (-0x12345678).ceil());
-  Expect.equals(-0x123456789AB, (-0x123456789AB).ceil());
-  Expect.equals(-big, (-big).ceil());
-
-  Expect.isTrue(0.ceil() is int);
-  Expect.isTrue(1.ceil() is int);
-  Expect.isTrue(0x1234.ceil() is int);
-  Expect.isTrue(0x12345678.ceil() is int);
-  Expect.isTrue(0x123456789AB.ceil() is int);
-  Expect.isTrue(big.ceil() is int);
-  Expect.isTrue((-1).ceil() is int);
-  Expect.isTrue((-0x1234).ceil() is int);
-  Expect.isTrue((-0x12345678).ceil() is int);
-  Expect.isTrue((-0x123456789AB).ceil() is int);
-  Expect.isTrue((-big).ceil() is int);
-}
diff --git a/tests/corelib_2/int_ceil_to_double_test.dart b/tests/corelib_2/int_ceil_to_double_test.dart
deleted file mode 100644
index 1c189b6ac53..00000000000
--- a/tests/corelib_2/int_ceil_to_double_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  const int big = 0x123456789AB0000 + 0xCDEF; // Slightly rounded on web.
-
-  Expect.equals(0.0, 0.ceilToDouble());
-  Expect.equals(1.0, 1.ceilToDouble());
-  Expect.equals(0x1234, 0x1234.ceilToDouble());
-  Expect.equals(0x12345678, 0x12345678.ceilToDouble());
-  Expect.equals(0x123456789AB, 0x123456789AB.ceilToDouble());
-  Expect.equals(81985529216486900.0, big.ceilToDouble());
-  Expect.equals(-1.0, (-1).ceilToDouble());
-  Expect.equals(-0x1234, (-0x1234).ceilToDouble());
-  Expect.equals(-0x12345678, (-0x12345678).ceilToDouble());
-  Expect.equals(-0x123456789AB, (-0x123456789AB).ceilToDouble());
-  Expect.equals(-81985529216486900.0, (-big).ceilToDouble());
-
-  Expect.isTrue(0.ceilToDouble() is double);
-  Expect.isTrue(1.ceilToDouble() is double);
-  Expect.isTrue(0x1234.ceilToDouble() is double);
-  Expect.isTrue(0x12345678.ceilToDouble() is double);
-  Expect.isTrue(0x123456789AB.ceilToDouble() is double);
-  Expect.isTrue(big.ceilToDouble() is double);
-  Expect.isTrue((-1).ceilToDouble() is double);
-  Expect.isTrue((-0x1234).ceilToDouble() is double);
-  Expect.isTrue((-0x12345678).ceilToDouble() is double);
-  Expect.isTrue((-0x123456789AB).ceilToDouble() is double);
-  Expect.isTrue((-big).ceilToDouble() is double);
-}
diff --git a/tests/corelib_2/int_floor_test.dart b/tests/corelib_2/int_floor_test.dart
deleted file mode 100644
index ca00b9cb037..00000000000
--- a/tests/corelib_2/int_floor_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  const int big = 0x123456789AB0000 + 0xCDEF; // Slightly rounded on web.
-
-  Expect.equals(0, 0.floor());
-  Expect.equals(1, 1.floor());
-  Expect.equals(0x1234, 0x1234.floor());
-  Expect.equals(0x12345678, 0x12345678.floor());
-  Expect.equals(0x123456789AB, 0x123456789AB.floor());
-  Expect.equals(big, big.floor());
-  Expect.equals(-1, (-1).floor());
-  Expect.equals(-0x1234, (-0x1234).floor());
-  Expect.equals(-0x12345678, (-0x12345678).floor());
-  Expect.equals(-0x123456789AB, (-0x123456789AB).floor());
-  Expect.equals(-big, (-big).floor());
-
-  Expect.isTrue(0.floor() is int);
-  Expect.isTrue(1.floor() is int);
-  Expect.isTrue(0x1234.floor() is int);
-  Expect.isTrue(0x12345678.floor() is int);
-  Expect.isTrue(0x123456789AB.floor() is int);
-  Expect.isTrue(big.floor() is int);
-  Expect.isTrue((-1).floor() is int);
-  Expect.isTrue((-0x1234).floor() is int);
-  Expect.isTrue((-0x12345678).floor() is int);
-  Expect.isTrue((-0x123456789AB).floor() is int);
-  Expect.isTrue((-big).floor() is int);
-}
diff --git a/tests/corelib_2/int_floor_to_double_test.dart b/tests/corelib_2/int_floor_to_double_test.dart
deleted file mode 100644
index 27f797a3008..00000000000
--- a/tests/corelib_2/int_floor_to_double_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  const int big = 0x123456789AB0000 + 0xCDEF; // Slightly rounded on web.
-
-  Expect.equals(0.0, 0.floorToDouble());
-  Expect.equals(1.0, 1.floorToDouble());
-  Expect.equals(0x1234, 0x1234.floorToDouble());
-  Expect.equals(0x12345678, 0x12345678.floorToDouble());
-  Expect.equals(0x123456789AB, 0x123456789AB.floorToDouble());
-  Expect.equals(81985529216486900.0, big.floorToDouble());
-  Expect.equals(-1.0, (-1).floorToDouble());
-  Expect.equals(-0x1234, (-0x1234).floorToDouble());
-  Expect.equals(-0x12345678, (-0x12345678).floorToDouble());
-  Expect.equals(-0x123456789AB, (-0x123456789AB).floorToDouble());
-  Expect.equals(-81985529216486900.0, (-big).floorToDouble());
-
-  Expect.isTrue(0.floorToDouble() is double);
-  Expect.isTrue(1.floorToDouble() is double);
-  Expect.isTrue(0x1234.floorToDouble() is double);
-  Expect.isTrue(0x12345678.floorToDouble() is double);
-  Expect.isTrue(0x123456789AB.floorToDouble() is double);
-  Expect.isTrue(big.floorToDouble() is double);
-  Expect.isTrue((-1).floorToDouble() is double);
-  Expect.isTrue((-0x1234).floorToDouble() is double);
-  Expect.isTrue((-0x12345678).floorToDouble() is double);
-  Expect.isTrue((-0x123456789AB).floorToDouble() is double);
-  Expect.isTrue((-big).floorToDouble() is double);
-}
diff --git a/tests/corelib_2/int_from_environment2_test.dart b/tests/corelib_2/int_from_environment2_test.dart
deleted file mode 100644
index 5284b222a31..00000000000
--- a/tests/corelib_2/int_from_environment2_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// SharedOptions=-Da=x -Db=- -Dc=0xg -Dd=+ -Dd=
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.equals(0, const int.fromEnvironment('a'));
-  Expect.equals(0, const int.fromEnvironment('b'));
-  Expect.equals(0, const int.fromEnvironment('c'));
-  Expect.equals(0, const int.fromEnvironment('d'));
-  Expect.equals(0, const int.fromEnvironment('e'));
-}
diff --git a/tests/corelib_2/int_from_environment_int64_test.dart b/tests/corelib_2/int_from_environment_int64_test.dart
deleted file mode 100644
index a00fd8c34be..00000000000
--- a/tests/corelib_2/int_from_environment_int64_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// SharedOptions=-Df=-9223372036854775808 -Dg=9223372036854775807
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.equals(-9223372036854775808, const int.fromEnvironment('f'));
-  Expect.equals(9223372036854775807, const int.fromEnvironment('g'));
-}
diff --git a/tests/corelib_2/int_from_environment_test.dart b/tests/corelib_2/int_from_environment_test.dart
deleted file mode 100644
index 77f6d6a8893..00000000000
--- a/tests/corelib_2/int_from_environment_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// SharedOptions=-Da=1 -Db=-12 -Dc=0x123 -Dd=-0x1234 -De=+0x112296 -Df=-9007199254740991 -Dg=9007199254740991 -Dh=-0x8000000000000000 -Di=0x8000000000000000 -Dj=0xDEADBEEFCAFE0000
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.equals(1, const int.fromEnvironment('a'));
-  Expect.equals(-12, const int.fromEnvironment('b'));
-  Expect.equals(0x123, const int.fromEnvironment('c'));
-  Expect.equals(-0x1234, const int.fromEnvironment('d'));
-  Expect.equals(0x112296, const int.fromEnvironment('e'));
-  Expect.equals(-9007199254740991, const int.fromEnvironment('f'));
-  Expect.equals(9007199254740991, const int.fromEnvironment('g'));
-  Expect.equals(-0x8000000000000000, const int.fromEnvironment('h'));
-  Expect.equals(0x8000000000000000, const int.fromEnvironment('i'));
-  Expect.equals(0xDEADBEEFCAFE0000, const int.fromEnvironment('j'));
-}
diff --git a/tests/corelib_2/int_modpow_hard_test.dart b/tests/corelib_2/int_modpow_hard_test.dart
deleted file mode 100644
index 1a6a011565f..00000000000
--- a/tests/corelib_2/int_modpow_hard_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Extreme values from int_modulo_arith_test. Test cases that have
-// intermediate values that overflow the precision of 'int'.
-
-import "package:expect/expect.dart";
-
-import "dart:math" show pow;
-
-main() {
-  test(x, e, m, expectedResult) {
-    var result = x.modPow(e, m);
-    Expect.equals(expectedResult, result, "$x.modPow($e, $m)");
-  }
-
-  for (int mBase in [
-    50000000,
-    94906266, // Smallest integer with square over 2^53.
-    100000000,
-    1000000000,
-    3037000500, // Smallest integer with square over 2^63.
-    4000000000,
-    0x7FFFFFFFFFFFF000 + 0xFFC
-  ]) {
-    // On 'web' platforms skip values outside web number safe range.
-    if (mBase == mBase + 1) continue;
-
-    for (int mAdjustment in [0, 1, 2, 3, -1]) {
-      int m = mBase + mAdjustment;
-      for (int e = 1; e < 100; e++) {
-        // Test "M-k ^ N mod M == (-k) ^ N mod M" for some small values of k.
-        test(m - 1, e, m, pow(-1, e) % m);
-        if (e < 53) {
-          test(m - 2, e, m, pow(-2, e) % m);
-        }
-        if (e < 33) {
-          test(m - 3, e, m, pow(-3, e) % m);
-        }
-        if (e < 26) {
-          test(m - 4, e, m, pow(-4, e) % m);
-        }
-      }
-    }
-  }
-}
diff --git a/tests/corelib_2/int_modulo_arith_test.dart b/tests/corelib_2/int_modulo_arith_test.dart
deleted file mode 100644
index ffaa981a6a2..00000000000
--- a/tests/corelib_2/int_modulo_arith_test.dart
+++ /dev/null
@@ -1,174 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "dart:math" show pow;
-
-var smallNumber = 1234567890; //   is 31-bit integer.
-var mediumNumber = 1234567890123456; // is 53-bit integer
-
-testModPow() {
-  test(x, e, m, expectedResult) {
-    // Check that expected result is correct, using an unoptimized version.
-    assert(() {
-      if (1 is double) return true; // Don't have bignums.
-      slowModPow(x, e, m) {
-        var r = 1;
-        while (e > 0) {
-          if (e.isOdd) r = (r * x) % m;
-          e >>= 1;
-          x = (x * x) % m;
-        }
-        return r;
-      }
-
-      return slowModPow(x, e, m) == expectedResult;
-    }());
-    var result = x.modPow(e, m);
-    Expect.equals(expectedResult, result, "$x.modPow($e, $m)");
-  }
-
-  test(10, 20, 1, 0);
-  test(1234567890, 1000000001, 19, 11);
-  test(1234567890, 19, 1000000001, 122998977);
-  test(19, 1234567890, 1000000001, 619059596);
-  test(19, 1000000001, 1234567890, 84910879);
-  test(1000000001, 19, 1234567890, 872984351);
-  test(1000000001, 1234567890, 19, 0);
-}
-
-testModInverse() {
-  test(x, m, expectedResult) {
-    //print("$x op $m == $expectedResult");
-    // Check that expectedResult is an inverse.
-    assert(expectedResult < m);
-    // The 1 % m handles the m = 1 special case.
-    // This test may overflow if we don't have bignums, so only run on VM.
-    assert(1 is double || (((x % m) * expectedResult) - 1) % m == 0);
-
-    var result = x.modInverse(m);
-    Expect.equals(expectedResult, result, "$x modinv $m");
-
-    if (x > m) {
-      x = x % m;
-      var result = x.modInverse(m);
-      Expect.equals(expectedResult, result, "$x modinv $m");
-    }
-  }
-
-  testThrows(x, m) {
-    // Throws if not co-prime, which is a symmetric property.
-    Expect.throws(() => x.modInverse(m), null, "$x modinv $m");
-    Expect.throws(() => m.modInverse(x), null, "$m modinv $x");
-  }
-
-  test(1, 1, 0);
-
-  testThrows(0, 1000000001);
-  testThrows(2, 4);
-  testThrows(99, 9);
-  testThrows(19, 1000000001);
-
-  // Co-prime numbers
-  test(1234567890, 19, 11);
-  test(1234567890, 1000000001, 189108911);
-  test(19, 1234567890, 519818059);
-  test(1000000001, 1234567890, 1001100101);
-
-  test(12345, 12346, 12345);
-  test(12345, 12346, 12345);
-
-  test(smallNumber, 137, 42);
-  test(137, smallNumber, 856087223);
-  test(mediumNumber, 137, 77);
-  test(137, mediumNumber, 540686667207353);
-}
-
-testGcd() {
-  // Call testFunc with all combinations and orders of plus/minus
-  // value and other.
-  callCombos(value, other, testFunc) {
-    testFunc(value, other);
-    testFunc(value, -other);
-    testFunc(-value, other);
-    testFunc(-value, -other);
-    if (value == other) return;
-    testFunc(other, value);
-    testFunc(other, -value);
-    testFunc(-other, value);
-    testFunc(-other, -value);
-  }
-
-  // Test that gcd of value and other (non-negative) is expectedResult.
-  // Tests all combinations of positive and negative values and order of
-  // operands, so use positive values and order is not important.
-  test(value, other, expectedResult) {
-    // Check for bug in test.
-    assert(expectedResult == 0 || value % expectedResult == 0);
-    assert(expectedResult == 0 || other % expectedResult == 0);
-    callCombos(value, other, (a, b) {
-      var result = a.gcd(b);
-
-      /// Check that the result is a divisor.
-      Expect.equals(0, result == 0 ? a : a % result, "$result | $a");
-      Expect.equals(0, result == 0 ? b : b % result, "$result | $b");
-      // Check for bug in test. If assert fails, the expected value is too low,
-      // and the gcd call has found a greater common divisor.
-      assert(result >= expectedResult);
-      Expect.equals(expectedResult, result, "$a.gcd($b)");
-    });
-  }
-
-  // Test that gcd of value and other (non-negative) throws.
-  testThrows(value, other) {
-    callCombos(value, other, (a, b) {
-      Expect.throws(() => a.gcd(b), null, "$a.gcd($b)");
-    });
-  }
-
-  testThrows(2.5, 5); // Not a method on double.
-  testThrows(5, 2.5); // Not accepting non-int arguments.
-
-  // Format:
-  //  test(value1, value2, expectedResult);
-  test(1, 1, 1); //     both are 1
-  test(1, 2, 1); //     one is 1
-  test(3, 5, 1); //     coprime.
-  test(37, 37, 37); // Same larger prime.
-
-  test(9999, 7272, 909); // Larger numbers
-
-  test(0, 1000, 1000); // One operand is zero.
-  test(0, 0, 0); //        Both operands are zero.
-
-  // Multiplying both operands by a number multiplies result by same number.
-  test(693, 609, 21);
-  test(693 << 5, 609 << 5, 21 << 5);
-  test(693 * 937, 609 * 937, 21 * 937);
-  test(693 * pow(2, 32), 609 * pow(2, 32), 21 * pow(2, 32));
-  test(693 * pow(2, 52), 609 * pow(2, 52), 21 * pow(2, 52));
-  test(693 * pow(2, 53), 609 * pow(2, 53), 21 * pow(2, 53)); // Regression.
-  test(693 * pow(2, 99), 609 * pow(2, 99), 21 * pow(2, 99));
-
-  test(1234567890, 19, 1);
-  test(1234567890, 1000000001, 1);
-  test(19, 1000000001, 19);
-
-  test(0x3FFFFFFF, 0x3FFFFFFF, 0x3FFFFFFF);
-  test(0x3FFFFFFF, 0x40000000, 1);
-
-  test(pow(2, 54), pow(2, 53), pow(2, 53));
-
-  test((pow(2, 52) - 1) * pow(2, 10), (pow(2, 26) - 1) * pow(2, 22),
-      (pow(2, 26) - 1) * pow(2, 10));
-}
-
-main() {
-  testModPow(); // //# modPow: ok
-  testModInverse();
-  testGcd();
-}
diff --git a/tests/corelib_2/int_parse_radix_int64_test.dart b/tests/corelib_2/int_parse_radix_int64_test.dart
deleted file mode 100644
index 2ad942e07c0..00000000000
--- a/tests/corelib_2/int_parse_radix_int64_test.dart
+++ /dev/null
@@ -1,70 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "dart:math" show pow, log;
-
-void main() {
-  const String oneByteWhiteSpace = "\x09\x0a\x0b\x0c\x0d\x20"
-      "\x85" //# 01: ok
-      "\xa0";
-  const String whiteSpace = "$oneByteWhiteSpace\u1680"
-      "\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a"
-      "\u2028\u2029\u202f\u205f\u3000\ufeff";
-
-  var digits = "0123456789abcdefghijklmnopqrstuvwxyz";
-  var zeros = "0" * 64;
-
-  void testParse(int result, String radixString, int radix) {
-    var m = "$radixString/$radix->$result";
-    Expect.equals(
-        result, int.parse(radixString.toLowerCase(), radix: radix), m);
-    Expect.equals(
-        result, int.parse(radixString.toUpperCase(), radix: radix), m);
-    Expect.equals(result, int.parse(" $radixString", radix: radix), m);
-    Expect.equals(result, int.parse("$radixString ", radix: radix), m);
-    Expect.equals(result, int.parse(" $radixString ", radix: radix), m);
-    Expect.equals(result, int.parse("+$radixString", radix: radix), m);
-    Expect.equals(result, int.parse(" +$radixString", radix: radix), m);
-    Expect.equals(result, int.parse("+$radixString ", radix: radix), m);
-    Expect.equals(result, int.parse(" +$radixString ", radix: radix), m);
-    Expect.equals(-result, int.parse("-$radixString", radix: radix), m);
-    Expect.equals(-result, int.parse(" -$radixString", radix: radix), m);
-    Expect.equals(-result, int.parse("-$radixString ", radix: radix), m);
-    Expect.equals(-result, int.parse(" -$radixString ", radix: radix), m);
-    Expect.equals(
-        result,
-        int.parse("$oneByteWhiteSpace$radixString$oneByteWhiteSpace",
-            radix: radix),
-        m);
-    Expect.equals(
-        -result,
-        int.parse("$oneByteWhiteSpace-$radixString$oneByteWhiteSpace",
-            radix: radix),
-        m);
-    Expect.equals(result,
-        int.parse("$whiteSpace$radixString$whiteSpace", radix: radix), m);
-    Expect.equals(-result,
-        int.parse("$whiteSpace-$radixString$whiteSpace", radix: radix), m);
-
-    Expect.equals(result, int.parse("$zeros$radixString", radix: radix), m);
-    Expect.equals(result, int.parse("+$zeros$radixString", radix: radix), m);
-    Expect.equals(-result, int.parse("-$zeros$radixString", radix: radix), m);
-  }
-
-  final max = 9223372036854775807;
-  for (int i = 2; i <= 36; i++) { //             //# 02: ok
-    // Test with bignums. //                     //# 02: continued
-    final n = (log(max) / log(i)).truncate(); // //# 02: continued
-    var digit = digits[i - 1]; //                //# 02: continued
-    testParse(pow(i, n) - 1, digit * n, i); //   //# 02: continued
-    testParse(0, zeros, i); //                   //# 02: continued
-  } //                                           //# 02: continued
-
-  // Big number.
-  Expect.equals(9223372036854775807, int.parse("9223372036854775807"));
-  Expect.equals(-9223372036854775808, int.parse("-9223372036854775808"));
-}
diff --git a/tests/corelib_2/int_parse_radix_test.dart b/tests/corelib_2/int_parse_radix_test.dart
deleted file mode 100644
index 7ed7b2e4202..00000000000
--- a/tests/corelib_2/int_parse_radix_test.dart
+++ /dev/null
@@ -1,129 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "dart:math" show pow, log;
-
-void main() {
-  const String oneByteWhiteSpace = "\x09\x0a\x0b\x0c\x0d\x20"
-    "\x85" //# 01: ok
-      "\xa0";
-  const String whiteSpace = "$oneByteWhiteSpace\u1680"
-      "\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a"
-      "\u2028\u2029\u202f\u205f\u3000\ufeff";
-
-  var digits = "0123456789abcdefghijklmnopqrstuvwxyz";
-  var zeros = "0" * 64;
-
-  for (int i = 0; i < whiteSpace.length; i++) {
-    var ws = whiteSpace[i];
-    Expect.equals(0, int.parse("${ws}0${ws}", radix: 2));
-  }
-
-  void testParse(int result, String radixString, int radix) {
-    var m = "$radixString/$radix->$result";
-    Expect.equals(
-        result, int.parse(radixString.toLowerCase(), radix: radix), m);
-    Expect.equals(
-        result, int.parse(radixString.toUpperCase(), radix: radix), m);
-    Expect.equals(result, int.parse(" $radixString", radix: radix), m);
-    Expect.equals(result, int.parse("$radixString ", radix: radix), m);
-    Expect.equals(result, int.parse(" $radixString ", radix: radix), m);
-    Expect.equals(result, int.parse("+$radixString", radix: radix), m);
-    Expect.equals(result, int.parse(" +$radixString", radix: radix), m);
-    Expect.equals(result, int.parse("+$radixString ", radix: radix), m);
-    Expect.equals(result, int.parse(" +$radixString ", radix: radix), m);
-    Expect.equals(-result, int.parse("-$radixString", radix: radix), m);
-    Expect.equals(-result, int.parse(" -$radixString", radix: radix), m);
-    Expect.equals(-result, int.parse("-$radixString ", radix: radix), m);
-    Expect.equals(-result, int.parse(" -$radixString ", radix: radix), m);
-    Expect.equals(
-        result,
-        int.parse("$oneByteWhiteSpace$radixString$oneByteWhiteSpace",
-            radix: radix),
-        m);
-    Expect.equals(
-        -result,
-        int.parse("$oneByteWhiteSpace-$radixString$oneByteWhiteSpace",
-            radix: radix),
-        m);
-    Expect.equals(result,
-        int.parse("$whiteSpace$radixString$whiteSpace", radix: radix), m);
-    Expect.equals(-result,
-        int.parse("$whiteSpace-$radixString$whiteSpace", radix: radix), m);
-
-    Expect.equals(result, int.parse("$zeros$radixString", radix: radix), m);
-    Expect.equals(result, int.parse("+$zeros$radixString", radix: radix), m);
-    Expect.equals(-result, int.parse("-$zeros$radixString", radix: radix), m);
-  }
-
-  for (int r = 2; r <= 36; r++) {
-    for (int i = 0; i <= r * r; i++) {
-      String radixString = i.toRadixString(r);
-      testParse(i, radixString, r);
-    }
-  }
-
-  final max = 0x1FFFFFFFFFFFFF;
-  for (int i = 2; i <= 36; i++) { //             //# 02: ok
-    // Test with bignums. //                     //# 02: continued
-    final n = (log(max) / log(i)).truncate(); // //# 02: continued
-    var digit = digits[i - 1]; //                //# 02: continued
-    testParse(pow(i, n) - 1, digit * n, i); //   //# 02: continued
-    testParse(0, zeros, i); //                   //# 02: continued
-  } //                                           //# 02: continued
-
-  // Allow both upper- and lower-case letters.
-  Expect.equals(0xABCD, int.parse("ABCD", radix: 16));
-  Expect.equals(0xABCD, int.parse("abcd", radix: 16));
-  Expect.equals(15628859, int.parse("09azAZ", radix: 36));
-  // Big-ish number. (2^53)
-  Expect.equals(9007199254740991, int.parse("9007199254740991"));
-  Expect.equals(-9007199254740991, int.parse("-9007199254740991"));
-  Expect.equals(-9223372036854775808, int.parse("-9223372036854775808"));
-  // Allow whitespace before and after the number.
-  Expect.equals(1, int.parse(" 1", radix: 2));
-  Expect.equals(1, int.parse("1 ", radix: 2));
-  Expect.equals(1, int.parse(" 1 ", radix: 2));
-  Expect.equals(1, int.parse("\n1", radix: 2));
-  Expect.equals(1, int.parse("1\n", radix: 2));
-  Expect.equals(1, int.parse("\n1\n", radix: 2));
-  Expect.equals(1, int.parse("+1", radix: 2));
-
-  void testFails(String source, int radix) {
-   Expect.throwsFormatException(
-      () => int.parse(source, radix: radix), "$source/$radix");
-    Expect.equals(-999, int.tryParse(source, radix: radix) ?? -999);
-  }
-
-  for (int i = 2; i < 36; i++) {
-    var char = i.toRadixString(36);
-    testFails(char.toLowerCase(), i);
-    testFails(char.toUpperCase(), i);
-  }
-  testFails("", 2);
-  testFails("+ 1", 2); // No space between sign and digits.
-  testFails("- 1", 2); // No space between sign and digits.
-  testFails("0x", null);
-  for (int i = 2; i <= 33; i++) {
-    // No 0x specially allowed.
-    // At radix 34 and above, "x" is a valid digit.
-    testFails("0x10", i);
-  }
-
-  testBadArguments(String source, int radix) {
-    // If the types match, it should be an ArgumentError of some sort.
-    Expect.throwsArgumentError(
-        () => int.parse(source, radix: radix));
-  }
-
-  testBadArguments("0", -1);
-  testBadArguments("0", 0);
-  testBadArguments("0", 1);
-  testBadArguments("0", 37);
-
-  // See also int_parse_radix_bad_handler_test.dart
-}
diff --git a/tests/corelib_2/int_parse_with_limited_ints_test.dart b/tests/corelib_2/int_parse_with_limited_ints_test.dart
deleted file mode 100644
index 3cd9528ce1b..00000000000
--- a/tests/corelib_2/int_parse_with_limited_ints_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for int.parse with limited 64-bit integers.
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.equals(0, int.parse("0"));
-  Expect.equals(1, int.parse("1"));
-  Expect.equals(-1, int.parse("-1"));
-
-  Expect.equals(0x7ffffffffffffffe, int.parse("0x7ffffffffffffffe"));
-  Expect.equals(0x7fffffffffffffff, int.parse("0x7fffffffffffffff"));
-  Expect.equals(-0x7fffffffffffffff, int.parse("-0x7fffffffffffffff"));
-  Expect.equals(-0x7fffffffffffffff - 1, int.parse("-0x8000000000000000"));
-  Expect.equals(1 << 63, int.parse("0x8000000000000000"));
-
-  Expect.equals(8999999999999999999, int.parse("8999999999999999999"));
-  Expect.equals(-8999999999999999999, int.parse("-8999999999999999999"));
-  Expect.equals(9223372036854775807, int.parse("9223372036854775807"));
-  Expect.equals(-9223372036854775807, int.parse("-9223372036854775807"));
-  Expect.equals(-9223372036854775807 - 1, int.parse("-9223372036854775808"));
-
-  Expect.throws(() => int.parse("-0x8000000000000001"));
-  Expect.throws(() => int.parse("9223372036854775808"));
-  Expect.throws(() => int.parse("9223372036854775809"));
-  Expect.throws(() => int.parse("-9223372036854775809"));
-  Expect.throws(() => int.parse("10000000000000000000"));
-
-  Expect.equals(
-      0x7fffffffffffffff,
-      int.parse(
-          "111111111111111111111111111111111111111111111111111111111111111",
-          radix: 2));
-  Expect.equals(
-      -0x7fffffffffffffff,
-      int.parse(
-          "-111111111111111111111111111111111111111111111111111111111111111",
-          radix: 2));
-  Expect.equals(
-      -0x7fffffffffffffff - 1,
-      int.parse(
-          "-1000000000000000000000000000000000000000000000000000000000000000",
-          radix: 2));
-
-  Expect.throws(() => int.parse(
-      "1000000000000000000000000000000000000000000000000000000000000000",
-      radix: 2));
-  Expect.throws(() => int.parse(
-      "1111111111111111111111111111111111111111111111111111111111111110",
-      radix: 2));
-  Expect.throws(() => int.parse(
-      "1111111111111111111111111111111111111111111111111111111111111111",
-      radix: 2));
-  Expect.throws(() => int.parse(
-      "-1000000000000000000000000000000000000000000000000000000000000001",
-      radix: 2));
-}
diff --git a/tests/corelib_2/int_round_test.dart b/tests/corelib_2/int_round_test.dart
deleted file mode 100644
index 8b3b25885ef..00000000000
--- a/tests/corelib_2/int_round_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  const int big = 0x123456789AB0000 + 0xCDEF; // truncating arithmetic on web.
-
-  Expect.equals(0, 0.round());
-  Expect.equals(1, 1.round());
-  Expect.equals(0x1234, 0x1234.round());
-  Expect.equals(0x12345678, 0x12345678.round());
-  Expect.equals(0x123456789AB, 0x123456789AB.round());
-  Expect.equals(big, big.round());
-  Expect.equals(-1, (-1).round());
-  Expect.equals(-0x1234, (-0x1234).round());
-  Expect.equals(-0x12345678, (-0x12345678).round());
-  Expect.equals(-0x123456789AB, (-0x123456789AB).round());
-  Expect.equals(-big, (-big).round());
-
-  Expect.isTrue(0.round() is int);
-  Expect.isTrue(1.round() is int);
-  Expect.isTrue(0x1234.round() is int);
-  Expect.isTrue(0x12345678.round() is int);
-  Expect.isTrue(0x123456789AB.round() is int);
-  Expect.isTrue(big.round() is int);
-  Expect.isTrue((-1).round() is int);
-  Expect.isTrue((-0x1234).round() is int);
-  Expect.isTrue((-0x12345678).round() is int);
-  Expect.isTrue((-0x123456789AB).round() is int);
-  Expect.isTrue((-big).round() is int);
-}
diff --git a/tests/corelib_2/int_round_to_double_test.dart b/tests/corelib_2/int_round_to_double_test.dart
deleted file mode 100644
index a6b0fd997d6..00000000000
--- a/tests/corelib_2/int_round_to_double_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  const int big = 0x123456789AB0000 + 0xCDEF; // Slightly rounded on web.
-
-  Expect.equals(0.0, 0.roundToDouble());
-  Expect.equals(1.0, 1.roundToDouble());
-  Expect.equals(0x1234, 0x1234.roundToDouble());
-  Expect.equals(0x12345678, 0x12345678.roundToDouble());
-  Expect.equals(0x123456789AB, 0x123456789AB.roundToDouble());
-  Expect.equals(81985529216486900.0, big.roundToDouble());
-  Expect.equals(-1.0, (-1).roundToDouble());
-  Expect.equals(-0x1234, (-0x1234).roundToDouble());
-  Expect.equals(-0x12345678, (-0x12345678).roundToDouble());
-  Expect.equals(-0x123456789AB, (-0x123456789AB).roundToDouble());
-  Expect.equals(-81985529216486900.0, (-big).roundToDouble());
-
-  Expect.isTrue(0.roundToDouble() is double);
-  Expect.isTrue(1.roundToDouble() is double);
-  Expect.isTrue(0x1234.roundToDouble() is double);
-  Expect.isTrue(0x12345678.roundToDouble() is double);
-  Expect.isTrue(0x123456789AB.roundToDouble() is double);
-  Expect.isTrue(big.roundToDouble() is double);
-  Expect.isTrue((-1).roundToDouble() is double);
-  Expect.isTrue((-0x1234).roundToDouble() is double);
-  Expect.isTrue((-0x12345678).roundToDouble() is double);
-  Expect.isTrue((-0x123456789AB).roundToDouble() is double);
-  Expect.isTrue((-big).roundToDouble() is double);
-}
diff --git a/tests/corelib_2/int_to_int_test.dart b/tests/corelib_2/int_to_int_test.dart
deleted file mode 100644
index ff0cbf2cb0f..00000000000
--- a/tests/corelib_2/int_to_int_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  const int big = 0x123456789AB0000 + 0xCDEF; // Slightly rounded on web.
-
-  Expect.equals(0, 0.toInt());
-  Expect.equals(1, 1.toInt());
-  Expect.equals(0x1234, 0x1234.toInt());
-  Expect.equals(0x12345678, 0x12345678.toInt());
-  Expect.equals(0x123456789AB, 0x123456789AB.toInt());
-  Expect.equals(big, big.toInt());
-  Expect.equals(-1, (-1).toInt());
-  Expect.equals(-0x1234, (-0x1234).toInt());
-  Expect.equals(-0x12345678, (-0x12345678).toInt());
-  Expect.equals(-0x123456789AB, (-0x123456789AB).toInt());
-  Expect.equals(-big, (-big).toInt());
-
-  Expect.isTrue(0.toInt() is int);
-  Expect.isTrue(1.toInt() is int);
-  Expect.isTrue(0x1234.toInt() is int);
-  Expect.isTrue(0x12345678.toInt() is int);
-  Expect.isTrue(0x123456789AB.toInt() is int);
-  Expect.isTrue(big.toInt() is int);
-  Expect.isTrue((-1).toInt() is int);
-  Expect.isTrue((-0x1234).toInt() is int);
-  Expect.isTrue((-0x12345678).toInt() is int);
-  Expect.isTrue((-0x123456789AB).toInt() is int);
-  Expect.isTrue((-big).toInt() is int);
-}
diff --git a/tests/corelib_2/int_truncate_test.dart b/tests/corelib_2/int_truncate_test.dart
deleted file mode 100644
index 02eb2e7d892..00000000000
--- a/tests/corelib_2/int_truncate_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  const int big = 0x123456789AB0000 + 0xCDEF; // Slightly rounded on web.
-
-  Expect.equals(0, 0.truncate());
-  Expect.equals(1, 1.truncate());
-  Expect.equals(0x1234, 0x1234.truncate());
-  Expect.equals(0x12345678, 0x12345678.truncate());
-  Expect.equals(0x123456789AB, 0x123456789AB.truncate());
-  Expect.equals(big, big.truncate());
-  Expect.equals(-1, (-1).truncate());
-  Expect.equals(-0x1234, (-0x1234).truncate());
-  Expect.equals(-0x12345678, (-0x12345678).truncate());
-  Expect.equals(-0x123456789AB, (-0x123456789AB).truncate());
-  Expect.equals(-big, (-big).truncate());
-
-  Expect.isTrue(0.truncate() is int);
-  Expect.isTrue(1.truncate() is int);
-  Expect.isTrue(0x1234.truncate() is int);
-  Expect.isTrue(0x12345678.truncate() is int);
-  Expect.isTrue(0x123456789AB.truncate() is int);
-  Expect.isTrue(big.truncate() is int);
-  Expect.isTrue((-1).truncate() is int);
-  Expect.isTrue((-0x1234).truncate() is int);
-  Expect.isTrue((-0x12345678).truncate() is int);
-  Expect.isTrue((-0x123456789AB).truncate() is int);
-  Expect.isTrue((-big).truncate() is int);
-}
diff --git a/tests/corelib_2/int_truncate_to_double_test.dart b/tests/corelib_2/int_truncate_to_double_test.dart
deleted file mode 100644
index ef3f104a173..00000000000
--- a/tests/corelib_2/int_truncate_to_double_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  const int big = 0x123456789AB0000 + 0xCDEF; // Slightly rounded on web.
-
-  Expect.equals(0.0, 0.truncateToDouble());
-  Expect.equals(1.0, 1.truncateToDouble());
-  Expect.equals(0x1234, 0x1234.truncateToDouble());
-  Expect.equals(0x12345678, 0x12345678.truncateToDouble());
-  Expect.equals(0x123456789AB, 0x123456789AB.truncateToDouble());
-  Expect.equals(81985529216486900.0, big.truncateToDouble());
-  Expect.equals(-1.0, (-1).truncateToDouble());
-  Expect.equals(-0x1234, (-0x1234).truncateToDouble());
-  Expect.equals(-0x12345678, (-0x12345678).truncateToDouble());
-  Expect.equals(-0x123456789AB, (-0x123456789AB).truncateToDouble());
-  Expect.equals(-81985529216486900.0, (-big).truncateToDouble());
-
-  Expect.isTrue(0.truncateToDouble() is double);
-  Expect.isTrue(1.truncateToDouble() is double);
-  Expect.isTrue(0x1234.truncateToDouble() is double);
-  Expect.isTrue(0x12345678.truncateToDouble() is double);
-  Expect.isTrue(0x123456789AB.truncateToDouble() is double);
-  Expect.isTrue(big.truncateToDouble() is double);
-  Expect.isTrue((-1).truncateToDouble() is double);
-  Expect.isTrue((-0x1234).truncateToDouble() is double);
-  Expect.isTrue((-0x12345678).truncateToDouble() is double);
-  Expect.isTrue((-0x123456789AB).truncateToDouble() is double);
-  Expect.isTrue((-big).truncateToDouble() is double);
-}
diff --git a/tests/corelib_2/int_try_parse_int64_test.dart b/tests/corelib_2/int_try_parse_int64_test.dart
deleted file mode 100644
index f90794ba25b..00000000000
--- a/tests/corelib_2/int_try_parse_int64_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "dart:math" show pow, log;
-
-void main() {
-  // Big numbers (representable as both Int64 and double).
-  Expect.equals(9223372036854774784, int.tryParse("9223372036854774784"));
-  Expect.equals(-9223372036854775808, int.tryParse("-9223372036854775808"));
-}
diff --git a/tests/corelib_2/int_try_parse_test.dart b/tests/corelib_2/int_try_parse_test.dart
deleted file mode 100644
index 0705314b3f0..00000000000
--- a/tests/corelib_2/int_try_parse_test.dart
+++ /dev/null
@@ -1,150 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "dart:math" show pow, log;
-
-void main() {
-  const String oneByteWhiteSpace = "\x09\x0a\x0b\x0c\x0d\x20\xa0";
-  const String whiteSpace = "$oneByteWhiteSpace\u1680"
-      "\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a"
-      "\u2028\u2029\u202f\u205f\u3000\ufeff";
-
-  var digits = "0123456789abcdefghijklmnopqrstuvwxyz";
-  var zeros = "0" * 64;
-
-  for (int i = 0; i < whiteSpace.length; i++) {
-    var ws = whiteSpace[i];
-    Expect.equals(0, int.parse("${ws}0${ws}", radix: 2));
-  }
-
-  void testParse(int result, String radixString, int radix) {
-    var m = "$radixString/$radix->$result";
-    Expect.equals(
-        result, int.tryParse(radixString.toLowerCase(), radix: radix), m);
-    Expect.equals(
-        result, int.tryParse(radixString.toUpperCase(), radix: radix), m);
-    Expect.equals(result, int.tryParse(" $radixString", radix: radix), m);
-    Expect.equals(result, int.tryParse("$radixString ", radix: radix), m);
-    Expect.equals(result, int.tryParse(" $radixString ", radix: radix), m);
-    Expect.equals(result, int.tryParse("+$radixString", radix: radix), m);
-    Expect.equals(result, int.tryParse(" +$radixString", radix: radix), m);
-    Expect.equals(result, int.tryParse("+$radixString ", radix: radix), m);
-    Expect.equals(result, int.tryParse(" +$radixString ", radix: radix), m);
-    Expect.equals(-result, int.tryParse("-$radixString", radix: radix), m);
-    Expect.equals(-result, int.tryParse(" -$radixString", radix: radix), m);
-    Expect.equals(-result, int.tryParse("-$radixString ", radix: radix), m);
-    Expect.equals(-result, int.tryParse(" -$radixString ", radix: radix), m);
-    Expect.equals(
-        result,
-        int.tryParse("$oneByteWhiteSpace$radixString$oneByteWhiteSpace",
-            radix: radix),
-        m);
-    Expect.equals(
-        -result,
-        int.tryParse("$oneByteWhiteSpace-$radixString$oneByteWhiteSpace",
-            radix: radix),
-        m);
-    Expect.equals(result,
-        int.tryParse("$whiteSpace$radixString$whiteSpace", radix: radix), m);
-    Expect.equals(-result,
-        int.tryParse("$whiteSpace-$radixString$whiteSpace", radix: radix), m);
-
-    Expect.equals(result, int.tryParse("$zeros$radixString", radix: radix), m);
-    Expect.equals(result, int.tryParse("+$zeros$radixString", radix: radix), m);
-    Expect.equals(
-        -result, int.tryParse("-$zeros$radixString", radix: radix), m);
-  }
-
-  for (int r = 2; r <= 36; r++) {
-    for (int i = 0; i <= r * r; i++) {
-      String radixString = i.toRadixString(r);
-      testParse(i, radixString, r);
-    }
-    for (var v in [
-      0,
-      0x10000,
-      0x7FFFFFFF,
-      0x80000000,
-      0xFFFFFFFF,
-      0x100000000,
-      0x7FFFFFFFFFFFF8,
-    ]) {
-      var string = v.toRadixString(r);
-      Expect.equals(v, int.tryParse(string, radix: r));
-      if (v > 0) {
-        Expect.equals(-v, int.tryParse("-$string", radix: r));
-        if (r == 16) {
-          Expect.equals(v, int.tryParse("0x$string"));
-          Expect.equals(v, int.tryParse("0X$string"));
-        }
-      }
-    }
-  }
-
-  // Allow both upper- and lower-case letters.
-  Expect.equals(0xABCD, int.tryParse("ABCD", radix: 16));
-  Expect.equals(0xABCD, int.tryParse("abcd", radix: 16));
-  Expect.equals(15628859, int.tryParse("09azAZ", radix: 36));
-  // Bigish numbers (representable precisely as both Int64 and double (2^53)).
-  Expect.equals(9007199254740991, int.tryParse("9007199254740991"));
-  Expect.equals(-9007199254740991, int.tryParse("-9007199254740991"));
-  // Allow whitespace before and after the number.
-  Expect.equals(1, int.tryParse(" 1", radix: 2));
-  Expect.equals(1, int.tryParse("1 ", radix: 2));
-  Expect.equals(1, int.tryParse(" 1 ", radix: 2));
-  Expect.equals(1, int.tryParse("\n1", radix: 2));
-  Expect.equals(1, int.tryParse("1\n", radix: 2));
-  Expect.equals(1, int.tryParse("\n1\n", radix: 2));
-  Expect.equals(1, int.tryParse("+1", radix: 2));
-
-  void testFails(String source, int radix, [String message]) {
-    Expect.isNull(int.tryParse(source, radix: radix), message);
-  }
-
-  for (int i = 2; i < 36; i++) {
-    var char = i.toRadixString(36);
-    testFails(char.toLowerCase(), i);
-    testFails(char.toUpperCase(), i);
-  }
-  testFails("", 2);
-  testFails("+ 1", 2); // No space between sign and digits.
-  testFails("- 1", 2); // No space between sign and digits.
-  testFails("0x", null);
-  for (int i = 2; i <= 33; i++) {
-    // No 0x specially allowed.
-    // At radix 34 and above, "x" is a valid digit.
-    testFails("0x10", i);
-  }
-
-  int digitX = 33;
-  Expect.equals(((digitX * 34) + 1) * 34, int.tryParse("0x10", radix: 34));
-  Expect.equals(((digitX * 35) + 1) * 35, int.tryParse("0x10", radix: 35));
-
-  // Radix must be in the range 2 .. 36.
-  Expect.throwsArgumentError(() => int.tryParse("0", radix: -1));
-  Expect.throwsArgumentError(() => int.tryParse("0", radix: 0));
-  Expect.throwsArgumentError(() => int.tryParse("0", radix: -1));
-  Expect.throwsArgumentError(() => int.tryParse("0", radix: 37));
-
-  // Regression test for http://dartbug.com/32858
-  Expect.equals(
-      -0x8000000000000000, int.tryParse("-0x8000000000000000"), "-minint");
-
-  // Tests run only with 64-bit integers.
-  if (0x8000000000000000 < 0) {
-    // `int` is 64-bit signed integers.
-    Expect.equals(
-        -0x8000000000000000, int.tryParse("0x8000000000000000"), "0xUnsigned");
-    Expect.equals(-1, int.tryParse("0xFFFFFFFFFFFFFFFF"), "0xUnsigned2");
-
-    Expect.equals(
-        0x8000000000000000 - 1, int.tryParse("0x7FFFFFFFFFFFFFFF"), "maxint");
-    testFails("8000000000000000", 16, "2^63 radix: 16");
-    testFails("FFFFFFFFFFFFFFFF", 16, "maxuint64 radix: 16");
-    testFails("-0xC000000000000000", null, "signed uint64");
-  }
-}
diff --git a/tests/corelib_2/integer_arith_vm_test.dart b/tests/corelib_2/integer_arith_vm_test.dart
deleted file mode 100644
index d0748c128c8..00000000000
--- a/tests/corelib_2/integer_arith_vm_test.dart
+++ /dev/null
@@ -1,141 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing integers with and without intrinsics.
-// VMOptions=
-// VMOptions=--no_intrinsify
-// VMOptions=--optimization_counter_threshold=10 --no-background_compilation
-
-library integer_arithmetic_test;
-
-import "package:expect/expect.dart";
-
-foo() => 1234567890123456789;
-
-testSmiOverflow() {
-  var a = 1073741823;
-  var b = 1073741822;
-  Expect.equals(2147483645, a + b);
-  a = -1000000000;
-  b = 1000000001;
-  Expect.equals(-2000000001, a - b);
-  Expect.equals(-1000000001000000000, a * b);
-}
-
-testModPow() {
-  var x, e, m;
-  x = 1234567890;
-  e = 1000000001;
-  m = 19;
-  Expect.equals(11, x.modPow(e, m));
-  x = 1234567890;
-  e = 19;
-  m = 1000000001;
-  Expect.equals(122998977, x.modPow(e, m));
-  x = 19;
-  e = 1234567890;
-  m = 1000000001;
-  Expect.equals(619059596, x.modPow(e, m));
-  x = 19;
-  e = 1000000001;
-  m = 1234567890;
-  Expect.equals(84910879, x.modPow(e, m));
-  x = 1000000001;
-  e = 19;
-  m = 1234567890;
-  Expect.equals(872984351, x.modPow(e, m));
-  x = 1000000001;
-  e = 1234567890;
-  m = 19;
-  Expect.equals(0, x.modPow(e, m));
-}
-
-testModInverse() {
-  var x, m;
-  x = 1;
-  m = 1;
-  Expect.equals(0, x.modInverse(m));
-  x = 0;
-  m = 1000000001;
-  Expect.throws(() => x.modInverse(m), (e) => e is Exception); // Not coprime.
-  x = 1234567890;
-  m = 19;
-  Expect.equals(11, x.modInverse(m));
-  x = 1234567890;
-  m = 1000000001;
-  Expect.equals(189108911, x.modInverse(m));
-  x = 19;
-  m = 1000000001;
-  Expect.throws(() => x.modInverse(m), (e) => e is Exception); // Not coprime.
-  x = 19;
-  m = 1234567890;
-  Expect.equals(519818059, x.modInverse(m));
-  x = 1000000001;
-  m = 1234567890;
-  Expect.equals(1001100101, x.modInverse(m));
-  x = 1000000001;
-  m = 19;
-  Expect.throws(() => x.modInverse(m), (e) => e is Exception); // Not coprime.
-}
-
-testGcd() {
-  var x, m;
-  x = 1;
-  m = 1;
-  Expect.equals(1, x.gcd(m));
-  x = 693;
-  m = 609;
-  Expect.equals(21, x.gcd(m));
-  x = 693 << 40;
-  m = 609 << 40;
-  Expect.equals(21 << 40, x.gcd(m));
-  x = 609 << 40;
-  m = 693 << 40;
-  Expect.equals(21 << 40, x.gcd(m));
-  x = 0;
-  m = 1000000001;
-  Expect.equals(m, x.gcd(m));
-  x = 1000000001;
-  m = 0;
-  Expect.equals(x, x.gcd(m));
-  x = 0;
-  m = -1000000001;
-  Expect.equals(-m, x.gcd(m));
-  x = -1000000001;
-  m = 0;
-  Expect.equals(-x, x.gcd(m));
-  x = 0;
-  m = 0;
-  Expect.equals(0, x.gcd(m));
-  x = 1234567890;
-  m = 19;
-  Expect.equals(1, x.gcd(m));
-  x = 1234567890;
-  m = 1000000001;
-  Expect.equals(1, x.gcd(m));
-  x = 19;
-  m = 1000000001;
-  Expect.equals(19, x.gcd(m));
-  x = 19;
-  m = 1234567890;
-  Expect.equals(1, x.gcd(m));
-  x = 1000000001;
-  m = 1234567890;
-  Expect.equals(1, x.gcd(m));
-  x = 1000000001;
-  m = 19;
-  Expect.equals(19, x.gcd(m));
-}
-
-main() {
-  for (int i = 0; i < 10; i++) {
-    Expect.equals(1234567890123456789, foo());
-    testSmiOverflow();
-    testModPow(); // //# modPow: ok
-    testModInverse();
-    testGcd();
-  }
-}
diff --git a/tests/corelib_2/integer_parsed_arith_vm_test.dart b/tests/corelib_2/integer_parsed_arith_vm_test.dart
deleted file mode 100644
index 9e19f0c9735..00000000000
--- a/tests/corelib_2/integer_parsed_arith_vm_test.dart
+++ /dev/null
@@ -1,473 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing integers with and without intrinsics.
-// VMOptions=
-// VMOptions=--no_intrinsify
-
-library integer_arithmetic_test;
-
-import "package:expect/expect.dart";
-
-String toHexString(int value) => value >= 0
-    ? "0x${value.toRadixString(16)}"
-    : "-0x${value.toRadixString(16).substring(1)}";
-
-addSubParsed(String a, String b, String sum) {
-  int int_a = int.parse(a);
-  int int_b = int.parse(b);
-  int int_sum = int.parse(sum);
-  int computed_sum = int_a + int_b;
-  Expect.equals(int_sum, computed_sum);
-  String str_sum = toHexString(computed_sum);
-  Expect.equals(sum.toLowerCase(), str_sum);
-  int computed_difference1 = int_sum - int_a;
-  Expect.equals(int_b, computed_difference1);
-  String str_difference1 = toHexString(computed_difference1);
-  Expect.equals(b.toLowerCase(), str_difference1);
-  int computed_difference2 = int_sum - int_b;
-  Expect.equals(int_a, computed_difference2);
-  String str_difference2 = toHexString(computed_difference2);
-  Expect.equals(a.toLowerCase(), str_difference2);
-}
-
-testAddSub() {
-  String zero = "0x0";
-  String one = "0x1";
-  String minus_one = "-0x1";
-
-  addSubParsed(zero, zero, zero);
-  addSubParsed(zero, one, one);
-  addSubParsed(one, zero, one);
-  addSubParsed(one, one, "0x2");
-  addSubParsed(minus_one, minus_one, "-0x2");
-  addSubParsed("0x123", zero, "0x123");
-  addSubParsed(zero, "0x123", "0x123");
-  addSubParsed("0x123", one, "0x124");
-  addSubParsed(one, "0x123", "0x124");
-  addSubParsed(
-      "0xFFFFFFF",
-      one, // 28 bit overflow.
-      "0x10000000");
-  addSubParsed(
-      "0xFFFFFFFF",
-      one, // 32 bit overflow.
-      "0x100000000");
-  addSubParsed(
-      "0xFFFFFFFFFFFFFF",
-      one, // 56 bit overflow.
-      "0x100000000000000");
-  addSubParsed(
-      "0x7FFFFFFFFFFFFFFF",
-      one, // 64 bit overflow.
-      "-0x8000000000000000");
-  addSubParsed(
-      minus_one,
-      one, // 64 bit overflow.
-      zero);
-  addSubParsed(
-      "0x8000000", // 28 bit overflow.
-      "0x8000000",
-      "0x10000000");
-  addSubParsed(
-      "0x80000000", // 32 bit overflow.
-      "0x80000000",
-      "0x100000000");
-  addSubParsed(
-      "0x80000000000000", // 56 bit overflow.
-      "0x80000000000000",
-      "0x100000000000000");
-  addSubParsed(
-      "-0x8000000000000000", // 64 bit overflow.
-      "-0x8000000000000000",
-      zero);
-
-  addSubParsed("-0x123", minus_one, "-0x124");
-  addSubParsed(minus_one, "-0x123", "-0x124");
-  addSubParsed(
-      "-0xFFFFFFF",
-      minus_one, // 28 bit overflow.
-      "-0x10000000");
-  addSubParsed(
-      "-0xFFFFFFFF",
-      minus_one, // 32 bit overflow.
-      "-0x100000000");
-  addSubParsed(
-      "-0xFFFFFFFFFFFFFF",
-      minus_one, // 56 bit overflow.
-      "-0x100000000000000");
-  addSubParsed(
-      "-0x8000000000000000",
-      minus_one, // 64 bit overflow.
-      "0x7FFFFFFFFFFFFFFF");
-  addSubParsed(
-      "-0x8000000", // 28 bit overflow.
-      "-0x8000000",
-      "-0x10000000");
-  addSubParsed(
-      "-0x80000000", // 32 bit overflow.
-      "-0x80000000",
-      "-0x100000000");
-  addSubParsed(
-      "-0x80000000000000", // 56 bit overflow.
-      "-0x80000000000000",
-      "-0x100000000000000");
-  addSubParsed(
-      "-0x8000000000000000", // 64 bit overflow.
-      "-0x8000000000000000",
-      "0x0");
-
-  addSubParsed("0xB", "-0x7", "0x4");
-  addSubParsed("-0xB", "-0x7", "-0x12");
-  addSubParsed("0xB", "0x7", "0x12");
-  addSubParsed("-0xB", "0x7", "-0x4");
-  addSubParsed("-0x7", "0xB", "0x4");
-  addSubParsed("-0x7", "-0xB", "-0x12");
-  addSubParsed("0x7", "0xB", "0x12");
-  addSubParsed("0x7", "-0xB", "-0x4");
-}
-
-shiftLeftParsed(String a, int amount, String result,
-    {String result_back_shifted}) {
-  result_back_shifted ??= a;
-  int int_a = int.parse(a);
-  int int_result = int.parse(result);
-  int int_result_back_shifted = int.parse(result_back_shifted);
-  int shifted = int_a << amount;
-  Expect.equals(int_result, shifted);
-  String str_shifted = toHexString(shifted);
-  Expect.equals(result.toLowerCase(), str_shifted);
-  int back_shifted = shifted >> amount;
-  Expect.equals(int_result_back_shifted, back_shifted);
-  String str_back_shifted = toHexString(back_shifted);
-  Expect.equals(result_back_shifted.toLowerCase(), str_back_shifted);
-}
-
-testLeftShift() {
-  String zero = "0x0";
-  String one = "0x1";
-  String minus_one = "-0x1";
-
-  shiftLeftParsed(zero, 0, zero);
-  shiftLeftParsed(one, 0, one);
-  shiftLeftParsed("0x1234", 0, "0x1234");
-  shiftLeftParsed(zero, 100000, zero);
-  shiftLeftParsed(one, 1, "0x2");
-  shiftLeftParsed(one, 28, "0x10000000");
-  shiftLeftParsed(one, 32, "0x100000000");
-  shiftLeftParsed(one, 64, zero, result_back_shifted: zero);
-  shiftLeftParsed("0x5", 28, "0x50000000");
-  shiftLeftParsed("0x5", 32, "0x500000000");
-  shiftLeftParsed("0x5", 56, "0x500000000000000");
-  shiftLeftParsed("0x5", 64, zero, result_back_shifted: zero);
-  shiftLeftParsed("0x5", 128, zero, result_back_shifted: zero);
-  shiftLeftParsed("0x5", 27, "0x28000000");
-  shiftLeftParsed("0x5", 31, "0x280000000");
-  shiftLeftParsed("0x5", 55, "0x280000000000000");
-  shiftLeftParsed("0x5", 63, "-0x8000000000000000",
-      result_back_shifted: "-0x1");
-  shiftLeftParsed("0x5", 127, zero, result_back_shifted: zero);
-  shiftLeftParsed("0x8000001", 1, "0x10000002");
-  shiftLeftParsed("0x80000001", 1, "0x100000002");
-  shiftLeftParsed("0x8000000000000001", 1, "0x2", result_back_shifted: "0x1");
-  shiftLeftParsed("0x8000001", 29, "0x100000020000000");
-  shiftLeftParsed("0x80000001", 33, "0x200000000", result_back_shifted: "0x1");
-  shiftLeftParsed("0x8000000000000001", 65, zero, result_back_shifted: zero);
-  shiftLeftParsed("0x7fffffffffffffff", 1, "-0x2", result_back_shifted: "-0x1");
-  shiftLeftParsed("0x7fffffffffffffff", 29, "-0x20000000",
-      result_back_shifted: "-0x1");
-  shiftLeftParsed(minus_one, 0, minus_one);
-  shiftLeftParsed("-0x1234", 0, "-0x1234");
-  shiftLeftParsed(minus_one, 1, "-0x2");
-  shiftLeftParsed(minus_one, 28, "-0x10000000");
-  shiftLeftParsed(minus_one, 32, "-0x100000000");
-  shiftLeftParsed(minus_one, 64, zero, result_back_shifted: zero);
-  shiftLeftParsed("-0x5", 28, "-0x50000000");
-  shiftLeftParsed("-0x5", 32, "-0x500000000");
-  shiftLeftParsed("-0x5", 64, zero, result_back_shifted: zero);
-  shiftLeftParsed("-0x5", 27, "-0x28000000");
-  shiftLeftParsed("-0x5", 31, "-0x280000000");
-  shiftLeftParsed("-0x5", 63, "-0x8000000000000000",
-      result_back_shifted: minus_one);
-  shiftLeftParsed("-0x8000001", 1, "-0x10000002");
-  shiftLeftParsed("-0x80000001", 1, "-0x100000002");
-  shiftLeftParsed("-0x8000001", 29, "-0x100000020000000");
-  shiftLeftParsed("-0x80000001", 33, "-0x200000000",
-      result_back_shifted: "-0x1");
-  shiftLeftParsed("-0x7fffffffffffffff", 1, "0x2", result_back_shifted: "0x1");
-  shiftLeftParsed("-0x7fffffffffffffff", 65, zero, result_back_shifted: zero);
-  shiftLeftParsed("-0x8000000000000000", 1, zero, result_back_shifted: zero);
-  shiftLeftParsed("-0x8000000000000000", 29, zero, result_back_shifted: zero);
-}
-
-shiftRightParsed(String a, int amount, String result) {
-  int int_a = int.parse(a);
-  int int_result = int.parse(result);
-  int shifted = int_a >> amount;
-  Expect.equals(int_result, shifted);
-  String str_shifted = toHexString(shifted);
-  Expect.equals(result.toLowerCase(), str_shifted);
-}
-
-testRightShift() {
-  String zero = "0x0";
-  String one = "0x1";
-  String minus_one = "-0x1";
-
-  shiftRightParsed(one, 1, zero);
-  shiftRightParsed(minus_one, 1, minus_one);
-  shiftRightParsed("-0x2", 1, minus_one);
-  shiftRightParsed("0x12345678", 29, zero);
-  shiftRightParsed("-0x12345678", 29, minus_one);
-  shiftRightParsed("-0x12345678", 100, minus_one);
-  shiftRightParsed("0x5", 1, "0x2");
-  shiftRightParsed("0x5", 2, "0x1");
-  shiftRightParsed("-0x5", 1, "-0x3");
-  shiftRightParsed("-0x5", 2, "-0x2");
-  shiftRightParsed("0x10000001", 28, one);
-  shiftRightParsed("0x100000001", 32, one);
-  shiftRightParsed("0x1000000000000001", 60, one);
-  shiftRightParsed("0x1000000000000001", 64, zero);
-  shiftRightParsed("-0x10000001", 28, "-0x2");
-  shiftRightParsed("-0x100000001", 32, "-0x2");
-  shiftRightParsed("-0x1000000000000001", 64, minus_one);
-  shiftRightParsed("0x30000000", 29, one);
-  shiftRightParsed("0x300000000", 33, one);
-  shiftRightParsed("0x3000000000000000", 61, one);
-  shiftRightParsed("0x3000000000000000", 65, zero);
-  shiftRightParsed("-0x30000000", 29, "-0x2");
-  shiftRightParsed("-0x300000000", 33, "-0x2");
-  shiftRightParsed("-0x3000000000000000", 60, "-0x3");
-  shiftRightParsed("-0x3000000000000000", 65, minus_one);
-}
-
-bitAndParsed(String a, String b, String result) {
-  int int_a = int.parse(a);
-  int int_b = int.parse(b);
-  int int_result = int.parse(result);
-  int anded = int_a & int_b;
-  Expect.equals(int_result, anded);
-  String str_anded = toHexString(anded);
-  Expect.equals(result.toLowerCase(), str_anded);
-  int anded2 = int_b & int_a;
-  Expect.equals(int_result, anded2);
-  String str_anded2 = toHexString(anded2);
-  Expect.equals(result.toLowerCase(), str_anded2);
-}
-
-testBitAnd() {
-  String zero = "0x0";
-  String one = "0x1";
-  String minus_one = "-0x1";
-
-  bitAndParsed(one, zero, zero);
-  bitAndParsed(one, one, one);
-  bitAndParsed(minus_one, zero, zero);
-  bitAndParsed(minus_one, one, one);
-  bitAndParsed(minus_one, minus_one, minus_one);
-  bitAndParsed("0x5", "0x3", one);
-  bitAndParsed("0x5", minus_one, "0x5");
-  bitAndParsed("0x50000000", one, zero);
-  bitAndParsed("0x50000000", minus_one, "0x50000000");
-  bitAndParsed("0x500000000", one, zero);
-  bitAndParsed("0x500000000", minus_one, "0x500000000");
-  bitAndParsed("0x5000000000000000", one, zero);
-  bitAndParsed("0x5000000000000000", minus_one, "0x5000000000000000");
-  bitAndParsed("-0x50000000", "-0x50000000", "-0x50000000");
-  bitAndParsed("-0x500000000", "-0x500000000", "-0x500000000");
-  bitAndParsed("0x12345678", "0xFFFFFFF", "0x2345678");
-  bitAndParsed("0x123456789", "0xFFFFFFFF", "0x23456789");
-  bitAndParsed("-0x10000000", "0xFFFFFFF", "0x0");
-  bitAndParsed("-0x100000000", "0xFFFFFFFF", "0x0");
-  bitAndParsed("-0x10000001", "0xFFFFFFF", "0xFFFFFFF");
-  bitAndParsed("-0x100000001", "0xFFFFFFFF", "0xFFFFFFFF");
-  bitAndParsed("-0x10000001", "0x3FFFFFFF", "0x2FFFFFFF");
-  bitAndParsed("-0x100000001", "0x3FFFFFFFF", "0x2FFFFFFFF");
-  bitAndParsed("-0x100000000000000", "0xFFFFFFFFFFFFFF", "0x0");
-  bitAndParsed(
-      "-0x1000000000000000", "0xFFFFFFFFFFFFFFFF", "-0x1000000000000000");
-  bitAndParsed("-0x300000000000000", "0xFFFFFFFFFFFFFFF", "0xD00000000000000");
-  bitAndParsed(
-      "-0x3000000000000000", "0xFFFFFFFFFFFFFFFF", "-0x3000000000000000");
-  bitAndParsed("-0x10000000", "-0x10000000", "-0x10000000");
-  bitAndParsed("-0x100000000", "-0x100000000", "-0x100000000");
-  bitAndParsed(
-      "-0x100000000000000", "-0x100000000000000", "-0x100000000000000");
-  bitAndParsed(
-      "-0x1000000000000000", "-0x1000000000000000", "-0x1000000000000000");
-  bitAndParsed("-0x3", "-0x2", "-0x4");
-  bitAndParsed("-0x10000000", "-0x10000001", "-0x20000000");
-  bitAndParsed("-0x100000000", "-0x100000001", "-0x200000000");
-  bitAndParsed(
-      "-0x100000000000000", "-0x100000000000001", "-0x200000000000000");
-  bitAndParsed(
-      "-0x1000000000000000", "-0x1000000000000001", "-0x2000000000000000");
-}
-
-bitOrParsed(String a, String b, String result) {
-  int int_a = int.parse(a);
-  int int_b = int.parse(b);
-  int int_result = int.parse(result);
-  int ored = int_a | int_b;
-  Expect.equals(int_result, ored);
-  String str_ored = toHexString(ored);
-  Expect.equals(result.toLowerCase(), str_ored);
-  int ored2 = int_b | int_a;
-  Expect.equals(int_result, ored2);
-  String str_ored2 = toHexString(ored2);
-  Expect.equals(result.toLowerCase(), str_ored2);
-}
-
-testBitOr() {
-  String zero = "0x0";
-  String one = "0x1";
-  String minus_one = "-0x1";
-
-  bitOrParsed(one, zero, one);
-  bitOrParsed(one, one, one);
-  bitOrParsed(minus_one, zero, minus_one);
-  bitOrParsed(minus_one, one, minus_one);
-  bitOrParsed(minus_one, minus_one, minus_one);
-  bitOrParsed("-0x3", one, "-0x3");
-  bitOrParsed("0x5", "0x3", "0x7");
-  bitOrParsed("0x5", minus_one, minus_one);
-  bitOrParsed("0x5", zero, "0x5");
-  bitOrParsed("0x50000000", one, "0x50000001");
-  bitOrParsed("0x50000000", minus_one, minus_one);
-  bitOrParsed("0x500000000", one, "0x500000001");
-  bitOrParsed("0x500000000", minus_one, minus_one);
-  bitOrParsed("0x5000000000000000", one, "0x5000000000000001");
-  bitOrParsed("0x5000000000000000", minus_one, minus_one);
-  bitOrParsed("-0x50000000", "-0x50000000", "-0x50000000");
-  bitOrParsed("-0x500000000", "-0x500000000", "-0x500000000");
-  bitOrParsed("0x12345678", "0xFFFFFFF", "0x1FFFFFFF");
-  bitOrParsed("0x123456789", "0xFFFFFFFF", "0x1FFFFFFFF");
-  bitOrParsed("-0x10000000", "0xFFFFFFF", "-0x1");
-  bitOrParsed("-0x100000000", "0xFFFFFFFF", "-0x1");
-  bitOrParsed("-0x10000001", "0xFFFFFFF", "-0x10000001");
-  bitOrParsed("-0x100000001", "0xFFFFFFFF", "-0x100000001");
-  bitOrParsed("-0x10000001", "0x3FFFFFFF", "-0x1");
-  bitOrParsed("-0x100000001", "0x3FFFFFFFF", "-0x1");
-  bitOrParsed("-0x1000000000000001", "0x3FFFFFFFFFFFFFFF", "-0x1");
-  bitOrParsed("-0x100000000000000", "0xFFFFFFFFFFFFFF", "-0x1");
-  bitOrParsed("-0x1000000000000000", "0xFFFFFFFFFFFFFFF", "-0x1");
-  bitOrParsed("-0x300000000000000", "0xFFFFFFFFFFFFFFF", "-0x1");
-  bitOrParsed("-0x3000000000000000", "0xFFFFFFFFFFFFFFFF", "-0x1");
-  bitOrParsed("-0x10000000", "-0x10000000", "-0x10000000");
-  bitOrParsed("-0x100000000", "-0x100000000", "-0x100000000");
-  bitOrParsed("-0x100000000000000", "-0x100000000000000", "-0x100000000000000");
-  bitOrParsed(
-      "-0x1000000000000000", "-0x1000000000000000", "-0x1000000000000000");
-  bitOrParsed("-0x10000000", "-0x10000001", "-0x1");
-  bitOrParsed("-0x100000000", "-0x100000001", "-0x1");
-  bitOrParsed("-0x100000000000000", "-0x100000000000001", "-0x1");
-  bitOrParsed("-0x1000000000000000", "-0x1000000000000001", "-0x1");
-  bitOrParsed("-0x1000000000000000", "-0x1", "-0x1");
-}
-
-bitXorParsed(String a, String b, String result) {
-  int int_a = int.parse(a);
-  int int_b = int.parse(b);
-  int int_result = int.parse(result);
-  int xored = int_a ^ int_b;
-  Expect.equals(int_result, xored);
-  String str_xored = toHexString(xored);
-  Expect.equals(result.toLowerCase(), str_xored);
-  int xored2 = int_b ^ int_a;
-  Expect.equals(int_result, xored2);
-  String str_xored2 = toHexString(xored2);
-  Expect.equals(result.toLowerCase(), str_xored2);
-  int xored3 = int_a ^ xored2;
-  Expect.equals(int_b, xored3);
-  String str_xored3 = toHexString(xored3);
-  Expect.equals(b.toLowerCase(), str_xored3);
-}
-
-testBitXor() {
-  String zero = "0x0";
-  String one = "0x1";
-  String minus_one = "-0x1";
-
-  bitXorParsed(one, zero, one);
-  bitXorParsed(one, one, zero);
-  bitXorParsed(minus_one, zero, minus_one);
-  bitXorParsed(minus_one, one, "-0x2");
-  bitXorParsed(minus_one, minus_one, zero);
-  bitXorParsed("0x5", "0x3", "0x6");
-  bitXorParsed("0x5", minus_one, "-0x6");
-  bitXorParsed("0x5", zero, "0x5");
-  bitXorParsed(minus_one, "-0x8", "0x7");
-  bitXorParsed("0x50000000", one, "0x50000001");
-  bitXorParsed("0x50000000", minus_one, "-0x50000001");
-  bitXorParsed("0x500000000", one, "0x500000001");
-  bitXorParsed("0x500000000", minus_one, "-0x500000001");
-  bitXorParsed("0x5000000000000000", one, "0x5000000000000001");
-  bitXorParsed("0x5000000000000000", minus_one, "-0x5000000000000001");
-  bitXorParsed("-0x50000000", "-0x50000000", zero);
-  bitXorParsed("-0x500000000", "-0x500000000", zero);
-  bitXorParsed("0x12345678", "0xFFFFFFF", "0x1DCBA987");
-  bitXorParsed("0x123456789", "0xFFFFFFFF", "0x1DCBA9876");
-  bitXorParsed("-0x10000000", "0xFFFFFFF", "-0x1");
-  bitXorParsed("-0x100000000", "0xFFFFFFFF", "-0x1");
-  bitXorParsed("-0x10000001", "0xFFFFFFF", "-0x20000000");
-  bitXorParsed("-0x100000001", "0xFFFFFFFF", "-0x200000000");
-  bitXorParsed("-0x10000001", "0x3FFFFFFF", "-0x30000000");
-  bitXorParsed("-0x100000001", "0x3FFFFFFFF", "-0x300000000");
-  bitXorParsed(
-      "-0x1000000000000001", "0x3FFFFFFFFFFFFFFF", "-0x3000000000000000");
-  bitXorParsed("-0x100000000000000", "0xFFFFFFFFFFFFFF", "-0x1");
-  bitXorParsed("-0x1000000000000000", "0xFFFFFFFFFFFFFFF", "-0x1");
-  bitXorParsed("-0x300000000000000", "0xFFFFFFFFFFFFFFF", "-0xD00000000000001");
-  bitXorParsed("-0x3000000000000000", "-0x1", "0x2FFFFFFFFFFFFFFF");
-  bitXorParsed("-0x10000000", "-0x10000000", zero);
-  bitXorParsed("-0x100000000", "-0x100000000", zero);
-  bitXorParsed("-0x100000000000000", "-0x100000000000000", zero);
-  bitXorParsed("-0x1000000000000000", "-0x1000000000000000", zero);
-  bitXorParsed("-0x10000000", "-0x10000001", "0x1FFFFFFF");
-  bitXorParsed("-0x100000000", "-0x100000001", "0x1FFFFFFFF");
-  bitXorParsed("-0x100000000000000", "-0x100000000000001", "0x1FFFFFFFFFFFFFF");
-  bitXorParsed(
-      "-0x1000000000000000", "-0x1000000000000001", "0x1FFFFFFFFFFFFFFF");
-}
-
-bitNotParsed(String a, String result) {
-  int int_a = int.parse(a);
-  int int_result = int.parse(result);
-  int inverted = ~int_a;
-  Expect.equals(int_result, inverted);
-  String str_inverted = toHexString(inverted);
-  Expect.equals(result.toLowerCase(), str_inverted);
-  int back = ~inverted;
-  Expect.equals(int_a, back);
-  String str_back = toHexString(back);
-  Expect.equals(a.toLowerCase(), str_back);
-}
-
-testBitNot() {
-  String zero = "0x0";
-  String one = "0x1";
-  String minus_one = "-0x1";
-
-  bitNotParsed(zero, minus_one);
-  bitNotParsed(one, "-0x2");
-  bitNotParsed("0x5", "-0x6");
-  bitNotParsed("0x50000000", "-0x50000001");
-  bitNotParsed("0xFFFFFFF", "-0x10000000");
-  bitNotParsed("0xFFFFFFFF", "-0x100000000");
-  bitNotParsed("0xFFFFFFFFFFFFFF", "-0x100000000000000");
-  bitNotParsed("0x7FFFFFFFFFFFFFFF", "-0x8000000000000000");
-  bitNotParsed("-0x1", "0x0");
-}
-
-main() {
-  testAddSub();
-  testLeftShift();
-  testRightShift();
-  testBitAnd();
-  testBitOr();
-  testBitXor();
-  testBitNot();
-}
diff --git a/tests/corelib_2/integer_parsed_div_rem_vm_test.dart b/tests/corelib_2/integer_parsed_div_rem_vm_test.dart
deleted file mode 100644
index d6c1e11a74d..00000000000
--- a/tests/corelib_2/integer_parsed_div_rem_vm_test.dart
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing integers with and without intrinsics.
-// VMOptions=
-// VMOptions=--no_intrinsify
-
-library integer_arithmetic_test;
-
-import "package:expect/expect.dart";
-
-divRemParsed(String a, String b, String quotient, String remainder) {
-  int int_a = int.parse(a);
-  int int_b = int.parse(b);
-  int int_quotient = int.parse(quotient);
-  int int_remainder = int.parse(remainder);
-  int computed_quotient = int_a ~/ int_b;
-  Expect.equals(int_quotient, computed_quotient);
-  String str_quotient = computed_quotient >= 0
-      ? "0x${computed_quotient.toRadixString(16)}"
-      : "-0x${computed_quotient.toRadixString(16).substring(1)}";
-  Expect.equals(quotient.toLowerCase(), str_quotient);
-  int computed_remainder = int_a.remainder(int_b);
-  Expect.equals(int_remainder, computed_remainder);
-  String str_remainder = computed_remainder >= 0
-      ? "0x${computed_remainder.toRadixString(16)}"
-      : "-0x${computed_remainder.toRadixString(16).substring(1)}";
-  Expect.equals(remainder.toLowerCase(), str_remainder);
-}
-
-testDivideRemainder() {
-  String zero = "0x0";
-  String one = "0x1";
-  String minus_one = "-0x1";
-
-  divRemParsed(one, one, one, zero);
-  divRemParsed(zero, one, zero, zero);
-  divRemParsed(minus_one, one, minus_one, zero);
-  divRemParsed(one, "0x2", zero, one);
-  divRemParsed(minus_one, "0x7", zero, minus_one);
-  divRemParsed("0xB", "0x7", one, "0x4");
-  divRemParsed("0x12345678", "0x7", "0x299C335", "0x5");
-  divRemParsed("-0x12345678", "0x7", "-0x299C335", "-0x5");
-  divRemParsed("0x12345678", "-0x7", "-0x299C335", "0x5");
-  divRemParsed("-0x12345678", "-0x7", "0x299C335", "-0x5");
-  divRemParsed("0x7", "0x12345678", zero, "0x7");
-  divRemParsed("-0x7", "0x12345678", zero, "-0x7");
-  divRemParsed("-0x7", "-0x12345678", zero, "-0x7");
-  divRemParsed("0x7", "-0x12345678", zero, "0x7");
-  divRemParsed("0x12345678", "0x7", "0x299C335", "0x5");
-  divRemParsed("-0x12345678", "0x7", "-0x299C335", "-0x5");
-  divRemParsed("0x12345678", "-0x7", "-0x299C335", "0x5");
-  divRemParsed("-0x12345678", "-0x7", "0x299C335", "-0x5");
-  divRemParsed("9223372036854775807", "0x7", "0x1249249249249249", "0x0");
-  divRemParsed("9223372036854775807", "-0x7", "-0x1249249249249249", "0x0");
-  divRemParsed("-9223372036854775807", "0x7", "-0x1249249249249249", "0x0");
-  divRemParsed("-9223372036854775807", "-0x7", "0x1249249249249249", "0x0");
-  divRemParsed("-9223372036854775808", "-1", "-0x8000000000000000", "0x0"); //# 01: ok
-  divRemParsed("-9223372036854775808", "0x7", "-0x1249249249249249", "-0x1");
-  divRemParsed("-9223372036854775808", "-0x7", "0x1249249249249249", "-0x1");
-}
-
-main() {
-  testDivideRemainder();
-}
diff --git a/tests/corelib_2/integer_parsed_mul_div_vm_test.dart b/tests/corelib_2/integer_parsed_mul_div_vm_test.dart
deleted file mode 100644
index 2eaa655a214..00000000000
--- a/tests/corelib_2/integer_parsed_mul_div_vm_test.dart
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing integers with and without intrinsics.
-// VMOptions=
-// VMOptions=--no_intrinsify
-
-library integer_arithmetic_test;
-
-import "package:expect/expect.dart";
-
-mulDivParsed(String a, String b, String product,
-    {String expected_quotient1, String expected_quotient2}) {
-  int int_a = int.parse(a);
-  int int_b = int.parse(b);
-  int int_product = int.parse(product);
-  int computed_product = int_a * int_b;
-  Expect.equals(int_product, computed_product);
-  String str_product = computed_product >= 0
-      ? "0x${computed_product.toRadixString(16)}"
-      : "-0x${(-computed_product).toRadixString(16)}";
-  Expect.equals(product.toLowerCase(), str_product);
-  int computed_product2 = int_b * int_a;
-  Expect.equals(int_product, computed_product2);
-  String str_product2 = computed_product2 >= 0
-      ? "0x${computed_product2.toRadixString(16)}"
-      : "-0x${(-computed_product2).toRadixString(16)}";
-  Expect.equals(product.toLowerCase(), str_product2);
-
-  if (int_a != 0) {
-    expected_quotient1 ??= b;
-    int int_expected_quotient1 = int.parse(expected_quotient1);
-    int computed_quotient1 = int_product ~/ int_a;
-    Expect.equals(int_expected_quotient1, computed_quotient1);
-    String str_quotient1 = computed_quotient1 >= 0
-        ? "0x${computed_quotient1.toRadixString(16)}"
-        : "-0x${(-computed_quotient1).toRadixString(16)}";
-    Expect.equals(expected_quotient1.toLowerCase(), str_quotient1);
-  }
-
-  if (int_b != 0) {
-    expected_quotient2 ??= a;
-    int int_expected_quotient2 = int.parse(expected_quotient2);
-    int computed_quotient2 = int_product ~/ int_b;
-    Expect.equals(int_expected_quotient2, computed_quotient2);
-    String str_quotient2 = computed_quotient2 >= 0
-        ? "0x${computed_quotient2.toRadixString(16)}"
-        : "-0x${(-computed_quotient2).toRadixString(16)}";
-    Expect.equals(expected_quotient2.toLowerCase(), str_quotient2);
-  }
-}
-
-testMultiplyDivide() {
-  String zero = "0x0";
-  String one = "0x1";
-  String minus_one = "-0x1";
-
-  mulDivParsed(zero, zero, zero);
-  mulDivParsed(one, one, one);
-  mulDivParsed(one, zero, zero);
-  mulDivParsed(zero, one, zero);
-  mulDivParsed(one, minus_one, minus_one);
-  mulDivParsed(minus_one, minus_one, one);
-  mulDivParsed("0x42", one, "0x42");
-  mulDivParsed("0x42", "0x2", "0x84");
-  mulDivParsed("0xFFFF", "0x2", "0x1FFFE");
-  mulDivParsed("0x3", "0x5", "0xF");
-  mulDivParsed("0xFFFFF", "0x5", "0x4FFFFB");
-  mulDivParsed("0xFFFFFFF", "0x5", "0x4FFFFFFB");
-  mulDivParsed("0xFFFFFFFF", "0x5", "0x4FFFFFFFB");
-  mulDivParsed("0x7FFFFFFFFFFFFFFF", "0x5", "0x7FFFFFFFFFFFFFFB",
-      expected_quotient1: zero, expected_quotient2: "0x1999999999999998");
-  mulDivParsed("0x7FFFFFFFFFFFFFFF", "0x3039", "0x7FFFFFFFFFFFCFC7",
-      expected_quotient1: zero, expected_quotient2: "0x2A783BE38C73D");
-  mulDivParsed("0x10000001", "0x5", "0x50000005");
-}
-
-main() {
-  testMultiplyDivide();
-}
diff --git a/tests/corelib_2/integer_to_radix_string_test.dart b/tests/corelib_2/integer_to_radix_string_test.dart
deleted file mode 100644
index 908b1613982..00000000000
--- a/tests/corelib_2/integer_to_radix_string_test.dart
+++ /dev/null
@@ -1,89 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  // Test that we accept radix 2 to 36 and that we use lower-case
-  // letters.
-  var expected = [
-    '0',
-    '1',
-    '2',
-    '3',
-    '4',
-    '5',
-    '6',
-    '7',
-    '8',
-    '9',
-    'a',
-    'b',
-    'c',
-    'd',
-    'e',
-    'f',
-    'g',
-    'h',
-    'i',
-    'j',
-    'k',
-    'l',
-    'm',
-    'n',
-    'o',
-    'p',
-    'q',
-    'r',
-    's',
-    't',
-    'u',
-    'v',
-    'w',
-    'x',
-    'y',
-    'z'
-  ];
-  for (var radix = 2; radix <= 36; radix++) {
-    for (var i = 0; i < radix; i++) {
-      Expect.equals(expected[i], i.toRadixString(radix));
-    }
-  }
-
-  var illegalRadices = [-1, 0, 1, 37];
-  for (var radix in illegalRadices) {
-    try {
-      42.toRadixString(radix);
-      Expect.fail("Exception expected");
-    } on ArgumentError catch (e) {
-      // Nothing to do.
-    }
-  }
-
-  // Try large numbers (regression test for issue 15316).
-  var bignums = [
-    0x80000000,
-    0x100000000,
-    0x10000000000000,
-    0x10000000000001, // 53 significant bits.
-    0x20000000000000,
-    0x20000000000002,
-    0x1000000000000000,
-    0x1000000000000100,
-    0x2000000000000000,
-    0x2000000000000200,
-    0x8000000000000000, //# 01: ok
-    0x8000000000000800, //# 02: ok
-  ];
-  for (var bignum in bignums) {
-    for (int radix = 2; radix <= 36; radix++) {
-      String digits = bignum.toRadixString(radix);
-      int result = int.parse(digits, radix: radix);
-      Expect.equals(
-          bignum, result, "${bignum.toRadixString(16)} -> $digits/$radix");
-    }
-  }
-}
diff --git a/tests/corelib_2/integer_to_string_test.dart b/tests/corelib_2/integer_to_string_test.dart
deleted file mode 100644
index b33eb9d2642..00000000000
--- a/tests/corelib_2/integer_to_string_test.dart
+++ /dev/null
@@ -1,86 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  /// Test that converting [value] to a string gives [expect].
-  /// Also test that `-value` gives `"-"+expect`.
-  test(int value, String expect) {
-    Expect.equals(expect, value.toString());
-    Expect.equals(expect, "$value");
-    Expect.equals(expect, (new StringBuffer()..write(value)).toString());
-    if (value <= 0) return;
-    expect = "-$expect";
-    value = -value;
-    Expect.equals(expect, value.toString());
-    Expect.equals(expect, "$value");
-    Expect.equals(expect, (new StringBuffer()..write(value)).toString());
-  }
-
-  // Very simple tests.
-  test(0, "0");
-  test(1, "1");
-  test(2, "2");
-  test(5, "5");
-
-  // Binary special cases.
-
-  // ~2^30.
-  test(0x3fffffff, "1073741823");
-  test(0x40000000, "1073741824");
-  test(0x40000001, "1073741825");
-  // ~2^31.
-  test(0x7fffffff, "2147483647");
-  test(0x80000000, "2147483648");
-  test(0x80000001, "2147483649");
-  // ~2^32.
-  test(0xffffffff, "4294967295");
-  test(0x100000000, "4294967296");
-  test(0x100000001, "4294967297");
-
-  // ~2^51.
-  test(0x7ffffffffffff, "2251799813685247");
-  test(0x8000000000000, "2251799813685248");
-  test(0x8000000000001, "2251799813685249");
-  // ~2^52.
-  test(0xfffffffffffff, "4503599627370495");
-  test(0x10000000000000, "4503599627370496");
-  test(0x10000000000001, "4503599627370497");
-  // ~2^53.
-  test(0x1fffffffffffff, "9007199254740991");
-  test(0x20000000000000, "9007199254740992");
-  test(0x20000000000001, "9007199254740993"); //        //# 01: ok
-  // ~2^62.
-  test(0x3fffffffffffffff, "4611686018427387903"); //   //# 01: continued
-  test(0x4000000000000000, "4611686018427387904"); //   //# 01: continued
-  test(0x4000000000000001, "4611686018427387905"); //   //# 01: continued
-  // ~2^63.
-  test(0x7fffffffffffffff, "9223372036854775807"); //   //# 01: continued
-  test(0x8000000000000000, "-9223372036854775808"); //  //# 01: continued
-  test(0x8000000000000001, "-9223372036854775807"); //  //# 01: continued
-  // ~2^64.
-  test(0xffffffffffffffff, "-1"); //                    //# 01: continued
-
-  // Decimal special cases.
-
-  int number = 10;
-  // Numbers 99..99, 100...00, and 100..01 up to 18 digits.
-  for (int i = 1; i < 15; i++) {
-    // Works in dart2js up to 10^15.
-    test(number - 1, "9" * i);
-    test(number, "1" + "0" * i);
-    test(number + 1, "1" + "0" * (i - 1) + "1");
-    number *= 10;
-  }
-  // Fails to represent exactly in dart2js.
-  for (int i = 15; i < 19; i++) { //                    //# 01: continued
-    test(number - 1, "9" * i); //                       //# 01: continued
-    test(number, "1" + "0" * i); //                     //# 01: continued
-    test(number + 1, "1" + "0" * (i - 1) + "1"); //     //# 01: continued
-    number *= 10; //                                    //# 01: continued
-  } //                                                  //# 01: continued
-}
diff --git a/tests/corelib_2/invocation_test.dart b/tests/corelib_2/invocation_test.dart
deleted file mode 100644
index 349339897b5..00000000000
--- a/tests/corelib_2/invocation_test.dart
+++ /dev/null
@@ -1,422 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Tests the constructors of the Invocation class.
-
-main() {
-  {
-    var name = "getter";
-    var invocation = new Invocation.getter(#name);
-    Expect.isTrue(invocation.isGetter, "$name:isGetter");
-    Expect.isFalse(invocation.isSetter, "$name:isSetter");
-    Expect.isTrue(invocation.isAccessor, "$name:isAccessor");
-    Expect.isFalse(invocation.isMethod, "$name:isMethod");
-    Expect.equals(#name, invocation.memberName, "$name:name");
-    Expect.listEquals([], invocation.typeArguments, "$name:types");
-    Expect.listEquals([], invocation.positionalArguments, "$name:pos");
-    Expect.mapEquals({}, invocation.namedArguments, "$name: named");
-    checkUnmodifiableList("$name types", invocation.typeArguments);
-    checkUnmodifiableList("$name positional", invocation.positionalArguments);
-    checkUnmodifiableMap("$name named", invocation.namedArguments);
-  }
-  {
-    var name = "setter";
-    var argument = new Object();
-    var invocation = new Invocation.setter(const Symbol("name="), argument);
-    Expect.isFalse(invocation.isGetter, "$name:isGetter");
-    Expect.isTrue(invocation.isSetter, "$name:isSetter");
-    Expect.isTrue(invocation.isAccessor, "$name:isAccessor");
-    Expect.isFalse(invocation.isMethod, "$name:isMethod");
-    Expect.equals(const Symbol("name="), invocation.memberName, "$name:name");
-    Expect.listEquals([], invocation.typeArguments, "$name:types");
-    Expect.listEquals([argument], invocation.positionalArguments, "$name:pos");
-    Expect.mapEquals({}, invocation.namedArguments, "$name: named");
-    checkUnmodifiableList("$name types", invocation.typeArguments);
-    checkUnmodifiableList("$name positional", invocation.positionalArguments);
-    checkUnmodifiableMap("$name named", invocation.namedArguments);
-  }
-  {
-    var name = ".name()";
-    var invocation = new Invocation.method(#name, []);
-    Expect.isFalse(invocation.isGetter, "$name:isGetter");
-    Expect.isFalse(invocation.isSetter, "$name:isSetter");
-    Expect.isFalse(invocation.isAccessor, "$name:isAccessor");
-    Expect.isTrue(invocation.isMethod, "$name:isMethod");
-    Expect.equals(#name, invocation.memberName, "$name:name");
-    Expect.listEquals([], invocation.typeArguments, "$name:types");
-    Expect.listEquals([], invocation.positionalArguments, "$name:pos");
-    Expect.mapEquals({}, invocation.namedArguments, "$name: named");
-    checkUnmodifiableList("$name types", invocation.typeArguments);
-    checkUnmodifiableList("$name positional", invocation.positionalArguments);
-    checkUnmodifiableMap("$name named", invocation.namedArguments);
-
-    expectInvocation("$name:", invocation, new Invocation.method(#name, null));
-    expectInvocation(
-        "$name:", invocation, new Invocation.method(#name, [], null));
-    expectInvocation(
-        "$name:", invocation, new Invocation.method(#name, [], {}));
-
-    expectInvocation(
-        "$name:", invocation, new Invocation.genericMethod(#name, [], []));
-    expectInvocation(
-        "$name:", invocation, new Invocation.genericMethod(#name, [], null));
-    expectInvocation("$name:", invocation,
-        new Invocation.genericMethod(#name, [], [], null));
-    expectInvocation(
-        "$name:", invocation, new Invocation.genericMethod(#name, [], [], {}));
-    expectInvocation(
-        "$name:", invocation, new Invocation.genericMethod(#name, null, []));
-    expectInvocation(
-        "$name:", invocation, new Invocation.genericMethod(#name, null, null));
-    expectInvocation("$name:", invocation,
-        new Invocation.genericMethod(#name, null, [], null));
-    expectInvocation("$name:", invocation,
-        new Invocation.genericMethod(#name, null, [], {}));
-  }
-  {
-    var name = ".name(a)";
-    var argument = new Object();
-    var invocation = new Invocation.method(#name, [argument]);
-    Expect.isFalse(invocation.isGetter, "$name:isGetter");
-    Expect.isFalse(invocation.isSetter, "$name:isSetter");
-    Expect.isFalse(invocation.isAccessor, "$name:isAccessor");
-    Expect.isTrue(invocation.isMethod, "$name:isMethod");
-    Expect.equals(#name, invocation.memberName, "$name:name");
-    Expect.listEquals([], invocation.typeArguments, "$name:types");
-    Expect.listEquals([argument], invocation.positionalArguments, "$name:pos");
-    Expect.mapEquals({}, invocation.namedArguments, "$name: named");
-    checkUnmodifiableList("$name types", invocation.typeArguments);
-    checkUnmodifiableList("$name positional", invocation.positionalArguments);
-    checkUnmodifiableMap("$name named", invocation.namedArguments);
-
-    expectInvocation(
-        "$name:", invocation, new Invocation.method(#name, [argument], null));
-    expectInvocation(
-        "$name:", invocation, new Invocation.method(#name, [argument], {}));
-
-    expectInvocation("$name:", invocation,
-        new Invocation.genericMethod(#name, [], [argument], null));
-    expectInvocation("$name:", invocation,
-        new Invocation.genericMethod(#name, [], [argument], {}));
-    expectInvocation("$name:", invocation,
-        new Invocation.genericMethod(#name, null, [argument], null));
-    expectInvocation("$name:", invocation,
-        new Invocation.genericMethod(#name, null, [argument], {}));
-  }
-  {
-    var name = ".name(a,b)";
-    var argument = new Object();
-    var argument2 = new Object();
-    var invocation = new Invocation.method(#name, [argument, argument2]);
-    Expect.isFalse(invocation.isGetter, "$name:isGetter");
-    Expect.isFalse(invocation.isSetter, "$name:isSetter");
-    Expect.isFalse(invocation.isAccessor, "$name:isAccessor");
-    Expect.isTrue(invocation.isMethod, "$name:isMethod");
-    Expect.equals(#name, invocation.memberName, "$name:name");
-    Expect.listEquals([], invocation.typeArguments, "$name:types");
-    Expect.listEquals(
-        [argument, argument2], invocation.positionalArguments, "$name:pos");
-    Expect.mapEquals({}, invocation.namedArguments, "$name: named");
-    checkUnmodifiableList("$name types", invocation.typeArguments);
-    checkUnmodifiableList("$name positional", invocation.positionalArguments);
-    checkUnmodifiableMap("$name named", invocation.namedArguments);
-
-    expectInvocation("$name:", invocation,
-        new Invocation.method(#name, [argument, argument2], null));
-    expectInvocation("$name:", invocation,
-        new Invocation.method(#name, [argument, argument2], {}));
-
-    expectInvocation("$name:", invocation,
-        new Invocation.genericMethod(#name, [], [argument, argument2], null));
-    expectInvocation("$name:", invocation,
-        new Invocation.genericMethod(#name, [], [argument, argument2], {}));
-    expectInvocation("$name:", invocation,
-        new Invocation.genericMethod(#name, null, [argument, argument2], null));
-    expectInvocation("$name:", invocation,
-        new Invocation.genericMethod(#name, null, [argument, argument2], {}));
-  }
-  {
-    var name = ".name(a,b:)";
-    var argument = new Object();
-    var argument2 = new Object();
-    var invocation =
-        new Invocation.method(#name, [argument], {#arg: argument2});
-    Expect.isFalse(invocation.isGetter, "$name:isGetter");
-    Expect.isFalse(invocation.isSetter, "$name:isSetter");
-    Expect.isFalse(invocation.isAccessor, "$name:isAccessor");
-    Expect.isTrue(invocation.isMethod, "$name:isMethod");
-    Expect.equals(#name, invocation.memberName, "$name:name");
-    Expect.listEquals([], invocation.typeArguments, "$name:types");
-    Expect.listEquals([argument], invocation.positionalArguments, "$name:pos");
-    Expect.mapEquals(
-        {#arg: argument2}, invocation.namedArguments, "$name: named");
-    checkUnmodifiableList("$name types", invocation.typeArguments);
-    checkUnmodifiableList("$name positional", invocation.positionalArguments);
-    checkUnmodifiableMap("$name named", invocation.namedArguments);
-
-    expectInvocation(
-        "$name:",
-        invocation,
-        new Invocation.genericMethod(
-            #name, null, [argument], {#arg: argument2}));
-  }
-  {
-    var name = ".name(a:,b:)";
-    var argument = new Object();
-    var argument2 = new Object();
-    var invocation =
-        new Invocation.method(#name, [], {#arg: argument, #arg2: argument2});
-    Expect.isFalse(invocation.isGetter, "$name:isGetter");
-    Expect.isFalse(invocation.isSetter, "$name:isSetter");
-    Expect.isFalse(invocation.isAccessor, "$name:isAccessor");
-    Expect.isTrue(invocation.isMethod, "$name:isMethod");
-    Expect.equals(#name, invocation.memberName, "$name:name");
-    Expect.listEquals([], invocation.typeArguments, "$name:types");
-    Expect.listEquals([], invocation.positionalArguments, "$name:pos");
-    Expect.mapEquals({#arg: argument, #arg2: argument2},
-        invocation.namedArguments, "$name: named");
-    checkUnmodifiableList("$name types", invocation.typeArguments);
-    checkUnmodifiableList("$name positional", invocation.positionalArguments);
-    checkUnmodifiableMap("$name named", invocation.namedArguments);
-
-    expectInvocation("$name:", invocation,
-        new Invocation.method(#name, null, {#arg: argument, #arg2: argument2}));
-    expectInvocation(
-        "$name:",
-        invocation,
-        new Invocation.genericMethod(
-            #name, null, [], {#arg: argument, #arg2: argument2}));
-    expectInvocation(
-        "$name:",
-        invocation,
-        new Invocation.genericMethod(
-            #name, null, null, {#arg: argument, #arg2: argument2}));
-  }
-  {
-    var name = ".name<i>()";
-    var invocation = new Invocation.genericMethod(#name, [int], []);
-    Expect.isFalse(invocation.isGetter, "$name:isGetter");
-    Expect.isFalse(invocation.isSetter, "$name:isSetter");
-    Expect.isFalse(invocation.isAccessor, "$name:isAccessor");
-    Expect.isTrue(invocation.isMethod, "$name:isMethod");
-    Expect.equals(#name, invocation.memberName, "$name:name");
-    Expect.listEquals([int], invocation.typeArguments, "$name:types");
-    Expect.listEquals([], invocation.positionalArguments, "$name:pos");
-    Expect.mapEquals({}, invocation.namedArguments, "$name: named");
-    checkUnmodifiableList("$name types", invocation.typeArguments);
-    checkUnmodifiableList("$name positional", invocation.positionalArguments);
-    checkUnmodifiableMap("$name named", invocation.namedArguments);
-
-    expectInvocation(
-        "$name:", invocation, new Invocation.genericMethod(#name, [int], null));
-    expectInvocation("$name:", invocation,
-        new Invocation.genericMethod(#name, [int], [], null));
-    expectInvocation("$name:", invocation,
-        new Invocation.genericMethod(#name, [int], null, null));
-    expectInvocation("$name:", invocation,
-        new Invocation.genericMethod(#name, [int], [], {}));
-    expectInvocation("$name:", invocation,
-        new Invocation.genericMethod(#name, [int], null, {}));
-  }
-  {
-    var name = ".name<i>(a)";
-    var argument = new Object();
-    var invocation = new Invocation.genericMethod(#name, [int], [argument]);
-    Expect.isFalse(invocation.isGetter, "$name:isGetter");
-    Expect.isFalse(invocation.isSetter, "$name:isSetter");
-    Expect.isFalse(invocation.isAccessor, "$name:isAccessor");
-    Expect.isTrue(invocation.isMethod, "$name:isMethod");
-    Expect.equals(#name, invocation.memberName, "$name:name");
-    Expect.listEquals([int], invocation.typeArguments, "$name:types");
-    Expect.listEquals([argument], invocation.positionalArguments, "$name:pos");
-    Expect.mapEquals({}, invocation.namedArguments, "$name: named");
-    checkUnmodifiableList("$name types", invocation.typeArguments);
-    checkUnmodifiableList("$name positional", invocation.positionalArguments);
-    checkUnmodifiableMap("$name named", invocation.namedArguments);
-
-    expectInvocation("$name:", invocation,
-        new Invocation.genericMethod(#name, [int], [argument], null));
-    expectInvocation("$name:", invocation,
-        new Invocation.genericMethod(#name, [int], [argument], {}));
-  }
-  {
-    var name = ".name<i>(a,b)";
-    var argument = new Object();
-    var argument2 = new Object();
-    var invocation =
-        new Invocation.genericMethod(#name, [int], [argument, argument2]);
-    Expect.isFalse(invocation.isGetter, "$name:isGetter");
-    Expect.isFalse(invocation.isSetter, "$name:isSetter");
-    Expect.isFalse(invocation.isAccessor, "$name:isAccessor");
-    Expect.isTrue(invocation.isMethod, "$name:isMethod");
-    Expect.equals(#name, invocation.memberName, "$name:name");
-    Expect.listEquals([int], invocation.typeArguments, "$name:types");
-    Expect.listEquals(
-        [argument, argument2], invocation.positionalArguments, "$name:pos");
-    Expect.mapEquals({}, invocation.namedArguments, "$name: named");
-    checkUnmodifiableList("$name types", invocation.typeArguments);
-    checkUnmodifiableList("$name positional", invocation.positionalArguments);
-    checkUnmodifiableMap("$name named", invocation.namedArguments);
-
-    expectInvocation(
-        "$name:",
-        invocation,
-        new Invocation.genericMethod(
-            #name, [int], [argument, argument2], null));
-    expectInvocation("$name:", invocation,
-        new Invocation.genericMethod(#name, [int], [argument, argument2], {}));
-  }
-  {
-    var name = ".name<i>(a,b:)";
-    var argument = new Object();
-    var argument2 = new Object();
-    var invocation = new Invocation.genericMethod(
-        #name, [int], [argument], {#arg: argument2});
-    Expect.isFalse(invocation.isGetter, "$name:isGetter");
-    Expect.isFalse(invocation.isSetter, "$name:isSetter");
-    Expect.isFalse(invocation.isAccessor, "$name:isAccessor");
-    Expect.isTrue(invocation.isMethod, "$name:isMethod");
-    Expect.equals(#name, invocation.memberName, "$name:name");
-    Expect.listEquals([int], invocation.typeArguments, "$name:types");
-    Expect.listEquals([argument], invocation.positionalArguments, "$name:pos");
-    Expect.mapEquals(
-        {#arg: argument2}, invocation.namedArguments, "$name: named");
-    checkUnmodifiableList("$name types", invocation.typeArguments);
-    checkUnmodifiableList("$name positional", invocation.positionalArguments);
-    checkUnmodifiableMap("$name named", invocation.namedArguments);
-  }
-  {
-    var name = ".name<i>(a:,b:)";
-    var argument = new Object();
-    var argument2 = new Object();
-    var invocation = new Invocation.genericMethod(
-        #name, [int], [], {#arg: argument, #arg2: argument2});
-    Expect.isFalse(invocation.isGetter, "$name:isGetter");
-    Expect.isFalse(invocation.isSetter, "$name:isSetter");
-    Expect.isFalse(invocation.isAccessor, "$name:isAccessor");
-    Expect.isTrue(invocation.isMethod, "$name:isMethod");
-    Expect.equals(#name, invocation.memberName, "$name:name");
-    Expect.listEquals([int], invocation.typeArguments, "$name:types");
-    Expect.listEquals([], invocation.positionalArguments, "$name:pos");
-    Expect.mapEquals({#arg: argument, #arg2: argument2},
-        invocation.namedArguments, "$name: named");
-    checkUnmodifiableList("$name types", invocation.typeArguments);
-    checkUnmodifiableList("$name positional", invocation.positionalArguments);
-    checkUnmodifiableMap("$name named", invocation.namedArguments);
-
-    expectInvocation(
-        "$name:",
-        invocation,
-        new Invocation.genericMethod(
-            #name, [int], null, {#arg: argument, #arg2: argument2}));
-  }
-  {
-    // Many arguments.
-    var name = ".name<..>(..,..:)";
-    var argument = new Object();
-    var argument2 = new Object();
-    Type intList = new TypeHelper<List<int>>().type;
-    var invocation = new Invocation.genericMethod(
-        #name,
-        [int, double, intList],
-        [argument, argument2, null, argument],
-        {#arg: argument, #arg2: argument2, #arg3: null, #arg4: argument});
-    Expect.isFalse(invocation.isGetter, "$name:isGetter");
-    Expect.isFalse(invocation.isSetter, "$name:isSetter");
-    Expect.isFalse(invocation.isAccessor, "$name:isAccessor");
-    Expect.isTrue(invocation.isMethod, "$name:isMethod");
-    Expect.equals(#name, invocation.memberName, "$name:name");
-    Expect.listEquals(
-        [int, double, intList], invocation.typeArguments, "$name:types");
-    Expect.listEquals([argument, argument2, null, argument],
-        invocation.positionalArguments, "$name:pos");
-    Expect.mapEquals(
-        {#arg: argument, #arg2: argument2, #arg3: null, #arg4: argument},
-        invocation.namedArguments);
-    checkUnmodifiableList("$name types", invocation.typeArguments);
-    checkUnmodifiableList("$name positional", invocation.positionalArguments);
-    checkUnmodifiableMap("$name named", invocation.namedArguments);
-  }
-  {
-    // Accepts iterables, not just lists.
-    var name = "iterables";
-    var argument = new Object();
-    var argument2 = new Object();
-    Type intList = new TypeHelper<List<int>>().type;
-    var invocation = new Invocation.genericMethod(
-        #name,
-        [int, double, intList].where(kTrue),
-        [argument, argument2, null, argument].where(kTrue),
-        {#arg: argument, #arg2: argument2, #arg3: null, #arg4: argument});
-    Expect.isFalse(invocation.isGetter, "$name:isGetter");
-    Expect.isFalse(invocation.isSetter, "$name:isSetter");
-    Expect.isFalse(invocation.isAccessor, "$name:isAccessor");
-    Expect.isTrue(invocation.isMethod, "$name:isMethod");
-    Expect.equals(#name, invocation.memberName, "$name:name");
-    Expect.listEquals(
-        [int, double, intList], invocation.typeArguments, "$name:types");
-    Expect.listEquals([argument, argument2, null, argument],
-        invocation.positionalArguments, "$name:pos");
-    Expect.mapEquals(
-        {#arg: argument, #arg2: argument2, #arg3: null, #arg4: argument},
-        invocation.namedArguments);
-    checkUnmodifiableList("$name types", invocation.typeArguments);
-    checkUnmodifiableList("$name positional", invocation.positionalArguments);
-    checkUnmodifiableMap("$name named", invocation.namedArguments);
-  }
-  // No null type arguments.
-  Expect.throws(() {
-    new Invocation.genericMethod(#name, [null], []);
-  });
-  Expect.throws(() {
-    new Invocation.genericMethod(#name, [int, null], []);
-  });
-}
-
-void checkUnmodifiableList(String name, List<Object> list) {
-  if (list.isNotEmpty) {
-    Expect.throws(() {
-      list[0] = null;
-    }, null, "$name: list not unmodifiable");
-  }
-  Expect.throws(() {
-    list.add(null);
-  }, null, "$name: list not unmodifiable");
-}
-
-void checkUnmodifiableMap(String name, Map<Symbol, Object> map) {
-  Expect.throws(() {
-    map[#key] = null;
-  }, null, "$name: map not unmodifiable");
-}
-
-class TypeHelper<T> {
-  Type get type => T;
-}
-
-expectInvocation(String name, Invocation expect, Invocation actual) {
-  Expect.equals(expect.isGetter, actual.isGetter, "$name:isGetter");
-  Expect.equals(expect.isSetter, actual.isSetter, "$name:isSetter");
-  Expect.equals(expect.isAccessor, actual.isAccessor, "$name:isAccessor");
-  Expect.equals(actual.isGetter || actual.isSetter, actual.isAccessor);
-  Expect.equals(expect.isMethod, actual.isMethod, "$name:isMethod");
-  Expect.isTrue(actual.isMethod || actual.isGetter || actual.isSetter);
-  Expect.isFalse(actual.isMethod && actual.isGetter);
-  Expect.isFalse(actual.isMethod && actual.isSetter);
-  Expect.isFalse(actual.isSetter && actual.isGetter);
-  Expect.equals(expect.memberName, actual.memberName, "$name:memberName");
-  Expect.listEquals(expect.typeArguments, actual.typeArguments, "$name:types");
-  Expect.listEquals(
-      expect.positionalArguments, actual.positionalArguments, "$name:pos");
-  Expect.mapEquals(expect.namedArguments, actual.namedArguments, "$name:named");
-  checkUnmodifiableList(name, actual.typeArguments);
-  checkUnmodifiableList(name, actual.positionalArguments);
-  checkUnmodifiableMap(name, actual.namedArguments);
-}
-
-bool kTrue(_) => true;
diff --git a/tests/corelib_2/is_operator_basic_types_test.dart b/tests/corelib_2/is_operator_basic_types_test.dart
deleted file mode 100644
index df7ce05ca80..00000000000
--- a/tests/corelib_2/is_operator_basic_types_test.dart
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for the "is" type test operator.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-check(args) {
-  var list = args[0];
-  var string = args[1];
-  var nullObject = args[2];
-
-  Expect.isTrue(list is Object);
-  Expect.isTrue(list is List);
-  Expect.isTrue(list is Iterable);
-  Expect.isFalse(list is Comparable);
-  Expect.isFalse(list is Pattern);
-  Expect.isFalse(list is String);
-
-  Expect.isFalse(list is! List);
-  Expect.isFalse(list is! Iterable);
-  Expect.isTrue(list is! Comparable);
-  Expect.isTrue(list is! Pattern);
-  Expect.isTrue(list is! String);
-
-  Expect.isTrue(string is Object);
-  Expect.isFalse(string is List);
-  Expect.isFalse(string is Iterable);
-  Expect.isTrue(string is Comparable);
-  Expect.isTrue(string is Pattern);
-  Expect.isTrue(string is String);
-
-  Expect.isTrue(string is! List);
-  Expect.isTrue(string is! Iterable);
-  Expect.isFalse(string is! Comparable);
-  Expect.isFalse(string is! Pattern);
-  Expect.isFalse(string is! String);
-
-  Expect.isTrue(nullObject is Object);
-  Expect.isFalse(nullObject is List);
-  Expect.isFalse(nullObject is Iterable);
-  Expect.isFalse(nullObject is Comparable);
-  Expect.isFalse(nullObject is Pattern);
-  Expect.isFalse(nullObject is String);
-
-  Expect.isTrue(nullObject is! List);
-  Expect.isTrue(nullObject is! Iterable);
-  Expect.isTrue(nullObject is! Comparable);
-  Expect.isTrue(nullObject is! Pattern);
-  Expect.isTrue(nullObject is! String);
-}
-
-main() {
-  // Try to make it hard for an optimizing compiler to inline the
-  // tests.
-  check([[], 'string', null]);
-
-  // Try to make it even harder.
-  var string = new String.fromCharCodes([new DateTime.now().year % 100 + 1]);
-  check([string.codeUnits, string, null]);
-}
diff --git a/tests/corelib_2/iterable_contains2_test.dart b/tests/corelib_2/iterable_contains2_test.dart
deleted file mode 100644
index febbb31e391..00000000000
--- a/tests/corelib_2/iterable_contains2_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Tests for the contains methods on lists.
-
-class A {
-  const A();
-}
-
-class B extends A {
-  const B();
-}
-
-main() {
-  var list = <B>[new B()];
-  var set = new Set<B>();
-  set.add(new B());
-  var iterable1 = list.map((x) => x);
-  var iterable2 = list.take(1);
-  var list2 = const <B>[const B()];
-  var iterable3 = list2.map((x) => x);
-  var iterable4 = list2.take(1);
-  var iterables = [
-    list,
-    set,
-    iterable1,
-    iterable2,
-    list2,
-    iterable3,
-    iterable4
-  ];
-  for (var iterable in iterables) {
-    Expect.isFalse(iterable.contains(new A()));
-  }
-}
diff --git a/tests/corelib_2/iterable_contains_test.dart b/tests/corelib_2/iterable_contains_test.dart
deleted file mode 100644
index bbb9cca97f6..00000000000
--- a/tests/corelib_2/iterable_contains_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Tests for the contains methods on lists.
-
-test(list, notInList) {
-  testList(list) {
-    for (int i = 0; i < list.length; i++) {
-      var elem = list[i];
-      Expect.isTrue(list.contains(list[i]), "$list.contains($elem)");
-    }
-    Expect.isFalse(list.contains(notInList), "!$list.contains($notInList)");
-  }
-
-  List fixedList = new List.filled(list.length, null);
-  List growList = [];
-  for (int i = 0; i < list.length; i++) {
-    fixedList[i] = list[i];
-    growList.add(list[i]);
-  }
-  testList(list);
-  testList(fixedList);
-  testList(growList);
-}
-
-class C {
-  const C();
-}
-
-class Niet {
-  bool operator ==(other) => false;
-}
-
-main() {
-  test(const <String>["a", "b", "c", null], "d");
-  test(const <int>[1, 2, 3, null], 0);
-  test(const <bool>[true, false], null);
-  test(const <C>[const C(), const C(), null], new C());
-  test(<C>[new C(), new C(), new C(), null], new C());
-  test(const <double>[0.0, 1.0, 5e-324, 1e+308, double.infinity], 2.0);
-  Expect.isTrue(const <double>[-0.0].contains(0.0));
-  Expect.isFalse(const <double>[double.nan].contains(double.nan));
-  var niet = new Niet();
-  Expect.isFalse([niet].contains(niet));
-}
diff --git a/tests/corelib_2/iterable_element_at_test.dart b/tests/corelib_2/iterable_element_at_test.dart
deleted file mode 100644
index 8ea5ed403de..00000000000
--- a/tests/corelib_2/iterable_element_at_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  List<int> list1 = <int>[1, 2, 3];
-  List<int> list2 = const <int>[4, 5, 6];
-  List<String> list3 = <String>[];
-  Set<int> set1 = new Set<int>();
-  set1..add(11)..add(12)..add(13);
-  Set set2 = new Set();
-
-  Expect.equals(1, list1.elementAt(0));
-  Expect.equals(2, list1.elementAt(1));
-  Expect.equals(3, list1.elementAt(2));
-  list1.elementAt("2"); //# static: compile-time error
-  Expect.throwsArgumentError(() => list1.elementAt(-1));
-  Expect.throwsRangeError(() => list1.elementAt(3));
-
-  Expect.equals(4, list2.elementAt(0));
-  Expect.equals(5, list2.elementAt(1));
-  Expect.equals(6, list2.elementAt(2));
-  list2.elementAt("2"); //# static: compile-time error
-  Expect.throwsArgumentError(() => list2.elementAt(-1));
-  Expect.throwsRangeError(() => list2.elementAt(3));
-
-  Expect.isTrue(set1.contains(set1.elementAt(0)));
-  Expect.isTrue(set1.contains(set1.elementAt(1)));
-  Expect.isTrue(set1.contains(set1.elementAt(2)));
-  Expect.throwsArgumentError(() => set1.elementAt(-1));
-  Expect.throwsRangeError(() => set1.elementAt(3));
-
-  set2.elementAt("2"); //# static: compile-time error
-  Expect.throwsArgumentError(() => set2.elementAt(-1));
-  Expect.throwsRangeError(() => set2.elementAt(0));
-  Expect.throwsRangeError(() => set2.elementAt(1));
-}
diff --git a/tests/corelib_2/iterable_empty_test.dart b/tests/corelib_2/iterable_empty_test.dart
deleted file mode 100644
index c942bfe8a3c..00000000000
--- a/tests/corelib_2/iterable_empty_test.dart
+++ /dev/null
@@ -1,72 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  testEmpty(name, Iterable<int> it, [depth = 2]) {
-    Expect.isTrue(it.isEmpty, name);
-    Expect.isFalse(it.isNotEmpty, name);
-    Expect.equals(0, it.length, name);
-    Expect.isFalse(it.contains(null), name);
-    Expect.isFalse(it.any((x) => true), name);
-    Expect.isTrue(it.every((x) => false), name);
-    Expect.throwsStateError(() => it.first, name);
-    Expect.throwsStateError(() => it.last, name);
-    Expect.throwsStateError(() => it.single, name);
-    Expect.throwsRangeError(() => it.elementAt(0), name);
-    Expect.throwsStateError(() => it.reduce((a, b) => a), name);
-    Expect.throwsStateError(() => it.singleWhere((_) => true), name);
-    Expect.equals(42, it.fold(42, (a, b) => "not 42"), name);
-    Expect.equals(42, it.firstWhere((v) => true, orElse: () => 42), name);
-    Expect.equals(42, it.lastWhere((v) => true, orElse: () => 42), name);
-    Expect.equals("", it.join("separator"), name);
-    Expect.equals("()", it.toString(), name);
-    Expect.listEquals([], it.toList(), name);
-    Expect.listEquals([], it.toList(growable: false), name);
-    Expect.listEquals([], it.toList(growable: true), name);
-    Expect.equals(0, it.toSet().length, name);
-    // Doesn't throw:
-    it.forEach((v) => throw v);
-    for (var v in it) {
-      throw v;
-    }
-    // Check that returned iterables are also empty.
-    if (depth > 0) {
-      testEmpty("$name-map", it.map((x) => x), depth - 1);
-      testEmpty("$name-where", it.where((x) => true), depth - 1);
-      testEmpty("$name-expand", it.expand((x) => [x]), depth - 1);
-      testEmpty("$name-skip", it.skip(1), depth - 1);
-      testEmpty("$name-take", it.take(2), depth - 1);
-      testEmpty("$name-skipWhile", it.skipWhile((v) => false), depth - 1);
-      testEmpty("$name-takeWhile", it.takeWhile((v) => true), depth - 1);
-    }
-  }
-
-  testType(name, it, [depth = 2]) {
-    Expect.isTrue(it is Iterable<int>, name);
-    Expect.isFalse(it is Iterable<String>, name);
-    if (depth > 0) {
-      testType("$name-where", it.where((_) => true), depth - 1);
-      testType("$name-skip", it.skip(1), depth - 1);
-      testType("$name-take", it.take(1), depth - 1);
-      testType("$name-skipWhile", it.skipWhile((_) => false), depth - 1);
-      testType("$name-takeWhile", it.takeWhile((_) => true), depth - 1);
-      testType("$name-toList", it.toList(), depth - 1);
-      testType("$name-toList", it.toList(growable: false), depth - 1);
-      testType("$name-toList", it.toList(growable: true), depth - 1);
-      testType("$name-toSet", it.toSet(), depth - 1);
-    }
-  }
-
-  test(name, it) {
-    testEmpty(name, it);
-    testType(name, it);
-  }
-
-  test("const", const Iterable<int>.empty());
-  test("new", new Iterable<int>.empty());
-}
diff --git a/tests/corelib_2/iterable_expand_test.dart b/tests/corelib_2/iterable_expand_test.dart
deleted file mode 100644
index ed918a773e2..00000000000
--- a/tests/corelib_2/iterable_expand_test.dart
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-
-class MyList extends ListBase {
-  List list;
-  MyList(this.list);
-
-  get length => list.length;
-  set length(val) {
-    list.length = val;
-  }
-
-  operator [](index) => list[index];
-  operator []=(index, val) => list[index] = val;
-
-  String toString() => "[" + join(", ") + "]";
-}
-
-main() {
-  test(expectation, iterable) {
-    Expect.listEquals(expectation, iterable.toList());
-  }
-
-  // Function not called on empty iterable.
-  test(
-      [],
-      [].expand((x) {
-        throw "not called";
-      }));
-
-  // Creating the iterable doesn't call the function.
-  [1].expand((x) {
-    throw "not called";
-  });
-
-  test([1], [1].expand((x) => [x]));
-  test([1, 2, 3], [1, 2, 3].expand((x) => [x]));
-
-  test([], [1].expand((x) => []));
-  test([], [1, 2, 3].expand((x) => []));
-  test([2], [1, 2, 3].expand((x) => x == 2 ? [2] : []));
-
-  test([1, 1, 2, 2, 3, 3], [1, 2, 3].expand((x) => [x, x]));
-  test([1, 1, 2], [1, 2, 3].expand((x) => [x, x, x].skip(x)));
-
-  test([1], new MyList([1]).expand((x) => [x]));
-  test([1, 2, 3], new MyList([1, 2, 3]).expand((x) => [x]));
-
-  test([], new MyList([1]).expand((x) => []));
-  test([], new MyList([1, 2, 3]).expand((x) => []));
-  test([2], new MyList([1, 2, 3]).expand((x) => x == 2 ? [2] : []));
-
-  test([1, 1, 2, 2, 3, 3], new MyList([1, 2, 3]).expand((x) => [x, x]));
-  test([1, 1, 2], new MyList([1, 2, 3]).expand((x) => [x, x, x].skip(x)));
-
-  // if function throws, iteration is stopped.
-  Iterable iterable = [1, 2, 3].expand((x) {
-    if (x == 2) throw "FAIL";
-    return [x, x];
-  });
-  Iterator it = iterable.iterator;
-  Expect.isTrue(it.moveNext());
-  Expect.equals(1, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(1, it.current);
-  Expect.throws(it.moveNext, (e) => e == "FAIL");
-  // After throwing, iteration is ended.
-  Expect.equals(null, it.current);
-  Expect.isFalse(it.moveNext());
-}
diff --git a/tests/corelib_2/iterable_first_test.dart b/tests/corelib_2/iterable_first_test.dart
deleted file mode 100644
index 2e32935195c..00000000000
--- a/tests/corelib_2/iterable_first_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  List<int> list1 = <int>[1, 2, 3];
-  List<int> list2 = const <int>[4, 5];
-  List<String> list3 = <String>[];
-  Set<int> set1 = new Set<int>();
-  set1..add(11)..add(12)..add(13);
-  Set set2 = new Set();
-
-  Expect.equals(1, list1.first);
-  Expect.equals(4, list2.first);
-  Expect.throwsStateError(() => list3.first);
-
-  Expect.isTrue(set1.contains(set1.first));
-
-  Expect.throwsStateError(() => set2.first);
-}
diff --git a/tests/corelib_2/iterable_first_where_test.dart b/tests/corelib_2/iterable_first_where_test.dart
deleted file mode 100644
index 3b17df48250..00000000000
--- a/tests/corelib_2/iterable_first_where_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  List<int> list1 = <int>[1, 2, 3];
-  List<int> list2 = const <int>[4, 5];
-  List<String> list3 = <String>[];
-  Set<int> set1 = new Set<int>();
-  set1..add(11)..add(12)..add(13);
-  Set set2 = new Set();
-
-  Expect.equals(2, list1.firstWhere((x) => x.isEven));
-  Expect.equals(1, list1.firstWhere((x) => x.isOdd));
-  Expect.throwsStateError(() => list1.firstWhere((x) => x > 3));
-  Expect.equals(null, list1.firstWhere((x) => x > 3, orElse: () => null));
-  Expect.equals(499, list1.firstWhere((x) => x > 3, orElse: () => 499));
-
-  Expect.equals(4, list2.firstWhere((x) => x.isEven));
-  Expect.equals(5, list2.firstWhere((x) => x.isOdd));
-  Expect.throwsStateError(() => list2.firstWhere((x) => x == 0));
-  Expect.equals(null, list2.firstWhere((x) => false, orElse: () => null));
-  Expect.equals(499, list2.firstWhere((x) => false, orElse: () => 499));
-
-  Expect.throwsStateError(() => list3.firstWhere((x) => x == 0));
-  Expect.throwsStateError(() => list3.firstWhere((x) => true));
-  Expect.equals(null, list3.firstWhere((x) => true, orElse: () => null));
-  Expect.equals("str", list3.firstWhere((x) => false, orElse: () => "str"));
-
-  Expect.equals(12, set1.firstWhere((x) => x.isEven));
-  var odd = set1.firstWhere((x) => x.isOdd);
-  Expect.isTrue(odd == 11 || odd == 13);
-  Expect.throwsStateError(() => set1.firstWhere((x) => false));
-  Expect.equals(null, set1.firstWhere((x) => false, orElse: () => null));
-  Expect.equals(499, set1.firstWhere((x) => false, orElse: () => 499));
-
-  Expect.throwsStateError(() => set2.firstWhere((x) => false));
-  Expect.throwsStateError(() => set2.firstWhere((x) => true));
-  Expect.equals(null, set2.firstWhere((x) => true, orElse: () => null));
-  Expect.equals(499, set2.firstWhere((x) => false, orElse: () => 499));
-}
diff --git a/tests/corelib_2/iterable_fold_test.dart b/tests/corelib_2/iterable_fold_test.dart
deleted file mode 100644
index 88b1d294b1f..00000000000
--- a/tests/corelib_2/iterable_fold_test.dart
+++ /dev/null
@@ -1,208 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-import 'dart:typed_data';
-
-class MyList extends ListBase {
-  List list;
-  MyList(this.list);
-
-  get length => list.length;
-  set length(val) {
-    list.length = val;
-  }
-
-  operator [](index) => list[index];
-  operator []=(index, val) => list[index] = val;
-}
-
-Iterable id(Iterable x) => x;
-
-main() {
-  for (dynamic iterable in [
-    const [1, 2, 3],
-    [1, 2, 3],
-    new List<int>.filled(3, null)
-      ..[0] = 1
-      ..[1] = 2
-      ..[2] = 3,
-    {1: 1, 2: 2, 3: 3}.keys,
-    {1: 1, 2: 2, 3: 3}.values,
-    new Iterable.generate(3, (x) => x + 1),
-    new List.generate(3, (x) => x + 1),
-    [0, 1, 2, 3].where((x) => x > 0),
-    [0, 1, 2].map((x) => x + 1),
-    [
-      [1, 2],
-      [3]
-    ].expand(id),
-    [3, 2, 1].reversed,
-    [0, 1, 2, 3].skip(1),
-    [1, 2, 3, 4].take(3),
-    new Uint8List(3)
-      ..[0] = 1
-      ..[1] = 2
-      ..[2] = 3,
-    (new HashMap()
-          ..[1] = 1
-          ..[2] = 2
-          ..[3] = 3)
-        .keys,
-    (new HashMap()
-          ..[1] = 1
-          ..[2] = 2
-          ..[3] = 3)
-        .values,
-    (new SplayTreeMap()
-          ..[1] = 0
-          ..[2] = 0
-          ..[3] = 0)
-        .keys,
-    (new SplayTreeMap()
-          ..[0] = 1
-          ..[1] = 2
-          ..[2] = 3)
-        .values,
-    new HashSet()..add(1)..add(2)..add(3),
-    new LinkedHashSet()..add(1)..add(2)..add(3),
-    new SplayTreeSet()..add(1)..add(2)..add(3),
-    "\x01\x02\x03".codeUnits,
-    "\x01\x02\x03".runes,
-    new MyList([1, 2, 3]),
-  ]) {
-    int callCount = 0;
-    var result = iterable.fold(0, (x, y) {
-      callCount++;
-      return x + y;
-    });
-    Expect.equals(6, result, "${iterable.runtimeType}");
-    Expect.equals(3, callCount);
-  }
-
-  // Empty iterables are allowed.
-  for (var iterable in [
-    const [],
-    [],
-    new List.filled(0, null),
-    {}.keys,
-    {}.values,
-    new Iterable.generate(0, (x) => x + 1),
-    new List.generate(0, (x) => x + 1),
-    [0, 1, 2, 3].where((x) => false),
-    [].map((x) => x + 1),
-    [[], []].expand(id),
-    [].reversed,
-    [0, 1, 2, 3].skip(4),
-    [1, 2, 3, 4].take(0),
-    new Uint8List(0),
-    (new HashMap()).keys,
-    (new HashMap()).values,
-    (new SplayTreeMap()).keys,
-    (new SplayTreeMap()).values,
-    new HashSet(),
-    new LinkedHashSet(),
-    new SplayTreeSet(),
-    "".codeUnits,
-    "".runes,
-    new MyList([]),
-  ]) {
-    Expect.equals(42, iterable.fold(42, (x, y) => throw "Unreachable"));
-  }
-
-  // Singleton iterables are calling reduce function.
-  for (dynamic iterable in [
-    const [1],
-    [1],
-    new List<int>.filled(1, null)..[0] = 1,
-    {1: 1}.keys,
-    {1: 1}.values,
-    new Iterable.generate(1, (x) => x + 1),
-    new List.generate(1, (x) => x + 1),
-    [0, 1, 2, 3].where((x) => x == 1),
-    [0].map((x) => x + 1),
-    [
-      [],
-      [1]
-    ].expand(id),
-    [1].reversed,
-    [0, 1].skip(1),
-    [1, 2, 3, 4].take(1),
-    new Uint8List(1)..[0] = 1,
-    (new HashMap()..[1] = 0).keys,
-    (new HashMap()..[0] = 1).values,
-    (new SplayTreeMap()..[1] = 0).keys,
-    (new SplayTreeMap()..[0] = 1).values,
-    new HashSet()..add(1),
-    new LinkedHashSet()..add(1),
-    new SplayTreeSet()..add(1),
-    "\x01".codeUnits,
-    "\x01".runes,
-    new MyList([1]),
-  ]) {
-    Expect.equals(43, iterable.fold(42, (x, y) => x + y));
-  }
-
-  // Concurrent modifications not allowed.
-  testModification(base, modify, transform) {
-    var iterable = transform(base);
-    Expect.throws(() {
-      iterable.fold(0, (x, y) {
-        modify(base);
-        return x + y;
-      });
-    }, (e) => e is ConcurrentModificationError);
-  }
-
-  void add4(collection) {
-    collection.add(4);
-  }
-
-  void addListOf4(collection) {
-    collection.add([4]);
-  }
-
-  void put4(map) {
-    map[4] = 4;
-  }
-
-  testModification([1, 2, 3], add4, id);
-  testModification(new HashSet()..add(1)..add(2)..add(3), add4, id);
-  testModification(new LinkedHashSet()..add(1)..add(2)..add(3), add4, id);
-  testModification(new SplayTreeSet()..add(1)..add(2)..add(3), add4, id);
-  testModification(new MyList([1, 2, 3]), add4, id);
-
-  testModification([0, 1, 2, 3], add4, (x) => x.where((int x) => x > 0));
-  testModification([0, 1, 2], add4, (x) => x.map((x) => x + 1));
-  testModification([
-    [1, 2],
-    [3]
-  ], addListOf4, (x) => x.expand((List<int> x) => x));
-  testModification([3, 2, 1], add4, (x) => x.reversed);
-  testModification({1: 1, 2: 2, 3: 3}, put4, (x) => x.keys);
-  testModification({1: 1, 2: 2, 3: 3}, put4, (x) => x.values);
-  var hashMap = new HashMap()
-    ..[1] = 1
-    ..[2] = 2
-    ..[3] = 3;
-  testModification(hashMap, put4, (x) => x.keys);
-  hashMap = new HashMap()
-    ..[1] = 1
-    ..[2] = 2
-    ..[3] = 3;
-  testModification(hashMap, put4, (x) => x.values);
-  var splayMap = new SplayTreeMap()
-    ..[1] = 1
-    ..[2] = 2
-    ..[3] = 3;
-  testModification(splayMap, put4, (x) => x.keys);
-  splayMap = new SplayTreeMap()
-    ..[1] = 1
-    ..[2] = 2
-    ..[3] = 3;
-  testModification(splayMap, put4, (x) => x.values);
-}
diff --git a/tests/corelib_2/iterable_followed_by_test.dart b/tests/corelib_2/iterable_followed_by_test.dart
deleted file mode 100644
index 4a56e2d5925..00000000000
--- a/tests/corelib_2/iterable_followed_by_test.dart
+++ /dev/null
@@ -1,104 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:collection" show Queue;
-import "dart:typed_data" show Int32List;
-
-import "package:expect/expect.dart";
-
-// Tests behavior of result of an operation on a followedBy iterable.
-test(List expects, Iterable iterable, [String name]) {
-  try {
-    Expect.isFalse(iterable is List, "$name is! List");
-    Expect.isFalse(iterable is Set, "$name is! Set");
-    Expect.isFalse(iterable is Queue, "$name is! Queue");
-    if (expects.isNotEmpty) {
-      Expect.equals(expects.first, iterable.first, "$name: first");
-      Expect.equals(expects.last, iterable.last, "$name: last");
-    } else {
-      Expect.throwsStateError(() => iterable.first, "$name: first");
-      Expect.throwsStateError(() => iterable.last, "$name: last");
-    }
-    var it = iterable.iterator;
-    for (int index = 0; index < expects.length; index++) {
-      Expect.isTrue(it.moveNext(), "$name: has element $index");
-      var expect = expects[index];
-      Expect.equals(expect, it.current, "$name at $index");
-      Expect.equals(
-          expect, iterable.elementAt(index), "$name: elementAt($index)");
-      Expect.isTrue(iterable.contains(expect), "$name:contains $index");
-    }
-    Expect.isFalse(it.moveNext(),
-        "$name: extra element at ${expects.length}: ${it.current}");
-  } on Error {
-    print("Failed during: $name");
-    rethrow;
-  }
-}
-
-// Tests various operations on the a followedBy iterable.
-tests(List<int> expects, Iterable<int> follow, [String name]) {
-  int length = expects.length;
-  test(expects, follow, name);
-  for (int i = 0; i <= length; i++) {
-    test(expects.sublist(i), follow.skip(i), "$name.skip($i)");
-  }
-  for (int i = 0; i <= length; i++) {
-    test(expects.sublist(0, i), follow.take(i), "$name.take($i)");
-  }
-  for (int i = 0; i <= length; i++) {
-    for (int j = 0; j <= length - i; j++) {
-      test(expects.sublist(i, i + j), follow.skip(i).take(j),
-          "$name.skiptake($i,${i+j})");
-      test(expects.sublist(i, i + j), follow.take(i + j).skip(i),
-          "$name.takeskip($i,${i+j})");
-    }
-  }
-}
-
-// Tests various different types of iterables as first and second operand.
-types(List expects, List<int> first, List<int> second, [String name]) {
-  var conversions = <String, Iterable<int> Function(List<int>)>{
-    "const": toConst,
-    "list": toList,
-    "unmod": toUnmodifiable,
-    "set": toSet,
-    "queue": toQueue,
-    "eff-len-iter": toELIter,
-    "non-eff-iter": toNEIter,
-    "typed": toTyped,
-    "keys": toKeys,
-    "values": toValues,
-  };
-  conversions.forEach((n1, c1) {
-    conversions.forEach((n2, c2) {
-      tests(expects, c1(first).followedBy(c2(second)), "$name:$n1/$n2");
-    });
-  });
-}
-
-List<int> toConst(List<int> elements) => elements;
-List<int> toList(List<int> elements) => elements.toList();
-List<int> toUnmodifiable(List<int> elements) =>
-    new List<int>.unmodifiable(elements);
-Set<int> toSet(List<int> elements) => elements.toSet();
-Queue<int> toQueue(List<int> elements) => new Queue<int>.from(elements);
-// Creates an efficient-length iterable.
-Iterable<int> toELIter(List<int> elements) => elements.map<int>((x) => x);
-// Creates a non-efficient-length iterable.
-Iterable<int> toNEIter(List<int> elements) => elements.where((x) => true);
-List<int> toTyped(List<int> elements) => new Int32List.fromList(elements);
-Iterable<int> toKeys(List<int> elements) =>
-    new Map<int, int>.fromIterables(elements, elements).keys;
-Iterable<int> toValues(List<int> elements) =>
-    new Map<int, int>.fromIterables(elements, elements).values;
-
-main() {
-  types(<int>[], const <int>[], const <int>[], "0+0");
-  types(<int>[1, 2, 3, 4], const <int>[], const <int>[1, 2, 3, 4], "0+4");
-  types(<int>[1, 2, 3, 4], const <int>[1, 2], const <int>[3, 4], "2+2");
-  types(<int>[1, 2, 3, 4], const <int>[1, 2, 3, 4], const <int>[], "4+0");
-}
diff --git a/tests/corelib_2/iterable_generate_test.dart b/tests/corelib_2/iterable_generate_test.dart
deleted file mode 100644
index d541d04fd5c..00000000000
--- a/tests/corelib_2/iterable_generate_test.dart
+++ /dev/null
@@ -1,74 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  void test(expectedList, generatedIterable) {
-    Expect.equals(expectedList.length, generatedIterable.length);
-    Expect.listEquals(expectedList, generatedIterable.toList());
-  }
-
-  test([], new Iterable.generate(0));
-  test([0], new Iterable.generate(1));
-  test([0, 1, 2, 3, 4], new Iterable.generate(5));
-  test(["0", "1", "2", "3", "4"], new Iterable.generate(5, (x) => "$x"));
-  test([2, 3, 4, 5, 6], new Iterable.generate(7).skip(2));
-  test([0, 1, 2, 3, 4], new Iterable.generate(7).take(5));
-  test([], new Iterable.generate(5).skip(6));
-  test([], new Iterable.generate(5).take(0));
-  test([], new Iterable.generate(5).take(3).skip(3));
-  test([], new Iterable.generate(5).skip(6).take(0));
-
-  // Test types.
-
-  Iterable<int> it = new Iterable<int>.generate(5);
-  Expect.isTrue(it is Iterable<int>);
-  Expect.isTrue(it.iterator is Iterator<int>);
-  Expect.isTrue(it is! Iterable<String>);
-  Expect.isTrue(it.iterator is! Iterator<String>);
-  test([0, 1, 2, 3, 4], it);
-
-  Iterable<String> st = new Iterable<String>.generate(5, (x) => "$x");
-  Expect.isTrue(st is Iterable<String>);
-  Expect.isTrue(st.iterator is Iterator<String>);
-  Expect.isFalse(st is Iterable<int>);
-  Expect.isFalse(st.iterator is Iterator<int>);
-  test(["0", "1", "2", "3", "4"], st);
-
-  Expect.throws(() => new Iterable<String>.generate(5));
-
-  // Omitted generator function means `(int x) => x`, and the type parameters
-  // must then be compatible with `int`.
-  // Check that we catch invalid type parameters.
-
-  // Valid types:
-  Iterable<int> iter1 = new Iterable<int>.generate(5);
-  Expect.equals(2, iter1.elementAt(2));
-  Iterable<num> iter2 = new Iterable<num>.generate(5);
-  Expect.equals(2, iter2.elementAt(2));
-  Iterable<Object> iter3 = new Iterable<Object>.generate(5);
-  Expect.equals(2, iter3.elementAt(2));
-  Iterable<dynamic> iter4 = new Iterable<dynamic>.generate(5);
-  Expect.equals(2, iter4.elementAt(2));
-
-  // Invalid types:
-  Expect.throws(() => new Iterable<String>.generate(5));
-  Expect.throws(() => new Iterable<Null>.generate(5).elementAt(2));   //# 01: ok
-  Expect.throws(() => new Iterable<bool>.generate(5));
-
-  // Regression: https://github.com/dart-lang/sdk/issues/26358
-  var count = 0;
-  var iter = new Iterable.generate(5, (v) {
-    count++;
-    return v;
-  });
-  Expect.equals(0, count);
-  Expect.equals(2, iter.elementAt(2)); // Doesn't compute the earlier values.
-  Expect.equals(1, count);
-  Expect.equals(2, iter.skip(2).first); // Doesn't compute the skipped values.
-  Expect.equals(2, count);
-}
diff --git a/tests/corelib_2/iterable_join_test.dart b/tests/corelib_2/iterable_join_test.dart
deleted file mode 100644
index 8bc35b90b15..00000000000
--- a/tests/corelib_2/iterable_join_test.dart
+++ /dev/null
@@ -1,150 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class IC {
-  int count = 0;
-  String toString() => "${count++}";
-}
-
-testJoin(String expect, Iterable iterable, [String separator]) {
-  if (separator != null) {
-    Expect.equals(expect, iterable.join(separator));
-  } else {
-    Expect.equals(expect, iterable.join());
-  }
-}
-
-testCollections() {
-  testJoin("", [], ",");
-  testJoin("", [], "");
-  testJoin("", []);
-  testJoin("", new Set(), ",");
-  testJoin("", new Set(), "");
-  testJoin("", new Set());
-
-  testJoin("42", [42], ",");
-  testJoin("42", [42], "");
-  testJoin("42", [42]);
-  testJoin("42", new Set()..add(42), ",");
-  testJoin("42", new Set()..add(42), "");
-  testJoin("42", new Set()..add(42));
-
-  testJoin("a,b,c,d", ["a", "b", "c", "d"], ",");
-  testJoin("abcd", ["a", "b", "c", "d"], "");
-  testJoin("abcd", ["a", "b", "c", "d"]);
-  testJoin("null,b,c,d", [null, "b", "c", "d"], ",");
-  testJoin("1,2,3,4", [1, 2, 3, 4], ",");
-  var ic = new IC();
-  testJoin("0,1,2,3", [ic, ic, ic, ic], ",");
-
-  var set = new Set()..add(1)..add(2)..add(3);
-  var perm = new Set()
-    ..add("123")
-    ..add("132")
-    ..add("213")
-    ..add("231")
-    ..add("312")
-    ..add("321");
-  var setString = set.join();
-  Expect.isTrue(perm.contains(setString), "set: $setString");
-
-  void testArray(List<int> array) {
-    testJoin("1,3,5,7,9", array.where((i) => i.isOdd), ",");
-    testJoin("0,2,4,6,8,10,12,14,16,18", array.map((i) => i * 2), ",");
-    testJoin("5,6,7,8,9", array.skip(5), ",");
-    testJoin("5,6,7,8,9", array.skipWhile((i) => i < 5), ",");
-    testJoin("0,1,2,3,4", array.take(5), ",");
-    testJoin("0,1,2,3,4", array.takeWhile((i) => i < 5), ",");
-  }
-
-  testArray([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]);
-  var fixedArray = new List<int>.filled(10, null);
-  for (int i = 0; i < 10; i++) {
-    fixedArray[i] = i;
-  }
-  testArray(fixedArray);
-  testArray(const [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]);
-
-  testJoin("a,b,c,d", ["a", "b", "c", "d"].map((x) => x), ",");
-  testJoin("abcd", ["a", "b", "c", "d"].map((x) => x), "");
-  testJoin("abcd", ["a", "b", "c", "d"].map((x) => x));
-  testJoin("null,b,c,d", [null, "b", "c", "d"].map((x) => x), ",");
-  testJoin("1,2,3,4", [1, 2, 3, 4].map((x) => x), ",");
-  testJoin("4,5,6,7", [ic, ic, ic, ic].map((x) => x), ",");
-}
-
-void testStringVariants() {
-  // ASCII
-  testJoin("axbxcxd", ["a", "b", "c", "d"], "x");
-  testJoin("a\u2000b\u2000c\u2000d", ["a", "b", "c", "d"], "\u2000");
-  testJoin("abcd", ["a", "b", "c", "d"], "");
-  testJoin("abcd", ["a", "b", "c", "d"]);
-  // Non-ASCII
-  testJoin("axbxcx\u2000", ["a", "b", "c", "\u2000"], "x");
-  testJoin("a\u2000b\u2000c\u2000\u2000", ["a", "b", "c", "\u2000"], "\u2000");
-  testJoin("abc\u2000", ["a", "b", "c", "\u2000"], "");
-  testJoin("abc\u2000", ["a", "b", "c", "\u2000"]);
-  // Long-ASCII
-  testJoin("ax" * 255 + "a", new List.generate(256, (_) => "a"), "x");
-  testJoin("a" * 256, new List.generate(256, (_) => "a"));
-  // Long-Non-ASCII
-  testJoin("a\u2000" * 255 + "a", new List.generate(256, (_) => "a"), "\u2000");
-  testJoin("\u2000" * 256, new List.generate(256, (_) => "\u2000"));
-  testJoin(
-      "\u2000x" * 255 + "\u2000", new List.generate(256, (_) => "\u2000"), "x");
-
-  var o1 = new Stringable("x");
-  var o2 = new Stringable("\ufeff");
-  testJoin("xa" * 3 + "x", [o1, o1, o1, o1], "a");
-  testJoin("x" * 4, [o1, o1, o1, o1], "");
-  testJoin("x" * 4, [o1, o1, o1, o1]);
-
-  testJoin("\ufeffx" * 3 + "\ufeff", [o2, o2, o2, o2], "x");
-  testJoin("\ufeff" * 4, [o2, o2, o2, o2], "");
-  testJoin("\ufeff" * 4, [o2, o2, o2, o2]);
-
-  testJoin("a\u2000x\ufeff", ["a", "\u2000", o1, o2]);
-  testJoin("a\u2000\ufeffx", ["a", "\u2000", o2, o1]);
-  testJoin("ax\u2000\ufeff", ["a", o1, "\u2000", o2]);
-  testJoin("ax\ufeff\u2000", ["a", o1, o2, "\u2000"]);
-  testJoin("a\ufeffx\u2000", ["a", o2, o1, "\u2000"]);
-  testJoin("a\ufeff\u2000x", ["a", o2, "\u2000", o1]);
-
-  testJoin("\u2000ax\ufeff", ["\u2000", "a", o1, o2]);
-  testJoin("\u2000a\ufeffx", ["\u2000", "a", o2, o1]);
-  testJoin("xa\u2000\ufeff", [o1, "a", "\u2000", o2]);
-  testJoin("xa\ufeff\u2000", [o1, "a", o2, "\u2000"]);
-  testJoin("\ufeffax\u2000", [o2, "a", o1, "\u2000"]);
-  testJoin("\ufeffa\u2000x", [o2, "a", "\u2000", o1]);
-
-  testJoin("\u2000xa\ufeff", ["\u2000", o1, "a", o2]);
-  testJoin("\u2000\ufeffax", ["\u2000", o2, "a", o1]);
-  testJoin("x\u2000a\ufeff", [o1, "\u2000", "a", o2]);
-  testJoin("x\ufeffa\u2000", [o1, o2, "a", "\u2000"]);
-  testJoin("\ufeffxa\u2000", [o2, o1, "a", "\u2000"]);
-  testJoin("\ufeff\u2000ax", [o2, "\u2000", "a", o1]);
-
-  testJoin("\u2000x\ufeffa", ["\u2000", o1, o2, "a"]);
-  testJoin("\u2000\ufeffxa", ["\u2000", o2, o1, "a"]);
-  testJoin("x\u2000\ufeffa", [o1, "\u2000", o2, "a"]);
-  testJoin("x\ufeff\u2000a", [o1, o2, "\u2000", "a"]);
-  testJoin("\ufeffx\u2000a", [o2, o1, "\u2000", "a"]);
-  testJoin("\ufeff\u2000xa", [o2, "\u2000", o1, "a"]);
-}
-
-class Stringable {
-  final String value;
-  Stringable(this.value);
-  String toString() => value;
-}
-
-main() {
-  testCollections();
-  testStringVariants();
-  // TODO(lrn): test scalar lists.
-}
diff --git a/tests/corelib_2/iterable_last_test.dart b/tests/corelib_2/iterable_last_test.dart
deleted file mode 100644
index ae37bebb99f..00000000000
--- a/tests/corelib_2/iterable_last_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  List<int> list1 = <int>[1, 2, 3];
-  List<int> list2 = const <int>[4, 5];
-  List<String> list3 = <String>[];
-  Set<int> set1 = new Set<int>();
-  set1..add(11)..add(12)..add(13);
-  Set set2 = new Set();
-
-  Expect.equals(3, list1.last);
-  Expect.equals(5, list2.last);
-  Expect.throwsStateError(() => list3.last);
-
-  Expect.isTrue(set1.contains(set1.last));
-
-  Expect.throwsStateError(() => set2.last);
-}
diff --git a/tests/corelib_2/iterable_last_where_test.dart b/tests/corelib_2/iterable_last_where_test.dart
deleted file mode 100644
index fd96e81faf8..00000000000
--- a/tests/corelib_2/iterable_last_where_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  List<int> list1 = <int>[1, 2, 3];
-  List<int> list2 = const <int>[4, 5, 6];
-  List<String> list3 = <String>[];
-  Set<int> set1 = new Set<int>();
-  set1..add(11)..add(12)..add(13);
-  Set set2 = new Set();
-
-  Expect.equals(2, list1.lastWhere((x) => x.isEven));
-  Expect.equals(3, list1.lastWhere((x) => x.isOdd));
-  Expect.throwsStateError(() => list1.lastWhere((x) => x > 3));
-  Expect.equals(null, list1.lastWhere((x) => x > 3, orElse: () => null));
-  Expect.equals(499, list1.lastWhere((x) => x > 3, orElse: () => 499));
-
-  Expect.equals(6, list2.lastWhere((x) => x.isEven));
-  Expect.equals(5, list2.lastWhere((x) => x.isOdd));
-  Expect.throwsStateError(() => list2.lastWhere((x) => x == 0));
-  Expect.equals(null, list2.lastWhere((x) => false, orElse: () => null));
-  Expect.equals(499, list2.lastWhere((x) => false, orElse: () => 499));
-
-  Expect.throwsStateError(() => list3.lastWhere((x) => x == 0));
-  Expect.throwsStateError(() => list3.lastWhere((x) => true));
-  Expect.equals(null, list3.lastWhere((x) => true, orElse: () => null));
-  Expect.equals("str", list3.lastWhere((x) => false, orElse: () => "str"));
-
-  Expect.equals(12, set1.lastWhere((x) => x.isEven));
-  var odd = set1.lastWhere((x) => x.isOdd);
-  Expect.isTrue(odd == 11 || odd == 13);
-  Expect.throwsStateError(() => set1.lastWhere((x) => false));
-  Expect.equals(null, set1.lastWhere((x) => false, orElse: () => null));
-  Expect.equals(499, set1.lastWhere((x) => false, orElse: () => 499));
-
-  Expect.throwsStateError(() => set2.lastWhere((x) => false));
-  Expect.throwsStateError(() => set2.lastWhere((x) => true));
-  Expect.equals(null, set2.lastWhere((x) => true, orElse: () => null));
-  Expect.equals(499, set2.lastWhere((x) => false, orElse: () => 499));
-}
diff --git a/tests/corelib_2/iterable_length_test.dart b/tests/corelib_2/iterable_length_test.dart
deleted file mode 100644
index 692a4f5d0bd..00000000000
--- a/tests/corelib_2/iterable_length_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:collection";
-import "package:expect/expect.dart";
-
-class A extends IterableBase {
-  int count;
-  A(this.count);
-
-  Iterator get iterator {
-    return new AIterator(count);
-  }
-}
-
-class AIterator implements Iterator {
-  int _count;
-  int _current;
-
-  AIterator(this._count);
-
-  bool moveNext() {
-    if (_count > 0) {
-      _current = _count;
-      _count--;
-      return true;
-    }
-    _current = null;
-    return false;
-  }
-
-  get current => _current;
-}
-
-main() {
-  var a = new A(10);
-  Expect.equals(10, a.length);
-  a = new A(0);
-  Expect.equals(0, a.length);
-  a = new A(5);
-  Expect.equals(5, a.map((e) => e + 1).length);
-  Expect.equals(3, a.where((e) => e >= 3).length);
-}
diff --git a/tests/corelib_2/iterable_mapping_test.dart b/tests/corelib_2/iterable_mapping_test.dart
deleted file mode 100644
index 5c6f30006d8..00000000000
--- a/tests/corelib_2/iterable_mapping_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  List<int> list1 = <int>[1, 2, 3];
-  List<int> list2 = const <int>[4, 5];
-  List<String> list3 = <String>[];
-  Set<int> set1 = new Set<int>();
-  set1.addAll([11, 12, 13]);
-  Set set2 = new Set();
-
-  Iterable mapped = list1.map((x) => x + 1);
-  Expect.listEquals([2, 3, 4], mapped.toList());
-
-  mapped = mapped.map((x) => x + 1);
-  Expect.listEquals([3, 4, 5], mapped.toList());
-
-  mapped = list2.map((x) => x + 1);
-  Expect.listEquals([5, 6], mapped.toList());
-
-  mapped = mapped.map((x) => x + 1);
-  Expect.listEquals([6, 7], mapped.toList());
-
-  mapped = list3.map((x) => x + 1); //# 01: compile-time error
-  Expect.listEquals([], mapped.toList()); //# 01: continued
-
-  mapped = mapped.map((x) => x + 1); //# 01: continued
-  Expect.listEquals([], mapped.toList()); //# 01: continued
-
-  var expected = new Set<int>()..addAll([12, 13, 14]);
-  mapped = set1.map((x) => x + 1);
-  Expect.isFalse(mapped is List);
-  Expect.setEquals(expected, mapped.toSet());
-
-  expected = new Set<int>()..addAll([13, 14, 15]);
-  mapped = mapped.map((x) => x + 1);
-  Expect.isFalse(mapped is List);
-  Expect.setEquals(expected, mapped.toSet());
-
-  mapped = set2.map((x) => x + 1);
-  Expect.isFalse(mapped is List);
-  Expect.listEquals([], mapped.toList());
-
-  mapped = mapped.map((x) => x + 1);
-  Expect.isFalse(mapped is List);
-  Expect.listEquals([], mapped.toList());
-}
diff --git a/tests/corelib_2/iterable_reduce_test.dart b/tests/corelib_2/iterable_reduce_test.dart
deleted file mode 100644
index 8b32959a2e4..00000000000
--- a/tests/corelib_2/iterable_reduce_test.dart
+++ /dev/null
@@ -1,212 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-import 'dart:typed_data';
-
-class MyList extends ListBase {
-  List list;
-  MyList(this.list);
-
-  get length => list.length;
-  set length(val) {
-    list.length = val;
-  }
-
-  operator [](index) => list[index];
-  operator []=(index, val) => list[index] = val;
-}
-
-Iterable id(Iterable x) => x;
-
-main() {
-  // Test functionality.
-  for (dynamic iterable in [
-    const [1, 2, 3],
-    [1, 2, 3],
-    new List<int>.filled(3, null)
-      ..[0] = 1
-      ..[1] = 2
-      ..[2] = 3,
-    {1: 1, 2: 2, 3: 3}.keys,
-    {1: 1, 2: 2, 3: 3}.values,
-    new Iterable.generate(3, (x) => x + 1),
-    new List.generate(3, (x) => x + 1),
-    [0, 1, 2, 3].where((x) => x > 0),
-    [0, 1, 2].map((x) => x + 1),
-    [
-      [1, 2],
-      [3]
-    ].expand(id),
-    [3, 2, 1].reversed,
-    [0, 1, 2, 3].skip(1),
-    [1, 2, 3, 4].take(3),
-    new Uint8List(3)
-      ..[0] = 1
-      ..[1] = 2
-      ..[2] = 3,
-    (new HashMap()
-          ..[1] = 1
-          ..[2] = 2
-          ..[3] = 3)
-        .keys,
-    (new HashMap()
-          ..[1] = 1
-          ..[2] = 2
-          ..[3] = 3)
-        .values,
-    (new SplayTreeMap()
-          ..[1] = 0
-          ..[2] = 0
-          ..[3] = 0)
-        .keys,
-    (new SplayTreeMap()
-          ..[0] = 1
-          ..[1] = 2
-          ..[2] = 3)
-        .values,
-    new HashSet()..add(1)..add(2)..add(3),
-    new LinkedHashSet()..add(1)..add(2)..add(3),
-    new SplayTreeSet()..add(1)..add(2)..add(3),
-    "\x01\x02\x03".codeUnits,
-    "\x01\x02\x03".runes,
-    new MyList([1, 2, 3]),
-  ]) {
-    int callCount = 0;
-    var result = iterable.reduce((x, y) {
-      callCount++;
-      // Return type of reduce() callback should match element type.
-      return (x + y) as int;
-    });
-    Expect.equals(6, result, "${iterable.runtimeType}");
-    Expect.equals(2, callCount);
-  }
-
-  // Empty iterables not allowed.
-  for (var iterable in [
-    const [],
-    [],
-    new List.filled(0, null),
-    {}.keys,
-    {}.values,
-    new Iterable.generate(0, (x) => x + 1),
-    new List.generate(0, (x) => x + 1),
-    [0, 1, 2, 3].where((x) => false),
-    [].map((x) => x + 1),
-    [[], []].expand(id),
-    [].reversed,
-    [0, 1, 2, 3].skip(4),
-    [1, 2, 3, 4].take(0),
-    new Uint8List(0),
-    (new HashMap()).keys,
-    (new HashMap()).values,
-    (new SplayTreeMap()).keys,
-    (new SplayTreeMap()).values,
-    new HashSet(),
-    new LinkedHashSet(),
-    new SplayTreeSet(),
-    "".codeUnits,
-    "".runes,
-    new MyList([]),
-  ]) {
-    Expect
-        .throwsStateError(() => iterable.reduce((x, y) => throw "Unreachable"));
-  }
-
-  // Singleton iterables not calling reduce function.
-  for (dynamic iterable in [
-    const [1],
-    [1],
-    new List<int>.filled(1, null)..[0] = 1,
-    {1: 1}.keys,
-    {1: 1}.values,
-    new Iterable.generate(1, (x) => x + 1),
-    new List.generate(1, (x) => x + 1),
-    [0, 1, 2, 3].where((x) => x == 1),
-    [0].map((x) => x + 1),
-    [
-      [],
-      [1]
-    ].expand(id),
-    [1].reversed,
-    [0, 1].skip(1),
-    [1, 2, 3, 4].take(1),
-    new Uint8List(1)..[0] = 1,
-    (new HashMap()..[1] = 0).keys,
-    (new HashMap()..[0] = 1).values,
-    (new SplayTreeMap()..[1] = 0).keys,
-    (new SplayTreeMap()..[0] = 1).values,
-    new HashSet()..add(1),
-    new LinkedHashSet()..add(1),
-    new SplayTreeSet()..add(1),
-    "\x01".codeUnits,
-    "\x01".runes,
-    new MyList([1]),
-  ]) {
-    Expect.equals(1, iterable.reduce((x, y) => throw "Unreachable"));
-  }
-
-  // Concurrent modifications not allowed.
-  testModification(base, modify, transform) {
-    var iterable = transform(base);
-    Expect.throws(() {
-      iterable.reduce((x, y) {
-        modify(base);
-        // Return type of reduce() callback should match element type.
-        return (x + y) as int;
-      });
-    }, (e) => e is ConcurrentModificationError);
-  }
-
-  void add4(collection) {
-    collection.add(4);
-  }
-
-  void addListOf4(collection) {
-    collection.add([4]);
-  }
-
-  void put4(map) {
-    map[4] = 4;
-  }
-
-  testModification([1, 2, 3], add4, id);
-  testModification(new HashSet()..add(1)..add(2)..add(3), add4, id);
-  testModification(new LinkedHashSet()..add(1)..add(2)..add(3), add4, id);
-  testModification(new SplayTreeSet()..add(1)..add(2)..add(3), add4, id);
-  testModification(new MyList([1, 2, 3]), add4, id);
-
-  testModification([0, 1, 2, 3], add4, (x) => x.where((int x) => x > 0));
-  testModification([0, 1, 2], add4, (x) => x.map((x) => x + 1));
-  testModification([
-    [1, 2],
-    [3]
-  ], addListOf4, (x) => x.expand((List<int> x) => x));
-  testModification([3, 2, 1], add4, (x) => x.reversed);
-  testModification({1: 1, 2: 2, 3: 3}, put4, (x) => x.keys);
-  testModification({1: 1, 2: 2, 3: 3}, put4, (x) => x.values);
-  var hashMap = new HashMap()
-    ..[1] = 1
-    ..[2] = 2
-    ..[3] = 3;
-  testModification(hashMap, put4, (x) => x.keys);
-  hashMap = new HashMap()
-    ..[1] = 1
-    ..[2] = 2
-    ..[3] = 3;
-  testModification(hashMap, put4, (x) => x.values);
-  var splayMap = new SplayTreeMap()
-    ..[1] = 1
-    ..[2] = 2
-    ..[3] = 3;
-  testModification(splayMap, put4, (x) => x.keys);
-  splayMap = new SplayTreeMap()
-    ..[1] = 1
-    ..[2] = 2
-    ..[3] = 3;
-  testModification(splayMap, put4, (x) => x.values);
-}
diff --git a/tests/corelib_2/iterable_return_type_helper.dart b/tests/corelib_2/iterable_return_type_helper.dart
deleted file mode 100644
index 29c133afb68..00000000000
--- a/tests/corelib_2/iterable_return_type_helper.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-testIntIterable(iterable) {
-  Expect.isTrue(iterable is Iterable<int>, "${iterable.runtimeType}");
-  Expect.isFalse(iterable is Iterable<String>, "${iterable.runtimeType}");
-}
-
-void testIterable(Iterable<int> iterable, [int depth = 3]) {
-  testIntIterable(iterable);
-  if (depth > 0) {
-    testIterable(iterable.where((x) => true), depth - 1);
-    testIterable(iterable.skip(1), depth - 1);
-    testIterable(iterable.take(1), depth - 1);
-    testIterable(iterable.skipWhile((x) => false), depth - 1);
-    testIterable(iterable.takeWhile((x) => true), depth - 1);
-    testList(iterable.toList(growable: true), depth - 1);
-    testList(iterable.toList(growable: false), depth - 1);
-    testIterable(iterable.toSet(), depth - 1);
-  }
-}
-
-void testList(List<int> list, [int depth = 3]) {
-  testIterable(list, depth);
-  if (depth > 0) {
-    testIterable(list.getRange(0, list.length), depth - 1);
-    testIterable(list.reversed, depth - 1);
-    testMap(list.asMap(), depth - 1);
-  }
-}
-
-void testMap(Map<int, int> map, [int depth = 3]) {
-  Expect.isTrue(map is Map<int, int>);
-  Expect.isFalse(map is Map<int, String>);
-  Expect.isFalse(map is Map<String, int>);
-  if (depth > 0) {
-    testIterable(map.keys, depth - 1);
-    testIterable(map.values, depth - 1);
-  }
-}
diff --git a/tests/corelib_2/iterable_return_type_int64_test.dart b/tests/corelib_2/iterable_return_type_int64_test.dart
deleted file mode 100644
index 0087c4786bc..00000000000
--- a/tests/corelib_2/iterable_return_type_int64_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Separate test for int64 support to be skipped on the web.
-
-import 'iterable_return_type_helper.dart';
-
-import 'dart:collection';
-import 'dart:typed_data';
-
-main() {
-  // Types for int64 support
-  testList(new Uint64List(1)..[0] = 1);
-  testList(new Int64List(1)..[0] = 1);
-}
diff --git a/tests/corelib_2/iterable_return_type_test.dart b/tests/corelib_2/iterable_return_type_test.dart
deleted file mode 100644
index cb68bfbd2f2..00000000000
--- a/tests/corelib_2/iterable_return_type_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js where [List.addAll] was not typed
-// correctly.
-
-import 'iterable_return_type_helper.dart';
-
-import 'dart:collection';
-import 'dart:typed_data';
-
-main() {
-  // Empty lists.
-  testList(<int>[]);
-  testList(new List<int>.filled(0, null));
-  testList(<int>[]);
-  testList(const <int>[]);
-  testList(new List<int>.generate(0, (x) => x + 1));
-  // Singleton lists.
-  testList(<int>[1]);
-  testList(new List<int>.filled(1, null)..[0] = 1);
-  testList(<int>[]..add(1));
-  testList(const <int>[1]);
-  testList(new List<int>.generate(1, (x) => x + 1));
-
-  // Typed lists.
-  testList(new Uint8List(1)..[0] = 1);
-  testList(new Int8List(1)..[0] = 1);
-  testList(new Uint16List(1)..[0] = 1);
-  testList(new Int16List(1)..[0] = 1);
-  testList(new Uint32List(1)..[0] = 1);
-  testList(new Int32List(1)..[0] = 1);
-
-  testIterable(new Set<int>()..add(1));
-  testIterable(new HashSet<int>()..add(1));
-  testIterable(new LinkedHashSet<int>()..add(1));
-  testIterable(new SplayTreeSet<int>()..add(1));
-
-  testIterable(new Queue<int>()..add(1));
-  testIterable(new DoubleLinkedQueue<int>()..add(1));
-  testIterable(new ListQueue<int>()..add(1));
-
-  testMap(new Map<int, int>()..[1] = 1);
-  testMap(new HashMap<int, int>()..[1] = 1);
-  testMap(new LinkedHashMap<int, int>()..[1] = 1);
-  testMap(new SplayTreeMap<int, int>()..[1] = 1);
-  testMap(<int, int>{1: 1});
-  testMap(const <int, int>{1: 1});
-}
diff --git a/tests/corelib_2/iterable_single_test.dart b/tests/corelib_2/iterable_single_test.dart
deleted file mode 100644
index bee92bbb511..00000000000
--- a/tests/corelib_2/iterable_single_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  List<int> list1a = <int>[1];
-  List<int> list1b = <int>[1, 2, 3];
-  List<int> list1c = <int>[];
-  List<int> list2a = const <int>[5];
-  List<int> list2b = const <int>[4, 5];
-  List<int> list2c = const <int>[];
-  Set<int> set1 = new Set<int>();
-  set1..add(22);
-  Set set2 = new Set();
-  set2..add(11)..add(12)..add(13);
-  Set set3 = new Set();
-
-  Expect.equals(1, list1a.single);
-  Expect.throwsStateError(() => list1b.single);
-  Expect.throwsStateError(() => list1c.single);
-
-  Expect.equals(5, list2a.single);
-  Expect.throwsStateError(() => list2b.single);
-  Expect.throwsStateError(() => list2c.single);
-
-  Expect.equals(22, set1.single);
-  Expect.throwsStateError(() => set2.single);
-  Expect.throwsStateError(() => set3.single);
-}
diff --git a/tests/corelib_2/iterable_single_where_test.dart b/tests/corelib_2/iterable_single_where_test.dart
deleted file mode 100644
index 0acd2c46185..00000000000
--- a/tests/corelib_2/iterable_single_where_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  List<int> list1 = <int>[1, 2, 3];
-  List<int> list2 = const <int>[4, 5, 6];
-  List<String> list3 = <String>[];
-  Set<int> set1 = new Set<int>();
-  set1..add(11)..add(12)..add(13);
-  Set set2 = new Set();
-
-  Expect.equals(2, list1.singleWhere((x) => x.isEven));
-  Expect.equals(3, list1.singleWhere((x) => x == 3));
-  Expect.throwsStateError(() => list1.singleWhere((x) => x.isOdd));
-
-  Expect.equals(6, list2.singleWhere((x) => x == 6));
-  Expect.equals(5, list2.singleWhere((x) => x.isOdd));
-  Expect.throwsStateError(() => list2.singleWhere((x) => x.isEven));
-
-  Expect.throwsStateError(() => list3.singleWhere((x) => x == 0));
-
-  Expect.equals(12, set1.singleWhere((x) => x.isEven));
-  Expect.equals(11, set1.singleWhere((x) => x == 11));
-  Expect.throwsStateError(() => set1.singleWhere((x) => x.isOdd));
-
-  Expect.throwsStateError(() => set2.singleWhere((x) => true));
-}
diff --git a/tests/corelib_2/iterable_skip_test.dart b/tests/corelib_2/iterable_skip_test.dart
deleted file mode 100644
index c7a486d5ca5..00000000000
--- a/tests/corelib_2/iterable_skip_test.dart
+++ /dev/null
@@ -1,259 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  List<int> list1 = <int>[1, 2, 3];
-  List<int> list2 = const <int>[4, 5];
-  List<String> list3 = <String>[];
-  Set<int> set1 = new Set<int>();
-  set1..add(11)..add(12)..add(13);
-  Set set2 = new Set();
-
-  Iterable<int> skip0 = list1.skip(0);
-  Expect.isTrue(skip0 is! List);
-  Iterator<int> it = skip0.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(1, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(2, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(3, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  Iterable<int> skip1 = list1.skip(1);
-  Expect.isTrue(skip1 is! List);
-  Expect.isTrue(skip1.skip(2).skip(1) is! List);
-  it = skip1.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(2, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(3, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  Iterable<int> skip2 = list1.skip(2);
-  Expect.isTrue(skip2 is! List);
-  Expect.isTrue(skip2.skip(2).skip(1) is! List);
-  it = skip2.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(3, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  Iterable<int> skip3 = list1.skip(3);
-  Expect.isTrue(skip3 is! List);
-  Expect.isTrue(skip3.skip(2).skip(1) is! List);
-  it = skip3.iterator;
-  Expect.isNull(it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  Iterable<int> skip4 = list1.skip(4);
-  Expect.isTrue(skip4 is! List);
-  Expect.isTrue(skip4.skip(2).skip(1) is! List);
-  it = skip4.iterator;
-  Expect.isNull(it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  skip0 = list1.skip(0);
-  skip1 = skip0.skip(1);
-  skip2 = skip1.skip(1);
-  skip3 = skip2.skip(1);
-  skip4 = skip3.skip(1);
-  it = skip0.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(1, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(2, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(3, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-  it = skip1.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(2, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(3, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-  it = skip2.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(3, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-  it = skip3.iterator;
-  Expect.isNull(it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-  it = skip4.iterator;
-  Expect.isNull(it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  skip0 = list2.skip(0);
-  Expect.isTrue(skip0 is! List);
-  Expect.isTrue(skip0.skip(2).skip(1) is! List);
-  it = skip0.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(4, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(5, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  skip1 = list2.skip(1);
-  Expect.isTrue(skip1 is! List);
-  Expect.isTrue(skip1.skip(2).skip(1) is! List);
-  it = skip1.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(5, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  skip2 = list2.skip(2);
-  Expect.isTrue(skip2 is! List);
-  Expect.isTrue(skip2.skip(2).skip(1) is! List);
-  it = skip2.iterator;
-  Expect.isNull(it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  skip3 = list2.skip(3);
-  Expect.isTrue(skip3 is! List);
-  Expect.isTrue(skip3.skip(2).skip(1) is! List);
-  it = skip3.iterator;
-  Expect.isNull(it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  Iterable<String> skip02 = list3.skip(0);
-  Expect.isTrue(skip02 is! List);
-  Expect.isTrue(skip02.skip(2).skip(1) is! List);
-  Iterator<String> it2 = skip02.iterator;
-  Expect.isNull(it2.current);
-  Expect.isFalse(it2.moveNext());
-  Expect.isNull(it2.current);
-
-  Iterable<String> skip12 = list3.skip(1);
-  Expect.isTrue(skip12 is! List);
-  Expect.isTrue(skip12.skip(2).skip(1) is! List);
-  it2 = skip12.iterator;
-  Expect.isNull(it2.current);
-  Expect.isFalse(it2.moveNext());
-  Expect.isNull(it2.current);
-
-  skip0 = set1.skip(0);
-  List<int> copied = skip0.toList();
-  Expect.equals(3, copied.length);
-  Expect.isTrue(set1.contains(copied[0]));
-  Expect.isTrue(set1.contains(copied[1]));
-  Expect.isTrue(set1.contains(copied[2]));
-  Expect.isTrue(copied[0] != copied[1]);
-  Expect.isTrue(copied[0] != copied[2]);
-  Expect.isTrue(copied[1] != copied[2]);
-  it = skip0.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.isNotNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.isNotNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.isNotNull(it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  skip1 = set1.skip(1);
-  copied = skip1.toList();
-  Expect.equals(2, copied.length);
-  Expect.isTrue(set1.contains(copied[0]));
-  Expect.isTrue(set1.contains(copied[1]));
-  Expect.isTrue(copied[0] != copied[1]);
-  it = skip1.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.isNotNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.isNotNull(it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  skip2 = set1.skip(2);
-  copied = skip2.toList();
-  Expect.equals(1, copied.length);
-  Expect.isTrue(set1.contains(copied[0]));
-  it = skip2.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.isNotNull(it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  skip3 = set1.skip(3);
-  it = skip3.iterator;
-  Expect.isNull(it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  skip4 = set1.skip(4);
-  it = skip4.iterator;
-  Expect.isNull(it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  var dynamicSkip0 = set2.skip(0);
-  var dynamicIt = dynamicSkip0.iterator;
-  Expect.isNull(dynamicIt.current);
-  Expect.isFalse(dynamicIt.moveNext());
-  Expect.isNull(dynamicIt.current);
-
-  var dynamicSkip1 = set2.skip(1);
-  dynamicIt = dynamicSkip1.iterator;
-  Expect.isNull(dynamicIt.current);
-  Expect.isFalse(dynamicIt.moveNext());
-  Expect.isNull(dynamicIt.current);
-
-  testSkipTake(Iterable input, int skip, int take) {
-    List expected = [];
-    Iterator iter = input.iterator;
-    for (int i = 0; i < skip; i++) iter.moveNext();
-    for (int i = 0; i < take; i++) {
-      if (!iter.moveNext()) break;
-      expected.add(iter.current);
-    }
-    Expect.listEquals(expected, input.skip(skip).take(take).toList());
-  }
-
-  List longList = [1, 4, 5, 3, 8, 11, 12, 6, 9, 10, 13, 7, 2, 14, 15];
-  Set bigSet = longList.toSet();
-
-  for (Iterable collection in [longList, longList.reversed, bigSet]) {
-    testSkipTake(collection, 0, 0);
-    testSkipTake(collection, 0, 5);
-    testSkipTake(collection, 0, 15);
-    testSkipTake(collection, 0, 25);
-    testSkipTake(collection, 5, 0);
-    testSkipTake(collection, 5, 5);
-    testSkipTake(collection, 5, 10);
-    testSkipTake(collection, 5, 20);
-    testSkipTake(collection, 15, 0);
-    testSkipTake(collection, 15, 5);
-    testSkipTake(collection, 20, 0);
-    testSkipTake(collection, 20, 5);
-    Expect.throwsRangeError(() => longList.skip(-1));
-  }
-}
diff --git a/tests/corelib_2/iterable_skip_while_test.dart b/tests/corelib_2/iterable_skip_while_test.dart
deleted file mode 100644
index b8d26a8490e..00000000000
--- a/tests/corelib_2/iterable_skip_while_test.dart
+++ /dev/null
@@ -1,148 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  List<int> list1 = <int>[1, 2, 3];
-  List<int> list2 = const <int>[4, 5];
-  List<String> list3 = <String>[];
-  Set<int> set1 = new Set<int>();
-  set1..add(11)..add(12)..add(13);
-  Set set2 = new Set();
-
-  Iterable<int> skipWhileTrue = list1.skipWhile((x) => true);
-  Iterator<int> it = skipWhileTrue.iterator;
-  Expect.isNull(it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  Iterable<int> skipWhileOdd = list1.skipWhile((x) => x.isOdd);
-  it = skipWhileOdd.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(2, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(3, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  Iterable<int> skipWhileLessThan3 = list1.skipWhile((x) => x < 3);
-  it = skipWhileLessThan3.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(3, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  Iterable<int> skipWhileFalse = list1.skipWhile((x) => false);
-  it = skipWhileFalse.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(1, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(2, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(3, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  Iterable<int> skipWhileEven = list1.skipWhile((x) => x.isEven);
-  it = skipWhileEven.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(1, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(2, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(3, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  skipWhileTrue = list2.skipWhile((x) => true);
-  it = skipWhileTrue.iterator;
-  Expect.isNull(it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  skipWhileEven = list2.skipWhile((x) => x.isEven);
-  it = skipWhileEven.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(5, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  skipWhileOdd = list2.skipWhile((x) => x.isOdd);
-  it = skipWhileOdd.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(4, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(5, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  skipWhileFalse = list2.skipWhile((x) => false);
-  it = skipWhileFalse.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(4, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(5, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  Iterable<String> skipWhileFalse2 = list3.skipWhile((x) => false);
-  Iterator<String> it2 = skipWhileFalse2.iterator;
-  Expect.isNull(it2.current);
-  Expect.isFalse(it2.moveNext());
-  Expect.isNull(it2.current);
-
-  Iterable<String> skipWhileTrue2 = list3.skipWhile((x) => true);
-  it2 = skipWhileTrue2.iterator;
-  Expect.isNull(it2.current);
-  Expect.isFalse(it2.moveNext());
-  Expect.isNull(it2.current);
-
-  skipWhileTrue = set1.skipWhile((x) => true);
-  it = skipWhileTrue.iterator;
-  Expect.isNull(it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  skipWhileFalse = set1.skipWhile((x) => false);
-  List<int> copied = skipWhileFalse.toList();
-  Expect.equals(3, copied.length);
-  Expect.isTrue(set1.contains(copied[0]));
-  Expect.isTrue(set1.contains(copied[1]));
-  Expect.isTrue(set1.contains(copied[1]));
-  Expect.isTrue(copied[0] != copied[1]);
-  Expect.isTrue(copied[0] != copied[2]);
-  Expect.isTrue(copied[1] != copied[2]);
-  it = skipWhileFalse.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.isTrue(it.current != null);
-  Expect.isTrue(it.moveNext());
-  Expect.isTrue(it.current != null);
-  Expect.isTrue(it.moveNext());
-  Expect.isTrue(it.current != null);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  var dynamicSkipWhileTrue = set2.skipWhile((x) => true);
-  var dynamicIt = dynamicSkipWhileTrue.iterator;
-  Expect.isNull(dynamicIt.current);
-  Expect.isFalse(dynamicIt.moveNext());
-  Expect.isNull(dynamicIt.current);
-
-  var dynamicSkipWhileFalse = set2.skipWhile((x) => false);
-  dynamicIt = dynamicSkipWhileFalse.iterator;
-  Expect.isNull(dynamicIt.current);
-  Expect.isFalse(dynamicIt.moveNext());
-  Expect.isNull(dynamicIt.current);
-}
diff --git a/tests/corelib_2/iterable_take_test.dart b/tests/corelib_2/iterable_take_test.dart
deleted file mode 100644
index 34a2f287658..00000000000
--- a/tests/corelib_2/iterable_take_test.dart
+++ /dev/null
@@ -1,240 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  List<int> list1 = <int>[1, 2, 3];
-  List<int> list2 = const <int>[4, 5];
-  List<String> list3 = <String>[];
-  Set<int> set1 = new Set<int>();
-  set1..add(11)..add(12)..add(13);
-  Set set2 = new Set();
-
-  Iterable<int> take0 = list1.take(0);
-  Iterator<int> it = take0.iterator;
-  Expect.isNull(it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  Iterable<int> take1 = list1.take(1);
-  it = take1.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(1, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  Iterable<int> take2 = list1.take(2);
-  it = take2.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(1, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(2, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  Iterable<int> take3 = list1.take(3);
-  it = take3.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(1, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(2, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(3, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  Iterable<int> take4 = list1.take(4);
-  it = take4.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(1, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(2, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(3, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  take4 = list1.take(4);
-  take3 = take4.take(3);
-  take2 = take3.take(2);
-  take1 = take2.take(1);
-  take0 = take1.take(0);
-  it = take0.iterator;
-  Expect.isNull(it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-  it = take1.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(1, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-  it = take2.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(1, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(2, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-  it = take3.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(1, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(2, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(3, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-  it = take4.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(1, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(2, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(3, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  take0 = list2.take(0);
-  it = take0.iterator;
-  Expect.isNull(it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  take1 = list2.take(1);
-  it = take1.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(4, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  take2 = list2.take(2);
-  it = take2.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(4, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(5, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  take3 = list2.take(3);
-  it = take3.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(4, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(5, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  Iterable<String> take02 = list3.take(0);
-  Iterator<String> it2 = take02.iterator;
-  Expect.isNull(it2.current);
-  Expect.isFalse(it2.moveNext());
-  Expect.isNull(it2.current);
-
-  Iterable<String> take12 = list3.take(1);
-  it2 = take12.iterator;
-  Expect.isNull(it2.current);
-  Expect.isFalse(it2.moveNext());
-  Expect.isNull(it2.current);
-
-  take0 = set1.take(0);
-  it = take0.iterator;
-  Expect.isNull(it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  take1 = set1.take(1);
-  List<int> copied = take1.toList();
-  Expect.equals(1, copied.length);
-  Expect.isTrue(set1.contains(copied[0]));
-  it = take1.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.isNotNull(it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  take2 = set1.take(2);
-  copied = take2.toList();
-  Expect.equals(2, copied.length);
-  Expect.isTrue(set1.contains(copied[0]));
-  Expect.isTrue(set1.contains(copied[1]));
-  Expect.isTrue(copied[0] != copied[1]);
-  it = take2.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.isNotNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.isNotNull(it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  take3 = set1.take(3);
-  copied = take3.toList();
-  Expect.equals(3, copied.length);
-  Expect.isTrue(set1.contains(copied[0]));
-  Expect.isTrue(set1.contains(copied[1]));
-  Expect.isTrue(set1.contains(copied[2]));
-  Expect.isTrue(copied[0] != copied[1]);
-  Expect.isTrue(copied[0] != copied[2]);
-  Expect.isTrue(copied[1] != copied[2]);
-  it = take3.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.isNotNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.isNotNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.isNotNull(it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  var dynamicTake0 = set2.take(0);
-  var dynamicIt = dynamicTake0.iterator;
-  Expect.isNull(dynamicIt.current);
-  Expect.isFalse(dynamicIt.moveNext());
-  Expect.isNull(dynamicIt.current);
-
-  var dynamicTake1 = set2.take(1);
-  dynamicIt = dynamicTake1.iterator;
-  Expect.isNull(dynamicIt.current);
-  Expect.isFalse(dynamicIt.moveNext());
-  Expect.isNull(dynamicIt.current);
-
-  Expect.throwsRangeError(() => list1.skip(-1));
-  Expect.throwsRangeError(() => list2.skip(-1));
-  Expect.throwsRangeError(() => list3.skip(-1));
-  Expect.throwsRangeError(() => set1.skip(-1));
-  Expect.throwsRangeError(() => set2.skip(-1));
-  Expect.throwsRangeError(() => list1.map((x) => x).skip(-1));
-  Expect.throwsRangeError(() => list2.map((x) => x).skip(-1));
-  Expect.throwsRangeError(() => list3.map((x) => x).skip(-1));
-  Expect.throwsRangeError(() => set1.map((x) => x).skip(-1));
-  Expect.throwsRangeError(() => set2.map((x) => x).skip(-1));
-
-  Expect.throws(() => list1.take(null));
-  Expect.throws(() => list2.take(null));
-  Expect.throws(() => list3.take(null));
-  Expect.throws(() => set1.take(null));
-  Expect.throws(() => set2.take(null));
-  Expect.throws(() => list1.map((x) => x).take(null));
-  Expect.throws(() => list2.map((x) => x).take(null));
-  Expect.throws(() => list3.map((x) => x).take(null));
-  Expect.throws(() => set1.map((x) => x).take(null));
-  Expect.throws(() => set2.map((x) => x).take(null));
-}
diff --git a/tests/corelib_2/iterable_take_while_test.dart b/tests/corelib_2/iterable_take_while_test.dart
deleted file mode 100644
index 38d133d7700..00000000000
--- a/tests/corelib_2/iterable_take_while_test.dart
+++ /dev/null
@@ -1,132 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  List<int> list1 = <int>[1, 2, 3];
-  List<int> list2 = const <int>[4, 5];
-  List<String> list3 = <String>[];
-  Set<int> set1 = new Set<int>();
-  set1..add(11)..add(12)..add(13);
-  Set set2 = new Set();
-
-  Iterable<int> takeWhileFalse = list1.takeWhile((x) => false);
-  Iterator<int> it = takeWhileFalse.iterator;
-  Expect.isNull(it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  Iterable<int> takeWhileOdd = list1.takeWhile((x) => x.isOdd);
-  it = takeWhileOdd.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(1, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  Iterable<int> takeWhileLessThan3 = list1.takeWhile((x) => x < 3);
-  it = takeWhileLessThan3.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(1, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(2, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  Iterable<int> takeEverything = list1.takeWhile((x) => true);
-  it = takeEverything.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(1, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(2, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(3, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  Iterable<int> takeWhileEven = list1.takeWhile((x) => x.isEven);
-  it = takeWhileFalse.iterator;
-  Expect.isNull(it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  takeWhileFalse = list2.takeWhile((x) => false);
-  it = takeWhileFalse.iterator;
-  Expect.isNull(it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  takeWhileEven = list2.takeWhile((x) => x.isEven);
-  it = takeWhileEven.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(4, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  takeEverything = list2.takeWhile((x) => true);
-  it = takeEverything.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(4, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(5, it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  Iterable<String> takeWhileFalse2 = list3.takeWhile((x) => false);
-  Iterator<String> it2 = takeWhileFalse2.iterator;
-  Expect.isNull(it2.current);
-  Expect.isFalse(it2.moveNext());
-  Expect.isNull(it2.current);
-
-  Iterable<String> takeEverything2 = list3.takeWhile((x) => true);
-  it2 = takeEverything2.iterator;
-  Expect.isNull(it2.current);
-  Expect.isFalse(it2.moveNext());
-  Expect.isNull(it2.current);
-
-  takeWhileFalse = set1.takeWhile((x) => false);
-  it = takeWhileFalse.iterator;
-  Expect.isNull(it.current);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  takeEverything = set1.takeWhile((x) => true);
-  List<int> copied = takeEverything.toList();
-  Expect.equals(3, copied.length);
-  Expect.isTrue(set1.contains(copied[0]));
-  Expect.isTrue(set1.contains(copied[1]));
-  Expect.isTrue(set1.contains(copied[1]));
-  Expect.isTrue(copied[0] != copied[1]);
-  Expect.isTrue(copied[0] != copied[2]);
-  Expect.isTrue(copied[1] != copied[2]);
-  it = takeEverything.iterator;
-  Expect.isNull(it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.isTrue(it.current != null);
-  Expect.isTrue(it.moveNext());
-  Expect.isTrue(it.current != null);
-  Expect.isTrue(it.moveNext());
-  Expect.isTrue(it.current != null);
-  Expect.isFalse(it.moveNext());
-  Expect.isNull(it.current);
-
-  var dynamicTakeWhileFalse = set2.takeWhile((x) => false);
-  var dynamicIt = dynamicTakeWhileFalse.iterator;
-  Expect.isNull(dynamicIt.current);
-  Expect.isFalse(dynamicIt.moveNext());
-  Expect.isNull(dynamicIt.current);
-
-  var dynamicTakeEverything = set2.takeWhile((x) => true);
-  dynamicIt = dynamicTakeEverything.iterator;
-  Expect.isNull(dynamicIt.current);
-  Expect.isFalse(dynamicIt.moveNext());
-  Expect.isNull(dynamicIt.current);
-}
diff --git a/tests/corelib_2/iterable_test.dart b/tests/corelib_2/iterable_test.dart
deleted file mode 100644
index 827354da2eb..00000000000
--- a/tests/corelib_2/iterable_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js where [List.addAll] was not typed
-// correctly.
-
-import "package:expect/expect.dart";
-
-import 'dart:collection';
-
-class MyIterable extends IterableBase {
-  get iterator => [].iterator;
-}
-
-main() {
-  Expect.isTrue(([]..addAll(new MyIterable())).isEmpty);
-}
diff --git a/tests/corelib_2/iterable_to_list_test.dart b/tests/corelib_2/iterable_to_list_test.dart
deleted file mode 100644
index e8316a59195..00000000000
--- a/tests/corelib_2/iterable_to_list_test.dart
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:collection" show Queue;
-import "dart:typed_data" show Uint8List, Float32List;
-import "package:expect/expect.dart";
-
-main() {
-  // testIterable takes an iterable and a list expected to be equal to
-  // the iterable's toList result, including the type parameter of the list.
-  testIterable(<dynamic>[], <dynamic>[]);
-  testIterable(<int>[], <int>[]);
-  testIterable(<String>[], <String>[]);
-  testIterable([1, 2, 3], [1, 2, 3]);
-  testIterable(<int>[1, 2, 3], <int>[1, 2, 3]);
-  testIterable(const [1, 2], [1, 2]);
-  testIterable(const <int>[1, 2], <int>[1, 2]);
-  testIterable(<dynamic, dynamic>{"x": 1, "y": 1}.keys, <dynamic>["x", "y"]);
-  testIterable(<String, int>{"x": 1, "y": 1}.keys, <String>["x", "y"]);
-  testIterable(<dynamic, dynamic>{"x": 2, "y": 3}.values, <dynamic>[2, 3]);
-  testIterable(<String, int>{"x": 2, "y": 3}.values, <int>[2, 3]);
-  testIterable(new Iterable.generate(3), [0, 1, 2]);
-  testIterable(new Iterable<int>.generate(3), <int>[0, 1, 2]);
-  testIterable(
-      new Iterable<String>.generate(3, (x) => "$x"), <String>["0", "1", "2"]);
-  testIterable(new Set.from([1, 2, 3]), [1, 2, 3]);
-  testIterable(new Set<int>.from([1, 2, 3]), <int>[1, 2, 3]);
-  testIterable(new Queue.from([1, 2, 3]), [1, 2, 3]);
-  testIterable(new Queue<int>.from(<int>[1, 2, 3]), <int>[1, 2, 3]);
-  testIterable(new Uint8List.fromList(<int>[1, 2, 3]), //    //# 01: ok
-      <int>[1, 2, 3]); //                                    //# 01: continued
-  testIterable(new Float32List.fromList([1.0, 2.0, 3.0]), // //# 01: continued
-      <double>[1.0, 2.0, 3.0]); //                           //# 01: continued
-  testIterable("abc".codeUnits, <int>[97, 98, 99]); //       //# 01: continued
-  testIterable("abc".runes, <int>[97, 98, 99]);
-}
-
-testIterable(Iterable iterable, List expected, [int depth = 0]) {
-  print(" " * depth + "${iterable.runtimeType} vs ${expected.runtimeType}");
-  test(iterable, expected);
-  test(iterable, expected, growable: true);
-  test(iterable, expected, growable: false);
-  if (depth < 2) {
-    depth++;
-    testIterable(iterable.map((x) => x), new List.from(expected), depth);
-    testIterable(iterable.where((x) => true), expected, depth);
-    testIterable(iterable.expand((x) => [x]), new List.from(expected), depth);
-    testIterable(iterable.map((x) => x), new List.from(expected), depth);
-    testIterable(iterable.skipWhile((x) => false), expected, depth);
-    testIterable(iterable.takeWhile((x) => true), expected, depth);
-    testIterable(iterable.skip(0), expected, depth);
-    testIterable(iterable.take(expected.length * 2), expected, depth);
-    testIterable(iterable.toSet(), expected, depth);
-  }
-}
-
-test(Iterable iterable, List expected, {bool growable: true}) {
-  var list = iterable.toList(growable: growable);
-  Expect.listEquals(expected, list);
-  Expect.equals(expected is List<int>, list is List<int>, "int");
-  Expect.equals(expected is List<double>, list is List<double>, "double");
-  Expect.equals(expected is List<String>, list is List<String>, "str");
-  if (growable) {
-    int length = list.length;
-    list.add(null);
-    Expect.equals(length + 1, list.length);
-  } else {
-    Expect.throws(() {
-      list.add(null);
-    });
-  }
-}
diff --git a/tests/corelib_2/iterable_to_set_test.dart b/tests/corelib_2/iterable_to_set_test.dart
deleted file mode 100644
index f44eb21bc93..00000000000
--- a/tests/corelib_2/iterable_to_set_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  List<int> list1 = <int>[1, 2, 3];
-  List<int> list2 = const <int>[4, 4];
-  List<String> list3 = <String>[];
-  Set<int> set1 = new Set<int>();
-  set1..add(11)..add(12)..add(13);
-  Set<String> set2 = new Set<String>();
-  set2..add("foo")..add("bar")..add("toto");
-  Set set3 = new Set();
-
-  var setCopy = list1.toSet();
-  Expect.equals(3, setCopy.length);
-  Expect.isTrue(setCopy.contains(1));
-  Expect.isTrue(setCopy.contains(2));
-  Expect.isTrue(setCopy.contains(3));
-  Expect.isTrue(setCopy is Set<int>);
-  Expect.isFalse(setCopy is Set<String>);
-
-  setCopy = list2.toSet();
-  Expect.equals(1, setCopy.length);
-  Expect.isTrue(setCopy.contains(4));
-  Expect.isTrue(setCopy is Set<int>);
-  Expect.isFalse(setCopy is Set<String>);
-
-  var setStrCopy = list3.toSet();
-  Expect.isTrue(setStrCopy.isEmpty);
-  Expect.isTrue(setStrCopy is Set<String>);
-  Expect.isFalse(setStrCopy is Set<int>);
-
-  setCopy = set1.toSet();
-  Expect.setEquals(set1, setCopy);
-  Expect.isTrue(setCopy is Set<int>);
-  Expect.isFalse(setCopy is Set<String>);
-  Expect.isFalse(identical(setCopy, set1));
-
-  setStrCopy = set2.toSet();
-  Expect.setEquals(set2, setStrCopy);
-  Expect.isTrue(setStrCopy is Set<String>);
-  Expect.isFalse(setStrCopy is Set<int>);
-  Expect.isFalse(identical(setStrCopy, set2));
-
-  var set3Copy = set3.toSet();
-  Expect.setEquals(set3, set3Copy);
-  Expect.isTrue(set3Copy is Set);
-  Expect.isFalse(set3Copy is Set<String>);
-  Expect.isFalse(set3Copy is Set<int>);
-  Expect.isFalse(identical(set3Copy, set3));
-}
diff --git a/tests/corelib_2/iterable_tostring_test.dart b/tests/corelib_2/iterable_tostring_test.dart
deleted file mode 100644
index bb85a1efcfb..00000000000
--- a/tests/corelib_2/iterable_tostring_test.dart
+++ /dev/null
@@ -1,108 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test the IterableBase/IterableMixin toString method.
-
-import "package:expect/expect.dart";
-import "dart:collection";
-
-String mkIt(int len, [func]) {
-  var list;
-  if (func == null) {
-    list = new List.generate(len, (x) => x);
-  } else {
-    list = new List.generate(len, func);
-  }
-  return new MyIterable(list).toString();
-}
-
-class MyIterable extends IterableBase {
-  final Iterable _base;
-  MyIterable(this._base);
-  Iterator get iterator => _base.iterator;
-}
-
-void main() {
-  Expect.equals("()", mkIt(0));
-  Expect.equals("(0)", mkIt(1));
-  Expect.equals("(0, 1)", mkIt(2));
-  Expect.equals("(0, 1, 2, 3, 4, 5, 6, 7, 8)", mkIt(9));
-
-  // Builds string up to 60 characters, then finishes with last two
-  // elements.
-  Expect.equals(
-      //0123456789012345678901234567890123456789 - 40 characters
-      "(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 1"
-      "2, 13, 14, 15, 16, 17, 18, ..., 98, 99)",
-      mkIt(100));
-
-  Expect.equals(
-      //0123456789012345678901234567890123456789
-      "(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 1"
-      "2, 13, 14, 15, 16, 17, 18)",
-      mkIt(19));
-
-  Expect.equals(
-      //0123456789012345678901234567890123456789
-      "(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 1"
-      "2, 13, 14, 15, 16, 17, 18, 19)",
-      mkIt(20));
-
-  Expect.equals(
-      //0123456789012345678901234567890123456789
-      "(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 1"
-      "2, 13, 14, 15, 16, 17, 18, 19, 20)",
-      mkIt(21));
-
-  // Don't show last two elements if more than 100 elements total
-  // (can't be 100 elements in 80 characters including commas).
-  Expect.equals(
-      //0123456789012345678901234567890123456789
-      "(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 1"
-      "2, 13, 14, 15, 16, 17, 18, 19, 20, ...)",
-      mkIt(101));
-
-  // If last two elements bring total over 80 characters, drop some of
-  // the previous ones as well.
-
-  Expect.equals(
-      //0123456789012345678901234567890123456789
-      "(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 1"
-      "2, 13, ..., 18, xxxxxxxxxxxxxxxxxxxx)",
-      mkIt(20, (x) => x == 19 ? "xxxxxxxxxxxxxxxxxxxx" : "$x"));
-
-  // Never drop the first three or the last two.
-  Expect.equals(
-      //0123456789012345678901234567890123456789
-      "(xxxxxxxxxxxxxxxxx, xxxxxxxxxxxxxxxxx, x"
-      "xxxxxxxxxxxxxxxx, ..., 18, xxxxxxxxxxxxx"
-      "xxxx)",
-      mkIt(20, (x) => (x < 3 || x == 19) ? "xxxxxxxxxxxxxxxxx" : "$x"));
-
-  // Never drop the first three or the last two.
-  Expect.equals(
-      //0123456789012345678901234567890123456789
-      "(xxxxxxxxxxxxxxxxx, xxxxxxxxxxxxxxxxx, x"
-      "xxxxxxxxxxxxxxxx, ..., xxxxxxxxxxxxxxxxx"
-      ", 19)",
-      mkIt(20, (x) => (x < 3 || x == 18) ? "xxxxxxxxxxxxxxxxx" : "$x"));
-
-  // If the first three are very long, always include them anyway.
-  Expect.equals(
-      //0123456789012345678901234567890123456789
-      "(xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx,"
-      " xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx,"
-      " xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx,"
-      " ..., 98, 99)",
-      mkIt(100,
-          (x) => (x < 3) ? "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" : "$x"));
-
-  Expect.equals(
-      //0123456789012345678901234567890123456789
-      "(, , , , , , , , , , , , , , , , , , , ,"
-      " , , , , , , , , , , , , , , , ..., , )",
-      mkIt(100, (_) => ""));
-}
diff --git a/tests/corelib_2/iterable_where_type_test.dart b/tests/corelib_2/iterable_where_type_test.dart
deleted file mode 100644
index e9d7e23141c..00000000000
--- a/tests/corelib_2/iterable_where_type_test.dart
+++ /dev/null
@@ -1,107 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:collection" show Queue;
-import "dart:typed_data" show Int32List;
-
-import "package:expect/expect.dart";
-
-// Tests behavior of result of an operation on a followedBy iterable.
-test(List expects, Iterable iterable, [String name]) {
-  try {
-    Expect.isFalse(iterable is List, "$name is! List");
-    Expect.isFalse(iterable is Set, "$name is! Set");
-    Expect.isFalse(iterable is Queue, "$name is! Queue");
-    if (expects.isNotEmpty) {
-      Expect.equals(expects.first, iterable.first, "$name: first");
-      Expect.equals(expects.last, iterable.last, "$name: last");
-    } else {
-      Expect.throwsStateError(() => iterable.first, "$name: first");
-      Expect.throwsStateError(() => iterable.last, "$name: last");
-    }
-    var it = iterable.iterator;
-    for (int index = 0; index < expects.length; index++) {
-      Expect.isTrue(it.moveNext(), "$name: has element $index");
-      var expect = expects[index];
-      Expect.equals(expect, it.current, "$name at $index");
-      Expect.equals(
-          expect, iterable.elementAt(index), "$name: elementAt($index)");
-      Expect.isTrue(iterable.contains(expect), "$name:contains $index");
-    }
-    Expect.isFalse(it.moveNext(),
-        "$name: extra element at ${expects.length}: ${it.current}");
-  } on Error {
-    print("Failed during: $name");
-    rethrow;
-  }
-}
-
-main() {
-  var conversions = <String, Iterable<int> Function(List<int>)>{
-    "const": toConst,
-    "list": toList,
-    "unmod": toUnmodifiable,
-    "set": toSet,
-    "queue": toQueue,
-    "eff-len-iter": toELIter,
-    "non-eff-iter": toNEIter,
-    "typed": toTyped,
-    "keys": toKeys,
-    "values": toValues,
-  };
-  for (var data in [
-    const <int>[],
-    const <int>[1],
-    const <int>[1, 2, 3]
-  ]) {
-    conversions.forEach((name, c) {
-      test(data, c(data).whereType<int>(), "$name#${data.length}.wt<int>");
-      test(data, c(data).whereType<num>(), "$name#${data.length}.wt<num>");
-      test([], c(data).whereType<Null>(), "$name#${data.length}.wt<Null>");
-    });
-  }
-
-  test([1, 0.1], ["a", 1, new Object(), 0.1, null].whereType<num>(), "mixed");
-
-  var o = new Object();
-  var a = new A();
-  var b = new B();
-  var c = new C();
-  var d = new D();
-  var n = null;
-  test([o, a, b, c, d, n], [o, a, b, c, d, n].whereType<Object>(), "Object");
-  test([a, b, c, d], [o, a, b, c, d, n].whereType<A>(), "A");
-  test([b, d], [o, a, b, c, d, n].whereType<B>(), "B");
-  test([c, d], [o, a, b, c, d, n].whereType<C>(), "C");
-  test([d], [o, a, b, c, d, n].whereType<D>(), "D");
-  test([n], [o, a, b, c, d, n].whereType<Null>(), "Null");
-
-  test([d], <B>[d].whereType<C>(), "Unrelated");
-}
-
-class A {}
-
-class B implements A {}
-
-class C implements A {}
-
-class D implements B, C {}
-
-List<int> toConst(List<int> elements) => elements; // Argument is const.
-List<int> toList(List<int> elements) => elements.toList();
-List<int> toUnmodifiable(List<int> elements) =>
-    new List<int>.unmodifiable(elements);
-Set<int> toSet(List<int> elements) => elements.toSet();
-Queue<int> toQueue(List<int> elements) => new Queue<int>.from(elements);
-// Creates an efficient-length iterable.
-Iterable<int> toELIter(List<int> elements) => elements.map<int>((x) => x);
-// Creates a non-efficient-length iterable.
-Iterable<int> toNEIter(List<int> elements) => elements.where((x) => true);
-List<int> toTyped(List<int> elements) => new Int32List.fromList(elements);
-Iterable<int> toKeys(List<int> elements) =>
-    new Map<int, int>.fromIterables(elements, elements).keys;
-Iterable<int> toValues(List<int> elements) =>
-    new Map<int, int>.fromIterables(elements, elements).values;
diff --git a/tests/corelib_2/json_map_test.dart b/tests/corelib_2/json_map_test.dart
deleted file mode 100644
index d2e2723a4f2..00000000000
--- a/tests/corelib_2/json_map_test.dart
+++ /dev/null
@@ -1,345 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library json_map_test;
-
-import "package:expect/expect.dart";
-import 'dart:convert' show json;
-import 'dart:collection' show LinkedHashMap, HashMap;
-
-bool useReviver = false;
-Map<String, dynamic> jsonify(Map map) {
-  String encoded = json.encode(map);
-  return useReviver
-      ? json.decode(encoded, reviver: (key, value) => value)
-      : json.decode(encoded);
-}
-
-List listEach(Map map) {
-  var result = [];
-  map.forEach((key, value) {
-    result.add(key);
-    result.add(value);
-  });
-  return result;
-}
-
-void main() {
-  test(false);
-  test(true);
-}
-
-void test(bool revive) {
-  useReviver = revive;
-  testEmpty(jsonify({}));
-  testAtoB(jsonify({'a': 'b'}));
-
-  // You can write 'Map<String, dynamic>' here (or 'var' which infers the
-  // same), but if you write just 'Map' as the type, then the type of the
-  // constant argument in the addAll below is not inferred correctly.
-  var map = jsonify({});
-  map['a'] = 'b';
-  testAtoB(map);
-
-  map = jsonify({});
-  Expect.equals('b', map.putIfAbsent('a', () => 'b'));
-  testAtoB(map);
-
-  map = jsonify({});
-  map.addAll({'a': 'b'});
-  testAtoB(map);
-
-  testOrder(['a', 'b', 'c', 'd', 'e', 'f']);
-
-  testProto();
-  testToString();
-  testConcurrentModifications();
-  testType();
-  testClear();
-
-  testListEntry();
-  testMutation();
-}
-
-void testEmpty(Map map) {
-  for (int i = 0; i < 2; i++) {
-    Expect.equals(0, map.length);
-    Expect.isTrue(map.isEmpty);
-    Expect.isFalse(map.isNotEmpty);
-    Expect.listEquals([], map.keys.toList());
-    Expect.listEquals([], map.values.toList());
-    Expect.isNull(map['a']);
-    Expect.listEquals([], listEach(map));
-    Expect.isFalse(map.containsKey('a'));
-    Expect.isFalse(map.containsValue('a'));
-    Expect.isNull(map.remove('a'));
-    testLookupNonExistingKeys(map);
-    testLookupNonExistingValues(map);
-    map.clear();
-  }
-}
-
-void testAtoB(Map map) {
-  Expect.equals(1, map.length);
-  Expect.isFalse(map.isEmpty);
-  Expect.isTrue(map.isNotEmpty);
-  Expect.listEquals(['a'], map.keys.toList());
-  Expect.listEquals(['b'], map.values.toList());
-  Expect.equals('b', map['a']);
-  Expect.listEquals(['a', 'b'], listEach(map));
-  Expect.isTrue(map.containsKey('a'));
-  Expect.isFalse(map.containsKey('b'));
-  Expect.isTrue(map.containsValue('b'));
-  Expect.isFalse(map.containsValue('a'));
-
-  testLookupNonExistingKeys(map);
-  testLookupNonExistingValues(map);
-  Expect.equals('b', map.remove('a'));
-  Expect.isNull(map.remove('b'));
-  testLookupNonExistingKeys(map);
-  testLookupNonExistingValues(map);
-
-  map.clear();
-  testEmpty(map);
-}
-
-void testLookupNonExistingKeys(Map map) {
-  for (String key in ['__proto__', 'null', null]) {
-    Expect.isNull(map[key]);
-    Expect.isFalse(map.containsKey(key));
-  }
-}
-
-void testLookupNonExistingValues(Map map) {
-  for (var value in ['__proto__', 'null', null]) {
-    Expect.isFalse(map.containsValue(value));
-  }
-}
-
-void testOrder(List list) {
-  if (list.isEmpty)
-    return;
-  else
-    testOrder(list.skip(1).toList());
-
-  Map original = {};
-  for (int i = 0; i < list.length; i++) {
-    original[list[i]] = i;
-  }
-
-  Map map = jsonify(original);
-  Expect.equals(list.length, map.length);
-  Expect.listEquals(list, map.keys.toList());
-
-  for (int i = 0; i < 10; i++) {
-    map["$i"] = i;
-    Expect.equals(list.length + i + 1, map.length);
-    Expect.listEquals(list, map.keys.take(list.length).toList());
-  }
-}
-
-void testProto() {
-  Map map = jsonify({'__proto__': 0});
-  Expect.equals(1, map.length);
-  Expect.isTrue(map.containsKey('__proto__'));
-  Expect.listEquals(['__proto__'], map.keys.toList());
-  Expect.equals(0, map['__proto__']);
-  Expect.equals(0, map.remove('__proto__'));
-  testEmpty(map);
-
-  map = jsonify({'__proto__': null});
-  Expect.equals(1, map.length);
-  Expect.isTrue(map.containsKey('__proto__'));
-  Expect.listEquals(['__proto__'], map.keys.toList());
-  Expect.isNull(map['__proto__']);
-  Expect.isNull(map.remove('__proto__'));
-  testEmpty(map);
-}
-
-void testToString() {
-  Expect.equals("{}", jsonify({}).toString());
-  Expect.equals("{a: 0}", jsonify({'a': 0}).toString());
-}
-
-void testConcurrentModifications() {
-  void testIterate(Map map, Iterable iterable, Function f) {
-    Iterator iterator = iterable.iterator;
-    f(map);
-    iterator.moveNext();
-  }
-
-  void testKeys(Map map, Function f) => testIterate(map, map.keys, f);
-  void testValues(Map map, Function f) => testIterate(map, map.values, f);
-
-  void testForEach(Map map, Function f) {
-    map.forEach((key, value) {
-      f(map);
-    });
-  }
-
-  bool throwsCME(Function f) {
-    try {
-      f();
-    } on ConcurrentModificationError catch (e) {
-      return true;
-    } catch (e) {
-      return false;
-    }
-    return false;
-  }
-
-  Map map = {};
-  Expect.isTrue(throwsCME(() => testKeys(jsonify(map), (map) => map['a'] = 0)));
-  Expect
-      .isTrue(throwsCME(() => testValues(jsonify(map), (map) => map['a'] = 0)));
-  Expect.isFalse(
-      throwsCME(() => testForEach(jsonify(map), (map) => map['a'] = 0)));
-
-  Expect.isFalse(throwsCME(() => testKeys(jsonify(map), (map) => map.clear())));
-  Expect
-      .isFalse(throwsCME(() => testValues(jsonify(map), (map) => map.clear())));
-  Expect.isFalse(
-      throwsCME(() => testForEach(jsonify(map), (map) => map.clear())));
-
-  Expect.isFalse(
-      throwsCME(() => testKeys(jsonify(map), (map) => map.remove('a'))));
-  Expect.isFalse(
-      throwsCME(() => testValues(jsonify(map), (map) => map.remove('a'))));
-  Expect.isFalse(
-      throwsCME(() => testForEach(jsonify(map), (map) => map.remove('a'))));
-
-  Expect.isTrue(throwsCME(
-      () => testKeys(jsonify(map), (map) => map.putIfAbsent('a', () => 0))));
-  Expect.isTrue(throwsCME(
-      () => testValues(jsonify(map), (map) => map.putIfAbsent('a', () => 0))));
-  Expect.isFalse(throwsCME(
-      () => testForEach(jsonify(map), (map) => map.putIfAbsent('a', () => 0))));
-
-  Expect.isFalse(
-      throwsCME(() => testKeys(jsonify(map), (map) => map.addAll({}))));
-  Expect.isFalse(
-      throwsCME(() => testValues(jsonify(map), (map) => map.addAll({}))));
-  Expect.isFalse(
-      throwsCME(() => testForEach(jsonify(map), (map) => map.addAll({}))));
-
-  Expect.isTrue(
-      throwsCME(() => testKeys(jsonify(map), (map) => map.addAll({'a': 0}))));
-  Expect.isTrue(
-      throwsCME(() => testValues(jsonify(map), (map) => map.addAll({'a': 0}))));
-  Expect.isFalse(throwsCME(
-      () => testForEach(jsonify(map), (map) => map.addAll({'a': 0}))));
-
-  map = {'a': 1};
-  Expect
-      .isFalse(throwsCME(() => testKeys(jsonify(map), (map) => map['a'] = 0)));
-  Expect.isFalse(
-      throwsCME(() => testValues(jsonify(map), (map) => map['a'] = 0)));
-  Expect.isFalse(
-      throwsCME(() => testForEach(jsonify(map), (map) => map['a'] = 0)));
-
-  Expect.isTrue(throwsCME(() => testKeys(jsonify(map), (map) => map['b'] = 0)));
-  Expect
-      .isTrue(throwsCME(() => testValues(jsonify(map), (map) => map['b'] = 0)));
-  Expect.isTrue(
-      throwsCME(() => testForEach(jsonify(map), (map) => map['b'] = 0)));
-
-  Expect.isTrue(throwsCME(() => testKeys(jsonify(map), (map) => map.clear())));
-  Expect
-      .isTrue(throwsCME(() => testValues(jsonify(map), (map) => map.clear())));
-  Expect
-      .isTrue(throwsCME(() => testForEach(jsonify(map), (map) => map.clear())));
-
-  Expect.isTrue(
-      throwsCME(() => testKeys(jsonify(map), (map) => map.remove('a'))));
-  Expect.isTrue(
-      throwsCME(() => testValues(jsonify(map), (map) => map.remove('a'))));
-  Expect.isTrue(
-      throwsCME(() => testForEach(jsonify(map), (map) => map.remove('a'))));
-
-  Expect.isFalse(
-      throwsCME(() => testKeys(jsonify(map), (map) => map.remove('b'))));
-  Expect.isFalse(
-      throwsCME(() => testValues(jsonify(map), (map) => map.remove('b'))));
-  Expect.isFalse(
-      throwsCME(() => testForEach(jsonify(map), (map) => map.remove('b'))));
-
-  Expect.isFalse(throwsCME(
-      () => testKeys(jsonify(map), (map) => map.putIfAbsent('a', () => 0))));
-  Expect.isFalse(throwsCME(
-      () => testValues(jsonify(map), (map) => map.putIfAbsent('a', () => 0))));
-  Expect.isFalse(throwsCME(
-      () => testForEach(jsonify(map), (map) => map.putIfAbsent('a', () => 0))));
-
-  Expect.isTrue(throwsCME(
-      () => testKeys(jsonify(map), (map) => map.putIfAbsent('b', () => 0))));
-  Expect.isTrue(throwsCME(
-      () => testValues(jsonify(map), (map) => map.putIfAbsent('b', () => 0))));
-  Expect.isTrue(throwsCME(
-      () => testForEach(jsonify(map), (map) => map.putIfAbsent('b', () => 0))));
-
-  Expect.isFalse(
-      throwsCME(() => testKeys(jsonify(map), (map) => map.addAll({}))));
-  Expect.isFalse(
-      throwsCME(() => testValues(jsonify(map), (map) => map.addAll({}))));
-  Expect.isFalse(
-      throwsCME(() => testForEach(jsonify(map), (map) => map.addAll({}))));
-
-  Expect.isFalse(
-      throwsCME(() => testKeys(jsonify(map), (map) => map.addAll({'a': 0}))));
-  Expect.isFalse(
-      throwsCME(() => testValues(jsonify(map), (map) => map.addAll({'a': 0}))));
-  Expect.isFalse(throwsCME(
-      () => testForEach(jsonify(map), (map) => map.addAll({'a': 0}))));
-
-  Expect.isTrue(
-      throwsCME(() => testKeys(jsonify(map), (map) => map.addAll({'b': 0}))));
-  Expect.isTrue(
-      throwsCME(() => testValues(jsonify(map), (map) => map.addAll({'b': 0}))));
-  Expect.isTrue(throwsCME(
-      () => testForEach(jsonify(map), (map) => map.addAll({'b': 0}))));
-}
-
-void testType() {
-  var map = jsonify({});
-  var type = "${map.runtimeType}";
-
-  // The documentation of json.decode doesn't actually specify that it returns
-  // a map (it's marked dynamic), but it's a reasonable expectation if you
-  // don't provide a reviver function.
-  Expect.isTrue(map is Map, type);
-  Expect.isTrue(map is Map<String, dynamic>, type);
-  Expect.isFalse(map is Map<int, dynamic>, type);
-}
-
-void testClear() {
-  Map map = jsonify({'a': 0});
-  map.clear();
-  Expect.equals(0, map.length);
-}
-
-void testListEntry() {
-  Map map = jsonify({
-    'a': [
-      7,
-      8,
-      {'b': 9}
-    ]
-  });
-  List list = map['a'];
-  Expect.equals(3, list.length);
-  Expect.equals(7, list[0]);
-  Expect.equals(8, list[1]);
-  Expect.equals(9, list[2]['b']);
-}
-
-void testMutation() {
-  Map map = jsonify({'a': 0});
-  Expect.listEquals(['a', 0], listEach(map));
-  map['a'] = 1;
-  Expect.listEquals(['a', 1], listEach(map));
-  map['a']++;
-  Expect.listEquals(['a', 2], listEach(map));
-}
diff --git a/tests/corelib_2/linked_hash_map_from_iterable_test.dart b/tests/corelib_2/linked_hash_map_from_iterable_test.dart
deleted file mode 100644
index ae46abcf1f6..00000000000
--- a/tests/corelib_2/linked_hash_map_from_iterable_test.dart
+++ /dev/null
@@ -1,119 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-
-main() {
-  defaultFunctionValuesTest();
-  defaultKeyFunctionTest();
-  defaultValueFunctionTest();
-  noDefaultValuesTest();
-  emptyIterableTest();
-  equalElementsTest();
-  genericTypeTest();
-}
-
-void defaultFunctionValuesTest() {
-  var map = new LinkedHashMap.fromIterable([1, 2, 3]);
-
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is LinkedHashMap);
-
-  Expect.equals(3, map.length);
-  Expect.equals(3, map.keys.length);
-  Expect.equals(3, map.values.length);
-
-  Expect.equals(1, map[1]);
-  Expect.equals(2, map[2]);
-  Expect.equals(3, map[3]);
-}
-
-void defaultKeyFunctionTest() {
-  var map = new LinkedHashMap.fromIterable([1, 2, 3], value: (x) => x + 1);
-
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is LinkedHashMap);
-
-  Expect.equals(3, map.length);
-  Expect.equals(3, map.keys.length);
-  Expect.equals(3, map.values.length);
-
-  Expect.equals(2, map[1]);
-  Expect.equals(3, map[2]);
-  Expect.equals(4, map[3]);
-}
-
-void defaultValueFunctionTest() {
-  var map = new LinkedHashMap.fromIterable([1, 2, 3], key: (x) => x + 1);
-
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is LinkedHashMap);
-
-  Expect.equals(3, map.length);
-  Expect.equals(3, map.keys.length);
-  Expect.equals(3, map.values.length);
-
-  Expect.equals(1, map[2]);
-  Expect.equals(2, map[3]);
-  Expect.equals(3, map[4]);
-}
-
-void noDefaultValuesTest() {
-  var map = new LinkedHashMap.fromIterable([1, 2, 3],
-      key: (x) => x + 1, value: (x) => x - 1);
-
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is LinkedHashMap);
-
-  Expect.equals(3, map.length);
-  Expect.equals(3, map.keys.length);
-  Expect.equals(3, map.values.length);
-
-  Expect.equals(0, map[2]);
-  Expect.equals(1, map[3]);
-  Expect.equals(2, map[4]);
-}
-
-void emptyIterableTest() {
-  var map = new LinkedHashMap.fromIterable([]);
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is LinkedHashMap);
-
-  Expect.equals(0, map.length);
-  Expect.equals(0, map.keys.length);
-  Expect.equals(0, map.values.length);
-}
-
-void equalElementsTest() {
-  var map = new LinkedHashMap.fromIterable([1, 2, 2], key: (x) => x + 1);
-
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is LinkedHashMap);
-
-  Expect.equals(2, map.length);
-  Expect.equals(2, map.keys.length);
-  Expect.equals(2, map.values.length);
-
-  Expect.equals(1, map[2]);
-  Expect.equals(2, map[3]);
-}
-
-void genericTypeTest() {
-  dynamic map = new LinkedHashMap<int, String>.fromIterable(<int>[1, 2, 3],
-      value: (x) => '$x');
-  Expect.isTrue(map is Map<int, String>);
-  Expect.isTrue(map is LinkedHashMap<int, String>);
-
-  map = new LinkedHashMap<String, String>.fromIterable(<int>[1, 2, 3],
-      key: (x) => '$x', value: (x) => '$x');
-  Expect.isTrue(map is Map<String, String>);
-  Expect.isTrue(map is LinkedHashMap<String, String>);
-
-  // Make sure it is not just LinkedHashMap<dynamic, dynamic>.
-  Expect.isFalse(map is LinkedHashMap<int, dynamic>);
-  Expect.isFalse(map is LinkedHashMap<dynamic, int>);
-}
diff --git a/tests/corelib_2/linked_hash_map_from_iterables_test.dart b/tests/corelib_2/linked_hash_map_from_iterables_test.dart
deleted file mode 100644
index 4c7cb848011..00000000000
--- a/tests/corelib_2/linked_hash_map_from_iterables_test.dart
+++ /dev/null
@@ -1,81 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-
-main() {
-  positiveTest();
-  emptyMapTest();
-  fewerKeysIterableTest();
-  fewerValuesIterableTest();
-  equalElementsTest();
-  genericTypeTest();
-}
-
-void positiveTest() {
-  var map = new LinkedHashMap.fromIterables([1, 2, 3], ["one", "two", "three"]);
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is LinkedHashMap);
-
-  Expect.equals(3, map.length);
-  Expect.equals(3, map.keys.length);
-  Expect.equals(3, map.values.length);
-
-  Expect.equals("one", map[1]);
-  Expect.equals("two", map[2]);
-  Expect.equals("three", map[3]);
-}
-
-void emptyMapTest() {
-  var map = new LinkedHashMap.fromIterables([], []);
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is LinkedHashMap);
-
-  Expect.equals(0, map.length);
-  Expect.equals(0, map.keys.length);
-  Expect.equals(0, map.values.length);
-}
-
-void fewerValuesIterableTest() {
-  Expect.throws(() => new LinkedHashMap.fromIterables([1, 2], [0]));
-}
-
-void fewerKeysIterableTest() {
-  Expect.throws(() => new LinkedHashMap.fromIterables([1], [0, 2]));
-}
-
-void equalElementsTest() {
-  var map = new LinkedHashMap.fromIterables([1, 2, 2], ["one", "two", "three"]);
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is LinkedHashMap);
-
-  Expect.equals(2, map.length);
-  Expect.equals(2, map.keys.length);
-  Expect.equals(2, map.values.length);
-
-  Expect.equals("one", map[1]);
-  Expect.equals("three", map[2]);
-}
-
-void genericTypeTest() {
-  var map = new LinkedHashMap<int, String>.fromIterables(
-      [1, 2, 3], ["one", "two", "three"]);
-  Expect.isTrue(map is Map<int, String>);
-  Expect.isTrue(map is LinkedHashMap<int, String>);
-
-  // Make sure it is not just LinkedHashMap<dynamic, dynamic>.
-  Expect.isFalse(map is LinkedHashMap<String, dynamic>);
-  Expect.isFalse(map is LinkedHashMap<dynamic, int>);
-
-  Expect.equals(3, map.length);
-  Expect.equals(3, map.keys.length);
-  Expect.equals(3, map.values.length);
-
-  Expect.equals("one", map[1]);
-  Expect.equals("two", map[2]);
-  Expect.equals("three", map[3]);
-}
diff --git a/tests/corelib_2/linked_hash_map_test.dart b/tests/corelib_2/linked_hash_map_test.dart
deleted file mode 100644
index 6764151b484..00000000000
--- a/tests/corelib_2/linked_hash_map_test.dart
+++ /dev/null
@@ -1,118 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test for linked hash-maps.
-library linkedHashMap.test;
-
-import "package:expect/expect.dart";
-import 'dart:collection' show LinkedHashMap;
-
-class LinkedHashMapTest {
-  static void testMain() {
-    Map map = new LinkedHashMap();
-    map["a"] = 1;
-    map["b"] = 2;
-    map["c"] = 3;
-    map["d"] = 4;
-    map["e"] = 5;
-
-    List<String> keys = new List<String>.filled(5, null);
-    List<int> values = new List<int>.filled(5, null);
-
-    int index;
-
-    clear() {
-      index = 0;
-      for (int i = 0; i < keys.length; i++) {
-        keys[i] = null;
-        values[i] = null;
-      }
-    }
-
-    verifyKeys(List<String> correctKeys) {
-      for (int i = 0; i < correctKeys.length; i++) {
-        Expect.equals(correctKeys[i], keys[i]);
-      }
-    }
-
-    verifyValues(List<int> correctValues) {
-      for (int i = 0; i < correctValues.length; i++) {
-        Expect.equals(correctValues[i], values[i]);
-      }
-    }
-
-    testForEachMap(Object key, Object value) {
-      Expect.equals(map[key], value);
-      keys[index] = key;
-      values[index] = value;
-      index++;
-    }
-
-    testForEachValue(Object v) {
-      values[index++] = v;
-    }
-
-    testForEachKey(Object v) {
-      keys[index++] = v;
-    }
-
-    final keysInOrder = const ["a", "b", "c", "d", "e"];
-    final valuesInOrder = const [1, 2, 3, 4, 5];
-
-    clear();
-    map.forEach(testForEachMap);
-    verifyKeys(keysInOrder);
-    verifyValues(valuesInOrder);
-
-    clear();
-    map.keys.forEach(testForEachKey);
-    verifyKeys(keysInOrder);
-
-    clear();
-    map.values.forEach(testForEachValue);
-    verifyValues(valuesInOrder);
-
-    // Remove and then insert.
-    map.remove("b");
-    map["b"] = 6;
-    final keysAfterBMove = const ["a", "c", "d", "e", "b"];
-    final valuesAfterBMove = const [1, 3, 4, 5, 6];
-
-    clear();
-    map.forEach(testForEachMap);
-    verifyKeys(keysAfterBMove);
-    verifyValues(valuesAfterBMove);
-
-    clear();
-    map.keys.forEach(testForEachKey);
-    verifyKeys(keysAfterBMove);
-
-    clear();
-    map.values.forEach(testForEachValue);
-    verifyValues(valuesAfterBMove);
-
-    // Update.
-    map["a"] = 0;
-    final valuesAfterAUpdate = const [0, 3, 4, 5, 6];
-
-    clear();
-    map.forEach(testForEachMap);
-    verifyKeys(keysAfterBMove);
-    verifyValues(valuesAfterAUpdate);
-
-    clear();
-    map.keys.forEach(testForEachKey);
-    verifyKeys(keysAfterBMove);
-
-    clear();
-    map.values.forEach(testForEachValue);
-    verifyValues(valuesAfterAUpdate);
-  }
-}
-
-main() {
-  LinkedHashMapTest.testMain();
-}
diff --git a/tests/corelib_2/list_as_map_test.dart b/tests/corelib_2/list_as_map_test.dart
deleted file mode 100644
index c86b716efde..00000000000
--- a/tests/corelib_2/list_as_map_test.dart
+++ /dev/null
@@ -1,97 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void testListMapCorrespondence(List list, Map map) {
-  Expect.equals(list.length, map.length);
-  for (int i = 0; i < list.length; i++) {
-    Expect.equals(list[i], map[i]);
-  }
-  Expect.isNull(map[list.length]);
-  Expect.isNull(map[-1]);
-
-  Iterable keys = map.keys;
-  Iterable values = map.values;
-  Expect.isFalse(keys is List);
-  Expect.isFalse(values is List);
-  Expect.equals(list.length, keys.length);
-  Expect.equals(list.length, values.length);
-  for (int i = 0; i < list.length; i++) {
-    Expect.equals(i, keys.elementAt(i));
-    Expect.equals(list[i], values.elementAt(i));
-  }
-
-  int forEachCount = 0;
-  map.forEach((key, value) {
-    Expect.equals(forEachCount, key);
-    Expect.equals(list[key], value);
-    forEachCount++;
-  });
-
-  for (int i = 0; i < list.length; i++) {
-    Expect.isTrue(map.containsKey(i));
-    Expect.isTrue(map.containsValue(list[i]));
-  }
-  Expect.isFalse(map.containsKey(-1));
-  Expect.isFalse(map.containsKey(list.length));
-
-  Expect.equals(list.length, forEachCount);
-
-  Expect.equals(list.isEmpty, map.isEmpty);
-}
-
-void testConstAsMap(List list) {
-  Map<int, dynamic> map = list.asMap();
-
-  testListMapCorrespondence(list, map);
-
-  Expect.throwsUnsupportedError(() => map[0] = 499);
-  Expect.throwsUnsupportedError(() => map.putIfAbsent(0, () => 499));
-  Expect.throwsUnsupportedError(() => map.clear());
-}
-
-void testFixedAsMap(List list) {
-  testConstAsMap(list);
-
-  Map<int, dynamic> map = list.asMap();
-
-  if (!list.isEmpty) {
-    list[0] = 499;
-    // Check again to make sure the map is backed by the list.
-    testListMapCorrespondence(list, map);
-  }
-}
-
-void testAsMap(List list) {
-  testFixedAsMap(list);
-
-  Map<int, dynamic> map = list.asMap();
-
-  Iterable keys = map.keys;
-  Iterable values = map.values;
-
-  list.add(42);
-  // Check again to make sure the map is backed by the list and that the
-  // length is not cached.
-  testListMapCorrespondence(list, map);
-  // Also check that the keys and values iterable from the map are backed by
-  // the list.
-  Expect.equals(list.length, keys.length);
-  Expect.equals(values.length, values.length);
-}
-
-main() {
-  testConstAsMap(const [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);
-  testAsMap([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);
-  List list = new List.filled(10, null);
-  for (int i = 0; i < 10; i++) list[i] = i + 1;
-  testFixedAsMap(list);
-
-  testConstAsMap(const []);
-  testAsMap([]);
-  testFixedAsMap(new List.filled(0, null));
-}
diff --git a/tests/corelib_2/list_concurrent_modify_self_test.dart b/tests/corelib_2/list_concurrent_modify_self_test.dart
deleted file mode 100644
index 25e20e9cade..00000000000
--- a/tests/corelib_2/list_concurrent_modify_self_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:collection";
-import "dart:typed_data";
-import "package:expect/expect.dart";
-
-void main() {
-  testConcurrentAddSelf([1, 2, 3]);
-}
-
-testConcurrentAddSelf(List list) {
-  Expect.throws(() {
-    list.addAll(list);
-  }, (e) => e is ConcurrentModificationError, "testConcurrentAddSelf($list)");
-}
diff --git a/tests/corelib_2/list_concurrent_modify_test.dart b/tests/corelib_2/list_concurrent_modify_test.dart
deleted file mode 100644
index b9ee4d9a33f..00000000000
--- a/tests/corelib_2/list_concurrent_modify_test.dart
+++ /dev/null
@@ -1,93 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:collection";
-import "dart:typed_data";
-import "package:expect/expect.dart";
-
-void main() {
-  // Growable lists. Initial length 0.
-  testConcurrentModification([]);
-  testConcurrentModification(<int>[].toList());
-  testConcurrentModification(new List<int>.filled(0, null).toList());
-  testConcurrentModification(new List.filled(0, null, growable: true));
-  testConcurrentModification([]);
-  testConcurrentModification(new List.from(const []));
-  testConcurrentModification(new MyList([]));
-  testConcurrentModification(new MyList<int>([]).toList());
-
-  testConcurrentModification(new Uint8List(0).toList());
-  testConcurrentModification(new Int8List(0).toList());
-  testConcurrentModification(new Uint16List(0).toList());
-  testConcurrentModification(new Int16List(0).toList());
-  testConcurrentModification(new Uint32List(0).toList());
-  testConcurrentModification(new Int32List(0).toList());
-}
-
-void testConcurrentModification(List<int> list) {
-  // add, removeLast.
-  list.clear();
-  list.addAll([1, 2, 3, 2, 7, 9, 9, 7, 2, 3, 2, 1]);
-
-  // Operations that change the length cause ConcurrentModificationError.
-  void testModification(action()) {
-    testIterator(int when) {
-      list.length = 4;
-      list.setAll(0, [0, 1, 2, 3]);
-      Expect.throws(() {
-        for (var element in list) {
-          if (element == when) action();
-        }
-      }, (e) => e is ConcurrentModificationError);
-    }
-
-    testForEach(int when) {
-      list.length = 4;
-      list.setAll(0, [0, 1, 2, 3]);
-      Expect.throws(() {
-        list.forEach((var element) {
-          if (element == when) action();
-        });
-      }, (e) => e is ConcurrentModificationError);
-    }
-
-    // Test the change at different points of the iteration.
-    testIterator(0);
-    testIterator(1);
-    testIterator(3);
-    testForEach(0);
-    testForEach(1);
-    testForEach(3);
-  }
-
-  testModification(() => list.add(5));
-  testModification(() => list.addAll([5, 6]));
-  testModification(() => list.removeLast());
-  for (int i = 0; i < 4; i++) {
-    testModification(() => list.remove(i));
-    testModification(() => list.removeAt(i));
-    testModification(() => list.removeWhere((x) => x == i));
-    testModification(() => list.retainWhere((x) => x != i));
-    testModification(() => list.insert(i, 5));
-    testModification(() => list.insertAll(i, [5, 6]));
-    testModification(() => list.removeRange(i, i + 1));
-    testModification(() => list.replaceRange(i, i + 1, [5, 6]));
-  }
-}
-
-class MyList<E> extends ListBase<E> {
-  List<E> _source;
-  MyList(this._source);
-  int get length => _source.length;
-  void set length(int length) {
-    _source.length = length;
-  }
-
-  E operator [](int index) => _source[index];
-  void operator []=(int index, E value) {
-    _source[index] = value;
-  }
-}
diff --git a/tests/corelib_2/list_contains_argument_order_test.dart b/tests/corelib_2/list_contains_argument_order_test.dart
deleted file mode 100644
index 6912a0b4b5b..00000000000
--- a/tests/corelib_2/list_contains_argument_order_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  const A();
-  bool operator ==(Object other) {
-    return false;
-  }
-}
-
-class B {
-  bool operator ==(Object other) {
-    Expect.fail("Bad equality order.");
-  }
-}
-
-main() {
-  test(iterable) {
-    Expect.isFalse(iterable.contains(new B()));
-  }
-
-  var iterables = <dynamic>[
-    <A>[new A()],
-    new List<A>.filled(1, null)..[0] = new A(),
-    <A>[]..add(new A()),
-    const <A>[const A()],
-    new Set()..add(new A()),
-    (new Map()..[new A()] = 0).keys,
-    (new Map()..[0] = new A()).values
-  ];
-
-  for (var iterable in iterables) {
-    test(iterable);
-    test(iterable.map((x) => x));
-    test(iterable.take(1));
-  }
-}
diff --git a/tests/corelib_2/list_copy_range_test.dart b/tests/corelib_2/list_copy_range_test.dart
deleted file mode 100644
index a5f2c8efa55..00000000000
--- a/tests/corelib_2/list_copy_range_test.dart
+++ /dev/null
@@ -1,117 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:typed_data";
-import "package:expect/expect.dart";
-
-// Tests of List.copyRange.
-
-void main() {
-  var list = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
-
-  List.copyRange(list, 3, [10, 11, 12, 13], 0, 4);
-
-  Expect.listEquals([0, 1, 2, 10, 11, 12, 13, 7, 8, 9], list);
-
-  List.copyRange(list, 6, [20, 21, 22, 23], 1, 3);
-
-  Expect.listEquals([0, 1, 2, 10, 11, 12, 21, 22, 8, 9], list);
-
-  // Empty ranges won't change anything.
-  List.copyRange(list, 7, [30, 31, 32, 33], 3, 3);
-  List.copyRange(list, list.length, [30, 31, 32, 33], 3, 3);
-
-  Expect.listEquals([0, 1, 2, 10, 11, 12, 21, 22, 8, 9], list);
-
-  List.copyRange(list, 0, [40, 41, 42, 43], 0, 2);
-
-  Expect.listEquals([40, 41, 2, 10, 11, 12, 21, 22, 8, 9], list);
-
-  // Overlapping self-ranges
-
-  List.copyRange(list, 2, list, 0, 4);
-
-  Expect.listEquals([40, 41, 40, 41, 2, 10, 21, 22, 8, 9], list);
-
-  List.copyRange(list, 4, list, 6, 10);
-
-  Expect.listEquals([40, 41, 40, 41, 21, 22, 8, 9, 8, 9], list);
-
-  // Invalid source ranges.
-
-  Expect.throwsArgumentError(() {
-    List.copyRange(list, 0, [0, 0, 0], -1, 1);
-  });
-
-  Expect.throwsArgumentError(() {
-    List.copyRange(list, 0, [0, 0, 0], 0, 4);
-  });
-
-  Expect.throwsArgumentError(() {
-    List.copyRange(list, 0, [0, 0, 0], 2, 1);
-  });
-
-  Expect.throwsArgumentError(() {
-    List.copyRange(list, 0, [], 1, 1);
-  });
-
-  // Invalid target range.
-  Expect.throwsArgumentError(() {
-    List.copyRange(list, list.length - 3, [0, 0, 0, 0], 0, 4);
-  });
-
-  // Invalid target range.
-  Expect.throwsArgumentError(() {
-    List.copyRange(list, list.length + 1, [0, 0, 0, 0], 0, 0);
-  });
-
-  // Argument errors throw before changing anything, so list is unchanged.
-  Expect.listEquals([40, 41, 40, 41, 21, 22, 8, 9, 8, 9], list);
-
-  // Omitting start/end (or passing null).
-  List.copyRange(list, 2, [1, 2, 3]);
-
-  Expect.listEquals([40, 41, 1, 2, 3, 22, 8, 9, 8, 9], list);
-
-  List.copyRange(list, 5, [1, 2, 3], 1);
-
-  Expect.listEquals([40, 41, 1, 2, 3, 2, 3, 9, 8, 9], list);
-
-  // Other kinds of lists.
-  var listu8 = new Uint8List.fromList([1, 2, 3, 4]);
-  var list16 = new Int16List.fromList([11, 12, -13, -14]);
-  List.copyRange(listu8, 2, list16, 1, 3);
-  Expect.listEquals([1, 2, 12, 256 - 13], listu8);
-
-  var clist = const <int>[1, 2, 3, 4];
-  var flist = new List<int>.filled(4, null)..setAll(0, [10, 11, 12, 13]);
-  List.copyRange(flist, 1, clist, 1, 3);
-  Expect.listEquals([10, 2, 3, 13], flist);
-
-  // Invoking with a type parameter that is a supertype of the list types
-  // is valid and useful.
-  List<int> ilist = <int>[1, 2, 3, 4];
-  List<num> nlist = <num>[11, 12, 13, 14];
-
-  List.copyRange<num>(ilist, 1, nlist, 1, 3);
-  Expect.listEquals([1, 12, 13, 4], ilist);
-  List.copyRange<Object>(ilist, 1, nlist, 0, 2);
-  Expect.listEquals([1, 11, 12, 4], ilist);
-  List.copyRange<dynamic>(ilist, 1, nlist, 2, 4);
-  Expect.listEquals([1, 13, 14, 4], ilist);
-
-  var d = new D();
-  List<B> bdlist = <B>[d];
-  List<C> cdlist = <C>[null];
-  List.copyRange<Object>(cdlist, 0, bdlist, 0, 1);
-  Expect.identical(d, cdlist[0]);
-}
-
-class B {}
-
-class C {}
-
-class D implements B, C {}
diff --git a/tests/corelib_2/list_fill_range_test.dart b/tests/corelib_2/list_fill_range_test.dart
deleted file mode 100644
index 36dc8e3a789..00000000000
--- a/tests/corelib_2/list_fill_range_test.dart
+++ /dev/null
@@ -1,74 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "dart:collection";
-
-test(List list, int start, int end, [fillValue]) {
-  List copy = list.toList();
-  list.fillRange(start, end, fillValue);
-  Expect.equals(copy.length, list.length);
-  for (int i = 0; i < start; i++) {
-    Expect.equals(copy[i], list[i]);
-  }
-  for (int i = start; i < end; i++) {
-    Expect.equals(fillValue, list[i]);
-  }
-  for (int i = end; i < list.length; i++) {
-    Expect.equals(copy[i], list[i]);
-  }
-}
-
-class MyList extends ListBase {
-  List list;
-  MyList(this.list);
-  get length => list.length;
-  set length(value) {
-    list.length = value;
-  }
-
-  operator [](index) => list[index];
-  operator []=(index, val) {
-    list[index] = val;
-  }
-
-  toString() => list.toString();
-}
-
-main() {
-  test([1, 2, 3], 0, 1);
-  test([1, 2, 3], 0, 1, 99);
-  test([1, 2, 3], 1, 1);
-  test([1, 2, 3], 1, 1, 499);
-  test([1, 2, 3], 3, 3);
-  test([1, 2, 3], 3, 3, 499);
-  test([1, 2, 3].toList(growable: false), 0, 1);
-  test([1, 2, 3].toList(growable: false), 0, 1, 99);
-  test([1, 2, 3].toList(growable: false), 1, 1);
-  test([1, 2, 3].toList(growable: false), 1, 1, 499);
-  test([1, 2, 3].toList(growable: false), 3, 3);
-  test([1, 2, 3].toList(growable: false), 3, 3, 499);
-  test(new MyList([1, 2, 3]), 0, 1);
-  test(new MyList([1, 2, 3]), 0, 1, 99);
-  test(new MyList([1, 2, 3]), 1, 1);
-  test(new MyList([1, 2, 3]), 1, 1, 499);
-  test(new MyList([1, 2, 3]), 3, 3);
-  test(new MyList([1, 2, 3]), 3, 3, 499);
-
-  Expect.throwsRangeError(() => test([1, 2, 3], -1, 0));
-  Expect.throwsRangeError(() => test([1, 2, 3], 2, 1));
-  Expect.throwsRangeError(() => test([1, 2, 3], 0, -1));
-  Expect.throwsRangeError(() => test([1, 2, 3], 1, 4));
-  Expect.throwsRangeError(() => test(new MyList([1, 2, 3]), -1, 0));
-  Expect.throwsRangeError(() => test(new MyList([1, 2, 3]), 2, 1));
-  Expect.throwsRangeError(() => test(new MyList([1, 2, 3]), 0, -1));
-  Expect.throwsRangeError(() => test(new MyList([1, 2, 3]), 1, 4));
-  Expect.throwsUnsupportedError(() => test(const [1, 2, 3], 2, 3));
-  Expect.throwsUnsupportedError(() => test(const [1, 2, 3], -1, 0));
-  Expect.throwsUnsupportedError(() => test(const [1, 2, 3], 2, 1));
-  Expect.throwsUnsupportedError(() => test(const [1, 2, 3], 0, -1));
-  Expect.throwsUnsupportedError(() => test(const [1, 2, 3], 1, 4));
-}
diff --git a/tests/corelib_2/list_filled_type_argument_test.dart b/tests/corelib_2/list_filled_type_argument_test.dart
deleted file mode 100644
index 2a60fa3f73d..00000000000
--- a/tests/corelib_2/list_filled_type_argument_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  var a = new List<int>.filled(42, 42);
-  Expect.isTrue(a is List<int>);
-  Expect.isFalse(a is List<String>);
-
-  a = new List<int>.filled(42, 42, growable: true);
-  Expect.isTrue(a is List<int>);
-  Expect.isFalse(a is List<String>);
-}
diff --git a/tests/corelib_2/list_first_test.dart b/tests/corelib_2/list_first_test.dart
deleted file mode 100644
index 193a0cf57e0..00000000000
--- a/tests/corelib_2/list_first_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void test(List list) {
-  if (list.isEmpty) {
-    Expect.throwsStateError(() => list.first);
-  } else {
-    Expect.equals(list[0], list.first);
-  }
-}
-
-main() {
-  test([1, 2, 3]);
-  test(const ["foo", "bar"]);
-  test([]);
-  test(const []);
-}
diff --git a/tests/corelib_2/list_fixed_test.dart b/tests/corelib_2/list_fixed_test.dart
deleted file mode 100644
index d6510ff27c5..00000000000
--- a/tests/corelib_2/list_fixed_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  var a;
-
-  a = new List<dynamic>.filled(42, null);
-  Expect.equals(42, a.length);
-  Expect.throwsUnsupportedError(() => a.add(499));
-  Expect.equals(42, a.length);
-  for (int i = 0; i < 42; i++) {
-    Expect.equals(null, a[i]);
-  }
-  Expect.throwsUnsupportedError(() => a.clear());
-  Expect.equals(42, a.length);
-
-  a = new List.filled(42, -2);
-  Expect.equals(42, a.length);
-  Expect.throwsUnsupportedError(() => a.add(499));
-  Expect.equals(42, a.length);
-  for (int i = 0; i < 42; i++) {
-    Expect.equals(-2, a[i]);
-  }
-  Expect.throwsUnsupportedError(() => a.clear());
-  Expect.equals(42, a.length);
-}
diff --git a/tests/corelib_2/list_for_each_test.dart b/tests/corelib_2/list_for_each_test.dart
deleted file mode 100644
index 0469a01bd03..00000000000
--- a/tests/corelib_2/list_for_each_test.dart
+++ /dev/null
@@ -1,69 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "dart:collection";
-
-class MyList extends ListBase {
-  List list;
-  MyList(this.list);
-  get length => list.length;
-  set length(value) {
-    list.length = value;
-  }
-
-  operator [](index) => list[index];
-  operator []=(index, val) {
-    list[index] = val;
-  }
-
-  toString() => list.toString();
-}
-
-void testWithoutModification(List list) {
-  var seen = [];
-  list.forEach(seen.add);
-
-  Expect.listEquals(list, seen);
-}
-
-void testWithModification(List list) {
-  if (list.isEmpty) return;
-  Expect.throws(() => list.forEach((_) => list.add(0)),
-      (e) => e is ConcurrentModificationError);
-}
-
-main() {
-  List fixedLengthList = new List.filled(10, null);
-  for (int i = 0; i < 10; i++) fixedLengthList[i] = i + 1;
-
-  List growableList = [];
-  growableList.length = 10;
-  for (int i = 0; i < 10; i++) growableList[i] = i + 1;
-
-  var growableLists = [
-    [],
-    [1, 2, 3, 4, 5, 6, 7, 8, 9, 10],
-    new MyList([1, 2, 3, 4, 5]),
-    growableList,
-  ];
-  var fixedLengthLists = [
-    const [],
-    fixedLengthList,
-    const [1, 2, 3, 4, 5, 6, 7, 8, 9, 10],
-    new MyList(const [1, 2]),
-  ];
-
-  for (var list in growableLists) {
-    print(list);
-    testWithoutModification(list);
-    testWithModification(list);
-  }
-
-  for (var list in fixedLengthLists) {
-    testWithoutModification(list);
-  }
-}
diff --git a/tests/corelib_2/list_get_range_test.dart b/tests/corelib_2/list_get_range_test.dart
deleted file mode 100644
index 291fd9f3a8b..00000000000
--- a/tests/corelib_2/list_get_range_test.dart
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-testGetRange(list, start, end, bool isModifiable) {
-  Expect.throwsRangeError(() => list.getRange(-1, 0));
-  Expect.throwsRangeError(() => list.getRange(0, -1));
-  Expect.throwsRangeError(() => list.getRange(1, 0));
-  Expect.throwsRangeError(() => list.getRange(0, list.length + 1));
-  Expect.throwsRangeError(
-      () => list.getRange(list.length + 1, list.length + 1));
-  Iterable iterable = list.getRange(start, end);
-  Expect.isFalse(iterable is List);
-  if (start == end) {
-    Expect.isTrue(iterable.isEmpty);
-    return;
-  }
-
-  var iterator = iterable.iterator;
-  for (int i = start; i < end; i++) {
-    Expect.isTrue(iterator.moveNext());
-    Expect.equals(iterator.current, list[i]);
-  }
-  Expect.isFalse(iterator.moveNext());
-
-  if (isModifiable) {
-    for (int i = 0; i < list.length; i++) {
-      list[i]++;
-    }
-
-    iterator = iterable.iterator;
-    for (int i = start; i < end; i++) {
-      Expect.isTrue(iterator.moveNext());
-      Expect.equals(iterator.current, list[i]);
-    }
-  }
-}
-
-main() {
-  testGetRange([1, 2], 0, 1, true);
-  testGetRange([], 0, 0, true);
-  testGetRange([1, 2, 3], 0, 0, true);
-  testGetRange([1, 2, 3], 1, 3, true);
-  testGetRange(const [1, 2], 0, 1, false);
-  testGetRange(const [], 0, 0, false);
-  testGetRange(const [1, 2, 3], 0, 0, false);
-  testGetRange(const [1, 2, 3], 1, 3, false);
-  testGetRange("abcd".codeUnits, 0, 1, false);
-  testGetRange("abcd".codeUnits, 0, 0, false);
-  testGetRange("abcd".codeUnits, 1, 3, false);
-
-  Expect.throwsRangeError(() => [1].getRange(-1, 1));
-  Expect.throwsRangeError(() => [3].getRange(0, -1));
-  Expect.throwsRangeError(() => [4].getRange(1, 0));
-
-  var list = [1, 2, 3, 4];
-  var iterable = list.getRange(1, 3);
-  Expect.equals(2, iterable.first);
-  Expect.equals(3, iterable.last);
-  list.length = 1;
-  Expect.isTrue(iterable.isEmpty);
-  list.add(99);
-  Expect.equals(99, iterable.single);
-  list.add(499);
-  Expect.equals(499, iterable.last);
-  Expect.equals(2, iterable.length);
-}
diff --git a/tests/corelib_2/list_growable_test.dart b/tests/corelib_2/list_growable_test.dart
deleted file mode 100644
index 55b20882fd6..00000000000
--- a/tests/corelib_2/list_growable_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  var a;
-  a = [];
-  a.add(499);
-  Expect.equals(1, a.length);
-  Expect.equals(499, a[0]);
-  a.clear();
-  Expect.equals(0, a.length);
-  Expect.throwsRangeError(() => a[0]);
-
-  a = new List<dynamic>.filled(42, null).toList();
-  Expect.equals(42, a.length);
-  a.add(499);
-  Expect.equals(43, a.length);
-  Expect.equals(499, a[42]);
-  Expect.equals(null, a[23]);
-  a.clear();
-  Expect.equals(0, a.length);
-  Expect.throwsRangeError(() => a[0]);
-
-  a = new List<int>.filled(42, null).toList();
-  Expect.equals(42, a.length);
-  a.add(499);
-  Expect.equals(43, a.length);
-  Expect.equals(499, a[42]);
-  for (int i = 0; i < 42; i++) {
-    Expect.equals(null, a[i]);
-  }
-  a.clear();
-  Expect.equals(0, a.length);
-  Expect.throwsRangeError(() => a[0]);
-}
diff --git a/tests/corelib_2/list_index_of_test.dart b/tests/corelib_2/list_index_of_test.dart
deleted file mode 100644
index d840d8677d2..00000000000
--- a/tests/corelib_2/list_index_of_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  test(new List<int>.filled(5, null));
-  var l = <int>[];
-  l.length = 5;
-  test(l);
-}
-
-void test(List<int> list) {
-  list[0] = 1;
-  list[1] = 2;
-  list[2] = 3;
-  list[3] = 4;
-  list[4] = 1;
-
-  Expect.equals(3, list.indexOf(4, 0));
-  Expect.equals(0, list.indexOf(1, 0));
-  Expect.equals(4, list.lastIndexOf(1, list.length - 1));
-
-  Expect.equals(4, list.indexOf(1, 1));
-  Expect.equals(-1, list.lastIndexOf(4, 2));
-
-  Expect.equals(3, list.indexOf(4, 2));
-  Expect.equals(3, list.indexOf(4, -5));
-  Expect.equals(-1, list.indexOf(4, 50));
-
-  Expect.equals(-1, list.lastIndexOf(4, 2));
-  Expect.equals(-1, list.lastIndexOf(4, -5));
-  Expect.equals(3, list.lastIndexOf(4, 50));
-}
diff --git a/tests/corelib_2/list_insert_all_test.dart b/tests/corelib_2/list_insert_all_test.dart
deleted file mode 100644
index 854ab207944..00000000000
--- a/tests/corelib_2/list_insert_all_test.dart
+++ /dev/null
@@ -1,86 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "dart:collection";
-
-test(List<int> list, int index, Iterable<int> iterable) {
-  List copy = list.toList();
-  list.insertAll(index, iterable);
-  List iterableList = iterable.toList();
-  Expect.equals(copy.length + iterableList.length, list.length);
-  for (int i = 0; i < index; i++) {
-    Expect.equals(copy[i], list[i]);
-  }
-  for (int i = 0; i < iterableList.length; i++) {
-    Expect.equals(iterableList[i], list[i + index]);
-  }
-  for (int i = index + iterableList.length; i < copy.length; i++) {
-    Expect.equals(copy[i], list[i + iterableList.length]);
-  }
-}
-
-class MyList<T> extends ListBase<T> {
-  List<T> list;
-  MyList(this.list);
-  get length => list.length;
-  set length(value) {
-    list.length = value;
-  }
-
-  operator [](index) => list[index];
-  operator []=(index, val) {
-    list[index] = val;
-  }
-
-  toString() => list.toString();
-}
-
-main() {
-  test([1, 2, 3], 0, [4, 5]);
-  test([1, 2, 3], 1, [4, 5]);
-  test([1, 2, 3], 2, [4, 5]);
-  test([1, 2, 3], 3, [4, 5]);
-  test([1, 2, 3], 2, [4]);
-  test([1, 2, 3], 3, []);
-  test([1, 2, 3], 0, [4, 5].map((x) => x));
-  test([1, 2, 3], 1, [4, 5].map((x) => x));
-  test([1, 2, 3], 2, [4, 5].map((x) => x));
-  test([1, 2, 3], 3, [4, 5].map((x) => x));
-  test([1, 2, 3], 2, [4].map((x) => x));
-  test([1, 2, 3], 3, [].map((x) => x));
-  test([1, 2, 3], 0, const [4, 5]);
-  test([1, 2, 3], 1, const [4, 5]);
-  test([1, 2, 3], 2, const [4, 5]);
-  test([1, 2, 3], 3, const [4, 5]);
-  test([1, 2, 3], 2, const [4]);
-  test([1, 2, 3], 3, const []);
-  test([1, 2, 3], 0, new Iterable.generate(2, (x) => x + 4));
-  test([1, 2, 3], 1, new Iterable.generate(2, (x) => x + 4));
-  test([1, 2, 3], 2, new Iterable.generate(2, (x) => x + 4));
-  test([1, 2, 3], 3, new Iterable.generate(2, (x) => x + 4));
-  test([1, 2, 3], 2, new Iterable.generate(1, (x) => x + 4));
-  test([1, 2, 3], 3, new Iterable.generate(0, (x) => x + 4));
-  test(new MyList([1, 2, 3]), 0, [4, 5]);
-  test(new MyList([1, 2, 3]), 1, [4, 5]);
-  test(new MyList([1, 2, 3]), 2, [4]);
-  test(new MyList([1, 2, 3]), 3, []);
-  test(new MyList([1, 2, 3]), 2, [4, 5]);
-  test(new MyList([1, 2, 3]), 3, [4, 5]);
-  test(new MyList([1, 2, 3]), 0, [4, 5].map((x) => x));
-  test(new MyList([1, 2, 3]), 1, [4, 5].map((x) => x));
-  test(new MyList([1, 2, 3]), 2, [4, 5].map((x) => x));
-  test(new MyList([1, 2, 3]), 3, [4, 5].map((x) => x));
-  test(new MyList([1, 2, 3]), 2, [4].map((x) => x));
-  test(new MyList([1, 2, 3]), 3, [].map((x) => x));
-
-  Expect.throwsRangeError(() => test([1, 2, 3], -1, [4, 5]));
-  Expect.throwsUnsupportedError(
-      () => test([1, 2, 3].toList(growable: false), -1, [4, 5]));
-  Expect.throwsRangeError(() => test(new MyList([1, 2, 3]), -1, [4, 5]));
-  Expect.throwsUnsupportedError(
-      () => test([1, 2, 3].toList(growable: false), 0, [4, 5]));
-}
diff --git a/tests/corelib_2/list_insert_test.dart b/tests/corelib_2/list_insert_test.dart
deleted file mode 100644
index c00cd69bfa5..00000000000
--- a/tests/corelib_2/list_insert_test.dart
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'dart:collection';
-
-class MyList extends ListBase {
-  List list;
-  MyList(this.list);
-
-  get length => list.length;
-  set length(val) {
-    list.length = val;
-  }
-
-  operator [](index) => list[index];
-  operator []=(index, val) => list[index] = val;
-
-  String toString() => "[" + join(", ") + "]";
-}
-
-// l1 must be a modifiable list with 5 elements from 0 to 4.
-void testModifiableList(l1) {
-  // Index must be integer and in range.
-  Expect.throwsRangeError(() => l1.insert(-1, 5), "negative");
-  Expect.throwsRangeError(() => l1.insert(6, 5), "too large");
-  Expect.throws(() => l1.insert(null, 5));
-  Expect.throws(() => l1.insert("1", 5));
-  Expect.throws(() => l1.insert(1.5, 5));
-
-  l1.insert(5, 5);
-  Expect.equals(6, l1.length);
-  Expect.equals(5, l1[5]);
-  Expect.equals("[0, 1, 2, 3, 4, 5]", l1.toString());
-
-  l1.insert(0, -1);
-  Expect.equals(7, l1.length);
-  Expect.equals(-1, l1[0]);
-  Expect.equals("[-1, 0, 1, 2, 3, 4, 5]", l1.toString());
-}
-
-void main() {
-  // Normal modifiable list.
-  testModifiableList([0, 1, 2, 3, 4]);
-  testModifiableList(new MyList([0, 1, 2, 3, 4]));
-
-  // Fixed size list.
-  var l2 = new List<dynamic>.filled(5, null);
-  for (var i = 0; i < 5; i++) l2[i] = i;
-  Expect.throwsUnsupportedError(() => l2.insert(2, 5), "fixed-length");
-
-  // Unmodifiable list.
-  var l3 = const [0, 1, 2, 3, 4];
-  Expect.throwsUnsupportedError(() => l3.insert(2, 5), "unmodifiable");
-
-  // Empty list is not special.
-  var l4 = [];
-  l4.insert(0, 499);
-  Expect.equals(1, l4.length);
-  Expect.equals(499, l4[0]);
-}
diff --git a/tests/corelib_2/list_iterators_test.dart b/tests/corelib_2/list_iterators_test.dart
deleted file mode 100644
index 86fd7f0cd39..00000000000
--- a/tests/corelib_2/list_iterators_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class ListIteratorsTest {
-  static void checkListIterator(List a) {
-    Iterator it = a.iterator;
-    Expect.isNull(it.current);
-    for (int i = 0; i < a.length; i++) {
-      Expect.isTrue(it.moveNext());
-      var elem = it.current;
-      Expect.equals(a[i], elem);
-    }
-    Expect.isFalse(it.moveNext());
-    Expect.isNull(it.current);
-  }
-
-  static testMain() {
-    checkListIterator([]);
-    checkListIterator([1, 2]);
-    checkListIterator(new List.filled(0, null));
-    checkListIterator(new List.filled(10, null));
-    checkListIterator([]);
-    List g = [];
-    g.addAll([1, 2, 3]);
-    checkListIterator(g);
-
-    // This is mostly undefined behavior.
-    Iterator it = g.iterator;
-    Expect.isTrue(it.moveNext());
-    Expect.equals(1, it.current);
-    Expect.isTrue(it.moveNext());
-    g[1] = 49;
-    // The iterator keeps the last value.
-    Expect.equals(2, it.current);
-    Expect.isTrue(it.moveNext());
-    g.removeLast();
-    // The iterator keeps the last value.
-    Expect.equals(3, it.current);
-    Expect.throws(it.moveNext, (e) => e is ConcurrentModificationError);
-    // No progress when throwing.
-    Expect.equals(3, it.current);
-  }
-}
-
-main() {
-  ListIteratorsTest.testMain();
-}
diff --git a/tests/corelib_2/list_last_test.dart b/tests/corelib_2/list_last_test.dart
deleted file mode 100644
index 3c86628cd90..00000000000
--- a/tests/corelib_2/list_last_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void test(List list) {
-  if (list.isEmpty) {
-    Expect.throwsStateError(() => list.last);
-  } else {
-    Expect.equals(list[list.length - 1], list.last);
-  }
-}
-
-main() {
-  test([1, 2, 3]);
-  test(const ["foo", "bar"]);
-  test([]);
-  test(const []);
-}
diff --git a/tests/corelib_2/list_literal_is_growable_test.dart b/tests/corelib_2/list_literal_is_growable_test.dart
deleted file mode 100644
index 40307566d4a..00000000000
--- a/tests/corelib_2/list_literal_is_growable_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  var l = [];
-  l.add(1);
-  Expect.equals(1, l.length);
-  Expect.equals(1, l[0]);
-}
diff --git a/tests/corelib_2/list_literal_test.dart b/tests/corelib_2/list_literal_test.dart
deleted file mode 100644
index fe7439b5d06..00000000000
--- a/tests/corelib_2/list_literal_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that a list literal is expandable and modifiable.
-
-class ListLiteralTest {
-  static void testMain() {
-    var list = [1, 2, 3];
-    Expect.equals(3, list.length);
-    list.add(4);
-    Expect.equals(4, list.length);
-    list.addAll([5, 6]);
-    Expect.equals(6, list.length);
-    list[0] = 0;
-    Expect.equals(0, list[0]);
-  }
-}
-
-main() {
-  ListLiteralTest.testMain();
-}
diff --git a/tests/corelib_2/list_map_test.dart b/tests/corelib_2/list_map_test.dart
deleted file mode 100644
index 19f56643d45..00000000000
--- a/tests/corelib_2/list_map_test.dart
+++ /dev/null
@@ -1,166 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  testOperations();
-}
-
-class ThrowMarker {
-  const ThrowMarker();
-  String toString() => "<<THROWS>>";
-}
-
-void testOperations() {
-  // Comparison lists.
-  List l = const [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
-  List r = const [10, 9, 8, 7, 6, 5, 4, 3, 2, 1];
-  // Function that reverses l and r lists when used to map.
-  int rev(x) => 11 - x;
-  // A base list that starts out like l, but isn't const.
-  List base = l.map((x) => x).toList();
-
-  Iterable reversed = l.map(rev);
-
-  Expect.listEquals(r, l.map(rev).toList());
-  Expect.listEquals(l, l.map(rev).map(rev).toList());
-  for (int i = 0; i < r.length; i++) {
-    Expect.equals(r[i], reversed.elementAt(i));
-  }
-  Expect.equals(4, base.indexOf(5));
-  Expect.equals(5, reversed.toList().indexOf(5));
-
-  // Reversed followed by combinations of skip and take.
-  List subr = [8, 7, 6, 5, 4, 3];
-  Expect.listEquals(subr, reversed.skip(2).take(6).toList());
-  Expect.listEquals(subr, reversed.take(8).skip(2).toList());
-  Expect.listEquals(subr,
-      reversed.toList().reversed.skip(2).take(6).toList().reversed.toList());
-  Expect.listEquals(subr,
-      reversed.toList().reversed.take(8).skip(2).toList().reversed.toList());
-  Expect.listEquals(subr,
-      reversed.take(8).toList().reversed.take(6).toList().reversed.toList());
-  Expect.listEquals(subr,
-      reversed.toList().reversed.take(8).toList().reversed.take(6).toList());
-  Expect.listEquals(subr,
-      reversed.toList().reversed.skip(2).toList().reversed.skip(2).toList());
-  Expect.listEquals(subr,
-      reversed.skip(2).toList().reversed.skip(2).toList().reversed.toList());
-
-  void testList(List list) {
-    var throws = const ThrowMarker();
-    var mappedList = new List<int>.filled(list.length, null);
-    for (int i = 0; i < list.length; i++) {
-      mappedList[i] = rev(list[i]);
-    }
-    Iterable<int> reversed = list.map(rev);
-
-    void testEquals(v1, v2, path) {
-      if (v1 is Iterable) {
-        Iterator i1 = v1.iterator;
-        Iterator i2 = v2.iterator;
-        int index = 0;
-        while (i1.moveNext()) {
-          Expect.isTrue(i2.moveNext(),
-              "Too few actual values. Expected[$index] == ${i1.current}");
-          testEquals(i1.current, i2.current, "$path[$index]");
-          index++;
-        }
-        if (i2.moveNext()) {
-          Expect
-              .fail("Too many actual values. Actual[$index] == ${i2.current}");
-        }
-      } else {
-        Expect.equals(v1, v2, path);
-      }
-    }
-
-    void testOp(operation(Iterable<int> mappedList), name) {
-      var expect;
-      try {
-        expect = operation(mappedList);
-      } catch (e) {
-        expect = throws;
-      }
-      var actual;
-      try {
-        actual = operation(reversed);
-      } catch (e) {
-        actual = throws;
-      }
-      testEquals(expect, actual, "$name: $list");
-    }
-
-    testOp((i) => i.first, "first");
-    testOp((i) => i.last, "last");
-    testOp((i) => i.single, "single");
-    testOp((i) => i.firstWhere((n) => false), "firstWhere<false");
-    testOp((i) => i.firstWhere((n) => n < 10), "firstWhere<10");
-    testOp((i) => i.firstWhere((n) => n < 5), "firstWhere<5");
-    testOp((i) => i.firstWhere((n) => true), "firstWhere<true");
-    testOp((i) => i.lastWhere((n) => false), "lastWhere<false");
-    testOp((i) => i.lastWhere((n) => n < 5), "lastWhere<5");
-    testOp((i) => i.lastWhere((n) => n < 10), "lastWhere<10");
-    testOp((i) => i.lastWhere((n) => true), "lastWhere<true");
-    testOp((i) => i.singleWhere((n) => false), "singleWhere<false");
-    testOp((i) => i.singleWhere((n) => n < 5), "singelWhere<5");
-    testOp((i) => i.singleWhere((n) => n < 10), "singelWhere<10");
-    testOp((i) => i.singleWhere((n) => true), "singleWhere<true");
-    testOp((i) => i.contains(5), "contains(5)");
-    testOp((i) => i.contains(10), "contains(10)");
-    testOp((i) => i.any((n) => n < 5), "any<5");
-    testOp((i) => i.any((n) => n < 10), "any<10");
-    testOp((i) => i.every((n) => n < 5), "every<5");
-    testOp((i) => i.every((n) => n < 10), "every<10");
-    testOp((i) => i.reduce((a, b) => a + b), "reduce-sum");
-    testOp((i) => i.fold/*<int>*/(0, (a, b) => a + b), "fold-sum");
-    testOp((i) => i.join("-"), "join-");
-    testOp((i) => i.join(""), "join");
-    testOp((i) => i.join(), "join-null");
-    testOp((i) => i.map((n) => n * 2), "map*2");
-    testOp((i) => i.where((n) => n < 5), "where<5");
-    testOp((i) => i.where((n) => n < 10), "where<10");
-    testOp((i) => i.expand((n) => []), "expand[]");
-    testOp((i) => i.expand((n) => [n]), "expand[n]");
-    testOp((i) => i.expand((n) => [n, n]), "expand[n, n]");
-    testOp((i) => i.take(0), "take(0)");
-    testOp((i) => i.take(5), "take(5)");
-    testOp((i) => i.take(10), "take(10)");
-    testOp((i) => i.take(15), "take(15)");
-    testOp((i) => i.skip(0), "skip(0)");
-    testOp((i) => i.skip(5), "skip(5)");
-    testOp((i) => i.skip(10), "skip(10)");
-    testOp((i) => i.skip(15), "skip(15)");
-    testOp((i) => i.takeWhile((n) => false), "takeWhile(t)");
-    testOp((i) => i.takeWhile((n) => n < 5), "takeWhile(n<5)");
-    testOp((i) => i.takeWhile((n) => n > 5), "takeWhile(n>5)");
-    testOp((i) => i.takeWhile((n) => true), "takeWhile(f)");
-    testOp((i) => i.skipWhile((n) => false), "skipWhile(t)");
-    testOp((i) => i.skipWhile((n) => n < 5), "skipWhile(n<5)");
-    testOp((i) => i.skipWhile((n) => n > 5), "skipWhile(n>5)");
-    testOp((i) => i.skipWhile((n) => true), "skipWhile(f)");
-  }
-
-  // Combinations of lists with 0, 1 and more elements.
-  testList([]);
-  testList([0]);
-  testList([10]);
-  testList([0, 1]);
-  testList([0, 10]);
-  testList([10, 11]);
-  testList([0, 5, 10]);
-  testList([10, 5, 0]);
-  testList([0, 1, 2, 3]);
-  testList([3, 4, 5, 6]);
-  testList([10, 11, 12, 13]);
-  testList(l);
-  testList(r);
-  testList(base);
-
-  // Reverse const list.
-  Expect.listEquals(r, l.map(rev).toList());
-}
diff --git a/tests/corelib_2/list_remove_range_test.dart b/tests/corelib_2/list_remove_range_test.dart
deleted file mode 100644
index fa5c2713afc..00000000000
--- a/tests/corelib_2/list_remove_range_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  var list = [];
-  list.removeRange(0, 0);
-  Expect.equals(0, list.length);
-  Expect.throwsRangeError(() => list.removeRange(0, 1));
-
-  list.add(1);
-  list.removeRange(0, 0);
-  Expect.equals(1, list.length);
-  Expect.equals(1, list[0]);
-
-  Expect.throwsRangeError(() => list.removeRange(0, 2));
-  Expect.equals(1, list.length);
-  Expect.equals(1, list[0]);
-
-  list.removeRange(0, 1);
-  Expect.equals(0, list.length);
-
-  list.addAll([3, 4, 5, 6]);
-  Expect.equals(4, list.length);
-  list.removeRange(0, 4);
-  Expect.listEquals([], list);
-
-  list.addAll([3, 4, 5, 6]);
-  list.removeRange(2, 4);
-  Expect.listEquals([3, 4], list);
-  list.addAll([5, 6]);
-
-  Expect.throwsRangeError(() => list.removeRange(4, 5));
-  Expect.listEquals([3, 4, 5, 6], list);
-
-  list.removeRange(1, 3);
-  Expect.listEquals([3, 6], list);
-
-  testNegativeIndices();
-}
-
-void testNegativeIndices() {
-  var list = [1, 2];
-  Expect.throwsRangeError(() => list.removeRange(-1, 1));
-  Expect.listEquals([1, 2], list);
-
-  Expect.throwsRangeError(() => list.removeRange(0, -1));
-  Expect.listEquals([1, 2], list);
-
-  Expect.throwsRangeError(() => list.removeRange(-1, -1));
-  Expect.listEquals([1, 2], list);
-
-  Expect.throwsRangeError(() => list.removeRange(-1, 0));
-
-  Expect.throwsRangeError(() => list.removeRange(4, 4));
-  Expect.listEquals([1, 2], list);
-}
diff --git a/tests/corelib_2/list_removeat_test.dart b/tests/corelib_2/list_removeat_test.dart
deleted file mode 100644
index 71e93799c47..00000000000
--- a/tests/corelib_2/list_removeat_test.dart
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-
-class MyList extends ListBase {
-  List list;
-  MyList(this.list);
-
-  get length => list.length;
-  set length(val) {
-    list.length = val;
-  }
-
-  operator [](index) => list[index];
-  operator []=(index, val) => list[index] = val;
-
-  String toString() => "[" + join(", ") + "]";
-}
-
-// l1 must be a modifiable list with 5 elements from 0 to 4.
-void testModifiableList(l1) {
-  // Index must be integer and in range.
-  Expect.throwsRangeError(() => l1.removeAt(-1), "negative");
-  Expect.throwsRangeError(() => l1.removeAt(5), "too large");
-  Expect.throwsArgumentError(() => l1.removeAt(null), "too large");
-
-  Expect.equals(2, l1.removeAt(2), "l1-remove2");
-  Expect.equals(1, l1[1], "l1-1[1]");
-
-  Expect.equals(3, l1[2], "l1-1[2]");
-  Expect.equals(4, l1[3], "l1-1[3]");
-  Expect.equals(4, l1.length, "length-1");
-
-  Expect.equals(0, l1.removeAt(0), "l1-remove0");
-  Expect.equals(1, l1[0], "l1-2[0]");
-  Expect.equals(3, l1[1], "l1-2[1]");
-  Expect.equals(4, l1[2], "l1-2[2]");
-  Expect.equals(3, l1.length, "length-2");
-}
-
-void main() {
-  // Normal modifiable list.
-  testModifiableList([0, 1, 2, 3, 4]);
-  testModifiableList(new MyList([0, 1, 2, 3, 4]));
-
-  // Fixed size list.
-  var l2 = new List<dynamic>.filled(5, null);
-  for (var i = 0; i < 5; i++) l2[i] = i;
-  Expect.throwsUnsupportedError(() => l2.removeAt(2), "fixed-length");
-
-  // Unmodifiable list.
-  var l3 = const [0, 1, 2, 3, 4];
-  Expect.throwsUnsupportedError(() => l3.removeAt(2), "unmodifiable");
-
-  // Empty list is not special.
-  var l4 = [];
-  Expect.throwsRangeError(() => l4.removeAt(0), "empty");
-}
diff --git a/tests/corelib_2/list_replace_range_test.dart b/tests/corelib_2/list_replace_range_test.dart
deleted file mode 100644
index 2c4e3985eb7..00000000000
--- a/tests/corelib_2/list_replace_range_test.dart
+++ /dev/null
@@ -1,122 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "dart:collection";
-
-test(List<int> list, int start, int end, Iterable<int> iterable) {
-  List copy = list.toList();
-  list.replaceRange(start, end, iterable);
-  List iterableList = iterable.toList();
-  Expect.equals(copy.length + iterableList.length - (end - start), list.length);
-  for (int i = 0; i < start; i++) {
-    Expect.equals(copy[i], list[i]);
-  }
-  for (int i = 0; i < iterableList.length; i++) {
-    Expect.equals(iterableList[i], list[i + start]);
-  }
-  int removedLength = end - start;
-  for (int i = end; i < copy.length; i++) {
-    Expect.equals(copy[i], list[i + iterableList.length - removedLength]);
-  }
-}
-
-class MyList<T> extends ListBase<T> {
-  List list;
-  MyList(this.list);
-  get length => list.length;
-  set length(value) {
-    list.length = value;
-  }
-
-  operator [](index) => list[index];
-  operator []=(index, val) {
-    list[index] = val;
-  }
-
-  toString() => list.toString();
-}
-
-main() {
-  test([1, 2, 3], 0, 1, [4, 5]);
-  test([1, 2, 3], 1, 1, [4, 5]);
-  test([1, 2, 3], 2, 3, [4, 5]);
-  test([1, 2, 3], 3, 3, [4, 5]);
-  test([1, 2, 3], 0, 3, [4, 5]);
-  test([1, 2, 3], 2, 3, [4]);
-  test([1, 2, 3], 0, 3, []);
-  test([1, 2, 3], 0, 1, [4, 5].map((x) => x));
-  test([1, 2, 3], 1, 1, [4, 5].map((x) => x));
-  test([1, 2, 3], 2, 3, [4, 5].map((x) => x));
-  test([1, 2, 3], 3, 3, [4, 5].map((x) => x));
-  test([1, 2, 3], 0, 3, [4, 5].map((x) => x));
-  test([1, 2, 3], 2, 3, [4].map((x) => x));
-  test([1, 2, 3], 0, 3, [].map((x) => x));
-  test([1, 2, 3], 0, 1, const [4, 5]);
-  test([1, 2, 3], 1, 1, const [4, 5]);
-  test([1, 2, 3], 2, 3, const [4, 5]);
-  test([1, 2, 3], 3, 3, const [4, 5]);
-  test([1, 2, 3], 0, 3, const [4, 5]);
-  test([1, 2, 3], 2, 3, const [4]);
-  test([1, 2, 3], 0, 3, const []);
-  test([1, 2, 3], 0, 1, new Iterable.generate(2, (x) => x + 4));
-  test([1, 2, 3], 1, 1, new Iterable.generate(2, (x) => x + 4));
-  test([1, 2, 3], 2, 3, new Iterable.generate(2, (x) => x + 4));
-  test([1, 2, 3], 3, 3, new Iterable.generate(2, (x) => x + 4));
-  test([1, 2, 3], 0, 3, new Iterable.generate(2, (x) => x + 4));
-  test([1, 2, 3], 2, 3, new Iterable.generate(2, (x) => x + 4));
-  test(new MyList([1, 2, 3]), 0, 1, [4, 5]);
-  test(new MyList([1, 2, 3]), 1, 1, [4, 5]);
-  test(new MyList([1, 2, 3]), 2, 3, [4, 5]);
-  test(new MyList([1, 2, 3]), 3, 3, [4, 5]);
-  test(new MyList([1, 2, 3]), 0, 3, [4, 5]);
-  test(new MyList([1, 2, 3]), 2, 3, [4]);
-  test(new MyList([1, 2, 3]), 0, 3, []);
-  test(new MyList([1, 2, 3]), 0, 1, [4, 5].map((x) => x));
-  test(new MyList([1, 2, 3]), 1, 1, [4, 5].map((x) => x));
-  test(new MyList([1, 2, 3]), 2, 3, [4, 5].map((x) => x));
-  test(new MyList([1, 2, 3]), 3, 3, [4, 5].map((x) => x));
-  test(new MyList([1, 2, 3]), 0, 3, [4, 5].map((x) => x));
-  test(new MyList([1, 2, 3]), 2, 3, [4].map((x) => x));
-  test(new MyList([1, 2, 3]), 0, 3, [].map((x) => x));
-  test(new MyList([1, 2, 3]), 0, 1, const [4, 5]);
-  test(new MyList([1, 2, 3]), 1, 1, const [4, 5]);
-  test(new MyList([1, 2, 3]), 2, 3, const [4, 5]);
-  test(new MyList([1, 2, 3]), 3, 3, const [4, 5]);
-  test(new MyList([1, 2, 3]), 0, 3, const [4, 5]);
-  test(new MyList([1, 2, 3]), 2, 3, const [4]);
-  test(new MyList([1, 2, 3]), 0, 3, const []);
-  test(new MyList([1, 2, 3]), 0, 1, new Iterable.generate(2, (x) => x + 4));
-  test(new MyList([1, 2, 3]), 1, 1, new Iterable.generate(2, (x) => x + 4));
-  test(new MyList([1, 2, 3]), 2, 3, new Iterable.generate(2, (x) => x + 4));
-  test(new MyList([1, 2, 3]), 3, 3, new Iterable.generate(2, (x) => x + 4));
-  test(new MyList([1, 2, 3]), 0, 3, new Iterable.generate(2, (x) => x + 4));
-  test(new MyList([1, 2, 3]), 2, 3, new Iterable.generate(2, (x) => x + 4));
-
-  Expect.throwsRangeError(() => test([1, 2, 3], -1, 0, []));
-  Expect.throwsRangeError(() => test([1, 2, 3], 2, 1, []));
-  Expect.throwsRangeError(() => test([1, 2, 3], 0, -1, []));
-  Expect.throwsRangeError(() => test([1, 2, 3], 1, 4, []));
-  Expect.throwsRangeError(() => test(new MyList([1, 2, 3]), -1, 0, []));
-  Expect.throwsRangeError(() => test(new MyList([1, 2, 3]), 2, 1, []));
-  Expect.throwsRangeError(() => test(new MyList([1, 2, 3]), 0, -1, []));
-  Expect.throwsRangeError(() => test(new MyList([1, 2, 3]), 1, 4, []));
-  Expect.throwsUnsupportedError(
-      () => test([1, 2, 3].toList(growable: false), 2, 3, []));
-  Expect.throwsUnsupportedError(
-      () => test([1, 2, 3].toList(growable: false), -1, 0, []));
-  Expect.throwsUnsupportedError(
-      () => test([1, 2, 3].toList(growable: false), 2, 1, []));
-  Expect.throwsUnsupportedError(
-      () => test([1, 2, 3].toList(growable: false), 0, -1, []));
-  Expect.throwsUnsupportedError(
-      () => test([1, 2, 3].toList(growable: false), 1, 4, []));
-  Expect.throwsUnsupportedError(() => test(const [1, 2, 3], 2, 3, []));
-  Expect.throwsUnsupportedError(() => test(const [1, 2, 3], -1, 0, []));
-  Expect.throwsUnsupportedError(() => test(const [1, 2, 3], 2, 1, []));
-  Expect.throwsUnsupportedError(() => test(const [1, 2, 3], 0, -1, []));
-  Expect.throwsUnsupportedError(() => test(const [1, 2, 3], 1, 4, []));
-}
diff --git a/tests/corelib_2/list_reversed_test.dart b/tests/corelib_2/list_reversed_test.dart
deleted file mode 100644
index c56b0a60592..00000000000
--- a/tests/corelib_2/list_reversed_test.dart
+++ /dev/null
@@ -1,138 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  testOperations();
-}
-
-class ThrowMarker {
-  const ThrowMarker();
-  String toString() => "<<THROWS>>";
-}
-
-void testOperations() {
-  // Comparison lists.
-  var l = const [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
-  var r = const [10, 9, 8, 7, 6, 5, 4, 3, 2, 1];
-  // A base list that starts out like l.
-  var base = l.toList();
-  // A lazy reverse of base.
-  var reversed = base.reversed;
-
-  Expect.listEquals(r, reversed.toList());
-  Expect.listEquals(l, reversed.toList().reversed.toList());
-  for (int i = 0; i < r.length; i++) {
-    Expect.equals(r[i], reversed.elementAt(i));
-  }
-  Expect.equals(4, base.indexOf(5));
-  Expect.equals(5, reversed.toList().indexOf(5));
-
-  // Reversed followed by combinations of skip and take.
-  List subr = [8, 7, 6, 5, 4, 3];
-  Expect.listEquals(subr, reversed.skip(2).take(6).toList());
-  Expect.listEquals(subr, reversed.take(8).skip(2).toList());
-  Expect.listEquals(subr,
-      reversed.toList().reversed.skip(2).take(6).toList().reversed.toList());
-  Expect.listEquals(subr,
-      reversed.toList().reversed.take(8).skip(2).toList().reversed.toList());
-  Expect.listEquals(subr,
-      reversed.take(8).toList().reversed.take(6).toList().reversed.toList());
-  Expect.listEquals(subr,
-      reversed.toList().reversed.take(8).toList().reversed.take(6).toList());
-  Expect.listEquals(subr,
-      reversed.toList().reversed.skip(2).toList().reversed.skip(2).toList());
-  Expect.listEquals(subr,
-      reversed.skip(2).toList().reversed.skip(2).toList().reversed.toList());
-
-  void testList(List<int> list) {
-    var throws = const ThrowMarker();
-    void testEquals(v1, v2, path) {
-      if (v1 is Iterable) {
-        Iterator i1 = v1.iterator;
-        Iterator i2 = v2.iterator;
-        int index = 0;
-        while (i1.moveNext()) {
-          Expect.isTrue(i2.moveNext(),
-              "Too few actual values. Expected[$index] == ${i1.current}");
-          testEquals(i1.current, i2.current, "$path[$index]");
-          index++;
-        }
-        if (i2.moveNext()) {
-          Expect
-              .fail("Too many actual values. Actual[$index] == ${i2.current}");
-        }
-      } else {
-        Expect.equals(v1, v2, path);
-      }
-    }
-
-    void testOp(operation(Iterable<int> reversedList), name) {
-      var reversedList = new List<int>.filled(list.length, null);
-      for (int i = 0; i < list.length; i++) {
-        reversedList[i] = list[list.length - 1 - i];
-      }
-      var reversed = list.reversed;
-      var expect;
-      try {
-        expect = operation(reversedList);
-      } catch (e) {
-        expect = throws;
-      }
-      var actual;
-      try {
-        actual = operation(reversed);
-      } catch (e) {
-        actual = throws;
-      }
-      testEquals(expect, actual, "$name: $list");
-    }
-
-    testOp((i) => i.first, "first");
-    testOp((i) => i.last, "last");
-    testOp((i) => i.single, "single");
-    testOp((i) => i.firstWhere((n) => n < 5), "firstWhere<5");
-    testOp((i) => i.firstWhere((n) => n < 10), "firstWhere<10");
-    testOp((i) => i.lastWhere((n) => n < 5), "lastWhere<5");
-    testOp((i) => i.lastWhere((n) => n < 10), "lastWhere<10");
-    testOp((i) => i.singleWhere((n) => n < 5), "singelWhere<5");
-    testOp((i) => i.singleWhere((n) => n < 10), "singelWhere<10");
-    testOp((i) => i.contains(5), "contains(5)");
-    testOp((i) => i.contains(10), "contains(10)");
-    testOp((i) => i.any((n) => n < 5), "any<5");
-    testOp((i) => i.any((n) => n < 10), "any<10");
-    testOp((i) => i.every((n) => n < 5), "every<5");
-    testOp((i) => i.every((n) => n < 10), "every<10");
-    testOp((i) => i.reduce((a, b) => a + b), "reduce-sum");
-    testOp((i) => i.fold/*<int>*/(0, (a, b) => a + b), "fold-sum");
-    testOp((i) => i.join("-"), "join-");
-    testOp((i) => i.join(""), "join");
-    testOp((i) => i.join(), "join-null");
-    testOp((i) => i.map((n) => n * 2), "map*2");
-    testOp((i) => i.where((n) => n < 5), "where<5");
-    testOp((i) => i.where((n) => n < 10), "where<10");
-    testOp((i) => i.expand((n) => []), "expand[]");
-    testOp((i) => i.expand((n) => [n]), "expand[n]");
-    testOp((i) => i.expand((n) => [n, n]), "expand[n, n]");
-  }
-
-  // Combinations of lists with 0, 1 and more elements.
-  testList([]);
-  testList([0]);
-  testList([10]);
-  testList([0, 1]);
-  testList([0, 10]);
-  testList([10, 11]);
-  testList([0, 5, 10]);
-  testList([10, 5, 0]);
-  testList([0, 1, 2, 3]);
-  testList([3, 4, 5, 6]);
-  testList([10, 11, 12, 13]);
-
-  // Reverse const list.
-  Expect.listEquals(r, l.reversed.toList());
-}
diff --git a/tests/corelib_2/list_set_all_test.dart b/tests/corelib_2/list_set_all_test.dart
deleted file mode 100644
index 0b4b475253c..00000000000
--- a/tests/corelib_2/list_set_all_test.dart
+++ /dev/null
@@ -1,99 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "dart:collection";
-
-test(List<int> list, int index, Iterable<int> iterable) {
-  List copy = list.toList();
-  list.setAll(index, iterable);
-  Expect.equals(copy.length, list.length);
-  for (int i = 0; i < index; i++) {
-    Expect.equals(copy[i], list[i]);
-  }
-  List iterableList = iterable.toList();
-  for (int i = 0; i < iterableList.length; i++) {
-    Expect.equals(iterableList[i], list[i + index]);
-  }
-  for (int i = index + iterableList.length; i < copy.length; i++) {
-    Expect.equals(copy[i], list[i]);
-  }
-}
-
-class MyList<T> extends ListBase<T> {
-  List list;
-  MyList(this.list);
-  get length => list.length;
-  set length(value) {
-    list.length = value;
-  }
-
-  operator [](index) => list[index];
-  operator []=(index, val) {
-    list[index] = val;
-  }
-
-  toString() => list.toString();
-}
-
-main() {
-  test([1, 2, 3], 0, [4, 5]);
-  test([1, 2, 3], 1, [4, 5]);
-  test([1, 2, 3], 2, [4]);
-  test([1, 2, 3], 3, []);
-  test([1, 2, 3], 0, [4, 5].map((x) => x));
-  test([1, 2, 3], 1, [4, 5].map((x) => x));
-  test([1, 2, 3], 2, [4].map((x) => x));
-  test([1, 2, 3], 3, [].map((x) => x));
-  test([1, 2, 3], 0, const [4, 5]);
-  test([1, 2, 3], 1, const [4, 5]);
-  test([1, 2, 3], 2, const [4]);
-  test([1, 2, 3], 3, const []);
-  test([1, 2, 3], 0, new Iterable.generate(2, (x) => x + 4));
-  test([1, 2, 3], 1, new Iterable.generate(2, (x) => x + 4));
-  test([1, 2, 3], 2, new Iterable.generate(1, (x) => x + 4));
-  test([1, 2, 3], 3, new Iterable.generate(0, (x) => x + 4));
-  test([1, 2, 3].toList(growable: false), 0, [4, 5]);
-  test([1, 2, 3].toList(growable: false), 1, [4, 5]);
-  test([1, 2, 3].toList(growable: false), 2, [4]);
-  test([1, 2, 3].toList(growable: false), 3, []);
-  test([1, 2, 3].toList(growable: false), 0, [4, 5].map((x) => x));
-  test([1, 2, 3].toList(growable: false), 1, [4, 5].map((x) => x));
-  test([1, 2, 3].toList(growable: false), 2, [4].map((x) => x));
-  test([1, 2, 3].toList(growable: false), 3, [].map((x) => x));
-  test([1, 2, 3].toList(growable: false), 0, const [4, 5]);
-  test([1, 2, 3].toList(growable: false), 1, const [4, 5]);
-  test([1, 2, 3].toList(growable: false), 2, const [4]);
-  test([1, 2, 3].toList(growable: false), 3, const []);
-  test([1, 2, 3].toList(growable: false), 0,
-      new Iterable.generate(2, (x) => x + 4));
-  test([1, 2, 3].toList(growable: false), 1,
-      new Iterable.generate(2, (x) => x + 4));
-  test([1, 2, 3].toList(growable: false), 2,
-      new Iterable.generate(1, (x) => x + 4));
-  test([1, 2, 3].toList(growable: false), 3,
-      new Iterable.generate(0, (x) => x + 4));
-  test(new MyList([1, 2, 3]), 0, [4, 5]);
-  test(new MyList([1, 2, 3]), 1, [4, 5]);
-  test(new MyList([1, 2, 3]), 2, [4]);
-  test(new MyList([1, 2, 3]), 3, []);
-  test(new MyList([1, 2, 3]), 0, [4, 5].map((x) => x));
-  test(new MyList([1, 2, 3]), 1, [4, 5].map((x) => x));
-  test(new MyList([1, 2, 3]), 2, [4].map((x) => x));
-  test(new MyList([1, 2, 3]), 3, [].map((x) => x));
-
-  Expect.throwsRangeError(() => test([1, 2, 3], -1, [4, 5]));
-  Expect.throwsRangeError(
-      () => test([1, 2, 3].toList(growable: false), -1, [4, 5]));
-  Expect.throwsRangeError(() => test([1, 2, 3], 1, [4, 5, 6]));
-  Expect.throwsRangeError(
-      () => test([1, 2, 3].toList(growable: false), 1, [4, 5, 6]));
-  Expect.throwsRangeError(() => test(new MyList([1, 2, 3]), -1, [4, 5]));
-  Expect.throwsRangeError(() => test(new MyList([1, 2, 3]), 1, [4, 5, 6]));
-  Expect.throwsUnsupportedError(() => test(const [1, 2, 3], 0, [4, 5]));
-  Expect.throwsUnsupportedError(() => test(const [1, 2, 3], -1, [4, 5]));
-  Expect.throwsUnsupportedError(() => test(const [1, 2, 3], 1, [4, 5, 6]));
-}
diff --git a/tests/corelib_2/list_set_range_test.dart b/tests/corelib_2/list_set_range_test.dart
deleted file mode 100644
index 186f77e98cf..00000000000
--- a/tests/corelib_2/list_set_range_test.dart
+++ /dev/null
@@ -1,87 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  var list = [];
-  list.setRange(0, 0, const []);
-  list.setRange(0, 0, []);
-  list.setRange(0, 0, const [], 1);
-  list.setRange(0, 0, [], 1);
-  Expect.equals(0, list.length);
-  Expect.throwsRangeError(() => list.setRange(0, 1, []));
-  Expect.throwsRangeError(() => list.setRange(0, 1, [], 1));
-  Expect.throwsRangeError(() => list.setRange(0, 1, [1], 0));
-
-  list.add(1);
-  list.setRange(0, 0, [], 0);
-  Expect.equals(1, list.length);
-  Expect.equals(1, list[0]);
-  list.setRange(0, 0, const [], 0);
-  Expect.equals(1, list.length);
-  Expect.equals(1, list[0]);
-
-  Expect.throwsRangeError(() => list.setRange(0, 2, [1, 2]));
-  Expect.equals(1, list.length);
-  Expect.equals(1, list[0]);
-
-  Expect.throwsStateError(() => list.setRange(0, 1, [1, 2], 2));
-  Expect.equals(1, list.length);
-  Expect.equals(1, list[0]);
-
-  list.setRange(0, 1, [2], 0);
-  Expect.equals(1, list.length);
-  Expect.equals(2, list[0]);
-
-  list.setRange(0, 1, const [3], 0);
-  Expect.equals(1, list.length);
-  Expect.equals(3, list[0]);
-
-  list.addAll([4, 5, 6]);
-  Expect.equals(4, list.length);
-  list.setRange(0, 4, [1, 2, 3, 4]);
-  Expect.listEquals([1, 2, 3, 4], list);
-
-  list.setRange(2, 4, [5, 6, 7, 8]);
-  Expect.listEquals([1, 2, 5, 6], list);
-
-  Expect.throwsRangeError(() => list.setRange(4, 5, [5, 6, 7, 8]));
-  Expect.listEquals([1, 2, 5, 6], list);
-
-  list.setRange(1, 3, [9, 10, 11, 12]);
-  Expect.listEquals([1, 9, 10, 6], list);
-
-  testNegativeIndices();
-
-  testNonExtendableList();
-}
-
-void testNegativeIndices() {
-  var list = [1, 2];
-  Expect.throwsRangeError(() => list.setRange(-1, 1, [1]));
-  Expect.throwsArgumentError(() => list.setRange(0, 1, [1], -1));
-
-  Expect.throwsRangeError(() => list.setRange(2, 1, [1]));
-
-  Expect.throwsArgumentError(() => list.setRange(-1, -2, [1], -1));
-  Expect.listEquals([1, 2], list);
-
-  Expect.throwsRangeError(() => list.setRange(-1, -1, [1]));
-  Expect.listEquals([1, 2], list);
-
-  // The skipCount is only used if the length is not 0.
-  list.setRange(0, 0, [1], -1);
-  Expect.listEquals([1, 2], list);
-}
-
-void testNonExtendableList() {
-  var list = new List<int>.filled(6, null);
-  Expect.listEquals([null, null, null, null, null, null], list);
-  list.setRange(0, 3, [1, 2, 3, 4]);
-  list.setRange(3, 6, [1, 2, 3, 4]);
-  Expect.listEquals([1, 2, 3, 1, 2, 3], list);
-}
diff --git a/tests/corelib_2/list_sort_test.dart b/tests/corelib_2/list_sort_test.dart
deleted file mode 100644
index 629c24cba0c..00000000000
--- a/tests/corelib_2/list_sort_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library list_sort_test;
-
-import 'sort_helper.dart';
-
-class ListSortTest {
-  static void testMain() {
-    var compare = Comparable.compare;
-    var sort = (List<num> list) => list.sort(compare);
-    new SortHelper(sort, compare).run();
-
-    new SortHelper((List<num> list) => list.sort(), compare).run();
-
-    compare = (a, b) => -a.compareTo(b);
-    new SortHelper(sort, compare).run();
-  }
-}
-
-main() {
-  ListSortTest.testMain();
-}
diff --git a/tests/corelib_2/list_sublist_test.dart b/tests/corelib_2/list_sublist_test.dart
deleted file mode 100644
index 8fbd5d187fc..00000000000
--- a/tests/corelib_2/list_sublist_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.listEquals([], [].sublist(0, 0));
-  Expect.listEquals([], const [].sublist(0, 0));
-
-  Expect.listEquals([1, 2], [1, 2].sublist(0, 2));
-  Expect.listEquals([1, 2], const [1, 2].sublist(0, 2));
-
-  Expect.listEquals([1], [1, 2].sublist(0, 1));
-  Expect.listEquals([1], const [1, 2].sublist(0, 1));
-
-  Expect.listEquals([2], [1, 2].sublist(1, 2));
-  Expect.listEquals([2], const [1, 2].sublist(1, 2));
-
-  Expect.listEquals([], [1, 2].sublist(0, 0));
-  Expect.listEquals([], const [1, 2].sublist(0, 0));
-
-  Expect.listEquals([2, 3], [1, 2, 3, 4].sublist(1, 3));
-  Expect.listEquals([2, 3], const [1, 2, 3, 4].sublist(1, 3));
-
-  Expect.listEquals([2, 3], [1, 2, 3, 4].sublist(1, 3));
-  Expect.listEquals([2, 3], const [1, 2, 3, 4].sublist(1, 3));
-
-  Expect.throwsArgumentError(() => [].sublist(-1, null));
-  Expect.throwsArgumentError(() => const [].sublist(-1, null));
-  Expect.throwsArgumentError(() => [].sublist(-1, 0));
-  Expect.throwsArgumentError(() => const [].sublist(-1, 0));
-  Expect.throwsArgumentError(() => [].sublist(-1, -1));
-  Expect.throwsArgumentError(() => const [].sublist(-1, -1));
-  Expect.throwsArgumentError(() => [].sublist(-1, 1));
-  Expect.throwsArgumentError(() => const [].sublist(-1, 1));
-  Expect.throwsArgumentError(() => [].sublist(0, -1));
-  Expect.throwsArgumentError(() => const [].sublist(0, -1));
-  Expect.throwsArgumentError(() => [].sublist(0, 1));
-  Expect.throwsArgumentError(() => const [].sublist(0, 1));
-  Expect.throwsArgumentError(() => [].sublist(1, null));
-  Expect.throwsArgumentError(() => const [].sublist(1, null));
-  Expect.throwsArgumentError(() => [].sublist(1, 0));
-  Expect.throwsArgumentError(() => const [].sublist(1, 0));
-  Expect.throwsArgumentError(() => [].sublist(1, -1));
-  Expect.throwsArgumentError(() => const [].sublist(1, -1));
-  Expect.throwsArgumentError(() => [].sublist(1, 1));
-  Expect.throwsArgumentError(() => const [].sublist(1, 1));
-
-  Expect.throwsArgumentError(() => [1].sublist(0, 2));
-  Expect.throwsArgumentError(() => [1].sublist(1, 2));
-  Expect.throwsArgumentError(() => [1].sublist(1, 0));
-}
diff --git a/tests/corelib_2/list_test.dart b/tests/corelib_2/list_test.dart
deleted file mode 100644
index f965479c667..00000000000
--- a/tests/corelib_2/list_test.dart
+++ /dev/null
@@ -1,584 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:collection";
-import "dart:typed_data";
-import "package:expect/expect.dart";
-
-void main() {
-  // Typed lists - fixed length and can only contain integers.
-  testTypedList(new Uint8List(4));
-  testTypedList(new Int8List(4));
-  testTypedList(new Uint16List(4));
-  testTypedList(new Int16List(4));
-  testTypedList(new Uint32List(4));
-  testTypedList(new Int32List(4));
-  testTypedList(new Uint8List(4).toList(growable: false));
-  testTypedList(new Int8List(4).toList(growable: false));
-  testTypedList(new Uint16List(4).toList(growable: false));
-  testTypedList(new Int16List(4).toList(growable: false));
-  testTypedList(new Uint32List(4).toList(growable: false));
-  testTypedList(new Int32List(4).toList(growable: false));
-
-  // Fixed length lists, length 4.
-  testFixedLengthList(<T>() => new List.filled(4, null));
-  testFixedLengthList(<T>() => new List<T>.filled(4, null).toList(growable: false));
-  testFixedLengthList(<T>() => (<T>[]..length = 4).toList(growable: false));
-  // ListBase implementation of List.
-  testFixedLengthList(<T>() => new MyFixedList(new List.filled(4, null)));
-  testFixedLengthList(<T>() => new MyFixedList<T>(new List.filled(4, null)).toList(growable: false));
-
-  // Growable lists. Initial length 0.
-  testGrowableList(<T>() => []);
-  testGrowableList(<T>() => <T>[].toList());
-  testGrowableList(<T>() => new List<T>.filled(0, null).toList());
-  testGrowableList(<T>() => new List.filled(0, null, growable: true));
-  testGrowableList(<T>() => []);
-  testGrowableList(<T>() => new List.from(const []));
-  testGrowableList(<T>() => new MyList([]));
-  testGrowableList(<T>() => new MyList<T>([]).toList());
-
-  testTypedGrowableList(new Uint8List(0).toList());
-  testTypedGrowableList(new Int8List(0).toList());
-  testTypedGrowableList(new Uint16List(0).toList());
-  testTypedGrowableList(new Int16List(0).toList());
-  testTypedGrowableList(new Uint32List(0).toList());
-  testTypedGrowableList(new Int32List(0).toList());
-
-  testListConstructor();
-
-  testErrors();
-}
-
-void testErrors() {
-  // Regression for issue http://dartbug.com/24295
-  testIndexError(list, index, name) {
-    try {
-      list[list.length];
-    } on RangeError catch (err, s) {
-      Expect.isTrue(err is RangeError, "$name[$index]");
-      Expect.equals(list.length, err.invalidValue, "$name[$index] value");
-      Expect.equals(list.length - 1, err.end, "$name[$index] end");
-      Expect.equals(0, err.start, "$name[$index] start");
-    }
-  }
-
-  testIndex(list, name) {
-    testIndexError(list, list.length, name); //   Just too big.
-    testIndexError(list, -1, name); //            Negative.
-    testIndexError(list, 0x123456789, name); //   > 2^32.
-    testIndexError(list, -0x123456789, name); //  < -2^32.
-  }
-
-  // Slices.
-  testSliceError(list, start, end, name) {
-    name = "$name[$start:$end]";
-    var realError;
-    try {
-      RangeError.checkValidRange(start, end, list.length);
-    } catch (e) {
-      realError = e;
-    }
-    var result;
-    try {
-      result = list.sublist(start, end);
-    } on RangeError catch (actualError) {
-      Expect.isNotNull(realError, "$name should not fail");
-      Expect.isTrue(actualError is RangeError, "$name is-error: $actualError");
-      Expect.equals(realError.name, actualError.name, "$name name");
-      Expect.equals(realError.invalidValue, actualError.invalidValue,
-          "$name[0:l+1] value");
-      Expect.equals(realError.start, actualError.start, "$name[0:l+1] start");
-      Expect.equals(realError.end, actualError.end, "$name[0:l+1] end");
-      return;
-    }
-    // Didn't throw.
-    Expect.isNull(realError, "$name should fail");
-    Expect.equals(end - start, result.length, "$name result length");
-  }
-
-  testSlice(list, name) {
-    testSliceError(list, 0, list.length, name); // Should not fail.
-    testSliceError(list, 0, list.length + 1, name);
-    testSliceError(list, 0, 0x123456789, name);
-    testSliceError(list, -1, list.length, name);
-    testSliceError(list, -0x123456789, list.length, name);
-    testSliceError(list, list.length + 1, list.length + 1, name);
-    testSliceError(list, -1, null, name);
-    if (list.length > 0) {
-      testSliceError(list, list.length, list.length - 1, name);
-    }
-  }
-
-  testRangeErrors(list, name) {
-    testIndex(list, "$name#${list.length} index");
-    testSlice(list, "$name#${list.length} slice");
-  }
-
-  // Empty lists.
-  testRangeErrors([], "list");
-  testRangeErrors(new List.filled(0, null), "fixed-list");
-  testRangeErrors(const [], "const-list");
-  testRangeErrors(new List.unmodifiable([]), "unmodifiable");
-  testRangeErrors(new Uint8List(0), "typed-list");
-  testRangeErrors(new Uint8List.view(new Uint8List(0).buffer), "typed-list");
-  testRangeErrors([1, 2, 3].sublist(1, 1), "sub-list");
-  // Non-empty lists.
-  testRangeErrors([1, 2, 3], "list");
-  testRangeErrors(new List.filled(3, null), "fixed-list");
-  testRangeErrors(const [1, 2, 3], "const-list");
-  testRangeErrors(new List.unmodifiable([1, 2, 3]), "unmodifiable");
-  testRangeErrors(new Uint8List(3), "typed-list");
-  testRangeErrors(new Uint8List.view(new Uint8List(3).buffer), "typed-list");
-  testRangeErrors([1, 2, 3, 4, 5].sublist(1, 3), "sub-list");
-}
-
-void testLength(int length, List list) {
-  Expect.equals(length, list.length);
-  (length == 0 ? Expect.isTrue : Expect.isFalse)(list.isEmpty);
-  (length != 0 ? Expect.isTrue : Expect.isFalse)(list.isNotEmpty);
-}
-
-void testTypedLengthInvariantOperations(List<int> list) {
-  // length
-  Expect.equals(list.length, 4);
-  // operators [], []=.
-  for (int i = 0; i < 4; i++) list[i] = 0;
-  list[0] = 4;
-  Expect.listEquals([4, 0, 0, 0], list);
-  list[1] = 7;
-  Expect.listEquals([4, 7, 0, 0], list);
-  list[3] = 2;
-  Expect.listEquals([4, 7, 0, 2], list);
-
-  for (int i = 0; i < list.length; i++) {
-    list[i] = i;
-  }
-
-  // indexOf, lastIndexOf
-  for (int i = 0; i < 4; i++) {
-    Expect.equals(i, list[i]);
-    Expect.equals(i, list.indexOf(i));
-    Expect.equals(i, list.lastIndexOf(i));
-  }
-
-  // setRange.
-  list.setRange(0, 4, [3, 2, 1, 0]);
-  Expect.listEquals([3, 2, 1, 0], list);
-
-  list.setRange(1, 4, list);
-  Expect.listEquals([3, 3, 2, 1], list);
-
-  list.setRange(0, 3, list, 1);
-  Expect.listEquals([3, 2, 1, 1], list);
-  list.setRange(0, 3, list, 1);
-  Expect.listEquals([2, 1, 1, 1], list);
-
-  list.setRange(2, 4, list, 0);
-  Expect.listEquals([2, 1, 2, 1], list);
-
-  // setAll.
-  list.setAll(0, [3, 2, 0, 1]);
-  Expect.listEquals([3, 2, 0, 1], list);
-  list.setAll(1, [0, 1]);
-  Expect.listEquals([3, 0, 1, 1], list);
-
-  // fillRange.
-  list.fillRange(1, 3, 7);
-  Expect.listEquals([3, 7, 7, 1], list);
-  list.fillRange(0, 0, 9);
-  Expect.listEquals([3, 7, 7, 1], list);
-  list.fillRange(4, 4, 9);
-  Expect.listEquals([3, 7, 7, 1], list);
-  list.fillRange(0, 4, 9);
-  Expect.listEquals([9, 9, 9, 9], list);
-
-  // sort.
-  list.setRange(0, 4, [3, 2, 1, 0]);
-  list.sort();
-  Expect.listEquals([0, 1, 2, 3], list);
-  list.setRange(0, 4, [1, 2, 3, 0]);
-  list.sort();
-  Expect.listEquals([0, 1, 2, 3], list);
-  list.setRange(0, 4, [1, 3, 0, 2]);
-  list.sort((a, b) => b - a); // reverse compare.
-  Expect.listEquals([3, 2, 1, 0], list);
-  list.setRange(0, 4, [1, 2, 3, 0]);
-  list.sort((a, b) => b - a);
-  Expect.listEquals([3, 2, 1, 0], list);
-
-  // Some Iterable methods.
-
-  list.setRange(0, 4, [0, 1, 2, 3]);
-  // map.
-  testMap(val) {
-    return val * 2 + 10;
-  }
-
-  List mapped = list.map(testMap).toList();
-  Expect.equals(mapped.length, list.length);
-  for (var i = 0; i < list.length; i++) {
-    Expect.equals(mapped[i], list[i] * 2 + 10);
-  }
-
-  matchAll(val) => true;
-  matchSome(val) {
-    return (val == 1 || val == 2);
-  }
-
-  matchSomeFirst(val) {
-    return val == 0;
-  }
-
-  matchSomeLast(val) {
-    return val == 3;
-  }
-
-  matchNone(val) => false;
-
-  // where.
-  Iterable filtered = list.where(matchSome);
-  Expect.equals(filtered.length, 2);
-
-  // every
-  Expect.isTrue(list.every(matchAll));
-  Expect.isFalse(list.every(matchSome));
-  Expect.isFalse(list.every(matchNone));
-
-  // any
-  Expect.isTrue(list.any(matchAll));
-  Expect.isTrue(list.any(matchSome));
-  Expect.isTrue(list.any(matchSomeFirst));
-  Expect.isTrue(list.any(matchSomeLast));
-  Expect.isFalse(list.any(matchNone));
-
-  // Argument checking isn't implemented for typed arrays in browsers,
-  // so it's moved to the method below for now.
-}
-
-void testUntypedListTests(List list) {
-  // Tests that need untyped lists.
-  list.setAll(0, [0, 1, 2, 3]);
-  Expect.equals(-1, list.indexOf(100));
-  Expect.equals(-1, list.lastIndexOf(100));
-  list[2] = new Yes();
-  Expect.equals(2, list.indexOf(100));
-  Expect.equals(2, list.lastIndexOf(100));
-  list[3] = new Yes();
-  Expect.equals(2, list.indexOf(100));
-  Expect.equals(3, list.lastIndexOf(100));
-  list[2] = 2;
-  Expect.equals(3, list.indexOf(100));
-  Expect.equals(3, list.lastIndexOf(100));
-  list[3] = 3;
-  Expect.equals(-1, list.indexOf(100));
-  Expect.equals(-1, list.lastIndexOf(100));
-}
-
-void testLengthInvariantOperations(List<int> list) {
-  testTypedLengthInvariantOperations(list);
-
-  Expect.throwsTypeError(() => testUntypedListTests(list),
-      'List<int> cannot store non-ints');
-
-  // Argument errors on bad indices. List is still [0, 1, 2, 3].
-
-  // Direct indices (0 <= index < length).
-  Expect.throwsArgumentError(() => list[-1]);
-  Expect.throwsArgumentError(() => list[4]);
-  Expect.throwsArgumentError(() => list[-1] = 99);
-  Expect.throwsArgumentError(() => list[4] = 99);
-  Expect.throwsArgumentError(() => list.elementAt(-1));
-  Expect.throwsArgumentError(() => list.elementAt(4));
-  // Ranges (0 <= start <= end <= length).
-  Expect.throwsArgumentError(() => list.sublist(-1, 2));
-  Expect.throwsArgumentError(() => list.sublist(-1, 5));
-  Expect.throwsArgumentError(() => list.sublist(2, 5));
-  Expect.throwsArgumentError(() => list.sublist(4, 2));
-  Expect.throwsArgumentError(() => list.getRange(-1, 2));
-  Expect.throwsArgumentError(() => list.getRange(-1, 5));
-  Expect.throwsArgumentError(() => list.getRange(2, 5));
-  Expect.throwsArgumentError(() => list.getRange(4, 2));
-  Expect.throwsArgumentError(() => list.setRange(-1, 2, [1, 2, 3]));
-  Expect.throwsArgumentError(() => list.setRange(-1, 5, [1, 2, 3, 4, 5, 6]));
-  Expect.throwsArgumentError(() => list.setRange(2, 5, [1, 2, 3]));
-  Expect.throwsArgumentError(() => list.setRange(4, 2, [1, 2]));
-  // for setAll, end is implicitly start + values.length.
-  Expect.throwsArgumentError(() => list.setAll(-1, []));
-  Expect.throwsArgumentError(() => list.setAll(5, []));
-  Expect.throwsArgumentError(() => list.setAll(2, [1, 2, 3]));
-  Expect.throwsArgumentError(() => list.fillRange(-1, 2));
-  Expect.throwsArgumentError(() => list.fillRange(-1, 5));
-  Expect.throwsArgumentError(() => list.fillRange(2, 5));
-  Expect.throwsArgumentError(() => list.fillRange(4, 2));
-}
-
-void testTypedList(List<int> list) {
-  testTypedLengthInvariantOperations(list);
-  testCannotChangeLength(list);
-}
-
-void testFixedLengthList(List<T> Function<T>() createList) {
-  testLengthInvariantOperations(createList());
-  testCannotChangeLength(createList());
-  testUntypedListTests(createList());
-}
-
-void testCannotChangeLength(List<int> list) {
-  list.setAll(0, [0, 1, 2, 3]);
-  Expect.throwsUnsupportedError(() => list.add(0));
-  Expect.throwsUnsupportedError(() => list.addAll([0]));
-  Expect.throwsUnsupportedError(() => list.removeLast());
-  Expect.throwsUnsupportedError(() => list.insert(0, 1));
-  Expect.throwsUnsupportedError(() => list.insertAll(0, [1]));
-  Expect.throwsUnsupportedError(() => list.clear());
-  Expect.throwsUnsupportedError(() => list.remove(1));
-  Expect.throwsUnsupportedError(() => list.removeAt(1));
-  Expect.throwsUnsupportedError(() => list.removeRange(0, 1));
-  Expect.throwsUnsupportedError(() => list.replaceRange(0, 1, []));
-}
-
-void testTypedGrowableList(List<int> list) {
-  testLength(0, list);
-  // set length.
-  list.length = 4;
-  testLength(4, list);
-
-  testTypedLengthInvariantOperations(list);
-
-  testGrowableListOperations(list);
-}
-
-void testGrowableList(List<T> Function<T>() createList) {
-  List<int> list = createList();
-  testLength(0, list);
-  list.length = 4;
-  testLength(4, list);
-
-  testLengthInvariantOperations(list);
-  testGrowableListOperations(list);
-
-  List listDynamic = createList();
-  testLength(0, listDynamic);
-  listDynamic.length = 4;
-  testLength(4, listDynamic);
-
-  testUntypedListTests(listDynamic);
-}
-
-void testGrowableListOperations(List<int> list) {
-  // add, removeLast.
-  list.clear();
-  testLength(0, list);
-  list.add(4);
-  testLength(1, list);
-  Expect.equals(4, list.removeLast());
-  testLength(0, list);
-
-  for (int i = 0; i < 100; i++) {
-    list.add(i);
-  }
-
-  Expect.equals(list.length, 100);
-  for (int i = 0; i < 100; i++) {
-    Expect.equals(i, list[i]);
-  }
-
-  Expect.equals(17, list.indexOf(17));
-  Expect.equals(17, list.lastIndexOf(17));
-  Expect.equals(-1, list.indexOf(999));
-  Expect.equals(-1, list.lastIndexOf(999));
-
-  Expect.equals(99, list.removeLast());
-  testLength(99, list);
-
-  // remove.
-  Expect.isTrue(list.remove(4));
-  testLength(98, list);
-  Expect.isFalse(list.remove(4));
-  testLength(98, list);
-  list.clear();
-  testLength(0, list);
-
-  list.add(4);
-  list.add(4);
-  testLength(2, list);
-  Expect.isTrue(list.remove(4));
-  testLength(1, list);
-  Expect.isTrue(list.remove(4));
-  testLength(0, list);
-  Expect.isFalse(list.remove(4));
-  testLength(0, list);
-
-  // removeWhere, retainWhere
-  for (int i = 0; i < 100; i++) {
-    list.add(i);
-  }
-  testLength(100, list);
-  list.removeWhere((int x) => x.isOdd);
-  testLength(50, list);
-  for (int i = 0; i < list.length; i++) {
-    Expect.isTrue(list[i].isEven);
-  }
-  list.retainWhere((int x) => (x % 3) == 0);
-  testLength(17, list);
-  for (int i = 0; i < list.length; i++) {
-    Expect.isTrue((list[i] % 6) == 0);
-  }
-
-  // insert, remove, removeAt
-  list.clear();
-  testLength(0, list);
-
-  list.insert(0, 0);
-  Expect.listEquals([0], list);
-
-  list.insert(0, 1);
-  Expect.listEquals([1, 0], list);
-
-  list.insert(0, 2);
-  Expect.listEquals([2, 1, 0], list);
-
-  Expect.isTrue(list.remove(1));
-  Expect.listEquals([2, 0], list);
-
-  list.insert(1, 1);
-  Expect.listEquals([2, 1, 0], list);
-
-  list.removeAt(1);
-  Expect.listEquals([2, 0], list);
-
-  list.removeAt(1);
-  Expect.listEquals([2], list);
-
-  // insertAll
-  list.insertAll(0, [1, 2, 3]);
-  Expect.listEquals([1, 2, 3, 2], list);
-
-  list.insertAll(2, []);
-  Expect.listEquals([1, 2, 3, 2], list);
-
-  list.insertAll(4, [7, 9]);
-  Expect.listEquals([1, 2, 3, 2, 7, 9], list);
-
-  // addAll
-  list.addAll(list.reversed.toList());
-  Expect.listEquals([1, 2, 3, 2, 7, 9, 9, 7, 2, 3, 2, 1], list);
-
-  list.addAll([]);
-  Expect.listEquals([1, 2, 3, 2, 7, 9, 9, 7, 2, 3, 2, 1], list);
-
-  // replaceRange
-  list.replaceRange(3, 7, [0, 0]);
-  Expect.listEquals([1, 2, 3, 0, 0, 7, 2, 3, 2, 1], list);
-
-  list.replaceRange(2, 3, [5, 5, 5]);
-  Expect.listEquals([1, 2, 5, 5, 5, 0, 0, 7, 2, 3, 2, 1], list);
-
-  list.replaceRange(2, 4, [6, 6]);
-  Expect.listEquals([1, 2, 6, 6, 5, 0, 0, 7, 2, 3, 2, 1], list);
-
-  list.replaceRange(6, 8, []);
-  Expect.listEquals([1, 2, 6, 6, 5, 0, 2, 3, 2, 1], list);
-
-  // Any operation that doesn't change the length should be safe for iteration.
-  testSafeConcurrentModification(action()) {
-    list.length = 4;
-    list.setAll(0, [0, 1, 2, 3]);
-    for (var i in list) {
-      action();
-    }
-    list.forEach((e) => action());
-  }
-
-  testSafeConcurrentModification(() {
-    list.add(5);
-    list.removeLast();
-  });
-  testSafeConcurrentModification(() {
-    list.add(list[0]);
-    list.removeAt(0);
-  });
-  testSafeConcurrentModification(() {
-    list.insert(0, list.removeLast());
-  });
-  testSafeConcurrentModification(() {
-    list.replaceRange(1, 3, list.sublist(1, 3).reversed);
-  });
-
-  // Argument errors on bad indices for methods that are only allowed
-  // on growable lists.
-  list.length = 4;
-  list.setAll(0, [0, 1, 2, 3]);
-
-  // Direct indices (0 <= index < length).
-  Expect.throwsArgumentError(() => list.removeAt(-1));
-  Expect.throwsArgumentError(() => list.removeAt(4));
-  // Direct indices including end (0 <= index <= length).
-  Expect.throwsArgumentError(() => list.insert(-1, 0));
-  Expect.throwsArgumentError(() => list.insert(5, 0));
-  Expect.throwsArgumentError(() => list.insertAll(-1, [0]));
-  Expect.throwsArgumentError(() => list.insertAll(5, [0]));
-  Expect.throwsArgumentError(() => list.insertAll(-1, [0]));
-  Expect.throwsArgumentError(() => list.insertAll(5, [0]));
-  // Ranges (0 <= start <= end <= length).
-  Expect.throwsArgumentError(() => list.removeRange(-1, 2));
-  Expect.throwsArgumentError(() => list.removeRange(2, 5));
-  Expect.throwsArgumentError(() => list.removeRange(-1, 5));
-  Expect.throwsArgumentError(() => list.removeRange(4, 2));
-  Expect.throwsArgumentError(() => list.replaceRange(-1, 2, [9]));
-  Expect.throwsArgumentError(() => list.replaceRange(2, 5, [9]));
-  Expect.throwsArgumentError(() => list.replaceRange(-1, 5, [9]));
-  Expect.throwsArgumentError(() => list.replaceRange(4, 2, [9]));
-}
-
-class Yes {
-  operator ==(var other) => true;
-  int get hashCode => 0;
-}
-
-class MyList<E> extends ListBase<E> {
-  List<E> _source;
-  MyList(this._source);
-  int get length => _source.length;
-  void set length(int length) {
-    _source.length = length;
-  }
-
-  E operator [](int index) => _source[index];
-  void operator []=(int index, E value) {
-    _source[index] = value;
-  }
-}
-
-class MyFixedList<E> extends ListBase<E> {
-  List<E> _source;
-  MyFixedList(this._source);
-  int get length => _source.length;
-  void set length(int length) {
-    throw new UnsupportedError("Fixed length!");
-  }
-
-  E operator [](int index) => _source[index];
-  void operator []=(int index, E value) {
-    _source[index] = value;
-  }
-}
-
-void testListConstructor() {
-  // Is fixed-length.
-  Expect.throws(() => new List<dynamic>.filled(0, null).add(4));
-  Expect.throws(() => new List<dynamic>.filled(-2, null));  // Not negative. //# 01: ok
-  // Not null.
-  Expect.throws(() => new List<dynamic>.filled(null, null));
-  Expect.listEquals([4], []..add(4));
-  // Is fixed-length.
-  Expect.throws(() => new List<dynamic>.filled(0, 42).add(4));
-  // Not negative.
-  Expect.throws(() => new List<dynamic>.filled(-2, 42));
-  // Not null.
-  Expect.throws(() => new List<dynamic>.filled(null, 42));
-}
diff --git a/tests/corelib_2/list_to_string2_test.dart b/tests/corelib_2/list_to_string2_test.dart
deleted file mode 100644
index 87cd3d7b23b..00000000000
--- a/tests/corelib_2/list_to_string2_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  List list = [1, 2];
-  list.add(list);
-
-  List list2 = new List.filled(4, null);
-  list2[0] = 1;
-  list2[1] = 2;
-  list2[2] = list2;
-  list2[3] = list;
-
-  Expect.equals("[1, 2, [...]]", list.toString());
-  Expect.equals("[1, 2, [...], [1, 2, [...]]]", list2.toString());
-
-  // Throwing in the middle of a toString does not leave the
-  // list as being visited.
-  List list3 = [1, 2, new ThrowOnToString(), 4];
-  Expect.throws(list3.toString, (e) => e == "Bad!");
-  list3[2] = 3;
-  Expect.equals("[1, 2, 3, 4]", list3.toString());
-}
-
-class ThrowOnToString {
-  String toString() {
-    throw "Bad!";
-  }
-}
diff --git a/tests/corelib_2/list_to_string_test.dart b/tests/corelib_2/list_to_string_test.dart
deleted file mode 100644
index 9abbbb85465..00000000000
--- a/tests/corelib_2/list_to_string_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-
-class MyList extends ListBase {
-  final list;
-  MyList(this.list);
-
-  get length => list.length;
-  set length(val) {
-    list.length = val;
-  }
-
-  operator [](index) => list[index];
-  operator []=(index, val) => list[index] = val;
-}
-
-main() {
-  Expect.equals("[]", [].toString());
-  Expect.equals("[1]", [1].toString());
-  Expect.equals("[1, 2]", [1, 2].toString());
-  Expect.equals("[]", const [].toString());
-  Expect.equals("[1]", const [1].toString());
-  Expect.equals("[1, 2]", const [1, 2].toString());
-  Expect.equals("[]", new MyList([]).toString());
-  Expect.equals("[1]", new MyList([1]).toString());
-  Expect.equals("[1, 2]", new MyList([1, 2]).toString());
-}
diff --git a/tests/corelib_2/list_unmodifiable_cast_test.dart b/tests/corelib_2/list_unmodifiable_cast_test.dart
deleted file mode 100644
index 8defd250aeb..00000000000
--- a/tests/corelib_2/list_unmodifiable_cast_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library list_unmodifiable_cast_test;
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-
-void main() {
-  test(const [37]);
-  test(new UnmodifiableListView([37]));
-
-  test(new UnmodifiableListView<num>(<num>[37]));
-  test(new UnmodifiableListView<num>(<int>[37]));
-
-  test(new UnmodifiableListView<num>(<num>[37]).cast<int>());
-  test(new UnmodifiableListView<num>(<int>[37]).cast<int>());
-  test(new UnmodifiableListView<Object>(<num>[37]).cast<int>());
-  test(new UnmodifiableListView<Object>(<int>[37]).cast<num>());
-
-  var m2 = new List<num>.unmodifiable([37]);
-  test(m2);
-  test(m2.cast<int>());
-}
-
-void test(List list) {
-  Expect.equals(1, list.length);
-  Expect.equals(37, list.first);
-
-  Expect.throws(list.clear);
-  Expect.throws(() {
-    list.remove(37);
-  });
-  Expect.throws(() {
-    list[0] = 42;
-  });
-  Expect.throws(() {
-    list.addAll(<int>[42]);
-  });
-}
diff --git a/tests/corelib_2/list_unmodifiable_test.dart b/tests/corelib_2/list_unmodifiable_test.dart
deleted file mode 100644
index cbd217b0b1b..00000000000
--- a/tests/corelib_2/list_unmodifiable_test.dart
+++ /dev/null
@@ -1,314 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "dart:collection";
-import "dart:typed_data";
-
-main() {
-  var intTest = new Test<int>();
-  intTest.run("ConstList", createConstList);
-  intTest.run("FixedList", createFixedList);
-  intTest.run("GrowableList", createGrowableList);
-  intTest.run("ConstMapKeys", createConstMapKeys);
-  intTest.run("ConstMapValues", createConstMapValues);
-  intTest.run("MapKeys", createMapKeys);
-  intTest.run("MapValues", createMapValues);
-  intTest.run("SplayMapKeys", createSplayMapKeys);
-  intTest.run("SplayMapValues", createSplayMapValues);
-  intTest.run("Set", createSet);
-  intTest.run("SplaySet", createSplaySet);
-  intTest.run("Queue", createQueue);
-  intTest.run("ListMapKeys", createListMapKeys);
-  intTest.run("ListMapValues", createListMapValues);
-  intTest.run("CodeUnits", createCodeUnits);
-  intTest.run("TypedList", createTypedList);
-
-  new Test<String>().test("strings", ["a", "b", "c"]);
-
-  new Test<num>().test("superclass", <int>[1, 2, 3]);
-  new Test<int>().test("subclass", <num>[1, 2, 3]);
-}
-
-class Test<E> {
-  run(name, Iterable create(int size)) {
-    test(name, create(0));
-    test(name, create(1));
-    test(name, create(3));
-  }
-
-  test(name, iterable) {
-    testSingle(name, iterable);
-    testSingle("$name-where", iterable.where((x) => true));
-    testSingle("$name-map", iterable.map((x) => x));
-    testSingle("$name-expand", iterable.expand((x) => [x, x]));
-    testSingle("$name-skip", iterable.skip(1));
-    testSingle("$name-take", iterable.take(2));
-    testSingle("$name-skipWhile", iterable.skipWhile((x) => false));
-    testSingle("$name-takeWhile", iterable.takeWhile((x) => true));
-  }
-
-  testSingle(name, iterable) {
-    var elements = iterable.toList();
-    int length = elements.length;
-
-    var list = new List<E>.unmodifiable(iterable);
-
-    Expect.isTrue(list is List<E>, "$name-type-$E");
-    Expect.isTrue(list is! List<Test>, "$name-!type-!$E");
-
-    checkElements() {
-      Expect.equals(length, list.length);
-      for (int i = 0; i < length; i++) {
-        Expect.identical(elements[i], list[i], "$name-identical-$i");
-      }
-    }
-
-    checkElements();
-
-    throws(funcName, func) {
-      try {
-        func();
-      } catch (e, s) {
-        Expect.isTrue(e is UnsupportedError, "$name: $funcName threw $e");
-        return;
-      }
-      checkElements();
-      Expect.fail("$name: $funcName didn't throw");
-    }
-
-    throws("[]=", () {
-      list[0] = null;
-    });
-    throws("length=", () {
-      list.length = length + 1;
-    });
-    throws("length=", () {
-      list.length = length - 1;
-    });
-    throws("setAll", () {
-      list.setAll(0, []);
-    });
-    throws("add", () {
-      list.add(null);
-    });
-    throws("insert", () {
-      list.insert(0, null);
-    });
-    throws("insertAll", () {
-      list.insertAll(0, []);
-    });
-    throws("addAll", () {
-      list.addAll([]);
-    });
-    throws("remove", () {
-      list.remove(null);
-    });
-    throws("removeWhere", () {
-      list.removeWhere((x) => true);
-    });
-    throws("retainWhere", () {
-      list.retainWhere((x) => false);
-    });
-    throws("sort", () {
-      list.sort();
-    });
-    throws("shuffle", () {
-      list.shuffle();
-    });
-    throws("clear", () {
-      list.clear();
-    });
-    throws("removeAt", () {
-      list.removeAt(0);
-    });
-    throws("removeLast", () {
-      list.removeLast();
-    });
-    throws("setRange", () {
-      list.setRange(0, 1, []);
-    });
-    throws("removeRange", () {
-      list.removeRange(0, 1);
-    });
-    throws("replaceRange", () {
-      list.replaceRange(0, 1, []);
-    });
-    throws("fillRange", () {
-      list.fillRange(0, 1, null);
-    });
-
-    success(opName, op(List list), [bool throws = false]) {
-      if (throws) {
-        var e1, e2;
-        Expect.throws(() => op(elements), (e) {
-          e1 = e;
-          return true;
-        }, '$name :: $opName should throw for $elements');
-        Expect.throws(() => op(list), (e) {
-          e2 = e;
-          return true;
-        }, '$name :: $opName should throw for $list');
-        Expect.equals(
-            e1.runtimeType,
-            e2.runtimeType,
-            "$name :: $opName threw different errors for $elements and $list: "
-            "${e1.runtimeType} vs ${e2.runtimeType}");
-        return;
-      }
-      var expect = op(elements);
-      var actual = op(list);
-      checkElements();
-      if (expect is List) {
-        Expect.listEquals(expect, actual, "$name-$opName");
-      } else if (expect is Iterable) {
-        Expect.isTrue(actual is Iterable);
-        Expect.listEquals(expect.toList(), actual.toList(), "$name-$opName");
-      } else {
-        Expect.equals(expect, actual, "$name-$opName");
-      }
-    }
-
-    success("indexOf", (l) => l.indexOf(null));
-    success("lastIndexOf", (l) => l.lastIndexOf(null));
-    success("contains", (l) => l.contains(2));
-    success("elementAt", (l) => l.elementAt(1), list.length < 2);
-    success("reversed", (l) => l.reversed);
-    success("sublist0-1", (l) => l.sublist(0, 1), list.isEmpty);
-    success("getRange0-1", (l) => l.getRange(0, 1), list.isEmpty);
-    success("asMap-keys", (l) => l.asMap().keys);
-    success("asMap-values", (l) => l.asMap().values);
-    success("where", (l) => l.where((x) => true));
-    success("map", (l) => l.map((x) => x));
-    success("expand", (l) => l.expand((x) => [x, x]));
-    success("skip", (l) => l.skip(1));
-    success("take", (l) => l.take(1));
-    success("skipWhile", (l) => l.skipWhile((x) => false));
-    success("takeWhile", (l) => l.takeWhile((x) => true));
-    success("first", (l) => l.first, list.isEmpty);
-    success("last", (l) => l.last, list.isEmpty);
-    success("single", (l) => l.single, list.length != 1);
-    success("firstWhere", (l) => l.firstWhere((x) => true), list.isEmpty);
-    success("lastWhere", (l) => l.lastWhere((x) => true), list.isEmpty);
-    success("singleWhere", (l) => l.singleWhere((x) => true), list.length != 1);
-    success("isEmpty", (l) => l.isEmpty);
-    success("isNotEmpty", (l) => l.isNotEmpty);
-    success("join", (l) => l.join("/"));
-    success("fold", (l) => l.fold("--", (a, b) => "$a/$b"));
-    if (elements is List<num> && list is List<num>) {
-      success(
-          "reduce",
-          (l) => (l as List<num>).reduce((a, b) => (a + b).floor()),
-          list.isEmpty);
-    }
-    success("every", (l) => l.every((x) => x == 0));
-    success("any", (l) => l.any((x) => x == 2));
-    success("toList", (l) => l.toList());
-    success("toSet", (l) => l.toSet());
-    success("toString", (l) => l.toString());
-
-    var it = elements.iterator;
-    list.forEach((v) {
-      Expect.isTrue(it.moveNext());
-      Expect.equals(it.current, v);
-    });
-    Expect.isFalse(it.moveNext());
-
-    if (elements is List<int> && list is List<int>) {
-      success("String.fromCharCodes",
-          (l) => new String.fromCharCodes(l as List<int>));
-    }
-  }
-}
-
-List<int> createConstList(int n) {
-  if (n == 0) return const <int>[];
-  return const <int>[1, 2, 3];
-}
-
-List<int> createFixedList(int n) {
-  var result = new List<int>.filled(n, null);
-  for (int i = 0; i < n; i++) result[i] = n;
-  return result;
-}
-
-List<int> createGrowableList(int n) {
-  var result = <int>[]..length = n;
-  for (int i = 0; i < n; i++) result[i] = n;
-  return result;
-}
-
-Iterable createIterable(int n) => new Iterable.generate(n);
-Iterable createConstMapKeys(int n) {
-  if (n == 0) return const <int, int>{}.keys;
-  return const <int, int>{0: 0, 1: 1, 2: 2}.keys;
-}
-
-Iterable createConstMapValues(int n) {
-  if (n == 0) return const <int, int>{}.values;
-  return const <int, int>{0: 0, 1: 1, 2: 2}.values;
-}
-
-Iterable createMapKeys(int n) {
-  var map = <int, int>{};
-  for (int i = 0; i < n; i++) map[i] = i;
-  return map.keys;
-}
-
-Iterable createMapValues(int n) {
-  var map = <int, int>{};
-  for (int i = 0; i < n; i++) map[i] = i;
-  return map.values;
-}
-
-Iterable createSplayMapKeys(int n) {
-  var map = new SplayTreeMap<int, int>();
-  for (int i = 0; i < n; i++) map[i] = i;
-  return map.keys;
-}
-
-Iterable createSplayMapValues(int n) {
-  var map = new SplayTreeMap<int, int>();
-  for (int i = 0; i < n; i++) map[i] = i;
-  return map.values;
-}
-
-Set<int> createSet(int n) {
-  var set = new Set<int>();
-  for (int i = 0; i < n; i++) set.add(i);
-  return set;
-}
-
-SplayTreeSet<int> createSplaySet(int n) {
-  var set = new SplayTreeSet<int>();
-  for (int i = 0; i < n; i++) set.add(i);
-  return set;
-}
-
-Queue<int> createQueue(int n) {
-  var queue = new Queue<int>();
-  for (int i = 0; i < n; i++) queue.add(i);
-  return queue;
-}
-
-Iterable createListMapKeys(int n) {
-  return createGrowableList(n).asMap().keys;
-}
-
-Iterable createListMapValues(int n) {
-  return createGrowableList(n).asMap().values;
-}
-
-Iterable createCodeUnits(int n) {
-  var string = new String.fromCharCodes(new Iterable.generate(n));
-  return string.codeUnits;
-}
-
-Uint8List createTypedList(int n) {
-  var tl = new Uint8List(n);
-  for (int i = 0; i < n; i++) tl[i] = i;
-  return tl;
-}
diff --git a/tests/corelib_2/list_write_elements_test.dart b/tests/corelib_2/list_write_elements_test.dart
deleted file mode 100644
index f850375c57f..00000000000
--- a/tests/corelib_2/list_write_elements_test.dart
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:typed_data";
-import "package:expect/expect.dart";
-
-void main() {
-  test([1, 2, 3, 4], [5, 6], 2, [1, 2, 5, 6]);
-  test([1, 2, 3, 4], [5, 6], 0, [5, 6, 3, 4]);
-  test([1, 2, 3, 4], [5, 6], 1, [1, 5, 6, 4]);
-  test([1, 2, 3, 4], [], 2, [1, 2, 3, 4]);
-  test([1, 2, 3, 4], [5, 6], 2, [1, 2, 5, 6]);
-  test([1, 2, 3, 4], [5, 6], 2, [1, 2, 5, 6]);
-  test([1, 2, 3, 4], [5, 6], 2, [1, 2, 5, 6]);
-  test([], [], 0, []);
-  test([1], [2], 0, [2]);
-
-  // Other (non-list) iterables.
-  test([1, 2, 3, 4], new Iterable.generate(2, (x) => x + 7), 1, [1, 7, 8, 4]);
-  test([1, 2, 3, 4], [9, 9, 5, 6].skip(2), 1, [1, 5, 6, 4]);
-  test([1, 2, 3, 4], [5, 6, 9, 9].take(2), 1, [1, 5, 6, 4]);
-  test([1, 2, 3, 4], [9, 5, 9, 6, 9, 9].where((x) => x != 9), 1, [1, 5, 6, 4]);
-  test([1, 2, 3, 4], new Set.from([5, 6]), 1, [1, 5, 6, 4]);
-
-  // Other types of lists.
-  test(new Uint8List(4), [5, 6], 1, [0, 5, 6, 0]);
-  test(new Uint8List(4), [-5, 6], 1, [0, 256 - 5, 6, 0]);
-
-  // Over-long iterables. Updates until end, then throws.
-  testThrows([], [1], 0);
-  testThrows([2], [1], 1);
-  testThrows([2], [1], 1);
-  testThrows([1, 2, 3, 4], [5, 6, 7, 8], 2, [1, 2, 5, 6]);
-
-  // Throwing iterable.
-  Expect.throws(() {
-    Iterable<int> throwingIterable() sync* {
-      yield 1;
-      throw "2";
-    }
-
-    List.writeIterable([1, 2, 3], 1, throwingIterable());
-  }, (e) => e == "2");
-
-  // Bad start index.
-  testThrows([1, 2], [1], -1);
-  testThrows([1, 2], [1], 2);
-
-  // Working at a supertype is practical and useful.
-  test<Object>(<int>[1, 2, 3, 4], <num>[5, 6], 1, [1, 5, 6, 4]);
-
-  var d = new D();
-  test<Object>(<B>[null], <C>[d], 0, [d]);
-}
-
-testThrows<T>(list, iterable, start, [expect]) {
-  Expect.throws(() {
-    List.writeIterable<T>(list, start, iterable);
-  });
-  if (expect != null) {
-    Expect.listEquals(expect, list);
-  }
-}
-
-test<T>(List<T> list, Iterable<T> iterable, int start, List expect) {
-  List.writeIterable<T>(list, start, iterable);
-  Expect.listEquals(expect, list);
-}
-
-class B {}
-
-class C {}
-
-class D implements B, C {}
diff --git a/tests/corelib_2/local_date_time_test.dart b/tests/corelib_2/local_date_time_test.dart
deleted file mode 100644
index b0aaae366bb..00000000000
--- a/tests/corelib_2/local_date_time_test.dart
+++ /dev/null
@@ -1,192 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Tests that local DateTime constructor works correctly around
-// time zone changes.
-
-void main() {
-  // Find two points in time with different time zones.
-  // Search linearly back from 2020-01-01 in steps of 60 days.
-  // Stop if reaching 1970-01-01 (epoch) without finding anything.
-  var time = DateTime.utc(2020, 1, 1).millisecondsSinceEpoch;
-  var offset =
-      DateTime.fromMillisecondsSinceEpoch(time).timeZoneOffset.inMilliseconds;
-  var time2 = time;
-  var offset2 = offset;
-  // Whether the first change found moved the clock forward.
-  bool changeForward = false;
-  // 60 days.
-  const delta = 60 * Duration.millisecondsPerDay;
-  while (time2 > 0) {
-    time2 -= delta;
-    offset2 = DateTime.fromMillisecondsSinceEpoch(time2)
-        .timeZoneOffset
-        .inMilliseconds;
-    if (verbose) {
-      print("Search: ${tz(time2, offset2)} - ${tz(time, offset)}");
-    }
-    if (offset2 != offset) {
-      // Two different time zones found. Now find the precise (to the minute)
-      // time where a change happened, and test that.
-      test(findChange(time2, time));
-      // Remember if the change moved the clock forward or backward.
-      changeForward = offset2 < offset;
-      break;
-    }
-  }
-  time = time2;
-  // Find a change in the other direction.
-  // Keep iterating backwards to find another time zone
-  // where the change was in the other direction.
-  while (time > 0) {
-    time -= delta;
-    offset =
-        DateTime.fromMillisecondsSinceEpoch(time).timeZoneOffset.inMilliseconds;
-    if (verbose) {
-      print("Search: ${tz(time2, offset2)} - ${tz(time, offset)}");
-    }
-    if (offset != offset2) {
-      if ((offset < offset2) != changeForward) {
-        test(findChange(time, time2));
-        break;
-      } else {
-        // Another change in the same direction.
-        // Probably rare, but move use this time
-        // as end-point instead, so the binary search will be shorter.
-        time2 = time;
-        offset2 = offset;
-      }
-    }
-  }
-}
-
-/// Tests that a local time zone change is correctly represented
-/// by local time [DateTime] objects created from date-time values.
-void test(TimeZoneChange change) {
-  if (verbose) print("Test of $change");
-  // Sanity check. The time zones match the [change] one second
-  // before and after the change.
-  var before = DateTime.fromMillisecondsSinceEpoch(
-      change.msSinceEpoch - Duration.millisecondsPerSecond);
-  Expect.equals(change.msOffsetBefore, before.timeZoneOffset.inMilliseconds);
-  var after = DateTime.fromMillisecondsSinceEpoch(
-      change.msSinceEpoch + Duration.millisecondsPerSecond);
-  Expect.equals(change.msOffsetAfter, after.timeZoneOffset.inMilliseconds);
-
-  if (verbose) print("From MS    : ${dtz(before)} --- ${dtz(after)}");
-
-  // Create local DateTime objects for the same YMDHMS as the
-  // values above. See that we pick the correct local time for them.
-
-  // One second before the change, even if clock moves backwards,
-  // we pick a value that is in the earlier time zone.
-  var localBefore = DateTime(before.year, before.month, before.day, before.hour,
-      before.minute, before.second);
-  Expect.equals(before, localBefore);
-
-  // Asking for a calendar date one second after the change.
-  var localAfter = DateTime(after.year, after.month, after.day, after.hour,
-      after.minute, after.second);
-  if (verbose) print("From YMDHMS: ${dtz(localBefore)} --- ${dtz(localAfter)}");
-  if (before.timeZoneOffset < after.timeZoneOffset) {
-    // Clock moved forwards.
-    // We're asking for a clock time which doesn't exist.
-    if (verbose) {
-      print("Forward: ${dtz(after)} vs ${dtz(localAfter)}");
-    }
-    Expect.equals(after, localAfter);
-  } else {
-    // Clock moved backwards.
-    // We're asking for a clock time which exists more than once.
-    // Should be in the former time zone.
-    Expect.equals(before.timeZoneOffset, localAfter.timeZoneOffset);
-  }
-}
-
-/// Finds a time zone change between [before] and [after].
-///
-/// The [before] time must be before [after],
-/// and the local time zone at the two points must be different.
-///
-/// Finds the point in time, with one minute precision,
-/// where the time zone changed, and returns this point,
-/// as well as the time zone offset before and after the change.
-TimeZoneChange findChange(int before, int after) {
-  var min = Duration.millisecondsPerMinute;
-  assert(before % min == 0);
-  assert(after % min == 0);
-  var offsetBefore =
-      DateTime.fromMillisecondsSinceEpoch(before).timeZoneOffset.inMilliseconds;
-  var offsetAfter =
-      DateTime.fromMillisecondsSinceEpoch(after).timeZoneOffset.inMilliseconds;
-  // Binary search for the precise (to 1 minute increments)
-  // time where the change happened.
-  while (after - before > min) {
-    var mid = before + (after - before) ~/ 2;
-    mid -= mid % min;
-    var offsetMid =
-        DateTime.fromMillisecondsSinceEpoch(mid).timeZoneOffset.inMilliseconds;
-    if (verbose) {
-      print(
-          "Bsearch: ${tz(before, offsetBefore)} - ${tz(mid, offsetMid)} - ${tz(after, offsetAfter)}");
-    }
-    if (offsetMid == offsetBefore) {
-      before = mid;
-    } else if (offsetMid == offsetAfter) {
-      after = mid;
-    } else {
-      // Third timezone in the middle. Probably rare.
-      // Use that as either before or after.
-      // Keep the direction of the time zone change.
-      var forwardChange = offsetAfter > offsetBefore;
-      if ((offsetMid > offsetBefore) == forwardChange) {
-        after = mid;
-        offsetAfter = offsetMid;
-      } else {
-        before = mid;
-        offsetBefore = offsetMid;
-      }
-    }
-  }
-  return TimeZoneChange(after, offsetBefore, offsetAfter);
-}
-
-/// A local time zone change.
-class TimeZoneChange {
-  /// The point in time where the clocks were adjusted.
-  final int msSinceEpoch;
-
-  /// The time zone offset before the change.
-  final int msOffsetBefore;
-
-  /// The time zone offset since the change.
-  final int msOffsetAfter;
-  TimeZoneChange(this.msSinceEpoch, this.msOffsetBefore, this.msOffsetAfter);
-  String toString() {
-    var local = DateTime.fromMillisecondsSinceEpoch(msSinceEpoch);
-    var offsetBefore = Duration(milliseconds: msOffsetBefore);
-    var offsetAfter = Duration(milliseconds: msOffsetAfter);
-    return "$local (${ltz(offsetBefore)} -> ${ltz(offsetAfter)})";
-  }
-}
-
-// Helpers when printing timezones.
-
-/// Point in time in ms since epoch, and known offset in ms.
-String tz(int ms, int offset) => "${DateTime.fromMillisecondsSinceEpoch(ms)}"
-    "${ltz(Duration(milliseconds: offset))}";
-
-/// Time plus Zone from DateTime
-String dtz(DateTime dt) => "$dt${dt.isUtc ? "" : ltz(dt.timeZoneOffset)}";
-
-/// Time zone from duration ("+h:ss" format).
-String ltz(Duration d) => "${d.isNegative ? "-" : "+"}${d.inHours}"
-    ":${(d.inMinutes % 60).toString().padLeft(2, "0")}";
-
-/// Set to true if debugging.
-const bool verbose = false;
diff --git a/tests/corelib_2/main_test.dart b/tests/corelib_2/main_test.dart
deleted file mode 100644
index ee75e4e8f23..00000000000
--- a/tests/corelib_2/main_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library main_test;
-
-import "package:expect/expect.dart";
-
-main(List<String> args) {
-  Expect.equals(0, args.length);
-}
diff --git a/tests/corelib_2/map_contains_key_test.dart b/tests/corelib_2/map_contains_key_test.dart
deleted file mode 100644
index 182840ea92d..00000000000
--- a/tests/corelib_2/map_contains_key_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  const A();
-}
-
-class B extends A {
-  const B();
-}
-
-main() {
-  var map1 = new Map<B, B>();
-  map1[const B()] = const B();
-  var map2 = new Map<B, B>();
-  var list = <B>[const B()];
-
-  var maps = [map1, map2];
-  for (var map in maps) {
-    // Test that the map accepts a key is not of the same type:
-    //   Map<B, ?>.containsValue(A)
-    Expect.isFalse(map.containsKey(new A()));
-  }
-}
diff --git a/tests/corelib_2/map_contains_value_test.dart b/tests/corelib_2/map_contains_value_test.dart
deleted file mode 100644
index dc9ad1dc870..00000000000
--- a/tests/corelib_2/map_contains_value_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  const A();
-}
-
-class B extends A {
-  const B();
-}
-
-main() {
-  var map1 = new Map<B, B>();
-  map1[const B()] = const B();
-  var map2 = new Map<B, B>();
-  var list = <B>[const B()];
-  Map<int, B> map3 = list.asMap();
-
-  var maps = [map1, map2, map3];
-  for (var map in maps) {
-    // Test that the map accepts a value is not of the same type:
-    //   Map<?, B>.containsValue(A)
-    Expect.isFalse(map.containsValue(new A()));
-  }
-}
diff --git a/tests/corelib_2/map_entry_test.dart b/tests/corelib_2/map_entry_test.dart
deleted file mode 100644
index fccd622b93f..00000000000
--- a/tests/corelib_2/map_entry_test.dart
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-import 'dart:convert' show json;
-
-var baseMap = const {"x": 0, "y": 1};
-
-void main() {
-  var entry = new MapEntry<int, int>(1, 2);
-  Expect.isTrue(entry is MapEntry<int, int>);
-  Expect.isTrue(entry is! MapEntry<String, String>);
-  Expect.isTrue(entry is! MapEntry<Null, Null>);
-  Expect.equals(1, entry.key);
-  Expect.equals(2, entry.value);
-  Expect.equals("MapEntry(1: 2)", "$entry");
-  dynamic dynEntry = entry;
-  Expect.throwsNoSuchMethodError(() {
-    dynEntry.key = 0;
-  }, "key not settable");
-  Expect.throwsNoSuchMethodError(() {
-    dynEntry.value = 0;
-  }, "value not settable");
-
-  checkEntries(baseMap, baseMap);
-  checkEntries(baseMap, new Map<String, Object>.unmodifiable(baseMap));
-  checkMap({"x": 0, "y": 1});
-  checkMap(new Map<String, dynamic>.from(baseMap));
-  checkMap(new HashMap<String, dynamic>.from(baseMap));
-  checkMap(new LinkedHashMap<String, dynamic>.from(baseMap));
-  checkMap(new SplayTreeMap<String, dynamic>.from(baseMap));
-  checkMap(json.decode('{"x":0,"y":1}'));
-}
-
-void checkMap(Map<String, dynamic> map) {
-  checkEntries(baseMap, map);
-  map.addEntries([new MapEntry<String, dynamic>("z", 2)]);
-  checkEntries({"x": 0, "y": 1, "z": 2}, map);
-  map.addEntries(<MapEntry<String, dynamic>>[
-    new MapEntry("y", 11),
-    new MapEntry("v", 3),
-    new MapEntry("w", 4)
-  ]);
-  checkEntries({"v": 3, "w": 4, "x": 0, "y": 11, "z": 2}, map);
-
-  var valueMap = map.map<int, String>((key, value) => new MapEntry(value, key));
-  checkEntries({0: "x", 2: "z", 3: "v", 4: "w", 11: "y"}, valueMap);
-}
-
-void checkEntries(Map expected, Map map) {
-  int byKey(MapEntry e1, MapEntry e2) => e1.key.compareTo(e2.key);
-  Expect.equals(expected.length, map.entries.length);
-  var sorted = map.entries.toList()..sort(byKey);
-  Expect.equals(expected.length, sorted.length);
-  var expectedEntries = expected.entries.toList();
-  for (int i = 0; i < sorted.length; i++) {
-    Expect.equals(expectedEntries[i].key, sorted[i].key);
-    Expect.equals(expectedEntries[i].value, sorted[i].value);
-  }
-}
diff --git a/tests/corelib_2/map_from_entries_test.dart b/tests/corelib_2/map_from_entries_test.dart
deleted file mode 100644
index 9ec32e32949..00000000000
--- a/tests/corelib_2/map_from_entries_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:collection';
-
-import 'package:expect/expect.dart';
-
-main() {
-  runTests(<K, V>(entries) => Map<K, V>.fromEntries(entries));
-  runTests(<K, V>(entries) => HashMap<K, V>.fromEntries(entries));
-  runTests(<K, V>(entries) => LinkedHashMap<K, V>.fromEntries(entries));
-}
-
-void runTests(Map<K, V> Function<K, V>(Iterable<MapEntry<K, V>>) ctor) {
-  fromEntriesTest(ctor);
-  emptyIterableTest(ctor);
-  equalElementsTest(ctor);
-}
-
-void fromEntriesTest(Map<K, V> Function<K, V>(Iterable<MapEntry<K, V>>) ctor) {
-  var map = ctor([MapEntry(1, "one"), MapEntry(2, "two")]);
-  Expect.equals(2, map.length);
-  Expect.equals(2, map.keys.length);
-  Expect.equals(2, map.values.length);
-  Expect.equals("one", map[1]);
-  Expect.equals("two", map[2]);
-}
-
-void emptyIterableTest(
-    Map<K, V> Function<K, V>(Iterable<MapEntry<K, V>>) ctor) {
-  var map = ctor([]);
-  Expect.equals(0, map.length);
-  Expect.equals(0, map.keys.length);
-  Expect.equals(0, map.values.length);
-}
-
-void equalElementsTest(
-    Map<K, V> Function<K, V>(Iterable<MapEntry<K, V>>) ctor) {
-  var map =
-      ctor([MapEntry(1, "one"), MapEntry(2, "two"), MapEntry(2, "other")]);
-  Expect.equals(2, map.length);
-  Expect.equals(2, map.keys.length);
-  Expect.equals(2, map.values.length);
-  Expect.equals("one", map[1]);
-  Expect.equals("other", map[2]);
-}
diff --git a/tests/corelib_2/map_from_iterable_test.dart b/tests/corelib_2/map_from_iterable_test.dart
deleted file mode 100644
index 06825aa6e94..00000000000
--- a/tests/corelib_2/map_from_iterable_test.dart
+++ /dev/null
@@ -1,113 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-
-main() {
-  defaultFunctionValuesTest();
-  defaultKeyFunctionTest();
-  defaultValueFunctionTest();
-  noDefaultValuesTest();
-  emptyIterableTest();
-  equalElementsTest();
-  genericTypeTest();
-}
-
-void defaultFunctionValuesTest() {
-  var map = new HashMap.fromIterable([1, 2, 3]);
-
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is HashMap);
-
-  Expect.equals(3, map.length);
-  Expect.equals(3, map.keys.length);
-  Expect.equals(3, map.values.length);
-
-  Expect.equals(1, map[1]);
-  Expect.equals(2, map[2]);
-  Expect.equals(3, map[3]);
-}
-
-void defaultKeyFunctionTest() {
-  var map = new HashMap.fromIterable([1, 2, 3], value: (x) => x + 1);
-
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is HashMap);
-
-  Expect.equals(3, map.length);
-  Expect.equals(3, map.keys.length);
-  Expect.equals(3, map.values.length);
-
-  Expect.equals(2, map[1]);
-  Expect.equals(3, map[2]);
-  Expect.equals(4, map[3]);
-}
-
-void defaultValueFunctionTest() {
-  var map = new HashMap.fromIterable([1, 2, 3], key: (x) => x + 1);
-
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is HashMap);
-
-  Expect.equals(3, map.length);
-  Expect.equals(3, map.keys.length);
-  Expect.equals(3, map.values.length);
-
-  Expect.equals(1, map[2]);
-  Expect.equals(2, map[3]);
-  Expect.equals(3, map[4]);
-}
-
-void noDefaultValuesTest() {
-  var map = new HashMap.fromIterable([1, 2, 3],
-      key: (x) => x + 1, value: (x) => x - 1);
-
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is HashMap);
-
-  Expect.equals(3, map.length);
-  Expect.equals(3, map.keys.length);
-  Expect.equals(3, map.values.length);
-
-  Expect.equals(0, map[2]);
-  Expect.equals(1, map[3]);
-  Expect.equals(2, map[4]);
-}
-
-void emptyIterableTest() {
-  var map = new HashMap.fromIterable([]);
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is HashMap);
-
-  Expect.equals(0, map.length);
-  Expect.equals(0, map.keys.length);
-  Expect.equals(0, map.values.length);
-}
-
-void equalElementsTest() {
-  var map = new HashMap.fromIterable([1, 2, 2], key: (x) => x + 1);
-
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is HashMap);
-
-  Expect.equals(2, map.length);
-  Expect.equals(2, map.keys.length);
-  Expect.equals(2, map.values.length);
-
-  Expect.equals(1, map[2]);
-  Expect.equals(2, map[3]);
-}
-
-void genericTypeTest() {
-  var map = new HashMap<String, String>.fromIterable(<int>[1, 2, 3],
-      key: (x) => '$x', value: (x) => '$x');
-  Expect.isTrue(map is Map<String, String>);
-
-  // Make sure it is not just Map<dynamic, dynamic>.
-  Expect.isFalse(map is Map<int, dynamic>);
-  Expect.isFalse(map is Map<dynamic, int>);
-}
diff --git a/tests/corelib_2/map_from_iterables_test.dart b/tests/corelib_2/map_from_iterables_test.dart
deleted file mode 100644
index 99ab8cc807e..00000000000
--- a/tests/corelib_2/map_from_iterables_test.dart
+++ /dev/null
@@ -1,80 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-
-main() {
-  positiveTest();
-  emptyMapTest();
-  fewerKeysIterableTest();
-  fewerValuesIterableTest();
-  equalElementsTest();
-  genericTypeTest();
-}
-
-void positiveTest() {
-  var map = new Map.fromIterables([1, 2, 3], ["one", "two", "three"]);
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is LinkedHashMap);
-
-  Expect.equals(3, map.length);
-  Expect.equals(3, map.keys.length);
-  Expect.equals(3, map.values.length);
-
-  Expect.equals("one", map[1]);
-  Expect.equals("two", map[2]);
-  Expect.equals("three", map[3]);
-}
-
-void emptyMapTest() {
-  var map = new Map.fromIterables([], []);
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is LinkedHashMap);
-
-  Expect.equals(0, map.length);
-  Expect.equals(0, map.keys.length);
-  Expect.equals(0, map.values.length);
-}
-
-void fewerValuesIterableTest() {
-  Expect.throws(() => new Map.fromIterables([1, 2], [0]));
-}
-
-void fewerKeysIterableTest() {
-  Expect.throws(() => new Map.fromIterables([1], [0, 2]));
-}
-
-void equalElementsTest() {
-  var map = new Map.fromIterables([1, 2, 2], ["one", "two", "three"]);
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is LinkedHashMap);
-
-  Expect.equals(2, map.length);
-  Expect.equals(2, map.keys.length);
-  Expect.equals(2, map.values.length);
-
-  Expect.equals("one", map[1]);
-  Expect.equals("three", map[2]);
-}
-
-void genericTypeTest() {
-  var map =
-      new Map<int, String>.fromIterables([1, 2, 3], ["one", "two", "three"]);
-  Expect.isTrue(map is Map<int, String>);
-
-  // Make sure it is not just Map<dynamic, dynamic>.
-  Expect.isFalse(map is Map<String, dynamic>);
-  Expect.isFalse(map is Map<dynamic, int>);
-
-  Expect.equals(3, map.length);
-  Expect.equals(3, map.keys.length);
-  Expect.equals(3, map.values.length);
-
-  Expect.equals("one", map[1]);
-  Expect.equals("two", map[2]);
-  Expect.equals("three", map[3]);
-}
diff --git a/tests/corelib_2/map_from_test.dart b/tests/corelib_2/map_from_test.dart
deleted file mode 100644
index ca4225718dc..00000000000
--- a/tests/corelib_2/map_from_test.dart
+++ /dev/null
@@ -1,99 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library map.from.test;
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-
-main() {
-  testWithConstMap();
-  testWithNonConstMap();
-  testWithHashMap();
-  testWithLinkedMap();
-}
-
-testWithConstMap() {
-  var map = const {'b': 42, 'a': 43};
-  var otherMap = new Map.from(map);
-  Expect.isTrue(otherMap is Map);
-  Expect.isTrue(otherMap is LinkedHashMap);
-
-  Expect.equals(2, otherMap.length);
-  Expect.equals(2, otherMap.keys.length);
-  Expect.equals(2, otherMap.values.length);
-
-  var count = (map) {
-    int cnt = 0;
-    map.forEach((a, b) {
-      cnt += b;
-    });
-    return cnt;
-  };
-
-  Expect.equals(42 + 43, count(map));
-  Expect.equals(count(map), count(otherMap));
-}
-
-testWithNonConstMap() {
-  var map = {'b': 42, 'a': 43};
-  var otherMap = new Map.from(map);
-  Expect.isTrue(otherMap is Map);
-  Expect.isTrue(otherMap is LinkedHashMap);
-
-  Expect.equals(2, otherMap.length);
-  Expect.equals(2, otherMap.keys.length);
-  Expect.equals(2, otherMap.values.length);
-
-  int count(map) {
-    int count = 0;
-    map.forEach((a, b) {
-      count += b;
-    });
-    return count;
-  }
-
-  ;
-
-  Expect.equals(42 + 43, count(map));
-  Expect.equals(count(map), count(otherMap));
-
-  // Test that adding to the original map does not change otherMap.
-  map['c'] = 44;
-  Expect.equals(3, map.length);
-  Expect.equals(2, otherMap.length);
-  Expect.equals(2, otherMap.keys.length);
-  Expect.equals(2, otherMap.values.length);
-
-  // Test that adding to otherMap does not change the original map.
-  otherMap['c'] = 44;
-  Expect.equals(3, map.length);
-  Expect.equals(3, otherMap.length);
-  Expect.equals(3, otherMap.keys.length);
-  Expect.equals(3, otherMap.values.length);
-}
-
-testWithHashMap() {
-  var map = const {'b': 1, 'a': 2, 'c': 3};
-  var otherMap = new HashMap.from(map);
-  Expect.isTrue(otherMap is Map);
-  Expect.isTrue(otherMap is HashMap);
-  var i = 1;
-  for (var val in map.values) {
-    Expect.equals(i++, val);
-  }
-}
-
-testWithLinkedMap() {
-  var map = const {'b': 1, 'a': 2, 'c': 3};
-  var otherMap = new LinkedHashMap.from(map);
-  Expect.isTrue(otherMap is Map);
-  Expect.isTrue(otherMap is LinkedHashMap);
-  var i = 1;
-  for (var val in map.values) {
-    Expect.equals(i++, val);
-  }
-}
diff --git a/tests/corelib_2/map_index_test.dart b/tests/corelib_2/map_index_test.dart
deleted file mode 100644
index 1bfe7da5315..00000000000
--- a/tests/corelib_2/map_index_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  const A();
-}
-
-class B extends A {
-  const B();
-}
-
-main() {
-  var map1 = new Map<B, B>();
-  map1[const B()] = const B();
-  var map2 = new Map<B, B>();
-  var list = <B>[const B()];
-
-  var maps = [map1, map2];
-  for (var map in maps) {
-    // Test that the map accepts a key is not of the same type:
-    //   Map<B, ?>[A]
-    Expect.isNull(map[new A()]);
-  }
-}
diff --git a/tests/corelib_2/map_keys2_test.dart b/tests/corelib_2/map_keys2_test.dart
deleted file mode 100644
index b813d7df337..00000000000
--- a/tests/corelib_2/map_keys2_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  var map1 = {"foo": 42, "bar": 499};
-  var map2 = {};
-  var map3 = const {"foo": 42, "bar": 499};
-  var map4 = const {};
-  var map5 = new Map<String, int>();
-  map5["foo"] = 43;
-  map5["bar"] = 500;
-  var map6 = new Map<String, bool>();
-
-  Expect.isTrue(map1.keys is Iterable<String>);
-  Expect.isFalse(map1.keys is Iterable<bool>);
-
-  Expect.isFalse(map2.keys is Iterable<String>);
-  Expect.isFalse(map2.keys is Iterable<bool>);
-
-  Expect.isTrue(map3.keys is Iterable<String>);
-  Expect.isFalse(map3.keys is Iterable<bool>);
-
-  Expect.isFalse(map4.keys is Iterable<String>);
-  Expect.isFalse(map4.keys is Iterable<bool>);
-
-  Expect.isTrue(map5.keys is Iterable<String>);
-  Expect.isFalse(map5.keys is Iterable<bool>);
-
-  Expect.isTrue(map6.keys is Iterable<String>);
-  Expect.isFalse(map6.keys is Iterable<bool>);
-}
diff --git a/tests/corelib_2/map_keys_test.dart b/tests/corelib_2/map_keys_test.dart
deleted file mode 100644
index 8b029b6571b..00000000000
--- a/tests/corelib_2/map_keys_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  var map1 = {"foo": 42, "bar": 499};
-  var map2 = {};
-  var map3 = const {"foo": 42, "bar": 499};
-  var map4 = const {};
-  var map5 = new Map<String, int>();
-  map5["foo"] = 43;
-  map5["bar"] = 500;
-  var map6 = new Map<String, bool>();
-
-  Expect.isTrue(map1.keys is Iterable);
-  Expect.isFalse(map1.keys is List);
-  Expect.equals(2, map1.keys.length);
-  Expect.equals("foo", map1.keys.first);
-  Expect.equals("bar", map1.keys.last);
-
-  Expect.isTrue(map2.keys is Iterable);
-  Expect.isFalse(map2.keys is List);
-  Expect.equals(0, map2.keys.length);
-
-  Expect.isTrue(map3.keys is Iterable);
-  Expect.isFalse(map3.keys is List);
-  Expect.equals(2, map3.keys.length);
-  Expect.equals("foo", map3.keys.first);
-  Expect.equals("bar", map3.keys.last);
-
-  Expect.isTrue(map4.keys is Iterable);
-  Expect.isFalse(map4.keys is List);
-  Expect.equals(0, map4.keys.length);
-
-  Expect.isTrue(map5.keys is Iterable);
-  Expect.isFalse(map5.keys is List);
-  Expect.equals(2, map5.keys.length);
-  Expect.isTrue(map5.keys.first == "foo" || map5.keys.first == "bar");
-  Expect.isTrue(map5.keys.last == "foo" || map5.keys.last == "bar");
-  Expect.notEquals(map5.keys.first, map5.keys.last);
-
-  Expect.isTrue(map6.keys is Iterable);
-  Expect.isFalse(map6.keys is List);
-  Expect.equals(0, map6.keys.length);
-}
diff --git a/tests/corelib_2/map_of_test.dart b/tests/corelib_2/map_of_test.dart
deleted file mode 100644
index a3ee874a073..00000000000
--- a/tests/corelib_2/map_of_test.dart
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library map.from.test;
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-
-main() {
-  for (Map<num, num> map in [
-    <num, num>{},
-    const <num, num>{},
-    new HashMap<num, num>(),
-    new LinkedHashMap<num, num>(),
-    new SplayTreeMap<num, num>(),
-    <num, num>{1: 11, 2: 12, 4: 14},
-    const <num, num>{1: 11, 2: 12, 4: 14},
-    new Map<num, num>()
-      ..[1] = 11
-      ..[2] = 12
-      ..[3] = 13,
-    new HashMap<num, num>()
-      ..[1] = 11
-      ..[2] = 12
-      ..[3] = 13,
-    new LinkedHashMap<num, num>()
-      ..[1] = 11
-      ..[2] = 12
-      ..[3] = 13,
-    new SplayTreeMap<num, num>()
-      ..[1] = 11
-      ..[2] = 12
-      ..[3] = 13,
-  ]) {
-    expectThrows(void operation()) {
-      Expect.throwsTypeError(operation);
-    }
-
-    var sourceType = map.runtimeType.toString();
-    check(sourceType, map, new Map<Object, Object>.of(map));
-    check(sourceType, map, new Map<num, num>.of(map));
-    expectThrows(() => new Map<int, int>.of(map));
-    check(sourceType, map, new HashMap<Object, Object>.of(map));
-    check(sourceType, map, new HashMap<num, num>.of(map));
-    expectThrows(() => new HashMap<int, int>.of(map));
-    check(sourceType, map, new LinkedHashMap<Object, Object>.of(map));
-    check(sourceType, map, new LinkedHashMap<num, num>.of(map));
-    expectThrows(() => new LinkedHashMap<int, int>.of(map));
-    check(sourceType, map, new SplayTreeMap<Object, Object>.of(map));
-    check(sourceType, map, new SplayTreeMap<num, num>.of(map));
-    expectThrows(() => new SplayTreeMap<int, int>.of(map));
-  }
-}
-
-check(String sourceType, Map<num, num> expect, Map actual) {
-  var targetType = actual.runtimeType.toString();
-  var name = "$sourceType->$targetType";
-  Expect.equals(expect.length, actual.length, "$name.length");
-  for (var key in expect.keys) {
-    Expect.isTrue(actual.containsKey(key), "$name?[$key]");
-    Expect.equals(expect[key], actual[key], "$name[$key]");
-  }
-}
diff --git a/tests/corelib_2/map_remove_test.dart b/tests/corelib_2/map_remove_test.dart
deleted file mode 100644
index bfec31b09ca..00000000000
--- a/tests/corelib_2/map_remove_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  const A();
-}
-
-class B extends A {
-  const B();
-}
-
-main() {
-  var map1 = new Map<B, B>();
-  map1[const B()] = const B();
-  var map2 = new Map<B, B>();
-  var list = <B>[const B()];
-
-  var maps = [map1, map2];
-  for (var map in maps) {
-    // Test that the map accepts a key is not of the same type:
-    //   Map<B, ?>.remove(A)
-    Expect.isNull(map.remove(new A()));
-  }
-}
diff --git a/tests/corelib_2/map_set_undefined_test.dart b/tests/corelib_2/map_set_undefined_test.dart
deleted file mode 100644
index e56b62186a3..00000000000
--- a/tests/corelib_2/map_set_undefined_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:collection';
-import 'package:expect/expect.dart';
-
-main() {
-  // Regression test for https://github.com/dart-lang/sdk/issues/36052.
-  // JS compilers shouldn't produce `undefined` when a Map/Set key is not found.
-  testMap({});
-  testMap(Map.identity());
-  testMap(LinkedHashMap(
-      equals: (x, y) => x == y,
-      hashCode: (x) => x.hashCode,
-      isValidKey: (_) => true));
-
-  testSet(Set());
-  testSet(Set.identity());
-  testSet(LinkedHashSet(
-      equals: (x, y) => x == y,
-      hashCode: (x) => x.hashCode,
-      isValidKey: (_) => true));
-}
-
-testMap(Map<Object, Object> map) {
-  var t = map.runtimeType.toString();
-  var s = ' (length ${map.length})';
-  checkUndefined('$t.[]$s', map['hi']);
-  checkUndefined('$t.putIfAbsent$s', map.putIfAbsent('hi', () {}));
-  checkUndefined('$t.remove$s', map.remove('hi'));
-  if (map.isEmpty) {
-    map['hello'] = 'there';
-    testMap(map);
-  }
-}
-
-testSet(Set<Object> set) {
-  var t = set.runtimeType.toString();
-  var s = ' (length ${set.length})';
-  checkUndefined('$t.lookup$s', set.lookup('hi'));
-  if (set.isEmpty) {
-    set.add('hello');
-    testSet(set);
-  }
-}
-
-/// Fails if [x] incorrectly uses the default argument instead of being `null`
-/// (i.e. because `x` is undefined).
-checkUndefined(String method, [Object x = 'error']) {
-  // TODO(jmesserly): this check is specific to implementation details of DDC's
-  // current calling conventions. These conventions may change.
-  // Ideally we'd have an `undefined` constant in "package:js" and use that
-  // here instead.
-  Expect.isNull(x,
-      'error in $method: result treated as missing argument (JS undefined?)');
-}
diff --git a/tests/corelib_2/map_test.dart b/tests/corelib_2/map_test.dart
deleted file mode 100644
index 65ae18f0845..00000000000
--- a/tests/corelib_2/map_test.dart
+++ /dev/null
@@ -1,1049 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library map_test;
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-import 'dart:convert' show json;
-
-Map<String, dynamic> newJsonMap() => json.decode('{}');
-Map<String, dynamic> newJsonMapCustomReviver() =>
-    json.decode('{}', reviver: (key, value) => value);
-
-void main() {
-  test(new HashMap());
-  test(new LinkedHashMap());
-  test(new SplayTreeMap());
-  test(new SplayTreeMap(Comparable.compare));
-  test(new MapView(new HashMap()));
-  test(new MapView(new SplayTreeMap()));
-  test(new MapBaseMap());
-  test(new MapMixinMap());
-  test(newJsonMap());
-  test(newJsonMapCustomReviver());
-  testLinkedHashMap();
-  testMapLiteral();
-  testNullValue();
-  testTypes();
-  testUnmodifiableMaps();
-
-  testWeirdStringKeys(new Map());
-  testWeirdStringKeys(new Map<String, String>());
-  testWeirdStringKeys(new HashMap());
-  testWeirdStringKeys(new HashMap<String, String>());
-  testWeirdStringKeys(new LinkedHashMap());
-  testWeirdStringKeys(new LinkedHashMap<String, String>());
-  testWeirdStringKeys(new SplayTreeMap());
-  testWeirdStringKeys(new SplayTreeMap<String, String>());
-  testWeirdStringKeys(new MapBaseMap<String, String>());
-  testWeirdStringKeys(new MapMixinMap<String, String>());
-  testWeirdStringKeys(newJsonMap());
-  testWeirdStringKeys(newJsonMapCustomReviver());
-
-  testNumericKeys(new Map());
-  testNumericKeys(new Map<num, String>());
-  testNumericKeys(new HashMap());
-  testNumericKeys(new HashMap<num, String>());
-  testNumericKeys(new HashMap.identity());
-  testNumericKeys(new HashMap<num, String>.identity());
-  testNumericKeys(new LinkedHashMap());
-  testNumericKeys(new LinkedHashMap<num, String>());
-  testNumericKeys(new LinkedHashMap.identity());
-  testNumericKeys(new LinkedHashMap<num, String>.identity());
-  testNumericKeys(new MapBaseMap<num, String>());
-  testNumericKeys(new MapMixinMap<num, String>());
-
-  testNaNKeys(new Map());
-  testNaNKeys(new Map<num, String>());
-  testNaNKeys(new HashMap());
-  testNaNKeys(new HashMap<num, String>());
-  testNaNKeys(new LinkedHashMap());
-  testNaNKeys(new LinkedHashMap<num, String>());
-  testNaNKeys(new MapBaseMap<num, String>());
-  testNaNKeys(new MapMixinMap<num, String>());
-  // Identity maps fail the NaN-keys tests because the test assumes that
-  // NaN is not equal to NaN.
-
-  testIdentityMap(new Map.identity());
-  testIdentityMap(new HashMap.identity());
-  testIdentityMap(new LinkedHashMap.identity());
-  testIdentityMap(new HashMap(equals: identical, hashCode: identityHashCode));
-  testIdentityMap(
-      new LinkedHashMap(equals: identical, hashCode: identityHashCode));
-  testIdentityMap(new HashMap(
-      equals: (x, y) => identical(x, y), hashCode: (x) => identityHashCode(x)));
-  testIdentityMap(new LinkedHashMap(
-      equals: (x, y) => identical(x, y), hashCode: (x) => identityHashCode(x)));
-
-  testCustomMap(new HashMap(
-      equals: myEquals,
-      hashCode: myHashCode,
-      isValidKey: (v) => v is Customer));
-  testCustomMap(new LinkedHashMap(
-      equals: myEquals,
-      hashCode: myHashCode,
-      isValidKey: (v) => v is Customer));
-  testCustomMap(
-      new HashMap<Customer, dynamic>(equals: myEquals, hashCode: myHashCode));
-
-  testCustomMap(new LinkedHashMap<Customer, dynamic>(
-      equals: myEquals, hashCode: myHashCode));
-
-  testIterationOrder(new LinkedHashMap());
-  testIterationOrder(new LinkedHashMap.identity());
-  testIterationOrder(newJsonMap());
-  testIterationOrder(newJsonMapCustomReviver());
-
-  testOtherKeys(new SplayTreeMap<int, int>());
-  testOtherKeys(
-      new SplayTreeMap<int, int>((int a, int b) => a - b, (v) => v is int));
-  testOtherKeys(new SplayTreeMap((int a, int b) => a - b, (v) => v is int));
-  testOtherKeys(new HashMap<int, int>());
-  testOtherKeys(new HashMap<int, int>.identity());
-  testOtherKeys(new HashMap<int, int>(
-      hashCode: (v) => v.hashCode, isValidKey: (v) => v is int));
-  testOtherKeys(new HashMap(
-      equals: (int x, int y) => x == y,
-      hashCode: (int v) => v.hashCode,
-      isValidKey: (v) => v is int));
-  testOtherKeys(new LinkedHashMap<int, int>());
-  testOtherKeys(new LinkedHashMap<int, int>.identity());
-  testOtherKeys(new LinkedHashMap<int, int>(
-      hashCode: (v) => v.hashCode, isValidKey: (v) => v is int));
-  testOtherKeys(new LinkedHashMap(
-      equals: (int x, int y) => x == y,
-      hashCode: (int v) => v.hashCode,
-      isValidKey: (v) => v is int));
-  testOtherKeys(new MapBaseMap<int, int>());
-  testOtherKeys(new MapMixinMap<int, int>());
-
-  testUnmodifiableMap(const {1: 37});
-  testUnmodifiableMap(new UnmodifiableMapView({1: 37}));
-  testUnmodifiableMap(new UnmodifiableMapBaseMap([1, 37]));
-
-  testTypeAnnotations(new HashMap());
-  testTypeAnnotations(new LinkedHashMap());
-  testTypeAnnotations(new HashMap(equals: identical));
-  testTypeAnnotations(new LinkedHashMap(equals: identical));
-  testTypeAnnotations(new HashMap(
-      equals: (int a, int b) => a == b,
-      hashCode: (int a) => a.hashCode,
-      isValidKey: (a) => a is int));
-  testTypeAnnotations(new LinkedHashMap(
-      equals: (int a, int b) => a == b,
-      hashCode: (int a) => a.hashCode,
-      isValidKey: (a) => a is int));
-
-  testFrom();
-}
-
-void test<K, V>(Map<K, V> map) {
-  testDeletedElement(map);
-  if (map is Map<int, dynamic>) {
-    testMap(map, 1, 2, 3, 4, 5, 6, 7, 8);
-  } else {
-    map.clear();
-    testMap(map, "value1", "value2", "value3", "value4", "value5", "value6",
-        "value7", "value8");
-  }
-}
-
-void testLinkedHashMap() {
-  LinkedHashMap map = new LinkedHashMap();
-  Expect.isFalse(map.containsKey(1));
-  map[1] = 1;
-  map[1] = 2;
-  testLength(1, map);
-}
-
-void testMap<K, V>(
-    Map<K, V> typedMap, key1, key2, key3, key4, key5, key6, key7, key8) {
-  Map map = typedMap;
-  int value1 = 10;
-  int value2 = 20;
-  int value3 = 30;
-  int value4 = 40;
-  int value5 = 50;
-  int value6 = 60;
-  int value7 = 70;
-  int value8 = 80;
-
-  testLength(0, map);
-
-  map[key1] = value1;
-  Expect.equals(value1, map[key1]);
-  map[key1] = value2;
-  Expect.isFalse(map.containsKey(key2));
-  testLength(1, map);
-
-  map[key1] = value1;
-  Expect.equals(value1, map[key1]);
-  // Add enough entries to make sure the table grows.
-  map[key2] = value2;
-  Expect.equals(value2, map[key2]);
-  testLength(2, map);
-  map[key3] = value3;
-  Expect.equals(value2, map[key2]);
-  Expect.equals(value3, map[key3]);
-  map[key4] = value4;
-  Expect.equals(value3, map[key3]);
-  Expect.equals(value4, map[key4]);
-  map[key5] = value5;
-  Expect.equals(value4, map[key4]);
-  Expect.equals(value5, map[key5]);
-  map[key6] = value6;
-  Expect.equals(value5, map[key5]);
-  Expect.equals(value6, map[key6]);
-  map[key7] = value7;
-  Expect.equals(value6, map[key6]);
-  Expect.equals(value7, map[key7]);
-  map[key8] = value8;
-  Expect.equals(value1, map[key1]);
-  Expect.equals(value2, map[key2]);
-  Expect.equals(value3, map[key3]);
-  Expect.equals(value4, map[key4]);
-  Expect.equals(value5, map[key5]);
-  Expect.equals(value6, map[key6]);
-  Expect.equals(value7, map[key7]);
-  Expect.equals(value8, map[key8]);
-  testLength(8, map);
-
-  map.remove(key4);
-  Expect.isFalse(map.containsKey(key4));
-  testLength(7, map);
-
-  // Test clearing the table.
-  map.clear();
-  testLength(0, map);
-  Expect.isFalse(map.containsKey(key1));
-  Expect.isFalse(map.containsKey(key2));
-  Expect.isFalse(map.containsKey(key3));
-  Expect.isFalse(map.containsKey(key4));
-  Expect.isFalse(map.containsKey(key5));
-  Expect.isFalse(map.containsKey(key6));
-  Expect.isFalse(map.containsKey(key7));
-  Expect.isFalse(map.containsKey(key8));
-
-  // Test adding and removing again.
-  map[key1] = value1;
-  Expect.equals(value1, map[key1]);
-  testLength(1, map);
-  map[key2] = value2;
-  Expect.equals(value2, map[key2]);
-  testLength(2, map);
-  map[key3] = value3;
-  Expect.equals(value3, map[key3]);
-  map.remove(key3);
-  testLength(2, map);
-  map[key4] = value4;
-  Expect.equals(value4, map[key4]);
-  map.remove(key4);
-  testLength(2, map);
-  map[key5] = value5;
-  Expect.equals(value5, map[key5]);
-  map.remove(key5);
-  testLength(2, map);
-  map[key6] = value6;
-  Expect.equals(value6, map[key6]);
-  map.remove(key6);
-  testLength(2, map);
-  map[key7] = value7;
-  Expect.equals(value7, map[key7]);
-  map.remove(key7);
-  testLength(2, map);
-  map[key8] = value8;
-  Expect.equals(value8, map[key8]);
-  map.remove(key8);
-  testLength(2, map);
-
-  Expect.isTrue(map.containsKey(key1));
-  Expect.isTrue(map.containsValue(value1));
-
-  // Test Map.forEach.
-  Map otherMap = new Map<K, V>();
-  void testForEachMap(key, value) {
-    otherMap[key] = value;
-  }
-
-  map.forEach(testForEachMap);
-  Expect.isTrue(otherMap.containsKey(key1));
-  Expect.isTrue(otherMap.containsKey(key2));
-  Expect.isTrue(otherMap.containsValue(value1));
-  Expect.isTrue(otherMap.containsValue(value2));
-  Expect.equals(2, otherMap.length);
-
-  otherMap.clear();
-  Expect.equals(0, otherMap.length);
-
-  // Test Collection.keys.
-  void testForEachKey(key) {
-    otherMap[key] = null;
-  }
-
-  Iterable keys = map.keys;
-  keys.forEach(testForEachKey);
-  Expect.isTrue(otherMap.containsKey(key1));
-  Expect.isTrue(otherMap.containsKey(key2));
-  Expect.isFalse(otherMap.containsKey(value1));
-  Expect.isFalse(otherMap.containsKey(value2));
-
-  Expect.isTrue(otherMap.containsValue(null));
-  Expect.isFalse(otherMap.containsValue(value1));
-  Expect.isFalse(otherMap.containsValue(value2));
-  Expect.equals(2, otherMap.length);
-  otherMap.clear();
-  Expect.equals(0, otherMap.length);
-
-  // Test Collection.values.
-  void testForEachValue(value) {
-    if (value == value1) {
-      otherMap[key1] = value;
-    } else if (value == value2) {
-      otherMap[key2] = value;
-    } else {
-      otherMap[key3] = null;
-    }
-  }
-
-  Iterable values = map.values;
-  values.forEach(testForEachValue);
-  Expect.isTrue(otherMap.containsKey(key1));
-  Expect.isTrue(otherMap.containsKey(key2));
-  Expect.isFalse(otherMap.containsKey(value1));
-  Expect.isFalse(otherMap.containsKey(value2));
-
-  Expect.isTrue(otherMap.containsValue(value1));
-  Expect.isTrue(otherMap.containsValue(value2));
-  Expect.isFalse(otherMap.containsValue(value3));
-  Expect.isFalse(otherMap.containsValue(key1));
-  Expect.isFalse(otherMap.containsValue(null));
-  Expect.equals(2, otherMap.length);
-  otherMap.clear();
-  Expect.equals(0, otherMap.length);
-
-  // Test Map.putIfAbsent.
-  map.clear();
-  Expect.isFalse(map.containsKey(key1));
-  map.putIfAbsent(key1, () => 10);
-  Expect.isTrue(map.containsKey(key1));
-  Expect.equals(10, map[key1]);
-  Expect.equals(10, map.putIfAbsent(key1, () => 11));
-
-  // Test Map.addAll.
-  map.clear();
-  otherMap.clear();
-  otherMap['99'] = 1;
-  otherMap['50'] = 50;
-  otherMap['1'] = 99;
-  map.addAll(otherMap);
-  Expect.equals(3, map.length);
-  Expect.equals(1, map['99']);
-  Expect.equals(50, map['50']);
-  Expect.equals(99, map['1']);
-  otherMap['50'] = 42;
-  map.addAll(new HashMap<K, V>.from(otherMap));
-  Expect.equals(3, map.length);
-  Expect.equals(1, map['99']);
-  Expect.equals(42, map['50']);
-  Expect.equals(99, map['1']);
-  otherMap['99'] = 7;
-  map.addAll(new SplayTreeMap<K, V>.from(otherMap));
-  Expect.equals(3, map.length);
-  Expect.equals(7, map['99']);
-  Expect.equals(42, map['50']);
-  Expect.equals(99, map['1']);
-  otherMap.remove('99');
-  map['99'] = 0;
-  map.addAll(otherMap);
-  Expect.equals(3, map.length);
-  Expect.equals(0, map['99']);
-  Expect.equals(42, map['50']);
-  Expect.equals(99, map['1']);
-  map.clear();
-  otherMap.clear();
-  map.addAll(otherMap);
-  Expect.equals(0, map.length);
-}
-
-void testDeletedElement(Map map) {
-  map.clear();
-  for (int i = 0; i < 100; i++) {
-    map['1'] = 2;
-    testLength(1, map);
-    map.remove('1');
-    testLength(0, map);
-  }
-  testLength(0, map);
-}
-
-void testMapLiteral() {
-  Map m = {"a": 1, "b": 2, "c": 3};
-  Expect.equals(3, m.length);
-  int sum = 0;
-  m.forEach((a, b) {
-    sum += b;
-  });
-  Expect.equals(6, sum);
-
-  List values = m.keys.toList();
-  Expect.equals(3, values.length);
-  String first = values[0];
-  String second = values[1];
-  String third = values[2];
-  String all = "${first}${second}${third}";
-  Expect.equals(3, all.length);
-  Expect.isTrue(all.contains("a", 0));
-  Expect.isTrue(all.contains("b", 0));
-  Expect.isTrue(all.contains("c", 0));
-}
-
-void testNullValue() {
-  Map m = {"a": 1, "b": null, "c": 3};
-
-  Expect.equals(null, m["b"]);
-  Expect.isTrue(m.containsKey("b"));
-  Expect.equals(3, m.length);
-
-  m["a"] = null;
-  m["c"] = null;
-  Expect.equals(null, m["a"]);
-  Expect.isTrue(m.containsKey("a"));
-  Expect.equals(null, m["c"]);
-  Expect.isTrue(m.containsKey("c"));
-  Expect.equals(3, m.length);
-
-  m.remove("a");
-  Expect.equals(2, m.length);
-  Expect.equals(null, m["a"]);
-  Expect.isFalse(m.containsKey("a"));
-}
-
-void testTypes() {
-  testMap(Map<num, String> map) {
-    Expect.isTrue(map is Map<num, String>);
-    Expect.isTrue(map is! Map<String, dynamic>);
-    Expect.isTrue(map is! Map<dynamic, int>);
-
-    // Use with properly typed keys and values.
-    map[42] = "text1";
-    map[43] = "text2";
-    map[42] = "text3";
-    Expect.equals("text3", map.remove(42));
-    Expect.equals(null, map[42]);
-    map[42] = "text4";
-
-    // Ensure that "containsKey", "containsValue" and "remove"
-    // accepts any object.
-    for (var object in [true, null, new Object()]) {
-      Expect.isFalse(map.containsKey(object));
-      Expect.isFalse(map.containsValue(object));
-      Expect.isNull(map.remove(object));
-      Expect.isNull(map[object]);
-    }
-  }
-
-  testMap(new HashMap<int, String>());
-  testMap(new LinkedHashMap<int, String>());
-  testMap(new SplayTreeMap<int, String>());
-  testMap(new SplayTreeMap<int, String>(Comparable.compare));
-  testMap(new SplayTreeMap<int, String>((int a, int b) => a.compareTo(b)));
-  testMap(new HashMap<num, String>());
-  testMap(new LinkedHashMap<num, String>());
-  testMap(new SplayTreeMap<num, String>());
-  testMap(new SplayTreeMap<num, String>(Comparable.compare));
-  testMap(new SplayTreeMap<num, String>((num a, num b) => a.compareTo(b)));
-}
-
-void testWeirdStringKeys(Map map) {
-  // Test weird keys.
-  var weirdKeys = const [
-    'hasOwnProperty',
-    'constructor',
-    'toLocaleString',
-    'propertyIsEnumerable',
-    '__defineGetter__',
-    '__defineSetter__',
-    '__lookupGetter__',
-    '__lookupSetter__',
-    'isPrototypeOf',
-    'toString',
-    'valueOf',
-    '__proto__',
-    '__count__',
-    '__parent__',
-    ''
-  ];
-  Expect.isTrue(map.isEmpty);
-  for (var key in weirdKeys) {
-    Expect.isFalse(map.containsKey(key));
-    Expect.equals(null, map[key]);
-    var value = 'value:$key';
-    map[key] = value;
-    Expect.isTrue(map.containsKey(key));
-    Expect.equals(value, map[key]);
-    Expect.equals(value, map.remove(key));
-    Expect.isFalse(map.containsKey(key));
-    Expect.equals(null, map[key]);
-  }
-  Expect.isTrue(map.isEmpty);
-}
-
-void testNumericKeys(Map map) {
-  var numericKeys = const [
-    double.infinity,
-    double.negativeInfinity,
-    0,
-    0.0,
-    -0.0
-  ];
-
-  Expect.isTrue(map.isEmpty);
-  for (var key in numericKeys) {
-    Expect.isFalse(map.containsKey(key));
-    Expect.equals(null, map[key]);
-    var value = 'value:$key';
-    map[key] = value;
-    Expect.isTrue(map.containsKey(key));
-    Expect.equals(value, map[key]);
-    Expect.equals(value, map.remove(key));
-    Expect.isFalse(map.containsKey(key));
-    Expect.equals(null, map[key]);
-  }
-  Expect.isTrue(map.isEmpty);
-}
-
-void testNaNKeys(Map map) {
-  Object nan = double.nan;
-  // Skip this test on platforms that use native-JS NaN semantics for speed.
-  if (!identical(nan, nan)) return;
-
-  Expect.isTrue(map.isEmpty);
-  // Test NaN.
-  Expect.isFalse(map.containsKey(nan));
-  Expect.equals(null, map[nan]);
-
-  map[nan] = 'value:0';
-  Expect.isFalse(map.containsKey(nan));
-  Expect.equals(null, map[nan]);
-  testLength(1, map);
-
-  map[nan] = 'value:1';
-  Expect.isFalse(map.containsKey(nan));
-  Expect.equals(null, map[nan]);
-  testLength(2, map);
-
-  Expect.equals(null, map.remove(nan));
-  testLength(2, map);
-
-  var count = 0;
-  map.forEach((key, value) {
-    if (key.isNaN) count++;
-  });
-  Expect.equals(2, count);
-
-  map.clear();
-  Expect.isTrue(map.isEmpty);
-}
-
-void testLength(int length, Map map) {
-  Expect.equals(length, map.length);
-  Expect.equals(length, map.keys.length);
-  Expect.equals(length, map.values.length);
-  // Check being-empty.
-  var ifEmpty = (length == 0) ? Expect.isTrue : Expect.isFalse;
-  var ifNotEmpty = (length != 0) ? Expect.isTrue : Expect.isFalse;
-  ifEmpty(map.isEmpty);
-  ifNotEmpty(map.isNotEmpty);
-  ifEmpty(map.keys.isEmpty);
-  ifNotEmpty(map.keys.isNotEmpty);
-  ifEmpty(map.values.isEmpty);
-  ifNotEmpty(map.values.isNotEmpty);
-  // Test key/value iterators match their isEmpty/isNotEmpty.
-  ifNotEmpty(map.keys.iterator.moveNext());
-  ifNotEmpty(map.values.iterator.moveNext());
-  if (length == 0) {
-    for (var k in map.keys) Expect.fail("contains key when iterating: $k");
-    for (var v in map.values) Expect.fail("contains values when iterating: $v");
-  }
-}
-
-testIdentityMap<K, V>(Map<K, V> typedMap) {
-  Map map = typedMap;
-  Expect.isTrue(map.isEmpty);
-
-  var nan = double.nan;
-  // TODO(11551): Remove guard when dart2js makes identical(NaN, NaN) true.
-  if (identical(nan, nan)) {
-    map[nan] = 42;
-    testLength(1, map);
-    Expect.isTrue(map.containsKey(nan));
-    Expect.equals(42, map[nan]);
-    map[nan] = 37;
-    testLength(1, map);
-    Expect.equals(37, map[nan]);
-    Expect.equals(37, map.remove(nan));
-    testLength(0, map);
-  }
-
-  Vampire v1 = const Vampire(1);
-  Vampire v2 = const Vampire(2);
-  Expect.isFalse(v1 == v1);
-  Expect.isFalse(v2 == v2);
-  Expect.isTrue(v2 == v1); // Snob!
-
-  map[v1] = 1;
-  map[v2] = 2;
-  testLength(2, map);
-
-  Expect.isTrue(map.containsKey(v1));
-  Expect.isTrue(map.containsKey(v2));
-
-  Expect.equals(1, map[v1]);
-  Expect.equals(2, map[v2]);
-
-  Expect.equals(1, map.remove(v1));
-  testLength(1, map);
-  Expect.isFalse(map.containsKey(v1));
-  Expect.isTrue(map.containsKey(v2));
-
-  Expect.isNull(map.remove(v1));
-  Expect.equals(2, map.remove(v2));
-  testLength(0, map);
-
-  var eq01 = new Equalizer(0);
-  var eq02 = new Equalizer(0);
-  var eq11 = new Equalizer(1);
-  var eq12 = new Equalizer(1);
-  // Sanity.
-  Expect.equals(eq01, eq02);
-  Expect.equals(eq02, eq01);
-  Expect.equals(eq11, eq12);
-  Expect.equals(eq12, eq11);
-  Expect.notEquals(eq01, eq11);
-  Expect.notEquals(eq01, eq12);
-  Expect.notEquals(eq02, eq11);
-  Expect.notEquals(eq02, eq12);
-  Expect.notEquals(eq11, eq01);
-  Expect.notEquals(eq11, eq02);
-  Expect.notEquals(eq12, eq01);
-  Expect.notEquals(eq12, eq02);
-
-  map[eq01] = 0;
-  map[eq02] = 1;
-  map[eq11] = 2;
-  map[eq12] = 3;
-  testLength(4, map);
-
-  Expect.equals(0, map[eq01]);
-  Expect.equals(1, map[eq02]);
-  Expect.equals(2, map[eq11]);
-  Expect.equals(3, map[eq12]);
-
-  Expect.isTrue(map.containsKey(eq01));
-  Expect.isTrue(map.containsKey(eq02));
-  Expect.isTrue(map.containsKey(eq11));
-  Expect.isTrue(map.containsKey(eq12));
-
-  Expect.equals(1, map.remove(eq02));
-  Expect.equals(3, map.remove(eq12));
-  testLength(2, map);
-  Expect.isTrue(map.containsKey(eq01));
-  Expect.isFalse(map.containsKey(eq02));
-  Expect.isTrue(map.containsKey(eq11));
-  Expect.isFalse(map.containsKey(eq12));
-
-  Expect.equals(0, map[eq01]);
-  Expect.equals(null, map[eq02]);
-  Expect.equals(2, map[eq11]);
-  Expect.equals(null, map[eq12]);
-
-  Expect.equals(0, map.remove(eq01));
-  Expect.equals(2, map.remove(eq11));
-  testLength(0, map);
-
-  map[eq01] = 0;
-  map[eq02] = 1;
-  map[eq11] = 2;
-  map[eq12] = 3;
-  testLength(4, map);
-
-  // Transfer to equality-based map will collapse elements.
-  Map eqMap = new HashMap<K, V>();
-  eqMap.addAll(map);
-  testLength(2, eqMap);
-  Expect.isTrue(eqMap.containsKey(eq01));
-  Expect.isTrue(eqMap.containsKey(eq02));
-  Expect.isTrue(eqMap.containsKey(eq11));
-  Expect.isTrue(eqMap.containsKey(eq12));
-
-  // Changing objects will not affect identity map.
-  map.clear();
-  var m1 = new Mutable(1);
-  var m2 = new Mutable(2);
-  var m3 = new Mutable(3);
-  map[m1] = 1;
-  map[m2] = 2;
-  map[m3] = 3;
-  Expect.equals(3, map.length);
-  Expect.isTrue(map.containsKey(m1));
-  Expect.isTrue(map.containsKey(m2));
-  Expect.isTrue(map.containsKey(m3));
-  Expect.notEquals(m1, m3);
-  m3.id = 1;
-  Expect.equals(m1, m3);
-  // Even if keys are equal, they are still not identical.
-  // Even if hashcode of m3 changed, it can still be found.
-  Expect.equals(1, map[m1]);
-  Expect.equals(3, map[m3]);
-}
-
-/** Class of objects that are equal if they hold the same id. */
-class Equalizer {
-  int id;
-  Equalizer(this.id);
-  int get hashCode => id;
-  bool operator ==(Object other) => other is Equalizer && id == other.id;
-}
-
-/**
- * Objects that are not reflexive.
- *
- * They think they are better than their equals.
- */
-class Vampire {
-  final int generation;
-  const Vampire(this.generation);
-
-  int get hashCode => generation;
-
-  // The double-fang operator falsely claims that a vampire is equal to
-  // any of its sire's generation.
-  bool operator ==(Object other) =>
-      other is Vampire && generation - 1 == other.generation;
-}
-
-void testCustomMap<K, V>(Map<K, V> typedMap) {
-  Map map = typedMap;
-  testLength(0, map);
-  var c11 = const Customer(1, 1);
-  var c12 = const Customer(1, 2);
-  var c21 = const Customer(2, 1);
-  var c22 = const Customer(2, 2);
-  // Sanity.
-  Expect.equals(c11, c12);
-  Expect.notEquals(c11, c21);
-  Expect.notEquals(c11, c22);
-  Expect.equals(c21, c22);
-  Expect.notEquals(c21, c11);
-  Expect.notEquals(c21, c12);
-
-  Expect.isTrue(myEquals(c11, c21));
-  Expect.isFalse(myEquals(c11, c12));
-  Expect.isFalse(myEquals(c11, c22));
-  Expect.isTrue(myEquals(c12, c22));
-  Expect.isFalse(myEquals(c12, c11));
-  Expect.isFalse(myEquals(c12, c21));
-
-  map[c11] = 42;
-  testLength(1, map);
-  Expect.isTrue(map.containsKey(c11));
-  Expect.isTrue(map.containsKey(c21));
-  Expect.isFalse(map.containsKey(c12));
-  Expect.isFalse(map.containsKey(c22));
-  Expect.equals(42, map[c11]);
-  Expect.equals(42, map[c21]);
-
-  map[c21] = 37;
-  testLength(1, map);
-  Expect.isTrue(map.containsKey(c11));
-  Expect.isTrue(map.containsKey(c21));
-  Expect.isFalse(map.containsKey(c12));
-  Expect.isFalse(map.containsKey(c22));
-  Expect.equals(37, map[c11]);
-  Expect.equals(37, map[c21]);
-
-  map[c22] = 42;
-  testLength(2, map);
-  Expect.isTrue(map.containsKey(c11));
-  Expect.isTrue(map.containsKey(c21));
-  Expect.isTrue(map.containsKey(c12));
-  Expect.isTrue(map.containsKey(c22));
-  Expect.equals(37, map[c11]);
-  Expect.equals(37, map[c21]);
-  Expect.equals(42, map[c12]);
-  Expect.equals(42, map[c22]);
-
-  Expect.equals(42, map.remove(c12));
-  testLength(1, map);
-  Expect.isTrue(map.containsKey(c11));
-  Expect.isTrue(map.containsKey(c21));
-  Expect.isFalse(map.containsKey(c12));
-  Expect.isFalse(map.containsKey(c22));
-  Expect.equals(37, map[c11]);
-  Expect.equals(37, map[c21]);
-
-  Expect.equals(37, map.remove(c11));
-  testLength(0, map);
-}
-
-void testUnmodifiableMap(Map map) {
-  Expect.isTrue(map.containsKey(1));
-  testLength(1, map);
-  Expect.equals(1, map.keys.first);
-  Expect.equals(37, map.values.first);
-
-  Expect.throws(map.clear);
-  Expect.throws(() {
-    map.remove(1);
-  });
-  Expect.throws(() {
-    map[2] = 42;
-  });
-  Expect.throws(() {
-    map.addAll({2: 42});
-  });
-}
-
-class Customer {
-  final int id;
-  final int secondId;
-  const Customer(this.id, this.secondId);
-  int get hashCode => id;
-  bool operator ==(Object other) {
-    if (other is! Customer) return false;
-    Customer otherCustomer = other;
-    return id == otherCustomer.id;
-  }
-}
-
-int myHashCode(Customer c) => c.secondId;
-bool myEquals(Customer a, Customer b) => a.secondId == b.secondId;
-
-void testIterationOrder(Map map) {
-  var order = ['0', '6', '4', '2', '7', '9', '7', '1', '2', '5', '3'];
-  for (int i = 0; i < order.length; i++) map[order[i]] = i;
-  Expect.listEquals(
-      map.keys.toList(), ['0', '6', '4', '2', '7', '9', '1', '5', '3']);
-  Expect.listEquals(map.values.toList(), [0, 1, 2, 8, 6, 5, 7, 9, 10]);
-}
-
-void testOtherKeys(Map<int, int> map) {
-  // Test that non-int keys are allowed in containsKey/remove/lookup.
-  // Custom hash sets and tree sets must be constructed so they don't
-  // use the equality/comparator on incompatible objects.
-
-  // This should not throw in either checked or unchecked mode.
-  Expect.isFalse(map.containsKey("not an int"));
-  Expect.isFalse(map.containsKey(1.5));
-  Expect.isNull(map.remove("not an int"));
-  Expect.isNull(map.remove(1.5));
-  Expect.isNull(map["not an int"]);
-  Expect.isNull(map[1.5]);
-}
-
-class Mutable {
-  int id;
-  Mutable(this.id);
-  int get hashCode => id;
-  bool operator ==(other) => other is Mutable && other.id == id;
-}
-
-// Slow implementation of Map based on MapBase.
-abstract class MapBaseOperations<K, V> {
-  final List _keys = <K>[];
-  final List _values = <V>[];
-  int _modCount = 0;
-
-  V operator [](Object key) {
-    int index = _keys.indexOf(key);
-    if (index < 0) return null;
-    return _values[index];
-  }
-
-  Iterable<K> get keys => new TestKeyIterable<K>(this);
-
-  void operator []=(K key, V value) {
-    int index = _keys.indexOf(key);
-    if (index >= 0) {
-      _values[index] = value;
-    } else {
-      _modCount++;
-      _keys.add(key);
-      _values.add(value);
-    }
-  }
-
-  V remove(Object key) {
-    int index = _keys.indexOf(key);
-    if (index >= 0) {
-      var result = _values[index];
-      key = _keys.removeLast();
-      var value = _values.removeLast();
-      if (index != _keys.length) {
-        _keys[index] = key;
-        _values[index] = value;
-      }
-      _modCount++;
-      return result;
-    }
-    return null;
-  }
-
-  void clear() {
-    // Clear cannot be based on remove, since remove won't remove keys that
-    // are not equal to themselves. It will fail the testNaNKeys test.
-    _keys.clear();
-    _values.clear();
-    _modCount++;
-  }
-}
-
-class MapBaseMap<K, V> = MapBase<K, V> with MapBaseOperations<K, V>;
-class MapMixinMap<K, V> = MapBaseOperations<K, V> with MapMixin<K, V>;
-
-class TestKeyIterable<K> extends IterableBase<K> {
-  final _map;
-  TestKeyIterable(this._map);
-  int get length => _map._keys.length;
-  Iterator<K> get iterator => new TestKeyIterator<K>(_map);
-}
-
-class TestKeyIterator<K> implements Iterator<K> {
-  final _map;
-  final int _modCount;
-  int _index = 0;
-  var _current;
-  TestKeyIterator(map)
-      : _map = map,
-        _modCount = map._modCount;
-  bool moveNext() {
-    if (_modCount != _map._modCount) {
-      throw new ConcurrentModificationError(_map);
-    }
-    if (_index == _map._keys.length) {
-      _current = null;
-      return false;
-    }
-    _current = _map._keys[_index++];
-    return true;
-  }
-
-  K get current => _current;
-}
-
-// Slow implementation of Map based on MapBase.
-class UnmodifiableMapBaseMap<K, V> extends UnmodifiableMapBase<K, V> {
-  final List _keys = <K>[];
-  final List _values = <V>[];
-  UnmodifiableMapBaseMap(List pairs) {
-    for (int i = 0; i < pairs.length; i += 2) {
-      _keys.add(pairs[i]);
-      _values.add(pairs[i + 1]);
-    }
-  }
-
-  int get _modCount => 0;
-
-  V operator [](Object key) {
-    int index = _keys.indexOf(key);
-    if (index < 0) return null;
-    return _values[index];
-  }
-
-  Iterable<K> get keys => _keys.skip(0);
-}
-
-abstract class Super implements Comparable {}
-
-abstract class Interface implements Comparable {}
-
-class Sub extends Super implements Interface, Comparable {
-  int compareTo(dynamic other) => 0;
-  int get hashCode => 0;
-  bool operator ==(other) => other is Sub;
-}
-
-expectMap(Map expect, Map actual) {
-  Expect.equals(expect.length, actual.length, "length");
-  for (var key in expect.keys) {
-    Expect.isTrue(actual.containsKey(key), "containsKey $key");
-    Expect.equals(expect[key], actual[key]);
-  }
-}
-
-void testFrom() {
-  // Check contents.
-  for (var map in [
-    {},
-    {1: 1},
-    {1: 2, 3: 4, 5: 6, 7: 8}
-  ]) {
-    expectMap(map, new Map.from(map));
-    expectMap(map, new HashMap.from(map));
-    expectMap(map, new LinkedHashMap.from(map));
-    expectMap(map, new SplayTreeMap.from(map));
-  }
-  // Test type combinations allowed.
-  Map<int, int> intMap = <int, int>{1: 2, 3: 4};
-  Map<num, num> numMap = <num, num>{1: 2, 3: 4};
-  expectMap(intMap, new Map<int, int>.from(numMap));
-  expectMap(intMap, new Map<num, num>.from(intMap));
-  expectMap(intMap, new HashMap<int, int>.from(numMap));
-  expectMap(intMap, new HashMap<num, num>.from(intMap));
-  expectMap(intMap, new LinkedHashMap<int, int>.from(numMap));
-  expectMap(intMap, new LinkedHashMap<num, num>.from(intMap));
-  expectMap(intMap, new SplayTreeMap<int, int>.from(numMap));
-  expectMap(intMap, new SplayTreeMap<num, num>.from(intMap));
-
-  var sub = new Sub();
-  Map<Super, Super> superMap = <Super, Super>{sub: sub};
-  Map<Interface, Interface> interfaceMap = <Interface, Interface>{sub: sub};
-  expectMap(superMap, new Map<Super, Super>.from(interfaceMap));
-  expectMap(superMap, new Map<Interface, Interface>.from(superMap));
-  expectMap(superMap, new HashMap<Super, Super>.from(interfaceMap));
-  expectMap(superMap, new HashMap<Interface, Interface>.from(superMap));
-  expectMap(superMap, new LinkedHashMap<Super, Super>.from(interfaceMap));
-  expectMap(superMap, new LinkedHashMap<Interface, Interface>.from(superMap));
-  expectMap(superMap, new SplayTreeMap<Super, Super>.from(interfaceMap));
-  expectMap(superMap, new SplayTreeMap<Interface, Interface>.from(superMap));
-}
-
-void testTypeAnnotations(Map<int, int> map) {
-  map[0] = 100;
-  map[999] = 101;
-  map[0x800000000] = 102;
-  map[0x20000000000000] = 103;
-  Expect.isFalse(map.containsKey("not an it"));
-  Expect.isNull(map.remove("not an it"));
-
-  testLength(4, map);
-  Expect.equals(101, map.remove(999));
-  testLength(3, map);
-  Expect.equals(102, map.remove(0x800000000));
-  testLength(2, map);
-  Expect.equals(103, map.remove(0x20000000000000));
-  testLength(1, map);
-}
-
-void testUnmodifiableMaps() {
-  void checkUnmodifiable(Map<int, int> map) {
-    Expect.throws(() => map[0] = 0);
-    Expect.throws(() => map.addAll({0: 0}));
-    Expect.throws(() => map.addEntries({0: 0}.entries));
-    Expect.throws(() => map.clear());
-    Expect.throws(() => map.putIfAbsent(0, () => 0));
-    Expect.throws(() => map.remove(0));
-    Expect.throws(() => map.removeWhere((k, v) => true));
-    Expect.throws(() => map.update(0, (v) => v, ifAbsent: () => 0));
-    Expect.throws(() => map.updateAll((k, v) => v));
-  }
-
-  checkUnmodifiable(const {1: 1});
-  checkUnmodifiable(Map.unmodifiable({1: 1}));
-  checkUnmodifiable(UnmodifiableMapView({1: 1}));
-  checkUnmodifiable(const MapView({1: 1}));
-}
diff --git a/tests/corelib_2/map_to_string_test.dart b/tests/corelib_2/map_to_string_test.dart
deleted file mode 100644
index d692759ebce..00000000000
--- a/tests/corelib_2/map_to_string_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  Map m = new Map();
-
-  m[0] = 0;
-  m[1] = 1;
-  m[2] = m;
-
-  Expect.equals('{0: 0, 1: 1, 2: {...}}', m.toString());
-
-  // Throwing in the middle of a toString does not leave the
-  // map as being visited
-  ThrowOnToString err = new ThrowOnToString();
-  m[1] = err;
-  Expect.throws(m.toString, (e) => e == "Bad!");
-  m[1] = 1;
-  Expect.equals('{0: 0, 1: 1, 2: {...}}', m.toString());
-  m[err] = 1;
-  Expect.throws(m.toString, (e) => e == "Bad!");
-  m.remove(err);
-}
-
-class ThrowOnToString {
-  String toString() {
-    throw "Bad!";
-  }
-}
diff --git a/tests/corelib_2/map_unmodifiable_cast_test.dart b/tests/corelib_2/map_unmodifiable_cast_test.dart
deleted file mode 100644
index b45a3fd2d41..00000000000
--- a/tests/corelib_2/map_unmodifiable_cast_test.dart
+++ /dev/null
@@ -1,69 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library map_unmodifiable_cast_test;
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-
-void main() {
-  testNum(const {1: 37}, "const");
-  testNum(const <num, num>{1: 37}.cast<int, int>(), "const.cast");
-
-  testNum(new UnmodifiableMapView({1: 37}), "unmod");
-  testNum(new UnmodifiableMapView<num, num>(<num, num>{1: 37}), "unmod.cast");
-  testNum(new UnmodifiableMapView<num, num>(<num, num>{1: 37}).cast<int, int>(),
-      "unmodView<num>(num).cast<int>");
-  testNum(new UnmodifiableMapView<num, num>(<int, int>{1: 37}).cast<int, int>(),
-      "unmodView<num>(int).cast<int>");
-  testNum(
-      new UnmodifiableMapView<Object, Object>(<num, num>{1: 37})
-          .cast<int, int>(),
-      "unmodView<Object>(num).cast<int>");
-  testNum(
-      new UnmodifiableMapView<Object, Object>(<int, int>{1: 37})
-          .cast<num, num>(),
-      "unmodView<Object>(int).cast<num>");
-
-  var m2 = new Map<num, num>.unmodifiable({1: 37});
-  testNum(m2, "Map<num>.unmod");
-  testNum(m2.cast<int, int>(), "Map<num>.unmod.cast<int>");
-
-  Map<Symbol, dynamic> nsm = new NsmMap().foo(a: 0);
-  test(nsm, #a, 0, "nsm", noSuchMethodMap: true);
-  test(nsm.cast<Object, int>(), #a, 0, "nsm.cast", noSuchMethodMap: true);
-}
-
-void testNum(Map<Object, Object> map, String name) {
-  test(map, 1, 37, name);
-}
-
-void test(
-    Map<Object, Object> map, Object firstKey, Object firstValue, String name,
-    {bool noSuchMethodMap: false}) {
-  if (!noSuchMethodMap) {
-    Expect.isTrue(map.containsKey(firstKey), "$name.containsKey");
-    Expect.equals(1, map.length, "$name.length");
-    Expect.equals(firstKey, map.keys.first, "$name.keys.first");
-    Expect.equals(firstValue, map.values.first, "$name.values.first");
-  }
-
-  Expect.throwsUnsupportedError(map.clear, "$name.clear");
-  Expect.throwsUnsupportedError(() {
-    map.remove(firstKey);
-  }, "$name.remove");
-  Expect.throwsUnsupportedError(() {
-    map[null] = null;
-  }, "$name[]=");
-  Expect.throwsUnsupportedError(() {
-    map.addAll(<Null, Null>{null: null});
-  }, "$name.addAll");
-}
-
-class NsmMap {
-  noSuchMethod(i) => i.namedArguments;
-  foo({a, b, c, d});
-}
diff --git a/tests/corelib_2/map_update_test.dart b/tests/corelib_2/map_update_test.dart
deleted file mode 100644
index fa2eebc4229..00000000000
--- a/tests/corelib_2/map_update_test.dart
+++ /dev/null
@@ -1,216 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-import 'dart:convert' show json;
-
-Map<String, dynamic> newJsonMap() => json.decode('{}');
-Map<String, dynamic> newJsonMapCustomReviver() =>
-    json.decode('{}', reviver: (key, value) => value);
-
-void main() {
-  test({});
-  test(new LinkedHashMap());
-  test(new HashMap());
-  test(new LinkedHashMap.identity());
-  test(new HashMap.identity());
-  test(new MapView(new HashMap()));
-  test(new MapBaseMap());
-  test(new MapMixinMap());
-  test(newJsonMap());
-  test(newJsonMapCustomReviver());
-  testNonNull(new SplayTreeMap());
-  testNonNull(new SplayTreeMap(Comparable.compare));
-  testNonNull(new MapView(new SplayTreeMap()));
-}
-
-void test(Map<Comparable, Object> map) {
-  testNonNull(map);
-
-  // Also works with null keys and values (omitted for splay-tree based maps)
-  map.clear();
-  map.update(null, unreachable, ifAbsent: () => null);
-  Expect.mapEquals({null: null}, map);
-  map.update(null, (v) => "$v", ifAbsent: unreachable);
-  Expect.mapEquals({null: "null"}, map);
-  map.update(null, (v) => null, ifAbsent: unreachable);
-  Expect.mapEquals({null: null}, map);
-}
-
-void testNonNull(Map<Comparable, Object> map) {
-  // Only use literal String keys since JSON maps only accept strings,
-  // and literals works with identity-maps, and it's comparable for SplayTreeMap
-  // maps.
-  Expect.mapEquals({}, map);
-  map.update("key1", unreachable, ifAbsent: () => 42);
-  Expect.mapEquals({"key1": 42}, map);
-  map.clear();
-  map["key1"] = 42;
-  map.update("key1", (v) => 1 + v, ifAbsent: unreachable);
-  Expect.mapEquals({"key1": 43}, map);
-  map.clear();
-
-  // Operations on maps with multiple elements.
-  var multi = {
-    "k1": 1,
-    "k2": 2,
-    "k3": 3,
-    "k4": 4,
-    "k5": 5,
-    "k6": 6,
-    "k7": 7,
-    "k8": 8,
-    "k9": 9,
-    "k10": 10,
-  };
-  map.addAll(multi);
-  Expect.mapEquals(multi, map);
-  map.update("k3", (v) => 13);
-  map.update("k6", (v) => 16);
-  map.update("k11", unreachable, ifAbsent: () => 21);
-  Expect.mapEquals({
-    "k1": 1,
-    "k2": 2,
-    "k3": 13,
-    "k4": 4,
-    "k5": 5,
-    "k6": 16,
-    "k7": 7,
-    "k8": 8,
-    "k9": 9,
-    "k10": 10,
-    "k11": 21,
-  }, map);
-
-  map.clear();
-  map.updateAll((k, v) => throw "unreachable");
-  Expect.mapEquals({}, map);
-
-  map.addAll(multi);
-  map.updateAll((k, v) => "$k:$v");
-  Expect.mapEquals({
-    "k1": "k1:1",
-    "k2": "k2:2",
-    "k3": "k3:3",
-    "k4": "k4:4",
-    "k5": "k5:5",
-    "k6": "k6:6",
-    "k7": "k7:7",
-    "k8": "k8:8",
-    "k9": "k9:9",
-    "k10": "k10:10",
-  }, map);
-
-  map.clear();
-  Expect.throws(
-      () => map.update("key1", unreachable, ifAbsent: () => throw "expected"),
-      (t) => t == "expected");
-
-  map["key1"] = 42;
-  Expect.throws(() => map.update("key1", (_) => throw "expected"),
-      (t) => t == "expected");
-
-  // No ifAbsent means throw if key not there.
-  Expect.throws(() => map.update("key-not", unreachable), (e) => e is Error);
-
-  Expect.throws(() => map.update("key1", null), (e) => e is Error);
-
-  // Works with null values.
-  map.clear();
-  map.update("key1", unreachable, ifAbsent: () => null);
-  Expect.mapEquals({"key1": null}, map);
-  map.update("key1", (v) => "$v", ifAbsent: unreachable);
-  Expect.mapEquals({"key1": "null"}, map);
-  map.update("key1", (v) => null, ifAbsent: unreachable);
-  Expect.mapEquals({"key1": null}, map);
-}
-
-// Slow implementation of Map based on MapBase.
-abstract class MapBaseOperations<K, V> {
-  final List _keys = <K>[];
-  final List _values = <V>[];
-  int _modCount = 0;
-
-  V operator [](Object key) {
-    int index = _keys.indexOf(key);
-    if (index < 0) return null;
-    return _values[index];
-  }
-
-  Iterable<K> get keys => new TestKeyIterable<K>(this);
-
-  void operator []=(K key, V value) {
-    int index = _keys.indexOf(key);
-    if (index >= 0) {
-      _values[index] = value;
-    } else {
-      _modCount++;
-      _keys.add(key);
-      _values.add(value);
-    }
-  }
-
-  V remove(Object key) {
-    int index = _keys.indexOf(key);
-    if (index >= 0) {
-      var result = _values[index];
-      key = _keys.removeLast();
-      var value = _values.removeLast();
-      if (index != _keys.length) {
-        _keys[index] = key;
-        _values[index] = value;
-      }
-      _modCount++;
-      return result;
-    }
-    return null;
-  }
-
-  void clear() {
-    // Clear cannot be based on remove, since remove won't remove keys that
-    // are not equal to themselves. It will fail the testNaNKeys test.
-    _keys.clear();
-    _values.clear();
-    _modCount++;
-  }
-}
-
-class MapBaseMap<K, V> = MapBase<K, V> with MapBaseOperations<K, V>;
-class MapMixinMap<K, V> = MapBaseOperations<K, V> with MapMixin<K, V>;
-
-class TestKeyIterable<K> extends IterableBase<K> {
-  final _map;
-  TestKeyIterable(this._map);
-  int get length => _map._keys.length;
-  Iterator<K> get iterator => new TestKeyIterator<K>(_map);
-}
-
-class TestKeyIterator<K> implements Iterator<K> {
-  final _map;
-  final int _modCount;
-  int _index = 0;
-  var _current;
-  TestKeyIterator(map)
-      : _map = map,
-        _modCount = map._modCount;
-
-  bool moveNext() {
-    if (_modCount != _map._modCount) {
-      throw new ConcurrentModificationError(_map);
-    }
-    if (_index == _map._keys.length) {
-      _current = null;
-      return false;
-    }
-    _current = _map._keys[_index++];
-    return true;
-  }
-
-  K get current => _current;
-}
-
-Null unreachable([_, __]) => throw "unreachable";
diff --git a/tests/corelib_2/map_values2_test.dart b/tests/corelib_2/map_values2_test.dart
deleted file mode 100644
index c48dd8594b3..00000000000
--- a/tests/corelib_2/map_values2_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  var map1 = <String, int>{"foo": 42, "bar": 499};
-  var map2 = <String, int>{};
-  var map3 = const <String, int>{"foo": 42, "bar": 499};
-  var map4 = const <String, int>{};
-  var map5 = new Map<String, int>();
-  map5["foo"] = 43;
-  map5["bar"] = 500;
-  var map6 = new Map<String, int>();
-
-  Expect.isTrue(map1.values is Iterable<int>);
-  Expect.isFalse(map1.values is Iterable<bool>);
-  Expect.isFalse(map1.values is List);
-  Expect.equals(2, map1.values.length);
-  Expect.equals(42, map1.values.first);
-  Expect.equals(499, map1.values.last);
-
-  Expect.isTrue(map2.values is Iterable<int>);
-  Expect.isFalse(map2.values is Iterable<bool>);
-  Expect.isFalse(map2.values is List);
-  Expect.equals(0, map2.values.length);
-
-  Expect.isTrue(map3.values is Iterable<int>);
-  Expect.isFalse(map3.values is Iterable<bool>);
-  Expect.isFalse(map3.values is List);
-  Expect.equals(2, map3.values.length);
-  Expect.equals(42, map3.values.first);
-  Expect.equals(499, map3.values.last);
-
-  Expect.isTrue(map4.values is Iterable<int>);
-  Expect.isFalse(map4.values is Iterable<bool>);
-  Expect.isFalse(map4.values is List);
-  Expect.equals(0, map4.values.length);
-
-  Expect.isTrue(map5.values is Iterable<int>);
-  Expect.isFalse(map5.values is Iterable<bool>);
-  Expect.isFalse(map5.values is List);
-  Expect.equals(2, map5.values.length);
-  // new Map gives a LinkedHashMap, so we know the order.
-  Expect.isTrue(map5.values.first == 43);
-  Expect.isTrue(map5.values.last == 500);
-
-  Expect.isTrue(map6.values is Iterable<int>);
-  Expect.isFalse(map6.values is Iterable<bool>);
-  Expect.isFalse(map6.values is List);
-  Expect.equals(0, map6.values.length);
-}
diff --git a/tests/corelib_2/map_values3_test.dart b/tests/corelib_2/map_values3_test.dart
deleted file mode 100644
index ef42c219d67..00000000000
--- a/tests/corelib_2/map_values3_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  var map1 = <int, String>{1: "42", 2: "499"};
-  var map2 = <int, String>{};
-  var map3 = const <int, String>{3: "42", 4: "499"};
-  var map4 = const <int, String>{};
-  var map5 = new Map<int, String>();
-  map5[5] = "43";
-  map5[6] = "500";
-  var map6 = new Map<int, String>();
-
-  Expect.isTrue(map1.values is Iterable<String>);
-  Expect.isFalse(map1.values is Iterable<bool>);
-  Expect.isFalse(map1.values is List);
-  Expect.equals(2, map1.values.length);
-  Expect.equals("42", map1.values.first);
-  Expect.equals("499", map1.values.last);
-
-  Expect.isTrue(map2.values is Iterable<String>);
-  Expect.isFalse(map2.values is Iterable<bool>);
-  Expect.isFalse(map2.values is List);
-  Expect.equals(0, map2.values.length);
-
-  Expect.isTrue(map3.values is Iterable<String>);
-  Expect.isFalse(map3.values is Iterable<bool>);
-  Expect.isFalse(map3.values is List);
-  Expect.equals(2, map3.values.length);
-  Expect.equals("42", map3.values.first);
-  Expect.equals("499", map3.values.last);
-
-  Expect.isTrue(map4.values is Iterable<String>);
-  Expect.isFalse(map4.values is Iterable<bool>);
-  Expect.isFalse(map4.values is List);
-  Expect.equals(0, map4.values.length);
-
-  Expect.isTrue(map5.values is Iterable<String>);
-  Expect.isFalse(map5.values is Iterable<bool>);
-  Expect.isFalse(map5.values is List);
-  Expect.equals(2, map5.values.length);
-  // new Map gives a LinkedHashMap, so we know the order.
-  Expect.isTrue(map5.values.first == "43");
-  Expect.isTrue(map5.values.last == "500");
-
-  Expect.isTrue(map6.values is Iterable<String>);
-  Expect.isFalse(map6.values is Iterable<bool>);
-  Expect.isFalse(map6.values is List);
-  Expect.equals(0, map6.values.length);
-}
diff --git a/tests/corelib_2/map_values4_test.dart b/tests/corelib_2/map_values4_test.dart
deleted file mode 100644
index ffa51f019f3..00000000000
--- a/tests/corelib_2/map_values4_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart2js had a bug where the type information was not set correctly if the
-// generic type of the map was not directly used (but only indirectly through
-// map.values).
-
-main() {
-  var map1 = <int, String>{1: "42", 2: "499"};
-  Expect.isTrue(map1.values is Iterable<String>);
-  Expect.isFalse(map1.values is Iterable<bool>);
-}
diff --git a/tests/corelib_2/map_values_test.dart b/tests/corelib_2/map_values_test.dart
deleted file mode 100644
index 2813971ae38..00000000000
--- a/tests/corelib_2/map_values_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  var map1 = {"foo": 42, "bar": 499};
-  var map2 = {};
-  var map3 = const {"foo": 42, "bar": 499};
-  var map4 = const {};
-  var map5 = new Map<String, int>();
-  map5["foo"] = 43;
-  map5["bar"] = 500;
-  var map6 = new Map<String, bool>();
-
-  Expect.isTrue(map1.values is Iterable);
-  Expect.isFalse(map1.values is List);
-  Expect.equals(2, map1.values.length);
-  Expect.equals(42, map1.values.first);
-  Expect.equals(499, map1.values.last);
-
-  Expect.isTrue(map2.values is Iterable);
-  Expect.isFalse(map2.values is List);
-  Expect.equals(0, map2.values.length);
-
-  Expect.isTrue(map3.values is Iterable);
-  Expect.isFalse(map3.values is List);
-  Expect.equals(2, map3.values.length);
-  Expect.equals(42, map3.values.first);
-  Expect.equals(499, map3.values.last);
-
-  Expect.isTrue(map4.values is Iterable);
-  Expect.isFalse(map4.values is List);
-  Expect.equals(0, map4.values.length);
-
-  Expect.isTrue(map5.values is Iterable);
-  Expect.isFalse(map5.values is List);
-  Expect.equals(2, map5.values.length);
-  Expect.isTrue(map5.values.first == 43 || map5.values.first == 500);
-  Expect.isTrue(map5.values.last == 43 || map5.values.last == 500);
-  Expect.notEquals(map5.values.first, map5.values.last);
-
-  Expect.isTrue(map6.values is Iterable);
-  Expect.isFalse(map6.values is List);
-  Expect.equals(0, map6.values.length);
-}
diff --git a/tests/corelib_2/nan_infinity_test.dart b/tests/corelib_2/nan_infinity_test.dart
deleted file mode 100644
index a3e836b7004..00000000000
--- a/tests/corelib_2/nan_infinity_test.dart
+++ /dev/null
@@ -1,92 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test program for testing NaN and Infinity.
-
-void main() {
-  // Sanity tests.
-  Expect.isFalse(1.5.isNaN);
-  Expect.isFalse(1.5.isInfinite);
-  Expect.isTrue(1.5.isFinite);
-  Expect.isFalse(1.5.isNegative);
-  Expect.isTrue((-1.5).isNegative);
-  Expect.isFalse(0.0.isNegative);
-  Expect.isTrue((-0.0).isNegative);
-  Expect.isTrue((-0.0).isFinite);
-
-  Expect.isFalse(1.isNaN);
-  Expect.isFalse(1.isInfinite);
-  Expect.isTrue(1.isFinite);
-  Expect.isFalse(1.isNegative);
-  Expect.isTrue((-1).isNegative);
-
-  // Test that predicates give the correct result.
-  Expect.isTrue(double.nan.isNaN);
-  Expect.isFalse(double.nan.isInfinite);
-  Expect.isFalse(double.nan.isFinite);
-  Expect.isFalse(double.nan.isNegative);
-  Expect.isFalse((-double.nan).isNegative);
-
-  Expect.isFalse(double.infinity.isNaN);
-  Expect.isTrue(double.infinity.isInfinite);
-  Expect.isFalse(double.infinity.isFinite);
-  Expect.isFalse(double.infinity.isNegative);
-  Expect.isTrue((-double.infinity).isNegative);
-
-  Expect.isFalse(double.negativeInfinity.isNaN);
-  Expect.isTrue(double.negativeInfinity.isInfinite);
-  Expect.isFalse(double.negativeInfinity.isFinite);
-  Expect.isTrue(double.negativeInfinity.isNegative);
-  Expect.isFalse((-double.negativeInfinity).isNegative);
-
-  // Test toString.
-  Expect.equals("NaN", double.nan.toString());
-  Expect.equals("Infinity", double.infinity.toString());
-  Expect.equals("-Infinity", double.negativeInfinity.toString());
-
-  // Test identities.
-  Expect.isTrue(identical(double.nan, double.nan)); // //# 01: ok
-  Expect.isTrue(identical(double.infinity, double.infinity));
-  Expect.isTrue(identical(double.negativeInfinity, double.negativeInfinity));
-  Expect.isFalse(identical(double.nan, double.infinity));
-  Expect.isFalse(identical(double.nan, double.negativeInfinity));
-  Expect.isFalse(identical(double.infinity, double.negativeInfinity));
-  Expect.isFalse(identical(double.nan, -double.nan));
-  Expect.isTrue(identical(double.infinity, -double.negativeInfinity));
-  Expect.isTrue(identical(double.negativeInfinity, -double.infinity));
-
-  // Test equalities
-  Expect.isTrue(double.infinity == double.infinity);
-  Expect.isTrue(double.negativeInfinity == double.negativeInfinity);
-  Expect.isFalse(double.infinity == double.negativeInfinity);
-  Expect.isFalse(double.negativeInfinity == double.infinity);
-  Expect.isFalse(double.nan == double.nan);
-  Expect.isFalse(double.nan == double.infinity);
-  Expect.isFalse(double.nan == double.negativeInfinity);
-  Expect.isFalse(double.infinity == double.nan);
-  Expect.isFalse(double.negativeInfinity == double.nan);
-
-  // Test relational order.
-  Expect.isFalse(double.nan < double.nan);
-  Expect.isFalse(double.nan < double.infinity);
-  Expect.isFalse(double.nan < double.negativeInfinity);
-  Expect.isFalse(double.nan > double.nan);
-  Expect.isFalse(double.nan > double.infinity);
-  Expect.isFalse(double.nan > double.negativeInfinity);
-  Expect.isFalse(double.infinity < double.nan);
-  Expect.isFalse(double.negativeInfinity < double.nan);
-  Expect.isFalse(double.infinity > double.nan);
-  Expect.isFalse(double.negativeInfinity > double.nan);
-  Expect.isTrue(double.infinity > double.negativeInfinity);
-  Expect.isFalse(double.infinity < double.negativeInfinity);
-
-  // NaN is contagious.
-  Expect.isTrue((3.0 * double.nan).isNaN);
-  Expect.isTrue((3.0 + double.nan).isNaN);
-  Expect.isTrue((-double.nan).isNaN);
-}
diff --git a/tests/corelib_2/nsm_invocation_generic_test.dart b/tests/corelib_2/nsm_invocation_generic_test.dart
deleted file mode 100644
index 6123274b741..00000000000
--- a/tests/corelib_2/nsm_invocation_generic_test.dart
+++ /dev/null
@@ -1,80 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test the invocations passed to noSuchMethod for generic invocations.
-
-main() {
-  var argument = new Object();
-  var argument2 = new Object();
-  // Method invocation.
-  expectInvocation(
-      new Invocation.genericMethod(#name, [int], []), nsm.name<int>());
-  expectInvocation(new Invocation.genericMethod(#name, [int], [argument]),
-      nsm.name<int>(argument));
-  expectInvocation(
-      new Invocation.genericMethod(#name, [int], [], {#arg: argument}),
-      nsm.name<int>(arg: argument));
-  expectInvocation(
-      new Invocation.genericMethod(#name, [int], [argument], {#arg: argument2}),
-      nsm.name<int>(argument, arg: argument2));
-  // Call invocation.
-  expectInvocation(new Invocation.genericMethod(#call, [int], []), nsm<int>());
-  expectInvocation(new Invocation.genericMethod(#call, [int], [argument]),
-      nsm<int>(argument));
-  expectInvocation(
-      new Invocation.genericMethod(#call, [int], [], {#arg: argument}),
-      nsm<int>(arg: argument));
-  expectInvocation(
-      new Invocation.genericMethod(#call, [int], [argument], {#arg: argument2}),
-      nsm<int>(argument, arg: argument2));
-}
-
-dynamic nsm = new Recorder();
-
-class Recorder {
-  noSuchMethod(Invocation invocation) {
-    return invocation;
-  }
-}
-
-void checkUnmodifiableList(List<Object> list) {
-  if (list.isNotEmpty) {
-    Expect.throws(() {
-      list[0] = null;
-    });
-  }
-  Expect.throws(() {
-    list.add(null);
-  });
-}
-
-void checkUnmodifiableMap(Map<Symbol, Object> map) {
-  Expect.throws(() {
-    map[#key] = null;
-  });
-}
-
-expectInvocation(Invocation expect, Invocation actual) {
-  Expect.equals(expect.isGetter, actual.isGetter, "isGetter");
-  Expect.equals(expect.isSetter, actual.isSetter, "isSetter");
-  Expect.equals(expect.isAccessor, actual.isAccessor, "isAccessor");
-  Expect.equals(actual.isGetter || actual.isSetter, actual.isAccessor);
-  Expect.equals(expect.isMethod, actual.isMethod, "isMethod");
-  Expect.isTrue(actual.isMethod || actual.isGetter || actual.isSetter);
-  Expect.isFalse(actual.isMethod && actual.isGetter);
-  Expect.isFalse(actual.isMethod && actual.isSetter);
-  Expect.isFalse(actual.isSetter && actual.isGetter);
-  Expect.equals(expect.memberName, actual.memberName, "memberName");
-  Expect.listEquals(expect.typeArguments, actual.typeArguments, "types");
-  Expect.listEquals(
-      expect.positionalArguments, actual.positionalArguments, "positional");
-  Expect.mapEquals(expect.namedArguments, actual.namedArguments, "named");
-  checkUnmodifiableList(actual.typeArguments);
-  checkUnmodifiableList(actual.positionalArguments);
-  checkUnmodifiableMap(actual.namedArguments);
-}
diff --git a/tests/corelib_2/nsm_invocation_test.dart b/tests/corelib_2/nsm_invocation_test.dart
deleted file mode 100644
index 0d8c98bfe5c..00000000000
--- a/tests/corelib_2/nsm_invocation_test.dart
+++ /dev/null
@@ -1,89 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Tests the constructors of the Invocation class.
-
-main() {
-  var argument = new Object();
-  var argument2 = new Object();
-  // Getter Invocation.
-  expectInvocation(new Invocation.getter(#name), nsm.name);
-  // Setter Invocation.
-  expectInvocation(new Invocation.setter(const Symbol("name="), argument),
-      (nsm..name = argument).last);
-  // Method invocation.
-  expectInvocation(new Invocation.method(#name, []), nsm.name());
-  expectInvocation(
-      new Invocation.method(#name, [argument]), nsm.name(argument));
-  expectInvocation(new Invocation.method(#name, [], {#arg: argument}),
-      nsm.name(arg: argument));
-  expectInvocation(new Invocation.method(#name, [argument], {#arg: argument2}),
-      nsm.name(argument, arg: argument2));
-  // Operator invocation.
-  expectInvocation(new Invocation.method(#+, [argument]), nsm + argument);
-  expectInvocation(new Invocation.method(#-, [argument]), nsm - argument);
-  expectInvocation(new Invocation.method(#~, []), ~nsm);
-  expectInvocation(new Invocation.method(Symbol.unaryMinus, []), -nsm);
-  expectInvocation(new Invocation.method(#[], [argument]), nsm[argument]);
-  nsm[argument] = argument2;
-  expectInvocation(
-      new Invocation.method(#[]=, [argument, argument2]), nsm.last);
-  // Call invocation.
-  expectInvocation(new Invocation.method(#call, []), nsm());
-  expectInvocation(new Invocation.method(#call, [argument]), nsm(argument));
-  expectInvocation(
-      new Invocation.method(#call, [], {#arg: argument}), nsm(arg: argument));
-  expectInvocation(new Invocation.method(#call, [argument], {#arg: argument2}),
-      nsm(argument, arg: argument2));
-}
-
-dynamic nsm = new Recorder();
-
-class Recorder {
-  Invocation last;
-  noSuchMethod(Invocation invocation) {
-    return last = invocation;
-  }
-}
-
-void checkUnmodifiableList(List<Object> list) {
-  if (list.isNotEmpty) {
-    Expect.throws(() {
-      list[0] = null;
-    });
-  }
-  Expect.throws(() {
-    list.add(null);
-  });
-}
-
-void checkUnmodifiableMap(Map<Symbol, Object> map) {
-  Expect.throws(() {
-    map[#key] = null;
-  });
-}
-
-expectInvocation(Invocation expect, Invocation actual) {
-  Expect.equals(expect.isGetter, actual.isGetter, "isGetter");
-  Expect.equals(expect.isSetter, actual.isSetter, "isSetter");
-  Expect.equals(expect.isAccessor, actual.isAccessor, "isAccessor");
-  Expect.equals(actual.isGetter || actual.isSetter, actual.isAccessor);
-  Expect.equals(expect.isMethod, actual.isMethod, "isMethod");
-  Expect.isTrue(actual.isMethod || actual.isGetter || actual.isSetter);
-  Expect.isFalse(actual.isMethod && actual.isGetter);
-  Expect.isFalse(actual.isMethod && actual.isSetter);
-  Expect.isFalse(actual.isSetter && actual.isGetter);
-  Expect.equals(expect.memberName, actual.memberName, "memberName");
-  Expect.listEquals(expect.typeArguments, actual.typeArguments, "types");
-  Expect.listEquals(
-      expect.positionalArguments, actual.positionalArguments, "positional");
-  Expect.mapEquals(expect.namedArguments, actual.namedArguments, "named");
-  checkUnmodifiableList(actual.typeArguments);
-  checkUnmodifiableList(actual.positionalArguments);
-  checkUnmodifiableMap(actual.namedArguments);
-}
diff --git a/tests/corelib_2/null_closurized_method_tostring_test.dart b/tests/corelib_2/null_closurized_method_tostring_test.dart
deleted file mode 100644
index e7439d82449..00000000000
--- a/tests/corelib_2/null_closurized_method_tostring_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-// The closurized methods of `null` have working `toString()` methods.
-// See #48322.
-
-void main() {
-  check(null.toString);
-  check(null.noSuchMethod);
-}
-
-void check(Object o) {
-  final s = o.toString();
-  Expect.notEquals("", s);
-}
diff --git a/tests/corelib_2/null_nosuchmethod_test.dart b/tests/corelib_2/null_nosuchmethod_test.dart
deleted file mode 100644
index 70a1f8ce807..00000000000
--- a/tests/corelib_2/null_nosuchmethod_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--lazy-dispatchers
-// VMOptions=--no-lazy-dispatchers
-
-import "package:expect/expect.dart";
-
-// Test that Null's noSuchMethod can be closurized and called directly.
-
-class InvocationFactory {
-  static final dynamic instance = new InvocationFactory();
-  noSuchMethod(i) => i;
-}
-
-main() {
-  dynamic x;
-  // Non-existing method calls noSuchMethod.
-  Expect.throwsNoSuchMethodError(() => x.foo());
-
-  var invocation = InvocationFactory.instance.foo;
-
-  // Calling noSuchMethod directly.
-  Expect.throwsNoSuchMethodError(() => x.noSuchMethod(invocation, []));
-
-  // Closurizing noSuchMethod and calling it.
-  dynamic nsm = x.noSuchMethod;
-  Expect.notEquals(null, nsm);
-  Expect.throwsTypeError(() => nsm("foo"));
-
-  Expect.throwsNoSuchMethodError(() => nsm(invocation));
-  Expect.throwsNoSuchMethodError(
-      () => nsm(invocation, [])); // wrong number of args
-
-  // Wrong number and type of arguments.
-  Expect.throwsNoSuchMethodError(() => nsm("foo", [])); //# 01: ok
-}
diff --git a/tests/corelib_2/null_test.dart b/tests/corelib_2/null_test.dart
deleted file mode 100644
index 0f066463df6..00000000000
--- a/tests/corelib_2/null_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that Null inherits properties from Object.
-
-main() {
-  var x;
-
-  Expect.isTrue(x is Object);
-  Expect.isTrue(x is dynamic);
-  Expect.isTrue(x is! String);
-  Expect.isTrue(x is! int);
-
-  // These shouldn't throw.
-  x.runtimeType;
-  x.toString();
-  x.hashCode;
-
-  // operator== is inherited from Object. It's the same as identical.
-  // It's not really testable.
-  Expect.isTrue(identical(x, null));
-  Expect.isTrue(x == null);
-
-  // Methods can be closurized and yields the same result.
-  var ts = x.toString;
-  Expect.equals(null.toString(), ts());
-
-  // noSuchMethod is tested in null_nosuchmethod_test.dart.
-}
diff --git a/tests/corelib_2/num_clamp_test.dart b/tests/corelib_2/num_clamp_test.dart
deleted file mode 100644
index 319fa9d7706..00000000000
--- a/tests/corelib_2/num_clamp_test.dart
+++ /dev/null
@@ -1,69 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test num.clamp.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-testIntClamp() {
-  Expect.equals(2, 2.clamp(1, 3));
-  Expect.equals(1, 0.clamp(1, 3));
-  Expect.equals(3, 4.clamp(1, 3));
-  Expect.equals(-2, (-2).clamp(-3, -1));
-  Expect.equals(-1, 0.clamp(-3, -1));
-  Expect.equals(-3, (-4).clamp(-3, -1));
-  Expect.equals(0, 1.clamp(0, 0));
-  Expect.equals(0, (-1).clamp(0, 0));
-  Expect.equals(0, 0.clamp(0, 0));
-  Expect.throwsArgumentError(() => 0.clamp(0, -1));
-}
-
-testDoubleClamp() {
-  Expect.equals(2.0, 2.clamp(1.0, 3.0));
-  Expect.equals(1.0, 0.clamp(1.0, 3.0));
-  Expect.equals(3.0, 4.clamp(1.0, 3.0));
-  Expect.equals(-2.0, (-2.0).clamp(-3.0, -1.0));
-  Expect.equals(-1.0, 0.0.clamp(-3.0, -1.0));
-  Expect.equals(-3.0, (-4.0).clamp(-3.0, -1.0));
-  Expect.equals(0.0, 1.0.clamp(0.0, 0.0));
-  Expect.equals(0.0, (-1.0).clamp(0.0, 0.0));
-  Expect.equals(0.0, 0.0.clamp(0.0, 0.0));
-  Expect.throwsArgumentError(() => 0.0.clamp(0.0, -1.0));
-}
-
-testDoubleClampInt() {
-  Expect.equals(2.0, 2.0.clamp(1, 3));
-  Expect.equals(1, 0.0.clamp(1, 3));
-  Expect.isTrue(0.0.clamp(1, 3) is int);
-  Expect.equals(3, 4.0.clamp(1, 3));
-  Expect.isTrue(4.0.clamp(1, 3) is int);
-  Expect.equals(-2.0, (-2.0).clamp(-3, -1));
-  Expect.equals(-1, 0.0.clamp(-3, -1));
-  Expect.isTrue(0.0.clamp(-3, -1) is int);
-  Expect.equals(-3, (-4.0).clamp(-3, -1));
-  Expect.isTrue((-4.0).clamp(-3, -1) is int);
-  Expect.equals(0, 1.0.clamp(0, 0));
-  Expect.isTrue(1.0.clamp(0, 0) is int);
-  Expect.equals(0, (-1.0).clamp(0, 0));
-  Expect.isTrue((-1.0).clamp(0, 0) is int);
-  Expect.equals(0.0, 0.0.clamp(0, 0));
-  Expect.isTrue(0.0.clamp(0, 0) is double);
-  Expect.throwsArgumentError(() => 0.0.clamp(0, -1));
-}
-
-testDoubleClampExtremes() {
-  Expect.equals(2.0, 2.0.clamp(-double.infinity, double.infinity));
-  Expect.equals(2.0, 2.0.clamp(-double.infinity, double.nan));
-  Expect.equals(double.infinity, 2.0.clamp(double.infinity, double.nan));
-  Expect.isTrue(2.0.clamp(double.nan, double.nan).isNaN);
-  Expect.throwsArgumentError(() => 0.0.clamp(double.nan, double.infinity));
-}
-
-main() {
-  testIntClamp();
-  testDoubleClamp();
-  testDoubleClampInt();
-  testDoubleClampExtremes();
-}
diff --git a/tests/corelib_2/num_parse_test.dart b/tests/corelib_2/num_parse_test.dart
deleted file mode 100644
index 3b6450eeda4..00000000000
--- a/tests/corelib_2/num_parse_test.dart
+++ /dev/null
@@ -1,233 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-const whiteSpace = const [
-  "",
-  "\x09",
-  "\x0a",
-  "\x0b",
-  "\x0c",
-  "\x0d",
-  "\x85",
-  "\xa0",
-  "\u1680",
-  "\u2000",
-  "\u2001",
-  "\u2002",
-  "\u2003",
-  "\u2004",
-  "\u2005",
-  "\u2006",
-  "\u2007",
-  "\u2008",
-  "\u2009",
-  "\u200a",
-  "\u2028",
-  "\u2029",
-  "\u202f",
-  "\u205f",
-  "\u3000",
-  "\uFEFF"
-];
-
-void expectNumEquals(num expect, num actual, String message) {
-  if (expect is double && expect.isNaN) {
-    Expect.isTrue(actual is double && actual.isNaN, "isNaN: $message");
-  } else {
-    Expect.identical(expect, actual, message);
-  }
-}
-
-// Test source surrounded by any combination of whitespace.
-void testParseAllWhitespace(String source, num result) {
-  for (String ws1 in whiteSpace) {
-    for (String ws2 in whiteSpace) {
-      String padded = "$ws1$source$ws2";
-      // Use Expect.identical because it also handles NaN and 0.0/-0.0.
-      // Except on dart2js: http://dartbug.com/11551
-      expectNumEquals(result, num.parse(padded), "parse '$padded'");
-      padded = "$ws1$ws2$source";
-      expectNumEquals(result, num.parse(padded), "parse '$padded'");
-      padded = "$source$ws1$ws2";
-      expectNumEquals(result, num.parse(padded), "parse '$padded'");
-    }
-  }
-}
-
-// Test source and -source surrounded by any combination of whitespace.
-void testParseWhitespace(String source, num result) {
-  assert(result >= 0);
-  testParseAllWhitespace(source, result);
-  testParseAllWhitespace("-$source", -result);
-}
-
-// Test parsing source, optionally preceded and/or followed by whitespace.
-void testParse(String source, num result) {
-  expectNumEquals(result, num.parse(source), "parse '$source'");
-  expectNumEquals(result, num.parse(" $source"), "parse ' $source'");
-  expectNumEquals(result, num.parse("$source "), "parse '$source '");
-  expectNumEquals(result, num.parse(" $source "), "parse ' $source '");
-}
-
-// Test parsing an integer in decimal or hex format, with or without signs.
-void testInt(int value) {
-  testParse("$value", value);
-  testParse("+$value", value);
-  testParse("-$value", -value);
-  var hex = "0x${value.toRadixString(16)}";
-  var lchex = hex.toLowerCase();
-  testParse(lchex, value);
-  testParse("+$lchex", value);
-  testParse("-$lchex", -value);
-  var uchex = hex.toUpperCase();
-  testParse(uchex, value);
-  testParse("+$uchex", value);
-  testParse("-$uchex", -value);
-}
-
-// Test parsing an integer, and the integers just around it.
-void testIntAround(int value) {
-  testInt(value - 1);
-  testInt(value);
-  testInt(value + 1);
-}
-
-void testDouble(double value) {
-  testParse("$value", value);
-  testParse("+$value", value);
-  testParse("-$value", -value);
-  if (value.isFinite) {
-    String exp = value.toStringAsExponential();
-    String lcexp = exp.toLowerCase();
-    testParse(lcexp, value);
-    testParse("+$lcexp", value);
-    testParse("-$lcexp", -value);
-    String ucexp = exp.toUpperCase();
-    testParse(ucexp, value);
-    testParse("+$ucexp", value);
-    testParse("-$ucexp", -value);
-  }
-}
-
-void testFail(String source) {
-  var object = new Object();
-  Expect.throwsFormatException(() { 
-    num.parse(source);
-  });
-}
-
-void main() {
-  testInt(0);
-  testInt(1);
-  testInt(9);
-  testInt(10);
-  testInt(99);
-  testInt(100);
-  testIntAround(256);
-  testIntAround(0x80000000); // 2^31
-  testIntAround(0x100000000); // 2^32
-  testIntAround(0x10000000000000); // 2^52
-  testIntAround(0x20000000000000); // 2^53
-  testIntAround(0x40000000000000); // 2^54
-  // 0x7ffffffffffffffe on int-is-64-bit implementations, rounded up on
-  // int-is-double implementations.
-  testIntAround(0x7ffffffffffff000 + 0xffe); // 2^63
-
-  testDouble(0.0);
-  testDouble(5e-324);
-  testDouble(2.225073858507201e-308);
-  testDouble(2.2250738585072014e-308);
-  testDouble(0.49999999999999994);
-  testDouble(0.5);
-  testDouble(0.50000000000000006);
-  testDouble(0.9999999999999999);
-  testDouble(1.0);
-  testDouble(1.0000000000000002);
-  testDouble(4294967295.0);
-  testDouble(4294967296.0);
-  testDouble(4503599627370495.5);
-  testDouble(4503599627370497.0);
-  testDouble(9007199254740991.0);
-  testDouble(9007199254740992.0);
-  testDouble(1.7976931348623157e+308);
-  testDouble(double.infinity);
-  testDouble(double.nan); //         //# 01: ok
-
-  // Strings that cannot occur from toString of a number.
-  testParse("000000000000", 0);
-  testParse("000000000001", 1);
-  testParse("000000000000.0000000000000", 0.0);
-  testParse("000000000001.0000000000000", 1.0);
-  testParse("0x0000000000", 0);
-  testParse("0e0", 0.0);
-  testParse("0e+0", 0.0);
-  testParse("0e-0", 0.0);
-  testParse("-0e0", -0.0);
-  testParse("-0e+0", -0.0);
-  testParse("-0e-0", -0.0);
-  testParse("1e0", 1.0);
-  testParse("1e+0", 1.0);
-  testParse("1e-0", 1.0);
-  testParse("-1e0", -1.0);
-  testParse("-1e+0", -1.0);
-  testParse("-1e-0", -1.0);
-  testParse("1.", 1.0);
-  testParse(".1", 0.1);
-  testParse("1.e1", 10.0);
-  testParse(".1e1", 1.0);
-
-  testParseWhitespace("0x1", 1);
-  testParseWhitespace("1", 1);
-  testParseWhitespace("1.0", 1.0);
-  testParseWhitespace("1e1", 10.0);
-  testParseWhitespace(".1e1", 1.0);
-  testParseWhitespace("1.e1", 10.0);
-  testParseWhitespace("1e+1", 10.0);
-  testParseWhitespace("1e-1", 0.1);
-
-  // Negative tests - things not to allow.
-
-  // Spaces inside the numeral.
-  testFail("- 1");
-  testFail("+ 1");
-  testFail("2 2");
-  testFail("0x 42");
-  testFail("1 .");
-  testFail(". 1");
-  testFail("1e 2");
-  testFail("1 e2");
-  // Invalid characters.
-  testFail("0x1H");
-  testFail("12H");
-  testFail("1x2");
-  testFail("00x2");
-  testFail("0x2.2");
-  // Empty hex number.
-  testFail("0x");
-  testFail("-0x");
-  testFail("+0x");
-  // Double exponent without value.
-  testFail(".e1");
-  testFail("e1");
-  testFail("e+1");
-  testFail("e-1");
-  testFail("-e1");
-  testFail("-e+1");
-  testFail("-e-1");
-  // Incorrect ways to write NaN/Infinity.
-  testFail("infinity");
-  testFail("INFINITY");
-  testFail("1.#INF");
-  testFail("inf");
-  testFail("nan");
-  testFail("NAN");
-  testFail("1.#IND");
-  testFail("indef");
-  testFail("qnan");
-  testFail("snan");
-}
diff --git a/tests/corelib_2/num_sign_test.dart b/tests/corelib_2/num_sign_test.dart
deleted file mode 100644
index e2979e40853..00000000000
--- a/tests/corelib_2/num_sign_test.dart
+++ /dev/null
@@ -1,108 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test num.clamp.
-// VMOptions=--no-use-field-guards
-// VMOptions=
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Pedestrian implementation of sign, following its specification directly.
-num sign(num value) {
-  if (value is int) {
-    if (value < 0) return -1;
-    if (value > 0) return 1;
-    return 0;
-  }
-  if (value.isNaN) return value;
-  if (value == 0.0) return value;
-  if (value > 0.0) return 1.0;
-  return -1.0;
-}
-
-var numbers = [
-  // Integers
-  0,
-  1,
-  2,
-  0x7f, //                        ~7 bits
-  0x80,
-  0xff, //                        ~8 bits
-  0x100,
-  0xffff, //                      ~16 bits
-  0x10000,
-  0x3fffffff, //                  ~30 bits (max positive 32-bit tagged smi)
-  0x40000000,
-  0x40000001,
-  0x7fffffff, //                  ~31 bits
-  0x80000000,
-  0x80000001,
-  0xfffffffff, //                 ~32 bits
-  0x100000000,
-  0x100000001,
-  0x10000000000000, //            ~53 bits
-  0x10000000000001,
-  0x1fffffffffffff,
-  0x20000000000000,
-  // Use arithmetic to construct values below since they are not valid 'web
-  // integers'. On platforms that use doubles to represent integers, there will
-  // be some rounding in the arithmetic, testing a nearby value instead.
-  0x20000000000000 + 1, //        first integer not representable as double.
-  0x20000000000000 + 2,
-  0x7ffffffffffff000 + 0xfff, //  ~63 bits
-  0x8000000000000000,
-  0x8000000000000000 + 1,
-  0xfffffffffffff000 + 0xfff, //  ~64 bits
-  // Doubles.
-  0.0,
-  5e-324, //                      min positive
-  2.225073858507201e-308, //      max denormal
-  2.2250738585072014e-308, //     min normal
-  0.49999999999999994, //         ~0.5
-  0.5,
-  0.5000000000000001,
-  0.9999999999999999, //          ~1.0
-  1.0,
-  1.0000000000000002,
-  4294967295.0, //                ~32 bits
-  4294967296.0,
-  4503599627370495.5, //          max fractional
-  4503599627370497.0,
-  9007199254740991.0,
-  9007199254740992.0, //          max exact (+1 is not a double)
-  1.7976931348623157e+308, //     max finite double
-  1.0 / 0.0, //                   Infinity
-  0.0 / 0.0, //                   NaN
-];
-
-main() {
-  for (num number in numbers) {
-    test(number);
-    test(-number);
-  }
-}
-
-void test(number) {
-  num expectSign = sign(number);
-  num actualSign = number.sign;
-  if (expectSign.isNaN) {
-    Expect.isTrue(actualSign.isNaN, "$number: $actualSign != NaN");
-  } else {
-    if (number is int) {
-      Expect.isTrue(actualSign is int, "$number.sign is int");
-    } else {
-      Expect.isTrue(actualSign is double, "$number.sign is double");
-    }
-    Expect.equals(expectSign, actualSign, "$number");
-    Expect.equals(number.isNegative, actualSign.isNegative, "$number:negative");
-    var renumber = actualSign * number.abs();
-    Expect.equals(number, renumber, "$number (sign*abs)");
-    if (number is int) {
-      Expect.isTrue(renumber is int, "$number (sign*abs) is int");
-    } else {
-      Expect.isTrue(renumber is double, "$number (sign*abs) is double");
-    }
-  }
-}
diff --git a/tests/corelib_2/num_try_parse_test.dart b/tests/corelib_2/num_try_parse_test.dart
deleted file mode 100644
index 52ad035eb3b..00000000000
--- a/tests/corelib_2/num_try_parse_test.dart
+++ /dev/null
@@ -1,224 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-const whiteSpace = const [
-  "",
-  "\x09",
-  "\x0a",
-  "\x0b",
-  "\x0c",
-  "\x0d",
-  "\xa0",
-  "\u1680",
-  "\u2000",
-  "\u2001",
-  "\u2002",
-  "\u2003",
-  "\u2004",
-  "\u2005",
-  "\u2006",
-  "\u2007",
-  "\u2008",
-  "\u2009",
-  "\u200a",
-  "\u2028",
-  "\u2029",
-  "\u202f",
-  "\u205f",
-  "\u3000",
-  "\uFEFF"
-];
-
-void expectNumEquals(num expect, num actual, String message) {
-  if (expect is double && expect.isNaN) {
-    Expect.isTrue(actual is double && actual.isNaN, "isNaN: $message");
-  } else {
-    Expect.identical(expect, actual, message);
-  }
-}
-
-// Test source surrounded by any combination of whitespace.
-void testParseAllWhitespace(String source, num result) {
-  for (String ws1 in whiteSpace) {
-    for (String ws2 in whiteSpace) {
-      String padded = "$ws1$source$ws2";
-      // Use Expect.identical because it also handles NaN and 0.0/-0.0.
-      // Except on dart2js: http://dartbug.com/11551
-      expectNumEquals(result, num.parse(padded), "parse '$padded'");
-      padded = "$ws1$ws2$source";
-      expectNumEquals(result, num.parse(padded), "parse '$padded'");
-      padded = "$source$ws1$ws2";
-      expectNumEquals(result, num.parse(padded), "parse '$padded'");
-    }
-  }
-}
-
-// Test source and -source surrounded by any combination of whitespace.
-void testParseWhitespace(String source, num result) {
-  assert(result >= 0);
-  testParseAllWhitespace(source, result);
-  testParseAllWhitespace("-$source", -result);
-}
-
-void testParse(String source, num result) {
-  expectNumEquals(result, num.tryParse(source), "parse '$source'");
-  expectNumEquals(result, num.tryParse(" $source"), "parse ' $source'");
-  expectNumEquals(result, num.tryParse("$source "), "parse '$source '");
-  expectNumEquals(result, num.tryParse(" $source "), "parse ' $source '");
-}
-
-// Test parsing an integer in decimal or hex format, with or without signs.
-void testInt(int value) {
-  testParse("$value", value);
-  testParse("+$value", value);
-  testParse("-$value", -value);
-  var hex = "0x${value.toRadixString(16)}";
-  var lchex = hex.toLowerCase();
-  testParse(lchex, value);
-  testParse("+$lchex", value);
-  testParse("-$lchex", -value);
-  var uchex = hex.toUpperCase();
-  testParse(uchex, value);
-  testParse("+$uchex", value);
-  testParse("-$uchex", -value);
-}
-
-// Test parsing an integer, and the integers just around it.
-void testIntAround(int value) {
-  testInt(value - 1);
-  testInt(value);
-  testInt(value + 1);
-}
-
-void testDouble(double value) {
-  testParse("$value", value);
-  testParse("+$value", value);
-  testParse("-$value", -value);
-  if (value.isFinite) {
-    String exp = value.toStringAsExponential();
-    String lcexp = exp.toLowerCase();
-    testParse(lcexp, value);
-    testParse("+$lcexp", value);
-    testParse("-$lcexp", -value);
-    String ucexp = exp.toUpperCase();
-    testParse(ucexp, value);
-    testParse("+$ucexp", value);
-    testParse("-$ucexp", -value);
-  }
-}
-
-void testFail(String source) {
-  Expect.isNull(num.tryParse(source));
-}
-
-void main() {
-  testInt(0);
-  testInt(1);
-  testInt(9);
-  testInt(10);
-  testInt(99);
-  testInt(100);
-  testIntAround(256);
-  testIntAround(0x80000000); // 2^31
-  testIntAround(0x100000000); // 2^32
-  testIntAround(0x10000000000000); // 2^52
-  testIntAround(0x1FFFFFFFFFFFFF); // 2^53 - 1
-
-  testDouble(0.0);
-  testDouble(5e-324);
-  testDouble(2.225073858507201e-308);
-  testDouble(2.2250738585072014e-308);
-  testDouble(0.49999999999999994);
-  testDouble(0.5);
-  testDouble(0.50000000000000006);
-  testDouble(0.9999999999999999);
-  testDouble(1.0);
-  testDouble(1.0000000000000002);
-  testDouble(4294967295.0);
-  testDouble(4294967296.0);
-  testDouble(4503599627370495.5);
-  testDouble(4503599627370497.0);
-  testDouble(9007199254740991.0);
-  testDouble(9007199254740992.0);
-  testDouble(1.7976931348623157e+308);
-  testDouble(double.infinity);
-  testDouble(double.nan);
-
-  // Strings that cannot occur from toString of a number.
-  testParse("000000000000", 0);
-  testParse("000000000001", 1);
-  testParse("000000000000.0000000000000", 0.0);
-  testParse("000000000001.0000000000000", 1.0);
-  testParse("0x0000000000", 0);
-  testParse("0e0", 0.0);
-  testParse("0e+0", 0.0);
-  testParse("0e-0", 0.0);
-  testParse("-0e0", -0.0);
-  testParse("-0e+0", -0.0);
-  testParse("-0e-0", -0.0);
-  testParse("1e0", 1.0);
-  testParse("1e+0", 1.0);
-  testParse("1e-0", 1.0);
-  testParse("-1e0", -1.0);
-  testParse("-1e+0", -1.0);
-  testParse("-1e-0", -1.0);
-  testParse("1.", 1.0);
-  testParse(".1", 0.1);
-  testParse("1.e1", 10.0);
-  testParse(".1e1", 1.0);
-
-  testParseWhitespace("0x1", 1);
-  testParseWhitespace("1", 1);
-  testParseWhitespace("1.0", 1.0);
-  testParseWhitespace("1e1", 10.0);
-  testParseWhitespace(".1e1", 1.0);
-  testParseWhitespace("1.e1", 10.0);
-  testParseWhitespace("1e+1", 10.0);
-  testParseWhitespace("1e-1", 0.1);
-
-  // Negative tests - things not to allow.
-
-  // Spaces inside the numeral.
-  testFail("- 1");
-  testFail("+ 1");
-  testFail("2 2");
-  testFail("0x 42");
-  testFail("1 .");
-  testFail(". 1");
-  testFail("1e 2");
-  testFail("1 e2");
-  // Invalid characters.
-  testFail("0x1H");
-  testFail("12H");
-  testFail("1x2");
-  testFail("00x2");
-  testFail("0x2.2");
-  // Empty hex number.
-  testFail("0x");
-  testFail("-0x");
-  testFail("+0x");
-  // Double exponent without value.
-  testFail(".e1");
-  testFail("e1");
-  testFail("e+1");
-  testFail("e-1");
-  testFail("-e1");
-  testFail("-e+1");
-  testFail("-e-1");
-  // Incorrect ways to write NaN/Infinity.
-  testFail("infinity");
-  testFail("INFINITY");
-  testFail("1.#INF");
-  testFail("inf");
-  testFail("nan");
-  testFail("NAN");
-  testFail("1.#IND");
-  testFail("indef");
-  testFail("qnan");
-  testFail("snan");
-}
diff --git a/tests/corelib_2/object_hash_test.dart b/tests/corelib_2/object_hash_test.dart
deleted file mode 100644
index c505b5c5926..00000000000
--- a/tests/corelib_2/object_hash_test.dart
+++ /dev/null
@@ -1,136 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart=2.9
-
-import "dart:math";
-import "dart:typed_data";
-
-import "package:expect/expect.dart";
-
-main() {
-  const nan = double.nan;
-  const inf = double.infinity;
-
-  int hash1234 = Object.hash(1, 2, 3, 4);
-  Expect.type<int>(hash1234);
-  Expect.equals(hash1234, Object.hash(1, 2, 3, 4)); // Consistent.
-  Expect.equals(hash1234, Object.hashAll([1, 2, 3, 4]));
-  Expect.equals(hash1234, Object.hashAll(Uint8List.fromList([1, 2, 3, 4])));
-
-  Expect.notEquals(hash1234, Object.hash(1, 2, 3, 4, null));
-
-  Expect.equals(Object.hash(1, 2, 3, 4, 5, 6, 7, 8, 9),
-      Object.hashAll([1, 2, 3, 4, 5, 6, 7, 8, 9]));
-
-  // Check that we can call `hash` with 2-20 arguments,
-  // and they all agree with `hashAll`.
-  var random = Random();
-  for (var i = 2; i <= 20; i++) {
-    var arguments = [for (var j = 0; j < i; j++) random.nextInt(256)];
-    var hashAll = Object.hashAll(arguments);
-    var hash = Function.apply(Object.hash, arguments);
-    Expect.equals(
-        hashAll,
-        hash,
-        "hashAll and hash disagrees for $i values:\n"
-        "$arguments");
-  }
-
-  // Works for all kinds of objects;
-  int varHash = Object.hash(
-      "string", 3, nan, true, null, Type, #Symbol, const Object(), function);
-  Expect.equals(
-      varHash,
-      Object.hashAll([
-        "string",
-        3,
-        nan,
-        true,
-        null,
-        Type,
-        #Symbol,
-        const Object(),
-        function
-      ]));
-
-  // Object doesn't matter, just its hash code.
-  Expect.equals(hash1234,
-      Object.hash(Hashable(1), Hashable(2), Hashable(3), Hashable(4)));
-
-  // It's potentially possible to get a conflict, but it doesn't happen here.
-  Expect.notEquals("str".hashCode, Object.hashAll(["str"]));
-
-  var hash12345 = Object.hashAllUnordered([1, 2, 3, 4, 5]);
-  for (var p in permutations([1, 2, 3, 4, 5])) {
-    Expect.equals(hash12345, Object.hashAllUnordered(p));
-  }
-  Expect.notEquals(
-      Object.hashAllUnordered(["a", "a"]), Object.hashAllUnordered(["a"]));
-
-  Expect.notEquals(Object.hashAllUnordered(["a", "a"]),
-      Object.hashAllUnordered(["a", "a", "a", "a"]));
-
-  Expect.notEquals(Object.hashAllUnordered(["a", "b"]),
-      Object.hashAllUnordered(["a", "a", "a", "b"]));
-
-  /// Unordered hashing works for all kinds of objects.
-  var unorderHash = Object.hashAllUnordered([
-    "string",
-    3,
-    nan,
-    true,
-    null,
-    Type,
-    #Symbol,
-    const Object(),
-    function,
-  ]);
-
-  var unorderHash2 = Object.hashAllUnordered([
-    true,
-    const Object(),
-    3,
-    function,
-    Type,
-    "string",
-    null,
-    nan,
-    #Symbol,
-  ]);
-  Expect.equals(unorderHash, unorderHash2);
-}
-
-/// Lazily emits all permutations of [values].
-///
-/// Modifies [values] rather than create a new list.
-/// The [values] list is guaranteed to end up in its original state
-/// after all permutations have been read.
-Iterable<List<T>> permutations<T>(List<T> values) {
-  Iterable<List<T>> recPermute(int end) sync* {
-    if (end == 1) {
-      yield values;
-      return;
-    }
-    for (var i = 0; i < end; i++) {
-      yield* recPermute(end - 1);
-      // Rotate values[i:].
-      var tmp = values.first;
-      for (var k = 1; k < end; k++) values[k - 1] = values[k];
-      values[end - 1] = tmp;
-    }
-  }
-
-  return recPermute(values.length);
-}
-
-// static function, used as constant value.
-void function() {}
-
-class Hashable {
-  final Object o;
-  Hashable(this.o);
-  bool operator ==(Object other) => other is Hashable && o == other.o;
-  int get hashCode => o.hashCode;
-}
diff --git a/tests/corelib_2/range_error_test.dart b/tests/corelib_2/range_error_test.dart
deleted file mode 100644
index 9315ea558bf..00000000000
--- a/tests/corelib_2/range_error_test.dart
+++ /dev/null
@@ -1,97 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test for testing out of range exceptions on arrays, and the content
-// of range_error toString().
-
-void main() {
-  testRead();
-  testWrite();
-  testToString();
-}
-
-void testRead() {
-  testListRead([], 0);
-  testListRead([], -1);
-  testListRead([], 1);
-
-  var list = [1];
-  testListRead(list, -1);
-  testListRead(list, 1);
-
-  list = new List.filled(1, null);
-  testListRead(list, -1);
-  testListRead(list, 1);
-
-  list = [];
-  testListRead(list, -1);
-  testListRead(list, 0);
-  testListRead(list, 1);
-}
-
-void testWrite() {
-  testListWrite([], 0);
-  testListWrite([], -1);
-  testListWrite([], 1);
-
-  var list = [1];
-  testListWrite(list, -1);
-  testListWrite(list, 1);
-
-  list = new List.filled(1, null);
-  testListWrite(list, -1);
-  testListWrite(list, 1);
-
-  list = [];
-  testListWrite(list, -1);
-  testListWrite(list, 0);
-  testListWrite(list, 1);
-}
-
-void testToString() {
-  for (var name in [null, "THENAME"]) {
-    for (var message in [null, "THEMESSAGE"]) {
-      var value = 37;
-      for (var re in [
-        new ArgumentError.value(value, name, message),
-        new RangeError.value(value, name, message),
-        new IndexError.withLength(value, 0,
-            indexable: [], name: name, message: message),
-        new RangeError.range(value, 0, 24, name, message)
-      ]) {
-        var str = re.toString();
-        if (name != null) Expect.isTrue(str.contains(name), "$name in $str");
-        if (message != null)
-          Expect.isTrue(str.contains(message), "$message in $str");
-        Expect.isTrue(str.contains("$value"), "$value in $str");
-        // No empty ':' separated parts - in that case the colon is omitted too.
-        Expect.isFalse(str.contains(new RegExp(":\s*:")));
-      }
-    }
-  }
-}
-
-void testListRead(list, index) {
-  var exception = null;
-  try {
-    var e = list[index];
-  } on RangeError catch (e) {
-    exception = e;
-  }
-  Expect.equals(true, exception != null);
-}
-
-void testListWrite(list, index) {
-  var exception = null;
-  try {
-    list[index] = null;
-  } on RangeError catch (e) {
-    exception = e;
-  }
-  Expect.equals(true, exception != null);
-}
diff --git a/tests/corelib_2/reg_exp1_test.dart b/tests/corelib_2/reg_exp1_test.dart
deleted file mode 100644
index b4105bfc318..00000000000
--- a/tests/corelib_2/reg_exp1_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing regular expressions in Dart.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class RegExp1Test {
-  static testMain() {
-    RegExp exp1 = new RegExp("bar|foo");
-    Expect.equals(true, exp1.hasMatch("foo"));
-    Expect.equals(true, exp1.hasMatch("bar"));
-    Expect.equals(false, exp1.hasMatch("gim"));
-    Expect.equals(true, exp1.hasMatch("just foo"));
-    Expect.equals("bar|foo", exp1.pattern);
-    Expect.equals(false, exp1.isMultiLine);
-    Expect.equals(true, exp1.isCaseSensitive);
-
-    RegExp exp2 = new RegExp("o+", caseSensitive: false);
-    Expect.equals(true, exp2.hasMatch("this looks good"));
-    Expect.equals(true, exp2.hasMatch("fOO"));
-    Expect.equals(false, exp2.hasMatch("bar"));
-    Expect.equals("o+", exp2.pattern);
-    Expect.equals(false, exp2.isCaseSensitive);
-    Expect.equals(false, exp2.isMultiLine);
-  }
-}
-
-main() {
-  RegExp1Test.testMain();
-}
diff --git a/tests/corelib_2/reg_exp4_test.dart b/tests/corelib_2/reg_exp4_test.dart
deleted file mode 100644
index eee1e9c98b0..00000000000
--- a/tests/corelib_2/reg_exp4_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing regular expressions in Dart.
-
-// @dart = 2.9
-
-// [NNBD non-migrated] Note: This test is specific to legacy mode and
-// deliberately does not have a counter-part in corelib/.
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.throwsArgumentError(() => new RegExp(null));
-  Expect.throwsArgumentError(() => new RegExp(r"^\w+$").hasMatch(null));
-  Expect.throwsArgumentError(() => new RegExp(r"^\w+$").firstMatch(null));
-  Expect.throwsArgumentError(() => new RegExp(r"^\w+$").allMatches(null));
-  Expect.throwsArgumentError(() => new RegExp(r"^\w+$").stringMatch(null));
-}
diff --git a/tests/corelib_2/reg_exp5_test.dart b/tests/corelib_2/reg_exp5_test.dart
deleted file mode 100644
index b6739d7aea1..00000000000
--- a/tests/corelib_2/reg_exp5_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing regular expressions in Dart.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  String str = "";
-  try {
-    RegExp ex = new RegExp(str);
-  } catch (e) {
-    if (!(e is ArgumentError)) {
-      Expect.fail("Expected: ArgumentError got: ${e}");
-    }
-  }
-  Expect.isFalse(new RegExp(r"^\w+$").hasMatch(str));
-  Match fm = new RegExp(r"^\w+$").firstMatch(str);
-  Expect.equals(null, fm);
-
-  Iterable<Match> am = new RegExp(r"^\w+$").allMatches(str);
-  Expect.isFalse(am.iterator.moveNext());
-
-  Expect.equals(null, new RegExp(r"^\w+$").stringMatch(str));
-}
diff --git a/tests/corelib_2/reg_exp_all_matches_test.dart b/tests/corelib_2/reg_exp_all_matches_test.dart
deleted file mode 100644
index bbef4f27426..00000000000
--- a/tests/corelib_2/reg_exp_all_matches_test.dart
+++ /dev/null
@@ -1,121 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test program for RegExp.allMatches.
-
-class RegExpAllMatchesTest {
-  static testIterator() {
-    var matches = new RegExp("foo").allMatches("foo foo");
-    Iterator it = matches.iterator;
-    Expect.isNull(it.current);
-    Expect.isTrue(it.moveNext());
-    Expect.equals('foo', it.current.group(0));
-    Expect.isTrue(it.moveNext());
-    Expect.equals('foo', it.current.group(0));
-    Expect.isFalse(it.moveNext());
-
-    // Run two iterators over the same results.
-    it = matches.iterator;
-    Iterator it2 = matches.iterator;
-    Expect.isTrue(it.moveNext());
-    Expect.isTrue(it2.moveNext());
-    Expect.equals('foo', it.current.group(0));
-    Expect.equals('foo', it2.current.group(0));
-    Expect.isTrue(it.moveNext());
-    Expect.isTrue(it2.moveNext());
-    Expect.equals('foo', it.current.group(0));
-    Expect.equals('foo', it2.current.group(0));
-    Expect.equals(false, it.moveNext());
-    Expect.equals(false, it2.moveNext());
-  }
-
-  static testForEach() {
-    var matches = new RegExp("foo").allMatches("foo foo");
-    var strbuf = new StringBuffer();
-    matches.forEach((Match m) {
-      strbuf.write(m.group(0));
-    });
-    Expect.equals("foofoo", strbuf.toString());
-  }
-
-  static testMap() {
-    var matches = new RegExp("foo?").allMatches("foo fo foo fo");
-    var mapped = matches.map((Match m) => "${m.group(0)}bar");
-    Expect.equals(4, mapped.length);
-    var strbuf = new StringBuffer();
-    for (String s in mapped) {
-      strbuf.write(s);
-    }
-    Expect.equals("foobarfobarfoobarfobar", strbuf.toString());
-  }
-
-  static testFilter() {
-    var matches = new RegExp("foo?").allMatches("foo fo foo fo");
-    var filtered = matches.where((Match m) {
-      return m.group(0) == 'foo';
-    });
-    Expect.equals(2, filtered.length);
-    var strbuf = new StringBuffer();
-    for (Match m in filtered) {
-      strbuf.write(m.group(0));
-    }
-    Expect.equals("foofoo", strbuf.toString());
-  }
-
-  static testEvery() {
-    var matches = new RegExp("foo?").allMatches("foo fo foo fo");
-    Expect.equals(true, matches.every((Match m) {
-      return m.group(0).startsWith("fo");
-    }));
-    Expect.equals(false, matches.every((Match m) {
-      return m.group(0).startsWith("foo");
-    }));
-  }
-
-  static testSome() {
-    var matches = new RegExp("foo?").allMatches("foo fo foo fo");
-    Expect.equals(true, matches.any((Match m) {
-      return m.group(0).startsWith("fo");
-    }));
-    Expect.equals(true, matches.any((Match m) {
-      return m.group(0).startsWith("foo");
-    }));
-    Expect.equals(false, matches.any((Match m) {
-      return m.group(0).startsWith("fooo");
-    }));
-  }
-
-  static testIsEmpty() {
-    var matches = new RegExp("foo?").allMatches("foo fo foo fo");
-    Expect.equals(false, matches.isEmpty);
-    matches = new RegExp("fooo").allMatches("foo fo foo fo");
-    Expect.equals(true, matches.isEmpty);
-  }
-
-  static testGetCount() {
-    var matches = new RegExp("foo?").allMatches("foo fo foo fo");
-    Expect.equals(4, matches.length);
-    matches = new RegExp("fooo").allMatches("foo fo foo fo");
-    Expect.equals(0, matches.length);
-  }
-
-  static testMain() {
-    testIterator();
-    testForEach();
-    testMap();
-    testFilter();
-    testEvery();
-    testSome();
-    testIsEmpty();
-    testGetCount();
-  }
-}
-
-main() {
-  RegExpAllMatchesTest.testMain();
-}
diff --git a/tests/corelib_2/reg_exp_cache_test.dart b/tests/corelib_2/reg_exp_cache_test.dart
deleted file mode 100644
index 66765654980..00000000000
--- a/tests/corelib_2/reg_exp_cache_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Runs several similar regexps in a loop to see if an internal cache works (at
-// least in easy conditions).
-
-import "package:expect/expect.dart";
-
-void main() {
-  for (int j = 1; j < 50; j += 4) {
-    for (int i = 0; i < 15 * j; i++) {
-      var regExp = new RegExp("foo$i");
-      var match = regExp.firstMatch("foo$i");
-      Expect.isNotNull(match);
-      Expect.equals("foo$i", match[0]);
-    }
-  }
-}
diff --git a/tests/corelib_2/reg_exp_first_match_test.dart b/tests/corelib_2/reg_exp_first_match_test.dart
deleted file mode 100644
index 48d6a31ef68..00000000000
--- a/tests/corelib_2/reg_exp_first_match_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test program for RegExp.firstMatch.
-
-class RegExpFirstMatchTest {
-  static testMain() {
-    Expect.equals('cat', new RegExp("(\\w+)").firstMatch("cat dog")[0]);
-    Expect.equals(null, new RegExp("foo").firstMatch("bar"));
-  }
-}
-
-main() {
-  RegExpFirstMatchTest.testMain();
-}
diff --git a/tests/corelib_2/reg_exp_group_test.dart b/tests/corelib_2/reg_exp_group_test.dart
deleted file mode 100644
index fe03c9f0b68..00000000000
--- a/tests/corelib_2/reg_exp_group_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test program for RegExp.group.
-
-class RegExpGroupTest {
-  static testMain() {
-    var match = new RegExp("(a(b)((c|de)+))").firstMatch("abcde");
-    Expect.equals('abcde', match.group(0));
-    Expect.equals('abcde', match.group(1));
-    Expect.equals('b', match.group(2));
-    Expect.equals('cde', match[3]);
-    Expect.equals('de', match[4]);
-  }
-}
-
-main() {
-  RegExpGroupTest.testMain();
-}
diff --git a/tests/corelib_2/reg_exp_groups_test.dart b/tests/corelib_2/reg_exp_groups_test.dart
deleted file mode 100644
index a6d4fbf8e08..00000000000
--- a/tests/corelib_2/reg_exp_groups_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test program for RegExp.groups.
-
-class RegExpGroupsTest {
-  static testMain() {
-    var match = new RegExp("(a(b)((c|de)+))").firstMatch("abcde");
-    var groups = match.groups([0, 4, 2, 3]);
-    Expect.equals('abcde', groups[0]);
-    Expect.equals('de', groups[1]);
-    Expect.equals('b', groups[2]);
-    Expect.equals('cde', groups[3]);
-  }
-}
-
-main() {
-  RegExpGroupsTest.testMain();
-}
diff --git a/tests/corelib_2/reg_exp_has_match_test.dart b/tests/corelib_2/reg_exp_has_match_test.dart
deleted file mode 100644
index e11abfabceb..00000000000
--- a/tests/corelib_2/reg_exp_has_match_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test program for RegExp.hasMatch.
-
-class RegExpHasMatchTest {
-  static testMain() {
-    Expect.equals(false, new RegExp("bar").hasMatch("foo"));
-    Expect.equals(true, new RegExp("bar|foo").hasMatch("foo"));
-    Expect.equals(true, new RegExp("o+").hasMatch("foo"));
-  }
-}
-
-main() {
-  RegExpHasMatchTest.testMain();
-}
diff --git a/tests/corelib_2/reg_exp_pattern_test.dart b/tests/corelib_2/reg_exp_pattern_test.dart
deleted file mode 100644
index 5fa672a7fe5..00000000000
--- a/tests/corelib_2/reg_exp_pattern_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing regular expressions in Dart.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Regression test for http://dartbug.com/17998
-
-main() {
-  for (var s in [
-    r"a",
-    r"a|b",
-    r"(?:)",
-    r"^",
-    r"$",
-    r"^$",
-    r"$^",
-    r"",
-    r"\\",
-    r"/",
-    r"[^]",
-    "\x00",
-  ]) {
-    Expect.equals(s, new RegExp(s).pattern);
-  }
-}
diff --git a/tests/corelib_2/reg_exp_receive_port_test.dart b/tests/corelib_2/reg_exp_receive_port_test.dart
deleted file mode 100644
index a63f289b867..00000000000
--- a/tests/corelib_2/reg_exp_receive_port_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Checks that you can send and receive regex in a message.
-
-import "dart:async";
-import "dart:isolate";
-
-import "package:async_helper/async_helper.dart";
-import "package:expect/expect.dart";
-
-main(args) async {
-  asyncStart();
-  final rp = ReceivePort();
-  final r = RegExp('b');
-  final match = r.firstMatch('bb');
-  Expect.equals(match != null ? match.start : null, 0);
-  rp.sendPort.send(r);
-
-  final si = StreamIterator(rp);
-  await si.moveNext();
-  final x = si.current as RegExp;
-  final matchX = x.firstMatch('bb');
-  Expect.equals(matchX != null ? matchX.start : null, 0);
-  rp.close();
-  asyncEnd();
-}
diff --git a/tests/corelib_2/reg_exp_start_end_test.dart b/tests/corelib_2/reg_exp_start_end_test.dart
deleted file mode 100644
index f9c1b377887..00000000000
--- a/tests/corelib_2/reg_exp_start_end_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  var matches = new RegExp("(a(b)((c|de)+))").allMatches("abcde abcde abcde");
-  var it = matches.iterator;
-  int start = 0;
-  int end = 5;
-  while (it.moveNext()) {
-    Match match = it.current;
-    Expect.equals(start, match.start);
-    Expect.equals(end, match.end);
-    start += 6;
-    end += 6;
-  }
-}
diff --git a/tests/corelib_2/reg_exp_string_match_test.dart b/tests/corelib_2/reg_exp_string_match_test.dart
deleted file mode 100644
index b56173eaabc..00000000000
--- a/tests/corelib_2/reg_exp_string_match_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test program for RegExp.stringMatch.
-
-class RegExpStringMatchTest {
-  static testMain() {
-    Expect.equals('cat', new RegExp("(\\w+)").stringMatch("cat dog"));
-    Expect.equals(null, new RegExp("foo").stringMatch("bar"));
-  }
-}
-
-main() {
-  RegExpStringMatchTest.testMain();
-}
diff --git a/tests/corelib_2/regexp/UC16_test.dart b/tests/corelib_2/regexp/UC16_test.dart
deleted file mode 100644
index 413da283299..00000000000
--- a/tests/corelib_2/regexp/UC16_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2008 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  // UC16
-  // Characters used:
-  // "\u03a3\u03c2\u03c3\u039b\u03bb" - Sigma, final sigma, sigma, Lambda,
-  // lambda
-  shouldBe(
-      new RegExp(r"x(.)\1x", caseSensitive: false).firstMatch("x\u03a3\u03c3x"),
-      ["x\u03a3\u03c3x", "\u03a3"],
-      "backref-UC16");
-  assertFalse(
-      new RegExp(r"x(...)\1", caseSensitive: false)
-          .hasMatch("x\u03a3\u03c2\u03c3\u03c2\u03c3"),
-      "\1 ASCII, string short");
-  assertTrue(
-      new RegExp(r"\u03a3((?:))\1\1x", caseSensitive: false)
-          .hasMatch("\u03c2x"),
-      "backref-UC16-empty");
-  assertTrue(
-      new RegExp(r"x(?:...|(...))\1x", caseSensitive: false)
-          .hasMatch("x\u03a3\u03c2\u03c3x"),
-      "backref-UC16-uncaptured");
-  assertTrue(
-      new RegExp(r"x(?:...|(...))\1x", caseSensitive: false)
-          .hasMatch("x\u03c2\u03c3\u039b\u03a3\u03c2\u03bbx"),
-      "backref-UC16-backtrack");
-  var longUC16String =
-      "x\u03a3\u03c2\u039b\u03c2\u03c3\u03bb\u03c3\u03a3\u03bb";
-  shouldBe(
-      new RegExp(r"x(...)\1\1", caseSensitive: false)
-          .firstMatch(longUC16String),
-      [longUC16String, longUC16String.substring(1, 4)],
-      "backref-UC16-twice");
-
-  assertFalse(new RegExp(r"\xc1", caseSensitive: false).hasMatch('fooA'),
-      "quickcheck-uc16-pattern-ascii-subject");
-  assertFalse(new RegExp(r"[\xe9]").hasMatch('i'),
-      "charclass-uc16-pattern-ascii-subject");
-  assertFalse(new RegExp(r"\u5e74|\u6708").hasMatch('t'),
-      "alternation-uc16-pattern-ascii-subject");
-}
diff --git a/tests/corelib_2/regexp/alternative-length-miscalculation_test.dart b/tests/corelib_2/regexp/alternative-length-miscalculation_test.dart
deleted file mode 100644
index 9b6b9c8ad59..00000000000
--- a/tests/corelib_2/regexp/alternative-length-miscalculation_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description(
-      "This page tests for length miscalculations in regular expression processing.");
-
-  var re = new RegExp(r"b|[^b]");
-  assertEquals('a'.indexOf(re, 1), -1);
-
-  var re2 = new RegExp(r"[^a]|ab");
-  shouldBeFalse(re2.hasMatch(''));
-}
diff --git a/tests/corelib_2/regexp/alternatives_test.dart b/tests/corelib_2/regexp/alternatives_test.dart
deleted file mode 100644
index c98bfbda6f3..00000000000
--- a/tests/corelib_2/regexp/alternatives_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description('Test regular expression processing with alternatives.');
-
-  var s1 = "<p>content</p>";
-  shouldBe(firstMatch(s1, new RegExp(r"<((\\/([^>]+)>)|(([^>]+)>))")),
-      ["<p>", "p>", null, null, "p>", "p"]);
-  shouldBe(firstMatch(s1, new RegExp(r"<((ABC>)|(\\/([^>]+)>)|(([^>]+)>))")),
-      ["<p>", "p>", null, null, null, "p>", "p"]);
-  shouldBe(firstMatch(s1, new RegExp(r"<(a|\\/p|.+?)>")), ["<p>", "p"]);
-
-  // Force YARR to use Interpreter by using iterative parentheses
-  shouldBe(firstMatch(s1, new RegExp(r"<((\\/([^>]+)>)|((([^>])+)>))")),
-      ["<p>", "p>", null, null, "p>", "p", "p"]);
-  shouldBe(firstMatch(s1, new RegExp(r"<((ABC>)|(\\/([^>]+)>)|((([^>])+)>))")),
-      ["<p>", "p>", null, null, null, "p>", "p", "p"]);
-  shouldBe(firstMatch(s1, new RegExp(r"<(a|\\/p|(.)+?)>")), ["<p>", "p", "p"]);
-
-  // Force YARR to use Interpreter by using backreference
-  var s2 = "<p>p</p>";
-  shouldBe(firstMatch(s2, new RegExp(r"<((\\/([^>]+)>)|(([^>]+)>))\5")),
-      ["<p>p", "p>", null, null, "p>", "p"]);
-  shouldBe(firstMatch(s2, new RegExp(r"<((ABC>)|(\\/([^>]+)>)|(([^>]+)>))\6")),
-      ["<p>p", "p>", null, null, null, "p>", "p"]);
-  shouldBe(firstMatch(s2, new RegExp(r"<(a|\\/p|.+?)>\1")), ["<p>p", "p"]);
-}
diff --git a/tests/corelib_2/regexp/ascii-regexp-subject_test.dart b/tests/corelib_2/regexp/ascii-regexp-subject_test.dart
deleted file mode 100644
index 80cb099d0ee..00000000000
--- a/tests/corelib_2/regexp/ascii-regexp-subject_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2008 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-/**
-* @fileoverview Check that an initial ^ will result in a faster match fail.
-*/
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  var s = "foo";
-  var i;
-
-  for (i = 0; i < 18; i++) {
-    s = s + s;
-  }
-
-  dynamic repeatRegexp(re) {
-    for (i = 0; i < 1000; i++) {
-      re.hasMatch(s);
-    }
-  }
-
-  repeatRegexp(new RegExp(r"^bar"));
-  repeatRegexp(new RegExp(r"^foo|^bar|^baz"));
-  repeatRegexp(new RegExp(r"(^bar)"));
-  repeatRegexp(new RegExp(r"(?=^bar)\w+"));
-}
diff --git a/tests/corelib_2/regexp/assertion_test.dart b/tests/corelib_2/regexp/assertion_test.dart
deleted file mode 100644
index 10212dd482b..00000000000
--- a/tests/corelib_2/regexp/assertion_test.dart
+++ /dev/null
@@ -1,119 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description("This page tests handling of parenthetical assertions.");
-
-  var regex1 = new RegExp(r"(x)(?=\1)x");
-  shouldBe(regex1.firstMatch('xx'), ['xx', 'x']);
-
-  var regex2 = new RegExp(r"(.*?)a(?!(a+)b\2c)\2(.*)");
-  shouldBe(regex2.firstMatch('baaabaac'), ['baaabaac', 'ba', null, 'abaac']);
-
-  var regex3 = new RegExp(r"(?=(a+?))(\1ab)");
-  shouldBe(regex3.firstMatch('aaab'), ['aab', 'a', 'aab']);
-
-  var regex4 = new RegExp(r"(?=(a+?))(\1ab)");
-  shouldBe(regex4.firstMatch('aaab'), ['aab', 'a', 'aab']);
-
-  var regex5 = new RegExp(r"^P([1-6])(?=\1)([1-6])$");
-  shouldBe(regex5.firstMatch('P11'), ['P11', '1', '1']);
-
-  var regex6 = new RegExp(r"(([a-c])b*?\2)*");
-  shouldBe(regex6.firstMatch('ababbbcbc'), ['ababb', 'bb', 'b']);
-
-  var regex7 = new RegExp(r"(x)(?=x)x");
-  shouldBe(regex7.firstMatch('xx'), ['xx', 'x']);
-
-  var regex8 = new RegExp(r"(x)(\1)");
-  shouldBe(regex8.firstMatch('xx'), ['xx', 'x', 'x']);
-
-  var regex9 = new RegExp(r"(x)(?=\1)x");
-  shouldBeNull(regex9.firstMatch('xy'));
-
-  var regex10 = new RegExp(r"(x)(?=x)x");
-  shouldBeNull(regex10.firstMatch('xy'));
-
-  var regex11 = new RegExp(r"(x)(\1)");
-  shouldBeNull(regex11.firstMatch('xy'));
-
-  var regex12 = new RegExp(r"(x)(?=\1)x");
-  shouldBeNull(regex12.firstMatch('x'));
-  shouldBe(regex12.firstMatch('xx'), ['xx', 'x']);
-  shouldBe(regex12.firstMatch('xxy'), ['xx', 'x']);
-
-  var regex13 = new RegExp(r"(x)zzz(?=\1)x");
-  shouldBe(regex13.firstMatch('xzzzx'), ['xzzzx', 'x']);
-  shouldBe(regex13.firstMatch('xzzzxy'), ['xzzzx', 'x']);
-
-  var regex14 = new RegExp(r"(a)\1(?=(b*c))bc");
-  shouldBe(regex14.firstMatch('aabc'), ['aabc', 'a', 'bc']);
-  shouldBe(regex14.firstMatch('aabcx'), ['aabc', 'a', 'bc']);
-
-  var regex15 = new RegExp(r"(a)a(?=(b*c))bc");
-  shouldBe(regex15.firstMatch('aabc'), ['aabc', 'a', 'bc']);
-  shouldBe(regex15.firstMatch('aabcx'), ['aabc', 'a', 'bc']);
-
-  var regex16 = new RegExp(r"a(?=(b*c))bc");
-  shouldBeNull(regex16.firstMatch('ab'));
-  shouldBe(regex16.firstMatch('abc'), ['abc', 'bc']);
-
-  var regex17 = new RegExp(r"(?=((?:ab)*))a");
-  shouldBe(regex17.firstMatch('ab'), ['a', 'ab']);
-  shouldBe(regex17.firstMatch('abc'), ['a', 'ab']);
-
-  var regex18 = new RegExp(r"(?=((?:xx)*))x");
-  shouldBe(regex18.firstMatch('x'), ['x', '']);
-  shouldBe(regex18.firstMatch('xx'), ['x', 'xx']);
-  shouldBe(regex18.firstMatch('xxx'), ['x', 'xx']);
-
-  var regex19 = new RegExp(r"(?=((xx)*))x");
-  shouldBe(regex19.firstMatch('x'), ['x', '', null]);
-  shouldBe(regex19.firstMatch('xx'), ['x', 'xx', 'xx']);
-  shouldBe(regex19.firstMatch('xxx'), ['x', 'xx', 'xx']);
-
-  var regex20 = new RegExp(r"(?=(xx))+x");
-  shouldBeNull(regex20.firstMatch('x'));
-  shouldBe(regex20.firstMatch('xx'), ['x', 'xx']);
-  shouldBe(regex20.firstMatch('xxx'), ['x', 'xx']);
-
-  var regex21 = new RegExp(r"(?=a+b)aab");
-  shouldBe(regex21.firstMatch('aab'), ['aab']);
-
-  var regex22 = new RegExp(
-      r"(?!(u|m{0,}g+)u{1,}|2{2,}!1%n|(?!K|(?=y)|(?=ip))+?)(?=(?=(((?:7))*?)*?))p",
-      multiLine: true);
-  shouldBeNull(regex22.firstMatch('55up'));
-
-  var regex23 = new RegExp(r"(?=(a)b|c?)()*d");
-  shouldBeNull(regex23.firstMatch('ax'));
-
-  var regex24 = new RegExp(r"(?=a|b?)c");
-  shouldBeNull(regex24.firstMatch('x'));
-}
diff --git a/tests/corelib_2/regexp/backreferences_test.dart b/tests/corelib_2/regexp/backreferences_test.dart
deleted file mode 100644
index 9aa7f23df70..00000000000
--- a/tests/corelib_2/regexp/backreferences_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description(
-      "Test to ensure correct behaviour when using backreferences in a RegExp");
-
-  shouldBeTrue(new RegExp(r"(...)\1$").hasMatch('abcabc'));
-  shouldBeFalse(new RegExp(r"(...)\1$").hasMatch('abcdef'));
-  shouldBeFalse(new RegExp(r"(...)\2$").hasMatch('abcabc'));
-  shouldBeFalse(new RegExp(r"(...)\2$").hasMatch('abc'));
-  shouldBeTrue(new RegExp(r"\1(...)$").hasMatch('abcabc'));
-  shouldBeTrue(new RegExp(r"\1(...)$").hasMatch('abcdef'));
-  shouldBeFalse(new RegExp(r"\2(...)$").hasMatch('abcabc'));
-  shouldBeFalse(new RegExp(r"\2(...)$").hasMatch('abc'));
-  shouldBeTrue(new RegExp(r"\1?(...)$").hasMatch('abc'));
-  shouldBeTrue(new RegExp(r"\1?(...)$").hasMatch('abc'));
-
-  var re = new RegExp(r"[^b]*((..)|(\2))+Sz", caseSensitive: false);
-
-  shouldBeFalse(re.hasMatch('axabcd'));
-  shouldBeTrue(re.hasMatch('axabcsz'));
-}
diff --git a/tests/corelib_2/regexp/bol-with-multiline_test.dart b/tests/corelib_2/regexp/bol-with-multiline_test.dart
deleted file mode 100644
index 20d287e1a8d..00000000000
--- a/tests/corelib_2/regexp/bol-with-multiline_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description(
-      'Test for beginning of line (BOL or ^) matching in a multiline string</a>');
-
-  var s = "aced\nabc";
-  shouldBeNull(firstMatch(s, new RegExp(r"^abc")));
-  shouldBe(firstMatch(s, new RegExp(r"^abc", multiLine: true)), ["abc"]);
-  shouldBeNull(firstMatch(s, new RegExp(r"(^|X)abc")));
-  shouldBe(
-      firstMatch(s, new RegExp(r"(^|X)abc", multiLine: true)), ["abc", ""]);
-  shouldBe(
-      firstMatch(s, new RegExp(r"(^a|Xa)bc", multiLine: true)), ["abc", "a"]);
-}
diff --git a/tests/corelib_2/regexp/bol_test.dart b/tests/corelib_2/regexp/bol_test.dart
deleted file mode 100644
index 8cfc530f811..00000000000
--- a/tests/corelib_2/regexp/bol_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description('Test for beginning of line (BOL or ^) matching</a>');
-
-  var s = "abc123def456xyzabc789abc999";
-  shouldBeNull(firstMatch(s, new RegExp(r"^notHere")));
-  shouldBe(firstMatch(s, new RegExp(r"^abc")), ["abc"]);
-  shouldBe(firstMatch(s, new RegExp(r"(^|X)abc")), ["abc", ""]);
-  shouldBe(firstMatch(s, new RegExp(r"^longer|123")), ["123"]);
-  shouldBe(firstMatch(s, new RegExp(r"(^abc|c)123")), ["abc123", "abc"]);
-  shouldBe(firstMatch(s, new RegExp(r"(c|^abc)123")), ["abc123", "abc"]);
-  shouldBe(firstMatch(s, new RegExp(r"(^ab|abc)123")), ["abc123", "abc"]);
-  shouldBe(firstMatch(s, new RegExp(r"(bc|^abc)([0-9]*)a")),
-      ["bc789a", "bc", "789"]);
-  shouldBeNull(new RegExp(r"(?:(Y)X)|(X)").firstMatch("abc"));
-  shouldBeNull(new RegExp(r"(?:(?:^|Y)X)|(X)").firstMatch("abc"));
-  shouldBeNull(new RegExp(r"(?:(?:^|Y)X)|(X)").firstMatch("abcd"));
-  shouldBe(new RegExp(r"(?:(?:^|Y)X)|(X)").firstMatch("Xabcd"), ["X", null]);
-  shouldBe(new RegExp(r"(?:(?:^|Y)X)|(X)").firstMatch("aXbcd"), ["X", "X"]);
-  shouldBe(new RegExp(r"(?:(?:^|Y)X)|(X)").firstMatch("abXcd"), ["X", "X"]);
-  shouldBe(new RegExp(r"(?:(?:^|Y)X)|(X)").firstMatch("abcXd"), ["X", "X"]);
-  shouldBe(new RegExp(r"(?:(?:^|Y)X)|(X)").firstMatch("abcdX"), ["X", "X"]);
-  shouldBe(new RegExp(r"(?:(?:^|Y)X)|(X)").firstMatch("YXabcd"), ["YX", null]);
-  shouldBe(new RegExp(r"(?:(?:^|Y)X)|(X)").firstMatch("aYXbcd"), ["YX", null]);
-  shouldBe(new RegExp(r"(?:(?:^|Y)X)|(X)").firstMatch("abYXcd"), ["YX", null]);
-  shouldBe(new RegExp(r"(?:(?:^|Y)X)|(X)").firstMatch("abcYXd"), ["YX", null]);
-  shouldBe(new RegExp(r"(?:(?:^|Y)X)|(X)").firstMatch("abcdYX"), ["YX", null]);
-}
diff --git a/tests/corelib_2/regexp/capture-3_test.dart b/tests/corelib_2/regexp/capture-3_test.dart
deleted file mode 100644
index ee26d42d604..00000000000
--- a/tests/corelib_2/regexp/capture-3_test.dart
+++ /dev/null
@@ -1,132 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2009 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  dynamic oneMatch(re) {
-    assertEquals("acd", "abcd".replaceAll(re, ""));
-  }
-
-  oneMatch(new RegExp(r"b"));
-  oneMatch(new RegExp(r"b"));
-
-  assertEquals("acdacd", "abcdabcd".replaceAll(new RegExp(r"b"), ""));
-
-  dynamic captureMatch(re) {
-    var match = firstMatch("abcd", re);
-    assertEquals("b", match.group(1));
-    assertEquals("c", match.group(2));
-  }
-
-  captureMatch(new RegExp(r"(b)(c)"));
-  captureMatch(new RegExp(r"(b)(c)"));
-
-  // A test that initially does a zero width match, but later does a non-zero
-  // width match.
-  var a = "foo bar baz".replaceAll(new RegExp(r"^|bar"), "");
-  assertEquals("foo  baz", a);
-
-  a = "foo bar baz".replaceAll(new RegExp(r"^|bar"), "*");
-  assertEquals("*foo * baz", a);
-
-  // We test FilterASCII using regexps that will backtrack forever.  Since
-  // a regexp with a non-ASCII character in it can never match an ASCII
-  // string we can test that the relevant node is removed by verifying that
-  // there is no hang.
-  dynamic NoHang(re) {
-    firstMatch("This is an ASCII string that could take forever", re);
-  }
-
-  NoHang(new RegExp(
-      r"(((.*)*)*x)Ā")); // Continuation after loop is filtered, so is loop.
-  NoHang(new RegExp(r"(((.*)*)*Ā)foo")); // Body of loop filtered.
-  NoHang(new RegExp(
-      r"Ā(((.*)*)*x)")); // Everything after a filtered character is filtered.
-  NoHang(new RegExp(
-      r"(((.*)*)*x)Ā")); // Everything before a filtered character is filtered.
-  NoHang(new RegExp(
-      r"[ćăĀ](((.*)*)*x)")); // Everything after a filtered class is filtered.
-  NoHang(new RegExp(
-      r"(((.*)*)*x)[ćăĀ]")); // Everything before a filtered class is filtered.
-  NoHang(new RegExp(r"[^\x00-\xff](((.*)*)*x)")); // After negated class.
-  NoHang(new RegExp(r"(((.*)*)*x)[^\x00-\xff]")); // Before negated class.
-  NoHang(new RegExp(r"(?!(((.*)*)*x)Ā)foo")); // Negative lookahead is filtered.
-  NoHang(new RegExp(
-      r"(?!(((.*)*)*x))Ā")); // Continuation branch of negative lookahead.
-  NoHang(new RegExp(r"(?=(((.*)*)*x)Ā)foo")); // Positive lookahead is filtered.
-  NoHang(new RegExp(
-      r"(?=(((.*)*)*x))Ā")); // Continuation branch of positive lookahead.
-  NoHang(new RegExp(
-      r"(?=Ā)(((.*)*)*x)")); // Positive lookahead also prunes continuation.
-  NoHang(new RegExp(
-      r"(æ|ø|Ā)(((.*)*)*x)")); // All branches of alternation are filtered.
-  NoHang(new RegExp(r"(a|b|(((.*)*)*x))Ā")); // 1 out of 3 branches pruned.
-  NoHang(new RegExp(
-      r"(a|(((.*)*)*x)ă|(((.*)*)*x)Ā)")); // 2 out of 3 branches pruned.
-
-  var s = "Don't prune based on a repetition of length 0";
-  assertEquals(null, firstMatch(s, new RegExp(r"å{1,1}prune")));
-  assertEquals("prune", (firstMatch(s, new RegExp(r"å{0,0}prune"))[0]));
-
-  // Some very deep regexps where FilterASCII gives up in order not to make the
-  // stack overflow.
-  var regex6 = new RegExp(r"a*\u0100*\w");
-  var input0 = "a";
-  regex6.firstMatch(input0);
-
-  var re = "\u0100*\\w";
-
-  for (var i = 0; i < 200; i++) re = "a*" + re;
-
-  var regex7 = new RegExp(re);
-  regex7.firstMatch(input0);
-
-  var regex8 = new RegExp(re, caseSensitive: false);
-  regex8.firstMatch(input0);
-
-  re = "[\u0100]*\\w";
-  for (var i = 0; i < 200; i++) re = "a*" + re;
-
-  var regex9 = new RegExp(re);
-  regex9.firstMatch(input0);
-
-  var regex10 = new RegExp(re, caseSensitive: false);
-  regex10.firstMatch(input0);
-
-  var regex11 = new RegExp(r"^(?:[^\u0000-\u0080]|[0-9a-z?,.!&\s#()])+$",
-      caseSensitive: false);
-  regex11.firstMatch(input0);
-
-  var regex12 = new RegExp(
-      r"u(\xf0{8}?\D*?|( ? !)$h??(|)*?(||)+?\6((?:\W\B|--\d-*-|)?$){0, }?|^Y( ? !1)\d+)+a");
-  regex12.firstMatch("");
-}
diff --git a/tests/corelib_2/regexp/capture_test.dart b/tests/corelib_2/regexp/capture_test.dart
deleted file mode 100644
index f0020ae1a20..00000000000
--- a/tests/corelib_2/regexp/capture_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2009 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  // Tests from http://blog.stevenlevithan.com/archives/npcg-javascript
-
-  assertEquals(true, new RegExp(r"(x)?\1y").hasMatch("y"));
-  shouldBe(new RegExp(r"(x)?\1y").firstMatch("y"), ["y", null]);
-  shouldBe(new RegExp(r"(x)?y").firstMatch("y"), ["y", null]);
-  shouldBe(firstMatch("y", new RegExp(r"(x)?\1y")), ["y", null]);
-  shouldBe(firstMatch("y", new RegExp(r"(x)?y")), ["y", null]);
-  shouldBe(firstMatch("y", new RegExp(r"(x)?\1y")), ["y", null]);
-  Expect.listEquals(["", ""], "y".split(new RegExp(r"(x)?\1y")));
-  Expect.listEquals(["", ""], "y".split(new RegExp(r"(x)?y")));
-  assertEquals(0, "y".indexOf(new RegExp(r"(x)?\1y")));
-  assertEquals("z", "y".replaceAll(new RegExp(r"(x)?\1y"), "z"));
-
-  // See https://bugzilla.mozilla.org/show_bug.cgi?id=476146
-  shouldBe(new RegExp(r"^(b+|a){1,2}?bc").firstMatch("bbc"), ["bbc", "b"]);
-  shouldBe(
-      new RegExp(r"((\3|b)\2(a)){2,}").firstMatch("bbaababbabaaaaabbaaaabba"),
-      ["bbaa", "a", "", "a"]);
-
-  // From crbug.com/128821 - don't hang:
-  firstMatch(
-      "",
-      new RegExp(
-          r"((a|i|A|I|u|o|U|O)(s|c|b|c|d|f|g|h|j|k|l|m|n|p|q|r|s|t|v|w|x|y|z|B|C|D|F|G|H|J|K|L|M|N|P|Q|R|S|T|V|W|X|Y|Z)*) de\/da([.,!?\s]|$)"));
-}
diff --git a/tests/corelib_2/regexp/captures_test.dart b/tests/corelib_2/regexp/captures_test.dart
deleted file mode 100644
index 9e4c896f443..00000000000
--- a/tests/corelib_2/regexp/captures_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2009 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  var re = new RegExp(
-      r"^(((N({)?)|(R)|(U)|(V)|(B)|(H)|(n((n)|(r)|(v)|(h))?)|(r(r)?)|(v)|(b((n)|(b))?)|(h))|((Y)|(A)|(E)|(o(u)?)|(p(u)?)|(q(u)?)|(s)|(t)|(u)|(w)|(x(u)?)|(y)|(z)|(a((T)|(A)|(L))?)|(c)|(e)|(f(u)?)|(g(u)?)|(i)|(j)|(l)|(m(u)?)))+");
-  var str = "Avtnennan gunzvmu pubExnY nEvln vaTxh rmuhguhaTxnY";
-  assertTrue(re.hasMatch(str));
-}
diff --git a/tests/corelib_2/regexp/char-insensitive_test.dart b/tests/corelib_2/regexp/char-insensitive_test.dart
deleted file mode 100644
index 38fe63ec1a0..00000000000
--- a/tests/corelib_2/regexp/char-insensitive_test.dart
+++ /dev/null
@@ -1,70 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description(
-      "This test checks the case-insensitive matching of character literals.");
-
-  shouldBeTrue(new RegExp(r"\u00E5", caseSensitive: false)
-      .hasMatch('new RegExp(r"\u00E5")'));
-  shouldBeTrue(new RegExp(r"\u00E5", caseSensitive: false)
-      .hasMatch('new RegExp(r"\u00C5")'));
-  shouldBeTrue(new RegExp(r"\u00C5", caseSensitive: false)
-      .hasMatch('new RegExp(r"\u00E5")'));
-  shouldBeTrue(new RegExp(r"\u00C5", caseSensitive: false)
-      .hasMatch('new RegExp(r"\u00C5")'));
-
-  shouldBeFalse(new RegExp(r"\u00E5", caseSensitive: false).hasMatch('P'));
-  shouldBeFalse(new RegExp(r"\u00E5", caseSensitive: false).hasMatch('PASS'));
-  shouldBeFalse(new RegExp(r"\u00C5", caseSensitive: false).hasMatch('P'));
-  shouldBeFalse(new RegExp(r"\u00C5", caseSensitive: false).hasMatch('PASS'));
-
-  shouldBeNull(firstMatch('PASS', new RegExp(r"\u00C5", caseSensitive: false)));
-  shouldBeNull(firstMatch('PASS', new RegExp(r"\u00C5", caseSensitive: false)));
-
-  assertEquals(
-      'PAS\u00E5'.replaceAll(new RegExp(r"\u00E5", caseSensitive: false), 'S'),
-      'PASS');
-  assertEquals(
-      'PAS\u00E5'.replaceAll(new RegExp(r"\u00C5", caseSensitive: false), 'S'),
-      'PASS');
-  assertEquals(
-      'PAS\u00C5'.replaceAll(new RegExp(r"\u00E5", caseSensitive: false), 'S'),
-      'PASS');
-  assertEquals(
-      'PAS\u00C5'.replaceAll(new RegExp(r"\u00C5", caseSensitive: false), 'S'),
-      'PASS');
-
-  assertEquals(
-      'PASS'.replaceAll(new RegExp(r"\u00E5", caseSensitive: false), '%C3%A5'),
-      'PASS');
-  assertEquals(
-      'PASS'.replaceAll(new RegExp(r"\u00C5", caseSensitive: false), '%C3%A5'),
-      'PASS');
-}
diff --git a/tests/corelib_2/regexp/character-match-out-of-order_test.dart b/tests/corelib_2/regexp/character-match-out-of-order_test.dart
deleted file mode 100644
index 65269f8fbb4..00000000000
--- a/tests/corelib_2/regexp/character-match-out-of-order_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description(
-      'Test to ensure RegExp generates single character matches in the correct order');
-
-  shouldBe(new RegExp(r"[\w']+").firstMatch("'_'"), ["'_'"]);
-}
diff --git a/tests/corelib_2/regexp/compile-crash_test.dart b/tests/corelib_2/regexp/compile-crash_test.dart
deleted file mode 100644
index b677a24f4c8..00000000000
--- a/tests/corelib_2/regexp/compile-crash_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description(
-      'Test regexp compiling to make sure it doens\'t crash like bug <a href="https://bugs.webkit.org/show_bug.cgi?id=16127">16127</a>');
-
-  shouldBeTrue(new RegExp(r"\)[;\s]+") != null);
-  assertThrows(() => new RegExp(r"["));
-  assertThrows(() => new RegExp(r"[a"));
-  assertThrows(() => new RegExp(r"[-"));
-  shouldBeTrue(new RegExp(r"(a)\1") != null);
-  shouldBeTrue(new RegExp(r"(a)\1{1,3}") != null);
-}
diff --git a/tests/corelib_2/regexp/compile_test.dart b/tests/corelib_2/regexp/compile_test.dart
deleted file mode 100644
index bd55c97afe4..00000000000
--- a/tests/corelib_2/regexp/compile_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description('Test RegExp.compile method.');
-
-  var re = new RegExp("a", caseSensitive: false);
-  shouldBeTrue(re.hasMatch('A'));
-  shouldBeFalse(re.isMultiLine);
-  shouldBeFalse(re.isCaseSensitive);
-
-  re = new RegExp("a");
-  shouldBeFalse(re.isMultiLine);
-  shouldBeTrue(re.isCaseSensitive);
-  shouldBeFalse(re.hasMatch('A'));
-
-  assertThrows(() => new RegExp('+'));
-}
diff --git a/tests/corelib_2/regexp/constructor_test.dart b/tests/corelib_2/regexp/constructor_test.dart
deleted file mode 100644
index f562ae37e1c..00000000000
--- a/tests/corelib_2/regexp/constructor_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description("This test checks use of the regexp constructor.");
-
-  var re = new RegExp(r"abc");
-
-  // We do not guarantee that the same regular expression will or will not be shared.
-  // shouldBeTrue(identical(re, new RegExp(r"abc")));
-  // shouldBeTrue(identical(re, new RegExp(r"abc", caseSensitive: true, multiLine: false)));
-
-  shouldBeFalse(
-      identical(re, new RegExp(r"abc", caseSensitive: false, multiLine: true)));
-  shouldBeFalse(
-      identical(re, new RegExp(r"abc", caseSensitive: true, multiLine: true)));
-  shouldBeFalse(identical(
-      re, new RegExp(r"abc", caseSensitive: false, multiLine: false)));
-}
diff --git a/tests/corelib_2/regexp/default_arguments_test.dart b/tests/corelib_2/regexp/default_arguments_test.dart
deleted file mode 100644
index 71d959eb6bc..00000000000
--- a/tests/corelib_2/regexp/default_arguments_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that `null` is interpreted as `false` when passed as argument to
-// `caseSensitive` and `multiLine`.
-
-import 'package:expect/expect.dart';
-
-main() {
-  testCaseSensitive();
-  testMultiLine();
-}
-
-testCaseSensitive() {
-  var r1 = new RegExp('foo');
-  var r2 = new RegExp('foo', caseSensitive: true);
-  var r3 = new RegExp('foo', caseSensitive: false);
-  var r4 = new RegExp('foo', caseSensitive: null);
-  Expect.isNull(r1.firstMatch('Foo'), "r1.firstMatch('Foo')");
-  Expect.isNull(r2.firstMatch('Foo'), "r2.firstMatch('Foo')");
-  Expect.isNotNull(r3.firstMatch('Foo'), "r3.firstMatch('Foo')");
-  Expect.isNotNull(r4.firstMatch('Foo'), "r4.firstMatch('Foo')");
-}
-
-testMultiLine() {
-  var r1 = new RegExp(r'^foo$');
-  var r2 = new RegExp(r'^foo$', multiLine: true);
-  var r3 = new RegExp(r'^foo$', multiLine: false);
-  var r4 = new RegExp(r'^foo$', multiLine: null);
-  Expect.isNull(r1.firstMatch('\nfoo\n'), "r1.firstMatch('\\nfoo\\n')");
-  Expect.isNotNull(r2.firstMatch('\nfoo\n'), "r2.firstMatch('\\nfoo\\n')");
-  Expect.isNull(r3.firstMatch('\nfoo\n'), "r3.firstMatch('\\nfoo\\n')");
-  Expect.isNull(r4.firstMatch('\nfoo\n'), "r4.firstMatch('\\nfoo\\n')");
-}
diff --git a/tests/corelib_2/regexp/dot-all_test.dart b/tests/corelib_2/regexp/dot-all_test.dart
deleted file mode 100644
index 09d015108c2..00000000000
--- a/tests/corelib_2/regexp/dot-all_test.dart
+++ /dev/null
@@ -1,119 +0,0 @@
-// Copyright (c) 2019, the Dart project authors. All rights reserved.
-// Copyright 2017 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'v8_regexp_utils.dart';
-
-void main() {
-  // The flags accessors.
-  var re = new RegExp(r".", dotAll: true);
-  assertTrue(re.isCaseSensitive);
-  assertFalse(re.isMultiLine);
-  assertFalse(re.isUnicode);
-  assertTrue(re.isDotAll);
-
-  re = new RegExp(r".",
-      caseSensitive: false, multiLine: true, unicode: true, dotAll: true);
-  assertFalse(re.isCaseSensitive);
-  assertTrue(re.isMultiLine);
-  assertTrue(re.isUnicode);
-  assertTrue(re.isDotAll);
-
-  re = new RegExp(r".", caseSensitive: false, multiLine: true, unicode: true);
-  assertFalse(re.isCaseSensitive);
-  assertTrue(re.isMultiLine);
-  assertTrue(re.isUnicode);
-  assertFalse(re.isDotAll);
-
-  // Default '.' behavior.
-  re = new RegExp(r"^.$");
-  assertTrue(re.hasMatch("a"));
-  assertTrue(re.hasMatch("3"));
-  assertTrue(re.hasMatch("π"));
-  assertTrue(re.hasMatch("\u2027"));
-  assertTrue(re.hasMatch("\u0085"));
-  assertTrue(re.hasMatch("\v"));
-  assertTrue(re.hasMatch("\f"));
-  assertTrue(re.hasMatch("\u180E"));
-  assertFalse(re.hasMatch("\u{10300}")); // Supplementary plane.
-  assertFalse(re.hasMatch("\n"));
-  assertFalse(re.hasMatch("\r"));
-  assertFalse(re.hasMatch("\u2028"));
-  assertFalse(re.hasMatch("\u2029"));
-
-  // Default '.' behavior (unicode).
-  re = new RegExp(r"^.$", unicode: true);
-  assertTrue(re.hasMatch("a"));
-  assertTrue(re.hasMatch("3"));
-  assertTrue(re.hasMatch("π"));
-  assertTrue(re.hasMatch("\u2027"));
-  assertTrue(re.hasMatch("\u0085"));
-  assertTrue(re.hasMatch("\v"));
-  assertTrue(re.hasMatch("\f"));
-  assertTrue(re.hasMatch("\u180E"));
-  assertTrue(re.hasMatch("\u{10300}")); // Supplementary plane.
-  assertFalse(re.hasMatch("\n"));
-  assertFalse(re.hasMatch("\r"));
-  assertFalse(re.hasMatch("\u2028"));
-  assertFalse(re.hasMatch("\u2029"));
-
-  // DotAll '.' behavior.
-  re = new RegExp(r"^.$", dotAll: true);
-  assertTrue(re.hasMatch("a"));
-  assertTrue(re.hasMatch("3"));
-  assertTrue(re.hasMatch("π"));
-  assertTrue(re.hasMatch("\u2027"));
-  assertTrue(re.hasMatch("\u0085"));
-  assertTrue(re.hasMatch("\v"));
-  assertTrue(re.hasMatch("\f"));
-  assertTrue(re.hasMatch("\u180E"));
-  assertFalse(re.hasMatch("\u{10300}")); // Supplementary plane.
-  assertTrue(re.hasMatch("\n"));
-  assertTrue(re.hasMatch("\r"));
-  assertTrue(re.hasMatch("\u2028"));
-  assertTrue(re.hasMatch("\u2029"));
-
-  // DotAll '.' behavior (unicode).
-  re = new RegExp(r"^.$", unicode: true, dotAll: true);
-  assertTrue(re.hasMatch("a"));
-  assertTrue(re.hasMatch("3"));
-  assertTrue(re.hasMatch("π"));
-  assertTrue(re.hasMatch("\u2027"));
-  assertTrue(re.hasMatch("\u0085"));
-  assertTrue(re.hasMatch("\v"));
-  assertTrue(re.hasMatch("\f"));
-  assertTrue(re.hasMatch("\u180E"));
-  assertTrue(re.hasMatch("\u{10300}")); // Supplementary plane.
-  assertTrue(re.hasMatch("\n"));
-  assertTrue(re.hasMatch("\r"));
-  assertTrue(re.hasMatch("\u2028"));
-  assertTrue(re.hasMatch("\u2029"));
-}
diff --git a/tests/corelib_2/regexp/dotstar_test.dart b/tests/corelib_2/regexp/dotstar_test.dart
deleted file mode 100644
index 51624723b0b..00000000000
--- a/tests/corelib_2/regexp/dotstar_test.dart
+++ /dev/null
@@ -1,168 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description("This page tests handling of parentheses subexpressions.");
-
-  var regexp1 = new RegExp(r".*blah.*");
-  shouldBeNull(regexp1.firstMatch('test'));
-  shouldBe(regexp1.firstMatch('blah'), ['blah']);
-  shouldBe(regexp1.firstMatch('1blah'), ['1blah']);
-  shouldBe(regexp1.firstMatch('blah1'), ['blah1']);
-  shouldBe(regexp1.firstMatch('blah blah blah'), ['blah blah blah']);
-  shouldBe(regexp1.firstMatch('blah\nsecond'), ['blah']);
-  shouldBe(regexp1.firstMatch('first\nblah'), ['blah']);
-  shouldBe(regexp1.firstMatch('first\nblah\nthird'), ['blah']);
-  shouldBe(regexp1.firstMatch('first\nblah2\nblah3'), ['blah2']);
-
-  var regexp2 = new RegExp(r"^.*blah.*");
-  shouldBeNull(regexp2.firstMatch('test'));
-  shouldBe(regexp2.firstMatch('blah'), ['blah']);
-  shouldBe(regexp2.firstMatch('1blah'), ['1blah']);
-  shouldBe(regexp2.firstMatch('blah1'), ['blah1']);
-  shouldBe(regexp2.firstMatch('blah blah blah'), ['blah blah blah']);
-  shouldBe(regexp2.firstMatch('blah\nsecond'), ['blah']);
-  shouldBeNull(regexp2.firstMatch('first\nblah'));
-  shouldBeNull(regexp2.firstMatch('first\nblah\nthird'));
-  shouldBeNull(regexp2.firstMatch('first\nblah2\nblah3'));
-
-  var regexp3 = new RegExp(r".*blah.*$");
-  shouldBeNull(regexp3.firstMatch('test'));
-  shouldBe(regexp3.firstMatch('blah'), ['blah']);
-  shouldBe(regexp3.firstMatch('1blah'), ['1blah']);
-  shouldBe(regexp3.firstMatch('blah1'), ['blah1']);
-  shouldBe(regexp3.firstMatch('blah blah blah'), ['blah blah blah']);
-  shouldBeNull(regexp3.firstMatch('blah\nsecond'));
-  shouldBe(regexp3.firstMatch('first\nblah'), ['blah']);
-  shouldBeNull(regexp3.firstMatch('first\nblah\nthird'));
-  shouldBe(regexp3.firstMatch('first\nblah2\nblah3'), ['blah3']);
-
-  var regexp4 = new RegExp(r"^.*blah.*$");
-  shouldBeNull(regexp4.firstMatch('test'));
-  shouldBe(regexp4.firstMatch('blah'), ['blah']);
-  shouldBe(regexp4.firstMatch('1blah'), ['1blah']);
-  shouldBe(regexp4.firstMatch('blah1'), ['blah1']);
-  shouldBe(regexp4.firstMatch('blah blah blah'), ['blah blah blah']);
-  shouldBeNull(regexp4.firstMatch('blah\nsecond'));
-  shouldBeNull(regexp4.firstMatch('first\nblah'));
-  shouldBeNull(regexp4.firstMatch('first\nblah\nthird'));
-  shouldBeNull(regexp4.firstMatch('first\nblah2\nblah3'));
-
-  var regexp5 = new RegExp(r".*?blah.*");
-  shouldBeNull(regexp5.firstMatch('test'));
-  shouldBe(regexp5.firstMatch('blah'), ['blah']);
-  shouldBe(regexp5.firstMatch('1blah'), ['1blah']);
-  shouldBe(regexp5.firstMatch('blah1'), ['blah1']);
-  shouldBe(regexp5.firstMatch('blah blah blah'), ['blah blah blah']);
-  shouldBe(regexp5.firstMatch('blah\nsecond'), ['blah']);
-  shouldBe(regexp5.firstMatch('first\nblah'), ['blah']);
-  shouldBe(regexp5.firstMatch('first\nblah\nthird'), ['blah']);
-  shouldBe(regexp5.firstMatch('first\nblah2\nblah3'), ['blah2']);
-
-  var regexp6 = new RegExp(r".*blah.*?");
-  shouldBeNull(regexp6.firstMatch('test'));
-  shouldBe(regexp6.firstMatch('blah'), ['blah']);
-  shouldBe(regexp6.firstMatch('1blah'), ['1blah']);
-  shouldBe(regexp6.firstMatch('blah1'), ['blah']);
-  shouldBe(regexp6.firstMatch('blah blah blah'), ['blah blah blah']);
-  shouldBe(regexp6.firstMatch('blah\nsecond'), ['blah']);
-  shouldBe(regexp6.firstMatch('first\nblah'), ['blah']);
-  shouldBe(regexp6.firstMatch('first\nblah\nthird'), ['blah']);
-  shouldBe(regexp6.firstMatch('first\nblah2\nblah3'), ['blah']);
-
-  var regexp7 = new RegExp(r"^.*?blah.*?$");
-  shouldBeNull(regexp7.firstMatch('test'));
-  shouldBe(regexp7.firstMatch('blah'), ['blah']);
-  shouldBe(regexp7.firstMatch('1blah'), ['1blah']);
-  shouldBe(regexp7.firstMatch('blah1'), ['blah1']);
-  shouldBe(regexp7.firstMatch('blah blah blah'), ['blah blah blah']);
-  shouldBeNull(regexp7.firstMatch('blah\nsecond'));
-  shouldBeNull(regexp7.firstMatch('first\nblah'));
-  shouldBeNull(regexp7.firstMatch('first\nblah\nthird'));
-  shouldBeNull(regexp7.firstMatch('first\nblah2\nblah3'));
-
-  var regexp8 = new RegExp(r"^(.*)blah.*$");
-  shouldBeNull(regexp8.firstMatch('test'));
-  shouldBe(regexp8.firstMatch('blah'), ['blah', '']);
-  shouldBe(regexp8.firstMatch('1blah'), ['1blah', '1']);
-  shouldBe(regexp8.firstMatch('blah1'), ['blah1', '']);
-  shouldBe(
-      regexp8.firstMatch('blah blah blah'), ['blah blah blah', 'blah blah ']);
-  shouldBeNull(regexp8.firstMatch('blah\nsecond'));
-  shouldBeNull(regexp8.firstMatch('first\nblah'));
-  shouldBeNull(regexp8.firstMatch('first\nblah\nthird'));
-  shouldBeNull(regexp8.firstMatch('first\nblah2\nblah3'));
-
-  var regexp9 = new RegExp(r".*blah.*", multiLine: true);
-  shouldBeNull(regexp9.firstMatch('test'));
-  shouldBe(regexp9.firstMatch('blah'), ['blah']);
-  shouldBe(regexp9.firstMatch('1blah'), ['1blah']);
-  shouldBe(regexp9.firstMatch('blah1'), ['blah1']);
-  shouldBe(regexp9.firstMatch('blah blah blah'), ['blah blah blah']);
-  shouldBe(regexp9.firstMatch('blah\nsecond'), ['blah']);
-  shouldBe(regexp9.firstMatch('first\nblah'), ['blah']);
-  shouldBe(regexp9.firstMatch('first\nblah\nthird'), ['blah']);
-  shouldBe(regexp9.firstMatch('first\nblah2\nblah3'), ['blah2']);
-
-  var regexp10 = new RegExp(r"^.*blah.*", multiLine: true);
-  shouldBeNull(regexp10.firstMatch('test'));
-  shouldBe(regexp10.firstMatch('blah'), ['blah']);
-  shouldBe(regexp10.firstMatch('1blah'), ['1blah']);
-  shouldBe(regexp10.firstMatch('blah1'), ['blah1']);
-  shouldBe(regexp10.firstMatch('blah blah blah'), ['blah blah blah']);
-  shouldBe(regexp10.firstMatch('blah\nsecond'), ['blah']);
-  shouldBe(regexp10.firstMatch('first\nblah'), ['blah']);
-  shouldBe(regexp10.firstMatch('first\nblah\nthird'), ['blah']);
-  shouldBe(regexp10.firstMatch('first\nblah2\nblah3'), ['blah2']);
-
-  var regexp11 = new RegExp(r".*(?:blah).*$");
-  shouldBeNull(regexp11.firstMatch('test'));
-  shouldBe(regexp11.firstMatch('blah'), ['blah']);
-  shouldBe(regexp11.firstMatch('1blah'), ['1blah']);
-  shouldBe(regexp11.firstMatch('blah1'), ['blah1']);
-  shouldBe(regexp11.firstMatch('blah blah blah'), ['blah blah blah']);
-  shouldBeNull(regexp11.firstMatch('blah\nsecond'));
-  shouldBe(regexp11.firstMatch('first\nblah'), ['blah']);
-  shouldBeNull(regexp11.firstMatch('first\nblah\nthird'));
-  shouldBe(regexp11.firstMatch('first\nblah2\nblah3'), ['blah3']);
-
-  var regexp12 = new RegExp(r".*(?:blah|buzz|bang).*$");
-  shouldBeNull(regexp12.firstMatch('test'));
-  shouldBe(regexp12.firstMatch('blah'), ['blah']);
-  shouldBe(regexp12.firstMatch('1blah'), ['1blah']);
-  shouldBe(regexp12.firstMatch('blah1'), ['blah1']);
-  shouldBe(regexp12.firstMatch('blah blah blah'), ['blah blah blah']);
-  shouldBeNull(regexp12.firstMatch('blah\nsecond'));
-  shouldBe(regexp12.firstMatch('first\nblah'), ['blah']);
-  shouldBeNull(regexp12.firstMatch('first\nblah\nthird'));
-  shouldBe(regexp12.firstMatch('first\nblah2\nblah3'), ['blah3']);
-
-  var regexp13 = new RegExp(r".*\n\d+.*");
-  shouldBe(regexp13.firstMatch('abc\n123'), ['abc\n123']);
-}
diff --git a/tests/corelib_2/regexp/early-acid3-86_test.dart b/tests/corelib_2/regexp/early-acid3-86_test.dart
deleted file mode 100644
index 34ea0f04d75..00000000000
--- a/tests/corelib_2/regexp/early-acid3-86_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description(
-      'Test that covers capturing brackets, and was adapted from a part of an early version of Acid3.');
-
-  // JS regexps aren't like Perl regexps, if their character
-  // classes start with a ] that means they're empty. So this
-  // is a syntax error; if we get here it's a bug.
-  assertThrows(() => new RegExp(r"TA[])]").firstMatch('TA]'));
-  shouldBeNull(new RegExp(r"[]").firstMatch(''));
-  shouldBe(new RegExp(r"(\3)(\1)(a)").firstMatch('cat'), ['a', '', '', 'a']);
-}
diff --git a/tests/corelib_2/regexp/ecma-regex-examples_test.dart b/tests/corelib_2/regexp/ecma-regex-examples_test.dart
deleted file mode 100644
index 35a45a00605..00000000000
--- a/tests/corelib_2/regexp/ecma-regex-examples_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description(
-      "This page tests the regex examples from the ECMA-262 specification.");
-
-  var regex01 = new RegExp(r"a|ab");
-  shouldBe(regex01.firstMatch("abc"), ["a"]);
-
-  var regex02 = new RegExp(r"((a)|(ab))((c)|(bc))");
-  shouldBe(
-      regex02.firstMatch("abc"), ["abc", "a", "a", null, "bc", null, "bc"]);
-
-  var regex03 = new RegExp(r"a[a-z]{2,4}");
-  shouldBe(regex03.firstMatch("abcdefghi"), ["abcde"]);
-
-  var regex04 = new RegExp(r"a[a-z]{2,4}?");
-  shouldBe(regex04.firstMatch("abcdefghi"), ["abc"]);
-
-  var regex05 = new RegExp(r"(aa|aabaac|ba|b|c)*");
-  shouldBe(regex05.firstMatch("aabaac"), ["aaba", "ba"]);
-
-  var regex06 = new RegExp(r"^(a+)\1*,\1+$");
-  Expect.equals(
-      "aaaaaaaaaa,aaaaaaaaaaaaaaa".replaceAllMapped(regex06, (m) => m.group(1)),
-      "aaaaa");
-
-  var regex07 = new RegExp(r"(z)((a+)?(b+)?(c))*");
-  shouldBe(regex07.firstMatch("zaacbbbcac"),
-      ["zaacbbbcac", "z", "ac", "a", null, "c"]);
-
-  var regex08 = new RegExp(r"(a*)*");
-  shouldBe(regex08.firstMatch("b"), ["", null]);
-
-  var regex09 = new RegExp(r"(a*)b\1+");
-  shouldBe(regex09.firstMatch("baaaac"), ["b", ""]);
-
-  var regex10 = new RegExp(r"(?=(a+))");
-  shouldBe(regex10.firstMatch("baaabac"), ["", "aaa"]);
-
-  var regex11 = new RegExp(r"(?=(a+))a*b\1");
-  shouldBe(regex11.firstMatch("baaabac"), ["aba", "a"]);
-
-  var regex12 = new RegExp(r"(.*?)a(?!(a+)b\2c)\2(.*)");
-  shouldBe(regex12.firstMatch("baaabaac"), ["baaabaac", "ba", null, "abaac"]);
-}
diff --git a/tests/corelib_2/regexp/extended-characters-match_test.dart b/tests/corelib_2/regexp/extended-characters-match_test.dart
deleted file mode 100644
index c39f53310a9..00000000000
--- a/tests/corelib_2/regexp/extended-characters-match_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description(
-      "This test checks regular expressions using extended (> 255) characters and character classes.");
-
-  shouldBeNull((new RegExp("[\u0100-\u0101]")).firstMatch("a"));
-  shouldBeNull((new RegExp("[\u0100]")).firstMatch("a"));
-  shouldBeNull((new RegExp("\u0100")).firstMatch("a"));
-  assertEquals((new RegExp("[\u0061]")).firstMatch("a").group(0), "a");
-  assertEquals((new RegExp("[\u0100-\u0101a]")).firstMatch("a").group(0), "a");
-  assertEquals((new RegExp("[\u0100a]")).firstMatch("a").group(0), "a");
-  assertEquals((new RegExp("\u0061")).firstMatch("a").group(0), "a");
-  assertEquals((new RegExp("[a-\u0100]")).firstMatch("a").group(0), "a");
-  assertEquals(
-      (new RegExp("[\u0100]")).firstMatch("\u0100").group(0), "\u0100");
-  assertEquals(
-      (new RegExp("[\u0100-\u0101]")).firstMatch("\u0100").group(0), "\u0100");
-  assertEquals((new RegExp("\u0100")).firstMatch("\u0100").group(0), "\u0100");
-}
diff --git a/tests/corelib_2/regexp/extended-characters-more_test.dart b/tests/corelib_2/regexp/extended-characters-more_test.dart
deleted file mode 100644
index 16bcaadce80..00000000000
--- a/tests/corelib_2/regexp/extended-characters-more_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description(
-      "This test checks a few cases of extended (> 127) characters in repeat regular expressions.");
-
-  assertEquals(
-      "foo\u00a0\u00a0\u00a0"
-          .replaceFirst(new RegExp(new String.fromCharCode(0x00a0) + "*"), ""),
-      "foo\u00a0\u00a0\u00a0");
-  assertEquals(
-      "foo\u00a0\u00a0\u00a0".replaceFirst(new RegExp(r"\u00a0+"), ""), "foo");
-  assertEquals(
-      "foo\u00a0\u00a0\u00a0".replaceFirst(new RegExp(r"\u00a0*$"), ""), "foo");
-}
diff --git a/tests/corelib_2/regexp/find-first-asserted_test.dart b/tests/corelib_2/regexp/find-first-asserted_test.dart
deleted file mode 100644
index ee332c9addf..00000000000
--- a/tests/corelib_2/regexp/find-first-asserted_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description(
-      'Tests some regular expressions that were doing the wrong thing with the "find first asserted" optimization.');
-
-  shouldBe(
-      new RegExp(r".*<body>(.*)</body>.*").firstMatch("foo<body>bar</body>baz"),
-      ["foo<body>bar</body>baz", "bar"]);
-  shouldBe(new RegExp(r"\s*<!--([\s\S]*)//\s*-->\s*").firstMatch("<!--// -->"),
-      ["<!--// -->", ""]);
-}
diff --git a/tests/corelib_2/regexp/global_test.dart b/tests/corelib_2/regexp/global_test.dart
deleted file mode 100644
index 4f154166bca..00000000000
--- a/tests/corelib_2/regexp/global_test.dart
+++ /dev/null
@@ -1,186 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2012 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  var str = "ABX X";
-  str = str.replaceAll(new RegExp(r"(\w)?X"), "c");
-  assertEquals("Ac c", str);
-
-  // Test zero-length matches.
-  str = "Als Gregor Samsa eines Morgens";
-  str = str.replaceAll(new RegExp(r"\b"), "/");
-  assertEquals("/Als/ /Gregor/ /Samsa/ /eines/ /Morgens/", str);
-
-  // Test zero-length matches that have non-zero-length sub-captures.
-  str = "It was a pleasure to burn.";
-  str = str.replaceAllMapped(
-      new RegExp(r"(?=(\w+))\b"), (Match m) => m.group(1).length.toString());
-  assertEquals("2It 3was 1a 8pleasure 2to 4burn.", str);
-
-  // Test multiple captures.
-  str = "Try not. Do, or do not. There is no try.";
-  str = str.replaceAllMapped(
-      new RegExp(r"(not?)|(do)|(try)", caseSensitive: false), (m) {
-    if (m.group(1) != null) return "-";
-    if (m.group(2) != null) return "+";
-    if (m.group(3) != null) return "=";
-  });
-  assertEquals("= -. +, or + -. There is - =.", str);
-
-  // Test multiple alternate captures.
-  str = "FOUR LEGS GOOD, TWO LEGS BAD!";
-  str = str.replaceAllMapped(new RegExp(r"(FOUR|TWO) LEGS (GOOD|BAD)"), (m) {
-    if (m.group(1) == "FOUR") assertTrue(m.group(2) == "GOOD");
-    if (m.group(1) == "TWO") assertTrue(m.group(2) == "BAD");
-    return (m.group(0).length - 10).toString();
-  });
-  assertEquals("4, 2!", str);
-
-  // The same tests with UC16.
-
-  //Test that an optional capture is cleared between two matches.
-  str = "AB\u1234 \u1234";
-  str = str.replaceAll(new RegExp(r"(\w)?\u1234"), "c");
-  assertEquals("Ac c", str);
-
-  // Test zero-length matches.
-  str = "Als \u2623\u2642 eines Morgens";
-  str = str.replaceAll(new RegExp(r"\b"), "/");
-
-  // Test zero-length matches that have non-zero-length sub-captures.
-  str = "It was a pleasure to \u70e7.";
-  str = str.replaceAllMapped(
-      new RegExp(r"(?=(\w+))\b"), (m) => "${m.group(1).length}");
-  assertEquals("2It 3was 1a 8pleasure 2to \u70e7.", str);
-
-  // Test multiple captures.
-  str = "Try not. D\u26aa, or d\u26aa not. There is no try.";
-  str = str.replaceAllMapped(
-      new RegExp(r"(not?)|(d\u26aa)|(try)", caseSensitive: false), (m) {
-    if (m.group(1) != null) return "-";
-    if (m.group(2) != null) return "+";
-    if (m.group(3) != null) return "=";
-  });
-  assertEquals("= -. +, or + -. There is - =.", str);
-
-  // Test multiple alternate captures.
-  str = "FOUR \u817f GOOD, TWO \u817f BAD!";
-  str = str.replaceAllMapped(new RegExp(r"(FOUR|TWO) \u817f (GOOD|BAD)"), (m) {
-    if (m.group(1) == "FOUR") assertTrue(m.group(2) == "GOOD");
-    if (m.group(1) == "TWO") assertTrue(m.group(2) == "BAD");
-    return (m.group(0).length - 7).toString();
-  });
-  assertEquals("4, 2!", str);
-
-  // Test capture that is a real substring.
-  str = "Beasts of England, beasts of Ireland";
-  str = str.replaceAll(new RegExp(r"(.*)"), '~');
-  assertEquals("~~", str);
-
-  // Test zero-length matches that have non-zero-length sub-captures that do not
-  // start at the match start position.
-  str = "up up up up";
-  str = str.replaceAllMapped(
-      new RegExp(r"\b(?=u(p))"), (m) => "${m.group(1).length}");
-
-  assertEquals("1up 1up 1up 1up", str);
-
-  // Create regexp that has a *lot* of captures.
-  var re_string = "(a)";
-  for (var i = 0; i < 500; i++) {
-    re_string = "(" + re_string + ")";
-  }
-  re_string = re_string + "1";
-  // re_string = "(((...((a))...)))1"
-
-  var regexps = [];
-  var last_match_expectations = [];
-  var first_capture_expectations = [];
-
-  // Atomic regexp.
-  regexps.add(new RegExp(r"a1"));
-  last_match_expectations.add("a1");
-  first_capture_expectations.add("");
-  // Small regexp (no capture);
-  regexps.add(new RegExp(r"\w1"));
-  last_match_expectations.add("a1");
-  first_capture_expectations.add("");
-  // Small regexp (one capture).
-  regexps.add(new RegExp(r"(a)1"));
-  last_match_expectations.add("a1");
-  first_capture_expectations.add("a");
-  // Large regexp (a lot of captures).
-  regexps.add(new RegExp(re_string));
-  last_match_expectations.add("a1");
-  first_capture_expectations.add("a");
-
-  dynamic test_replace(result_expectation, subject, regexp, replacement) {
-    for (var i = 0; i < regexps.length; i++) {
-      // Conduct tests.
-      assertEquals(
-          result_expectation, subject.replaceAll(regexps[i], replacement));
-    }
-  }
-
-  // Test for different number of matches.
-  for (var m = 0; m < 33; m++) {
-    // Create string that matches m times.
-    var subject = "";
-    var test_1_expectation = "";
-    var test_2_expectation = "";
-    var test_3_expectation = (m == 0) ? null : [];
-    for (var i = 0; i < m; i++) {
-      subject += "a11";
-      test_1_expectation += "x1";
-      test_2_expectation += "1";
-      test_3_expectation.add("a1");
-    }
-
-    // Test 1a: String.replace with string.
-    test_replace(test_1_expectation, subject, new RegExp(r"a1"), "x");
-
-    // Test 2a: String.replace with empty string.
-    test_replace(test_2_expectation, subject, new RegExp(r"a1"), "");
-  }
-
-  // Test String hashing (compiling regular expression includes hashing).
-  var crosscheck = "\x80";
-  for (var i = 0; i < 12; i++) crosscheck += crosscheck;
-  new RegExp(crosscheck);
-
-  var subject = "ascii~only~string~here~";
-  var replacement = "\x80";
-  var result = subject.replaceAll(new RegExp(r"~"), replacement);
-  for (var i = 0; i < 5; i++) result += result;
-  new RegExp(result);
-}
diff --git a/tests/corelib_2/regexp/indexof_test.dart b/tests/corelib_2/regexp/indexof_test.dart
deleted file mode 100644
index 4928c278948..00000000000
--- a/tests/corelib_2/regexp/indexof_test.dart
+++ /dev/null
@@ -1,107 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2008 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  dynamic CheckMatch(re, str, matches) {
-    assertEquals(matches.length > 0, re.hasMatch(str));
-    var result = re.allMatches(str).toList();
-    if (matches.length > 0) {
-      assertEquals(matches.length, result.length);
-      var lastExpected;
-      var lastFrom;
-      var lastLength;
-      for (var idx = 0; idx < matches.length; idx++) {
-        var from = matches[idx][0];
-        var length = matches[idx][1];
-        var expected = str.substring(from, from + length);
-        var name = "$str[$from..${from+length}]";
-        assertEquals(expected, result[idx].group(0), name);
-      }
-    } else {
-      assertTrue(result.isEmpty);
-    }
-  }
-
-  CheckMatch(new RegExp(r"abc"), "xxxabcxxxabcxxx", [
-    [3, 3],
-    [9, 3]
-  ]);
-  CheckMatch(new RegExp(r"abc"), "abcabcabc", [
-    [0, 3],
-    [3, 3],
-    [6, 3]
-  ]);
-  CheckMatch(new RegExp(r"aba"), "ababababa", [
-    [0, 3],
-    [4, 3]
-  ]);
-  CheckMatch(new RegExp(r"foo"), "ofooofoooofofooofo", [
-    [1, 3],
-    [5, 3],
-    [12, 3]
-  ]);
-  CheckMatch(new RegExp(r"foobarbaz"), "xx", []);
-  CheckMatch(new RegExp(r"abc"), "abababa", []);
-
-  assertEquals("xxxdefxxxdefxxx",
-      "xxxabcxxxabcxxx".replaceAll(new RegExp(r"abc"), "def"));
-  assertEquals(
-      "o-o-oofo-ofo", "ofooofoooofofooofo".replaceAll(new RegExp(r"foo"), "-"));
-  assertEquals("deded", "deded".replaceAll(new RegExp(r"x"), "-"));
-  assertEquals("-a-b-c-d-e-f-", "abcdef".replaceAll(new RegExp(""), "-"));
-
-  CheckMatch(new RegExp(r"a(.)"), "xyzzyabxyzzyacxyzzy", [
-    [5, 2],
-    [12, 2]
-  ]);
-
-  CheckMatch(new RegExp(r"a|(?:)"), "aba", [
-    [0, 1],
-    [1, 0],
-    [2, 1],
-    [3, 0]
-  ]);
-  CheckMatch(new RegExp(r"a|(?:)"), "baba", [
-    [0, 0],
-    [1, 1],
-    [2, 0],
-    [3, 1],
-    [4, 0]
-  ]);
-  CheckMatch(new RegExp(r"a|(?:)"), "bab", [
-    [0, 0],
-    [1, 1],
-    [2, 0],
-    [3, 0]
-  ]);
-}
diff --git a/tests/corelib_2/regexp/invalid-range-in-class_test.dart b/tests/corelib_2/regexp/invalid-range-in-class_test.dart
deleted file mode 100644
index af193f2b74a..00000000000
--- a/tests/corelib_2/regexp/invalid-range-in-class_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description("This page tests invalid character ranges in character classes.");
-
-  // These test a basic range / non range.
-  shouldBe(new RegExp(r"[a-c]+").firstMatch("-acbd"), ["acb"]);
-  shouldBe(new RegExp(r"[a\-c]+").firstMatch("-acbd"), ["-ac"]);
-
-  // A reverse-range is invalid.
-  assertThrows(() => new RegExp(r"[c-a]+").firstMatch("-acbd"));
-
-  // A character-class in a range is invalid, according to ECMA-262, but we allow it.
-  shouldBe(new RegExp(r"[\d-x]+").firstMatch("1-3xy"), ["1-3x"]);
-  shouldBe(new RegExp(r"[x-\d]+").firstMatch("1-3xy"), ["1-3x"]);
-  shouldBe(new RegExp(r"[\\d-\d]+").firstMatch("1-3xy"), ["1-3"]);
-
-  // Whilst we break with ECMA-262's definition of CharacterRange, we do comply with
-  // the grammar, and as such in the following regex a-z cannot be matched as a range.
-  shouldBe(new RegExp(r"[\d-a-z]+").firstMatch("az1-3y"), ["az1-3"]);
-
-  // An escaped hyphen should not be confused for an invalid range.
-  shouldBe(new RegExp(r"[\d\-x]+").firstMatch("1-3xy"), ["1-3x"]);
-  shouldBe(new RegExp(r"[x\-\d]+").firstMatch("1-3xy"), ["1-3x"]);
-  shouldBe(new RegExp(r"[\d\-\d]+").firstMatch("1-3xy"), ["1-3"]);
-
-  // A hyphen after a character-class is not invalid.
-  shouldBe(new RegExp(r"[\d-]+").firstMatch("1-3xy"), ["1-3"]);
-}
diff --git a/tests/corelib_2/regexp/issue_19193_test.dart b/tests/corelib_2/regexp/issue_19193_test.dart
deleted file mode 100644
index 6b95acae5e5..00000000000
--- a/tests/corelib_2/regexp/issue_19193_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-// Regression test for http://dartbug.com/19193
-main() {
-  RegExp re = new RegExp(r'.*(a+)+\d');
-  Expect.isTrue("a0aaaaaaaaaaaaa".contains(re));
-  Expect.isTrue("a0aaaaaaaaaaaaaa".contains(re)); // false when using JSCRE.
-}
diff --git a/tests/corelib_2/regexp/jemalloc_leak_backtracking_stack_test.dart b/tests/corelib_2/regexp/jemalloc_leak_backtracking_stack_test.dart
deleted file mode 100644
index 79788c6222f..00000000000
--- a/tests/corelib_2/regexp/jemalloc_leak_backtracking_stack_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for https://github.com/flutter/flutter/issues/29007
-
-String escape(String string) {
-  var regex = new RegExp("(\\?|\\\$|\\*|\\(|\\)|\\[)|\\+|\\.|\\\\");
-  return string.replaceAllMapped(
-      regex, (Match m) => "\\" + string.substring(m.start, m.end));
-}
-
-main() {
-  var text = """
-Yet but three? Come one more.
-Two of both kinds make up four.
-""";
-  var accumulate = 0;
-  for (var i = 0; i < 65536; i++) {
-    accumulate += escape(text).length;
-  }
-
-  print(accumulate);
-}
diff --git a/tests/corelib_2/regexp/lastindex_test.dart b/tests/corelib_2/regexp/lastindex_test.dart
deleted file mode 100644
index ddf41cb0ba4..00000000000
--- a/tests/corelib_2/regexp/lastindex_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  // 'Test for regression against "https://bugs.webkit.org/show_bug.cgi?id=5602"
-  // REGRESSION: RegExp("[^\\s$]+", "g") returns extra matches'
-
-  var re = new RegExp(r"[^\s$]+");
-  var accumulate = "";
-  var match;
-  for (var match in re.allMatches("  abcdefg"))
-    accumulate += match.group(0) + "; ";
-  assertEquals(accumulate, "abcdefg; ");
-
-  re = new RegExp(r"\d");
-  accumulate = "";
-  for (var match in re.allMatches("123456789"))
-    accumulate += match.group(0) + "; ";
-  assertEquals(accumulate, "1; 2; 3; 4; 5; 6; 7; 8; 9; ");
-}
diff --git a/tests/corelib_2/regexp/look-ahead_test.dart b/tests/corelib_2/regexp/look-ahead_test.dart
deleted file mode 100644
index f52e3cd4946..00000000000
--- a/tests/corelib_2/regexp/look-ahead_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description(
-      'Test for regression against <a href="https://bugs.webkit.org/show_bug.cgi?id=41458">Yarr Interpreter is crashing in some cases of look-ahead regex patterns</a>');
-
-  shouldBe(firstMatch("ab", new RegExp(r"a(?=b|c)")), ["a"]);
-  shouldBe(firstMatch("abd", new RegExp(r"a(?=c|b)|d")), ["a"]);
-}
diff --git a/tests/corelib_2/regexp/lookahead_test.dart b/tests/corelib_2/regexp/lookahead_test.dart
deleted file mode 100644
index afb4f99ab90..00000000000
--- a/tests/corelib_2/regexp/lookahead_test.dart
+++ /dev/null
@@ -1,164 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2009 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  // Tests captures in positive and negative look-ahead in regular expressions.
-
-  dynamic testRE(re, input, expected_result) {
-    if (expected_result) {
-      assertTrue(re.hasMatch(input));
-    } else {
-      assertFalse(re.hasMatch(input));
-    }
-  }
-
-  dynamic execRE(re, input, expected_result) {
-    shouldBe(re.firstMatch(input), expected_result);
-  }
-
-  // Test of simple positive lookahead.
-
-  var re = new RegExp(r"^(?=a)");
-  testRE(re, "a", true);
-  testRE(re, "b", false);
-  execRE(re, "a", [""]);
-
-  re = new RegExp(r"^(?=\woo)f\w");
-  testRE(re, "foo", true);
-  testRE(re, "boo", false);
-  testRE(re, "fao", false);
-  testRE(re, "foa", false);
-  execRE(re, "foo", ["fo"]);
-
-  re = new RegExp(r"(?=\w).(?=\W)");
-  testRE(re, ".a! ", true);
-  testRE(re, ".! ", false);
-  testRE(re, ".ab! ", true);
-  execRE(re, ".ab! ", ["b"]);
-
-  re = new RegExp(r"(?=f(?=[^f]o))..");
-  testRE(re, ", foo!", true);
-  testRE(re, ", fo!", false);
-  testRE(re, ", ffo", false);
-  execRE(re, ", foo!", ["fo"]);
-
-  // Positive lookahead with captures.
-  re = new RegExp("^[^\'\"]*(?=([\'\"])).*\\1(\\w+)\\1");
-  testRE(re, "  'foo' ", true);
-  testRE(re, '  "foo" ', true);
-  testRE(re, " \" 'foo' ", false);
-  testRE(re, " ' \"foo\" ", false);
-  testRE(re, "  'foo\" ", false);
-  testRE(re, "  \"foo' ", false);
-  execRE(re, "  'foo' ", ["  'foo'", "'", "foo"]);
-  execRE(re, '  "foo" ', ['  "foo"', '"', 'foo']);
-
-  // Captures are cleared on backtrack past the look-ahead.
-  re = new RegExp(r"^(?:(?=(.))a|b)\1$");
-  testRE(re, "aa", true);
-  testRE(re, "b", true);
-  testRE(re, "bb", false);
-  testRE(re, "a", false);
-  execRE(re, "aa", ["aa", "a"]);
-  execRE(re, "b", ["b", null]);
-
-  re = new RegExp(r"^(?=(.)(?=(.)\1\2)\2\1)\1\2");
-  testRE(re, "abab", true);
-  testRE(re, "ababxxxxxxxx", true);
-  testRE(re, "aba", false);
-  execRE(re, "abab", ["ab", "a", "b"]);
-
-  re = new RegExp(r"^(?:(?=(.))a|b|c)$");
-  testRE(re, "a", true);
-  testRE(re, "b", true);
-  testRE(re, "c", true);
-  testRE(re, "d", false);
-  execRE(re, "a", ["a", "a"]);
-  execRE(re, "b", ["b", null]);
-  execRE(re, "c", ["c", null]);
-
-  execRE(new RegExp(r"^(?=(b))b"), "b", ["b", "b"]);
-  execRE(new RegExp(r"^(?:(?=(b))|a)b"), "ab", ["ab", null]);
-  execRE(new RegExp(r"^(?:(?=(b)(?:(?=(c))|d))|)bd"), "bd", ["bd", "b", null]);
-
-  // Test of Negative Look-Ahead.
-
-  re = new RegExp(r"(?!x).");
-  testRE(re, "y", true);
-  testRE(re, "x", false);
-  execRE(re, "y", ["y"]);
-
-  re = new RegExp(r"(?!(\d))|\d");
-  testRE(re, "4", true);
-  execRE(re, "4", ["4", null]);
-  execRE(re, "x", ["", null]);
-
-  // Test mixed nested look-ahead with captures.
-
-  re = new RegExp(r"^(?=(x)(?=(y)))");
-  testRE(re, "xy", true);
-  testRE(re, "xz", false);
-  execRE(re, "xy", ["", "x", "y"]);
-
-  re = new RegExp(r"^(?!(x)(?!(y)))");
-  testRE(re, "xy", true);
-  testRE(re, "xz", false);
-  execRE(re, "xy", ["", null, null]);
-
-  re = new RegExp(r"^(?=(x)(?!(y)))");
-  testRE(re, "xz", true);
-  testRE(re, "xy", false);
-  execRE(re, "xz", ["", "x", null]);
-
-  re = new RegExp(r"^(?!(x)(?=(y)))");
-  testRE(re, "xz", true);
-  testRE(re, "xy", false);
-  execRE(re, "xz", ["", null, null]);
-
-  re = new RegExp(r"^(?=(x)(?!(y)(?=(z))))");
-  testRE(re, "xaz", true);
-  testRE(re, "xya", true);
-  testRE(re, "xyz", false);
-  testRE(re, "a", false);
-  execRE(re, "xaz", ["", "x", null, null]);
-  execRE(re, "xya", ["", "x", null, null]);
-
-  re = new RegExp(r"^(?!(x)(?=(y)(?!(z))))");
-  testRE(re, "a", true);
-  testRE(re, "xa", true);
-  testRE(re, "xyz", true);
-  testRE(re, "xya", false);
-  execRE(re, "a", ["", null, null, null]);
-  execRE(re, "xa", ["", null, null, null]);
-  execRE(re, "xyz", ["", null, null, null]);
-}
diff --git a/tests/corelib_2/regexp/lookbehind_test.dart b/tests/corelib_2/regexp/lookbehind_test.dart
deleted file mode 100644
index cdeee895c35..00000000000
--- a/tests/corelib_2/regexp/lookbehind_test.dart
+++ /dev/null
@@ -1,440 +0,0 @@
-// Copyright (c) 2019, the Dart project authors. All rights reserved.
-// Copyright 2015 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'v8_regexp_utils.dart';
-
-void main() {
-  // Tests captures in positive and negative look-behind in regular expressions.
-
-  void testRE(RegExp re, String input, bool expectedResult) {
-    if (expectedResult) {
-      assertTrue(re.hasMatch(input));
-    } else {
-      assertFalse(re.hasMatch(input));
-    }
-  }
-
-  void execRE(RegExp re, String input, List<String> expectedResult) {
-    assertTrue(re.hasMatch(input));
-    shouldBe(re.firstMatch(input), expectedResult);
-  }
-
-  void multiRE(RegExp re, String input, List<List<String>> expectedResult) {
-    assertTrue(re.hasMatch(input));
-    final matches = re.allMatches(input);
-    assertEquals(matches.length, expectedResult.length);
-    for (var i = 0; i < matches.length; i++) {
-      shouldBe(matches.elementAt(i), expectedResult[i]);
-    }
-  }
-
-  // Simple fixed-length matches.
-
-  var re = new RegExp(r"^.(?<=a)");
-  execRE(re, "a", ["a"]);
-  testRE(re, "b", false);
-
-  re = new RegExp(r"^f..(?<=.oo)");
-  execRE(re, "foo1", ["foo"]);
-
-  re = new RegExp(r"^f\w\w(?<=\woo)");
-  execRE(re, "foo2", ["foo"]);
-  testRE(re, "boo", false);
-  testRE(re, "fao", false);
-  testRE(re, "foa", false);
-
-  re = new RegExp(r"(?<=abc)\w\w\w");
-  execRE(re, "abcdef", ["def"]);
-
-  re = new RegExp(r"(?<=a.c)\w\w\w");
-  execRE(re, "abcdef", ["def"]);
-
-  re = new RegExp(r"(?<=a\wc)\w\w\w");
-  execRE(re, "abcdef", ["def"]);
-
-  re = new RegExp(r"(?<=a[a-z])\w\w\w");
-  execRE(re, "abcdef", ["cde"]);
-
-  re = new RegExp(r"(?<=a[a-z][a-z])\w\w\w");
-  execRE(re, "abcdef", ["def"]);
-
-  re = new RegExp(r"(?<=a[a-z]{2})\w\w\w");
-  execRE(re, "abcdef", ["def"]);
-
-  re = new RegExp(r"(?<=a{1})\w\w\w");
-  execRE(re, "abcdef", ["bcd"]);
-
-  re = new RegExp(r"(?<=a{1}b{1})\w\w\w");
-  execRE(re, "abcdef", ["cde"]);
-
-  re = new RegExp(r"(?<=a{1}[a-z]{2})\w\w\w");
-  execRE(re, "abcdef", ["def"]);
-
-  // Variable-length matches.
-
-  re = new RegExp(r"(?<=[a|b|c]*)[^a|b|c]{3}");
-  execRE(re, "abcdef", ["def"]);
-
-  re = new RegExp(r"(?<=\w*)[^a|b|c]{3}");
-  execRE(re, "abcdef", ["def"]);
-
-  re = new RegExp(r"(?<=b|c)\w");
-  multiRE(re, "abcdef", [
-    ["c"],
-    ["d"]
-  ]);
-
-  re = new RegExp(r"(?<=[b-e])\w{2}");
-  multiRE(re, "abcdef", [
-    ["cd"],
-    ["ef"]
-  ]);
-
-  // Start of line matches.
-
-  re = new RegExp(r"(?<=^abc)def");
-  execRE(re, "abcdef", ["def"]);
-
-  re = new RegExp(r"(?<=^[a-c]{3})def");
-  execRE(re, "abcdef", ["def"]);
-
-  re = new RegExp(r"(?<=^[a-c]{3})def", multiLine: true);
-  execRE(re, "xyz\nabcdef", ["def"]);
-
-  re = new RegExp(r"(?<=^)\w+", multiLine: true);
-  multiRE(re, "ab\ncd\nefg", [
-    ["ab"],
-    ["cd"],
-    ["efg"]
-  ]);
-
-  re = new RegExp(r"\w+(?<=$)", multiLine: true);
-  multiRE(re, "ab\ncd\nefg", [
-    ["ab"],
-    ["cd"],
-    ["efg"]
-  ]);
-
-  re = new RegExp(r"(?<=^)\w+(?<=$)", multiLine: true);
-  multiRE(re, "ab\ncd\nefg", [
-    ["ab"],
-    ["cd"],
-    ["efg"]
-  ]);
-
-  re = new RegExp(r"(?<=^[^a-c]{3})def");
-  testRE(re, "abcdef", false);
-
-  re = new RegExp(r"^foooo(?<=^o+)$");
-  testRE(re, "foooo", false);
-
-  re = new RegExp(r"^foooo(?<=^o*)$");
-  testRE(re, "foooo", false);
-
-  re = new RegExp(r"^foo(?<=^fo+)$");
-  execRE(re, "foo", ["foo"]);
-
-  re = new RegExp(r"^foooo(?<=^fo*)");
-  execRE(re, "foooo", ["foooo"]);
-
-  re = new RegExp(r"^(f)oo(?<=^\1o+)$");
-  testRE(re, "foo", true);
-  execRE(re, "foo", ["foo", "f"]);
-
-  re = new RegExp(r"^(f)oo(?<=^\1o+)$", caseSensitive: false);
-  execRE(re, "foo", ["foo", "f"]);
-
-  re = new RegExp(r"^(f)oo(?<=^\1o+).$", caseSensitive: false);
-  execRE(re, "foo\u1234", ["foo\u1234", "f"]);
-
-  re = new RegExp(r"(?<=^\w+)def");
-  execRE(re, "abcdefdef", ["def"]);
-  multiRE(re, "abcdefdef", [
-    ["def"],
-    ["def"]
-  ]);
-
-  // Word boundary matches.
-
-  re = new RegExp(r"(?<=\b)[d-f]{3}");
-  execRE(re, "abc def", ["def"]);
-
-  re = new RegExp(r"(?<=\B)\w{3}");
-  execRE(re, "ab cdef", ["def"]);
-
-  re = new RegExp(r"(?<=\B)(?<=c(?<=\w))\w{3}");
-  execRE(re, "ab cdef", ["def"]);
-
-  re = new RegExp(r"(?<=\b)[d-f]{3}");
-  testRE(re, "abcdef", false);
-
-  // Negative lookbehind.
-
-  re = new RegExp(r"(?<!abc)\w\w\w");
-  execRE(re, "abcdef", ["abc"]);
-
-  re = new RegExp(r"(?<!a.c)\w\w\w");
-  execRE(re, "abcdef", ["abc"]);
-
-  re = new RegExp(r"(?<!a\wc)\w\w\w");
-  execRE(re, "abcdef", ["abc"]);
-
-  re = new RegExp(r"(?<!a[a-z])\w\w\w");
-  execRE(re, "abcdef", ["abc"]);
-
-  re = new RegExp(r"(?<!a[a-z]{2})\w\w\w");
-  execRE(re, "abcdef", ["abc"]);
-
-  re = new RegExp(r"(?<!abc)def");
-  testRE(re, "abcdef", false);
-
-  re = new RegExp(r"(?<!a.c)def");
-  testRE(re, "abcdef", false);
-
-  re = new RegExp(r"(?<!a\wc)def");
-  testRE(re, "abcdef", false);
-
-  re = new RegExp(r"(?<!a[a-z][a-z])def");
-  testRE(re, "abcdef", false);
-
-  re = new RegExp(r"(?<!a[a-z]{2})def");
-  testRE(re, "abcdef", false);
-
-  re = new RegExp(r"(?<!a{1}b{1})cde");
-  testRE(re, "abcdef", false);
-
-  re = new RegExp(r"(?<!a{1}[a-z]{2})def");
-  testRE(re, "abcdef", false);
-
-  // Capturing matches.
-  re = new RegExp(r"(?<=(c))def");
-  execRE(re, "abcdef", ["def", "c"]);
-
-  re = new RegExp(r"(?<=(\w{2}))def");
-  execRE(re, "abcdef", ["def", "bc"]);
-
-  re = new RegExp(r"(?<=(\w(\w)))def");
-  execRE(re, "abcdef", ["def", "bc", "c"]);
-
-  re = new RegExp(r"(?<=(\w){3})def");
-  execRE(re, "abcdef", ["def", "a"]);
-
-  re = new RegExp(r"(?<=(bc)|(cd)).");
-  execRE(re, "abcdef", ["d", "bc", null]);
-
-  re = new RegExp(r"(?<=([ab]{1,2})\D|(abc))\w");
-  execRE(re, "abcdef", ["c", "a", null]);
-
-  re = new RegExp(r"\D(?<=([ab]+))(\w)");
-  execRE(re, "abcdef", ["ab", "a", "b"]);
-
-  // Captures inside negative lookbehind. (They never capture.)
-  re = new RegExp(r"(?<!(^|[ab]))\w{2}");
-  execRE(re, "abcdef", ["de", null]);
-
-  // Nested lookaround.
-  re = new RegExp(r"(?<=ab(?=c)\wd)\w\w");
-  execRE(re, "abcdef", ["ef"]);
-
-  re = new RegExp(r"(?<=a(?=([^a]{2})d)\w{3})\w\w");
-  execRE(re, "abcdef", ["ef", "bc"]);
-
-  re = new RegExp(r"(?<=a(?=([bc]{2}(?<!a{2}))d)\w{3})\w\w");
-  execRE(re, "abcdef", ["ef", "bc"]);
-
-  re = new RegExp(r"(?<=a(?=([bc]{2}(?<!a*))d)\w{3})\w\w/");
-  testRE(re, "abcdef", false);
-
-  re = new RegExp(r"^faaao?(?<=^f[oa]+(?=o))");
-  execRE(re, "faaao", ["faaa"]);
-
-  // Back references.
-  re = new RegExp(r"(.)(?<=(\1\1))");
-  execRE(re, "abb", ["b", "b", "bb"]);
-
-  re = new RegExp(r"(.)(?<=(\1\1))", caseSensitive: false);
-  execRE(re, "abB", ["B", "B", "bB"]);
-
-  re = new RegExp(r"((\w)\w)(?<=\1\2\1)", caseSensitive: false);
-  execRE(re, "aabAaBa", ["aB", "aB", "a"]);
-
-  re = new RegExp(r"(\w(\w))(?<=\1\2\1)", caseSensitive: false);
-  execRE(re, "aabAaBa", ["Ba", "Ba", "a"]);
-
-  re = new RegExp(r"(?=(\w))(?<=(\1)).", caseSensitive: false);
-  execRE(re, "abaBbAa", ["b", "b", "B"]);
-
-  re = new RegExp(r"(?<=(.))(\w+)(?=\1)");
-  execRE(re, "  'foo'  ", ["foo", "'", "foo"]);
-  execRE(re, "  \"foo\"  ", ["foo", "\"", "foo"]);
-  testRE(re, "  .foo\"  ", false);
-
-  re = new RegExp(r"(.)(?<=\1\1\1)");
-  testRE(re, "ab", false);
-  testRE(re, "abb", false);
-  execRE(re, "abbb", ["b", "b"]);
-
-  re = new RegExp(r"(..)(?<=\1\1\1)");
-  testRE(re, "ab", false);
-  testRE(re, "abb", false);
-  testRE(re, "aabb", false);
-  testRE(re, "abab", false);
-  testRE(re, "fabxbab", false);
-  testRE(re, "faxabab", false);
-  execRE(re, "fababab", ["ab", "ab"]);
-
-  // Back references to captures inside the lookbehind.
-  re = new RegExp(r"(?<=\1(\w))d", caseSensitive: false);
-  execRE(re, "abcCd", ["d", "C"]);
-
-  re = new RegExp(r"(?<=\1([abx]))d");
-  execRE(re, "abxxd", ["d", "x"]);
-
-  re = new RegExp(r"(?<=\1(\w+))c");
-  execRE(re, "ababc", ["c", "ab"]);
-  execRE(re, "ababbc", ["c", "b"]);
-  testRE(re, "ababdc", false);
-
-  re = new RegExp(r"(?<=(\w+)\1)c");
-  execRE(re, "ababc", ["c", "abab"]);
-
-  // Alternations are tried left to right,
-  // and we do not backtrack into a lookbehind.
-  re = new RegExp(r".*(?<=(..|...|....))(.*)");
-  execRE(re, "xabcd", ["xabcd", "cd", ""]);
-
-  re = new RegExp(r".*(?<=(xx|...|....))(.*)");
-  execRE(re, "xabcd", ["xabcd", "bcd", ""]);
-
-  re = new RegExp(r".*(?<=(xx|...))(.*)");
-  execRE(re, "xxabcd", ["xxabcd", "bcd", ""]);
-
-  re = new RegExp(r".*(?<=(xx|xxx))(.*)");
-  execRE(re, "xxabcd", ["xxabcd", "xx", "abcd"]);
-
-  // We do not backtrack into a lookbehind.
-  // The lookbehind captures "abc" so that \1 does not match. We do not backtrack
-  // to capture only "bc" in the lookbehind.
-  re = new RegExp(r"(?<=([abc]+)).\1");
-  testRE(re, "abcdbc", false);
-
-  // Greedy loop.
-  re = new RegExp(r"(?<=(b+))c");
-  execRE(re, "abbbbbbc", ["c", "bbbbbb"]);
-
-  re = new RegExp(r"(?<=(b\d+))c");
-  execRE(re, "ab1234c", ["c", "b1234"]);
-
-  re = new RegExp(r"(?<=((?:b\d{2})+))c");
-  execRE(re, "ab12b23b34c", ["c", "b12b23b34"]);
-
-  // Sticky
-  re = new RegExp(r"(?<=^(\w+))def");
-  multiRE(re, "abcdefdef", [
-    ["def", "abc"],
-    ["def", "abcdef"]
-  ]);
-
-  re = new RegExp(r"\Bdef");
-  multiRE(re, "abcdefdef", [
-    ["def"],
-    ["def"]
-  ]);
-
-  // Misc
-  re = new RegExp(r"(?<=$abc)def");
-  testRE(re, "abcdef", false);
-
-  re = new RegExp(r"^foo(?<=foo)$");
-  execRE(re, "foo", ["foo"]);
-
-  re = new RegExp(r"^f.o(?<=foo)$");
-  execRE(re, "foo", ["foo"]);
-
-  re = new RegExp(r"^f.o(?<=foo)$");
-  testRE(re, "fno", false);
-
-  re = new RegExp(r"^foo(?<!foo)$");
-  testRE(re, "foo", false);
-
-  re = new RegExp(r"^f.o(?<!foo)$");
-  testRE(re, "foo", false);
-  execRE(re, "fno", ["fno"]);
-
-  re = new RegExp(r"^foooo(?<=fo+)$");
-  execRE(re, "foooo", ["foooo"]);
-
-  re = new RegExp(r"^foooo(?<=fo*)$");
-  execRE(re, "foooo", ["foooo"]);
-
-  re = new RegExp(r"(abc\1)");
-  execRE(re, "abc", ["abc", "abc"]);
-  execRE(re, "abc\u1234", ["abc", "abc"]);
-
-  re = new RegExp(r"(abc\1)", caseSensitive: false);
-  execRE(re, "abc", ["abc", "abc"]);
-  execRE(re, "abc\u1234", ["abc", "abc"]);
-
-  final oob_subject = "abcdefghijklmnabcdefghijklmn".substring(14);
-  re = new RegExp(r"(?=(abcdefghijklmn))(?<=\1)a", caseSensitive: false);
-  testRE(re, oob_subject, false);
-
-  re = new RegExp(r"(?=(abcdefghijklmn))(?<=\1)a");
-  testRE(re, oob_subject, false);
-
-  re = new RegExp(r"(?=(abcdefg))(?<=\1)");
-  testRE(re, "abcdefgabcdefg".substring(1), false);
-
-  // Mutual recursive capture/back references
-  re = new RegExp(r"(?<=a(.\2)b(\1)).{4}");
-  execRE(re, "aabcacbc", ["cacb", "a", ""]);
-
-  re = new RegExp(r"(?<=a(\2)b(..\1))b");
-  execRE(re, "aacbacb", ["b", "ac", "ac"]);
-
-  re = new RegExp(r"(?<=(?:\1b)(aa)).");
-  execRE(re, "aabaax", ["x", "aa"]);
-
-  re = new RegExp(r"(?<=(?:\1|b)(aa)).");
-  execRE(re, "aaaax", ["x", "aa"]);
-
-  // Restricted syntax in Annex B 1.4.
-  // The check for quantifiers on lookbehinds was added later than the
-  // original feature in v8, so we may need to approve failures here
-  // separately from the rest of the file.
-  assertThrows(() => new RegExp(r"(?<=.)*")); //# 01: ok
-  assertThrows(() => new RegExp(r"(?<=.)?")); //# 01: ok
-  assertThrows(() => new RegExp(r"(?<=.)+")); //# 01: ok
-
-  assertThrows(() => new RegExp(r"(?<=.)*", unicode: true)); //# 01: ok
-  assertThrows(() => new RegExp(r"(?<=.){1,2}", unicode: true)); //# 01: ok
-}
diff --git a/tests/corelib_2/regexp/loop-capture_test.dart b/tests/corelib_2/regexp/loop-capture_test.dart
deleted file mode 100644
index c540ae0f280..00000000000
--- a/tests/corelib_2/regexp/loop-capture_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2009 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  shouldBe(new RegExp(r"(?:(a)|(b)|(c))+").firstMatch("abc"),
-      ["abc", null, null, "c"]);
-  shouldBe(new RegExp(r"(?:(a)|b)*").firstMatch("ab"), ["ab", null]);
-}
diff --git a/tests/corelib_2/regexp/malformed-escapes_test.dart b/tests/corelib_2/regexp/malformed-escapes_test.dart
deleted file mode 100644
index f048fdf8ccf..00000000000
--- a/tests/corelib_2/regexp/malformed-escapes_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description("This page tests handling of malformed escape sequences.");
-
-  var regexp;
-
-  regexp = new RegExp(r"\ug", multiLine: true);
-  shouldBeTrue(regexp.hasMatch('ug'));
-
-  regexp = new RegExp(r"\xg", multiLine: true);
-  shouldBeTrue(regexp.hasMatch('xg'));
-
-  regexp = new RegExp(r"\c_", multiLine: true);
-  shouldBeTrue(regexp.hasMatch('\\\\c_'));
-
-  regexp = new RegExp(r"[\B]", multiLine: true);
-  shouldBeTrue(regexp.hasMatch('B'));
-
-  regexp = new RegExp(r"[\b]", multiLine: true);
-  shouldBeTrue(regexp.hasMatch('\b'));
-
-  regexp = new RegExp(r"\8", multiLine: true);
-  shouldBeTrue(regexp.hasMatch('\\\8'));
-
-  regexp = new RegExp(r"^[\c]$");
-  shouldBeTrue(regexp.hasMatch('c'));
-
-  regexp = new RegExp(r"^[\c_]$");
-  shouldBeFalse(regexp.hasMatch('c'));
-
-  regexp = new RegExp(r"^[\c]]$");
-  shouldBeTrue(regexp.hasMatch('c]'));
-}
diff --git a/tests/corelib_2/regexp/many-brackets_test.dart b/tests/corelib_2/regexp/many-brackets_test.dart
deleted file mode 100644
index fd9662bca3f..00000000000
--- a/tests/corelib_2/regexp/many-brackets_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description(
-      'Test regular expression processing with many capturing brackets (200).');
-
-  var count = 200;
-
-  var regexp = "";
-  for (var i = 0; i < count; ++i) regexp += "(";
-  regexp += "hello";
-  for (var i = 0; i < count; ++i) regexp += ")";
-
-  var manyHellosArray = [];
-  for (var i = 0; i <= count; ++i) manyHellosArray.add("hello");
-
-  var manyBracketsRegExp = new RegExp(regexp);
-  shouldBe(firstMatch('hello', manyBracketsRegExp), manyHellosArray);
-}
diff --git a/tests/corelib_2/regexp/multiline_test.dart b/tests/corelib_2/regexp/multiline_test.dart
deleted file mode 100644
index 3d4482f2534..00000000000
--- a/tests/corelib_2/regexp/multiline_test.dart
+++ /dev/null
@@ -1,116 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2008 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-/**
- * @fileoverview Check that various regexp constructs work as intended.
- * Particularly those regexps that use ^ and $.
- */
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  assertTrue(new RegExp(r"^bar").hasMatch("bar"));
-  assertTrue(new RegExp(r"^bar").hasMatch("bar\nfoo"));
-  assertFalse(new RegExp(r"^bar").hasMatch("foo\nbar"));
-  assertTrue(new RegExp(r"^bar", multiLine: true).hasMatch("bar"));
-  assertTrue(new RegExp(r"^bar", multiLine: true).hasMatch("bar\nfoo"));
-  assertTrue(new RegExp(r"^bar", multiLine: true).hasMatch("foo\nbar"));
-
-  assertTrue(new RegExp(r"bar$").hasMatch("bar"));
-  assertFalse(new RegExp(r"bar$").hasMatch("bar\nfoo"));
-  assertTrue(new RegExp(r"bar$").hasMatch("foo\nbar"));
-  assertTrue(new RegExp(r"bar$", multiLine: true).hasMatch("bar"));
-  assertTrue(new RegExp(r"bar$", multiLine: true).hasMatch("bar\nfoo"));
-  assertTrue(new RegExp(r"bar$", multiLine: true).hasMatch("foo\nbar"));
-
-  assertFalse(new RegExp(r"^bxr").hasMatch("bar"));
-  assertFalse(new RegExp(r"^bxr").hasMatch("bar\nfoo"));
-  assertFalse(new RegExp(r"^bxr", multiLine: true).hasMatch("bar"));
-  assertFalse(new RegExp(r"^bxr", multiLine: true).hasMatch("bar\nfoo"));
-  assertFalse(new RegExp(r"^bxr", multiLine: true).hasMatch("foo\nbar"));
-
-  assertFalse(new RegExp(r"bxr$").hasMatch("bar"));
-  assertFalse(new RegExp(r"bxr$").hasMatch("foo\nbar"));
-  assertFalse(new RegExp(r"bxr$", multiLine: true).hasMatch("bar"));
-  assertFalse(new RegExp(r"bxr$", multiLine: true).hasMatch("bar\nfoo"));
-  assertFalse(new RegExp(r"bxr$", multiLine: true).hasMatch("foo\nbar"));
-
-  assertTrue(new RegExp(r"^.*$").hasMatch(""));
-  assertTrue(new RegExp(r"^.*$").hasMatch("foo"));
-  assertFalse(new RegExp(r"^.*$").hasMatch("\n"));
-  assertTrue(new RegExp(r"^.*$", multiLine: true).hasMatch("\n"));
-
-  assertTrue(new RegExp(r"^[\s]*$").hasMatch(" "));
-  assertTrue(new RegExp(r"^[\s]*$").hasMatch("\n"));
-
-  assertTrue(new RegExp(r"^[^]*$").hasMatch(""));
-  assertTrue(new RegExp(r"^[^]*$").hasMatch("foo"));
-  assertTrue(new RegExp(r"^[^]*$").hasMatch("\n"));
-
-  assertTrue(new RegExp(r"^([()\s]|.)*$").hasMatch("()\n()"));
-  assertTrue(new RegExp(r"^([()\n]|.)*$").hasMatch("()\n()"));
-  assertFalse(new RegExp(r"^([()]|.)*$").hasMatch("()\n()"));
-  assertTrue(new RegExp(r"^([()]|.)*$", multiLine: true).hasMatch("()\n()"));
-  assertTrue(new RegExp(r"^([()]|.)*$", multiLine: true).hasMatch("()\n"));
-  assertTrue(new RegExp(r"^[()]*$", multiLine: true).hasMatch("()\n."));
-
-  assertTrue(new RegExp(r"^[\].]*$").hasMatch("...]..."));
-
-  dynamic check_case(lc, uc) {
-    var a = new RegExp("^" + lc + r"$");
-    assertFalse(a.hasMatch(uc));
-    a = new RegExp("^" + lc + r"$", caseSensitive: false);
-    assertTrue(a.hasMatch(uc));
-
-    var A = new RegExp("^" + uc + r"$");
-    assertFalse(A.hasMatch(lc));
-    A = new RegExp("^" + uc + r"$", caseSensitive: false);
-    assertTrue(A.hasMatch(lc));
-
-    a = new RegExp("^[" + lc + r"]$");
-    assertFalse(a.hasMatch(uc));
-    a = new RegExp("^[" + lc + r"]$", caseSensitive: false);
-    assertTrue(a.hasMatch(uc));
-
-    A = new RegExp("^[" + uc + r"]$");
-    assertFalse(A.hasMatch(lc));
-    A = new RegExp("^[" + uc + r"]$", caseSensitive: false);
-    assertTrue(A.hasMatch(lc));
-  }
-
-  check_case("a", "A");
-  // Aring
-  check_case(new String.fromCharCode(229), new String.fromCharCode(197));
-  // Russian G
-  check_case(new String.fromCharCode(0x413), new String.fromCharCode(0x433));
-
-  assertThrows(() => new RegExp('[z-a]'));
-}
diff --git a/tests/corelib_2/regexp/named_captures_2_test.dart b/tests/corelib_2/regexp/named_captures_2_test.dart
deleted file mode 100644
index df8bc252b34..00000000000
--- a/tests/corelib_2/regexp/named_captures_2_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2022, the Dart project authors. All rights reserved.
-// Copyright 2017 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-
-// These test cases really belong in `named_captures_test` but they've been
-// broken out because they currently fail on all web backends.
-void main() {
-  assertThrows(() => RegExp(r"(?<$𐒤>a)"));
-  assertThrows(() => RegExp("(?<a\uD801\uDCA4>.)"));
-  assertThrows(() => RegExp(r"(?<a\uD801\uDCA4>.)"));
-  assertThrows(() => RegExp("(?<a\uD801>.)"));
-  assertThrows(() => RegExp(r"(?<a\uD801>.)"));
-  assertThrows(() => RegExp("(?<a\uDCA4>.)"));
-  assertThrows(() => RegExp(r"(?<a\uDCA4>.)"));
-  assertThrows(() => RegExp("(?<a\u{104A4}>.)"));
-  assertThrows(() => RegExp(r"(?<a\u{104A4}>.)"));
-  assertThrows(() => RegExp("(?<a\u{10FFFF}>.)"));
-  assertThrows(() => RegExp(r"(?<a\u{10FFFF}>.)"));
-  assertThrows(() => RegExp(r"(?<a\\u{110000}>.)"));
-}
diff --git a/tests/corelib_2/regexp/named_captures_test.dart b/tests/corelib_2/regexp/named_captures_test.dart
deleted file mode 100644
index 6709d5a0cc6..00000000000
--- a/tests/corelib_2/regexp/named_captures_test.dart
+++ /dev/null
@@ -1,344 +0,0 @@
-// Copyright (c) 2019, the Dart project authors. All rights reserved.
-// Copyright 2017 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'v8_regexp_utils.dart';
-
-// TODO(50437): A number of test cases in this group currently fail on
-// web backends, and so those cases were moved to `named_captures_2_test`.
-// To highlight the connection between these tests, those test cases have been
-// left in this file but commented out.
-void main() {
-  void execRE(RegExp re, String input, List<String> expectedResult) {
-    assertTrue(re.hasMatch(input));
-    shouldBe(re.firstMatch(input), expectedResult);
-  }
-
-  void execString(String pattern, String input, List<String> expectedResult,
-      {bool unicode = true, bool caseSensitive = false}) {
-    execRE(RegExp(pattern, unicode: unicode, caseSensitive: caseSensitive),
-        input, expectedResult);
-  }
-
-  void namedRE(RegExp re, String input, Map<String, String> expectedResults) {
-    assertTrue(re.hasMatch(input));
-    var match = re.firstMatch(input);
-    for (var s in expectedResults.keys) {
-      assertEquals(match.namedGroup(s), expectedResults[s]);
-    }
-  }
-
-  void execStringGroups(
-      String pattern, String input, Map<String, String> expectedResults,
-      {bool unicode = true, bool caseSensitive = false}) {
-    namedRE(RegExp(pattern, unicode: unicode, caseSensitive: caseSensitive),
-        input, expectedResults);
-  }
-
-  void hasNames(RegExp re, String input, List<String> expectedResults) {
-    assertTrue(re.hasMatch(input));
-    var match = re.firstMatch(input);
-    for (var s in match.groupNames) {
-      assertTrue(expectedResults.contains(s));
-    }
-  }
-
-  void matchesIndexEqual(String input, RegExp re1, RegExp re2) {
-    var m1 = re1.firstMatch(input);
-    var m2 = re2.firstMatch(input);
-    if (m2 == null) {
-      assertNull(m1);
-    } else {
-      assertTrue(m1 != null);
-      assertEquals(m1.groupCount, m2.groupCount);
-      for (int i = 0; i < m1.groupCount; i++) {
-        assertEquals(m1.group(i), m2.group(i));
-      }
-    }
-  }
-
-  // Malformed named captures.
-  // Empty name.
-  assertThrows(() => RegExp(r"(?<>a)", unicode: true));
-  // Unterminated name.
-  assertThrows(() => RegExp(r"(?<aa)", unicode: true));
-  // Name starting with digits.
-  assertThrows(() => RegExp(r"(?<42a>a)", unicode: true));
-  // Name starting with invalid char.
-  assertThrows(() => RegExp(r"(?<:a>a)", unicode: true));
-  // Name containing invalid char.
-  assertThrows(() => RegExp(r"(?<a:>a)", unicode: true));
-  // Duplicate name.
-  assertThrows(() => RegExp(r"(?<a>a)(?<a>a)", unicode: true));
-  // Duplicate name.
-  assertThrows(() => RegExp(r"(?<a>a)(?<b>b)(?<a>a)", unicode: true));
-  // Invalid reference.
-  assertThrows(() => RegExp(r"\k<a>", unicode: true));
-  // Unterminated reference.
-  assertThrows(() => RegExp(r"\k<a", unicode: true));
-  // Lone \k.
-  assertThrows(() => RegExp(r"\k", unicode: true));
-  // Lone \k.
-  assertThrows(() => RegExp(r"(?<a>.)\k", unicode: true));
-  // Unterminated reference.
-  assertThrows(() => RegExp(r"(?<a>.)\k<a", unicode: true));
-  // Invalid reference.
-  assertThrows(() => RegExp(r"(?<a>.)\k<b>", unicode: true));
-  // Invalid reference.
-  assertThrows(() => RegExp(r"(?<a>a)\k<ab>", unicode: true));
-  // Invalid reference.
-  assertThrows(() => RegExp(r"(?<ab>a)\k<a>", unicode: true));
-  // Invalid reference.
-  assertThrows(() => RegExp(r"\k<a>(?<ab>a)", unicode: true));
-  // Identity escape in capture.
-  assertThrows(() => RegExp(r"(?<a>\a)", unicode: true));
-
-  // Behavior in non-unicode mode.
-  assertThrows(() => RegExp(r"(?<>a)"));
-  assertThrows(() => RegExp(r"(?<aa)"));
-  assertThrows(() => RegExp(r"(?<42a>a)"));
-  assertThrows(() => RegExp(r"(?<:a>a)"));
-  assertThrows(() => RegExp(r"(?<a:>a)"));
-  assertThrows(() => RegExp(r"(?<a>a)(?<a>a)"));
-  assertThrows(() => RegExp(r"(?<a>a)(?<b>b)(?<a>a)"));
-  assertTrue(RegExp(r"\k<a>").hasMatch("k<a>"));
-  assertTrue(RegExp(r"\k<4>").hasMatch("k<4>"));
-  assertTrue(RegExp(r"\k<a").hasMatch("k<a"));
-  assertTrue(RegExp(r"\k").hasMatch("k"));
-  assertThrows(() => RegExp(r"(?<a>.)\k"));
-  assertThrows(() => RegExp(r"(?<a>.)\k<a"));
-  assertThrows(() => RegExp(r"(?<a>.)\k<b>"));
-  assertThrows(() => RegExp(r"(?<a>a)\k<ab>"));
-  assertThrows(() => RegExp(r"(?<ab>a)\k<a>"));
-  assertThrows(() => RegExp(r"\k<a>(?<ab>a)"));
-  assertThrows(() => RegExp(r"\k<a(?<a>a)"));
-  assertTrue(RegExp(r"(?<a>\a)").hasMatch("a"));
-
-  var re = RegExp(r"\k<a>");
-  execRE(re, "xxxk<a>xxx", ["k<a>"]);
-
-  re = RegExp(r"\k<a");
-  execRE(re, "xxxk<a>xxx", ["k<a"]);
-
-  re = RegExp(r"(?<a>.)(?<b>.)(?<c>.)\k<c>\k<b>\k<a>");
-  execRE(re, "abccba", ["abccba", "a", "b", "c"]);
-  namedRE(re, "abccba", {"a": "a", "b": "b", "c": "c"});
-  hasNames(re, "abccba", ["a", "b", "c"]);
-
-  // A couple of corner cases around '\k' as named back-references vs. identity
-  // escapes.
-  assertTrue(RegExp(r"\k<a>(?<=>)a").hasMatch("k<a>a"));
-  assertTrue(RegExp(r"\k<a>(?<!a)a").hasMatch("k<a>a"));
-  assertTrue(RegExp(r"\k<a>(<a>x)").hasMatch("k<a><a>x"));
-  assertTrue(RegExp(r"\k<a>(?<a>x)").hasMatch("x"));
-  assertThrows(() => RegExp(r"\k<a>(?<b>x)"));
-  assertThrows(() => RegExp(r"\k<a(?<a>.)"));
-  assertThrows(() => RegExp(r"\k(?<a>.)"));
-
-  // Basic named groups.
-  execString(r"(?<a>a)", "bab", ["a", "a"]);
-  execString(r"(?<a42>a)", "bab", ["a", "a"]);
-  execString(r"(?<_>a)", "bab", ["a", "a"]);
-  execString(r"(?<$>a)", "bab", ["a", "a"]);
-  execString(r".(?<$>a).", "bab", ["bab", "a"]);
-  execString(r".(?<a>a)(.)", "bab", ["bab", "a", "b"]);
-  execString(r".(?<a>a)(?<b>.)", "bab", ["bab", "a", "b"]);
-  execString(r".(?<a>\w\w)", "bab", ["bab", "ab"]);
-  execString(r"(?<a>\w\w\w)", "bab", ["bab", "bab"]);
-  execString(r"(?<a>\w\w)(?<b>\w)", "bab", ["bab", "ba", "b"]);
-
-  execString(r"(?<a>a)", "bab", ["a", "a"], unicode: false);
-  execString(r"(?<a42>a)", "bab", ["a", "a"], unicode: false);
-  execString(r"(?<_>a)", "bab", ["a", "a"], unicode: false);
-  execString(r"(?<$>a)", "bab", ["a", "a"], unicode: false);
-  execString(r".(?<$>a).", "bab", ["bab", "a"], unicode: false);
-  execString(r".(?<a>a)(.)", "bab", ["bab", "a", "b"], unicode: false);
-  execString(r".(?<a>a)(?<b>.)", "bab", ["bab", "a", "b"], unicode: false);
-  execString(r".(?<a>\w\w)", "bab", ["bab", "ab"], unicode: false);
-  execString(r"(?<a>\w\w\w)", "bab", ["bab", "bab"], unicode: false);
-  execString(r"(?<a>\w\w)(?<b>\w)", "bab", ["bab", "ba", "b"], unicode: false);
-
-  matchesIndexEqual(
-      "bab", RegExp(r"(?<a>a)", unicode: true), RegExp(r"(a)", unicode: true));
-  matchesIndexEqual("bab", RegExp(r"(?<a42>a)", unicode: true),
-      RegExp(r"(a)", unicode: true));
-  matchesIndexEqual(
-      "bab", RegExp(r"(?<_>a)", unicode: true), RegExp(r"(a)", unicode: true));
-  matchesIndexEqual(
-      "bab", RegExp(r"(?<$>a)", unicode: true), RegExp(r"(a)", unicode: true));
-  matchesIndexEqual("bab", RegExp(r".(?<$>a).", unicode: true),
-      RegExp(r".(a).", unicode: true));
-  matchesIndexEqual("bab", RegExp(r".(?<a>a)(.)", unicode: true),
-      RegExp(r".(a)(.)", unicode: true));
-  matchesIndexEqual("bab", RegExp(r".(?<a>a)(?<b>.)", unicode: true),
-      RegExp(r".(a)(.)", unicode: true));
-  matchesIndexEqual("bab", RegExp(r".(?<a>\w\w)", unicode: true),
-      RegExp(r".(\w\w)", unicode: true));
-  matchesIndexEqual("bab", RegExp(r"(?<a>\w\w\w)", unicode: true),
-      RegExp(r"(\w\w\w)", unicode: true));
-  matchesIndexEqual("bab", RegExp(r"(?<a>\w\w)(?<b>\w)", unicode: true),
-      RegExp(r"(\w\w)(\w)", unicode: true));
-
-  execString(r"(?<b>b).\1", "bab", ["bab", "b"]);
-  execString(r"(.)(?<a>a)\1\2", "baba", ["baba", "b", "a"]);
-  execString(r"(.)(?<a>a)(?<b>\1)(\2)", "baba", ["baba", "b", "a", "b", "a"]);
-  execString(r"(?<lt><)a", "<a", ["<a", "<"]);
-  execString(r"(?<gt>>)a", ">a", [">a", ">"]);
-
-  // Named references.
-  var pattern = r"(?<b>.).\k<b>";
-  execString(pattern, "bab", ["bab", "b"]);
-  assertFalse(RegExp(pattern, unicode: true).hasMatch("baa"));
-
-  // Nested groups.
-  pattern = r"(?<a>.(?<b>.(?<c>.)))";
-  execString(pattern, "bab", ["bab", "bab", "ab", "b"]);
-  execStringGroups(pattern, "bab", {"a": "bab", "b": "ab", "c": "b"});
-
-  // Reference inside group.
-  pattern = r"(?<a>\k<a>\w)..";
-  execString(pattern, "bab", ["bab", "b"]);
-  execStringGroups(pattern, "bab", {"a": "b"});
-
-  // Reference before group.
-  pattern = r"\k<a>(?<a>b)\w\k<a>";
-  execString(pattern, "bab", ["bab", "b"], unicode: false);
-  execString(pattern, "bab", ["bab", "b"]);
-  execStringGroups(pattern, "bab", {"a": "b"});
-
-  pattern = r"(?<b>b)\k<a>(?<a>a)\k<b>";
-  execString(pattern, "bab", ["bab", "b", "a"], unicode: false);
-  execString(pattern, "bab", ["bab", "b", "a"]);
-  execStringGroups(pattern, "bab", {"a": "a", "b": "b"});
-
-  // Reference named groups.
-  var match = RegExp(r"(?<a>a)(?<b>b)\k<a>", unicode: true).firstMatch("aba");
-  assertEquals("a", match.namedGroup("a"));
-  assertEquals("b", match.namedGroup("b"));
-  assertFalse(match.groupNames.contains("c"));
-
-  match =
-      RegExp(r"(?<a>a)(?<b>b)\k<a>|(?<c>c)", unicode: true).firstMatch("aba");
-  assertNull(match.namedGroup("c"));
-
-  // Unicode names.
-  execStringGroups(r"(?<π>a)", "bab", {"π": "a"});
-  execStringGroups(r"(?<\u{03C0}>a)", "bab", {"π": "a"});
-  execStringGroups(r"(?<π>a)", "bab", {"\u03C0": "a"});
-  execStringGroups(r"(?<\u{03C0}>a)", "bab", {"\u03C0": "a"});
-  execStringGroups(r"(?<$>a)", "bab", {"\$": "a"});
-  execStringGroups(r"(?<_>a)", "bab", {"_": "a"});
-  execStringGroups(r"(?<$𐒤>a)", "bab", {"\$𐒤": "a"});
-  execStringGroups(r"(?<_\u200C>a)", "bab", {"_\u200C": "a"});
-  execStringGroups(r"(?<_\u200D>a)", "bab", {"_\u200D": "a"});
-  execStringGroups(r"(?<ಠ_ಠ>a)", "bab", {"ಠ_ಠ": "a"});
-  // ID_Continue but not ID_Start.
-  assertThrows(() => RegExp(r"/(?<❤>a)", unicode: true));
-  assertThrows(() => RegExp(r"/(?<𐒤>a)", unicode: true));
-
-  execStringGroups(r"(?<π>a)", "bab", {"π": "a"}, unicode: false);
-  execStringGroups(r"(?<$>a)", "bab", {"\$": "a"}, unicode: false);
-  execStringGroups(r"(?<_>a)", "bab", {"_": "a"}, unicode: false);
-  // assertThrows(() => RegExp(r"(?<$𐒤>a)"));
-  execStringGroups(r"(?<ಠ_ಠ>a)", "bab", {"ಠ_ಠ": "a"}, unicode: false);
-  // ID_Continue but not ID_Start.
-  assertThrows(() => RegExp(r"/(?<❤>a)"));
-  assertThrows(() => RegExp(r"/(?<𐒤>a)"));
-
-  // Interaction with lookbehind assertions.
-  pattern = r"(?<=(?<a>\w){3})f";
-  execString(pattern, "abcdef", ["f", "c"]);
-  execStringGroups(pattern, "abcdef", {"a": "c"});
-
-  execStringGroups(r"(?<=(?<a>\w){4})f", "abcdef", {"a": "b"});
-  execStringGroups(r"(?<=(?<a>\w)+)f", "abcdef", {"a": "a"});
-  assertFalse(RegExp(r"(?<=(?<a>\w){6})f", unicode: true).hasMatch("abcdef"));
-
-  execString(r"((?<=\w{3}))f", "abcdef", ["f", ""]);
-  execString(r"(?<a>(?<=\w{3}))f", "abcdef", ["f", ""]);
-
-  execString(r"(?<!(?<a>\d){3})f", "abcdef", ["f", null]);
-  assertFalse(RegExp(r"(?<!(?<a>\D){3})f", unicode: true).hasMatch("abcdef"));
-
-  execString(r"(?<!(?<a>\D){3})f|f", "abcdef", ["f", null]);
-  execString(r"(?<a>(?<!\D{3}))f|f", "abcdef", ["f", null]);
-
-  // Matches contain the names of named captures
-  match = RegExp(r"(?<fst>.)|(?<snd>.)", unicode: true).firstMatch("abcd");
-  Expect.setEquals(["fst", "snd"], match.groupNames);
-
-  // Backslash as ID_Start and ID_Continue (v8:5868).
-  assertThrows(() => RegExp("(?<\\>.)")); // '\' misclassified as ID_Start.
-  assertThrows(() => RegExp("(?<a\\>.)")); // '\' misclassified as ID_Continue.
-
-  // Backreference before the group (exercises the capture mini-parser).
-  assertThrows(() => RegExp(r"/\1(?:.)", unicode: true));
-  assertThrows(() => RegExp(r"/\1(?<=a).", unicode: true));
-  assertThrows(() => RegExp(r"/\1(?<!a).", unicode: true));
-  execString(r"\1(?<a>.)", "abcd", ["a", "a"]);
-
-  // Unicode escapes in capture names. (Testing both unicode interpreted by
-  // Dart string handling and also escaped unicode making it to RegExp parser.)
-
-  // \u Lead \u Trail
-  assertTrue(RegExp("(?<a\uD801\uDCA4>.)", unicode: true).hasMatch("a"));
-  assertTrue(RegExp(r"(?<a\uD801\uDCA4>.)", unicode: true).hasMatch("a"));
-  assertThrows(() => RegExp("(?<a\uD801>.)", unicode: true)); // \u Lead
-  assertThrows(() => RegExp(r"(?<a\uD801>.)", unicode: true)); // \u Lead
-  assertThrows(() => RegExp("(?<a\uDCA4>.)", unicode: true)); // \u Trail
-  assertThrows(() => RegExp(r"(?<a\uDCA4>.)", unicode: true)); // \u Trail
-  // \u NonSurrogate
-  assertTrue(RegExp("(?<\u0041>.)", unicode: true).hasMatch("a"));
-  assertTrue(RegExp(r"(?<\u0041>.)", unicode: true).hasMatch("a"));
-  // \u{ Surrogate, ID_Continue }
-  assertTrue(RegExp("(?<a\u{104A4}>.)", unicode: true).hasMatch("a"));
-  assertTrue(RegExp(r"(?<a\u{104A4}>.)", unicode: true).hasMatch("a"));
-
-  // \u{ Out-of-bounds } -- only need to test RegExp parser for this.
-  assertThrows(() => RegExp(r"(?<a\\u{110000}>.)", unicode: true));
-
-  // Also checking non-unicode patterns, where surrogate pairs will not
-  // be combined (so only \u0041 will have any success).
-
-  // assertThrows(() => RegExp("(?<a\uD801\uDCA4>.)"));
-  // assertThrows(() => RegExp(r"(?<a\uD801\uDCA4>.)"));
-  // assertThrows(() => RegExp("(?<a\uD801>.)"));
-  // assertThrows(() => RegExp(r"(?<a\uD801>.)"));
-  // assertThrows(() => RegExp("(?<a\uDCA4>.)"));
-  // assertThrows(() => RegExp(r"(?<a\uDCA4>.)"));
-  assertTrue(RegExp("(?<\u0041>.)").hasMatch("a"));
-  assertTrue(RegExp(r"(?<\u0041>.)").hasMatch("a"));
-  // assertThrows(() => RegExp("(?<a\u{104A4}>.)"));
-  // assertThrows(() => RegExp(r"(?<a\u{104A4}>.)"));
-  // assertThrows(() => RegExp("(?<a\u{10FFFF}>.)"));
-  // assertThrows(() => RegExp(r"(?<a\u{10FFFF}>.)"));
-  // assertThrows(() => RegExp(r"(?<a\\u{110000}>.)"));
-}
diff --git a/tests/corelib_2/regexp/negative-special-characters_test.dart b/tests/corelib_2/regexp/negative-special-characters_test.dart
deleted file mode 100644
index 2ce02a1f34f..00000000000
--- a/tests/corelib_2/regexp/negative-special-characters_test.dart
+++ /dev/null
@@ -1,97 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description("This test checks Unicode in negative RegExp character classes.");
-
-  dynamic testPassed(str) {}
-  dynamic testFailed(str) => Expect.fail(str);
-
-  dynamic test(pattern, str, expected_length) {
-    var result = str.replaceAll(
-        new RegExp(pattern, caseSensitive: false, multiLine: true), '');
-
-    if (result.length == expected_length)
-      testPassed('"' + pattern + '", ' + '"' + str + '".');
-    else
-      testFailed(
-          '"' + pattern + '", ' + '"' + str + '". Was "' + result + '".');
-  }
-
-  test("\\s", " \t\f\v\r\n", 0); // ASCII whitespace.
-  test("\\S", "Проверка", 0); // Cyrillic letters are non-whitespace...
-  test("\\s", "Проверка", 8); // ...and they aren't whitespace.
-  test("[\\s]", "Проверка", 8);
-  test("[\\S]", "Проверка", 0);
-  test("[^\\s]", "Проверка", 0);
-  test("[^\\S]", "Проверка", 8);
-  test("[\\s\\S]*", "\\u2002Проверка\\r\\n\\u00a0", 0);
-  test("\\S\\S", "уф", 0);
-  test("\\S{2}", "уф", 0);
-
-  test("\\w", "Проверка",
-      8); // Alas, only ASCII characters count as word ones in JS.
-  test("\\W", "Проверка", 0);
-  test("[\\w]", "Проверка", 8);
-  test("[\\W]", "Проверка", 0);
-  test("[^\\w]", "Проверка", 0);
-  test("[^\\W]", "Проверка", 8);
-  test("\\W\\W", "уф", 0);
-  test("\\W{2}", "уф", 0);
-
-  test("\\d", "Проверка", 8); // Digit and non-digit.
-  test("\\D", "Проверка", 0);
-  test("[\\d]", "Проверка", 8);
-  test("[\\D]", "Проверка", 0);
-  test("[^\\d]", "Проверка", 0);
-  test("[^\\D]", "Проверка", 8);
-  test("\\D\\D", "уф", 0);
-  test("\\D{2}", "уф", 0);
-
-  test("[\\S\\d]", "Проверка123", 0);
-  test("[\\d\\S]", "Проверка123", 0);
-  test("[^\\S\\d]", "Проверка123", 11);
-  test("[^\\d\\S]", "Проверка123", 11);
-
-  test("[ \\S]", " Проверка ", 0);
-  test("[\\S ]", " Проверка ", 0);
-  test("[ф \\S]", " Проверка ", 0);
-  test("[\\Sф ]", " Проверка ", 0);
-
-  test("[^р\\S]", " Проверка ", 8);
-  test("[^\\Sр]", " Проверка ", 8);
-  test("[^р\\s]", " Проверка ", 4);
-  test("[^\\sр]", " Проверка ", 4);
-
-  test("[ф \\s\\S]", "Проверка \\r\\n", 0);
-  test("[\\S\\sф ]", "Проверка \\r\\n", 0);
-
-  test("[^z]", "Проверка \\r\\n", 0);
-  test("[^ф]", "Проверка \\r\\n", 0);
-}
diff --git a/tests/corelib_2/regexp/no-extensions_test.dart b/tests/corelib_2/regexp/no-extensions_test.dart
deleted file mode 100644
index 8e717c9ca3b..00000000000
--- a/tests/corelib_2/regexp/no-extensions_test.dart
+++ /dev/null
@@ -1,96 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description(
-      'Tests that regular expressions do not have extensions that diverge from the JavaScript specification. ' +
-          'Because WebKit originally used a copy of PCRE, various non-JavaScript regular expression features were historically present. ' +
-          'Also tests various related edge cases.');
-
-  shouldBeNull(new RegExp(r"\\x{41}").firstMatch("yA1"));
-  assertEquals(new RegExp(r"[\x{41}]").firstMatch("yA1").group(0), "1");
-  assertEquals(new RegExp(r"\x1g").firstMatch("x1g").group(0), "x1g");
-  assertEquals(new RegExp(r"[\x1g]").firstMatch("x").group(0), "x");
-  assertEquals(new RegExp(r"[\x1g]").firstMatch("1").group(0), "1");
-  assertEquals(
-      new RegExp(r"\2147483648")
-          .firstMatch(new String.fromCharCode(140) + "7483648")
-          .group(0),
-      new String.fromCharCode(140) + "7483648");
-  assertEquals(new RegExp(r"\4294967296").firstMatch("\"94967296").group(0),
-      "\"94967296");
-  assertEquals(new RegExp(r"\8589934592").firstMatch("\8589934592").group(0),
-      "\8589934592");
-  assertEquals(
-      "\nAbc\n".replaceAllMapped(new RegExp(r"(\n)[^\n]+$"), (m) => m.group(1)),
-      "\nAbc\n");
-  shouldBeNull(new RegExp(r"x$").firstMatch("x\n"));
-  assertThrows(() => new RegExp(r"x++"));
-  shouldBeNull(new RegExp(r"[]]").firstMatch("]"));
-
-  assertEquals(new RegExp(r"\060").firstMatch("y01").group(0), "0");
-  assertEquals(new RegExp(r"[\060]").firstMatch("y01").group(0), "0");
-  assertEquals(new RegExp(r"\606").firstMatch("y06").group(0), "06");
-  assertEquals(new RegExp(r"[\606]").firstMatch("y06").group(0), "0");
-  assertEquals(new RegExp(r"[\606]").firstMatch("y6").group(0), "6");
-  assertEquals(new RegExp(r"\101").firstMatch("yA1").group(0), "A");
-  assertEquals(new RegExp(r"[\101]").firstMatch("yA1").group(0), "A");
-  assertEquals(new RegExp(r"\1011").firstMatch("yA1").group(0), "A1");
-  assertEquals(new RegExp(r"[\1011]").firstMatch("yA1").group(0), "A");
-  assertEquals(new RegExp(r"[\1011]").firstMatch("y1").group(0), "1");
-  assertEquals(
-      new RegExp(r"\10q")
-          .firstMatch("y" + new String.fromCharCode(8) + "q")
-          .group(0),
-      new String.fromCharCode(8) + "q");
-  assertEquals(
-      new RegExp(r"[\10q]")
-          .firstMatch("y" + new String.fromCharCode(8) + "q")
-          .group(0),
-      new String.fromCharCode(8));
-  assertEquals(
-      new RegExp(r"\1q")
-          .firstMatch("y" + new String.fromCharCode(1) + "q")
-          .group(0),
-      new String.fromCharCode(1) + "q");
-  assertEquals(
-      new RegExp(r"[\1q]")
-          .firstMatch("y" + new String.fromCharCode(1) + "q")
-          .group(0),
-      new String.fromCharCode(1));
-  assertEquals(new RegExp(r"[\1q]").firstMatch("yq").group(0), "q");
-  assertEquals(new RegExp(r"\8q").firstMatch("\8q").group(0), "\8q");
-  assertEquals(new RegExp(r"[\8q]").firstMatch("y8q").group(0), "8");
-  assertEquals(new RegExp(r"[\8q]").firstMatch("yq").group(0), "q");
-  shouldBe(new RegExp(r"(x)\1q").firstMatch("xxq"), ["xxq", "x"]);
-  shouldBe(new RegExp(r"(x)[\1q]").firstMatch("xxq"), ["xq", "x"]);
-  shouldBe(
-      new RegExp(r"(x)[\1q]").firstMatch("xx" + new String.fromCharCode(1)),
-      ["x" + new String.fromCharCode(1), "x"]);
-}
diff --git a/tests/corelib_2/regexp/non-bmp_test.dart b/tests/corelib_2/regexp/non-bmp_test.dart
deleted file mode 100644
index 1bdf7434826..00000000000
--- a/tests/corelib_2/regexp/non-bmp_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description('Tests that regular expressions treat non-BMP characters as two separate characters. ' +
-      'From a Unicode correctness point of view this is wrong, but it is what other browsers do. ' +
-      'And given that we store strings as UTF-16, it is also more efficient to implement. ' +
-      'Also test some other cases related to UTF-8 and UTF-16.');
-
-  var surrogatePair =
-      new String.fromCharCode(0xD800) + new String.fromCharCode(0xDC00);
-
-  assertEquals(new RegExp(r".").firstMatch(surrogatePair).group(0).length, 1);
-  assertEquals(new RegExp(r"\D").firstMatch(surrogatePair).group(0).length, 1);
-  assertEquals(new RegExp(r"\S").firstMatch(surrogatePair).group(0).length, 1);
-  assertEquals(new RegExp(r"\W").firstMatch(surrogatePair).group(0).length, 1);
-  assertEquals(
-      new RegExp(r"[^x]").firstMatch(surrogatePair).group(0).length, 1);
-
-  assertEquals(
-      new RegExp(r".{1,2}")
-          .firstMatch("!!" + new String.fromCharCode(0xA1))
-          .group(0)
-          .length,
-      2);
-  shouldBeNull(new RegExp(r".").firstMatch(""));
-}
diff --git a/tests/corelib_2/regexp/non-capturing-backtracking_test.dart b/tests/corelib_2/regexp/non-capturing-backtracking_test.dart
deleted file mode 100644
index c6448a33f7b..00000000000
--- a/tests/corelib_2/regexp/non-capturing-backtracking_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description(
-      "This page tests for proper backtracking with greedy quantifiers and non-capturing parentheses.");
-
-  var re = new RegExp(r"(?:a*)a");
-  shouldBe(re.firstMatch('a'), ['a']);
-}
diff --git a/tests/corelib_2/regexp/non-capturing-groups_test.dart b/tests/corelib_2/regexp/non-capturing-groups_test.dart
deleted file mode 100644
index d131843413c..00000000000
--- a/tests/corelib_2/regexp/non-capturing-groups_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description(
-      'Test for behavior of non-capturing groups, as described in <a href="http://blog.stevenlevithan.com/archives/npcg-javascript">' +
-          'a blog post by Steven Levithan</a> and <a href="http://bugs.webkit.org/show_bug.cgi?id=14931">bug 14931</a>.');
-
-  shouldBeTrue(new RegExp(r"(x)?\1y").hasMatch("y"));
-  shouldBe(new RegExp(r"(x)?\1y").firstMatch("y"), ["y", null]);
-  shouldBe(new RegExp(r"(x)?y").firstMatch("y"), ["y", null]);
-  shouldBe(firstMatch("y", new RegExp(r"(x)?\1y")), ["y", null]);
-  shouldBe(firstMatch("y", new RegExp(r"(x)?y")), ["y", null]);
-  shouldBe(firstMatch("y", new RegExp(r"(x)?\1y")), ["y", null]);
-  Expect.listEquals("y".split(new RegExp(r"(x)?\1y")), ["", ""]);
-  Expect.listEquals("y".split(new RegExp(r"(x)?y")), ["", ""]);
-  assertEquals("y".indexOf(new RegExp(r"(x)?\1y")), 0);
-  assertEquals("y".replaceAll(new RegExp(r"(x)?\1y"), "z"), "z");
-  assertEquals(
-      "y".replaceAllMapped(new RegExp(r"(x)?y"), (m) => m.group(1)), "null");
-  assertEquals(
-      "y".replaceAllMapped(new RegExp(r"(x)?\1y"), (m) => m.group(1)), "null");
-  assertEquals(
-      "y".replaceAllMapped(new RegExp(r"(x)?y"), (m) => m.group(1)), "null");
-}
diff --git a/tests/corelib_2/regexp/non-character_test.dart b/tests/corelib_2/regexp/non-character_test.dart
deleted file mode 100644
index 1a0c69c1a04..00000000000
--- a/tests/corelib_2/regexp/non-character_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description(
-      'Test for regular expressions with non-character values in them, specifically in character classes.');
-
-  shouldBeNull(firstMatch("F", new RegExp(r"[\uD7FF]")));
-  shouldBeNull(firstMatch("0", new RegExp(r"[\uD800]")));
-  shouldBeNull(firstMatch("F", new RegExp(r"[\uDFFF]")));
-  shouldBeNull(firstMatch("E", new RegExp(r"[\uE000]")));
-  shouldBeNull(firstMatch("y", new RegExp(r"[\uFDBF]")));
-  shouldBeNull(firstMatch("y", new RegExp(r"[\uFDD0]")));
-  shouldBeNull(firstMatch("y", new RegExp(r"[\uFDEF]")));
-  shouldBeNull(firstMatch("y", new RegExp(r"[\uFDF0]")));
-  shouldBeNull(firstMatch("y", new RegExp(r"[\uFEFF]")));
-  shouldBeNull(firstMatch("y", new RegExp(r"[\uFEFF]")));
-  shouldBeNull(firstMatch("y", new RegExp(r"[\uFFFE]")));
-  shouldBeNull(firstMatch("y", new RegExp(r"[\uFFFF]")));
-  shouldBeNull(firstMatch("y", new RegExp(r"[\u10FFFF]")));
-  shouldBeNull(firstMatch("y", new RegExp(r"[\u110000]")));
-}
diff --git a/tests/corelib_2/regexp/non-greedy-parentheses_test.dart b/tests/corelib_2/regexp/non-greedy-parentheses_test.dart
deleted file mode 100644
index 69a3ef352d5..00000000000
--- a/tests/corelib_2/regexp/non-greedy-parentheses_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description(
-      'Test for regression against <a href="https://bugs.webkit.org/show_bug.cgi?id=39289">Wrong result in case of non-iterative matching of subpatterns in non-greedy cases in YARR Interpreter</a>');
-
-  shouldBe(firstMatch("a", new RegExp(r"(a)??")), ["", null]);
-  shouldBe(firstMatch("b", new RegExp(r"(a)??")), ["", null]);
-  shouldBe(firstMatch("ab", new RegExp(r"(a)??b")), ["ab", "a"]);
-  shouldBe(firstMatch("aaab", new RegExp(r"(a+)??b")), ["aaab", "aaa"]);
-  shouldBe(
-      firstMatch("abbc", new RegExp(r"(a)??(b+)??c")), ["abbc", "a", "bb"]);
-  shouldBe(firstMatch("ac", new RegExp(r"(a)??(b)??c")), ["ac", "a", null]);
-  shouldBe(firstMatch("abc", new RegExp(r"(a(b)??)??c")), ["abc", "ab", "b"]);
-  shouldBe(firstMatch("ac", new RegExp(r"(a(b)??)??c")), ["ac", "a", null]);
-}
diff --git a/tests/corelib_2/regexp/norepeat_test.dart b/tests/corelib_2/regexp/norepeat_test.dart
deleted file mode 100644
index c2a1d3d8309..00000000000
--- a/tests/corelib_2/regexp/norepeat_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description('Test for https://bugs.webkit.org/show_bug.cgi?id=46077');
-
-  var re = new RegExp(r"^b|^cd");
-  var str = "abcd";
-  shouldBeFalse(re.hasMatch(str));
-}
diff --git a/tests/corelib_2/regexp/overflow_test.dart b/tests/corelib_2/regexp/overflow_test.dart
deleted file mode 100644
index af3e2dcc8ee..00000000000
--- a/tests/corelib_2/regexp/overflow_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description(
-      "This test checks expressions with alternative lengths of appox. 2^31.");
-
-  var regexp1 = new RegExp(r"(?:(?=g))|(?:m).{2147483648,}");
-  shouldBeNull(regexp1.firstMatch(''));
-
-  var regexp2 = new RegExp(r"(?:(?=g)).{2147483648,}");
-  shouldBeNull(regexp2.firstMatch(''));
-
-  var s3 =
-      r"&{6}u4a64YfQP{C}u88c4u5772Qu8693{4294967167}u85f2u7f3fs((uf202){4})u5bc6u1947";
-  var regexp3 = new RegExp(s3);
-  shouldBeNull(regexp3.firstMatch(s3));
-
-  var regexp4 = new RegExp(r"[^a$]{4294967295}");
-  shouldBeNull(regexp4.firstMatch(s3));
-}
diff --git a/tests/corelib_2/regexp/parentheses_test.dart b/tests/corelib_2/regexp/parentheses_test.dart
deleted file mode 100644
index 87bbe1362e5..00000000000
--- a/tests/corelib_2/regexp/parentheses_test.dart
+++ /dev/null
@@ -1,360 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description("This page tests handling of parentheses subexpressions.");
-
-  var regexp1 = new RegExp(r"(a|A)(b|B)");
-  shouldBe(regexp1.firstMatch('abc'), ['ab', 'a', 'b']);
-
-  var regexp2 = new RegExp(r"(a((b)|c|d))e");
-  shouldBe(regexp2.firstMatch('abacadabe'), ['abe', 'ab', 'b', 'b']);
-
-  var regexp3 = new RegExp(r"(a(b|(c)|d))e");
-  shouldBe(regexp3.firstMatch('abacadabe'), ['abe', 'ab', 'b', null]);
-
-  var regexp4 = new RegExp(r"(a(b|c|(d)))e");
-  shouldBe(regexp4.firstMatch('abacadabe'), ['abe', 'ab', 'b', null]);
-
-  var regexp5 = new RegExp(r"(a((b)|(c)|(d)))e");
-  shouldBe(
-      regexp5.firstMatch('abacadabe'), ['abe', 'ab', 'b', 'b', null, null]);
-
-  var regexp6 = new RegExp(r"(a((b)|(c)|(d)))");
-  shouldBe(regexp6.firstMatch('abcde'), ['ab', 'ab', 'b', 'b', null, null]);
-
-  var regexp7 = new RegExp(r"(a(b)??)??c");
-  shouldBe(regexp7.firstMatch('abc'), ['abc', 'ab', 'b']);
-
-  var regexp8 = new RegExp(r"(a|(e|q))(x|y)");
-  shouldBe(regexp8.firstMatch('bcaddxqy'), ['qy', 'q', 'q', 'y']);
-
-  var regexp9 = new RegExp(r"((t|b)?|a)$");
-  shouldBe(
-      regexp9.firstMatch('asdfjejgsdflaksdfjkeljghkjea'), ['a', 'a', null]);
-
-  var regexp10 = new RegExp(r"(?:h|e?(?:t|b)?|a?(?:t|b)?)(?:$)");
-  shouldBe(regexp10.firstMatch('asdfjejgsdflaksdfjkeljghat'), ['at']);
-
-  var regexp11 = new RegExp(r"([Jj]ava([Ss]cript)?)\sis\s(fun\w*)");
-  shouldBeNull(regexp11.firstMatch(
-      'Developing with JavaScript is dangerous, do not try it without assistance'));
-
-  var regexp12 = new RegExp(r"(?:(.+), )?(.+), (..) to (?:(.+), )?(.+), (..)");
-  shouldBe(regexp12.firstMatch('Seattle, WA to Buckley, WA'), [
-    'Seattle, WA to Buckley, WA',
-    null,
-    'Seattle',
-    'WA',
-    null,
-    'Buckley',
-    'WA'
-  ]);
-
-  var regexp13 = new RegExp(r"(A)?(A.*)");
-  shouldBe(regexp13.firstMatch('zxcasd;fl\ ^AaaAAaaaf;lrlrzs'),
-      ['AaaAAaaaf;lrlrzs', null, 'AaaAAaaaf;lrlrzs']);
-
-  var regexp14 = new RegExp(r"(a)|(b)");
-  shouldBe(regexp14.firstMatch('b'), ['b', null, 'b']);
-
-  var regexp15 = new RegExp(r"^(?!(ab)de|x)(abd)(f)");
-  shouldBe(regexp15.firstMatch('abdf'), ['abdf', null, 'abd', 'f']);
-
-  var regexp16 = new RegExp(r"(a|A)(b|B)");
-  shouldBe(regexp16.firstMatch('abc'), ['ab', 'a', 'b']);
-
-  var regexp17 = new RegExp(r"(a|d|q|)x", caseSensitive: false);
-  shouldBe(regexp17.firstMatch('bcaDxqy'), ['Dx', 'D']);
-
-  var regexp18 = new RegExp(r"^.*?(:|$)");
-  shouldBe(regexp18.firstMatch('Hello: World'), ['Hello:', ':']);
-
-  var regexp19 = new RegExp(r"(ab|^.{0,2})bar");
-  shouldBe(regexp19.firstMatch('barrel'), ['bar', '']);
-
-  var regexp20 = new RegExp(r"(?:(?!foo)...|^.{0,2})bar(.*)");
-  shouldBe(regexp20.firstMatch('barrel'), ['barrel', 'rel']);
-  shouldBe(regexp20.firstMatch('2barrel'), ['2barrel', 'rel']);
-
-  var regexp21 = new RegExp(r"([a-g](b|B)|xyz)");
-  shouldBe(regexp21.firstMatch('abc'), ['ab', 'ab', 'b']);
-
-  var regexp22 = new RegExp(r"(?:^|;)\s*abc=([^;]*)");
-  shouldBeNull(regexp22.firstMatch('abcdlskfgjdslkfg'));
-
-  var regexp23 = new RegExp("\"[^<\"]*\"|'[^<']*'");
-  shouldBe(regexp23.firstMatch('<html xmlns=\"http://www.w3.org/1999/xhtml\"'),
-      ['\"http://www.w3.org/1999/xhtml\"']);
-
-  var regexp24 = new RegExp(r"^(?:(?=abc)\w{3}:|\d\d)$");
-  shouldBeNull(regexp24.firstMatch('123'));
-
-  var regexp25 = new RegExp(r"^\s*(\*|[\w\-]+)(\b|$)?");
-  shouldBe(regexp25.firstMatch('this is a test'), ['this', 'this', null]);
-  shouldBeNull(regexp25.firstMatch('!this is a test'));
-
-  var regexp26 = new RegExp(r"a(b)(a*)|aaa");
-  shouldBe(regexp26.firstMatch('aaa'), ['aaa', null, null]);
-
-  var regexp27 = new RegExp("^" +
-          "(?:" +
-          "([^:/?#]+):" + /* scheme */
-          ")?" +
-          "(?:" +
-          "(//)" + /* authorityRoot */
-          "(" + /* authority */
-          "(?:" +
-          "(" + /* userInfo */
-          "([^:@]*)" + /* user */
-          ":?" +
-          "([^:@]*)" + /* password */
-          ")?" +
-          "@" +
-          ")?" +
-          "([^:/?#]*)" + /* domain */
-          "(?::(\\d*))?" + /* port */
-          ")" +
-          ")?" +
-          "([^?#]*)" + /*path*/
-          "(?:\\?([^#]*))?" + /* queryString */
-          "(?:#(.*))?" /*fragment */
-      );
-  shouldBe(
-      regexp27
-          .firstMatch('file:///Users/Someone/Desktop/HelloWorld/index.html'),
-      [
-        'file:///Users/Someone/Desktop/HelloWorld/index.html',
-        'file',
-        '//',
-        '',
-        null,
-        null,
-        null,
-        '',
-        null,
-        '/Users/Someone/Desktop/HelloWorld/index.html',
-        null,
-        null
-      ]);
-
-  var regexp28 = new RegExp("^" +
-      "(?:" +
-      "([^:/?#]+):" + /* scheme */
-      ")?" +
-      "(?:" +
-      "(//)" + /* authorityRoot */
-      "(" + /* authority */
-      "(" + /* userInfo */
-      "([^:@]*)" + /* user */
-      ":?" +
-      "([^:@]*)" + /* password */
-      ")?" +
-      "@" +
-      ")" +
-      ")?");
-  shouldBe(
-      regexp28
-          .firstMatch('file:///Users/Someone/Desktop/HelloWorld/index.html'),
-      ['file:', 'file', null, null, null, null, null]);
-
-  var regexp29 = new RegExp(r'^\s*((\[[^\]]+\])|(u?)("[^"]+"))\s*');
-  shouldBeNull(regexp29.firstMatch('Committer:'));
-
-  var regexp30 = new RegExp(r'^\s*((\[[^\]]+\])|m(u?)("[^"]+"))\s*');
-  shouldBeNull(regexp30.firstMatch('Committer:'));
-
-  var regexp31 = new RegExp(r'^\s*(m(\[[^\]]+\])|m(u?)("[^"]+"))\s*');
-  shouldBeNull(regexp31.firstMatch('Committer:'));
-
-  var regexp32 = new RegExp(r'\s*(m(\[[^\]]+\])|m(u?)("[^"]+"))\s*');
-  shouldBeNull(regexp32.firstMatch('Committer:'));
-
-  var regexp33 = new RegExp('^(?:(?:(a)(xyz|[^>"\'\s]*)?)|(/?>)|.[^\w\s>]*)');
-  shouldBe(regexp33.firstMatch('> <head>'), ['>', null, null, '>']);
-
-  var regexp34 = new RegExp(r"(?:^|\b)btn-\S+");
-  shouldBeNull(regexp34.firstMatch('xyz123'));
-  shouldBe(regexp34.firstMatch('btn-abc'), ['btn-abc']);
-  shouldBeNull(regexp34.firstMatch('btn- abc'));
-  shouldBeNull(regexp34.firstMatch('XXbtn-abc'));
-  shouldBe(regexp34.firstMatch('XX btn-abc'), ['btn-abc']);
-
-  var regexp35 = new RegExp(r"^((a|b)(x|xxx)|)$");
-  shouldBe(regexp35.firstMatch('ax'), ['ax', 'ax', 'a', 'x']);
-  shouldBeNull(regexp35.firstMatch('axx'));
-  shouldBe(regexp35.firstMatch('axxx'), ['axxx', 'axxx', 'a', 'xxx']);
-  shouldBe(regexp35.firstMatch('bx'), ['bx', 'bx', 'b', 'x']);
-  shouldBeNull(regexp35.firstMatch('bxx'));
-  shouldBe(regexp35.firstMatch('bxxx'), ['bxxx', 'bxxx', 'b', 'xxx']);
-
-  var regexp36 = new RegExp(r"^((\/|\.|\-)(\d\d|\d\d\d\d)|)$");
-  shouldBe(regexp36.firstMatch('/2011'), ['/2011', '/2011', '/', '2011']);
-  shouldBe(regexp36.firstMatch('/11'), ['/11', '/11', '/', '11']);
-  shouldBeNull(regexp36.firstMatch('/123'));
-
-  var regexp37 = new RegExp(
-      r"^([1][0-2]|[0]\d|\d)(\/|\.|\-)([0-2]\d|[3][0-1]|\d)((\/|\.|\-)(\d\d|\d\d\d\d)|)$");
-  shouldBe(regexp37.firstMatch('7/4/1776'),
-      ['7/4/1776', '7', '/', '4', '/1776', '/', '1776']);
-  shouldBe(regexp37.firstMatch('07-04-1776'),
-      ['07-04-1776', '07', '-', '04', '-1776', '-', '1776']);
-
-  var regexp38 = new RegExp(r"^(z|(x|xx)|b|)$");
-  shouldBe(regexp38.firstMatch('xx'), ['xx', 'xx', 'xx']);
-  shouldBe(regexp38.firstMatch('b'), ['b', 'b', null]);
-  shouldBe(regexp38.firstMatch('z'), ['z', 'z', null]);
-  shouldBe(regexp38.firstMatch(''), ['', '', null]);
-
-  var regexp39 = new RegExp(r"(8|((?=P)))?");
-  shouldBe(regexp39.firstMatch(''), ['', null, null]);
-  shouldBe(regexp39.firstMatch('8'), ['8', '8', null]);
-  shouldBe(regexp39.firstMatch('zP'), ['', null, null]);
-
-  var regexp40 = new RegExp(r"((8)|((?=P){4}))?()");
-  shouldBe(regexp40.firstMatch(''), ['', null, null, null, '']);
-  shouldBe(regexp40.firstMatch('8'), ['8', '8', '8', null, '']);
-  shouldBe(regexp40.firstMatch('zPz'), ['', null, null, null, '']);
-  shouldBe(regexp40.firstMatch('zPPz'), ['', null, null, null, '']);
-  shouldBe(regexp40.firstMatch('zPPPz'), ['', null, null, null, '']);
-  shouldBe(regexp40.firstMatch('zPPPPz'), ['', null, null, null, '']);
-
-  var regexp41 = new RegExp(
-      r"(([\w\-]+:\/\/?|www[.])[^\s()<>]+(?:([\w\d]+)|([^\[:punct:\]\s()<>\W]|\/)))");
-  shouldBe(
-      regexp41.firstMatch(
-          'Here is a link: http://www.acme.com/our_products/index.html. That is all we want!'),
-      [
-        'http://www.acme.com/our_products/index.html',
-        'http://www.acme.com/our_products/index.html',
-        'http://',
-        'l',
-        null
-      ]);
-
-  var regexp42 = new RegExp(r"((?:(4)?))?");
-  shouldBe(regexp42.firstMatch(''), ['', null, null]);
-  shouldBe(regexp42.firstMatch('4'), ['4', '4', '4']);
-  shouldBe(regexp42.firstMatch('4321'), ['4', '4', '4']);
-
-  shouldBeTrue(new RegExp(r"(?!(?=r{0}){2,})|((z)?)?", caseSensitive: false)
-      .hasMatch(''));
-
-  var regexp43 = new RegExp(r"(?!(?:\1+s))");
-  shouldBe(regexp43.firstMatch('SSS'), ['']);
-
-  var regexp44 = new RegExp(r"(?!(?:\3+(s+?)))");
-  shouldBe(regexp44.firstMatch('SSS'), ['', null]);
-
-  var regexp45 = new RegExp(r"((?!(?:|)v{2,}|))");
-  shouldBeNull(regexp45.firstMatch('vt'));
-
-  var regexp46 = new RegExp(r"(w)(?:5{3}|())|pk");
-  shouldBeNull(regexp46.firstMatch('5'));
-  shouldBe(regexp46.firstMatch('pk'), ['pk', null, null]);
-  shouldBe(regexp46.firstMatch('Xw555'), ['w555', 'w', null]);
-  shouldBe(regexp46.firstMatch('Xw55pk5'), ['w', 'w', '']);
-
-  var regexp47 = new RegExp(r"(.*?)(?:(?:\?(.*?)?)?)(?:(?:#)?)$");
-  shouldBe(regexp47.firstMatch('/www.acme.com/this/is/a/path/file.txt'), [
-    '/www.acme.com/this/is/a/path/file.txt',
-    '/www.acme.com/this/is/a/path/file.txt',
-    null
-  ]);
-
-  var regexp48 = new RegExp(
-      r"^(?:(\w+):\/*([\w\.\-\d]+)(?::(\d+)|)(?=(?:\/|$))|)(?:$|\/?(.*?)(?:\?(.*?)?|)(?:#(.*)|)$)");
-  shouldBe(regexp48.firstMatch('http://www.acme.com/this/is/a/path/file.txt'), [
-    'http://www.acme.com/this/is/a/path/file.txt',
-    'http',
-    'www.acme.com',
-    null,
-    'this/is/a/path/file.txt',
-    null,
-    null
-  ]);
-
-  var regexp49 = new RegExp(
-      r"(?:([^:]*?)(?:(?:\?(.*?)?)?)(?:(?:#)?)$)|(?:^(?:(\w+):\/*([\w\.\-\d]+)(?::(\d+)|)(?=(?:\/|$))|)(?:$|\/?(.*?)(?:\?(.*?)?|)(?:#(.*)|)$))");
-  shouldBe(regexp49.firstMatch('http://www.acme.com/this/is/a/path/file.txt'), [
-    'http://www.acme.com/this/is/a/path/file.txt',
-    null,
-    null,
-    'http',
-    'www.acme.com',
-    null,
-    'this/is/a/path/file.txt',
-    null,
-    null
-  ]);
-
-  var regexp50 = new RegExp(r"((a)b{28,}c|d)x");
-  shouldBeNull(regexp50.firstMatch('((a)b{28,}c|d)x'));
-  shouldBe(regexp50.firstMatch('abbbbbbbbbbbbbbbbbbbbbbbbbbbbcx'), [
-    'abbbbbbbbbbbbbbbbbbbbbbbbbbbbcx',
-    'abbbbbbbbbbbbbbbbbbbbbbbbbbbbc',
-    'a'
-  ]);
-  shouldBe(regexp50.firstMatch('dx'), ['dx', 'd', null]);
-
-  var s = "((.\s{-}).{28,}\P{Yi}?{,30}\|.)\x9e{-,}\P{Any}";
-  var regexp51 = new RegExp(s);
-  shouldBeNull(regexp51.firstMatch('abc'));
-  shouldBe(regexp51.firstMatch(s), [')\x9e{-,}P{Any}', ')', null]);
-
-  var regexp52 = new RegExp(r"(Rob)|(Bob)|(Robert)|(Bobby)");
-  shouldBe(regexp52.firstMatch('Hi Bob'), ['Bob', null, 'Bob', null, null]);
-
-  // Test cases discovered by fuzzing that crashed the compiler.
-  var regexp53 = new RegExp(
-      r"(?=(?:(?:(gB)|(?!cs|<))((?=(?!v6){0,})))|(?=#)+?)",
-      multiLine: true);
-  shouldBe(regexp53.firstMatch('#'), ['', null, '']);
-  var regexp54 = new RegExp(r"((?:(?:()|(?!))((?=(?!))))|())", multiLine: true);
-  shouldBe(regexp54.firstMatch('#'), ['', '', null, null, '']);
-  var regexp55 = new RegExp(r"(?:(?:(?:a?|(?:))((?:)))|a?)", multiLine: true);
-  shouldBe(regexp55.firstMatch('#'), ['', '']);
-
-  // Test evaluation order of empty subpattern alternatives.
-  var regexp56 = new RegExp(r"(|a)");
-  shouldBe(regexp56.firstMatch('a'), ['', '']);
-  var regexp57 = new RegExp(r"(a|)");
-  shouldBe(regexp57.firstMatch('a'), ['a', 'a']);
-
-  // Tests that non-greedy repeat quantified parentheses will backtrack through multiple frames of subpattern matches.
-  var regexp58 = new RegExp(r"a|b(?:[^b])*?c");
-  shouldBe(regexp58.firstMatch('badbc'), ['a']);
-  var regexp59 = new RegExp(r"(X(?:.(?!X))*?Y)|(Y(?:.(?!Y))*?Z)");
-  Expect.listEquals(
-      regexp59
-          .allMatches('Y aaa X Match1 Y aaa Y Match2 Z')
-          .map((m) => m.group(0))
-          .toList(),
-      ['X Match1 Y', 'Y Match2 Z']);
-}
diff --git a/tests/corelib_2/regexp/pcre-test-4_test.dart b/tests/corelib_2/regexp/pcre-test-4_test.dart
deleted file mode 100644
index a73e42a75c3..00000000000
--- a/tests/corelib_2/regexp/pcre-test-4_test.dart
+++ /dev/null
@@ -1,1033 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description(
-      "A chunk of our port of PCRE's test suite, adapted to be more applicable to JavaScript.");
-
-  var regex0 = new RegExp(r"a.b");
-  var input0 = "acb";
-  var results = ["acb"];
-  shouldBe(regex0.firstMatch(input0), results);
-  var input1 = "a\x7fb";
-  results = ["a\u007fb"];
-  shouldBe(regex0.firstMatch(input1), results);
-  var input2 = "a\u0100b";
-  results = ["a\u0100b"];
-  shouldBe(regex0.firstMatch(input2), results);
-  // Failers
-  var input3 = "a\nb";
-  results = null;
-  shouldBe(regex0.firstMatch(input3), results);
-
-  var regex1 = new RegExp(r"a(.{3})b");
-  input0 = "a\u4000xyb";
-  results = ["a\u4000xyb", "\u4000xy"];
-  shouldBe(regex1.firstMatch(input0), results);
-  input1 = "a\u4000\x7fyb";
-  results = ["a\u4000\u007fyb", "\u4000\u007fy"];
-  shouldBe(regex1.firstMatch(input1), results);
-  input2 = "a\u4000\u0100yb";
-  results = ["a\u4000\u0100yb", "\u4000\u0100y"];
-  shouldBe(regex1.firstMatch(input2), results);
-  // Failers
-  input3 = "a\u4000b";
-  results = null;
-  shouldBe(regex1.firstMatch(input3), results);
-  var input4 = "ac\ncb";
-  results = null;
-  shouldBe(regex1.firstMatch(input4), results);
-
-  var regex2 = new RegExp(r"a(.*?)(.)");
-  input0 = "a\xc0\x88b";
-  results = ["a\xc0", "", "\xc0"];
-  shouldBe(regex2.firstMatch(input0), results);
-
-  var regex3 = new RegExp(r"a(.*?)(.)");
-  input0 = "a\u0100b";
-  results = ["a\u0100", "", "\u0100"];
-  shouldBe(regex3.firstMatch(input0), results);
-
-  var regex4 = new RegExp(r"a(.*)(.)");
-  input0 = "a\xc0\x88b";
-  results = ["a\xc0\x88b", "\xc0\x88", "b"];
-  shouldBe(regex4.firstMatch(input0), results);
-
-  var regex5 = new RegExp(r"a(.*)(.)");
-  input0 = "a\u0100b";
-  results = ["a\u0100b", "\u0100", "b"];
-  shouldBe(regex5.firstMatch(input0), results);
-
-  var regex6 = new RegExp(r"a(.)(.)");
-  input0 = "a\xc0\x92bcd";
-  results = ["a\xc0\x92", "\xc0", "\x92"];
-  shouldBe(regex6.firstMatch(input0), results);
-
-  var regex7 = new RegExp(r"a(.)(.)");
-  input0 = "a\u0240bcd";
-  results = ["a\u0240b", "\u0240", "b"];
-  shouldBe(regex7.firstMatch(input0), results);
-
-  var regex8 = new RegExp(r"a(.?)(.)");
-  input0 = "a\xc0\x92bcd";
-  results = ["a\xc0\x92", "\xc0", "\x92"];
-  shouldBe(regex8.firstMatch(input0), results);
-
-  var regex9 = new RegExp(r"a(.?)(.)");
-  input0 = "a\u0240bcd";
-  results = ["a\u0240b", "\u0240", "b"];
-  shouldBe(regex9.firstMatch(input0), results);
-
-  var regex10 = new RegExp(r"a(.??)(.)");
-  input0 = "a\xc0\x92bcd";
-  results = ["a\xc0", "", "\xc0"];
-  shouldBe(regex10.firstMatch(input0), results);
-
-  var regex11 = new RegExp(r"a(.??)(.)");
-  input0 = "a\u0240bcd";
-  results = ["a\u0240", "", "\u0240"];
-  shouldBe(regex11.firstMatch(input0), results);
-
-  var regex12 = new RegExp(r"a(.{3})b");
-  input0 = "a\u1234xyb";
-  results = ["a\u1234xyb", "\u1234xy"];
-  shouldBe(regex12.firstMatch(input0), results);
-  input1 = "a\u1234\u4321yb";
-  results = ["a\u1234\u4321yb", "\u1234\u4321y"];
-  shouldBe(regex12.firstMatch(input1), results);
-  input2 = "a\u1234\u4321\u3412b";
-  results = ["a\u1234\u4321\u3412b", "\u1234\u4321\u3412"];
-  shouldBe(regex12.firstMatch(input2), results);
-  // Failers
-  input3 = "a\u1234b";
-  results = null;
-  shouldBe(regex12.firstMatch(input3), results);
-  input4 = "ac\ncb";
-  results = null;
-  shouldBe(regex12.firstMatch(input4), results);
-
-  var regex13 = new RegExp(r"a(.{3,})b");
-  input0 = "a\u1234xyb";
-  results = ["a\u1234xyb", "\u1234xy"];
-  shouldBe(regex13.firstMatch(input0), results);
-  input1 = "a\u1234\u4321yb";
-  results = ["a\u1234\u4321yb", "\u1234\u4321y"];
-  shouldBe(regex13.firstMatch(input1), results);
-  input2 = "a\u1234\u4321\u3412b";
-  results = ["a\u1234\u4321\u3412b", "\u1234\u4321\u3412"];
-  shouldBe(regex13.firstMatch(input2), results);
-  input3 = "axxxxbcdefghijb";
-  results = ["axxxxbcdefghijb", "xxxxbcdefghij"];
-  shouldBe(regex13.firstMatch(input3), results);
-  input4 = "a\u1234\u4321\u3412\u3421b";
-  results = ["a\u1234\u4321\u3412\u3421b", "\u1234\u4321\u3412\u3421"];
-  shouldBe(regex13.firstMatch(input4), results);
-  // Failers
-  var input5 = "a\u1234b";
-  results = null;
-  shouldBe(regex13.firstMatch(input5), results);
-
-  var regex14 = new RegExp(r"a(.{3,}?)b");
-  input0 = "a\u1234xyb";
-  results = ["a\u1234xyb", "\u1234xy"];
-  shouldBe(regex14.firstMatch(input0), results);
-  input1 = "a\u1234\u4321yb";
-  results = ["a\u1234\u4321yb", "\u1234\u4321y"];
-  shouldBe(regex14.firstMatch(input1), results);
-  input2 = "a\u1234\u4321\u3412b";
-  results = ["a\u1234\u4321\u3412b", "\u1234\u4321\u3412"];
-  shouldBe(regex14.firstMatch(input2), results);
-  input3 = "axxxxbcdefghijb";
-  results = ["axxxxb", "xxxx"];
-  shouldBe(regex14.firstMatch(input3), results);
-  input4 = "a\u1234\u4321\u3412\u3421b";
-  results = ["a\u1234\u4321\u3412\u3421b", "\u1234\u4321\u3412\u3421"];
-  shouldBe(regex14.firstMatch(input4), results);
-  // Failers
-  input5 = "a\u1234b";
-  results = null;
-  shouldBe(regex14.firstMatch(input5), results);
-
-  var regex15 = new RegExp(r"a(.{3,5})b");
-  input0 = "a\u1234xyb";
-  results = ["a\u1234xyb", "\u1234xy"];
-  shouldBe(regex15.firstMatch(input0), results);
-  input1 = "a\u1234\u4321yb";
-  results = ["a\u1234\u4321yb", "\u1234\u4321y"];
-  shouldBe(regex15.firstMatch(input1), results);
-  input2 = "a\u1234\u4321\u3412b";
-  results = ["a\u1234\u4321\u3412b", "\u1234\u4321\u3412"];
-  shouldBe(regex15.firstMatch(input2), results);
-  input3 = "axxxxbcdefghijb";
-  results = ["axxxxb", "xxxx"];
-  shouldBe(regex15.firstMatch(input3), results);
-  input4 = "a\u1234\u4321\u3412\u3421b";
-  results = ["a\u1234\u4321\u3412\u3421b", "\u1234\u4321\u3412\u3421"];
-  shouldBe(regex15.firstMatch(input4), results);
-  input5 = "axbxxbcdefghijb";
-  results = ["axbxxb", "xbxx"];
-  shouldBe(regex15.firstMatch(input5), results);
-  var input6 = "axxxxxbcdefghijb";
-  results = ["axxxxxb", "xxxxx"];
-  shouldBe(regex15.firstMatch(input6), results);
-  // Failers
-  var input7 = "a\u1234b";
-  results = null;
-  shouldBe(regex15.firstMatch(input7), results);
-  var input8 = "axxxxxxbcdefghijb";
-  results = null;
-  shouldBe(regex15.firstMatch(input8), results);
-
-  var regex16 = new RegExp(r"a(.{3,5}?)b");
-  input0 = "a\u1234xyb";
-  results = ["a\u1234xyb", "\u1234xy"];
-  shouldBe(regex16.firstMatch(input0), results);
-  input1 = "a\u1234\u4321yb";
-  results = ["a\u1234\u4321yb", "\u1234\u4321y"];
-  shouldBe(regex16.firstMatch(input1), results);
-  input2 = "a\u1234\u4321\u3412b";
-  results = ["a\u1234\u4321\u3412b", "\u1234\u4321\u3412"];
-  shouldBe(regex16.firstMatch(input2), results);
-  input3 = "axxxxbcdefghijb";
-  results = ["axxxxb", "xxxx"];
-  shouldBe(regex16.firstMatch(input3), results);
-  input4 = "a\u1234\u4321\u3412\u3421b";
-  results = ["a\u1234\u4321\u3412\u3421b", "\u1234\u4321\u3412\u3421"];
-  shouldBe(regex16.firstMatch(input4), results);
-  input5 = "axbxxbcdefghijb";
-  results = ["axbxxb", "xbxx"];
-  shouldBe(regex16.firstMatch(input5), results);
-  input6 = "axxxxxbcdefghijb";
-  results = ["axxxxxb", "xxxxx"];
-  shouldBe(regex16.firstMatch(input6), results);
-  // Failers
-  input7 = "a\u1234b";
-  results = null;
-  shouldBe(regex16.firstMatch(input7), results);
-  input8 = "axxxxxxbcdefghijb";
-  results = null;
-  shouldBe(regex16.firstMatch(input8), results);
-
-  var regex17 = new RegExp(r"^[a\u00c0]");
-  // Failers
-  input0 = "\u0100";
-  results = null;
-  shouldBe(regex17.firstMatch(input0), results);
-
-  var regex21 = new RegExp(r"(?:\u0100){3}b");
-  input0 = "\u0100\u0100\u0100b";
-  results = ["\u0100\u0100\u0100b"];
-  shouldBe(regex21.firstMatch(input0), results);
-  // Failers
-  input1 = "\u0100\u0100b";
-  results = null;
-  shouldBe(regex21.firstMatch(input1), results);
-
-  var regex22 = new RegExp(r"\u00ab");
-  input0 = "\u00ab";
-  results = ["\u00ab"];
-  shouldBe(regex22.firstMatch(input0), results);
-  input1 = "\xc2\xab";
-  results = ["\u00ab"];
-  shouldBe(regex22.firstMatch(input1), results);
-  // Failers
-  input2 = "\x00{ab}";
-  results = null;
-  shouldBe(regex22.firstMatch(input2), results);
-
-  var regex30 = new RegExp(r"^[^a]{2}");
-  input0 = "\u0100bc";
-  results = ["\u0100b"];
-  shouldBe(regex30.firstMatch(input0), results);
-
-  var regex31 = new RegExp(r"^[^a]{2,}");
-  input0 = "\u0100bcAa";
-  results = ["\u0100bcA"];
-  shouldBe(regex31.firstMatch(input0), results);
-
-  var regex32 = new RegExp(r"^[^a]{2,}?");
-  input0 = "\u0100bca";
-  results = ["\u0100b"];
-  shouldBe(regex32.firstMatch(input0), results);
-
-  var regex33 = new RegExp(r"^[^a]{2}", caseSensitive: false);
-  input0 = "\u0100bc";
-  results = ["\u0100b"];
-  shouldBe(regex33.firstMatch(input0), results);
-
-  var regex34 = new RegExp(r"^[^a]{2,}", caseSensitive: false);
-  input0 = "\u0100bcAa";
-  results = ["\u0100bc"];
-  shouldBe(regex34.firstMatch(input0), results);
-
-  var regex35 = new RegExp(r"^[^a]{2,}?", caseSensitive: false);
-  input0 = "\u0100bca";
-  results = ["\u0100b"];
-  shouldBe(regex35.firstMatch(input0), results);
-
-  var regex36 = new RegExp(r"\u0100{0,0}");
-  input0 = "abcd";
-  results = [""];
-  shouldBe(regex36.firstMatch(input0), results);
-
-  var regex37 = new RegExp(r"\u0100?");
-  input0 = "abcd";
-  results = [""];
-  shouldBe(regex37.firstMatch(input0), results);
-  input1 = "\u0100\u0100";
-  results = ["\u0100"];
-  shouldBe(regex37.firstMatch(input1), results);
-
-  var regex38 = new RegExp(r"\u0100{0,3}");
-  input0 = "\u0100\u0100";
-  results = ["\u0100\u0100"];
-  shouldBe(regex38.firstMatch(input0), results);
-  input1 = "\u0100\u0100\u0100\u0100";
-  results = ["\u0100\u0100\u0100"];
-  shouldBe(regex38.firstMatch(input1), results);
-
-  var regex39 = new RegExp(r"\u0100*");
-  input0 = "abce";
-  results = [""];
-  shouldBe(regex39.firstMatch(input0), results);
-  input1 = "\u0100\u0100\u0100\u0100";
-  results = ["\u0100\u0100\u0100\u0100"];
-  shouldBe(regex39.firstMatch(input1), results);
-
-  var regex40 = new RegExp(r"\u0100{1,1}");
-  input0 = "abcd\u0100\u0100\u0100\u0100";
-  results = ["\u0100"];
-  shouldBe(regex40.firstMatch(input0), results);
-
-  var regex41 = new RegExp(r"\u0100{1,3}");
-  input0 = "abcd\u0100\u0100\u0100\u0100";
-  results = ["\u0100\u0100\u0100"];
-  shouldBe(regex41.firstMatch(input0), results);
-
-  var regex42 = new RegExp(r"\u0100+");
-  input0 = "abcd\u0100\u0100\u0100\u0100";
-  results = ["\u0100\u0100\u0100\u0100"];
-  shouldBe(regex42.firstMatch(input0), results);
-
-  var regex43 = new RegExp(r"\u0100{3}");
-  input0 = "abcd\u0100\u0100\u0100XX";
-  results = ["\u0100\u0100\u0100"];
-  shouldBe(regex43.firstMatch(input0), results);
-
-  var regex44 = new RegExp(r"\u0100{3,5}");
-  input0 = "abcd\u0100\u0100\u0100\u0100\u0100\u0100\u0100XX";
-  results = ["\u0100\u0100\u0100\u0100\u0100"];
-  shouldBe(regex44.firstMatch(input0), results);
-
-  var regex45 = new RegExp(r"\u0100{3,}");
-  input0 = "abcd\u0100\u0100\u0100\u0100\u0100\u0100\u0100XX";
-  results = ["\u0100\u0100\u0100\u0100\u0100\u0100\u0100"];
-  shouldBe(regex45.firstMatch(input0), results);
-
-  var regex47 = new RegExp(r"\D*");
-  input0 =
-      "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
-  results = [
-    "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
-  ];
-  shouldBe(regex47.firstMatch(input0), results);
-
-  var regex48 = new RegExp(r"\D*");
-  input0 =
-      "\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100";
-  results = [
-    "\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100\u0100"
-  ];
-  shouldBe(regex48.firstMatch(input0), results);
-
-  var regex49 = new RegExp(r"\D");
-  input0 = "1X2";
-  results = ["X"];
-  shouldBe(regex49.firstMatch(input0), results);
-  input1 = "1\u01002";
-  results = ["\u0100"];
-  shouldBe(regex49.firstMatch(input1), results);
-
-  var regex50 = new RegExp(r">\S");
-  input0 = "> >X Y";
-  results = [">X"];
-  shouldBe(regex50.firstMatch(input0), results);
-  input1 = "> >\u0100 Y";
-  results = [">\u0100"];
-  shouldBe(regex50.firstMatch(input1), results);
-
-  var regex51 = new RegExp(r"\d");
-  input0 = "\u01003";
-  results = ["3"];
-  shouldBe(regex51.firstMatch(input0), results);
-
-  var regex52 = new RegExp(r"\s");
-  input0 = "\u0100 X";
-  results = [" "];
-  shouldBe(regex52.firstMatch(input0), results);
-
-  var regex53 = new RegExp(r"\D+");
-  input0 = "12abcd34";
-  results = ["abcd"];
-  shouldBe(regex53.firstMatch(input0), results);
-  // Failers
-  input1 = "1234";
-  results = null;
-  shouldBe(regex53.firstMatch(input1), results);
-
-  var regex54 = new RegExp(r"\D{2,3}");
-  input0 = "12abcd34";
-  results = ["abc"];
-  shouldBe(regex54.firstMatch(input0), results);
-  input1 = "12ab34";
-  results = ["ab"];
-  shouldBe(regex54.firstMatch(input1), results);
-  // Failers
-  input2 = "1234";
-  results = null;
-  shouldBe(regex54.firstMatch(input2), results);
-  input3 = "12a34";
-  results = null;
-  shouldBe(regex54.firstMatch(input3), results);
-
-  var regex55 = new RegExp(r"\D{2,3}?");
-  input0 = "12abcd34";
-  results = ["ab"];
-  shouldBe(regex55.firstMatch(input0), results);
-  input1 = "12ab34";
-  results = ["ab"];
-  shouldBe(regex55.firstMatch(input1), results);
-  // Failers
-  input2 = "1234";
-  results = null;
-  shouldBe(regex55.firstMatch(input2), results);
-  input3 = "12a34";
-  results = null;
-  shouldBe(regex55.firstMatch(input3), results);
-
-  var regex56 = new RegExp(r"\d+");
-  input0 = "12abcd34";
-  results = ["12"];
-  shouldBe(regex56.firstMatch(input0), results);
-
-  var regex57 = new RegExp(r"\d{2,3}");
-  input0 = "12abcd34";
-  results = ["12"];
-  shouldBe(regex57.firstMatch(input0), results);
-  input1 = "1234abcd";
-  results = ["123"];
-  shouldBe(regex57.firstMatch(input1), results);
-  // Failers
-  input2 = "1.4";
-  results = null;
-  shouldBe(regex57.firstMatch(input2), results);
-
-  var regex58 = new RegExp(r"\d{2,3}?");
-  input0 = "12abcd34";
-  results = ["12"];
-  shouldBe(regex58.firstMatch(input0), results);
-  input1 = "1234abcd";
-  results = ["12"];
-  shouldBe(regex58.firstMatch(input1), results);
-  // Failers
-  input2 = "1.4";
-  results = null;
-  shouldBe(regex58.firstMatch(input2), results);
-
-  var regex59 = new RegExp(r"\S+");
-  input0 = "12abcd34";
-  results = ["12abcd34"];
-  shouldBe(regex59.firstMatch(input0), results);
-  // Failers
-  input1 = "    ";
-  results = null;
-  shouldBe(regex59.firstMatch(input1), results);
-
-  var regex60 = new RegExp(r"\S{2,3}");
-  input0 = "12abcd34";
-  results = ["12a"];
-  shouldBe(regex60.firstMatch(input0), results);
-  input1 = "1234abcd";
-  results = ["123"];
-  shouldBe(regex60.firstMatch(input1), results);
-  // Failers
-  input2 = "    ";
-  results = null;
-  shouldBe(regex60.firstMatch(input2), results);
-
-  var regex61 = new RegExp(r"\S{2,3}?");
-  input0 = "12abcd34";
-  results = ["12"];
-  shouldBe(regex61.firstMatch(input0), results);
-  input1 = "1234abcd";
-  results = ["12"];
-  shouldBe(regex61.firstMatch(input1), results);
-  // Failers
-  input2 = "    ";
-  results = null;
-  shouldBe(regex61.firstMatch(input2), results);
-
-  var regex62 = new RegExp(r">\s+<");
-  input0 = "12>      <34";
-  results = [">      <"];
-  shouldBe(regex62.firstMatch(input0), results);
-
-  var regex63 = new RegExp(r">\s{2,3}<");
-  input0 = "ab>  <cd";
-  results = [">  <"];
-  shouldBe(regex63.firstMatch(input0), results);
-  input1 = "ab>   <ce";
-  results = [">   <"];
-  shouldBe(regex63.firstMatch(input1), results);
-  // Failers
-  input2 = "ab>    <cd";
-  results = null;
-  shouldBe(regex63.firstMatch(input2), results);
-
-  var regex64 = new RegExp(r">\s{2,3}?<");
-  input0 = "ab>  <cd";
-  results = [">  <"];
-  shouldBe(regex64.firstMatch(input0), results);
-  input1 = "ab>   <ce";
-  results = [">   <"];
-  shouldBe(regex64.firstMatch(input1), results);
-  // Failers
-  input2 = "ab>    <cd";
-  results = null;
-  shouldBe(regex64.firstMatch(input2), results);
-
-  var regex65 = new RegExp(r"\w+");
-  input0 = "12      34";
-  results = ["12"];
-  shouldBe(regex65.firstMatch(input0), results);
-  // Failers
-  input1 = "+++=*!";
-  results = null;
-  shouldBe(regex65.firstMatch(input1), results);
-
-  var regex66 = new RegExp(r"\w{2,3}");
-  input0 = "ab  cd";
-  results = ["ab"];
-  shouldBe(regex66.firstMatch(input0), results);
-  input1 = "abcd ce";
-  results = ["abc"];
-  shouldBe(regex66.firstMatch(input1), results);
-  // Failers
-  input2 = "a.b.c";
-  results = null;
-  shouldBe(regex66.firstMatch(input2), results);
-
-  var regex67 = new RegExp(r"\w{2,3}?");
-  input0 = "ab  cd";
-  results = ["ab"];
-  shouldBe(regex67.firstMatch(input0), results);
-  input1 = "abcd ce";
-  results = ["ab"];
-  shouldBe(regex67.firstMatch(input1), results);
-  // Failers
-  input2 = "a.b.c";
-  results = null;
-  shouldBe(regex67.firstMatch(input2), results);
-
-  var regex68 = new RegExp(r"\W+");
-  input0 = "12====34";
-  results = ["===="];
-  shouldBe(regex68.firstMatch(input0), results);
-  // Failers
-  input1 = "abcd";
-  results = null;
-  shouldBe(regex68.firstMatch(input1), results);
-
-  var regex69 = new RegExp(r"\W{2,3}");
-  input0 = "ab====cd";
-  results = ["==="];
-  shouldBe(regex69.firstMatch(input0), results);
-  input1 = "ab==cd";
-  results = ["=="];
-  shouldBe(regex69.firstMatch(input1), results);
-  // Failers
-  input2 = "a.b.c";
-  results = null;
-  shouldBe(regex69.firstMatch(input2), results);
-
-  var regex70 = new RegExp(r"\W{2,3}?");
-  input0 = "ab====cd";
-  results = ["=="];
-  shouldBe(regex70.firstMatch(input0), results);
-  input1 = "ab==cd";
-  results = ["=="];
-  shouldBe(regex70.firstMatch(input1), results);
-  // Failers
-  input2 = "a.b.c";
-  results = null;
-  shouldBe(regex70.firstMatch(input2), results);
-
-  var regex71 = new RegExp(r"[\u0100]");
-  input0 = "\u0100";
-  results = ["\u0100"];
-  shouldBe(regex71.firstMatch(input0), results);
-  input1 = "Z\u0100";
-  results = ["\u0100"];
-  shouldBe(regex71.firstMatch(input1), results);
-  input2 = "\u0100Z";
-  results = ["\u0100"];
-  shouldBe(regex71.firstMatch(input2), results);
-
-  var regex72 = new RegExp(r"[Z\u0100]");
-  input0 = "Z\u0100";
-  results = ["Z"];
-  shouldBe(regex72.firstMatch(input0), results);
-  input1 = "\u0100";
-  results = ["\u0100"];
-  shouldBe(regex72.firstMatch(input1), results);
-  input2 = "\u0100Z";
-  results = ["\u0100"];
-  shouldBe(regex72.firstMatch(input2), results);
-
-  var regex73 = new RegExp(r"[\u0100\u0200]");
-  input0 = "ab\u0100cd";
-  results = ["\u0100"];
-  shouldBe(regex73.firstMatch(input0), results);
-  input1 = "ab\u0200cd";
-  results = ["\u0200"];
-  shouldBe(regex73.firstMatch(input1), results);
-
-  var regex74 = new RegExp(r"[\u0100-\u0200]");
-  input0 = "ab\u0100cd";
-  results = ["\u0100"];
-  shouldBe(regex74.firstMatch(input0), results);
-  input1 = "ab\u0200cd";
-  results = ["\u0200"];
-  shouldBe(regex74.firstMatch(input1), results);
-  input2 = "ab\u0111cd";
-  results = ["\u0111"];
-  shouldBe(regex74.firstMatch(input2), results);
-
-  var regex75 = new RegExp(r"[z-\u0200]");
-  input0 = "ab\u0100cd";
-  results = ["\u0100"];
-  shouldBe(regex75.firstMatch(input0), results);
-  input1 = "ab\u0200cd";
-  results = ["\u0200"];
-  shouldBe(regex75.firstMatch(input1), results);
-  input2 = "ab\u0111cd";
-  results = ["\u0111"];
-  shouldBe(regex75.firstMatch(input2), results);
-  input3 = "abzcd";
-  results = ["z"];
-  shouldBe(regex75.firstMatch(input3), results);
-  input4 = "ab|cd";
-  results = ["|"];
-  shouldBe(regex75.firstMatch(input4), results);
-
-  var regex76 = new RegExp(r"[Q\u0100\u0200]");
-  input0 = "ab\u0100cd";
-  results = ["\u0100"];
-  shouldBe(regex76.firstMatch(input0), results);
-  input1 = "ab\u0200cd";
-  results = ["\u0200"];
-  shouldBe(regex76.firstMatch(input1), results);
-  input2 = "Q?";
-  results = ["Q"];
-  shouldBe(regex76.firstMatch(input2), results);
-
-  var regex77 = new RegExp(r"[Q\u0100-\u0200]");
-  input0 = "ab\u0100cd";
-  results = ["\u0100"];
-  shouldBe(regex77.firstMatch(input0), results);
-  input1 = "ab\u0200cd";
-  results = ["\u0200"];
-  shouldBe(regex77.firstMatch(input1), results);
-  input2 = "ab\u0111cd";
-  results = ["\u0111"];
-  shouldBe(regex77.firstMatch(input2), results);
-  input3 = "Q?";
-  results = ["Q"];
-  shouldBe(regex77.firstMatch(input3), results);
-
-  var regex78 = new RegExp(r"[Qz-\u0200]");
-  input0 = "ab\u0100cd";
-  results = ["\u0100"];
-  shouldBe(regex78.firstMatch(input0), results);
-  input1 = "ab\u0200cd";
-  results = ["\u0200"];
-  shouldBe(regex78.firstMatch(input1), results);
-  input2 = "ab\u0111cd";
-  results = ["\u0111"];
-  shouldBe(regex78.firstMatch(input2), results);
-  input3 = "abzcd";
-  results = ["z"];
-  shouldBe(regex78.firstMatch(input3), results);
-  input4 = "ab|cd";
-  results = ["|"];
-  shouldBe(regex78.firstMatch(input4), results);
-  input5 = "Q?";
-  results = ["Q"];
-  shouldBe(regex78.firstMatch(input5), results);
-
-  var regex79 = new RegExp(r"[\u0100\u0200]{1,3}");
-  input0 = "ab\u0100cd";
-  results = ["\u0100"];
-  shouldBe(regex79.firstMatch(input0), results);
-  input1 = "ab\u0200cd";
-  results = ["\u0200"];
-  shouldBe(regex79.firstMatch(input1), results);
-  input2 = "ab\u0200\u0100\u0200\u0100cd";
-  results = ["\u0200\u0100\u0200"];
-  shouldBe(regex79.firstMatch(input2), results);
-
-  var regex80 = new RegExp(r"[\u0100\u0200]{1,3}?");
-  input0 = "ab\u0100cd";
-  results = ["\u0100"];
-  shouldBe(regex80.firstMatch(input0), results);
-  input1 = "ab\u0200cd";
-  results = ["\u0200"];
-  shouldBe(regex80.firstMatch(input1), results);
-  input2 = "ab\u0200\u0100\u0200\u0100cd";
-  results = ["\u0200"];
-  shouldBe(regex80.firstMatch(input2), results);
-
-  var regex81 = new RegExp(r"[Q\u0100\u0200]{1,3}");
-  input0 = "ab\u0100cd";
-  results = ["\u0100"];
-  shouldBe(regex81.firstMatch(input0), results);
-  input1 = "ab\u0200cd";
-  results = ["\u0200"];
-  shouldBe(regex81.firstMatch(input1), results);
-  input2 = "ab\u0200\u0100\u0200\u0100cd";
-  results = ["\u0200\u0100\u0200"];
-  shouldBe(regex81.firstMatch(input2), results);
-
-  var regex82 = new RegExp(r"[Q\u0100\u0200]{1,3}?");
-  input0 = "ab\u0100cd";
-  results = ["\u0100"];
-  shouldBe(regex82.firstMatch(input0), results);
-  input1 = "ab\u0200cd";
-  results = ["\u0200"];
-  shouldBe(regex82.firstMatch(input1), results);
-  input2 = "ab\u0200\u0100\u0200\u0100cd";
-  results = ["\u0200"];
-  shouldBe(regex82.firstMatch(input2), results);
-
-  var regex86 = new RegExp(r"[^\u0100\u0200]X");
-  input0 = "AX";
-  results = ["AX"];
-  shouldBe(regex86.firstMatch(input0), results);
-  input1 = "\u0150X";
-  results = ["\u0150X"];
-  shouldBe(regex86.firstMatch(input1), results);
-  input2 = "\u0500X";
-  results = ["\u0500X"];
-  shouldBe(regex86.firstMatch(input2), results);
-  // Failers
-  input3 = "\u0100X";
-  results = null;
-  shouldBe(regex86.firstMatch(input3), results);
-  input4 = "\u0200X";
-  results = null;
-  shouldBe(regex86.firstMatch(input4), results);
-
-  var regex87 = new RegExp(r"[^Q\u0100\u0200]X");
-  input0 = "AX";
-  results = ["AX"];
-  shouldBe(regex87.firstMatch(input0), results);
-  input1 = "\u0150X";
-  results = ["\u0150X"];
-  shouldBe(regex87.firstMatch(input1), results);
-  input2 = "\u0500X";
-  results = ["\u0500X"];
-  shouldBe(regex87.firstMatch(input2), results);
-  // Failers
-  input3 = "\u0100X";
-  results = null;
-  shouldBe(regex87.firstMatch(input3), results);
-  input4 = "\u0200X";
-  results = null;
-  shouldBe(regex87.firstMatch(input4), results);
-  input5 = "QX";
-  results = null;
-  shouldBe(regex87.firstMatch(input5), results);
-
-  var regex88 = new RegExp(r"[^\u0100-\u0200]X");
-  input0 = "AX";
-  results = ["AX"];
-  shouldBe(regex88.firstMatch(input0), results);
-  input1 = "\u0500X";
-  results = ["\u0500X"];
-  shouldBe(regex88.firstMatch(input1), results);
-  // Failers
-  input2 = "\u0100X";
-  results = null;
-  shouldBe(regex88.firstMatch(input2), results);
-  input3 = "\u0150X";
-  results = null;
-  shouldBe(regex88.firstMatch(input3), results);
-  input4 = "\u0200X";
-  results = null;
-  shouldBe(regex88.firstMatch(input4), results);
-
-  var regex91 = new RegExp(r"[z-\u0100]", caseSensitive: false);
-  input0 = "z";
-  results = ["z"];
-  shouldBe(regex91.firstMatch(input0), results);
-  input1 = "Z";
-  results = ["Z"];
-  shouldBe(regex91.firstMatch(input1), results);
-  input2 = "\u0100";
-  results = ["\u0100"];
-  shouldBe(regex91.firstMatch(input2), results);
-  // Failers
-  input3 = "\u0102";
-  results = null;
-  shouldBe(regex91.firstMatch(input3), results);
-  input4 = "y";
-  results = null;
-  shouldBe(regex91.firstMatch(input4), results);
-
-  var regex92 = new RegExp(r"[\xFF]");
-  input0 = ">\xff<";
-  results = ["\xff"];
-  shouldBe(regex92.firstMatch(input0), results);
-
-  var regex93 = new RegExp(r"[\xff]");
-  input0 = ">\u00ff<";
-  results = ["\u00ff"];
-  shouldBe(regex93.firstMatch(input0), results);
-
-  var regex94 = new RegExp(r"[^\xFF]");
-  input0 = "XYZ";
-  results = ["X"];
-  shouldBe(regex94.firstMatch(input0), results);
-
-  var regex95 = new RegExp(r"[^\xff]");
-  input0 = "XYZ";
-  results = ["X"];
-  shouldBe(regex95.firstMatch(input0), results);
-  input1 = "\u0123";
-  results = ["\u0123"];
-  shouldBe(regex95.firstMatch(input1), results);
-
-  var regex96 = new RegExp(r"^[ac]*b");
-  input0 = "xb";
-  results = null;
-  shouldBe(regex96.firstMatch(input0), results);
-
-  var regex97 = new RegExp(r"^[ac\u0100]*b");
-  input0 = "xb";
-  results = null;
-  shouldBe(regex97.firstMatch(input0), results);
-
-  var regex98 = new RegExp(r"^[^x]*b", caseSensitive: false);
-  input0 = "xb";
-  results = null;
-  shouldBe(regex98.firstMatch(input0), results);
-
-  var regex99 = new RegExp(r"^[^x]*b");
-  input0 = "xb";
-  results = null;
-  shouldBe(regex99.firstMatch(input0), results);
-
-  var regex100 = new RegExp(r"^\d*b");
-  input0 = "xb";
-  results = null;
-  shouldBe(regex100.firstMatch(input0), results);
-
-  var regex102 = new RegExp(r"^\u0085$", caseSensitive: false);
-  input0 = "\u0085";
-  results = ["\u0085"];
-  shouldBe(regex102.firstMatch(input0), results);
-
-  var regex103 = new RegExp(r"^\xe1\x88\xb4");
-  input0 = "\xe1\x88\xb4";
-  results = ["\xe1\x88\xb4"];
-  shouldBe(regex103.firstMatch(input0), results);
-
-  var regex104 = new RegExp(r"^\xe1\x88\xb4");
-  input0 = "\xe1\x88\xb4";
-  results = ["\xe1\x88\xb4"];
-  shouldBe(regex104.firstMatch(input0), results);
-
-  var regex105 = new RegExp(r"(.{1,5})");
-  input0 = "abcdefg";
-  results = ["abcde", "abcde"];
-  shouldBe(regex105.firstMatch(input0), results);
-  input1 = "ab";
-  results = ["ab", "ab"];
-  shouldBe(regex105.firstMatch(input1), results);
-
-  var regex106 = new RegExp(r"a*\u0100*\w");
-  input0 = "a";
-  results = ["a"];
-  shouldBe(regex106.firstMatch(input0), results);
-
-  var regex107 = new RegExp(r"[\S\s]*");
-  input0 = "abc\n\r\u0442\u0435\u0441\u0442xyz";
-  results = ["abc\u000a\u000d\u0442\u0435\u0441\u0442xyz"];
-  shouldBe(regex107.firstMatch(input0), results);
-
-  var regexGlobal0 = new RegExp(r"[^a]+");
-  input0 = "bcd";
-  results = ["bcd"];
-  shouldBe(firstMatch(input0, regexGlobal0), results);
-  input1 = "\u0100aY\u0256Z";
-  results = ["\u0100", "Y\u0256Z"];
-  Expect.listEquals(
-      regexGlobal0.allMatches(input1).map((m) => m.group(0)).toList(), results);
-
-  var regexGlobal1 = new RegExp(r"\S\S");
-  input0 = "A\u00a3BC";
-  results = ["A\u00a3", "BC"];
-  Expect.listEquals(allStringMatches(input0, regexGlobal1), results);
-
-  var regexGlobal2 = new RegExp(r"\S{2}");
-  input0 = "A\u00a3BC";
-  results = ["A\u00a3", "BC"];
-  Expect.listEquals(allStringMatches(input0, regexGlobal2), results);
-
-  var regexGlobal3 = new RegExp(r"\W\W");
-  input0 = "+\u00a3==";
-  results = ["+\u00a3", "=="];
-  Expect.listEquals(allStringMatches(input0, regexGlobal3), results);
-
-  var regexGlobal4 = new RegExp(r"\W{2}");
-  input0 = "+\u00a3==";
-  results = ["+\u00a3", "=="];
-  Expect.listEquals(allStringMatches(input0, regexGlobal4), results);
-
-  var regexGlobal5 = new RegExp(r"\S");
-  input0 = "\u0442\u0435\u0441\u0442";
-  results = ["\u0442", "\u0435", "\u0441", "\u0442"];
-  Expect.listEquals(allStringMatches(input0, regexGlobal5), results);
-
-  var regexGlobal6 = new RegExp(r"[\S]");
-  input0 = "\u0442\u0435\u0441\u0442";
-  results = ["\u0442", "\u0435", "\u0441", "\u0442"];
-  Expect.listEquals(allStringMatches(input0, regexGlobal6), results);
-
-  var regexGlobal7 = new RegExp(r"\D");
-  input0 = "\u0442\u0435\u0441\u0442";
-  results = ["\u0442", "\u0435", "\u0441", "\u0442"];
-  Expect.listEquals(allStringMatches(input0, regexGlobal7), results);
-
-  var regexGlobal8 = new RegExp(r"[\D]");
-  input0 = "\u0442\u0435\u0441\u0442";
-  results = ["\u0442", "\u0435", "\u0441", "\u0442"];
-  Expect.listEquals(allStringMatches(input0, regexGlobal8), results);
-
-  var regexGlobal9 = new RegExp(r"\W");
-  input0 = "\u2442\u2435\u2441\u2442";
-  results = ["\u2442", "\u2435", "\u2441", "\u2442"];
-  Expect.listEquals(allStringMatches(input0, regexGlobal9), results);
-
-  var regexGlobal10 = new RegExp(r"[\W]");
-  input0 = "\u2442\u2435\u2441\u2442";
-  results = ["\u2442", "\u2435", "\u2441", "\u2442"];
-  Expect.listEquals(allStringMatches(input0, regexGlobal10), results);
-
-  var regexGlobal11 = new RegExp(r"[\u041f\S]");
-  input0 = "\u0442\u0435\u0441\u0442";
-  results = ["\u0442", "\u0435", "\u0441", "\u0442"];
-  Expect.listEquals(allStringMatches(input0, regexGlobal11), results);
-
-  var regexGlobal12 = new RegExp(r".[^\S].");
-  input0 = "abc def\u0442\u0443xyz\npqr";
-  results = ["c d", "z\u000ap"];
-  Expect.listEquals(allStringMatches(input0, regexGlobal12), results);
-
-  var regexGlobal13 = new RegExp(r".[^\S\n].");
-  input0 = "abc def\u0442\u0443xyz\npqr";
-  results = ["c d"];
-  Expect.listEquals(allStringMatches(input0, regexGlobal13), results);
-
-  var regexGlobal14 = new RegExp(r"[\W]");
-  input0 = "+\u2442";
-  results = ["+", "\u2442"];
-  Expect.listEquals(allStringMatches(input0, regexGlobal14), results);
-
-  var regexGlobal15 = new RegExp(r"[^a-zA-Z]");
-  input0 = "+\u2442";
-  results = ["+", "\u2442"];
-  Expect.listEquals(allStringMatches(input0, regexGlobal15), results);
-
-  var regexGlobal16 = new RegExp(r"[^a-zA-Z]");
-  input0 = "A\u0442";
-  results = ["\u0442"];
-  Expect.listEquals(allStringMatches(input0, regexGlobal16), results);
-
-  var regexGlobal17 = new RegExp(r"[\S]");
-  input0 = "A\u0442";
-  results = ["A", "\u0442"];
-  Expect.listEquals(allStringMatches(input0, regexGlobal17), results);
-
-  var regexGlobal19 = new RegExp(r"[\D]");
-  input0 = "A\u0442";
-  results = ["A", "\u0442"];
-  Expect.listEquals(allStringMatches(input0, regexGlobal19), results);
-
-  var regexGlobal21 = new RegExp(r"[^a-z]");
-  input0 = "A\u0422";
-  results = ["A", "\u0422"];
-  Expect.listEquals(allStringMatches(input0, regexGlobal21), results);
-
-  var regexGlobal24 = new RegExp(r"[\S]");
-  input0 = "A\u0442";
-  results = ["A", "\u0442"];
-  Expect.listEquals(allStringMatches(input0, regexGlobal24), results);
-
-  var regexGlobal25 = new RegExp(r"[^A-Z]");
-  input0 = "a\u0442";
-  results = ["a", "\u0442"];
-  Expect.listEquals(allStringMatches(input0, regexGlobal25), results);
-
-  var regexGlobal26 = new RegExp(r"[\W]");
-  input0 = "+\u2442";
-  results = ["+", "\u2442"];
-  Expect.listEquals(allStringMatches(input0, regexGlobal26), results);
-
-  var regexGlobal27 = new RegExp(r"[\D]");
-  input0 = "M\u0442";
-  results = ["M", "\u0442"];
-  Expect.listEquals(allStringMatches(input0, regexGlobal27), results);
-
-  var regexGlobal28 = new RegExp(r"[^a]+", caseSensitive: false);
-  input0 = "bcd";
-  results = ["bcd"];
-  Expect.listEquals(allStringMatches(input0, regexGlobal28), results);
-  input1 = "\u0100aY\u0256Z";
-  results = ["\u0100", "Y\u0256Z"];
-  Expect.listEquals(allStringMatches(input1, regexGlobal28), results);
-
-  var regexGlobal29 = new RegExp(r"(a|)");
-  input0 = "catac";
-  results = ["", "a", "", "a", "", ""];
-  Expect.listEquals(allStringMatches(input0, regexGlobal29), results);
-  input1 = "a\u0256a";
-  results = ["a", "", "a", ""];
-  Expect.listEquals(allStringMatches(input1, regexGlobal29), results);
-}
diff --git a/tests/corelib_2/regexp/pcre_test.dart b/tests/corelib_2/regexp/pcre_test.dart
deleted file mode 100644
index d987f87f9d7..00000000000
--- a/tests/corelib_2/regexp/pcre_test.dart
+++ /dev/null
@@ -1,7227 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Autogenerated from the PCRE test suite Mon Feb  2 15:14:04 CET 2009
-
-// @dart = 2.9
-
-// Note that some regexps in the PCRE test suite use features not present
-// in JavaScript.  These don't work in JS, but they fail to work in a
-// predictable way, and the expected results reflect this.
-
-// PCRE comes with the following license
-
-// PCRE LICENCE
-// ------------
-//
-// PCRE is a library of functions to support regular expressions whose syntax
-// and semantics are as close as possible to those of the Perl 5 language.
-//
-// Release 7 of PCRE is distributed under the terms of the "BSD" licence, as
-// specified below. The documentation for PCRE, supplied in the "doc"
-// directory, is distributed under the same terms as the software itself.
-//
-// The basic library functions are written in C and are freestanding. Also
-// included in the distribution is a set of C++ wrapper functions.
-//
-//
-// THE BASIC LIBRARY FUNCTIONS
-// ---------------------------
-//
-// Written by:       Philip Hazel
-// Email local part: ph10
-// Email domain:     cam.ac.uk
-//
-// University of Cambridge Computing Service,
-// Cambridge, England.
-//
-// Copyright (c) 1997-2007 University of Cambridge
-// All rights reserved.
-//
-//
-// THE C++ WRAPPER FUNCTIONS
-// -------------------------
-//
-// Contributed by:   Google Inc.
-//
-// Copyright (c) 2007, Google Inc.
-// All rights reserved.
-//
-//
-// THE "BSD" LICENCE
-// -----------------
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are met:
-//
-//     * Redistributions of source code must retain the above copyright notice,
-//       this list of conditions and the following disclaimer.
-//
-//     * Redistributions in binary form must reproduce the above copyright
-//       notice, this list of conditions and the following disclaimer in the
-//       documentation and/or other materials provided with the distribution.
-//
-//     * Neither the name of the University of Cambridge nor the name of Google
-//       Inc. nor the names of their contributors may be used to endorse or
-//       promote products derived from this software without specific prior
-//       written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
-// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-// POSSIBILITY OF SUCH DAMAGE.
-//
-// End
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  var res = <RegExp>[];
-  res.add(new RegExp(r"(a)b|", caseSensitive: false));
-  res.add(new RegExp(r"abc", caseSensitive: false));
-  res.add(new RegExp(r"^abc", caseSensitive: false));
-  res.add(new RegExp(r"a+bc", caseSensitive: false));
-  res.add(new RegExp(r"a*bc", caseSensitive: false));
-  res.add(new RegExp(r"a{3}bc", caseSensitive: false));
-  res.add(new RegExp(r"(abc|a+z)", caseSensitive: false));
-  res.add(new RegExp(r"^abc$", caseSensitive: false));
-  res.add(new RegExp(r"ab\idef"));
-  res.add(new RegExp(r".*b", caseSensitive: false));
-  res.add(new RegExp(r".*?b", caseSensitive: false));
-  res.add(new RegExp(r"cat|dog|elephant", caseSensitive: false));
-  res.add(new RegExp(r"cat|dog|elephant", caseSensitive: false));
-  res.add(new RegExp(r"cat|dog|elephant", caseSensitive: false));
-  res.add(new RegExp(r"a|[bcd]", caseSensitive: false));
-  res.add(new RegExp(r"(a|[^\dZ])", caseSensitive: false));
-  res.add(new RegExp(r"(a|b)*[\s]", caseSensitive: false));
-  res.add(new RegExp(r"(ab\2)"));
-  res.add(new RegExp(r"(a)(b)(c)\2", caseSensitive: false));
-  res.add(new RegExp(r"(a)bc|(a)(b)\2", caseSensitive: false));
-  res.add(new RegExp(r"abc$", caseSensitive: false));
-  res.add(new RegExp(r"(a)(b)(c)(d)(e)\6"));
-  res.add(new RegExp(r"the quick brown fox", caseSensitive: false));
-  res.add(new RegExp(r"^abc|def", caseSensitive: false));
-  res.add(new RegExp(r".*((abc)$|(def))", caseSensitive: false));
-  res.add(new RegExp(r"abc", caseSensitive: false));
-  res.add(new RegExp(r"^abc|def", caseSensitive: false));
-  res.add(new RegExp(r".*((abc)$|(def))", caseSensitive: false));
-  res.add(new RegExp(r"the quick brown fox", caseSensitive: false));
-  res.add(new RegExp(r"the quick brown fox", caseSensitive: false));
-  res.add(new RegExp(r"abc.def", caseSensitive: false));
-  res.add(new RegExp(r"abc$", caseSensitive: false));
-  res.add(new RegExp(r"(abc)\2", caseSensitive: false));
-  res.add(new RegExp(r"(abc\1)", caseSensitive: false));
-  res.add(new RegExp(r"a[]b"));
-  res.add(new RegExp(r"[^aeiou ]{3,}", caseSensitive: false));
-  res.add(new RegExp(r"<.*>", caseSensitive: false));
-  res.add(new RegExp(r"<.*?>", caseSensitive: false));
-  res.add(new RegExp(r"[abcd]", caseSensitive: false));
-  res.add(new RegExp(r"(^a|^b)", multiLine: true, caseSensitive: false));
-  res.add(new RegExp(r"a$", caseSensitive: false));
-  res.add(new RegExp(r"a$", multiLine: true, caseSensitive: false));
-  res.add(new RegExp(r"\Aabc", multiLine: true, caseSensitive: false));
-  res.add(new RegExp(r"^abc", multiLine: true, caseSensitive: false));
-  res.add(new RegExp(r"(?!alphabet)[ab]", caseSensitive: false));
-  res.add(new RegExp(
-      r"The next three are in testinput2 because they have variable length branches"));
-  res.add(new RegExp(r"This one is here because Perl 5.005_02 doesn't fail it",
-      caseSensitive: false));
-  res.add(new RegExp(
-      r"This one is here because I think Perl 5.005_02 gets the setting of $1 wrong",
-      caseSensitive: false));
-  res.add(new RegExp(r"^(a\1?){4}$", caseSensitive: false));
-  res.add(new RegExp(r"These are syntax tests from Perl 5.005",
-      caseSensitive: false));
-  res.add(new RegExp(r"a[]b"));
-  res.add(new RegExp(r"\1"));
-  res.add(new RegExp(r"\2"));
-  res.add(new RegExp(r"(a)|\2"));
-  res.add(new RegExp(r"a[]b", caseSensitive: false));
-  res.add(new RegExp(r"abc"));
-  res.add(new RegExp(r"abc"));
-  res.add(new RegExp(r"abc", caseSensitive: false));
-  res.add(new RegExp(r"(a)bc(d)", caseSensitive: false));
-  res.add(new RegExp(r"(.{20})", caseSensitive: false));
-  res.add(new RegExp(r"(.{15})", caseSensitive: false));
-  res.add(new RegExp(r"(.{16})", caseSensitive: false));
-  res.add(new RegExp(r"^(a|(bc))de(f)", caseSensitive: false));
-  res.add(new RegExp(r"^abc\00def", caseSensitive: false));
-  res.add(new RegExp(
-      r"word ((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+\n)((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+ )((?:[a-zA-Z0-9]+\n)?)?)?)?)?)?)?)?)?otherword",
-      caseSensitive: false));
-  res.add(new RegExp(r".*X", caseSensitive: false));
-  res.add(new RegExp(r".*X", caseSensitive: false));
-  res.add(new RegExp(r"(.*X|^B)", caseSensitive: false));
-  res.add(new RegExp(r"(.*X|^B)", caseSensitive: false));
-  res.add(new RegExp(r"\Biss\B", caseSensitive: false));
-  res.add(new RegExp(r"\Biss\B", caseSensitive: false));
-  res.add(new RegExp(r"iss", caseSensitive: false));
-  res.add(new RegExp(r"\Biss\B", caseSensitive: false));
-  res.add(new RegExp(r"\Biss\B", caseSensitive: false));
-  res.add(new RegExp(r"^iss", caseSensitive: false));
-  res.add(new RegExp(r".*iss", caseSensitive: false));
-  res.add(new RegExp(r".i.", caseSensitive: false));
-  res.add(new RegExp(r"^.is", caseSensitive: false));
-  res.add(new RegExp(r"^ab\n", caseSensitive: false));
-  res.add(new RegExp(r"^ab\n", multiLine: true, caseSensitive: false));
-  res.add(new RegExp(r"abc", caseSensitive: false));
-  res.add(new RegExp(r"abc|bac", caseSensitive: false));
-  res.add(new RegExp(r"(abc|bac)", caseSensitive: false));
-  res.add(new RegExp(r"(abc|(c|dc))", caseSensitive: false));
-  res.add(new RegExp(r"(abc|(d|de)c)", caseSensitive: false));
-  res.add(new RegExp(r"a*", caseSensitive: false));
-  res.add(new RegExp(r"a+", caseSensitive: false));
-  res.add(new RegExp(r"(baa|a+)", caseSensitive: false));
-  res.add(new RegExp(r"a{0,3}", caseSensitive: false));
-  res.add(new RegExp(r"baa{3,}", caseSensitive: false));
-  res.add(new RegExp(r'"([^\\"]+|\.)*"', caseSensitive: false));
-  res.add(new RegExp(r"(abc|ab[cd])", caseSensitive: false));
-  res.add(new RegExp(r"(a|.)", caseSensitive: false));
-  res.add(new RegExp(r"a|ba|\w", caseSensitive: false));
-  res.add(new RegExp(r"abc(?=pqr)", caseSensitive: false));
-  res.add(new RegExp(r"abc(?!pqr)", caseSensitive: false));
-  res.add(new RegExp(r"ab.", caseSensitive: false));
-  res.add(new RegExp(r"ab[xyz]", caseSensitive: false));
-  res.add(new RegExp(r"abc*", caseSensitive: false));
-  res.add(new RegExp(r"ab.c*", caseSensitive: false));
-  res.add(new RegExp(r"a.c*", caseSensitive: false));
-  res.add(new RegExp(r".c*", caseSensitive: false));
-  res.add(new RegExp(r"ac*", caseSensitive: false));
-  res.add(new RegExp(r"(a.c*|b.c*)", caseSensitive: false));
-  res.add(new RegExp(r"a.c*|aba", caseSensitive: false));
-  res.add(new RegExp(r".+a", caseSensitive: false));
-  res.add(new RegExp(r"(?=abcda)a.*", caseSensitive: false));
-  res.add(new RegExp(r"(?=a)a.*", caseSensitive: false));
-  res.add(new RegExp(r"a(b)*", caseSensitive: false));
-  res.add(new RegExp(r"a\d*", caseSensitive: false));
-  res.add(new RegExp(r"ab\d*", caseSensitive: false));
-  res.add(new RegExp(r"a(\d)*", caseSensitive: false));
-  res.add(new RegExp(r"abcde{0,0}", caseSensitive: false));
-  res.add(new RegExp(r"ab\d+", caseSensitive: false));
-  res.add(new RegExp(r"ab\d{0}e", caseSensitive: false));
-  res.add(new RegExp(r"a?b?", caseSensitive: false));
-  res.add(new RegExp(r"|-", caseSensitive: false));
-  res.add(new RegExp(r"a*(b+)(z)(z)", caseSensitive: false));
-  res.add(new RegExp(r"^.?abcd", caseSensitive: false));
-  res.add(new RegExp(r"^[[:alnum:]]"));
-  res.add(new RegExp(r"^[[:^alnum:]]"));
-  res.add(new RegExp(r"^[[:alpha:]]"));
-  res.add(new RegExp(r"^[[:^alpha:]]"));
-  res.add(new RegExp(r"[_[:alpha:]]", caseSensitive: false));
-  res.add(new RegExp(r"^[[:ascii:]]"));
-  res.add(new RegExp(r"^[[:^ascii:]]"));
-  res.add(new RegExp(r"^[[:blank:]]"));
-  res.add(new RegExp(r"^[[:^blank:]]"));
-  res.add(new RegExp(r"[\n\x0b\x0c\x0d[:blank:]]", caseSensitive: false));
-  res.add(new RegExp(r"^[[:cntrl:]]"));
-  res.add(new RegExp(r"^[[:digit:]]"));
-  res.add(new RegExp(r"^[[:graph:]]"));
-  res.add(new RegExp(r"^[[:lower:]]"));
-  res.add(new RegExp(r"^[[:print:]]"));
-  res.add(new RegExp(r"^[[:punct:]]"));
-  res.add(new RegExp(r"^[[:space:]]"));
-  res.add(new RegExp(r"^[[:upper:]]"));
-  res.add(new RegExp(r"^[[:xdigit:]]"));
-  res.add(new RegExp(r"^[[:word:]]"));
-  res.add(new RegExp(r"^[[:^cntrl:]]"));
-  res.add(new RegExp(r"^[12[:^digit:]]"));
-  res.add(new RegExp(r"^[[:^blank:]]"));
-  res.add(new RegExp(r"[01[:alpha:]%]"));
-  res.add(new RegExp(r"[[.ch.]]", caseSensitive: false));
-  res.add(new RegExp(r"[[=ch=]]", caseSensitive: false));
-  res.add(new RegExp(r"[[:rhubarb:]]", caseSensitive: false));
-  res.add(new RegExp(r"[[:upper:]]", caseSensitive: false));
-  res.add(new RegExp(r"[[:lower:]]", caseSensitive: false));
-  res.add(new RegExp(
-      r"This one's here because of the large output vector needed",
-      caseSensitive: false));
-  res.add(new RegExp(
-      r"(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\w+)\s+(\270)",
-      caseSensitive: false));
-  res.add(new RegExp(
-      r"This one's here because Perl does this differently and PCRE can't at present",
-      caseSensitive: false));
-  res.add(new RegExp(r"(main(O)?)+", caseSensitive: false));
-  res.add(new RegExp(
-      r"These are all cases where Perl does it differently (nested captures)",
-      caseSensitive: false));
-  res.add(new RegExp(r"^(a(b)?)+$", caseSensitive: false));
-  res.add(new RegExp(r"^(aa(bb)?)+$", caseSensitive: false));
-  res.add(new RegExp(r"^(aa|aa(bb))+$", caseSensitive: false));
-  res.add(new RegExp(r"^(aa(bb)??)+$", caseSensitive: false));
-  res.add(new RegExp(r"^(?:aa(bb)?)+$", caseSensitive: false));
-  res.add(new RegExp(r"^(aa(b(b))?)+$", caseSensitive: false));
-  res.add(new RegExp(r"^(?:aa(b(b))?)+$", caseSensitive: false));
-  res.add(new RegExp(r"^(?:aa(b(?:b))?)+$", caseSensitive: false));
-  res.add(new RegExp(r"^(?:aa(bb(?:b))?)+$", caseSensitive: false));
-  res.add(new RegExp(r"^(?:aa(b(?:bb))?)+$", caseSensitive: false));
-  res.add(new RegExp(r"^(?:aa(?:b(b))?)+$", caseSensitive: false));
-  res.add(new RegExp(r"^(?:aa(?:b(bb))?)+$", caseSensitive: false));
-  res.add(new RegExp(r"^(aa(b(bb))?)+$", caseSensitive: false));
-  res.add(new RegExp(r"^(aa(bb(bb))?)+$", caseSensitive: false));
-  res.add(new RegExp(r"a", caseSensitive: false));
-  res.add(new RegExp(r"[\s]"));
-  res.add(new RegExp(r"[\S]"));
-  res.add(new RegExp(
-      r"123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"));
-  res.add(new RegExp(
-      r"\Q123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"));
-  res.add(new RegExp(r"\Q\E"));
-  res.add(new RegExp(r"\Q\Ex"));
-  res.add(new RegExp(r" \Q\E"));
-  res.add(new RegExp(r"a\Q\E"));
-  res.add(new RegExp(r"a\Q\Eb"));
-  res.add(new RegExp(r"\Q\Eabc"));
-  res.add(new RegExp(r"[.x.]", caseSensitive: false));
-  res.add(new RegExp(r"[=x=]", caseSensitive: false));
-  res.add(new RegExp(r"[:x:]", caseSensitive: false));
-  res.add(new RegExp(r"\l", caseSensitive: false));
-  res.add(new RegExp(r"\L", caseSensitive: false));
-  res.add(new RegExp(r"\N{name}", caseSensitive: false));
-  res.add(new RegExp(r"\u", caseSensitive: false));
-  res.add(new RegExp(r"\U", caseSensitive: false));
-  res.add(new RegExp(r"[[:space:]", caseSensitive: false));
-  res.add(new RegExp(r"[\s]", caseSensitive: false));
-  res.add(new RegExp(r"[[:space:]]", caseSensitive: false));
-  res.add(new RegExp(r"[[:space:]abcde]", caseSensitive: false));
-  res.add(new RegExp(r"(.*)\d+\1", caseSensitive: false));
-  res.add(new RegExp(r"(.*)\d+", caseSensitive: false));
-  res.add(new RegExp(r"(.*)\d+\1", caseSensitive: false));
-  res.add(new RegExp(r"(.*)\d+", caseSensitive: false));
-  res.add(new RegExp(r"(.*(xyz))\d+\2", caseSensitive: false));
-  res.add(new RegExp(r"((.*))\d+\1", caseSensitive: false));
-  res.add(new RegExp(r"a[b]", caseSensitive: false));
-  res.add(new RegExp(r"(?=a).*", caseSensitive: false));
-  res.add(new RegExp(r"(?=abc).xyz", caseSensitive: false));
-  res.add(new RegExp(r"(?=a)(?=b)", caseSensitive: false));
-  res.add(new RegExp(r"(?=.)a", caseSensitive: false));
-  res.add(new RegExp(r"((?=abcda)a)", caseSensitive: false));
-  res.add(new RegExp(r"((?=abcda)ab)", caseSensitive: false));
-  res.add(new RegExp(r"()a", caseSensitive: false));
-  res.add(new RegExp(r"(a)+", caseSensitive: false));
-  res.add(new RegExp(r"(a){2,3}", caseSensitive: false));
-  res.add(new RegExp(r"(a)*", caseSensitive: false));
-  res.add(new RegExp(r"[a]", caseSensitive: false));
-  res.add(new RegExp(r"[ab]", caseSensitive: false));
-  res.add(new RegExp(r"[ab]", caseSensitive: false));
-  res.add(new RegExp(r"[^a]", caseSensitive: false));
-  res.add(new RegExp(r"\d456", caseSensitive: false));
-  res.add(new RegExp(r"\d456", caseSensitive: false));
-  res.add(new RegExp(r"a^b", caseSensitive: false));
-  res.add(new RegExp(r"^a", multiLine: true, caseSensitive: false));
-  res.add(new RegExp(r"c|abc", caseSensitive: false));
-  res.add(new RegExp(r"(.*)a", caseSensitive: false));
-  res.add(new RegExp(r"(.*)a\1", caseSensitive: false));
-  res.add(new RegExp(r"(.*)a(b)\2", caseSensitive: false));
-  res.add(new RegExp(r"((.*)a|(.*)b)z", caseSensitive: false));
-  res.add(new RegExp(r"((.*)a|(.*)b)z\1", caseSensitive: false));
-  res.add(new RegExp(r"((.*)a|(.*)b)z\2", caseSensitive: false));
-  res.add(new RegExp(r"((.*)a|(.*)b)z\3", caseSensitive: false));
-  res.add(new RegExp(r"((.*)a|^(.*)b)z\3", caseSensitive: false));
-  res.add(new RegExp(
-      r"(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)a",
-      caseSensitive: false));
-  res.add(new RegExp(
-      r"(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)a\31",
-      caseSensitive: false));
-  res.add(new RegExp(
-      r"(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)|(.*)a\32",
-      caseSensitive: false));
-  res.add(new RegExp(r"(a)(bc)", caseSensitive: false));
-  res.add(new RegExp(r"(a+)*zz", caseSensitive: false));
-  res.add(new RegExp(r"((w\/|-|with)*(free|immediate)*.*?shipping\s*[!.-]*)",
-      caseSensitive: false));
-  res.add(new RegExp(r"((w\/|-|with)*(free|immediate)*.*?shipping\s*[!.-]*)",
-      caseSensitive: false));
-  res.add(new RegExp(r"a*.*b", caseSensitive: false));
-  res.add(new RegExp(r"(a|b)*.?c", caseSensitive: false));
-  res.add(new RegExp(r"abcde", caseSensitive: false));
-  res.add(new RegExp(r"a*b", caseSensitive: false));
-  res.add(new RegExp(r"a+b", caseSensitive: false));
-  res.add(new RegExp(r"(abc|def)x", caseSensitive: false));
-  res.add(new RegExp(r"(ab|cd){3,4}", caseSensitive: false));
-  res.add(new RegExp(r"([ab]{,4}c|xy)", caseSensitive: false));
-  res.add(new RegExp(r"([ab]{1,4}c|xy){4,5}?123", caseSensitive: false));
-  res.add(new RegExp(r"\b.*", caseSensitive: false));
-  res.add(new RegExp(r"\b.*", caseSensitive: false));
-  res.add(new RegExp(r"(?!.bcd).*", caseSensitive: false));
-  res.add(new RegExp(r"abcde", caseSensitive: false));
-  res.add(new RegExp(r"0{0,2}ABC", caseSensitive: false));
-  res.add(new RegExp(r"\d{3,}ABC", caseSensitive: false));
-  res.add(new RegExp(r"\d*ABC", caseSensitive: false));
-  res.add(new RegExp(r"[abc]+DE", caseSensitive: false));
-  res.add(new RegExp(r"[abc]?123", caseSensitive: false));
-  res.add(new RegExp(r"^(?:\d){3,5}X", caseSensitive: false));
-  res.add(new RegExp(r"^a", caseSensitive: false));
-  res.add(new RegExp(r"line\nbreak", caseSensitive: false));
-  res.add(new RegExp(r"line\nbreak", caseSensitive: false));
-  res.add(new RegExp(r"line\nbreak", multiLine: true, caseSensitive: false));
-  res.add(new RegExp(r"ab.cd", caseSensitive: false));
-  res.add(new RegExp(r"ab.cd", caseSensitive: false));
-  res.add(new RegExp(r"a(b)c", caseSensitive: false));
-  res.add(new RegExp(
-      r"Inthisnexttest,Jisnotsetattheouterlevel;consequentlyitisn'tsetinthepattern'soptions;consequentlypcre_get_named_substring()producesarandomvalue.",
-      caseSensitive: false));
-  res.add(new RegExp(r"\777", caseSensitive: false));
-  res.add(new RegExp(r"\s*,\s*", caseSensitive: false));
-  res.add(new RegExp(r"^abc", multiLine: true, caseSensitive: false));
-  res.add(new RegExp(r"abc$", multiLine: true, caseSensitive: false));
-  res.add(new RegExp(r"^abc", multiLine: true, caseSensitive: false));
-  res.add(new RegExp(r"^abc", multiLine: true, caseSensitive: false));
-  res.add(new RegExp(r"^abc", multiLine: true, caseSensitive: false));
-  res.add(new RegExp(r"^abc", multiLine: true, caseSensitive: false));
-  res.add(new RegExp(r"abc", caseSensitive: false));
-  res.add(new RegExp(r".*", caseSensitive: false));
-  res.add(new RegExp(r"\w+(.)(.)?def", caseSensitive: false));
-  res.add(new RegExp(
-      r"()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()(.(.))",
-      caseSensitive: false));
-  res.add(new RegExp(r"()[ab]xyz", caseSensitive: false));
-  res.add(new RegExp(r"(|)[ab]xyz", caseSensitive: false));
-  res.add(new RegExp(r"(|c)[ab]xyz", caseSensitive: false));
-  res.add(new RegExp(r"(|c?)[ab]xyz", caseSensitive: false));
-  res.add(new RegExp(r"(d?|c?)[ab]xyz", caseSensitive: false));
-  res.add(new RegExp(r"(d?|c)[ab]xyz", caseSensitive: false));
-  res.add(new RegExp(r"^a*b\d"));
-  res.add(new RegExp(r"^a*?b\d"));
-  res.add(new RegExp(r"^a+A\d"));
-  res.add(new RegExp(r"^a*A\d", caseSensitive: false));
-  res.add(new RegExp(r"(a*|b*)[cd]", caseSensitive: false));
-  res.add(new RegExp(r"(a+|b*)[cd]", caseSensitive: false));
-  res.add(new RegExp(r"(a*|b+)[cd]", caseSensitive: false));
-  res.add(new RegExp(r"(a+|b+)[cd]", caseSensitive: false));
-  res.add(new RegExp(
-      r"(((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((a)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))",
-      caseSensitive: false));
-  res.add(new RegExp(r"a*\d"));
-  res.add(new RegExp(r"a*\D"));
-  res.add(new RegExp(r"0*\d"));
-  res.add(new RegExp(r"0*\D"));
-  res.add(new RegExp(r"a*\s"));
-  res.add(new RegExp(r"a*\S"));
-  res.add(new RegExp(r" *\s"));
-  res.add(new RegExp(r" *\S"));
-  res.add(new RegExp(r"a*\w"));
-  res.add(new RegExp(r"a*\W"));
-  res.add(new RegExp(r"=*\w"));
-  res.add(new RegExp(r"=*\W"));
-  res.add(new RegExp(r"\d*a"));
-  res.add(new RegExp(r"\d*2"));
-  res.add(new RegExp(r"\d*\d"));
-  res.add(new RegExp(r"\d*\D"));
-  res.add(new RegExp(r"\d*\s"));
-  res.add(new RegExp(r"\d*\S"));
-  res.add(new RegExp(r"\d*\w"));
-  res.add(new RegExp(r"\d*\W"));
-  res.add(new RegExp(r"\D*a"));
-  res.add(new RegExp(r"\D*2"));
-  res.add(new RegExp(r"\D*\d"));
-  res.add(new RegExp(r"\D*\D"));
-  res.add(new RegExp(r"\D*\s"));
-  res.add(new RegExp(r"\D*\S"));
-  res.add(new RegExp(r"\D*\w"));
-  res.add(new RegExp(r"\D*\W"));
-  res.add(new RegExp(r"\s*a"));
-  res.add(new RegExp(r"\s*2"));
-  res.add(new RegExp(r"\s*\d"));
-  res.add(new RegExp(r"\s*\D"));
-  res.add(new RegExp(r"\s*\s"));
-  res.add(new RegExp(r"\s*\S"));
-  res.add(new RegExp(r"\s*\w"));
-  res.add(new RegExp(r"\s*\W"));
-  res.add(new RegExp(r"\S*a"));
-  res.add(new RegExp(r"\S*2"));
-  res.add(new RegExp(r"\S*\d"));
-  res.add(new RegExp(r"\S*\D"));
-  res.add(new RegExp(r"\S*\s"));
-  res.add(new RegExp(r"\S*\S"));
-  res.add(new RegExp(r"\S*\w"));
-  res.add(new RegExp(r"\S*\W"));
-  res.add(new RegExp(r"\w*a"));
-  res.add(new RegExp(r"\w*2"));
-  res.add(new RegExp(r"\w*\d"));
-  res.add(new RegExp(r"\w*\D"));
-  res.add(new RegExp(r"\w*\s"));
-  res.add(new RegExp(r"\w*\S"));
-  res.add(new RegExp(r"\w*\w"));
-  res.add(new RegExp(r"\w*\W"));
-  res.add(new RegExp(r"\W*a"));
-  res.add(new RegExp(r"\W*2"));
-  res.add(new RegExp(r"\W*\d"));
-  res.add(new RegExp(r"\W*\D"));
-  res.add(new RegExp(r"\W*\s"));
-  res.add(new RegExp(r"\W*\S"));
-  res.add(new RegExp(r"\W*\w"));
-  res.add(new RegExp(r"\W*\W"));
-  res.add(new RegExp(r"[^a]+a"));
-  res.add(new RegExp(r"[^a]+a", caseSensitive: false));
-  res.add(new RegExp(r"[^a]+A", caseSensitive: false));
-  res.add(new RegExp(r"[^a]+b"));
-  res.add(new RegExp(r"[^a]+\d"));
-  res.add(new RegExp(r"a*[^a]"));
-  res.add(new RegExp(r"^(?:(?:\1|X)(a|b))+"));
-  res.add(new RegExp(r"^[\E\Qa\E-\Qz\E]+"));
-  res.add(new RegExp(r"^[a\Q]bc\E]"));
-  res.add(new RegExp(r"(?=(\w+))\1:", caseSensitive: false));
-  res.add(new RegExp(r"(a|)*\d"));
-  res.add(new RegExp(r"^a.b"));
-  res.add(new RegExp(r"^abc.", multiLine: true));
-  res.add(new RegExp(r"abc.$", multiLine: true));
-  res.add(new RegExp(r"a"));
-  res.add(new RegExp(r"a"));
-  res.add(new RegExp(r"^a\Rb", caseSensitive: false));
-  res.add(new RegExp(r"^a\R*b", caseSensitive: false));
-  res.add(new RegExp(r"^a\R+b", caseSensitive: false));
-  res.add(new RegExp(r"^a\R{1,3}b", caseSensitive: false));
-  res.add(new RegExp(r"^a[\R]b", caseSensitive: false));
-  res.add(new RegExp(r"^(a(b))\1\g1\g{1}\g-1\g{-1}\g{-02}Z"));
-  res.add(new RegExp(r"^(a)\g-2"));
-  res.add(new RegExp(r"^(a)\g"));
-  res.add(new RegExp(r"^(a)\g{0}"));
-  res.add(new RegExp(r"^(a)\g{3"));
-  res.add(new RegExp(r"^(a)\g{4a}"));
-  res.add(new RegExp(r"^a.b"));
-  res.add(new RegExp(r".+foo"));
-  res.add(new RegExp(r".+foo"));
-  res.add(new RegExp(r".+foo"));
-  res.add(new RegExp(r".+foo"));
-  res.add(new RegExp(r"^$", multiLine: true));
-  res.add(new RegExp(r"abc.$", multiLine: true));
-  res.add(new RegExp(r"^X", multiLine: true));
-  res.add(new RegExp(r"(foo)\Kbar"));
-  res.add(new RegExp(r"(foo)(\Kbar|baz)"));
-  res.add(new RegExp(r"(foo\Kbar)baz"));
-  res.add(new RegExp(r"\g{A"));
-  res.add(new RegExp(r"\H\h\V\v"));
-  res.add(new RegExp(r"\H*\h+\V?\v{3,4}"));
-  res.add(new RegExp(r"\H{3,4}"));
-  res.add(new RegExp(r".\h{3,4}."));
-  res.add(new RegExp(r"\h*X\h?\H+Y\H?Z"));
-  res.add(new RegExp(r"\v*X\v?Y\v+Z\V*\x0a\V+\x0b\V{2,3}\x0c"));
-  res.add(new RegExp(r"[\h]"));
-  res.add(new RegExp(r"[\h]+"));
-  res.add(new RegExp(r"[\v]"));
-  res.add(new RegExp(r"[\H]"));
-  res.add(new RegExp(r"[^\h]"));
-  res.add(new RegExp(r"[\V]"));
-  res.add(new RegExp(r"[\x0a\V]"));
-  res.add(new RegExp(r"\H+\hY"));
-  res.add(new RegExp(r"\H+ Y"));
-  res.add(new RegExp(r"\h+A"));
-  res.add(new RegExp(r"\v*B"));
-  res.add(new RegExp(r"\V+\x0a"));
-  res.add(new RegExp(r"A+\h"));
-  res.add(new RegExp(r" *\H"));
-  res.add(new RegExp(r"A*\v"));
-  res.add(new RegExp(r"\x0b*\V"));
-  res.add(new RegExp(r"\d+\h"));
-  res.add(new RegExp(r"\d*\v"));
-  res.add(new RegExp(r"S+\h\S+\v"));
-  res.add(new RegExp(r"\w{3,}\h\w+\v"));
-  res.add(new RegExp(r"\h+\d\h+\w\h+\S\h+\H"));
-  res.add(new RegExp(r"\v+\d\v+\w\v+\S\v+\V"));
-  res.add(new RegExp(r"\H+\h\H+\d"));
-  res.add(new RegExp(r"\V+\v\V+\w"));
-  res.add(new RegExp(r"[\E]AAA"));
-  res.add(new RegExp(r"[\Q\E]AAA"));
-  res.add(new RegExp(r"[^\E]AAA"));
-  res.add(new RegExp(r"[^\Q\E]AAA"));
-  res.add(new RegExp(r"[\E^]AAA"));
-  res.add(new RegExp(r"[\Q\E^]AAA"));
-  res.add(new RegExp(r"\g6666666666"));
-  res.add(new RegExp(r"[\g6666666666]"));
-  res.add(new RegExp(r".+A"));
-  res.add(new RegExp(r"\nA"));
-  res.add(new RegExp(r"[\r\n]A"));
-  res.add(new RegExp(r"(\r|\n)A"));
-  res.add(new RegExp(r"a\Rb", caseSensitive: false));
-  res.add(new RegExp(r"a\Rb", caseSensitive: false));
-  res.add(new RegExp(r"a\R?b", caseSensitive: false));
-  res.add(new RegExp(r"a\R?b", caseSensitive: false));
-  res.add(new RegExp(r"a\R{2,4}b", caseSensitive: false));
-  res.add(new RegExp(r"a\R{2,4}b", caseSensitive: false));
-  res.add(new RegExp(r"\k''"));
-  res.add(new RegExp(r"\k<>"));
-  res.add(new RegExp(r"\k{}"));
-  res.add(new RegExp(r"[[:foo:]]"));
-  res.add(new RegExp(r"[[:1234:]]"));
-  res.add(new RegExp(r"[[:f\oo:]]"));
-  res.add(new RegExp(r"[[: :]]"));
-  res.add(new RegExp(r"[[:...:]]"));
-  res.add(new RegExp(r"[[:l\ower:]]"));
-  res.add(new RegExp(r"[[:abc\:]]"));
-  res.add(new RegExp(r"[abc[:x\]pqr:]]"));
-  res.add(new RegExp(r"[[:a\dz:]]"));
-  res.add(new RegExp(r"^(a|b\g<1>c)"));
-  res.add(new RegExp(r"^(a|b\g'1'c)"));
-  res.add(new RegExp(r"^(a|b\g'-1'c)"));
-  res.add(new RegExp(r"(^(a|b\g<-1>c))"));
-  res.add(new RegExp(r"(^(a|b\g<-1'c))"));
-  res.add(new RegExp(r"(^(a|b\g{-1}))"));
-  res.add(new RegExp(r"(\3)(\1)(a)"));
-  res.add(new RegExp(r"(\3)(\1)(a)"));
-  res.add(new RegExp(r"TA]"));
-  res.add(new RegExp(r"TA]"));
-  res.add(new RegExp(r"a[]b"));
-  res.add(new RegExp(r"a[^]b"));
-  res.add(new RegExp(r"a[]b"));
-  res.add(new RegExp(r"a[]+b"));
-  res.add(new RegExp(r"a[^]b"));
-  res.add(new RegExp(r"a[^]+b"));
-  res.add(new RegExp(r"a(?!)+b"));
-  res.add(new RegExp(r"(abc|pqr|123){0}[xyz]", caseSensitive: false));
-  res.add(new RegExp(r" End of testinput2 "));
-  res.add(new RegExp(r"a.b"));
-  res.add(new RegExp(r"a(.{3})b"));
-  res.add(new RegExp(r"a(.*?)(.)"));
-  res.add(new RegExp(r"a(.*?)(.)"));
-  res.add(new RegExp(r"a(.*)(.)"));
-  res.add(new RegExp(r"a(.*)(.)"));
-  res.add(new RegExp(r"a(.)(.)"));
-  res.add(new RegExp(r"a(.)(.)"));
-  res.add(new RegExp(r"a(.?)(.)"));
-  res.add(new RegExp(r"a(.?)(.)"));
-  res.add(new RegExp(r"a(.??)(.)"));
-  res.add(new RegExp(r"a(.??)(.)"));
-  res.add(new RegExp(r"a(.{3})b"));
-  res.add(new RegExp(r"a(.{3,})b"));
-  res.add(new RegExp(r"a(.{3,}?)b"));
-  res.add(new RegExp(r"a(.{3,5})b"));
-  res.add(new RegExp(r"a(.{3,5}?)b"));
-  res.add(new RegExp(r"X(\C{3})"));
-  res.add(new RegExp(r"X(\C{4})"));
-  res.add(new RegExp(r"X\C*"));
-  res.add(new RegExp(r"X\C*?"));
-  res.add(new RegExp(r"X\C{3,5}"));
-  res.add(new RegExp(r"X\C{3,5}?"));
-  res.add(new RegExp(r"[^a]+"));
-  res.add(new RegExp(r"^[^a]{2}"));
-  res.add(new RegExp(r"^[^a]{2,}"));
-  res.add(new RegExp(r"^[^a]{2,}?"));
-  res.add(new RegExp(r"[^a]+", caseSensitive: false));
-  res.add(new RegExp(r"^[^a]{2}", caseSensitive: false));
-  res.add(new RegExp(r"^[^a]{2,}", caseSensitive: false));
-  res.add(new RegExp(r"^[^a]{2,}?", caseSensitive: false));
-  res.add(new RegExp(r"\D*"));
-  res.add(new RegExp(r"\D*"));
-  res.add(new RegExp(r"\D"));
-  res.add(new RegExp(r">\S"));
-  res.add(new RegExp(r"\d"));
-  res.add(new RegExp(r"\s"));
-  res.add(new RegExp(r"\D+"));
-  res.add(new RegExp(r"\D{2,3}"));
-  res.add(new RegExp(r"\D{2,3}?"));
-  res.add(new RegExp(r"\d+"));
-  res.add(new RegExp(r"\d{2,3}"));
-  res.add(new RegExp(r"\d{2,3}?"));
-  res.add(new RegExp(r"\S+"));
-  res.add(new RegExp(r"\S{2,3}"));
-  res.add(new RegExp(r"\S{2,3}?"));
-  res.add(new RegExp(r">\s+<"));
-  res.add(new RegExp(r">\s{2,3}<"));
-  res.add(new RegExp(r">\s{2,3}?<"));
-  res.add(new RegExp(r"\w+"));
-  res.add(new RegExp(r"\w{2,3}"));
-  res.add(new RegExp(r"\w{2,3}?"));
-  res.add(new RegExp(r"\W+"));
-  res.add(new RegExp(r"\W{2,3}"));
-  res.add(new RegExp(r"\W{2,3}?"));
-  res.add(new RegExp(r"a\Cb"));
-  res.add(new RegExp(r"a\Cb"));
-  res.add(new RegExp(r"[\xFF]"));
-  res.add(new RegExp(r"[\xff]"));
-  res.add(new RegExp(r"[^\xFF]"));
-  res.add(new RegExp(r"[^\xff]"));
-  res.add(new RegExp(r"^[ac]*b"));
-  res.add(new RegExp(r"^[^x]*b", caseSensitive: false));
-  res.add(new RegExp(r"^[^x]*b"));
-  res.add(new RegExp(r"^\d*b"));
-  res.add(new RegExp(r"(|a)"));
-  res.add(new RegExp(r"\S\S"));
-  res.add(new RegExp(r"\S{2}"));
-  res.add(new RegExp(r"\W\W"));
-  res.add(new RegExp(r"\W{2}"));
-  res.add(new RegExp(r"\S"));
-  res.add(new RegExp(r"[\S]"));
-  res.add(new RegExp(r"\D"));
-  res.add(new RegExp(r"[\D]"));
-  res.add(new RegExp(r"\W"));
-  res.add(new RegExp(r"[\W]"));
-  res.add(new RegExp(r"[\S\s]*"));
-  res.add(new RegExp(r".[^\S]."));
-  res.add(new RegExp(r".[^\S\n]."));
-  res.add(new RegExp(r"[[:^alnum:]]"));
-  res.add(new RegExp(r"[[:^alpha:]]"));
-  res.add(new RegExp(r"[[:^ascii:]]"));
-  res.add(new RegExp(r"[[:^blank:]]"));
-  res.add(new RegExp(r"[[:^cntrl:]]"));
-  res.add(new RegExp(r"[[:^digit:]]"));
-  res.add(new RegExp(r"[[:^graph:]]"));
-  res.add(new RegExp(r"[[:^lower:]]"));
-  res.add(new RegExp(r"[[:^print:]]"));
-  res.add(new RegExp(r"[[:^punct:]]"));
-  res.add(new RegExp(r"[[:^space:]]"));
-  res.add(new RegExp(r"[[:^upper:]]"));
-  res.add(new RegExp(r"[[:^word:]]"));
-  res.add(new RegExp(r"[[:^xdigit:]]"));
-  res.add(new RegExp(r"^[^d]*?$"));
-  res.add(new RegExp(r"^[^d]*?$"));
-  res.add(new RegExp(r"^[^d]*?$", caseSensitive: false));
-  res.add(new RegExp(r"^[^d]*?$", caseSensitive: false));
-  res.add(new RegExp(r" End of testinput4 "));
-  res.add(new RegExp(r"\x80"));
-  res.add(new RegExp(r"\xff"));
-  res.add(new RegExp(r".{3,5}X"));
-  res.add(new RegExp(r".{3,5}?"));
-  res.add(new RegExp(r"X(\C)(.*)"));
-  res.add(new RegExp(r"^[ab]"));
-  res.add(new RegExp(r"^[^ab]"));
-  res.add(new RegExp(r"[^ab\xC0-\xF0]"));
-  res.add(new RegExp(r"[\xFF]"));
-  res.add(new RegExp(r"[\xff]"));
-  res.add(new RegExp(r"[^\xFF]"));
-  res.add(new RegExp(r"[^\xff]"));
-  res.add(new RegExp(r"anything"));
-  res.add(new RegExp(r"\W"));
-  res.add(new RegExp(r"\w"));
-  res.add(new RegExp(r"\777", caseSensitive: false));
-  res.add(new RegExp(r"\777", caseSensitive: false));
-  res.add(new RegExp(r"^abc.", multiLine: true));
-  res.add(new RegExp(r"abc.$", multiLine: true));
-  res.add(new RegExp(r"^a\Rb", caseSensitive: false));
-  res.add(new RegExp(r"^a\R*b", caseSensitive: false));
-  res.add(new RegExp(r"^a\R+b", caseSensitive: false));
-  res.add(new RegExp(r"^a\R{1,3}b", caseSensitive: false));
-  res.add(new RegExp(r"\H\h\V\v"));
-  res.add(new RegExp(r"\H*\h+\V?\v{3,4}"));
-  res.add(new RegExp(r"\H\h\V\v"));
-  res.add(new RegExp(r"\H*\h+\V?\v{3,4}"));
-  res.add(new RegExp(r"[\h]"));
-  res.add(new RegExp(r"[\h]{3,}"));
-  res.add(new RegExp(r"[\v]"));
-  res.add(new RegExp(r"[\H]"));
-  res.add(new RegExp(r"[\V]"));
-  res.add(new RegExp(r".*$"));
-  res.add(new RegExp(r"X"));
-  res.add(new RegExp(r"a\Rb", caseSensitive: false));
-  res.add(new RegExp(r"a\Rb", caseSensitive: false));
-  res.add(new RegExp(r"a\R?b", caseSensitive: false));
-  res.add(new RegExp(r"a\R?b", caseSensitive: false));
-  res.add(new RegExp(r".*a.*=.b.*"));
-  res.add(new RegExp(r"a[^]b"));
-  res.add(new RegExp(r"a[^]+b"));
-  res.add(new RegExp(r"X"));
-  res.add(new RegExp(r" End of testinput5 "));
-  res.add(new RegExp(r"^\pC\pL\pM\pN\pP\pS\pZ<"));
-  res.add(new RegExp(r"^\PC"));
-  res.add(new RegExp(r"^\PL"));
-  res.add(new RegExp(r"^\PM"));
-  res.add(new RegExp(r"^\PN"));
-  res.add(new RegExp(r"^\PP"));
-  res.add(new RegExp(r"^\PS"));
-  res.add(new RegExp(r"^\PZ"));
-  res.add(new RegExp(r"^\p{Cc}"));
-  res.add(new RegExp(r"^\p{Cf}"));
-  res.add(new RegExp(r"^\p{Cn}"));
-  res.add(new RegExp(r"^\p{Co}"));
-  res.add(new RegExp(r"^\p{Cs}"));
-  res.add(new RegExp(r"^\p{Ll}"));
-  res.add(new RegExp(r"^\p{Lm}"));
-  res.add(new RegExp(r"^\p{Lo}"));
-  res.add(new RegExp(r"^\p{Lt}"));
-  res.add(new RegExp(r"^\p{Lu}"));
-  res.add(new RegExp(r"^\p{Mc}"));
-  res.add(new RegExp(r"^\p{Me}"));
-  res.add(new RegExp(r"^\p{Mn}"));
-  res.add(new RegExp(r"^\p{Nl}"));
-  res.add(new RegExp(r"^\p{No}"));
-  res.add(new RegExp(r"^\p{Pc}"));
-  res.add(new RegExp(r"^\p{Pd}"));
-  res.add(new RegExp(r"^\p{Pe}"));
-  res.add(new RegExp(r"^\p{Pf}"));
-  res.add(new RegExp(r"^\p{Pi}"));
-  res.add(new RegExp(r"^\p{Po}"));
-  res.add(new RegExp(r"^\p{Ps}"));
-  res.add(new RegExp(r"^\p{Sk}"));
-  res.add(new RegExp(r"^\p{So}"));
-  res.add(new RegExp(r"^\p{Zl}"));
-  res.add(new RegExp(r"^\p{Zp}"));
-  res.add(new RegExp(r"^\p{Zs}"));
-  res.add(new RegExp(r"\p{Nd}{2,}(..)"));
-  res.add(new RegExp(r"\p{Nd}{2,}?(..)"));
-  res.add(new RegExp(r"\p{Nd}*(..)"));
-  res.add(new RegExp(r"\p{Nd}*?(..)"));
-  res.add(new RegExp(r"\p{Nd}{2}(..)"));
-  res.add(new RegExp(r"\p{Nd}{2,3}(..)"));
-  res.add(new RegExp(r"\p{Nd}{2,3}?(..)"));
-  res.add(new RegExp(r"\p{Nd}?(..)"));
-  res.add(new RegExp(r"\p{Nd}??(..)"));
-  res.add(new RegExp(r"\p{Lu}", caseSensitive: false));
-  res.add(new RegExp(r"\p{^Lu}", caseSensitive: false));
-  res.add(new RegExp(r"\P{Lu}", caseSensitive: false));
-  res.add(new RegExp(r"[\p{L}]"));
-  res.add(new RegExp(r"[\p{^L}]"));
-  res.add(new RegExp(r"[\P{L}]"));
-  res.add(new RegExp(r"[\P{^L}]"));
-  res.add(new RegExp(r"[\p{Nd}]"));
-  res.add(new RegExp(r"[\P{Nd}]+"));
-  res.add(new RegExp(r"\D+"));
-  res.add(new RegExp(r"[\D]+"));
-  res.add(new RegExp(r"[\P{Nd}]+"));
-  res.add(new RegExp(r"[\D\P{Nd}]+"));
-  res.add(new RegExp(r"\pL"));
-  res.add(new RegExp(r"\pL", caseSensitive: false));
-  res.add(new RegExp(r"\p{Lu}"));
-  res.add(new RegExp(r"\p{Lu}", caseSensitive: false));
-  res.add(new RegExp(r"\p{Ll}"));
-  res.add(new RegExp(r"\p{Ll}", caseSensitive: false));
-  res.add(new RegExp(r"^\X"));
-  res.add(new RegExp(r"^[\X]"));
-  res.add(new RegExp(r"^(\X*)C"));
-  res.add(new RegExp(r"^(\X*?)C"));
-  res.add(new RegExp(r"^(\X*)(.)"));
-  res.add(new RegExp(r"^(\X*?)(.)"));
-  res.add(new RegExp(r"^\X(.)"));
-  res.add(new RegExp(r"^\X{2,3}(.)"));
-  res.add(new RegExp(r"^\X{2,3}?(.)"));
-  res.add(new RegExp(r"^[\p{Arabic}]"));
-  res.add(new RegExp(r"^[\P{Yi}]"));
-  res.add(new RegExp(r"^\p{Any}X"));
-  res.add(new RegExp(r"^\P{Any}X"));
-  res.add(new RegExp(r"^\p{Any}?X"));
-  res.add(new RegExp(r"^\P{Any}?X"));
-  res.add(new RegExp(r"^\p{Any}*X"));
-  res.add(new RegExp(r"^\P{Any}*X"));
-  res.add(new RegExp(r"^[\p{Any}]X"));
-  res.add(new RegExp(r"^[\P{Any}]X"));
-  res.add(new RegExp(r"^[\p{Any}]?X"));
-  res.add(new RegExp(r"^[\P{Any}]?X"));
-  res.add(new RegExp(r"^[\p{Any}]+X"));
-  res.add(new RegExp(r"^[\P{Any}]+X"));
-  res.add(new RegExp(r"^[\p{Any}]*X"));
-  res.add(new RegExp(r"^[\P{Any}]*X"));
-  res.add(new RegExp(r"^\p{Any}{3,5}?"));
-  res.add(new RegExp(r"^\p{Any}{3,5}"));
-  res.add(new RegExp(r"^\P{Any}{3,5}?"));
-  res.add(new RegExp(r"^\p{L&}X"));
-  res.add(new RegExp(r"^[\p{L&}]X"));
-  res.add(new RegExp(r"^[\p{L&}]+X"));
-  res.add(new RegExp(r"^[\p{L&}]+?X"));
-  res.add(new RegExp(r"^\P{L&}X"));
-  res.add(new RegExp(r"^[\P{L&}]X"));
-  res.add(new RegExp(r"^(\p{Z}[^\p{C}\p{Z}]+)*$"));
-  res.add(new RegExp(r"([\pL]=(abc))*X"));
-  res.add(new RegExp(
-      r"^\p{Balinese}\p{Cuneiform}\p{Nko}\p{Phags_Pa}\p{Phoenician}"));
-  res.add(new RegExp(
-      r"The next two are special cases where the lengths of the different cases of the \nsame character differ. The first went wrong with heap frame storage; the 2nd\nwas broken in all cases."));
-  res.add(new RegExp(r"Check property support in non-UTF-8 mode"));
-  res.add(new RegExp(r"\p{L}{4}"));
-  res.add(new RegExp(r"\X{1,3}\d"));
-  res.add(new RegExp(r"\X?\d"));
-  res.add(new RegExp(r"\P{L}?\d"));
-  res.add(new RegExp(r"[\PPP\x8a]{1,}\x80"));
-  res.add(new RegExp(r"(?:[\PPa*]*){8,}"));
-  res.add(new RegExp(r"[\P{Any}]"));
-  res.add(new RegExp(r"[\P{Any}\E]"));
-  res.add(new RegExp(r"(\P{Yi}{2}\277)?"));
-  res.add(new RegExp(r"[\P{Yi}A]"));
-  res.add(new RegExp(r"[\P{Yi}\P{Yi}\P{Yi}A]"));
-  res.add(new RegExp(r"[^\P{Yi}A]"));
-  res.add(new RegExp(r"[^\P{Yi}\P{Yi}\P{Yi}A]"));
-  res.add(new RegExp(r"(\P{Yi}*\277)*"));
-  res.add(new RegExp(r"(\P{Yi}*?\277)*"));
-  res.add(new RegExp(r"(\P{Yi}?\277)*"));
-  res.add(new RegExp(r"(\P{Yi}??\277)*"));
-  res.add(new RegExp(r"(\P{Yi}{0,3}\277)*"));
-  res.add(new RegExp(r"(\P{Yi}{0,3}?\277)*"));
-  res.add(new RegExp(r"^[\p{Arabic}]"));
-  res.add(new RegExp(r"^\p{Cyrillic}"));
-  res.add(new RegExp(r"^\p{Common}"));
-  res.add(new RegExp(r"^\p{Inherited}"));
-  res.add(new RegExp(r"^\p{Shavian}"));
-  res.add(new RegExp(r"^\p{Deseret}"));
-  res.add(new RegExp(r"^\p{Osmanya}"));
-  res.add(new RegExp(r"\p{Zl}"));
-  res.add(new RegExp(
-      r"\p{Carian}\p{Cham}\p{Kayah_Li}\p{Lepcha}\p{Lycian}\p{Lydian}\p{Ol_Chiki}\p{Rejang}\p{Saurashtra}\p{Sundanese}\p{Vai}"));
-  res.add(new RegExp(r"(A)\1", caseSensitive: false));
-  res.add(new RegExp(r" End of testinput6 "));
-  res.add(new RegExp(r"abc"));
-  res.add(new RegExp(r"ab*c"));
-  res.add(new RegExp(r"ab+c"));
-  res.add(new RegExp(r"a*"));
-  res.add(new RegExp(r"(a|abcd|african)"));
-  res.add(new RegExp(r"^abc"));
-  res.add(new RegExp(r"^abc", multiLine: true));
-  res.add(new RegExp(r"\Aabc"));
-  res.add(new RegExp(r"\Aabc", multiLine: true));
-  res.add(new RegExp(r"\Gabc"));
-  res.add(new RegExp(r"x\dy\Dz"));
-  res.add(new RegExp(r"x\sy\Sz"));
-  res.add(new RegExp(r"x\wy\Wz"));
-  res.add(new RegExp(r"x.y"));
-  res.add(new RegExp(r"x.y"));
-  res.add(new RegExp(r"a\d\z"));
-  res.add(new RegExp(r"a\d\z", multiLine: true));
-  res.add(new RegExp(r"a\d\Z"));
-  res.add(new RegExp(r"a\d\Z", multiLine: true));
-  res.add(new RegExp(r"a\d$"));
-  res.add(new RegExp(r"a\d$", multiLine: true));
-  res.add(new RegExp(r"abc", caseSensitive: false));
-  res.add(new RegExp(r"[^a]"));
-  res.add(new RegExp(r"ab?\w"));
-  res.add(new RegExp(r"x{0,3}yz"));
-  res.add(new RegExp(r"x{3}yz"));
-  res.add(new RegExp(r"x{2,3}yz"));
-  res.add(new RegExp(r"[^a]+"));
-  res.add(new RegExp(r"[^a]*"));
-  res.add(new RegExp(r"[^a]{3,5}"));
-  res.add(new RegExp(r"\d*"));
-  res.add(new RegExp(r"\D*"));
-  res.add(new RegExp(r"\d+"));
-  res.add(new RegExp(r"\D+"));
-  res.add(new RegExp(r"\d?A"));
-  res.add(new RegExp(r"\D?A"));
-  res.add(new RegExp(r"a+"));
-  res.add(new RegExp(r"^.*xyz"));
-  res.add(new RegExp(r"^.+xyz"));
-  res.add(new RegExp(r"^.?xyz"));
-  res.add(new RegExp(r"^\d{2,3}X"));
-  res.add(new RegExp(r"^[abcd]\d"));
-  res.add(new RegExp(r"^[abcd]*\d"));
-  res.add(new RegExp(r"^[abcd]+\d"));
-  res.add(new RegExp(r"^a+X"));
-  res.add(new RegExp(r"^[abcd]?\d"));
-  res.add(new RegExp(r"^[abcd]{2,3}\d"));
-  res.add(new RegExp(r"^(abc)*\d"));
-  res.add(new RegExp(r"^(abc)+\d"));
-  res.add(new RegExp(r"^(abc)?\d"));
-  res.add(new RegExp(r"^(abc){2,3}\d"));
-  res.add(new RegExp(r"^(a*\w|ab)=(a*\w|ab)"));
-  res.add(new RegExp(r"^(?=abc)\w{5}:$"));
-  res.add(new RegExp(r"^(?!abc)\d\d$"));
-  res.add(new RegExp(r"(ab|cd){3,4}"));
-  res.add(new RegExp(r"^abc"));
-  res.add(new RegExp(r"^(a*|xyz)"));
-  res.add(new RegExp(r"xyz$"));
-  res.add(new RegExp(r"xyz$", multiLine: true));
-  res.add(new RegExp(r"\Gabc"));
-  res.add(new RegExp(r"^abcdef"));
-  res.add(new RegExp(r"^a{2,4}\d+z"));
-  res.add(new RegExp(r"^abcdef"));
-  res.add(new RegExp(r"(ab*(cd|ef))+X"));
-  res.add(new RegExp(r"the quick brown fox"));
-  res.add(new RegExp(r"The quick brown fox", caseSensitive: false));
-  res.add(new RegExp(r"abcd\t\n\r\f\a\e\071\x3b\$\\\?caxyz"));
-  res.add(new RegExp(r"a*abc?xyz+pqr{3}ab{2,}xy{4,5}pq{0,6}AB{0,}zz"));
-  res.add(new RegExp(r"^(abc){1,2}zz"));
-  res.add(new RegExp(r"^(b+?|a){1,2}?c"));
-  res.add(new RegExp(r"^(b+|a){1,2}c"));
-  res.add(new RegExp(r"^(b*|ba){1,2}?bc"));
-  res.add(new RegExp(r"^(ba|b*){1,2}?bc"));
-  res.add(new RegExp(r"^[ab\]cde]"));
-  res.add(new RegExp(r"^[]cde]"));
-  res.add(new RegExp(r"^[^ab\]cde]"));
-  res.add(new RegExp(r"^[^]cde]"));
-  res.add(new RegExp(r"^[0-9]+$"));
-  res.add(new RegExp(r"^.*nter"));
-  res.add(new RegExp(r"^xxx[0-9]+$"));
-  res.add(new RegExp(r"^.+[0-9][0-9][0-9]$"));
-  res.add(new RegExp(r"^.+?[0-9][0-9][0-9]$"));
-  res.add(new RegExp(r"^([^!]+)!(.+)=apquxz\.ixr\.zzz\.ac\.uk$"));
-  res.add(new RegExp(r":"));
-  res.add(new RegExp(r"([\da-f:]+)$", caseSensitive: false));
-  res.add(new RegExp(r"^.*\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$"));
-  res.add(new RegExp(r"^(\d+)\s+IN\s+SOA\s+(\S+)\s+(\S+)\s*\(\s*$"));
-  res.add(
-      new RegExp(r"^[a-zA-Z\d][a-zA-Z\d\-]*(\.[a-zA-Z\d][a-zA-z\d\-]*)*\.$"));
-  res.add(new RegExp(
-      r"^\*\.[a-z]([a-z\-\d]*[a-z\d]+)?(\.[a-z]([a-z\-\d]*[a-z\d]+)?)*$"));
-  res.add(new RegExp(r"^(?=ab(de))(abd)(e)"));
-  res.add(new RegExp(r"^(?!(ab)de|x)(abd)(f)"));
-  res.add(new RegExp(r"^(?=(ab(cd)))(ab)"));
-  res.add(new RegExp(r"^[\da-f](\.[\da-f])*$", caseSensitive: false));
-  res.add(new RegExp(r'^\".*\"\s*(;.*)?$'));
-  res.add(new RegExp(r"^$"));
-  res.add(new RegExp(r"^ab\sc$"));
-  res.add(new RegExp(r"^a\ b[c]d$"));
-  res.add(new RegExp(r"^(a(b(c)))(d(e(f)))(h(i(j)))(k(l(m)))$"));
-  res.add(new RegExp(r"^(?:a(b(c)))(?:d(e(f)))(?:h(i(j)))(?:k(l(m)))$"));
-  res.add(new RegExp(r"^[\w][\W][\s][\S][\d][\D][\b][\n][\c]][\022]"));
-  res.add(new RegExp(r"^a*\w"));
-  res.add(new RegExp(r"^a*?\w"));
-  res.add(new RegExp(r"^a+\w"));
-  res.add(new RegExp(r"^a+?\w"));
-  res.add(new RegExp(r"^\d{8}\w{2,}"));
-  res.add(new RegExp(r"^[aeiou\d]{4,5}$"));
-  res.add(new RegExp(r"^[aeiou\d]{4,5}?"));
-  res.add(new RegExp(
-      r"^From +([^ ]+) +[a-zA-Z][a-zA-Z][a-zA-Z] +[a-zA-Z][a-zA-Z][a-zA-Z] +[0-9]?[0-9] +[0-9][0-9]:[0-9][0-9]"));
-  res.add(new RegExp(r"^From\s+\S+\s+([a-zA-Z]{3}\s+){2}\d{1,2}\s+\d\d:\d\d"));
-  res.add(new RegExp(r"^12.34"));
-  res.add(new RegExp(r"\w+(?=\t)"));
-  res.add(new RegExp(r"foo(?!bar)(.*)"));
-  res.add(new RegExp(r"(?:(?!foo)...|^.{0,2})bar(.*)"));
-  res.add(new RegExp(r"^(\D*)(?=\d)(?!123)"));
-  res.add(new RegExp(r"^1234"));
-  res.add(new RegExp(r"^1234"));
-  res.add(new RegExp(r"abcd"));
-  res.add(new RegExp(r"^abcd"));
-  res.add(new RegExp(r"(?!^)abc"));
-  res.add(new RegExp(r"(?=^)abc"));
-  res.add(new RegExp(r"^[ab]{1,3}(ab*|b)"));
-  res.add(new RegExp(r"^[ab]{1,3}?(ab*|b)"));
-  res.add(new RegExp(r"^[ab]{1,3}?(ab*?|b)"));
-  res.add(new RegExp(r"^[ab]{1,3}(ab*?|b)"));
-  res.add(new RegExp(
-      r'(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*(?:(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|"(?:[^\\\x80-\xff\n\015"]|\\[^\x80-\xff])*")(?:(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*\.(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|"(?:[^\\\x80-\xff\n\015"]|\\[^\x80-\xff])*"))*(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*@(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|\[(?:[^\\\x80-\xff\n\015\[\]]|\\[^\x80-\xff])*\])(?:(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*\.(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|\[(?:[^\\\x80-\xff\n\015\[\]]|\\[^\x80-\xff])*\]))*|(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|"(?:[^\\\x80-\xff\n\015"]|\\[^\x80-\xff])*")(?:[^()<>@,;:".\\\[\]\x80-\xff\000-\010\012-\037]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\)|"(?:[^\\\x80-\xff\n\015"]|\\[^\x80-\xff])*")*<(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*(?:@(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|\[(?:[^\\\x80-\xff\n\015\[\]]|\\[^\x80-\xff])*\])(?:(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*\.(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|\[(?:[^\\\x80-\xff\n\015\[\]]|\\[^\x80-\xff])*\]))*(?:(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*,(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*@(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|\[(?:[^\\\x80-\xff\n\015\[\]]|\\[^\x80-\xff])*\])(?:(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*\.(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|\[(?:[^\\\x80-\xff\n\015\[\]]|\\[^\x80-\xff])*\]))*)*:(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*)?(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|"(?:[^\\\x80-\xff\n\015"]|\\[^\x80-\xff])*")(?:(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*\.(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|"(?:[^\\\x80-\xff\n\015"]|\\[^\x80-\xff])*"))*(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*@(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|\[(?:[^\\\x80-\xff\n\015\[\]]|\\[^\x80-\xff])*\])(?:(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*\.(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|\[(?:[^\\\x80-\xff\n\015\[\]]|\\[^\x80-\xff])*\]))*(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*>)(?:[\040\t]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff]|\((?:[^\\\x80-\xff\n\015()]|\\[^\x80-\xff])*\))*\))*'));
-  res.add(new RegExp(
-      r'[\040\t]*(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)[\040\t]*)*(?:(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|"[^\\\x80-\xff\n\015"]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015"]*)*")[\040\t]*(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)[\040\t]*)*(?:\.[\040\t]*(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)[\040\t]*)*(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|"[^\\\x80-\xff\n\015"]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015"]*)*")[\040\t]*(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)[\040\t]*)*)*@[\040\t]*(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)[\040\t]*)*(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|\[(?:[^\\\x80-\xff\n\015\[\]]|\\[^\x80-\xff])*\])[\040\t]*(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)[\040\t]*)*(?:\.[\040\t]*(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)[\040\t]*)*(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|\[(?:[^\\\x80-\xff\n\015\[\]]|\\[^\x80-\xff])*\])[\040\t]*(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)[\040\t]*)*)*|(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|"[^\\\x80-\xff\n\015"]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015"]*)*")[^()<>@,;:".\\\[\]\x80-\xff\000-\010\012-\037]*(?:(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)|"[^\\\x80-\xff\n\015"]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015"]*)*")[^()<>@,;:".\\\[\]\x80-\xff\000-\010\012-\037]*)*<[\040\t]*(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)[\040\t]*)*(?:@[\040\t]*(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)[\040\t]*)*(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|\[(?:[^\\\x80-\xff\n\015\[\]]|\\[^\x80-\xff])*\])[\040\t]*(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)[\040\t]*)*(?:\.[\040\t]*(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)[\040\t]*)*(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|\[(?:[^\\\x80-\xff\n\015\[\]]|\\[^\x80-\xff])*\])[\040\t]*(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)[\040\t]*)*)*(?:,[\040\t]*(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)[\040\t]*)*@[\040\t]*(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)[\040\t]*)*(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|\[(?:[^\\\x80-\xff\n\015\[\]]|\\[^\x80-\xff])*\])[\040\t]*(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)[\040\t]*)*(?:\.[\040\t]*(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)[\040\t]*)*(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|\[(?:[^\\\x80-\xff\n\015\[\]]|\\[^\x80-\xff])*\])[\040\t]*(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)[\040\t]*)*)*)*:[\040\t]*(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)[\040\t]*)*)?(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|"[^\\\x80-\xff\n\015"]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015"]*)*")[\040\t]*(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)[\040\t]*)*(?:\.[\040\t]*(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)[\040\t]*)*(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|"[^\\\x80-\xff\n\015"]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015"]*)*")[\040\t]*(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)[\040\t]*)*)*@[\040\t]*(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)[\040\t]*)*(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|\[(?:[^\\\x80-\xff\n\015\[\]]|\\[^\x80-\xff])*\])[\040\t]*(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)[\040\t]*)*(?:\.[\040\t]*(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)[\040\t]*)*(?:[^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff]+(?![^(\040)<>@,;:".\\\[\]\000-\037\x80-\xff])|\[(?:[^\\\x80-\xff\n\015\[\]]|\\[^\x80-\xff])*\])[\040\t]*(?:\([^\\\x80-\xff\n\015()]*(?:(?:\\[^\x80-\xff]|\([^\\\x80-\xff\n\015()]*(?:\\[^\x80-\xff][^\\\x80-\xff\n\015()]*)*\))[^\\\x80-\xff\n\015()]*)*\)[\040\t]*)*)*>)'));
-  res.add(new RegExp(r"abc\x0def\x00pqr\x000xyz\x0000AB"));
-  res.add(new RegExp(r"^[\000-\037]"));
-  res.add(new RegExp(r"\0*"));
-  res.add(new RegExp(r"A\x0{2,3}Z"));
-  res.add(new RegExp(r"^\s"));
-  res.add(new RegExp(r"^abc"));
-  res.add(new RegExp(r"ab{1,3}bc"));
-  res.add(new RegExp(r"([^.]*)\.([^:]*):[T ]+(.*)"));
-  res.add(new RegExp(r"([^.]*)\.([^:]*):[T ]+(.*)", caseSensitive: false));
-  res.add(new RegExp(r"([^.]*)\.([^:]*):[t ]+(.*)", caseSensitive: false));
-  res.add(new RegExp(r"^[W-c]+$"));
-  res.add(new RegExp(r"^[W-c]+$", caseSensitive: false));
-  res.add(new RegExp(r"^[\x3f-\x5F]+$", caseSensitive: false));
-  res.add(new RegExp(r"^abc$", multiLine: true));
-  res.add(new RegExp(r"^abc$"));
-  res.add(new RegExp(r"\Aabc\Z", multiLine: true));
-  res.add(new RegExp(r"\A(.)*\Z"));
-  res.add(new RegExp(r"\A(.)*\Z", multiLine: true));
-  res.add(new RegExp(r"(?:b)|(?::+)"));
-  res.add(new RegExp(r"[-az]+"));
-  res.add(new RegExp(r"[az-]+"));
-  res.add(new RegExp(r"[a\-z]+"));
-  res.add(new RegExp(r"[a-z]+"));
-  res.add(new RegExp(r"[\d-]+"));
-  res.add(new RegExp(r"[\d-z]+"));
-  res.add(new RegExp(r"\x5c"));
-  res.add(new RegExp(r"\x20Z"));
-  res.add(new RegExp(r"ab{3cd"));
-  res.add(new RegExp(r"ab{3,cd"));
-  res.add(new RegExp(r"ab{3,4a}cd"));
-  res.add(new RegExp(r"{4,5a}bc"));
-  res.add(new RegExp(r"^a.b"));
-  res.add(new RegExp(r"abc$"));
-  res.add(new RegExp(r"(abc)\123"));
-  res.add(new RegExp(r"(abc)\223"));
-  res.add(new RegExp(r"(abc)\323"));
-  res.add(new RegExp(r"(abc)\100"));
-  res.add(new RegExp(r"abc\81"));
-  res.add(new RegExp(r"abc\91"));
-  res.add(new RegExp(r"(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)\12\123"));
-  res.add(new RegExp(r"ab\idef"));
-  res.add(new RegExp(r"a{0}bc"));
-  res.add(new RegExp(r"(a|(bc)){0,0}?xyz"));
-  res.add(new RegExp(r"abc[\10]de"));
-  res.add(new RegExp(r"abc[\1]de"));
-  res.add(new RegExp(r"(abc)[\1]de"));
-  res.add(new RegExp(r"^([^a])([^\b])([^c]*)([^d]{3,4})"));
-  res.add(new RegExp(r"[^a]"));
-  res.add(new RegExp(r"[^a]", caseSensitive: false));
-  res.add(new RegExp(r"[^a]+"));
-  res.add(new RegExp(r"[^a]+", caseSensitive: false));
-  res.add(new RegExp(r"[^a]+"));
-  res.add(new RegExp(r"[^k]$"));
-  res.add(new RegExp(r"[^k]{2,3}$"));
-  res.add(new RegExp(r"^\d{8,}\@.+[^k]$"));
-  res.add(new RegExp(r"[^a]"));
-  res.add(new RegExp(r"[^a]", caseSensitive: false));
-  res.add(new RegExp(r"[^az]"));
-  res.add(new RegExp(r"[^az]", caseSensitive: false));
-  res.add(new RegExp(
-      r"\000\001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037\040\041\042\043\044\045\046\047\050\051\052\053\054\055\056\057\060\061\062\063\064\065\066\067\070\071\072\073\074\075\076\077\100\101\102\103\104\105\106\107\110\111\112\113\114\115\116\117\120\121\122\123\124\125\126\127\130\131\132\133\134\135\136\137\140\141\142\143\144\145\146\147\150\151\152\153\154\155\156\157\160\161\162\163\164\165\166\167\170\171\172\173\174\175\176\177\200\201\202\203\204\205\206\207\210\211\212\213\214\215\216\217\220\221\222\223\224\225\226\227\230\231\232\233\234\235\236\237\240\241\242\243\244\245\246\247\250\251\252\253\254\255\256\257\260\261\262\263\264\265\266\267\270\271\272\273\274\275\276\277\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337\340\341\342\343\344\345\346\347\350\351\352\353\354\355\356\357\360\361\362\363\364\365\366\367\370\371\372\373\374\375\376\377"));
-  res.add(new RegExp(r"P[^*]TAIRE[^*]{1,6}?LL"));
-  res.add(new RegExp(r"P[^*]TAIRE[^*]{1,}?LL"));
-  res.add(new RegExp(r"(\.\d\d[1-9]?)\d+"));
-  res.add(new RegExp(r"(\.\d\d((?=0)|\d(?=\d)))"));
-  res.add(new RegExp(r"\b(foo)\s+(\w+)", caseSensitive: false));
-  res.add(new RegExp(r"foo(.*)bar"));
-  res.add(new RegExp(r"foo(.*?)bar"));
-  res.add(new RegExp(r"(.*)(\d*)"));
-  res.add(new RegExp(r"(.*)(\d+)"));
-  res.add(new RegExp(r"(.*?)(\d*)"));
-  res.add(new RegExp(r"(.*?)(\d+)"));
-  res.add(new RegExp(r"(.*)(\d+)$"));
-  res.add(new RegExp(r"(.*?)(\d+)$"));
-  res.add(new RegExp(r"(.*)\b(\d+)$"));
-  res.add(new RegExp(r"(.*\D)(\d+)$"));
-  res.add(new RegExp(r"^\D*(?!123)"));
-  res.add(new RegExp(r"^(\D*)(?=\d)(?!123)"));
-  res.add(new RegExp(r"^[W-]46]"));
-  res.add(new RegExp(r"^[W-\]46]"));
-  res.add(new RegExp(r"\d\d\/\d\d\/\d\d\d\d"));
-  res.add(new RegExp(r"word (?:[a-zA-Z0-9]+ ){0,10}otherword"));
-  res.add(new RegExp(r"word (?:[a-zA-Z0-9]+ ){0,300}otherword"));
-  res.add(new RegExp(r"^(a){0,0}"));
-  res.add(new RegExp(r"^(a){0,1}"));
-  res.add(new RegExp(r"^(a){0,2}"));
-  res.add(new RegExp(r"^(a){0,3}"));
-  res.add(new RegExp(r"^(a){0,}"));
-  res.add(new RegExp(r"^(a){1,1}"));
-  res.add(new RegExp(r"^(a){1,2}"));
-  res.add(new RegExp(r"^(a){1,3}"));
-  res.add(new RegExp(r"^(a){1,}"));
-  res.add(new RegExp(r".*\.gif"));
-  res.add(new RegExp(r".{0,}\.gif"));
-  res.add(new RegExp(r".*\.gif", multiLine: true));
-  res.add(new RegExp(r".*\.gif"));
-  res.add(new RegExp(r".*\.gif", multiLine: true));
-  res.add(new RegExp(r".*$"));
-  res.add(new RegExp(r".*$", multiLine: true));
-  res.add(new RegExp(r".*$"));
-  res.add(new RegExp(r".*$", multiLine: true));
-  res.add(new RegExp(r".*$"));
-  res.add(new RegExp(r".*$", multiLine: true));
-  res.add(new RegExp(r".*$"));
-  res.add(new RegExp(r".*$", multiLine: true));
-  res.add(new RegExp(r"(.*X|^B)"));
-  res.add(new RegExp(r"(.*X|^B)", multiLine: true));
-  res.add(new RegExp(r"(.*X|^B)"));
-  res.add(new RegExp(r"(.*X|^B)", multiLine: true));
-  res.add(new RegExp(r"^.*B"));
-  res.add(new RegExp(
-      r"^[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]"));
-  res.add(new RegExp(r"^\d\d\d\d\d\d\d\d\d\d\d\d"));
-  res.add(new RegExp(r"^[\d][\d][\d][\d][\d][\d][\d][\d][\d][\d][\d][\d]"));
-  res.add(new RegExp(r"^[abc]{12}"));
-  res.add(new RegExp(r"^[a-c]{12}"));
-  res.add(new RegExp(r"^(a|b|c){12}"));
-  res.add(new RegExp(r"^[abcdefghijklmnopqrstuvwxy0123456789]"));
-  res.add(new RegExp(r"abcde{0,0}"));
-  res.add(new RegExp(r"ab[cd]{0,0}e"));
-  res.add(new RegExp(r"ab(c){0,0}d"));
-  res.add(new RegExp(r"a(b*)"));
-  res.add(new RegExp(r"ab\d{0}e"));
-  res.add(new RegExp(r'"([^\\"]+|\\.)*"'));
-  res.add(new RegExp(r".*?"));
-  res.add(new RegExp(r"\b"));
-  res.add(new RegExp(r"\b"));
-  res.add(new RegExp(
-      r"<tr([\w\W\s\d][^<>]{0,})><TD([\w\W\s\d][^<>]{0,})>([\d]{0,}\.)(.*)((<BR>([\w\W\s\d][^<>]{0,})|[\s]{0,}))<\/a><\/TD><TD([\w\W\s\d][^<>]{0,})>([\w\W\s\d][^<>]{0,})<\/TD><TD([\w\W\s\d][^<>]{0,})>([\w\W\s\d][^<>]{0,})<\/TD><\/TR>",
-      caseSensitive: false));
-  res.add(new RegExp(r"a[^a]b"));
-  res.add(new RegExp(r"a.b"));
-  res.add(new RegExp(r"a[^a]b"));
-  res.add(new RegExp(r"a.b"));
-  res.add(new RegExp(r"^(b+?|a){1,2}?c"));
-  res.add(new RegExp(r"^(b+|a){1,2}?c"));
-  res.add(new RegExp(r"(?!\A)x", multiLine: true));
-  res.add(new RegExp(r"\x0{ab}"));
-  res.add(new RegExp(r"(A|B)*?CD"));
-  res.add(new RegExp(r"(A|B)*CD"));
-  res.add(new RegExp(r"\Aabc\z", multiLine: true));
-  res.add(new RegExp(r"(\d+)(\w)"));
-  res.add(new RegExp(r"(a+|b+|c+)*c"));
-  res.add(new RegExp(r"(abc|)+"));
-  res.add(new RegExp(r"([a]*)*"));
-  res.add(new RegExp(r"([ab]*)*"));
-  res.add(new RegExp(r"([^a]*)*"));
-  res.add(new RegExp(r"([^ab]*)*"));
-  res.add(new RegExp(r"([a]*?)*"));
-  res.add(new RegExp(r"([ab]*?)*"));
-  res.add(new RegExp(r"([^a]*?)*"));
-  res.add(new RegExp(r"([^ab]*?)*"));
-  res.add(new RegExp(
-      r"The following tests are taken from the Perl 5.005 test suite; some of them"));
-  res.add(new RegExp(
-      r"are compatible with 5.004, but I'd rather not have to sort them out."));
-  res.add(new RegExp(r"abc"));
-  res.add(new RegExp(r"ab*c"));
-  res.add(new RegExp(r"ab*bc"));
-  res.add(new RegExp(r".{1}"));
-  res.add(new RegExp(r".{3,4}"));
-  res.add(new RegExp(r"ab{0,}bc"));
-  res.add(new RegExp(r"ab+bc"));
-  res.add(new RegExp(r"ab{1,}bc"));
-  res.add(new RegExp(r"ab+bc"));
-  res.add(new RegExp(r"ab{1,}bc"));
-  res.add(new RegExp(r"ab{1,3}bc"));
-  res.add(new RegExp(r"ab{3,4}bc"));
-  res.add(new RegExp(r"ab{4,5}bc"));
-  res.add(new RegExp(r"ab?bc"));
-  res.add(new RegExp(r"ab{0,1}bc"));
-  res.add(new RegExp(r"ab?bc"));
-  res.add(new RegExp(r"ab?c"));
-  res.add(new RegExp(r"ab{0,1}c"));
-  res.add(new RegExp(r"^abc$"));
-  res.add(new RegExp(r"^abc"));
-  res.add(new RegExp(r"^abc$"));
-  res.add(new RegExp(r"abc$"));
-  res.add(new RegExp(r"^"));
-  res.add(new RegExp(r"$"));
-  res.add(new RegExp(r"a.c"));
-  res.add(new RegExp(r"a.*c"));
-  res.add(new RegExp(r"a[bc]d"));
-  res.add(new RegExp(r"a[b-d]e"));
-  res.add(new RegExp(r"a[b-d]"));
-  res.add(new RegExp(r"a[-b]"));
-  res.add(new RegExp(r"a[b-]"));
-  res.add(new RegExp(r"a]"));
-  res.add(new RegExp(r"a[]]b"));
-  res.add(new RegExp(r"a[^bc]d"));
-  res.add(new RegExp(r"a[^-b]c"));
-  res.add(new RegExp(r"a[^]b]c"));
-  res.add(new RegExp(r"\ba\b"));
-  res.add(new RegExp(r"\by\b"));
-  res.add(new RegExp(r"\Ba\B"));
-  res.add(new RegExp(r"\By\b"));
-  res.add(new RegExp(r"\by\B"));
-  res.add(new RegExp(r"\By\B"));
-  res.add(new RegExp(r"\w"));
-  res.add(new RegExp(r"\W"));
-  res.add(new RegExp(r"a\sb"));
-  res.add(new RegExp(r"a\Sb"));
-  res.add(new RegExp(r"\d"));
-  res.add(new RegExp(r"\D"));
-  res.add(new RegExp(r"[\w]"));
-  res.add(new RegExp(r"[\W]"));
-  res.add(new RegExp(r"a[\s]b"));
-  res.add(new RegExp(r"a[\S]b"));
-  res.add(new RegExp(r"[\d]"));
-  res.add(new RegExp(r"[\D]"));
-  res.add(new RegExp(r"ab|cd"));
-  res.add(new RegExp(r"()ef"));
-  res.add(new RegExp(r"$b"));
-  res.add(new RegExp(r"a\(b"));
-  res.add(new RegExp(r"a\\b"));
-  res.add(new RegExp(r"((a))"));
-  res.add(new RegExp(r"(a)b(c)"));
-  res.add(new RegExp(r"a+b+c"));
-  res.add(new RegExp(r"a{1,}b{1,}c"));
-  res.add(new RegExp(r"a.+?c"));
-  res.add(new RegExp(r"(a+|b)*"));
-  res.add(new RegExp(r"(a+|b){0,}"));
-  res.add(new RegExp(r"(a+|b)+"));
-  res.add(new RegExp(r"(a+|b){1,}"));
-  res.add(new RegExp(r"(a+|b)?"));
-  res.add(new RegExp(r"(a+|b){0,1}"));
-  res.add(new RegExp(r"[^ab]*"));
-  res.add(new RegExp(r"abc"));
-  res.add(new RegExp(r"a*"));
-  res.add(new RegExp(r"([abc])*d"));
-  res.add(new RegExp(r"([abc])*bcd"));
-  res.add(new RegExp(r"a|b|c|d|e"));
-  res.add(new RegExp(r"(a|b|c|d|e)f"));
-  res.add(new RegExp(r"abcd*efg"));
-  res.add(new RegExp(r"ab*"));
-  res.add(new RegExp(r"(ab|cd)e"));
-  res.add(new RegExp(r"[abhgefdc]ij"));
-  res.add(new RegExp(r"^(ab|cd)e"));
-  res.add(new RegExp(r"(abc|)ef"));
-  res.add(new RegExp(r"(a|b)c*d"));
-  res.add(new RegExp(r"(ab|ab*)bc"));
-  res.add(new RegExp(r"a([bc]*)c*"));
-  res.add(new RegExp(r"a([bc]*)(c*d)"));
-  res.add(new RegExp(r"a([bc]+)(c*d)"));
-  res.add(new RegExp(r"a([bc]*)(c+d)"));
-  res.add(new RegExp(r"a[bcd]*dcdcde"));
-  res.add(new RegExp(r"a[bcd]+dcdcde"));
-  res.add(new RegExp(r"(ab|a)b*c"));
-  res.add(new RegExp(r"((a)(b)c)(d)"));
-  res.add(new RegExp(r"[a-zA-Z_][a-zA-Z0-9_]*"));
-  res.add(new RegExp(r"^a(bc+|b[eh])g|.h$"));
-  res.add(new RegExp(r"(bc+d$|ef*g.|h?i(j|k))"));
-  res.add(new RegExp(r"((((((((((a))))))))))"));
-  res.add(new RegExp(r"(((((((((a)))))))))"));
-  res.add(new RegExp(r"multiple words of text"));
-  res.add(new RegExp(r"multiple words"));
-  res.add(new RegExp(r"(.*)c(.*)"));
-  res.add(new RegExp(r"\((.*), (.*)\)"));
-  res.add(new RegExp(r"[k]"));
-  res.add(new RegExp(r"abcd"));
-  res.add(new RegExp(r"a(bc)d"));
-  res.add(new RegExp(r"a[-]?c"));
-  res.add(new RegExp(r"abc", caseSensitive: false));
-  res.add(new RegExp(r"ab*c", caseSensitive: false));
-  res.add(new RegExp(r"ab*bc", caseSensitive: false));
-  res.add(new RegExp(r"ab*?bc", caseSensitive: false));
-  res.add(new RegExp(r"ab{0,}?bc", caseSensitive: false));
-  res.add(new RegExp(r"ab+?bc", caseSensitive: false));
-  res.add(new RegExp(r"ab+bc", caseSensitive: false));
-  res.add(new RegExp(r"ab{1,}bc", caseSensitive: false));
-  res.add(new RegExp(r"ab+bc", caseSensitive: false));
-  res.add(new RegExp(r"ab{1,}?bc", caseSensitive: false));
-  res.add(new RegExp(r"ab{1,3}?bc", caseSensitive: false));
-  res.add(new RegExp(r"ab{3,4}?bc", caseSensitive: false));
-  res.add(new RegExp(r"ab{4,5}?bc", caseSensitive: false));
-  res.add(new RegExp(r"ab??bc", caseSensitive: false));
-  res.add(new RegExp(r"ab{0,1}?bc", caseSensitive: false));
-  res.add(new RegExp(r"ab??bc", caseSensitive: false));
-  res.add(new RegExp(r"ab??c", caseSensitive: false));
-  res.add(new RegExp(r"ab{0,1}?c", caseSensitive: false));
-  res.add(new RegExp(r"^abc$", caseSensitive: false));
-  res.add(new RegExp(r"^abc", caseSensitive: false));
-  res.add(new RegExp(r"^abc$", caseSensitive: false));
-  res.add(new RegExp(r"abc$", caseSensitive: false));
-  res.add(new RegExp(r"^", caseSensitive: false));
-  res.add(new RegExp(r"$", caseSensitive: false));
-  res.add(new RegExp(r"a.c", caseSensitive: false));
-  res.add(new RegExp(r"a.*?c", caseSensitive: false));
-  res.add(new RegExp(r"a.*c", caseSensitive: false));
-  res.add(new RegExp(r"a[bc]d", caseSensitive: false));
-  res.add(new RegExp(r"a[b-d]e", caseSensitive: false));
-  res.add(new RegExp(r"a[b-d]", caseSensitive: false));
-  res.add(new RegExp(r"a[-b]", caseSensitive: false));
-  res.add(new RegExp(r"a[b-]", caseSensitive: false));
-  res.add(new RegExp(r"a]", caseSensitive: false));
-  res.add(new RegExp(r"a[]]b", caseSensitive: false));
-  res.add(new RegExp(r"a[^bc]d", caseSensitive: false));
-  res.add(new RegExp(r"a[^-b]c", caseSensitive: false));
-  res.add(new RegExp(r"a[^]b]c", caseSensitive: false));
-  res.add(new RegExp(r"ab|cd", caseSensitive: false));
-  res.add(new RegExp(r"()ef", caseSensitive: false));
-  res.add(new RegExp(r"$b", caseSensitive: false));
-  res.add(new RegExp(r"a\(b", caseSensitive: false));
-  res.add(new RegExp(r"a\\b", caseSensitive: false));
-  res.add(new RegExp(r"((a))", caseSensitive: false));
-  res.add(new RegExp(r"(a)b(c)", caseSensitive: false));
-  res.add(new RegExp(r"a+b+c", caseSensitive: false));
-  res.add(new RegExp(r"a{1,}b{1,}c", caseSensitive: false));
-  res.add(new RegExp(r"a.+?c", caseSensitive: false));
-  res.add(new RegExp(r"a.*?c", caseSensitive: false));
-  res.add(new RegExp(r"a.{0,5}?c", caseSensitive: false));
-  res.add(new RegExp(r"(a+|b)*", caseSensitive: false));
-  res.add(new RegExp(r"(a+|b){0,}", caseSensitive: false));
-  res.add(new RegExp(r"(a+|b)+", caseSensitive: false));
-  res.add(new RegExp(r"(a+|b){1,}", caseSensitive: false));
-  res.add(new RegExp(r"(a+|b)?", caseSensitive: false));
-  res.add(new RegExp(r"(a+|b){0,1}", caseSensitive: false));
-  res.add(new RegExp(r"(a+|b){0,1}?", caseSensitive: false));
-  res.add(new RegExp(r"[^ab]*", caseSensitive: false));
-  res.add(new RegExp(r"abc", caseSensitive: false));
-  res.add(new RegExp(r"a*", caseSensitive: false));
-  res.add(new RegExp(r"([abc])*d", caseSensitive: false));
-  res.add(new RegExp(r"([abc])*bcd", caseSensitive: false));
-  res.add(new RegExp(r"a|b|c|d|e", caseSensitive: false));
-  res.add(new RegExp(r"(a|b|c|d|e)f", caseSensitive: false));
-  res.add(new RegExp(r"abcd*efg", caseSensitive: false));
-  res.add(new RegExp(r"ab*", caseSensitive: false));
-  res.add(new RegExp(r"(ab|cd)e", caseSensitive: false));
-  res.add(new RegExp(r"[abhgefdc]ij", caseSensitive: false));
-  res.add(new RegExp(r"^(ab|cd)e", caseSensitive: false));
-  res.add(new RegExp(r"(abc|)ef", caseSensitive: false));
-  res.add(new RegExp(r"(a|b)c*d", caseSensitive: false));
-  res.add(new RegExp(r"(ab|ab*)bc", caseSensitive: false));
-  res.add(new RegExp(r"a([bc]*)c*", caseSensitive: false));
-  res.add(new RegExp(r"a([bc]*)(c*d)", caseSensitive: false));
-  res.add(new RegExp(r"a([bc]+)(c*d)", caseSensitive: false));
-  res.add(new RegExp(r"a([bc]*)(c+d)", caseSensitive: false));
-  res.add(new RegExp(r"a[bcd]*dcdcde", caseSensitive: false));
-  res.add(new RegExp(r"a[bcd]+dcdcde", caseSensitive: false));
-  res.add(new RegExp(r"(ab|a)b*c", caseSensitive: false));
-  res.add(new RegExp(r"((a)(b)c)(d)", caseSensitive: false));
-  res.add(new RegExp(r"[a-zA-Z_][a-zA-Z0-9_]*", caseSensitive: false));
-  res.add(new RegExp(r"^a(bc+|b[eh])g|.h$", caseSensitive: false));
-  res.add(new RegExp(r"(bc+d$|ef*g.|h?i(j|k))", caseSensitive: false));
-  res.add(new RegExp(r"((((((((((a))))))))))", caseSensitive: false));
-  res.add(new RegExp(r"(((((((((a)))))))))", caseSensitive: false));
-  res.add(new RegExp(r"(?:(?:(?:(?:(?:(?:(?:(?:(?:(a))))))))))",
-      caseSensitive: false));
-  res.add(new RegExp(r"(?:(?:(?:(?:(?:(?:(?:(?:(?:(a|b|c))))))))))",
-      caseSensitive: false));
-  res.add(new RegExp(r"multiple words of text", caseSensitive: false));
-  res.add(new RegExp(r"multiple words", caseSensitive: false));
-  res.add(new RegExp(r"(.*)c(.*)", caseSensitive: false));
-  res.add(new RegExp(r"\((.*), (.*)\)", caseSensitive: false));
-  res.add(new RegExp(r"[k]", caseSensitive: false));
-  res.add(new RegExp(r"abcd", caseSensitive: false));
-  res.add(new RegExp(r"a(bc)d", caseSensitive: false));
-  res.add(new RegExp(r"a[-]?c", caseSensitive: false));
-  res.add(new RegExp(r"a(?!b)."));
-  res.add(new RegExp(r"a(?=d)."));
-  res.add(new RegExp(r"a(?=c|d)."));
-  res.add(new RegExp(r"a(?:b|c|d)(.)"));
-  res.add(new RegExp(r"a(?:b|c|d)*(.)"));
-  res.add(new RegExp(r"a(?:b|c|d)+?(.)"));
-  res.add(new RegExp(r"a(?:b|c|d)+(.)"));
-  res.add(new RegExp(r"a(?:b|c|d){2}(.)"));
-  res.add(new RegExp(r"a(?:b|c|d){4,5}(.)"));
-  res.add(new RegExp(r"a(?:b|c|d){4,5}?(.)"));
-  res.add(new RegExp(r"((foo)|(bar))*"));
-  res.add(new RegExp(r"a(?:b|c|d){6,7}(.)"));
-  res.add(new RegExp(r"a(?:b|c|d){6,7}?(.)"));
-  res.add(new RegExp(r"a(?:b|c|d){5,6}(.)"));
-  res.add(new RegExp(r"a(?:b|c|d){5,6}?(.)"));
-  res.add(new RegExp(r"a(?:b|c|d){5,7}(.)"));
-  res.add(new RegExp(r"a(?:b|c|d){5,7}?(.)"));
-  res.add(new RegExp(r"a(?:b|(c|e){1,2}?|d)+?(.)"));
-  res.add(new RegExp(r"^(.+)?B"));
-  res.add(new RegExp(r"^([^a-z])|(\^)$"));
-  res.add(new RegExp(r"^[<>]&"));
-  res.add(new RegExp(r"(?:(f)(o)(o)|(b)(a)(r))*"));
-  res.add(new RegExp(r"(?:..)*a"));
-  res.add(new RegExp(r"(?:..)*?a"));
-  res.add(new RegExp(r"^(){3,5}"));
-  res.add(new RegExp(r"^(a+)*ax"));
-  res.add(new RegExp(r"^((a|b)+)*ax"));
-  res.add(new RegExp(r"^((a|bc)+)*ax"));
-  res.add(new RegExp(r"(a|x)*ab"));
-  res.add(new RegExp(r"(a)*ab"));
-  res.add(new RegExp(r"(?:c|d)(?:)(?:a(?:)(?:b)(?:b(?:))(?:b(?:)(?:b)))"));
-  res.add(new RegExp(
-      r"(?:c|d)(?:)(?:aaaaaaaa(?:)(?:bbbbbbbb)(?:bbbbbbbb(?:))(?:bbbbbbbb(?:)(?:bbbbbbbb)))"));
-  res.add(new RegExp(r"foo\w*\d{4}baz"));
-  res.add(new RegExp(r"x(~~)*(?:(?:F)?)?"));
-  res.add(new RegExp(r"^a{3}c"));
-  res.add(new RegExp(r"^a{3}c"));
-  res.add(new RegExp(r"^(?:a?b?)*$"));
-  res.add(new RegExp(r"^b"));
-  res.add(new RegExp(r"()^b"));
-  res.add(new RegExp(r"(\w+:)+"));
-  res.add(new RegExp(r"([\w:]+::)?(\w+)$"));
-  res.add(new RegExp(r"^[^bcd]*(c+)"));
-  res.add(new RegExp(r"(a*)b+"));
-  res.add(new RegExp(r"([\w:]+::)?(\w+)$"));
-  res.add(new RegExp(r"^[^bcd]*(c+)"));
-  res.add(new RegExp(r"(>a+)ab"));
-  res.add(new RegExp(r"([[:]+)"));
-  res.add(new RegExp(r"([[=]+)"));
-  res.add(new RegExp(r"([[.]+)"));
-  res.add(new RegExp(r"a\Z"));
-  res.add(new RegExp(r"b\Z"));
-  res.add(new RegExp(r"b\z"));
-  res.add(new RegExp(r"b\Z"));
-  res.add(new RegExp(r"b\z"));
-  res.add(new RegExp(r"((Z)+|A)*"));
-  res.add(new RegExp(r"(Z()|A)*"));
-  res.add(new RegExp(r"(Z(())|A)*"));
-  res.add(new RegExp(r"a*"));
-  res.add(new RegExp(r"^[\d-a]"));
-  res.add(new RegExp(r"[[:space:]]+"));
-  res.add(new RegExp(r"[[:blank:]]+"));
-  res.add(new RegExp(r"[\s]+"));
-  res.add(new RegExp(r"\s+"));
-  res.add(new RegExp(r"ab"));
-  res.add(new RegExp(r"(?!\A)x", multiLine: true));
-  res.add(new RegExp(r"(?!^)x", multiLine: true));
-  res.add(new RegExp(r"abc\Qabc\Eabc"));
-  res.add(new RegExp(r"abc\Qabc\Eabc"));
-  res.add(new RegExp(r"abc\Qliteral\E"));
-  res.add(new RegExp(r"abc\Qliteral"));
-  res.add(new RegExp(r"abc\Qliteral\E"));
-  res.add(new RegExp(r"abc\Qliteral\E"));
-  res.add(new RegExp(r"\Qabc\$xyz\E"));
-  res.add(new RegExp(r"\Qabc\E\$\Qxyz\E"));
-  res.add(new RegExp(r"\Gabc"));
-  res.add(new RegExp(r"\Gabc."));
-  res.add(new RegExp(r"abc."));
-  res.add(new RegExp(r"[z\Qa-d]\E]"));
-  res.add(new RegExp(r"[\z\C]"));
-  res.add(new RegExp(r"\M"));
-  res.add(new RegExp(r"(a+)*b"));
-  res.add(new RegExp(r"line\nbreak"));
-  res.add(new RegExp(r"line\nbreak"));
-  res.add(new RegExp(r"line\nbreak", multiLine: true));
-  res.add(new RegExp(r"1234"));
-  res.add(new RegExp(r"1234"));
-  res.add(new RegExp(r"^", multiLine: true));
-  res.add(new RegExp(r"Content-Type\x3A[^\r\n]{6,}"));
-  res.add(new RegExp(r"Content-Type\x3A[^\r\n]{6,}z"));
-  res.add(new RegExp(r"Content-Type\x3A[^a]{6,}"));
-  res.add(new RegExp(r"Content-Type\x3A[^a]{6,}z"));
-  res.add(new RegExp(r"^abc", multiLine: true));
-  res.add(new RegExp(r"abc$", multiLine: true));
-  res.add(new RegExp(r"^abc", multiLine: true));
-  res.add(new RegExp(r"^abc", multiLine: true));
-  res.add(new RegExp(r"^abc", multiLine: true));
-  res.add(new RegExp(r".*"));
-  res.add(new RegExp(r"\w+(.)(.)?def"));
-  res.add(new RegExp(r"^\w+=.*(\\\n.*)*"));
-  res.add(new RegExp(r"^(a()*)*"));
-  res.add(new RegExp(r"^(?:a(?:(?:))*)*"));
-  res.add(new RegExp(r"^(a()+)+"));
-  res.add(new RegExp(r"^(?:a(?:(?:))+)+"));
-  res.add(new RegExp(r"(a|)*\d"));
-  res.add(new RegExp(r"(?:a|)*\d"));
-  res.add(new RegExp(r"^a.b"));
-  res.add(new RegExp(r"^abc.", multiLine: true));
-  res.add(new RegExp(r"abc.$", multiLine: true));
-  res.add(new RegExp(r"^a\Rb", caseSensitive: false));
-  res.add(new RegExp(r"^a\R*b", caseSensitive: false));
-  res.add(new RegExp(r"^a\R+b", caseSensitive: false));
-  res.add(new RegExp(r"^a\R{1,3}b", caseSensitive: false));
-  res.add(new RegExp(r"^a[\R]b", caseSensitive: false));
-  res.add(new RegExp(r".+foo"));
-  res.add(new RegExp(r".+foo"));
-  res.add(new RegExp(r".+foo"));
-  res.add(new RegExp(r".+foo"));
-  res.add(new RegExp(r"^$", multiLine: true));
-  res.add(new RegExp(r"^X", multiLine: true));
-  res.add(new RegExp(r"\H\h\V\v"));
-  res.add(new RegExp(r"\H*\h+\V?\v{3,4}"));
-  res.add(new RegExp(r"\H{3,4}"));
-  res.add(new RegExp(r".\h{3,4}."));
-  res.add(new RegExp(r"\h*X\h?\H+Y\H?Z"));
-  res.add(new RegExp(r"\v*X\v?Y\v+Z\V*\x0a\V+\x0b\V{2,3}\x0c"));
-  res.add(new RegExp(r".+A"));
-  res.add(new RegExp(r"\nA"));
-  res.add(new RegExp(r"[\r\n]A"));
-  res.add(new RegExp(r"(\r|\n)A"));
-  res.add(new RegExp(r"a\Rb", caseSensitive: false));
-  res.add(new RegExp(r"a\Rb", caseSensitive: false));
-  res.add(new RegExp(r"a\R?b", caseSensitive: false));
-  res.add(new RegExp(r"a\R?b", caseSensitive: false));
-  res.add(new RegExp(r"a\R{2,4}b", caseSensitive: false));
-  res.add(new RegExp(r"a\R{2,4}b", caseSensitive: false));
-  res.add(new RegExp(r"a(?!)|\wbc"));
-  res.add(new RegExp(r"a[]b"));
-  res.add(new RegExp(r"a[]+b"));
-  res.add(new RegExp(r"a[^]b"));
-  res.add(new RegExp(r"a[^]+b"));
-  res.add(new RegExp(r" End of testinput7 "));
-  res.add(new RegExp(r"\bX"));
-  res.add(new RegExp(r"\BX"));
-  res.add(new RegExp(r"X\b"));
-  res.add(new RegExp(r"X\B"));
-  res.add(new RegExp(r"[^a]"));
-  res.add(new RegExp(r"abc"));
-  res.add(new RegExp(r"a.b"));
-  res.add(new RegExp(r"a(.{3})b"));
-  res.add(new RegExp(r"a(.*?)(.)"));
-  res.add(new RegExp(r"a(.*?)(.)"));
-  res.add(new RegExp(r"a(.*)(.)"));
-  res.add(new RegExp(r"a(.*)(.)"));
-  res.add(new RegExp(r"a(.)(.)"));
-  res.add(new RegExp(r"a(.)(.)"));
-  res.add(new RegExp(r"a(.?)(.)"));
-  res.add(new RegExp(r"a(.?)(.)"));
-  res.add(new RegExp(r"a(.??)(.)"));
-  res.add(new RegExp(r"a(.??)(.)"));
-  res.add(new RegExp(r"a(.{3})b"));
-  res.add(new RegExp(r"a(.{3,})b"));
-  res.add(new RegExp(r"a(.{3,}?)b"));
-  res.add(new RegExp(r"a(.{3,5})b"));
-  res.add(new RegExp(r"a(.{3,5}?)b"));
-  res.add(new RegExp(r"[^a]+"));
-  res.add(new RegExp(r"^[^a]{2}"));
-  res.add(new RegExp(r"^[^a]{2,}"));
-  res.add(new RegExp(r"^[^a]{2,}?"));
-  res.add(new RegExp(r"[^a]+", caseSensitive: false));
-  res.add(new RegExp(r"^[^a]{2}", caseSensitive: false));
-  res.add(new RegExp(r"^[^a]{2,}", caseSensitive: false));
-  res.add(new RegExp(r"^[^a]{2,}?", caseSensitive: false));
-  res.add(new RegExp(r"\D*"));
-  res.add(new RegExp(r"\D*"));
-  res.add(new RegExp(r"\D"));
-  res.add(new RegExp(r">\S"));
-  res.add(new RegExp(r"\d"));
-  res.add(new RegExp(r"\s"));
-  res.add(new RegExp(r"\D+"));
-  res.add(new RegExp(r"\D{2,3}"));
-  res.add(new RegExp(r"\D{2,3}?"));
-  res.add(new RegExp(r"\d+"));
-  res.add(new RegExp(r"\d{2,3}"));
-  res.add(new RegExp(r"\d{2,3}?"));
-  res.add(new RegExp(r"\S+"));
-  res.add(new RegExp(r"\S{2,3}"));
-  res.add(new RegExp(r"\S{2,3}?"));
-  res.add(new RegExp(r">\s+<"));
-  res.add(new RegExp(r">\s{2,3}<"));
-  res.add(new RegExp(r">\s{2,3}?<"));
-  res.add(new RegExp(r"\w+"));
-  res.add(new RegExp(r"\w{2,3}"));
-  res.add(new RegExp(r"\w{2,3}?"));
-  res.add(new RegExp(r"\W+"));
-  res.add(new RegExp(r"\W{2,3}"));
-  res.add(new RegExp(r"\W{2,3}?"));
-  res.add(new RegExp(r"[\xFF]"));
-  res.add(new RegExp(r"[\xff]"));
-  res.add(new RegExp(r"[^\xFF]"));
-  res.add(new RegExp(r"[^\xff]"));
-  res.add(new RegExp(r"^[ac]*b"));
-  res.add(new RegExp(r"^[^x]*b", caseSensitive: false));
-  res.add(new RegExp(r"^[^x]*b"));
-  res.add(new RegExp(r"^\d*b"));
-  res.add(new RegExp(r"(|a)"));
-  res.add(new RegExp(r"^abc.", multiLine: true));
-  res.add(new RegExp(r"abc.$", multiLine: true));
-  res.add(new RegExp(r"^a\Rb", caseSensitive: false));
-  res.add(new RegExp(r"^a\R*b", caseSensitive: false));
-  res.add(new RegExp(r"^a\R+b", caseSensitive: false));
-  res.add(new RegExp(r"^a\R{1,3}b", caseSensitive: false));
-  res.add(new RegExp(r"\h+\V?\v{3,4}"));
-  res.add(new RegExp(r"\V?\v{3,4}"));
-  res.add(new RegExp(r"\h+\V?\v{3,4}"));
-  res.add(new RegExp(r"\V?\v{3,4}"));
-  res.add(new RegExp(r"\H\h\V\v"));
-  res.add(new RegExp(r"\H*\h+\V?\v{3,4}"));
-  res.add(new RegExp(r"\H\h\V\v"));
-  res.add(new RegExp(r"\H*\h+\V?\v{3,4}"));
-  res.add(new RegExp(r"a\Rb", caseSensitive: false));
-  res.add(new RegExp(r"a\Rb", caseSensitive: false));
-  res.add(new RegExp(r"a\R?b", caseSensitive: false));
-  res.add(new RegExp(r"a\R?b", caseSensitive: false));
-  res.add(new RegExp(r"X"));
-  res.add(new RegExp(r" End of testinput 8 "));
-  res.add(new RegExp(r"\pL\P{Nd}"));
-  res.add(new RegExp(r"\X."));
-  res.add(new RegExp(r"\X\X"));
-  res.add(new RegExp(r"^\pL+"));
-  res.add(new RegExp(r"^\PL+"));
-  res.add(new RegExp(r"^\X+"));
-  res.add(new RegExp(r"\X?abc"));
-  res.add(new RegExp(r"^\X?abc"));
-  res.add(new RegExp(r"\X*abc"));
-  res.add(new RegExp(r"^\X*abc"));
-  res.add(new RegExp(r"^\pL?=."));
-  res.add(new RegExp(r"^\pL*=."));
-  res.add(new RegExp(r"^\X{2,3}X"));
-  res.add(new RegExp(r"^\pC\pL\pM\pN\pP\pS\pZ<"));
-  res.add(new RegExp(r"^\PC"));
-  res.add(new RegExp(r"^\PL"));
-  res.add(new RegExp(r"^\PM"));
-  res.add(new RegExp(r"^\PN"));
-  res.add(new RegExp(r"^\PP"));
-  res.add(new RegExp(r"^\PS"));
-  res.add(new RegExp(r"^\PZ"));
-  res.add(new RegExp(r"^\p{Cc}"));
-  res.add(new RegExp(r"^\p{Cf}"));
-  res.add(new RegExp(r"^\p{Cn}"));
-  res.add(new RegExp(r"^\p{Co}"));
-  res.add(new RegExp(r"^\p{Cs}"));
-  res.add(new RegExp(r"^\p{Ll}"));
-  res.add(new RegExp(r"^\p{Lm}"));
-  res.add(new RegExp(r"^\p{Lo}"));
-  res.add(new RegExp(r"^\p{Lt}"));
-  res.add(new RegExp(r"^\p{Lu}"));
-  res.add(new RegExp(r"^\p{Mc}"));
-  res.add(new RegExp(r"^\p{Me}"));
-  res.add(new RegExp(r"^\p{Mn}"));
-  res.add(new RegExp(r"^\p{Nl}"));
-  res.add(new RegExp(r"^\p{No}"));
-  res.add(new RegExp(r"^\p{Pc}"));
-  res.add(new RegExp(r"^\p{Pd}"));
-  res.add(new RegExp(r"^\p{Pe}"));
-  res.add(new RegExp(r"^\p{Pf}"));
-  res.add(new RegExp(r"^\p{Pi}"));
-  res.add(new RegExp(r"^\p{Po}"));
-  res.add(new RegExp(r"^\p{Ps}"));
-  res.add(new RegExp(r"^\p{Sk}"));
-  res.add(new RegExp(r"^\p{So}"));
-  res.add(new RegExp(r"^\p{Zl}"));
-  res.add(new RegExp(r"^\p{Zp}"));
-  res.add(new RegExp(r"^\p{Zs}"));
-  res.add(new RegExp(r"\p{Nd}{2,}(..)"));
-  res.add(new RegExp(r"\p{Nd}{2,}?(..)"));
-  res.add(new RegExp(r"\p{Nd}*(..)"));
-  res.add(new RegExp(r"\p{Nd}*?(..)"));
-  res.add(new RegExp(r"\p{Nd}{2}(..)"));
-  res.add(new RegExp(r"\p{Nd}{2,3}(..)"));
-  res.add(new RegExp(r"\p{Nd}{2,3}?(..)"));
-  res.add(new RegExp(r"\p{Nd}?(..)"));
-  res.add(new RegExp(r"\p{Nd}??(..)"));
-  res.add(new RegExp(r"\p{Lu}", caseSensitive: false));
-  res.add(new RegExp(r"\p{^Lu}", caseSensitive: false));
-  res.add(new RegExp(r"\P{Lu}", caseSensitive: false));
-  res.add(new RegExp(r"[\p{Nd}]"));
-  res.add(new RegExp(r"[\P{Nd}]+"));
-  res.add(new RegExp(r"\D+"));
-  res.add(new RegExp(r"[\D]+"));
-  res.add(new RegExp(r"[\P{Nd}]+"));
-  res.add(new RegExp(r"[\D\P{Nd}]+"));
-  res.add(new RegExp(r"\pL"));
-  res.add(new RegExp(r"\pL", caseSensitive: false));
-  res.add(new RegExp(r"\p{Lu}"));
-  res.add(new RegExp(r"\p{Lu}", caseSensitive: false));
-  res.add(new RegExp(r"\p{Ll}"));
-  res.add(new RegExp(r"\p{Ll}", caseSensitive: false));
-  res.add(new RegExp(r"^\X"));
-  res.add(new RegExp(r"^[\X]"));
-  res.add(new RegExp(r"^(\X*)C"));
-  res.add(new RegExp(r"^(\X*?)C"));
-  res.add(new RegExp(r"^(\X*)(.)"));
-  res.add(new RegExp(r"^(\X*?)(.)"));
-  res.add(new RegExp(r"^\X(.)"));
-  res.add(new RegExp(r"^\X{2,3}(.)"));
-  res.add(new RegExp(r"^\X{2,3}?(.)"));
-  res.add(new RegExp(r"^\pN{2,3}X"));
-  res.add(new RegExp(r"^[\p{Arabic}]"));
-  res.add(new RegExp(r"^[\P{Yi}]"));
-  res.add(new RegExp(r"^\p{Any}X"));
-  res.add(new RegExp(r"^\P{Any}X"));
-  res.add(new RegExp(r"^\p{Any}?X"));
-  res.add(new RegExp(r"^\P{Any}?X"));
-  res.add(new RegExp(r"^\p{Any}*X"));
-  res.add(new RegExp(r"^\P{Any}*X"));
-  res.add(new RegExp(r"^[\p{Any}]X"));
-  res.add(new RegExp(r"^[\P{Any}]X"));
-  res.add(new RegExp(r"^[\p{Any}]?X"));
-  res.add(new RegExp(r"^[\P{Any}]?X"));
-  res.add(new RegExp(r"^[\p{Any}]+X"));
-  res.add(new RegExp(r"^[\P{Any}]+X"));
-  res.add(new RegExp(r"^[\p{Any}]*X"));
-  res.add(new RegExp(r"^[\P{Any}]*X"));
-  res.add(new RegExp(r"^\p{Any}{3,5}?"));
-  res.add(new RegExp(r"^\p{Any}{3,5}"));
-  res.add(new RegExp(r"^\P{Any}{3,5}?"));
-  res.add(new RegExp(r"^\p{L&}X"));
-  res.add(new RegExp(r"^[\p{L&}]X"));
-  res.add(new RegExp(r"^[\p{L&}]+X"));
-  res.add(new RegExp(r"^[\p{L&}]+?X"));
-  res.add(new RegExp(r"^\P{L&}X"));
-  res.add(new RegExp(r"^[\P{L&}]X"));
-  res.add(new RegExp(r"Check property support in non-UTF-8 mode"));
-  res.add(new RegExp(r"\p{L}{4}"));
-  res.add(new RegExp(
-      r"\p{Carian}\p{Cham}\p{Kayah_Li}\p{Lepcha}\p{Lycian}\p{Lydian}\p{Ol_Chiki}\p{Rejang}\p{Saurashtra}\p{Sundanese}\p{Vai}"));
-  res.add(new RegExp(r" End "));
-  res.add(new RegExp(r"^[[:alnum:]]", multiLine: true));
-  res.add(new RegExp(r"a", multiLine: true, caseSensitive: false));
-  res.add(new RegExp(r"abcde", multiLine: true));
-  res.add(new RegExp(r"\x80", multiLine: true));
-  res.add(new RegExp(r"\xff", multiLine: true));
-  res.add(new RegExp(r"[\p{L}]", multiLine: true));
-  res.add(new RegExp(r"[\p{^L}]", multiLine: true));
-  res.add(new RegExp(r"[\P{L}]", multiLine: true));
-  res.add(new RegExp(r"[\P{^L}]", multiLine: true));
-  res.add(new RegExp(r"[\p{Nd}]", multiLine: true));
-  res.add(new RegExp(r"[a]", multiLine: true));
-  res.add(new RegExp(r"[a]", multiLine: true));
-  res.add(new RegExp(r"[\xaa]", multiLine: true));
-  res.add(new RegExp(r"[\xaa]", multiLine: true));
-  res.add(new RegExp(r"[^a]", multiLine: true));
-  res.add(new RegExp(r"[^a]", multiLine: true));
-  res.add(new RegExp(r"[^\xaa]", multiLine: true));
-  res.add(new RegExp(r"[^\xaa]", multiLine: true));
-  res.add(new RegExp(r" End of testinput10 "));
-  assertToStringEquals("abc", res[1].firstMatch("abc"), 0);
-  assertToStringEquals("abc", res[1].firstMatch("defabc"), 1);
-  assertToStringEquals("abc", res[1].firstMatch("Aabc"), 2);
-  assertNull(res[1].firstMatch("*** Failers"), 3);
-  assertToStringEquals("abc", res[1].firstMatch("Adefabc"), 4);
-  assertToStringEquals("ABC", res[1].firstMatch("ABC"), 5);
-  assertToStringEquals("abc", res[2].firstMatch("abc"), 6);
-  assertNull(res[2].firstMatch("Aabc"), 7);
-  assertNull(res[2].firstMatch("*** Failers"), 8);
-  assertNull(res[2].firstMatch("defabc"), 9);
-  assertNull(res[2].firstMatch("Adefabc"), 10);
-  assertToStringEquals("abc", res[7].firstMatch("abc"), 11);
-  assertNull(res[7].firstMatch("*** Failers"), 12);
-  assertNull(res[7].firstMatch("def\nabc"), 13);
-  assertThrows(() => new RegExp(r"x{5,4}"));
-  assertThrows(() => new RegExp(r"[abcd"));
-  assertThrows(() => new RegExp(r"[z-a]"));
-  assertThrows(() => new RegExp(r"^*"));
-  assertThrows(() => new RegExp(r"(abc"));
-  assertThrows(() => new RegExp(r"(?# abc"));
-  assertToStringEquals(
-      "cat", res[11].firstMatch("this sentence eventually mentions a cat"), 20);
-  assertToStringEquals(
-      "elephant",
-      res[11].firstMatch(
-          "this sentences rambles on and on for a while and then reaches elephant"),
-      21);
-  assertToStringEquals(
-      "cat", res[12].firstMatch("this sentence eventually mentions a cat"), 22);
-  assertToStringEquals(
-      "elephant",
-      res[12].firstMatch(
-          "this sentences rambles on and on for a while and then reaches elephant"),
-      23);
-  assertToStringEquals("CAT",
-      res[13].firstMatch("this sentence eventually mentions a CAT cat"), 24);
-  assertToStringEquals(
-      "elephant",
-      res[13].firstMatch(
-          "this sentences rambles on and on for a while to elephant ElePhant"),
-      25);
-  assertThrows(() => new RegExp(r"{4,5}abc"));
-  assertToStringEquals("abcb,a,b,c", res[18].firstMatch("abcb"), 27);
-  assertToStringEquals("abcb,a,b,c", res[18].firstMatch("O0abcb"), 28);
-  assertToStringEquals("abcb,a,b,c", res[18].firstMatch("O3abcb"), 29);
-  assertToStringEquals("abcb,a,b,c", res[18].firstMatch("O6abcb"), 30);
-  assertToStringEquals("abcb,a,b,c", res[18].firstMatch("O9abcb"), 31);
-  assertToStringEquals("abcb,a,b,c", res[18].firstMatch("O12abcb"), 32);
-  assertToStringEquals("abc,a,,", res[19].firstMatch("abc"), 33);
-  assertToStringEquals("abc,a,,", res[19].firstMatch("O0abc"), 34);
-  assertToStringEquals("abc,a,,", res[19].firstMatch("O3abc"), 35);
-  assertToStringEquals("abc,a,,", res[19].firstMatch("O6abc"), 36);
-  assertToStringEquals("aba,,a,b", res[19].firstMatch("aba"), 37);
-  assertToStringEquals("aba,,a,b", res[19].firstMatch("O0aba"), 38);
-  assertToStringEquals("aba,,a,b", res[19].firstMatch("O3aba"), 39);
-  assertToStringEquals("aba,,a,b", res[19].firstMatch("O6aba"), 40);
-  assertToStringEquals("aba,,a,b", res[19].firstMatch("O9aba"), 41);
-  assertToStringEquals("aba,,a,b", res[19].firstMatch("O12aba"), 42);
-  assertToStringEquals("abc", res[20].firstMatch("abc"), 43);
-  assertNull(res[20].firstMatch("*** Failers"), 44);
-  assertNull(res[20].firstMatch("abc\n"), 45);
-  assertNull(res[20].firstMatch("abc\ndef"), 46);
-  assertToStringEquals(
-      "the quick brown fox", res[22].firstMatch("the quick brown fox"), 47);
-  assertToStringEquals("the quick brown fox",
-      res[22].firstMatch("this is a line with the quick brown fox"), 48);
-  assertToStringEquals("abc", res[23].firstMatch("abcdef"), 49);
-  assertToStringEquals("abc", res[23].firstMatch("abcdefB"), 50);
-  assertToStringEquals("defabc,abc,abc,", res[24].firstMatch("defabc"), 51);
-  assertToStringEquals("Zdefabc,abc,abc,", res[24].firstMatch("Zdefabc"), 52);
-  assertToStringEquals("abc", res[25].firstMatch("abc"), 53);
-  assertNull(res[25].firstMatch("*** Failers"), 54);
-  assertToStringEquals("abc", res[26].firstMatch("abcdef"), 55);
-  assertToStringEquals("abc", res[26].firstMatch("abcdefB"), 56);
-  assertToStringEquals("defabc,abc,abc,", res[27].firstMatch("defabc"), 57);
-  assertToStringEquals("Zdefabc,abc,abc,", res[27].firstMatch("Zdefabc"), 58);
-  assertToStringEquals(
-      "the quick brown fox", res[28].firstMatch("the quick brown fox"), 59);
-  assertNull(res[28].firstMatch("*** Failers"), 60);
-  assertToStringEquals(
-      "The Quick Brown Fox", res[28].firstMatch("The Quick Brown Fox"), 61);
-  assertToStringEquals(
-      "the quick brown fox", res[29].firstMatch("the quick brown fox"), 62);
-  assertToStringEquals(
-      "The Quick Brown Fox", res[29].firstMatch("The Quick Brown Fox"), 63);
-  assertNull(res[30].firstMatch("*** Failers"), 64);
-  assertNull(res[30].firstMatch("abc\ndef"), 65);
-  assertToStringEquals("abc", res[31].firstMatch("abc"), 66);
-  assertNull(res[31].firstMatch("abc\n"), 67);
-  assertToStringEquals("abc,abc", res[33].firstMatch("abc"), 68);
-  assertThrows(() => new RegExp(r")"));
-  assertToStringEquals("-pr", res[35].firstMatch("co-processors, and for"), 70);
-  assertToStringEquals(
-      "<def>ghi<klm>", res[36].firstMatch("abc<def>ghi<klm>nop"), 71);
-  assertToStringEquals("<def>", res[37].firstMatch("abc<def>ghi<klm>nop"), 72);
-  assertToStringEquals("<def>", res[37].firstMatch("abc<def>ghi<klm>nop"), 73);
-  assertNull(res[37].firstMatch("abc========def"), 74);
-  assertNull(res[37].firstMatch("foo"), 75);
-  assertNull(res[37].firstMatch("catfoo"), 76);
-  assertNull(res[37].firstMatch("*** Failers"), 77);
-  assertNull(res[37].firstMatch("the barfoo"), 78);
-  assertNull(res[37].firstMatch("and cattlefoo"), 79);
-  assertToStringEquals("a", res[40].firstMatch("a"), 80);
-  assertNull(res[40].firstMatch("a\n"), 81);
-  assertNull(res[40].firstMatch("*** Failers"), 82);
-  assertToStringEquals("a", res[40].firstMatch("Za"), 83);
-  assertNull(res[40].firstMatch("Za\n"), 84);
-  assertToStringEquals("a", res[41].firstMatch("a"), 85);
-  assertToStringEquals("a", res[41].firstMatch("a\n"), 86);
-  assertToStringEquals("a", res[41].firstMatch("Za\n"), 87);
-  assertNull(res[41].firstMatch("*** Failers"), 88);
-  assertToStringEquals("a", res[41].firstMatch("Za"), 89);
-  assertToStringEquals("b", res[44].firstMatch("foo\nbarbar"), 90);
-  assertToStringEquals("a", res[44].firstMatch("***Failers"), 91);
-  assertToStringEquals("b", res[44].firstMatch("rhubarb"), 92);
-  assertToStringEquals("b", res[44].firstMatch("barbell"), 93);
-  assertToStringEquals("a", res[44].firstMatch("abc\nbarton"), 94);
-  assertToStringEquals("b", res[44].firstMatch("foo\nbarbar"), 95);
-  assertToStringEquals("a", res[44].firstMatch("***Failers"), 96);
-  assertToStringEquals("b", res[44].firstMatch("rhubarb"), 97);
-  assertToStringEquals("b", res[44].firstMatch("barbell"), 98);
-  assertToStringEquals("a", res[44].firstMatch("abc\nbarton"), 99);
-  assertToStringEquals("a", res[44].firstMatch("abc"), 100);
-  assertToStringEquals("a", res[44].firstMatch("def\nabc"), 101);
-  assertToStringEquals("a", res[44].firstMatch("*** Failers"), 102);
-  assertToStringEquals("a", res[44].firstMatch("defabc"), 103);
-  assertNull(res[45].firstMatch("the bullock-cart"), 104);
-  assertNull(res[45].firstMatch("a donkey-cart race"), 105);
-  assertNull(res[45].firstMatch("*** Failers"), 106);
-  assertNull(res[45].firstMatch("cart"), 107);
-  assertNull(res[45].firstMatch("horse-and-cart"), 108);
-  assertNull(res[45].firstMatch("alphabetabcd"), 109);
-  assertNull(res[45].firstMatch("endingxyz"), 110);
-  assertNull(res[45].firstMatch("abxyZZ"), 111);
-  assertNull(res[45].firstMatch("abXyZZ"), 112);
-  assertNull(res[45].firstMatch("ZZZ"), 113);
-  assertNull(res[45].firstMatch("zZZ"), 114);
-  assertNull(res[45].firstMatch("bZZ"), 115);
-  assertNull(res[45].firstMatch("BZZ"), 116);
-  assertNull(res[45].firstMatch("*** Failers"), 117);
-  assertNull(res[45].firstMatch("ZZ"), 118);
-  assertNull(res[45].firstMatch("abXYZZ"), 119);
-  assertNull(res[45].firstMatch("zzz"), 120);
-  assertNull(res[45].firstMatch("bzz"), 121);
-  assertNull(res[45].firstMatch("bar"), 122);
-  assertNull(res[45].firstMatch("foobbar"), 123);
-  assertNull(res[45].firstMatch("*** Failers"), 124);
-  assertNull(res[45].firstMatch("fooabar"), 125);
-  assertNull(res[46].firstMatch("*** Failers"), 126);
-  assertNull(res[46].firstMatch("a"), 127);
-  assertNull(res[48].firstMatch("aaaaaa"), 128);
-  assertThrows(() => new RegExp(r"a[b-a]"), 129);
-  assertThrows(() => new RegExp(r"a["), 130);
-  assertThrows(() => new RegExp(r"*a"), 131);
-  assertThrows(() => new RegExp(r"abc)"), 132);
-  assertThrows(() => new RegExp(r"(abc"), 133);
-  assertThrows(() => new RegExp(r"a**"), 134);
-  assertThrows(() => new RegExp(r")("), 135);
-  assertThrows(() => new RegExp(r"a[b-a]"), 136);
-  assertThrows(() => new RegExp(r"a["), 137);
-  assertThrows(() => new RegExp(r"*a"), 138);
-  assertThrows(() => new RegExp(r"abc)"), 139);
-  assertThrows(() => new RegExp(r"(abc"), 140);
-  assertThrows(() => new RegExp(r"a**"), 141);
-  assertThrows(() => new RegExp(r")("), 142);
-  assertThrows(() => new RegExp(r":(?:"), 143);
-  assertThrows(() => new RegExp(r"a(?{)b"), 144);
-  assertThrows(() => new RegExp(r"a(?{{})b"), 145);
-  assertThrows(() => new RegExp(r"a(?{}})b"), 146);
-  assertThrows(() => new RegExp(r'a(?{\"{\"})b'), 147);
-  assertThrows(() => new RegExp(r'a(?{\"{\"}})b'), 148);
-  assertThrows(() => new RegExp(r"[a[:xyz:"), 149);
-  assertThrows(() => new RegExp(r"a{37,17}"), 150);
-  assertToStringEquals("abcd,a,d", res[58].firstMatch("abcd"), 151);
-  assertToStringEquals("abcd,a,d", res[58].firstMatch("abcdC2"), 152);
-  assertToStringEquals("abcd,a,d", res[58].firstMatch("abcdC5"), 153);
-  assertToStringEquals("abcdefghijklmnopqrst,abcdefghijklmnopqrst",
-      res[59].firstMatch("abcdefghijklmnopqrstuvwxyz"), 154);
-  assertToStringEquals("abcdefghijklmnopqrst,abcdefghijklmnopqrst",
-      res[59].firstMatch("abcdefghijklmnopqrstuvwxyzC1"), 155);
-  assertToStringEquals("abcdefghijklmnopqrst,abcdefghijklmnopqrst",
-      res[59].firstMatch("abcdefghijklmnopqrstuvwxyzG1"), 156);
-  assertToStringEquals("abcdefghijklmno,abcdefghijklmno",
-      res[60].firstMatch("abcdefghijklmnopqrstuvwxyz"), 157);
-  assertToStringEquals("abcdefghijklmno,abcdefghijklmno",
-      res[60].firstMatch("abcdefghijklmnopqrstuvwxyzC1G1"), 158);
-  assertToStringEquals("abcdefghijklmnop,abcdefghijklmnop",
-      res[61].firstMatch("abcdefghijklmnopqrstuvwxyz"), 159);
-  assertToStringEquals("abcdefghijklmnop,abcdefghijklmnop",
-      res[61].firstMatch("abcdefghijklmnopqrstuvwxyzC1G1L"), 160);
-  assertToStringEquals("adef,a,,f", res[62].firstMatch("adefG1G2G3G4L"), 161);
-  assertToStringEquals(
-      "bcdef,bc,bc,f", res[62].firstMatch("bcdefG1G2G3G4L"), 162);
-  assertToStringEquals("adef,a,,f", res[62].firstMatch("adefghijkC0"), 163);
-  assertToStringEquals("abc\x00def", res[63].firstMatch("abc\x00defLC0"), 164);
-  assertToStringEquals("iss", res[69].firstMatch("Mississippi"), 165);
-  assertToStringEquals("iss", res[70].firstMatch("Mississippi"), 166);
-  assertToStringEquals("iss", res[71].firstMatch("Mississippi"), 167);
-  assertToStringEquals("iss", res[72].firstMatch("Mississippi"), 168);
-  assertToStringEquals("iss", res[73].firstMatch("Mississippi"), 169);
-  assertNull(res[73].firstMatch("*** Failers"), 170);
-  assertToStringEquals("iss", res[73].firstMatch("MississippiA"), 171);
-  assertToStringEquals("iss", res[73].firstMatch("Mississippi"), 172);
-  assertToStringEquals("iss", res[74].firstMatch("ississippi"), 174);
-  assertToStringEquals("abciss", res[75].firstMatch("abciss\nxyzisspqr"), 175);
-  assertToStringEquals("Mis", res[76].firstMatch("Mississippi"), 176);
-  assertToStringEquals("Mis", res[77].firstMatch("Mississippi"), 180);
-  assertToStringEquals("ab\n", res[78].firstMatch("ab\nab\ncd"), 181);
-  assertToStringEquals("ab\n", res[79].firstMatch("ab\nab\ncd"), 182);
-  assertToStringEquals("a", res[115].firstMatch("a"), 183);
-  assertToStringEquals("b", res[115].firstMatch("b"), 184);
-  assertToStringEquals("ab", res[115].firstMatch("ab"), 185);
-  assertToStringEquals("", res[115].firstMatch("\\"), 186);
-  assertToStringEquals("", res[115].firstMatch("*** Failers"), 187);
-  assertToStringEquals("", res[115].firstMatch("N"), 188);
-  assertToStringEquals("", res[116].firstMatch("abcd"), 189);
-  assertToStringEquals("", res[116].firstMatch("-abc"), 190);
-  assertToStringEquals("", res[116].firstMatch("Nab-c"), 191);
-  assertToStringEquals("", res[116].firstMatch("*** Failers"), 192);
-  assertToStringEquals("", res[116].firstMatch("Nabc"), 193);
-  assertToStringEquals(
-      "aaaabbbbzz,bbbb,z,z", res[117].firstMatch("aaaabbbbzzzz"), 194);
-  assertToStringEquals(
-      "aaaabbbbzz,bbbb,z,z", res[117].firstMatch("aaaabbbbzzzzO0"), 195);
-  assertToStringEquals(
-      "aaaabbbbzz,bbbb,z,z", res[117].firstMatch("aaaabbbbzzzzO1"), 196);
-  assertToStringEquals(
-      "aaaabbbbzz,bbbb,z,z", res[117].firstMatch("aaaabbbbzzzzO2"), 197);
-  assertToStringEquals(
-      "aaaabbbbzz,bbbb,z,z", res[117].firstMatch("aaaabbbbzzzzO3"), 198);
-  assertToStringEquals(
-      "aaaabbbbzz,bbbb,z,z", res[117].firstMatch("aaaabbbbzzzzO4"), 199);
-  assertToStringEquals(
-      "aaaabbbbzz,bbbb,z,z", res[117].firstMatch("aaaabbbbzzzzO5"), 200);
-  assertToStringEquals("(abcd", res[118].firstMatch("(abcd)"), 201);
-  assertToStringEquals("(abcd", res[118].firstMatch("(abcd)xyz"), 202);
-  assertNull(res[118].firstMatch("xyz(abcd)"), 203);
-  assertNull(res[118].firstMatch("(ab(xy)cd)pqr"), 204);
-  assertNull(res[118].firstMatch("(ab(xycd)pqr"), 205);
-  assertNull(res[118].firstMatch("() abc ()"), 206);
-  assertNull(res[118].firstMatch("12(abcde(fsh)xyz(foo(bar))lmno)89"), 207);
-  assertNull(res[118].firstMatch("*** Failers"), 208);
-  assertToStringEquals("abcd", res[118].firstMatch("abcd"), 209);
-  assertToStringEquals("abcd", res[118].firstMatch("abcd)"), 210);
-  assertToStringEquals("(abcd", res[118].firstMatch("(abcd"), 211);
-  assertNull(res[118].firstMatch("(ab(xy)cd)pqr"), 212);
-  assertNull(res[118].firstMatch("1(abcd)(x(y)z)pqr"), 213);
-  assertToStringEquals("(abcd", res[118].firstMatch("(abcd)"), 214);
-  assertNull(res[118].firstMatch("(ab(xy)cd)"), 215);
-  assertNull(res[118].firstMatch("(a(b(c)d)e)"), 216);
-  assertNull(res[118].firstMatch("((ab))"), 217);
-  assertNull(res[118].firstMatch("*** Failers"), 218);
-  assertNull(res[118].firstMatch("()"), 219);
-  assertNull(res[118].firstMatch("()"), 220);
-  assertNull(res[118].firstMatch("12(abcde(fsh)xyz(foo(bar))lmno)89"), 221);
-  assertNull(res[118].firstMatch("(ab(xy)cd)"), 222);
-  assertNull(res[118].firstMatch("(ab(xy)cd)"), 223);
-  assertNull(res[118].firstMatch("(ab(xy)cd)"), 224);
-  assertNull(res[118].firstMatch("(123ab(xy)cd)"), 225);
-  assertNull(res[118].firstMatch("(ab(xy)cd)"), 226);
-  assertNull(res[118].firstMatch("(123ab(xy)cd)"), 227);
-  assertNull(res[118].firstMatch("(ab(xy)cd)"), 228);
-  assertToStringEquals(
-      "(abcd", res[118].firstMatch("(abcd(xyz<p>qrs)123)"), 229);
-  assertNull(res[118].firstMatch("(ab(cd)ef)"), 230);
-  assertNull(res[118].firstMatch("(ab(cd(ef)gh)ij)"), 231);
-  assertNull(res[146].firstMatch("A"), 232);
-  assertNull(res[146].firstMatch("a"), 233);
-  assertNull(res[147].firstMatch("A"), 234);
-  assertNull(res[147].firstMatch("a"), 235);
-  assertNull(res[147].firstMatch("ab"), 236);
-  assertNull(res[147].firstMatch("aB"), 237);
-  assertNull(res[147].firstMatch("*** Failers"), 238);
-  assertNull(res[147].firstMatch("Ab"), 239);
-  assertNull(res[147].firstMatch("AB"), 240);
-  assertThrows(() => new RegExp(r"[\200-\110]"), 241);
-  // TODO(jgruber): Reintegrate stack-overflow2_test.dart once it passes.
-  assertToStringEquals("mainmain,main,", res[151].firstMatch("mainmain"), 243);
-  assertToStringEquals(
-      "mainOmain,main,", res[151].firstMatch("mainOmain"), 244);
-  assertToStringEquals("aba,a,", res[153].firstMatch("aba"), 245);
-  assertToStringEquals("aabbaa,aa,", res[154].firstMatch("aabbaa"), 246);
-  assertToStringEquals("aabbaa,aa,", res[155].firstMatch("aabbaa"), 247);
-  assertToStringEquals("aabbaa,aa,", res[156].firstMatch("aabbaa"), 248);
-  assertToStringEquals("aabbaa,", res[157].firstMatch("aabbaa"), 249);
-  assertToStringEquals("aabbaa,aa,,", res[158].firstMatch("aabbaa"), 250);
-  assertToStringEquals("aabbaa,,", res[159].firstMatch("aabbaa"), 251);
-  assertToStringEquals("aabbaa,", res[160].firstMatch("aabbaa"), 252);
-  assertToStringEquals("aabbbaa,", res[161].firstMatch("aabbbaa"), 253);
-  assertToStringEquals("aabbbaa,", res[162].firstMatch("aabbbaa"), 254);
-  assertToStringEquals("aabbaa,", res[163].firstMatch("aabbaa"), 255);
-  assertToStringEquals("aabbbaa,", res[164].firstMatch("aabbbaa"), 256);
-  assertToStringEquals("aabbbaa,aa,,", res[165].firstMatch("aabbbaa"), 257);
-  assertToStringEquals("aabbbbaa,aa,,", res[166].firstMatch("aabbbbaa"), 258);
-  // Dart does not have RegExp literals and thus no translatation of the below.
-  // assertThrows("var re = //;", 259);
-  assertToStringEquals("a", res[169].firstMatch("ab"), 260);
-  assertToStringEquals("a", res[169].firstMatch("aB"), 261);
-  assertToStringEquals("*", res[169].firstMatch("*** Failers"), 262);
-  assertToStringEquals("A", res[169].firstMatch("AB"), 263);
-  assertToStringEquals("a", res[169].firstMatch("ab"), 264);
-  assertToStringEquals("a", res[169].firstMatch("aB"), 265);
-  assertToStringEquals("*", res[169].firstMatch("*** Failers"), 266);
-  assertToStringEquals("A", res[169].firstMatch("AB"), 267);
-  assertNull(res[172].firstMatch("\\"), 268);
-  assertNull(res[177].firstMatch("*** Failers"), 269);
-  assertNull(res[177].firstMatch("xxxxx"), 270);
-  assertNull(
-      res[177].firstMatch(
-          "now is the time for all good men to come to the aid of the party"),
-      271);
-  assertNull(res[177].firstMatch("*** Failers"), 272);
-  assertNull(
-      res[177].firstMatch("this is not a line with only words and spaces!"),
-      273);
-  assertNull(res[177].firstMatch("12345a"), 274);
-  assertNull(res[177].firstMatch("*** Failers"), 275);
-  assertNull(res[177].firstMatch("12345+"), 276);
-  assertNull(res[177].firstMatch("aaab"), 277);
-  assertNull(res[177].firstMatch("aaab"), 278);
-  assertNull(res[177].firstMatch("aaab"), 279);
-  assertNull(res[177].firstMatch("((abc(ade)ufh()()x"), 280);
-  assertNull(res[177].firstMatch("(abc)"), 281);
-  assertNull(res[177].firstMatch("(abc(def)xyz)"), 282);
-  assertNull(res[177].firstMatch("*** Failers"), 283);
-  assertNull(
-      res[177].firstMatch("((()aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"),
-      284);
-  assertNull(res[177].firstMatch("xaaaab"), 285);
-  assertNull(res[177].firstMatch("xaaaab"), 286);
-  assertThrows(() => new RegExp(r"["), 287);
-  assertThrows(() => new RegExp(r"[a-"), 288);
-  assertNull(res[189].firstMatch("<>"), 289);
-  assertNull(res[189].firstMatch("<abcd>"), 290);
-  assertNull(res[189].firstMatch("<abc <123> hij>"), 291);
-  assertNull(res[189].firstMatch("<abc <def> hij>"), 292);
-  assertNull(res[189].firstMatch("<abc<>def>"), 293);
-  assertNull(res[189].firstMatch("<abc<>"), 294);
-  assertNull(res[189].firstMatch("*** Failers"), 295);
-  assertNull(res[189].firstMatch("<abc"), 296);
-  assertToStringEquals("bc123bc,bc,bc", res[195].firstMatch("abc123bc"), 297);
-  assertToStringEquals("abc", res[215].firstMatch("abcdef"), 298);
-  assertToStringEquals("abc", res[215].firstMatch("1234abcdef"), 299);
-  assertNull(res[215].firstMatch("*** Failers"), 300);
-  assertToStringEquals("abc", res[215].firstMatch("abcxyz"), 301);
-  assertToStringEquals("abc", res[215].firstMatch("abcxyzf"), 302);
-  assertToStringEquals("abc", res[215].firstMatch("123abcdef"), 303);
-  assertToStringEquals("abc", res[215].firstMatch("1234abcdef"), 304);
-  assertNull(res[215].firstMatch("*** Failers"), 305);
-  assertToStringEquals("abc", res[215].firstMatch("abcdef"), 306);
-  assertNull(res[215].firstMatch("*** Failers"), 307);
-  assertToStringEquals("abc", res[215].firstMatch("\x83x0abcdef"), 308);
-  assertToStringEquals("abc", res[215].firstMatch("123abcdef"), 309);
-  assertToStringEquals("abc", res[215].firstMatch("123abcdefC+"), 310);
-  assertToStringEquals("abc", res[215].firstMatch("123abcdefC-"), 311);
-  assertNull(res[215].firstMatch("*** Failers"), 312);
-  assertToStringEquals("abc", res[215].firstMatch("123abcdefC!1"), 313);
-  assertToStringEquals("abc", res[215].firstMatch("abcabcabc"), 314);
-  assertToStringEquals("abc", res[215].firstMatch("abcabcC!1!3"), 315);
-  assertNull(res[215].firstMatch("*** Failers"), 316);
-  assertToStringEquals("abc", res[215].firstMatch("abcabcabcC!1!3"), 317);
-  assertToStringEquals("C", res[215].firstMatch("123C+"), 318);
-  assertToStringEquals("C", res[215].firstMatch("123456C+"), 319);
-  assertToStringEquals("C", res[215].firstMatch("123456789C+"), 320);
-  assertToStringEquals("abc", res[215].firstMatch("xyzabcC+"), 321);
-  assertToStringEquals("abc", res[215].firstMatch("XxyzabcC+"), 322);
-  assertToStringEquals("abc", res[215].firstMatch("abcdefC+"), 323);
-  assertToStringEquals("abc", res[215].firstMatch("abcxyzC+"), 324);
-  assertToStringEquals("c", res[215].firstMatch("abbbbbcccC*1"), 325);
-  assertToStringEquals("c", res[215].firstMatch("abbbbbcccC*1"), 326);
-  assertNull(res[215].firstMatch("xab"), 327);
-  assertToStringEquals("c", res[215].firstMatch("xbc"), 328);
-  assertNull(res[215].firstMatch("xde"), 329);
-  assertNull(res[215].firstMatch("xxab"), 330);
-  assertNull(res[215].firstMatch("xxxab"), 331);
-  assertNull(res[215].firstMatch("*** Failers"), 332);
-  assertNull(res[215].firstMatch("xyab"), 333);
-  assertToStringEquals("abc", res[215].firstMatch("abc"), 334);
-  assertToStringEquals("c", res[215].firstMatch("a(b)c"), 335);
-  assertToStringEquals("c", res[215].firstMatch("a(b(c))d"), 336);
-  assertNull(res[215].firstMatch("*** Failers)"), 337);
-  assertToStringEquals("c", res[215].firstMatch("a(b(c)d"), 338);
-  assertNull(res[215].firstMatch("1221"), 339);
-  assertToStringEquals(
-      "c", res[215].firstMatch("Satan, oscillate my metallic sonatas!"), 340);
-  assertToStringEquals(
-      "c", res[215].firstMatch("A man, a plan, a canal: Panama!"), 341);
-  assertNull(res[215].firstMatch("Able was I ere I saw Elba."), 342);
-  assertNull(res[215].firstMatch("*** Failers"), 343);
-  assertToStringEquals("c", res[215].firstMatch("The quick brown fox"), 344);
-  assertNull(res[215].firstMatch("12"), 345);
-  assertNull(res[215].firstMatch("(((2+2)*-3)-7)"), 346);
-  assertNull(res[215].firstMatch("-12"), 347);
-  assertNull(res[215].firstMatch("*** Failers"), 348);
-  assertNull(res[215].firstMatch("((2+2)*-3)-7)"), 349);
-  assertNull(res[215].firstMatch("xyz"), 350);
-  assertNull(res[215].firstMatch("xxyzxyzz"), 351);
-  assertNull(res[215].firstMatch("*** Failers"), 352);
-  assertNull(res[215].firstMatch("xxyzz"), 353);
-  assertNull(res[215].firstMatch("xxyzxyzxyzz"), 354);
-  assertNull(res[215].firstMatch("<>"), 355);
-  assertToStringEquals("abc", res[215].firstMatch("<abcd>"), 356);
-  assertToStringEquals("abc", res[215].firstMatch("<abc <123> hij>"), 357);
-  assertToStringEquals("abc", res[215].firstMatch("<abc <def> hij>"), 358);
-  assertToStringEquals("abc", res[215].firstMatch("<abc<>def>"), 359);
-  assertToStringEquals("abc", res[215].firstMatch("<abc<>"), 360);
-  assertNull(res[215].firstMatch("*** Failers"), 361);
-  assertToStringEquals("abc", res[215].firstMatch("<abc"), 362);
-  assertToStringEquals("abc", res[215].firstMatch("abcdefabc"), 363);
-  assertNull(res[215].firstMatch("a=a"), 364);
-  assertNull(res[215].firstMatch("a=b"), 365);
-  assertToStringEquals("c", res[215].firstMatch("a=bc"), 366);
-  assertNull(res[215].firstMatch("a=a"), 367);
-  assertNull(res[215].firstMatch("a=b"), 368);
-  assertToStringEquals("c", res[215].firstMatch("a=bc"), 369);
-  assertNull(res[215].firstMatch("abde"), 370);
-  assertToStringEquals("c", res[215].firstMatch("acde"), 371);
-  assertNull(res[215].firstMatch("1221"), 372);
-  assertToStringEquals(
-      "c", res[215].firstMatch("Satan, oscillate my metallic sonatas!"), 373);
-  assertToStringEquals(
-      "c", res[215].firstMatch("A man, a plan, a canal: Panama!"), 374);
-  assertNull(res[215].firstMatch("Able was I ere I saw Elba."), 375);
-  assertNull(res[215].firstMatch("*** Failers"), 376);
-  assertToStringEquals("c", res[215].firstMatch("The quick brown fox"), 377);
-  assertNull(res[228].firstMatch("abcdefgh"), 378);
-  assertNull(res[228].firstMatch("abcdefghC1Gtwo"), 379);
-  assertNull(res[228].firstMatch("abcdefghConeCtwo"), 380);
-  assertNull(res[228].firstMatch("abcdefghCthree"), 381);
-  assertToStringEquals("zz,", res[228].firstMatch("zzaaCZ"), 382);
-  assertToStringEquals("zz,", res[228].firstMatch("zzaaCA"), 383);
-  assertNull(res[228].firstMatch("[10,20,30,5,5,4,4,2,43,23,4234]"), 384);
-  assertNull(res[228].firstMatch("*** Failers"), 385);
-  assertNull(res[228].firstMatch("[]"), 386);
-  assertNull(res[228].firstMatch("[10,20,30,5,5,4,4,2,43,23,4234]"), 387);
-  assertNull(res[228].firstMatch("[]"), 388);
-  assertToStringEquals(
-      " Baby Bjorn Active Carrier - With free SHIPPING!!, Baby Bjorn Active Carrier - With free SHIPPING!!,,",
-      res[229].firstMatch(" Baby Bjorn Active Carrier - With free SHIPPING!!"),
-      389);
-  assertToStringEquals(
-      " Baby Bjorn Active Carrier - With free SHIPPING!!, Baby Bjorn Active Carrier - With free SHIPPING!!,,",
-      res[230].firstMatch(" Baby Bjorn Active Carrier - With free SHIPPING!!"),
-      390);
-  assertNull(
-      res[238].firstMatch("Note: that { does NOT introduce a quantifier"), 391);
-  assertToStringEquals(
-      "aacaacaacaacaac123,aac", res[239].firstMatch("aacaacaacaacaac123"), 392);
-  assertNull(res[243].firstMatch("abP"), 393);
-  assertNull(res[243].firstMatch("abcP"), 394);
-  assertNull(res[243].firstMatch("abcdP"), 395);
-  assertToStringEquals("abcde", res[243].firstMatch("abcdeP"), 396);
-  assertNull(res[243].firstMatch("the quick brown abcP"), 397);
-  assertNull(res[243].firstMatch("** FailersP"), 398);
-  assertNull(res[243].firstMatch("the quick brown abxyz foxP"), 399);
-  assertNull(res[243].firstMatch("13/05/04P"), 400);
-  assertNull(res[243].firstMatch("13/5/2004P"), 401);
-  assertNull(res[243].firstMatch("02/05/09P"), 402);
-  assertNull(res[243].firstMatch("1P"), 403);
-  assertNull(res[243].firstMatch("1/2P"), 404);
-  assertNull(res[243].firstMatch("1/2/0P"), 405);
-  assertNull(res[243].firstMatch("1/2/04P"), 406);
-  assertNull(res[243].firstMatch("0P"), 407);
-  assertNull(res[243].firstMatch("02/P"), 408);
-  assertNull(res[243].firstMatch("02/0P"), 409);
-  assertNull(res[243].firstMatch("02/1P"), 410);
-  assertNull(res[243].firstMatch("** FailersP"), 411);
-  assertNull(res[243].firstMatch("P"), 412);
-  assertNull(res[243].firstMatch("123P"), 413);
-  assertNull(res[243].firstMatch("33/4/04P"), 414);
-  assertNull(res[243].firstMatch("3/13/04P"), 415);
-  assertNull(res[243].firstMatch("0/1/2003P"), 416);
-  assertNull(res[243].firstMatch("0/P"), 417);
-  assertNull(res[243].firstMatch("02/0/P"), 418);
-  assertNull(res[243].firstMatch("02/13P"), 419);
-  assertToStringEquals("123", res[248].firstMatch("123P"), 420);
-  assertNull(res[248].firstMatch("aP"), 421);
-  assertNull(res[248].firstMatch("bP"), 422);
-  assertNull(res[248].firstMatch("cP"), 423);
-  assertNull(res[248].firstMatch("c12P"), 424);
-  assertToStringEquals("c123", res[248].firstMatch("c123P"), 425);
-  assertNull(res[249].firstMatch("1P"), 426);
-  assertNull(res[249].firstMatch("123P"), 427);
-  assertToStringEquals("123X", res[249].firstMatch("123X"), 428);
-  assertNull(res[249].firstMatch("1234P"), 429);
-  assertToStringEquals("1234X", res[249].firstMatch("1234X"), 430);
-  assertNull(res[249].firstMatch("12345P"), 431);
-  assertToStringEquals("12345X", res[249].firstMatch("12345X"), 432);
-  assertNull(res[249].firstMatch("*** Failers"), 433);
-  assertNull(res[249].firstMatch("1X"), 434);
-  assertNull(res[249].firstMatch("123456P"), 435);
-  assertNull(res[249].firstMatch("abc"), 436);
-  assertNull(res[249].firstMatch("** Failers"), 437);
-  assertNull(res[249].firstMatch("bca"), 438);
-  assertNull(res[249].firstMatch("abc"), 439);
-  assertNull(res[249].firstMatch("** Failers"), 440);
-  assertNull(res[249].firstMatch("bca"), 441);
-  assertNull(res[249].firstMatch("abc"), 442);
-  assertNull(res[249].firstMatch("** Failers"), 443);
-  assertNull(res[249].firstMatch("def"), 444);
-  assertNull(res[249].firstMatch("abc"), 445);
-  assertNull(res[249].firstMatch("** Failers"), 446);
-  assertNull(res[249].firstMatch("def"), 447);
-  assertNull(
-      res[249].firstMatch(
-          "<!DOCTYPE seite SYSTEM \"http://www.lco.lineas.de/xmlCms.dtd\">\n<seite>\n<dokumenteninformation>\n<seitentitel>Partner der LCO</seitentitel>\n<sprache>de</sprache>\n<seitenbeschreibung>Partner der LINEAS Consulting\nGmbH</seitenbeschreibung>\n<schluesselworte>LINEAS Consulting GmbH Hamburg\nPartnerfirmen</schluesselworte>\n<revisit>30 days</revisit>\n<robots>index,follow</robots>\n<menueinformation>\n<aktiv>ja</aktiv>\n<menueposition>3</menueposition>\n<menuetext>Partner</menuetext>\n</menueinformation>\n<lastedited>\n<autor>LCO</autor>\n<firma>LINEAS Consulting</firma>\n<datum>15.10.2003</datum>\n</lastedited>\n</dokumenteninformation>\n<inhalt>\n\n<absatzueberschrift>Die Partnerfirmen der LINEAS Consulting\nGmbH</absatzueberschrift>\n\n<absatz><link ziel=\"http://www.ca.com/\" zielfenster=\"_blank\">\n<bild name=\"logo_ca.gif\" rahmen=\"no\"/></link> <link\nziel=\"http://www.ey.com/\" zielfenster=\"_blank\"><bild\nname=\"logo_euy.gif\" rahmen=\"no\"/></link>\n</absatz>\n\n<absatz><link ziel=\"http://www.cisco.de/\" zielfenster=\"_blank\">\n<bild name=\"logo_cisco.gif\" rahmen=\"ja\"/></link></absatz>\n\n<absatz><link ziel=\"http://www.atelion.de/\"\nzielfenster=\"_blank\"><bild\nname=\"logo_atelion.gif\" rahmen=\"no\"/></link>\n</absatz>\n\n<absatz><link ziel=\"http://www.line-information.de/\"\nzielfenster=\"_blank\">\n<bild name=\"logo_line_information.gif\" rahmen=\"no\"/></link>\n</absatz>\n\n<absatz><bild name=\"logo_aw.gif\" rahmen=\"no\"/></absatz>\n\n<absatz><link ziel=\"http://www.incognis.de/\"\nzielfenster=\"_blank\"><bild\nname=\"logo_incognis.gif\" rahmen=\"no\"/></link></absatz>\n\n<absatz><link ziel=\"http://www.addcraft.com/\"\nzielfenster=\"_blank\"><bild\nname=\"logo_addcraft.gif\" rahmen=\"no\"/></link></absatz>\n\n<absatz><link ziel=\"http://www.comendo.com/\"\nzielfenster=\"_blank\"><bild\nname=\"logo_comendo.gif\" rahmen=\"no\"/></link></absatz>\n\n</inhalt>\n</seite>"),
-      448);
-  assertToStringEquals(
-      "line\nbreak", res[251].firstMatch("this is a line\nbreak"), 449);
-  assertToStringEquals(
-      "line\nbreak",
-      res[251].firstMatch("line one\nthis is a line\nbreak in the second line"),
-      450);
-  assertToStringEquals(
-      "line\nbreak", res[252].firstMatch("this is a line\nbreak"), 451);
-  assertNull(res[252].firstMatch("** Failers"), 452);
-  assertToStringEquals(
-      "line\nbreak",
-      res[252].firstMatch("line one\nthis is a line\nbreak in the second line"),
-      453);
-  assertToStringEquals(
-      "line\nbreak", res[253].firstMatch("this is a line\nbreak"), 454);
-  assertNull(res[253].firstMatch("** Failers"), 455);
-  assertToStringEquals(
-      "line\nbreak",
-      res[253].firstMatch("line one\nthis is a line\nbreak in the second line"),
-      456);
-  assertToStringEquals("ab-cd", res[254].firstMatch("ab-cd"), 457);
-  assertToStringEquals("ab=cd", res[254].firstMatch("ab=cd"), 458);
-  assertNull(res[254].firstMatch("** Failers"), 459);
-  assertNull(res[254].firstMatch("ab\ncd"), 460);
-  assertToStringEquals("ab-cd", res[255].firstMatch("ab-cd"), 461);
-  assertToStringEquals("ab=cd", res[255].firstMatch("ab=cd"), 462);
-  assertNull(res[255].firstMatch("ab\ncd"), 463);
-  assertNull(res[255].firstMatch("AbCd"), 464);
-  assertNull(res[255].firstMatch("** Failers"), 465);
-  assertNull(res[255].firstMatch("abcd"), 466);
-  // We are compatible with JSC, and don't throw an exception in this case.
-  // assertThrows("var re = /(){2,4294967295}/;", 467);
-  assertNull(res[255].firstMatch("abcdefghijklAkB"), 468);
-  assertNull(res[255].firstMatch("abcdefghijklAkB"), 469);
-  assertNull(res[255].firstMatch("abcdefghijklAkB"), 470);
-  assertNull(
-      res[255].firstMatch(
-          "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"),
-      471);
-  assertNull(
-      res[255].firstMatch(
-          "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"),
-      472);
-  assertNull(res[255].firstMatch("(this(and)that"), 473);
-  assertNull(res[255].firstMatch("(this(and)that)"), 474);
-  assertNull(res[255].firstMatch("(this(and)that)stuff"), 475);
-  assertNull(res[255].firstMatch("(this(and)that"), 476);
-  assertNull(res[255].firstMatch("(this(and)that)"), 477);
-  assertNull(res[255].firstMatch("(this(and)that"), 478);
-  assertNull(res[255].firstMatch("(this(and)that)"), 479);
-  assertNull(res[255].firstMatch("(this(and)that"), 480);
-  assertNull(res[255].firstMatch("(this(and)that)"), 481);
-  assertNull(res[255].firstMatch("((this))"), 482);
-  assertNull(res[255].firstMatch("(this(and)that"), 483);
-  assertNull(res[255].firstMatch("(this(and)that)"), 484);
-  assertNull(res[255].firstMatch("(this)"), 485);
-  assertNull(res[255].firstMatch("((this))"), 486);
-  assertToStringEquals("abc,b", res[256].firstMatch("abc"), 487);
-  assertToStringEquals("abc,b", res[256].firstMatch("abc"), 488);
-  assertNull(res[256].firstMatch("a1bCA"), 489);
-  assertNull(res[256].firstMatch("a2bCA"), 490);
-  assertNull(res[257].firstMatch("a bc dCACBCC"), 491);
-  assertNull(res[257].firstMatch("aabc"), 492);
-  assertNull(res[257].firstMatch("bc"), 493);
-  assertNull(res[257].firstMatch("** Failers"), 494);
-  assertNull(res[257].firstMatch("abc"), 495);
-  assertNull(res[257].firstMatch("bXaX"), 496);
-  assertNull(res[257].firstMatch("bbXaaX"), 497);
-  assertNull(res[257].firstMatch("(b)\\Xa\\X"), 498);
-  assertNull(res[257].firstMatch("bXXaYYaY"), 499);
-  assertNull(res[257].firstMatch("bXYaXXaX"), 500);
-  assertNull(res[257].firstMatch("bXXaYYaY"), 501);
-  assertToStringEquals("\x0b,\x0b", res[259].firstMatch("\x0b,\x0b"), 502);
-  assertToStringEquals("\x0c,\x0d", res[259].firstMatch("\x0c,\x0d"), 503);
-  assertToStringEquals("abc", res[260].firstMatch("xyz\nabc"), 504);
-  assertToStringEquals("abc", res[260].firstMatch("xyz\nabc<lf>"), 505);
-  assertToStringEquals("abc", res[260].firstMatch("xyz\x0d\nabc<lf>"), 506);
-  assertToStringEquals("abc", res[260].firstMatch("xyz\x0dabc<cr>"), 507);
-  assertToStringEquals("abc", res[260].firstMatch("xyz\x0d\nabc<crlf>"), 508);
-  assertNull(res[260].firstMatch("** Failers"), 509);
-  assertToStringEquals("abc", res[260].firstMatch("xyz\nabc<cr>"), 510);
-  assertToStringEquals("abc", res[260].firstMatch("xyz\x0d\nabc<cr>"), 511);
-  assertToStringEquals("abc", res[260].firstMatch("xyz\nabc<crlf>"), 512);
-  assertToStringEquals("abc", res[260].firstMatch("xyz\x0dabc<crlf>"), 513);
-  assertToStringEquals("abc", res[260].firstMatch("xyz\x0dabc<lf>"), 514);
-  assertToStringEquals("abc", res[261].firstMatch("xyzabc"), 515);
-  assertToStringEquals("abc", res[261].firstMatch("xyzabc\n"), 516);
-  assertToStringEquals("abc", res[261].firstMatch("xyzabc\npqr"), 517);
-  assertToStringEquals("abc", res[261].firstMatch("xyzabc\x0d<cr>"), 518);
-  assertToStringEquals("abc", res[261].firstMatch("xyzabc\x0dpqr<cr>"), 519);
-  assertToStringEquals("abc", res[261].firstMatch("xyzabc\x0d\n<crlf>"), 520);
-  assertToStringEquals(
-      "abc", res[261].firstMatch("xyzabc\x0d\npqr<crlf>"), 521);
-  assertNull(res[261].firstMatch("** Failers"), 522);
-  assertToStringEquals("abc", res[261].firstMatch("xyzabc\x0d"), 523);
-  assertToStringEquals("abc", res[261].firstMatch("xyzabc\x0dpqr"), 524);
-  assertToStringEquals("abc", res[261].firstMatch("xyzabc\x0d\n"), 525);
-  assertToStringEquals("abc", res[261].firstMatch("xyzabc\x0d\npqr"), 526);
-  assertToStringEquals("abc", res[262].firstMatch("xyz\x0dabcdef"), 527);
-  assertToStringEquals("abc", res[262].firstMatch("xyz\nabcdef<lf>"), 528);
-  assertNull(res[262].firstMatch("** Failers"), 529);
-  assertToStringEquals("abc", res[262].firstMatch("xyz\nabcdef"), 530);
-  assertToStringEquals("abc", res[263].firstMatch("xyz\nabcdef"), 531);
-  assertToStringEquals("abc", res[263].firstMatch("xyz\x0dabcdef<cr>"), 532);
-  assertNull(res[263].firstMatch("** Failers"), 533);
-  assertToStringEquals("abc", res[263].firstMatch("xyz\x0dabcdef"), 534);
-  assertToStringEquals("abc", res[264].firstMatch("xyz\x0d\nabcdef"), 535);
-  assertToStringEquals("abc", res[264].firstMatch("xyz\x0dabcdef<cr>"), 536);
-  assertNull(res[264].firstMatch("** Failers"), 537);
-  assertToStringEquals("abc", res[264].firstMatch("xyz\x0dabcdef"), 538);
-  assertToStringEquals("abc", res[266].firstMatch("xyz\x0dabc<bad>"), 539);
-  assertToStringEquals("abc", res[266].firstMatch("abc"), 540);
-  assertToStringEquals("abc", res[267].firstMatch("abc\ndef"), 541);
-  assertToStringEquals("abc", res[267].firstMatch("abc\x0ddef"), 542);
-  assertToStringEquals("abc", res[267].firstMatch("abc\x0d\ndef"), 543);
-  assertToStringEquals("<cr>abc", res[267].firstMatch("<cr>abc\ndef"), 544);
-  assertToStringEquals("<cr>abc", res[267].firstMatch("<cr>abc\x0ddef"), 545);
-  assertToStringEquals("<cr>abc", res[267].firstMatch("<cr>abc\x0d\ndef"), 546);
-  assertToStringEquals("<crlf>abc", res[267].firstMatch("<crlf>abc\ndef"), 547);
-  assertToStringEquals(
-      "<crlf>abc", res[267].firstMatch("<crlf>abc\x0ddef"), 548);
-  assertToStringEquals(
-      "<crlf>abc", res[267].firstMatch("<crlf>abc\x0d\ndef"), 549);
-  assertNull(res[268].firstMatch("abc\ndef"), 550);
-  assertNull(res[268].firstMatch("abc\x0ddef"), 551);
-  assertNull(res[268].firstMatch("abc\x0d\ndef"), 552);
-  assertToStringEquals(
-      "XY,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,XY,Y",
-      res[269].firstMatch("XYO400"),
-      553);
-  assertToStringEquals("aaaA5", res[278].firstMatch("aaaA5"), 554);
-  assertNull(res[278].firstMatch("** Failers"), 555);
-  assertNull(res[278].firstMatch("aaaa5"), 556);
-  assertToStringEquals("aaaA5", res[279].firstMatch("aaaA5"), 557);
-  assertToStringEquals("aaaa5", res[279].firstMatch("aaaa5"), 558);
-  assertToStringEquals("x", res[350].firstMatch("xyCabcCxyz"), 559);
-  assertToStringEquals("x", res[350].firstMatch("xyCabcCxyz"), 560);
-  assertToStringEquals("b", res[350].firstMatch("bXaX"), 561);
-  assertToStringEquals("b", res[350].firstMatch("bXbX"), 562);
-  assertToStringEquals("*", res[350].firstMatch("** Failers"), 563);
-  assertToStringEquals("aX", res[350].firstMatch("aXaX"), 564);
-  assertToStringEquals("aX", res[350].firstMatch("aXbX"), 565);
-  assertToStringEquals("x", res[350].firstMatch("xx"), 566);
-  assertToStringEquals("x", res[350].firstMatch("xy"), 567);
-  assertToStringEquals("y", res[350].firstMatch("yy"), 568);
-  assertToStringEquals("y", res[350].firstMatch("yx"), 569);
-  assertToStringEquals("x", res[350].firstMatch("xx"), 570);
-  assertToStringEquals("x", res[350].firstMatch("xy"), 571);
-  assertToStringEquals("y", res[350].firstMatch("yy"), 572);
-  assertToStringEquals("y", res[350].firstMatch("yx"), 573);
-  assertToStringEquals("b", res[350].firstMatch("bxay"), 574);
-  assertToStringEquals("b", res[350].firstMatch("bxby"), 575);
-  assertToStringEquals("*", res[350].firstMatch("** Failers"), 576);
-  assertToStringEquals("ax", res[350].firstMatch("axby"), 577);
-  assertToStringEquals("X", res[350].firstMatch("XxXxxx"), 578);
-  assertToStringEquals("X", res[350].firstMatch("XxXyyx"), 579);
-  assertToStringEquals("X", res[350].firstMatch("XxXyxx"), 580);
-  assertToStringEquals("*", res[350].firstMatch("** Failers"), 581);
-  assertToStringEquals("x", res[350].firstMatch("x"), 582);
-  assertToStringEquals("ab", res[350].firstMatch("abcabc"), 583);
-  assertToStringEquals("Xaaa,a", res[351].firstMatch("Xaaa"), 584);
-  assertToStringEquals("Xaba,a", res[351].firstMatch("Xaba"), 585);
-  assertThrows(() => new RegExp(r"^[a-\\Q\\E]"), 586);
-  assertNull(res[353].firstMatch("(xy)x"), 587);
-  assertNull(res[353].firstMatch("1221"), 588);
-  assertNull(res[353].firstMatch("Satan, oscillate my metallic sonatas!"), 589);
-  assertNull(res[353].firstMatch("A man, a plan, a canal: Panama!"), 590);
-  assertNull(res[353].firstMatch("Able was I ere I saw Elba."), 591);
-  assertNull(res[353].firstMatch("*** Failers"), 592);
-  assertNull(res[353].firstMatch("The quick brown fox"), 593);
-  assertToStringEquals("abcd:,abcd", res[354].firstMatch("abcd:"), 594);
-  assertToStringEquals("abcd:,abcd", res[354].firstMatch("abcd:"), 595);
-  assertToStringEquals("a:,a", res[354].firstMatch("a:aaxyz"), 596);
-  assertToStringEquals("ab:,ab", res[354].firstMatch("ab:ababxyz"), 597);
-  assertNull(res[354].firstMatch("** Failers"), 598);
-  assertToStringEquals("a:,a", res[354].firstMatch("a:axyz"), 599);
-  assertToStringEquals("ab:,ab", res[354].firstMatch("ab:abxyz"), 600);
-  assertNull(res[354].firstMatch("abd"), 601);
-  assertNull(res[354].firstMatch("ce"), 602);
-  assertNull(res[354].firstMatch("abcabc1Xabc2XabcXabcabc"), 603);
-  assertNull(res[354].firstMatch("abcabc1Xabc2XabcXabcabc"), 604);
-  assertNull(res[354].firstMatch("abcabc1Xabc2XabcXabcabc"), 605);
-  assertNull(res[354].firstMatch("abcd"), 606);
-  assertNull(res[354].firstMatch("metcalfe 33"), 607);
-  assertNull(res[356].firstMatch("a\x0db"), 608);
-  assertNull(res[356].firstMatch("a\nb<cr>"), 609);
-  assertToStringEquals("a\x85b", res[356].firstMatch("a\x85b<anycrlf> "), 610);
-  assertNull(res[356].firstMatch("** Failers"), 611);
-  assertNull(res[356].firstMatch("a\nb"), 612);
-  assertNull(res[356].firstMatch("a\nb<any>"), 613);
-  assertNull(res[356].firstMatch("a\x0db<cr>"), 614);
-  assertNull(res[356].firstMatch("a\x0db<any>"), 615);
-  assertToStringEquals("a\x85b", res[356].firstMatch("a\x85b<any> "), 616);
-  assertNull(res[356].firstMatch("a\x0db<anycrlf>"), 617);
-  assertToStringEquals(
-      "abc1",
-      res[357].firstMatch(
-          "abc1 \nabc2 \x0babc3xx \x0cabc4 \x0dabc5xx \x0d\nabc6 \x85abc7 JUNK"),
-      618);
-  assertToStringEquals(
-      "abc1",
-      res[358].firstMatch(
-          "abc1\n abc2\x0b abc3\x0c abc4\x0d abc5\x0d\n abc6\x85 abc7 abc9"),
-      619);
-  assertNull(res[361].firstMatch("a\nb"), 620);
-  assertNull(res[361].firstMatch("a\x0db"), 621);
-  assertNull(res[361].firstMatch("a\x0d\nb"), 622);
-  assertNull(res[361].firstMatch("a\x0bb"), 623);
-  assertNull(res[361].firstMatch("a\x0cb"), 624);
-  assertNull(res[361].firstMatch("a\x85b"), 625);
-  assertNull(res[361].firstMatch("** Failers"), 626);
-  assertNull(res[361].firstMatch("a\n\x0db"), 627);
-  assertToStringEquals("ab", res[362].firstMatch("ab"), 628);
-  assertNull(res[362].firstMatch("a\nb"), 629);
-  assertNull(res[362].firstMatch("a\x0db"), 630);
-  assertNull(res[362].firstMatch("a\x0d\nb"), 631);
-  assertNull(res[362].firstMatch("a\x0bb"), 632);
-  assertNull(res[362].firstMatch("a\x0cb"), 633);
-  assertNull(res[362].firstMatch("a\x85b"), 634);
-  assertNull(res[362].firstMatch("a\n\x0db"), 635);
-  assertNull(res[362].firstMatch("a\n\x0d\x85\x0cb"), 636);
-  assertNull(res[363].firstMatch("a\nb"), 637);
-  assertNull(res[363].firstMatch("a\x0db"), 638);
-  assertNull(res[363].firstMatch("a\x0d\nb"), 639);
-  assertNull(res[363].firstMatch("a\x0bb"), 640);
-  assertNull(res[363].firstMatch("a\x0cb"), 641);
-  assertNull(res[363].firstMatch("a\x85b"), 642);
-  assertNull(res[363].firstMatch("a\n\x0db"), 643);
-  assertNull(res[363].firstMatch("a\n\x0d\x85\x0cb"), 644);
-  assertNull(res[363].firstMatch("** Failers"), 645);
-  assertNull(res[363].firstMatch("ab"), 646);
-  assertNull(res[364].firstMatch("a\nb"), 647);
-  assertNull(res[364].firstMatch("a\n\x0db"), 648);
-  assertNull(res[364].firstMatch("a\n\x0d\x85b"), 649);
-  assertNull(res[364].firstMatch("a\x0d\n\x0d\nb"), 650);
-  assertNull(res[364].firstMatch("a\x0d\n\x0d\n\x0d\nb"), 651);
-  assertNull(res[364].firstMatch("a\n\x0d\n\x0db"), 652);
-  assertNull(res[364].firstMatch("a\n\n\x0d\nb"), 653);
-  assertNull(res[364].firstMatch("** Failers"), 654);
-  assertNull(res[364].firstMatch("a\n\n\n\x0db"), 655);
-  assertNull(res[364].firstMatch("a\x0d"), 656);
-  assertToStringEquals("aRb", res[365].firstMatch("aRb"), 657);
-  assertNull(res[365].firstMatch("** Failers"), 658);
-  assertNull(res[365].firstMatch("a\nb"), 659);
-  assertNull(res[365].firstMatch("abcPXP123"), 660);
-  assertNull(res[365].firstMatch("abcPXP123"), 661);
-  assertNull(res[365].firstMatch("1.2.3.4"), 662);
-  assertNull(res[365].firstMatch("131.111.10.206"), 663);
-  assertNull(res[365].firstMatch("10.0.0.0"), 664);
-  assertNull(res[365].firstMatch("** Failers"), 665);
-  assertNull(res[365].firstMatch("10.6"), 666);
-  assertNull(res[365].firstMatch("455.3.4.5"), 667);
-  assertNull(res[365].firstMatch("1.2.3.4"), 668);
-  assertNull(res[365].firstMatch("131.111.10.206"), 669);
-  assertNull(res[365].firstMatch("10.0.0.0"), 670);
-  assertNull(res[365].firstMatch("** Failers"), 671);
-  assertNull(res[365].firstMatch("10.6"), 672);
-  assertNull(res[365].firstMatch("455.3.4.5"), 673);
-  assertNull(res[365].firstMatch("123axbaxbaxbx456"), 674);
-  assertNull(res[365].firstMatch("123axbaxbaxb456"), 675);
-  assertNull(res[365].firstMatch("123axbaxbaxbx456"), 676);
-  assertNull(res[365].firstMatch("123axbaxbaxbx456"), 677);
-  assertNull(res[365].firstMatch("123axbaxbaxbx456"), 678);
-  assertNull(res[366].firstMatch("ababababbbabZXXXX"), 679);
-  assertNull(res[372].firstMatch("a\x0db"), 680);
-  assertNull(res[372].firstMatch("*** Failers"), 681);
-  assertNull(res[372].firstMatch("a\nb"), 682);
-  assertToStringEquals("afoo", res[373].firstMatch("afoo"), 683);
-  assertNull(res[373].firstMatch("** Failers"), 684);
-  assertNull(res[373].firstMatch("\x0d\nfoo"), 685);
-  assertNull(res[373].firstMatch("\nfoo"), 686);
-  assertToStringEquals("afoo", res[374].firstMatch("afoo"), 687);
-  assertNull(res[374].firstMatch("\nfoo"), 688);
-  assertNull(res[374].firstMatch("** Failers"), 689);
-  assertNull(res[374].firstMatch("\x0d\nfoo"), 690);
-  assertToStringEquals("afoo", res[375].firstMatch("afoo"), 691);
-  assertNull(res[375].firstMatch("** Failers"), 692);
-  assertNull(res[375].firstMatch("\nfoo"), 693);
-  assertNull(res[375].firstMatch("\x0d\nfoo"), 694);
-  assertToStringEquals("afoo", res[376].firstMatch("afoo"), 695);
-  assertNull(res[376].firstMatch("\x0d\nfoo"), 696);
-  assertNull(res[376].firstMatch("\nfoo"), 697);
-  assertToStringEquals("", res[377].firstMatch("abc\x0d\x0dxyz"), 698);
-  assertToStringEquals("", res[377].firstMatch("abc\n\x0dxyz  "), 699);
-  assertNull(res[377].firstMatch("** Failers "), 700);
-  assertToStringEquals("", res[377].firstMatch("abc\x0d\nxyz"), 701);
-  assertToStringEquals("", res[377].firstMatch("abc\x0d\n\x0d\n"), 702);
-  assertToStringEquals("", res[377].firstMatch("abc\x0d\n\x0d\n"), 703);
-  assertToStringEquals("", res[377].firstMatch("abc\x0d\n\x0d\n"), 704);
-  assertToStringEquals(
-      "abc1",
-      res[378].firstMatch(
-          "abc1\n abc2\x0b abc3\x0c abc4\x0d abc5\x0d\n abc6\x85 abc9"),
-      705);
-  assertToStringEquals("X", res[379].firstMatch("XABC"), 706);
-  assertNull(res[379].firstMatch("** Failers "), 707);
-  assertToStringEquals("X", res[379].firstMatch("XABCB"), 708);
-  assertThrows(() => new RegExp(r"(ab|c)(?-1)"), 709);
-  assertNull(res[379].firstMatch("abc"), 710);
-  assertNull(res[379].firstMatch("xyabcabc"), 711);
-  assertNull(res[379].firstMatch("** Failers"), 712);
-  assertNull(res[379].firstMatch("xyabc  "), 713);
-  assertThrows(() => new RegExp(r"x(?-0)y"), 714);
-  assertThrows(() => new RegExp(r"x(?-1)y"), 715);
-  assertNull(res[379].firstMatch("abcX"), 716);
-  assertNull(res[379].firstMatch("Y"), 717);
-  assertNull(res[379].firstMatch("** Failers"), 718);
-  assertNull(res[379].firstMatch("abcY   "), 719);
-  assertNull(res[379].firstMatch("YabcXabc"), 720);
-  assertNull(res[379].firstMatch("YabcXabcXabc"), 721);
-  assertNull(res[379].firstMatch("** Failers"), 722);
-  assertToStringEquals("X", res[379].firstMatch("XabcXabc  "), 723);
-  assertNull(res[379].firstMatch("Y!"), 724);
-  assertNull(res[380].firstMatch("foobar"), 725);
-  assertNull(res[381].firstMatch("foobar"), 726);
-  assertToStringEquals("foobaz,foo,baz", res[381].firstMatch("foobaz "), 727);
-  assertNull(res[382].firstMatch("foobarbaz"), 728);
-  assertNull(res[382].firstMatch("tom-tom"), 729);
-  assertNull(res[382].firstMatch("bon-bon "), 730);
-  assertNull(res[382].firstMatch("** Failers"), 731);
-  assertNull(res[382].firstMatch("tom-bon  "), 732);
-  assertNull(res[382].firstMatch("tom-tom"), 733);
-  assertNull(res[382].firstMatch("bon-bon "), 734);
-  assertThrows(() => new RegExp(r"(?|(abc)|(xyz))"), 735);
-  assertThrows(() => new RegExp(r"(x)(?|(abc)|(xyz))(x)"), 736);
-  assertNull(res[383].firstMatch("xabcx"), 737);
-  assertNull(res[383].firstMatch("xxyzx "), 738);
-  assertThrows(() => new RegExp(r"(x)(?|(abc)(pqr)|(xyz))(x)"), 739);
-  assertNull(res[383].firstMatch("xabcpqrx"), 740);
-  assertNull(res[383].firstMatch("xxyzx "), 741);
-  assertThrows(() => new RegExp(r"(?|(abc)|(xyz))\1"), 742);
-  assertNull(res[383].firstMatch("abcabc"), 743);
-  assertNull(res[383].firstMatch("xyzxyz "), 744);
-  assertNull(res[383].firstMatch("** Failers"), 745);
-  assertNull(res[383].firstMatch("abcxyz"), 746);
-  assertNull(res[383].firstMatch("xyzabc   "), 747);
-  assertNull(res[383].firstMatch("abcabc"), 748);
-  assertNull(res[383].firstMatch("xyzabc "), 749);
-  assertNull(res[383].firstMatch("** Failers "), 750);
-  assertNull(res[383].firstMatch("xyzxyz "), 751);
-  assertNull(res[384].firstMatch("X X\n"), 752);
-  assertNull(res[384].firstMatch("X\x09X\x0b"), 753);
-  assertNull(res[384].firstMatch("** Failers"), 754);
-  assertNull(res[384].firstMatch("\xa0 X\n   "), 755);
-  assertNull(res[385].firstMatch("\x09 \xa0X\n\x0b\x0c\x0d\n"), 756);
-  assertNull(res[385].firstMatch("\x09 \xa0\n\x0b\x0c\x0d\n"), 757);
-  assertNull(res[385].firstMatch("\x09 \xa0\n\x0b\x0c"), 758);
-  assertNull(res[385].firstMatch("** Failers "), 759);
-  assertNull(res[385].firstMatch("\x09 \xa0\n\x0b"), 760);
-  assertNull(res[385].firstMatch(" "), 761);
-  assertNull(res[386].firstMatch("XY  ABCDE"), 762);
-  assertNull(res[386].firstMatch("XY  PQR ST "), 763);
-  assertNull(res[387].firstMatch("XY  AB    PQRS"), 764);
-  assertNull(res[388].firstMatch(">XNNNYZ"), 765);
-  assertNull(res[388].firstMatch(">  X NYQZ"), 766);
-  assertNull(res[388].firstMatch("** Failers"), 767);
-  assertNull(res[388].firstMatch(">XYZ   "), 768);
-  assertNull(res[388].firstMatch(">  X NY Z"), 769);
-  assertNull(res[389].firstMatch(">XY\nZ\nA\x0bNN\x0c"), 770);
-  assertNull(res[389].firstMatch(">\n\x0dX\nY\n\x0bZZZ\nAAA\x0bNNN\x0c"), 771);
-  assertNull(res[390].firstMatch(">\x09<"), 772);
-  assertNull(res[391].firstMatch(">\x09 \xa0<"), 773);
-  assertNull(res[396].firstMatch("** Failers"), 774);
-  assertNull(res[396].firstMatch("XXXX"), 775);
-  assertNull(res[397].firstMatch("XXXX Y "), 776);
-  assertNull(res[419].firstMatch("aaaaaa"), 777);
-  assertNull(res[419].firstMatch("aaabccc"), 778);
-  assertNull(res[419].firstMatch("aaabccc"), 779);
-  assertNull(res[419].firstMatch("aaabccc"), 780);
-  assertNull(res[419].firstMatch("aaabcccaaabccc"), 781);
-  assertNull(res[419].firstMatch("aaaxxxxxx"), 782);
-  assertNull(res[419].firstMatch("aaa++++++ "), 783);
-  assertNull(res[419].firstMatch("bbbxxxxx"), 784);
-  assertNull(res[419].firstMatch("bbb+++++ "), 785);
-  assertNull(res[419].firstMatch("cccxxxx"), 786);
-  assertNull(res[419].firstMatch("ccc++++ "), 787);
-  assertNull(res[419].firstMatch("dddddddd   "), 788);
-  assertNull(res[419].firstMatch("aaaxxxxxx"), 789);
-  assertNull(res[419].firstMatch("aaa++++++ "), 790);
-  assertNull(res[419].firstMatch("bbbxxxxx"), 791);
-  assertNull(res[419].firstMatch("bbb+++++ "), 792);
-  assertNull(res[419].firstMatch("cccxxxx"), 793);
-  assertNull(res[419].firstMatch("ccc++++ "), 794);
-  assertNull(res[419].firstMatch("dddddddd   "), 795);
-  assertNull(res[419].firstMatch("aaabccc"), 796);
-  assertNull(res[419].firstMatch("ABX"), 797);
-  assertNull(res[419].firstMatch("AADE"), 798);
-  assertNull(res[419].firstMatch("ACDE"), 799);
-  assertNull(res[419].firstMatch("** Failers"), 800);
-  assertNull(res[419].firstMatch("AD "), 801);
-  assertNull(res[419].firstMatch("    "), 802);
-  assertNull(res[419].firstMatch("aaaaaa"), 803);
-  assertNull(res[419].firstMatch("aaabccc"), 804);
-  assertNull(res[419].firstMatch("aaabccc"), 805);
-  assertNull(res[419].firstMatch("aaabccc"), 806);
-  assertNull(res[419].firstMatch("aaabcccaaabccc"), 807);
-  assertNull(res[419].firstMatch("aaabccc"), 808);
-  assertNull(res[422].firstMatch("\x0d\nA"), 809);
-  assertToStringEquals("\nA", res[423].firstMatch("\x0d\nA "), 810);
-  assertToStringEquals("\nA", res[424].firstMatch("\x0d\nA "), 811);
-  assertToStringEquals("\nA,\n", res[425].firstMatch("\x0d\nA "), 812);
-  assertNull(res[425].firstMatch("a\nb"), 813);
-  assertNull(res[425].firstMatch("** Failers"), 814);
-  assertNull(res[425].firstMatch("a\x0db  "), 815);
-  assertNull(res[425].firstMatch("a\nb"), 816);
-  assertNull(res[425].firstMatch("** Failers"), 817);
-  assertNull(res[425].firstMatch("a\x0db  "), 818);
-  assertNull(res[425].firstMatch("a\x0db"), 819);
-  assertNull(res[425].firstMatch("** Failers"), 820);
-  assertNull(res[425].firstMatch("a\nb  "), 821);
-  assertNull(res[425].firstMatch("a\x0db"), 822);
-  assertNull(res[425].firstMatch("a\nb  "), 823);
-  assertNull(res[425].firstMatch("** Failers"), 824);
-  assertNull(res[425].firstMatch("a\x0d\nb  "), 825);
-  assertNull(res[425].firstMatch("** Failers"), 826);
-  assertNull(res[425].firstMatch("a\x0db"), 827);
-  assertNull(res[425].firstMatch("a\nb  "), 828);
-  assertNull(res[425].firstMatch("a\x0d\nb  "), 829);
-  assertNull(res[425].firstMatch("** Failers"), 830);
-  assertNull(res[425].firstMatch("a\x0db"), 831);
-  assertNull(res[425].firstMatch("a\nb  "), 832);
-  assertNull(res[425].firstMatch("a\x0d\nb  "), 833);
-  assertNull(res[425].firstMatch("a\x85b "), 834);
-  assertNull(res[426].firstMatch("a\x0db"), 835);
-  assertNull(res[426].firstMatch("a\nb"), 836);
-  assertNull(res[426].firstMatch("a\x0d\nb"), 837);
-  assertNull(res[426].firstMatch("** Failers"), 838);
-  assertNull(res[426].firstMatch("a\x85b"), 839);
-  assertNull(res[426].firstMatch("a\x0bb     "), 840);
-  assertNull(res[427].firstMatch("a\x0db"), 841);
-  assertNull(res[427].firstMatch("a\nb"), 842);
-  assertNull(res[427].firstMatch("a\x0d\nb"), 843);
-  assertNull(res[427].firstMatch("a\x85b"), 844);
-  assertNull(res[427].firstMatch("a\x0bb     "), 845);
-  assertNull(res[427].firstMatch("** Failers "), 846);
-  assertNull(res[427].firstMatch("a\x85b<bsr_anycrlf>"), 847);
-  assertNull(res[427].firstMatch("a\x0bb<bsr_anycrlf>"), 848);
-  assertNull(res[428].firstMatch("a\x0db"), 849);
-  assertNull(res[428].firstMatch("a\nb"), 850);
-  assertNull(res[428].firstMatch("a\x0d\nb"), 851);
-  assertNull(res[428].firstMatch("** Failers"), 852);
-  assertNull(res[428].firstMatch("a\x85b"), 853);
-  assertNull(res[428].firstMatch("a\x0bb     "), 854);
-  assertNull(res[429].firstMatch("a\x0db"), 855);
-  assertNull(res[429].firstMatch("a\nb"), 856);
-  assertNull(res[429].firstMatch("a\x0d\nb"), 857);
-  assertNull(res[429].firstMatch("a\x85b"), 858);
-  assertNull(res[429].firstMatch("a\x0bb     "), 859);
-  assertNull(res[429].firstMatch("** Failers "), 860);
-  assertNull(res[429].firstMatch("a\x85b<bsr_anycrlf>"), 861);
-  assertNull(res[429].firstMatch("a\x0bb<bsr_anycrlf>"), 862);
-  assertNull(res[430].firstMatch("a\x0d\n\nb"), 863);
-  assertNull(res[430].firstMatch("a\n\x0d\x0db"), 864);
-  assertNull(res[430].firstMatch("a\x0d\n\x0d\n\x0d\n\x0d\nb"), 865);
-  assertNull(res[430].firstMatch("** Failers"), 866);
-  assertNull(res[430].firstMatch("a\x8585b"), 867);
-  assertNull(res[430].firstMatch("a\x0b\x00bb     "), 868);
-  assertNull(res[431].firstMatch("a\x0d\x0db"), 869);
-  assertNull(res[431].firstMatch("a\n\n\nb"), 870);
-  assertNull(res[431].firstMatch("a\x0d\n\n\x0d\x0db"), 871);
-  assertNull(res[431].firstMatch("a\x8585b"), 872);
-  assertNull(res[431].firstMatch("a\x0b\x00bb     "), 873);
-  assertNull(res[431].firstMatch("** Failers "), 874);
-  assertNull(res[431].firstMatch("a\x0d\x0d\x0d\x0d\x0db "), 875);
-  assertNull(res[431].firstMatch("a\x8585b<bsr_anycrlf>"), 876);
-  assertNull(res[431].firstMatch("a\x0b\x00bb<bsr_anycrlf>"), 877);
-  assertNull(res[431].firstMatch("a\nb"), 878);
-  assertNull(res[431].firstMatch("a\x0db "), 879);
-  assertNull(res[431].firstMatch("a\x85b"), 880);
-  assertNull(res[431].firstMatch("a\nb"), 881);
-  assertNull(res[431].firstMatch("a\x0db "), 882);
-  assertNull(res[431].firstMatch("a\x85b"), 883);
-  assertThrows(() => new RegExp(r"(?-+a)"), 884);
-  assertNull(res[443].firstMatch("aaaa"), 885);
-  assertNull(res[443].firstMatch("bacxxx"), 886);
-  assertNull(res[443].firstMatch("bbaccxxx "), 887);
-  assertNull(res[443].firstMatch("bbbacccxx"), 888);
-  assertNull(res[443].firstMatch("aaaa"), 889);
-  assertNull(res[443].firstMatch("bacxxx"), 890);
-  assertNull(res[443].firstMatch("bbaccxxx "), 891);
-  assertNull(res[443].firstMatch("bbbacccxx"), 892);
-  assertToStringEquals("a,a", res[444].firstMatch("aaaa"), 893);
-  assertNull(res[444].firstMatch("bacxxx"), 894);
-  assertNull(res[444].firstMatch("bbaccxxx "), 895);
-  assertNull(res[444].firstMatch("bbbacccxx"), 896);
-  assertToStringEquals("a,a", res[445].firstMatch("aaaa"), 897);
-  assertNull(res[445].firstMatch("bacxxx"), 898);
-  assertNull(res[445].firstMatch("bbaccxxx "), 899);
-  assertNull(res[445].firstMatch("bbbacccxx"), 900);
-  assertToStringEquals("a,a", res[446].firstMatch("aaaa"), 901);
-  assertNull(res[446].firstMatch("bacxxx"), 902);
-  assertNull(res[446].firstMatch("bbaccxxx "), 903);
-  assertNull(res[446].firstMatch("bbbacccxx"), 904);
-  assertToStringEquals("a,a,a", res[447].firstMatch("aaaa"), 905);
-  assertNull(res[447].firstMatch("bacxxx"), 906);
-  assertNull(res[447].firstMatch("bbaccxxx "), 907);
-  assertNull(res[447].firstMatch("bbbacccxx"), 908);
-  assertNull(res[449].firstMatch("bacxxx"), 909);
-  assertNull(res[449].firstMatch("XaaX"), 910);
-  assertNull(res[449].firstMatch("XAAX "), 911);
-  assertNull(res[449].firstMatch("XaaX"), 912);
-  assertNull(res[449].firstMatch("** Failers "), 913);
-  assertNull(res[449].firstMatch("XAAX "), 914);
-  assertNull(res[449].firstMatch("XaaX"), 915);
-  assertNull(res[449].firstMatch("XAAX "), 916);
-  assertNull(res[449].firstMatch("xzxx"), 917);
-  assertNull(res[449].firstMatch("yzyy "), 918);
-  assertNull(res[449].firstMatch("** Failers"), 919);
-  assertNull(res[449].firstMatch("xxz  "), 920);
-  assertToStringEquals("a,,,a", res[450].firstMatch("cat"), 921);
-  assertToStringEquals("a,,,a", res[451].firstMatch("cat"), 922);
-  assertToStringEquals("TA]", res[452].firstMatch("The ACTA] comes "), 923);
-  assertToStringEquals("TA]", res[453].firstMatch("The ACTA] comes "), 924);
-  assertNull(res[453].firstMatch("abcbabc"), 925);
-  assertNull(res[453].firstMatch("abcbabc"), 926);
-  assertNull(res[453].firstMatch("abcbabc"), 927);
-  assertNull(res[453].firstMatch("** Failers "), 928);
-  assertNull(res[453].firstMatch("abcXabc"), 929);
-  assertNull(res[453].firstMatch("abcXabc"), 930);
-  assertNull(res[453].firstMatch("** Failers "), 931);
-  assertNull(res[453].firstMatch("abcbabc"), 932);
-  assertNull(res[453].firstMatch("xyzbabcxyz"), 933);
-  assertNull(res[456].firstMatch("** Failers"), 934);
-  assertNull(res[456].firstMatch("ab"), 935);
-  assertNull(res[457].firstMatch("** Failers"), 936);
-  assertNull(res[457].firstMatch("ab "), 937);
-  assertNull(res[457].firstMatch("** Failers"), 938);
-  assertNull(res[457].firstMatch("ab "), 939);
-  assertToStringEquals("aXb", res[458].firstMatch("aXb"), 940);
-  assertToStringEquals("a\nb", res[458].firstMatch("a\nb "), 941);
-  assertNull(res[458].firstMatch("** Failers"), 942);
-  assertNull(res[458].firstMatch("ab  "), 943);
-  assertToStringEquals("aXb", res[459].firstMatch("aXb"), 944);
-  assertToStringEquals("a\nX\nXb", res[459].firstMatch("a\nX\nXb "), 945);
-  assertNull(res[459].firstMatch("** Failers"), 946);
-  assertNull(res[459].firstMatch("ab  "), 947);
-  assertToStringEquals("acb", res[463].firstMatch("acb"), 948);
-  assertToStringEquals("ab", res[463].firstMatch("ab"), 949);
-  assertNull(res[463].firstMatch("ax{100}b "), 950);
-  assertNull(res[463].firstMatch("*** Failers"), 951);
-  assertNull(res[463].firstMatch("a\nb  "), 952);
-  assertNull(res[464].firstMatch("ax{4000}xyb "), 953);
-  assertNull(res[464].firstMatch("ax{4000}yb "), 954);
-  assertNull(res[464].firstMatch("ax{4000}x{100}yb "), 955);
-  assertNull(res[464].firstMatch("*** Failers"), 956);
-  assertNull(res[464].firstMatch("ax{4000}b "), 957);
-  assertNull(res[464].firstMatch("ac\ncb "), 958);
-  assertToStringEquals("a\xc0,,\xc0", res[465].firstMatch("a\xc0\x88b"), 959);
-  assertToStringEquals("ax,,x", res[466].firstMatch("ax{100}b"), 960);
-  assertToStringEquals(
-      "a\xc0\x88b,\xc0\x88,b", res[467].firstMatch("a\xc0\x88b"), 961);
-  assertToStringEquals(
-      "ax{100}b,x{100},b", res[468].firstMatch("ax{100}b"), 962);
-  assertToStringEquals(
-      "a\xc0\x92,\xc0,\x92", res[469].firstMatch("a\xc0\x92bcd"), 963);
-  assertToStringEquals("ax{,x,{", res[470].firstMatch("ax{240}bcd"), 964);
-  assertToStringEquals(
-      "a\xc0\x92,\xc0,\x92", res[471].firstMatch("a\xc0\x92bcd"), 965);
-  assertToStringEquals("ax{,x,{", res[472].firstMatch("ax{240}bcd"), 966);
-  assertToStringEquals("a\xc0,,\xc0", res[473].firstMatch("a\xc0\x92bcd"), 967);
-  assertToStringEquals("ax,,x", res[474].firstMatch("ax{240}bcd"), 968);
-  assertNull(res[475].firstMatch("ax{1234}xyb "), 969);
-  assertNull(res[475].firstMatch("ax{1234}x{4321}yb "), 970);
-  assertNull(res[475].firstMatch("ax{1234}x{4321}x{3412}b "), 971);
-  assertNull(res[475].firstMatch("*** Failers"), 972);
-  assertNull(res[475].firstMatch("ax{1234}b "), 973);
-  assertNull(res[475].firstMatch("ac\ncb "), 974);
-  assertToStringEquals(
-      "ax{1234}xyb,x{1234}xy", res[476].firstMatch("ax{1234}xyb "), 975);
-  assertToStringEquals("ax{1234}x{4321}yb,x{1234}x{4321}y",
-      res[476].firstMatch("ax{1234}x{4321}yb "), 976);
-  assertToStringEquals("ax{1234}x{4321}x{3412}b,x{1234}x{4321}x{3412}",
-      res[476].firstMatch("ax{1234}x{4321}x{3412}b "), 977);
-  assertToStringEquals("axxxxbcdefghijb,xxxxbcdefghij",
-      res[476].firstMatch("axxxxbcdefghijb "), 978);
-  assertToStringEquals(
-      "ax{1234}x{4321}x{3412}x{3421}b,x{1234}x{4321}x{3412}x{3421}",
-      res[476].firstMatch("ax{1234}x{4321}x{3412}x{3421}b "),
-      979);
-  assertNull(res[476].firstMatch("*** Failers"), 980);
-  assertToStringEquals(
-      "ax{1234}b,x{1234}", res[476].firstMatch("ax{1234}b "), 981);
-  assertToStringEquals(
-      "ax{1234}xyb,x{1234}xy", res[477].firstMatch("ax{1234}xyb "), 982);
-  assertToStringEquals("ax{1234}x{4321}yb,x{1234}x{4321}y",
-      res[477].firstMatch("ax{1234}x{4321}yb "), 983);
-  assertToStringEquals("ax{1234}x{4321}x{3412}b,x{1234}x{4321}x{3412}",
-      res[477].firstMatch("ax{1234}x{4321}x{3412}b "), 984);
-  assertToStringEquals(
-      "axxxxb,xxxx", res[477].firstMatch("axxxxbcdefghijb "), 985);
-  assertToStringEquals(
-      "ax{1234}x{4321}x{3412}x{3421}b,x{1234}x{4321}x{3412}x{3421}",
-      res[477].firstMatch("ax{1234}x{4321}x{3412}x{3421}b "),
-      986);
-  assertNull(res[477].firstMatch("*** Failers"), 987);
-  assertToStringEquals(
-      "ax{1234}b,x{1234}", res[477].firstMatch("ax{1234}b "), 988);
-  assertNull(res[478].firstMatch("ax{1234}xyb "), 989);
-  assertNull(res[478].firstMatch("ax{1234}x{4321}yb "), 990);
-  assertNull(res[478].firstMatch("ax{1234}x{4321}x{3412}b "), 991);
-  assertToStringEquals(
-      "axxxxb,xxxx", res[478].firstMatch("axxxxbcdefghijb "), 992);
-  assertNull(res[478].firstMatch("ax{1234}x{4321}x{3412}x{3421}b "), 993);
-  assertToStringEquals(
-      "axbxxb,xbxx", res[478].firstMatch("axbxxbcdefghijb "), 994);
-  assertToStringEquals(
-      "axxxxxb,xxxxx", res[478].firstMatch("axxxxxbcdefghijb "), 995);
-  assertNull(res[478].firstMatch("*** Failers"), 996);
-  assertNull(res[478].firstMatch("ax{1234}b "), 997);
-  assertNull(res[478].firstMatch("axxxxxxbcdefghijb "), 998);
-  assertNull(res[479].firstMatch("ax{1234}xyb "), 999);
-  assertNull(res[479].firstMatch("ax{1234}x{4321}yb "), 1000);
-  assertNull(res[479].firstMatch("ax{1234}x{4321}x{3412}b "), 1001);
-  assertToStringEquals(
-      "axxxxb,xxxx", res[479].firstMatch("axxxxbcdefghijb "), 1002);
-  assertNull(res[479].firstMatch("ax{1234}x{4321}x{3412}x{3421}b "), 1003);
-  assertToStringEquals(
-      "axbxxb,xbxx", res[479].firstMatch("axbxxbcdefghijb "), 1004);
-  assertToStringEquals(
-      "axxxxxb,xxxxx", res[479].firstMatch("axxxxxbcdefghijb "), 1005);
-  assertNull(res[479].firstMatch("*** Failers"), 1006);
-  assertNull(res[479].firstMatch("ax{1234}b "), 1007);
-  assertNull(res[479].firstMatch("axxxxxxbcdefghijb "), 1008);
-  assertNull(res[479].firstMatch("*** Failers"), 1009);
-  assertNull(res[479].firstMatch("x{100}"), 1010);
-  assertNull(res[479].firstMatch("aXbcd"), 1011);
-  assertNull(res[479].firstMatch("ax{100}bcd"), 1012);
-  assertNull(res[479].firstMatch("ax{100000}bcd"), 1013);
-  assertNull(res[479].firstMatch("x{100}x{100}x{100}b"), 1014);
-  assertNull(res[479].firstMatch("*** Failers "), 1015);
-  assertNull(res[479].firstMatch("x{100}x{100}b"), 1016);
-  assertNull(res[479].firstMatch("x{ab} "), 1017);
-  assertNull(res[479].firstMatch("\xc2\xab"), 1018);
-  assertNull(res[479].firstMatch("*** Failers "), 1019);
-  assertNull(res[479].firstMatch("\x00{ab}"), 1020);
-  assertNull(res[479].firstMatch("WXYZ"), 1021);
-  assertNull(res[479].firstMatch("x{256}XYZ "), 1022);
-  assertNull(res[479].firstMatch("*** Failers"), 1023);
-  assertNull(res[479].firstMatch("XYZ "), 1024);
-  assertNull(res[480].firstMatch("Xx{1234}"), 1025);
-  assertNull(res[481].firstMatch("Xx{1234}YZ"), 1026);
-  assertToStringEquals("X", res[482].firstMatch("XYZabcdce"), 1027);
-  assertToStringEquals("X", res[483].firstMatch("XYZabcde"), 1028);
-  assertNull(res[484].firstMatch("Xabcdefg   "), 1029);
-  assertNull(res[484].firstMatch("Xx{1234} "), 1030);
-  assertNull(res[484].firstMatch("Xx{1234}YZ"), 1031);
-  assertNull(res[484].firstMatch("Xx{1234}x{512}  "), 1032);
-  assertNull(res[484].firstMatch("Xx{1234}x{512}YZ"), 1033);
-  assertNull(res[485].firstMatch("Xabcdefg   "), 1034);
-  assertNull(res[485].firstMatch("Xx{1234} "), 1035);
-  assertNull(res[485].firstMatch("Xx{1234}YZ"), 1036);
-  assertNull(res[485].firstMatch("Xx{1234}x{512}  "), 1037);
-  assertToStringEquals("bcd", res[486].firstMatch("bcd"), 1038);
-  assertToStringEquals("x{", res[487].firstMatch("x{100}bc"), 1040);
-  assertToStringEquals("x{100}bcA", res[488].firstMatch("x{100}bcAa"), 1041);
-  assertToStringEquals("x{", res[489].firstMatch("x{100}bca"), 1042);
-  assertToStringEquals("bcd", res[490].firstMatch("bcd"), 1043);
-  assertToStringEquals("x{", res[491].firstMatch("x{100}bc"), 1045);
-  assertToStringEquals("x{100}bc", res[492].firstMatch("x{100}bcAa"), 1046);
-  assertToStringEquals("x{", res[493].firstMatch("x{100}bca"), 1047);
-  assertNull(res[493].firstMatch("abcd"), 1048);
-  assertNull(res[493].firstMatch("abcd"), 1049);
-  assertToStringEquals("x{", res[493].firstMatch("x{100}x{100} "), 1050);
-  assertToStringEquals("x{", res[493].firstMatch("x{100}x{100} "), 1051);
-  assertToStringEquals(
-      "x{", res[493].firstMatch("x{100}x{100}x{100}x{100} "), 1052);
-  assertNull(res[493].firstMatch("abce"), 1053);
-  assertToStringEquals(
-      "x{", res[493].firstMatch("x{100}x{100}x{100}x{100} "), 1054);
-  assertNull(res[493].firstMatch("abcdx{100}x{100}x{100}x{100} "), 1055);
-  assertNull(res[493].firstMatch("abcdx{100}x{100}x{100}x{100} "), 1056);
-  assertNull(res[493].firstMatch("abcdx{100}x{100}x{100}x{100} "), 1057);
-  assertNull(res[493].firstMatch("abcdx{100}x{100}x{100}XX"), 1058);
-  assertNull(
-      res[493].firstMatch("abcdx{100}x{100}x{100}x{100}x{100}x{100}x{100}XX"),
-      1059);
-  assertNull(
-      res[493].firstMatch("abcdx{100}x{100}x{100}x{100}x{100}x{100}x{100}XX"),
-      1060);
-  assertToStringEquals(
-      "Xy", res[493].firstMatch("Xyyyax{100}x{100}bXzzz"), 1061);
-  assertToStringEquals("X", res[496].firstMatch("1X2"), 1062);
-  assertToStringEquals("x", res[496].firstMatch("1x{100}2 "), 1063);
-  assertToStringEquals(">X", res[497].firstMatch("> >X Y"), 1064);
-  assertToStringEquals(">x", res[497].firstMatch("> >x{100} Y"), 1065);
-  assertToStringEquals("1", res[498].firstMatch("x{100}3"), 1066);
-  assertToStringEquals(" ", res[499].firstMatch("x{100} X"), 1067);
-  assertToStringEquals("abcd", res[500].firstMatch("12abcd34"), 1068);
-  assertToStringEquals("*** Failers", res[500].firstMatch("*** Failers"), 1069);
-  assertToStringEquals("  ", res[500].firstMatch("1234  "), 1070);
-  assertToStringEquals("abc", res[501].firstMatch("12abcd34"), 1071);
-  assertToStringEquals("ab", res[501].firstMatch("12ab34"), 1072);
-  assertToStringEquals("***", res[501].firstMatch("*** Failers  "), 1073);
-  assertNull(res[501].firstMatch("1234"), 1074);
-  assertToStringEquals("  ", res[501].firstMatch("12a34  "), 1075);
-  assertToStringEquals("ab", res[502].firstMatch("12abcd34"), 1076);
-  assertToStringEquals("ab", res[502].firstMatch("12ab34"), 1077);
-  assertToStringEquals("**", res[502].firstMatch("*** Failers  "), 1078);
-  assertNull(res[502].firstMatch("1234"), 1079);
-  assertToStringEquals("  ", res[502].firstMatch("12a34  "), 1080);
-  assertToStringEquals("12", res[503].firstMatch("12abcd34"), 1081);
-  assertNull(res[503].firstMatch("*** Failers"), 1082);
-  assertToStringEquals("12", res[504].firstMatch("12abcd34"), 1083);
-  assertToStringEquals("123", res[504].firstMatch("1234abcd"), 1084);
-  assertNull(res[504].firstMatch("*** Failers  "), 1085);
-  assertNull(res[504].firstMatch("1.4 "), 1086);
-  assertToStringEquals("12", res[505].firstMatch("12abcd34"), 1087);
-  assertToStringEquals("12", res[505].firstMatch("1234abcd"), 1088);
-  assertNull(res[505].firstMatch("*** Failers  "), 1089);
-  assertNull(res[505].firstMatch("1.4 "), 1090);
-  assertToStringEquals("12abcd34", res[506].firstMatch("12abcd34"), 1091);
-  assertToStringEquals("***", res[506].firstMatch("*** Failers"), 1092);
-  assertNull(res[506].firstMatch("     "), 1093);
-  assertToStringEquals("12a", res[507].firstMatch("12abcd34"), 1094);
-  assertToStringEquals("123", res[507].firstMatch("1234abcd"), 1095);
-  assertToStringEquals("***", res[507].firstMatch("*** Failers"), 1096);
-  assertNull(res[507].firstMatch("       "), 1097);
-  assertToStringEquals("12", res[508].firstMatch("12abcd34"), 1098);
-  assertToStringEquals("12", res[508].firstMatch("1234abcd"), 1099);
-  assertToStringEquals("**", res[508].firstMatch("*** Failers"), 1100);
-  assertNull(res[508].firstMatch("       "), 1101);
-  assertToStringEquals(">      <", res[509].firstMatch("12>      <34"), 1102);
-  assertNull(res[509].firstMatch("*** Failers"), 1103);
-  assertToStringEquals(">  <", res[510].firstMatch("ab>  <cd"), 1104);
-  assertToStringEquals(">   <", res[510].firstMatch("ab>   <ce"), 1105);
-  assertNull(res[510].firstMatch("*** Failers"), 1106);
-  assertNull(res[510].firstMatch("ab>    <cd "), 1107);
-  assertToStringEquals(">  <", res[511].firstMatch("ab>  <cd"), 1108);
-  assertToStringEquals(">   <", res[511].firstMatch("ab>   <ce"), 1109);
-  assertNull(res[511].firstMatch("*** Failers"), 1110);
-  assertNull(res[511].firstMatch("ab>    <cd "), 1111);
-  assertToStringEquals("12", res[512].firstMatch("12      34"), 1112);
-  assertToStringEquals("Failers", res[512].firstMatch("*** Failers"), 1113);
-  assertNull(res[512].firstMatch("+++=*! "), 1114);
-  assertToStringEquals("ab", res[513].firstMatch("ab  cd"), 1115);
-  assertToStringEquals("abc", res[513].firstMatch("abcd ce"), 1116);
-  assertToStringEquals("Fai", res[513].firstMatch("*** Failers"), 1117);
-  assertNull(res[513].firstMatch("a.b.c"), 1118);
-  assertToStringEquals("ab", res[514].firstMatch("ab  cd"), 1119);
-  assertToStringEquals("ab", res[514].firstMatch("abcd ce"), 1120);
-  assertToStringEquals("Fa", res[514].firstMatch("*** Failers"), 1121);
-  assertNull(res[514].firstMatch("a.b.c"), 1122);
-  assertToStringEquals("====", res[515].firstMatch("12====34"), 1123);
-  assertToStringEquals("*** ", res[515].firstMatch("*** Failers"), 1124);
-  assertToStringEquals(" ", res[515].firstMatch("abcd "), 1125);
-  assertToStringEquals("===", res[516].firstMatch("ab====cd"), 1126);
-  assertToStringEquals("==", res[516].firstMatch("ab==cd"), 1127);
-  assertToStringEquals("***", res[516].firstMatch("*** Failers"), 1128);
-  assertNull(res[516].firstMatch("a.b.c"), 1129);
-  assertToStringEquals("==", res[517].firstMatch("ab====cd"), 1130);
-  assertToStringEquals("==", res[517].firstMatch("ab==cd"), 1131);
-  assertToStringEquals("**", res[517].firstMatch("*** Failers"), 1132);
-  assertNull(res[517].firstMatch("a.b.c"), 1133);
-  assertNull(res[517].firstMatch("x{100}"), 1134);
-  assertNull(res[517].firstMatch("Zx{100}"), 1135);
-  assertNull(res[517].firstMatch("x{100}Z"), 1136);
-  assertToStringEquals("**", res[517].firstMatch("*** Failers "), 1137);
-  assertNull(res[517].firstMatch("Zx{100}"), 1138);
-  assertNull(res[517].firstMatch("x{100}"), 1139);
-  assertNull(res[517].firstMatch("x{100}Z"), 1140);
-  assertToStringEquals("**", res[517].firstMatch("*** Failers "), 1141);
-  assertNull(res[517].firstMatch("abcx{200}X"), 1142);
-  assertNull(res[517].firstMatch("abcx{100}X "), 1143);
-  assertToStringEquals("**", res[517].firstMatch("*** Failers"), 1144);
-  assertToStringEquals("  ", res[517].firstMatch("X  "), 1145);
-  assertNull(res[517].firstMatch("abcx{200}X"), 1146);
-  assertNull(res[517].firstMatch("abcx{100}X "), 1147);
-  assertNull(res[517].firstMatch("abQX "), 1148);
-  assertToStringEquals("**", res[517].firstMatch("*** Failers"), 1149);
-  assertToStringEquals("  ", res[517].firstMatch("X  "), 1150);
-  assertNull(res[517].firstMatch("abcx{100}x{200}x{100}X"), 1151);
-  assertToStringEquals("**", res[517].firstMatch("*** Failers"), 1152);
-  assertNull(res[517].firstMatch("abcx{200}X"), 1153);
-  assertToStringEquals("  ", res[517].firstMatch("X  "), 1154);
-  assertNull(res[517].firstMatch("AX"), 1155);
-  assertNull(res[517].firstMatch("x{150}X"), 1156);
-  assertNull(res[517].firstMatch("x{500}X "), 1157);
-  assertToStringEquals("**", res[517].firstMatch("*** Failers"), 1158);
-  assertNull(res[517].firstMatch("x{100}X"), 1159);
-  assertToStringEquals("  ", res[517].firstMatch("x{200}X   "), 1160);
-  assertNull(res[517].firstMatch("AX"), 1161);
-  assertNull(res[517].firstMatch("x{150}X"), 1162);
-  assertNull(res[517].firstMatch("x{500}X "), 1163);
-  assertToStringEquals("**", res[517].firstMatch("*** Failers"), 1164);
-  assertNull(res[517].firstMatch("x{100}X"), 1165);
-  assertToStringEquals("  ", res[517].firstMatch("x{200}X   "), 1166);
-  assertNull(res[517].firstMatch("QX "), 1167);
-  assertNull(res[517].firstMatch("AX"), 1168);
-  assertNull(res[517].firstMatch("x{500}X "), 1169);
-  assertToStringEquals("**", res[517].firstMatch("*** Failers"), 1170);
-  assertNull(res[517].firstMatch("x{100}X"), 1171);
-  assertNull(res[517].firstMatch("x{150}X"), 1172);
-  assertToStringEquals("  ", res[517].firstMatch("x{200}X   "), 1173);
-  assertNull(res[518].firstMatch("aXb"), 1174);
-  assertNull(res[518].firstMatch("a\nb"), 1175);
-  assertNull(res[519].firstMatch("aXb"), 1176);
-  assertNull(res[519].firstMatch("a\nb"), 1177);
-  assertNull(res[519].firstMatch("*** Failers "), 1178);
-  assertNull(res[519].firstMatch("ax{100}b "), 1179);
-  assertNull(res[519].firstMatch("z"), 1180);
-  assertNull(res[519].firstMatch("Z "), 1181);
-  assertNull(res[519].firstMatch("x{100}"), 1182);
-  assertNull(res[519].firstMatch("*** Failers"), 1183);
-  assertNull(res[519].firstMatch("x{102}"), 1184);
-  assertNull(res[519].firstMatch("y    "), 1185);
-  assertToStringEquals("\xff", res[520].firstMatch(">\xff<"), 1186);
-  assertNull(res[521].firstMatch(">x{ff}<"), 1187);
-  assertToStringEquals("X", res[522].firstMatch("XYZ"), 1188);
-  assertToStringEquals("X", res[523].firstMatch("XYZ"), 1189);
-  assertToStringEquals("x", res[523].firstMatch("x{123} "), 1190);
-  assertToStringEquals(",", res[528].firstMatch("catac"), 1191);
-  assertToStringEquals(",", res[528].firstMatch("ax{256}a "), 1192);
-  assertToStringEquals(",", res[528].firstMatch("x{85}"), 1193);
-  assertToStringEquals(",", res[528].firstMatch("\u1234 "), 1194);
-  assertToStringEquals(",", res[528].firstMatch("\u1234 "), 1195);
-  assertToStringEquals(",", res[528].firstMatch("abcdefg"), 1196);
-  assertToStringEquals(",", res[528].firstMatch("ab"), 1197);
-  assertToStringEquals(",", res[528].firstMatch("a "), 1198);
-  assertToStringEquals("Ax", res[529].firstMatch("Ax{a3}BC"), 1199);
-  assertToStringEquals("Ax", res[530].firstMatch("Ax{a3}BC"), 1200);
-  assertToStringEquals("}=", res[531].firstMatch("+x{a3}== "), 1201);
-  assertToStringEquals("}=", res[532].firstMatch("+x{a3}== "), 1202);
-  assertToStringEquals(
-      "x", res[533].firstMatch("x{442}x{435}x{441}x{442}"), 1203);
-  assertToStringEquals(
-      "x", res[534].firstMatch("x{442}x{435}x{441}x{442}"), 1204);
-  assertToStringEquals(
-      "x", res[535].firstMatch("x{442}x{435}x{441}x{442}"), 1205);
-  assertToStringEquals(
-      "x", res[536].firstMatch("x{442}x{435}x{441}x{442}"), 1206);
-  assertToStringEquals(
-      "{", res[537].firstMatch("x{2442}x{2435}x{2441}x{2442}"), 1207);
-  assertToStringEquals(
-      "{", res[538].firstMatch("x{2442}x{2435}x{2441}x{2442}"), 1208);
-  assertToStringEquals("abc\n\x0dx{442}x{435}x{441}x{442}xyz ",
-      res[539].firstMatch("abc\n\x0dx{442}x{435}x{441}x{442}xyz "), 1209);
-  assertToStringEquals("x{442}x{435}x{441}x{442}",
-      res[539].firstMatch("x{442}x{435}x{441}x{442}"), 1210);
-  assertToStringEquals(
-      "c d", res[540].firstMatch("abc defx{442}x{443}xyz\npqr"), 1211);
-  assertToStringEquals(
-      "c d", res[541].firstMatch("abc defx{442}x{443}xyz\npqr"), 1212);
-  assertNull(res[542].firstMatch("+x{2442}"), 1213);
-  assertNull(res[543].firstMatch("+x{2442}"), 1214);
-  assertNull(res[544].firstMatch("Ax{442}"), 1215);
-  assertNull(res[545].firstMatch("Ax{442}"), 1216);
-  assertNull(res[546].firstMatch("Ax{442}"), 1217);
-  assertNull(res[547].firstMatch("Ax{442}"), 1218);
-  assertNull(res[548].firstMatch("\x19x{e01ff}"), 1219);
-  assertNull(res[549].firstMatch("Ax{422}"), 1220);
-  assertNull(res[550].firstMatch("x{19}x{e01ff}"), 1221);
-  assertNull(res[551].firstMatch("Ax{442}"), 1222);
-  assertNull(res[552].firstMatch("Ax{442}"), 1223);
-  assertNull(res[553].firstMatch("ax{442}"), 1224);
-  assertNull(res[554].firstMatch("+x{2442}"), 1225);
-  assertNull(res[555].firstMatch("Mx{442}"), 1226);
-  assertToStringEquals("abc", res[556].firstMatch("abc"), 1227);
-  assertToStringEquals("abc", res[557].firstMatch("abc"), 1228);
-  assertToStringEquals("abc", res[558].firstMatch("abc"), 1229);
-  assertToStringEquals("abc", res[559].firstMatch("abc"), 1230);
-  assertNull(res[560].firstMatch("x{100}ax{1234}bcd"), 1231);
-  assertNull(res[562].firstMatch("x{0041}x{2262}x{0391}x{002e}"), 1232);
-  assertNull(res[562].firstMatch("x{D55c}x{ad6d}x{C5B4} "), 1233);
-  assertNull(res[562].firstMatch("x{65e5}x{672c}x{8a9e}"), 1234);
-  assertToStringEquals(
-      "{861}X", res[563].firstMatch("x{212ab}x{212ab}x{212ab}x{861}X"), 1235);
-  assertToStringEquals(
-      "x{2", res[564].firstMatch("x{212ab}x{212ab}x{212ab}x{861}"), 1236);
-  assertToStringEquals("x{c", res[564].firstMatch("x{c0}b"), 1237);
-  assertToStringEquals("ax{", res[564].firstMatch("ax{c0}aaaa/ "), 1238);
-  assertToStringEquals("ax{", res[564].firstMatch("ax{c0}aaaa/ "), 1239);
-  assertToStringEquals("ax{", res[564].firstMatch("ax{c0}ax{c0}aaa/ "), 1240);
-  assertToStringEquals("ax{", res[564].firstMatch("ax{c0}aaaa/ "), 1241);
-  assertToStringEquals("ax{", res[564].firstMatch("ax{c0}ax{c0}aaa/ "), 1242);
-  assertToStringEquals("ax{", res[564].firstMatch("ax{c0}aaaa/ "), 1243);
-  assertToStringEquals("ax{", res[564].firstMatch("ax{c0}ax{c0}aaa/ "), 1244);
-  assertToStringEquals(
-      "Sho", res[564].firstMatch("Should produce an error diagnostic"), 1245);
-  assertNull(res[565].firstMatch("Xx{1234}"), 1246);
-  assertNull(res[565].firstMatch("X\nabc "), 1247);
-  assertToStringEquals("b", res[566].firstMatch("bar"), 1248);
-  assertNull(res[566].firstMatch("*** Failers"), 1249);
-  assertNull(res[566].firstMatch("c"), 1250);
-  assertNull(res[566].firstMatch("x{ff}"), 1251);
-  assertNull(res[566].firstMatch("x{100}  "), 1252);
-  assertToStringEquals("c", res[567].firstMatch("c"), 1253);
-  assertToStringEquals("x", res[567].firstMatch("x{ff}"), 1254);
-  assertToStringEquals("x", res[567].firstMatch("x{100}  "), 1255);
-  assertToStringEquals("*", res[567].firstMatch("*** Failers "), 1256);
-  assertNull(res[567].firstMatch("aaa"), 1257);
-  assertToStringEquals("x", res[568].firstMatch("x{f1}"), 1258);
-  assertToStringEquals("x", res[568].firstMatch("x{bf}"), 1259);
-  assertToStringEquals("x", res[568].firstMatch("x{100}"), 1260);
-  assertToStringEquals("x", res[568].firstMatch("x{1000}   "), 1261);
-  assertToStringEquals("*", res[568].firstMatch("*** Failers"), 1262);
-  assertToStringEquals("x", res[568].firstMatch("x{c0} "), 1263);
-  assertToStringEquals("x", res[568].firstMatch("x{f0} "), 1264);
-  assertToStringEquals("1", res[568].firstMatch("1234"), 1265);
-  assertToStringEquals("\"", res[568].firstMatch("\"1234\" "), 1266);
-  assertToStringEquals("x", res[568].firstMatch("x{100}1234"), 1267);
-  assertToStringEquals("\"", res[568].firstMatch("\"x{100}1234\"  "), 1268);
-  assertToStringEquals("x", res[568].firstMatch("x{100}x{100}12ab "), 1269);
-  assertToStringEquals("x", res[568].firstMatch("x{100}x{100}\"12\" "), 1270);
-  assertToStringEquals("*", res[568].firstMatch("*** Failers "), 1271);
-  assertToStringEquals("x", res[568].firstMatch("x{100}x{100}abcd"), 1272);
-  assertToStringEquals("A", res[568].firstMatch("A"), 1273);
-  assertToStringEquals("x", res[568].firstMatch("x{100}"), 1274);
-  assertToStringEquals("Z", res[568].firstMatch("Zx{100}"), 1275);
-  assertToStringEquals("x", res[568].firstMatch("x{100}Z"), 1276);
-  assertToStringEquals("*", res[568].firstMatch("*** Failers "), 1277);
-  assertToStringEquals("Z", res[568].firstMatch("Zx{100}"), 1278);
-  assertToStringEquals("x", res[568].firstMatch("x{100}"), 1279);
-  assertToStringEquals("x", res[568].firstMatch("x{100}Z"), 1280);
-  assertToStringEquals("*", res[568].firstMatch("*** Failers "), 1281);
-  assertToStringEquals("x", res[568].firstMatch("x{100}"), 1282);
-  assertToStringEquals("x", res[568].firstMatch("x{104}"), 1283);
-  assertToStringEquals("*", res[568].firstMatch("*** Failers"), 1284);
-  assertToStringEquals("x", res[568].firstMatch("x{105}"), 1285);
-  assertToStringEquals("x", res[568].firstMatch("x{ff}    "), 1286);
-  assertToStringEquals("x", res[568].firstMatch("x{100}"), 1287);
-  assertToStringEquals("\u0100", res[568].firstMatch("\u0100 "), 1288);
-  assertToStringEquals("\xff", res[569].firstMatch(">\xff<"), 1289);
-  assertNull(res[570].firstMatch(">x{ff}<"), 1290);
-  assertToStringEquals(
-      "\xd6", res[572].firstMatch("\xd6 # Matches without Study"), 1291);
-  assertToStringEquals("x", res[572].firstMatch("x{d6}"), 1292);
-  assertToStringEquals(
-      "\xd6", res[572].firstMatch("\xd6 <-- Same with Study"), 1293);
-  assertToStringEquals("x", res[572].firstMatch("x{d6}"), 1294);
-  assertToStringEquals(
-      "\xd6", res[572].firstMatch("\xd6 # Matches without Study"), 1295);
-  assertToStringEquals("x", res[572].firstMatch("x{d6} "), 1296);
-  assertToStringEquals(
-      "\xd6", res[572].firstMatch("\xd6 <-- Same with Study"), 1297);
-  assertToStringEquals("x", res[572].firstMatch("x{d6} "), 1298);
-  assertToStringEquals("\ufffd", res[572].firstMatch("\ufffd]"), 1299);
-  assertToStringEquals("\ufffd", res[572].firstMatch("\ufffd"), 1300);
-  assertToStringEquals(
-      "\ufffd", res[572].firstMatch("\ufffd\ufffd\ufffd"), 1301);
-  assertToStringEquals(
-      "\ufffd", res[572].firstMatch("\ufffd\ufffd\ufffd?"), 1302);
-  assertNull(res[573].firstMatch("\xc0\x80"), 1303);
-  assertNull(res[573].firstMatch("\xc1\x8f "), 1304);
-  assertNull(res[573].firstMatch("\xe0\x9f\x80"), 1305);
-  assertNull(res[573].firstMatch("\xf0\x8f\x80\x80 "), 1306);
-  assertNull(res[573].firstMatch("\xf8\x87\x80\x80\x80  "), 1307);
-  assertNull(res[573].firstMatch("\xfc\x83\x80\x80\x80\x80"), 1308);
-  assertNull(res[573].firstMatch("\xfe\x80\x80\x80\x80\x80  "), 1309);
-  assertNull(res[573].firstMatch("\xff\x80\x80\x80\x80\x80  "), 1310);
-  assertNull(res[573].firstMatch("\xc3\x8f"), 1311);
-  assertNull(res[573].firstMatch("\xe0\xaf\x80"), 1312);
-  assertNull(res[573].firstMatch("\xe1\x80\x80"), 1313);
-  assertNull(res[573].firstMatch("\xf0\x9f\x80\x80 "), 1314);
-  assertNull(res[573].firstMatch("\xf1\x8f\x80\x80 "), 1315);
-  assertNull(res[573].firstMatch("\xf8\x88\x80\x80\x80  "), 1316);
-  assertNull(res[573].firstMatch("\xf9\x87\x80\x80\x80  "), 1317);
-  assertNull(res[573].firstMatch("\xfc\x84\x80\x80\x80\x80"), 1318);
-  assertNull(res[573].firstMatch("\xfd\x83\x80\x80\x80\x80"), 1319);
-  assertNull(res[573].firstMatch("?\xf8\x88\x80\x80\x80  "), 1320);
-  assertNull(res[573].firstMatch("?\xf9\x87\x80\x80\x80  "), 1321);
-  assertNull(res[573].firstMatch("?\xfc\x84\x80\x80\x80\x80"), 1322);
-  assertNull(res[573].firstMatch("?\xfd\x83\x80\x80\x80\x80"), 1323);
-  assertToStringEquals(".", res[574].firstMatch("A.B"), 1324);
-  assertToStringEquals("{", res[574].firstMatch("Ax{100}B "), 1325);
-  assertToStringEquals("x", res[575].firstMatch("x{100}X   "), 1326);
-  assertToStringEquals("a", res[575].firstMatch("ax{1234}b"), 1327);
-  assertNull(res[577].firstMatch("AxxB     "), 1328);
-  assertToStringEquals(
-      "abc1",
-      res[578].firstMatch(
-          "abc1 \nabc2 \x0babc3xx \x0cabc4 \x0dabc5xx \x0d\nabc6 x{0085}abc7 x{2028}abc8 x{2029}abc9 JUNK"),
-      1329);
-  assertToStringEquals(
-      "abc1",
-      res[579].firstMatch(
-          "abc1\n abc2\x0b abc3\x0c abc4\x0d abc5\x0d\n abc6x{0085} abc7x{2028} abc8x{2029} abc9"),
-      1330);
-  assertNull(res[580].firstMatch("a\nb"), 1331);
-  assertNull(res[580].firstMatch("a\x0db"), 1332);
-  assertNull(res[580].firstMatch("a\x0d\nb"), 1333);
-  assertNull(res[580].firstMatch("a\x0bb"), 1334);
-  assertNull(res[580].firstMatch("a\x0cb"), 1335);
-  assertNull(res[580].firstMatch("ax{85}b   "), 1336);
-  assertNull(res[580].firstMatch("ax{2028}b "), 1337);
-  assertNull(res[580].firstMatch("ax{2029}b "), 1338);
-  assertNull(res[580].firstMatch("** Failers"), 1339);
-  assertNull(res[580].firstMatch("a\n\x0db    "), 1340);
-  assertToStringEquals("ab", res[581].firstMatch("ab"), 1341);
-  assertNull(res[581].firstMatch("a\nb"), 1342);
-  assertNull(res[581].firstMatch("a\x0db"), 1343);
-  assertNull(res[581].firstMatch("a\x0d\nb"), 1344);
-  assertNull(res[581].firstMatch("a\x0bb"), 1345);
-  assertNull(res[581].firstMatch("a\x0cx{2028}x{2029}b"), 1346);
-  assertNull(res[581].firstMatch("ax{85}b   "), 1347);
-  assertNull(res[581].firstMatch("a\n\x0db    "), 1348);
-  assertNull(res[581].firstMatch("a\n\x0dx{85}\x0cb "), 1349);
-  assertNull(res[582].firstMatch("a\nb"), 1350);
-  assertNull(res[582].firstMatch("a\x0db"), 1351);
-  assertNull(res[582].firstMatch("a\x0d\nb"), 1352);
-  assertNull(res[582].firstMatch("a\x0bb"), 1353);
-  assertNull(res[582].firstMatch("a\x0cx{2028}x{2029}b"), 1354);
-  assertNull(res[582].firstMatch("ax{85}b   "), 1355);
-  assertNull(res[582].firstMatch("a\n\x0db    "), 1356);
-  assertNull(res[582].firstMatch("a\n\x0dx{85}\x0cb "), 1357);
-  assertNull(res[582].firstMatch("** Failers"), 1358);
-  assertNull(res[582].firstMatch("ab  "), 1359);
-  assertNull(res[583].firstMatch("a\nb"), 1360);
-  assertNull(res[583].firstMatch("a\n\x0db"), 1361);
-  assertNull(res[583].firstMatch("a\n\x0dx{85}b"), 1362);
-  assertNull(res[583].firstMatch("a\x0d\n\x0d\nb "), 1363);
-  assertNull(res[583].firstMatch("a\x0d\n\x0d\n\x0d\nb "), 1364);
-  assertNull(res[583].firstMatch("a\n\x0d\n\x0db"), 1365);
-  assertNull(res[583].firstMatch("a\n\n\x0d\nb "), 1366);
-  assertNull(res[583].firstMatch("** Failers"), 1367);
-  assertNull(res[583].firstMatch("a\n\n\n\x0db"), 1368);
-  assertNull(res[583].firstMatch("a\x0d"), 1369);
-  assertNull(res[584].firstMatch("X X\n"), 1370);
-  assertNull(res[584].firstMatch("X\x09X\x0b"), 1371);
-  assertNull(res[584].firstMatch("** Failers"), 1372);
-  assertNull(res[584].firstMatch("x{a0} X\n   "), 1373);
-  assertNull(res[585].firstMatch("\x09 x{a0}X\n\x0b\x0c\x0d\n"), 1374);
-  assertNull(res[585].firstMatch("\x09 x{a0}\n\x0b\x0c\x0d\n"), 1375);
-  assertNull(res[585].firstMatch("\x09 x{a0}\n\x0b\x0c"), 1376);
-  assertNull(res[585].firstMatch("** Failers "), 1377);
-  assertNull(res[585].firstMatch("\x09 x{a0}\n\x0b"), 1378);
-  assertNull(res[585].firstMatch(" "), 1379);
-  assertNull(res[586].firstMatch("x{3001}x{3000}x{2030}x{2028}"), 1380);
-  assertNull(res[586].firstMatch("Xx{180e}Xx{85}"), 1381);
-  assertNull(res[586].firstMatch("** Failers"), 1382);
-  assertNull(res[586].firstMatch("x{2009} X\n   "), 1383);
-  assertNull(
-      res[587].firstMatch("x{1680}x{180e}x{2007}Xx{2028}x{2029}\x0c\x0d\n"),
-      1384);
-  assertNull(
-      res[587].firstMatch("\x09x{205f}x{a0}\nx{2029}\x0cx{2028}\n"), 1385);
-  assertNull(res[587].firstMatch("\x09 x{202f}\n\x0b\x0c"), 1386);
-  assertNull(res[587].firstMatch("** Failers "), 1387);
-  assertNull(res[587].firstMatch("\x09x{200a}x{a0}x{2028}\x0b"), 1388);
-  assertNull(res[587].firstMatch(" "), 1389);
-  assertNull(res[588].firstMatch(">x{1680}"), 1390);
-  assertNull(
-      res[589].firstMatch(
-          ">x{1680}x{180e}x{2000}x{2003}x{200a}x{202f}x{205f}x{3000}<"),
-      1391);
-  assertToStringEquals("x{1ec5} ", res[593].firstMatch("x{1ec5} "), 1392);
-  assertNull(res[594].firstMatch("x{0}x{d7ff}x{e000}x{10ffff}"), 1393);
-  assertNull(res[594].firstMatch("x{d800}"), 1394);
-  assertNull(res[594].firstMatch("x{d800}?"), 1395);
-  assertNull(res[594].firstMatch("x{da00}"), 1396);
-  assertNull(res[594].firstMatch("x{da00}?"), 1397);
-  assertNull(res[594].firstMatch("x{dfff}"), 1398);
-  assertNull(res[594].firstMatch("x{dfff}?"), 1399);
-  assertNull(res[594].firstMatch("x{110000}    "), 1400);
-  assertNull(res[594].firstMatch("x{110000}?    "), 1401);
-  assertNull(res[594].firstMatch("x{2000000} "), 1402);
-  assertNull(res[594].firstMatch("x{2000000}? "), 1403);
-  assertNull(res[594].firstMatch("x{7fffffff} "), 1404);
-  assertNull(res[594].firstMatch("x{7fffffff}? "), 1405);
-  assertNull(res[595].firstMatch("a\x0db"), 1406);
-  assertNull(res[595].firstMatch("a\nb"), 1407);
-  assertNull(res[595].firstMatch("a\x0d\nb"), 1408);
-  assertNull(res[595].firstMatch("** Failers"), 1409);
-  assertNull(res[595].firstMatch("ax{85}b"), 1410);
-  assertNull(res[595].firstMatch("a\x0bb     "), 1411);
-  assertNull(res[596].firstMatch("a\x0db"), 1412);
-  assertNull(res[596].firstMatch("a\nb"), 1413);
-  assertNull(res[596].firstMatch("a\x0d\nb"), 1414);
-  assertNull(res[596].firstMatch("ax{85}b"), 1415);
-  assertNull(res[596].firstMatch("a\x0bb     "), 1416);
-  assertNull(res[596].firstMatch("** Failers "), 1417);
-  assertNull(res[596].firstMatch("ax{85}b<bsr_anycrlf>"), 1418);
-  assertNull(res[596].firstMatch("a\x0bb<bsr_anycrlf>"), 1419);
-  assertNull(res[597].firstMatch("a\x0db"), 1420);
-  assertNull(res[597].firstMatch("a\nb"), 1421);
-  assertNull(res[597].firstMatch("a\x0d\nb"), 1422);
-  assertNull(res[597].firstMatch("** Failers"), 1423);
-  assertNull(res[597].firstMatch("ax{85}b"), 1424);
-  assertNull(res[597].firstMatch("a\x0bb     "), 1425);
-  assertNull(res[598].firstMatch("a\x0db"), 1426);
-  assertNull(res[598].firstMatch("a\nb"), 1427);
-  assertNull(res[598].firstMatch("a\x0d\nb"), 1428);
-  assertNull(res[598].firstMatch("ax{85}b"), 1429);
-  assertNull(res[598].firstMatch("a\x0bb     "), 1430);
-  assertNull(res[598].firstMatch("** Failers "), 1431);
-  assertNull(res[598].firstMatch("ax{85}b<bsr_anycrlf>"), 1432);
-  assertNull(res[598].firstMatch("a\x0bb<bsr_anycrlf>"), 1433);
-  assertToStringEquals("QQQx{2029}ABCaXYZ=!bPQR",
-      res[599].firstMatch("QQQx{2029}ABCaXYZ=!bPQR"), 1434);
-  assertNull(res[599].firstMatch("** Failers"), 1435);
-  assertNull(res[599].firstMatch("ax{2029}b"), 1436);
-  assertNull(res[599].firstMatch("a\xe2\x80\xa9b "), 1437);
-  assertNull(res[600].firstMatch("ax{1234}b"), 1438);
-  assertToStringEquals("a\nb", res[600].firstMatch("a\nb "), 1439);
-  assertNull(res[600].firstMatch("** Failers"), 1440);
-  assertNull(res[600].firstMatch("ab  "), 1441);
-  assertToStringEquals("aXb", res[601].firstMatch("aXb"), 1442);
-  assertToStringEquals(
-      "a\nX\nXx{1234}b", res[601].firstMatch("a\nX\nXx{1234}b "), 1443);
-  assertNull(res[601].firstMatch("** Failers"), 1444);
-  assertNull(res[601].firstMatch("ab  "), 1445);
-  assertNull(res[601].firstMatch("x{de}x{de}"), 1446);
-  assertNull(res[601].firstMatch("x{123} "), 1447);
-  assertToStringEquals("X", res[602].firstMatch("Ax{1ec5}ABCXYZ"), 1448);
-  assertNull(
-      res[604].firstMatch("x{c0}x{30f}x{660}x{66c}x{f01}x{1680}<"), 1449);
-  assertNull(res[604].firstMatch("\npx{300}9!\$ < "), 1450);
-  assertNull(res[604].firstMatch("** Failers "), 1451);
-  assertNull(res[604].firstMatch("apx{300}9!\$ < "), 1452);
-  assertNull(res[605].firstMatch("X"), 1453);
-  assertNull(res[605].firstMatch("** Failers "), 1454);
-  assertNull(res[605].firstMatch(""), 1455);
-  assertNull(res[606].firstMatch("9"), 1456);
-  assertNull(res[606].firstMatch("** Failers "), 1457);
-  assertNull(res[606].firstMatch("x{c0}"), 1458);
-  assertNull(res[607].firstMatch("X"), 1459);
-  assertNull(res[607].firstMatch("** Failers "), 1460);
-  assertNull(res[607].firstMatch("x{30f}"), 1461);
-  assertNull(res[608].firstMatch("X"), 1462);
-  assertNull(res[608].firstMatch("** Failers "), 1463);
-  assertNull(res[608].firstMatch("x{660}"), 1464);
-  assertNull(res[609].firstMatch("X"), 1465);
-  assertNull(res[609].firstMatch("** Failers "), 1466);
-  assertNull(res[609].firstMatch("x{66c}"), 1467);
-  assertNull(res[610].firstMatch("X"), 1468);
-  assertNull(res[610].firstMatch("** Failers "), 1469);
-  assertNull(res[610].firstMatch("x{f01}"), 1470);
-  assertNull(res[611].firstMatch("X"), 1471);
-  assertNull(res[611].firstMatch("** Failers "), 1472);
-  assertNull(res[611].firstMatch("x{1680}"), 1473);
-  assertNull(res[612].firstMatch("x{017}"), 1474);
-  assertNull(res[612].firstMatch("x{09f} "), 1475);
-  assertNull(res[612].firstMatch("** Failers"), 1476);
-  assertNull(res[612].firstMatch("x{0600} "), 1477);
-  assertNull(res[613].firstMatch("x{601}"), 1478);
-  assertNull(res[613].firstMatch("** Failers"), 1479);
-  assertNull(res[613].firstMatch("x{09f} "), 1480);
-  assertNull(res[614].firstMatch("x{e0000}"), 1481);
-  assertNull(res[614].firstMatch("** Failers"), 1482);
-  assertNull(res[614].firstMatch("x{09f} "), 1483);
-  assertNull(res[615].firstMatch("x{f8ff}"), 1484);
-  assertNull(res[615].firstMatch("** Failers"), 1485);
-  assertNull(res[615].firstMatch("x{09f} "), 1486);
-  assertNull(res[616].firstMatch("?x{dfff}"), 1487);
-  assertNull(res[616].firstMatch("** Failers"), 1488);
-  assertNull(res[616].firstMatch("x{09f} "), 1489);
-  assertNull(res[617].firstMatch("a"), 1490);
-  assertNull(res[617].firstMatch("** Failers "), 1491);
-  assertNull(res[617].firstMatch("Z"), 1492);
-  assertNull(res[617].firstMatch("x{e000}  "), 1493);
-  assertNull(res[618].firstMatch("x{2b0}"), 1494);
-  assertNull(res[618].firstMatch("** Failers"), 1495);
-  assertNull(res[618].firstMatch("a "), 1496);
-  assertNull(res[619].firstMatch("x{1bb}"), 1497);
-  assertNull(res[619].firstMatch("x{3400}"), 1498);
-  assertNull(res[619].firstMatch("x{3401}"), 1499);
-  assertNull(res[619].firstMatch("x{4d00}"), 1500);
-  assertNull(res[619].firstMatch("x{4db4}"), 1501);
-  assertNull(res[619].firstMatch("x{4db5}     "), 1502);
-  assertNull(res[619].firstMatch("** Failers"), 1503);
-  assertNull(res[619].firstMatch("a "), 1504);
-  assertNull(res[619].firstMatch("x{2b0}"), 1505);
-  assertNull(res[619].firstMatch("x{4db6} "), 1506);
-  assertNull(res[620].firstMatch("x{1c5}"), 1507);
-  assertNull(res[620].firstMatch("** Failers"), 1508);
-  assertNull(res[620].firstMatch("a "), 1509);
-  assertNull(res[620].firstMatch("x{2b0}"), 1510);
-  assertNull(res[621].firstMatch("A"), 1511);
-  assertNull(res[621].firstMatch("** Failers"), 1512);
-  assertNull(res[621].firstMatch("x{2b0}"), 1513);
-  assertNull(res[622].firstMatch("x{903}"), 1514);
-  assertNull(res[622].firstMatch("** Failers"), 1515);
-  assertNull(res[622].firstMatch("X"), 1516);
-  assertNull(res[622].firstMatch("x{300}"), 1517);
-  assertNull(res[622].firstMatch("   "), 1518);
-  assertNull(res[623].firstMatch("x{488}"), 1519);
-  assertNull(res[623].firstMatch("** Failers"), 1520);
-  assertNull(res[623].firstMatch("X"), 1521);
-  assertNull(res[623].firstMatch("x{903}"), 1522);
-  assertNull(res[623].firstMatch("x{300}"), 1523);
-  assertNull(res[624].firstMatch("x{300}"), 1524);
-  assertNull(res[624].firstMatch("** Failers"), 1525);
-  assertNull(res[624].firstMatch("X"), 1526);
-  assertNull(res[624].firstMatch("x{903}"), 1527);
-  assertNull(
-      res[624].firstMatch(
-          "0123456789x{660}x{661}x{662}x{663}x{664}x{665}x{666}x{667}x{668}x{669}x{66a}"),
-      1528);
-  assertNull(
-      res[624].firstMatch(
-          "x{6f0}x{6f1}x{6f2}x{6f3}x{6f4}x{6f5}x{6f6}x{6f7}x{6f8}x{6f9}x{6fa}"),
-      1529);
-  assertNull(
-      res[624].firstMatch(
-          "x{966}x{967}x{968}x{969}x{96a}x{96b}x{96c}x{96d}x{96e}x{96f}x{970}"),
-      1530);
-  assertNull(res[624].firstMatch("** Failers"), 1531);
-  assertNull(res[624].firstMatch("X"), 1532);
-  assertNull(res[625].firstMatch("x{16ee}"), 1533);
-  assertNull(res[625].firstMatch("** Failers"), 1534);
-  assertNull(res[625].firstMatch("X"), 1535);
-  assertNull(res[625].firstMatch("x{966}"), 1536);
-  assertNull(res[626].firstMatch("x{b2}"), 1537);
-  assertNull(res[626].firstMatch("x{b3}"), 1538);
-  assertNull(res[626].firstMatch("** Failers"), 1539);
-  assertNull(res[626].firstMatch("X"), 1540);
-  assertNull(res[626].firstMatch("x{16ee}"), 1541);
-  assertNull(res[627].firstMatch("_"), 1542);
-  assertNull(res[627].firstMatch("x{203f}"), 1543);
-  assertNull(res[627].firstMatch("** Failers"), 1544);
-  assertNull(res[627].firstMatch("X"), 1545);
-  assertNull(res[627].firstMatch("-"), 1546);
-  assertNull(res[627].firstMatch("x{58a}"), 1547);
-  assertNull(res[628].firstMatch("-"), 1548);
-  assertNull(res[628].firstMatch("x{58a}"), 1549);
-  assertNull(res[628].firstMatch("** Failers"), 1550);
-  assertNull(res[628].firstMatch("X"), 1551);
-  assertNull(res[628].firstMatch("x{203f}"), 1552);
-  assertNull(res[629].firstMatch(")"), 1553);
-  assertNull(res[629].firstMatch("]"), 1554);
-  assertNull(res[629].firstMatch("}"), 1555);
-  assertNull(res[629].firstMatch("x{f3b}"), 1556);
-  assertNull(res[629].firstMatch("** Failers"), 1557);
-  assertNull(res[629].firstMatch("X"), 1558);
-  assertNull(res[629].firstMatch("x{203f}"), 1559);
-  assertNull(res[629].firstMatch("("), 1560);
-  assertNull(res[629].firstMatch("["), 1561);
-  assertNull(res[629].firstMatch("{"), 1562);
-  assertNull(res[629].firstMatch("x{f3c}"), 1563);
-  assertNull(res[630].firstMatch("x{bb}"), 1564);
-  assertNull(res[630].firstMatch("x{2019}"), 1565);
-  assertNull(res[630].firstMatch("** Failers"), 1566);
-  assertNull(res[630].firstMatch("X"), 1567);
-  assertNull(res[630].firstMatch("x{203f}"), 1568);
-  assertNull(res[631].firstMatch("x{ab}"), 1569);
-  assertNull(res[631].firstMatch("x{2018}"), 1570);
-  assertNull(res[631].firstMatch("** Failers"), 1571);
-  assertNull(res[631].firstMatch("X"), 1572);
-  assertNull(res[631].firstMatch("x{203f}"), 1573);
-  assertNull(res[632].firstMatch("!"), 1574);
-  assertNull(res[632].firstMatch("x{37e}"), 1575);
-  assertNull(res[632].firstMatch("** Failers"), 1576);
-  assertNull(res[632].firstMatch("X"), 1577);
-  assertNull(res[632].firstMatch("x{203f}"), 1578);
-  assertNull(res[633].firstMatch("("), 1579);
-  assertNull(res[633].firstMatch("["), 1580);
-  assertNull(res[633].firstMatch("{"), 1581);
-  assertNull(res[633].firstMatch("x{f3c}"), 1582);
-  assertNull(res[633].firstMatch("** Failers"), 1583);
-  assertNull(res[633].firstMatch("X"), 1584);
-  assertNull(res[633].firstMatch(")"), 1585);
-  assertNull(res[633].firstMatch("]"), 1586);
-  assertNull(res[633].firstMatch("}"), 1587);
-  assertNull(res[633].firstMatch("x{f3b}"), 1588);
-  assertNull(res[633].firstMatch("\$x{a2}x{a3}x{a4}x{a5}x{a6}"), 1589);
-  assertNull(res[633].firstMatch("x{9f2}"), 1590);
-  assertNull(res[633].firstMatch("** Failers"), 1591);
-  assertNull(res[633].firstMatch("X"), 1592);
-  assertNull(res[633].firstMatch("x{2c2}"), 1593);
-  assertNull(res[634].firstMatch("x{2c2}"), 1594);
-  assertNull(res[634].firstMatch("** Failers"), 1595);
-  assertNull(res[634].firstMatch("X"), 1596);
-  assertNull(res[634].firstMatch("x{9f2}"), 1597);
-  assertNull(res[634].firstMatch("+<|~x{ac}x{2044}"), 1598);
-  assertNull(res[634].firstMatch("** Failers"), 1599);
-  assertNull(res[634].firstMatch("X"), 1600);
-  assertNull(res[634].firstMatch("x{9f2}"), 1601);
-  assertNull(res[635].firstMatch("x{a6}"), 1602);
-  assertNull(res[635].firstMatch("x{482} "), 1603);
-  assertNull(res[635].firstMatch("** Failers"), 1604);
-  assertNull(res[635].firstMatch("X"), 1605);
-  assertNull(res[635].firstMatch("x{9f2}"), 1606);
-  assertNull(res[636].firstMatch("x{2028}"), 1607);
-  assertNull(res[636].firstMatch("** Failers"), 1608);
-  assertNull(res[636].firstMatch("X"), 1609);
-  assertNull(res[636].firstMatch("x{2029}"), 1610);
-  assertNull(res[637].firstMatch("x{2029}"), 1611);
-  assertNull(res[637].firstMatch("** Failers"), 1612);
-  assertNull(res[637].firstMatch("X"), 1613);
-  assertNull(res[637].firstMatch("x{2028}"), 1614);
-  assertNull(res[638].firstMatch("\\ \\"), 1615);
-  assertNull(res[638].firstMatch("x{a0}"), 1616);
-  assertNull(res[638].firstMatch("x{1680}"), 1617);
-  assertNull(res[638].firstMatch("x{180e}"), 1618);
-  assertNull(res[638].firstMatch("x{2000}"), 1619);
-  assertNull(res[638].firstMatch("x{2001}     "), 1620);
-  assertNull(res[638].firstMatch("** Failers"), 1621);
-  assertNull(res[638].firstMatch("x{2028}"), 1622);
-  assertNull(res[638].firstMatch("x{200d} "), 1623);
-  assertNull(res[638].firstMatch("  x{660}x{661}x{662}ABC"), 1624);
-  assertNull(res[638].firstMatch("  x{660}x{661}x{662}ABC"), 1625);
-  assertNull(res[639].firstMatch("  x{660}x{661}x{662}ABC"), 1626);
-  assertNull(res[640].firstMatch("  x{660}x{661}x{662}ABC"), 1627);
-  assertNull(res[641].firstMatch("  x{660}x{661}x{662}ABC"), 1628);
-  assertNull(res[642].firstMatch("  x{660}x{661}x{662}ABC"), 1629);
-  assertNull(res[643].firstMatch("  x{660}x{661}x{662}ABC"), 1630);
-  assertNull(res[644].firstMatch("  x{660}x{661}x{662}ABC"), 1631);
-  assertNull(res[645].firstMatch("  x{660}x{661}x{662}ABC"), 1632);
-  assertNull(res[646].firstMatch("  x{660}x{661}x{662}ABC"), 1633);
-  assertNull(res[647].firstMatch("  x{660}x{661}x{662}ABC"), 1634);
-  assertNull(res[647].firstMatch("  x{660}x{661}x{662}ABC"), 1635);
-  assertNull(res[647].firstMatch("  x{660}x{661}x{662}ABC"), 1636);
-  assertNull(res[647].firstMatch("  ** Failers"), 1637);
-  assertNull(res[647].firstMatch("  x{660}x{661}x{662}ABC"), 1638);
-  assertNull(res[648].firstMatch("A"), 1639);
-  assertNull(res[648].firstMatch("ax{10a0}B "), 1640);
-  assertNull(res[648].firstMatch("** Failers "), 1641);
-  assertNull(res[648].firstMatch("a"), 1642);
-  assertNull(res[648].firstMatch("x{1d00}  "), 1643);
-  assertNull(res[649].firstMatch("1234"), 1644);
-  assertNull(res[649].firstMatch("** Failers"), 1645);
-  assertNull(res[649].firstMatch("ABC "), 1646);
-  assertNull(res[650].firstMatch("1234"), 1647);
-  assertNull(res[650].firstMatch("** Failers"), 1648);
-  assertNull(res[650].firstMatch("ABC "), 1649);
-  assertNull(res[650].firstMatch("A2XYZ"), 1650);
-  assertNull(res[650].firstMatch("123A5XYZPQR"), 1651);
-  assertNull(res[650].firstMatch("ABAx{660}XYZpqr"), 1652);
-  assertNull(res[650].firstMatch("** Failers"), 1653);
-  assertNull(res[650].firstMatch("AXYZ"), 1654);
-  assertNull(res[650].firstMatch("XYZ     "), 1655);
-  assertNull(res[650].firstMatch("1XYZ"), 1656);
-  assertNull(res[650].firstMatch("AB=XYZ.. "), 1657);
-  assertNull(res[650].firstMatch("XYZ "), 1658);
-  assertNull(res[650].firstMatch("** Failers"), 1659);
-  assertNull(res[650].firstMatch("WXYZ "), 1660);
-  assertNull(res[655].firstMatch("1234"), 1661);
-  assertNull(res[655].firstMatch("1234"), 1662);
-  assertNull(res[655].firstMatch("12-34"), 1663);
-  assertToStringEquals("{", res[655].firstMatch("12+x{661}-34  "), 1664);
-  assertNull(res[655].firstMatch("** Failers"), 1665);
-  assertToStringEquals("d", res[655].firstMatch("abcd  "), 1666);
-  assertToStringEquals("d", res[656].firstMatch("abcd"), 1667);
-  assertNull(res[656].firstMatch("** Failers"), 1668);
-  assertNull(res[656].firstMatch("1234"), 1669);
-  assertNull(
-      res[657].firstMatch(
-          "11111111111111111111111111111111111111111111111111111111111111111111111"),
-      1670);
-  assertToStringEquals(
-      "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
-      res[657].firstMatch(
-          "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"),
-      1671);
-  assertToStringEquals(" ", res[657].firstMatch(" "), 1672);
-  assertNull(
-      res[657].firstMatch(
-          "11111111111111111111111111111111111111111111111111111111111111111111111"),
-      1673);
-  assertToStringEquals(
-      "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
-      res[657].firstMatch(
-          "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"),
-      1674);
-  assertNull(
-      res[658].firstMatch(
-          "11111111111111111111111111111111111111111111111111111111111111111111111"),
-      1675);
-  assertToStringEquals(
-      "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
-      res[658].firstMatch(
-          "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"),
-      1676);
-  assertNull(
-      res[659].firstMatch(
-          "11111111111111111111111111111111111111111111111111111111111111111111111"),
-      1677);
-  assertNull(
-      res[659].firstMatch(
-          "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"),
-      1678);
-  assertNull(
-      res[660].firstMatch(
-          "11111111111111111111111111111111111111111111111111111111111111111111111"),
-      1679);
-  assertToStringEquals(
-      "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
-      res[660].firstMatch(
-          "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"),
-      1680);
-  assertNull(res[661].firstMatch("a"), 1681);
-  assertNull(res[661].firstMatch("A "), 1682);
-  assertNull(res[662].firstMatch("a"), 1683);
-  assertNull(res[662].firstMatch("A "), 1684);
-  assertNull(res[663].firstMatch("A"), 1685);
-  assertNull(res[663].firstMatch("aZ"), 1686);
-  assertNull(res[663].firstMatch("** Failers"), 1687);
-  assertNull(res[663].firstMatch("abc   "), 1688);
-  assertNull(res[664].firstMatch("A"), 1689);
-  assertNull(res[664].firstMatch("aZ"), 1690);
-  assertNull(res[664].firstMatch("** Failers"), 1691);
-  assertNull(res[664].firstMatch("abc   "), 1692);
-  assertNull(res[665].firstMatch("a"), 1693);
-  assertNull(res[665].firstMatch("Az"), 1694);
-  assertNull(res[665].firstMatch("** Failers"), 1695);
-  assertNull(res[665].firstMatch("ABC   "), 1696);
-  assertNull(res[666].firstMatch("a"), 1697);
-  assertNull(res[666].firstMatch("Az"), 1698);
-  assertNull(res[666].firstMatch("** Failers"), 1699);
-  assertNull(res[666].firstMatch("ABC   "), 1700);
-  assertNull(res[666].firstMatch("x{c0}"), 1701);
-  assertNull(res[666].firstMatch("x{e0} "), 1702);
-  assertNull(res[666].firstMatch("x{c0}"), 1703);
-  assertNull(res[666].firstMatch("x{e0} "), 1704);
-  assertNull(res[666].firstMatch("Ax{391}x{10427}x{ff3a}x{1fb0}"), 1705);
-  assertNull(res[666].firstMatch("** Failers"), 1706);
-  assertNull(res[666].firstMatch("ax{391}x{10427}x{ff3a}x{1fb0}   "), 1707);
-  assertNull(res[666].firstMatch("Ax{3b1}x{10427}x{ff3a}x{1fb0}"), 1708);
-  assertNull(res[666].firstMatch("Ax{391}x{1044F}x{ff3a}x{1fb0}"), 1709);
-  assertNull(res[666].firstMatch("Ax{391}x{10427}x{ff5a}x{1fb0}"), 1710);
-  assertNull(res[666].firstMatch("Ax{391}x{10427}x{ff3a}x{1fb8}"), 1711);
-  assertNull(res[666].firstMatch("Ax{391}x{10427}x{ff3a}x{1fb0}"), 1712);
-  assertNull(res[666].firstMatch("ax{391}x{10427}x{ff3a}x{1fb0}   "), 1713);
-  assertNull(res[666].firstMatch("Ax{3b1}x{10427}x{ff3a}x{1fb0}"), 1714);
-  assertNull(res[666].firstMatch("Ax{391}x{1044F}x{ff3a}x{1fb0}"), 1715);
-  assertNull(res[666].firstMatch("Ax{391}x{10427}x{ff5a}x{1fb0}"), 1716);
-  assertNull(res[666].firstMatch("Ax{391}x{10427}x{ff3a}x{1fb8}"), 1717);
-  assertNull(res[666].firstMatch("x{391}x{3b1}x{3b1}x{3b1}x{391}"), 1718);
-  assertNull(res[666].firstMatch("x{391}x{3b1}x{3b1}x{3b1}x{391}X"), 1719);
-  assertNull(res[666].firstMatch("x{391}x{3b1}x{3b1}x{3b1}x{391}X"), 1720);
-  assertNull(res[666].firstMatch("x{391}"), 1721);
-  assertNull(res[666].firstMatch("x{ff3a}"), 1722);
-  assertNull(res[666].firstMatch("x{3b1}"), 1723);
-  assertNull(res[666].firstMatch("x{ff5a}   "), 1724);
-  assertNull(res[666].firstMatch("x{c0}"), 1725);
-  assertNull(res[666].firstMatch("x{e0} "), 1726);
-  assertNull(res[666].firstMatch("x{104}"), 1727);
-  assertNull(res[666].firstMatch("x{105}"), 1728);
-  assertNull(res[666].firstMatch("x{109}  "), 1729);
-  assertNull(res[666].firstMatch("** Failers"), 1730);
-  assertNull(res[666].firstMatch("x{100}"), 1731);
-  assertNull(res[666].firstMatch("x{10a} "), 1732);
-  assertNull(res[666].firstMatch("Z"), 1733);
-  assertNull(res[666].firstMatch("z"), 1734);
-  assertNull(res[666].firstMatch("x{39c}"), 1735);
-  assertNull(res[666].firstMatch("x{178}"), 1736);
-  assertNull(res[666].firstMatch("|"), 1737);
-  assertNull(res[666].firstMatch("x{80}"), 1738);
-  assertNull(res[666].firstMatch("x{ff}"), 1739);
-  assertNull(res[666].firstMatch("x{100}"), 1740);
-  assertNull(res[666].firstMatch("x{101} "), 1741);
-  assertNull(res[666].firstMatch("** Failers"), 1742);
-  assertNull(res[666].firstMatch("x{102}"), 1743);
-  assertNull(res[666].firstMatch("Y"), 1744);
-  assertNull(res[666].firstMatch("y           "), 1745);
-  assertNull(res[667].firstMatch("A"), 1746);
-  assertNull(res[667].firstMatch("Ax{300}BC "), 1747);
-  assertNull(res[667].firstMatch("Ax{300}x{301}x{302}BC "), 1748);
-  assertNull(res[667].firstMatch("*** Failers"), 1749);
-  assertNull(res[667].firstMatch("x{300}  "), 1750);
-  assertToStringEquals("X", res[668].firstMatch("X123"), 1751);
-  assertNull(res[668].firstMatch("*** Failers"), 1752);
-  assertNull(res[668].firstMatch("AXYZ"), 1753);
-  assertNull(res[669].firstMatch("Ax{300}x{301}x{302}BCAx{300}x{301} "), 1754);
-  assertNull(res[669].firstMatch("Ax{300}x{301}x{302}BCAx{300}x{301}C "), 1755);
-  assertNull(res[670].firstMatch("Ax{300}x{301}x{302}BCAx{300}x{301} "), 1756);
-  assertNull(res[670].firstMatch("Ax{300}x{301}x{302}BCAx{300}x{301}C "), 1757);
-  assertToStringEquals(
-      "A,,A", res[671].firstMatch("Ax{300}x{301}x{302}BCAx{300}x{301} "), 1758);
-  assertToStringEquals("A,,A",
-      res[671].firstMatch("Ax{300}x{301}x{302}BCAx{300}x{301}C "), 1759);
-  assertToStringEquals(
-      "A,,A", res[672].firstMatch("Ax{300}x{301}x{302}BCAx{300}x{301} "), 1760);
-  assertToStringEquals("A,,A",
-      res[672].firstMatch("Ax{300}x{301}x{302}BCAx{300}x{301}C "), 1761);
-  assertNull(res[673].firstMatch("*** Failers"), 1762);
-  assertNull(res[673].firstMatch("Ax{300}x{301}x{302}"), 1763);
-  assertNull(res[674].firstMatch("Ax{300}x{301}Bx{300}X"), 1764);
-  assertNull(res[674].firstMatch("Ax{300}x{301}Bx{300}Cx{300}x{301}"), 1765);
-  assertNull(res[674].firstMatch("Ax{300}x{301}Bx{300}Cx{300}x{301}X"), 1766);
-  assertNull(
-      res[674].firstMatch("Ax{300}x{301}Bx{300}Cx{300}x{301}DAx{300}X"), 1767);
-  assertNull(res[675].firstMatch("Ax{300}x{301}Bx{300}X"), 1768);
-  assertNull(res[675].firstMatch("Ax{300}x{301}Bx{300}Cx{300}x{301}"), 1769);
-  assertNull(res[675].firstMatch("Ax{300}x{301}Bx{300}Cx{300}x{301}X"), 1770);
-  assertNull(
-      res[675].firstMatch("Ax{300}x{301}Bx{300}Cx{300}x{301}DAx{300}X"), 1771);
-  assertNull(res[675].firstMatch("x{2e81}x{3007}x{2f804}x{31a0}"), 1772);
-  assertNull(res[675].firstMatch("** Failers"), 1773);
-  assertNull(res[675].firstMatch("x{2e7f}  "), 1774);
-  assertNull(res[675].firstMatch("x{3105}"), 1775);
-  assertNull(res[675].firstMatch("** Failers"), 1776);
-  assertNull(res[675].firstMatch("x{30ff}  "), 1777);
-  assertNull(res[676].firstMatch("x{06e9}"), 1778);
-  assertNull(res[676].firstMatch("x{060b}"), 1779);
-  assertNull(res[676].firstMatch("** Failers"), 1780);
-  assertNull(res[676].firstMatch("Xx{06e9}   "), 1781);
-  assertNull(res[677].firstMatch("x{2f800}"), 1782);
-  assertNull(res[677].firstMatch("** Failers"), 1783);
-  assertNull(res[677].firstMatch("x{a014}"), 1784);
-  assertNull(res[677].firstMatch("x{a4c6}   "), 1785);
-  assertNull(res[678].firstMatch("AXYZ"), 1786);
-  assertNull(res[678].firstMatch("x{1234}XYZ "), 1787);
-  assertNull(res[678].firstMatch("** Failers"), 1788);
-  assertNull(res[678].firstMatch("X  "), 1789);
-  assertNull(res[679].firstMatch("** Failers"), 1790);
-  assertNull(res[679].firstMatch("AX"), 1791);
-  assertNull(res[680].firstMatch("XYZ"), 1792);
-  assertNull(res[680].firstMatch("AXYZ"), 1793);
-  assertNull(res[680].firstMatch("x{1234}XYZ "), 1794);
-  assertNull(res[680].firstMatch("** Failers"), 1795);
-  assertNull(res[680].firstMatch("ABXYZ   "), 1796);
-  assertNull(res[681].firstMatch("XYZ"), 1797);
-  assertNull(res[681].firstMatch("** Failers"), 1798);
-  assertNull(res[681].firstMatch("AXYZ"), 1799);
-  assertNull(res[681].firstMatch("x{1234}XYZ "), 1800);
-  assertNull(res[681].firstMatch("ABXYZ   "), 1801);
-  assertNull(res[681].firstMatch("AXYZ"), 1802);
-  assertNull(res[681].firstMatch("x{1234}XYZ"), 1803);
-  assertNull(res[681].firstMatch("Ax{1234}XYZ"), 1804);
-  assertNull(res[681].firstMatch("** Failers"), 1805);
-  assertNull(res[681].firstMatch("XYZ"), 1806);
-  assertNull(res[681].firstMatch("** Failers"), 1807);
-  assertNull(res[681].firstMatch("AXYZ"), 1808);
-  assertNull(res[681].firstMatch("x{1234}XYZ"), 1809);
-  assertNull(res[681].firstMatch("Ax{1234}XYZ"), 1810);
-  assertNull(res[681].firstMatch("XYZ"), 1811);
-  assertNull(res[682].firstMatch("XYZ"), 1812);
-  assertNull(res[682].firstMatch("AXYZ"), 1813);
-  assertNull(res[682].firstMatch("x{1234}XYZ"), 1814);
-  assertNull(res[682].firstMatch("Ax{1234}XYZ"), 1815);
-  assertNull(res[682].firstMatch("** Failers"), 1816);
-  assertNull(res[683].firstMatch("XYZ"), 1817);
-  assertNull(res[683].firstMatch("** Failers"), 1818);
-  assertNull(res[683].firstMatch("AXYZ"), 1819);
-  assertNull(res[683].firstMatch("x{1234}XYZ"), 1820);
-  assertNull(res[683].firstMatch("Ax{1234}XYZ"), 1821);
-  assertToStringEquals("AX", res[684].firstMatch("AXYZ"), 1822);
-  assertNull(res[684].firstMatch("x{1234}XYZ "), 1823);
-  assertNull(res[684].firstMatch("** Failers"), 1824);
-  assertNull(res[684].firstMatch("X  "), 1825);
-  assertNull(res[685].firstMatch("** Failers"), 1826);
-  assertToStringEquals("AX", res[685].firstMatch("AX"), 1827);
-  assertToStringEquals("X", res[686].firstMatch("XYZ"), 1828);
-  assertToStringEquals("AX", res[686].firstMatch("AXYZ"), 1829);
-  assertNull(res[686].firstMatch("x{1234}XYZ "), 1830);
-  assertNull(res[686].firstMatch("** Failers"), 1831);
-  assertNull(res[686].firstMatch("ABXYZ   "), 1832);
-  assertToStringEquals("X", res[687].firstMatch("XYZ"), 1833);
-  assertNull(res[687].firstMatch("** Failers"), 1834);
-  assertToStringEquals("AX", res[687].firstMatch("AXYZ"), 1835);
-  assertNull(res[687].firstMatch("x{1234}XYZ "), 1836);
-  assertNull(res[687].firstMatch("ABXYZ   "), 1837);
-  assertToStringEquals("AX", res[688].firstMatch("AXYZ"), 1838);
-  assertNull(res[688].firstMatch("x{1234}XYZ"), 1839);
-  assertNull(res[688].firstMatch("Ax{1234}XYZ"), 1840);
-  assertNull(res[688].firstMatch("** Failers"), 1841);
-  assertNull(res[688].firstMatch("XYZ"), 1842);
-  assertNull(res[689].firstMatch("** Failers"), 1843);
-  assertToStringEquals("AX", res[689].firstMatch("AXYZ"), 1844);
-  assertNull(res[689].firstMatch("x{1234}XYZ"), 1845);
-  assertNull(res[689].firstMatch("Ax{1234}XYZ"), 1846);
-  assertNull(res[689].firstMatch("XYZ"), 1847);
-  assertToStringEquals("X", res[690].firstMatch("XYZ"), 1848);
-  assertToStringEquals("AX", res[690].firstMatch("AXYZ"), 1849);
-  assertNull(res[690].firstMatch("x{1234}XYZ"), 1850);
-  assertNull(res[690].firstMatch("Ax{1234}XYZ"), 1851);
-  assertNull(res[690].firstMatch("** Failers"), 1852);
-  assertToStringEquals("X", res[691].firstMatch("XYZ"), 1853);
-  assertNull(res[691].firstMatch("** Failers"), 1854);
-  assertToStringEquals("AX", res[691].firstMatch("AXYZ"), 1855);
-  assertNull(res[691].firstMatch("x{1234}XYZ"), 1856);
-  assertNull(res[691].firstMatch("Ax{1234}XYZ"), 1857);
-  assertNull(res[692].firstMatch("abcdefgh"), 1858);
-  assertNull(res[692].firstMatch("x{1234}\n\x0dx{3456}xyz "), 1859);
-  assertNull(res[693].firstMatch("abcdefgh"), 1860);
-  assertNull(res[693].firstMatch("x{1234}\n\x0dx{3456}xyz "), 1861);
-  assertNull(res[694].firstMatch("** Failers"), 1862);
-  assertNull(res[694].firstMatch("abcdefgh"), 1863);
-  assertNull(res[694].firstMatch("x{1234}\n\x0dx{3456}xyz "), 1864);
-  assertNull(res[695].firstMatch(" AXY"), 1865);
-  assertNull(res[695].firstMatch(" aXY"), 1866);
-  assertNull(res[695].firstMatch(" x{1c5}XY"), 1867);
-  assertNull(res[695].firstMatch(" ** Failers"), 1868);
-  assertNull(res[695].firstMatch(" x{1bb}XY"), 1869);
-  assertNull(res[695].firstMatch(" x{2b0}XY"), 1870);
-  assertNull(res[695].firstMatch(" !XY      "), 1871);
-  assertNull(res[696].firstMatch(" AXY"), 1872);
-  assertNull(res[696].firstMatch(" aXY"), 1873);
-  assertNull(res[696].firstMatch(" x{1c5}XY"), 1874);
-  assertNull(res[696].firstMatch(" ** Failers"), 1875);
-  assertNull(res[696].firstMatch(" x{1bb}XY"), 1876);
-  assertNull(res[696].firstMatch(" x{2b0}XY"), 1877);
-  assertNull(res[696].firstMatch(" !XY      "), 1878);
-  assertNull(res[696].firstMatch(" AXY"), 1879);
-  assertNull(res[696].firstMatch(" aXY"), 1880);
-  assertNull(res[696].firstMatch(" AbcdeXyz "), 1881);
-  assertNull(res[696].firstMatch(" x{1c5}AbXY"), 1882);
-  assertNull(res[696].firstMatch(" abcDEXypqreXlmn "), 1883);
-  assertNull(res[696].firstMatch(" ** Failers"), 1884);
-  assertNull(res[696].firstMatch(" x{1bb}XY"), 1885);
-  assertNull(res[696].firstMatch(" x{2b0}XY"), 1886);
-  assertNull(res[696].firstMatch(" !XY      "), 1887);
-  assertNull(res[697].firstMatch(" AXY"), 1888);
-  assertNull(res[697].firstMatch(" aXY"), 1889);
-  assertNull(res[697].firstMatch(" AbcdeXyz "), 1890);
-  assertNull(res[697].firstMatch(" x{1c5}AbXY"), 1891);
-  assertNull(res[697].firstMatch(" abcDEXypqreXlmn "), 1892);
-  assertNull(res[697].firstMatch(" ** Failers"), 1893);
-  assertNull(res[697].firstMatch(" x{1bb}XY"), 1894);
-  assertNull(res[697].firstMatch(" x{2b0}XY"), 1895);
-  assertNull(res[697].firstMatch(" !XY      "), 1896);
-  assertNull(res[697].firstMatch(" AXY"), 1897);
-  assertNull(res[697].firstMatch(" aXY"), 1898);
-  assertNull(res[697].firstMatch(" AbcdeXyz "), 1899);
-  assertNull(res[697].firstMatch(" x{1c5}AbXY"), 1900);
-  assertNull(res[697].firstMatch(" abcDEXypqreXlmn "), 1901);
-  assertNull(res[697].firstMatch(" ** Failers"), 1902);
-  assertNull(res[697].firstMatch(" x{1bb}XY"), 1903);
-  assertNull(res[697].firstMatch(" x{2b0}XY"), 1904);
-  assertNull(res[697].firstMatch(" !XY      "), 1905);
-  assertNull(res[698].firstMatch(" AXY"), 1906);
-  assertNull(res[698].firstMatch(" aXY"), 1907);
-  assertNull(res[698].firstMatch(" AbcdeXyz "), 1908);
-  assertNull(res[698].firstMatch(" x{1c5}AbXY"), 1909);
-  assertNull(res[698].firstMatch(" abcDEXypqreXlmn "), 1910);
-  assertNull(res[698].firstMatch(" ** Failers"), 1911);
-  assertNull(res[698].firstMatch(" x{1bb}XY"), 1912);
-  assertNull(res[698].firstMatch(" x{2b0}XY"), 1913);
-  assertNull(res[698].firstMatch(" !XY      "), 1914);
-  assertNull(res[699].firstMatch(" !XY"), 1915);
-  assertNull(res[699].firstMatch(" x{1bb}XY"), 1916);
-  assertNull(res[699].firstMatch(" x{2b0}XY"), 1917);
-  assertNull(res[699].firstMatch(" ** Failers"), 1918);
-  assertNull(res[699].firstMatch(" x{1c5}XY"), 1919);
-  assertNull(res[699].firstMatch(" AXY      "), 1920);
-  assertNull(res[700].firstMatch(" !XY"), 1921);
-  assertNull(res[700].firstMatch(" x{1bb}XY"), 1922);
-  assertNull(res[700].firstMatch(" x{2b0}XY"), 1923);
-  assertNull(res[700].firstMatch(" ** Failers"), 1924);
-  assertNull(res[700].firstMatch(" x{1c5}XY"), 1925);
-  assertNull(res[700].firstMatch(" AXY      "), 1926);
-  assertNull(res[701].firstMatch("\xa0!"), 1927);
-  assertNull(res[701].firstMatch("AabcabcYZ    "), 1928);
-  assertToStringEquals("L=abcX,L=abc,abc", res[702].firstMatch("L=abcX"), 1929);
-  assertNull(res[702].firstMatch("x{c0}"), 1930);
-  assertNull(res[702].firstMatch("x{e0} "), 1931);
-  assertNull(res[702].firstMatch("x{c0}"), 1932);
-  assertNull(res[702].firstMatch("x{e0} "), 1933);
-  assertNull(res[703].firstMatch("x{1b00}x{12000}x{7c0}x{a840}x{10900}"), 1934);
-  assertNull(res[706].firstMatch("123abcdefg"), 1935);
-  assertNull(res[706].firstMatch("123abc\xc4\xc5zz"), 1936);
-  assertNull(res[710].firstMatch("A\x80"), 1937);
-  assertNull(res[725].firstMatch("x{60e} "), 1938);
-  assertNull(res[725].firstMatch("x{656} "), 1939);
-  assertNull(res[725].firstMatch("x{657} "), 1940);
-  assertNull(res[725].firstMatch("x{658} "), 1941);
-  assertNull(res[725].firstMatch("x{659} "), 1942);
-  assertNull(res[725].firstMatch("x{65a} "), 1943);
-  assertNull(res[725].firstMatch("x{65b} "), 1944);
-  assertNull(res[725].firstMatch("x{65c} "), 1945);
-  assertNull(res[725].firstMatch("x{65d} "), 1946);
-  assertNull(res[725].firstMatch("x{65e} "), 1947);
-  assertNull(res[725].firstMatch("x{66a} "), 1948);
-  assertNull(res[725].firstMatch("x{6e9} "), 1949);
-  assertNull(res[725].firstMatch("x{6ef}"), 1950);
-  assertNull(res[725].firstMatch("x{6fa}  "), 1951);
-  assertNull(res[725].firstMatch("** Failers"), 1952);
-  assertNull(res[725].firstMatch("x{600}"), 1953);
-  assertNull(res[725].firstMatch("x{650}"), 1954);
-  assertNull(res[725].firstMatch("x{651}  "), 1955);
-  assertNull(res[725].firstMatch("x{652}  "), 1956);
-  assertNull(res[725].firstMatch("x{653}  "), 1957);
-  assertNull(res[725].firstMatch("x{654} "), 1958);
-  assertNull(res[725].firstMatch("x{655} "), 1959);
-  assertNull(res[725].firstMatch("x{65f}  "), 1960);
-  assertNull(res[726].firstMatch("x{1d2b} "), 1961);
-  assertNull(res[727].firstMatch("x{589}"), 1962);
-  assertNull(res[727].firstMatch("x{60c}"), 1963);
-  assertNull(res[727].firstMatch("x{61f}  "), 1964);
-  assertNull(res[727].firstMatch("x{964}"), 1965);
-  assertNull(res[727].firstMatch("x{965}  "), 1966);
-  assertNull(res[727].firstMatch("x{970}  "), 1967);
-  assertNull(res[728].firstMatch("x{64b}"), 1968);
-  assertNull(res[728].firstMatch("x{654}"), 1969);
-  assertNull(res[728].firstMatch("x{655}"), 1970);
-  assertNull(res[728].firstMatch("x{200c} "), 1971);
-  assertNull(res[728].firstMatch("** Failers"), 1972);
-  assertNull(res[728].firstMatch("x{64a}"), 1973);
-  assertNull(res[728].firstMatch("x{656}     "), 1974);
-  assertNull(res[729].firstMatch("x{10450}"), 1975);
-  assertNull(res[729].firstMatch("x{1047f}"), 1976);
-  assertNull(res[730].firstMatch("x{10400}"), 1977);
-  assertNull(res[730].firstMatch("x{1044f}"), 1978);
-  assertNull(res[731].firstMatch("x{10480}"), 1979);
-  assertNull(res[731].firstMatch("x{1049d}"), 1980);
-  assertNull(res[731].firstMatch("x{104a0}"), 1981);
-  assertNull(res[731].firstMatch("x{104a9}"), 1982);
-  assertNull(res[731].firstMatch("** Failers"), 1983);
-  assertNull(res[731].firstMatch("x{1049e}"), 1984);
-  assertNull(res[731].firstMatch("x{1049f}"), 1985);
-  assertNull(res[731].firstMatch("x{104aa}           "), 1986);
-  assertNull(res[731].firstMatch("\xe2\x80\xa8\xe2\x80\xa8"), 1987);
-  assertNull(res[731].firstMatch("x{2028}x{2028}x{2028}"), 1988);
-  assertNull(res[732].firstMatch("x{c0}x{e0}x{116}x{117}"), 1989);
-  assertNull(res[732].firstMatch("x{c0}x{e0}x{116}x{117}"), 1990);
-  assertNull(
-      res[733].firstMatch(
-          "x{102A4}x{AA52}x{A91D}x{1C46}x{10283}x{1092E}x{1C6B}x{A93B}x{A8BF}x{1BA0}x{A50A}===="),
-      1991);
-  assertNull(res[733].firstMatch("x{a77d}x{1d79}"), 1992);
-  assertNull(res[733].firstMatch("x{1d79}x{a77d} "), 1993);
-  assertNull(res[733].firstMatch("x{a77d}x{1d79}"), 1994);
-  assertNull(res[733].firstMatch("** Failers "), 1995);
-  assertNull(res[733].firstMatch("x{1d79}x{a77d} "), 1996);
-  assertToStringEquals("AA,A", res[734].firstMatch("AA"), 1997);
-  assertToStringEquals("Aa,A", res[734].firstMatch("Aa"), 1998);
-  assertToStringEquals("aa,a", res[734].firstMatch("aa"), 1999);
-  assertToStringEquals("aA,a", res[734].firstMatch("aA"), 2000);
-  assertNull(res[734].firstMatch("x{de}x{de}"), 2001);
-  assertNull(res[734].firstMatch("x{de}x{fe}"), 2002);
-  assertNull(res[734].firstMatch("x{fe}x{fe}"), 2003);
-  assertNull(res[734].firstMatch("x{fe}x{de}"), 2004);
-  assertNull(res[734].firstMatch("x{10a}x{10a}"), 2005);
-  assertNull(res[734].firstMatch("x{10a}x{10b}"), 2006);
-  assertNull(res[734].firstMatch("x{10b}x{10b}"), 2007);
-  assertNull(res[734].firstMatch("x{10b}x{10a}"), 2008);
-  assertToStringEquals("abc", res[736].firstMatch("abc"), 2009);
-  assertToStringEquals("abc", res[737].firstMatch("abc"), 2010);
-  assertToStringEquals("abbbbc", res[737].firstMatch("abbbbc"), 2011);
-  assertToStringEquals("ac", res[737].firstMatch("ac"), 2012);
-  assertToStringEquals("abc", res[738].firstMatch("abc"), 2013);
-  assertToStringEquals("abbbbbbc", res[738].firstMatch("abbbbbbc"), 2014);
-  assertNull(res[738].firstMatch("*** Failers "), 2015);
-  assertNull(res[738].firstMatch("ac"), 2016);
-  assertNull(res[738].firstMatch("ab"), 2017);
-  assertToStringEquals("a", res[739].firstMatch("a"), 2018);
-  assertToStringEquals(
-      "aaaaaaaaaaaaaaaaa", res[739].firstMatch("aaaaaaaaaaaaaaaaa"), 2019);
-  assertToStringEquals("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
-      res[739].firstMatch("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa "), 2020);
-  assertToStringEquals("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
-      res[739].firstMatch("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaF "), 2021);
-  assertToStringEquals("a,a", res[740].firstMatch("a"), 2022);
-  assertToStringEquals("a,a", res[740].firstMatch("abcd"), 2023);
-  assertToStringEquals("a,a", res[740].firstMatch("african"), 2024);
-  assertToStringEquals("abc", res[741].firstMatch("abcdef"), 2025);
-  assertNull(res[741].firstMatch("*** Failers"), 2026);
-  assertNull(res[741].firstMatch("xyzabc"), 2027);
-  assertNull(res[741].firstMatch("xyz\nabc    "), 2028);
-  assertToStringEquals("abc", res[742].firstMatch("abcdef"), 2029);
-  assertToStringEquals("abc", res[742].firstMatch("xyz\nabc    "), 2030);
-  assertNull(res[742].firstMatch("*** Failers"), 2031);
-  assertNull(res[742].firstMatch("xyzabc"), 2032);
-  assertNull(res[743].firstMatch("abcdef"), 2033);
-  assertNull(res[743].firstMatch("*** Failers"), 2034);
-  assertNull(res[743].firstMatch("xyzabc"), 2035);
-  assertNull(res[743].firstMatch("xyz\nabc    "), 2036);
-  assertNull(res[744].firstMatch("abcdef"), 2037);
-  assertNull(res[744].firstMatch("*** Failers"), 2038);
-  assertNull(res[744].firstMatch("xyzabc"), 2039);
-  assertNull(res[744].firstMatch("xyz\nabc    "), 2040);
-  assertNull(res[745].firstMatch("abcdef"), 2041);
-  assertNull(res[745].firstMatch("xyzabc>3"), 2042);
-  assertNull(res[745].firstMatch("*** Failers"), 2043);
-  assertNull(res[745].firstMatch("xyzabc    "), 2044);
-  assertNull(res[745].firstMatch("xyzabc>2 "), 2045);
-  assertToStringEquals("x9yzz", res[746].firstMatch("x9yzz"), 2046);
-  assertToStringEquals("x0y+z", res[746].firstMatch("x0y+z"), 2047);
-  assertNull(res[746].firstMatch("*** Failers"), 2048);
-  assertNull(res[746].firstMatch("xyz"), 2049);
-  assertNull(res[746].firstMatch("xxy0z     "), 2050);
-  assertToStringEquals("x yzz", res[747].firstMatch("x yzz"), 2051);
-  assertToStringEquals("x y+z", res[747].firstMatch("x y+z"), 2052);
-  assertNull(res[747].firstMatch("*** Failers"), 2053);
-  assertNull(res[747].firstMatch("xyz"), 2054);
-  assertNull(res[747].firstMatch("xxyyz"), 2055);
-  assertToStringEquals("xxy+z", res[748].firstMatch("xxy+z"), 2056);
-  assertNull(res[748].firstMatch("*** Failers"), 2057);
-  assertNull(res[748].firstMatch("xxy0z"), 2058);
-  assertNull(res[748].firstMatch("x+y+z         "), 2059);
-  assertToStringEquals("x+y", res[749].firstMatch("x+y"), 2060);
-  assertToStringEquals("x-y", res[749].firstMatch("x-y"), 2061);
-  assertNull(res[749].firstMatch("*** Failers"), 2062);
-  assertNull(res[749].firstMatch("x\ny"), 2063);
-  assertToStringEquals("x+y", res[750].firstMatch("x+y"), 2064);
-  assertToStringEquals("x-y", res[750].firstMatch("x-y"), 2065);
-  assertNull(res[750].firstMatch("x\ny"), 2066);
-  assertNull(res[750].firstMatch("a+bc+dp+q"), 2067);
-  assertNull(res[750].firstMatch("a+bc\ndp+q"), 2068);
-  assertNull(res[750].firstMatch("x\nyp+q "), 2069);
-  assertNull(res[750].firstMatch("*** Failers "), 2070);
-  assertNull(res[750].firstMatch("a\nbc\ndp+q"), 2071);
-  assertNull(res[750].firstMatch("a+bc\ndp\nq"), 2072);
-  assertNull(res[750].firstMatch("x\nyp\nq "), 2073);
-  assertNull(res[751].firstMatch("ba0"), 2074);
-  assertNull(res[751].firstMatch("*** Failers"), 2075);
-  assertNull(res[751].firstMatch("ba0\n"), 2076);
-  assertNull(res[751].firstMatch("ba0\ncd   "), 2077);
-  assertNull(res[752].firstMatch("ba0"), 2078);
-  assertNull(res[752].firstMatch("*** Failers"), 2079);
-  assertNull(res[752].firstMatch("ba0\n"), 2080);
-  assertNull(res[752].firstMatch("ba0\ncd   "), 2081);
-  assertNull(res[753].firstMatch("ba0"), 2082);
-  assertNull(res[753].firstMatch("ba0\n"), 2083);
-  assertNull(res[753].firstMatch("*** Failers"), 2084);
-  assertNull(res[753].firstMatch("ba0\ncd   "), 2085);
-  assertNull(res[754].firstMatch("ba0"), 2086);
-  assertNull(res[754].firstMatch("ba0\n"), 2087);
-  assertNull(res[754].firstMatch("*** Failers"), 2088);
-  assertNull(res[754].firstMatch("ba0\ncd   "), 2089);
-  assertToStringEquals("a0", res[755].firstMatch("ba0"), 2090);
-  assertNull(res[755].firstMatch("ba0\n"), 2091);
-  assertNull(res[755].firstMatch("*** Failers"), 2092);
-  assertNull(res[755].firstMatch("ba0\ncd   "), 2093);
-  assertToStringEquals("a0", res[756].firstMatch("ba0"), 2094);
-  assertToStringEquals("a0", res[756].firstMatch("ba0\n"), 2095);
-  assertToStringEquals("a0", res[756].firstMatch("ba0\ncd   "), 2096);
-  assertNull(res[756].firstMatch("*** Failers"), 2097);
-  assertToStringEquals("abc", res[757].firstMatch("abc"), 2098);
-  assertToStringEquals("aBc", res[757].firstMatch("aBc"), 2099);
-  assertToStringEquals("ABC", res[757].firstMatch("ABC"), 2100);
-  assertToStringEquals("b", res[758].firstMatch("abcd"), 2101);
-  assertToStringEquals("abz", res[759].firstMatch("abz"), 2102);
-  assertToStringEquals("abb", res[759].firstMatch("abbz"), 2103);
-  assertToStringEquals("az", res[759].firstMatch("azz  "), 2104);
-  assertToStringEquals("yz", res[760].firstMatch("ayzq"), 2105);
-  assertToStringEquals("xyz", res[760].firstMatch("axyzq"), 2106);
-  assertToStringEquals("xxyz", res[760].firstMatch("axxyz"), 2107);
-  assertToStringEquals("xxxyz", res[760].firstMatch("axxxyzq"), 2108);
-  assertToStringEquals("xxxyz", res[760].firstMatch("axxxxyzq"), 2109);
-  assertNull(res[760].firstMatch("*** Failers"), 2110);
-  assertNull(res[760].firstMatch("ax"), 2111);
-  assertNull(res[760].firstMatch("axx     "), 2112);
-  assertNull(res[760].firstMatch("  "), 2113);
-  assertToStringEquals("xxxyz", res[761].firstMatch("axxxyzq"), 2114);
-  assertToStringEquals("xxxyz", res[761].firstMatch("axxxxyzq"), 2115);
-  assertNull(res[761].firstMatch("*** Failers"), 2116);
-  assertNull(res[761].firstMatch("ax"), 2117);
-  assertNull(res[761].firstMatch("axx     "), 2118);
-  assertNull(res[761].firstMatch("ayzq"), 2119);
-  assertNull(res[761].firstMatch("axyzq"), 2120);
-  assertNull(res[761].firstMatch("axxyz"), 2121);
-  assertNull(res[761].firstMatch("  "), 2122);
-  assertToStringEquals("xxyz", res[762].firstMatch("axxyz"), 2123);
-  assertToStringEquals("xxxyz", res[762].firstMatch("axxxyzq"), 2124);
-  assertToStringEquals("xxxyz", res[762].firstMatch("axxxxyzq"), 2125);
-  assertNull(res[762].firstMatch("*** Failers"), 2126);
-  assertNull(res[762].firstMatch("ax"), 2127);
-  assertNull(res[762].firstMatch("axx     "), 2128);
-  assertNull(res[762].firstMatch("ayzq"), 2129);
-  assertNull(res[762].firstMatch("axyzq"), 2130);
-  assertNull(res[762].firstMatch("  "), 2131);
-  assertToStringEquals("b", res[763].firstMatch("bac"), 2132);
-  assertToStringEquals("bcdef", res[763].firstMatch("bcdefax"), 2133);
-  assertToStringEquals("*** F", res[763].firstMatch("*** Failers"), 2134);
-  assertToStringEquals("   ", res[763].firstMatch("aaaaa   "), 2135);
-  assertToStringEquals("b", res[764].firstMatch("bac"), 2136);
-  assertToStringEquals("bcdef", res[764].firstMatch("bcdefax"), 2137);
-  assertToStringEquals("*** F", res[764].firstMatch("*** Failers"), 2138);
-  assertToStringEquals("", res[764].firstMatch("aaaaa   "), 2139);
-  assertToStringEquals("xyz", res[765].firstMatch("xyz"), 2140);
-  assertToStringEquals("wxyz", res[765].firstMatch("awxyza"), 2141);
-  assertToStringEquals("bcdef", res[765].firstMatch("abcdefa"), 2142);
-  assertToStringEquals("bcdef", res[765].firstMatch("abcdefghijk"), 2143);
-  assertToStringEquals("*** F", res[765].firstMatch("*** Failers"), 2144);
-  assertNull(res[765].firstMatch("axya"), 2145);
-  assertNull(res[765].firstMatch("axa"), 2146);
-  assertToStringEquals("     ", res[765].firstMatch("aaaaa         "), 2147);
-  assertToStringEquals("1234", res[766].firstMatch("1234b567"), 2148);
-  assertToStringEquals("", res[766].firstMatch("xyz"), 2149);
-  assertToStringEquals("a", res[767].firstMatch("a1234b567"), 2150);
-  assertToStringEquals("xyz", res[767].firstMatch("xyz"), 2151);
-  assertToStringEquals(" ", res[767].firstMatch(" "), 2152);
-  assertToStringEquals("1234", res[768].firstMatch("ab1234c56"), 2153);
-  assertNull(res[768].firstMatch("*** Failers"), 2154);
-  assertNull(res[768].firstMatch("xyz"), 2155);
-  assertToStringEquals("ab", res[769].firstMatch("ab123c56"), 2156);
-  assertToStringEquals("*** Failers", res[769].firstMatch("*** Failers"), 2157);
-  assertNull(res[769].firstMatch("789"), 2158);
-  assertToStringEquals("5A", res[770].firstMatch("045ABC"), 2159);
-  assertToStringEquals("A", res[770].firstMatch("ABC"), 2160);
-  assertNull(res[770].firstMatch("*** Failers"), 2161);
-  assertNull(res[770].firstMatch("XYZ"), 2162);
-  assertToStringEquals("A", res[771].firstMatch("ABC"), 2163);
-  assertToStringEquals("BA", res[771].firstMatch("BAC"), 2164);
-  assertToStringEquals("A", res[771].firstMatch("9ABC             "), 2165);
-  assertNull(res[771].firstMatch("*** Failers"), 2166);
-  assertToStringEquals("aaaa", res[772].firstMatch("aaaa"), 2167);
-  assertToStringEquals("xyz", res[773].firstMatch("xyz"), 2168);
-  assertToStringEquals("ggggggggxyz", res[773].firstMatch("ggggggggxyz"), 2169);
-  assertToStringEquals("abcdxyz", res[774].firstMatch("abcdxyz"), 2170);
-  assertToStringEquals("axyz", res[774].firstMatch("axyz"), 2171);
-  assertNull(res[774].firstMatch("*** Failers"), 2172);
-  assertNull(res[774].firstMatch("xyz"), 2173);
-  assertToStringEquals("xyz", res[775].firstMatch("xyz"), 2174);
-  assertToStringEquals("cxyz", res[775].firstMatch("cxyz       "), 2175);
-  assertToStringEquals("12X", res[776].firstMatch("12X"), 2176);
-  assertToStringEquals("123X", res[776].firstMatch("123X"), 2177);
-  assertNull(res[776].firstMatch("*** Failers"), 2178);
-  assertNull(res[776].firstMatch("X"), 2179);
-  assertNull(res[776].firstMatch("1X"), 2180);
-  assertNull(res[776].firstMatch("1234X     "), 2181);
-  assertToStringEquals("a4", res[777].firstMatch("a45"), 2182);
-  assertToStringEquals("b9", res[777].firstMatch("b93"), 2183);
-  assertToStringEquals("c9", res[777].firstMatch("c99z"), 2184);
-  assertToStringEquals("d0", res[777].firstMatch("d04"), 2185);
-  assertNull(res[777].firstMatch("*** Failers"), 2186);
-  assertNull(res[777].firstMatch("e45"), 2187);
-  assertNull(res[777].firstMatch("abcd      "), 2188);
-  assertNull(res[777].firstMatch("abcd1234"), 2189);
-  assertNull(res[777].firstMatch("1234  "), 2190);
-  assertToStringEquals("a4", res[778].firstMatch("a45"), 2191);
-  assertToStringEquals("b9", res[778].firstMatch("b93"), 2192);
-  assertToStringEquals("c9", res[778].firstMatch("c99z"), 2193);
-  assertToStringEquals("d0", res[778].firstMatch("d04"), 2194);
-  assertToStringEquals("abcd1", res[778].firstMatch("abcd1234"), 2195);
-  assertToStringEquals("1", res[778].firstMatch("1234  "), 2196);
-  assertNull(res[778].firstMatch("*** Failers"), 2197);
-  assertNull(res[778].firstMatch("e45"), 2198);
-  assertNull(res[778].firstMatch("abcd      "), 2199);
-  assertToStringEquals("a4", res[779].firstMatch("a45"), 2200);
-  assertToStringEquals("b9", res[779].firstMatch("b93"), 2201);
-  assertToStringEquals("c9", res[779].firstMatch("c99z"), 2202);
-  assertToStringEquals("d0", res[779].firstMatch("d04"), 2203);
-  assertToStringEquals("abcd1", res[779].firstMatch("abcd1234"), 2204);
-  assertNull(res[779].firstMatch("*** Failers"), 2205);
-  assertNull(res[779].firstMatch("1234  "), 2206);
-  assertNull(res[779].firstMatch("e45"), 2207);
-  assertNull(res[779].firstMatch("abcd      "), 2208);
-  assertToStringEquals("aX", res[780].firstMatch("aX"), 2209);
-  assertToStringEquals("aaX", res[780].firstMatch("aaX "), 2210);
-  assertToStringEquals("a4", res[781].firstMatch("a45"), 2211);
-  assertToStringEquals("b9", res[781].firstMatch("b93"), 2212);
-  assertToStringEquals("c9", res[781].firstMatch("c99z"), 2213);
-  assertToStringEquals("d0", res[781].firstMatch("d04"), 2214);
-  assertToStringEquals("1", res[781].firstMatch("1234  "), 2215);
-  assertNull(res[781].firstMatch("*** Failers"), 2216);
-  assertNull(res[781].firstMatch("abcd1234"), 2217);
-  assertNull(res[781].firstMatch("e45"), 2218);
-  assertToStringEquals("ab4", res[782].firstMatch("ab45"), 2219);
-  assertToStringEquals("bcd9", res[782].firstMatch("bcd93"), 2220);
-  assertNull(res[782].firstMatch("*** Failers"), 2221);
-  assertNull(res[782].firstMatch("1234 "), 2222);
-  assertNull(res[782].firstMatch("a36 "), 2223);
-  assertNull(res[782].firstMatch("abcd1234"), 2224);
-  assertNull(res[782].firstMatch("ee45"), 2225);
-  assertToStringEquals("abc4,abc", res[783].firstMatch("abc45"), 2226);
-  assertToStringEquals(
-      "abcabcabc4,abc", res[783].firstMatch("abcabcabc45"), 2227);
-  assertToStringEquals("4,", res[783].firstMatch("42xyz "), 2228);
-  assertNull(res[783].firstMatch("*** Failers"), 2229);
-  assertToStringEquals("abc4,abc", res[784].firstMatch("abc45"), 2230);
-  assertToStringEquals(
-      "abcabcabc4,abc", res[784].firstMatch("abcabcabc45"), 2231);
-  assertNull(res[784].firstMatch("*** Failers"), 2232);
-  assertNull(res[784].firstMatch("42xyz "), 2233);
-  assertToStringEquals("abc4,abc", res[785].firstMatch("abc45"), 2234);
-  assertToStringEquals("4,", res[785].firstMatch("42xyz "), 2235);
-  assertNull(res[785].firstMatch("*** Failers"), 2236);
-  assertNull(res[785].firstMatch("abcabcabc45"), 2237);
-  assertToStringEquals("abcabc4,abc", res[786].firstMatch("abcabc45"), 2238);
-  assertToStringEquals(
-      "abcabcabc4,abc", res[786].firstMatch("abcabcabc45"), 2239);
-  assertNull(res[786].firstMatch("*** Failers"), 2240);
-  assertNull(res[786].firstMatch("abcabcabcabc45"), 2241);
-  assertNull(res[786].firstMatch("abc45"), 2242);
-  assertNull(res[786].firstMatch("42xyz "), 2243);
-  assertNull(res[786].firstMatch("1abc2abc3456"), 2244);
-  assertNull(res[786].firstMatch("1abc2xyz3456 "), 2245);
-  assertToStringEquals("ab=ab,ab,ab", res[787].firstMatch("ab=ab"), 2246);
-  assertToStringEquals("ab=ab,ab,ab", res[787].firstMatch("ab=ab"), 2247);
-  assertNull(res[787].firstMatch("abc"), 2248);
-  assertNull(res[787].firstMatch("a(b)c"), 2249);
-  assertNull(res[787].firstMatch("a(b(c))d  "), 2250);
-  assertNull(res[787].firstMatch("*** Failers)"), 2251);
-  assertNull(res[787].firstMatch("a(b(c)d  "), 2252);
-  assertNull(res[787].firstMatch(">abc>123<xyz<"), 2253);
-  assertNull(res[787].firstMatch(">abc>1(2)3<xyz<"), 2254);
-  assertNull(res[787].firstMatch(">abc>(1(2)3)<xyz<"), 2255);
-  assertNull(
-      res[787].firstMatch(
-          "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa9876"),
-      2256);
-  assertNull(res[787].firstMatch("*** Failers "), 2257);
-  assertNull(
-      res[787].firstMatch(
-          "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"),
-      2258);
-  assertNull(res[787].firstMatch("<>"), 2259);
-  assertNull(res[787].firstMatch("<abcd>"), 2260);
-  assertNull(res[787].firstMatch("<abc <123> hij>"), 2261);
-  assertNull(res[787].firstMatch("<abc <def> hij>"), 2262);
-  assertNull(res[787].firstMatch("<abc<>def> "), 2263);
-  assertNull(res[787].firstMatch("<abc<>      "), 2264);
-  assertNull(res[787].firstMatch("*** Failers"), 2265);
-  assertNull(res[787].firstMatch("<abc"), 2266);
-  assertNull(res[787].firstMatch("abc:                          "), 2267);
-  assertNull(res[787].firstMatch("12                             "), 2268);
-  assertNull(res[787].firstMatch("*** Failers                     "), 2269);
-  assertNull(res[787].firstMatch("123                       "), 2270);
-  assertNull(res[787].firstMatch("xyz                        "), 2271);
-  assertNull(res[787].firstMatch("                            "), 2272);
-  assertNull(res[787].firstMatch("abc:                        "), 2273);
-  assertNull(res[787].firstMatch("12         "), 2274);
-  assertNull(res[787].firstMatch("*** Failers"), 2275);
-  assertNull(res[787].firstMatch("123"), 2276);
-  assertNull(res[787].firstMatch("xyz    "), 2277);
-  assertNull(res[788].firstMatch("abcde:                          "), 2278);
-  assertNull(res[788].firstMatch("*** Failers                     "), 2279);
-  assertNull(res[788].firstMatch("abc.. "), 2280);
-  assertNull(res[788].firstMatch("123                       "), 2281);
-  assertNull(res[788].firstMatch("vwxyz                        "), 2282);
-  assertNull(res[788].firstMatch("                            "), 2283);
-  assertNull(res[789].firstMatch("12         "), 2284);
-  assertNull(res[789].firstMatch("*** Failers"), 2285);
-  assertNull(res[789].firstMatch("abcde:"), 2286);
-  assertNull(res[789].firstMatch("abc..  "), 2287);
-  assertNull(res[789].firstMatch("123"), 2288);
-  assertNull(res[789].firstMatch("vwxyz    "), 2289);
-  assertNull(res[789].firstMatch("abc12345"), 2290);
-  assertNull(res[789].firstMatch("wxy123z"), 2291);
-  assertNull(res[789].firstMatch("*** Failers"), 2292);
-  assertNull(res[789].firstMatch("123abc"), 2293);
-  assertNull(res[789].firstMatch("123abc"), 2294);
-  assertNull(res[789].firstMatch("mno123456 "), 2295);
-  assertNull(res[789].firstMatch("*** Failers"), 2296);
-  assertNull(res[789].firstMatch("abc12345"), 2297);
-  assertNull(res[789].firstMatch("wxy123z"), 2298);
-  assertNull(res[789].firstMatch("abcxyz"), 2299);
-  assertNull(res[789].firstMatch("123abcxyz999 "), 2300);
-  assertToStringEquals("abc", res[791].firstMatch("abcdef"), 2301);
-  assertNull(res[791].firstMatch("*** Failers"), 2302);
-  assertToStringEquals("abc", res[791].firstMatch("abcdefB  "), 2303);
-  assertToStringEquals(",", res[792].firstMatch("bcd"), 2304);
-  assertToStringEquals("aaa,aaa", res[792].firstMatch("aaabcd"), 2305);
-  assertToStringEquals(",", res[792].firstMatch("xyz"), 2306);
-  assertToStringEquals(",", res[792].firstMatch("xyzN  "), 2307);
-  assertToStringEquals(",", res[792].firstMatch("*** Failers"), 2308);
-  assertToStringEquals(",", res[792].firstMatch("bcdN   "), 2309);
-  assertToStringEquals("xyz", res[793].firstMatch("xyz"), 2310);
-  assertNull(res[793].firstMatch("xyz\n"), 2311);
-  assertNull(res[793].firstMatch("*** Failers"), 2312);
-  assertNull(res[793].firstMatch("xyzZ"), 2313);
-  assertNull(res[793].firstMatch("xyz\nZ    "), 2314);
-  assertToStringEquals("xyz", res[794].firstMatch("xyz"), 2315);
-  assertToStringEquals("xyz", res[794].firstMatch("xyz\n "), 2316);
-  assertToStringEquals("xyz", res[794].firstMatch("abcxyz\npqr "), 2317);
-  assertToStringEquals("xyz", res[794].firstMatch("abcxyz\npqrZ "), 2318);
-  assertToStringEquals("xyz", res[794].firstMatch("xyz\nZ    "), 2319);
-  assertNull(res[794].firstMatch("*** Failers"), 2320);
-  assertNull(res[794].firstMatch("xyzZ"), 2321);
-  assertNull(res[795].firstMatch("abcdef"), 2322);
-  assertNull(res[795].firstMatch("defabcxyz>3 "), 2323);
-  assertNull(res[795].firstMatch("*** Failers "), 2324);
-  assertNull(res[795].firstMatch("defabcxyz"), 2325);
-  assertNull(res[796].firstMatch("abP"), 2326);
-  assertNull(res[796].firstMatch("abcdeP"), 2327);
-  assertToStringEquals("abcdef", res[796].firstMatch("abcdefP"), 2328);
-  assertNull(res[796].firstMatch("*** Failers"), 2329);
-  assertNull(res[796].firstMatch("abxP    "), 2330);
-  assertNull(res[797].firstMatch("aP"), 2331);
-  assertNull(res[797].firstMatch("aaP"), 2332);
-  assertNull(res[797].firstMatch("aa2P "), 2333);
-  assertNull(res[797].firstMatch("aaaP"), 2334);
-  assertNull(res[797].firstMatch("aaa23P "), 2335);
-  assertNull(res[797].firstMatch("aaaa12345P"), 2336);
-  assertToStringEquals("aa0z", res[797].firstMatch("aa0zP"), 2337);
-  assertToStringEquals(
-      "aaaa4444444444444z", res[797].firstMatch("aaaa4444444444444zP "), 2338);
-  assertNull(res[797].firstMatch("*** Failers"), 2339);
-  assertNull(res[797].firstMatch("azP "), 2340);
-  assertNull(res[797].firstMatch("aaaaaP "), 2341);
-  assertNull(res[797].firstMatch("a56P "), 2342);
-  assertNull(
-      res[799].firstMatch("adfadadaklhlkalkajhlkjahdfasdfasdfladsfjkjPZ"),
-      2343);
-  assertNull(
-      res[799].firstMatch("lkjhlkjhlkjhlkjhabbbbbbcdaefabbbbbbbefaPBZ"), 2344);
-  assertNull(res[799].firstMatch("cdabbbbbbbbPRBZ"), 2345);
-  assertNull(res[799].firstMatch("efabbbbbbbbbbbbbbbbPRBZ"), 2346);
-  assertNull(res[799].firstMatch("bbbbbbbbbbbbcdXyasdfadfPRBZ    "), 2347);
-  assertNull(res[799].firstMatch("abc"), 2348);
-  assertNull(res[799].firstMatch("** Failers"), 2349);
-  assertNull(res[799].firstMatch("def  "), 2350);
-  assertToStringEquals(
-      "the quick brown fox", res[800].firstMatch("the quick brown fox"), 2351);
-  assertNull(res[800].firstMatch("The quick brown FOX"), 2352);
-  assertToStringEquals("the quick brown fox",
-      res[800].firstMatch("What do you know about the quick brown fox?"), 2353);
-  assertNull(
-      res[800].firstMatch("What do you know about THE QUICK BROWN FOX?"), 2354);
-  assertToStringEquals(
-      "the quick brown fox", res[801].firstMatch("the quick brown fox"), 2355);
-  assertToStringEquals(
-      "The quick brown FOX", res[801].firstMatch("The quick brown FOX"), 2356);
-  assertToStringEquals("the quick brown fox",
-      res[801].firstMatch("What do you know about the quick brown fox?"), 2357);
-  assertToStringEquals("THE QUICK BROWN FOX",
-      res[801].firstMatch("What do you know about THE QUICK BROWN FOX?"), 2358);
-  assertToStringEquals("abcd\x09\n\x0d\x0cae9;\$\\?caxyz",
-      res[802].firstMatch("abcd\x09\n\x0d\x0cae9;\$\\?caxyz"), 2359);
-  assertToStringEquals("abxyzpqrrrabbxyyyypqAzz",
-      res[803].firstMatch("abxyzpqrrrabbxyyyypqAzz"), 2360);
-  assertToStringEquals("abxyzpqrrrabbxyyyypqAzz",
-      res[803].firstMatch("abxyzpqrrrabbxyyyypqAzz"), 2361);
-  assertToStringEquals("aabxyzpqrrrabbxyyyypqAzz",
-      res[803].firstMatch("aabxyzpqrrrabbxyyyypqAzz"), 2362);
-  assertToStringEquals("aaabxyzpqrrrabbxyyyypqAzz",
-      res[803].firstMatch("aaabxyzpqrrrabbxyyyypqAzz"), 2363);
-  assertToStringEquals("aaaabxyzpqrrrabbxyyyypqAzz",
-      res[803].firstMatch("aaaabxyzpqrrrabbxyyyypqAzz"), 2364);
-  assertToStringEquals("abcxyzpqrrrabbxyyyypqAzz",
-      res[803].firstMatch("abcxyzpqrrrabbxyyyypqAzz"), 2365);
-  assertToStringEquals("aabcxyzpqrrrabbxyyyypqAzz",
-      res[803].firstMatch("aabcxyzpqrrrabbxyyyypqAzz"), 2366);
-  assertToStringEquals("aaabcxyzpqrrrabbxyyyypAzz",
-      res[803].firstMatch("aaabcxyzpqrrrabbxyyyypAzz"), 2367);
-  assertToStringEquals("aaabcxyzpqrrrabbxyyyypqAzz",
-      res[803].firstMatch("aaabcxyzpqrrrabbxyyyypqAzz"), 2368);
-  assertToStringEquals("aaabcxyzpqrrrabbxyyyypqqAzz",
-      res[803].firstMatch("aaabcxyzpqrrrabbxyyyypqqAzz"), 2369);
-  assertToStringEquals("aaabcxyzpqrrrabbxyyyypqqqAzz",
-      res[803].firstMatch("aaabcxyzpqrrrabbxyyyypqqqAzz"), 2370);
-  assertToStringEquals("aaabcxyzpqrrrabbxyyyypqqqqAzz",
-      res[803].firstMatch("aaabcxyzpqrrrabbxyyyypqqqqAzz"), 2371);
-  assertToStringEquals("aaabcxyzpqrrrabbxyyyypqqqqqAzz",
-      res[803].firstMatch("aaabcxyzpqrrrabbxyyyypqqqqqAzz"), 2372);
-  assertToStringEquals("aaabcxyzpqrrrabbxyyyypqqqqqqAzz",
-      res[803].firstMatch("aaabcxyzpqrrrabbxyyyypqqqqqqAzz"), 2373);
-  assertToStringEquals("aaaabcxyzpqrrrabbxyyyypqAzz",
-      res[803].firstMatch("aaaabcxyzpqrrrabbxyyyypqAzz"), 2374);
-  assertToStringEquals("abxyzzpqrrrabbxyyyypqAzz",
-      res[803].firstMatch("abxyzzpqrrrabbxyyyypqAzz"), 2375);
-  assertToStringEquals("aabxyzzzpqrrrabbxyyyypqAzz",
-      res[803].firstMatch("aabxyzzzpqrrrabbxyyyypqAzz"), 2376);
-  assertToStringEquals("aaabxyzzzzpqrrrabbxyyyypqAzz",
-      res[803].firstMatch("aaabxyzzzzpqrrrabbxyyyypqAzz"), 2377);
-  assertToStringEquals("aaaabxyzzzzpqrrrabbxyyyypqAzz",
-      res[803].firstMatch("aaaabxyzzzzpqrrrabbxyyyypqAzz"), 2378);
-  assertToStringEquals("abcxyzzpqrrrabbxyyyypqAzz",
-      res[803].firstMatch("abcxyzzpqrrrabbxyyyypqAzz"), 2379);
-  assertToStringEquals("aabcxyzzzpqrrrabbxyyyypqAzz",
-      res[803].firstMatch("aabcxyzzzpqrrrabbxyyyypqAzz"), 2380);
-  assertToStringEquals("aaabcxyzzzzpqrrrabbxyyyypqAzz",
-      res[803].firstMatch("aaabcxyzzzzpqrrrabbxyyyypqAzz"), 2381);
-  assertToStringEquals("aaaabcxyzzzzpqrrrabbxyyyypqAzz",
-      res[803].firstMatch("aaaabcxyzzzzpqrrrabbxyyyypqAzz"), 2382);
-  assertToStringEquals("aaaabcxyzzzzpqrrrabbbxyyyypqAzz",
-      res[803].firstMatch("aaaabcxyzzzzpqrrrabbbxyyyypqAzz"), 2383);
-  assertToStringEquals("aaaabcxyzzzzpqrrrabbbxyyyyypqAzz",
-      res[803].firstMatch("aaaabcxyzzzzpqrrrabbbxyyyyypqAzz"), 2384);
-  assertToStringEquals("aaabcxyzpqrrrabbxyyyypABzz",
-      res[803].firstMatch("aaabcxyzpqrrrabbxyyyypABzz"), 2385);
-  assertToStringEquals("aaabcxyzpqrrrabbxyyyypABBzz",
-      res[803].firstMatch("aaabcxyzpqrrrabbxyyyypABBzz"), 2386);
-  assertToStringEquals("aaabxyzpqrrrabbxyyyypqAzz",
-      res[803].firstMatch(">>>aaabxyzpqrrrabbxyyyypqAzz"), 2387);
-  assertToStringEquals("aaaabxyzpqrrrabbxyyyypqAzz",
-      res[803].firstMatch(">aaaabxyzpqrrrabbxyyyypqAzz"), 2388);
-  assertToStringEquals("abcxyzpqrrrabbxyyyypqAzz",
-      res[803].firstMatch(">>>>abcxyzpqrrrabbxyyyypqAzz"), 2389);
-  assertNull(res[803].firstMatch("*** Failers"), 2390);
-  assertNull(res[803].firstMatch("abxyzpqrrabbxyyyypqAzz"), 2391);
-  assertNull(res[803].firstMatch("abxyzpqrrrrabbxyyyypqAzz"), 2392);
-  assertNull(res[803].firstMatch("abxyzpqrrrabxyyyypqAzz"), 2393);
-  assertNull(res[803].firstMatch("aaaabcxyzzzzpqrrrabbbxyyyyyypqAzz"), 2394);
-  assertNull(res[803].firstMatch("aaaabcxyzzzzpqrrrabbbxyyypqAzz"), 2395);
-  assertNull(res[803].firstMatch("aaabcxyzpqrrrabbxyyyypqqqqqqqAzz"), 2396);
-  assertToStringEquals("abczz,abc", res[804].firstMatch("abczz"), 2397);
-  assertToStringEquals("abcabczz,abc", res[804].firstMatch("abcabczz"), 2398);
-  assertNull(res[804].firstMatch("*** Failers"), 2399);
-  assertNull(res[804].firstMatch("zz"), 2400);
-  assertNull(res[804].firstMatch("abcabcabczz"), 2401);
-  assertNull(res[804].firstMatch(">>abczz"), 2402);
-  assertToStringEquals("bc,b", res[805].firstMatch("bc"), 2403);
-  assertToStringEquals("bbc,b", res[805].firstMatch("bbc"), 2404);
-  assertToStringEquals("bbbc,bb", res[805].firstMatch("bbbc"), 2405);
-  assertToStringEquals("bac,a", res[805].firstMatch("bac"), 2406);
-  assertToStringEquals("bbac,a", res[805].firstMatch("bbac"), 2407);
-  assertToStringEquals("aac,a", res[805].firstMatch("aac"), 2408);
-  assertToStringEquals(
-      "abbbbbbbbbbbc,bbbbbbbbbbb", res[805].firstMatch("abbbbbbbbbbbc"), 2409);
-  assertToStringEquals(
-      "bbbbbbbbbbbac,a", res[805].firstMatch("bbbbbbbbbbbac"), 2410);
-  assertNull(res[805].firstMatch("*** Failers"), 2411);
-  assertNull(res[805].firstMatch("aaac"), 2412);
-  assertNull(res[805].firstMatch("abbbbbbbbbbbac"), 2413);
-  assertToStringEquals("bc,b", res[806].firstMatch("bc"), 2414);
-  assertToStringEquals("bbc,bb", res[806].firstMatch("bbc"), 2415);
-  assertToStringEquals("bbbc,bbb", res[806].firstMatch("bbbc"), 2416);
-  assertToStringEquals("bac,a", res[806].firstMatch("bac"), 2417);
-  assertToStringEquals("bbac,a", res[806].firstMatch("bbac"), 2418);
-  assertToStringEquals("aac,a", res[806].firstMatch("aac"), 2419);
-  assertToStringEquals(
-      "abbbbbbbbbbbc,bbbbbbbbbbb", res[806].firstMatch("abbbbbbbbbbbc"), 2420);
-  assertToStringEquals(
-      "bbbbbbbbbbbac,a", res[806].firstMatch("bbbbbbbbbbbac"), 2421);
-  assertNull(res[806].firstMatch("*** Failers"), 2422);
-  assertNull(res[806].firstMatch("aaac"), 2423);
-  assertNull(res[806].firstMatch("abbbbbbbbbbbac"), 2424);
-  assertToStringEquals("bbc,bb", res[806].firstMatch("bbc"), 2425);
-  assertToStringEquals("babc,ba", res[807].firstMatch("babc"), 2426);
-  assertToStringEquals("bbabc,ba", res[807].firstMatch("bbabc"), 2427);
-  assertToStringEquals("bababc,ba", res[807].firstMatch("bababc"), 2428);
-  assertNull(res[807].firstMatch("*** Failers"), 2429);
-  assertNull(res[807].firstMatch("bababbc"), 2430);
-  assertNull(res[807].firstMatch("babababc"), 2431);
-  assertToStringEquals("babc,ba", res[808].firstMatch("babc"), 2432);
-  assertToStringEquals("bbabc,ba", res[808].firstMatch("bbabc"), 2433);
-  assertToStringEquals("bababc,ba", res[808].firstMatch("bababc"), 2434);
-  assertNull(res[808].firstMatch("*** Failers"), 2435);
-  assertNull(res[808].firstMatch("bababbc"), 2436);
-  assertNull(res[808].firstMatch("babababc"), 2437);
-  assertThrows(() => new RegExp(r"^\\ca\\cA\\c[\\c{\\c:"), 2438);
-  assertNull(res[808].firstMatch("\x01\x01e;z"), 2439);
-  assertToStringEquals("a", res[809].firstMatch("athing"), 2440);
-  assertToStringEquals("b", res[809].firstMatch("bthing"), 2441);
-  assertToStringEquals("]", res[809].firstMatch("]thing"), 2442);
-  assertToStringEquals("c", res[809].firstMatch("cthing"), 2443);
-  assertToStringEquals("d", res[809].firstMatch("dthing"), 2444);
-  assertToStringEquals("e", res[809].firstMatch("ething"), 2445);
-  assertNull(res[809].firstMatch("*** Failers"), 2446);
-  assertNull(res[809].firstMatch("fthing"), 2447);
-  assertNull(res[809].firstMatch("[thing"), 2448);
-  assertNull(res[809].firstMatch("\\thing"), 2449);
-  assertNull(res[810].firstMatch("]thing"), 2450);
-  assertNull(res[810].firstMatch("cthing"), 2451);
-  assertNull(res[810].firstMatch("dthing"), 2452);
-  assertNull(res[810].firstMatch("ething"), 2453);
-  assertNull(res[810].firstMatch("*** Failers"), 2454);
-  assertNull(res[810].firstMatch("athing"), 2455);
-  assertNull(res[810].firstMatch("fthing"), 2456);
-  assertToStringEquals("f", res[811].firstMatch("fthing"), 2457);
-  assertToStringEquals("[", res[811].firstMatch("[thing"), 2458);
-  assertToStringEquals("\\", res[811].firstMatch("\\thing"), 2459);
-  assertToStringEquals("*", res[811].firstMatch("*** Failers"), 2460);
-  assertNull(res[811].firstMatch("athing"), 2461);
-  assertNull(res[811].firstMatch("bthing"), 2462);
-  assertNull(res[811].firstMatch("]thing"), 2463);
-  assertNull(res[811].firstMatch("cthing"), 2464);
-  assertNull(res[811].firstMatch("dthing"), 2465);
-  assertNull(res[811].firstMatch("ething"), 2466);
-  assertNull(res[812].firstMatch("athing"), 2467);
-  assertNull(res[812].firstMatch("fthing"), 2468);
-  assertNull(res[812].firstMatch("*** Failers"), 2469);
-  assertNull(res[812].firstMatch("]thing"), 2470);
-  assertNull(res[812].firstMatch("cthing"), 2471);
-  assertNull(res[812].firstMatch("dthing"), 2472);
-  assertNull(res[812].firstMatch("ething"), 2473);
-  assertNull(res[812].firstMatch("\ufffd"), 2474);
-  assertNull(res[812].firstMatch("\ufffd"), 2475);
-  assertToStringEquals("0", res[813].firstMatch("0"), 2476);
-  assertToStringEquals("1", res[813].firstMatch("1"), 2477);
-  assertToStringEquals("2", res[813].firstMatch("2"), 2478);
-  assertToStringEquals("3", res[813].firstMatch("3"), 2479);
-  assertToStringEquals("4", res[813].firstMatch("4"), 2480);
-  assertToStringEquals("5", res[813].firstMatch("5"), 2481);
-  assertToStringEquals("6", res[813].firstMatch("6"), 2482);
-  assertToStringEquals("7", res[813].firstMatch("7"), 2483);
-  assertToStringEquals("8", res[813].firstMatch("8"), 2484);
-  assertToStringEquals("9", res[813].firstMatch("9"), 2485);
-  assertToStringEquals("10", res[813].firstMatch("10"), 2486);
-  assertToStringEquals("100", res[813].firstMatch("100"), 2487);
-  assertNull(res[813].firstMatch("*** Failers"), 2488);
-  assertNull(res[813].firstMatch("abc"), 2489);
-  assertToStringEquals("enter", res[814].firstMatch("enter"), 2490);
-  assertToStringEquals("inter", res[814].firstMatch("inter"), 2491);
-  assertToStringEquals("uponter", res[814].firstMatch("uponter"), 2492);
-  assertToStringEquals("xxx0", res[815].firstMatch("xxx0"), 2493);
-  assertToStringEquals("xxx1234", res[815].firstMatch("xxx1234"), 2494);
-  assertNull(res[815].firstMatch("*** Failers"), 2495);
-  assertNull(res[815].firstMatch("xxx"), 2496);
-  assertToStringEquals("x123", res[816].firstMatch("x123"), 2497);
-  assertToStringEquals("xx123", res[816].firstMatch("xx123"), 2498);
-  assertToStringEquals("123456", res[816].firstMatch("123456"), 2499);
-  assertNull(res[816].firstMatch("*** Failers"), 2500);
-  assertNull(res[816].firstMatch("123"), 2501);
-  assertToStringEquals("x1234", res[816].firstMatch("x1234"), 2502);
-  assertToStringEquals("x123", res[817].firstMatch("x123"), 2503);
-  assertToStringEquals("xx123", res[817].firstMatch("xx123"), 2504);
-  assertToStringEquals("123456", res[817].firstMatch("123456"), 2505);
-  assertNull(res[817].firstMatch("*** Failers"), 2506);
-  assertNull(res[817].firstMatch("123"), 2507);
-  assertToStringEquals("x1234", res[817].firstMatch("x1234"), 2508);
-  assertToStringEquals("abc!pqr=apquxz.ixr.zzz.ac.uk,abc,pqr",
-      res[818].firstMatch("abc!pqr=apquxz.ixr.zzz.ac.uk"), 2509);
-  assertNull(res[818].firstMatch("*** Failers"), 2510);
-  assertNull(res[818].firstMatch("!pqr=apquxz.ixr.zzz.ac.uk"), 2511);
-  assertNull(res[818].firstMatch("abc!=apquxz.ixr.zzz.ac.uk"), 2512);
-  assertNull(res[818].firstMatch("abc!pqr=apquxz:ixr.zzz.ac.uk"), 2513);
-  assertNull(res[818].firstMatch("abc!pqr=apquxz.ixr.zzz.ac.ukk"), 2514);
-  assertToStringEquals(
-      ":", res[819].firstMatch("Well, we need a colon: somewhere"), 2515);
-  assertNull(res[819].firstMatch("*** Fail if we don't"), 2516);
-  assertToStringEquals("0abc,0abc", res[820].firstMatch("0abc"), 2517);
-  assertToStringEquals("abc,abc", res[820].firstMatch("abc"), 2518);
-  assertToStringEquals("fed,fed", res[820].firstMatch("fed"), 2519);
-  assertToStringEquals("E,E", res[820].firstMatch("E"), 2520);
-  assertToStringEquals("::,::", res[820].firstMatch("::"), 2521);
-  assertToStringEquals("5f03:12C0::932e,5f03:12C0::932e",
-      res[820].firstMatch("5f03:12C0::932e"), 2522);
-  assertToStringEquals("def,def", res[820].firstMatch("fed def"), 2523);
-  assertToStringEquals("ff,ff", res[820].firstMatch("Any old stuff"), 2524);
-  assertNull(res[820].firstMatch("*** Failers"), 2525);
-  assertNull(res[820].firstMatch("0zzz"), 2526);
-  assertNull(res[820].firstMatch("gzzz"), 2527);
-  assertNull(res[820].firstMatch("fed "), 2528);
-  assertNull(res[820].firstMatch("Any old rubbish"), 2529);
-  assertToStringEquals(".1.2.3,1,2,3", res[821].firstMatch(".1.2.3"), 2530);
-  assertToStringEquals(
-      "A.12.123.0,12,123,0", res[821].firstMatch("A.12.123.0"), 2531);
-  assertNull(res[821].firstMatch("*** Failers"), 2532);
-  assertNull(res[821].firstMatch(".1.2.3333"), 2533);
-  assertNull(res[821].firstMatch("1.2.3"), 2534);
-  assertNull(res[821].firstMatch("1234.2.3"), 2535);
-  assertToStringEquals("1 IN SOA non-sp1 non-sp2(,1,non-sp1,non-sp2",
-      res[822].firstMatch("1 IN SOA non-sp1 non-sp2("), 2536);
-  assertToStringEquals(
-      "1    IN    SOA    non-sp1    non-sp2   (,1,non-sp1,non-sp2",
-      res[822].firstMatch("1    IN    SOA    non-sp1    non-sp2   ("),
-      2537);
-  assertNull(res[822].firstMatch("*** Failers"), 2538);
-  assertNull(res[822].firstMatch("1IN SOA non-sp1 non-sp2("), 2539);
-  assertToStringEquals("a.,", res[823].firstMatch("a."), 2540);
-  assertToStringEquals("Z.,", res[823].firstMatch("Z."), 2541);
-  assertToStringEquals("2.,", res[823].firstMatch("2."), 2542);
-  assertToStringEquals(
-      "ab-c.pq-r.,.pq-r", res[823].firstMatch("ab-c.pq-r."), 2543);
-  assertToStringEquals(
-      "sxk.zzz.ac.uk.,.uk", res[823].firstMatch("sxk.zzz.ac.uk."), 2544);
-  assertToStringEquals("x-.y-.,.y-", res[823].firstMatch("x-.y-."), 2545);
-  assertNull(res[823].firstMatch("*** Failers"), 2546);
-  assertNull(res[823].firstMatch("-abc.peq."), 2547);
-  assertToStringEquals("*.a,,,", res[824].firstMatch("*.a"), 2548);
-  assertToStringEquals("*.b0-a,0-a,,", res[824].firstMatch("*.b0-a"), 2549);
-  assertToStringEquals(
-      "*.c3-b.c,3-b,.c,", res[824].firstMatch("*.c3-b.c"), 2550);
-  assertToStringEquals(
-      "*.c-a.b-c,-a,.b-c,-c", res[824].firstMatch("*.c-a.b-c"), 2551);
-  assertNull(res[824].firstMatch("*** Failers"), 2552);
-  assertNull(res[824].firstMatch("*.0"), 2553);
-  assertNull(res[824].firstMatch("*.a-"), 2554);
-  assertNull(res[824].firstMatch("*.a-b.c-"), 2555);
-  assertNull(res[824].firstMatch("*.c-a.0-c"), 2556);
-  assertToStringEquals("abde,de,abd,e", res[825].firstMatch("abde"), 2557);
-  assertToStringEquals("abdf,,abd,f", res[826].firstMatch("abdf"), 2558);
-  assertToStringEquals("ab,abcd,cd,ab", res[827].firstMatch("abcd"), 2559);
-  assertToStringEquals("a.b.c.d,.d", res[828].firstMatch("a.b.c.d"), 2560);
-  assertToStringEquals("A.B.C.D,.D", res[828].firstMatch("A.B.C.D"), 2561);
-  assertToStringEquals(
-      "a.b.c.1.2.3.C,.C", res[828].firstMatch("a.b.c.1.2.3.C"), 2562);
-  assertToStringEquals("\"1234\",", res[829].firstMatch("\"1234\""), 2563);
-  assertToStringEquals("\"abcd\" ;,;", res[829].firstMatch("\"abcd\" ;"), 2564);
-  assertToStringEquals(
-      "\"\" ; rhubarb,; rhubarb", res[829].firstMatch("\"\" ; rhubarb"), 2565);
-  assertNull(res[829].firstMatch("*** Failers"), 2566);
-  assertNull(res[829].firstMatch("\"1234\" : things"), 2567);
-  assertNull(res[830].firstMatch("\\"), 2568);
-  assertNull(res[830].firstMatch("*** Failers"), 2569);
-  assertToStringEquals("ab c", res[831].firstMatch("ab c"), 2570);
-  assertNull(res[831].firstMatch("*** Failers"), 2571);
-  assertNull(res[831].firstMatch("abc"), 2572);
-  assertNull(res[831].firstMatch("ab cde"), 2573);
-  assertToStringEquals("ab c", res[831].firstMatch("ab c"), 2574);
-  assertNull(res[831].firstMatch("*** Failers"), 2575);
-  assertNull(res[831].firstMatch("abc"), 2576);
-  assertNull(res[831].firstMatch("ab cde"), 2577);
-  assertToStringEquals("a bcd", res[832].firstMatch("a bcd"), 2578);
-  assertNull(res[832].firstMatch("a b d"), 2579);
-  assertNull(res[832].firstMatch("*** Failers"), 2580);
-  assertNull(res[832].firstMatch("abcd"), 2581);
-  assertNull(res[832].firstMatch("ab d"), 2582);
-  assertToStringEquals("abcdefhijklm,abc,bc,c,def,ef,f,hij,ij,j,klm,lm,m",
-      res[833].firstMatch("abcdefhijklm"), 2583);
-  assertToStringEquals("abcdefhijklm,bc,c,ef,f,ij,j,lm,m",
-      res[834].firstMatch("abcdefhijklm"), 2584);
-  assertNull(res[835].firstMatch("a+ Z0+\x08\n\x1d\x12"), 2585);
-  assertNull(res[835].firstMatch(".^\$(*+)|{?,?}"), 2586);
-  assertToStringEquals("z", res[836].firstMatch("z"), 2587);
-  assertToStringEquals("az", res[836].firstMatch("az"), 2588);
-  assertToStringEquals("aaaz", res[836].firstMatch("aaaz"), 2589);
-  assertToStringEquals("a", res[836].firstMatch("a"), 2590);
-  assertToStringEquals("aa", res[836].firstMatch("aa"), 2591);
-  assertToStringEquals("aaaa", res[836].firstMatch("aaaa"), 2592);
-  assertToStringEquals("a", res[836].firstMatch("a+"), 2593);
-  assertToStringEquals("aa", res[836].firstMatch("aa+"), 2594);
-  assertToStringEquals("z", res[837].firstMatch("z"), 2595);
-  assertToStringEquals("a", res[837].firstMatch("az"), 2596);
-  assertToStringEquals("a", res[837].firstMatch("aaaz"), 2597);
-  assertToStringEquals("a", res[837].firstMatch("a"), 2598);
-  assertToStringEquals("a", res[837].firstMatch("aa"), 2599);
-  assertToStringEquals("a", res[837].firstMatch("aaaa"), 2600);
-  assertToStringEquals("a", res[837].firstMatch("a+"), 2601);
-  assertToStringEquals("a", res[837].firstMatch("aa+"), 2602);
-  assertToStringEquals("az", res[838].firstMatch("az"), 2603);
-  assertToStringEquals("aaaz", res[838].firstMatch("aaaz"), 2604);
-  assertToStringEquals("aa", res[838].firstMatch("aa"), 2605);
-  assertToStringEquals("aaaa", res[838].firstMatch("aaaa"), 2606);
-  assertToStringEquals("aa", res[838].firstMatch("aa+"), 2607);
-  assertToStringEquals("az", res[839].firstMatch("az"), 2608);
-  assertToStringEquals("aa", res[839].firstMatch("aaaz"), 2609);
-  assertToStringEquals("aa", res[839].firstMatch("aa"), 2610);
-  assertToStringEquals("aa", res[839].firstMatch("aaaa"), 2611);
-  assertToStringEquals("aa", res[839].firstMatch("aa+"), 2612);
-  assertToStringEquals("1234567890", res[840].firstMatch("1234567890"), 2613);
-  assertToStringEquals("12345678ab", res[840].firstMatch("12345678ab"), 2614);
-  assertToStringEquals("12345678__", res[840].firstMatch("12345678__"), 2615);
-  assertNull(res[840].firstMatch("*** Failers"), 2616);
-  assertNull(res[840].firstMatch("1234567"), 2617);
-  assertToStringEquals("uoie", res[841].firstMatch("uoie"), 2618);
-  assertToStringEquals("1234", res[841].firstMatch("1234"), 2619);
-  assertToStringEquals("12345", res[841].firstMatch("12345"), 2620);
-  assertToStringEquals("aaaaa", res[841].firstMatch("aaaaa"), 2621);
-  assertNull(res[841].firstMatch("*** Failers"), 2622);
-  assertNull(res[841].firstMatch("123456"), 2623);
-  assertToStringEquals("uoie", res[842].firstMatch("uoie"), 2624);
-  assertToStringEquals("1234", res[842].firstMatch("1234"), 2625);
-  assertToStringEquals("1234", res[842].firstMatch("12345"), 2626);
-  assertToStringEquals("aaaa", res[842].firstMatch("aaaaa"), 2627);
-  assertToStringEquals("1234", res[842].firstMatch("123456"), 2628);
-  assertToStringEquals("From abcd  Mon Sep 01 12:33,abcd",
-      res[843].firstMatch("From abcd  Mon Sep 01 12:33:02 1997"), 2629);
-  assertToStringEquals("From abcd  Mon Sep 01 12:33,Sep ",
-      res[844].firstMatch("From abcd  Mon Sep 01 12:33:02 1997"), 2630);
-  assertToStringEquals("From abcd  Mon Sep  1 12:33,Sep  ",
-      res[844].firstMatch("From abcd  Mon Sep  1 12:33:02 1997"), 2631);
-  assertNull(res[844].firstMatch("*** Failers"), 2632);
-  assertNull(res[844].firstMatch("From abcd  Sep 01 12:33:02 1997"), 2633);
-  assertNull(res[845].firstMatch("12\n34"), 2634);
-  assertNull(res[845].firstMatch("12\x0d34"), 2635);
-  assertToStringEquals(
-      "brown", res[846].firstMatch("the quick brown\x09 fox"), 2636);
-  assertToStringEquals("foolish see?,lish see?",
-      res[847].firstMatch("foobar is foolish see?"), 2637);
-  assertToStringEquals(
-      "rowbar etc, etc", res[848].firstMatch("foobar crowbar etc"), 2638);
-  assertToStringEquals("barrel,rel", res[848].firstMatch("barrel"), 2639);
-  assertToStringEquals("2barrel,rel", res[848].firstMatch("2barrel"), 2640);
-  assertToStringEquals("A barrel,rel", res[848].firstMatch("A barrel"), 2641);
-  assertToStringEquals("abc,abc", res[849].firstMatch("abc456"), 2642);
-  assertNull(res[849].firstMatch("*** Failers"), 2643);
-  assertNull(res[849].firstMatch("abc123"), 2644);
-  assertToStringEquals("1234", res[850].firstMatch("1234"), 2645);
-  assertToStringEquals("1234", res[851].firstMatch("1234"), 2646);
-  assertToStringEquals("abcd", res[852].firstMatch("abcd"), 2647);
-  assertToStringEquals("abcd", res[853].firstMatch("abcd"), 2648);
-  assertToStringEquals("abc", res[854].firstMatch("the abc"), 2649);
-  assertNull(res[854].firstMatch("*** Failers"), 2650);
-  assertNull(res[854].firstMatch("abc"), 2651);
-  assertToStringEquals("abc", res[855].firstMatch("abc"), 2652);
-  assertNull(res[855].firstMatch("*** Failers"), 2653);
-  assertNull(res[855].firstMatch("the abc"), 2654);
-  assertToStringEquals("aabb,b", res[856].firstMatch("aabbbbb"), 2655);
-  assertToStringEquals("aabbbbb,abbbbb", res[857].firstMatch("aabbbbb"), 2656);
-  assertToStringEquals("aa,a", res[858].firstMatch("aabbbbb"), 2657);
-  assertToStringEquals("aabb,b", res[859].firstMatch("aabbbbb"), 2658);
-  assertToStringEquals("Alan Other <user@dom.ain>",
-      res[860].firstMatch("Alan Other <user@dom.ain>"), 2659);
-  assertToStringEquals(
-      "user@dom.ain", res[860].firstMatch("<user@dom.ain>"), 2660);
-  assertToStringEquals(
-      "user@dom.ain", res[860].firstMatch("user@dom.ain"), 2661);
-  assertToStringEquals(
-      "\"A. Other\" <user.1234@dom.ain> (a comment)",
-      res[860].firstMatch("\"A. Other\" <user.1234@dom.ain> (a comment)"),
-      2662);
-  assertToStringEquals(" Other <user.1234@dom.ain> (a comment)",
-      res[860].firstMatch("A. Other <user.1234@dom.ain> (a comment)"), 2663);
-  assertToStringEquals(
-      "\"/s=user/ou=host/o=place/prmd=uu.yy/admd= /c=gb/\"@x400-re.lay",
-      res[860].firstMatch(
-          "\"/s=user/ou=host/o=place/prmd=uu.yy/admd= /c=gb/\"@x400-re.lay"),
-      2664);
-  assertToStringEquals("user@some.where",
-      res[860].firstMatch("A missing angle <user@some.where"), 2665);
-  assertNull(res[860].firstMatch("*** Failers"), 2666);
-  assertNull(res[860].firstMatch("The quick brown fox"), 2667);
-  assertToStringEquals("Alan Other <user@dom.ain>",
-      res[861].firstMatch("Alan Other <user@dom.ain>"), 2668);
-  assertToStringEquals(
-      "user@dom.ain", res[861].firstMatch("<user@dom.ain>"), 2669);
-  assertToStringEquals(
-      "user@dom.ain", res[861].firstMatch("user@dom.ain"), 2670);
-  assertToStringEquals(
-      "\"A. Other\" <user.1234@dom.ain>",
-      res[861].firstMatch("\"A. Other\" <user.1234@dom.ain> (a comment)"),
-      2671);
-  assertToStringEquals(" Other <user.1234@dom.ain>",
-      res[861].firstMatch("A. Other <user.1234@dom.ain> (a comment)"), 2672);
-  assertToStringEquals(
-      "\"/s=user/ou=host/o=place/prmd=uu.yy/admd= /c=gb/\"@x400-re.lay",
-      res[861].firstMatch(
-          "\"/s=user/ou=host/o=place/prmd=uu.yy/admd= /c=gb/\"@x400-re.lay"),
-      2673);
-  assertToStringEquals("user@some.where",
-      res[861].firstMatch("A missing angle <user@some.where"), 2674);
-  assertNull(res[861].firstMatch("*** Failers"), 2675);
-  assertNull(res[861].firstMatch("The quick brown fox"), 2676);
-  assertNull(res[861].firstMatch("abc\x00def\x00pqr\x00xyz\x000AB"), 2677);
-  assertNull(
-      res[861].firstMatch("abc456 abc\x00def\x00pqr\x00xyz\x000ABCDE"), 2678);
-  assertToStringEquals("abc\x0def\x00pqr\x000xyz\x0000AB",
-      res[862].firstMatch("abc\x0def\x00pqr\x000xyz\x0000AB"), 2679);
-  assertToStringEquals("abc\x0def\x00pqr\x000xyz\x0000AB",
-      res[862].firstMatch("abc456 abc\x0def\x00pqr\x000xyz\x0000ABCDE"), 2680);
-  assertToStringEquals("\x00", res[863].firstMatch("\x00A"), 2681);
-  assertToStringEquals("\x01", res[863].firstMatch("\x01B"), 2682);
-  assertToStringEquals("\x1f", res[863].firstMatch("\x1fC"), 2683);
-  assertToStringEquals(
-      "\x00\x00\x00\x00", res[864].firstMatch("\x00\x00\x00\x00"), 2684);
-  assertNull(res[865].firstMatch("The Ax0x0Z"), 2685);
-  assertNull(res[865].firstMatch("An A\x00x0\x00Z"), 2686);
-  assertNull(res[865].firstMatch("*** Failers"), 2687);
-  assertNull(res[865].firstMatch("A\x00Z"), 2688);
-  assertNull(res[865].firstMatch("A\x00x0\x00x0Z"), 2689);
-  assertToStringEquals(" ", res[866].firstMatch(" abc"), 2690);
-  assertToStringEquals("\x0c", res[866].firstMatch("\x0cabc"), 2691);
-  assertToStringEquals("\n", res[866].firstMatch("\nabc"), 2692);
-  assertToStringEquals("\x0d", res[866].firstMatch("\x0dabc"), 2693);
-  assertToStringEquals("\x09", res[866].firstMatch("\x09abc"), 2694);
-  assertNull(res[866].firstMatch("*** Failers"), 2695);
-  assertNull(res[866].firstMatch("abc"), 2696);
-  assertToStringEquals("abc", res[867].firstMatch("abc"), 2697);
-  assertToStringEquals("abbbbc", res[868].firstMatch("abbbbc"), 2698);
-  assertToStringEquals("abbbc", res[868].firstMatch("abbbc"), 2699);
-  assertToStringEquals("abbc", res[868].firstMatch("abbc"), 2700);
-  assertNull(res[868].firstMatch("*** Failers"), 2701);
-  assertNull(res[868].firstMatch("abc"), 2702);
-  assertNull(res[868].firstMatch("abbbbbc"), 2703);
-  assertToStringEquals(
-      "track1.title:TBlah blah blah,track1,title,Blah blah blah",
-      res[869].firstMatch("track1.title:TBlah blah blah"),
-      2704);
-  assertToStringEquals(
-      "track1.title:TBlah blah blah,track1,title,Blah blah blah",
-      res[870].firstMatch("track1.title:TBlah blah blah"),
-      2705);
-  assertToStringEquals(
-      "track1.title:TBlah blah blah,track1,title,Blah blah blah",
-      res[871].firstMatch("track1.title:TBlah blah blah"),
-      2706);
-  assertToStringEquals("WXY_^abc", res[872].firstMatch("WXY_^abc"), 2707);
-  assertNull(res[872].firstMatch("*** Failers"), 2708);
-  assertNull(res[872].firstMatch("wxy"), 2709);
-  assertToStringEquals("WXY_^abc", res[873].firstMatch("WXY_^abc"), 2710);
-  assertToStringEquals("wxy_^ABC", res[873].firstMatch("wxy_^ABC"), 2711);
-  assertToStringEquals("WXY_^abc", res[874].firstMatch("WXY_^abc"), 2712);
-  assertToStringEquals("wxy_^ABC", res[874].firstMatch("wxy_^ABC"), 2713);
-  assertToStringEquals("abc", res[875].firstMatch("abc"), 2714);
-  assertToStringEquals("abc", res[875].firstMatch("qqq\nabc"), 2715);
-  assertToStringEquals("abc", res[875].firstMatch("abc\nzzz"), 2716);
-  assertToStringEquals("abc", res[875].firstMatch("qqq\nabc\nzzz"), 2717);
-  assertToStringEquals("abc", res[876].firstMatch("abc"), 2718);
-  assertNull(res[876].firstMatch("*** Failers"), 2719);
-  assertNull(res[876].firstMatch("qqq\nabc"), 2720);
-  assertNull(res[876].firstMatch("abc\nzzz"), 2721);
-  assertNull(res[876].firstMatch("qqq\nabc\nzzz"), 2722);
-  assertNull(res[877].firstMatch("abc"), 2723);
-  assertNull(res[877].firstMatch("abc\n "), 2724);
-  assertNull(res[877].firstMatch("*** Failers"), 2725);
-  assertNull(res[877].firstMatch("qqq\nabc"), 2726);
-  assertNull(res[877].firstMatch("abc\nzzz"), 2727);
-  assertNull(res[877].firstMatch("qqq\nabc\nzzz"), 2728);
-  assertNull(res[878].firstMatch("abc\ndef"), 2729);
-  assertNull(res[879].firstMatch("*** Failers"), 2730);
-  assertNull(res[879].firstMatch("abc\ndef"), 2731);
-  assertToStringEquals("b", res[880].firstMatch("b::c"), 2732);
-  assertToStringEquals("::", res[880].firstMatch("c::b"), 2733);
-  assertToStringEquals("az-", res[881].firstMatch("az-"), 2734);
-  assertToStringEquals("a", res[881].firstMatch("*** Failers"), 2735);
-  assertNull(res[881].firstMatch("b"), 2736);
-  assertToStringEquals("za-", res[882].firstMatch("za-"), 2737);
-  assertToStringEquals("a", res[882].firstMatch("*** Failers"), 2738);
-  assertNull(res[882].firstMatch("b"), 2739);
-  assertToStringEquals("a-z", res[883].firstMatch("a-z"), 2740);
-  assertToStringEquals("a", res[883].firstMatch("*** Failers"), 2741);
-  assertNull(res[883].firstMatch("b"), 2742);
-  assertToStringEquals("abcdxyz", res[884].firstMatch("abcdxyz"), 2743);
-  assertToStringEquals("12-34", res[885].firstMatch("12-34"), 2744);
-  assertNull(res[885].firstMatch("*** Failers"), 2745);
-  assertNull(res[885].firstMatch("aaa"), 2746);
-  assertToStringEquals("12-34z", res[886].firstMatch("12-34z"), 2747);
-  assertNull(res[886].firstMatch("*** Failers"), 2748);
-  assertNull(res[886].firstMatch("aaa"), 2749);
-  assertToStringEquals("\\", res[887].firstMatch("\\\\"), 2750);
-  assertToStringEquals(" Z", res[888].firstMatch("the Zoo"), 2751);
-  assertNull(res[888].firstMatch("*** Failers"), 2752);
-  assertNull(res[888].firstMatch("Zulu"), 2753);
-  assertToStringEquals("ab{3cd", res[889].firstMatch("ab{3cd"), 2754);
-  assertToStringEquals("ab{3,cd", res[890].firstMatch("ab{3,cd"), 2755);
-  assertToStringEquals("ab{3,4a}cd", res[891].firstMatch("ab{3,4a}cd"), 2756);
-  assertToStringEquals("{4,5a}bc", res[892].firstMatch("{4,5a}bc"), 2757);
-  assertNull(res[893].firstMatch("a\x0db"), 2758);
-  assertNull(res[893].firstMatch("*** Failers"), 2759);
-  assertNull(res[893].firstMatch("a\nb"), 2760);
-  assertToStringEquals("abc", res[894].firstMatch("abc"), 2761);
-  assertNull(res[894].firstMatch("abc\n"), 2762);
-  assertNull(res[894].firstMatch("*** Failers"), 2763);
-  assertNull(res[894].firstMatch("abc\ndef"), 2764);
-  assertToStringEquals("abcS,abc", res[895].firstMatch("abcS"), 2765);
-  assertToStringEquals("abc\x93,abc", res[896].firstMatch("abc\x93"), 2766);
-  assertToStringEquals("abc\xd3,abc", res[897].firstMatch("abc\xd3"), 2767);
-  assertToStringEquals("abc@,abc", res[898].firstMatch("abc@"), 2768);
-  assertToStringEquals("abc@,abc", res[898].firstMatch("abc@"), 2769);
-  assertToStringEquals("abc@,abc", res[898].firstMatch("abc@0"), 2770);
-  assertToStringEquals("abc@,abc", res[898].firstMatch("abc@0"), 2771);
-  assertToStringEquals("abc@,abc", res[898].firstMatch("abc@0"), 2772);
-  assertToStringEquals("abc@,abc", res[898].firstMatch("abc@0"), 2773);
-  assertToStringEquals("abc@,abc", res[898].firstMatch("abc@0"), 2774);
-  assertToStringEquals("abc@,abc", res[898].firstMatch("abc@0"), 2775);
-  assertNull(res[899].firstMatch("abc\x0081"), 2776);
-  assertNull(res[899].firstMatch("abc\x0081"), 2777);
-  assertNull(res[900].firstMatch("abc\x0091"), 2778);
-  assertNull(res[900].firstMatch("abc\x0091"), 2779);
-  assertToStringEquals("abcdefghijk\nS,a,b,c,d,e,f,g,h,i,j,k",
-      res[901].firstMatch("abcdefghijk\nS"), 2780);
-  assertToStringEquals("abidef", res[902].firstMatch("abidef"), 2781);
-  assertToStringEquals("bc", res[903].firstMatch("bc"), 2782);
-  assertToStringEquals("xyz,,", res[904].firstMatch("xyz"), 2783);
-  assertToStringEquals("abc\x08de", res[905].firstMatch("abc\x08de"), 2784);
-  assertToStringEquals("abc\x01de", res[906].firstMatch("abc\x01de"), 2785);
-  assertToStringEquals("abc\x01de,abc", res[907].firstMatch("abc\x01de"), 2786);
-  assertNull(res[907].firstMatch("a\nb"), 2787);
-  assertToStringEquals(
-      "baNOTcccc,b,a,NOT,cccc", res[908].firstMatch("baNOTccccd"), 2788);
-  assertToStringEquals(
-      "baNOTccc,b,a,NOT,ccc", res[908].firstMatch("baNOTcccd"), 2789);
-  assertToStringEquals(
-      "baNOTcc,b,a,NO,Tcc", res[908].firstMatch("baNOTccd"), 2790);
-  assertToStringEquals("baccc,b,a,,ccc", res[908].firstMatch("bacccd"), 2791);
-  assertToStringEquals(
-      "*** Failers,*,*,* Fail,ers", res[908].firstMatch("*** Failers"), 2792);
-  assertNull(res[908].firstMatch("anything"), 2793);
-  assertNull(res[908].firstMatch("b\x08c   "), 2794);
-  assertNull(res[908].firstMatch("baccd"), 2795);
-  assertToStringEquals("A", res[909].firstMatch("Abc"), 2796);
-  assertToStringEquals("b", res[910].firstMatch("Abc "), 2797);
-  assertToStringEquals("AAA", res[911].firstMatch("AAAaAbc"), 2798);
-  assertToStringEquals("bc ", res[912].firstMatch("AAAaAbc "), 2799);
-  assertToStringEquals("bbb\nccc", res[913].firstMatch("bbb\nccc"), 2800);
-  assertToStringEquals("c", res[914].firstMatch("abc"), 2801);
-  assertToStringEquals("s", res[914].firstMatch("*** Failers"), 2802);
-  assertToStringEquals(" ", res[914].firstMatch("abk   "), 2803);
-  assertToStringEquals("abc", res[915].firstMatch("abc"), 2804);
-  assertToStringEquals("bc", res[915].firstMatch("kbc"), 2805);
-  assertToStringEquals("bc ", res[915].firstMatch("kabc "), 2806);
-  assertToStringEquals("ers", res[915].firstMatch("*** Failers"), 2807);
-  assertNull(res[915].firstMatch("abk"), 2808);
-  assertNull(res[915].firstMatch("akb"), 2809);
-  assertNull(res[915].firstMatch("akk "), 2810);
-  assertToStringEquals(
-      "12345678@a.b.c.d", res[916].firstMatch("12345678@a.b.c.d"), 2811);
-  assertToStringEquals(
-      "123456789@x.y.z", res[916].firstMatch("123456789@x.y.z"), 2812);
-  assertNull(res[916].firstMatch("*** Failers"), 2813);
-  assertNull(res[916].firstMatch("12345678@x.y.uk"), 2814);
-  assertNull(res[916].firstMatch("1234567@a.b.c.d       "), 2815);
-  assertToStringEquals("b", res[917].firstMatch("aaaabcd"), 2816);
-  assertToStringEquals("A", res[917].firstMatch("aaAabcd "), 2817);
-  assertToStringEquals("b", res[918].firstMatch("aaaabcd"), 2818);
-  assertToStringEquals("b", res[918].firstMatch("aaAabcd "), 2819);
-  assertToStringEquals("b", res[919].firstMatch("aaaabcd"), 2820);
-  assertToStringEquals("A", res[919].firstMatch("aaAabcd "), 2821);
-  assertToStringEquals("b", res[920].firstMatch("aaaabcd"), 2822);
-  assertToStringEquals("b", res[920].firstMatch("aaAabcd "), 2823);
-  assertToStringEquals("PSTAIREISLL",
-      res[922].firstMatch("xxxxxxxxxxxPSTAIREISLLxxxxxxxxx"), 2824);
-  assertToStringEquals("PSTAIREISLL",
-      res[923].firstMatch("xxxxxxxxxxxPSTAIREISLLxxxxxxxxx"), 2825);
-  assertToStringEquals(
-      ".230003938,.23", res[924].firstMatch("1.230003938"), 2826);
-  assertToStringEquals(
-      ".875000282,.875", res[924].firstMatch("1.875000282   "), 2827);
-  assertToStringEquals(".235,.23", res[924].firstMatch("1.235  "), 2828);
-  assertNull(res[924].firstMatch("              "), 2829);
-  assertToStringEquals(
-      ".23,.23,", res[925].firstMatch("1.230003938      "), 2830);
-  assertToStringEquals(".875,.875,5", res[925].firstMatch("1.875000282"), 2831);
-  assertNull(res[925].firstMatch("*** Failers "), 2832);
-  assertNull(res[925].firstMatch("1.235 "), 2833);
-  assertThrows(() => new RegExp(r"a(?)b"), 2834);
-  assertNull(res[925].firstMatch("ab "), 2835);
-  assertToStringEquals("foo table,foo,table",
-      res[926].firstMatch("Food is on the foo table"), 2836);
-  assertToStringEquals(
-      "food is under the bar in the bar,d is under the bar in the ",
-      res[927].firstMatch("The food is under the bar in the barn."),
-      2837);
-  assertToStringEquals("food is under the bar,d is under the ",
-      res[928].firstMatch("The food is under the bar in the barn."), 2838);
-  assertToStringEquals("I have 2 numbers: 53147,I have 2 numbers: 53147,",
-      res[929].firstMatch("I have 2 numbers: 53147"), 2839);
-  assertToStringEquals("I have 2 numbers: 53147,I have 2 numbers: 5314,7",
-      res[930].firstMatch("I have 2 numbers: 53147"), 2840);
-  assertToStringEquals(
-      ",,", res[931].firstMatch("I have 2 numbers: 53147"), 2841);
-  assertToStringEquals("I have 2,I have ,2",
-      res[932].firstMatch("I have 2 numbers: 53147"), 2842);
-  assertToStringEquals("I have 2 numbers: 53147,I have 2 numbers: 5314,7",
-      res[933].firstMatch("I have 2 numbers: 53147"), 2843);
-  assertToStringEquals("I have 2 numbers: 53147,I have 2 numbers: ,53147",
-      res[934].firstMatch("I have 2 numbers: 53147"), 2844);
-  assertToStringEquals("I have 2 numbers: 53147,I have 2 numbers: ,53147",
-      res[935].firstMatch("I have 2 numbers: 53147"), 2845);
-  assertToStringEquals("I have 2 numbers: 53147,I have 2 numbers: ,53147",
-      res[936].firstMatch("I have 2 numbers: 53147"), 2846);
-  assertToStringEquals("AB", res[937].firstMatch("ABC123"), 2847);
-  assertToStringEquals(" ", res[937].firstMatch(" "), 2848);
-  assertToStringEquals("ABC,ABC", res[938].firstMatch("ABC445"), 2849);
-  assertNull(res[938].firstMatch("*** Failers"), 2850);
-  assertNull(res[938].firstMatch("ABC123"), 2851);
-  assertToStringEquals("W46]", res[939].firstMatch("W46]789 "), 2852);
-  assertToStringEquals("-46]", res[939].firstMatch("-46]789"), 2853);
-  assertNull(res[939].firstMatch("*** Failers"), 2854);
-  assertNull(res[939].firstMatch("Wall"), 2855);
-  assertNull(res[939].firstMatch("Zebra"), 2856);
-  assertNull(res[939].firstMatch("42"), 2857);
-  assertNull(res[939].firstMatch("[abcd] "), 2858);
-  assertNull(res[939].firstMatch("]abcd["), 2859);
-  assertNull(res[939].firstMatch("   "), 2860);
-  assertToStringEquals("W", res[940].firstMatch("W46]789 "), 2861);
-  assertToStringEquals("W", res[940].firstMatch("Wall"), 2862);
-  assertToStringEquals("Z", res[940].firstMatch("Zebra"), 2863);
-  assertToStringEquals("X", res[940].firstMatch("Xylophone  "), 2864);
-  assertToStringEquals("4", res[940].firstMatch("42"), 2865);
-  assertToStringEquals("[", res[940].firstMatch("[abcd] "), 2866);
-  assertToStringEquals("]", res[940].firstMatch("]abcd["), 2867);
-  assertToStringEquals("\\", res[940].firstMatch("\\backslash "), 2868);
-  assertNull(res[940].firstMatch("*** Failers"), 2869);
-  assertNull(res[940].firstMatch("-46]789"), 2870);
-  assertNull(res[940].firstMatch("well"), 2871);
-  assertToStringEquals("01/01/2000", res[941].firstMatch("01/01/2000"), 2872);
-  assertToStringEquals("01/01/2000", res[941].firstMatch("01/01/2000"), 2872);
-  assertToStringEquals(",", res[944].firstMatch("bcd"), 2873);
-  assertToStringEquals(",", res[944].firstMatch("abc"), 2874);
-  assertToStringEquals(",", res[944].firstMatch("aab     "), 2875);
-  assertToStringEquals(",", res[945].firstMatch("bcd"), 2876);
-  assertToStringEquals("a,a", res[945].firstMatch("abc"), 2877);
-  assertToStringEquals("a,a", res[945].firstMatch("aab  "), 2878);
-  assertToStringEquals(",", res[946].firstMatch("bcd"), 2879);
-  assertToStringEquals("a,a", res[946].firstMatch("abc"), 2880);
-  assertToStringEquals("aa,a", res[946].firstMatch("aab  "), 2881);
-  assertToStringEquals(",", res[947].firstMatch("bcd"), 2882);
-  assertToStringEquals("a,a", res[947].firstMatch("abc"), 2883);
-  assertToStringEquals("aa,a", res[947].firstMatch("aab"), 2884);
-  assertToStringEquals("aaa,a", res[947].firstMatch("aaa   "), 2885);
-  assertToStringEquals(",", res[948].firstMatch("bcd"), 2886);
-  assertToStringEquals("a,a", res[948].firstMatch("abc"), 2887);
-  assertToStringEquals("aa,a", res[948].firstMatch("aab"), 2888);
-  assertToStringEquals("aaa,a", res[948].firstMatch("aaa"), 2889);
-  assertToStringEquals("aaaaaaaa,a", res[948].firstMatch("aaaaaaaa    "), 2890);
-  assertNull(res[949].firstMatch("bcd"), 2891);
-  assertToStringEquals("a,a", res[949].firstMatch("abc"), 2892);
-  assertToStringEquals("a,a", res[949].firstMatch("aab  "), 2893);
-  assertNull(res[950].firstMatch("bcd"), 2894);
-  assertToStringEquals("a,a", res[950].firstMatch("abc"), 2895);
-  assertToStringEquals("aa,a", res[950].firstMatch("aab  "), 2896);
-  assertNull(res[951].firstMatch("bcd"), 2897);
-  assertToStringEquals("a,a", res[951].firstMatch("abc"), 2898);
-  assertToStringEquals("aa,a", res[951].firstMatch("aab"), 2899);
-  assertToStringEquals("aaa,a", res[951].firstMatch("aaa   "), 2900);
-  assertNull(res[952].firstMatch("bcd"), 2901);
-  assertToStringEquals("a,a", res[952].firstMatch("abc"), 2902);
-  assertToStringEquals("aa,a", res[952].firstMatch("aab"), 2903);
-  assertToStringEquals("aaa,a", res[952].firstMatch("aaa"), 2904);
-  assertToStringEquals("aaaaaaaa,a", res[952].firstMatch("aaaaaaaa    "), 2905);
-  assertToStringEquals(
-      "bib.gif", res[953].firstMatch("borfle\nbib.gif\nno"), 2906);
-  assertToStringEquals(
-      "bib.gif", res[954].firstMatch("borfle\nbib.gif\nno"), 2907);
-  assertToStringEquals(
-      "bib.gif", res[955].firstMatch("borfle\nbib.gif\nno"), 2908);
-  assertToStringEquals(
-      "bib.gif", res[956].firstMatch("borfle\nbib.gif\nno"), 2909);
-  assertToStringEquals(
-      "bib.gif", res[957].firstMatch("borfle\nbib.gif\nno"), 2910);
-  assertToStringEquals("no", res[958].firstMatch("borfle\nbib.gif\nno"), 2911);
-  assertToStringEquals(
-      "borfle", res[959].firstMatch("borfle\nbib.gif\nno"), 2912);
-  assertToStringEquals("no", res[960].firstMatch("borfle\nbib.gif\nno"), 2913);
-  assertToStringEquals(
-      "borfle", res[961].firstMatch("borfle\nbib.gif\nno"), 2914);
-  assertToStringEquals("", res[962].firstMatch("borfle\nbib.gif\nno\n"), 2915);
-  assertToStringEquals(
-      "borfle", res[963].firstMatch("borfle\nbib.gif\nno\n"), 2916);
-  assertToStringEquals("", res[964].firstMatch("borfle\nbib.gif\nno\n"), 2917);
-  assertToStringEquals(
-      "borfle", res[965].firstMatch("borfle\nbib.gif\nno\n"), 2918);
-  assertToStringEquals(
-      "1234X,1234X", res[966].firstMatch("abcde\n1234Xyz"), 2919);
-  assertToStringEquals("B,B", res[966].firstMatch("BarFoo "), 2920);
-  assertNull(res[966].firstMatch("*** Failers"), 2921);
-  assertNull(res[966].firstMatch("abcde\nBar  "), 2922);
-  assertToStringEquals(
-      "1234X,1234X", res[967].firstMatch("abcde\n1234Xyz"), 2923);
-  assertToStringEquals("B,B", res[967].firstMatch("BarFoo "), 2924);
-  assertToStringEquals("B,B", res[967].firstMatch("abcde\nBar  "), 2925);
-  assertToStringEquals(
-      "1234X,1234X", res[968].firstMatch("abcde\n1234Xyz"), 2926);
-  assertToStringEquals("B,B", res[968].firstMatch("BarFoo "), 2927);
-  assertNull(res[968].firstMatch("*** Failers"), 2928);
-  assertNull(res[968].firstMatch("abcde\nBar  "), 2929);
-  assertToStringEquals(
-      "1234X,1234X", res[969].firstMatch("abcde\n1234Xyz"), 2930);
-  assertToStringEquals("B,B", res[969].firstMatch("BarFoo "), 2931);
-  assertToStringEquals("B,B", res[969].firstMatch("abcde\nBar  "), 2932);
-  assertToStringEquals(
-      "1234X,1234X", res[969].firstMatch("abcde\n1234Xyz"), 2933);
-  assertToStringEquals("B,B", res[969].firstMatch("BarFoo "), 2934);
-  assertNull(res[969].firstMatch("*** Failers "), 2935);
-  assertToStringEquals("B,B", res[969].firstMatch("abcde\nBar  "), 2936);
-  assertToStringEquals(
-      "1234X,1234X", res[969].firstMatch("abcde\n1234Xyz"), 2937);
-  assertToStringEquals("B,B", res[969].firstMatch("BarFoo "), 2938);
-  assertNull(res[969].firstMatch("*** Failers "), 2939);
-  assertToStringEquals("B,B", res[969].firstMatch("abcde\nBar  "), 2940);
-  assertNull(res[970].firstMatch("**** Failers"), 2941);
-  assertNull(res[970].firstMatch("abc\nB"), 2942);
-  assertNull(res[970].firstMatch(" "), 2943);
-  assertNull(res[970].firstMatch("abc\nB"), 2944);
-  assertNull(res[970].firstMatch("abc\nB"), 2945);
-  assertNull(res[970].firstMatch(" "), 2946);
-  assertNull(res[970].firstMatch("abc\nB"), 2947);
-  assertNull(res[970].firstMatch("abc\nB"), 2948);
-  assertToStringEquals("B", res[970].firstMatch("B\n"), 2949);
-  assertToStringEquals(
-      "123456654321", res[971].firstMatch("123456654321"), 2950);
-  assertToStringEquals(
-      "123456654321", res[972].firstMatch("123456654321 "), 2951);
-  assertToStringEquals(
-      "123456654321", res[973].firstMatch("123456654321"), 2952);
-  assertToStringEquals(
-      "abcabcabcabc", res[974].firstMatch("abcabcabcabc"), 2953);
-  assertToStringEquals(
-      "abcabcabcabc", res[975].firstMatch("abcabcabcabc"), 2954);
-  assertToStringEquals(
-      "abcabcabcabc,c", res[976].firstMatch("abcabcabcabc "), 2955);
-  assertToStringEquals("n", res[977].firstMatch("n"), 2956);
-  assertNull(res[977].firstMatch("*** Failers "), 2957);
-  assertNull(res[977].firstMatch("z "), 2958);
-  assertToStringEquals("abcd", res[978].firstMatch("abcd"), 2959);
-  assertNull(res[978].firstMatch("*** Failers"), 2960);
-  assertNull(res[978].firstMatch("abce  "), 2961);
-  assertToStringEquals("abe", res[979].firstMatch("abe"), 2962);
-  assertNull(res[979].firstMatch("*** Failers"), 2963);
-  assertNull(res[979].firstMatch("abcde "), 2964);
-  assertToStringEquals("abd,", res[980].firstMatch("abd"), 2965);
-  assertNull(res[980].firstMatch("*** Failers"), 2966);
-  assertNull(res[980].firstMatch("abcd   "), 2967);
-  assertToStringEquals("a,", res[981].firstMatch("a"), 2968);
-  assertToStringEquals("ab,b", res[981].firstMatch("ab"), 2969);
-  assertToStringEquals("abbbb,bbbb", res[981].firstMatch("abbbb"), 2970);
-  assertToStringEquals("a,", res[981].firstMatch("*** Failers"), 2971);
-  assertNull(res[981].firstMatch("bbbbb    "), 2972);
-  assertToStringEquals("abe", res[982].firstMatch("abe"), 2973);
-  assertNull(res[982].firstMatch("*** Failers"), 2974);
-  assertNull(res[982].firstMatch("ab1e   "), 2975);
-  assertToStringEquals(
-      "\"quick\",quick", res[983].firstMatch("the \"quick\" brown fox"), 2976);
-  assertToStringEquals("\"the \\\"quick\\\" brown fox\", brown fox",
-      res[983].firstMatch("\"the \\\"quick\\\" brown fox\" "), 2977);
-  assertToStringEquals("", res[984].firstMatch("abc"), 2978);
-  assertToStringEquals("", res[985].firstMatch("abc "), 2979);
-  assertToStringEquals("", res[986].firstMatch("abc "), 2980);
-  // Dart does not have RegExp literals and thus no translatation of the below.
-  // assertThrows("var re = //;", 2981);
-  assertToStringEquals("", res[986].firstMatch("abc"), 2982);
-  assertToStringEquals("acb", res[988].firstMatch("acb"), 2983);
-  assertToStringEquals("a\nb", res[988].firstMatch("a\nb"), 2984);
-  assertToStringEquals("acb", res[989].firstMatch("acb"), 2985);
-  assertNull(res[989].firstMatch("*** Failers "), 2986);
-  assertNull(res[989].firstMatch("a\nb   "), 2987);
-  assertToStringEquals("acb", res[990].firstMatch("acb"), 2988);
-  assertToStringEquals("a\nb", res[990].firstMatch("a\nb  "), 2989);
-  assertToStringEquals("acb", res[991].firstMatch("acb"), 2990);
-  assertNull(res[991].firstMatch("a\nb  "), 2991);
-  assertToStringEquals("bac,a", res[992].firstMatch("bac"), 2992);
-  assertToStringEquals("bbac,a", res[992].firstMatch("bbac"), 2993);
-  assertToStringEquals("bbbac,a", res[992].firstMatch("bbbac"), 2994);
-  assertToStringEquals("bbbbac,a", res[992].firstMatch("bbbbac"), 2995);
-  assertToStringEquals("bbbbbac,a", res[992].firstMatch("bbbbbac "), 2996);
-  assertToStringEquals("bac,a", res[993].firstMatch("bac"), 2997);
-  assertToStringEquals("bbac,a", res[993].firstMatch("bbac"), 2998);
-  assertToStringEquals("bbbac,a", res[993].firstMatch("bbbac"), 2999);
-  assertToStringEquals("bbbbac,a", res[993].firstMatch("bbbbac"), 3000);
-  assertToStringEquals("bbbbbac,a", res[993].firstMatch("bbbbbac "), 3001);
-  assertToStringEquals("x", res[994].firstMatch("x\nb\n"), 3002);
-  assertToStringEquals("x", res[994].firstMatch("a\x08x\n  "), 3003);
-  assertNull(res[995].firstMatch("\x00{ab} "), 3004);
-  assertToStringEquals("CD,", res[996].firstMatch("CD "), 3005);
-  assertToStringEquals("CD,", res[997].firstMatch("CD "), 3006);
-  assertNull(res[997].firstMatch("foo"), 3007);
-  assertNull(res[997].firstMatch("catfood"), 3008);
-  assertNull(res[997].firstMatch("arfootle"), 3009);
-  assertNull(res[997].firstMatch("rfoosh"), 3010);
-  assertNull(res[997].firstMatch("*** Failers"), 3011);
-  assertNull(res[997].firstMatch("barfoo"), 3012);
-  assertNull(res[997].firstMatch("towbarfoo"), 3013);
-  assertNull(res[997].firstMatch("catfood"), 3014);
-  assertNull(res[997].firstMatch("*** Failers"), 3015);
-  assertNull(res[997].firstMatch("foo"), 3016);
-  assertNull(res[997].firstMatch("barfoo"), 3017);
-  assertNull(res[997].firstMatch("towbarfoo"), 3018);
-  assertNull(res[997].firstMatch("fooabar"), 3019);
-  assertNull(res[997].firstMatch("*** Failers"), 3020);
-  assertNull(res[997].firstMatch("bar"), 3021);
-  assertNull(res[997].firstMatch("foobbar"), 3022);
-  assertNull(res[997].firstMatch("  "), 3023);
-  assertNull(res[998].firstMatch("abc"), 3024);
-  assertNull(res[998].firstMatch("*** Failers"), 3025);
-  assertNull(res[998].firstMatch("abc\n   "), 3026);
-  assertNull(res[998].firstMatch("qqq\nabc"), 3027);
-  assertNull(res[998].firstMatch("abc\nzzz"), 3028);
-  assertNull(res[998].firstMatch("qqq\nabc\nzzz"), 3029);
-  assertNull(
-      res[998].firstMatch(
-          "/this/is/a/very/long/line/in/deed/with/very/many/slashes/in/it/you/see/"),
-      3030);
-  assertNull(
-      res[998].firstMatch(
-          "/this/is/a/very/long/line/in/deed/with/very/many/slashes/in/and/foo"),
-      3031);
-  assertNull(res[998].firstMatch("1.230003938"), 3032);
-  assertNull(res[998].firstMatch("1.875000282"), 3033);
-  assertNull(res[998].firstMatch("*** Failers "), 3034);
-  assertNull(res[998].firstMatch("1.235 "), 3035);
-  assertNull(
-      res[998].firstMatch(
-          "now is the time for all good men to come to the aid of the party"),
-      3036);
-  assertNull(res[998].firstMatch("*** Failers"), 3037);
-  assertNull(
-      res[998].firstMatch("this is not a line with only words and spaces!"),
-      3038);
-  assertToStringEquals("12345a,12345,a", res[999].firstMatch("12345a"), 3039);
-  assertToStringEquals("12345,1234,5", res[999].firstMatch("12345+ "), 3040);
-  assertToStringEquals("12345a,12345,a", res[999].firstMatch("12345a"), 3041);
-  assertNull(res[999].firstMatch("*** Failers"), 3042);
-  assertToStringEquals("12345,1234,5", res[999].firstMatch("12345+ "), 3043);
-  assertNull(res[999].firstMatch("aaab"), 3044);
-  assertNull(res[999].firstMatch("aaab"), 3045);
-  assertNull(res[999].firstMatch("aaab"), 3046);
-  assertNull(res[999].firstMatch("aaabbbccc"), 3047);
-  assertNull(res[999].firstMatch("aaabbbbccccd"), 3048);
-  assertToStringEquals(
-      "aaabbbbcccc,ccc", res[1000].firstMatch("aaabbbbccccd"), 3049);
-  assertToStringEquals(
-      "abc,b", res[1000].firstMatch("((abc(ade)ufh()()x"), 3050);
-  assertNull(res[1000].firstMatch(""), 3051);
-  assertToStringEquals("abc,b", res[1000].firstMatch("(abc)"), 3052);
-  assertToStringEquals("abc,b", res[1000].firstMatch("(abc(def)xyz)"), 3053);
-  assertNull(res[1000].firstMatch("*** Failers"), 3054);
-  assertNull(res[1000].firstMatch("ab"), 3055);
-  assertNull(res[1000].firstMatch("Ab"), 3056);
-  assertNull(res[1000].firstMatch("*** Failers "), 3057);
-  assertNull(res[1000].firstMatch("aB"), 3058);
-  assertNull(res[1000].firstMatch("AB"), 3059);
-  assertNull(res[1000].firstMatch("    "), 3060);
-  assertToStringEquals("bc,b", res[1000].firstMatch("a bcd e"), 3061);
-  assertNull(res[1000].firstMatch("*** Failers"), 3062);
-  assertToStringEquals("c,", res[1000].firstMatch("a b cd e"), 3063);
-  assertToStringEquals("abc,b", res[1000].firstMatch("abcd e   "), 3064);
-  assertToStringEquals("bc,b", res[1000].firstMatch("a bcde "), 3065);
-  assertToStringEquals("bc,b", res[1000].firstMatch("a bcde f"), 3066);
-  assertNull(res[1000].firstMatch("*** Failers"), 3067);
-  assertToStringEquals("abc,b", res[1000].firstMatch("abcdef  "), 3068);
-  assertToStringEquals("abc,b", res[1000].firstMatch("abc"), 3069);
-  assertToStringEquals("c,", res[1000].firstMatch("aBc"), 3070);
-  assertNull(res[1000].firstMatch("*** Failers"), 3071);
-  assertNull(res[1000].firstMatch("abC"), 3072);
-  assertNull(res[1000].firstMatch("aBC  "), 3073);
-  assertToStringEquals("bc,b", res[1000].firstMatch("Abc"), 3074);
-  assertToStringEquals("c,", res[1000].firstMatch("ABc"), 3075);
-  assertNull(res[1000].firstMatch("ABC"), 3076);
-  assertNull(res[1000].firstMatch("AbC"), 3077);
-  assertNull(res[1000].firstMatch(""), 3078);
-  assertToStringEquals("abc,b", res[1000].firstMatch("abc"), 3079);
-  assertToStringEquals("c,", res[1000].firstMatch("aBc"), 3080);
-  assertNull(res[1000].firstMatch("*** Failers "), 3081);
-  assertNull(res[1000].firstMatch("ABC"), 3082);
-  assertNull(res[1000].firstMatch("abC"), 3083);
-  assertNull(res[1000].firstMatch("aBC"), 3084);
-  assertNull(res[1000].firstMatch(""), 3085);
-  assertToStringEquals("c,", res[1000].firstMatch("aBc"), 3086);
-  assertToStringEquals("c,", res[1000].firstMatch("aBBc"), 3087);
-  assertNull(res[1000].firstMatch("*** Failers "), 3088);
-  assertNull(res[1000].firstMatch("aBC"), 3089);
-  assertNull(res[1000].firstMatch("aBBC"), 3090);
-  assertNull(res[1000].firstMatch(""), 3091);
-  assertToStringEquals("abc,b", res[1000].firstMatch("abcd"), 3092);
-  assertNull(res[1000].firstMatch("abCd"), 3093);
-  assertNull(res[1000].firstMatch("*** Failers"), 3094);
-  assertNull(res[1000].firstMatch("aBCd"), 3095);
-  assertToStringEquals("abc,b", res[1000].firstMatch("abcD     "), 3096);
-  assertNull(res[1000].firstMatch(""), 3097);
-  assertNull(res[1000].firstMatch("more than million"), 3098);
-  assertNull(res[1000].firstMatch("more than MILLION"), 3099);
-  assertNull(res[1000].firstMatch("more \n than Million "), 3100);
-  assertNull(res[1000].firstMatch("*** Failers"), 3101);
-  assertNull(res[1000].firstMatch("MORE THAN MILLION    "), 3102);
-  assertNull(res[1000].firstMatch("more \n than \n million "), 3103);
-  assertNull(res[1000].firstMatch("more than million"), 3104);
-  assertNull(res[1000].firstMatch("more than MILLION"), 3105);
-  assertNull(res[1000].firstMatch("more \n than Million "), 3106);
-  assertNull(res[1000].firstMatch("*** Failers"), 3107);
-  assertNull(res[1000].firstMatch("MORE THAN MILLION    "), 3108);
-  assertNull(res[1000].firstMatch("more \n than \n million "), 3109);
-  assertNull(res[1000].firstMatch(""), 3110);
-  assertToStringEquals("abc,b", res[1000].firstMatch("abc"), 3111);
-  assertToStringEquals("bc,b", res[1000].firstMatch("aBbc"), 3112);
-  assertToStringEquals("c,", res[1000].firstMatch("aBBc "), 3113);
-  assertNull(res[1000].firstMatch("*** Failers"), 3114);
-  assertToStringEquals("bc,b", res[1000].firstMatch("Abc"), 3115);
-  assertNull(res[1000].firstMatch("abAb    "), 3116);
-  assertNull(res[1000].firstMatch("abbC "), 3117);
-  assertNull(res[1000].firstMatch(""), 3118);
-  assertToStringEquals("abc,b", res[1000].firstMatch("abc"), 3119);
-  assertToStringEquals("c,", res[1000].firstMatch("aBc"), 3120);
-  assertNull(res[1000].firstMatch("*** Failers"), 3121);
-  assertNull(res[1000].firstMatch("Ab "), 3122);
-  assertNull(res[1000].firstMatch("abC"), 3123);
-  assertNull(res[1000].firstMatch("aBC     "), 3124);
-  assertNull(res[1000].firstMatch(""), 3125);
-  assertToStringEquals("c,", res[1000].firstMatch("abxxc"), 3126);
-  assertToStringEquals("c,", res[1000].firstMatch("aBxxc"), 3127);
-  assertNull(res[1000].firstMatch("*** Failers"), 3128);
-  assertToStringEquals("c,", res[1000].firstMatch("Abxxc"), 3129);
-  assertToStringEquals("c,", res[1000].firstMatch("ABxxc"), 3130);
-  assertNull(res[1000].firstMatch("abxxC      "), 3131);
-  assertToStringEquals("abc,b", res[1000].firstMatch("abc:"), 3132);
-  assertNull(res[1000].firstMatch("12"), 3133);
-  assertNull(res[1000].firstMatch("*** Failers"), 3134);
-  assertNull(res[1000].firstMatch("123"), 3135);
-  assertNull(res[1000].firstMatch("xyz    "), 3136);
-  assertToStringEquals("abc,b", res[1000].firstMatch("abc:"), 3137);
-  assertNull(res[1000].firstMatch("12"), 3138);
-  assertNull(res[1000].firstMatch("*** Failers"), 3139);
-  assertNull(res[1000].firstMatch("123"), 3140);
-  assertNull(res[1000].firstMatch("xyz    "), 3141);
-  assertNull(res[1000].firstMatch(""), 3142);
-  assertNull(res[1000].firstMatch("foobar"), 3143);
-  assertToStringEquals("c,", res[1000].firstMatch("cat"), 3144);
-  assertToStringEquals("c,", res[1000].firstMatch("fcat"), 3145);
-  assertToStringEquals("c,", res[1000].firstMatch("focat   "), 3146);
-  assertNull(res[1000].firstMatch("*** Failers"), 3147);
-  assertToStringEquals("c,", res[1000].firstMatch("foocat  "), 3148);
-  assertNull(res[1000].firstMatch("foobar"), 3149);
-  assertToStringEquals("c,", res[1000].firstMatch("cat"), 3150);
-  assertToStringEquals("c,", res[1000].firstMatch("fcat"), 3151);
-  assertToStringEquals("c,", res[1000].firstMatch("focat   "), 3152);
-  assertNull(res[1000].firstMatch("*** Failers"), 3153);
-  assertToStringEquals("c,", res[1000].firstMatch("foocat  "), 3154);
-  assertNull(res[1000].firstMatch("a"), 3155);
-  assertNull(res[1000].firstMatch("aa"), 3156);
-  assertNull(res[1000].firstMatch("aaaa"), 3157);
-  assertNull(res[1000].firstMatch(""), 3158);
-  assertToStringEquals("abc,abc", res[1001].firstMatch("abc"), 3159);
-  assertToStringEquals("abcabc,abc", res[1001].firstMatch("abcabc"), 3160);
-  assertToStringEquals(
-      "abcabcabc,abc", res[1001].firstMatch("abcabcabc"), 3161);
-  assertToStringEquals(",", res[1001].firstMatch("xyz      "), 3162);
-  assertToStringEquals("a,a", res[1002].firstMatch("a"), 3163);
-  assertToStringEquals("aaaaa,aaaaa", res[1002].firstMatch("aaaaa "), 3164);
-  assertToStringEquals("a,a", res[1003].firstMatch("a"), 3165);
-  assertToStringEquals("b,b", res[1003].firstMatch("b"), 3166);
-  assertToStringEquals("ababab,ababab", res[1003].firstMatch("ababab"), 3167);
-  assertToStringEquals("aaaab,aaaab", res[1003].firstMatch("aaaabcde"), 3168);
-  assertToStringEquals("bbbb,bbbb", res[1003].firstMatch("bbbb    "), 3169);
-  assertToStringEquals("b,b", res[1004].firstMatch("b"), 3170);
-  assertToStringEquals("bbbb,bbbb", res[1004].firstMatch("bbbb"), 3171);
-  assertToStringEquals(",", res[1004].firstMatch("aaa   "), 3172);
-  assertToStringEquals("cccc,cccc", res[1005].firstMatch("cccc"), 3173);
-  assertToStringEquals(",", res[1005].firstMatch("abab  "), 3174);
-  assertToStringEquals("a,a", res[1006].firstMatch("a"), 3175);
-  assertToStringEquals("aaaa,a", res[1006].firstMatch("aaaa "), 3176);
-  assertToStringEquals("a,a", res[1007].firstMatch("a"), 3177);
-  assertToStringEquals("b,b", res[1007].firstMatch("b"), 3178);
-  assertToStringEquals("abab,b", res[1007].firstMatch("abab"), 3179);
-  assertToStringEquals("baba,a", res[1007].firstMatch("baba   "), 3180);
-  assertToStringEquals("b,b", res[1008].firstMatch("b"), 3181);
-  assertToStringEquals("bbbb,b", res[1008].firstMatch("bbbb"), 3182);
-  assertToStringEquals(",", res[1008].firstMatch("aaa   "), 3183);
-  assertToStringEquals("c,c", res[1009].firstMatch("c"), 3184);
-  assertToStringEquals("cccc,c", res[1009].firstMatch("cccc"), 3185);
-  assertToStringEquals(",", res[1009].firstMatch("baba   "), 3186);
-  assertToStringEquals(",", res[1009].firstMatch("a"), 3187);
-  assertToStringEquals(",", res[1009].firstMatch("aaabcde "), 3188);
-  assertToStringEquals(",", res[1009].firstMatch("aaaaa"), 3189);
-  assertToStringEquals(",", res[1009].firstMatch("aabbaa "), 3190);
-  assertToStringEquals(",", res[1009].firstMatch("aaaaa"), 3191);
-  assertToStringEquals(",", res[1009].firstMatch("aabbaa "), 3192);
-  assertToStringEquals("12-sep-98,8", res[1009].firstMatch("12-sep-98"), 3193);
-  assertToStringEquals("12-09-98,8", res[1009].firstMatch("12-09-98"), 3194);
-  assertToStringEquals("*** F,F", res[1009].firstMatch("*** Failers"), 3195);
-  assertToStringEquals("sep-12-98,8", res[1009].firstMatch("sep-12-98"), 3196);
-  assertToStringEquals("    , ", res[1009].firstMatch("    "), 3197);
-  assertToStringEquals("s,s", res[1009].firstMatch("saturday"), 3198);
-  assertToStringEquals("sund,d", res[1009].firstMatch("sunday"), 3199);
-  assertToStringEquals("S,S", res[1009].firstMatch("Saturday"), 3200);
-  assertToStringEquals("Sund,d", res[1009].firstMatch("Sunday"), 3201);
-  assertToStringEquals("SATURDAY,Y", res[1009].firstMatch("SATURDAY"), 3202);
-  assertToStringEquals("SUNDAY,Y", res[1009].firstMatch("SUNDAY"), 3203);
-  assertToStringEquals("SunD,D", res[1009].firstMatch("SunDay"), 3204);
-  assertToStringEquals(",", res[1009].firstMatch("abcx"), 3205);
-  assertToStringEquals(",", res[1009].firstMatch("aBCx"), 3206);
-  assertToStringEquals(",", res[1009].firstMatch("bbx"), 3207);
-  assertToStringEquals("BBx,x", res[1009].firstMatch("BBx"), 3208);
-  assertToStringEquals("*** F,F", res[1009].firstMatch("*** Failers"), 3209);
-  assertToStringEquals(",", res[1009].firstMatch("abcX"), 3210);
-  assertToStringEquals(",", res[1009].firstMatch("aBCX"), 3211);
-  assertToStringEquals(",", res[1009].firstMatch("bbX"), 3212);
-  assertToStringEquals(
-      "BBX               , ", res[1009].firstMatch("BBX               "), 3213);
-  assertToStringEquals(",", res[1009].firstMatch("ac"), 3214);
-  assertToStringEquals(",", res[1009].firstMatch("aC"), 3215);
-  assertToStringEquals(",", res[1009].firstMatch("bD"), 3216);
-  assertToStringEquals("eleph,h", res[1009].firstMatch("elephant"), 3217);
-  assertToStringEquals("Europe , ", res[1009].firstMatch("Europe "), 3218);
-  assertToStringEquals("frog,g", res[1009].firstMatch("frog"), 3219);
-  assertToStringEquals("Fr,r", res[1009].firstMatch("France"), 3220);
-  assertToStringEquals("*** F,F", res[1009].firstMatch("*** Failers"), 3221);
-  assertToStringEquals("Afric,c", res[1009].firstMatch("Africa     "), 3222);
-  assertToStringEquals(",", res[1009].firstMatch("ab"), 3223);
-  assertToStringEquals(",", res[1009].firstMatch("aBd"), 3224);
-  assertToStringEquals("xy,y", res[1009].firstMatch("xy"), 3225);
-  assertToStringEquals("xY,Y", res[1009].firstMatch("xY"), 3226);
-  assertToStringEquals("ze,e", res[1009].firstMatch("zebra"), 3227);
-  assertToStringEquals("Z,Z", res[1009].firstMatch("Zambesi"), 3228);
-  assertToStringEquals("*** F,F", res[1009].firstMatch("*** Failers"), 3229);
-  assertToStringEquals(",", res[1009].firstMatch("aCD  "), 3230);
-  assertToStringEquals("XY  , ", res[1009].firstMatch("XY  "), 3231);
-  assertToStringEquals("foo\n,\n", res[1009].firstMatch("foo\nbar"), 3232);
-  assertToStringEquals("*** F,F", res[1009].firstMatch("*** Failers"), 3233);
-  assertToStringEquals(",", res[1009].firstMatch("bar"), 3234);
-  assertToStringEquals(",", res[1009].firstMatch("baz\nbar   "), 3235);
-  assertToStringEquals(",", res[1009].firstMatch("barbaz"), 3236);
-  assertToStringEquals(",", res[1009].firstMatch("barbarbaz "), 3237);
-  assertToStringEquals("koo,o", res[1009].firstMatch("koobarbaz "), 3238);
-  assertToStringEquals("*** F,F", res[1009].firstMatch("*** Failers"), 3239);
-  assertToStringEquals(",", res[1009].firstMatch("baz"), 3240);
-  assertToStringEquals("foo,o", res[1009].firstMatch("foobarbaz "), 3241);
-  assertToStringEquals("abc", res[1012].firstMatch("abc"), 3242);
-  assertToStringEquals("abc", res[1012].firstMatch("xabcy"), 3243);
-  assertToStringEquals("abc", res[1012].firstMatch("ababc"), 3244);
-  assertNull(res[1012].firstMatch("*** Failers"), 3245);
-  assertNull(res[1012].firstMatch("xbc"), 3246);
-  assertNull(res[1012].firstMatch("axc"), 3247);
-  assertNull(res[1012].firstMatch("abx"), 3248);
-  assertToStringEquals("abc", res[1013].firstMatch("abc"), 3249);
-  assertToStringEquals("abc", res[1014].firstMatch("abc"), 3250);
-  assertToStringEquals("abbc", res[1014].firstMatch("abbc"), 3251);
-  assertToStringEquals("abbbbc", res[1014].firstMatch("abbbbc"), 3252);
-  assertToStringEquals("a", res[1015].firstMatch("abbbbc"), 3253);
-  assertToStringEquals("abbb", res[1016].firstMatch("abbbbc"), 3254);
-  assertToStringEquals("abbbbc", res[1017].firstMatch("abbbbc"), 3255);
-  assertToStringEquals("abbc", res[1018].firstMatch("abbc"), 3256);
-  assertNull(res[1018].firstMatch("*** Failers"), 3257);
-  assertNull(res[1018].firstMatch("abc"), 3258);
-  assertNull(res[1018].firstMatch("abq"), 3259);
-  assertToStringEquals("abbbbc", res[1020].firstMatch("abbbbc"), 3260);
-  assertToStringEquals("abbbbc", res[1021].firstMatch("abbbbc"), 3261);
-  assertToStringEquals("abbbbc", res[1022].firstMatch("abbbbc"), 3262);
-  assertToStringEquals("abbbbc", res[1023].firstMatch("abbbbc"), 3263);
-  assertNull(res[1024].firstMatch("*** Failers"), 3264);
-  assertNull(res[1024].firstMatch("abq"), 3265);
-  assertNull(res[1024].firstMatch("abbbbc"), 3266);
-  assertToStringEquals("abbc", res[1025].firstMatch("abbc"), 3267);
-  assertToStringEquals("abc", res[1025].firstMatch("abc"), 3268);
-  assertToStringEquals("abc", res[1026].firstMatch("abc"), 3269);
-  assertToStringEquals("abc", res[1028].firstMatch("abc"), 3270);
-  assertToStringEquals("abc", res[1029].firstMatch("abc"), 3271);
-  assertToStringEquals("abc", res[1030].firstMatch("abc"), 3272);
-  assertNull(res[1030].firstMatch("*** Failers"), 3273);
-  assertNull(res[1030].firstMatch("abbbbc"), 3274);
-  assertNull(res[1030].firstMatch("abcc"), 3275);
-  assertToStringEquals("abc", res[1031].firstMatch("abcc"), 3276);
-  assertToStringEquals("abc", res[1033].firstMatch("aabc"), 3277);
-  assertNull(res[1033].firstMatch("*** Failers"), 3278);
-  assertToStringEquals("abc", res[1033].firstMatch("aabc"), 3279);
-  assertNull(res[1033].firstMatch("aabcd"), 3280);
-  assertToStringEquals("", res[1034].firstMatch("abc"), 3281);
-  assertToStringEquals("", res[1035].firstMatch("abc"), 3282);
-  assertToStringEquals("abc", res[1036].firstMatch("abc"), 3283);
-  assertToStringEquals("axc", res[1036].firstMatch("axc"), 3284);
-  assertToStringEquals("axyzc", res[1037].firstMatch("axyzc"), 3285);
-  assertToStringEquals("abd", res[1038].firstMatch("abd"), 3286);
-  assertNull(res[1038].firstMatch("*** Failers"), 3287);
-  assertNull(res[1038].firstMatch("axyzd"), 3288);
-  assertNull(res[1038].firstMatch("abc"), 3289);
-  assertToStringEquals("ace", res[1039].firstMatch("ace"), 3290);
-  assertToStringEquals("ac", res[1040].firstMatch("aac"), 3291);
-  assertToStringEquals("a-", res[1041].firstMatch("a-"), 3292);
-  assertToStringEquals("a-", res[1042].firstMatch("a-"), 3293);
-  assertToStringEquals("a]", res[1043].firstMatch("a]"), 3294);
-  assertNull(res[1044].firstMatch("a]b"), 3295);
-  assertToStringEquals("aed", res[1045].firstMatch("aed"), 3296);
-  assertNull(res[1045].firstMatch("*** Failers"), 3297);
-  assertNull(res[1045].firstMatch("abd"), 3298);
-  assertNull(res[1045].firstMatch("abd"), 3299);
-  assertToStringEquals("adc", res[1046].firstMatch("adc"), 3300);
-  assertNull(res[1047].firstMatch("adc"), 3301);
-  assertNull(res[1047].firstMatch("*** Failers"), 3302);
-  assertNull(res[1047].firstMatch("a-c"), 3303);
-  assertNull(res[1047].firstMatch("a]c"), 3304);
-  assertToStringEquals("a", res[1048].firstMatch("a-"), 3305);
-  assertToStringEquals("a", res[1048].firstMatch("-a"), 3306);
-  assertToStringEquals("a", res[1048].firstMatch("-a-"), 3307);
-  assertNull(res[1049].firstMatch("*** Failers"), 3308);
-  assertNull(res[1049].firstMatch("xy"), 3309);
-  assertNull(res[1049].firstMatch("yz"), 3310);
-  assertNull(res[1049].firstMatch("xyz"), 3311);
-  assertToStringEquals("a", res[1050].firstMatch("*** Failers"), 3312);
-  assertNull(res[1050].firstMatch("a-"), 3313);
-  assertNull(res[1050].firstMatch("-a"), 3314);
-  assertNull(res[1050].firstMatch("-a-"), 3315);
-  assertToStringEquals("y", res[1051].firstMatch("xy"), 3316);
-  assertToStringEquals("y", res[1052].firstMatch("yz"), 3317);
-  assertToStringEquals("y", res[1053].firstMatch("xyz"), 3318);
-  assertToStringEquals("a", res[1054].firstMatch("a"), 3319);
-  assertToStringEquals("-", res[1055].firstMatch("-"), 3320);
-  assertToStringEquals("*", res[1055].firstMatch("*** Failers"), 3321);
-  assertToStringEquals("-", res[1055].firstMatch("-"), 3322);
-  assertNull(res[1055].firstMatch("a"), 3323);
-  assertToStringEquals("a b", res[1056].firstMatch("a b"), 3324);
-  assertToStringEquals("a-b", res[1057].firstMatch("a-b"), 3325);
-  assertNull(res[1057].firstMatch("*** Failers"), 3326);
-  assertToStringEquals("a-b", res[1057].firstMatch("a-b"), 3327);
-  assertNull(res[1057].firstMatch("a b"), 3328);
-  assertToStringEquals("1", res[1058].firstMatch("1"), 3329);
-  assertToStringEquals("-", res[1059].firstMatch("-"), 3330);
-  assertToStringEquals("*", res[1059].firstMatch("*** Failers"), 3331);
-  assertToStringEquals("-", res[1059].firstMatch("-"), 3332);
-  assertNull(res[1059].firstMatch("1"), 3333);
-  assertToStringEquals("a", res[1060].firstMatch("a"), 3334);
-  assertToStringEquals("-", res[1061].firstMatch("-"), 3335);
-  assertToStringEquals("*", res[1061].firstMatch("*** Failers"), 3336);
-  assertToStringEquals("-", res[1061].firstMatch("-"), 3337);
-  assertNull(res[1061].firstMatch("a"), 3338);
-  assertToStringEquals("a b", res[1062].firstMatch("a b"), 3339);
-  assertToStringEquals("a-b", res[1063].firstMatch("a-b"), 3340);
-  assertNull(res[1063].firstMatch("*** Failers"), 3341);
-  assertToStringEquals("a-b", res[1063].firstMatch("a-b"), 3342);
-  assertNull(res[1063].firstMatch("a b"), 3343);
-  assertToStringEquals("1", res[1064].firstMatch("1"), 3344);
-  assertToStringEquals("-", res[1065].firstMatch("-"), 3345);
-  assertToStringEquals("*", res[1065].firstMatch("*** Failers"), 3346);
-  assertToStringEquals("-", res[1065].firstMatch("-"), 3347);
-  assertNull(res[1065].firstMatch("1"), 3348);
-  assertToStringEquals("ab", res[1066].firstMatch("abc"), 3349);
-  assertToStringEquals("ab", res[1066].firstMatch("abcd"), 3350);
-  assertToStringEquals("ef,", res[1067].firstMatch("def"), 3351);
-  assertToStringEquals("a(b", res[1069].firstMatch("a(b"), 3352);
-  assertNull(res[1069].firstMatch("ab"), 3353);
-  assertNull(res[1069].firstMatch("a((b"), 3354);
-  assertNull(res[1070].firstMatch("a\x08"), 3355);
-  assertToStringEquals("a,a,a", res[1071].firstMatch("abc"), 3356);
-  assertToStringEquals("abc,a,c", res[1072].firstMatch("abc"), 3357);
-  assertToStringEquals("abc", res[1073].firstMatch("aabbabc"), 3358);
-  assertToStringEquals("abc", res[1074].firstMatch("aabbabc"), 3359);
-  assertToStringEquals("abc", res[1075].firstMatch("abcabc"), 3360);
-  assertToStringEquals("ab,b", res[1076].firstMatch("ab"), 3361);
-  assertToStringEquals("ab,b", res[1077].firstMatch("ab"), 3362);
-  assertToStringEquals("ab,b", res[1078].firstMatch("ab"), 3363);
-  assertToStringEquals("ab,b", res[1079].firstMatch("ab"), 3364);
-  assertToStringEquals("a,a", res[1080].firstMatch("ab"), 3365);
-  assertToStringEquals("a,a", res[1081].firstMatch("ab"), 3366);
-  assertToStringEquals("cde", res[1082].firstMatch("cde"), 3367);
-  assertNull(res[1083].firstMatch("*** Failers"), 3368);
-  assertNull(res[1083].firstMatch("b"), 3369);
-  assertToStringEquals("abbbcd,c", res[1085].firstMatch("abbbcd"), 3370);
-  assertToStringEquals("abcd,a", res[1086].firstMatch("abcd"), 3371);
-  assertToStringEquals("e", res[1087].firstMatch("e"), 3372);
-  assertToStringEquals("ef,e", res[1088].firstMatch("ef"), 3373);
-  assertToStringEquals("abcdefg", res[1089].firstMatch("abcdefg"), 3374);
-  assertToStringEquals("ab", res[1090].firstMatch("xabyabbbz"), 3375);
-  assertToStringEquals("a", res[1090].firstMatch("xayabbbz"), 3376);
-  assertToStringEquals("cde,cd", res[1091].firstMatch("abcde"), 3377);
-  assertToStringEquals("hij", res[1092].firstMatch("hij"), 3378);
-  assertToStringEquals("ef,", res[1094].firstMatch("abcdef"), 3379);
-  assertToStringEquals("bcd,b", res[1095].firstMatch("abcd"), 3380);
-  assertToStringEquals("abc,a", res[1096].firstMatch("abc"), 3381);
-  assertToStringEquals("abc,bc", res[1097].firstMatch("abc"), 3382);
-  assertToStringEquals("abcd,bc,d", res[1098].firstMatch("abcd"), 3383);
-  assertToStringEquals("abcd,bc,d", res[1099].firstMatch("abcd"), 3384);
-  assertToStringEquals("abcd,b,cd", res[1100].firstMatch("abcd"), 3385);
-  assertToStringEquals("adcdcde", res[1101].firstMatch("adcdcde"), 3386);
-  assertNull(res[1102].firstMatch("*** Failers"), 3387);
-  assertNull(res[1102].firstMatch("abcde"), 3388);
-  assertNull(res[1102].firstMatch("adcdcde"), 3389);
-  assertToStringEquals("abc,ab", res[1103].firstMatch("abc"), 3390);
-  assertToStringEquals("abcd,abc,a,b,d", res[1104].firstMatch("abcd"), 3391);
-  assertToStringEquals("alpha", res[1105].firstMatch("alpha"), 3392);
-  assertToStringEquals("bh,", res[1106].firstMatch("abh"), 3393);
-  assertToStringEquals("effgz,effgz,", res[1107].firstMatch("effgz"), 3394);
-  assertToStringEquals("ij,ij,j", res[1107].firstMatch("ij"), 3395);
-  assertToStringEquals("effgz,effgz,", res[1107].firstMatch("reffgz"), 3396);
-  assertNull(res[1107].firstMatch("*** Failers"), 3397);
-  assertNull(res[1107].firstMatch("effg"), 3398);
-  assertNull(res[1107].firstMatch("bcdd"), 3399);
-  assertToStringEquals(
-      "a,a,a,a,a,a,a,a,a,a,a", res[1108].firstMatch("a"), 3400);
-  assertToStringEquals("a,a,a,a,a,a,a,a,a,a", res[1109].firstMatch("a"), 3401);
-  assertNull(res[1110].firstMatch("*** Failers"), 3402);
-  assertNull(res[1110].firstMatch("aa"), 3403);
-  assertNull(res[1110].firstMatch("uh-uh"), 3404);
-  assertToStringEquals(
-      "multiple words", res[1111].firstMatch("multiple words, yeah"), 3405);
-  assertToStringEquals("abcde,ab,de", res[1112].firstMatch("abcde"), 3406);
-  assertToStringEquals("(a, b),a,b", res[1113].firstMatch("(a, b)"), 3407);
-  assertToStringEquals("abcd", res[1115].firstMatch("abcd"), 3408);
-  assertToStringEquals("abcd,bc", res[1116].firstMatch("abcd"), 3409);
-  assertToStringEquals("ac", res[1117].firstMatch("ac"), 3410);
-  assertToStringEquals("ABC", res[1118].firstMatch("ABC"), 3411);
-  assertToStringEquals("ABC", res[1118].firstMatch("XABCY"), 3412);
-  assertToStringEquals("ABC", res[1118].firstMatch("ABABC"), 3413);
-  assertNull(res[1118].firstMatch("*** Failers"), 3414);
-  assertNull(res[1118].firstMatch("aaxabxbaxbbx"), 3415);
-  assertNull(res[1118].firstMatch("XBC"), 3416);
-  assertNull(res[1118].firstMatch("AXC"), 3417);
-  assertNull(res[1118].firstMatch("ABX"), 3418);
-  assertToStringEquals("ABC", res[1119].firstMatch("ABC"), 3419);
-  assertToStringEquals("ABC", res[1120].firstMatch("ABC"), 3420);
-  assertToStringEquals("ABBC", res[1120].firstMatch("ABBC"), 3421);
-  assertToStringEquals("ABBBBC", res[1121].firstMatch("ABBBBC"), 3422);
-  assertToStringEquals("ABBBBC", res[1122].firstMatch("ABBBBC"), 3423);
-  assertToStringEquals("ABBC", res[1123].firstMatch("ABBC"), 3424);
-  assertNull(res[1124].firstMatch("*** Failers"), 3425);
-  assertNull(res[1124].firstMatch("ABC"), 3426);
-  assertNull(res[1124].firstMatch("ABQ"), 3427);
-  assertToStringEquals("ABBBBC", res[1126].firstMatch("ABBBBC"), 3428);
-  assertToStringEquals("ABBBBC", res[1127].firstMatch("ABBBBC"), 3429);
-  assertToStringEquals("ABBBBC", res[1128].firstMatch("ABBBBC"), 3430);
-  assertToStringEquals("ABBBBC", res[1129].firstMatch("ABBBBC"), 3431);
-  assertNull(res[1130].firstMatch("*** Failers"), 3432);
-  assertNull(res[1130].firstMatch("ABQ"), 3433);
-  assertNull(res[1130].firstMatch("ABBBBC"), 3434);
-  assertToStringEquals("ABBC", res[1131].firstMatch("ABBC"), 3435);
-  assertToStringEquals("ABC", res[1131].firstMatch("ABC"), 3436);
-  assertToStringEquals("ABC", res[1132].firstMatch("ABC"), 3437);
-  assertToStringEquals("ABC", res[1134].firstMatch("ABC"), 3438);
-  assertToStringEquals("ABC", res[1135].firstMatch("ABC"), 3439);
-  assertToStringEquals("ABC", res[1136].firstMatch("ABC"), 3440);
-  assertNull(res[1136].firstMatch("*** Failers"), 3441);
-  assertNull(res[1136].firstMatch("ABBBBC"), 3442);
-  assertNull(res[1136].firstMatch("ABCC"), 3443);
-  assertToStringEquals("ABC", res[1137].firstMatch("ABCC"), 3444);
-  assertToStringEquals("ABC", res[1139].firstMatch("AABC"), 3445);
-  assertToStringEquals("", res[1140].firstMatch("ABC"), 3446);
-  assertToStringEquals("", res[1141].firstMatch("ABC"), 3447);
-  assertToStringEquals("ABC", res[1142].firstMatch("ABC"), 3448);
-  assertToStringEquals("AXC", res[1142].firstMatch("AXC"), 3449);
-  assertToStringEquals("AXYZC", res[1143].firstMatch("AXYZC"), 3450);
-  assertNull(res[1144].firstMatch("*** Failers"), 3451);
-  assertToStringEquals("AABC", res[1144].firstMatch("AABC"), 3452);
-  assertNull(res[1144].firstMatch("AXYZD"), 3453);
-  assertToStringEquals("ABD", res[1145].firstMatch("ABD"), 3454);
-  assertToStringEquals("ACE", res[1146].firstMatch("ACE"), 3455);
-  assertNull(res[1146].firstMatch("*** Failers"), 3456);
-  assertNull(res[1146].firstMatch("ABC"), 3457);
-  assertNull(res[1146].firstMatch("ABD"), 3458);
-  assertToStringEquals("AC", res[1147].firstMatch("AAC"), 3459);
-  assertToStringEquals("A-", res[1148].firstMatch("A-"), 3460);
-  assertToStringEquals("A-", res[1149].firstMatch("A-"), 3461);
-  assertToStringEquals("A]", res[1150].firstMatch("A]"), 3462);
-  assertNull(res[1151].firstMatch("A]B"), 3463);
-  assertToStringEquals("AED", res[1152].firstMatch("AED"), 3464);
-  assertToStringEquals("ADC", res[1153].firstMatch("ADC"), 3465);
-  assertNull(res[1153].firstMatch("*** Failers"), 3466);
-  assertNull(res[1153].firstMatch("ABD"), 3467);
-  assertNull(res[1153].firstMatch("A-C"), 3468);
-  assertNull(res[1154].firstMatch("ADC"), 3469);
-  assertToStringEquals("AB", res[1155].firstMatch("ABC"), 3470);
-  assertToStringEquals("AB", res[1155].firstMatch("ABCD"), 3471);
-  assertToStringEquals("EF,", res[1156].firstMatch("DEF"), 3472);
-  assertNull(res[1157].firstMatch("*** Failers"), 3473);
-  assertNull(res[1157].firstMatch("A]C"), 3474);
-  assertNull(res[1157].firstMatch("B"), 3475);
-  assertToStringEquals("A(B", res[1158].firstMatch("A(B"), 3476);
-  assertNull(res[1158].firstMatch("AB"), 3477);
-  assertNull(res[1158].firstMatch("A((B"), 3478);
-  assertNull(res[1159].firstMatch("AB"), 3479);
-  assertToStringEquals("A,A,A", res[1160].firstMatch("ABC"), 3480);
-  assertToStringEquals("ABC,A,C", res[1161].firstMatch("ABC"), 3481);
-  assertToStringEquals("ABC", res[1162].firstMatch("AABBABC"), 3482);
-  assertToStringEquals("ABC", res[1163].firstMatch("AABBABC"), 3483);
-  assertToStringEquals("ABC", res[1164].firstMatch("ABCABC"), 3484);
-  assertToStringEquals("ABC", res[1165].firstMatch("ABCABC"), 3485);
-  assertToStringEquals("ABC", res[1166].firstMatch("ABCABC"), 3486);
-  assertToStringEquals("AB,B", res[1167].firstMatch("AB"), 3487);
-  assertToStringEquals("AB,B", res[1168].firstMatch("AB"), 3488);
-  assertToStringEquals("AB,B", res[1169].firstMatch("AB"), 3489);
-  assertToStringEquals("AB,B", res[1170].firstMatch("AB"), 3490);
-  assertToStringEquals("A,A", res[1171].firstMatch("AB"), 3491);
-  assertToStringEquals("A,A", res[1172].firstMatch("AB"), 3492);
-  assertToStringEquals(",", res[1173].firstMatch("AB"), 3493);
-  assertToStringEquals("CDE", res[1174].firstMatch("CDE"), 3494);
-  assertToStringEquals("ABBBCD,C", res[1177].firstMatch("ABBBCD"), 3495);
-  assertToStringEquals("ABCD,A", res[1178].firstMatch("ABCD"), 3496);
-  assertToStringEquals("E", res[1179].firstMatch("E"), 3497);
-  assertToStringEquals("EF,E", res[1180].firstMatch("EF"), 3498);
-  assertToStringEquals("ABCDEFG", res[1181].firstMatch("ABCDEFG"), 3499);
-  assertToStringEquals("AB", res[1182].firstMatch("XABYABBBZ"), 3500);
-  assertToStringEquals("A", res[1182].firstMatch("XAYABBBZ"), 3501);
-  assertToStringEquals("CDE,CD", res[1183].firstMatch("ABCDE"), 3502);
-  assertToStringEquals("HIJ", res[1184].firstMatch("HIJ"), 3503);
-  assertNull(res[1185].firstMatch("ABCDE"), 3504);
-  assertToStringEquals("EF,", res[1186].firstMatch("ABCDEF"), 3505);
-  assertToStringEquals("BCD,B", res[1187].firstMatch("ABCD"), 3506);
-  assertToStringEquals("ABC,A", res[1188].firstMatch("ABC"), 3507);
-  assertToStringEquals("ABC,BC", res[1189].firstMatch("ABC"), 3508);
-  assertToStringEquals("ABCD,BC,D", res[1190].firstMatch("ABCD"), 3509);
-  assertToStringEquals("ABCD,BC,D", res[1191].firstMatch("ABCD"), 3510);
-  assertToStringEquals("ABCD,B,CD", res[1192].firstMatch("ABCD"), 3511);
-  assertToStringEquals("ADCDCDE", res[1193].firstMatch("ADCDCDE"), 3512);
-  assertToStringEquals("ABC,AB", res[1195].firstMatch("ABC"), 3513);
-  assertToStringEquals("ABCD,ABC,A,B,D", res[1196].firstMatch("ABCD"), 3514);
-  assertToStringEquals("ALPHA", res[1197].firstMatch("ALPHA"), 3515);
-  assertToStringEquals("BH,", res[1198].firstMatch("ABH"), 3516);
-  assertToStringEquals("EFFGZ,EFFGZ,", res[1199].firstMatch("EFFGZ"), 3517);
-  assertToStringEquals("IJ,IJ,J", res[1199].firstMatch("IJ"), 3518);
-  assertToStringEquals("EFFGZ,EFFGZ,", res[1199].firstMatch("REFFGZ"), 3519);
-  assertNull(res[1199].firstMatch("*** Failers"), 3520);
-  assertNull(res[1199].firstMatch("ADCDCDE"), 3521);
-  assertNull(res[1199].firstMatch("EFFG"), 3522);
-  assertNull(res[1199].firstMatch("BCDD"), 3523);
-  assertToStringEquals(
-      "A,A,A,A,A,A,A,A,A,A,A", res[1200].firstMatch("A"), 3524);
-  assertToStringEquals("A,A,A,A,A,A,A,A,A,A", res[1201].firstMatch("A"), 3525);
-  assertToStringEquals("A,A", res[1202].firstMatch("A"), 3526);
-  assertToStringEquals("C,C", res[1203].firstMatch("C"), 3527);
-  assertNull(res[1204].firstMatch("*** Failers"), 3528);
-  assertNull(res[1204].firstMatch("AA"), 3529);
-  assertNull(res[1204].firstMatch("UH-UH"), 3530);
-  assertToStringEquals(
-      "MULTIPLE WORDS", res[1205].firstMatch("MULTIPLE WORDS, YEAH"), 3531);
-  assertToStringEquals("ABCDE,AB,DE", res[1206].firstMatch("ABCDE"), 3532);
-  assertToStringEquals("(A, B),A,B", res[1207].firstMatch("(A, B)"), 3533);
-  assertToStringEquals("ABCD", res[1209].firstMatch("ABCD"), 3534);
-  assertToStringEquals("ABCD,BC", res[1210].firstMatch("ABCD"), 3535);
-  assertToStringEquals("AC", res[1211].firstMatch("AC"), 3536);
-  assertToStringEquals("ad", res[1212].firstMatch("abad"), 3537);
-  assertToStringEquals("ad", res[1213].firstMatch("abad"), 3538);
-  assertToStringEquals("ad", res[1214].firstMatch("abad"), 3539);
-  assertToStringEquals("ace,e", res[1215].firstMatch("ace"), 3540);
-  assertToStringEquals("ace,e", res[1216].firstMatch("ace"), 3541);
-  assertToStringEquals("ace,e", res[1217].firstMatch("ace"), 3542);
-  assertToStringEquals("acd,d", res[1217].firstMatch("acdbcdbe"), 3543);
-  assertToStringEquals("acdbcdbe,e", res[1218].firstMatch("acdbcdbe"), 3544);
-  assertToStringEquals("acdb,b", res[1219].firstMatch("acdbcdbe"), 3545);
-  assertToStringEquals("acdbcdb,b", res[1220].firstMatch("acdbcdbe"), 3546);
-  assertToStringEquals("acdbcd,d", res[1221].firstMatch("acdbcdbe"), 3547);
-  assertToStringEquals("foobar,bar,,bar", res[1222].firstMatch("foobar"), 3548);
-  assertToStringEquals("acdbcdbe,e", res[1223].firstMatch("acdbcdbe"), 3549);
-  assertToStringEquals("acdbcdbe,e", res[1224].firstMatch("acdbcdbe"), 3550);
-  assertToStringEquals("acdbcdbe,e", res[1225].firstMatch("acdbcdbe"), 3551);
-  assertToStringEquals("acdbcdb,b", res[1226].firstMatch("acdbcdbe"), 3552);
-  assertToStringEquals("acdbcdbe,e", res[1227].firstMatch("acdbcdbe"), 3553);
-  assertToStringEquals("acdbcdb,b", res[1228].firstMatch("acdbcdbe"), 3554);
-  assertToStringEquals("ace,c,e", res[1229].firstMatch("ace"), 3555);
-  assertToStringEquals("AB,A", res[1230].firstMatch("AB"), 3556);
-  assertToStringEquals(".,.,", res[1231].firstMatch("."), 3557);
-  assertToStringEquals("<&", res[1232].firstMatch("<&OUT"), 3558);
-  assertToStringEquals("foobar,,,,b,a,r", res[1233].firstMatch("foobar"), 3559);
-  assertToStringEquals(",,,,,,", res[1233].firstMatch("ab"), 3560);
-  assertToStringEquals(",,,,,,", res[1233].firstMatch("*** Failers"), 3561);
-  assertToStringEquals(",,,,,,", res[1233].firstMatch("cb"), 3562);
-  assertToStringEquals(",,,,,,", res[1233].firstMatch("b"), 3563);
-  assertToStringEquals(",,,,,,", res[1233].firstMatch("ab"), 3564);
-  assertToStringEquals(",,,,,,", res[1233].firstMatch("b"), 3565);
-  assertToStringEquals(",,,,,,", res[1233].firstMatch("b"), 3566);
-  assertToStringEquals("aba", res[1234].firstMatch("aba"), 3567);
-  assertToStringEquals("a", res[1235].firstMatch("aba"), 3568);
-  assertToStringEquals(",", res[1236].firstMatch("abc"), 3569);
-  assertToStringEquals("aax,a", res[1237].firstMatch("aax"), 3570);
-  assertToStringEquals("aax,a,a", res[1238].firstMatch("aax"), 3571);
-  assertToStringEquals("aax,a,a", res[1239].firstMatch("aax"), 3572);
-  assertToStringEquals("ab,", res[1240].firstMatch("cab"), 3573);
-  assertToStringEquals("ab,", res[1241].firstMatch("cab"), 3574);
-  assertToStringEquals("ab,", res[1241].firstMatch("ab"), 3575);
-  assertToStringEquals("ab,", res[1241].firstMatch("ab"), 3576);
-  assertNull(res[1241].firstMatch("Ab"), 3577);
-  assertNull(res[1241].firstMatch("Ab"), 3578);
-  assertNull(res[1241].firstMatch("*** Failers"), 3579);
-  assertNull(res[1241].firstMatch("cb"), 3580);
-  assertNull(res[1241].firstMatch("aB"), 3581);
-  assertToStringEquals("ab,", res[1241].firstMatch("ab"), 3582);
-  assertToStringEquals("ab,", res[1241].firstMatch("ab"), 3583);
-  assertNull(res[1241].firstMatch("Ab"), 3584);
-  assertNull(res[1241].firstMatch("Ab"), 3585);
-  assertNull(res[1241].firstMatch("*** Failers"), 3586);
-  assertNull(res[1241].firstMatch("aB"), 3587);
-  assertNull(res[1241].firstMatch("aB"), 3588);
-  assertToStringEquals("ab,", res[1241].firstMatch("ab"), 3589);
-  assertToStringEquals("ab,", res[1241].firstMatch("ab"), 3590);
-  assertNull(res[1241].firstMatch("aB"), 3591);
-  assertNull(res[1241].firstMatch("aB"), 3592);
-  assertNull(res[1241].firstMatch("*** Failers"), 3593);
-  assertNull(res[1241].firstMatch("aB"), 3594);
-  assertNull(res[1241].firstMatch("Ab"), 3595);
-  assertNull(res[1241].firstMatch("aB"), 3596);
-  assertNull(res[1241].firstMatch("aB"), 3597);
-  assertNull(res[1241].firstMatch("*** Failers"), 3598);
-  assertNull(res[1241].firstMatch("Ab"), 3599);
-  assertNull(res[1241].firstMatch("AB"), 3600);
-  assertToStringEquals("ab,", res[1241].firstMatch("ab"), 3601);
-  assertToStringEquals("ab,", res[1241].firstMatch("ab"), 3602);
-  assertNull(res[1241].firstMatch("aB"), 3603);
-  assertNull(res[1241].firstMatch("aB"), 3604);
-  assertNull(res[1241].firstMatch("*** Failers"), 3605);
-  assertNull(res[1241].firstMatch("AB"), 3606);
-  assertNull(res[1241].firstMatch("Ab"), 3607);
-  assertNull(res[1241].firstMatch("aB"), 3608);
-  assertNull(res[1241].firstMatch("aB"), 3609);
-  assertNull(res[1241].firstMatch("*** Failers"), 3610);
-  assertNull(res[1241].firstMatch("Ab"), 3611);
-  assertNull(res[1241].firstMatch("AB"), 3612);
-  assertNull(res[1241].firstMatch("*** Failers"), 3613);
-  assertNull(res[1241].firstMatch("AB"), 3614);
-  assertNull(res[1241].firstMatch("a\nB"), 3615);
-  assertNull(res[1241].firstMatch("a\nB"), 3616);
-  assertToStringEquals("cabbbb", res[1242].firstMatch("cabbbb"), 3617);
-  assertToStringEquals("caaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb",
-      res[1243].firstMatch("caaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"), 3618);
-  assertToStringEquals(
-      "foobar1234baz", res[1244].firstMatch("foobar1234baz"), 3619);
-  assertToStringEquals("x~~,~~", res[1245].firstMatch("x~~"), 3620);
-  assertToStringEquals("aaac", res[1246].firstMatch("aaac"), 3621);
-  assertToStringEquals("aaac", res[1247].firstMatch("aaac"), 3622);
-  assertNull(res[1247].firstMatch("*** Failers"), 3623);
-  assertNull(res[1247].firstMatch("B\nB"), 3624);
-  assertNull(res[1247].firstMatch("dbcb"), 3625);
-  assertNull(res[1247].firstMatch("dbaacb"), 3626);
-  assertNull(res[1247].firstMatch("dbaacb"), 3627);
-  assertNull(res[1247].firstMatch("cdaccb"), 3628);
-  assertNull(res[1248].firstMatch("*** Failers"), 3629);
-  assertNull(res[1248].firstMatch("dbcb"), 3630);
-  assertNull(res[1248].firstMatch("a--"), 3631);
-  assertNull(res[1248].firstMatch("a\nb\nc\n"), 3632);
-  assertNull(res[1248].firstMatch("a\nb\nc\n"), 3633);
-  assertNull(res[1248].firstMatch("a\nb\n"), 3634);
-  assertNull(res[1248].firstMatch("a\nb\n"), 3635);
-  assertNull(res[1248].firstMatch("a\nb\n"), 3636);
-  assertNull(res[1248].firstMatch("a\nb\n"), 3637);
-  assertNull(res[1248].firstMatch("a\nb\nc\n"), 3638);
-  assertNull(res[1248].firstMatch("a\nb\nc\n"), 3639);
-  assertNull(res[1248].firstMatch("a\nb\nc\n"), 3640);
-  assertNull(res[1248].firstMatch("a\nb\nc\n"), 3641);
-  assertNull(res[1250].firstMatch("*** Failers"), 3642);
-  assertNull(res[1250].firstMatch("a\nb\nc\n"), 3643);
-  assertNull(res[1250].firstMatch("a\nb\nc\n"), 3644);
-  assertNull(res[1250].firstMatch("a\nb\nc\n"), 3645);
-  assertNull(res[1250].firstMatch("a"), 3646);
-  assertNull(res[1250].firstMatch("*** Failers"), 3647);
-  assertNull(res[1250].firstMatch("a"), 3648);
-  assertNull(res[1250].firstMatch("a"), 3649);
-  assertNull(res[1250].firstMatch("a"), 3650);
-  assertToStringEquals("one:,one:", res[1251].firstMatch("one:"), 3651);
-  assertNull(res[1251].firstMatch("a"), 3652);
-  assertToStringEquals("abcd,,abcd", res[1252].firstMatch("abcd"), 3653);
-  assertToStringEquals(
-      "xy:z:::abcd,xy:z:::,abcd", res[1252].firstMatch("xy:z:::abcd"), 3654);
-  assertToStringEquals("aexyc,c", res[1253].firstMatch("aexycd"), 3655);
-  assertToStringEquals("aab,aa", res[1254].firstMatch("caab"), 3656);
-  assertToStringEquals("abcd,,abcd", res[1255].firstMatch("abcd"), 3657);
-  assertToStringEquals(
-      "xy:z:::abcd,xy:z:::,abcd", res[1255].firstMatch("xy:z:::abcd"), 3658);
-  assertToStringEquals(
-      "Failers,,Failers", res[1255].firstMatch("*** Failers"), 3659);
-  assertNull(res[1255].firstMatch("abcd:"), 3660);
-  assertNull(res[1255].firstMatch("abcd:"), 3661);
-  assertToStringEquals("aexyc,c", res[1256].firstMatch("aexycd"), 3662);
-  assertNull(res[1257].firstMatch("aaab"), 3663);
-  assertToStringEquals(":[,:[", res[1258].firstMatch("a:[b]:"), 3664);
-  assertToStringEquals("=[,=[", res[1259].firstMatch("a=[b]="), 3665);
-  assertToStringEquals(".[,.[", res[1260].firstMatch("a.[b]."), 3666);
-  assertNull(res[1260].firstMatch("aaab"), 3667);
-  assertNull(res[1260].firstMatch("aaab"), 3668);
-  assertNull(res[1260].firstMatch("((abc(ade)ufh()()x"), 3669);
-  assertNull(res[1261].firstMatch("*** Failers"), 3670);
-  assertNull(res[1261].firstMatch("aaab"), 3671);
-  assertNull(res[1261].firstMatch("a\nb\n"), 3672);
-  assertNull(res[1262].firstMatch("a\nb\n"), 3673);
-  assertNull(res[1264].firstMatch("a\nb"), 3674);
-  assertNull(res[1265].firstMatch("a\nb"), 3675);
-  assertNull(res[1265].firstMatch("*** Failers"), 3676);
-  assertNull(res[1265].firstMatch("alphabetabcd"), 3677);
-  assertNull(res[1265].firstMatch("endingwxyz"), 3678);
-  assertNull(res[1265].firstMatch("*** Failers"), 3679);
-  assertNull(
-      res[1265]
-          .firstMatch("a rather long string that doesn't end with one of them"),
-      3680);
-  assertNull(
-      res[1265].firstMatch(
-          "word cat dog elephant mussel cow horse canary baboon snake shark otherword"),
-      3681);
-  assertNull(
-      res[1265].firstMatch(
-          "word cat dog elephant mussel cow horse canary baboon snake shark"),
-      3682);
-  assertNull(
-      res[1265].firstMatch(
-          "word cat dog elephant mussel cow horse canary baboon snake shark the quick brown fox and the lazy dog and several other words getting close to thirty by now I hope"),
-      3683);
-  assertNull(res[1265].firstMatch("999foo"), 3684);
-  assertNull(res[1265].firstMatch("123999foo "), 3685);
-  assertNull(res[1265].firstMatch("*** Failers"), 3686);
-  assertNull(res[1265].firstMatch("123abcfoo"), 3687);
-  assertNull(res[1265].firstMatch("999foo"), 3688);
-  assertNull(res[1265].firstMatch("123999foo "), 3689);
-  assertNull(res[1265].firstMatch("*** Failers"), 3690);
-  assertNull(res[1265].firstMatch("123abcfoo"), 3691);
-  assertNull(res[1265].firstMatch("123abcfoo"), 3692);
-  assertNull(res[1265].firstMatch("123456foo "), 3693);
-  assertNull(res[1265].firstMatch("*** Failers"), 3694);
-  assertNull(res[1265].firstMatch("123999foo  "), 3695);
-  assertNull(res[1265].firstMatch("123abcfoo   "), 3696);
-  assertNull(res[1265].firstMatch("123456foo "), 3697);
-  assertNull(res[1265].firstMatch("*** Failers"), 3698);
-  assertNull(res[1265].firstMatch("123999foo  "), 3699);
-  assertToStringEquals("ZA,A,", res[1266].firstMatch("ZABCDEFG"), 3700);
-  assertToStringEquals("ZA,A,", res[1267].firstMatch("ZABCDEFG"), 3701);
-  assertToStringEquals("ZA,A,,", res[1268].firstMatch("ZABCDEFG"), 3702);
-  assertToStringEquals("ZA,A,,", res[1268].firstMatch("ZABCDEFG"), 3703);
-  assertToStringEquals("ZA,A,,", res[1268].firstMatch("ZABCDEFG"), 3704);
-  assertToStringEquals("a", res[1269].firstMatch("abbab"), 3705);
-  assertToStringEquals("a", res[1270].firstMatch("abcde"), 3711);
-  assertToStringEquals("-", res[1270].firstMatch("-things"), 3712);
-  assertToStringEquals("0", res[1270].firstMatch("0digit"), 3713);
-  assertNull(res[1270].firstMatch("*** Failers"), 3714);
-  assertNull(res[1270].firstMatch("bcdef    "), 3715);
-  assertNull(res[1271].firstMatch("> \x09\n\x0c\x0d\x0b<"), 3716);
-  assertNull(res[1271].firstMatch(" "), 3717);
-  assertNull(res[1272].firstMatch("> \x09\n\x0c\x0d\x0b<"), 3718);
-  assertNull(res[1272].firstMatch(" "), 3719);
-  assertToStringEquals(" \x09\n\x0c\x0d\x0b",
-      res[1273].firstMatch("> \x09\n\x0c\x0d\x0b<"), 3720);
-  assertToStringEquals(" ", res[1273].firstMatch(" "), 3721);
-  assertToStringEquals(" \x09\n\x0c\x0d\x0b",
-      res[1274].firstMatch("> \x09\n\x0c\x0d\x0b<"), 3722);
-  assertToStringEquals(" ", res[1274].firstMatch(" "), 3723);
-  assertNull(res[1275].firstMatch("ab"), 3724);
-  assertNull(res[1278].firstMatch("abcabcabc"), 3725);
-  assertNull(res[1278].firstMatch("abc(*+|abc "), 3726);
-  assertNull(res[1279].firstMatch("abc abcabc"), 3727);
-  assertNull(res[1279].firstMatch("*** Failers"), 3728);
-  assertNull(res[1279].firstMatch("abcabcabc  "), 3729);
-  assertNull(res[1280].firstMatch("abc#not comment\n    literal     "), 3730);
-  assertNull(res[1281].firstMatch("abc#not comment\n    literal     "), 3731);
-  assertNull(res[1282].firstMatch("abc#not comment\n    literal     "), 3732);
-  assertNull(res[1283].firstMatch("abc#not comment\n    literal     "), 3733);
-  assertNull(res[1284].firstMatch("abc\\\$xyz"), 3734);
-  assertNull(res[1285].firstMatch("abc\\\$xyz"), 3735);
-  assertNull(res[1286].firstMatch("abc"), 3736);
-  assertNull(res[1286].firstMatch("*** Failers"), 3737);
-  assertNull(res[1286].firstMatch("xyzabc  "), 3738);
-  assertNull(res[1287].firstMatch("abc1abc2xyzabc3"), 3739);
-  assertToStringEquals("abc1", res[1288].firstMatch("abc1abc2xyzabc3 "), 3740);
-  assertNull(res[1288].firstMatch("*** Failers "), 3742);
-  assertNull(res[1288].firstMatch("Xa b c d Y "), 3743);
-  assertToStringEquals("abcY", res[1288].firstMatch("XabcY"), 3744);
-  assertNull(res[1288].firstMatch("AxyzB "), 3745);
-  assertNull(res[1288].firstMatch("XabCY"), 3746);
-  assertNull(res[1288].firstMatch("*** Failers"), 3747);
-  assertToStringEquals("abcY", res[1288].firstMatch("XabcY  "), 3748);
-  assertNull(res[1288].firstMatch("abCE"), 3749);
-  assertNull(res[1288].firstMatch("DE"), 3750);
-  assertNull(res[1288].firstMatch("*** Failers"), 3751);
-  assertToStringEquals("abcE", res[1288].firstMatch("abcE"), 3752);
-  assertNull(res[1288].firstMatch("abCe  "), 3753);
-  assertNull(res[1288].firstMatch("dE"), 3754);
-  assertNull(res[1288].firstMatch("De    "), 3755);
-  assertNull(res[1289].firstMatch("z"), 3756);
-  assertNull(res[1289].firstMatch("a"), 3757);
-  assertNull(res[1289].firstMatch("-"), 3758);
-  assertNull(res[1289].firstMatch("d"), 3759);
-  assertNull(res[1289].firstMatch("] "), 3760);
-  assertNull(res[1289].firstMatch("*** Failers"), 3761);
-  assertNull(res[1289].firstMatch("b     "), 3762);
-  assertToStringEquals("z", res[1290].firstMatch("z"), 3763);
-  assertToStringEquals("C", res[1290].firstMatch("C "), 3764);
-  assertToStringEquals("M", res[1291].firstMatch("M "), 3765);
-  assertNull(res[1292].firstMatch(""), 3766);
-  assertNull(res[1292].firstMatch("REGular"), 3767);
-  assertNull(res[1292].firstMatch("regulaer"), 3768);
-  assertNull(res[1292].firstMatch("Regex  "), 3769);
-  assertNull(res[1292].firstMatch("regul\ufffdr "), 3770);
-  assertNull(res[1292].firstMatch("\ufffd\ufffd\ufffd\ufffd\ufffd"), 3771);
-  assertNull(res[1292].firstMatch("\ufffd\ufffd\ufffd\ufffd\ufffd"), 3772);
-  assertNull(res[1292].firstMatch("\ufffd\ufffd\ufffd\ufffd\ufffd"), 3773);
-  assertNull(res[1292].firstMatch("\ufffd\ufffd\ufffd\ufffd\ufffd"), 3774);
-  assertNull(res[1292].firstMatch("\x84XAZXB"), 3775);
-  assertNull(res[1292].firstMatch("123a"), 3776);
-  assertNull(res[1292].firstMatch("ac"), 3777);
-  assertToStringEquals("b,", res[1292].firstMatch("bbbbc"), 3778);
-  assertToStringEquals("ab,a", res[1292].firstMatch("abc"), 3779);
-  assertNull(res[1292].firstMatch("*** Failers"), 3780);
-  assertToStringEquals("b,", res[1292].firstMatch("bca"), 3781);
-  assertNull(res[1292].firstMatch(""), 3782);
-  assertToStringEquals("ab,a", res[1292].firstMatch("abc"), 3783);
-  assertNull(res[1292].firstMatch("*** Failers"), 3784);
-  assertToStringEquals("b,", res[1292].firstMatch("bca"), 3785);
-  assertToStringEquals("ab,a", res[1292].firstMatch("abc"), 3786);
-  assertNull(res[1292].firstMatch("*** Failers"), 3787);
-  assertNull(res[1292].firstMatch("def  "), 3788);
-  assertNull(res[1292].firstMatch(""), 3789);
-  assertToStringEquals("ab,a", res[1292].firstMatch("abc"), 3790);
-  assertNull(res[1292].firstMatch("*** Failers"), 3791);
-  assertNull(res[1292].firstMatch("def  "), 3792);
-  assertNull(res[1292].firstMatch(""), 3793);
-  assertToStringEquals(
-      "line\nbreak", res[1293].firstMatch("this is a line\nbreak"), 3794);
-  assertToStringEquals(
-      "line\nbreak",
-      res[1293]
-          .firstMatch("line one\nthis is a line\nbreak in the second line "),
-      3795);
-  assertToStringEquals(
-      "line\nbreak", res[1294].firstMatch("this is a line\nbreak"), 3796);
-  assertNull(res[1294].firstMatch("** Failers "), 3797);
-  assertToStringEquals(
-      "line\nbreak",
-      res[1294]
-          .firstMatch("line one\nthis is a line\nbreak in the second line "),
-      3798);
-  assertToStringEquals(
-      "line\nbreak", res[1295].firstMatch("this is a line\nbreak"), 3799);
-  assertNull(res[1295].firstMatch("** Failers "), 3800);
-  assertToStringEquals(
-      "line\nbreak",
-      res[1295]
-          .firstMatch("line one\nthis is a line\nbreak in the second line "),
-      3801);
-  assertNull(res[1296].firstMatch("123P"), 3802);
-  assertNull(res[1296].firstMatch("a4PR"), 3803);
-  assertNull(res[1297].firstMatch("123P"), 3804);
-  assertNull(res[1297].firstMatch("4PR"), 3805);
-  assertToStringEquals("", res[1298].firstMatch("a\nb\nc\n"), 3806);
-  assertToStringEquals("", res[1298].firstMatch(" "), 3807);
-  assertToStringEquals("", res[1298].firstMatch("A\nC\nC\n "), 3808);
-  assertToStringEquals("", res[1298].firstMatch("AB"), 3809);
-  assertToStringEquals("", res[1298].firstMatch("aB  "), 3810);
-  assertToStringEquals("", res[1298].firstMatch("AB"), 3811);
-  assertToStringEquals("", res[1298].firstMatch("aB  "), 3812);
-  assertToStringEquals("", res[1298].firstMatch("AB"), 3813);
-  assertToStringEquals("", res[1298].firstMatch("aB  "), 3814);
-  assertToStringEquals("", res[1298].firstMatch("AB"), 3815);
-  assertToStringEquals("", res[1298].firstMatch("aB  "), 3816);
-  assertToStringEquals("Content-Type:xxxxxyyy ",
-      res[1299].firstMatch("Content-Type:xxxxxyyy "), 3817);
-  assertToStringEquals("Content-Type:xxxxxyyyz",
-      res[1300].firstMatch("Content-Type:xxxxxyyyz"), 3818);
-  assertToStringEquals("Content-Type:xxxyyy ",
-      res[1301].firstMatch("Content-Type:xxxyyy "), 3819);
-  assertToStringEquals("Content-Type:xxxyyyz",
-      res[1302].firstMatch("Content-Type:xxxyyyz"), 3820);
-  assertToStringEquals("abc", res[1303].firstMatch("xyz\nabc"), 3821);
-  assertToStringEquals("abc", res[1303].firstMatch("xyz\nabc<lf>"), 3822);
-  assertToStringEquals("abc", res[1303].firstMatch("xyz\x0d\nabc<lf>"), 3823);
-  assertToStringEquals("abc", res[1303].firstMatch("xyz\x0dabc<cr>"), 3824);
-  assertToStringEquals("abc", res[1303].firstMatch("xyz\x0d\nabc<crlf>"), 3825);
-  assertNull(res[1303].firstMatch("** Failers "), 3826);
-  assertToStringEquals("abc", res[1303].firstMatch("xyz\nabc<cr>"), 3827);
-  assertToStringEquals("abc", res[1303].firstMatch("xyz\x0d\nabc<cr>"), 3828);
-  assertToStringEquals("abc", res[1303].firstMatch("xyz\nabc<crlf>"), 3829);
-  assertToStringEquals("abc", res[1303].firstMatch("xyz\x0dabc<crlf>"), 3830);
-  assertToStringEquals("abc", res[1303].firstMatch("xyz\x0dabc<lf>"), 3831);
-  assertToStringEquals("abc", res[1304].firstMatch("xyzabc"), 3832);
-  assertToStringEquals("abc", res[1304].firstMatch("xyzabc\n "), 3833);
-  assertToStringEquals("abc", res[1304].firstMatch("xyzabc\npqr "), 3834);
-  assertToStringEquals("abc", res[1304].firstMatch("xyzabc\x0d<cr> "), 3835);
-  assertToStringEquals("abc", res[1304].firstMatch("xyzabc\x0dpqr<cr> "), 3836);
-  assertToStringEquals(
-      "abc", res[1304].firstMatch("xyzabc\x0d\n<crlf> "), 3837);
-  assertToStringEquals(
-      "abc", res[1304].firstMatch("xyzabc\x0d\npqr<crlf> "), 3838);
-  assertNull(res[1304].firstMatch("** Failers"), 3839);
-  assertToStringEquals("abc", res[1304].firstMatch("xyzabc\x0d "), 3840);
-  assertToStringEquals("abc", res[1304].firstMatch("xyzabc\x0dpqr "), 3841);
-  assertToStringEquals("abc", res[1304].firstMatch("xyzabc\x0d\n "), 3842);
-  assertToStringEquals("abc", res[1304].firstMatch("xyzabc\x0d\npqr "), 3843);
-  assertToStringEquals("abc", res[1305].firstMatch("xyz\x0dabcdef"), 3844);
-  assertToStringEquals("abc", res[1305].firstMatch("xyz\nabcdef<lf>"), 3845);
-  assertNull(res[1305].firstMatch("** Failers  "), 3846);
-  assertToStringEquals("abc", res[1305].firstMatch("xyz\nabcdef"), 3847);
-  assertNull(res[1305].firstMatch("   "), 3848);
-  assertToStringEquals("abc", res[1306].firstMatch("xyz\nabcdef"), 3849);
-  assertToStringEquals("abc", res[1306].firstMatch("xyz\x0dabcdef<cr>"), 3850);
-  assertNull(res[1306].firstMatch("** Failers  "), 3851);
-  assertToStringEquals("abc", res[1306].firstMatch("xyz\x0dabcdef"), 3852);
-  assertNull(res[1306].firstMatch("   "), 3853);
-  assertToStringEquals("abc", res[1307].firstMatch("xyz\x0d\nabcdef"), 3854);
-  assertToStringEquals("abc", res[1307].firstMatch("xyz\x0dabcdef<cr>"), 3855);
-  assertNull(res[1307].firstMatch("** Failers  "), 3856);
-  assertToStringEquals("abc", res[1307].firstMatch("xyz\x0dabcdef"), 3857);
-  assertToStringEquals("abc", res[1308].firstMatch("abc\ndef"), 3858);
-  assertToStringEquals("abc", res[1308].firstMatch("abc\x0ddef"), 3859);
-  assertToStringEquals("abc", res[1308].firstMatch("abc\x0d\ndef"), 3860);
-  assertToStringEquals("<cr>abc", res[1308].firstMatch("<cr>abc\ndef"), 3861);
-  assertToStringEquals("<cr>abc", res[1308].firstMatch("<cr>abc\x0ddef"), 3862);
-  assertToStringEquals(
-      "<cr>abc", res[1308].firstMatch("<cr>abc\x0d\ndef"), 3863);
-  assertToStringEquals(
-      "<crlf>abc", res[1308].firstMatch("<crlf>abc\ndef"), 3864);
-  assertToStringEquals(
-      "<crlf>abc", res[1308].firstMatch("<crlf>abc\x0ddef"), 3865);
-  assertToStringEquals(
-      "<crlf>abc", res[1308].firstMatch("<crlf>abc\x0d\ndef"), 3866);
-  assertNull(res[1309].firstMatch("abc\ndef"), 3867);
-  assertNull(res[1309].firstMatch("abc\x0ddef"), 3868);
-  assertNull(res[1309].firstMatch("abc\x0d\ndef"), 3869);
-  assertToStringEquals(
-      "abc=xyz\\,", res[1310].firstMatch("abc=xyz\\\npqr"), 3870);
-  assertToStringEquals("aaaa,a,", res[1311].firstMatch("aaaa"), 3871);
-  assertToStringEquals("aaaa", res[1312].firstMatch("aaaa"), 3872);
-  assertToStringEquals("aaaa,a,", res[1313].firstMatch("aaaa"), 3873);
-  assertToStringEquals("aaaa", res[1314].firstMatch("aaaa"), 3874);
-  assertNull(res[1317].firstMatch("a\x0db"), 3875);
-  assertNull(res[1317].firstMatch("a\nb<cr> "), 3876);
-  assertNull(res[1317].firstMatch("** Failers"), 3877);
-  assertNull(res[1317].firstMatch("a\nb"), 3878);
-  assertNull(res[1317].firstMatch("a\nb<any>"), 3879);
-  assertNull(res[1317].firstMatch("a\x0db<cr>   "), 3880);
-  assertNull(res[1317].firstMatch("a\x0db<any>   "), 3881);
-  assertToStringEquals(
-      "abc1",
-      res[1318].firstMatch(
-          "abc1 \nabc2 \x0babc3xx \x0cabc4 \x0dabc5xx \x0d\nabc6 \x85abc7 JUNK"),
-      3882);
-  assertToStringEquals(
-      "abc1",
-      res[1319].firstMatch(
-          "abc1\n abc2\x0b abc3\x0c abc4\x0d abc5\x0d\n abc6\x85 abc9"),
-      3883);
-  assertNull(res[1320].firstMatch("a\nb"), 3884);
-  assertNull(res[1320].firstMatch("a\x0db"), 3885);
-  assertNull(res[1320].firstMatch("a\x0d\nb"), 3886);
-  assertNull(res[1320].firstMatch("a\x0bb"), 3887);
-  assertNull(res[1320].firstMatch("a\x0cb"), 3888);
-  assertNull(res[1320].firstMatch("a\x85b   "), 3889);
-  assertNull(res[1320].firstMatch("** Failers"), 3890);
-  assertNull(res[1320].firstMatch("a\n\x0db    "), 3891);
-  assertToStringEquals("ab", res[1321].firstMatch("ab"), 3892);
-  assertNull(res[1321].firstMatch("a\nb"), 3893);
-  assertNull(res[1321].firstMatch("a\x0db"), 3894);
-  assertNull(res[1321].firstMatch("a\x0d\nb"), 3895);
-  assertNull(res[1321].firstMatch("a\x0bb"), 3896);
-  assertNull(res[1321].firstMatch("a\x0cb"), 3897);
-  assertNull(res[1321].firstMatch("a\x85b   "), 3898);
-  assertNull(res[1321].firstMatch("a\n\x0db    "), 3899);
-  assertNull(res[1321].firstMatch("a\n\x0d\x85\x0cb "), 3900);
-  assertNull(res[1322].firstMatch("a\nb"), 3901);
-  assertNull(res[1322].firstMatch("a\x0db"), 3902);
-  assertNull(res[1322].firstMatch("a\x0d\nb"), 3903);
-  assertNull(res[1322].firstMatch("a\x0bb"), 3904);
-  assertNull(res[1322].firstMatch("a\x0cb"), 3905);
-  assertNull(res[1322].firstMatch("a\x85b   "), 3906);
-  assertNull(res[1322].firstMatch("a\n\x0db    "), 3907);
-  assertNull(res[1322].firstMatch("a\n\x0d\x85\x0cb "), 3908);
-  assertNull(res[1322].firstMatch("** Failers"), 3909);
-  assertNull(res[1322].firstMatch("ab  "), 3910);
-  assertNull(res[1323].firstMatch("a\nb"), 3911);
-  assertNull(res[1323].firstMatch("a\n\x0db"), 3912);
-  assertNull(res[1323].firstMatch("a\n\x0d\x85b"), 3913);
-  assertNull(res[1323].firstMatch("a\x0d\n\x0d\nb "), 3914);
-  assertNull(res[1323].firstMatch("a\x0d\n\x0d\n\x0d\nb "), 3915);
-  assertNull(res[1323].firstMatch("a\n\x0d\n\x0db"), 3916);
-  assertNull(res[1323].firstMatch("a\n\n\x0d\nb "), 3917);
-  assertNull(res[1323].firstMatch("** Failers"), 3918);
-  assertNull(res[1323].firstMatch("a\n\n\n\x0db"), 3919);
-  assertNull(res[1323].firstMatch("a\x0d"), 3920);
-  assertToStringEquals("aRb", res[1324].firstMatch("aRb"), 3921);
-  assertNull(res[1324].firstMatch("** Failers"), 3922);
-  assertNull(res[1324].firstMatch("a\nb  "), 3923);
-  assertToStringEquals("afoo", res[1325].firstMatch("afoo"), 3924);
-  assertNull(res[1325].firstMatch("** Failers "), 3925);
-  assertNull(res[1325].firstMatch("\x0d\nfoo "), 3926);
-  assertNull(res[1325].firstMatch("\nfoo "), 3927);
-  assertToStringEquals("afoo", res[1326].firstMatch("afoo"), 3928);
-  assertNull(res[1326].firstMatch("\nfoo "), 3929);
-  assertNull(res[1326].firstMatch("** Failers "), 3930);
-  assertNull(res[1326].firstMatch("\x0d\nfoo "), 3931);
-  assertToStringEquals("afoo", res[1327].firstMatch("afoo"), 3932);
-  assertNull(res[1327].firstMatch("** Failers "), 3933);
-  assertNull(res[1327].firstMatch("\nfoo "), 3934);
-  assertNull(res[1327].firstMatch("\x0d\nfoo "), 3935);
-  assertToStringEquals("afoo", res[1328].firstMatch("afoo"), 3936);
-  assertNull(res[1328].firstMatch("\x0d\nfoo "), 3937);
-  assertNull(res[1328].firstMatch("\nfoo "), 3938);
-  assertToStringEquals("", res[1329].firstMatch("abc\x0d\x0dxyz"), 3939);
-  assertToStringEquals("", res[1329].firstMatch("abc\n\x0dxyz  "), 3940);
-  assertNull(res[1329].firstMatch("** Failers "), 3941);
-  assertToStringEquals("", res[1329].firstMatch("abc\x0d\nxyz"), 3942);
-  assertToStringEquals("X", res[1330].firstMatch("XABC"), 3943);
-  assertNull(res[1330].firstMatch("** Failers "), 3944);
-  assertToStringEquals("X", res[1330].firstMatch("XABCB"), 3945);
-  assertNull(res[1330].firstMatch("abc\x0d\n\x0d\n"), 3946);
-  assertNull(res[1330].firstMatch("abc\x0d\n\x0d\n"), 3947);
-  assertNull(res[1330].firstMatch("abc\x0d\n\x0d\n"), 3948);
-  assertThrows(() => new RegExp(r"(?|(abc)|(xyz))"), 3949);
-  assertThrows(() => new RegExp(r"(x)(?|(abc)|(xyz))(x)"), 3950);
-  assertNull(res[1330].firstMatch("xabcx"), 3951);
-  assertNull(res[1330].firstMatch("xxyzx "), 3952);
-  assertThrows(() => new RegExp(r"(x)(?|(abc)(pqr)|(xyz))(x)"), 3953);
-  assertNull(res[1330].firstMatch("xabcpqrx"), 3954);
-  assertNull(res[1330].firstMatch("xxyzx "), 3955);
-  assertNull(res[1330].firstMatch("abcabc"), 3956);
-  assertNull(res[1330].firstMatch("xyzabc "), 3957);
-  assertNull(res[1330].firstMatch("** Failers "), 3958);
-  assertNull(res[1330].firstMatch("xyzxyz "), 3959);
-  assertNull(res[1331].firstMatch("X X\n"), 3960);
-  assertNull(res[1331].firstMatch("X\x09X\x0b"), 3961);
-  assertNull(res[1331].firstMatch("** Failers"), 3962);
-  assertNull(res[1331].firstMatch("\xa0 X\n   "), 3963);
-  assertNull(res[1332].firstMatch("\x09 \xa0X\n\x0b\x0c\x0d\n"), 3964);
-  assertNull(res[1332].firstMatch("\x09 \xa0\n\x0b\x0c\x0d\n"), 3965);
-  assertNull(res[1332].firstMatch("\x09 \xa0\n\x0b\x0c"), 3966);
-  assertNull(res[1332].firstMatch("** Failers "), 3967);
-  assertNull(res[1332].firstMatch("\x09 \xa0\n\x0b"), 3968);
-  assertNull(res[1332].firstMatch(" "), 3969);
-  assertNull(res[1333].firstMatch("XY  ABCDE"), 3970);
-  assertNull(res[1333].firstMatch("XY  PQR ST "), 3971);
-  assertNull(res[1334].firstMatch("XY  AB    PQRS"), 3972);
-  assertNull(res[1335].firstMatch(">XNNNYZ"), 3973);
-  assertNull(res[1335].firstMatch(">  X NYQZ"), 3974);
-  assertNull(res[1335].firstMatch("** Failers"), 3975);
-  assertNull(res[1335].firstMatch(">XYZ   "), 3976);
-  assertNull(res[1335].firstMatch(">  X NY Z"), 3977);
-  assertNull(res[1336].firstMatch(">XY\nZ\nA\x0bNN\x0c"), 3978);
-  assertNull(
-      res[1336].firstMatch(">\n\x0dX\nY\n\x0bZZZ\nAAA\x0bNNN\x0c"), 3979);
-  assertNull(res[1337].firstMatch("\x0d\nA"), 3980);
-  assertToStringEquals("\nA", res[1338].firstMatch("\x0d\nA "), 3981);
-  assertToStringEquals("\nA", res[1339].firstMatch("\x0d\nA "), 3982);
-  assertToStringEquals("\nA,\n", res[1340].firstMatch("\x0d\nA "), 3983);
-  assertNull(res[1341].firstMatch("a\x0db"), 3984);
-  assertNull(res[1341].firstMatch("a\nb"), 3985);
-  assertNull(res[1341].firstMatch("a\x0d\nb"), 3986);
-  assertNull(res[1341].firstMatch("** Failers"), 3987);
-  assertNull(res[1341].firstMatch("a\x85b"), 3988);
-  assertNull(res[1341].firstMatch("a\x0bb     "), 3989);
-  assertNull(res[1342].firstMatch("a\x0db"), 3990);
-  assertNull(res[1342].firstMatch("a\nb"), 3991);
-  assertNull(res[1342].firstMatch("a\x0d\nb"), 3992);
-  assertNull(res[1342].firstMatch("a\x85b"), 3993);
-  assertNull(res[1342].firstMatch("a\x0bb     "), 3994);
-  assertNull(res[1342].firstMatch("** Failers "), 3995);
-  assertNull(res[1342].firstMatch("a\x85b<bsr_anycrlf>"), 3996);
-  assertNull(res[1342].firstMatch("a\x0bb<bsr_anycrlf>"), 3997);
-  assertNull(res[1343].firstMatch("a\x0db"), 3998);
-  assertNull(res[1343].firstMatch("a\nb"), 3999);
-  assertNull(res[1343].firstMatch("a\x0d\nb"), 4000);
-  assertNull(res[1343].firstMatch("** Failers"), 4001);
-  assertNull(res[1343].firstMatch("a\x85b"), 4002);
-  assertNull(res[1343].firstMatch("a\x0bb     "), 4003);
-  assertNull(res[1344].firstMatch("a\x0db"), 4004);
-  assertNull(res[1344].firstMatch("a\nb"), 4005);
-  assertNull(res[1344].firstMatch("a\x0d\nb"), 4006);
-  assertNull(res[1344].firstMatch("a\x85b"), 4007);
-  assertNull(res[1344].firstMatch("a\x0bb     "), 4008);
-  assertNull(res[1344].firstMatch("** Failers "), 4009);
-  assertNull(res[1344].firstMatch("a\x85b<bsr_anycrlf>"), 4010);
-  assertNull(res[1344].firstMatch("a\x0bb<bsr_anycrlf>"), 4011);
-  assertNull(res[1345].firstMatch("a\x0d\n\nb"), 4012);
-  assertNull(res[1345].firstMatch("a\n\x0d\x0db"), 4013);
-  assertNull(res[1345].firstMatch("a\x0d\n\x0d\n\x0d\n\x0d\nb"), 4014);
-  assertNull(res[1345].firstMatch("** Failers"), 4015);
-  assertNull(res[1345].firstMatch("a\x8585b"), 4016);
-  assertNull(res[1345].firstMatch("a\x0b\x00bb     "), 4017);
-  assertNull(res[1346].firstMatch("a\x0d\x0db"), 4018);
-  assertNull(res[1346].firstMatch("a\n\n\nb"), 4019);
-  assertNull(res[1346].firstMatch("a\x0d\n\n\x0d\x0db"), 4020);
-  assertNull(res[1346].firstMatch("a\x8585b"), 4021);
-  assertNull(res[1346].firstMatch("a\x0b\x00bb     "), 4022);
-  assertNull(res[1346].firstMatch("** Failers "), 4023);
-  assertNull(res[1346].firstMatch("a\x0d\x0d\x0d\x0d\x0db "), 4024);
-  assertNull(res[1346].firstMatch("a\x8585b<bsr_anycrlf>"), 4025);
-  assertNull(res[1346].firstMatch("a\x0b\x00bb<bsr_anycrlf>"), 4026);
-  assertToStringEquals("abc", res[1347].firstMatch("abc "), 4027);
-  assertNull(res[1348].firstMatch("** Failers"), 4028);
-  assertNull(res[1348].firstMatch("ab"), 4029);
-  assertNull(res[1349].firstMatch("** Failers"), 4030);
-  assertNull(res[1349].firstMatch("ab "), 4031);
-  assertNull(res[1349].firstMatch("** Failers"), 4032);
-  assertNull(res[1349].firstMatch("ab "), 4033);
-  assertToStringEquals("aXb", res[1350].firstMatch("aXb"), 4034);
-  assertToStringEquals("a\nb", res[1350].firstMatch("a\nb "), 4035);
-  assertNull(res[1350].firstMatch("** Failers"), 4036);
-  assertNull(res[1350].firstMatch("ab  "), 4037);
-  assertToStringEquals("aXb", res[1351].firstMatch("aXb"), 4038);
-  assertToStringEquals("a\nX\nXb", res[1351].firstMatch("a\nX\nXb "), 4039);
-  assertNull(res[1351].firstMatch("** Failers"), 4040);
-  assertNull(res[1351].firstMatch("ab  "), 4041);
-  assertNull(res[1352].firstMatch("ab"), 4042);
-  assertNull(res[1352].firstMatch("ax{100}b  "), 4043);
-  assertNull(res[1352].firstMatch("ax{100}x{100}b  "), 4044);
-  assertNull(res[1352].firstMatch("ax{100}b  "), 4045);
-  assertNull(res[1352].firstMatch("ax{100}x{100}b  "), 4046);
-  assertNull(res[1352].firstMatch("*** Failers "), 4047);
-  assertNull(res[1352].firstMatch("ab"), 4048);
-  assertNull(res[1352].firstMatch(" "), 4049);
-  assertToStringEquals("X", res[1353].firstMatch("Xoanon"), 4050);
-  assertToStringEquals("X", res[1353].firstMatch("+Xoanon"), 4051);
-  assertToStringEquals("X", res[1353].firstMatch("x{300}Xoanon "), 4052);
-  assertNull(res[1353].firstMatch("*** Failers "), 4053);
-  assertNull(res[1353].firstMatch("YXoanon  "), 4054);
-  assertToStringEquals("X", res[1354].firstMatch("YXoanon"), 4055);
-  assertNull(res[1354].firstMatch("*** Failers"), 4056);
-  assertNull(res[1354].firstMatch("Xoanon"), 4057);
-  assertNull(res[1354].firstMatch("+Xoanon    "), 4058);
-  assertNull(res[1354].firstMatch("x{300}Xoanon "), 4059);
-  assertToStringEquals("X", res[1355].firstMatch("X+oanon"), 4060);
-  assertNull(res[1355].firstMatch("ZXx{300}oanon "), 4061);
-  assertToStringEquals("X", res[1355].firstMatch("FAX "), 4062);
-  assertNull(res[1355].firstMatch("*** Failers "), 4063);
-  assertNull(res[1355].firstMatch("Xoanon  "), 4064);
-  assertToStringEquals("X", res[1356].firstMatch("Xoanon  "), 4065);
-  assertNull(res[1356].firstMatch("*** Failers"), 4066);
-  assertNull(res[1356].firstMatch("X+oanon"), 4067);
-  assertToStringEquals("X", res[1356].firstMatch("ZXx{300}oanon "), 4068);
-  assertNull(res[1356].firstMatch("FAX "), 4069);
-  assertToStringEquals("b", res[1357].firstMatch("abcd"), 4070);
-  assertToStringEquals("x", res[1357].firstMatch("ax{100}   "), 4071);
-  assertToStringEquals("b", res[1357].firstMatch("ab99"), 4072);
-  assertToStringEquals("x", res[1357].firstMatch("x{123}x{123}45"), 4073);
-  assertToStringEquals(
-      "x", res[1357].firstMatch("x{400}x{401}x{402}6  "), 4074);
-  assertToStringEquals("*", res[1357].firstMatch("*** Failers"), 4075);
-  assertToStringEquals("d", res[1357].firstMatch("d99"), 4076);
-  assertToStringEquals("x", res[1357].firstMatch("x{123}x{122}4   "), 4077);
-  assertToStringEquals("x", res[1357].firstMatch("x{400}x{403}6  "), 4078);
-  assertToStringEquals(
-      "x", res[1357].firstMatch("x{400}x{401}x{402}x{402}6  "), 4079);
-  assertNull(res[1358].firstMatch("\ufffd]"), 4080);
-  assertNull(res[1358].firstMatch("\ufffd"), 4081);
-  assertNull(res[1358].firstMatch("\ufffd\ufffd\ufffd"), 4082);
-  assertNull(res[1358].firstMatch("\ufffd\ufffd\ufffd?"), 4083);
-  assertToStringEquals("acb", res[1359].firstMatch("acb"), 4084);
-  assertToStringEquals("ab", res[1359].firstMatch("ab"), 4085);
-  assertNull(res[1359].firstMatch("ax{100}b "), 4086);
-  assertNull(res[1359].firstMatch("*** Failers"), 4087);
-  assertNull(res[1359].firstMatch("a\nb  "), 4088);
-  assertNull(res[1360].firstMatch("ax{4000}xyb "), 4089);
-  assertNull(res[1360].firstMatch("ax{4000}yb "), 4090);
-  assertNull(res[1360].firstMatch("ax{4000}x{100}yb "), 4091);
-  assertNull(res[1360].firstMatch("*** Failers"), 4092);
-  assertNull(res[1360].firstMatch("ax{4000}b "), 4093);
-  assertNull(res[1360].firstMatch("ac\ncb "), 4094);
-  assertToStringEquals("a\xc0,,\xc0", res[1361].firstMatch("a\xc0\x88b"), 4095);
-  assertToStringEquals("ax,,x", res[1362].firstMatch("ax{100}b"), 4096);
-  assertToStringEquals(
-      "a\xc0\x88b,\xc0\x88,b", res[1363].firstMatch("a\xc0\x88b"), 4097);
-  assertToStringEquals(
-      "ax{100}b,x{100},b", res[1364].firstMatch("ax{100}b"), 4098);
-  assertToStringEquals(
-      "a\xc0\x92,\xc0,\x92", res[1365].firstMatch("a\xc0\x92bcd"), 4099);
-  assertToStringEquals("ax{,x,{", res[1366].firstMatch("ax{240}bcd"), 4100);
-  assertToStringEquals(
-      "a\xc0\x92,\xc0,\x92", res[1367].firstMatch("a\xc0\x92bcd"), 4101);
-  assertToStringEquals("ax{,x,{", res[1368].firstMatch("ax{240}bcd"), 4102);
-  assertToStringEquals(
-      "a\xc0,,\xc0", res[1369].firstMatch("a\xc0\x92bcd"), 4103);
-  assertToStringEquals("ax,,x", res[1370].firstMatch("ax{240}bcd"), 4104);
-  assertNull(res[1371].firstMatch("ax{1234}xyb "), 4105);
-  assertNull(res[1371].firstMatch("ax{1234}x{4321}yb "), 4106);
-  assertNull(res[1371].firstMatch("ax{1234}x{4321}x{3412}b "), 4107);
-  assertNull(res[1371].firstMatch("*** Failers"), 4108);
-  assertNull(res[1371].firstMatch("ax{1234}b "), 4109);
-  assertNull(res[1371].firstMatch("ac\ncb "), 4110);
-  assertToStringEquals(
-      "ax{1234}xyb,x{1234}xy", res[1372].firstMatch("ax{1234}xyb "), 4111);
-  assertToStringEquals("ax{1234}x{4321}yb,x{1234}x{4321}y",
-      res[1372].firstMatch("ax{1234}x{4321}yb "), 4112);
-  assertToStringEquals("ax{1234}x{4321}x{3412}b,x{1234}x{4321}x{3412}",
-      res[1372].firstMatch("ax{1234}x{4321}x{3412}b "), 4113);
-  assertToStringEquals("axxxxbcdefghijb,xxxxbcdefghij",
-      res[1372].firstMatch("axxxxbcdefghijb "), 4114);
-  assertToStringEquals(
-      "ax{1234}x{4321}x{3412}x{3421}b,x{1234}x{4321}x{3412}x{3421}",
-      res[1372].firstMatch("ax{1234}x{4321}x{3412}x{3421}b "),
-      4115);
-  assertNull(res[1372].firstMatch("*** Failers"), 4116);
-  assertToStringEquals(
-      "ax{1234}b,x{1234}", res[1372].firstMatch("ax{1234}b "), 4117);
-  assertToStringEquals(
-      "ax{1234}xyb,x{1234}xy", res[1373].firstMatch("ax{1234}xyb "), 4118);
-  assertToStringEquals("ax{1234}x{4321}yb,x{1234}x{4321}y",
-      res[1373].firstMatch("ax{1234}x{4321}yb "), 4119);
-  assertToStringEquals("ax{1234}x{4321}x{3412}b,x{1234}x{4321}x{3412}",
-      res[1373].firstMatch("ax{1234}x{4321}x{3412}b "), 4120);
-  assertToStringEquals(
-      "axxxxb,xxxx", res[1373].firstMatch("axxxxbcdefghijb "), 4121);
-  assertToStringEquals(
-      "ax{1234}x{4321}x{3412}x{3421}b,x{1234}x{4321}x{3412}x{3421}",
-      res[1373].firstMatch("ax{1234}x{4321}x{3412}x{3421}b "),
-      4122);
-  assertNull(res[1373].firstMatch("*** Failers"), 4123);
-  assertToStringEquals(
-      "ax{1234}b,x{1234}", res[1373].firstMatch("ax{1234}b "), 4124);
-  assertNull(res[1374].firstMatch("ax{1234}xyb "), 4125);
-  assertNull(res[1374].firstMatch("ax{1234}x{4321}yb "), 4126);
-  assertNull(res[1374].firstMatch("ax{1234}x{4321}x{3412}b "), 4127);
-  assertToStringEquals(
-      "axxxxb,xxxx", res[1374].firstMatch("axxxxbcdefghijb "), 4128);
-  assertNull(res[1374].firstMatch("ax{1234}x{4321}x{3412}x{3421}b "), 4129);
-  assertToStringEquals(
-      "axbxxb,xbxx", res[1374].firstMatch("axbxxbcdefghijb "), 4130);
-  assertToStringEquals(
-      "axxxxxb,xxxxx", res[1374].firstMatch("axxxxxbcdefghijb "), 4131);
-  assertNull(res[1374].firstMatch("*** Failers"), 4132);
-  assertNull(res[1374].firstMatch("ax{1234}b "), 4133);
-  assertNull(res[1374].firstMatch("axxxxxxbcdefghijb "), 4134);
-  assertNull(res[1375].firstMatch("ax{1234}xyb "), 4135);
-  assertNull(res[1375].firstMatch("ax{1234}x{4321}yb "), 4136);
-  assertNull(res[1375].firstMatch("ax{1234}x{4321}x{3412}b "), 4137);
-  assertToStringEquals(
-      "axxxxb,xxxx", res[1375].firstMatch("axxxxbcdefghijb "), 4138);
-  assertNull(res[1375].firstMatch("ax{1234}x{4321}x{3412}x{3421}b "), 4139);
-  assertToStringEquals(
-      "axbxxb,xbxx", res[1375].firstMatch("axbxxbcdefghijb "), 4140);
-  assertToStringEquals(
-      "axxxxxb,xxxxx", res[1375].firstMatch("axxxxxbcdefghijb "), 4141);
-  assertNull(res[1375].firstMatch("*** Failers"), 4142);
-  assertNull(res[1375].firstMatch("ax{1234}b "), 4143);
-  assertNull(res[1375].firstMatch("axxxxxxbcdefghijb "), 4144);
-  assertNull(res[1375].firstMatch("*** Failers"), 4145);
-  assertNull(res[1375].firstMatch("x{100}"), 4146);
-  assertNull(res[1375].firstMatch("aXbcd"), 4147);
-  assertNull(res[1375].firstMatch("ax{100}bcd"), 4148);
-  assertNull(res[1375].firstMatch("ax{100000}bcd"), 4149);
-  assertNull(res[1375].firstMatch("x{100}x{100}x{100}b"), 4150);
-  assertNull(res[1375].firstMatch("*** Failers "), 4151);
-  assertNull(res[1375].firstMatch("x{100}x{100}b"), 4152);
-  assertNull(res[1375].firstMatch("x{ab} "), 4153);
-  assertNull(res[1375].firstMatch("\xc2\xab"), 4154);
-  assertNull(res[1375].firstMatch("*** Failers "), 4155);
-  assertNull(res[1375].firstMatch("\x00{ab}"), 4156);
-  assertNull(res[1375].firstMatch("WXYZ"), 4157);
-  assertNull(res[1375].firstMatch("x{256}XYZ "), 4158);
-  assertNull(res[1375].firstMatch("*** Failers"), 4159);
-  assertNull(res[1375].firstMatch("XYZ "), 4160);
-  assertToStringEquals("bcd", res[1376].firstMatch("bcd"), 4161);
-  assertToStringEquals("x{", res[1377].firstMatch("x{100}bc"), 4163);
-  assertToStringEquals("x{100}bcA", res[1378].firstMatch("x{100}bcAa"), 4164);
-  assertToStringEquals("x{", res[1379].firstMatch("x{100}bca"), 4165);
-  assertToStringEquals("bcd", res[1380].firstMatch("bcd"), 4166);
-  assertToStringEquals("x{", res[1381].firstMatch("x{100}bc"), 4168);
-  assertToStringEquals("x{100}bc", res[1382].firstMatch("x{100}bcAa"), 4169);
-  assertToStringEquals("x{", res[1383].firstMatch("x{100}bca"), 4170);
-  assertNull(res[1383].firstMatch("abcd"), 4171);
-  assertNull(res[1383].firstMatch("abcd"), 4172);
-  assertToStringEquals("x{", res[1383].firstMatch("x{100}x{100} "), 4173);
-  assertToStringEquals("x{", res[1383].firstMatch("x{100}x{100} "), 4174);
-  assertToStringEquals(
-      "x{", res[1383].firstMatch("x{100}x{100}x{100}x{100} "), 4175);
-  assertNull(res[1383].firstMatch("abce"), 4176);
-  assertToStringEquals(
-      "x{", res[1383].firstMatch("x{100}x{100}x{100}x{100} "), 4177);
-  assertNull(res[1383].firstMatch("abcdx{100}x{100}x{100}x{100} "), 4178);
-  assertNull(res[1383].firstMatch("abcdx{100}x{100}x{100}x{100} "), 4179);
-  assertNull(res[1383].firstMatch("abcdx{100}x{100}x{100}x{100} "), 4180);
-  assertNull(res[1383].firstMatch("abcdx{100}x{100}x{100}XX"), 4181);
-  assertNull(
-      res[1383].firstMatch("abcdx{100}x{100}x{100}x{100}x{100}x{100}x{100}XX"),
-      4182);
-  assertNull(
-      res[1383].firstMatch("abcdx{100}x{100}x{100}x{100}x{100}x{100}x{100}XX"),
-      4183);
-  assertToStringEquals(
-      "Xy", res[1383].firstMatch("Xyyyax{100}x{100}bXzzz"), 4184);
-  assertToStringEquals("X", res[1386].firstMatch("1X2"), 4185);
-  assertToStringEquals("x", res[1386].firstMatch("1x{100}2 "), 4186);
-  assertToStringEquals(">X", res[1387].firstMatch("> >X Y"), 4187);
-  assertToStringEquals(">x", res[1387].firstMatch("> >x{100} Y"), 4188);
-  assertToStringEquals("1", res[1388].firstMatch("x{100}3"), 4189);
-  assertToStringEquals(" ", res[1389].firstMatch("x{100} X"), 4190);
-  assertToStringEquals("abcd", res[1390].firstMatch("12abcd34"), 4191);
-  assertToStringEquals(
-      "*** Failers", res[1390].firstMatch("*** Failers"), 4192);
-  assertToStringEquals("  ", res[1390].firstMatch("1234  "), 4193);
-  assertToStringEquals("abc", res[1391].firstMatch("12abcd34"), 4194);
-  assertToStringEquals("ab", res[1391].firstMatch("12ab34"), 4195);
-  assertToStringEquals("***", res[1391].firstMatch("*** Failers  "), 4196);
-  assertNull(res[1391].firstMatch("1234"), 4197);
-  assertToStringEquals("  ", res[1391].firstMatch("12a34  "), 4198);
-  assertToStringEquals("ab", res[1392].firstMatch("12abcd34"), 4199);
-  assertToStringEquals("ab", res[1392].firstMatch("12ab34"), 4200);
-  assertToStringEquals("**", res[1392].firstMatch("*** Failers  "), 4201);
-  assertNull(res[1392].firstMatch("1234"), 4202);
-  assertToStringEquals("  ", res[1392].firstMatch("12a34  "), 4203);
-  assertToStringEquals("12", res[1393].firstMatch("12abcd34"), 4204);
-  assertNull(res[1393].firstMatch("*** Failers"), 4205);
-  assertToStringEquals("12", res[1394].firstMatch("12abcd34"), 4206);
-  assertToStringEquals("123", res[1394].firstMatch("1234abcd"), 4207);
-  assertNull(res[1394].firstMatch("*** Failers  "), 4208);
-  assertNull(res[1394].firstMatch("1.4 "), 4209);
-  assertToStringEquals("12", res[1395].firstMatch("12abcd34"), 4210);
-  assertToStringEquals("12", res[1395].firstMatch("1234abcd"), 4211);
-  assertNull(res[1395].firstMatch("*** Failers  "), 4212);
-  assertNull(res[1395].firstMatch("1.4 "), 4213);
-  assertToStringEquals("12abcd34", res[1396].firstMatch("12abcd34"), 4214);
-  assertToStringEquals("***", res[1396].firstMatch("*** Failers"), 4215);
-  assertNull(res[1396].firstMatch("     "), 4216);
-  assertToStringEquals("12a", res[1397].firstMatch("12abcd34"), 4217);
-  assertToStringEquals("123", res[1397].firstMatch("1234abcd"), 4218);
-  assertToStringEquals("***", res[1397].firstMatch("*** Failers"), 4219);
-  assertNull(res[1397].firstMatch("       "), 4220);
-  assertToStringEquals("12", res[1398].firstMatch("12abcd34"), 4221);
-  assertToStringEquals("12", res[1398].firstMatch("1234abcd"), 4222);
-  assertToStringEquals("**", res[1398].firstMatch("*** Failers"), 4223);
-  assertNull(res[1398].firstMatch("       "), 4224);
-  assertToStringEquals(">      <", res[1399].firstMatch("12>      <34"), 4225);
-  assertNull(res[1399].firstMatch("*** Failers"), 4226);
-  assertToStringEquals(">  <", res[1400].firstMatch("ab>  <cd"), 4227);
-  assertToStringEquals(">   <", res[1400].firstMatch("ab>   <ce"), 4228);
-  assertNull(res[1400].firstMatch("*** Failers"), 4229);
-  assertNull(res[1400].firstMatch("ab>    <cd "), 4230);
-  assertToStringEquals(">  <", res[1401].firstMatch("ab>  <cd"), 4231);
-  assertToStringEquals(">   <", res[1401].firstMatch("ab>   <ce"), 4232);
-  assertNull(res[1401].firstMatch("*** Failers"), 4233);
-  assertNull(res[1401].firstMatch("ab>    <cd "), 4234);
-  assertToStringEquals("12", res[1402].firstMatch("12      34"), 4235);
-  assertToStringEquals("Failers", res[1402].firstMatch("*** Failers"), 4236);
-  assertNull(res[1402].firstMatch("+++=*! "), 4237);
-  assertToStringEquals("ab", res[1403].firstMatch("ab  cd"), 4238);
-  assertToStringEquals("abc", res[1403].firstMatch("abcd ce"), 4239);
-  assertToStringEquals("Fai", res[1403].firstMatch("*** Failers"), 4240);
-  assertNull(res[1403].firstMatch("a.b.c"), 4241);
-  assertToStringEquals("ab", res[1404].firstMatch("ab  cd"), 4242);
-  assertToStringEquals("ab", res[1404].firstMatch("abcd ce"), 4243);
-  assertToStringEquals("Fa", res[1404].firstMatch("*** Failers"), 4244);
-  assertNull(res[1404].firstMatch("a.b.c"), 4245);
-  assertToStringEquals("====", res[1405].firstMatch("12====34"), 4246);
-  assertToStringEquals("*** ", res[1405].firstMatch("*** Failers"), 4247);
-  assertToStringEquals(" ", res[1405].firstMatch("abcd "), 4248);
-  assertToStringEquals("===", res[1406].firstMatch("ab====cd"), 4249);
-  assertToStringEquals("==", res[1406].firstMatch("ab==cd"), 4250);
-  assertToStringEquals("***", res[1406].firstMatch("*** Failers"), 4251);
-  assertNull(res[1406].firstMatch("a.b.c"), 4252);
-  assertToStringEquals("==", res[1407].firstMatch("ab====cd"), 4253);
-  assertToStringEquals("==", res[1407].firstMatch("ab==cd"), 4254);
-  assertToStringEquals("**", res[1407].firstMatch("*** Failers"), 4255);
-  assertNull(res[1407].firstMatch("a.b.c"), 4256);
-  assertNull(res[1407].firstMatch("x{100}"), 4257);
-  assertNull(res[1407].firstMatch("Zx{100}"), 4258);
-  assertNull(res[1407].firstMatch("x{100}Z"), 4259);
-  assertToStringEquals("**", res[1407].firstMatch("*** Failers "), 4260);
-  assertNull(res[1407].firstMatch("Zx{100}"), 4261);
-  assertNull(res[1407].firstMatch("x{100}"), 4262);
-  assertNull(res[1407].firstMatch("x{100}Z"), 4263);
-  assertToStringEquals("**", res[1407].firstMatch("*** Failers "), 4264);
-  assertNull(res[1407].firstMatch("abcx{200}X"), 4265);
-  assertNull(res[1407].firstMatch("abcx{100}X "), 4266);
-  assertToStringEquals("**", res[1407].firstMatch("*** Failers"), 4267);
-  assertToStringEquals("  ", res[1407].firstMatch("X  "), 4268);
-  assertNull(res[1407].firstMatch("abcx{200}X"), 4269);
-  assertNull(res[1407].firstMatch("abcx{100}X "), 4270);
-  assertNull(res[1407].firstMatch("abQX "), 4271);
-  assertToStringEquals("**", res[1407].firstMatch("*** Failers"), 4272);
-  assertToStringEquals("  ", res[1407].firstMatch("X  "), 4273);
-  assertNull(res[1407].firstMatch("abcx{100}x{200}x{100}X"), 4274);
-  assertToStringEquals("**", res[1407].firstMatch("*** Failers"), 4275);
-  assertNull(res[1407].firstMatch("abcx{200}X"), 4276);
-  assertToStringEquals("  ", res[1407].firstMatch("X  "), 4277);
-  assertNull(res[1407].firstMatch("AX"), 4278);
-  assertNull(res[1407].firstMatch("x{150}X"), 4279);
-  assertNull(res[1407].firstMatch("x{500}X "), 4280);
-  assertToStringEquals("**", res[1407].firstMatch("*** Failers"), 4281);
-  assertNull(res[1407].firstMatch("x{100}X"), 4282);
-  assertToStringEquals("  ", res[1407].firstMatch("x{200}X   "), 4283);
-  assertNull(res[1407].firstMatch("AX"), 4284);
-  assertNull(res[1407].firstMatch("x{150}X"), 4285);
-  assertNull(res[1407].firstMatch("x{500}X "), 4286);
-  assertToStringEquals("**", res[1407].firstMatch("*** Failers"), 4287);
-  assertNull(res[1407].firstMatch("x{100}X"), 4288);
-  assertToStringEquals("  ", res[1407].firstMatch("x{200}X   "), 4289);
-  assertNull(res[1407].firstMatch("QX "), 4290);
-  assertNull(res[1407].firstMatch("AX"), 4291);
-  assertNull(res[1407].firstMatch("x{500}X "), 4292);
-  assertToStringEquals("**", res[1407].firstMatch("*** Failers"), 4293);
-  assertNull(res[1407].firstMatch("x{100}X"), 4294);
-  assertNull(res[1407].firstMatch("x{150}X"), 4295);
-  assertToStringEquals("  ", res[1407].firstMatch("x{200}X   "), 4296);
-  assertNull(res[1407].firstMatch("z"), 4297);
-  assertNull(res[1407].firstMatch("Z "), 4298);
-  assertNull(res[1407].firstMatch("x{100}"), 4299);
-  assertToStringEquals("**", res[1407].firstMatch("*** Failers"), 4300);
-  assertNull(res[1407].firstMatch("x{102}"), 4301);
-  assertToStringEquals("  ", res[1407].firstMatch("y    "), 4302);
-  assertToStringEquals("\xff", res[1408].firstMatch(">\xff<"), 4303);
-  assertNull(res[1409].firstMatch(">x{ff}<"), 4304);
-  assertToStringEquals("X", res[1410].firstMatch("XYZ"), 4305);
-  assertToStringEquals("X", res[1411].firstMatch("XYZ"), 4306);
-  assertToStringEquals("x", res[1411].firstMatch("x{123} "), 4307);
-  assertToStringEquals(",", res[1416].firstMatch("catac"), 4308);
-  assertToStringEquals(",", res[1416].firstMatch("ax{256}a "), 4309);
-  assertToStringEquals(",", res[1416].firstMatch("x{85}"), 4310);
-  assertToStringEquals(
-      "abc1",
-      res[1417].firstMatch(
-          "abc1 \nabc2 \x0babc3xx \x0cabc4 \x0dabc5xx \x0d\nabc6 x{0085}abc7 x{2028}abc8 x{2029}abc9 JUNK"),
-      4311);
-  assertToStringEquals(
-      "abc1",
-      res[1418].firstMatch(
-          "abc1\n abc2\x0b abc3\x0c abc4\x0d abc5\x0d\n abc6x{0085} abc7x{2028} abc8x{2029} abc9"),
-      4312);
-  assertNull(res[1419].firstMatch("a\nb"), 4313);
-  assertNull(res[1419].firstMatch("a\x0db"), 4314);
-  assertNull(res[1419].firstMatch("a\x0d\nb"), 4315);
-  assertNull(res[1419].firstMatch("a\x0bb"), 4316);
-  assertNull(res[1419].firstMatch("a\x0cb"), 4317);
-  assertNull(res[1419].firstMatch("ax{85}b   "), 4318);
-  assertNull(res[1419].firstMatch("ax{2028}b "), 4319);
-  assertNull(res[1419].firstMatch("ax{2029}b "), 4320);
-  assertNull(res[1419].firstMatch("** Failers"), 4321);
-  assertNull(res[1419].firstMatch("a\n\x0db    "), 4322);
-  assertToStringEquals("ab", res[1420].firstMatch("ab"), 4323);
-  assertNull(res[1420].firstMatch("a\nb"), 4324);
-  assertNull(res[1420].firstMatch("a\x0db"), 4325);
-  assertNull(res[1420].firstMatch("a\x0d\nb"), 4326);
-  assertNull(res[1420].firstMatch("a\x0bb"), 4327);
-  assertNull(res[1420].firstMatch("a\x0cx{2028}x{2029}b"), 4328);
-  assertNull(res[1420].firstMatch("ax{85}b   "), 4329);
-  assertNull(res[1420].firstMatch("a\n\x0db    "), 4330);
-  assertNull(res[1420].firstMatch("a\n\x0dx{85}\x0cb "), 4331);
-  assertNull(res[1421].firstMatch("a\nb"), 4332);
-  assertNull(res[1421].firstMatch("a\x0db"), 4333);
-  assertNull(res[1421].firstMatch("a\x0d\nb"), 4334);
-  assertNull(res[1421].firstMatch("a\x0bb"), 4335);
-  assertNull(res[1421].firstMatch("a\x0cx{2028}x{2029}b"), 4336);
-  assertNull(res[1421].firstMatch("ax{85}b   "), 4337);
-  assertNull(res[1421].firstMatch("a\n\x0db    "), 4338);
-  assertNull(res[1421].firstMatch("a\n\x0dx{85}\x0cb "), 4339);
-  assertNull(res[1421].firstMatch("** Failers"), 4340);
-  assertNull(res[1421].firstMatch("ab  "), 4341);
-  assertNull(res[1422].firstMatch("a\nb"), 4342);
-  assertNull(res[1422].firstMatch("a\n\x0db"), 4343);
-  assertNull(res[1422].firstMatch("a\n\x0dx{85}b"), 4344);
-  assertNull(res[1422].firstMatch("a\x0d\n\x0d\nb "), 4345);
-  assertNull(res[1422].firstMatch("a\x0d\n\x0d\n\x0d\nb "), 4346);
-  assertNull(res[1422].firstMatch("a\n\x0d\n\x0db"), 4347);
-  assertNull(res[1422].firstMatch("a\n\n\x0d\nb "), 4348);
-  assertNull(res[1422].firstMatch("** Failers"), 4349);
-  assertNull(res[1422].firstMatch("a\n\n\n\x0db"), 4350);
-  assertNull(res[1422].firstMatch("a\x0d"), 4351);
-  assertNull(res[1423].firstMatch("\x09 x{a0}X\n\x0b\x0c\x0d\n"), 4352);
-  assertNull(res[1424].firstMatch(" x{a0}X\n\x0b\x0c\x0d\n"), 4353);
-  assertNull(res[1425].firstMatch(">\x09 x{a0}X\n\n\n<"), 4354);
-  assertNull(res[1426].firstMatch(">\x09 x{a0}X\n\n\n<"), 4355);
-  assertNull(res[1427].firstMatch("X X\n"), 4356);
-  assertNull(res[1427].firstMatch("X\x09X\x0b"), 4357);
-  assertNull(res[1427].firstMatch("** Failers"), 4358);
-  assertNull(res[1427].firstMatch("x{a0} X\n   "), 4359);
-  assertNull(res[1428].firstMatch("\x09 x{a0}X\n\x0b\x0c\x0d\n"), 4360);
-  assertNull(res[1428].firstMatch("\x09 x{a0}\n\x0b\x0c\x0d\n"), 4361);
-  assertNull(res[1428].firstMatch("\x09 x{a0}\n\x0b\x0c"), 4362);
-  assertNull(res[1428].firstMatch("** Failers "), 4363);
-  assertNull(res[1428].firstMatch("\x09 x{a0}\n\x0b"), 4364);
-  assertNull(res[1428].firstMatch(" "), 4365);
-  assertNull(res[1429].firstMatch("x{3001}x{3000}x{2030}x{2028}"), 4366);
-  assertNull(res[1429].firstMatch("Xx{180e}Xx{85}"), 4367);
-  assertNull(res[1429].firstMatch("** Failers"), 4368);
-  assertNull(res[1429].firstMatch("x{2009} X\n   "), 4369);
-  assertNull(
-      res[1430].firstMatch("x{1680}x{180e}x{2007}Xx{2028}x{2029}\x0c\x0d\n"),
-      4370);
-  assertNull(
-      res[1430].firstMatch("\x09x{205f}x{a0}\nx{2029}\x0cx{2028}\n"), 4371);
-  assertNull(res[1430].firstMatch("\x09 x{202f}\n\x0b\x0c"), 4372);
-  assertNull(res[1430].firstMatch("** Failers "), 4373);
-  assertNull(res[1430].firstMatch("\x09x{200a}x{a0}x{2028}\x0b"), 4374);
-  assertNull(res[1430].firstMatch(" "), 4375);
-  assertNull(res[1431].firstMatch("a\x0db"), 4376);
-  assertNull(res[1431].firstMatch("a\nb"), 4377);
-  assertNull(res[1431].firstMatch("a\x0d\nb"), 4378);
-  assertNull(res[1431].firstMatch("** Failers"), 4379);
-  assertNull(res[1431].firstMatch("ax{85}b"), 4380);
-  assertNull(res[1431].firstMatch("a\x0bb     "), 4381);
-  assertNull(res[1432].firstMatch("a\x0db"), 4382);
-  assertNull(res[1432].firstMatch("a\nb"), 4383);
-  assertNull(res[1432].firstMatch("a\x0d\nb"), 4384);
-  assertNull(res[1432].firstMatch("ax{85}b"), 4385);
-  assertNull(res[1432].firstMatch("a\x0bb     "), 4386);
-  assertNull(res[1432].firstMatch("** Failers "), 4387);
-  assertNull(res[1432].firstMatch("ax{85}b<bsr_anycrlf>"), 4388);
-  assertNull(res[1432].firstMatch("a\x0bb<bsr_anycrlf>"), 4389);
-  assertNull(res[1433].firstMatch("a\x0db"), 4390);
-  assertNull(res[1433].firstMatch("a\nb"), 4391);
-  assertNull(res[1433].firstMatch("a\x0d\nb"), 4392);
-  assertNull(res[1433].firstMatch("** Failers"), 4393);
-  assertNull(res[1433].firstMatch("ax{85}b"), 4394);
-  assertNull(res[1433].firstMatch("a\x0bb     "), 4395);
-  assertNull(res[1434].firstMatch("a\x0db"), 4396);
-  assertNull(res[1434].firstMatch("a\nb"), 4397);
-  assertNull(res[1434].firstMatch("a\x0d\nb"), 4398);
-  assertNull(res[1434].firstMatch("ax{85}b"), 4399);
-  assertNull(res[1434].firstMatch("a\x0bb     "), 4400);
-  assertNull(res[1434].firstMatch("** Failers "), 4401);
-  assertNull(res[1434].firstMatch("ax{85}b<bsr_anycrlf>"), 4402);
-  assertNull(res[1434].firstMatch("a\x0bb<bsr_anycrlf>"), 4403);
-  assertToStringEquals("X", res[1435].firstMatch("Ax{1ec5}ABCXYZ"), 4404);
-  assertNull(res[1437].firstMatch("AB"), 4405);
-  assertNull(res[1437].firstMatch("*** Failers"), 4406);
-  assertNull(res[1437].firstMatch("A0"), 4407);
-  assertNull(res[1437].firstMatch("00   "), 4408);
-  assertNull(res[1438].firstMatch("AB"), 4409);
-  assertNull(res[1438].firstMatch("Ax{300}BC "), 4410);
-  assertNull(res[1438].firstMatch("Ax{300}x{301}x{302}BC "), 4411);
-  assertNull(res[1438].firstMatch("*** Failers"), 4412);
-  assertNull(res[1438].firstMatch("x{300}  "), 4413);
-  assertNull(res[1439].firstMatch("ABC"), 4414);
-  assertNull(res[1439].firstMatch("Ax{300}Bx{300}x{301}C "), 4415);
-  assertNull(res[1439].firstMatch("Ax{300}x{301}x{302}BC "), 4416);
-  assertNull(res[1439].firstMatch("*** Failers"), 4417);
-  assertNull(res[1439].firstMatch("x{300}  "), 4418);
-  assertNull(res[1440].firstMatch("abcd"), 4419);
-  assertNull(res[1440].firstMatch("a "), 4420);
-  assertNull(res[1440].firstMatch("*** Failers "), 4421);
-  assertNull(res[1441].firstMatch("1234"), 4422);
-  assertNull(res[1441].firstMatch("= "), 4423);
-  assertNull(res[1441].firstMatch("*** Failers "), 4424);
-  assertNull(res[1441].firstMatch("abcd "), 4425);
-  assertNull(res[1442].firstMatch("abcdAx{300}x{301}x{302}"), 4426);
-  assertNull(res[1442].firstMatch("Ax{300}x{301}x{302}"), 4427);
-  assertNull(
-      res[1442].firstMatch("Ax{300}x{301}x{302}Ax{300}x{301}x{302}"), 4428);
-  assertNull(res[1442].firstMatch("a "), 4429);
-  assertNull(res[1442].firstMatch("*** Failers "), 4430);
-  assertNull(res[1442].firstMatch("x{300}x{301}x{302}"), 4431);
-  assertToStringEquals("abc", res[1443].firstMatch("abc"), 4432);
-  assertToStringEquals("abc", res[1443].firstMatch("Ax{300}abc"), 4433);
-  assertToStringEquals(
-      "abc",
-      res[1443].firstMatch("Ax{300}x{301}x{302}Ax{300}Ax{300}Ax{300}abcxyz"),
-      4434);
-  assertToStringEquals("abc", res[1443].firstMatch("x{300}abc  "), 4435);
-  assertNull(res[1443].firstMatch("*** Failers"), 4436);
-  assertToStringEquals("abc", res[1444].firstMatch("abc"), 4437);
-  assertNull(res[1444].firstMatch("Ax{300}abc"), 4438);
-  assertNull(res[1444].firstMatch("*** Failers"), 4439);
-  assertNull(
-      res[1444].firstMatch("Ax{300}x{301}x{302}Ax{300}Ax{300}Ax{300}abcxyz"),
-      4440);
-  assertNull(res[1444].firstMatch("x{300}abc  "), 4441);
-  assertToStringEquals("abc", res[1445].firstMatch("abc"), 4442);
-  assertToStringEquals("abc", res[1445].firstMatch("Ax{300}abc"), 4443);
-  assertToStringEquals(
-      "abc",
-      res[1445].firstMatch("Ax{300}x{301}x{302}Ax{300}Ax{300}Ax{300}abcxyz"),
-      4444);
-  assertToStringEquals("abc", res[1445].firstMatch("x{300}abc  "), 4445);
-  assertNull(res[1445].firstMatch("*** Failers"), 4446);
-  assertToStringEquals("abc", res[1446].firstMatch("abc"), 4447);
-  assertNull(res[1446].firstMatch("Ax{300}abc"), 4448);
-  assertNull(
-      res[1446].firstMatch("Ax{300}x{301}x{302}Ax{300}Ax{300}Ax{300}abcxyz"),
-      4449);
-  assertNull(res[1446].firstMatch("*** Failers"), 4450);
-  assertNull(res[1446].firstMatch("x{300}abc  "), 4451);
-  assertNull(res[1447].firstMatch("A=b"), 4452);
-  assertNull(res[1447].firstMatch("=c "), 4453);
-  assertNull(res[1447].firstMatch("*** Failers"), 4454);
-  assertNull(res[1447].firstMatch("1=2 "), 4455);
-  assertNull(res[1447].firstMatch("AAAA=b  "), 4456);
-  assertNull(res[1448].firstMatch("AAAA=b"), 4457);
-  assertNull(res[1448].firstMatch("=c "), 4458);
-  assertNull(res[1448].firstMatch("*** Failers"), 4459);
-  assertNull(res[1448].firstMatch("1=2  "), 4460);
-  assertNull(
-      res[1449].firstMatch("Ax{300}x{301}x{302}Ax{300}x{301}x{302}X"), 4461);
-  assertNull(
-      res[1449].firstMatch(
-          "Ax{300}x{301}x{302}Ax{300}x{301}x{302}Ax{300}x{301}x{302}X "),
-      4462);
-  assertNull(res[1449].firstMatch("*** Failers"), 4463);
-  assertNull(res[1449].firstMatch("X"), 4464);
-  assertNull(res[1449].firstMatch("Ax{300}x{301}x{302}X"), 4465);
-  assertNull(
-      res[1449].firstMatch(
-          "Ax{300}x{301}x{302}Ax{300}x{301}x{302}Ax{300}x{301}x{302}Ax{300}x{301}x{302}X"),
-      4466);
-  assertNull(
-      res[1450].firstMatch("x{c0}x{30f}x{660}x{66c}x{f01}x{1680}<"), 4467);
-  assertNull(res[1450].firstMatch("\npx{300}9!\$ < "), 4468);
-  assertNull(res[1450].firstMatch("** Failers "), 4469);
-  assertNull(res[1450].firstMatch("apx{300}9!\$ < "), 4470);
-  assertNull(res[1451].firstMatch("X"), 4471);
-  assertNull(res[1451].firstMatch("** Failers "), 4472);
-  assertNull(res[1451].firstMatch(""), 4473);
-  assertNull(res[1452].firstMatch("9"), 4474);
-  assertNull(res[1452].firstMatch("** Failers "), 4475);
-  assertNull(res[1452].firstMatch("x{c0}"), 4476);
-  assertNull(res[1453].firstMatch("X"), 4477);
-  assertNull(res[1453].firstMatch("** Failers "), 4478);
-  assertNull(res[1453].firstMatch("x{30f}"), 4479);
-  assertNull(res[1454].firstMatch("X"), 4480);
-  assertNull(res[1454].firstMatch("** Failers "), 4481);
-  assertNull(res[1454].firstMatch("x{660}"), 4482);
-  assertNull(res[1455].firstMatch("X"), 4483);
-  assertNull(res[1455].firstMatch("** Failers "), 4484);
-  assertNull(res[1455].firstMatch("x{66c}"), 4485);
-  assertNull(res[1456].firstMatch("X"), 4486);
-  assertNull(res[1456].firstMatch("** Failers "), 4487);
-  assertNull(res[1456].firstMatch("x{f01}"), 4488);
-  assertNull(res[1457].firstMatch("X"), 4489);
-  assertNull(res[1457].firstMatch("** Failers "), 4490);
-  assertNull(res[1457].firstMatch("x{1680}"), 4491);
-  assertNull(res[1458].firstMatch("x{017}"), 4492);
-  assertNull(res[1458].firstMatch("x{09f} "), 4493);
-  assertNull(res[1458].firstMatch("** Failers"), 4494);
-  assertNull(res[1458].firstMatch("x{0600} "), 4495);
-  assertNull(res[1459].firstMatch("x{601}"), 4496);
-  assertNull(res[1459].firstMatch("** Failers"), 4497);
-  assertNull(res[1459].firstMatch("x{09f} "), 4498);
-  assertNull(res[1460].firstMatch("** Failers"), 4499);
-  assertNull(res[1460].firstMatch("x{09f} "), 4500);
-  assertNull(res[1461].firstMatch("x{f8ff}"), 4501);
-  assertNull(res[1461].firstMatch("** Failers"), 4502);
-  assertNull(res[1461].firstMatch("x{09f} "), 4503);
-  assertNull(res[1462].firstMatch("?x{dfff}"), 4504);
-  assertNull(res[1462].firstMatch("** Failers"), 4505);
-  assertNull(res[1462].firstMatch("x{09f} "), 4506);
-  assertNull(res[1463].firstMatch("a"), 4507);
-  assertNull(res[1463].firstMatch("** Failers "), 4508);
-  assertNull(res[1463].firstMatch("Z"), 4509);
-  assertNull(res[1463].firstMatch("x{e000}  "), 4510);
-  assertNull(res[1464].firstMatch("x{2b0}"), 4511);
-  assertNull(res[1464].firstMatch("** Failers"), 4512);
-  assertNull(res[1464].firstMatch("a "), 4513);
-  assertNull(res[1465].firstMatch("x{1bb}"), 4514);
-  assertNull(res[1465].firstMatch("** Failers"), 4515);
-  assertNull(res[1465].firstMatch("a "), 4516);
-  assertNull(res[1465].firstMatch("x{2b0}"), 4517);
-  assertNull(res[1466].firstMatch("x{1c5}"), 4518);
-  assertNull(res[1466].firstMatch("** Failers"), 4519);
-  assertNull(res[1466].firstMatch("a "), 4520);
-  assertNull(res[1466].firstMatch("x{2b0}"), 4521);
-  assertNull(res[1467].firstMatch("A"), 4522);
-  assertNull(res[1467].firstMatch("** Failers"), 4523);
-  assertNull(res[1467].firstMatch("x{2b0}"), 4524);
-  assertNull(res[1468].firstMatch("x{903}"), 4525);
-  assertNull(res[1468].firstMatch("** Failers"), 4526);
-  assertNull(res[1468].firstMatch("X"), 4527);
-  assertNull(res[1468].firstMatch("x{300}"), 4528);
-  assertNull(res[1468].firstMatch("   "), 4529);
-  assertNull(res[1469].firstMatch("x{488}"), 4530);
-  assertNull(res[1469].firstMatch("** Failers"), 4531);
-  assertNull(res[1469].firstMatch("X"), 4532);
-  assertNull(res[1469].firstMatch("x{903}"), 4533);
-  assertNull(res[1469].firstMatch("x{300}"), 4534);
-  assertNull(res[1470].firstMatch("x{300}"), 4535);
-  assertNull(res[1470].firstMatch("** Failers"), 4536);
-  assertNull(res[1470].firstMatch("X"), 4537);
-  assertNull(res[1470].firstMatch("x{903}"), 4538);
-  assertNull(
-      res[1470].firstMatch(
-          "0123456789x{660}x{661}x{662}x{663}x{664}x{665}x{666}x{667}x{668}x{669}x{66a}"),
-      4539);
-  assertNull(
-      res[1470].firstMatch(
-          "x{6f0}x{6f1}x{6f2}x{6f3}x{6f4}x{6f5}x{6f6}x{6f7}x{6f8}x{6f9}x{6fa}"),
-      4540);
-  assertNull(
-      res[1470].firstMatch(
-          "x{966}x{967}x{968}x{969}x{96a}x{96b}x{96c}x{96d}x{96e}x{96f}x{970}"),
-      4541);
-  assertNull(res[1470].firstMatch("** Failers"), 4542);
-  assertNull(res[1470].firstMatch("X"), 4543);
-  assertNull(res[1471].firstMatch("x{16ee}"), 4544);
-  assertNull(res[1471].firstMatch("** Failers"), 4545);
-  assertNull(res[1471].firstMatch("X"), 4546);
-  assertNull(res[1471].firstMatch("x{966}"), 4547);
-  assertNull(res[1472].firstMatch("x{b2}"), 4548);
-  assertNull(res[1472].firstMatch("x{b3}"), 4549);
-  assertNull(res[1472].firstMatch("** Failers"), 4550);
-  assertNull(res[1472].firstMatch("X"), 4551);
-  assertNull(res[1472].firstMatch("x{16ee}"), 4552);
-  assertNull(res[1473].firstMatch("_"), 4553);
-  assertNull(res[1473].firstMatch("x{203f}"), 4554);
-  assertNull(res[1473].firstMatch("** Failers"), 4555);
-  assertNull(res[1473].firstMatch("X"), 4556);
-  assertNull(res[1473].firstMatch("-"), 4557);
-  assertNull(res[1473].firstMatch("x{58a}"), 4558);
-  assertNull(res[1474].firstMatch("-"), 4559);
-  assertNull(res[1474].firstMatch("x{58a}"), 4560);
-  assertNull(res[1474].firstMatch("** Failers"), 4561);
-  assertNull(res[1474].firstMatch("X"), 4562);
-  assertNull(res[1474].firstMatch("x{203f}"), 4563);
-  assertNull(res[1475].firstMatch(")"), 4564);
-  assertNull(res[1475].firstMatch("]"), 4565);
-  assertNull(res[1475].firstMatch("}"), 4566);
-  assertNull(res[1475].firstMatch("x{f3b}"), 4567);
-  assertNull(res[1475].firstMatch("** Failers"), 4568);
-  assertNull(res[1475].firstMatch("X"), 4569);
-  assertNull(res[1475].firstMatch("x{203f}"), 4570);
-  assertNull(res[1475].firstMatch("("), 4571);
-  assertNull(res[1475].firstMatch("["), 4572);
-  assertNull(res[1475].firstMatch("{"), 4573);
-  assertNull(res[1475].firstMatch("x{f3c}"), 4574);
-  assertNull(res[1476].firstMatch("x{bb}"), 4575);
-  assertNull(res[1476].firstMatch("x{2019}"), 4576);
-  assertNull(res[1476].firstMatch("** Failers"), 4577);
-  assertNull(res[1476].firstMatch("X"), 4578);
-  assertNull(res[1476].firstMatch("x{203f}"), 4579);
-  assertNull(res[1477].firstMatch("x{ab}"), 4580);
-  assertNull(res[1477].firstMatch("x{2018}"), 4581);
-  assertNull(res[1477].firstMatch("** Failers"), 4582);
-  assertNull(res[1477].firstMatch("X"), 4583);
-  assertNull(res[1477].firstMatch("x{203f}"), 4584);
-  assertNull(res[1478].firstMatch("!"), 4585);
-  assertNull(res[1478].firstMatch("x{37e}"), 4586);
-  assertNull(res[1478].firstMatch("** Failers"), 4587);
-  assertNull(res[1478].firstMatch("X"), 4588);
-  assertNull(res[1478].firstMatch("x{203f}"), 4589);
-  assertNull(res[1479].firstMatch("("), 4590);
-  assertNull(res[1479].firstMatch("["), 4591);
-  assertNull(res[1479].firstMatch("{"), 4592);
-  assertNull(res[1479].firstMatch("x{f3c}"), 4593);
-  assertNull(res[1479].firstMatch("** Failers"), 4594);
-  assertNull(res[1479].firstMatch("X"), 4595);
-  assertNull(res[1479].firstMatch(")"), 4596);
-  assertNull(res[1479].firstMatch("]"), 4597);
-  assertNull(res[1479].firstMatch("}"), 4598);
-  assertNull(res[1479].firstMatch("x{f3b}"), 4599);
-  assertNull(res[1479].firstMatch("\$x{a2}x{a3}x{a4}x{a5}x{a6}"), 4600);
-  assertNull(res[1479].firstMatch("x{9f2}"), 4601);
-  assertNull(res[1479].firstMatch("** Failers"), 4602);
-  assertNull(res[1479].firstMatch("X"), 4603);
-  assertNull(res[1479].firstMatch("x{2c2}"), 4604);
-  assertNull(res[1480].firstMatch("x{2c2}"), 4605);
-  assertNull(res[1480].firstMatch("** Failers"), 4606);
-  assertNull(res[1480].firstMatch("X"), 4607);
-  assertNull(res[1480].firstMatch("x{9f2}"), 4608);
-  assertNull(res[1480].firstMatch("+<|~x{ac}x{2044}"), 4609);
-  assertNull(res[1480].firstMatch("** Failers"), 4610);
-  assertNull(res[1480].firstMatch("X"), 4611);
-  assertNull(res[1480].firstMatch("x{9f2}"), 4612);
-  assertNull(res[1481].firstMatch("x{a6}"), 4613);
-  assertNull(res[1481].firstMatch("x{482} "), 4614);
-  assertNull(res[1481].firstMatch("** Failers"), 4615);
-  assertNull(res[1481].firstMatch("X"), 4616);
-  assertNull(res[1481].firstMatch("x{9f2}"), 4617);
-  assertNull(res[1482].firstMatch("x{2028}"), 4618);
-  assertNull(res[1482].firstMatch("** Failers"), 4619);
-  assertNull(res[1482].firstMatch("X"), 4620);
-  assertNull(res[1482].firstMatch("x{2029}"), 4621);
-  assertNull(res[1483].firstMatch("x{2029}"), 4622);
-  assertNull(res[1483].firstMatch("** Failers"), 4623);
-  assertNull(res[1483].firstMatch("X"), 4624);
-  assertNull(res[1483].firstMatch("x{2028}"), 4625);
-  assertNull(res[1484].firstMatch("\\ \\"), 4626);
-  assertNull(res[1484].firstMatch("x{a0}"), 4627);
-  assertNull(res[1484].firstMatch("x{1680}"), 4628);
-  assertNull(res[1484].firstMatch("x{180e}"), 4629);
-  assertNull(res[1484].firstMatch("x{2000}"), 4630);
-  assertNull(res[1484].firstMatch("x{2001}     "), 4631);
-  assertNull(res[1484].firstMatch("** Failers"), 4632);
-  assertNull(res[1484].firstMatch("x{2028}"), 4633);
-  assertNull(res[1484].firstMatch("x{200d} "), 4634);
-  assertNull(res[1484].firstMatch("  x{660}x{661}x{662}ABC"), 4635);
-  assertNull(res[1484].firstMatch("  x{660}x{661}x{662}ABC"), 4636);
-  assertNull(res[1485].firstMatch("  x{660}x{661}x{662}ABC"), 4637);
-  assertNull(res[1486].firstMatch("  x{660}x{661}x{662}ABC"), 4638);
-  assertNull(res[1487].firstMatch("  x{660}x{661}x{662}ABC"), 4639);
-  assertNull(res[1488].firstMatch("  x{660}x{661}x{662}ABC"), 4640);
-  assertNull(res[1489].firstMatch("  x{660}x{661}x{662}ABC"), 4641);
-  assertNull(res[1490].firstMatch("  x{660}x{661}x{662}ABC"), 4642);
-  assertNull(res[1491].firstMatch("  x{660}x{661}x{662}ABC"), 4643);
-  assertNull(res[1492].firstMatch("  x{660}x{661}x{662}ABC"), 4644);
-  assertNull(res[1493].firstMatch("  x{660}x{661}x{662}ABC"), 4645);
-  assertNull(res[1493].firstMatch("  x{660}x{661}x{662}ABC"), 4646);
-  assertNull(res[1493].firstMatch("  x{660}x{661}x{662}ABC"), 4647);
-  assertNull(res[1493].firstMatch("  ** Failers"), 4648);
-  assertNull(res[1493].firstMatch("  x{660}x{661}x{662}ABC"), 4649);
-  assertNull(res[1494].firstMatch("A"), 4650);
-  assertNull(res[1494].firstMatch("ax{10a0}B "), 4651);
-  assertNull(res[1494].firstMatch("** Failers "), 4652);
-  assertNull(res[1494].firstMatch("a"), 4653);
-  assertNull(res[1494].firstMatch("x{1d00}  "), 4654);
-  assertNull(res[1495].firstMatch("1234"), 4655);
-  assertNull(res[1495].firstMatch("** Failers"), 4656);
-  assertNull(res[1495].firstMatch("ABC "), 4657);
-  assertNull(res[1496].firstMatch("1234"), 4658);
-  assertNull(res[1496].firstMatch("** Failers"), 4659);
-  assertNull(res[1496].firstMatch("ABC "), 4660);
-  assertNull(res[1496].firstMatch("A2XYZ"), 4661);
-  assertNull(res[1496].firstMatch("123A5XYZPQR"), 4662);
-  assertNull(res[1496].firstMatch("ABAx{660}XYZpqr"), 4663);
-  assertNull(res[1496].firstMatch("** Failers"), 4664);
-  assertNull(res[1496].firstMatch("AXYZ"), 4665);
-  assertNull(res[1496].firstMatch("XYZ     "), 4666);
-  assertNull(res[1496].firstMatch("1XYZ"), 4667);
-  assertNull(res[1496].firstMatch("AB=XYZ.. "), 4668);
-  assertNull(res[1496].firstMatch("XYZ "), 4669);
-  assertNull(res[1496].firstMatch("** Failers"), 4670);
-  assertNull(res[1496].firstMatch("WXYZ "), 4671);
-  assertNull(res[1497].firstMatch("1234"), 4672);
-  assertNull(res[1497].firstMatch("1234"), 4673);
-  assertNull(res[1497].firstMatch("12-34"), 4674);
-  assertToStringEquals("{", res[1497].firstMatch("12+x{661}-34  "), 4675);
-  assertNull(res[1497].firstMatch("** Failers"), 4676);
-  assertToStringEquals("d", res[1497].firstMatch("abcd  "), 4677);
-  assertToStringEquals("d", res[1498].firstMatch("abcd"), 4678);
-  assertNull(res[1498].firstMatch("** Failers"), 4679);
-  assertNull(res[1498].firstMatch("1234"), 4680);
-  assertNull(
-      res[1499].firstMatch(
-          "11111111111111111111111111111111111111111111111111111111111111111111111"),
-      4681);
-  assertToStringEquals(
-      "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
-      res[1499].firstMatch(
-          "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"),
-      4682);
-  assertToStringEquals(" ", res[1499].firstMatch(" "), 4683);
-  assertNull(
-      res[1499].firstMatch(
-          "11111111111111111111111111111111111111111111111111111111111111111111111"),
-      4684);
-  assertToStringEquals(
-      "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
-      res[1499].firstMatch(
-          "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"),
-      4685);
-  assertNull(
-      res[1500].firstMatch(
-          "11111111111111111111111111111111111111111111111111111111111111111111111"),
-      4686);
-  assertToStringEquals(
-      "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
-      res[1500].firstMatch(
-          "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"),
-      4687);
-  assertNull(
-      res[1501].firstMatch(
-          "11111111111111111111111111111111111111111111111111111111111111111111111"),
-      4688);
-  assertNull(
-      res[1501].firstMatch(
-          "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"),
-      4689);
-  assertNull(
-      res[1502].firstMatch(
-          "11111111111111111111111111111111111111111111111111111111111111111111111"),
-      4690);
-  assertToStringEquals(
-      "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
-      res[1502].firstMatch(
-          "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"),
-      4691);
-  assertNull(res[1503].firstMatch("a"), 4692);
-  assertNull(res[1503].firstMatch("A "), 4693);
-  assertNull(res[1504].firstMatch("a"), 4694);
-  assertNull(res[1504].firstMatch("A "), 4695);
-  assertNull(res[1505].firstMatch("A"), 4696);
-  assertNull(res[1505].firstMatch("aZ"), 4697);
-  assertNull(res[1505].firstMatch("** Failers"), 4698);
-  assertNull(res[1505].firstMatch("abc   "), 4699);
-  assertNull(res[1506].firstMatch("A"), 4700);
-  assertNull(res[1506].firstMatch("aZ"), 4701);
-  assertNull(res[1506].firstMatch("** Failers"), 4702);
-  assertNull(res[1506].firstMatch("abc   "), 4703);
-  assertNull(res[1507].firstMatch("a"), 4704);
-  assertNull(res[1507].firstMatch("Az"), 4705);
-  assertNull(res[1507].firstMatch("** Failers"), 4706);
-  assertNull(res[1507].firstMatch("ABC   "), 4707);
-  assertNull(res[1508].firstMatch("a"), 4708);
-  assertNull(res[1508].firstMatch("Az"), 4709);
-  assertNull(res[1508].firstMatch("** Failers"), 4710);
-  assertNull(res[1508].firstMatch("ABC   "), 4711);
-  assertNull(res[1508].firstMatch("x{c0}"), 4712);
-  assertNull(res[1508].firstMatch("x{e0} "), 4713);
-  assertNull(res[1508].firstMatch("x{c0}"), 4714);
-  assertNull(res[1508].firstMatch("x{e0} "), 4715);
-  assertNull(res[1508].firstMatch("Ax{391}x{10427}x{ff3a}x{1fb0}"), 4716);
-  assertNull(res[1508].firstMatch("** Failers"), 4717);
-  assertNull(res[1508].firstMatch("ax{391}x{10427}x{ff3a}x{1fb0}   "), 4718);
-  assertNull(res[1508].firstMatch("Ax{3b1}x{10427}x{ff3a}x{1fb0}"), 4719);
-  assertNull(res[1508].firstMatch("Ax{391}x{1044F}x{ff3a}x{1fb0}"), 4720);
-  assertNull(res[1508].firstMatch("Ax{391}x{10427}x{ff5a}x{1fb0}"), 4721);
-  assertNull(res[1508].firstMatch("Ax{391}x{10427}x{ff3a}x{1fb8}"), 4722);
-  assertNull(res[1508].firstMatch("Ax{391}x{10427}x{ff3a}x{1fb0}"), 4723);
-  assertNull(res[1508].firstMatch("ax{391}x{10427}x{ff3a}x{1fb0}   "), 4724);
-  assertNull(res[1508].firstMatch("Ax{3b1}x{10427}x{ff3a}x{1fb0}"), 4725);
-  assertNull(res[1508].firstMatch("Ax{391}x{1044F}x{ff3a}x{1fb0}"), 4726);
-  assertNull(res[1508].firstMatch("Ax{391}x{10427}x{ff5a}x{1fb0}"), 4727);
-  assertNull(res[1508].firstMatch("Ax{391}x{10427}x{ff3a}x{1fb8}"), 4728);
-  assertNull(res[1508].firstMatch("x{391}x{3b1}x{3b1}x{3b1}x{391}"), 4729);
-  assertNull(res[1508].firstMatch("x{391}x{3b1}x{3b1}x{3b1}x{391}X"), 4730);
-  assertNull(res[1508].firstMatch("x{391}x{3b1}x{3b1}x{3b1}x{391}X"), 4731);
-  assertNull(res[1508].firstMatch("x{391}"), 4732);
-  assertNull(res[1508].firstMatch("x{ff3a}"), 4733);
-  assertNull(res[1508].firstMatch("x{3b1}"), 4734);
-  assertNull(res[1508].firstMatch("x{ff5a}   "), 4735);
-  assertNull(res[1508].firstMatch("x{c0}"), 4736);
-  assertNull(res[1508].firstMatch("x{e0} "), 4737);
-  assertNull(res[1508].firstMatch("x{104}"), 4738);
-  assertNull(res[1508].firstMatch("x{105}"), 4739);
-  assertNull(res[1508].firstMatch("x{109}  "), 4740);
-  assertNull(res[1508].firstMatch("** Failers"), 4741);
-  assertNull(res[1508].firstMatch("x{100}"), 4742);
-  assertNull(res[1508].firstMatch("x{10a} "), 4743);
-  assertNull(res[1508].firstMatch("Z"), 4744);
-  assertNull(res[1508].firstMatch("z"), 4745);
-  assertNull(res[1508].firstMatch("x{39c}"), 4746);
-  assertNull(res[1508].firstMatch("x{178}"), 4747);
-  assertNull(res[1508].firstMatch("|"), 4748);
-  assertNull(res[1508].firstMatch("x{80}"), 4749);
-  assertNull(res[1508].firstMatch("x{ff}"), 4750);
-  assertNull(res[1508].firstMatch("x{100}"), 4751);
-  assertNull(res[1508].firstMatch("x{101} "), 4752);
-  assertNull(res[1508].firstMatch("** Failers"), 4753);
-  assertNull(res[1508].firstMatch("x{102}"), 4754);
-  assertNull(res[1508].firstMatch("Y"), 4755);
-  assertNull(res[1508].firstMatch("y           "), 4756);
-  assertNull(res[1509].firstMatch("A"), 4757);
-  assertNull(res[1509].firstMatch("Ax{300}BC "), 4758);
-  assertNull(res[1509].firstMatch("Ax{300}x{301}x{302}BC "), 4759);
-  assertNull(res[1509].firstMatch("*** Failers"), 4760);
-  assertNull(res[1509].firstMatch("x{300}  "), 4761);
-  assertToStringEquals("X", res[1510].firstMatch("X123"), 4762);
-  assertNull(res[1510].firstMatch("*** Failers"), 4763);
-  assertNull(res[1510].firstMatch("AXYZ"), 4764);
-  assertNull(res[1511].firstMatch("Ax{300}x{301}x{302}BCAx{300}x{301} "), 4765);
-  assertNull(
-      res[1511].firstMatch("Ax{300}x{301}x{302}BCAx{300}x{301}C "), 4766);
-  assertNull(res[1512].firstMatch("Ax{300}x{301}x{302}BCAx{300}x{301} "), 4767);
-  assertNull(
-      res[1512].firstMatch("Ax{300}x{301}x{302}BCAx{300}x{301}C "), 4768);
-  assertToStringEquals("A,,A",
-      res[1513].firstMatch("Ax{300}x{301}x{302}BCAx{300}x{301} "), 4769);
-  assertToStringEquals("A,,A",
-      res[1513].firstMatch("Ax{300}x{301}x{302}BCAx{300}x{301}C "), 4770);
-  assertToStringEquals("A,,A",
-      res[1514].firstMatch("Ax{300}x{301}x{302}BCAx{300}x{301} "), 4771);
-  assertToStringEquals("A,,A",
-      res[1514].firstMatch("Ax{300}x{301}x{302}BCAx{300}x{301}C "), 4772);
-  assertNull(res[1515].firstMatch("*** Failers"), 4773);
-  assertNull(res[1515].firstMatch("Ax{300}x{301}x{302}"), 4774);
-  assertNull(res[1516].firstMatch("Ax{300}x{301}Bx{300}X"), 4775);
-  assertNull(res[1516].firstMatch("Ax{300}x{301}Bx{300}Cx{300}x{301}"), 4776);
-  assertNull(res[1516].firstMatch("Ax{300}x{301}Bx{300}Cx{300}x{301}X"), 4777);
-  assertNull(
-      res[1516].firstMatch("Ax{300}x{301}Bx{300}Cx{300}x{301}DAx{300}X"), 4778);
-  assertNull(res[1517].firstMatch("Ax{300}x{301}Bx{300}X"), 4779);
-  assertNull(res[1517].firstMatch("Ax{300}x{301}Bx{300}Cx{300}x{301}"), 4780);
-  assertNull(res[1517].firstMatch("Ax{300}x{301}Bx{300}Cx{300}x{301}X"), 4781);
-  assertNull(
-      res[1517].firstMatch("Ax{300}x{301}Bx{300}Cx{300}x{301}DAx{300}X"), 4782);
-  assertNull(res[1518].firstMatch("12X"), 4783);
-  assertNull(res[1518].firstMatch("123X"), 4784);
-  assertNull(res[1518].firstMatch("*** Failers"), 4785);
-  assertNull(res[1518].firstMatch("X"), 4786);
-  assertNull(res[1518].firstMatch("1X"), 4787);
-  assertNull(res[1518].firstMatch("1234X     "), 4788);
-  assertNull(res[1518].firstMatch("x{100}   "), 4789);
-  assertNull(res[1518].firstMatch("x{101} "), 4790);
-  assertNull(res[1518].firstMatch("x{2e81}x{3007}x{2f804}x{31a0}"), 4791);
-  assertNull(res[1518].firstMatch("** Failers"), 4792);
-  assertNull(res[1518].firstMatch("x{2e7f}  "), 4793);
-  assertNull(res[1518].firstMatch("x{3105}"), 4794);
-  assertNull(res[1518].firstMatch("** Failers"), 4795);
-  assertNull(res[1518].firstMatch("x{30ff}  "), 4796);
-  assertNull(res[1519].firstMatch("x{06e9}"), 4797);
-  assertNull(res[1519].firstMatch("x{060b}"), 4798);
-  assertNull(res[1519].firstMatch("** Failers"), 4799);
-  assertNull(res[1519].firstMatch("Xx{06e9}   "), 4800);
-  assertNull(res[1520].firstMatch("x{2f800}"), 4801);
-  assertNull(res[1520].firstMatch("** Failers"), 4802);
-  assertNull(res[1520].firstMatch("x{a014}"), 4803);
-  assertNull(res[1520].firstMatch("x{a4c6}   "), 4804);
-  assertNull(res[1521].firstMatch("AXYZ"), 4805);
-  assertNull(res[1521].firstMatch("x{1234}XYZ "), 4806);
-  assertNull(res[1521].firstMatch("** Failers"), 4807);
-  assertNull(res[1521].firstMatch("X  "), 4808);
-  assertNull(res[1522].firstMatch("** Failers"), 4809);
-  assertNull(res[1522].firstMatch("AX"), 4810);
-  assertNull(res[1523].firstMatch("XYZ"), 4811);
-  assertNull(res[1523].firstMatch("AXYZ"), 4812);
-  assertNull(res[1523].firstMatch("x{1234}XYZ "), 4813);
-  assertNull(res[1523].firstMatch("** Failers"), 4814);
-  assertNull(res[1523].firstMatch("ABXYZ   "), 4815);
-  assertNull(res[1524].firstMatch("XYZ"), 4816);
-  assertNull(res[1524].firstMatch("** Failers"), 4817);
-  assertNull(res[1524].firstMatch("AXYZ"), 4818);
-  assertNull(res[1524].firstMatch("x{1234}XYZ "), 4819);
-  assertNull(res[1524].firstMatch("ABXYZ   "), 4820);
-  assertNull(res[1524].firstMatch("AXYZ"), 4821);
-  assertNull(res[1524].firstMatch("x{1234}XYZ"), 4822);
-  assertNull(res[1524].firstMatch("Ax{1234}XYZ"), 4823);
-  assertNull(res[1524].firstMatch("** Failers"), 4824);
-  assertNull(res[1524].firstMatch("XYZ"), 4825);
-  assertNull(res[1524].firstMatch("** Failers"), 4826);
-  assertNull(res[1524].firstMatch("AXYZ"), 4827);
-  assertNull(res[1524].firstMatch("x{1234}XYZ"), 4828);
-  assertNull(res[1524].firstMatch("Ax{1234}XYZ"), 4829);
-  assertNull(res[1524].firstMatch("XYZ"), 4830);
-  assertNull(res[1525].firstMatch("XYZ"), 4831);
-  assertNull(res[1525].firstMatch("AXYZ"), 4832);
-  assertNull(res[1525].firstMatch("x{1234}XYZ"), 4833);
-  assertNull(res[1525].firstMatch("Ax{1234}XYZ"), 4834);
-  assertNull(res[1525].firstMatch("** Failers"), 4835);
-  assertNull(res[1526].firstMatch("XYZ"), 4836);
-  assertNull(res[1526].firstMatch("** Failers"), 4837);
-  assertNull(res[1526].firstMatch("AXYZ"), 4838);
-  assertNull(res[1526].firstMatch("x{1234}XYZ"), 4839);
-  assertNull(res[1526].firstMatch("Ax{1234}XYZ"), 4840);
-  assertToStringEquals("AX", res[1527].firstMatch("AXYZ"), 4841);
-  assertNull(res[1527].firstMatch("x{1234}XYZ "), 4842);
-  assertNull(res[1527].firstMatch("** Failers"), 4843);
-  assertNull(res[1527].firstMatch("X  "), 4844);
-  assertNull(res[1528].firstMatch("** Failers"), 4845);
-  assertToStringEquals("AX", res[1528].firstMatch("AX"), 4846);
-  assertToStringEquals("X", res[1529].firstMatch("XYZ"), 4847);
-  assertToStringEquals("AX", res[1529].firstMatch("AXYZ"), 4848);
-  assertNull(res[1529].firstMatch("x{1234}XYZ "), 4849);
-  assertNull(res[1529].firstMatch("** Failers"), 4850);
-  assertNull(res[1529].firstMatch("ABXYZ   "), 4851);
-  assertToStringEquals("X", res[1530].firstMatch("XYZ"), 4852);
-  assertNull(res[1530].firstMatch("** Failers"), 4853);
-  assertToStringEquals("AX", res[1530].firstMatch("AXYZ"), 4854);
-  assertNull(res[1530].firstMatch("x{1234}XYZ "), 4855);
-  assertNull(res[1530].firstMatch("ABXYZ   "), 4856);
-  assertToStringEquals("AX", res[1531].firstMatch("AXYZ"), 4857);
-  assertNull(res[1531].firstMatch("x{1234}XYZ"), 4858);
-  assertNull(res[1531].firstMatch("Ax{1234}XYZ"), 4859);
-  assertNull(res[1531].firstMatch("** Failers"), 4860);
-  assertNull(res[1531].firstMatch("XYZ"), 4861);
-  assertNull(res[1532].firstMatch("** Failers"), 4862);
-  assertToStringEquals("AX", res[1532].firstMatch("AXYZ"), 4863);
-  assertNull(res[1532].firstMatch("x{1234}XYZ"), 4864);
-  assertNull(res[1532].firstMatch("Ax{1234}XYZ"), 4865);
-  assertNull(res[1532].firstMatch("XYZ"), 4866);
-  assertToStringEquals("X", res[1533].firstMatch("XYZ"), 4867);
-  assertToStringEquals("AX", res[1533].firstMatch("AXYZ"), 4868);
-  assertNull(res[1533].firstMatch("x{1234}XYZ"), 4869);
-  assertNull(res[1533].firstMatch("Ax{1234}XYZ"), 4870);
-  assertNull(res[1533].firstMatch("** Failers"), 4871);
-  assertToStringEquals("X", res[1534].firstMatch("XYZ"), 4872);
-  assertNull(res[1534].firstMatch("** Failers"), 4873);
-  assertToStringEquals("AX", res[1534].firstMatch("AXYZ"), 4874);
-  assertNull(res[1534].firstMatch("x{1234}XYZ"), 4875);
-  assertNull(res[1534].firstMatch("Ax{1234}XYZ"), 4876);
-  assertNull(res[1535].firstMatch("abcdefgh"), 4877);
-  assertNull(res[1535].firstMatch("x{1234}\n\x0dx{3456}xyz "), 4878);
-  assertNull(res[1536].firstMatch("abcdefgh"), 4879);
-  assertNull(res[1536].firstMatch("x{1234}\n\x0dx{3456}xyz "), 4880);
-  assertNull(res[1537].firstMatch("** Failers"), 4881);
-  assertNull(res[1537].firstMatch("abcdefgh"), 4882);
-  assertNull(res[1537].firstMatch("x{1234}\n\x0dx{3456}xyz "), 4883);
-  assertNull(res[1538].firstMatch(" AXY"), 4884);
-  assertNull(res[1538].firstMatch(" aXY"), 4885);
-  assertNull(res[1538].firstMatch(" x{1c5}XY"), 4886);
-  assertNull(res[1538].firstMatch(" ** Failers"), 4887);
-  assertNull(res[1538].firstMatch(" x{1bb}XY"), 4888);
-  assertNull(res[1538].firstMatch(" x{2b0}XY"), 4889);
-  assertNull(res[1538].firstMatch(" !XY      "), 4890);
-  assertNull(res[1539].firstMatch(" AXY"), 4891);
-  assertNull(res[1539].firstMatch(" aXY"), 4892);
-  assertNull(res[1539].firstMatch(" x{1c5}XY"), 4893);
-  assertNull(res[1539].firstMatch(" ** Failers"), 4894);
-  assertNull(res[1539].firstMatch(" x{1bb}XY"), 4895);
-  assertNull(res[1539].firstMatch(" x{2b0}XY"), 4896);
-  assertNull(res[1539].firstMatch(" !XY      "), 4897);
-  assertNull(res[1539].firstMatch(" AXY"), 4898);
-  assertNull(res[1539].firstMatch(" aXY"), 4899);
-  assertNull(res[1539].firstMatch(" AbcdeXyz "), 4900);
-  assertNull(res[1539].firstMatch(" x{1c5}AbXY"), 4901);
-  assertNull(res[1539].firstMatch(" abcDEXypqreXlmn "), 4902);
-  assertNull(res[1539].firstMatch(" ** Failers"), 4903);
-  assertNull(res[1539].firstMatch(" x{1bb}XY"), 4904);
-  assertNull(res[1539].firstMatch(" x{2b0}XY"), 4905);
-  assertNull(res[1539].firstMatch(" !XY      "), 4906);
-  assertNull(res[1540].firstMatch(" AXY"), 4907);
-  assertNull(res[1540].firstMatch(" aXY"), 4908);
-  assertNull(res[1540].firstMatch(" AbcdeXyz "), 4909);
-  assertNull(res[1540].firstMatch(" x{1c5}AbXY"), 4910);
-  assertNull(res[1540].firstMatch(" abcDEXypqreXlmn "), 4911);
-  assertNull(res[1540].firstMatch(" ** Failers"), 4912);
-  assertNull(res[1540].firstMatch(" x{1bb}XY"), 4913);
-  assertNull(res[1540].firstMatch(" x{2b0}XY"), 4914);
-  assertNull(res[1540].firstMatch(" !XY      "), 4915);
-  assertNull(res[1540].firstMatch(" AXY"), 4916);
-  assertNull(res[1540].firstMatch(" aXY"), 4917);
-  assertNull(res[1540].firstMatch(" AbcdeXyz "), 4918);
-  assertNull(res[1540].firstMatch(" x{1c5}AbXY"), 4919);
-  assertNull(res[1540].firstMatch(" abcDEXypqreXlmn "), 4920);
-  assertNull(res[1540].firstMatch(" ** Failers"), 4921);
-  assertNull(res[1540].firstMatch(" x{1bb}XY"), 4922);
-  assertNull(res[1540].firstMatch(" x{2b0}XY"), 4923);
-  assertNull(res[1540].firstMatch(" !XY      "), 4924);
-  assertNull(res[1541].firstMatch(" AXY"), 4925);
-  assertNull(res[1541].firstMatch(" aXY"), 4926);
-  assertNull(res[1541].firstMatch(" AbcdeXyz "), 4927);
-  assertNull(res[1541].firstMatch(" x{1c5}AbXY"), 4928);
-  assertNull(res[1541].firstMatch(" abcDEXypqreXlmn "), 4929);
-  assertNull(res[1541].firstMatch(" ** Failers"), 4930);
-  assertNull(res[1541].firstMatch(" x{1bb}XY"), 4931);
-  assertNull(res[1541].firstMatch(" x{2b0}XY"), 4932);
-  assertNull(res[1541].firstMatch(" !XY      "), 4933);
-  assertNull(res[1542].firstMatch(" !XY"), 4934);
-  assertNull(res[1542].firstMatch(" x{1bb}XY"), 4935);
-  assertNull(res[1542].firstMatch(" x{2b0}XY"), 4936);
-  assertNull(res[1542].firstMatch(" ** Failers"), 4937);
-  assertNull(res[1542].firstMatch(" x{1c5}XY"), 4938);
-  assertNull(res[1542].firstMatch(" AXY      "), 4939);
-  assertNull(res[1543].firstMatch(" !XY"), 4940);
-  assertNull(res[1543].firstMatch(" x{1bb}XY"), 4941);
-  assertNull(res[1543].firstMatch(" x{2b0}XY"), 4942);
-  assertNull(res[1543].firstMatch(" ** Failers"), 4943);
-  assertNull(res[1543].firstMatch(" x{1c5}XY"), 4944);
-  assertNull(res[1543].firstMatch(" AXY      "), 4945);
-  assertNull(res[1543].firstMatch("x{c0}x{e0}x{116}x{117}"), 4946);
-  assertNull(res[1543].firstMatch("x{c0}x{e0}x{116}x{117}"), 4947);
-  assertNull(res[1545].firstMatch("123abcdefg"), 4948);
-  assertNull(res[1545].firstMatch("123abc\xc4\xc5zz"), 4949);
-  assertNull(
-      res[1546].firstMatch(
-          "x{102A4}x{AA52}x{A91D}x{1C46}x{10283}x{1092E}x{1C6B}x{A93B}x{A8BF}x{1BA0}x{A50A}===="),
-      4950);
-  assertNull(res[1546].firstMatch("x{a77d}x{1d79}"), 4951);
-  assertNull(res[1546].firstMatch("x{1d79}x{a77d} "), 4952);
-  assertNull(res[1546].firstMatch("x{a77d}x{1d79}"), 4953);
-  assertNull(res[1546].firstMatch("** Failers "), 4954);
-  assertNull(res[1546].firstMatch("x{1d79}x{a77d} "), 4955);
-  // Dart does not have RegExp literals and thus no translatation of the below.
-  // assertThrows("var re = //;", 4956);
-}
diff --git a/tests/corelib_2/regexp/quantified-assertions_test.dart b/tests/corelib_2/regexp/quantified-assertions_test.dart
deleted file mode 100644
index 6e03116c7a6..00000000000
--- a/tests/corelib_2/regexp/quantified-assertions_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description("This page tests assertions followed by quantifiers.");
-
-  var regexp;
-
-  regexp = new RegExp(r"(?=a){0}", multiLine: true);
-  shouldBeTrue(regexp.hasMatch('a'));
-
-  regexp = new RegExp(r"(?=a){1}", multiLine: true);
-  shouldBeTrue(regexp.hasMatch('a'));
-
-  regexp = new RegExp(r"(?!a){0}", multiLine: true);
-  shouldBeTrue(regexp.hasMatch('b'));
-
-  regexp = new RegExp(r"(?!a){1}", multiLine: true);
-  shouldBeTrue(regexp.hasMatch('b'));
-
-  shouldBeTrue(new RegExp(r"^(?=a)?b$").hasMatch("b"));
-}
diff --git a/tests/corelib_2/regexp/range-bound-ffff_test.dart b/tests/corelib_2/regexp/range-bound-ffff_test.dart
deleted file mode 100644
index c5136612641..00000000000
--- a/tests/corelib_2/regexp/range-bound-ffff_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description(
-      'Test for rdar:/68455379, a case-insensitive regex containing a character class containing a range with an upper bound of \uFFFF can lead to an infinite-loop.');
-
-  shouldBe(
-      firstMatch("A", new RegExp(r"[\u0001-\uFFFF]", caseSensitive: false)),
-      ["A"]);
-}
diff --git a/tests/corelib_2/regexp/range-out-of-order_test.dart b/tests/corelib_2/regexp/range-out-of-order_test.dart
deleted file mode 100644
index 06505c906a9..00000000000
--- a/tests/corelib_2/regexp/range-out-of-order_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description(
-      'Test for <a href="http://bugs.webkit.org/show_bug.cgi?id=16129">bug 16129</a>: REGRESSION (r27761-r27811): malloc error while visiting http://mysit.es (crashes release build).');
-
-  assertThrows(() => new RegExp(r"^[\s{-.\[\]\(\)]$"));
-}
diff --git a/tests/corelib_2/regexp/ranges-and-escaped-hyphens_test.dart b/tests/corelib_2/regexp/ranges-and-escaped-hyphens_test.dart
deleted file mode 100644
index b0643c22894..00000000000
--- a/tests/corelib_2/regexp/ranges-and-escaped-hyphens_test.dart
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description(
-      'Tests for bug <a href="https://bugs.webkit.org/show_bug.cgi?id=21232">#21232</a>, and related range issues described in bug.');
-
-  // Basic test for ranges - one to three and five are in regexp, four is not, and '-' should not match
-  var regexp01 = new RegExp(r"[1-35]+").firstMatch("-12354");
-  shouldBe(regexp01, ["1235"]);
-  // Tests inserting an escape character class into the above pattern - where the spaces fall within the
-  // range it is no longer a range - hyphens should now match, two should not.
-  var regexp01a = new RegExp(r"[\s1-35]+").firstMatch("-123 54");
-  shouldBe(regexp01a, ["123 5"]);
-
-  // These are invalid ranges, according to ECMA-262, but we allow them.
-  var regexp01b = new RegExp(r"[1\s-35]+").firstMatch("21-3 54");
-  shouldBe(regexp01b, ["1-3 5"]);
-  var regexp01c = new RegExp(r"[1-\s35]+").firstMatch("21-3 54");
-  shouldBe(regexp01c, ["1-3 5"]);
-
-  var regexp01d = new RegExp(r"[1-3\s5]+").firstMatch("-123 54");
-  shouldBe(regexp01d, ["123 5"]);
-  var regexp01e = new RegExp(r"[1-35\s5]+").firstMatch("-123 54");
-  shouldBe(regexp01e, ["123 5"]);
-  // hyphens are normal characters if a range is not fully specified.
-  var regexp01f = new RegExp(r"[-3]+").firstMatch("2-34");
-  shouldBe(regexp01f, ["-3"]);
-  var regexp01g = new RegExp(r"[2-]+").firstMatch("12-3");
-  shouldBe(regexp01g, ["2-"]);
-
-  // Similar to the above tests, but where the hyphen is escaped this is never a range.
-  var regexp02 = new RegExp(r"[1\-35]+").firstMatch("21-354");
-  shouldBe(regexp02, ["1-35"]);
-  // As above.
-  var regexp02a = new RegExp(r"[\s1\-35]+").firstMatch("21-3 54");
-  shouldBe(regexp02a, ["1-3 5"]);
-  var regexp02b = new RegExp(r"[1\s\-35]+").firstMatch("21-3 54");
-  shouldBe(regexp02b, ["1-3 5"]);
-  var regexp02c = new RegExp(r"[1\-\s35]+").firstMatch("21-3 54");
-  shouldBe(regexp02c, ["1-3 5"]);
-  var regexp02d = new RegExp(r"[1\-3\s5]+").firstMatch("21-3 54");
-  shouldBe(regexp02d, ["1-3 5"]);
-  var regexp02e = new RegExp(r"[1\-35\s5]+").firstMatch("21-3 54");
-  shouldBe(regexp02e, ["1-3 5"]);
-
-  // Test that an escaped hyphen can be used as a bound on a range.
-  var regexp03a = new RegExp(r"[\--0]+").firstMatch(",-.01");
-  shouldBe(regexp03a, ["-.0"]);
-  var regexp03b = new RegExp(r"[+-\-]+").firstMatch("*+,-.");
-  shouldBe(regexp03b, ["+,-"]);
-
-  // The actual bug reported.
-  var bug21232 =
-      (new RegExp(r"^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$")).hasMatch('@');
-  shouldBeFalse(bug21232);
-}
diff --git a/tests/corelib_2/regexp/regexp_escape_test.dart b/tests/corelib_2/regexp/regexp_escape_test.dart
deleted file mode 100644
index 433c6a0b649..00000000000
--- a/tests/corelib_2/regexp/regexp_escape_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var escapeChars = r"([)}{]?*+.$^|\";
-
-var nonEscapeAscii = "\x00\x01\x02\x03\x04\x05\x06\x07" //
-    "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f" //
-    "\x10\x11\x12\x13\x14\x15\x16\x17" //
-    "\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f" //
-    """ !"#%&',-/0123456789:;<=>""" //
-    """@ABCDEFGHIJKLMNOPQRSTUVWXYZ_""" //
-    """`abcdefghijklmnopqrstuvwxyz~\x7f""";
-var someNonAscii =
-    new String.fromCharCodes(new List.generate(0x1000 - 128, (x) => x + 128));
-
-test(String string, [bool shouldEscape]) {
-  var escape = RegExp.escape(string);
-  Expect.isTrue(new RegExp(escape).hasMatch(string), "$escape");
-  Expect.equals(string, new RegExp(escape).firstMatch(string)[0], "$escape");
-  if (shouldEscape == true) {
-    Expect.notEquals(string, escape);
-  } else if (shouldEscape == false) {
-    Expect.equals(string, escape);
-  }
-}
-
-main() {
-  for (var c in escapeChars.split("")) {
-    test(c, true);
-  }
-  for (var c in nonEscapeAscii.split("")) {
-    test(c, false);
-  }
-  test(escapeChars, true);
-  test(nonEscapeAscii, false);
-  test(someNonAscii, false);
-  test((nonEscapeAscii + escapeChars) * 3, true);
-  test(r'.abc', true); // First only.
-  test(r'abc.', true); // Last only.
-}
diff --git a/tests/corelib_2/regexp/regexp_kde_test.dart b/tests/corelib_2/regexp/regexp_kde_test.dart
deleted file mode 100644
index 8ed8f61a36d..00000000000
--- a/tests/corelib_2/regexp/regexp_kde_test.dart
+++ /dev/null
@@ -1,120 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description("KDE JS Test");
-
-  var ri = new RegExp(r"a", caseSensitive: false);
-  var rm = new RegExp(r"a", multiLine: true);
-  var rg = new RegExp(r"a");
-
-  shouldBe(new RegExp(r"(b)c").firstMatch('abcd'), ["bc", "b"]);
-
-  shouldBe(firstMatch('abcdefghi', new RegExp(r"(abc)def(ghi)")),
-      ['abcdefghi', 'abc', 'ghi']);
-  shouldBe(new RegExp(r"(abc)def(ghi)").firstMatch('abcdefghi'),
-      ['abcdefghi', 'abc', 'ghi']);
-
-  shouldBe(firstMatch('abcdefghi', new RegExp(r"(a(b(c(d(e)f)g)h)i)")),
-      ['abcdefghi', 'abcdefghi', 'bcdefgh', 'cdefg', 'def', 'e']);
-
-  shouldBe(
-      firstMatch('(100px 200px 150px 15px)',
-          new RegExp(r"\((\d+)(px)* (\d+)(px)* (\d+)(px)* (\d+)(px)*\)")),
-      [
-        '(100px 200px 150px 15px)',
-        '100',
-        'px',
-        '200',
-        'px',
-        '150',
-        'px',
-        '15',
-        'px'
-      ]);
-  shouldBeNull(firstMatch(
-      '', new RegExp(r"\((\d+)(px)* (\d+)(px)* (\d+)(px)* (\d+)(px)*\)")));
-
-  var invalidChars = new RegExp(r"[^@\.\w]"); // #47092
-  shouldBeTrue(firstMatch('faure@kde.org', invalidChars) == null);
-  shouldBeFalse(firstMatch('faure-kde@kde.org', invalidChars) == null);
-
-  assertEquals('test1test2'.replaceAll('test', 'X'), 'X1X2');
-  assertEquals('test1test2'.replaceAll(new RegExp(r"\d"), 'X'), 'testXtestX');
-  assertEquals('1test2test3'.replaceAll(new RegExp(r"\d"), ''), 'testtest');
-  assertEquals('test1test2'.replaceAll(new RegExp(r"test"), 'X'), 'X1X2');
-  assertEquals('1test2test3'.replaceAll(new RegExp(r"\d"), ''), 'testtest');
-  assertEquals('1test2test3'.replaceAll(new RegExp(r"x"), ''), '1test2test3');
-  assertEquals(
-      'test1test2'.replaceAllMapped(
-          new RegExp(r"(te)(st)"), (m) => "${m.group(2)}${m.group(1)}"),
-      'stte1stte2');
-  assertEquals('foo+bar'.replaceAll(new RegExp(r"\+"), '%2B'), 'foo%2Bbar');
-  var caught = false;
-  try {
-    new RegExp("+");
-  } catch (e) {
-    caught = true;
-  }
-  shouldBeTrue(caught); // #40435
-  assertEquals('foo'.replaceAll(new RegExp(r"z?"), 'x'), 'xfxoxox');
-  assertEquals(
-      'test test'.replaceAll(new RegExp(r"\s*"), ''), 'testtest'); // #50985
-  assertEquals(
-      'abc\$%@'.replaceAll(new RegExp(r"[^0-9a-z]*", caseSensitive: false), ''),
-      'abc'); // #50848
-  assertEquals(
-      'ab'.replaceAll(new RegExp(r"[^\d\.]*", caseSensitive: false), ''),
-      ''); // #75292
-  assertEquals(
-      '1ab'.replaceAll(new RegExp(r"[^\d\.]*", caseSensitive: false), ''),
-      '1'); // #75292
-
-  Expect.listEquals(
-      '1test2test3blah'.split(new RegExp(r"test")), ['1', '2', '3blah']);
-  var reg = new RegExp(r"(\d\d )");
-  var str = '98 76 blah';
-  shouldBe(reg.firstMatch(str), ['98 ', '98 ']);
-
-  str = "For more information, see Chapter 3.4.5.1";
-  var re = new RegExp(r"(chapter \d+(\.\d)*)", caseSensitive: false);
-  // This returns the array containing Chapter 3.4.5.1,Chapter 3.4.5.1,.1
-  // 'Chapter 3.4.5.1' is the first match and the first value remembered from (Chapter \d+(\.\d)*).
-  // '.1' is the second value remembered from (\.\d)
-  shouldBe(firstMatch(str, re), ['Chapter 3.4.5.1', 'Chapter 3.4.5.1', '.1']);
-
-  str = "abcDdcba";
-  // The returned array contains D, d.
-  re = new RegExp(r"d", caseSensitive: false);
-  var matches = re.allMatches(str);
-  Expect.listEquals(matches.map((m) => m.group(0)).toList(), ['D', 'd']);
-
-  // unicode escape sequence
-  shouldBe(firstMatch('abc', new RegExp(r"\u0062")), ['b']);
-}
diff --git a/tests/corelib_2/regexp/regexp_regress_52182_test.dart b/tests/corelib_2/regexp/regexp_regress_52182_test.dart
deleted file mode 100644
index c06b3c1cbe8..00000000000
--- a/tests/corelib_2/regexp/regexp_regress_52182_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Regression test for https://github.com/dart-lang/sdk/issues/52182
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  // https://github.com/dart-lang/sdk/issues/52182
-  Expect.isTrue(RegExp(r'a[^x]b', unicode: true).hasMatch('a\uD800\uDD01b'));
-}
diff --git a/tests/corelib_2/regexp/regexp_regression_39406_test.dart b/tests/corelib_2/regexp/regexp_regression_39406_test.dart
deleted file mode 100644
index 6c4bd0dbbb3..00000000000
--- a/tests/corelib_2/regexp/regexp_regression_39406_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// See http://dartbug.com/39406
-//
-// The following code must not throw.
-
-void main() {
-  var regExp = RegExp(r'\w+');
-  var message = 'Hello world!';
-  var match = regExp.firstMatch(message);
-  var groupNames = match.groupNames.toList();
-  Expect.listEquals([], groupNames);
-  Expect.throwsArgumentError(() => match.namedGroup("x"));
-}
diff --git a/tests/corelib_2/regexp/regexp_test.dart b/tests/corelib_2/regexp/regexp_test.dart
deleted file mode 100644
index b564235852e..00000000000
--- a/tests/corelib_2/regexp/regexp_test.dart
+++ /dev/null
@@ -1,626 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2012 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void testEscape(str, regexp) {
-  assertEquals("foo:bar:baz", str.split(regexp).join(":"));
-}
-
-void assertEquals(actual, expected, [message]) =>
-    Expect.equals(actual, expected, message);
-void assertTrue(actual, [message]) => Expect.isTrue(actual, message);
-void assertFalse(actual, [message]) => Expect.isFalse(actual, message);
-void assertThrows(fn) => Expect.throws(fn);
-
-void main() {
-  testEscape("foo\nbar\nbaz", new RegExp(r"\n"));
-  testEscape("foo bar baz", new RegExp(r"\s"));
-  testEscape("foo\tbar\tbaz", new RegExp(r"\s"));
-  testEscape("foo-bar-baz", new RegExp(r"\u002D"));
-
-  // Test containing null char in regexp.
-  var s = '[' + new String.fromCharCode(0) + ']';
-  var regexp = new RegExp(s);
-  assertEquals(regexp.allMatches(s).length, 1);
-  assertEquals(regexp.stringMatch(s), new String.fromCharCode(0));
-
-  final _vmFrame = new RegExp(r'^#\d+\s+(\S.*) \((.+?):(\d+)(?::(\d+))?\)$');
-  final _traceLine =
-      "#0      Trace.Trace.parse (package:stack_trace/src/trace.dart:130:7)";
-  Expect.equals(_vmFrame.firstMatch(_traceLine).group(0), _traceLine);
-
-  // Test the UTF16 case insensitive comparison.
-  regexp = new RegExp(r"x(a)\1x", caseSensitive: false);
-  Expect.equals(regexp.firstMatch("xaAx\u1234").group(0), "xaAx");
-
-  // Test strings containing all line separators
-  s = 'aA\nbB\rcC\r\ndD\u2028eE\u2029fF';
-  // any non-newline character at the beginning of a line
-  regexp = new RegExp(r"^.", multiLine: true);
-  var result = regexp.allMatches(s).toList();
-  assertEquals(result.length, 6);
-  assertEquals(result[0][0], 'a');
-  assertEquals(result[1][0], 'b');
-  assertEquals(result[2][0], 'c');
-  assertEquals(result[3][0], 'd');
-  assertEquals(result[4][0], 'e');
-  assertEquals(result[5][0], 'f');
-
-  // any non-newline character at the end of a line
-  regexp = new RegExp(r".$", multiLine: true);
-  result = regexp.allMatches(s).toList();
-  assertEquals(result.length, 6);
-  assertEquals(result[0][0], 'A');
-  assertEquals(result[1][0], 'B');
-  assertEquals(result[2][0], 'C');
-  assertEquals(result[3][0], 'D');
-  assertEquals(result[4][0], 'E');
-  assertEquals(result[5][0], 'F');
-
-  // *any* character at the beginning of a line
-  regexp = new RegExp(r"^[^]", multiLine: true);
-  result = regexp.allMatches(s).toList();
-  assertEquals(result.length, 7);
-  assertEquals(result[0][0], 'a');
-  assertEquals(result[1][0], 'b');
-  assertEquals(result[2][0], 'c');
-  assertEquals(result[3][0], '\n');
-  assertEquals(result[4][0], 'd');
-  assertEquals(result[5][0], 'e');
-  assertEquals(result[6][0], 'f');
-
-  // *any* character at the end of a line
-  regexp = new RegExp(r"[^]$", multiLine: true);
-  result = regexp.allMatches(s).toList();
-  assertEquals(result.length, 7);
-  assertEquals(result[0][0], 'A');
-  assertEquals(result[1][0], 'B');
-  assertEquals(result[2][0], 'C');
-  assertEquals(result[3][0], '\r');
-  assertEquals(result[4][0], 'D');
-  assertEquals(result[5][0], 'E');
-  assertEquals(result[6][0], 'F');
-
-  // Some tests from the Mozilla tests, where our behavior used to differ
-  // from SpiderMonkey.
-  // From ecma_3/RegExp/regress-334158.js
-  assertTrue("\x01".contains(new RegExp(r"\ca")));
-  assertFalse("\\ca".contains(new RegExp(r"\ca")));
-  assertFalse("ca".contains(new RegExp(r"\ca")));
-  assertTrue("\\ca".contains(new RegExp(r"\c[a/]")));
-  assertTrue("\\c/".contains(new RegExp(r"\c[a/]")));
-
-  // Test \c in character class
-  var re = r"^[\cM]$";
-  assertTrue("\r".contains(new RegExp(re)));
-  assertFalse("M".contains(new RegExp(re)));
-  assertFalse("c".contains(new RegExp(re)));
-  assertFalse("\\".contains(new RegExp(re)));
-  assertFalse("\x03".contains(new RegExp(re))); // I.e., read as \cc
-
-  re = r"^[\c]]$";
-  assertTrue("c]".contains(new RegExp(re)));
-  assertTrue("\\]".contains(new RegExp(re)));
-  assertFalse("\x1d".contains(new RegExp(re))); // ']' & 0x1f
-  assertFalse("\x03]".contains(new RegExp(re))); // I.e., read as \cc
-
-  // Digit control characters are masked in character classes.
-  re = r"^[\c1]$";
-  assertTrue("\x11".contains(new RegExp(re)));
-  assertFalse("\\".contains(new RegExp(re)));
-  assertFalse("c".contains(new RegExp(re)));
-  assertFalse("1".contains(new RegExp(re)));
-
-  // Underscore control character is masked in character classes.
-  re = r"^[\c_]$";
-  assertTrue("\x1f".contains(new RegExp(re)));
-  assertFalse("\\".contains(new RegExp(re)));
-  assertFalse("c".contains(new RegExp(re)));
-  assertFalse("_".contains(new RegExp(re)));
-
-  re = r"^[\c$]$"; // Other characters are interpreted literally.
-  assertFalse("\x04".contains(new RegExp(re)));
-  assertTrue("\\".contains(new RegExp(re)));
-  assertTrue("c".contains(new RegExp(re)));
-  assertTrue(r"$".contains(new RegExp(re)));
-
-  assertTrue("Z[\\cde".contains(new RegExp(r"^[Z-\c-e]*$")));
-
-  // Test that we handle \s and \S correctly on special Unicode characters.
-  re = r"\s";
-  assertTrue("\u2028".contains(new RegExp(re)));
-  assertTrue("\u2029".contains(new RegExp(re)));
-  assertTrue("\uFEFF".contains(new RegExp(re)));
-
-  re = r"\S";
-  assertFalse("\u2028".contains(new RegExp(re)));
-  assertFalse("\u2029".contains(new RegExp(re)));
-  assertFalse("\uFEFF".contains(new RegExp(re)));
-
-  // Test that we handle \s and \S correctly inside some bizarre
-  // character classes.
-  re = r"[\s-:]";
-  assertTrue('-'.contains(new RegExp(re)));
-  assertTrue(':'.contains(new RegExp(re)));
-  assertTrue(' '.contains(new RegExp(re)));
-  assertTrue('\t'.contains(new RegExp(re)));
-  assertTrue('\n'.contains(new RegExp(re)));
-  assertFalse('a'.contains(new RegExp(re)));
-  assertFalse('Z'.contains(new RegExp(re)));
-
-  re = r"[\S-:]";
-  assertTrue('-'.contains(new RegExp(re)));
-  assertTrue(':'.contains(new RegExp(re)));
-  assertFalse(' '.contains(new RegExp(re)));
-  assertFalse('\t'.contains(new RegExp(re)));
-  assertFalse('\n'.contains(new RegExp(re)));
-  assertTrue('a'.contains(new RegExp(re)));
-  assertTrue('Z'.contains(new RegExp(re)));
-
-  re = r"[^\s-:]";
-  assertFalse('-'.contains(new RegExp(re)));
-  assertFalse(':'.contains(new RegExp(re)));
-  assertFalse(' '.contains(new RegExp(re)));
-  assertFalse('\t'.contains(new RegExp(re)));
-  assertFalse('\n'.contains(new RegExp(re)));
-  assertTrue('a'.contains(new RegExp(re)));
-  assertTrue('Z'.contains(new RegExp(re)));
-
-  re = r"[^\S-:]";
-  assertFalse('-'.contains(new RegExp(re)));
-  assertFalse(':'.contains(new RegExp(re)));
-  assertTrue(' '.contains(new RegExp(re)));
-  assertTrue('\t'.contains(new RegExp(re)));
-  assertTrue('\n'.contains(new RegExp(re)));
-  assertFalse('a'.contains(new RegExp(re)));
-  assertFalse('Z'.contains(new RegExp(re)));
-
-  re = r"[\s]";
-  assertFalse('-'.contains(new RegExp(re)));
-  assertFalse(':'.contains(new RegExp(re)));
-  assertTrue(' '.contains(new RegExp(re)));
-  assertTrue('\t'.contains(new RegExp(re)));
-  assertTrue('\n'.contains(new RegExp(re)));
-  assertFalse('a'.contains(new RegExp(re)));
-  assertFalse('Z'.contains(new RegExp(re)));
-
-  re = r"[^\s]";
-  assertTrue('-'.contains(new RegExp(re)));
-  assertTrue(':'.contains(new RegExp(re)));
-  assertFalse(' '.contains(new RegExp(re)));
-  assertFalse('\t'.contains(new RegExp(re)));
-  assertFalse('\n'.contains(new RegExp(re)));
-  assertTrue('a'.contains(new RegExp(re)));
-  assertTrue('Z'.contains(new RegExp(re)));
-
-  re = r"[\S]";
-  assertTrue('-'.contains(new RegExp(re)));
-  assertTrue(':'.contains(new RegExp(re)));
-  assertFalse(' '.contains(new RegExp(re)));
-  assertFalse('\t'.contains(new RegExp(re)));
-  assertFalse('\n'.contains(new RegExp(re)));
-  assertTrue('a'.contains(new RegExp(re)));
-  assertTrue('Z'.contains(new RegExp(re)));
-
-  re = r"[^\S]";
-  assertFalse('-'.contains(new RegExp(re)));
-  assertFalse(':'.contains(new RegExp(re)));
-  assertTrue(' '.contains(new RegExp(re)));
-  assertTrue('\t'.contains(new RegExp(re)));
-  assertTrue('\n'.contains(new RegExp(re)));
-  assertFalse('a'.contains(new RegExp(re)));
-  assertFalse('Z'.contains(new RegExp(re)));
-
-  re = r"[\s\S]";
-  assertTrue('-'.contains(new RegExp(re)));
-  assertTrue(':'.contains(new RegExp(re)));
-  assertTrue(' '.contains(new RegExp(re)));
-  assertTrue('\t'.contains(new RegExp(re)));
-  assertTrue('\n'.contains(new RegExp(re)));
-  assertTrue('a'.contains(new RegExp(re)));
-  assertTrue('Z'.contains(new RegExp(re)));
-
-  re = r"[^\s\S]";
-  assertFalse('-'.contains(new RegExp(re)));
-  assertFalse(':'.contains(new RegExp(re)));
-  assertFalse(' '.contains(new RegExp(re)));
-  assertFalse('\t'.contains(new RegExp(re)));
-  assertFalse('\n'.contains(new RegExp(re)));
-  assertFalse('a'.contains(new RegExp(re)));
-  assertFalse('Z'.contains(new RegExp(re)));
-
-  // First - is treated as range operator, second as literal minus.
-  // This follows the specification in parsing, but doesn't throw on
-  // the \s at the beginning of the range.
-  re = r"[\s-0-9]";
-  assertTrue(' '.contains(new RegExp(re)));
-  assertTrue('\xA0'.contains(new RegExp(re)));
-  assertTrue('-'.contains(new RegExp(re)));
-  assertTrue('0'.contains(new RegExp(re)));
-  assertTrue('9'.contains(new RegExp(re)));
-  assertFalse('1'.contains(new RegExp(re)));
-
-  // Test beginning and end of line assertions with or without the
-  // multiline flag.
-  re = r"^\d+";
-  assertFalse("asdf\n123".contains(new RegExp(re)));
-  regexp = new RegExp(r"^\d+", multiLine: true);
-  assertTrue("asdf\n123".contains(regexp));
-
-  re = r"\d+$";
-  assertFalse("123\nasdf".contains(new RegExp(re)));
-  regexp = new RegExp(r"\d+$", multiLine: true);
-  assertTrue("123\nasdf".contains(regexp));
-
-  // Test that empty matches are handled correctly for multiline global
-  // regexps.
-  regexp = new RegExp(r"^(.*)", multiLine: true);
-  assertEquals(3, regexp.allMatches("a\n\rb").length);
-  assertEquals(
-      "*a\n*b\r*c\n*\r*d\r*\n*e",
-      "a\nb\rc\n\rd\r\ne"
-          .replaceAllMapped(regexp, (Match m) => "*${m.group(1)}"));
-
-  // Test that empty matches advance one character
-  regexp = new RegExp("");
-  assertEquals("xAx", "A".replaceAll(regexp, "x"));
-  assertEquals(3, new String.fromCharCode(161).replaceAll(regexp, "x").length);
-
-  // Check for lazy RegExp literal cregexpation
-  lazyLiteral(doit) {
-    if (doit)
-      return "".replaceAll(new RegExp(r"foo(", caseSensitive: false), "");
-    return true;
-  }
-
-  assertTrue(lazyLiteral(false));
-  assertThrows(() => lazyLiteral(true));
-
-  // Check $01 and $10
-  regexp = new RegExp("(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)");
-  assertEquals(
-      "t", "123456789t".replaceAllMapped(regexp, (Match m) => m.group(10)));
-  assertEquals("15",
-      "123456789t".replaceAllMapped(regexp, (Match m) => "${m.group(1)}5"));
-  assertEquals(
-      "1", "123456789t".replaceAllMapped(regexp, (Match m) => m.group(1)));
-
-  assertFalse("football".contains(new RegExp(r"()foo$\1")), "football1");
-  assertFalse("football".contains(new RegExp(r"foo$(?=ball)")), "football2");
-  assertFalse("football".contains(new RegExp(r"foo$(?!bar)")), "football3");
-  assertTrue("foo".contains(new RegExp(r"()foo$\1")), "football4");
-  assertTrue("foo".contains(new RegExp(r"foo$(?=(ball)?)")), "football5");
-  assertTrue("foo".contains(new RegExp(r"()foo$(?!bar)")), "football6");
-  assertFalse("football".contains(new RegExp(r"(x?)foo$\1")), "football7");
-  assertFalse("football".contains(new RegExp(r"foo$(?=ball)")), "football8");
-  assertFalse("football".contains(new RegExp(r"foo$(?!bar)")), "football9");
-  assertTrue("foo".contains(new RegExp(r"(x?)foo$\1")), "football10");
-  assertTrue("foo".contains(new RegExp(r"foo$(?=(ball)?)")), "football11");
-  assertTrue("foo".contains(new RegExp(r"foo$(?!bar)")), "football12");
-
-  // Check that the back reference has two successors.  See
-  // BackReferenceNode::PropagateForward.
-  assertFalse('foo'.contains(new RegExp(r"f(o)\b\1")));
-  assertTrue('foo'.contains(new RegExp(r"f(o)\B\1")));
-
-  // Back-reference, ignore case:
-  // ASCII
-  assertEquals(
-      "a",
-      new RegExp(r"x(a)\1x", caseSensitive: false).firstMatch("xaAx").group(1),
-      "backref-ASCII");
-  assertFalse("xaaaaa".contains(new RegExp(r"x(...)\1", caseSensitive: false)),
-      "backref-ASCII-short");
-  assertTrue("xx".contains(new RegExp(r"x((?:))\1\1x", caseSensitive: false)),
-      "backref-ASCII-empty");
-  assertTrue(
-      "xabcx".contains(new RegExp(r"x(?:...|(...))\1x", caseSensitive: false)),
-      "backref-ASCII-uncaptured");
-  assertTrue(
-      "xabcABCx"
-          .contains(new RegExp(r"x(?:...|(...))\1x", caseSensitive: false)),
-      "backref-ASCII-backtrack");
-  assertEquals(
-      "aBc",
-      new RegExp(r"x(...)\1\1x", caseSensitive: false)
-          .firstMatch("xaBcAbCABCx")
-          .group(1),
-      "backref-ASCII-twice");
-
-  for (var i = 0; i < 128; i++) {
-    var testName = "backref-ASCII-char-$i,,${i^0x20}";
-    var test = new String.fromCharCodes([i, i ^ 0x20])
-        .contains(new RegExp(r"^(.)\1$", caseSensitive: false));
-    if (('A'.codeUnitAt(0) <= i && i <= 'Z'.codeUnitAt(0)) ||
-        ('a'.codeUnitAt(0) <= i && i <= 'z'.codeUnitAt(0))) {
-      assertTrue(test, testName);
-    } else {
-      assertFalse(test, testName);
-    }
-  }
-
-  assertFalse('foo'.contains(new RegExp(r"f(o)$\1")), "backref detects at_end");
-
-  // Check decimal escapes doesn't overflow.
-  // (Note: \214 is interpreted as octal).
-  assertEquals(
-      "\x8c7483648",
-      new RegExp(r"\2147483648").firstMatch("\x8c7483648").group(0),
-      "Overflow decimal escape");
-
-  // Check numbers in quantifiers doesn't overflow and doesn't throw on
-  // too large numbers.
-  assertFalse(
-      'b'.contains(
-          new RegExp(r"a{111111111111111111111111111111111111111111111}")),
-      "overlarge1");
-  assertFalse(
-      'b'.contains(
-          new RegExp(r"a{999999999999999999999999999999999999999999999}")),
-      "overlarge2");
-  assertFalse(
-      'b'.contains(
-          new RegExp(r"a{1,111111111111111111111111111111111111111111111}")),
-      "overlarge3");
-  assertFalse(
-      'b'.contains(
-          new RegExp(r"a{1,999999999999999999999999999999999999999999999}")),
-      "overlarge4");
-  assertFalse('b'.contains(new RegExp(r"a{2147483648}")), "overlarge5");
-  assertFalse('b'.contains(new RegExp(r"a{21474836471}")), "overlarge6");
-  assertFalse('b'.contains(new RegExp(r"a{1,2147483648}")), "overlarge7");
-  assertFalse('b'.contains(new RegExp(r"a{1,21474836471}")), "overlarge8");
-  assertFalse(
-      'b'.contains(new RegExp(r"a{2147483648,2147483648}")), "overlarge9");
-  assertFalse(
-      'b'.contains(new RegExp(r"a{21474836471,21474836471}")), "overlarge10");
-  assertFalse('b'.contains(new RegExp(r"a{2147483647}")), "overlarge11");
-  assertFalse('b'.contains(new RegExp(r"a{1,2147483647}")), "overlarge12");
-  assertTrue('a'.contains(new RegExp(r"a{1,2147483647}")), "overlarge13");
-  assertFalse(
-      'a'.contains(new RegExp(r"a{2147483647,2147483647}")), "overlarge14");
-
-  // Check that we don't repad past the end of the string.
-  assertFalse('b'.contains(new RegExp(r"f")));
-  assertFalse('x'.contains(new RegExp(r"[abc]f")));
-  assertFalse('xa'.contains(new RegExp(r"[abc]f")));
-  assertFalse('x'.contains(new RegExp(r"[abc]<")));
-  assertFalse('xa'.contains(new RegExp(r"[abc]<")));
-  assertFalse('b'.contains(new RegExp(r"f", caseSensitive: false)));
-  assertFalse('x'.contains(new RegExp(r"[abc]f", caseSensitive: false)));
-  assertFalse('xa'.contains(new RegExp(r"[abc]f", caseSensitive: false)));
-  assertFalse('x'.contains(new RegExp(r"[abc]<", caseSensitive: false)));
-  assertFalse('xa'.contains(new RegExp(r"[abc]<", caseSensitive: false)));
-  assertFalse('x'.contains(new RegExp(r"f[abc]")));
-  assertFalse('xa'.contains(new RegExp(r"f[abc]")));
-  assertFalse('x'.contains(new RegExp(r"<[abc]")));
-  assertFalse('xa'.contains(new RegExp(r"<[abc]")));
-  assertFalse('x'.contains(new RegExp(r"f[abc]", caseSensitive: false)));
-  assertFalse('xa'.contains(new RegExp(r"f[abc]", caseSensitive: false)));
-  assertFalse('x'.contains(new RegExp(r"<[abc]", caseSensitive: false)));
-  assertFalse('xa'.contains(new RegExp(r"<[abc]", caseSensitive: false)));
-
-  // Test that merging of quick test masks gets it right.
-  assertFalse('x7%%y'.contains(new RegExp(r"x([0-7]%%x|[0-6]%%y)")), 'qt');
-  assertFalse(
-      'xy7%%%y'
-          .contains(new RegExp(r"()x\1(y([0-7]%%%x|[0-6]%%%y)|dkjasldkas)")),
-      'qt2');
-  assertFalse(
-      'xy%%%y'
-          .contains(new RegExp(r"()x\1(y([0-7]%%%x|[0-6]%%%y)|dkjasldkas)")),
-      'qt3');
-  assertFalse(
-      'xy7%%%y'.contains(new RegExp(r"()x\1y([0-7]%%%x|[0-6]%%%y)")), 'qt4');
-  assertFalse(
-      'xy%%%y'
-          .contains(new RegExp(r"()x\1(y([0-7]%%%x|[0-6]%%%y)|dkjasldkas)")),
-      'qt5');
-  assertFalse(
-      'xy7%%%y'.contains(new RegExp(r"()x\1y([0-7]%%%x|[0-6]%%%y)")), 'qt6');
-  assertFalse(
-      'xy7%%%y'.contains(new RegExp(r"xy([0-7]%%%x|[0-6]%%%y)")), 'qt7');
-  assertFalse('x7%%%y'.contains(new RegExp(r"x([0-7]%%%x|[0-6]%%%y)")), 'qt8');
-
-  // Don't hang on this one.
-  "".contains(new RegExp(r"[^\xfe-\xff]*"));
-
-  var longbuffer = new StringBuffer("a");
-  for (var i = 0; i < 100000; i++) {
-    longbuffer.write("a?");
-  }
-  var long = longbuffer.toString();
-
-  // Don't crash on this one, but maybe throw an exception.
-  try {
-    new RegExp(long).allMatches("a");
-  } catch (e) {
-    assertTrue(e.toString().indexOf("Stack overflow") >= 0, "overflow");
-  }
-
-  // Test boundary-checks.
-  void assertRegExpTest(re, input, test) {
-    assertEquals(
-        test, input.contains(new RegExp(re)), "test:" + re + ":" + input);
-  }
-
-  assertRegExpTest(r"b\b", "b", true);
-  assertRegExpTest(r"b\b$", "b", true);
-  assertRegExpTest(r"\bb", "b", true);
-  assertRegExpTest(r"^\bb", "b", true);
-  assertRegExpTest(r",\b", ",", false);
-  assertRegExpTest(r",\b$", ",", false);
-  assertRegExpTest(r"\b,", ",", false);
-  assertRegExpTest(r"^\b,", ",", false);
-
-  assertRegExpTest(r"b\B", "b", false);
-  assertRegExpTest(r"b\B$", "b", false);
-  assertRegExpTest(r"\Bb", "b", false);
-  assertRegExpTest(r"^\Bb", "b", false);
-  assertRegExpTest(r",\B", ",", true);
-  assertRegExpTest(r",\B$", ",", true);
-  assertRegExpTest(r"\B,", ",", true);
-  assertRegExpTest(r"^\B,", ",", true);
-
-  assertRegExpTest(r"b\b", "b,", true);
-  assertRegExpTest(r"b\b", "ba", false);
-  assertRegExpTest(r"b\B", "b,", false);
-  assertRegExpTest(r"b\B", "ba", true);
-
-  assertRegExpTest(r"b\Bb", "bb", true);
-  assertRegExpTest(r"b\bb", "bb", false);
-
-  assertRegExpTest(r"b\b[,b]", "bb", false);
-  assertRegExpTest(r"b\B[,b]", "bb", true);
-  assertRegExpTest(r"b\b[,b]", "b,", true);
-  assertRegExpTest(r"b\B[,b]", "b,", false);
-
-  assertRegExpTest(r"[,b]\bb", "bb", false);
-  assertRegExpTest(r"[,b]\Bb", "bb", true);
-  assertRegExpTest(r"[,b]\bb", ",b", true);
-  assertRegExpTest(r"[,b]\Bb", ",b", false);
-
-  assertRegExpTest(r"[,b]\b[,b]", "bb", false);
-  assertRegExpTest(r"[,b]\B[,b]", "bb", true);
-  assertRegExpTest(r"[,b]\b[,b]", ",b", true);
-  assertRegExpTest(r"[,b]\B[,b]", ",b", false);
-  assertRegExpTest(r"[,b]\b[,b]", "b,", true);
-  assertRegExpTest(r"[,b]\B[,b]", "b,", false);
-
-  // Skipped tests from V8:
-
-  // Test that caching of result doesn't share result objects.
-  // More iterations increases the chance of hitting a GC.
-
-  // Test that we perform the spec required conversions in the correct order.
-
-  // Check that properties of RegExp have the correct permissions.
-
-  // Check that end-anchored regexps are optimized correctly.
-  re = r"(?:a|bc)g$";
-  assertTrue("ag".contains(new RegExp(re)));
-  assertTrue("bcg".contains(new RegExp(re)));
-  assertTrue("abcg".contains(new RegExp(re)));
-  assertTrue("zimbag".contains(new RegExp(re)));
-  assertTrue("zimbcg".contains(new RegExp(re)));
-
-  assertFalse("g".contains(new RegExp(re)));
-  assertFalse("".contains(new RegExp(re)));
-
-  // Global regexp (non-zero start).
-  re = r"(?:a|bc)g$";
-  assertTrue("ag".contains(new RegExp(re)));
-  // Near start of string.
-  assertTrue(new RegExp(re).allMatches("zimbag", 1).isNotEmpty);
-  // At end of string.
-  assertTrue(new RegExp(re).allMatches("zimbag", 6).isEmpty);
-  // Near end of string.
-  assertTrue(new RegExp(re).allMatches("zimbag", 5).isEmpty);
-  assertTrue(new RegExp(re).allMatches("zimbag", 4).isNotEmpty);
-
-  // Anchored at both ends.
-  re = r"^(?:a|bc)g$";
-  assertTrue("ag".contains(new RegExp(re)));
-  assertTrue(new RegExp(re).allMatches("ag", 1).isEmpty);
-  assertTrue(new RegExp(re).allMatches("zag", 1).isEmpty);
-
-  // Long max_length of RegExp.
-  re = r"VeryLongRegExp!{1,1000}$";
-  assertTrue("BahoolaVeryLongRegExp!!!!!!".contains(new RegExp(re)));
-  assertFalse("VeryLongRegExp".contains(new RegExp(re)));
-  assertFalse("!".contains(new RegExp(re)));
-
-  // End anchor inside disjunction.
-  re = r"(?:a$|bc$)";
-  assertTrue("a".contains(new RegExp(re)));
-  assertTrue("bc".contains(new RegExp(re)));
-  assertTrue("abc".contains(new RegExp(re)));
-  assertTrue("zimzamzumba".contains(new RegExp(re)));
-  assertTrue("zimzamzumbc".contains(new RegExp(re)));
-  assertFalse("c".contains(new RegExp(re)));
-  assertFalse("".contains(new RegExp(re)));
-
-  // Only partially anchored.
-  re = r"(?:a|bc$)";
-  assertTrue("a".contains(new RegExp(re)));
-  assertTrue("bc".contains(new RegExp(re)));
-  assertEquals("a", new RegExp(re).firstMatch("abc").group(0));
-  assertEquals(4, new RegExp(re).firstMatch("zimzamzumba").start);
-  assertEquals("bc", new RegExp(re).firstMatch("zimzomzumbc").group(0));
-  assertFalse("c".contains(new RegExp(re)));
-  assertFalse("".contains(new RegExp(re)));
-
-  // Valid syntax in ES5.
-  regexp = new RegExp("(?:x)*");
-  regexp = new RegExp("(x)*");
-
-  // Syntax extension relative to ES5, for matching JSC (and ES3).
-  // Shouldn't throw.
-  regexp = new RegExp("(?=x)*");
-  regexp = new RegExp("(?!x)*");
-
-  // Should throw. Shouldn't hit asserts in debug mode.
-  assertThrows(() => new RegExp('(*)'));
-  assertThrows(() => new RegExp('(?:*)'));
-  assertThrows(() => new RegExp('(?=*)'));
-  assertThrows(() => new RegExp('(?!*)'));
-
-  // Test trimmed regular expression for RegExp.test().
-  assertTrue("abc".contains(new RegExp(r".*abc")));
-  assertFalse("q".contains(new RegExp(r".*\d+")));
-
-  // Tests skipped from V8:
-  // Test that RegExp.prototype.toString() throws TypeError for
-  // incompatible receivers (ES5 section 15.10.6 and 15.10.6.4).
-  testSticky();
-}
-
-testSticky() {
-  var regexp = new RegExp(r"foo.bar");
-  Expect.isNotNull(regexp.matchAsPrefix("foo_bar", 0));
-  Expect.isNull(regexp.matchAsPrefix("..foo_bar", 0));
-  Expect.isNotNull(regexp.matchAsPrefix("..foo_bar", 2));
-
-  regexp = new RegExp(r"^foo");
-  Expect.isNotNull(regexp.matchAsPrefix("foobar", 0));
-  Expect.isNull(regexp.matchAsPrefix("..foo", 0));
-  Expect.isNull(regexp.matchAsPrefix("..foo", 2));
-
-  regexp = new RegExp(r"^foo", multiLine: true);
-  Expect.isNotNull(regexp.matchAsPrefix("foobar", 0));
-  Expect.isNull(regexp.matchAsPrefix("..\nfoo", 0));
-  Expect.isNotNull(regexp.matchAsPrefix("..\nfoo", 3));
-  Expect.isNull(regexp.matchAsPrefix("..\nfoofoo", 6));
-
-  regexp = new RegExp(r"bar$");
-  Expect.isNull(regexp.matchAsPrefix("foobar", 0));
-  Expect.isNotNull(regexp.matchAsPrefix("foobar", 3));
-}
diff --git a/tests/corelib_2/regexp/regress-6-9-regexp_test.dart b/tests/corelib_2/regexp/regress-6-9-regexp_test.dart
deleted file mode 100644
index f35c8787717..00000000000
--- a/tests/corelib_2/regexp/regress-6-9-regexp_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2009 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  // Check that the perfect mask check isn't overly optimistic.
-
-  assertFalse(new RegExp(r"[6-9]").hasMatch('2'));
-}
diff --git a/tests/corelib_2/regexp/regress-regexp-codeflush_test.dart b/tests/corelib_2/regexp/regress-regexp-codeflush_test.dart
deleted file mode 100644
index 6e1ac5fb93d..00000000000
--- a/tests/corelib_2/regexp/regress-regexp-codeflush_test.dart
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2011 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  // Flags: --gc_global
-
-  // Regression test for regexp that has multiple matches and which
-  // internally calls RegExpImpl::IrregexpExecOnce more than once without
-  // ensuring that the regexp is compiled.
-  // This can create a crash if the code was exchanged with the sweep
-  // generation (for code flushing support) in GC during the matching.
-
-  var re = new RegExp('(s)');
-
-  String foo(Match m) {
-    return "42";
-  }
-
-  // Run enough times to get a number of GC's (all mark sweep because of the
-  // --gc_global) flag.
-  for (var i = 0; i < 10; i++) {
-    // Make a long string with plenty of matches for re.
-    var x = "s foo s bar s foo s bar s";
-    x = x + x;
-    x = x + x;
-    x = x + x;
-    x = x + x;
-    x = x + x;
-    x = x + x;
-    x = x + x;
-    x.replaceAllMapped(re, foo);
-  }
-}
diff --git a/tests/corelib_2/regexp/regress-regexp-construct-result_test.dart b/tests/corelib_2/regexp/regress-regexp-construct-result_test.dart
deleted file mode 100644
index 764b1bfde77..00000000000
--- a/tests/corelib_2/regexp/regress-regexp-construct-result_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  // Create a huge regexp with many alternative capture groups, most of
-  // which do not capture anything, but the corresponding capture slot
-  // in the result object has to exist, even though filled with null.
-  // Having a large result array helps stressing GC.
-
-  var num_captures = 1000;
-  var regexp_string = "(a)";
-  for (var i = 0; i < num_captures - 1; i++) {
-    regexp_string += "|(b)";
-  }
-  var regexp = new RegExp(regexp_string);
-
-  for (var i = 0; i < 10; i++) {
-    var matches = regexp.firstMatch("a");
-    var count = 0;
-    assertEquals(num_captures + 1, matches.groupCount + 1);
-  }
-}
diff --git a/tests/corelib_2/regexp/repeat-match-waldemar_test.dart b/tests/corelib_2/regexp/repeat-match-waldemar_test.dart
deleted file mode 100644
index 10ff028cdc8..00000000000
--- a/tests/corelib_2/regexp/repeat-match-waldemar_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  // "Some test cases identified by Waldemar Horwat in response to this bug:
-  // https:new RegExp(r"/bugs.webkit.org")show_bug.cgi?id=48101"
-
-  shouldBe(new RegExp(r"(?:a*?){2,}").firstMatch("aa"), ["aa"]);
-  shouldBe(new RegExp(r"(?:a*?){2,}").firstMatch("a"), ["a"]);
-  shouldBe(new RegExp(r"(?:a*?){2,}").firstMatch(""), [""]);
-
-  shouldBe(new RegExp(r"(?:a*?)").firstMatch("aa"), [""]);
-  shouldBe(new RegExp(r"(?:a*?)").firstMatch("a"), [""]);
-  shouldBe(new RegExp(r"(?:a*?)").firstMatch(""), [""]);
-
-  shouldBe(new RegExp(r"(?:a*?)(?:a*?)(?:a*?)").firstMatch("aa"), [""]);
-  shouldBe(new RegExp(r"(?:a*?)(?:a*?)(?:a*?)").firstMatch("a"), [""]);
-  shouldBe(new RegExp(r"(?:a*?)(?:a*?)(?:a*?)").firstMatch(""), [""]);
-
-  shouldBe(new RegExp(r"(?:a*?){2}").firstMatch("aa"), [""]);
-  shouldBe(new RegExp(r"(?:a*?){2}").firstMatch("a"), [""]);
-  shouldBe(new RegExp(r"(?:a*?){2}").firstMatch(""), [""]);
-
-  shouldBe(new RegExp(r"(?:a*?){2,3}").firstMatch("aa"), ["a"]);
-  shouldBe(new RegExp(r"(?:a*?){2,3}").firstMatch("a"), ["a"]);
-  shouldBe(new RegExp(r"(?:a*?){2,3}").firstMatch(""), [""]);
-
-  shouldBe(new RegExp(r"(?:a*?)?").firstMatch("aa"), ["a"]);
-  shouldBe(new RegExp(r"(?:a*?)?").firstMatch("a"), ["a"]);
-  shouldBe(new RegExp(r"(?:a*?)?").firstMatch(""), [""]);
-
-  shouldBe(new RegExp(r"(?:a*?)*").firstMatch("aa"), ["aa"]);
-  shouldBe(new RegExp(r"(?:a*?)*").firstMatch("a"), ["a"]);
-  shouldBe(new RegExp(r"(?:a*?)*").firstMatch(""), [""]);
-}
diff --git a/tests/corelib_2/regexp/results-cache_test.dart b/tests/corelib_2/regexp/results-cache_test.dart
deleted file mode 100644
index 4e75e4a92b9..00000000000
--- a/tests/corelib_2/regexp/results-cache_test.dart
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2012 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  // Long string to trigger caching.
-  var string = """Friends, Romans, countrymen, lend me your ears!  
-  I come to bury Caesar, not to praise him.        
-  The evil that men do lives after them,           
-  The good is oft interred with their bones;       
-  So let it be with Caesar. The noble Brutus       
-  Hath told you Caesar was ambitious;              
-  If it were so, it was a grievous fault,          
-  And grievously hath Caesar answer'd it.          
-  Here, under leave of Brutus and the rest-        
-  For Brutus is an honorable man;                  
-  So are they all, all honorable men-              
-  Come I to speak in Caesar's funeral.             
-  He was my friend, faithful and just to me;       
-  But Brutus says he was ambitious,                
-  And Brutus is an honorable man.                  
-  He hath brought many captives home to Rome,      
-  Whose ransoms did the general coffers fill.      
-  Did this in Caesar seem ambitious?               
-  When that the poor have cried, Caesar hath wept; 
-  Ambition should be made of sterner stuff:        
-  Yet Brutus says he was ambitious,                
-  And Brutus is an honorable man.                  
-  You all did see that on the Lupercal             
-  I thrice presented him a kingly crown,           
-  Which he did thrice refuse. Was this ambition?   
-  Yet Brutus says he was ambitious,                
-  And sure he is an honorable man.                 
-  I speak not to disprove what Brutus spoke,       
-  But here I am to speak what I do know.           
-  You all did love him once, not without cause;    
-  What cause withholds you then to mourn for him?  
-  O judgement, thou art fled to brutish beasts,    
-  And men have lost their reason. Bear with me;    
-  My heart is in the coffin there with Caesar,     
-  And I must pause till it come back to me.""";
-
-  var replaced = string.replaceAll(new RegExp(r"\b\w+\b"), "foo");
-  for (var i = 0; i < 3; i++) {
-    assertEquals(replaced, string.replaceAll(new RegExp(r"\b\w+\b"), "foo"));
-  }
-
-  // Check that the result is in a COW array.
-  var words = string.split(" ");
-  assertEquals("Friends,", words[0]);
-  words[0] = "Enemies,";
-  words = string.split(" ");
-  assertEquals("Friends,", words[0]);
-}
diff --git a/tests/corelib_2/regexp/stack-overflow2_test.dart b/tests/corelib_2/regexp/stack-overflow2_test.dart
deleted file mode 100644
index e5c071ffffa..00000000000
--- a/tests/corelib_2/regexp/stack-overflow2_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-// Failing tests extracted from pcre_test.dart. Large generated functions
-// cause a stack overflow in DiscoverBlocks().
-
-void main() {
-  var res149 = new RegExp(
-      r"(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\d+(?:\s|$))(\w+)\s+(\270)",
-      caseSensitive: false);
-
-  assertToStringEquals(
-      "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 ABC ABC,1 ,2 ,3 ,4 ,5 ,6 ,7 ,8 ,9 ,10 ,11 ,12 ,13 ,14 ,15 ,16 ,17 ,18 ,19 ,20 ,21 ,22 ,23 ,24 ,25 ,26 ,27 ,28 ,29 ,30 ,31 ,32 ,33 ,34 ,35 ,36 ,37 ,38 ,39 ,40 ,41 ,42 ,43 ,44 ,45 ,46 ,47 ,48 ,49 ,50 ,51 ,52 ,53 ,54 ,55 ,56 ,57 ,58 ,59 ,60 ,61 ,62 ,63 ,64 ,65 ,66 ,67 ,68 ,69 ,70 ,71 ,72 ,73 ,74 ,75 ,76 ,77 ,78 ,79 ,80 ,81 ,82 ,83 ,84 ,85 ,86 ,87 ,88 ,89 ,90 ,91 ,92 ,93 ,94 ,95 ,96 ,97 ,98 ,99 ,100 ,101 ,102 ,103 ,104 ,105 ,106 ,107 ,108 ,109 ,110 ,111 ,112 ,113 ,114 ,115 ,116 ,117 ,118 ,119 ,120 ,121 ,122 ,123 ,124 ,125 ,126 ,127 ,128 ,129 ,130 ,131 ,132 ,133 ,134 ,135 ,136 ,137 ,138 ,139 ,140 ,141 ,142 ,143 ,144 ,145 ,146 ,147 ,148 ,149 ,150 ,151 ,152 ,153 ,154 ,155 ,156 ,157 ,158 ,159 ,160 ,161 ,162 ,163 ,164 ,165 ,166 ,167 ,168 ,169 ,170 ,171 ,172 ,173 ,174 ,175 ,176 ,177 ,178 ,179 ,180 ,181 ,182 ,183 ,184 ,185 ,186 ,187 ,188 ,189 ,190 ,191 ,192 ,193 ,194 ,195 ,196 ,197 ,198 ,199 ,200 ,201 ,202 ,203 ,204 ,205 ,206 ,207 ,208 ,209 ,210 ,211 ,212 ,213 ,214 ,215 ,216 ,217 ,218 ,219 ,220 ,221 ,222 ,223 ,224 ,225 ,226 ,227 ,228 ,229 ,230 ,231 ,232 ,233 ,234 ,235 ,236 ,237 ,238 ,239 ,240 ,241 ,242 ,243 ,244 ,245 ,246 ,247 ,248 ,249 ,250 ,251 ,252 ,253 ,254 ,255 ,256 ,257 ,258 ,259 ,260 ,261 ,262 ,263 ,264 ,265 ,266 ,267 ,268 ,269 ,ABC,ABC",
-      res149.firstMatch(
-          "O900 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 ABC ABC"),
-      242);
-}
diff --git a/tests/corelib_2/regexp/stack-overflow_test.dart b/tests/corelib_2/regexp/stack-overflow_test.dart
deleted file mode 100644
index b6992379678..00000000000
--- a/tests/corelib_2/regexp/stack-overflow_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description(
-      'Test for <a href="https://bugs.webkit.org/show_bug.cgi?id=8870">bug 8870</a>: Crash typing in Yahoo auto-complete widget.');
-
-  var re = new RegExp(
-      r'^(\s+|[,:{}\[\]]|"(\\["\\\/bfnrtu]|[^\u0000-\u001f"\\]+)*"|-?\d+(\.\d*)?([eE][+-]?\d+)?|true|false|null)+$');
-
-  var result = re.firstMatch(
-      '{"ResultSet":{"totalResultsAvailable":"101000000","totalResultsReturned":100,"firstResultPosition":1,"Result":[{"Title":"Solar Eclipses of Saros 132","Summary":"Solar Eclipses of Saros 132 Solar Eclipses of Saros 132 The periodicity and recurrence of solar (and lunar) eclipses is governed by the Saros cycle, a period of approximately 6,585. 3 days (18 years 11 days 8 hours). When two eclipses are ...","Url":"http:\\/\\/sunearth.gsfc.nasa.gov\\/eclipse\\/SEsaros\\/SEsaros132.html","ClickUrl":"http:\\/\\/uk.wrs.yahoo.com\\/_ylt=A0Je5VwQjWVEsGcBUBzdmMwF;_ylu=X3oDMTB2cXVjNTM5BGNvbG8DdwRsA1dTMQRwb3MDMQRzZWMDc3IEdnRpZAM-\\/SIG=19ip3vo9u\\/EXP=1147592336\\/**http%3a\\/\\/rdrw1.yahoo.com\\/click%3fu=http%3a\\/\\/sunearth.gsfc.nasa.gov\\/eclipse\\/SEsaros\\/SEsaros132.html%26y=0405DC60F30D6DD673%26i=482%26c=15685%26q=02%255ESSHPM%255BL7.,-6%26e=utf-8%26r=0%26d=wow%7eWBSV-en-us%26n=3O6KG7JU5PIK8T7I%26s=6%26t=%26m=44658D10%26x=05A6B5FDC2F29725CD6EE467684E0FE76D","ModificationDate":1146207600,"MimeType":"text\\/html"},{"Title":"Psalms 132 -Matthew Henry\'s Commentary - Bible Software by johnhurt.com","Summary":"Psalms 132 - Matthew Henry Commentary - Bible Software by johnhurt.com ... Henry\'s Psalms 131. Psalms 132. Outline of Psalms 132. David\'s care for the ark ...","Url":"http:\\/\\/www.htmlbible.com\\/kjv30\\/henry\\/H19C132.htm","ClickUrl":"http:\\/\\/uk.wrs.yahoo.com\\/_ylt=A0Je5VwQjWVEsGcBVhzdmMwF;_ylu=X3oDMTB2ZjQ4dDExBGNvbG8DdwRsA1dTMQRwb3MDMgRzZWMDc3IEdnRpZAM-\\/SIG=1246fjpfq\\/EXP=1147592336\\/**http%3a\\/\\/www.htmlbible.com\\/kjv30\\/henry\\/H19C132.htm","ModificationDate":1015660800,"MimeType":"text\\/html","Cache":{"Url":"http:\\/\\/uk.wrs.yahoo.com\\/_ylt=A0Je5VwQjWVEsGcBWxzdmMwF;_ylu=X3oDMTBwZG5hOWwzBGNvbG8DdwRwb3MDMgRzZWMDc3IEdnRpZAM-\\/SIG=16llm3b1a\\/EXP=1147592336\\/**http%3a\\/\\/66.218.69.11\\/search\\/cache%3fei=UTF-8%26query=132%26output=json%26results=100%26appid=jennyhan_ac%26u=www.htmlbible.com\\/kjv30\\/henry\\/H19C132.htm%26w=132%26d=XlIIG0aqMlsm%26icp=1%26.intl=us","Size":"4160"}},{"Title":"General requirements. - 1910.132","Summary":"General%20requirements.%20-%201910.132 ... 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Footnotes: Psalm 132:6 That is, Kiriath Jearim. 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Application of part 132 requirements in Great Lakes States and Tribes ... 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[Red Hat Security Advisory RHSA-2003:245-15] July 31, 2003 18:00 GMT. 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SEL2 URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 132 NWS STORM PREDICTION CENTER NORMAN OK 325 PM CDT ...","Url":"http:\\/\\/www.spc.noaa.gov\\/products\\/watch\\/ww0132.html","ClickUrl":"http:\\/\\/uk.wrs.yahoo.com\\/_ylt=A0Je5VwQjWVEsGcBRx3dmMwF;_ylu=X3oDMTEwanQ3MzU2BGNvbG8DdwRsA1dTMQRwb3MDMzcEc2VjA3NyBHZ0aWQD\\/SIG=126urlun7\\/EXP=1147592336\\/**http%3a\\/\\/www.spc.noaa.gov\\/products\\/watch\\/ww0132.html","ModificationDate":1146812400,"MimeType":"text\\/html","Cache":{"Url":"http:\\/\\/uk.wrs.yahoo.com\\/_ylt=A0Je5VwQjWVEsGcBTB3dmMwF;_ylu=X3oDMTBxNDRkc3R1BGNvbG8DdwRwb3MDMzcEc2VjA3NyBHZ0aWQD\\/SIG=16n3e4s74\\/EXP=1147592336\\/**http%3a\\/\\/66.218.69.11\\/search\\/cache%3fei=UTF-8%26query=132%26output=json%26results=100%26appid=jennyhan_ac%26u=www.spc.noaa.gov\\/products\\/watch\\/ww0132.html%26w=132%26d=N4g-pUaqMusz%26icp=1%26.intl=us","Size":"19990"}},{"Title":"PLANT PHYSIOLOGY ONLINE -- Table of Contents (132 [2])","Summary":"To see an article, click its [Full Text] link. To review many abstracts, check the boxes to the left of the titles you want, and click the \'Get All Checked Abstract(s)\' button. 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The AgGPS 132. can output positions up to 10 ...","Url":"http:\\/\\/www.farmgis.com\\/products\\/hardware\\/gps\\/aggps132.pdf","ClickUrl":"http:\\/\\/www.farmgis.com\\/products\\/hardware\\/gps\\/aggps132.pdf#search=\'\'","ModificationDate":1098169200,"MimeType":"application\\/pdf","Cache":{"Url":"http:\\/\\/uk.wrs.yahoo.com\\/_ylt=A0Je5VwQjWVEsGcBWB3dmMwF;_ylu=X3oDMTBxcXNibWtvBGNvbG8DdwRwb3MDMzkEc2VjA3NyBHZ0aWQD\\/SIG=16us46bp9\\/EXP=1147592336\\/**http%3a\\/\\/66.218.69.11\\/search\\/cache%3fei=UTF-8%26query=132%26output=json%26results=100%26appid=jennyhan_ac%26u=www.farmgis.com\\/products\\/hardware\\/gps\\/aggps132.pdf%26w=132%26d=EvLM70aqMkiV%26icp=1%26.intl=us","Size":"162160"}},{"Title":"Chapter 132 \\u2014 Grand Jury, Indictments and Other Accusatory Instruments","Summary":"The text appearing in this database was produced from material provided by the Legislative Counsel Committee of the Oregon Legislative Assembly. The official record copy is the printed published copy of the Oregon Revised Statutes. ... 132.010 Composition. A grand jury is a body of seven persons drawn from the jurors in attendance ... 132.030 Challenge of juror prohibited; when juror may be excused. 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Redistribution subject to AIP license or copyright, see http:\\/\\/ojps.aip.org\\/japo\\/japcr.jsp. Downloaded 19 Aug 2002 to 132.163.136.56.","Url":"http:\\/\\/tf.nist.gov\\/general\\/pdf\\/550.pdf","ClickUrl":"http:\\/\\/tf.nist.gov\\/general\\/pdf\\/550.pdf#search=\'\'","ModificationDate":1029740400,"MimeType":"application\\/pdf","Cache":{"Url":"http:\\/\\/uk.wrs.yahoo.com\\/_ylt=A0Je5VwQjWVEsGcBZB3dmMwF;_ylu=X3oDMTBxcDdtZjJoBGNvbG8DdwRwb3MDNDEEc2VjA3NyBHZ0aWQD\\/SIG=16bgqks5e\\/EXP=1147592336\\/**http%3a\\/\\/66.218.69.11\\/search\\/cache%3fei=UTF-8%26query=132%26output=json%26results=100%26appid=jennyhan_ac%26u=tf.nist.gov\\/general\\/pdf\\/550.pdf%26w=132%26d=PNXPXkaqMkLS%26icp=1%26.intl=us","Size":"2485625"}},{"Title":"Father Tom Inspired Pflugerville #132 To Evolve Into A Strong Fraternal Society","Summary":"... Monsignor Tom Frank is presented with the 2002 Society #132. 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[Log In] [Current Auction] [Register to Bid] [FAQ] [About Us] Tired of Ebay rip-offs, scams, and dishonest people?","Url":"http:\\/\\/www.webmineral.com\\/data\\/Alsakharovite-Zn.shtml","ClickUrl":"http:\\/\\/uk.wrs.yahoo.com\\/_ylt=A0Je5VwQjWVEsGcBax3dmMwF;_ylu=X3oDMTEwN2JwMzlhBGNvbG8DdwRsA1dTMQRwb3MDNDMEc2VjA3NyBHZ0aWQD\\/SIG=129j54b3c\\/EXP=1147592336\\/**http%3a\\/\\/www.webmineral.com\\/data\\/Alsakharovite-Zn.shtml","ModificationDate":1147158000,"MimeType":"text\\/html","Cache":{"Url":"http:\\/\\/uk.wrs.yahoo.com\\/_ylt=A0Je5VwQjWVEsGcBcB3dmMwF;_ylu=X3oDMTBxamhmc2lnBGNvbG8DdwRwb3MDNDMEc2VjA3NyBHZ0aWQD\\/SIG=16q6pnttb\\/EXP=1147592336\\/**http%3a\\/\\/66.218.69.11\\/search\\/cache%3fei=UTF-8%26query=132%26output=json%26results=100%26appid=jennyhan_ac%26u=www.webmineral.com\\/data\\/Alsakharovite-Zn.shtml%26w=132%26d=B_smj0aqMwJU%26icp=1%26.intl=us","Size":"38594"}},{"Title":"Psalm 132","Summary":"... Psalm 132. The Eternal Dwelling of God in Zion ...","Url":"http:\\/\\/www.hope.edu\\/academic\\/religion\\/bandstra\\/BIBLE\\/PSA\\/PSA132.HTM","ClickUrl":"http:\\/\\/uk.wrs.yahoo.com\\/_ylt=A0Je5VwQjWVEsGcBch3dmMwF;_ylu=X3oDMTEwdXE2dm1tBGNvbG8DdwRsA1dTMQRwb3MDNDQEc2VjA3NyBHZ0aWQD\\/SIG=12n448u4t\\/EXP=1147592336\\/**http%3a\\/\\/www.hope.edu\\/academic\\/religion\\/bandstra\\/BIBLE\\/PSA\\/PSA132.HTM","ModificationDate":1114758000,"MimeType":"text\\/html","Cache":{"Url":"http:\\/\\/uk.wrs.yahoo.com\\/_ylt=A0Je5VwQjWVEsGcBdx3dmMwF;_ylu=X3oDMTBxMjBjZXRuBGNvbG8DdwRwb3MDNDQEc2VjA3NyBHZ0aWQD\\/SIG=17829d5da\\/EXP=1147592336\\/**http%3a\\/\\/66.218.69.11\\/search\\/cache%3fei=UTF-8%26query=132%26output=json%26results=100%26appid=jennyhan_ac%26u=www.hope.edu\\/academic\\/religion\\/bandstra\\/BIBLE\\/PSA\\/PSA132.HTM%26w=132%26d=Gs9Yt0aqMhg_%26icp=1%26.intl=us","Size":"5137"}},{"Title":"Bug 132 - Heartbeat requires all nodes to be pre-configured in ha.cf","Summary":"... Bugzilla Bug 132. Heartbeat requires all nodes to be pre-configured in ha.cf ... Bug#: 132. Platform: All DEC HP Macintosh PC SGI Sun Other ...","Url":"http:\\/\\/www.osdl.org\\/developer_bugzilla\\/show_bug.cgi?id=132","ClickUrl":"http:\\/\\/uk.wrs.yahoo.com\\/_ylt=A0Je5VwQjWVEsGcBeR3dmMwF;_ylu=X3oDMTEwa3QxajIyBGNvbG8DdwRsA1dTMQRwb3MDNDUEc2VjA3NyBHZ0aWQD\\/SIG=12g1vvd06\\/EXP=1147592336\\/**http%3a\\/\\/www.osdl.org\\/developer_bugzilla\\/show_bug.cgi%3fid=132","ModificationDate":1146553200,"MimeType":"text\\/html","Cache":{"Url":"http:\\/\\/uk.wrs.yahoo.com\\/_ylt=A0Je5VwQjWVEsGcBfh3dmMwF;_ylu=X3oDMTBxbHY2NGw5BGNvbG8DdwRwb3MDNDUEc2VjA3NyBHZ0aWQD\\/SIG=177hj2go7\\/EXP=1147592336\\/**http%3a\\/\\/66.218.69.11\\/search\\/cache%3fei=UTF-8%26query=132%26output=json%26results=100%26appid=jennyhan_ac%26u=www.osdl.org\\/developer_bugzilla\\/show_bug.cgi%253Fid%253D132%26w=132%26d=Uzd0n0aqMtwg%26icp=1%26.intl=us","Size":"40101"}},{"Title":"Bug 132 - ChargeDispositionPlea and ChargeDispositionVerdict","Summary":"... Bugzilla Bug 132. 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To take full advantage of Flickr, you should use a JavaScript-enabled browser and ...","Url":"http:\\/\\/www.flickr.com\\/photos\\/brettsky\\/53839790\\/","ClickUrl":"http:\\/\\/uk.wrs.yahoo.com\\/_ylt=A0Je5VwQjWVEsGcBsh7dmMwF;_ylu=X3oDMTEwZ2lxZDhhBGNvbG8DdwRsA1dTMQRwb3MDOTQEc2VjA3NyBHZ0aWQD\\/SIG=123ojcbf0\\/EXP=1147592336\\/**http%3a\\/\\/www.flickr.com\\/photos\\/brettsky\\/53839790\\/","ModificationDate":1145862000,"MimeType":"text\\/html","Cache":{"Url":"http:\\/\\/uk.wrs.yahoo.com\\/_ylt=A0Je5VwQjWVEsGcBtx7dmMwF;_ylu=X3oDMTBxYTJvNGFhBGNvbG8DdwRwb3MDOTQEc2VjA3NyBHZ0aWQD\\/SIG=16ks6e563\\/EXP=1147592336\\/**http%3a\\/\\/66.218.69.11\\/search\\/cache%3fei=UTF-8%26query=132%26output=json%26results=100%26appid=jennyhan_ac%26u=www.flickr.com\\/photos\\/brettsky\\/53839790\\/%26w=132%26d=GA_4oEaqMq4P%26icp=1%26.intl=us","Size":"74392"}},{"Title":"Ag GPS 124 \\/ 132","Summary":"AgGPS 124 \\/ 132. Operation Manual. AgGPS Receiver Firmware Version 1.40, 1.41 and 1.42. Part Number 38747-00-ENG. Revision C. September 2000. T. Support Offices. Trimble Precision Agricultural Systems. 9290 Bond Street, Suite 102. Overland Park, KS 66214 U.S.A. ... describes how to install and configure the AgGPS_ 124, 132, and 132. Air receivers ...","Url":"http:\\/\\/www.linco.com\\/AG124132REVB.PDF","ClickUrl":"http:\\/\\/www.linco.com\\/AG124132REVB.PDF#search=\'\'","ModificationDate":986281200,"MimeType":"application\\/pdf","Cache":{"Url":"http:\\/\\/uk.wrs.yahoo.com\\/_ylt=A0Je5VwQjWVEsGcBvB7dmMwF;_ylu=X3oDMTBxbDgxOWxkBGNvbG8DdwRwb3MDOTUEc2VjA3NyBHZ0aWQD\\/SIG=16ajtq3hk\\/EXP=1147592336\\/**http%3a\\/\\/66.218.69.11\\/search\\/cache%3fei=UTF-8%26query=132%26output=json%26results=100%26appid=jennyhan_ac%26u=www.linco.com\\/AG124132REVB.PDF%26w=132%26d=FCohUkaqMjOV%26icp=1%26.intl=us","Size":"3610097"}},{"Title":"Tehillim - Chapter 132 | Chabad.org","Summary":"Please login for more site features. Tehillim - Chapter 132. 1. A song of ascents. Remember, O Lord, onto David all his affliction. 2. That he swore to the Lord, he vowed to the Mighty One of Jacob; ... Chabad.org \\" Library \\" Classic Texts \\" The Bible (with Rashi) \\" K\'tuvim \\" Tehillim \\" Chapter 132 ...","Url":"http:\\/\\/www.chabad.org\\/library\\/article.asp?AID=16353","ClickUrl":"http:\\/\\/uk.wrs.yahoo.com\\/_ylt=A0Je5VwQjWVEsGcBvh7dmMwF;_ylu=X3oDMTEwam44NW9vBGNvbG8DdwRsA1dTMQRwb3MDOTYEc2VjA3NyBHZ0aWQD\\/SIG=129b821nj\\/EXP=1147592336\\/**http%3a\\/\\/www.chabad.org\\/library\\/article.asp%3fAID=16353","ModificationDate":1146898800,"MimeType":"text\\/html","Cache":{"Url":"http:\\/\\/uk.wrs.yahoo.com\\/_ylt=A0Je5VwQjWVEsGcBwx7dmMwF;_ylu=X3oDMTBxczRxYWlqBGNvbG8DdwRwb3MDOTYEc2VjA3NyBHZ0aWQD\\/SIG=170gmib5a\\/EXP=1147592336\\/**http%3a\\/\\/66.218.69.11\\/search\\/cache%3fei=UTF-8%26query=132%26output=json%26results=100%26appid=jennyhan_ac%26u=www.chabad.org\\/library\\/article.asp%253FAID%253D16353%26w=132%26d=I-adaEaqMvld%26icp=1%26.intl=us","Size":"41051"}},{"Title":"Downloaded 19 Jan 2003 to 132.77.4.43. Redistribution subject to AIP license or copyright, see http:\\/\\/ojps.aip.org\\/... ","Summary":"Downloaded 19 Jan 2003 to 132.77.4.43. Redistribution subject to AIP license or copyright, see http:\\/\\/ojps.aip.org\\/jcpo\\/jcpcr.jsp. Downloaded 19 Jan 2003 to 132.77.4.43.","Url":"http:\\/\\/www.weizmann.ac.il\\/chemphys\\/Frydman_group\\/Publications\\/ExchDynamics-JCP90.pdf","ClickUrl":"http:\\/\\/www.weizmann.ac.il\\/chemphys\\/Frydman_group\\/Publications\\/ExchDynamics-JCP90.pdf#search=\'\'","ModificationDate":1061622000,"MimeType":"application\\/pdf","Cache":{"Url":"http:\\/\\/uk.wrs.yahoo.com\\/_ylt=A0Je5VwQjWVEsGcByB7dmMwF;_ylu=X3oDMTBxZGVwcTFiBGNvbG8DdwRwb3MDOTcEc2VjA3NyBHZ0aWQD\\/SIG=17p1893is\\/EXP=1147592336\\/**http%3a\\/\\/66.218.69.11\\/search\\/cache%3fei=UTF-8%26query=132%26output=json%26results=100%26appid=jennyhan_ac%26u=www.weizmann.ac.il\\/chemphys\\/Frydman_group\\/Publications\\/ExchDynamics-JCP90.pdf%26w=132%26d=KPVdS0aqMkW1%26icp=1%26.intl=us","Size":"816603"}},{"Title":"Downloaded 19 May 2003 to 132.77.4.43. Redistribution subject to AIP license or copyright, see http:\\/\\/ojps.aip.org\\/... ","Summary":"Downloaded 19 May 2003 to 132.77.4.43. Redistribution subject to AIP license or copyright, see http:\\/\\/ojps.aip.org\\/japo\\/japcr.jsp. Downloaded 19 May 2003 to 132.77.4.43.","Url":"http:\\/\\/www.weizmann.ac.il\\/wagner\\/COURSES\\/Reading%20material%20(papers)\\/030_JAP_1990_ContactAngle.pdf","ClickUrl":"http:\\/\\/www.weizmann.ac.il\\/wagner\\/COURSES\\/Reading%20material%20(papers)\\/030_JAP_1990_ContactAngle.pdf#search=\'\'","ModificationDate":1136880000,"MimeType":"application\\/pdf","Cache":{"Url":"http:\\/\\/uk.wrs.yahoo.com\\/_ylt=A0Je5VwQjWVEsGcBzR7dmMwF;_ylu=X3oDMTBxMjBxZ2VoBGNvbG8DdwRwb3MDOTgEc2VjA3NyBHZ0aWQD\\/SIG=18pfdig62\\/EXP=1147592336\\/**http%3a\\/\\/66.218.69.11\\/search\\/cache%3fei=UTF-8%26query=132%26output=json%26results=100%26appid=jennyhan_ac%26u=www.weizmann.ac.il\\/wagner\\/COURSES\\/Reading%252520material%252520%2528papers%2529\\/030_JAP_1990_ContactAngle.pdf%26w=132%26d=Nf5MWEaqMkV0%26icp=1%26.intl=us","Size":"784314"}},{"Title":"Downloaded 24 Jul 2002 to 132.163.135.12. Redistribution subject to AIP license or copyright, see http:\\/\\/ojps.aip... ","Summary":"Downloaded 24 Jul 2002 to 132.163.135.12. Redistribution subject to AIP license or copyright, see http:\\/\\/ojps.aip.org\\/japo\\/japcr.jsp. Downloaded 24 Jul 2002 to 132.163.135.12.","Url":"http:\\/\\/tf.nist.gov\\/general\\/pdf\\/569.pdf","ClickUrl":"http:\\/\\/tf.nist.gov\\/general\\/pdf\\/569.pdf#search=\'\'","ModificationDate":1027494000,"MimeType":"application\\/pdf","Cache":{"Url":"http:\\/\\/uk.wrs.yahoo.com\\/_ylt=A0Je5VwQjWVEsGcB0h7dmMwF;_ylu=X3oDMTBxNmJhcjNhBGNvbG8DdwRwb3MDOTkEc2VjA3NyBHZ0aWQD\\/SIG=16b31en6n\\/EXP=1147592336\\/**http%3a\\/\\/66.218.69.11\\/search\\/cache%3fei=UTF-8%26query=132%26output=json%26results=100%26appid=jennyhan_ac%26u=tf.nist.gov\\/general\\/pdf\\/569.pdf%26w=132%26d=IpdTwEaqMirR%26icp=1%26.intl=us","Size":"1002734"}},{"Title":"[DB] naruto 132","Summary":"","Url":"http:\\/\\/yhbt.mine.nu\\/t\\/n132.torrent","ClickUrl":"http:\\/\\/uk.wrs.yahoo.com\\/_ylt=A0Je5VwQjWVEsGcB1B7dmMwF;_ylu=X3oDMTExaW11dG45BGNvbG8DdwRsA1dTMQRwb3MDMTAwBHNlYwNzcgR2dGlkAw--\\/SIG=11m58k4sj\\/EXP=1147592336\\/**http%3a\\/\\/yhbt.mine.nu\\/t\\/n132.torrent","ModificationDate":1114671600,"MimeType":"unknown"}]}}');
-
-  assertEquals(result.groupCount + 1, 5);
-}
diff --git a/tests/corelib_2/regexp/standalones_test.dart b/tests/corelib_2/regexp/standalones_test.dart
deleted file mode 100644
index 580328d14b8..00000000000
--- a/tests/corelib_2/regexp/standalones_test.dart
+++ /dev/null
@@ -1,86 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2008 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  /* Many of the Mozilla regexp tests used 'toSource' to test their
-  * results.  Since we don't currently support toSource, those tests
-  * are disabled and standalone versions are included here.
-  */
-
-  // Tests from ecma_3/RegExp/regress-78156.js
-  var string = 'aaa\n789\r\nccc\r\n345';
-  var pattern = new RegExp(r"^\d", multiLine: true);
-  var resultList = pattern.allMatches(string).toList();
-  assertEquals(2, resultList.length, "1");
-  assertEquals('7', resultList[0].group(0), "2");
-  assertEquals('3', resultList[1].group(0), "3");
-
-  pattern = new RegExp(r"\d$", multiLine: true);
-  resultList = pattern.allMatches(string).toList();
-  assertEquals(2, resultList.length, "4");
-  assertEquals('9', resultList[0].group(0), "5");
-  assertEquals('5', resultList[1].group(0), "6");
-
-  string = 'aaa\n789\r\nccc\r\nddd';
-  pattern = new RegExp(r"^\d", multiLine: true);
-  resultList = pattern.allMatches(string).toList();
-  assertEquals(1, resultList.length, "7");
-  assertEquals('7', resultList[0].group(0), "8");
-
-  pattern = new RegExp(r"\d$", multiLine: true);
-  resultList = pattern.allMatches(string).toList();
-  assertEquals(1, resultList.length, "9");
-  assertEquals('9', resultList[0].group(0), "10");
-
-  // Tests from ecma_3/RegExp/regress-72964.js
-  pattern = new RegExp(r"[\S]+");
-  string = '\u00BF\u00CD\u00BB\u00A7';
-  var resultMatch = pattern.firstMatch(string);
-  assertEquals(1, resultMatch.groupCount + 1, "11");
-  assertEquals(string, resultMatch.group(0), "12");
-
-  string = '\u00BF\u00CD \u00BB\u00A7';
-  resultMatch = pattern.firstMatch(string);
-  assertEquals(1, resultMatch.groupCount + 1, "13");
-  assertEquals('\u00BF\u00CD', resultMatch.group(0), "14");
-
-  string = '\u4e00\uac00\u4e03\u4e00';
-  resultMatch = pattern.firstMatch(string);
-  assertEquals(1, resultMatch.groupCount + 1, "15");
-  assertEquals(string, resultMatch.group(0), "16");
-
-  string = '\u4e00\uac00 \u4e03\u4e00';
-  resultMatch = pattern.firstMatch(string);
-  assertEquals(1, resultMatch.groupCount + 1, "17");
-  assertEquals('\u4e00\uac00', resultMatch.group(0), "18");
-}
diff --git a/tests/corelib_2/regexp/toString_test.dart b/tests/corelib_2/regexp/toString_test.dart
deleted file mode 100644
index d08bbfa5799..00000000000
--- a/tests/corelib_2/regexp/toString_test.dart
+++ /dev/null
@@ -1,70 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  dynamic testForwardSlash(pattern, _string) {
-    var string = _string;
-
-    var re1 = new RegExp(pattern);
-
-    return re1.hasMatch(string);
-  }
-
-  dynamic testLineTerminator(pattern) {
-    var re1 = new RegExp(pattern);
-
-    return new RegExp(r"\n|\r|\u2028|\u2029").hasMatch(re1.toString());
-  }
-
-  // These strings are equivalent, since the '\' is identity escaping the '/' at the string level.
-  shouldBeTrue(testForwardSlash("^/\$", "/"));
-  shouldBeTrue(testForwardSlash("^\/\$", "/"));
-  // This string passes "^\/$" to the RegExp, so the '/' is escaped in the re!
-  shouldBeTrue(testForwardSlash("^\\/\$", "/"));
-  // These strings pass "^\\/$" and "^\\\/$" respectively to the RegExp, giving one '\' to match.
-  shouldBeTrue(testForwardSlash("^\\\\/\$", "\\/"));
-  shouldBeTrue(testForwardSlash("^\\\\\\/\$", "\\/"));
-  // These strings match two backslashes (the second with the '/' escaped).
-  shouldBeTrue(testForwardSlash("^\\\\\\\\/\$", "\\\\/"));
-  shouldBeTrue(testForwardSlash("^\\\\\\\\\\/\$", "\\\\/"));
-  // Test that nothing goes wrongif there are multiple forward slashes!
-  shouldBeTrue(testForwardSlash("x/x/x", "x/x/x"));
-  shouldBeTrue(testForwardSlash("x\\/x/x", "x/x/x"));
-  shouldBeTrue(testForwardSlash("x/x\\/x", "x/x/x"));
-  shouldBeTrue(testForwardSlash("x\\/x\\/x", "x/x/x"));
-
-  shouldBeFalse(testLineTerminator("\\n"));
-  shouldBeFalse(testLineTerminator("\\\\n"));
-  shouldBeFalse(testLineTerminator("\\r"));
-  shouldBeFalse(testLineTerminator("\\\\r"));
-  shouldBeFalse(testLineTerminator("\\u2028"));
-  shouldBeFalse(testLineTerminator("\\\\u2028"));
-  shouldBeFalse(testLineTerminator("\\u2029"));
-  shouldBeFalse(testLineTerminator("\\\\u2029"));
-}
diff --git a/tests/corelib_2/regexp/unicode-character-ranges_test.dart b/tests/corelib_2/regexp/unicode-character-ranges_test.dart
deleted file mode 100644
index e3867e59b44..00000000000
--- a/tests/corelib_2/regexp/unicode-character-ranges_test.dart
+++ /dev/null
@@ -1,162 +0,0 @@
-// Copyright (c) 2019, the Dart project authors. All rights reserved.
-// Copyright 2011 the V8 project authors. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'v8_regexp_utils.dart';
-
-void execl(List<String> expectation, RegExp re, String subject) {
-  shouldBe(re.firstMatch(subject), expectation);
-}
-
-void execs(List<String> expectation, String pattern, String subject) {
-  final re = RegExp(pattern, unicode: true);
-  shouldBe(re.firstMatch(subject), expectation);
-}
-
-void main() {
-  // Character ranges.
-  execs(["A"], r"[A-D]", "A");
-  execs(["ABCD"], r"[A-D]+", "ZABCDEF");
-
-  execs(["\u{12345}"], r"[\u1234-\u{12345}]", "\u{12345}");
-  execs(null, r"[^\u1234-\u{12345}]", "\u{12345}");
-
-  execs(["\u{1234}"], r"[\u1234-\u{12345}]", "\u{1234}");
-  execs(null, r"[^\u1234-\u{12345}]", "\u{1234}");
-
-  execs(null, r"[\u1234-\u{12345}]", "\u{1233}");
-  execs(["\u{1233}"], r"[^\u1234-\u{12345}]", "\u{1233}");
-
-  execs(["\u{12346}"], r"[^\u1234-\u{12345}]", "\u{12346}");
-  execs(null, r"[\u1234-\u{12345}]", "\u{12346}");
-
-  execs(["\u{12342}"], r"[\u{12340}-\u{12345}]", "\u{12342}");
-  execs(["\u{12342}"], r"[\ud808\udf40-\ud808\udf45]", "\u{12342}");
-  execs(null, r"[^\u{12340}-\u{12345}]", "\u{12342}");
-  execs(null, r"[^\ud808\udf40-\ud808\udf45]", "\u{12342}");
-
-  execs(["\u{ffff}"], r"[\u{ff80}-\u{12345}]", "\u{ffff}");
-  execs(["\u{ffff}"], r"[\u{ff80}-\ud808\udf45]", "\u{ffff}");
-  execs(null, r"[^\u{ff80}-\u{12345}]", "\u{ffff}");
-  execs(null, r"[^\u{ff80}-\ud808\udf45]", "\u{ffff}");
-
-  // Lone surrogate
-  execs(["\udc00"], r"[^\u{ff80}-\u{12345}]", "\uff99\u{dc00}A");
-  execs(["\udc01"], r"[\u0100-\u{10ffff}]", "A\udc01");
-  execs(["\udc03"], r"[\udc01-\udc03]", "\ud801\udc02\udc03");
-  execs(["\ud801"], r"[\ud801-\ud803]", "\ud802\udc01\ud801");
-
-  // Paired surrogate.
-  execs(null, r"[^\u{ff80}-\u{12345}]", "\u{d800}\u{dc00}");
-  execs(["\ud800\udc00"], r"[\u{ff80}-\u{12345}]", "\u{d800}\u{dc00}");
-  execs(["foo\u{10e6d}bar"], r"foo\ud803\ude6dbar", "foo\u{10e6d}bar");
-
-  // Lone surrogates
-  execs(["\ud801\ud801"], r"\ud801+", "\ud801\udc01\ud801\ud801");
-  execs(["\udc01\udc01"], r"\udc01+", "\ud801\ud801\udc01\udc01\udc01");
-
-  execs(["\udc02\udc03A"], r"\W\WA", "\ud801\udc01A\udc02\udc03A");
-  execs(["\ud801\ud802"], r"\ud801.", "\ud801\udc01\ud801\ud802");
-  execs(["\udc02\udc03A"], r"[\ud800-\udfff][\ud800-\udfff]A",
-      "\ud801\udc01A\udc02\udc03A");
-
-  // Character classes
-  execs(null, r"\w", "\ud801\udc01");
-  execl(["\ud801"], RegExp(r"[^\w]"), "\ud801\udc01");
-  execs(["\ud801\udc01"], r"[^\w]", "\ud801\udc01");
-  execl(["\ud801"], RegExp(r"\W"), "\ud801\udc01");
-  execs(["\ud801\udc01"], r"\W", "\ud801\udc01");
-
-  execs(["\ud800X"], r".X", "\ud800XaX");
-  execs(["aX"], r".(?<!\ud800)X", "\ud800XaX");
-  execs(["aX"], r".(?<![\ud800-\ud900])X", "\ud800XaX");
-
-  execs(null, r"[]", "\u1234");
-  execs(["0abc"], r"[^]abc", "0abc");
-  execs(["\u1234abc"], r"[^]abc", "\u1234abc");
-  execs(["\u{12345}abc"], r"[^]abc", "\u{12345}abc");
-
-  execs(null, r"[\u{0}-\u{1F444}]", "\ud83d\udfff");
-
-  // Backward matches of lone surrogates.
-  execs(["B", "\ud803A"], r"(?<=([\ud800-\ud900]A))B",
-      "\ud801\udc00AB\udc00AB\ud802\ud803AB");
-  execs(["B", "\udc00A"], r"(?<=([\ud800-\u{10300}]A))B",
-      "\ud801\udc00AB\udc00AB\ud802\ud803AB");
-  execs(["B", "\udc11A"], r"(?<=([\udc00-\udd00]A))B",
-      "\ud801\udc00AB\udc11AB\ud802\ud803AB");
-  execs(["X", "\ud800C"], r"(?<=(\ud800\w))X",
-      "\ud800\udc00AX\udc11BX\ud800\ud800CX");
-  execs(["C", "\ud800\ud800"], r"(?<=(\ud800.))\w",
-      "\ud800\udc00AX\udc11BX\ud800\ud800CX");
-  execs(["X", "\udc01C"], r"(?<=(\udc01\w))X",
-      "\ud800\udc01AX\udc11BX\udc01\udc01CX");
-  execs(["C", "\udc01\udc01"], r"(?<=(\udc01.)).",
-      "\ud800\udc01AX\udc11BX\udc01\udc01CX");
-
-  const L = "\ud800";
-  const T = "\udc00";
-  const X = "X";
-
-  // Test string contains only match.
-  void testw(bool expect, String src, String subject) {
-    var re = RegExp(r"^" + src + r"$", unicode: true);
-    assertEquals(expect, re.hasMatch(subject));
-  }
-
-  // Test string starts with match.
-  void tests(bool expect, String src, String subject) {
-    var re = RegExp(r"^" + src, unicode: true);
-    assertEquals(expect, re.hasMatch(subject));
-  }
-
-  testw(true, X, X);
-  testw(true, L, L);
-  testw(true, T, T);
-  testw(true, L + T, L + T);
-  testw(true, T + L, T + L);
-  testw(false, T, L + T);
-  testw(false, L, L + T);
-  testw(true, r".(?<=" + L + r")", L);
-  testw(true, r".(?<=" + T + r")", T);
-  testw(true, r".(?<=" + L + T + r")", L + T);
-  testw(true, r".(?<=" + L + T + r")", L + T);
-  tests(true, r".(?<=" + T + r")", T + L);
-  tests(false, r".(?<=" + L + r")", L + T);
-  tests(false, r".(?<=" + T + r")", L + T);
-  tests(true, r"..(?<=" + T + r")", T + T + L);
-  tests(true, r"..(?<=" + T + r")", X + T + L);
-  tests(true, r"...(?<=" + L + r")", X + T + L);
-  tests(false, r"...(?<=" + T + r")", X + L + T);
-  tests(true, r"..(?<=" + L + T + r")", X + L + T);
-  tests(true, r"..(?<=" + L + T + r"(?<=" + L + T + r"))", X + L + T);
-  tests(false, r"..(?<=" + L + r"(" + T + r"))", X + L + T);
-  tests(false, r".*" + L, X + L + T);
-  tests(true, r".*" + L, X + L + L + T);
-  tests(false, r".*" + L, X + L + T + L + T);
-  tests(false, r".*" + T, X + L + T + L + T);
-  tests(true, r".*" + T, X + L + T + T + L + T);
-}
diff --git a/tests/corelib_2/regexp/unicode-escapes-in-regexps_test.dart b/tests/corelib_2/regexp/unicode-escapes-in-regexps_test.dart
deleted file mode 100644
index 5fe7d193348..00000000000
--- a/tests/corelib_2/regexp/unicode-escapes-in-regexps_test.dart
+++ /dev/null
@@ -1,309 +0,0 @@
-// Copyright (c) 2019, the Dart project authors. All rights reserved.
-// Copyright 2014 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//
-// ES6 extends the \uxxxx escape and also allows \u{xxxxx}.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'v8_regexp_utils.dart';
-
-void testRegExpHelper(RegExp r) {
-  assertTrue(r.hasMatch("foo"));
-  assertTrue(r.hasMatch("boo"));
-  assertFalse(r.hasMatch("moo"));
-}
-
-void TestUnicodeEscapes() {
-  testRegExpHelper(RegExp(r"(\u0066|\u0062)oo"));
-  testRegExpHelper(RegExp(r"(\u0066|\u0062)oo", unicode: true));
-  testRegExpHelper(RegExp(r"(\u{0066}|\u{0062})oo", unicode: true));
-  testRegExpHelper(RegExp(r"(\u{66}|\u{000062})oo", unicode: true));
-
-  // Note that we need \\ inside a string, otherwise it's interpreted as a
-  // unicode escape inside a string.
-  testRegExpHelper(RegExp("(\\u0066|\\u0062)oo"));
-  testRegExpHelper(RegExp("(\\u0066|\\u0062)oo", unicode: true));
-  testRegExpHelper(RegExp("(\\u{0066}|\\u{0062})oo", unicode: true));
-  testRegExpHelper(RegExp("(\\u{66}|\\u{000062})oo", unicode: true));
-
-  // Though, unicode escapes via strings should work too.
-  testRegExpHelper(RegExp("(\u0066|\u0062)oo"));
-  testRegExpHelper(RegExp("(\u0066|\u0062)oo", unicode: true));
-  testRegExpHelper(RegExp("(\u{0066}|\u{0062})oo", unicode: true));
-  testRegExpHelper(RegExp("(\u{66}|\u{000062})oo", unicode: true));
-}
-
-void TestUnicodeEscapesInCharacterClasses() {
-  testRegExpHelper(RegExp(r"[\u0062-\u0066]oo"));
-  testRegExpHelper(RegExp(r"[\u0062-\u0066]oo", unicode: true));
-  testRegExpHelper(RegExp(r"[\u{0062}-\u{0066}]oo", unicode: true));
-  testRegExpHelper(RegExp(r"[\u{62}-\u{000066}]oo", unicode: true));
-
-  // Note that we need \\ inside a string, otherwise it's interpreted as a
-  // unicode escape inside a string.
-  testRegExpHelper(RegExp("[\\u0062-\\u0066]oo"));
-  testRegExpHelper(RegExp("[\\u0062-\\u0066]oo", unicode: true));
-  testRegExpHelper(RegExp("[\\u{0062}-\\u{0066}]oo", unicode: true));
-  testRegExpHelper(RegExp("[\\u{62}-\\u{000066}]oo", unicode: true));
-
-  // Though, unicode escapes via strings should work too.
-  testRegExpHelper(RegExp("[\u0062-\u0066]oo"));
-  testRegExpHelper(RegExp("[\u0062-\u0066]oo", unicode: true));
-  testRegExpHelper(RegExp("[\u{0062}-\u{0066}]oo", unicode: true));
-  testRegExpHelper(RegExp("[\u{62}-\u{000066}]oo", unicode: true));
-}
-
-void TestBraceEscapesWithoutUnicodeFlag() {
-  // \u followed by illegal escape will be parsed as u. {x} will be the
-  // character count.
-  void helper1(RegExp r) {
-    assertFalse(r.hasMatch("fbar"));
-    assertFalse(r.hasMatch("fubar"));
-    assertTrue(r.hasMatch("fuubar"));
-    assertFalse(r.hasMatch("fuuubar"));
-  }
-
-  helper1(RegExp(r"f\u{2}bar"));
-  helper1(RegExp("f\\u{2}bar"));
-
-  void helper2(RegExp r) {
-    assertFalse(r.hasMatch("fbar"));
-    assertTrue(r.hasMatch("fubar"));
-    assertTrue(r.hasMatch("fuubar"));
-    assertFalse(r.hasMatch("fuuubar"));
-  }
-
-  helper2(RegExp(r"f\u{1,2}bar"));
-  helper2(RegExp("f\\u{1,2}bar"));
-
-  void helper3(RegExp r) {
-    assertTrue(r.hasMatch("u"));
-    assertTrue(r.hasMatch("{"));
-    assertTrue(r.hasMatch("2"));
-    assertTrue(r.hasMatch("}"));
-    assertFalse(r.hasMatch("q"));
-    assertFalse(r.hasMatch("("));
-    assertFalse(r.hasMatch(")"));
-  }
-
-  helper3(RegExp(r"[\u{2}]"));
-  helper3(RegExp("[\\u{2}]"));
-}
-
-void TestInvalidEscapes() {
-  // Without the u flag, invalid unicode escapes and other invalid escapes are
-  // treated as identity escapes.
-  void helper1(RegExp r) {
-    assertTrue(r.hasMatch("firstuxz89second"));
-  }
-
-  helper1(RegExp(r"first\u\x\z\8\9second"));
-  helper1(RegExp("first\\u\\x\\z\\8\\9second"));
-
-  void helper2(RegExp r) {
-    assertTrue(r.hasMatch("u"));
-    assertTrue(r.hasMatch("x"));
-    assertTrue(r.hasMatch("z"));
-    assertTrue(r.hasMatch("8"));
-    assertTrue(r.hasMatch("9"));
-    assertFalse(r.hasMatch("q"));
-    assertFalse(r.hasMatch("7"));
-  }
-
-  helper2(RegExp(r"[\u\x\z\8\9]"));
-  helper2(RegExp("[\\u\\x\\z\\8\\9]"));
-
-  // However, with the u flag, these are treated as invalid escapes.
-  assertThrows(() => RegExp(r"\u", unicode: true));
-  assertThrows(() => RegExp(r"\u12", unicode: true));
-  assertThrows(() => RegExp(r"\ufoo", unicode: true));
-  assertThrows(() => RegExp(r"\x", unicode: true));
-  assertThrows(() => RegExp(r"\xfoo", unicode: true));
-  assertThrows(() => RegExp(r"\z", unicode: true));
-  assertThrows(() => RegExp(r"\8", unicode: true));
-  assertThrows(() => RegExp(r"\9", unicode: true));
-
-  assertThrows(() => RegExp("\\u", unicode: true));
-  assertThrows(() => RegExp("\\u12", unicode: true));
-  assertThrows(() => RegExp("\\ufoo", unicode: true));
-  assertThrows(() => RegExp("\\x", unicode: true));
-  assertThrows(() => RegExp("\\xfoo", unicode: true));
-  assertThrows(() => RegExp("\\z", unicode: true));
-  assertThrows(() => RegExp("\\8", unicode: true));
-  assertThrows(() => RegExp("\\9", unicode: true));
-}
-
-void TestTooBigHexEscape() {
-  // The hex number inside \u{} has a maximum value.
-  RegExp(r"\u{10ffff}", unicode: true);
-  RegExp("\\u{10ffff}", unicode: true);
-  assertThrows(() => RegExp(r"\u{110000}", unicode: true));
-  assertThrows(() => RegExp("\\u{110000}", unicode: true));
-
-  // Without the u flag, they're of course fine ({x} is the count).
-  RegExp(r"\u{110000}");
-  RegExp("\\u{110000}");
-}
-
-void TestSyntaxEscapes() {
-  // Syntax escapes work the same with or without the u flag.
-  void helper(RegExp r) {
-    assertTrue(r.hasMatch("foo[bar"));
-    assertFalse(r.hasMatch("foo]bar"));
-  }
-
-  helper(RegExp(r"foo\[bar"));
-  helper(RegExp("foo\\[bar"));
-  helper(RegExp(r"foo\[bar", unicode: true));
-  helper(RegExp("foo\\[bar", unicode: true));
-}
-
-void TestUnicodeSurrogates() {
-  // U+10E6D corresponds to the surrogate pair [U+D803, U+DE6D].
-  void helper(RegExp r) {
-    assertTrue(r.hasMatch("foo\u{10e6d}bar"));
-  }
-
-  helper(RegExp(r"foo\ud803\ude6dbar", unicode: true));
-  helper(RegExp("foo\\ud803\\ude6dbar", unicode: true));
-}
-
-void main() {
-  TestUnicodeEscapes();
-  TestUnicodeEscapesInCharacterClasses();
-  TestBraceEscapesWithoutUnicodeFlag();
-  TestInvalidEscapes();
-  TestTooBigHexEscape();
-  TestSyntaxEscapes();
-  TestUnicodeSurrogates();
-
-  // Non-BMP patterns.
-  // Single character atom.
-  assertTrue(RegExp("\u{12345}", unicode: true).hasMatch("\u{12345}"));
-  assertTrue(RegExp(r"\u{12345}", unicode: true).hasMatch("\u{12345}"));
-  assertTrue(RegExp(r"\u{12345}", unicode: true).hasMatch("\ud808\udf45"));
-  assertTrue(RegExp(r"\u{12345}", unicode: true).hasMatch("\ud808\udf45"));
-  assertFalse(RegExp(r"\u{12345}", unicode: true).hasMatch("\udf45"));
-  assertFalse(RegExp(r"\u{12345}", unicode: true).hasMatch("\udf45"));
-
-  // Multi-character atom.
-  assertTrue(RegExp(r"\u{12345}\u{23456}", unicode: true)
-      .hasMatch("a\u{12345}\u{23456}b"));
-  assertTrue(RegExp(r"\u{12345}\u{23456}", unicode: true)
-      .hasMatch("b\u{12345}\u{23456}c"));
-  assertFalse(RegExp(r"\u{12345}\u{23456}", unicode: true)
-      .hasMatch("a\udf45\u{23456}b"));
-  assertFalse(RegExp(r"\u{12345}\u{23456}", unicode: true)
-      .hasMatch("b\udf45\u{23456}c"));
-
-  // Disjunction.
-  assertTrue(RegExp(r"\u{12345}(?:\u{23456})", unicode: true)
-      .hasMatch("a\u{12345}\u{23456}b"));
-  assertTrue(RegExp(r"\u{12345}(?:\u{23456})", unicode: true)
-      .hasMatch("b\u{12345}\u{23456}c"));
-  assertFalse(RegExp(r"\u{12345}(?:\u{23456})", unicode: true)
-      .hasMatch("a\udf45\u{23456}b"));
-  assertFalse(RegExp(r"\u{12345}(?:\u{23456})", unicode: true)
-      .hasMatch("b\udf45\u{23456}c"));
-
-  // Alternative.
-  assertTrue(
-      RegExp(r"\u{12345}|\u{23456}", unicode: true).hasMatch("a\u{12345}b"));
-  assertTrue(
-      RegExp(r"\u{12345}|\u{23456}", unicode: true).hasMatch("b\u{23456}c"));
-  assertFalse(
-      RegExp(r"\u{12345}|\u{23456}", unicode: true).hasMatch("a\udf45\ud84db"));
-  assertFalse(
-      RegExp(r"\u{12345}|\u{23456}", unicode: true).hasMatch("b\udf45\ud808c"));
-
-  // Capture.
-  assertTrue(RegExp("(\u{12345}|\u{23456}).\\1", unicode: true)
-      .hasMatch("\u{12345}b\u{12345}"));
-  assertTrue(RegExp(r"(\u{12345}|\u{23456}).\1", unicode: true)
-      .hasMatch("\u{12345}b\u{12345}"));
-  assertFalse(RegExp("(\u{12345}|\u{23456}).\\1", unicode: true)
-      .hasMatch("\u{12345}b\u{23456}"));
-  assertFalse(RegExp(r"(\u{12345}|\u{23456}).\1", unicode: true)
-      .hasMatch("\u{12345}b\u{23456}"));
-
-  // Quantifier.
-  assertTrue(RegExp("\u{12345}{3}", unicode: true)
-      .hasMatch("\u{12345}\u{12345}\u{12345}"));
-  assertTrue(RegExp(r"\u{12345}{3}", unicode: true)
-      .hasMatch("\u{12345}\u{12345}\u{12345}"));
-  assertTrue(RegExp("\u{12345}{3}").hasMatch("\u{12345}\udf45\udf45"));
-  assertFalse(RegExp(r"\ud808\udf45{3}", unicode: true)
-      .hasMatch("\u{12345}\udf45\udf45"));
-  assertTrue(RegExp(r"\ud808\udf45{3}", unicode: true)
-      .hasMatch("\u{12345}\u{12345}\u{12345}"));
-  assertFalse(
-      RegExp("\u{12345}{3}", unicode: true).hasMatch("\u{12345}\udf45\udf45"));
-  assertFalse(
-      RegExp(r"\u{12345}{3}", unicode: true).hasMatch("\u{12345}\udf45\udf45"));
-
-  // Literal surrogates.
-  shouldBe(
-      RegExp("\ud800\udc00+", unicode: true).firstMatch("\u{10000}\u{10000}"),
-      ["\u{10000}\u{10000}"]);
-  shouldBe(
-      RegExp("\\ud800\\udc00+", unicode: true).firstMatch("\u{10000}\u{10000}"),
-      ["\u{10000}\u{10000}"]);
-
-  shouldBe(
-      RegExp("[\\ud800\\udc03-\\ud900\\udc01\]+", unicode: true)
-          .firstMatch("\u{10003}\u{50001}"),
-      ["\u{10003}\u{50001}"]);
-  shouldBe(
-      RegExp("[\ud800\udc03-\u{50001}\]+", unicode: true)
-          .firstMatch("\u{10003}\u{50001}"),
-      ["\u{10003}\u{50001}"]);
-
-  // Unicode escape sequences to represent a non-BMP character cannot have
-  // mixed notation, and must follow the rules for RegExpUnicodeEscapeSequence.
-  assertThrows(() => RegExp("[\\ud800\udc03-\ud900\\udc01\]+", unicode: true));
-  assertNull(
-      RegExp("\\ud800\udc00+", unicode: true).firstMatch("\u{10000}\u{10000}"));
-  assertNull(
-      RegExp("\ud800\\udc00+", unicode: true).firstMatch("\u{10000}\u{10000}"));
-
-  assertNull(RegExp("[\\ud800\udc00]", unicode: true).firstMatch("\u{10000}"));
-  assertNull(
-      RegExp("[\\{ud800}\udc00]", unicode: true).firstMatch("\u{10000}"));
-  assertNull(RegExp("[\ud800\\udc00]", unicode: true).firstMatch("\u{10000}"));
-  assertNull(
-      RegExp("[\ud800\\{udc00}]", unicode: true).firstMatch("\u{10000}"));
-
-  assertNull(RegExp(r"\u{d800}\u{dc00}+", unicode: true)
-      .firstMatch("\ud800\udc00\udc00"));
-  assertNull(RegExp(r"\ud800\u{dc00}+", unicode: true)
-      .firstMatch("\ud800\udc00\udc00"));
-  assertNull(RegExp(r"\u{d800}\udc00+", unicode: true)
-      .firstMatch("\ud800\udc00\udc00"));
-}
diff --git a/tests/corelib_2/regexp/unicode-handling_test.dart b/tests/corelib_2/regexp/unicode-handling_test.dart
deleted file mode 100644
index d1a1f15dd33..00000000000
--- a/tests/corelib_2/regexp/unicode-handling_test.dart
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description(
-      'Test for proper handling of Unicode RegExps and <a href="http://bugzilla.webkit.org/show_bug.cgi?id=7445">bug 7445</a>: Gmail puts wrong subject in replies.');
-
-  // Regex to match Re in various languages straight from Gmail source
-  var I3 = new RegExp(
-      r"^\s*(fwd|re|aw|antw|antwort|wg|sv|ang|odp|betreff|betr|transf|reenv\.|reenv|in|res|resp|resp\.|enc|\u8f6c\u53d1|\u56DE\u590D|\u041F\u0435\u0440\u0435\u0441\u043B|\u041E\u0442\u0432\u0435\u0442):\s*(.*)$",
-      caseSensitive: false);
-
-  // Other RegExs from Gmail source
-  var Ci = new RegExp(r"\s+");
-  var BC = new RegExp(r"^ ");
-  var BG = new RegExp(r" $");
-
-  // This function replaces consecutive whitespace with a single space
-  // then removes a leading and trailing space if they exist. (From Gmail)
-  dynamic Gn(a) {
-    return a.replaceAll(Ci, " ").replaceAll(BC, "").replaceAll(BG, "");
-  }
-
-  // Strips leading Re or similar (from Gmail source)
-  dynamic cy(a) {
-    //var b = I3.firstMatch(a);
-    var b = I3.firstMatch(a);
-
-    if (b != null) {
-      a = b.group(2);
-    }
-
-    return Gn(a);
-  }
-
-  assertEquals(cy('Re: Moose'), 'Moose');
-  assertEquals(cy('\u8f6c\u53d1: Moose'), 'Moose');
-
-  // Test handling of \u2820 (skull and crossbones)
-  var sample = "sample bm\u2820p cm\\u2820p";
-
-  var inlineRe = new RegExp(r".m\u2820p");
-  assertEquals(inlineRe.firstMatch(sample).group(0), 'bm\u2820p');
-
-  // Test handling of \u007c "|"
-  var bsample = "sample bm\u007cp cm\\u007cp";
-
-  var binlineRe = new RegExp(r".m\u007cp");
-
-  assertEquals(binlineRe.firstMatch(bsample).group(0), 'bm|p');
-}
diff --git a/tests/corelib_2/regexp/unicode-property-binary_test.dart b/tests/corelib_2/regexp/unicode-property-binary_test.dart
deleted file mode 100644
index 8580fd387da..00000000000
--- a/tests/corelib_2/regexp/unicode-property-binary_test.dart
+++ /dev/null
@@ -1,203 +0,0 @@
-// Copyright (c) 2019, the Dart project authors. All rights reserved.
-// Copyright 2016 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'v8_regexp_utils.dart';
-
-void main() {
-  void t(RegExp re, String s) {
-    assertTrue(re.hasMatch(s));
-  }
-
-  void f(RegExp re, String s) {
-    assertFalse(re.hasMatch(s));
-  }
-
-  assertThrows(() => RegExp("\\p{Hiragana}", unicode: true));
-  assertThrows(() => RegExp("\\p{Bidi_Class}", unicode: true));
-  assertThrows(() => RegExp("\\p{Bidi_C=False}", unicode: true));
-  assertThrows(() => RegExp("\\P{Bidi_Control=Y}", unicode: true));
-  assertThrows(() => RegExp("\\p{AHex=Yes}", unicode: true));
-
-  assertThrows(() => RegExp("\\p{Composition_Exclusion}", unicode: true));
-  assertThrows(() => RegExp("\\p{CE}", unicode: true));
-  assertThrows(() => RegExp("\\p{Full_Composition_Exclusion}", unicode: true));
-  assertThrows(() => RegExp("\\p{Comp_Ex}", unicode: true));
-  assertThrows(() => RegExp("\\p{Grapheme_Link}", unicode: true));
-  assertThrows(() => RegExp("\\p{Gr_Link}", unicode: true));
-  assertThrows(() => RegExp("\\p{Hyphen}", unicode: true));
-  assertThrows(() => RegExp("\\p{NFD_Inert}", unicode: true));
-  assertThrows(() => RegExp("\\p{NFDK_Inert}", unicode: true));
-  assertThrows(() => RegExp("\\p{NFC_Inert}", unicode: true));
-  assertThrows(() => RegExp("\\p{NFKC_Inert}", unicode: true));
-  assertThrows(() => RegExp("\\p{Segment_Starter}", unicode: true));
-
-  t(RegExp(r"\p{Alphabetic}", unicode: true), "æ");
-  f(RegExp(r"\p{Alpha}", unicode: true), "1");
-
-  t(RegExp(r"\p{ASCII_Hex_Digit}", unicode: true), "f");
-  f(RegExp(r"\p{AHex}", unicode: true), "g");
-
-  t(RegExp(r"\p{Bidi_Control}", unicode: true), "\u200e");
-  f(RegExp(r"\p{Bidi_C}", unicode: true), "g");
-
-  t(RegExp(r"\p{Bidi_Mirrored}", unicode: true), "(");
-  f(RegExp(r"\p{Bidi_M}", unicode: true), "-");
-
-  t(RegExp(r"\p{Case_Ignorable}", unicode: true), "\u02b0");
-  f(RegExp(r"\p{CI}", unicode: true), "a");
-
-  t(RegExp(r"\p{Changes_When_Casefolded}", unicode: true), "B");
-  f(RegExp(r"\p{CWCF}", unicode: true), "1");
-
-  t(RegExp(r"\p{Changes_When_Casemapped}", unicode: true), "b");
-  f(RegExp(r"\p{CWCM}", unicode: true), "1");
-
-  t(RegExp(r"\p{Changes_When_Lowercased}", unicode: true), "B");
-  f(RegExp(r"\p{CWL}", unicode: true), "1");
-
-  t(RegExp(r"\p{Changes_When_Titlecased}", unicode: true), "b");
-  f(RegExp(r"\p{CWT}", unicode: true), "1");
-
-  t(RegExp(r"\p{Changes_When_Uppercased}", unicode: true), "b");
-  f(RegExp(r"\p{CWU}", unicode: true), "1");
-
-  t(RegExp(r"\p{Dash}", unicode: true), "-");
-  f(RegExp(r"\p{Dash}", unicode: true), "1");
-
-  t(RegExp(r"\p{Default_Ignorable_Code_Point}", unicode: true), "\u00ad");
-  f(RegExp(r"\p{DI}", unicode: true), "1");
-
-  t(RegExp(r"\p{Deprecated}", unicode: true), "\u17a3");
-  f(RegExp(r"\p{Dep}", unicode: true), "1");
-
-  t(RegExp(r"\p{Diacritic}", unicode: true), "\u0301");
-  f(RegExp(r"\p{Dia}", unicode: true), "1");
-
-  t(RegExp(r"\p{Emoji}", unicode: true), "\u2603");
-  f(RegExp(r"\p{Emoji}", unicode: true), "x");
-
-  t(RegExp(r"\p{Emoji_Component}", unicode: true), "\u{1F1E6}");
-  f(RegExp(r"\p{Emoji_Component}", unicode: true), "x");
-
-  t(RegExp(r"\p{Emoji_Modifier_Base}", unicode: true), "\u{1F6CC}");
-  f(RegExp(r"\p{Emoji_Modifier_Base}", unicode: true), "x");
-
-  t(RegExp(r"\p{Emoji_Modifier}", unicode: true), "\u{1F3FE}");
-  f(RegExp(r"\p{Emoji_Modifier}", unicode: true), "x");
-
-  t(RegExp(r"\p{Emoji_Presentation}", unicode: true), "\u{1F308}");
-  f(RegExp(r"\p{Emoji_Presentation}", unicode: true), "x");
-
-  t(RegExp(r"\p{Extender}", unicode: true), "\u3005");
-  f(RegExp(r"\p{Ext}", unicode: true), "x");
-
-  t(RegExp(r"\p{Grapheme_Base}", unicode: true), " ");
-  f(RegExp(r"\p{Gr_Base}", unicode: true), "\u0010");
-
-  t(RegExp(r"\p{Grapheme_Extend}", unicode: true), "\u0300");
-  f(RegExp(r"\p{Gr_Ext}", unicode: true), "x");
-
-  t(RegExp(r"\p{Hex_Digit}", unicode: true), "a");
-  f(RegExp(r"\p{Hex}", unicode: true), "g");
-
-  t(RegExp(r"\p{ID_Continue}", unicode: true), "1");
-  f(RegExp(r"\p{IDC}", unicode: true), ".");
-
-  t(RegExp(r"\p{ID_Start}", unicode: true), "a");
-  f(RegExp(r"\p{IDS}", unicode: true), "1");
-
-  t(RegExp(r"\p{Ideographic}", unicode: true), "漢");
-  f(RegExp(r"\p{Ideo}", unicode: true), "H");
-
-  t(RegExp(r"\p{IDS_Binary_Operator}", unicode: true), "\u2FF0");
-  f(RegExp(r"\p{IDSB}", unicode: true), "a");
-
-  t(RegExp(r"\p{IDS_Trinary_Operator}", unicode: true), "\u2FF2");
-  f(RegExp(r"\p{IDST}", unicode: true), "a");
-
-  t(RegExp(r"\p{Join_Control}", unicode: true), "\u200c");
-  f(RegExp(r"\p{Join_C}", unicode: true), "a");
-
-  t(RegExp(r"\p{Logical_Order_Exception}", unicode: true), "\u0e40");
-  f(RegExp(r"\p{LOE}", unicode: true), "a");
-
-  t(RegExp(r"\p{Lowercase}", unicode: true), "a");
-  f(RegExp(r"\p{Lower}", unicode: true), "A");
-
-  t(RegExp(r"\p{Math}", unicode: true), "=");
-  f(RegExp(r"\p{Math}", unicode: true), "A");
-
-  t(RegExp(r"\p{Noncharacter_Code_Point}", unicode: true), "\uFDD0");
-  f(RegExp(r"\p{NChar}", unicode: true), "A");
-
-  t(RegExp(r"\p{Pattern_Syntax}", unicode: true), "\u0021");
-  f(RegExp(r"\p{NChar}", unicode: true), "A");
-
-  t(RegExp(r"\p{Pattern_White_Space}", unicode: true), "\u0009");
-  f(RegExp(r"\p{Pat_Syn}", unicode: true), "A");
-
-  t(RegExp(r"\p{Quotation_Mark}", unicode: true), "'");
-  f(RegExp(r"\p{QMark}", unicode: true), "A");
-
-  t(RegExp(r"\p{Radical}", unicode: true), "\u2FAD");
-  f(RegExp(r"\p{Radical}", unicode: true), "A");
-
-  t(RegExp(r"\p{Regional_Indicator}", unicode: true), "\u{1F1E6}");
-  f(RegExp(r"\p{Regional_Indicator}", unicode: true), "A");
-
-  t(RegExp(r"\p{Sentence_Terminal}", unicode: true), "!");
-  f(RegExp(r"\p{STerm}", unicode: true), "A");
-
-  t(RegExp(r"\p{Soft_Dotted}", unicode: true), "i");
-  f(RegExp(r"\p{SD}", unicode: true), "A");
-
-  t(RegExp(r"\p{Terminal_Punctuation}", unicode: true), ".");
-  f(RegExp(r"\p{Term}", unicode: true), "A");
-
-  t(RegExp(r"\p{Unified_Ideograph}", unicode: true), "\u4e00");
-  f(RegExp(r"\p{UIdeo}", unicode: true), "A");
-
-  t(RegExp(r"\p{Uppercase}", unicode: true), "A");
-  f(RegExp(r"\p{Upper}", unicode: true), "a");
-
-  t(RegExp(r"\p{Variation_Selector}", unicode: true), "\uFE00");
-  f(RegExp(r"\p{VS}", unicode: true), "A");
-
-  t(RegExp(r"\p{White_Space}", unicode: true), " ");
-  f(RegExp(r"\p{WSpace}", unicode: true), "A");
-
-  t(RegExp(r"\p{XID_Continue}", unicode: true), "1");
-  f(RegExp(r"\p{XIDC}", unicode: true), " ");
-
-  t(RegExp(r"\p{XID_Start}", unicode: true), "A");
-  f(RegExp(r"\p{XIDS}", unicode: true), " ");
-}
diff --git a/tests/corelib_2/regexp/unicode-property-char-class_test.dart b/tests/corelib_2/regexp/unicode-property-char-class_test.dart
deleted file mode 100644
index fe6316ecec6..00000000000
--- a/tests/corelib_2/regexp/unicode-property-char-class_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2019, the Dart project authors. All rights reserved.
-// Copyright 2011 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'v8_regexp_utils.dart';
-
-void main() {
-  assertThrows(() => RegExp("[\\p]", unicode: true));
-  assertThrows(() => RegExp("[\\p{garbage}]", unicode: true));
-  assertThrows(() => RegExp("[\\p{}]", unicode: true));
-  assertThrows(() => RegExp("[\\p{]", unicode: true));
-  assertThrows(() => RegExp("[\\p}]", unicode: true));
-  assertThrows(() => RegExp("^[\\p{Lu}-\\p{Ll}]+\$", unicode: true));
-
-  assertTrue(RegExp(r"^[\p{Lu}\p{Ll}]+$", unicode: true).hasMatch("ABCabc"));
-  assertTrue(RegExp(r"^[\p{Lu}-]+$", unicode: true).hasMatch("ABC-"));
-  assertFalse(RegExp(r"^[\P{Lu}\p{Ll}]+$", unicode: true).hasMatch("ABCabc"));
-  assertTrue(RegExp(r"^[\P{Lu}\p{Ll}]+$", unicode: true).hasMatch("abc"));
-  assertTrue(RegExp(r"^[\P{Lu}]+$", unicode: true).hasMatch("abc123"));
-  assertFalse(RegExp(r"^[\P{Lu}]+$", unicode: true).hasMatch("XYZ"));
-  assertTrue(RegExp(r"[\p{Math}]", unicode: true).hasMatch("+"));
-  assertTrue(RegExp(r"[\P{Bidi_M}]", unicode: true).hasMatch(" "));
-  assertTrue(RegExp(r"[\p{Hex}]", unicode: true).hasMatch("A"));
-
-  assertTrue(RegExp(r"^[^\P{Lu}]+$", unicode: true).hasMatch("XYZ"));
-  assertFalse(RegExp(r"^[^\p{Lu}\p{Ll}]+$", unicode: true).hasMatch("abc"));
-  assertFalse(RegExp(r"^[^\p{Lu}\p{Ll}]+$", unicode: true).hasMatch("ABC"));
-  assertTrue(RegExp(r"^[^\p{Lu}\p{Ll}]+$", unicode: true).hasMatch("123"));
-  assertTrue(RegExp(r"^[^\p{Lu}\P{Ll}]+$", unicode: true).hasMatch("abc"));
-}
diff --git a/tests/corelib_2/regexp/unicode-property-enumerated_test.dart b/tests/corelib_2/regexp/unicode-property-enumerated_test.dart
deleted file mode 100644
index 82b32339677..00000000000
--- a/tests/corelib_2/regexp/unicode-property-enumerated_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2019, the Dart project authors. All rights reserved.
-// Copyright 2016 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'v8_regexp_utils.dart';
-
-void main() {
-  assertThrows(() => RegExp("\\p{Bidi_Class=L}+", unicode: true));
-  assertThrows(() => RegExp("\\p{bc=Left_To_Right}+", unicode: true));
-  assertThrows(() => RegExp("\\p{bc=AL}+", unicode: true));
-  assertThrows(() => RegExp("\\p{bc=Arabic_Letter}+", unicode: true));
-
-  assertThrows(() => RegExp("\\p{Line_Break=Glue}", unicode: true));
-  assertThrows(() => RegExp("\\p{lb=AL}", unicode: true));
-
-  assertThrows(() => RegExp("\\p{Block=}", unicode: true));
-  assertThrows(() => RegExp("\\p{=}", unicode: true));
-  assertThrows(() => RegExp("\\p{=L}", unicode: true));
-  assertThrows(() => RegExp("\\p{=Hiragana}", unicode: true));
-  assertThrows(() => RegExp("\\p{Block=CJK=}", unicode: true));
-
-  assertThrows(() => RegExp("\\p{Age=V8_0}", unicode: true));
-  assertDoesNotThrow(
-      () => RegExp("\\p{General_Category=Letter}", unicode: true));
-  assertDoesNotThrow(() => RegExp("\\p{gc=L}", unicode: true));
-  assertThrows(
-      () => RegExp("\\p{General_Category_Mask=Letter}", unicode: true));
-  assertThrows(() => RegExp("\\p{gcm=L}", unicode: true));
-}
diff --git a/tests/corelib_2/regexp/unicode-property-exact-match_test.dart b/tests/corelib_2/regexp/unicode-property-exact-match_test.dart
deleted file mode 100644
index e4b1639edb8..00000000000
--- a/tests/corelib_2/regexp/unicode-property-exact-match_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2019, the Dart project authors. All rights reserved.
-// Copyright 2016 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'v8_regexp_utils.dart';
-
-void main() {
-  assertThrows(() => RegExp("\\p{In CJK}", unicode: true));
-  assertThrows(() => RegExp("\\p{InCJKUnifiedIdeographs}", unicode: true));
-  assertThrows(() => RegExp("\\p{InCJK}", unicode: true));
-  assertThrows(() => RegExp("\\p{InCJK_Unified_Ideographs}", unicode: true));
-
-  assertThrows(() => RegExp("\\p{InCyrillic_Sup}", unicode: true));
-  assertThrows(() => RegExp("\\p{InCyrillic_Supplement}", unicode: true));
-  assertThrows(() => RegExp("\\p{InCyrillic_Supplementary}", unicode: true));
-  assertThrows(() => RegExp("\\p{InCyrillicSupplementary}", unicode: true));
-  assertThrows(() => RegExp("\\p{InCyrillic_supplementary}", unicode: true));
-
-  assertDoesNotThrow(() => RegExp("\\p{C}", unicode: true));
-  assertDoesNotThrow(() => RegExp("\\p{Other}", unicode: true));
-  assertDoesNotThrow(() => RegExp("\\p{Cc}", unicode: true));
-  assertDoesNotThrow(() => RegExp("\\p{Control}", unicode: true));
-  assertDoesNotThrow(() => RegExp("\\p{cntrl}", unicode: true));
-  assertDoesNotThrow(() => RegExp("\\p{M}", unicode: true));
-  assertDoesNotThrow(() => RegExp("\\p{Mark}", unicode: true));
-  assertDoesNotThrow(() => RegExp("\\p{Combining_Mark}", unicode: true));
-  assertThrows(() => RegExp("\\p{Combining Mark}", unicode: true));
-
-  assertDoesNotThrow(() => RegExp("\\p{Script=Copt}", unicode: true));
-  assertThrows(() => RegExp("\\p{Coptic}", unicode: true));
-  assertThrows(() => RegExp("\\p{Qaac}", unicode: true));
-  assertThrows(() => RegExp("\\p{Egyp}", unicode: true));
-  assertDoesNotThrow(
-      () => RegExp("\\p{Script=Egyptian_Hieroglyphs}", unicode: true));
-  assertThrows(() => RegExp("\\p{EgyptianHieroglyphs}", unicode: true));
-
-  assertThrows(() => RegExp("\\p{BidiClass=LeftToRight}", unicode: true));
-  assertThrows(() => RegExp("\\p{BidiC=LeftToRight}", unicode: true));
-  assertThrows(() => RegExp("\\p{bidi_c=Left_To_Right}", unicode: true));
-
-  assertThrows(() => RegExp("\\p{Block=CJK}", unicode: true));
-  assertThrows(() => RegExp("\\p{Block = CJK}", unicode: true));
-  assertThrows(() => RegExp("\\p{Block=cjk}", unicode: true));
-  assertThrows(() => RegExp("\\p{BLK=CJK}", unicode: true));
-}
diff --git a/tests/corelib_2/regexp/unicode-property-general-category_test.dart b/tests/corelib_2/regexp/unicode-property-general-category_test.dart
deleted file mode 100644
index 34d3ff082ae..00000000000
--- a/tests/corelib_2/regexp/unicode-property-general-category_test.dart
+++ /dev/null
@@ -1,116 +0,0 @@
-// Copyright (c) 2019, the Dart project authors. All rights reserved.
-// Copyright 2016 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'v8_regexp_utils.dart';
-
-void main() {
-  assertThrows(() => RegExp("\\p", unicode: true));
-  assertThrows(() => RegExp("\\p{garbage}", unicode: true));
-  assertThrows(() => RegExp("\\p{}", unicode: true));
-  assertThrows(() => RegExp("\\p{", unicode: true));
-  assertThrows(() => RegExp("\\p}", unicode: true));
-  assertThrows(() => RegExp("\\pL", unicode: true));
-  assertThrows(() => RegExp("\\P", unicode: true));
-  assertThrows(() => RegExp("\\P{garbage}", unicode: true));
-  assertThrows(() => RegExp("\\P{}", unicode: true));
-  assertThrows(() => RegExp("\\P{", unicode: true));
-  assertThrows(() => RegExp("\\P}", unicode: true));
-  assertThrows(() => RegExp("\\PL", unicode: true));
-
-  assertTrue(RegExp(r"\p{Ll}", unicode: true).hasMatch("a"));
-  assertFalse(RegExp(r"\P{Ll}", unicode: true).hasMatch("a"));
-  assertTrue(RegExp(r"\P{Ll}", unicode: true).hasMatch("A"));
-  assertFalse(RegExp(r"\p{Ll}", unicode: true).hasMatch("A"));
-  assertTrue(RegExp(r"\p{Ll}", unicode: true).hasMatch("\u{1D7BE}"));
-  assertFalse(RegExp(r"\P{Ll}", unicode: true).hasMatch("\u{1D7BE}"));
-  assertFalse(RegExp(r"\p{Ll}", unicode: true).hasMatch("\u{1D5E3}"));
-  assertTrue(RegExp(r"\P{Ll}", unicode: true).hasMatch("\u{1D5E3}"));
-
-  assertTrue(
-      RegExp(r"\p{Ll}", caseSensitive: false, unicode: true).hasMatch("a"));
-  assertTrue(RegExp(r"\p{Ll}", caseSensitive: false, unicode: true)
-      .hasMatch("\u{118D4}"));
-  assertTrue(
-      RegExp(r"\p{Ll}", caseSensitive: false, unicode: true).hasMatch("A"));
-  assertTrue(RegExp(r"\p{Ll}", caseSensitive: false, unicode: true)
-      .hasMatch("\u{118B4}"));
-  assertTrue(
-      RegExp(r"\P{Ll}", caseSensitive: false, unicode: true).hasMatch("a"));
-  assertTrue(RegExp(r"\P{Ll}", caseSensitive: false, unicode: true)
-      .hasMatch("\u{118D4}"));
-  assertTrue(
-      RegExp(r"\P{Ll}", caseSensitive: false, unicode: true).hasMatch("A"));
-  assertTrue(RegExp(r"\P{Ll}", caseSensitive: false, unicode: true)
-      .hasMatch("\u{118B4}"));
-
-  assertTrue(RegExp(r"\p{Lu}", unicode: true).hasMatch("A"));
-  assertFalse(RegExp(r"\P{Lu}", unicode: true).hasMatch("A"));
-  assertTrue(RegExp(r"\P{Lu}", unicode: true).hasMatch("a"));
-  assertFalse(RegExp(r"\p{Lu}", unicode: true).hasMatch("a"));
-  assertTrue(RegExp(r"\p{Lu}", unicode: true).hasMatch("\u{1D5E3}"));
-  assertFalse(RegExp(r"\P{Lu}", unicode: true).hasMatch("\u{1D5E3}"));
-  assertFalse(RegExp(r"\p{Lu}", unicode: true).hasMatch("\u{1D7BE}"));
-  assertTrue(RegExp(r"\P{Lu}", unicode: true).hasMatch("\u{1D7BE}"));
-
-  assertTrue(
-      RegExp(r"\p{Lu}", caseSensitive: false, unicode: true).hasMatch("a"));
-  assertTrue(RegExp(r"\p{Lu}", caseSensitive: false, unicode: true)
-      .hasMatch("\u{118D4}"));
-  assertTrue(
-      RegExp(r"\p{Lu}", caseSensitive: false, unicode: true).hasMatch("A"));
-  assertTrue(RegExp(r"\p{Lu}", caseSensitive: false, unicode: true)
-      .hasMatch("\u{118B4}"));
-  assertTrue(
-      RegExp(r"\P{Lu}", caseSensitive: false, unicode: true).hasMatch("a"));
-  assertTrue(RegExp(r"\P{Lu}", caseSensitive: false, unicode: true)
-      .hasMatch("\u{118D4}"));
-  assertTrue(
-      RegExp(r"\P{Lu}", caseSensitive: false, unicode: true).hasMatch("A"));
-  assertTrue(RegExp(r"\P{Lu}", caseSensitive: false, unicode: true)
-      .hasMatch("\u{118B4}"));
-
-  assertTrue(RegExp(r"\p{Sm}", unicode: true).hasMatch("+"));
-  assertFalse(RegExp(r"\P{Sm}", unicode: true).hasMatch("+"));
-  assertTrue(RegExp(r"\p{Sm}", unicode: true).hasMatch("\u{1D6C1}"));
-  assertFalse(RegExp(r"\P{Sm}", unicode: true).hasMatch("\u{1D6C1}"));
-
-  assertFalse(RegExp(r"\p{L}", unicode: true).hasMatch("\uA6EE"));
-  assertTrue(RegExp(r"\P{L}", unicode: true).hasMatch("\uA6EE"));
-
-  assertTrue(RegExp(r"\p{Lowercase_Letter}", unicode: true).hasMatch("a"));
-  assertTrue(RegExp(r"\p{Math_Symbol}", unicode: true).hasMatch("+"));
-
-  assertTrue(RegExp(r"\p{gc=Ll}", unicode: true).hasMatch("a"));
-  assertTrue(
-      RegExp(r"\p{General_Category=Math_Symbol}", unicode: true).hasMatch("+"));
-  assertTrue(RegExp(r"\p{General_Category=L}", unicode: true).hasMatch("X"));
-}
diff --git a/tests/corelib_2/regexp/unicode-property-invalid_test.dart b/tests/corelib_2/regexp/unicode-property-invalid_test.dart
deleted file mode 100644
index 48e1783cd0b..00000000000
--- a/tests/corelib_2/regexp/unicode-property-invalid_test.dart
+++ /dev/null
@@ -1,70 +0,0 @@
-// Copyright (c) 2019, the Dart project authors. All rights reserved.
-// Copyright 2016 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'v8_regexp_utils.dart';
-
-void main() {
-  assertThrows(() => RegExp("\p{Block=ASCII}+", unicode: true));
-  assertThrows(() => RegExp("\p{Block=ASCII}+", unicode: true));
-  assertThrows(() => RegExp("\p{Block=Basic_Latin}+", unicode: true));
-  assertThrows(() => RegExp("\p{Block=Basic_Latin}+", unicode: true));
-
-  assertThrows(() => RegExp("\p{blk=CJK}+", unicode: true));
-  assertThrows(() => RegExp("\p{blk=CJK_Unified_Ideographs}+", unicode: true));
-  assertThrows(() => RegExp("\p{blk=CJK}+", unicode: true));
-  assertThrows(() => RegExp("\p{blk=CJK_Unified_Ideographs}+", unicode: true));
-
-  assertThrows(() => RegExp("\p{Block=ASCII}+", unicode: true));
-  assertThrows(() => RegExp("\p{Block=ASCII}+", unicode: true));
-  assertThrows(() => RegExp("\p{Block=Basic_Latin}+", unicode: true));
-  assertThrows(() => RegExp("\p{Block=Basic_Latin}+", unicode: true));
-
-  assertThrows(() => RegExp("\p{NFKD_Quick_Check=Y}+", unicode: true));
-  assertThrows(() => RegExp("\p{NFKD_QC=Yes}+", unicode: true));
-
-  assertThrows(() => RegExp("\p{Numeric_Type=Decimal}+", unicode: true));
-  assertThrows(() => RegExp("\p{nt=De}+", unicode: true));
-
-  assertThrows(() => RegExp("\p{Bidi_Class=Arabic_Letter}+", unicode: true));
-  assertThrows(() => RegExp("\p{Bidi_Class=AN}+", unicode: true));
-
-  assertThrows(() => RegExp("\p{ccc=OV}+", unicode: true));
-
-  assertThrows(() => RegExp("\p{Sentence_Break=Format}+", unicode: true));
-
-  assertThrows(() => RegExp("\\p{In}", unicode: true));
-  assertThrows(() => RegExp("\\pI", unicode: true));
-  assertThrows(() => RegExp("\\p{I}", unicode: true));
-  assertThrows(() => RegExp("\\p{CJK}", unicode: true));
-
-  assertThrows(() => RegExp("\\p{}", unicode: true));
-}
diff --git a/tests/corelib_2/regexp/unicode-property-scripts_test.dart b/tests/corelib_2/regexp/unicode-property-scripts_test.dart
deleted file mode 100644
index aa027aa430a..00000000000
--- a/tests/corelib_2/regexp/unicode-property-scripts_test.dart
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright (c) 2019, the Dart project authors. All rights reserved.
-// Copyright 2016 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'v8_regexp_utils.dart';
-
-void main() {
-  void t(RegExp re, String s) {
-    assertTrue(re.hasMatch(s));
-  }
-
-  void f(RegExp re, String s) {
-    assertFalse(re.hasMatch(s));
-  }
-
-  t(RegExp(r"\p{Script=Common}+", unicode: true), ".");
-  f(RegExp(r"\p{Script=Common}+", unicode: true),
-      "supercalifragilisticexpialidocious");
-
-  t(RegExp(r"\p{Script=Han}+", unicode: true), "话说天下大势，分久必合，合久必分");
-  t(RegExp(r"\p{Script=Hani}+", unicode: true), "吾庄后有一桃园，花开正盛");
-  f(RegExp(r"\p{Script=Han}+", unicode: true), "おはようございます");
-  f(RegExp(r"\p{Script=Hani}+", unicode: true),
-      "Something is rotten in the state of Denmark");
-
-  t(RegExp(r"\p{Script=Latin}+", unicode: true),
-      "Wie froh bin ich, daß ich weg bin!");
-  t(RegExp(r"\p{Script=Latn}+", unicode: true),
-      "It was a bright day in April, and the clocks were striking thirteen");
-  f(RegExp(r"\p{Script=Latin}+", unicode: true), "奔腾千里荡尘埃，渡水登山紫雾开");
-  f(RegExp(r"\p{Script=Latn}+", unicode: true), "いただきます");
-
-  t(RegExp(r"\p{sc=Hiragana}", unicode: true), "いただきます");
-  t(RegExp(r"\p{sc=Hira}", unicode: true), "ありがとうございました");
-  f(RegExp(r"\p{sc=Hiragana}", unicode: true),
-      "Als Gregor Samsa eines Morgens aus unruhigen Träumen erwachte");
-  f(RegExp(r"\p{sc=Hira}", unicode: true), "Call me Ishmael");
-
-  t(RegExp(r"\p{sc=Phoenician}", unicode: true), "\u{10900}\u{1091a}");
-  t(RegExp(r"\p{sc=Phnx}", unicode: true), "\u{1091f}\u{10916}");
-  f(RegExp(r"\p{sc=Phoenician}", unicode: true), "Arthur est un perroquet");
-  f(RegExp(r"\p{sc=Phnx}", unicode: true), "设心狠毒非良士，操卓原来一路人");
-
-  t(RegExp(r"\p{sc=Grek}", unicode: true),
-      "ἄνδρα μοι ἔννεπε, μοῦσα, πολύτροπον, ὃς μάλα πολλὰ");
-  t(RegExp(r"\p{sc=Greek}", unicode: true),
-      "μῆνιν ἄειδε θεὰ Πηληϊάδεω Ἀχιλῆος");
-  f(RegExp(r"\p{sc=Greek}", unicode: true), "高贤未服英雄志，屈节偏生杰士疑");
-  f(RegExp(r"\p{sc=Greek}", unicode: true),
-      "Mr. Jones, of the Manor Farm, had locked the hen-houses for the night");
-}
diff --git a/tests/corelib_2/regexp/unicode-property-special_test.dart b/tests/corelib_2/regexp/unicode-property-special_test.dart
deleted file mode 100644
index 49b66e6291a..00000000000
--- a/tests/corelib_2/regexp/unicode-property-special_test.dart
+++ /dev/null
@@ -1,112 +0,0 @@
-// Copyright (c) 2019, the Dart project authors. All rights reserved.
-// Copyright 2016 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'v8_regexp_utils.dart';
-
-void main() {
-  void t(RegExp re, String s) {
-    assertTrue(re.hasMatch(s));
-  }
-
-  void f(RegExp re, String s) {
-    assertFalse(re.hasMatch(s));
-  }
-
-  t(RegExp(r"\p{ASCII}+", unicode: true), "abc123");
-  f(RegExp(r"\p{ASCII}+", unicode: true), "ⓐⓑⓒ①②③");
-  f(RegExp(r"\p{ASCII}+", unicode: true), "🄰🄱🄲①②③");
-  f(RegExp(r"\P{ASCII}+", unicode: true), "abcd123");
-  t(RegExp(r"\P{ASCII}+", unicode: true), "ⓐⓑⓒ①②③");
-  t(RegExp(r"\P{ASCII}+", unicode: true), "🄰🄱🄲①②③");
-
-  f(RegExp(r"[^\p{ASCII}]+", unicode: true), "abc123");
-  f(RegExp(r"[\p{ASCII}]+", unicode: true), "ⓐⓑⓒ①②③");
-  f(RegExp(r"[\p{ASCII}]+", unicode: true), "🄰🄱🄲①②③");
-  t(RegExp(r"[^\P{ASCII}]+", unicode: true), "abcd123");
-  t(RegExp(r"[\P{ASCII}]+", unicode: true), "ⓐⓑⓒ①②③");
-  f(RegExp(r"[^\P{ASCII}]+", unicode: true), "🄰🄱🄲①②③");
-
-  t(RegExp(r"\p{Any}+", unicode: true), "🄰🄱🄲①②③");
-
-  shouldBe(
-      RegExp(r"\p{Any}", unicode: true).firstMatch("\ud800\ud801"), ["\ud800"]);
-  shouldBe(
-      RegExp(r"\p{Any}", unicode: true).firstMatch("\udc00\udc01"), ["\udc00"]);
-  shouldBe(RegExp(r"\p{Any}", unicode: true).firstMatch("\ud800\udc01"),
-      ["\ud800\udc01"]);
-  shouldBe(RegExp(r"\p{Any}", unicode: true).firstMatch("\udc01"), ["\udc01"]);
-
-  f(RegExp(r"\P{Any}+", unicode: true), "123");
-  f(RegExp(r"[\P{Any}]+", unicode: true), "123");
-  t(RegExp(r"[\P{Any}\d]+", unicode: true), "123");
-  t(RegExp(r"[^\P{Any}]+", unicode: true), "123");
-
-  t(RegExp(r"\p{Assigned}+", unicode: true), "123");
-  t(RegExp(r"\p{Assigned}+", unicode: true), "🄰🄱🄲");
-  f(RegExp(r"\p{Assigned}+", unicode: true), "\ufdd0");
-  f(RegExp(r"\p{Assigned}+", unicode: true), "\u{fffff}");
-
-  f(RegExp(r"\P{Assigned}+", unicode: true), "123");
-  f(RegExp(r"\P{Assigned}+", unicode: true), "🄰🄱🄲");
-  t(RegExp(r"\P{Assigned}+", unicode: true), "\ufdd0");
-  t(RegExp(r"\P{Assigned}+", unicode: true), "\u{fffff}");
-  f(RegExp(r"\P{Assigned}", unicode: true), "");
-
-  t(RegExp(r"[^\P{Assigned}]+", unicode: true), "123");
-  f(RegExp(r"[\P{Assigned}]+", unicode: true), "🄰🄱🄲");
-  f(RegExp(r"[^\P{Assigned}]+", unicode: true), "\ufdd0");
-  t(RegExp(r"[\P{Assigned}]+", unicode: true), "\u{fffff}");
-  f(RegExp(r"[\P{Assigned}]", unicode: true), "");
-
-  f(RegExp(r"[^\u1234\p{ASCII}]+", unicode: true), "\u1234");
-  t(RegExp(r"[x\P{ASCII}]+", unicode: true), "x");
-  t(RegExp(r"[\u1234\p{ASCII}]+", unicode: true), "\u1234");
-
-// Contributory binary properties are not supported.
-  assertThrows(() => RegExp("\\p{Other_Alphabetic}", unicode: true));
-  assertThrows(() => RegExp("\\P{OAlpha}", unicode: true));
-  assertThrows(
-      () => RegExp("\\p{Other_Default_Ignorable_Code_Point}", unicode: true));
-  assertThrows(() => RegExp("\\P{ODI}", unicode: true));
-  assertThrows(() => RegExp("\\p{Other_Grapheme_Extend}", unicode: true));
-  assertThrows(() => RegExp("\\P{OGr_Ext}", unicode: true));
-  assertThrows(() => RegExp("\\p{Other_ID_Continue}", unicode: true));
-  assertThrows(() => RegExp("\\P{OIDC}", unicode: true));
-  assertThrows(() => RegExp("\\p{Other_ID_Start}", unicode: true));
-  assertThrows(() => RegExp("\\P{OIDS}", unicode: true));
-  assertThrows(() => RegExp("\\p{Other_Lowercase}", unicode: true));
-  assertThrows(() => RegExp("\\P{OLower}", unicode: true));
-  assertThrows(() => RegExp("\\p{Other_Math}", unicode: true));
-  assertThrows(() => RegExp("\\P{OMath}", unicode: true));
-  assertThrows(() => RegExp("\\p{Other_Uppercase}", unicode: true));
-  assertThrows(() => RegExp("\\P{OUpper}", unicode: true));
-}
diff --git a/tests/corelib_2/regexp/unicode-regexp-backrefs_test.dart b/tests/corelib_2/regexp/unicode-regexp-backrefs_test.dart
deleted file mode 100644
index b05c8bc8719..00000000000
--- a/tests/corelib_2/regexp/unicode-regexp-backrefs_test.dart
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright (c) 2019, the Dart project authors. All rights reserved.
-// Copyright 2016 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'v8_regexp_utils.dart';
-
-String replace(String string) {
-  return string
-      .replaceAll("L", "\ud800")
-      .replaceAll("l", "\ud801")
-      .replaceAll("T", "\udc00")
-      .replaceAll(".", "[^]");
-}
-
-void test(List<String> expectation, String regexp_source, String subject) {
-  if (expectation != null) expectation = expectation.map(replace).toList();
-  subject = replace(subject);
-  regexp_source = replace(regexp_source);
-  shouldBe(new RegExp(regexp_source, unicode: true).firstMatch(subject),
-      expectation);
-}
-
-void main() {
-  // Back reference does not end in the middle of a surrogate pair.
-  test(null, "(L)\\1", "LLT");
-  test(["LLTLl", "L", "l"], "(L).*\\1(.)", "LLTLl");
-  test(null, "(aL).*\\1", "aLaLT");
-  test(["aLaLTaLl", "aL", "l"], "(aL).*\\1(.)", "aLaLTaLl");
-
-  var s = "TabcLxLTabcLxTabcLTyTabcLz";
-  test([s, "TabcL", "z"], "([^x]+).*\\1(.)", s);
-
-  // Back reference does not start in the middle of a surrogate pair.
-  test(["TLTabTc", "T", "c"], "(T).*\\1(.)", "TLTabTc");
-
-  // Lookbehinds.
-  test(null, "(?<=\\1(T)x)", "LTTx");
-  test(["", "b", "T"], "(?<=(.)\\2.*(T)x)", "bTaLTTx");
-  test(null, "(?<=\\1.*(L)x)", "LTLx");
-  test(["", "b", "L"], "(?<=(.)\\2.*(L)x)", "bLaLTLx");
-
-  test(null, "([^x]+)x*\\1", "LxLT");
-  test(null, "([^x]+)x*\\1", "TxLT");
-  test(null, "([^x]+)x*\\1", "LTxL");
-  test(null, "([^x]+)x*\\1", "LTxT");
-  test(null, "([^x]+)x*\\1", "xLxLT");
-  test(null, "([^x]+)x*\\1", "xTxLT");
-  test(null, "([^x]+)x*\\1", "xLTxL");
-  test(null, "([^x]+)x*\\1", "xLTxT");
-  test(null, "([^x]+)x*\\1", "xxxLxxLTxx");
-  test(null, "([^x]+)x*\\1", "xxxTxxLTxx");
-  test(null, "([^x]+)x*\\1", "xxxLTxxLxx");
-  test(null, "([^x]+)x*\\1", "xxxLTxxTxx");
-  test(["LTTxxLTT", "LTT"], "([^x]+)x*\\1", "xxxLTTxxLTTxx");
-}
diff --git a/tests/corelib_2/regexp/unicode-regexp-ignore-case_test.dart b/tests/corelib_2/regexp/unicode-regexp-ignore-case_test.dart
deleted file mode 100644
index 5c73352c3d9..00000000000
--- a/tests/corelib_2/regexp/unicode-regexp-ignore-case_test.dart
+++ /dev/null
@@ -1,137 +0,0 @@
-// Copyright (c) 2019, the Dart project authors. All rights reserved.
-// Copyright 2016 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'v8_regexp_utils.dart';
-
-void main() {
-  // Non-unicode use toUpperCase mappings.
-  assertFalse(RegExp(r"[\u00e5]", caseSensitive: false).hasMatch("\u212b"));
-  assertFalse(
-      RegExp(r"[\u212b]", caseSensitive: false).hasMatch("\u00e5\u1234"));
-  assertFalse(RegExp(r"[\u212b]", caseSensitive: false).hasMatch("\u00e5"));
-
-  assertTrue("\u212b".toLowerCase() == "\u00e5");
-  assertTrue("\u00c5".toLowerCase() == "\u00e5");
-  assertTrue("\u00e5".toUpperCase() == "\u00c5");
-
-  // Unicode uses case folding mappings.
-  assertTrue(RegExp(r"\u00e5", caseSensitive: false, unicode: true)
-      .hasMatch("\u212b"));
-  assertTrue(RegExp(r"\u00e5", caseSensitive: false, unicode: true)
-      .hasMatch("\u00c5"));
-  assertTrue(RegExp(r"\u00e5", caseSensitive: false, unicode: true)
-      .hasMatch("\u00e5"));
-  assertTrue(RegExp(r"\u00e5", caseSensitive: false, unicode: true)
-      .hasMatch("\u212b"));
-  assertTrue(RegExp(r"\u00c5", caseSensitive: false, unicode: true)
-      .hasMatch("\u00e5"));
-  assertTrue(RegExp(r"\u00c5", caseSensitive: false, unicode: true)
-      .hasMatch("\u212b"));
-  assertTrue(RegExp(r"\u00c5", caseSensitive: false, unicode: true)
-      .hasMatch("\u00c5"));
-  assertTrue(RegExp(r"\u212b", caseSensitive: false, unicode: true)
-      .hasMatch("\u00c5"));
-  assertTrue(RegExp(r"\u212b", caseSensitive: false, unicode: true)
-      .hasMatch("\u00e5"));
-  assertTrue(RegExp(r"\u212b", caseSensitive: false, unicode: true)
-      .hasMatch("\u212b"));
-
-  // Non-BMP.
-  assertFalse(RegExp(r"\u{10400}", caseSensitive: false).hasMatch("\u{10428}"));
-  assertTrue(RegExp(r"\u{10400}", caseSensitive: false, unicode: true)
-      .hasMatch("\u{10428}"));
-  assertTrue(RegExp(r"\ud801\udc00", caseSensitive: false, unicode: true)
-      .hasMatch("\u{10428}"));
-  assertTrue(RegExp(r"[\u{10428}]", caseSensitive: false, unicode: true)
-      .hasMatch("\u{10400}"));
-  assertTrue(RegExp(r"[\ud801\udc28]", caseSensitive: false, unicode: true)
-      .hasMatch("\u{10400}"));
-  shouldBe(
-      RegExp(r"[\uff40-\u{10428}]+", caseSensitive: false, unicode: true)
-          .firstMatch("\uff21\u{10400}abc"),
-      ["\uff21\u{10400}"]);
-  shouldBe(
-      RegExp(r"[^\uff40-\u{10428}]+", caseSensitive: false, unicode: true)
-          .firstMatch("\uff21\u{10400}abc\uff23"),
-      ["abc"]);
-  shouldBe(
-      RegExp(r"[\u24d5-\uff33]+", caseSensitive: false, unicode: true)
-          .firstMatch("\uff54\uff53\u24bb\u24ba"),
-      ["\uff53\u24bb"]);
-
-  // Full mappings are ignored.
-  assertFalse(
-      RegExp(r"\u00df", caseSensitive: false, unicode: true).hasMatch("SS"));
-  assertFalse(RegExp(r"\u1f8d", caseSensitive: false, unicode: true)
-      .hasMatch("\u1f05\u03b9"));
-
-  // Simple mappings work.
-  assertTrue(RegExp(r"\u1f8d", caseSensitive: false, unicode: true)
-      .hasMatch("\u1f85"));
-
-  // Common mappings work.
-  assertTrue(RegExp(r"\u1f6b", caseSensitive: false, unicode: true)
-      .hasMatch("\u1f63"));
-
-  // Back references.
-  shouldBe(
-      RegExp(r"(.)\1\1", caseSensitive: false, unicode: true)
-          .firstMatch("\u00e5\u212b\u00c5"),
-      ["\u00e5\u212b\u00c5", "\u00e5"]);
-  shouldBe(
-      RegExp(r"(.)\1", caseSensitive: false, unicode: true)
-          .firstMatch("\u{118aa}\u{118ca}"),
-      ["\u{118aa}\u{118ca}", "\u{118aa}"]);
-
-  // Misc.
-  assertTrue(RegExp(r"\u00e5\u00e5\u00e5", caseSensitive: false, unicode: true)
-      .hasMatch("\u212b\u00e5\u00c5"));
-  assertTrue(RegExp(r"AB\u{10400}", caseSensitive: false, unicode: true)
-      .hasMatch("ab\u{10428}"));
-
-  // Non-Latin1 maps to Latin1.
-  shouldBe(
-      RegExp(r"^\u017F", caseSensitive: false, unicode: true).firstMatch("s"),
-      ["s"]);
-  shouldBe(
-      RegExp(r"^\u017F", caseSensitive: false, unicode: true)
-          .firstMatch("s\u1234"),
-      ["s"]);
-  shouldBe(
-      RegExp(r"^a[\u017F]", caseSensitive: false, unicode: true)
-          .firstMatch("as"),
-      ["as"]);
-  shouldBe(
-      RegExp(r"^a[\u017F]", caseSensitive: false, unicode: true)
-          .firstMatch("as\u1234"),
-      ["as"]);
-}
diff --git a/tests/corelib_2/regexp/unicode-regexp-match-index_test.dart b/tests/corelib_2/regexp/unicode-regexp-match-index_test.dart
deleted file mode 100644
index 21e5b8396e7..00000000000
--- a/tests/corelib_2/regexp/unicode-regexp-match-index_test.dart
+++ /dev/null
@@ -1,157 +0,0 @@
-// Copyright (c) 2019, the Dart project authors. All rights reserved.
-// Copyright 2016 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'v8_regexp_utils.dart';
-
-void main() {
-  // Testing handling of paired and non-paired surrogates in unicode mode
-  var r = new RegExp(r".", unicode: true);
-
-  var m = r.matchAsPrefix("\ud800\udc00\ud801\udc01");
-  shouldBe(m, ["\ud800\udc00"]);
-  assertEquals(m.end, 2);
-
-  m = r.matchAsPrefix("\ud800\udc00\ud801\udc01", 1);
-  shouldBe(m, ["\ud800\udc00"]);
-  assertEquals(m.end, 2);
-
-  m = r.matchAsPrefix("\ud800\udc00\ud801\udc01", 2);
-  shouldBe(m, ["\ud801\udc01"]);
-  assertEquals(m.end, 4);
-
-  m = r.matchAsPrefix("\ud800\udc00\ud801\udc01", 3);
-  shouldBe(m, ["\ud801\udc01"]);
-  assertEquals(m.end, 4);
-
-  assertNull(r.matchAsPrefix("\ud800\udc00\ud801\udc01", 4));
-
-  m = r.matchAsPrefix("\ud800\udc00\ud801\ud802", 3);
-  shouldBe(m, ["\ud802"]);
-
-  assertNull(r.matchAsPrefix("\ud800\udc00\ud801\ud802", 4));
-
-  // Testing handling of paired and non-paired surrogates in non-unicode mode
-  r = new RegExp(r".");
-
-  m = r.matchAsPrefix("\ud800\udc00\ud801\udc01");
-  shouldBe(m, ["\ud800"]);
-  assertEquals(m.end, 1);
-
-  m = r.matchAsPrefix("\ud800\udc00\ud801\udc01", 1);
-  shouldBe(m, ["\udc00"]);
-  assertEquals(m.end, 2);
-
-  m = r.matchAsPrefix("\ud800\udc00\ud801\udc01", 2);
-  shouldBe(m, ["\ud801"]);
-  assertEquals(m.end, 3);
-
-  m = r.matchAsPrefix("\ud800\udc00\ud801\udc01", 3);
-  shouldBe(m, ["\udc01"]);
-  assertEquals(m.end, 4);
-
-  assertNull(r.matchAsPrefix("\ud800\udc00\ud801\udc01", 4));
-
-  // Testing same with start anchor, unicode mode.
-  r = new RegExp("^.", unicode: true);
-
-  m = r.matchAsPrefix("\ud800\udc00\ud801\udc01");
-  shouldBe(m, ["\ud800\udc00"]);
-  assertEquals(2, m.end);
-
-  m = r.matchAsPrefix("\ud800\udc00\ud801\udc01", 1);
-  shouldBe(m, ["\ud800\udc00"]);
-  assertEquals(2, m.end);
-
-  assertNull(r.matchAsPrefix("\ud800\udc00\ud801\udc01", 2));
-  assertNull(r.matchAsPrefix("\ud800\udc00\ud801\udc01", 3));
-  assertNull(r.matchAsPrefix("\ud800\udc00\ud801\udc01", 4));
-
-  // Testing same with start anchor, non-unicode mode.
-  r = new RegExp("^.");
-  m = r.matchAsPrefix("\ud800\udc00\ud801\udc01");
-  shouldBe(m, ["\ud800"]);
-  assertEquals(1, m.end);
-
-  assertNull(r.matchAsPrefix("\ud800\udc00\ud801\udc01", 1));
-  assertNull(r.matchAsPrefix("\ud800\udc00\ud801\udc01", 2));
-  assertNull(r.matchAsPrefix("\ud800\udc00\ud801\udc01", 3));
-  assertNull(r.matchAsPrefix("\ud800\udc00\ud801\udc01", 4));
-
-  // Now with both anchored and not as alternatives (with the anchored
-  // version as a captured group), unicode mode.
-  r = new RegExp(r"(?:(^.)|.)", unicode: true);
-
-  m = r.matchAsPrefix("\ud800\udc00\ud801\udc01");
-  shouldBe(m, ["\ud800\udc00", "\ud800\udc00"]);
-  assertEquals(m.end, 2);
-
-  m = r.matchAsPrefix("\ud800\udc00\ud801\udc01", 1);
-  shouldBe(m, ["\ud800\udc00", "\ud800\udc00"]);
-  assertEquals(m.end, 2);
-
-  m = r.matchAsPrefix("\ud800\udc00\ud801\udc01", 2);
-  shouldBe(m, ["\ud801\udc01", null]);
-  assertEquals(m.end, 4);
-
-  m = r.matchAsPrefix("\ud800\udc00\ud801\udc01", 3);
-  shouldBe(m, ["\ud801\udc01", null]);
-  assertEquals(m.end, 4);
-
-  assertNull(r.matchAsPrefix("\ud800\udc00\ud801\udc01", 4));
-
-  m = r.matchAsPrefix("\ud800\udc00\ud801\ud802", 3);
-  shouldBe(m, ["\ud802", null]);
-
-  assertNull(r.matchAsPrefix("\ud800\udc00\ud801\ud802", 4));
-
-  // Now with both anchored and not as alternatives (with the anchored
-  // version as a captured group), non-unicode mode.
-  r = new RegExp(r"(?:(^.)|.)");
-
-  m = r.matchAsPrefix("\ud800\udc00\ud801\udc01");
-  shouldBe(m, ["\ud800", "\ud800"]);
-  assertEquals(m.end, 1);
-
-  m = r.matchAsPrefix("\ud800\udc00\ud801\udc01", 1);
-  shouldBe(m, ["\udc00", null]);
-  assertEquals(m.end, 2);
-
-  m = r.matchAsPrefix("\ud800\udc00\ud801\udc01", 2);
-  shouldBe(m, ["\ud801", null]);
-  assertEquals(m.end, 3);
-
-  m = r.matchAsPrefix("\ud800\udc00\ud801\udc01", 3);
-  shouldBe(m, ["\udc01", null]);
-  assertEquals(m.end, 4);
-
-  assertNull(r.matchAsPrefix("\ud800\udc00\ud801\udc01", 4));
-}
diff --git a/tests/corelib_2/regexp/unicode-regexp-restricted-syntax_test.dart b/tests/corelib_2/regexp/unicode-regexp-restricted-syntax_test.dart
deleted file mode 100644
index 5530da2d08b..00000000000
--- a/tests/corelib_2/regexp/unicode-regexp-restricted-syntax_test.dart
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright (c) 2019, the Dart project authors. All rights reserved.
-// Copyright 2016 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'v8_regexp_utils.dart';
-
-void main() {
-  // test262/data/test/language/literals/regexp/u-dec-esc
-  assertThrows(() => RegExp(r"\1", unicode: true));
-  // test262/language/literals/regexp/u-invalid-char-range-a
-  assertThrows(() => RegExp(r"[\w-a]", unicode: true));
-  // test262/language/literals/regexp/u-invalid-char-range-b
-  assertThrows(() => RegExp(r"[a-\w]", unicode: true));
-  // test262/language/literals/regexp/u-invalid-char-esc
-  assertThrows(() => RegExp(r"\c", unicode: true));
-  assertThrows(() => RegExp(r"\c0", unicode: true));
-  // test262/built-ins/RegExp/unicode_restricted_quantifiable_assertion
-  assertThrows(() => RegExp(r"(?=.)*", unicode: true));
-  assertThrows(() => RegExp(r"(?=.){1,2}", unicode: true));
-  // test262/built-ins/RegExp/unicode_restricted_octal_escape
-  assertThrows(() => RegExp(r"[\1]", unicode: true));
-  assertThrows(() => RegExp(r"\00", unicode: true));
-  assertThrows(() => RegExp(r"\09", unicode: true));
-  // test262/built-ins/RegExp/unicode_restricted_identity_escape_alpha
-  assertThrows(() => RegExp(r"[\c]", unicode: true));
-  // test262/built-ins/RegExp/unicode_restricted_identity_escape_c
-  assertThrows(() => RegExp(r"[\c0]", unicode: true));
-  // test262/built-ins/RegExp/unicode_restricted_incomple_quantifier
-  assertThrows(() => RegExp(r"a{", unicode: true));
-  assertThrows(() => RegExp(r"a{1,", unicode: true));
-  assertThrows(() => RegExp(r"{", unicode: true));
-  assertThrows(() => RegExp(r"}", unicode: true));
-  // test262/data/test/built-ins/RegExp/unicode_restricted_brackets
-  assertThrows(() => RegExp(r"]", unicode: true));
-  // test262/built-ins/RegExp/unicode_identity_escape
-  assertDoesNotThrow(() => RegExp(r"\/", unicode: true));
-
-  // escaped \0 (as NUL) is allowed inside a character class.
-  shouldBe(RegExp(r"[\0]", unicode: true).firstMatch("\u0000"), ["\u0000"]);
-  // unless it is followed by another digit.
-  assertThrows(() => RegExp(r"[\00]", unicode: true));
-  assertThrows(() => RegExp(r"[\01]", unicode: true));
-  assertThrows(() => RegExp(r"[\09]", unicode: true));
-  shouldBe(RegExp(r"[1\0a]+", unicode: true).firstMatch("b\u{0}1\u{0}a\u{0}2"),
-      ["\u{0}1\u{0}a\u{0}"]);
-  // escaped \- is allowed inside a character class.
-  shouldBe(RegExp(r"[a\-z]", unicode: true).firstMatch("12-34"), ["-"]);
-}
diff --git a/tests/corelib_2/regexp/unicode-regexp-unanchored-advance_test.dart b/tests/corelib_2/regexp/unicode-regexp-unanchored-advance_test.dart
deleted file mode 100644
index 91683729b66..00000000000
--- a/tests/corelib_2/regexp/unicode-regexp-unanchored-advance_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2019, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'v8_regexp_utils.dart';
-
-void main() {
-  final s = "a" * 10000000 + "\u1234";
-  shouldBe(
-      RegExp(r"(\u1234)", unicode: true).firstMatch(s), ["\u1234", "\u1234"]);
-}
diff --git a/tests/corelib_2/regexp/unicode-regexp-zero-length_test.dart b/tests/corelib_2/regexp/unicode-regexp-zero-length_test.dart
deleted file mode 100644
index 080c6d3c185..00000000000
--- a/tests/corelib_2/regexp/unicode-regexp-zero-length_test.dart
+++ /dev/null
@@ -1,95 +0,0 @@
-// Copyright (c) 2019, the Dart project authors. All rights reserved.
-// Copyright 2016 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'v8_regexp_utils.dart';
-
-void main() {
-  const L = "\ud800";
-  const T = "\udc00";
-  const x = "x";
-
-  var r = RegExp(r"()"); // Not unicode.
-  // Zero-length matches do not advance lastIndex.
-  var m = r.matchAsPrefix(L + T + L + T);
-  shouldBe(m, ["", ""]);
-  assertEquals(0, m.end);
-
-  m = r.matchAsPrefix(L + T + L + T, 1);
-  shouldBe(m, ["", ""]);
-  assertEquals(1, m.end);
-
-  var u = RegExp(r"()", unicode: true);
-
-  // Zero-length matches do not advance lastIndex (but do respect paired
-  // surrogates).
-  m = u.matchAsPrefix(L + T + L + T);
-  shouldBe(m, ["", ""]);
-  assertEquals(0, m.end);
-
-  m = u.matchAsPrefix(L + T + L + T, 1);
-  shouldBe(m, ["", ""]);
-  assertEquals(0, m.end);
-
-  // However, with repeating matches, we do advance from match to match.
-  var ms = r.allMatches(L + T + L + T);
-  assertEquals(5, ms.length);
-  for (var i = 0; i < ms.length; i++) {
-    shouldBe(ms.elementAt(i), ["", ""]);
-  }
-
-  // With unicode flag, we advance code point by code point.
-  ms = u.allMatches(L + T + L + T);
-  assertEquals(3, ms.length);
-  for (var i = 0; i < ms.length; i++) {
-    shouldBe(ms.elementAt(i), ["", ""]);
-  }
-
-  // Test with a lot of copies.
-  const c = 100;
-  ms = u.allMatches((L + T) * c);
-  assertEquals(c + 1, ms.length);
-  for (var i = 0; i < ms.length; i++) {
-    shouldBe(ms.elementAt(i), ["", ""]);
-  }
-
-  // Same with replaceAll().
-  assertEquals(
-      x + L + x + T + x + L + x + T + x, (L + T + L + T).replaceAll(r, "x"));
-
-  assertEquals(x + L + T + x + L + T + x, (L + T + L + T).replaceAll(u, "x"));
-
-  assertEquals((x + L + T) * c + x, ((L + T) * c).replaceAll(u, "x"));
-
-  // Also test String#split.
-  Expect.deepEquals(
-      ["\u{12345}"], "\u{12345}".split(RegExp(r"(?:)", unicode: true)));
-}
diff --git a/tests/corelib_2/regexp/unicodeCaseInsensitive_test.dart b/tests/corelib_2/regexp/unicodeCaseInsensitive_test.dart
deleted file mode 100644
index 4e19c113482..00000000000
--- a/tests/corelib_2/regexp/unicodeCaseInsensitive_test.dart
+++ /dev/null
@@ -1,110 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  shouldBeTrue(
-      new RegExp(r"ΣΤΙΓΜΑΣ", caseSensitive: false).hasMatch("στιγμας"));
-  shouldBeTrue(new RegExp(r"ΔΣΔ", caseSensitive: false).hasMatch("δςδ"));
-  shouldBeTrue(new RegExp(r"ς", caseSensitive: false).hasMatch("σ"));
-  shouldBeTrue(new RegExp(r"σ", caseSensitive: false).hasMatch("ς"));
-
-  // Simple case, has no canonical equivalents
-  shouldBeTrue(new RegExp(r"\u1f16", caseSensitive: false).hasMatch("\u1f16"));
-
-  // Test the sets of USC2 code points that have more than one canonically equivalent value.
-  dynamic ucs2CodePoint(x) => new String.fromCharCode(x);
-  dynamic testSet(s) {
-    for (var i in s) {
-      for (var j in s) {
-        shouldBeTrue(new RegExp(ucs2CodePoint(i), caseSensitive: false)
-            .hasMatch(ucs2CodePoint(j)));
-        shouldBeTrue(new RegExp(
-                "[${ucs2CodePoint(i - 1)}-${ucs2CodePoint(i + 1)}]",
-                caseSensitive: false)
-            .hasMatch(ucs2CodePoint(j)));
-      }
-    }
-  }
-
-  testSet([0x01c4, 0x01c5, 0x01c6]);
-  testSet([0x01c7, 0x01c8, 0x01c9]);
-  testSet([0x01ca, 0x01cb, 0x01cc]);
-  testSet([0x01f1, 0x01f2, 0x01f3]);
-  testSet([0x0392, 0x03b2, 0x03d0]);
-  testSet([0x0395, 0x03b5, 0x03f5]);
-  testSet([0x0398, 0x03b8, 0x03d1]);
-  testSet([0x0345, 0x0399, 0x03b9, 0x1fbe]);
-  testSet([0x039a, 0x03ba, 0x03f0]);
-  testSet([0x00b5, 0x039c, 0x03bc]);
-  testSet([0x03a0, 0x03c0, 0x03d6]);
-  testSet([0x03a1, 0x03c1, 0x03f1]);
-  testSet([0x03a3, 0x03c2, 0x03c3]);
-  testSet([0x03a6, 0x03c6, 0x03d5]);
-  testSet([0x1e60, 0x1e61, 0x1e9b]);
-
-  // Test a couple of lo/hi pairs
-  shouldBeTrue(new RegExp(r"\u03cf", caseSensitive: false).hasMatch("\u03cf"));
-  shouldBeTrue(new RegExp(r"\u03d7", caseSensitive: false).hasMatch("\u03cf"));
-  shouldBeTrue(new RegExp(r"\u03cf", caseSensitive: false).hasMatch("\u03d7"));
-  shouldBeTrue(new RegExp(r"\u03d7", caseSensitive: false).hasMatch("\u03d7"));
-  shouldBeTrue(new RegExp(r"\u1f11", caseSensitive: false).hasMatch("\u1f11"));
-  shouldBeTrue(new RegExp(r"\u1f19", caseSensitive: false).hasMatch("\u1f11"));
-  shouldBeTrue(new RegExp(r"\u1f11", caseSensitive: false).hasMatch("\u1f19"));
-  shouldBeTrue(new RegExp(r"\u1f19", caseSensitive: false).hasMatch("\u1f19"));
-
-  // Test an aligned alternating capitalization pair.
-  shouldBeFalse(new RegExp(r"\u0489", caseSensitive: false).hasMatch("\u048a"));
-  shouldBeTrue(new RegExp(r"\u048a", caseSensitive: false).hasMatch("\u048a"));
-  shouldBeTrue(new RegExp(r"\u048b", caseSensitive: false).hasMatch("\u048a"));
-  shouldBeFalse(new RegExp(r"\u048c", caseSensitive: false).hasMatch("\u048a"));
-  shouldBeFalse(new RegExp(r"\u0489", caseSensitive: false).hasMatch("\u048b"));
-  shouldBeTrue(new RegExp(r"\u048a", caseSensitive: false).hasMatch("\u048b"));
-  shouldBeTrue(new RegExp(r"\u048b", caseSensitive: false).hasMatch("\u048b"));
-  shouldBeFalse(new RegExp(r"\u048c", caseSensitive: false).hasMatch("\u048b"));
-  shouldBeTrue(
-      new RegExp(r"[\u0489-\u048a]", caseSensitive: false).hasMatch("\u048b"));
-  shouldBeTrue(
-      new RegExp(r"[\u048b-\u048c]", caseSensitive: false).hasMatch("\u048a"));
-
-  // Test an unaligned alternating capitalization pair.
-  shouldBeFalse(new RegExp(r"\u04c4", caseSensitive: false).hasMatch("\u04c5"));
-  shouldBeTrue(new RegExp(r"\u04c5", caseSensitive: false).hasMatch("\u04c5"));
-  shouldBeTrue(new RegExp(r"\u04c6", caseSensitive: false).hasMatch("\u04c5"));
-  shouldBeFalse(new RegExp(r"\u04c7", caseSensitive: false).hasMatch("\u04c5"));
-  shouldBeFalse(new RegExp(r"\u04c4", caseSensitive: false).hasMatch("\u04c6"));
-  shouldBeTrue(new RegExp(r"\u04c5", caseSensitive: false).hasMatch("\u04c6"));
-  shouldBeTrue(new RegExp(r"\u04c6", caseSensitive: false).hasMatch("\u04c6"));
-  shouldBeFalse(new RegExp(r"\u04c7", caseSensitive: false).hasMatch("\u04c6"));
-  shouldBeTrue(
-      new RegExp(r"[\u04c4-\u04c5]", caseSensitive: false).hasMatch("\u04c6"));
-  shouldBeTrue(
-      new RegExp(r"[\u04c6-\u04c7]", caseSensitive: false).hasMatch("\u04c5"));
-
-  var successfullyParsed = true;
-}
diff --git a/tests/corelib_2/regexp/v8_regexp_utils.dart b/tests/corelib_2/regexp/v8_regexp_utils.dart
deleted file mode 100644
index 0a5e1869715..00000000000
--- a/tests/corelib_2/regexp/v8_regexp_utils.dart
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Utility functions to easily port V8 tests.
-
-import "package:expect/expect.dart";
-
-void assertEquals(actual, expected, [String message = null]) {
-  Expect.equals(actual, expected, message);
-}
-
-void assertTrue(actual, [String message = null]) {
-  Expect.isTrue(actual, message);
-}
-
-void assertFalse(actual, [String message = null]) {
-  Expect.isFalse(actual, message);
-}
-
-void assertThrows(fn, [num testid = null]) {
-  Expect.throws(fn, null, "Test $testid");
-}
-
-void assertDoesNotThrow(fn, [num testid = null]) {
-  fn();
-}
-
-void assertNull(actual, [num testid = null]) {
-  Expect.isNull(actual, "Test $testid");
-}
-
-void assertToStringEquals(str, match, num testid) {
-  var actual = [];
-  for (int i = 0; i <= match.groupCount; i++) {
-    var g = match.group(i);
-    actual.add((g == null) ? "" : g);
-  }
-  Expect.equals(str, actual.join(","), "Test $testid");
-}
-
-void shouldBeTrue(actual) {
-  Expect.isTrue(actual);
-}
-
-void shouldBeFalse(actual) {
-  Expect.isFalse(actual);
-}
-
-void shouldBeNull(actual) {
-  Expect.isNull(actual);
-}
-
-void shouldBe(actual, expected, [String message = null]) {
-  if (expected == null) {
-    Expect.isNull(actual, message);
-  } else {
-    Expect.equals(expected.length, actual.groupCount + 1);
-    for (int i = 0; i <= actual.groupCount; i++) {
-      Expect.equals(expected[i], actual.group(i), message);
-    }
-  }
-}
-
-Match firstMatch(String str, RegExp pattern) => pattern.firstMatch(str);
-List<String> allStringMatches(String str, RegExp pattern) =>
-    pattern.allMatches(str).map((Match m) => m.group(0)).toList();
-
-void description(str) {}
diff --git a/tests/corelib_2/regexp/zero-length-alternatives_test.dart b/tests/corelib_2/regexp/zero-length-alternatives_test.dart
deleted file mode 100644
index fb80f2c64fb..00000000000
--- a/tests/corelib_2/regexp/zero-length-alternatives_test.dart
+++ /dev/null
@@ -1,281 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. All rights reserved.
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1.  Redistributions of source code must retain the above copyright
-//     notice, this list of conditions and the following disclaimer.
-// 2.  Redistributions in binary form must reproduce the above copyright
-//     notice, this list of conditions and the following disclaimer in the
-//     documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
-// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// @dart = 2.9
-
-import 'v8_regexp_utils.dart';
-import 'package:expect/expect.dart';
-
-void main() {
-  description(
-      'Test regular expression processing with alternatives that match consuming no characters');
-
-  var emptyStr = "";
-  var s1 = "xxxx";
-  var s2 = "aaaa";
-  var s3 = "aax";
-  var s4 = "abab";
-  var s5 = "ab";
-  var s6 = "xabx";
-  var s7 = "g0";
-
-  // Non-capturing empty first alternative greedy '*'
-  var re1 = new RegExp(r"(?:|a|z)*");
-  shouldBe(firstMatch(emptyStr, re1), [""]);
-  shouldBe(firstMatch(s1, re1), [""]);
-  shouldBe(firstMatch(s2, re1), ["aaaa"]);
-  shouldBe(firstMatch(s3, re1), ["aa"]);
-
-  // Non-capturing empty middle alternative greedy '*'
-  var re2 = new RegExp(r"(?:a||z)*");
-  shouldBe(firstMatch(emptyStr, re2), [""]);
-  shouldBe(firstMatch(s1, re2), [""]);
-  shouldBe(firstMatch(s2, re2), ["aaaa"]);
-  shouldBe(firstMatch(s3, re2), ["aa"]);
-
-  // Non-capturing empty last alternative greedy '*'
-  var re3 = new RegExp(r"(?:a|z|)*");
-  shouldBe(firstMatch(emptyStr, re3), [""]);
-  shouldBe(firstMatch(s1, re3), [""]);
-  shouldBe(firstMatch(s2, re3), ["aaaa"]);
-  shouldBe(firstMatch(s3, re3), ["aa"]);
-
-  // Capturing empty first alternative greedy '*'
-  var re4 = new RegExp(r"(|a|z)*");
-  shouldBe(firstMatch(emptyStr, re4), ["", null]);
-  shouldBe(firstMatch(s1, re4), ["", null]);
-  shouldBe(firstMatch(s2, re4), ["aaaa", "a"]);
-  shouldBe(firstMatch(s3, re4), ["aa", "a"]);
-
-  // Capturing empty middle alternative greedy '*'
-  var re5 = new RegExp(r"(a||z)*");
-  shouldBe(firstMatch(emptyStr, re5), ["", null]);
-  shouldBe(firstMatch(s1, re5), ["", null]);
-  shouldBe(firstMatch(s2, re5), ["aaaa", "a"]);
-  shouldBe(firstMatch(s3, re5), ["aa", "a"]);
-
-  // Capturing empty last alternative greedy '*'
-  var re6 = new RegExp(r"(a|z|)*");
-  shouldBe(firstMatch(emptyStr, re6), ["", null]);
-  shouldBe(firstMatch(s1, re6), ["", null]);
-  shouldBe(firstMatch(s2, re6), ["aaaa", "a"]);
-  shouldBe(firstMatch(s3, re6), ["aa", "a"]);
-
-  // Non-capturing empty first alternative fixed-count
-  var re7 = new RegExp(r"(?:|a|z){2,5}");
-  shouldBe(firstMatch(emptyStr, re7), [""]);
-  shouldBe(firstMatch(s1, re7), [""]);
-  shouldBe(firstMatch(s2, re7), ["aaa"]);
-  shouldBe(firstMatch(s3, re7), ["aa"]);
-
-  // Non-capturing empty middle alternative fixed-count
-  var re8 = new RegExp(r"(?:a||z){2,5}");
-  shouldBe(firstMatch(emptyStr, re8), [""]);
-  shouldBe(firstMatch(s1, re8), [""]);
-  shouldBe(firstMatch(s2, re8), ["aaaa"]);
-  shouldBe(firstMatch(s3, re8), ["aa"]);
-
-  // Non-capturing empty last alternative fixed-count
-  var re9 = new RegExp(r"(?:a|z|){2,5}");
-  shouldBe(firstMatch(emptyStr, re9), [""]);
-  shouldBe(firstMatch(s1, re9), [""]);
-  shouldBe(firstMatch(s2, re9), ["aaaa"]);
-  shouldBe(firstMatch(s3, re9), ["aa"]);
-
-  // Non-capturing empty first alternative non-greedy '*'
-  var re10 = new RegExp(r"(?:|a|z)*?");
-  shouldBe(firstMatch(emptyStr, re10), [""]);
-  shouldBe(firstMatch(s1, re10), [""]);
-  shouldBe(firstMatch(s2, re10), [""]);
-  shouldBe(firstMatch(s3, re10), [""]);
-
-  // Non-capturing empty middle alternative non-greedy '*'
-  var re11 = new RegExp(r"(?:a||z)*?");
-  shouldBe(firstMatch(emptyStr, re11), [""]);
-  shouldBe(firstMatch(s1, re11), [""]);
-  shouldBe(firstMatch(s2, re11), [""]);
-  shouldBe(firstMatch(s3, re11), [""]);
-
-  // Non-capturing empty last alternative non-greedy '*'
-  var re12 = new RegExp(r"(?:a|z|)*?");
-  shouldBe(firstMatch(emptyStr, re12), [""]);
-  shouldBe(firstMatch(s1, re12), [""]);
-  shouldBe(firstMatch(s2, re12), [""]);
-  shouldBe(firstMatch(s3, re12), [""]);
-
-  // Capturing empty first alternative non-greedy '*'
-  var re13 = new RegExp(r"(|a|z)*?");
-  shouldBe(firstMatch(emptyStr, re13), ["", null]);
-  shouldBe(firstMatch(s1, re13), ["", null]);
-  shouldBe(firstMatch(s2, re13), ["", null]);
-  shouldBe(firstMatch(s3, re13), ["", null]);
-
-  // Capturing empty middle alternative non-greedy '*'
-  var re14 = new RegExp(r"(a||z)*?");
-  shouldBe(firstMatch(emptyStr, re14), ["", null]);
-  shouldBe(firstMatch(s1, re14), ["", null]);
-  shouldBe(firstMatch(s2, re14), ["", null]);
-  shouldBe(firstMatch(s3, re14), ["", null]);
-
-  // Capturing empty last alternative non-greedy '*'
-  var re15 = new RegExp(r"(a|z|)*?");
-  shouldBe(firstMatch(emptyStr, re15), ["", null]);
-  shouldBe(firstMatch(s1, re15), ["", null]);
-  shouldBe(firstMatch(s2, re15), ["", null]);
-  shouldBe(firstMatch(s3, re15), ["", null]);
-
-  // Non-capturing empty first alternative greedy '?'
-  var re16 = new RegExp(r"(?:|a|z)?");
-  shouldBe(firstMatch(emptyStr, re16), [""]);
-  shouldBe(firstMatch(s1, re16), [""]);
-  shouldBe(firstMatch(s2, re16), ["a"]);
-  shouldBe(firstMatch(s3, re16), ["a"]);
-
-  // Non-capturing empty middle alternative greedy '?'
-  var re17 = new RegExp(r"(?:a||z)?");
-  shouldBe(firstMatch(emptyStr, re17), [""]);
-  shouldBe(firstMatch(s1, re17), [""]);
-  shouldBe(firstMatch(s2, re17), ["a"]);
-  shouldBe(firstMatch(s3, re17), ["a"]);
-
-  // Non-capturing empty last alternative greedy '?'
-  var re18 = new RegExp(r"(?:a|z|)?");
-  shouldBe(firstMatch(emptyStr, re18), [""]);
-  shouldBe(firstMatch(s1, re18), [""]);
-  shouldBe(firstMatch(s2, re18), ["a"]);
-  shouldBe(firstMatch(s3, re18), ["a"]);
-
-  // Capturing empty first alternative greedy '?'
-  var re19 = new RegExp(r"(|a|z)?");
-  shouldBe(firstMatch(emptyStr, re19), ["", null]);
-  shouldBe(firstMatch(s1, re19), ["", null]);
-  shouldBe(firstMatch(s2, re19), ["a", "a"]);
-  shouldBe(firstMatch(s3, re19), ["a", "a"]);
-
-  // Capturing empty middle alternative greedy '?'
-  var re20 = new RegExp(r"(a||z)?");
-  shouldBe(firstMatch(emptyStr, re20), ["", null]);
-  shouldBe(firstMatch(s1, re20), ["", null]);
-  shouldBe(firstMatch(s2, re20), ["a", "a"]);
-  shouldBe(firstMatch(s3, re20), ["a", "a"]);
-
-  // Capturing empty last alternative greedy '?'
-  var re21 = new RegExp(r"(a|z|)?");
-  shouldBe(firstMatch(emptyStr, re21), ["", null]);
-  shouldBe(firstMatch(s1, re21), ["", null]);
-  shouldBe(firstMatch(s2, re21), ["a", "a"]);
-  shouldBe(firstMatch(s3, re21), ["a", "a"]);
-
-  // Non-capturing empty first alternative non-greedy '?'
-  var re22 = new RegExp(r"(?:|a|z)??");
-  shouldBe(firstMatch(emptyStr, re22), [""]);
-  shouldBe(firstMatch(s1, re22), [""]);
-  shouldBe(firstMatch(s2, re22), [""]);
-  shouldBe(firstMatch(s3, re22), [""]);
-
-  // Non-capturing empty middle alternative non-greedy '?'
-  var re23 = new RegExp(r"(?:a||z)??");
-  shouldBe(firstMatch(emptyStr, re23), [""]);
-  shouldBe(firstMatch(s1, re23), [""]);
-  shouldBe(firstMatch(s2, re23), [""]);
-  shouldBe(firstMatch(s3, re23), [""]);
-
-  // Non-capturing empty last alternative non-greedy '?'
-  var re24 = new RegExp(r"(?:a|z|)??");
-  shouldBe(firstMatch(emptyStr, re24), [""]);
-  shouldBe(firstMatch(s1, re24), [""]);
-  shouldBe(firstMatch(s2, re24), [""]);
-  shouldBe(firstMatch(s3, re24), [""]);
-
-  // Capturing empty first alternative non-greedy '?'
-  var re25 = new RegExp(r"(|a|z)??");
-  shouldBe(firstMatch(emptyStr, re25), ["", null]);
-  shouldBe(firstMatch(s1, re25), ["", null]);
-  shouldBe(firstMatch(s2, re25), ["", null]);
-  shouldBe(firstMatch(s3, re25), ["", null]);
-
-  // Capturing empty middle alternative non-greedy '?'
-  var re26 = new RegExp(r"(a||z)??");
-  shouldBe(firstMatch(emptyStr, re26), ["", null]);
-  shouldBe(firstMatch(s1, re26), ["", null]);
-  shouldBe(firstMatch(s2, re26), ["", null]);
-  shouldBe(firstMatch(s3, re26), ["", null]);
-
-  // Capturing empty last alternative non-greedy '?'
-  var re27 = new RegExp(r"(a|z|)??");
-  shouldBe(firstMatch(emptyStr, re27), ["", null]);
-  shouldBe(firstMatch(s1, re27), ["", null]);
-  shouldBe(firstMatch(s2, re27), ["", null]);
-  shouldBe(firstMatch(s3, re27), ["", null]);
-
-  // Non-capturing empty first alternative greedy '*' non-terminal
-  var re28 = new RegExp(r"(?:|a|z)*x");
-  shouldBe(firstMatch(emptyStr, re28), null);
-  shouldBe(firstMatch(s1, re28), ["x"]);
-  shouldBe(firstMatch(s2, re28), null);
-  shouldBe(firstMatch(s3, re28), ["aax"]);
-
-  // Non-capturing empty middle alternative greedy '*' non-terminal
-  var re29 = new RegExp(r"(?:a||z)*x");
-  shouldBe(firstMatch(emptyStr, re29), null);
-  shouldBe(firstMatch(s1, re29), ["x"]);
-  shouldBe(firstMatch(s2, re29), null);
-  shouldBe(firstMatch(s3, re29), ["aax"]);
-
-  // Non-capturing empty last alternative greedy '*' non-terminal
-  var re30 = new RegExp(r"(?:a|z|)*x");
-  shouldBe(firstMatch(emptyStr, re30), null);
-  shouldBe(firstMatch(s1, re30), ["x"]);
-  shouldBe(firstMatch(s2, re30), null);
-  shouldBe(firstMatch(s3, re30), ["aax"]);
-
-  // Non-capturing two possibly empty alternatives greedy '*'
-  var re31 = new RegExp(r"(?:a*|b*)*");
-  shouldBe(firstMatch(emptyStr, re31), [""]);
-  shouldBe(firstMatch(s1, re31), [""]);
-  shouldBe(firstMatch(s3, re31), ["aa"]);
-  shouldBe(firstMatch(s4, re31), ["abab"]);
-
-  // Non-capturing two possibly empty non-greedy alternatives non-greedy '*'
-  var re32 = new RegExp(r"(?:a*?|b*?)*");
-  shouldBe(firstMatch(emptyStr, re32), [""]);
-  shouldBe(firstMatch(s1, re32), [""]);
-  shouldBe(firstMatch(s2, re32), ["aaaa"]);
-  shouldBe(firstMatch(s4, re32), ["abab"]);
-  shouldBe(firstMatch(s5, re32), ["ab"]);
-  shouldBe(firstMatch(s6, re32), [""]);
-
-  // Three possibly empty alternatives with greedy +
-  var re33 = new RegExp(r"(?:(?:(?!))|g?|0*\*?)+");
-  shouldBe(firstMatch(emptyStr, re33), [""]);
-  shouldBe(firstMatch(s1, re33), [""]);
-  shouldBe(firstMatch(s7, re33), ["g0"]);
-
-  // first alternative zero length fixed count
-  var re34 = new RegExp(r"(?:|a)");
-  shouldBe(firstMatch(emptyStr, re34), [""]);
-  shouldBe(firstMatch(s1, re34), [""]);
-  shouldBe(firstMatch(s2, re34), [""]);
-  shouldBe(firstMatch(s3, re34), [""]);
-}
diff --git a/tests/corelib_2/regress_11099_test.dart b/tests/corelib_2/regress_11099_test.dart
deleted file mode 100644
index 8a0bb39b9cd..00000000000
--- a/tests/corelib_2/regress_11099_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-void main() {
-  var l = [new MyTest(1), new MyTest(5), new MyTest(3)];
-  l.sort();
-  if (l.toString() != "[d{1}, d{3}, d{5}]") throw 'Wrong result!';
-}
-
-class MyTest implements Comparable<MyTest> {
-  final int a;
-  MyTest(this.a);
-  int compareTo(MyTest b) => this.a - b.a;
-  String toString() => "d{$a}";
-}
diff --git a/tests/corelib_2/regress_33166_test.dart b/tests/corelib_2/regress_33166_test.dart
deleted file mode 100644
index 65e7cba739b..00000000000
--- a/tests/corelib_2/regress_33166_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import "package:expect/expect.dart";
-
-// Regression test for https://github.com/dart-lang/sdk/issues/33166
-void main() async {
-  // Check that a `null` data handler (like the one passe by `drain`)
-  // doesn't crash.
-  {
-    var stream = new Stream<Object>.fromIterable([1, 2, 3]);
-    Expect.equals(await stream.cast<int>().drain().then((_) => 'Done'), 'Done');
-  }
-
-  // Check that type errors go into stream error channel.
-  {
-    var stream = new Stream<Object>.fromIterable([1, 2, 3]);
-    var errors = [];
-    var done = new Completer();
-    var subscription = stream.cast<String>().listen((value) {
-      Expect.fail("Unexpected value: $value");
-    }, onError: (e, s) {
-      errors.add(e);
-    }, onDone: () {
-      done.complete(null);
-    });
-    await done.future;
-    Expect.equals(3, errors.length);
-  }
-}
diff --git a/tests/corelib_2/regress_42011_test.dart b/tests/corelib_2/regress_42011_test.dart
deleted file mode 100644
index 96c9f2f68c3..00000000000
--- a/tests/corelib_2/regress_42011_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for https://github.com/dart-lang/sdk/issues/42011
-main() {
-  var a = [];
-  // No elements are added, so should not get a ConcurrentModificationError.
-  a.addAll(a);
-}
diff --git a/tests/corelib_2/regress_r21715_test.dart b/tests/corelib_2/regress_r21715_test.dart
deleted file mode 100644
index f3b0eb114ff..00000000000
--- a/tests/corelib_2/regress_r21715_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--optimization_counter_threshold=5 --no-background_compilation
-
-import "package:expect/expect.dart";
-
-sll(x, shift) => x << shift;
-
-main() {
-  for (int i = 0; i < 10; i++) {
-    var x = 0x50000000;
-    var shift = 34;
-    Expect.equals(sll(x, shift), 0x4000000000000000);
-  }
-}
diff --git a/tests/corelib_2/safe_to_string_test.dart b/tests/corelib_2/safe_to_string_test.dart
deleted file mode 100644
index 9878fee7ae5..00000000000
--- a/tests/corelib_2/safe_to_string_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.stringEquals('1', Error.safeToString(1));
-  Expect.stringEquals('0.5', Error.safeToString(0.5));
-  Expect.stringEquals('"1"', Error.safeToString("1"));
-  Expect.stringEquals('"\'"', Error.safeToString("'"));
-  Expect.stringEquals('"\'\'"', Error.safeToString("''"));
-  Expect.stringEquals(r'"\""', Error.safeToString('"'));
-  Expect.stringEquals(r'"\"\""', Error.safeToString('""'));
-
-  Expect.stringEquals(r'"\\\"\n\r"', Error.safeToString('\\"\n\r'));
-
-  Expect.stringEquals(r'"\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007"',
-      Error.safeToString('\x00\x01\x02\x03\x04\x05\x06\x07'));
-  Expect.stringEquals(r'"\b\t\n\u000b\f\r\u000e\u000f"',
-      Error.safeToString('\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f'));
-  Expect.stringEquals(r'"\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017"',
-      Error.safeToString('\x10\x11\x12\x13\x14\x15\x16\x17'));
-  Expect.stringEquals(r'"\u0018\u0019\u001a\u001b\u001c\u001d\u001e\u001f"',
-      Error.safeToString('\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f'));
-  Expect.stringEquals('" "', Error.safeToString(" "));
-
-  Expect.stringEquals('null', Error.safeToString(null));
-  Expect.stringEquals('true', Error.safeToString(true));
-  Expect.stringEquals('false', Error.safeToString(false));
-  // The class name may be minified.
-  String className = "$Object";
-  Expect.stringEquals(
-      "Instance of '$className'", Error.safeToString(new Object()));
-}
diff --git a/tests/corelib_2/set_containsAll_test.dart b/tests/corelib_2/set_containsAll_test.dart
deleted file mode 100644
index 6bd9f723359..00000000000
--- a/tests/corelib_2/set_containsAll_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  const A();
-}
-
-class B extends A {
-  const B();
-}
-
-main() {
-  var set1 = new Set<B>();
-  set1.add(const B());
-  var set2 = new Set<B>();
-  var list = <B>[const B()];
-  var set3 = list.toSet();
-
-  var sets = [set1, set2, set3];
-  for (var setToTest in sets) {
-    Expect.isFalse(setToTest.containsAll(<A>[new A()]));
-  }
-}
diff --git a/tests/corelib_2/set_contains_test.dart b/tests/corelib_2/set_contains_test.dart
deleted file mode 100644
index c292d91d987..00000000000
--- a/tests/corelib_2/set_contains_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  const A();
-}
-
-class B extends A {
-  const B();
-}
-
-main() {
-  var set1 = new Set<B>();
-  set1.add(const B());
-  var set2 = new Set<B>();
-  var list = <B>[const B()];
-  var set3 = list.toSet();
-
-  var sets = [set1, set2, set3];
-  for (var setToTest in sets) {
-    // Test that the set accepts a value that is not of the same type
-    //   Set<B>.contains(A)
-    Expect.isFalse(setToTest.contains(new A()));
-  }
-}
diff --git a/tests/corelib_2/set_intersection_test.dart b/tests/corelib_2/set_intersection_test.dart
deleted file mode 100644
index abf1f14510f..00000000000
--- a/tests/corelib_2/set_intersection_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  const A();
-}
-
-class B extends A {
-  const B();
-}
-
-main() {
-  var set1 = new Set<B>();
-  set1.add(const B());
-  var set2 = new Set<B>();
-  var list = <B>[const B()];
-  var set3 = list.toSet();
-
-  var setOther = new Set<A>();
-  setOther.add(new A());
-  var sets = [set1, set2, set3];
-  for (var setToTest in sets) {
-    // Test that the set accepts another set that is not of the same type:
-    //   Set<B>.intersection(Set<A>)
-    Set result = setToTest.intersection(setOther);
-    Expect.isTrue(result.isEmpty);
-  }
-}
diff --git a/tests/corelib_2/set_iterator_test.dart b/tests/corelib_2/set_iterator_test.dart
deleted file mode 100644
index d904f46ad42..00000000000
--- a/tests/corelib_2/set_iterator_test.dart
+++ /dev/null
@@ -1,148 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class FixedHashCode {
-  final int _hashCode;
-  const FixedHashCode(this._hashCode);
-  int get hashCode {
-    return _hashCode;
-  }
-}
-
-class SetIteratorTest {
-  static testMain() {
-    testSmallSet();
-    testLargeSet();
-    testEmptySet();
-    testSetWithDeletedEntries();
-    testBug5116829();
-    testDifferentSizes();
-    testDifferentHashCodes();
-  }
-
-  static int sum(int expected, Iterator<int> it) {
-    int count = 0;
-    while (it.moveNext()) {
-      count += it.current;
-    }
-    Expect.equals(expected, count);
-  }
-
-  static void testSmallSet() {
-    Set<int> set = new Set<int>();
-    set.add(1);
-    set.add(2);
-    set.add(3);
-
-    Iterator<int> it = set.iterator;
-    sum(6, it);
-    Expect.isFalse(it.moveNext());
-    Expect.isNull(it.current);
-  }
-
-  static void testLargeSet() {
-    Set<int> set = new Set<int>();
-    int count = 0;
-    for (int i = 0; i < 100; i++) {
-      count += i;
-      set.add(i);
-    }
-    Iterator<int> it = set.iterator;
-    sum(count, it);
-    Expect.isFalse(it.moveNext());
-    Expect.isNull(it.current);
-  }
-
-  static void testEmptySet() {
-    Set<int> set = new Set<int>();
-    Iterator<int> it = set.iterator;
-    sum(0, it);
-    Expect.isFalse(it.moveNext());
-    Expect.isNull(it.current);
-  }
-
-  static void testSetWithDeletedEntries() {
-    Set<int> set = new Set<int>();
-    for (int i = 0; i < 100; i++) {
-      set.add(i);
-    }
-    for (int i = 0; i < 100; i++) {
-      set.remove(i);
-    }
-    Iterator<int> it = set.iterator;
-    Expect.isFalse(it.moveNext());
-    it = set.iterator;
-    sum(0, it);
-    Expect.isFalse(it.moveNext());
-    Expect.isNull(it.current);
-
-    int count = 0;
-    for (int i = 0; i < 100; i++) {
-      set.add(i);
-      if (i % 2 == 0)
-        set.remove(i);
-      else
-        count += i;
-    }
-    it = set.iterator;
-    sum(count, it);
-    Expect.isFalse(it.moveNext());
-    Expect.isNull(it.current);
-  }
-
-  static void testBug5116829() {
-    // During iteration we skipped slot 0 of the hashset's key list. "A" was
-    // hashed to slot 0 and therefore triggered the bug.
-    Set<String> mystrs = new Set<String>();
-    mystrs.add("A");
-    int seen = 0;
-    for (String elt in mystrs) {
-      seen++;
-      Expect.equals("A", elt);
-    }
-    Expect.equals(1, seen);
-  }
-
-  static void testDifferentSizes() {
-    for (int i = 1; i < 20; i++) {
-      Set set = new Set();
-      int sum = 0;
-      for (int j = 0; j < i; j++) {
-        set.add(j);
-        sum += j;
-      }
-      int count = 0;
-      int controlSum = 0;
-      for (int x in set) {
-        controlSum += x;
-        count++;
-      }
-      Expect.equals(i, count);
-      Expect.equals(sum, controlSum);
-    }
-  }
-
-  static void testDifferentHashCodes() {
-    for (int i = -20; i < 20; i++) {
-      Set set = new Set();
-      var element = new FixedHashCode(i);
-      set.add(element);
-      Expect.equals(1, set.length);
-      bool foundIt = false;
-      for (var x in set) {
-        foundIt = true;
-        Expect.equals(true, identical(x, element));
-      }
-      Expect.equals(true, foundIt);
-    }
-  }
-}
-
-main() {
-  SetIteratorTest.testMain();
-}
diff --git a/tests/corelib_2/set_removeAll_test.dart b/tests/corelib_2/set_removeAll_test.dart
deleted file mode 100644
index f397c217877..00000000000
--- a/tests/corelib_2/set_removeAll_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  const A();
-}
-
-class B extends A {
-  const B();
-}
-
-main() {
-  var set1 = new Set<B>();
-  set1.add(const B());
-  var set2 = new Set<B>();
-  var list = <B>[const B()];
-  var set3 = list.toSet();
-
-  var sets = [set1, set2, set3];
-  for (var setToTest in sets) {
-    // Test that the set accepts a list that is not of the same type:
-    //   Set<B>.removeAll(List<A>)
-    Expect.isNull(setToTest.removeAll(<A>[new A()]) as dynamic);
-  }
-}
diff --git a/tests/corelib_2/set_remove_test.dart b/tests/corelib_2/set_remove_test.dart
deleted file mode 100644
index 4e917d7f78d..00000000000
--- a/tests/corelib_2/set_remove_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  const A();
-}
-
-class B extends A {
-  const B();
-}
-
-main() {
-  var set1 = new Set<B>();
-  set1.add(const B());
-  var set2 = new Set<B>();
-  var list = <B>[const B()];
-  var set3 = list.toSet();
-
-  var sets = [set1, set2, set3];
-  for (var setToTest in sets) {
-    // Test that the set accepts a value that is not of the same type
-    //   Set<B>.remove(A)
-    Expect.isFalse(setToTest.remove(new A()));
-  }
-}
diff --git a/tests/corelib_2/set_retainAll_test.dart b/tests/corelib_2/set_retainAll_test.dart
deleted file mode 100644
index c4e1f5bfbb3..00000000000
--- a/tests/corelib_2/set_retainAll_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  const A();
-}
-
-class B extends A {
-  const B();
-}
-
-main() {
-  var set1 = new Set<B>();
-  set1.add(const B());
-  var set2 = new Set<B>();
-  var list = <B>[const B()];
-  var set3 = list.toSet();
-
-  var sets = [set1, set2, set3];
-  for (var setToTest in sets) {
-    // Test that the set accepts a list that is not of the same type:
-    //   Set<B>.retainAll(List<A>)
-    setToTest.retainAll(<A>[new A()]);
-  }
-}
diff --git a/tests/corelib_2/set_test.dart b/tests/corelib_2/set_test.dart
deleted file mode 100644
index 1fb8211fe2e..00000000000
--- a/tests/corelib_2/set_test.dart
+++ /dev/null
@@ -1,621 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library set_test;
-
-import 'package:expect/expect.dart';
-import "dart:collection";
-
-void testMain(Set create()) {
-  testInts(create);
-  testStrings(create);
-  testInts(() => create().toSet());
-  testStrings(() => create().toSet());
-}
-
-void testInts(Set create()) {
-  Set set = create();
-
-  testLength(0, set);
-  Expect.isTrue(set.add(1));
-  testLength(1, set);
-  Expect.isTrue(set.contains(1));
-
-  Expect.isFalse(set.add(1));
-  testLength(1, set);
-  Expect.isTrue(set.contains(1));
-
-  Expect.isTrue(set.remove(1));
-  testLength(0, set);
-  Expect.isFalse(set.contains(1));
-
-  Expect.isFalse(set.remove(1));
-  testLength(0, set);
-  Expect.isFalse(set.contains(1));
-
-  for (int i = 0; i < 10; i++) {
-    set.add(i);
-  }
-
-  testLength(10, set);
-  for (int i = 0; i < 10; i++) {
-    Expect.isTrue(set.contains(i));
-  }
-
-  testLength(10, set);
-
-  for (int i = 10; i < 20; i++) {
-    Expect.isFalse(set.contains(i));
-  }
-
-  // Test Set.forEach.
-  int sum = 0;
-  testForEach(Object val) {
-    sum += ((val as int) + 1);
-  }
-
-  set.forEach(testForEach);
-  Expect.equals(10 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1, sum);
-
-  Expect.isTrue(set.containsAll(set));
-
-  // Test Set.map.
-  testMap(Object val) {
-    return (val as int) * (val as int);
-  }
-
-  Set mapped = set.map(testMap).toSet();
-  Expect.equals(10, mapped.length);
-
-  Expect.isTrue(mapped.contains(0));
-  Expect.isTrue(mapped.contains(1));
-  Expect.isTrue(mapped.contains(4));
-  Expect.isTrue(mapped.contains(9));
-  Expect.isTrue(mapped.contains(16));
-  Expect.isTrue(mapped.contains(25));
-  Expect.isTrue(mapped.contains(36));
-  Expect.isTrue(mapped.contains(49));
-  Expect.isTrue(mapped.contains(64));
-  Expect.isTrue(mapped.contains(81));
-
-  sum = 0;
-  set.forEach(testForEach);
-  Expect.equals(10 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1, sum);
-
-  sum = 0;
-
-  mapped.forEach(testForEach);
-  Expect.equals(1 + 2 + 5 + 10 + 17 + 26 + 37 + 50 + 65 + 82, sum);
-
-  // Test Set.filter.
-  testFilter(Object val) {
-    return (val as int).isEven;
-  }
-
-  Set filtered = set.where(testFilter).toSet();
-
-  Expect.equals(5, filtered.length);
-
-  Expect.isTrue(filtered.contains(0));
-  Expect.isTrue(filtered.contains(2));
-  Expect.isTrue(filtered.contains(4));
-  Expect.isTrue(filtered.contains(6));
-  Expect.isTrue(filtered.contains(8));
-
-  sum = 0;
-  filtered.forEach(testForEach);
-  Expect.equals(1 + 3 + 5 + 7 + 9, sum);
-
-  Expect.isTrue(set.containsAll(filtered));
-
-  // Test Set.every.
-  testEvery(Object val) {
-    return ((val as int) < 10);
-  }
-
-  Expect.isTrue(set.every(testEvery));
-  Expect.isTrue(filtered.every(testEvery));
-
-  filtered.add(10);
-  Expect.isFalse(filtered.every(testEvery));
-
-  // Test Set.some.
-  testSome(Object val) {
-    return (val == 4);
-  }
-
-  Expect.isTrue(set.any(testSome));
-  Expect.isTrue(filtered.any(testSome));
-  filtered.remove(4);
-  Expect.isFalse(filtered.any(testSome));
-
-  // Test Set.intersection.
-  Set intersection = set.intersection(filtered);
-  Expect.isTrue(set.contains(0));
-  Expect.isTrue(set.contains(2));
-  Expect.isTrue(set.contains(6));
-  Expect.isTrue(set.contains(8));
-  Expect.isFalse(intersection.contains(1));
-  Expect.isFalse(intersection.contains(3));
-  Expect.isFalse(intersection.contains(4));
-  Expect.isFalse(intersection.contains(5));
-  Expect.isFalse(intersection.contains(7));
-  Expect.isFalse(intersection.contains(9));
-  Expect.isFalse(intersection.contains(10));
-  Expect.equals(4, intersection.length);
-
-  Expect.isTrue(set.containsAll(intersection));
-  Expect.isTrue(filtered.containsAll(intersection));
-
-  // Test Set.union.
-  Set twice = create()..addAll([0, 2, 4, 6, 8, 10, 12, 14]);
-  Set thrice = create()..addAll([0, 3, 6, 9, 12, 15]);
-  Set union = twice.union(thrice);
-  Expect.equals(11, union.length);
-  for (int i = 0; i < 16; i++) {
-    Expect.equals(i.isEven || (i % 3) == 0, union.contains(i));
-  }
-
-  // Test Set.difference.
-  Set difference = twice.difference(thrice);
-  Expect.equals(5, difference.length);
-  for (int i = 0; i < 16; i++) {
-    Expect.equals(i.isEven && (i % 3) != 0, difference.contains(i));
-  }
-  Expect.isTrue(twice.difference(thrice).difference(twice).isEmpty);
-
-  // Test Set.difference with non-element type.
-  Set diffSet = create()..addAll([0, 1, 2, 499, 999]);
-  Set<Object> objectSet = new Set<Object>();
-  objectSet.add("foo");
-  objectSet.add(499);
-  Set diffResult = diffSet.difference(objectSet);
-  Expect.equals(4, diffResult.length);
-  for (int value in [0, 1, 2, 999]) {
-    Expect.isTrue(diffResult.contains(value));
-  }
-
-  // Test Set.addAll.
-  List list = new List.filled(10, null);
-  for (int i = 0; i < 10; i++) {
-    list[i] = i + 10;
-  }
-  set.addAll(list);
-  testLength(20, set);
-  for (int i = 0; i < 20; i++) {
-    Expect.isTrue(set.contains(i));
-  }
-
-  // Test Set.removeAll
-  set.removeAll(list);
-  testLength(10, set);
-  for (int i = 0; i < 10; i++) {
-    Expect.isTrue(set.contains(i));
-  }
-  for (int i = 10; i < 20; i++) {
-    Expect.isFalse(set.contains(i));
-  }
-
-  // Test Set.clear.
-  set.clear();
-  testLength(0, set);
-  Expect.isTrue(set.add(11));
-  testLength(1, set);
-
-  // Test Set.toSet.
-  set.add(1);
-  set.add(21);
-  testLength(3, set);
-  var set2 = set.toSet();
-  testLength(3, set2);
-  Expect.listEquals(set.toList(), set2.toList());
-  set.add(31);
-  testLength(4, set);
-  testLength(3, set2);
-
-  set2 = set.toSet()..clear();
-  testLength(0, set2);
-  Expect.isTrue(set2.add(11));
-  Expect.isTrue(set2.add(1));
-  Expect.isTrue(set2.add(21));
-  Expect.isTrue(set2.add(31));
-  testLength(4, set2);
-  Expect.listEquals(set.toList(), set2.toList());
-
-  set2 = (set.toSet()..clear()).toSet(); // Cloning empty set shouldn't fail.
-  testLength(0, set2);
-}
-
-void testLength(int length, Set set) {
-  Expect.equals(length, set.length);
-  (length == 0 ? Expect.isTrue : Expect.isFalse)(set.isEmpty);
-  (length != 0 ? Expect.isTrue : Expect.isFalse)(set.isNotEmpty);
-  if (length == 0) {
-    for (var e in set) {
-      Expect.fail("contains element when iterated: $e");
-    }
-  }
-  (length == 0 ? Expect.isFalse : Expect.isTrue)(set.iterator.moveNext());
-}
-
-void testStrings(Set create()) {
-  var set = create();
-  var strings = ["foo", "bar", "baz", "qux", "fisk", "hest", "svin", "pigvar"];
-  set.addAll(strings);
-  testLength(8, set);
-  set.removeAll(strings.where((x) => x.length == 3));
-  testLength(4, set);
-  Expect.isTrue(set.add("bar"));
-  Expect.isTrue(set.add("qux"));
-  testLength(6, set);
-  set.addAll(strings);
-  testLength(8, set);
-  set.removeWhere((x) => x.length != 3);
-  testLength(4, set);
-  set.retainWhere((x) => x[1] == "a");
-  testLength(2, set);
-  Expect.isTrue(set.containsAll(["baz", "bar"]));
-
-  set = set.union(strings.where((x) => x.length != 3).toSet());
-  testLength(6, set);
-  set = set.intersection(["qux", "baz", "fisk", "egern"].toSet());
-  testLength(2, set);
-  Expect.isTrue(set.containsAll(["baz", "fisk"]));
-}
-
-void testTypeAnnotations(Set<int> set) {
-  set.add(0);
-  set.add(999);
-  set.add(0x800000000);
-  set.add(0x20000000000000);
-  Expect.isFalse(set.contains("not an it"));
-  Expect.isFalse(set.remove("not an it"));
-  Expect.isFalse(set.containsAll(["Not an int", "Also no an int"]));
-
-  testLength(4, set);
-  set.removeAll(["Not an int", 999, "Also no an int"]);
-  testLength(3, set);
-  set.retainAll(["Not an int", 0, "Also no an int"]);
-  testLength(1, set);
-}
-
-void testRetainWhere(
-    Set<CE> create(
-        [CEEq equals, CEHash hashCode, ValidKey validKey, CECompare compare])) {
-  // The retainWhere method must not collapse the argument Iterable
-  // in a way that doesn't match the equality of the set.
-  // It must not throw away equal elements that are different in the
-  // equality of the set.
-  // It must not consider objects to be not there if they are equal
-  // in the equality of the set.
-
-  // If set equality is natural equality, using different but equal objects
-  // must work. Can't use an identity set internally (as was done at some point
-  // during development).
-  var set = create();
-  set.addAll([new CE(0), new CE(1), new CE(2)]);
-  Expect.equals(3, set.length); // All different.
-  set.retainAll([new CE(0), new CE(2)]);
-  Expect.equals(2, set.length);
-  Expect.isTrue(set.contains(new CE(0)));
-  Expect.isTrue(set.contains(new CE(2)));
-
-  // If equality of set is identity, we can't internally use a non-identity
-  // based set because it might throw away equal objects that are not identical.
-  var elems = [new CE(0), new CE(1), new CE(2), new CE(0)];
-  set = create(identical, null, null, identityCompare);
-  set.addAll(elems);
-  Expect.equals(4, set.length);
-  set.retainAll([elems[0], elems[2], elems[3]]);
-  Expect.equals(3, set.length);
-  Expect.isTrue(set.contains(elems[0]));
-  Expect.isTrue(set.contains(elems[2]));
-  Expect.isTrue(set.contains(elems[3]));
-
-  // If set equality is less precise than equality, we must not use equality
-  // internally to see if the element is there:
-  set = create(customEq(3), customHash(3), validKey, customCompare(3));
-  set.addAll([new CE(0), new CE(1), new CE(2)]);
-  Expect.equals(3, set.length);
-  set.retainAll([new CE(3), new CE(5)]);
-  Expect.equals(2, set.length);
-  Expect.isTrue(set.contains(new CE(6)));
-  Expect.isTrue(set.contains(new CE(8)));
-
-  // It shouldn't matter if the input is a set.
-  set.clear();
-  set.addAll([new CE(0), new CE(1), new CE(2)]);
-  Expect.equals(3, set.length);
-  set.retainAll(new Set.from([new CE(3), new CE(5)]));
-  Expect.equals(2, set.length);
-  Expect.isTrue(set.contains(new CE(6)));
-  Expect.isTrue(set.contains(new CE(8)));
-}
-
-void testDifferenceIntersection(create([equals, hashCode, validKey, compare])) {
-  // Test that elements of intersection comes from receiver set.
-  CE ce1a = new CE(1);
-  CE ce1b = new CE(1);
-  CE ce2 = new CE(2);
-  CE ce3 = new CE(3);
-  Expect.equals(ce1a, ce1b); // Sanity check.
-
-  var set1 = create();
-  var set2 = create();
-  set1.add(ce1a);
-  set1.add(ce2);
-  set2.add(ce1b);
-  set2.add(ce3);
-
-  var difference = set1.difference(set2);
-  testLength(1, difference);
-  Expect.identical(ce2, difference.lookup(ce2));
-
-  difference = set2.difference(set1);
-  testLength(1, difference);
-  Expect.identical(ce3, difference.lookup(ce3));
-
-  // Difference uses other.contains to check for equality.
-  var set3 = create(identical, identityHashCode, null, identityCompare);
-  set3.add(ce1b);
-  difference = set1.difference(set3);
-  testLength(2, difference); // ce1a is not identical to element in set3.
-  Expect.identical(ce1a, difference.lookup(ce1a));
-  Expect.identical(ce2, difference.lookup(ce2));
-
-  // Intersection always takes elements from receiver set.
-  var intersection = set1.intersection(set2);
-  testLength(1, intersection);
-  Expect.identical(ce1a, intersection.lookup(ce1a));
-
-  intersection = set1.intersection(set3);
-  testLength(0, intersection);
-}
-
-// Objects that are equal based on data.
-class CE implements Comparable<CE> {
-  final int id;
-  const CE(this.id);
-  int get hashCode => id;
-  bool operator ==(Object other) => other is CE && id == other.id;
-  int compareTo(CE other) => id - other.id;
-  String toString() => "CE($id)";
-}
-
-typedef int CECompare(CE e1, CE e2);
-typedef int CEHash(CE e1);
-typedef bool CEEq(CE e1, CE e2);
-typedef bool ValidKey(Object o);
-// Equality of Id objects based on id modulo value.
-CEEq customEq(int mod) => (CE e1, CE e2) => ((e1.id - e2.id) % mod) == 0;
-CEHash customHash(int mod) => (CE e) => e.id % mod;
-CECompare customCompare(int mod) =>
-    (CE e1, CE e2) => (e1.id % mod) - (e2.id % mod);
-bool validKey(Object o) => o is CE;
-final customId = new Map<dynamic, dynamic>.identity();
-int counter = 0;
-int identityCompare(e1, e2) {
-  if (identical(e1, e2)) return 0;
-  int i1 = customId.putIfAbsent(e1, () => ++counter);
-  int i2 = customId.putIfAbsent(e2, () => ++counter);
-  return i1 - i2;
-}
-
-void testIdentity(Set create()) {
-  Set set = create();
-  var e1 = new CE(0);
-  var e2 = new CE(0);
-  Expect.equals(e1, e2);
-  Expect.isFalse(identical(e1, e2));
-
-  testLength(0, set);
-  set.add(e1);
-  testLength(1, set);
-  Expect.isTrue(set.contains(e1));
-  Expect.isFalse(set.contains(e2));
-
-  set.add(e2);
-  testLength(2, set);
-  Expect.isTrue(set.contains(e1));
-  Expect.isTrue(set.contains(e2));
-
-  var set2 = set.toSet();
-  testLength(2, set2);
-  Expect.isTrue(set2.contains(e1));
-  Expect.isTrue(set2.contains(e2));
-}
-
-void testIntSetFrom(setFrom) {
-  List<num> numList = [2, 3, 5, 7, 11, 13];
-
-  Set<int> set1 = setFrom(numList);
-  Expect.listEquals(numList, set1.toList()..sort());
-
-  Set<num> numSet = numList.toSet();
-  Set<int> set2 = setFrom(numSet);
-  Expect.listEquals(numList, set2.toList()..sort());
-
-  Iterable<num> numIter = numList.where((x) => true);
-  Set<int> set3 = setFrom(numIter);
-  Expect.listEquals(numList, set3.toList()..sort());
-
-  Set<int> set4 = setFrom(new Iterable.generate(0));
-  Expect.isTrue(set4.isEmpty);
-}
-
-void testCESetFrom(setFrom) {
-  var ceList = [
-    new CE(2),
-    new CE(3),
-    new CE(5),
-    new CE(7),
-    new CE(11),
-    new CE(13)
-  ];
-
-  Set<CE> set1 = setFrom(ceList);
-  Expect.listEquals(ceList, set1.toList()..sort());
-
-  Set<CE> ceSet = ceList.toSet();
-  Set<CE> set2 = setFrom(ceSet);
-  Expect.listEquals(ceList, set2.toList()..sort());
-
-  Iterable<CE> ceIter = ceList.where((x) => true);
-  Set<CE> set3 = setFrom(ceIter);
-  Expect.listEquals(ceList, set3.toList()..sort());
-
-  Set<CE> set4 = setFrom(new Iterable.generate(0));
-  Expect.isTrue(set4.isEmpty);
-}
-
-class A {}
-
-class B {}
-
-class C implements A, B {}
-
-void testASetFrom(setFrom) {
-  List<B> bList = <B>[new C()];
-  // Set.from allows to cast elements.
-  Set<A> aSet = setFrom(bList);
-  Expect.isTrue(aSet.length == 1);
-}
-
-void testUnmodifiable(Set source) {
-  var unmodifiable = Set.unmodifiable(source);
-
-  Expect.throwsUnsupportedError(() {
-    unmodifiable.add(3);
-  }, "add");
-
-  Expect.throwsUnsupportedError(() {
-    unmodifiable.addAll({1, 2, 3});
-  }, "addAll");
-
-  Expect.throwsUnsupportedError(() {
-    unmodifiable.addAll(<int>{});
-  }, "addAll empty");
-
-  Expect.throwsUnsupportedError(() {
-    unmodifiable.remove(3);
-  }, "remove");
-
-  Expect.throwsUnsupportedError(() {
-    unmodifiable.removeAll({1, 2, 3});
-  }, "removeAll");
-
-  Expect.throwsUnsupportedError(() {
-    unmodifiable.removeAll(<int>{});
-  }, "removeAll empty");
-
-  Expect.throwsUnsupportedError(() {
-    unmodifiable.retainAll({1, 2, 3});
-  }, "retainAll");
-
-  Expect.throwsUnsupportedError(() {
-    unmodifiable.retainAll(<int>{});
-  }, "retainAll empty");
-
-  Expect.throwsUnsupportedError(() {
-    unmodifiable.removeWhere((_) => true);
-  }, "removeWhere");
-
-  Expect.throwsUnsupportedError(() {
-    unmodifiable.retainWhere((_) => false);
-  }, "retainWhere");
-
-  Expect.throwsUnsupportedError(() {
-    unmodifiable.clear();
-  }, "clear");
-}
-
-void testUnmodifiableSetIsNotUpdatedIfSourceSetIsUpdated() {
-  var modifiable = {1};
-  var unmodifiable = Set.unmodifiable(modifiable);
-
-  modifiable.add(2);
-  Expect.notEquals(modifiable.length, unmodifiable.length);
-  Expect.setEquals({2}, modifiable.difference(unmodifiable));
-  modifiable.removeAll({1, 2});
-  Expect.setEquals({1}, unmodifiable.difference(modifiable));
-  Expect.setEquals({1}, unmodifiable);
-}
-
-main() {
-  testMain(() => new HashSet());
-  testMain(() => new LinkedHashSet());
-  testMain(() => new HashSet.identity());
-  testMain(() => new LinkedHashSet.identity());
-  testMain(() => new HashSet(equals: identical));
-  testMain(() => new LinkedHashSet(equals: identical));
-  testMain(() => new HashSet(
-      equals: (a, b) => a == b,
-      hashCode: (a) => -a.hashCode,
-      isValidKey: (a) => true));
-  testMain(() => new LinkedHashSet(
-      equals: (a, b) => a == b,
-      hashCode: (a) => -a.hashCode,
-      isValidKey: (a) => true));
-  testMain(() => new SplayTreeSet());
-
-  testIdentity(() => new HashSet.identity());
-  testIdentity(() => new LinkedHashSet.identity());
-  testIdentity(() => new HashSet(equals: identical));
-  testIdentity(() => new LinkedHashSet(equals: identical));
-  testIdentity(() => new SplayTreeSet(identityCompare));
-
-  testTypeAnnotations(new HashSet<int>());
-  testTypeAnnotations(new LinkedHashSet<int>());
-  testTypeAnnotations(new HashSet<int>(equals: identical));
-  testTypeAnnotations(new LinkedHashSet<int>(equals: identical));
-  testTypeAnnotations(new HashSet<int>(
-      equals: (int a, int b) => a == b,
-      hashCode: (int a) => a.hashCode,
-      isValidKey: (a) => a is int));
-  testTypeAnnotations(new LinkedHashSet<int>(
-      equals: (int a, int b) => a == b,
-      hashCode: (int a) => a.hashCode,
-      isValidKey: (a) => a is int));
-  testTypeAnnotations(new SplayTreeSet<int>());
-
-  testRetainWhere(([equals, hashCode, validKey, comparator]) =>
-      new HashSet(equals: equals, hashCode: hashCode, isValidKey: validKey));
-  testRetainWhere(([equals, hashCode, validKey, comparator]) =>
-      new LinkedHashSet(
-          equals: equals, hashCode: hashCode, isValidKey: validKey));
-  testRetainWhere(([equals, hashCode, validKey, comparator]) =>
-      new SplayTreeSet(comparator, validKey));
-
-  testDifferenceIntersection(([equals, hashCode, validKey, comparator]) =>
-      new HashSet(equals: equals, hashCode: hashCode, isValidKey: validKey));
-  testDifferenceIntersection(([equals, hashCode, validKey, comparator]) =>
-      new LinkedHashSet(
-          equals: equals, hashCode: hashCode, isValidKey: validKey));
-  testDifferenceIntersection(([equals, hashCode, validKey, comparator]) =>
-      new SplayTreeSet(comparator, validKey));
-
-  testIntSetFrom((x) => new Set<int>.from(x));
-  testIntSetFrom((x) => new HashSet<int>.from(x));
-  testIntSetFrom((x) => new LinkedHashSet<int>.from(x));
-  testIntSetFrom((x) => new SplayTreeSet<int>.from(x));
-
-  testCESetFrom((x) => new Set<CE>.from(x));
-  testCESetFrom((x) => new HashSet<CE>.from(x));
-  testCESetFrom((x) => new LinkedHashSet<CE>.from(x));
-  testCESetFrom((x) => new SplayTreeSet<CE>.from(x));
-
-  testCESetFrom(
-      (x) => new SplayTreeSet<CE>.from(x, customCompare(20), validKey));
-  testCESetFrom((x) => new SplayTreeSet<CE>.from(x, identityCompare));
-
-  testASetFrom((x) => new Set<A>.from(x));
-  testASetFrom((x) => new HashSet<A>.from(x));
-  testASetFrom((x) => new LinkedHashSet<A>.from(x));
-  testASetFrom((x) => new SplayTreeSet<A>.from(x, identityCompare));
-
-  testUnmodifiable({1});
-  testUnmodifiableSetIsNotUpdatedIfSourceSetIsUpdated();
-}
diff --git a/tests/corelib_2/set_to_string_test.dart b/tests/corelib_2/set_to_string_test.dart
deleted file mode 100644
index 32872dd21a3..00000000000
--- a/tests/corelib_2/set_to_string_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "dart:collection";
-
-void main() {
-  Set s = new HashSet();
-  s.add(1);
-  Expect.equals("{1}", s.toString());
-  s.remove(1);
-  s.add(s);
-  Expect.equals("{{...}}", s.toString());
-
-  Queue q = new ListQueue(4);
-  q.add(1);
-  q.add(2);
-  q.add(q);
-  q.add(s);
-
-  Expect.equals("{1, 2, {...}, {{...}}}", q.toString());
-
-  // Throwing in the middle of a toString does not leave the
-  // set as being visited
-  q.addLast(new ThrowOnToString());
-  Expect.throws(q.toString, (e) => e == "Bad!");
-  q.removeLast();
-  Expect.equals("{1, 2, {...}, {{...}}}", q.toString());
-}
-
-class ThrowOnToString {
-  String toString() {
-    throw "Bad!";
-  }
-}
diff --git a/tests/corelib_2/set_unmodifiable_view_test.dart b/tests/corelib_2/set_unmodifiable_view_test.dart
deleted file mode 100644
index 4a1dbed932e..00000000000
--- a/tests/corelib_2/set_unmodifiable_view_test.dart
+++ /dev/null
@@ -1,222 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "dart:collection";
-
-main() {
-  testIterableApi();
-  testUnmodifiableSetApi();
-  testMutatingApisThrow();
-  testChangesInOriginalSetAreObservedInUnmodifiableView();
-}
-
-void testIterableApi() {
-  Set<int> original = {1, 2, 3};
-  Set<int> copy = {...original};
-  UnmodifiableSetView<int> wrapped = new UnmodifiableSetView(original);
-
-  Expect.equals(wrapped.any((_) => true), original.any((_) => true));
-  Expect.equals(wrapped.any((_) => false), original.any((_) => false));
-
-  Expect.equals(wrapped.contains(0), original.contains(0));
-  Expect.equals(wrapped.elementAt(0), original.elementAt(0));
-
-  Expect.equals(wrapped.every((_) => true), original.every((_) => true));
-  Expect.equals(wrapped.every((_) => false), original.every((_) => false));
-
-  Expect.setEquals(
-      wrapped.expand((x) => [x, x]), original.expand((x) => [x, x]));
-
-  Expect.equals(wrapped.first, original.first);
-
-  Expect.equals(
-      wrapped.firstWhere((_) => true), original.firstWhere((_) => true));
-  Expect.throwsStateError(() {
-    wrapped.firstWhere((_) => false);
-  }, "firstWhere");
-
-  Expect.equals(wrapped.fold<int>(0, (x, y) => x + y),
-      original.fold<int>(0, (x, y) => x + y));
-
-  testForeach(wrapped, original);
-
-  Expect.equals(wrapped.isEmpty, original.isEmpty);
-
-  Expect.equals(wrapped.isNotEmpty, original.isNotEmpty);
-
-  testIterator(wrapped, original);
-
-  Expect.equals(wrapped.join(""), original.join(""));
-  Expect.equals(wrapped.join("-"), original.join("-"));
-
-  Expect.equals(wrapped.last, original.last);
-
-  Expect.equals(
-      wrapped.lastWhere((_) => true), original.lastWhere((_) => true));
-  Expect.throwsStateError(() {
-    wrapped.lastWhere((_) => false);
-  }, "lastWhere");
-
-  Expect.equals(wrapped.length, original.length);
-
-  Expect.setEquals(wrapped.map((x) => "[$x]"), original.map((x) => "[$x]"));
-
-  Expect.equals(
-      wrapped.reduce((x, y) => x + y), original.reduce((x, y) => x + y));
-
-  Expect.throwsStateError(() {
-    wrapped.single;
-  }, "single");
-
-  Expect.throwsStateError(() {
-    wrapped.singleWhere((_) => true);
-  }, "singleWhere true");
-  Expect.throwsStateError(() {
-    wrapped.singleWhere((_) => false);
-  }, "singleWhere false");
-
-  Expect.setEquals(wrapped.skip(0), original.skip(0));
-  Expect.setEquals(wrapped.skip(1), original.skip(1));
-
-  Expect.setEquals(
-      wrapped.skipWhile((_) => true), original.skipWhile((_) => true));
-  Expect.setEquals(
-      wrapped.skipWhile((_) => false), original.skipWhile((_) => false));
-
-  Expect.setEquals(wrapped.take(0), original.take(0));
-  Expect.setEquals(wrapped.take(1), original.take(1));
-
-  Expect.setEquals(
-      wrapped.takeWhile((_) => true), original.takeWhile((_) => true));
-  Expect.setEquals(
-      wrapped.takeWhile((_) => false), original.takeWhile((_) => false));
-
-  var toListResult = wrapped.toList();
-  Expect.listEquals(original.toList(), toListResult);
-  toListResult.add(4);
-  Expect.listEquals([1, 2, 3, 4], toListResult);
-  toListResult[3] = 5;
-  Expect.listEquals([1, 2, 3, 5], toListResult);
-  // wrapped and original are intact
-  Expect.setEquals(copy, wrapped);
-  Expect.setEquals(copy, original);
-
-  var toSetResult = wrapped.toSet();
-  Expect.setEquals(original.toSet(), toSetResult);
-  toSetResult.add(4);
-  Expect.setEquals({1, 2, 3, 4}, toSetResult);
-  // wrapped and original are intact
-  Expect.setEquals(copy, wrapped);
-  Expect.setEquals(copy, original);
-
-  Expect.setEquals(wrapped.where((_) => true), original.where((_) => true));
-  Expect.setEquals(wrapped.where((_) => false), original.where((_) => false));
-}
-
-void testUnmodifiableSetApi() {
-  Set<int> original = {1, 2, 3};
-  Set<int> copy = {...original};
-  UnmodifiableSetView<int> wrapped = new UnmodifiableSetView(original);
-
-  Expect.isTrue(wrapped.containsAll(copy));
-  Expect.isTrue(wrapped.containsAll(copy.toList()));
-  Expect.isTrue(wrapped.containsAll([]));
-
-  Expect.isTrue(wrapped.intersection({}).isEmpty);
-  Expect.setEquals(wrapped.intersection(copy), original);
-
-  Expect.setEquals(wrapped.union({}), original);
-  Expect.setEquals(wrapped.union(copy), original);
-
-  Expect.setEquals(wrapped.difference({}), original);
-  Expect.isTrue(wrapped.difference(copy).isEmpty);
-}
-
-void testMutatingApisThrow() {
-  UnmodifiableSetView<int> s = new UnmodifiableSetView({1, 2, 3});
-
-  Expect.throwsUnsupportedError(() {
-    s.add(3);
-  }, "add");
-
-  Expect.throwsUnsupportedError(() {
-    s.addAll({1, 2, 3});
-  }, "addAll");
-
-  Expect.throwsUnsupportedError(() {
-    s.addAll(<int>{});
-  }, "addAll empty");
-
-  Expect.throwsUnsupportedError(() {
-    s.remove(3);
-  }, "remove");
-
-  Expect.throwsUnsupportedError(() {
-    s.removeAll({1, 2, 3});
-  }, "removeAll");
-
-  Expect.throwsUnsupportedError(() {
-    s.removeAll(<int>{});
-  }, "removeAll empty");
-
-  Expect.throwsUnsupportedError(() {
-    s.retainAll({1, 2, 3});
-  }, "retainAll");
-
-  Expect.throwsUnsupportedError(() {
-    s.retainAll(<int>{});
-  }, "retainAll empty");
-
-  Expect.throwsUnsupportedError(() {
-    s.removeWhere((_) => true);
-  }, "removeWhere");
-
-  Expect.throwsUnsupportedError(() {
-    s.retainWhere((_) => false);
-  }, "retainWhere");
-
-  Expect.throwsUnsupportedError(() {
-    s.clear();
-  }, "clear");
-}
-
-void testChangesInOriginalSetAreObservedInUnmodifiableView() {
-  Set<int> original = {1, 2, 3};
-  Set<int> copy = {...original};
-  UnmodifiableSetView<int> wrapped = new UnmodifiableSetView(original);
-
-  original.add(4);
-  Expect.setEquals(original, wrapped);
-  Expect.setEquals({4}, wrapped.difference(copy));
-}
-
-void testForeach(Set<int> wrapped, Set<int> original) {
-  var wrapCtr = 0;
-  var origCtr = 0;
-
-  wrapped.forEach((x) {
-    wrapCtr += x;
-  });
-
-  original.forEach((x) {
-    origCtr += x;
-  });
-
-  Expect.equals(wrapCtr, origCtr);
-}
-
-void testIterator(Set<int> wrapped, Set<int> original) {
-  Iterator wrapIter = wrapped.iterator;
-  Iterator origIter = original.iterator;
-
-  while (origIter.moveNext()) {
-    Expect.isTrue(wrapIter.moveNext());
-    Expect.equals(wrapIter.current, origIter.current);
-  }
-
-  Expect.isFalse(wrapIter.moveNext());
-}
diff --git a/tests/corelib_2/shuffle_test.dart b/tests/corelib_2/shuffle_test.dart
deleted file mode 100644
index aaab68c7842..00000000000
--- a/tests/corelib_2/shuffle_test.dart
+++ /dev/null
@@ -1,129 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test for List.shuffle.
-library shuffle_test;
-
-import "dart:typed_data";
-import "dart:math" show Random;
-import "package:expect/expect.dart";
-
-main() {
-  for (int size in [0, 1, 2, 3, 7, 15, 99, 1023]) {
-    var numbers = new List<int>.generate(size, (x) => x);
-    testShuffle(numbers.toList(growable: true));
-    testShuffle(numbers.toList(growable: false));
-    testShuffle(new Uint32List(size)..setAll(0, numbers));
-    testShuffle(new Int32List(size)..setAll(0, numbers));
-    testShuffle(new Uint16List(size)..setAll(0, numbers));
-    testShuffle(new Int16List(size)..setAll(0, numbers));
-    // Some numbers will be truncated in the following two.
-    testShuffle(new Uint8List(size)..setAll(0, numbers));
-    testShuffle(new Int8List(size)..setAll(0, numbers));
-    //testShuffle(numbers.map((x) => "$x").toList());
-  }
-
-  // Check that it actually can keep the same list (regression test).
-  List l = [1, 2];
-  success:
-  {
-    for (int i = 0; i < 266; i++) {
-      int first = l.first;
-      l.shuffle();
-      if (l.first == first) break success; // List didn't change.
-    }
-    // Chance of changing 266 times in a row should be < 1:1e80.
-    Expect.fail("List changes every time.");
-  }
-
-  testRandom();
-}
-
-void testShuffle(list) {
-  List copy = list.toList();
-  list.shuffle();
-  if (list.length < 2) {
-    Expect.listEquals(copy, list);
-    return;
-  }
-  // Test that the list after shuffling has the same elements as before,
-  // without considering order.
-  Map seen = {};
-  for (var e in list) {
-    seen[e] = seen.putIfAbsent(e, () => 0) + 1;
-  }
-  for (var e in copy) {
-    int remaining = seen[e];
-    remaining -= 1; // Throws if e was not in map at all.
-    if (remaining == 0) {
-      seen.remove(e);
-    } else {
-      seen[e] = remaining;
-    }
-  }
-  Expect.isTrue(seen.isEmpty);
-  // Test that shuffle actually does make a change. Repeat until the probability
-  // of a proper shuffling hitting the same list again is less than 10^80
-  // (arbitrary bignum - approx. number of atoms in the universe).
-  //
-  // The probability of shuffling a list of length n into the same list is
-  // 1/n!. If one shuffle didn't change the list, repeat shuffling until
-  // probability of randomly hitting the same list every time is less than
-  // 1/1e80.
-
-  bool listsDifferent() {
-    for (int i = 0; i < list.length; i++) {
-      if (list[i] != copy[i]) return true;
-    }
-    return false;
-  }
-
-  if (list.length < 59) {
-    // 59! > 1e80.
-    double limit = 1e80;
-    double fact = 1.0;
-    for (int i = 2; i < list.length; i++) fact *= i;
-    double combos = fact;
-
-    while (!listsDifferent() && combos < limit) {
-      list.shuffle();
-      combos *= fact;
-    }
-  }
-  if (!listsDifferent()) {
-    Expect.fail("Didn't shuffle at all, p < 1:1e80: $list");
-  }
-}
-
-// Checks that the "random" argument to shuffle is used.
-testRandom() {
-  List<int> randomNums = [37, 87, 42, 157, 252, 17];
-  List numbers = new List.generate(25, (x) => x);
-  List l1 = numbers.toList()..shuffle(new MockRandom(randomNums));
-  for (int i = 0; i < 50; i++) {
-    // With same random sequence, we get the same shuffling each time.
-    List l2 = numbers.toList()..shuffle(new MockRandom(randomNums));
-    Expect.listEquals(l1, l2);
-  }
-}
-
-class MockRandom implements Random {
-  final List<int> _values;
-  int index = 0;
-  MockRandom(this._values);
-
-  int get _next {
-    int next = _values[index];
-    index = (index + 1) % _values.length;
-    return next;
-  }
-
-  int nextInt(int limit) => _next % limit;
-
-  double nextDouble() => _next / 256.0;
-
-  bool nextBool() => _next.isEven;
-}
diff --git a/tests/corelib_2/sort_helper.dart b/tests/corelib_2/sort_helper.dart
deleted file mode 100644
index dcfaaeda956..00000000000
--- a/tests/corelib_2/sort_helper.dart
+++ /dev/null
@@ -1,157 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library sort_helper;
-
-import "package:expect/expect.dart";
-
-typedef Sorter = void Function(List<num>);
-typedef Comparer = int Function(num, num);
-
-class SortHelper {
-  SortHelper(this.sortFunction, this.compareFunction) {}
-
-  void run() {
-    testSortIntLists();
-    testSortDoubleLists();
-  }
-
-  bool isSorted(List<num> a) {
-    for (int i = 1; i < a.length; i++) {
-      if (compareFunction(a[i - 1], a[i]) > 0) {
-        return false;
-      }
-    }
-    return true;
-  }
-
-  void testSortIntLists() {
-    var a = new List<int>.filled(40, null);
-
-    for (int i = 0; i < a.length; i++) {
-      a[i] = i;
-    }
-    testSort(a);
-
-    for (int i = 0; i < a.length; i++) {
-      a[a.length - i - 1] = i;
-    }
-    testSort(a);
-
-    for (int i = 0; i < 21; i++) {
-      a[i] = 1;
-    }
-    for (int i = 21; i < a.length; i++) {
-      a[i] = 2;
-    }
-    testSort(a);
-
-    // Same with bad pivot-choices.
-    for (int i = 0; i < 21; i++) {
-      a[i] = 1;
-    }
-    for (int i = 21; i < a.length; i++) {
-      a[i] = 2;
-    }
-    a[6] = 1;
-    a[13] = 1;
-    a[19] = 1;
-    a[25] = 1;
-    a[33] = 2;
-    testSort(a);
-
-    for (int i = 0; i < 21; i++) {
-      a[i] = 2;
-    }
-    for (int i = 21; i < a.length; i++) {
-      a[i] = 1;
-    }
-    testSort(a);
-
-    // Same with bad pivot-choices.
-    for (int i = 0; i < 21; i++) {
-      a[i] = 2;
-    }
-    for (int i = 21; i < a.length; i++) {
-      a[i] = 1;
-    }
-    a[6] = 2;
-    a[13] = 2;
-    a[19] = 2;
-    a[25] = 2;
-    a[33] = 1;
-    testSort(a);
-
-    var a2 = new List<int>.filled(0, null);
-    testSort(a2);
-
-    var a3 = new List<int>.filled(1, null);
-    a3[0] = 1;
-    testSort(a3);
-
-    // --------
-    // Test insertion sort.
-    testInsertionSort(0, 1, 2, 3);
-    testInsertionSort(0, 1, 3, 2);
-    testInsertionSort(0, 3, 2, 1);
-    testInsertionSort(0, 3, 1, 2);
-    testInsertionSort(0, 2, 1, 3);
-    testInsertionSort(0, 2, 3, 1);
-    testInsertionSort(1, 0, 2, 3);
-    testInsertionSort(1, 0, 3, 2);
-    testInsertionSort(1, 2, 3, 0);
-    testInsertionSort(1, 2, 0, 3);
-    testInsertionSort(1, 3, 2, 0);
-    testInsertionSort(1, 3, 0, 2);
-    testInsertionSort(2, 0, 1, 3);
-    testInsertionSort(2, 0, 3, 1);
-    testInsertionSort(2, 1, 3, 0);
-    testInsertionSort(2, 1, 0, 3);
-    testInsertionSort(2, 3, 1, 0);
-    testInsertionSort(2, 3, 0, 1);
-    testInsertionSort(3, 0, 1, 2);
-    testInsertionSort(3, 0, 2, 1);
-    testInsertionSort(3, 1, 2, 0);
-    testInsertionSort(3, 1, 0, 2);
-    testInsertionSort(3, 2, 1, 0);
-    testInsertionSort(3, 2, 0, 1);
-  }
-
-  void testSort(List<num> a) {
-    sortFunction(a);
-    Expect.isTrue(isSorted(a));
-  }
-
-  void testInsertionSort(int i1, int i2, int i3, int i4) {
-    var a = new List<int>.filled(4, null);
-    a[0] = i1;
-    a[1] = i2;
-    a[2] = i3;
-    a[3] = i4;
-    testSort(a);
-  }
-
-  void testSortDoubleLists() {
-    var a = new List<double>.filled(40, null);
-    for (int i = 0; i < a.length; i++) {
-      a[i] = 1.0 * i + 0.5;
-    }
-    testSort(a);
-
-    for (int i = 0; i < a.length; i++) {
-      a[i] = 1.0 * (a.length - i) + 0.5;
-    }
-    testSort(a);
-
-    for (int i = 0; i < a.length; i++) {
-      a[i] = 1.5;
-    }
-    testSort(a);
-  }
-
-  Sorter sortFunction;
-  Comparer compareFunction;
-}
diff --git a/tests/corelib_2/sort_test.dart b/tests/corelib_2/sort_test.dart
deleted file mode 100644
index ddbb8104dcc..00000000000
--- a/tests/corelib_2/sort_test.dart
+++ /dev/null
@@ -1,315 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test for sort routines.
-library sort_test;
-
-import "package:expect/expect.dart";
-import 'sort_helper.dart';
-
-main() {
-  var compare = (num a, num b) => a.compareTo(b);
-  var sort = (List<num> list) => list.sort(compare);
-  new SortHelper(sort, compare).run();
-
-  compare = (num a, num b) => -a.compareTo(b);
-  new SortHelper(sort, compare).run();
-
-  var intCompare = (int a, int b) => a.compareTo(b);
-
-  // Pivot-candidate indices: 7, 15, 22, 29, 37
-  // Test Dutch flag partitioning (candidates 2 and 4 are the same).
-  var list = [
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0 /**/,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    1 /**/,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1 /**/,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1 /**/,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2 /**/,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2
-  ];
-  list.sort(intCompare);
-  Expect.listEquals(list, <int>[
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2
-  ]);
-
-  list = [
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    1 /**/,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0 /**/,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1,
-    0 /**/,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1,
-    0 /**/,
-    2 /**/,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2 /**/,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2
-  ];
-  list.sort(intCompare);
-  Expect.listEquals(list, <int>[
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    0,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2
-  ]);
-
-  // Pivots: 1 and 8.
-  // The second partition will be big (more than 2/3 of the list), and an
-  // optimization kicks in that removes the pivots from the partition.
-  list = [
-    0,
-    9,
-    0,
-    9,
-    3,
-    9,
-    0,
-    1 /**/,
-    1,
-    0,
-    1,
-    9,
-    8,
-    2,
-    1,
-    1 /**/,
-    4,
-    5,
-    2,
-    5,
-    0,
-    1,
-    8 /**/,
-    8,
-    8,
-    5,
-    2,
-    2,
-    9,
-    8 /**/,
-    8,
-    4,
-    4,
-    1,
-    5,
-    3,
-    2,
-    8 /**/,
-    5,
-    1,
-    2,
-    8,
-    5,
-    6,
-    8
-  ];
-  list.sort(intCompare);
-  Expect.listEquals(list, <int>[
-    0,
-    0,
-    0,
-    0,
-    0,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1,
-    1,
-    2,
-    2,
-    2,
-    2,
-    2,
-    2,
-    3,
-    3,
-    4,
-    4,
-    4,
-    5,
-    5,
-    5,
-    5,
-    5,
-    5,
-    6,
-    8,
-    8,
-    8,
-    8,
-    8,
-    8,
-    8,
-    8,
-    8,
-    9,
-    9,
-    9,
-    9,
-    9
-  ]);
-}
diff --git a/tests/corelib_2/splay_tree_from_iterable_test.dart b/tests/corelib_2/splay_tree_from_iterable_test.dart
deleted file mode 100644
index 1207a5419a6..00000000000
--- a/tests/corelib_2/splay_tree_from_iterable_test.dart
+++ /dev/null
@@ -1,170 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-
-main() {
-  defaultFunctionValuesTest();
-  defaultKeyFunctionTest();
-  defaultValueFunctionTest();
-  noDefaultValuesTest();
-  emptyIterableTest();
-  equalElementsTest();
-  genericTypeTest();
-  typedTest();
-}
-
-void defaultFunctionValuesTest() {
-  var map = new SplayTreeMap.fromIterable([1, 2, 3]);
-
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is SplayTreeMap);
-  Expect.isFalse(map is HashMap);
-
-  Expect.equals(3, map.length);
-  Expect.equals(3, map.keys.length);
-  Expect.equals(3, map.values.length);
-
-  Expect.equals(1, map[1]);
-  Expect.equals(2, map[2]);
-  Expect.equals(3, map[3]);
-}
-
-void defaultKeyFunctionTest() {
-  var map = new SplayTreeMap.fromIterable([1, 2, 3], value: (x) => x + 1);
-
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is SplayTreeMap);
-  Expect.isFalse(map is HashMap);
-
-  Expect.equals(3, map.length);
-  Expect.equals(3, map.keys.length);
-  Expect.equals(3, map.values.length);
-
-  Expect.equals(2, map[1]);
-  Expect.equals(3, map[2]);
-  Expect.equals(4, map[3]);
-}
-
-void defaultValueFunctionTest() {
-  var map = new SplayTreeMap.fromIterable([1, 2, 3], key: (x) => x + 1);
-
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is SplayTreeMap);
-  Expect.isFalse(map is HashMap);
-
-  Expect.equals(3, map.length);
-  Expect.equals(3, map.keys.length);
-  Expect.equals(3, map.values.length);
-
-  Expect.equals(1, map[2]);
-  Expect.equals(2, map[3]);
-  Expect.equals(3, map[4]);
-}
-
-void noDefaultValuesTest() {
-  var map = new SplayTreeMap.fromIterable([1, 2, 3],
-      key: (x) => x + 1, value: (x) => x - 1);
-
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is SplayTreeMap);
-  Expect.isFalse(map is HashMap);
-
-  Expect.equals(3, map.length);
-  Expect.equals(3, map.keys.length);
-  Expect.equals(3, map.values.length);
-
-  Expect.equals(0, map[2]);
-  Expect.equals(1, map[3]);
-  Expect.equals(2, map[4]);
-}
-
-void emptyIterableTest() {
-  var map = new SplayTreeMap.fromIterable([]);
-
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is SplayTreeMap);
-  Expect.isFalse(map is HashMap);
-
-  Expect.equals(0, map.length);
-  Expect.equals(0, map.keys.length);
-  Expect.equals(0, map.values.length);
-}
-
-void equalElementsTest() {
-  var map = new SplayTreeMap.fromIterable([1, 2, 2], key: (x) => x + 1);
-
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is SplayTreeMap);
-  Expect.isFalse(map is HashMap);
-
-  Expect.equals(2, map.length);
-  Expect.equals(2, map.keys.length);
-  Expect.equals(2, map.values.length);
-
-  Expect.equals(1, map[2]);
-  Expect.equals(2, map[3]);
-}
-
-void genericTypeTest() {
-  var map =
-      new SplayTreeMap<int, String>.fromIterable([1, 2, 3], value: (x) => '$x');
-  Expect.isTrue(map is Map<int, String>);
-  Expect.isTrue(map is SplayTreeMap<int, String>);
-
-  // Make sure it is not just SplayTreeMap<dynamic, dynamic>.
-  Expect.isFalse(map is SplayTreeMap<String, dynamic>);
-  Expect.isFalse(map is SplayTreeMap<dynamic, int>);
-}
-
-typedef String objectToString(Object v);
-typedef bool objectToBool(Object v);
-
-// Test in checked mode with explicitly given types.
-void typedTest() {
-  // Assign functions to typed function variables.
-  objectToString key = (v) => "$v";
-  objectToBool value = (v) => (v as int).isOdd;
-  Function id = (int i) => i;
-
-  Expect.throws(() {
-    new SplayTreeMap<String, bool>.fromIterable(<int>[1, 2, 3], key: key
-        // No "value" map, defaults to identity, which returns int, not bool.
-        );
-  });
-
-  Expect.throws(() {
-    new SplayTreeMap<String, bool>.fromIterable(<int>[1, 2, 3],
-        // No "key" map, defaults to identity, which returns int, not String.
-        value: value);
-  });
-
-  Expect.throws(() {
-    new SplayTreeMap<String, bool>.fromIterable(<int>[1, 2, 3],
-        key: id as dynamic, //     wrong type.
-        value: value);
-  });
-
-  Expect.throws(() {
-    new SplayTreeMap<String, bool>.fromIterable(<int>[1, 2, 3],
-        key: key, value: id as dynamic //   wrong type.
-        );
-  });
-
-  // But it works with explicit types when used correctly.
-  SplayTreeMap<String, bool> map = new SplayTreeMap<String, bool>.fromIterable(
-      <int>[1, 2, 3],
-      key: key, value: value);
-  Iterable<String> keys = map.keys;
-  Iterable<bool> values = map.values;
-  List<String> keyList = keys.toList();
-  List<bool> valueList = values.toList();
-  Expect.equals(3, keyList.length);
-  Expect.equals(3, valueList.length);
-  Expect.equals(keys.first, map.firstKey());
-  Expect.equals(keys.last, map.lastKey());
-}
diff --git a/tests/corelib_2/splay_tree_from_iterables_test.dart b/tests/corelib_2/splay_tree_from_iterables_test.dart
deleted file mode 100644
index 4e8b63e4db1..00000000000
--- a/tests/corelib_2/splay_tree_from_iterables_test.dart
+++ /dev/null
@@ -1,87 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-
-main() {
-  positiveTest();
-  emptyMapTest();
-  fewerKeysIterableTest();
-  fewerValuesIterableTest();
-  equalElementsTest();
-  genericTypeTest();
-}
-
-void positiveTest() {
-  var map = new SplayTreeMap.fromIterables([1, 2, 3], ["one", "two", "three"]);
-
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is SplayTreeMap);
-  Expect.isFalse(map is HashMap);
-
-  Expect.equals(3, map.length);
-  Expect.equals(3, map.keys.length);
-  Expect.equals(3, map.values.length);
-
-  Expect.equals("one", map[1]);
-  Expect.equals("two", map[2]);
-  Expect.equals("three", map[3]);
-}
-
-void emptyMapTest() {
-  var map = new SplayTreeMap.fromIterables([], []);
-
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is SplayTreeMap);
-  Expect.isFalse(map is HashMap);
-
-  Expect.equals(0, map.length);
-  Expect.equals(0, map.keys.length);
-  Expect.equals(0, map.values.length);
-}
-
-void fewerValuesIterableTest() {
-  Expect.throws(() => new SplayTreeMap.fromIterables([1, 2], [0]));
-}
-
-void fewerKeysIterableTest() {
-  Expect.throws(() => new SplayTreeMap.fromIterables([1], [0, 2]));
-}
-
-void equalElementsTest() {
-  var map = new SplayTreeMap.fromIterables([1, 2, 2], ["one", "two", "three"]);
-
-  Expect.isTrue(map is Map);
-  Expect.isTrue(map is SplayTreeMap);
-  Expect.isFalse(map is HashMap);
-
-  Expect.equals(2, map.length);
-  Expect.equals(2, map.keys.length);
-  Expect.equals(2, map.values.length);
-
-  Expect.equals("one", map[1]);
-  Expect.equals("three", map[2]);
-}
-
-void genericTypeTest() {
-  var map = new SplayTreeMap<int, String>.fromIterables(
-      [1, 2, 3], ["one", "two", "three"]);
-  Expect.isTrue(map is Map<int, String>);
-  Expect.isTrue(map is SplayTreeMap<int, String>);
-
-  // Make sure it is not just SplayTreeMap<dynamic, dynamic>.
-  Expect.isFalse(map is SplayTreeMap<String, dynamic>);
-  Expect.isFalse(map is SplayTreeMap<dynamic, int>);
-
-  Expect.equals(3, map.length);
-  Expect.equals(3, map.keys.length);
-  Expect.equals(3, map.values.length);
-
-  Expect.equals("one", map[1]);
-  Expect.equals("two", map[2]);
-  Expect.equals("three", map[3]);
-}
diff --git a/tests/corelib_2/splay_tree_test.dart b/tests/corelib_2/splay_tree_test.dart
deleted file mode 100644
index 2f7107417d1..00000000000
--- a/tests/corelib_2/splay_tree_test.dart
+++ /dev/null
@@ -1,197 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test for Splaytrees.
-library splay_tree_test;
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-
-main() {
-  // Simple tests.
-  SplayTreeMap tree = new SplayTreeMap();
-  tree[1] = "first";
-  tree[3] = "third";
-  tree[5] = "fifth";
-  tree[2] = "second";
-  tree[4] = "fourth";
-
-  var correctSolution = ["first", "second", "third", "fourth", "fifth"];
-
-  tree.forEach((key, value) {
-    Expect.equals(true, key >= 1);
-    Expect.equals(true, key <= 5);
-    Expect.equals(value, correctSolution[key - 1]);
-  });
-
-  for (var v in ["first", "second", "third", "fourth", "fifth"]) {
-    Expect.isTrue(tree.containsValue(v));
-  }
-  Expect.isFalse(tree.containsValue("sixth"));
-
-  tree[7] = "seventh";
-
-  Expect.equals(1, tree.firstKey());
-  Expect.equals(7, tree.lastKey());
-
-  Expect.equals(2, tree.lastKeyBefore(3));
-  Expect.equals(4, tree.firstKeyAfter(3));
-
-  Expect.equals(null, tree.lastKeyBefore(1));
-  Expect.equals(2, tree.firstKeyAfter(1));
-
-  Expect.equals(4, tree.lastKeyBefore(5));
-  Expect.equals(7, tree.firstKeyAfter(5));
-
-  Expect.equals(5, tree.lastKeyBefore(7));
-  Expect.equals(null, tree.firstKeyAfter(7));
-
-  Expect.equals(5, tree.lastKeyBefore(6));
-  Expect.equals(7, tree.firstKeyAfter(6));
-
-  testSetFrom();
-  regressRemoveWhere();
-  regressRemoveWhere2();
-  regressFromCompare();
-  regressIncomparable();
-}
-
-void regressRemoveWhere() {
-  // Regression test. Fix in https://codereview.chromium.org/148523006/
-  var t = new SplayTreeSet();
-  t.addAll([1, 3, 5, 7, 2, 4, 6, 8, 0]);
-  var seen = new List<bool>.filled(9, false);
-  t.removeWhere((x) {
-    // Called only once per element.
-    Expect.isFalse(seen[x], "seen $x");
-    seen[x] = true;
-    return x.isOdd;
-  });
-}
-
-void regressRemoveWhere2() {
-  // Regression test for http://dartbug.com/18676
-  // Removing all elements with removeWhere causes error.
-
-  var t = new SplayTreeSet();
-  t.addAll([1, 2, 3, 4, 5]);
-  t.removeWhere((_) => true); // Should not throw.
-  Expect.isTrue(t.isEmpty);
-  t.addAll([1, 2, 3, 4, 5]);
-  t.retainWhere((_) => false); // Should not throw.
-  Expect.isTrue(t.isEmpty);
-}
-
-void testSetFrom() {
-  var set1 = new SplayTreeSet<num>()..addAll([1, 2, 3, 4, 5]);
-  var set2 = new SplayTreeSet<int>.from(set1);
-  Expect.equals(5, set2.length);
-  for (int i = 1; i <= 5; i++) {
-    Expect.isTrue(set2.contains(i));
-  }
-
-  set1 = new SplayTreeSet<num>()..addAll([0, 1, 2.4, 3.14, 5]);
-  set2 = new SplayTreeSet<int>.from(set1.where((x) => x is int));
-  Expect.equals(3, set2.length);
-}
-
-void regressFromCompare() {
-  // Regression test for http://dartbug.com/23387.
-  // The compare and isValidKey arguments to SplayTreeMap.from were ignored.
-
-  int compare(a, b) {
-    if (a is IncomparableKey && b is IncomparableKey) {
-      return b.id - a.id;
-    }
-    throw "isValidKey failure";
-  }
-
-  bool isValidKey(o) => o is IncomparableKey;
-  IncomparableKey key(int n) => new IncomparableKey(n);
-
-  var entries = {key(0): 0, key(1): 1, key(2): 2, key(0): 0};
-  Expect.equals(4, entries.length);
-  var map =
-      new SplayTreeMap<IncomparableKey, int>.from(entries, compare, isValidKey);
-  Expect.equals(3, map.length);
-  for (int i = 0; i < 3; i++) {
-    Expect.isTrue(map.containsKey(key(i)));
-    Expect.equals(i, map[key(i)]);
-  }
-  Expect.isFalse(map.containsKey(key(5)));
-  Expect.isFalse(map.containsKey(1));
-  Expect.isFalse(map.containsKey("string"));
-  Expect.equals(null, map[key(5)]);
-  Expect.equals(null, map[1]);
-  Expect.equals(null, map["string"]);
-  map[1] = 42; //# 01: compile-time error
-  map["string"] = 42; //# 02: compile-time error
-  map[key(5)] = 42;
-  Expect.equals(4, map.length);
-  Expect.equals(42, map[key(5)]);
-}
-
-// Incomparable keys throw when added, even on an empty collection.
-void regressIncomparable() {
-  var set = SplayTreeSet();
-  Expect.throws(() => set.add(IncomparableKey(0)));
-  Expect.throws(() => set.lookup(IncomparableKey(0)));
-  set.add(1);
-  Expect.throws(() => set.add(IncomparableKey(0)));
-  Expect.throws(() => set.lookup(IncomparableKey(0)));
-
-  var map = SplayTreeMap();
-  Expect.throws(() => map[IncomparableKey(0)] = 0);
-  Expect.throws(() => map.putIfAbsent(IncomparableKey(0), () => 0));
-  map[1] = 1;
-  Expect.throws(() => map[IncomparableKey(0)] = 0);
-  Expect.throws(() => map.putIfAbsent(IncomparableKey(0), () => 0));
-
-  // But not if the compare function allows them.
-  // This now includes `null`.
-  int compare(Object o1, Object o2) {
-    if (o1 == null) return o2 == null ? 0 : -1;
-    if (o2 == null) return 1;
-    if (o1 is IncomparableKey && o2 is IncomparableKey) {
-      return o1.id - o2.id;
-    }
-    throw UnsupportedError("Nope");
-  }
-  for (var key in [null, IncomparableKey(0)]) {
-    set = SplayTreeSet<Object>(compare);
-    set.add(key);
-    Expect.equals(1, set.length);
-    set.clear();
-    Expect.isNull(set.lookup(key));
-    set.clear();
-    set.add(IncomparableKey(1));
-    set.add(key);
-    Expect.identical(key, set.first);
-    Expect.identical(key, set.lookup(key));
-
-    map = SplayTreeMap<Object, Object>(compare);
-    map[key] = 0;
-    Expect.isTrue(map.containsKey(key));
-    map.clear();
-    map.putIfAbsent(key, () => 0);
-    Expect.isTrue(map.containsKey(key));
-    map.clear();
-    map[IncomparableKey(1)] = 0;
-    map[key] = 0;
-    Expect.isTrue(map.containsKey(key));
-    map.remove(key);
-    Expect.isFalse(map.containsKey(key));
-    map.putIfAbsent(key, () => 0);
-    Expect.isTrue(map.containsKey(key));
-    map.remove(key);
-    Expect.isFalse(map.containsKey(key));
-  }
-}
-
-class IncomparableKey {
-  final int id;
-  IncomparableKey(this.id);
-}
diff --git a/tests/corelib_2/stacktrace_current_test.dart b/tests/corelib_2/stacktrace_current_test.dart
deleted file mode 100644
index bbf697bc59d..00000000000
--- a/tests/corelib_2/stacktrace_current_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:convert" show LineSplitter;
-
-import "package:expect/expect.dart";
-
-void main() {
-  var st0;
-  var st1;
-  // Primitive way to get stack trace,.
-  try {
-    throw 0;
-  } catch (_, s) {
-    st0 = s;
-  }
-  st1 = StackTrace.current;
-
-  var st0s = findMain(st0);
-  var st1s = findMain(st1);
-  // Stack traces are not equal (contains at least a different line number,
-  // and possible different frame numbers).
-  // They are *similar*, so check that they agree on everything but numbers.
-  var digits = new RegExp(r"\d+");
-  Expect.equals(st0s.replaceAll(digits, "0"), st1s.replaceAll(digits, "0"));
-}
-
-String findMain(StackTrace stack) {
-  var string = "$stack";
-  var lines = LineSplitter.split(string).toList();
-  while (lines.isNotEmpty && !lines.first.contains("main")) {
-    lines.removeAt(0);
-  }
-  return lines.join("\n");
-}
diff --git a/tests/corelib_2/stacktrace_fromstring_test.dart b/tests/corelib_2/stacktrace_fromstring_test.dart
deleted file mode 100644
index c5f4653f27e..00000000000
--- a/tests/corelib_2/stacktrace_fromstring_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-import "dart:async";
-
-void main() {
-  StackTrace stack;
-  try {
-    throw 0;
-  } catch (e, s) {
-    stack = s;
-  }
-  var string = "$stack";
-  StackTrace stringTrace = new StackTrace.fromString(string);
-  Expect.isTrue(stringTrace is StackTrace);
-  Expect.equals(stack.toString(), stringTrace.toString());
-
-  string = "some random string, nothing like a StackTrace";
-  stringTrace = new StackTrace.fromString(string);
-  Expect.isTrue(stringTrace is StackTrace);
-  Expect.equals(string, stringTrace.toString());
-
-  // Use stacktrace asynchronously.
-  asyncStart();
-  var c = new Completer();
-  c.completeError(0, stringTrace);
-  c.future.then((v) {
-    throw "Unexpected value: $v";
-  }, onError: (e, s) {
-    Expect.equals(string, s.toString());
-  }).then((_) {
-    var c = new StreamController();
-    c.stream.listen((v) {
-      throw "Unexpected value: $v";
-    }, onError: (e, s) {
-      Expect.equals(string, s.toString());
-      asyncEnd();
-    });
-    c.addError(0, stringTrace);
-    c.close();
-  });
-}
diff --git a/tests/corelib_2/stopwatch2_test.dart b/tests/corelib_2/stopwatch2_test.dart
deleted file mode 100644
index e66604b0cda..00000000000
--- a/tests/corelib_2/stopwatch2_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test program for elapsed getters in stopwatch support.
-
-import "package:expect/expect.dart";
-
-main() {
-  Stopwatch sw = new Stopwatch()..start();
-  while (sw.elapsedMilliseconds < 2) {
-    /* do nothing. */
-  }
-  sw.stop();
-  Expect.equals(sw.elapsedMicroseconds, sw.elapsed.inMicroseconds);
-  Expect.equals(sw.elapsedMilliseconds, sw.elapsed.inMilliseconds);
-}
diff --git a/tests/corelib_2/stopwatch_test.dart b/tests/corelib_2/stopwatch_test.dart
deleted file mode 100644
index dfdeb0ca601..00000000000
--- a/tests/corelib_2/stopwatch_test.dart
+++ /dev/null
@@ -1,130 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test program for testing stopwatch support.
-
-library stopwatch_test;
-
-import "package:expect/expect.dart";
-
-class StopwatchTest {
-  static bool checkTicking(Stopwatch sw) {
-    Expect.isFalse(sw.isRunning);
-    sw.start();
-    Expect.isTrue(sw.isRunning);
-    for (int i = 0; i < 1000000; i++) {
-      int.parse(i.toString());
-      if (sw.elapsedTicks > 0) {
-        break;
-      }
-    }
-    return sw.elapsedTicks > 0;
-  }
-
-  static bool checkStopping(Stopwatch sw) {
-    sw.stop();
-    Expect.isFalse(sw.isRunning);
-    int v1 = sw.elapsedTicks;
-    Expect.isTrue(v1 > 0); // Expect a non-zero elapsed time.
-    Stopwatch sw2 = new Stopwatch(); // Used for verification.
-    sw2.start();
-    Expect.isTrue(sw2.isRunning);
-    int sw2LastElapsed = 0;
-    for (int i = 0; i < 100000; i++) {
-      int.parse(i.toString());
-      int v2 = sw.elapsedTicks;
-      if (v1 != v2) {
-        return false;
-      }
-      // If sw2 elapsed twice then sw must have advanced too if it wasn't
-      // stopped.
-      if (sw2LastElapsed > 0 && sw2.elapsedTicks > sw2LastElapsed) {
-        break;
-      }
-      sw2LastElapsed = sw2.elapsedTicks;
-    }
-    // The test only makes sense if measureable time elapsed and elapsed time
-    // on the stopped Stopwatch did not increase.
-    Expect.isTrue(sw2.elapsedTicks > 0);
-    return true;
-  }
-
-  static checkRestart() {
-    Stopwatch sw = new Stopwatch();
-    Expect.isFalse(sw.isRunning);
-    sw.start();
-    Expect.isTrue(sw.isRunning);
-    for (int i = 0; i < 100000; i++) {
-      int.parse(i.toString());
-      if (sw.elapsedTicks > 0) {
-        break;
-      }
-    }
-    sw.stop();
-    Expect.isFalse(sw.isRunning);
-    int initial = sw.elapsedTicks;
-    sw.start();
-    Expect.isTrue(sw.isRunning);
-    for (int i = 0; i < 100000; i++) {
-      int.parse(i.toString());
-      if (sw.elapsedTicks > initial) {
-        break;
-      }
-    }
-    sw.stop();
-    Expect.isFalse(sw.isRunning);
-    Expect.isTrue(sw.elapsedTicks > initial);
-  }
-
-  static checkReset() {
-    Stopwatch sw = new Stopwatch();
-    Expect.isFalse(sw.isRunning);
-    sw.start();
-    Expect.isTrue(sw.isRunning);
-    for (int i = 0; i < 100000; i++) {
-      int.parse(i.toString());
-      if (sw.elapsedTicks > 0) {
-        break;
-      }
-    }
-    sw.stop();
-    Expect.isFalse(sw.isRunning);
-    sw.reset();
-    Expect.isFalse(sw.isRunning);
-    Expect.equals(0, sw.elapsedTicks);
-    sw.start();
-    Expect.isTrue(sw.isRunning);
-    for (int i = 0; i < 100000; i++) {
-      int.parse(i.toString());
-      if (sw.elapsedTicks > 0) {
-        break;
-      }
-    }
-    sw.reset();
-    Expect.isTrue(sw.isRunning);
-    for (int i = 0; i < 100000; i++) {
-      int.parse(i.toString());
-      if (sw.elapsedTicks > 0) {
-        break;
-      }
-    }
-    sw.stop();
-    Expect.isFalse(sw.isRunning);
-    Expect.isTrue(sw.elapsedTicks > 0);
-  }
-
-  static testMain() {
-    Stopwatch sw = new Stopwatch();
-    Expect.isTrue(checkTicking(sw));
-    Expect.isTrue(checkStopping(sw));
-    checkRestart();
-    checkReset();
-  }
-}
-
-main() {
-  StopwatchTest.testMain();
-}
diff --git a/tests/corelib_2/string_base_vm_static_test.dart b/tests/corelib_2/string_base_vm_static_test.dart
deleted file mode 100644
index 283f4749f74..00000000000
--- a/tests/corelib_2/string_base_vm_static_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing class 'StringBase' (currently VM specific).
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  String s4 = new String.fromCharCodes([0.0]);
-  //                                    ^^^
-  // [analyzer] COMPILE_TIME_ERROR.LIST_ELEMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] A value of type 'double' can't be assigned to a variable of type 'int'.
-}
diff --git a/tests/corelib_2/string_base_vm_test.dart b/tests/corelib_2/string_base_vm_test.dart
deleted file mode 100644
index 0b3d8879656..00000000000
--- a/tests/corelib_2/string_base_vm_test.dart
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing class 'StringBase' (currently VM specific).
-
-// @dart = 2.9
-
-library string_base_test;
-
-import "package:expect/expect.dart";
-
-class StringBaseTest {
-  StringBaseTest() {}
-
-  toString() {
-    return "StringBase Tester";
-  }
-
-  static testInterpolation() {
-    var answer = 40 + 2;
-    var s = "The answer is $answer.";
-    Expect.equals("The answer is 42.", s);
-
-    int numBottles = 33;
-    String wall = "wall";
-    s = "${numBottles*3} bottles of beer on the $wall.";
-    Expect.equals("99 bottles of beer on the wall.", s);
-  }
-
-  static testCreation() {
-    String s = "Hello";
-    List<int> a = new List.filled(s.length, null);
-    List<int> ga = [];
-    bool exception_caught = false;
-    for (int i = 0; i < a.length; i++) {
-      a[i] = s.codeUnitAt(i);
-      ga.add(s.codeUnitAt(i));
-    }
-    try {
-      String s4 = new String.fromCharCodes([-1]);
-    } on ArgumentError catch (ex) {
-      exception_caught = true;
-    }
-    Expect.equals(true, exception_caught);
-  }
-
-  static testSubstring() {
-    String s = "Hello World";
-    Expect.equals("World", s.substring(6, s.length));
-    Expect.equals("", s.substring(8, 8));
-    bool exception_caught = false;
-    try {
-      s.substring(5, 12);
-    } on RangeError catch (ex) {
-      exception_caught = true;
-    }
-    Expect.equals(true, exception_caught);
-    exception_caught = false;
-    try {
-      s.substring(5, 4);
-    } on RangeError catch (ex) {
-      exception_caught = true;
-    }
-    Expect.equals(true, exception_caught);
-  }
-
-  static void testMain() {
-    testInterpolation();
-    testCreation();
-    testSubstring();
-  }
-}
-
-main() {
-  StringBaseTest.testMain();
-}
diff --git a/tests/corelib_2/string_buffer_test.dart b/tests/corelib_2/string_buffer_test.dart
deleted file mode 100644
index d5b6781c800..00000000000
--- a/tests/corelib_2/string_buffer_test.dart
+++ /dev/null
@@ -1,241 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// TODO(srdjan): Move StringBuffer to visible names.
-
-void testConstructor() {
-  StringBuffer bf = new StringBuffer("");
-  testBufferLength(0, bf);
-
-  bf = new StringBuffer("abc");
-  testBufferLength(3, bf);
-  Expect.equals("abc", bf.toString());
-
-  bf = new StringBuffer("\x00");
-}
-
-void testWrite() {
-  StringBuffer bf = new StringBuffer("");
-  Expect.equals(true, bf.isEmpty);
-
-  bf.write("a");
-  testBufferLength(1, bf);
-  Expect.equals("a", bf.toString());
-
-  bf = new StringBuffer("");
-  bf.write("a");
-  bf.write("b");
-  Expect.equals("ab", bf.toString());
-
-  bf = new StringBuffer("abc");
-  bf.write("d");
-  bf.write("e");
-  bf.write("f");
-  bf.write("g");
-  bf.write("h");
-  bf.write("i");
-  bf.write("j");
-  bf.write("k");
-  bf.write("l");
-  bf.write("m");
-  bf.write("n");
-  bf.write("o");
-  bf.write("p");
-  bf.write("q");
-  bf.write("r");
-  bf.write("s");
-  bf.write("t");
-  bf.write("u");
-  bf.write("v");
-  bf.write("w");
-  bf.write("x");
-  bf.write("y");
-  bf.write("z");
-  bf.write("\n");
-  bf.write("thequickbrownfoxjumpsoverthelazydog");
-  Expect.equals(
-      "abcdefghijklmnopqrstuvwxyz\n"
-      "thequickbrownfoxjumpsoverthelazydog",
-      bf.toString());
-
-  bf = new StringBuffer("");
-  for (int i = 0; i < 100000; i++) {
-    bf.write('');
-    bf.write("");
-  }
-  Expect.equals("", bf.toString());
-}
-
-void testLength() {
-  StringBuffer bf = new StringBuffer("");
-  testBufferLength(0, bf);
-  bf.write("foo");
-  testBufferLength(3, bf);
-  bf.write("bar");
-  testBufferLength(6, bf);
-  bf.write("");
-  testBufferLength(6, bf);
-}
-
-void testIsEmpty() {
-  StringBuffer bf = new StringBuffer("");
-  Expect.equals(true, bf.isEmpty);
-  bf.write("foo");
-  Expect.equals(false, bf.isEmpty);
-}
-
-void testWriteAll() {
-  StringBuffer bf = new StringBuffer("");
-  bf.writeAll(["foo", "bar", "a", "b", "c"]);
-  Expect.equals("foobarabc", bf.toString());
-
-  bf.writeAll([]);
-  Expect.equals("foobarabc", bf.toString());
-
-  bf.writeAll(["", "", ""]);
-  Expect.equals("foobarabc", bf.toString());
-
-  bf.writeAll(["", "", ""], "");
-  Expect.equals("foobarabc", bf.toString());
-
-  StringBuffer bf2 = new StringBuffer("");
-  bf2.writeAll([], "s");
-  Expect.equals("", bf2.toString());
-
-  StringBuffer bf3 = new StringBuffer("");
-  bf3.writeAll(["a"], "s");
-  Expect.equals("a", bf3.toString());
-
-  StringBuffer bf4 = new StringBuffer("");
-  bf4.writeAll(["a", "b"], "s");
-  Expect.equals("asb", bf4.toString());
-}
-
-void testWriteAll2() {
-  // Passing `null` for separator is an error that is checked when the iterable
-  // is not empty.  This is not specified in the documentation but we want
-  // implementations to be consistent.
-  StringBuffer bf1 = new StringBuffer("");
-  bf1.writeAll([], null);
-  Expect.equals("", bf1.toString());
-
-  StringBuffer bf2 = new StringBuffer("");
-  Expect.throws(() {
-    bf2.writeAll([1], null);
-  });
-}
-
-void testWriteln() {
-  StringBuffer bf1 = new StringBuffer("");
-  bf1.writeln("Hello");
-  Expect.equals("Hello\n", bf1.toString());
-
-  StringBuffer bf2 = new StringBuffer("");
-  bf2.writeln();
-  Expect.equals("\n", bf2.toString());
-
-  StringBuffer bf3 = new StringBuffer("");
-  bf3.writeln("\n");
-  bf3.writeln(null);
-  bf3.writeln(1);
-  Expect.equals("\n\nnull\n1\n", bf3.toString());
-}
-
-void testClear() {
-  StringBuffer bf = new StringBuffer("");
-  bf.write("foo");
-  bf.clear();
-  Expect.equals("", bf.toString());
-  testBufferLength(0, bf);
-
-  bf.write("bar");
-  Expect.equals("bar", bf.toString());
-  testBufferLength(3, bf);
-  bf.clear();
-  Expect.equals("", bf.toString());
-  testBufferLength(0, bf);
-}
-
-void testToString() {
-  StringBuffer bf = new StringBuffer("");
-  Expect.equals("", bf.toString());
-
-  bf = new StringBuffer("foo");
-  Expect.equals("foo", bf.toString());
-
-  bf = new StringBuffer("foo");
-  bf.write("bar");
-  Expect.equals("foobar", bf.toString());
-}
-
-void testChaining() {
-  StringBuffer bf = new StringBuffer("");
-  StringBuffer bf2 = new StringBuffer("");
-  bf2.write("bf2");
-  bf..write("foo")..write("bar")..write(bf2)..write(bf2)..write("toto");
-  Expect.equals("foobarbf2bf2toto", bf.toString());
-}
-
-void testWriteCharCode() {
-  StringBuffer bf1 = new StringBuffer();
-  StringBuffer bf2 = new StringBuffer();
-  bf1.write("a");
-  bf2.writeCharCode(0x61); // a
-  bf1.write("b");
-  bf2.writeCharCode(0x62); // b
-  bf1.write("c");
-  bf2.writeCharCode(0x63); // c
-  bf1.write(new String.fromCharCode(0xD823));
-  bf2.writeCharCode(0xD823);
-  bf1.write(new String.fromCharCode(0xDC23));
-  bf2.writeCharCode(0xDC23);
-  bf1.write("\u{1d49e}");
-  bf2.writeCharCode(0x1d49e);
-  bf1.write("\x00");
-  bf2.writeCharCode(0);
-  Expect.equals(bf1.toString(), bf2.toString());
-  Expect.equals("abc\u{18c23}\u{1d49e}\x00", bf2.toString());
-
-  // Mixing strings and char-codes.
-  bf1.clear();
-  bf1.write("abcde");
-  bf1.writeCharCode(0x61);
-  bf1.writeCharCode(0x62);
-  bf1.writeCharCode(0x63);
-  bf1.write("d");
-  bf1.writeCharCode(0x65);
-  Expect.equals("abcdeabcde", bf1.toString());
-
-  // Out-of-range character codes are not allowed.
-  Expect.throws(() {
-    bf2.writeCharCode(-1);
-  });
-  Expect.throws(() {
-    bf2.writeCharCode(0x110000);
-  });
-}
-
-void testBufferLength(int length, StringBuffer bf) {
-  Expect.equals(length, bf.length);
-  (length == 0 ? Expect.isTrue : Expect.isFalse)(bf.isEmpty);
-  (length != 0 ? Expect.isTrue : Expect.isFalse)(bf.isNotEmpty);
-}
-
-void main() {
-  testToString();
-  testConstructor();
-  testLength();
-  testIsEmpty();
-  testWrite();
-  testWriteCharCode();
-  testWriteAll();
-  testWriteAll2();
-  testWriteln();
-  testClear();
-  testChaining();
-}
diff --git a/tests/corelib_2/string_case_test.dart b/tests/corelib_2/string_case_test.dart
deleted file mode 100644
index 35cd9b87435..00000000000
--- a/tests/corelib_2/string_case_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  testLowerUpper();
-  testSpecialCases();
-}
-
-void testLowerUpper() {
-  var a = "Stop! Smell the Roses.";
-  var allLower = "stop! smell the roses.";
-  var allUpper = "STOP! SMELL THE ROSES.";
-  Expect.equals(allUpper, a.toUpperCase());
-  Expect.equals(allLower, a.toLowerCase());
-}
-
-void testSpecialCases() {
-  // Letters in Latin-1 where the upper case is not in Latin-1.
-
-  // German sharp s. Upper case variant is "SS".
-  Expect.equals("SS", "\xdf".toUpperCase()); //                 //# 01: ok
-  Expect.equals("\xdf", "\xdf".toLowerCase());
-  Expect.equals("ss", "\xdf".toUpperCase().toLowerCase()); //   //# 01: continued
-  // Micro sign (not same as lower-case Greek letter mu, U+03BC).
-  Expect.equals("\u039c", "\xb5".toUpperCase()); //             //# 02: ok
-  Expect.equals("\xb5", "\xb5".toLowerCase());
-  Expect.equals("\u03Bc", //                                    //# 02: continued
-                "\xb5".toUpperCase().toLowerCase()); //         //# 02: continued
-  // Small letter y diaeresis.
-  Expect.equals("\u0178", "\xff".toUpperCase()); //             //# 03: ok
-  Expect.equals("\xff", "\xff".toLowerCase());
-  Expect.equals("\xff", "\xff".toUpperCase().toLowerCase()); // //# 03: continued
-  // Zero.
-  Expect.equals("\x00", "\x00".toLowerCase());
-  Expect.equals("\x00", "\x00".toUpperCase());
-
-  // Test all combinations of ordering of lower-case, upper-case and
-  // special-when-upper-cased characters.
-  Expect.equals("AA\u0178", "Aa\xff".toUpperCase()); //         //# 03: continued
-  Expect.equals("AA\u0178", "aA\xff".toUpperCase()); //         //# 03: continued
-  Expect.equals("A\u0178A", "A\xffa".toUpperCase()); //         //# 03: continued
-  Expect.equals("A\u0178A", "a\xffA".toUpperCase()); //         //# 03: continued
-  Expect.equals("\u0178AA", "\xffAa".toUpperCase()); //         //# 03: continued
-  Expect.equals("\u0178AA", "\xffaA".toUpperCase()); //         //# 03: continued
-
-  Expect.equals("aa\xff", "Aa\xff".toLowerCase());
-  Expect.equals("aa\xff", "aA\xff".toLowerCase());
-  Expect.equals("a\xffa", "A\xffa".toLowerCase());
-  Expect.equals("a\xffa", "a\xffA".toLowerCase());
-  Expect.equals("\xffaa", "\xffAa".toLowerCase());
-  Expect.equals("\xffaa", "\xffaA".toLowerCase());
-}
diff --git a/tests/corelib_2/string_codeunits_test.dart b/tests/corelib_2/string_codeunits_test.dart
deleted file mode 100644
index 074ca909c66..00000000000
--- a/tests/corelib_2/string_codeunits_test.dart
+++ /dev/null
@@ -1,80 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  test(String s) {
-    List<int> units = s.codeUnits;
-    List<int> expectedUnits = <int>[];
-    for (int i = 0; i < s.length; i++) {
-      expectedUnits.add(s.codeUnitAt(i));
-    }
-
-    Expect.equals(s.length, units.length);
-    for (int i = 0; i < s.length; i++) {
-      Expect.equals(s.codeUnitAt(i), units.elementAt(i));
-    }
-
-    // for-in
-    var res = [];
-    for (int unit in units) {
-      res.add(unit);
-    }
-    Expect.listEquals(expectedUnits, res);
-
-    // .map
-    Expect.listEquals(expectedUnits.map((x) => x.toRadixString(16)).toList(),
-        units.map((x) => x.toRadixString(16)).toList());
-
-    if (s == "") {
-      Expect.throwsStateError(() => units.first);
-      Expect.throwsStateError(() => units.last);
-      Expect.throwsRangeError(() => units[0]);
-      Expect.throwsUnsupportedError(() => units[0] = 499);
-      Expect.listEquals([], units.sublist(0, 0));
-      Expect.equals(-1, units.indexOf(42));
-      Expect.equals(-1, units.lastIndexOf(499));
-    } else {
-      Expect.equals(s.codeUnitAt(0), units.first);
-      Expect.equals(s.codeUnitAt(s.length - 1), units.last);
-      Expect.equals(s.codeUnitAt(0), units[0]);
-      Expect.throwsUnsupportedError(() => units[0] = 499);
-      List<int> sub = units.sublist(1);
-      Expect.listEquals(s.substring(1, s.length).codeUnits, sub);
-      Expect.equals(-1, units.indexOf(-1));
-      Expect.equals(0, units.indexOf(units[0]));
-      Expect.equals(-1, units.lastIndexOf(-1));
-      Expect.equals(
-          units.length - 1, units.lastIndexOf(units[units.length - 1]));
-    }
-
-    Iterable reversed = units.reversed;
-    int i = units.length - 1;
-    for (int codeUnit in reversed) {
-      Expect.equals(units[i--], codeUnit);
-    }
-  }
-
-  test("");
-  test("abc");
-  test("\x00\u0000\u{000000}");
-  test("\u{ffff}\u{10000}\u{10ffff}");
-  String string = new String.fromCharCodes(
-      [0xdc00, 0xd800, 61, 0xd9ab, 0xd9ab, 0xddef, 0xddef, 62, 0xdc00, 0xd800]);
-  test(string);
-  string = "\x00\x7f\xff\u0100\ufeff\uffef\uffff"
-      "\u{10000}\u{12345}\u{1d800}\u{1dc00}\u{1ffef}\u{1ffff}";
-  test(string);
-
-  // Reading each unit of a surrogate pair works.
-  var r = "\u{10000}".codeUnits;
-  var it = r.iterator;
-  Expect.isTrue(it.moveNext());
-  Expect.equals(0xD800, it.current);
-  Expect.isTrue(it.moveNext());
-  Expect.equals(0xDC00, it.current);
-}
diff --git a/tests/corelib_2/string_from_environment2_test.dart b/tests/corelib_2/string_from_environment2_test.dart
deleted file mode 100644
index 6a7b5914c57..00000000000
--- a/tests/corelib_2/string_from_environment2_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// SharedOptions=-Da=a -Da=bb -Db=bb -Dc=ccc -Da=ccc -Db=ccc
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.equals('ccc', const String.fromEnvironment('a'));
-  Expect.equals('ccc', const String.fromEnvironment('b'));
-  Expect.equals('ccc', const String.fromEnvironment('c'));
-}
diff --git a/tests/corelib_2/string_from_environment3_test.dart b/tests/corelib_2/string_from_environment3_test.dart
deleted file mode 100644
index 2d10f32e07c..00000000000
--- a/tests/corelib_2/string_from_environment3_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  const String.fromEnvironment('NOT_FOUND', defaultValue: 1); // //# 01: compile-time error
-  const String.fromEnvironment('NOT_FOUND', defaultValue: true); // //# 02: compile-time error
-  const String.fromEnvironment(null); // //# 03: compile-time error
-  const String.fromEnvironment(1); // //# 04: compile-time error
-  const String.fromEnvironment([]); // //# 05: compile-time error
-}
diff --git a/tests/corelib_2/string_from_environment_test.dart b/tests/corelib_2/string_from_environment_test.dart
deleted file mode 100644
index b55f9b00856..00000000000
--- a/tests/corelib_2/string_from_environment_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// SharedOptions=-Da=a -Db=bb -Dc=ccc -Dd= --define=e=eeee
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.equals('a', const String.fromEnvironment('a'));
-  Expect.equals('bb', const String.fromEnvironment('b'));
-  Expect.equals('ccc', const String.fromEnvironment('c'));
-  Expect.equals('', const String.fromEnvironment('d'));
-  Expect.equals('eeee', const String.fromEnvironment('e'));
-}
diff --git a/tests/corelib_2/string_from_list_test.dart b/tests/corelib_2/string_from_list_test.dart
deleted file mode 100644
index d7aa89727bc..00000000000
--- a/tests/corelib_2/string_from_list_test.dart
+++ /dev/null
@@ -1,84 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  Expect.equals("", new String.fromCharCodes([]));
-  Expect.equals("", new String.fromCharCodes(const []));
-  Expect.equals("AB", new String.fromCharCodes([65, 66]));
-  Expect.equals("AB", new String.fromCharCodes(const [65, 66]));
-  Expect.equals("Ærø", new String.fromCharCodes(const [0xc6, 0x72, 0xf8]));
-  Expect.equals("\u{1234}", new String.fromCharCodes([0x1234]));
-  Expect.equals("\u{12345}*", new String.fromCharCodes([0x12345, 42]));
-  {
-    var a = <int>[];
-    a.add(65);
-    a.add(66);
-    Expect.equals("AB", new String.fromCharCodes(a));
-  }
-
-  // Long list (bug 6919).
-  for (int len in [499, 500, 501, 999, 100000]) {
-    List<int> list = new List.filled(len, null);
-    for (int i = 0; i < len; i++) {
-      list[i] = 65 + (i % 26);
-    }
-    for (int i = len - 9; i < len; i++) {
-      list[i] = 48 + (len - i);
-    }
-    // We should not throw a stack overflow here.
-    String long = new String.fromCharCodes(list);
-    // Minimal sanity checking on the string.
-    Expect.isTrue(long.startsWith('ABCDE'));
-    Expect.isTrue(long.endsWith('987654321'));
-    int middle = len ~/ 2;
-    middle -= middle % 26;
-    Expect.equals('XYZABC', long.substring(middle - 3, middle + 3));
-    Expect.equals(len, long.length);
-  }
-
-  // Should work with iterables and non-default-lists (http://dartbug.com/8922)
-  Expect.equals("CBA", new String.fromCharCodes([65, 66, 67].reversed));
-  Expect.equals(
-      "BCD", new String.fromCharCodes([65, 66, 67].map((x) => x + 1)));
-  Expect.equals(
-      "AC", new String.fromCharCodes([0x41, 0x42, 0x43].where((x) => x.isOdd)));
-  Expect.equals(
-      "CE",
-      new String.fromCharCodes(
-          [0x41, 0x42, 0x43].where((x) => x.isOdd).map((x) => x + 2)));
-  Expect.equals(
-      "ABC", new String.fromCharCodes(new Iterable.generate(3, (x) => 65 + x)));
-  Expect.equals("ABC", new String.fromCharCodes("ABC".codeUnits));
-  Expect.equals(
-      "BCD", new String.fromCharCodes("ABC".codeUnits.map((x) => x + 1)));
-  Expect.equals("BCD", new String.fromCharCodes("ABC".runes.map((x) => x + 1)));
-
-  var nonBmpCharCodes = [0, 0xD812, 0xDC34, 0x14834, 0xDC34, 0xD812];
-  var nonBmp = new String.fromCharCodes(nonBmpCharCodes);
-  Expect.equals(7, nonBmp.length);
-  Expect.equals(0, nonBmp.codeUnitAt(0));
-  Expect.equals(0xD812, nonBmp.codeUnitAt(1)); // Separated surrogate pair
-  Expect.equals(0xDC34, nonBmp.codeUnitAt(2));
-  Expect.equals(0xD812, nonBmp.codeUnitAt(3)); // Single non-BMP code point.
-  Expect.equals(0xDC34, nonBmp.codeUnitAt(4));
-  Expect.equals(0xDC34, nonBmp.codeUnitAt(5)); // Unmatched surrogate.
-  Expect.equals(0xD812, nonBmp.codeUnitAt(6)); // Unmatched surrogate.
-
-  var reversedNonBmp = new String.fromCharCodes(nonBmpCharCodes.reversed);
-  Expect.equals(7, reversedNonBmp.length);
-  Expect.equals(0, reversedNonBmp.codeUnitAt(6));
-  Expect.equals(0xD812, reversedNonBmp.codeUnitAt(5));
-  Expect.equals(0xDC34, reversedNonBmp.codeUnitAt(4));
-  Expect.equals(0xDC34, reversedNonBmp.codeUnitAt(3));
-  Expect.equals(0xD812, reversedNonBmp.codeUnitAt(2));
-  Expect.equals(0xDC34, reversedNonBmp.codeUnitAt(1));
-  Expect.equals(0xD812, reversedNonBmp.codeUnitAt(0));
-
-  Expect.equals(nonBmp, new String.fromCharCodes(nonBmp.codeUnits));
-  Expect.equals(nonBmp, new String.fromCharCodes(nonBmp.runes));
-}
diff --git a/tests/corelib_2/string_fromcharcode_test.dart b/tests/corelib_2/string_fromcharcode_test.dart
deleted file mode 100644
index 92176242730..00000000000
--- a/tests/corelib_2/string_fromcharcode_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.equals("A", new String.fromCharCode(65));
-  Expect.equals("B", new String.fromCharCode(66));
-  var gClef = new String.fromCharCode(0x1D11E);
-  Expect.equals(2, gClef.length);
-  Expect.equals(0xD834, gClef.codeUnitAt(0));
-  Expect.equals(0xDD1E, gClef.codeUnitAt(1));
-
-  // Unmatched surrogates.
-  var unmatched = new String.fromCharCode(0xD800);
-  Expect.equals(1, unmatched.length);
-  Expect.equals(0xD800, unmatched.codeUnitAt(0));
-  unmatched = new String.fromCharCode(0xDC00);
-  Expect.equals(1, unmatched.length);
-  Expect.equals(0xDC00, unmatched.codeUnitAt(0));
-
-  Expect.throwsArgumentError(() => new String.fromCharCode(-1));
-
-  // Invalid code point.
-  Expect.throwsArgumentError(() => new String.fromCharCode(0x110000));
-  Expect.throwsArgumentError(() => new String.fromCharCode(0x110001));
-}
diff --git a/tests/corelib_2/string_fromcharcodes_test.dart b/tests/corelib_2/string_fromcharcodes_test.dart
deleted file mode 100644
index a93a11762e1..00000000000
--- a/tests/corelib_2/string_fromcharcodes_test.dart
+++ /dev/null
@@ -1,301 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "dart:typed_data";
-
-main() {
-  iter(count, [values]) => values is List
-      ? new Iterable<int>.generate(count, (x) => values[x])
-      : new Iterable<int>.generate(count, (x) => values);
-  test(expect, iter, [start = 0, end]) {
-    var actual = new String.fromCharCodes(iter, start, end);
-    Expect.equals(expect, actual);
-  }
-
-  testThrows(iterable, [start = 0, end]) {
-    Expect.throws(() {
-      new String.fromCharCodes(iterable, start, end);
-    });
-  }
-
-  test("", iter(0));
-  test("", <int>[]);
-  test("", const <int>[]);
-  test("", new List<int>.filled(0, null));
-  test("", new Uint8List(0));
-  test("", new Uint16List(0));
-  test("", new Uint32List(0));
-  test("", "".codeUnits);
-
-  test("\x00", iter(1, 0));
-  test("\x00", [0]);
-  test("\x00", const [0]);
-  test("\x00", new List<int>.filled(1, null)..[0] = 0);
-  test("\x00", new Uint8List(1));
-  test("\x00", new Uint16List(1));
-  test("\x00", new Uint32List(1));
-  test("\x00", "\x00".codeUnits);
-
-  test("\xff", iter(1, 255));
-  test("\xFF", [255]);
-  test("\xFF", const [255]);
-  test("\xFF", new List<int>.filled(1, null)..[0] = 255);
-  test("\xFF", new Uint8List(1)..[0] = 255);
-  test("\xFF", new Uint16List(1)..[0] = 255);
-  test("\xFF", new Uint32List(1)..[0] = 255);
-  test("\xFF", "\xFF".codeUnits);
-
-  test("\u0100", iter(1, 256));
-  test("\u0100", [256]);
-  test("\u0100", const [256]);
-  test("\u0100", new List<int>.filled(1, null)..[0] = 256);
-  test("\u0100", new Uint16List(1)..[0] = 256);
-  test("\u0100", new Uint32List(1)..[0] = 256);
-  test("\u0100", "\u0100".codeUnits);
-
-  test("\uffff", iter(1, 65535));
-  test("\uffff", [65535]);
-  test("\uffff", const [65535]);
-  test("\uffff", new List<int>.filled(1, null)..[0] = 65535);
-  test("\uffff", new Uint16List(1)..[0] = 65535);
-  test("\uffff", new Uint32List(1)..[0] = 65535);
-  test("\uffff", "\uffff".codeUnits);
-
-  test("\u{10000}", iter(1, 65536));
-  test("\u{10000}", [65536]);
-  test("\u{10000}", const [65536]);
-  test("\u{10000}", new List<int>.filled(1, null)..[0] = 65536);
-  test("\u{10000}", new Uint32List(1)..[0] = 65536);
-  test("\u{10000}", "\u{10000}".codeUnits);
-
-  test("\u{10FFFF}", iter(1, 0x10FFFF));
-  test("\u{10FFFF}", [0x10FFFF]);
-  test("\u{10FFFF}", const [0x10FFFF]);
-  test("\u{10FFFF}", new List<int>.filled(1, null)..[0] = 0x10FFFF);
-  test("\u{10FFFF}", new Uint32List(1)..[0] = 0x10FFFF);
-
-  test("\u{10ffff}", iter(2, [0xDBFF, 0xDFFF]));
-  test("\u{10ffff}", [0xDBFF, 0xDFFF]);
-  test("\u{10ffff}", const [0xDBFF, 0xDFFF]);
-  test(
-      "\u{10ffff}",
-      new List<int>.filled(2, null)
-        ..[0] = 0xDBFF
-        ..[1] = 0xDFFF);
-  test(
-      "\u{10ffff}",
-      new Uint16List(2)
-        ..[0] = 0xDBFF
-        ..[1] = 0xDFFF);
-  test(
-      "\u{10ffff}",
-      new Uint32List(2)
-        ..[0] = 0xDBFF
-        ..[1] = 0xDFFF);
-  test("\u{10FFFF}", "\u{10FFFF}".codeUnits);
-
-  var leadSurrogate = "\u{10ffff}"[0];
-  test(leadSurrogate, iter(1, 0xDBFF));
-  test(leadSurrogate, [0xDBFF]);
-  test(leadSurrogate, const [0xDBFF]);
-  test(leadSurrogate, new List<int>.filled(1, null)..[0] = 0xDBFF);
-  test(leadSurrogate, new Uint16List(1)..[0] = 0xDBFF);
-  test(leadSurrogate, new Uint32List(1)..[0] = 0xDBFF);
-  test(leadSurrogate, leadSurrogate.codeUnits);
-
-  var tailSurrogate = "\u{10ffff}"[1];
-  test(tailSurrogate, iter(1, 0xDFFF));
-  test(tailSurrogate, [0xDFFF]);
-  test(tailSurrogate, const [0xDFFF]);
-  test(tailSurrogate, new List<int>.filled(1, null)..[0] = 0xDFFF);
-  test(tailSurrogate, new Uint16List(1)..[0] = 0xDFFF);
-  test(tailSurrogate, new Uint32List(1)..[0] = 0xDFFF);
-  test(tailSurrogate, tailSurrogate.codeUnits);
-
-  testThrows(null);
-  testThrows("not an iterable");
-  testThrows(42);
-  testThrows([-1]);
-  testThrows(new List<int>.filled(1, null)..[0] = -1);
-  testThrows(const [-1]);
-  testThrows(new Int8List(1)..[0] = -1);
-  testThrows(new Int16List(1)..[0] = -1);
-  testThrows(new Int32List(1)..[0] = -1);
-  testThrows([0x110000]);
-  testThrows(new List<int>.filled(1, null)..[0] = 0x110000);
-  testThrows(const [0x110000]);
-  testThrows(new Int32List(1)..[0] = 0x110000);
-
-  // Check start/end
-  var list = const [0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48];
-  for (var iterable in [
-    iter(list.length, list),
-    list.toList(growable: true),
-    list.toList(growable: false),
-    list,
-    new Uint8List(8)..setRange(0, 8, list),
-    new Uint16List(8)..setRange(0, 8, list),
-    new Uint32List(8)..setRange(0, 8, list),
-    "ABCDEFGH".codeUnits,
-  ]) {
-    test("ABCDEFGH", iterable);
-    // start provided, end is null.
-    test("ABCDEFGH", iterable, 0);
-    test("BCDEFGH", iterable, 1);
-    test("H", iterable, 7);
-    test("", iterable, 8);
-    test("", iterable, 10);
-    // start = 0, end provided.
-    test("ABCDEFGH", iterable, 0);
-    test("A", iterable, 0, 1);
-    test("AB", iterable, 0, 2);
-    test("ABCDEFG", iterable, 0, 7);
-    test("ABCDEFGH", iterable, 0, 8);
-    test("ABCDEFGH", iterable, 0, 10);
-    test("", iterable, 0, 0);
-    // Both provided and start > 0.
-    test("GH", iterable, 6, 8);
-    test("GH", iterable, 6, 10);
-    test("DE", iterable, 3, 5);
-    test("", iterable, 8, 10);
-    test("", iterable, 10, 12);
-    test("", iterable, 3, 3);
-  }
-  // Can split surrogates in input, but not a single big code point.
-  test(leadSurrogate, [0xDBFF, 0xDFFF], 0, 1);
-  test(tailSurrogate, [0xDBFF, 0xDFFF], 1);
-  test("\u{10FFFF}", [0x10FFFF], 0, 1);
-
-  void testThrowsRange(iterable, [start = 0, end]) {
-    Expect.throwsRangeError(
-        () => new String.fromCharCodes(iterable, start, end));
-  }
-
-  // Test varying slices of the code units of a string.
-  testSubstring(string) {
-    var codes = string.codeUnits;
-    int length = string.length;
-    for (var iterable in [
-      iter(length, codes),
-      codes.toList(growable: true),
-      codes.toList(growable: false),
-      new Uint16List(length)..setRange(0, length, codes),
-      new Int32List(length)..setRange(0, length, codes),
-      new Uint32List(length)..setRange(0, length, codes),
-      codes,
-    ]) {
-      var newString = new String.fromCharCodes(iterable);
-      Expect.equals(string, newString);
-      for (int i = 0; i < length; i = i * 2 + 1) {
-        test(string.substring(i), iterable, i);
-        test(string.substring(0, i), iterable, 0, i);
-        for (int j = 0; i + j < length; j = j * 2 + 1) {
-          test(string.substring(i, i + j), iterable, i, i + j);
-        }
-      }
-
-      testThrowsRange(iterable, -1);
-      testThrowsRange(iterable, 0, -1);
-      testThrowsRange(iterable, 2, 1);
-
-      // Positions after end are acceptable.
-      test(string, iterable, 0, length + 1);
-      test(string.substring(string.length ~/ 2), iterable, string.length ~/ 2,
-          length + 1);
-      test("", iterable, length + 1);
-      test("", iterable, length + 1, length + 2);
-    }
-  }
-
-  testSubstring("");
-  testSubstring("ABCDEFGH");
-  // length > 128
-  testSubstring("ABCDEFGH" * 33);
-  testSubstring("\x00" * 357);
-  // length > 128 and non-ASCII.
-  testSubstring("\uFFFD\uFFFE\u{10000}\u{10ffff}c\x00" * 37);
-
-  // Large List.
-  var megaList = ("abcde" * 200000).codeUnits.toList();
-  test("abcde" * 199998, megaList, 5, 999995);
-  // Large Uint8List.
-  test("abcde" * 199998, new Uint8List.fromList(megaList), 5, 999995);
-
-  const cLatin1 = const [0x00, 0xff];
-  const cUtf16 = const [0x00, 0xffff, 0xdfff, 0xdbff, 0xdfff, 0xdbff];
-  const cCodepoints = const [0x00, 0xffff, 0xdfff, 0x10ffff, 0xdbff];
-  List gLatin1 = cLatin1.toList(growable: true);
-  List gUtf16 = cUtf16.toList(growable: true);
-  List gCodepoints = cCodepoints.toList(growable: true);
-  List fLatin1 = cLatin1.toList(growable: false);
-  List fUtf16 = cUtf16.toList(growable: false);
-  List fCodepoints = cCodepoints.toList(growable: false);
-  Uint8List bLatin1 = new Uint8List(2)..setRange(0, 2, cLatin1);
-  Uint16List wLatin1 = new Uint16List(2)..setRange(0, 2, cLatin1);
-  Uint16List wUtf16 = new Uint16List(6)..setRange(0, 6, cUtf16);
-  Uint32List lLatin1 = new Uint32List(2)..setRange(0, 2, cLatin1);
-  Uint32List lUtf16 = new Uint32List(6)..setRange(0, 6, cUtf16);
-  Uint32List lCodepoints = new Uint32List(5)..setRange(0, 5, cCodepoints);
-  Uint8List bvLatin1 = new Uint8List.view(bLatin1.buffer);
-  Uint16List wvLatin1 = new Uint16List.view(wLatin1.buffer);
-  Uint16List wvUtf16 = new Uint16List.view(wUtf16.buffer);
-  Uint32List lvLatin1 = new Uint32List.view(lLatin1.buffer);
-  Uint32List lvUtf16 = new Uint32List.view(lUtf16.buffer);
-  Uint32List lvCodepoints = new Uint32List.view(lCodepoints.buffer);
-  var buffer = new Uint8List(200).buffer;
-  Uint8List bbLatin1 = new Uint8List.view(buffer, 3, 2)..setAll(0, bLatin1);
-  Uint16List wbLatin1 = new Uint16List.view(buffer, 8, 2)..setAll(0, wLatin1);
-  Uint16List wbUtf16 = new Uint16List.view(buffer, 16, 6)..setAll(0, wUtf16);
-  Uint32List lbLatin1 = new Uint32List.view(buffer, 32, 2)..setAll(0, lLatin1);
-  Uint32List lbUtf16 = new Uint32List.view(buffer, 64, 6)..setAll(0, lUtf16);
-  Uint32List lbCodepoints = new Uint32List.view(buffer, 128, 5)
-    ..setAll(0, lCodepoints);
-
-  String sLatin1 = "\x00\xff";
-  String sUnicode =
-      "\x00\uffff$tailSurrogate$leadSurrogate$tailSurrogate$leadSurrogate";
-  for (int i = 0; i < 2; i++) {
-    for (int j = i + 1; j < 2; j++) {
-      test(sLatin1.substring(i, j), cLatin1, i, j);
-      test(sLatin1.substring(i, j), gLatin1, i, j);
-      test(sLatin1.substring(i, j), fLatin1, i, j);
-      test(sLatin1.substring(i, j), bLatin1, i, j);
-      test(sLatin1.substring(i, j), wLatin1, i, j);
-      test(sLatin1.substring(i, j), lLatin1, i, j);
-      test(sLatin1.substring(i, j), bvLatin1, i, j);
-      test(sLatin1.substring(i, j), wvLatin1, i, j);
-      test(sLatin1.substring(i, j), lvLatin1, i, j);
-      test(sLatin1.substring(i, j), bbLatin1, i, j);
-      test(sLatin1.substring(i, j), wbLatin1, i, j);
-      test(sLatin1.substring(i, j), lbLatin1, i, j);
-    }
-  }
-  for (int i = 0; i < 6; i++) {
-    for (int j = i + 1; j < 6; j++) {
-      test(sUnicode.substring(i, j), cUtf16, i, j);
-      test(sUnicode.substring(i, j), gUtf16, i, j);
-      test(sUnicode.substring(i, j), fUtf16, i, j);
-      test(sUnicode.substring(i, j), wUtf16, i, j);
-      test(sUnicode.substring(i, j), lUtf16, i, j);
-      test(sUnicode.substring(i, j), wvUtf16, i, j);
-      test(sUnicode.substring(i, j), lvUtf16, i, j);
-      test(sUnicode.substring(i, j), wbUtf16, i, j);
-      test(sUnicode.substring(i, j), lbUtf16, i, j);
-    }
-  }
-  for (int i = 0; i < 5; i++) {
-    for (int j = i + 1; j < 5; j++) {
-      int stringEnd = j < 4 ? j : j + 1;
-      test(sUnicode.substring(i, stringEnd), cCodepoints, i, j);
-      test(sUnicode.substring(i, stringEnd), gCodepoints, i, j);
-      test(sUnicode.substring(i, stringEnd), fCodepoints, i, j);
-      test(sUnicode.substring(i, stringEnd), lCodepoints, i, j);
-      test(sUnicode.substring(i, stringEnd), lvCodepoints, i, j);
-      test(sUnicode.substring(i, stringEnd), lbCodepoints, i, j);
-    }
-  }
-}
diff --git a/tests/corelib_2/string_interpolation_error_test.dart b/tests/corelib_2/string_interpolation_error_test.dart
deleted file mode 100644
index b9764e60efb..00000000000
--- a/tests/corelib_2/string_interpolation_error_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class BadToString {
-  @override
-  String toString() => null;
-}
-
-void test(expected, object) {
-  var message = '';
-  if (expected == null) {
-    Expect.throws(() => '$object',
-        (error) => '$error'.contains("toString method returned 'null'"));
-  } else {
-    Expect.equals(expected, '$object');
-  }
-}
-
-void main() {
-  test("123", 123);
-  test("null", null);
-  test(null, BadToString());
-  test(null, [BadToString()]);
-  test(null, {BadToString()});
-}
diff --git a/tests/corelib_2/string_operations_with_null_test.dart b/tests/corelib_2/string_operations_with_null_test.dart
deleted file mode 100644
index 66ab5754057..00000000000
--- a/tests/corelib_2/string_operations_with_null_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-returnStringOrNull() {
-  return new DateTime.now().millisecondsSinceEpoch == 0 ? 'foo' : null;
-}
-
-main() {
-  Expect.throwsArgumentError(() => 'foo' + returnStringOrNull());
-  Expect.throws(() => 'foo'.split(returnStringOrNull()),
-      (e) => e is ArgumentError || e is NoSuchMethodError);
-}
diff --git a/tests/corelib_2/string_operator_multiply_test.dart b/tests/corelib_2/string_operator_multiply_test.dart
deleted file mode 100644
index 0dc20f89ae8..00000000000
--- a/tests/corelib_2/string_operator_multiply_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.equals('', 'a' * -11);
-  Expect.equals('', 'α' * -11);
-  Expect.equals('', '∀' * -11);
-
-  Expect.equals('', 'a' * 0);
-  Expect.equals('', 'α' * 0);
-  Expect.equals('', '∀' * 0);
-
-  Expect.equals('a', 'a' * 1);
-  Expect.equals('α', 'α' * 1);
-  Expect.equals('∀', '∀' * 1);
-
-  Expect.equals('aa', 'a' * 2);
-  Expect.equals('αα', 'α' * 2);
-  Expect.equals('∀∀', '∀' * 2);
-
-  Expect.equals('aaa', 'a' * 3);
-  Expect.equals('ααα', 'α' * 3);
-  Expect.equals('∀∀∀', '∀' * 3);
-
-  Expect.equals('', '' * 0x4000000000000000);
-
-  Expect.throws(() => 'a' * 0x4000000000000000);
-  Expect.throws(() => 'α' * 0x4000000000000000);
-  Expect.throws(() => '∀' * 0x4000000000000000);
-
-  for (final string in ['a', 'α', '∀', 'hello world', 'abc', 'α∀α']) {
-    for (final count in [0, 1, 10, 100, 255, 256, 257, 1000, 100000]) {
-      final expected = List.filled(count, string).join();
-      final actual = string * count;
-      Expect.equals(expected, actual);
-    }
-  }
-
-  // http://dartbug.com/49289
-  Expect.throws(() => 'abcd' * 0x4000000000000000);
-  Expect.throws(() => 'αxyz' * 0x4000000000000000);
-  Expect.throws(() => '∀pqr' * 0x4000000000000000);
-
-  Expect.throws(() => 'abcd' * (0x4000000000000000 + 1));
-  Expect.throws(() => 'αxyz' * (0x4000000000000000 + 1));
-  Expect.throws(() => '∀pqr' * (0x4000000000000000 + 1));
-}
diff --git a/tests/corelib_2/string_pattern_test.dart b/tests/corelib_2/string_pattern_test.dart
deleted file mode 100644
index 35d34ee7e8a..00000000000
--- a/tests/corelib_2/string_pattern_test.dart
+++ /dev/null
@@ -1,113 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing String.allMatches.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-String str = "this is a string with hello here and hello there";
-
-main() {
-  testNoMatch();
-  testOneMatch();
-  testTwoMatches();
-  testEmptyPattern();
-  testEmptyString();
-  testEmptyPatternAndString();
-  testMatchAsPrefix();
-  testAllMatchesStart();
-}
-
-testNoMatch() {
-  // Also tests that RegExp groups don't work.
-  String helloPattern = "with (hello)";
-  Iterable<Match> matches = helloPattern.allMatches(str);
-  Expect.isFalse(matches.iterator.moveNext());
-}
-
-testOneMatch() {
-  String helloPattern = "with hello";
-  Iterable<Match> matches = helloPattern.allMatches(str);
-  var iterator = matches.iterator;
-  Expect.isTrue(iterator.moveNext());
-  Match match = iterator.current;
-  Expect.isFalse(iterator.moveNext());
-  Expect.equals(str.indexOf('with', 0), match.start);
-  Expect.equals(str.indexOf('with', 0) + helloPattern.length, match.end);
-  Expect.equals(helloPattern, match.pattern);
-  Expect.equals(str, match.input);
-  Expect.equals(helloPattern, match[0]);
-  Expect.equals(0, match.groupCount);
-}
-
-testTwoMatches() {
-  String helloPattern = "hello";
-  Iterable<Match> matches = helloPattern.allMatches(str);
-
-  int count = 0;
-  int start = 0;
-  for (var match in matches) {
-    count++;
-    Expect.equals(str.indexOf('hello', start), match.start);
-    Expect.equals(str.indexOf('hello', start) + helloPattern.length, match.end);
-    Expect.equals(helloPattern, match.pattern);
-    Expect.equals(str, match.input);
-    Expect.equals(helloPattern, match[0]);
-    Expect.equals(0, match.groupCount);
-    start = match.end;
-  }
-  Expect.equals(2, count);
-}
-
-testEmptyPattern() {
-  String pattern = "";
-  Iterable<Match> matches = pattern.allMatches(str);
-  Expect.isTrue(matches.iterator.moveNext());
-}
-
-testEmptyString() {
-  String pattern = "foo";
-  String str = "";
-  Iterable<Match> matches = pattern.allMatches(str);
-  Expect.isFalse(matches.iterator.moveNext());
-}
-
-testEmptyPatternAndString() {
-  String pattern = "";
-  String str = "";
-  Iterable<Match> matches = pattern.allMatches(str);
-  Expect.isTrue(matches.iterator.moveNext());
-}
-
-testMatchAsPrefix() {
-  String pattern = "an";
-  String str = "banana";
-  Expect.isNull(pattern.matchAsPrefix(str));
-  Expect.isNull(pattern.matchAsPrefix(str, 0));
-  var m = pattern.matchAsPrefix(str, 1);
-  Expect.equals("an", m[0]);
-  Expect.equals(1, m.start);
-  Expect.isNull(pattern.matchAsPrefix(str, 2));
-  m = pattern.matchAsPrefix(str, 3);
-  Expect.equals("an", m[0]);
-  Expect.equals(3, m.start);
-  Expect.isNull(pattern.matchAsPrefix(str, 4));
-  Expect.isNull(pattern.matchAsPrefix(str, 5));
-  Expect.isNull(pattern.matchAsPrefix(str, 6));
-  Expect.throws(() => pattern.matchAsPrefix(str, -1));
-  Expect.throws(() => pattern.matchAsPrefix(str, 7));
-}
-
-testAllMatchesStart() {
-  String p = "ass";
-  String s = "assassin";
-  Expect.equals(2, p.allMatches(s).length);
-  Expect.equals(2, p.allMatches(s, 0).length);
-  Expect.equals(1, p.allMatches(s, 1).length);
-  Expect.equals(0, p.allMatches(s, 4).length);
-  Expect.equals(0, p.allMatches(s, s.length).length);
-  Expect.throws(() => p.allMatches(s, -1));
-  Expect.throws(() => p.allMatches(s, s.length + 1));
-}
diff --git a/tests/corelib_2/string_replace_all_2_test.dart b/tests/corelib_2/string_replace_all_2_test.dart
deleted file mode 100644
index 77dc24306c2..00000000000
--- a/tests/corelib_2/string_replace_all_2_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// dart2jsOptions=-Ddart2js.testing.String.replaceAll.force.regexp=true
-
-// @dart = 2.9
-
-import "string_replace_all_test.dart" as base;
-
-main() {
-  base.main();
-}
diff --git a/tests/corelib_2/string_replace_all_common.dart b/tests/corelib_2/string_replace_all_common.dart
deleted file mode 100644
index d4deff12e56..00000000000
--- a/tests/corelib_2/string_replace_all_common.dart
+++ /dev/null
@@ -1,146 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-testAll(Pattern Function(Pattern) wrap) {
-  testReplaceAll(wrap);
-  testReplaceAllMapped(wrap);
-  testSplitMapJoin(wrap);
-}
-
-testReplaceAll(Pattern Function(Pattern) wrap) {
-  Expect.equals("aXXcaXXdae", "abcabdae".replaceAll(wrap("b"), "XX"));
-
-  // Test with the replaced string at the beginning.
-  Expect.equals("XXbcXXbdXXe", "abcabdae".replaceAll(wrap("a"), "XX"));
-
-  // Test with the replaced string at the end.
-  Expect.equals("abcabdaXX", "abcabdae".replaceAll(wrap("e"), "XX"));
-
-  // Test when there are no occurrence of the string to replace.
-  Expect.equals("abcabdae", "abcabdae".replaceAll(wrap("f"), "XX"));
-
-  // Test when the string to change is the empty string.
-  Expect.equals("", "".replaceAll(wrap("from"), "to"));
-
-  // Test when the string to change is a substring of the string to
-  // replace.
-  Expect.equals("fro", "fro".replaceAll(wrap("from"), "to"));
-
-  // Test when the string to change is the replaced string.
-  Expect.equals("to", "from".replaceAll(wrap("from"), "to"));
-
-  // Test when matches are adjacent
-  Expect.equals("toto", "fromfrom".replaceAll(wrap("from"), "to"));
-
-  // Test when the string to change is the replacement string.
-  Expect.equals("to", "to".replaceAll(wrap("from"), "to"));
-
-  // Test replacing by the empty string.
-  Expect.equals("bcbde", "abcabdae".replaceAll(wrap("a"), ""));
-  Expect.equals("AB", "AfromB".replaceAll(wrap("from"), ""));
-
-  // Test changing the empty string.
-  Expect.equals("to", "".replaceAll(wrap(""), "to"));
-
-  // Test replacing the empty string.
-  Expect.equals("toAtoBtoCto", "ABC".replaceAll(wrap(""), "to"));
-
-  // Pattern strings containing RegExp metacharacters - these are not
-  // interpreted as RegExps.
-  Expect.equals(r"$$", "||".replaceAll(wrap("|"), r"$"));
-  Expect.equals(r"$$$$", "||".replaceAll(wrap("|"), r"$$"));
-  Expect.equals(r"x$|x", "x|.|x".replaceAll(wrap("|."), r"$"));
-  Expect.equals(r"$$", "..".replaceAll(wrap("."), r"$"));
-  Expect.equals(r"[$$$$]", "[..]".replaceAll(wrap("."), r"$$"));
-  Expect.equals(r"[$]", "[..]".replaceAll(wrap(".."), r"$"));
-  Expect.equals(r"$$", r"\\".replaceAll(wrap(r"\"), r"$"));
-}
-
-testReplaceAllMapped(Pattern Function(Pattern) wrap) {
-  String mark(Match m) => "[${m[0]}]";
-  Expect.equals("a[b]ca[b]dae", "abcabdae".replaceAllMapped(wrap("b"), mark));
-
-  // Test with the replaced string at the beginning.
-  Expect.equals("[a]bc[a]bd[a]e", "abcabdae".replaceAllMapped(wrap("a"), mark));
-
-  // Test with the replaced string at the end.
-  Expect.equals("abcabda[e]", "abcabdae".replaceAllMapped(wrap("e"), mark));
-
-  // Test when there are no occurrence of the string to replace.
-  Expect.equals("abcabdae", "abcabdae".replaceAllMapped(wrap("f"), mark));
-
-  // Test when the string to change is the empty string.
-  Expect.equals("", "".replaceAllMapped(wrap("from"), mark));
-
-  // Test when the string to change is a substring of the string to
-  // replace.
-  Expect.equals("fro", "fro".replaceAllMapped(wrap("from"), mark));
-
-  // Test when matches are adjacent
-  Expect.equals(
-      "[from][from]", "fromfrom".replaceAllMapped(wrap("from"), mark));
-
-  // Test replacing by the empty string.
-  Expect.equals("bcbde", "abcabdae".replaceAllMapped(wrap("a"), (m) => ""));
-  Expect.equals("AB", "AfromB".replaceAllMapped(wrap("from"), (m) => ""));
-
-  // Test changing the empty string.
-  Expect.equals("[]", "".replaceAllMapped(wrap(""), mark));
-
-  // Test replacing the empty string.
-  Expect.equals("[]A[]B[]C[]", "ABC".replaceAllMapped(wrap(""), mark));
-}
-
-testSplitMapJoin(Pattern Function(Pattern) wrap) {
-  String mark(Match m) => "[${m[0]}]";
-  String rest(String s) => "<${s}>";
-
-  Expect.equals("<a>[b]<ca>[b]<dae>",
-      "abcabdae".splitMapJoin(wrap("b"), onMatch: mark, onNonMatch: rest));
-
-  // Test with the replaced string at the beginning.
-  Expect.equals("<>[a]<bc>[a]<bd>[a]<e>",
-      "abcabdae".splitMapJoin(wrap("a"), onMatch: mark, onNonMatch: rest));
-
-  // Test with the replaced string at the end.
-  Expect.equals("<abcabda>[e]<>",
-      "abcabdae".splitMapJoin(wrap("e"), onMatch: mark, onNonMatch: rest));
-
-  // Test when there are no occurrence of the string to replace.
-  Expect.equals("<abcabdae>",
-      "abcabdae".splitMapJoin(wrap("f"), onMatch: mark, onNonMatch: rest));
-
-  // Test when the string to change is the empty string.
-  Expect.equals(
-      "<>", "".splitMapJoin(wrap("from"), onMatch: mark, onNonMatch: rest));
-
-  // Test when the string to change is a substring of the string to
-  // replace.
-  Expect.equals("<fro>",
-      "fro".splitMapJoin(wrap("from"), onMatch: mark, onNonMatch: rest));
-
-  // Test when matches are adjacent
-  Expect.equals("<>[from]<>[from]<>",
-      "fromfrom".splitMapJoin(wrap("from"), onMatch: mark, onNonMatch: rest));
-
-  // Test changing the empty string.
-  Expect.equals(
-      "<>[]<>", "".splitMapJoin(wrap(""), onMatch: mark, onNonMatch: rest));
-
-  // Test replacing the empty string.
-  Expect.equals("<>[]<A>[]<B>[]<C>[]<>",
-      "ABC".splitMapJoin(wrap(""), onMatch: mark, onNonMatch: rest));
-
-  // Test with only onMatch.
-  Expect.equals(
-      "[a]bc[a]bd[a]e", "abcabdae".splitMapJoin(wrap("a"), onMatch: mark));
-
-  // Test with only onNonMatch
-  Expect.equals(
-      "<>a<bc>a<bd>a<e>", "abcabdae".splitMapJoin(wrap("a"), onNonMatch: rest));
-}
diff --git a/tests/corelib_2/string_replace_all_pattern_test.dart b/tests/corelib_2/string_replace_all_pattern_test.dart
deleted file mode 100644
index 10827c9a02b..00000000000
--- a/tests/corelib_2/string_replace_all_pattern_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "string_replace_all_common.dart";
-
-main() {
-  testAll(Wrapper.wrap);
-}
-
-/// A wrapper that is not recognizable as a String or RegExp.
-class Wrapper implements Pattern {
-  final Pattern _pattern;
-  Wrapper(this._pattern);
-
-  static Pattern wrap(Pattern p) => Wrapper(p);
-
-  Iterable<Match> allMatches(String string, [int start = 0]) =>
-      _pattern.allMatches(string, start);
-
-  Match matchAsPrefix(String string, [int start = 0]) =>
-      _pattern.matchAsPrefix(string, start);
-
-  String toString() => "Wrap($_pattern)";
-}
diff --git a/tests/corelib_2/string_replace_all_test.dart b/tests/corelib_2/string_replace_all_test.dart
deleted file mode 100644
index 9d43fb7eefd..00000000000
--- a/tests/corelib_2/string_replace_all_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "string_replace_all_common.dart";
-
-main() {
-  testAll((pattern) => pattern); // unwrapped
-}
diff --git a/tests/corelib_2/string_replace_dollar_test.dart b/tests/corelib_2/string_replace_dollar_test.dart
deleted file mode 100644
index 7ab46916a97..00000000000
--- a/tests/corelib_2/string_replace_dollar_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  String jsText = r"""'$'
-""";
-  String htmlStr = '%%DART';
-  String htmlOut = htmlStr.replaceAll("%%DART", jsText);
-  Expect.equals(jsText, htmlOut);
-  htmlOut = htmlStr.replaceFirst("%%DART", jsText);
-  Expect.equals(jsText, htmlOut);
-  htmlOut = htmlStr.replaceAll(new RegExp("%%DART"), jsText);
-  Expect.equals(jsText, htmlOut);
-  htmlOut = htmlStr.replaceFirst(new RegExp("%%DART"), jsText);
-  Expect.equals(jsText, htmlOut);
-
-  // Regression test, http://dartbug.com/17886
-  String doubleDollar = r"$'$`";
-  var string = r"flip-flip-flop";
-  var result = string.replaceFirst("flip", doubleDollar);
-  Expect.equals(r"$'$`-flip-flop", result);
-  result = string.replaceAll("flip", doubleDollar);
-  Expect.equals(r"$'$`-$'$`-flop", result);
-}
diff --git a/tests/corelib_2/string_replace_static_test.dart b/tests/corelib_2/string_replace_static_test.dart
deleted file mode 100644
index 28c91d1bdf4..00000000000
--- a/tests/corelib_2/string_replace_static_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  // Test object startIndex
-  "hello".replaceFirst("h", "X", new Object());
-  //                             ^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_CAST_NEW_EXPR
-  //                                 ^
-  // [cfe] The constructor returns type 'Object' that isn't of expected type 'int'.
-
-  // Test object startIndex
-  "hello".replaceFirstMapped("h", (_) => "X", new Object());
-  //                                          ^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_CAST_NEW_EXPR
-  //                                              ^
-  // [cfe] The constructor returns type 'Object' that isn't of expected type 'int'.
-
-  "foo-bar".replaceFirstMapped("bar", (v) {
-    return 42;
-    //     ^^
-    // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE_FROM_CLOSURE
-    // [cfe] A value of type 'int' can't be assigned to a variable of type 'String'.
-  });
-
-  "hello".replaceRange(0, 0, 42);
-  //                         ^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] The argument type 'int' can't be assigned to the parameter type 'String'.
-  "hello".replaceRange(0, 0, ["x"]);
-  //                         ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] The argument type 'List<String>' can't be assigned to the parameter type 'String'.
-}
-
-// Fails to return a String on toString, throws if converted by "$naughty".
-class Naughty {
-  toString() => this;
-  //            ^^^^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] A value of type 'Naughty' can't be assigned to a variable of type 'String'.
-}
diff --git a/tests/corelib_2/string_replace_test.dart b/tests/corelib_2/string_replace_test.dart
deleted file mode 100644
index 4a7bad94bcd..00000000000
--- a/tests/corelib_2/string_replace_test.dart
+++ /dev/null
@@ -1,201 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  // Test replaceFirst.
-  Expect.equals("AtoBtoCDtoE", "AfromBtoCDtoE".replaceFirst("from", "to"));
-
-  // Test with the replaced string at the beginning.
-  Expect.equals("toABtoCDtoE", "fromABtoCDtoE".replaceFirst("from", "to"));
-
-  // Test with the replaced string at the end.
-  Expect.equals("toABtoCDtoEto", "fromABtoCDtoEto".replaceFirst("from", "to"));
-
-  // Test when there are no occurrence of the string to replace.
-  Expect.equals("ABC", "ABC".replaceFirst("from", "to"));
-
-  // Test when the string to change is the empty string.
-  Expect.equals("", "".replaceFirst("from", "to"));
-
-  // Test when the string to change is a substring of the string to
-  // replace.
-  Expect.equals("fro", "fro".replaceFirst("from", "to"));
-
-  // Test when the string to change is the replaced string.
-  Expect.equals("to", "from".replaceFirst("from", "to"));
-
-  // Test when the string to change is the replacement string.
-  Expect.equals("to", "to".replaceFirst("from", "to"));
-
-  // Test replacing by the empty string.
-  Expect.equals("", "from".replaceFirst("from", ""));
-  Expect.equals("AB", "AfromB".replaceFirst("from", ""));
-
-  // Test changing the empty string.
-  Expect.equals("to", "".replaceFirst("", "to"));
-
-  // Test replacing the empty string.
-  Expect.equals("toAtoBtoCto", "AtoBtoCto".replaceFirst("", "to"));
-
-  // Test startIndex.
-  Expect.equals(
-      "foo-AAA-foo-bar", "foo-bar-foo-bar".replaceFirst("bar", "AAA", 4));
-
-  // Test startIndex skipping one case at the beginning.
-  Expect.equals(
-      "foo-bar-AAA-bar", "foo-bar-foo-bar".replaceFirst("foo", "AAA", 1));
-
-  // Test startIndex skipping one case at the beginning.
-  Expect.equals(
-      "foo-bar-foo-AAA", "foo-bar-foo-bar".replaceFirst("bar", "AAA", 5));
-
-  // Test startIndex replacing with the empty string.
-  Expect.equals("foo-bar--bar", "foo-bar-foo-bar".replaceFirst("foo", "", 1));
-
-  // Test startIndex with a RegExp with carat
-  Expect.equals("foo-bar-foo-bar",
-      "foo-bar-foo-bar".replaceFirst(new RegExp(r"^foo"), "", 8));
-
-  // Test startIndex with a RegExp
-  Expect.equals(
-      "aaa{3}X{3}", "aaa{3}aaa{3}".replaceFirst(new RegExp(r"a{3}"), "X", 1));
-
-  // Test startIndex with regexp-looking String
-  Expect.equals("aaa{3}aaX", "aaa{3}aaa{3}".replaceFirst("a{3}", "X", 3));
-
-  // Test negative startIndex
-  Expect.throwsRangeError(() => "hello".replaceFirst("h", "X", -1));
-
-  // Test startIndex too large
-  Expect.throwsRangeError(() => "hello".replaceFirst("h", "X", 6));
-
-  // Test null startIndex
-  Expect.throwsArgumentError(() => "hello".replaceFirst("h", "X", null));
-
-  // Test replaceFirstMapped.
-  Expect.equals(
-      "AtoBtoCDtoE", "AfromBtoCDtoE".replaceFirstMapped("from", (_) => "to"));
-
-  // Test with the replaced string at the beginning.
-  Expect.equals(
-      "toABtoCDtoE", "fromABtoCDtoE".replaceFirstMapped("from", (_) => "to"));
-
-  // Test with the replaced string at the end.
-  Expect.equals("toABtoCDtoEto",
-      "fromABtoCDtoEto".replaceFirstMapped("from", (_) => "to"));
-
-  // Test when there are no occurrence of the string to replace.
-  Expect.equals("ABC", "ABC".replaceFirstMapped("from", (_) => "to"));
-
-  // Test when the string to change is the empty string.
-  Expect.equals("", "".replaceFirstMapped("from", (_) => "to"));
-
-  // Test when the string to change is a substring of the string to
-  // replace.
-  Expect.equals("fro", "fro".replaceFirstMapped("from", (_) => "to"));
-
-  // Test when the string to change is the replaced string.
-  Expect.equals("to", "from".replaceFirstMapped("from", (_) => "to"));
-
-  // Test when the string to change is the replacement string.
-  Expect.equals("to", "to".replaceFirstMapped("from", (_) => "to"));
-
-  // Test replacing by the empty string.
-  Expect.equals("", "from".replaceFirstMapped("from", (_) => ""));
-  Expect.equals("AB", "AfromB".replaceFirstMapped("from", (_) => ""));
-
-  // Test changing the empty string.
-  Expect.equals("to", "".replaceFirstMapped("", (_) => "to"));
-
-  // Test replacing the empty string.
-  Expect.equals("toAtoBtoCto", "AtoBtoCto".replaceFirstMapped("", (_) => "to"));
-
-  // Test startIndex.
-  Expect.equals("foo-AAA-foo-bar",
-      "foo-bar-foo-bar".replaceFirstMapped("bar", (_) => "AAA", 4));
-
-  // Test startIndex skipping one case at the beginning.
-  Expect.equals("foo-bar-AAA-bar",
-      "foo-bar-foo-bar".replaceFirstMapped("foo", (_) => "AAA", 1));
-
-  // Test startIndex skipping one case at the beginning.
-  Expect.equals("foo-bar-foo-AAA",
-      "foo-bar-foo-bar".replaceFirstMapped("bar", (_) => "AAA", 5));
-
-  // Test startIndex replacing with the empty string.
-  Expect.equals("foo-bar--bar",
-      "foo-bar-foo-bar".replaceFirstMapped("foo", (_) => "", 1));
-
-  // Test startIndex with a RegExp with carat
-  Expect.equals("foo-bar-foo-bar",
-      "foo-bar-foo-bar".replaceFirstMapped(new RegExp(r"^foo"), (_) => "", 8));
-
-  // Test startIndex with a RegExp
-  Expect.equals("aaa{3}X{3}",
-      "aaa{3}aaa{3}".replaceFirstMapped(new RegExp(r"a{3}"), (_) => "X", 1));
-
-  // Test startIndex with regexp-looking String
-  Expect.equals(
-      "aaa{3}aaX", "aaa{3}aaa{3}".replaceFirstMapped("a{3}", (_) => "X", 3));
-
-  // Test negative startIndex
-  Expect.throwsRangeError(
-      () => "hello".replaceFirstMapped("h", (_) => "X", -1));
-
-  // Test startIndex too large
-  Expect.throwsRangeError(() => "hello".replaceFirstMapped("h", (_) => "X", 6));
-
-  // Test null startIndex
-  Expect.throwsArgumentError(
-      () => "hello".replaceFirstMapped("h", (_) => "X", null));
-
-  // Test replacement depending on argument.
-  Expect.equals("foo-BAR-foo-bar",
-      "foo-bar-foo-bar".replaceFirstMapped("bar", (v) => v[0].toUpperCase()));
-
-  Expect.equals("foo-[bar]-foo-bar",
-      "foo-bar-foo-bar".replaceFirstMapped("bar", (v) => "[${v[0]}]"));
-
-  Expect.equals("foo-foo-bar-foo-bar-foo-bar",
-      "foo-bar-foo-bar".replaceFirstMapped("bar", (v) => v.input));
-
-  // Test replacement throwing.
-  Expect.throws(() => "foo-bar".replaceFirstMapped("bar", (v) => throw 42),
-      (e) => e == 42);
-
-  // Test replacement returning non-String.
-  var o = new Object();
-  Expect.equals(
-      "foo-$o",
-      "foo-bar".replaceFirstMapped("bar", (v) {
-        // TODO(jmesserly): in strong mode, this function must return a string.
-        // If we want to allow any Object, we'll have to fix the API signature.
-        // See https://github.com/dart-lang/sdk/issues/30248.
-        return '$o';
-      }));
-
-  for (var string in ["", "x", "foo", "x\u2000z"]) {
-    for (var replacement in ["", "foo", string]) {
-      for (int start = 0; start <= string.length; start++) {
-        var expect;
-        for (int end = start; end <= string.length; end++) {
-          expect =
-              string.substring(0, start) + replacement + string.substring(end);
-          Expect.equals(expect, string.replaceRange(start, end, replacement),
-              '"$string"[$start:$end]="$replacement"');
-        }
-        // Reuse expect from "end == string.length" case when omitting end.
-        Expect.equals(expect, string.replaceRange(start, null, replacement),
-            '"$string"[$start:]="$replacement"');
-      }
-    }
-    Expect.throws(() => string.replaceRange(0, 0, null));
-    Expect.throws(() => string.replaceRange(-1, 0, "x"));
-    Expect.throws(() => string.replaceRange(0, string.length + 1, "x"));
-  }
-}
diff --git a/tests/corelib_2/string_runes_test.dart b/tests/corelib_2/string_runes_test.dart
deleted file mode 100644
index d8972843904..00000000000
--- a/tests/corelib_2/string_runes_test.dart
+++ /dev/null
@@ -1,86 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  test(String s, List<int> expectedRunes) {
-    Runes runes = s.runes;
-    Expect.identical(s, runes.string);
-
-    // for-in
-    var res = [];
-    for (int rune in runes) {
-      res.add(rune);
-    }
-    Expect.listEquals(expectedRunes, res);
-
-    // manual iteration, backwards.
-    res = [];
-    for (var it = runes.iterator..reset(s.length); it.movePrevious();) {
-      res.add(it.current);
-    }
-    Expect.listEquals(expectedRunes.reversed.toList(), res);
-
-    // Setting rawIndex.
-    RuneIterator it = runes.iterator;
-    it.rawIndex = 1;
-    Expect.equals(expectedRunes[1], it.current);
-
-    it = runes.iterator;
-    it.moveNext();
-    Expect.equals(0, it.rawIndex);
-    it.moveNext();
-    Expect.equals(1, it.rawIndex);
-    it.moveNext();
-    Expect.isTrue(1 < it.rawIndex);
-    it.rawIndex = 1;
-    Expect.equals(1, it.rawIndex);
-    Expect.equals(expectedRunes[1], it.current);
-
-    // Reset, moveNext.
-    it.reset(1);
-    Expect.equals(-1, it.rawIndex);
-    Expect.equals(-1, it.current);
-    it.moveNext();
-    Expect.equals(1, it.rawIndex);
-    Expect.equals(expectedRunes[1], it.current);
-
-    // Reset, movePrevious.
-    it.reset(1);
-    Expect.equals(-1, it.rawIndex);
-    Expect.equals(-1, it.current);
-    it.movePrevious();
-    Expect.equals(0, it.rawIndex);
-    Expect.equals(expectedRunes[0], it.current);
-
-    // .map
-    Expect.listEquals(expectedRunes.map((x) => x.toRadixString(16)).toList(),
-        runes.map((x) => x.toRadixString(16)).toList());
-  }
-
-  // First character must be single-code-unit for test.
-  test("abc", [0x61, 0x62, 0x63]);
-  test("\x00\u0000\u{000000}", [0, 0, 0]);
-  test("\u{ffff}\u{10000}\u{10ffff}", [0xffff, 0x10000, 0x10ffff]);
-  String string = new String.fromCharCodes(
-      [0xdc00, 0xd800, 61, 0xd800, 0xdc00, 62, 0xdc00, 0xd800]);
-  test(string, [0xdc00, 0xd800, 61, 0x10000, 62, 0xdc00, 0xd800]);
-
-  // Setting position in the middle of a surrogate pair is not allowed.
-  var r = new Runes("\u{10000}");
-  var it = r.iterator;
-  it.moveNext();
-  Expect.equals(0x10000, it.current);
-
-  // Setting rawIndex inside surrogate pair.
-  Expect.throws(() {
-    it.rawIndex = 1;
-  }, (e) => e is Error);
-  Expect.throws(() {
-    it.reset(1);
-  }, (e) => e is Error);
-}
diff --git a/tests/corelib_2/string_source_test.dart b/tests/corelib_2/string_source_test.dart
deleted file mode 100644
index 2f752de1070..00000000000
--- a/tests/corelib_2/string_source_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that different representations of the same string are all equal.
-
-import "dart:convert";
-
-import "package:expect/expect.dart";
-
-main() {
-  var base = "\u{10412}";
-  var strings = [
-    "\u{10412}",
-    "𐐒",
-    new String.fromCharCodes([0xd801, 0xdc12]),
-    base[0] + base[1],
-    "$base",
-    "${base[0]}${base[1]}",
-    "${base[0]}${base.substring(1)}",
-    new String.fromCharCodes([0x10412]),
-    ("a" + base).substring(1),
-    (new StringBuffer()..writeCharCode(0xd801)..writeCharCode(0xdc12))
-        .toString(),
-    (new StringBuffer()..writeCharCode(0x10412)).toString(),
-    json.decode('"\u{10412}"'),
-    (json.decode('{"\u{10412}":[]}') as Map).keys.first
-  ];
-  for (String string in strings) {
-    Expect.equals(base.length, string.length);
-    Expect.equals(base, string);
-    Expect.equals(base.hashCode, string.hashCode);
-    Expect.listEquals(base.codeUnits.toList(), string.codeUnits.toList());
-  }
-}
diff --git a/tests/corelib_2/string_split_test.dart b/tests/corelib_2/string_split_test.dart
deleted file mode 100644
index e1884fec0cb..00000000000
--- a/tests/corelib_2/string_split_test.dart
+++ /dev/null
@@ -1,146 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  testSplitString();
-  testSplitRegExp();
-  testSplitPattern();
-}
-
-testSplit(List<String> expect, String string, Pattern pattern) {
-  String patternString;
-  if (pattern is String) {
-    patternString = '"$pattern"';
-  } else if (pattern is RegExp) {
-    patternString = "/${pattern.pattern}/";
-  } else {
-    patternString = pattern.toString();
-  }
-  List actual = string.split(pattern);
-
-  // Ensure that the correct type is reified.
-  actual = actual as List<String>;
-
-  // Check that store of the wrong type throws. Some platforms don't do this,
-  // so it's protected by multitest syntax.
-  Expect.throwsTypeError(() => actual.add(42), //      //# checkedstore: ok
-      'List<String>.add should not accept an int'); // //# checkedstore: ok
-
-  Expect.listEquals(expect, actual, '"$string".split($patternString)');
-}
-
-/** String patterns. */
-void testSplitString() {
-  // Normal match.
-  testSplit(["a", "b", "c"], "a b c", " ");
-  testSplit(["a", "b", "c"], "adbdc", "d");
-  testSplit(["a", "b", "c"], "addbddc", "dd");
-  // No match.
-  testSplit(["abc"], "abc", " ");
-  testSplit(["a"], "a", "b");
-  testSplit([""], "", "b");
-  // Empty match matches everywhere except start/end.
-  testSplit(["a", "b", "c"], "abc", "");
-  // All empty parts.
-  testSplit(["", "", "", "", ""], "aaaa", "a");
-  testSplit(["", "", "", "", ""], "    ", " ");
-  testSplit(["", ""], "a", "a");
-  // No overlapping matches. Match as early as possible.
-  testSplit(["", "", "", "a"], "aaaaaaa", "aa");
-  // Cannot split the empty string.
-  testSplit([], "", ""); // Match.
-  testSplit([""], "", "a"); // No match.
-}
-
-/** RegExp patterns. */
-void testSplitRegExp() {
-  testSplitWithRegExp((s) => new RegExp(s));
-}
-
-/** Non-String, non-RegExp patterns. */
-void testSplitPattern() {
-  testSplitWithRegExp((s) => new RegExpWrap(s));
-}
-
-void testSplitWithRegExp(makePattern) {
-  testSplit(["a", "b", "c"], "a b c", makePattern(r" "));
-
-  testSplit(["a", "b", "c"], "adbdc", makePattern(r"[dz]"));
-
-  testSplit(["a", "b", "c"], "addbddc", makePattern(r"dd"));
-
-  testSplit(["abc"], "abc", makePattern(r"b$"));
-
-  testSplit(["a", "b", "c"], "abc", makePattern(r""));
-
-  testSplit(["", "", "", ""], "   ", makePattern(r"[ ]"));
-
-  // Non-zero-length match at end.
-  testSplit(["aa", ""], "aaa", makePattern(r"a$"));
-
-  // Zero-length match at end.
-  testSplit(["aaa"], "aaa", makePattern(r"$"));
-
-  // Non-zero-length match at start.
-  testSplit(["", "aa"], "aaa", makePattern(r"^a"));
-
-  // Zero-length match at start.
-  testSplit(["aaa"], "aaa", makePattern(r"^"));
-
-  // Picks first match, not longest or shortest.
-  testSplit(["", "", "", "a"], "aaaaaaa", makePattern(r"aa|aaa"));
-
-  testSplit(["", "", "", "a"], "aaaaaaa", makePattern(r"aa|"));
-
-  testSplit(["", "", "a"], "aaaaaaa", makePattern(r"aaa|aa"));
-
-  // Zero-width match depending on the following.
-  testSplit(["a", "bc"], "abc", makePattern(r"(?=[ab])"));
-
-  testSplit(["a", "b", "c"], "abc", makePattern(r"(?!^)"));
-
-  // Cannot split empty string.
-  testSplit([], "", makePattern(r""));
-
-  testSplit([], "", makePattern(r"(?:)"));
-
-  testSplit([], "", makePattern(r"$|(?=.)"));
-
-  testSplit([""], "", makePattern(r"a"));
-
-  // Can split singleton string if it matches.
-  testSplit(["", ""], "a", makePattern(r"a"));
-
-  testSplit(["a"], "a", makePattern(r"b"));
-
-  // Do not include captures.
-  testSplit(["a", "", "a"], "abba", makePattern(r"(b)"));
-
-  testSplit(["a", "a"], "abba", makePattern(r"(bb)"));
-
-  testSplit(["a", "a"], "abba", makePattern(r"(b*)"));
-
-  testSplit(["a", "a"], "aa", makePattern(r"(b*)"));
-
-  // But captures are still there, and do work with backreferences.
-  testSplit(["a", "cba"], "abcba", makePattern(r"([bc])(?=.*\1)"));
-}
-
-// A Pattern implementation with the same capabilities as a RegExp, but not
-// directly recognizable as a RegExp.
-class RegExpWrap implements Pattern {
-  final regexp;
-  RegExpWrap(String source) : regexp = new RegExp(source);
-  Iterable<Match> allMatches(String string, [int start = 0]) =>
-      regexp.allMatches(string, start);
-
-  Match matchAsPrefix(String string, [int start = 0]) =>
-      regexp.matchAsPrefix(string, start);
-
-  String toString() => "Wrap(/${regexp.pattern}/)";
-}
diff --git a/tests/corelib_2/string_static_test.dart b/tests/corelib_2/string_static_test.dart
deleted file mode 100644
index e086b53f6d3..00000000000
--- a/tests/corelib_2/string_static_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  testIllegalArgument();
-}
-
-void testIllegalArgument() {
-  String a = "Hello";
-  var c = a[2.2];
-  //        ^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] A value of type 'double' can't be assigned to a variable of type 'int'.
-}
diff --git a/tests/corelib_2/string_substring_test.dart b/tests/corelib_2/string_substring_test.dart
deleted file mode 100644
index c9a452a21a9..00000000000
--- a/tests/corelib_2/string_substring_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  // Test that not providing an optional argument goes to the end.
-  Expect.equals("".substring(0), "");
-  Expect.throwsRangeError(() => "".substring(1));
-  Expect.throwsRangeError(() => "".substring(-1));
-
-  Expect.equals("abc".substring(0), "abc");
-  Expect.equals("abc".substring(1), "bc");
-  Expect.equals("abc".substring(2), "c");
-  Expect.equals("abc".substring(3), "");
-  Expect.throwsRangeError(() => "abc".substring(4));
-  Expect.throwsRangeError(() => "abc".substring(-1));
-
-  // Test that providing null goes to the end.
-  Expect.equals("".substring(0, null), "");
-  Expect.throwsRangeError(() => "".substring(1, null));
-  Expect.throwsRangeError(() => "".substring(-1, null));
-
-  Expect.equals("abc".substring(0, null), "abc");
-  Expect.equals("abc".substring(1, null), "bc");
-  Expect.equals("abc".substring(2, null), "c");
-  Expect.equals("abc".substring(3, null), "");
-  Expect.throwsRangeError(() => "abc".substring(4, null));
-  Expect.throwsRangeError(() => "abc".substring(-1, null));
-}
diff --git a/tests/corelib_2/string_test.dart b/tests/corelib_2/string_test.dart
deleted file mode 100644
index d7789e67c12..00000000000
--- a/tests/corelib_2/string_test.dart
+++ /dev/null
@@ -1,480 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  testOutOfRange();
-  testConcat();
-  testIndex();
-  testCodeUnitAt();
-  testEquals();
-  testEndsWith();
-  testStartsWith();
-  testIndexOf();
-  testLastIndexOf();
-  testContains();
-  testReplaceAll();
-  testCompareTo();
-  testCharCodes();
-  testRepeat();
-  testPadLeft();
-  testPadRight();
-}
-
-void testLength() {
-  String str = "";
-  for (var i = 0; i < 20; i++) {
-    testStringLength(i, str);
-    str += " ";
-  }
-}
-
-void testOutOfRange() {
-  String a = "Hello";
-  bool exception_caught = false;
-  try {
-    var c = a[20]; // Throw exception.
-  } on RangeError catch (e) {
-    exception_caught = true;
-  }
-  Expect.isTrue(exception_caught);
-}
-
-void testIndex() {
-  String str = "string";
-  for (int i = 0; i < str.length; i++) {
-    Expect.isTrue(str[i] is String);
-    testStringLength(1, str[i]);
-  }
-}
-
-void testCodeUnitAt() {
-  String str = "string";
-  for (int i = 0; i < str.length; i++) {
-    Expect.isTrue(str.codeUnitAt(i) is int);
-  }
-}
-
-void testConcat() {
-  var a = "One";
-  var b = "Four";
-  var c = a + b;
-  testStringLength(7, c);
-  Expect.equals("OneFour", c);
-}
-
-void testEquals() {
-  Expect.equals("str", "str");
-
-  Expect.equals("str", "s" + "t" + "r");
-  Expect.equals("s" + "t" + "r", "str");
-
-  Expect.isFalse("str" == "s");
-  Expect.isFalse("str" == "r");
-  Expect.isFalse("str" == "st");
-  Expect.isFalse("str" == "tr");
-
-  Expect.isFalse("s" == "str");
-  Expect.isFalse("r" == "str");
-  Expect.isFalse("st" == "str");
-  Expect.isFalse("tr" == "str");
-
-  Expect.isFalse("" == "s");
-  Expect.equals("", "");
-}
-
-void testEndsWith() {
-  Expect.isTrue("str".endsWith("r"));
-  Expect.isTrue("str".endsWith("tr"));
-  Expect.isTrue("str".endsWith("str"));
-
-  Expect.isFalse("str".endsWith("stri"));
-  Expect.isFalse("str".endsWith("t"));
-  Expect.isFalse("str".endsWith("st"));
-  Expect.isFalse("str".endsWith("s"));
-
-  Expect.isTrue("".endsWith(""));
-  Expect.isFalse("".endsWith("s"));
-}
-
-void testStartsWith() {
-  Expect.isTrue("str".startsWith("s"));
-  Expect.isTrue("str".startsWith("st"));
-  Expect.isTrue("str".startsWith("str"));
-
-  Expect.isFalse("str".startsWith("stri"));
-  Expect.isFalse("str".startsWith("r"));
-  Expect.isFalse("str".startsWith("tr"));
-  Expect.isFalse("str".startsWith("t"));
-
-  Expect.isTrue("".startsWith(""));
-  Expect.isFalse("".startsWith("s"));
-
-  Expect.isFalse("strstr".startsWith("s", 1));
-  Expect.isFalse("strstr".startsWith("s", 2));
-  Expect.isTrue("strstr".startsWith("s", 3));
-  Expect.isFalse("strstr".startsWith("s", 4));
-
-  Expect.isFalse("strstr".startsWith("st", 1));
-  Expect.isFalse("strstr".startsWith("st", 2));
-  Expect.isTrue("strstr".startsWith("st", 3));
-  Expect.isFalse("strstr".startsWith("st", 4));
-
-  Expect.isFalse("strstr".startsWith("str", 1));
-  Expect.isFalse("strstr".startsWith("str", 2));
-  Expect.isTrue("strstr".startsWith("str", 3));
-  Expect.isFalse("strstr".startsWith("str", 4));
-
-  Expect.isTrue("str".startsWith("", 0));
-  Expect.isTrue("str".startsWith("", 1));
-  Expect.isTrue("str".startsWith("", 2));
-  Expect.isTrue("str".startsWith("", 3));
-
-  Expect.throws(() => "str".startsWith("", -1));
-  Expect.throws(() => "str".startsWith("", 4));
-
-  var regexp = new RegExp("s(?:tr?)?");
-  Expect.isTrue("s".startsWith(regexp));
-  Expect.isTrue("st".startsWith(regexp));
-  Expect.isTrue("str".startsWith(regexp));
-  Expect.isTrue("sX".startsWith(regexp));
-  Expect.isTrue("stX".startsWith(regexp));
-  Expect.isTrue("strX".startsWith(regexp));
-
-  Expect.isFalse("".startsWith(regexp));
-  Expect.isFalse("astr".startsWith(regexp));
-
-  Expect.isTrue("".startsWith(new RegExp("")));
-  Expect.isTrue("".startsWith(new RegExp("a?")));
-
-  Expect.isFalse("strstr".startsWith(regexp, 1));
-  Expect.isFalse("strstr".startsWith(regexp, 2));
-  Expect.isTrue("strstr".startsWith(regexp, 3));
-  Expect.isFalse("strstr".startsWith(regexp, 4));
-
-  Expect.isTrue("str".startsWith(new RegExp(""), 0));
-  Expect.isTrue("str".startsWith(new RegExp(""), 1));
-  Expect.isTrue("str".startsWith(new RegExp(""), 2));
-  Expect.isTrue("str".startsWith(new RegExp(""), 3));
-  Expect.isTrue("str".startsWith(new RegExp("a?"), 0));
-  Expect.isTrue("str".startsWith(new RegExp("a?"), 1));
-  Expect.isTrue("str".startsWith(new RegExp("a?"), 2));
-  Expect.isTrue("str".startsWith(new RegExp("a?"), 3));
-
-  Expect.throws(() => "str".startsWith(regexp, -1));
-  Expect.throws(() => "str".startsWith(regexp, 4));
-
-  regexp = new RegExp("^str");
-  Expect.isTrue("strstr".startsWith(regexp));
-  Expect.isTrue("strstr".startsWith(regexp, 0));
-  Expect.isFalse("strstr".startsWith(regexp, 1));
-  Expect.isFalse("strstr".startsWith(regexp, 2));
-  Expect.isFalse("strstr".startsWith(regexp, 3)); // Second "str" isn't at ^.
-}
-
-void testIndexOf() {
-  Expect.equals(0, "str".indexOf("", 0));
-  Expect.equals(0, "".indexOf("", 0));
-  Expect.equals(-1, "".indexOf("a", 0));
-
-  Expect.equals(1, "str".indexOf("t", 0));
-  Expect.equals(1, "str".indexOf("tr", 0));
-  Expect.equals(0, "str".indexOf("str", 0));
-  Expect.equals(0, "str".indexOf("st", 0));
-  Expect.equals(0, "str".indexOf("s", 0));
-  Expect.equals(2, "str".indexOf("r", 0));
-  Expect.equals(-1, "str".indexOf("string", 0));
-
-  Expect.equals(1, "strstr".indexOf("t", 0));
-  Expect.equals(1, "strstr".indexOf("tr", 0));
-  Expect.equals(0, "strstr".indexOf("str", 0));
-  Expect.equals(0, "strstr".indexOf("st", 0));
-  Expect.equals(0, "strstr".indexOf("s", 0));
-  Expect.equals(2, "strstr".indexOf("r", 0));
-  Expect.equals(-1, "str".indexOf("string", 0));
-
-  Expect.equals(4, "strstr".indexOf("t", 2));
-  Expect.equals(4, "strstr".indexOf("tr", 2));
-  Expect.equals(3, "strstr".indexOf("str", 1));
-  Expect.equals(3, "strstr".indexOf("str", 2));
-  Expect.equals(3, "strstr".indexOf("str", 3));
-  Expect.equals(3, "strstr".indexOf("st", 1));
-  Expect.equals(3, "strstr".indexOf("s", 3));
-  Expect.equals(5, "strstr".indexOf("r", 3));
-  Expect.equals(5, "strstr".indexOf("r", 4));
-  Expect.equals(5, "strstr".indexOf("r", 5));
-
-  String str = "hello";
-  for (int i = 0; i < 10; i++) {
-    if (i > str.length) {
-      Expect.throws(() => str.indexOf("", i));
-    } else {
-      int result = str.indexOf("", i);
-      Expect.equals(i, result);
-    }
-  }
-
-  var re = new RegExp("an?");
-  Expect.equals(1, "banana".indexOf(re));
-  Expect.equals(1, "banana".indexOf(re, 0));
-  Expect.equals(1, "banana".indexOf(re, 1));
-  Expect.equals(3, "banana".indexOf(re, 2));
-  Expect.equals(3, "banana".indexOf(re, 3));
-  Expect.equals(5, "banana".indexOf(re, 4));
-  Expect.equals(5, "banana".indexOf(re, 5));
-  Expect.equals(-1, "banana".indexOf(re, 6));
-  Expect.throws(() => "banana".indexOf(re, -1));
-  Expect.throws(() => "banana".indexOf(re, 7));
-  re = new RegExp("x?");
-  for (int i = 0; i <= str.length; i++) {
-    Expect.equals(i, str.indexOf(re, i));
-  }
-}
-
-void testLastIndexOf() {
-  Expect.equals(2, "str".lastIndexOf("", 2));
-  Expect.equals(0, "".lastIndexOf("", 0));
-  Expect.equals(-1, "".lastIndexOf("a", 0));
-
-  Expect.equals(1, "str".lastIndexOf("t", 2));
-  Expect.equals(1, "str".lastIndexOf("tr", 2));
-  Expect.equals(0, "str".lastIndexOf("str", 2));
-  Expect.equals(0, "str".lastIndexOf("st", 2));
-  Expect.equals(0, "str".lastIndexOf("s", 2));
-  Expect.equals(2, "str".lastIndexOf("r", 2));
-  Expect.equals(-1, "str".lastIndexOf("string", 2));
-
-  Expect.equals(4, "strstr".lastIndexOf("t", 5));
-  Expect.equals(4, "strstr".lastIndexOf("tr", 5));
-  Expect.equals(3, "strstr".lastIndexOf("str", 5));
-  Expect.equals(3, "strstr".lastIndexOf("st", 5));
-  Expect.equals(3, "strstr".lastIndexOf("s", 5));
-  Expect.equals(5, "strstr".lastIndexOf("r", 5));
-  Expect.throws(() {
-    "str".lastIndexOf("string", 5);
-  });
-  Expect.equals(4, "strstr".lastIndexOf("t", 5));
-  Expect.equals(4, "strstr".lastIndexOf("tr", 5));
-  Expect.equals(3, "strstr".lastIndexOf("str", 5));
-  Expect.equals(3, "strstr".lastIndexOf("str", 5));
-  Expect.equals(3, "strstr".lastIndexOf("str", 5));
-  Expect.equals(3, "strstr".lastIndexOf("st", 5));
-  Expect.equals(3, "strstr".lastIndexOf("s", 5));
-  Expect.equals(5, "strstr".lastIndexOf("r", 5));
-  Expect.equals(2, "strstr".lastIndexOf("r", 4));
-  Expect.equals(2, "strstr".lastIndexOf("r", 3));
-  Expect.equals(5, "strstr".lastIndexOf("r"));
-  Expect.equals(5, "strstr".lastIndexOf("r", null));
-
-  String str = "hello";
-  for (int i = 0; i < 10; i++) {
-    if (i > str.length) {
-      Expect.throws(() => str.indexOf("", i));
-    } else {
-      int result = str.lastIndexOf("", i);
-      Expect.equals(i, result);
-    }
-  }
-
-  var re = new RegExp("an?");
-  Expect.equals(5, "banana".lastIndexOf(re));
-  Expect.equals(5, "banana".lastIndexOf(re, 6));
-  Expect.equals(5, "banana".lastIndexOf(re, 5));
-  Expect.equals(3, "banana".lastIndexOf(re, 4));
-  Expect.equals(3, "banana".lastIndexOf(re, 3));
-  Expect.equals(1, "banana".lastIndexOf(re, 2));
-  Expect.equals(1, "banana".lastIndexOf(re, 1));
-  Expect.equals(-1, "banana".lastIndexOf(re, 0));
-  Expect.throws(() => "banana".lastIndexOf(re, -1));
-  Expect.throws(() => "banana".lastIndexOf(re, 7));
-  re = new RegExp("x?");
-  for (int i = 0; i <= str.length; i++) {
-    Expect.equals(i, str.indexOf(re, i));
-  }
-}
-
-void testContains() {
-  Expect.isTrue("str".contains("s", 0));
-  Expect.isTrue("str".contains("st", 0));
-  Expect.isTrue("str".contains("str", 0));
-  Expect.isTrue("str".contains("t", 0));
-  Expect.isTrue("str".contains("r", 0));
-  Expect.isTrue("str".contains("tr", 0));
-
-  Expect.isFalse("str".contains("sr", 0));
-  Expect.isFalse("str".contains("string", 0));
-
-  Expect.isTrue("str".contains("", 0));
-  Expect.isTrue("".contains("", 0));
-  Expect.isFalse("".contains("s", 0));
-}
-
-void testReplaceAll() {
-  Expect.equals("AtoBtoCDtoE", "AfromBfromCDfromE".replaceAll("from", "to"));
-
-  // Test with the replaced string at the beginning.
-  Expect.equals("toABtoCDtoE", "fromABfromCDfromE".replaceAll("from", "to"));
-
-  // Test with the replaced string at the end.
-  Expect.equals(
-      "toABtoCDtoEto", "fromABfromCDfromEfrom".replaceAll("from", "to"));
-
-  // Test when there are no occurrence of the string to replace.
-  Expect.equals("ABC", "ABC".replaceAll("from", "to"));
-
-  // Test when the string to change is the empty string.
-  Expect.equals("", "".replaceAll("from", "to"));
-
-  // Test when the string to change is a substring of the string to
-  // replace.
-  Expect.equals("fro", "fro".replaceAll("from", "to"));
-
-  // Test when the string to change is the replaced string.
-  Expect.equals("to", "from".replaceAll("from", "to"));
-
-  // Test when the string to change is the replacement string.
-  Expect.equals("to", "to".replaceAll("from", "to"));
-
-  // Test replacing by the empty string.
-  Expect.equals("", "from".replaceAll("from", ""));
-  Expect.equals("AB", "AfromB".replaceAll("from", ""));
-
-  // Test changing the empty string.
-  Expect.equals("to", "".replaceAll("", "to"));
-
-  // Test replacing the empty string.
-  Expect.equals("toAtoBtoCto", "ABC".replaceAll("", "to"));
-}
-
-void testCompareTo() {
-  Expect.equals(0, "".compareTo(""));
-  Expect.equals(0, "str".compareTo("str"));
-  Expect.equals(-1, "str".compareTo("string"));
-  Expect.equals(1, "string".compareTo("str"));
-  Expect.equals(1, "string".compareTo(""));
-  Expect.equals(-1, "".compareTo("string"));
-}
-
-void testCharCodes() {
-  test(str) {
-    var list = str.codeUnits;
-    Expect.equals(str.length, list.length);
-    for (int i = 0; i < str.length; i++) {
-      Expect.equals(str.codeUnitAt(i), list[i]);
-    }
-  }
-
-  test("abc");
-  test("");
-  test(" ");
-}
-
-void testStringLength(int length, String str) {
-  Expect.equals(length, str.length);
-  (length == 0 ? Expect.isTrue : Expect.isFalse)(str.isEmpty);
-  (length != 0 ? Expect.isTrue : Expect.isFalse)(str.isNotEmpty);
-}
-
-void testRepeat() {
-  List<String> testStrings = [
-    "",
-    "\x00",
-    "a",
-    "ab",
-    "\x80",
-    "\xff",
-    "\u2028",
-    "abcdef\u2028",
-    "\u{10002}",
-    "abcdef\u{10002}"
-  ];
-  List<int> counts = [
-    0,
-    1,
-    2,
-    3,
-    4,
-    5,
-    6,
-    7,
-    8,
-    9,
-    10,
-    11,
-    12,
-    13,
-    14,
-    15,
-    16,
-    17,
-    127,
-    128,
-    129
-  ];
-  void testRepeat(str, repeat) {
-    String expect;
-    if (repeat <= 0) {
-      expect = "";
-    } else if (repeat == 1) {
-      expect = str;
-    } else {
-      StringBuffer buf = new StringBuffer();
-      for (int i = 0; i < repeat; i++) {
-        buf.write(str);
-      }
-      expect = buf.toString();
-    }
-    String actual = str * repeat;
-    Expect.equals(expect, actual, "$str#${str.length} * $repeat");
-  }
-
-  for (String str in testStrings) {
-    for (int repeat in counts) {
-      testRepeat(str, repeat);
-    }
-  }
-}
-
-void testPadLeft() {
-  Expect.equals("    1", "1".padLeft(5, ' '));
-  Expect.equals("   11", "11".padLeft(5, ' '));
-  Expect.equals("  111", "111".padLeft(5, ' '));
-  Expect.equals(" 1111", "1111".padLeft(5, ' '));
-  Expect.equals("11111", "11111".padLeft(5, ' '));
-  Expect.equals("111111", "111111".padLeft(5, ' '));
-  Expect.equals("   \u{10002}", "\u{10002}".padLeft(5, ' '));
-  Expect.equals('', ''.padLeft(0, 'a'));
-  Expect.equals('a', ''.padLeft(1, 'a'));
-  Expect.equals('aaaaa', ''.padLeft(5, 'a'));
-  Expect.equals('', ''.padLeft(-2, 'a'));
-
-  Expect.equals('xyzxyzxyzxyzxyz', ''.padLeft(5, 'xyz'));
-  Expect.equals('xyzxyzxyzxyza', 'a'.padLeft(5, 'xyz'));
-  Expect.equals('xyzxyzxyzaa', 'aa'.padLeft(5, 'xyz'));
-  Expect.equals('\u{10002}\u{10002}\u{10002}aa', 'aa'.padLeft(5, '\u{10002}'));
-  Expect.equals('a', 'a'.padLeft(10, ''));
-}
-
-void testPadRight() {
-  Expect.equals("1    ", "1".padRight(5, ' '));
-  Expect.equals("11   ", "11".padRight(5, ' '));
-  Expect.equals("111  ", "111".padRight(5, ' '));
-  Expect.equals("1111 ", "1111".padRight(5, ' '));
-  Expect.equals("11111", "11111".padRight(5, ' '));
-  Expect.equals("111111", "111111".padRight(5, ' '));
-  Expect.equals("\u{10002}   ", "\u{10002}".padRight(5, ' '));
-  Expect.equals('', ''.padRight(0, 'a'));
-  Expect.equals('a', ''.padRight(1, 'a'));
-  Expect.equals('aaaaa', ''.padRight(5, 'a'));
-  Expect.equals('', ''.padRight(-2, 'a'));
-
-  Expect.equals('xyzxyzxyzxyzxyz', ''.padRight(5, 'xyz'));
-  Expect.equals('axyzxyzxyzxyz', 'a'.padRight(5, 'xyz'));
-  Expect.equals('aaxyzxyzxyz', 'aa'.padRight(5, 'xyz'));
-  Expect.equals('aa\u{10002}\u{10002}\u{10002}', 'aa'.padRight(5, '\u{10002}'));
-  Expect.equals('a', 'a'.padRight(10, ''));
-}
diff --git a/tests/corelib_2/string_to_lower_case_test.dart b/tests/corelib_2/string_to_lower_case_test.dart
deleted file mode 100644
index 7abe023ee16..00000000000
--- a/tests/corelib_2/string_to_lower_case_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void testOneByteSting() {
-  // Compare one-byte-string toLowerCase with a two-byte-string toLowerCase.
-  var oneByteString =
-      new String.fromCharCodes(new List.generate(256, (i) => i)).toLowerCase();
-  var twoByteString =
-      new String.fromCharCodes(new List.generate(512, (i) => i)).toLowerCase();
-  Expect.isTrue(twoByteString.codeUnits.any((u) => u >= 256));
-  Expect.equals(oneByteString, twoByteString.substring(0, 256));
-}
-
-void main() {
-  testOneByteSting();
-}
diff --git a/tests/corelib_2/string_trim2_test.dart b/tests/corelib_2/string_trim2_test.dart
deleted file mode 100644
index a04737641c3..00000000000
--- a/tests/corelib_2/string_trim2_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-const WHITESPACE = const [
-  0x09,
-  0x0A,
-  0x0B,
-  0x0C,
-  0x0D,
-  0x20,
-  0x85,
-  0xA0,
-  0x1680,
-  0x2000,
-  0x2001,
-  0x2002,
-  0x2003,
-  0x2004,
-  0x2005,
-  0x2006,
-  0x2007,
-  0x2008,
-  0x2009,
-  0x200A,
-  0x202F,
-  0x205F,
-  0x3000,
-  0x2028,
-  0x2029,
-  0xFEFF,
-];
-
-main() {
-  for (var ws in WHITESPACE) {
-    var name = ws.toRadixString(16);
-    var c = new String.fromCharCode(ws);
-    Expect.equals("", c.trim(), "$name");
-    Expect.equals("a", ("a" + c).trim(), "a-$name");
-    Expect.equals("a", (c + "a").trim(), "$name-a");
-    Expect.equals("a", (c + c + "a" + c + c).trim(), "$name around");
-    Expect.equals(
-        "a" + c + "a", (c + c + "a" + c + "a" + c + c).trim(), "$name many");
-  }
-  Expect.equals("", new String.fromCharCodes(WHITESPACE).trim(), "ALL");
-}
diff --git a/tests/corelib_2/string_trim_test.dart b/tests/corelib_2/string_trim_test.dart
deleted file mode 100644
index 905abcdafb4..00000000000
--- a/tests/corelib_2/string_trim_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class StringTrimTest {
-  static testMain() {
-    Expect.equals("", " ".trim());
-    Expect.equals("", "     ".trim());
-    var a = "      lots of space on the left";
-    Expect.equals("lots of space on the left", a.trim());
-    a = "lots of space on the right           ";
-    Expect.equals("lots of space on the right", a.trim());
-    a = "         lots of space           ";
-    Expect.equals("lots of space", a.trim());
-    a = "  x  ";
-    Expect.equals("x", a.trim());
-    Expect.equals("", " \t \n \r ".trim());
-  }
-}
-
-main() {
-  StringTrimTest.testMain();
-}
diff --git a/tests/corelib_2/string_trimlr_test.dart b/tests/corelib_2/string_trimlr_test.dart
deleted file mode 100644
index 40fb76bd278..00000000000
--- a/tests/corelib_2/string_trimlr_test.dart
+++ /dev/null
@@ -1,112 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Characters with Whitespace property (Unicode 6.3).
-// 0009..000D    ; White_Space # Cc       <control-0009>..<control-000D>
-// 0020          ; White_Space # Zs       SPACE
-// 0085          ; White_Space # Cc       <control-0085>
-// 00A0          ; White_Space # Zs       NO-BREAK SPACE
-// 1680          ; White_Space # Zs       OGHAM SPACE MARK
-// 2000..200A    ; White_Space # Zs       EN QUAD..HAIR SPACE
-// 2028          ; White_Space # Zl       LINE SEPARATOR
-// 2029          ; White_Space # Zp       PARAGRAPH SEPARATOR
-// 202F          ; White_Space # Zs       NARROW NO-BREAK SPACE
-// 205F          ; White_Space # Zs       MEDIUM MATHEMATICAL SPACE
-// 3000          ; White_Space # Zs       IDEOGRAPHIC SPACE
-// And BOM:
-// FEFF          ; Byte order mark.
-const WHITESPACE = const [
-  0x09,
-  0x0A,
-  0x0B,
-  0x0C,
-  0x0D,
-  0x20,
-  0x85,
-  0xA0,
-  0x1680,
-  0x2000,
-  0x2001,
-  0x2002,
-  0x2003,
-  0x2004,
-  0x2005,
-  0x2006,
-  0x2007,
-  0x2008,
-  0x2009,
-  0x200A,
-  0x2028,
-  0x2029,
-  0x202F,
-  0x205F,
-  0x3000,
-  0xFEFF,
-];
-
-main() {
-  // Test the whitespace in different positions.
-  test(ws) {
-    // trimLeft
-    Expect.equals("", ws.trimLeft(), "K1");
-    Expect.equals("", (ws + ws).trimLeft(), "L2");
-    Expect.equals("a" + ws, ("a" + ws).trimLeft(), "L3");
-    Expect.equals("a", (ws + "a").trimLeft(), "L4");
-    Expect.equals("a" + ws + ws, (ws + ws + "a" + ws + ws).trimLeft(), "L5");
-    Expect.equals("a" + ws + "a", (ws + ws + "a" + ws + "a").trimLeft(), "L6");
-    var untrimmable = "a" + ws + "a";
-    Expect.identical(untrimmable, untrimmable.trimLeft(), "L7");
-    // trimRight
-    Expect.equals("", ws.trimRight(), "R1");
-    Expect.equals("", (ws + ws).trimRight(), "R2");
-    Expect.equals("a", ("a" + ws).trimRight(), "R3");
-    Expect.equals(ws + "a", (ws + "a").trimRight(), "R4");
-    Expect.equals(ws + ws + "a", (ws + ws + "a" + ws + ws).trimRight(), "R5");
-    Expect.equals("a" + ws + "a", ("a" + ws + "a" + ws + ws).trimRight(), "R6");
-    Expect.identical(untrimmable, untrimmable.trimRight(), "R7");
-  }
-
-  // Test each whitespace at different locations.
-  for (var ws in WHITESPACE) {
-    var c = new String.fromCharCode(ws);
-    test(c);
-  }
-  // Test all whitespaces at once at different locations.
-  test(new String.fromCharCodes(WHITESPACE));
-
-  // Empty strings.
-  Expect.identical("", "".trimLeft());
-  Expect.identical("", "".trimRight());
-
-  // Test all BMP chars and one surrogate pair.
-  for (int i = 0, j = 0; i <= 0x10000; i++) {
-    if (j < WHITESPACE.length && i == WHITESPACE[j]) {
-      j++;
-      continue;
-    }
-    // See below for these exceptions.
-    if (i == 0x180E) continue;
-    if (i == 0x200B) continue;
-
-    var s = new String.fromCharCode(i);
-    Expect.identical(s, s.trimLeft());
-    Expect.identical(s, s.trimRight());
-  }
-
-  // U+200b is not treated as whitespace, though historically, some JS engines
-  // did.
-  var s200B = new String.fromCharCode(0x200B);
-  Expect.identical(s200B, s200B.trimLeft());
-  Expect.identical(s200B, s200B.trimRight());
-
-  // U+180E ceased to be whitespace in Unicode version 6.3.0
-  // string_trimlr_test/unicode63 fails on implementations using earlier versions.
-  var s180E = new String.fromCharCode(0x180E);
-  Expect.identical(s180E, s180E.trimLeft()); //    //# unicode63: ok
-  Expect.identical(s180E, s180E.trimRight()); //   //# unicode63: ok
-}
diff --git a/tests/corelib_2/strings_test.dart b/tests/corelib_2/strings_test.dart
deleted file mode 100644
index 5ae10d3e6f0..00000000000
--- a/tests/corelib_2/strings_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test program for testing class 'Strings'.
-
-class StringsTest {
-  StringsTest() {}
-
-  toString() {
-    return "Strings Tester";
-  }
-
-  static testCreation() {
-    String s = "Hello";
-    List<int> l = new List.filled(s.length, null);
-    for (int i = 0; i < l.length; i++) {
-      l[i] = s.codeUnitAt(i);
-    }
-    String s2 = new String.fromCharCodes(l);
-    Expect.equals(s, s2);
-  }
-
-  static void testMain() {
-    testCreation();
-  }
-}
-
-main() {
-  StringsTest.testMain();
-}
diff --git a/tests/corelib_2/symbol_map_helper.dart b/tests/corelib_2/symbol_map_helper.dart
deleted file mode 100644
index 7e9ba355c27..00000000000
--- a/tests/corelib_2/symbol_map_helper.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library dart.test.symbol_map_helper;
-
-// TODO(ahe): Update map literals to avoid this method.
-Map<Symbol, dynamic> symbolMapToStringMap(Map<String, dynamic> map) {
-  if (map == null) return null;
-  Map<Symbol, dynamic> result = new Map<Symbol, dynamic>();
-  map.forEach((name, value) {
-    result[new Symbol(name)] = value;
-  });
-  return result;
-}
diff --git a/tests/corelib_2/symbol_operator_test.dart b/tests/corelib_2/symbol_operator_test.dart
deleted file mode 100644
index 18dce3b9d1c..00000000000
--- a/tests/corelib_2/symbol_operator_test.dart
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test of Symbol class for operators..
-
-dynamic $ = new Symbolize();
-
-main() {
-  testSymbol(#+, $ + $, "+");
-  testSymbol(#-, $ - $, "-");
-  testSymbol(#*, $ * $, "*");
-  testSymbol(#/, $ / $, "/");
-  testSymbol(#~/, $ ~/ $, "~/");
-  testSymbol(#%, $ % $, "%");
-  testSymbol(#<<, $ << $, "<<");
-  testSymbol(#>>, $ >> $, ">>");
-  testSymbol(#~, ~$, "~");
-  testSymbol(#|, $ | $, "|");
-  testSymbol(#&, $ & $, "&");
-  testSymbol(#^, $ ^ $, "^");
-  testSymbol(#<, $ < $, "<");
-  testSymbol(#<=, $ <= $, "<=");
-  testSymbol(#>, $ > $, ">");
-  testSymbol(#>=, $ >= $, ">=");
-  testSymbol(#==, new Symbol("=="), "=="); // Can't hit noSuchMethod.
-  testSymbol(#[], $[$], "[]");
-  testSymbol(#[]=, ($[$] = $).lastMember, "[]=");
-  testSymbol(Symbol.unaryMinus, -$, "unary-");
-
-  testSymbolThrows(">>>"); // //# 03: ok
-  testSymbolThrows("!"); //   //# 03: continued
-  testSymbolThrows("&&"); //  //# 03: continued
-  testSymbolThrows("||"); //  //# 03: continued
-  testSymbolThrows("?"); //   //# 03: continued
-  testSymbolThrows("?:"); //  //# 03: continued
-  testSymbolThrows("#"); //   //# 03: continued
-  testSymbolThrows("//"); //  //# 03: continued
-}
-
-void testSymbol(Symbol constSymbol, var mirrorSymbol, String name) {
-  Symbol dynamicSymbol = new Symbol(name);
-  if (constSymbol != mirrorSymbol) {
-    throw "Not equal #$name, \$$name: $constSymbol, $mirrorSymbol";
-  }
-  if (constSymbol != dynamicSymbol) {
-    throw "Not equal #$name, new Symbol('$name'): $constSymbol, $dynamicSymbol";
-  }
-  if (mirrorSymbol != dynamicSymbol) {
-    throw "Not equal \$$name, new Symbol('$name'): "
-        "$mirrorSymbol, $dynamicSymbol";
-  }
-  if (constSymbol.hashCode != mirrorSymbol.hashCode) {
-    throw "HashCode not equal #$name, \$$name: $constSymbol, $mirrorSymbol";
-  }
-  if (constSymbol.hashCode != dynamicSymbol.hashCode) {
-    throw "HashCode not equal #$name, new Symbol('$name'): "
-        "$constSymbol, $dynamicSymbol";
-  }
-  if (mirrorSymbol.hashCode != dynamicSymbol.hashCode) {
-    throw "HashCode not equal \$$name, new Symbol('$name'): "
-        "$mirrorSymbol, $dynamicSymbol";
-  }
-}
-
-void testSymbolThrows(name) {
-  bool fails = false;
-  try {
-    new Symbol(name);
-  } catch (e) {
-    fails = true;
-  }
-  if (!fails) {
-    throw "Didn't throw: $name";
-  }
-}
-
-class Symbolize {
-  Symbol lastMember;
-  noSuchMethod(m) => lastMember = m.memberName;
-}
diff --git a/tests/corelib_2/symbol_reserved_word_test.dart b/tests/corelib_2/symbol_reserved_word_test.dart
deleted file mode 100644
index 1305da7887e..00000000000
--- a/tests/corelib_2/symbol_reserved_word_test.dart
+++ /dev/null
@@ -1,126 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void checkBadSymbol(String s) {
-  Expect.throwsArgumentError(() => new Symbol(s));
-}
-
-main() {
-  var x;
-
-  // 'void' is allowed as a symbol name.
-  x = const Symbol('void'); //     //# 01: ok
-  x = #void; //                    //# 02: ok
-  x = new Symbol('void'); //       //# 03: ok
-
-  // However, it is not allowed as a part of a symbol name.
-  x = const Symbol('void.foo'); // //# 04: compile-time error
-  x = #void.foo; //                //# 05: compile-time error
-  checkBadSymbol('void.foo'); //   //# 06: ok
-  x = const Symbol('foo.void'); // //# 07: compile-time error
-  x = #foo.void; //                //# 08: compile-time error
-  checkBadSymbol('foo.void'); //   //# 09: ok
-
-  // All other reserved words are disallowed.
-  x = const Symbol('assert'); //   //# 10: compile-time error
-  x = const Symbol('break'); //    //# 10: continued
-  x = const Symbol('case'); //     //# 10: continued
-  x = const Symbol('catch'); //    //# 10: continued
-  x = const Symbol('class'); //    //# 10: continued
-  x = const Symbol('const'); //    //# 10: continued
-  x = const Symbol('continue'); // //# 10: continued
-  x = const Symbol('default'); //  //# 10: continued
-  x = const Symbol('do'); //       //# 10: continued
-  x = const Symbol('else'); //     //# 10: continued
-  x = const Symbol('enum'); //     //# 10: continued
-  x = const Symbol('extends'); //  //# 10: continued
-  x = #assert; //                  //# 11: compile-time error
-  x = const Symbol('false'); //    //# 10: continued
-  x = const Symbol('final'); //    //# 10: continued
-  x = const Symbol('finally'); //  //# 10: continued
-  x = const Symbol('for'); //      //# 10: continued
-  x = const Symbol('if'); //       //# 10: continued
-  x = const Symbol('in'); //       //# 10: continued
-  x = const Symbol('is'); //       //# 10: continued
-  x = const Symbol('new'); //      //# 10: continued
-  x = const Symbol('null'); //     //# 10: continued
-  x = const Symbol('rethrow'); //  //# 10: continued
-  x = const Symbol('return'); //   //# 10: continued
-  x = const Symbol('super'); //    //# 10: continued
-  x = const Symbol('switch'); //   //# 10: continued
-  x = const Symbol('this'); //     //# 10: continued
-  x = const Symbol('throw'); //    //# 10: continued
-  x = const Symbol('true'); //     //# 10: continued
-  x = const Symbol('try'); //      //# 10: continued
-  x = const Symbol('var'); //      //# 10: continued
-  x = const Symbol('while'); //    //# 10: continued
-  x = const Symbol('with'); //     //# 10: continued
-  x = #break; //                   //# 11: continued
-  x = #case; //                    //# 11: continued
-  x = #catch; //                   //# 11: continued
-  x = #class; //                   //# 11: continued
-  x = #const; //                   //# 11: continued
-  x = #continue; //                //# 11: continued
-  x = #default; //                 //# 11: continued
-  x = #do; //                      //# 11: continued
-  x = #else; //                    //# 11: continued
-  x = #enum; //                    //# 11: continued
-  x = #extends; //                 //# 11: continued
-  x = #false; //                   //# 11: continued
-  x = #final; //                   //# 11: continued
-  x = #finally; //                 //# 11: continued
-  x = #for; //                     //# 11: continued
-  x = #if; //                      //# 11: continued
-  x = #in; //                      //# 11: continued
-  x = #is; //                      //# 11: continued
-  x = #new; //                     //# 11: continued
-  x = #null; //                    //# 11: continued
-  x = #rethrow; //                 //# 11: continued
-  x = #return; //                  //# 11: continued
-  x = #super; //                   //# 11: continued
-  x = #switch; //                  //# 11: continued
-  x = #this; //                    //# 11: continued
-  x = #throw; //                   //# 11: continued
-  x = #true; //                    //# 11: continued
-  x = #try; //                     //# 11: continued
-  x = #var; //                     //# 11: continued
-  x = #while; //                   //# 11: continued
-  x = #with; //                    //# 11: continued
-  checkBadSymbol('assert'); //     //# 12: ok
-  checkBadSymbol('break'); //      //# 12: continued
-  checkBadSymbol('case'); //       //# 12: continued
-  checkBadSymbol('catch'); //      //# 12: continued
-  checkBadSymbol('class'); //      //# 12: continued
-  checkBadSymbol('const'); //      //# 12: continued
-  checkBadSymbol('continue'); //   //# 12: continued
-  checkBadSymbol('default'); //    //# 12: continued
-  checkBadSymbol('do'); //         //# 12: continued
-  checkBadSymbol('else'); //       //# 12: continued
-  checkBadSymbol('enum'); //       //# 12: continued
-  checkBadSymbol('extends'); //    //# 12: continued
-  checkBadSymbol('false'); //      //# 12: continued
-  checkBadSymbol('final'); //      //# 12: continued
-  checkBadSymbol('finally'); //    //# 12: continued
-  checkBadSymbol('for'); //        //# 12: continued
-  checkBadSymbol('if'); //         //# 12: continued
-  checkBadSymbol('in'); //         //# 12: continued
-  checkBadSymbol('is'); //         //# 12: continued
-  checkBadSymbol('new'); //        //# 12: continued
-  checkBadSymbol('null'); //       //# 12: continued
-  checkBadSymbol('rethrow'); //    //# 12: continued
-  checkBadSymbol('return'); //     //# 12: continued
-  checkBadSymbol('super'); //      //# 12: continued
-  checkBadSymbol('switch'); //     //# 12: continued
-  checkBadSymbol('this'); //       //# 12: continued
-  checkBadSymbol('throw'); //      //# 12: continued
-  checkBadSymbol('true'); //       //# 12: continued
-  checkBadSymbol('try'); //        //# 12: continued
-  checkBadSymbol('var'); //        //# 12: continued
-  checkBadSymbol('while'); //      //# 12: continued
-  checkBadSymbol('with'); //       //# 12: continued
-}
diff --git a/tests/corelib_2/symbol_test.dart b/tests/corelib_2/symbol_test.dart
deleted file mode 100644
index 1cda51e68de..00000000000
--- a/tests/corelib_2/symbol_test.dart
+++ /dev/null
@@ -1,81 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Basic test of Symbol class.
-
-main() {
-  var x;
-  print(x = const Symbol('fisk'));
-  try {
-    print(const Symbol(0)); //# 01: compile-time error
-  } on NoSuchMethodError {
-    print('Caught NoSuchMethodError');
-  } on TypeError {
-    print('Caught TypeError');
-  }
-
-  try {
-    print(const Symbol('0')); //# 02: compile-time error
-  } on ArgumentError catch (e) {
-    print('Caught $e');
-  }
-
-  try {
-    print(const Symbol('_')); //# 03: compile-time error
-  } on ArgumentError catch (e) {
-    print('Caught $e');
-  }
-
-  try {
-    print(new Symbol('0'));
-    throw 'Expected an ArgumentError';
-  } on ArgumentError catch (e) {
-    print('Caught $e');
-  }
-
-  try {
-    print(new Symbol('_'));
-    throw 'Expected an ArgumentError';
-  } on ArgumentError catch (e) {
-    print('Caught $e');
-  }
-
-  if (!identical(const Symbol('fisk'), x)) {
-    throw 'Symbol constant is not canonicalized';
-  }
-
-  if (const Symbol('fisk') != x) {
-    throw 'Symbol constant is not equal to itself';
-  }
-
-  if (const Symbol('fisk') != new Symbol('fisk')) {
-    throw 'Symbol constant is not equal to its non-const equivalent';
-  }
-
-  if (new Symbol('fisk') != new Symbol('fisk')) {
-    throw 'new Symbol is not equal to its equivalent';
-  }
-
-  if (new Symbol('fisk') == new Symbol('hest')) {
-    throw 'unrelated Symbols are equal';
-  }
-
-  if (new Symbol('fisk') == new Object()) {
-    throw 'unrelated objects are equal';
-  }
-
-  x.hashCode as int;
-
-  new Symbol('fisk').hashCode as int;
-
-  if (new Symbol('fisk').hashCode != x.hashCode) {
-    throw "non-const Symbol's hashCode not equal to its const equivalent";
-  }
-
-  if (new Symbol('') != Symbol.empty) {
-    throw 'empty Symbol not equals to itself';
-  }
-}
diff --git a/tests/corelib_2/throw_half_surrogate_pair_test.dart b/tests/corelib_2/throw_half_surrogate_pair_test.dart
deleted file mode 100644
index 69d40e7394e..00000000000
--- a/tests/corelib_2/throw_half_surrogate_pair_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  var trebleClef = "\u{1D11E}";
-  if (trebleClef.length != 2) throw "String should be a surrogate pair";
-  // These uncaught exceptions should not cause the VM to crash attempting to
-  // print a malformed string.
-  throw trebleClef[0]; // //# 01: runtime error
-  throw trebleClef[1]; // //# 02: runtime error
-}
diff --git a/tests/corelib_2/toInt_test.dart b/tests/corelib_2/toInt_test.dart
deleted file mode 100644
index b10154d75a0..00000000000
--- a/tests/corelib_2/toInt_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.equals(-0x80000001, (-0x80000001).toInt());
-  Expect.equals(-0x80000000, (-0x80000000 - 0.7).toInt());
-  Expect.equals(-0x80000000, (-0x80000000 - 0.3).toInt());
-  Expect.equals(-0x7FFFFFFF, (-0x80000000 + 0.3).toInt());
-  Expect.equals(-0x7FFFFFFF, (-0x80000000 + 0.7).toInt());
-  Expect.equals(-0x7FFFFFFF, (-0x7FFFFFFF).toInt());
-  Expect.equals(0x7FFFFFFE, (0x7FFFFFFE).toInt());
-  Expect.equals(0x7FFFFFFE, (0x7FFFFFFF - 0.7).toInt());
-  Expect.equals(0x7FFFFFFE, (0x7FFFFFFF - 0.3).toInt());
-  Expect.equals(0x7FFFFFFF, (0x7FFFFFFF + 0.3).toInt());
-  Expect.equals(0x7FFFFFFF, (0x7FFFFFFF + 0.7).toInt());
-  Expect.equals(0x80000000, 0x80000000.toInt());
-}
diff --git a/tests/corelib_2/type_hashcode_test.dart b/tests/corelib_2/type_hashcode_test.dart
deleted file mode 100644
index 859c26ffcbb..00000000000
--- a/tests/corelib_2/type_hashcode_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-
-// @dart = 2.9
-import "package:expect/expect.dart";
-
-void main() {
-  var h = "hello", w = "world";
-  Expect.notEquals(h.hashCode, w.hashCode);
-  Expect.notEquals((String).hashCode, (int).hashCode);
-  var c = h.runtimeType.hashCode;
-  Expect.isTrue(c is int);
-  Expect.notEquals(c, null);
-  Expect.notEquals(c, 0);
-}
diff --git a/tests/corelib_2/type_tostring_test.dart b/tests/corelib_2/type_tostring_test.dart
deleted file mode 100644
index ca420bc14e1..00000000000
--- a/tests/corelib_2/type_tostring_test.dart
+++ /dev/null
@@ -1,135 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing the behavior of `Type.toString`.
-//
-// The behavior is *unspecified*, but users may depend on it.
-// This test ensures that we do not change the format inadvertently.
-// If we decide to change the format, it should be deliberate and consistent.
-
-import "dart:async" show FutureOr;
-
-import "package:expect/expect.dart";
-
-void expectType(Type type, Pattern text) {
-  var typeString = "$type";
-  if (typeString.contains("minified:")) {
-    return; // No checks for minimized types.
-  }
-  if (text is String) {
-    Expect.equals(text, typeString);
-    return;
-  }
-  var match = text.matchAsPrefix(typeString);
-  if (match != null && match.end == typeString.length) return;
-  Expect.fail(
-      "$typeString was not matched by $text${match == null ? "" : ", match: ${match[0]}"}");
-}
-
-void expect<T>(Pattern text) {
-  expectType(T, text);
-}
-
-void main() {
-  // Simple interface types.
-  expect<int>("int");
-  expect<Object>("Object");
-  expect<Null>("Null");
-  expect<Base>("Base");
-  expect<Mixin>("Mixin");
-  // Named mixin applications use their name.
-  expect<MixinApplication>("MixinApplication");
-
-  // Non-class, non-function types.
-  expect<void>("void");
-  expect<dynamic>("dynamic");
-  expect<Function>("Function");
-  // TODO: Add Never with NNBD.
-
-  // Generic interface types.
-  expect<List<int>>("List<int>");
-  expect<Iterable<Object>>("Iterable<Object>");
-  expect<Map<List<String>, Future<void>>>("Map<List<String>, Future<void>>");
-  expect<GenericMixin<String>>("GenericMixin<String>");
-
-  // Generic non-class, non-function type.
-  expect<FutureOr<int>>("FutureOr<int>");
-  expect<FutureOr<Object>>("Object");
-  expect<FutureOr<FutureOr<Future<Object>>>>(
-      "FutureOr<FutureOr<Future<Object>>>");
-  expect<FutureOr<Null>>("Future<Null>?");
-  // TODO: Add nullable types with NNBD.
-
-  // Private names may be mangled.
-  expect<_Private>(re(r'_Private\b.*$'));
-
-  // Function types.
-  expect<void Function()>("() => void");
-  expect<String Function()>("() => String");
-  expect<String Function(String)>("(String) => String");
-  expect<String Function(int, [String])>("(int, [String]) => String");
-  expect<String Function(int, {String z})>("(int, {String z}) => String");
-  expect<int Function(void Function(String))>("((String) => void) => int");
-  expect<int Function(void) Function(String)>("(String) => (void) => int");
-
-  // A type alias is expanded to its type.
-  expect<Typedef>("(dynamic) => dynamic");
-  expect<Typedef<int>>("(int) => int");
-  expectType(Typedef, "(dynamic) => dynamic");
-
-  // Generic functions do not promise to preserve type variable names,
-  // but do keep the structure of `<typevars>(params) => result`.
-
-  // Cannot pass a generic type as type argument, so passing the Type object
-  // derived from evaluating the typedef name.
-
-  // Format: <T>() => void
-  expectType(G0, re(r"<\w+>\(\) => void$"));
-  // Format: <T>() => T
-  expectType(G1, re(r"<(\w+)>\(\) => \1$"));
-  // Format: <T>(T) => T
-  expectType(G2, re(r"<(\w+)>\(\1\) => \1$"));
-  // Format: <T>(<S>(S, T) => S) => T
-  expectType(G3, re(r"<(\w+)>\(<(\w+)>\(\2, \1\) => \2\) => \1$"));
-  // Format: <S>(S) => <T>(S, T) => S
-  expectType(G4, re(r"<(\w+)>\(\1\) => <(\w+)>\(\1, \2\) => \1$"));
-  // Format: <S, T>(S, T) => S
-  expectType(G5, re(r"<(\w+), (\w+)>\(\1, \2\) => \1$"));
-
-  // Format: <T>(<S>(S) => S) => T
-  expectType(Weird, re(r"<(\w+)>\(<(\w+)>\(\2\) => \2\) => \1$"));
-
-  // One with everything.
-  expect<FutureOr<void Function([T Function<S, T>(Map<dynamic, Typedef<S>>)])>>(
-      // Format: FutureOr<([<S, T>(Map<dynamic, (S) => S>) => T]) => void>
-      re(r"FutureOr<\(\[<(\w+), (\w+)>\(Map<dynamic, "
-          r"\(\1\) => \1>\) => \2\]\) => void>$"));
-}
-
-// Types to test against.
-class _Private {}
-
-class Base {}
-
-mixin Mixin {}
-
-class MixinApplication = Base with Mixin;
-
-mixin GenericMixin<T> implements List<T> {}
-
-typedef Typedef<T> = T Function(T);
-
-// Generic function types.
-typedef G0 = void Function<T>();
-typedef G1 = T Function<T>();
-typedef G2 = T Function<T>(T);
-typedef G3 = T Function<T>(S Function<S>(S, T));
-typedef G4 = S Function<T>(S, T) Function<S>(S);
-typedef G5 = S Function<S, T>(S, T);
-
-typedef Weird = X Function<X>(X Function<X>(X));
-
-RegExp re(String source) => RegExp(source);
diff --git a/tests/corelib_2/typed_data_with_limited_ints_test.dart b/tests/corelib_2/typed_data_with_limited_ints_test.dart
deleted file mode 100644
index aaa1df1ca38..00000000000
--- a/tests/corelib_2/typed_data_with_limited_ints_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization_counter_threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-// Test for dart:typed_data (in particular, ByteData.get/setUint64 and
-// UInt64List) with limited 64-bit integers.
-
-import 'dart:typed_data';
-import "package:expect/expect.dart";
-
-testByteData() {
-  ByteData data = new ByteData(17);
-
-  data.setInt64(5, -0x1122334455667788);
-  Expect.equals(-0x1122334455667788, data.getUint64(5));
-
-  data.setUint32(5, 0x10203040);
-  Expect.equals(0x10203040aa998878, data.getUint64(5));
-
-  data.setUint64(3, -1);
-  Expect.equals(-1, data.getInt64(3));
-
-  data.setUint64(7, 0x7fedcba987654321);
-  Expect.equals(0x7fedcba987654321, data.getInt64(7));
-}
-
-testUint64List() {
-  Uint64List u64 = new Uint64List(3);
-  Int64List i64 = new Int64List.view(u64.buffer);
-
-  i64[0] = 0x7fffffffffffffff;
-  i64[1] = -1;
-  i64[2] = 42;
-
-  Expect.equals(0x7fffffffffffffff, u64[0]);
-  Expect.equals(-1, u64[1]);
-  Expect.equals(42, u64[2]);
-
-  u64[0] = -900000000000000;
-  Expect.equals(-900000000000000, i64[0]);
-}
-
-main() {
-  for (int i = 0; i < 20; i++) {
-    testByteData();
-    testUint64List();
-  }
-}
diff --git a/tests/corelib_2/unicode2_test.dart b/tests/corelib_2/unicode2_test.dart
deleted file mode 100755
index f641a554ae8..00000000000
--- a/tests/corelib_2/unicode2_test.dart
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-const String testPhrase = "The quick brown fox jumps over the lazy dog.";
-
-const List<int> testCodepoints = const <int>[
-  84,
-  104,
-  101,
-  32,
-  113,
-  117,
-  105,
-  99,
-  107,
-  32,
-  98,
-  114,
-  111,
-  119,
-  110,
-  32,
-  102,
-  111,
-  120,
-  32,
-  106,
-  117,
-  109,
-  112,
-  115,
-  32,
-  111,
-  118,
-  101,
-  114,
-  32,
-  116,
-  104,
-  101,
-  32,
-  108,
-  97,
-  122,
-  121,
-  32,
-  100,
-  111,
-  103,
-  46
-];
-
-main() {
-  testCodepointsToString();
-  testStringCharCodes();
-  testEmptyStringFromCharCodes();
-  testEmptyStringCharCodes();
-}
-
-void testStringCharCodes() {
-  Expect.listEquals(testCodepoints, testPhrase.codeUnits);
-}
-
-void testCodepointsToString() {
-  Expect.stringEquals(testPhrase, new String.fromCharCodes(testCodepoints));
-}
-
-void testEmptyStringFromCharCodes() {
-  Expect.stringEquals("", new String.fromCharCodes(<int>[]));
-}
-
-void testEmptyStringCharCodes() {
-  Expect.listEquals([], "".codeUnits);
-}
diff --git a/tests/corelib_2/unicode_test.dart b/tests/corelib_2/unicode_test.dart
deleted file mode 100644
index aaa9cf60c43..00000000000
--- a/tests/corelib_2/unicode_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class UnicodeTest {
-  static testMain() {
-    var lowerStrasse = new String.fromCharCodes([115, 116, 114, 97, 223, 101]);
-    Expect.equals("STRASSE", lowerStrasse.toUpperCase());
-  }
-}
-
-main() {
-  UnicodeTest.testMain();
-}
diff --git a/tests/corelib_2/uri_base_test.dart b/tests/corelib_2/uri_base_test.dart
deleted file mode 100644
index eb35e610806..00000000000
--- a/tests/corelib_2/uri_base_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  try {
-    Uri base = Uri.base;
-    Expect.isTrue(Uri.base.isScheme("file") || Uri.base.isScheme("http"));
-  } on UnsupportedError catch (e) {
-    Expect.isTrue(e.toString().contains("'Uri.base' is not supported"));
-  }
-}
diff --git a/tests/corelib_2/uri_file_test.dart b/tests/corelib_2/uri_file_test.dart
deleted file mode 100644
index 198220cbaa5..00000000000
--- a/tests/corelib_2/uri_file_test.dart
+++ /dev/null
@@ -1,295 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-testFileUri() {
-  final unsupported = new UnsupportedError("");
-
-  var tests = [
-    ["", "", ""],
-    ["relative", "relative", "relative"],
-    ["relative/", "relative/", "relative\\"],
-    ["a%20b", "a b", "a b"],
-    ["a%20b/", "a b/", "a b\\"],
-    ["a/b", "a/b", "a\\b"],
-    ["a/b/", "a/b/", "a\\b\\"],
-    ["a%20b/c%20d", "a b/c d", "a b\\c d"],
-    ["a%20b/c%20d/", "a b/c d/", "a b\\c d\\"],
-    ["file:///absolute", "/absolute", "\\absolute"],
-    ["file:///absolute", "/absolute", "\\absolute"],
-    ["file:///a/b", "/a/b", "\\a\\b"],
-    ["file:///a/b", "/a/b", "\\a\\b"],
-    ["file://server/a/b", unsupported, "\\\\server\\a\\b"],
-    ["file://server/a/b/", unsupported, "\\\\server\\a\\b\\"],
-    ["file:///C:/", "/C:/", "C:\\"],
-    ["file:///C:/a/b", "/C:/a/b", "C:\\a\\b"],
-    ["file:///C:/a/b/", "/C:/a/b/", "C:\\a\\b\\"],
-    ["http:/a/b", unsupported, unsupported],
-    ["https:/a/b", unsupported, unsupported],
-    ["urn:a:b", unsupported, unsupported],
-  ];
-
-  void check(String s, filePath, bool windows) {
-    Uri uri = Uri.parse(s);
-    if (filePath is Error) {
-      if (filePath is UnsupportedError) {
-        Expect.throwsUnsupportedError(() => uri.toFilePath(windows: windows));
-      } else {
-        Expect.throws(() => uri.toFilePath(windows: windows));
-      }
-    } else {
-      Expect.equals(filePath, uri.toFilePath(windows: windows));
-      Expect.equals(s, new Uri.file(filePath, windows: windows).toString());
-    }
-  }
-
-  for (var test in tests) {
-    check(test[0], test[1], false);
-    check(test[0], test[2], true);
-  }
-
-  Uri uri;
-  uri = Uri.parse("file:a");
-  Expect.equals("/a", uri.toFilePath(windows: false));
-  Expect.equals("\\a", uri.toFilePath(windows: true));
-  uri = Uri.parse("file:a/");
-  Expect.equals("/a/", uri.toFilePath(windows: false));
-  Expect.equals("\\a\\", uri.toFilePath(windows: true));
-}
-
-testFileUriWindowsSlash() {
-  var tests = [
-    ["", "", ""],
-    ["relative", "relative", "relative"],
-    ["relative/", "relative/", "relative\\"],
-    ["a%20b", "a b", "a b"],
-    ["a%20b/", "a b/", "a b\\"],
-    ["a/b", "a/b", "a\\b"],
-    ["a/b/", "a/b/", "a\\b\\"],
-    ["a%20b/c%20d", "a b/c d", "a b\\c d"],
-    ["a%20b/c%20d/", "a b/c d/", "a b\\c d\\"],
-    ["file:///absolute", "/absolute", "\\absolute"],
-    ["file:///absolute", "/absolute", "\\absolute"],
-    ["file:///a/b", "/a/b", "\\a\\b"],
-    ["file:///a/b", "/a/b", "\\a\\b"],
-    ["file://server/a/b", "//server/a/b", "\\\\server\\a\\b"],
-    ["file://server/a/b/", "//server/a/b/", "\\\\server\\a\\b\\"],
-    ["file:///C:/", "C:/", "C:\\"],
-    ["file:///C:/a/b", "C:/a/b", "C:\\a\\b"],
-    ["file:///C:/a/b/", "C:/a/b/", "C:\\a\\b\\"],
-  ];
-
-  for (var test in tests) {
-    Uri uri = new Uri.file(test[1], windows: true);
-    Expect.equals(test[0], uri.toString());
-    Expect.equals(test[2], uri.toFilePath(windows: true));
-    bool couldBeDir = uri.path.isEmpty || uri.path.endsWith('\\');
-    Uri dirUri = new Uri.directory(test[1], windows: true);
-    Expect.isTrue(dirUri.path.isEmpty || dirUri.path.endsWith('/'));
-    if (couldBeDir) {
-      Expect.equals(uri, dirUri);
-    }
-  }
-}
-
-testFileUriWindowsWin32Namespace() {
-  var tests = [
-    ["\\\\?\\C:\\", "file:///C:/", "C:\\"],
-    ["\\\\?\\C:\\", "file:///C:/", "C:\\"],
-    [
-      "\\\\?\\UNC\\server\\share\\file",
-      "file://server/share/file",
-      "\\\\server\\share\\file"
-    ],
-  ];
-
-  for (var test in tests) {
-    Uri uri = new Uri.file(test[0], windows: true);
-    Expect.equals(test[1], uri.toString());
-    Expect.equals(test[2], uri.toFilePath(windows: true));
-  }
-
-  Expect.throwsArgumentError(() => new Uri.file("\\\\?\\file", windows: true));
-  Expect.throwsArgumentError(
-      () => new Uri.file("\\\\?\\UNX\\server\\share\\file", windows: true));
-  Expect.throwsArgumentError(
-      () => new Uri.directory("\\\\?\\file", windows: true));
-  Expect.throwsArgumentError(() =>
-      new Uri.directory("\\\\?\\UNX\\server\\share\\file", windows: true));
-}
-
-testFileUriDriveLetter() {
-  check(String s, String nonWindows, String windows) {
-    Uri uri;
-    uri = Uri.parse(s);
-    Expect.equals(nonWindows, uri.toFilePath(windows: false));
-    if (windows != null) {
-      Expect.equals(windows, uri.toFilePath(windows: true));
-    } else {
-      Expect.throwsUnsupportedError(() => uri.toFilePath(windows: true));
-    }
-  }
-
-  check("file:///C:", "/C:", "C:\\");
-  check("file:///C:/", "/C:/", "C:\\");
-  check("file:///C:a", "/C:a", null);
-  check("file:///C:a/", "/C:a/", null);
-
-  Expect.throwsArgumentError(() => new Uri.file("C:", windows: true));
-  Expect.throwsArgumentError(() => new Uri.file("C:a", windows: true));
-  Expect.throwsArgumentError(() => new Uri.file("C:a\b", windows: true));
-  Expect.throwsArgumentError(() => new Uri.directory("C:", windows: true));
-  Expect.throwsArgumentError(() => new Uri.directory("C:a", windows: true));
-  Expect.throwsArgumentError(() => new Uri.directory("C:a\b", windows: true));
-}
-
-testFileUriResolve() {
-  var tests = [
-    ["file:///a", "/a", "", "\\a", ""],
-    ["file:///a/", "/a/", "", "\\a\\", ""],
-    ["file:///b", "/a", "b", "\\a", "b"],
-    ["file:///b/", "/a", "b/", "\\a", "b\\"],
-    ["file:///a/b", "/a/", "b", "\\a\\", "b"],
-    ["file:///a/b/", "/a/", "b/", "\\a\\", "b\\"],
-    ["file:///a/c/d", "/a/b", "c/d", "\\a\\b", "c\\d"],
-    ["file:///a/c/d/", "/a/b", "c/d/", "\\a\\b", "c\\d\\"],
-    ["file:///a/b/c/d", "/a/b/", "c/d", "\\a\\b\\", "c\\d"],
-    ["file:///a/b/c/d/", "/a/b/", "c/d/", "\\a\\b\\", "c\\d\\"],
-  ];
-
-  check(String s, String absolute, String relative, bool windows) {
-    Uri absoluteUri = new Uri.file(absolute, windows: windows);
-    Uri relativeUri = new Uri.file(relative, windows: windows);
-    String relativeString = windows ? relative.replaceAll("\\", "/") : relative;
-    Expect.equals(s, absoluteUri.resolve(relativeString).toString());
-    Expect.equals(s, absoluteUri.resolveUri(relativeUri).toString());
-  }
-
-  for (var test in tests) {
-    check(test[0], test[1], test[2], false);
-    check(test[0], test[1], test[2], true);
-    check(test[0], test[1], test[4], true);
-    check(test[0], test[3], test[2], true);
-    check(test[0], test[3], test[4], true);
-  }
-}
-
-testFileUriIllegalCharacters() {
-  // Slash is an invalid character in file names on both non-Windows
-  // and Windows.
-  Uri uri = Uri.parse("file:///a%2Fb");
-  Expect.throwsUnsupportedError(() => uri.toFilePath(windows: false));
-  Expect.throwsUnsupportedError(() => uri.toFilePath(windows: true));
-
-  // Illegal characters in windows file names.
-  var illegalWindowsPaths = [
-    "a<b",
-    "a>b",
-    "a:b",
-    "a\"b",
-    "a|b",
-    "a?b",
-    "a*b",
-    "\\\\?\\c:\\a/b"
-  ];
-
-  for (var test in illegalWindowsPaths) {
-    Expect.throwsArgumentError(() => new Uri.file(test, windows: true));
-    Expect.throwsArgumentError(() => new Uri.file("\\$test", windows: true));
-    Expect.throwsArgumentError(() => new Uri.directory(test, windows: true));
-    Expect
-        .throwsArgumentError(() => new Uri.directory("\\$test", windows: true));
-
-    // It is possible to create non-Windows URIs, but not Windows URIs.
-    Uri uri = new Uri.file(test, windows: false);
-    Uri absoluteUri = new Uri.file("/$test", windows: false);
-    Uri dirUri = new Uri.directory(test, windows: false);
-    Uri dirAbsoluteUri = new Uri.directory("/$test", windows: false);
-    Expect.throwsArgumentError(() => new Uri.file(test, windows: true));
-    Expect.throwsArgumentError(() => new Uri.file("\\$test", windows: true));
-    Expect.throwsArgumentError(() => new Uri.directory(test, windows: true));
-    Expect
-        .throwsArgumentError(() => new Uri.directory("\\$test", windows: true));
-
-    // It is possible to extract non-Windows file path, but not
-    // Windows file path.
-    Expect.equals(test, uri.toFilePath(windows: false));
-    Expect.equals("/$test", absoluteUri.toFilePath(windows: false));
-    Expect.equals("$test/", dirUri.toFilePath(windows: false));
-    Expect.equals("/$test/", dirAbsoluteUri.toFilePath(windows: false));
-    Expect.throwsUnsupportedError(() => uri.toFilePath(windows: true));
-    Expect.throwsUnsupportedError(() => absoluteUri.toFilePath(windows: true));
-    Expect.throwsUnsupportedError(() => dirUri.toFilePath(windows: true));
-    Expect
-        .throwsUnsupportedError(() => dirAbsoluteUri.toFilePath(windows: true));
-  }
-
-  // Backslash
-  illegalWindowsPaths = ["a\\b", "a\\b\\"];
-  for (var test in illegalWindowsPaths) {
-    // It is possible to create both non-Windows URIs, and Windows URIs.
-    Uri uri = new Uri.file(test, windows: false);
-    Uri absoluteUri = new Uri.file("/$test", windows: false);
-    Uri dirUri = new Uri.directory(test, windows: false);
-    Uri dirAbsoluteUri = new Uri.directory("/$test", windows: false);
-    new Uri.file(test, windows: true);
-    new Uri.file("\\$test", windows: true);
-
-    // It is possible to extract non-Windows file path, but not
-    // Windows file path from the non-Windows URI (it has a backslash
-    // in a path segment).
-    Expect.equals(test, uri.toFilePath(windows: false));
-    Expect.equals("/$test", absoluteUri.toFilePath(windows: false));
-    Expect.equals("$test/", dirUri.toFilePath(windows: false));
-    Expect.equals("/$test/", dirAbsoluteUri.toFilePath(windows: false));
-    Expect.throwsUnsupportedError(() => uri.toFilePath(windows: true));
-    Expect.throwsUnsupportedError(() => absoluteUri.toFilePath(windows: true));
-    Expect.throwsUnsupportedError(() => dirUri.toFilePath(windows: true));
-    Expect
-        .throwsUnsupportedError(() => dirAbsoluteUri.toFilePath(windows: true));
-  }
-}
-
-testFileUriIllegalDriveLetter() {
-  Expect.throwsArgumentError(() => new Uri.file("1:\\", windows: true));
-  Expect.throwsArgumentError(() => new Uri.directory("1:\\", windows: true));
-  Uri uri = new Uri.file("1:\\", windows: false);
-  Uri dirUri = new Uri.directory("1:\\", windows: false);
-  Expect.equals("1:\\", uri.toFilePath(windows: false));
-  Expect.equals("1:\\/", dirUri.toFilePath(windows: false));
-  Expect.throwsUnsupportedError(() => uri.toFilePath(windows: true));
-  Expect.throwsUnsupportedError(() => dirUri.toFilePath(windows: true));
-}
-
-testAdditionalComponents() {
-  check(String s, {bool windowsOk: false}) {
-    Uri uri = Uri.parse(s);
-    Expect.throwsUnsupportedError(() => uri.toFilePath(windows: false));
-    if (windowsOk) {
-      Expect.isTrue(uri.toFilePath(windows: true) is String);
-    } else {
-      Expect.throwsUnsupportedError(() => uri.toFilePath(windows: true));
-    }
-  }
-
-  check("file:///path?query");
-  check("file:///path#fragment");
-  check("file:///path?query#fragment");
-  check("file://host/path", windowsOk: true);
-  check("file://user:password@host/path", windowsOk: true);
-}
-
-main() {
-  testFileUri();
-  testFileUriWindowsSlash();
-  testFileUriDriveLetter();
-  testFileUriWindowsWin32Namespace();
-  testFileUriResolve();
-  testFileUriIllegalCharacters();
-  testFileUriIllegalDriveLetter();
-  testAdditionalComponents();
-}
diff --git a/tests/corelib_2/uri_http_test.dart b/tests/corelib_2/uri_http_test.dart
deleted file mode 100644
index 2441c28afaa..00000000000
--- a/tests/corelib_2/uri_http_test.dart
+++ /dev/null
@@ -1,118 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void testHttpUri() {
-  void check(Uri uri, String expected) {
-    Expect.equals(expected, uri.toString());
-  }
-
-  check(new Uri.http("", ""), "http:");
-  check(new Uri.http(""), "http:");
-  check(new Uri.http("@:", ""), "http://");
-  check(new Uri.http("@:"), "http://");
-  check(new Uri.http("@:8080", ""), "http://:8080");
-  check(new Uri.http("@:8080"), "http://:8080");
-  check(new Uri.http("@host:", ""), "http://host");
-  check(new Uri.http("@host:"), "http://host");
-  check(new Uri.http("xxx:yyy@host:8080", ""), "http://xxx:yyy@host:8080");
-  check(new Uri.http("host", "a"), "http://host/a");
-  check(new Uri.http("host", "/a"), "http://host/a");
-  check(new Uri.http("host", "a/"), "http://host/a/");
-  check(new Uri.http("host", "/a/"), "http://host/a/");
-  check(new Uri.http("host", "a/b"), "http://host/a/b");
-  check(new Uri.http("host", "/a/b"), "http://host/a/b");
-  check(new Uri.http("host", "a/b/"), "http://host/a/b/");
-  check(new Uri.http("host", "/a/b/"), "http://host/a/b/");
-  check(new Uri.http("host", "a b"), "http://host/a%20b");
-  check(new Uri.http("host", "/a b"), "http://host/a%20b");
-  check(new Uri.http("host", "/a b/"), "http://host/a%20b/");
-  check(new Uri.http("host", "/a%2F"), "http://host/a%252F");
-  check(new Uri.http("host", "/a%2F/"), "http://host/a%252F/");
-  check(new Uri.http("host", "/a/b", {"c": "d"}), "http://host/a/b?c=d");
-  check(
-      new Uri.http("host", "/a/b", {"c=": "&d"}), "http://host/a/b?c%3D=%26d");
-  check(new Uri.http("[::]", "a"), "http://[::]/a");
-  check(new Uri.http("[::127.0.0.1]", "a"), "http://[::127.0.0.1]/a");
-  check(new Uri.http('[fe80::8eae:4c4d:fee9:8434%rename3]', ''),
-      'http://[fe80::8eae:4c4d:fee9:8434%25rename3]');
-  check(new Uri.http('[ff02::1%1%41]', ''), 'http://[ff02::1%251a]');
-  check(new Uri.http('[ff02::1%321]', ''), 'http://[ff02::1%25321]');
-  check(new Uri.http('[ff02::1%%321]', ''), 'http://[ff02::1%2521]');
-}
-
-void testHttpsUri() {
-  void check(Uri uri, String expected) {
-    Expect.equals(expected, uri.toString());
-  }
-
-  check(new Uri.https("", ""), "https:");
-  check(new Uri.https("@:", ""), "https://");
-  check(new Uri.https("@:8080", ""), "https://:8080");
-  check(new Uri.https("@host:", ""), "https://host");
-  check(new Uri.https("@host:", ""), "https://host");
-  check(new Uri.https("xxx:yyy@host:8080", ""), "https://xxx:yyy@host:8080");
-  check(new Uri.https("host", "a"), "https://host/a");
-  check(new Uri.https("host", "/a"), "https://host/a");
-  check(new Uri.https("host", "a/"), "https://host/a/");
-  check(new Uri.https("host", "/a/"), "https://host/a/");
-  check(new Uri.https("host", "a/b"), "https://host/a/b");
-  check(new Uri.https("host", "/a/b"), "https://host/a/b");
-  check(new Uri.https("host", "a/b/"), "https://host/a/b/");
-  check(new Uri.https("host", "/a/b/"), "https://host/a/b/");
-  check(new Uri.https("host", "a b"), "https://host/a%20b");
-  check(new Uri.https("host", "/a b"), "https://host/a%20b");
-  check(new Uri.https("host", "/a b/"), "https://host/a%20b/");
-  check(new Uri.https("host", "/a%2F"), "https://host/a%252F");
-  check(new Uri.https("host", "/a%2F/"), "https://host/a%252F/");
-  check(new Uri.https("host", "/a/b", {"c": "d"}), "https://host/a/b?c=d");
-  check(new Uri.https("host", "/a/b", {"c=": "&d"}),
-      "https://host/a/b?c%3D=%26d");
-  check(new Uri.https("[::]", "a"), "https://[::]/a");
-  check(new Uri.https("[::127.0.0.1]", "a"), "https://[::127.0.0.1]/a");
-}
-
-void testResolveHttpScheme() {
-  String s = "//myserver:1234/path/some/thing";
-  Uri uri = Uri.parse(s);
-  Uri http = new Uri(scheme: "http");
-  Uri https = new Uri(scheme: "https");
-  Expect.equals("http:$s", http.resolveUri(uri).toString());
-  Expect.equals("https:$s", https.resolveUri(uri).toString());
-}
-
-void testQuery() {
-  var uri = Uri.http("example.com", "a/b", <String, dynamic>{
-    "a": "b",
-    "c": ["d", "e"]
-  });
-  Expect.equals(uri.toString(), "http://example.com/a/b?a=b&c=d&c=e");
-  Expect.listEquals(uri.queryParametersAll["c"], ["d", "e"]);
-
-  uri = Uri.https("example.com", "a/b", <String, dynamic>{
-    "a": "b",
-    "c": ["d", "e"]
-  });
-  Expect.equals(uri.toString(), "https://example.com/a/b?a=b&c=d&c=e");
-  Expect.listEquals(uri.queryParametersAll["c"], ["d", "e"]);
-
-  uri = Uri.http("example.com", "a/b", {
-    "a b c": ["d e", "f g"]
-  });
-  Expect.equals(uri.toString(), "http://example.com/a/b?a+b+c=d+e&a+b+c=f+g");
-  uri = Uri.https("example.com", "a/b", {
-    "a b c": ["d e", "f g"]
-  });
-  Expect.equals(uri.toString(), "https://example.com/a/b?a+b+c=d+e&a+b+c=f+g");
-}
-
-main() {
-  testHttpUri();
-  testHttpsUri();
-  testResolveHttpScheme();
-  testQuery();
-}
diff --git a/tests/corelib_2/uri_ipv4_test.dart b/tests/corelib_2/uri_ipv4_test.dart
deleted file mode 100644
index d2780b533e2..00000000000
--- a/tests/corelib_2/uri_ipv4_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-void testParseIPv4Address() {
-  void pass(String host, List<int> out) {
-    Expect.listEquals(Uri.parseIPv4Address(host), out);
-  }
-
-  void fail(String host) {
-    Expect.throwsFormatException(() => Uri.parseIPv4Address(host));
-  }
-
-  pass('127.0.0.1', [127, 0, 0, 1]);
-  pass('128.0.0.1', [128, 0, 0, 1]);
-  pass('255.255.255.255', [255, 255, 255, 255]);
-  pass('0.0.0.0', [0, 0, 0, 0]);
-  fail('127.0.0.-1');
-  fail('255.255.255.256');
-  fail('0.0.0.0.');
-  fail('0.0.0.0.0');
-  fail('a.0.0.0');
-  fail('0.0..0');
-}
-
-void main() {
-  testParseIPv4Address();
-}
diff --git a/tests/corelib_2/uri_ipv6_test.dart b/tests/corelib_2/uri_ipv6_test.dart
deleted file mode 100644
index 8bd10bdbedf..00000000000
--- a/tests/corelib_2/uri_ipv6_test.dart
+++ /dev/null
@@ -1,219 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-void testValidIpv6Uri() {
-  var path = 'http://[::1]:1234/path?query=5#now';
-  var uri = Uri.parse(path);
-  Expect.equals('http', uri.scheme);
-  Expect.equals('::1', uri.host);
-  Expect.equals(1234, uri.port);
-  Expect.equals('/path', uri.path);
-  Expect.equals('query=5', uri.query);
-  Expect.equals('now', uri.fragment);
-  Expect.equals(path, uri.toString());
-
-  path = 'http://[FEDC:BA98:7654:3210:FEDC:BA98:7654:3210]:8080/index.html';
-  uri = Uri.parse(path);
-  Expect.equals('http', uri.scheme);
-  Expect.equals('fedc:ba98:7654:3210:fedc:ba98:7654:3210', uri.host);
-  Expect.equals(8080, uri.port);
-  Expect.equals('/index.html', uri.path);
-  Expect.equals(path.toLowerCase(), uri.toString());
-
-  path = 'http://[FEDC:BA98:7654:3210:FEDC:BA98:7654:3210]:80/index.html';
-  uri = Uri.parse(path);
-  Expect.equals('http', uri.scheme);
-  Expect.equals('fedc:ba98:7654:3210:fedc:ba98:7654:3210', uri.host);
-  Expect.equals(80, uri.port);
-  Expect.equals('/index.html', uri.path);
-  Expect.equals('http://[fedc:ba98:7654:3210:fedc:ba98:7654:3210]/index.html',
-      uri.toString());
-
-  path = 'https://[FEDC:BA98:7654:3210:FEDC:BA98:7654:3210]:443/index.html';
-  uri = Uri.parse(path);
-  Expect.equals('https', uri.scheme);
-  Expect.equals('fedc:ba98:7654:3210:fedc:ba98:7654:3210', uri.host);
-  Expect.equals(443, uri.port);
-  Expect.equals('/index.html', uri.path);
-  Expect.equals('https://[fedc:ba98:7654:3210:fedc:ba98:7654:3210]/index.html',
-      uri.toString());
-
-  path = 'http://[1080:0:0:0:8:800:200C:417A]/index.html';
-  uri = Uri.parse(path);
-  Expect.equals('http', uri.scheme);
-  Expect.equals('1080:0:0:0:8:800:200c:417a', uri.host);
-  Expect.equals(80, uri.port);
-  Expect.equals('/index.html', uri.path);
-  Expect.equals(path.toLowerCase(), uri.toString());
-
-  path = 'http://[3ffe:2a00:100:7031::1]';
-  uri = Uri.parse(path);
-  Expect.equals('http', uri.scheme);
-  Expect.equals('3ffe:2a00:100:7031::1', uri.host);
-  Expect.equals(80, uri.port);
-  Expect.equals('', uri.path);
-  Expect.equals(path, uri.toString());
-
-  path = 'http://[1080::8:800:200C:417A]/foo';
-  uri = Uri.parse(path);
-  Expect.equals('http', uri.scheme);
-  Expect.equals('1080::8:800:200c:417a', uri.host);
-  Expect.equals(80, uri.port);
-  Expect.equals('/foo', uri.path);
-  Expect.equals(path.toLowerCase(), uri.toString());
-
-  path = 'http://[::192.9.5.5]/ipng';
-  uri = Uri.parse(path);
-  Expect.equals('http', uri.scheme);
-  Expect.equals('::192.9.5.5', uri.host);
-  Expect.equals(80, uri.port);
-  Expect.equals('/ipng', uri.path);
-  Expect.equals(path, uri.toString());
-
-  path = 'http://[::FFFF:129.144.52.38]:8080/index.html';
-  uri = Uri.parse(path);
-  Expect.equals('http', uri.scheme);
-  Expect.equals('::ffff:129.144.52.38', uri.host);
-  Expect.equals(8080, uri.port);
-  Expect.equals('/index.html', uri.path);
-  Expect.equals(path.toLowerCase(), uri.toString());
-
-  path = 'http://[::FFFF:129.144.52.38]:80/index.html';
-  uri = Uri.parse(path);
-  Expect.equals('http', uri.scheme);
-  Expect.equals('::ffff:129.144.52.38', uri.host);
-  Expect.equals(80, uri.port);
-  Expect.equals('/index.html', uri.path);
-  Expect.equals('http://[::ffff:129.144.52.38]/index.html', uri.toString());
-
-  path = 'https://[::FFFF:129.144.52.38]:443/index.html';
-  uri = Uri.parse(path);
-  Expect.equals('https', uri.scheme);
-  Expect.equals('::ffff:129.144.52.38', uri.host);
-  Expect.equals(443, uri.port);
-  Expect.equals('/index.html', uri.path);
-  Expect.equals('https://[::ffff:129.144.52.38]/index.html', uri.toString());
-
-  path = 'http://[2010:836B:4179::836B:4179]';
-  uri = Uri.parse(path);
-  Expect.equals('http', uri.scheme);
-  Expect.equals('2010:836b:4179::836b:4179', uri.host);
-  Expect.equals(80, uri.port);
-  Expect.equals('', uri.path);
-  Expect.equals(path.toLowerCase(), uri.toString());
-
-  // Checks for ZoneID in RFC 6874
-  path = 'https://[fe80::a%en1]:443/index.html';
-  uri = Uri.parse(path);
-  Expect.equals('https', uri.scheme);
-  Expect.equals('fe80::a%25en1', uri.host);
-  Expect.equals(443, uri.port);
-  Expect.equals('/index.html', uri.path);
-  Expect.equals('https://[fe80::a%25en1]/index.html', uri.toString());
-
-  path = 'https://[fe80::a%25eE1]:443/index.html';
-  uri = Uri.parse(path);
-  Expect.equals('https', uri.scheme);
-  Expect.equals('fe80::a%25eE1', uri.host);
-  Expect.equals(443, uri.port);
-  Expect.equals('/index.html', uri.path);
-  Expect.equals('https://[fe80::a%25eE1]/index.html', uri.toString());
-
-  // Recognize bare '%' and transform into '%25'
-  path = 'https://[fe80::a%1]:443/index.html';
-  uri = Uri.parse(path);
-  Expect.equals('https', uri.scheme);
-  Expect.equals('fe80::a%251', uri.host);
-  Expect.equals(443, uri.port);
-  Expect.equals('/index.html', uri.path);
-  Expect.equals('https://[fe80::a%251]/index.html', uri.toString());
-
-  path = 'https://[ff02::5678%pvc1.3]/index.html';
-  uri = Uri.parse(path);
-  Expect.equals('https', uri.scheme);
-  Expect.equals('ff02::5678%25pvc1.3', uri.host);
-  Expect.equals('/index.html', uri.path);
-  Expect.equals('https://[ff02::5678%25pvc1.3]/index.html', uri.toString());
-
-  // ZoneID contains percent encoded
-  path = 'https://[ff02::1%%321]/index.html';
-  uri = Uri.parse(path);
-  Expect.equals('https', uri.scheme);
-  Expect.equals('ff02::1%2521', uri.host);
-  Expect.equals('/index.html', uri.path);
-  Expect.equals('https://[ff02::1%2521]/index.html', uri.toString());
-
-  path = 'https://[ff02::1%321]/index.html';
-  uri = Uri.parse(path);
-  Expect.equals('https', uri.scheme);
-  Expect.equals('ff02::1%25321', uri.host);
-  Expect.equals('/index.html', uri.path);
-  Expect.equals('https://[ff02::1%25321]/index.html', uri.toString());
-
-  // Lower cases
-  path = 'https://[ff02::1%1%41]/index.html';
-  uri = Uri.parse(path);
-  Expect.equals('https', uri.scheme);
-  Expect.equals('ff02::1%251a', uri.host);
-  Expect.equals('/index.html', uri.path);
-  Expect.equals('https://[ff02::1%251a]/index.html', uri.toString());
-
-  path = 'https://[fe80::8eae:4c4d:fee9:8434%rename3]/index.html';
-  uri = Uri.parse(path);
-  Expect.equals('https', uri.scheme);
-  Expect.equals('fe80::8eae:4c4d:fee9:8434%25rename3', uri.host);
-  Expect.equals('/index.html', uri.path);
-  Expect.equals('https://[fe80::8eae:4c4d:fee9:8434%25rename3]/index.html',
-      uri.toString());
-
-  // Test constructors with host name
-  uri = Uri(scheme: 'https', host: '[ff02::5678%pvc1.3]');
-  uri = Uri(scheme: 'https', host: '[fe80::a%1]');
-  uri = Uri(scheme: 'https', host: '[fe80::a%25eE1]');
-  uri = Uri(scheme: 'https', host: '[fe80::a%en1]');
-}
-
-void testParseIPv6Address() {
-  void pass(String host, List<int> expected) {
-    Expect.listEquals(expected, Uri.parseIPv6Address(host));
-  }
-
-  void fail(String host) {
-    Expect.throwsFormatException(() => Uri.parseIPv6Address(host));
-  }
-
-  pass('::127.0.0.1', [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 127, 0, 0, 1]);
-  pass('0::127.0.0.1', [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 127, 0, 0, 1]);
-  pass('::', [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]);
-  pass('0::', [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]);
-  fail(':0::127.0.0.1');
-  fail('0:::');
-  fail(':::');
-  fail('::0:');
-  fail('::0::');
-  fail('::0::0');
-  fail('00000::0');
-  fail('-1::0');
-  fail('-AAA::0');
-  fail('0::127.0.0.1:0');
-  fail('0::127.0.0');
-  pass('0::1111', [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 17, 17]);
-  pass('2010:836B:4179::836B:4179',
-      [32, 16, 131, 107, 65, 121, 0, 0, 0, 0, 0, 0, 131, 107, 65, 121]);
-  fail('2010:836B:4179:0000:127.0.0.1');
-  fail('2010:836B:4179:0000:0000:127.0.0.1');
-  fail('2010:836B:4179:0000:0000:0000::127.0.0.1');
-  fail('2010:836B:4179:0000:0000:0000:0000:127.0.0.1');
-  pass('2010:836B:4179:0000:0000:0000:127.0.0.1',
-      [32, 16, 131, 107, 65, 121, 0, 0, 0, 0, 0, 0, 127, 0, 0, 1]);
-}
-
-void main() {
-  testValidIpv6Uri();
-  testParseIPv6Address();
-}
diff --git a/tests/corelib_2/uri_normalize_path_test.dart b/tests/corelib_2/uri_normalize_path_test.dart
deleted file mode 100644
index 9c4ce4e2edc..00000000000
--- a/tests/corelib_2/uri_normalize_path_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library uriNormalizePathTest;
-
-import "package:expect/expect.dart";
-
-test(String path, String normalizedPath) {
-  for (var scheme in ["http", "file", "unknown"]) {
-    for (var auth in [
-      [null, "hostname", null],
-      ["userinfo", "hostname", 1234],
-      [null, null, null]
-    ]) {
-      for (var query in [null, "query"]) {
-        for (var fragment in [null, "fragment"]) {
-          var base = new Uri(
-              scheme: scheme,
-              userInfo: auth[0],
-              host: auth[1],
-              port: auth[2],
-              path: path,
-              query: query,
-              fragment: fragment);
-          var expected = base.replace(
-              path: (base.hasAuthority && normalizedPath.isEmpty)
-                  ? "/"
-                  : normalizedPath);
-          var actual = base.normalizePath();
-          Expect.equals(expected, actual, "$base");
-        }
-      }
-    }
-  }
-}
-
-testNoChange(String path) {
-  test(path, path);
-}
-
-main() {
-  testNoChange("foo/bar/baz");
-  testNoChange("/foo/bar/baz");
-  testNoChange("foo/bar/baz/");
-  test("foo/bar/..", "foo/");
-  test("foo/bar/.", "foo/bar/");
-  test("foo/./bar/../baz", "foo/baz");
-  test("../../foo", "foo");
-  test("./../foo", "foo");
-  test("./../", "");
-  test("./../.", "");
-  test("foo/bar/baz/../../../../qux", "/qux");
-  test("/foo/bar/baz/../../../../qux", "/qux");
-  test(".", "");
-  test("..", "");
-  test("/.", "/");
-  test("/..", "/");
-}
diff --git a/tests/corelib_2/uri_normalize_test.dart b/tests/corelib_2/uri_normalize_test.dart
deleted file mode 100644
index 5a978404682..00000000000
--- a/tests/corelib_2/uri_normalize_test.dart
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-testNormalizePath() {
-  test(String expected, String path, {String scheme, String host}) {
-    var uri = new Uri(scheme: scheme, host: host, path: path);
-    Expect.equals(expected, uri.toString());
-    if (scheme == null && host == null) {
-      Expect.equals(expected, uri.path);
-    }
-  }
-
-  var unreserved = "-._~0123456789"
-      "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-      "abcdefghijklmnopqrstuvwxyz";
-
-  test("A", "%41");
-  test("AB", "%41%42");
-  test("%40AB", "%40%41%42");
-  test("a", "%61");
-  test("ab", "%61%62");
-  test("%60ab", "%60%61%62");
-  test(unreserved, unreserved);
-
-  var x = new StringBuffer();
-  for (int i = 32; i < 128; i++) {
-    if (unreserved.indexOf(new String.fromCharCode(i)) != -1) {
-      x.writeCharCode(i);
-    } else {
-      x.write("%");
-      x.write(i.toRadixString(16));
-    }
-  }
-  Expect.equals(x.toString().toUpperCase(),
-      new Uri(path: x.toString()).toString().toUpperCase());
-
-  // Normalized paths.
-
-  // Full absolute path normalization for absolute paths.
-  test("/a/b/c/", "/../a/./b/z/../c/d/..");
-  test("/a/b/c/", "/./a/b/c/");
-  test("/a/b/c/", "/./../a/b/c/");
-  test("/a/b/c/", "/./../a/b/c/.");
-  test("/a/b/c/", "/./../a/b/c/z/./..");
-  test("/", "/a/..");
-  // Full absolute path normalization for URIs with scheme.
-  test("s:a/b/c/", "../a/./b/z/../c/d/..", scheme: "s");
-  test("s:a/b/c/", "./a/b/c/", scheme: "s");
-  test("s:a/b/c/", "./../a/b/c/", scheme: "s");
-  test("s:a/b/c/", "./../a/b/c/.", scheme: "s");
-  test("s:a/b/c/", "./../a/b/c/z/./..", scheme: "s");
-  test("s:/", "/a/..", scheme: "s");
-  test("s:/", "a/..", scheme: "s");
-  // Full absolute path normalization for URIs with authority.
-  test("//h/a/b/c/", "../a/./b/z/../c/d/..", host: "h");
-  test("//h/a/b/c/", "./a/b/c/", host: "h");
-  test("//h/a/b/c/", "./../a/b/c/", host: "h");
-  test("//h/a/b/c/", "./../a/b/c/.", host: "h");
-  test("//h/a/b/c/", "./../a/b/c/z/./..", host: "h");
-  test("//h/", "/a/..", host: "h");
-  test("//h/", "a/..", host: "h");
-  // Partial relative normalization (allowing leading .. or ./ for current dir).
-  test("../a/b/c/", "../a/./b/z/../c/d/..");
-  test("a/b/c/", "./a/b/c/");
-  test("../a/b/c/", "./../a/b/c/");
-  test("../a/b/c/", "./../a/b/c/.");
-  test("../a/b/c/", "./../a/b/c/z/./..");
-  test("/", "/a/..");
-  test("./", "a/..");
-}
-
-main() {
-  testNormalizePath();
-}
diff --git a/tests/corelib_2/uri_parameters_all_test.dart b/tests/corelib_2/uri_parameters_all_test.dart
deleted file mode 100644
index b540a701da1..00000000000
--- a/tests/corelib_2/uri_parameters_all_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:convert';
-
-main() {
-  testAll(["a", "b", "c"]);
-  testAll([""]);
-  testAll(["a"]);
-  testAll(["", ""]);
-  testAll(["baz"]);
-
-  testParse("z&y&w&z", {
-    "z": ["", ""],
-    "y": [""],
-    "w": [""]
-  });
-  testParse("x=42&y=42&x=37&y=37", {
-    "x": ["42", "37"],
-    "y": ["42", "37"]
-  });
-  testParse("x&x&x&x&x", {
-    "x": ["", "", "", "", ""]
-  });
-  testParse("x=&&y", {
-    "x": [""],
-    "y": [""]
-  });
-}
-
-testAll(List values) {
-  var uri =
-      new Uri(scheme: "foo", path: "bar", queryParameters: {"baz": values});
-  var list = uri.queryParametersAll["baz"];
-  Expect.listEquals(values, list);
-}
-
-testParse(query, results) {
-  var uri = new Uri(scheme: "foo", path: "bar", query: query);
-  var params = uri.queryParametersAll;
-  for (var k in results.keys) {
-    Expect.listEquals(results[k], params[k]);
-  }
-  uri = new Uri(scheme: "foo", path: "bar", queryParameters: results);
-  params = uri.queryParametersAll;
-  for (var k in results.keys) {
-    Expect.listEquals(results[k], params[k]);
-  }
-}
diff --git a/tests/corelib_2/uri_parse_test.dart b/tests/corelib_2/uri_parse_test.dart
deleted file mode 100644
index 6fdced31648..00000000000
--- a/tests/corelib_2/uri_parse_test.dart
+++ /dev/null
@@ -1,74 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void testUriCombi() {
-  var schemes = ["", "file", "ws", "ftp"];
-  var fragments = ["", "#", "#f", "#fragment", "#l:?/"];
-  var queries = ["", "?", "?q", "?query", "?q:/"];
-  var paths = ["/", "/x", "/x/y", "/x/y/", "/x:y", "x", "x/y", "x/y/"];
-  var userInfos = ["", "x", "xxx", "x:4", "xxx:444", "x:4:x"];
-  var hosts = ["", "h", "hhh", "h:4", "hhh:444", "[::1.2.3.4]"];
-
-  void check(uriString, scheme, fragment, query, path, user, host) {
-    for (var uri in [
-      Uri.parse(uriString),
-      Uri.parse(">\u{10000}>$uriString<\u{10000}<", 4, uriString.length + 4),
-      Uri.parse(
-          "http://example.com/$uriString#?:/[]\"", 19, uriString.length + 19),
-      Uri.parse(uriString * 3, uriString.length, uriString.length * 2)
-    ]) {
-      String name = "$uriString -> $uri";
-      Expect.equals(scheme, uri.scheme, name);
-      var uriFragment = uri.fragment;
-      if (fragment.startsWith('#')) uriFragment = "#$uriFragment";
-      Expect.equals(fragment, uriFragment, name);
-      var uriQuery = uri.query;
-      if (query.startsWith('?')) uriQuery = "?$uriQuery";
-      Expect.equals(query, uriQuery, name);
-      Expect.equals(path, uri.path, name);
-      Expect.equals(user, uri.userInfo, name);
-      var uriHost = uri.host;
-      if (host.startsWith("[")) uriHost = "[$uriHost]";
-      if (uri.port != 0) uriHost += ":${uri.port}";
-      Expect.equals(host, uriHost, name);
-    }
-  }
-
-  for (var scheme in schemes) {
-    for (var fragment in fragments) {
-      for (var query in queries) {
-        for (var path in paths) {
-          // File scheme URIs always get a leading slash.
-          if (scheme == "file" && !path.startsWith('/')) continue;
-          for (var user in userInfos) {
-            for (var host in hosts) {
-              var auth = host;
-              var s = scheme;
-              if (user.isNotEmpty) auth = "$user@$auth";
-              if (auth.isNotEmpty) auth = "//$auth";
-              if (auth.isNotEmpty && !path.startsWith('/')) continue;
-              check(
-                  "$scheme${scheme.isEmpty ? "" : ":"}"
-                  "$auth$path$query$fragment",
-                  scheme,
-                  fragment,
-                  query,
-                  path,
-                  user,
-                  host);
-            }
-          }
-        }
-      }
-    }
-  }
-}
-
-void main() {
-  testUriCombi();
-}
diff --git a/tests/corelib_2/uri_path_test.dart b/tests/corelib_2/uri_path_test.dart
deleted file mode 100644
index 984c44e1778..00000000000
--- a/tests/corelib_2/uri_path_test.dart
+++ /dev/null
@@ -1,188 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:collection";
-
-import "package:expect/expect.dart";
-
-void testInvalidArguments() {}
-
-void testPath() {
-  void test(s, uri) {
-    Expect.equals(s, uri.toString());
-    Expect.equals(uri, Uri.parse(s));
-  }
-
-  test("http:", new Uri(scheme: "http"));
-  test("http://host/xxx", new Uri(scheme: "http", host: "host", path: "xxx"));
-  test("http://host/xxx", new Uri(scheme: "http", host: "host", path: "/xxx"));
-  test("http://host/xxx",
-      new Uri(scheme: "http", host: "host", pathSegments: ["xxx"]));
-  test("http://host/xxx/yyy",
-      new Uri(scheme: "http", host: "host", path: "xxx/yyy"));
-  test("http://host/xxx/yyy",
-      new Uri(scheme: "http", host: "host", path: "/xxx/yyy"));
-  test("http://host/xxx/yyy",
-      new Uri(scheme: "http", host: "host", pathSegments: ["xxx", "yyy"]));
-
-  test("urn:", new Uri(scheme: "urn"));
-  test("urn:xxx", new Uri(scheme: "urn", path: "xxx"));
-  test("urn:xxx:yyy", new Uri(scheme: "urn", path: "xxx:yyy"));
-
-  Expect.equals(3, new Uri(path: "xxx/yyy/zzz").pathSegments.length);
-  Expect.equals(3, new Uri(path: "/xxx/yyy/zzz").pathSegments.length);
-  Expect.equals(3, Uri.parse("http://host/xxx/yyy/zzz").pathSegments.length);
-  Expect.equals(3, Uri.parse("file:///xxx/yyy/zzz").pathSegments.length);
-}
-
-void testPathSegments() {
-  void test(String path, List<String> segments) {
-    void check(uri) {
-      Expect.equals(path, uri.path);
-      Expect.equals(path, uri.toString());
-      Expect.listEquals(segments, uri.pathSegments);
-    }
-
-    var uri1 = new Uri(pathSegments: segments);
-    var uri2 = new Uri(path: path);
-    check(uri1);
-    check(uri2);
-    Expect.equals(uri1, uri2);
-  }
-
-  test("", []);
-  test("%20", [" "]);
-  test("%20/%20%20", [" ", "  "]);
-  test("A", ["A"]);
-  test("%C3%B8", ["ø"]);
-  test("%C3%B8/%C3%A5", ["ø", "å"]);
-  test("%C8%A4/%E5%B9%B3%E4%BB%AE%E5%90%8D", ["Ȥ", "平仮名"]);
-  test("A/b", ["A", "b"]);
-  test("A/%25", ["A", "%"]);
-  test("%2F/a%2Fb", ["/", "a/b"]);
-  test("name;v=1.1", ["name;v=1.1"]);
-  test("name,v=1.1", ["name,v=1.1"]);
-  test("name;v=1.1/name,v=1.1", ["name;v=1.1", "name,v=1.1"]);
-
-  var unreserved = "-._~0123456789"
-      "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-      "abcdefghijklmnopqrstuvwxyz";
-  var subDelimiters = r"!$&'()*+,;=";
-  var additionalPathChars = ":@";
-  var pchar = unreserved + subDelimiters + additionalPathChars;
-
-  var encoded = new StringBuffer();
-  var unencoded = new StringBuffer();
-  for (int i = 32; i < 128; i++) {
-    if (pchar.indexOf(new String.fromCharCode(i)) != -1) {
-      encoded.writeCharCode(i);
-    } else {
-      encoded.write("%");
-      encoded.write(i.toRadixString(16).toUpperCase());
-    }
-    unencoded.writeCharCode(i);
-  }
-  var encodedStr = encoded.toString();
-  var unencodedStr = unencoded.toString();
-  test(encodedStr, [unencodedStr]);
-  test(encodedStr + "/" + encodedStr, [unencodedStr, unencodedStr]);
-
-  Uri uri;
-  var pathSegments = ["xxx", "yyy", "zzz"];
-
-  uri = new Uri(pathSegments: pathSegments);
-  Expect.equals(3, uri.pathSegments.length);
-  uri = new Uri(pathSegments: pathSegments.where((_) => true));
-  Expect.equals(3, uri.pathSegments.length);
-  uri = new Uri(pathSegments: new DoubleLinkedQueue.from(pathSegments));
-  Expect.equals(3, uri.pathSegments.length);
-
-  uri = new Uri(scheme: "http", host: "host", pathSegments: pathSegments);
-  Expect.equals(3, uri.pathSegments.length);
-  uri = new Uri(
-      scheme: "http",
-      host: "host",
-      pathSegments: pathSegments.where((_) => true));
-  Expect.equals(3, uri.pathSegments.length);
-  uri = new Uri(
-      scheme: "http",
-      host: "host",
-      pathSegments: new DoubleLinkedQueue.from(pathSegments));
-  Expect.equals(3, uri.pathSegments.length);
-
-  uri = new Uri(scheme: "file", pathSegments: pathSegments);
-  Expect.equals(3, uri.pathSegments.length);
-  uri = new Uri(scheme: "file", pathSegments: pathSegments.where((_) => true));
-  Expect.equals(3, uri.pathSegments.length);
-  uri = new Uri(
-      scheme: "file", pathSegments: new DoubleLinkedQueue.from(pathSegments));
-  Expect.equals(3, uri.pathSegments.length);
-}
-
-void testPathCompare() {
-  void test(Uri uri1, Uri uri2) {
-    Expect.equals(uri1, uri2);
-    Expect.equals(uri2, uri1);
-  }
-
-  test(new Uri(scheme: "http", host: "host", path: "xxx"),
-      new Uri(scheme: "http", host: "host", path: "/xxx"));
-  test(new Uri(scheme: "http", host: "host", pathSegments: ["xxx"]),
-      new Uri(scheme: "http", host: "host", path: "/xxx"));
-  test(new Uri(scheme: "http", host: "host", pathSegments: ["xxx"]),
-      new Uri(scheme: "http", host: "host", path: "xxx"));
-  test(new Uri(scheme: "file", path: "xxx"),
-      new Uri(scheme: "file", path: "/xxx"));
-  test(new Uri(scheme: "file", pathSegments: ["xxx"]),
-      new Uri(scheme: "file", path: "/xxx"));
-  test(new Uri(scheme: "file", pathSegments: ["xxx"]),
-      new Uri(scheme: "file", path: "xxx"));
-}
-
-testPathSegmentsUnmodifiableList() {
-  void test(list) {
-    Expect.equals("a", list[0]);
-    Expect.throwsUnsupportedError(() => list[0] = "c");
-    Expect.equals(2, list.length);
-    Expect.throwsUnsupportedError(() => list.length = 1);
-    Expect.throwsUnsupportedError(() => list.add("c"));
-    Expect.throwsUnsupportedError(() => list.addAll(["c", "d"]));
-    Expect.listEquals(["b", "a"], list.reversed.toList());
-    Expect.throws(() => list.sort());
-    Expect.equals(0, list.indexOf("a"));
-    Expect.equals(0, list.lastIndexOf("a"));
-    Expect.throwsUnsupportedError(() => list.clear());
-    Expect.throwsUnsupportedError(() => list.insert(1, "c"));
-    Expect.throwsUnsupportedError(() => list.insertAll(1, ["c", "d"]));
-    Expect.throwsUnsupportedError(() => list.setAll(1, ["c", "d"]));
-    Expect.throwsUnsupportedError(() => list.remove("a"));
-    Expect.throwsUnsupportedError(() => list.removeAt(0));
-    Expect.throwsUnsupportedError(() => list.removeLast());
-    Expect.throwsUnsupportedError(() => list.removeWhere((e) => true));
-    Expect.throwsUnsupportedError(() => list.retainWhere((e) => false));
-    Expect.listEquals(["a"], list.sublist(0, 1));
-    Expect.listEquals(["a"], list.getRange(0, 1).toList());
-    Expect.throwsUnsupportedError(() => list.setRange(0, 1, ["c"]));
-    Expect.throwsUnsupportedError(() => list.removeRange(0, 1));
-    Expect.throwsUnsupportedError(() => list.fillRange(0, 1, "c"));
-    Expect.throwsUnsupportedError(() => list.replaceRange(0, 1, ["c"]));
-    Map map = new Map();
-    map[0] = "a";
-    map[1] = "b";
-    Expect.mapEquals(list.asMap(), map);
-  }
-
-  test(Uri.parse("a/b").pathSegments);
-  test(new Uri(pathSegments: ["a", "b"]).pathSegments);
-}
-
-main() {
-  testInvalidArguments();
-  testPath();
-  testPathSegments();
-  testPathCompare();
-  testPathSegmentsUnmodifiableList();
-}
diff --git a/tests/corelib_2/uri_query_test.dart b/tests/corelib_2/uri_query_test.dart
deleted file mode 100644
index 6684cc457fc..00000000000
--- a/tests/corelib_2/uri_query_test.dart
+++ /dev/null
@@ -1,182 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void testInvalidArguments() {}
-
-void testEncodeQueryComponent() {
-  // This exact data is from posting a form in Chrome 26 with the one
-  // exception that * is encoded as %30 and ~ is not encoded as %7E.
-  Expect.equals(
-      "%21%22%23%24%25%26%27%28%29%2A%2B%2C-.%2F%"
-      "3A%3B%3C%3D%3E%3F%40%5B%5C%5D%5E_%60%7B%7C%7D~",
-      Uri.encodeQueryComponent("!\"#\$%&'()*+,-./:;<=>?@[\\]^_`{|}~"));
-  Expect.equals("+%2B+", Uri.encodeQueryComponent(" + "));
-  Expect.equals("%2B+%2B", Uri.encodeQueryComponent("+ +"));
-}
-
-void testQueryParameters() {
-  test(String query, Map<String, String> parameters, [String normalizedQuery]) {
-    if (normalizedQuery == null) normalizedQuery = query;
-    check(uri) {
-      Expect.isTrue(uri.hasQuery);
-      Expect.equals(normalizedQuery, uri.query);
-      Expect.equals("?$normalizedQuery", uri.toString());
-      if (parameters.containsValue(null)) {
-        var map = new Map.from(parameters);
-        map.forEach((k, v) {
-          if (v == null) map[k] = "";
-        });
-        Expect.mapEquals(map, uri.queryParameters);
-      } else {
-        Expect.mapEquals(parameters, uri.queryParameters);
-      }
-    }
-
-    var uri1 = new Uri(queryParameters: parameters);
-    var uri2 = new Uri(query: query);
-    var uri3 = Uri.parse("?$query");
-    check(uri1);
-    if (query != "") {
-      check(uri2);
-    } else {
-      Expect.isFalse(uri2.hasQuery);
-    }
-    check(uri3);
-    Expect.equals(uri1, uri3);
-    if (query != "") Expect.equals(uri2, uri3);
-    if (parameters.containsValue(null)) {
-      var map = new Map.from(parameters);
-      map.forEach((k, v) {
-        if (v == null) map[k] = "";
-      });
-      Expect.mapEquals(map, Uri.splitQueryString(query));
-    } else {
-      Expect.mapEquals(parameters, Uri.splitQueryString(query));
-    }
-  }
-
-  test("", {});
-  test("A", {"A": null});
-  test("%25", {"%": null});
-  test("%41", {"A": null}, "A");
-  test("%41A", {"AA": null}, "AA");
-  test("A", {"A": ""});
-  test("%25", {"%": ""});
-  test("%41", {"A": ""}, "A");
-  test("%41A", {"AA": ""}, "AA");
-  test("A=a", {"A": "a"});
-  test("%25=a", {"%": "a"});
-  test("%41=%61", {"A": "a"}, "A=a");
-  test("A=+", {"A": " "});
-  test("A=%2B", {"A": "+"});
-  test("A=a&B", {"A": "a", "B": null});
-  test("A=a&B", {"A": "a", "B": ""});
-  test("A=a&B=b", {"A": "a", "B": "b"});
-  test("%41=%61&%42=%62", {"A": "a", "B": "b"}, "A=a&B=b");
-
-  var unreserved = "-._~0123456789"
-      "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-      "abcdefghijklmnopqrstuvwxyz";
-  var encoded = new StringBuffer();
-  var allEncoded = new StringBuffer();
-  var unencoded = new StringBuffer();
-  for (int i = 32; i < 128; i++) {
-    if (i == 32) {
-      encoded.write("+");
-    } else if (unreserved.indexOf(new String.fromCharCode(i)) != -1) {
-      encoded.writeCharCode(i);
-    } else {
-      encoded.write("%");
-      encoded.write(i.toRadixString(16).toUpperCase());
-    }
-    if (i == 32) {
-      allEncoded.write("+");
-    } else {
-      allEncoded.write("%");
-      allEncoded.write(i.toRadixString(16).toUpperCase());
-    }
-    unencoded.writeCharCode(i);
-  }
-  var encodedStr = encoded.toString();
-  var unencodedStr = unencoded.toString();
-  test("a=$encodedStr", {"a": unencodedStr});
-  test("a=$encodedStr&b=$encodedStr", {"a": unencodedStr, "b": unencodedStr});
-
-  var map = <String, String>{};
-  map[unencodedStr] = unencodedStr;
-  test("$encodedStr=$encodedStr", map);
-  test("$encodedStr=$allEncoded", map, "$encodedStr=$encodedStr");
-  test("$allEncoded=$encodedStr", map, "$encodedStr=$encodedStr");
-  test("$allEncoded=$allEncoded", map, "$encodedStr=$encodedStr");
-  map[unencodedStr] = null;
-  test("$encodedStr", map);
-  map[unencodedStr] = "";
-  test("$encodedStr", map);
-}
-
-testInvalidQueryParameters() {
-  test(String query, Map<String, String> parameters) {
-    check(uri) {
-      Expect.equals(query, uri.query);
-      if (query.isEmpty) {
-        Expect.equals(query, uri.toString());
-      } else {
-        Expect.equals("?$query", uri.toString());
-      }
-      if (parameters.containsValue(null)) {} else {
-        Expect.mapEquals(parameters, uri.queryParameters);
-      }
-    }
-
-    var uri1 = new Uri(query: query);
-    var uri2 = Uri.parse("?$query");
-    check(uri1);
-    check(uri2);
-    Expect.equals(uri1, uri2);
-  }
-
-  test("=", {});
-  test("=xxx", {});
-  test("===", {});
-  test("=xxx=yyy=zzz", {});
-  test("=&=&=", {});
-  test("=xxx&=yyy&=zzz", {});
-  test("&=&=&", {});
-  test("&=xxx&=xxx&", {});
-}
-
-testQueryParametersImmutableMap() {
-  test(map) {
-    Expect.isTrue(map.containsValue("b"));
-    Expect.isTrue(map.containsKey("a"));
-    Expect.equals("b", map["a"]);
-    Expect.throwsUnsupportedError(() => map["a"] = "c");
-    Expect.throwsUnsupportedError(() => map.putIfAbsent("b", () => "e"));
-    Expect.throwsUnsupportedError(() => map.remove("a"));
-    Expect.throwsUnsupportedError(() => map.clear());
-    var count = 0;
-    map.forEach((key, value) => count++);
-    Expect.equals(2, count);
-    Expect.equals(2, map.keys.length);
-    Expect.equals(2, map.values.length);
-    Expect.equals(2, map.length);
-    Expect.isFalse(map.isEmpty);
-    Expect.isTrue(map.isNotEmpty);
-  }
-
-  test(Uri.parse("?a=b&c=d").queryParameters);
-  test(new Uri(queryParameters: {"a": "b", "c": "d"}).queryParameters);
-}
-
-main() {
-  testInvalidArguments();
-  testEncodeQueryComponent();
-  testQueryParameters();
-  testInvalidQueryParameters();
-  testQueryParametersImmutableMap();
-}
diff --git a/tests/corelib_2/uri_scheme_test.dart b/tests/corelib_2/uri_scheme_test.dart
deleted file mode 100644
index 1e5b03c6154..00000000000
--- a/tests/corelib_2/uri_scheme_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void testInvalidArguments() {
-  Expect.throwsFormatException(() => new Uri(scheme: "_"));
-  Expect.throwsFormatException(() => new Uri(scheme: "http_s"));
-  Expect.throwsFormatException(() => new Uri(scheme: "127.0.0.1:80"));
-}
-
-void testScheme() {
-  test(String expectedScheme, String expectedUri, String scheme) {
-    var uri = new Uri(scheme: scheme);
-    Expect.equals(expectedScheme, uri.scheme);
-    Expect.equals(expectedUri, uri.toString());
-    uri = Uri.parse("$scheme:");
-    Expect.equals(expectedScheme, uri.scheme);
-    Expect.equals(expectedUri, uri.toString());
-  }
-
-  test("http", "http:", "http");
-  test("http", "http:", "HTTP");
-  test("http", "http:", "hTTP");
-  test("http", "http:", "Http");
-  test("http+ssl", "http+ssl:", "HTTP+ssl");
-  test("urn", "urn:", "urn");
-  test("urn", "urn:", "UrN");
-  test("a123.432", "a123.432:", "a123.432");
-}
-
-main() {
-  testInvalidArguments();
-  testScheme();
-}
diff --git a/tests/corelib_2/uri_test.dart b/tests/corelib_2/uri_test.dart
deleted file mode 100644
index e9249050b99..00000000000
--- a/tests/corelib_2/uri_test.dart
+++ /dev/null
@@ -1,817 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library uriTest;
-
-import "package:expect/expect.dart";
-import 'dart:convert';
-
-testUri(String uriText, bool isAbsolute) {
-  var uri = Uri.parse(uriText);
-
-  Expect.equals(isAbsolute, uri.isAbsolute);
-  Expect.stringEquals(uriText, uri.toString());
-
-  // Test equals and hashCode members.
-  var uri2 = Uri.parse(uriText);
-  Expect.equals(uri, uri2);
-  Expect.equals(uri.hashCode, uri2.hashCode);
-
-  // Test that removeFragment doesn't change anything else.
-  if (uri.hasFragment) {
-    Expect.equals(Uri.parse(uriText.substring(0, uriText.indexOf('#'))),
-        uri.removeFragment());
-  } else {
-    Expect.equals(uri, Uri.parse(uriText + "#fragment").removeFragment());
-  }
-}
-
-testEncodeDecode(String orig, String encoded) {
-  var e = Uri.encodeFull(orig);
-  Expect.stringEquals(encoded, e);
-  var d = Uri.decodeFull(encoded);
-  Expect.stringEquals(orig, d);
-}
-
-testEncodeDecodeComponent(String orig, String encoded) {
-  var e = Uri.encodeComponent(orig);
-  Expect.stringEquals(encoded, e);
-  var d = Uri.decodeComponent(encoded);
-  Expect.stringEquals(orig, d);
-}
-
-testEncodeDecodeQueryComponent(String orig, String encodedUTF8,
-    String encodedLatin1, String encodedAscii) {
-  var e, d;
-  e = Uri.encodeQueryComponent(orig);
-  Expect.stringEquals(encodedUTF8, e);
-  d = Uri.decodeQueryComponent(encodedUTF8);
-  Expect.stringEquals(orig, d);
-
-  e = Uri.encodeQueryComponent(orig, encoding: utf8);
-  Expect.stringEquals(encodedUTF8, e);
-  d = Uri.decodeQueryComponent(encodedUTF8, encoding: utf8);
-  Expect.stringEquals(orig, d);
-
-  e = Uri.encodeQueryComponent(orig, encoding: latin1);
-  Expect.stringEquals(encodedLatin1, e);
-  d = Uri.decodeQueryComponent(encodedLatin1, encoding: latin1);
-  Expect.stringEquals(orig, d);
-
-  if (encodedAscii != null) {
-    e = Uri.encodeQueryComponent(orig, encoding: ascii);
-    Expect.stringEquals(encodedAscii, e);
-    d = Uri.decodeQueryComponent(encodedAscii, encoding: ascii);
-    Expect.stringEquals(orig, d);
-  } else {
-    Expect.throwsArgumentError(
-        () => Uri.encodeQueryComponent(orig, encoding: ascii));
-  }
-}
-
-testUriPerRFCs() {
-  final urisSample = "http://a/b/c/d;p?q";
-  Uri base = Uri.parse(urisSample);
-  testResolve(expect, relative) {
-    Expect.stringEquals(expect, base.resolve(relative).toString());
-  }
-
-  // From RFC 3986.
-  testResolve("g:h", "g:h");
-  testResolve("http://a/b/c/g", "g");
-  testResolve("http://a/b/c/g", "./g");
-  testResolve("http://a/b/c/g/", "g/");
-  testResolve("http://a/g", "/g");
-  testResolve("http://g", "//g");
-  testResolve("http://a/b/c/d;p?y", "?y");
-  testResolve("http://a/b/c/g?y", "g?y");
-  testResolve("http://a/b/c/d;p?q#s", "#s");
-  testResolve("http://a/b/c/g#s", "g#s");
-  testResolve("http://a/b/c/g?y#s", "g?y#s");
-  testResolve("http://a/b/c/;x", ";x");
-  testResolve("http://a/b/c/g;x", "g;x");
-  testResolve("http://a/b/c/g;x?y#s", "g;x?y#s");
-  testResolve("http://a/b/c/d;p?q", "");
-  testResolve("http://a/b/c/", ".");
-  testResolve("http://a/b/c/", "./");
-  testResolve("http://a/b/", "..");
-  testResolve("http://a/b/", "../");
-  testResolve("http://a/b/g", "../g");
-  testResolve("http://a/", "../..");
-  testResolve("http://a/", "../../");
-  testResolve("http://a/g", "../../g");
-  testResolve("http://a/g", "../../../g");
-  testResolve("http://a/g", "../../../../g");
-  testResolve("http://a/g", "/./g");
-  testResolve("http://a/g", "/../g");
-  testResolve("http://a/b/c/g.", "g.");
-  testResolve("http://a/b/c/.g", ".g");
-  testResolve("http://a/b/c/g..", "g..");
-  testResolve("http://a/b/c/..g", "..g");
-  testResolve("http://a/b/g", "./../g");
-  testResolve("http://a/b/c/g/", "./g/.");
-  testResolve("http://a/b/c/g/h", "g/./h");
-  testResolve("http://a/b/c/h", "g/../h");
-  testResolve("http://a/b/c/g;x=1/y", "g;x=1/./y");
-  testResolve("http://a/b/c/y", "g;x=1/../y");
-  testResolve("http://a/b/c/g?y/./x", "g?y/./x");
-  testResolve("http://a/b/c/g?y/../x", "g?y/../x");
-  testResolve("http://a/b/c/g#s/./x", "g#s/./x");
-  testResolve("http://a/b/c/g#s/../x", "g#s/../x");
-  testResolve("http:g", "http:g");
-
-  // Additional tests (not from RFC 3986).
-  testResolve("http://a/b/g;p/h;s", "../g;p/h;s");
-
-  // Test non-URI base (no scheme, no authority, relative path).
-  base = Uri.parse("a/b/c?_#_");
-  testResolve("a/b/g?q#f", "g?q#f");
-  testResolve("../", "../../..");
-  testResolve("a/b/", ".");
-  testResolve("c", "../../c");
-
-  base = Uri.parse("s:a/b");
-  testResolve("s:/c", "../c");
-}
-
-void testResolvePath(String expected, String path) {
-  Expect.equals(
-      expected, new Uri(path: '/').resolveUri(new Uri(path: path)).path);
-  Expect.equals("http://localhost$expected",
-      Uri.parse("http://localhost").resolveUri(new Uri(path: path)).toString());
-}
-
-const ALPHA = r"abcdefghijklmnopqrstuvwxuzABCDEFGHIJKLMNOPQRSTUVWXUZ";
-const DIGIT = r"0123456789";
-const PERCENT_ENCODED = "%00%ff";
-const SUBDELIM = r"!$&'()*+,;=";
-
-const SCHEMECHAR = "$ALPHA$DIGIT+-.";
-const UNRESERVED = "$ALPHA$DIGIT-._~";
-const REGNAMECHAR = "$UNRESERVED$SUBDELIM$PERCENT_ENCODED";
-const USERINFOCHAR = "$REGNAMECHAR:";
-
-const PCHAR_NC = "$UNRESERVED$SUBDELIM$PERCENT_ENCODED@";
-const PCHAR = "$PCHAR_NC:";
-const QUERYCHAR = "$PCHAR/?";
-
-void testValidCharacters() {
-  // test that all valid characters are accepted.
-
-  for (var scheme in ["", "$SCHEMECHAR$SCHEMECHAR:"]) {
-    for (var userinfo in [
-      "",
-      "@",
-      "$USERINFOCHAR$USERINFOCHAR@",
-      "$USERINFOCHAR:$DIGIT@"
-    ]) {
-      for (var host in [
-        "", "$REGNAMECHAR$REGNAMECHAR",
-        "255.255.255.256", // valid reg-name.
-        "[ffff::ffff:ffff]", "[ffff::255.255.255.255]"
-      ]) {
-        for (var port in ["", ":", ":$DIGIT$DIGIT"]) {
-          var auth = "$userinfo$host$port";
-          if (auth.isNotEmpty) auth = "//$auth";
-          var paths = ["", "/", "/$PCHAR", "/$PCHAR/"]; // Absolute or empty.
-          if (auth.isNotEmpty) {
-            // Initial segment may be empty.
-            paths..add("//$PCHAR");
-          } else {
-            // Path may begin with non-slash.
-            if (scheme.isEmpty) {
-              // Initial segment must not contain colon.
-              paths
-                ..add(PCHAR_NC)
-                ..add("$PCHAR_NC/$PCHAR")
-                ..add("$PCHAR_NC/$PCHAR/");
-            } else {
-              paths..add(PCHAR)..add("$PCHAR/$PCHAR")..add("$PCHAR/$PCHAR/");
-            }
-          }
-          for (var path in paths) {
-            for (var query in ["", "?", "?$QUERYCHAR"]) {
-              for (var fragment in ["", "#", "#$QUERYCHAR"]) {
-                var uri = "$scheme$auth$path$query$fragment";
-                // Should not throw.
-                var result = Uri.parse(uri);
-              }
-            }
-          }
-        }
-      }
-    }
-  }
-}
-
-void testInvalidUrls() {
-  void checkInvalid(uri) {
-    try {
-      var result = Uri.parse(uri);
-      Expect.fail("Invalid URI `$uri` parsed to $result\n" + dump(result));
-    } on FormatException {
-      // Success.
-    }
-  }
-
-  checkInvalid("s%41://x.x/"); //      No escapes in scheme,
-  //                                   and no colon before slash in path.
-  checkInvalid("1a://x.x/"); //        Scheme must start with letter,
-  //                                   and no colon before slash in path.
-  checkInvalid(".a://x.x/"); //        Scheme must start with letter,
-  //                                   and no colon before slash in path.
-  checkInvalid("_:"); //               Character not valid in scheme,
-  //                                   and no colon before slash in path.
-  checkInvalid(":"); //                Scheme must start with letter,
-  //                                   and no colon before slash in path.
-
-  void checkInvalidReplaced(uri, invalid, replacement) {
-    var source = uri.replaceAll('{}', invalid);
-    var expected = uri.replaceAll('{}', replacement);
-    var result = Uri.parse(source);
-    Expect.equals(expected, "$result", "Source: $source\n${dump(result)}");
-  }
-
-  // Regression test for http://dartbug.com/16081
-  checkInvalidReplaced(
-      "http://www.example.org/red%09ros{}#red)", "\u00e9", "%C3%A9");
-  checkInvalidReplaced("http://r{}sum\{}.example.org", "\u00E9", "%C3%A9");
-
-  // Invalid characters. The characters must be rejected, even if normalizing
-  // the input would cause them to be valid (normalization happens after
-  // validation).
-  var invalidCharsAndReplacements = [
-    "\xe7", "%C3%A7", //       Arbitrary non-ASCII letter
-    " ", "%20", //          Space, not allowed anywhere.
-    '"', "%22", //          Quote, not allowed anywhere
-    "<>", "%3C%3E", //       Less/greater-than, not allowed anywhere.
-    "\x7f", "%7F", //          DEL, not allowed anywhere
-    "\xdf", "%C3%9F", //       German lower-case scharf-S.
-    //                              Becomes ASCII when upper-cased.
-    "\u0130", "%C4%B0", //       Latin capital dotted I,
-    //                              becomes ASCII lower-case in Turkish.
-    "%\uFB03", "%25%EF%AC%83", // % + Ligature ffi,
-    //                              becomes ASCII when upper-cased,
-    //                              should not be read as "%FFI".
-    "\u212a", "%E2%84%AA", //    Kelvin sign. Becomes ASCII when lower-cased.
-    "%1g", "%251g", //        Invalid escape.
-    "\u{10000}", "%F0%90%80%80", // Non-BMP character as surrogate pair.
-  ];
-  for (int i = 0; i < invalidCharsAndReplacements.length; i += 2) {
-    var invalid = invalidCharsAndReplacements[i];
-    var valid = invalidCharsAndReplacements[i + 1];
-    checkInvalid("A{}b:///".replaceAll('{}', invalid));
-    checkInvalid("{}b:///".replaceAll('{}', invalid));
-    checkInvalidReplaced("s://user{}info@x.x/", invalid, valid);
-    checkInvalidReplaced("s://reg{}name/", invalid, valid);
-    checkInvalid("s://regname:12{}45/".replaceAll("{}", invalid));
-    checkInvalidReplaced("s://regname/p{}ath/", invalid, valid);
-    checkInvalidReplaced("/p{}ath/", invalid, valid);
-    checkInvalidReplaced("p{}ath/", invalid, valid);
-    checkInvalidReplaced("s://regname/path/?x{}x", invalid, valid);
-    checkInvalidReplaced("s://regname/path/#x{}x", invalid, valid);
-    checkInvalidReplaced("s://regname/path/??#x{}x", invalid, valid);
-  }
-
-  // At most one @ in userinfo.
-  checkInvalid("s://x@x@x.x/");
-  // No colon in host except before a port.
-  checkInvalid("s://x@x:x/");
-  // At most one port.
-  checkInvalid("s://x@x:9:9/");
-  // @ not allowed in scheme.
-  checkInvalid("s@://x:9/x?x#x");
-  // ] not allowed alone in host.
-  checkInvalid("s://xx]/");
-  // IPv6 must be enclosed in [ and ] for Uri.parse.
-  // It is allowed un-enclosed as argument to `Uri(host:...)` because we don't
-  // need to delimit.
-  checkInvalid("s://ffff::ffff:1234/");
-}
-
-void testNormalization() {
-  // The Uri constructor and the Uri.parse function performs RFC-3986
-  // syntax based normalization.
-
-  var uri;
-
-  // Scheme: Only case normalization. Schemes cannot contain escapes.
-  uri = Uri.parse("A:");
-  Expect.equals("a", uri.scheme);
-  uri = Uri.parse("Z:");
-  Expect.equals("z", uri.scheme);
-  uri = Uri.parse("$SCHEMECHAR:");
-  Expect.equals(SCHEMECHAR.toLowerCase(), uri.scheme);
-
-  // Percent escape normalization.
-  // Escapes of unreserved characters are converted to the character,
-  // subject to case normalization in reg-name.
-  for (var i = 0; i < UNRESERVED.length; i++) {
-    var char = UNRESERVED[i];
-    var escape = "%" + char.codeUnitAt(0).toRadixString(16); // all > 0xf.
-
-    uri = Uri.parse("s://xX${escape}xX@yY${escape}yY/zZ${escape}zZ"
-        "?vV${escape}vV#wW${escape}wW");
-    Expect.equals("xX${char}xX", uri.userInfo);
-    Expect.equals("yY${char}yY".toLowerCase(), uri.host);
-    Expect.equals("/zZ${char}zZ", uri.path);
-    Expect.equals("vV${char}vV", uri.query);
-    Expect.equals("wW${char}wW", uri.fragment);
-  }
-
-  // Escapes of reserved characters are kept, but upper-cased.
-  for (var escape in ["%00", "%1f", "%7F", "%fF"]) {
-    uri = Uri.parse("s://xX${escape}xX@yY${escape}yY/zZ${escape}zZ"
-        "?vV${escape}vV#wW${escape}wW");
-    var normalizedEscape = escape.toUpperCase();
-    Expect.equals("xX${normalizedEscape}xX", uri.userInfo);
-    Expect.equals("yy${normalizedEscape}yy", uri.host);
-    Expect.equals("/zZ${normalizedEscape}zZ", uri.path);
-    Expect.equals("vV${normalizedEscape}vV", uri.query);
-    Expect.equals("wW${normalizedEscape}wW", uri.fragment);
-  }
-
-  // Some host normalization edge cases.
-  uri = Uri.parse("x://x%61X%41x%41X%61x/");
-  Expect.equals("xaxaxaxax", uri.host);
-
-  uri = Uri.parse("x://Xxxxxxxx/");
-  Expect.equals("xxxxxxxx", uri.host);
-
-  uri = Uri.parse("x://xxxxxxxX/");
-  Expect.equals("xxxxxxxx", uri.host);
-
-  uri = Uri.parse("x://xxxxxxxx%61/");
-  Expect.equals("xxxxxxxxa", uri.host);
-
-  uri = Uri.parse("x://%61xxxxxxxx/");
-  Expect.equals("axxxxxxxx", uri.host);
-
-  uri = Uri.parse("x://X/");
-  Expect.equals("x", uri.host);
-
-  uri = Uri.parse("x://%61/");
-  Expect.equals("a", uri.host);
-
-  uri = new Uri(scheme: "x", path: "//y");
-  Expect.equals("//y", uri.path);
-  Expect.equals("x:////y", uri.toString());
-
-  uri = new Uri(scheme: "file", path: "//y");
-  Expect.equals("//y", uri.path);
-  Expect.equals("file:////y", uri.toString());
-
-  // File scheme noralizes to always showing authority, even if empty.
-  uri = new Uri(scheme: "file", path: "/y");
-  Expect.equals("file:///y", uri.toString());
-  uri = new Uri(scheme: "file", path: "y");
-  Expect.equals("file:///y", uri.toString());
-
-  // Empty host/query/fragment ensures the delimiter is there.
-  // Different from not being there.
-  Expect.equals("scheme:/", Uri.parse("scheme:/").toString());
-  Expect.equals("scheme:/", new Uri(scheme: "scheme", path: "/").toString());
-
-  Expect.equals("scheme:///?#", Uri.parse("scheme:///?#").toString());
-  Expect.equals(
-      "scheme:///#",
-      new Uri(scheme: "scheme", host: "", path: "/", query: "", fragment: "")
-          .toString());
-
-  // We allow, and escape, general delimiters in paths, queries and fragments.
-  // Allow `[` and `]` in path:
-  Expect.equals("s:/%5B%5D", Uri.parse("s:/[]").toString());
-  Expect.equals("s:%5B%5D", Uri.parse("s:[]").toString());
-  Expect.equals("%5B%5D", Uri.parse("[]").toString());
-  // Allow `[`, `]` and `?` in query (anything after *first* `?`).
-  // The `?` is not escaped.
-  Expect.equals("s://xx/?%5B%5D?", Uri.parse("s://xx/?[]?").toString());
-  // Allow `[`, `]`, `?` and `#` in fragment (anything after *first* `#`).
-  // The `?` is not escaped.
-  Expect.equals("s://xx/#%5B%5D%23?", Uri.parse("s://xx/#[]#?").toString());
-}
-
-void testReplace() {
-  var uris = [
-    Uri.parse(""),
-    Uri.parse("a://@:/?#"),
-    Uri.parse("a://b@c:4/e/f?g#h"),
-    Uri.parse("$SCHEMECHAR://$USERINFOCHAR@$REGNAMECHAR:$DIGIT/$PCHAR/$PCHAR"
-        "?$QUERYCHAR#$QUERYCHAR"),
-  ];
-  for (var uri1 in uris) {
-    for (var uri2 in uris) {
-      if (identical(uri1, uri2)) continue;
-      var scheme = uri1.scheme;
-      var userInfo = uri1.hasAuthority ? uri1.userInfo : "";
-      var host = uri1.hasAuthority ? uri1.host : null;
-      var port = uri1.hasAuthority ? uri1.port : 0;
-      var path = uri1.path;
-      var query = uri1.hasQuery ? uri1.query : null;
-      var fragment = uri1.hasFragment ? uri1.fragment : null;
-
-      var tmp1 = uri1;
-
-      void test() {
-        var tmp2 = new Uri(
-            scheme: scheme,
-            userInfo: userInfo,
-            host: host,
-            port: port,
-            path: path,
-            query: query == "" ? null : query,
-            queryParameters: query == "" ? {} : null,
-            fragment: fragment);
-        Expect.equals(tmp1, tmp2);
-      }
-
-      test();
-
-      scheme = uri2.scheme;
-      tmp1 = tmp1.replace(scheme: scheme);
-      test();
-
-      if (uri2.hasAuthority) {
-        userInfo = uri2.userInfo;
-        host = uri2.host;
-        port = uri2.port;
-        tmp1 = tmp1.replace(userInfo: userInfo, host: host, port: port);
-        test();
-      }
-
-      path = uri2.path;
-      tmp1 = tmp1.replace(path: path);
-      test();
-
-      if (uri2.hasQuery) {
-        query = uri2.query;
-        tmp1 = tmp1.replace(query: query);
-        test();
-      }
-
-      if (uri2.hasFragment) {
-        fragment = uri2.fragment;
-        tmp1 = tmp1.replace(fragment: fragment);
-        test();
-      }
-    }
-  }
-
-  // Regression test, http://dartbug.com/20814
-  var uri = Uri.parse("/no-authority/");
-  uri = uri.replace(fragment: "fragment");
-  Expect.isFalse(uri.hasAuthority);
-
-  uri = new Uri(scheme: "foo", path: "bar");
-  uri = uri.replace(queryParameters: {
-    "x": ["42", "37"],
-    "y": ["43", "38"]
-  });
-  var params = uri.queryParametersAll;
-  Expect.equals(2, params.length);
-  Expect.listEquals(["42", "37"], params["x"]);
-  Expect.listEquals(["43", "38"], params["y"]);
-}
-
-void testPackageUris() {
-  // A URI is recognized as a package URI if it has:
-  // * "package" as scheme
-  // * no authority
-  // * a first path segment
-  //     * containing no `%`,
-  //     * which is not all "." characters,
-  //     * and which ends with a `/`.
-  //
-  // If so, the package name is unaffected by path resolution.
-  var uri = Uri.parse("package:foo/bar/baz"); // Simple base URI.
-
-  Expect.stringEquals("package:foo/qux", // Resolve simple URI.
-      uri.resolve("../../qux").toString());
-
-  Expect.stringEquals("package:foo/qux",
-      uri.resolve("/qux").toString());
-
-  Expect.stringEquals("package:foo/qux?%2F", // Resolve non-simple URI.
-      uri.resolve("../../qux?%2F").toString());
-
-  Expect.stringEquals("package:foo/qux?%2F",
-      uri.resolve("/qux?%2F").toString());
-
-  uri = Uri.parse("package:foo/%62ar/baz"); // Non-simple base URI.
-
-  Expect.stringEquals("package:foo/qux", // Resolve simple URI.
-      uri.resolve("../../qux").toString());
-
-  Expect.stringEquals("package:foo/qux",
-      uri.resolve("/qux").toString());
-
-  Expect.stringEquals("package:foo/qux?%2F", // Resolve non-simple URI.
-      uri.resolve("../../qux?%2F").toString());
-
-  Expect.stringEquals("package:foo/qux?%2F",
-      uri.resolve("/qux?%2F").toString());
-
-  // The following base URIs are not recognized as package URIs:
-  uri = Uri.parse("puckage:foo/bar/baz"); // Not "package" scheme.
-
-  Expect.stringEquals("puckage:/qux",
-      uri.resolve("../../qux").toString());
-
-  Expect.stringEquals("puckage:/qux",
-      uri.resolve("/qux").toString());
-
-  uri = Uri.parse("package://foo/bar/baz"); // Has authority.
-
-  Expect.stringEquals("package://foo/qux",
-      uri.resolve("../../qux").toString());
-
-  Expect.stringEquals("package://foo/qux",
-      uri.resolve("/qux").toString());
-
-  uri = Uri.parse("package:/foo/bar/baz"); // Has empty package name.
-
-  Expect.stringEquals("package:/qux",
-      uri.resolve("../../qux").toString());
-
-  Expect.stringEquals("package:/qux",
-      uri.resolve("/qux").toString());
-
-  uri = Uri.parse("package:f%2fo/bar/baz"); // Has escape in package name.
-
-  Expect.stringEquals("package:/qux",
-      uri.resolve("../../qux").toString());
-
-  Expect.stringEquals("package:/qux",
-      uri.resolve("/qux").toString());
-
-  uri = Uri.parse("package:f:o/bar/baz"); // Has colon in package name.
-
-  Expect.stringEquals("package:/qux",
-      uri.resolve("../../qux").toString());
-
-  Expect.stringEquals("package:/qux",
-      uri.resolve("/qux").toString());
-
-  uri = Uri.parse("package:.../bar/baz"); // Has only '.' in package name.
-
-  Expect.stringEquals("package:/qux",
-      uri.resolve("../../qux").toString());
-
-  Expect.stringEquals("package:/qux",
-      uri.resolve("/qux").toString());
-
-  uri = Uri.parse("package:foo?/"); // Has no `/` after package name.
-
-  // Resolving relative against non-absolute path gives
-  // a non-absolute path again.
-  // TODO(lrn): Is this a bug?
-  Expect.stringEquals("package:qux",
-      uri.resolve("../../qux").toString());
-
-  Expect.stringEquals("package:/qux",
-      uri.resolve("/qux").toString());
-}
-
-void testBackslashes() {
-  // Tests change which makes `\` be treated as `/` in
-  // authority and path.
-
-  Expect.stringEquals("https://example.com/",
-      Uri.parse(r"https:\\example.com\").toString());
-
-  Expect.stringEquals("https://example.com/",
-      Uri.parse(r"https:\/example.com/").toString());
-  Expect.stringEquals("https://example.com/",
-      Uri.parse(r"https:/\example.com/").toString());
-  Expect.stringEquals("https://example.com/",
-      Uri.parse(r"https://example.com/").toString());
-  Expect.stringEquals("https://example.com/foo//bar",
-      Uri.parse(r"https://example.com/foo\\bar").toString());
-
-  Expect.stringEquals("https:/example.com/foo?%5C#%5C",
-      Uri.parse(r"https:\example.com/foo?\#\").toString());
-
-  Expect.stringEquals("https://example.com/@example.net/foo",
-      Uri.parse(r"https://example.com\@example.net/foo").toString());
-
-  Expect.stringEquals("file:///foo",
-      Uri.parse(r"file:foo").toString());
-  Expect.stringEquals("file:///foo",
-      Uri.parse(r"file:\foo").toString());
-  Expect.stringEquals("file://foo/",
-      Uri.parse(r"file:\\foo").toString());
-  Expect.stringEquals("file:///foo",
-      Uri.parse(r"file:\\\foo").toString());
-  Expect.stringEquals("file:///foo",
-      Uri.parse(r"file:\//foo").toString());
-  Expect.stringEquals("file:///foo",
-      Uri.parse(r"file:/\/foo").toString());
-  Expect.stringEquals("file:///foo",
-      Uri.parse(r"file://\foo").toString());
-
-  // No scheme.
-  Expect.stringEquals("//example.com/foo",
-      Uri.parse(r"\\example.com\foo").toString());
-
-  // No authority.
-  Expect.stringEquals("http:/foo",
-      Uri.parse(r"http:\foo").toString());
-
-  /// No scheme or authority.
-
-  Expect.stringEquals("foo/bar/baz",
-      Uri.parse(r"foo\bar\baz").toString());
-
-  Expect.stringEquals("foo/bar/baz",
-      Uri.parse(r"foo\bar\.\baz").toString());
-
-  Expect.stringEquals("foo/baz",
-      Uri.parse(r"foo\bar\..\baz").toString());
-
-  // Not converted to / in query or fragment, still escaped.
-  Expect.stringEquals("https://example.com/foo?%5C#%5C",
-      Uri.parse(r"https://example.com/foo?\#\").toString());
-
-  // Applies when a path is provided, but not when using path segments.
-  Expect.stringEquals("https://example.com/foo/bar",
-    Uri(scheme: "https", host: "example.com", path: r"\foo\bar").toString());
-
-  Expect.stringEquals("https://example.com/foo%5Cbar",
-    Uri(scheme: "https", host: "example.com", pathSegments: [r"foo\bar"])
-        .toString());
-
-  // Does not apply to constructors which expect an unencoded path.
-  Expect.stringEquals("http://example.com/%5Cfoo%5Cbar",
-      Uri.http("example.com", r"\foo\bar").toString());
-  Expect.stringEquals("https://example.com/%5Cfoo%5Cbar",
-      Uri.https("example.com", r"\foo\bar").toString());
-}
-
-main() {
-  testUri("http:", true);
-  testUri("file:///", true);
-  testUri("file", false);
-  testUri("http://user@example.com:8080/fisk?query=89&hest=silas", true);
-  testUri(
-      "http://user@example.com:8080/fisk?query=89&hest=silas#fragment", false);
-  Expect.stringEquals(
-      "http://user@example.com/a/b/c?query#fragment",
-      new Uri(
-              scheme: "http",
-              userInfo: "user",
-              host: "example.com",
-              port: 80,
-              path: "/a/b/c",
-              query: "query",
-              fragment: "fragment")
-          .toString());
-  Expect.stringEquals(
-      "/a/b/c/",
-      new Uri(
-              scheme: null,
-              userInfo: null,
-              host: null,
-              port: 0,
-              path: "/a/b/c/",
-              query: null,
-              fragment: null)
-          .toString());
-  Expect.stringEquals("file:///", Uri.parse("file:").toString());
-
-  testResolvePath("/a/g", "/a/b/c/./../../g");
-  testResolvePath("/a/g", "/a/b/c/./../../g");
-  testResolvePath("/mid/6", "mid/content=5/../6");
-  testResolvePath("/a/b/e", "a/b/c/d/../../e");
-  testResolvePath("/a/b/e", "../a/b/c/d/../../e");
-  testResolvePath("/a/b/e", "./a/b/c/d/../../e");
-  testResolvePath("/a/b/e", "../a/b/./c/d/../../e");
-  testResolvePath("/a/b/e", "./a/b/./c/d/../../e");
-  testResolvePath("/a/b/e/", "./a/b/./c/d/../../e/.");
-  testResolvePath("/a/b/e/", "./a/b/./c/d/../../e/./.");
-  testResolvePath("/a/b/e/", "./a/b/./c/d/../../e/././.");
-
-  testUriPerRFCs();
-
-  Expect.stringEquals(
-      "http://example.com", Uri.parse("http://example.com/a/b/c").origin);
-  Expect.stringEquals(
-      "https://example.com", Uri.parse("https://example.com/a/b/c").origin);
-  Expect.stringEquals("http://example.com:1234",
-      Uri.parse("http://example.com:1234/a/b/c").origin);
-  Expect.stringEquals("https://example.com:1234",
-      Uri.parse("https://example.com:1234/a/b/c").origin);
-  Expect.throwsStateError(() => Uri.parse("http:").origin,
-      "origin for uri with empty host should fail");
-  Expect.throwsStateError(
-      () => new Uri(
-              scheme: "http",
-              userInfo: null,
-              host: "",
-              port: 80,
-              path: "/a/b/c",
-              query: "query",
-              fragment: "fragment")
-          .origin,
-      "origin for uri with empty host should fail");
-  Expect.throwsStateError(
-      () => new Uri(
-              scheme: null,
-              userInfo: null,
-              host: "",
-              port: 80,
-              path: "/a/b/c",
-              query: "query",
-              fragment: "fragment")
-          .origin,
-      "origin for uri with empty scheme should fail");
-  Expect.throwsStateError(
-      () => new Uri(
-              scheme: "http",
-              userInfo: null,
-              host: null,
-              port: 80,
-              path: "/a/b/c",
-              query: "query",
-              fragment: "fragment")
-          .origin,
-      "origin for uri with empty host should fail");
-  Expect.throwsStateError(() => Uri.parse("http://:80").origin,
-      "origin for uri with empty host should fail");
-  Expect.throwsStateError(() => Uri.parse("file://localhost/test.txt").origin,
-      "origin for non-http/https uri should fail");
-
-  // URI encode tests
-  // Create a string with code point 0x10000 encoded as a surrogate pair.
-  var s = utf8.decode([0xf0, 0x90, 0x80, 0x80]);
-
-  Expect.stringEquals("\u{10000}", s);
-
-  testEncodeDecode("A + B", "A%20+%20B");
-  testEncodeDecode("\uFFFE", "%EF%BF%BE");
-  testEncodeDecode("\uFFFF", "%EF%BF%BF");
-  testEncodeDecode("\uFFFE", "%EF%BF%BE");
-  testEncodeDecode("\uFFFF", "%EF%BF%BF");
-  testEncodeDecode("\x7f", "%7F");
-  testEncodeDecode("\x80", "%C2%80");
-  testEncodeDecode("\u0800", "%E0%A0%80");
-  // All characters not escaped by encodeFull.
-  var unescapedFull = r"abcdefghijklmnopqrstuvwxyz"
-      r"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-      r"0123456789!#$&'()*+,-./:;=?@_~";
-  // ASCII characters escaped by encodeFull:
-  var escapedFull =
-      "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"
-      "\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"
-      r' "%<>[\]^`{|}'
-      "\x7f";
-  var escapedTo = "%00%01%02%03%04%05%06%07%08%09%0A%0B%0C%0D%0E%0F"
-      "%10%11%12%13%14%15%16%17%18%19%1A%1B%1C%1D%1E%1F"
-      "%20%22%25%3C%3E%5B%5C%5D%5E%60%7B%7C%7D%7F";
-  testEncodeDecode(unescapedFull, unescapedFull);
-  testEncodeDecode(escapedFull, escapedTo);
-  var nonAscii =
-      "\x80-\xff-\u{100}-\u{7ff}-\u{800}-\u{ffff}-\u{10000}-\u{10ffff}";
-  var nonAsciiEncoding = "%C2%80-%C3%BF-%C4%80-%DF%BF-%E0%A0%80-%EF%BF%BF-"
-      "%F0%90%80%80-%F4%8F%BF%BF";
-  testEncodeDecode(nonAscii, nonAsciiEncoding);
-  testEncodeDecode(s, "%F0%90%80%80");
-  testEncodeDecodeComponent("A + B", "A%20%2B%20B");
-  testEncodeDecodeComponent("\uFFFE", "%EF%BF%BE");
-  testEncodeDecodeComponent("\uFFFF", "%EF%BF%BF");
-  testEncodeDecodeComponent("\uFFFE", "%EF%BF%BE");
-  testEncodeDecodeComponent("\uFFFF", "%EF%BF%BF");
-  testEncodeDecodeComponent("\x7f", "%7F");
-  testEncodeDecodeComponent("\x80", "%C2%80");
-  testEncodeDecodeComponent("\u0800", "%E0%A0%80");
-  testEncodeDecodeComponent(":/@',;?&=+\$", "%3A%2F%40'%2C%3B%3F%26%3D%2B%24");
-  testEncodeDecodeComponent(s, "%F0%90%80%80");
-  testEncodeDecodeQueryComponent("A + B", "A+%2B+B", "A+%2B+B", "A+%2B+B");
-  testEncodeDecodeQueryComponent(
-      "æ ø å", "%C3%A6+%C3%B8+%C3%A5", "%E6+%F8+%E5", null);
-  testEncodeDecodeComponent(nonAscii, nonAsciiEncoding);
-
-  // Invalid URI - : and @ is swapped, port ("host") should be numeric.
-  Expect.throwsFormatException(
-      () => Uri.parse("file://user@password:host/path"));
-
-  testValidCharacters();
-  testInvalidUrls();
-  testNormalization();
-  testReplace();
-  testPackageUris();
-  testBackslashes();
-}
-
-String dump(Uri uri) {
-  return "URI: $uri\n"
-      "  Scheme:    ${uri.scheme} #${uri.scheme.length}\n"
-      "  User-info: ${uri.userInfo} #${uri.userInfo.length}\n"
-      "  Host:      ${uri.host} #${uri.host.length}\n"
-      "  Port:      ${uri.port}\n"
-      "  Path:      ${uri.path} #${uri.path.length}\n"
-      "  Query:     ${uri.query} #${uri.query.length}\n"
-      "  Fragment:  ${uri.fragment} #${uri.fragment.length}\n";
-}
diff --git a/tests/corelib_2/very_big_integer_test.dart b/tests/corelib_2/very_big_integer_test.dart
deleted file mode 100644
index 11465f91aec..00000000000
--- a/tests/corelib_2/very_big_integer_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  // x and y have lengths in 32-bit digits that overflow 16 bits.
-  var x = new BigInt.from(13) << (65000 * 32);
-  var y = new BigInt.from(42) << (65000 * 32);
-  print(x.bitLength);
-  Expect.equals(x, (x + y) - y);
-  Expect.equals(x, -((-x + y) - y));
-  Expect.equals(x, (x << 2) >> 2);
-  Expect.equals(x, (x >> 3) << 3);
-  Expect.equals(0, (x ^ x).toInt());
-  Expect.equals(0, (y ^ y).toInt());
-}
diff --git a/tests/corelib_2/weak_mode/README b/tests/corelib_2/weak_mode/README
deleted file mode 100644
index 9da48ae6dd1..00000000000
--- a/tests/corelib_2/weak_mode/README
+++ /dev/null
@@ -1,2 +0,0 @@
-This directory contains tests specific to null safety weak mode
-behavior.
\ No newline at end of file
diff --git a/tests/corelib_2/weak_mode/asyncMap_accepts_null_test.dart b/tests/corelib_2/weak_mode/asyncMap_accepts_null_test.dart
deleted file mode 100644
index d25a21ac93c..00000000000
--- a/tests/corelib_2/weak_mode/asyncMap_accepts_null_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "dart:async";
-import "package:expect/expect.dart";
-
-// Regression test for https://github.com/dart-lang/sdk/issues/41465
-
-void main() {
-  var stream = Stream.fromIterable([1, 2, 3, 4]);
-  var eventsStream =
-      stream.asyncMap((i) => i % 2 == 0 ? i : null).where((i) => i != null);
-  eventsStream.listen(Expect.isNotNull);
-}
diff --git a/tests/corelib_2/weak_mode/future_sync_accepts_null_test.dart b/tests/corelib_2/weak_mode/future_sync_accepts_null_test.dart
deleted file mode 100644
index 79ac0387b77..00000000000
--- a/tests/corelib_2/weak_mode/future_sync_accepts_null_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "dart:async";
-import "package:expect/expect.dart";
-
-// Regression test for https://github.com/dart-lang/sdk/issues/41465
-
-void main() async {
-  var f = Future<int>.sync(() => null);
-  Expect.isNull(await f);
-}
diff --git a/tests/dartdevc_2/assertion_failure_message_test.dart b/tests/dartdevc_2/assertion_failure_message_test.dart
deleted file mode 100644
index f85d05eadca..00000000000
--- a/tests/dartdevc_2/assertion_failure_message_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.6
-
-import "utils.dart";
-
-void main() {
-  try {
-    assert(false, "failure message");
-  } on AssertionError catch (error) {
-    var message = error.toString();
-    expectStringContains('Assertion failed:', message);
-    expectStringContains('assertion_failure_message_test.dart:11:12', message);
-    expectStringContains('false', message);
-    expectStringContains('failure message', message);
-  }
-
-  // 失 All offsets and source code extractions should still be correct after
-  // non-UTF8 characters. See: https://github.com/dart-lang/sdk/issues/39271
-  try {
-    assert(false, "after a non-UTF8 character");
-  } on AssertionError catch (error) {
-    var message = error.toString();
-    expectStringContains('Assertion failed:', message);
-    expectStringContains('assertion_failure_message_test.dart:23:12', message);
-    expectStringContains('false', message);
-    expectStringContains('after a non-UTF8 character', message);
-  }
-}
diff --git a/tests/dartdevc_2/cast_error/lib_a.dart b/tests/dartdevc_2/cast_error/lib_a.dart
deleted file mode 100644
index 0939c6a44ea..00000000000
--- a/tests/dartdevc_2/cast_error/lib_a.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Animal {}
diff --git a/tests/dartdevc_2/cast_error/lib_b.dart b/tests/dartdevc_2/cast_error/lib_b.dart
deleted file mode 100644
index 0939c6a44ea..00000000000
--- a/tests/dartdevc_2/cast_error/lib_b.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Animal {}
diff --git a/tests/dartdevc_2/cast_error/library_uri_in_message_test.dart b/tests/dartdevc_2/cast_error/library_uri_in_message_test.dart
deleted file mode 100644
index c278d15cf46..00000000000
--- a/tests/dartdevc_2/cast_error/library_uri_in_message_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "../utils.dart";
-import "lib_a.dart" as libA;
-import "lib_b.dart" as libB;
-
-void main() {
-  // When the name of the class is the same the error message should include
-  // library URIs for the two classes.
-  var a = libA.Animal();
-  try {
-    a as libB.Animal;
-  } on TypeError catch (error) {
-    var message = error.toString();
-    expectStringContains(
-        "Expected a value of type 'Animal' "
-        "(in org-dartlang-app:/tests/dartdevc_2/cast_error/lib_b.dart)",
-        message);
-    expectStringContains(
-        "but got one of type 'Animal' "
-        "(in org-dartlang-app:/tests/dartdevc_2/cast_error/lib_a.dart)",
-        message);
-  }
-  // Verify the libraries are properly ordered.
-  var b = libB.Animal();
-  try {
-    b as libA.Animal;
-  } on TypeError catch (error) {
-    var message = error.toString();
-    expectStringContains(
-        "Expected a value of type 'Animal' "
-        "(in org-dartlang-app:/tests/dartdevc_2/cast_error/lib_a.dart)",
-        message);
-    expectStringContains(
-        "but got one of type 'Animal' "
-        "(in org-dartlang-app:/tests/dartdevc_2/cast_error/lib_b.dart)",
-        message);
-  }
-
-  // URIs are not displayed when the class names are different.
-  try {
-    a as String;
-  } on TypeError catch (error) {
-    var message = error.toString();
-    expectStringContains(
-        "Expected a value of type 'String', but got one of type 'Animal'",
-        message);
-  }
-}
diff --git a/tests/dartdevc_2/const_test.dart b/tests/dartdevc_2/const_test.dart
deleted file mode 100644
index 63394cf7791..00000000000
--- a/tests/dartdevc_2/const_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.6
-
-import "package:expect/expect.dart";
-import 'dart:_foreign_helper' show JS;
-import 'dart:_runtime' as dart;
-
-void main() {
-  var data = JS('', '[1, 2, 3, 4]');
-  Expect.isFalse(data is List<int>);
-
-  var list = dart.constList(data, dart.unwrapType(int));
-  Expect.isTrue(list is List<int>);
-  Expect.throws(() {
-    list[0] = 0;
-  });
-
-  var set = dart.constSet<int>(data);
-  Expect.isTrue(set is Set<int>);
-  Expect.isTrue(set.contains(3));
-  Expect.throws(() => set.clear());
-
-  var map = dart.constMap<int, int>(data);
-  Expect.isTrue(map is Map<int, int>);
-  Expect.equals(map[1], 2);
-  Expect.throws(() {
-    map[1] = 42;
-  });
-}
diff --git a/tests/dartdevc_2/dartdevc_native_dartdevc.status b/tests/dartdevc_2/dartdevc_native_dartdevc.status
deleted file mode 100644
index 29bea2bba07..00000000000
--- a/tests/dartdevc_2/dartdevc_native_dartdevc.status
+++ /dev/null
@@ -1,5 +0,0 @@
-# Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-
-# Sections in this file should contain "$compiler == ddc".
diff --git a/tests/dartdevc_2/debugger/debugger_test.dart b/tests/dartdevc_2/debugger/debugger_test.dart
deleted file mode 100644
index f3037362fce..00000000000
--- a/tests/dartdevc_2/debugger/debugger_test.dart
+++ /dev/null
@@ -1,367 +0,0 @@
-// @dart = 2.6
-
-/// Debugger custom formatter tests.
-/// If the tests fail, paste the expected output into the [expectedGolden]
-/// string literal in this file and audit the diff to ensure changes are
-/// expected.
-///
-/// Currently only DDC supports debugging objects with custom formatters
-/// but it is reasonable to add support to Dart2JS in the future.
-@JS()
-library debugger_test;
-
-import 'dart:html';
-import 'package:js/js.dart';
-import 'package:js/js_util.dart' as js_util;
-
-import 'package:expect/minitest.dart';
-
-import 'dart:_debugger' as _debugger;
-
-class TestClass {
-  String name = 'test class';
-  int date;
-  static List<int> foo = [1, 2, 3, 4];
-  static String greeting = 'Hello world';
-  static Object bar = new Object();
-
-  static exampleStaticMethod(x) => x * 2;
-
-  TestClass(this.date);
-
-  String nameAndDate() => '$name on day $date';
-
-  int last(List<int> list) => list.last;
-
-  void addOne(String name) {
-    name = '${name}1';
-  }
-
-  get someInt => 42;
-  get someString => "Hello world";
-  get someObject => this;
-
-  Object returnObject() => bar;
-}
-
-class TestGenericClass<X, Y> {
-  TestGenericClass(this.x);
-  X x;
-}
-
-@JS('Object.getOwnPropertyNames')
-external List getOwnPropertyNames(obj);
-
-@JS('devtoolsFormatters')
-external List get _devtoolsFormatters;
-List get devtoolsFormatters => _devtoolsFormatters;
-
-@JS('JSON.stringify')
-external stringify(value, [Function replacer, int space]);
-
-// TODO(jacobr): this is only valid if the legacy library loader is used.
-// We need a solution that works with all library loaders.
-@JS('dart_library.import')
-external importDartLibrary(String path);
-
-@JS('ExampleJSClass')
-class ExampleJSClass<T> {
-  external factory ExampleJSClass(T x);
-  external T get x;
-}
-
-// Replacer normalizes file names that could vary depending on the test runner.
-// styles.
-replacer(String key, value) {
-  // The values for keys with name 'object' may be arbitrary Dart nested
-  // Objects so are not safe to stringify.
-  if (key == 'object') return '<OBJECT>';
-  if (value is String) {
-    if (value.contains('dart_sdk.js')) return '<DART_SDK>';
-    if (new RegExp(r'[.](js|dart|html)').hasMatch(value)) return '<FILE>';
-    // Normalize the name of the `Event` type as it appears in this test.
-    // The new type system preserves the original name from the Dart source.
-    // TODO(48585): Remove when no longer running with the old type system.
-    value = value.replaceAll(r'Event$', 'Event');
-  }
-  return value;
-}
-
-String format(value) {
-  // Avoid double-escaping strings.
-  if (value is String) return value;
-  if (value is Function) value = allowInterop(value as Function);
-  return stringify(value, allowInterop(replacer), 4);
-}
-
-class FormattedObject {
-  FormattedObject(this.object, this.config);
-
-  Object object;
-  Object config;
-}
-
-/// Extract all object tags from a json ml expression to enable
-/// calling the custom formatter on the extracted object tag.
-List<FormattedObject> extractNestedFormattedObjects(json) {
-  var ret = <FormattedObject>[];
-  if (json is String || json is bool || json is num) return ret;
-  if (json is List) {
-    for (var e in json) {
-      ret.addAll(extractNestedFormattedObjects(e));
-    }
-    return ret;
-  }
-
-  for (var name in getOwnPropertyNames(json)) {
-    if (name == 'object') {
-      // Found a nested formatted object.
-      ret.add(new FormattedObject(js_util.getProperty(json, 'object'),
-          js_util.getProperty(json, 'config')));
-      return ret;
-    }
-    ret.addAll(extractNestedFormattedObjects(js_util.getProperty(json, name)));
-  }
-  return ret;
-}
-
-main() async {
-  if (devtoolsFormatters == null) {
-    print("Warning: no devtools custom formatters specified. Skipping tests.");
-    return;
-  }
-
-  // Cache blocker is a workaround for:
-  // https://code.google.com/p/dart/issues/detail?id=11834
-  var cacheBlocker = new DateTime.now().millisecondsSinceEpoch;
-  var goldenUrl = '/root_dart/tests/dartdevc_2/debugger/'
-      'debugger_test_golden.txt?cacheBlock=$cacheBlocker';
-
-  String golden;
-  try {
-    golden = (await HttpRequest.getString(goldenUrl)).trim();
-  } catch (e) {
-    print("Warning: couldn't load golden file from $goldenUrl");
-  }
-
-  document.body.append(new ScriptElement()
-    ..type = 'text/javascript'
-    ..innerHtml = r"""
-window.ExampleJSClass = function ExampleJSClass(x) {
-  this.x = x;
-};
-""");
-
-  var _devtoolsFormatter = devtoolsFormatters.first;
-
-  var actual = new StringBuffer();
-
-  // Accumulate the entire expected custom formatted data as a single
-  // massive string buffer so it is simple to update expectations when
-  // modifying the formatting code.
-  // Otherwise a small formatting change would result in tweaking lots
-  // of expectations.
-  // The verify golden match test cases does the final comparison of golden
-  // to expected output.
-  addGolden(String name, value) {
-    var text = format(value);
-    actual.write('Test: $name\n'
-        'Value:\n'
-        '$text\n'
-        '-----------------------------------\n');
-  }
-
-  addFormatterGoldens(String name, object, [config]) {
-    addGolden(
-        '$name formatting header', _devtoolsFormatter.header(object, config));
-    addGolden('$name formatting body', _devtoolsFormatter.body(object, config));
-  }
-
-  // Include goldens for the nested [[class]] definition field.
-  addNestedFormatterGoldens(String name, obj) {
-    addGolden('$name instance header', _devtoolsFormatter.header(obj, null));
-    var body = _devtoolsFormatter.body(obj, null);
-    addGolden('$name instance body', body);
-
-    var nestedObjects = extractNestedFormattedObjects(body);
-    var clazz = nestedObjects.last;
-    // By convention assume last nested object is the [[class]] definition
-    // describing the object's static members and inheritance hierarchy
-    addFormatterGoldens('$name definition', clazz.object, clazz.config);
-  }
-
-  // Include goldens for the nested [[class]] definition field.
-  addAllNestedFormatterGoldens(String name, obj) {
-    addGolden('$name header', _devtoolsFormatter.header(obj, null));
-    var body = _devtoolsFormatter.body(obj, null);
-    addGolden('$name body', body);
-
-    var nestedObjects = extractNestedFormattedObjects(body);
-    var i = 0;
-    for (var nested in nestedObjects) {
-      addFormatterGoldens('$name child $i', nested.object, nested.config);
-      i++;
-    }
-  }
-
-  group('Iterable formatting', () {
-    var list = ['foo', 'bar', 'baz'];
-    var iterable = list.map((x) => x * 5);
-    addFormatterGoldens('List<String>', list);
-
-    var listOfObjects = <Object>[42, 'bar', true];
-
-    addNestedFormatterGoldens('List<Object>', listOfObjects);
-
-    var largeList = <int>[];
-    for (var i = 0; i < 200; ++i) {
-      largeList.add(i * 10);
-    }
-    addNestedFormatterGoldens('List<int> large', largeList);
-
-    addNestedFormatterGoldens('Iterable', iterable);
-
-    var s = new Set()
-      ..add("foo")
-      ..add(42)
-      ..add(true);
-    addNestedFormatterGoldens('Set', s);
-  });
-
-  group('Map formatting', () {
-    Map<String, int> foo = new Map();
-    foo = {'1': 2, 'x': 4, '5': 6};
-
-    addFormatterGoldens('Map<String, int>', foo);
-    test('hasBody', () {
-      expect(_devtoolsFormatter.hasBody(foo, null), isTrue);
-    });
-
-    Map<dynamic, dynamic> dynamicMap = new Map();
-    dynamicMap = {1: 2, 'x': 4, true: "truthy"};
-
-    addNestedFormatterGoldens('Map<dynamic, dynamic>', dynamicMap);
-  });
-
-  group('Function formatting', () {
-    adder(int a, int b) => a + b;
-
-    addFormatterGoldens('Function', adder);
-
-    test('hasBody', () {
-      expect(_devtoolsFormatter.hasBody(adder, null), isTrue);
-    });
-
-    addEventListener(String name, bool callback(Event e)) => null;
-
-    addFormatterGoldens('Function with function arguments', addEventListener);
-
-    // Closure
-    addGolden('dart:html method', window.addEventListener);
-
-    // Get a reference to the JS constructor for a Dart class.
-    // This tracks a regression bug where overly verbose and confusing output
-    // was shown for this case.
-    var testClass = new TestClass(17);
-    var dartConstructor = js_util.getProperty(
-        js_util.objectGetPrototypeOf(testClass), 'constructor');
-    addFormatterGoldens('Raw reference to dart constructor', dartConstructor);
-  });
-
-  group('Object formatting', () {
-    var object = new Object();
-    addFormatterGoldens('Object', object);
-    test('hasBody', () {
-      expect(_devtoolsFormatter.hasBody(object, null), isTrue);
-    });
-  });
-
-  group('Type formatting', () {
-    addFormatterGoldens('Type TestClass', TestClass);
-    addFormatterGoldens('Type HttpRequest', HttpRequest);
-  });
-
-  group('JS interop object formatting', () {
-    var object = js_util.newObject();
-    js_util.setProperty(object, 'foo', 'bar');
-    // Make sure we don't apply the Dart custom formatter to JS interop objects.
-    expect(_devtoolsFormatter.header(object, null), isNull);
-  });
-
-  group('Module formatting', () {
-    var moduleNames = _debugger.getModuleNames();
-    var testModuleName = "debugger_test";
-    expect(moduleNames.contains(testModuleName), isTrue);
-
-    addAllNestedFormatterGoldens(
-        'Test library Module', _debugger.getModuleLibraries(testModuleName));
-  });
-
-  group('StackTrace formatting', () {
-    StackTrace stack;
-    try {
-      throw new Error();
-    } catch (exception, stackTrace) {
-      stack = stackTrace;
-    }
-    addFormatterGoldens('StackTrace', stack);
-    test('hasBody', () {
-      expect(_devtoolsFormatter.hasBody(stack, null), isTrue);
-    });
-  });
-
-  group('Class formatting', () {
-    addNestedFormatterGoldens('TestClass', new TestClass(17));
-    // TODO(jmesserly): this includes a timeStamp, so it varies each run.
-    //addNestedFormatterGoldens('MouseEvent', new MouseEvent("click"));
-    // This is a good class to test as it has statics and a deep inheritance hierarchy
-    addNestedFormatterGoldens('HttpRequest', new HttpRequest());
-  });
-
-  group('Generics formatting', () {
-    addNestedFormatterGoldens(
-        'TestGenericClass', new TestGenericClass<int, List>(42));
-    addNestedFormatterGoldens(
-        'TestGenericClassJSInterop',
-        new TestGenericClass<ExampleJSClass<String>, int>(
-            new ExampleJSClass("Hello")));
-  });
-
-  test('verify golden match', () {
-    // Warning: all other test groups must have run for this test to be meaningful
-    var actualStr = actual.toString().trim();
-
-    if (actualStr != golden) {
-      var helpMessage =
-          'Debugger output does not match the golden data found in:\n'
-          'tests/dartdevc_2/debugger/debugger_test_golden.txt\n'
-          'The new golden data is copied to the clipboard when you click on '
-          'this window.\n'
-          'Please update the golden file with the following output and review '
-          'the diff using your favorite diff tool to make sure the custom '
-          'formatting output has not regressed.';
-      print(helpMessage);
-      // Copy text to clipboard on page click. We can't copy to the clipboard
-      // without a click due to Chrome security.
-      TextAreaElement textField = new Element.tag('textarea');
-      textField.maxLength = 100000000;
-      textField.text = actualStr;
-      textField.style
-        ..width = '800px'
-        ..height = '400px';
-      document.body.append(new Element.tag('h3')
-        ..innerHtml = helpMessage.replaceAll('\n', '<br>'));
-      document.body.append(textField);
-      document.body.onClick.listen((_) {
-        textField.select();
-        var result = document.execCommand('copy');
-        if (result) {
-          print("Copy to clipboard successful");
-        } else {
-          print("Copy to clipboard failed");
-        }
-      });
-    }
-    expect(actualStr == golden, isTrue);
-  });
-}
diff --git a/tests/dartdevc_2/debugger/debugger_test_golden.txt b/tests/dartdevc_2/debugger/debugger_test_golden.txt
deleted file mode 100644
index 60b3293cbe7..00000000000
--- a/tests/dartdevc_2/debugger/debugger_test_golden.txt
+++ /dev/null
@@ -1,7470 +0,0 @@
-Test: List<String> formatting header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "List<String> length 3"
-]
------------------------------------
-Test: List<String> formatting body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "0: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                "foo"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "1: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                "bar"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "2: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                "baz"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "[[class]]: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ]
-]
------------------------------------
-Test: List<Object> instance header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "List<Object> length 3"
-]
------------------------------------
-Test: List<Object> instance body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "0: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                "42"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "1: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                "bar"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "2: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                "true"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "[[class]]: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ]
-]
------------------------------------
-Test: List<Object> definition formatting header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "List<Object>"
-]
------------------------------------
-Test: List<Object> definition formatting body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": ""
-                },
-                "[[Instance Methods]]"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "+: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "add: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "addAll: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "any: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "asMap: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "cast: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "checkGrowable: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "checkMutable: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "clear: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "contains: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "elementAt: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "every: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "expand: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "fillRange: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "firstWhere: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "fold: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "followedBy: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "forEach: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "getRange: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "indexOf: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "indexWhere: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "insert: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "insertAll: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "join: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "lastIndexOf: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "lastIndexWhere: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "lastWhere: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "map: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "reduce: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "remove: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "removeAt: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "removeLast: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "removeRange: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "removeWhere: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "replaceRange: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "retainWhere: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "setAll: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "setRange: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "shuffle: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "singleWhere: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "skip: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "skipWhile: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "sort: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "sublist: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "take: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "takeWhile: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "toList: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "toSet: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "where: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "whereType: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "_get: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "_removeWhere: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "_set: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "_setLengthUnsafe: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "[[base class]]: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ]
-]
------------------------------------
-Test: List<int> large instance header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "List<int> length 200"
-]
------------------------------------
-Test: List<int> large instance body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": ""
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": ""
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "[[class]]: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ]
-]
------------------------------------
-Test: List<int> large definition formatting header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "List<int>"
-]
------------------------------------
-Test: List<int> large definition formatting body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": ""
-                },
-                "[[Instance Methods]]"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "+: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "add: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "addAll: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "any: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "asMap: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "cast: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "checkGrowable: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "checkMutable: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "clear: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "contains: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "elementAt: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
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-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "_setLengthUnsafe: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "[[base class]]: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ]
-]
------------------------------------
-Test: Iterable instance header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "MappedListIterable<String, String> length 3"
-]
------------------------------------
-Test: Iterable instance body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "0: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                "foofoofoofoofoo"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "1: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                "barbarbarbarbar"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "2: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                "bazbazbazbazbaz"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "[[class]]: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ]
-]
------------------------------------
-Test: Iterable definition formatting header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "MappedListIterable<String, String>"
-]
------------------------------------
-Test: Iterable definition formatting body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": ""
-                },
-                "[[Instance Methods]]"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "any: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "cast: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "contains: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "elementAt: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "every: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "expand: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "firstWhere: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "fold: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "followedBy: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "forEach: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "join: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "lastWhere: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "map: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "reduce: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "singleWhere: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "skip: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "skipWhile: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "take: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "takeWhile: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "toList: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "toSet: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "where: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "whereType: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "[[base class]]: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ]
-]
------------------------------------
-Test: Set instance header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "_HashSet<dynamic> length 3"
-]
------------------------------------
-Test: Set instance body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "0: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                "foo"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "1: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                "42"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "2: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                "true"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "[[class]]: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ]
-]
------------------------------------
-Test: Set definition formatting header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "_HashSet<dynamic>"
-]
------------------------------------
-Test: Set definition formatting body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": ""
-                },
-                "[[Instance Methods]]"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "add: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "contains: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "lookup: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "remove: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "_newSet: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "_newSimilarSet: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "[[base class]]: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ]
-]
------------------------------------
-Test: Map<String, int> formatting header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "IdentityMap<String, int> length 3"
-]
------------------------------------
-Test: Map<String, int> formatting body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "0: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "1: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "2: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "[[class]]: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ]
-]
------------------------------------
-Test: Map<dynamic, dynamic> instance header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "LinkedMap<dynamic, dynamic> length 3"
-]
------------------------------------
-Test: Map<dynamic, dynamic> instance body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "0: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "1: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "2: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "[[class]]: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ]
-]
------------------------------------
-Test: Map<dynamic, dynamic> definition formatting header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "LinkedMap<dynamic, dynamic>"
-]
------------------------------------
-Test: Map<dynamic, dynamic> definition formatting body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": ""
-                },
-                "[[Instance Methods]]"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "clear: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "remove: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "_get: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "_set: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "[[base class]]: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ]
-]
------------------------------------
-Test: Function formatting header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "(int, int) => int"
-]
------------------------------------
-Test: Function formatting body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "signature: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                "(int, int) => int"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "JavaScript Function: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ]
-]
------------------------------------
-Test: Function with function arguments formatting header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "(String, (Event) => bool) => Null"
-]
------------------------------------
-Test: Function with function arguments formatting body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "signature: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                "(String, (Event) => bool) => Null"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "JavaScript Function: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ]
-]
------------------------------------
-Test: dart:html method
-Value:
-null
------------------------------------
-Test: Raw reference to dart constructor formatting header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "TestClass"
-]
------------------------------------
-Test: Raw reference to dart constructor formatting body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": ""
-                },
-                "[[Instance Methods]]"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "addOne: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "last: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "nameAndDate: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "returnObject: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "[[base class]]: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ]
-]
------------------------------------
-Test: Object formatting header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "Instance of 'Object'"
-]
------------------------------------
-Test: Object formatting body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "runtimeType: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "[[class]]: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ]
-]
------------------------------------
-Test: Type TestClass formatting header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "TestClass"
-]
------------------------------------
-Test: Type TestClass formatting body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    }
-]
------------------------------------
-Test: Type HttpRequest formatting header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "HttpRequest"
-]
------------------------------------
-Test: Type HttpRequest formatting body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    }
-]
------------------------------------
-Test: Test library Module header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "Library Module: debugger_test"
-]
------------------------------------
-Test: Test library Module body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": ""
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ]
-]
------------------------------------
-Test: Test library Module child 0 formatting header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "<FILE>"
-]
------------------------------------
-Test: Test library Module child 0 formatting body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "TestClass: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "TestGenericClass<dynamic, dynamic>: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "ExampleJSClass: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "FormattedObject: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "replacer: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "format: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "extractNestedFormattedObjects: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "main: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "devtoolsFormatters: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ]
-]
------------------------------------
-Test: StackTrace formatting header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "StackTrace"
-]
------------------------------------
-Test: StackTrace formatting body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;background-color: thistle;color: rgb(196, 26, 22);"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": ""
-                },
-                "Error: Instance of 'Error'"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": ""
-                },
-                "<DART_SDK>"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": ""
-                },
-                "<FILE>"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": ""
-                },
-                "<FILE>"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": ""
-                },
-                "<FILE>"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": ""
-                },
-                "main.next (<anonymous>)"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": ""
-                },
-                "<DART_SDK>"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": ""
-                },
-                "<DART_SDK>"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": ""
-                },
-                "<DART_SDK>"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": ""
-                },
-                "<DART_SDK>"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": ""
-                },
-                "<DART_SDK>"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": ""
-                },
-                "<DART_SDK>"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": ""
-                },
-                "<DART_SDK>"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": ""
-                },
-                "<DART_SDK>"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": ""
-                },
-                "<DART_SDK>"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": ""
-                },
-                "<DART_SDK>"
-            ]
-        ]
-    ]
-]
------------------------------------
-Test: TestClass instance header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "Instance of 'TestClass'"
-]
------------------------------------
-Test: TestClass instance body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "date: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                "17"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "name: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                "test class"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "runtimeType: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "someInt: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                "42"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "someObject: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "someString: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                "Hello world"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "[[class]]: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ]
-]
------------------------------------
-Test: TestClass definition formatting header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "TestClass"
-]
------------------------------------
-Test: TestClass definition formatting body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": ""
-                },
-                "[[Instance Methods]]"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "addOne: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "last: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "nameAndDate: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "returnObject: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "[[base class]]: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ]
-]
------------------------------------
-Test: HttpRequest instance header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "[object XMLHttpRequest]"
-]
------------------------------------
-Test: HttpRequest instance body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "on: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "onAbort: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "onError: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "onLoad: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "onLoadEnd: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "onLoadStart: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "onProgress: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "onReadyStateChange: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "onTimeout: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "readyState: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                "0"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "response: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                ""
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "responseHeaders: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "responseText: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                ""
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "responseType: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                ""
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "responseUrl: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                ""
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "responseXml: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "runtimeType: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "status: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                "0"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "statusText: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                ""
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "timeout: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                "0"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "upload: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "withCredentials: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                "false"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "_get_response: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                ""
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "[[class]]: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ]
-]
------------------------------------
-Test: HttpRequest definition formatting header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "HttpRequest"
-]
------------------------------------
-Test: HttpRequest definition formatting body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": ""
-                },
-                "[[Instance Methods]]"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "abort: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "getAllResponseHeaders: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "getResponseHeader: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "open: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "overrideMimeType: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "send: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "setRequestHeader: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "[[base class]]: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ]
-]
------------------------------------
-Test: TestGenericClass instance header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "Instance of 'TestGenericClass<int, List<dynamic>>'"
-]
------------------------------------
-Test: TestGenericClass instance body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-                },
-                "x: "
-            ],
-            [
-                "span",
-                {
-                    "style": "margin-left: 13px"
-                },
-                "42"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "runtimeType: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "[[class]]: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ]
-]
------------------------------------
-Test: TestGenericClass definition formatting header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "TestGenericClass<int, List<dynamic>>"
-]
------------------------------------
-Test: TestGenericClass definition formatting body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": ""
-                },
-                "[[Instance Methods]]"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "noSuchMethod: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "toString: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "_equals: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "[[base class]]: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ]
-]
------------------------------------
-Test: TestGenericClassJSInterop instance header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "Instance of 'TestGenericClass<ExampleJSClass<any>, int>'"
-]
------------------------------------
-Test: TestGenericClassJSInterop instance body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "x: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "runtimeType: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "[[class]]: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ]
-]
------------------------------------
-Test: TestGenericClassJSInterop definition formatting header
-Value:
-[
-    "span",
-    {
-        "style": "background-color: #d9edf7;color: black"
-    },
-    "TestGenericClass<ExampleJSClass<any>, int>"
-]
------------------------------------
-Test: TestGenericClassJSInterop definition formatting body
-Value:
-[
-    "ol",
-    {
-        "style": "list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;"
-    },
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {},
-            [
-                "span",
-                {
-                    "style": ""
-                },
-                "[[Instance Methods]]"
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "noSuchMethod: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "toString: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "_equals: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ],
-    [
-        "li",
-        {
-            "style": "padding-left: 13px;"
-        },
-        [
-            "span",
-            {
-                "style": "background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px"
-            },
-            "[[base class]]: "
-        ],
-        [
-            "span",
-            {
-                "style": "margin-left: 13px"
-            },
-            [
-                "object",
-                {
-                    "object": "<OBJECT>",
-                    "config": {}
-                }
-            ]
-        ]
-    ]
-]
------------------------------------
\ No newline at end of file
diff --git a/tests/dartdevc_2/developer_events_test.dart b/tests/dartdevc_2/developer_events_test.dart
deleted file mode 100644
index b14581086a0..00000000000
--- a/tests/dartdevc_2/developer_events_test.dart
+++ /dev/null
@@ -1,189 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-@JS()
-library developer_events_test;
-
-import 'dart:developer'
-    show postEvent, registerExtension, ServiceExtensionResponse;
-
-import 'package:js/js.dart';
-import 'package:expect/expect.dart';
-import 'package:expect/minitest.dart';
-
-@JS(r'$emitDebugEvent')
-external set emitDebugEvent(void Function(String, String) func);
-
-@JS(r'$emitDebugEvent')
-external void Function(String, String) get emitDebugEvent;
-
-@JS(r'$emitRegisterEvent')
-external set emitRegisterEvent(void Function(String)? func);
-
-@JS(r'$emitRegisterEvent')
-external void Function(String) get emitRegisterEvent;
-
-@JS(r'console.warn')
-external set consoleWarn(void Function(String) func);
-
-@JS(r'console.warn')
-external void Function(String) get consoleWarn;
-
-@JS(r'console.debug')
-external set consoleDebug(void Function(String) func);
-
-@JS(r'console.debug')
-external void Function(String) get consoleDebug;
-
-@JS(r'$dwdsVersion')
-external set dwdsVersion(String s);
-
-@JS(r'$dwdsVersion')
-external String get dwdsVersion;
-
-class _TestDebugEvent {
-  final String kind;
-  final String eventData;
-  _TestDebugEvent(this.kind, this.eventData);
-}
-
-void main() {
-  testRegisterExtensionWarningMessage();
-  testPostEvent();
-  testRegisterExtension();
-}
-
-/// Verify that warning messages are printed on the first call of
-/// `registerExtension()` when the hooks are undefined.
-///
-/// Calls to `postEvent()` are always a no-op when no extension has been
-/// registered to listen which can never happen if the hook is undefined.
-void testRegisterExtensionWarningMessage() {
-  final consoleWarnLog = <String>[];
-  var savedConsoleWarn = consoleWarn;
-  try {
-    // Patch our own console.warn function for testing.
-    consoleWarn = allowInterop((String s) => consoleWarnLog.add(s));
-    expect(consoleWarnLog.isEmpty, true);
-
-    var data0 = {'key0': 'value0'};
-    postEvent('kind0', data0);
-
-    // Nothing is listening, so this was a no-op.
-    expect(consoleWarnLog.isEmpty, true);
-
-    postEvent('kind0', data0);
-    var data1 = {'key1': 'value1'};
-    postEvent('kind1', data1);
-
-    // No warnings should be issued because postEvent is a no-op when no
-    // extensions have been registered to listen.
-    expect(consoleWarnLog.isEmpty, true);
-
-    consoleWarnLog.clear();
-
-    var testHandler = (String s, Map<String, String> m) async =>
-        ServiceExtensionResponse.result('test result');
-
-    expect(consoleWarnLog.isEmpty, true);
-
-    registerExtension('ext.method0', testHandler);
-
-    // A warning message was issued about calling `registerExtension()` from
-    // dart:developer.
-    expect(
-        consoleWarnLog.single
-            .contains('registerExtension() from dart:developer'),
-        true);
-
-    registerExtension('ext.method1', testHandler);
-    registerExtension('ext.method2', testHandler);
-
-    // A warning is only issued on the first call of `registerExtension()`.
-    expect(consoleWarnLog.length, 1);
-
-    consoleWarnLog.clear();
-
-    // The earlier call to registerExtension() was a no-op and printed a warning
-    // because no debugger hooks are defined. This means more calls to
-    // `postEvent()` are still no ops.
-    postEvent('kind0', data0);
-    postEvent('kind1', data1);
-    expect(consoleWarnLog.isEmpty, true);
-  } finally {
-    // Restore actual console.warn function.
-    consoleWarn = savedConsoleWarn;
-  }
-}
-
-void testPostEvent() {
-  final debugEventLog = <_TestDebugEvent>[];
-  var savedEmitDebugEvent = emitDebugEvent;
-  var savedDwdsVersion = dwdsVersion;
-
-  try {
-    // Provide a test version of the $emitDebugEvent hook.
-    emitDebugEvent = allowInterop((String kind, String eventData) {
-      debugEventLog.add(_TestDebugEvent(kind, eventData));
-    });
-    // Provide a version to signal there is an attached debugger.
-    dwdsVersion = '1.0.0-for-test';
-    expect(debugEventLog.isEmpty, true);
-
-    var data0 = {'key0': 'value0'};
-    postEvent('kind0', data0);
-
-    expect(debugEventLog.single.kind, 'kind0');
-    Expect.contains('"key0":"value0"', debugEventLog.single.eventData);
-
-    var data1 = {'key1': 'value1'};
-    var data2 = {'key2': 'value2'};
-    postEvent('kind1', data1);
-    postEvent('kind2', data2);
-
-    expect(debugEventLog.length, 3);
-    expect(debugEventLog[0].kind, 'kind0');
-    Expect.contains('"key0":"value0"', debugEventLog[0].eventData);
-    expect(debugEventLog[1].kind, 'kind1');
-    Expect.contains('"key1":"value1"', debugEventLog[1].eventData);
-    expect(debugEventLog[2].kind, 'kind2');
-    Expect.contains('"key2":"value2"', debugEventLog[2].eventData);
-  } finally {
-    emitDebugEvent = savedEmitDebugEvent;
-    dwdsVersion = savedDwdsVersion;
-  }
-}
-
-void testRegisterExtension() {
-  final registerEventLog = <String>[];
-  var savedEmitRegisterEvent = emitRegisterEvent;
-  var savedDwdsVersion = dwdsVersion;
-
-  try {
-    // Provide a test version of the $emitRegisterEvent hook.
-    emitRegisterEvent = allowInterop((String eventData) {
-      registerEventLog.add(eventData);
-    });
-    // Provide a version to signal there is an attached debugger.
-    dwdsVersion = '1.0.0-for-test';
-    expect(registerEventLog.isEmpty, true);
-
-    var testHandler = (String s, Map<String, String> m) async =>
-        ServiceExtensionResponse.result('test result');
-    registerExtension('ext.method0', testHandler);
-
-    expect(registerEventLog.single, 'ext.method0');
-
-    registerExtension('ext.method1', testHandler);
-    registerExtension('ext.method2', testHandler);
-
-    expect(registerEventLog.length, 3);
-    expect(registerEventLog[0], 'ext.method0');
-    expect(registerEventLog[1], 'ext.method1');
-    expect(registerEventLog[2], 'ext.method2');
-  } finally {
-    emitRegisterEvent = savedEmitRegisterEvent;
-    dwdsVersion = savedDwdsVersion;
-  }
-}
diff --git a/tests/dartdevc_2/hot_restart_expando_test.dart b/tests/dartdevc_2/hot_restart_expando_test.dart
deleted file mode 100644
index 12ce127c040..00000000000
--- a/tests/dartdevc_2/hot_restart_expando_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:_runtime' as dart;
-
-import 'package:expect/expect.dart';
-import 'package:js/js.dart';
-
-final e = Expando<int>();
-
-@JS()
-external void eval(String s);
-
-@JS()
-external Object get singleton;
-
-void main() {
-  eval('''
-    if (!self.singleton) {
-      self.singleton = {};
-    }
-  ''');
-  var o = singleton;
-  Expect.equals(null, e[o]);
-  e[o] = 1;
-
-  dart.hotRestart();
-  Expect.equals(null, e[o]);
-}
diff --git a/tests/dartdevc_2/hot_restart_lazy_test.dart b/tests/dartdevc_2/hot_restart_lazy_test.dart
deleted file mode 100644
index 6d1d0ccf6d8..00000000000
--- a/tests/dartdevc_2/hot_restart_lazy_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that lazily-loaded fields are properly reset after hot restarts.
-
-import 'package:expect/expect.dart';
-import 'dart:_runtime' as dart;
-
-double lazy = 3.14;
-
-class Lazies {
-  static String s = "default";
-}
-
-main() {
-  Expect.equals(Lazies.s, "default");
-  Lazies.s = "set";
-  Expect.equals(Lazies.s, "set");
-  Expect.equals(lazy, 3.14);
-  lazy = 2.72;
-  Expect.equals(lazy, 2.72);
-
-  dart.hotRestart();
-
-  Expect.equals(Lazies.s, "default");
-  Lazies.s = "set";
-  Expect.equals(Lazies.s, "set");
-  Expect.equals(lazy, 3.14);
-  lazy = 2.72;
-  Expect.equals(lazy, 2.72);
-
-  dart.hotRestart();
-  dart.hotRestart();
-
-  Expect.equals(Lazies.s, "default");
-  Expect.equals(lazy, 3.14);
-}
diff --git a/tests/dartdevc_2/hot_restart_static_test.dart b/tests/dartdevc_2/hot_restart_static_test.dart
deleted file mode 100644
index 73e93d19b6e..00000000000
--- a/tests/dartdevc_2/hot_restart_static_test.dart
+++ /dev/null
@@ -1,84 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that static fields are properly reset after hot restarts.
-
-import 'dart:_runtime' as dart show hotRestart, resetFields;
-
-import 'package:expect/expect.dart';
-
-String noInitializer;
-int withInitializer = 1;
-
-class Statics {
-  static String noInitializer;
-  static int withInitializer = 2;
-}
-
-class StaticsGeneric<T> {
-  static String noInitializer;
-  static int withInitializer = 3;
-}
-
-main() {
-  var resetFieldCount = dart.resetFields.length;
-
-  // Set static fields without explicit initializers. Avoid calling getters for
-  // these statics to ensure they are reset even if they are never accessed.
-  noInitializer = 'set via setter';
-  Statics.noInitializer = 'Statics set via setter';
-  StaticsGeneric.noInitializer = 'StaticsGeneric set via setter';
-
-  // Initialized statics should contain their values.
-  Expect.equals(1, withInitializer);
-  Expect.equals(2, Statics.withInitializer);
-  Expect.equals(3, StaticsGeneric.withInitializer);
-
-  // Six new field resets from 3 setter calls and 3 getter calls.
-  var expectedResets = resetFieldCount + 6;
-  Expect.equals(expectedResets, dart.resetFields.length);
-
-  dart.hotRestart();
-  resetFieldCount = dart.resetFields.length;
-
-  // Uninitialized statics have been reset to their implicit null initial state.
-  Expect.equals(null, noInitializer);
-  Expect.equals(null, Statics.noInitializer);
-  Expect.equals(null, StaticsGeneric.noInitializer);
-
-  noInitializer = 'set via setter';
-  Statics.noInitializer = 'Statics set via setter';
-  StaticsGeneric.noInitializer = 'StaticsGeneric set via setter';
-
-  // All statics should contain their set values.
-  Expect.equals('set via setter', noInitializer);
-  Expect.equals('Statics set via setter', Statics.noInitializer);
-  Expect.equals('StaticsGeneric set via setter', StaticsGeneric.noInitializer);
-  Expect.equals(1, withInitializer);
-  Expect.equals(2, Statics.withInitializer);
-  Expect.equals(3, StaticsGeneric.withInitializer);
-
-  // Six total new field resets despite getter and setter calls on the same
-  // static fields.
-  expectedResets = resetFieldCount + 6;
-  Expect.equals(expectedResets, dart.resetFields.length);
-
-  dart.hotRestart();
-  dart.hotRestart();
-  resetFieldCount = dart.resetFields.length;
-
-  // All statics should contain their initial values.
-  Expect.equals(null, noInitializer);
-  Expect.equals(null, Statics.noInitializer);
-  Expect.equals(null, StaticsGeneric.noInitializer);
-  Expect.equals(1, withInitializer);
-  Expect.equals(2, Statics.withInitializer);
-  Expect.equals(3, StaticsGeneric.withInitializer);
-
-  // Six new field resets from 6 getter calls.
-  expectedResets = resetFieldCount + 6;
-  Expect.equals(expectedResets, dart.resetFields.length);
-}
diff --git a/tests/dartdevc_2/hot_restart_test.dart b/tests/dartdevc_2/hot_restart_test.dart
deleted file mode 100644
index c34f5d94809..00000000000
--- a/tests/dartdevc_2/hot_restart_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.6
-
-import 'package:expect/expect.dart';
-import 'dart:_foreign_helper' show JS;
-import 'dart:_runtime' as dart;
-
-class Foo<T> {
-  Type type() => typeOf<Foo<T>>();
-}
-
-class Bar {}
-
-Type typeOf<T>() => T;
-
-Type fooOf<T>() => typeOf<Foo<T>>();
-
-typedef funcType = Function(String);
-
-void func(Object o) {}
-
-void main() {
-  var f1 = Foo<Bar>();
-  var t1 = typeOf<Foo<Bar>>();
-  Expect.equals(f1.type(), t1);
-  var s1 = fooOf<Bar>();
-  Expect.equals(t1, s1);
-
-  Expect.isTrue(func is funcType);
-
-  dart.hotRestart();
-
-  var f2 = Foo<Bar>();
-  Expect.isTrue(f2 is Foo<Bar>);
-  var t2 = typeOf<Foo<Bar>>();
-  Expect.equals(f2.type(), t2);
-  var s2 = fooOf<Bar>();
-  Expect.equals(t2, s2);
-
-  Expect.isTrue(func is funcType);
-}
diff --git a/tests/dartdevc_2/hot_restart_timer_test.dart b/tests/dartdevc_2/hot_restart_timer_test.dart
deleted file mode 100644
index 2a8d6dff5bd..00000000000
--- a/tests/dartdevc_2/hot_restart_timer_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.6
-
-import 'package:expect/expect.dart';
-import 'dart:async';
-import 'dart:_runtime' as dart;
-
-void main() async {
-  await timeoutTest();
-  await periodicTest();
-}
-
-void timeoutTest() async {
-  bool beforeRestart = true;
-  bool calledBeforeRestart = false;
-  bool calledAfterRestart = false;
-  void callback() {
-    if (beforeRestart) {
-      calledBeforeRestart = true;
-    } else {
-      calledAfterRestart = true;
-    }
-  }
-
-  Timer(Duration(milliseconds: 500), callback);
-  dart.hotRestart();
-  beforeRestart = false;
-  await new Future.delayed(Duration(milliseconds: 600));
-  Expect.isFalse(calledBeforeRestart);
-  Expect.isFalse(calledAfterRestart);
-}
-
-void periodicTest() async {
-  bool beforeRestart = true;
-  bool calledBeforeRestart = false;
-  bool calledAfterRestart = false;
-  void callback(_) {
-    if (beforeRestart) {
-      calledBeforeRestart = true;
-    } else {
-      calledAfterRestart = true;
-    }
-  }
-
-  Timer.periodic(Duration(milliseconds: 10), callback);
-  await new Future.delayed(Duration(milliseconds: 100));
-  dart.hotRestart();
-  beforeRestart = false;
-  await new Future.delayed(Duration(milliseconds: 100));
-  Expect.isTrue(calledBeforeRestart);
-  Expect.isFalse(calledAfterRestart);
-}
diff --git a/tests/dartdevc_2/js_interop_non_external_lib.dart b/tests/dartdevc_2/js_interop_non_external_lib.dart
deleted file mode 100644
index c5ae5c46be2..00000000000
--- a/tests/dartdevc_2/js_interop_non_external_lib.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Define a JS class in a different library to test that name resolution works
-// for non-external factories and static methods. Also uses class type
-// parameters to make sure we generate a generic class.
-
-@JS()
-library js_interop_non_external_lib;
-
-import 'package:js/js.dart';
-
-@JS('JSClass')
-class OtherJSClass<T> {
-  external OtherJSClass.cons(T t);
-  factory OtherJSClass(T t) {
-    field = 'unnamed';
-    return OtherJSClass.cons(t);
-  }
-
-  factory OtherJSClass.named(T t) {
-    field = 'named';
-    return OtherJSClass.cons(t);
-  }
-
-  factory OtherJSClass.redirecting(T t) = OtherJSClass;
-
-  static String field = '';
-  static String get getSet {
-    return field;
-  }
-
-  static set getSet(String val) {
-    field = val;
-  }
-
-  static String method() => field;
-
-  static T genericMethod<T>(T t) => t;
-}
diff --git a/tests/dartdevc_2/js_interop_non_external_test.dart b/tests/dartdevc_2/js_interop_non_external_test.dart
deleted file mode 100644
index da46a43365e..00000000000
--- a/tests/dartdevc_2/js_interop_non_external_test.dart
+++ /dev/null
@@ -1,151 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test non-external factories and static methods of JS interop classes.
-
-@JS()
-library js_interop_non_external_test;
-
-import 'package:expect/minitest.dart';
-import 'package:js/js.dart';
-
-import 'js_interop_non_external_lib.dart';
-
-@JS()
-external dynamic eval(String code);
-
-@JS()
-class JSClass {
-  external JSClass.cons();
-  factory JSClass() {
-    field = 'unnamed';
-    return JSClass.cons();
-  }
-
-  factory JSClass.named() {
-    field = 'named';
-    return JSClass.cons();
-  }
-
-  factory JSClass.redirecting() = JSClass;
-
-  static String field = '';
-  static String get getSet {
-    return field;
-  }
-
-  static set getSet(String val) {
-    field = val;
-  }
-
-  static String method() => field;
-
-  static T genericMethod<T>(T t) => t;
-}
-
-@JS('JSClass')
-@staticInterop
-class StaticInterop {
-  external factory StaticInterop();
-  factory StaticInterop.named() {
-    field = 'named';
-    return StaticInterop();
-  }
-
-  static String field = '';
-
-  static String method() => field;
-}
-
-@JS()
-@anonymous
-class Anonymous {
-  external factory Anonymous();
-
-  factory Anonymous.named() {
-    field = 'named';
-    return Anonymous();
-  }
-
-  static String field = '';
-
-  static String method() => field;
-}
-
-void testLocal() {
-  // Test field is initialized and modified.
-  expect(JSClass.field, '');
-  JSClass.field = 'modified';
-  expect(JSClass.field, 'modified');
-
-  // Test factories and side-effects to make sure body is executed.
-  JSClass();
-  expect(JSClass.field, 'unnamed');
-  JSClass.named();
-  expect(JSClass.field, 'named');
-  JSClass.redirecting();
-  expect(JSClass.field, 'unnamed');
-
-  // Test getter and setter.
-  expect(JSClass.getSet, JSClass.field);
-  JSClass.getSet = 'set';
-  expect(JSClass.field, 'set');
-
-  // Test methods and their tear-offs.
-  expect(JSClass.method(), JSClass.field);
-  expect(JSClass.genericMethod(JSClass.field), JSClass.field);
-
-  expect((JSClass.method)(), JSClass.field);
-  expect((JSClass.genericMethod)(JSClass.field), JSClass.field);
-
-  // Briefly check that other interop classes work too.
-  expect(StaticInterop.field, '');
-  StaticInterop.field = 'modified';
-  expect(StaticInterop.field, 'modified');
-  StaticInterop.named();
-  expect(StaticInterop.field, 'named');
-  expect(StaticInterop.method(), StaticInterop.field);
-
-  expect(Anonymous.field, '');
-  Anonymous.field = 'modified';
-  expect(Anonymous.field, 'modified');
-  Anonymous.named();
-  expect(Anonymous.field, 'named');
-  expect(Anonymous.method(), Anonymous.field);
-}
-
-// Run the same tests as `testLocal`, but with a class in a different library,
-// and with class type args.
-void testNonLocal() {
-  expect(OtherJSClass.field, '');
-  OtherJSClass.field = 'modified';
-  expect(OtherJSClass.field, 'modified');
-
-  OtherJSClass<int>(0);
-  expect(OtherJSClass.field, 'unnamed');
-  OtherJSClass.named('');
-  expect(OtherJSClass.field, 'named');
-  OtherJSClass<bool>.redirecting(true);
-  expect(OtherJSClass.field, 'unnamed');
-
-  expect(OtherJSClass.getSet, OtherJSClass.field);
-  OtherJSClass.getSet = 'set';
-  expect(OtherJSClass.field, 'set');
-
-  expect(OtherJSClass.method(), OtherJSClass.field);
-  expect(OtherJSClass.genericMethod(OtherJSClass.field), OtherJSClass.field);
-
-  expect((OtherJSClass.method)(), OtherJSClass.field);
-  expect((OtherJSClass.genericMethod)(OtherJSClass.field), OtherJSClass.field);
-}
-
-void main() {
-  eval('''
-    function JSClass(arg) {}
-  ''');
-  testLocal();
-  testNonLocal();
-}
diff --git a/tests/dartdevc_2/js_interop_test.dart b/tests/dartdevc_2/js_interop_test.dart
deleted file mode 100644
index 10a102d8ecb..00000000000
--- a/tests/dartdevc_2/js_interop_test.dart
+++ /dev/null
@@ -1,270 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.6
-
-@JS()
-library js_interop_test;
-
-import 'dart:_foreign_helper' as helper show JS;
-import 'dart:_runtime' as dart;
-import 'dart:js' show context;
-
-import 'package:expect/expect.dart';
-import 'package:js/js.dart';
-
-@JS()
-class Console {
-  @JS()
-  external void log(arg);
-}
-
-@JS('console')
-external Console get console;
-
-@JS('console.log')
-external Function get _log;
-
-@JS('console.log')
-external void log(String s);
-
-String dartStaticMethod() => 'hello';
-
-@JS('jsStaticVariable')
-external Function get _jsStaticVariable;
-
-@JS('jsStaticVariable')
-external set _jsStaticVariable(Function f);
-
-@JS('jsStaticVariable')
-external void jsStaticVariable(String s);
-
-@JS('jsStaticFunction')
-external Function get _jsStaticFunction;
-
-@JS('jsStaticFunction')
-external set _jsStaticFunction(Function f);
-
-@JS('jsStaticFunction')
-external void jsStaticFunction(String Function() f);
-
-@JS()
-class SomeClass {
-  external factory SomeClass(String Function() f);
-  external set jsFunctionFieldSetter(String Function() f);
-  external void Function(String Function() f) get jsFunctionFieldGetter;
-  external String jsInstanceMethod(String Function() f);
-
-  external NestedJs get jsNonFunctionField;
-}
-
-@JS()
-@anonymous
-class NestedJs {
-  external factory NestedJs({String Function() constructorArg});
-  external String get stringField;
-}
-
-@JS('someClass')
-external set _someClass(dynamic s);
-@JS('someClass')
-external SomeClass get someClass;
-
-void main() {
-  Function(String) jsFunc = helper.JS('', '(x) => {}');
-  Expect.equals(dart.assertInterop(jsFunc), jsFunc);
-
-  Expect.equals(dart.assertInterop(_log), _log);
-  Expect.equals(dart.assertInterop(console.log), console.log);
-  Expect.throws(() => dart.assertInterop(dartStaticMethod));
-
-  Expect.isNull(_jsStaticVariable);
-  _jsStaticVariable = jsFunc;
-  Expect.isNotNull(_jsStaticVariable);
-  Expect.equals(dart.assertInterop(_jsStaticVariable), _jsStaticVariable);
-
-  final dynamic wrappedDartStaticMethod = allowInterop(dartStaticMethod);
-
-  final Function localNonNullLegacy = () => 'hello';
-  final String Function() localNonNull = () => 'hello';
-
-  // Assignment to JS static field.
-  Expect.throws(() {
-    _jsStaticVariable = () => 'hello';
-  });
-  Expect.throws(() {
-    _jsStaticVariable = dartStaticMethod;
-  });
-  Expect.throws(() {
-    _jsStaticVariable = localNonNullLegacy;
-  });
-  Expect.throws(() {
-    _jsStaticVariable = localNonNull;
-  });
-  _jsStaticVariable = allowInterop(dartStaticMethod);
-  _jsStaticVariable = wrappedDartStaticMethod;
-
-  // Argument to static JS function.
-  Function(Function(String), String) jsFunc2 = helper.JS('', '(f) => f()');
-  _jsStaticFunction = jsFunc2;
-  Expect.throws(() {
-    jsStaticFunction(() => 'hello');
-  });
-  Expect.throws(() {
-    jsStaticFunction(dartStaticMethod);
-  });
-  Expect.throws(() {
-    jsStaticFunction(localNonNullLegacy);
-  });
-  Expect.throws(() {
-    jsStaticFunction(localNonNull);
-  });
-  jsStaticFunction(allowInterop(() => 'hello'));
-  jsStaticFunction(wrappedDartStaticMethod);
-
-  // Argument to torn off static JS function
-  dynamic method = jsStaticFunction;
-  Expect.throws(() {
-    method(() => 'hello');
-  });
-  Expect.throws(() {
-    method(dartStaticMethod);
-  });
-  Expect.throws(() {
-    method(localNonNullLegacy);
-  });
-  Expect.throws(() {
-    method(localNonNull);
-  });
-  method(allowInterop(() => 'hello'));
-  method(wrappedDartStaticMethod);
-
-  // Assignment to instance field.
-  _someClass = helper.JS(
-      '',
-      '{"jsInstanceMethod": function(f) {return f();}, '
-          '"jsNonFunctionField": {"stringField":"hello js"}, '
-          '"jsFunctionFieldGetter": function(f) {return f();}}');
-  Expect.throws((() {
-    someClass.jsFunctionFieldSetter = () => 'hello';
-  }));
-  Expect.throws((() {
-    someClass.jsFunctionFieldSetter = dartStaticMethod;
-  }));
-  Expect.throws((() {
-    someClass.jsFunctionFieldSetter = localNonNullLegacy;
-  }));
-  Expect.throws((() {
-    someClass.jsFunctionFieldSetter = localNonNull;
-  }));
-  someClass.jsFunctionFieldSetter = allowInterop(() => 'hello');
-  someClass.jsFunctionFieldSetter = wrappedDartStaticMethod;
-
-  // Argument to instance method.
-  Expect.throws(() {
-    someClass.jsInstanceMethod(() => 'hello');
-  });
-  Expect.throws(() {
-    someClass.jsInstanceMethod(dartStaticMethod);
-  });
-  Expect.throws(() {
-    someClass.jsInstanceMethod(localNonNullLegacy);
-  });
-  Expect.throws(() {
-    someClass.jsInstanceMethod(localNonNull);
-  });
-  someClass.jsInstanceMethod(allowInterop(() => 'hello'));
-  someClass.jsInstanceMethod(wrappedDartStaticMethod);
-
-  // Argument to  constructor.
-  context.callMethod('eval', ['function SomeClass(a) { a(); }']);
-  Expect.throws(() {
-    SomeClass(() => 'hello');
-  });
-  Expect.throws(() {
-    SomeClass(dartStaticMethod);
-  });
-  Expect.throws(() {
-    SomeClass(localNonNullLegacy);
-  });
-  Expect.throws(() {
-    SomeClass(localNonNull);
-  });
-  SomeClass(allowInterop(() => 'hello'));
-  SomeClass(wrappedDartStaticMethod);
-
-  // Argument to anonymous constructor.
-  Expect.throws(() {
-    NestedJs(constructorArg: () => 'hello');
-  });
-  Expect.throws(() {
-    NestedJs(constructorArg: dartStaticMethod);
-  });
-  Expect.throws(() {
-    NestedJs(constructorArg: localNonNullLegacy);
-  });
-  Expect.throws(() {
-    NestedJs(constructorArg: localNonNull);
-  });
-  NestedJs(constructorArg: allowInterop(() => 'hello'));
-  NestedJs(constructorArg: wrappedDartStaticMethod);
-
-  // Argument to torn off instance method.
-  method = someClass.jsInstanceMethod;
-  Expect.throws(() {
-    method(() => 'hello');
-  });
-  Expect.throws(() {
-    method(dartStaticMethod);
-  });
-  Expect.throws(() {
-    method(localNonNullLegacy);
-  });
-  Expect.throws(() {
-    method(localNonNull);
-  });
-  method(allowInterop(() => 'hello'));
-  method(wrappedDartStaticMethod);
-
-  // Function typed getter
-  Expect.throws(() {
-    someClass.jsFunctionFieldGetter(() => 'hello');
-  });
-  Expect.throws(() {
-    someClass.jsFunctionFieldGetter(dartStaticMethod);
-  });
-  Expect.throws(() {
-    someClass.jsFunctionFieldGetter(localNonNullLegacy);
-  });
-  Expect.throws(() {
-    someClass.jsFunctionFieldGetter(localNonNull);
-  });
-  someClass.jsFunctionFieldGetter(allowInterop(() => 'hello'));
-  someClass.jsFunctionFieldGetter(wrappedDartStaticMethod);
-
-  // Stored Function typed getter
-  method = someClass.jsFunctionFieldGetter;
-  // We lose safety after calling a getter that returns a function, which takes
-  // a function as an argument. Since this can be modeled with a method, instead
-  // of a getter returning a function, we don't expect this is a pattern likely
-  // to show up in real code.
-  //Expect.throws(() {
-  //  method(() => 'hello');
-  //});
-  //Expect.throws(() {
-  //  method(dartStaticMethod);
-  //});
-  //Expect.throws(() {
-  //  method(localNonNullLegacy);
-  //});
-  //Expect.throws(() {
-  //  method(localNonNull);
-  //});
-  method(allowInterop(() => 'hello'));
-  method(wrappedDartStaticMethod);
-
-  // Non-function fields
-  Expect.equals('hello js', someClass.jsNonFunctionField.stringField,
-      'Does not wrap access to a field');
-}
diff --git a/tests/dartdevc_2/libraries_part.dart b/tests/dartdevc_2/libraries_part.dart
deleted file mode 100644
index c26498e1e43..00000000000
--- a/tests/dartdevc_2/libraries_part.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.6
-
-part of 'libraries_test.dart';
diff --git a/tests/dartdevc_2/libraries_test.dart b/tests/dartdevc_2/libraries_test.dart
deleted file mode 100644
index 19d0bca6fe9..00000000000
--- a/tests/dartdevc_2/libraries_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.6
-
-import 'package:expect/expect.dart';
-import 'dart:_foreign_helper' show JS;
-import 'dart:_runtime' as dart;
-
-part 'libraries_part.dart';
-
-void main() {
-  // Test getLibraries()
-  var libraries = dart.getLibraries();
-  Expect.isTrue(libraries.contains('dart:core'));
-  Expect.isTrue(libraries.contains('package:expect/expect.dart'));
-
-  // Test getParts(...)
-  var expectParts = dart.getParts('package:expect/expect.dart');
-  Expect.isTrue(expectParts.isEmpty);
-
-  var testLibraries =
-      libraries.where((l) => l.endsWith('libraries_test.dart')).toList();
-  Expect.isTrue(testLibraries.length == 1);
-  var testParts = dart.getParts(testLibraries.first);
-  Expect.isTrue(testParts.length == 1);
-  Expect.isTrue(testParts.first.endsWith('libraries_part.dart'));
-
-  // Test getLibrary(...)
-  var core = dart.getLibrary('dart:core');
-  // Using the print method to verify we get the same library object.
-  // The print method is only used here because we know it is a member of the
-  // dart:core library.
-  var printMethod = JS('', '#.print', core);
-  Expect.equals(print, printMethod);
-}
diff --git a/tests/dartdevc_2/mixin/mixin_application_test.dart b/tests/dartdevc_2/mixin/mixin_application_test.dart
deleted file mode 100644
index 5c8273c9572..00000000000
--- a/tests/dartdevc_2/mixin/mixin_application_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart=2.6
-
-import 'package:expect/expect.dart';
-import 'mixin_declaration.dart';
-
-void main() {
-  // Getter `foo` returns `B._foo` that is coming from the mixin declaration.
-  Expect.equals('B._foo', C0().foo);
-  Expect.equals('B._foo', D0().foo);
-
-  // When mixin application is in a separate library from the declaration,
-  // private symbol from the current library is used to access `_foo`.
-  Expect.equals('A._foo', C()._foo);
-  Expect.equals('A._foo', D()._foo);
-  // Getter `foo` returns `B._foo` that is coming from the mixin declaration.
-  Expect.equals('B._foo', C().foo);
-  Expect.equals('B._foo', D().foo);
-
-  // E overrides `_foo`.
-  Expect.equals('E._foo', E()._foo);
-}
-
-class C0 = A0 with B;
-class C = A with B;
-
-class D0 extends A0 with B {}
-
-class D extends A with B {}
-
-class E extends A with B {
-  String _foo = 'E._foo';
-}
-
-class A0 {}
-
-class A {
-  String _foo = 'A._foo';
-}
diff --git a/tests/dartdevc_2/mixin/mixin_declaration.dart b/tests/dartdevc_2/mixin/mixin_declaration.dart
deleted file mode 100644
index a217632ee43..00000000000
--- a/tests/dartdevc_2/mixin/mixin_declaration.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.6
-
-class B {
-  String _foo = 'B._foo';
-  String get foo => _foo;
-}
diff --git a/tests/dartdevc_2/mixin/mixin_declaration_application_test.dart b/tests/dartdevc_2/mixin/mixin_declaration_application_test.dart
deleted file mode 100644
index 952014dfd3a..00000000000
--- a/tests/dartdevc_2/mixin/mixin_declaration_application_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart=2.6
-
-import 'package:expect/expect.dart';
-
-void main() {
-  // Getter `foo` returns `B._foo` that is coming from the mixin declaration.
-  Expect.equals('B._foo', C0().foo);
-  Expect.equals('B._foo', D0().foo);
-
-  // When mixin application is in the same library as the declaration,
-  // private symbol from the mixin declaration `B._foo` overrides `A._foo`.
-  Expect.equals('B._foo', C()._foo);
-  Expect.equals('B._foo', D()._foo);
-  // Getter `foo` returns `B._foo` that is coming from the mixin declaration.
-  Expect.equals('B._foo', C().foo);
-  Expect.equals('B._foo', D().foo);
-
-  // E overrides `_foo`.
-  Expect.equals('E._foo', E()._foo);
-}
-
-class C0 = A0 with B;
-class C = A with B;
-
-class D0 extends A0 with B {}
-
-class D extends A with B {}
-
-class E extends A with B {
-  String _foo = 'E._foo';
-}
-
-class A0 {}
-
-class A {
-  String _foo = 'A._foo';
-}
-
-class B {
-  String _foo = 'B._foo';
-  String get foo => _foo;
-}
diff --git a/tests/dartdevc_2/no_such_method_errors_test.dart b/tests/dartdevc_2/no_such_method_errors_test.dart
deleted file mode 100644
index 99fed5d0315..00000000000
--- a/tests/dartdevc_2/no_such_method_errors_test.dart
+++ /dev/null
@@ -1,313 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.6
-
-import 'package:expect/expect.dart';
-import 'package:expect/minitest.dart';
-
-/// This test is currently written as a white box test to ensure we don't
-/// regress on any of the existing code paths that lead to NoSuchMethod errors
-/// from dynamic calls. The test cases written with the knowledge of what the
-/// generated code will look like.
-
-// TODO(52190): Improve the NSM errors to make them more helpful.
-
-expectThrowsNSMWithExactError(
-        void Function() computation, String expectedErrorMessage) =>
-    Expect.throws<NoSuchMethodError>(
-        computation, (error) => error.toString() == expectedErrorMessage);
-
-class A {
-  String arity1(int val) {
-    val += 10;
-    return val.toString();
-  }
-
-  void genericArity2<T, S>(T t, S s) => print('$T, $S');
-
-  static String staticArity1(int val) {
-    val += 10;
-    return val.toString();
-  }
-
-  static void staticGenericArity2<T, S>(T t, S s) => print('$T, $S');
-
-  Function nullField;
-
-  Function fieldArity1 = (int val) {
-    val += 10;
-    return val.toString();
-  };
-}
-
-String arity1(int val) {
-  val += 10;
-  return val.toString();
-}
-
-void genericArity2<T, S>(T t, S s) => print('$T, $S');
-
-Function fieldArity1 = (int val) {
-  val += 10;
-  return val.toString();
-};
-
-String namedArity1({bool fosse}) {
-  return fosse.toString();
-}
-
-int x;
-
-void main() {
-  group('Dynamic call of', () {
-    dynamic instanceOfA = A();
-    test('instance of a class with no `call()` method', () {
-      // Compiled as `dcall()`.
-      expectThrowsNSMWithExactError(
-          () => instanceOfA(),
-          "NoSuchMethodError: 'call'\n"
-          "Dynamic call of object has no instance method 'call'.\n"
-          "Receiver: ${Error.safeToString(instanceOfA)}\n"
-          "Arguments: []");
-    });
-    group('null', () {
-      // TODO(49628): These should actually throw NoSuchMethodError with a
-      // helpful error message.
-      group('value', () {
-        dynamic nullVal = null;
-        test('without type arguments', () {
-          // Compiled as `dcall()`.
-          Expect.throws(() => nullVal());
-        });
-        test('passing type arguments', () {
-          // Compiled as `dgcall()`.
-          Expect.throws(() => nullVal<String, bool>());
-        });
-      });
-      group('instance field', () {
-        test('without type arguments', () {
-          // Compiled as `dsend()`.
-          Expect.throws(() => instanceOfA.nullField());
-        });
-        test('passing type arguments', () {
-          // Compiled as `dgsend()`.
-          Expect.throws(() => instanceOfA.nullField<String, bool>());
-        });
-      });
-    });
-    group('class instance members that do not exist', () {
-      group('method', () {
-        test('without passing type arguments', () {
-          // Compiled as `dsend()`.
-          expectThrowsNSMWithExactError(
-              () => instanceOfA.doesNotExist(),
-              "NoSuchMethodError: 'doesNotExist'\n"
-              "Dynamic call of null.\n"
-              "Receiver: ${Error.safeToString(instanceOfA)}\n"
-              "Arguments: []");
-        });
-        test('passing type arguments', () {
-          // Compiled as `dgsend()`.
-          expectThrowsNSMWithExactError(
-              () => instanceOfA.doesNotExist<String, bool>(),
-              "NoSuchMethodError: 'doesNotExist'\n"
-              "Dynamic call of null.\n"
-              "Receiver: ${Error.safeToString(instanceOfA)}\n"
-              "Arguments: []");
-        });
-      });
-      test('setter', () {
-        // Compiled as `dput()`.
-        expectThrowsNSMWithExactError(
-            () => instanceOfA.doesNotExist = 10,
-            "NoSuchMethodError: 'doesNotExist='\n"
-            "method not found\n"
-            "Receiver: ${Error.safeToString(instanceOfA)}\n"
-            "Arguments: [10]");
-      });
-      test('getter', () {
-        // Compiled as `dload()`.
-        expectThrowsNSMWithExactError(
-            () => x = instanceOfA.doesNotExist,
-            "NoSuchMethodError: 'doesNotExist'\n"
-            "method not found\n"
-            "Receiver: ${Error.safeToString(instanceOfA)}\n"
-            "Arguments: []");
-      });
-    });
-    group('tearoff', () {
-      // The code path for throwing NoSuchMethodErrors because of the incorrect
-      // type arguments is shared by all forms of dynamic invocations. Simply
-      // using tearoffs to trigger each form of the error.
-      dynamic arity1Tearoff = arity1;
-      dynamic genericArity2Tearoff = genericArity2;
-      void Function(int, String) instantiatedFn = genericArity2;
-      dynamic instantiatedTearoff = instantiatedFn;
-      test('passing unexpected type arguments', () {
-        // Compiled as `dgcall()` and throws from `checkAndCall()`.
-        expectThrowsNSMWithExactError(
-            () => arity1Tearoff<bool>(42),
-            "NoSuchMethodError: 'arity1'\n"
-            "Dynamic call with unexpected type arguments. "
-            "Expected: 0 Actual: 1\n"
-            "Receiver: ${Error.safeToString(arity1Tearoff)}\n"
-            "Arguments: [42]");
-      });
-      test('passing too many type arguments', () {
-        // Compiled as `dgcall()` and throws from `checkAndCall()`.
-        expectThrowsNSMWithExactError(
-            () => genericArity2Tearoff<int, double, String>(),
-            "NoSuchMethodError: 'genericArity2'\n"
-            "Dynamic call with incorrect number of type arguments. "
-            "Expected: 2 Actual: 3\n"
-            "Receiver: ${Error.safeToString(genericArity2Tearoff)}\n"
-            "Arguments: []");
-      });
-      test('passing too few type arguments', () {
-        // Compiled as `dgcall()` and throws from `checkAndCall()`.
-        expectThrowsNSMWithExactError(
-            () => genericArity2Tearoff<int>(),
-            "NoSuchMethodError: 'genericArity2'\n"
-            "Dynamic call with incorrect number of type arguments. "
-            "Expected: 2 Actual: 1\n"
-            "Receiver: ${Error.safeToString(genericArity2Tearoff)}\n"
-            "Arguments: []");
-      });
-      test('already instantiated and passing type arguments ', () {
-        // Compiled as `dgcall()` and throws from `checkAndCall()`.
-        expectThrowsNSMWithExactError(
-            () => instantiatedTearoff<int, double>(),
-            "NoSuchMethodError: 'result'\n"
-            "Dynamic call with unexpected type arguments. "
-            "Expected: 0 Actual: 2\n"
-            "Receiver: ${Error.safeToString(instantiatedTearoff)}\n"
-            "Arguments: []");
-      });
-    });
-    group('`Function.apply()`', () {
-      Function arity1Tearoff = arity1;
-      Function namedArity1Tearoff = namedArity1;
-      // The code path for throwing NoSuchMethodErrors because of the wrong
-      // number of arguments or incorrect named arguments is shared by all
-      // forms of dynamic invocations. Function.apply used here for simplicity.
-      // Argument errors generated from `_argumentErrors()`.
-      test('passing too many arguments', () {
-        expectThrowsNSMWithExactError(
-            () => Function.apply(arity1Tearoff, [42, false]),
-            "NoSuchMethodError: 'arity1'\n"
-            "Dynamic call with too many arguments. Expected: 1 Actual: 2\n"
-            "Receiver: ${Error.safeToString(arity1Tearoff)}\n"
-            "Arguments: [42, false]");
-      });
-      test('passing too few arguments', () {
-        expectThrowsNSMWithExactError(
-            () => Function.apply(arity1Tearoff, []),
-            "NoSuchMethodError: 'arity1'\n"
-            "Dynamic call with too few arguments. Expected: 1 Actual: 0\n"
-            "Receiver: ${Error.safeToString(arity1Tearoff)}\n"
-            "Arguments: []");
-      });
-      test('passing unexpected named argument', () {
-        expectThrowsNSMWithExactError(
-            () => Function.apply(
-                namedArity1Tearoff, null, {#fosse: true, #cello: true}),
-            "NoSuchMethodError: 'namedArity1'\n"
-            "Dynamic call with unexpected named argument 'cello'.\n"
-            "Receiver: ${Error.safeToString(namedArity1Tearoff)}\n"
-            "Arguments: [fosse: true, cello: true]");
-      });
-    });
-  });
-  group('Descriptors appearing in `NoSuchMethodError` message for ', () {
-    // Some extra tests for the names that appear in all the forms of dynamic
-    // calls. All of these tests pass wrong number of arguments just to trigger
-    // the error message.
-    test('class instance method', () {
-      dynamic instanceOfA = A();
-      Expect.throws<NoSuchMethodError>(() => instanceOfA.arity1(),
-          (error) => error.toString().contains("NoSuchMethodError: 'arity1'"));
-    });
-    test('class instance method tearoff', () {
-      dynamic tearoff = A().arity1;
-      Expect.throws<NoSuchMethodError>(
-          () => tearoff(),
-          (error) =>
-              error.toString().contains("NoSuchMethodError: 'bound arity1'"));
-    });
-    test('class instance generic method', () {
-      dynamic instanceOfA = A();
-      Expect.throws<NoSuchMethodError>(
-          () => instanceOfA.genericArity2(),
-          (error) =>
-              error.toString().contains("NoSuchMethodError: 'genericArity2'"));
-    });
-    test('class instance generic method tearoff', () {
-      dynamic tearoff = A().genericArity2;
-      Expect.throws<NoSuchMethodError>(
-          () => tearoff(10),
-          (error) => error
-              .toString()
-              .contains("NoSuchMethodError: 'bound genericArity2'"));
-    });
-    test('class instance generic method tearoff instantiated', () {
-      void Function(int, String) instantiatedFn = A().genericArity2;
-      dynamic tearoff = instantiatedFn;
-      Expect.throws<NoSuchMethodError>(() => tearoff(),
-          (error) => error.toString().contains("NoSuchMethodError: 'result'"));
-    });
-    test('class instance field', () {
-      dynamic instanceOfA = A();
-      Expect.throws<NoSuchMethodError>(
-          () => instanceOfA.fieldArity1(),
-          (error) =>
-              error.toString().contains("NoSuchMethodError: 'fieldArity1'"));
-    });
-    test('class static method tearoff', () {
-      dynamic tearoff = A.staticArity1;
-      Expect.throws<NoSuchMethodError>(
-          () => tearoff(),
-          (error) =>
-              error.toString().contains("NoSuchMethodError: 'staticArity1'"));
-    });
-    test('class static generic method tearoff', () {
-      dynamic tearoff = A.staticGenericArity2;
-      Expect.throws<NoSuchMethodError>(
-          () => tearoff(),
-          (error) => error
-              .toString()
-              .contains("NoSuchMethodError: 'staticGenericArity2'"));
-    });
-    test('class static generic method tearoff instantiated', () {
-      void Function(int, String) instantiatedFn = A.staticGenericArity2;
-      dynamic tearoff = instantiatedFn;
-      Expect.throws<NoSuchMethodError>(() => tearoff(),
-          (error) => error.toString().contains("NoSuchMethodError: 'result'"));
-    });
-    test('top level method tearoff', () {
-      dynamic tearoff = A.staticArity1;
-      Expect.throws<NoSuchMethodError>(
-          () => tearoff(),
-          (error) =>
-              error.toString().contains("NoSuchMethodError: 'staticArity1'"));
-    });
-    test('top level generic method tearoff', () {
-      dynamic tearoff = genericArity2;
-      Expect.throws<NoSuchMethodError>(
-          () => tearoff(),
-          (error) =>
-              error.toString().contains("NoSuchMethodError: 'genericArity2'"));
-    });
-    test('top level generic method tearoff instantiated', () {
-      void Function(int, String) instantiatedFn = genericArity2;
-      dynamic tearoff = instantiatedFn;
-      Expect.throws<NoSuchMethodError>(() => tearoff(),
-          (error) => error.toString().contains("NoSuchMethodError: 'result'"));
-    });
-    test('top level field', () {
-      Expect.throws<NoSuchMethodError>(() => fieldArity1(),
-          (error) => error.toString().contains("NoSuchMethodError: ''"));
-    });
-  });
-}
diff --git a/tests/dartdevc_2/runtime_utils.dart b/tests/dartdevc_2/runtime_utils.dart
deleted file mode 100644
index 08490951272..00000000000
--- a/tests/dartdevc_2/runtime_utils.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:_runtime' show gFnType, typeRep, isSubtypeOf;
-
-import 'package:expect/expect.dart';
-
-/// Returns an unwrapped generic function type with a bounded type argument in
-/// the form: <T extends [bound]> void -> void.
-///
-// TODO(nshahan): The generic function type is created as a legacy type.
-genericFunction(bound) => gFnType((T) => [typeRep<void>(), []], (T) => [bound]);
-
-/// Returns an unwrapped generic function type with a bounded type argument in
-/// the form: <T extends [bound]> [argumentType] -> T.
-///
-// TODO(nshahan): The generic function type is created as a legacy type.
-functionGenericReturn(bound, argumentType) => gFnType(
-    (T) => [
-          T,
-          [argumentType]
-        ],
-    (T) => [bound]);
-
-/// Returns an unwrapped generic function type with a bounded type argument in
-/// the form: <T extends [bound]> T -> [returnType].
-///
-// TODO(nshahan): The generic function type is created as a legacy type.
-functionGenericArg(bound, returnType) => gFnType(
-    (T) => [
-          returnType,
-          [T]
-        ],
-    (T) => [bound]);
-
-void checkSubtype(s, t) =>
-    Expect.isTrue(isSubtypeOf(s, t), '$s should be subtype of $t.');
-
-void checkProperSubtype(s, t) {
-  Expect.isTrue(isSubtypeOf(s, t), '$s should be subtype of $t.');
-  checkSubtypeFailure(t, s);
-}
-
-void checkMutualSubtype(Object s, Object t) {
-  Expect.isTrue(isSubtypeOf(s, t), '$s should be subtype of $t.');
-  Expect.isTrue(isSubtypeOf(t, s), '$t should be subtype of $s.');
-}
-
-void checkSubtypeFailure(s, t) =>
-    Expect.isFalse(isSubtypeOf(s, t), '$s should not be subtype of $t.');
diff --git a/tests/dartdevc_2/subtype_test.dart b/tests/dartdevc_2/subtype_test.dart
deleted file mode 100644
index 51e0c755ff8..00000000000
--- a/tests/dartdevc_2/subtype_test.dart
+++ /dev/null
@@ -1,150 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.6
-
-import 'dart:_runtime' show typeRep;
-import 'dart:async' show FutureOr;
-
-import 'runtime_utils.dart';
-
-class A {}
-
-class B extends A {}
-
-class C extends B {}
-
-class D<T extends B> {}
-
-class E<T, S> {}
-
-class F extends E<B, B> {}
-
-void main() {
-  // A <: dynamic
-  checkProperSubtype(typeRep<A>(), typeRep<dynamic>());
-  // A <: Object
-  checkProperSubtype(typeRep<A>(), typeRep<Object>());
-  // A <: Object
-  checkProperSubtype(typeRep<A>(), typeRep<void>());
-
-  // Null <: A
-  checkProperSubtype(typeRep<Null>(), typeRep<A>());
-
-  // FutureOr<Null> <: Future<Null>
-  checkSubtype(typeRep<FutureOr<Null>>(), typeRep<Future<Null>>());
-  // Future<Null> <: FutureOr<Null>
-  checkSubtype(typeRep<Future<Null>>(), typeRep<FutureOr<Null>>());
-  // Future<B> <: FutureOr<A>
-  checkProperSubtype(typeRep<Future<B>>(), typeRep<FutureOr<A>>());
-  // B <: <: FutureOr<A>
-  checkProperSubtype(typeRep<B>(), typeRep<FutureOr<A>>());
-  // Future<B> <: Future<A>
-  checkProperSubtype(typeRep<Future<B>>(), typeRep<Future<A>>());
-  // B <: A
-  checkProperSubtype(typeRep<B>(), typeRep<A>());
-
-  // A <: A
-  checkSubtype(typeRep<A>(), typeRep<A>());
-  // C <: B
-  checkProperSubtype(typeRep<C>(), typeRep<B>());
-  // C <: A
-  checkProperSubtype(typeRep<C>(), typeRep<A>());
-
-  // A -> B <: Function
-  checkProperSubtype(typeRep<B Function(A)>(), typeRep<Function>());
-
-  // A -> B <: A -> B
-  checkSubtype(typeRep<B Function(A)>(), typeRep<B Function(A)>());
-
-  // A -> B <: B -> B
-  checkProperSubtype(typeRep<B Function(A)>(), typeRep<B Function(B)>());
-
-  // A -> B <: A -> A
-  checkSubtype(typeRep<B Function(A)>(), typeRep<A Function(A)>());
-
-  // Generic Function Subtypes.
-  // Bound is a built in type.
-  // <T extends int> void -> void <: <T extends int> void -> void
-  checkSubtype(
-      genericFunction(typeRep<int>()), genericFunction(typeRep<int>()));
-
-  // <T extends String> A -> T <: <T extends String> B -> T
-  checkProperSubtype(functionGenericReturn(typeRep<String>(), typeRep<A>()),
-      functionGenericReturn(typeRep<String>(), typeRep<B>()));
-
-  // <T extends double> T -> B <: <T extends double> T -> A
-  checkProperSubtype(functionGenericArg(typeRep<double>(), typeRep<B>()),
-      functionGenericArg(typeRep<double>(), typeRep<A>()));
-
-  // Bound is a function type.
-  // <T extends A -> B> void -> void <: <T extends A -> B> void -> void
-  checkSubtype(genericFunction(typeRep<B Function(A)>()),
-      genericFunction(typeRep<B Function(A)>()));
-
-  // <T extends A -> B> A -> T <: <T extends A -> B> B -> T
-  checkProperSubtype(
-      functionGenericReturn(typeRep<B Function(A)>(), typeRep<A>()),
-      functionGenericReturn(typeRep<B Function(A)>(), typeRep<B>()));
-
-  // <T extends A -> B> T -> B <: <T extends A -> B> T -> A
-  checkProperSubtype(functionGenericArg(typeRep<B Function(A)>(), typeRep<B>()),
-      functionGenericArg(typeRep<B Function(A)>(), typeRep<A>()));
-
-  // Bound is a user defined class.
-  // <T extends B> void -> void <: <T extends B> void -> void
-  checkSubtype(genericFunction(typeRep<B>()), genericFunction(typeRep<B>()));
-
-  // <T extends B> A -> T <: <T extends B> B -> T
-  checkProperSubtype(functionGenericReturn(typeRep<B>(), typeRep<A>()),
-      functionGenericReturn(typeRep<B>(), typeRep<B>()));
-
-  // <T extends B> T -> B <: <T extends B> T -> A
-  checkProperSubtype(functionGenericArg(typeRep<B>(), typeRep<B>()),
-      functionGenericArg(typeRep<B>(), typeRep<A>()));
-
-  // Bound is a Future.
-  // <T extends Future<B>> void -> void <: <T extends Future<B>> void -> void
-  checkSubtype(genericFunction(typeRep<Future<B>>()),
-      genericFunction(typeRep<Future<B>>()));
-
-  // <T extends Future<B>> A -> T <: <T extends Future<B>> B -> T
-  checkProperSubtype(functionGenericReturn(typeRep<Future<B>>(), typeRep<A>()),
-      functionGenericReturn(typeRep<Future<B>>(), typeRep<B>()));
-
-  // <T extends Future<B>> T -> B <: <T extends Future<B>> T -> A
-  checkProperSubtype(functionGenericArg(typeRep<Future<B>>(), typeRep<B>()),
-      functionGenericArg(typeRep<Future<B>>(), typeRep<A>()));
-
-  // Bound is a FutureOr.
-  // <T extends FutureOr<B>> void -> void <:
-  //    <T extends FutureOr<B>> void -> void
-  checkSubtype(genericFunction(typeRep<FutureOr<B>>()),
-      genericFunction(typeRep<FutureOr<B>>()));
-
-  // <T extends FutureOr<B>> A -> T <: <T extends FutureOr<B>> B -> T
-  checkProperSubtype(
-      functionGenericReturn(typeRep<FutureOr<B>>(), typeRep<A>()),
-      functionGenericReturn(typeRep<FutureOr<B>>(), typeRep<B>()));
-
-  // <T extends FutureOr<B>> T -> B <: <T extends FutureOr<B>> T -> A
-  checkProperSubtype(functionGenericArg(typeRep<FutureOr<B>>(), typeRep<B>()),
-      functionGenericArg(typeRep<FutureOr<B>>(), typeRep<A>()));
-
-  // D <: D<B>
-  checkSubtype(typeRep<D>(), typeRep<D<B>>());
-  // D<B> <: D
-  checkSubtype(typeRep<D<B>>(), typeRep<D>());
-  // D<C> <: D<B>
-  checkSubtype(typeRep<D<C>>(), typeRep<D<B>>());
-
-  // F <: E
-  checkProperSubtype(typeRep<F>(), typeRep<E>());
-  // F <: E<A, A>
-  checkProperSubtype(typeRep<F>(), typeRep<E<A, A>>());
-  // E<B, B> <: E
-  checkProperSubtype(typeRep<E<B, B>>(), typeRep<E>());
-  // // E<B, B> <: E<A, A>
-  checkProperSubtype(typeRep<E<B, B>>(), typeRep<E<A, A>>());
-}
diff --git a/tests/dartdevc_2/utils.dart b/tests/dartdevc_2/utils.dart
deleted file mode 100644
index dff17dc7ab1..00000000000
--- a/tests/dartdevc_2/utils.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.6
-
-import "package:expect/expect.dart";
-
-/// Expects that [expected] appears as a substring in [actual].
-expectStringContains(String expected, String actual) {
-  Expect.isTrue(actual.contains(expected),
-      'Failure: "$expected" should appear in: "$actual".');
-}
diff --git a/tests/ffi/ffi_native_test.dart b/tests/ffi/ffi_native_test.dart
index 99a22fee74d..0ed8f9b56f2 100644
--- a/tests/ffi/ffi_native_test.dart
+++ b/tests/ffi/ffi_native_test.dart
@@ -2,9 +2,6 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// NOTE: There is no `test/ffi_2/...` version of this test since annotations
-// with type arguments isn't supported in that version of Dart.
-
 import 'dart:ffi';
 import 'dart:nativewrappers';
 
diff --git a/tests/ffi/generator/structs_by_value_tests_generator.dart b/tests/ffi/generator/structs_by_value_tests_generator.dart
index 6a29690b8ed..3df50b7a6a3 100644
--- a/tests/ffi/generator/structs_by_value_tests_generator.dart
+++ b/tests/ffi/generator/structs_by_value_tests_generator.dart
@@ -1048,6 +1048,7 @@ import 'dart:ffi';
 """;
 }
 
+// TODO: Remove non-nnbd support.
 String compoundsPath({required bool isNnbd}) {
   final folder = isNnbd ? 'ffi' : 'ffi_2';
   return Platform.script
diff --git a/tests/ffi/vmspecific_ffi_native_test.dart b/tests/ffi/vmspecific_ffi_native_test.dart
index 177192be9cc..1ad52da3928 100644
--- a/tests/ffi/vmspecific_ffi_native_test.dart
+++ b/tests/ffi/vmspecific_ffi_native_test.dart
@@ -4,9 +4,6 @@
 //
 // SharedObjects=ffi_test_functions
 
-// NOTE: There is no `test/ffi_2/...` version of this test since annotations
-// with type arguments isn't supported in that version of Dart.
-
 import 'dart:ffi';
 import 'dart:nativewrappers';
 
diff --git a/tests/ffi/vmspecific_static_checks_ffinative_test.dart b/tests/ffi/vmspecific_static_checks_ffinative_test.dart
index 221a03104fc..de292ff1f4c 100644
--- a/tests/ffi/vmspecific_static_checks_ffinative_test.dart
+++ b/tests/ffi/vmspecific_static_checks_ffinative_test.dart
@@ -2,9 +2,6 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// NOTE: There is no `test/ffi_2/...` version of this test since annotations
-// with type arguments isn't supported in that version of Dart.
-
 import 'dart:ffi';
 import 'dart:nativewrappers';
 
diff --git a/tests/ffi_2/abi_specific_int_incomplete_aot_test.dart b/tests/ffi_2/abi_specific_int_incomplete_aot_test.dart
deleted file mode 100644
index 84296529abf..00000000000
--- a/tests/ffi_2/abi_specific_int_incomplete_aot_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// SharedObjects=ffi_test_functions
-
-import 'dart:ffi';
-
-// We want at least 1 mapping to satisfy the static checks.
-const notTestingOn = Abi.fuchsiaArm64;
-
-@AbiSpecificIntegerMapping({
-  notTestingOn: Int8(),
-})
-class Incomplete extends AbiSpecificInteger {
-  const Incomplete();
-}
-
-void main() {
-  // Any use that causes the class to be used, causes a compile-time error
-  // during loading of the class.
-  nullptr.cast<Incomplete>(); //# 1: compile-time error
-}
diff --git a/tests/ffi_2/abi_specific_int_incomplete_jit_test.dart b/tests/ffi_2/abi_specific_int_incomplete_jit_test.dart
deleted file mode 100644
index b15274e4cfb..00000000000
--- a/tests/ffi_2/abi_specific_int_incomplete_jit_test.dart
+++ /dev/null
@@ -1,138 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// SharedObjects=ffi_test_functions
-
-import 'dart:ffi';
-
-import 'package:expect/expect.dart';
-import 'package:ffi/ffi.dart';
-
-// We want at least 1 mapping to satisfy the static checks.
-const notTestingOn = Abi.fuchsiaArm64;
-
-@AbiSpecificIntegerMapping({
-  notTestingOn: Int8(),
-})
-class Incomplete extends AbiSpecificInteger {
-  const Incomplete();
-}
-
-void main() {
-  if (Abi.current() == notTestingOn) {
-    return;
-  }
-  testSizeOf();
-  testStoreLoad();
-  testStoreLoadIndexed();
-  testStruct();
-  testInlineArray();
-  testInlineArray2();
-  testAsFunction();
-}
-
-void testSizeOf() {
-  Expect.throws(() {
-    sizeOf<Incomplete>();
-  });
-}
-
-void testStoreLoad() {
-  final p = calloc<Int64>().cast<Incomplete>();
-  Expect.throws(() {
-    p.value = 10;
-  });
-  Expect.throws(() {
-    p.value;
-  });
-  calloc.free(p);
-}
-
-void testStoreLoadIndexed() {
-  final p = calloc<Int64>().cast<Incomplete>();
-  Expect.throws(() {
-    p[0] = 10;
-  });
-  Expect.throws(() {
-    p[1];
-  });
-  calloc.free(p);
-}
-
-class IncompleteStruct extends Struct {
-  @Incomplete()
-  int a0;
-
-  @Incomplete()
-  int a1;
-}
-
-void testStruct() {
-  final p = calloc<Int64>(2).cast<IncompleteStruct>();
-  Expect.throws(() {
-    p.ref.a0 = 1;
-  });
-  Expect.throws(() {
-    p.ref.a0;
-  });
-  calloc.free(p);
-}
-
-class IncompleteArrayStruct extends Struct {
-  @Array(100)
-  Array<Incomplete> a0;
-}
-
-void testInlineArray() {
-  final p = calloc<Int64>(100).cast<IncompleteArrayStruct>();
-  final array = p.ref.a0;
-  Expect.throws(() {
-    array[3] = 4;
-  });
-  Expect.throws(() {
-    array[3];
-  });
-  calloc.free(p);
-}
-
-const _dim1 = 8;
-const _dim2 = 4;
-
-class IncompleteArrayArrayStruct extends Struct {
-  @Array(_dim1, _dim2)
-  Array<Array<Incomplete>> a0;
-}
-
-void testInlineArray2() {
-  final p = calloc<Int64>(100).cast<IncompleteArrayArrayStruct>();
-  Expect.throws(() {
-    p.elementAt(3);
-  });
-  calloc.free(p);
-}
-
-void testAsFunction() {
-  Expect.throws(() {
-    nullptr
-        .cast<NativeFunction<Int32 Function(Incomplete)>>()
-        .asFunction<int Function(int)>();
-  });
-  Expect.throws(() {
-    nullptr
-        .cast<NativeFunction<Incomplete Function(Int32)>>()
-        .asFunction<int Function(int)>();
-  });
-  Expect.throws(() {
-    nullptr
-        .cast<NativeFunction<Int32 Function(IncompleteArrayStruct)>>()
-        .asFunction<int Function(IncompleteArrayStruct)>();
-  });
-  Expect.throws(() {
-    nullptr
-        .cast<NativeFunction<IncompleteArrayStruct Function()>>()
-        .asFunction<IncompleteArrayStruct Function()>();
-  });
-}
diff --git a/tests/ffi_2/abi_specific_int_test.dart b/tests/ffi_2/abi_specific_int_test.dart
deleted file mode 100644
index 57daa3f3cf0..00000000000
--- a/tests/ffi_2/abi_specific_int_test.dart
+++ /dev/null
@@ -1,112 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:ffi';
-import 'dart:io';
-
-import 'package:expect/expect.dart';
-import 'package:ffi/ffi.dart';
-
-void main() {
-  testSizeOf();
-  testStoreLoad();
-  testStoreLoadIndexed();
-  testStruct();
-  testInlineArray();
-  testInlineArray2();
-}
-
-void testSizeOf() {
-  final size = sizeOf<WChar>();
-  if (Platform.isWindows) {
-    Expect.equals(2, size);
-  } else {
-    Expect.equals(4, size);
-  }
-}
-
-void testStoreLoad() {
-  final p = calloc<WChar>();
-  p.value = 10;
-  Expect.equals(10, p.value);
-  calloc.free(p);
-}
-
-void testStoreLoadIndexed() {
-  final p = calloc<WChar>(2);
-  p[0] = 10;
-  p[1] = 3;
-  Expect.equals(10, p[0]);
-  Expect.equals(3, p[1]);
-  calloc.free(p);
-}
-
-class WCharStruct extends Struct {
-  @WChar()
-  int a0;
-
-  @WChar()
-  int a1;
-}
-
-void testStruct() {
-  final p = calloc<WCharStruct>();
-  p.ref.a0 = 1;
-  Expect.equals(1, p.ref.a0);
-  p.ref.a0 = 2;
-  Expect.equals(2, p.ref.a0);
-  calloc.free(p);
-}
-
-class WCharArrayStruct extends Struct {
-  @Array(100)
-  Array<WChar> a0;
-}
-
-void testInlineArray() {
-  final p = calloc<WCharArrayStruct>();
-  final array = p.ref.a0;
-  for (int i = 0; i < 100; i++) {
-    array[i] = i;
-  }
-  for (int i = 0; i < 100; i++) {
-    Expect.equals(i, array[i]);
-  }
-  calloc.free(p);
-}
-
-const _dim0 = 3;
-const _dim1 = 8;
-const _dim2 = 4;
-
-class WCharArrayArrayStruct extends Struct {
-  @Array(_dim1, _dim2)
-  Array<Array<WChar>> a0;
-}
-
-void testInlineArray2() {
-  int someValue(int a, int b, int c) => a * 1337 + b * 42 + c;
-  final p = calloc<WCharArrayArrayStruct>(_dim0);
-  for (int i0 = 0; i0 < _dim0; i0++) {
-    final array = p.elementAt(i0).ref.a0;
-    for (int i1 = 0; i1 < _dim1; i1++) {
-      final array2 = array[i1];
-      for (int i2 = 0; i2 < _dim2; i2++) {
-        array2[i2] = someValue(i0, i1, i2);
-      }
-    }
-  }
-  for (int i0 = 0; i0 < _dim0; i0++) {
-    final array = p.elementAt(i0).ref.a0;
-    for (int i1 = 0; i1 < _dim1; i1++) {
-      final array2 = array[i1];
-      for (int i2 = 0; i2 < _dim2; i2++) {
-        Expect.equals(someValue(i0, i1, i2), array2[i2]);
-      }
-    }
-  }
-  calloc.free(p);
-}
diff --git a/tests/ffi_2/abi_test.dart b/tests/ffi_2/abi_test.dart
deleted file mode 100644
index d9c152e1b94..00000000000
--- a/tests/ffi_2/abi_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:ffi';
-import 'dart:io';
-
-import 'package:expect/expect.dart';
-
-void main() {
-  testCurrent();
-  testPlatformVersionCompatibility();
-}
-
-void testCurrent() {
-  final currentAbi = Abi.current();
-  Expect.isTrue(Abi.values.contains(currentAbi));
-}
-
-void testPlatformVersionCompatibility() {
-  final abiStringFromPlatformVersion = Platform.version.split('"')[1];
-  final abiStringFromCurrent = Abi.current().toString();
-  Expect.equals(abiStringFromPlatformVersion, abiStringFromCurrent);
-}
diff --git a/tests/ffi_2/aliasing_test.dart b/tests/ffi_2/aliasing_test.dart
deleted file mode 100644
index c3825d80432..00000000000
--- a/tests/ffi_2/aliasing_test.dart
+++ /dev/null
@@ -1,214 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test programing for testing that optimizations do wrongly assume loads
-// from and stores to C memory are not aliased.
-//
-// SharedObjects=ffi_test_functions
-// VMOptions=--deterministic --optimization-counter-threshold=50
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:ffi/ffi.dart";
-import "package:expect/expect.dart";
-
-import 'ffi_test_helpers.dart';
-
-void main() {
-  for (int i = 0; i < 100; ++i) {
-    testNonAlias();
-    testAliasCast();
-    testAliasCast2();
-    testAliasOffsetBy();
-    testAliasOffsetBy2();
-    testAliasElementAt();
-    testAliasElementAt2();
-    testAliasFromAddress();
-    testAliasFromAddress2();
-    testAliasFromAddressViaMemory();
-    testAliasFromAddressViaMemory2();
-    testAliasFromAddressViaNativeFunction();
-    testAliasFromAddressViaNativeFunction2();
-    testPartialOverlap();
-  }
-}
-
-void testNonAlias() {
-  final source = calloc<Int64>();
-  source.value = 42;
-  final int a = source.value;
-  source.value = 1984;
-  // alias.value should be re-executed, as we wrote to alias.
-  Expect.notEquals(a, source.value);
-  calloc.free(source);
-}
-
-void testAliasCast() {
-  final source = calloc<Int64>();
-  final alias = source.cast<Int8>().cast<Int64>();
-  source.value = 42;
-  final int a = source.value;
-  alias.value = 1984;
-  // source.value should be re-executed, we wrote alias which aliases source.
-  Expect.notEquals(a, source.value);
-  calloc.free(source);
-}
-
-void testAliasCast2() {
-  final source = calloc<Int64>();
-  final alias = source.cast<Int16>().cast<Int64>();
-  final alias2 = source.cast<Int8>().cast<Int64>();
-  alias.value = 42;
-  final int a = alias.value;
-  alias2.value = 1984;
-  // alias.value should be re-executed, we wrote alias2 which aliases alias.
-  Expect.notEquals(a, alias.value);
-  calloc.free(source);
-}
-
-void testAliasOffsetBy() {
-  final source = calloc<Int64>(2);
-  final alias = source.offsetBy(8).offsetBy(-8);
-  source.value = 42;
-  final int a = source.value;
-  alias.value = 1984;
-  // source.value should be re-executed, we wrote alias which aliases source.
-  Expect.notEquals(a, source.value);
-  calloc.free(source);
-}
-
-void testAliasOffsetBy2() {
-  final source = calloc<Int64>(3);
-  final alias = source.offsetBy(16).offsetBy(-16);
-  final alias2 = source.offsetBy(8).offsetBy(-8);
-  alias.value = 42;
-  final int a = alias.value;
-  alias2.value = 1984;
-  // alias.value should be re-executed, we wrote alias2 which aliases alias.
-  Expect.notEquals(a, alias.value);
-  calloc.free(source);
-}
-
-void testAliasElementAt() {
-  final source = calloc<Int64>(2);
-  final alias = source.elementAt(1).elementAt(-1);
-  source.value = 42;
-  final int a = source.value;
-  alias.value = 1984;
-  // source.value should be re-executed, we wrote alias which aliases source.
-  Expect.notEquals(a, source.value);
-  calloc.free(source);
-}
-
-void testAliasElementAt2() {
-  final source = calloc<Int64>(3);
-  final alias = source.elementAt(2).elementAt(-2);
-  final alias2 = source.elementAt(1).elementAt(-1);
-  alias.value = 42;
-  final int a = alias.value;
-  alias2.value = 1984;
-  // alias.value should be re-executed, we wrote alias2 which aliases alias.
-  Expect.notEquals(a, alias.value);
-  calloc.free(source);
-}
-
-void testAliasFromAddress() {
-  final source = calloc<Int64>();
-  final alias = Pointer<Int64>.fromAddress(source.address);
-  source.value = 42;
-  final int a = source.value;
-  alias.value = 1984;
-  // source.value should be re-executed, we wrote alias which aliases source.
-  Expect.notEquals(a, source.value);
-  calloc.free(source);
-}
-
-void testAliasFromAddress2() {
-  final source = calloc<Int64>();
-  final alias = Pointer<Int64>.fromAddress(source.address);
-  final alias2 = Pointer<Int64>.fromAddress(source.address);
-  alias.value = 42;
-  final int a = alias.value;
-  alias2.value = 1984;
-  // alias.value should be re-executed, we wrote alias2 which aliases alias.
-  Expect.notEquals(a, alias.value);
-  calloc.free(source);
-}
-
-void testAliasFromAddressViaMemory() {
-  final helper = calloc<IntPtr>();
-  final source = calloc<Int64>();
-  helper.value = source.address;
-  final alias = Pointer<Int64>.fromAddress(helper.value);
-  source.value = 42;
-  final int a = source.value;
-  alias.value = 1984;
-  // source.value should be re-executed, we wrote alias which aliases source.
-  Expect.notEquals(a, source.value);
-  calloc.free(helper);
-  calloc.free(source);
-}
-
-void testAliasFromAddressViaMemory2() {
-  final helper = calloc<IntPtr>();
-  final source = calloc<Int64>();
-  helper.value = source.address;
-  final alias = Pointer<Int64>.fromAddress(helper.value);
-  final alias2 = Pointer<Int64>.fromAddress(helper.value);
-  alias.value = 42;
-  final int a = alias.value;
-  alias2.value = 1984;
-  // alias.value should be re-executed, we wrote alias2 which aliases alias.
-  Expect.notEquals(a, alias.value);
-  calloc.free(helper);
-  calloc.free(source);
-}
-
-typedef NativeQuadOpSigned = Int64 Function(Int8, Int16, Int32, Int64);
-typedef QuadOp = int Function(int, int, int, int);
-
-QuadOp intComputation = ffiTestFunctions
-    .lookupFunction<NativeQuadOpSigned, QuadOp>("IntComputation");
-
-void testAliasFromAddressViaNativeFunction() {
-  final source = calloc<Int64>();
-  final alias =
-      Pointer<Int64>.fromAddress(intComputation(0, 0, 0, source.address));
-  source.value = 42;
-  final int a = source.value;
-  alias.value = 1984;
-  // source.value should be re-executed, we wrote alias which aliases source.
-  Expect.notEquals(a, source.value);
-  calloc.free(source);
-}
-
-void testAliasFromAddressViaNativeFunction2() {
-  final source = calloc<Int64>();
-  final alias =
-      Pointer<Int64>.fromAddress(intComputation(0, 0, 0, source.address));
-  final alias2 =
-      Pointer<Int64>.fromAddress(intComputation(0, 0, 0, source.address));
-  alias.value = 42;
-  final int a = alias.value;
-  alias2.value = 1984;
-  // alias.value should be re-executed, we wrote alias2 which aliases alias.
-  Expect.notEquals(a, alias.value);
-  calloc.free(source);
-}
-
-@pragma('vm:never-inline')
-Pointer<Int8> makeDerived(Pointer<Int64> source) =>
-    source.offsetBy(7).cast<Int8>();
-
-testPartialOverlap() {
-  final source = calloc<Int64>(2);
-  final derived = makeDerived(source);
-  source.value = 0x1122334455667788;
-  final int value = source.value;
-  derived.value = 0xaa;
-  Expect.notEquals(value, source.value);
-  calloc.free(source);
-}
diff --git a/tests/ffi_2/all_positive.dart b/tests/ffi_2/all_positive.dart
deleted file mode 100644
index a6810b66635..00000000000
--- a/tests/ffi_2/all_positive.dart
+++ /dev/null
@@ -1,104 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Generated by prepare_flutter_bundle.dart and not ignoring vmspecific.
-// Used in fuchsia_test_component.
-//
-// Note that we are not using any VM flags here, so we are not exercising GC
-// corner cases etc. However, we are mainly interested in exercising the
-// calling convention on Fuchsia.
-
-import "dart:async";
-
-import "aliasing_test.dart" as main0;
-import "data_not_asan_test.dart" as main1;
-import "data_test.dart" as main2;
-import "dylib_isolates_test.dart" as main3;
-import "extension_methods_test.dart" as main4;
-import "external_typed_data_test.dart" as main5;
-import "function_callbacks_many_test.dart" as main6;
-import "function_callbacks_test.dart" as main7;
-import "function_callbacks_very_many_test.dart" as main8;
-import "function_structs_test.dart" as main9;
-import "function_test.dart" as main10;
-import "function_very_many_test.dart" as main11;
-import "hardfp_test.dart" as main12;
-import "negative_function_test.dart" as main13;
-import "null_regress_39068_test.dart" as main14;
-import "null_test.dart" as main15;
-import "regress_37254_test.dart" as main16;
-import "regress_39044_test.dart" as main17;
-import "regress_39063_test.dart" as main18;
-import "regress_39885_test.dart" as main19;
-import "regress_40537_test.dart" as main20;
-import "regress_43016_test.dart" as main21;
-import "regress_43693_test.dart" as main22;
-import "regress_jump_to_frame_test.dart" as main23;
-import "sizeof_test.dart" as main24;
-import "snapshot_test.dart" as main25;
-import "stacktrace_regress_37910_test.dart" as main26;
-import "structs_test.dart" as main27;
-import "variance_function_test.dart" as main28;
-import "vmspecific_function_callbacks_exit_test.dart" as main29;
-import "vmspecific_function_test.dart" as main30;
-import "vmspecific_handle_dynamically_linked_test.dart" as main31;
-import "vmspecific_handle_test.dart" as main32;
-import "vmspecific_null_test.dart" as main33;
-import "vmspecific_object_gc_test.dart" as main34;
-import "vmspecific_regress_37100_test.dart" as main35;
-import "vmspecific_regress_37511_callbacks_test.dart" as main36;
-import "vmspecific_regress_37511_test.dart" as main37;
-import "vmspecific_regress_37780_test.dart" as main38;
-
-Future invoke(dynamic fun) async {
-  if (fun is void Function() || fun is Future Function()) {
-    return await fun();
-  } else {
-    return await fun(<String>[]);
-  }
-}
-
-dynamic main() async {
-  await invoke(main0.main);
-  await invoke(main1.main);
-  await invoke(main2.main);
-  await invoke(main3.main);
-  await invoke(main4.main);
-  await invoke(main5.main);
-  await invoke(main6.main);
-  await invoke(main7.main);
-  await invoke(main8.main);
-  await invoke(main9.main);
-  await invoke(main10.main);
-  await invoke(main11.main);
-  await invoke(main12.main);
-  await invoke(main13.main);
-  await invoke(main14.main);
-  await invoke(main15.main);
-  await invoke(main16.main);
-  await invoke(main17.main);
-  await invoke(main18.main);
-  await invoke(main19.main);
-  await invoke(main20.main);
-  await invoke(main21.main);
-  await invoke(main22.main);
-  await invoke(main23.main);
-  await invoke(main24.main);
-  await invoke(main25.main);
-  await invoke(main26.main);
-  await invoke(main27.main);
-  await invoke(main28.main);
-  await invoke(main29.main);
-  await invoke(main30.main);
-  await invoke(main31.main);
-  await invoke(main32.main);
-  await invoke(main33.main);
-  await invoke(main34.main);
-  await invoke(main35.main);
-  await invoke(main36.main);
-  await invoke(main37.main);
-  await invoke(main38.main);
-}
diff --git a/tests/ffi_2/allocator_test.dart b/tests/ffi_2/allocator_test.dart
deleted file mode 100644
index 8bbc1b0a31d..00000000000
--- a/tests/ffi_2/allocator_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that we can implement the Allocator interface.
-
-import 'dart:ffi';
-
-class MyAllocator implements Allocator {
-  const MyAllocator();
-
-  @override
-  Pointer<T> allocate<T extends NativeType>(int numBytes, {int alignment}) {
-    throw "Not implemented";
-  }
-
-  void free(Pointer pointer) {}
-}
-
-const myAllocator = MyAllocator();
-
-void main() {
-  print(myAllocator);
-}
diff --git a/tests/ffi_2/analysis_options.yaml b/tests/ffi_2/analysis_options.yaml
deleted file mode 100644
index f8701d72382..00000000000
--- a/tests/ffi_2/analysis_options.yaml
+++ /dev/null
@@ -1,3 +0,0 @@
-analyzer:
-  exclude:
-    # Do analyze this subfolder in the tests/ even if tests/ is fully excluded.
diff --git a/tests/ffi_2/bool_test.dart b/tests/ffi_2/bool_test.dart
deleted file mode 100644
index 36af8a8b3bd..00000000000
--- a/tests/ffi_2/bool_test.dart
+++ /dev/null
@@ -1,91 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program for testing dart:ffi bools.
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
-
-import 'function_structs_by_value_generated_compounds.dart';
-
-void main() {
-  testSizeOf();
-  testStoreLoad();
-  testStoreLoadIndexed();
-  testStruct();
-  testStruct2();
-  testInlineArray();
-}
-
-void testSizeOf() {
-  Expect.equals(1, sizeOf<Bool>());
-}
-
-void testStoreLoad() {
-  final p = calloc<Bool>();
-  p.value = true;
-  Expect.equals(true, p.value);
-  p.value = false;
-  Expect.equals(false, p.value);
-  calloc.free(p);
-}
-
-void testStoreLoadIndexed() {
-  final p = calloc<Bool>(2);
-  p[0] = true;
-  p[1] = false;
-  Expect.equals(true, p[0]);
-  Expect.equals(false, p[1]);
-  calloc.free(p);
-}
-
-void testStruct() {
-  final p = calloc<Struct1ByteBool>();
-  p.ref.a0 = true;
-  Expect.equals(true, p.ref.a0);
-  p.ref.a0 = false;
-  Expect.equals(false, p.ref.a0);
-  calloc.free(p);
-}
-
-void testStruct2() {
-  final p = calloc<Struct10BytesHomogeneousBool>();
-  p.ref.a0 = true;
-  p.ref.a1 = false;
-  p.ref.a2 = true;
-  p.ref.a3 = false;
-  p.ref.a4 = true;
-  p.ref.a5 = false;
-  p.ref.a6 = true;
-  p.ref.a7 = false;
-  p.ref.a8 = true;
-  p.ref.a9 = false;
-  Expect.equals(true, p.ref.a0);
-  Expect.equals(false, p.ref.a1);
-  Expect.equals(true, p.ref.a2);
-  Expect.equals(false, p.ref.a3);
-  Expect.equals(true, p.ref.a4);
-  Expect.equals(false, p.ref.a5);
-  Expect.equals(true, p.ref.a6);
-  Expect.equals(false, p.ref.a7);
-  Expect.equals(true, p.ref.a8);
-  Expect.equals(false, p.ref.a9);
-  calloc.free(p);
-}
-
-void testInlineArray() {
-  final p = calloc<Struct10BytesInlineArrayBool>();
-  final array = p.ref.a0;
-  for (int i = 0; i < 10; i++) {
-    array[i] = i % 2 == 0;
-  }
-  for (int i = 0; i < 10; i++) {
-    Expect.equals(i % 2 == 0, array[i]);
-  }
-  calloc.free(p);
-}
diff --git a/tests/ffi_2/c_types_test.dart b/tests/ffi_2/c_types_test.dart
deleted file mode 100644
index 7a651ce8c37..00000000000
--- a/tests/ffi_2/c_types_test.dart
+++ /dev/null
@@ -1,231 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Tests the sizes of c types from https://dartbug.com/36140.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-import 'dart:io' show Platform;
-
-import 'package:expect/expect.dart';
-import 'package:ffi/ffi.dart';
-
-import 'ffi_test_helpers.dart';
-
-void main() {
-  printSizes();
-  testSizes();
-  testIntAssumptions();
-  testSizeTAssumptions();
-  testLongAssumptions();
-  testWCharTAssumptions();
-}
-
-class CType {
-  final int ffiSize;
-  final int Function(Pointer) ffiLoad;
-  final String modifier;
-  final String type;
-  final String type2;
-
-  CType(this.ffiSize, this.type,
-      {this.type2 = '', this.modifier = '', this.ffiLoad});
-
-  String get cRepresentation => '$modifier $type $type2'.trim();
-
-  String get _getSizeName => 'FfiSizeOf_$modifier\_$type\_$type2';
-
-  String get _getSignName => 'FfiSignOf_$modifier\_$type\_$type2';
-
-  int Function() get sizeFunction => ffiTestFunctions
-      .lookupFunction<Uint64 Function(), int Function()>(_getSizeName);
-
-  int Function() get signFunction => ffiTestFunctions
-      .lookupFunction<Uint64 Function(), int Function()>(_getSignName);
-
-  int get size => sizeFunction();
-
-  bool get isSigned => signFunction() != 0;
-
-  bool get ffiIsSigned {
-    final ffiLoad_ = ffiLoad;
-    if (ffiLoad_ == null) {
-      return null;
-    }
-    assert(size < 8);
-    return using((Arena arena) {
-      final p = arena<Int64>()..value = -1;
-      return ffiLoad_(p) < 0;
-    });
-  }
-
-  String toString() => cRepresentation;
-}
-
-final char = CType(
-  sizeOf<Char>(),
-  'char',
-  ffiLoad: (Pointer p) => p.cast<Char>().value,
-);
-final uchar = CType(
-  sizeOf<UnsignedChar>(),
-  'char',
-  modifier: 'unsigned',
-  ffiLoad: (Pointer p) => p.cast<UnsignedChar>().value,
-);
-final schar = CType(
-  sizeOf<SignedChar>(),
-  'char',
-  modifier: 'signed',
-  ffiLoad: (Pointer p) => p.cast<SignedChar>().value,
-);
-final short = CType(
-  sizeOf<Short>(),
-  'short',
-  ffiLoad: (Pointer p) => p.cast<Short>().value,
-);
-final ushort = CType(
-  sizeOf<UnsignedShort>(),
-  'short',
-  modifier: 'unsigned',
-  ffiLoad: (Pointer p) => p.cast<UnsignedShort>().value,
-);
-final int_ = CType(
-  sizeOf<Int>(),
-  'int',
-  ffiLoad: (Pointer p) => p.cast<Int>().value,
-);
-final uint = CType(
-  sizeOf<UnsignedInt>(),
-  'int',
-  modifier: 'unsigned',
-  ffiLoad: (Pointer p) => p.cast<UnsignedInt>().value,
-);
-final long = CType(
-  sizeOf<Long>(),
-  'long',
-);
-final ulong = CType(
-  sizeOf<UnsignedLong>(),
-  'long',
-  modifier: 'unsigned',
-);
-final longlong = CType(
-  sizeOf<LongLong>(),
-  'long',
-  type2: 'long',
-);
-final ulonglong = CType(
-  sizeOf<UnsignedLongLong>(),
-  'long',
-  type2: 'long',
-  modifier: 'unsigned',
-);
-final intptr_t = CType(
-  sizeOf<IntPtr>(),
-  'intptr_t',
-);
-final uintptr_t = CType(
-  sizeOf<UintPtr>(),
-  'uintptr_t',
-);
-final size_t = CType(
-  sizeOf<Size>(),
-  'size_t',
-);
-final wchar_t = CType(
-  sizeOf<WChar>(),
-  'wchar_t',
-  ffiLoad: (Pointer p) => p.cast<WChar>().value,
-);
-
-final cTypes = [
-  char,
-  uchar,
-  schar,
-  short,
-  ushort,
-  int_,
-  uint,
-  long,
-  ulong,
-  longlong,
-  ulonglong,
-  intptr_t,
-  uintptr_t,
-  size_t,
-  wchar_t,
-];
-
-void printSizes() {
-  cTypes.forEach((element) {
-    final cName = element.cRepresentation.padRight(20);
-    final size = element.size;
-    final signed = element.isSigned ? 'signed' : 'unsigned';
-    print('$cName: $size $signed');
-  });
-}
-
-void testSizes() {
-  cTypes.forEach((element) {
-    print(element);
-    Expect.equals(element.size, element.ffiSize);
-    final ffiIsSigned = element.ffiIsSigned;
-    if (ffiIsSigned != null) {
-      Expect.equals(element.isSigned, ffiIsSigned);
-    }
-  });
-}
-
-void testIntAssumptions() {
-  Expect.equals(4, int_.size);
-  Expect.equals(4, uint.size);
-}
-
-void testSizeTAssumptions() {
-  Expect.equals(intptr_t.size, size_t.size);
-}
-
-void testLongAssumptions() {
-  if (Platform.isWindows) {
-    Expect.equals(4, long.size);
-    Expect.equals(4, ulong.size);
-  } else {
-    Expect.equals(intptr_t.size, long.size);
-    Expect.equals(intptr_t.size, ulong.size);
-  }
-}
-
-void testWCharTAssumptions() {
-  final bool isSigned = wchar_t.isSigned;
-  print('wchar_t isSigned $isSigned');
-  if (Platform.isWindows) {
-    Expect.equals(2, wchar_t.size);
-    if (isSigned) {
-      Expect.equals(-0x8000, wCharMinValue());
-      Expect.equals(0x7fff, wCharMaxValue());
-    } else {
-      Expect.equals(0, wCharMinValue());
-      Expect.equals(0xffff, wCharMaxValue());
-    }
-  } else {
-    Expect.equals(4, wchar_t.size);
-    if (isSigned) {
-      Expect.equals(-0x80000000, wCharMinValue());
-      Expect.equals(0x7fffffff, wCharMaxValue());
-    } else {
-      Expect.equals(0, wCharMinValue());
-      Expect.equals(0xffffffff, wCharMaxValue());
-    }
-  }
-}
-
-int Function() wCharMinValue = ffiTestFunctions
-    .lookupFunction<Uint64 Function(), int Function()>('WCharMinValue');
-
-int Function() wCharMaxValue = ffiTestFunctions
-    .lookupFunction<Uint64 Function(), int Function()>('WCharMaxValue');
diff --git a/tests/ffi_2/callback_tests_utils.dart b/tests/ffi_2/callback_tests_utils.dart
deleted file mode 100644
index 68621c0c40e..00000000000
--- a/tests/ffi_2/callback_tests_utils.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import 'dylib_utils.dart';
-
-import "package:expect/expect.dart";
-
-final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-
-typedef NativeCallbackTest = Int32 Function(Pointer);
-typedef NativeCallbackTestFn = int Function(Pointer);
-
-class CallbackTest {
-  final String name;
-  final Pointer callback;
-  final void Function() afterCallbackChecks;
-  final bool isLeaf;
-
-  CallbackTest(this.name, this.callback, {this.isLeaf: false})
-      : afterCallbackChecks = noChecks {}
-  CallbackTest.withCheck(this.name, this.callback, this.afterCallbackChecks,
-      {this.isLeaf: false}) {}
-
-  void run() {
-    final NativeCallbackTestFn tester = isLeaf
-        ? ffiTestFunctions.lookupFunction<NativeCallbackTest,
-            NativeCallbackTestFn>("Test$name", isLeaf: true)
-        : ffiTestFunctions.lookupFunction<NativeCallbackTest,
-            NativeCallbackTestFn>("Test$name", isLeaf: false);
-
-    final int testCode = tester(callback);
-
-    if (testCode != 0) {
-      Expect.fail("Test $name failed.");
-    }
-
-    afterCallbackChecks();
-  }
-}
-
-void noChecks() {}
diff --git a/tests/ffi_2/calloc_test.dart b/tests/ffi_2/calloc_test.dart
deleted file mode 100644
index 20af4fbffe5..00000000000
--- a/tests/ffi_2/calloc_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import 'package:expect/expect.dart';
-import 'package:ffi/ffi.dart';
-
-import 'coordinate.dart';
-
-void main() {
-  testZeroInt();
-  testZeroFloat();
-  testZeroStruct();
-}
-
-void testZeroInt() {
-  final p = calloc<Uint8>();
-  Expect.equals(0, p.value);
-  calloc.free(p);
-}
-
-void testZeroFloat() {
-  final p = calloc<Float>();
-  Expect.approxEquals(0.0, p.value);
-  calloc.free(p);
-}
-
-void testZeroStruct() {
-  final p = calloc<Coordinate>();
-  Expect.approxEquals(0, p.ref.x);
-  Expect.approxEquals(0, p.ref.y);
-  Expect.equals(nullptr, p.ref.next);
-  calloc.free(p);
-}
diff --git a/tests/ffi_2/coordinate.dart b/tests/ffi_2/coordinate.dart
deleted file mode 100644
index 6cec851a7e3..00000000000
--- a/tests/ffi_2/coordinate.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library FfiTest;
-
-import 'dart:ffi';
-
-/// Sample struct for dart:ffi library.
-class Coordinate extends Struct {
-  @Double()
-  double x;
-
-  @Double()
-  double y;
-
-  Pointer<Coordinate> next;
-}
diff --git a/tests/ffi_2/data_not_asan_test.dart b/tests/ffi_2/data_not_asan_test.dart
deleted file mode 100644
index f69d126a933..00000000000
--- a/tests/ffi_2/data_not_asan_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program for testing dart:ffi primitive data pointers.
-//
-// These callocs trigger an asan alarm, so these tests are in a separate file
-// which is excluded in asan mode.
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:ffi/ffi.dart";
-import "package:expect/expect.dart";
-
-void main() {
-  testPointerAllocateTooLarge();
-  testPointerAllocateNegative();
-}
-
-void testPointerAllocateTooLarge() {
-  // Try to allocate something that doesn't fit in 64 bit address space.
-  int maxInt = 9223372036854775807; // 2^63 - 1
-  Expect.throws(() => calloc<Int8>(maxInt));
-
-  // Try to allocate almost the full 64 bit address space.
-  int maxInt1_8 = 1152921504606846975; // 2^60 -1
-  Expect.throws(() => calloc<Int8>(maxInt1_8));
-}
-
-void testPointerAllocateNegative() {
-  // Passing in -1 will be converted into an unsigned integer. So, it will try
-  // to allocate SIZE_MAX - 1 + 1 bytes. This will fail as it is the max amount
-  // of addressable memory on the system.
-  Expect.throws(() => calloc<Int8>(-1));
-}
diff --git a/tests/ffi_2/data_test.dart b/tests/ffi_2/data_test.dart
deleted file mode 100644
index 931edda2c68..00000000000
--- a/tests/ffi_2/data_test.dart
+++ /dev/null
@@ -1,481 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program for testing dart:ffi primitive data pointers.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
-
-import 'ffi_test_helpers.dart';
-
-void main() {
-  testPointerBasic();
-  testPointerFromPointer();
-  testPointerPointerArithmetic();
-  testPointerPointerArithmeticSizes();
-  testPointerAllocateZero();
-  testPointerCast();
-  testCastGeneric();
-  testCastGeneric2();
-  testCastNativeType();
-  testCondensedNumbersInt8();
-  testCondensedNumbersFloat();
-  testRangeInt8();
-  testRangeUint8();
-  testRangeInt16();
-  testRangeUint16();
-  testRangeInt32();
-  testRangeUint32();
-  testRangeInt64();
-  testRangeUint64();
-  testRangeIntPtr();
-  testFloat();
-  testDouble();
-  testVoid();
-  testPointerPointer();
-  testPointerPointerNull();
-  testSizeOf();
-  testPointerChain(100);
-  testTypeTest();
-  testToString();
-  testEquality();
-  testAllocateVoid();
-  testAllocateNativeFunction();
-  testSizeOfVoid();
-  testSizeOfNativeFunction();
-  testDynamicInvocation();
-  testMemoryAddressTruncation();
-  testNullptrCast();
-}
-
-void testPointerBasic() {
-  Pointer<Int64> p = calloc();
-  p.value = 42;
-  Expect.equals(42, p.value);
-  calloc.free(p);
-}
-
-void testPointerFromPointer() {
-  Pointer<Int64> p = calloc();
-  p.value = 1337;
-  int ptr = p.address;
-  Pointer<Int64> p2 = Pointer.fromAddress(ptr);
-  Expect.equals(1337, p2.value);
-  calloc.free(p);
-}
-
-void testPointerPointerArithmetic() {
-  Pointer<Int64> p = calloc(2);
-  Pointer<Int64> p2 = p.elementAt(1);
-  p2.value = 100;
-  Pointer<Int64> p3 = p.offsetBy(8);
-  Expect.equals(100, p3.value);
-  calloc.free(p);
-}
-
-void testPointerPointerArithmeticSizes() {
-  Pointer<Int64> p = calloc(2);
-  Pointer<Int64> p2 = p.elementAt(1);
-  int addr = p.address;
-  Expect.equals(addr + 8, p2.address);
-  calloc.free(p);
-
-  Pointer<Int32> p3 = calloc(2);
-  Pointer<Int32> p4 = p3.elementAt(1);
-  addr = p3.address;
-  Expect.equals(addr + 4, p4.address);
-  calloc.free(p3);
-}
-
-void testPointerAllocateZero() {
-  // > If size is 0, either a null pointer or a unique pointer that can be
-  // > successfully passed to calloc.free() shall be returned.
-  // http://pubs.opengroup.org/onlinepubs/009695399/functions/calloc.html
-  //
-  // Null pointer throws a Dart exception.
-  bool returnedNullPointer = false;
-  Pointer<Int8> p;
-  try {
-    p = calloc<Int8>(0);
-  } on Exception {
-    returnedNullPointer = true;
-  }
-  if (!returnedNullPointer) {
-    calloc.free(p);
-  }
-}
-
-void testPointerCast() {
-  Pointer<Int64> p = calloc();
-  p.cast<Int32>(); // gets the correct type args back
-  calloc.free(p);
-}
-
-void testCastGeneric() {
-  Pointer<T> generic<T extends NativeType>(Pointer<Int16> p) {
-    return p.cast();
-  }
-
-  Pointer<Int16> p = calloc();
-  Pointer<Int64> p2 = generic(p);
-  calloc.free(p);
-}
-
-void testCastGeneric2() {
-  Pointer<Int64> generic<T extends NativeType>(Pointer<T> p) {
-    return p.cast();
-  }
-
-  Pointer<Int16> p = calloc();
-  Pointer<Int64> p2 = generic(p);
-  calloc.free(p);
-}
-
-void testCastNativeType() {
-  Pointer<Int64> p = calloc();
-  p.cast<Pointer>();
-  calloc.free(p);
-}
-
-void testCondensedNumbersInt8() {
-  Pointer<Int8> p = calloc(8);
-  for (var i in [0, 1, 2, 3, 4, 5, 6, 7]) {
-    p[i] = i * 3;
-  }
-  for (var i in [0, 1, 2, 3, 4, 5, 6, 7]) {
-    Expect.equals(i * 3, p[i]);
-  }
-  calloc.free(p);
-}
-
-void testCondensedNumbersFloat() {
-  Pointer<Float> p = calloc(8);
-  for (var i in [0, 1, 2, 3, 4, 5, 6, 7]) {
-    p[i] = 1.511366173271439e-13;
-  }
-  for (var i in [0, 1, 2, 3, 4, 5, 6, 7]) {
-    Expect.equals(1.511366173271439e-13, p[i]);
-  }
-  calloc.free(p);
-}
-
-void testRangeInt8() {
-  Pointer<Int8> p = calloc();
-  p.value = 127;
-  Expect.equals(127, p.value);
-  p.value = -128;
-  Expect.equals(-128, p.value);
-
-  Expect.equals(0x0000000000000080, 128);
-  Expect.equals(0xFFFFFFFFFFFFFF80, -128);
-  p.value = 128;
-  Expect.equals(-128, p.value); // truncated and sign extended
-
-  Expect.equals(0xFFFFFFFFFFFFFF7F, -129);
-  Expect.equals(0x000000000000007F, 127);
-  p.value = -129;
-  Expect.equals(127, p.value); // truncated
-  calloc.free(p);
-}
-
-void testRangeUint8() {
-  Pointer<Uint8> p = calloc();
-  p.value = 255;
-  Expect.equals(255, p.value);
-  p.value = 0;
-  Expect.equals(0, p.value);
-
-  Expect.equals(0x0000000000000000, 0);
-  Expect.equals(0x0000000000000100, 256);
-  p.value = 256;
-  Expect.equals(0, p.value); // truncated
-
-  Expect.equals(0xFFFFFFFFFFFFFFFF, -1);
-  Expect.equals(0x00000000000000FF, 255);
-  p.value = -1;
-  Expect.equals(255, p.value); // truncated
-  calloc.free(p);
-}
-
-void testRangeInt16() {
-  Pointer<Int16> p = calloc();
-  p.value = 0x7FFF;
-  Expect.equals(0x7FFF, p.value);
-  p.value = -0x8000;
-  Expect.equals(-0x8000, p.value);
-  p.value = 0x8000;
-  Expect.equals(0xFFFFFFFFFFFF8000, p.value); // truncated and sign extended
-  p.value = -0x8001;
-  Expect.equals(0x7FFF, p.value); // truncated
-  calloc.free(p);
-}
-
-void testRangeUint16() {
-  Pointer<Uint16> p = calloc();
-  p.value = 0xFFFF;
-  Expect.equals(0xFFFF, p.value);
-  p.value = 0;
-  Expect.equals(0, p.value);
-  p.value = 0x10000;
-  Expect.equals(0, p.value); // truncated
-  p.value = -1;
-  Expect.equals(0xFFFF, p.value); // truncated
-  calloc.free(p);
-}
-
-void testRangeInt32() {
-  Pointer<Int32> p = calloc();
-  p.value = 0x7FFFFFFF;
-  Expect.equals(0x7FFFFFFF, p.value);
-  p.value = -0x80000000;
-  Expect.equals(-0x80000000, p.value);
-  p.value = 0x80000000;
-  Expect.equals(0xFFFFFFFF80000000, p.value); // truncated and sign extended
-  p.value = -0x80000001;
-  Expect.equals(0x7FFFFFFF, p.value); // truncated
-  calloc.free(p);
-}
-
-void testRangeUint32() {
-  Pointer<Uint32> p = calloc();
-  p.value = 0xFFFFFFFF;
-  Expect.equals(0xFFFFFFFF, p.value);
-  p.value = 0;
-  Expect.equals(0, p.value);
-  p.value = 0x100000000;
-  Expect.equals(0, p.value); // truncated
-  p.value = -1;
-  Expect.equals(0xFFFFFFFF, p.value); // truncated
-  calloc.free(p);
-}
-
-void testRangeInt64() {
-  Pointer<Int64> p = calloc();
-  p.value = 0x7FFFFFFFFFFFFFFF; // 2 ^ 63 - 1
-  Expect.equals(0x7FFFFFFFFFFFFFFF, p.value);
-  p.value = -0x8000000000000000; // -2 ^ 63
-  Expect.equals(-0x8000000000000000, p.value);
-  calloc.free(p);
-}
-
-void testRangeUint64() {
-  Pointer<Uint64> p = calloc();
-  p.value = 0x7FFFFFFFFFFFFFFF; // 2 ^ 63 - 1
-  Expect.equals(0x7FFFFFFFFFFFFFFF, p.value);
-  p.value = -0x8000000000000000; // -2 ^ 63 interpreted as 2 ^ 63
-  Expect.equals(-0x8000000000000000, p.value);
-
-  // Dart allows interpreting bits both signed and unsigned
-  Expect.equals(0xFFFFFFFFFFFFFFFF, -1);
-  p.value = -1; // -1 interpreted as 2 ^ 64 - 1
-  Expect.equals(-1, p.value);
-  Expect.equals(0xFFFFFFFFFFFFFFFF, p.value);
-  calloc.free(p);
-}
-
-void testRangeIntPtr() {
-  Pointer<IntPtr> p = calloc();
-  int pAddr = p.address;
-  p.value = pAddr; // its own address should fit
-  p.value = 0x7FFFFFFF; // and 32 bit addresses should fit
-  Expect.equals(0x7FFFFFFF, p.value);
-  p.value = -0x80000000;
-  Expect.equals(-0x80000000, p.value);
-  calloc.free(p);
-}
-
-void testFloat() {
-  Pointer<Float> p = calloc();
-  p.value = 1.511366173271439e-13;
-  Expect.equals(1.511366173271439e-13, p.value);
-  p.value = 1.4260258159703532e-105; // float does not have enough precision
-  Expect.notEquals(1.4260258159703532e-105, p.value);
-  calloc.free(p);
-}
-
-void testDouble() {
-  Pointer<Double> p = calloc();
-  p.value = 1.4260258159703532e-105;
-  Expect.equals(1.4260258159703532e-105, p.value);
-  calloc.free(p);
-}
-
-void testVoid() {
-  Pointer<IntPtr> p1 = calloc();
-  Pointer<Void> p2 = p1.cast(); // make this dart pointer opaque
-  p2.address; // we can print the address
-  calloc.free(p2);
-}
-
-void testPointerPointer() {
-  Pointer<Int16> p = calloc();
-  p.value = 17;
-  Pointer<Pointer<Int16>> p2 = calloc();
-  p2.value = p;
-  Expect.equals(17, p2.value.value);
-  calloc.free(p2);
-  calloc.free(p);
-}
-
-void testPointerPointerNull() {
-  Pointer<Pointer<Int8>> pointerToPointer = calloc();
-  Pointer<Int8> value = nullptr;
-  pointerToPointer.value = value;
-  value = pointerToPointer.value;
-  Expect.equals(value, nullptr);
-  value = calloc();
-  pointerToPointer.value = value;
-  value = pointerToPointer.value;
-  Expect.isNotNull(value);
-  calloc.free(value);
-  value = nullptr;
-  pointerToPointer.value = value;
-  value = pointerToPointer.value;
-  Expect.equals(value, nullptr);
-  calloc.free(pointerToPointer);
-}
-
-void testSizeOf() {
-  Expect.equals(1, sizeOf<Int8>());
-  Expect.equals(2, sizeOf<Int16>());
-  Expect.equals(4, sizeOf<Int32>());
-  Expect.equals(8, sizeOf<Int64>());
-  Expect.equals(1, sizeOf<Uint8>());
-  Expect.equals(2, sizeOf<Uint16>());
-  Expect.equals(4, sizeOf<Uint32>());
-  Expect.equals(8, sizeOf<Uint64>());
-  Expect.equals(true, 4 == sizeOf<IntPtr>() || 8 == sizeOf<IntPtr>());
-  Expect.equals(4, sizeOf<Float>());
-  Expect.equals(8, sizeOf<Double>());
-}
-
-// note: stack overflows at around 15k calls
-void testPointerChain(int length) {
-  void createChain(Pointer<IntPtr> head, int length, int value) {
-    if (length == 0) {
-      head.value = value;
-      return;
-    }
-    Pointer<IntPtr> next = calloc();
-    head.value = next.address;
-    createChain(next, length - 1, value);
-  }
-
-  int getChainValue(Pointer<IntPtr> head, int length) {
-    if (length == 0) {
-      return head.value;
-    }
-    Pointer<IntPtr> next = Pointer.fromAddress(head.value);
-    return getChainValue(next, length - 1);
-  }
-
-  void freeChain(Pointer<IntPtr> head, int length) {
-    Pointer<IntPtr> next = Pointer.fromAddress(head.value);
-    calloc.free(head);
-    if (length == 0) {
-      return;
-    }
-    freeChain(next, length - 1);
-  }
-
-  Pointer<IntPtr> head = calloc();
-  createChain(head, length, 512);
-  int tailValue = getChainValue(head, length);
-  Expect.equals(512, tailValue);
-  freeChain(head, length);
-}
-
-void testTypeTest() {
-  Pointer<Int8> p = calloc();
-  Expect.isTrue(p is Pointer);
-  calloc.free(p);
-}
-
-void testToString() {
-  Pointer<Int16> p = calloc();
-  Expect.stringEquals("Pointer: address=0x", p.toString().substring(0, 19));
-  calloc.free(p);
-  Pointer<Int64> p2 = Pointer.fromAddress(0x123abc);
-  Expect.stringEquals("Pointer: address=0x123abc", p2.toString());
-}
-
-void testEquality() {
-  Pointer<Int8> p = Pointer.fromAddress(12345678);
-  Pointer<Int8> p2 = Pointer.fromAddress(12345678);
-  Expect.equals(p, p2);
-  Expect.equals(p.hashCode, p2.hashCode);
-  Pointer<Int16> p3 = p.cast();
-  Expect.equals(p, p3);
-  Expect.equals(p.hashCode, p3.hashCode);
-  Pointer<Int8> p4 = p.offsetBy(1337);
-  Expect.notEquals(p, p4);
-}
-
-typedef Int8UnOp = Int8 Function(Int8);
-
-void testAllocateVoid() {
-  Expect.throws(() {
-    Pointer<Void> p = calloc();
-  });
-}
-
-void testAllocateNativeFunction() {
-  Expect.throws(() {
-    Pointer<NativeFunction<Int8UnOp>> p = calloc();
-  });
-}
-
-void testSizeOfVoid() {
-  Expect.throws(() {
-    sizeOf<Void>();
-  });
-}
-
-void testSizeOfNativeFunction() {
-  Expect.throws(() {
-    sizeOf<NativeFunction<Int8UnOp>>();
-  });
-}
-
-void testDynamicInvocation() {
-  dynamic p = calloc<Int8>();
-  Expect.throws(() {
-    final int i = p.value;
-  });
-  Expect.throws(() => p.value = 1);
-  Expect.throws(() => p.elementAt(5));
-  final int addr = p.address;
-  final Pointer<Int16> p2 = p.cast<Int16>();
-  calloc.free(p);
-}
-
-final nullableInt64ElementAt1 = ffiTestFunctions.lookupFunction<
-    Pointer<Int64> Function(Pointer<Int64>),
-    Pointer<Int64> Function(Pointer<Int64>)>("NullableInt64ElemAt1");
-
-void testNullptrCast() {
-  Pointer<Int64> ptr = nullptr;
-  ptr = nullableInt64ElementAt1(ptr);
-  Expect.equals(ptr, nullptr);
-}
-
-void testMemoryAddressTruncation() {
-  const int kIgnoreBytesPositive = 0x1122334400000000;
-  const int kIgnoreBytesNegative = 0xffddccbb00000000;
-  if (sizeOf<IntPtr>() == 4) {
-    final p1 = Pointer<Int8>.fromAddress(123);
-    final p2 = Pointer<Int8>.fromAddress(123 + kIgnoreBytesPositive);
-    final p3 = Pointer<Int8>.fromAddress(123 + kIgnoreBytesNegative);
-    Expect.equals(p1.address, p2.address);
-    Expect.equals(p1, p2);
-    Expect.equals(p1.address, p3.address);
-    Expect.equals(p1, p3);
-  }
-}
diff --git a/tests/ffi_2/dl_api_exit_enter_isolate_test.dart b/tests/ffi_2/dl_api_exit_enter_isolate_test.dart
deleted file mode 100644
index 03abbb3ed50..00000000000
--- a/tests/ffi_2/dl_api_exit_enter_isolate_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// SharedObjects=ffi_test_functions
-
-import 'dart:ffi';
-import 'dart:isolate';
-
-import 'package:expect/expect.dart';
-
-import 'dylib_utils.dart';
-
-final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-
-final initializeApi = ffiTestFunctions.lookupFunction<
-    IntPtr Function(Pointer<Void>),
-    int Function(Pointer<Void>)>("InitDartApiDL");
-final enterBarrier =
-    ffiTestFunctions.lookupFunction<Void Function(IntPtr), void Function(int)>(
-        "WaitUntilNThreadsEnterBarrier");
-
-main() async {
-  const threadBarrierCount = 30;
-
-  initializeApi(NativeApi.initializeApiDLData);
-
-  final all = <Future>[];
-  for (int i = 0; i < threadBarrierCount; ++i) {
-    all.add(Isolate.run(() => enterBarrier(threadBarrierCount)));
-  }
-  await Future.wait(all);
-}
diff --git a/tests/ffi_2/dylib_close_test.dart b/tests/ffi_2/dylib_close_test.dart
deleted file mode 100644
index 8814825f3c0..00000000000
--- a/tests/ffi_2/dylib_close_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart=2.9
-
-import 'dart:ffi';
-import 'dart:io';
-
-import 'package:expect/expect.dart';
-
-import 'dylib_utils.dart';
-
-void main() {
-  testClose();
-  testUnclosable();
-}
-
-void testClose() {
-  final lib = dlopenPlatformSpecific("ffi_test_functions");
-  lib.lookup('ReturnMaxUint8');
-
-  lib.close();
-  Expect.throwsStateError(
-      () => lib.lookup('ReturnMaxUint8'), 'Illegal lookup in closed library');
-  lib.close(); // Duplicate close should not crash.
-}
-
-void testUnclosable() {
-  final proc = DynamicLibrary.process();
-  final exec = DynamicLibrary.executable();
-
-  Expect.throwsStateError(proc.close);
-  Expect.throwsStateError(exec.close);
-}
diff --git a/tests/ffi_2/dylib_isolates_test.dart b/tests/ffi_2/dylib_isolates_test.dart
deleted file mode 100644
index 1d5fd74afcc..00000000000
--- a/tests/ffi_2/dylib_isolates_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Test for DynamicLibrary.open behavior on multiple isolates.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-import 'dart:io';
-import 'dart:isolate';
-
-import "package:expect/expect.dart";
-
-import 'dylib_utils.dart';
-
-void main() async {
-  final dl = dlopenPlatformSpecific('ffi_test_functions');
-  final dl2 = dlopenPlatformSpecific('ffi_test_functions');
-  Expect.equals(dl, dl2);
-  Expect.isFalse(identical(dl, dl2));
-
-  final setGlobalVar = dl
-      .lookupFunction<Void Function(Int32), void Function(int)>('SetGlobalVar');
-  final getGlobalVar =
-      dl.lookupFunction<Int32 Function(), int Function()>('GetGlobalVar');
-  setGlobalVar(123);
-  Expect.equals(123, getGlobalVar());
-
-  final receivePort = ReceivePort();
-  Isolate.spawn(secondIsolateMain, receivePort.sendPort);
-  await receivePort.first;
-  if (!Platform.isIOS /* Static linking causes different behavior. */) {
-    Expect.equals(42, getGlobalVar());
-  }
-}
-
-void secondIsolateMain(SendPort sendPort) {
-  final dl = dlopenPlatformSpecific('ffi_test_functions');
-  final setGlobalVar = dl
-      .lookupFunction<Void Function(Int32), void Function(int)>('SetGlobalVar');
-  setGlobalVar(42);
-  sendPort.send('done');
-}
diff --git a/tests/ffi_2/dylib_utils.dart b/tests/ffi_2/dylib_utils.dart
deleted file mode 100644
index d4f86fc1ce2..00000000000
--- a/tests/ffi_2/dylib_utils.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:ffi' as ffi;
-import 'dart:io' show Platform;
-
-String _platformPath(String name, {String path}) {
-  if (path == null) path = "";
-  if (Platform.isLinux || Platform.isAndroid || Platform.isFuchsia)
-    return path + "lib" + name + ".so";
-  if (Platform.isMacOS) return path + "lib" + name + ".dylib";
-  if (Platform.isWindows) return path + name + ".dll";
-  throw Exception("Platform not implemented");
-}
-
-ffi.DynamicLibrary dlopenPlatformSpecific(String name, {String path}) {
-  String fullPath = _platformPath(name, path: path);
-  return ffi.DynamicLibrary.open(fullPath);
-}
diff --git a/tests/ffi_2/expando_test.dart b/tests/ffi_2/expando_test.dart
deleted file mode 100644
index b9acf02a0ce..00000000000
--- a/tests/ffi_2/expando_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program for testing dart:ffi primitive data pointers.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-
-void main() {
-  testPointer();
-  testStruct();
-}
-
-Expando<int> expando = Expando('myExpando');
-
-void testPointer() {
-  final pointer = Pointer<Int8>.fromAddress(0xdeadbeef);
-  Expect.throws(() {
-    expando[pointer];
-  });
-  Expect.throws(() {
-    expando[pointer] = 1234;
-  });
-}
-
-class MyStruct extends Struct {
-  Pointer notEmpty;
-}
-
-void testStruct() {
-  final pointer = Pointer<MyStruct>.fromAddress(0xdeadbeef);
-  final struct = pointer.ref;
-  Expect.throws(() {
-    expando[struct];
-  });
-  Expect.throws(() {
-    expando[struct] = 1234;
-  });
-}
diff --git a/tests/ffi_2/extension_methods_test.dart b/tests/ffi_2/extension_methods_test.dart
deleted file mode 100644
index cb124afabd6..00000000000
--- a/tests/ffi_2/extension_methods_test.dart
+++ /dev/null
@@ -1,106 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
-
-main(List<String> arguments) {
-  for (int i = 0; i < 100; i++) {
-    testStoreLoad();
-    testReifiedGeneric();
-    testCompoundLoadAndStore();
-  }
-}
-
-testStoreLoad() {
-  final p = calloc<Int8>(2);
-  p.value = 10;
-  Expect.equals(10, p.value);
-  p[1] = 20;
-  Expect.equals(20, p[1]);
-  if (sizeOf<IntPtr>() == 4) {
-    // Test round tripping.
-    Expect.equals(20, p.elementAt(0x100000001).value);
-    Expect.equals(20, p[0x100000001]);
-  }
-
-  // Test negative index.
-  final pUseNegative = p.elementAt(1);
-  Expect.equals(10, pUseNegative[-1]);
-
-  final p1 = calloc<Double>(2);
-  p1.value = 10.0;
-  Expect.approxEquals(10.0, p1.value);
-  p1[1] = 20.0;
-  Expect.approxEquals(20.0, p1[1]);
-  calloc.free(p1);
-
-  final p2 = calloc<Pointer<Int8>>(2);
-  p2.value = p;
-  Expect.equals(p, p2.value);
-  p2[1] = p;
-  Expect.equals(p, p2[1]);
-  calloc.free(p2);
-  calloc.free(p);
-
-  final p3 = calloc<Foo>();
-  Foo foo = p3.ref;
-  foo.a = 1;
-  Expect.equals(1, foo.a);
-  calloc.free(p3);
-
-  final p4 = calloc<Foo>(2);
-  Foo src = p4[1];
-  src.a = 2;
-  p4.ref = src;
-  Foo dst = p4.ref;
-  Expect.equals(2, dst.a);
-  calloc.free(p4);
-}
-
-testReifiedGeneric() {
-  final p = calloc<Pointer<Int8>>();
-  Pointer<Pointer<NativeType>> p2 = p;
-  Expect.isTrue(p2.value is Pointer<Int8>);
-  calloc.free(p);
-}
-
-testCompoundLoadAndStore() {
-  final foos = calloc<Foo>(10);
-  final reference = foos.ref..a = 10;
-
-  for (var i = 1; i < 9; i++) {
-    foos[i] = reference;
-    Expect.isTrue(foos[i].a == 10);
-
-    foos.elementAt(i).ref = reference;
-    Expect.isTrue(foos.elementAt(i).ref.a == 10);
-  }
-
-  final bars = calloc<Bar>(10);
-  bars[0].foo = reference;
-
-  for (var i = 1; i < 9; i++) {
-    bars[i] = bars[0];
-    Expect.isTrue(bars.elementAt(i).ref.foo.a == 10);
-  }
-
-  calloc.free(foos);
-  calloc.free(bars);
-}
-
-class Foo extends Struct {
-  @Int8()
-  int a;
-}
-
-class Bar extends Union {
-  Foo foo;
-  @Int32()
-  int baz;
-}
diff --git a/tests/ffi_2/external_typed_data_test.dart b/tests/ffi_2/external_typed_data_test.dart
deleted file mode 100644
index 40d3e74233b..00000000000
--- a/tests/ffi_2/external_typed_data_test.dart
+++ /dev/null
@@ -1,297 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:ffi';
-import 'dart:math';
-import 'dart:typed_data';
-
-import 'package:expect/expect.dart';
-import "package:ffi/ffi.dart";
-
-main() {
-  testInt8Load();
-  testInt8Store();
-  testUint8Load();
-  testUint8Store();
-  testInt16Load();
-  testInt16Store();
-  testUint16Load();
-  testUint16Store();
-  testInt32Load();
-  testInt32Store();
-  testUint32Load();
-  testUint32Store();
-  testInt64Load();
-  testInt64Store();
-  testUint64Load();
-  testUint64Store();
-  testFloatLoad();
-  testFloatStore();
-  testDoubleLoad();
-  testDoubleStore();
-  testArrayLoad();
-  testArrayStore();
-  testNegativeArray();
-  testAlignment();
-}
-
-// For signed int tests, we store 0xf* and load -1 to check sign-extension.
-// For unsigned int tests, we store 0xf* and load the same to check truncation.
-
-void testInt8Load() {
-  // Load
-  Pointer<Int8> ptr = calloc();
-  ptr.value = 0xff;
-  Int8List list = ptr.asTypedList(1);
-  Expect.equals(list[0], -1);
-  Expect.equals(list.length, 1);
-  calloc.free(ptr);
-}
-
-void testInt8Store() {
-  // Store
-  Pointer<Int8> ptr = calloc();
-  Int8List list = ptr.asTypedList(1);
-  list[0] = 0xff;
-  Expect.equals(list.length, 1);
-  Expect.equals(ptr.value, -1);
-  calloc.free(ptr);
-}
-
-void testUint8Load() {
-  // Load
-  Pointer<Uint8> ptr = calloc();
-  ptr.value = 0xff;
-  Uint8List list = ptr.asTypedList(1);
-  Expect.equals(list[0], 0xff);
-  Expect.equals(list.length, 1);
-  calloc.free(ptr);
-}
-
-void testUint8Store() {
-  // Store
-  Pointer<Uint8> ptr = calloc();
-  Uint8List list = ptr.asTypedList(1);
-  list[0] = 0xff;
-  Expect.equals(list.length, 1);
-  Expect.equals(ptr.value, 0xff);
-  calloc.free(ptr);
-}
-
-void testInt16Load() {
-  // Load
-  Pointer<Int16> ptr = calloc();
-  ptr.value = 0xffff;
-  Int16List list = ptr.asTypedList(1);
-  Expect.equals(list[0], -1);
-  Expect.equals(list.length, 1);
-  calloc.free(ptr);
-}
-
-void testInt16Store() {
-  // Store
-  Pointer<Int16> ptr = calloc();
-  Int16List list = ptr.asTypedList(1);
-  list[0] = 0xffff;
-  Expect.equals(list.length, 1);
-  Expect.equals(ptr.value, -1);
-  calloc.free(ptr);
-}
-
-void testUint16Load() {
-  // Load
-  Pointer<Uint16> ptr = calloc();
-  ptr.value = 0xffff;
-  Uint16List list = ptr.asTypedList(1);
-  Expect.equals(list[0], 0xffff);
-  Expect.equals(list.length, 1);
-  calloc.free(ptr);
-}
-
-void testUint16Store() {
-  // Store
-  Pointer<Uint16> ptr = calloc();
-  Uint16List list = ptr.asTypedList(1);
-  list[0] = 0xffff;
-  Expect.equals(list.length, 1);
-  Expect.equals(ptr.value, 0xffff);
-  calloc.free(ptr);
-}
-
-void testInt32Load() {
-  // Load
-  Pointer<Int32> ptr = calloc();
-  ptr.value = 0xffffffff;
-  Int32List list = ptr.asTypedList(1);
-  Expect.equals(list[0], -1);
-  Expect.equals(list.length, 1);
-  calloc.free(ptr);
-}
-
-void testInt32Store() {
-  // Store
-  Pointer<Int32> ptr = calloc();
-  Int32List list = ptr.asTypedList(1);
-  list[0] = 0xffffffff;
-  Expect.equals(list.length, 1);
-  Expect.equals(ptr.value, -1);
-  calloc.free(ptr);
-}
-
-void testUint32Load() {
-  // Load
-  Pointer<Uint32> ptr = calloc();
-  ptr.value = 0xffffffff;
-  Uint32List list = ptr.asTypedList(1);
-  Expect.equals(list[0], 0xffffffff);
-  Expect.equals(list.length, 1);
-  calloc.free(ptr);
-}
-
-void testUint32Store() {
-  // Store
-  Pointer<Uint32> ptr = calloc();
-  Uint32List list = ptr.asTypedList(1);
-  list[0] = 0xffffffff;
-  Expect.equals(list.length, 1);
-  Expect.equals(ptr.value, 0xffffffff);
-  calloc.free(ptr);
-}
-
-void testInt64Load() {
-  // Load
-  Pointer<Int64> ptr = calloc();
-  ptr.value = 0xffffffffffffffff;
-  Int64List list = ptr.asTypedList(1);
-  Expect.equals(list[0], -1);
-  Expect.equals(list.length, 1);
-  calloc.free(ptr);
-}
-
-void testInt64Store() {
-  // Store
-  Pointer<Int64> ptr = calloc();
-  Int64List list = ptr.asTypedList(1);
-  list[0] = 0xffffffffffffffff;
-  Expect.equals(list.length, 1);
-  Expect.equals(ptr.value, -1);
-  calloc.free(ptr);
-}
-
-void testUint64Load() {
-  // Load
-  Pointer<Uint64> ptr = calloc();
-  ptr.value = 0xffffffffffffffff;
-  Uint64List list = ptr.asTypedList(1);
-  Expect.equals(list[0], 0xffffffffffffffff);
-  Expect.equals(list.length, 1);
-  calloc.free(ptr);
-}
-
-void testUint64Store() {
-  // Store
-  Pointer<Uint64> ptr = calloc();
-  Uint64List list = ptr.asTypedList(1);
-  list[0] = 0xffffffffffffffff;
-  Expect.equals(list.length, 1);
-  Expect.equals(ptr.value, 0xffffffffffffffff);
-  calloc.free(ptr);
-}
-
-double maxFloat = (2 - pow(2, -23)) * pow(2, 127);
-double maxDouble = (2 - pow(2, -52)) * pow(2, pow(2, 10) - 1);
-
-void testFloatLoad() {
-  // Load
-  Pointer<Float> ptr = calloc();
-  ptr.value = maxFloat;
-  Float32List list = ptr.asTypedList(1);
-  Expect.equals(list[0], maxFloat);
-  Expect.equals(list.length, 1);
-  calloc.free(ptr);
-}
-
-void testFloatStore() {
-  // Store
-  Pointer<Float> ptr = calloc();
-  Float32List list = ptr.asTypedList(1);
-  list[0] = maxFloat;
-  Expect.equals(list.length, 1);
-  Expect.equals(ptr.value, maxFloat);
-  calloc.free(ptr);
-}
-
-void testDoubleLoad() {
-  // Load
-  Pointer<Double> ptr = calloc();
-  ptr.value = maxDouble;
-  Float64List list = ptr.asTypedList(1);
-  Expect.equals(list[0], maxDouble);
-  Expect.equals(list.length, 1);
-  calloc.free(ptr);
-}
-
-void testDoubleStore() {
-  // Store
-  Pointer<Double> ptr = calloc();
-  Float64List list = ptr.asTypedList(1);
-  list[0] = maxDouble;
-  Expect.equals(list.length, 1);
-  Expect.equals(ptr.value, maxDouble);
-  calloc.free(ptr);
-}
-
-void testArrayLoad() {
-  const int count = 0x100;
-  Pointer<Int32> ptr = calloc(count);
-  for (int i = 0; i < count; ++i) {
-    ptr[i] = i;
-  }
-  Int32List array = ptr.asTypedList(count);
-  for (int i = 0; i < count; ++i) {
-    Expect.equals(array[i], i);
-  }
-  calloc.free(ptr);
-}
-
-void testArrayStore() {
-  const int count = 0x100;
-  Pointer<Int32> ptr = calloc(count);
-  Int32List array = ptr.asTypedList(count);
-  for (int i = 0; i < count; ++i) {
-    array[i] = i;
-  }
-  for (int i = 0; i < count; ++i) {
-    Expect.equals(ptr[i], i);
-  }
-  calloc.free(ptr);
-}
-
-void testNegativeArray() {
-  Pointer<Int32> ptr = nullptr;
-  Expect.throws<ArgumentError>(() => ptr.asTypedList(-1));
-}
-
-// Tests that the address we're creating an ExternalTypedData from is aligned to
-// the element size.
-void testAlignment() {
-  Expect.throws<ArgumentError>(
-      () => Pointer<Int16>.fromAddress(1).asTypedList(1));
-  Expect.throws<ArgumentError>(
-      () => Pointer<Int32>.fromAddress(2).asTypedList(1));
-  Expect.throws<ArgumentError>(
-      () => Pointer<Int64>.fromAddress(4).asTypedList(1));
-  Expect.throws<ArgumentError>(
-      () => Pointer<Uint16>.fromAddress(1).asTypedList(1));
-  Expect.throws<ArgumentError>(
-      () => Pointer<Uint32>.fromAddress(2).asTypedList(1));
-  Expect.throws<ArgumentError>(
-      () => Pointer<Uint64>.fromAddress(4).asTypedList(1));
-  Expect.throws<ArgumentError>(
-      () => Pointer<Float>.fromAddress(2).asTypedList(1));
-  Expect.throws<ArgumentError>(
-      () => Pointer<Double>.fromAddress(4).asTypedList(1));
-}
diff --git a/tests/ffi_2/ffi_2.status b/tests/ffi_2/ffi_2.status
deleted file mode 100644
index 26a9238776e..00000000000
--- a/tests/ffi_2/ffi_2.status
+++ /dev/null
@@ -1,79 +0,0 @@
-# Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-
-function_callbacks_structs_by_value_test: Pass, Slow # https://dartbug.com/47304 https://dartbug.com/45007
-function_structs_by_value_generated_args_leaf_test: Pass, Slow # https://dartbug.com/47303 https://dartbug.com/45007
-function_structs_by_value_generated_args_test: Pass, Slow # https://dartbug.com/47303 https://dartbug.com/45007
-function_structs_by_value_generated_ret_arg_leaf_test: Pass, Slow # https://dartbug.com/47303 https://dartbug.com/45007
-function_structs_by_value_generated_ret_arg_test: Pass, Slow # https://dartbug.com/47303 https://dartbug.com/45007
-function_structs_by_value_generated_ret_leaf_test: Pass, Slow # https://dartbug.com/47303 https://dartbug.com/45007
-function_structs_by_value_generated_ret_test: Pass, Slow # https://dartbug.com/47303 https://dartbug.com/45007
-
-[ $builder_tag == optimization_counter_threshold ]
-aliasing_test: SkipByDesign # Already has VMOptions=--optimization-counter-threshold
-function_callbacks_structs_by_value_generated_test: SkipByDesign # Already has VMOptions=--optimization-counter-threshold
-function_callbacks_structs_by_value_test: SkipByDesign # Already has VMOptions=--optimization-counter-threshold
-function_callbacks_very_many_test: SkipByDesign # Already has VMOptions=--optimization-counter-threshold
-function_structs_by_value_generated_args_leaf_test: SkipByDesign # Already has VMOptions=--optimization-counter-threshold
-function_structs_by_value_generated_args_test: SkipByDesign # Already has VMOptions=--optimization-counter-threshold
-function_structs_by_value_generated_ret_arg_leaf_test: SkipByDesign # Already has VMOptions=--optimization-counter-threshold
-function_structs_by_value_generated_ret_arg_test: SkipByDesign # Already has VMOptions=--optimization-counter-threshold
-function_structs_by_value_generated_ret_leaf_test: SkipByDesign # Already has VMOptions=--optimization-counter-threshold
-function_structs_by_value_generated_ret_test: SkipByDesign # Already has VMOptions=--optimization-counter-threshold
-function_test: SkipByDesign # Already has VMOptions=--optimization-counter-threshold
-function_very_many_test: SkipByDesign # Already has VMOptions=--optimization-counter-threshold
-hardfp_test: SkipByDesign # Already has VMOptions=--optimization-counter-threshold
-regress_43016_test: SkipByDesign # Already has VMOptions=--optimization-counter-threshold
-structs_nnbd_workaround_test: SkipByDesign # Already has VMOptions=--optimization-counter-threshold
-structs_test: SkipByDesign # Already has VMOptions=--optimization-counter-threshold
-variance_function_test: SkipByDesign # Already has VMOptions=--optimization-counter-threshold
-vmspecific_function_gc_test: SkipByDesign # Already has VMOptions=--optimization-counter-threshold
-vmspecific_function_test: SkipByDesign # Already has VMOptions=--optimization-counter-threshold
-
-[ $compiler == app_jitk ]
-vmspecific_leaf_call_test: Skip # https://dartbug.com/46125: Snapshot fails to generate.
-
-[ $mode == debug ]
-function_callbacks_structs_by_value_generated_test: Pass, Slow
-
-[ $mode == product ]
-regress_47594_test: Skip # Profiler is not available in Product.
-
-[ $system == android ]
-*: Pass, Slow # https://github.com/dart-lang/sdk/issues/38489
-regress_47594_test: Skip # DartDev is not available on Android.
-vmspecific_native_finalizer_isolate_groups_test: Skip # SpawnUri not available on Android tester.
-
-[ $system == windows ]
-regress_47594_test: Skip # DynamicLibrary.process() is not available on Windows.
-
-[ $simulator ]
-*: Skip # FFI not yet supported on the arm simulator.
-
-[ $compiler != dart2analyzer && $compiler != fasta && $runtime != dart_precompiled && $runtime != vm ]
-*: SkipByDesign # FFI is a VM-only feature. (This test suite is part of the default set.)
-
-[ $compiler == dartkp && $system == windows ]
-vmspecific_handle_test: SkipByDesign # Symbols are not exposed on purpose and are not linked in Windows Precompiled. dartbug.com/40579
-
-[ $system != android && $system != linux && $system != macos && $system != windows ]
-*: Skip # FFI not yet supported on other OSes.
-
-# These tests trigger and catch an abort (intentionally) and terminate the VM.
-# They're incompatible with ASAN because not all memory is freed when aborting and
-# with AppJit because the abort the VM before it can generate a snapshot.
-[ $compiler == app_jitk || $sanitizer == asan ]
-vmspecific_function_callbacks_exit_test: SkipByDesign
-
-[ $compiler == dart2analyzer || $compiler == fasta ]
-vmspecific_enable_ffi_test: SkipByDesign # This is a check for VM only.
-
-[ $compiler == dartkp || $arch == arm64 && $system == fuchsia ]
-abi_specific_int_incomplete_jit_test: SkipByDesign # Only intended to run in JIT mode.
-
-[ $compiler != dartkp || $arch == arm64 && $system == fuchsia ]
-abi_specific_int_incomplete_aot_test: SkipByDesign # Only intended to run in AOT mode.
-
-[ $sanitizer == asan || $sanitizer == msan || $sanitizer == tsan ]
-data_not_asan_test: SkipByDesign # This test tries to allocate too much memory on purpose.
diff --git a/tests/ffi_2/ffi_callback_unique_test.dart b/tests/ffi_2/ffi_callback_unique_test.dart
deleted file mode 100644
index 30e074a99da..00000000000
--- a/tests/ffi_2/ffi_callback_unique_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'dart:ffi';
-
-import 'package:expect/expect.dart';
-
-void main() {
-  final a = <int>[];
-  final b = <int>[];
-  for (int i = 0; i < 10; ++i) {
-    // Several pointers for same call site.
-    a.add(
-        Pointer.fromFunction<Int Function()>(nativeToDartCallback, 0).address);
-    b.add(
-        Pointer.fromFunction<Int Function()>(nativeToDartCallback, 1).address);
-  }
-
-  ensureEqualEntries(a);
-  ensureEqualEntries(b);
-
-  // The two functions have different exceptional return and should have
-  // therefore a different ffi trampoline.
-  Expect.notEquals(a.first, b.first);
-}
-
-void ensureEqualEntries(List<int> entries) {
-  final first = entries.first;
-  for (int i = 1; i < entries.length; ++i) {
-    Expect.equals(first, entries[i]);
-  }
-}
-
-int nativeToDartCallback() => 42;
diff --git a/tests/ffi_2/ffi_test_helpers.dart b/tests/ffi_2/ffi_test_helpers.dart
deleted file mode 100644
index 9573a5c3ff3..00000000000
--- a/tests/ffi_2/ffi_test_helpers.dart
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Helpers for tests which trigger GC in delicate places.
-
-// @dart = 2.9
-
-// ignore: import_internal_library, unused_import
-import 'dart:_internal';
-import 'dart:ffi';
-
-import 'dylib_utils.dart';
-
-typedef NativeNullaryOp = Void Function();
-typedef NullaryOpVoid = void Function();
-
-typedef NativeUnaryOp = Void Function(IntPtr);
-typedef UnaryOpVoid = void Function(int);
-
-final DynamicLibrary ffiTestFunctions =
-    dlopenPlatformSpecific("ffi_test_functions");
-
-final collectOnNthAllocation = ffiTestFunctions
-    .lookupFunction<NativeUnaryOp, UnaryOpVoid>("CollectOnNthAllocation");
-
-extension PointerOffsetBy<T extends NativeType> on Pointer<T> {
-  Pointer<T> offsetBy(int bytes) => Pointer.fromAddress(address + bytes);
-}
-
-/// Triggers garbage collection.
-// Defined in `dart:_internal`.
-// ignore: undefined_identifier
-void triggerGc() => VMInternalsForTesting.collectAllGarbage();
-
-void Function(String) _namedPrint(String name) {
-  if (name != null) {
-    return (String value) => print('$name: $value');
-  }
-  return (String value) => print(value);
-}
-
-/// Does a GC and if [doAwait] awaits a future to enable running finalizers.
-///
-/// Also prints for debug purposes.
-///
-/// If provided, [name] prefixes the debug prints.
-void doGC({String name}) {
-  final _print = _namedPrint(name);
-
-  _print('Do GC.');
-  triggerGc();
-  _print('GC done');
-}
-
-void createAndLoseFinalizable(Pointer<IntPtr> token) {
-  final myFinalizable = MyFinalizable();
-  setTokenFinalizer.attach(myFinalizable, token.cast());
-}
-
-final setTokenTo42Ptr =
-    ffiTestFunctions.lookup<NativeFinalizerFunction>("SetArgumentTo42");
-final setTokenFinalizer = NativeFinalizer(setTokenTo42Ptr);
-
-class MyFinalizable implements Finalizable {}
diff --git a/tests/ffi_2/finalizer_external_size_accounting_test.dart b/tests/ffi_2/finalizer_external_size_accounting_test.dart
deleted file mode 100644
index dd3755996f5..00000000000
--- a/tests/ffi_2/finalizer_external_size_accounting_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Issue https://github.com/dart-lang/sdk/issues/50537
-
-// @dart=2.9
-
-import "dart:async";
-import "dart:ffi";
-import "dart:io";
-
-final libc = DynamicLibrary.process();
-typedef MallocForeign = Pointer<Void> Function(IntPtr size);
-typedef MallocNative = Pointer<Void> Function(int size);
-final malloc = libc.lookupFunction<MallocForeign, MallocNative>('malloc');
-typedef FreeForeign = Void Function(Pointer<Void>);
-final free = libc.lookup<NativeFunction<FreeForeign>>('free');
-final freeFinalizer = NativeFinalizer(free);
-
-class Resource implements Finalizable {
-  Pointer<Void> _target;
-  Resource() : _target = malloc(8) {
-    if (_target == nullptr) {
-      throw OutOfMemoryError();
-    }
-    freeFinalizer.attach(this, _target, detach: this, externalSize: 8);
-  }
-}
-
-void main() {
-  if (Platform.isWindows) {
-    print("No malloc via self process lookup on Windows");
-    return;
-  }
-
-  // Split across turns so the internal finalizer cleanup can run.
-  // Cf. https://github.com/dart-lang/sdk/issues/50570
-  final sw = Stopwatch()..start();
-  step() {
-    if (sw.elapsedMilliseconds < 2000) {
-      // VM assertion: external size of each generation should always be
-      // non-negative.
-      List.generate(1000, (_) => new Resource());
-      Timer.run(step);
-    }
-  }
-
-  Timer.run(step);
-}
diff --git a/tests/ffi_2/function_callbacks_many_test.dart b/tests/ffi_2/function_callbacks_many_test.dart
deleted file mode 100644
index f34b4ae0f10..00000000000
--- a/tests/ffi_2/function_callbacks_many_test.dart
+++ /dev/null
@@ -1,1044 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program for testing dart:ffi function pointers with callbacks.
-//
-// VMOptions=--stacktrace-every=100
-// VMOptions=--write-protect-code --no-dual-map-code
-// VMOptions=--write-protect-code --no-dual-map-code --stacktrace-every=100
-// VMOptions=--use-slow-path
-// VMOptions=--use-slow-path --stacktrace-every=100
-// VMOptions=--use-slow-path --write-protect-code --no-dual-map-code
-// VMOptions=--use-slow-path --write-protect-code --no-dual-map-code --stacktrace-every=100
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import 'callback_tests_utils.dart';
-
-typedef SimpleAdditionType = Int32 Function(Int32, Int32);
-int simpleAddition(int x, int y) => x + y;
-
-void main() {
-  testManyCallbacks();
-}
-
-void testManyCallbacks() {
-  // Create enough callbacks (1000) to overflow one page of the JIT callback
-  // trampolines. The use of distinct exceptional return values forces separate
-  // trampolines.
-  final List<Pointer> pointers = [];
-
-  // All the parameters of 'fromFunction' are forced to be constant so that we
-  // only need to generate one trampoline per 'fromFunction' call-site.
-  //
-  // As a consequence, to force the creation of 1000 trampolines (and prevent
-  // any possible caching), we need literally 1000 call-sites.
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 0));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 1));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 2));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 3));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 4));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 5));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 6));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 7));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 8));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 9));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 10));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 11));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 12));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 13));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 14));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 15));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 16));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 17));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 18));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 19));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 20));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 21));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 22));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 23));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 24));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 25));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 26));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 27));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 28));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 29));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 30));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 31));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 32));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 33));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 34));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 35));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 36));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 37));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 38));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 39));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 40));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 41));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 42));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 43));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 44));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 45));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 46));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 47));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 48));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 49));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 50));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 51));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 52));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 53));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 54));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 55));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 56));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 57));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 58));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 59));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 60));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 61));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 62));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 63));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 64));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 65));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 66));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 67));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 68));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 69));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 70));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 71));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 72));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 73));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 74));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 75));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 76));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 77));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 78));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 79));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 80));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 81));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 82));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 83));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 84));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 85));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 86));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 87));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 88));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 89));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 90));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 91));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 92));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 93));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 94));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 95));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 96));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 97));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 98));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 99));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 100));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 101));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 102));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 103));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 104));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 105));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 106));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 107));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 108));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 109));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 110));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 111));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 112));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 113));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 114));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 115));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 116));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 117));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 118));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 119));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 120));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 121));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 122));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 123));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 124));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 125));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 126));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 127));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 128));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 129));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 130));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 131));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 132));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 133));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 134));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 135));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 136));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 137));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 138));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 139));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 140));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 141));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 142));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 143));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 144));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 145));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 146));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 147));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 148));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 149));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 150));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 151));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 152));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 153));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 154));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 155));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 156));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 157));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 158));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 159));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 160));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 161));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 162));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 163));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 164));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 165));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 166));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 167));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 168));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 169));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 170));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 171));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 172));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 173));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 174));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 175));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 176));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 177));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 178));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 179));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 180));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 181));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 182));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 183));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 184));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 185));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 186));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 187));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 188));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 189));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 190));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 191));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 192));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 193));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 194));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 195));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 196));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 197));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 198));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 199));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 200));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 201));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 202));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 203));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 204));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 205));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 206));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 207));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 208));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 209));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 210));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 211));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 212));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 213));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 214));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 215));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 216));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 217));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 218));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 219));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 220));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 221));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 222));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 223));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 224));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 225));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 226));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 227));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 228));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 229));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 230));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 231));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 232));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 233));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 234));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 235));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 236));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 237));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 238));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 239));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 240));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 241));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 242));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 243));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 244));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 245));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 246));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 247));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 248));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 249));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 250));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 251));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 252));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 253));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 254));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 255));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 256));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 257));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 258));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 259));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 260));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 261));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 262));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 263));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 264));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 265));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 266));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 267));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 268));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 269));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 270));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 271));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 272));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 273));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 274));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 275));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 276));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 277));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 278));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 279));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 280));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 281));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 282));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 283));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 284));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 285));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 286));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 287));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 288));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 289));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 290));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 291));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 292));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 293));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 294));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 295));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 296));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 297));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 298));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 299));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 300));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 301));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 302));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 303));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 304));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 305));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 306));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 307));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 308));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 309));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 310));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 311));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 312));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 313));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 314));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 315));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 316));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 317));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 318));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 319));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 320));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 321));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 322));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 323));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 324));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 325));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 326));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 327));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 328));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 329));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 330));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 331));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 332));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 333));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 334));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 335));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 336));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 337));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 338));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 339));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 340));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 341));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 342));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 343));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 344));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 345));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 346));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 347));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 348));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 349));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 350));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 351));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 352));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 353));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 354));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 355));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 356));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 357));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 358));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 359));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 360));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 361));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 362));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 363));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 364));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 365));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 366));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 373));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 374));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 375));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 385));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 388));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 389));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 390));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 391));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 393));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 394));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 395));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 396));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 397));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 398));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 399));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 401));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 402));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 403));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 405));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 407));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 408));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 411));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 412));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 413));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 418));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 420));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 424));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 425));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 427));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 429));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 430));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 433));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 434));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 435));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 438));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 440));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 443));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 444));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 450));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 461));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 484));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 495));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 499));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 516));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 521));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 522));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 523));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 528));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 529));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 531));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 532));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 533));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 534));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 537));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 538));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 543));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 544));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 548));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 549));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 550));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 551));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 554));
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-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 559));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 560));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 561));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 562));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 563));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 564));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 565));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 566));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 567));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 568));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 569));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 570));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 571));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 572));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 573));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 574));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 575));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 576));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 577));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 578));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 579));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 580));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 581));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 582));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 583));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 584));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 585));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 586));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 587));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 588));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 589));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 590));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 591));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 592));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 593));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 594));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 595));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 596));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 597));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 598));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 599));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 600));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 601));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 602));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 603));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 604));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 605));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 606));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 607));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 608));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 609));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 610));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 611));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 612));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 613));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 614));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 615));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 616));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 617));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 618));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 619));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 620));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 621));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 622));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 623));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 624));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 625));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 626));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 627));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 628));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 629));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 630));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 631));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 632));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 633));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 634));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 635));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 636));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 637));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 638));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 639));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 640));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 641));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 642));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 643));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 644));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 645));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 646));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 647));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 648));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 649));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 650));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 651));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 652));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 653));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 654));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 655));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 656));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 657));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 658));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 659));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 660));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 661));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 662));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 663));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 664));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 665));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 666));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 667));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 668));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 669));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 670));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 671));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 672));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 673));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 674));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 675));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 676));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 677));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 678));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 679));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 680));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 681));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 682));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 683));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 684));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 685));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 686));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 687));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 688));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 689));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 690));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 691));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 692));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 693));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 694));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 695));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 696));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 697));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 698));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 699));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 700));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 701));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 702));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 703));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 704));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 705));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 706));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 707));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 708));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 709));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 710));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 711));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 712));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 713));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 714));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 715));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 716));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 717));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 718));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 719));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 720));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 721));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 722));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 723));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 724));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 725));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 726));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 727));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 728));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 729));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 730));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 731));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 732));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 733));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 734));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 735));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 736));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 737));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 738));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 739));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 740));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 741));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 742));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 743));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 744));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 745));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 746));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 747));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 748));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 749));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 750));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 751));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 752));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 753));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 754));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 755));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 756));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 757));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 758));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 759));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 760));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 761));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 762));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 763));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 764));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 765));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 766));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 767));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 768));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 769));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 770));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 771));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 772));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 773));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 774));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 775));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 776));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 777));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 778));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 779));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 780));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 781));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 782));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 783));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 784));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 785));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 786));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 787));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 788));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 789));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 790));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 791));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 792));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 793));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 794));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 795));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 796));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 797));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 798));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 799));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 800));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 801));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 802));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 803));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 804));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 805));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 806));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 807));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 808));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 809));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 810));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 811));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 812));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 813));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 814));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 815));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 816));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 817));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 818));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 819));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 820));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 821));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 822));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 823));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 824));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 825));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 826));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 827));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 828));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 829));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 830));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 831));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 832));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 833));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 834));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 835));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 836));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 837));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 838));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 839));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 840));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 841));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 842));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 843));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 844));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 845));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 846));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 847));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 848));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 849));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 850));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 851));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 852));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 853));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 854));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 855));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 856));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 857));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 858));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 859));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 860));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 861));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 862));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 863));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 864));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 865));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 866));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 867));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 868));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 869));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 870));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 871));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 872));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 873));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 874));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 875));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 876));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 877));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 878));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 879));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 880));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 881));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 882));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 883));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 884));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 885));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 886));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 887));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 888));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 889));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 890));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 891));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 892));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 893));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 894));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 895));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 896));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 897));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 898));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 899));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 900));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 901));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 902));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 903));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 904));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 905));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 906));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 907));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 908));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 909));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 910));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 911));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 912));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 913));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 914));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 915));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 916));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 917));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 918));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 919));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 920));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 921));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 922));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 923));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 924));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 925));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 926));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 927));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 928));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 929));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 930));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 931));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 932));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 933));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 934));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 935));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 936));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 937));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 938));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 939));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 940));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 941));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 942));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 943));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 944));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 945));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 946));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 947));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 948));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 949));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 950));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 951));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 952));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 953));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 954));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 955));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 956));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 957));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 958));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 959));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 960));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 961));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 962));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 963));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 964));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 965));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 966));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 967));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 968));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 969));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 970));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 971));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 972));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 973));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 974));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 975));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 976));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 977));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 978));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 979));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 980));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 981));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 982));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 983));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 984));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 985));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 986));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 987));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 988));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 989));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 990));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 991));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 992));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 993));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 994));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 995));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 996));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 997));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 998));
-  pointers.add(Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 999));
-
-  for (final pointer in pointers) {
-    CallbackTest("SimpleAddition", pointer).run();
-  }
-}
diff --git a/tests/ffi_2/function_callbacks_structs_by_value_generated_test.dart b/tests/ffi_2/function_callbacks_structs_by_value_generated_test.dart
deleted file mode 100644
index 7d3796a4620..00000000000
--- a/tests/ffi_2/function_callbacks_structs_by_value_generated_test.dart
+++ /dev/null
@@ -1,12346 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// This file has been automatically generated. Please do not edit it manually.
-// Generated by tests/ffi/generator/structs_by_value_tests_generator.dart.
-//
-// SharedObjects=ffi_test_functions
-// VMOptions=
-// VMOptions=--deterministic --optimization-counter-threshold=20
-// VMOptions=--use-slow-path
-// VMOptions=--use-slow-path --stacktrace-every=100
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
-
-import 'callback_tests_utils.dart';
-
-import 'dylib_utils.dart';
-
-// Reuse the compound classes.
-import 'function_structs_by_value_generated_compounds.dart';
-
-final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-
-void main() {
-  testCases.forEach((t) {
-    print("==== Running " + t.name);
-    t.run();
-  });
-}
-
-final testCases = [
-  CallbackTest.withCheck(
-      "PassStruct1ByteIntx10",
-      Pointer.fromFunction<PassStruct1ByteIntx10Type>(passStruct1ByteIntx10, 0),
-      passStruct1ByteIntx10AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct3BytesHomogeneousUint8x10",
-      Pointer.fromFunction<PassStruct3BytesHomogeneousUint8x10Type>(
-          passStruct3BytesHomogeneousUint8x10, 0),
-      passStruct3BytesHomogeneousUint8x10AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct3BytesInt2ByteAlignedx10",
-      Pointer.fromFunction<PassStruct3BytesInt2ByteAlignedx10Type>(
-          passStruct3BytesInt2ByteAlignedx10, 0),
-      passStruct3BytesInt2ByteAlignedx10AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct4BytesHomogeneousInt16x10",
-      Pointer.fromFunction<PassStruct4BytesHomogeneousInt16x10Type>(
-          passStruct4BytesHomogeneousInt16x10, 0),
-      passStruct4BytesHomogeneousInt16x10AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct7BytesHomogeneousUint8x10",
-      Pointer.fromFunction<PassStruct7BytesHomogeneousUint8x10Type>(
-          passStruct7BytesHomogeneousUint8x10, 0),
-      passStruct7BytesHomogeneousUint8x10AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct7BytesInt4ByteAlignedx10",
-      Pointer.fromFunction<PassStruct7BytesInt4ByteAlignedx10Type>(
-          passStruct7BytesInt4ByteAlignedx10, 0),
-      passStruct7BytesInt4ByteAlignedx10AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct8BytesIntx10",
-      Pointer.fromFunction<PassStruct8BytesIntx10Type>(
-          passStruct8BytesIntx10, 0),
-      passStruct8BytesIntx10AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct8BytesHomogeneousFloatx10",
-      Pointer.fromFunction<PassStruct8BytesHomogeneousFloatx10Type>(
-          passStruct8BytesHomogeneousFloatx10, 0.0),
-      passStruct8BytesHomogeneousFloatx10AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct8BytesMixedx10",
-      Pointer.fromFunction<PassStruct8BytesMixedx10Type>(
-          passStruct8BytesMixedx10, 0.0),
-      passStruct8BytesMixedx10AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct9BytesHomogeneousUint8x10",
-      Pointer.fromFunction<PassStruct9BytesHomogeneousUint8x10Type>(
-          passStruct9BytesHomogeneousUint8x10, 0),
-      passStruct9BytesHomogeneousUint8x10AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct9BytesInt4Or8ByteAlignedx10",
-      Pointer.fromFunction<PassStruct9BytesInt4Or8ByteAlignedx10Type>(
-          passStruct9BytesInt4Or8ByteAlignedx10, 0),
-      passStruct9BytesInt4Or8ByteAlignedx10AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct12BytesHomogeneousFloatx6",
-      Pointer.fromFunction<PassStruct12BytesHomogeneousFloatx6Type>(
-          passStruct12BytesHomogeneousFloatx6, 0.0),
-      passStruct12BytesHomogeneousFloatx6AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct16BytesHomogeneousFloatx5",
-      Pointer.fromFunction<PassStruct16BytesHomogeneousFloatx5Type>(
-          passStruct16BytesHomogeneousFloatx5, 0.0),
-      passStruct16BytesHomogeneousFloatx5AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct16BytesMixedx10",
-      Pointer.fromFunction<PassStruct16BytesMixedx10Type>(
-          passStruct16BytesMixedx10, 0.0),
-      passStruct16BytesMixedx10AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct16BytesMixed2x10",
-      Pointer.fromFunction<PassStruct16BytesMixed2x10Type>(
-          passStruct16BytesMixed2x10, 0.0),
-      passStruct16BytesMixed2x10AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct17BytesIntx10",
-      Pointer.fromFunction<PassStruct17BytesIntx10Type>(
-          passStruct17BytesIntx10, 0),
-      passStruct17BytesIntx10AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct19BytesHomogeneousUint8x10",
-      Pointer.fromFunction<PassStruct19BytesHomogeneousUint8x10Type>(
-          passStruct19BytesHomogeneousUint8x10, 0),
-      passStruct19BytesHomogeneousUint8x10AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct20BytesHomogeneousInt32x10",
-      Pointer.fromFunction<PassStruct20BytesHomogeneousInt32x10Type>(
-          passStruct20BytesHomogeneousInt32x10, 0),
-      passStruct20BytesHomogeneousInt32x10AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct20BytesHomogeneousFloat",
-      Pointer.fromFunction<PassStruct20BytesHomogeneousFloatType>(
-          passStruct20BytesHomogeneousFloat, 0.0),
-      passStruct20BytesHomogeneousFloatAfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct32BytesHomogeneousDoublex5",
-      Pointer.fromFunction<PassStruct32BytesHomogeneousDoublex5Type>(
-          passStruct32BytesHomogeneousDoublex5, 0.0),
-      passStruct32BytesHomogeneousDoublex5AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct40BytesHomogeneousDouble",
-      Pointer.fromFunction<PassStruct40BytesHomogeneousDoubleType>(
-          passStruct40BytesHomogeneousDouble, 0.0),
-      passStruct40BytesHomogeneousDoubleAfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct1024BytesHomogeneousUint64",
-      Pointer.fromFunction<PassStruct1024BytesHomogeneousUint64Type>(
-          passStruct1024BytesHomogeneousUint64, 0),
-      passStruct1024BytesHomogeneousUint64AfterCallback),
-  CallbackTest.withCheck(
-      "PassFloatStruct16BytesHomogeneousFloatFloatStruct1",
-      Pointer.fromFunction<
-              PassFloatStruct16BytesHomogeneousFloatFloatStruct1Type>(
-          passFloatStruct16BytesHomogeneousFloatFloatStruct1, 0.0),
-      passFloatStruct16BytesHomogeneousFloatFloatStruct1AfterCallback),
-  CallbackTest.withCheck(
-      "PassFloatStruct32BytesHomogeneousDoubleFloatStruct",
-      Pointer.fromFunction<
-              PassFloatStruct32BytesHomogeneousDoubleFloatStructType>(
-          passFloatStruct32BytesHomogeneousDoubleFloatStruct, 0.0),
-      passFloatStruct32BytesHomogeneousDoubleFloatStructAfterCallback),
-  CallbackTest.withCheck(
-      "PassInt8Struct16BytesMixedInt8Struct16BytesMixedIn",
-      Pointer.fromFunction<
-              PassInt8Struct16BytesMixedInt8Struct16BytesMixedInType>(
-          passInt8Struct16BytesMixedInt8Struct16BytesMixedIn, 0.0),
-      passInt8Struct16BytesMixedInt8Struct16BytesMixedInAfterCallback),
-  CallbackTest.withCheck(
-      "PassDoublex6Struct16BytesMixedx4Int32",
-      Pointer.fromFunction<PassDoublex6Struct16BytesMixedx4Int32Type>(
-          passDoublex6Struct16BytesMixedx4Int32, 0.0),
-      passDoublex6Struct16BytesMixedx4Int32AfterCallback),
-  CallbackTest.withCheck(
-      "PassInt32x4Struct16BytesMixedx4Double",
-      Pointer.fromFunction<PassInt32x4Struct16BytesMixedx4DoubleType>(
-          passInt32x4Struct16BytesMixedx4Double, 0.0),
-      passInt32x4Struct16BytesMixedx4DoubleAfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct40BytesHomogeneousDoubleStruct4BytesHomo",
-      Pointer.fromFunction<
-              PassStruct40BytesHomogeneousDoubleStruct4BytesHomoType>(
-          passStruct40BytesHomogeneousDoubleStruct4BytesHomo, 0.0),
-      passStruct40BytesHomogeneousDoubleStruct4BytesHomoAfterCallback),
-  CallbackTest.withCheck(
-      "PassInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int",
-      Pointer.fromFunction<
-              PassInt32x8Doublex8Int64Int8Struct1ByteIntInt64IntType>(
-          passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int, 0.0),
-      passInt32x8Doublex8Int64Int8Struct1ByteIntInt64IntAfterCallback),
-  CallbackTest.withCheck(
-      "PassStructAlignmentInt16",
-      Pointer.fromFunction<PassStructAlignmentInt16Type>(
-          passStructAlignmentInt16, 0),
-      passStructAlignmentInt16AfterCallback),
-  CallbackTest.withCheck(
-      "PassStructAlignmentInt32",
-      Pointer.fromFunction<PassStructAlignmentInt32Type>(
-          passStructAlignmentInt32, 0),
-      passStructAlignmentInt32AfterCallback),
-  CallbackTest.withCheck(
-      "PassStructAlignmentInt64",
-      Pointer.fromFunction<PassStructAlignmentInt64Type>(
-          passStructAlignmentInt64, 0),
-      passStructAlignmentInt64AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct8BytesNestedIntx10",
-      Pointer.fromFunction<PassStruct8BytesNestedIntx10Type>(
-          passStruct8BytesNestedIntx10, 0),
-      passStruct8BytesNestedIntx10AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct8BytesNestedFloatx10",
-      Pointer.fromFunction<PassStruct8BytesNestedFloatx10Type>(
-          passStruct8BytesNestedFloatx10, 0.0),
-      passStruct8BytesNestedFloatx10AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct8BytesNestedFloat2x10",
-      Pointer.fromFunction<PassStruct8BytesNestedFloat2x10Type>(
-          passStruct8BytesNestedFloat2x10, 0.0),
-      passStruct8BytesNestedFloat2x10AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct8BytesNestedMixedx10",
-      Pointer.fromFunction<PassStruct8BytesNestedMixedx10Type>(
-          passStruct8BytesNestedMixedx10, 0.0),
-      passStruct8BytesNestedMixedx10AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct16BytesNestedIntx2",
-      Pointer.fromFunction<PassStruct16BytesNestedIntx2Type>(
-          passStruct16BytesNestedIntx2, 0),
-      passStruct16BytesNestedIntx2AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct32BytesNestedIntx2",
-      Pointer.fromFunction<PassStruct32BytesNestedIntx2Type>(
-          passStruct32BytesNestedIntx2, 0),
-      passStruct32BytesNestedIntx2AfterCallback),
-  CallbackTest.withCheck(
-      "PassStructNestedIntStructAlignmentInt16",
-      Pointer.fromFunction<PassStructNestedIntStructAlignmentInt16Type>(
-          passStructNestedIntStructAlignmentInt16, 0),
-      passStructNestedIntStructAlignmentInt16AfterCallback),
-  CallbackTest.withCheck(
-      "PassStructNestedIntStructAlignmentInt32",
-      Pointer.fromFunction<PassStructNestedIntStructAlignmentInt32Type>(
-          passStructNestedIntStructAlignmentInt32, 0),
-      passStructNestedIntStructAlignmentInt32AfterCallback),
-  CallbackTest.withCheck(
-      "PassStructNestedIntStructAlignmentInt64",
-      Pointer.fromFunction<PassStructNestedIntStructAlignmentInt64Type>(
-          passStructNestedIntStructAlignmentInt64, 0),
-      passStructNestedIntStructAlignmentInt64AfterCallback),
-  CallbackTest.withCheck(
-      "PassStructNestedIrregularEvenBiggerx4",
-      Pointer.fromFunction<PassStructNestedIrregularEvenBiggerx4Type>(
-          passStructNestedIrregularEvenBiggerx4, 0.0),
-      passStructNestedIrregularEvenBiggerx4AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct8BytesInlineArrayIntx4",
-      Pointer.fromFunction<PassStruct8BytesInlineArrayIntx4Type>(
-          passStruct8BytesInlineArrayIntx4, 0),
-      passStruct8BytesInlineArrayIntx4AfterCallback),
-  CallbackTest.withCheck(
-      "PassStructInlineArrayIrregularx4",
-      Pointer.fromFunction<PassStructInlineArrayIrregularx4Type>(
-          passStructInlineArrayIrregularx4, 0),
-      passStructInlineArrayIrregularx4AfterCallback),
-  CallbackTest.withCheck(
-      "PassStructInlineArray100Bytes",
-      Pointer.fromFunction<PassStructInlineArray100BytesType>(
-          passStructInlineArray100Bytes, 0),
-      passStructInlineArray100BytesAfterCallback),
-  CallbackTest.withCheck(
-      "PassStructStruct16BytesHomogeneousFloat2x5",
-      Pointer.fromFunction<PassStructStruct16BytesHomogeneousFloat2x5Type>(
-          passStructStruct16BytesHomogeneousFloat2x5, 0.0),
-      passStructStruct16BytesHomogeneousFloat2x5AfterCallback),
-  CallbackTest.withCheck(
-      "PassStructStruct32BytesHomogeneousDouble2x5",
-      Pointer.fromFunction<PassStructStruct32BytesHomogeneousDouble2x5Type>(
-          passStructStruct32BytesHomogeneousDouble2x5, 0.0),
-      passStructStruct32BytesHomogeneousDouble2x5AfterCallback),
-  CallbackTest.withCheck(
-      "PassStructStruct16BytesMixed3x10",
-      Pointer.fromFunction<PassStructStruct16BytesMixed3x10Type>(
-          passStructStruct16BytesMixed3x10, 0.0),
-      passStructStruct16BytesMixed3x10AfterCallback),
-  CallbackTest.withCheck(
-      "PassUint8Struct32BytesInlineArrayMultiDimensionalI",
-      Pointer.fromFunction<
-              PassUint8Struct32BytesInlineArrayMultiDimensionalIType>(
-          passUint8Struct32BytesInlineArrayMultiDimensionalI, 0),
-      passUint8Struct32BytesInlineArrayMultiDimensionalIAfterCallback),
-  CallbackTest.withCheck(
-      "PassUint8Struct4BytesInlineArrayMultiDimensionalIn",
-      Pointer.fromFunction<
-              PassUint8Struct4BytesInlineArrayMultiDimensionalInType>(
-          passUint8Struct4BytesInlineArrayMultiDimensionalIn, 0),
-      passUint8Struct4BytesInlineArrayMultiDimensionalInAfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct3BytesPackedIntx10",
-      Pointer.fromFunction<PassStruct3BytesPackedIntx10Type>(
-          passStruct3BytesPackedIntx10, 0),
-      passStruct3BytesPackedIntx10AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct8BytesPackedIntx10",
-      Pointer.fromFunction<PassStruct8BytesPackedIntx10Type>(
-          passStruct8BytesPackedIntx10, 0),
-      passStruct8BytesPackedIntx10AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct9BytesPackedMixedx10DoubleInt32x2",
-      Pointer.fromFunction<PassStruct9BytesPackedMixedx10DoubleInt32x2Type>(
-          passStruct9BytesPackedMixedx10DoubleInt32x2, 0.0),
-      passStruct9BytesPackedMixedx10DoubleInt32x2AfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct5BytesPackedMixed",
-      Pointer.fromFunction<PassStruct5BytesPackedMixedType>(
-          passStruct5BytesPackedMixed, 0.0),
-      passStruct5BytesPackedMixedAfterCallback),
-  CallbackTest.withCheck(
-      "PassStructNestedAlignmentStruct5BytesPackedMixed",
-      Pointer.fromFunction<
-              PassStructNestedAlignmentStruct5BytesPackedMixedType>(
-          passStructNestedAlignmentStruct5BytesPackedMixed, 0.0),
-      passStructNestedAlignmentStruct5BytesPackedMixedAfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct6BytesInlineArrayInt",
-      Pointer.fromFunction<PassStruct6BytesInlineArrayIntType>(
-          passStruct6BytesInlineArrayInt, 0.0),
-      passStruct6BytesInlineArrayIntAfterCallback),
-  CallbackTest.withCheck(
-      "PassStruct15BytesInlineArrayMixed",
-      Pointer.fromFunction<PassStruct15BytesInlineArrayMixedType>(
-          passStruct15BytesInlineArrayMixed, 0.0),
-      passStruct15BytesInlineArrayMixedAfterCallback),
-  CallbackTest.withCheck(
-      "PassUnion4BytesMixedx10",
-      Pointer.fromFunction<PassUnion4BytesMixedx10Type>(
-          passUnion4BytesMixedx10, 0.0),
-      passUnion4BytesMixedx10AfterCallback),
-  CallbackTest.withCheck(
-      "PassUnion8BytesNestedFloatx10",
-      Pointer.fromFunction<PassUnion8BytesNestedFloatx10Type>(
-          passUnion8BytesNestedFloatx10, 0.0),
-      passUnion8BytesNestedFloatx10AfterCallback),
-  CallbackTest.withCheck(
-      "PassUnion9BytesNestedIntx10",
-      Pointer.fromFunction<PassUnion9BytesNestedIntx10Type>(
-          passUnion9BytesNestedIntx10, 0.0),
-      passUnion9BytesNestedIntx10AfterCallback),
-  CallbackTest.withCheck(
-      "PassUnion16BytesNestedInlineArrayFloatx10",
-      Pointer.fromFunction<PassUnion16BytesNestedInlineArrayFloatx10Type>(
-          passUnion16BytesNestedInlineArrayFloatx10, 0.0),
-      passUnion16BytesNestedInlineArrayFloatx10AfterCallback),
-  CallbackTest.withCheck(
-      "PassUnion16BytesNestedFloatx10",
-      Pointer.fromFunction<PassUnion16BytesNestedFloatx10Type>(
-          passUnion16BytesNestedFloatx10, 0.0),
-      passUnion16BytesNestedFloatx10AfterCallback),
-  CallbackTest.withCheck(
-      "PassUint8Boolx9Struct10BytesHomogeneousBoolBool",
-      Pointer.fromFunction<PassUint8Boolx9Struct10BytesHomogeneousBoolBoolType>(
-          passUint8Boolx9Struct10BytesHomogeneousBoolBool, 0),
-      passUint8Boolx9Struct10BytesHomogeneousBoolBoolAfterCallback),
-  CallbackTest.withCheck(
-      "PassUint8Boolx9Struct10BytesInlineArrayBoolBool",
-      Pointer.fromFunction<PassUint8Boolx9Struct10BytesInlineArrayBoolBoolType>(
-          passUint8Boolx9Struct10BytesInlineArrayBoolBool, 0),
-      passUint8Boolx9Struct10BytesInlineArrayBoolBoolAfterCallback),
-  CallbackTest.withCheck(
-      "PassUint8Struct1ByteBool",
-      Pointer.fromFunction<PassUint8Struct1ByteBoolType>(
-          passUint8Struct1ByteBool, false),
-      passUint8Struct1ByteBoolAfterCallback),
-  CallbackTest.withCheck(
-      "PassWCharStructInlineArrayIntUintPtrx2LongUnsigned",
-      Pointer.fromFunction<
-              PassWCharStructInlineArrayIntUintPtrx2LongUnsignedType>(
-          passWCharStructInlineArrayIntUintPtrx2LongUnsigned, 0),
-      passWCharStructInlineArrayIntUintPtrx2LongUnsignedAfterCallback),
-  CallbackTest.withCheck(
-      "PassInt64x7Struct12BytesHomogeneousInt32",
-      Pointer.fromFunction<PassInt64x7Struct12BytesHomogeneousInt32Type>(
-          passInt64x7Struct12BytesHomogeneousInt32, 0),
-      passInt64x7Struct12BytesHomogeneousInt32AfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct1ByteInt",
-      Pointer.fromFunction<ReturnStruct1ByteIntType>(returnStruct1ByteInt),
-      returnStruct1ByteIntAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct3BytesHomogeneousUint8",
-      Pointer.fromFunction<ReturnStruct3BytesHomogeneousUint8Type>(
-          returnStruct3BytesHomogeneousUint8),
-      returnStruct3BytesHomogeneousUint8AfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct3BytesInt2ByteAligned",
-      Pointer.fromFunction<ReturnStruct3BytesInt2ByteAlignedType>(
-          returnStruct3BytesInt2ByteAligned),
-      returnStruct3BytesInt2ByteAlignedAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct4BytesHomogeneousInt16",
-      Pointer.fromFunction<ReturnStruct4BytesHomogeneousInt16Type>(
-          returnStruct4BytesHomogeneousInt16),
-      returnStruct4BytesHomogeneousInt16AfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct7BytesHomogeneousUint8",
-      Pointer.fromFunction<ReturnStruct7BytesHomogeneousUint8Type>(
-          returnStruct7BytesHomogeneousUint8),
-      returnStruct7BytesHomogeneousUint8AfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct7BytesInt4ByteAligned",
-      Pointer.fromFunction<ReturnStruct7BytesInt4ByteAlignedType>(
-          returnStruct7BytesInt4ByteAligned),
-      returnStruct7BytesInt4ByteAlignedAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct8BytesInt",
-      Pointer.fromFunction<ReturnStruct8BytesIntType>(returnStruct8BytesInt),
-      returnStruct8BytesIntAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct8BytesHomogeneousFloat",
-      Pointer.fromFunction<ReturnStruct8BytesHomogeneousFloatType>(
-          returnStruct8BytesHomogeneousFloat),
-      returnStruct8BytesHomogeneousFloatAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct8BytesMixed",
-      Pointer.fromFunction<ReturnStruct8BytesMixedType>(
-          returnStruct8BytesMixed),
-      returnStruct8BytesMixedAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct9BytesHomogeneousUint8",
-      Pointer.fromFunction<ReturnStruct9BytesHomogeneousUint8Type>(
-          returnStruct9BytesHomogeneousUint8),
-      returnStruct9BytesHomogeneousUint8AfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct9BytesInt4Or8ByteAligned",
-      Pointer.fromFunction<ReturnStruct9BytesInt4Or8ByteAlignedType>(
-          returnStruct9BytesInt4Or8ByteAligned),
-      returnStruct9BytesInt4Or8ByteAlignedAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct12BytesHomogeneousFloat",
-      Pointer.fromFunction<ReturnStruct12BytesHomogeneousFloatType>(
-          returnStruct12BytesHomogeneousFloat),
-      returnStruct12BytesHomogeneousFloatAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct16BytesHomogeneousFloat",
-      Pointer.fromFunction<ReturnStruct16BytesHomogeneousFloatType>(
-          returnStruct16BytesHomogeneousFloat),
-      returnStruct16BytesHomogeneousFloatAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct16BytesMixed",
-      Pointer.fromFunction<ReturnStruct16BytesMixedType>(
-          returnStruct16BytesMixed),
-      returnStruct16BytesMixedAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct16BytesMixed2",
-      Pointer.fromFunction<ReturnStruct16BytesMixed2Type>(
-          returnStruct16BytesMixed2),
-      returnStruct16BytesMixed2AfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct17BytesInt",
-      Pointer.fromFunction<ReturnStruct17BytesIntType>(returnStruct17BytesInt),
-      returnStruct17BytesIntAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct19BytesHomogeneousUint8",
-      Pointer.fromFunction<ReturnStruct19BytesHomogeneousUint8Type>(
-          returnStruct19BytesHomogeneousUint8),
-      returnStruct19BytesHomogeneousUint8AfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct20BytesHomogeneousInt32",
-      Pointer.fromFunction<ReturnStruct20BytesHomogeneousInt32Type>(
-          returnStruct20BytesHomogeneousInt32),
-      returnStruct20BytesHomogeneousInt32AfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct20BytesHomogeneousFloat",
-      Pointer.fromFunction<ReturnStruct20BytesHomogeneousFloatType>(
-          returnStruct20BytesHomogeneousFloat),
-      returnStruct20BytesHomogeneousFloatAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct32BytesHomogeneousDouble",
-      Pointer.fromFunction<ReturnStruct32BytesHomogeneousDoubleType>(
-          returnStruct32BytesHomogeneousDouble),
-      returnStruct32BytesHomogeneousDoubleAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct40BytesHomogeneousDouble",
-      Pointer.fromFunction<ReturnStruct40BytesHomogeneousDoubleType>(
-          returnStruct40BytesHomogeneousDouble),
-      returnStruct40BytesHomogeneousDoubleAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct1024BytesHomogeneousUint64",
-      Pointer.fromFunction<ReturnStruct1024BytesHomogeneousUint64Type>(
-          returnStruct1024BytesHomogeneousUint64),
-      returnStruct1024BytesHomogeneousUint64AfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct3BytesPackedInt",
-      Pointer.fromFunction<ReturnStruct3BytesPackedIntType>(
-          returnStruct3BytesPackedInt),
-      returnStruct3BytesPackedIntAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct8BytesPackedInt",
-      Pointer.fromFunction<ReturnStruct8BytesPackedIntType>(
-          returnStruct8BytesPackedInt),
-      returnStruct8BytesPackedIntAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct9BytesPackedMixed",
-      Pointer.fromFunction<ReturnStruct9BytesPackedMixedType>(
-          returnStruct9BytesPackedMixed),
-      returnStruct9BytesPackedMixedAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnUnion4BytesMixed",
-      Pointer.fromFunction<ReturnUnion4BytesMixedType>(returnUnion4BytesMixed),
-      returnUnion4BytesMixedAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnUnion8BytesNestedFloat",
-      Pointer.fromFunction<ReturnUnion8BytesNestedFloatType>(
-          returnUnion8BytesNestedFloat),
-      returnUnion8BytesNestedFloatAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnUnion9BytesNestedInt",
-      Pointer.fromFunction<ReturnUnion9BytesNestedIntType>(
-          returnUnion9BytesNestedInt),
-      returnUnion9BytesNestedIntAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnUnion16BytesNestedFloat",
-      Pointer.fromFunction<ReturnUnion16BytesNestedFloatType>(
-          returnUnion16BytesNestedFloat),
-      returnUnion16BytesNestedFloatAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStructArgumentStruct1ByteInt",
-      Pointer.fromFunction<ReturnStructArgumentStruct1ByteIntType>(
-          returnStructArgumentStruct1ByteInt),
-      returnStructArgumentStruct1ByteIntAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStructArgumentInt32x8Struct1ByteInt",
-      Pointer.fromFunction<ReturnStructArgumentInt32x8Struct1ByteIntType>(
-          returnStructArgumentInt32x8Struct1ByteInt),
-      returnStructArgumentInt32x8Struct1ByteIntAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStructArgumentStruct8BytesHomogeneousFloat",
-      Pointer.fromFunction<
-              ReturnStructArgumentStruct8BytesHomogeneousFloatType>(
-          returnStructArgumentStruct8BytesHomogeneousFloat),
-      returnStructArgumentStruct8BytesHomogeneousFloatAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStructArgumentStruct20BytesHomogeneousInt32",
-      Pointer.fromFunction<
-              ReturnStructArgumentStruct20BytesHomogeneousInt32Type>(
-          returnStructArgumentStruct20BytesHomogeneousInt32),
-      returnStructArgumentStruct20BytesHomogeneousInt32AfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStructArgumentInt32x8Struct20BytesHomogeneou",
-      Pointer.fromFunction<
-              ReturnStructArgumentInt32x8Struct20BytesHomogeneouType>(
-          returnStructArgumentInt32x8Struct20BytesHomogeneou),
-      returnStructArgumentInt32x8Struct20BytesHomogeneouAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStructArgumentStruct8BytesInlineArrayInt",
-      Pointer.fromFunction<ReturnStructArgumentStruct8BytesInlineArrayIntType>(
-          returnStructArgumentStruct8BytesInlineArrayInt),
-      returnStructArgumentStruct8BytesInlineArrayIntAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStructArgumentStructStruct16BytesHomogeneous",
-      Pointer.fromFunction<
-              ReturnStructArgumentStructStruct16BytesHomogeneousType>(
-          returnStructArgumentStructStruct16BytesHomogeneous),
-      returnStructArgumentStructStruct16BytesHomogeneousAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStructArgumentStructStruct32BytesHomogeneous",
-      Pointer.fromFunction<
-              ReturnStructArgumentStructStruct32BytesHomogeneousType>(
-          returnStructArgumentStructStruct32BytesHomogeneous),
-      returnStructArgumentStructStruct32BytesHomogeneousAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStructArgumentStructStruct16BytesMixed3",
-      Pointer.fromFunction<ReturnStructArgumentStructStruct16BytesMixed3Type>(
-          returnStructArgumentStructStruct16BytesMixed3),
-      returnStructArgumentStructStruct16BytesMixed3AfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStructAlignmentInt16",
-      Pointer.fromFunction<ReturnStructAlignmentInt16Type>(
-          returnStructAlignmentInt16),
-      returnStructAlignmentInt16AfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStructAlignmentInt32",
-      Pointer.fromFunction<ReturnStructAlignmentInt32Type>(
-          returnStructAlignmentInt32),
-      returnStructAlignmentInt32AfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStructAlignmentInt64",
-      Pointer.fromFunction<ReturnStructAlignmentInt64Type>(
-          returnStructAlignmentInt64),
-      returnStructAlignmentInt64AfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct8BytesNestedInt",
-      Pointer.fromFunction<ReturnStruct8BytesNestedIntType>(
-          returnStruct8BytesNestedInt),
-      returnStruct8BytesNestedIntAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct8BytesNestedFloat",
-      Pointer.fromFunction<ReturnStruct8BytesNestedFloatType>(
-          returnStruct8BytesNestedFloat),
-      returnStruct8BytesNestedFloatAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct8BytesNestedFloat2",
-      Pointer.fromFunction<ReturnStruct8BytesNestedFloat2Type>(
-          returnStruct8BytesNestedFloat2),
-      returnStruct8BytesNestedFloat2AfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct8BytesNestedMixed",
-      Pointer.fromFunction<ReturnStruct8BytesNestedMixedType>(
-          returnStruct8BytesNestedMixed),
-      returnStruct8BytesNestedMixedAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct16BytesNestedInt",
-      Pointer.fromFunction<ReturnStruct16BytesNestedIntType>(
-          returnStruct16BytesNestedInt),
-      returnStruct16BytesNestedIntAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStruct32BytesNestedInt",
-      Pointer.fromFunction<ReturnStruct32BytesNestedIntType>(
-          returnStruct32BytesNestedInt),
-      returnStruct32BytesNestedIntAfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStructNestedIntStructAlignmentInt16",
-      Pointer.fromFunction<ReturnStructNestedIntStructAlignmentInt16Type>(
-          returnStructNestedIntStructAlignmentInt16),
-      returnStructNestedIntStructAlignmentInt16AfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStructNestedIntStructAlignmentInt32",
-      Pointer.fromFunction<ReturnStructNestedIntStructAlignmentInt32Type>(
-          returnStructNestedIntStructAlignmentInt32),
-      returnStructNestedIntStructAlignmentInt32AfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStructNestedIntStructAlignmentInt64",
-      Pointer.fromFunction<ReturnStructNestedIntStructAlignmentInt64Type>(
-          returnStructNestedIntStructAlignmentInt64),
-      returnStructNestedIntStructAlignmentInt64AfterCallback),
-  CallbackTest.withCheck(
-      "ReturnStructNestedIrregularEvenBigger",
-      Pointer.fromFunction<ReturnStructNestedIrregularEvenBiggerType>(
-          returnStructNestedIrregularEvenBigger),
-      returnStructNestedIrregularEvenBiggerAfterCallback),
-];
-typedef PassStruct1ByteIntx10Type = Int64 Function(
-    Struct1ByteInt,
-    Struct1ByteInt,
-    Struct1ByteInt,
-    Struct1ByteInt,
-    Struct1ByteInt,
-    Struct1ByteInt,
-    Struct1ByteInt,
-    Struct1ByteInt,
-    Struct1ByteInt,
-    Struct1ByteInt);
-
-// Global variables to be able to test inputs after callback returned.
-Struct1ByteInt passStruct1ByteIntx10_a0 =
-    Pointer<Struct1ByteInt>.fromAddress(0).ref;
-Struct1ByteInt passStruct1ByteIntx10_a1 =
-    Pointer<Struct1ByteInt>.fromAddress(0).ref;
-Struct1ByteInt passStruct1ByteIntx10_a2 =
-    Pointer<Struct1ByteInt>.fromAddress(0).ref;
-Struct1ByteInt passStruct1ByteIntx10_a3 =
-    Pointer<Struct1ByteInt>.fromAddress(0).ref;
-Struct1ByteInt passStruct1ByteIntx10_a4 =
-    Pointer<Struct1ByteInt>.fromAddress(0).ref;
-Struct1ByteInt passStruct1ByteIntx10_a5 =
-    Pointer<Struct1ByteInt>.fromAddress(0).ref;
-Struct1ByteInt passStruct1ByteIntx10_a6 =
-    Pointer<Struct1ByteInt>.fromAddress(0).ref;
-Struct1ByteInt passStruct1ByteIntx10_a7 =
-    Pointer<Struct1ByteInt>.fromAddress(0).ref;
-Struct1ByteInt passStruct1ByteIntx10_a8 =
-    Pointer<Struct1ByteInt>.fromAddress(0).ref;
-Struct1ByteInt passStruct1ByteIntx10_a9 =
-    Pointer<Struct1ByteInt>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStruct1ByteIntx10Result = 0;
-
-int passStruct1ByteIntx10CalculateResult() {
-  int result = 0;
-
-  result += passStruct1ByteIntx10_a0.a0;
-  result += passStruct1ByteIntx10_a1.a0;
-  result += passStruct1ByteIntx10_a2.a0;
-  result += passStruct1ByteIntx10_a3.a0;
-  result += passStruct1ByteIntx10_a4.a0;
-  result += passStruct1ByteIntx10_a5.a0;
-  result += passStruct1ByteIntx10_a6.a0;
-  result += passStruct1ByteIntx10_a7.a0;
-  result += passStruct1ByteIntx10_a8.a0;
-  result += passStruct1ByteIntx10_a9.a0;
-
-  passStruct1ByteIntx10Result = result;
-
-  return result;
-}
-
-/// Smallest struct with data.
-/// 10 struct arguments will exhaust available registers.
-int passStruct1ByteIntx10(
-    Struct1ByteInt a0,
-    Struct1ByteInt a1,
-    Struct1ByteInt a2,
-    Struct1ByteInt a3,
-    Struct1ByteInt a4,
-    Struct1ByteInt a5,
-    Struct1ByteInt a6,
-    Struct1ByteInt a7,
-    Struct1ByteInt a8,
-    Struct1ByteInt a9) {
-  print(
-      "passStruct1ByteIntx10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct1ByteIntx10 throwing on purpose!");
-  }
-
-  passStruct1ByteIntx10_a0 = a0;
-  passStruct1ByteIntx10_a1 = a1;
-  passStruct1ByteIntx10_a2 = a2;
-  passStruct1ByteIntx10_a3 = a3;
-  passStruct1ByteIntx10_a4 = a4;
-  passStruct1ByteIntx10_a5 = a5;
-  passStruct1ByteIntx10_a6 = a6;
-  passStruct1ByteIntx10_a7 = a7;
-  passStruct1ByteIntx10_a8 = a8;
-  passStruct1ByteIntx10_a9 = a9;
-
-  final result = passStruct1ByteIntx10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct1ByteIntx10AfterCallback() {
-  final result = passStruct1ByteIntx10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(5, result);
-}
-
-typedef PassStruct3BytesHomogeneousUint8x10Type = Int64 Function(
-    Struct3BytesHomogeneousUint8,
-    Struct3BytesHomogeneousUint8,
-    Struct3BytesHomogeneousUint8,
-    Struct3BytesHomogeneousUint8,
-    Struct3BytesHomogeneousUint8,
-    Struct3BytesHomogeneousUint8,
-    Struct3BytesHomogeneousUint8,
-    Struct3BytesHomogeneousUint8,
-    Struct3BytesHomogeneousUint8,
-    Struct3BytesHomogeneousUint8);
-
-// Global variables to be able to test inputs after callback returned.
-Struct3BytesHomogeneousUint8 passStruct3BytesHomogeneousUint8x10_a0 =
-    Pointer<Struct3BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct3BytesHomogeneousUint8 passStruct3BytesHomogeneousUint8x10_a1 =
-    Pointer<Struct3BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct3BytesHomogeneousUint8 passStruct3BytesHomogeneousUint8x10_a2 =
-    Pointer<Struct3BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct3BytesHomogeneousUint8 passStruct3BytesHomogeneousUint8x10_a3 =
-    Pointer<Struct3BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct3BytesHomogeneousUint8 passStruct3BytesHomogeneousUint8x10_a4 =
-    Pointer<Struct3BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct3BytesHomogeneousUint8 passStruct3BytesHomogeneousUint8x10_a5 =
-    Pointer<Struct3BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct3BytesHomogeneousUint8 passStruct3BytesHomogeneousUint8x10_a6 =
-    Pointer<Struct3BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct3BytesHomogeneousUint8 passStruct3BytesHomogeneousUint8x10_a7 =
-    Pointer<Struct3BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct3BytesHomogeneousUint8 passStruct3BytesHomogeneousUint8x10_a8 =
-    Pointer<Struct3BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct3BytesHomogeneousUint8 passStruct3BytesHomogeneousUint8x10_a9 =
-    Pointer<Struct3BytesHomogeneousUint8>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStruct3BytesHomogeneousUint8x10Result = 0;
-
-int passStruct3BytesHomogeneousUint8x10CalculateResult() {
-  int result = 0;
-
-  result += passStruct3BytesHomogeneousUint8x10_a0.a0;
-  result += passStruct3BytesHomogeneousUint8x10_a0.a1;
-  result += passStruct3BytesHomogeneousUint8x10_a0.a2;
-  result += passStruct3BytesHomogeneousUint8x10_a1.a0;
-  result += passStruct3BytesHomogeneousUint8x10_a1.a1;
-  result += passStruct3BytesHomogeneousUint8x10_a1.a2;
-  result += passStruct3BytesHomogeneousUint8x10_a2.a0;
-  result += passStruct3BytesHomogeneousUint8x10_a2.a1;
-  result += passStruct3BytesHomogeneousUint8x10_a2.a2;
-  result += passStruct3BytesHomogeneousUint8x10_a3.a0;
-  result += passStruct3BytesHomogeneousUint8x10_a3.a1;
-  result += passStruct3BytesHomogeneousUint8x10_a3.a2;
-  result += passStruct3BytesHomogeneousUint8x10_a4.a0;
-  result += passStruct3BytesHomogeneousUint8x10_a4.a1;
-  result += passStruct3BytesHomogeneousUint8x10_a4.a2;
-  result += passStruct3BytesHomogeneousUint8x10_a5.a0;
-  result += passStruct3BytesHomogeneousUint8x10_a5.a1;
-  result += passStruct3BytesHomogeneousUint8x10_a5.a2;
-  result += passStruct3BytesHomogeneousUint8x10_a6.a0;
-  result += passStruct3BytesHomogeneousUint8x10_a6.a1;
-  result += passStruct3BytesHomogeneousUint8x10_a6.a2;
-  result += passStruct3BytesHomogeneousUint8x10_a7.a0;
-  result += passStruct3BytesHomogeneousUint8x10_a7.a1;
-  result += passStruct3BytesHomogeneousUint8x10_a7.a2;
-  result += passStruct3BytesHomogeneousUint8x10_a8.a0;
-  result += passStruct3BytesHomogeneousUint8x10_a8.a1;
-  result += passStruct3BytesHomogeneousUint8x10_a8.a2;
-  result += passStruct3BytesHomogeneousUint8x10_a9.a0;
-  result += passStruct3BytesHomogeneousUint8x10_a9.a1;
-  result += passStruct3BytesHomogeneousUint8x10_a9.a2;
-
-  passStruct3BytesHomogeneousUint8x10Result = result;
-
-  return result;
-}
-
-/// Not a multiple of word size, not a power of two.
-/// 10 struct arguments will exhaust available registers.
-int passStruct3BytesHomogeneousUint8x10(
-    Struct3BytesHomogeneousUint8 a0,
-    Struct3BytesHomogeneousUint8 a1,
-    Struct3BytesHomogeneousUint8 a2,
-    Struct3BytesHomogeneousUint8 a3,
-    Struct3BytesHomogeneousUint8 a4,
-    Struct3BytesHomogeneousUint8 a5,
-    Struct3BytesHomogeneousUint8 a6,
-    Struct3BytesHomogeneousUint8 a7,
-    Struct3BytesHomogeneousUint8 a8,
-    Struct3BytesHomogeneousUint8 a9) {
-  print(
-      "passStruct3BytesHomogeneousUint8x10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct3BytesHomogeneousUint8x10 throwing on purpose!");
-  }
-
-  passStruct3BytesHomogeneousUint8x10_a0 = a0;
-  passStruct3BytesHomogeneousUint8x10_a1 = a1;
-  passStruct3BytesHomogeneousUint8x10_a2 = a2;
-  passStruct3BytesHomogeneousUint8x10_a3 = a3;
-  passStruct3BytesHomogeneousUint8x10_a4 = a4;
-  passStruct3BytesHomogeneousUint8x10_a5 = a5;
-  passStruct3BytesHomogeneousUint8x10_a6 = a6;
-  passStruct3BytesHomogeneousUint8x10_a7 = a7;
-  passStruct3BytesHomogeneousUint8x10_a8 = a8;
-  passStruct3BytesHomogeneousUint8x10_a9 = a9;
-
-  final result = passStruct3BytesHomogeneousUint8x10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct3BytesHomogeneousUint8x10AfterCallback() {
-  final result = passStruct3BytesHomogeneousUint8x10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(465, result);
-}
-
-typedef PassStruct3BytesInt2ByteAlignedx10Type = Int64 Function(
-    Struct3BytesInt2ByteAligned,
-    Struct3BytesInt2ByteAligned,
-    Struct3BytesInt2ByteAligned,
-    Struct3BytesInt2ByteAligned,
-    Struct3BytesInt2ByteAligned,
-    Struct3BytesInt2ByteAligned,
-    Struct3BytesInt2ByteAligned,
-    Struct3BytesInt2ByteAligned,
-    Struct3BytesInt2ByteAligned,
-    Struct3BytesInt2ByteAligned);
-
-// Global variables to be able to test inputs after callback returned.
-Struct3BytesInt2ByteAligned passStruct3BytesInt2ByteAlignedx10_a0 =
-    Pointer<Struct3BytesInt2ByteAligned>.fromAddress(0).ref;
-Struct3BytesInt2ByteAligned passStruct3BytesInt2ByteAlignedx10_a1 =
-    Pointer<Struct3BytesInt2ByteAligned>.fromAddress(0).ref;
-Struct3BytesInt2ByteAligned passStruct3BytesInt2ByteAlignedx10_a2 =
-    Pointer<Struct3BytesInt2ByteAligned>.fromAddress(0).ref;
-Struct3BytesInt2ByteAligned passStruct3BytesInt2ByteAlignedx10_a3 =
-    Pointer<Struct3BytesInt2ByteAligned>.fromAddress(0).ref;
-Struct3BytesInt2ByteAligned passStruct3BytesInt2ByteAlignedx10_a4 =
-    Pointer<Struct3BytesInt2ByteAligned>.fromAddress(0).ref;
-Struct3BytesInt2ByteAligned passStruct3BytesInt2ByteAlignedx10_a5 =
-    Pointer<Struct3BytesInt2ByteAligned>.fromAddress(0).ref;
-Struct3BytesInt2ByteAligned passStruct3BytesInt2ByteAlignedx10_a6 =
-    Pointer<Struct3BytesInt2ByteAligned>.fromAddress(0).ref;
-Struct3BytesInt2ByteAligned passStruct3BytesInt2ByteAlignedx10_a7 =
-    Pointer<Struct3BytesInt2ByteAligned>.fromAddress(0).ref;
-Struct3BytesInt2ByteAligned passStruct3BytesInt2ByteAlignedx10_a8 =
-    Pointer<Struct3BytesInt2ByteAligned>.fromAddress(0).ref;
-Struct3BytesInt2ByteAligned passStruct3BytesInt2ByteAlignedx10_a9 =
-    Pointer<Struct3BytesInt2ByteAligned>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStruct3BytesInt2ByteAlignedx10Result = 0;
-
-int passStruct3BytesInt2ByteAlignedx10CalculateResult() {
-  int result = 0;
-
-  result += passStruct3BytesInt2ByteAlignedx10_a0.a0;
-  result += passStruct3BytesInt2ByteAlignedx10_a0.a1;
-  result += passStruct3BytesInt2ByteAlignedx10_a1.a0;
-  result += passStruct3BytesInt2ByteAlignedx10_a1.a1;
-  result += passStruct3BytesInt2ByteAlignedx10_a2.a0;
-  result += passStruct3BytesInt2ByteAlignedx10_a2.a1;
-  result += passStruct3BytesInt2ByteAlignedx10_a3.a0;
-  result += passStruct3BytesInt2ByteAlignedx10_a3.a1;
-  result += passStruct3BytesInt2ByteAlignedx10_a4.a0;
-  result += passStruct3BytesInt2ByteAlignedx10_a4.a1;
-  result += passStruct3BytesInt2ByteAlignedx10_a5.a0;
-  result += passStruct3BytesInt2ByteAlignedx10_a5.a1;
-  result += passStruct3BytesInt2ByteAlignedx10_a6.a0;
-  result += passStruct3BytesInt2ByteAlignedx10_a6.a1;
-  result += passStruct3BytesInt2ByteAlignedx10_a7.a0;
-  result += passStruct3BytesInt2ByteAlignedx10_a7.a1;
-  result += passStruct3BytesInt2ByteAlignedx10_a8.a0;
-  result += passStruct3BytesInt2ByteAlignedx10_a8.a1;
-  result += passStruct3BytesInt2ByteAlignedx10_a9.a0;
-  result += passStruct3BytesInt2ByteAlignedx10_a9.a1;
-
-  passStruct3BytesInt2ByteAlignedx10Result = result;
-
-  return result;
-}
-
-/// Not a multiple of word size, not a power of two.
-/// With alignment rules taken into account size is 4 bytes.
-/// 10 struct arguments will exhaust available registers.
-int passStruct3BytesInt2ByteAlignedx10(
-    Struct3BytesInt2ByteAligned a0,
-    Struct3BytesInt2ByteAligned a1,
-    Struct3BytesInt2ByteAligned a2,
-    Struct3BytesInt2ByteAligned a3,
-    Struct3BytesInt2ByteAligned a4,
-    Struct3BytesInt2ByteAligned a5,
-    Struct3BytesInt2ByteAligned a6,
-    Struct3BytesInt2ByteAligned a7,
-    Struct3BytesInt2ByteAligned a8,
-    Struct3BytesInt2ByteAligned a9) {
-  print(
-      "passStruct3BytesInt2ByteAlignedx10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct3BytesInt2ByteAlignedx10 throwing on purpose!");
-  }
-
-  passStruct3BytesInt2ByteAlignedx10_a0 = a0;
-  passStruct3BytesInt2ByteAlignedx10_a1 = a1;
-  passStruct3BytesInt2ByteAlignedx10_a2 = a2;
-  passStruct3BytesInt2ByteAlignedx10_a3 = a3;
-  passStruct3BytesInt2ByteAlignedx10_a4 = a4;
-  passStruct3BytesInt2ByteAlignedx10_a5 = a5;
-  passStruct3BytesInt2ByteAlignedx10_a6 = a6;
-  passStruct3BytesInt2ByteAlignedx10_a7 = a7;
-  passStruct3BytesInt2ByteAlignedx10_a8 = a8;
-  passStruct3BytesInt2ByteAlignedx10_a9 = a9;
-
-  final result = passStruct3BytesInt2ByteAlignedx10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct3BytesInt2ByteAlignedx10AfterCallback() {
-  final result = passStruct3BytesInt2ByteAlignedx10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(10, result);
-}
-
-typedef PassStruct4BytesHomogeneousInt16x10Type = Int64 Function(
-    Struct4BytesHomogeneousInt16,
-    Struct4BytesHomogeneousInt16,
-    Struct4BytesHomogeneousInt16,
-    Struct4BytesHomogeneousInt16,
-    Struct4BytesHomogeneousInt16,
-    Struct4BytesHomogeneousInt16,
-    Struct4BytesHomogeneousInt16,
-    Struct4BytesHomogeneousInt16,
-    Struct4BytesHomogeneousInt16,
-    Struct4BytesHomogeneousInt16);
-
-// Global variables to be able to test inputs after callback returned.
-Struct4BytesHomogeneousInt16 passStruct4BytesHomogeneousInt16x10_a0 =
-    Pointer<Struct4BytesHomogeneousInt16>.fromAddress(0).ref;
-Struct4BytesHomogeneousInt16 passStruct4BytesHomogeneousInt16x10_a1 =
-    Pointer<Struct4BytesHomogeneousInt16>.fromAddress(0).ref;
-Struct4BytesHomogeneousInt16 passStruct4BytesHomogeneousInt16x10_a2 =
-    Pointer<Struct4BytesHomogeneousInt16>.fromAddress(0).ref;
-Struct4BytesHomogeneousInt16 passStruct4BytesHomogeneousInt16x10_a3 =
-    Pointer<Struct4BytesHomogeneousInt16>.fromAddress(0).ref;
-Struct4BytesHomogeneousInt16 passStruct4BytesHomogeneousInt16x10_a4 =
-    Pointer<Struct4BytesHomogeneousInt16>.fromAddress(0).ref;
-Struct4BytesHomogeneousInt16 passStruct4BytesHomogeneousInt16x10_a5 =
-    Pointer<Struct4BytesHomogeneousInt16>.fromAddress(0).ref;
-Struct4BytesHomogeneousInt16 passStruct4BytesHomogeneousInt16x10_a6 =
-    Pointer<Struct4BytesHomogeneousInt16>.fromAddress(0).ref;
-Struct4BytesHomogeneousInt16 passStruct4BytesHomogeneousInt16x10_a7 =
-    Pointer<Struct4BytesHomogeneousInt16>.fromAddress(0).ref;
-Struct4BytesHomogeneousInt16 passStruct4BytesHomogeneousInt16x10_a8 =
-    Pointer<Struct4BytesHomogeneousInt16>.fromAddress(0).ref;
-Struct4BytesHomogeneousInt16 passStruct4BytesHomogeneousInt16x10_a9 =
-    Pointer<Struct4BytesHomogeneousInt16>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStruct4BytesHomogeneousInt16x10Result = 0;
-
-int passStruct4BytesHomogeneousInt16x10CalculateResult() {
-  int result = 0;
-
-  result += passStruct4BytesHomogeneousInt16x10_a0.a0;
-  result += passStruct4BytesHomogeneousInt16x10_a0.a1;
-  result += passStruct4BytesHomogeneousInt16x10_a1.a0;
-  result += passStruct4BytesHomogeneousInt16x10_a1.a1;
-  result += passStruct4BytesHomogeneousInt16x10_a2.a0;
-  result += passStruct4BytesHomogeneousInt16x10_a2.a1;
-  result += passStruct4BytesHomogeneousInt16x10_a3.a0;
-  result += passStruct4BytesHomogeneousInt16x10_a3.a1;
-  result += passStruct4BytesHomogeneousInt16x10_a4.a0;
-  result += passStruct4BytesHomogeneousInt16x10_a4.a1;
-  result += passStruct4BytesHomogeneousInt16x10_a5.a0;
-  result += passStruct4BytesHomogeneousInt16x10_a5.a1;
-  result += passStruct4BytesHomogeneousInt16x10_a6.a0;
-  result += passStruct4BytesHomogeneousInt16x10_a6.a1;
-  result += passStruct4BytesHomogeneousInt16x10_a7.a0;
-  result += passStruct4BytesHomogeneousInt16x10_a7.a1;
-  result += passStruct4BytesHomogeneousInt16x10_a8.a0;
-  result += passStruct4BytesHomogeneousInt16x10_a8.a1;
-  result += passStruct4BytesHomogeneousInt16x10_a9.a0;
-  result += passStruct4BytesHomogeneousInt16x10_a9.a1;
-
-  passStruct4BytesHomogeneousInt16x10Result = result;
-
-  return result;
-}
-
-/// Exactly word size on 32-bit architectures.
-/// 10 struct arguments will exhaust available registers.
-int passStruct4BytesHomogeneousInt16x10(
-    Struct4BytesHomogeneousInt16 a0,
-    Struct4BytesHomogeneousInt16 a1,
-    Struct4BytesHomogeneousInt16 a2,
-    Struct4BytesHomogeneousInt16 a3,
-    Struct4BytesHomogeneousInt16 a4,
-    Struct4BytesHomogeneousInt16 a5,
-    Struct4BytesHomogeneousInt16 a6,
-    Struct4BytesHomogeneousInt16 a7,
-    Struct4BytesHomogeneousInt16 a8,
-    Struct4BytesHomogeneousInt16 a9) {
-  print(
-      "passStruct4BytesHomogeneousInt16x10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct4BytesHomogeneousInt16x10 throwing on purpose!");
-  }
-
-  passStruct4BytesHomogeneousInt16x10_a0 = a0;
-  passStruct4BytesHomogeneousInt16x10_a1 = a1;
-  passStruct4BytesHomogeneousInt16x10_a2 = a2;
-  passStruct4BytesHomogeneousInt16x10_a3 = a3;
-  passStruct4BytesHomogeneousInt16x10_a4 = a4;
-  passStruct4BytesHomogeneousInt16x10_a5 = a5;
-  passStruct4BytesHomogeneousInt16x10_a6 = a6;
-  passStruct4BytesHomogeneousInt16x10_a7 = a7;
-  passStruct4BytesHomogeneousInt16x10_a8 = a8;
-  passStruct4BytesHomogeneousInt16x10_a9 = a9;
-
-  final result = passStruct4BytesHomogeneousInt16x10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct4BytesHomogeneousInt16x10AfterCallback() {
-  final result = passStruct4BytesHomogeneousInt16x10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(10, result);
-}
-
-typedef PassStruct7BytesHomogeneousUint8x10Type = Int64 Function(
-    Struct7BytesHomogeneousUint8,
-    Struct7BytesHomogeneousUint8,
-    Struct7BytesHomogeneousUint8,
-    Struct7BytesHomogeneousUint8,
-    Struct7BytesHomogeneousUint8,
-    Struct7BytesHomogeneousUint8,
-    Struct7BytesHomogeneousUint8,
-    Struct7BytesHomogeneousUint8,
-    Struct7BytesHomogeneousUint8,
-    Struct7BytesHomogeneousUint8);
-
-// Global variables to be able to test inputs after callback returned.
-Struct7BytesHomogeneousUint8 passStruct7BytesHomogeneousUint8x10_a0 =
-    Pointer<Struct7BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct7BytesHomogeneousUint8 passStruct7BytesHomogeneousUint8x10_a1 =
-    Pointer<Struct7BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct7BytesHomogeneousUint8 passStruct7BytesHomogeneousUint8x10_a2 =
-    Pointer<Struct7BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct7BytesHomogeneousUint8 passStruct7BytesHomogeneousUint8x10_a3 =
-    Pointer<Struct7BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct7BytesHomogeneousUint8 passStruct7BytesHomogeneousUint8x10_a4 =
-    Pointer<Struct7BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct7BytesHomogeneousUint8 passStruct7BytesHomogeneousUint8x10_a5 =
-    Pointer<Struct7BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct7BytesHomogeneousUint8 passStruct7BytesHomogeneousUint8x10_a6 =
-    Pointer<Struct7BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct7BytesHomogeneousUint8 passStruct7BytesHomogeneousUint8x10_a7 =
-    Pointer<Struct7BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct7BytesHomogeneousUint8 passStruct7BytesHomogeneousUint8x10_a8 =
-    Pointer<Struct7BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct7BytesHomogeneousUint8 passStruct7BytesHomogeneousUint8x10_a9 =
-    Pointer<Struct7BytesHomogeneousUint8>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStruct7BytesHomogeneousUint8x10Result = 0;
-
-int passStruct7BytesHomogeneousUint8x10CalculateResult() {
-  int result = 0;
-
-  result += passStruct7BytesHomogeneousUint8x10_a0.a0;
-  result += passStruct7BytesHomogeneousUint8x10_a0.a1;
-  result += passStruct7BytesHomogeneousUint8x10_a0.a2;
-  result += passStruct7BytesHomogeneousUint8x10_a0.a3;
-  result += passStruct7BytesHomogeneousUint8x10_a0.a4;
-  result += passStruct7BytesHomogeneousUint8x10_a0.a5;
-  result += passStruct7BytesHomogeneousUint8x10_a0.a6;
-  result += passStruct7BytesHomogeneousUint8x10_a1.a0;
-  result += passStruct7BytesHomogeneousUint8x10_a1.a1;
-  result += passStruct7BytesHomogeneousUint8x10_a1.a2;
-  result += passStruct7BytesHomogeneousUint8x10_a1.a3;
-  result += passStruct7BytesHomogeneousUint8x10_a1.a4;
-  result += passStruct7BytesHomogeneousUint8x10_a1.a5;
-  result += passStruct7BytesHomogeneousUint8x10_a1.a6;
-  result += passStruct7BytesHomogeneousUint8x10_a2.a0;
-  result += passStruct7BytesHomogeneousUint8x10_a2.a1;
-  result += passStruct7BytesHomogeneousUint8x10_a2.a2;
-  result += passStruct7BytesHomogeneousUint8x10_a2.a3;
-  result += passStruct7BytesHomogeneousUint8x10_a2.a4;
-  result += passStruct7BytesHomogeneousUint8x10_a2.a5;
-  result += passStruct7BytesHomogeneousUint8x10_a2.a6;
-  result += passStruct7BytesHomogeneousUint8x10_a3.a0;
-  result += passStruct7BytesHomogeneousUint8x10_a3.a1;
-  result += passStruct7BytesHomogeneousUint8x10_a3.a2;
-  result += passStruct7BytesHomogeneousUint8x10_a3.a3;
-  result += passStruct7BytesHomogeneousUint8x10_a3.a4;
-  result += passStruct7BytesHomogeneousUint8x10_a3.a5;
-  result += passStruct7BytesHomogeneousUint8x10_a3.a6;
-  result += passStruct7BytesHomogeneousUint8x10_a4.a0;
-  result += passStruct7BytesHomogeneousUint8x10_a4.a1;
-  result += passStruct7BytesHomogeneousUint8x10_a4.a2;
-  result += passStruct7BytesHomogeneousUint8x10_a4.a3;
-  result += passStruct7BytesHomogeneousUint8x10_a4.a4;
-  result += passStruct7BytesHomogeneousUint8x10_a4.a5;
-  result += passStruct7BytesHomogeneousUint8x10_a4.a6;
-  result += passStruct7BytesHomogeneousUint8x10_a5.a0;
-  result += passStruct7BytesHomogeneousUint8x10_a5.a1;
-  result += passStruct7BytesHomogeneousUint8x10_a5.a2;
-  result += passStruct7BytesHomogeneousUint8x10_a5.a3;
-  result += passStruct7BytesHomogeneousUint8x10_a5.a4;
-  result += passStruct7BytesHomogeneousUint8x10_a5.a5;
-  result += passStruct7BytesHomogeneousUint8x10_a5.a6;
-  result += passStruct7BytesHomogeneousUint8x10_a6.a0;
-  result += passStruct7BytesHomogeneousUint8x10_a6.a1;
-  result += passStruct7BytesHomogeneousUint8x10_a6.a2;
-  result += passStruct7BytesHomogeneousUint8x10_a6.a3;
-  result += passStruct7BytesHomogeneousUint8x10_a6.a4;
-  result += passStruct7BytesHomogeneousUint8x10_a6.a5;
-  result += passStruct7BytesHomogeneousUint8x10_a6.a6;
-  result += passStruct7BytesHomogeneousUint8x10_a7.a0;
-  result += passStruct7BytesHomogeneousUint8x10_a7.a1;
-  result += passStruct7BytesHomogeneousUint8x10_a7.a2;
-  result += passStruct7BytesHomogeneousUint8x10_a7.a3;
-  result += passStruct7BytesHomogeneousUint8x10_a7.a4;
-  result += passStruct7BytesHomogeneousUint8x10_a7.a5;
-  result += passStruct7BytesHomogeneousUint8x10_a7.a6;
-  result += passStruct7BytesHomogeneousUint8x10_a8.a0;
-  result += passStruct7BytesHomogeneousUint8x10_a8.a1;
-  result += passStruct7BytesHomogeneousUint8x10_a8.a2;
-  result += passStruct7BytesHomogeneousUint8x10_a8.a3;
-  result += passStruct7BytesHomogeneousUint8x10_a8.a4;
-  result += passStruct7BytesHomogeneousUint8x10_a8.a5;
-  result += passStruct7BytesHomogeneousUint8x10_a8.a6;
-  result += passStruct7BytesHomogeneousUint8x10_a9.a0;
-  result += passStruct7BytesHomogeneousUint8x10_a9.a1;
-  result += passStruct7BytesHomogeneousUint8x10_a9.a2;
-  result += passStruct7BytesHomogeneousUint8x10_a9.a3;
-  result += passStruct7BytesHomogeneousUint8x10_a9.a4;
-  result += passStruct7BytesHomogeneousUint8x10_a9.a5;
-  result += passStruct7BytesHomogeneousUint8x10_a9.a6;
-
-  passStruct7BytesHomogeneousUint8x10Result = result;
-
-  return result;
-}
-
-/// Sub word size on 64 bit architectures.
-/// 10 struct arguments will exhaust available registers.
-int passStruct7BytesHomogeneousUint8x10(
-    Struct7BytesHomogeneousUint8 a0,
-    Struct7BytesHomogeneousUint8 a1,
-    Struct7BytesHomogeneousUint8 a2,
-    Struct7BytesHomogeneousUint8 a3,
-    Struct7BytesHomogeneousUint8 a4,
-    Struct7BytesHomogeneousUint8 a5,
-    Struct7BytesHomogeneousUint8 a6,
-    Struct7BytesHomogeneousUint8 a7,
-    Struct7BytesHomogeneousUint8 a8,
-    Struct7BytesHomogeneousUint8 a9) {
-  print(
-      "passStruct7BytesHomogeneousUint8x10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct7BytesHomogeneousUint8x10 throwing on purpose!");
-  }
-
-  passStruct7BytesHomogeneousUint8x10_a0 = a0;
-  passStruct7BytesHomogeneousUint8x10_a1 = a1;
-  passStruct7BytesHomogeneousUint8x10_a2 = a2;
-  passStruct7BytesHomogeneousUint8x10_a3 = a3;
-  passStruct7BytesHomogeneousUint8x10_a4 = a4;
-  passStruct7BytesHomogeneousUint8x10_a5 = a5;
-  passStruct7BytesHomogeneousUint8x10_a6 = a6;
-  passStruct7BytesHomogeneousUint8x10_a7 = a7;
-  passStruct7BytesHomogeneousUint8x10_a8 = a8;
-  passStruct7BytesHomogeneousUint8x10_a9 = a9;
-
-  final result = passStruct7BytesHomogeneousUint8x10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct7BytesHomogeneousUint8x10AfterCallback() {
-  final result = passStruct7BytesHomogeneousUint8x10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(2485, result);
-}
-
-typedef PassStruct7BytesInt4ByteAlignedx10Type = Int64 Function(
-    Struct7BytesInt4ByteAligned,
-    Struct7BytesInt4ByteAligned,
-    Struct7BytesInt4ByteAligned,
-    Struct7BytesInt4ByteAligned,
-    Struct7BytesInt4ByteAligned,
-    Struct7BytesInt4ByteAligned,
-    Struct7BytesInt4ByteAligned,
-    Struct7BytesInt4ByteAligned,
-    Struct7BytesInt4ByteAligned,
-    Struct7BytesInt4ByteAligned);
-
-// Global variables to be able to test inputs after callback returned.
-Struct7BytesInt4ByteAligned passStruct7BytesInt4ByteAlignedx10_a0 =
-    Pointer<Struct7BytesInt4ByteAligned>.fromAddress(0).ref;
-Struct7BytesInt4ByteAligned passStruct7BytesInt4ByteAlignedx10_a1 =
-    Pointer<Struct7BytesInt4ByteAligned>.fromAddress(0).ref;
-Struct7BytesInt4ByteAligned passStruct7BytesInt4ByteAlignedx10_a2 =
-    Pointer<Struct7BytesInt4ByteAligned>.fromAddress(0).ref;
-Struct7BytesInt4ByteAligned passStruct7BytesInt4ByteAlignedx10_a3 =
-    Pointer<Struct7BytesInt4ByteAligned>.fromAddress(0).ref;
-Struct7BytesInt4ByteAligned passStruct7BytesInt4ByteAlignedx10_a4 =
-    Pointer<Struct7BytesInt4ByteAligned>.fromAddress(0).ref;
-Struct7BytesInt4ByteAligned passStruct7BytesInt4ByteAlignedx10_a5 =
-    Pointer<Struct7BytesInt4ByteAligned>.fromAddress(0).ref;
-Struct7BytesInt4ByteAligned passStruct7BytesInt4ByteAlignedx10_a6 =
-    Pointer<Struct7BytesInt4ByteAligned>.fromAddress(0).ref;
-Struct7BytesInt4ByteAligned passStruct7BytesInt4ByteAlignedx10_a7 =
-    Pointer<Struct7BytesInt4ByteAligned>.fromAddress(0).ref;
-Struct7BytesInt4ByteAligned passStruct7BytesInt4ByteAlignedx10_a8 =
-    Pointer<Struct7BytesInt4ByteAligned>.fromAddress(0).ref;
-Struct7BytesInt4ByteAligned passStruct7BytesInt4ByteAlignedx10_a9 =
-    Pointer<Struct7BytesInt4ByteAligned>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStruct7BytesInt4ByteAlignedx10Result = 0;
-
-int passStruct7BytesInt4ByteAlignedx10CalculateResult() {
-  int result = 0;
-
-  result += passStruct7BytesInt4ByteAlignedx10_a0.a0;
-  result += passStruct7BytesInt4ByteAlignedx10_a0.a1;
-  result += passStruct7BytesInt4ByteAlignedx10_a0.a2;
-  result += passStruct7BytesInt4ByteAlignedx10_a1.a0;
-  result += passStruct7BytesInt4ByteAlignedx10_a1.a1;
-  result += passStruct7BytesInt4ByteAlignedx10_a1.a2;
-  result += passStruct7BytesInt4ByteAlignedx10_a2.a0;
-  result += passStruct7BytesInt4ByteAlignedx10_a2.a1;
-  result += passStruct7BytesInt4ByteAlignedx10_a2.a2;
-  result += passStruct7BytesInt4ByteAlignedx10_a3.a0;
-  result += passStruct7BytesInt4ByteAlignedx10_a3.a1;
-  result += passStruct7BytesInt4ByteAlignedx10_a3.a2;
-  result += passStruct7BytesInt4ByteAlignedx10_a4.a0;
-  result += passStruct7BytesInt4ByteAlignedx10_a4.a1;
-  result += passStruct7BytesInt4ByteAlignedx10_a4.a2;
-  result += passStruct7BytesInt4ByteAlignedx10_a5.a0;
-  result += passStruct7BytesInt4ByteAlignedx10_a5.a1;
-  result += passStruct7BytesInt4ByteAlignedx10_a5.a2;
-  result += passStruct7BytesInt4ByteAlignedx10_a6.a0;
-  result += passStruct7BytesInt4ByteAlignedx10_a6.a1;
-  result += passStruct7BytesInt4ByteAlignedx10_a6.a2;
-  result += passStruct7BytesInt4ByteAlignedx10_a7.a0;
-  result += passStruct7BytesInt4ByteAlignedx10_a7.a1;
-  result += passStruct7BytesInt4ByteAlignedx10_a7.a2;
-  result += passStruct7BytesInt4ByteAlignedx10_a8.a0;
-  result += passStruct7BytesInt4ByteAlignedx10_a8.a1;
-  result += passStruct7BytesInt4ByteAlignedx10_a8.a2;
-  result += passStruct7BytesInt4ByteAlignedx10_a9.a0;
-  result += passStruct7BytesInt4ByteAlignedx10_a9.a1;
-  result += passStruct7BytesInt4ByteAlignedx10_a9.a2;
-
-  passStruct7BytesInt4ByteAlignedx10Result = result;
-
-  return result;
-}
-
-/// Sub word size on 64 bit architectures.
-/// With alignment rules taken into account size is 8 bytes.
-/// 10 struct arguments will exhaust available registers.
-int passStruct7BytesInt4ByteAlignedx10(
-    Struct7BytesInt4ByteAligned a0,
-    Struct7BytesInt4ByteAligned a1,
-    Struct7BytesInt4ByteAligned a2,
-    Struct7BytesInt4ByteAligned a3,
-    Struct7BytesInt4ByteAligned a4,
-    Struct7BytesInt4ByteAligned a5,
-    Struct7BytesInt4ByteAligned a6,
-    Struct7BytesInt4ByteAligned a7,
-    Struct7BytesInt4ByteAligned a8,
-    Struct7BytesInt4ByteAligned a9) {
-  print(
-      "passStruct7BytesInt4ByteAlignedx10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct7BytesInt4ByteAlignedx10 throwing on purpose!");
-  }
-
-  passStruct7BytesInt4ByteAlignedx10_a0 = a0;
-  passStruct7BytesInt4ByteAlignedx10_a1 = a1;
-  passStruct7BytesInt4ByteAlignedx10_a2 = a2;
-  passStruct7BytesInt4ByteAlignedx10_a3 = a3;
-  passStruct7BytesInt4ByteAlignedx10_a4 = a4;
-  passStruct7BytesInt4ByteAlignedx10_a5 = a5;
-  passStruct7BytesInt4ByteAlignedx10_a6 = a6;
-  passStruct7BytesInt4ByteAlignedx10_a7 = a7;
-  passStruct7BytesInt4ByteAlignedx10_a8 = a8;
-  passStruct7BytesInt4ByteAlignedx10_a9 = a9;
-
-  final result = passStruct7BytesInt4ByteAlignedx10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct7BytesInt4ByteAlignedx10AfterCallback() {
-  final result = passStruct7BytesInt4ByteAlignedx10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(15, result);
-}
-
-typedef PassStruct8BytesIntx10Type = Int64 Function(
-    Struct8BytesInt,
-    Struct8BytesInt,
-    Struct8BytesInt,
-    Struct8BytesInt,
-    Struct8BytesInt,
-    Struct8BytesInt,
-    Struct8BytesInt,
-    Struct8BytesInt,
-    Struct8BytesInt,
-    Struct8BytesInt);
-
-// Global variables to be able to test inputs after callback returned.
-Struct8BytesInt passStruct8BytesIntx10_a0 =
-    Pointer<Struct8BytesInt>.fromAddress(0).ref;
-Struct8BytesInt passStruct8BytesIntx10_a1 =
-    Pointer<Struct8BytesInt>.fromAddress(0).ref;
-Struct8BytesInt passStruct8BytesIntx10_a2 =
-    Pointer<Struct8BytesInt>.fromAddress(0).ref;
-Struct8BytesInt passStruct8BytesIntx10_a3 =
-    Pointer<Struct8BytesInt>.fromAddress(0).ref;
-Struct8BytesInt passStruct8BytesIntx10_a4 =
-    Pointer<Struct8BytesInt>.fromAddress(0).ref;
-Struct8BytesInt passStruct8BytesIntx10_a5 =
-    Pointer<Struct8BytesInt>.fromAddress(0).ref;
-Struct8BytesInt passStruct8BytesIntx10_a6 =
-    Pointer<Struct8BytesInt>.fromAddress(0).ref;
-Struct8BytesInt passStruct8BytesIntx10_a7 =
-    Pointer<Struct8BytesInt>.fromAddress(0).ref;
-Struct8BytesInt passStruct8BytesIntx10_a8 =
-    Pointer<Struct8BytesInt>.fromAddress(0).ref;
-Struct8BytesInt passStruct8BytesIntx10_a9 =
-    Pointer<Struct8BytesInt>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStruct8BytesIntx10Result = 0;
-
-int passStruct8BytesIntx10CalculateResult() {
-  int result = 0;
-
-  result += passStruct8BytesIntx10_a0.a0;
-  result += passStruct8BytesIntx10_a0.a1;
-  result += passStruct8BytesIntx10_a0.a2;
-  result += passStruct8BytesIntx10_a1.a0;
-  result += passStruct8BytesIntx10_a1.a1;
-  result += passStruct8BytesIntx10_a1.a2;
-  result += passStruct8BytesIntx10_a2.a0;
-  result += passStruct8BytesIntx10_a2.a1;
-  result += passStruct8BytesIntx10_a2.a2;
-  result += passStruct8BytesIntx10_a3.a0;
-  result += passStruct8BytesIntx10_a3.a1;
-  result += passStruct8BytesIntx10_a3.a2;
-  result += passStruct8BytesIntx10_a4.a0;
-  result += passStruct8BytesIntx10_a4.a1;
-  result += passStruct8BytesIntx10_a4.a2;
-  result += passStruct8BytesIntx10_a5.a0;
-  result += passStruct8BytesIntx10_a5.a1;
-  result += passStruct8BytesIntx10_a5.a2;
-  result += passStruct8BytesIntx10_a6.a0;
-  result += passStruct8BytesIntx10_a6.a1;
-  result += passStruct8BytesIntx10_a6.a2;
-  result += passStruct8BytesIntx10_a7.a0;
-  result += passStruct8BytesIntx10_a7.a1;
-  result += passStruct8BytesIntx10_a7.a2;
-  result += passStruct8BytesIntx10_a8.a0;
-  result += passStruct8BytesIntx10_a8.a1;
-  result += passStruct8BytesIntx10_a8.a2;
-  result += passStruct8BytesIntx10_a9.a0;
-  result += passStruct8BytesIntx10_a9.a1;
-  result += passStruct8BytesIntx10_a9.a2;
-
-  passStruct8BytesIntx10Result = result;
-
-  return result;
-}
-
-/// Exactly word size struct on 64bit architectures.
-/// 10 struct arguments will exhaust available registers.
-int passStruct8BytesIntx10(
-    Struct8BytesInt a0,
-    Struct8BytesInt a1,
-    Struct8BytesInt a2,
-    Struct8BytesInt a3,
-    Struct8BytesInt a4,
-    Struct8BytesInt a5,
-    Struct8BytesInt a6,
-    Struct8BytesInt a7,
-    Struct8BytesInt a8,
-    Struct8BytesInt a9) {
-  print(
-      "passStruct8BytesIntx10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct8BytesIntx10 throwing on purpose!");
-  }
-
-  passStruct8BytesIntx10_a0 = a0;
-  passStruct8BytesIntx10_a1 = a1;
-  passStruct8BytesIntx10_a2 = a2;
-  passStruct8BytesIntx10_a3 = a3;
-  passStruct8BytesIntx10_a4 = a4;
-  passStruct8BytesIntx10_a5 = a5;
-  passStruct8BytesIntx10_a6 = a6;
-  passStruct8BytesIntx10_a7 = a7;
-  passStruct8BytesIntx10_a8 = a8;
-  passStruct8BytesIntx10_a9 = a9;
-
-  final result = passStruct8BytesIntx10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct8BytesIntx10AfterCallback() {
-  final result = passStruct8BytesIntx10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(15, result);
-}
-
-typedef PassStruct8BytesHomogeneousFloatx10Type = Float Function(
-    Struct8BytesHomogeneousFloat,
-    Struct8BytesHomogeneousFloat,
-    Struct8BytesHomogeneousFloat,
-    Struct8BytesHomogeneousFloat,
-    Struct8BytesHomogeneousFloat,
-    Struct8BytesHomogeneousFloat,
-    Struct8BytesHomogeneousFloat,
-    Struct8BytesHomogeneousFloat,
-    Struct8BytesHomogeneousFloat,
-    Struct8BytesHomogeneousFloat);
-
-// Global variables to be able to test inputs after callback returned.
-Struct8BytesHomogeneousFloat passStruct8BytesHomogeneousFloatx10_a0 =
-    Pointer<Struct8BytesHomogeneousFloat>.fromAddress(0).ref;
-Struct8BytesHomogeneousFloat passStruct8BytesHomogeneousFloatx10_a1 =
-    Pointer<Struct8BytesHomogeneousFloat>.fromAddress(0).ref;
-Struct8BytesHomogeneousFloat passStruct8BytesHomogeneousFloatx10_a2 =
-    Pointer<Struct8BytesHomogeneousFloat>.fromAddress(0).ref;
-Struct8BytesHomogeneousFloat passStruct8BytesHomogeneousFloatx10_a3 =
-    Pointer<Struct8BytesHomogeneousFloat>.fromAddress(0).ref;
-Struct8BytesHomogeneousFloat passStruct8BytesHomogeneousFloatx10_a4 =
-    Pointer<Struct8BytesHomogeneousFloat>.fromAddress(0).ref;
-Struct8BytesHomogeneousFloat passStruct8BytesHomogeneousFloatx10_a5 =
-    Pointer<Struct8BytesHomogeneousFloat>.fromAddress(0).ref;
-Struct8BytesHomogeneousFloat passStruct8BytesHomogeneousFloatx10_a6 =
-    Pointer<Struct8BytesHomogeneousFloat>.fromAddress(0).ref;
-Struct8BytesHomogeneousFloat passStruct8BytesHomogeneousFloatx10_a7 =
-    Pointer<Struct8BytesHomogeneousFloat>.fromAddress(0).ref;
-Struct8BytesHomogeneousFloat passStruct8BytesHomogeneousFloatx10_a8 =
-    Pointer<Struct8BytesHomogeneousFloat>.fromAddress(0).ref;
-Struct8BytesHomogeneousFloat passStruct8BytesHomogeneousFloatx10_a9 =
-    Pointer<Struct8BytesHomogeneousFloat>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passStruct8BytesHomogeneousFloatx10Result = 0.0;
-
-double passStruct8BytesHomogeneousFloatx10CalculateResult() {
-  double result = 0;
-
-  result += passStruct8BytesHomogeneousFloatx10_a0.a0;
-  result += passStruct8BytesHomogeneousFloatx10_a0.a1;
-  result += passStruct8BytesHomogeneousFloatx10_a1.a0;
-  result += passStruct8BytesHomogeneousFloatx10_a1.a1;
-  result += passStruct8BytesHomogeneousFloatx10_a2.a0;
-  result += passStruct8BytesHomogeneousFloatx10_a2.a1;
-  result += passStruct8BytesHomogeneousFloatx10_a3.a0;
-  result += passStruct8BytesHomogeneousFloatx10_a3.a1;
-  result += passStruct8BytesHomogeneousFloatx10_a4.a0;
-  result += passStruct8BytesHomogeneousFloatx10_a4.a1;
-  result += passStruct8BytesHomogeneousFloatx10_a5.a0;
-  result += passStruct8BytesHomogeneousFloatx10_a5.a1;
-  result += passStruct8BytesHomogeneousFloatx10_a6.a0;
-  result += passStruct8BytesHomogeneousFloatx10_a6.a1;
-  result += passStruct8BytesHomogeneousFloatx10_a7.a0;
-  result += passStruct8BytesHomogeneousFloatx10_a7.a1;
-  result += passStruct8BytesHomogeneousFloatx10_a8.a0;
-  result += passStruct8BytesHomogeneousFloatx10_a8.a1;
-  result += passStruct8BytesHomogeneousFloatx10_a9.a0;
-  result += passStruct8BytesHomogeneousFloatx10_a9.a1;
-
-  passStruct8BytesHomogeneousFloatx10Result = result;
-
-  return result;
-}
-
-/// Arguments passed in FP registers as long as they fit.
-/// 10 struct arguments will exhaust available registers.
-double passStruct8BytesHomogeneousFloatx10(
-    Struct8BytesHomogeneousFloat a0,
-    Struct8BytesHomogeneousFloat a1,
-    Struct8BytesHomogeneousFloat a2,
-    Struct8BytesHomogeneousFloat a3,
-    Struct8BytesHomogeneousFloat a4,
-    Struct8BytesHomogeneousFloat a5,
-    Struct8BytesHomogeneousFloat a6,
-    Struct8BytesHomogeneousFloat a7,
-    Struct8BytesHomogeneousFloat a8,
-    Struct8BytesHomogeneousFloat a9) {
-  print(
-      "passStruct8BytesHomogeneousFloatx10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct8BytesHomogeneousFloatx10 throwing on purpose!");
-  }
-
-  passStruct8BytesHomogeneousFloatx10_a0 = a0;
-  passStruct8BytesHomogeneousFloatx10_a1 = a1;
-  passStruct8BytesHomogeneousFloatx10_a2 = a2;
-  passStruct8BytesHomogeneousFloatx10_a3 = a3;
-  passStruct8BytesHomogeneousFloatx10_a4 = a4;
-  passStruct8BytesHomogeneousFloatx10_a5 = a5;
-  passStruct8BytesHomogeneousFloatx10_a6 = a6;
-  passStruct8BytesHomogeneousFloatx10_a7 = a7;
-  passStruct8BytesHomogeneousFloatx10_a8 = a8;
-  passStruct8BytesHomogeneousFloatx10_a9 = a9;
-
-  final result = passStruct8BytesHomogeneousFloatx10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct8BytesHomogeneousFloatx10AfterCallback() {
-  final result = passStruct8BytesHomogeneousFloatx10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(10.0, result);
-}
-
-typedef PassStruct8BytesMixedx10Type = Float Function(
-    Struct8BytesMixed,
-    Struct8BytesMixed,
-    Struct8BytesMixed,
-    Struct8BytesMixed,
-    Struct8BytesMixed,
-    Struct8BytesMixed,
-    Struct8BytesMixed,
-    Struct8BytesMixed,
-    Struct8BytesMixed,
-    Struct8BytesMixed);
-
-// Global variables to be able to test inputs after callback returned.
-Struct8BytesMixed passStruct8BytesMixedx10_a0 =
-    Pointer<Struct8BytesMixed>.fromAddress(0).ref;
-Struct8BytesMixed passStruct8BytesMixedx10_a1 =
-    Pointer<Struct8BytesMixed>.fromAddress(0).ref;
-Struct8BytesMixed passStruct8BytesMixedx10_a2 =
-    Pointer<Struct8BytesMixed>.fromAddress(0).ref;
-Struct8BytesMixed passStruct8BytesMixedx10_a3 =
-    Pointer<Struct8BytesMixed>.fromAddress(0).ref;
-Struct8BytesMixed passStruct8BytesMixedx10_a4 =
-    Pointer<Struct8BytesMixed>.fromAddress(0).ref;
-Struct8BytesMixed passStruct8BytesMixedx10_a5 =
-    Pointer<Struct8BytesMixed>.fromAddress(0).ref;
-Struct8BytesMixed passStruct8BytesMixedx10_a6 =
-    Pointer<Struct8BytesMixed>.fromAddress(0).ref;
-Struct8BytesMixed passStruct8BytesMixedx10_a7 =
-    Pointer<Struct8BytesMixed>.fromAddress(0).ref;
-Struct8BytesMixed passStruct8BytesMixedx10_a8 =
-    Pointer<Struct8BytesMixed>.fromAddress(0).ref;
-Struct8BytesMixed passStruct8BytesMixedx10_a9 =
-    Pointer<Struct8BytesMixed>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passStruct8BytesMixedx10Result = 0.0;
-
-double passStruct8BytesMixedx10CalculateResult() {
-  double result = 0;
-
-  result += passStruct8BytesMixedx10_a0.a0;
-  result += passStruct8BytesMixedx10_a0.a1;
-  result += passStruct8BytesMixedx10_a0.a2;
-  result += passStruct8BytesMixedx10_a1.a0;
-  result += passStruct8BytesMixedx10_a1.a1;
-  result += passStruct8BytesMixedx10_a1.a2;
-  result += passStruct8BytesMixedx10_a2.a0;
-  result += passStruct8BytesMixedx10_a2.a1;
-  result += passStruct8BytesMixedx10_a2.a2;
-  result += passStruct8BytesMixedx10_a3.a0;
-  result += passStruct8BytesMixedx10_a3.a1;
-  result += passStruct8BytesMixedx10_a3.a2;
-  result += passStruct8BytesMixedx10_a4.a0;
-  result += passStruct8BytesMixedx10_a4.a1;
-  result += passStruct8BytesMixedx10_a4.a2;
-  result += passStruct8BytesMixedx10_a5.a0;
-  result += passStruct8BytesMixedx10_a5.a1;
-  result += passStruct8BytesMixedx10_a5.a2;
-  result += passStruct8BytesMixedx10_a6.a0;
-  result += passStruct8BytesMixedx10_a6.a1;
-  result += passStruct8BytesMixedx10_a6.a2;
-  result += passStruct8BytesMixedx10_a7.a0;
-  result += passStruct8BytesMixedx10_a7.a1;
-  result += passStruct8BytesMixedx10_a7.a2;
-  result += passStruct8BytesMixedx10_a8.a0;
-  result += passStruct8BytesMixedx10_a8.a1;
-  result += passStruct8BytesMixedx10_a8.a2;
-  result += passStruct8BytesMixedx10_a9.a0;
-  result += passStruct8BytesMixedx10_a9.a1;
-  result += passStruct8BytesMixedx10_a9.a2;
-
-  passStruct8BytesMixedx10Result = result;
-
-  return result;
-}
-
-/// On x64, arguments go in int registers because it is not only float.
-/// 10 struct arguments will exhaust available registers.
-double passStruct8BytesMixedx10(
-    Struct8BytesMixed a0,
-    Struct8BytesMixed a1,
-    Struct8BytesMixed a2,
-    Struct8BytesMixed a3,
-    Struct8BytesMixed a4,
-    Struct8BytesMixed a5,
-    Struct8BytesMixed a6,
-    Struct8BytesMixed a7,
-    Struct8BytesMixed a8,
-    Struct8BytesMixed a9) {
-  print(
-      "passStruct8BytesMixedx10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct8BytesMixedx10 throwing on purpose!");
-  }
-
-  passStruct8BytesMixedx10_a0 = a0;
-  passStruct8BytesMixedx10_a1 = a1;
-  passStruct8BytesMixedx10_a2 = a2;
-  passStruct8BytesMixedx10_a3 = a3;
-  passStruct8BytesMixedx10_a4 = a4;
-  passStruct8BytesMixedx10_a5 = a5;
-  passStruct8BytesMixedx10_a6 = a6;
-  passStruct8BytesMixedx10_a7 = a7;
-  passStruct8BytesMixedx10_a8 = a8;
-  passStruct8BytesMixedx10_a9 = a9;
-
-  final result = passStruct8BytesMixedx10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct8BytesMixedx10AfterCallback() {
-  final result = passStruct8BytesMixedx10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(15.0, result);
-}
-
-typedef PassStruct9BytesHomogeneousUint8x10Type = Int64 Function(
-    Struct9BytesHomogeneousUint8,
-    Struct9BytesHomogeneousUint8,
-    Struct9BytesHomogeneousUint8,
-    Struct9BytesHomogeneousUint8,
-    Struct9BytesHomogeneousUint8,
-    Struct9BytesHomogeneousUint8,
-    Struct9BytesHomogeneousUint8,
-    Struct9BytesHomogeneousUint8,
-    Struct9BytesHomogeneousUint8,
-    Struct9BytesHomogeneousUint8);
-
-// Global variables to be able to test inputs after callback returned.
-Struct9BytesHomogeneousUint8 passStruct9BytesHomogeneousUint8x10_a0 =
-    Pointer<Struct9BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct9BytesHomogeneousUint8 passStruct9BytesHomogeneousUint8x10_a1 =
-    Pointer<Struct9BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct9BytesHomogeneousUint8 passStruct9BytesHomogeneousUint8x10_a2 =
-    Pointer<Struct9BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct9BytesHomogeneousUint8 passStruct9BytesHomogeneousUint8x10_a3 =
-    Pointer<Struct9BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct9BytesHomogeneousUint8 passStruct9BytesHomogeneousUint8x10_a4 =
-    Pointer<Struct9BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct9BytesHomogeneousUint8 passStruct9BytesHomogeneousUint8x10_a5 =
-    Pointer<Struct9BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct9BytesHomogeneousUint8 passStruct9BytesHomogeneousUint8x10_a6 =
-    Pointer<Struct9BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct9BytesHomogeneousUint8 passStruct9BytesHomogeneousUint8x10_a7 =
-    Pointer<Struct9BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct9BytesHomogeneousUint8 passStruct9BytesHomogeneousUint8x10_a8 =
-    Pointer<Struct9BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct9BytesHomogeneousUint8 passStruct9BytesHomogeneousUint8x10_a9 =
-    Pointer<Struct9BytesHomogeneousUint8>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStruct9BytesHomogeneousUint8x10Result = 0;
-
-int passStruct9BytesHomogeneousUint8x10CalculateResult() {
-  int result = 0;
-
-  result += passStruct9BytesHomogeneousUint8x10_a0.a0;
-  result += passStruct9BytesHomogeneousUint8x10_a0.a1;
-  result += passStruct9BytesHomogeneousUint8x10_a0.a2;
-  result += passStruct9BytesHomogeneousUint8x10_a0.a3;
-  result += passStruct9BytesHomogeneousUint8x10_a0.a4;
-  result += passStruct9BytesHomogeneousUint8x10_a0.a5;
-  result += passStruct9BytesHomogeneousUint8x10_a0.a6;
-  result += passStruct9BytesHomogeneousUint8x10_a0.a7;
-  result += passStruct9BytesHomogeneousUint8x10_a0.a8;
-  result += passStruct9BytesHomogeneousUint8x10_a1.a0;
-  result += passStruct9BytesHomogeneousUint8x10_a1.a1;
-  result += passStruct9BytesHomogeneousUint8x10_a1.a2;
-  result += passStruct9BytesHomogeneousUint8x10_a1.a3;
-  result += passStruct9BytesHomogeneousUint8x10_a1.a4;
-  result += passStruct9BytesHomogeneousUint8x10_a1.a5;
-  result += passStruct9BytesHomogeneousUint8x10_a1.a6;
-  result += passStruct9BytesHomogeneousUint8x10_a1.a7;
-  result += passStruct9BytesHomogeneousUint8x10_a1.a8;
-  result += passStruct9BytesHomogeneousUint8x10_a2.a0;
-  result += passStruct9BytesHomogeneousUint8x10_a2.a1;
-  result += passStruct9BytesHomogeneousUint8x10_a2.a2;
-  result += passStruct9BytesHomogeneousUint8x10_a2.a3;
-  result += passStruct9BytesHomogeneousUint8x10_a2.a4;
-  result += passStruct9BytesHomogeneousUint8x10_a2.a5;
-  result += passStruct9BytesHomogeneousUint8x10_a2.a6;
-  result += passStruct9BytesHomogeneousUint8x10_a2.a7;
-  result += passStruct9BytesHomogeneousUint8x10_a2.a8;
-  result += passStruct9BytesHomogeneousUint8x10_a3.a0;
-  result += passStruct9BytesHomogeneousUint8x10_a3.a1;
-  result += passStruct9BytesHomogeneousUint8x10_a3.a2;
-  result += passStruct9BytesHomogeneousUint8x10_a3.a3;
-  result += passStruct9BytesHomogeneousUint8x10_a3.a4;
-  result += passStruct9BytesHomogeneousUint8x10_a3.a5;
-  result += passStruct9BytesHomogeneousUint8x10_a3.a6;
-  result += passStruct9BytesHomogeneousUint8x10_a3.a7;
-  result += passStruct9BytesHomogeneousUint8x10_a3.a8;
-  result += passStruct9BytesHomogeneousUint8x10_a4.a0;
-  result += passStruct9BytesHomogeneousUint8x10_a4.a1;
-  result += passStruct9BytesHomogeneousUint8x10_a4.a2;
-  result += passStruct9BytesHomogeneousUint8x10_a4.a3;
-  result += passStruct9BytesHomogeneousUint8x10_a4.a4;
-  result += passStruct9BytesHomogeneousUint8x10_a4.a5;
-  result += passStruct9BytesHomogeneousUint8x10_a4.a6;
-  result += passStruct9BytesHomogeneousUint8x10_a4.a7;
-  result += passStruct9BytesHomogeneousUint8x10_a4.a8;
-  result += passStruct9BytesHomogeneousUint8x10_a5.a0;
-  result += passStruct9BytesHomogeneousUint8x10_a5.a1;
-  result += passStruct9BytesHomogeneousUint8x10_a5.a2;
-  result += passStruct9BytesHomogeneousUint8x10_a5.a3;
-  result += passStruct9BytesHomogeneousUint8x10_a5.a4;
-  result += passStruct9BytesHomogeneousUint8x10_a5.a5;
-  result += passStruct9BytesHomogeneousUint8x10_a5.a6;
-  result += passStruct9BytesHomogeneousUint8x10_a5.a7;
-  result += passStruct9BytesHomogeneousUint8x10_a5.a8;
-  result += passStruct9BytesHomogeneousUint8x10_a6.a0;
-  result += passStruct9BytesHomogeneousUint8x10_a6.a1;
-  result += passStruct9BytesHomogeneousUint8x10_a6.a2;
-  result += passStruct9BytesHomogeneousUint8x10_a6.a3;
-  result += passStruct9BytesHomogeneousUint8x10_a6.a4;
-  result += passStruct9BytesHomogeneousUint8x10_a6.a5;
-  result += passStruct9BytesHomogeneousUint8x10_a6.a6;
-  result += passStruct9BytesHomogeneousUint8x10_a6.a7;
-  result += passStruct9BytesHomogeneousUint8x10_a6.a8;
-  result += passStruct9BytesHomogeneousUint8x10_a7.a0;
-  result += passStruct9BytesHomogeneousUint8x10_a7.a1;
-  result += passStruct9BytesHomogeneousUint8x10_a7.a2;
-  result += passStruct9BytesHomogeneousUint8x10_a7.a3;
-  result += passStruct9BytesHomogeneousUint8x10_a7.a4;
-  result += passStruct9BytesHomogeneousUint8x10_a7.a5;
-  result += passStruct9BytesHomogeneousUint8x10_a7.a6;
-  result += passStruct9BytesHomogeneousUint8x10_a7.a7;
-  result += passStruct9BytesHomogeneousUint8x10_a7.a8;
-  result += passStruct9BytesHomogeneousUint8x10_a8.a0;
-  result += passStruct9BytesHomogeneousUint8x10_a8.a1;
-  result += passStruct9BytesHomogeneousUint8x10_a8.a2;
-  result += passStruct9BytesHomogeneousUint8x10_a8.a3;
-  result += passStruct9BytesHomogeneousUint8x10_a8.a4;
-  result += passStruct9BytesHomogeneousUint8x10_a8.a5;
-  result += passStruct9BytesHomogeneousUint8x10_a8.a6;
-  result += passStruct9BytesHomogeneousUint8x10_a8.a7;
-  result += passStruct9BytesHomogeneousUint8x10_a8.a8;
-  result += passStruct9BytesHomogeneousUint8x10_a9.a0;
-  result += passStruct9BytesHomogeneousUint8x10_a9.a1;
-  result += passStruct9BytesHomogeneousUint8x10_a9.a2;
-  result += passStruct9BytesHomogeneousUint8x10_a9.a3;
-  result += passStruct9BytesHomogeneousUint8x10_a9.a4;
-  result += passStruct9BytesHomogeneousUint8x10_a9.a5;
-  result += passStruct9BytesHomogeneousUint8x10_a9.a6;
-  result += passStruct9BytesHomogeneousUint8x10_a9.a7;
-  result += passStruct9BytesHomogeneousUint8x10_a9.a8;
-
-  passStruct9BytesHomogeneousUint8x10Result = result;
-
-  return result;
-}
-
-/// Argument is a single byte over a multiple of word size.
-/// 10 struct arguments will exhaust available registers.
-/// Struct only has 1-byte aligned fields to test struct alignment itself.
-/// Tests upper bytes in the integer registers that are partly filled.
-/// Tests stack alignment of non word size stack arguments.
-int passStruct9BytesHomogeneousUint8x10(
-    Struct9BytesHomogeneousUint8 a0,
-    Struct9BytesHomogeneousUint8 a1,
-    Struct9BytesHomogeneousUint8 a2,
-    Struct9BytesHomogeneousUint8 a3,
-    Struct9BytesHomogeneousUint8 a4,
-    Struct9BytesHomogeneousUint8 a5,
-    Struct9BytesHomogeneousUint8 a6,
-    Struct9BytesHomogeneousUint8 a7,
-    Struct9BytesHomogeneousUint8 a8,
-    Struct9BytesHomogeneousUint8 a9) {
-  print(
-      "passStruct9BytesHomogeneousUint8x10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct9BytesHomogeneousUint8x10 throwing on purpose!");
-  }
-
-  passStruct9BytesHomogeneousUint8x10_a0 = a0;
-  passStruct9BytesHomogeneousUint8x10_a1 = a1;
-  passStruct9BytesHomogeneousUint8x10_a2 = a2;
-  passStruct9BytesHomogeneousUint8x10_a3 = a3;
-  passStruct9BytesHomogeneousUint8x10_a4 = a4;
-  passStruct9BytesHomogeneousUint8x10_a5 = a5;
-  passStruct9BytesHomogeneousUint8x10_a6 = a6;
-  passStruct9BytesHomogeneousUint8x10_a7 = a7;
-  passStruct9BytesHomogeneousUint8x10_a8 = a8;
-  passStruct9BytesHomogeneousUint8x10_a9 = a9;
-
-  final result = passStruct9BytesHomogeneousUint8x10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct9BytesHomogeneousUint8x10AfterCallback() {
-  final result = passStruct9BytesHomogeneousUint8x10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(4095, result);
-}
-
-typedef PassStruct9BytesInt4Or8ByteAlignedx10Type = Int64 Function(
-    Struct9BytesInt4Or8ByteAligned,
-    Struct9BytesInt4Or8ByteAligned,
-    Struct9BytesInt4Or8ByteAligned,
-    Struct9BytesInt4Or8ByteAligned,
-    Struct9BytesInt4Or8ByteAligned,
-    Struct9BytesInt4Or8ByteAligned,
-    Struct9BytesInt4Or8ByteAligned,
-    Struct9BytesInt4Or8ByteAligned,
-    Struct9BytesInt4Or8ByteAligned,
-    Struct9BytesInt4Or8ByteAligned);
-
-// Global variables to be able to test inputs after callback returned.
-Struct9BytesInt4Or8ByteAligned passStruct9BytesInt4Or8ByteAlignedx10_a0 =
-    Pointer<Struct9BytesInt4Or8ByteAligned>.fromAddress(0).ref;
-Struct9BytesInt4Or8ByteAligned passStruct9BytesInt4Or8ByteAlignedx10_a1 =
-    Pointer<Struct9BytesInt4Or8ByteAligned>.fromAddress(0).ref;
-Struct9BytesInt4Or8ByteAligned passStruct9BytesInt4Or8ByteAlignedx10_a2 =
-    Pointer<Struct9BytesInt4Or8ByteAligned>.fromAddress(0).ref;
-Struct9BytesInt4Or8ByteAligned passStruct9BytesInt4Or8ByteAlignedx10_a3 =
-    Pointer<Struct9BytesInt4Or8ByteAligned>.fromAddress(0).ref;
-Struct9BytesInt4Or8ByteAligned passStruct9BytesInt4Or8ByteAlignedx10_a4 =
-    Pointer<Struct9BytesInt4Or8ByteAligned>.fromAddress(0).ref;
-Struct9BytesInt4Or8ByteAligned passStruct9BytesInt4Or8ByteAlignedx10_a5 =
-    Pointer<Struct9BytesInt4Or8ByteAligned>.fromAddress(0).ref;
-Struct9BytesInt4Or8ByteAligned passStruct9BytesInt4Or8ByteAlignedx10_a6 =
-    Pointer<Struct9BytesInt4Or8ByteAligned>.fromAddress(0).ref;
-Struct9BytesInt4Or8ByteAligned passStruct9BytesInt4Or8ByteAlignedx10_a7 =
-    Pointer<Struct9BytesInt4Or8ByteAligned>.fromAddress(0).ref;
-Struct9BytesInt4Or8ByteAligned passStruct9BytesInt4Or8ByteAlignedx10_a8 =
-    Pointer<Struct9BytesInt4Or8ByteAligned>.fromAddress(0).ref;
-Struct9BytesInt4Or8ByteAligned passStruct9BytesInt4Or8ByteAlignedx10_a9 =
-    Pointer<Struct9BytesInt4Or8ByteAligned>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStruct9BytesInt4Or8ByteAlignedx10Result = 0;
-
-int passStruct9BytesInt4Or8ByteAlignedx10CalculateResult() {
-  int result = 0;
-
-  result += passStruct9BytesInt4Or8ByteAlignedx10_a0.a0;
-  result += passStruct9BytesInt4Or8ByteAlignedx10_a0.a1;
-  result += passStruct9BytesInt4Or8ByteAlignedx10_a1.a0;
-  result += passStruct9BytesInt4Or8ByteAlignedx10_a1.a1;
-  result += passStruct9BytesInt4Or8ByteAlignedx10_a2.a0;
-  result += passStruct9BytesInt4Or8ByteAlignedx10_a2.a1;
-  result += passStruct9BytesInt4Or8ByteAlignedx10_a3.a0;
-  result += passStruct9BytesInt4Or8ByteAlignedx10_a3.a1;
-  result += passStruct9BytesInt4Or8ByteAlignedx10_a4.a0;
-  result += passStruct9BytesInt4Or8ByteAlignedx10_a4.a1;
-  result += passStruct9BytesInt4Or8ByteAlignedx10_a5.a0;
-  result += passStruct9BytesInt4Or8ByteAlignedx10_a5.a1;
-  result += passStruct9BytesInt4Or8ByteAlignedx10_a6.a0;
-  result += passStruct9BytesInt4Or8ByteAlignedx10_a6.a1;
-  result += passStruct9BytesInt4Or8ByteAlignedx10_a7.a0;
-  result += passStruct9BytesInt4Or8ByteAlignedx10_a7.a1;
-  result += passStruct9BytesInt4Or8ByteAlignedx10_a8.a0;
-  result += passStruct9BytesInt4Or8ByteAlignedx10_a8.a1;
-  result += passStruct9BytesInt4Or8ByteAlignedx10_a9.a0;
-  result += passStruct9BytesInt4Or8ByteAlignedx10_a9.a1;
-
-  passStruct9BytesInt4Or8ByteAlignedx10Result = result;
-
-  return result;
-}
-
-/// Argument is a single byte over a multiple of word size.
-/// With alignment rules taken into account size is 12 or 16 bytes.
-/// 10 struct arguments will exhaust available registers.
-///
-int passStruct9BytesInt4Or8ByteAlignedx10(
-    Struct9BytesInt4Or8ByteAligned a0,
-    Struct9BytesInt4Or8ByteAligned a1,
-    Struct9BytesInt4Or8ByteAligned a2,
-    Struct9BytesInt4Or8ByteAligned a3,
-    Struct9BytesInt4Or8ByteAligned a4,
-    Struct9BytesInt4Or8ByteAligned a5,
-    Struct9BytesInt4Or8ByteAligned a6,
-    Struct9BytesInt4Or8ByteAligned a7,
-    Struct9BytesInt4Or8ByteAligned a8,
-    Struct9BytesInt4Or8ByteAligned a9) {
-  print(
-      "passStruct9BytesInt4Or8ByteAlignedx10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassStruct9BytesInt4Or8ByteAlignedx10 throwing on purpose!");
-  }
-
-  passStruct9BytesInt4Or8ByteAlignedx10_a0 = a0;
-  passStruct9BytesInt4Or8ByteAlignedx10_a1 = a1;
-  passStruct9BytesInt4Or8ByteAlignedx10_a2 = a2;
-  passStruct9BytesInt4Or8ByteAlignedx10_a3 = a3;
-  passStruct9BytesInt4Or8ByteAlignedx10_a4 = a4;
-  passStruct9BytesInt4Or8ByteAlignedx10_a5 = a5;
-  passStruct9BytesInt4Or8ByteAlignedx10_a6 = a6;
-  passStruct9BytesInt4Or8ByteAlignedx10_a7 = a7;
-  passStruct9BytesInt4Or8ByteAlignedx10_a8 = a8;
-  passStruct9BytesInt4Or8ByteAlignedx10_a9 = a9;
-
-  final result = passStruct9BytesInt4Or8ByteAlignedx10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct9BytesInt4Or8ByteAlignedx10AfterCallback() {
-  final result = passStruct9BytesInt4Or8ByteAlignedx10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(10, result);
-}
-
-typedef PassStruct12BytesHomogeneousFloatx6Type = Float Function(
-    Struct12BytesHomogeneousFloat,
-    Struct12BytesHomogeneousFloat,
-    Struct12BytesHomogeneousFloat,
-    Struct12BytesHomogeneousFloat,
-    Struct12BytesHomogeneousFloat,
-    Struct12BytesHomogeneousFloat);
-
-// Global variables to be able to test inputs after callback returned.
-Struct12BytesHomogeneousFloat passStruct12BytesHomogeneousFloatx6_a0 =
-    Pointer<Struct12BytesHomogeneousFloat>.fromAddress(0).ref;
-Struct12BytesHomogeneousFloat passStruct12BytesHomogeneousFloatx6_a1 =
-    Pointer<Struct12BytesHomogeneousFloat>.fromAddress(0).ref;
-Struct12BytesHomogeneousFloat passStruct12BytesHomogeneousFloatx6_a2 =
-    Pointer<Struct12BytesHomogeneousFloat>.fromAddress(0).ref;
-Struct12BytesHomogeneousFloat passStruct12BytesHomogeneousFloatx6_a3 =
-    Pointer<Struct12BytesHomogeneousFloat>.fromAddress(0).ref;
-Struct12BytesHomogeneousFloat passStruct12BytesHomogeneousFloatx6_a4 =
-    Pointer<Struct12BytesHomogeneousFloat>.fromAddress(0).ref;
-Struct12BytesHomogeneousFloat passStruct12BytesHomogeneousFloatx6_a5 =
-    Pointer<Struct12BytesHomogeneousFloat>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passStruct12BytesHomogeneousFloatx6Result = 0.0;
-
-double passStruct12BytesHomogeneousFloatx6CalculateResult() {
-  double result = 0;
-
-  result += passStruct12BytesHomogeneousFloatx6_a0.a0;
-  result += passStruct12BytesHomogeneousFloatx6_a0.a1;
-  result += passStruct12BytesHomogeneousFloatx6_a0.a2;
-  result += passStruct12BytesHomogeneousFloatx6_a1.a0;
-  result += passStruct12BytesHomogeneousFloatx6_a1.a1;
-  result += passStruct12BytesHomogeneousFloatx6_a1.a2;
-  result += passStruct12BytesHomogeneousFloatx6_a2.a0;
-  result += passStruct12BytesHomogeneousFloatx6_a2.a1;
-  result += passStruct12BytesHomogeneousFloatx6_a2.a2;
-  result += passStruct12BytesHomogeneousFloatx6_a3.a0;
-  result += passStruct12BytesHomogeneousFloatx6_a3.a1;
-  result += passStruct12BytesHomogeneousFloatx6_a3.a2;
-  result += passStruct12BytesHomogeneousFloatx6_a4.a0;
-  result += passStruct12BytesHomogeneousFloatx6_a4.a1;
-  result += passStruct12BytesHomogeneousFloatx6_a4.a2;
-  result += passStruct12BytesHomogeneousFloatx6_a5.a0;
-  result += passStruct12BytesHomogeneousFloatx6_a5.a1;
-  result += passStruct12BytesHomogeneousFloatx6_a5.a2;
-
-  passStruct12BytesHomogeneousFloatx6Result = result;
-
-  return result;
-}
-
-/// Arguments in FPU registers on arm hardfp and arm64.
-/// Struct arguments will exhaust available registers, and leave some empty.
-/// The last argument is to test whether arguments are backfilled.
-double passStruct12BytesHomogeneousFloatx6(
-    Struct12BytesHomogeneousFloat a0,
-    Struct12BytesHomogeneousFloat a1,
-    Struct12BytesHomogeneousFloat a2,
-    Struct12BytesHomogeneousFloat a3,
-    Struct12BytesHomogeneousFloat a4,
-    Struct12BytesHomogeneousFloat a5) {
-  print(
-      "passStruct12BytesHomogeneousFloatx6(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct12BytesHomogeneousFloatx6 throwing on purpose!");
-  }
-
-  passStruct12BytesHomogeneousFloatx6_a0 = a0;
-  passStruct12BytesHomogeneousFloatx6_a1 = a1;
-  passStruct12BytesHomogeneousFloatx6_a2 = a2;
-  passStruct12BytesHomogeneousFloatx6_a3 = a3;
-  passStruct12BytesHomogeneousFloatx6_a4 = a4;
-  passStruct12BytesHomogeneousFloatx6_a5 = a5;
-
-  final result = passStruct12BytesHomogeneousFloatx6CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct12BytesHomogeneousFloatx6AfterCallback() {
-  final result = passStruct12BytesHomogeneousFloatx6CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(9.0, result);
-}
-
-typedef PassStruct16BytesHomogeneousFloatx5Type = Float Function(
-    Struct16BytesHomogeneousFloat,
-    Struct16BytesHomogeneousFloat,
-    Struct16BytesHomogeneousFloat,
-    Struct16BytesHomogeneousFloat,
-    Struct16BytesHomogeneousFloat);
-
-// Global variables to be able to test inputs after callback returned.
-Struct16BytesHomogeneousFloat passStruct16BytesHomogeneousFloatx5_a0 =
-    Pointer<Struct16BytesHomogeneousFloat>.fromAddress(0).ref;
-Struct16BytesHomogeneousFloat passStruct16BytesHomogeneousFloatx5_a1 =
-    Pointer<Struct16BytesHomogeneousFloat>.fromAddress(0).ref;
-Struct16BytesHomogeneousFloat passStruct16BytesHomogeneousFloatx5_a2 =
-    Pointer<Struct16BytesHomogeneousFloat>.fromAddress(0).ref;
-Struct16BytesHomogeneousFloat passStruct16BytesHomogeneousFloatx5_a3 =
-    Pointer<Struct16BytesHomogeneousFloat>.fromAddress(0).ref;
-Struct16BytesHomogeneousFloat passStruct16BytesHomogeneousFloatx5_a4 =
-    Pointer<Struct16BytesHomogeneousFloat>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passStruct16BytesHomogeneousFloatx5Result = 0.0;
-
-double passStruct16BytesHomogeneousFloatx5CalculateResult() {
-  double result = 0;
-
-  result += passStruct16BytesHomogeneousFloatx5_a0.a0;
-  result += passStruct16BytesHomogeneousFloatx5_a0.a1;
-  result += passStruct16BytesHomogeneousFloatx5_a0.a2;
-  result += passStruct16BytesHomogeneousFloatx5_a0.a3;
-  result += passStruct16BytesHomogeneousFloatx5_a1.a0;
-  result += passStruct16BytesHomogeneousFloatx5_a1.a1;
-  result += passStruct16BytesHomogeneousFloatx5_a1.a2;
-  result += passStruct16BytesHomogeneousFloatx5_a1.a3;
-  result += passStruct16BytesHomogeneousFloatx5_a2.a0;
-  result += passStruct16BytesHomogeneousFloatx5_a2.a1;
-  result += passStruct16BytesHomogeneousFloatx5_a2.a2;
-  result += passStruct16BytesHomogeneousFloatx5_a2.a3;
-  result += passStruct16BytesHomogeneousFloatx5_a3.a0;
-  result += passStruct16BytesHomogeneousFloatx5_a3.a1;
-  result += passStruct16BytesHomogeneousFloatx5_a3.a2;
-  result += passStruct16BytesHomogeneousFloatx5_a3.a3;
-  result += passStruct16BytesHomogeneousFloatx5_a4.a0;
-  result += passStruct16BytesHomogeneousFloatx5_a4.a1;
-  result += passStruct16BytesHomogeneousFloatx5_a4.a2;
-  result += passStruct16BytesHomogeneousFloatx5_a4.a3;
-
-  passStruct16BytesHomogeneousFloatx5Result = result;
-
-  return result;
-}
-
-/// On Linux x64 argument is transferred on stack because it is over 16 bytes.
-/// Arguments in FPU registers on arm hardfp and arm64.
-/// 5 struct arguments will exhaust available registers.
-double passStruct16BytesHomogeneousFloatx5(
-    Struct16BytesHomogeneousFloat a0,
-    Struct16BytesHomogeneousFloat a1,
-    Struct16BytesHomogeneousFloat a2,
-    Struct16BytesHomogeneousFloat a3,
-    Struct16BytesHomogeneousFloat a4) {
-  print(
-      "passStruct16BytesHomogeneousFloatx5(${a0}, ${a1}, ${a2}, ${a3}, ${a4})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct16BytesHomogeneousFloatx5 throwing on purpose!");
-  }
-
-  passStruct16BytesHomogeneousFloatx5_a0 = a0;
-  passStruct16BytesHomogeneousFloatx5_a1 = a1;
-  passStruct16BytesHomogeneousFloatx5_a2 = a2;
-  passStruct16BytesHomogeneousFloatx5_a3 = a3;
-  passStruct16BytesHomogeneousFloatx5_a4 = a4;
-
-  final result = passStruct16BytesHomogeneousFloatx5CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct16BytesHomogeneousFloatx5AfterCallback() {
-  final result = passStruct16BytesHomogeneousFloatx5CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(10.0, result);
-}
-
-typedef PassStruct16BytesMixedx10Type = Double Function(
-    Struct16BytesMixed,
-    Struct16BytesMixed,
-    Struct16BytesMixed,
-    Struct16BytesMixed,
-    Struct16BytesMixed,
-    Struct16BytesMixed,
-    Struct16BytesMixed,
-    Struct16BytesMixed,
-    Struct16BytesMixed,
-    Struct16BytesMixed);
-
-// Global variables to be able to test inputs after callback returned.
-Struct16BytesMixed passStruct16BytesMixedx10_a0 =
-    Pointer<Struct16BytesMixed>.fromAddress(0).ref;
-Struct16BytesMixed passStruct16BytesMixedx10_a1 =
-    Pointer<Struct16BytesMixed>.fromAddress(0).ref;
-Struct16BytesMixed passStruct16BytesMixedx10_a2 =
-    Pointer<Struct16BytesMixed>.fromAddress(0).ref;
-Struct16BytesMixed passStruct16BytesMixedx10_a3 =
-    Pointer<Struct16BytesMixed>.fromAddress(0).ref;
-Struct16BytesMixed passStruct16BytesMixedx10_a4 =
-    Pointer<Struct16BytesMixed>.fromAddress(0).ref;
-Struct16BytesMixed passStruct16BytesMixedx10_a5 =
-    Pointer<Struct16BytesMixed>.fromAddress(0).ref;
-Struct16BytesMixed passStruct16BytesMixedx10_a6 =
-    Pointer<Struct16BytesMixed>.fromAddress(0).ref;
-Struct16BytesMixed passStruct16BytesMixedx10_a7 =
-    Pointer<Struct16BytesMixed>.fromAddress(0).ref;
-Struct16BytesMixed passStruct16BytesMixedx10_a8 =
-    Pointer<Struct16BytesMixed>.fromAddress(0).ref;
-Struct16BytesMixed passStruct16BytesMixedx10_a9 =
-    Pointer<Struct16BytesMixed>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passStruct16BytesMixedx10Result = 0.0;
-
-double passStruct16BytesMixedx10CalculateResult() {
-  double result = 0;
-
-  result += passStruct16BytesMixedx10_a0.a0;
-  result += passStruct16BytesMixedx10_a0.a1;
-  result += passStruct16BytesMixedx10_a1.a0;
-  result += passStruct16BytesMixedx10_a1.a1;
-  result += passStruct16BytesMixedx10_a2.a0;
-  result += passStruct16BytesMixedx10_a2.a1;
-  result += passStruct16BytesMixedx10_a3.a0;
-  result += passStruct16BytesMixedx10_a3.a1;
-  result += passStruct16BytesMixedx10_a4.a0;
-  result += passStruct16BytesMixedx10_a4.a1;
-  result += passStruct16BytesMixedx10_a5.a0;
-  result += passStruct16BytesMixedx10_a5.a1;
-  result += passStruct16BytesMixedx10_a6.a0;
-  result += passStruct16BytesMixedx10_a6.a1;
-  result += passStruct16BytesMixedx10_a7.a0;
-  result += passStruct16BytesMixedx10_a7.a1;
-  result += passStruct16BytesMixedx10_a8.a0;
-  result += passStruct16BytesMixedx10_a8.a1;
-  result += passStruct16BytesMixedx10_a9.a0;
-  result += passStruct16BytesMixedx10_a9.a1;
-
-  passStruct16BytesMixedx10Result = result;
-
-  return result;
-}
-
-/// On x64, arguments are split over FP and int registers.
-/// On x64, it will exhaust the integer registers with the 6th argument.
-/// The rest goes on the stack.
-/// On arm, arguments are 8 byte aligned.
-double passStruct16BytesMixedx10(
-    Struct16BytesMixed a0,
-    Struct16BytesMixed a1,
-    Struct16BytesMixed a2,
-    Struct16BytesMixed a3,
-    Struct16BytesMixed a4,
-    Struct16BytesMixed a5,
-    Struct16BytesMixed a6,
-    Struct16BytesMixed a7,
-    Struct16BytesMixed a8,
-    Struct16BytesMixed a9) {
-  print(
-      "passStruct16BytesMixedx10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct16BytesMixedx10 throwing on purpose!");
-  }
-
-  passStruct16BytesMixedx10_a0 = a0;
-  passStruct16BytesMixedx10_a1 = a1;
-  passStruct16BytesMixedx10_a2 = a2;
-  passStruct16BytesMixedx10_a3 = a3;
-  passStruct16BytesMixedx10_a4 = a4;
-  passStruct16BytesMixedx10_a5 = a5;
-  passStruct16BytesMixedx10_a6 = a6;
-  passStruct16BytesMixedx10_a7 = a7;
-  passStruct16BytesMixedx10_a8 = a8;
-  passStruct16BytesMixedx10_a9 = a9;
-
-  final result = passStruct16BytesMixedx10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct16BytesMixedx10AfterCallback() {
-  final result = passStruct16BytesMixedx10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(10.0, result);
-}
-
-typedef PassStruct16BytesMixed2x10Type = Float Function(
-    Struct16BytesMixed2,
-    Struct16BytesMixed2,
-    Struct16BytesMixed2,
-    Struct16BytesMixed2,
-    Struct16BytesMixed2,
-    Struct16BytesMixed2,
-    Struct16BytesMixed2,
-    Struct16BytesMixed2,
-    Struct16BytesMixed2,
-    Struct16BytesMixed2);
-
-// Global variables to be able to test inputs after callback returned.
-Struct16BytesMixed2 passStruct16BytesMixed2x10_a0 =
-    Pointer<Struct16BytesMixed2>.fromAddress(0).ref;
-Struct16BytesMixed2 passStruct16BytesMixed2x10_a1 =
-    Pointer<Struct16BytesMixed2>.fromAddress(0).ref;
-Struct16BytesMixed2 passStruct16BytesMixed2x10_a2 =
-    Pointer<Struct16BytesMixed2>.fromAddress(0).ref;
-Struct16BytesMixed2 passStruct16BytesMixed2x10_a3 =
-    Pointer<Struct16BytesMixed2>.fromAddress(0).ref;
-Struct16BytesMixed2 passStruct16BytesMixed2x10_a4 =
-    Pointer<Struct16BytesMixed2>.fromAddress(0).ref;
-Struct16BytesMixed2 passStruct16BytesMixed2x10_a5 =
-    Pointer<Struct16BytesMixed2>.fromAddress(0).ref;
-Struct16BytesMixed2 passStruct16BytesMixed2x10_a6 =
-    Pointer<Struct16BytesMixed2>.fromAddress(0).ref;
-Struct16BytesMixed2 passStruct16BytesMixed2x10_a7 =
-    Pointer<Struct16BytesMixed2>.fromAddress(0).ref;
-Struct16BytesMixed2 passStruct16BytesMixed2x10_a8 =
-    Pointer<Struct16BytesMixed2>.fromAddress(0).ref;
-Struct16BytesMixed2 passStruct16BytesMixed2x10_a9 =
-    Pointer<Struct16BytesMixed2>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passStruct16BytesMixed2x10Result = 0.0;
-
-double passStruct16BytesMixed2x10CalculateResult() {
-  double result = 0;
-
-  result += passStruct16BytesMixed2x10_a0.a0;
-  result += passStruct16BytesMixed2x10_a0.a1;
-  result += passStruct16BytesMixed2x10_a0.a2;
-  result += passStruct16BytesMixed2x10_a0.a3;
-  result += passStruct16BytesMixed2x10_a1.a0;
-  result += passStruct16BytesMixed2x10_a1.a1;
-  result += passStruct16BytesMixed2x10_a1.a2;
-  result += passStruct16BytesMixed2x10_a1.a3;
-  result += passStruct16BytesMixed2x10_a2.a0;
-  result += passStruct16BytesMixed2x10_a2.a1;
-  result += passStruct16BytesMixed2x10_a2.a2;
-  result += passStruct16BytesMixed2x10_a2.a3;
-  result += passStruct16BytesMixed2x10_a3.a0;
-  result += passStruct16BytesMixed2x10_a3.a1;
-  result += passStruct16BytesMixed2x10_a3.a2;
-  result += passStruct16BytesMixed2x10_a3.a3;
-  result += passStruct16BytesMixed2x10_a4.a0;
-  result += passStruct16BytesMixed2x10_a4.a1;
-  result += passStruct16BytesMixed2x10_a4.a2;
-  result += passStruct16BytesMixed2x10_a4.a3;
-  result += passStruct16BytesMixed2x10_a5.a0;
-  result += passStruct16BytesMixed2x10_a5.a1;
-  result += passStruct16BytesMixed2x10_a5.a2;
-  result += passStruct16BytesMixed2x10_a5.a3;
-  result += passStruct16BytesMixed2x10_a6.a0;
-  result += passStruct16BytesMixed2x10_a6.a1;
-  result += passStruct16BytesMixed2x10_a6.a2;
-  result += passStruct16BytesMixed2x10_a6.a3;
-  result += passStruct16BytesMixed2x10_a7.a0;
-  result += passStruct16BytesMixed2x10_a7.a1;
-  result += passStruct16BytesMixed2x10_a7.a2;
-  result += passStruct16BytesMixed2x10_a7.a3;
-  result += passStruct16BytesMixed2x10_a8.a0;
-  result += passStruct16BytesMixed2x10_a8.a1;
-  result += passStruct16BytesMixed2x10_a8.a2;
-  result += passStruct16BytesMixed2x10_a8.a3;
-  result += passStruct16BytesMixed2x10_a9.a0;
-  result += passStruct16BytesMixed2x10_a9.a1;
-  result += passStruct16BytesMixed2x10_a9.a2;
-  result += passStruct16BytesMixed2x10_a9.a3;
-
-  passStruct16BytesMixed2x10Result = result;
-
-  return result;
-}
-
-/// On x64, arguments are split over FP and int registers.
-/// On x64, it will exhaust the integer registers with the 6th argument.
-/// The rest goes on the stack.
-/// On arm, arguments are 4 byte aligned.
-double passStruct16BytesMixed2x10(
-    Struct16BytesMixed2 a0,
-    Struct16BytesMixed2 a1,
-    Struct16BytesMixed2 a2,
-    Struct16BytesMixed2 a3,
-    Struct16BytesMixed2 a4,
-    Struct16BytesMixed2 a5,
-    Struct16BytesMixed2 a6,
-    Struct16BytesMixed2 a7,
-    Struct16BytesMixed2 a8,
-    Struct16BytesMixed2 a9) {
-  print(
-      "passStruct16BytesMixed2x10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct16BytesMixed2x10 throwing on purpose!");
-  }
-
-  passStruct16BytesMixed2x10_a0 = a0;
-  passStruct16BytesMixed2x10_a1 = a1;
-  passStruct16BytesMixed2x10_a2 = a2;
-  passStruct16BytesMixed2x10_a3 = a3;
-  passStruct16BytesMixed2x10_a4 = a4;
-  passStruct16BytesMixed2x10_a5 = a5;
-  passStruct16BytesMixed2x10_a6 = a6;
-  passStruct16BytesMixed2x10_a7 = a7;
-  passStruct16BytesMixed2x10_a8 = a8;
-  passStruct16BytesMixed2x10_a9 = a9;
-
-  final result = passStruct16BytesMixed2x10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct16BytesMixed2x10AfterCallback() {
-  final result = passStruct16BytesMixed2x10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(20.0, result);
-}
-
-typedef PassStruct17BytesIntx10Type = Int64 Function(
-    Struct17BytesInt,
-    Struct17BytesInt,
-    Struct17BytesInt,
-    Struct17BytesInt,
-    Struct17BytesInt,
-    Struct17BytesInt,
-    Struct17BytesInt,
-    Struct17BytesInt,
-    Struct17BytesInt,
-    Struct17BytesInt);
-
-// Global variables to be able to test inputs after callback returned.
-Struct17BytesInt passStruct17BytesIntx10_a0 =
-    Pointer<Struct17BytesInt>.fromAddress(0).ref;
-Struct17BytesInt passStruct17BytesIntx10_a1 =
-    Pointer<Struct17BytesInt>.fromAddress(0).ref;
-Struct17BytesInt passStruct17BytesIntx10_a2 =
-    Pointer<Struct17BytesInt>.fromAddress(0).ref;
-Struct17BytesInt passStruct17BytesIntx10_a3 =
-    Pointer<Struct17BytesInt>.fromAddress(0).ref;
-Struct17BytesInt passStruct17BytesIntx10_a4 =
-    Pointer<Struct17BytesInt>.fromAddress(0).ref;
-Struct17BytesInt passStruct17BytesIntx10_a5 =
-    Pointer<Struct17BytesInt>.fromAddress(0).ref;
-Struct17BytesInt passStruct17BytesIntx10_a6 =
-    Pointer<Struct17BytesInt>.fromAddress(0).ref;
-Struct17BytesInt passStruct17BytesIntx10_a7 =
-    Pointer<Struct17BytesInt>.fromAddress(0).ref;
-Struct17BytesInt passStruct17BytesIntx10_a8 =
-    Pointer<Struct17BytesInt>.fromAddress(0).ref;
-Struct17BytesInt passStruct17BytesIntx10_a9 =
-    Pointer<Struct17BytesInt>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStruct17BytesIntx10Result = 0;
-
-int passStruct17BytesIntx10CalculateResult() {
-  int result = 0;
-
-  result += passStruct17BytesIntx10_a0.a0;
-  result += passStruct17BytesIntx10_a0.a1;
-  result += passStruct17BytesIntx10_a0.a2;
-  result += passStruct17BytesIntx10_a1.a0;
-  result += passStruct17BytesIntx10_a1.a1;
-  result += passStruct17BytesIntx10_a1.a2;
-  result += passStruct17BytesIntx10_a2.a0;
-  result += passStruct17BytesIntx10_a2.a1;
-  result += passStruct17BytesIntx10_a2.a2;
-  result += passStruct17BytesIntx10_a3.a0;
-  result += passStruct17BytesIntx10_a3.a1;
-  result += passStruct17BytesIntx10_a3.a2;
-  result += passStruct17BytesIntx10_a4.a0;
-  result += passStruct17BytesIntx10_a4.a1;
-  result += passStruct17BytesIntx10_a4.a2;
-  result += passStruct17BytesIntx10_a5.a0;
-  result += passStruct17BytesIntx10_a5.a1;
-  result += passStruct17BytesIntx10_a5.a2;
-  result += passStruct17BytesIntx10_a6.a0;
-  result += passStruct17BytesIntx10_a6.a1;
-  result += passStruct17BytesIntx10_a6.a2;
-  result += passStruct17BytesIntx10_a7.a0;
-  result += passStruct17BytesIntx10_a7.a1;
-  result += passStruct17BytesIntx10_a7.a2;
-  result += passStruct17BytesIntx10_a8.a0;
-  result += passStruct17BytesIntx10_a8.a1;
-  result += passStruct17BytesIntx10_a8.a2;
-  result += passStruct17BytesIntx10_a9.a0;
-  result += passStruct17BytesIntx10_a9.a1;
-  result += passStruct17BytesIntx10_a9.a2;
-
-  passStruct17BytesIntx10Result = result;
-
-  return result;
-}
-
-/// Arguments are passed as pointer to copy on arm64.
-/// Tests that the memory allocated for copies are rounded up to word size.
-int passStruct17BytesIntx10(
-    Struct17BytesInt a0,
-    Struct17BytesInt a1,
-    Struct17BytesInt a2,
-    Struct17BytesInt a3,
-    Struct17BytesInt a4,
-    Struct17BytesInt a5,
-    Struct17BytesInt a6,
-    Struct17BytesInt a7,
-    Struct17BytesInt a8,
-    Struct17BytesInt a9) {
-  print(
-      "passStruct17BytesIntx10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct17BytesIntx10 throwing on purpose!");
-  }
-
-  passStruct17BytesIntx10_a0 = a0;
-  passStruct17BytesIntx10_a1 = a1;
-  passStruct17BytesIntx10_a2 = a2;
-  passStruct17BytesIntx10_a3 = a3;
-  passStruct17BytesIntx10_a4 = a4;
-  passStruct17BytesIntx10_a5 = a5;
-  passStruct17BytesIntx10_a6 = a6;
-  passStruct17BytesIntx10_a7 = a7;
-  passStruct17BytesIntx10_a8 = a8;
-  passStruct17BytesIntx10_a9 = a9;
-
-  final result = passStruct17BytesIntx10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct17BytesIntx10AfterCallback() {
-  final result = passStruct17BytesIntx10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(15, result);
-}
-
-typedef PassStruct19BytesHomogeneousUint8x10Type = Int64 Function(
-    Struct19BytesHomogeneousUint8,
-    Struct19BytesHomogeneousUint8,
-    Struct19BytesHomogeneousUint8,
-    Struct19BytesHomogeneousUint8,
-    Struct19BytesHomogeneousUint8,
-    Struct19BytesHomogeneousUint8,
-    Struct19BytesHomogeneousUint8,
-    Struct19BytesHomogeneousUint8,
-    Struct19BytesHomogeneousUint8,
-    Struct19BytesHomogeneousUint8);
-
-// Global variables to be able to test inputs after callback returned.
-Struct19BytesHomogeneousUint8 passStruct19BytesHomogeneousUint8x10_a0 =
-    Pointer<Struct19BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct19BytesHomogeneousUint8 passStruct19BytesHomogeneousUint8x10_a1 =
-    Pointer<Struct19BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct19BytesHomogeneousUint8 passStruct19BytesHomogeneousUint8x10_a2 =
-    Pointer<Struct19BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct19BytesHomogeneousUint8 passStruct19BytesHomogeneousUint8x10_a3 =
-    Pointer<Struct19BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct19BytesHomogeneousUint8 passStruct19BytesHomogeneousUint8x10_a4 =
-    Pointer<Struct19BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct19BytesHomogeneousUint8 passStruct19BytesHomogeneousUint8x10_a5 =
-    Pointer<Struct19BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct19BytesHomogeneousUint8 passStruct19BytesHomogeneousUint8x10_a6 =
-    Pointer<Struct19BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct19BytesHomogeneousUint8 passStruct19BytesHomogeneousUint8x10_a7 =
-    Pointer<Struct19BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct19BytesHomogeneousUint8 passStruct19BytesHomogeneousUint8x10_a8 =
-    Pointer<Struct19BytesHomogeneousUint8>.fromAddress(0).ref;
-Struct19BytesHomogeneousUint8 passStruct19BytesHomogeneousUint8x10_a9 =
-    Pointer<Struct19BytesHomogeneousUint8>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStruct19BytesHomogeneousUint8x10Result = 0;
-
-int passStruct19BytesHomogeneousUint8x10CalculateResult() {
-  int result = 0;
-
-  result += passStruct19BytesHomogeneousUint8x10_a0.a0;
-  result += passStruct19BytesHomogeneousUint8x10_a0.a1;
-  result += passStruct19BytesHomogeneousUint8x10_a0.a2;
-  result += passStruct19BytesHomogeneousUint8x10_a0.a3;
-  result += passStruct19BytesHomogeneousUint8x10_a0.a4;
-  result += passStruct19BytesHomogeneousUint8x10_a0.a5;
-  result += passStruct19BytesHomogeneousUint8x10_a0.a6;
-  result += passStruct19BytesHomogeneousUint8x10_a0.a7;
-  result += passStruct19BytesHomogeneousUint8x10_a0.a8;
-  result += passStruct19BytesHomogeneousUint8x10_a0.a9;
-  result += passStruct19BytesHomogeneousUint8x10_a0.a10;
-  result += passStruct19BytesHomogeneousUint8x10_a0.a11;
-  result += passStruct19BytesHomogeneousUint8x10_a0.a12;
-  result += passStruct19BytesHomogeneousUint8x10_a0.a13;
-  result += passStruct19BytesHomogeneousUint8x10_a0.a14;
-  result += passStruct19BytesHomogeneousUint8x10_a0.a15;
-  result += passStruct19BytesHomogeneousUint8x10_a0.a16;
-  result += passStruct19BytesHomogeneousUint8x10_a0.a17;
-  result += passStruct19BytesHomogeneousUint8x10_a0.a18;
-  result += passStruct19BytesHomogeneousUint8x10_a1.a0;
-  result += passStruct19BytesHomogeneousUint8x10_a1.a1;
-  result += passStruct19BytesHomogeneousUint8x10_a1.a2;
-  result += passStruct19BytesHomogeneousUint8x10_a1.a3;
-  result += passStruct19BytesHomogeneousUint8x10_a1.a4;
-  result += passStruct19BytesHomogeneousUint8x10_a1.a5;
-  result += passStruct19BytesHomogeneousUint8x10_a1.a6;
-  result += passStruct19BytesHomogeneousUint8x10_a1.a7;
-  result += passStruct19BytesHomogeneousUint8x10_a1.a8;
-  result += passStruct19BytesHomogeneousUint8x10_a1.a9;
-  result += passStruct19BytesHomogeneousUint8x10_a1.a10;
-  result += passStruct19BytesHomogeneousUint8x10_a1.a11;
-  result += passStruct19BytesHomogeneousUint8x10_a1.a12;
-  result += passStruct19BytesHomogeneousUint8x10_a1.a13;
-  result += passStruct19BytesHomogeneousUint8x10_a1.a14;
-  result += passStruct19BytesHomogeneousUint8x10_a1.a15;
-  result += passStruct19BytesHomogeneousUint8x10_a1.a16;
-  result += passStruct19BytesHomogeneousUint8x10_a1.a17;
-  result += passStruct19BytesHomogeneousUint8x10_a1.a18;
-  result += passStruct19BytesHomogeneousUint8x10_a2.a0;
-  result += passStruct19BytesHomogeneousUint8x10_a2.a1;
-  result += passStruct19BytesHomogeneousUint8x10_a2.a2;
-  result += passStruct19BytesHomogeneousUint8x10_a2.a3;
-  result += passStruct19BytesHomogeneousUint8x10_a2.a4;
-  result += passStruct19BytesHomogeneousUint8x10_a2.a5;
-  result += passStruct19BytesHomogeneousUint8x10_a2.a6;
-  result += passStruct19BytesHomogeneousUint8x10_a2.a7;
-  result += passStruct19BytesHomogeneousUint8x10_a2.a8;
-  result += passStruct19BytesHomogeneousUint8x10_a2.a9;
-  result += passStruct19BytesHomogeneousUint8x10_a2.a10;
-  result += passStruct19BytesHomogeneousUint8x10_a2.a11;
-  result += passStruct19BytesHomogeneousUint8x10_a2.a12;
-  result += passStruct19BytesHomogeneousUint8x10_a2.a13;
-  result += passStruct19BytesHomogeneousUint8x10_a2.a14;
-  result += passStruct19BytesHomogeneousUint8x10_a2.a15;
-  result += passStruct19BytesHomogeneousUint8x10_a2.a16;
-  result += passStruct19BytesHomogeneousUint8x10_a2.a17;
-  result += passStruct19BytesHomogeneousUint8x10_a2.a18;
-  result += passStruct19BytesHomogeneousUint8x10_a3.a0;
-  result += passStruct19BytesHomogeneousUint8x10_a3.a1;
-  result += passStruct19BytesHomogeneousUint8x10_a3.a2;
-  result += passStruct19BytesHomogeneousUint8x10_a3.a3;
-  result += passStruct19BytesHomogeneousUint8x10_a3.a4;
-  result += passStruct19BytesHomogeneousUint8x10_a3.a5;
-  result += passStruct19BytesHomogeneousUint8x10_a3.a6;
-  result += passStruct19BytesHomogeneousUint8x10_a3.a7;
-  result += passStruct19BytesHomogeneousUint8x10_a3.a8;
-  result += passStruct19BytesHomogeneousUint8x10_a3.a9;
-  result += passStruct19BytesHomogeneousUint8x10_a3.a10;
-  result += passStruct19BytesHomogeneousUint8x10_a3.a11;
-  result += passStruct19BytesHomogeneousUint8x10_a3.a12;
-  result += passStruct19BytesHomogeneousUint8x10_a3.a13;
-  result += passStruct19BytesHomogeneousUint8x10_a3.a14;
-  result += passStruct19BytesHomogeneousUint8x10_a3.a15;
-  result += passStruct19BytesHomogeneousUint8x10_a3.a16;
-  result += passStruct19BytesHomogeneousUint8x10_a3.a17;
-  result += passStruct19BytesHomogeneousUint8x10_a3.a18;
-  result += passStruct19BytesHomogeneousUint8x10_a4.a0;
-  result += passStruct19BytesHomogeneousUint8x10_a4.a1;
-  result += passStruct19BytesHomogeneousUint8x10_a4.a2;
-  result += passStruct19BytesHomogeneousUint8x10_a4.a3;
-  result += passStruct19BytesHomogeneousUint8x10_a4.a4;
-  result += passStruct19BytesHomogeneousUint8x10_a4.a5;
-  result += passStruct19BytesHomogeneousUint8x10_a4.a6;
-  result += passStruct19BytesHomogeneousUint8x10_a4.a7;
-  result += passStruct19BytesHomogeneousUint8x10_a4.a8;
-  result += passStruct19BytesHomogeneousUint8x10_a4.a9;
-  result += passStruct19BytesHomogeneousUint8x10_a4.a10;
-  result += passStruct19BytesHomogeneousUint8x10_a4.a11;
-  result += passStruct19BytesHomogeneousUint8x10_a4.a12;
-  result += passStruct19BytesHomogeneousUint8x10_a4.a13;
-  result += passStruct19BytesHomogeneousUint8x10_a4.a14;
-  result += passStruct19BytesHomogeneousUint8x10_a4.a15;
-  result += passStruct19BytesHomogeneousUint8x10_a4.a16;
-  result += passStruct19BytesHomogeneousUint8x10_a4.a17;
-  result += passStruct19BytesHomogeneousUint8x10_a4.a18;
-  result += passStruct19BytesHomogeneousUint8x10_a5.a0;
-  result += passStruct19BytesHomogeneousUint8x10_a5.a1;
-  result += passStruct19BytesHomogeneousUint8x10_a5.a2;
-  result += passStruct19BytesHomogeneousUint8x10_a5.a3;
-  result += passStruct19BytesHomogeneousUint8x10_a5.a4;
-  result += passStruct19BytesHomogeneousUint8x10_a5.a5;
-  result += passStruct19BytesHomogeneousUint8x10_a5.a6;
-  result += passStruct19BytesHomogeneousUint8x10_a5.a7;
-  result += passStruct19BytesHomogeneousUint8x10_a5.a8;
-  result += passStruct19BytesHomogeneousUint8x10_a5.a9;
-  result += passStruct19BytesHomogeneousUint8x10_a5.a10;
-  result += passStruct19BytesHomogeneousUint8x10_a5.a11;
-  result += passStruct19BytesHomogeneousUint8x10_a5.a12;
-  result += passStruct19BytesHomogeneousUint8x10_a5.a13;
-  result += passStruct19BytesHomogeneousUint8x10_a5.a14;
-  result += passStruct19BytesHomogeneousUint8x10_a5.a15;
-  result += passStruct19BytesHomogeneousUint8x10_a5.a16;
-  result += passStruct19BytesHomogeneousUint8x10_a5.a17;
-  result += passStruct19BytesHomogeneousUint8x10_a5.a18;
-  result += passStruct19BytesHomogeneousUint8x10_a6.a0;
-  result += passStruct19BytesHomogeneousUint8x10_a6.a1;
-  result += passStruct19BytesHomogeneousUint8x10_a6.a2;
-  result += passStruct19BytesHomogeneousUint8x10_a6.a3;
-  result += passStruct19BytesHomogeneousUint8x10_a6.a4;
-  result += passStruct19BytesHomogeneousUint8x10_a6.a5;
-  result += passStruct19BytesHomogeneousUint8x10_a6.a6;
-  result += passStruct19BytesHomogeneousUint8x10_a6.a7;
-  result += passStruct19BytesHomogeneousUint8x10_a6.a8;
-  result += passStruct19BytesHomogeneousUint8x10_a6.a9;
-  result += passStruct19BytesHomogeneousUint8x10_a6.a10;
-  result += passStruct19BytesHomogeneousUint8x10_a6.a11;
-  result += passStruct19BytesHomogeneousUint8x10_a6.a12;
-  result += passStruct19BytesHomogeneousUint8x10_a6.a13;
-  result += passStruct19BytesHomogeneousUint8x10_a6.a14;
-  result += passStruct19BytesHomogeneousUint8x10_a6.a15;
-  result += passStruct19BytesHomogeneousUint8x10_a6.a16;
-  result += passStruct19BytesHomogeneousUint8x10_a6.a17;
-  result += passStruct19BytesHomogeneousUint8x10_a6.a18;
-  result += passStruct19BytesHomogeneousUint8x10_a7.a0;
-  result += passStruct19BytesHomogeneousUint8x10_a7.a1;
-  result += passStruct19BytesHomogeneousUint8x10_a7.a2;
-  result += passStruct19BytesHomogeneousUint8x10_a7.a3;
-  result += passStruct19BytesHomogeneousUint8x10_a7.a4;
-  result += passStruct19BytesHomogeneousUint8x10_a7.a5;
-  result += passStruct19BytesHomogeneousUint8x10_a7.a6;
-  result += passStruct19BytesHomogeneousUint8x10_a7.a7;
-  result += passStruct19BytesHomogeneousUint8x10_a7.a8;
-  result += passStruct19BytesHomogeneousUint8x10_a7.a9;
-  result += passStruct19BytesHomogeneousUint8x10_a7.a10;
-  result += passStruct19BytesHomogeneousUint8x10_a7.a11;
-  result += passStruct19BytesHomogeneousUint8x10_a7.a12;
-  result += passStruct19BytesHomogeneousUint8x10_a7.a13;
-  result += passStruct19BytesHomogeneousUint8x10_a7.a14;
-  result += passStruct19BytesHomogeneousUint8x10_a7.a15;
-  result += passStruct19BytesHomogeneousUint8x10_a7.a16;
-  result += passStruct19BytesHomogeneousUint8x10_a7.a17;
-  result += passStruct19BytesHomogeneousUint8x10_a7.a18;
-  result += passStruct19BytesHomogeneousUint8x10_a8.a0;
-  result += passStruct19BytesHomogeneousUint8x10_a8.a1;
-  result += passStruct19BytesHomogeneousUint8x10_a8.a2;
-  result += passStruct19BytesHomogeneousUint8x10_a8.a3;
-  result += passStruct19BytesHomogeneousUint8x10_a8.a4;
-  result += passStruct19BytesHomogeneousUint8x10_a8.a5;
-  result += passStruct19BytesHomogeneousUint8x10_a8.a6;
-  result += passStruct19BytesHomogeneousUint8x10_a8.a7;
-  result += passStruct19BytesHomogeneousUint8x10_a8.a8;
-  result += passStruct19BytesHomogeneousUint8x10_a8.a9;
-  result += passStruct19BytesHomogeneousUint8x10_a8.a10;
-  result += passStruct19BytesHomogeneousUint8x10_a8.a11;
-  result += passStruct19BytesHomogeneousUint8x10_a8.a12;
-  result += passStruct19BytesHomogeneousUint8x10_a8.a13;
-  result += passStruct19BytesHomogeneousUint8x10_a8.a14;
-  result += passStruct19BytesHomogeneousUint8x10_a8.a15;
-  result += passStruct19BytesHomogeneousUint8x10_a8.a16;
-  result += passStruct19BytesHomogeneousUint8x10_a8.a17;
-  result += passStruct19BytesHomogeneousUint8x10_a8.a18;
-  result += passStruct19BytesHomogeneousUint8x10_a9.a0;
-  result += passStruct19BytesHomogeneousUint8x10_a9.a1;
-  result += passStruct19BytesHomogeneousUint8x10_a9.a2;
-  result += passStruct19BytesHomogeneousUint8x10_a9.a3;
-  result += passStruct19BytesHomogeneousUint8x10_a9.a4;
-  result += passStruct19BytesHomogeneousUint8x10_a9.a5;
-  result += passStruct19BytesHomogeneousUint8x10_a9.a6;
-  result += passStruct19BytesHomogeneousUint8x10_a9.a7;
-  result += passStruct19BytesHomogeneousUint8x10_a9.a8;
-  result += passStruct19BytesHomogeneousUint8x10_a9.a9;
-  result += passStruct19BytesHomogeneousUint8x10_a9.a10;
-  result += passStruct19BytesHomogeneousUint8x10_a9.a11;
-  result += passStruct19BytesHomogeneousUint8x10_a9.a12;
-  result += passStruct19BytesHomogeneousUint8x10_a9.a13;
-  result += passStruct19BytesHomogeneousUint8x10_a9.a14;
-  result += passStruct19BytesHomogeneousUint8x10_a9.a15;
-  result += passStruct19BytesHomogeneousUint8x10_a9.a16;
-  result += passStruct19BytesHomogeneousUint8x10_a9.a17;
-  result += passStruct19BytesHomogeneousUint8x10_a9.a18;
-
-  passStruct19BytesHomogeneousUint8x10Result = result;
-
-  return result;
-}
-
-/// The minimum alignment of this struct is only 1 byte based on its fields.
-/// Test that the memory backing these structs is extended to the right size.
-///
-int passStruct19BytesHomogeneousUint8x10(
-    Struct19BytesHomogeneousUint8 a0,
-    Struct19BytesHomogeneousUint8 a1,
-    Struct19BytesHomogeneousUint8 a2,
-    Struct19BytesHomogeneousUint8 a3,
-    Struct19BytesHomogeneousUint8 a4,
-    Struct19BytesHomogeneousUint8 a5,
-    Struct19BytesHomogeneousUint8 a6,
-    Struct19BytesHomogeneousUint8 a7,
-    Struct19BytesHomogeneousUint8 a8,
-    Struct19BytesHomogeneousUint8 a9) {
-  print(
-      "passStruct19BytesHomogeneousUint8x10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassStruct19BytesHomogeneousUint8x10 throwing on purpose!");
-  }
-
-  passStruct19BytesHomogeneousUint8x10_a0 = a0;
-  passStruct19BytesHomogeneousUint8x10_a1 = a1;
-  passStruct19BytesHomogeneousUint8x10_a2 = a2;
-  passStruct19BytesHomogeneousUint8x10_a3 = a3;
-  passStruct19BytesHomogeneousUint8x10_a4 = a4;
-  passStruct19BytesHomogeneousUint8x10_a5 = a5;
-  passStruct19BytesHomogeneousUint8x10_a6 = a6;
-  passStruct19BytesHomogeneousUint8x10_a7 = a7;
-  passStruct19BytesHomogeneousUint8x10_a8 = a8;
-  passStruct19BytesHomogeneousUint8x10_a9 = a9;
-
-  final result = passStruct19BytesHomogeneousUint8x10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct19BytesHomogeneousUint8x10AfterCallback() {
-  final result = passStruct19BytesHomogeneousUint8x10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(18145, result);
-}
-
-typedef PassStruct20BytesHomogeneousInt32x10Type = Int32 Function(
-    Struct20BytesHomogeneousInt32,
-    Struct20BytesHomogeneousInt32,
-    Struct20BytesHomogeneousInt32,
-    Struct20BytesHomogeneousInt32,
-    Struct20BytesHomogeneousInt32,
-    Struct20BytesHomogeneousInt32,
-    Struct20BytesHomogeneousInt32,
-    Struct20BytesHomogeneousInt32,
-    Struct20BytesHomogeneousInt32,
-    Struct20BytesHomogeneousInt32);
-
-// Global variables to be able to test inputs after callback returned.
-Struct20BytesHomogeneousInt32 passStruct20BytesHomogeneousInt32x10_a0 =
-    Pointer<Struct20BytesHomogeneousInt32>.fromAddress(0).ref;
-Struct20BytesHomogeneousInt32 passStruct20BytesHomogeneousInt32x10_a1 =
-    Pointer<Struct20BytesHomogeneousInt32>.fromAddress(0).ref;
-Struct20BytesHomogeneousInt32 passStruct20BytesHomogeneousInt32x10_a2 =
-    Pointer<Struct20BytesHomogeneousInt32>.fromAddress(0).ref;
-Struct20BytesHomogeneousInt32 passStruct20BytesHomogeneousInt32x10_a3 =
-    Pointer<Struct20BytesHomogeneousInt32>.fromAddress(0).ref;
-Struct20BytesHomogeneousInt32 passStruct20BytesHomogeneousInt32x10_a4 =
-    Pointer<Struct20BytesHomogeneousInt32>.fromAddress(0).ref;
-Struct20BytesHomogeneousInt32 passStruct20BytesHomogeneousInt32x10_a5 =
-    Pointer<Struct20BytesHomogeneousInt32>.fromAddress(0).ref;
-Struct20BytesHomogeneousInt32 passStruct20BytesHomogeneousInt32x10_a6 =
-    Pointer<Struct20BytesHomogeneousInt32>.fromAddress(0).ref;
-Struct20BytesHomogeneousInt32 passStruct20BytesHomogeneousInt32x10_a7 =
-    Pointer<Struct20BytesHomogeneousInt32>.fromAddress(0).ref;
-Struct20BytesHomogeneousInt32 passStruct20BytesHomogeneousInt32x10_a8 =
-    Pointer<Struct20BytesHomogeneousInt32>.fromAddress(0).ref;
-Struct20BytesHomogeneousInt32 passStruct20BytesHomogeneousInt32x10_a9 =
-    Pointer<Struct20BytesHomogeneousInt32>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStruct20BytesHomogeneousInt32x10Result = 0;
-
-int passStruct20BytesHomogeneousInt32x10CalculateResult() {
-  int result = 0;
-
-  result += passStruct20BytesHomogeneousInt32x10_a0.a0;
-  result += passStruct20BytesHomogeneousInt32x10_a0.a1;
-  result += passStruct20BytesHomogeneousInt32x10_a0.a2;
-  result += passStruct20BytesHomogeneousInt32x10_a0.a3;
-  result += passStruct20BytesHomogeneousInt32x10_a0.a4;
-  result += passStruct20BytesHomogeneousInt32x10_a1.a0;
-  result += passStruct20BytesHomogeneousInt32x10_a1.a1;
-  result += passStruct20BytesHomogeneousInt32x10_a1.a2;
-  result += passStruct20BytesHomogeneousInt32x10_a1.a3;
-  result += passStruct20BytesHomogeneousInt32x10_a1.a4;
-  result += passStruct20BytesHomogeneousInt32x10_a2.a0;
-  result += passStruct20BytesHomogeneousInt32x10_a2.a1;
-  result += passStruct20BytesHomogeneousInt32x10_a2.a2;
-  result += passStruct20BytesHomogeneousInt32x10_a2.a3;
-  result += passStruct20BytesHomogeneousInt32x10_a2.a4;
-  result += passStruct20BytesHomogeneousInt32x10_a3.a0;
-  result += passStruct20BytesHomogeneousInt32x10_a3.a1;
-  result += passStruct20BytesHomogeneousInt32x10_a3.a2;
-  result += passStruct20BytesHomogeneousInt32x10_a3.a3;
-  result += passStruct20BytesHomogeneousInt32x10_a3.a4;
-  result += passStruct20BytesHomogeneousInt32x10_a4.a0;
-  result += passStruct20BytesHomogeneousInt32x10_a4.a1;
-  result += passStruct20BytesHomogeneousInt32x10_a4.a2;
-  result += passStruct20BytesHomogeneousInt32x10_a4.a3;
-  result += passStruct20BytesHomogeneousInt32x10_a4.a4;
-  result += passStruct20BytesHomogeneousInt32x10_a5.a0;
-  result += passStruct20BytesHomogeneousInt32x10_a5.a1;
-  result += passStruct20BytesHomogeneousInt32x10_a5.a2;
-  result += passStruct20BytesHomogeneousInt32x10_a5.a3;
-  result += passStruct20BytesHomogeneousInt32x10_a5.a4;
-  result += passStruct20BytesHomogeneousInt32x10_a6.a0;
-  result += passStruct20BytesHomogeneousInt32x10_a6.a1;
-  result += passStruct20BytesHomogeneousInt32x10_a6.a2;
-  result += passStruct20BytesHomogeneousInt32x10_a6.a3;
-  result += passStruct20BytesHomogeneousInt32x10_a6.a4;
-  result += passStruct20BytesHomogeneousInt32x10_a7.a0;
-  result += passStruct20BytesHomogeneousInt32x10_a7.a1;
-  result += passStruct20BytesHomogeneousInt32x10_a7.a2;
-  result += passStruct20BytesHomogeneousInt32x10_a7.a3;
-  result += passStruct20BytesHomogeneousInt32x10_a7.a4;
-  result += passStruct20BytesHomogeneousInt32x10_a8.a0;
-  result += passStruct20BytesHomogeneousInt32x10_a8.a1;
-  result += passStruct20BytesHomogeneousInt32x10_a8.a2;
-  result += passStruct20BytesHomogeneousInt32x10_a8.a3;
-  result += passStruct20BytesHomogeneousInt32x10_a8.a4;
-  result += passStruct20BytesHomogeneousInt32x10_a9.a0;
-  result += passStruct20BytesHomogeneousInt32x10_a9.a1;
-  result += passStruct20BytesHomogeneousInt32x10_a9.a2;
-  result += passStruct20BytesHomogeneousInt32x10_a9.a3;
-  result += passStruct20BytesHomogeneousInt32x10_a9.a4;
-
-  passStruct20BytesHomogeneousInt32x10Result = result;
-
-  return result;
-}
-
-/// Argument too big to go into integer registers on arm64.
-/// The arguments are passed as pointers to copies.
-/// The amount of arguments exhausts the number of integer registers, such that
-/// pointers to copies are also passed on the stack.
-int passStruct20BytesHomogeneousInt32x10(
-    Struct20BytesHomogeneousInt32 a0,
-    Struct20BytesHomogeneousInt32 a1,
-    Struct20BytesHomogeneousInt32 a2,
-    Struct20BytesHomogeneousInt32 a3,
-    Struct20BytesHomogeneousInt32 a4,
-    Struct20BytesHomogeneousInt32 a5,
-    Struct20BytesHomogeneousInt32 a6,
-    Struct20BytesHomogeneousInt32 a7,
-    Struct20BytesHomogeneousInt32 a8,
-    Struct20BytesHomogeneousInt32 a9) {
-  print(
-      "passStruct20BytesHomogeneousInt32x10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassStruct20BytesHomogeneousInt32x10 throwing on purpose!");
-  }
-
-  passStruct20BytesHomogeneousInt32x10_a0 = a0;
-  passStruct20BytesHomogeneousInt32x10_a1 = a1;
-  passStruct20BytesHomogeneousInt32x10_a2 = a2;
-  passStruct20BytesHomogeneousInt32x10_a3 = a3;
-  passStruct20BytesHomogeneousInt32x10_a4 = a4;
-  passStruct20BytesHomogeneousInt32x10_a5 = a5;
-  passStruct20BytesHomogeneousInt32x10_a6 = a6;
-  passStruct20BytesHomogeneousInt32x10_a7 = a7;
-  passStruct20BytesHomogeneousInt32x10_a8 = a8;
-  passStruct20BytesHomogeneousInt32x10_a9 = a9;
-
-  final result = passStruct20BytesHomogeneousInt32x10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct20BytesHomogeneousInt32x10AfterCallback() {
-  final result = passStruct20BytesHomogeneousInt32x10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(25, result);
-}
-
-typedef PassStruct20BytesHomogeneousFloatType = Float Function(
-    Struct20BytesHomogeneousFloat);
-
-// Global variables to be able to test inputs after callback returned.
-Struct20BytesHomogeneousFloat passStruct20BytesHomogeneousFloat_a0 =
-    Pointer<Struct20BytesHomogeneousFloat>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passStruct20BytesHomogeneousFloatResult = 0.0;
-
-double passStruct20BytesHomogeneousFloatCalculateResult() {
-  double result = 0;
-
-  result += passStruct20BytesHomogeneousFloat_a0.a0;
-  result += passStruct20BytesHomogeneousFloat_a0.a1;
-  result += passStruct20BytesHomogeneousFloat_a0.a2;
-  result += passStruct20BytesHomogeneousFloat_a0.a3;
-  result += passStruct20BytesHomogeneousFloat_a0.a4;
-
-  passStruct20BytesHomogeneousFloatResult = result;
-
-  return result;
-}
-
-/// Argument too big to go into FPU registers in hardfp and arm64.
-double passStruct20BytesHomogeneousFloat(Struct20BytesHomogeneousFloat a0) {
-  print("passStruct20BytesHomogeneousFloat(${a0})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct20BytesHomogeneousFloat throwing on purpose!");
-  }
-
-  passStruct20BytesHomogeneousFloat_a0 = a0;
-
-  final result = passStruct20BytesHomogeneousFloatCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct20BytesHomogeneousFloatAfterCallback() {
-  final result = passStruct20BytesHomogeneousFloatCalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(-3.0, result);
-}
-
-typedef PassStruct32BytesHomogeneousDoublex5Type = Double Function(
-    Struct32BytesHomogeneousDouble,
-    Struct32BytesHomogeneousDouble,
-    Struct32BytesHomogeneousDouble,
-    Struct32BytesHomogeneousDouble,
-    Struct32BytesHomogeneousDouble);
-
-// Global variables to be able to test inputs after callback returned.
-Struct32BytesHomogeneousDouble passStruct32BytesHomogeneousDoublex5_a0 =
-    Pointer<Struct32BytesHomogeneousDouble>.fromAddress(0).ref;
-Struct32BytesHomogeneousDouble passStruct32BytesHomogeneousDoublex5_a1 =
-    Pointer<Struct32BytesHomogeneousDouble>.fromAddress(0).ref;
-Struct32BytesHomogeneousDouble passStruct32BytesHomogeneousDoublex5_a2 =
-    Pointer<Struct32BytesHomogeneousDouble>.fromAddress(0).ref;
-Struct32BytesHomogeneousDouble passStruct32BytesHomogeneousDoublex5_a3 =
-    Pointer<Struct32BytesHomogeneousDouble>.fromAddress(0).ref;
-Struct32BytesHomogeneousDouble passStruct32BytesHomogeneousDoublex5_a4 =
-    Pointer<Struct32BytesHomogeneousDouble>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passStruct32BytesHomogeneousDoublex5Result = 0.0;
-
-double passStruct32BytesHomogeneousDoublex5CalculateResult() {
-  double result = 0;
-
-  result += passStruct32BytesHomogeneousDoublex5_a0.a0;
-  result += passStruct32BytesHomogeneousDoublex5_a0.a1;
-  result += passStruct32BytesHomogeneousDoublex5_a0.a2;
-  result += passStruct32BytesHomogeneousDoublex5_a0.a3;
-  result += passStruct32BytesHomogeneousDoublex5_a1.a0;
-  result += passStruct32BytesHomogeneousDoublex5_a1.a1;
-  result += passStruct32BytesHomogeneousDoublex5_a1.a2;
-  result += passStruct32BytesHomogeneousDoublex5_a1.a3;
-  result += passStruct32BytesHomogeneousDoublex5_a2.a0;
-  result += passStruct32BytesHomogeneousDoublex5_a2.a1;
-  result += passStruct32BytesHomogeneousDoublex5_a2.a2;
-  result += passStruct32BytesHomogeneousDoublex5_a2.a3;
-  result += passStruct32BytesHomogeneousDoublex5_a3.a0;
-  result += passStruct32BytesHomogeneousDoublex5_a3.a1;
-  result += passStruct32BytesHomogeneousDoublex5_a3.a2;
-  result += passStruct32BytesHomogeneousDoublex5_a3.a3;
-  result += passStruct32BytesHomogeneousDoublex5_a4.a0;
-  result += passStruct32BytesHomogeneousDoublex5_a4.a1;
-  result += passStruct32BytesHomogeneousDoublex5_a4.a2;
-  result += passStruct32BytesHomogeneousDoublex5_a4.a3;
-
-  passStruct32BytesHomogeneousDoublex5Result = result;
-
-  return result;
-}
-
-/// Arguments in FPU registers on arm64.
-/// 5 struct arguments will exhaust available registers.
-double passStruct32BytesHomogeneousDoublex5(
-    Struct32BytesHomogeneousDouble a0,
-    Struct32BytesHomogeneousDouble a1,
-    Struct32BytesHomogeneousDouble a2,
-    Struct32BytesHomogeneousDouble a3,
-    Struct32BytesHomogeneousDouble a4) {
-  print(
-      "passStruct32BytesHomogeneousDoublex5(${a0}, ${a1}, ${a2}, ${a3}, ${a4})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassStruct32BytesHomogeneousDoublex5 throwing on purpose!");
-  }
-
-  passStruct32BytesHomogeneousDoublex5_a0 = a0;
-  passStruct32BytesHomogeneousDoublex5_a1 = a1;
-  passStruct32BytesHomogeneousDoublex5_a2 = a2;
-  passStruct32BytesHomogeneousDoublex5_a3 = a3;
-  passStruct32BytesHomogeneousDoublex5_a4 = a4;
-
-  final result = passStruct32BytesHomogeneousDoublex5CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct32BytesHomogeneousDoublex5AfterCallback() {
-  final result = passStruct32BytesHomogeneousDoublex5CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(10.0, result);
-}
-
-typedef PassStruct40BytesHomogeneousDoubleType = Double Function(
-    Struct40BytesHomogeneousDouble);
-
-// Global variables to be able to test inputs after callback returned.
-Struct40BytesHomogeneousDouble passStruct40BytesHomogeneousDouble_a0 =
-    Pointer<Struct40BytesHomogeneousDouble>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passStruct40BytesHomogeneousDoubleResult = 0.0;
-
-double passStruct40BytesHomogeneousDoubleCalculateResult() {
-  double result = 0;
-
-  result += passStruct40BytesHomogeneousDouble_a0.a0;
-  result += passStruct40BytesHomogeneousDouble_a0.a1;
-  result += passStruct40BytesHomogeneousDouble_a0.a2;
-  result += passStruct40BytesHomogeneousDouble_a0.a3;
-  result += passStruct40BytesHomogeneousDouble_a0.a4;
-
-  passStruct40BytesHomogeneousDoubleResult = result;
-
-  return result;
-}
-
-/// Argument too big to go into FPU registers in arm64.
-double passStruct40BytesHomogeneousDouble(Struct40BytesHomogeneousDouble a0) {
-  print("passStruct40BytesHomogeneousDouble(${a0})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct40BytesHomogeneousDouble throwing on purpose!");
-  }
-
-  passStruct40BytesHomogeneousDouble_a0 = a0;
-
-  final result = passStruct40BytesHomogeneousDoubleCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct40BytesHomogeneousDoubleAfterCallback() {
-  final result = passStruct40BytesHomogeneousDoubleCalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(-3.0, result);
-}
-
-typedef PassStruct1024BytesHomogeneousUint64Type = Uint64 Function(
-    Struct1024BytesHomogeneousUint64);
-
-// Global variables to be able to test inputs after callback returned.
-Struct1024BytesHomogeneousUint64 passStruct1024BytesHomogeneousUint64_a0 =
-    Pointer<Struct1024BytesHomogeneousUint64>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStruct1024BytesHomogeneousUint64Result = 0;
-
-int passStruct1024BytesHomogeneousUint64CalculateResult() {
-  int result = 0;
-
-  result += passStruct1024BytesHomogeneousUint64_a0.a0;
-  result += passStruct1024BytesHomogeneousUint64_a0.a1;
-  result += passStruct1024BytesHomogeneousUint64_a0.a2;
-  result += passStruct1024BytesHomogeneousUint64_a0.a3;
-  result += passStruct1024BytesHomogeneousUint64_a0.a4;
-  result += passStruct1024BytesHomogeneousUint64_a0.a5;
-  result += passStruct1024BytesHomogeneousUint64_a0.a6;
-  result += passStruct1024BytesHomogeneousUint64_a0.a7;
-  result += passStruct1024BytesHomogeneousUint64_a0.a8;
-  result += passStruct1024BytesHomogeneousUint64_a0.a9;
-  result += passStruct1024BytesHomogeneousUint64_a0.a10;
-  result += passStruct1024BytesHomogeneousUint64_a0.a11;
-  result += passStruct1024BytesHomogeneousUint64_a0.a12;
-  result += passStruct1024BytesHomogeneousUint64_a0.a13;
-  result += passStruct1024BytesHomogeneousUint64_a0.a14;
-  result += passStruct1024BytesHomogeneousUint64_a0.a15;
-  result += passStruct1024BytesHomogeneousUint64_a0.a16;
-  result += passStruct1024BytesHomogeneousUint64_a0.a17;
-  result += passStruct1024BytesHomogeneousUint64_a0.a18;
-  result += passStruct1024BytesHomogeneousUint64_a0.a19;
-  result += passStruct1024BytesHomogeneousUint64_a0.a20;
-  result += passStruct1024BytesHomogeneousUint64_a0.a21;
-  result += passStruct1024BytesHomogeneousUint64_a0.a22;
-  result += passStruct1024BytesHomogeneousUint64_a0.a23;
-  result += passStruct1024BytesHomogeneousUint64_a0.a24;
-  result += passStruct1024BytesHomogeneousUint64_a0.a25;
-  result += passStruct1024BytesHomogeneousUint64_a0.a26;
-  result += passStruct1024BytesHomogeneousUint64_a0.a27;
-  result += passStruct1024BytesHomogeneousUint64_a0.a28;
-  result += passStruct1024BytesHomogeneousUint64_a0.a29;
-  result += passStruct1024BytesHomogeneousUint64_a0.a30;
-  result += passStruct1024BytesHomogeneousUint64_a0.a31;
-  result += passStruct1024BytesHomogeneousUint64_a0.a32;
-  result += passStruct1024BytesHomogeneousUint64_a0.a33;
-  result += passStruct1024BytesHomogeneousUint64_a0.a34;
-  result += passStruct1024BytesHomogeneousUint64_a0.a35;
-  result += passStruct1024BytesHomogeneousUint64_a0.a36;
-  result += passStruct1024BytesHomogeneousUint64_a0.a37;
-  result += passStruct1024BytesHomogeneousUint64_a0.a38;
-  result += passStruct1024BytesHomogeneousUint64_a0.a39;
-  result += passStruct1024BytesHomogeneousUint64_a0.a40;
-  result += passStruct1024BytesHomogeneousUint64_a0.a41;
-  result += passStruct1024BytesHomogeneousUint64_a0.a42;
-  result += passStruct1024BytesHomogeneousUint64_a0.a43;
-  result += passStruct1024BytesHomogeneousUint64_a0.a44;
-  result += passStruct1024BytesHomogeneousUint64_a0.a45;
-  result += passStruct1024BytesHomogeneousUint64_a0.a46;
-  result += passStruct1024BytesHomogeneousUint64_a0.a47;
-  result += passStruct1024BytesHomogeneousUint64_a0.a48;
-  result += passStruct1024BytesHomogeneousUint64_a0.a49;
-  result += passStruct1024BytesHomogeneousUint64_a0.a50;
-  result += passStruct1024BytesHomogeneousUint64_a0.a51;
-  result += passStruct1024BytesHomogeneousUint64_a0.a52;
-  result += passStruct1024BytesHomogeneousUint64_a0.a53;
-  result += passStruct1024BytesHomogeneousUint64_a0.a54;
-  result += passStruct1024BytesHomogeneousUint64_a0.a55;
-  result += passStruct1024BytesHomogeneousUint64_a0.a56;
-  result += passStruct1024BytesHomogeneousUint64_a0.a57;
-  result += passStruct1024BytesHomogeneousUint64_a0.a58;
-  result += passStruct1024BytesHomogeneousUint64_a0.a59;
-  result += passStruct1024BytesHomogeneousUint64_a0.a60;
-  result += passStruct1024BytesHomogeneousUint64_a0.a61;
-  result += passStruct1024BytesHomogeneousUint64_a0.a62;
-  result += passStruct1024BytesHomogeneousUint64_a0.a63;
-  result += passStruct1024BytesHomogeneousUint64_a0.a64;
-  result += passStruct1024BytesHomogeneousUint64_a0.a65;
-  result += passStruct1024BytesHomogeneousUint64_a0.a66;
-  result += passStruct1024BytesHomogeneousUint64_a0.a67;
-  result += passStruct1024BytesHomogeneousUint64_a0.a68;
-  result += passStruct1024BytesHomogeneousUint64_a0.a69;
-  result += passStruct1024BytesHomogeneousUint64_a0.a70;
-  result += passStruct1024BytesHomogeneousUint64_a0.a71;
-  result += passStruct1024BytesHomogeneousUint64_a0.a72;
-  result += passStruct1024BytesHomogeneousUint64_a0.a73;
-  result += passStruct1024BytesHomogeneousUint64_a0.a74;
-  result += passStruct1024BytesHomogeneousUint64_a0.a75;
-  result += passStruct1024BytesHomogeneousUint64_a0.a76;
-  result += passStruct1024BytesHomogeneousUint64_a0.a77;
-  result += passStruct1024BytesHomogeneousUint64_a0.a78;
-  result += passStruct1024BytesHomogeneousUint64_a0.a79;
-  result += passStruct1024BytesHomogeneousUint64_a0.a80;
-  result += passStruct1024BytesHomogeneousUint64_a0.a81;
-  result += passStruct1024BytesHomogeneousUint64_a0.a82;
-  result += passStruct1024BytesHomogeneousUint64_a0.a83;
-  result += passStruct1024BytesHomogeneousUint64_a0.a84;
-  result += passStruct1024BytesHomogeneousUint64_a0.a85;
-  result += passStruct1024BytesHomogeneousUint64_a0.a86;
-  result += passStruct1024BytesHomogeneousUint64_a0.a87;
-  result += passStruct1024BytesHomogeneousUint64_a0.a88;
-  result += passStruct1024BytesHomogeneousUint64_a0.a89;
-  result += passStruct1024BytesHomogeneousUint64_a0.a90;
-  result += passStruct1024BytesHomogeneousUint64_a0.a91;
-  result += passStruct1024BytesHomogeneousUint64_a0.a92;
-  result += passStruct1024BytesHomogeneousUint64_a0.a93;
-  result += passStruct1024BytesHomogeneousUint64_a0.a94;
-  result += passStruct1024BytesHomogeneousUint64_a0.a95;
-  result += passStruct1024BytesHomogeneousUint64_a0.a96;
-  result += passStruct1024BytesHomogeneousUint64_a0.a97;
-  result += passStruct1024BytesHomogeneousUint64_a0.a98;
-  result += passStruct1024BytesHomogeneousUint64_a0.a99;
-  result += passStruct1024BytesHomogeneousUint64_a0.a100;
-  result += passStruct1024BytesHomogeneousUint64_a0.a101;
-  result += passStruct1024BytesHomogeneousUint64_a0.a102;
-  result += passStruct1024BytesHomogeneousUint64_a0.a103;
-  result += passStruct1024BytesHomogeneousUint64_a0.a104;
-  result += passStruct1024BytesHomogeneousUint64_a0.a105;
-  result += passStruct1024BytesHomogeneousUint64_a0.a106;
-  result += passStruct1024BytesHomogeneousUint64_a0.a107;
-  result += passStruct1024BytesHomogeneousUint64_a0.a108;
-  result += passStruct1024BytesHomogeneousUint64_a0.a109;
-  result += passStruct1024BytesHomogeneousUint64_a0.a110;
-  result += passStruct1024BytesHomogeneousUint64_a0.a111;
-  result += passStruct1024BytesHomogeneousUint64_a0.a112;
-  result += passStruct1024BytesHomogeneousUint64_a0.a113;
-  result += passStruct1024BytesHomogeneousUint64_a0.a114;
-  result += passStruct1024BytesHomogeneousUint64_a0.a115;
-  result += passStruct1024BytesHomogeneousUint64_a0.a116;
-  result += passStruct1024BytesHomogeneousUint64_a0.a117;
-  result += passStruct1024BytesHomogeneousUint64_a0.a118;
-  result += passStruct1024BytesHomogeneousUint64_a0.a119;
-  result += passStruct1024BytesHomogeneousUint64_a0.a120;
-  result += passStruct1024BytesHomogeneousUint64_a0.a121;
-  result += passStruct1024BytesHomogeneousUint64_a0.a122;
-  result += passStruct1024BytesHomogeneousUint64_a0.a123;
-  result += passStruct1024BytesHomogeneousUint64_a0.a124;
-  result += passStruct1024BytesHomogeneousUint64_a0.a125;
-  result += passStruct1024BytesHomogeneousUint64_a0.a126;
-  result += passStruct1024BytesHomogeneousUint64_a0.a127;
-
-  passStruct1024BytesHomogeneousUint64Result = result;
-
-  return result;
-}
-
-/// Test 1kb struct.
-int passStruct1024BytesHomogeneousUint64(Struct1024BytesHomogeneousUint64 a0) {
-  print("passStruct1024BytesHomogeneousUint64(${a0})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassStruct1024BytesHomogeneousUint64 throwing on purpose!");
-  }
-
-  passStruct1024BytesHomogeneousUint64_a0 = a0;
-
-  final result = passStruct1024BytesHomogeneousUint64CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct1024BytesHomogeneousUint64AfterCallback() {
-  final result = passStruct1024BytesHomogeneousUint64CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(8256, result);
-}
-
-typedef PassFloatStruct16BytesHomogeneousFloatFloatStruct1Type = Float Function(
-    Float,
-    Struct16BytesHomogeneousFloat,
-    Float,
-    Struct16BytesHomogeneousFloat,
-    Float,
-    Struct16BytesHomogeneousFloat,
-    Float,
-    Struct16BytesHomogeneousFloat,
-    Float);
-
-// Global variables to be able to test inputs after callback returned.
-double passFloatStruct16BytesHomogeneousFloatFloatStruct1_a0 = 0.0;
-Struct16BytesHomogeneousFloat
-    passFloatStruct16BytesHomogeneousFloatFloatStruct1_a1 =
-    Pointer<Struct16BytesHomogeneousFloat>.fromAddress(0).ref;
-double passFloatStruct16BytesHomogeneousFloatFloatStruct1_a2 = 0.0;
-Struct16BytesHomogeneousFloat
-    passFloatStruct16BytesHomogeneousFloatFloatStruct1_a3 =
-    Pointer<Struct16BytesHomogeneousFloat>.fromAddress(0).ref;
-double passFloatStruct16BytesHomogeneousFloatFloatStruct1_a4 = 0.0;
-Struct16BytesHomogeneousFloat
-    passFloatStruct16BytesHomogeneousFloatFloatStruct1_a5 =
-    Pointer<Struct16BytesHomogeneousFloat>.fromAddress(0).ref;
-double passFloatStruct16BytesHomogeneousFloatFloatStruct1_a6 = 0.0;
-Struct16BytesHomogeneousFloat
-    passFloatStruct16BytesHomogeneousFloatFloatStruct1_a7 =
-    Pointer<Struct16BytesHomogeneousFloat>.fromAddress(0).ref;
-double passFloatStruct16BytesHomogeneousFloatFloatStruct1_a8 = 0.0;
-
-// Result variable also global, so we can delete it after the callback.
-double passFloatStruct16BytesHomogeneousFloatFloatStruct1Result = 0.0;
-
-double passFloatStruct16BytesHomogeneousFloatFloatStruct1CalculateResult() {
-  double result = 0;
-
-  result += passFloatStruct16BytesHomogeneousFloatFloatStruct1_a0;
-  result += passFloatStruct16BytesHomogeneousFloatFloatStruct1_a1.a0;
-  result += passFloatStruct16BytesHomogeneousFloatFloatStruct1_a1.a1;
-  result += passFloatStruct16BytesHomogeneousFloatFloatStruct1_a1.a2;
-  result += passFloatStruct16BytesHomogeneousFloatFloatStruct1_a1.a3;
-  result += passFloatStruct16BytesHomogeneousFloatFloatStruct1_a2;
-  result += passFloatStruct16BytesHomogeneousFloatFloatStruct1_a3.a0;
-  result += passFloatStruct16BytesHomogeneousFloatFloatStruct1_a3.a1;
-  result += passFloatStruct16BytesHomogeneousFloatFloatStruct1_a3.a2;
-  result += passFloatStruct16BytesHomogeneousFloatFloatStruct1_a3.a3;
-  result += passFloatStruct16BytesHomogeneousFloatFloatStruct1_a4;
-  result += passFloatStruct16BytesHomogeneousFloatFloatStruct1_a5.a0;
-  result += passFloatStruct16BytesHomogeneousFloatFloatStruct1_a5.a1;
-  result += passFloatStruct16BytesHomogeneousFloatFloatStruct1_a5.a2;
-  result += passFloatStruct16BytesHomogeneousFloatFloatStruct1_a5.a3;
-  result += passFloatStruct16BytesHomogeneousFloatFloatStruct1_a6;
-  result += passFloatStruct16BytesHomogeneousFloatFloatStruct1_a7.a0;
-  result += passFloatStruct16BytesHomogeneousFloatFloatStruct1_a7.a1;
-  result += passFloatStruct16BytesHomogeneousFloatFloatStruct1_a7.a2;
-  result += passFloatStruct16BytesHomogeneousFloatFloatStruct1_a7.a3;
-  result += passFloatStruct16BytesHomogeneousFloatFloatStruct1_a8;
-
-  passFloatStruct16BytesHomogeneousFloatFloatStruct1Result = result;
-
-  return result;
-}
-
-/// Tests the alignment of structs in FPU registers and backfilling.
-double passFloatStruct16BytesHomogeneousFloatFloatStruct1(
-    double a0,
-    Struct16BytesHomogeneousFloat a1,
-    double a2,
-    Struct16BytesHomogeneousFloat a3,
-    double a4,
-    Struct16BytesHomogeneousFloat a5,
-    double a6,
-    Struct16BytesHomogeneousFloat a7,
-    double a8) {
-  print(
-      "passFloatStruct16BytesHomogeneousFloatFloatStruct1(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassFloatStruct16BytesHomogeneousFloatFloatStruct1 throwing on purpose!");
-  }
-
-  passFloatStruct16BytesHomogeneousFloatFloatStruct1_a0 = a0;
-  passFloatStruct16BytesHomogeneousFloatFloatStruct1_a1 = a1;
-  passFloatStruct16BytesHomogeneousFloatFloatStruct1_a2 = a2;
-  passFloatStruct16BytesHomogeneousFloatFloatStruct1_a3 = a3;
-  passFloatStruct16BytesHomogeneousFloatFloatStruct1_a4 = a4;
-  passFloatStruct16BytesHomogeneousFloatFloatStruct1_a5 = a5;
-  passFloatStruct16BytesHomogeneousFloatFloatStruct1_a6 = a6;
-  passFloatStruct16BytesHomogeneousFloatFloatStruct1_a7 = a7;
-  passFloatStruct16BytesHomogeneousFloatFloatStruct1_a8 = a8;
-
-  final result =
-      passFloatStruct16BytesHomogeneousFloatFloatStruct1CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passFloatStruct16BytesHomogeneousFloatFloatStruct1AfterCallback() {
-  final result =
-      passFloatStruct16BytesHomogeneousFloatFloatStruct1CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(-11.0, result);
-}
-
-typedef PassFloatStruct32BytesHomogeneousDoubleFloatStructType
-    = Double Function(
-        Float,
-        Struct32BytesHomogeneousDouble,
-        Float,
-        Struct32BytesHomogeneousDouble,
-        Float,
-        Struct32BytesHomogeneousDouble,
-        Float,
-        Struct32BytesHomogeneousDouble,
-        Float);
-
-// Global variables to be able to test inputs after callback returned.
-double passFloatStruct32BytesHomogeneousDoubleFloatStruct_a0 = 0.0;
-Struct32BytesHomogeneousDouble
-    passFloatStruct32BytesHomogeneousDoubleFloatStruct_a1 =
-    Pointer<Struct32BytesHomogeneousDouble>.fromAddress(0).ref;
-double passFloatStruct32BytesHomogeneousDoubleFloatStruct_a2 = 0.0;
-Struct32BytesHomogeneousDouble
-    passFloatStruct32BytesHomogeneousDoubleFloatStruct_a3 =
-    Pointer<Struct32BytesHomogeneousDouble>.fromAddress(0).ref;
-double passFloatStruct32BytesHomogeneousDoubleFloatStruct_a4 = 0.0;
-Struct32BytesHomogeneousDouble
-    passFloatStruct32BytesHomogeneousDoubleFloatStruct_a5 =
-    Pointer<Struct32BytesHomogeneousDouble>.fromAddress(0).ref;
-double passFloatStruct32BytesHomogeneousDoubleFloatStruct_a6 = 0.0;
-Struct32BytesHomogeneousDouble
-    passFloatStruct32BytesHomogeneousDoubleFloatStruct_a7 =
-    Pointer<Struct32BytesHomogeneousDouble>.fromAddress(0).ref;
-double passFloatStruct32BytesHomogeneousDoubleFloatStruct_a8 = 0.0;
-
-// Result variable also global, so we can delete it after the callback.
-double passFloatStruct32BytesHomogeneousDoubleFloatStructResult = 0.0;
-
-double passFloatStruct32BytesHomogeneousDoubleFloatStructCalculateResult() {
-  double result = 0;
-
-  result += passFloatStruct32BytesHomogeneousDoubleFloatStruct_a0;
-  result += passFloatStruct32BytesHomogeneousDoubleFloatStruct_a1.a0;
-  result += passFloatStruct32BytesHomogeneousDoubleFloatStruct_a1.a1;
-  result += passFloatStruct32BytesHomogeneousDoubleFloatStruct_a1.a2;
-  result += passFloatStruct32BytesHomogeneousDoubleFloatStruct_a1.a3;
-  result += passFloatStruct32BytesHomogeneousDoubleFloatStruct_a2;
-  result += passFloatStruct32BytesHomogeneousDoubleFloatStruct_a3.a0;
-  result += passFloatStruct32BytesHomogeneousDoubleFloatStruct_a3.a1;
-  result += passFloatStruct32BytesHomogeneousDoubleFloatStruct_a3.a2;
-  result += passFloatStruct32BytesHomogeneousDoubleFloatStruct_a3.a3;
-  result += passFloatStruct32BytesHomogeneousDoubleFloatStruct_a4;
-  result += passFloatStruct32BytesHomogeneousDoubleFloatStruct_a5.a0;
-  result += passFloatStruct32BytesHomogeneousDoubleFloatStruct_a5.a1;
-  result += passFloatStruct32BytesHomogeneousDoubleFloatStruct_a5.a2;
-  result += passFloatStruct32BytesHomogeneousDoubleFloatStruct_a5.a3;
-  result += passFloatStruct32BytesHomogeneousDoubleFloatStruct_a6;
-  result += passFloatStruct32BytesHomogeneousDoubleFloatStruct_a7.a0;
-  result += passFloatStruct32BytesHomogeneousDoubleFloatStruct_a7.a1;
-  result += passFloatStruct32BytesHomogeneousDoubleFloatStruct_a7.a2;
-  result += passFloatStruct32BytesHomogeneousDoubleFloatStruct_a7.a3;
-  result += passFloatStruct32BytesHomogeneousDoubleFloatStruct_a8;
-
-  passFloatStruct32BytesHomogeneousDoubleFloatStructResult = result;
-
-  return result;
-}
-
-/// Tests the alignment of structs in FPU registers and backfilling.
-double passFloatStruct32BytesHomogeneousDoubleFloatStruct(
-    double a0,
-    Struct32BytesHomogeneousDouble a1,
-    double a2,
-    Struct32BytesHomogeneousDouble a3,
-    double a4,
-    Struct32BytesHomogeneousDouble a5,
-    double a6,
-    Struct32BytesHomogeneousDouble a7,
-    double a8) {
-  print(
-      "passFloatStruct32BytesHomogeneousDoubleFloatStruct(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassFloatStruct32BytesHomogeneousDoubleFloatStruct throwing on purpose!");
-  }
-
-  passFloatStruct32BytesHomogeneousDoubleFloatStruct_a0 = a0;
-  passFloatStruct32BytesHomogeneousDoubleFloatStruct_a1 = a1;
-  passFloatStruct32BytesHomogeneousDoubleFloatStruct_a2 = a2;
-  passFloatStruct32BytesHomogeneousDoubleFloatStruct_a3 = a3;
-  passFloatStruct32BytesHomogeneousDoubleFloatStruct_a4 = a4;
-  passFloatStruct32BytesHomogeneousDoubleFloatStruct_a5 = a5;
-  passFloatStruct32BytesHomogeneousDoubleFloatStruct_a6 = a6;
-  passFloatStruct32BytesHomogeneousDoubleFloatStruct_a7 = a7;
-  passFloatStruct32BytesHomogeneousDoubleFloatStruct_a8 = a8;
-
-  final result =
-      passFloatStruct32BytesHomogeneousDoubleFloatStructCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passFloatStruct32BytesHomogeneousDoubleFloatStructAfterCallback() {
-  final result =
-      passFloatStruct32BytesHomogeneousDoubleFloatStructCalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(-11.0, result);
-}
-
-typedef PassInt8Struct16BytesMixedInt8Struct16BytesMixedInType
-    = Double Function(Int8, Struct16BytesMixed, Int8, Struct16BytesMixed, Int8,
-        Struct16BytesMixed, Int8, Struct16BytesMixed, Int8);
-
-// Global variables to be able to test inputs after callback returned.
-int passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a0 = 0;
-Struct16BytesMixed passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a1 =
-    Pointer<Struct16BytesMixed>.fromAddress(0).ref;
-int passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a2 = 0;
-Struct16BytesMixed passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a3 =
-    Pointer<Struct16BytesMixed>.fromAddress(0).ref;
-int passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a4 = 0;
-Struct16BytesMixed passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a5 =
-    Pointer<Struct16BytesMixed>.fromAddress(0).ref;
-int passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a6 = 0;
-Struct16BytesMixed passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a7 =
-    Pointer<Struct16BytesMixed>.fromAddress(0).ref;
-int passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a8 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-double passInt8Struct16BytesMixedInt8Struct16BytesMixedInResult = 0.0;
-
-double passInt8Struct16BytesMixedInt8Struct16BytesMixedInCalculateResult() {
-  double result = 0;
-
-  result += passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a0;
-  result += passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a1.a0;
-  result += passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a1.a1;
-  result += passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a2;
-  result += passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a3.a0;
-  result += passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a3.a1;
-  result += passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a4;
-  result += passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a5.a0;
-  result += passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a5.a1;
-  result += passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a6;
-  result += passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a7.a0;
-  result += passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a7.a1;
-  result += passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a8;
-
-  passInt8Struct16BytesMixedInt8Struct16BytesMixedInResult = result;
-
-  return result;
-}
-
-/// Tests the alignment of structs in integers registers and on the stack.
-/// Arm32 aligns this struct at 8.
-/// Also, arm32 allocates the second struct partially in registers, partially
-/// on stack.
-/// Test backfilling of integer registers.
-double passInt8Struct16BytesMixedInt8Struct16BytesMixedIn(
-    int a0,
-    Struct16BytesMixed a1,
-    int a2,
-    Struct16BytesMixed a3,
-    int a4,
-    Struct16BytesMixed a5,
-    int a6,
-    Struct16BytesMixed a7,
-    int a8) {
-  print(
-      "passInt8Struct16BytesMixedInt8Struct16BytesMixedIn(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassInt8Struct16BytesMixedInt8Struct16BytesMixedIn throwing on purpose!");
-  }
-
-  passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a0 = a0;
-  passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a1 = a1;
-  passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a2 = a2;
-  passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a3 = a3;
-  passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a4 = a4;
-  passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a5 = a5;
-  passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a6 = a6;
-  passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a7 = a7;
-  passInt8Struct16BytesMixedInt8Struct16BytesMixedIn_a8 = a8;
-
-  final result =
-      passInt8Struct16BytesMixedInt8Struct16BytesMixedInCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passInt8Struct16BytesMixedInt8Struct16BytesMixedInAfterCallback() {
-  final result =
-      passInt8Struct16BytesMixedInt8Struct16BytesMixedInCalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(-7.0, result);
-}
-
-typedef PassDoublex6Struct16BytesMixedx4Int32Type = Double Function(
-    Double,
-    Double,
-    Double,
-    Double,
-    Double,
-    Double,
-    Struct16BytesMixed,
-    Struct16BytesMixed,
-    Struct16BytesMixed,
-    Struct16BytesMixed,
-    Int32);
-
-// Global variables to be able to test inputs after callback returned.
-double passDoublex6Struct16BytesMixedx4Int32_a0 = 0.0;
-double passDoublex6Struct16BytesMixedx4Int32_a1 = 0.0;
-double passDoublex6Struct16BytesMixedx4Int32_a2 = 0.0;
-double passDoublex6Struct16BytesMixedx4Int32_a3 = 0.0;
-double passDoublex6Struct16BytesMixedx4Int32_a4 = 0.0;
-double passDoublex6Struct16BytesMixedx4Int32_a5 = 0.0;
-Struct16BytesMixed passDoublex6Struct16BytesMixedx4Int32_a6 =
-    Pointer<Struct16BytesMixed>.fromAddress(0).ref;
-Struct16BytesMixed passDoublex6Struct16BytesMixedx4Int32_a7 =
-    Pointer<Struct16BytesMixed>.fromAddress(0).ref;
-Struct16BytesMixed passDoublex6Struct16BytesMixedx4Int32_a8 =
-    Pointer<Struct16BytesMixed>.fromAddress(0).ref;
-Struct16BytesMixed passDoublex6Struct16BytesMixedx4Int32_a9 =
-    Pointer<Struct16BytesMixed>.fromAddress(0).ref;
-int passDoublex6Struct16BytesMixedx4Int32_a10 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-double passDoublex6Struct16BytesMixedx4Int32Result = 0.0;
-
-double passDoublex6Struct16BytesMixedx4Int32CalculateResult() {
-  double result = 0;
-
-  result += passDoublex6Struct16BytesMixedx4Int32_a0;
-  result += passDoublex6Struct16BytesMixedx4Int32_a1;
-  result += passDoublex6Struct16BytesMixedx4Int32_a2;
-  result += passDoublex6Struct16BytesMixedx4Int32_a3;
-  result += passDoublex6Struct16BytesMixedx4Int32_a4;
-  result += passDoublex6Struct16BytesMixedx4Int32_a5;
-  result += passDoublex6Struct16BytesMixedx4Int32_a6.a0;
-  result += passDoublex6Struct16BytesMixedx4Int32_a6.a1;
-  result += passDoublex6Struct16BytesMixedx4Int32_a7.a0;
-  result += passDoublex6Struct16BytesMixedx4Int32_a7.a1;
-  result += passDoublex6Struct16BytesMixedx4Int32_a8.a0;
-  result += passDoublex6Struct16BytesMixedx4Int32_a8.a1;
-  result += passDoublex6Struct16BytesMixedx4Int32_a9.a0;
-  result += passDoublex6Struct16BytesMixedx4Int32_a9.a1;
-  result += passDoublex6Struct16BytesMixedx4Int32_a10;
-
-  passDoublex6Struct16BytesMixedx4Int32Result = result;
-
-  return result;
-}
-
-/// On Linux x64, it will exhaust xmm registers first, after 6 doubles and 2
-/// structs. The rest of the structs will go on the stack.
-/// The int will be backfilled into the int register.
-double passDoublex6Struct16BytesMixedx4Int32(
-    double a0,
-    double a1,
-    double a2,
-    double a3,
-    double a4,
-    double a5,
-    Struct16BytesMixed a6,
-    Struct16BytesMixed a7,
-    Struct16BytesMixed a8,
-    Struct16BytesMixed a9,
-    int a10) {
-  print(
-      "passDoublex6Struct16BytesMixedx4Int32(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9}, ${a10})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassDoublex6Struct16BytesMixedx4Int32 throwing on purpose!");
-  }
-
-  passDoublex6Struct16BytesMixedx4Int32_a0 = a0;
-  passDoublex6Struct16BytesMixedx4Int32_a1 = a1;
-  passDoublex6Struct16BytesMixedx4Int32_a2 = a2;
-  passDoublex6Struct16BytesMixedx4Int32_a3 = a3;
-  passDoublex6Struct16BytesMixedx4Int32_a4 = a4;
-  passDoublex6Struct16BytesMixedx4Int32_a5 = a5;
-  passDoublex6Struct16BytesMixedx4Int32_a6 = a6;
-  passDoublex6Struct16BytesMixedx4Int32_a7 = a7;
-  passDoublex6Struct16BytesMixedx4Int32_a8 = a8;
-  passDoublex6Struct16BytesMixedx4Int32_a9 = a9;
-  passDoublex6Struct16BytesMixedx4Int32_a10 = a10;
-
-  final result = passDoublex6Struct16BytesMixedx4Int32CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passDoublex6Struct16BytesMixedx4Int32AfterCallback() {
-  final result = passDoublex6Struct16BytesMixedx4Int32CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(-8.0, result);
-}
-
-typedef PassInt32x4Struct16BytesMixedx4DoubleType = Double Function(
-    Int32,
-    Int32,
-    Int32,
-    Int32,
-    Struct16BytesMixed,
-    Struct16BytesMixed,
-    Struct16BytesMixed,
-    Struct16BytesMixed,
-    Double);
-
-// Global variables to be able to test inputs after callback returned.
-int passInt32x4Struct16BytesMixedx4Double_a0 = 0;
-int passInt32x4Struct16BytesMixedx4Double_a1 = 0;
-int passInt32x4Struct16BytesMixedx4Double_a2 = 0;
-int passInt32x4Struct16BytesMixedx4Double_a3 = 0;
-Struct16BytesMixed passInt32x4Struct16BytesMixedx4Double_a4 =
-    Pointer<Struct16BytesMixed>.fromAddress(0).ref;
-Struct16BytesMixed passInt32x4Struct16BytesMixedx4Double_a5 =
-    Pointer<Struct16BytesMixed>.fromAddress(0).ref;
-Struct16BytesMixed passInt32x4Struct16BytesMixedx4Double_a6 =
-    Pointer<Struct16BytesMixed>.fromAddress(0).ref;
-Struct16BytesMixed passInt32x4Struct16BytesMixedx4Double_a7 =
-    Pointer<Struct16BytesMixed>.fromAddress(0).ref;
-double passInt32x4Struct16BytesMixedx4Double_a8 = 0.0;
-
-// Result variable also global, so we can delete it after the callback.
-double passInt32x4Struct16BytesMixedx4DoubleResult = 0.0;
-
-double passInt32x4Struct16BytesMixedx4DoubleCalculateResult() {
-  double result = 0;
-
-  result += passInt32x4Struct16BytesMixedx4Double_a0;
-  result += passInt32x4Struct16BytesMixedx4Double_a1;
-  result += passInt32x4Struct16BytesMixedx4Double_a2;
-  result += passInt32x4Struct16BytesMixedx4Double_a3;
-  result += passInt32x4Struct16BytesMixedx4Double_a4.a0;
-  result += passInt32x4Struct16BytesMixedx4Double_a4.a1;
-  result += passInt32x4Struct16BytesMixedx4Double_a5.a0;
-  result += passInt32x4Struct16BytesMixedx4Double_a5.a1;
-  result += passInt32x4Struct16BytesMixedx4Double_a6.a0;
-  result += passInt32x4Struct16BytesMixedx4Double_a6.a1;
-  result += passInt32x4Struct16BytesMixedx4Double_a7.a0;
-  result += passInt32x4Struct16BytesMixedx4Double_a7.a1;
-  result += passInt32x4Struct16BytesMixedx4Double_a8;
-
-  passInt32x4Struct16BytesMixedx4DoubleResult = result;
-
-  return result;
-}
-
-/// On Linux x64, it will exhaust int registers first.
-/// The rest of the structs will go on the stack.
-/// The double will be backfilled into the xmm register.
-double passInt32x4Struct16BytesMixedx4Double(
-    int a0,
-    int a1,
-    int a2,
-    int a3,
-    Struct16BytesMixed a4,
-    Struct16BytesMixed a5,
-    Struct16BytesMixed a6,
-    Struct16BytesMixed a7,
-    double a8) {
-  print(
-      "passInt32x4Struct16BytesMixedx4Double(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassInt32x4Struct16BytesMixedx4Double throwing on purpose!");
-  }
-
-  passInt32x4Struct16BytesMixedx4Double_a0 = a0;
-  passInt32x4Struct16BytesMixedx4Double_a1 = a1;
-  passInt32x4Struct16BytesMixedx4Double_a2 = a2;
-  passInt32x4Struct16BytesMixedx4Double_a3 = a3;
-  passInt32x4Struct16BytesMixedx4Double_a4 = a4;
-  passInt32x4Struct16BytesMixedx4Double_a5 = a5;
-  passInt32x4Struct16BytesMixedx4Double_a6 = a6;
-  passInt32x4Struct16BytesMixedx4Double_a7 = a7;
-  passInt32x4Struct16BytesMixedx4Double_a8 = a8;
-
-  final result = passInt32x4Struct16BytesMixedx4DoubleCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passInt32x4Struct16BytesMixedx4DoubleAfterCallback() {
-  final result = passInt32x4Struct16BytesMixedx4DoubleCalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(-7.0, result);
-}
-
-typedef PassStruct40BytesHomogeneousDoubleStruct4BytesHomoType
-    = Double Function(Struct40BytesHomogeneousDouble,
-        Struct4BytesHomogeneousInt16, Struct8BytesHomogeneousFloat);
-
-// Global variables to be able to test inputs after callback returned.
-Struct40BytesHomogeneousDouble
-    passStruct40BytesHomogeneousDoubleStruct4BytesHomo_a0 =
-    Pointer<Struct40BytesHomogeneousDouble>.fromAddress(0).ref;
-Struct4BytesHomogeneousInt16
-    passStruct40BytesHomogeneousDoubleStruct4BytesHomo_a1 =
-    Pointer<Struct4BytesHomogeneousInt16>.fromAddress(0).ref;
-Struct8BytesHomogeneousFloat
-    passStruct40BytesHomogeneousDoubleStruct4BytesHomo_a2 =
-    Pointer<Struct8BytesHomogeneousFloat>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passStruct40BytesHomogeneousDoubleStruct4BytesHomoResult = 0.0;
-
-double passStruct40BytesHomogeneousDoubleStruct4BytesHomoCalculateResult() {
-  double result = 0;
-
-  result += passStruct40BytesHomogeneousDoubleStruct4BytesHomo_a0.a0;
-  result += passStruct40BytesHomogeneousDoubleStruct4BytesHomo_a0.a1;
-  result += passStruct40BytesHomogeneousDoubleStruct4BytesHomo_a0.a2;
-  result += passStruct40BytesHomogeneousDoubleStruct4BytesHomo_a0.a3;
-  result += passStruct40BytesHomogeneousDoubleStruct4BytesHomo_a0.a4;
-  result += passStruct40BytesHomogeneousDoubleStruct4BytesHomo_a1.a0;
-  result += passStruct40BytesHomogeneousDoubleStruct4BytesHomo_a1.a1;
-  result += passStruct40BytesHomogeneousDoubleStruct4BytesHomo_a2.a0;
-  result += passStruct40BytesHomogeneousDoubleStruct4BytesHomo_a2.a1;
-
-  passStruct40BytesHomogeneousDoubleStruct4BytesHomoResult = result;
-
-  return result;
-}
-
-/// On various architectures, first struct is allocated on stack.
-/// Check that the other two arguments are allocated on registers.
-double passStruct40BytesHomogeneousDoubleStruct4BytesHomo(
-    Struct40BytesHomogeneousDouble a0,
-    Struct4BytesHomogeneousInt16 a1,
-    Struct8BytesHomogeneousFloat a2) {
-  print(
-      "passStruct40BytesHomogeneousDoubleStruct4BytesHomo(${a0}, ${a1}, ${a2})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassStruct40BytesHomogeneousDoubleStruct4BytesHomo throwing on purpose!");
-  }
-
-  passStruct40BytesHomogeneousDoubleStruct4BytesHomo_a0 = a0;
-  passStruct40BytesHomogeneousDoubleStruct4BytesHomo_a1 = a1;
-  passStruct40BytesHomogeneousDoubleStruct4BytesHomo_a2 = a2;
-
-  final result =
-      passStruct40BytesHomogeneousDoubleStruct4BytesHomoCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct40BytesHomogeneousDoubleStruct4BytesHomoAfterCallback() {
-  final result =
-      passStruct40BytesHomogeneousDoubleStruct4BytesHomoCalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(-5.0, result);
-}
-
-typedef PassInt32x8Doublex8Int64Int8Struct1ByteIntInt64IntType
-    = Double Function(
-        Int32,
-        Int32,
-        Int32,
-        Int32,
-        Int32,
-        Int32,
-        Int32,
-        Int32,
-        Double,
-        Double,
-        Double,
-        Double,
-        Double,
-        Double,
-        Double,
-        Double,
-        Int64,
-        Int8,
-        Struct1ByteInt,
-        Int64,
-        Int8,
-        Struct4BytesHomogeneousInt16,
-        Int64,
-        Int8,
-        Struct8BytesInt,
-        Int64,
-        Int8,
-        Struct8BytesHomogeneousFloat,
-        Int64,
-        Int8,
-        Struct8BytesMixed,
-        Int64,
-        Int8,
-        StructAlignmentInt16,
-        Int64,
-        Int8,
-        StructAlignmentInt32,
-        Int64,
-        Int8,
-        StructAlignmentInt64);
-
-// Global variables to be able to test inputs after callback returned.
-int passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a0 = 0;
-int passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a1 = 0;
-int passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a2 = 0;
-int passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a3 = 0;
-int passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a4 = 0;
-int passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a5 = 0;
-int passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a6 = 0;
-int passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a7 = 0;
-double passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a8 = 0.0;
-double passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a9 = 0.0;
-double passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a10 = 0.0;
-double passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a11 = 0.0;
-double passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a12 = 0.0;
-double passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a13 = 0.0;
-double passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a14 = 0.0;
-double passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a15 = 0.0;
-int passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a16 = 0;
-int passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a17 = 0;
-Struct1ByteInt passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a18 =
-    Pointer<Struct1ByteInt>.fromAddress(0).ref;
-int passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a19 = 0;
-int passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a20 = 0;
-Struct4BytesHomogeneousInt16
-    passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a21 =
-    Pointer<Struct4BytesHomogeneousInt16>.fromAddress(0).ref;
-int passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a22 = 0;
-int passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a23 = 0;
-Struct8BytesInt passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a24 =
-    Pointer<Struct8BytesInt>.fromAddress(0).ref;
-int passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a25 = 0;
-int passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a26 = 0;
-Struct8BytesHomogeneousFloat
-    passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a27 =
-    Pointer<Struct8BytesHomogeneousFloat>.fromAddress(0).ref;
-int passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a28 = 0;
-int passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a29 = 0;
-Struct8BytesMixed passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a30 =
-    Pointer<Struct8BytesMixed>.fromAddress(0).ref;
-int passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a31 = 0;
-int passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a32 = 0;
-StructAlignmentInt16 passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a33 =
-    Pointer<StructAlignmentInt16>.fromAddress(0).ref;
-int passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a34 = 0;
-int passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a35 = 0;
-StructAlignmentInt32 passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a36 =
-    Pointer<StructAlignmentInt32>.fromAddress(0).ref;
-int passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a37 = 0;
-int passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a38 = 0;
-StructAlignmentInt64 passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a39 =
-    Pointer<StructAlignmentInt64>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passInt32x8Doublex8Int64Int8Struct1ByteIntInt64IntResult = 0.0;
-
-double passInt32x8Doublex8Int64Int8Struct1ByteIntInt64IntCalculateResult() {
-  double result = 0;
-
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a0;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a1;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a2;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a3;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a4;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a5;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a6;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a7;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a8;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a9;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a10;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a11;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a12;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a13;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a14;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a15;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a16;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a17;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a18.a0;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a19;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a20;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a21.a0;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a21.a1;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a22;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a23;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a24.a0;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a24.a1;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a24.a2;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a25;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a26;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a27.a0;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a27.a1;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a28;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a29;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a30.a0;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a30.a1;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a30.a2;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a31;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a32;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a33.a0;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a33.a1;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a33.a2;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a34;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a35;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a36.a0;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a36.a1;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a36.a2;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a37;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a38;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a39.a0;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a39.a1;
-  result += passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a39.a2;
-
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64IntResult = result;
-
-  return result;
-}
-
-/// Test alignment and padding of 16 byte int within struct.
-double passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int(
-    int a0,
-    int a1,
-    int a2,
-    int a3,
-    int a4,
-    int a5,
-    int a6,
-    int a7,
-    double a8,
-    double a9,
-    double a10,
-    double a11,
-    double a12,
-    double a13,
-    double a14,
-    double a15,
-    int a16,
-    int a17,
-    Struct1ByteInt a18,
-    int a19,
-    int a20,
-    Struct4BytesHomogeneousInt16 a21,
-    int a22,
-    int a23,
-    Struct8BytesInt a24,
-    int a25,
-    int a26,
-    Struct8BytesHomogeneousFloat a27,
-    int a28,
-    int a29,
-    Struct8BytesMixed a30,
-    int a31,
-    int a32,
-    StructAlignmentInt16 a33,
-    int a34,
-    int a35,
-    StructAlignmentInt32 a36,
-    int a37,
-    int a38,
-    StructAlignmentInt64 a39) {
-  print(
-      "passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9}, ${a10}, ${a11}, ${a12}, ${a13}, ${a14}, ${a15}, ${a16}, ${a17}, ${a18}, ${a19}, ${a20}, ${a21}, ${a22}, ${a23}, ${a24}, ${a25}, ${a26}, ${a27}, ${a28}, ${a29}, ${a30}, ${a31}, ${a32}, ${a33}, ${a34}, ${a35}, ${a36}, ${a37}, ${a38}, ${a39})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int throwing on purpose!");
-  }
-
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a0 = a0;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a1 = a1;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a2 = a2;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a3 = a3;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a4 = a4;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a5 = a5;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a6 = a6;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a7 = a7;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a8 = a8;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a9 = a9;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a10 = a10;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a11 = a11;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a12 = a12;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a13 = a13;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a14 = a14;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a15 = a15;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a16 = a16;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a17 = a17;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a18 = a18;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a19 = a19;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a20 = a20;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a21 = a21;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a22 = a22;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a23 = a23;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a24 = a24;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a25 = a25;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a26 = a26;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a27 = a27;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a28 = a28;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a29 = a29;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a30 = a30;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a31 = a31;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a32 = a32;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a33 = a33;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a34 = a34;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a35 = a35;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a36 = a36;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a37 = a37;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a38 = a38;
-  passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int_a39 = a39;
-
-  final result =
-      passInt32x8Doublex8Int64Int8Struct1ByteIntInt64IntCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passInt32x8Doublex8Int64Int8Struct1ByteIntInt64IntAfterCallback() {
-  final result =
-      passInt32x8Doublex8Int64Int8Struct1ByteIntInt64IntCalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(26.0, result);
-}
-
-typedef PassStructAlignmentInt16Type = Int64 Function(StructAlignmentInt16);
-
-// Global variables to be able to test inputs after callback returned.
-StructAlignmentInt16 passStructAlignmentInt16_a0 =
-    Pointer<StructAlignmentInt16>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStructAlignmentInt16Result = 0;
-
-int passStructAlignmentInt16CalculateResult() {
-  int result = 0;
-
-  result += passStructAlignmentInt16_a0.a0;
-  result += passStructAlignmentInt16_a0.a1;
-  result += passStructAlignmentInt16_a0.a2;
-
-  passStructAlignmentInt16Result = result;
-
-  return result;
-}
-
-/// Test alignment and padding of 16 byte int within struct.
-int passStructAlignmentInt16(StructAlignmentInt16 a0) {
-  print("passStructAlignmentInt16(${a0})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStructAlignmentInt16 throwing on purpose!");
-  }
-
-  passStructAlignmentInt16_a0 = a0;
-
-  final result = passStructAlignmentInt16CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStructAlignmentInt16AfterCallback() {
-  final result = passStructAlignmentInt16CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(-2, result);
-}
-
-typedef PassStructAlignmentInt32Type = Int64 Function(StructAlignmentInt32);
-
-// Global variables to be able to test inputs after callback returned.
-StructAlignmentInt32 passStructAlignmentInt32_a0 =
-    Pointer<StructAlignmentInt32>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStructAlignmentInt32Result = 0;
-
-int passStructAlignmentInt32CalculateResult() {
-  int result = 0;
-
-  result += passStructAlignmentInt32_a0.a0;
-  result += passStructAlignmentInt32_a0.a1;
-  result += passStructAlignmentInt32_a0.a2;
-
-  passStructAlignmentInt32Result = result;
-
-  return result;
-}
-
-/// Test alignment and padding of 32 byte int within struct.
-int passStructAlignmentInt32(StructAlignmentInt32 a0) {
-  print("passStructAlignmentInt32(${a0})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStructAlignmentInt32 throwing on purpose!");
-  }
-
-  passStructAlignmentInt32_a0 = a0;
-
-  final result = passStructAlignmentInt32CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStructAlignmentInt32AfterCallback() {
-  final result = passStructAlignmentInt32CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(-2, result);
-}
-
-typedef PassStructAlignmentInt64Type = Int64 Function(StructAlignmentInt64);
-
-// Global variables to be able to test inputs after callback returned.
-StructAlignmentInt64 passStructAlignmentInt64_a0 =
-    Pointer<StructAlignmentInt64>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStructAlignmentInt64Result = 0;
-
-int passStructAlignmentInt64CalculateResult() {
-  int result = 0;
-
-  result += passStructAlignmentInt64_a0.a0;
-  result += passStructAlignmentInt64_a0.a1;
-  result += passStructAlignmentInt64_a0.a2;
-
-  passStructAlignmentInt64Result = result;
-
-  return result;
-}
-
-/// Test alignment and padding of 64 byte int within struct.
-int passStructAlignmentInt64(StructAlignmentInt64 a0) {
-  print("passStructAlignmentInt64(${a0})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStructAlignmentInt64 throwing on purpose!");
-  }
-
-  passStructAlignmentInt64_a0 = a0;
-
-  final result = passStructAlignmentInt64CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStructAlignmentInt64AfterCallback() {
-  final result = passStructAlignmentInt64CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(-2, result);
-}
-
-typedef PassStruct8BytesNestedIntx10Type = Int64 Function(
-    Struct8BytesNestedInt,
-    Struct8BytesNestedInt,
-    Struct8BytesNestedInt,
-    Struct8BytesNestedInt,
-    Struct8BytesNestedInt,
-    Struct8BytesNestedInt,
-    Struct8BytesNestedInt,
-    Struct8BytesNestedInt,
-    Struct8BytesNestedInt,
-    Struct8BytesNestedInt);
-
-// Global variables to be able to test inputs after callback returned.
-Struct8BytesNestedInt passStruct8BytesNestedIntx10_a0 =
-    Pointer<Struct8BytesNestedInt>.fromAddress(0).ref;
-Struct8BytesNestedInt passStruct8BytesNestedIntx10_a1 =
-    Pointer<Struct8BytesNestedInt>.fromAddress(0).ref;
-Struct8BytesNestedInt passStruct8BytesNestedIntx10_a2 =
-    Pointer<Struct8BytesNestedInt>.fromAddress(0).ref;
-Struct8BytesNestedInt passStruct8BytesNestedIntx10_a3 =
-    Pointer<Struct8BytesNestedInt>.fromAddress(0).ref;
-Struct8BytesNestedInt passStruct8BytesNestedIntx10_a4 =
-    Pointer<Struct8BytesNestedInt>.fromAddress(0).ref;
-Struct8BytesNestedInt passStruct8BytesNestedIntx10_a5 =
-    Pointer<Struct8BytesNestedInt>.fromAddress(0).ref;
-Struct8BytesNestedInt passStruct8BytesNestedIntx10_a6 =
-    Pointer<Struct8BytesNestedInt>.fromAddress(0).ref;
-Struct8BytesNestedInt passStruct8BytesNestedIntx10_a7 =
-    Pointer<Struct8BytesNestedInt>.fromAddress(0).ref;
-Struct8BytesNestedInt passStruct8BytesNestedIntx10_a8 =
-    Pointer<Struct8BytesNestedInt>.fromAddress(0).ref;
-Struct8BytesNestedInt passStruct8BytesNestedIntx10_a9 =
-    Pointer<Struct8BytesNestedInt>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStruct8BytesNestedIntx10Result = 0;
-
-int passStruct8BytesNestedIntx10CalculateResult() {
-  int result = 0;
-
-  result += passStruct8BytesNestedIntx10_a0.a0.a0;
-  result += passStruct8BytesNestedIntx10_a0.a0.a1;
-  result += passStruct8BytesNestedIntx10_a0.a1.a0;
-  result += passStruct8BytesNestedIntx10_a0.a1.a1;
-  result += passStruct8BytesNestedIntx10_a1.a0.a0;
-  result += passStruct8BytesNestedIntx10_a1.a0.a1;
-  result += passStruct8BytesNestedIntx10_a1.a1.a0;
-  result += passStruct8BytesNestedIntx10_a1.a1.a1;
-  result += passStruct8BytesNestedIntx10_a2.a0.a0;
-  result += passStruct8BytesNestedIntx10_a2.a0.a1;
-  result += passStruct8BytesNestedIntx10_a2.a1.a0;
-  result += passStruct8BytesNestedIntx10_a2.a1.a1;
-  result += passStruct8BytesNestedIntx10_a3.a0.a0;
-  result += passStruct8BytesNestedIntx10_a3.a0.a1;
-  result += passStruct8BytesNestedIntx10_a3.a1.a0;
-  result += passStruct8BytesNestedIntx10_a3.a1.a1;
-  result += passStruct8BytesNestedIntx10_a4.a0.a0;
-  result += passStruct8BytesNestedIntx10_a4.a0.a1;
-  result += passStruct8BytesNestedIntx10_a4.a1.a0;
-  result += passStruct8BytesNestedIntx10_a4.a1.a1;
-  result += passStruct8BytesNestedIntx10_a5.a0.a0;
-  result += passStruct8BytesNestedIntx10_a5.a0.a1;
-  result += passStruct8BytesNestedIntx10_a5.a1.a0;
-  result += passStruct8BytesNestedIntx10_a5.a1.a1;
-  result += passStruct8BytesNestedIntx10_a6.a0.a0;
-  result += passStruct8BytesNestedIntx10_a6.a0.a1;
-  result += passStruct8BytesNestedIntx10_a6.a1.a0;
-  result += passStruct8BytesNestedIntx10_a6.a1.a1;
-  result += passStruct8BytesNestedIntx10_a7.a0.a0;
-  result += passStruct8BytesNestedIntx10_a7.a0.a1;
-  result += passStruct8BytesNestedIntx10_a7.a1.a0;
-  result += passStruct8BytesNestedIntx10_a7.a1.a1;
-  result += passStruct8BytesNestedIntx10_a8.a0.a0;
-  result += passStruct8BytesNestedIntx10_a8.a0.a1;
-  result += passStruct8BytesNestedIntx10_a8.a1.a0;
-  result += passStruct8BytesNestedIntx10_a8.a1.a1;
-  result += passStruct8BytesNestedIntx10_a9.a0.a0;
-  result += passStruct8BytesNestedIntx10_a9.a0.a1;
-  result += passStruct8BytesNestedIntx10_a9.a1.a0;
-  result += passStruct8BytesNestedIntx10_a9.a1.a1;
-
-  passStruct8BytesNestedIntx10Result = result;
-
-  return result;
-}
-
-/// Simple nested struct. No alignment gaps on any architectures.
-/// 10 arguments exhaust registers on all platforms.
-int passStruct8BytesNestedIntx10(
-    Struct8BytesNestedInt a0,
-    Struct8BytesNestedInt a1,
-    Struct8BytesNestedInt a2,
-    Struct8BytesNestedInt a3,
-    Struct8BytesNestedInt a4,
-    Struct8BytesNestedInt a5,
-    Struct8BytesNestedInt a6,
-    Struct8BytesNestedInt a7,
-    Struct8BytesNestedInt a8,
-    Struct8BytesNestedInt a9) {
-  print(
-      "passStruct8BytesNestedIntx10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0.a0 == 42 || a0.a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct8BytesNestedIntx10 throwing on purpose!");
-  }
-
-  passStruct8BytesNestedIntx10_a0 = a0;
-  passStruct8BytesNestedIntx10_a1 = a1;
-  passStruct8BytesNestedIntx10_a2 = a2;
-  passStruct8BytesNestedIntx10_a3 = a3;
-  passStruct8BytesNestedIntx10_a4 = a4;
-  passStruct8BytesNestedIntx10_a5 = a5;
-  passStruct8BytesNestedIntx10_a6 = a6;
-  passStruct8BytesNestedIntx10_a7 = a7;
-  passStruct8BytesNestedIntx10_a8 = a8;
-  passStruct8BytesNestedIntx10_a9 = a9;
-
-  final result = passStruct8BytesNestedIntx10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct8BytesNestedIntx10AfterCallback() {
-  final result = passStruct8BytesNestedIntx10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(20, result);
-}
-
-typedef PassStruct8BytesNestedFloatx10Type = Float Function(
-    Struct8BytesNestedFloat,
-    Struct8BytesNestedFloat,
-    Struct8BytesNestedFloat,
-    Struct8BytesNestedFloat,
-    Struct8BytesNestedFloat,
-    Struct8BytesNestedFloat,
-    Struct8BytesNestedFloat,
-    Struct8BytesNestedFloat,
-    Struct8BytesNestedFloat,
-    Struct8BytesNestedFloat);
-
-// Global variables to be able to test inputs after callback returned.
-Struct8BytesNestedFloat passStruct8BytesNestedFloatx10_a0 =
-    Pointer<Struct8BytesNestedFloat>.fromAddress(0).ref;
-Struct8BytesNestedFloat passStruct8BytesNestedFloatx10_a1 =
-    Pointer<Struct8BytesNestedFloat>.fromAddress(0).ref;
-Struct8BytesNestedFloat passStruct8BytesNestedFloatx10_a2 =
-    Pointer<Struct8BytesNestedFloat>.fromAddress(0).ref;
-Struct8BytesNestedFloat passStruct8BytesNestedFloatx10_a3 =
-    Pointer<Struct8BytesNestedFloat>.fromAddress(0).ref;
-Struct8BytesNestedFloat passStruct8BytesNestedFloatx10_a4 =
-    Pointer<Struct8BytesNestedFloat>.fromAddress(0).ref;
-Struct8BytesNestedFloat passStruct8BytesNestedFloatx10_a5 =
-    Pointer<Struct8BytesNestedFloat>.fromAddress(0).ref;
-Struct8BytesNestedFloat passStruct8BytesNestedFloatx10_a6 =
-    Pointer<Struct8BytesNestedFloat>.fromAddress(0).ref;
-Struct8BytesNestedFloat passStruct8BytesNestedFloatx10_a7 =
-    Pointer<Struct8BytesNestedFloat>.fromAddress(0).ref;
-Struct8BytesNestedFloat passStruct8BytesNestedFloatx10_a8 =
-    Pointer<Struct8BytesNestedFloat>.fromAddress(0).ref;
-Struct8BytesNestedFloat passStruct8BytesNestedFloatx10_a9 =
-    Pointer<Struct8BytesNestedFloat>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passStruct8BytesNestedFloatx10Result = 0.0;
-
-double passStruct8BytesNestedFloatx10CalculateResult() {
-  double result = 0;
-
-  result += passStruct8BytesNestedFloatx10_a0.a0.a0;
-  result += passStruct8BytesNestedFloatx10_a0.a1.a0;
-  result += passStruct8BytesNestedFloatx10_a1.a0.a0;
-  result += passStruct8BytesNestedFloatx10_a1.a1.a0;
-  result += passStruct8BytesNestedFloatx10_a2.a0.a0;
-  result += passStruct8BytesNestedFloatx10_a2.a1.a0;
-  result += passStruct8BytesNestedFloatx10_a3.a0.a0;
-  result += passStruct8BytesNestedFloatx10_a3.a1.a0;
-  result += passStruct8BytesNestedFloatx10_a4.a0.a0;
-  result += passStruct8BytesNestedFloatx10_a4.a1.a0;
-  result += passStruct8BytesNestedFloatx10_a5.a0.a0;
-  result += passStruct8BytesNestedFloatx10_a5.a1.a0;
-  result += passStruct8BytesNestedFloatx10_a6.a0.a0;
-  result += passStruct8BytesNestedFloatx10_a6.a1.a0;
-  result += passStruct8BytesNestedFloatx10_a7.a0.a0;
-  result += passStruct8BytesNestedFloatx10_a7.a1.a0;
-  result += passStruct8BytesNestedFloatx10_a8.a0.a0;
-  result += passStruct8BytesNestedFloatx10_a8.a1.a0;
-  result += passStruct8BytesNestedFloatx10_a9.a0.a0;
-  result += passStruct8BytesNestedFloatx10_a9.a1.a0;
-
-  passStruct8BytesNestedFloatx10Result = result;
-
-  return result;
-}
-
-/// Simple nested struct. No alignment gaps on any architectures.
-/// 10 arguments exhaust fpu registers on all platforms.
-double passStruct8BytesNestedFloatx10(
-    Struct8BytesNestedFloat a0,
-    Struct8BytesNestedFloat a1,
-    Struct8BytesNestedFloat a2,
-    Struct8BytesNestedFloat a3,
-    Struct8BytesNestedFloat a4,
-    Struct8BytesNestedFloat a5,
-    Struct8BytesNestedFloat a6,
-    Struct8BytesNestedFloat a7,
-    Struct8BytesNestedFloat a8,
-    Struct8BytesNestedFloat a9) {
-  print(
-      "passStruct8BytesNestedFloatx10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0.a0 == 42 || a0.a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct8BytesNestedFloatx10 throwing on purpose!");
-  }
-
-  passStruct8BytesNestedFloatx10_a0 = a0;
-  passStruct8BytesNestedFloatx10_a1 = a1;
-  passStruct8BytesNestedFloatx10_a2 = a2;
-  passStruct8BytesNestedFloatx10_a3 = a3;
-  passStruct8BytesNestedFloatx10_a4 = a4;
-  passStruct8BytesNestedFloatx10_a5 = a5;
-  passStruct8BytesNestedFloatx10_a6 = a6;
-  passStruct8BytesNestedFloatx10_a7 = a7;
-  passStruct8BytesNestedFloatx10_a8 = a8;
-  passStruct8BytesNestedFloatx10_a9 = a9;
-
-  final result = passStruct8BytesNestedFloatx10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct8BytesNestedFloatx10AfterCallback() {
-  final result = passStruct8BytesNestedFloatx10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(10.0, result);
-}
-
-typedef PassStruct8BytesNestedFloat2x10Type = Float Function(
-    Struct8BytesNestedFloat2,
-    Struct8BytesNestedFloat2,
-    Struct8BytesNestedFloat2,
-    Struct8BytesNestedFloat2,
-    Struct8BytesNestedFloat2,
-    Struct8BytesNestedFloat2,
-    Struct8BytesNestedFloat2,
-    Struct8BytesNestedFloat2,
-    Struct8BytesNestedFloat2,
-    Struct8BytesNestedFloat2);
-
-// Global variables to be able to test inputs after callback returned.
-Struct8BytesNestedFloat2 passStruct8BytesNestedFloat2x10_a0 =
-    Pointer<Struct8BytesNestedFloat2>.fromAddress(0).ref;
-Struct8BytesNestedFloat2 passStruct8BytesNestedFloat2x10_a1 =
-    Pointer<Struct8BytesNestedFloat2>.fromAddress(0).ref;
-Struct8BytesNestedFloat2 passStruct8BytesNestedFloat2x10_a2 =
-    Pointer<Struct8BytesNestedFloat2>.fromAddress(0).ref;
-Struct8BytesNestedFloat2 passStruct8BytesNestedFloat2x10_a3 =
-    Pointer<Struct8BytesNestedFloat2>.fromAddress(0).ref;
-Struct8BytesNestedFloat2 passStruct8BytesNestedFloat2x10_a4 =
-    Pointer<Struct8BytesNestedFloat2>.fromAddress(0).ref;
-Struct8BytesNestedFloat2 passStruct8BytesNestedFloat2x10_a5 =
-    Pointer<Struct8BytesNestedFloat2>.fromAddress(0).ref;
-Struct8BytesNestedFloat2 passStruct8BytesNestedFloat2x10_a6 =
-    Pointer<Struct8BytesNestedFloat2>.fromAddress(0).ref;
-Struct8BytesNestedFloat2 passStruct8BytesNestedFloat2x10_a7 =
-    Pointer<Struct8BytesNestedFloat2>.fromAddress(0).ref;
-Struct8BytesNestedFloat2 passStruct8BytesNestedFloat2x10_a8 =
-    Pointer<Struct8BytesNestedFloat2>.fromAddress(0).ref;
-Struct8BytesNestedFloat2 passStruct8BytesNestedFloat2x10_a9 =
-    Pointer<Struct8BytesNestedFloat2>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passStruct8BytesNestedFloat2x10Result = 0.0;
-
-double passStruct8BytesNestedFloat2x10CalculateResult() {
-  double result = 0;
-
-  result += passStruct8BytesNestedFloat2x10_a0.a0.a0;
-  result += passStruct8BytesNestedFloat2x10_a0.a1;
-  result += passStruct8BytesNestedFloat2x10_a1.a0.a0;
-  result += passStruct8BytesNestedFloat2x10_a1.a1;
-  result += passStruct8BytesNestedFloat2x10_a2.a0.a0;
-  result += passStruct8BytesNestedFloat2x10_a2.a1;
-  result += passStruct8BytesNestedFloat2x10_a3.a0.a0;
-  result += passStruct8BytesNestedFloat2x10_a3.a1;
-  result += passStruct8BytesNestedFloat2x10_a4.a0.a0;
-  result += passStruct8BytesNestedFloat2x10_a4.a1;
-  result += passStruct8BytesNestedFloat2x10_a5.a0.a0;
-  result += passStruct8BytesNestedFloat2x10_a5.a1;
-  result += passStruct8BytesNestedFloat2x10_a6.a0.a0;
-  result += passStruct8BytesNestedFloat2x10_a6.a1;
-  result += passStruct8BytesNestedFloat2x10_a7.a0.a0;
-  result += passStruct8BytesNestedFloat2x10_a7.a1;
-  result += passStruct8BytesNestedFloat2x10_a8.a0.a0;
-  result += passStruct8BytesNestedFloat2x10_a8.a1;
-  result += passStruct8BytesNestedFloat2x10_a9.a0.a0;
-  result += passStruct8BytesNestedFloat2x10_a9.a1;
-
-  passStruct8BytesNestedFloat2x10Result = result;
-
-  return result;
-}
-
-/// Simple nested struct. No alignment gaps on any architectures.
-/// 10 arguments exhaust fpu registers on all platforms.
-/// The nesting is irregular, testing homogenous float rules on arm and arm64,
-/// and the fpu register usage on x64.
-double passStruct8BytesNestedFloat2x10(
-    Struct8BytesNestedFloat2 a0,
-    Struct8BytesNestedFloat2 a1,
-    Struct8BytesNestedFloat2 a2,
-    Struct8BytesNestedFloat2 a3,
-    Struct8BytesNestedFloat2 a4,
-    Struct8BytesNestedFloat2 a5,
-    Struct8BytesNestedFloat2 a6,
-    Struct8BytesNestedFloat2 a7,
-    Struct8BytesNestedFloat2 a8,
-    Struct8BytesNestedFloat2 a9) {
-  print(
-      "passStruct8BytesNestedFloat2x10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0.a0 == 42 || a0.a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct8BytesNestedFloat2x10 throwing on purpose!");
-  }
-
-  passStruct8BytesNestedFloat2x10_a0 = a0;
-  passStruct8BytesNestedFloat2x10_a1 = a1;
-  passStruct8BytesNestedFloat2x10_a2 = a2;
-  passStruct8BytesNestedFloat2x10_a3 = a3;
-  passStruct8BytesNestedFloat2x10_a4 = a4;
-  passStruct8BytesNestedFloat2x10_a5 = a5;
-  passStruct8BytesNestedFloat2x10_a6 = a6;
-  passStruct8BytesNestedFloat2x10_a7 = a7;
-  passStruct8BytesNestedFloat2x10_a8 = a8;
-  passStruct8BytesNestedFloat2x10_a9 = a9;
-
-  final result = passStruct8BytesNestedFloat2x10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct8BytesNestedFloat2x10AfterCallback() {
-  final result = passStruct8BytesNestedFloat2x10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(10.0, result);
-}
-
-typedef PassStruct8BytesNestedMixedx10Type = Double Function(
-    Struct8BytesNestedMixed,
-    Struct8BytesNestedMixed,
-    Struct8BytesNestedMixed,
-    Struct8BytesNestedMixed,
-    Struct8BytesNestedMixed,
-    Struct8BytesNestedMixed,
-    Struct8BytesNestedMixed,
-    Struct8BytesNestedMixed,
-    Struct8BytesNestedMixed,
-    Struct8BytesNestedMixed);
-
-// Global variables to be able to test inputs after callback returned.
-Struct8BytesNestedMixed passStruct8BytesNestedMixedx10_a0 =
-    Pointer<Struct8BytesNestedMixed>.fromAddress(0).ref;
-Struct8BytesNestedMixed passStruct8BytesNestedMixedx10_a1 =
-    Pointer<Struct8BytesNestedMixed>.fromAddress(0).ref;
-Struct8BytesNestedMixed passStruct8BytesNestedMixedx10_a2 =
-    Pointer<Struct8BytesNestedMixed>.fromAddress(0).ref;
-Struct8BytesNestedMixed passStruct8BytesNestedMixedx10_a3 =
-    Pointer<Struct8BytesNestedMixed>.fromAddress(0).ref;
-Struct8BytesNestedMixed passStruct8BytesNestedMixedx10_a4 =
-    Pointer<Struct8BytesNestedMixed>.fromAddress(0).ref;
-Struct8BytesNestedMixed passStruct8BytesNestedMixedx10_a5 =
-    Pointer<Struct8BytesNestedMixed>.fromAddress(0).ref;
-Struct8BytesNestedMixed passStruct8BytesNestedMixedx10_a6 =
-    Pointer<Struct8BytesNestedMixed>.fromAddress(0).ref;
-Struct8BytesNestedMixed passStruct8BytesNestedMixedx10_a7 =
-    Pointer<Struct8BytesNestedMixed>.fromAddress(0).ref;
-Struct8BytesNestedMixed passStruct8BytesNestedMixedx10_a8 =
-    Pointer<Struct8BytesNestedMixed>.fromAddress(0).ref;
-Struct8BytesNestedMixed passStruct8BytesNestedMixedx10_a9 =
-    Pointer<Struct8BytesNestedMixed>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passStruct8BytesNestedMixedx10Result = 0.0;
-
-double passStruct8BytesNestedMixedx10CalculateResult() {
-  double result = 0;
-
-  result += passStruct8BytesNestedMixedx10_a0.a0.a0;
-  result += passStruct8BytesNestedMixedx10_a0.a0.a1;
-  result += passStruct8BytesNestedMixedx10_a0.a1.a0;
-  result += passStruct8BytesNestedMixedx10_a1.a0.a0;
-  result += passStruct8BytesNestedMixedx10_a1.a0.a1;
-  result += passStruct8BytesNestedMixedx10_a1.a1.a0;
-  result += passStruct8BytesNestedMixedx10_a2.a0.a0;
-  result += passStruct8BytesNestedMixedx10_a2.a0.a1;
-  result += passStruct8BytesNestedMixedx10_a2.a1.a0;
-  result += passStruct8BytesNestedMixedx10_a3.a0.a0;
-  result += passStruct8BytesNestedMixedx10_a3.a0.a1;
-  result += passStruct8BytesNestedMixedx10_a3.a1.a0;
-  result += passStruct8BytesNestedMixedx10_a4.a0.a0;
-  result += passStruct8BytesNestedMixedx10_a4.a0.a1;
-  result += passStruct8BytesNestedMixedx10_a4.a1.a0;
-  result += passStruct8BytesNestedMixedx10_a5.a0.a0;
-  result += passStruct8BytesNestedMixedx10_a5.a0.a1;
-  result += passStruct8BytesNestedMixedx10_a5.a1.a0;
-  result += passStruct8BytesNestedMixedx10_a6.a0.a0;
-  result += passStruct8BytesNestedMixedx10_a6.a0.a1;
-  result += passStruct8BytesNestedMixedx10_a6.a1.a0;
-  result += passStruct8BytesNestedMixedx10_a7.a0.a0;
-  result += passStruct8BytesNestedMixedx10_a7.a0.a1;
-  result += passStruct8BytesNestedMixedx10_a7.a1.a0;
-  result += passStruct8BytesNestedMixedx10_a8.a0.a0;
-  result += passStruct8BytesNestedMixedx10_a8.a0.a1;
-  result += passStruct8BytesNestedMixedx10_a8.a1.a0;
-  result += passStruct8BytesNestedMixedx10_a9.a0.a0;
-  result += passStruct8BytesNestedMixedx10_a9.a0.a1;
-  result += passStruct8BytesNestedMixedx10_a9.a1.a0;
-
-  passStruct8BytesNestedMixedx10Result = result;
-
-  return result;
-}
-
-/// Simple nested struct. No alignment gaps on any architectures.
-/// 10 arguments exhaust all registers on all platforms.
-double passStruct8BytesNestedMixedx10(
-    Struct8BytesNestedMixed a0,
-    Struct8BytesNestedMixed a1,
-    Struct8BytesNestedMixed a2,
-    Struct8BytesNestedMixed a3,
-    Struct8BytesNestedMixed a4,
-    Struct8BytesNestedMixed a5,
-    Struct8BytesNestedMixed a6,
-    Struct8BytesNestedMixed a7,
-    Struct8BytesNestedMixed a8,
-    Struct8BytesNestedMixed a9) {
-  print(
-      "passStruct8BytesNestedMixedx10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0.a0 == 42 || a0.a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct8BytesNestedMixedx10 throwing on purpose!");
-  }
-
-  passStruct8BytesNestedMixedx10_a0 = a0;
-  passStruct8BytesNestedMixedx10_a1 = a1;
-  passStruct8BytesNestedMixedx10_a2 = a2;
-  passStruct8BytesNestedMixedx10_a3 = a3;
-  passStruct8BytesNestedMixedx10_a4 = a4;
-  passStruct8BytesNestedMixedx10_a5 = a5;
-  passStruct8BytesNestedMixedx10_a6 = a6;
-  passStruct8BytesNestedMixedx10_a7 = a7;
-  passStruct8BytesNestedMixedx10_a8 = a8;
-  passStruct8BytesNestedMixedx10_a9 = a9;
-
-  final result = passStruct8BytesNestedMixedx10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct8BytesNestedMixedx10AfterCallback() {
-  final result = passStruct8BytesNestedMixedx10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(15.0, result);
-}
-
-typedef PassStruct16BytesNestedIntx2Type = Int64 Function(
-    Struct16BytesNestedInt, Struct16BytesNestedInt);
-
-// Global variables to be able to test inputs after callback returned.
-Struct16BytesNestedInt passStruct16BytesNestedIntx2_a0 =
-    Pointer<Struct16BytesNestedInt>.fromAddress(0).ref;
-Struct16BytesNestedInt passStruct16BytesNestedIntx2_a1 =
-    Pointer<Struct16BytesNestedInt>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStruct16BytesNestedIntx2Result = 0;
-
-int passStruct16BytesNestedIntx2CalculateResult() {
-  int result = 0;
-
-  result += passStruct16BytesNestedIntx2_a0.a0.a0.a0;
-  result += passStruct16BytesNestedIntx2_a0.a0.a0.a1;
-  result += passStruct16BytesNestedIntx2_a0.a0.a1.a0;
-  result += passStruct16BytesNestedIntx2_a0.a0.a1.a1;
-  result += passStruct16BytesNestedIntx2_a0.a1.a0.a0;
-  result += passStruct16BytesNestedIntx2_a0.a1.a0.a1;
-  result += passStruct16BytesNestedIntx2_a0.a1.a1.a0;
-  result += passStruct16BytesNestedIntx2_a0.a1.a1.a1;
-  result += passStruct16BytesNestedIntx2_a1.a0.a0.a0;
-  result += passStruct16BytesNestedIntx2_a1.a0.a0.a1;
-  result += passStruct16BytesNestedIntx2_a1.a0.a1.a0;
-  result += passStruct16BytesNestedIntx2_a1.a0.a1.a1;
-  result += passStruct16BytesNestedIntx2_a1.a1.a0.a0;
-  result += passStruct16BytesNestedIntx2_a1.a1.a0.a1;
-  result += passStruct16BytesNestedIntx2_a1.a1.a1.a0;
-  result += passStruct16BytesNestedIntx2_a1.a1.a1.a1;
-
-  passStruct16BytesNestedIntx2Result = result;
-
-  return result;
-}
-
-/// Deeper nested struct to test recursive member access.
-int passStruct16BytesNestedIntx2(
-    Struct16BytesNestedInt a0, Struct16BytesNestedInt a1) {
-  print("passStruct16BytesNestedIntx2(${a0}, ${a1})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0.a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0.a0.a0 == 42 || a0.a0.a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct16BytesNestedIntx2 throwing on purpose!");
-  }
-
-  passStruct16BytesNestedIntx2_a0 = a0;
-  passStruct16BytesNestedIntx2_a1 = a1;
-
-  final result = passStruct16BytesNestedIntx2CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct16BytesNestedIntx2AfterCallback() {
-  final result = passStruct16BytesNestedIntx2CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(8, result);
-}
-
-typedef PassStruct32BytesNestedIntx2Type = Int64 Function(
-    Struct32BytesNestedInt, Struct32BytesNestedInt);
-
-// Global variables to be able to test inputs after callback returned.
-Struct32BytesNestedInt passStruct32BytesNestedIntx2_a0 =
-    Pointer<Struct32BytesNestedInt>.fromAddress(0).ref;
-Struct32BytesNestedInt passStruct32BytesNestedIntx2_a1 =
-    Pointer<Struct32BytesNestedInt>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStruct32BytesNestedIntx2Result = 0;
-
-int passStruct32BytesNestedIntx2CalculateResult() {
-  int result = 0;
-
-  result += passStruct32BytesNestedIntx2_a0.a0.a0.a0.a0;
-  result += passStruct32BytesNestedIntx2_a0.a0.a0.a0.a1;
-  result += passStruct32BytesNestedIntx2_a0.a0.a0.a1.a0;
-  result += passStruct32BytesNestedIntx2_a0.a0.a0.a1.a1;
-  result += passStruct32BytesNestedIntx2_a0.a0.a1.a0.a0;
-  result += passStruct32BytesNestedIntx2_a0.a0.a1.a0.a1;
-  result += passStruct32BytesNestedIntx2_a0.a0.a1.a1.a0;
-  result += passStruct32BytesNestedIntx2_a0.a0.a1.a1.a1;
-  result += passStruct32BytesNestedIntx2_a0.a1.a0.a0.a0;
-  result += passStruct32BytesNestedIntx2_a0.a1.a0.a0.a1;
-  result += passStruct32BytesNestedIntx2_a0.a1.a0.a1.a0;
-  result += passStruct32BytesNestedIntx2_a0.a1.a0.a1.a1;
-  result += passStruct32BytesNestedIntx2_a0.a1.a1.a0.a0;
-  result += passStruct32BytesNestedIntx2_a0.a1.a1.a0.a1;
-  result += passStruct32BytesNestedIntx2_a0.a1.a1.a1.a0;
-  result += passStruct32BytesNestedIntx2_a0.a1.a1.a1.a1;
-  result += passStruct32BytesNestedIntx2_a1.a0.a0.a0.a0;
-  result += passStruct32BytesNestedIntx2_a1.a0.a0.a0.a1;
-  result += passStruct32BytesNestedIntx2_a1.a0.a0.a1.a0;
-  result += passStruct32BytesNestedIntx2_a1.a0.a0.a1.a1;
-  result += passStruct32BytesNestedIntx2_a1.a0.a1.a0.a0;
-  result += passStruct32BytesNestedIntx2_a1.a0.a1.a0.a1;
-  result += passStruct32BytesNestedIntx2_a1.a0.a1.a1.a0;
-  result += passStruct32BytesNestedIntx2_a1.a0.a1.a1.a1;
-  result += passStruct32BytesNestedIntx2_a1.a1.a0.a0.a0;
-  result += passStruct32BytesNestedIntx2_a1.a1.a0.a0.a1;
-  result += passStruct32BytesNestedIntx2_a1.a1.a0.a1.a0;
-  result += passStruct32BytesNestedIntx2_a1.a1.a0.a1.a1;
-  result += passStruct32BytesNestedIntx2_a1.a1.a1.a0.a0;
-  result += passStruct32BytesNestedIntx2_a1.a1.a1.a0.a1;
-  result += passStruct32BytesNestedIntx2_a1.a1.a1.a1.a0;
-  result += passStruct32BytesNestedIntx2_a1.a1.a1.a1.a1;
-
-  passStruct32BytesNestedIntx2Result = result;
-
-  return result;
-}
-
-/// Even deeper nested struct to test recursive member access.
-int passStruct32BytesNestedIntx2(
-    Struct32BytesNestedInt a0, Struct32BytesNestedInt a1) {
-  print("passStruct32BytesNestedIntx2(${a0}, ${a1})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0.a0.a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0.a0.a0.a0 == 42 || a0.a0.a0.a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct32BytesNestedIntx2 throwing on purpose!");
-  }
-
-  passStruct32BytesNestedIntx2_a0 = a0;
-  passStruct32BytesNestedIntx2_a1 = a1;
-
-  final result = passStruct32BytesNestedIntx2CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct32BytesNestedIntx2AfterCallback() {
-  final result = passStruct32BytesNestedIntx2CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(16, result);
-}
-
-typedef PassStructNestedIntStructAlignmentInt16Type = Int64 Function(
-    StructNestedIntStructAlignmentInt16);
-
-// Global variables to be able to test inputs after callback returned.
-StructNestedIntStructAlignmentInt16 passStructNestedIntStructAlignmentInt16_a0 =
-    Pointer<StructNestedIntStructAlignmentInt16>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStructNestedIntStructAlignmentInt16Result = 0;
-
-int passStructNestedIntStructAlignmentInt16CalculateResult() {
-  int result = 0;
-
-  result += passStructNestedIntStructAlignmentInt16_a0.a0.a0;
-  result += passStructNestedIntStructAlignmentInt16_a0.a0.a1;
-  result += passStructNestedIntStructAlignmentInt16_a0.a0.a2;
-  result += passStructNestedIntStructAlignmentInt16_a0.a1.a0;
-  result += passStructNestedIntStructAlignmentInt16_a0.a1.a1;
-  result += passStructNestedIntStructAlignmentInt16_a0.a1.a2;
-
-  passStructNestedIntStructAlignmentInt16Result = result;
-
-  return result;
-}
-
-/// Test alignment and padding of nested struct with 16 byte int.
-int passStructNestedIntStructAlignmentInt16(
-    StructNestedIntStructAlignmentInt16 a0) {
-  print("passStructNestedIntStructAlignmentInt16(${a0})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0.a0 == 42 || a0.a0.a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassStructNestedIntStructAlignmentInt16 throwing on purpose!");
-  }
-
-  passStructNestedIntStructAlignmentInt16_a0 = a0;
-
-  final result = passStructNestedIntStructAlignmentInt16CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStructNestedIntStructAlignmentInt16AfterCallback() {
-  final result = passStructNestedIntStructAlignmentInt16CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(3, result);
-}
-
-typedef PassStructNestedIntStructAlignmentInt32Type = Int64 Function(
-    StructNestedIntStructAlignmentInt32);
-
-// Global variables to be able to test inputs after callback returned.
-StructNestedIntStructAlignmentInt32 passStructNestedIntStructAlignmentInt32_a0 =
-    Pointer<StructNestedIntStructAlignmentInt32>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStructNestedIntStructAlignmentInt32Result = 0;
-
-int passStructNestedIntStructAlignmentInt32CalculateResult() {
-  int result = 0;
-
-  result += passStructNestedIntStructAlignmentInt32_a0.a0.a0;
-  result += passStructNestedIntStructAlignmentInt32_a0.a0.a1;
-  result += passStructNestedIntStructAlignmentInt32_a0.a0.a2;
-  result += passStructNestedIntStructAlignmentInt32_a0.a1.a0;
-  result += passStructNestedIntStructAlignmentInt32_a0.a1.a1;
-  result += passStructNestedIntStructAlignmentInt32_a0.a1.a2;
-
-  passStructNestedIntStructAlignmentInt32Result = result;
-
-  return result;
-}
-
-/// Test alignment and padding of nested struct with 32 byte int.
-int passStructNestedIntStructAlignmentInt32(
-    StructNestedIntStructAlignmentInt32 a0) {
-  print("passStructNestedIntStructAlignmentInt32(${a0})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0.a0 == 42 || a0.a0.a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassStructNestedIntStructAlignmentInt32 throwing on purpose!");
-  }
-
-  passStructNestedIntStructAlignmentInt32_a0 = a0;
-
-  final result = passStructNestedIntStructAlignmentInt32CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStructNestedIntStructAlignmentInt32AfterCallback() {
-  final result = passStructNestedIntStructAlignmentInt32CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(3, result);
-}
-
-typedef PassStructNestedIntStructAlignmentInt64Type = Int64 Function(
-    StructNestedIntStructAlignmentInt64);
-
-// Global variables to be able to test inputs after callback returned.
-StructNestedIntStructAlignmentInt64 passStructNestedIntStructAlignmentInt64_a0 =
-    Pointer<StructNestedIntStructAlignmentInt64>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStructNestedIntStructAlignmentInt64Result = 0;
-
-int passStructNestedIntStructAlignmentInt64CalculateResult() {
-  int result = 0;
-
-  result += passStructNestedIntStructAlignmentInt64_a0.a0.a0;
-  result += passStructNestedIntStructAlignmentInt64_a0.a0.a1;
-  result += passStructNestedIntStructAlignmentInt64_a0.a0.a2;
-  result += passStructNestedIntStructAlignmentInt64_a0.a1.a0;
-  result += passStructNestedIntStructAlignmentInt64_a0.a1.a1;
-  result += passStructNestedIntStructAlignmentInt64_a0.a1.a2;
-
-  passStructNestedIntStructAlignmentInt64Result = result;
-
-  return result;
-}
-
-/// Test alignment and padding of nested struct with 64 byte int.
-int passStructNestedIntStructAlignmentInt64(
-    StructNestedIntStructAlignmentInt64 a0) {
-  print("passStructNestedIntStructAlignmentInt64(${a0})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0.a0 == 42 || a0.a0.a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassStructNestedIntStructAlignmentInt64 throwing on purpose!");
-  }
-
-  passStructNestedIntStructAlignmentInt64_a0 = a0;
-
-  final result = passStructNestedIntStructAlignmentInt64CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStructNestedIntStructAlignmentInt64AfterCallback() {
-  final result = passStructNestedIntStructAlignmentInt64CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(3, result);
-}
-
-typedef PassStructNestedIrregularEvenBiggerx4Type = Double Function(
-    StructNestedIrregularEvenBigger,
-    StructNestedIrregularEvenBigger,
-    StructNestedIrregularEvenBigger,
-    StructNestedIrregularEvenBigger);
-
-// Global variables to be able to test inputs after callback returned.
-StructNestedIrregularEvenBigger passStructNestedIrregularEvenBiggerx4_a0 =
-    Pointer<StructNestedIrregularEvenBigger>.fromAddress(0).ref;
-StructNestedIrregularEvenBigger passStructNestedIrregularEvenBiggerx4_a1 =
-    Pointer<StructNestedIrregularEvenBigger>.fromAddress(0).ref;
-StructNestedIrregularEvenBigger passStructNestedIrregularEvenBiggerx4_a2 =
-    Pointer<StructNestedIrregularEvenBigger>.fromAddress(0).ref;
-StructNestedIrregularEvenBigger passStructNestedIrregularEvenBiggerx4_a3 =
-    Pointer<StructNestedIrregularEvenBigger>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passStructNestedIrregularEvenBiggerx4Result = 0.0;
-
-double passStructNestedIrregularEvenBiggerx4CalculateResult() {
-  double result = 0;
-
-  result += passStructNestedIrregularEvenBiggerx4_a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a1.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a1.a0.a1.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a1.a0.a1.a0.a1;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a1.a0.a1.a1.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a1.a0.a2;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a1.a0.a3.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a1.a0.a3.a1;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a1.a0.a4;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a1.a0.a5.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a1.a0.a5.a1.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a1.a0.a6;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a1.a1.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a1.a1.a0.a1;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a1.a1.a1.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a1.a2;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a1.a3;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a2.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a2.a0.a1.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a2.a0.a1.a0.a1;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a2.a0.a1.a1.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a2.a0.a2;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a2.a0.a3.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a2.a0.a3.a1;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a2.a0.a4;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a2.a0.a5.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a2.a0.a5.a1.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a2.a0.a6;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a2.a1.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a2.a1.a0.a1;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a2.a1.a1.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a2.a2;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a2.a3;
-  result += passStructNestedIrregularEvenBiggerx4_a0.a3;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a1.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a1.a0.a1.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a1.a0.a1.a0.a1;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a1.a0.a1.a1.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a1.a0.a2;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a1.a0.a3.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a1.a0.a3.a1;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a1.a0.a4;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a1.a0.a5.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a1.a0.a5.a1.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a1.a0.a6;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a1.a1.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a1.a1.a0.a1;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a1.a1.a1.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a1.a2;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a1.a3;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a2.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a2.a0.a1.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a2.a0.a1.a0.a1;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a2.a0.a1.a1.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a2.a0.a2;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a2.a0.a3.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a2.a0.a3.a1;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a2.a0.a4;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a2.a0.a5.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a2.a0.a5.a1.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a2.a0.a6;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a2.a1.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a2.a1.a0.a1;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a2.a1.a1.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a2.a2;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a2.a3;
-  result += passStructNestedIrregularEvenBiggerx4_a1.a3;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a1.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a1.a0.a1.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a1.a0.a1.a0.a1;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a1.a0.a1.a1.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a1.a0.a2;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a1.a0.a3.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a1.a0.a3.a1;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a1.a0.a4;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a1.a0.a5.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a1.a0.a5.a1.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a1.a0.a6;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a1.a1.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a1.a1.a0.a1;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a1.a1.a1.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a1.a2;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a1.a3;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a2.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a2.a0.a1.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a2.a0.a1.a0.a1;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a2.a0.a1.a1.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a2.a0.a2;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a2.a0.a3.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a2.a0.a3.a1;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a2.a0.a4;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a2.a0.a5.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a2.a0.a5.a1.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a2.a0.a6;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a2.a1.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a2.a1.a0.a1;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a2.a1.a1.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a2.a2;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a2.a3;
-  result += passStructNestedIrregularEvenBiggerx4_a2.a3;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a1.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a1.a0.a1.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a1.a0.a1.a0.a1;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a1.a0.a1.a1.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a1.a0.a2;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a1.a0.a3.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a1.a0.a3.a1;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a1.a0.a4;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a1.a0.a5.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a1.a0.a5.a1.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a1.a0.a6;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a1.a1.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a1.a1.a0.a1;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a1.a1.a1.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a1.a2;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a1.a3;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a2.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a2.a0.a1.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a2.a0.a1.a0.a1;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a2.a0.a1.a1.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a2.a0.a2;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a2.a0.a3.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a2.a0.a3.a1;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a2.a0.a4;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a2.a0.a5.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a2.a0.a5.a1.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a2.a0.a6;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a2.a1.a0.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a2.a1.a0.a1;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a2.a1.a1.a0;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a2.a2;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a2.a3;
-  result += passStructNestedIrregularEvenBiggerx4_a3.a3;
-
-  passStructNestedIrregularEvenBiggerx4Result = result;
-
-  return result;
-}
-
-/// Return big irregular struct as smoke test.
-double passStructNestedIrregularEvenBiggerx4(
-    StructNestedIrregularEvenBigger a0,
-    StructNestedIrregularEvenBigger a1,
-    StructNestedIrregularEvenBigger a2,
-    StructNestedIrregularEvenBigger a3) {
-  print("passStructNestedIrregularEvenBiggerx4(${a0}, ${a1}, ${a2}, ${a3})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassStructNestedIrregularEvenBiggerx4 throwing on purpose!");
-  }
-
-  passStructNestedIrregularEvenBiggerx4_a0 = a0;
-  passStructNestedIrregularEvenBiggerx4_a1 = a1;
-  passStructNestedIrregularEvenBiggerx4_a2 = a2;
-  passStructNestedIrregularEvenBiggerx4_a3 = a3;
-
-  final result = passStructNestedIrregularEvenBiggerx4CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStructNestedIrregularEvenBiggerx4AfterCallback() {
-  final result = passStructNestedIrregularEvenBiggerx4CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(1572.0, result);
-}
-
-typedef PassStruct8BytesInlineArrayIntx4Type = Int32 Function(
-    Struct8BytesInlineArrayInt,
-    Struct8BytesInlineArrayInt,
-    Struct8BytesInlineArrayInt,
-    Struct8BytesInlineArrayInt);
-
-// Global variables to be able to test inputs after callback returned.
-Struct8BytesInlineArrayInt passStruct8BytesInlineArrayIntx4_a0 =
-    Pointer<Struct8BytesInlineArrayInt>.fromAddress(0).ref;
-Struct8BytesInlineArrayInt passStruct8BytesInlineArrayIntx4_a1 =
-    Pointer<Struct8BytesInlineArrayInt>.fromAddress(0).ref;
-Struct8BytesInlineArrayInt passStruct8BytesInlineArrayIntx4_a2 =
-    Pointer<Struct8BytesInlineArrayInt>.fromAddress(0).ref;
-Struct8BytesInlineArrayInt passStruct8BytesInlineArrayIntx4_a3 =
-    Pointer<Struct8BytesInlineArrayInt>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStruct8BytesInlineArrayIntx4Result = 0;
-
-int passStruct8BytesInlineArrayIntx4CalculateResult() {
-  int result = 0;
-
-  result += passStruct8BytesInlineArrayIntx4_a0.a0[0];
-  result += passStruct8BytesInlineArrayIntx4_a0.a0[1];
-  result += passStruct8BytesInlineArrayIntx4_a0.a0[2];
-  result += passStruct8BytesInlineArrayIntx4_a0.a0[3];
-  result += passStruct8BytesInlineArrayIntx4_a0.a0[4];
-  result += passStruct8BytesInlineArrayIntx4_a0.a0[5];
-  result += passStruct8BytesInlineArrayIntx4_a0.a0[6];
-  result += passStruct8BytesInlineArrayIntx4_a0.a0[7];
-  result += passStruct8BytesInlineArrayIntx4_a1.a0[0];
-  result += passStruct8BytesInlineArrayIntx4_a1.a0[1];
-  result += passStruct8BytesInlineArrayIntx4_a1.a0[2];
-  result += passStruct8BytesInlineArrayIntx4_a1.a0[3];
-  result += passStruct8BytesInlineArrayIntx4_a1.a0[4];
-  result += passStruct8BytesInlineArrayIntx4_a1.a0[5];
-  result += passStruct8BytesInlineArrayIntx4_a1.a0[6];
-  result += passStruct8BytesInlineArrayIntx4_a1.a0[7];
-  result += passStruct8BytesInlineArrayIntx4_a2.a0[0];
-  result += passStruct8BytesInlineArrayIntx4_a2.a0[1];
-  result += passStruct8BytesInlineArrayIntx4_a2.a0[2];
-  result += passStruct8BytesInlineArrayIntx4_a2.a0[3];
-  result += passStruct8BytesInlineArrayIntx4_a2.a0[4];
-  result += passStruct8BytesInlineArrayIntx4_a2.a0[5];
-  result += passStruct8BytesInlineArrayIntx4_a2.a0[6];
-  result += passStruct8BytesInlineArrayIntx4_a2.a0[7];
-  result += passStruct8BytesInlineArrayIntx4_a3.a0[0];
-  result += passStruct8BytesInlineArrayIntx4_a3.a0[1];
-  result += passStruct8BytesInlineArrayIntx4_a3.a0[2];
-  result += passStruct8BytesInlineArrayIntx4_a3.a0[3];
-  result += passStruct8BytesInlineArrayIntx4_a3.a0[4];
-  result += passStruct8BytesInlineArrayIntx4_a3.a0[5];
-  result += passStruct8BytesInlineArrayIntx4_a3.a0[6];
-  result += passStruct8BytesInlineArrayIntx4_a3.a0[7];
-
-  passStruct8BytesInlineArrayIntx4Result = result;
-
-  return result;
-}
-
-/// Simple struct with inline array.
-int passStruct8BytesInlineArrayIntx4(
-    Struct8BytesInlineArrayInt a0,
-    Struct8BytesInlineArrayInt a1,
-    Struct8BytesInlineArrayInt a2,
-    Struct8BytesInlineArrayInt a3) {
-  print("passStruct8BytesInlineArrayIntx4(${a0}, ${a1}, ${a2}, ${a3})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0[0] == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0[0] == 42 || a0.a0[0] == 84) {
-    print("throwing!");
-    throw Exception("PassStruct8BytesInlineArrayIntx4 throwing on purpose!");
-  }
-
-  passStruct8BytesInlineArrayIntx4_a0 = a0;
-  passStruct8BytesInlineArrayIntx4_a1 = a1;
-  passStruct8BytesInlineArrayIntx4_a2 = a2;
-  passStruct8BytesInlineArrayIntx4_a3 = a3;
-
-  final result = passStruct8BytesInlineArrayIntx4CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct8BytesInlineArrayIntx4AfterCallback() {
-  final result = passStruct8BytesInlineArrayIntx4CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(528, result);
-}
-
-typedef PassStructInlineArrayIrregularx4Type = Int32 Function(
-    StructInlineArrayIrregular,
-    StructInlineArrayIrregular,
-    StructInlineArrayIrregular,
-    StructInlineArrayIrregular);
-
-// Global variables to be able to test inputs after callback returned.
-StructInlineArrayIrregular passStructInlineArrayIrregularx4_a0 =
-    Pointer<StructInlineArrayIrregular>.fromAddress(0).ref;
-StructInlineArrayIrregular passStructInlineArrayIrregularx4_a1 =
-    Pointer<StructInlineArrayIrregular>.fromAddress(0).ref;
-StructInlineArrayIrregular passStructInlineArrayIrregularx4_a2 =
-    Pointer<StructInlineArrayIrregular>.fromAddress(0).ref;
-StructInlineArrayIrregular passStructInlineArrayIrregularx4_a3 =
-    Pointer<StructInlineArrayIrregular>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStructInlineArrayIrregularx4Result = 0;
-
-int passStructInlineArrayIrregularx4CalculateResult() {
-  int result = 0;
-
-  result += passStructInlineArrayIrregularx4_a0.a0[0].a0;
-  result += passStructInlineArrayIrregularx4_a0.a0[0].a1;
-  result += passStructInlineArrayIrregularx4_a0.a0[1].a0;
-  result += passStructInlineArrayIrregularx4_a0.a0[1].a1;
-  result += passStructInlineArrayIrregularx4_a0.a1;
-  result += passStructInlineArrayIrregularx4_a1.a0[0].a0;
-  result += passStructInlineArrayIrregularx4_a1.a0[0].a1;
-  result += passStructInlineArrayIrregularx4_a1.a0[1].a0;
-  result += passStructInlineArrayIrregularx4_a1.a0[1].a1;
-  result += passStructInlineArrayIrregularx4_a1.a1;
-  result += passStructInlineArrayIrregularx4_a2.a0[0].a0;
-  result += passStructInlineArrayIrregularx4_a2.a0[0].a1;
-  result += passStructInlineArrayIrregularx4_a2.a0[1].a0;
-  result += passStructInlineArrayIrregularx4_a2.a0[1].a1;
-  result += passStructInlineArrayIrregularx4_a2.a1;
-  result += passStructInlineArrayIrregularx4_a3.a0[0].a0;
-  result += passStructInlineArrayIrregularx4_a3.a0[0].a1;
-  result += passStructInlineArrayIrregularx4_a3.a0[1].a0;
-  result += passStructInlineArrayIrregularx4_a3.a0[1].a1;
-  result += passStructInlineArrayIrregularx4_a3.a1;
-
-  passStructInlineArrayIrregularx4Result = result;
-
-  return result;
-}
-
-/// Irregular struct with inline array.
-int passStructInlineArrayIrregularx4(
-    StructInlineArrayIrregular a0,
-    StructInlineArrayIrregular a1,
-    StructInlineArrayIrregular a2,
-    StructInlineArrayIrregular a3) {
-  print("passStructInlineArrayIrregularx4(${a0}, ${a1}, ${a2}, ${a3})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0[0].a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0[0].a0 == 42 || a0.a0[0].a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStructInlineArrayIrregularx4 throwing on purpose!");
-  }
-
-  passStructInlineArrayIrregularx4_a0 = a0;
-  passStructInlineArrayIrregularx4_a1 = a1;
-  passStructInlineArrayIrregularx4_a2 = a2;
-  passStructInlineArrayIrregularx4_a3 = a3;
-
-  final result = passStructInlineArrayIrregularx4CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStructInlineArrayIrregularx4AfterCallback() {
-  final result = passStructInlineArrayIrregularx4CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(50, result);
-}
-
-typedef PassStructInlineArray100BytesType = Int32 Function(
-    StructInlineArray100Bytes);
-
-// Global variables to be able to test inputs after callback returned.
-StructInlineArray100Bytes passStructInlineArray100Bytes_a0 =
-    Pointer<StructInlineArray100Bytes>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStructInlineArray100BytesResult = 0;
-
-int passStructInlineArray100BytesCalculateResult() {
-  int result = 0;
-
-  result += passStructInlineArray100Bytes_a0.a0[0];
-  result += passStructInlineArray100Bytes_a0.a0[1];
-  result += passStructInlineArray100Bytes_a0.a0[2];
-  result += passStructInlineArray100Bytes_a0.a0[3];
-  result += passStructInlineArray100Bytes_a0.a0[4];
-  result += passStructInlineArray100Bytes_a0.a0[5];
-  result += passStructInlineArray100Bytes_a0.a0[6];
-  result += passStructInlineArray100Bytes_a0.a0[7];
-  result += passStructInlineArray100Bytes_a0.a0[8];
-  result += passStructInlineArray100Bytes_a0.a0[9];
-  result += passStructInlineArray100Bytes_a0.a0[10];
-  result += passStructInlineArray100Bytes_a0.a0[11];
-  result += passStructInlineArray100Bytes_a0.a0[12];
-  result += passStructInlineArray100Bytes_a0.a0[13];
-  result += passStructInlineArray100Bytes_a0.a0[14];
-  result += passStructInlineArray100Bytes_a0.a0[15];
-  result += passStructInlineArray100Bytes_a0.a0[16];
-  result += passStructInlineArray100Bytes_a0.a0[17];
-  result += passStructInlineArray100Bytes_a0.a0[18];
-  result += passStructInlineArray100Bytes_a0.a0[19];
-  result += passStructInlineArray100Bytes_a0.a0[20];
-  result += passStructInlineArray100Bytes_a0.a0[21];
-  result += passStructInlineArray100Bytes_a0.a0[22];
-  result += passStructInlineArray100Bytes_a0.a0[23];
-  result += passStructInlineArray100Bytes_a0.a0[24];
-  result += passStructInlineArray100Bytes_a0.a0[25];
-  result += passStructInlineArray100Bytes_a0.a0[26];
-  result += passStructInlineArray100Bytes_a0.a0[27];
-  result += passStructInlineArray100Bytes_a0.a0[28];
-  result += passStructInlineArray100Bytes_a0.a0[29];
-  result += passStructInlineArray100Bytes_a0.a0[30];
-  result += passStructInlineArray100Bytes_a0.a0[31];
-  result += passStructInlineArray100Bytes_a0.a0[32];
-  result += passStructInlineArray100Bytes_a0.a0[33];
-  result += passStructInlineArray100Bytes_a0.a0[34];
-  result += passStructInlineArray100Bytes_a0.a0[35];
-  result += passStructInlineArray100Bytes_a0.a0[36];
-  result += passStructInlineArray100Bytes_a0.a0[37];
-  result += passStructInlineArray100Bytes_a0.a0[38];
-  result += passStructInlineArray100Bytes_a0.a0[39];
-  result += passStructInlineArray100Bytes_a0.a0[40];
-  result += passStructInlineArray100Bytes_a0.a0[41];
-  result += passStructInlineArray100Bytes_a0.a0[42];
-  result += passStructInlineArray100Bytes_a0.a0[43];
-  result += passStructInlineArray100Bytes_a0.a0[44];
-  result += passStructInlineArray100Bytes_a0.a0[45];
-  result += passStructInlineArray100Bytes_a0.a0[46];
-  result += passStructInlineArray100Bytes_a0.a0[47];
-  result += passStructInlineArray100Bytes_a0.a0[48];
-  result += passStructInlineArray100Bytes_a0.a0[49];
-  result += passStructInlineArray100Bytes_a0.a0[50];
-  result += passStructInlineArray100Bytes_a0.a0[51];
-  result += passStructInlineArray100Bytes_a0.a0[52];
-  result += passStructInlineArray100Bytes_a0.a0[53];
-  result += passStructInlineArray100Bytes_a0.a0[54];
-  result += passStructInlineArray100Bytes_a0.a0[55];
-  result += passStructInlineArray100Bytes_a0.a0[56];
-  result += passStructInlineArray100Bytes_a0.a0[57];
-  result += passStructInlineArray100Bytes_a0.a0[58];
-  result += passStructInlineArray100Bytes_a0.a0[59];
-  result += passStructInlineArray100Bytes_a0.a0[60];
-  result += passStructInlineArray100Bytes_a0.a0[61];
-  result += passStructInlineArray100Bytes_a0.a0[62];
-  result += passStructInlineArray100Bytes_a0.a0[63];
-  result += passStructInlineArray100Bytes_a0.a0[64];
-  result += passStructInlineArray100Bytes_a0.a0[65];
-  result += passStructInlineArray100Bytes_a0.a0[66];
-  result += passStructInlineArray100Bytes_a0.a0[67];
-  result += passStructInlineArray100Bytes_a0.a0[68];
-  result += passStructInlineArray100Bytes_a0.a0[69];
-  result += passStructInlineArray100Bytes_a0.a0[70];
-  result += passStructInlineArray100Bytes_a0.a0[71];
-  result += passStructInlineArray100Bytes_a0.a0[72];
-  result += passStructInlineArray100Bytes_a0.a0[73];
-  result += passStructInlineArray100Bytes_a0.a0[74];
-  result += passStructInlineArray100Bytes_a0.a0[75];
-  result += passStructInlineArray100Bytes_a0.a0[76];
-  result += passStructInlineArray100Bytes_a0.a0[77];
-  result += passStructInlineArray100Bytes_a0.a0[78];
-  result += passStructInlineArray100Bytes_a0.a0[79];
-  result += passStructInlineArray100Bytes_a0.a0[80];
-  result += passStructInlineArray100Bytes_a0.a0[81];
-  result += passStructInlineArray100Bytes_a0.a0[82];
-  result += passStructInlineArray100Bytes_a0.a0[83];
-  result += passStructInlineArray100Bytes_a0.a0[84];
-  result += passStructInlineArray100Bytes_a0.a0[85];
-  result += passStructInlineArray100Bytes_a0.a0[86];
-  result += passStructInlineArray100Bytes_a0.a0[87];
-  result += passStructInlineArray100Bytes_a0.a0[88];
-  result += passStructInlineArray100Bytes_a0.a0[89];
-  result += passStructInlineArray100Bytes_a0.a0[90];
-  result += passStructInlineArray100Bytes_a0.a0[91];
-  result += passStructInlineArray100Bytes_a0.a0[92];
-  result += passStructInlineArray100Bytes_a0.a0[93];
-  result += passStructInlineArray100Bytes_a0.a0[94];
-  result += passStructInlineArray100Bytes_a0.a0[95];
-  result += passStructInlineArray100Bytes_a0.a0[96];
-  result += passStructInlineArray100Bytes_a0.a0[97];
-  result += passStructInlineArray100Bytes_a0.a0[98];
-  result += passStructInlineArray100Bytes_a0.a0[99];
-
-  passStructInlineArray100BytesResult = result;
-
-  return result;
-}
-
-/// Regular larger struct with inline array.
-int passStructInlineArray100Bytes(StructInlineArray100Bytes a0) {
-  print("passStructInlineArray100Bytes(${a0})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0[0] == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0[0] == 42 || a0.a0[0] == 84) {
-    print("throwing!");
-    throw Exception("PassStructInlineArray100Bytes throwing on purpose!");
-  }
-
-  passStructInlineArray100Bytes_a0 = a0;
-
-  final result = passStructInlineArray100BytesCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStructInlineArray100BytesAfterCallback() {
-  final result = passStructInlineArray100BytesCalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(5050, result);
-}
-
-typedef PassStructStruct16BytesHomogeneousFloat2x5Type = Float Function(
-    StructStruct16BytesHomogeneousFloat2,
-    StructStruct16BytesHomogeneousFloat2,
-    StructStruct16BytesHomogeneousFloat2,
-    StructStruct16BytesHomogeneousFloat2,
-    StructStruct16BytesHomogeneousFloat2);
-
-// Global variables to be able to test inputs after callback returned.
-StructStruct16BytesHomogeneousFloat2
-    passStructStruct16BytesHomogeneousFloat2x5_a0 =
-    Pointer<StructStruct16BytesHomogeneousFloat2>.fromAddress(0).ref;
-StructStruct16BytesHomogeneousFloat2
-    passStructStruct16BytesHomogeneousFloat2x5_a1 =
-    Pointer<StructStruct16BytesHomogeneousFloat2>.fromAddress(0).ref;
-StructStruct16BytesHomogeneousFloat2
-    passStructStruct16BytesHomogeneousFloat2x5_a2 =
-    Pointer<StructStruct16BytesHomogeneousFloat2>.fromAddress(0).ref;
-StructStruct16BytesHomogeneousFloat2
-    passStructStruct16BytesHomogeneousFloat2x5_a3 =
-    Pointer<StructStruct16BytesHomogeneousFloat2>.fromAddress(0).ref;
-StructStruct16BytesHomogeneousFloat2
-    passStructStruct16BytesHomogeneousFloat2x5_a4 =
-    Pointer<StructStruct16BytesHomogeneousFloat2>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passStructStruct16BytesHomogeneousFloat2x5Result = 0.0;
-
-double passStructStruct16BytesHomogeneousFloat2x5CalculateResult() {
-  double result = 0;
-
-  result += passStructStruct16BytesHomogeneousFloat2x5_a0.a0.a0;
-  result += passStructStruct16BytesHomogeneousFloat2x5_a0.a1[0].a0;
-  result += passStructStruct16BytesHomogeneousFloat2x5_a0.a1[1].a0;
-  result += passStructStruct16BytesHomogeneousFloat2x5_a0.a2;
-  result += passStructStruct16BytesHomogeneousFloat2x5_a1.a0.a0;
-  result += passStructStruct16BytesHomogeneousFloat2x5_a1.a1[0].a0;
-  result += passStructStruct16BytesHomogeneousFloat2x5_a1.a1[1].a0;
-  result += passStructStruct16BytesHomogeneousFloat2x5_a1.a2;
-  result += passStructStruct16BytesHomogeneousFloat2x5_a2.a0.a0;
-  result += passStructStruct16BytesHomogeneousFloat2x5_a2.a1[0].a0;
-  result += passStructStruct16BytesHomogeneousFloat2x5_a2.a1[1].a0;
-  result += passStructStruct16BytesHomogeneousFloat2x5_a2.a2;
-  result += passStructStruct16BytesHomogeneousFloat2x5_a3.a0.a0;
-  result += passStructStruct16BytesHomogeneousFloat2x5_a3.a1[0].a0;
-  result += passStructStruct16BytesHomogeneousFloat2x5_a3.a1[1].a0;
-  result += passStructStruct16BytesHomogeneousFloat2x5_a3.a2;
-  result += passStructStruct16BytesHomogeneousFloat2x5_a4.a0.a0;
-  result += passStructStruct16BytesHomogeneousFloat2x5_a4.a1[0].a0;
-  result += passStructStruct16BytesHomogeneousFloat2x5_a4.a1[1].a0;
-  result += passStructStruct16BytesHomogeneousFloat2x5_a4.a2;
-
-  passStructStruct16BytesHomogeneousFloat2x5Result = result;
-
-  return result;
-}
-
-/// Arguments in FPU registers on arm hardfp and arm64.
-/// 5 struct arguments will exhaust available registers.
-double passStructStruct16BytesHomogeneousFloat2x5(
-    StructStruct16BytesHomogeneousFloat2 a0,
-    StructStruct16BytesHomogeneousFloat2 a1,
-    StructStruct16BytesHomogeneousFloat2 a2,
-    StructStruct16BytesHomogeneousFloat2 a3,
-    StructStruct16BytesHomogeneousFloat2 a4) {
-  print(
-      "passStructStruct16BytesHomogeneousFloat2x5(${a0}, ${a1}, ${a2}, ${a3}, ${a4})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0.a0 == 42 || a0.a0.a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassStructStruct16BytesHomogeneousFloat2x5 throwing on purpose!");
-  }
-
-  passStructStruct16BytesHomogeneousFloat2x5_a0 = a0;
-  passStructStruct16BytesHomogeneousFloat2x5_a1 = a1;
-  passStructStruct16BytesHomogeneousFloat2x5_a2 = a2;
-  passStructStruct16BytesHomogeneousFloat2x5_a3 = a3;
-  passStructStruct16BytesHomogeneousFloat2x5_a4 = a4;
-
-  final result = passStructStruct16BytesHomogeneousFloat2x5CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStructStruct16BytesHomogeneousFloat2x5AfterCallback() {
-  final result = passStructStruct16BytesHomogeneousFloat2x5CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(10.0, result);
-}
-
-typedef PassStructStruct32BytesHomogeneousDouble2x5Type = Double Function(
-    StructStruct32BytesHomogeneousDouble2,
-    StructStruct32BytesHomogeneousDouble2,
-    StructStruct32BytesHomogeneousDouble2,
-    StructStruct32BytesHomogeneousDouble2,
-    StructStruct32BytesHomogeneousDouble2);
-
-// Global variables to be able to test inputs after callback returned.
-StructStruct32BytesHomogeneousDouble2
-    passStructStruct32BytesHomogeneousDouble2x5_a0 =
-    Pointer<StructStruct32BytesHomogeneousDouble2>.fromAddress(0).ref;
-StructStruct32BytesHomogeneousDouble2
-    passStructStruct32BytesHomogeneousDouble2x5_a1 =
-    Pointer<StructStruct32BytesHomogeneousDouble2>.fromAddress(0).ref;
-StructStruct32BytesHomogeneousDouble2
-    passStructStruct32BytesHomogeneousDouble2x5_a2 =
-    Pointer<StructStruct32BytesHomogeneousDouble2>.fromAddress(0).ref;
-StructStruct32BytesHomogeneousDouble2
-    passStructStruct32BytesHomogeneousDouble2x5_a3 =
-    Pointer<StructStruct32BytesHomogeneousDouble2>.fromAddress(0).ref;
-StructStruct32BytesHomogeneousDouble2
-    passStructStruct32BytesHomogeneousDouble2x5_a4 =
-    Pointer<StructStruct32BytesHomogeneousDouble2>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passStructStruct32BytesHomogeneousDouble2x5Result = 0.0;
-
-double passStructStruct32BytesHomogeneousDouble2x5CalculateResult() {
-  double result = 0;
-
-  result += passStructStruct32BytesHomogeneousDouble2x5_a0.a0.a0;
-  result += passStructStruct32BytesHomogeneousDouble2x5_a0.a1[0].a0;
-  result += passStructStruct32BytesHomogeneousDouble2x5_a0.a1[1].a0;
-  result += passStructStruct32BytesHomogeneousDouble2x5_a0.a2;
-  result += passStructStruct32BytesHomogeneousDouble2x5_a1.a0.a0;
-  result += passStructStruct32BytesHomogeneousDouble2x5_a1.a1[0].a0;
-  result += passStructStruct32BytesHomogeneousDouble2x5_a1.a1[1].a0;
-  result += passStructStruct32BytesHomogeneousDouble2x5_a1.a2;
-  result += passStructStruct32BytesHomogeneousDouble2x5_a2.a0.a0;
-  result += passStructStruct32BytesHomogeneousDouble2x5_a2.a1[0].a0;
-  result += passStructStruct32BytesHomogeneousDouble2x5_a2.a1[1].a0;
-  result += passStructStruct32BytesHomogeneousDouble2x5_a2.a2;
-  result += passStructStruct32BytesHomogeneousDouble2x5_a3.a0.a0;
-  result += passStructStruct32BytesHomogeneousDouble2x5_a3.a1[0].a0;
-  result += passStructStruct32BytesHomogeneousDouble2x5_a3.a1[1].a0;
-  result += passStructStruct32BytesHomogeneousDouble2x5_a3.a2;
-  result += passStructStruct32BytesHomogeneousDouble2x5_a4.a0.a0;
-  result += passStructStruct32BytesHomogeneousDouble2x5_a4.a1[0].a0;
-  result += passStructStruct32BytesHomogeneousDouble2x5_a4.a1[1].a0;
-  result += passStructStruct32BytesHomogeneousDouble2x5_a4.a2;
-
-  passStructStruct32BytesHomogeneousDouble2x5Result = result;
-
-  return result;
-}
-
-/// Arguments in FPU registers on arm64.
-/// 5 struct arguments will exhaust available registers.
-double passStructStruct32BytesHomogeneousDouble2x5(
-    StructStruct32BytesHomogeneousDouble2 a0,
-    StructStruct32BytesHomogeneousDouble2 a1,
-    StructStruct32BytesHomogeneousDouble2 a2,
-    StructStruct32BytesHomogeneousDouble2 a3,
-    StructStruct32BytesHomogeneousDouble2 a4) {
-  print(
-      "passStructStruct32BytesHomogeneousDouble2x5(${a0}, ${a1}, ${a2}, ${a3}, ${a4})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0.a0 == 42 || a0.a0.a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassStructStruct32BytesHomogeneousDouble2x5 throwing on purpose!");
-  }
-
-  passStructStruct32BytesHomogeneousDouble2x5_a0 = a0;
-  passStructStruct32BytesHomogeneousDouble2x5_a1 = a1;
-  passStructStruct32BytesHomogeneousDouble2x5_a2 = a2;
-  passStructStruct32BytesHomogeneousDouble2x5_a3 = a3;
-  passStructStruct32BytesHomogeneousDouble2x5_a4 = a4;
-
-  final result = passStructStruct32BytesHomogeneousDouble2x5CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStructStruct32BytesHomogeneousDouble2x5AfterCallback() {
-  final result = passStructStruct32BytesHomogeneousDouble2x5CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(10.0, result);
-}
-
-typedef PassStructStruct16BytesMixed3x10Type = Float Function(
-    StructStruct16BytesMixed3,
-    StructStruct16BytesMixed3,
-    StructStruct16BytesMixed3,
-    StructStruct16BytesMixed3,
-    StructStruct16BytesMixed3,
-    StructStruct16BytesMixed3,
-    StructStruct16BytesMixed3,
-    StructStruct16BytesMixed3,
-    StructStruct16BytesMixed3,
-    StructStruct16BytesMixed3);
-
-// Global variables to be able to test inputs after callback returned.
-StructStruct16BytesMixed3 passStructStruct16BytesMixed3x10_a0 =
-    Pointer<StructStruct16BytesMixed3>.fromAddress(0).ref;
-StructStruct16BytesMixed3 passStructStruct16BytesMixed3x10_a1 =
-    Pointer<StructStruct16BytesMixed3>.fromAddress(0).ref;
-StructStruct16BytesMixed3 passStructStruct16BytesMixed3x10_a2 =
-    Pointer<StructStruct16BytesMixed3>.fromAddress(0).ref;
-StructStruct16BytesMixed3 passStructStruct16BytesMixed3x10_a3 =
-    Pointer<StructStruct16BytesMixed3>.fromAddress(0).ref;
-StructStruct16BytesMixed3 passStructStruct16BytesMixed3x10_a4 =
-    Pointer<StructStruct16BytesMixed3>.fromAddress(0).ref;
-StructStruct16BytesMixed3 passStructStruct16BytesMixed3x10_a5 =
-    Pointer<StructStruct16BytesMixed3>.fromAddress(0).ref;
-StructStruct16BytesMixed3 passStructStruct16BytesMixed3x10_a6 =
-    Pointer<StructStruct16BytesMixed3>.fromAddress(0).ref;
-StructStruct16BytesMixed3 passStructStruct16BytesMixed3x10_a7 =
-    Pointer<StructStruct16BytesMixed3>.fromAddress(0).ref;
-StructStruct16BytesMixed3 passStructStruct16BytesMixed3x10_a8 =
-    Pointer<StructStruct16BytesMixed3>.fromAddress(0).ref;
-StructStruct16BytesMixed3 passStructStruct16BytesMixed3x10_a9 =
-    Pointer<StructStruct16BytesMixed3>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passStructStruct16BytesMixed3x10Result = 0.0;
-
-double passStructStruct16BytesMixed3x10CalculateResult() {
-  double result = 0;
-
-  result += passStructStruct16BytesMixed3x10_a0.a0.a0;
-  result += passStructStruct16BytesMixed3x10_a0.a1[0].a0;
-  result += passStructStruct16BytesMixed3x10_a0.a1[0].a1;
-  result += passStructStruct16BytesMixed3x10_a0.a1[0].a2;
-  result += passStructStruct16BytesMixed3x10_a0.a2[0];
-  result += passStructStruct16BytesMixed3x10_a0.a2[1];
-  result += passStructStruct16BytesMixed3x10_a1.a0.a0;
-  result += passStructStruct16BytesMixed3x10_a1.a1[0].a0;
-  result += passStructStruct16BytesMixed3x10_a1.a1[0].a1;
-  result += passStructStruct16BytesMixed3x10_a1.a1[0].a2;
-  result += passStructStruct16BytesMixed3x10_a1.a2[0];
-  result += passStructStruct16BytesMixed3x10_a1.a2[1];
-  result += passStructStruct16BytesMixed3x10_a2.a0.a0;
-  result += passStructStruct16BytesMixed3x10_a2.a1[0].a0;
-  result += passStructStruct16BytesMixed3x10_a2.a1[0].a1;
-  result += passStructStruct16BytesMixed3x10_a2.a1[0].a2;
-  result += passStructStruct16BytesMixed3x10_a2.a2[0];
-  result += passStructStruct16BytesMixed3x10_a2.a2[1];
-  result += passStructStruct16BytesMixed3x10_a3.a0.a0;
-  result += passStructStruct16BytesMixed3x10_a3.a1[0].a0;
-  result += passStructStruct16BytesMixed3x10_a3.a1[0].a1;
-  result += passStructStruct16BytesMixed3x10_a3.a1[0].a2;
-  result += passStructStruct16BytesMixed3x10_a3.a2[0];
-  result += passStructStruct16BytesMixed3x10_a3.a2[1];
-  result += passStructStruct16BytesMixed3x10_a4.a0.a0;
-  result += passStructStruct16BytesMixed3x10_a4.a1[0].a0;
-  result += passStructStruct16BytesMixed3x10_a4.a1[0].a1;
-  result += passStructStruct16BytesMixed3x10_a4.a1[0].a2;
-  result += passStructStruct16BytesMixed3x10_a4.a2[0];
-  result += passStructStruct16BytesMixed3x10_a4.a2[1];
-  result += passStructStruct16BytesMixed3x10_a5.a0.a0;
-  result += passStructStruct16BytesMixed3x10_a5.a1[0].a0;
-  result += passStructStruct16BytesMixed3x10_a5.a1[0].a1;
-  result += passStructStruct16BytesMixed3x10_a5.a1[0].a2;
-  result += passStructStruct16BytesMixed3x10_a5.a2[0];
-  result += passStructStruct16BytesMixed3x10_a5.a2[1];
-  result += passStructStruct16BytesMixed3x10_a6.a0.a0;
-  result += passStructStruct16BytesMixed3x10_a6.a1[0].a0;
-  result += passStructStruct16BytesMixed3x10_a6.a1[0].a1;
-  result += passStructStruct16BytesMixed3x10_a6.a1[0].a2;
-  result += passStructStruct16BytesMixed3x10_a6.a2[0];
-  result += passStructStruct16BytesMixed3x10_a6.a2[1];
-  result += passStructStruct16BytesMixed3x10_a7.a0.a0;
-  result += passStructStruct16BytesMixed3x10_a7.a1[0].a0;
-  result += passStructStruct16BytesMixed3x10_a7.a1[0].a1;
-  result += passStructStruct16BytesMixed3x10_a7.a1[0].a2;
-  result += passStructStruct16BytesMixed3x10_a7.a2[0];
-  result += passStructStruct16BytesMixed3x10_a7.a2[1];
-  result += passStructStruct16BytesMixed3x10_a8.a0.a0;
-  result += passStructStruct16BytesMixed3x10_a8.a1[0].a0;
-  result += passStructStruct16BytesMixed3x10_a8.a1[0].a1;
-  result += passStructStruct16BytesMixed3x10_a8.a1[0].a2;
-  result += passStructStruct16BytesMixed3x10_a8.a2[0];
-  result += passStructStruct16BytesMixed3x10_a8.a2[1];
-  result += passStructStruct16BytesMixed3x10_a9.a0.a0;
-  result += passStructStruct16BytesMixed3x10_a9.a1[0].a0;
-  result += passStructStruct16BytesMixed3x10_a9.a1[0].a1;
-  result += passStructStruct16BytesMixed3x10_a9.a1[0].a2;
-  result += passStructStruct16BytesMixed3x10_a9.a2[0];
-  result += passStructStruct16BytesMixed3x10_a9.a2[1];
-
-  passStructStruct16BytesMixed3x10Result = result;
-
-  return result;
-}
-
-/// On x64, arguments are split over FP and int registers.
-/// On x64, it will exhaust the integer registers with the 6th argument.
-/// The rest goes on the stack.
-/// On arm, arguments are 4 byte aligned.
-double passStructStruct16BytesMixed3x10(
-    StructStruct16BytesMixed3 a0,
-    StructStruct16BytesMixed3 a1,
-    StructStruct16BytesMixed3 a2,
-    StructStruct16BytesMixed3 a3,
-    StructStruct16BytesMixed3 a4,
-    StructStruct16BytesMixed3 a5,
-    StructStruct16BytesMixed3 a6,
-    StructStruct16BytesMixed3 a7,
-    StructStruct16BytesMixed3 a8,
-    StructStruct16BytesMixed3 a9) {
-  print(
-      "passStructStruct16BytesMixed3x10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0.a0 == 42 || a0.a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStructStruct16BytesMixed3x10 throwing on purpose!");
-  }
-
-  passStructStruct16BytesMixed3x10_a0 = a0;
-  passStructStruct16BytesMixed3x10_a1 = a1;
-  passStructStruct16BytesMixed3x10_a2 = a2;
-  passStructStruct16BytesMixed3x10_a3 = a3;
-  passStructStruct16BytesMixed3x10_a4 = a4;
-  passStructStruct16BytesMixed3x10_a5 = a5;
-  passStructStruct16BytesMixed3x10_a6 = a6;
-  passStructStruct16BytesMixed3x10_a7 = a7;
-  passStructStruct16BytesMixed3x10_a8 = a8;
-  passStructStruct16BytesMixed3x10_a9 = a9;
-
-  final result = passStructStruct16BytesMixed3x10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStructStruct16BytesMixed3x10AfterCallback() {
-  final result = passStructStruct16BytesMixed3x10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(30.0, result);
-}
-
-typedef PassUint8Struct32BytesInlineArrayMultiDimensionalIType
-    = Uint32 Function(
-        Uint8,
-        Struct32BytesInlineArrayMultiDimensionalInt,
-        Uint8,
-        Struct8BytesInlineArrayMultiDimensionalInt,
-        Uint8,
-        Struct8BytesInlineArrayMultiDimensionalInt,
-        Uint8);
-
-// Global variables to be able to test inputs after callback returned.
-int passUint8Struct32BytesInlineArrayMultiDimensionalI_a0 = 0;
-Struct32BytesInlineArrayMultiDimensionalInt
-    passUint8Struct32BytesInlineArrayMultiDimensionalI_a1 =
-    Pointer<Struct32BytesInlineArrayMultiDimensionalInt>.fromAddress(0).ref;
-int passUint8Struct32BytesInlineArrayMultiDimensionalI_a2 = 0;
-Struct8BytesInlineArrayMultiDimensionalInt
-    passUint8Struct32BytesInlineArrayMultiDimensionalI_a3 =
-    Pointer<Struct8BytesInlineArrayMultiDimensionalInt>.fromAddress(0).ref;
-int passUint8Struct32BytesInlineArrayMultiDimensionalI_a4 = 0;
-Struct8BytesInlineArrayMultiDimensionalInt
-    passUint8Struct32BytesInlineArrayMultiDimensionalI_a5 =
-    Pointer<Struct8BytesInlineArrayMultiDimensionalInt>.fromAddress(0).ref;
-int passUint8Struct32BytesInlineArrayMultiDimensionalI_a6 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-int passUint8Struct32BytesInlineArrayMultiDimensionalIResult = 0;
-
-int passUint8Struct32BytesInlineArrayMultiDimensionalICalculateResult() {
-  int result = 0;
-
-  result += passUint8Struct32BytesInlineArrayMultiDimensionalI_a0;
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[0][0][0][0][0];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[0][0][0][0][1];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[0][0][0][1][0];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[0][0][0][1][1];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[0][0][1][0][0];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[0][0][1][0][1];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[0][0][1][1][0];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[0][0][1][1][1];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[0][1][0][0][0];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[0][1][0][0][1];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[0][1][0][1][0];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[0][1][0][1][1];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[0][1][1][0][0];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[0][1][1][0][1];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[0][1][1][1][0];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[0][1][1][1][1];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[1][0][0][0][0];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[1][0][0][0][1];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[1][0][0][1][0];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[1][0][0][1][1];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[1][0][1][0][0];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[1][0][1][0][1];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[1][0][1][1][0];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[1][0][1][1][1];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[1][1][0][0][0];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[1][1][0][0][1];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[1][1][0][1][0];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[1][1][0][1][1];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[1][1][1][0][0];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[1][1][1][0][1];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[1][1][1][1][0];
-  result +=
-      passUint8Struct32BytesInlineArrayMultiDimensionalI_a1.a0[1][1][1][1][1];
-  result += passUint8Struct32BytesInlineArrayMultiDimensionalI_a2;
-  result += passUint8Struct32BytesInlineArrayMultiDimensionalI_a3.a0[0][0][0];
-  result += passUint8Struct32BytesInlineArrayMultiDimensionalI_a3.a0[0][0][1];
-  result += passUint8Struct32BytesInlineArrayMultiDimensionalI_a3.a0[0][1][0];
-  result += passUint8Struct32BytesInlineArrayMultiDimensionalI_a3.a0[0][1][1];
-  result += passUint8Struct32BytesInlineArrayMultiDimensionalI_a3.a0[1][0][0];
-  result += passUint8Struct32BytesInlineArrayMultiDimensionalI_a3.a0[1][0][1];
-  result += passUint8Struct32BytesInlineArrayMultiDimensionalI_a3.a0[1][1][0];
-  result += passUint8Struct32BytesInlineArrayMultiDimensionalI_a3.a0[1][1][1];
-  result += passUint8Struct32BytesInlineArrayMultiDimensionalI_a4;
-  result += passUint8Struct32BytesInlineArrayMultiDimensionalI_a5.a0[0][0][0];
-  result += passUint8Struct32BytesInlineArrayMultiDimensionalI_a5.a0[0][0][1];
-  result += passUint8Struct32BytesInlineArrayMultiDimensionalI_a5.a0[0][1][0];
-  result += passUint8Struct32BytesInlineArrayMultiDimensionalI_a5.a0[0][1][1];
-  result += passUint8Struct32BytesInlineArrayMultiDimensionalI_a5.a0[1][0][0];
-  result += passUint8Struct32BytesInlineArrayMultiDimensionalI_a5.a0[1][0][1];
-  result += passUint8Struct32BytesInlineArrayMultiDimensionalI_a5.a0[1][1][0];
-  result += passUint8Struct32BytesInlineArrayMultiDimensionalI_a5.a0[1][1][1];
-  result += passUint8Struct32BytesInlineArrayMultiDimensionalI_a6;
-
-  passUint8Struct32BytesInlineArrayMultiDimensionalIResult = result;
-
-  return result;
-}
-
-/// Test multi dimensional inline array struct as argument.
-int passUint8Struct32BytesInlineArrayMultiDimensionalI(
-    int a0,
-    Struct32BytesInlineArrayMultiDimensionalInt a1,
-    int a2,
-    Struct8BytesInlineArrayMultiDimensionalInt a3,
-    int a4,
-    Struct8BytesInlineArrayMultiDimensionalInt a5,
-    int a6) {
-  print(
-      "passUint8Struct32BytesInlineArrayMultiDimensionalI(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassUint8Struct32BytesInlineArrayMultiDimensionalI throwing on purpose!");
-  }
-
-  passUint8Struct32BytesInlineArrayMultiDimensionalI_a0 = a0;
-  passUint8Struct32BytesInlineArrayMultiDimensionalI_a1 = a1;
-  passUint8Struct32BytesInlineArrayMultiDimensionalI_a2 = a2;
-  passUint8Struct32BytesInlineArrayMultiDimensionalI_a3 = a3;
-  passUint8Struct32BytesInlineArrayMultiDimensionalI_a4 = a4;
-  passUint8Struct32BytesInlineArrayMultiDimensionalI_a5 = a5;
-  passUint8Struct32BytesInlineArrayMultiDimensionalI_a6 = a6;
-
-  final result =
-      passUint8Struct32BytesInlineArrayMultiDimensionalICalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passUint8Struct32BytesInlineArrayMultiDimensionalIAfterCallback() {
-  final result =
-      passUint8Struct32BytesInlineArrayMultiDimensionalICalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(1378, result);
-}
-
-typedef PassUint8Struct4BytesInlineArrayMultiDimensionalInType = Uint32
-    Function(Uint8, Struct4BytesInlineArrayMultiDimensionalInt, Uint8);
-
-// Global variables to be able to test inputs after callback returned.
-int passUint8Struct4BytesInlineArrayMultiDimensionalIn_a0 = 0;
-Struct4BytesInlineArrayMultiDimensionalInt
-    passUint8Struct4BytesInlineArrayMultiDimensionalIn_a1 =
-    Pointer<Struct4BytesInlineArrayMultiDimensionalInt>.fromAddress(0).ref;
-int passUint8Struct4BytesInlineArrayMultiDimensionalIn_a2 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-int passUint8Struct4BytesInlineArrayMultiDimensionalInResult = 0;
-
-int passUint8Struct4BytesInlineArrayMultiDimensionalInCalculateResult() {
-  int result = 0;
-
-  result += passUint8Struct4BytesInlineArrayMultiDimensionalIn_a0;
-  result += passUint8Struct4BytesInlineArrayMultiDimensionalIn_a1.a0[0][0].a0;
-  result += passUint8Struct4BytesInlineArrayMultiDimensionalIn_a1.a0[0][1].a0;
-  result += passUint8Struct4BytesInlineArrayMultiDimensionalIn_a1.a0[1][0].a0;
-  result += passUint8Struct4BytesInlineArrayMultiDimensionalIn_a1.a0[1][1].a0;
-  result += passUint8Struct4BytesInlineArrayMultiDimensionalIn_a2;
-
-  passUint8Struct4BytesInlineArrayMultiDimensionalInResult = result;
-
-  return result;
-}
-
-/// Test struct in multi dimensional inline array.
-int passUint8Struct4BytesInlineArrayMultiDimensionalIn(
-    int a0, Struct4BytesInlineArrayMultiDimensionalInt a1, int a2) {
-  print(
-      "passUint8Struct4BytesInlineArrayMultiDimensionalIn(${a0}, ${a1}, ${a2})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassUint8Struct4BytesInlineArrayMultiDimensionalIn throwing on purpose!");
-  }
-
-  passUint8Struct4BytesInlineArrayMultiDimensionalIn_a0 = a0;
-  passUint8Struct4BytesInlineArrayMultiDimensionalIn_a1 = a1;
-  passUint8Struct4BytesInlineArrayMultiDimensionalIn_a2 = a2;
-
-  final result =
-      passUint8Struct4BytesInlineArrayMultiDimensionalInCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passUint8Struct4BytesInlineArrayMultiDimensionalInAfterCallback() {
-  final result =
-      passUint8Struct4BytesInlineArrayMultiDimensionalInCalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(5, result);
-}
-
-typedef PassStruct3BytesPackedIntx10Type = Int64 Function(
-    Struct3BytesPackedInt,
-    Struct3BytesPackedInt,
-    Struct3BytesPackedInt,
-    Struct3BytesPackedInt,
-    Struct3BytesPackedInt,
-    Struct3BytesPackedInt,
-    Struct3BytesPackedInt,
-    Struct3BytesPackedInt,
-    Struct3BytesPackedInt,
-    Struct3BytesPackedInt);
-
-// Global variables to be able to test inputs after callback returned.
-Struct3BytesPackedInt passStruct3BytesPackedIntx10_a0 =
-    Pointer<Struct3BytesPackedInt>.fromAddress(0).ref;
-Struct3BytesPackedInt passStruct3BytesPackedIntx10_a1 =
-    Pointer<Struct3BytesPackedInt>.fromAddress(0).ref;
-Struct3BytesPackedInt passStruct3BytesPackedIntx10_a2 =
-    Pointer<Struct3BytesPackedInt>.fromAddress(0).ref;
-Struct3BytesPackedInt passStruct3BytesPackedIntx10_a3 =
-    Pointer<Struct3BytesPackedInt>.fromAddress(0).ref;
-Struct3BytesPackedInt passStruct3BytesPackedIntx10_a4 =
-    Pointer<Struct3BytesPackedInt>.fromAddress(0).ref;
-Struct3BytesPackedInt passStruct3BytesPackedIntx10_a5 =
-    Pointer<Struct3BytesPackedInt>.fromAddress(0).ref;
-Struct3BytesPackedInt passStruct3BytesPackedIntx10_a6 =
-    Pointer<Struct3BytesPackedInt>.fromAddress(0).ref;
-Struct3BytesPackedInt passStruct3BytesPackedIntx10_a7 =
-    Pointer<Struct3BytesPackedInt>.fromAddress(0).ref;
-Struct3BytesPackedInt passStruct3BytesPackedIntx10_a8 =
-    Pointer<Struct3BytesPackedInt>.fromAddress(0).ref;
-Struct3BytesPackedInt passStruct3BytesPackedIntx10_a9 =
-    Pointer<Struct3BytesPackedInt>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStruct3BytesPackedIntx10Result = 0;
-
-int passStruct3BytesPackedIntx10CalculateResult() {
-  int result = 0;
-
-  result += passStruct3BytesPackedIntx10_a0.a0;
-  result += passStruct3BytesPackedIntx10_a0.a1;
-  result += passStruct3BytesPackedIntx10_a1.a0;
-  result += passStruct3BytesPackedIntx10_a1.a1;
-  result += passStruct3BytesPackedIntx10_a2.a0;
-  result += passStruct3BytesPackedIntx10_a2.a1;
-  result += passStruct3BytesPackedIntx10_a3.a0;
-  result += passStruct3BytesPackedIntx10_a3.a1;
-  result += passStruct3BytesPackedIntx10_a4.a0;
-  result += passStruct3BytesPackedIntx10_a4.a1;
-  result += passStruct3BytesPackedIntx10_a5.a0;
-  result += passStruct3BytesPackedIntx10_a5.a1;
-  result += passStruct3BytesPackedIntx10_a6.a0;
-  result += passStruct3BytesPackedIntx10_a6.a1;
-  result += passStruct3BytesPackedIntx10_a7.a0;
-  result += passStruct3BytesPackedIntx10_a7.a1;
-  result += passStruct3BytesPackedIntx10_a8.a0;
-  result += passStruct3BytesPackedIntx10_a8.a1;
-  result += passStruct3BytesPackedIntx10_a9.a0;
-  result += passStruct3BytesPackedIntx10_a9.a1;
-
-  passStruct3BytesPackedIntx10Result = result;
-
-  return result;
-}
-
-/// Small struct with mis-aligned member.
-int passStruct3BytesPackedIntx10(
-    Struct3BytesPackedInt a0,
-    Struct3BytesPackedInt a1,
-    Struct3BytesPackedInt a2,
-    Struct3BytesPackedInt a3,
-    Struct3BytesPackedInt a4,
-    Struct3BytesPackedInt a5,
-    Struct3BytesPackedInt a6,
-    Struct3BytesPackedInt a7,
-    Struct3BytesPackedInt a8,
-    Struct3BytesPackedInt a9) {
-  print(
-      "passStruct3BytesPackedIntx10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct3BytesPackedIntx10 throwing on purpose!");
-  }
-
-  passStruct3BytesPackedIntx10_a0 = a0;
-  passStruct3BytesPackedIntx10_a1 = a1;
-  passStruct3BytesPackedIntx10_a2 = a2;
-  passStruct3BytesPackedIntx10_a3 = a3;
-  passStruct3BytesPackedIntx10_a4 = a4;
-  passStruct3BytesPackedIntx10_a5 = a5;
-  passStruct3BytesPackedIntx10_a6 = a6;
-  passStruct3BytesPackedIntx10_a7 = a7;
-  passStruct3BytesPackedIntx10_a8 = a8;
-  passStruct3BytesPackedIntx10_a9 = a9;
-
-  final result = passStruct3BytesPackedIntx10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct3BytesPackedIntx10AfterCallback() {
-  final result = passStruct3BytesPackedIntx10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(10, result);
-}
-
-typedef PassStruct8BytesPackedIntx10Type = Int64 Function(
-    Struct8BytesPackedInt,
-    Struct8BytesPackedInt,
-    Struct8BytesPackedInt,
-    Struct8BytesPackedInt,
-    Struct8BytesPackedInt,
-    Struct8BytesPackedInt,
-    Struct8BytesPackedInt,
-    Struct8BytesPackedInt,
-    Struct8BytesPackedInt,
-    Struct8BytesPackedInt);
-
-// Global variables to be able to test inputs after callback returned.
-Struct8BytesPackedInt passStruct8BytesPackedIntx10_a0 =
-    Pointer<Struct8BytesPackedInt>.fromAddress(0).ref;
-Struct8BytesPackedInt passStruct8BytesPackedIntx10_a1 =
-    Pointer<Struct8BytesPackedInt>.fromAddress(0).ref;
-Struct8BytesPackedInt passStruct8BytesPackedIntx10_a2 =
-    Pointer<Struct8BytesPackedInt>.fromAddress(0).ref;
-Struct8BytesPackedInt passStruct8BytesPackedIntx10_a3 =
-    Pointer<Struct8BytesPackedInt>.fromAddress(0).ref;
-Struct8BytesPackedInt passStruct8BytesPackedIntx10_a4 =
-    Pointer<Struct8BytesPackedInt>.fromAddress(0).ref;
-Struct8BytesPackedInt passStruct8BytesPackedIntx10_a5 =
-    Pointer<Struct8BytesPackedInt>.fromAddress(0).ref;
-Struct8BytesPackedInt passStruct8BytesPackedIntx10_a6 =
-    Pointer<Struct8BytesPackedInt>.fromAddress(0).ref;
-Struct8BytesPackedInt passStruct8BytesPackedIntx10_a7 =
-    Pointer<Struct8BytesPackedInt>.fromAddress(0).ref;
-Struct8BytesPackedInt passStruct8BytesPackedIntx10_a8 =
-    Pointer<Struct8BytesPackedInt>.fromAddress(0).ref;
-Struct8BytesPackedInt passStruct8BytesPackedIntx10_a9 =
-    Pointer<Struct8BytesPackedInt>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passStruct8BytesPackedIntx10Result = 0;
-
-int passStruct8BytesPackedIntx10CalculateResult() {
-  int result = 0;
-
-  result += passStruct8BytesPackedIntx10_a0.a0;
-  result += passStruct8BytesPackedIntx10_a0.a1;
-  result += passStruct8BytesPackedIntx10_a0.a2;
-  result += passStruct8BytesPackedIntx10_a0.a3;
-  result += passStruct8BytesPackedIntx10_a0.a4;
-  result += passStruct8BytesPackedIntx10_a1.a0;
-  result += passStruct8BytesPackedIntx10_a1.a1;
-  result += passStruct8BytesPackedIntx10_a1.a2;
-  result += passStruct8BytesPackedIntx10_a1.a3;
-  result += passStruct8BytesPackedIntx10_a1.a4;
-  result += passStruct8BytesPackedIntx10_a2.a0;
-  result += passStruct8BytesPackedIntx10_a2.a1;
-  result += passStruct8BytesPackedIntx10_a2.a2;
-  result += passStruct8BytesPackedIntx10_a2.a3;
-  result += passStruct8BytesPackedIntx10_a2.a4;
-  result += passStruct8BytesPackedIntx10_a3.a0;
-  result += passStruct8BytesPackedIntx10_a3.a1;
-  result += passStruct8BytesPackedIntx10_a3.a2;
-  result += passStruct8BytesPackedIntx10_a3.a3;
-  result += passStruct8BytesPackedIntx10_a3.a4;
-  result += passStruct8BytesPackedIntx10_a4.a0;
-  result += passStruct8BytesPackedIntx10_a4.a1;
-  result += passStruct8BytesPackedIntx10_a4.a2;
-  result += passStruct8BytesPackedIntx10_a4.a3;
-  result += passStruct8BytesPackedIntx10_a4.a4;
-  result += passStruct8BytesPackedIntx10_a5.a0;
-  result += passStruct8BytesPackedIntx10_a5.a1;
-  result += passStruct8BytesPackedIntx10_a5.a2;
-  result += passStruct8BytesPackedIntx10_a5.a3;
-  result += passStruct8BytesPackedIntx10_a5.a4;
-  result += passStruct8BytesPackedIntx10_a6.a0;
-  result += passStruct8BytesPackedIntx10_a6.a1;
-  result += passStruct8BytesPackedIntx10_a6.a2;
-  result += passStruct8BytesPackedIntx10_a6.a3;
-  result += passStruct8BytesPackedIntx10_a6.a4;
-  result += passStruct8BytesPackedIntx10_a7.a0;
-  result += passStruct8BytesPackedIntx10_a7.a1;
-  result += passStruct8BytesPackedIntx10_a7.a2;
-  result += passStruct8BytesPackedIntx10_a7.a3;
-  result += passStruct8BytesPackedIntx10_a7.a4;
-  result += passStruct8BytesPackedIntx10_a8.a0;
-  result += passStruct8BytesPackedIntx10_a8.a1;
-  result += passStruct8BytesPackedIntx10_a8.a2;
-  result += passStruct8BytesPackedIntx10_a8.a3;
-  result += passStruct8BytesPackedIntx10_a8.a4;
-  result += passStruct8BytesPackedIntx10_a9.a0;
-  result += passStruct8BytesPackedIntx10_a9.a1;
-  result += passStruct8BytesPackedIntx10_a9.a2;
-  result += passStruct8BytesPackedIntx10_a9.a3;
-  result += passStruct8BytesPackedIntx10_a9.a4;
-
-  passStruct8BytesPackedIntx10Result = result;
-
-  return result;
-}
-
-/// Struct with mis-aligned member.
-int passStruct8BytesPackedIntx10(
-    Struct8BytesPackedInt a0,
-    Struct8BytesPackedInt a1,
-    Struct8BytesPackedInt a2,
-    Struct8BytesPackedInt a3,
-    Struct8BytesPackedInt a4,
-    Struct8BytesPackedInt a5,
-    Struct8BytesPackedInt a6,
-    Struct8BytesPackedInt a7,
-    Struct8BytesPackedInt a8,
-    Struct8BytesPackedInt a9) {
-  print(
-      "passStruct8BytesPackedIntx10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct8BytesPackedIntx10 throwing on purpose!");
-  }
-
-  passStruct8BytesPackedIntx10_a0 = a0;
-  passStruct8BytesPackedIntx10_a1 = a1;
-  passStruct8BytesPackedIntx10_a2 = a2;
-  passStruct8BytesPackedIntx10_a3 = a3;
-  passStruct8BytesPackedIntx10_a4 = a4;
-  passStruct8BytesPackedIntx10_a5 = a5;
-  passStruct8BytesPackedIntx10_a6 = a6;
-  passStruct8BytesPackedIntx10_a7 = a7;
-  passStruct8BytesPackedIntx10_a8 = a8;
-  passStruct8BytesPackedIntx10_a9 = a9;
-
-  final result = passStruct8BytesPackedIntx10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct8BytesPackedIntx10AfterCallback() {
-  final result = passStruct8BytesPackedIntx10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(1275, result);
-}
-
-typedef PassStruct9BytesPackedMixedx10DoubleInt32x2Type = Double Function(
-    Struct9BytesPackedMixed,
-    Struct9BytesPackedMixed,
-    Struct9BytesPackedMixed,
-    Struct9BytesPackedMixed,
-    Struct9BytesPackedMixed,
-    Struct9BytesPackedMixed,
-    Struct9BytesPackedMixed,
-    Struct9BytesPackedMixed,
-    Struct9BytesPackedMixed,
-    Struct9BytesPackedMixed,
-    Double,
-    Int32,
-    Int32);
-
-// Global variables to be able to test inputs after callback returned.
-Struct9BytesPackedMixed passStruct9BytesPackedMixedx10DoubleInt32x2_a0 =
-    Pointer<Struct9BytesPackedMixed>.fromAddress(0).ref;
-Struct9BytesPackedMixed passStruct9BytesPackedMixedx10DoubleInt32x2_a1 =
-    Pointer<Struct9BytesPackedMixed>.fromAddress(0).ref;
-Struct9BytesPackedMixed passStruct9BytesPackedMixedx10DoubleInt32x2_a2 =
-    Pointer<Struct9BytesPackedMixed>.fromAddress(0).ref;
-Struct9BytesPackedMixed passStruct9BytesPackedMixedx10DoubleInt32x2_a3 =
-    Pointer<Struct9BytesPackedMixed>.fromAddress(0).ref;
-Struct9BytesPackedMixed passStruct9BytesPackedMixedx10DoubleInt32x2_a4 =
-    Pointer<Struct9BytesPackedMixed>.fromAddress(0).ref;
-Struct9BytesPackedMixed passStruct9BytesPackedMixedx10DoubleInt32x2_a5 =
-    Pointer<Struct9BytesPackedMixed>.fromAddress(0).ref;
-Struct9BytesPackedMixed passStruct9BytesPackedMixedx10DoubleInt32x2_a6 =
-    Pointer<Struct9BytesPackedMixed>.fromAddress(0).ref;
-Struct9BytesPackedMixed passStruct9BytesPackedMixedx10DoubleInt32x2_a7 =
-    Pointer<Struct9BytesPackedMixed>.fromAddress(0).ref;
-Struct9BytesPackedMixed passStruct9BytesPackedMixedx10DoubleInt32x2_a8 =
-    Pointer<Struct9BytesPackedMixed>.fromAddress(0).ref;
-Struct9BytesPackedMixed passStruct9BytesPackedMixedx10DoubleInt32x2_a9 =
-    Pointer<Struct9BytesPackedMixed>.fromAddress(0).ref;
-double passStruct9BytesPackedMixedx10DoubleInt32x2_a10 = 0.0;
-int passStruct9BytesPackedMixedx10DoubleInt32x2_a11 = 0;
-int passStruct9BytesPackedMixedx10DoubleInt32x2_a12 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-double passStruct9BytesPackedMixedx10DoubleInt32x2Result = 0.0;
-
-double passStruct9BytesPackedMixedx10DoubleInt32x2CalculateResult() {
-  double result = 0;
-
-  result += passStruct9BytesPackedMixedx10DoubleInt32x2_a0.a0;
-  result += passStruct9BytesPackedMixedx10DoubleInt32x2_a0.a1;
-  result += passStruct9BytesPackedMixedx10DoubleInt32x2_a1.a0;
-  result += passStruct9BytesPackedMixedx10DoubleInt32x2_a1.a1;
-  result += passStruct9BytesPackedMixedx10DoubleInt32x2_a2.a0;
-  result += passStruct9BytesPackedMixedx10DoubleInt32x2_a2.a1;
-  result += passStruct9BytesPackedMixedx10DoubleInt32x2_a3.a0;
-  result += passStruct9BytesPackedMixedx10DoubleInt32x2_a3.a1;
-  result += passStruct9BytesPackedMixedx10DoubleInt32x2_a4.a0;
-  result += passStruct9BytesPackedMixedx10DoubleInt32x2_a4.a1;
-  result += passStruct9BytesPackedMixedx10DoubleInt32x2_a5.a0;
-  result += passStruct9BytesPackedMixedx10DoubleInt32x2_a5.a1;
-  result += passStruct9BytesPackedMixedx10DoubleInt32x2_a6.a0;
-  result += passStruct9BytesPackedMixedx10DoubleInt32x2_a6.a1;
-  result += passStruct9BytesPackedMixedx10DoubleInt32x2_a7.a0;
-  result += passStruct9BytesPackedMixedx10DoubleInt32x2_a7.a1;
-  result += passStruct9BytesPackedMixedx10DoubleInt32x2_a8.a0;
-  result += passStruct9BytesPackedMixedx10DoubleInt32x2_a8.a1;
-  result += passStruct9BytesPackedMixedx10DoubleInt32x2_a9.a0;
-  result += passStruct9BytesPackedMixedx10DoubleInt32x2_a9.a1;
-  result += passStruct9BytesPackedMixedx10DoubleInt32x2_a10;
-  result += passStruct9BytesPackedMixedx10DoubleInt32x2_a11;
-  result += passStruct9BytesPackedMixedx10DoubleInt32x2_a12;
-
-  passStruct9BytesPackedMixedx10DoubleInt32x2Result = result;
-
-  return result;
-}
-
-/// Struct with mis-aligned member.
-/// Tests backfilling of CPU and FPU registers.
-double passStruct9BytesPackedMixedx10DoubleInt32x2(
-    Struct9BytesPackedMixed a0,
-    Struct9BytesPackedMixed a1,
-    Struct9BytesPackedMixed a2,
-    Struct9BytesPackedMixed a3,
-    Struct9BytesPackedMixed a4,
-    Struct9BytesPackedMixed a5,
-    Struct9BytesPackedMixed a6,
-    Struct9BytesPackedMixed a7,
-    Struct9BytesPackedMixed a8,
-    Struct9BytesPackedMixed a9,
-    double a10,
-    int a11,
-    int a12) {
-  print(
-      "passStruct9BytesPackedMixedx10DoubleInt32x2(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9}, ${a10}, ${a11}, ${a12})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassStruct9BytesPackedMixedx10DoubleInt32x2 throwing on purpose!");
-  }
-
-  passStruct9BytesPackedMixedx10DoubleInt32x2_a0 = a0;
-  passStruct9BytesPackedMixedx10DoubleInt32x2_a1 = a1;
-  passStruct9BytesPackedMixedx10DoubleInt32x2_a2 = a2;
-  passStruct9BytesPackedMixedx10DoubleInt32x2_a3 = a3;
-  passStruct9BytesPackedMixedx10DoubleInt32x2_a4 = a4;
-  passStruct9BytesPackedMixedx10DoubleInt32x2_a5 = a5;
-  passStruct9BytesPackedMixedx10DoubleInt32x2_a6 = a6;
-  passStruct9BytesPackedMixedx10DoubleInt32x2_a7 = a7;
-  passStruct9BytesPackedMixedx10DoubleInt32x2_a8 = a8;
-  passStruct9BytesPackedMixedx10DoubleInt32x2_a9 = a9;
-  passStruct9BytesPackedMixedx10DoubleInt32x2_a10 = a10;
-  passStruct9BytesPackedMixedx10DoubleInt32x2_a11 = a11;
-  passStruct9BytesPackedMixedx10DoubleInt32x2_a12 = a12;
-
-  final result = passStruct9BytesPackedMixedx10DoubleInt32x2CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct9BytesPackedMixedx10DoubleInt32x2AfterCallback() {
-  final result = passStruct9BytesPackedMixedx10DoubleInt32x2CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(188.0, result);
-}
-
-typedef PassStruct5BytesPackedMixedType = Double Function(
-    Struct5BytesPackedMixed);
-
-// Global variables to be able to test inputs after callback returned.
-Struct5BytesPackedMixed passStruct5BytesPackedMixed_a0 =
-    Pointer<Struct5BytesPackedMixed>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passStruct5BytesPackedMixedResult = 0.0;
-
-double passStruct5BytesPackedMixedCalculateResult() {
-  double result = 0;
-
-  result += passStruct5BytesPackedMixed_a0.a0;
-  result += passStruct5BytesPackedMixed_a0.a1;
-
-  passStruct5BytesPackedMixedResult = result;
-
-  return result;
-}
-
-/// This packed struct happens to have only aligned members.
-double passStruct5BytesPackedMixed(Struct5BytesPackedMixed a0) {
-  print("passStruct5BytesPackedMixed(${a0})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct5BytesPackedMixed throwing on purpose!");
-  }
-
-  passStruct5BytesPackedMixed_a0 = a0;
-
-  final result = passStruct5BytesPackedMixedCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct5BytesPackedMixedAfterCallback() {
-  final result = passStruct5BytesPackedMixedCalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(1.0, result);
-}
-
-typedef PassStructNestedAlignmentStruct5BytesPackedMixedType = Double Function(
-    StructNestedAlignmentStruct5BytesPackedMixed);
-
-// Global variables to be able to test inputs after callback returned.
-StructNestedAlignmentStruct5BytesPackedMixed
-    passStructNestedAlignmentStruct5BytesPackedMixed_a0 =
-    Pointer<StructNestedAlignmentStruct5BytesPackedMixed>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passStructNestedAlignmentStruct5BytesPackedMixedResult = 0.0;
-
-double passStructNestedAlignmentStruct5BytesPackedMixedCalculateResult() {
-  double result = 0;
-
-  result += passStructNestedAlignmentStruct5BytesPackedMixed_a0.a0;
-  result += passStructNestedAlignmentStruct5BytesPackedMixed_a0.a1.a0;
-  result += passStructNestedAlignmentStruct5BytesPackedMixed_a0.a1.a1;
-
-  passStructNestedAlignmentStruct5BytesPackedMixedResult = result;
-
-  return result;
-}
-
-/// Check alignment of packed struct in non-packed struct.
-double passStructNestedAlignmentStruct5BytesPackedMixed(
-    StructNestedAlignmentStruct5BytesPackedMixed a0) {
-  print("passStructNestedAlignmentStruct5BytesPackedMixed(${a0})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassStructNestedAlignmentStruct5BytesPackedMixed throwing on purpose!");
-  }
-
-  passStructNestedAlignmentStruct5BytesPackedMixed_a0 = a0;
-
-  final result =
-      passStructNestedAlignmentStruct5BytesPackedMixedCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStructNestedAlignmentStruct5BytesPackedMixedAfterCallback() {
-  final result =
-      passStructNestedAlignmentStruct5BytesPackedMixedCalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(6.0, result);
-}
-
-typedef PassStruct6BytesInlineArrayIntType = Double Function(
-    Struct6BytesInlineArrayInt);
-
-// Global variables to be able to test inputs after callback returned.
-Struct6BytesInlineArrayInt passStruct6BytesInlineArrayInt_a0 =
-    Pointer<Struct6BytesInlineArrayInt>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passStruct6BytesInlineArrayIntResult = 0.0;
-
-double passStruct6BytesInlineArrayIntCalculateResult() {
-  double result = 0;
-
-  result += passStruct6BytesInlineArrayInt_a0.a0[0].a0;
-  result += passStruct6BytesInlineArrayInt_a0.a0[0].a1;
-  result += passStruct6BytesInlineArrayInt_a0.a0[1].a0;
-  result += passStruct6BytesInlineArrayInt_a0.a0[1].a1;
-
-  passStruct6BytesInlineArrayIntResult = result;
-
-  return result;
-}
-
-/// Check alignment of packed struct array in non-packed struct.
-double passStruct6BytesInlineArrayInt(Struct6BytesInlineArrayInt a0) {
-  print("passStruct6BytesInlineArrayInt(${a0})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0[0].a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0[0].a0 == 42 || a0.a0[0].a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct6BytesInlineArrayInt throwing on purpose!");
-  }
-
-  passStruct6BytesInlineArrayInt_a0 = a0;
-
-  final result = passStruct6BytesInlineArrayIntCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct6BytesInlineArrayIntAfterCallback() {
-  final result = passStruct6BytesInlineArrayIntCalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(2.0, result);
-}
-
-typedef PassStruct15BytesInlineArrayMixedType = Double Function(
-    Struct15BytesInlineArrayMixed);
-
-// Global variables to be able to test inputs after callback returned.
-Struct15BytesInlineArrayMixed passStruct15BytesInlineArrayMixed_a0 =
-    Pointer<Struct15BytesInlineArrayMixed>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passStruct15BytesInlineArrayMixedResult = 0.0;
-
-double passStruct15BytesInlineArrayMixedCalculateResult() {
-  double result = 0;
-
-  result += passStruct15BytesInlineArrayMixed_a0.a0[0].a0;
-  result += passStruct15BytesInlineArrayMixed_a0.a0[0].a1;
-  result += passStruct15BytesInlineArrayMixed_a0.a0[1].a0;
-  result += passStruct15BytesInlineArrayMixed_a0.a0[1].a1;
-  result += passStruct15BytesInlineArrayMixed_a0.a0[2].a0;
-  result += passStruct15BytesInlineArrayMixed_a0.a0[2].a1;
-
-  passStruct15BytesInlineArrayMixedResult = result;
-
-  return result;
-}
-
-/// Check alignment of packed struct array in non-packed struct.
-double passStruct15BytesInlineArrayMixed(Struct15BytesInlineArrayMixed a0) {
-  print("passStruct15BytesInlineArrayMixed(${a0})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0[0].a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0[0].a0 == 42 || a0.a0[0].a0 == 84) {
-    print("throwing!");
-    throw Exception("PassStruct15BytesInlineArrayMixed throwing on purpose!");
-  }
-
-  passStruct15BytesInlineArrayMixed_a0 = a0;
-
-  final result = passStruct15BytesInlineArrayMixedCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passStruct15BytesInlineArrayMixedAfterCallback() {
-  final result = passStruct15BytesInlineArrayMixedCalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(3.0, result);
-}
-
-typedef PassUnion4BytesMixedx10Type = Double Function(
-    Union4BytesMixed,
-    Union4BytesMixed,
-    Union4BytesMixed,
-    Union4BytesMixed,
-    Union4BytesMixed,
-    Union4BytesMixed,
-    Union4BytesMixed,
-    Union4BytesMixed,
-    Union4BytesMixed,
-    Union4BytesMixed);
-
-// Global variables to be able to test inputs after callback returned.
-Union4BytesMixed passUnion4BytesMixedx10_a0 =
-    Pointer<Union4BytesMixed>.fromAddress(0).ref;
-Union4BytesMixed passUnion4BytesMixedx10_a1 =
-    Pointer<Union4BytesMixed>.fromAddress(0).ref;
-Union4BytesMixed passUnion4BytesMixedx10_a2 =
-    Pointer<Union4BytesMixed>.fromAddress(0).ref;
-Union4BytesMixed passUnion4BytesMixedx10_a3 =
-    Pointer<Union4BytesMixed>.fromAddress(0).ref;
-Union4BytesMixed passUnion4BytesMixedx10_a4 =
-    Pointer<Union4BytesMixed>.fromAddress(0).ref;
-Union4BytesMixed passUnion4BytesMixedx10_a5 =
-    Pointer<Union4BytesMixed>.fromAddress(0).ref;
-Union4BytesMixed passUnion4BytesMixedx10_a6 =
-    Pointer<Union4BytesMixed>.fromAddress(0).ref;
-Union4BytesMixed passUnion4BytesMixedx10_a7 =
-    Pointer<Union4BytesMixed>.fromAddress(0).ref;
-Union4BytesMixed passUnion4BytesMixedx10_a8 =
-    Pointer<Union4BytesMixed>.fromAddress(0).ref;
-Union4BytesMixed passUnion4BytesMixedx10_a9 =
-    Pointer<Union4BytesMixed>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passUnion4BytesMixedx10Result = 0.0;
-
-double passUnion4BytesMixedx10CalculateResult() {
-  double result = 0;
-
-  result += passUnion4BytesMixedx10_a0.a0;
-  result += passUnion4BytesMixedx10_a1.a0;
-  result += passUnion4BytesMixedx10_a2.a0;
-  result += passUnion4BytesMixedx10_a3.a0;
-  result += passUnion4BytesMixedx10_a4.a0;
-  result += passUnion4BytesMixedx10_a5.a0;
-  result += passUnion4BytesMixedx10_a6.a0;
-  result += passUnion4BytesMixedx10_a7.a0;
-  result += passUnion4BytesMixedx10_a8.a0;
-  result += passUnion4BytesMixedx10_a9.a0;
-
-  passUnion4BytesMixedx10Result = result;
-
-  return result;
-}
-
-/// Check placement of mixed integer/float union.
-double passUnion4BytesMixedx10(
-    Union4BytesMixed a0,
-    Union4BytesMixed a1,
-    Union4BytesMixed a2,
-    Union4BytesMixed a3,
-    Union4BytesMixed a4,
-    Union4BytesMixed a5,
-    Union4BytesMixed a6,
-    Union4BytesMixed a7,
-    Union4BytesMixed a8,
-    Union4BytesMixed a9) {
-  print(
-      "passUnion4BytesMixedx10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassUnion4BytesMixedx10 throwing on purpose!");
-  }
-
-  passUnion4BytesMixedx10_a0 = a0;
-  passUnion4BytesMixedx10_a1 = a1;
-  passUnion4BytesMixedx10_a2 = a2;
-  passUnion4BytesMixedx10_a3 = a3;
-  passUnion4BytesMixedx10_a4 = a4;
-  passUnion4BytesMixedx10_a5 = a5;
-  passUnion4BytesMixedx10_a6 = a6;
-  passUnion4BytesMixedx10_a7 = a7;
-  passUnion4BytesMixedx10_a8 = a8;
-  passUnion4BytesMixedx10_a9 = a9;
-
-  final result = passUnion4BytesMixedx10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passUnion4BytesMixedx10AfterCallback() {
-  final result = passUnion4BytesMixedx10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(55.0, result);
-}
-
-typedef PassUnion8BytesNestedFloatx10Type = Double Function(
-    Union8BytesNestedFloat,
-    Union8BytesNestedFloat,
-    Union8BytesNestedFloat,
-    Union8BytesNestedFloat,
-    Union8BytesNestedFloat,
-    Union8BytesNestedFloat,
-    Union8BytesNestedFloat,
-    Union8BytesNestedFloat,
-    Union8BytesNestedFloat,
-    Union8BytesNestedFloat);
-
-// Global variables to be able to test inputs after callback returned.
-Union8BytesNestedFloat passUnion8BytesNestedFloatx10_a0 =
-    Pointer<Union8BytesNestedFloat>.fromAddress(0).ref;
-Union8BytesNestedFloat passUnion8BytesNestedFloatx10_a1 =
-    Pointer<Union8BytesNestedFloat>.fromAddress(0).ref;
-Union8BytesNestedFloat passUnion8BytesNestedFloatx10_a2 =
-    Pointer<Union8BytesNestedFloat>.fromAddress(0).ref;
-Union8BytesNestedFloat passUnion8BytesNestedFloatx10_a3 =
-    Pointer<Union8BytesNestedFloat>.fromAddress(0).ref;
-Union8BytesNestedFloat passUnion8BytesNestedFloatx10_a4 =
-    Pointer<Union8BytesNestedFloat>.fromAddress(0).ref;
-Union8BytesNestedFloat passUnion8BytesNestedFloatx10_a5 =
-    Pointer<Union8BytesNestedFloat>.fromAddress(0).ref;
-Union8BytesNestedFloat passUnion8BytesNestedFloatx10_a6 =
-    Pointer<Union8BytesNestedFloat>.fromAddress(0).ref;
-Union8BytesNestedFloat passUnion8BytesNestedFloatx10_a7 =
-    Pointer<Union8BytesNestedFloat>.fromAddress(0).ref;
-Union8BytesNestedFloat passUnion8BytesNestedFloatx10_a8 =
-    Pointer<Union8BytesNestedFloat>.fromAddress(0).ref;
-Union8BytesNestedFloat passUnion8BytesNestedFloatx10_a9 =
-    Pointer<Union8BytesNestedFloat>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passUnion8BytesNestedFloatx10Result = 0.0;
-
-double passUnion8BytesNestedFloatx10CalculateResult() {
-  double result = 0;
-
-  result += passUnion8BytesNestedFloatx10_a0.a0;
-  result += passUnion8BytesNestedFloatx10_a1.a0;
-  result += passUnion8BytesNestedFloatx10_a2.a0;
-  result += passUnion8BytesNestedFloatx10_a3.a0;
-  result += passUnion8BytesNestedFloatx10_a4.a0;
-  result += passUnion8BytesNestedFloatx10_a5.a0;
-  result += passUnion8BytesNestedFloatx10_a6.a0;
-  result += passUnion8BytesNestedFloatx10_a7.a0;
-  result += passUnion8BytesNestedFloatx10_a8.a0;
-  result += passUnion8BytesNestedFloatx10_a9.a0;
-
-  passUnion8BytesNestedFloatx10Result = result;
-
-  return result;
-}
-
-/// Check placement of mixed floats union.
-double passUnion8BytesNestedFloatx10(
-    Union8BytesNestedFloat a0,
-    Union8BytesNestedFloat a1,
-    Union8BytesNestedFloat a2,
-    Union8BytesNestedFloat a3,
-    Union8BytesNestedFloat a4,
-    Union8BytesNestedFloat a5,
-    Union8BytesNestedFloat a6,
-    Union8BytesNestedFloat a7,
-    Union8BytesNestedFloat a8,
-    Union8BytesNestedFloat a9) {
-  print(
-      "passUnion8BytesNestedFloatx10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassUnion8BytesNestedFloatx10 throwing on purpose!");
-  }
-
-  passUnion8BytesNestedFloatx10_a0 = a0;
-  passUnion8BytesNestedFloatx10_a1 = a1;
-  passUnion8BytesNestedFloatx10_a2 = a2;
-  passUnion8BytesNestedFloatx10_a3 = a3;
-  passUnion8BytesNestedFloatx10_a4 = a4;
-  passUnion8BytesNestedFloatx10_a5 = a5;
-  passUnion8BytesNestedFloatx10_a6 = a6;
-  passUnion8BytesNestedFloatx10_a7 = a7;
-  passUnion8BytesNestedFloatx10_a8 = a8;
-  passUnion8BytesNestedFloatx10_a9 = a9;
-
-  final result = passUnion8BytesNestedFloatx10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passUnion8BytesNestedFloatx10AfterCallback() {
-  final result = passUnion8BytesNestedFloatx10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(5.0, result);
-}
-
-typedef PassUnion9BytesNestedIntx10Type = Double Function(
-    Union9BytesNestedInt,
-    Union9BytesNestedInt,
-    Union9BytesNestedInt,
-    Union9BytesNestedInt,
-    Union9BytesNestedInt,
-    Union9BytesNestedInt,
-    Union9BytesNestedInt,
-    Union9BytesNestedInt,
-    Union9BytesNestedInt,
-    Union9BytesNestedInt);
-
-// Global variables to be able to test inputs after callback returned.
-Union9BytesNestedInt passUnion9BytesNestedIntx10_a0 =
-    Pointer<Union9BytesNestedInt>.fromAddress(0).ref;
-Union9BytesNestedInt passUnion9BytesNestedIntx10_a1 =
-    Pointer<Union9BytesNestedInt>.fromAddress(0).ref;
-Union9BytesNestedInt passUnion9BytesNestedIntx10_a2 =
-    Pointer<Union9BytesNestedInt>.fromAddress(0).ref;
-Union9BytesNestedInt passUnion9BytesNestedIntx10_a3 =
-    Pointer<Union9BytesNestedInt>.fromAddress(0).ref;
-Union9BytesNestedInt passUnion9BytesNestedIntx10_a4 =
-    Pointer<Union9BytesNestedInt>.fromAddress(0).ref;
-Union9BytesNestedInt passUnion9BytesNestedIntx10_a5 =
-    Pointer<Union9BytesNestedInt>.fromAddress(0).ref;
-Union9BytesNestedInt passUnion9BytesNestedIntx10_a6 =
-    Pointer<Union9BytesNestedInt>.fromAddress(0).ref;
-Union9BytesNestedInt passUnion9BytesNestedIntx10_a7 =
-    Pointer<Union9BytesNestedInt>.fromAddress(0).ref;
-Union9BytesNestedInt passUnion9BytesNestedIntx10_a8 =
-    Pointer<Union9BytesNestedInt>.fromAddress(0).ref;
-Union9BytesNestedInt passUnion9BytesNestedIntx10_a9 =
-    Pointer<Union9BytesNestedInt>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passUnion9BytesNestedIntx10Result = 0.0;
-
-double passUnion9BytesNestedIntx10CalculateResult() {
-  double result = 0;
-
-  result += passUnion9BytesNestedIntx10_a0.a0.a0;
-  result += passUnion9BytesNestedIntx10_a0.a0.a1;
-  result += passUnion9BytesNestedIntx10_a0.a0.a2;
-  result += passUnion9BytesNestedIntx10_a1.a0.a0;
-  result += passUnion9BytesNestedIntx10_a1.a0.a1;
-  result += passUnion9BytesNestedIntx10_a1.a0.a2;
-  result += passUnion9BytesNestedIntx10_a2.a0.a0;
-  result += passUnion9BytesNestedIntx10_a2.a0.a1;
-  result += passUnion9BytesNestedIntx10_a2.a0.a2;
-  result += passUnion9BytesNestedIntx10_a3.a0.a0;
-  result += passUnion9BytesNestedIntx10_a3.a0.a1;
-  result += passUnion9BytesNestedIntx10_a3.a0.a2;
-  result += passUnion9BytesNestedIntx10_a4.a0.a0;
-  result += passUnion9BytesNestedIntx10_a4.a0.a1;
-  result += passUnion9BytesNestedIntx10_a4.a0.a2;
-  result += passUnion9BytesNestedIntx10_a5.a0.a0;
-  result += passUnion9BytesNestedIntx10_a5.a0.a1;
-  result += passUnion9BytesNestedIntx10_a5.a0.a2;
-  result += passUnion9BytesNestedIntx10_a6.a0.a0;
-  result += passUnion9BytesNestedIntx10_a6.a0.a1;
-  result += passUnion9BytesNestedIntx10_a6.a0.a2;
-  result += passUnion9BytesNestedIntx10_a7.a0.a0;
-  result += passUnion9BytesNestedIntx10_a7.a0.a1;
-  result += passUnion9BytesNestedIntx10_a7.a0.a2;
-  result += passUnion9BytesNestedIntx10_a8.a0.a0;
-  result += passUnion9BytesNestedIntx10_a8.a0.a1;
-  result += passUnion9BytesNestedIntx10_a8.a0.a2;
-  result += passUnion9BytesNestedIntx10_a9.a0.a0;
-  result += passUnion9BytesNestedIntx10_a9.a0.a1;
-  result += passUnion9BytesNestedIntx10_a9.a0.a2;
-
-  passUnion9BytesNestedIntx10Result = result;
-
-  return result;
-}
-
-/// Mixed-size union argument.
-double passUnion9BytesNestedIntx10(
-    Union9BytesNestedInt a0,
-    Union9BytesNestedInt a1,
-    Union9BytesNestedInt a2,
-    Union9BytesNestedInt a3,
-    Union9BytesNestedInt a4,
-    Union9BytesNestedInt a5,
-    Union9BytesNestedInt a6,
-    Union9BytesNestedInt a7,
-    Union9BytesNestedInt a8,
-    Union9BytesNestedInt a9) {
-  print(
-      "passUnion9BytesNestedIntx10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0.a0 == 42 || a0.a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassUnion9BytesNestedIntx10 throwing on purpose!");
-  }
-
-  passUnion9BytesNestedIntx10_a0 = a0;
-  passUnion9BytesNestedIntx10_a1 = a1;
-  passUnion9BytesNestedIntx10_a2 = a2;
-  passUnion9BytesNestedIntx10_a3 = a3;
-  passUnion9BytesNestedIntx10_a4 = a4;
-  passUnion9BytesNestedIntx10_a5 = a5;
-  passUnion9BytesNestedIntx10_a6 = a6;
-  passUnion9BytesNestedIntx10_a7 = a7;
-  passUnion9BytesNestedIntx10_a8 = a8;
-  passUnion9BytesNestedIntx10_a9 = a9;
-
-  final result = passUnion9BytesNestedIntx10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passUnion9BytesNestedIntx10AfterCallback() {
-  final result = passUnion9BytesNestedIntx10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(15.0, result);
-}
-
-typedef PassUnion16BytesNestedInlineArrayFloatx10Type = Double Function(
-    Union16BytesNestedInlineArrayFloat,
-    Union16BytesNestedInlineArrayFloat,
-    Union16BytesNestedInlineArrayFloat,
-    Union16BytesNestedInlineArrayFloat,
-    Union16BytesNestedInlineArrayFloat,
-    Union16BytesNestedInlineArrayFloat,
-    Union16BytesNestedInlineArrayFloat,
-    Union16BytesNestedInlineArrayFloat,
-    Union16BytesNestedInlineArrayFloat,
-    Union16BytesNestedInlineArrayFloat);
-
-// Global variables to be able to test inputs after callback returned.
-Union16BytesNestedInlineArrayFloat
-    passUnion16BytesNestedInlineArrayFloatx10_a0 =
-    Pointer<Union16BytesNestedInlineArrayFloat>.fromAddress(0).ref;
-Union16BytesNestedInlineArrayFloat
-    passUnion16BytesNestedInlineArrayFloatx10_a1 =
-    Pointer<Union16BytesNestedInlineArrayFloat>.fromAddress(0).ref;
-Union16BytesNestedInlineArrayFloat
-    passUnion16BytesNestedInlineArrayFloatx10_a2 =
-    Pointer<Union16BytesNestedInlineArrayFloat>.fromAddress(0).ref;
-Union16BytesNestedInlineArrayFloat
-    passUnion16BytesNestedInlineArrayFloatx10_a3 =
-    Pointer<Union16BytesNestedInlineArrayFloat>.fromAddress(0).ref;
-Union16BytesNestedInlineArrayFloat
-    passUnion16BytesNestedInlineArrayFloatx10_a4 =
-    Pointer<Union16BytesNestedInlineArrayFloat>.fromAddress(0).ref;
-Union16BytesNestedInlineArrayFloat
-    passUnion16BytesNestedInlineArrayFloatx10_a5 =
-    Pointer<Union16BytesNestedInlineArrayFloat>.fromAddress(0).ref;
-Union16BytesNestedInlineArrayFloat
-    passUnion16BytesNestedInlineArrayFloatx10_a6 =
-    Pointer<Union16BytesNestedInlineArrayFloat>.fromAddress(0).ref;
-Union16BytesNestedInlineArrayFloat
-    passUnion16BytesNestedInlineArrayFloatx10_a7 =
-    Pointer<Union16BytesNestedInlineArrayFloat>.fromAddress(0).ref;
-Union16BytesNestedInlineArrayFloat
-    passUnion16BytesNestedInlineArrayFloatx10_a8 =
-    Pointer<Union16BytesNestedInlineArrayFloat>.fromAddress(0).ref;
-Union16BytesNestedInlineArrayFloat
-    passUnion16BytesNestedInlineArrayFloatx10_a9 =
-    Pointer<Union16BytesNestedInlineArrayFloat>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passUnion16BytesNestedInlineArrayFloatx10Result = 0.0;
-
-double passUnion16BytesNestedInlineArrayFloatx10CalculateResult() {
-  double result = 0;
-
-  result += passUnion16BytesNestedInlineArrayFloatx10_a0.a0[0];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a0.a0[1];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a0.a0[2];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a0.a0[3];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a1.a0[0];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a1.a0[1];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a1.a0[2];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a1.a0[3];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a2.a0[0];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a2.a0[1];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a2.a0[2];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a2.a0[3];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a3.a0[0];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a3.a0[1];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a3.a0[2];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a3.a0[3];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a4.a0[0];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a4.a0[1];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a4.a0[2];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a4.a0[3];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a5.a0[0];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a5.a0[1];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a5.a0[2];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a5.a0[3];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a6.a0[0];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a6.a0[1];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a6.a0[2];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a6.a0[3];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a7.a0[0];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a7.a0[1];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a7.a0[2];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a7.a0[3];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a8.a0[0];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a8.a0[1];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a8.a0[2];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a8.a0[3];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a9.a0[0];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a9.a0[1];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a9.a0[2];
-  result += passUnion16BytesNestedInlineArrayFloatx10_a9.a0[3];
-
-  passUnion16BytesNestedInlineArrayFloatx10Result = result;
-
-  return result;
-}
-
-/// Union with homogenous floats.
-double passUnion16BytesNestedInlineArrayFloatx10(
-    Union16BytesNestedInlineArrayFloat a0,
-    Union16BytesNestedInlineArrayFloat a1,
-    Union16BytesNestedInlineArrayFloat a2,
-    Union16BytesNestedInlineArrayFloat a3,
-    Union16BytesNestedInlineArrayFloat a4,
-    Union16BytesNestedInlineArrayFloat a5,
-    Union16BytesNestedInlineArrayFloat a6,
-    Union16BytesNestedInlineArrayFloat a7,
-    Union16BytesNestedInlineArrayFloat a8,
-    Union16BytesNestedInlineArrayFloat a9) {
-  print(
-      "passUnion16BytesNestedInlineArrayFloatx10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0[0] == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0[0] == 42 || a0.a0[0] == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassUnion16BytesNestedInlineArrayFloatx10 throwing on purpose!");
-  }
-
-  passUnion16BytesNestedInlineArrayFloatx10_a0 = a0;
-  passUnion16BytesNestedInlineArrayFloatx10_a1 = a1;
-  passUnion16BytesNestedInlineArrayFloatx10_a2 = a2;
-  passUnion16BytesNestedInlineArrayFloatx10_a3 = a3;
-  passUnion16BytesNestedInlineArrayFloatx10_a4 = a4;
-  passUnion16BytesNestedInlineArrayFloatx10_a5 = a5;
-  passUnion16BytesNestedInlineArrayFloatx10_a6 = a6;
-  passUnion16BytesNestedInlineArrayFloatx10_a7 = a7;
-  passUnion16BytesNestedInlineArrayFloatx10_a8 = a8;
-  passUnion16BytesNestedInlineArrayFloatx10_a9 = a9;
-
-  final result = passUnion16BytesNestedInlineArrayFloatx10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passUnion16BytesNestedInlineArrayFloatx10AfterCallback() {
-  final result = passUnion16BytesNestedInlineArrayFloatx10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(20.0, result);
-}
-
-typedef PassUnion16BytesNestedFloatx10Type = Double Function(
-    Union16BytesNestedFloat,
-    Union16BytesNestedFloat,
-    Union16BytesNestedFloat,
-    Union16BytesNestedFloat,
-    Union16BytesNestedFloat,
-    Union16BytesNestedFloat,
-    Union16BytesNestedFloat,
-    Union16BytesNestedFloat,
-    Union16BytesNestedFloat,
-    Union16BytesNestedFloat);
-
-// Global variables to be able to test inputs after callback returned.
-Union16BytesNestedFloat passUnion16BytesNestedFloatx10_a0 =
-    Pointer<Union16BytesNestedFloat>.fromAddress(0).ref;
-Union16BytesNestedFloat passUnion16BytesNestedFloatx10_a1 =
-    Pointer<Union16BytesNestedFloat>.fromAddress(0).ref;
-Union16BytesNestedFloat passUnion16BytesNestedFloatx10_a2 =
-    Pointer<Union16BytesNestedFloat>.fromAddress(0).ref;
-Union16BytesNestedFloat passUnion16BytesNestedFloatx10_a3 =
-    Pointer<Union16BytesNestedFloat>.fromAddress(0).ref;
-Union16BytesNestedFloat passUnion16BytesNestedFloatx10_a4 =
-    Pointer<Union16BytesNestedFloat>.fromAddress(0).ref;
-Union16BytesNestedFloat passUnion16BytesNestedFloatx10_a5 =
-    Pointer<Union16BytesNestedFloat>.fromAddress(0).ref;
-Union16BytesNestedFloat passUnion16BytesNestedFloatx10_a6 =
-    Pointer<Union16BytesNestedFloat>.fromAddress(0).ref;
-Union16BytesNestedFloat passUnion16BytesNestedFloatx10_a7 =
-    Pointer<Union16BytesNestedFloat>.fromAddress(0).ref;
-Union16BytesNestedFloat passUnion16BytesNestedFloatx10_a8 =
-    Pointer<Union16BytesNestedFloat>.fromAddress(0).ref;
-Union16BytesNestedFloat passUnion16BytesNestedFloatx10_a9 =
-    Pointer<Union16BytesNestedFloat>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-double passUnion16BytesNestedFloatx10Result = 0.0;
-
-double passUnion16BytesNestedFloatx10CalculateResult() {
-  double result = 0;
-
-  result += passUnion16BytesNestedFloatx10_a0.a0.a0;
-  result += passUnion16BytesNestedFloatx10_a0.a0.a1;
-  result += passUnion16BytesNestedFloatx10_a1.a0.a0;
-  result += passUnion16BytesNestedFloatx10_a1.a0.a1;
-  result += passUnion16BytesNestedFloatx10_a2.a0.a0;
-  result += passUnion16BytesNestedFloatx10_a2.a0.a1;
-  result += passUnion16BytesNestedFloatx10_a3.a0.a0;
-  result += passUnion16BytesNestedFloatx10_a3.a0.a1;
-  result += passUnion16BytesNestedFloatx10_a4.a0.a0;
-  result += passUnion16BytesNestedFloatx10_a4.a0.a1;
-  result += passUnion16BytesNestedFloatx10_a5.a0.a0;
-  result += passUnion16BytesNestedFloatx10_a5.a0.a1;
-  result += passUnion16BytesNestedFloatx10_a6.a0.a0;
-  result += passUnion16BytesNestedFloatx10_a6.a0.a1;
-  result += passUnion16BytesNestedFloatx10_a7.a0.a0;
-  result += passUnion16BytesNestedFloatx10_a7.a0.a1;
-  result += passUnion16BytesNestedFloatx10_a8.a0.a0;
-  result += passUnion16BytesNestedFloatx10_a8.a0.a1;
-  result += passUnion16BytesNestedFloatx10_a9.a0.a0;
-  result += passUnion16BytesNestedFloatx10_a9.a0.a1;
-
-  passUnion16BytesNestedFloatx10Result = result;
-
-  return result;
-}
-
-/// Union with homogenous floats.
-double passUnion16BytesNestedFloatx10(
-    Union16BytesNestedFloat a0,
-    Union16BytesNestedFloat a1,
-    Union16BytesNestedFloat a2,
-    Union16BytesNestedFloat a3,
-    Union16BytesNestedFloat a4,
-    Union16BytesNestedFloat a5,
-    Union16BytesNestedFloat a6,
-    Union16BytesNestedFloat a7,
-    Union16BytesNestedFloat a8,
-    Union16BytesNestedFloat a9) {
-  print(
-      "passUnion16BytesNestedFloatx10(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0.a0 == 42 || a0.a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("PassUnion16BytesNestedFloatx10 throwing on purpose!");
-  }
-
-  passUnion16BytesNestedFloatx10_a0 = a0;
-  passUnion16BytesNestedFloatx10_a1 = a1;
-  passUnion16BytesNestedFloatx10_a2 = a2;
-  passUnion16BytesNestedFloatx10_a3 = a3;
-  passUnion16BytesNestedFloatx10_a4 = a4;
-  passUnion16BytesNestedFloatx10_a5 = a5;
-  passUnion16BytesNestedFloatx10_a6 = a6;
-  passUnion16BytesNestedFloatx10_a7 = a7;
-  passUnion16BytesNestedFloatx10_a8 = a8;
-  passUnion16BytesNestedFloatx10_a9 = a9;
-
-  final result = passUnion16BytesNestedFloatx10CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passUnion16BytesNestedFloatx10AfterCallback() {
-  final result = passUnion16BytesNestedFloatx10CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.approxEquals(10.0, result);
-}
-
-typedef PassUint8Boolx9Struct10BytesHomogeneousBoolBoolType = Int32 Function(
-    Uint8,
-    Bool,
-    Bool,
-    Bool,
-    Bool,
-    Bool,
-    Bool,
-    Bool,
-    Bool,
-    Bool,
-    Struct10BytesHomogeneousBool,
-    Bool);
-
-// Global variables to be able to test inputs after callback returned.
-int passUint8Boolx9Struct10BytesHomogeneousBoolBool_a0 = 0;
-bool passUint8Boolx9Struct10BytesHomogeneousBoolBool_a1 = false;
-bool passUint8Boolx9Struct10BytesHomogeneousBoolBool_a2 = false;
-bool passUint8Boolx9Struct10BytesHomogeneousBoolBool_a3 = false;
-bool passUint8Boolx9Struct10BytesHomogeneousBoolBool_a4 = false;
-bool passUint8Boolx9Struct10BytesHomogeneousBoolBool_a5 = false;
-bool passUint8Boolx9Struct10BytesHomogeneousBoolBool_a6 = false;
-bool passUint8Boolx9Struct10BytesHomogeneousBoolBool_a7 = false;
-bool passUint8Boolx9Struct10BytesHomogeneousBoolBool_a8 = false;
-bool passUint8Boolx9Struct10BytesHomogeneousBoolBool_a9 = false;
-Struct10BytesHomogeneousBool
-    passUint8Boolx9Struct10BytesHomogeneousBoolBool_a10 =
-    Pointer<Struct10BytesHomogeneousBool>.fromAddress(0).ref;
-bool passUint8Boolx9Struct10BytesHomogeneousBoolBool_a11 = false;
-
-// Result variable also global, so we can delete it after the callback.
-int passUint8Boolx9Struct10BytesHomogeneousBoolBoolResult = 0;
-
-int passUint8Boolx9Struct10BytesHomogeneousBoolBoolCalculateResult() {
-  int result = 0;
-
-  result += passUint8Boolx9Struct10BytesHomogeneousBoolBool_a0;
-  result += passUint8Boolx9Struct10BytesHomogeneousBoolBool_a1 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesHomogeneousBoolBool_a2 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesHomogeneousBoolBool_a3 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesHomogeneousBoolBool_a4 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesHomogeneousBoolBool_a5 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesHomogeneousBoolBool_a6 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesHomogeneousBoolBool_a7 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesHomogeneousBoolBool_a8 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesHomogeneousBoolBool_a9 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesHomogeneousBoolBool_a10.a0 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesHomogeneousBoolBool_a10.a1 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesHomogeneousBoolBool_a10.a2 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesHomogeneousBoolBool_a10.a3 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesHomogeneousBoolBool_a10.a4 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesHomogeneousBoolBool_a10.a5 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesHomogeneousBoolBool_a10.a6 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesHomogeneousBoolBool_a10.a7 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesHomogeneousBoolBool_a10.a8 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesHomogeneousBoolBool_a10.a9 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesHomogeneousBoolBool_a11 ? 1 : 0;
-
-  passUint8Boolx9Struct10BytesHomogeneousBoolBoolResult = result;
-
-  return result;
-}
-
-/// Passing bools and a struct with bools.
-/// Exhausts the registers to test bools and the bool struct alignment on the
-/// stack.
-int passUint8Boolx9Struct10BytesHomogeneousBoolBool(
-    int a0,
-    bool a1,
-    bool a2,
-    bool a3,
-    bool a4,
-    bool a5,
-    bool a6,
-    bool a7,
-    bool a8,
-    bool a9,
-    Struct10BytesHomogeneousBool a10,
-    bool a11) {
-  print(
-      "passUint8Boolx9Struct10BytesHomogeneousBoolBool(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9}, ${a10}, ${a11})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassUint8Boolx9Struct10BytesHomogeneousBoolBool throwing on purpose!");
-  }
-
-  passUint8Boolx9Struct10BytesHomogeneousBoolBool_a0 = a0;
-  passUint8Boolx9Struct10BytesHomogeneousBoolBool_a1 = a1;
-  passUint8Boolx9Struct10BytesHomogeneousBoolBool_a2 = a2;
-  passUint8Boolx9Struct10BytesHomogeneousBoolBool_a3 = a3;
-  passUint8Boolx9Struct10BytesHomogeneousBoolBool_a4 = a4;
-  passUint8Boolx9Struct10BytesHomogeneousBoolBool_a5 = a5;
-  passUint8Boolx9Struct10BytesHomogeneousBoolBool_a6 = a6;
-  passUint8Boolx9Struct10BytesHomogeneousBoolBool_a7 = a7;
-  passUint8Boolx9Struct10BytesHomogeneousBoolBool_a8 = a8;
-  passUint8Boolx9Struct10BytesHomogeneousBoolBool_a9 = a9;
-  passUint8Boolx9Struct10BytesHomogeneousBoolBool_a10 = a10;
-  passUint8Boolx9Struct10BytesHomogeneousBoolBool_a11 = a11;
-
-  final result =
-      passUint8Boolx9Struct10BytesHomogeneousBoolBoolCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passUint8Boolx9Struct10BytesHomogeneousBoolBoolAfterCallback() {
-  final result =
-      passUint8Boolx9Struct10BytesHomogeneousBoolBoolCalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(11, result);
-}
-
-typedef PassUint8Boolx9Struct10BytesInlineArrayBoolBoolType = Int32 Function(
-    Uint8,
-    Bool,
-    Bool,
-    Bool,
-    Bool,
-    Bool,
-    Bool,
-    Bool,
-    Bool,
-    Bool,
-    Struct10BytesInlineArrayBool,
-    Bool);
-
-// Global variables to be able to test inputs after callback returned.
-int passUint8Boolx9Struct10BytesInlineArrayBoolBool_a0 = 0;
-bool passUint8Boolx9Struct10BytesInlineArrayBoolBool_a1 = false;
-bool passUint8Boolx9Struct10BytesInlineArrayBoolBool_a2 = false;
-bool passUint8Boolx9Struct10BytesInlineArrayBoolBool_a3 = false;
-bool passUint8Boolx9Struct10BytesInlineArrayBoolBool_a4 = false;
-bool passUint8Boolx9Struct10BytesInlineArrayBoolBool_a5 = false;
-bool passUint8Boolx9Struct10BytesInlineArrayBoolBool_a6 = false;
-bool passUint8Boolx9Struct10BytesInlineArrayBoolBool_a7 = false;
-bool passUint8Boolx9Struct10BytesInlineArrayBoolBool_a8 = false;
-bool passUint8Boolx9Struct10BytesInlineArrayBoolBool_a9 = false;
-Struct10BytesInlineArrayBool
-    passUint8Boolx9Struct10BytesInlineArrayBoolBool_a10 =
-    Pointer<Struct10BytesInlineArrayBool>.fromAddress(0).ref;
-bool passUint8Boolx9Struct10BytesInlineArrayBoolBool_a11 = false;
-
-// Result variable also global, so we can delete it after the callback.
-int passUint8Boolx9Struct10BytesInlineArrayBoolBoolResult = 0;
-
-int passUint8Boolx9Struct10BytesInlineArrayBoolBoolCalculateResult() {
-  int result = 0;
-
-  result += passUint8Boolx9Struct10BytesInlineArrayBoolBool_a0;
-  result += passUint8Boolx9Struct10BytesInlineArrayBoolBool_a1 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesInlineArrayBoolBool_a2 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesInlineArrayBoolBool_a3 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesInlineArrayBoolBool_a4 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesInlineArrayBoolBool_a5 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesInlineArrayBoolBool_a6 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesInlineArrayBoolBool_a7 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesInlineArrayBoolBool_a8 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesInlineArrayBoolBool_a9 ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesInlineArrayBoolBool_a10.a0[0] ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesInlineArrayBoolBool_a10.a0[1] ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesInlineArrayBoolBool_a10.a0[2] ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesInlineArrayBoolBool_a10.a0[3] ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesInlineArrayBoolBool_a10.a0[4] ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesInlineArrayBoolBool_a10.a0[5] ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesInlineArrayBoolBool_a10.a0[6] ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesInlineArrayBoolBool_a10.a0[7] ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesInlineArrayBoolBool_a10.a0[8] ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesInlineArrayBoolBool_a10.a0[9] ? 1 : 0;
-  result += passUint8Boolx9Struct10BytesInlineArrayBoolBool_a11 ? 1 : 0;
-
-  passUint8Boolx9Struct10BytesInlineArrayBoolBoolResult = result;
-
-  return result;
-}
-
-/// Passing bools and a struct with bools.
-/// Exhausts the registers to test bools and the bool struct alignment on the
-/// stack.
-int passUint8Boolx9Struct10BytesInlineArrayBoolBool(
-    int a0,
-    bool a1,
-    bool a2,
-    bool a3,
-    bool a4,
-    bool a5,
-    bool a6,
-    bool a7,
-    bool a8,
-    bool a9,
-    Struct10BytesInlineArrayBool a10,
-    bool a11) {
-  print(
-      "passUint8Boolx9Struct10BytesInlineArrayBoolBool(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9}, ${a10}, ${a11})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassUint8Boolx9Struct10BytesInlineArrayBoolBool throwing on purpose!");
-  }
-
-  passUint8Boolx9Struct10BytesInlineArrayBoolBool_a0 = a0;
-  passUint8Boolx9Struct10BytesInlineArrayBoolBool_a1 = a1;
-  passUint8Boolx9Struct10BytesInlineArrayBoolBool_a2 = a2;
-  passUint8Boolx9Struct10BytesInlineArrayBoolBool_a3 = a3;
-  passUint8Boolx9Struct10BytesInlineArrayBoolBool_a4 = a4;
-  passUint8Boolx9Struct10BytesInlineArrayBoolBool_a5 = a5;
-  passUint8Boolx9Struct10BytesInlineArrayBoolBool_a6 = a6;
-  passUint8Boolx9Struct10BytesInlineArrayBoolBool_a7 = a7;
-  passUint8Boolx9Struct10BytesInlineArrayBoolBool_a8 = a8;
-  passUint8Boolx9Struct10BytesInlineArrayBoolBool_a9 = a9;
-  passUint8Boolx9Struct10BytesInlineArrayBoolBool_a10 = a10;
-  passUint8Boolx9Struct10BytesInlineArrayBoolBool_a11 = a11;
-
-  final result =
-      passUint8Boolx9Struct10BytesInlineArrayBoolBoolCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passUint8Boolx9Struct10BytesInlineArrayBoolBoolAfterCallback() {
-  final result =
-      passUint8Boolx9Struct10BytesInlineArrayBoolBoolCalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(11, result);
-}
-
-typedef PassUint8Struct1ByteBoolType = Bool Function(Uint8, Struct1ByteBool);
-
-// Global variables to be able to test inputs after callback returned.
-int passUint8Struct1ByteBool_a0 = 0;
-Struct1ByteBool passUint8Struct1ByteBool_a1 =
-    Pointer<Struct1ByteBool>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-bool passUint8Struct1ByteBoolResult = false;
-
-bool passUint8Struct1ByteBoolCalculateResult() {
-  int result = 0;
-
-  result += passUint8Struct1ByteBool_a0;
-  result += passUint8Struct1ByteBool_a1.a0 ? 1 : 0;
-
-  passUint8Struct1ByteBoolResult = result % 2 != 0;
-
-  return result % 2 != 0;
-}
-
-/// Returning a bool.
-bool passUint8Struct1ByteBool(int a0, Struct1ByteBool a1) {
-  print("passUint8Struct1ByteBool(${a0}, ${a1})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("PassUint8Struct1ByteBool throwing on purpose!");
-  }
-
-  passUint8Struct1ByteBool_a0 = a0;
-  passUint8Struct1ByteBool_a1 = a1;
-
-  final result = passUint8Struct1ByteBoolCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passUint8Struct1ByteBoolAfterCallback() {
-  final result = passUint8Struct1ByteBoolCalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(1 % 2 != 0, result);
-}
-
-typedef PassWCharStructInlineArrayIntUintPtrx2LongUnsignedType = WChar Function(
-    WChar, StructInlineArrayInt, UintPtr, UintPtr, Long, UnsignedLong);
-
-// Global variables to be able to test inputs after callback returned.
-int passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a0 = 0;
-StructInlineArrayInt passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a1 =
-    Pointer<StructInlineArrayInt>.fromAddress(0).ref;
-int passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a2 = 0;
-int passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a3 = 0;
-int passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a4 = 0;
-int passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a5 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-int passWCharStructInlineArrayIntUintPtrx2LongUnsignedResult = 0;
-
-int passWCharStructInlineArrayIntUintPtrx2LongUnsignedCalculateResult() {
-  int result = 0;
-
-  result += passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a0;
-  result += passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a1.a0[0];
-  result += passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a1.a0[1];
-  result += passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a1.a0[2];
-  result += passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a1.a0[3];
-  result += passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a1.a0[4];
-  result += passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a1.a0[5];
-  result += passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a1.a0[6];
-  result += passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a1.a0[7];
-  result += passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a1.a0[8];
-  result += passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a1.a0[9];
-  result += passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a2;
-  result += passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a3;
-  result += passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a4;
-  result += passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a5;
-
-  passWCharStructInlineArrayIntUintPtrx2LongUnsignedResult = result;
-
-  return result;
-}
-
-/// Returning a wchar.
-int passWCharStructInlineArrayIntUintPtrx2LongUnsigned(
-    int a0, StructInlineArrayInt a1, int a2, int a3, int a4, int a5) {
-  print(
-      "passWCharStructInlineArrayIntUintPtrx2LongUnsigned(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassWCharStructInlineArrayIntUintPtrx2LongUnsigned throwing on purpose!");
-  }
-
-  passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a0 = a0;
-  passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a1 = a1;
-  passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a2 = a2;
-  passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a3 = a3;
-  passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a4 = a4;
-  passWCharStructInlineArrayIntUintPtrx2LongUnsigned_a5 = a5;
-
-  final result =
-      passWCharStructInlineArrayIntUintPtrx2LongUnsignedCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passWCharStructInlineArrayIntUintPtrx2LongUnsignedAfterCallback() {
-  final result =
-      passWCharStructInlineArrayIntUintPtrx2LongUnsignedCalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(120, result);
-}
-
-typedef PassInt64x7Struct12BytesHomogeneousInt32Type = Int64 Function(Int64,
-    Int64, Int64, Int64, Int64, Int64, Int64, Struct12BytesHomogeneousInt32);
-
-// Global variables to be able to test inputs after callback returned.
-int passInt64x7Struct12BytesHomogeneousInt32_a0 = 0;
-int passInt64x7Struct12BytesHomogeneousInt32_a1 = 0;
-int passInt64x7Struct12BytesHomogeneousInt32_a2 = 0;
-int passInt64x7Struct12BytesHomogeneousInt32_a3 = 0;
-int passInt64x7Struct12BytesHomogeneousInt32_a4 = 0;
-int passInt64x7Struct12BytesHomogeneousInt32_a5 = 0;
-int passInt64x7Struct12BytesHomogeneousInt32_a6 = 0;
-Struct12BytesHomogeneousInt32 passInt64x7Struct12BytesHomogeneousInt32_a7 =
-    Pointer<Struct12BytesHomogeneousInt32>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-int passInt64x7Struct12BytesHomogeneousInt32Result = 0;
-
-int passInt64x7Struct12BytesHomogeneousInt32CalculateResult() {
-  int result = 0;
-
-  result += passInt64x7Struct12BytesHomogeneousInt32_a0;
-  result += passInt64x7Struct12BytesHomogeneousInt32_a1;
-  result += passInt64x7Struct12BytesHomogeneousInt32_a2;
-  result += passInt64x7Struct12BytesHomogeneousInt32_a3;
-  result += passInt64x7Struct12BytesHomogeneousInt32_a4;
-  result += passInt64x7Struct12BytesHomogeneousInt32_a5;
-  result += passInt64x7Struct12BytesHomogeneousInt32_a6;
-  result += passInt64x7Struct12BytesHomogeneousInt32_a7.a0;
-  result += passInt64x7Struct12BytesHomogeneousInt32_a7.a1;
-  result += passInt64x7Struct12BytesHomogeneousInt32_a7.a2;
-
-  passInt64x7Struct12BytesHomogeneousInt32Result = result;
-
-  return result;
-}
-
-/// Struct stradles last argument register
-int passInt64x7Struct12BytesHomogeneousInt32(int a0, int a1, int a2, int a3,
-    int a4, int a5, int a6, Struct12BytesHomogeneousInt32 a7) {
-  print(
-      "passInt64x7Struct12BytesHomogeneousInt32(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "PassInt64x7Struct12BytesHomogeneousInt32 throwing on purpose!");
-  }
-
-  passInt64x7Struct12BytesHomogeneousInt32_a0 = a0;
-  passInt64x7Struct12BytesHomogeneousInt32_a1 = a1;
-  passInt64x7Struct12BytesHomogeneousInt32_a2 = a2;
-  passInt64x7Struct12BytesHomogeneousInt32_a3 = a3;
-  passInt64x7Struct12BytesHomogeneousInt32_a4 = a4;
-  passInt64x7Struct12BytesHomogeneousInt32_a5 = a5;
-  passInt64x7Struct12BytesHomogeneousInt32_a6 = a6;
-  passInt64x7Struct12BytesHomogeneousInt32_a7 = a7;
-
-  final result = passInt64x7Struct12BytesHomogeneousInt32CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void passInt64x7Struct12BytesHomogeneousInt32AfterCallback() {
-  final result = passInt64x7Struct12BytesHomogeneousInt32CalculateResult();
-
-  print("after callback result = $result");
-
-  Expect.equals(5, result);
-}
-
-typedef ReturnStruct1ByteIntType = Struct1ByteInt Function(Int8);
-
-// Global variables to be able to test inputs after callback returned.
-int returnStruct1ByteInt_a0 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct1ByteInt> returnStruct1ByteIntResultPointer = nullptr;
-
-Struct1ByteInt returnStruct1ByteIntCalculateResult() {
-  final resultPointer = calloc<Struct1ByteInt>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStruct1ByteInt_a0;
-
-  returnStruct1ByteIntResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Smallest struct with data.
-Struct1ByteInt returnStruct1ByteInt(int a0) {
-  print("returnStruct1ByteInt(${a0})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct1ByteInt throwing on purpose!");
-  }
-
-  returnStruct1ByteInt_a0 = a0;
-
-  final result = returnStruct1ByteIntCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct1ByteIntAfterCallback() {
-  calloc.free(returnStruct1ByteIntResultPointer);
-
-  final result = returnStruct1ByteIntCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct1ByteIntResultPointer);
-}
-
-typedef ReturnStruct3BytesHomogeneousUint8Type = Struct3BytesHomogeneousUint8
-    Function(Uint8, Uint8, Uint8);
-
-// Global variables to be able to test inputs after callback returned.
-int returnStruct3BytesHomogeneousUint8_a0 = 0;
-int returnStruct3BytesHomogeneousUint8_a1 = 0;
-int returnStruct3BytesHomogeneousUint8_a2 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct3BytesHomogeneousUint8>
-    returnStruct3BytesHomogeneousUint8ResultPointer = nullptr;
-
-Struct3BytesHomogeneousUint8
-    returnStruct3BytesHomogeneousUint8CalculateResult() {
-  final resultPointer = calloc<Struct3BytesHomogeneousUint8>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStruct3BytesHomogeneousUint8_a0;
-  result.a1 = returnStruct3BytesHomogeneousUint8_a1;
-  result.a2 = returnStruct3BytesHomogeneousUint8_a2;
-
-  returnStruct3BytesHomogeneousUint8ResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Smaller than word size return value on all architectures.
-Struct3BytesHomogeneousUint8 returnStruct3BytesHomogeneousUint8(
-    int a0, int a1, int a2) {
-  print("returnStruct3BytesHomogeneousUint8(${a0}, ${a1}, ${a2})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct3BytesHomogeneousUint8 throwing on purpose!");
-  }
-
-  returnStruct3BytesHomogeneousUint8_a0 = a0;
-  returnStruct3BytesHomogeneousUint8_a1 = a1;
-  returnStruct3BytesHomogeneousUint8_a2 = a2;
-
-  final result = returnStruct3BytesHomogeneousUint8CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct3BytesHomogeneousUint8AfterCallback() {
-  calloc.free(returnStruct3BytesHomogeneousUint8ResultPointer);
-
-  final result = returnStruct3BytesHomogeneousUint8CalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct3BytesHomogeneousUint8ResultPointer);
-}
-
-typedef ReturnStruct3BytesInt2ByteAlignedType = Struct3BytesInt2ByteAligned
-    Function(Int16, Int8);
-
-// Global variables to be able to test inputs after callback returned.
-int returnStruct3BytesInt2ByteAligned_a0 = 0;
-int returnStruct3BytesInt2ByteAligned_a1 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct3BytesInt2ByteAligned>
-    returnStruct3BytesInt2ByteAlignedResultPointer = nullptr;
-
-Struct3BytesInt2ByteAligned returnStruct3BytesInt2ByteAlignedCalculateResult() {
-  final resultPointer = calloc<Struct3BytesInt2ByteAligned>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStruct3BytesInt2ByteAligned_a0;
-  result.a1 = returnStruct3BytesInt2ByteAligned_a1;
-
-  returnStruct3BytesInt2ByteAlignedResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Smaller than word size return value on all architectures.
-/// With alignment rules taken into account size is 4 bytes.
-Struct3BytesInt2ByteAligned returnStruct3BytesInt2ByteAligned(int a0, int a1) {
-  print("returnStruct3BytesInt2ByteAligned(${a0}, ${a1})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct3BytesInt2ByteAligned throwing on purpose!");
-  }
-
-  returnStruct3BytesInt2ByteAligned_a0 = a0;
-  returnStruct3BytesInt2ByteAligned_a1 = a1;
-
-  final result = returnStruct3BytesInt2ByteAlignedCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct3BytesInt2ByteAlignedAfterCallback() {
-  calloc.free(returnStruct3BytesInt2ByteAlignedResultPointer);
-
-  final result = returnStruct3BytesInt2ByteAlignedCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct3BytesInt2ByteAlignedResultPointer);
-}
-
-typedef ReturnStruct4BytesHomogeneousInt16Type = Struct4BytesHomogeneousInt16
-    Function(Int16, Int16);
-
-// Global variables to be able to test inputs after callback returned.
-int returnStruct4BytesHomogeneousInt16_a0 = 0;
-int returnStruct4BytesHomogeneousInt16_a1 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct4BytesHomogeneousInt16>
-    returnStruct4BytesHomogeneousInt16ResultPointer = nullptr;
-
-Struct4BytesHomogeneousInt16
-    returnStruct4BytesHomogeneousInt16CalculateResult() {
-  final resultPointer = calloc<Struct4BytesHomogeneousInt16>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStruct4BytesHomogeneousInt16_a0;
-  result.a1 = returnStruct4BytesHomogeneousInt16_a1;
-
-  returnStruct4BytesHomogeneousInt16ResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Word size return value on 32 bit architectures..
-Struct4BytesHomogeneousInt16 returnStruct4BytesHomogeneousInt16(
-    int a0, int a1) {
-  print("returnStruct4BytesHomogeneousInt16(${a0}, ${a1})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct4BytesHomogeneousInt16 throwing on purpose!");
-  }
-
-  returnStruct4BytesHomogeneousInt16_a0 = a0;
-  returnStruct4BytesHomogeneousInt16_a1 = a1;
-
-  final result = returnStruct4BytesHomogeneousInt16CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct4BytesHomogeneousInt16AfterCallback() {
-  calloc.free(returnStruct4BytesHomogeneousInt16ResultPointer);
-
-  final result = returnStruct4BytesHomogeneousInt16CalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct4BytesHomogeneousInt16ResultPointer);
-}
-
-typedef ReturnStruct7BytesHomogeneousUint8Type = Struct7BytesHomogeneousUint8
-    Function(Uint8, Uint8, Uint8, Uint8, Uint8, Uint8, Uint8);
-
-// Global variables to be able to test inputs after callback returned.
-int returnStruct7BytesHomogeneousUint8_a0 = 0;
-int returnStruct7BytesHomogeneousUint8_a1 = 0;
-int returnStruct7BytesHomogeneousUint8_a2 = 0;
-int returnStruct7BytesHomogeneousUint8_a3 = 0;
-int returnStruct7BytesHomogeneousUint8_a4 = 0;
-int returnStruct7BytesHomogeneousUint8_a5 = 0;
-int returnStruct7BytesHomogeneousUint8_a6 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct7BytesHomogeneousUint8>
-    returnStruct7BytesHomogeneousUint8ResultPointer = nullptr;
-
-Struct7BytesHomogeneousUint8
-    returnStruct7BytesHomogeneousUint8CalculateResult() {
-  final resultPointer = calloc<Struct7BytesHomogeneousUint8>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStruct7BytesHomogeneousUint8_a0;
-  result.a1 = returnStruct7BytesHomogeneousUint8_a1;
-  result.a2 = returnStruct7BytesHomogeneousUint8_a2;
-  result.a3 = returnStruct7BytesHomogeneousUint8_a3;
-  result.a4 = returnStruct7BytesHomogeneousUint8_a4;
-  result.a5 = returnStruct7BytesHomogeneousUint8_a5;
-  result.a6 = returnStruct7BytesHomogeneousUint8_a6;
-
-  returnStruct7BytesHomogeneousUint8ResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Non-wordsize return value.
-Struct7BytesHomogeneousUint8 returnStruct7BytesHomogeneousUint8(
-    int a0, int a1, int a2, int a3, int a4, int a5, int a6) {
-  print(
-      "returnStruct7BytesHomogeneousUint8(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct7BytesHomogeneousUint8 throwing on purpose!");
-  }
-
-  returnStruct7BytesHomogeneousUint8_a0 = a0;
-  returnStruct7BytesHomogeneousUint8_a1 = a1;
-  returnStruct7BytesHomogeneousUint8_a2 = a2;
-  returnStruct7BytesHomogeneousUint8_a3 = a3;
-  returnStruct7BytesHomogeneousUint8_a4 = a4;
-  returnStruct7BytesHomogeneousUint8_a5 = a5;
-  returnStruct7BytesHomogeneousUint8_a6 = a6;
-
-  final result = returnStruct7BytesHomogeneousUint8CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct7BytesHomogeneousUint8AfterCallback() {
-  calloc.free(returnStruct7BytesHomogeneousUint8ResultPointer);
-
-  final result = returnStruct7BytesHomogeneousUint8CalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct7BytesHomogeneousUint8ResultPointer);
-}
-
-typedef ReturnStruct7BytesInt4ByteAlignedType = Struct7BytesInt4ByteAligned
-    Function(Int32, Int16, Int8);
-
-// Global variables to be able to test inputs after callback returned.
-int returnStruct7BytesInt4ByteAligned_a0 = 0;
-int returnStruct7BytesInt4ByteAligned_a1 = 0;
-int returnStruct7BytesInt4ByteAligned_a2 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct7BytesInt4ByteAligned>
-    returnStruct7BytesInt4ByteAlignedResultPointer = nullptr;
-
-Struct7BytesInt4ByteAligned returnStruct7BytesInt4ByteAlignedCalculateResult() {
-  final resultPointer = calloc<Struct7BytesInt4ByteAligned>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStruct7BytesInt4ByteAligned_a0;
-  result.a1 = returnStruct7BytesInt4ByteAligned_a1;
-  result.a2 = returnStruct7BytesInt4ByteAligned_a2;
-
-  returnStruct7BytesInt4ByteAlignedResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Non-wordsize return value.
-/// With alignment rules taken into account size is 8 bytes.
-Struct7BytesInt4ByteAligned returnStruct7BytesInt4ByteAligned(
-    int a0, int a1, int a2) {
-  print("returnStruct7BytesInt4ByteAligned(${a0}, ${a1}, ${a2})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct7BytesInt4ByteAligned throwing on purpose!");
-  }
-
-  returnStruct7BytesInt4ByteAligned_a0 = a0;
-  returnStruct7BytesInt4ByteAligned_a1 = a1;
-  returnStruct7BytesInt4ByteAligned_a2 = a2;
-
-  final result = returnStruct7BytesInt4ByteAlignedCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct7BytesInt4ByteAlignedAfterCallback() {
-  calloc.free(returnStruct7BytesInt4ByteAlignedResultPointer);
-
-  final result = returnStruct7BytesInt4ByteAlignedCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct7BytesInt4ByteAlignedResultPointer);
-}
-
-typedef ReturnStruct8BytesIntType = Struct8BytesInt Function(
-    Int16, Int16, Int32);
-
-// Global variables to be able to test inputs after callback returned.
-int returnStruct8BytesInt_a0 = 0;
-int returnStruct8BytesInt_a1 = 0;
-int returnStruct8BytesInt_a2 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct8BytesInt> returnStruct8BytesIntResultPointer = nullptr;
-
-Struct8BytesInt returnStruct8BytesIntCalculateResult() {
-  final resultPointer = calloc<Struct8BytesInt>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStruct8BytesInt_a0;
-  result.a1 = returnStruct8BytesInt_a1;
-  result.a2 = returnStruct8BytesInt_a2;
-
-  returnStruct8BytesIntResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Return value in integer registers on many architectures.
-Struct8BytesInt returnStruct8BytesInt(int a0, int a1, int a2) {
-  print("returnStruct8BytesInt(${a0}, ${a1}, ${a2})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct8BytesInt throwing on purpose!");
-  }
-
-  returnStruct8BytesInt_a0 = a0;
-  returnStruct8BytesInt_a1 = a1;
-  returnStruct8BytesInt_a2 = a2;
-
-  final result = returnStruct8BytesIntCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct8BytesIntAfterCallback() {
-  calloc.free(returnStruct8BytesIntResultPointer);
-
-  final result = returnStruct8BytesIntCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct8BytesIntResultPointer);
-}
-
-typedef ReturnStruct8BytesHomogeneousFloatType = Struct8BytesHomogeneousFloat
-    Function(Float, Float);
-
-// Global variables to be able to test inputs after callback returned.
-double returnStruct8BytesHomogeneousFloat_a0 = 0.0;
-double returnStruct8BytesHomogeneousFloat_a1 = 0.0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct8BytesHomogeneousFloat>
-    returnStruct8BytesHomogeneousFloatResultPointer = nullptr;
-
-Struct8BytesHomogeneousFloat
-    returnStruct8BytesHomogeneousFloatCalculateResult() {
-  final resultPointer = calloc<Struct8BytesHomogeneousFloat>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStruct8BytesHomogeneousFloat_a0;
-  result.a1 = returnStruct8BytesHomogeneousFloat_a1;
-
-  returnStruct8BytesHomogeneousFloatResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Return value in FP registers on many architectures.
-Struct8BytesHomogeneousFloat returnStruct8BytesHomogeneousFloat(
-    double a0, double a1) {
-  print("returnStruct8BytesHomogeneousFloat(${a0}, ${a1})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct8BytesHomogeneousFloat throwing on purpose!");
-  }
-
-  returnStruct8BytesHomogeneousFloat_a0 = a0;
-  returnStruct8BytesHomogeneousFloat_a1 = a1;
-
-  final result = returnStruct8BytesHomogeneousFloatCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct8BytesHomogeneousFloatAfterCallback() {
-  calloc.free(returnStruct8BytesHomogeneousFloatResultPointer);
-
-  final result = returnStruct8BytesHomogeneousFloatCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct8BytesHomogeneousFloatResultPointer);
-}
-
-typedef ReturnStruct8BytesMixedType = Struct8BytesMixed Function(
-    Float, Int16, Int16);
-
-// Global variables to be able to test inputs after callback returned.
-double returnStruct8BytesMixed_a0 = 0.0;
-int returnStruct8BytesMixed_a1 = 0;
-int returnStruct8BytesMixed_a2 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct8BytesMixed> returnStruct8BytesMixedResultPointer = nullptr;
-
-Struct8BytesMixed returnStruct8BytesMixedCalculateResult() {
-  final resultPointer = calloc<Struct8BytesMixed>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStruct8BytesMixed_a0;
-  result.a1 = returnStruct8BytesMixed_a1;
-  result.a2 = returnStruct8BytesMixed_a2;
-
-  returnStruct8BytesMixedResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Return value split over FP and integer register in x64.
-Struct8BytesMixed returnStruct8BytesMixed(double a0, int a1, int a2) {
-  print("returnStruct8BytesMixed(${a0}, ${a1}, ${a2})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct8BytesMixed throwing on purpose!");
-  }
-
-  returnStruct8BytesMixed_a0 = a0;
-  returnStruct8BytesMixed_a1 = a1;
-  returnStruct8BytesMixed_a2 = a2;
-
-  final result = returnStruct8BytesMixedCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct8BytesMixedAfterCallback() {
-  calloc.free(returnStruct8BytesMixedResultPointer);
-
-  final result = returnStruct8BytesMixedCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct8BytesMixedResultPointer);
-}
-
-typedef ReturnStruct9BytesHomogeneousUint8Type = Struct9BytesHomogeneousUint8
-    Function(Uint8, Uint8, Uint8, Uint8, Uint8, Uint8, Uint8, Uint8, Uint8);
-
-// Global variables to be able to test inputs after callback returned.
-int returnStruct9BytesHomogeneousUint8_a0 = 0;
-int returnStruct9BytesHomogeneousUint8_a1 = 0;
-int returnStruct9BytesHomogeneousUint8_a2 = 0;
-int returnStruct9BytesHomogeneousUint8_a3 = 0;
-int returnStruct9BytesHomogeneousUint8_a4 = 0;
-int returnStruct9BytesHomogeneousUint8_a5 = 0;
-int returnStruct9BytesHomogeneousUint8_a6 = 0;
-int returnStruct9BytesHomogeneousUint8_a7 = 0;
-int returnStruct9BytesHomogeneousUint8_a8 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct9BytesHomogeneousUint8>
-    returnStruct9BytesHomogeneousUint8ResultPointer = nullptr;
-
-Struct9BytesHomogeneousUint8
-    returnStruct9BytesHomogeneousUint8CalculateResult() {
-  final resultPointer = calloc<Struct9BytesHomogeneousUint8>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStruct9BytesHomogeneousUint8_a0;
-  result.a1 = returnStruct9BytesHomogeneousUint8_a1;
-  result.a2 = returnStruct9BytesHomogeneousUint8_a2;
-  result.a3 = returnStruct9BytesHomogeneousUint8_a3;
-  result.a4 = returnStruct9BytesHomogeneousUint8_a4;
-  result.a5 = returnStruct9BytesHomogeneousUint8_a5;
-  result.a6 = returnStruct9BytesHomogeneousUint8_a6;
-  result.a7 = returnStruct9BytesHomogeneousUint8_a7;
-  result.a8 = returnStruct9BytesHomogeneousUint8_a8;
-
-  returnStruct9BytesHomogeneousUint8ResultPointer = resultPointer;
-
-  return result;
-}
-
-/// The minimum alignment of this struct is only 1 byte based on its fields.
-/// Test that the memory backing these structs is the right size and that
-/// dart:ffi trampolines do not write outside this size.
-Struct9BytesHomogeneousUint8 returnStruct9BytesHomogeneousUint8(
-    int a0, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8) {
-  print(
-      "returnStruct9BytesHomogeneousUint8(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct9BytesHomogeneousUint8 throwing on purpose!");
-  }
-
-  returnStruct9BytesHomogeneousUint8_a0 = a0;
-  returnStruct9BytesHomogeneousUint8_a1 = a1;
-  returnStruct9BytesHomogeneousUint8_a2 = a2;
-  returnStruct9BytesHomogeneousUint8_a3 = a3;
-  returnStruct9BytesHomogeneousUint8_a4 = a4;
-  returnStruct9BytesHomogeneousUint8_a5 = a5;
-  returnStruct9BytesHomogeneousUint8_a6 = a6;
-  returnStruct9BytesHomogeneousUint8_a7 = a7;
-  returnStruct9BytesHomogeneousUint8_a8 = a8;
-
-  final result = returnStruct9BytesHomogeneousUint8CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct9BytesHomogeneousUint8AfterCallback() {
-  calloc.free(returnStruct9BytesHomogeneousUint8ResultPointer);
-
-  final result = returnStruct9BytesHomogeneousUint8CalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct9BytesHomogeneousUint8ResultPointer);
-}
-
-typedef ReturnStruct9BytesInt4Or8ByteAlignedType
-    = Struct9BytesInt4Or8ByteAligned Function(Int64, Int8);
-
-// Global variables to be able to test inputs after callback returned.
-int returnStruct9BytesInt4Or8ByteAligned_a0 = 0;
-int returnStruct9BytesInt4Or8ByteAligned_a1 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct9BytesInt4Or8ByteAligned>
-    returnStruct9BytesInt4Or8ByteAlignedResultPointer = nullptr;
-
-Struct9BytesInt4Or8ByteAligned
-    returnStruct9BytesInt4Or8ByteAlignedCalculateResult() {
-  final resultPointer = calloc<Struct9BytesInt4Or8ByteAligned>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStruct9BytesInt4Or8ByteAligned_a0;
-  result.a1 = returnStruct9BytesInt4Or8ByteAligned_a1;
-
-  returnStruct9BytesInt4Or8ByteAlignedResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Return value in two integer registers on x64.
-/// With alignment rules taken into account size is 12 or 16 bytes.
-Struct9BytesInt4Or8ByteAligned returnStruct9BytesInt4Or8ByteAligned(
-    int a0, int a1) {
-  print("returnStruct9BytesInt4Or8ByteAligned(${a0}, ${a1})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "ReturnStruct9BytesInt4Or8ByteAligned throwing on purpose!");
-  }
-
-  returnStruct9BytesInt4Or8ByteAligned_a0 = a0;
-  returnStruct9BytesInt4Or8ByteAligned_a1 = a1;
-
-  final result = returnStruct9BytesInt4Or8ByteAlignedCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct9BytesInt4Or8ByteAlignedAfterCallback() {
-  calloc.free(returnStruct9BytesInt4Or8ByteAlignedResultPointer);
-
-  final result = returnStruct9BytesInt4Or8ByteAlignedCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct9BytesInt4Or8ByteAlignedResultPointer);
-}
-
-typedef ReturnStruct12BytesHomogeneousFloatType = Struct12BytesHomogeneousFloat
-    Function(Float, Float, Float);
-
-// Global variables to be able to test inputs after callback returned.
-double returnStruct12BytesHomogeneousFloat_a0 = 0.0;
-double returnStruct12BytesHomogeneousFloat_a1 = 0.0;
-double returnStruct12BytesHomogeneousFloat_a2 = 0.0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct12BytesHomogeneousFloat>
-    returnStruct12BytesHomogeneousFloatResultPointer = nullptr;
-
-Struct12BytesHomogeneousFloat
-    returnStruct12BytesHomogeneousFloatCalculateResult() {
-  final resultPointer = calloc<Struct12BytesHomogeneousFloat>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStruct12BytesHomogeneousFloat_a0;
-  result.a1 = returnStruct12BytesHomogeneousFloat_a1;
-  result.a2 = returnStruct12BytesHomogeneousFloat_a2;
-
-  returnStruct12BytesHomogeneousFloatResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Return value in FPU registers, but does not use all registers on arm hardfp
-/// and arm64.
-Struct12BytesHomogeneousFloat returnStruct12BytesHomogeneousFloat(
-    double a0, double a1, double a2) {
-  print("returnStruct12BytesHomogeneousFloat(${a0}, ${a1}, ${a2})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct12BytesHomogeneousFloat throwing on purpose!");
-  }
-
-  returnStruct12BytesHomogeneousFloat_a0 = a0;
-  returnStruct12BytesHomogeneousFloat_a1 = a1;
-  returnStruct12BytesHomogeneousFloat_a2 = a2;
-
-  final result = returnStruct12BytesHomogeneousFloatCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct12BytesHomogeneousFloatAfterCallback() {
-  calloc.free(returnStruct12BytesHomogeneousFloatResultPointer);
-
-  final result = returnStruct12BytesHomogeneousFloatCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct12BytesHomogeneousFloatResultPointer);
-}
-
-typedef ReturnStruct16BytesHomogeneousFloatType = Struct16BytesHomogeneousFloat
-    Function(Float, Float, Float, Float);
-
-// Global variables to be able to test inputs after callback returned.
-double returnStruct16BytesHomogeneousFloat_a0 = 0.0;
-double returnStruct16BytesHomogeneousFloat_a1 = 0.0;
-double returnStruct16BytesHomogeneousFloat_a2 = 0.0;
-double returnStruct16BytesHomogeneousFloat_a3 = 0.0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct16BytesHomogeneousFloat>
-    returnStruct16BytesHomogeneousFloatResultPointer = nullptr;
-
-Struct16BytesHomogeneousFloat
-    returnStruct16BytesHomogeneousFloatCalculateResult() {
-  final resultPointer = calloc<Struct16BytesHomogeneousFloat>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStruct16BytesHomogeneousFloat_a0;
-  result.a1 = returnStruct16BytesHomogeneousFloat_a1;
-  result.a2 = returnStruct16BytesHomogeneousFloat_a2;
-  result.a3 = returnStruct16BytesHomogeneousFloat_a3;
-
-  returnStruct16BytesHomogeneousFloatResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Return value in FPU registers on arm hardfp and arm64.
-Struct16BytesHomogeneousFloat returnStruct16BytesHomogeneousFloat(
-    double a0, double a1, double a2, double a3) {
-  print("returnStruct16BytesHomogeneousFloat(${a0}, ${a1}, ${a2}, ${a3})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct16BytesHomogeneousFloat throwing on purpose!");
-  }
-
-  returnStruct16BytesHomogeneousFloat_a0 = a0;
-  returnStruct16BytesHomogeneousFloat_a1 = a1;
-  returnStruct16BytesHomogeneousFloat_a2 = a2;
-  returnStruct16BytesHomogeneousFloat_a3 = a3;
-
-  final result = returnStruct16BytesHomogeneousFloatCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct16BytesHomogeneousFloatAfterCallback() {
-  calloc.free(returnStruct16BytesHomogeneousFloatResultPointer);
-
-  final result = returnStruct16BytesHomogeneousFloatCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct16BytesHomogeneousFloatResultPointer);
-}
-
-typedef ReturnStruct16BytesMixedType = Struct16BytesMixed Function(
-    Double, Int64);
-
-// Global variables to be able to test inputs after callback returned.
-double returnStruct16BytesMixed_a0 = 0.0;
-int returnStruct16BytesMixed_a1 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct16BytesMixed> returnStruct16BytesMixedResultPointer = nullptr;
-
-Struct16BytesMixed returnStruct16BytesMixedCalculateResult() {
-  final resultPointer = calloc<Struct16BytesMixed>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStruct16BytesMixed_a0;
-  result.a1 = returnStruct16BytesMixed_a1;
-
-  returnStruct16BytesMixedResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Return value split over FP and integer register in x64.
-Struct16BytesMixed returnStruct16BytesMixed(double a0, int a1) {
-  print("returnStruct16BytesMixed(${a0}, ${a1})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct16BytesMixed throwing on purpose!");
-  }
-
-  returnStruct16BytesMixed_a0 = a0;
-  returnStruct16BytesMixed_a1 = a1;
-
-  final result = returnStruct16BytesMixedCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct16BytesMixedAfterCallback() {
-  calloc.free(returnStruct16BytesMixedResultPointer);
-
-  final result = returnStruct16BytesMixedCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct16BytesMixedResultPointer);
-}
-
-typedef ReturnStruct16BytesMixed2Type = Struct16BytesMixed2 Function(
-    Float, Float, Float, Int32);
-
-// Global variables to be able to test inputs after callback returned.
-double returnStruct16BytesMixed2_a0 = 0.0;
-double returnStruct16BytesMixed2_a1 = 0.0;
-double returnStruct16BytesMixed2_a2 = 0.0;
-int returnStruct16BytesMixed2_a3 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct16BytesMixed2> returnStruct16BytesMixed2ResultPointer = nullptr;
-
-Struct16BytesMixed2 returnStruct16BytesMixed2CalculateResult() {
-  final resultPointer = calloc<Struct16BytesMixed2>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStruct16BytesMixed2_a0;
-  result.a1 = returnStruct16BytesMixed2_a1;
-  result.a2 = returnStruct16BytesMixed2_a2;
-  result.a3 = returnStruct16BytesMixed2_a3;
-
-  returnStruct16BytesMixed2ResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Return value split over FP and integer register in x64.
-/// The integer register contains half float half int.
-Struct16BytesMixed2 returnStruct16BytesMixed2(
-    double a0, double a1, double a2, int a3) {
-  print("returnStruct16BytesMixed2(${a0}, ${a1}, ${a2}, ${a3})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct16BytesMixed2 throwing on purpose!");
-  }
-
-  returnStruct16BytesMixed2_a0 = a0;
-  returnStruct16BytesMixed2_a1 = a1;
-  returnStruct16BytesMixed2_a2 = a2;
-  returnStruct16BytesMixed2_a3 = a3;
-
-  final result = returnStruct16BytesMixed2CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct16BytesMixed2AfterCallback() {
-  calloc.free(returnStruct16BytesMixed2ResultPointer);
-
-  final result = returnStruct16BytesMixed2CalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct16BytesMixed2ResultPointer);
-}
-
-typedef ReturnStruct17BytesIntType = Struct17BytesInt Function(
-    Int64, Int64, Int8);
-
-// Global variables to be able to test inputs after callback returned.
-int returnStruct17BytesInt_a0 = 0;
-int returnStruct17BytesInt_a1 = 0;
-int returnStruct17BytesInt_a2 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct17BytesInt> returnStruct17BytesIntResultPointer = nullptr;
-
-Struct17BytesInt returnStruct17BytesIntCalculateResult() {
-  final resultPointer = calloc<Struct17BytesInt>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStruct17BytesInt_a0;
-  result.a1 = returnStruct17BytesInt_a1;
-  result.a2 = returnStruct17BytesInt_a2;
-
-  returnStruct17BytesIntResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Return value returned in preallocated space passed by pointer on most ABIs.
-/// Is non word size on purpose, to test that structs are rounded up to word size
-/// on all ABIs.
-Struct17BytesInt returnStruct17BytesInt(int a0, int a1, int a2) {
-  print("returnStruct17BytesInt(${a0}, ${a1}, ${a2})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct17BytesInt throwing on purpose!");
-  }
-
-  returnStruct17BytesInt_a0 = a0;
-  returnStruct17BytesInt_a1 = a1;
-  returnStruct17BytesInt_a2 = a2;
-
-  final result = returnStruct17BytesIntCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct17BytesIntAfterCallback() {
-  calloc.free(returnStruct17BytesIntResultPointer);
-
-  final result = returnStruct17BytesIntCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct17BytesIntResultPointer);
-}
-
-typedef ReturnStruct19BytesHomogeneousUint8Type
-    = Struct19BytesHomogeneousUint8 Function(
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8);
-
-// Global variables to be able to test inputs after callback returned.
-int returnStruct19BytesHomogeneousUint8_a0 = 0;
-int returnStruct19BytesHomogeneousUint8_a1 = 0;
-int returnStruct19BytesHomogeneousUint8_a2 = 0;
-int returnStruct19BytesHomogeneousUint8_a3 = 0;
-int returnStruct19BytesHomogeneousUint8_a4 = 0;
-int returnStruct19BytesHomogeneousUint8_a5 = 0;
-int returnStruct19BytesHomogeneousUint8_a6 = 0;
-int returnStruct19BytesHomogeneousUint8_a7 = 0;
-int returnStruct19BytesHomogeneousUint8_a8 = 0;
-int returnStruct19BytesHomogeneousUint8_a9 = 0;
-int returnStruct19BytesHomogeneousUint8_a10 = 0;
-int returnStruct19BytesHomogeneousUint8_a11 = 0;
-int returnStruct19BytesHomogeneousUint8_a12 = 0;
-int returnStruct19BytesHomogeneousUint8_a13 = 0;
-int returnStruct19BytesHomogeneousUint8_a14 = 0;
-int returnStruct19BytesHomogeneousUint8_a15 = 0;
-int returnStruct19BytesHomogeneousUint8_a16 = 0;
-int returnStruct19BytesHomogeneousUint8_a17 = 0;
-int returnStruct19BytesHomogeneousUint8_a18 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct19BytesHomogeneousUint8>
-    returnStruct19BytesHomogeneousUint8ResultPointer = nullptr;
-
-Struct19BytesHomogeneousUint8
-    returnStruct19BytesHomogeneousUint8CalculateResult() {
-  final resultPointer = calloc<Struct19BytesHomogeneousUint8>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStruct19BytesHomogeneousUint8_a0;
-  result.a1 = returnStruct19BytesHomogeneousUint8_a1;
-  result.a2 = returnStruct19BytesHomogeneousUint8_a2;
-  result.a3 = returnStruct19BytesHomogeneousUint8_a3;
-  result.a4 = returnStruct19BytesHomogeneousUint8_a4;
-  result.a5 = returnStruct19BytesHomogeneousUint8_a5;
-  result.a6 = returnStruct19BytesHomogeneousUint8_a6;
-  result.a7 = returnStruct19BytesHomogeneousUint8_a7;
-  result.a8 = returnStruct19BytesHomogeneousUint8_a8;
-  result.a9 = returnStruct19BytesHomogeneousUint8_a9;
-  result.a10 = returnStruct19BytesHomogeneousUint8_a10;
-  result.a11 = returnStruct19BytesHomogeneousUint8_a11;
-  result.a12 = returnStruct19BytesHomogeneousUint8_a12;
-  result.a13 = returnStruct19BytesHomogeneousUint8_a13;
-  result.a14 = returnStruct19BytesHomogeneousUint8_a14;
-  result.a15 = returnStruct19BytesHomogeneousUint8_a15;
-  result.a16 = returnStruct19BytesHomogeneousUint8_a16;
-  result.a17 = returnStruct19BytesHomogeneousUint8_a17;
-  result.a18 = returnStruct19BytesHomogeneousUint8_a18;
-
-  returnStruct19BytesHomogeneousUint8ResultPointer = resultPointer;
-
-  return result;
-}
-
-/// The minimum alignment of this struct is only 1 byte based on its fields.
-/// Test that the memory backing these structs is the right size and that
-/// dart:ffi trampolines do not write outside this size.
-Struct19BytesHomogeneousUint8 returnStruct19BytesHomogeneousUint8(
-    int a0,
-    int a1,
-    int a2,
-    int a3,
-    int a4,
-    int a5,
-    int a6,
-    int a7,
-    int a8,
-    int a9,
-    int a10,
-    int a11,
-    int a12,
-    int a13,
-    int a14,
-    int a15,
-    int a16,
-    int a17,
-    int a18) {
-  print(
-      "returnStruct19BytesHomogeneousUint8(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9}, ${a10}, ${a11}, ${a12}, ${a13}, ${a14}, ${a15}, ${a16}, ${a17}, ${a18})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct19BytesHomogeneousUint8 throwing on purpose!");
-  }
-
-  returnStruct19BytesHomogeneousUint8_a0 = a0;
-  returnStruct19BytesHomogeneousUint8_a1 = a1;
-  returnStruct19BytesHomogeneousUint8_a2 = a2;
-  returnStruct19BytesHomogeneousUint8_a3 = a3;
-  returnStruct19BytesHomogeneousUint8_a4 = a4;
-  returnStruct19BytesHomogeneousUint8_a5 = a5;
-  returnStruct19BytesHomogeneousUint8_a6 = a6;
-  returnStruct19BytesHomogeneousUint8_a7 = a7;
-  returnStruct19BytesHomogeneousUint8_a8 = a8;
-  returnStruct19BytesHomogeneousUint8_a9 = a9;
-  returnStruct19BytesHomogeneousUint8_a10 = a10;
-  returnStruct19BytesHomogeneousUint8_a11 = a11;
-  returnStruct19BytesHomogeneousUint8_a12 = a12;
-  returnStruct19BytesHomogeneousUint8_a13 = a13;
-  returnStruct19BytesHomogeneousUint8_a14 = a14;
-  returnStruct19BytesHomogeneousUint8_a15 = a15;
-  returnStruct19BytesHomogeneousUint8_a16 = a16;
-  returnStruct19BytesHomogeneousUint8_a17 = a17;
-  returnStruct19BytesHomogeneousUint8_a18 = a18;
-
-  final result = returnStruct19BytesHomogeneousUint8CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct19BytesHomogeneousUint8AfterCallback() {
-  calloc.free(returnStruct19BytesHomogeneousUint8ResultPointer);
-
-  final result = returnStruct19BytesHomogeneousUint8CalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct19BytesHomogeneousUint8ResultPointer);
-}
-
-typedef ReturnStruct20BytesHomogeneousInt32Type = Struct20BytesHomogeneousInt32
-    Function(Int32, Int32, Int32, Int32, Int32);
-
-// Global variables to be able to test inputs after callback returned.
-int returnStruct20BytesHomogeneousInt32_a0 = 0;
-int returnStruct20BytesHomogeneousInt32_a1 = 0;
-int returnStruct20BytesHomogeneousInt32_a2 = 0;
-int returnStruct20BytesHomogeneousInt32_a3 = 0;
-int returnStruct20BytesHomogeneousInt32_a4 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct20BytesHomogeneousInt32>
-    returnStruct20BytesHomogeneousInt32ResultPointer = nullptr;
-
-Struct20BytesHomogeneousInt32
-    returnStruct20BytesHomogeneousInt32CalculateResult() {
-  final resultPointer = calloc<Struct20BytesHomogeneousInt32>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStruct20BytesHomogeneousInt32_a0;
-  result.a1 = returnStruct20BytesHomogeneousInt32_a1;
-  result.a2 = returnStruct20BytesHomogeneousInt32_a2;
-  result.a3 = returnStruct20BytesHomogeneousInt32_a3;
-  result.a4 = returnStruct20BytesHomogeneousInt32_a4;
-
-  returnStruct20BytesHomogeneousInt32ResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Return value too big to go in cpu registers on arm64.
-Struct20BytesHomogeneousInt32 returnStruct20BytesHomogeneousInt32(
-    int a0, int a1, int a2, int a3, int a4) {
-  print(
-      "returnStruct20BytesHomogeneousInt32(${a0}, ${a1}, ${a2}, ${a3}, ${a4})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct20BytesHomogeneousInt32 throwing on purpose!");
-  }
-
-  returnStruct20BytesHomogeneousInt32_a0 = a0;
-  returnStruct20BytesHomogeneousInt32_a1 = a1;
-  returnStruct20BytesHomogeneousInt32_a2 = a2;
-  returnStruct20BytesHomogeneousInt32_a3 = a3;
-  returnStruct20BytesHomogeneousInt32_a4 = a4;
-
-  final result = returnStruct20BytesHomogeneousInt32CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct20BytesHomogeneousInt32AfterCallback() {
-  calloc.free(returnStruct20BytesHomogeneousInt32ResultPointer);
-
-  final result = returnStruct20BytesHomogeneousInt32CalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct20BytesHomogeneousInt32ResultPointer);
-}
-
-typedef ReturnStruct20BytesHomogeneousFloatType = Struct20BytesHomogeneousFloat
-    Function(Float, Float, Float, Float, Float);
-
-// Global variables to be able to test inputs after callback returned.
-double returnStruct20BytesHomogeneousFloat_a0 = 0.0;
-double returnStruct20BytesHomogeneousFloat_a1 = 0.0;
-double returnStruct20BytesHomogeneousFloat_a2 = 0.0;
-double returnStruct20BytesHomogeneousFloat_a3 = 0.0;
-double returnStruct20BytesHomogeneousFloat_a4 = 0.0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct20BytesHomogeneousFloat>
-    returnStruct20BytesHomogeneousFloatResultPointer = nullptr;
-
-Struct20BytesHomogeneousFloat
-    returnStruct20BytesHomogeneousFloatCalculateResult() {
-  final resultPointer = calloc<Struct20BytesHomogeneousFloat>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStruct20BytesHomogeneousFloat_a0;
-  result.a1 = returnStruct20BytesHomogeneousFloat_a1;
-  result.a2 = returnStruct20BytesHomogeneousFloat_a2;
-  result.a3 = returnStruct20BytesHomogeneousFloat_a3;
-  result.a4 = returnStruct20BytesHomogeneousFloat_a4;
-
-  returnStruct20BytesHomogeneousFloatResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Return value too big to go in FPU registers on x64, arm hardfp and arm64.
-Struct20BytesHomogeneousFloat returnStruct20BytesHomogeneousFloat(
-    double a0, double a1, double a2, double a3, double a4) {
-  print(
-      "returnStruct20BytesHomogeneousFloat(${a0}, ${a1}, ${a2}, ${a3}, ${a4})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct20BytesHomogeneousFloat throwing on purpose!");
-  }
-
-  returnStruct20BytesHomogeneousFloat_a0 = a0;
-  returnStruct20BytesHomogeneousFloat_a1 = a1;
-  returnStruct20BytesHomogeneousFloat_a2 = a2;
-  returnStruct20BytesHomogeneousFloat_a3 = a3;
-  returnStruct20BytesHomogeneousFloat_a4 = a4;
-
-  final result = returnStruct20BytesHomogeneousFloatCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct20BytesHomogeneousFloatAfterCallback() {
-  calloc.free(returnStruct20BytesHomogeneousFloatResultPointer);
-
-  final result = returnStruct20BytesHomogeneousFloatCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct20BytesHomogeneousFloatResultPointer);
-}
-
-typedef ReturnStruct32BytesHomogeneousDoubleType
-    = Struct32BytesHomogeneousDouble Function(Double, Double, Double, Double);
-
-// Global variables to be able to test inputs after callback returned.
-double returnStruct32BytesHomogeneousDouble_a0 = 0.0;
-double returnStruct32BytesHomogeneousDouble_a1 = 0.0;
-double returnStruct32BytesHomogeneousDouble_a2 = 0.0;
-double returnStruct32BytesHomogeneousDouble_a3 = 0.0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct32BytesHomogeneousDouble>
-    returnStruct32BytesHomogeneousDoubleResultPointer = nullptr;
-
-Struct32BytesHomogeneousDouble
-    returnStruct32BytesHomogeneousDoubleCalculateResult() {
-  final resultPointer = calloc<Struct32BytesHomogeneousDouble>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStruct32BytesHomogeneousDouble_a0;
-  result.a1 = returnStruct32BytesHomogeneousDouble_a1;
-  result.a2 = returnStruct32BytesHomogeneousDouble_a2;
-  result.a3 = returnStruct32BytesHomogeneousDouble_a3;
-
-  returnStruct32BytesHomogeneousDoubleResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Return value in FPU registers on arm64.
-Struct32BytesHomogeneousDouble returnStruct32BytesHomogeneousDouble(
-    double a0, double a1, double a2, double a3) {
-  print("returnStruct32BytesHomogeneousDouble(${a0}, ${a1}, ${a2}, ${a3})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "ReturnStruct32BytesHomogeneousDouble throwing on purpose!");
-  }
-
-  returnStruct32BytesHomogeneousDouble_a0 = a0;
-  returnStruct32BytesHomogeneousDouble_a1 = a1;
-  returnStruct32BytesHomogeneousDouble_a2 = a2;
-  returnStruct32BytesHomogeneousDouble_a3 = a3;
-
-  final result = returnStruct32BytesHomogeneousDoubleCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct32BytesHomogeneousDoubleAfterCallback() {
-  calloc.free(returnStruct32BytesHomogeneousDoubleResultPointer);
-
-  final result = returnStruct32BytesHomogeneousDoubleCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct32BytesHomogeneousDoubleResultPointer);
-}
-
-typedef ReturnStruct40BytesHomogeneousDoubleType
-    = Struct40BytesHomogeneousDouble Function(
-        Double, Double, Double, Double, Double);
-
-// Global variables to be able to test inputs after callback returned.
-double returnStruct40BytesHomogeneousDouble_a0 = 0.0;
-double returnStruct40BytesHomogeneousDouble_a1 = 0.0;
-double returnStruct40BytesHomogeneousDouble_a2 = 0.0;
-double returnStruct40BytesHomogeneousDouble_a3 = 0.0;
-double returnStruct40BytesHomogeneousDouble_a4 = 0.0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct40BytesHomogeneousDouble>
-    returnStruct40BytesHomogeneousDoubleResultPointer = nullptr;
-
-Struct40BytesHomogeneousDouble
-    returnStruct40BytesHomogeneousDoubleCalculateResult() {
-  final resultPointer = calloc<Struct40BytesHomogeneousDouble>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStruct40BytesHomogeneousDouble_a0;
-  result.a1 = returnStruct40BytesHomogeneousDouble_a1;
-  result.a2 = returnStruct40BytesHomogeneousDouble_a2;
-  result.a3 = returnStruct40BytesHomogeneousDouble_a3;
-  result.a4 = returnStruct40BytesHomogeneousDouble_a4;
-
-  returnStruct40BytesHomogeneousDoubleResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Return value too big to go in FPU registers on arm64.
-Struct40BytesHomogeneousDouble returnStruct40BytesHomogeneousDouble(
-    double a0, double a1, double a2, double a3, double a4) {
-  print(
-      "returnStruct40BytesHomogeneousDouble(${a0}, ${a1}, ${a2}, ${a3}, ${a4})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "ReturnStruct40BytesHomogeneousDouble throwing on purpose!");
-  }
-
-  returnStruct40BytesHomogeneousDouble_a0 = a0;
-  returnStruct40BytesHomogeneousDouble_a1 = a1;
-  returnStruct40BytesHomogeneousDouble_a2 = a2;
-  returnStruct40BytesHomogeneousDouble_a3 = a3;
-  returnStruct40BytesHomogeneousDouble_a4 = a4;
-
-  final result = returnStruct40BytesHomogeneousDoubleCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct40BytesHomogeneousDoubleAfterCallback() {
-  calloc.free(returnStruct40BytesHomogeneousDoubleResultPointer);
-
-  final result = returnStruct40BytesHomogeneousDoubleCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct40BytesHomogeneousDoubleResultPointer);
-}
-
-typedef ReturnStruct1024BytesHomogeneousUint64Type
-    = Struct1024BytesHomogeneousUint64 Function(
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64);
-
-// Global variables to be able to test inputs after callback returned.
-int returnStruct1024BytesHomogeneousUint64_a0 = 0;
-int returnStruct1024BytesHomogeneousUint64_a1 = 0;
-int returnStruct1024BytesHomogeneousUint64_a2 = 0;
-int returnStruct1024BytesHomogeneousUint64_a3 = 0;
-int returnStruct1024BytesHomogeneousUint64_a4 = 0;
-int returnStruct1024BytesHomogeneousUint64_a5 = 0;
-int returnStruct1024BytesHomogeneousUint64_a6 = 0;
-int returnStruct1024BytesHomogeneousUint64_a7 = 0;
-int returnStruct1024BytesHomogeneousUint64_a8 = 0;
-int returnStruct1024BytesHomogeneousUint64_a9 = 0;
-int returnStruct1024BytesHomogeneousUint64_a10 = 0;
-int returnStruct1024BytesHomogeneousUint64_a11 = 0;
-int returnStruct1024BytesHomogeneousUint64_a12 = 0;
-int returnStruct1024BytesHomogeneousUint64_a13 = 0;
-int returnStruct1024BytesHomogeneousUint64_a14 = 0;
-int returnStruct1024BytesHomogeneousUint64_a15 = 0;
-int returnStruct1024BytesHomogeneousUint64_a16 = 0;
-int returnStruct1024BytesHomogeneousUint64_a17 = 0;
-int returnStruct1024BytesHomogeneousUint64_a18 = 0;
-int returnStruct1024BytesHomogeneousUint64_a19 = 0;
-int returnStruct1024BytesHomogeneousUint64_a20 = 0;
-int returnStruct1024BytesHomogeneousUint64_a21 = 0;
-int returnStruct1024BytesHomogeneousUint64_a22 = 0;
-int returnStruct1024BytesHomogeneousUint64_a23 = 0;
-int returnStruct1024BytesHomogeneousUint64_a24 = 0;
-int returnStruct1024BytesHomogeneousUint64_a25 = 0;
-int returnStruct1024BytesHomogeneousUint64_a26 = 0;
-int returnStruct1024BytesHomogeneousUint64_a27 = 0;
-int returnStruct1024BytesHomogeneousUint64_a28 = 0;
-int returnStruct1024BytesHomogeneousUint64_a29 = 0;
-int returnStruct1024BytesHomogeneousUint64_a30 = 0;
-int returnStruct1024BytesHomogeneousUint64_a31 = 0;
-int returnStruct1024BytesHomogeneousUint64_a32 = 0;
-int returnStruct1024BytesHomogeneousUint64_a33 = 0;
-int returnStruct1024BytesHomogeneousUint64_a34 = 0;
-int returnStruct1024BytesHomogeneousUint64_a35 = 0;
-int returnStruct1024BytesHomogeneousUint64_a36 = 0;
-int returnStruct1024BytesHomogeneousUint64_a37 = 0;
-int returnStruct1024BytesHomogeneousUint64_a38 = 0;
-int returnStruct1024BytesHomogeneousUint64_a39 = 0;
-int returnStruct1024BytesHomogeneousUint64_a40 = 0;
-int returnStruct1024BytesHomogeneousUint64_a41 = 0;
-int returnStruct1024BytesHomogeneousUint64_a42 = 0;
-int returnStruct1024BytesHomogeneousUint64_a43 = 0;
-int returnStruct1024BytesHomogeneousUint64_a44 = 0;
-int returnStruct1024BytesHomogeneousUint64_a45 = 0;
-int returnStruct1024BytesHomogeneousUint64_a46 = 0;
-int returnStruct1024BytesHomogeneousUint64_a47 = 0;
-int returnStruct1024BytesHomogeneousUint64_a48 = 0;
-int returnStruct1024BytesHomogeneousUint64_a49 = 0;
-int returnStruct1024BytesHomogeneousUint64_a50 = 0;
-int returnStruct1024BytesHomogeneousUint64_a51 = 0;
-int returnStruct1024BytesHomogeneousUint64_a52 = 0;
-int returnStruct1024BytesHomogeneousUint64_a53 = 0;
-int returnStruct1024BytesHomogeneousUint64_a54 = 0;
-int returnStruct1024BytesHomogeneousUint64_a55 = 0;
-int returnStruct1024BytesHomogeneousUint64_a56 = 0;
-int returnStruct1024BytesHomogeneousUint64_a57 = 0;
-int returnStruct1024BytesHomogeneousUint64_a58 = 0;
-int returnStruct1024BytesHomogeneousUint64_a59 = 0;
-int returnStruct1024BytesHomogeneousUint64_a60 = 0;
-int returnStruct1024BytesHomogeneousUint64_a61 = 0;
-int returnStruct1024BytesHomogeneousUint64_a62 = 0;
-int returnStruct1024BytesHomogeneousUint64_a63 = 0;
-int returnStruct1024BytesHomogeneousUint64_a64 = 0;
-int returnStruct1024BytesHomogeneousUint64_a65 = 0;
-int returnStruct1024BytesHomogeneousUint64_a66 = 0;
-int returnStruct1024BytesHomogeneousUint64_a67 = 0;
-int returnStruct1024BytesHomogeneousUint64_a68 = 0;
-int returnStruct1024BytesHomogeneousUint64_a69 = 0;
-int returnStruct1024BytesHomogeneousUint64_a70 = 0;
-int returnStruct1024BytesHomogeneousUint64_a71 = 0;
-int returnStruct1024BytesHomogeneousUint64_a72 = 0;
-int returnStruct1024BytesHomogeneousUint64_a73 = 0;
-int returnStruct1024BytesHomogeneousUint64_a74 = 0;
-int returnStruct1024BytesHomogeneousUint64_a75 = 0;
-int returnStruct1024BytesHomogeneousUint64_a76 = 0;
-int returnStruct1024BytesHomogeneousUint64_a77 = 0;
-int returnStruct1024BytesHomogeneousUint64_a78 = 0;
-int returnStruct1024BytesHomogeneousUint64_a79 = 0;
-int returnStruct1024BytesHomogeneousUint64_a80 = 0;
-int returnStruct1024BytesHomogeneousUint64_a81 = 0;
-int returnStruct1024BytesHomogeneousUint64_a82 = 0;
-int returnStruct1024BytesHomogeneousUint64_a83 = 0;
-int returnStruct1024BytesHomogeneousUint64_a84 = 0;
-int returnStruct1024BytesHomogeneousUint64_a85 = 0;
-int returnStruct1024BytesHomogeneousUint64_a86 = 0;
-int returnStruct1024BytesHomogeneousUint64_a87 = 0;
-int returnStruct1024BytesHomogeneousUint64_a88 = 0;
-int returnStruct1024BytesHomogeneousUint64_a89 = 0;
-int returnStruct1024BytesHomogeneousUint64_a90 = 0;
-int returnStruct1024BytesHomogeneousUint64_a91 = 0;
-int returnStruct1024BytesHomogeneousUint64_a92 = 0;
-int returnStruct1024BytesHomogeneousUint64_a93 = 0;
-int returnStruct1024BytesHomogeneousUint64_a94 = 0;
-int returnStruct1024BytesHomogeneousUint64_a95 = 0;
-int returnStruct1024BytesHomogeneousUint64_a96 = 0;
-int returnStruct1024BytesHomogeneousUint64_a97 = 0;
-int returnStruct1024BytesHomogeneousUint64_a98 = 0;
-int returnStruct1024BytesHomogeneousUint64_a99 = 0;
-int returnStruct1024BytesHomogeneousUint64_a100 = 0;
-int returnStruct1024BytesHomogeneousUint64_a101 = 0;
-int returnStruct1024BytesHomogeneousUint64_a102 = 0;
-int returnStruct1024BytesHomogeneousUint64_a103 = 0;
-int returnStruct1024BytesHomogeneousUint64_a104 = 0;
-int returnStruct1024BytesHomogeneousUint64_a105 = 0;
-int returnStruct1024BytesHomogeneousUint64_a106 = 0;
-int returnStruct1024BytesHomogeneousUint64_a107 = 0;
-int returnStruct1024BytesHomogeneousUint64_a108 = 0;
-int returnStruct1024BytesHomogeneousUint64_a109 = 0;
-int returnStruct1024BytesHomogeneousUint64_a110 = 0;
-int returnStruct1024BytesHomogeneousUint64_a111 = 0;
-int returnStruct1024BytesHomogeneousUint64_a112 = 0;
-int returnStruct1024BytesHomogeneousUint64_a113 = 0;
-int returnStruct1024BytesHomogeneousUint64_a114 = 0;
-int returnStruct1024BytesHomogeneousUint64_a115 = 0;
-int returnStruct1024BytesHomogeneousUint64_a116 = 0;
-int returnStruct1024BytesHomogeneousUint64_a117 = 0;
-int returnStruct1024BytesHomogeneousUint64_a118 = 0;
-int returnStruct1024BytesHomogeneousUint64_a119 = 0;
-int returnStruct1024BytesHomogeneousUint64_a120 = 0;
-int returnStruct1024BytesHomogeneousUint64_a121 = 0;
-int returnStruct1024BytesHomogeneousUint64_a122 = 0;
-int returnStruct1024BytesHomogeneousUint64_a123 = 0;
-int returnStruct1024BytesHomogeneousUint64_a124 = 0;
-int returnStruct1024BytesHomogeneousUint64_a125 = 0;
-int returnStruct1024BytesHomogeneousUint64_a126 = 0;
-int returnStruct1024BytesHomogeneousUint64_a127 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct1024BytesHomogeneousUint64>
-    returnStruct1024BytesHomogeneousUint64ResultPointer = nullptr;
-
-Struct1024BytesHomogeneousUint64
-    returnStruct1024BytesHomogeneousUint64CalculateResult() {
-  final resultPointer = calloc<Struct1024BytesHomogeneousUint64>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStruct1024BytesHomogeneousUint64_a0;
-  result.a1 = returnStruct1024BytesHomogeneousUint64_a1;
-  result.a2 = returnStruct1024BytesHomogeneousUint64_a2;
-  result.a3 = returnStruct1024BytesHomogeneousUint64_a3;
-  result.a4 = returnStruct1024BytesHomogeneousUint64_a4;
-  result.a5 = returnStruct1024BytesHomogeneousUint64_a5;
-  result.a6 = returnStruct1024BytesHomogeneousUint64_a6;
-  result.a7 = returnStruct1024BytesHomogeneousUint64_a7;
-  result.a8 = returnStruct1024BytesHomogeneousUint64_a8;
-  result.a9 = returnStruct1024BytesHomogeneousUint64_a9;
-  result.a10 = returnStruct1024BytesHomogeneousUint64_a10;
-  result.a11 = returnStruct1024BytesHomogeneousUint64_a11;
-  result.a12 = returnStruct1024BytesHomogeneousUint64_a12;
-  result.a13 = returnStruct1024BytesHomogeneousUint64_a13;
-  result.a14 = returnStruct1024BytesHomogeneousUint64_a14;
-  result.a15 = returnStruct1024BytesHomogeneousUint64_a15;
-  result.a16 = returnStruct1024BytesHomogeneousUint64_a16;
-  result.a17 = returnStruct1024BytesHomogeneousUint64_a17;
-  result.a18 = returnStruct1024BytesHomogeneousUint64_a18;
-  result.a19 = returnStruct1024BytesHomogeneousUint64_a19;
-  result.a20 = returnStruct1024BytesHomogeneousUint64_a20;
-  result.a21 = returnStruct1024BytesHomogeneousUint64_a21;
-  result.a22 = returnStruct1024BytesHomogeneousUint64_a22;
-  result.a23 = returnStruct1024BytesHomogeneousUint64_a23;
-  result.a24 = returnStruct1024BytesHomogeneousUint64_a24;
-  result.a25 = returnStruct1024BytesHomogeneousUint64_a25;
-  result.a26 = returnStruct1024BytesHomogeneousUint64_a26;
-  result.a27 = returnStruct1024BytesHomogeneousUint64_a27;
-  result.a28 = returnStruct1024BytesHomogeneousUint64_a28;
-  result.a29 = returnStruct1024BytesHomogeneousUint64_a29;
-  result.a30 = returnStruct1024BytesHomogeneousUint64_a30;
-  result.a31 = returnStruct1024BytesHomogeneousUint64_a31;
-  result.a32 = returnStruct1024BytesHomogeneousUint64_a32;
-  result.a33 = returnStruct1024BytesHomogeneousUint64_a33;
-  result.a34 = returnStruct1024BytesHomogeneousUint64_a34;
-  result.a35 = returnStruct1024BytesHomogeneousUint64_a35;
-  result.a36 = returnStruct1024BytesHomogeneousUint64_a36;
-  result.a37 = returnStruct1024BytesHomogeneousUint64_a37;
-  result.a38 = returnStruct1024BytesHomogeneousUint64_a38;
-  result.a39 = returnStruct1024BytesHomogeneousUint64_a39;
-  result.a40 = returnStruct1024BytesHomogeneousUint64_a40;
-  result.a41 = returnStruct1024BytesHomogeneousUint64_a41;
-  result.a42 = returnStruct1024BytesHomogeneousUint64_a42;
-  result.a43 = returnStruct1024BytesHomogeneousUint64_a43;
-  result.a44 = returnStruct1024BytesHomogeneousUint64_a44;
-  result.a45 = returnStruct1024BytesHomogeneousUint64_a45;
-  result.a46 = returnStruct1024BytesHomogeneousUint64_a46;
-  result.a47 = returnStruct1024BytesHomogeneousUint64_a47;
-  result.a48 = returnStruct1024BytesHomogeneousUint64_a48;
-  result.a49 = returnStruct1024BytesHomogeneousUint64_a49;
-  result.a50 = returnStruct1024BytesHomogeneousUint64_a50;
-  result.a51 = returnStruct1024BytesHomogeneousUint64_a51;
-  result.a52 = returnStruct1024BytesHomogeneousUint64_a52;
-  result.a53 = returnStruct1024BytesHomogeneousUint64_a53;
-  result.a54 = returnStruct1024BytesHomogeneousUint64_a54;
-  result.a55 = returnStruct1024BytesHomogeneousUint64_a55;
-  result.a56 = returnStruct1024BytesHomogeneousUint64_a56;
-  result.a57 = returnStruct1024BytesHomogeneousUint64_a57;
-  result.a58 = returnStruct1024BytesHomogeneousUint64_a58;
-  result.a59 = returnStruct1024BytesHomogeneousUint64_a59;
-  result.a60 = returnStruct1024BytesHomogeneousUint64_a60;
-  result.a61 = returnStruct1024BytesHomogeneousUint64_a61;
-  result.a62 = returnStruct1024BytesHomogeneousUint64_a62;
-  result.a63 = returnStruct1024BytesHomogeneousUint64_a63;
-  result.a64 = returnStruct1024BytesHomogeneousUint64_a64;
-  result.a65 = returnStruct1024BytesHomogeneousUint64_a65;
-  result.a66 = returnStruct1024BytesHomogeneousUint64_a66;
-  result.a67 = returnStruct1024BytesHomogeneousUint64_a67;
-  result.a68 = returnStruct1024BytesHomogeneousUint64_a68;
-  result.a69 = returnStruct1024BytesHomogeneousUint64_a69;
-  result.a70 = returnStruct1024BytesHomogeneousUint64_a70;
-  result.a71 = returnStruct1024BytesHomogeneousUint64_a71;
-  result.a72 = returnStruct1024BytesHomogeneousUint64_a72;
-  result.a73 = returnStruct1024BytesHomogeneousUint64_a73;
-  result.a74 = returnStruct1024BytesHomogeneousUint64_a74;
-  result.a75 = returnStruct1024BytesHomogeneousUint64_a75;
-  result.a76 = returnStruct1024BytesHomogeneousUint64_a76;
-  result.a77 = returnStruct1024BytesHomogeneousUint64_a77;
-  result.a78 = returnStruct1024BytesHomogeneousUint64_a78;
-  result.a79 = returnStruct1024BytesHomogeneousUint64_a79;
-  result.a80 = returnStruct1024BytesHomogeneousUint64_a80;
-  result.a81 = returnStruct1024BytesHomogeneousUint64_a81;
-  result.a82 = returnStruct1024BytesHomogeneousUint64_a82;
-  result.a83 = returnStruct1024BytesHomogeneousUint64_a83;
-  result.a84 = returnStruct1024BytesHomogeneousUint64_a84;
-  result.a85 = returnStruct1024BytesHomogeneousUint64_a85;
-  result.a86 = returnStruct1024BytesHomogeneousUint64_a86;
-  result.a87 = returnStruct1024BytesHomogeneousUint64_a87;
-  result.a88 = returnStruct1024BytesHomogeneousUint64_a88;
-  result.a89 = returnStruct1024BytesHomogeneousUint64_a89;
-  result.a90 = returnStruct1024BytesHomogeneousUint64_a90;
-  result.a91 = returnStruct1024BytesHomogeneousUint64_a91;
-  result.a92 = returnStruct1024BytesHomogeneousUint64_a92;
-  result.a93 = returnStruct1024BytesHomogeneousUint64_a93;
-  result.a94 = returnStruct1024BytesHomogeneousUint64_a94;
-  result.a95 = returnStruct1024BytesHomogeneousUint64_a95;
-  result.a96 = returnStruct1024BytesHomogeneousUint64_a96;
-  result.a97 = returnStruct1024BytesHomogeneousUint64_a97;
-  result.a98 = returnStruct1024BytesHomogeneousUint64_a98;
-  result.a99 = returnStruct1024BytesHomogeneousUint64_a99;
-  result.a100 = returnStruct1024BytesHomogeneousUint64_a100;
-  result.a101 = returnStruct1024BytesHomogeneousUint64_a101;
-  result.a102 = returnStruct1024BytesHomogeneousUint64_a102;
-  result.a103 = returnStruct1024BytesHomogeneousUint64_a103;
-  result.a104 = returnStruct1024BytesHomogeneousUint64_a104;
-  result.a105 = returnStruct1024BytesHomogeneousUint64_a105;
-  result.a106 = returnStruct1024BytesHomogeneousUint64_a106;
-  result.a107 = returnStruct1024BytesHomogeneousUint64_a107;
-  result.a108 = returnStruct1024BytesHomogeneousUint64_a108;
-  result.a109 = returnStruct1024BytesHomogeneousUint64_a109;
-  result.a110 = returnStruct1024BytesHomogeneousUint64_a110;
-  result.a111 = returnStruct1024BytesHomogeneousUint64_a111;
-  result.a112 = returnStruct1024BytesHomogeneousUint64_a112;
-  result.a113 = returnStruct1024BytesHomogeneousUint64_a113;
-  result.a114 = returnStruct1024BytesHomogeneousUint64_a114;
-  result.a115 = returnStruct1024BytesHomogeneousUint64_a115;
-  result.a116 = returnStruct1024BytesHomogeneousUint64_a116;
-  result.a117 = returnStruct1024BytesHomogeneousUint64_a117;
-  result.a118 = returnStruct1024BytesHomogeneousUint64_a118;
-  result.a119 = returnStruct1024BytesHomogeneousUint64_a119;
-  result.a120 = returnStruct1024BytesHomogeneousUint64_a120;
-  result.a121 = returnStruct1024BytesHomogeneousUint64_a121;
-  result.a122 = returnStruct1024BytesHomogeneousUint64_a122;
-  result.a123 = returnStruct1024BytesHomogeneousUint64_a123;
-  result.a124 = returnStruct1024BytesHomogeneousUint64_a124;
-  result.a125 = returnStruct1024BytesHomogeneousUint64_a125;
-  result.a126 = returnStruct1024BytesHomogeneousUint64_a126;
-  result.a127 = returnStruct1024BytesHomogeneousUint64_a127;
-
-  returnStruct1024BytesHomogeneousUint64ResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Test 1kb struct.
-Struct1024BytesHomogeneousUint64 returnStruct1024BytesHomogeneousUint64(
-    int a0,
-    int a1,
-    int a2,
-    int a3,
-    int a4,
-    int a5,
-    int a6,
-    int a7,
-    int a8,
-    int a9,
-    int a10,
-    int a11,
-    int a12,
-    int a13,
-    int a14,
-    int a15,
-    int a16,
-    int a17,
-    int a18,
-    int a19,
-    int a20,
-    int a21,
-    int a22,
-    int a23,
-    int a24,
-    int a25,
-    int a26,
-    int a27,
-    int a28,
-    int a29,
-    int a30,
-    int a31,
-    int a32,
-    int a33,
-    int a34,
-    int a35,
-    int a36,
-    int a37,
-    int a38,
-    int a39,
-    int a40,
-    int a41,
-    int a42,
-    int a43,
-    int a44,
-    int a45,
-    int a46,
-    int a47,
-    int a48,
-    int a49,
-    int a50,
-    int a51,
-    int a52,
-    int a53,
-    int a54,
-    int a55,
-    int a56,
-    int a57,
-    int a58,
-    int a59,
-    int a60,
-    int a61,
-    int a62,
-    int a63,
-    int a64,
-    int a65,
-    int a66,
-    int a67,
-    int a68,
-    int a69,
-    int a70,
-    int a71,
-    int a72,
-    int a73,
-    int a74,
-    int a75,
-    int a76,
-    int a77,
-    int a78,
-    int a79,
-    int a80,
-    int a81,
-    int a82,
-    int a83,
-    int a84,
-    int a85,
-    int a86,
-    int a87,
-    int a88,
-    int a89,
-    int a90,
-    int a91,
-    int a92,
-    int a93,
-    int a94,
-    int a95,
-    int a96,
-    int a97,
-    int a98,
-    int a99,
-    int a100,
-    int a101,
-    int a102,
-    int a103,
-    int a104,
-    int a105,
-    int a106,
-    int a107,
-    int a108,
-    int a109,
-    int a110,
-    int a111,
-    int a112,
-    int a113,
-    int a114,
-    int a115,
-    int a116,
-    int a117,
-    int a118,
-    int a119,
-    int a120,
-    int a121,
-    int a122,
-    int a123,
-    int a124,
-    int a125,
-    int a126,
-    int a127) {
-  print(
-      "returnStruct1024BytesHomogeneousUint64(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9}, ${a10}, ${a11}, ${a12}, ${a13}, ${a14}, ${a15}, ${a16}, ${a17}, ${a18}, ${a19}, ${a20}, ${a21}, ${a22}, ${a23}, ${a24}, ${a25}, ${a26}, ${a27}, ${a28}, ${a29}, ${a30}, ${a31}, ${a32}, ${a33}, ${a34}, ${a35}, ${a36}, ${a37}, ${a38}, ${a39}, ${a40}, ${a41}, ${a42}, ${a43}, ${a44}, ${a45}, ${a46}, ${a47}, ${a48}, ${a49}, ${a50}, ${a51}, ${a52}, ${a53}, ${a54}, ${a55}, ${a56}, ${a57}, ${a58}, ${a59}, ${a60}, ${a61}, ${a62}, ${a63}, ${a64}, ${a65}, ${a66}, ${a67}, ${a68}, ${a69}, ${a70}, ${a71}, ${a72}, ${a73}, ${a74}, ${a75}, ${a76}, ${a77}, ${a78}, ${a79}, ${a80}, ${a81}, ${a82}, ${a83}, ${a84}, ${a85}, ${a86}, ${a87}, ${a88}, ${a89}, ${a90}, ${a91}, ${a92}, ${a93}, ${a94}, ${a95}, ${a96}, ${a97}, ${a98}, ${a99}, ${a100}, ${a101}, ${a102}, ${a103}, ${a104}, ${a105}, ${a106}, ${a107}, ${a108}, ${a109}, ${a110}, ${a111}, ${a112}, ${a113}, ${a114}, ${a115}, ${a116}, ${a117}, ${a118}, ${a119}, ${a120}, ${a121}, ${a122}, ${a123}, ${a124}, ${a125}, ${a126}, ${a127})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "ReturnStruct1024BytesHomogeneousUint64 throwing on purpose!");
-  }
-
-  returnStruct1024BytesHomogeneousUint64_a0 = a0;
-  returnStruct1024BytesHomogeneousUint64_a1 = a1;
-  returnStruct1024BytesHomogeneousUint64_a2 = a2;
-  returnStruct1024BytesHomogeneousUint64_a3 = a3;
-  returnStruct1024BytesHomogeneousUint64_a4 = a4;
-  returnStruct1024BytesHomogeneousUint64_a5 = a5;
-  returnStruct1024BytesHomogeneousUint64_a6 = a6;
-  returnStruct1024BytesHomogeneousUint64_a7 = a7;
-  returnStruct1024BytesHomogeneousUint64_a8 = a8;
-  returnStruct1024BytesHomogeneousUint64_a9 = a9;
-  returnStruct1024BytesHomogeneousUint64_a10 = a10;
-  returnStruct1024BytesHomogeneousUint64_a11 = a11;
-  returnStruct1024BytesHomogeneousUint64_a12 = a12;
-  returnStruct1024BytesHomogeneousUint64_a13 = a13;
-  returnStruct1024BytesHomogeneousUint64_a14 = a14;
-  returnStruct1024BytesHomogeneousUint64_a15 = a15;
-  returnStruct1024BytesHomogeneousUint64_a16 = a16;
-  returnStruct1024BytesHomogeneousUint64_a17 = a17;
-  returnStruct1024BytesHomogeneousUint64_a18 = a18;
-  returnStruct1024BytesHomogeneousUint64_a19 = a19;
-  returnStruct1024BytesHomogeneousUint64_a20 = a20;
-  returnStruct1024BytesHomogeneousUint64_a21 = a21;
-  returnStruct1024BytesHomogeneousUint64_a22 = a22;
-  returnStruct1024BytesHomogeneousUint64_a23 = a23;
-  returnStruct1024BytesHomogeneousUint64_a24 = a24;
-  returnStruct1024BytesHomogeneousUint64_a25 = a25;
-  returnStruct1024BytesHomogeneousUint64_a26 = a26;
-  returnStruct1024BytesHomogeneousUint64_a27 = a27;
-  returnStruct1024BytesHomogeneousUint64_a28 = a28;
-  returnStruct1024BytesHomogeneousUint64_a29 = a29;
-  returnStruct1024BytesHomogeneousUint64_a30 = a30;
-  returnStruct1024BytesHomogeneousUint64_a31 = a31;
-  returnStruct1024BytesHomogeneousUint64_a32 = a32;
-  returnStruct1024BytesHomogeneousUint64_a33 = a33;
-  returnStruct1024BytesHomogeneousUint64_a34 = a34;
-  returnStruct1024BytesHomogeneousUint64_a35 = a35;
-  returnStruct1024BytesHomogeneousUint64_a36 = a36;
-  returnStruct1024BytesHomogeneousUint64_a37 = a37;
-  returnStruct1024BytesHomogeneousUint64_a38 = a38;
-  returnStruct1024BytesHomogeneousUint64_a39 = a39;
-  returnStruct1024BytesHomogeneousUint64_a40 = a40;
-  returnStruct1024BytesHomogeneousUint64_a41 = a41;
-  returnStruct1024BytesHomogeneousUint64_a42 = a42;
-  returnStruct1024BytesHomogeneousUint64_a43 = a43;
-  returnStruct1024BytesHomogeneousUint64_a44 = a44;
-  returnStruct1024BytesHomogeneousUint64_a45 = a45;
-  returnStruct1024BytesHomogeneousUint64_a46 = a46;
-  returnStruct1024BytesHomogeneousUint64_a47 = a47;
-  returnStruct1024BytesHomogeneousUint64_a48 = a48;
-  returnStruct1024BytesHomogeneousUint64_a49 = a49;
-  returnStruct1024BytesHomogeneousUint64_a50 = a50;
-  returnStruct1024BytesHomogeneousUint64_a51 = a51;
-  returnStruct1024BytesHomogeneousUint64_a52 = a52;
-  returnStruct1024BytesHomogeneousUint64_a53 = a53;
-  returnStruct1024BytesHomogeneousUint64_a54 = a54;
-  returnStruct1024BytesHomogeneousUint64_a55 = a55;
-  returnStruct1024BytesHomogeneousUint64_a56 = a56;
-  returnStruct1024BytesHomogeneousUint64_a57 = a57;
-  returnStruct1024BytesHomogeneousUint64_a58 = a58;
-  returnStruct1024BytesHomogeneousUint64_a59 = a59;
-  returnStruct1024BytesHomogeneousUint64_a60 = a60;
-  returnStruct1024BytesHomogeneousUint64_a61 = a61;
-  returnStruct1024BytesHomogeneousUint64_a62 = a62;
-  returnStruct1024BytesHomogeneousUint64_a63 = a63;
-  returnStruct1024BytesHomogeneousUint64_a64 = a64;
-  returnStruct1024BytesHomogeneousUint64_a65 = a65;
-  returnStruct1024BytesHomogeneousUint64_a66 = a66;
-  returnStruct1024BytesHomogeneousUint64_a67 = a67;
-  returnStruct1024BytesHomogeneousUint64_a68 = a68;
-  returnStruct1024BytesHomogeneousUint64_a69 = a69;
-  returnStruct1024BytesHomogeneousUint64_a70 = a70;
-  returnStruct1024BytesHomogeneousUint64_a71 = a71;
-  returnStruct1024BytesHomogeneousUint64_a72 = a72;
-  returnStruct1024BytesHomogeneousUint64_a73 = a73;
-  returnStruct1024BytesHomogeneousUint64_a74 = a74;
-  returnStruct1024BytesHomogeneousUint64_a75 = a75;
-  returnStruct1024BytesHomogeneousUint64_a76 = a76;
-  returnStruct1024BytesHomogeneousUint64_a77 = a77;
-  returnStruct1024BytesHomogeneousUint64_a78 = a78;
-  returnStruct1024BytesHomogeneousUint64_a79 = a79;
-  returnStruct1024BytesHomogeneousUint64_a80 = a80;
-  returnStruct1024BytesHomogeneousUint64_a81 = a81;
-  returnStruct1024BytesHomogeneousUint64_a82 = a82;
-  returnStruct1024BytesHomogeneousUint64_a83 = a83;
-  returnStruct1024BytesHomogeneousUint64_a84 = a84;
-  returnStruct1024BytesHomogeneousUint64_a85 = a85;
-  returnStruct1024BytesHomogeneousUint64_a86 = a86;
-  returnStruct1024BytesHomogeneousUint64_a87 = a87;
-  returnStruct1024BytesHomogeneousUint64_a88 = a88;
-  returnStruct1024BytesHomogeneousUint64_a89 = a89;
-  returnStruct1024BytesHomogeneousUint64_a90 = a90;
-  returnStruct1024BytesHomogeneousUint64_a91 = a91;
-  returnStruct1024BytesHomogeneousUint64_a92 = a92;
-  returnStruct1024BytesHomogeneousUint64_a93 = a93;
-  returnStruct1024BytesHomogeneousUint64_a94 = a94;
-  returnStruct1024BytesHomogeneousUint64_a95 = a95;
-  returnStruct1024BytesHomogeneousUint64_a96 = a96;
-  returnStruct1024BytesHomogeneousUint64_a97 = a97;
-  returnStruct1024BytesHomogeneousUint64_a98 = a98;
-  returnStruct1024BytesHomogeneousUint64_a99 = a99;
-  returnStruct1024BytesHomogeneousUint64_a100 = a100;
-  returnStruct1024BytesHomogeneousUint64_a101 = a101;
-  returnStruct1024BytesHomogeneousUint64_a102 = a102;
-  returnStruct1024BytesHomogeneousUint64_a103 = a103;
-  returnStruct1024BytesHomogeneousUint64_a104 = a104;
-  returnStruct1024BytesHomogeneousUint64_a105 = a105;
-  returnStruct1024BytesHomogeneousUint64_a106 = a106;
-  returnStruct1024BytesHomogeneousUint64_a107 = a107;
-  returnStruct1024BytesHomogeneousUint64_a108 = a108;
-  returnStruct1024BytesHomogeneousUint64_a109 = a109;
-  returnStruct1024BytesHomogeneousUint64_a110 = a110;
-  returnStruct1024BytesHomogeneousUint64_a111 = a111;
-  returnStruct1024BytesHomogeneousUint64_a112 = a112;
-  returnStruct1024BytesHomogeneousUint64_a113 = a113;
-  returnStruct1024BytesHomogeneousUint64_a114 = a114;
-  returnStruct1024BytesHomogeneousUint64_a115 = a115;
-  returnStruct1024BytesHomogeneousUint64_a116 = a116;
-  returnStruct1024BytesHomogeneousUint64_a117 = a117;
-  returnStruct1024BytesHomogeneousUint64_a118 = a118;
-  returnStruct1024BytesHomogeneousUint64_a119 = a119;
-  returnStruct1024BytesHomogeneousUint64_a120 = a120;
-  returnStruct1024BytesHomogeneousUint64_a121 = a121;
-  returnStruct1024BytesHomogeneousUint64_a122 = a122;
-  returnStruct1024BytesHomogeneousUint64_a123 = a123;
-  returnStruct1024BytesHomogeneousUint64_a124 = a124;
-  returnStruct1024BytesHomogeneousUint64_a125 = a125;
-  returnStruct1024BytesHomogeneousUint64_a126 = a126;
-  returnStruct1024BytesHomogeneousUint64_a127 = a127;
-
-  final result = returnStruct1024BytesHomogeneousUint64CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct1024BytesHomogeneousUint64AfterCallback() {
-  calloc.free(returnStruct1024BytesHomogeneousUint64ResultPointer);
-
-  final result = returnStruct1024BytesHomogeneousUint64CalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct1024BytesHomogeneousUint64ResultPointer);
-}
-
-typedef ReturnStruct3BytesPackedIntType = Struct3BytesPackedInt Function(
-    Int8, Int16);
-
-// Global variables to be able to test inputs after callback returned.
-int returnStruct3BytesPackedInt_a0 = 0;
-int returnStruct3BytesPackedInt_a1 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct3BytesPackedInt> returnStruct3BytesPackedIntResultPointer =
-    nullptr;
-
-Struct3BytesPackedInt returnStruct3BytesPackedIntCalculateResult() {
-  final resultPointer = calloc<Struct3BytesPackedInt>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStruct3BytesPackedInt_a0;
-  result.a1 = returnStruct3BytesPackedInt_a1;
-
-  returnStruct3BytesPackedIntResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Small struct with mis-aligned member.
-Struct3BytesPackedInt returnStruct3BytesPackedInt(int a0, int a1) {
-  print("returnStruct3BytesPackedInt(${a0}, ${a1})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct3BytesPackedInt throwing on purpose!");
-  }
-
-  returnStruct3BytesPackedInt_a0 = a0;
-  returnStruct3BytesPackedInt_a1 = a1;
-
-  final result = returnStruct3BytesPackedIntCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct3BytesPackedIntAfterCallback() {
-  calloc.free(returnStruct3BytesPackedIntResultPointer);
-
-  final result = returnStruct3BytesPackedIntCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct3BytesPackedIntResultPointer);
-}
-
-typedef ReturnStruct8BytesPackedIntType = Struct8BytesPackedInt Function(
-    Uint8, Uint32, Uint8, Uint8, Uint8);
-
-// Global variables to be able to test inputs after callback returned.
-int returnStruct8BytesPackedInt_a0 = 0;
-int returnStruct8BytesPackedInt_a1 = 0;
-int returnStruct8BytesPackedInt_a2 = 0;
-int returnStruct8BytesPackedInt_a3 = 0;
-int returnStruct8BytesPackedInt_a4 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct8BytesPackedInt> returnStruct8BytesPackedIntResultPointer =
-    nullptr;
-
-Struct8BytesPackedInt returnStruct8BytesPackedIntCalculateResult() {
-  final resultPointer = calloc<Struct8BytesPackedInt>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStruct8BytesPackedInt_a0;
-  result.a1 = returnStruct8BytesPackedInt_a1;
-  result.a2 = returnStruct8BytesPackedInt_a2;
-  result.a3 = returnStruct8BytesPackedInt_a3;
-  result.a4 = returnStruct8BytesPackedInt_a4;
-
-  returnStruct8BytesPackedIntResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Struct with mis-aligned member.
-Struct8BytesPackedInt returnStruct8BytesPackedInt(
-    int a0, int a1, int a2, int a3, int a4) {
-  print("returnStruct8BytesPackedInt(${a0}, ${a1}, ${a2}, ${a3}, ${a4})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct8BytesPackedInt throwing on purpose!");
-  }
-
-  returnStruct8BytesPackedInt_a0 = a0;
-  returnStruct8BytesPackedInt_a1 = a1;
-  returnStruct8BytesPackedInt_a2 = a2;
-  returnStruct8BytesPackedInt_a3 = a3;
-  returnStruct8BytesPackedInt_a4 = a4;
-
-  final result = returnStruct8BytesPackedIntCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct8BytesPackedIntAfterCallback() {
-  calloc.free(returnStruct8BytesPackedIntResultPointer);
-
-  final result = returnStruct8BytesPackedIntCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct8BytesPackedIntResultPointer);
-}
-
-typedef ReturnStruct9BytesPackedMixedType = Struct9BytesPackedMixed Function(
-    Uint8, Double);
-
-// Global variables to be able to test inputs after callback returned.
-int returnStruct9BytesPackedMixed_a0 = 0;
-double returnStruct9BytesPackedMixed_a1 = 0.0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct9BytesPackedMixed> returnStruct9BytesPackedMixedResultPointer =
-    nullptr;
-
-Struct9BytesPackedMixed returnStruct9BytesPackedMixedCalculateResult() {
-  final resultPointer = calloc<Struct9BytesPackedMixed>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStruct9BytesPackedMixed_a0;
-  result.a1 = returnStruct9BytesPackedMixed_a1;
-
-  returnStruct9BytesPackedMixedResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Struct with mis-aligned member.
-/// Tests backfilling of CPU and FPU registers.
-Struct9BytesPackedMixed returnStruct9BytesPackedMixed(int a0, double a1) {
-  print("returnStruct9BytesPackedMixed(${a0}, ${a1})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct9BytesPackedMixed throwing on purpose!");
-  }
-
-  returnStruct9BytesPackedMixed_a0 = a0;
-  returnStruct9BytesPackedMixed_a1 = a1;
-
-  final result = returnStruct9BytesPackedMixedCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct9BytesPackedMixedAfterCallback() {
-  calloc.free(returnStruct9BytesPackedMixedResultPointer);
-
-  final result = returnStruct9BytesPackedMixedCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct9BytesPackedMixedResultPointer);
-}
-
-typedef ReturnUnion4BytesMixedType = Union4BytesMixed Function(Uint32);
-
-// Global variables to be able to test inputs after callback returned.
-int returnUnion4BytesMixed_a0 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Union4BytesMixed> returnUnion4BytesMixedResultPointer = nullptr;
-
-Union4BytesMixed returnUnion4BytesMixedCalculateResult() {
-  final resultPointer = calloc<Union4BytesMixed>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnUnion4BytesMixed_a0;
-
-  returnUnion4BytesMixedResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Returning a mixed integer/float union.
-Union4BytesMixed returnUnion4BytesMixed(int a0) {
-  print("returnUnion4BytesMixed(${a0})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnUnion4BytesMixed throwing on purpose!");
-  }
-
-  returnUnion4BytesMixed_a0 = a0;
-
-  final result = returnUnion4BytesMixedCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnUnion4BytesMixedAfterCallback() {
-  calloc.free(returnUnion4BytesMixedResultPointer);
-
-  final result = returnUnion4BytesMixedCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnUnion4BytesMixedResultPointer);
-}
-
-typedef ReturnUnion8BytesNestedFloatType = Union8BytesNestedFloat Function(
-    Double);
-
-// Global variables to be able to test inputs after callback returned.
-double returnUnion8BytesNestedFloat_a0 = 0.0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Union8BytesNestedFloat> returnUnion8BytesNestedFloatResultPointer =
-    nullptr;
-
-Union8BytesNestedFloat returnUnion8BytesNestedFloatCalculateResult() {
-  final resultPointer = calloc<Union8BytesNestedFloat>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnUnion8BytesNestedFloat_a0;
-
-  returnUnion8BytesNestedFloatResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Returning a floating point only union.
-Union8BytesNestedFloat returnUnion8BytesNestedFloat(double a0) {
-  print("returnUnion8BytesNestedFloat(${a0})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnUnion8BytesNestedFloat throwing on purpose!");
-  }
-
-  returnUnion8BytesNestedFloat_a0 = a0;
-
-  final result = returnUnion8BytesNestedFloatCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnUnion8BytesNestedFloatAfterCallback() {
-  calloc.free(returnUnion8BytesNestedFloatResultPointer);
-
-  final result = returnUnion8BytesNestedFloatCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnUnion8BytesNestedFloatResultPointer);
-}
-
-typedef ReturnUnion9BytesNestedIntType = Union9BytesNestedInt Function(
-    Struct8BytesInt);
-
-// Global variables to be able to test inputs after callback returned.
-Struct8BytesInt returnUnion9BytesNestedInt_a0 =
-    Pointer<Struct8BytesInt>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Union9BytesNestedInt> returnUnion9BytesNestedIntResultPointer = nullptr;
-
-Union9BytesNestedInt returnUnion9BytesNestedIntCalculateResult() {
-  final resultPointer = calloc<Union9BytesNestedInt>();
-  final result = resultPointer.ref;
-
-  result.a0.a0 = returnUnion9BytesNestedInt_a0.a0;
-  result.a0.a1 = returnUnion9BytesNestedInt_a0.a1;
-  result.a0.a2 = returnUnion9BytesNestedInt_a0.a2;
-
-  returnUnion9BytesNestedIntResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Returning a mixed-size union.
-Union9BytesNestedInt returnUnion9BytesNestedInt(Struct8BytesInt a0) {
-  print("returnUnion9BytesNestedInt(${a0})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnUnion9BytesNestedInt throwing on purpose!");
-  }
-
-  returnUnion9BytesNestedInt_a0 = a0;
-
-  final result = returnUnion9BytesNestedIntCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnUnion9BytesNestedIntAfterCallback() {
-  calloc.free(returnUnion9BytesNestedIntResultPointer);
-
-  final result = returnUnion9BytesNestedIntCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnUnion9BytesNestedIntResultPointer);
-}
-
-typedef ReturnUnion16BytesNestedFloatType = Union16BytesNestedFloat Function(
-    Struct8BytesHomogeneousFloat);
-
-// Global variables to be able to test inputs after callback returned.
-Struct8BytesHomogeneousFloat returnUnion16BytesNestedFloat_a0 =
-    Pointer<Struct8BytesHomogeneousFloat>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Union16BytesNestedFloat> returnUnion16BytesNestedFloatResultPointer =
-    nullptr;
-
-Union16BytesNestedFloat returnUnion16BytesNestedFloatCalculateResult() {
-  final resultPointer = calloc<Union16BytesNestedFloat>();
-  final result = resultPointer.ref;
-
-  result.a0.a0 = returnUnion16BytesNestedFloat_a0.a0;
-  result.a0.a1 = returnUnion16BytesNestedFloat_a0.a1;
-
-  returnUnion16BytesNestedFloatResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Returning union with homogenous floats.
-Union16BytesNestedFloat returnUnion16BytesNestedFloat(
-    Struct8BytesHomogeneousFloat a0) {
-  print("returnUnion16BytesNestedFloat(${a0})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnUnion16BytesNestedFloat throwing on purpose!");
-  }
-
-  returnUnion16BytesNestedFloat_a0 = a0;
-
-  final result = returnUnion16BytesNestedFloatCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnUnion16BytesNestedFloatAfterCallback() {
-  calloc.free(returnUnion16BytesNestedFloatResultPointer);
-
-  final result = returnUnion16BytesNestedFloatCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnUnion16BytesNestedFloatResultPointer);
-}
-
-typedef ReturnStructArgumentStruct1ByteIntType = Struct1ByteInt Function(
-    Struct1ByteInt);
-
-// Global variables to be able to test inputs after callback returned.
-Struct1ByteInt returnStructArgumentStruct1ByteInt_a0 =
-    Pointer<Struct1ByteInt>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-Struct1ByteInt returnStructArgumentStruct1ByteIntResult =
-    Pointer<Struct1ByteInt>.fromAddress(0).ref;
-
-Struct1ByteInt returnStructArgumentStruct1ByteIntCalculateResult() {
-  Struct1ByteInt result = returnStructArgumentStruct1ByteInt_a0;
-
-  returnStructArgumentStruct1ByteIntResult = result;
-
-  return result;
-}
-
-/// Test that a struct passed in as argument can be returned.
-/// Especially for ffi callbacks.
-/// Struct is passed in int registers in most ABIs.
-Struct1ByteInt returnStructArgumentStruct1ByteInt(Struct1ByteInt a0) {
-  print("returnStructArgumentStruct1ByteInt(${a0})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStructArgumentStruct1ByteInt throwing on purpose!");
-  }
-
-  returnStructArgumentStruct1ByteInt_a0 = a0;
-
-  final result = returnStructArgumentStruct1ByteIntCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStructArgumentStruct1ByteIntAfterCallback() {
-  final result = returnStructArgumentStruct1ByteIntCalculateResult();
-
-  print("after callback result = $result");
-}
-
-typedef ReturnStructArgumentInt32x8Struct1ByteIntType = Struct1ByteInt Function(
-    Int32, Int32, Int32, Int32, Int32, Int32, Int32, Int32, Struct1ByteInt);
-
-// Global variables to be able to test inputs after callback returned.
-int returnStructArgumentInt32x8Struct1ByteInt_a0 = 0;
-int returnStructArgumentInt32x8Struct1ByteInt_a1 = 0;
-int returnStructArgumentInt32x8Struct1ByteInt_a2 = 0;
-int returnStructArgumentInt32x8Struct1ByteInt_a3 = 0;
-int returnStructArgumentInt32x8Struct1ByteInt_a4 = 0;
-int returnStructArgumentInt32x8Struct1ByteInt_a5 = 0;
-int returnStructArgumentInt32x8Struct1ByteInt_a6 = 0;
-int returnStructArgumentInt32x8Struct1ByteInt_a7 = 0;
-Struct1ByteInt returnStructArgumentInt32x8Struct1ByteInt_a8 =
-    Pointer<Struct1ByteInt>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-Struct1ByteInt returnStructArgumentInt32x8Struct1ByteIntResult =
-    Pointer<Struct1ByteInt>.fromAddress(0).ref;
-
-Struct1ByteInt returnStructArgumentInt32x8Struct1ByteIntCalculateResult() {
-  Struct1ByteInt result = returnStructArgumentInt32x8Struct1ByteInt_a8;
-
-  returnStructArgumentInt32x8Struct1ByteIntResult = result;
-
-  return result;
-}
-
-/// Test that a struct passed in as argument can be returned.
-/// Especially for ffi callbacks.
-/// Struct is passed on stack on all ABIs.
-Struct1ByteInt returnStructArgumentInt32x8Struct1ByteInt(int a0, int a1, int a2,
-    int a3, int a4, int a5, int a6, int a7, Struct1ByteInt a8) {
-  print(
-      "returnStructArgumentInt32x8Struct1ByteInt(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "ReturnStructArgumentInt32x8Struct1ByteInt throwing on purpose!");
-  }
-
-  returnStructArgumentInt32x8Struct1ByteInt_a0 = a0;
-  returnStructArgumentInt32x8Struct1ByteInt_a1 = a1;
-  returnStructArgumentInt32x8Struct1ByteInt_a2 = a2;
-  returnStructArgumentInt32x8Struct1ByteInt_a3 = a3;
-  returnStructArgumentInt32x8Struct1ByteInt_a4 = a4;
-  returnStructArgumentInt32x8Struct1ByteInt_a5 = a5;
-  returnStructArgumentInt32x8Struct1ByteInt_a6 = a6;
-  returnStructArgumentInt32x8Struct1ByteInt_a7 = a7;
-  returnStructArgumentInt32x8Struct1ByteInt_a8 = a8;
-
-  final result = returnStructArgumentInt32x8Struct1ByteIntCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStructArgumentInt32x8Struct1ByteIntAfterCallback() {
-  final result = returnStructArgumentInt32x8Struct1ByteIntCalculateResult();
-
-  print("after callback result = $result");
-}
-
-typedef ReturnStructArgumentStruct8BytesHomogeneousFloatType
-    = Struct8BytesHomogeneousFloat Function(Struct8BytesHomogeneousFloat);
-
-// Global variables to be able to test inputs after callback returned.
-Struct8BytesHomogeneousFloat
-    returnStructArgumentStruct8BytesHomogeneousFloat_a0 =
-    Pointer<Struct8BytesHomogeneousFloat>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-Struct8BytesHomogeneousFloat
-    returnStructArgumentStruct8BytesHomogeneousFloatResult =
-    Pointer<Struct8BytesHomogeneousFloat>.fromAddress(0).ref;
-
-Struct8BytesHomogeneousFloat
-    returnStructArgumentStruct8BytesHomogeneousFloatCalculateResult() {
-  Struct8BytesHomogeneousFloat result =
-      returnStructArgumentStruct8BytesHomogeneousFloat_a0;
-
-  returnStructArgumentStruct8BytesHomogeneousFloatResult = result;
-
-  return result;
-}
-
-/// Test that a struct passed in as argument can be returned.
-/// Especially for ffi callbacks.
-/// Struct is passed in float registers in most ABIs.
-Struct8BytesHomogeneousFloat returnStructArgumentStruct8BytesHomogeneousFloat(
-    Struct8BytesHomogeneousFloat a0) {
-  print("returnStructArgumentStruct8BytesHomogeneousFloat(${a0})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "ReturnStructArgumentStruct8BytesHomogeneousFloat throwing on purpose!");
-  }
-
-  returnStructArgumentStruct8BytesHomogeneousFloat_a0 = a0;
-
-  final result =
-      returnStructArgumentStruct8BytesHomogeneousFloatCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStructArgumentStruct8BytesHomogeneousFloatAfterCallback() {
-  final result =
-      returnStructArgumentStruct8BytesHomogeneousFloatCalculateResult();
-
-  print("after callback result = $result");
-}
-
-typedef ReturnStructArgumentStruct20BytesHomogeneousInt32Type
-    = Struct20BytesHomogeneousInt32 Function(Struct20BytesHomogeneousInt32);
-
-// Global variables to be able to test inputs after callback returned.
-Struct20BytesHomogeneousInt32
-    returnStructArgumentStruct20BytesHomogeneousInt32_a0 =
-    Pointer<Struct20BytesHomogeneousInt32>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-Struct20BytesHomogeneousInt32
-    returnStructArgumentStruct20BytesHomogeneousInt32Result =
-    Pointer<Struct20BytesHomogeneousInt32>.fromAddress(0).ref;
-
-Struct20BytesHomogeneousInt32
-    returnStructArgumentStruct20BytesHomogeneousInt32CalculateResult() {
-  Struct20BytesHomogeneousInt32 result =
-      returnStructArgumentStruct20BytesHomogeneousInt32_a0;
-
-  returnStructArgumentStruct20BytesHomogeneousInt32Result = result;
-
-  return result;
-}
-
-/// On arm64, both argument and return value are passed in by pointer.
-Struct20BytesHomogeneousInt32 returnStructArgumentStruct20BytesHomogeneousInt32(
-    Struct20BytesHomogeneousInt32 a0) {
-  print("returnStructArgumentStruct20BytesHomogeneousInt32(${a0})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "ReturnStructArgumentStruct20BytesHomogeneousInt32 throwing on purpose!");
-  }
-
-  returnStructArgumentStruct20BytesHomogeneousInt32_a0 = a0;
-
-  final result =
-      returnStructArgumentStruct20BytesHomogeneousInt32CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStructArgumentStruct20BytesHomogeneousInt32AfterCallback() {
-  final result =
-      returnStructArgumentStruct20BytesHomogeneousInt32CalculateResult();
-
-  print("after callback result = $result");
-}
-
-typedef ReturnStructArgumentInt32x8Struct20BytesHomogeneouType
-    = Struct20BytesHomogeneousInt32 Function(Int32, Int32, Int32, Int32, Int32,
-        Int32, Int32, Int32, Struct20BytesHomogeneousInt32);
-
-// Global variables to be able to test inputs after callback returned.
-int returnStructArgumentInt32x8Struct20BytesHomogeneou_a0 = 0;
-int returnStructArgumentInt32x8Struct20BytesHomogeneou_a1 = 0;
-int returnStructArgumentInt32x8Struct20BytesHomogeneou_a2 = 0;
-int returnStructArgumentInt32x8Struct20BytesHomogeneou_a3 = 0;
-int returnStructArgumentInt32x8Struct20BytesHomogeneou_a4 = 0;
-int returnStructArgumentInt32x8Struct20BytesHomogeneou_a5 = 0;
-int returnStructArgumentInt32x8Struct20BytesHomogeneou_a6 = 0;
-int returnStructArgumentInt32x8Struct20BytesHomogeneou_a7 = 0;
-Struct20BytesHomogeneousInt32
-    returnStructArgumentInt32x8Struct20BytesHomogeneou_a8 =
-    Pointer<Struct20BytesHomogeneousInt32>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-Struct20BytesHomogeneousInt32
-    returnStructArgumentInt32x8Struct20BytesHomogeneouResult =
-    Pointer<Struct20BytesHomogeneousInt32>.fromAddress(0).ref;
-
-Struct20BytesHomogeneousInt32
-    returnStructArgumentInt32x8Struct20BytesHomogeneouCalculateResult() {
-  Struct20BytesHomogeneousInt32 result =
-      returnStructArgumentInt32x8Struct20BytesHomogeneou_a8;
-
-  returnStructArgumentInt32x8Struct20BytesHomogeneouResult = result;
-
-  return result;
-}
-
-/// On arm64, both argument and return value are passed in by pointer.
-/// Ints exhaust registers, so that pointer is passed on stack.
-Struct20BytesHomogeneousInt32
-    returnStructArgumentInt32x8Struct20BytesHomogeneou(
-        int a0,
-        int a1,
-        int a2,
-        int a3,
-        int a4,
-        int a5,
-        int a6,
-        int a7,
-        Struct20BytesHomogeneousInt32 a8) {
-  print(
-      "returnStructArgumentInt32x8Struct20BytesHomogeneou(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "ReturnStructArgumentInt32x8Struct20BytesHomogeneou throwing on purpose!");
-  }
-
-  returnStructArgumentInt32x8Struct20BytesHomogeneou_a0 = a0;
-  returnStructArgumentInt32x8Struct20BytesHomogeneou_a1 = a1;
-  returnStructArgumentInt32x8Struct20BytesHomogeneou_a2 = a2;
-  returnStructArgumentInt32x8Struct20BytesHomogeneou_a3 = a3;
-  returnStructArgumentInt32x8Struct20BytesHomogeneou_a4 = a4;
-  returnStructArgumentInt32x8Struct20BytesHomogeneou_a5 = a5;
-  returnStructArgumentInt32x8Struct20BytesHomogeneou_a6 = a6;
-  returnStructArgumentInt32x8Struct20BytesHomogeneou_a7 = a7;
-  returnStructArgumentInt32x8Struct20BytesHomogeneou_a8 = a8;
-
-  final result =
-      returnStructArgumentInt32x8Struct20BytesHomogeneouCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStructArgumentInt32x8Struct20BytesHomogeneouAfterCallback() {
-  final result =
-      returnStructArgumentInt32x8Struct20BytesHomogeneouCalculateResult();
-
-  print("after callback result = $result");
-}
-
-typedef ReturnStructArgumentStruct8BytesInlineArrayIntType
-    = Struct8BytesInlineArrayInt Function(Struct8BytesInlineArrayInt);
-
-// Global variables to be able to test inputs after callback returned.
-Struct8BytesInlineArrayInt returnStructArgumentStruct8BytesInlineArrayInt_a0 =
-    Pointer<Struct8BytesInlineArrayInt>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-Struct8BytesInlineArrayInt
-    returnStructArgumentStruct8BytesInlineArrayIntResult =
-    Pointer<Struct8BytesInlineArrayInt>.fromAddress(0).ref;
-
-Struct8BytesInlineArrayInt
-    returnStructArgumentStruct8BytesInlineArrayIntCalculateResult() {
-  Struct8BytesInlineArrayInt result =
-      returnStructArgumentStruct8BytesInlineArrayInt_a0;
-
-  returnStructArgumentStruct8BytesInlineArrayIntResult = result;
-
-  return result;
-}
-
-/// Test returning struct with inline array.
-Struct8BytesInlineArrayInt returnStructArgumentStruct8BytesInlineArrayInt(
-    Struct8BytesInlineArrayInt a0) {
-  print("returnStructArgumentStruct8BytesInlineArrayInt(${a0})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0[0] == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0[0] == 42 || a0.a0[0] == 84) {
-    print("throwing!");
-    throw Exception(
-        "ReturnStructArgumentStruct8BytesInlineArrayInt throwing on purpose!");
-  }
-
-  returnStructArgumentStruct8BytesInlineArrayInt_a0 = a0;
-
-  final result =
-      returnStructArgumentStruct8BytesInlineArrayIntCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStructArgumentStruct8BytesInlineArrayIntAfterCallback() {
-  final result =
-      returnStructArgumentStruct8BytesInlineArrayIntCalculateResult();
-
-  print("after callback result = $result");
-}
-
-typedef ReturnStructArgumentStructStruct16BytesHomogeneousType
-    = StructStruct16BytesHomogeneousFloat2 Function(
-        StructStruct16BytesHomogeneousFloat2);
-
-// Global variables to be able to test inputs after callback returned.
-StructStruct16BytesHomogeneousFloat2
-    returnStructArgumentStructStruct16BytesHomogeneous_a0 =
-    Pointer<StructStruct16BytesHomogeneousFloat2>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-StructStruct16BytesHomogeneousFloat2
-    returnStructArgumentStructStruct16BytesHomogeneousResult =
-    Pointer<StructStruct16BytesHomogeneousFloat2>.fromAddress(0).ref;
-
-StructStruct16BytesHomogeneousFloat2
-    returnStructArgumentStructStruct16BytesHomogeneousCalculateResult() {
-  StructStruct16BytesHomogeneousFloat2 result =
-      returnStructArgumentStructStruct16BytesHomogeneous_a0;
-
-  returnStructArgumentStructStruct16BytesHomogeneousResult = result;
-
-  return result;
-}
-
-/// Return value in FPU registers on arm hardfp and arm64.
-StructStruct16BytesHomogeneousFloat2
-    returnStructArgumentStructStruct16BytesHomogeneous(
-        StructStruct16BytesHomogeneousFloat2 a0) {
-  print("returnStructArgumentStructStruct16BytesHomogeneous(${a0})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0.a0 == 42 || a0.a0.a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "ReturnStructArgumentStructStruct16BytesHomogeneous throwing on purpose!");
-  }
-
-  returnStructArgumentStructStruct16BytesHomogeneous_a0 = a0;
-
-  final result =
-      returnStructArgumentStructStruct16BytesHomogeneousCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStructArgumentStructStruct16BytesHomogeneousAfterCallback() {
-  final result =
-      returnStructArgumentStructStruct16BytesHomogeneousCalculateResult();
-
-  print("after callback result = $result");
-}
-
-typedef ReturnStructArgumentStructStruct32BytesHomogeneousType
-    = StructStruct32BytesHomogeneousDouble2 Function(
-        StructStruct32BytesHomogeneousDouble2);
-
-// Global variables to be able to test inputs after callback returned.
-StructStruct32BytesHomogeneousDouble2
-    returnStructArgumentStructStruct32BytesHomogeneous_a0 =
-    Pointer<StructStruct32BytesHomogeneousDouble2>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-StructStruct32BytesHomogeneousDouble2
-    returnStructArgumentStructStruct32BytesHomogeneousResult =
-    Pointer<StructStruct32BytesHomogeneousDouble2>.fromAddress(0).ref;
-
-StructStruct32BytesHomogeneousDouble2
-    returnStructArgumentStructStruct32BytesHomogeneousCalculateResult() {
-  StructStruct32BytesHomogeneousDouble2 result =
-      returnStructArgumentStructStruct32BytesHomogeneous_a0;
-
-  returnStructArgumentStructStruct32BytesHomogeneousResult = result;
-
-  return result;
-}
-
-/// Return value in FPU registers on arm64.
-StructStruct32BytesHomogeneousDouble2
-    returnStructArgumentStructStruct32BytesHomogeneous(
-        StructStruct32BytesHomogeneousDouble2 a0) {
-  print("returnStructArgumentStructStruct32BytesHomogeneous(${a0})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0.a0 == 42 || a0.a0.a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "ReturnStructArgumentStructStruct32BytesHomogeneous throwing on purpose!");
-  }
-
-  returnStructArgumentStructStruct32BytesHomogeneous_a0 = a0;
-
-  final result =
-      returnStructArgumentStructStruct32BytesHomogeneousCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStructArgumentStructStruct32BytesHomogeneousAfterCallback() {
-  final result =
-      returnStructArgumentStructStruct32BytesHomogeneousCalculateResult();
-
-  print("after callback result = $result");
-}
-
-typedef ReturnStructArgumentStructStruct16BytesMixed3Type
-    = StructStruct16BytesMixed3 Function(StructStruct16BytesMixed3);
-
-// Global variables to be able to test inputs after callback returned.
-StructStruct16BytesMixed3 returnStructArgumentStructStruct16BytesMixed3_a0 =
-    Pointer<StructStruct16BytesMixed3>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-StructStruct16BytesMixed3 returnStructArgumentStructStruct16BytesMixed3Result =
-    Pointer<StructStruct16BytesMixed3>.fromAddress(0).ref;
-
-StructStruct16BytesMixed3
-    returnStructArgumentStructStruct16BytesMixed3CalculateResult() {
-  StructStruct16BytesMixed3 result =
-      returnStructArgumentStructStruct16BytesMixed3_a0;
-
-  returnStructArgumentStructStruct16BytesMixed3Result = result;
-
-  return result;
-}
-
-/// On x64 Linux, return value is split over FP and int registers.
-StructStruct16BytesMixed3 returnStructArgumentStructStruct16BytesMixed3(
-    StructStruct16BytesMixed3 a0) {
-  print("returnStructArgumentStructStruct16BytesMixed3(${a0})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0.a0 == 42 || a0.a0.a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "ReturnStructArgumentStructStruct16BytesMixed3 throwing on purpose!");
-  }
-
-  returnStructArgumentStructStruct16BytesMixed3_a0 = a0;
-
-  final result = returnStructArgumentStructStruct16BytesMixed3CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStructArgumentStructStruct16BytesMixed3AfterCallback() {
-  final result = returnStructArgumentStructStruct16BytesMixed3CalculateResult();
-
-  print("after callback result = $result");
-}
-
-typedef ReturnStructAlignmentInt16Type = StructAlignmentInt16 Function(
-    Int8, Int16, Int8);
-
-// Global variables to be able to test inputs after callback returned.
-int returnStructAlignmentInt16_a0 = 0;
-int returnStructAlignmentInt16_a1 = 0;
-int returnStructAlignmentInt16_a2 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<StructAlignmentInt16> returnStructAlignmentInt16ResultPointer = nullptr;
-
-StructAlignmentInt16 returnStructAlignmentInt16CalculateResult() {
-  final resultPointer = calloc<StructAlignmentInt16>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStructAlignmentInt16_a0;
-  result.a1 = returnStructAlignmentInt16_a1;
-  result.a2 = returnStructAlignmentInt16_a2;
-
-  returnStructAlignmentInt16ResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Test alignment and padding of 16 byte int within struct.
-StructAlignmentInt16 returnStructAlignmentInt16(int a0, int a1, int a2) {
-  print("returnStructAlignmentInt16(${a0}, ${a1}, ${a2})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStructAlignmentInt16 throwing on purpose!");
-  }
-
-  returnStructAlignmentInt16_a0 = a0;
-  returnStructAlignmentInt16_a1 = a1;
-  returnStructAlignmentInt16_a2 = a2;
-
-  final result = returnStructAlignmentInt16CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStructAlignmentInt16AfterCallback() {
-  calloc.free(returnStructAlignmentInt16ResultPointer);
-
-  final result = returnStructAlignmentInt16CalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStructAlignmentInt16ResultPointer);
-}
-
-typedef ReturnStructAlignmentInt32Type = StructAlignmentInt32 Function(
-    Int8, Int32, Int8);
-
-// Global variables to be able to test inputs after callback returned.
-int returnStructAlignmentInt32_a0 = 0;
-int returnStructAlignmentInt32_a1 = 0;
-int returnStructAlignmentInt32_a2 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<StructAlignmentInt32> returnStructAlignmentInt32ResultPointer = nullptr;
-
-StructAlignmentInt32 returnStructAlignmentInt32CalculateResult() {
-  final resultPointer = calloc<StructAlignmentInt32>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStructAlignmentInt32_a0;
-  result.a1 = returnStructAlignmentInt32_a1;
-  result.a2 = returnStructAlignmentInt32_a2;
-
-  returnStructAlignmentInt32ResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Test alignment and padding of 32 byte int within struct.
-StructAlignmentInt32 returnStructAlignmentInt32(int a0, int a1, int a2) {
-  print("returnStructAlignmentInt32(${a0}, ${a1}, ${a2})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStructAlignmentInt32 throwing on purpose!");
-  }
-
-  returnStructAlignmentInt32_a0 = a0;
-  returnStructAlignmentInt32_a1 = a1;
-  returnStructAlignmentInt32_a2 = a2;
-
-  final result = returnStructAlignmentInt32CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStructAlignmentInt32AfterCallback() {
-  calloc.free(returnStructAlignmentInt32ResultPointer);
-
-  final result = returnStructAlignmentInt32CalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStructAlignmentInt32ResultPointer);
-}
-
-typedef ReturnStructAlignmentInt64Type = StructAlignmentInt64 Function(
-    Int8, Int64, Int8);
-
-// Global variables to be able to test inputs after callback returned.
-int returnStructAlignmentInt64_a0 = 0;
-int returnStructAlignmentInt64_a1 = 0;
-int returnStructAlignmentInt64_a2 = 0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<StructAlignmentInt64> returnStructAlignmentInt64ResultPointer = nullptr;
-
-StructAlignmentInt64 returnStructAlignmentInt64CalculateResult() {
-  final resultPointer = calloc<StructAlignmentInt64>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStructAlignmentInt64_a0;
-  result.a1 = returnStructAlignmentInt64_a1;
-  result.a2 = returnStructAlignmentInt64_a2;
-
-  returnStructAlignmentInt64ResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Test alignment and padding of 64 byte int within struct.
-StructAlignmentInt64 returnStructAlignmentInt64(int a0, int a1, int a2) {
-  print("returnStructAlignmentInt64(${a0}, ${a1}, ${a2})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStructAlignmentInt64 throwing on purpose!");
-  }
-
-  returnStructAlignmentInt64_a0 = a0;
-  returnStructAlignmentInt64_a1 = a1;
-  returnStructAlignmentInt64_a2 = a2;
-
-  final result = returnStructAlignmentInt64CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStructAlignmentInt64AfterCallback() {
-  calloc.free(returnStructAlignmentInt64ResultPointer);
-
-  final result = returnStructAlignmentInt64CalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStructAlignmentInt64ResultPointer);
-}
-
-typedef ReturnStruct8BytesNestedIntType = Struct8BytesNestedInt Function(
-    Struct4BytesHomogeneousInt16, Struct4BytesHomogeneousInt16);
-
-// Global variables to be able to test inputs after callback returned.
-Struct4BytesHomogeneousInt16 returnStruct8BytesNestedInt_a0 =
-    Pointer<Struct4BytesHomogeneousInt16>.fromAddress(0).ref;
-Struct4BytesHomogeneousInt16 returnStruct8BytesNestedInt_a1 =
-    Pointer<Struct4BytesHomogeneousInt16>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct8BytesNestedInt> returnStruct8BytesNestedIntResultPointer =
-    nullptr;
-
-Struct8BytesNestedInt returnStruct8BytesNestedIntCalculateResult() {
-  final resultPointer = calloc<Struct8BytesNestedInt>();
-  final result = resultPointer.ref;
-
-  result.a0.a0 = returnStruct8BytesNestedInt_a0.a0;
-  result.a0.a1 = returnStruct8BytesNestedInt_a0.a1;
-  result.a1.a0 = returnStruct8BytesNestedInt_a1.a0;
-  result.a1.a1 = returnStruct8BytesNestedInt_a1.a1;
-
-  returnStruct8BytesNestedIntResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Simple nested struct.
-Struct8BytesNestedInt returnStruct8BytesNestedInt(
-    Struct4BytesHomogeneousInt16 a0, Struct4BytesHomogeneousInt16 a1) {
-  print("returnStruct8BytesNestedInt(${a0}, ${a1})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct8BytesNestedInt throwing on purpose!");
-  }
-
-  returnStruct8BytesNestedInt_a0 = a0;
-  returnStruct8BytesNestedInt_a1 = a1;
-
-  final result = returnStruct8BytesNestedIntCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct8BytesNestedIntAfterCallback() {
-  calloc.free(returnStruct8BytesNestedIntResultPointer);
-
-  final result = returnStruct8BytesNestedIntCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct8BytesNestedIntResultPointer);
-}
-
-typedef ReturnStruct8BytesNestedFloatType = Struct8BytesNestedFloat Function(
-    Struct4BytesFloat, Struct4BytesFloat);
-
-// Global variables to be able to test inputs after callback returned.
-Struct4BytesFloat returnStruct8BytesNestedFloat_a0 =
-    Pointer<Struct4BytesFloat>.fromAddress(0).ref;
-Struct4BytesFloat returnStruct8BytesNestedFloat_a1 =
-    Pointer<Struct4BytesFloat>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct8BytesNestedFloat> returnStruct8BytesNestedFloatResultPointer =
-    nullptr;
-
-Struct8BytesNestedFloat returnStruct8BytesNestedFloatCalculateResult() {
-  final resultPointer = calloc<Struct8BytesNestedFloat>();
-  final result = resultPointer.ref;
-
-  result.a0.a0 = returnStruct8BytesNestedFloat_a0.a0;
-  result.a1.a0 = returnStruct8BytesNestedFloat_a1.a0;
-
-  returnStruct8BytesNestedFloatResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Simple nested struct with floats.
-Struct8BytesNestedFloat returnStruct8BytesNestedFloat(
-    Struct4BytesFloat a0, Struct4BytesFloat a1) {
-  print("returnStruct8BytesNestedFloat(${a0}, ${a1})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct8BytesNestedFloat throwing on purpose!");
-  }
-
-  returnStruct8BytesNestedFloat_a0 = a0;
-  returnStruct8BytesNestedFloat_a1 = a1;
-
-  final result = returnStruct8BytesNestedFloatCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct8BytesNestedFloatAfterCallback() {
-  calloc.free(returnStruct8BytesNestedFloatResultPointer);
-
-  final result = returnStruct8BytesNestedFloatCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct8BytesNestedFloatResultPointer);
-}
-
-typedef ReturnStruct8BytesNestedFloat2Type = Struct8BytesNestedFloat2 Function(
-    Struct4BytesFloat, Float);
-
-// Global variables to be able to test inputs after callback returned.
-Struct4BytesFloat returnStruct8BytesNestedFloat2_a0 =
-    Pointer<Struct4BytesFloat>.fromAddress(0).ref;
-double returnStruct8BytesNestedFloat2_a1 = 0.0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct8BytesNestedFloat2> returnStruct8BytesNestedFloat2ResultPointer =
-    nullptr;
-
-Struct8BytesNestedFloat2 returnStruct8BytesNestedFloat2CalculateResult() {
-  final resultPointer = calloc<Struct8BytesNestedFloat2>();
-  final result = resultPointer.ref;
-
-  result.a0.a0 = returnStruct8BytesNestedFloat2_a0.a0;
-  result.a1 = returnStruct8BytesNestedFloat2_a1;
-
-  returnStruct8BytesNestedFloat2ResultPointer = resultPointer;
-
-  return result;
-}
-
-/// The nesting is irregular, testing homogenous float rules on arm and arm64,
-/// and the fpu register usage on x64.
-Struct8BytesNestedFloat2 returnStruct8BytesNestedFloat2(
-    Struct4BytesFloat a0, double a1) {
-  print("returnStruct8BytesNestedFloat2(${a0}, ${a1})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct8BytesNestedFloat2 throwing on purpose!");
-  }
-
-  returnStruct8BytesNestedFloat2_a0 = a0;
-  returnStruct8BytesNestedFloat2_a1 = a1;
-
-  final result = returnStruct8BytesNestedFloat2CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct8BytesNestedFloat2AfterCallback() {
-  calloc.free(returnStruct8BytesNestedFloat2ResultPointer);
-
-  final result = returnStruct8BytesNestedFloat2CalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct8BytesNestedFloat2ResultPointer);
-}
-
-typedef ReturnStruct8BytesNestedMixedType = Struct8BytesNestedMixed Function(
-    Struct4BytesHomogeneousInt16, Struct4BytesFloat);
-
-// Global variables to be able to test inputs after callback returned.
-Struct4BytesHomogeneousInt16 returnStruct8BytesNestedMixed_a0 =
-    Pointer<Struct4BytesHomogeneousInt16>.fromAddress(0).ref;
-Struct4BytesFloat returnStruct8BytesNestedMixed_a1 =
-    Pointer<Struct4BytesFloat>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct8BytesNestedMixed> returnStruct8BytesNestedMixedResultPointer =
-    nullptr;
-
-Struct8BytesNestedMixed returnStruct8BytesNestedMixedCalculateResult() {
-  final resultPointer = calloc<Struct8BytesNestedMixed>();
-  final result = resultPointer.ref;
-
-  result.a0.a0 = returnStruct8BytesNestedMixed_a0.a0;
-  result.a0.a1 = returnStruct8BytesNestedMixed_a0.a1;
-  result.a1.a0 = returnStruct8BytesNestedMixed_a1.a0;
-
-  returnStruct8BytesNestedMixedResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Simple nested struct with mixed members.
-Struct8BytesNestedMixed returnStruct8BytesNestedMixed(
-    Struct4BytesHomogeneousInt16 a0, Struct4BytesFloat a1) {
-  print("returnStruct8BytesNestedMixed(${a0}, ${a1})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct8BytesNestedMixed throwing on purpose!");
-  }
-
-  returnStruct8BytesNestedMixed_a0 = a0;
-  returnStruct8BytesNestedMixed_a1 = a1;
-
-  final result = returnStruct8BytesNestedMixedCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct8BytesNestedMixedAfterCallback() {
-  calloc.free(returnStruct8BytesNestedMixedResultPointer);
-
-  final result = returnStruct8BytesNestedMixedCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct8BytesNestedMixedResultPointer);
-}
-
-typedef ReturnStruct16BytesNestedIntType = Struct16BytesNestedInt Function(
-    Struct8BytesNestedInt, Struct8BytesNestedInt);
-
-// Global variables to be able to test inputs after callback returned.
-Struct8BytesNestedInt returnStruct16BytesNestedInt_a0 =
-    Pointer<Struct8BytesNestedInt>.fromAddress(0).ref;
-Struct8BytesNestedInt returnStruct16BytesNestedInt_a1 =
-    Pointer<Struct8BytesNestedInt>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct16BytesNestedInt> returnStruct16BytesNestedIntResultPointer =
-    nullptr;
-
-Struct16BytesNestedInt returnStruct16BytesNestedIntCalculateResult() {
-  final resultPointer = calloc<Struct16BytesNestedInt>();
-  final result = resultPointer.ref;
-
-  result.a0.a0.a0 = returnStruct16BytesNestedInt_a0.a0.a0;
-  result.a0.a0.a1 = returnStruct16BytesNestedInt_a0.a0.a1;
-  result.a0.a1.a0 = returnStruct16BytesNestedInt_a0.a1.a0;
-  result.a0.a1.a1 = returnStruct16BytesNestedInt_a0.a1.a1;
-  result.a1.a0.a0 = returnStruct16BytesNestedInt_a1.a0.a0;
-  result.a1.a0.a1 = returnStruct16BytesNestedInt_a1.a0.a1;
-  result.a1.a1.a0 = returnStruct16BytesNestedInt_a1.a1.a0;
-  result.a1.a1.a1 = returnStruct16BytesNestedInt_a1.a1.a1;
-
-  returnStruct16BytesNestedIntResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Deeper nested struct to test recursive member access.
-Struct16BytesNestedInt returnStruct16BytesNestedInt(
-    Struct8BytesNestedInt a0, Struct8BytesNestedInt a1) {
-  print("returnStruct16BytesNestedInt(${a0}, ${a1})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0.a0 == 42 || a0.a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct16BytesNestedInt throwing on purpose!");
-  }
-
-  returnStruct16BytesNestedInt_a0 = a0;
-  returnStruct16BytesNestedInt_a1 = a1;
-
-  final result = returnStruct16BytesNestedIntCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct16BytesNestedIntAfterCallback() {
-  calloc.free(returnStruct16BytesNestedIntResultPointer);
-
-  final result = returnStruct16BytesNestedIntCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct16BytesNestedIntResultPointer);
-}
-
-typedef ReturnStruct32BytesNestedIntType = Struct32BytesNestedInt Function(
-    Struct16BytesNestedInt, Struct16BytesNestedInt);
-
-// Global variables to be able to test inputs after callback returned.
-Struct16BytesNestedInt returnStruct32BytesNestedInt_a0 =
-    Pointer<Struct16BytesNestedInt>.fromAddress(0).ref;
-Struct16BytesNestedInt returnStruct32BytesNestedInt_a1 =
-    Pointer<Struct16BytesNestedInt>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<Struct32BytesNestedInt> returnStruct32BytesNestedIntResultPointer =
-    nullptr;
-
-Struct32BytesNestedInt returnStruct32BytesNestedIntCalculateResult() {
-  final resultPointer = calloc<Struct32BytesNestedInt>();
-  final result = resultPointer.ref;
-
-  result.a0.a0.a0.a0 = returnStruct32BytesNestedInt_a0.a0.a0.a0;
-  result.a0.a0.a0.a1 = returnStruct32BytesNestedInt_a0.a0.a0.a1;
-  result.a0.a0.a1.a0 = returnStruct32BytesNestedInt_a0.a0.a1.a0;
-  result.a0.a0.a1.a1 = returnStruct32BytesNestedInt_a0.a0.a1.a1;
-  result.a0.a1.a0.a0 = returnStruct32BytesNestedInt_a0.a1.a0.a0;
-  result.a0.a1.a0.a1 = returnStruct32BytesNestedInt_a0.a1.a0.a1;
-  result.a0.a1.a1.a0 = returnStruct32BytesNestedInt_a0.a1.a1.a0;
-  result.a0.a1.a1.a1 = returnStruct32BytesNestedInt_a0.a1.a1.a1;
-  result.a1.a0.a0.a0 = returnStruct32BytesNestedInt_a1.a0.a0.a0;
-  result.a1.a0.a0.a1 = returnStruct32BytesNestedInt_a1.a0.a0.a1;
-  result.a1.a0.a1.a0 = returnStruct32BytesNestedInt_a1.a0.a1.a0;
-  result.a1.a0.a1.a1 = returnStruct32BytesNestedInt_a1.a0.a1.a1;
-  result.a1.a1.a0.a0 = returnStruct32BytesNestedInt_a1.a1.a0.a0;
-  result.a1.a1.a0.a1 = returnStruct32BytesNestedInt_a1.a1.a0.a1;
-  result.a1.a1.a1.a0 = returnStruct32BytesNestedInt_a1.a1.a1.a0;
-  result.a1.a1.a1.a1 = returnStruct32BytesNestedInt_a1.a1.a1.a1;
-
-  returnStruct32BytesNestedIntResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Even deeper nested struct to test recursive member access.
-Struct32BytesNestedInt returnStruct32BytesNestedInt(
-    Struct16BytesNestedInt a0, Struct16BytesNestedInt a1) {
-  print("returnStruct32BytesNestedInt(${a0}, ${a1})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0.a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0.a0.a0 == 42 || a0.a0.a0.a0 == 84) {
-    print("throwing!");
-    throw Exception("ReturnStruct32BytesNestedInt throwing on purpose!");
-  }
-
-  returnStruct32BytesNestedInt_a0 = a0;
-  returnStruct32BytesNestedInt_a1 = a1;
-
-  final result = returnStruct32BytesNestedIntCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStruct32BytesNestedIntAfterCallback() {
-  calloc.free(returnStruct32BytesNestedIntResultPointer);
-
-  final result = returnStruct32BytesNestedIntCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStruct32BytesNestedIntResultPointer);
-}
-
-typedef ReturnStructNestedIntStructAlignmentInt16Type
-    = StructNestedIntStructAlignmentInt16 Function(
-        StructAlignmentInt16, StructAlignmentInt16);
-
-// Global variables to be able to test inputs after callback returned.
-StructAlignmentInt16 returnStructNestedIntStructAlignmentInt16_a0 =
-    Pointer<StructAlignmentInt16>.fromAddress(0).ref;
-StructAlignmentInt16 returnStructNestedIntStructAlignmentInt16_a1 =
-    Pointer<StructAlignmentInt16>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<StructNestedIntStructAlignmentInt16>
-    returnStructNestedIntStructAlignmentInt16ResultPointer = nullptr;
-
-StructNestedIntStructAlignmentInt16
-    returnStructNestedIntStructAlignmentInt16CalculateResult() {
-  final resultPointer = calloc<StructNestedIntStructAlignmentInt16>();
-  final result = resultPointer.ref;
-
-  result.a0.a0 = returnStructNestedIntStructAlignmentInt16_a0.a0;
-  result.a0.a1 = returnStructNestedIntStructAlignmentInt16_a0.a1;
-  result.a0.a2 = returnStructNestedIntStructAlignmentInt16_a0.a2;
-  result.a1.a0 = returnStructNestedIntStructAlignmentInt16_a1.a0;
-  result.a1.a1 = returnStructNestedIntStructAlignmentInt16_a1.a1;
-  result.a1.a2 = returnStructNestedIntStructAlignmentInt16_a1.a2;
-
-  returnStructNestedIntStructAlignmentInt16ResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Test alignment and padding of nested struct with 16 byte int.
-StructNestedIntStructAlignmentInt16 returnStructNestedIntStructAlignmentInt16(
-    StructAlignmentInt16 a0, StructAlignmentInt16 a1) {
-  print("returnStructNestedIntStructAlignmentInt16(${a0}, ${a1})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "ReturnStructNestedIntStructAlignmentInt16 throwing on purpose!");
-  }
-
-  returnStructNestedIntStructAlignmentInt16_a0 = a0;
-  returnStructNestedIntStructAlignmentInt16_a1 = a1;
-
-  final result = returnStructNestedIntStructAlignmentInt16CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStructNestedIntStructAlignmentInt16AfterCallback() {
-  calloc.free(returnStructNestedIntStructAlignmentInt16ResultPointer);
-
-  final result = returnStructNestedIntStructAlignmentInt16CalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStructNestedIntStructAlignmentInt16ResultPointer);
-}
-
-typedef ReturnStructNestedIntStructAlignmentInt32Type
-    = StructNestedIntStructAlignmentInt32 Function(
-        StructAlignmentInt32, StructAlignmentInt32);
-
-// Global variables to be able to test inputs after callback returned.
-StructAlignmentInt32 returnStructNestedIntStructAlignmentInt32_a0 =
-    Pointer<StructAlignmentInt32>.fromAddress(0).ref;
-StructAlignmentInt32 returnStructNestedIntStructAlignmentInt32_a1 =
-    Pointer<StructAlignmentInt32>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<StructNestedIntStructAlignmentInt32>
-    returnStructNestedIntStructAlignmentInt32ResultPointer = nullptr;
-
-StructNestedIntStructAlignmentInt32
-    returnStructNestedIntStructAlignmentInt32CalculateResult() {
-  final resultPointer = calloc<StructNestedIntStructAlignmentInt32>();
-  final result = resultPointer.ref;
-
-  result.a0.a0 = returnStructNestedIntStructAlignmentInt32_a0.a0;
-  result.a0.a1 = returnStructNestedIntStructAlignmentInt32_a0.a1;
-  result.a0.a2 = returnStructNestedIntStructAlignmentInt32_a0.a2;
-  result.a1.a0 = returnStructNestedIntStructAlignmentInt32_a1.a0;
-  result.a1.a1 = returnStructNestedIntStructAlignmentInt32_a1.a1;
-  result.a1.a2 = returnStructNestedIntStructAlignmentInt32_a1.a2;
-
-  returnStructNestedIntStructAlignmentInt32ResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Test alignment and padding of nested struct with 32 byte int.
-StructNestedIntStructAlignmentInt32 returnStructNestedIntStructAlignmentInt32(
-    StructAlignmentInt32 a0, StructAlignmentInt32 a1) {
-  print("returnStructNestedIntStructAlignmentInt32(${a0}, ${a1})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "ReturnStructNestedIntStructAlignmentInt32 throwing on purpose!");
-  }
-
-  returnStructNestedIntStructAlignmentInt32_a0 = a0;
-  returnStructNestedIntStructAlignmentInt32_a1 = a1;
-
-  final result = returnStructNestedIntStructAlignmentInt32CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStructNestedIntStructAlignmentInt32AfterCallback() {
-  calloc.free(returnStructNestedIntStructAlignmentInt32ResultPointer);
-
-  final result = returnStructNestedIntStructAlignmentInt32CalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStructNestedIntStructAlignmentInt32ResultPointer);
-}
-
-typedef ReturnStructNestedIntStructAlignmentInt64Type
-    = StructNestedIntStructAlignmentInt64 Function(
-        StructAlignmentInt64, StructAlignmentInt64);
-
-// Global variables to be able to test inputs after callback returned.
-StructAlignmentInt64 returnStructNestedIntStructAlignmentInt64_a0 =
-    Pointer<StructAlignmentInt64>.fromAddress(0).ref;
-StructAlignmentInt64 returnStructNestedIntStructAlignmentInt64_a1 =
-    Pointer<StructAlignmentInt64>.fromAddress(0).ref;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<StructNestedIntStructAlignmentInt64>
-    returnStructNestedIntStructAlignmentInt64ResultPointer = nullptr;
-
-StructNestedIntStructAlignmentInt64
-    returnStructNestedIntStructAlignmentInt64CalculateResult() {
-  final resultPointer = calloc<StructNestedIntStructAlignmentInt64>();
-  final result = resultPointer.ref;
-
-  result.a0.a0 = returnStructNestedIntStructAlignmentInt64_a0.a0;
-  result.a0.a1 = returnStructNestedIntStructAlignmentInt64_a0.a1;
-  result.a0.a2 = returnStructNestedIntStructAlignmentInt64_a0.a2;
-  result.a1.a0 = returnStructNestedIntStructAlignmentInt64_a1.a0;
-  result.a1.a1 = returnStructNestedIntStructAlignmentInt64_a1.a1;
-  result.a1.a2 = returnStructNestedIntStructAlignmentInt64_a1.a2;
-
-  returnStructNestedIntStructAlignmentInt64ResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Test alignment and padding of nested struct with 64 byte int.
-StructNestedIntStructAlignmentInt64 returnStructNestedIntStructAlignmentInt64(
-    StructAlignmentInt64 a0, StructAlignmentInt64 a1) {
-  print("returnStructNestedIntStructAlignmentInt64(${a0}, ${a1})");
-
-  // In legacy mode, possibly return null.
-  if (a0.a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0.a0 == 42 || a0.a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "ReturnStructNestedIntStructAlignmentInt64 throwing on purpose!");
-  }
-
-  returnStructNestedIntStructAlignmentInt64_a0 = a0;
-  returnStructNestedIntStructAlignmentInt64_a1 = a1;
-
-  final result = returnStructNestedIntStructAlignmentInt64CalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStructNestedIntStructAlignmentInt64AfterCallback() {
-  calloc.free(returnStructNestedIntStructAlignmentInt64ResultPointer);
-
-  final result = returnStructNestedIntStructAlignmentInt64CalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStructNestedIntStructAlignmentInt64ResultPointer);
-}
-
-typedef ReturnStructNestedIrregularEvenBiggerType
-    = StructNestedIrregularEvenBigger Function(Uint64,
-        StructNestedIrregularBigger, StructNestedIrregularBigger, Double);
-
-// Global variables to be able to test inputs after callback returned.
-int returnStructNestedIrregularEvenBigger_a0 = 0;
-StructNestedIrregularBigger returnStructNestedIrregularEvenBigger_a1 =
-    Pointer<StructNestedIrregularBigger>.fromAddress(0).ref;
-StructNestedIrregularBigger returnStructNestedIrregularEvenBigger_a2 =
-    Pointer<StructNestedIrregularBigger>.fromAddress(0).ref;
-double returnStructNestedIrregularEvenBigger_a3 = 0.0;
-
-// Result variable also global, so we can delete it after the callback.
-Pointer<StructNestedIrregularEvenBigger>
-    returnStructNestedIrregularEvenBiggerResultPointer = nullptr;
-
-StructNestedIrregularEvenBigger
-    returnStructNestedIrregularEvenBiggerCalculateResult() {
-  final resultPointer = calloc<StructNestedIrregularEvenBigger>();
-  final result = resultPointer.ref;
-
-  result.a0 = returnStructNestedIrregularEvenBigger_a0;
-  result.a1.a0.a0 = returnStructNestedIrregularEvenBigger_a1.a0.a0;
-  result.a1.a0.a1.a0.a0 = returnStructNestedIrregularEvenBigger_a1.a0.a1.a0.a0;
-  result.a1.a0.a1.a0.a1 = returnStructNestedIrregularEvenBigger_a1.a0.a1.a0.a1;
-  result.a1.a0.a1.a1.a0 = returnStructNestedIrregularEvenBigger_a1.a0.a1.a1.a0;
-  result.a1.a0.a2 = returnStructNestedIrregularEvenBigger_a1.a0.a2;
-  result.a1.a0.a3.a0.a0 = returnStructNestedIrregularEvenBigger_a1.a0.a3.a0.a0;
-  result.a1.a0.a3.a1 = returnStructNestedIrregularEvenBigger_a1.a0.a3.a1;
-  result.a1.a0.a4 = returnStructNestedIrregularEvenBigger_a1.a0.a4;
-  result.a1.a0.a5.a0.a0 = returnStructNestedIrregularEvenBigger_a1.a0.a5.a0.a0;
-  result.a1.a0.a5.a1.a0 = returnStructNestedIrregularEvenBigger_a1.a0.a5.a1.a0;
-  result.a1.a0.a6 = returnStructNestedIrregularEvenBigger_a1.a0.a6;
-  result.a1.a1.a0.a0 = returnStructNestedIrregularEvenBigger_a1.a1.a0.a0;
-  result.a1.a1.a0.a1 = returnStructNestedIrregularEvenBigger_a1.a1.a0.a1;
-  result.a1.a1.a1.a0 = returnStructNestedIrregularEvenBigger_a1.a1.a1.a0;
-  result.a1.a2 = returnStructNestedIrregularEvenBigger_a1.a2;
-  result.a1.a3 = returnStructNestedIrregularEvenBigger_a1.a3;
-  result.a2.a0.a0 = returnStructNestedIrregularEvenBigger_a2.a0.a0;
-  result.a2.a0.a1.a0.a0 = returnStructNestedIrregularEvenBigger_a2.a0.a1.a0.a0;
-  result.a2.a0.a1.a0.a1 = returnStructNestedIrregularEvenBigger_a2.a0.a1.a0.a1;
-  result.a2.a0.a1.a1.a0 = returnStructNestedIrregularEvenBigger_a2.a0.a1.a1.a0;
-  result.a2.a0.a2 = returnStructNestedIrregularEvenBigger_a2.a0.a2;
-  result.a2.a0.a3.a0.a0 = returnStructNestedIrregularEvenBigger_a2.a0.a3.a0.a0;
-  result.a2.a0.a3.a1 = returnStructNestedIrregularEvenBigger_a2.a0.a3.a1;
-  result.a2.a0.a4 = returnStructNestedIrregularEvenBigger_a2.a0.a4;
-  result.a2.a0.a5.a0.a0 = returnStructNestedIrregularEvenBigger_a2.a0.a5.a0.a0;
-  result.a2.a0.a5.a1.a0 = returnStructNestedIrregularEvenBigger_a2.a0.a5.a1.a0;
-  result.a2.a0.a6 = returnStructNestedIrregularEvenBigger_a2.a0.a6;
-  result.a2.a1.a0.a0 = returnStructNestedIrregularEvenBigger_a2.a1.a0.a0;
-  result.a2.a1.a0.a1 = returnStructNestedIrregularEvenBigger_a2.a1.a0.a1;
-  result.a2.a1.a1.a0 = returnStructNestedIrregularEvenBigger_a2.a1.a1.a0;
-  result.a2.a2 = returnStructNestedIrregularEvenBigger_a2.a2;
-  result.a2.a3 = returnStructNestedIrregularEvenBigger_a2.a3;
-  result.a3 = returnStructNestedIrregularEvenBigger_a3;
-
-  returnStructNestedIrregularEvenBiggerResultPointer = resultPointer;
-
-  return result;
-}
-
-/// Return big irregular struct as smoke test.
-StructNestedIrregularEvenBigger returnStructNestedIrregularEvenBigger(int a0,
-    StructNestedIrregularBigger a1, StructNestedIrregularBigger a2, double a3) {
-  print("returnStructNestedIrregularEvenBigger(${a0}, ${a1}, ${a2}, ${a3})");
-
-  // In legacy mode, possibly return null.
-  if (a0 == 84) {
-    print("returning null!");
-    return null;
-  }
-
-  // In both nnbd and legacy mode, possibly throw.
-  if (a0 == 42 || a0 == 84) {
-    print("throwing!");
-    throw Exception(
-        "ReturnStructNestedIrregularEvenBigger throwing on purpose!");
-  }
-
-  returnStructNestedIrregularEvenBigger_a0 = a0;
-  returnStructNestedIrregularEvenBigger_a1 = a1;
-  returnStructNestedIrregularEvenBigger_a2 = a2;
-  returnStructNestedIrregularEvenBigger_a3 = a3;
-
-  final result = returnStructNestedIrregularEvenBiggerCalculateResult();
-
-  print("result = $result");
-
-  return result;
-}
-
-void returnStructNestedIrregularEvenBiggerAfterCallback() {
-  calloc.free(returnStructNestedIrregularEvenBiggerResultPointer);
-
-  final result = returnStructNestedIrregularEvenBiggerCalculateResult();
-
-  print("after callback result = $result");
-
-  calloc.free(returnStructNestedIrregularEvenBiggerResultPointer);
-}
diff --git a/tests/ffi_2/function_callbacks_structs_by_value_test.dart b/tests/ffi_2/function_callbacks_structs_by_value_test.dart
deleted file mode 100644
index 0392513ed93..00000000000
--- a/tests/ffi_2/function_callbacks_structs_by_value_test.dart
+++ /dev/null
@@ -1,143 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// SharedObjects=ffi_test_functions
-//
-// VMOptions=--deterministic --optimization-counter-threshold=90 --use-slow-path --stacktrace-every=100
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
-
-import 'dylib_utils.dart';
-
-// Reuse the struct classes.
-import 'function_structs_by_value_generated_compounds.dart';
-
-final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-
-void main() {
-  for (int i = 0; i < 100; i++) {
-    recursiveTest(10);
-    recursiveTest(11);
-    testCopyLogic();
-  }
-}
-
-void recursiveTest(int recursionCounter) {
-  final pointer = calloc<Struct20BytesHomogeneousInt32>();
-  final struct = pointer.ref;
-  struct.a0 = 1;
-  struct.a1 = 2;
-  struct.a2 = 3;
-  struct.a3 = 4;
-  struct.a4 = 5;
-  final result = dartPassStructRecursive(recursionCounter, struct);
-  Expect.equals(struct.a0 + recursionCounter * 2, result.a0);
-  Expect.equals(struct.a1, result.a1);
-  Expect.equals(struct.a2, result.a2);
-  Expect.equals(struct.a3, result.a3);
-  Expect.equals(struct.a4, result.a4);
-  calloc.free(pointer);
-}
-
-Struct20BytesHomogeneousInt32 dartPassStructRecursive(
-    int recursionCounter, Struct20BytesHomogeneousInt32 struct) {
-  print("callbackPassStructRecursive($recursionCounter, $struct)");
-  struct.a0++;
-  final structA0Saved = struct.a0;
-  if (recursionCounter <= 0) {
-    print("returning");
-    return struct;
-  }
-
-  final result =
-      cPassStructRecursive(recursionCounter - 1, struct, functionPointer);
-  result.a0++;
-
-  // Check struct.a0 is not modified by Dart->C call.
-  Expect.equals(structA0Saved, struct.a0);
-
-  // Check struct.a0 is not modified by C->Dart callback, if so struct.a4 == 0.
-  Expect.notEquals(0, struct.a4);
-
-  return result;
-}
-
-final functionPointer = Pointer.fromFunction<
-    Struct20BytesHomogeneousInt32 Function(
-        Int64, Struct20BytesHomogeneousInt32)>(dartPassStructRecursive);
-
-final cPassStructRecursive = ffiTestFunctions.lookupFunction<
-    Struct20BytesHomogeneousInt32 Function(Int64 recursionCounter,
-        Struct20BytesHomogeneousInt32 struct, Pointer callbackAddress),
-    Struct20BytesHomogeneousInt32 Function(int recursionCounter,
-        Struct20BytesHomogeneousInt32, Pointer)>("PassStructRecursive");
-
-Struct8BytesNestedInt typedDataBackedStruct =
-    Pointer<Struct8BytesNestedInt>.fromAddress(0).ref;
-bool typedDataBackedStructSet = false;
-void _receiveStructByValue(Struct8BytesNestedInt struct) {
-  typedDataBackedStruct = struct;
-  typedDataBackedStructSet = true;
-}
-
-final _receiveStructByValuePointer =
-    Pointer.fromFunction<Void Function(Struct8BytesNestedInt)>(
-        _receiveStructByValue);
-
-final _invokeReceiveStructByValue = ffiTestFunctions.lookupFunction<
-        Void Function(
-            Pointer<NativeFunction<Void Function(Struct8BytesNestedInt)>>),
-        void Function(
-            Pointer<NativeFunction<Void Function(Struct8BytesNestedInt)>>)>(
-    "CallbackWithStruct");
-
-void testCopyLogic() {
-  _invokeReceiveStructByValue(_receiveStructByValuePointer);
-  Expect.isTrue(typedDataBackedStructSet);
-
-  final pointer = calloc<Struct8BytesNestedInt>();
-  final pointerBackedStruct = pointer.ref;
-
-  void reset() {
-    pointerBackedStruct.a0.a0 = 1;
-    pointerBackedStruct.a0.a1 = 2;
-    pointerBackedStruct.a1.a0 = 3;
-    pointerBackedStruct.a1.a1 = 4;
-    typedDataBackedStruct.a0.a0 = 5;
-    typedDataBackedStruct.a0.a1 = 6;
-    typedDataBackedStruct.a1.a0 = 7;
-    typedDataBackedStruct.a1.a1 = 8;
-  }
-
-  // Pointer -> Pointer.
-  reset();
-  pointerBackedStruct.a1 = pointerBackedStruct.a0;
-  Expect.equals(1, pointerBackedStruct.a1.a0);
-  Expect.equals(2, pointerBackedStruct.a1.a1);
-
-  // Pointer -> TypedData.
-  reset();
-  typedDataBackedStruct.a1 = pointerBackedStruct.a0;
-  Expect.equals(1, typedDataBackedStruct.a1.a0);
-  Expect.equals(2, typedDataBackedStruct.a1.a1);
-
-  // TypedData -> Pointer.
-  reset();
-  pointerBackedStruct.a1 = typedDataBackedStruct.a0;
-  Expect.equals(5, pointerBackedStruct.a1.a0);
-  Expect.equals(6, pointerBackedStruct.a1.a1);
-
-  // TypedData -> TypedData.
-  reset();
-  typedDataBackedStruct.a1 = typedDataBackedStruct.a0;
-  Expect.equals(5, typedDataBackedStruct.a1.a0);
-  Expect.equals(6, typedDataBackedStruct.a1.a1);
-
-  calloc.free(pointer);
-}
diff --git a/tests/ffi_2/function_callbacks_test.dart b/tests/ffi_2/function_callbacks_test.dart
deleted file mode 100644
index c7d5aa82434..00000000000
--- a/tests/ffi_2/function_callbacks_test.dart
+++ /dev/null
@@ -1,236 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test program for testing dart:ffi function pointers with callbacks.
-//
-// VMOptions=--stacktrace-every=100
-// VMOptions=--write-protect-code --no-dual-map-code
-// VMOptions=--write-protect-code --no-dual-map-code --stacktrace-every=100
-// VMOptions=--use-slow-path
-// VMOptions=--use-slow-path --stacktrace-every=100
-// VMOptions=--use-slow-path --write-protect-code --no-dual-map-code
-// VMOptions=--use-slow-path --write-protect-code --no-dual-map-code --stacktrace-every=100
-// VMOptions=--dwarf_stack_traces --no-retain_function_objects --no-retain_code_objects
-// VMOptions=--test_il_serialization
-// SharedObjects=ffi_test_functions
-
-import 'dart:ffi';
-
-import 'callback_tests_utils.dart';
-
-typedef SimpleAdditionType = Int32 Function(Int32, Int32);
-int simpleAddition(int x, int y) {
-  print("simpleAddition($x, $y)");
-  return x + y;
-}
-
-class Foo {
-  static int simpleAddition(int x, int y) {
-    print("Foo.simpleAddition($x, $y)");
-    return x + y;
-  }
-}
-
-typedef IntComputationType = Int64 Function(Int8, Int16, Int32, Int64);
-int intComputation(int a, int b, int c, int d) {
-  print("intComputation($a, $b, $c, $d)");
-  return d - c + b - a;
-}
-
-typedef UintComputationType = Uint64 Function(Uint8, Uint16, Uint32, Uint64);
-int uintComputation(int a, int b, int c, int d) {
-  print("uintComputation($a, $b, $c, $d)");
-  return d - c + b - a;
-}
-
-typedef SimpleMultiplyType = Double Function(Double);
-double simpleMultiply(double x) {
-  print("simpleMultiply($x)");
-  return x * 1.337;
-}
-
-typedef SimpleMultiplyFloatType = Float Function(Float);
-double simpleMultiplyFloat(double x) {
-  print("simpleMultiplyFloat($x)");
-  return x * 1.337;
-}
-
-typedef ManyIntsType = IntPtr Function(IntPtr, IntPtr, IntPtr, IntPtr, IntPtr,
-    IntPtr, IntPtr, IntPtr, IntPtr, IntPtr);
-int manyInts(
-    int a, int b, int c, int d, int e, int f, int g, int h, int i, int j) {
-  print("manyInts($a, $b, $c, $d, $e, $f, $g, $h, $i, $j");
-  return a + b + c + d + e + f + g + h + i + j;
-}
-
-typedef ManyDoublesType = Double Function(Double, Double, Double, Double,
-    Double, Double, Double, Double, Double, Double);
-double manyDoubles(double a, double b, double c, double d, double e, double f,
-    double g, double h, double i, double j) {
-  print("manyDoubles($a, $b, $c, $d, $e, $f, $g, $h, $i, $j");
-  return a + b + c + d + e + f + g + h + i + j;
-}
-
-typedef ManyArgsType = Double Function(
-    IntPtr,
-    Float,
-    IntPtr,
-    Double,
-    IntPtr,
-    Float,
-    IntPtr,
-    Double,
-    IntPtr,
-    Float,
-    IntPtr,
-    Double,
-    IntPtr,
-    Float,
-    IntPtr,
-    Double,
-    IntPtr,
-    Float,
-    IntPtr,
-    Double);
-double manyArgs(
-    int _1,
-    double _2,
-    int _3,
-    double _4,
-    int _5,
-    double _6,
-    int _7,
-    double _8,
-    int _9,
-    double _10,
-    int _11,
-    double _12,
-    int _13,
-    double _14,
-    int _15,
-    double _16,
-    int _17,
-    double _18,
-    int _19,
-    double _20) {
-  print("manyArgs( $_1, $_2, $_3, $_4, $_5, $_6, $_7, $_8, $_9, $_10," +
-      "$_11, $_12, $_13, $_14, $_15, $_16, $_17, $_18, $_19, $_20)");
-  return _1 +
-      _2 +
-      _3 +
-      _4 +
-      _5 +
-      _6 +
-      _7 +
-      _8 +
-      _9 +
-      _10 +
-      _11 +
-      _12 +
-      _13 +
-      _14 +
-      _15 +
-      _16 +
-      _17 +
-      _18 +
-      _19 +
-      _20;
-}
-
-typedef StoreType = Pointer<Int64> Function(Pointer<Int64>);
-Pointer<Int64> store(Pointer<Int64> ptr) => ptr.elementAt(1)..value = 1337;
-
-typedef NullPointersType = Pointer<Int64> Function(Pointer<Int64>);
-Pointer<Int64> nullPointers(Pointer<Int64> ptr) => ptr.elementAt(1);
-
-typedef ReturnVoid = Void Function();
-void returnVoid() {}
-
-void throwException() {
-  throw "Exception.";
-}
-
-typedef ThrowExceptionInt = IntPtr Function();
-int throwExceptionInt() {
-  throw "Exception.";
-}
-
-typedef ThrowExceptionDouble = Double Function();
-double throwExceptionDouble() {
-  throw "Exception.";
-}
-
-typedef ThrowExceptionPointer = Pointer<Void> Function();
-Pointer<Void> throwExceptionPointer() {
-  throw "Exception.";
-}
-
-typedef TakeMaxUint8x10Type = IntPtr Function(
-    Uint8, Uint8, Uint8, Uint8, Uint8, Uint8, Uint8, Uint8, Uint8, Uint8);
-int takeMaxUint8x10(
-    int a, int b, int c, int d, int e, int f, int g, int h, int i, int j) {
-  print("takeMaxUint8x10($a, $b, $c, $d, $e, $f, $g, $h, $i, $j)");
-  return a == 0xff &&
-          b == 0xff &&
-          c == 0xff &&
-          d == 0xff &&
-          e == 0xff &&
-          f == 0xff &&
-          g == 0xff &&
-          h == 0xff &&
-          i == 0xff &&
-          j == 0xff
-      ? 1
-      : 0;
-}
-
-typedef ReturnMaxUint8Type = Uint8 Function();
-int returnMaxUint8() {
-  return 0xff;
-}
-
-int returnMaxUint8v2() {
-  return 0xabcff;
-}
-
-final testcases = [
-  CallbackTest("SimpleAddition",
-      Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 0)),
-  CallbackTest("SimpleAddition",
-      Pointer.fromFunction<SimpleAdditionType>(Foo.simpleAddition, 0)),
-  CallbackTest("IntComputation",
-      Pointer.fromFunction<IntComputationType>(intComputation, 0)),
-  CallbackTest("UintComputation",
-      Pointer.fromFunction<UintComputationType>(uintComputation, 0)),
-  CallbackTest("SimpleMultiply",
-      Pointer.fromFunction<SimpleMultiplyType>(simpleMultiply, 0.0)),
-  CallbackTest("SimpleMultiplyFloat",
-      Pointer.fromFunction<SimpleMultiplyFloatType>(simpleMultiplyFloat, 0.0)),
-  CallbackTest("ManyInts", Pointer.fromFunction<ManyIntsType>(manyInts, 0)),
-  CallbackTest(
-      "ManyDoubles", Pointer.fromFunction<ManyDoublesType>(manyDoubles, 0.0)),
-  CallbackTest("ManyArgs", Pointer.fromFunction<ManyArgsType>(manyArgs, 0.0)),
-  CallbackTest("Store", Pointer.fromFunction<StoreType>(store)),
-  CallbackTest(
-      "NullPointers", Pointer.fromFunction<NullPointersType>(nullPointers)),
-  CallbackTest("ReturnVoid", Pointer.fromFunction<ReturnVoid>(returnVoid)),
-  CallbackTest("ThrowExceptionDouble",
-      Pointer.fromFunction<ThrowExceptionDouble>(throwExceptionDouble, 42.0)),
-  CallbackTest("ThrowExceptionPointer",
-      Pointer.fromFunction<ThrowExceptionPointer>(throwExceptionPointer)),
-  CallbackTest("ThrowException",
-      Pointer.fromFunction<ThrowExceptionInt>(throwExceptionInt, 42)),
-  CallbackTest("TakeMaxUint8x10",
-      Pointer.fromFunction<TakeMaxUint8x10Type>(takeMaxUint8x10, 0)),
-  CallbackTest("ReturnMaxUint8",
-      Pointer.fromFunction<ReturnMaxUint8Type>(returnMaxUint8, 0)),
-  CallbackTest("ReturnMaxUint8",
-      Pointer.fromFunction<ReturnMaxUint8Type>(returnMaxUint8v2, 0)),
-];
-
-void main() {
-  testcases.forEach((t) => t.run());
-}
diff --git a/tests/ffi_2/function_callbacks_very_many_test.dart b/tests/ffi_2/function_callbacks_very_many_test.dart
deleted file mode 100644
index d9d25bf5657..00000000000
--- a/tests/ffi_2/function_callbacks_very_many_test.dart
+++ /dev/null
@@ -1,296 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test program for testing dart:ffi function pointers with callbacks.
-//
-// VMOptions=--deterministic --optimization-counter-threshold=90
-// VMOptions=--stacktrace-every=100
-// VMOptions=--write-protect-code --no-dual-map-code
-// VMOptions=--write-protect-code --no-dual-map-code --stacktrace-every=100
-// VMOptions=--use-slow-path
-// VMOptions=--use-slow-path --stacktrace-every=100
-// VMOptions=--use-slow-path --write-protect-code --no-dual-map-code
-// VMOptions=--use-slow-path --write-protect-code --no-dual-map-code --stacktrace-every=100
-// SharedObjects=ffi_test_functions
-
-import 'dart:ffi';
-
-import 'callback_tests_utils.dart';
-
-final testcases = [
-  CallbackTest("SumVeryManySmallInts",
-      Pointer.fromFunction<NativeVeryManyIntsOp>(sumVeryManySmallInts, 0)),
-  CallbackTest(
-      "SumVeryManyFloatsDoubles",
-      Pointer.fromFunction<NativeVeryManyFloatsDoublesOp>(
-          sumVeryManyDoubles, 0.0)),
-];
-
-void main() {
-  for (int i = 0; i < 100; ++i) {
-    testcases.forEach((t) => t.run());
-  }
-}
-
-int sumVeryManySmallInts(
-    int _1,
-    int _2,
-    int _3,
-    int _4,
-    int _5,
-    int _6,
-    int _7,
-    int _8,
-    int _9,
-    int _10,
-    int _11,
-    int _12,
-    int _13,
-    int _14,
-    int _15,
-    int _16,
-    int _17,
-    int _18,
-    int _19,
-    int _20,
-    int _21,
-    int _22,
-    int _23,
-    int _24,
-    int _25,
-    int _26,
-    int _27,
-    int _28,
-    int _29,
-    int _30,
-    int _31,
-    int _32,
-    int _33,
-    int _34,
-    int _35,
-    int _36,
-    int _37,
-    int _38,
-    int _39,
-    int _40) {
-  print("sumVeryManySmallInts(" +
-      "$_1, $_2, $_3, $_4, $_5, $_6, $_7, $_8, $_9, $_10, " +
-      "$_11, $_12, $_13, $_14, $_15, $_16, $_17, $_18, $_19, $_20, " +
-      "$_21, $_22, $_23, $_24, $_25, $_26, $_27, $_28, $_29, $_30, " +
-      "$_31, $_32, $_33, $_34, $_35, $_36, $_37, $_38, $_39, $_40)");
-  return _1 +
-      _2 +
-      _3 +
-      _4 +
-      _5 +
-      _6 +
-      _7 +
-      _8 +
-      _9 +
-      _10 +
-      _11 +
-      _12 +
-      _13 +
-      _14 +
-      _15 +
-      _16 +
-      _17 +
-      _18 +
-      _19 +
-      _20 +
-      _21 +
-      _22 +
-      _23 +
-      _24 +
-      _25 +
-      _26 +
-      _27 +
-      _28 +
-      _29 +
-      _30 +
-      _31 +
-      _32 +
-      _33 +
-      _34 +
-      _35 +
-      _36 +
-      _37 +
-      _38 +
-      _39 +
-      _40;
-}
-
-double sumVeryManyDoubles(
-    double _1,
-    double _2,
-    double _3,
-    double _4,
-    double _5,
-    double _6,
-    double _7,
-    double _8,
-    double _9,
-    double _10,
-    double _11,
-    double _12,
-    double _13,
-    double _14,
-    double _15,
-    double _16,
-    double _17,
-    double _18,
-    double _19,
-    double _20,
-    double _21,
-    double _22,
-    double _23,
-    double _24,
-    double _25,
-    double _26,
-    double _27,
-    double _28,
-    double _29,
-    double _30,
-    double _31,
-    double _32,
-    double _33,
-    double _34,
-    double _35,
-    double _36,
-    double _37,
-    double _38,
-    double _39,
-    double _40) {
-  print("sumVeryManyDoubles(" +
-      "$_1, $_2, $_3, $_4, $_5, $_6, $_7, $_8, $_9, $_10, " +
-      "$_11, $_12, $_13, $_14, $_15, $_16, $_17, $_18, $_19, $_20, " +
-      "$_21, $_22, $_23, $_24, $_25, $_26, $_27, $_28, $_29, $_30, " +
-      "$_31, $_32, $_33, $_34, $_35, $_36, $_37, $_38, $_39, $_40)");
-  return _1 +
-      _2 +
-      _3 +
-      _4 +
-      _5 +
-      _6 +
-      _7 +
-      _8 +
-      _9 +
-      _10 +
-      _11 +
-      _12 +
-      _13 +
-      _14 +
-      _15 +
-      _16 +
-      _17 +
-      _18 +
-      _19 +
-      _20 +
-      _21 +
-      _22 +
-      _23 +
-      _24 +
-      _25 +
-      _26 +
-      _27 +
-      _28 +
-      _29 +
-      _30 +
-      _31 +
-      _32 +
-      _33 +
-      _34 +
-      _35 +
-      _36 +
-      _37 +
-      _38 +
-      _39 +
-      _40;
-}
-
-typedef NativeVeryManyIntsOp = Int16 Function(
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16);
-
-typedef NativeVeryManyFloatsDoublesOp = Double Function(
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double);
diff --git a/tests/ffi_2/function_structs_by_value_generated_args_leaf_test.dart b/tests/ffi_2/function_structs_by_value_generated_args_leaf_test.dart
deleted file mode 100644
index 866c0bec764..00000000000
--- a/tests/ffi_2/function_structs_by_value_generated_args_leaf_test.dart
+++ /dev/null
@@ -1,5501 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// This file has been automatically generated. Please do not edit it manually.
-// Generated by tests/ffi/generator/structs_by_value_tests_generator.dart.
-//
-// SharedObjects=ffi_test_functions
-// VMOptions=
-// VMOptions=--deterministic --optimization-counter-threshold=90
-// VMOptions=--use-slow-path
-// VMOptions=--use-slow-path --stacktrace-every=100
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
-
-import 'dylib_utils.dart';
-
-// Reuse the compound classes.
-import 'function_structs_by_value_generated_compounds.dart';
-
-final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-void main() {
-  for (int i = 0; i < 100; ++i) {
-    testPassStruct1ByteIntx10Leaf();
-    testPassStruct3BytesHomogeneousUint8x10Leaf();
-    testPassStruct3BytesInt2ByteAlignedx10Leaf();
-    testPassStruct4BytesHomogeneousInt16x10Leaf();
-    testPassStruct7BytesHomogeneousUint8x10Leaf();
-    testPassStruct7BytesInt4ByteAlignedx10Leaf();
-    testPassStruct8BytesIntx10Leaf();
-    testPassStruct8BytesHomogeneousFloatx10Leaf();
-    testPassStruct8BytesMixedx10Leaf();
-    testPassStruct9BytesHomogeneousUint8x10Leaf();
-    testPassStruct9BytesInt4Or8ByteAlignedx10Leaf();
-    testPassStruct12BytesHomogeneousFloatx6Leaf();
-    testPassStruct16BytesHomogeneousFloatx5Leaf();
-    testPassStruct16BytesMixedx10Leaf();
-    testPassStruct16BytesMixed2x10Leaf();
-    testPassStruct17BytesIntx10Leaf();
-    testPassStruct19BytesHomogeneousUint8x10Leaf();
-    testPassStruct20BytesHomogeneousInt32x10Leaf();
-    testPassStruct20BytesHomogeneousFloatLeaf();
-    testPassStruct32BytesHomogeneousDoublex5Leaf();
-    testPassStruct40BytesHomogeneousDoubleLeaf();
-    testPassStruct1024BytesHomogeneousUint64Leaf();
-    testPassFloatStruct16BytesHomogeneousFloatFloatStruct1Leaf();
-    testPassFloatStruct32BytesHomogeneousDoubleFloatStructLeaf();
-    testPassInt8Struct16BytesMixedInt8Struct16BytesMixedInLeaf();
-    testPassDoublex6Struct16BytesMixedx4Int32Leaf();
-    testPassInt32x4Struct16BytesMixedx4DoubleLeaf();
-    testPassStruct40BytesHomogeneousDoubleStruct4BytesHomoLeaf();
-    testPassInt32x8Doublex8Int64Int8Struct1ByteIntInt64IntLeaf();
-    testPassStructAlignmentInt16Leaf();
-    testPassStructAlignmentInt32Leaf();
-    testPassStructAlignmentInt64Leaf();
-    testPassStruct8BytesNestedIntx10Leaf();
-    testPassStruct8BytesNestedFloatx10Leaf();
-    testPassStruct8BytesNestedFloat2x10Leaf();
-    testPassStruct8BytesNestedMixedx10Leaf();
-    testPassStruct16BytesNestedIntx2Leaf();
-    testPassStruct32BytesNestedIntx2Leaf();
-    testPassStructNestedIntStructAlignmentInt16Leaf();
-    testPassStructNestedIntStructAlignmentInt32Leaf();
-    testPassStructNestedIntStructAlignmentInt64Leaf();
-    testPassStructNestedIrregularEvenBiggerx4Leaf();
-    testPassStruct8BytesInlineArrayIntx4Leaf();
-    testPassStructInlineArrayIrregularx4Leaf();
-    testPassStructInlineArray100BytesLeaf();
-    testPassStructStruct16BytesHomogeneousFloat2x5Leaf();
-    testPassStructStruct32BytesHomogeneousDouble2x5Leaf();
-    testPassStructStruct16BytesMixed3x10Leaf();
-    testPassUint8Struct32BytesInlineArrayMultiDimensionalILeaf();
-    testPassUint8Struct4BytesInlineArrayMultiDimensionalInLeaf();
-    testPassStruct3BytesPackedIntx10Leaf();
-    testPassStruct8BytesPackedIntx10Leaf();
-    testPassStruct9BytesPackedMixedx10DoubleInt32x2Leaf();
-    testPassStruct5BytesPackedMixedLeaf();
-    testPassStructNestedAlignmentStruct5BytesPackedMixedLeaf();
-    testPassStruct6BytesInlineArrayIntLeaf();
-    testPassStruct15BytesInlineArrayMixedLeaf();
-    testPassUnion4BytesMixedx10Leaf();
-    testPassUnion8BytesNestedFloatx10Leaf();
-    testPassUnion9BytesNestedIntx10Leaf();
-    testPassUnion16BytesNestedInlineArrayFloatx10Leaf();
-    testPassUnion16BytesNestedFloatx10Leaf();
-    testPassUint8Boolx9Struct10BytesHomogeneousBoolBoolLeaf();
-    testPassUint8Boolx9Struct10BytesInlineArrayBoolBoolLeaf();
-    testPassUint8Struct1ByteBoolLeaf();
-    testPassWCharStructInlineArrayIntUintPtrx2LongUnsignedLeaf();
-    testPassInt64x7Struct12BytesHomogeneousInt32Leaf();
-  }
-}
-
-final passStruct1ByteIntx10Leaf = ffiTestFunctions.lookupFunction<
-    Int64 Function(
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt),
-    int Function(
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt)>("PassStruct1ByteIntx10", isLeaf: true);
-
-/// Smallest struct with data.
-/// 10 struct arguments will exhaust available registers.
-void testPassStruct1ByteIntx10Leaf() {
-  final a0Pointer = calloc<Struct1ByteInt>();
-  final Struct1ByteInt a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct1ByteInt>();
-  final Struct1ByteInt a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct1ByteInt>();
-  final Struct1ByteInt a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct1ByteInt>();
-  final Struct1ByteInt a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct1ByteInt>();
-  final Struct1ByteInt a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct1ByteInt>();
-  final Struct1ByteInt a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct1ByteInt>();
-  final Struct1ByteInt a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct1ByteInt>();
-  final Struct1ByteInt a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct1ByteInt>();
-  final Struct1ByteInt a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct1ByteInt>();
-  final Struct1ByteInt a9 = a9Pointer.ref;
-
-  a0.a0 = -1;
-  a1.a0 = 2;
-  a2.a0 = -3;
-  a3.a0 = 4;
-  a4.a0 = -5;
-  a5.a0 = 6;
-  a6.a0 = -7;
-  a7.a0 = 8;
-  a8.a0 = -9;
-  a9.a0 = 10;
-
-  final result =
-      passStruct1ByteIntx10Leaf(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(5, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct3BytesHomogeneousUint8x10Leaf = ffiTestFunctions.lookupFunction<
-        Int64 Function(
-            Struct3BytesHomogeneousUint8,
-            Struct3BytesHomogeneousUint8,
-            Struct3BytesHomogeneousUint8,
-            Struct3BytesHomogeneousUint8,
-            Struct3BytesHomogeneousUint8,
-            Struct3BytesHomogeneousUint8,
-            Struct3BytesHomogeneousUint8,
-            Struct3BytesHomogeneousUint8,
-            Struct3BytesHomogeneousUint8,
-            Struct3BytesHomogeneousUint8),
-        int Function(
-            Struct3BytesHomogeneousUint8,
-            Struct3BytesHomogeneousUint8,
-            Struct3BytesHomogeneousUint8,
-            Struct3BytesHomogeneousUint8,
-            Struct3BytesHomogeneousUint8,
-            Struct3BytesHomogeneousUint8,
-            Struct3BytesHomogeneousUint8,
-            Struct3BytesHomogeneousUint8,
-            Struct3BytesHomogeneousUint8,
-            Struct3BytesHomogeneousUint8)>(
-    "PassStruct3BytesHomogeneousUint8x10",
-    isLeaf: true);
-
-/// Not a multiple of word size, not a power of two.
-/// 10 struct arguments will exhaust available registers.
-void testPassStruct3BytesHomogeneousUint8x10Leaf() {
-  final a0Pointer = calloc<Struct3BytesHomogeneousUint8>();
-  final Struct3BytesHomogeneousUint8 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct3BytesHomogeneousUint8>();
-  final Struct3BytesHomogeneousUint8 a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct3BytesHomogeneousUint8>();
-  final Struct3BytesHomogeneousUint8 a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct3BytesHomogeneousUint8>();
-  final Struct3BytesHomogeneousUint8 a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct3BytesHomogeneousUint8>();
-  final Struct3BytesHomogeneousUint8 a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct3BytesHomogeneousUint8>();
-  final Struct3BytesHomogeneousUint8 a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct3BytesHomogeneousUint8>();
-  final Struct3BytesHomogeneousUint8 a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct3BytesHomogeneousUint8>();
-  final Struct3BytesHomogeneousUint8 a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct3BytesHomogeneousUint8>();
-  final Struct3BytesHomogeneousUint8 a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct3BytesHomogeneousUint8>();
-  final Struct3BytesHomogeneousUint8 a9 = a9Pointer.ref;
-
-  a0.a0 = 1;
-  a0.a1 = 2;
-  a0.a2 = 3;
-  a1.a0 = 4;
-  a1.a1 = 5;
-  a1.a2 = 6;
-  a2.a0 = 7;
-  a2.a1 = 8;
-  a2.a2 = 9;
-  a3.a0 = 10;
-  a3.a1 = 11;
-  a3.a2 = 12;
-  a4.a0 = 13;
-  a4.a1 = 14;
-  a4.a2 = 15;
-  a5.a0 = 16;
-  a5.a1 = 17;
-  a5.a2 = 18;
-  a6.a0 = 19;
-  a6.a1 = 20;
-  a6.a2 = 21;
-  a7.a0 = 22;
-  a7.a1 = 23;
-  a7.a2 = 24;
-  a8.a0 = 25;
-  a8.a1 = 26;
-  a8.a2 = 27;
-  a9.a0 = 28;
-  a9.a1 = 29;
-  a9.a2 = 30;
-
-  final result = passStruct3BytesHomogeneousUint8x10Leaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(465, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct3BytesInt2ByteAlignedx10Leaf = ffiTestFunctions.lookupFunction<
-        Int64 Function(
-            Struct3BytesInt2ByteAligned,
-            Struct3BytesInt2ByteAligned,
-            Struct3BytesInt2ByteAligned,
-            Struct3BytesInt2ByteAligned,
-            Struct3BytesInt2ByteAligned,
-            Struct3BytesInt2ByteAligned,
-            Struct3BytesInt2ByteAligned,
-            Struct3BytesInt2ByteAligned,
-            Struct3BytesInt2ByteAligned,
-            Struct3BytesInt2ByteAligned),
-        int Function(
-            Struct3BytesInt2ByteAligned,
-            Struct3BytesInt2ByteAligned,
-            Struct3BytesInt2ByteAligned,
-            Struct3BytesInt2ByteAligned,
-            Struct3BytesInt2ByteAligned,
-            Struct3BytesInt2ByteAligned,
-            Struct3BytesInt2ByteAligned,
-            Struct3BytesInt2ByteAligned,
-            Struct3BytesInt2ByteAligned,
-            Struct3BytesInt2ByteAligned)>("PassStruct3BytesInt2ByteAlignedx10",
-    isLeaf: true);
-
-/// Not a multiple of word size, not a power of two.
-/// With alignment rules taken into account size is 4 bytes.
-/// 10 struct arguments will exhaust available registers.
-void testPassStruct3BytesInt2ByteAlignedx10Leaf() {
-  final a0Pointer = calloc<Struct3BytesInt2ByteAligned>();
-  final Struct3BytesInt2ByteAligned a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct3BytesInt2ByteAligned>();
-  final Struct3BytesInt2ByteAligned a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct3BytesInt2ByteAligned>();
-  final Struct3BytesInt2ByteAligned a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct3BytesInt2ByteAligned>();
-  final Struct3BytesInt2ByteAligned a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct3BytesInt2ByteAligned>();
-  final Struct3BytesInt2ByteAligned a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct3BytesInt2ByteAligned>();
-  final Struct3BytesInt2ByteAligned a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct3BytesInt2ByteAligned>();
-  final Struct3BytesInt2ByteAligned a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct3BytesInt2ByteAligned>();
-  final Struct3BytesInt2ByteAligned a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct3BytesInt2ByteAligned>();
-  final Struct3BytesInt2ByteAligned a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct3BytesInt2ByteAligned>();
-  final Struct3BytesInt2ByteAligned a9 = a9Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a1.a0 = -3;
-  a1.a1 = 4;
-  a2.a0 = -5;
-  a2.a1 = 6;
-  a3.a0 = -7;
-  a3.a1 = 8;
-  a4.a0 = -9;
-  a4.a1 = 10;
-  a5.a0 = -11;
-  a5.a1 = 12;
-  a6.a0 = -13;
-  a6.a1 = 14;
-  a7.a0 = -15;
-  a7.a1 = 16;
-  a8.a0 = -17;
-  a8.a1 = 18;
-  a9.a0 = -19;
-  a9.a1 = 20;
-
-  final result = passStruct3BytesInt2ByteAlignedx10Leaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(10, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct4BytesHomogeneousInt16x10Leaf = ffiTestFunctions.lookupFunction<
-        Int64 Function(
-            Struct4BytesHomogeneousInt16,
-            Struct4BytesHomogeneousInt16,
-            Struct4BytesHomogeneousInt16,
-            Struct4BytesHomogeneousInt16,
-            Struct4BytesHomogeneousInt16,
-            Struct4BytesHomogeneousInt16,
-            Struct4BytesHomogeneousInt16,
-            Struct4BytesHomogeneousInt16,
-            Struct4BytesHomogeneousInt16,
-            Struct4BytesHomogeneousInt16),
-        int Function(
-            Struct4BytesHomogeneousInt16,
-            Struct4BytesHomogeneousInt16,
-            Struct4BytesHomogeneousInt16,
-            Struct4BytesHomogeneousInt16,
-            Struct4BytesHomogeneousInt16,
-            Struct4BytesHomogeneousInt16,
-            Struct4BytesHomogeneousInt16,
-            Struct4BytesHomogeneousInt16,
-            Struct4BytesHomogeneousInt16,
-            Struct4BytesHomogeneousInt16)>(
-    "PassStruct4BytesHomogeneousInt16x10",
-    isLeaf: true);
-
-/// Exactly word size on 32-bit architectures.
-/// 10 struct arguments will exhaust available registers.
-void testPassStruct4BytesHomogeneousInt16x10Leaf() {
-  final a0Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a9 = a9Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a1.a0 = -3;
-  a1.a1 = 4;
-  a2.a0 = -5;
-  a2.a1 = 6;
-  a3.a0 = -7;
-  a3.a1 = 8;
-  a4.a0 = -9;
-  a4.a1 = 10;
-  a5.a0 = -11;
-  a5.a1 = 12;
-  a6.a0 = -13;
-  a6.a1 = 14;
-  a7.a0 = -15;
-  a7.a1 = 16;
-  a8.a0 = -17;
-  a8.a1 = 18;
-  a9.a0 = -19;
-  a9.a1 = 20;
-
-  final result = passStruct4BytesHomogeneousInt16x10Leaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(10, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct7BytesHomogeneousUint8x10Leaf = ffiTestFunctions.lookupFunction<
-        Int64 Function(
-            Struct7BytesHomogeneousUint8,
-            Struct7BytesHomogeneousUint8,
-            Struct7BytesHomogeneousUint8,
-            Struct7BytesHomogeneousUint8,
-            Struct7BytesHomogeneousUint8,
-            Struct7BytesHomogeneousUint8,
-            Struct7BytesHomogeneousUint8,
-            Struct7BytesHomogeneousUint8,
-            Struct7BytesHomogeneousUint8,
-            Struct7BytesHomogeneousUint8),
-        int Function(
-            Struct7BytesHomogeneousUint8,
-            Struct7BytesHomogeneousUint8,
-            Struct7BytesHomogeneousUint8,
-            Struct7BytesHomogeneousUint8,
-            Struct7BytesHomogeneousUint8,
-            Struct7BytesHomogeneousUint8,
-            Struct7BytesHomogeneousUint8,
-            Struct7BytesHomogeneousUint8,
-            Struct7BytesHomogeneousUint8,
-            Struct7BytesHomogeneousUint8)>(
-    "PassStruct7BytesHomogeneousUint8x10",
-    isLeaf: true);
-
-/// Sub word size on 64 bit architectures.
-/// 10 struct arguments will exhaust available registers.
-void testPassStruct7BytesHomogeneousUint8x10Leaf() {
-  final a0Pointer = calloc<Struct7BytesHomogeneousUint8>();
-  final Struct7BytesHomogeneousUint8 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct7BytesHomogeneousUint8>();
-  final Struct7BytesHomogeneousUint8 a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct7BytesHomogeneousUint8>();
-  final Struct7BytesHomogeneousUint8 a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct7BytesHomogeneousUint8>();
-  final Struct7BytesHomogeneousUint8 a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct7BytesHomogeneousUint8>();
-  final Struct7BytesHomogeneousUint8 a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct7BytesHomogeneousUint8>();
-  final Struct7BytesHomogeneousUint8 a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct7BytesHomogeneousUint8>();
-  final Struct7BytesHomogeneousUint8 a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct7BytesHomogeneousUint8>();
-  final Struct7BytesHomogeneousUint8 a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct7BytesHomogeneousUint8>();
-  final Struct7BytesHomogeneousUint8 a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct7BytesHomogeneousUint8>();
-  final Struct7BytesHomogeneousUint8 a9 = a9Pointer.ref;
-
-  a0.a0 = 1;
-  a0.a1 = 2;
-  a0.a2 = 3;
-  a0.a3 = 4;
-  a0.a4 = 5;
-  a0.a5 = 6;
-  a0.a6 = 7;
-  a1.a0 = 8;
-  a1.a1 = 9;
-  a1.a2 = 10;
-  a1.a3 = 11;
-  a1.a4 = 12;
-  a1.a5 = 13;
-  a1.a6 = 14;
-  a2.a0 = 15;
-  a2.a1 = 16;
-  a2.a2 = 17;
-  a2.a3 = 18;
-  a2.a4 = 19;
-  a2.a5 = 20;
-  a2.a6 = 21;
-  a3.a0 = 22;
-  a3.a1 = 23;
-  a3.a2 = 24;
-  a3.a3 = 25;
-  a3.a4 = 26;
-  a3.a5 = 27;
-  a3.a6 = 28;
-  a4.a0 = 29;
-  a4.a1 = 30;
-  a4.a2 = 31;
-  a4.a3 = 32;
-  a4.a4 = 33;
-  a4.a5 = 34;
-  a4.a6 = 35;
-  a5.a0 = 36;
-  a5.a1 = 37;
-  a5.a2 = 38;
-  a5.a3 = 39;
-  a5.a4 = 40;
-  a5.a5 = 41;
-  a5.a6 = 42;
-  a6.a0 = 43;
-  a6.a1 = 44;
-  a6.a2 = 45;
-  a6.a3 = 46;
-  a6.a4 = 47;
-  a6.a5 = 48;
-  a6.a6 = 49;
-  a7.a0 = 50;
-  a7.a1 = 51;
-  a7.a2 = 52;
-  a7.a3 = 53;
-  a7.a4 = 54;
-  a7.a5 = 55;
-  a7.a6 = 56;
-  a8.a0 = 57;
-  a8.a1 = 58;
-  a8.a2 = 59;
-  a8.a3 = 60;
-  a8.a4 = 61;
-  a8.a5 = 62;
-  a8.a6 = 63;
-  a9.a0 = 64;
-  a9.a1 = 65;
-  a9.a2 = 66;
-  a9.a3 = 67;
-  a9.a4 = 68;
-  a9.a5 = 69;
-  a9.a6 = 70;
-
-  final result = passStruct7BytesHomogeneousUint8x10Leaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(2485, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct7BytesInt4ByteAlignedx10Leaf = ffiTestFunctions.lookupFunction<
-        Int64 Function(
-            Struct7BytesInt4ByteAligned,
-            Struct7BytesInt4ByteAligned,
-            Struct7BytesInt4ByteAligned,
-            Struct7BytesInt4ByteAligned,
-            Struct7BytesInt4ByteAligned,
-            Struct7BytesInt4ByteAligned,
-            Struct7BytesInt4ByteAligned,
-            Struct7BytesInt4ByteAligned,
-            Struct7BytesInt4ByteAligned,
-            Struct7BytesInt4ByteAligned),
-        int Function(
-            Struct7BytesInt4ByteAligned,
-            Struct7BytesInt4ByteAligned,
-            Struct7BytesInt4ByteAligned,
-            Struct7BytesInt4ByteAligned,
-            Struct7BytesInt4ByteAligned,
-            Struct7BytesInt4ByteAligned,
-            Struct7BytesInt4ByteAligned,
-            Struct7BytesInt4ByteAligned,
-            Struct7BytesInt4ByteAligned,
-            Struct7BytesInt4ByteAligned)>("PassStruct7BytesInt4ByteAlignedx10",
-    isLeaf: true);
-
-/// Sub word size on 64 bit architectures.
-/// With alignment rules taken into account size is 8 bytes.
-/// 10 struct arguments will exhaust available registers.
-void testPassStruct7BytesInt4ByteAlignedx10Leaf() {
-  final a0Pointer = calloc<Struct7BytesInt4ByteAligned>();
-  final Struct7BytesInt4ByteAligned a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct7BytesInt4ByteAligned>();
-  final Struct7BytesInt4ByteAligned a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct7BytesInt4ByteAligned>();
-  final Struct7BytesInt4ByteAligned a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct7BytesInt4ByteAligned>();
-  final Struct7BytesInt4ByteAligned a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct7BytesInt4ByteAligned>();
-  final Struct7BytesInt4ByteAligned a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct7BytesInt4ByteAligned>();
-  final Struct7BytesInt4ByteAligned a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct7BytesInt4ByteAligned>();
-  final Struct7BytesInt4ByteAligned a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct7BytesInt4ByteAligned>();
-  final Struct7BytesInt4ByteAligned a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct7BytesInt4ByteAligned>();
-  final Struct7BytesInt4ByteAligned a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct7BytesInt4ByteAligned>();
-  final Struct7BytesInt4ByteAligned a9 = a9Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a0.a2 = -3;
-  a1.a0 = 4;
-  a1.a1 = -5;
-  a1.a2 = 6;
-  a2.a0 = -7;
-  a2.a1 = 8;
-  a2.a2 = -9;
-  a3.a0 = 10;
-  a3.a1 = -11;
-  a3.a2 = 12;
-  a4.a0 = -13;
-  a4.a1 = 14;
-  a4.a2 = -15;
-  a5.a0 = 16;
-  a5.a1 = -17;
-  a5.a2 = 18;
-  a6.a0 = -19;
-  a6.a1 = 20;
-  a6.a2 = -21;
-  a7.a0 = 22;
-  a7.a1 = -23;
-  a7.a2 = 24;
-  a8.a0 = -25;
-  a8.a1 = 26;
-  a8.a2 = -27;
-  a9.a0 = 28;
-  a9.a1 = -29;
-  a9.a2 = 30;
-
-  final result = passStruct7BytesInt4ByteAlignedx10Leaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(15, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct8BytesIntx10Leaf = ffiTestFunctions.lookupFunction<
-    Int64 Function(
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt),
-    int Function(
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt)>("PassStruct8BytesIntx10", isLeaf: true);
-
-/// Exactly word size struct on 64bit architectures.
-/// 10 struct arguments will exhaust available registers.
-void testPassStruct8BytesIntx10Leaf() {
-  final a0Pointer = calloc<Struct8BytesInt>();
-  final Struct8BytesInt a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct8BytesInt>();
-  final Struct8BytesInt a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct8BytesInt>();
-  final Struct8BytesInt a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct8BytesInt>();
-  final Struct8BytesInt a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct8BytesInt>();
-  final Struct8BytesInt a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct8BytesInt>();
-  final Struct8BytesInt a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct8BytesInt>();
-  final Struct8BytesInt a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct8BytesInt>();
-  final Struct8BytesInt a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct8BytesInt>();
-  final Struct8BytesInt a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct8BytesInt>();
-  final Struct8BytesInt a9 = a9Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a0.a2 = -3;
-  a1.a0 = 4;
-  a1.a1 = -5;
-  a1.a2 = 6;
-  a2.a0 = -7;
-  a2.a1 = 8;
-  a2.a2 = -9;
-  a3.a0 = 10;
-  a3.a1 = -11;
-  a3.a2 = 12;
-  a4.a0 = -13;
-  a4.a1 = 14;
-  a4.a2 = -15;
-  a5.a0 = 16;
-  a5.a1 = -17;
-  a5.a2 = 18;
-  a6.a0 = -19;
-  a6.a1 = 20;
-  a6.a2 = -21;
-  a7.a0 = 22;
-  a7.a1 = -23;
-  a7.a2 = 24;
-  a8.a0 = -25;
-  a8.a1 = 26;
-  a8.a2 = -27;
-  a9.a0 = 28;
-  a9.a1 = -29;
-  a9.a2 = 30;
-
-  final result =
-      passStruct8BytesIntx10Leaf(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(15, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct8BytesHomogeneousFloatx10Leaf = ffiTestFunctions.lookupFunction<
-        Float Function(
-            Struct8BytesHomogeneousFloat,
-            Struct8BytesHomogeneousFloat,
-            Struct8BytesHomogeneousFloat,
-            Struct8BytesHomogeneousFloat,
-            Struct8BytesHomogeneousFloat,
-            Struct8BytesHomogeneousFloat,
-            Struct8BytesHomogeneousFloat,
-            Struct8BytesHomogeneousFloat,
-            Struct8BytesHomogeneousFloat,
-            Struct8BytesHomogeneousFloat),
-        double Function(
-            Struct8BytesHomogeneousFloat,
-            Struct8BytesHomogeneousFloat,
-            Struct8BytesHomogeneousFloat,
-            Struct8BytesHomogeneousFloat,
-            Struct8BytesHomogeneousFloat,
-            Struct8BytesHomogeneousFloat,
-            Struct8BytesHomogeneousFloat,
-            Struct8BytesHomogeneousFloat,
-            Struct8BytesHomogeneousFloat,
-            Struct8BytesHomogeneousFloat)>(
-    "PassStruct8BytesHomogeneousFloatx10",
-    isLeaf: true);
-
-/// Arguments passed in FP registers as long as they fit.
-/// 10 struct arguments will exhaust available registers.
-void testPassStruct8BytesHomogeneousFloatx10Leaf() {
-  final a0Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a9 = a9Pointer.ref;
-
-  a0.a0 = -1.0;
-  a0.a1 = 2.0;
-  a1.a0 = -3.0;
-  a1.a1 = 4.0;
-  a2.a0 = -5.0;
-  a2.a1 = 6.0;
-  a3.a0 = -7.0;
-  a3.a1 = 8.0;
-  a4.a0 = -9.0;
-  a4.a1 = 10.0;
-  a5.a0 = -11.0;
-  a5.a1 = 12.0;
-  a6.a0 = -13.0;
-  a6.a1 = 14.0;
-  a7.a0 = -15.0;
-  a7.a1 = 16.0;
-  a8.a0 = -17.0;
-  a8.a1 = 18.0;
-  a9.a0 = -19.0;
-  a9.a1 = 20.0;
-
-  final result = passStruct8BytesHomogeneousFloatx10Leaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.approxEquals(10.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct8BytesMixedx10Leaf = ffiTestFunctions.lookupFunction<
-    Float Function(
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed),
-    double Function(
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed)>("PassStruct8BytesMixedx10", isLeaf: true);
-
-/// On x64, arguments go in int registers because it is not only float.
-/// 10 struct arguments will exhaust available registers.
-void testPassStruct8BytesMixedx10Leaf() {
-  final a0Pointer = calloc<Struct8BytesMixed>();
-  final Struct8BytesMixed a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct8BytesMixed>();
-  final Struct8BytesMixed a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct8BytesMixed>();
-  final Struct8BytesMixed a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct8BytesMixed>();
-  final Struct8BytesMixed a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct8BytesMixed>();
-  final Struct8BytesMixed a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct8BytesMixed>();
-  final Struct8BytesMixed a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct8BytesMixed>();
-  final Struct8BytesMixed a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct8BytesMixed>();
-  final Struct8BytesMixed a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct8BytesMixed>();
-  final Struct8BytesMixed a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct8BytesMixed>();
-  final Struct8BytesMixed a9 = a9Pointer.ref;
-
-  a0.a0 = -1.0;
-  a0.a1 = 2;
-  a0.a2 = -3;
-  a1.a0 = 4.0;
-  a1.a1 = -5;
-  a1.a2 = 6;
-  a2.a0 = -7.0;
-  a2.a1 = 8;
-  a2.a2 = -9;
-  a3.a0 = 10.0;
-  a3.a1 = -11;
-  a3.a2 = 12;
-  a4.a0 = -13.0;
-  a4.a1 = 14;
-  a4.a2 = -15;
-  a5.a0 = 16.0;
-  a5.a1 = -17;
-  a5.a2 = 18;
-  a6.a0 = -19.0;
-  a6.a1 = 20;
-  a6.a2 = -21;
-  a7.a0 = 22.0;
-  a7.a1 = -23;
-  a7.a2 = 24;
-  a8.a0 = -25.0;
-  a8.a1 = 26;
-  a8.a2 = -27;
-  a9.a0 = 28.0;
-  a9.a1 = -29;
-  a9.a2 = 30;
-
-  final result =
-      passStruct8BytesMixedx10Leaf(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.approxEquals(15.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct9BytesHomogeneousUint8x10Leaf = ffiTestFunctions.lookupFunction<
-        Int64 Function(
-            Struct9BytesHomogeneousUint8,
-            Struct9BytesHomogeneousUint8,
-            Struct9BytesHomogeneousUint8,
-            Struct9BytesHomogeneousUint8,
-            Struct9BytesHomogeneousUint8,
-            Struct9BytesHomogeneousUint8,
-            Struct9BytesHomogeneousUint8,
-            Struct9BytesHomogeneousUint8,
-            Struct9BytesHomogeneousUint8,
-            Struct9BytesHomogeneousUint8),
-        int Function(
-            Struct9BytesHomogeneousUint8,
-            Struct9BytesHomogeneousUint8,
-            Struct9BytesHomogeneousUint8,
-            Struct9BytesHomogeneousUint8,
-            Struct9BytesHomogeneousUint8,
-            Struct9BytesHomogeneousUint8,
-            Struct9BytesHomogeneousUint8,
-            Struct9BytesHomogeneousUint8,
-            Struct9BytesHomogeneousUint8,
-            Struct9BytesHomogeneousUint8)>(
-    "PassStruct9BytesHomogeneousUint8x10",
-    isLeaf: true);
-
-/// Argument is a single byte over a multiple of word size.
-/// 10 struct arguments will exhaust available registers.
-/// Struct only has 1-byte aligned fields to test struct alignment itself.
-/// Tests upper bytes in the integer registers that are partly filled.
-/// Tests stack alignment of non word size stack arguments.
-void testPassStruct9BytesHomogeneousUint8x10Leaf() {
-  final a0Pointer = calloc<Struct9BytesHomogeneousUint8>();
-  final Struct9BytesHomogeneousUint8 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct9BytesHomogeneousUint8>();
-  final Struct9BytesHomogeneousUint8 a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct9BytesHomogeneousUint8>();
-  final Struct9BytesHomogeneousUint8 a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct9BytesHomogeneousUint8>();
-  final Struct9BytesHomogeneousUint8 a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct9BytesHomogeneousUint8>();
-  final Struct9BytesHomogeneousUint8 a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct9BytesHomogeneousUint8>();
-  final Struct9BytesHomogeneousUint8 a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct9BytesHomogeneousUint8>();
-  final Struct9BytesHomogeneousUint8 a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct9BytesHomogeneousUint8>();
-  final Struct9BytesHomogeneousUint8 a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct9BytesHomogeneousUint8>();
-  final Struct9BytesHomogeneousUint8 a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct9BytesHomogeneousUint8>();
-  final Struct9BytesHomogeneousUint8 a9 = a9Pointer.ref;
-
-  a0.a0 = 1;
-  a0.a1 = 2;
-  a0.a2 = 3;
-  a0.a3 = 4;
-  a0.a4 = 5;
-  a0.a5 = 6;
-  a0.a6 = 7;
-  a0.a7 = 8;
-  a0.a8 = 9;
-  a1.a0 = 10;
-  a1.a1 = 11;
-  a1.a2 = 12;
-  a1.a3 = 13;
-  a1.a4 = 14;
-  a1.a5 = 15;
-  a1.a6 = 16;
-  a1.a7 = 17;
-  a1.a8 = 18;
-  a2.a0 = 19;
-  a2.a1 = 20;
-  a2.a2 = 21;
-  a2.a3 = 22;
-  a2.a4 = 23;
-  a2.a5 = 24;
-  a2.a6 = 25;
-  a2.a7 = 26;
-  a2.a8 = 27;
-  a3.a0 = 28;
-  a3.a1 = 29;
-  a3.a2 = 30;
-  a3.a3 = 31;
-  a3.a4 = 32;
-  a3.a5 = 33;
-  a3.a6 = 34;
-  a3.a7 = 35;
-  a3.a8 = 36;
-  a4.a0 = 37;
-  a4.a1 = 38;
-  a4.a2 = 39;
-  a4.a3 = 40;
-  a4.a4 = 41;
-  a4.a5 = 42;
-  a4.a6 = 43;
-  a4.a7 = 44;
-  a4.a8 = 45;
-  a5.a0 = 46;
-  a5.a1 = 47;
-  a5.a2 = 48;
-  a5.a3 = 49;
-  a5.a4 = 50;
-  a5.a5 = 51;
-  a5.a6 = 52;
-  a5.a7 = 53;
-  a5.a8 = 54;
-  a6.a0 = 55;
-  a6.a1 = 56;
-  a6.a2 = 57;
-  a6.a3 = 58;
-  a6.a4 = 59;
-  a6.a5 = 60;
-  a6.a6 = 61;
-  a6.a7 = 62;
-  a6.a8 = 63;
-  a7.a0 = 64;
-  a7.a1 = 65;
-  a7.a2 = 66;
-  a7.a3 = 67;
-  a7.a4 = 68;
-  a7.a5 = 69;
-  a7.a6 = 70;
-  a7.a7 = 71;
-  a7.a8 = 72;
-  a8.a0 = 73;
-  a8.a1 = 74;
-  a8.a2 = 75;
-  a8.a3 = 76;
-  a8.a4 = 77;
-  a8.a5 = 78;
-  a8.a6 = 79;
-  a8.a7 = 80;
-  a8.a8 = 81;
-  a9.a0 = 82;
-  a9.a1 = 83;
-  a9.a2 = 84;
-  a9.a3 = 85;
-  a9.a4 = 86;
-  a9.a5 = 87;
-  a9.a6 = 88;
-  a9.a7 = 89;
-  a9.a8 = 90;
-
-  final result = passStruct9BytesHomogeneousUint8x10Leaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(4095, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct9BytesInt4Or8ByteAlignedx10Leaf =
-    ffiTestFunctions.lookupFunction<
-            Int64 Function(
-                Struct9BytesInt4Or8ByteAligned,
-                Struct9BytesInt4Or8ByteAligned,
-                Struct9BytesInt4Or8ByteAligned,
-                Struct9BytesInt4Or8ByteAligned,
-                Struct9BytesInt4Or8ByteAligned,
-                Struct9BytesInt4Or8ByteAligned,
-                Struct9BytesInt4Or8ByteAligned,
-                Struct9BytesInt4Or8ByteAligned,
-                Struct9BytesInt4Or8ByteAligned,
-                Struct9BytesInt4Or8ByteAligned),
-            int Function(
-                Struct9BytesInt4Or8ByteAligned,
-                Struct9BytesInt4Or8ByteAligned,
-                Struct9BytesInt4Or8ByteAligned,
-                Struct9BytesInt4Or8ByteAligned,
-                Struct9BytesInt4Or8ByteAligned,
-                Struct9BytesInt4Or8ByteAligned,
-                Struct9BytesInt4Or8ByteAligned,
-                Struct9BytesInt4Or8ByteAligned,
-                Struct9BytesInt4Or8ByteAligned,
-                Struct9BytesInt4Or8ByteAligned)>(
-        "PassStruct9BytesInt4Or8ByteAlignedx10",
-        isLeaf: true);
-
-/// Argument is a single byte over a multiple of word size.
-/// With alignment rules taken into account size is 12 or 16 bytes.
-/// 10 struct arguments will exhaust available registers.
-///
-void testPassStruct9BytesInt4Or8ByteAlignedx10Leaf() {
-  final a0Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
-  final Struct9BytesInt4Or8ByteAligned a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
-  final Struct9BytesInt4Or8ByteAligned a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
-  final Struct9BytesInt4Or8ByteAligned a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
-  final Struct9BytesInt4Or8ByteAligned a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
-  final Struct9BytesInt4Or8ByteAligned a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
-  final Struct9BytesInt4Or8ByteAligned a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
-  final Struct9BytesInt4Or8ByteAligned a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
-  final Struct9BytesInt4Or8ByteAligned a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
-  final Struct9BytesInt4Or8ByteAligned a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
-  final Struct9BytesInt4Or8ByteAligned a9 = a9Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a1.a0 = -3;
-  a1.a1 = 4;
-  a2.a0 = -5;
-  a2.a1 = 6;
-  a3.a0 = -7;
-  a3.a1 = 8;
-  a4.a0 = -9;
-  a4.a1 = 10;
-  a5.a0 = -11;
-  a5.a1 = 12;
-  a6.a0 = -13;
-  a6.a1 = 14;
-  a7.a0 = -15;
-  a7.a1 = 16;
-  a8.a0 = -17;
-  a8.a1 = 18;
-  a9.a0 = -19;
-  a9.a1 = 20;
-
-  final result = passStruct9BytesInt4Or8ByteAlignedx10Leaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(10, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct12BytesHomogeneousFloatx6Leaf = ffiTestFunctions.lookupFunction<
-        Float Function(
-            Struct12BytesHomogeneousFloat,
-            Struct12BytesHomogeneousFloat,
-            Struct12BytesHomogeneousFloat,
-            Struct12BytesHomogeneousFloat,
-            Struct12BytesHomogeneousFloat,
-            Struct12BytesHomogeneousFloat),
-        double Function(
-            Struct12BytesHomogeneousFloat,
-            Struct12BytesHomogeneousFloat,
-            Struct12BytesHomogeneousFloat,
-            Struct12BytesHomogeneousFloat,
-            Struct12BytesHomogeneousFloat,
-            Struct12BytesHomogeneousFloat)>(
-    "PassStruct12BytesHomogeneousFloatx6",
-    isLeaf: true);
-
-/// Arguments in FPU registers on arm hardfp and arm64.
-/// Struct arguments will exhaust available registers, and leave some empty.
-/// The last argument is to test whether arguments are backfilled.
-void testPassStruct12BytesHomogeneousFloatx6Leaf() {
-  final a0Pointer = calloc<Struct12BytesHomogeneousFloat>();
-  final Struct12BytesHomogeneousFloat a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct12BytesHomogeneousFloat>();
-  final Struct12BytesHomogeneousFloat a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct12BytesHomogeneousFloat>();
-  final Struct12BytesHomogeneousFloat a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct12BytesHomogeneousFloat>();
-  final Struct12BytesHomogeneousFloat a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct12BytesHomogeneousFloat>();
-  final Struct12BytesHomogeneousFloat a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct12BytesHomogeneousFloat>();
-  final Struct12BytesHomogeneousFloat a5 = a5Pointer.ref;
-
-  a0.a0 = -1.0;
-  a0.a1 = 2.0;
-  a0.a2 = -3.0;
-  a1.a0 = 4.0;
-  a1.a1 = -5.0;
-  a1.a2 = 6.0;
-  a2.a0 = -7.0;
-  a2.a1 = 8.0;
-  a2.a2 = -9.0;
-  a3.a0 = 10.0;
-  a3.a1 = -11.0;
-  a3.a2 = 12.0;
-  a4.a0 = -13.0;
-  a4.a1 = 14.0;
-  a4.a2 = -15.0;
-  a5.a0 = 16.0;
-  a5.a1 = -17.0;
-  a5.a2 = 18.0;
-
-  final result =
-      passStruct12BytesHomogeneousFloatx6Leaf(a0, a1, a2, a3, a4, a5);
-
-  print("result = $result");
-
-  Expect.approxEquals(9.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-}
-
-final passStruct16BytesHomogeneousFloatx5Leaf = ffiTestFunctions.lookupFunction<
-        Float Function(
-            Struct16BytesHomogeneousFloat,
-            Struct16BytesHomogeneousFloat,
-            Struct16BytesHomogeneousFloat,
-            Struct16BytesHomogeneousFloat,
-            Struct16BytesHomogeneousFloat),
-        double Function(
-            Struct16BytesHomogeneousFloat,
-            Struct16BytesHomogeneousFloat,
-            Struct16BytesHomogeneousFloat,
-            Struct16BytesHomogeneousFloat,
-            Struct16BytesHomogeneousFloat)>(
-    "PassStruct16BytesHomogeneousFloatx5",
-    isLeaf: true);
-
-/// On Linux x64 argument is transferred on stack because it is over 16 bytes.
-/// Arguments in FPU registers on arm hardfp and arm64.
-/// 5 struct arguments will exhaust available registers.
-void testPassStruct16BytesHomogeneousFloatx5Leaf() {
-  final a0Pointer = calloc<Struct16BytesHomogeneousFloat>();
-  final Struct16BytesHomogeneousFloat a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct16BytesHomogeneousFloat>();
-  final Struct16BytesHomogeneousFloat a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct16BytesHomogeneousFloat>();
-  final Struct16BytesHomogeneousFloat a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct16BytesHomogeneousFloat>();
-  final Struct16BytesHomogeneousFloat a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct16BytesHomogeneousFloat>();
-  final Struct16BytesHomogeneousFloat a4 = a4Pointer.ref;
-
-  a0.a0 = -1.0;
-  a0.a1 = 2.0;
-  a0.a2 = -3.0;
-  a0.a3 = 4.0;
-  a1.a0 = -5.0;
-  a1.a1 = 6.0;
-  a1.a2 = -7.0;
-  a1.a3 = 8.0;
-  a2.a0 = -9.0;
-  a2.a1 = 10.0;
-  a2.a2 = -11.0;
-  a2.a3 = 12.0;
-  a3.a0 = -13.0;
-  a3.a1 = 14.0;
-  a3.a2 = -15.0;
-  a3.a3 = 16.0;
-  a4.a0 = -17.0;
-  a4.a1 = 18.0;
-  a4.a2 = -19.0;
-  a4.a3 = 20.0;
-
-  final result = passStruct16BytesHomogeneousFloatx5Leaf(a0, a1, a2, a3, a4);
-
-  print("result = $result");
-
-  Expect.approxEquals(10.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-}
-
-final passStruct16BytesMixedx10Leaf = ffiTestFunctions.lookupFunction<
-    Double Function(
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed),
-    double Function(
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed)>("PassStruct16BytesMixedx10", isLeaf: true);
-
-/// On x64, arguments are split over FP and int registers.
-/// On x64, it will exhaust the integer registers with the 6th argument.
-/// The rest goes on the stack.
-/// On arm, arguments are 8 byte aligned.
-void testPassStruct16BytesMixedx10Leaf() {
-  final a0Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a9 = a9Pointer.ref;
-
-  a0.a0 = -1.0;
-  a0.a1 = 2;
-  a1.a0 = -3.0;
-  a1.a1 = 4;
-  a2.a0 = -5.0;
-  a2.a1 = 6;
-  a3.a0 = -7.0;
-  a3.a1 = 8;
-  a4.a0 = -9.0;
-  a4.a1 = 10;
-  a5.a0 = -11.0;
-  a5.a1 = 12;
-  a6.a0 = -13.0;
-  a6.a1 = 14;
-  a7.a0 = -15.0;
-  a7.a1 = 16;
-  a8.a0 = -17.0;
-  a8.a1 = 18;
-  a9.a0 = -19.0;
-  a9.a1 = 20;
-
-  final result =
-      passStruct16BytesMixedx10Leaf(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.approxEquals(10.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct16BytesMixed2x10Leaf = ffiTestFunctions.lookupFunction<
-    Float Function(
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2),
-    double Function(
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2)>("PassStruct16BytesMixed2x10", isLeaf: true);
-
-/// On x64, arguments are split over FP and int registers.
-/// On x64, it will exhaust the integer registers with the 6th argument.
-/// The rest goes on the stack.
-/// On arm, arguments are 4 byte aligned.
-void testPassStruct16BytesMixed2x10Leaf() {
-  final a0Pointer = calloc<Struct16BytesMixed2>();
-  final Struct16BytesMixed2 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct16BytesMixed2>();
-  final Struct16BytesMixed2 a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct16BytesMixed2>();
-  final Struct16BytesMixed2 a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct16BytesMixed2>();
-  final Struct16BytesMixed2 a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct16BytesMixed2>();
-  final Struct16BytesMixed2 a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct16BytesMixed2>();
-  final Struct16BytesMixed2 a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct16BytesMixed2>();
-  final Struct16BytesMixed2 a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct16BytesMixed2>();
-  final Struct16BytesMixed2 a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct16BytesMixed2>();
-  final Struct16BytesMixed2 a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct16BytesMixed2>();
-  final Struct16BytesMixed2 a9 = a9Pointer.ref;
-
-  a0.a0 = -1.0;
-  a0.a1 = 2.0;
-  a0.a2 = -3.0;
-  a0.a3 = 4;
-  a1.a0 = -5.0;
-  a1.a1 = 6.0;
-  a1.a2 = -7.0;
-  a1.a3 = 8;
-  a2.a0 = -9.0;
-  a2.a1 = 10.0;
-  a2.a2 = -11.0;
-  a2.a3 = 12;
-  a3.a0 = -13.0;
-  a3.a1 = 14.0;
-  a3.a2 = -15.0;
-  a3.a3 = 16;
-  a4.a0 = -17.0;
-  a4.a1 = 18.0;
-  a4.a2 = -19.0;
-  a4.a3 = 20;
-  a5.a0 = -21.0;
-  a5.a1 = 22.0;
-  a5.a2 = -23.0;
-  a5.a3 = 24;
-  a6.a0 = -25.0;
-  a6.a1 = 26.0;
-  a6.a2 = -27.0;
-  a6.a3 = 28;
-  a7.a0 = -29.0;
-  a7.a1 = 30.0;
-  a7.a2 = -31.0;
-  a7.a3 = 32;
-  a8.a0 = -33.0;
-  a8.a1 = 34.0;
-  a8.a2 = -35.0;
-  a8.a3 = 36;
-  a9.a0 = -37.0;
-  a9.a1 = 38.0;
-  a9.a2 = -39.0;
-  a9.a3 = 40;
-
-  final result =
-      passStruct16BytesMixed2x10Leaf(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.approxEquals(20.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct17BytesIntx10Leaf = ffiTestFunctions.lookupFunction<
-    Int64 Function(
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt),
-    int Function(
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt)>("PassStruct17BytesIntx10", isLeaf: true);
-
-/// Arguments are passed as pointer to copy on arm64.
-/// Tests that the memory allocated for copies are rounded up to word size.
-void testPassStruct17BytesIntx10Leaf() {
-  final a0Pointer = calloc<Struct17BytesInt>();
-  final Struct17BytesInt a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct17BytesInt>();
-  final Struct17BytesInt a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct17BytesInt>();
-  final Struct17BytesInt a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct17BytesInt>();
-  final Struct17BytesInt a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct17BytesInt>();
-  final Struct17BytesInt a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct17BytesInt>();
-  final Struct17BytesInt a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct17BytesInt>();
-  final Struct17BytesInt a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct17BytesInt>();
-  final Struct17BytesInt a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct17BytesInt>();
-  final Struct17BytesInt a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct17BytesInt>();
-  final Struct17BytesInt a9 = a9Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a0.a2 = -3;
-  a1.a0 = 4;
-  a1.a1 = -5;
-  a1.a2 = 6;
-  a2.a0 = -7;
-  a2.a1 = 8;
-  a2.a2 = -9;
-  a3.a0 = 10;
-  a3.a1 = -11;
-  a3.a2 = 12;
-  a4.a0 = -13;
-  a4.a1 = 14;
-  a4.a2 = -15;
-  a5.a0 = 16;
-  a5.a1 = -17;
-  a5.a2 = 18;
-  a6.a0 = -19;
-  a6.a1 = 20;
-  a6.a2 = -21;
-  a7.a0 = 22;
-  a7.a1 = -23;
-  a7.a2 = 24;
-  a8.a0 = -25;
-  a8.a1 = 26;
-  a8.a2 = -27;
-  a9.a0 = 28;
-  a9.a1 = -29;
-  a9.a2 = 30;
-
-  final result =
-      passStruct17BytesIntx10Leaf(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(15, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct19BytesHomogeneousUint8x10Leaf =
-    ffiTestFunctions.lookupFunction<
-            Int64 Function(
-                Struct19BytesHomogeneousUint8,
-                Struct19BytesHomogeneousUint8,
-                Struct19BytesHomogeneousUint8,
-                Struct19BytesHomogeneousUint8,
-                Struct19BytesHomogeneousUint8,
-                Struct19BytesHomogeneousUint8,
-                Struct19BytesHomogeneousUint8,
-                Struct19BytesHomogeneousUint8,
-                Struct19BytesHomogeneousUint8,
-                Struct19BytesHomogeneousUint8),
-            int Function(
-                Struct19BytesHomogeneousUint8,
-                Struct19BytesHomogeneousUint8,
-                Struct19BytesHomogeneousUint8,
-                Struct19BytesHomogeneousUint8,
-                Struct19BytesHomogeneousUint8,
-                Struct19BytesHomogeneousUint8,
-                Struct19BytesHomogeneousUint8,
-                Struct19BytesHomogeneousUint8,
-                Struct19BytesHomogeneousUint8,
-                Struct19BytesHomogeneousUint8)>(
-        "PassStruct19BytesHomogeneousUint8x10",
-        isLeaf: true);
-
-/// The minimum alignment of this struct is only 1 byte based on its fields.
-/// Test that the memory backing these structs is extended to the right size.
-///
-void testPassStruct19BytesHomogeneousUint8x10Leaf() {
-  final a0Pointer = calloc<Struct19BytesHomogeneousUint8>();
-  final Struct19BytesHomogeneousUint8 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct19BytesHomogeneousUint8>();
-  final Struct19BytesHomogeneousUint8 a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct19BytesHomogeneousUint8>();
-  final Struct19BytesHomogeneousUint8 a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct19BytesHomogeneousUint8>();
-  final Struct19BytesHomogeneousUint8 a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct19BytesHomogeneousUint8>();
-  final Struct19BytesHomogeneousUint8 a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct19BytesHomogeneousUint8>();
-  final Struct19BytesHomogeneousUint8 a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct19BytesHomogeneousUint8>();
-  final Struct19BytesHomogeneousUint8 a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct19BytesHomogeneousUint8>();
-  final Struct19BytesHomogeneousUint8 a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct19BytesHomogeneousUint8>();
-  final Struct19BytesHomogeneousUint8 a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct19BytesHomogeneousUint8>();
-  final Struct19BytesHomogeneousUint8 a9 = a9Pointer.ref;
-
-  a0.a0 = 1;
-  a0.a1 = 2;
-  a0.a2 = 3;
-  a0.a3 = 4;
-  a0.a4 = 5;
-  a0.a5 = 6;
-  a0.a6 = 7;
-  a0.a7 = 8;
-  a0.a8 = 9;
-  a0.a9 = 10;
-  a0.a10 = 11;
-  a0.a11 = 12;
-  a0.a12 = 13;
-  a0.a13 = 14;
-  a0.a14 = 15;
-  a0.a15 = 16;
-  a0.a16 = 17;
-  a0.a17 = 18;
-  a0.a18 = 19;
-  a1.a0 = 20;
-  a1.a1 = 21;
-  a1.a2 = 22;
-  a1.a3 = 23;
-  a1.a4 = 24;
-  a1.a5 = 25;
-  a1.a6 = 26;
-  a1.a7 = 27;
-  a1.a8 = 28;
-  a1.a9 = 29;
-  a1.a10 = 30;
-  a1.a11 = 31;
-  a1.a12 = 32;
-  a1.a13 = 33;
-  a1.a14 = 34;
-  a1.a15 = 35;
-  a1.a16 = 36;
-  a1.a17 = 37;
-  a1.a18 = 38;
-  a2.a0 = 39;
-  a2.a1 = 40;
-  a2.a2 = 41;
-  a2.a3 = 42;
-  a2.a4 = 43;
-  a2.a5 = 44;
-  a2.a6 = 45;
-  a2.a7 = 46;
-  a2.a8 = 47;
-  a2.a9 = 48;
-  a2.a10 = 49;
-  a2.a11 = 50;
-  a2.a12 = 51;
-  a2.a13 = 52;
-  a2.a14 = 53;
-  a2.a15 = 54;
-  a2.a16 = 55;
-  a2.a17 = 56;
-  a2.a18 = 57;
-  a3.a0 = 58;
-  a3.a1 = 59;
-  a3.a2 = 60;
-  a3.a3 = 61;
-  a3.a4 = 62;
-  a3.a5 = 63;
-  a3.a6 = 64;
-  a3.a7 = 65;
-  a3.a8 = 66;
-  a3.a9 = 67;
-  a3.a10 = 68;
-  a3.a11 = 69;
-  a3.a12 = 70;
-  a3.a13 = 71;
-  a3.a14 = 72;
-  a3.a15 = 73;
-  a3.a16 = 74;
-  a3.a17 = 75;
-  a3.a18 = 76;
-  a4.a0 = 77;
-  a4.a1 = 78;
-  a4.a2 = 79;
-  a4.a3 = 80;
-  a4.a4 = 81;
-  a4.a5 = 82;
-  a4.a6 = 83;
-  a4.a7 = 84;
-  a4.a8 = 85;
-  a4.a9 = 86;
-  a4.a10 = 87;
-  a4.a11 = 88;
-  a4.a12 = 89;
-  a4.a13 = 90;
-  a4.a14 = 91;
-  a4.a15 = 92;
-  a4.a16 = 93;
-  a4.a17 = 94;
-  a4.a18 = 95;
-  a5.a0 = 96;
-  a5.a1 = 97;
-  a5.a2 = 98;
-  a5.a3 = 99;
-  a5.a4 = 100;
-  a5.a5 = 101;
-  a5.a6 = 102;
-  a5.a7 = 103;
-  a5.a8 = 104;
-  a5.a9 = 105;
-  a5.a10 = 106;
-  a5.a11 = 107;
-  a5.a12 = 108;
-  a5.a13 = 109;
-  a5.a14 = 110;
-  a5.a15 = 111;
-  a5.a16 = 112;
-  a5.a17 = 113;
-  a5.a18 = 114;
-  a6.a0 = 115;
-  a6.a1 = 116;
-  a6.a2 = 117;
-  a6.a3 = 118;
-  a6.a4 = 119;
-  a6.a5 = 120;
-  a6.a6 = 121;
-  a6.a7 = 122;
-  a6.a8 = 123;
-  a6.a9 = 124;
-  a6.a10 = 125;
-  a6.a11 = 126;
-  a6.a12 = 127;
-  a6.a13 = 128;
-  a6.a14 = 129;
-  a6.a15 = 130;
-  a6.a16 = 131;
-  a6.a17 = 132;
-  a6.a18 = 133;
-  a7.a0 = 134;
-  a7.a1 = 135;
-  a7.a2 = 136;
-  a7.a3 = 137;
-  a7.a4 = 138;
-  a7.a5 = 139;
-  a7.a6 = 140;
-  a7.a7 = 141;
-  a7.a8 = 142;
-  a7.a9 = 143;
-  a7.a10 = 144;
-  a7.a11 = 145;
-  a7.a12 = 146;
-  a7.a13 = 147;
-  a7.a14 = 148;
-  a7.a15 = 149;
-  a7.a16 = 150;
-  a7.a17 = 151;
-  a7.a18 = 152;
-  a8.a0 = 153;
-  a8.a1 = 154;
-  a8.a2 = 155;
-  a8.a3 = 156;
-  a8.a4 = 157;
-  a8.a5 = 158;
-  a8.a6 = 159;
-  a8.a7 = 160;
-  a8.a8 = 161;
-  a8.a9 = 162;
-  a8.a10 = 163;
-  a8.a11 = 164;
-  a8.a12 = 165;
-  a8.a13 = 166;
-  a8.a14 = 167;
-  a8.a15 = 168;
-  a8.a16 = 169;
-  a8.a17 = 170;
-  a8.a18 = 171;
-  a9.a0 = 172;
-  a9.a1 = 173;
-  a9.a2 = 174;
-  a9.a3 = 175;
-  a9.a4 = 176;
-  a9.a5 = 177;
-  a9.a6 = 178;
-  a9.a7 = 179;
-  a9.a8 = 180;
-  a9.a9 = 181;
-  a9.a10 = 182;
-  a9.a11 = 183;
-  a9.a12 = 184;
-  a9.a13 = 185;
-  a9.a14 = 186;
-  a9.a15 = 187;
-  a9.a16 = 188;
-  a9.a17 = 189;
-  a9.a18 = 190;
-
-  final result = passStruct19BytesHomogeneousUint8x10Leaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(18145, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct20BytesHomogeneousInt32x10Leaf =
-    ffiTestFunctions.lookupFunction<
-            Int32 Function(
-                Struct20BytesHomogeneousInt32,
-                Struct20BytesHomogeneousInt32,
-                Struct20BytesHomogeneousInt32,
-                Struct20BytesHomogeneousInt32,
-                Struct20BytesHomogeneousInt32,
-                Struct20BytesHomogeneousInt32,
-                Struct20BytesHomogeneousInt32,
-                Struct20BytesHomogeneousInt32,
-                Struct20BytesHomogeneousInt32,
-                Struct20BytesHomogeneousInt32),
-            int Function(
-                Struct20BytesHomogeneousInt32,
-                Struct20BytesHomogeneousInt32,
-                Struct20BytesHomogeneousInt32,
-                Struct20BytesHomogeneousInt32,
-                Struct20BytesHomogeneousInt32,
-                Struct20BytesHomogeneousInt32,
-                Struct20BytesHomogeneousInt32,
-                Struct20BytesHomogeneousInt32,
-                Struct20BytesHomogeneousInt32,
-                Struct20BytesHomogeneousInt32)>(
-        "PassStruct20BytesHomogeneousInt32x10",
-        isLeaf: true);
-
-/// Argument too big to go into integer registers on arm64.
-/// The arguments are passed as pointers to copies.
-/// The amount of arguments exhausts the number of integer registers, such that
-/// pointers to copies are also passed on the stack.
-void testPassStruct20BytesHomogeneousInt32x10Leaf() {
-  final a0Pointer = calloc<Struct20BytesHomogeneousInt32>();
-  final Struct20BytesHomogeneousInt32 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct20BytesHomogeneousInt32>();
-  final Struct20BytesHomogeneousInt32 a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct20BytesHomogeneousInt32>();
-  final Struct20BytesHomogeneousInt32 a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct20BytesHomogeneousInt32>();
-  final Struct20BytesHomogeneousInt32 a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct20BytesHomogeneousInt32>();
-  final Struct20BytesHomogeneousInt32 a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct20BytesHomogeneousInt32>();
-  final Struct20BytesHomogeneousInt32 a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct20BytesHomogeneousInt32>();
-  final Struct20BytesHomogeneousInt32 a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct20BytesHomogeneousInt32>();
-  final Struct20BytesHomogeneousInt32 a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct20BytesHomogeneousInt32>();
-  final Struct20BytesHomogeneousInt32 a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct20BytesHomogeneousInt32>();
-  final Struct20BytesHomogeneousInt32 a9 = a9Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a0.a2 = -3;
-  a0.a3 = 4;
-  a0.a4 = -5;
-  a1.a0 = 6;
-  a1.a1 = -7;
-  a1.a2 = 8;
-  a1.a3 = -9;
-  a1.a4 = 10;
-  a2.a0 = -11;
-  a2.a1 = 12;
-  a2.a2 = -13;
-  a2.a3 = 14;
-  a2.a4 = -15;
-  a3.a0 = 16;
-  a3.a1 = -17;
-  a3.a2 = 18;
-  a3.a3 = -19;
-  a3.a4 = 20;
-  a4.a0 = -21;
-  a4.a1 = 22;
-  a4.a2 = -23;
-  a4.a3 = 24;
-  a4.a4 = -25;
-  a5.a0 = 26;
-  a5.a1 = -27;
-  a5.a2 = 28;
-  a5.a3 = -29;
-  a5.a4 = 30;
-  a6.a0 = -31;
-  a6.a1 = 32;
-  a6.a2 = -33;
-  a6.a3 = 34;
-  a6.a4 = -35;
-  a7.a0 = 36;
-  a7.a1 = -37;
-  a7.a2 = 38;
-  a7.a3 = -39;
-  a7.a4 = 40;
-  a8.a0 = -41;
-  a8.a1 = 42;
-  a8.a2 = -43;
-  a8.a3 = 44;
-  a8.a4 = -45;
-  a9.a0 = 46;
-  a9.a1 = -47;
-  a9.a2 = 48;
-  a9.a3 = -49;
-  a9.a4 = 50;
-
-  final result = passStruct20BytesHomogeneousInt32x10Leaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(25, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct20BytesHomogeneousFloatLeaf = ffiTestFunctions.lookupFunction<
-        Float Function(Struct20BytesHomogeneousFloat),
-        double Function(Struct20BytesHomogeneousFloat)>(
-    "PassStruct20BytesHomogeneousFloat",
-    isLeaf: true);
-
-/// Argument too big to go into FPU registers in hardfp and arm64.
-void testPassStruct20BytesHomogeneousFloatLeaf() {
-  final a0Pointer = calloc<Struct20BytesHomogeneousFloat>();
-  final Struct20BytesHomogeneousFloat a0 = a0Pointer.ref;
-
-  a0.a0 = -1.0;
-  a0.a1 = 2.0;
-  a0.a2 = -3.0;
-  a0.a3 = 4.0;
-  a0.a4 = -5.0;
-
-  final result = passStruct20BytesHomogeneousFloatLeaf(a0);
-
-  print("result = $result");
-
-  Expect.approxEquals(-3.0, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passStruct32BytesHomogeneousDoublex5Leaf =
-    ffiTestFunctions.lookupFunction<
-            Double Function(
-                Struct32BytesHomogeneousDouble,
-                Struct32BytesHomogeneousDouble,
-                Struct32BytesHomogeneousDouble,
-                Struct32BytesHomogeneousDouble,
-                Struct32BytesHomogeneousDouble),
-            double Function(
-                Struct32BytesHomogeneousDouble,
-                Struct32BytesHomogeneousDouble,
-                Struct32BytesHomogeneousDouble,
-                Struct32BytesHomogeneousDouble,
-                Struct32BytesHomogeneousDouble)>(
-        "PassStruct32BytesHomogeneousDoublex5",
-        isLeaf: true);
-
-/// Arguments in FPU registers on arm64.
-/// 5 struct arguments will exhaust available registers.
-void testPassStruct32BytesHomogeneousDoublex5Leaf() {
-  final a0Pointer = calloc<Struct32BytesHomogeneousDouble>();
-  final Struct32BytesHomogeneousDouble a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct32BytesHomogeneousDouble>();
-  final Struct32BytesHomogeneousDouble a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct32BytesHomogeneousDouble>();
-  final Struct32BytesHomogeneousDouble a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct32BytesHomogeneousDouble>();
-  final Struct32BytesHomogeneousDouble a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct32BytesHomogeneousDouble>();
-  final Struct32BytesHomogeneousDouble a4 = a4Pointer.ref;
-
-  a0.a0 = -1.0;
-  a0.a1 = 2.0;
-  a0.a2 = -3.0;
-  a0.a3 = 4.0;
-  a1.a0 = -5.0;
-  a1.a1 = 6.0;
-  a1.a2 = -7.0;
-  a1.a3 = 8.0;
-  a2.a0 = -9.0;
-  a2.a1 = 10.0;
-  a2.a2 = -11.0;
-  a2.a3 = 12.0;
-  a3.a0 = -13.0;
-  a3.a1 = 14.0;
-  a3.a2 = -15.0;
-  a3.a3 = 16.0;
-  a4.a0 = -17.0;
-  a4.a1 = 18.0;
-  a4.a2 = -19.0;
-  a4.a3 = 20.0;
-
-  final result = passStruct32BytesHomogeneousDoublex5Leaf(a0, a1, a2, a3, a4);
-
-  print("result = $result");
-
-  Expect.approxEquals(10.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-}
-
-final passStruct40BytesHomogeneousDoubleLeaf = ffiTestFunctions.lookupFunction<
-        Double Function(Struct40BytesHomogeneousDouble),
-        double Function(Struct40BytesHomogeneousDouble)>(
-    "PassStruct40BytesHomogeneousDouble",
-    isLeaf: true);
-
-/// Argument too big to go into FPU registers in arm64.
-void testPassStruct40BytesHomogeneousDoubleLeaf() {
-  final a0Pointer = calloc<Struct40BytesHomogeneousDouble>();
-  final Struct40BytesHomogeneousDouble a0 = a0Pointer.ref;
-
-  a0.a0 = -1.0;
-  a0.a1 = 2.0;
-  a0.a2 = -3.0;
-  a0.a3 = 4.0;
-  a0.a4 = -5.0;
-
-  final result = passStruct40BytesHomogeneousDoubleLeaf(a0);
-
-  print("result = $result");
-
-  Expect.approxEquals(-3.0, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passStruct1024BytesHomogeneousUint64Leaf =
-    ffiTestFunctions.lookupFunction<
-            Uint64 Function(Struct1024BytesHomogeneousUint64),
-            int Function(Struct1024BytesHomogeneousUint64)>(
-        "PassStruct1024BytesHomogeneousUint64",
-        isLeaf: true);
-
-/// Test 1kb struct.
-void testPassStruct1024BytesHomogeneousUint64Leaf() {
-  final a0Pointer = calloc<Struct1024BytesHomogeneousUint64>();
-  final Struct1024BytesHomogeneousUint64 a0 = a0Pointer.ref;
-
-  a0.a0 = 1;
-  a0.a1 = 2;
-  a0.a2 = 3;
-  a0.a3 = 4;
-  a0.a4 = 5;
-  a0.a5 = 6;
-  a0.a6 = 7;
-  a0.a7 = 8;
-  a0.a8 = 9;
-  a0.a9 = 10;
-  a0.a10 = 11;
-  a0.a11 = 12;
-  a0.a12 = 13;
-  a0.a13 = 14;
-  a0.a14 = 15;
-  a0.a15 = 16;
-  a0.a16 = 17;
-  a0.a17 = 18;
-  a0.a18 = 19;
-  a0.a19 = 20;
-  a0.a20 = 21;
-  a0.a21 = 22;
-  a0.a22 = 23;
-  a0.a23 = 24;
-  a0.a24 = 25;
-  a0.a25 = 26;
-  a0.a26 = 27;
-  a0.a27 = 28;
-  a0.a28 = 29;
-  a0.a29 = 30;
-  a0.a30 = 31;
-  a0.a31 = 32;
-  a0.a32 = 33;
-  a0.a33 = 34;
-  a0.a34 = 35;
-  a0.a35 = 36;
-  a0.a36 = 37;
-  a0.a37 = 38;
-  a0.a38 = 39;
-  a0.a39 = 40;
-  a0.a40 = 41;
-  a0.a41 = 42;
-  a0.a42 = 43;
-  a0.a43 = 44;
-  a0.a44 = 45;
-  a0.a45 = 46;
-  a0.a46 = 47;
-  a0.a47 = 48;
-  a0.a48 = 49;
-  a0.a49 = 50;
-  a0.a50 = 51;
-  a0.a51 = 52;
-  a0.a52 = 53;
-  a0.a53 = 54;
-  a0.a54 = 55;
-  a0.a55 = 56;
-  a0.a56 = 57;
-  a0.a57 = 58;
-  a0.a58 = 59;
-  a0.a59 = 60;
-  a0.a60 = 61;
-  a0.a61 = 62;
-  a0.a62 = 63;
-  a0.a63 = 64;
-  a0.a64 = 65;
-  a0.a65 = 66;
-  a0.a66 = 67;
-  a0.a67 = 68;
-  a0.a68 = 69;
-  a0.a69 = 70;
-  a0.a70 = 71;
-  a0.a71 = 72;
-  a0.a72 = 73;
-  a0.a73 = 74;
-  a0.a74 = 75;
-  a0.a75 = 76;
-  a0.a76 = 77;
-  a0.a77 = 78;
-  a0.a78 = 79;
-  a0.a79 = 80;
-  a0.a80 = 81;
-  a0.a81 = 82;
-  a0.a82 = 83;
-  a0.a83 = 84;
-  a0.a84 = 85;
-  a0.a85 = 86;
-  a0.a86 = 87;
-  a0.a87 = 88;
-  a0.a88 = 89;
-  a0.a89 = 90;
-  a0.a90 = 91;
-  a0.a91 = 92;
-  a0.a92 = 93;
-  a0.a93 = 94;
-  a0.a94 = 95;
-  a0.a95 = 96;
-  a0.a96 = 97;
-  a0.a97 = 98;
-  a0.a98 = 99;
-  a0.a99 = 100;
-  a0.a100 = 101;
-  a0.a101 = 102;
-  a0.a102 = 103;
-  a0.a103 = 104;
-  a0.a104 = 105;
-  a0.a105 = 106;
-  a0.a106 = 107;
-  a0.a107 = 108;
-  a0.a108 = 109;
-  a0.a109 = 110;
-  a0.a110 = 111;
-  a0.a111 = 112;
-  a0.a112 = 113;
-  a0.a113 = 114;
-  a0.a114 = 115;
-  a0.a115 = 116;
-  a0.a116 = 117;
-  a0.a117 = 118;
-  a0.a118 = 119;
-  a0.a119 = 120;
-  a0.a120 = 121;
-  a0.a121 = 122;
-  a0.a122 = 123;
-  a0.a123 = 124;
-  a0.a124 = 125;
-  a0.a125 = 126;
-  a0.a126 = 127;
-  a0.a127 = 128;
-
-  final result = passStruct1024BytesHomogeneousUint64Leaf(a0);
-
-  print("result = $result");
-
-  Expect.equals(8256, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passFloatStruct16BytesHomogeneousFloatFloatStruct1Leaf =
-    ffiTestFunctions.lookupFunction<
-            Float Function(
-                Float,
-                Struct16BytesHomogeneousFloat,
-                Float,
-                Struct16BytesHomogeneousFloat,
-                Float,
-                Struct16BytesHomogeneousFloat,
-                Float,
-                Struct16BytesHomogeneousFloat,
-                Float),
-            double Function(
-                double,
-                Struct16BytesHomogeneousFloat,
-                double,
-                Struct16BytesHomogeneousFloat,
-                double,
-                Struct16BytesHomogeneousFloat,
-                double,
-                Struct16BytesHomogeneousFloat,
-                double)>("PassFloatStruct16BytesHomogeneousFloatFloatStruct1",
-        isLeaf: true);
-
-/// Tests the alignment of structs in FPU registers and backfilling.
-void testPassFloatStruct16BytesHomogeneousFloatFloatStruct1Leaf() {
-  double a0;
-  final a1Pointer = calloc<Struct16BytesHomogeneousFloat>();
-  final Struct16BytesHomogeneousFloat a1 = a1Pointer.ref;
-  double a2;
-  final a3Pointer = calloc<Struct16BytesHomogeneousFloat>();
-  final Struct16BytesHomogeneousFloat a3 = a3Pointer.ref;
-  double a4;
-  final a5Pointer = calloc<Struct16BytesHomogeneousFloat>();
-  final Struct16BytesHomogeneousFloat a5 = a5Pointer.ref;
-  double a6;
-  final a7Pointer = calloc<Struct16BytesHomogeneousFloat>();
-  final Struct16BytesHomogeneousFloat a7 = a7Pointer.ref;
-  double a8;
-
-  a0 = -1.0;
-  a1.a0 = 2.0;
-  a1.a1 = -3.0;
-  a1.a2 = 4.0;
-  a1.a3 = -5.0;
-  a2 = 6.0;
-  a3.a0 = -7.0;
-  a3.a1 = 8.0;
-  a3.a2 = -9.0;
-  a3.a3 = 10.0;
-  a4 = -11.0;
-  a5.a0 = 12.0;
-  a5.a1 = -13.0;
-  a5.a2 = 14.0;
-  a5.a3 = -15.0;
-  a6 = 16.0;
-  a7.a0 = -17.0;
-  a7.a1 = 18.0;
-  a7.a2 = -19.0;
-  a7.a3 = 20.0;
-  a8 = -21.0;
-
-  final result = passFloatStruct16BytesHomogeneousFloatFloatStruct1Leaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8);
-
-  print("result = $result");
-
-  Expect.approxEquals(-11.0, result);
-
-  calloc.free(a1Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a7Pointer);
-}
-
-final passFloatStruct32BytesHomogeneousDoubleFloatStructLeaf =
-    ffiTestFunctions.lookupFunction<
-            Double Function(
-                Float,
-                Struct32BytesHomogeneousDouble,
-                Float,
-                Struct32BytesHomogeneousDouble,
-                Float,
-                Struct32BytesHomogeneousDouble,
-                Float,
-                Struct32BytesHomogeneousDouble,
-                Float),
-            double Function(
-                double,
-                Struct32BytesHomogeneousDouble,
-                double,
-                Struct32BytesHomogeneousDouble,
-                double,
-                Struct32BytesHomogeneousDouble,
-                double,
-                Struct32BytesHomogeneousDouble,
-                double)>("PassFloatStruct32BytesHomogeneousDoubleFloatStruct",
-        isLeaf: true);
-
-/// Tests the alignment of structs in FPU registers and backfilling.
-void testPassFloatStruct32BytesHomogeneousDoubleFloatStructLeaf() {
-  double a0;
-  final a1Pointer = calloc<Struct32BytesHomogeneousDouble>();
-  final Struct32BytesHomogeneousDouble a1 = a1Pointer.ref;
-  double a2;
-  final a3Pointer = calloc<Struct32BytesHomogeneousDouble>();
-  final Struct32BytesHomogeneousDouble a3 = a3Pointer.ref;
-  double a4;
-  final a5Pointer = calloc<Struct32BytesHomogeneousDouble>();
-  final Struct32BytesHomogeneousDouble a5 = a5Pointer.ref;
-  double a6;
-  final a7Pointer = calloc<Struct32BytesHomogeneousDouble>();
-  final Struct32BytesHomogeneousDouble a7 = a7Pointer.ref;
-  double a8;
-
-  a0 = -1.0;
-  a1.a0 = 2.0;
-  a1.a1 = -3.0;
-  a1.a2 = 4.0;
-  a1.a3 = -5.0;
-  a2 = 6.0;
-  a3.a0 = -7.0;
-  a3.a1 = 8.0;
-  a3.a2 = -9.0;
-  a3.a3 = 10.0;
-  a4 = -11.0;
-  a5.a0 = 12.0;
-  a5.a1 = -13.0;
-  a5.a2 = 14.0;
-  a5.a3 = -15.0;
-  a6 = 16.0;
-  a7.a0 = -17.0;
-  a7.a1 = 18.0;
-  a7.a2 = -19.0;
-  a7.a3 = 20.0;
-  a8 = -21.0;
-
-  final result = passFloatStruct32BytesHomogeneousDoubleFloatStructLeaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8);
-
-  print("result = $result");
-
-  Expect.approxEquals(-11.0, result);
-
-  calloc.free(a1Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a7Pointer);
-}
-
-final passInt8Struct16BytesMixedInt8Struct16BytesMixedInLeaf =
-    ffiTestFunctions.lookupFunction<
-            Double Function(Int8, Struct16BytesMixed, Int8, Struct16BytesMixed,
-                Int8, Struct16BytesMixed, Int8, Struct16BytesMixed, Int8),
-            double Function(
-                int,
-                Struct16BytesMixed,
-                int,
-                Struct16BytesMixed,
-                int,
-                Struct16BytesMixed,
-                int,
-                Struct16BytesMixed,
-                int)>("PassInt8Struct16BytesMixedInt8Struct16BytesMixedIn",
-        isLeaf: true);
-
-/// Tests the alignment of structs in integers registers and on the stack.
-/// Arm32 aligns this struct at 8.
-/// Also, arm32 allocates the second struct partially in registers, partially
-/// on stack.
-/// Test backfilling of integer registers.
-void testPassInt8Struct16BytesMixedInt8Struct16BytesMixedInLeaf() {
-  int a0;
-  final a1Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a1 = a1Pointer.ref;
-  int a2;
-  final a3Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a3 = a3Pointer.ref;
-  int a4;
-  final a5Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a5 = a5Pointer.ref;
-  int a6;
-  final a7Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a7 = a7Pointer.ref;
-  int a8;
-
-  a0 = -1;
-  a1.a0 = 2.0;
-  a1.a1 = -3;
-  a2 = 4;
-  a3.a0 = -5.0;
-  a3.a1 = 6;
-  a4 = -7;
-  a5.a0 = 8.0;
-  a5.a1 = -9;
-  a6 = 10;
-  a7.a0 = -11.0;
-  a7.a1 = 12;
-  a8 = -13;
-
-  final result = passInt8Struct16BytesMixedInt8Struct16BytesMixedInLeaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8);
-
-  print("result = $result");
-
-  Expect.approxEquals(-7.0, result);
-
-  calloc.free(a1Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a7Pointer);
-}
-
-final passDoublex6Struct16BytesMixedx4Int32Leaf =
-    ffiTestFunctions.lookupFunction<
-        Double Function(
-            Double,
-            Double,
-            Double,
-            Double,
-            Double,
-            Double,
-            Struct16BytesMixed,
-            Struct16BytesMixed,
-            Struct16BytesMixed,
-            Struct16BytesMixed,
-            Int32),
-        double Function(
-            double,
-            double,
-            double,
-            double,
-            double,
-            double,
-            Struct16BytesMixed,
-            Struct16BytesMixed,
-            Struct16BytesMixed,
-            Struct16BytesMixed,
-            int)>("PassDoublex6Struct16BytesMixedx4Int32", isLeaf: true);
-
-/// On Linux x64, it will exhaust xmm registers first, after 6 doubles and 2
-/// structs. The rest of the structs will go on the stack.
-/// The int will be backfilled into the int register.
-void testPassDoublex6Struct16BytesMixedx4Int32Leaf() {
-  double a0;
-  double a1;
-  double a2;
-  double a3;
-  double a4;
-  double a5;
-  final a6Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a9 = a9Pointer.ref;
-  int a10;
-
-  a0 = -1.0;
-  a1 = 2.0;
-  a2 = -3.0;
-  a3 = 4.0;
-  a4 = -5.0;
-  a5 = 6.0;
-  a6.a0 = -7.0;
-  a6.a1 = 8;
-  a7.a0 = -9.0;
-  a7.a1 = 10;
-  a8.a0 = -11.0;
-  a8.a1 = 12;
-  a9.a0 = -13.0;
-  a9.a1 = 14;
-  a10 = -15;
-
-  final result = passDoublex6Struct16BytesMixedx4Int32Leaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
-
-  print("result = $result");
-
-  Expect.approxEquals(-8.0, result);
-
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passInt32x4Struct16BytesMixedx4DoubleLeaf =
-    ffiTestFunctions.lookupFunction<
-        Double Function(Int32, Int32, Int32, Int32, Struct16BytesMixed,
-            Struct16BytesMixed, Struct16BytesMixed, Struct16BytesMixed, Double),
-        double Function(
-            int,
-            int,
-            int,
-            int,
-            Struct16BytesMixed,
-            Struct16BytesMixed,
-            Struct16BytesMixed,
-            Struct16BytesMixed,
-            double)>("PassInt32x4Struct16BytesMixedx4Double", isLeaf: true);
-
-/// On Linux x64, it will exhaust int registers first.
-/// The rest of the structs will go on the stack.
-/// The double will be backfilled into the xmm register.
-void testPassInt32x4Struct16BytesMixedx4DoubleLeaf() {
-  int a0;
-  int a1;
-  int a2;
-  int a3;
-  final a4Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a7 = a7Pointer.ref;
-  double a8;
-
-  a0 = -1;
-  a1 = 2;
-  a2 = -3;
-  a3 = 4;
-  a4.a0 = -5.0;
-  a4.a1 = 6;
-  a5.a0 = -7.0;
-  a5.a1 = 8;
-  a6.a0 = -9.0;
-  a6.a1 = 10;
-  a7.a0 = -11.0;
-  a7.a1 = 12;
-  a8 = -13.0;
-
-  final result = passInt32x4Struct16BytesMixedx4DoubleLeaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8);
-
-  print("result = $result");
-
-  Expect.approxEquals(-7.0, result);
-
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-}
-
-final passStruct40BytesHomogeneousDoubleStruct4BytesHomoLeaf =
-    ffiTestFunctions.lookupFunction<
-            Double Function(Struct40BytesHomogeneousDouble,
-                Struct4BytesHomogeneousInt16, Struct8BytesHomogeneousFloat),
-            double Function(Struct40BytesHomogeneousDouble,
-                Struct4BytesHomogeneousInt16, Struct8BytesHomogeneousFloat)>(
-        "PassStruct40BytesHomogeneousDoubleStruct4BytesHomo",
-        isLeaf: true);
-
-/// On various architectures, first struct is allocated on stack.
-/// Check that the other two arguments are allocated on registers.
-void testPassStruct40BytesHomogeneousDoubleStruct4BytesHomoLeaf() {
-  final a0Pointer = calloc<Struct40BytesHomogeneousDouble>();
-  final Struct40BytesHomogeneousDouble a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a2 = a2Pointer.ref;
-
-  a0.a0 = -1.0;
-  a0.a1 = 2.0;
-  a0.a2 = -3.0;
-  a0.a3 = 4.0;
-  a0.a4 = -5.0;
-  a1.a0 = 6;
-  a1.a1 = -7;
-  a2.a0 = 8.0;
-  a2.a1 = -9.0;
-
-  final result =
-      passStruct40BytesHomogeneousDoubleStruct4BytesHomoLeaf(a0, a1, a2);
-
-  print("result = $result");
-
-  Expect.approxEquals(-5.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-}
-
-final passInt32x8Doublex8Int64Int8Struct1ByteIntInt64IntLeaf =
-    ffiTestFunctions.lookupFunction<
-        Double Function(
-            Int32,
-            Int32,
-            Int32,
-            Int32,
-            Int32,
-            Int32,
-            Int32,
-            Int32,
-            Double,
-            Double,
-            Double,
-            Double,
-            Double,
-            Double,
-            Double,
-            Double,
-            Int64,
-            Int8,
-            Struct1ByteInt,
-            Int64,
-            Int8,
-            Struct4BytesHomogeneousInt16,
-            Int64,
-            Int8,
-            Struct8BytesInt,
-            Int64,
-            Int8,
-            Struct8BytesHomogeneousFloat,
-            Int64,
-            Int8,
-            Struct8BytesMixed,
-            Int64,
-            Int8,
-            StructAlignmentInt16,
-            Int64,
-            Int8,
-            StructAlignmentInt32,
-            Int64,
-            Int8,
-            StructAlignmentInt64),
-        double Function(
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            double,
-            double,
-            double,
-            double,
-            double,
-            double,
-            double,
-            double,
-            int,
-            int,
-            Struct1ByteInt,
-            int,
-            int,
-            Struct4BytesHomogeneousInt16,
-            int,
-            int,
-            Struct8BytesInt,
-            int,
-            int,
-            Struct8BytesHomogeneousFloat,
-            int,
-            int,
-            Struct8BytesMixed,
-            int,
-            int,
-            StructAlignmentInt16,
-            int,
-            int,
-            StructAlignmentInt32,
-            int,
-            int,
-            StructAlignmentInt64)>("PassInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int", isLeaf: true);
-
-/// Test alignment and padding of 16 byte int within struct.
-void testPassInt32x8Doublex8Int64Int8Struct1ByteIntInt64IntLeaf() {
-  int a0;
-  int a1;
-  int a2;
-  int a3;
-  int a4;
-  int a5;
-  int a6;
-  int a7;
-  double a8;
-  double a9;
-  double a10;
-  double a11;
-  double a12;
-  double a13;
-  double a14;
-  double a15;
-  int a16;
-  int a17;
-  final a18Pointer = calloc<Struct1ByteInt>();
-  final Struct1ByteInt a18 = a18Pointer.ref;
-  int a19;
-  int a20;
-  final a21Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a21 = a21Pointer.ref;
-  int a22;
-  int a23;
-  final a24Pointer = calloc<Struct8BytesInt>();
-  final Struct8BytesInt a24 = a24Pointer.ref;
-  int a25;
-  int a26;
-  final a27Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a27 = a27Pointer.ref;
-  int a28;
-  int a29;
-  final a30Pointer = calloc<Struct8BytesMixed>();
-  final Struct8BytesMixed a30 = a30Pointer.ref;
-  int a31;
-  int a32;
-  final a33Pointer = calloc<StructAlignmentInt16>();
-  final StructAlignmentInt16 a33 = a33Pointer.ref;
-  int a34;
-  int a35;
-  final a36Pointer = calloc<StructAlignmentInt32>();
-  final StructAlignmentInt32 a36 = a36Pointer.ref;
-  int a37;
-  int a38;
-  final a39Pointer = calloc<StructAlignmentInt64>();
-  final StructAlignmentInt64 a39 = a39Pointer.ref;
-
-  a0 = -1;
-  a1 = 2;
-  a2 = -3;
-  a3 = 4;
-  a4 = -5;
-  a5 = 6;
-  a6 = -7;
-  a7 = 8;
-  a8 = -9.0;
-  a9 = 10.0;
-  a10 = -11.0;
-  a11 = 12.0;
-  a12 = -13.0;
-  a13 = 14.0;
-  a14 = -15.0;
-  a15 = 16.0;
-  a16 = -17;
-  a17 = 18;
-  a18.a0 = -19;
-  a19 = 20;
-  a20 = -21;
-  a21.a0 = 22;
-  a21.a1 = -23;
-  a22 = 24;
-  a23 = -25;
-  a24.a0 = 26;
-  a24.a1 = -27;
-  a24.a2 = 28;
-  a25 = -29;
-  a26 = 30;
-  a27.a0 = -31.0;
-  a27.a1 = 32.0;
-  a28 = -33;
-  a29 = 34;
-  a30.a0 = -35.0;
-  a30.a1 = 36;
-  a30.a2 = -37;
-  a31 = 38;
-  a32 = -39;
-  a33.a0 = 40;
-  a33.a1 = -41;
-  a33.a2 = 42;
-  a34 = -43;
-  a35 = 44;
-  a36.a0 = -45;
-  a36.a1 = 46;
-  a36.a2 = -47;
-  a37 = 48;
-  a38 = -49;
-  a39.a0 = 50;
-  a39.a1 = -51;
-  a39.a2 = 52;
-
-  final result = passInt32x8Doublex8Int64Int8Struct1ByteIntInt64IntLeaf(
-      a0,
-      a1,
-      a2,
-      a3,
-      a4,
-      a5,
-      a6,
-      a7,
-      a8,
-      a9,
-      a10,
-      a11,
-      a12,
-      a13,
-      a14,
-      a15,
-      a16,
-      a17,
-      a18,
-      a19,
-      a20,
-      a21,
-      a22,
-      a23,
-      a24,
-      a25,
-      a26,
-      a27,
-      a28,
-      a29,
-      a30,
-      a31,
-      a32,
-      a33,
-      a34,
-      a35,
-      a36,
-      a37,
-      a38,
-      a39);
-
-  print("result = $result");
-
-  Expect.approxEquals(26.0, result);
-
-  calloc.free(a18Pointer);
-  calloc.free(a21Pointer);
-  calloc.free(a24Pointer);
-  calloc.free(a27Pointer);
-  calloc.free(a30Pointer);
-  calloc.free(a33Pointer);
-  calloc.free(a36Pointer);
-  calloc.free(a39Pointer);
-}
-
-final passStructAlignmentInt16Leaf = ffiTestFunctions.lookupFunction<
-    Int64 Function(StructAlignmentInt16),
-    int Function(
-        StructAlignmentInt16)>("PassStructAlignmentInt16", isLeaf: true);
-
-/// Test alignment and padding of 16 byte int within struct.
-void testPassStructAlignmentInt16Leaf() {
-  final a0Pointer = calloc<StructAlignmentInt16>();
-  final StructAlignmentInt16 a0 = a0Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a0.a2 = -3;
-
-  final result = passStructAlignmentInt16Leaf(a0);
-
-  print("result = $result");
-
-  Expect.equals(-2, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passStructAlignmentInt32Leaf = ffiTestFunctions.lookupFunction<
-    Int64 Function(StructAlignmentInt32),
-    int Function(
-        StructAlignmentInt32)>("PassStructAlignmentInt32", isLeaf: true);
-
-/// Test alignment and padding of 32 byte int within struct.
-void testPassStructAlignmentInt32Leaf() {
-  final a0Pointer = calloc<StructAlignmentInt32>();
-  final StructAlignmentInt32 a0 = a0Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a0.a2 = -3;
-
-  final result = passStructAlignmentInt32Leaf(a0);
-
-  print("result = $result");
-
-  Expect.equals(-2, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passStructAlignmentInt64Leaf = ffiTestFunctions.lookupFunction<
-    Int64 Function(StructAlignmentInt64),
-    int Function(
-        StructAlignmentInt64)>("PassStructAlignmentInt64", isLeaf: true);
-
-/// Test alignment and padding of 64 byte int within struct.
-void testPassStructAlignmentInt64Leaf() {
-  final a0Pointer = calloc<StructAlignmentInt64>();
-  final StructAlignmentInt64 a0 = a0Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a0.a2 = -3;
-
-  final result = passStructAlignmentInt64Leaf(a0);
-
-  print("result = $result");
-
-  Expect.equals(-2, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passStruct8BytesNestedIntx10Leaf = ffiTestFunctions.lookupFunction<
-    Int64 Function(
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt),
-    int Function(
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt)>("PassStruct8BytesNestedIntx10", isLeaf: true);
-
-/// Simple nested struct. No alignment gaps on any architectures.
-/// 10 arguments exhaust registers on all platforms.
-void testPassStruct8BytesNestedIntx10Leaf() {
-  final a0Pointer = calloc<Struct8BytesNestedInt>();
-  final Struct8BytesNestedInt a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct8BytesNestedInt>();
-  final Struct8BytesNestedInt a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct8BytesNestedInt>();
-  final Struct8BytesNestedInt a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct8BytesNestedInt>();
-  final Struct8BytesNestedInt a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct8BytesNestedInt>();
-  final Struct8BytesNestedInt a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct8BytesNestedInt>();
-  final Struct8BytesNestedInt a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct8BytesNestedInt>();
-  final Struct8BytesNestedInt a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct8BytesNestedInt>();
-  final Struct8BytesNestedInt a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct8BytesNestedInt>();
-  final Struct8BytesNestedInt a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct8BytesNestedInt>();
-  final Struct8BytesNestedInt a9 = a9Pointer.ref;
-
-  a0.a0.a0 = -1;
-  a0.a0.a1 = 2;
-  a0.a1.a0 = -3;
-  a0.a1.a1 = 4;
-  a1.a0.a0 = -5;
-  a1.a0.a1 = 6;
-  a1.a1.a0 = -7;
-  a1.a1.a1 = 8;
-  a2.a0.a0 = -9;
-  a2.a0.a1 = 10;
-  a2.a1.a0 = -11;
-  a2.a1.a1 = 12;
-  a3.a0.a0 = -13;
-  a3.a0.a1 = 14;
-  a3.a1.a0 = -15;
-  a3.a1.a1 = 16;
-  a4.a0.a0 = -17;
-  a4.a0.a1 = 18;
-  a4.a1.a0 = -19;
-  a4.a1.a1 = 20;
-  a5.a0.a0 = -21;
-  a5.a0.a1 = 22;
-  a5.a1.a0 = -23;
-  a5.a1.a1 = 24;
-  a6.a0.a0 = -25;
-  a6.a0.a1 = 26;
-  a6.a1.a0 = -27;
-  a6.a1.a1 = 28;
-  a7.a0.a0 = -29;
-  a7.a0.a1 = 30;
-  a7.a1.a0 = -31;
-  a7.a1.a1 = 32;
-  a8.a0.a0 = -33;
-  a8.a0.a1 = 34;
-  a8.a1.a0 = -35;
-  a8.a1.a1 = 36;
-  a9.a0.a0 = -37;
-  a9.a0.a1 = 38;
-  a9.a1.a0 = -39;
-  a9.a1.a1 = 40;
-
-  final result =
-      passStruct8BytesNestedIntx10Leaf(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(20, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct8BytesNestedFloatx10Leaf = ffiTestFunctions.lookupFunction<
-        Float Function(
-            Struct8BytesNestedFloat,
-            Struct8BytesNestedFloat,
-            Struct8BytesNestedFloat,
-            Struct8BytesNestedFloat,
-            Struct8BytesNestedFloat,
-            Struct8BytesNestedFloat,
-            Struct8BytesNestedFloat,
-            Struct8BytesNestedFloat,
-            Struct8BytesNestedFloat,
-            Struct8BytesNestedFloat),
-        double Function(
-            Struct8BytesNestedFloat,
-            Struct8BytesNestedFloat,
-            Struct8BytesNestedFloat,
-            Struct8BytesNestedFloat,
-            Struct8BytesNestedFloat,
-            Struct8BytesNestedFloat,
-            Struct8BytesNestedFloat,
-            Struct8BytesNestedFloat,
-            Struct8BytesNestedFloat,
-            Struct8BytesNestedFloat)>("PassStruct8BytesNestedFloatx10",
-    isLeaf: true);
-
-/// Simple nested struct. No alignment gaps on any architectures.
-/// 10 arguments exhaust fpu registers on all platforms.
-void testPassStruct8BytesNestedFloatx10Leaf() {
-  final a0Pointer = calloc<Struct8BytesNestedFloat>();
-  final Struct8BytesNestedFloat a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct8BytesNestedFloat>();
-  final Struct8BytesNestedFloat a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct8BytesNestedFloat>();
-  final Struct8BytesNestedFloat a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct8BytesNestedFloat>();
-  final Struct8BytesNestedFloat a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct8BytesNestedFloat>();
-  final Struct8BytesNestedFloat a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct8BytesNestedFloat>();
-  final Struct8BytesNestedFloat a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct8BytesNestedFloat>();
-  final Struct8BytesNestedFloat a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct8BytesNestedFloat>();
-  final Struct8BytesNestedFloat a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct8BytesNestedFloat>();
-  final Struct8BytesNestedFloat a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct8BytesNestedFloat>();
-  final Struct8BytesNestedFloat a9 = a9Pointer.ref;
-
-  a0.a0.a0 = -1.0;
-  a0.a1.a0 = 2.0;
-  a1.a0.a0 = -3.0;
-  a1.a1.a0 = 4.0;
-  a2.a0.a0 = -5.0;
-  a2.a1.a0 = 6.0;
-  a3.a0.a0 = -7.0;
-  a3.a1.a0 = 8.0;
-  a4.a0.a0 = -9.0;
-  a4.a1.a0 = 10.0;
-  a5.a0.a0 = -11.0;
-  a5.a1.a0 = 12.0;
-  a6.a0.a0 = -13.0;
-  a6.a1.a0 = 14.0;
-  a7.a0.a0 = -15.0;
-  a7.a1.a0 = 16.0;
-  a8.a0.a0 = -17.0;
-  a8.a1.a0 = 18.0;
-  a9.a0.a0 = -19.0;
-  a9.a1.a0 = 20.0;
-
-  final result = passStruct8BytesNestedFloatx10Leaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.approxEquals(10.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct8BytesNestedFloat2x10Leaf = ffiTestFunctions.lookupFunction<
-        Float Function(
-            Struct8BytesNestedFloat2,
-            Struct8BytesNestedFloat2,
-            Struct8BytesNestedFloat2,
-            Struct8BytesNestedFloat2,
-            Struct8BytesNestedFloat2,
-            Struct8BytesNestedFloat2,
-            Struct8BytesNestedFloat2,
-            Struct8BytesNestedFloat2,
-            Struct8BytesNestedFloat2,
-            Struct8BytesNestedFloat2),
-        double Function(
-            Struct8BytesNestedFloat2,
-            Struct8BytesNestedFloat2,
-            Struct8BytesNestedFloat2,
-            Struct8BytesNestedFloat2,
-            Struct8BytesNestedFloat2,
-            Struct8BytesNestedFloat2,
-            Struct8BytesNestedFloat2,
-            Struct8BytesNestedFloat2,
-            Struct8BytesNestedFloat2,
-            Struct8BytesNestedFloat2)>("PassStruct8BytesNestedFloat2x10",
-    isLeaf: true);
-
-/// Simple nested struct. No alignment gaps on any architectures.
-/// 10 arguments exhaust fpu registers on all platforms.
-/// The nesting is irregular, testing homogenous float rules on arm and arm64,
-/// and the fpu register usage on x64.
-void testPassStruct8BytesNestedFloat2x10Leaf() {
-  final a0Pointer = calloc<Struct8BytesNestedFloat2>();
-  final Struct8BytesNestedFloat2 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct8BytesNestedFloat2>();
-  final Struct8BytesNestedFloat2 a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct8BytesNestedFloat2>();
-  final Struct8BytesNestedFloat2 a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct8BytesNestedFloat2>();
-  final Struct8BytesNestedFloat2 a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct8BytesNestedFloat2>();
-  final Struct8BytesNestedFloat2 a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct8BytesNestedFloat2>();
-  final Struct8BytesNestedFloat2 a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct8BytesNestedFloat2>();
-  final Struct8BytesNestedFloat2 a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct8BytesNestedFloat2>();
-  final Struct8BytesNestedFloat2 a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct8BytesNestedFloat2>();
-  final Struct8BytesNestedFloat2 a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct8BytesNestedFloat2>();
-  final Struct8BytesNestedFloat2 a9 = a9Pointer.ref;
-
-  a0.a0.a0 = -1.0;
-  a0.a1 = 2.0;
-  a1.a0.a0 = -3.0;
-  a1.a1 = 4.0;
-  a2.a0.a0 = -5.0;
-  a2.a1 = 6.0;
-  a3.a0.a0 = -7.0;
-  a3.a1 = 8.0;
-  a4.a0.a0 = -9.0;
-  a4.a1 = 10.0;
-  a5.a0.a0 = -11.0;
-  a5.a1 = 12.0;
-  a6.a0.a0 = -13.0;
-  a6.a1 = 14.0;
-  a7.a0.a0 = -15.0;
-  a7.a1 = 16.0;
-  a8.a0.a0 = -17.0;
-  a8.a1 = 18.0;
-  a9.a0.a0 = -19.0;
-  a9.a1 = 20.0;
-
-  final result = passStruct8BytesNestedFloat2x10Leaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.approxEquals(10.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct8BytesNestedMixedx10Leaf = ffiTestFunctions.lookupFunction<
-        Double Function(
-            Struct8BytesNestedMixed,
-            Struct8BytesNestedMixed,
-            Struct8BytesNestedMixed,
-            Struct8BytesNestedMixed,
-            Struct8BytesNestedMixed,
-            Struct8BytesNestedMixed,
-            Struct8BytesNestedMixed,
-            Struct8BytesNestedMixed,
-            Struct8BytesNestedMixed,
-            Struct8BytesNestedMixed),
-        double Function(
-            Struct8BytesNestedMixed,
-            Struct8BytesNestedMixed,
-            Struct8BytesNestedMixed,
-            Struct8BytesNestedMixed,
-            Struct8BytesNestedMixed,
-            Struct8BytesNestedMixed,
-            Struct8BytesNestedMixed,
-            Struct8BytesNestedMixed,
-            Struct8BytesNestedMixed,
-            Struct8BytesNestedMixed)>("PassStruct8BytesNestedMixedx10",
-    isLeaf: true);
-
-/// Simple nested struct. No alignment gaps on any architectures.
-/// 10 arguments exhaust all registers on all platforms.
-void testPassStruct8BytesNestedMixedx10Leaf() {
-  final a0Pointer = calloc<Struct8BytesNestedMixed>();
-  final Struct8BytesNestedMixed a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct8BytesNestedMixed>();
-  final Struct8BytesNestedMixed a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct8BytesNestedMixed>();
-  final Struct8BytesNestedMixed a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct8BytesNestedMixed>();
-  final Struct8BytesNestedMixed a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct8BytesNestedMixed>();
-  final Struct8BytesNestedMixed a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct8BytesNestedMixed>();
-  final Struct8BytesNestedMixed a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct8BytesNestedMixed>();
-  final Struct8BytesNestedMixed a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct8BytesNestedMixed>();
-  final Struct8BytesNestedMixed a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct8BytesNestedMixed>();
-  final Struct8BytesNestedMixed a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct8BytesNestedMixed>();
-  final Struct8BytesNestedMixed a9 = a9Pointer.ref;
-
-  a0.a0.a0 = -1;
-  a0.a0.a1 = 2;
-  a0.a1.a0 = -3.0;
-  a1.a0.a0 = 4;
-  a1.a0.a1 = -5;
-  a1.a1.a0 = 6.0;
-  a2.a0.a0 = -7;
-  a2.a0.a1 = 8;
-  a2.a1.a0 = -9.0;
-  a3.a0.a0 = 10;
-  a3.a0.a1 = -11;
-  a3.a1.a0 = 12.0;
-  a4.a0.a0 = -13;
-  a4.a0.a1 = 14;
-  a4.a1.a0 = -15.0;
-  a5.a0.a0 = 16;
-  a5.a0.a1 = -17;
-  a5.a1.a0 = 18.0;
-  a6.a0.a0 = -19;
-  a6.a0.a1 = 20;
-  a6.a1.a0 = -21.0;
-  a7.a0.a0 = 22;
-  a7.a0.a1 = -23;
-  a7.a1.a0 = 24.0;
-  a8.a0.a0 = -25;
-  a8.a0.a1 = 26;
-  a8.a1.a0 = -27.0;
-  a9.a0.a0 = 28;
-  a9.a0.a1 = -29;
-  a9.a1.a0 = 30.0;
-
-  final result = passStruct8BytesNestedMixedx10Leaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.approxEquals(15.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct16BytesNestedIntx2Leaf = ffiTestFunctions.lookupFunction<
-    Int64 Function(Struct16BytesNestedInt, Struct16BytesNestedInt),
-    int Function(Struct16BytesNestedInt,
-        Struct16BytesNestedInt)>("PassStruct16BytesNestedIntx2", isLeaf: true);
-
-/// Deeper nested struct to test recursive member access.
-void testPassStruct16BytesNestedIntx2Leaf() {
-  final a0Pointer = calloc<Struct16BytesNestedInt>();
-  final Struct16BytesNestedInt a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct16BytesNestedInt>();
-  final Struct16BytesNestedInt a1 = a1Pointer.ref;
-
-  a0.a0.a0.a0 = -1;
-  a0.a0.a0.a1 = 2;
-  a0.a0.a1.a0 = -3;
-  a0.a0.a1.a1 = 4;
-  a0.a1.a0.a0 = -5;
-  a0.a1.a0.a1 = 6;
-  a0.a1.a1.a0 = -7;
-  a0.a1.a1.a1 = 8;
-  a1.a0.a0.a0 = -9;
-  a1.a0.a0.a1 = 10;
-  a1.a0.a1.a0 = -11;
-  a1.a0.a1.a1 = 12;
-  a1.a1.a0.a0 = -13;
-  a1.a1.a0.a1 = 14;
-  a1.a1.a1.a0 = -15;
-  a1.a1.a1.a1 = 16;
-
-  final result = passStruct16BytesNestedIntx2Leaf(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(8, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-}
-
-final passStruct32BytesNestedIntx2Leaf = ffiTestFunctions.lookupFunction<
-    Int64 Function(Struct32BytesNestedInt, Struct32BytesNestedInt),
-    int Function(Struct32BytesNestedInt,
-        Struct32BytesNestedInt)>("PassStruct32BytesNestedIntx2", isLeaf: true);
-
-/// Even deeper nested struct to test recursive member access.
-void testPassStruct32BytesNestedIntx2Leaf() {
-  final a0Pointer = calloc<Struct32BytesNestedInt>();
-  final Struct32BytesNestedInt a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct32BytesNestedInt>();
-  final Struct32BytesNestedInt a1 = a1Pointer.ref;
-
-  a0.a0.a0.a0.a0 = -1;
-  a0.a0.a0.a0.a1 = 2;
-  a0.a0.a0.a1.a0 = -3;
-  a0.a0.a0.a1.a1 = 4;
-  a0.a0.a1.a0.a0 = -5;
-  a0.a0.a1.a0.a1 = 6;
-  a0.a0.a1.a1.a0 = -7;
-  a0.a0.a1.a1.a1 = 8;
-  a0.a1.a0.a0.a0 = -9;
-  a0.a1.a0.a0.a1 = 10;
-  a0.a1.a0.a1.a0 = -11;
-  a0.a1.a0.a1.a1 = 12;
-  a0.a1.a1.a0.a0 = -13;
-  a0.a1.a1.a0.a1 = 14;
-  a0.a1.a1.a1.a0 = -15;
-  a0.a1.a1.a1.a1 = 16;
-  a1.a0.a0.a0.a0 = -17;
-  a1.a0.a0.a0.a1 = 18;
-  a1.a0.a0.a1.a0 = -19;
-  a1.a0.a0.a1.a1 = 20;
-  a1.a0.a1.a0.a0 = -21;
-  a1.a0.a1.a0.a1 = 22;
-  a1.a0.a1.a1.a0 = -23;
-  a1.a0.a1.a1.a1 = 24;
-  a1.a1.a0.a0.a0 = -25;
-  a1.a1.a0.a0.a1 = 26;
-  a1.a1.a0.a1.a0 = -27;
-  a1.a1.a0.a1.a1 = 28;
-  a1.a1.a1.a0.a0 = -29;
-  a1.a1.a1.a0.a1 = 30;
-  a1.a1.a1.a1.a0 = -31;
-  a1.a1.a1.a1.a1 = 32;
-
-  final result = passStruct32BytesNestedIntx2Leaf(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(16, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-}
-
-final passStructNestedIntStructAlignmentInt16Leaf =
-    ffiTestFunctions.lookupFunction<
-            Int64 Function(StructNestedIntStructAlignmentInt16),
-            int Function(StructNestedIntStructAlignmentInt16)>(
-        "PassStructNestedIntStructAlignmentInt16",
-        isLeaf: true);
-
-/// Test alignment and padding of nested struct with 16 byte int.
-void testPassStructNestedIntStructAlignmentInt16Leaf() {
-  final a0Pointer = calloc<StructNestedIntStructAlignmentInt16>();
-  final StructNestedIntStructAlignmentInt16 a0 = a0Pointer.ref;
-
-  a0.a0.a0 = -1;
-  a0.a0.a1 = 2;
-  a0.a0.a2 = -3;
-  a0.a1.a0 = 4;
-  a0.a1.a1 = -5;
-  a0.a1.a2 = 6;
-
-  final result = passStructNestedIntStructAlignmentInt16Leaf(a0);
-
-  print("result = $result");
-
-  Expect.equals(3, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passStructNestedIntStructAlignmentInt32Leaf =
-    ffiTestFunctions.lookupFunction<
-            Int64 Function(StructNestedIntStructAlignmentInt32),
-            int Function(StructNestedIntStructAlignmentInt32)>(
-        "PassStructNestedIntStructAlignmentInt32",
-        isLeaf: true);
-
-/// Test alignment and padding of nested struct with 32 byte int.
-void testPassStructNestedIntStructAlignmentInt32Leaf() {
-  final a0Pointer = calloc<StructNestedIntStructAlignmentInt32>();
-  final StructNestedIntStructAlignmentInt32 a0 = a0Pointer.ref;
-
-  a0.a0.a0 = -1;
-  a0.a0.a1 = 2;
-  a0.a0.a2 = -3;
-  a0.a1.a0 = 4;
-  a0.a1.a1 = -5;
-  a0.a1.a2 = 6;
-
-  final result = passStructNestedIntStructAlignmentInt32Leaf(a0);
-
-  print("result = $result");
-
-  Expect.equals(3, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passStructNestedIntStructAlignmentInt64Leaf =
-    ffiTestFunctions.lookupFunction<
-            Int64 Function(StructNestedIntStructAlignmentInt64),
-            int Function(StructNestedIntStructAlignmentInt64)>(
-        "PassStructNestedIntStructAlignmentInt64",
-        isLeaf: true);
-
-/// Test alignment and padding of nested struct with 64 byte int.
-void testPassStructNestedIntStructAlignmentInt64Leaf() {
-  final a0Pointer = calloc<StructNestedIntStructAlignmentInt64>();
-  final StructNestedIntStructAlignmentInt64 a0 = a0Pointer.ref;
-
-  a0.a0.a0 = -1;
-  a0.a0.a1 = 2;
-  a0.a0.a2 = -3;
-  a0.a1.a0 = 4;
-  a0.a1.a1 = -5;
-  a0.a1.a2 = 6;
-
-  final result = passStructNestedIntStructAlignmentInt64Leaf(a0);
-
-  print("result = $result");
-
-  Expect.equals(3, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passStructNestedIrregularEvenBiggerx4Leaf =
-    ffiTestFunctions.lookupFunction<
-            Double Function(
-                StructNestedIrregularEvenBigger,
-                StructNestedIrregularEvenBigger,
-                StructNestedIrregularEvenBigger,
-                StructNestedIrregularEvenBigger),
-            double Function(
-                StructNestedIrregularEvenBigger,
-                StructNestedIrregularEvenBigger,
-                StructNestedIrregularEvenBigger,
-                StructNestedIrregularEvenBigger)>(
-        "PassStructNestedIrregularEvenBiggerx4",
-        isLeaf: true);
-
-/// Return big irregular struct as smoke test.
-void testPassStructNestedIrregularEvenBiggerx4Leaf() {
-  final a0Pointer = calloc<StructNestedIrregularEvenBigger>();
-  final StructNestedIrregularEvenBigger a0 = a0Pointer.ref;
-  final a1Pointer = calloc<StructNestedIrregularEvenBigger>();
-  final StructNestedIrregularEvenBigger a1 = a1Pointer.ref;
-  final a2Pointer = calloc<StructNestedIrregularEvenBigger>();
-  final StructNestedIrregularEvenBigger a2 = a2Pointer.ref;
-  final a3Pointer = calloc<StructNestedIrregularEvenBigger>();
-  final StructNestedIrregularEvenBigger a3 = a3Pointer.ref;
-
-  a0.a0 = 1;
-  a0.a1.a0.a0 = 2;
-  a0.a1.a0.a1.a0.a0 = -3;
-  a0.a1.a0.a1.a0.a1 = 4;
-  a0.a1.a0.a1.a1.a0 = -5.0;
-  a0.a1.a0.a2 = 6;
-  a0.a1.a0.a3.a0.a0 = -7.0;
-  a0.a1.a0.a3.a1 = 8.0;
-  a0.a1.a0.a4 = 9;
-  a0.a1.a0.a5.a0.a0 = 10.0;
-  a0.a1.a0.a5.a1.a0 = -11.0;
-  a0.a1.a0.a6 = 12;
-  a0.a1.a1.a0.a0 = -13;
-  a0.a1.a1.a0.a1 = 14;
-  a0.a1.a1.a1.a0 = -15.0;
-  a0.a1.a2 = 16.0;
-  a0.a1.a3 = -17.0;
-  a0.a2.a0.a0 = 18;
-  a0.a2.a0.a1.a0.a0 = -19;
-  a0.a2.a0.a1.a0.a1 = 20;
-  a0.a2.a0.a1.a1.a0 = -21.0;
-  a0.a2.a0.a2 = 22;
-  a0.a2.a0.a3.a0.a0 = -23.0;
-  a0.a2.a0.a3.a1 = 24.0;
-  a0.a2.a0.a4 = 25;
-  a0.a2.a0.a5.a0.a0 = 26.0;
-  a0.a2.a0.a5.a1.a0 = -27.0;
-  a0.a2.a0.a6 = 28;
-  a0.a2.a1.a0.a0 = -29;
-  a0.a2.a1.a0.a1 = 30;
-  a0.a2.a1.a1.a0 = -31.0;
-  a0.a2.a2 = 32.0;
-  a0.a2.a3 = -33.0;
-  a0.a3 = 34.0;
-  a1.a0 = 35;
-  a1.a1.a0.a0 = 36;
-  a1.a1.a0.a1.a0.a0 = -37;
-  a1.a1.a0.a1.a0.a1 = 38;
-  a1.a1.a0.a1.a1.a0 = -39.0;
-  a1.a1.a0.a2 = 40;
-  a1.a1.a0.a3.a0.a0 = -41.0;
-  a1.a1.a0.a3.a1 = 42.0;
-  a1.a1.a0.a4 = 43;
-  a1.a1.a0.a5.a0.a0 = 44.0;
-  a1.a1.a0.a5.a1.a0 = -45.0;
-  a1.a1.a0.a6 = 46;
-  a1.a1.a1.a0.a0 = -47;
-  a1.a1.a1.a0.a1 = 48;
-  a1.a1.a1.a1.a0 = -49.0;
-  a1.a1.a2 = 50.0;
-  a1.a1.a3 = -51.0;
-  a1.a2.a0.a0 = 52;
-  a1.a2.a0.a1.a0.a0 = -53;
-  a1.a2.a0.a1.a0.a1 = 54;
-  a1.a2.a0.a1.a1.a0 = -55.0;
-  a1.a2.a0.a2 = 56;
-  a1.a2.a0.a3.a0.a0 = -57.0;
-  a1.a2.a0.a3.a1 = 58.0;
-  a1.a2.a0.a4 = 59;
-  a1.a2.a0.a5.a0.a0 = 60.0;
-  a1.a2.a0.a5.a1.a0 = -61.0;
-  a1.a2.a0.a6 = 62;
-  a1.a2.a1.a0.a0 = -63;
-  a1.a2.a1.a0.a1 = 64;
-  a1.a2.a1.a1.a0 = -65.0;
-  a1.a2.a2 = 66.0;
-  a1.a2.a3 = -67.0;
-  a1.a3 = 68.0;
-  a2.a0 = 69;
-  a2.a1.a0.a0 = 70;
-  a2.a1.a0.a1.a0.a0 = -71;
-  a2.a1.a0.a1.a0.a1 = 72;
-  a2.a1.a0.a1.a1.a0 = -73.0;
-  a2.a1.a0.a2 = 74;
-  a2.a1.a0.a3.a0.a0 = -75.0;
-  a2.a1.a0.a3.a1 = 76.0;
-  a2.a1.a0.a4 = 77;
-  a2.a1.a0.a5.a0.a0 = 78.0;
-  a2.a1.a0.a5.a1.a0 = -79.0;
-  a2.a1.a0.a6 = 80;
-  a2.a1.a1.a0.a0 = -81;
-  a2.a1.a1.a0.a1 = 82;
-  a2.a1.a1.a1.a0 = -83.0;
-  a2.a1.a2 = 84.0;
-  a2.a1.a3 = -85.0;
-  a2.a2.a0.a0 = 86;
-  a2.a2.a0.a1.a0.a0 = -87;
-  a2.a2.a0.a1.a0.a1 = 88;
-  a2.a2.a0.a1.a1.a0 = -89.0;
-  a2.a2.a0.a2 = 90;
-  a2.a2.a0.a3.a0.a0 = -91.0;
-  a2.a2.a0.a3.a1 = 92.0;
-  a2.a2.a0.a4 = 93;
-  a2.a2.a0.a5.a0.a0 = 94.0;
-  a2.a2.a0.a5.a1.a0 = -95.0;
-  a2.a2.a0.a6 = 96;
-  a2.a2.a1.a0.a0 = -97;
-  a2.a2.a1.a0.a1 = 98;
-  a2.a2.a1.a1.a0 = -99.0;
-  a2.a2.a2 = 100.0;
-  a2.a2.a3 = -101.0;
-  a2.a3 = 102.0;
-  a3.a0 = 103;
-  a3.a1.a0.a0 = 104;
-  a3.a1.a0.a1.a0.a0 = -105;
-  a3.a1.a0.a1.a0.a1 = 106;
-  a3.a1.a0.a1.a1.a0 = -107.0;
-  a3.a1.a0.a2 = 108;
-  a3.a1.a0.a3.a0.a0 = -109.0;
-  a3.a1.a0.a3.a1 = 110.0;
-  a3.a1.a0.a4 = 111;
-  a3.a1.a0.a5.a0.a0 = 112.0;
-  a3.a1.a0.a5.a1.a0 = -113.0;
-  a3.a1.a0.a6 = 114;
-  a3.a1.a1.a0.a0 = -115;
-  a3.a1.a1.a0.a1 = 116;
-  a3.a1.a1.a1.a0 = -117.0;
-  a3.a1.a2 = 118.0;
-  a3.a1.a3 = -119.0;
-  a3.a2.a0.a0 = 120;
-  a3.a2.a0.a1.a0.a0 = -121;
-  a3.a2.a0.a1.a0.a1 = 122;
-  a3.a2.a0.a1.a1.a0 = -123.0;
-  a3.a2.a0.a2 = 124;
-  a3.a2.a0.a3.a0.a0 = -125.0;
-  a3.a2.a0.a3.a1 = 126.0;
-  a3.a2.a0.a4 = 127;
-  a3.a2.a0.a5.a0.a0 = 128.0;
-  a3.a2.a0.a5.a1.a0 = -129.0;
-  a3.a2.a0.a6 = 130;
-  a3.a2.a1.a0.a0 = -131;
-  a3.a2.a1.a0.a1 = 132;
-  a3.a2.a1.a1.a0 = -133.0;
-  a3.a2.a2 = 134.0;
-  a3.a2.a3 = -135.0;
-  a3.a3 = 136.0;
-
-  final result = passStructNestedIrregularEvenBiggerx4Leaf(a0, a1, a2, a3);
-
-  print("result = $result");
-
-  Expect.approxEquals(1572.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-}
-
-final passStruct8BytesInlineArrayIntx4Leaf = ffiTestFunctions.lookupFunction<
-        Int32 Function(Struct8BytesInlineArrayInt, Struct8BytesInlineArrayInt,
-            Struct8BytesInlineArrayInt, Struct8BytesInlineArrayInt),
-        int Function(
-            Struct8BytesInlineArrayInt,
-            Struct8BytesInlineArrayInt,
-            Struct8BytesInlineArrayInt,
-            Struct8BytesInlineArrayInt)>("PassStruct8BytesInlineArrayIntx4",
-    isLeaf: true);
-
-/// Simple struct with inline array.
-void testPassStruct8BytesInlineArrayIntx4Leaf() {
-  final a0Pointer = calloc<Struct8BytesInlineArrayInt>();
-  final Struct8BytesInlineArrayInt a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct8BytesInlineArrayInt>();
-  final Struct8BytesInlineArrayInt a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct8BytesInlineArrayInt>();
-  final Struct8BytesInlineArrayInt a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct8BytesInlineArrayInt>();
-  final Struct8BytesInlineArrayInt a3 = a3Pointer.ref;
-
-  a0.a0[0] = 1;
-  a0.a0[1] = 2;
-  a0.a0[2] = 3;
-  a0.a0[3] = 4;
-  a0.a0[4] = 5;
-  a0.a0[5] = 6;
-  a0.a0[6] = 7;
-  a0.a0[7] = 8;
-  a1.a0[0] = 9;
-  a1.a0[1] = 10;
-  a1.a0[2] = 11;
-  a1.a0[3] = 12;
-  a1.a0[4] = 13;
-  a1.a0[5] = 14;
-  a1.a0[6] = 15;
-  a1.a0[7] = 16;
-  a2.a0[0] = 17;
-  a2.a0[1] = 18;
-  a2.a0[2] = 19;
-  a2.a0[3] = 20;
-  a2.a0[4] = 21;
-  a2.a0[5] = 22;
-  a2.a0[6] = 23;
-  a2.a0[7] = 24;
-  a3.a0[0] = 25;
-  a3.a0[1] = 26;
-  a3.a0[2] = 27;
-  a3.a0[3] = 28;
-  a3.a0[4] = 29;
-  a3.a0[5] = 30;
-  a3.a0[6] = 31;
-  a3.a0[7] = 32;
-
-  final result = passStruct8BytesInlineArrayIntx4Leaf(a0, a1, a2, a3);
-
-  print("result = $result");
-
-  Expect.equals(528, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-}
-
-final passStructInlineArrayIrregularx4Leaf = ffiTestFunctions.lookupFunction<
-        Int32 Function(StructInlineArrayIrregular, StructInlineArrayIrregular,
-            StructInlineArrayIrregular, StructInlineArrayIrregular),
-        int Function(
-            StructInlineArrayIrregular,
-            StructInlineArrayIrregular,
-            StructInlineArrayIrregular,
-            StructInlineArrayIrregular)>("PassStructInlineArrayIrregularx4",
-    isLeaf: true);
-
-/// Irregular struct with inline array.
-void testPassStructInlineArrayIrregularx4Leaf() {
-  final a0Pointer = calloc<StructInlineArrayIrregular>();
-  final StructInlineArrayIrregular a0 = a0Pointer.ref;
-  final a1Pointer = calloc<StructInlineArrayIrregular>();
-  final StructInlineArrayIrregular a1 = a1Pointer.ref;
-  final a2Pointer = calloc<StructInlineArrayIrregular>();
-  final StructInlineArrayIrregular a2 = a2Pointer.ref;
-  final a3Pointer = calloc<StructInlineArrayIrregular>();
-  final StructInlineArrayIrregular a3 = a3Pointer.ref;
-
-  a0.a0[0].a0 = -1;
-  a0.a0[0].a1 = 2;
-  a0.a0[1].a0 = -3;
-  a0.a0[1].a1 = 4;
-  a0.a1 = 5;
-  a1.a0[0].a0 = 6;
-  a1.a0[0].a1 = -7;
-  a1.a0[1].a0 = 8;
-  a1.a0[1].a1 = -9;
-  a1.a1 = 10;
-  a2.a0[0].a0 = -11;
-  a2.a0[0].a1 = 12;
-  a2.a0[1].a0 = -13;
-  a2.a0[1].a1 = 14;
-  a2.a1 = 15;
-  a3.a0[0].a0 = 16;
-  a3.a0[0].a1 = -17;
-  a3.a0[1].a0 = 18;
-  a3.a0[1].a1 = -19;
-  a3.a1 = 20;
-
-  final result = passStructInlineArrayIrregularx4Leaf(a0, a1, a2, a3);
-
-  print("result = $result");
-
-  Expect.equals(50, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-}
-
-final passStructInlineArray100BytesLeaf = ffiTestFunctions.lookupFunction<
-        Int32 Function(StructInlineArray100Bytes),
-        int Function(StructInlineArray100Bytes)>(
-    "PassStructInlineArray100Bytes",
-    isLeaf: true);
-
-/// Regular larger struct with inline array.
-void testPassStructInlineArray100BytesLeaf() {
-  final a0Pointer = calloc<StructInlineArray100Bytes>();
-  final StructInlineArray100Bytes a0 = a0Pointer.ref;
-
-  a0.a0[0] = 1;
-  a0.a0[1] = 2;
-  a0.a0[2] = 3;
-  a0.a0[3] = 4;
-  a0.a0[4] = 5;
-  a0.a0[5] = 6;
-  a0.a0[6] = 7;
-  a0.a0[7] = 8;
-  a0.a0[8] = 9;
-  a0.a0[9] = 10;
-  a0.a0[10] = 11;
-  a0.a0[11] = 12;
-  a0.a0[12] = 13;
-  a0.a0[13] = 14;
-  a0.a0[14] = 15;
-  a0.a0[15] = 16;
-  a0.a0[16] = 17;
-  a0.a0[17] = 18;
-  a0.a0[18] = 19;
-  a0.a0[19] = 20;
-  a0.a0[20] = 21;
-  a0.a0[21] = 22;
-  a0.a0[22] = 23;
-  a0.a0[23] = 24;
-  a0.a0[24] = 25;
-  a0.a0[25] = 26;
-  a0.a0[26] = 27;
-  a0.a0[27] = 28;
-  a0.a0[28] = 29;
-  a0.a0[29] = 30;
-  a0.a0[30] = 31;
-  a0.a0[31] = 32;
-  a0.a0[32] = 33;
-  a0.a0[33] = 34;
-  a0.a0[34] = 35;
-  a0.a0[35] = 36;
-  a0.a0[36] = 37;
-  a0.a0[37] = 38;
-  a0.a0[38] = 39;
-  a0.a0[39] = 40;
-  a0.a0[40] = 41;
-  a0.a0[41] = 42;
-  a0.a0[42] = 43;
-  a0.a0[43] = 44;
-  a0.a0[44] = 45;
-  a0.a0[45] = 46;
-  a0.a0[46] = 47;
-  a0.a0[47] = 48;
-  a0.a0[48] = 49;
-  a0.a0[49] = 50;
-  a0.a0[50] = 51;
-  a0.a0[51] = 52;
-  a0.a0[52] = 53;
-  a0.a0[53] = 54;
-  a0.a0[54] = 55;
-  a0.a0[55] = 56;
-  a0.a0[56] = 57;
-  a0.a0[57] = 58;
-  a0.a0[58] = 59;
-  a0.a0[59] = 60;
-  a0.a0[60] = 61;
-  a0.a0[61] = 62;
-  a0.a0[62] = 63;
-  a0.a0[63] = 64;
-  a0.a0[64] = 65;
-  a0.a0[65] = 66;
-  a0.a0[66] = 67;
-  a0.a0[67] = 68;
-  a0.a0[68] = 69;
-  a0.a0[69] = 70;
-  a0.a0[70] = 71;
-  a0.a0[71] = 72;
-  a0.a0[72] = 73;
-  a0.a0[73] = 74;
-  a0.a0[74] = 75;
-  a0.a0[75] = 76;
-  a0.a0[76] = 77;
-  a0.a0[77] = 78;
-  a0.a0[78] = 79;
-  a0.a0[79] = 80;
-  a0.a0[80] = 81;
-  a0.a0[81] = 82;
-  a0.a0[82] = 83;
-  a0.a0[83] = 84;
-  a0.a0[84] = 85;
-  a0.a0[85] = 86;
-  a0.a0[86] = 87;
-  a0.a0[87] = 88;
-  a0.a0[88] = 89;
-  a0.a0[89] = 90;
-  a0.a0[90] = 91;
-  a0.a0[91] = 92;
-  a0.a0[92] = 93;
-  a0.a0[93] = 94;
-  a0.a0[94] = 95;
-  a0.a0[95] = 96;
-  a0.a0[96] = 97;
-  a0.a0[97] = 98;
-  a0.a0[98] = 99;
-  a0.a0[99] = 100;
-
-  final result = passStructInlineArray100BytesLeaf(a0);
-
-  print("result = $result");
-
-  Expect.equals(5050, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passStructStruct16BytesHomogeneousFloat2x5Leaf =
-    ffiTestFunctions.lookupFunction<
-            Float Function(
-                StructStruct16BytesHomogeneousFloat2,
-                StructStruct16BytesHomogeneousFloat2,
-                StructStruct16BytesHomogeneousFloat2,
-                StructStruct16BytesHomogeneousFloat2,
-                StructStruct16BytesHomogeneousFloat2),
-            double Function(
-                StructStruct16BytesHomogeneousFloat2,
-                StructStruct16BytesHomogeneousFloat2,
-                StructStruct16BytesHomogeneousFloat2,
-                StructStruct16BytesHomogeneousFloat2,
-                StructStruct16BytesHomogeneousFloat2)>(
-        "PassStructStruct16BytesHomogeneousFloat2x5",
-        isLeaf: true);
-
-/// Arguments in FPU registers on arm hardfp and arm64.
-/// 5 struct arguments will exhaust available registers.
-void testPassStructStruct16BytesHomogeneousFloat2x5Leaf() {
-  final a0Pointer = calloc<StructStruct16BytesHomogeneousFloat2>();
-  final StructStruct16BytesHomogeneousFloat2 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<StructStruct16BytesHomogeneousFloat2>();
-  final StructStruct16BytesHomogeneousFloat2 a1 = a1Pointer.ref;
-  final a2Pointer = calloc<StructStruct16BytesHomogeneousFloat2>();
-  final StructStruct16BytesHomogeneousFloat2 a2 = a2Pointer.ref;
-  final a3Pointer = calloc<StructStruct16BytesHomogeneousFloat2>();
-  final StructStruct16BytesHomogeneousFloat2 a3 = a3Pointer.ref;
-  final a4Pointer = calloc<StructStruct16BytesHomogeneousFloat2>();
-  final StructStruct16BytesHomogeneousFloat2 a4 = a4Pointer.ref;
-
-  a0.a0.a0 = -1.0;
-  a0.a1[0].a0 = 2.0;
-  a0.a1[1].a0 = -3.0;
-  a0.a2 = 4.0;
-  a1.a0.a0 = -5.0;
-  a1.a1[0].a0 = 6.0;
-  a1.a1[1].a0 = -7.0;
-  a1.a2 = 8.0;
-  a2.a0.a0 = -9.0;
-  a2.a1[0].a0 = 10.0;
-  a2.a1[1].a0 = -11.0;
-  a2.a2 = 12.0;
-  a3.a0.a0 = -13.0;
-  a3.a1[0].a0 = 14.0;
-  a3.a1[1].a0 = -15.0;
-  a3.a2 = 16.0;
-  a4.a0.a0 = -17.0;
-  a4.a1[0].a0 = 18.0;
-  a4.a1[1].a0 = -19.0;
-  a4.a2 = 20.0;
-
-  final result =
-      passStructStruct16BytesHomogeneousFloat2x5Leaf(a0, a1, a2, a3, a4);
-
-  print("result = $result");
-
-  Expect.approxEquals(10.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-}
-
-final passStructStruct32BytesHomogeneousDouble2x5Leaf =
-    ffiTestFunctions.lookupFunction<
-            Double Function(
-                StructStruct32BytesHomogeneousDouble2,
-                StructStruct32BytesHomogeneousDouble2,
-                StructStruct32BytesHomogeneousDouble2,
-                StructStruct32BytesHomogeneousDouble2,
-                StructStruct32BytesHomogeneousDouble2),
-            double Function(
-                StructStruct32BytesHomogeneousDouble2,
-                StructStruct32BytesHomogeneousDouble2,
-                StructStruct32BytesHomogeneousDouble2,
-                StructStruct32BytesHomogeneousDouble2,
-                StructStruct32BytesHomogeneousDouble2)>(
-        "PassStructStruct32BytesHomogeneousDouble2x5",
-        isLeaf: true);
-
-/// Arguments in FPU registers on arm64.
-/// 5 struct arguments will exhaust available registers.
-void testPassStructStruct32BytesHomogeneousDouble2x5Leaf() {
-  final a0Pointer = calloc<StructStruct32BytesHomogeneousDouble2>();
-  final StructStruct32BytesHomogeneousDouble2 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<StructStruct32BytesHomogeneousDouble2>();
-  final StructStruct32BytesHomogeneousDouble2 a1 = a1Pointer.ref;
-  final a2Pointer = calloc<StructStruct32BytesHomogeneousDouble2>();
-  final StructStruct32BytesHomogeneousDouble2 a2 = a2Pointer.ref;
-  final a3Pointer = calloc<StructStruct32BytesHomogeneousDouble2>();
-  final StructStruct32BytesHomogeneousDouble2 a3 = a3Pointer.ref;
-  final a4Pointer = calloc<StructStruct32BytesHomogeneousDouble2>();
-  final StructStruct32BytesHomogeneousDouble2 a4 = a4Pointer.ref;
-
-  a0.a0.a0 = -1.0;
-  a0.a1[0].a0 = 2.0;
-  a0.a1[1].a0 = -3.0;
-  a0.a2 = 4.0;
-  a1.a0.a0 = -5.0;
-  a1.a1[0].a0 = 6.0;
-  a1.a1[1].a0 = -7.0;
-  a1.a2 = 8.0;
-  a2.a0.a0 = -9.0;
-  a2.a1[0].a0 = 10.0;
-  a2.a1[1].a0 = -11.0;
-  a2.a2 = 12.0;
-  a3.a0.a0 = -13.0;
-  a3.a1[0].a0 = 14.0;
-  a3.a1[1].a0 = -15.0;
-  a3.a2 = 16.0;
-  a4.a0.a0 = -17.0;
-  a4.a1[0].a0 = 18.0;
-  a4.a1[1].a0 = -19.0;
-  a4.a2 = 20.0;
-
-  final result =
-      passStructStruct32BytesHomogeneousDouble2x5Leaf(a0, a1, a2, a3, a4);
-
-  print("result = $result");
-
-  Expect.approxEquals(10.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-}
-
-final passStructStruct16BytesMixed3x10Leaf = ffiTestFunctions.lookupFunction<
-        Float Function(
-            StructStruct16BytesMixed3,
-            StructStruct16BytesMixed3,
-            StructStruct16BytesMixed3,
-            StructStruct16BytesMixed3,
-            StructStruct16BytesMixed3,
-            StructStruct16BytesMixed3,
-            StructStruct16BytesMixed3,
-            StructStruct16BytesMixed3,
-            StructStruct16BytesMixed3,
-            StructStruct16BytesMixed3),
-        double Function(
-            StructStruct16BytesMixed3,
-            StructStruct16BytesMixed3,
-            StructStruct16BytesMixed3,
-            StructStruct16BytesMixed3,
-            StructStruct16BytesMixed3,
-            StructStruct16BytesMixed3,
-            StructStruct16BytesMixed3,
-            StructStruct16BytesMixed3,
-            StructStruct16BytesMixed3,
-            StructStruct16BytesMixed3)>("PassStructStruct16BytesMixed3x10",
-    isLeaf: true);
-
-/// On x64, arguments are split over FP and int registers.
-/// On x64, it will exhaust the integer registers with the 6th argument.
-/// The rest goes on the stack.
-/// On arm, arguments are 4 byte aligned.
-void testPassStructStruct16BytesMixed3x10Leaf() {
-  final a0Pointer = calloc<StructStruct16BytesMixed3>();
-  final StructStruct16BytesMixed3 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<StructStruct16BytesMixed3>();
-  final StructStruct16BytesMixed3 a1 = a1Pointer.ref;
-  final a2Pointer = calloc<StructStruct16BytesMixed3>();
-  final StructStruct16BytesMixed3 a2 = a2Pointer.ref;
-  final a3Pointer = calloc<StructStruct16BytesMixed3>();
-  final StructStruct16BytesMixed3 a3 = a3Pointer.ref;
-  final a4Pointer = calloc<StructStruct16BytesMixed3>();
-  final StructStruct16BytesMixed3 a4 = a4Pointer.ref;
-  final a5Pointer = calloc<StructStruct16BytesMixed3>();
-  final StructStruct16BytesMixed3 a5 = a5Pointer.ref;
-  final a6Pointer = calloc<StructStruct16BytesMixed3>();
-  final StructStruct16BytesMixed3 a6 = a6Pointer.ref;
-  final a7Pointer = calloc<StructStruct16BytesMixed3>();
-  final StructStruct16BytesMixed3 a7 = a7Pointer.ref;
-  final a8Pointer = calloc<StructStruct16BytesMixed3>();
-  final StructStruct16BytesMixed3 a8 = a8Pointer.ref;
-  final a9Pointer = calloc<StructStruct16BytesMixed3>();
-  final StructStruct16BytesMixed3 a9 = a9Pointer.ref;
-
-  a0.a0.a0 = -1.0;
-  a0.a1[0].a0 = 2.0;
-  a0.a1[0].a1 = -3;
-  a0.a1[0].a2 = 4;
-  a0.a2[0] = -5;
-  a0.a2[1] = 6;
-  a1.a0.a0 = -7.0;
-  a1.a1[0].a0 = 8.0;
-  a1.a1[0].a1 = -9;
-  a1.a1[0].a2 = 10;
-  a1.a2[0] = -11;
-  a1.a2[1] = 12;
-  a2.a0.a0 = -13.0;
-  a2.a1[0].a0 = 14.0;
-  a2.a1[0].a1 = -15;
-  a2.a1[0].a2 = 16;
-  a2.a2[0] = -17;
-  a2.a2[1] = 18;
-  a3.a0.a0 = -19.0;
-  a3.a1[0].a0 = 20.0;
-  a3.a1[0].a1 = -21;
-  a3.a1[0].a2 = 22;
-  a3.a2[0] = -23;
-  a3.a2[1] = 24;
-  a4.a0.a0 = -25.0;
-  a4.a1[0].a0 = 26.0;
-  a4.a1[0].a1 = -27;
-  a4.a1[0].a2 = 28;
-  a4.a2[0] = -29;
-  a4.a2[1] = 30;
-  a5.a0.a0 = -31.0;
-  a5.a1[0].a0 = 32.0;
-  a5.a1[0].a1 = -33;
-  a5.a1[0].a2 = 34;
-  a5.a2[0] = -35;
-  a5.a2[1] = 36;
-  a6.a0.a0 = -37.0;
-  a6.a1[0].a0 = 38.0;
-  a6.a1[0].a1 = -39;
-  a6.a1[0].a2 = 40;
-  a6.a2[0] = -41;
-  a6.a2[1] = 42;
-  a7.a0.a0 = -43.0;
-  a7.a1[0].a0 = 44.0;
-  a7.a1[0].a1 = -45;
-  a7.a1[0].a2 = 46;
-  a7.a2[0] = -47;
-  a7.a2[1] = 48;
-  a8.a0.a0 = -49.0;
-  a8.a1[0].a0 = 50.0;
-  a8.a1[0].a1 = -51;
-  a8.a1[0].a2 = 52;
-  a8.a2[0] = -53;
-  a8.a2[1] = 54;
-  a9.a0.a0 = -55.0;
-  a9.a1[0].a0 = 56.0;
-  a9.a1[0].a1 = -57;
-  a9.a1[0].a2 = 58;
-  a9.a2[0] = -59;
-  a9.a2[1] = 60;
-
-  final result = passStructStruct16BytesMixed3x10Leaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.approxEquals(30.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passUint8Struct32BytesInlineArrayMultiDimensionalILeaf =
-    ffiTestFunctions.lookupFunction<
-            Uint32 Function(
-                Uint8,
-                Struct32BytesInlineArrayMultiDimensionalInt,
-                Uint8,
-                Struct8BytesInlineArrayMultiDimensionalInt,
-                Uint8,
-                Struct8BytesInlineArrayMultiDimensionalInt,
-                Uint8),
-            int Function(
-                int,
-                Struct32BytesInlineArrayMultiDimensionalInt,
-                int,
-                Struct8BytesInlineArrayMultiDimensionalInt,
-                int,
-                Struct8BytesInlineArrayMultiDimensionalInt,
-                int)>("PassUint8Struct32BytesInlineArrayMultiDimensionalI",
-        isLeaf: true);
-
-/// Test multi dimensional inline array struct as argument.
-void testPassUint8Struct32BytesInlineArrayMultiDimensionalILeaf() {
-  int a0;
-  final a1Pointer = calloc<Struct32BytesInlineArrayMultiDimensionalInt>();
-  final Struct32BytesInlineArrayMultiDimensionalInt a1 = a1Pointer.ref;
-  int a2;
-  final a3Pointer = calloc<Struct8BytesInlineArrayMultiDimensionalInt>();
-  final Struct8BytesInlineArrayMultiDimensionalInt a3 = a3Pointer.ref;
-  int a4;
-  final a5Pointer = calloc<Struct8BytesInlineArrayMultiDimensionalInt>();
-  final Struct8BytesInlineArrayMultiDimensionalInt a5 = a5Pointer.ref;
-  int a6;
-
-  a0 = 1;
-  a1.a0[0][0][0][0][0] = 2;
-  a1.a0[0][0][0][0][1] = 3;
-  a1.a0[0][0][0][1][0] = 4;
-  a1.a0[0][0][0][1][1] = 5;
-  a1.a0[0][0][1][0][0] = 6;
-  a1.a0[0][0][1][0][1] = 7;
-  a1.a0[0][0][1][1][0] = 8;
-  a1.a0[0][0][1][1][1] = 9;
-  a1.a0[0][1][0][0][0] = 10;
-  a1.a0[0][1][0][0][1] = 11;
-  a1.a0[0][1][0][1][0] = 12;
-  a1.a0[0][1][0][1][1] = 13;
-  a1.a0[0][1][1][0][0] = 14;
-  a1.a0[0][1][1][0][1] = 15;
-  a1.a0[0][1][1][1][0] = 16;
-  a1.a0[0][1][1][1][1] = 17;
-  a1.a0[1][0][0][0][0] = 18;
-  a1.a0[1][0][0][0][1] = 19;
-  a1.a0[1][0][0][1][0] = 20;
-  a1.a0[1][0][0][1][1] = 21;
-  a1.a0[1][0][1][0][0] = 22;
-  a1.a0[1][0][1][0][1] = 23;
-  a1.a0[1][0][1][1][0] = 24;
-  a1.a0[1][0][1][1][1] = 25;
-  a1.a0[1][1][0][0][0] = 26;
-  a1.a0[1][1][0][0][1] = 27;
-  a1.a0[1][1][0][1][0] = 28;
-  a1.a0[1][1][0][1][1] = 29;
-  a1.a0[1][1][1][0][0] = 30;
-  a1.a0[1][1][1][0][1] = 31;
-  a1.a0[1][1][1][1][0] = 32;
-  a1.a0[1][1][1][1][1] = 33;
-  a2 = 34;
-  a3.a0[0][0][0] = 35;
-  a3.a0[0][0][1] = 36;
-  a3.a0[0][1][0] = 37;
-  a3.a0[0][1][1] = 38;
-  a3.a0[1][0][0] = 39;
-  a3.a0[1][0][1] = 40;
-  a3.a0[1][1][0] = 41;
-  a3.a0[1][1][1] = 42;
-  a4 = 43;
-  a5.a0[0][0][0] = 44;
-  a5.a0[0][0][1] = 45;
-  a5.a0[0][1][0] = 46;
-  a5.a0[0][1][1] = 47;
-  a5.a0[1][0][0] = 48;
-  a5.a0[1][0][1] = 49;
-  a5.a0[1][1][0] = 50;
-  a5.a0[1][1][1] = 51;
-  a6 = 52;
-
-  final result = passUint8Struct32BytesInlineArrayMultiDimensionalILeaf(
-      a0, a1, a2, a3, a4, a5, a6);
-
-  print("result = $result");
-
-  Expect.equals(1378, result);
-
-  calloc.free(a1Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a5Pointer);
-}
-
-final passUint8Struct4BytesInlineArrayMultiDimensionalInLeaf =
-    ffiTestFunctions.lookupFunction<
-            Uint32 Function(
-                Uint8, Struct4BytesInlineArrayMultiDimensionalInt, Uint8),
-            int Function(int, Struct4BytesInlineArrayMultiDimensionalInt, int)>(
-        "PassUint8Struct4BytesInlineArrayMultiDimensionalIn",
-        isLeaf: true);
-
-/// Test struct in multi dimensional inline array.
-void testPassUint8Struct4BytesInlineArrayMultiDimensionalInLeaf() {
-  int a0;
-  final a1Pointer = calloc<Struct4BytesInlineArrayMultiDimensionalInt>();
-  final Struct4BytesInlineArrayMultiDimensionalInt a1 = a1Pointer.ref;
-  int a2;
-
-  a0 = 1;
-  a1.a0[0][0].a0 = 2;
-  a1.a0[0][1].a0 = -3;
-  a1.a0[1][0].a0 = 4;
-  a1.a0[1][1].a0 = -5;
-  a2 = 6;
-
-  final result =
-      passUint8Struct4BytesInlineArrayMultiDimensionalInLeaf(a0, a1, a2);
-
-  print("result = $result");
-
-  Expect.equals(5, result);
-
-  calloc.free(a1Pointer);
-}
-
-final passStruct3BytesPackedIntx10Leaf = ffiTestFunctions.lookupFunction<
-    Int64 Function(
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt),
-    int Function(
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt)>("PassStruct3BytesPackedIntx10", isLeaf: true);
-
-/// Small struct with mis-aligned member.
-void testPassStruct3BytesPackedIntx10Leaf() {
-  final a0Pointer = calloc<Struct3BytesPackedInt>();
-  final Struct3BytesPackedInt a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct3BytesPackedInt>();
-  final Struct3BytesPackedInt a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct3BytesPackedInt>();
-  final Struct3BytesPackedInt a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct3BytesPackedInt>();
-  final Struct3BytesPackedInt a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct3BytesPackedInt>();
-  final Struct3BytesPackedInt a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct3BytesPackedInt>();
-  final Struct3BytesPackedInt a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct3BytesPackedInt>();
-  final Struct3BytesPackedInt a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct3BytesPackedInt>();
-  final Struct3BytesPackedInt a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct3BytesPackedInt>();
-  final Struct3BytesPackedInt a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct3BytesPackedInt>();
-  final Struct3BytesPackedInt a9 = a9Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a1.a0 = -3;
-  a1.a1 = 4;
-  a2.a0 = -5;
-  a2.a1 = 6;
-  a3.a0 = -7;
-  a3.a1 = 8;
-  a4.a0 = -9;
-  a4.a1 = 10;
-  a5.a0 = -11;
-  a5.a1 = 12;
-  a6.a0 = -13;
-  a6.a1 = 14;
-  a7.a0 = -15;
-  a7.a1 = 16;
-  a8.a0 = -17;
-  a8.a1 = 18;
-  a9.a0 = -19;
-  a9.a1 = 20;
-
-  final result =
-      passStruct3BytesPackedIntx10Leaf(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(10, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct8BytesPackedIntx10Leaf = ffiTestFunctions.lookupFunction<
-    Int64 Function(
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt),
-    int Function(
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt)>("PassStruct8BytesPackedIntx10", isLeaf: true);
-
-/// Struct with mis-aligned member.
-void testPassStruct8BytesPackedIntx10Leaf() {
-  final a0Pointer = calloc<Struct8BytesPackedInt>();
-  final Struct8BytesPackedInt a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct8BytesPackedInt>();
-  final Struct8BytesPackedInt a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct8BytesPackedInt>();
-  final Struct8BytesPackedInt a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct8BytesPackedInt>();
-  final Struct8BytesPackedInt a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct8BytesPackedInt>();
-  final Struct8BytesPackedInt a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct8BytesPackedInt>();
-  final Struct8BytesPackedInt a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct8BytesPackedInt>();
-  final Struct8BytesPackedInt a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct8BytesPackedInt>();
-  final Struct8BytesPackedInt a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct8BytesPackedInt>();
-  final Struct8BytesPackedInt a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct8BytesPackedInt>();
-  final Struct8BytesPackedInt a9 = a9Pointer.ref;
-
-  a0.a0 = 1;
-  a0.a1 = 2;
-  a0.a2 = 3;
-  a0.a3 = 4;
-  a0.a4 = 5;
-  a1.a0 = 6;
-  a1.a1 = 7;
-  a1.a2 = 8;
-  a1.a3 = 9;
-  a1.a4 = 10;
-  a2.a0 = 11;
-  a2.a1 = 12;
-  a2.a2 = 13;
-  a2.a3 = 14;
-  a2.a4 = 15;
-  a3.a0 = 16;
-  a3.a1 = 17;
-  a3.a2 = 18;
-  a3.a3 = 19;
-  a3.a4 = 20;
-  a4.a0 = 21;
-  a4.a1 = 22;
-  a4.a2 = 23;
-  a4.a3 = 24;
-  a4.a4 = 25;
-  a5.a0 = 26;
-  a5.a1 = 27;
-  a5.a2 = 28;
-  a5.a3 = 29;
-  a5.a4 = 30;
-  a6.a0 = 31;
-  a6.a1 = 32;
-  a6.a2 = 33;
-  a6.a3 = 34;
-  a6.a4 = 35;
-  a7.a0 = 36;
-  a7.a1 = 37;
-  a7.a2 = 38;
-  a7.a3 = 39;
-  a7.a4 = 40;
-  a8.a0 = 41;
-  a8.a1 = 42;
-  a8.a2 = 43;
-  a8.a3 = 44;
-  a8.a4 = 45;
-  a9.a0 = 46;
-  a9.a1 = 47;
-  a9.a2 = 48;
-  a9.a3 = 49;
-  a9.a4 = 50;
-
-  final result =
-      passStruct8BytesPackedIntx10Leaf(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(1275, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct9BytesPackedMixedx10DoubleInt32x2Leaf =
-    ffiTestFunctions.lookupFunction<
-        Double Function(
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Double,
-            Int32,
-            Int32),
-        double Function(
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            double,
-            int,
-            int)>("PassStruct9BytesPackedMixedx10DoubleInt32x2", isLeaf: true);
-
-/// Struct with mis-aligned member.
-/// Tests backfilling of CPU and FPU registers.
-void testPassStruct9BytesPackedMixedx10DoubleInt32x2Leaf() {
-  final a0Pointer = calloc<Struct9BytesPackedMixed>();
-  final Struct9BytesPackedMixed a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct9BytesPackedMixed>();
-  final Struct9BytesPackedMixed a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct9BytesPackedMixed>();
-  final Struct9BytesPackedMixed a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct9BytesPackedMixed>();
-  final Struct9BytesPackedMixed a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct9BytesPackedMixed>();
-  final Struct9BytesPackedMixed a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct9BytesPackedMixed>();
-  final Struct9BytesPackedMixed a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct9BytesPackedMixed>();
-  final Struct9BytesPackedMixed a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct9BytesPackedMixed>();
-  final Struct9BytesPackedMixed a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct9BytesPackedMixed>();
-  final Struct9BytesPackedMixed a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct9BytesPackedMixed>();
-  final Struct9BytesPackedMixed a9 = a9Pointer.ref;
-  double a10;
-  int a11;
-  int a12;
-
-  a0.a0 = 1;
-  a0.a1 = 2.0;
-  a1.a0 = 3;
-  a1.a1 = 4.0;
-  a2.a0 = 5;
-  a2.a1 = 6.0;
-  a3.a0 = 7;
-  a3.a1 = 8.0;
-  a4.a0 = 9;
-  a4.a1 = 10.0;
-  a5.a0 = 11;
-  a5.a1 = 12.0;
-  a6.a0 = 13;
-  a6.a1 = 14.0;
-  a7.a0 = 15;
-  a7.a1 = 16.0;
-  a8.a0 = 17;
-  a8.a1 = 18.0;
-  a9.a0 = 19;
-  a9.a1 = 20.0;
-  a10 = -21.0;
-  a11 = 22;
-  a12 = -23;
-
-  final result = passStruct9BytesPackedMixedx10DoubleInt32x2Leaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12);
-
-  print("result = $result");
-
-  Expect.approxEquals(188.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct5BytesPackedMixedLeaf = ffiTestFunctions.lookupFunction<
-    Double Function(Struct5BytesPackedMixed),
-    double Function(
-        Struct5BytesPackedMixed)>("PassStruct5BytesPackedMixed", isLeaf: true);
-
-/// This packed struct happens to have only aligned members.
-void testPassStruct5BytesPackedMixedLeaf() {
-  final a0Pointer = calloc<Struct5BytesPackedMixed>();
-  final Struct5BytesPackedMixed a0 = a0Pointer.ref;
-
-  a0.a0 = -1.0;
-  a0.a1 = 2;
-
-  final result = passStruct5BytesPackedMixedLeaf(a0);
-
-  print("result = $result");
-
-  Expect.approxEquals(1.0, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passStructNestedAlignmentStruct5BytesPackedMixedLeaf =
-    ffiTestFunctions.lookupFunction<
-            Double Function(StructNestedAlignmentStruct5BytesPackedMixed),
-            double Function(StructNestedAlignmentStruct5BytesPackedMixed)>(
-        "PassStructNestedAlignmentStruct5BytesPackedMixed",
-        isLeaf: true);
-
-/// Check alignment of packed struct in non-packed struct.
-void testPassStructNestedAlignmentStruct5BytesPackedMixedLeaf() {
-  final a0Pointer = calloc<StructNestedAlignmentStruct5BytesPackedMixed>();
-  final StructNestedAlignmentStruct5BytesPackedMixed a0 = a0Pointer.ref;
-
-  a0.a0 = 1;
-  a0.a1.a0 = 2.0;
-  a0.a1.a1 = 3;
-
-  final result = passStructNestedAlignmentStruct5BytesPackedMixedLeaf(a0);
-
-  print("result = $result");
-
-  Expect.approxEquals(6.0, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passStruct6BytesInlineArrayIntLeaf = ffiTestFunctions.lookupFunction<
-        Double Function(Struct6BytesInlineArrayInt),
-        double Function(Struct6BytesInlineArrayInt)>(
-    "PassStruct6BytesInlineArrayInt",
-    isLeaf: true);
-
-/// Check alignment of packed struct array in non-packed struct.
-void testPassStruct6BytesInlineArrayIntLeaf() {
-  final a0Pointer = calloc<Struct6BytesInlineArrayInt>();
-  final Struct6BytesInlineArrayInt a0 = a0Pointer.ref;
-
-  a0.a0[0].a0 = -1;
-  a0.a0[0].a1 = 2;
-  a0.a0[1].a0 = -3;
-  a0.a0[1].a1 = 4;
-
-  final result = passStruct6BytesInlineArrayIntLeaf(a0);
-
-  print("result = $result");
-
-  Expect.approxEquals(2.0, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passStruct15BytesInlineArrayMixedLeaf = ffiTestFunctions.lookupFunction<
-        Double Function(Struct15BytesInlineArrayMixed),
-        double Function(Struct15BytesInlineArrayMixed)>(
-    "PassStruct15BytesInlineArrayMixed",
-    isLeaf: true);
-
-/// Check alignment of packed struct array in non-packed struct.
-void testPassStruct15BytesInlineArrayMixedLeaf() {
-  final a0Pointer = calloc<Struct15BytesInlineArrayMixed>();
-  final Struct15BytesInlineArrayMixed a0 = a0Pointer.ref;
-
-  a0.a0[0].a0 = -1.0;
-  a0.a0[0].a1 = 2;
-  a0.a0[1].a0 = -3.0;
-  a0.a0[1].a1 = 4;
-  a0.a0[2].a0 = -5.0;
-  a0.a0[2].a1 = 6;
-
-  final result = passStruct15BytesInlineArrayMixedLeaf(a0);
-
-  print("result = $result");
-
-  Expect.approxEquals(3.0, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passUnion4BytesMixedx10Leaf = ffiTestFunctions.lookupFunction<
-    Double Function(
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed),
-    double Function(
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed)>("PassUnion4BytesMixedx10", isLeaf: true);
-
-/// Check placement of mixed integer/float union.
-void testPassUnion4BytesMixedx10Leaf() {
-  final a0Pointer = calloc<Union4BytesMixed>();
-  final Union4BytesMixed a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Union4BytesMixed>();
-  final Union4BytesMixed a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Union4BytesMixed>();
-  final Union4BytesMixed a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Union4BytesMixed>();
-  final Union4BytesMixed a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Union4BytesMixed>();
-  final Union4BytesMixed a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Union4BytesMixed>();
-  final Union4BytesMixed a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Union4BytesMixed>();
-  final Union4BytesMixed a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Union4BytesMixed>();
-  final Union4BytesMixed a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Union4BytesMixed>();
-  final Union4BytesMixed a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Union4BytesMixed>();
-  final Union4BytesMixed a9 = a9Pointer.ref;
-
-  a0.a0 = 1;
-  a1.a0 = 2;
-  a2.a0 = 3;
-  a3.a0 = 4;
-  a4.a0 = 5;
-  a5.a0 = 6;
-  a6.a0 = 7;
-  a7.a0 = 8;
-  a8.a0 = 9;
-  a9.a0 = 10;
-
-  final result =
-      passUnion4BytesMixedx10Leaf(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.approxEquals(55.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passUnion8BytesNestedFloatx10Leaf = ffiTestFunctions.lookupFunction<
-    Double Function(
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat),
-    double Function(
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat)>("PassUnion8BytesNestedFloatx10", isLeaf: true);
-
-/// Check placement of mixed floats union.
-void testPassUnion8BytesNestedFloatx10Leaf() {
-  final a0Pointer = calloc<Union8BytesNestedFloat>();
-  final Union8BytesNestedFloat a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Union8BytesNestedFloat>();
-  final Union8BytesNestedFloat a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Union8BytesNestedFloat>();
-  final Union8BytesNestedFloat a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Union8BytesNestedFloat>();
-  final Union8BytesNestedFloat a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Union8BytesNestedFloat>();
-  final Union8BytesNestedFloat a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Union8BytesNestedFloat>();
-  final Union8BytesNestedFloat a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Union8BytesNestedFloat>();
-  final Union8BytesNestedFloat a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Union8BytesNestedFloat>();
-  final Union8BytesNestedFloat a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Union8BytesNestedFloat>();
-  final Union8BytesNestedFloat a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Union8BytesNestedFloat>();
-  final Union8BytesNestedFloat a9 = a9Pointer.ref;
-
-  a0.a0 = -1.0;
-  a1.a0 = 2.0;
-  a2.a0 = -3.0;
-  a3.a0 = 4.0;
-  a4.a0 = -5.0;
-  a5.a0 = 6.0;
-  a6.a0 = -7.0;
-  a7.a0 = 8.0;
-  a8.a0 = -9.0;
-  a9.a0 = 10.0;
-
-  final result =
-      passUnion8BytesNestedFloatx10Leaf(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.approxEquals(5.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passUnion9BytesNestedIntx10Leaf = ffiTestFunctions.lookupFunction<
-    Double Function(
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt),
-    double Function(
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt)>("PassUnion9BytesNestedIntx10", isLeaf: true);
-
-/// Mixed-size union argument.
-void testPassUnion9BytesNestedIntx10Leaf() {
-  final a0Pointer = calloc<Union9BytesNestedInt>();
-  final Union9BytesNestedInt a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Union9BytesNestedInt>();
-  final Union9BytesNestedInt a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Union9BytesNestedInt>();
-  final Union9BytesNestedInt a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Union9BytesNestedInt>();
-  final Union9BytesNestedInt a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Union9BytesNestedInt>();
-  final Union9BytesNestedInt a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Union9BytesNestedInt>();
-  final Union9BytesNestedInt a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Union9BytesNestedInt>();
-  final Union9BytesNestedInt a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Union9BytesNestedInt>();
-  final Union9BytesNestedInt a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Union9BytesNestedInt>();
-  final Union9BytesNestedInt a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Union9BytesNestedInt>();
-  final Union9BytesNestedInt a9 = a9Pointer.ref;
-
-  a0.a0.a0 = -1;
-  a0.a0.a1 = 2;
-  a0.a0.a2 = -3;
-  a1.a0.a0 = 4;
-  a1.a0.a1 = -5;
-  a1.a0.a2 = 6;
-  a2.a0.a0 = -7;
-  a2.a0.a1 = 8;
-  a2.a0.a2 = -9;
-  a3.a0.a0 = 10;
-  a3.a0.a1 = -11;
-  a3.a0.a2 = 12;
-  a4.a0.a0 = -13;
-  a4.a0.a1 = 14;
-  a4.a0.a2 = -15;
-  a5.a0.a0 = 16;
-  a5.a0.a1 = -17;
-  a5.a0.a2 = 18;
-  a6.a0.a0 = -19;
-  a6.a0.a1 = 20;
-  a6.a0.a2 = -21;
-  a7.a0.a0 = 22;
-  a7.a0.a1 = -23;
-  a7.a0.a2 = 24;
-  a8.a0.a0 = -25;
-  a8.a0.a1 = 26;
-  a8.a0.a2 = -27;
-  a9.a0.a0 = 28;
-  a9.a0.a1 = -29;
-  a9.a0.a2 = 30;
-
-  final result =
-      passUnion9BytesNestedIntx10Leaf(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.approxEquals(15.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passUnion16BytesNestedInlineArrayFloatx10Leaf =
-    ffiTestFunctions.lookupFunction<
-            Double Function(
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat),
-            double Function(
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat)>(
-        "PassUnion16BytesNestedInlineArrayFloatx10",
-        isLeaf: true);
-
-/// Union with homogenous floats.
-void testPassUnion16BytesNestedInlineArrayFloatx10Leaf() {
-  final a0Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
-  final Union16BytesNestedInlineArrayFloat a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
-  final Union16BytesNestedInlineArrayFloat a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
-  final Union16BytesNestedInlineArrayFloat a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
-  final Union16BytesNestedInlineArrayFloat a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
-  final Union16BytesNestedInlineArrayFloat a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
-  final Union16BytesNestedInlineArrayFloat a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
-  final Union16BytesNestedInlineArrayFloat a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
-  final Union16BytesNestedInlineArrayFloat a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
-  final Union16BytesNestedInlineArrayFloat a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
-  final Union16BytesNestedInlineArrayFloat a9 = a9Pointer.ref;
-
-  a0.a0[0] = -1.0;
-  a0.a0[1] = 2.0;
-  a0.a0[2] = -3.0;
-  a0.a0[3] = 4.0;
-  a1.a0[0] = -5.0;
-  a1.a0[1] = 6.0;
-  a1.a0[2] = -7.0;
-  a1.a0[3] = 8.0;
-  a2.a0[0] = -9.0;
-  a2.a0[1] = 10.0;
-  a2.a0[2] = -11.0;
-  a2.a0[3] = 12.0;
-  a3.a0[0] = -13.0;
-  a3.a0[1] = 14.0;
-  a3.a0[2] = -15.0;
-  a3.a0[3] = 16.0;
-  a4.a0[0] = -17.0;
-  a4.a0[1] = 18.0;
-  a4.a0[2] = -19.0;
-  a4.a0[3] = 20.0;
-  a5.a0[0] = -21.0;
-  a5.a0[1] = 22.0;
-  a5.a0[2] = -23.0;
-  a5.a0[3] = 24.0;
-  a6.a0[0] = -25.0;
-  a6.a0[1] = 26.0;
-  a6.a0[2] = -27.0;
-  a6.a0[3] = 28.0;
-  a7.a0[0] = -29.0;
-  a7.a0[1] = 30.0;
-  a7.a0[2] = -31.0;
-  a7.a0[3] = 32.0;
-  a8.a0[0] = -33.0;
-  a8.a0[1] = 34.0;
-  a8.a0[2] = -35.0;
-  a8.a0[3] = 36.0;
-  a9.a0[0] = -37.0;
-  a9.a0[1] = 38.0;
-  a9.a0[2] = -39.0;
-  a9.a0[3] = 40.0;
-
-  final result = passUnion16BytesNestedInlineArrayFloatx10Leaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.approxEquals(20.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passUnion16BytesNestedFloatx10Leaf = ffiTestFunctions.lookupFunction<
-        Double Function(
-            Union16BytesNestedFloat,
-            Union16BytesNestedFloat,
-            Union16BytesNestedFloat,
-            Union16BytesNestedFloat,
-            Union16BytesNestedFloat,
-            Union16BytesNestedFloat,
-            Union16BytesNestedFloat,
-            Union16BytesNestedFloat,
-            Union16BytesNestedFloat,
-            Union16BytesNestedFloat),
-        double Function(
-            Union16BytesNestedFloat,
-            Union16BytesNestedFloat,
-            Union16BytesNestedFloat,
-            Union16BytesNestedFloat,
-            Union16BytesNestedFloat,
-            Union16BytesNestedFloat,
-            Union16BytesNestedFloat,
-            Union16BytesNestedFloat,
-            Union16BytesNestedFloat,
-            Union16BytesNestedFloat)>("PassUnion16BytesNestedFloatx10",
-    isLeaf: true);
-
-/// Union with homogenous floats.
-void testPassUnion16BytesNestedFloatx10Leaf() {
-  final a0Pointer = calloc<Union16BytesNestedFloat>();
-  final Union16BytesNestedFloat a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Union16BytesNestedFloat>();
-  final Union16BytesNestedFloat a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Union16BytesNestedFloat>();
-  final Union16BytesNestedFloat a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Union16BytesNestedFloat>();
-  final Union16BytesNestedFloat a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Union16BytesNestedFloat>();
-  final Union16BytesNestedFloat a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Union16BytesNestedFloat>();
-  final Union16BytesNestedFloat a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Union16BytesNestedFloat>();
-  final Union16BytesNestedFloat a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Union16BytesNestedFloat>();
-  final Union16BytesNestedFloat a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Union16BytesNestedFloat>();
-  final Union16BytesNestedFloat a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Union16BytesNestedFloat>();
-  final Union16BytesNestedFloat a9 = a9Pointer.ref;
-
-  a0.a0.a0 = -1.0;
-  a0.a0.a1 = 2.0;
-  a1.a0.a0 = -3.0;
-  a1.a0.a1 = 4.0;
-  a2.a0.a0 = -5.0;
-  a2.a0.a1 = 6.0;
-  a3.a0.a0 = -7.0;
-  a3.a0.a1 = 8.0;
-  a4.a0.a0 = -9.0;
-  a4.a0.a1 = 10.0;
-  a5.a0.a0 = -11.0;
-  a5.a0.a1 = 12.0;
-  a6.a0.a0 = -13.0;
-  a6.a0.a1 = 14.0;
-  a7.a0.a0 = -15.0;
-  a7.a0.a1 = 16.0;
-  a8.a0.a0 = -17.0;
-  a8.a0.a1 = 18.0;
-  a9.a0.a0 = -19.0;
-  a9.a0.a1 = 20.0;
-
-  final result = passUnion16BytesNestedFloatx10Leaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.approxEquals(10.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passUint8Boolx9Struct10BytesHomogeneousBoolBoolLeaf =
-    ffiTestFunctions
-        .lookupFunction<
-                Int32 Function(Uint8, Bool, Bool, Bool, Bool, Bool, Bool, Bool,
-                    Bool, Bool, Struct10BytesHomogeneousBool, Bool),
-                int Function(
-                    int,
-                    bool,
-                    bool,
-                    bool,
-                    bool,
-                    bool,
-                    bool,
-                    bool,
-                    bool,
-                    bool,
-                    Struct10BytesHomogeneousBool,
-                    bool)>("PassUint8Boolx9Struct10BytesHomogeneousBoolBool",
-            isLeaf: true);
-
-/// Passing bools and a struct with bools.
-/// Exhausts the registers to test bools and the bool struct alignment on the
-/// stack.
-void testPassUint8Boolx9Struct10BytesHomogeneousBoolBoolLeaf() {
-  int a0;
-  bool a1;
-  bool a2;
-  bool a3;
-  bool a4;
-  bool a5;
-  bool a6;
-  bool a7;
-  bool a8;
-  bool a9;
-  final a10Pointer = calloc<Struct10BytesHomogeneousBool>();
-  final Struct10BytesHomogeneousBool a10 = a10Pointer.ref;
-  bool a11;
-
-  a0 = 1;
-  a1 = false;
-  a2 = true;
-  a3 = false;
-  a4 = true;
-  a5 = false;
-  a6 = true;
-  a7 = false;
-  a8 = true;
-  a9 = false;
-  a10.a0 = true;
-  a10.a1 = false;
-  a10.a2 = true;
-  a10.a3 = false;
-  a10.a4 = true;
-  a10.a5 = false;
-  a10.a6 = true;
-  a10.a7 = false;
-  a10.a8 = true;
-  a10.a9 = false;
-  a11 = true;
-
-  final result = passUint8Boolx9Struct10BytesHomogeneousBoolBoolLeaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11);
-
-  print("result = $result");
-
-  Expect.equals(11, result);
-
-  calloc.free(a10Pointer);
-}
-
-final passUint8Boolx9Struct10BytesInlineArrayBoolBoolLeaf =
-    ffiTestFunctions
-        .lookupFunction<
-                Int32 Function(Uint8, Bool, Bool, Bool, Bool, Bool, Bool, Bool,
-                    Bool, Bool, Struct10BytesInlineArrayBool, Bool),
-                int Function(
-                    int,
-                    bool,
-                    bool,
-                    bool,
-                    bool,
-                    bool,
-                    bool,
-                    bool,
-                    bool,
-                    bool,
-                    Struct10BytesInlineArrayBool,
-                    bool)>("PassUint8Boolx9Struct10BytesInlineArrayBoolBool",
-            isLeaf: true);
-
-/// Passing bools and a struct with bools.
-/// Exhausts the registers to test bools and the bool struct alignment on the
-/// stack.
-void testPassUint8Boolx9Struct10BytesInlineArrayBoolBoolLeaf() {
-  int a0;
-  bool a1;
-  bool a2;
-  bool a3;
-  bool a4;
-  bool a5;
-  bool a6;
-  bool a7;
-  bool a8;
-  bool a9;
-  final a10Pointer = calloc<Struct10BytesInlineArrayBool>();
-  final Struct10BytesInlineArrayBool a10 = a10Pointer.ref;
-  bool a11;
-
-  a0 = 1;
-  a1 = false;
-  a2 = true;
-  a3 = false;
-  a4 = true;
-  a5 = false;
-  a6 = true;
-  a7 = false;
-  a8 = true;
-  a9 = false;
-  a10.a0[0] = true;
-  a10.a0[1] = false;
-  a10.a0[2] = true;
-  a10.a0[3] = false;
-  a10.a0[4] = true;
-  a10.a0[5] = false;
-  a10.a0[6] = true;
-  a10.a0[7] = false;
-  a10.a0[8] = true;
-  a10.a0[9] = false;
-  a11 = true;
-
-  final result = passUint8Boolx9Struct10BytesInlineArrayBoolBoolLeaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11);
-
-  print("result = $result");
-
-  Expect.equals(11, result);
-
-  calloc.free(a10Pointer);
-}
-
-final passUint8Struct1ByteBoolLeaf = ffiTestFunctions.lookupFunction<
-    Bool Function(Uint8, Struct1ByteBool),
-    bool Function(
-        int, Struct1ByteBool)>("PassUint8Struct1ByteBool", isLeaf: true);
-
-/// Returning a bool.
-void testPassUint8Struct1ByteBoolLeaf() {
-  int a0;
-  final a1Pointer = calloc<Struct1ByteBool>();
-  final Struct1ByteBool a1 = a1Pointer.ref;
-
-  a0 = 1;
-  a1.a0 = false;
-
-  final result = passUint8Struct1ByteBoolLeaf(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(1 % 2 != 0, result);
-
-  calloc.free(a1Pointer);
-}
-
-final passWCharStructInlineArrayIntUintPtrx2LongUnsignedLeaf = ffiTestFunctions
-    .lookupFunction<
-            WChar Function(WChar, StructInlineArrayInt, UintPtr, UintPtr, Long,
-                UnsignedLong),
-            int Function(int, StructInlineArrayInt, int, int, int, int)>(
-        "PassWCharStructInlineArrayIntUintPtrx2LongUnsigned",
-        isLeaf: true);
-
-/// Returning a wchar.
-void testPassWCharStructInlineArrayIntUintPtrx2LongUnsignedLeaf() {
-  int a0;
-  final a1Pointer = calloc<StructInlineArrayInt>();
-  final StructInlineArrayInt a1 = a1Pointer.ref;
-  int a2;
-  int a3;
-  int a4;
-  int a5;
-
-  a0 = 1;
-  a1.a0[0] = 2;
-  a1.a0[1] = 3;
-  a1.a0[2] = 4;
-  a1.a0[3] = 5;
-  a1.a0[4] = 6;
-  a1.a0[5] = 7;
-  a1.a0[6] = 8;
-  a1.a0[7] = 9;
-  a1.a0[8] = 10;
-  a1.a0[9] = 11;
-  a2 = 12;
-  a3 = 13;
-  a4 = 14;
-  a5 = 15;
-
-  final result = passWCharStructInlineArrayIntUintPtrx2LongUnsignedLeaf(
-      a0, a1, a2, a3, a4, a5);
-
-  print("result = $result");
-
-  Expect.equals(120, result);
-
-  calloc.free(a1Pointer);
-}
-
-final passInt64x7Struct12BytesHomogeneousInt32Leaf =
-    ffiTestFunctions.lookupFunction<
-            Int64 Function(Int64, Int64, Int64, Int64, Int64, Int64, Int64,
-                Struct12BytesHomogeneousInt32),
-            int Function(int, int, int, int, int, int, int,
-                Struct12BytesHomogeneousInt32)>(
-        "PassInt64x7Struct12BytesHomogeneousInt32",
-        isLeaf: true);
-
-/// Struct stradles last argument register
-void testPassInt64x7Struct12BytesHomogeneousInt32Leaf() {
-  int a0;
-  int a1;
-  int a2;
-  int a3;
-  int a4;
-  int a5;
-  int a6;
-  final a7Pointer = calloc<Struct12BytesHomogeneousInt32>();
-  final Struct12BytesHomogeneousInt32 a7 = a7Pointer.ref;
-
-  a0 = -1;
-  a1 = 2;
-  a2 = -3;
-  a3 = 4;
-  a4 = -5;
-  a5 = 6;
-  a6 = -7;
-  a7.a0 = 8;
-  a7.a1 = -9;
-  a7.a2 = 10;
-
-  final result = passInt64x7Struct12BytesHomogeneousInt32Leaf(
-      a0, a1, a2, a3, a4, a5, a6, a7);
-
-  print("result = $result");
-
-  Expect.equals(5, result);
-
-  calloc.free(a7Pointer);
-}
diff --git a/tests/ffi_2/function_structs_by_value_generated_args_test.dart b/tests/ffi_2/function_structs_by_value_generated_args_test.dart
deleted file mode 100644
index 999ea7ddaa4..00000000000
--- a/tests/ffi_2/function_structs_by_value_generated_args_test.dart
+++ /dev/null
@@ -1,5423 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// This file has been automatically generated. Please do not edit it manually.
-// Generated by tests/ffi/generator/structs_by_value_tests_generator.dart.
-//
-// SharedObjects=ffi_test_functions
-// VMOptions=
-// VMOptions=--deterministic --optimization-counter-threshold=90
-// VMOptions=--use-slow-path
-// VMOptions=--use-slow-path --stacktrace-every=100
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
-
-import 'dylib_utils.dart';
-
-// Reuse the compound classes.
-import 'function_structs_by_value_generated_compounds.dart';
-
-final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-void main() {
-  for (int i = 0; i < 100; ++i) {
-    testPassStruct1ByteIntx10();
-    testPassStruct3BytesHomogeneousUint8x10();
-    testPassStruct3BytesInt2ByteAlignedx10();
-    testPassStruct4BytesHomogeneousInt16x10();
-    testPassStruct7BytesHomogeneousUint8x10();
-    testPassStruct7BytesInt4ByteAlignedx10();
-    testPassStruct8BytesIntx10();
-    testPassStruct8BytesHomogeneousFloatx10();
-    testPassStruct8BytesMixedx10();
-    testPassStruct9BytesHomogeneousUint8x10();
-    testPassStruct9BytesInt4Or8ByteAlignedx10();
-    testPassStruct12BytesHomogeneousFloatx6();
-    testPassStruct16BytesHomogeneousFloatx5();
-    testPassStruct16BytesMixedx10();
-    testPassStruct16BytesMixed2x10();
-    testPassStruct17BytesIntx10();
-    testPassStruct19BytesHomogeneousUint8x10();
-    testPassStruct20BytesHomogeneousInt32x10();
-    testPassStruct20BytesHomogeneousFloat();
-    testPassStruct32BytesHomogeneousDoublex5();
-    testPassStruct40BytesHomogeneousDouble();
-    testPassStruct1024BytesHomogeneousUint64();
-    testPassFloatStruct16BytesHomogeneousFloatFloatStruct1();
-    testPassFloatStruct32BytesHomogeneousDoubleFloatStruct();
-    testPassInt8Struct16BytesMixedInt8Struct16BytesMixedIn();
-    testPassDoublex6Struct16BytesMixedx4Int32();
-    testPassInt32x4Struct16BytesMixedx4Double();
-    testPassStruct40BytesHomogeneousDoubleStruct4BytesHomo();
-    testPassInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int();
-    testPassStructAlignmentInt16();
-    testPassStructAlignmentInt32();
-    testPassStructAlignmentInt64();
-    testPassStruct8BytesNestedIntx10();
-    testPassStruct8BytesNestedFloatx10();
-    testPassStruct8BytesNestedFloat2x10();
-    testPassStruct8BytesNestedMixedx10();
-    testPassStruct16BytesNestedIntx2();
-    testPassStruct32BytesNestedIntx2();
-    testPassStructNestedIntStructAlignmentInt16();
-    testPassStructNestedIntStructAlignmentInt32();
-    testPassStructNestedIntStructAlignmentInt64();
-    testPassStructNestedIrregularEvenBiggerx4();
-    testPassStruct8BytesInlineArrayIntx4();
-    testPassStructInlineArrayIrregularx4();
-    testPassStructInlineArray100Bytes();
-    testPassStructStruct16BytesHomogeneousFloat2x5();
-    testPassStructStruct32BytesHomogeneousDouble2x5();
-    testPassStructStruct16BytesMixed3x10();
-    testPassUint8Struct32BytesInlineArrayMultiDimensionalI();
-    testPassUint8Struct4BytesInlineArrayMultiDimensionalIn();
-    testPassStruct3BytesPackedIntx10();
-    testPassStruct8BytesPackedIntx10();
-    testPassStruct9BytesPackedMixedx10DoubleInt32x2();
-    testPassStruct5BytesPackedMixed();
-    testPassStructNestedAlignmentStruct5BytesPackedMixed();
-    testPassStruct6BytesInlineArrayInt();
-    testPassStruct15BytesInlineArrayMixed();
-    testPassUnion4BytesMixedx10();
-    testPassUnion8BytesNestedFloatx10();
-    testPassUnion9BytesNestedIntx10();
-    testPassUnion16BytesNestedInlineArrayFloatx10();
-    testPassUnion16BytesNestedFloatx10();
-    testPassUint8Boolx9Struct10BytesHomogeneousBoolBool();
-    testPassUint8Boolx9Struct10BytesInlineArrayBoolBool();
-    testPassUint8Struct1ByteBool();
-    testPassWCharStructInlineArrayIntUintPtrx2LongUnsigned();
-    testPassInt64x7Struct12BytesHomogeneousInt32();
-  }
-}
-
-final passStruct1ByteIntx10 = ffiTestFunctions.lookupFunction<
-    Int64 Function(
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt),
-    int Function(
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt,
-        Struct1ByteInt)>("PassStruct1ByteIntx10");
-
-/// Smallest struct with data.
-/// 10 struct arguments will exhaust available registers.
-void testPassStruct1ByteIntx10() {
-  final a0Pointer = calloc<Struct1ByteInt>();
-  final Struct1ByteInt a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct1ByteInt>();
-  final Struct1ByteInt a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct1ByteInt>();
-  final Struct1ByteInt a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct1ByteInt>();
-  final Struct1ByteInt a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct1ByteInt>();
-  final Struct1ByteInt a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct1ByteInt>();
-  final Struct1ByteInt a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct1ByteInt>();
-  final Struct1ByteInt a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct1ByteInt>();
-  final Struct1ByteInt a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct1ByteInt>();
-  final Struct1ByteInt a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct1ByteInt>();
-  final Struct1ByteInt a9 = a9Pointer.ref;
-
-  a0.a0 = -1;
-  a1.a0 = 2;
-  a2.a0 = -3;
-  a3.a0 = 4;
-  a4.a0 = -5;
-  a5.a0 = 6;
-  a6.a0 = -7;
-  a7.a0 = 8;
-  a8.a0 = -9;
-  a9.a0 = 10;
-
-  final result = passStruct1ByteIntx10(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(5, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct3BytesHomogeneousUint8x10 = ffiTestFunctions.lookupFunction<
-    Int64 Function(
-        Struct3BytesHomogeneousUint8,
-        Struct3BytesHomogeneousUint8,
-        Struct3BytesHomogeneousUint8,
-        Struct3BytesHomogeneousUint8,
-        Struct3BytesHomogeneousUint8,
-        Struct3BytesHomogeneousUint8,
-        Struct3BytesHomogeneousUint8,
-        Struct3BytesHomogeneousUint8,
-        Struct3BytesHomogeneousUint8,
-        Struct3BytesHomogeneousUint8),
-    int Function(
-        Struct3BytesHomogeneousUint8,
-        Struct3BytesHomogeneousUint8,
-        Struct3BytesHomogeneousUint8,
-        Struct3BytesHomogeneousUint8,
-        Struct3BytesHomogeneousUint8,
-        Struct3BytesHomogeneousUint8,
-        Struct3BytesHomogeneousUint8,
-        Struct3BytesHomogeneousUint8,
-        Struct3BytesHomogeneousUint8,
-        Struct3BytesHomogeneousUint8)>("PassStruct3BytesHomogeneousUint8x10");
-
-/// Not a multiple of word size, not a power of two.
-/// 10 struct arguments will exhaust available registers.
-void testPassStruct3BytesHomogeneousUint8x10() {
-  final a0Pointer = calloc<Struct3BytesHomogeneousUint8>();
-  final Struct3BytesHomogeneousUint8 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct3BytesHomogeneousUint8>();
-  final Struct3BytesHomogeneousUint8 a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct3BytesHomogeneousUint8>();
-  final Struct3BytesHomogeneousUint8 a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct3BytesHomogeneousUint8>();
-  final Struct3BytesHomogeneousUint8 a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct3BytesHomogeneousUint8>();
-  final Struct3BytesHomogeneousUint8 a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct3BytesHomogeneousUint8>();
-  final Struct3BytesHomogeneousUint8 a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct3BytesHomogeneousUint8>();
-  final Struct3BytesHomogeneousUint8 a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct3BytesHomogeneousUint8>();
-  final Struct3BytesHomogeneousUint8 a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct3BytesHomogeneousUint8>();
-  final Struct3BytesHomogeneousUint8 a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct3BytesHomogeneousUint8>();
-  final Struct3BytesHomogeneousUint8 a9 = a9Pointer.ref;
-
-  a0.a0 = 1;
-  a0.a1 = 2;
-  a0.a2 = 3;
-  a1.a0 = 4;
-  a1.a1 = 5;
-  a1.a2 = 6;
-  a2.a0 = 7;
-  a2.a1 = 8;
-  a2.a2 = 9;
-  a3.a0 = 10;
-  a3.a1 = 11;
-  a3.a2 = 12;
-  a4.a0 = 13;
-  a4.a1 = 14;
-  a4.a2 = 15;
-  a5.a0 = 16;
-  a5.a1 = 17;
-  a5.a2 = 18;
-  a6.a0 = 19;
-  a6.a1 = 20;
-  a6.a2 = 21;
-  a7.a0 = 22;
-  a7.a1 = 23;
-  a7.a2 = 24;
-  a8.a0 = 25;
-  a8.a1 = 26;
-  a8.a2 = 27;
-  a9.a0 = 28;
-  a9.a1 = 29;
-  a9.a2 = 30;
-
-  final result = passStruct3BytesHomogeneousUint8x10(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(465, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct3BytesInt2ByteAlignedx10 = ffiTestFunctions.lookupFunction<
-    Int64 Function(
-        Struct3BytesInt2ByteAligned,
-        Struct3BytesInt2ByteAligned,
-        Struct3BytesInt2ByteAligned,
-        Struct3BytesInt2ByteAligned,
-        Struct3BytesInt2ByteAligned,
-        Struct3BytesInt2ByteAligned,
-        Struct3BytesInt2ByteAligned,
-        Struct3BytesInt2ByteAligned,
-        Struct3BytesInt2ByteAligned,
-        Struct3BytesInt2ByteAligned),
-    int Function(
-        Struct3BytesInt2ByteAligned,
-        Struct3BytesInt2ByteAligned,
-        Struct3BytesInt2ByteAligned,
-        Struct3BytesInt2ByteAligned,
-        Struct3BytesInt2ByteAligned,
-        Struct3BytesInt2ByteAligned,
-        Struct3BytesInt2ByteAligned,
-        Struct3BytesInt2ByteAligned,
-        Struct3BytesInt2ByteAligned,
-        Struct3BytesInt2ByteAligned)>("PassStruct3BytesInt2ByteAlignedx10");
-
-/// Not a multiple of word size, not a power of two.
-/// With alignment rules taken into account size is 4 bytes.
-/// 10 struct arguments will exhaust available registers.
-void testPassStruct3BytesInt2ByteAlignedx10() {
-  final a0Pointer = calloc<Struct3BytesInt2ByteAligned>();
-  final Struct3BytesInt2ByteAligned a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct3BytesInt2ByteAligned>();
-  final Struct3BytesInt2ByteAligned a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct3BytesInt2ByteAligned>();
-  final Struct3BytesInt2ByteAligned a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct3BytesInt2ByteAligned>();
-  final Struct3BytesInt2ByteAligned a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct3BytesInt2ByteAligned>();
-  final Struct3BytesInt2ByteAligned a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct3BytesInt2ByteAligned>();
-  final Struct3BytesInt2ByteAligned a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct3BytesInt2ByteAligned>();
-  final Struct3BytesInt2ByteAligned a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct3BytesInt2ByteAligned>();
-  final Struct3BytesInt2ByteAligned a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct3BytesInt2ByteAligned>();
-  final Struct3BytesInt2ByteAligned a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct3BytesInt2ByteAligned>();
-  final Struct3BytesInt2ByteAligned a9 = a9Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a1.a0 = -3;
-  a1.a1 = 4;
-  a2.a0 = -5;
-  a2.a1 = 6;
-  a3.a0 = -7;
-  a3.a1 = 8;
-  a4.a0 = -9;
-  a4.a1 = 10;
-  a5.a0 = -11;
-  a5.a1 = 12;
-  a6.a0 = -13;
-  a6.a1 = 14;
-  a7.a0 = -15;
-  a7.a1 = 16;
-  a8.a0 = -17;
-  a8.a1 = 18;
-  a9.a0 = -19;
-  a9.a1 = 20;
-
-  final result = passStruct3BytesInt2ByteAlignedx10(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(10, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct4BytesHomogeneousInt16x10 = ffiTestFunctions.lookupFunction<
-    Int64 Function(
-        Struct4BytesHomogeneousInt16,
-        Struct4BytesHomogeneousInt16,
-        Struct4BytesHomogeneousInt16,
-        Struct4BytesHomogeneousInt16,
-        Struct4BytesHomogeneousInt16,
-        Struct4BytesHomogeneousInt16,
-        Struct4BytesHomogeneousInt16,
-        Struct4BytesHomogeneousInt16,
-        Struct4BytesHomogeneousInt16,
-        Struct4BytesHomogeneousInt16),
-    int Function(
-        Struct4BytesHomogeneousInt16,
-        Struct4BytesHomogeneousInt16,
-        Struct4BytesHomogeneousInt16,
-        Struct4BytesHomogeneousInt16,
-        Struct4BytesHomogeneousInt16,
-        Struct4BytesHomogeneousInt16,
-        Struct4BytesHomogeneousInt16,
-        Struct4BytesHomogeneousInt16,
-        Struct4BytesHomogeneousInt16,
-        Struct4BytesHomogeneousInt16)>("PassStruct4BytesHomogeneousInt16x10");
-
-/// Exactly word size on 32-bit architectures.
-/// 10 struct arguments will exhaust available registers.
-void testPassStruct4BytesHomogeneousInt16x10() {
-  final a0Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a9 = a9Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a1.a0 = -3;
-  a1.a1 = 4;
-  a2.a0 = -5;
-  a2.a1 = 6;
-  a3.a0 = -7;
-  a3.a1 = 8;
-  a4.a0 = -9;
-  a4.a1 = 10;
-  a5.a0 = -11;
-  a5.a1 = 12;
-  a6.a0 = -13;
-  a6.a1 = 14;
-  a7.a0 = -15;
-  a7.a1 = 16;
-  a8.a0 = -17;
-  a8.a1 = 18;
-  a9.a0 = -19;
-  a9.a1 = 20;
-
-  final result = passStruct4BytesHomogeneousInt16x10(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(10, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct7BytesHomogeneousUint8x10 = ffiTestFunctions.lookupFunction<
-    Int64 Function(
-        Struct7BytesHomogeneousUint8,
-        Struct7BytesHomogeneousUint8,
-        Struct7BytesHomogeneousUint8,
-        Struct7BytesHomogeneousUint8,
-        Struct7BytesHomogeneousUint8,
-        Struct7BytesHomogeneousUint8,
-        Struct7BytesHomogeneousUint8,
-        Struct7BytesHomogeneousUint8,
-        Struct7BytesHomogeneousUint8,
-        Struct7BytesHomogeneousUint8),
-    int Function(
-        Struct7BytesHomogeneousUint8,
-        Struct7BytesHomogeneousUint8,
-        Struct7BytesHomogeneousUint8,
-        Struct7BytesHomogeneousUint8,
-        Struct7BytesHomogeneousUint8,
-        Struct7BytesHomogeneousUint8,
-        Struct7BytesHomogeneousUint8,
-        Struct7BytesHomogeneousUint8,
-        Struct7BytesHomogeneousUint8,
-        Struct7BytesHomogeneousUint8)>("PassStruct7BytesHomogeneousUint8x10");
-
-/// Sub word size on 64 bit architectures.
-/// 10 struct arguments will exhaust available registers.
-void testPassStruct7BytesHomogeneousUint8x10() {
-  final a0Pointer = calloc<Struct7BytesHomogeneousUint8>();
-  final Struct7BytesHomogeneousUint8 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct7BytesHomogeneousUint8>();
-  final Struct7BytesHomogeneousUint8 a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct7BytesHomogeneousUint8>();
-  final Struct7BytesHomogeneousUint8 a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct7BytesHomogeneousUint8>();
-  final Struct7BytesHomogeneousUint8 a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct7BytesHomogeneousUint8>();
-  final Struct7BytesHomogeneousUint8 a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct7BytesHomogeneousUint8>();
-  final Struct7BytesHomogeneousUint8 a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct7BytesHomogeneousUint8>();
-  final Struct7BytesHomogeneousUint8 a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct7BytesHomogeneousUint8>();
-  final Struct7BytesHomogeneousUint8 a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct7BytesHomogeneousUint8>();
-  final Struct7BytesHomogeneousUint8 a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct7BytesHomogeneousUint8>();
-  final Struct7BytesHomogeneousUint8 a9 = a9Pointer.ref;
-
-  a0.a0 = 1;
-  a0.a1 = 2;
-  a0.a2 = 3;
-  a0.a3 = 4;
-  a0.a4 = 5;
-  a0.a5 = 6;
-  a0.a6 = 7;
-  a1.a0 = 8;
-  a1.a1 = 9;
-  a1.a2 = 10;
-  a1.a3 = 11;
-  a1.a4 = 12;
-  a1.a5 = 13;
-  a1.a6 = 14;
-  a2.a0 = 15;
-  a2.a1 = 16;
-  a2.a2 = 17;
-  a2.a3 = 18;
-  a2.a4 = 19;
-  a2.a5 = 20;
-  a2.a6 = 21;
-  a3.a0 = 22;
-  a3.a1 = 23;
-  a3.a2 = 24;
-  a3.a3 = 25;
-  a3.a4 = 26;
-  a3.a5 = 27;
-  a3.a6 = 28;
-  a4.a0 = 29;
-  a4.a1 = 30;
-  a4.a2 = 31;
-  a4.a3 = 32;
-  a4.a4 = 33;
-  a4.a5 = 34;
-  a4.a6 = 35;
-  a5.a0 = 36;
-  a5.a1 = 37;
-  a5.a2 = 38;
-  a5.a3 = 39;
-  a5.a4 = 40;
-  a5.a5 = 41;
-  a5.a6 = 42;
-  a6.a0 = 43;
-  a6.a1 = 44;
-  a6.a2 = 45;
-  a6.a3 = 46;
-  a6.a4 = 47;
-  a6.a5 = 48;
-  a6.a6 = 49;
-  a7.a0 = 50;
-  a7.a1 = 51;
-  a7.a2 = 52;
-  a7.a3 = 53;
-  a7.a4 = 54;
-  a7.a5 = 55;
-  a7.a6 = 56;
-  a8.a0 = 57;
-  a8.a1 = 58;
-  a8.a2 = 59;
-  a8.a3 = 60;
-  a8.a4 = 61;
-  a8.a5 = 62;
-  a8.a6 = 63;
-  a9.a0 = 64;
-  a9.a1 = 65;
-  a9.a2 = 66;
-  a9.a3 = 67;
-  a9.a4 = 68;
-  a9.a5 = 69;
-  a9.a6 = 70;
-
-  final result = passStruct7BytesHomogeneousUint8x10(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(2485, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct7BytesInt4ByteAlignedx10 = ffiTestFunctions.lookupFunction<
-    Int64 Function(
-        Struct7BytesInt4ByteAligned,
-        Struct7BytesInt4ByteAligned,
-        Struct7BytesInt4ByteAligned,
-        Struct7BytesInt4ByteAligned,
-        Struct7BytesInt4ByteAligned,
-        Struct7BytesInt4ByteAligned,
-        Struct7BytesInt4ByteAligned,
-        Struct7BytesInt4ByteAligned,
-        Struct7BytesInt4ByteAligned,
-        Struct7BytesInt4ByteAligned),
-    int Function(
-        Struct7BytesInt4ByteAligned,
-        Struct7BytesInt4ByteAligned,
-        Struct7BytesInt4ByteAligned,
-        Struct7BytesInt4ByteAligned,
-        Struct7BytesInt4ByteAligned,
-        Struct7BytesInt4ByteAligned,
-        Struct7BytesInt4ByteAligned,
-        Struct7BytesInt4ByteAligned,
-        Struct7BytesInt4ByteAligned,
-        Struct7BytesInt4ByteAligned)>("PassStruct7BytesInt4ByteAlignedx10");
-
-/// Sub word size on 64 bit architectures.
-/// With alignment rules taken into account size is 8 bytes.
-/// 10 struct arguments will exhaust available registers.
-void testPassStruct7BytesInt4ByteAlignedx10() {
-  final a0Pointer = calloc<Struct7BytesInt4ByteAligned>();
-  final Struct7BytesInt4ByteAligned a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct7BytesInt4ByteAligned>();
-  final Struct7BytesInt4ByteAligned a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct7BytesInt4ByteAligned>();
-  final Struct7BytesInt4ByteAligned a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct7BytesInt4ByteAligned>();
-  final Struct7BytesInt4ByteAligned a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct7BytesInt4ByteAligned>();
-  final Struct7BytesInt4ByteAligned a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct7BytesInt4ByteAligned>();
-  final Struct7BytesInt4ByteAligned a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct7BytesInt4ByteAligned>();
-  final Struct7BytesInt4ByteAligned a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct7BytesInt4ByteAligned>();
-  final Struct7BytesInt4ByteAligned a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct7BytesInt4ByteAligned>();
-  final Struct7BytesInt4ByteAligned a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct7BytesInt4ByteAligned>();
-  final Struct7BytesInt4ByteAligned a9 = a9Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a0.a2 = -3;
-  a1.a0 = 4;
-  a1.a1 = -5;
-  a1.a2 = 6;
-  a2.a0 = -7;
-  a2.a1 = 8;
-  a2.a2 = -9;
-  a3.a0 = 10;
-  a3.a1 = -11;
-  a3.a2 = 12;
-  a4.a0 = -13;
-  a4.a1 = 14;
-  a4.a2 = -15;
-  a5.a0 = 16;
-  a5.a1 = -17;
-  a5.a2 = 18;
-  a6.a0 = -19;
-  a6.a1 = 20;
-  a6.a2 = -21;
-  a7.a0 = 22;
-  a7.a1 = -23;
-  a7.a2 = 24;
-  a8.a0 = -25;
-  a8.a1 = 26;
-  a8.a2 = -27;
-  a9.a0 = 28;
-  a9.a1 = -29;
-  a9.a2 = 30;
-
-  final result = passStruct7BytesInt4ByteAlignedx10(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(15, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct8BytesIntx10 = ffiTestFunctions.lookupFunction<
-    Int64 Function(
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt),
-    int Function(
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt,
-        Struct8BytesInt)>("PassStruct8BytesIntx10");
-
-/// Exactly word size struct on 64bit architectures.
-/// 10 struct arguments will exhaust available registers.
-void testPassStruct8BytesIntx10() {
-  final a0Pointer = calloc<Struct8BytesInt>();
-  final Struct8BytesInt a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct8BytesInt>();
-  final Struct8BytesInt a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct8BytesInt>();
-  final Struct8BytesInt a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct8BytesInt>();
-  final Struct8BytesInt a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct8BytesInt>();
-  final Struct8BytesInt a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct8BytesInt>();
-  final Struct8BytesInt a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct8BytesInt>();
-  final Struct8BytesInt a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct8BytesInt>();
-  final Struct8BytesInt a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct8BytesInt>();
-  final Struct8BytesInt a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct8BytesInt>();
-  final Struct8BytesInt a9 = a9Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a0.a2 = -3;
-  a1.a0 = 4;
-  a1.a1 = -5;
-  a1.a2 = 6;
-  a2.a0 = -7;
-  a2.a1 = 8;
-  a2.a2 = -9;
-  a3.a0 = 10;
-  a3.a1 = -11;
-  a3.a2 = 12;
-  a4.a0 = -13;
-  a4.a1 = 14;
-  a4.a2 = -15;
-  a5.a0 = 16;
-  a5.a1 = -17;
-  a5.a2 = 18;
-  a6.a0 = -19;
-  a6.a1 = 20;
-  a6.a2 = -21;
-  a7.a0 = 22;
-  a7.a1 = -23;
-  a7.a2 = 24;
-  a8.a0 = -25;
-  a8.a1 = 26;
-  a8.a2 = -27;
-  a9.a0 = 28;
-  a9.a1 = -29;
-  a9.a2 = 30;
-
-  final result = passStruct8BytesIntx10(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(15, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct8BytesHomogeneousFloatx10 = ffiTestFunctions.lookupFunction<
-    Float Function(
-        Struct8BytesHomogeneousFloat,
-        Struct8BytesHomogeneousFloat,
-        Struct8BytesHomogeneousFloat,
-        Struct8BytesHomogeneousFloat,
-        Struct8BytesHomogeneousFloat,
-        Struct8BytesHomogeneousFloat,
-        Struct8BytesHomogeneousFloat,
-        Struct8BytesHomogeneousFloat,
-        Struct8BytesHomogeneousFloat,
-        Struct8BytesHomogeneousFloat),
-    double Function(
-        Struct8BytesHomogeneousFloat,
-        Struct8BytesHomogeneousFloat,
-        Struct8BytesHomogeneousFloat,
-        Struct8BytesHomogeneousFloat,
-        Struct8BytesHomogeneousFloat,
-        Struct8BytesHomogeneousFloat,
-        Struct8BytesHomogeneousFloat,
-        Struct8BytesHomogeneousFloat,
-        Struct8BytesHomogeneousFloat,
-        Struct8BytesHomogeneousFloat)>("PassStruct8BytesHomogeneousFloatx10");
-
-/// Arguments passed in FP registers as long as they fit.
-/// 10 struct arguments will exhaust available registers.
-void testPassStruct8BytesHomogeneousFloatx10() {
-  final a0Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a9 = a9Pointer.ref;
-
-  a0.a0 = -1.0;
-  a0.a1 = 2.0;
-  a1.a0 = -3.0;
-  a1.a1 = 4.0;
-  a2.a0 = -5.0;
-  a2.a1 = 6.0;
-  a3.a0 = -7.0;
-  a3.a1 = 8.0;
-  a4.a0 = -9.0;
-  a4.a1 = 10.0;
-  a5.a0 = -11.0;
-  a5.a1 = 12.0;
-  a6.a0 = -13.0;
-  a6.a1 = 14.0;
-  a7.a0 = -15.0;
-  a7.a1 = 16.0;
-  a8.a0 = -17.0;
-  a8.a1 = 18.0;
-  a9.a0 = -19.0;
-  a9.a1 = 20.0;
-
-  final result = passStruct8BytesHomogeneousFloatx10(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.approxEquals(10.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct8BytesMixedx10 = ffiTestFunctions.lookupFunction<
-    Float Function(
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed),
-    double Function(
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed,
-        Struct8BytesMixed)>("PassStruct8BytesMixedx10");
-
-/// On x64, arguments go in int registers because it is not only float.
-/// 10 struct arguments will exhaust available registers.
-void testPassStruct8BytesMixedx10() {
-  final a0Pointer = calloc<Struct8BytesMixed>();
-  final Struct8BytesMixed a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct8BytesMixed>();
-  final Struct8BytesMixed a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct8BytesMixed>();
-  final Struct8BytesMixed a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct8BytesMixed>();
-  final Struct8BytesMixed a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct8BytesMixed>();
-  final Struct8BytesMixed a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct8BytesMixed>();
-  final Struct8BytesMixed a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct8BytesMixed>();
-  final Struct8BytesMixed a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct8BytesMixed>();
-  final Struct8BytesMixed a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct8BytesMixed>();
-  final Struct8BytesMixed a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct8BytesMixed>();
-  final Struct8BytesMixed a9 = a9Pointer.ref;
-
-  a0.a0 = -1.0;
-  a0.a1 = 2;
-  a0.a2 = -3;
-  a1.a0 = 4.0;
-  a1.a1 = -5;
-  a1.a2 = 6;
-  a2.a0 = -7.0;
-  a2.a1 = 8;
-  a2.a2 = -9;
-  a3.a0 = 10.0;
-  a3.a1 = -11;
-  a3.a2 = 12;
-  a4.a0 = -13.0;
-  a4.a1 = 14;
-  a4.a2 = -15;
-  a5.a0 = 16.0;
-  a5.a1 = -17;
-  a5.a2 = 18;
-  a6.a0 = -19.0;
-  a6.a1 = 20;
-  a6.a2 = -21;
-  a7.a0 = 22.0;
-  a7.a1 = -23;
-  a7.a2 = 24;
-  a8.a0 = -25.0;
-  a8.a1 = 26;
-  a8.a2 = -27;
-  a9.a0 = 28.0;
-  a9.a1 = -29;
-  a9.a2 = 30;
-
-  final result =
-      passStruct8BytesMixedx10(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.approxEquals(15.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct9BytesHomogeneousUint8x10 = ffiTestFunctions.lookupFunction<
-    Int64 Function(
-        Struct9BytesHomogeneousUint8,
-        Struct9BytesHomogeneousUint8,
-        Struct9BytesHomogeneousUint8,
-        Struct9BytesHomogeneousUint8,
-        Struct9BytesHomogeneousUint8,
-        Struct9BytesHomogeneousUint8,
-        Struct9BytesHomogeneousUint8,
-        Struct9BytesHomogeneousUint8,
-        Struct9BytesHomogeneousUint8,
-        Struct9BytesHomogeneousUint8),
-    int Function(
-        Struct9BytesHomogeneousUint8,
-        Struct9BytesHomogeneousUint8,
-        Struct9BytesHomogeneousUint8,
-        Struct9BytesHomogeneousUint8,
-        Struct9BytesHomogeneousUint8,
-        Struct9BytesHomogeneousUint8,
-        Struct9BytesHomogeneousUint8,
-        Struct9BytesHomogeneousUint8,
-        Struct9BytesHomogeneousUint8,
-        Struct9BytesHomogeneousUint8)>("PassStruct9BytesHomogeneousUint8x10");
-
-/// Argument is a single byte over a multiple of word size.
-/// 10 struct arguments will exhaust available registers.
-/// Struct only has 1-byte aligned fields to test struct alignment itself.
-/// Tests upper bytes in the integer registers that are partly filled.
-/// Tests stack alignment of non word size stack arguments.
-void testPassStruct9BytesHomogeneousUint8x10() {
-  final a0Pointer = calloc<Struct9BytesHomogeneousUint8>();
-  final Struct9BytesHomogeneousUint8 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct9BytesHomogeneousUint8>();
-  final Struct9BytesHomogeneousUint8 a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct9BytesHomogeneousUint8>();
-  final Struct9BytesHomogeneousUint8 a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct9BytesHomogeneousUint8>();
-  final Struct9BytesHomogeneousUint8 a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct9BytesHomogeneousUint8>();
-  final Struct9BytesHomogeneousUint8 a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct9BytesHomogeneousUint8>();
-  final Struct9BytesHomogeneousUint8 a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct9BytesHomogeneousUint8>();
-  final Struct9BytesHomogeneousUint8 a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct9BytesHomogeneousUint8>();
-  final Struct9BytesHomogeneousUint8 a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct9BytesHomogeneousUint8>();
-  final Struct9BytesHomogeneousUint8 a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct9BytesHomogeneousUint8>();
-  final Struct9BytesHomogeneousUint8 a9 = a9Pointer.ref;
-
-  a0.a0 = 1;
-  a0.a1 = 2;
-  a0.a2 = 3;
-  a0.a3 = 4;
-  a0.a4 = 5;
-  a0.a5 = 6;
-  a0.a6 = 7;
-  a0.a7 = 8;
-  a0.a8 = 9;
-  a1.a0 = 10;
-  a1.a1 = 11;
-  a1.a2 = 12;
-  a1.a3 = 13;
-  a1.a4 = 14;
-  a1.a5 = 15;
-  a1.a6 = 16;
-  a1.a7 = 17;
-  a1.a8 = 18;
-  a2.a0 = 19;
-  a2.a1 = 20;
-  a2.a2 = 21;
-  a2.a3 = 22;
-  a2.a4 = 23;
-  a2.a5 = 24;
-  a2.a6 = 25;
-  a2.a7 = 26;
-  a2.a8 = 27;
-  a3.a0 = 28;
-  a3.a1 = 29;
-  a3.a2 = 30;
-  a3.a3 = 31;
-  a3.a4 = 32;
-  a3.a5 = 33;
-  a3.a6 = 34;
-  a3.a7 = 35;
-  a3.a8 = 36;
-  a4.a0 = 37;
-  a4.a1 = 38;
-  a4.a2 = 39;
-  a4.a3 = 40;
-  a4.a4 = 41;
-  a4.a5 = 42;
-  a4.a6 = 43;
-  a4.a7 = 44;
-  a4.a8 = 45;
-  a5.a0 = 46;
-  a5.a1 = 47;
-  a5.a2 = 48;
-  a5.a3 = 49;
-  a5.a4 = 50;
-  a5.a5 = 51;
-  a5.a6 = 52;
-  a5.a7 = 53;
-  a5.a8 = 54;
-  a6.a0 = 55;
-  a6.a1 = 56;
-  a6.a2 = 57;
-  a6.a3 = 58;
-  a6.a4 = 59;
-  a6.a5 = 60;
-  a6.a6 = 61;
-  a6.a7 = 62;
-  a6.a8 = 63;
-  a7.a0 = 64;
-  a7.a1 = 65;
-  a7.a2 = 66;
-  a7.a3 = 67;
-  a7.a4 = 68;
-  a7.a5 = 69;
-  a7.a6 = 70;
-  a7.a7 = 71;
-  a7.a8 = 72;
-  a8.a0 = 73;
-  a8.a1 = 74;
-  a8.a2 = 75;
-  a8.a3 = 76;
-  a8.a4 = 77;
-  a8.a5 = 78;
-  a8.a6 = 79;
-  a8.a7 = 80;
-  a8.a8 = 81;
-  a9.a0 = 82;
-  a9.a1 = 83;
-  a9.a2 = 84;
-  a9.a3 = 85;
-  a9.a4 = 86;
-  a9.a5 = 87;
-  a9.a6 = 88;
-  a9.a7 = 89;
-  a9.a8 = 90;
-
-  final result = passStruct9BytesHomogeneousUint8x10(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(4095, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct9BytesInt4Or8ByteAlignedx10 = ffiTestFunctions.lookupFunction<
-        Int64 Function(
-            Struct9BytesInt4Or8ByteAligned,
-            Struct9BytesInt4Or8ByteAligned,
-            Struct9BytesInt4Or8ByteAligned,
-            Struct9BytesInt4Or8ByteAligned,
-            Struct9BytesInt4Or8ByteAligned,
-            Struct9BytesInt4Or8ByteAligned,
-            Struct9BytesInt4Or8ByteAligned,
-            Struct9BytesInt4Or8ByteAligned,
-            Struct9BytesInt4Or8ByteAligned,
-            Struct9BytesInt4Or8ByteAligned),
-        int Function(
-            Struct9BytesInt4Or8ByteAligned,
-            Struct9BytesInt4Or8ByteAligned,
-            Struct9BytesInt4Or8ByteAligned,
-            Struct9BytesInt4Or8ByteAligned,
-            Struct9BytesInt4Or8ByteAligned,
-            Struct9BytesInt4Or8ByteAligned,
-            Struct9BytesInt4Or8ByteAligned,
-            Struct9BytesInt4Or8ByteAligned,
-            Struct9BytesInt4Or8ByteAligned,
-            Struct9BytesInt4Or8ByteAligned)>(
-    "PassStruct9BytesInt4Or8ByteAlignedx10");
-
-/// Argument is a single byte over a multiple of word size.
-/// With alignment rules taken into account size is 12 or 16 bytes.
-/// 10 struct arguments will exhaust available registers.
-///
-void testPassStruct9BytesInt4Or8ByteAlignedx10() {
-  final a0Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
-  final Struct9BytesInt4Or8ByteAligned a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
-  final Struct9BytesInt4Or8ByteAligned a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
-  final Struct9BytesInt4Or8ByteAligned a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
-  final Struct9BytesInt4Or8ByteAligned a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
-  final Struct9BytesInt4Or8ByteAligned a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
-  final Struct9BytesInt4Or8ByteAligned a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
-  final Struct9BytesInt4Or8ByteAligned a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
-  final Struct9BytesInt4Or8ByteAligned a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
-  final Struct9BytesInt4Or8ByteAligned a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct9BytesInt4Or8ByteAligned>();
-  final Struct9BytesInt4Or8ByteAligned a9 = a9Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a1.a0 = -3;
-  a1.a1 = 4;
-  a2.a0 = -5;
-  a2.a1 = 6;
-  a3.a0 = -7;
-  a3.a1 = 8;
-  a4.a0 = -9;
-  a4.a1 = 10;
-  a5.a0 = -11;
-  a5.a1 = 12;
-  a6.a0 = -13;
-  a6.a1 = 14;
-  a7.a0 = -15;
-  a7.a1 = 16;
-  a8.a0 = -17;
-  a8.a1 = 18;
-  a9.a0 = -19;
-  a9.a1 = 20;
-
-  final result = passStruct9BytesInt4Or8ByteAlignedx10(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(10, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct12BytesHomogeneousFloatx6 = ffiTestFunctions.lookupFunction<
-    Float Function(
-        Struct12BytesHomogeneousFloat,
-        Struct12BytesHomogeneousFloat,
-        Struct12BytesHomogeneousFloat,
-        Struct12BytesHomogeneousFloat,
-        Struct12BytesHomogeneousFloat,
-        Struct12BytesHomogeneousFloat),
-    double Function(
-        Struct12BytesHomogeneousFloat,
-        Struct12BytesHomogeneousFloat,
-        Struct12BytesHomogeneousFloat,
-        Struct12BytesHomogeneousFloat,
-        Struct12BytesHomogeneousFloat,
-        Struct12BytesHomogeneousFloat)>("PassStruct12BytesHomogeneousFloatx6");
-
-/// Arguments in FPU registers on arm hardfp and arm64.
-/// Struct arguments will exhaust available registers, and leave some empty.
-/// The last argument is to test whether arguments are backfilled.
-void testPassStruct12BytesHomogeneousFloatx6() {
-  final a0Pointer = calloc<Struct12BytesHomogeneousFloat>();
-  final Struct12BytesHomogeneousFloat a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct12BytesHomogeneousFloat>();
-  final Struct12BytesHomogeneousFloat a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct12BytesHomogeneousFloat>();
-  final Struct12BytesHomogeneousFloat a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct12BytesHomogeneousFloat>();
-  final Struct12BytesHomogeneousFloat a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct12BytesHomogeneousFloat>();
-  final Struct12BytesHomogeneousFloat a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct12BytesHomogeneousFloat>();
-  final Struct12BytesHomogeneousFloat a5 = a5Pointer.ref;
-
-  a0.a0 = -1.0;
-  a0.a1 = 2.0;
-  a0.a2 = -3.0;
-  a1.a0 = 4.0;
-  a1.a1 = -5.0;
-  a1.a2 = 6.0;
-  a2.a0 = -7.0;
-  a2.a1 = 8.0;
-  a2.a2 = -9.0;
-  a3.a0 = 10.0;
-  a3.a1 = -11.0;
-  a3.a2 = 12.0;
-  a4.a0 = -13.0;
-  a4.a1 = 14.0;
-  a4.a2 = -15.0;
-  a5.a0 = 16.0;
-  a5.a1 = -17.0;
-  a5.a2 = 18.0;
-
-  final result = passStruct12BytesHomogeneousFloatx6(a0, a1, a2, a3, a4, a5);
-
-  print("result = $result");
-
-  Expect.approxEquals(9.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-}
-
-final passStruct16BytesHomogeneousFloatx5 = ffiTestFunctions.lookupFunction<
-    Float Function(
-        Struct16BytesHomogeneousFloat,
-        Struct16BytesHomogeneousFloat,
-        Struct16BytesHomogeneousFloat,
-        Struct16BytesHomogeneousFloat,
-        Struct16BytesHomogeneousFloat),
-    double Function(
-        Struct16BytesHomogeneousFloat,
-        Struct16BytesHomogeneousFloat,
-        Struct16BytesHomogeneousFloat,
-        Struct16BytesHomogeneousFloat,
-        Struct16BytesHomogeneousFloat)>("PassStruct16BytesHomogeneousFloatx5");
-
-/// On Linux x64 argument is transferred on stack because it is over 16 bytes.
-/// Arguments in FPU registers on arm hardfp and arm64.
-/// 5 struct arguments will exhaust available registers.
-void testPassStruct16BytesHomogeneousFloatx5() {
-  final a0Pointer = calloc<Struct16BytesHomogeneousFloat>();
-  final Struct16BytesHomogeneousFloat a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct16BytesHomogeneousFloat>();
-  final Struct16BytesHomogeneousFloat a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct16BytesHomogeneousFloat>();
-  final Struct16BytesHomogeneousFloat a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct16BytesHomogeneousFloat>();
-  final Struct16BytesHomogeneousFloat a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct16BytesHomogeneousFloat>();
-  final Struct16BytesHomogeneousFloat a4 = a4Pointer.ref;
-
-  a0.a0 = -1.0;
-  a0.a1 = 2.0;
-  a0.a2 = -3.0;
-  a0.a3 = 4.0;
-  a1.a0 = -5.0;
-  a1.a1 = 6.0;
-  a1.a2 = -7.0;
-  a1.a3 = 8.0;
-  a2.a0 = -9.0;
-  a2.a1 = 10.0;
-  a2.a2 = -11.0;
-  a2.a3 = 12.0;
-  a3.a0 = -13.0;
-  a3.a1 = 14.0;
-  a3.a2 = -15.0;
-  a3.a3 = 16.0;
-  a4.a0 = -17.0;
-  a4.a1 = 18.0;
-  a4.a2 = -19.0;
-  a4.a3 = 20.0;
-
-  final result = passStruct16BytesHomogeneousFloatx5(a0, a1, a2, a3, a4);
-
-  print("result = $result");
-
-  Expect.approxEquals(10.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-}
-
-final passStruct16BytesMixedx10 = ffiTestFunctions.lookupFunction<
-    Double Function(
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed),
-    double Function(
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed)>("PassStruct16BytesMixedx10");
-
-/// On x64, arguments are split over FP and int registers.
-/// On x64, it will exhaust the integer registers with the 6th argument.
-/// The rest goes on the stack.
-/// On arm, arguments are 8 byte aligned.
-void testPassStruct16BytesMixedx10() {
-  final a0Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a9 = a9Pointer.ref;
-
-  a0.a0 = -1.0;
-  a0.a1 = 2;
-  a1.a0 = -3.0;
-  a1.a1 = 4;
-  a2.a0 = -5.0;
-  a2.a1 = 6;
-  a3.a0 = -7.0;
-  a3.a1 = 8;
-  a4.a0 = -9.0;
-  a4.a1 = 10;
-  a5.a0 = -11.0;
-  a5.a1 = 12;
-  a6.a0 = -13.0;
-  a6.a1 = 14;
-  a7.a0 = -15.0;
-  a7.a1 = 16;
-  a8.a0 = -17.0;
-  a8.a1 = 18;
-  a9.a0 = -19.0;
-  a9.a1 = 20;
-
-  final result =
-      passStruct16BytesMixedx10(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.approxEquals(10.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct16BytesMixed2x10 = ffiTestFunctions.lookupFunction<
-    Float Function(
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2),
-    double Function(
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2,
-        Struct16BytesMixed2)>("PassStruct16BytesMixed2x10");
-
-/// On x64, arguments are split over FP and int registers.
-/// On x64, it will exhaust the integer registers with the 6th argument.
-/// The rest goes on the stack.
-/// On arm, arguments are 4 byte aligned.
-void testPassStruct16BytesMixed2x10() {
-  final a0Pointer = calloc<Struct16BytesMixed2>();
-  final Struct16BytesMixed2 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct16BytesMixed2>();
-  final Struct16BytesMixed2 a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct16BytesMixed2>();
-  final Struct16BytesMixed2 a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct16BytesMixed2>();
-  final Struct16BytesMixed2 a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct16BytesMixed2>();
-  final Struct16BytesMixed2 a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct16BytesMixed2>();
-  final Struct16BytesMixed2 a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct16BytesMixed2>();
-  final Struct16BytesMixed2 a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct16BytesMixed2>();
-  final Struct16BytesMixed2 a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct16BytesMixed2>();
-  final Struct16BytesMixed2 a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct16BytesMixed2>();
-  final Struct16BytesMixed2 a9 = a9Pointer.ref;
-
-  a0.a0 = -1.0;
-  a0.a1 = 2.0;
-  a0.a2 = -3.0;
-  a0.a3 = 4;
-  a1.a0 = -5.0;
-  a1.a1 = 6.0;
-  a1.a2 = -7.0;
-  a1.a3 = 8;
-  a2.a0 = -9.0;
-  a2.a1 = 10.0;
-  a2.a2 = -11.0;
-  a2.a3 = 12;
-  a3.a0 = -13.0;
-  a3.a1 = 14.0;
-  a3.a2 = -15.0;
-  a3.a3 = 16;
-  a4.a0 = -17.0;
-  a4.a1 = 18.0;
-  a4.a2 = -19.0;
-  a4.a3 = 20;
-  a5.a0 = -21.0;
-  a5.a1 = 22.0;
-  a5.a2 = -23.0;
-  a5.a3 = 24;
-  a6.a0 = -25.0;
-  a6.a1 = 26.0;
-  a6.a2 = -27.0;
-  a6.a3 = 28;
-  a7.a0 = -29.0;
-  a7.a1 = 30.0;
-  a7.a2 = -31.0;
-  a7.a3 = 32;
-  a8.a0 = -33.0;
-  a8.a1 = 34.0;
-  a8.a2 = -35.0;
-  a8.a3 = 36;
-  a9.a0 = -37.0;
-  a9.a1 = 38.0;
-  a9.a2 = -39.0;
-  a9.a3 = 40;
-
-  final result =
-      passStruct16BytesMixed2x10(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.approxEquals(20.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct17BytesIntx10 = ffiTestFunctions.lookupFunction<
-    Int64 Function(
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt),
-    int Function(
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt,
-        Struct17BytesInt)>("PassStruct17BytesIntx10");
-
-/// Arguments are passed as pointer to copy on arm64.
-/// Tests that the memory allocated for copies are rounded up to word size.
-void testPassStruct17BytesIntx10() {
-  final a0Pointer = calloc<Struct17BytesInt>();
-  final Struct17BytesInt a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct17BytesInt>();
-  final Struct17BytesInt a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct17BytesInt>();
-  final Struct17BytesInt a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct17BytesInt>();
-  final Struct17BytesInt a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct17BytesInt>();
-  final Struct17BytesInt a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct17BytesInt>();
-  final Struct17BytesInt a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct17BytesInt>();
-  final Struct17BytesInt a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct17BytesInt>();
-  final Struct17BytesInt a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct17BytesInt>();
-  final Struct17BytesInt a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct17BytesInt>();
-  final Struct17BytesInt a9 = a9Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a0.a2 = -3;
-  a1.a0 = 4;
-  a1.a1 = -5;
-  a1.a2 = 6;
-  a2.a0 = -7;
-  a2.a1 = 8;
-  a2.a2 = -9;
-  a3.a0 = 10;
-  a3.a1 = -11;
-  a3.a2 = 12;
-  a4.a0 = -13;
-  a4.a1 = 14;
-  a4.a2 = -15;
-  a5.a0 = 16;
-  a5.a1 = -17;
-  a5.a2 = 18;
-  a6.a0 = -19;
-  a6.a1 = 20;
-  a6.a2 = -21;
-  a7.a0 = 22;
-  a7.a1 = -23;
-  a7.a2 = 24;
-  a8.a0 = -25;
-  a8.a1 = 26;
-  a8.a2 = -27;
-  a9.a0 = 28;
-  a9.a1 = -29;
-  a9.a2 = 30;
-
-  final result =
-      passStruct17BytesIntx10(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(15, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct19BytesHomogeneousUint8x10 = ffiTestFunctions.lookupFunction<
-    Int64 Function(
-        Struct19BytesHomogeneousUint8,
-        Struct19BytesHomogeneousUint8,
-        Struct19BytesHomogeneousUint8,
-        Struct19BytesHomogeneousUint8,
-        Struct19BytesHomogeneousUint8,
-        Struct19BytesHomogeneousUint8,
-        Struct19BytesHomogeneousUint8,
-        Struct19BytesHomogeneousUint8,
-        Struct19BytesHomogeneousUint8,
-        Struct19BytesHomogeneousUint8),
-    int Function(
-        Struct19BytesHomogeneousUint8,
-        Struct19BytesHomogeneousUint8,
-        Struct19BytesHomogeneousUint8,
-        Struct19BytesHomogeneousUint8,
-        Struct19BytesHomogeneousUint8,
-        Struct19BytesHomogeneousUint8,
-        Struct19BytesHomogeneousUint8,
-        Struct19BytesHomogeneousUint8,
-        Struct19BytesHomogeneousUint8,
-        Struct19BytesHomogeneousUint8)>("PassStruct19BytesHomogeneousUint8x10");
-
-/// The minimum alignment of this struct is only 1 byte based on its fields.
-/// Test that the memory backing these structs is extended to the right size.
-///
-void testPassStruct19BytesHomogeneousUint8x10() {
-  final a0Pointer = calloc<Struct19BytesHomogeneousUint8>();
-  final Struct19BytesHomogeneousUint8 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct19BytesHomogeneousUint8>();
-  final Struct19BytesHomogeneousUint8 a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct19BytesHomogeneousUint8>();
-  final Struct19BytesHomogeneousUint8 a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct19BytesHomogeneousUint8>();
-  final Struct19BytesHomogeneousUint8 a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct19BytesHomogeneousUint8>();
-  final Struct19BytesHomogeneousUint8 a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct19BytesHomogeneousUint8>();
-  final Struct19BytesHomogeneousUint8 a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct19BytesHomogeneousUint8>();
-  final Struct19BytesHomogeneousUint8 a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct19BytesHomogeneousUint8>();
-  final Struct19BytesHomogeneousUint8 a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct19BytesHomogeneousUint8>();
-  final Struct19BytesHomogeneousUint8 a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct19BytesHomogeneousUint8>();
-  final Struct19BytesHomogeneousUint8 a9 = a9Pointer.ref;
-
-  a0.a0 = 1;
-  a0.a1 = 2;
-  a0.a2 = 3;
-  a0.a3 = 4;
-  a0.a4 = 5;
-  a0.a5 = 6;
-  a0.a6 = 7;
-  a0.a7 = 8;
-  a0.a8 = 9;
-  a0.a9 = 10;
-  a0.a10 = 11;
-  a0.a11 = 12;
-  a0.a12 = 13;
-  a0.a13 = 14;
-  a0.a14 = 15;
-  a0.a15 = 16;
-  a0.a16 = 17;
-  a0.a17 = 18;
-  a0.a18 = 19;
-  a1.a0 = 20;
-  a1.a1 = 21;
-  a1.a2 = 22;
-  a1.a3 = 23;
-  a1.a4 = 24;
-  a1.a5 = 25;
-  a1.a6 = 26;
-  a1.a7 = 27;
-  a1.a8 = 28;
-  a1.a9 = 29;
-  a1.a10 = 30;
-  a1.a11 = 31;
-  a1.a12 = 32;
-  a1.a13 = 33;
-  a1.a14 = 34;
-  a1.a15 = 35;
-  a1.a16 = 36;
-  a1.a17 = 37;
-  a1.a18 = 38;
-  a2.a0 = 39;
-  a2.a1 = 40;
-  a2.a2 = 41;
-  a2.a3 = 42;
-  a2.a4 = 43;
-  a2.a5 = 44;
-  a2.a6 = 45;
-  a2.a7 = 46;
-  a2.a8 = 47;
-  a2.a9 = 48;
-  a2.a10 = 49;
-  a2.a11 = 50;
-  a2.a12 = 51;
-  a2.a13 = 52;
-  a2.a14 = 53;
-  a2.a15 = 54;
-  a2.a16 = 55;
-  a2.a17 = 56;
-  a2.a18 = 57;
-  a3.a0 = 58;
-  a3.a1 = 59;
-  a3.a2 = 60;
-  a3.a3 = 61;
-  a3.a4 = 62;
-  a3.a5 = 63;
-  a3.a6 = 64;
-  a3.a7 = 65;
-  a3.a8 = 66;
-  a3.a9 = 67;
-  a3.a10 = 68;
-  a3.a11 = 69;
-  a3.a12 = 70;
-  a3.a13 = 71;
-  a3.a14 = 72;
-  a3.a15 = 73;
-  a3.a16 = 74;
-  a3.a17 = 75;
-  a3.a18 = 76;
-  a4.a0 = 77;
-  a4.a1 = 78;
-  a4.a2 = 79;
-  a4.a3 = 80;
-  a4.a4 = 81;
-  a4.a5 = 82;
-  a4.a6 = 83;
-  a4.a7 = 84;
-  a4.a8 = 85;
-  a4.a9 = 86;
-  a4.a10 = 87;
-  a4.a11 = 88;
-  a4.a12 = 89;
-  a4.a13 = 90;
-  a4.a14 = 91;
-  a4.a15 = 92;
-  a4.a16 = 93;
-  a4.a17 = 94;
-  a4.a18 = 95;
-  a5.a0 = 96;
-  a5.a1 = 97;
-  a5.a2 = 98;
-  a5.a3 = 99;
-  a5.a4 = 100;
-  a5.a5 = 101;
-  a5.a6 = 102;
-  a5.a7 = 103;
-  a5.a8 = 104;
-  a5.a9 = 105;
-  a5.a10 = 106;
-  a5.a11 = 107;
-  a5.a12 = 108;
-  a5.a13 = 109;
-  a5.a14 = 110;
-  a5.a15 = 111;
-  a5.a16 = 112;
-  a5.a17 = 113;
-  a5.a18 = 114;
-  a6.a0 = 115;
-  a6.a1 = 116;
-  a6.a2 = 117;
-  a6.a3 = 118;
-  a6.a4 = 119;
-  a6.a5 = 120;
-  a6.a6 = 121;
-  a6.a7 = 122;
-  a6.a8 = 123;
-  a6.a9 = 124;
-  a6.a10 = 125;
-  a6.a11 = 126;
-  a6.a12 = 127;
-  a6.a13 = 128;
-  a6.a14 = 129;
-  a6.a15 = 130;
-  a6.a16 = 131;
-  a6.a17 = 132;
-  a6.a18 = 133;
-  a7.a0 = 134;
-  a7.a1 = 135;
-  a7.a2 = 136;
-  a7.a3 = 137;
-  a7.a4 = 138;
-  a7.a5 = 139;
-  a7.a6 = 140;
-  a7.a7 = 141;
-  a7.a8 = 142;
-  a7.a9 = 143;
-  a7.a10 = 144;
-  a7.a11 = 145;
-  a7.a12 = 146;
-  a7.a13 = 147;
-  a7.a14 = 148;
-  a7.a15 = 149;
-  a7.a16 = 150;
-  a7.a17 = 151;
-  a7.a18 = 152;
-  a8.a0 = 153;
-  a8.a1 = 154;
-  a8.a2 = 155;
-  a8.a3 = 156;
-  a8.a4 = 157;
-  a8.a5 = 158;
-  a8.a6 = 159;
-  a8.a7 = 160;
-  a8.a8 = 161;
-  a8.a9 = 162;
-  a8.a10 = 163;
-  a8.a11 = 164;
-  a8.a12 = 165;
-  a8.a13 = 166;
-  a8.a14 = 167;
-  a8.a15 = 168;
-  a8.a16 = 169;
-  a8.a17 = 170;
-  a8.a18 = 171;
-  a9.a0 = 172;
-  a9.a1 = 173;
-  a9.a2 = 174;
-  a9.a3 = 175;
-  a9.a4 = 176;
-  a9.a5 = 177;
-  a9.a6 = 178;
-  a9.a7 = 179;
-  a9.a8 = 180;
-  a9.a9 = 181;
-  a9.a10 = 182;
-  a9.a11 = 183;
-  a9.a12 = 184;
-  a9.a13 = 185;
-  a9.a14 = 186;
-  a9.a15 = 187;
-  a9.a16 = 188;
-  a9.a17 = 189;
-  a9.a18 = 190;
-
-  final result = passStruct19BytesHomogeneousUint8x10(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(18145, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct20BytesHomogeneousInt32x10 = ffiTestFunctions.lookupFunction<
-    Int32 Function(
-        Struct20BytesHomogeneousInt32,
-        Struct20BytesHomogeneousInt32,
-        Struct20BytesHomogeneousInt32,
-        Struct20BytesHomogeneousInt32,
-        Struct20BytesHomogeneousInt32,
-        Struct20BytesHomogeneousInt32,
-        Struct20BytesHomogeneousInt32,
-        Struct20BytesHomogeneousInt32,
-        Struct20BytesHomogeneousInt32,
-        Struct20BytesHomogeneousInt32),
-    int Function(
-        Struct20BytesHomogeneousInt32,
-        Struct20BytesHomogeneousInt32,
-        Struct20BytesHomogeneousInt32,
-        Struct20BytesHomogeneousInt32,
-        Struct20BytesHomogeneousInt32,
-        Struct20BytesHomogeneousInt32,
-        Struct20BytesHomogeneousInt32,
-        Struct20BytesHomogeneousInt32,
-        Struct20BytesHomogeneousInt32,
-        Struct20BytesHomogeneousInt32)>("PassStruct20BytesHomogeneousInt32x10");
-
-/// Argument too big to go into integer registers on arm64.
-/// The arguments are passed as pointers to copies.
-/// The amount of arguments exhausts the number of integer registers, such that
-/// pointers to copies are also passed on the stack.
-void testPassStruct20BytesHomogeneousInt32x10() {
-  final a0Pointer = calloc<Struct20BytesHomogeneousInt32>();
-  final Struct20BytesHomogeneousInt32 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct20BytesHomogeneousInt32>();
-  final Struct20BytesHomogeneousInt32 a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct20BytesHomogeneousInt32>();
-  final Struct20BytesHomogeneousInt32 a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct20BytesHomogeneousInt32>();
-  final Struct20BytesHomogeneousInt32 a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct20BytesHomogeneousInt32>();
-  final Struct20BytesHomogeneousInt32 a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct20BytesHomogeneousInt32>();
-  final Struct20BytesHomogeneousInt32 a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct20BytesHomogeneousInt32>();
-  final Struct20BytesHomogeneousInt32 a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct20BytesHomogeneousInt32>();
-  final Struct20BytesHomogeneousInt32 a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct20BytesHomogeneousInt32>();
-  final Struct20BytesHomogeneousInt32 a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct20BytesHomogeneousInt32>();
-  final Struct20BytesHomogeneousInt32 a9 = a9Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a0.a2 = -3;
-  a0.a3 = 4;
-  a0.a4 = -5;
-  a1.a0 = 6;
-  a1.a1 = -7;
-  a1.a2 = 8;
-  a1.a3 = -9;
-  a1.a4 = 10;
-  a2.a0 = -11;
-  a2.a1 = 12;
-  a2.a2 = -13;
-  a2.a3 = 14;
-  a2.a4 = -15;
-  a3.a0 = 16;
-  a3.a1 = -17;
-  a3.a2 = 18;
-  a3.a3 = -19;
-  a3.a4 = 20;
-  a4.a0 = -21;
-  a4.a1 = 22;
-  a4.a2 = -23;
-  a4.a3 = 24;
-  a4.a4 = -25;
-  a5.a0 = 26;
-  a5.a1 = -27;
-  a5.a2 = 28;
-  a5.a3 = -29;
-  a5.a4 = 30;
-  a6.a0 = -31;
-  a6.a1 = 32;
-  a6.a2 = -33;
-  a6.a3 = 34;
-  a6.a4 = -35;
-  a7.a0 = 36;
-  a7.a1 = -37;
-  a7.a2 = 38;
-  a7.a3 = -39;
-  a7.a4 = 40;
-  a8.a0 = -41;
-  a8.a1 = 42;
-  a8.a2 = -43;
-  a8.a3 = 44;
-  a8.a4 = -45;
-  a9.a0 = 46;
-  a9.a1 = -47;
-  a9.a2 = 48;
-  a9.a3 = -49;
-  a9.a4 = 50;
-
-  final result = passStruct20BytesHomogeneousInt32x10(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(25, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct20BytesHomogeneousFloat = ffiTestFunctions.lookupFunction<
-    Float Function(Struct20BytesHomogeneousFloat),
-    double Function(
-        Struct20BytesHomogeneousFloat)>("PassStruct20BytesHomogeneousFloat");
-
-/// Argument too big to go into FPU registers in hardfp and arm64.
-void testPassStruct20BytesHomogeneousFloat() {
-  final a0Pointer = calloc<Struct20BytesHomogeneousFloat>();
-  final Struct20BytesHomogeneousFloat a0 = a0Pointer.ref;
-
-  a0.a0 = -1.0;
-  a0.a1 = 2.0;
-  a0.a2 = -3.0;
-  a0.a3 = 4.0;
-  a0.a4 = -5.0;
-
-  final result = passStruct20BytesHomogeneousFloat(a0);
-
-  print("result = $result");
-
-  Expect.approxEquals(-3.0, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passStruct32BytesHomogeneousDoublex5 = ffiTestFunctions.lookupFunction<
-        Double Function(
-            Struct32BytesHomogeneousDouble,
-            Struct32BytesHomogeneousDouble,
-            Struct32BytesHomogeneousDouble,
-            Struct32BytesHomogeneousDouble,
-            Struct32BytesHomogeneousDouble),
-        double Function(
-            Struct32BytesHomogeneousDouble,
-            Struct32BytesHomogeneousDouble,
-            Struct32BytesHomogeneousDouble,
-            Struct32BytesHomogeneousDouble,
-            Struct32BytesHomogeneousDouble)>(
-    "PassStruct32BytesHomogeneousDoublex5");
-
-/// Arguments in FPU registers on arm64.
-/// 5 struct arguments will exhaust available registers.
-void testPassStruct32BytesHomogeneousDoublex5() {
-  final a0Pointer = calloc<Struct32BytesHomogeneousDouble>();
-  final Struct32BytesHomogeneousDouble a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct32BytesHomogeneousDouble>();
-  final Struct32BytesHomogeneousDouble a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct32BytesHomogeneousDouble>();
-  final Struct32BytesHomogeneousDouble a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct32BytesHomogeneousDouble>();
-  final Struct32BytesHomogeneousDouble a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct32BytesHomogeneousDouble>();
-  final Struct32BytesHomogeneousDouble a4 = a4Pointer.ref;
-
-  a0.a0 = -1.0;
-  a0.a1 = 2.0;
-  a0.a2 = -3.0;
-  a0.a3 = 4.0;
-  a1.a0 = -5.0;
-  a1.a1 = 6.0;
-  a1.a2 = -7.0;
-  a1.a3 = 8.0;
-  a2.a0 = -9.0;
-  a2.a1 = 10.0;
-  a2.a2 = -11.0;
-  a2.a3 = 12.0;
-  a3.a0 = -13.0;
-  a3.a1 = 14.0;
-  a3.a2 = -15.0;
-  a3.a3 = 16.0;
-  a4.a0 = -17.0;
-  a4.a1 = 18.0;
-  a4.a2 = -19.0;
-  a4.a3 = 20.0;
-
-  final result = passStruct32BytesHomogeneousDoublex5(a0, a1, a2, a3, a4);
-
-  print("result = $result");
-
-  Expect.approxEquals(10.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-}
-
-final passStruct40BytesHomogeneousDouble = ffiTestFunctions.lookupFunction<
-    Double Function(Struct40BytesHomogeneousDouble),
-    double Function(
-        Struct40BytesHomogeneousDouble)>("PassStruct40BytesHomogeneousDouble");
-
-/// Argument too big to go into FPU registers in arm64.
-void testPassStruct40BytesHomogeneousDouble() {
-  final a0Pointer = calloc<Struct40BytesHomogeneousDouble>();
-  final Struct40BytesHomogeneousDouble a0 = a0Pointer.ref;
-
-  a0.a0 = -1.0;
-  a0.a1 = 2.0;
-  a0.a2 = -3.0;
-  a0.a3 = 4.0;
-  a0.a4 = -5.0;
-
-  final result = passStruct40BytesHomogeneousDouble(a0);
-
-  print("result = $result");
-
-  Expect.approxEquals(-3.0, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passStruct1024BytesHomogeneousUint64 = ffiTestFunctions.lookupFunction<
-        Uint64 Function(Struct1024BytesHomogeneousUint64),
-        int Function(Struct1024BytesHomogeneousUint64)>(
-    "PassStruct1024BytesHomogeneousUint64");
-
-/// Test 1kb struct.
-void testPassStruct1024BytesHomogeneousUint64() {
-  final a0Pointer = calloc<Struct1024BytesHomogeneousUint64>();
-  final Struct1024BytesHomogeneousUint64 a0 = a0Pointer.ref;
-
-  a0.a0 = 1;
-  a0.a1 = 2;
-  a0.a2 = 3;
-  a0.a3 = 4;
-  a0.a4 = 5;
-  a0.a5 = 6;
-  a0.a6 = 7;
-  a0.a7 = 8;
-  a0.a8 = 9;
-  a0.a9 = 10;
-  a0.a10 = 11;
-  a0.a11 = 12;
-  a0.a12 = 13;
-  a0.a13 = 14;
-  a0.a14 = 15;
-  a0.a15 = 16;
-  a0.a16 = 17;
-  a0.a17 = 18;
-  a0.a18 = 19;
-  a0.a19 = 20;
-  a0.a20 = 21;
-  a0.a21 = 22;
-  a0.a22 = 23;
-  a0.a23 = 24;
-  a0.a24 = 25;
-  a0.a25 = 26;
-  a0.a26 = 27;
-  a0.a27 = 28;
-  a0.a28 = 29;
-  a0.a29 = 30;
-  a0.a30 = 31;
-  a0.a31 = 32;
-  a0.a32 = 33;
-  a0.a33 = 34;
-  a0.a34 = 35;
-  a0.a35 = 36;
-  a0.a36 = 37;
-  a0.a37 = 38;
-  a0.a38 = 39;
-  a0.a39 = 40;
-  a0.a40 = 41;
-  a0.a41 = 42;
-  a0.a42 = 43;
-  a0.a43 = 44;
-  a0.a44 = 45;
-  a0.a45 = 46;
-  a0.a46 = 47;
-  a0.a47 = 48;
-  a0.a48 = 49;
-  a0.a49 = 50;
-  a0.a50 = 51;
-  a0.a51 = 52;
-  a0.a52 = 53;
-  a0.a53 = 54;
-  a0.a54 = 55;
-  a0.a55 = 56;
-  a0.a56 = 57;
-  a0.a57 = 58;
-  a0.a58 = 59;
-  a0.a59 = 60;
-  a0.a60 = 61;
-  a0.a61 = 62;
-  a0.a62 = 63;
-  a0.a63 = 64;
-  a0.a64 = 65;
-  a0.a65 = 66;
-  a0.a66 = 67;
-  a0.a67 = 68;
-  a0.a68 = 69;
-  a0.a69 = 70;
-  a0.a70 = 71;
-  a0.a71 = 72;
-  a0.a72 = 73;
-  a0.a73 = 74;
-  a0.a74 = 75;
-  a0.a75 = 76;
-  a0.a76 = 77;
-  a0.a77 = 78;
-  a0.a78 = 79;
-  a0.a79 = 80;
-  a0.a80 = 81;
-  a0.a81 = 82;
-  a0.a82 = 83;
-  a0.a83 = 84;
-  a0.a84 = 85;
-  a0.a85 = 86;
-  a0.a86 = 87;
-  a0.a87 = 88;
-  a0.a88 = 89;
-  a0.a89 = 90;
-  a0.a90 = 91;
-  a0.a91 = 92;
-  a0.a92 = 93;
-  a0.a93 = 94;
-  a0.a94 = 95;
-  a0.a95 = 96;
-  a0.a96 = 97;
-  a0.a97 = 98;
-  a0.a98 = 99;
-  a0.a99 = 100;
-  a0.a100 = 101;
-  a0.a101 = 102;
-  a0.a102 = 103;
-  a0.a103 = 104;
-  a0.a104 = 105;
-  a0.a105 = 106;
-  a0.a106 = 107;
-  a0.a107 = 108;
-  a0.a108 = 109;
-  a0.a109 = 110;
-  a0.a110 = 111;
-  a0.a111 = 112;
-  a0.a112 = 113;
-  a0.a113 = 114;
-  a0.a114 = 115;
-  a0.a115 = 116;
-  a0.a116 = 117;
-  a0.a117 = 118;
-  a0.a118 = 119;
-  a0.a119 = 120;
-  a0.a120 = 121;
-  a0.a121 = 122;
-  a0.a122 = 123;
-  a0.a123 = 124;
-  a0.a124 = 125;
-  a0.a125 = 126;
-  a0.a126 = 127;
-  a0.a127 = 128;
-
-  final result = passStruct1024BytesHomogeneousUint64(a0);
-
-  print("result = $result");
-
-  Expect.equals(8256, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passFloatStruct16BytesHomogeneousFloatFloatStruct1 =
-    ffiTestFunctions.lookupFunction<
-        Float Function(
-            Float,
-            Struct16BytesHomogeneousFloat,
-            Float,
-            Struct16BytesHomogeneousFloat,
-            Float,
-            Struct16BytesHomogeneousFloat,
-            Float,
-            Struct16BytesHomogeneousFloat,
-            Float),
-        double Function(
-            double,
-            Struct16BytesHomogeneousFloat,
-            double,
-            Struct16BytesHomogeneousFloat,
-            double,
-            Struct16BytesHomogeneousFloat,
-            double,
-            Struct16BytesHomogeneousFloat,
-            double)>("PassFloatStruct16BytesHomogeneousFloatFloatStruct1");
-
-/// Tests the alignment of structs in FPU registers and backfilling.
-void testPassFloatStruct16BytesHomogeneousFloatFloatStruct1() {
-  double a0;
-  final a1Pointer = calloc<Struct16BytesHomogeneousFloat>();
-  final Struct16BytesHomogeneousFloat a1 = a1Pointer.ref;
-  double a2;
-  final a3Pointer = calloc<Struct16BytesHomogeneousFloat>();
-  final Struct16BytesHomogeneousFloat a3 = a3Pointer.ref;
-  double a4;
-  final a5Pointer = calloc<Struct16BytesHomogeneousFloat>();
-  final Struct16BytesHomogeneousFloat a5 = a5Pointer.ref;
-  double a6;
-  final a7Pointer = calloc<Struct16BytesHomogeneousFloat>();
-  final Struct16BytesHomogeneousFloat a7 = a7Pointer.ref;
-  double a8;
-
-  a0 = -1.0;
-  a1.a0 = 2.0;
-  a1.a1 = -3.0;
-  a1.a2 = 4.0;
-  a1.a3 = -5.0;
-  a2 = 6.0;
-  a3.a0 = -7.0;
-  a3.a1 = 8.0;
-  a3.a2 = -9.0;
-  a3.a3 = 10.0;
-  a4 = -11.0;
-  a5.a0 = 12.0;
-  a5.a1 = -13.0;
-  a5.a2 = 14.0;
-  a5.a3 = -15.0;
-  a6 = 16.0;
-  a7.a0 = -17.0;
-  a7.a1 = 18.0;
-  a7.a2 = -19.0;
-  a7.a3 = 20.0;
-  a8 = -21.0;
-
-  final result = passFloatStruct16BytesHomogeneousFloatFloatStruct1(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8);
-
-  print("result = $result");
-
-  Expect.approxEquals(-11.0, result);
-
-  calloc.free(a1Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a7Pointer);
-}
-
-final passFloatStruct32BytesHomogeneousDoubleFloatStruct =
-    ffiTestFunctions.lookupFunction<
-        Double Function(
-            Float,
-            Struct32BytesHomogeneousDouble,
-            Float,
-            Struct32BytesHomogeneousDouble,
-            Float,
-            Struct32BytesHomogeneousDouble,
-            Float,
-            Struct32BytesHomogeneousDouble,
-            Float),
-        double Function(
-            double,
-            Struct32BytesHomogeneousDouble,
-            double,
-            Struct32BytesHomogeneousDouble,
-            double,
-            Struct32BytesHomogeneousDouble,
-            double,
-            Struct32BytesHomogeneousDouble,
-            double)>("PassFloatStruct32BytesHomogeneousDoubleFloatStruct");
-
-/// Tests the alignment of structs in FPU registers and backfilling.
-void testPassFloatStruct32BytesHomogeneousDoubleFloatStruct() {
-  double a0;
-  final a1Pointer = calloc<Struct32BytesHomogeneousDouble>();
-  final Struct32BytesHomogeneousDouble a1 = a1Pointer.ref;
-  double a2;
-  final a3Pointer = calloc<Struct32BytesHomogeneousDouble>();
-  final Struct32BytesHomogeneousDouble a3 = a3Pointer.ref;
-  double a4;
-  final a5Pointer = calloc<Struct32BytesHomogeneousDouble>();
-  final Struct32BytesHomogeneousDouble a5 = a5Pointer.ref;
-  double a6;
-  final a7Pointer = calloc<Struct32BytesHomogeneousDouble>();
-  final Struct32BytesHomogeneousDouble a7 = a7Pointer.ref;
-  double a8;
-
-  a0 = -1.0;
-  a1.a0 = 2.0;
-  a1.a1 = -3.0;
-  a1.a2 = 4.0;
-  a1.a3 = -5.0;
-  a2 = 6.0;
-  a3.a0 = -7.0;
-  a3.a1 = 8.0;
-  a3.a2 = -9.0;
-  a3.a3 = 10.0;
-  a4 = -11.0;
-  a5.a0 = 12.0;
-  a5.a1 = -13.0;
-  a5.a2 = 14.0;
-  a5.a3 = -15.0;
-  a6 = 16.0;
-  a7.a0 = -17.0;
-  a7.a1 = 18.0;
-  a7.a2 = -19.0;
-  a7.a3 = 20.0;
-  a8 = -21.0;
-
-  final result = passFloatStruct32BytesHomogeneousDoubleFloatStruct(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8);
-
-  print("result = $result");
-
-  Expect.approxEquals(-11.0, result);
-
-  calloc.free(a1Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a7Pointer);
-}
-
-final passInt8Struct16BytesMixedInt8Struct16BytesMixedIn =
-    ffiTestFunctions.lookupFunction<
-        Double Function(Int8, Struct16BytesMixed, Int8, Struct16BytesMixed,
-            Int8, Struct16BytesMixed, Int8, Struct16BytesMixed, Int8),
-        double Function(
-            int,
-            Struct16BytesMixed,
-            int,
-            Struct16BytesMixed,
-            int,
-            Struct16BytesMixed,
-            int,
-            Struct16BytesMixed,
-            int)>("PassInt8Struct16BytesMixedInt8Struct16BytesMixedIn");
-
-/// Tests the alignment of structs in integers registers and on the stack.
-/// Arm32 aligns this struct at 8.
-/// Also, arm32 allocates the second struct partially in registers, partially
-/// on stack.
-/// Test backfilling of integer registers.
-void testPassInt8Struct16BytesMixedInt8Struct16BytesMixedIn() {
-  int a0;
-  final a1Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a1 = a1Pointer.ref;
-  int a2;
-  final a3Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a3 = a3Pointer.ref;
-  int a4;
-  final a5Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a5 = a5Pointer.ref;
-  int a6;
-  final a7Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a7 = a7Pointer.ref;
-  int a8;
-
-  a0 = -1;
-  a1.a0 = 2.0;
-  a1.a1 = -3;
-  a2 = 4;
-  a3.a0 = -5.0;
-  a3.a1 = 6;
-  a4 = -7;
-  a5.a0 = 8.0;
-  a5.a1 = -9;
-  a6 = 10;
-  a7.a0 = -11.0;
-  a7.a1 = 12;
-  a8 = -13;
-
-  final result = passInt8Struct16BytesMixedInt8Struct16BytesMixedIn(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8);
-
-  print("result = $result");
-
-  Expect.approxEquals(-7.0, result);
-
-  calloc.free(a1Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a7Pointer);
-}
-
-final passDoublex6Struct16BytesMixedx4Int32 = ffiTestFunctions.lookupFunction<
-    Double Function(
-        Double,
-        Double,
-        Double,
-        Double,
-        Double,
-        Double,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Int32),
-    double Function(
-        double,
-        double,
-        double,
-        double,
-        double,
-        double,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        int)>("PassDoublex6Struct16BytesMixedx4Int32");
-
-/// On Linux x64, it will exhaust xmm registers first, after 6 doubles and 2
-/// structs. The rest of the structs will go on the stack.
-/// The int will be backfilled into the int register.
-void testPassDoublex6Struct16BytesMixedx4Int32() {
-  double a0;
-  double a1;
-  double a2;
-  double a3;
-  double a4;
-  double a5;
-  final a6Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a9 = a9Pointer.ref;
-  int a10;
-
-  a0 = -1.0;
-  a1 = 2.0;
-  a2 = -3.0;
-  a3 = 4.0;
-  a4 = -5.0;
-  a5 = 6.0;
-  a6.a0 = -7.0;
-  a6.a1 = 8;
-  a7.a0 = -9.0;
-  a7.a1 = 10;
-  a8.a0 = -11.0;
-  a8.a1 = 12;
-  a9.a0 = -13.0;
-  a9.a1 = 14;
-  a10 = -15;
-
-  final result = passDoublex6Struct16BytesMixedx4Int32(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
-
-  print("result = $result");
-
-  Expect.approxEquals(-8.0, result);
-
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passInt32x4Struct16BytesMixedx4Double = ffiTestFunctions.lookupFunction<
-    Double Function(Int32, Int32, Int32, Int32, Struct16BytesMixed,
-        Struct16BytesMixed, Struct16BytesMixed, Struct16BytesMixed, Double),
-    double Function(
-        int,
-        int,
-        int,
-        int,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        Struct16BytesMixed,
-        double)>("PassInt32x4Struct16BytesMixedx4Double");
-
-/// On Linux x64, it will exhaust int registers first.
-/// The rest of the structs will go on the stack.
-/// The double will be backfilled into the xmm register.
-void testPassInt32x4Struct16BytesMixedx4Double() {
-  int a0;
-  int a1;
-  int a2;
-  int a3;
-  final a4Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct16BytesMixed>();
-  final Struct16BytesMixed a7 = a7Pointer.ref;
-  double a8;
-
-  a0 = -1;
-  a1 = 2;
-  a2 = -3;
-  a3 = 4;
-  a4.a0 = -5.0;
-  a4.a1 = 6;
-  a5.a0 = -7.0;
-  a5.a1 = 8;
-  a6.a0 = -9.0;
-  a6.a1 = 10;
-  a7.a0 = -11.0;
-  a7.a1 = 12;
-  a8 = -13.0;
-
-  final result =
-      passInt32x4Struct16BytesMixedx4Double(a0, a1, a2, a3, a4, a5, a6, a7, a8);
-
-  print("result = $result");
-
-  Expect.approxEquals(-7.0, result);
-
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-}
-
-final passStruct40BytesHomogeneousDoubleStruct4BytesHomo =
-    ffiTestFunctions.lookupFunction<
-            Double Function(Struct40BytesHomogeneousDouble,
-                Struct4BytesHomogeneousInt16, Struct8BytesHomogeneousFloat),
-            double Function(Struct40BytesHomogeneousDouble,
-                Struct4BytesHomogeneousInt16, Struct8BytesHomogeneousFloat)>(
-        "PassStruct40BytesHomogeneousDoubleStruct4BytesHomo");
-
-/// On various architectures, first struct is allocated on stack.
-/// Check that the other two arguments are allocated on registers.
-void testPassStruct40BytesHomogeneousDoubleStruct4BytesHomo() {
-  final a0Pointer = calloc<Struct40BytesHomogeneousDouble>();
-  final Struct40BytesHomogeneousDouble a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a2 = a2Pointer.ref;
-
-  a0.a0 = -1.0;
-  a0.a1 = 2.0;
-  a0.a2 = -3.0;
-  a0.a3 = 4.0;
-  a0.a4 = -5.0;
-  a1.a0 = 6;
-  a1.a1 = -7;
-  a2.a0 = 8.0;
-  a2.a1 = -9.0;
-
-  final result = passStruct40BytesHomogeneousDoubleStruct4BytesHomo(a0, a1, a2);
-
-  print("result = $result");
-
-  Expect.approxEquals(-5.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-}
-
-final passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int =
-    ffiTestFunctions.lookupFunction<
-        Double Function(
-            Int32,
-            Int32,
-            Int32,
-            Int32,
-            Int32,
-            Int32,
-            Int32,
-            Int32,
-            Double,
-            Double,
-            Double,
-            Double,
-            Double,
-            Double,
-            Double,
-            Double,
-            Int64,
-            Int8,
-            Struct1ByteInt,
-            Int64,
-            Int8,
-            Struct4BytesHomogeneousInt16,
-            Int64,
-            Int8,
-            Struct8BytesInt,
-            Int64,
-            Int8,
-            Struct8BytesHomogeneousFloat,
-            Int64,
-            Int8,
-            Struct8BytesMixed,
-            Int64,
-            Int8,
-            StructAlignmentInt16,
-            Int64,
-            Int8,
-            StructAlignmentInt32,
-            Int64,
-            Int8,
-            StructAlignmentInt64),
-        double Function(
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            double,
-            double,
-            double,
-            double,
-            double,
-            double,
-            double,
-            double,
-            int,
-            int,
-            Struct1ByteInt,
-            int,
-            int,
-            Struct4BytesHomogeneousInt16,
-            int,
-            int,
-            Struct8BytesInt,
-            int,
-            int,
-            Struct8BytesHomogeneousFloat,
-            int,
-            int,
-            Struct8BytesMixed,
-            int,
-            int,
-            StructAlignmentInt16,
-            int,
-            int,
-            StructAlignmentInt32,
-            int,
-            int,
-            StructAlignmentInt64)>("PassInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int");
-
-/// Test alignment and padding of 16 byte int within struct.
-void testPassInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int() {
-  int a0;
-  int a1;
-  int a2;
-  int a3;
-  int a4;
-  int a5;
-  int a6;
-  int a7;
-  double a8;
-  double a9;
-  double a10;
-  double a11;
-  double a12;
-  double a13;
-  double a14;
-  double a15;
-  int a16;
-  int a17;
-  final a18Pointer = calloc<Struct1ByteInt>();
-  final Struct1ByteInt a18 = a18Pointer.ref;
-  int a19;
-  int a20;
-  final a21Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a21 = a21Pointer.ref;
-  int a22;
-  int a23;
-  final a24Pointer = calloc<Struct8BytesInt>();
-  final Struct8BytesInt a24 = a24Pointer.ref;
-  int a25;
-  int a26;
-  final a27Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a27 = a27Pointer.ref;
-  int a28;
-  int a29;
-  final a30Pointer = calloc<Struct8BytesMixed>();
-  final Struct8BytesMixed a30 = a30Pointer.ref;
-  int a31;
-  int a32;
-  final a33Pointer = calloc<StructAlignmentInt16>();
-  final StructAlignmentInt16 a33 = a33Pointer.ref;
-  int a34;
-  int a35;
-  final a36Pointer = calloc<StructAlignmentInt32>();
-  final StructAlignmentInt32 a36 = a36Pointer.ref;
-  int a37;
-  int a38;
-  final a39Pointer = calloc<StructAlignmentInt64>();
-  final StructAlignmentInt64 a39 = a39Pointer.ref;
-
-  a0 = -1;
-  a1 = 2;
-  a2 = -3;
-  a3 = 4;
-  a4 = -5;
-  a5 = 6;
-  a6 = -7;
-  a7 = 8;
-  a8 = -9.0;
-  a9 = 10.0;
-  a10 = -11.0;
-  a11 = 12.0;
-  a12 = -13.0;
-  a13 = 14.0;
-  a14 = -15.0;
-  a15 = 16.0;
-  a16 = -17;
-  a17 = 18;
-  a18.a0 = -19;
-  a19 = 20;
-  a20 = -21;
-  a21.a0 = 22;
-  a21.a1 = -23;
-  a22 = 24;
-  a23 = -25;
-  a24.a0 = 26;
-  a24.a1 = -27;
-  a24.a2 = 28;
-  a25 = -29;
-  a26 = 30;
-  a27.a0 = -31.0;
-  a27.a1 = 32.0;
-  a28 = -33;
-  a29 = 34;
-  a30.a0 = -35.0;
-  a30.a1 = 36;
-  a30.a2 = -37;
-  a31 = 38;
-  a32 = -39;
-  a33.a0 = 40;
-  a33.a1 = -41;
-  a33.a2 = 42;
-  a34 = -43;
-  a35 = 44;
-  a36.a0 = -45;
-  a36.a1 = 46;
-  a36.a2 = -47;
-  a37 = 48;
-  a38 = -49;
-  a39.a0 = 50;
-  a39.a1 = -51;
-  a39.a2 = 52;
-
-  final result = passInt32x8Doublex8Int64Int8Struct1ByteIntInt64Int(
-      a0,
-      a1,
-      a2,
-      a3,
-      a4,
-      a5,
-      a6,
-      a7,
-      a8,
-      a9,
-      a10,
-      a11,
-      a12,
-      a13,
-      a14,
-      a15,
-      a16,
-      a17,
-      a18,
-      a19,
-      a20,
-      a21,
-      a22,
-      a23,
-      a24,
-      a25,
-      a26,
-      a27,
-      a28,
-      a29,
-      a30,
-      a31,
-      a32,
-      a33,
-      a34,
-      a35,
-      a36,
-      a37,
-      a38,
-      a39);
-
-  print("result = $result");
-
-  Expect.approxEquals(26.0, result);
-
-  calloc.free(a18Pointer);
-  calloc.free(a21Pointer);
-  calloc.free(a24Pointer);
-  calloc.free(a27Pointer);
-  calloc.free(a30Pointer);
-  calloc.free(a33Pointer);
-  calloc.free(a36Pointer);
-  calloc.free(a39Pointer);
-}
-
-final passStructAlignmentInt16 = ffiTestFunctions.lookupFunction<
-    Int64 Function(StructAlignmentInt16),
-    int Function(StructAlignmentInt16)>("PassStructAlignmentInt16");
-
-/// Test alignment and padding of 16 byte int within struct.
-void testPassStructAlignmentInt16() {
-  final a0Pointer = calloc<StructAlignmentInt16>();
-  final StructAlignmentInt16 a0 = a0Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a0.a2 = -3;
-
-  final result = passStructAlignmentInt16(a0);
-
-  print("result = $result");
-
-  Expect.equals(-2, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passStructAlignmentInt32 = ffiTestFunctions.lookupFunction<
-    Int64 Function(StructAlignmentInt32),
-    int Function(StructAlignmentInt32)>("PassStructAlignmentInt32");
-
-/// Test alignment and padding of 32 byte int within struct.
-void testPassStructAlignmentInt32() {
-  final a0Pointer = calloc<StructAlignmentInt32>();
-  final StructAlignmentInt32 a0 = a0Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a0.a2 = -3;
-
-  final result = passStructAlignmentInt32(a0);
-
-  print("result = $result");
-
-  Expect.equals(-2, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passStructAlignmentInt64 = ffiTestFunctions.lookupFunction<
-    Int64 Function(StructAlignmentInt64),
-    int Function(StructAlignmentInt64)>("PassStructAlignmentInt64");
-
-/// Test alignment and padding of 64 byte int within struct.
-void testPassStructAlignmentInt64() {
-  final a0Pointer = calloc<StructAlignmentInt64>();
-  final StructAlignmentInt64 a0 = a0Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a0.a2 = -3;
-
-  final result = passStructAlignmentInt64(a0);
-
-  print("result = $result");
-
-  Expect.equals(-2, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passStruct8BytesNestedIntx10 = ffiTestFunctions.lookupFunction<
-    Int64 Function(
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt),
-    int Function(
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt,
-        Struct8BytesNestedInt)>("PassStruct8BytesNestedIntx10");
-
-/// Simple nested struct. No alignment gaps on any architectures.
-/// 10 arguments exhaust registers on all platforms.
-void testPassStruct8BytesNestedIntx10() {
-  final a0Pointer = calloc<Struct8BytesNestedInt>();
-  final Struct8BytesNestedInt a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct8BytesNestedInt>();
-  final Struct8BytesNestedInt a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct8BytesNestedInt>();
-  final Struct8BytesNestedInt a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct8BytesNestedInt>();
-  final Struct8BytesNestedInt a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct8BytesNestedInt>();
-  final Struct8BytesNestedInt a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct8BytesNestedInt>();
-  final Struct8BytesNestedInt a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct8BytesNestedInt>();
-  final Struct8BytesNestedInt a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct8BytesNestedInt>();
-  final Struct8BytesNestedInt a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct8BytesNestedInt>();
-  final Struct8BytesNestedInt a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct8BytesNestedInt>();
-  final Struct8BytesNestedInt a9 = a9Pointer.ref;
-
-  a0.a0.a0 = -1;
-  a0.a0.a1 = 2;
-  a0.a1.a0 = -3;
-  a0.a1.a1 = 4;
-  a1.a0.a0 = -5;
-  a1.a0.a1 = 6;
-  a1.a1.a0 = -7;
-  a1.a1.a1 = 8;
-  a2.a0.a0 = -9;
-  a2.a0.a1 = 10;
-  a2.a1.a0 = -11;
-  a2.a1.a1 = 12;
-  a3.a0.a0 = -13;
-  a3.a0.a1 = 14;
-  a3.a1.a0 = -15;
-  a3.a1.a1 = 16;
-  a4.a0.a0 = -17;
-  a4.a0.a1 = 18;
-  a4.a1.a0 = -19;
-  a4.a1.a1 = 20;
-  a5.a0.a0 = -21;
-  a5.a0.a1 = 22;
-  a5.a1.a0 = -23;
-  a5.a1.a1 = 24;
-  a6.a0.a0 = -25;
-  a6.a0.a1 = 26;
-  a6.a1.a0 = -27;
-  a6.a1.a1 = 28;
-  a7.a0.a0 = -29;
-  a7.a0.a1 = 30;
-  a7.a1.a0 = -31;
-  a7.a1.a1 = 32;
-  a8.a0.a0 = -33;
-  a8.a0.a1 = 34;
-  a8.a1.a0 = -35;
-  a8.a1.a1 = 36;
-  a9.a0.a0 = -37;
-  a9.a0.a1 = 38;
-  a9.a1.a0 = -39;
-  a9.a1.a1 = 40;
-
-  final result =
-      passStruct8BytesNestedIntx10(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(20, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct8BytesNestedFloatx10 = ffiTestFunctions.lookupFunction<
-    Float Function(
-        Struct8BytesNestedFloat,
-        Struct8BytesNestedFloat,
-        Struct8BytesNestedFloat,
-        Struct8BytesNestedFloat,
-        Struct8BytesNestedFloat,
-        Struct8BytesNestedFloat,
-        Struct8BytesNestedFloat,
-        Struct8BytesNestedFloat,
-        Struct8BytesNestedFloat,
-        Struct8BytesNestedFloat),
-    double Function(
-        Struct8BytesNestedFloat,
-        Struct8BytesNestedFloat,
-        Struct8BytesNestedFloat,
-        Struct8BytesNestedFloat,
-        Struct8BytesNestedFloat,
-        Struct8BytesNestedFloat,
-        Struct8BytesNestedFloat,
-        Struct8BytesNestedFloat,
-        Struct8BytesNestedFloat,
-        Struct8BytesNestedFloat)>("PassStruct8BytesNestedFloatx10");
-
-/// Simple nested struct. No alignment gaps on any architectures.
-/// 10 arguments exhaust fpu registers on all platforms.
-void testPassStruct8BytesNestedFloatx10() {
-  final a0Pointer = calloc<Struct8BytesNestedFloat>();
-  final Struct8BytesNestedFloat a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct8BytesNestedFloat>();
-  final Struct8BytesNestedFloat a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct8BytesNestedFloat>();
-  final Struct8BytesNestedFloat a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct8BytesNestedFloat>();
-  final Struct8BytesNestedFloat a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct8BytesNestedFloat>();
-  final Struct8BytesNestedFloat a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct8BytesNestedFloat>();
-  final Struct8BytesNestedFloat a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct8BytesNestedFloat>();
-  final Struct8BytesNestedFloat a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct8BytesNestedFloat>();
-  final Struct8BytesNestedFloat a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct8BytesNestedFloat>();
-  final Struct8BytesNestedFloat a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct8BytesNestedFloat>();
-  final Struct8BytesNestedFloat a9 = a9Pointer.ref;
-
-  a0.a0.a0 = -1.0;
-  a0.a1.a0 = 2.0;
-  a1.a0.a0 = -3.0;
-  a1.a1.a0 = 4.0;
-  a2.a0.a0 = -5.0;
-  a2.a1.a0 = 6.0;
-  a3.a0.a0 = -7.0;
-  a3.a1.a0 = 8.0;
-  a4.a0.a0 = -9.0;
-  a4.a1.a0 = 10.0;
-  a5.a0.a0 = -11.0;
-  a5.a1.a0 = 12.0;
-  a6.a0.a0 = -13.0;
-  a6.a1.a0 = 14.0;
-  a7.a0.a0 = -15.0;
-  a7.a1.a0 = 16.0;
-  a8.a0.a0 = -17.0;
-  a8.a1.a0 = 18.0;
-  a9.a0.a0 = -19.0;
-  a9.a1.a0 = 20.0;
-
-  final result =
-      passStruct8BytesNestedFloatx10(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.approxEquals(10.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct8BytesNestedFloat2x10 = ffiTestFunctions.lookupFunction<
-    Float Function(
-        Struct8BytesNestedFloat2,
-        Struct8BytesNestedFloat2,
-        Struct8BytesNestedFloat2,
-        Struct8BytesNestedFloat2,
-        Struct8BytesNestedFloat2,
-        Struct8BytesNestedFloat2,
-        Struct8BytesNestedFloat2,
-        Struct8BytesNestedFloat2,
-        Struct8BytesNestedFloat2,
-        Struct8BytesNestedFloat2),
-    double Function(
-        Struct8BytesNestedFloat2,
-        Struct8BytesNestedFloat2,
-        Struct8BytesNestedFloat2,
-        Struct8BytesNestedFloat2,
-        Struct8BytesNestedFloat2,
-        Struct8BytesNestedFloat2,
-        Struct8BytesNestedFloat2,
-        Struct8BytesNestedFloat2,
-        Struct8BytesNestedFloat2,
-        Struct8BytesNestedFloat2)>("PassStruct8BytesNestedFloat2x10");
-
-/// Simple nested struct. No alignment gaps on any architectures.
-/// 10 arguments exhaust fpu registers on all platforms.
-/// The nesting is irregular, testing homogenous float rules on arm and arm64,
-/// and the fpu register usage on x64.
-void testPassStruct8BytesNestedFloat2x10() {
-  final a0Pointer = calloc<Struct8BytesNestedFloat2>();
-  final Struct8BytesNestedFloat2 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct8BytesNestedFloat2>();
-  final Struct8BytesNestedFloat2 a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct8BytesNestedFloat2>();
-  final Struct8BytesNestedFloat2 a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct8BytesNestedFloat2>();
-  final Struct8BytesNestedFloat2 a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct8BytesNestedFloat2>();
-  final Struct8BytesNestedFloat2 a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct8BytesNestedFloat2>();
-  final Struct8BytesNestedFloat2 a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct8BytesNestedFloat2>();
-  final Struct8BytesNestedFloat2 a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct8BytesNestedFloat2>();
-  final Struct8BytesNestedFloat2 a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct8BytesNestedFloat2>();
-  final Struct8BytesNestedFloat2 a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct8BytesNestedFloat2>();
-  final Struct8BytesNestedFloat2 a9 = a9Pointer.ref;
-
-  a0.a0.a0 = -1.0;
-  a0.a1 = 2.0;
-  a1.a0.a0 = -3.0;
-  a1.a1 = 4.0;
-  a2.a0.a0 = -5.0;
-  a2.a1 = 6.0;
-  a3.a0.a0 = -7.0;
-  a3.a1 = 8.0;
-  a4.a0.a0 = -9.0;
-  a4.a1 = 10.0;
-  a5.a0.a0 = -11.0;
-  a5.a1 = 12.0;
-  a6.a0.a0 = -13.0;
-  a6.a1 = 14.0;
-  a7.a0.a0 = -15.0;
-  a7.a1 = 16.0;
-  a8.a0.a0 = -17.0;
-  a8.a1 = 18.0;
-  a9.a0.a0 = -19.0;
-  a9.a1 = 20.0;
-
-  final result =
-      passStruct8BytesNestedFloat2x10(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.approxEquals(10.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct8BytesNestedMixedx10 = ffiTestFunctions.lookupFunction<
-    Double Function(
-        Struct8BytesNestedMixed,
-        Struct8BytesNestedMixed,
-        Struct8BytesNestedMixed,
-        Struct8BytesNestedMixed,
-        Struct8BytesNestedMixed,
-        Struct8BytesNestedMixed,
-        Struct8BytesNestedMixed,
-        Struct8BytesNestedMixed,
-        Struct8BytesNestedMixed,
-        Struct8BytesNestedMixed),
-    double Function(
-        Struct8BytesNestedMixed,
-        Struct8BytesNestedMixed,
-        Struct8BytesNestedMixed,
-        Struct8BytesNestedMixed,
-        Struct8BytesNestedMixed,
-        Struct8BytesNestedMixed,
-        Struct8BytesNestedMixed,
-        Struct8BytesNestedMixed,
-        Struct8BytesNestedMixed,
-        Struct8BytesNestedMixed)>("PassStruct8BytesNestedMixedx10");
-
-/// Simple nested struct. No alignment gaps on any architectures.
-/// 10 arguments exhaust all registers on all platforms.
-void testPassStruct8BytesNestedMixedx10() {
-  final a0Pointer = calloc<Struct8BytesNestedMixed>();
-  final Struct8BytesNestedMixed a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct8BytesNestedMixed>();
-  final Struct8BytesNestedMixed a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct8BytesNestedMixed>();
-  final Struct8BytesNestedMixed a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct8BytesNestedMixed>();
-  final Struct8BytesNestedMixed a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct8BytesNestedMixed>();
-  final Struct8BytesNestedMixed a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct8BytesNestedMixed>();
-  final Struct8BytesNestedMixed a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct8BytesNestedMixed>();
-  final Struct8BytesNestedMixed a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct8BytesNestedMixed>();
-  final Struct8BytesNestedMixed a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct8BytesNestedMixed>();
-  final Struct8BytesNestedMixed a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct8BytesNestedMixed>();
-  final Struct8BytesNestedMixed a9 = a9Pointer.ref;
-
-  a0.a0.a0 = -1;
-  a0.a0.a1 = 2;
-  a0.a1.a0 = -3.0;
-  a1.a0.a0 = 4;
-  a1.a0.a1 = -5;
-  a1.a1.a0 = 6.0;
-  a2.a0.a0 = -7;
-  a2.a0.a1 = 8;
-  a2.a1.a0 = -9.0;
-  a3.a0.a0 = 10;
-  a3.a0.a1 = -11;
-  a3.a1.a0 = 12.0;
-  a4.a0.a0 = -13;
-  a4.a0.a1 = 14;
-  a4.a1.a0 = -15.0;
-  a5.a0.a0 = 16;
-  a5.a0.a1 = -17;
-  a5.a1.a0 = 18.0;
-  a6.a0.a0 = -19;
-  a6.a0.a1 = 20;
-  a6.a1.a0 = -21.0;
-  a7.a0.a0 = 22;
-  a7.a0.a1 = -23;
-  a7.a1.a0 = 24.0;
-  a8.a0.a0 = -25;
-  a8.a0.a1 = 26;
-  a8.a1.a0 = -27.0;
-  a9.a0.a0 = 28;
-  a9.a0.a1 = -29;
-  a9.a1.a0 = 30.0;
-
-  final result =
-      passStruct8BytesNestedMixedx10(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.approxEquals(15.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct16BytesNestedIntx2 = ffiTestFunctions.lookupFunction<
-    Int64 Function(Struct16BytesNestedInt, Struct16BytesNestedInt),
-    int Function(Struct16BytesNestedInt,
-        Struct16BytesNestedInt)>("PassStruct16BytesNestedIntx2");
-
-/// Deeper nested struct to test recursive member access.
-void testPassStruct16BytesNestedIntx2() {
-  final a0Pointer = calloc<Struct16BytesNestedInt>();
-  final Struct16BytesNestedInt a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct16BytesNestedInt>();
-  final Struct16BytesNestedInt a1 = a1Pointer.ref;
-
-  a0.a0.a0.a0 = -1;
-  a0.a0.a0.a1 = 2;
-  a0.a0.a1.a0 = -3;
-  a0.a0.a1.a1 = 4;
-  a0.a1.a0.a0 = -5;
-  a0.a1.a0.a1 = 6;
-  a0.a1.a1.a0 = -7;
-  a0.a1.a1.a1 = 8;
-  a1.a0.a0.a0 = -9;
-  a1.a0.a0.a1 = 10;
-  a1.a0.a1.a0 = -11;
-  a1.a0.a1.a1 = 12;
-  a1.a1.a0.a0 = -13;
-  a1.a1.a0.a1 = 14;
-  a1.a1.a1.a0 = -15;
-  a1.a1.a1.a1 = 16;
-
-  final result = passStruct16BytesNestedIntx2(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(8, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-}
-
-final passStruct32BytesNestedIntx2 = ffiTestFunctions.lookupFunction<
-    Int64 Function(Struct32BytesNestedInt, Struct32BytesNestedInt),
-    int Function(Struct32BytesNestedInt,
-        Struct32BytesNestedInt)>("PassStruct32BytesNestedIntx2");
-
-/// Even deeper nested struct to test recursive member access.
-void testPassStruct32BytesNestedIntx2() {
-  final a0Pointer = calloc<Struct32BytesNestedInt>();
-  final Struct32BytesNestedInt a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct32BytesNestedInt>();
-  final Struct32BytesNestedInt a1 = a1Pointer.ref;
-
-  a0.a0.a0.a0.a0 = -1;
-  a0.a0.a0.a0.a1 = 2;
-  a0.a0.a0.a1.a0 = -3;
-  a0.a0.a0.a1.a1 = 4;
-  a0.a0.a1.a0.a0 = -5;
-  a0.a0.a1.a0.a1 = 6;
-  a0.a0.a1.a1.a0 = -7;
-  a0.a0.a1.a1.a1 = 8;
-  a0.a1.a0.a0.a0 = -9;
-  a0.a1.a0.a0.a1 = 10;
-  a0.a1.a0.a1.a0 = -11;
-  a0.a1.a0.a1.a1 = 12;
-  a0.a1.a1.a0.a0 = -13;
-  a0.a1.a1.a0.a1 = 14;
-  a0.a1.a1.a1.a0 = -15;
-  a0.a1.a1.a1.a1 = 16;
-  a1.a0.a0.a0.a0 = -17;
-  a1.a0.a0.a0.a1 = 18;
-  a1.a0.a0.a1.a0 = -19;
-  a1.a0.a0.a1.a1 = 20;
-  a1.a0.a1.a0.a0 = -21;
-  a1.a0.a1.a0.a1 = 22;
-  a1.a0.a1.a1.a0 = -23;
-  a1.a0.a1.a1.a1 = 24;
-  a1.a1.a0.a0.a0 = -25;
-  a1.a1.a0.a0.a1 = 26;
-  a1.a1.a0.a1.a0 = -27;
-  a1.a1.a0.a1.a1 = 28;
-  a1.a1.a1.a0.a0 = -29;
-  a1.a1.a1.a0.a1 = 30;
-  a1.a1.a1.a1.a0 = -31;
-  a1.a1.a1.a1.a1 = 32;
-
-  final result = passStruct32BytesNestedIntx2(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(16, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-}
-
-final passStructNestedIntStructAlignmentInt16 = ffiTestFunctions.lookupFunction<
-        Int64 Function(StructNestedIntStructAlignmentInt16),
-        int Function(StructNestedIntStructAlignmentInt16)>(
-    "PassStructNestedIntStructAlignmentInt16");
-
-/// Test alignment and padding of nested struct with 16 byte int.
-void testPassStructNestedIntStructAlignmentInt16() {
-  final a0Pointer = calloc<StructNestedIntStructAlignmentInt16>();
-  final StructNestedIntStructAlignmentInt16 a0 = a0Pointer.ref;
-
-  a0.a0.a0 = -1;
-  a0.a0.a1 = 2;
-  a0.a0.a2 = -3;
-  a0.a1.a0 = 4;
-  a0.a1.a1 = -5;
-  a0.a1.a2 = 6;
-
-  final result = passStructNestedIntStructAlignmentInt16(a0);
-
-  print("result = $result");
-
-  Expect.equals(3, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passStructNestedIntStructAlignmentInt32 = ffiTestFunctions.lookupFunction<
-        Int64 Function(StructNestedIntStructAlignmentInt32),
-        int Function(StructNestedIntStructAlignmentInt32)>(
-    "PassStructNestedIntStructAlignmentInt32");
-
-/// Test alignment and padding of nested struct with 32 byte int.
-void testPassStructNestedIntStructAlignmentInt32() {
-  final a0Pointer = calloc<StructNestedIntStructAlignmentInt32>();
-  final StructNestedIntStructAlignmentInt32 a0 = a0Pointer.ref;
-
-  a0.a0.a0 = -1;
-  a0.a0.a1 = 2;
-  a0.a0.a2 = -3;
-  a0.a1.a0 = 4;
-  a0.a1.a1 = -5;
-  a0.a1.a2 = 6;
-
-  final result = passStructNestedIntStructAlignmentInt32(a0);
-
-  print("result = $result");
-
-  Expect.equals(3, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passStructNestedIntStructAlignmentInt64 = ffiTestFunctions.lookupFunction<
-        Int64 Function(StructNestedIntStructAlignmentInt64),
-        int Function(StructNestedIntStructAlignmentInt64)>(
-    "PassStructNestedIntStructAlignmentInt64");
-
-/// Test alignment and padding of nested struct with 64 byte int.
-void testPassStructNestedIntStructAlignmentInt64() {
-  final a0Pointer = calloc<StructNestedIntStructAlignmentInt64>();
-  final StructNestedIntStructAlignmentInt64 a0 = a0Pointer.ref;
-
-  a0.a0.a0 = -1;
-  a0.a0.a1 = 2;
-  a0.a0.a2 = -3;
-  a0.a1.a0 = 4;
-  a0.a1.a1 = -5;
-  a0.a1.a2 = 6;
-
-  final result = passStructNestedIntStructAlignmentInt64(a0);
-
-  print("result = $result");
-
-  Expect.equals(3, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passStructNestedIrregularEvenBiggerx4 = ffiTestFunctions.lookupFunction<
-        Double Function(
-            StructNestedIrregularEvenBigger,
-            StructNestedIrregularEvenBigger,
-            StructNestedIrregularEvenBigger,
-            StructNestedIrregularEvenBigger),
-        double Function(
-            StructNestedIrregularEvenBigger,
-            StructNestedIrregularEvenBigger,
-            StructNestedIrregularEvenBigger,
-            StructNestedIrregularEvenBigger)>(
-    "PassStructNestedIrregularEvenBiggerx4");
-
-/// Return big irregular struct as smoke test.
-void testPassStructNestedIrregularEvenBiggerx4() {
-  final a0Pointer = calloc<StructNestedIrregularEvenBigger>();
-  final StructNestedIrregularEvenBigger a0 = a0Pointer.ref;
-  final a1Pointer = calloc<StructNestedIrregularEvenBigger>();
-  final StructNestedIrregularEvenBigger a1 = a1Pointer.ref;
-  final a2Pointer = calloc<StructNestedIrregularEvenBigger>();
-  final StructNestedIrregularEvenBigger a2 = a2Pointer.ref;
-  final a3Pointer = calloc<StructNestedIrregularEvenBigger>();
-  final StructNestedIrregularEvenBigger a3 = a3Pointer.ref;
-
-  a0.a0 = 1;
-  a0.a1.a0.a0 = 2;
-  a0.a1.a0.a1.a0.a0 = -3;
-  a0.a1.a0.a1.a0.a1 = 4;
-  a0.a1.a0.a1.a1.a0 = -5.0;
-  a0.a1.a0.a2 = 6;
-  a0.a1.a0.a3.a0.a0 = -7.0;
-  a0.a1.a0.a3.a1 = 8.0;
-  a0.a1.a0.a4 = 9;
-  a0.a1.a0.a5.a0.a0 = 10.0;
-  a0.a1.a0.a5.a1.a0 = -11.0;
-  a0.a1.a0.a6 = 12;
-  a0.a1.a1.a0.a0 = -13;
-  a0.a1.a1.a0.a1 = 14;
-  a0.a1.a1.a1.a0 = -15.0;
-  a0.a1.a2 = 16.0;
-  a0.a1.a3 = -17.0;
-  a0.a2.a0.a0 = 18;
-  a0.a2.a0.a1.a0.a0 = -19;
-  a0.a2.a0.a1.a0.a1 = 20;
-  a0.a2.a0.a1.a1.a0 = -21.0;
-  a0.a2.a0.a2 = 22;
-  a0.a2.a0.a3.a0.a0 = -23.0;
-  a0.a2.a0.a3.a1 = 24.0;
-  a0.a2.a0.a4 = 25;
-  a0.a2.a0.a5.a0.a0 = 26.0;
-  a0.a2.a0.a5.a1.a0 = -27.0;
-  a0.a2.a0.a6 = 28;
-  a0.a2.a1.a0.a0 = -29;
-  a0.a2.a1.a0.a1 = 30;
-  a0.a2.a1.a1.a0 = -31.0;
-  a0.a2.a2 = 32.0;
-  a0.a2.a3 = -33.0;
-  a0.a3 = 34.0;
-  a1.a0 = 35;
-  a1.a1.a0.a0 = 36;
-  a1.a1.a0.a1.a0.a0 = -37;
-  a1.a1.a0.a1.a0.a1 = 38;
-  a1.a1.a0.a1.a1.a0 = -39.0;
-  a1.a1.a0.a2 = 40;
-  a1.a1.a0.a3.a0.a0 = -41.0;
-  a1.a1.a0.a3.a1 = 42.0;
-  a1.a1.a0.a4 = 43;
-  a1.a1.a0.a5.a0.a0 = 44.0;
-  a1.a1.a0.a5.a1.a0 = -45.0;
-  a1.a1.a0.a6 = 46;
-  a1.a1.a1.a0.a0 = -47;
-  a1.a1.a1.a0.a1 = 48;
-  a1.a1.a1.a1.a0 = -49.0;
-  a1.a1.a2 = 50.0;
-  a1.a1.a3 = -51.0;
-  a1.a2.a0.a0 = 52;
-  a1.a2.a0.a1.a0.a0 = -53;
-  a1.a2.a0.a1.a0.a1 = 54;
-  a1.a2.a0.a1.a1.a0 = -55.0;
-  a1.a2.a0.a2 = 56;
-  a1.a2.a0.a3.a0.a0 = -57.0;
-  a1.a2.a0.a3.a1 = 58.0;
-  a1.a2.a0.a4 = 59;
-  a1.a2.a0.a5.a0.a0 = 60.0;
-  a1.a2.a0.a5.a1.a0 = -61.0;
-  a1.a2.a0.a6 = 62;
-  a1.a2.a1.a0.a0 = -63;
-  a1.a2.a1.a0.a1 = 64;
-  a1.a2.a1.a1.a0 = -65.0;
-  a1.a2.a2 = 66.0;
-  a1.a2.a3 = -67.0;
-  a1.a3 = 68.0;
-  a2.a0 = 69;
-  a2.a1.a0.a0 = 70;
-  a2.a1.a0.a1.a0.a0 = -71;
-  a2.a1.a0.a1.a0.a1 = 72;
-  a2.a1.a0.a1.a1.a0 = -73.0;
-  a2.a1.a0.a2 = 74;
-  a2.a1.a0.a3.a0.a0 = -75.0;
-  a2.a1.a0.a3.a1 = 76.0;
-  a2.a1.a0.a4 = 77;
-  a2.a1.a0.a5.a0.a0 = 78.0;
-  a2.a1.a0.a5.a1.a0 = -79.0;
-  a2.a1.a0.a6 = 80;
-  a2.a1.a1.a0.a0 = -81;
-  a2.a1.a1.a0.a1 = 82;
-  a2.a1.a1.a1.a0 = -83.0;
-  a2.a1.a2 = 84.0;
-  a2.a1.a3 = -85.0;
-  a2.a2.a0.a0 = 86;
-  a2.a2.a0.a1.a0.a0 = -87;
-  a2.a2.a0.a1.a0.a1 = 88;
-  a2.a2.a0.a1.a1.a0 = -89.0;
-  a2.a2.a0.a2 = 90;
-  a2.a2.a0.a3.a0.a0 = -91.0;
-  a2.a2.a0.a3.a1 = 92.0;
-  a2.a2.a0.a4 = 93;
-  a2.a2.a0.a5.a0.a0 = 94.0;
-  a2.a2.a0.a5.a1.a0 = -95.0;
-  a2.a2.a0.a6 = 96;
-  a2.a2.a1.a0.a0 = -97;
-  a2.a2.a1.a0.a1 = 98;
-  a2.a2.a1.a1.a0 = -99.0;
-  a2.a2.a2 = 100.0;
-  a2.a2.a3 = -101.0;
-  a2.a3 = 102.0;
-  a3.a0 = 103;
-  a3.a1.a0.a0 = 104;
-  a3.a1.a0.a1.a0.a0 = -105;
-  a3.a1.a0.a1.a0.a1 = 106;
-  a3.a1.a0.a1.a1.a0 = -107.0;
-  a3.a1.a0.a2 = 108;
-  a3.a1.a0.a3.a0.a0 = -109.0;
-  a3.a1.a0.a3.a1 = 110.0;
-  a3.a1.a0.a4 = 111;
-  a3.a1.a0.a5.a0.a0 = 112.0;
-  a3.a1.a0.a5.a1.a0 = -113.0;
-  a3.a1.a0.a6 = 114;
-  a3.a1.a1.a0.a0 = -115;
-  a3.a1.a1.a0.a1 = 116;
-  a3.a1.a1.a1.a0 = -117.0;
-  a3.a1.a2 = 118.0;
-  a3.a1.a3 = -119.0;
-  a3.a2.a0.a0 = 120;
-  a3.a2.a0.a1.a0.a0 = -121;
-  a3.a2.a0.a1.a0.a1 = 122;
-  a3.a2.a0.a1.a1.a0 = -123.0;
-  a3.a2.a0.a2 = 124;
-  a3.a2.a0.a3.a0.a0 = -125.0;
-  a3.a2.a0.a3.a1 = 126.0;
-  a3.a2.a0.a4 = 127;
-  a3.a2.a0.a5.a0.a0 = 128.0;
-  a3.a2.a0.a5.a1.a0 = -129.0;
-  a3.a2.a0.a6 = 130;
-  a3.a2.a1.a0.a0 = -131;
-  a3.a2.a1.a0.a1 = 132;
-  a3.a2.a1.a1.a0 = -133.0;
-  a3.a2.a2 = 134.0;
-  a3.a2.a3 = -135.0;
-  a3.a3 = 136.0;
-
-  final result = passStructNestedIrregularEvenBiggerx4(a0, a1, a2, a3);
-
-  print("result = $result");
-
-  Expect.approxEquals(1572.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-}
-
-final passStruct8BytesInlineArrayIntx4 = ffiTestFunctions.lookupFunction<
-    Int32 Function(Struct8BytesInlineArrayInt, Struct8BytesInlineArrayInt,
-        Struct8BytesInlineArrayInt, Struct8BytesInlineArrayInt),
-    int Function(
-        Struct8BytesInlineArrayInt,
-        Struct8BytesInlineArrayInt,
-        Struct8BytesInlineArrayInt,
-        Struct8BytesInlineArrayInt)>("PassStruct8BytesInlineArrayIntx4");
-
-/// Simple struct with inline array.
-void testPassStruct8BytesInlineArrayIntx4() {
-  final a0Pointer = calloc<Struct8BytesInlineArrayInt>();
-  final Struct8BytesInlineArrayInt a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct8BytesInlineArrayInt>();
-  final Struct8BytesInlineArrayInt a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct8BytesInlineArrayInt>();
-  final Struct8BytesInlineArrayInt a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct8BytesInlineArrayInt>();
-  final Struct8BytesInlineArrayInt a3 = a3Pointer.ref;
-
-  a0.a0[0] = 1;
-  a0.a0[1] = 2;
-  a0.a0[2] = 3;
-  a0.a0[3] = 4;
-  a0.a0[4] = 5;
-  a0.a0[5] = 6;
-  a0.a0[6] = 7;
-  a0.a0[7] = 8;
-  a1.a0[0] = 9;
-  a1.a0[1] = 10;
-  a1.a0[2] = 11;
-  a1.a0[3] = 12;
-  a1.a0[4] = 13;
-  a1.a0[5] = 14;
-  a1.a0[6] = 15;
-  a1.a0[7] = 16;
-  a2.a0[0] = 17;
-  a2.a0[1] = 18;
-  a2.a0[2] = 19;
-  a2.a0[3] = 20;
-  a2.a0[4] = 21;
-  a2.a0[5] = 22;
-  a2.a0[6] = 23;
-  a2.a0[7] = 24;
-  a3.a0[0] = 25;
-  a3.a0[1] = 26;
-  a3.a0[2] = 27;
-  a3.a0[3] = 28;
-  a3.a0[4] = 29;
-  a3.a0[5] = 30;
-  a3.a0[6] = 31;
-  a3.a0[7] = 32;
-
-  final result = passStruct8BytesInlineArrayIntx4(a0, a1, a2, a3);
-
-  print("result = $result");
-
-  Expect.equals(528, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-}
-
-final passStructInlineArrayIrregularx4 = ffiTestFunctions.lookupFunction<
-    Int32 Function(StructInlineArrayIrregular, StructInlineArrayIrregular,
-        StructInlineArrayIrregular, StructInlineArrayIrregular),
-    int Function(
-        StructInlineArrayIrregular,
-        StructInlineArrayIrregular,
-        StructInlineArrayIrregular,
-        StructInlineArrayIrregular)>("PassStructInlineArrayIrregularx4");
-
-/// Irregular struct with inline array.
-void testPassStructInlineArrayIrregularx4() {
-  final a0Pointer = calloc<StructInlineArrayIrregular>();
-  final StructInlineArrayIrregular a0 = a0Pointer.ref;
-  final a1Pointer = calloc<StructInlineArrayIrregular>();
-  final StructInlineArrayIrregular a1 = a1Pointer.ref;
-  final a2Pointer = calloc<StructInlineArrayIrregular>();
-  final StructInlineArrayIrregular a2 = a2Pointer.ref;
-  final a3Pointer = calloc<StructInlineArrayIrregular>();
-  final StructInlineArrayIrregular a3 = a3Pointer.ref;
-
-  a0.a0[0].a0 = -1;
-  a0.a0[0].a1 = 2;
-  a0.a0[1].a0 = -3;
-  a0.a0[1].a1 = 4;
-  a0.a1 = 5;
-  a1.a0[0].a0 = 6;
-  a1.a0[0].a1 = -7;
-  a1.a0[1].a0 = 8;
-  a1.a0[1].a1 = -9;
-  a1.a1 = 10;
-  a2.a0[0].a0 = -11;
-  a2.a0[0].a1 = 12;
-  a2.a0[1].a0 = -13;
-  a2.a0[1].a1 = 14;
-  a2.a1 = 15;
-  a3.a0[0].a0 = 16;
-  a3.a0[0].a1 = -17;
-  a3.a0[1].a0 = 18;
-  a3.a0[1].a1 = -19;
-  a3.a1 = 20;
-
-  final result = passStructInlineArrayIrregularx4(a0, a1, a2, a3);
-
-  print("result = $result");
-
-  Expect.equals(50, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-}
-
-final passStructInlineArray100Bytes = ffiTestFunctions.lookupFunction<
-    Int32 Function(StructInlineArray100Bytes),
-    int Function(StructInlineArray100Bytes)>("PassStructInlineArray100Bytes");
-
-/// Regular larger struct with inline array.
-void testPassStructInlineArray100Bytes() {
-  final a0Pointer = calloc<StructInlineArray100Bytes>();
-  final StructInlineArray100Bytes a0 = a0Pointer.ref;
-
-  a0.a0[0] = 1;
-  a0.a0[1] = 2;
-  a0.a0[2] = 3;
-  a0.a0[3] = 4;
-  a0.a0[4] = 5;
-  a0.a0[5] = 6;
-  a0.a0[6] = 7;
-  a0.a0[7] = 8;
-  a0.a0[8] = 9;
-  a0.a0[9] = 10;
-  a0.a0[10] = 11;
-  a0.a0[11] = 12;
-  a0.a0[12] = 13;
-  a0.a0[13] = 14;
-  a0.a0[14] = 15;
-  a0.a0[15] = 16;
-  a0.a0[16] = 17;
-  a0.a0[17] = 18;
-  a0.a0[18] = 19;
-  a0.a0[19] = 20;
-  a0.a0[20] = 21;
-  a0.a0[21] = 22;
-  a0.a0[22] = 23;
-  a0.a0[23] = 24;
-  a0.a0[24] = 25;
-  a0.a0[25] = 26;
-  a0.a0[26] = 27;
-  a0.a0[27] = 28;
-  a0.a0[28] = 29;
-  a0.a0[29] = 30;
-  a0.a0[30] = 31;
-  a0.a0[31] = 32;
-  a0.a0[32] = 33;
-  a0.a0[33] = 34;
-  a0.a0[34] = 35;
-  a0.a0[35] = 36;
-  a0.a0[36] = 37;
-  a0.a0[37] = 38;
-  a0.a0[38] = 39;
-  a0.a0[39] = 40;
-  a0.a0[40] = 41;
-  a0.a0[41] = 42;
-  a0.a0[42] = 43;
-  a0.a0[43] = 44;
-  a0.a0[44] = 45;
-  a0.a0[45] = 46;
-  a0.a0[46] = 47;
-  a0.a0[47] = 48;
-  a0.a0[48] = 49;
-  a0.a0[49] = 50;
-  a0.a0[50] = 51;
-  a0.a0[51] = 52;
-  a0.a0[52] = 53;
-  a0.a0[53] = 54;
-  a0.a0[54] = 55;
-  a0.a0[55] = 56;
-  a0.a0[56] = 57;
-  a0.a0[57] = 58;
-  a0.a0[58] = 59;
-  a0.a0[59] = 60;
-  a0.a0[60] = 61;
-  a0.a0[61] = 62;
-  a0.a0[62] = 63;
-  a0.a0[63] = 64;
-  a0.a0[64] = 65;
-  a0.a0[65] = 66;
-  a0.a0[66] = 67;
-  a0.a0[67] = 68;
-  a0.a0[68] = 69;
-  a0.a0[69] = 70;
-  a0.a0[70] = 71;
-  a0.a0[71] = 72;
-  a0.a0[72] = 73;
-  a0.a0[73] = 74;
-  a0.a0[74] = 75;
-  a0.a0[75] = 76;
-  a0.a0[76] = 77;
-  a0.a0[77] = 78;
-  a0.a0[78] = 79;
-  a0.a0[79] = 80;
-  a0.a0[80] = 81;
-  a0.a0[81] = 82;
-  a0.a0[82] = 83;
-  a0.a0[83] = 84;
-  a0.a0[84] = 85;
-  a0.a0[85] = 86;
-  a0.a0[86] = 87;
-  a0.a0[87] = 88;
-  a0.a0[88] = 89;
-  a0.a0[89] = 90;
-  a0.a0[90] = 91;
-  a0.a0[91] = 92;
-  a0.a0[92] = 93;
-  a0.a0[93] = 94;
-  a0.a0[94] = 95;
-  a0.a0[95] = 96;
-  a0.a0[96] = 97;
-  a0.a0[97] = 98;
-  a0.a0[98] = 99;
-  a0.a0[99] = 100;
-
-  final result = passStructInlineArray100Bytes(a0);
-
-  print("result = $result");
-
-  Expect.equals(5050, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passStructStruct16BytesHomogeneousFloat2x5 =
-    ffiTestFunctions.lookupFunction<
-            Float Function(
-                StructStruct16BytesHomogeneousFloat2,
-                StructStruct16BytesHomogeneousFloat2,
-                StructStruct16BytesHomogeneousFloat2,
-                StructStruct16BytesHomogeneousFloat2,
-                StructStruct16BytesHomogeneousFloat2),
-            double Function(
-                StructStruct16BytesHomogeneousFloat2,
-                StructStruct16BytesHomogeneousFloat2,
-                StructStruct16BytesHomogeneousFloat2,
-                StructStruct16BytesHomogeneousFloat2,
-                StructStruct16BytesHomogeneousFloat2)>(
-        "PassStructStruct16BytesHomogeneousFloat2x5");
-
-/// Arguments in FPU registers on arm hardfp and arm64.
-/// 5 struct arguments will exhaust available registers.
-void testPassStructStruct16BytesHomogeneousFloat2x5() {
-  final a0Pointer = calloc<StructStruct16BytesHomogeneousFloat2>();
-  final StructStruct16BytesHomogeneousFloat2 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<StructStruct16BytesHomogeneousFloat2>();
-  final StructStruct16BytesHomogeneousFloat2 a1 = a1Pointer.ref;
-  final a2Pointer = calloc<StructStruct16BytesHomogeneousFloat2>();
-  final StructStruct16BytesHomogeneousFloat2 a2 = a2Pointer.ref;
-  final a3Pointer = calloc<StructStruct16BytesHomogeneousFloat2>();
-  final StructStruct16BytesHomogeneousFloat2 a3 = a3Pointer.ref;
-  final a4Pointer = calloc<StructStruct16BytesHomogeneousFloat2>();
-  final StructStruct16BytesHomogeneousFloat2 a4 = a4Pointer.ref;
-
-  a0.a0.a0 = -1.0;
-  a0.a1[0].a0 = 2.0;
-  a0.a1[1].a0 = -3.0;
-  a0.a2 = 4.0;
-  a1.a0.a0 = -5.0;
-  a1.a1[0].a0 = 6.0;
-  a1.a1[1].a0 = -7.0;
-  a1.a2 = 8.0;
-  a2.a0.a0 = -9.0;
-  a2.a1[0].a0 = 10.0;
-  a2.a1[1].a0 = -11.0;
-  a2.a2 = 12.0;
-  a3.a0.a0 = -13.0;
-  a3.a1[0].a0 = 14.0;
-  a3.a1[1].a0 = -15.0;
-  a3.a2 = 16.0;
-  a4.a0.a0 = -17.0;
-  a4.a1[0].a0 = 18.0;
-  a4.a1[1].a0 = -19.0;
-  a4.a2 = 20.0;
-
-  final result = passStructStruct16BytesHomogeneousFloat2x5(a0, a1, a2, a3, a4);
-
-  print("result = $result");
-
-  Expect.approxEquals(10.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-}
-
-final passStructStruct32BytesHomogeneousDouble2x5 =
-    ffiTestFunctions.lookupFunction<
-            Double Function(
-                StructStruct32BytesHomogeneousDouble2,
-                StructStruct32BytesHomogeneousDouble2,
-                StructStruct32BytesHomogeneousDouble2,
-                StructStruct32BytesHomogeneousDouble2,
-                StructStruct32BytesHomogeneousDouble2),
-            double Function(
-                StructStruct32BytesHomogeneousDouble2,
-                StructStruct32BytesHomogeneousDouble2,
-                StructStruct32BytesHomogeneousDouble2,
-                StructStruct32BytesHomogeneousDouble2,
-                StructStruct32BytesHomogeneousDouble2)>(
-        "PassStructStruct32BytesHomogeneousDouble2x5");
-
-/// Arguments in FPU registers on arm64.
-/// 5 struct arguments will exhaust available registers.
-void testPassStructStruct32BytesHomogeneousDouble2x5() {
-  final a0Pointer = calloc<StructStruct32BytesHomogeneousDouble2>();
-  final StructStruct32BytesHomogeneousDouble2 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<StructStruct32BytesHomogeneousDouble2>();
-  final StructStruct32BytesHomogeneousDouble2 a1 = a1Pointer.ref;
-  final a2Pointer = calloc<StructStruct32BytesHomogeneousDouble2>();
-  final StructStruct32BytesHomogeneousDouble2 a2 = a2Pointer.ref;
-  final a3Pointer = calloc<StructStruct32BytesHomogeneousDouble2>();
-  final StructStruct32BytesHomogeneousDouble2 a3 = a3Pointer.ref;
-  final a4Pointer = calloc<StructStruct32BytesHomogeneousDouble2>();
-  final StructStruct32BytesHomogeneousDouble2 a4 = a4Pointer.ref;
-
-  a0.a0.a0 = -1.0;
-  a0.a1[0].a0 = 2.0;
-  a0.a1[1].a0 = -3.0;
-  a0.a2 = 4.0;
-  a1.a0.a0 = -5.0;
-  a1.a1[0].a0 = 6.0;
-  a1.a1[1].a0 = -7.0;
-  a1.a2 = 8.0;
-  a2.a0.a0 = -9.0;
-  a2.a1[0].a0 = 10.0;
-  a2.a1[1].a0 = -11.0;
-  a2.a2 = 12.0;
-  a3.a0.a0 = -13.0;
-  a3.a1[0].a0 = 14.0;
-  a3.a1[1].a0 = -15.0;
-  a3.a2 = 16.0;
-  a4.a0.a0 = -17.0;
-  a4.a1[0].a0 = 18.0;
-  a4.a1[1].a0 = -19.0;
-  a4.a2 = 20.0;
-
-  final result =
-      passStructStruct32BytesHomogeneousDouble2x5(a0, a1, a2, a3, a4);
-
-  print("result = $result");
-
-  Expect.approxEquals(10.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-}
-
-final passStructStruct16BytesMixed3x10 = ffiTestFunctions.lookupFunction<
-    Float Function(
-        StructStruct16BytesMixed3,
-        StructStruct16BytesMixed3,
-        StructStruct16BytesMixed3,
-        StructStruct16BytesMixed3,
-        StructStruct16BytesMixed3,
-        StructStruct16BytesMixed3,
-        StructStruct16BytesMixed3,
-        StructStruct16BytesMixed3,
-        StructStruct16BytesMixed3,
-        StructStruct16BytesMixed3),
-    double Function(
-        StructStruct16BytesMixed3,
-        StructStruct16BytesMixed3,
-        StructStruct16BytesMixed3,
-        StructStruct16BytesMixed3,
-        StructStruct16BytesMixed3,
-        StructStruct16BytesMixed3,
-        StructStruct16BytesMixed3,
-        StructStruct16BytesMixed3,
-        StructStruct16BytesMixed3,
-        StructStruct16BytesMixed3)>("PassStructStruct16BytesMixed3x10");
-
-/// On x64, arguments are split over FP and int registers.
-/// On x64, it will exhaust the integer registers with the 6th argument.
-/// The rest goes on the stack.
-/// On arm, arguments are 4 byte aligned.
-void testPassStructStruct16BytesMixed3x10() {
-  final a0Pointer = calloc<StructStruct16BytesMixed3>();
-  final StructStruct16BytesMixed3 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<StructStruct16BytesMixed3>();
-  final StructStruct16BytesMixed3 a1 = a1Pointer.ref;
-  final a2Pointer = calloc<StructStruct16BytesMixed3>();
-  final StructStruct16BytesMixed3 a2 = a2Pointer.ref;
-  final a3Pointer = calloc<StructStruct16BytesMixed3>();
-  final StructStruct16BytesMixed3 a3 = a3Pointer.ref;
-  final a4Pointer = calloc<StructStruct16BytesMixed3>();
-  final StructStruct16BytesMixed3 a4 = a4Pointer.ref;
-  final a5Pointer = calloc<StructStruct16BytesMixed3>();
-  final StructStruct16BytesMixed3 a5 = a5Pointer.ref;
-  final a6Pointer = calloc<StructStruct16BytesMixed3>();
-  final StructStruct16BytesMixed3 a6 = a6Pointer.ref;
-  final a7Pointer = calloc<StructStruct16BytesMixed3>();
-  final StructStruct16BytesMixed3 a7 = a7Pointer.ref;
-  final a8Pointer = calloc<StructStruct16BytesMixed3>();
-  final StructStruct16BytesMixed3 a8 = a8Pointer.ref;
-  final a9Pointer = calloc<StructStruct16BytesMixed3>();
-  final StructStruct16BytesMixed3 a9 = a9Pointer.ref;
-
-  a0.a0.a0 = -1.0;
-  a0.a1[0].a0 = 2.0;
-  a0.a1[0].a1 = -3;
-  a0.a1[0].a2 = 4;
-  a0.a2[0] = -5;
-  a0.a2[1] = 6;
-  a1.a0.a0 = -7.0;
-  a1.a1[0].a0 = 8.0;
-  a1.a1[0].a1 = -9;
-  a1.a1[0].a2 = 10;
-  a1.a2[0] = -11;
-  a1.a2[1] = 12;
-  a2.a0.a0 = -13.0;
-  a2.a1[0].a0 = 14.0;
-  a2.a1[0].a1 = -15;
-  a2.a1[0].a2 = 16;
-  a2.a2[0] = -17;
-  a2.a2[1] = 18;
-  a3.a0.a0 = -19.0;
-  a3.a1[0].a0 = 20.0;
-  a3.a1[0].a1 = -21;
-  a3.a1[0].a2 = 22;
-  a3.a2[0] = -23;
-  a3.a2[1] = 24;
-  a4.a0.a0 = -25.0;
-  a4.a1[0].a0 = 26.0;
-  a4.a1[0].a1 = -27;
-  a4.a1[0].a2 = 28;
-  a4.a2[0] = -29;
-  a4.a2[1] = 30;
-  a5.a0.a0 = -31.0;
-  a5.a1[0].a0 = 32.0;
-  a5.a1[0].a1 = -33;
-  a5.a1[0].a2 = 34;
-  a5.a2[0] = -35;
-  a5.a2[1] = 36;
-  a6.a0.a0 = -37.0;
-  a6.a1[0].a0 = 38.0;
-  a6.a1[0].a1 = -39;
-  a6.a1[0].a2 = 40;
-  a6.a2[0] = -41;
-  a6.a2[1] = 42;
-  a7.a0.a0 = -43.0;
-  a7.a1[0].a0 = 44.0;
-  a7.a1[0].a1 = -45;
-  a7.a1[0].a2 = 46;
-  a7.a2[0] = -47;
-  a7.a2[1] = 48;
-  a8.a0.a0 = -49.0;
-  a8.a1[0].a0 = 50.0;
-  a8.a1[0].a1 = -51;
-  a8.a1[0].a2 = 52;
-  a8.a2[0] = -53;
-  a8.a2[1] = 54;
-  a9.a0.a0 = -55.0;
-  a9.a1[0].a0 = 56.0;
-  a9.a1[0].a1 = -57;
-  a9.a1[0].a2 = 58;
-  a9.a2[0] = -59;
-  a9.a2[1] = 60;
-
-  final result =
-      passStructStruct16BytesMixed3x10(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.approxEquals(30.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passUint8Struct32BytesInlineArrayMultiDimensionalI =
-    ffiTestFunctions.lookupFunction<
-        Uint32 Function(
-            Uint8,
-            Struct32BytesInlineArrayMultiDimensionalInt,
-            Uint8,
-            Struct8BytesInlineArrayMultiDimensionalInt,
-            Uint8,
-            Struct8BytesInlineArrayMultiDimensionalInt,
-            Uint8),
-        int Function(
-            int,
-            Struct32BytesInlineArrayMultiDimensionalInt,
-            int,
-            Struct8BytesInlineArrayMultiDimensionalInt,
-            int,
-            Struct8BytesInlineArrayMultiDimensionalInt,
-            int)>("PassUint8Struct32BytesInlineArrayMultiDimensionalI");
-
-/// Test multi dimensional inline array struct as argument.
-void testPassUint8Struct32BytesInlineArrayMultiDimensionalI() {
-  int a0;
-  final a1Pointer = calloc<Struct32BytesInlineArrayMultiDimensionalInt>();
-  final Struct32BytesInlineArrayMultiDimensionalInt a1 = a1Pointer.ref;
-  int a2;
-  final a3Pointer = calloc<Struct8BytesInlineArrayMultiDimensionalInt>();
-  final Struct8BytesInlineArrayMultiDimensionalInt a3 = a3Pointer.ref;
-  int a4;
-  final a5Pointer = calloc<Struct8BytesInlineArrayMultiDimensionalInt>();
-  final Struct8BytesInlineArrayMultiDimensionalInt a5 = a5Pointer.ref;
-  int a6;
-
-  a0 = 1;
-  a1.a0[0][0][0][0][0] = 2;
-  a1.a0[0][0][0][0][1] = 3;
-  a1.a0[0][0][0][1][0] = 4;
-  a1.a0[0][0][0][1][1] = 5;
-  a1.a0[0][0][1][0][0] = 6;
-  a1.a0[0][0][1][0][1] = 7;
-  a1.a0[0][0][1][1][0] = 8;
-  a1.a0[0][0][1][1][1] = 9;
-  a1.a0[0][1][0][0][0] = 10;
-  a1.a0[0][1][0][0][1] = 11;
-  a1.a0[0][1][0][1][0] = 12;
-  a1.a0[0][1][0][1][1] = 13;
-  a1.a0[0][1][1][0][0] = 14;
-  a1.a0[0][1][1][0][1] = 15;
-  a1.a0[0][1][1][1][0] = 16;
-  a1.a0[0][1][1][1][1] = 17;
-  a1.a0[1][0][0][0][0] = 18;
-  a1.a0[1][0][0][0][1] = 19;
-  a1.a0[1][0][0][1][0] = 20;
-  a1.a0[1][0][0][1][1] = 21;
-  a1.a0[1][0][1][0][0] = 22;
-  a1.a0[1][0][1][0][1] = 23;
-  a1.a0[1][0][1][1][0] = 24;
-  a1.a0[1][0][1][1][1] = 25;
-  a1.a0[1][1][0][0][0] = 26;
-  a1.a0[1][1][0][0][1] = 27;
-  a1.a0[1][1][0][1][0] = 28;
-  a1.a0[1][1][0][1][1] = 29;
-  a1.a0[1][1][1][0][0] = 30;
-  a1.a0[1][1][1][0][1] = 31;
-  a1.a0[1][1][1][1][0] = 32;
-  a1.a0[1][1][1][1][1] = 33;
-  a2 = 34;
-  a3.a0[0][0][0] = 35;
-  a3.a0[0][0][1] = 36;
-  a3.a0[0][1][0] = 37;
-  a3.a0[0][1][1] = 38;
-  a3.a0[1][0][0] = 39;
-  a3.a0[1][0][1] = 40;
-  a3.a0[1][1][0] = 41;
-  a3.a0[1][1][1] = 42;
-  a4 = 43;
-  a5.a0[0][0][0] = 44;
-  a5.a0[0][0][1] = 45;
-  a5.a0[0][1][0] = 46;
-  a5.a0[0][1][1] = 47;
-  a5.a0[1][0][0] = 48;
-  a5.a0[1][0][1] = 49;
-  a5.a0[1][1][0] = 50;
-  a5.a0[1][1][1] = 51;
-  a6 = 52;
-
-  final result = passUint8Struct32BytesInlineArrayMultiDimensionalI(
-      a0, a1, a2, a3, a4, a5, a6);
-
-  print("result = $result");
-
-  Expect.equals(1378, result);
-
-  calloc.free(a1Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a5Pointer);
-}
-
-final passUint8Struct4BytesInlineArrayMultiDimensionalIn =
-    ffiTestFunctions.lookupFunction<
-        Uint32 Function(
-            Uint8, Struct4BytesInlineArrayMultiDimensionalInt, Uint8),
-        int Function(int, Struct4BytesInlineArrayMultiDimensionalInt,
-            int)>("PassUint8Struct4BytesInlineArrayMultiDimensionalIn");
-
-/// Test struct in multi dimensional inline array.
-void testPassUint8Struct4BytesInlineArrayMultiDimensionalIn() {
-  int a0;
-  final a1Pointer = calloc<Struct4BytesInlineArrayMultiDimensionalInt>();
-  final Struct4BytesInlineArrayMultiDimensionalInt a1 = a1Pointer.ref;
-  int a2;
-
-  a0 = 1;
-  a1.a0[0][0].a0 = 2;
-  a1.a0[0][1].a0 = -3;
-  a1.a0[1][0].a0 = 4;
-  a1.a0[1][1].a0 = -5;
-  a2 = 6;
-
-  final result = passUint8Struct4BytesInlineArrayMultiDimensionalIn(a0, a1, a2);
-
-  print("result = $result");
-
-  Expect.equals(5, result);
-
-  calloc.free(a1Pointer);
-}
-
-final passStruct3BytesPackedIntx10 = ffiTestFunctions.lookupFunction<
-    Int64 Function(
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt),
-    int Function(
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt,
-        Struct3BytesPackedInt)>("PassStruct3BytesPackedIntx10");
-
-/// Small struct with mis-aligned member.
-void testPassStruct3BytesPackedIntx10() {
-  final a0Pointer = calloc<Struct3BytesPackedInt>();
-  final Struct3BytesPackedInt a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct3BytesPackedInt>();
-  final Struct3BytesPackedInt a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct3BytesPackedInt>();
-  final Struct3BytesPackedInt a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct3BytesPackedInt>();
-  final Struct3BytesPackedInt a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct3BytesPackedInt>();
-  final Struct3BytesPackedInt a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct3BytesPackedInt>();
-  final Struct3BytesPackedInt a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct3BytesPackedInt>();
-  final Struct3BytesPackedInt a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct3BytesPackedInt>();
-  final Struct3BytesPackedInt a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct3BytesPackedInt>();
-  final Struct3BytesPackedInt a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct3BytesPackedInt>();
-  final Struct3BytesPackedInt a9 = a9Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a1.a0 = -3;
-  a1.a1 = 4;
-  a2.a0 = -5;
-  a2.a1 = 6;
-  a3.a0 = -7;
-  a3.a1 = 8;
-  a4.a0 = -9;
-  a4.a1 = 10;
-  a5.a0 = -11;
-  a5.a1 = 12;
-  a6.a0 = -13;
-  a6.a1 = 14;
-  a7.a0 = -15;
-  a7.a1 = 16;
-  a8.a0 = -17;
-  a8.a1 = 18;
-  a9.a0 = -19;
-  a9.a1 = 20;
-
-  final result =
-      passStruct3BytesPackedIntx10(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(10, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct8BytesPackedIntx10 = ffiTestFunctions.lookupFunction<
-    Int64 Function(
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt),
-    int Function(
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt,
-        Struct8BytesPackedInt)>("PassStruct8BytesPackedIntx10");
-
-/// Struct with mis-aligned member.
-void testPassStruct8BytesPackedIntx10() {
-  final a0Pointer = calloc<Struct8BytesPackedInt>();
-  final Struct8BytesPackedInt a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct8BytesPackedInt>();
-  final Struct8BytesPackedInt a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct8BytesPackedInt>();
-  final Struct8BytesPackedInt a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct8BytesPackedInt>();
-  final Struct8BytesPackedInt a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct8BytesPackedInt>();
-  final Struct8BytesPackedInt a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct8BytesPackedInt>();
-  final Struct8BytesPackedInt a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct8BytesPackedInt>();
-  final Struct8BytesPackedInt a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct8BytesPackedInt>();
-  final Struct8BytesPackedInt a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct8BytesPackedInt>();
-  final Struct8BytesPackedInt a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct8BytesPackedInt>();
-  final Struct8BytesPackedInt a9 = a9Pointer.ref;
-
-  a0.a0 = 1;
-  a0.a1 = 2;
-  a0.a2 = 3;
-  a0.a3 = 4;
-  a0.a4 = 5;
-  a1.a0 = 6;
-  a1.a1 = 7;
-  a1.a2 = 8;
-  a1.a3 = 9;
-  a1.a4 = 10;
-  a2.a0 = 11;
-  a2.a1 = 12;
-  a2.a2 = 13;
-  a2.a3 = 14;
-  a2.a4 = 15;
-  a3.a0 = 16;
-  a3.a1 = 17;
-  a3.a2 = 18;
-  a3.a3 = 19;
-  a3.a4 = 20;
-  a4.a0 = 21;
-  a4.a1 = 22;
-  a4.a2 = 23;
-  a4.a3 = 24;
-  a4.a4 = 25;
-  a5.a0 = 26;
-  a5.a1 = 27;
-  a5.a2 = 28;
-  a5.a3 = 29;
-  a5.a4 = 30;
-  a6.a0 = 31;
-  a6.a1 = 32;
-  a6.a2 = 33;
-  a6.a3 = 34;
-  a6.a4 = 35;
-  a7.a0 = 36;
-  a7.a1 = 37;
-  a7.a2 = 38;
-  a7.a3 = 39;
-  a7.a4 = 40;
-  a8.a0 = 41;
-  a8.a1 = 42;
-  a8.a2 = 43;
-  a8.a3 = 44;
-  a8.a4 = 45;
-  a9.a0 = 46;
-  a9.a1 = 47;
-  a9.a2 = 48;
-  a9.a3 = 49;
-  a9.a4 = 50;
-
-  final result =
-      passStruct8BytesPackedIntx10(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.equals(1275, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct9BytesPackedMixedx10DoubleInt32x2 =
-    ffiTestFunctions.lookupFunction<
-        Double Function(
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Double,
-            Int32,
-            Int32),
-        double Function(
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            Struct9BytesPackedMixed,
-            double,
-            int,
-            int)>("PassStruct9BytesPackedMixedx10DoubleInt32x2");
-
-/// Struct with mis-aligned member.
-/// Tests backfilling of CPU and FPU registers.
-void testPassStruct9BytesPackedMixedx10DoubleInt32x2() {
-  final a0Pointer = calloc<Struct9BytesPackedMixed>();
-  final Struct9BytesPackedMixed a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct9BytesPackedMixed>();
-  final Struct9BytesPackedMixed a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Struct9BytesPackedMixed>();
-  final Struct9BytesPackedMixed a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Struct9BytesPackedMixed>();
-  final Struct9BytesPackedMixed a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Struct9BytesPackedMixed>();
-  final Struct9BytesPackedMixed a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Struct9BytesPackedMixed>();
-  final Struct9BytesPackedMixed a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Struct9BytesPackedMixed>();
-  final Struct9BytesPackedMixed a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Struct9BytesPackedMixed>();
-  final Struct9BytesPackedMixed a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Struct9BytesPackedMixed>();
-  final Struct9BytesPackedMixed a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Struct9BytesPackedMixed>();
-  final Struct9BytesPackedMixed a9 = a9Pointer.ref;
-  double a10;
-  int a11;
-  int a12;
-
-  a0.a0 = 1;
-  a0.a1 = 2.0;
-  a1.a0 = 3;
-  a1.a1 = 4.0;
-  a2.a0 = 5;
-  a2.a1 = 6.0;
-  a3.a0 = 7;
-  a3.a1 = 8.0;
-  a4.a0 = 9;
-  a4.a1 = 10.0;
-  a5.a0 = 11;
-  a5.a1 = 12.0;
-  a6.a0 = 13;
-  a6.a1 = 14.0;
-  a7.a0 = 15;
-  a7.a1 = 16.0;
-  a8.a0 = 17;
-  a8.a1 = 18.0;
-  a9.a0 = 19;
-  a9.a1 = 20.0;
-  a10 = -21.0;
-  a11 = 22;
-  a12 = -23;
-
-  final result = passStruct9BytesPackedMixedx10DoubleInt32x2(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12);
-
-  print("result = $result");
-
-  Expect.approxEquals(188.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passStruct5BytesPackedMixed = ffiTestFunctions.lookupFunction<
-    Double Function(Struct5BytesPackedMixed),
-    double Function(Struct5BytesPackedMixed)>("PassStruct5BytesPackedMixed");
-
-/// This packed struct happens to have only aligned members.
-void testPassStruct5BytesPackedMixed() {
-  final a0Pointer = calloc<Struct5BytesPackedMixed>();
-  final Struct5BytesPackedMixed a0 = a0Pointer.ref;
-
-  a0.a0 = -1.0;
-  a0.a1 = 2;
-
-  final result = passStruct5BytesPackedMixed(a0);
-
-  print("result = $result");
-
-  Expect.approxEquals(1.0, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passStructNestedAlignmentStruct5BytesPackedMixed =
-    ffiTestFunctions.lookupFunction<
-            Double Function(StructNestedAlignmentStruct5BytesPackedMixed),
-            double Function(StructNestedAlignmentStruct5BytesPackedMixed)>(
-        "PassStructNestedAlignmentStruct5BytesPackedMixed");
-
-/// Check alignment of packed struct in non-packed struct.
-void testPassStructNestedAlignmentStruct5BytesPackedMixed() {
-  final a0Pointer = calloc<StructNestedAlignmentStruct5BytesPackedMixed>();
-  final StructNestedAlignmentStruct5BytesPackedMixed a0 = a0Pointer.ref;
-
-  a0.a0 = 1;
-  a0.a1.a0 = 2.0;
-  a0.a1.a1 = 3;
-
-  final result = passStructNestedAlignmentStruct5BytesPackedMixed(a0);
-
-  print("result = $result");
-
-  Expect.approxEquals(6.0, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passStruct6BytesInlineArrayInt = ffiTestFunctions.lookupFunction<
-    Double Function(Struct6BytesInlineArrayInt),
-    double Function(
-        Struct6BytesInlineArrayInt)>("PassStruct6BytesInlineArrayInt");
-
-/// Check alignment of packed struct array in non-packed struct.
-void testPassStruct6BytesInlineArrayInt() {
-  final a0Pointer = calloc<Struct6BytesInlineArrayInt>();
-  final Struct6BytesInlineArrayInt a0 = a0Pointer.ref;
-
-  a0.a0[0].a0 = -1;
-  a0.a0[0].a1 = 2;
-  a0.a0[1].a0 = -3;
-  a0.a0[1].a1 = 4;
-
-  final result = passStruct6BytesInlineArrayInt(a0);
-
-  print("result = $result");
-
-  Expect.approxEquals(2.0, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passStruct15BytesInlineArrayMixed = ffiTestFunctions.lookupFunction<
-    Double Function(Struct15BytesInlineArrayMixed),
-    double Function(
-        Struct15BytesInlineArrayMixed)>("PassStruct15BytesInlineArrayMixed");
-
-/// Check alignment of packed struct array in non-packed struct.
-void testPassStruct15BytesInlineArrayMixed() {
-  final a0Pointer = calloc<Struct15BytesInlineArrayMixed>();
-  final Struct15BytesInlineArrayMixed a0 = a0Pointer.ref;
-
-  a0.a0[0].a0 = -1.0;
-  a0.a0[0].a1 = 2;
-  a0.a0[1].a0 = -3.0;
-  a0.a0[1].a1 = 4;
-  a0.a0[2].a0 = -5.0;
-  a0.a0[2].a1 = 6;
-
-  final result = passStruct15BytesInlineArrayMixed(a0);
-
-  print("result = $result");
-
-  Expect.approxEquals(3.0, result);
-
-  calloc.free(a0Pointer);
-}
-
-final passUnion4BytesMixedx10 = ffiTestFunctions.lookupFunction<
-    Double Function(
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed),
-    double Function(
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed,
-        Union4BytesMixed)>("PassUnion4BytesMixedx10");
-
-/// Check placement of mixed integer/float union.
-void testPassUnion4BytesMixedx10() {
-  final a0Pointer = calloc<Union4BytesMixed>();
-  final Union4BytesMixed a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Union4BytesMixed>();
-  final Union4BytesMixed a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Union4BytesMixed>();
-  final Union4BytesMixed a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Union4BytesMixed>();
-  final Union4BytesMixed a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Union4BytesMixed>();
-  final Union4BytesMixed a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Union4BytesMixed>();
-  final Union4BytesMixed a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Union4BytesMixed>();
-  final Union4BytesMixed a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Union4BytesMixed>();
-  final Union4BytesMixed a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Union4BytesMixed>();
-  final Union4BytesMixed a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Union4BytesMixed>();
-  final Union4BytesMixed a9 = a9Pointer.ref;
-
-  a0.a0 = 1;
-  a1.a0 = 2;
-  a2.a0 = 3;
-  a3.a0 = 4;
-  a4.a0 = 5;
-  a5.a0 = 6;
-  a6.a0 = 7;
-  a7.a0 = 8;
-  a8.a0 = 9;
-  a9.a0 = 10;
-
-  final result =
-      passUnion4BytesMixedx10(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.approxEquals(55.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passUnion8BytesNestedFloatx10 = ffiTestFunctions.lookupFunction<
-    Double Function(
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat),
-    double Function(
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat,
-        Union8BytesNestedFloat)>("PassUnion8BytesNestedFloatx10");
-
-/// Check placement of mixed floats union.
-void testPassUnion8BytesNestedFloatx10() {
-  final a0Pointer = calloc<Union8BytesNestedFloat>();
-  final Union8BytesNestedFloat a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Union8BytesNestedFloat>();
-  final Union8BytesNestedFloat a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Union8BytesNestedFloat>();
-  final Union8BytesNestedFloat a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Union8BytesNestedFloat>();
-  final Union8BytesNestedFloat a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Union8BytesNestedFloat>();
-  final Union8BytesNestedFloat a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Union8BytesNestedFloat>();
-  final Union8BytesNestedFloat a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Union8BytesNestedFloat>();
-  final Union8BytesNestedFloat a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Union8BytesNestedFloat>();
-  final Union8BytesNestedFloat a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Union8BytesNestedFloat>();
-  final Union8BytesNestedFloat a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Union8BytesNestedFloat>();
-  final Union8BytesNestedFloat a9 = a9Pointer.ref;
-
-  a0.a0 = -1.0;
-  a1.a0 = 2.0;
-  a2.a0 = -3.0;
-  a3.a0 = 4.0;
-  a4.a0 = -5.0;
-  a5.a0 = 6.0;
-  a6.a0 = -7.0;
-  a7.a0 = 8.0;
-  a8.a0 = -9.0;
-  a9.a0 = 10.0;
-
-  final result =
-      passUnion8BytesNestedFloatx10(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.approxEquals(5.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passUnion9BytesNestedIntx10 = ffiTestFunctions.lookupFunction<
-    Double Function(
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt),
-    double Function(
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt,
-        Union9BytesNestedInt)>("PassUnion9BytesNestedIntx10");
-
-/// Mixed-size union argument.
-void testPassUnion9BytesNestedIntx10() {
-  final a0Pointer = calloc<Union9BytesNestedInt>();
-  final Union9BytesNestedInt a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Union9BytesNestedInt>();
-  final Union9BytesNestedInt a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Union9BytesNestedInt>();
-  final Union9BytesNestedInt a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Union9BytesNestedInt>();
-  final Union9BytesNestedInt a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Union9BytesNestedInt>();
-  final Union9BytesNestedInt a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Union9BytesNestedInt>();
-  final Union9BytesNestedInt a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Union9BytesNestedInt>();
-  final Union9BytesNestedInt a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Union9BytesNestedInt>();
-  final Union9BytesNestedInt a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Union9BytesNestedInt>();
-  final Union9BytesNestedInt a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Union9BytesNestedInt>();
-  final Union9BytesNestedInt a9 = a9Pointer.ref;
-
-  a0.a0.a0 = -1;
-  a0.a0.a1 = 2;
-  a0.a0.a2 = -3;
-  a1.a0.a0 = 4;
-  a1.a0.a1 = -5;
-  a1.a0.a2 = 6;
-  a2.a0.a0 = -7;
-  a2.a0.a1 = 8;
-  a2.a0.a2 = -9;
-  a3.a0.a0 = 10;
-  a3.a0.a1 = -11;
-  a3.a0.a2 = 12;
-  a4.a0.a0 = -13;
-  a4.a0.a1 = 14;
-  a4.a0.a2 = -15;
-  a5.a0.a0 = 16;
-  a5.a0.a1 = -17;
-  a5.a0.a2 = 18;
-  a6.a0.a0 = -19;
-  a6.a0.a1 = 20;
-  a6.a0.a2 = -21;
-  a7.a0.a0 = 22;
-  a7.a0.a1 = -23;
-  a7.a0.a2 = 24;
-  a8.a0.a0 = -25;
-  a8.a0.a1 = 26;
-  a8.a0.a2 = -27;
-  a9.a0.a0 = 28;
-  a9.a0.a1 = -29;
-  a9.a0.a2 = 30;
-
-  final result =
-      passUnion9BytesNestedIntx10(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.approxEquals(15.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passUnion16BytesNestedInlineArrayFloatx10 =
-    ffiTestFunctions.lookupFunction<
-            Double Function(
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat),
-            double Function(
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat,
-                Union16BytesNestedInlineArrayFloat)>(
-        "PassUnion16BytesNestedInlineArrayFloatx10");
-
-/// Union with homogenous floats.
-void testPassUnion16BytesNestedInlineArrayFloatx10() {
-  final a0Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
-  final Union16BytesNestedInlineArrayFloat a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
-  final Union16BytesNestedInlineArrayFloat a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
-  final Union16BytesNestedInlineArrayFloat a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
-  final Union16BytesNestedInlineArrayFloat a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
-  final Union16BytesNestedInlineArrayFloat a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
-  final Union16BytesNestedInlineArrayFloat a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
-  final Union16BytesNestedInlineArrayFloat a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
-  final Union16BytesNestedInlineArrayFloat a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
-  final Union16BytesNestedInlineArrayFloat a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Union16BytesNestedInlineArrayFloat>();
-  final Union16BytesNestedInlineArrayFloat a9 = a9Pointer.ref;
-
-  a0.a0[0] = -1.0;
-  a0.a0[1] = 2.0;
-  a0.a0[2] = -3.0;
-  a0.a0[3] = 4.0;
-  a1.a0[0] = -5.0;
-  a1.a0[1] = 6.0;
-  a1.a0[2] = -7.0;
-  a1.a0[3] = 8.0;
-  a2.a0[0] = -9.0;
-  a2.a0[1] = 10.0;
-  a2.a0[2] = -11.0;
-  a2.a0[3] = 12.0;
-  a3.a0[0] = -13.0;
-  a3.a0[1] = 14.0;
-  a3.a0[2] = -15.0;
-  a3.a0[3] = 16.0;
-  a4.a0[0] = -17.0;
-  a4.a0[1] = 18.0;
-  a4.a0[2] = -19.0;
-  a4.a0[3] = 20.0;
-  a5.a0[0] = -21.0;
-  a5.a0[1] = 22.0;
-  a5.a0[2] = -23.0;
-  a5.a0[3] = 24.0;
-  a6.a0[0] = -25.0;
-  a6.a0[1] = 26.0;
-  a6.a0[2] = -27.0;
-  a6.a0[3] = 28.0;
-  a7.a0[0] = -29.0;
-  a7.a0[1] = 30.0;
-  a7.a0[2] = -31.0;
-  a7.a0[3] = 32.0;
-  a8.a0[0] = -33.0;
-  a8.a0[1] = 34.0;
-  a8.a0[2] = -35.0;
-  a8.a0[3] = 36.0;
-  a9.a0[0] = -37.0;
-  a9.a0[1] = 38.0;
-  a9.a0[2] = -39.0;
-  a9.a0[3] = 40.0;
-
-  final result = passUnion16BytesNestedInlineArrayFloatx10(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.approxEquals(20.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passUnion16BytesNestedFloatx10 = ffiTestFunctions.lookupFunction<
-    Double Function(
-        Union16BytesNestedFloat,
-        Union16BytesNestedFloat,
-        Union16BytesNestedFloat,
-        Union16BytesNestedFloat,
-        Union16BytesNestedFloat,
-        Union16BytesNestedFloat,
-        Union16BytesNestedFloat,
-        Union16BytesNestedFloat,
-        Union16BytesNestedFloat,
-        Union16BytesNestedFloat),
-    double Function(
-        Union16BytesNestedFloat,
-        Union16BytesNestedFloat,
-        Union16BytesNestedFloat,
-        Union16BytesNestedFloat,
-        Union16BytesNestedFloat,
-        Union16BytesNestedFloat,
-        Union16BytesNestedFloat,
-        Union16BytesNestedFloat,
-        Union16BytesNestedFloat,
-        Union16BytesNestedFloat)>("PassUnion16BytesNestedFloatx10");
-
-/// Union with homogenous floats.
-void testPassUnion16BytesNestedFloatx10() {
-  final a0Pointer = calloc<Union16BytesNestedFloat>();
-  final Union16BytesNestedFloat a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Union16BytesNestedFloat>();
-  final Union16BytesNestedFloat a1 = a1Pointer.ref;
-  final a2Pointer = calloc<Union16BytesNestedFloat>();
-  final Union16BytesNestedFloat a2 = a2Pointer.ref;
-  final a3Pointer = calloc<Union16BytesNestedFloat>();
-  final Union16BytesNestedFloat a3 = a3Pointer.ref;
-  final a4Pointer = calloc<Union16BytesNestedFloat>();
-  final Union16BytesNestedFloat a4 = a4Pointer.ref;
-  final a5Pointer = calloc<Union16BytesNestedFloat>();
-  final Union16BytesNestedFloat a5 = a5Pointer.ref;
-  final a6Pointer = calloc<Union16BytesNestedFloat>();
-  final Union16BytesNestedFloat a6 = a6Pointer.ref;
-  final a7Pointer = calloc<Union16BytesNestedFloat>();
-  final Union16BytesNestedFloat a7 = a7Pointer.ref;
-  final a8Pointer = calloc<Union16BytesNestedFloat>();
-  final Union16BytesNestedFloat a8 = a8Pointer.ref;
-  final a9Pointer = calloc<Union16BytesNestedFloat>();
-  final Union16BytesNestedFloat a9 = a9Pointer.ref;
-
-  a0.a0.a0 = -1.0;
-  a0.a0.a1 = 2.0;
-  a1.a0.a0 = -3.0;
-  a1.a0.a1 = 4.0;
-  a2.a0.a0 = -5.0;
-  a2.a0.a1 = 6.0;
-  a3.a0.a0 = -7.0;
-  a3.a0.a1 = 8.0;
-  a4.a0.a0 = -9.0;
-  a4.a0.a1 = 10.0;
-  a5.a0.a0 = -11.0;
-  a5.a0.a1 = 12.0;
-  a6.a0.a0 = -13.0;
-  a6.a0.a1 = 14.0;
-  a7.a0.a0 = -15.0;
-  a7.a0.a1 = 16.0;
-  a8.a0.a0 = -17.0;
-  a8.a0.a1 = 18.0;
-  a9.a0.a0 = -19.0;
-  a9.a0.a1 = 20.0;
-
-  final result =
-      passUnion16BytesNestedFloatx10(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
-
-  print("result = $result");
-
-  Expect.approxEquals(10.0, result);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-  calloc.free(a3Pointer);
-  calloc.free(a4Pointer);
-  calloc.free(a5Pointer);
-  calloc.free(a6Pointer);
-  calloc.free(a7Pointer);
-  calloc.free(a8Pointer);
-  calloc.free(a9Pointer);
-}
-
-final passUint8Boolx9Struct10BytesHomogeneousBoolBool =
-    ffiTestFunctions.lookupFunction<
-        Int32 Function(Uint8, Bool, Bool, Bool, Bool, Bool, Bool, Bool, Bool,
-            Bool, Struct10BytesHomogeneousBool, Bool),
-        int Function(
-            int,
-            bool,
-            bool,
-            bool,
-            bool,
-            bool,
-            bool,
-            bool,
-            bool,
-            bool,
-            Struct10BytesHomogeneousBool,
-            bool)>("PassUint8Boolx9Struct10BytesHomogeneousBoolBool");
-
-/// Passing bools and a struct with bools.
-/// Exhausts the registers to test bools and the bool struct alignment on the
-/// stack.
-void testPassUint8Boolx9Struct10BytesHomogeneousBoolBool() {
-  int a0;
-  bool a1;
-  bool a2;
-  bool a3;
-  bool a4;
-  bool a5;
-  bool a6;
-  bool a7;
-  bool a8;
-  bool a9;
-  final a10Pointer = calloc<Struct10BytesHomogeneousBool>();
-  final Struct10BytesHomogeneousBool a10 = a10Pointer.ref;
-  bool a11;
-
-  a0 = 1;
-  a1 = false;
-  a2 = true;
-  a3 = false;
-  a4 = true;
-  a5 = false;
-  a6 = true;
-  a7 = false;
-  a8 = true;
-  a9 = false;
-  a10.a0 = true;
-  a10.a1 = false;
-  a10.a2 = true;
-  a10.a3 = false;
-  a10.a4 = true;
-  a10.a5 = false;
-  a10.a6 = true;
-  a10.a7 = false;
-  a10.a8 = true;
-  a10.a9 = false;
-  a11 = true;
-
-  final result = passUint8Boolx9Struct10BytesHomogeneousBoolBool(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11);
-
-  print("result = $result");
-
-  Expect.equals(11, result);
-
-  calloc.free(a10Pointer);
-}
-
-final passUint8Boolx9Struct10BytesInlineArrayBoolBool =
-    ffiTestFunctions.lookupFunction<
-        Int32 Function(Uint8, Bool, Bool, Bool, Bool, Bool, Bool, Bool, Bool,
-            Bool, Struct10BytesInlineArrayBool, Bool),
-        int Function(
-            int,
-            bool,
-            bool,
-            bool,
-            bool,
-            bool,
-            bool,
-            bool,
-            bool,
-            bool,
-            Struct10BytesInlineArrayBool,
-            bool)>("PassUint8Boolx9Struct10BytesInlineArrayBoolBool");
-
-/// Passing bools and a struct with bools.
-/// Exhausts the registers to test bools and the bool struct alignment on the
-/// stack.
-void testPassUint8Boolx9Struct10BytesInlineArrayBoolBool() {
-  int a0;
-  bool a1;
-  bool a2;
-  bool a3;
-  bool a4;
-  bool a5;
-  bool a6;
-  bool a7;
-  bool a8;
-  bool a9;
-  final a10Pointer = calloc<Struct10BytesInlineArrayBool>();
-  final Struct10BytesInlineArrayBool a10 = a10Pointer.ref;
-  bool a11;
-
-  a0 = 1;
-  a1 = false;
-  a2 = true;
-  a3 = false;
-  a4 = true;
-  a5 = false;
-  a6 = true;
-  a7 = false;
-  a8 = true;
-  a9 = false;
-  a10.a0[0] = true;
-  a10.a0[1] = false;
-  a10.a0[2] = true;
-  a10.a0[3] = false;
-  a10.a0[4] = true;
-  a10.a0[5] = false;
-  a10.a0[6] = true;
-  a10.a0[7] = false;
-  a10.a0[8] = true;
-  a10.a0[9] = false;
-  a11 = true;
-
-  final result = passUint8Boolx9Struct10BytesInlineArrayBoolBool(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11);
-
-  print("result = $result");
-
-  Expect.equals(11, result);
-
-  calloc.free(a10Pointer);
-}
-
-final passUint8Struct1ByteBool = ffiTestFunctions.lookupFunction<
-    Bool Function(Uint8, Struct1ByteBool),
-    bool Function(int, Struct1ByteBool)>("PassUint8Struct1ByteBool");
-
-/// Returning a bool.
-void testPassUint8Struct1ByteBool() {
-  int a0;
-  final a1Pointer = calloc<Struct1ByteBool>();
-  final Struct1ByteBool a1 = a1Pointer.ref;
-
-  a0 = 1;
-  a1.a0 = false;
-
-  final result = passUint8Struct1ByteBool(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(1 % 2 != 0, result);
-
-  calloc.free(a1Pointer);
-}
-
-final passWCharStructInlineArrayIntUintPtrx2LongUnsigned =
-    ffiTestFunctions.lookupFunction<
-        WChar Function(
-            WChar, StructInlineArrayInt, UintPtr, UintPtr, Long, UnsignedLong),
-        int Function(int, StructInlineArrayInt, int, int, int,
-            int)>("PassWCharStructInlineArrayIntUintPtrx2LongUnsigned");
-
-/// Returning a wchar.
-void testPassWCharStructInlineArrayIntUintPtrx2LongUnsigned() {
-  int a0;
-  final a1Pointer = calloc<StructInlineArrayInt>();
-  final StructInlineArrayInt a1 = a1Pointer.ref;
-  int a2;
-  int a3;
-  int a4;
-  int a5;
-
-  a0 = 1;
-  a1.a0[0] = 2;
-  a1.a0[1] = 3;
-  a1.a0[2] = 4;
-  a1.a0[3] = 5;
-  a1.a0[4] = 6;
-  a1.a0[5] = 7;
-  a1.a0[6] = 8;
-  a1.a0[7] = 9;
-  a1.a0[8] = 10;
-  a1.a0[9] = 11;
-  a2 = 12;
-  a3 = 13;
-  a4 = 14;
-  a5 = 15;
-
-  final result = passWCharStructInlineArrayIntUintPtrx2LongUnsigned(
-      a0, a1, a2, a3, a4, a5);
-
-  print("result = $result");
-
-  Expect.equals(120, result);
-
-  calloc.free(a1Pointer);
-}
-
-final passInt64x7Struct12BytesHomogeneousInt32 =
-    ffiTestFunctions.lookupFunction<
-            Int64 Function(Int64, Int64, Int64, Int64, Int64, Int64, Int64,
-                Struct12BytesHomogeneousInt32),
-            int Function(int, int, int, int, int, int, int,
-                Struct12BytesHomogeneousInt32)>(
-        "PassInt64x7Struct12BytesHomogeneousInt32");
-
-/// Struct stradles last argument register
-void testPassInt64x7Struct12BytesHomogeneousInt32() {
-  int a0;
-  int a1;
-  int a2;
-  int a3;
-  int a4;
-  int a5;
-  int a6;
-  final a7Pointer = calloc<Struct12BytesHomogeneousInt32>();
-  final Struct12BytesHomogeneousInt32 a7 = a7Pointer.ref;
-
-  a0 = -1;
-  a1 = 2;
-  a2 = -3;
-  a3 = 4;
-  a4 = -5;
-  a5 = 6;
-  a6 = -7;
-  a7.a0 = 8;
-  a7.a1 = -9;
-  a7.a2 = 10;
-
-  final result =
-      passInt64x7Struct12BytesHomogeneousInt32(a0, a1, a2, a3, a4, a5, a6, a7);
-
-  print("result = $result");
-
-  Expect.equals(5, result);
-
-  calloc.free(a7Pointer);
-}
diff --git a/tests/ffi_2/function_structs_by_value_generated_compounds.dart b/tests/ffi_2/function_structs_by_value_generated_compounds.dart
deleted file mode 100644
index 19e9aeb7417..00000000000
--- a/tests/ffi_2/function_structs_by_value_generated_compounds.dart
+++ /dev/null
@@ -1,1281 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// This file has been automatically generated. Please do not edit it manually.
-// Generated by tests/ffi/generator/structs_by_value_tests_generator.dart.
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-class Struct1ByteBool extends Struct {
-  @Bool()
-  bool a0;
-
-  String toString() => "(${a0})";
-}
-
-class Struct1ByteInt extends Struct {
-  @Int8()
-  int a0;
-
-  String toString() => "(${a0})";
-}
-
-class Struct3BytesHomogeneousUint8 extends Struct {
-  @Uint8()
-  int a0;
-
-  @Uint8()
-  int a1;
-
-  @Uint8()
-  int a2;
-
-  String toString() => "(${a0}, ${a1}, ${a2})";
-}
-
-class Struct3BytesInt2ByteAligned extends Struct {
-  @Int16()
-  int a0;
-
-  @Int8()
-  int a1;
-
-  String toString() => "(${a0}, ${a1})";
-}
-
-class Struct4BytesHomogeneousInt16 extends Struct {
-  @Int16()
-  int a0;
-
-  @Int16()
-  int a1;
-
-  String toString() => "(${a0}, ${a1})";
-}
-
-class Struct4BytesFloat extends Struct {
-  @Float()
-  double a0;
-
-  String toString() => "(${a0})";
-}
-
-class Struct7BytesHomogeneousUint8 extends Struct {
-  @Uint8()
-  int a0;
-
-  @Uint8()
-  int a1;
-
-  @Uint8()
-  int a2;
-
-  @Uint8()
-  int a3;
-
-  @Uint8()
-  int a4;
-
-  @Uint8()
-  int a5;
-
-  @Uint8()
-  int a6;
-
-  String toString() => "(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6})";
-}
-
-class Struct7BytesInt4ByteAligned extends Struct {
-  @Int32()
-  int a0;
-
-  @Int16()
-  int a1;
-
-  @Int8()
-  int a2;
-
-  String toString() => "(${a0}, ${a1}, ${a2})";
-}
-
-class Struct8BytesInt extends Struct {
-  @Int16()
-  int a0;
-
-  @Int16()
-  int a1;
-
-  @Int32()
-  int a2;
-
-  String toString() => "(${a0}, ${a1}, ${a2})";
-}
-
-class Struct8BytesHomogeneousFloat extends Struct {
-  @Float()
-  double a0;
-
-  @Float()
-  double a1;
-
-  String toString() => "(${a0}, ${a1})";
-}
-
-class Struct8BytesFloat extends Struct {
-  @Double()
-  double a0;
-
-  String toString() => "(${a0})";
-}
-
-class Struct8BytesMixed extends Struct {
-  @Float()
-  double a0;
-
-  @Int16()
-  int a1;
-
-  @Int16()
-  int a2;
-
-  String toString() => "(${a0}, ${a1}, ${a2})";
-}
-
-class Struct9BytesHomogeneousUint8 extends Struct {
-  @Uint8()
-  int a0;
-
-  @Uint8()
-  int a1;
-
-  @Uint8()
-  int a2;
-
-  @Uint8()
-  int a3;
-
-  @Uint8()
-  int a4;
-
-  @Uint8()
-  int a5;
-
-  @Uint8()
-  int a6;
-
-  @Uint8()
-  int a7;
-
-  @Uint8()
-  int a8;
-
-  String toString() =>
-      "(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8})";
-}
-
-class Struct9BytesInt4Or8ByteAligned extends Struct {
-  @Int64()
-  int a0;
-
-  @Int8()
-  int a1;
-
-  String toString() => "(${a0}, ${a1})";
-}
-
-class Struct10BytesHomogeneousBool extends Struct {
-  @Bool()
-  bool a0;
-
-  @Bool()
-  bool a1;
-
-  @Bool()
-  bool a2;
-
-  @Bool()
-  bool a3;
-
-  @Bool()
-  bool a4;
-
-  @Bool()
-  bool a5;
-
-  @Bool()
-  bool a6;
-
-  @Bool()
-  bool a7;
-
-  @Bool()
-  bool a8;
-
-  @Bool()
-  bool a9;
-
-  String toString() =>
-      "(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9})";
-}
-
-class Struct12BytesHomogeneousFloat extends Struct {
-  @Float()
-  double a0;
-
-  @Float()
-  double a1;
-
-  @Float()
-  double a2;
-
-  String toString() => "(${a0}, ${a1}, ${a2})";
-}
-
-class Struct12BytesHomogeneousInt32 extends Struct {
-  @Int32()
-  int a0;
-
-  @Int32()
-  int a1;
-
-  @Int32()
-  int a2;
-
-  String toString() => "(${a0}, ${a1}, ${a2})";
-}
-
-class Struct16BytesHomogeneousFloat extends Struct {
-  @Float()
-  double a0;
-
-  @Float()
-  double a1;
-
-  @Float()
-  double a2;
-
-  @Float()
-  double a3;
-
-  String toString() => "(${a0}, ${a1}, ${a2}, ${a3})";
-}
-
-class Struct16BytesMixed extends Struct {
-  @Double()
-  double a0;
-
-  @Int64()
-  int a1;
-
-  String toString() => "(${a0}, ${a1})";
-}
-
-class Struct16BytesMixed2 extends Struct {
-  @Float()
-  double a0;
-
-  @Float()
-  double a1;
-
-  @Float()
-  double a2;
-
-  @Int32()
-  int a3;
-
-  String toString() => "(${a0}, ${a1}, ${a2}, ${a3})";
-}
-
-class Struct17BytesInt extends Struct {
-  @Int64()
-  int a0;
-
-  @Int64()
-  int a1;
-
-  @Int8()
-  int a2;
-
-  String toString() => "(${a0}, ${a1}, ${a2})";
-}
-
-class Struct19BytesHomogeneousUint8 extends Struct {
-  @Uint8()
-  int a0;
-
-  @Uint8()
-  int a1;
-
-  @Uint8()
-  int a2;
-
-  @Uint8()
-  int a3;
-
-  @Uint8()
-  int a4;
-
-  @Uint8()
-  int a5;
-
-  @Uint8()
-  int a6;
-
-  @Uint8()
-  int a7;
-
-  @Uint8()
-  int a8;
-
-  @Uint8()
-  int a9;
-
-  @Uint8()
-  int a10;
-
-  @Uint8()
-  int a11;
-
-  @Uint8()
-  int a12;
-
-  @Uint8()
-  int a13;
-
-  @Uint8()
-  int a14;
-
-  @Uint8()
-  int a15;
-
-  @Uint8()
-  int a16;
-
-  @Uint8()
-  int a17;
-
-  @Uint8()
-  int a18;
-
-  String toString() =>
-      "(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9}, ${a10}, ${a11}, ${a12}, ${a13}, ${a14}, ${a15}, ${a16}, ${a17}, ${a18})";
-}
-
-class Struct20BytesHomogeneousInt32 extends Struct {
-  @Int32()
-  int a0;
-
-  @Int32()
-  int a1;
-
-  @Int32()
-  int a2;
-
-  @Int32()
-  int a3;
-
-  @Int32()
-  int a4;
-
-  String toString() => "(${a0}, ${a1}, ${a2}, ${a3}, ${a4})";
-}
-
-class Struct20BytesHomogeneousFloat extends Struct {
-  @Float()
-  double a0;
-
-  @Float()
-  double a1;
-
-  @Float()
-  double a2;
-
-  @Float()
-  double a3;
-
-  @Float()
-  double a4;
-
-  String toString() => "(${a0}, ${a1}, ${a2}, ${a3}, ${a4})";
-}
-
-class Struct32BytesHomogeneousDouble extends Struct {
-  @Double()
-  double a0;
-
-  @Double()
-  double a1;
-
-  @Double()
-  double a2;
-
-  @Double()
-  double a3;
-
-  String toString() => "(${a0}, ${a1}, ${a2}, ${a3})";
-}
-
-class Struct40BytesHomogeneousDouble extends Struct {
-  @Double()
-  double a0;
-
-  @Double()
-  double a1;
-
-  @Double()
-  double a2;
-
-  @Double()
-  double a3;
-
-  @Double()
-  double a4;
-
-  String toString() => "(${a0}, ${a1}, ${a2}, ${a3}, ${a4})";
-}
-
-class Struct1024BytesHomogeneousUint64 extends Struct {
-  @Uint64()
-  int a0;
-
-  @Uint64()
-  int a1;
-
-  @Uint64()
-  int a2;
-
-  @Uint64()
-  int a3;
-
-  @Uint64()
-  int a4;
-
-  @Uint64()
-  int a5;
-
-  @Uint64()
-  int a6;
-
-  @Uint64()
-  int a7;
-
-  @Uint64()
-  int a8;
-
-  @Uint64()
-  int a9;
-
-  @Uint64()
-  int a10;
-
-  @Uint64()
-  int a11;
-
-  @Uint64()
-  int a12;
-
-  @Uint64()
-  int a13;
-
-  @Uint64()
-  int a14;
-
-  @Uint64()
-  int a15;
-
-  @Uint64()
-  int a16;
-
-  @Uint64()
-  int a17;
-
-  @Uint64()
-  int a18;
-
-  @Uint64()
-  int a19;
-
-  @Uint64()
-  int a20;
-
-  @Uint64()
-  int a21;
-
-  @Uint64()
-  int a22;
-
-  @Uint64()
-  int a23;
-
-  @Uint64()
-  int a24;
-
-  @Uint64()
-  int a25;
-
-  @Uint64()
-  int a26;
-
-  @Uint64()
-  int a27;
-
-  @Uint64()
-  int a28;
-
-  @Uint64()
-  int a29;
-
-  @Uint64()
-  int a30;
-
-  @Uint64()
-  int a31;
-
-  @Uint64()
-  int a32;
-
-  @Uint64()
-  int a33;
-
-  @Uint64()
-  int a34;
-
-  @Uint64()
-  int a35;
-
-  @Uint64()
-  int a36;
-
-  @Uint64()
-  int a37;
-
-  @Uint64()
-  int a38;
-
-  @Uint64()
-  int a39;
-
-  @Uint64()
-  int a40;
-
-  @Uint64()
-  int a41;
-
-  @Uint64()
-  int a42;
-
-  @Uint64()
-  int a43;
-
-  @Uint64()
-  int a44;
-
-  @Uint64()
-  int a45;
-
-  @Uint64()
-  int a46;
-
-  @Uint64()
-  int a47;
-
-  @Uint64()
-  int a48;
-
-  @Uint64()
-  int a49;
-
-  @Uint64()
-  int a50;
-
-  @Uint64()
-  int a51;
-
-  @Uint64()
-  int a52;
-
-  @Uint64()
-  int a53;
-
-  @Uint64()
-  int a54;
-
-  @Uint64()
-  int a55;
-
-  @Uint64()
-  int a56;
-
-  @Uint64()
-  int a57;
-
-  @Uint64()
-  int a58;
-
-  @Uint64()
-  int a59;
-
-  @Uint64()
-  int a60;
-
-  @Uint64()
-  int a61;
-
-  @Uint64()
-  int a62;
-
-  @Uint64()
-  int a63;
-
-  @Uint64()
-  int a64;
-
-  @Uint64()
-  int a65;
-
-  @Uint64()
-  int a66;
-
-  @Uint64()
-  int a67;
-
-  @Uint64()
-  int a68;
-
-  @Uint64()
-  int a69;
-
-  @Uint64()
-  int a70;
-
-  @Uint64()
-  int a71;
-
-  @Uint64()
-  int a72;
-
-  @Uint64()
-  int a73;
-
-  @Uint64()
-  int a74;
-
-  @Uint64()
-  int a75;
-
-  @Uint64()
-  int a76;
-
-  @Uint64()
-  int a77;
-
-  @Uint64()
-  int a78;
-
-  @Uint64()
-  int a79;
-
-  @Uint64()
-  int a80;
-
-  @Uint64()
-  int a81;
-
-  @Uint64()
-  int a82;
-
-  @Uint64()
-  int a83;
-
-  @Uint64()
-  int a84;
-
-  @Uint64()
-  int a85;
-
-  @Uint64()
-  int a86;
-
-  @Uint64()
-  int a87;
-
-  @Uint64()
-  int a88;
-
-  @Uint64()
-  int a89;
-
-  @Uint64()
-  int a90;
-
-  @Uint64()
-  int a91;
-
-  @Uint64()
-  int a92;
-
-  @Uint64()
-  int a93;
-
-  @Uint64()
-  int a94;
-
-  @Uint64()
-  int a95;
-
-  @Uint64()
-  int a96;
-
-  @Uint64()
-  int a97;
-
-  @Uint64()
-  int a98;
-
-  @Uint64()
-  int a99;
-
-  @Uint64()
-  int a100;
-
-  @Uint64()
-  int a101;
-
-  @Uint64()
-  int a102;
-
-  @Uint64()
-  int a103;
-
-  @Uint64()
-  int a104;
-
-  @Uint64()
-  int a105;
-
-  @Uint64()
-  int a106;
-
-  @Uint64()
-  int a107;
-
-  @Uint64()
-  int a108;
-
-  @Uint64()
-  int a109;
-
-  @Uint64()
-  int a110;
-
-  @Uint64()
-  int a111;
-
-  @Uint64()
-  int a112;
-
-  @Uint64()
-  int a113;
-
-  @Uint64()
-  int a114;
-
-  @Uint64()
-  int a115;
-
-  @Uint64()
-  int a116;
-
-  @Uint64()
-  int a117;
-
-  @Uint64()
-  int a118;
-
-  @Uint64()
-  int a119;
-
-  @Uint64()
-  int a120;
-
-  @Uint64()
-  int a121;
-
-  @Uint64()
-  int a122;
-
-  @Uint64()
-  int a123;
-
-  @Uint64()
-  int a124;
-
-  @Uint64()
-  int a125;
-
-  @Uint64()
-  int a126;
-
-  @Uint64()
-  int a127;
-
-  String toString() =>
-      "(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6}, ${a7}, ${a8}, ${a9}, ${a10}, ${a11}, ${a12}, ${a13}, ${a14}, ${a15}, ${a16}, ${a17}, ${a18}, ${a19}, ${a20}, ${a21}, ${a22}, ${a23}, ${a24}, ${a25}, ${a26}, ${a27}, ${a28}, ${a29}, ${a30}, ${a31}, ${a32}, ${a33}, ${a34}, ${a35}, ${a36}, ${a37}, ${a38}, ${a39}, ${a40}, ${a41}, ${a42}, ${a43}, ${a44}, ${a45}, ${a46}, ${a47}, ${a48}, ${a49}, ${a50}, ${a51}, ${a52}, ${a53}, ${a54}, ${a55}, ${a56}, ${a57}, ${a58}, ${a59}, ${a60}, ${a61}, ${a62}, ${a63}, ${a64}, ${a65}, ${a66}, ${a67}, ${a68}, ${a69}, ${a70}, ${a71}, ${a72}, ${a73}, ${a74}, ${a75}, ${a76}, ${a77}, ${a78}, ${a79}, ${a80}, ${a81}, ${a82}, ${a83}, ${a84}, ${a85}, ${a86}, ${a87}, ${a88}, ${a89}, ${a90}, ${a91}, ${a92}, ${a93}, ${a94}, ${a95}, ${a96}, ${a97}, ${a98}, ${a99}, ${a100}, ${a101}, ${a102}, ${a103}, ${a104}, ${a105}, ${a106}, ${a107}, ${a108}, ${a109}, ${a110}, ${a111}, ${a112}, ${a113}, ${a114}, ${a115}, ${a116}, ${a117}, ${a118}, ${a119}, ${a120}, ${a121}, ${a122}, ${a123}, ${a124}, ${a125}, ${a126}, ${a127})";
-}
-
-class StructAlignmentInt16 extends Struct {
-  @Int8()
-  int a0;
-
-  @Int16()
-  int a1;
-
-  @Int8()
-  int a2;
-
-  String toString() => "(${a0}, ${a1}, ${a2})";
-}
-
-class StructAlignmentInt32 extends Struct {
-  @Int8()
-  int a0;
-
-  @Int32()
-  int a1;
-
-  @Int8()
-  int a2;
-
-  String toString() => "(${a0}, ${a1}, ${a2})";
-}
-
-class StructAlignmentInt64 extends Struct {
-  @Int8()
-  int a0;
-
-  @Int64()
-  int a1;
-
-  @Int8()
-  int a2;
-
-  String toString() => "(${a0}, ${a1}, ${a2})";
-}
-
-class Struct8BytesNestedInt extends Struct {
-  Struct4BytesHomogeneousInt16 a0;
-
-  Struct4BytesHomogeneousInt16 a1;
-
-  String toString() => "(${a0}, ${a1})";
-}
-
-class Struct8BytesNestedFloat extends Struct {
-  Struct4BytesFloat a0;
-
-  Struct4BytesFloat a1;
-
-  String toString() => "(${a0}, ${a1})";
-}
-
-class Struct8BytesNestedFloat2 extends Struct {
-  Struct4BytesFloat a0;
-
-  @Float()
-  double a1;
-
-  String toString() => "(${a0}, ${a1})";
-}
-
-class Struct8BytesNestedMixed extends Struct {
-  Struct4BytesHomogeneousInt16 a0;
-
-  Struct4BytesFloat a1;
-
-  String toString() => "(${a0}, ${a1})";
-}
-
-class Struct16BytesNestedInt extends Struct {
-  Struct8BytesNestedInt a0;
-
-  Struct8BytesNestedInt a1;
-
-  String toString() => "(${a0}, ${a1})";
-}
-
-class Struct32BytesNestedInt extends Struct {
-  Struct16BytesNestedInt a0;
-
-  Struct16BytesNestedInt a1;
-
-  String toString() => "(${a0}, ${a1})";
-}
-
-class StructNestedIntStructAlignmentInt16 extends Struct {
-  StructAlignmentInt16 a0;
-
-  StructAlignmentInt16 a1;
-
-  String toString() => "(${a0}, ${a1})";
-}
-
-class StructNestedIntStructAlignmentInt32 extends Struct {
-  StructAlignmentInt32 a0;
-
-  StructAlignmentInt32 a1;
-
-  String toString() => "(${a0}, ${a1})";
-}
-
-class StructNestedIntStructAlignmentInt64 extends Struct {
-  StructAlignmentInt64 a0;
-
-  StructAlignmentInt64 a1;
-
-  String toString() => "(${a0}, ${a1})";
-}
-
-class StructNestedIrregularBig extends Struct {
-  @Uint16()
-  int a0;
-
-  Struct8BytesNestedMixed a1;
-
-  @Uint16()
-  int a2;
-
-  Struct8BytesNestedFloat2 a3;
-
-  @Uint16()
-  int a4;
-
-  Struct8BytesNestedFloat a5;
-
-  @Uint16()
-  int a6;
-
-  String toString() => "(${a0}, ${a1}, ${a2}, ${a3}, ${a4}, ${a5}, ${a6})";
-}
-
-class StructNestedIrregularBigger extends Struct {
-  StructNestedIrregularBig a0;
-
-  Struct8BytesNestedMixed a1;
-
-  @Float()
-  double a2;
-
-  @Double()
-  double a3;
-
-  String toString() => "(${a0}, ${a1}, ${a2}, ${a3})";
-}
-
-class StructNestedIrregularEvenBigger extends Struct {
-  @Uint64()
-  int a0;
-
-  StructNestedIrregularBigger a1;
-
-  StructNestedIrregularBigger a2;
-
-  @Double()
-  double a3;
-
-  String toString() => "(${a0}, ${a1}, ${a2}, ${a3})";
-}
-
-class Struct8BytesInlineArrayInt extends Struct {
-  @Array(8)
-  Array<Uint8> a0;
-
-  String toString() => "(${[for (var i0 = 0; i0 < 8; i0 += 1) a0[i0]]})";
-}
-
-class Struct10BytesInlineArrayBool extends Struct {
-  @Array(10)
-  Array<Bool> a0;
-
-  String toString() => "(${[for (var i0 = 0; i0 < 10; i0 += 1) a0[i0]]})";
-}
-
-class StructInlineArrayIrregular extends Struct {
-  @Array(2)
-  Array<Struct3BytesInt2ByteAligned> a0;
-
-  @Uint8()
-  int a1;
-
-  String toString() => "(${[for (var i0 = 0; i0 < 2; i0 += 1) a0[i0]]}, ${a1})";
-}
-
-class StructInlineArray100Bytes extends Struct {
-  @Array(100)
-  Array<Uint8> a0;
-
-  String toString() => "(${[for (var i0 = 0; i0 < 100; i0 += 1) a0[i0]]})";
-}
-
-class StructInlineArrayBig extends Struct {
-  @Uint32()
-  int a0;
-
-  @Uint32()
-  int a1;
-
-  @Array(4000)
-  Array<Uint8> a2;
-
-  String toString() =>
-      "(${a0}, ${a1}, ${[for (var i0 = 0; i0 < 4000; i0 += 1) a2[i0]]})";
-}
-
-class StructStruct16BytesHomogeneousFloat2 extends Struct {
-  Struct4BytesFloat a0;
-
-  @Array(2)
-  Array<Struct4BytesFloat> a1;
-
-  @Float()
-  double a2;
-
-  String toString() =>
-      "(${a0}, ${[for (var i0 = 0; i0 < 2; i0 += 1) a1[i0]]}, ${a2})";
-}
-
-class StructStruct32BytesHomogeneousDouble2 extends Struct {
-  Struct8BytesFloat a0;
-
-  @Array(2)
-  Array<Struct8BytesFloat> a1;
-
-  @Double()
-  double a2;
-
-  String toString() =>
-      "(${a0}, ${[for (var i0 = 0; i0 < 2; i0 += 1) a1[i0]]}, ${a2})";
-}
-
-class StructStruct16BytesMixed3 extends Struct {
-  Struct4BytesFloat a0;
-
-  @Array(1)
-  Array<Struct8BytesMixed> a1;
-
-  @Array(2)
-  Array<Int16> a2;
-
-  String toString() => "(${a0}, ${[
-        for (var i0 = 0; i0 < 1; i0 += 1) a1[i0]
-      ]}, ${[for (var i0 = 0; i0 < 2; i0 += 1) a2[i0]]})";
-}
-
-class Struct8BytesInlineArrayMultiDimensionalInt extends Struct {
-  @Array(2, 2, 2)
-  Array<Array<Array<Uint8>>> a0;
-
-  String toString() => "(${[
-        for (var i0 = 0; i0 < 2; i0 += 1)
-          [
-            for (var i1 = 0; i1 < 2; i1 += 1)
-              [for (var i2 = 0; i2 < 2; i2 += 1) a0[i0][i1][i2]]
-          ]
-      ]})";
-}
-
-class Struct32BytesInlineArrayMultiDimensionalInt extends Struct {
-  @Array(2, 2, 2, 2, 2)
-  Array<Array<Array<Array<Array<Uint8>>>>> a0;
-
-  String toString() => "(${[
-        for (var i0 = 0; i0 < 2; i0 += 1)
-          [
-            for (var i1 = 0; i1 < 2; i1 += 1)
-              [
-                for (var i2 = 0; i2 < 2; i2 += 1)
-                  [
-                    for (var i3 = 0; i3 < 2; i3 += 1)
-                      [for (var i4 = 0; i4 < 2; i4 += 1) a0[i0][i1][i2][i3][i4]]
-                  ]
-              ]
-          ]
-      ]})";
-}
-
-class Struct64BytesInlineArrayMultiDimensionalInt extends Struct {
-  @Array.multi([2, 2, 2, 2, 2, 2])
-  Array<Array<Array<Array<Array<Array<Uint8>>>>>> a0;
-
-  String toString() => "(${[
-        for (var i0 = 0; i0 < 2; i0 += 1)
-          [
-            for (var i1 = 0; i1 < 2; i1 += 1)
-              [
-                for (var i2 = 0; i2 < 2; i2 += 1)
-                  [
-                    for (var i3 = 0; i3 < 2; i3 += 1)
-                      [
-                        for (var i4 = 0; i4 < 2; i4 += 1)
-                          [
-                            for (var i5 = 0; i5 < 2; i5 += 1)
-                              a0[i0][i1][i2][i3][i4][i5]
-                          ]
-                      ]
-                  ]
-              ]
-          ]
-      ]})";
-}
-
-class Struct4BytesInlineArrayMultiDimensionalInt extends Struct {
-  @Array(2, 2)
-  Array<Array<Struct1ByteInt>> a0;
-
-  String toString() => "(${[
-        for (var i0 = 0; i0 < 2; i0 += 1)
-          [for (var i1 = 0; i1 < 2; i1 += 1) a0[i0][i1]]
-      ]})";
-}
-
-@Packed(1)
-class Struct3BytesPackedInt extends Struct {
-  @Int8()
-  int a0;
-
-  @Int16()
-  int a1;
-
-  String toString() => "(${a0}, ${a1})";
-}
-
-@Packed(1)
-class Struct3BytesPackedIntMembersAligned extends Struct {
-  @Int8()
-  int a0;
-
-  @Int16()
-  int a1;
-
-  String toString() => "(${a0}, ${a1})";
-}
-
-@Packed(1)
-class Struct5BytesPackedMixed extends Struct {
-  @Float()
-  double a0;
-
-  @Uint8()
-  int a1;
-
-  String toString() => "(${a0}, ${a1})";
-}
-
-class StructNestedAlignmentStruct5BytesPackedMixed extends Struct {
-  @Uint8()
-  int a0;
-
-  Struct5BytesPackedMixed a1;
-
-  String toString() => "(${a0}, ${a1})";
-}
-
-class Struct6BytesInlineArrayInt extends Struct {
-  @Array(2)
-  Array<Struct3BytesPackedIntMembersAligned> a0;
-
-  String toString() => "(${[for (var i0 = 0; i0 < 2; i0 += 1) a0[i0]]})";
-}
-
-@Packed(1)
-class Struct8BytesPackedInt extends Struct {
-  @Uint8()
-  int a0;
-
-  @Uint32()
-  int a1;
-
-  @Uint8()
-  int a2;
-
-  @Uint8()
-  int a3;
-
-  @Uint8()
-  int a4;
-
-  String toString() => "(${a0}, ${a1}, ${a2}, ${a3}, ${a4})";
-}
-
-@Packed(1)
-class Struct9BytesPackedMixed extends Struct {
-  @Uint8()
-  int a0;
-
-  @Double()
-  double a1;
-
-  String toString() => "(${a0}, ${a1})";
-}
-
-class Struct15BytesInlineArrayMixed extends Struct {
-  @Array(3)
-  Array<Struct5BytesPackedMixed> a0;
-
-  String toString() => "(${[for (var i0 = 0; i0 < 3; i0 += 1) a0[i0]]})";
-}
-
-class Union4BytesMixed extends Union {
-  @Uint32()
-  int a0;
-
-  @Float()
-  double a1;
-
-  String toString() => "(${a0}, ${a1})";
-}
-
-class Union8BytesNestedFloat extends Union {
-  @Double()
-  double a0;
-
-  Struct8BytesHomogeneousFloat a1;
-
-  String toString() => "(${a0}, ${a1})";
-}
-
-class Union9BytesNestedInt extends Union {
-  Struct8BytesInt a0;
-
-  Struct9BytesHomogeneousUint8 a1;
-
-  String toString() => "(${a0}, ${a1})";
-}
-
-class Union16BytesNestedInlineArrayFloat extends Union {
-  @Array(4)
-  Array<Float> a0;
-
-  Struct16BytesHomogeneousFloat a1;
-
-  String toString() => "(${[for (var i0 = 0; i0 < 4; i0 += 1) a0[i0]]}, ${a1})";
-}
-
-class Union16BytesNestedFloat extends Union {
-  Struct8BytesHomogeneousFloat a0;
-
-  Struct12BytesHomogeneousFloat a1;
-
-  Struct16BytesHomogeneousFloat a2;
-
-  String toString() => "(${a0}, ${a1}, ${a2})";
-}
-
-class StructInlineArrayInt extends Struct {
-  @Array(10)
-  Array<WChar> a0;
-
-  String toString() => "(${[for (var i0 = 0; i0 < 10; i0 += 1) a0[i0]]})";
-}
diff --git a/tests/ffi_2/function_structs_by_value_generated_ret_arg_leaf_test.dart b/tests/ffi_2/function_structs_by_value_generated_ret_arg_leaf_test.dart
deleted file mode 100644
index 9f85c7507cd..00000000000
--- a/tests/ffi_2/function_structs_by_value_generated_ret_arg_leaf_test.dart
+++ /dev/null
@@ -1,855 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// This file has been automatically generated. Please do not edit it manually.
-// Generated by tests/ffi/generator/structs_by_value_tests_generator.dart.
-//
-// SharedObjects=ffi_test_functions
-// VMOptions=
-// VMOptions=--deterministic --optimization-counter-threshold=90
-// VMOptions=--use-slow-path
-// VMOptions=--use-slow-path --stacktrace-every=100
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
-
-import 'dylib_utils.dart';
-
-// Reuse the compound classes.
-import 'function_structs_by_value_generated_compounds.dart';
-
-final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-void main() {
-  for (int i = 0; i < 100; ++i) {
-    testReturnStructArgumentStruct1ByteIntLeaf();
-    testReturnStructArgumentInt32x8Struct1ByteIntLeaf();
-    testReturnStructArgumentStruct8BytesHomogeneousFloatLeaf();
-    testReturnStructArgumentStruct20BytesHomogeneousInt32Leaf();
-    testReturnStructArgumentInt32x8Struct20BytesHomogeneouLeaf();
-    testReturnStructArgumentStruct8BytesInlineArrayIntLeaf();
-    testReturnStructArgumentStructStruct16BytesHomogeneousLeaf();
-    testReturnStructArgumentStructStruct32BytesHomogeneousLeaf();
-    testReturnStructArgumentStructStruct16BytesMixed3Leaf();
-    testReturnStructAlignmentInt16Leaf();
-    testReturnStructAlignmentInt32Leaf();
-    testReturnStructAlignmentInt64Leaf();
-    testReturnStruct8BytesNestedIntLeaf();
-    testReturnStruct8BytesNestedFloatLeaf();
-    testReturnStruct8BytesNestedFloat2Leaf();
-    testReturnStruct8BytesNestedMixedLeaf();
-    testReturnStruct16BytesNestedIntLeaf();
-    testReturnStruct32BytesNestedIntLeaf();
-    testReturnStructNestedIntStructAlignmentInt16Leaf();
-    testReturnStructNestedIntStructAlignmentInt32Leaf();
-    testReturnStructNestedIntStructAlignmentInt64Leaf();
-    testReturnStructNestedIrregularEvenBiggerLeaf();
-  }
-}
-
-final returnStructArgumentStruct1ByteIntLeaf = ffiTestFunctions.lookupFunction<
-    Struct1ByteInt Function(Struct1ByteInt),
-    Struct1ByteInt Function(
-        Struct1ByteInt)>("ReturnStructArgumentStruct1ByteInt", isLeaf: true);
-
-/// Test that a struct passed in as argument can be returned.
-/// Especially for ffi callbacks.
-/// Struct is passed in int registers in most ABIs.
-void testReturnStructArgumentStruct1ByteIntLeaf() {
-  final a0Pointer = calloc<Struct1ByteInt>();
-  final Struct1ByteInt a0 = a0Pointer.ref;
-
-  a0.a0 = -1;
-
-  final result = returnStructArgumentStruct1ByteIntLeaf(a0);
-
-  print("result = $result");
-
-  Expect.equals(a0.a0, result.a0);
-
-  calloc.free(a0Pointer);
-}
-
-final returnStructArgumentInt32x8Struct1ByteIntLeaf =
-    ffiTestFunctions
-        .lookupFunction<
-                Struct1ByteInt Function(Int32, Int32, Int32, Int32, Int32, Int32,
-                    Int32, Int32, Struct1ByteInt),
-                Struct1ByteInt Function(
-                    int, int, int, int, int, int, int, int, Struct1ByteInt)>(
-            "ReturnStructArgumentInt32x8Struct1ByteInt",
-            isLeaf: true);
-
-/// Test that a struct passed in as argument can be returned.
-/// Especially for ffi callbacks.
-/// Struct is passed on stack on all ABIs.
-void testReturnStructArgumentInt32x8Struct1ByteIntLeaf() {
-  int a0;
-  int a1;
-  int a2;
-  int a3;
-  int a4;
-  int a5;
-  int a6;
-  int a7;
-  final a8Pointer = calloc<Struct1ByteInt>();
-  final Struct1ByteInt a8 = a8Pointer.ref;
-
-  a0 = -1;
-  a1 = 2;
-  a2 = -3;
-  a3 = 4;
-  a4 = -5;
-  a5 = 6;
-  a6 = -7;
-  a7 = 8;
-  a8.a0 = -9;
-
-  final result = returnStructArgumentInt32x8Struct1ByteIntLeaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8);
-
-  print("result = $result");
-
-  Expect.equals(a8.a0, result.a0);
-
-  calloc.free(a8Pointer);
-}
-
-final returnStructArgumentStruct8BytesHomogeneousFloatLeaf =
-    ffiTestFunctions.lookupFunction<
-            Struct8BytesHomogeneousFloat Function(Struct8BytesHomogeneousFloat),
-            Struct8BytesHomogeneousFloat Function(
-                Struct8BytesHomogeneousFloat)>(
-        "ReturnStructArgumentStruct8BytesHomogeneousFloat",
-        isLeaf: true);
-
-/// Test that a struct passed in as argument can be returned.
-/// Especially for ffi callbacks.
-/// Struct is passed in float registers in most ABIs.
-void testReturnStructArgumentStruct8BytesHomogeneousFloatLeaf() {
-  final a0Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a0 = a0Pointer.ref;
-
-  a0.a0 = -1.0;
-  a0.a1 = 2.0;
-
-  final result = returnStructArgumentStruct8BytesHomogeneousFloatLeaf(a0);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0.a0, result.a0);
-  Expect.approxEquals(a0.a1, result.a1);
-
-  calloc.free(a0Pointer);
-}
-
-final returnStructArgumentStruct20BytesHomogeneousInt32Leaf =
-    ffiTestFunctions
-        .lookupFunction<
-                Struct20BytesHomogeneousInt32 Function(
-                    Struct20BytesHomogeneousInt32),
-                Struct20BytesHomogeneousInt32 Function(
-                    Struct20BytesHomogeneousInt32)>(
-            "ReturnStructArgumentStruct20BytesHomogeneousInt32",
-            isLeaf: true);
-
-/// On arm64, both argument and return value are passed in by pointer.
-void testReturnStructArgumentStruct20BytesHomogeneousInt32Leaf() {
-  final a0Pointer = calloc<Struct20BytesHomogeneousInt32>();
-  final Struct20BytesHomogeneousInt32 a0 = a0Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a0.a2 = -3;
-  a0.a3 = 4;
-  a0.a4 = -5;
-
-  final result = returnStructArgumentStruct20BytesHomogeneousInt32Leaf(a0);
-
-  print("result = $result");
-
-  Expect.equals(a0.a0, result.a0);
-  Expect.equals(a0.a1, result.a1);
-  Expect.equals(a0.a2, result.a2);
-  Expect.equals(a0.a3, result.a3);
-  Expect.equals(a0.a4, result.a4);
-
-  calloc.free(a0Pointer);
-}
-
-final returnStructArgumentInt32x8Struct20BytesHomogeneouLeaf =
-    ffiTestFunctions.lookupFunction<
-            Struct20BytesHomogeneousInt32 Function(Int32, Int32, Int32, Int32,
-                Int32, Int32, Int32, Int32, Struct20BytesHomogeneousInt32),
-            Struct20BytesHomogeneousInt32 Function(int, int, int, int, int, int,
-                int, int, Struct20BytesHomogeneousInt32)>(
-        "ReturnStructArgumentInt32x8Struct20BytesHomogeneou",
-        isLeaf: true);
-
-/// On arm64, both argument and return value are passed in by pointer.
-/// Ints exhaust registers, so that pointer is passed on stack.
-void testReturnStructArgumentInt32x8Struct20BytesHomogeneouLeaf() {
-  int a0;
-  int a1;
-  int a2;
-  int a3;
-  int a4;
-  int a5;
-  int a6;
-  int a7;
-  final a8Pointer = calloc<Struct20BytesHomogeneousInt32>();
-  final Struct20BytesHomogeneousInt32 a8 = a8Pointer.ref;
-
-  a0 = -1;
-  a1 = 2;
-  a2 = -3;
-  a3 = 4;
-  a4 = -5;
-  a5 = 6;
-  a6 = -7;
-  a7 = 8;
-  a8.a0 = -9;
-  a8.a1 = 10;
-  a8.a2 = -11;
-  a8.a3 = 12;
-  a8.a4 = -13;
-
-  final result = returnStructArgumentInt32x8Struct20BytesHomogeneouLeaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8);
-
-  print("result = $result");
-
-  Expect.equals(a8.a0, result.a0);
-  Expect.equals(a8.a1, result.a1);
-  Expect.equals(a8.a2, result.a2);
-  Expect.equals(a8.a3, result.a3);
-  Expect.equals(a8.a4, result.a4);
-
-  calloc.free(a8Pointer);
-}
-
-final returnStructArgumentStruct8BytesInlineArrayIntLeaf =
-    ffiTestFunctions.lookupFunction<
-            Struct8BytesInlineArrayInt Function(Struct8BytesInlineArrayInt),
-            Struct8BytesInlineArrayInt Function(Struct8BytesInlineArrayInt)>(
-        "ReturnStructArgumentStruct8BytesInlineArrayInt",
-        isLeaf: true);
-
-/// Test returning struct with inline array.
-void testReturnStructArgumentStruct8BytesInlineArrayIntLeaf() {
-  final a0Pointer = calloc<Struct8BytesInlineArrayInt>();
-  final Struct8BytesInlineArrayInt a0 = a0Pointer.ref;
-
-  a0.a0[0] = 1;
-  a0.a0[1] = 2;
-  a0.a0[2] = 3;
-  a0.a0[3] = 4;
-  a0.a0[4] = 5;
-  a0.a0[5] = 6;
-  a0.a0[6] = 7;
-  a0.a0[7] = 8;
-
-  final result = returnStructArgumentStruct8BytesInlineArrayIntLeaf(a0);
-
-  print("result = $result");
-
-  for (int i = 0; i < 8; i++) {
-    Expect.equals(a0.a0[i], result.a0[i]);
-  }
-
-  calloc.free(a0Pointer);
-}
-
-final returnStructArgumentStructStruct16BytesHomogeneousLeaf =
-    ffiTestFunctions.lookupFunction<
-            StructStruct16BytesHomogeneousFloat2 Function(
-                StructStruct16BytesHomogeneousFloat2),
-            StructStruct16BytesHomogeneousFloat2 Function(
-                StructStruct16BytesHomogeneousFloat2)>(
-        "ReturnStructArgumentStructStruct16BytesHomogeneous",
-        isLeaf: true);
-
-/// Return value in FPU registers on arm hardfp and arm64.
-void testReturnStructArgumentStructStruct16BytesHomogeneousLeaf() {
-  final a0Pointer = calloc<StructStruct16BytesHomogeneousFloat2>();
-  final StructStruct16BytesHomogeneousFloat2 a0 = a0Pointer.ref;
-
-  a0.a0.a0 = -1.0;
-  a0.a1[0].a0 = 2.0;
-  a0.a1[1].a0 = -3.0;
-  a0.a2 = 4.0;
-
-  final result = returnStructArgumentStructStruct16BytesHomogeneousLeaf(a0);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0.a0.a0, result.a0.a0);
-  for (int i = 0; i < 2; i++) {
-    Expect.approxEquals(a0.a1[i].a0, result.a1[i].a0);
-  }
-  Expect.approxEquals(a0.a2, result.a2);
-
-  calloc.free(a0Pointer);
-}
-
-final returnStructArgumentStructStruct32BytesHomogeneousLeaf =
-    ffiTestFunctions.lookupFunction<
-            StructStruct32BytesHomogeneousDouble2 Function(
-                StructStruct32BytesHomogeneousDouble2),
-            StructStruct32BytesHomogeneousDouble2 Function(
-                StructStruct32BytesHomogeneousDouble2)>(
-        "ReturnStructArgumentStructStruct32BytesHomogeneous",
-        isLeaf: true);
-
-/// Return value in FPU registers on arm64.
-void testReturnStructArgumentStructStruct32BytesHomogeneousLeaf() {
-  final a0Pointer = calloc<StructStruct32BytesHomogeneousDouble2>();
-  final StructStruct32BytesHomogeneousDouble2 a0 = a0Pointer.ref;
-
-  a0.a0.a0 = -1.0;
-  a0.a1[0].a0 = 2.0;
-  a0.a1[1].a0 = -3.0;
-  a0.a2 = 4.0;
-
-  final result = returnStructArgumentStructStruct32BytesHomogeneousLeaf(a0);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0.a0.a0, result.a0.a0);
-  for (int i = 0; i < 2; i++) {
-    Expect.approxEquals(a0.a1[i].a0, result.a1[i].a0);
-  }
-  Expect.approxEquals(a0.a2, result.a2);
-
-  calloc.free(a0Pointer);
-}
-
-final returnStructArgumentStructStruct16BytesMixed3Leaf =
-    ffiTestFunctions.lookupFunction<
-            StructStruct16BytesMixed3 Function(StructStruct16BytesMixed3),
-            StructStruct16BytesMixed3 Function(StructStruct16BytesMixed3)>(
-        "ReturnStructArgumentStructStruct16BytesMixed3",
-        isLeaf: true);
-
-/// On x64 Linux, return value is split over FP and int registers.
-void testReturnStructArgumentStructStruct16BytesMixed3Leaf() {
-  final a0Pointer = calloc<StructStruct16BytesMixed3>();
-  final StructStruct16BytesMixed3 a0 = a0Pointer.ref;
-
-  a0.a0.a0 = -1.0;
-  a0.a1[0].a0 = 2.0;
-  a0.a1[0].a1 = -3;
-  a0.a1[0].a2 = 4;
-  a0.a2[0] = -5;
-  a0.a2[1] = 6;
-
-  final result = returnStructArgumentStructStruct16BytesMixed3Leaf(a0);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0.a0.a0, result.a0.a0);
-  for (int i = 0; i < 1; i++) {
-    Expect.approxEquals(a0.a1[i].a0, result.a1[i].a0);
-    Expect.equals(a0.a1[i].a1, result.a1[i].a1);
-    Expect.equals(a0.a1[i].a2, result.a1[i].a2);
-  }
-  for (int i = 0; i < 2; i++) {
-    Expect.equals(a0.a2[i], result.a2[i]);
-  }
-
-  calloc.free(a0Pointer);
-}
-
-final returnStructAlignmentInt16Leaf = ffiTestFunctions.lookupFunction<
-    StructAlignmentInt16 Function(Int8, Int16, Int8),
-    StructAlignmentInt16 Function(
-        int, int, int)>("ReturnStructAlignmentInt16", isLeaf: true);
-
-/// Test alignment and padding of 16 byte int within struct.
-void testReturnStructAlignmentInt16Leaf() {
-  int a0;
-  int a1;
-  int a2;
-
-  a0 = -1;
-  a1 = 2;
-  a2 = -3;
-
-  final result = returnStructAlignmentInt16Leaf(a0, a1, a2);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-}
-
-final returnStructAlignmentInt32Leaf = ffiTestFunctions.lookupFunction<
-    StructAlignmentInt32 Function(Int8, Int32, Int8),
-    StructAlignmentInt32 Function(
-        int, int, int)>("ReturnStructAlignmentInt32", isLeaf: true);
-
-/// Test alignment and padding of 32 byte int within struct.
-void testReturnStructAlignmentInt32Leaf() {
-  int a0;
-  int a1;
-  int a2;
-
-  a0 = -1;
-  a1 = 2;
-  a2 = -3;
-
-  final result = returnStructAlignmentInt32Leaf(a0, a1, a2);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-}
-
-final returnStructAlignmentInt64Leaf = ffiTestFunctions.lookupFunction<
-    StructAlignmentInt64 Function(Int8, Int64, Int8),
-    StructAlignmentInt64 Function(
-        int, int, int)>("ReturnStructAlignmentInt64", isLeaf: true);
-
-/// Test alignment and padding of 64 byte int within struct.
-void testReturnStructAlignmentInt64Leaf() {
-  int a0;
-  int a1;
-  int a2;
-
-  a0 = -1;
-  a1 = 2;
-  a2 = -3;
-
-  final result = returnStructAlignmentInt64Leaf(a0, a1, a2);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-}
-
-final returnStruct8BytesNestedIntLeaf = ffiTestFunctions.lookupFunction<
-        Struct8BytesNestedInt Function(
-            Struct4BytesHomogeneousInt16, Struct4BytesHomogeneousInt16),
-        Struct8BytesNestedInt Function(
-            Struct4BytesHomogeneousInt16, Struct4BytesHomogeneousInt16)>(
-    "ReturnStruct8BytesNestedInt",
-    isLeaf: true);
-
-/// Simple nested struct.
-void testReturnStruct8BytesNestedIntLeaf() {
-  final a0Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a1 = a1Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a1.a0 = -3;
-  a1.a1 = 4;
-
-  final result = returnStruct8BytesNestedIntLeaf(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(a0.a0, result.a0.a0);
-  Expect.equals(a0.a1, result.a0.a1);
-  Expect.equals(a1.a0, result.a1.a0);
-  Expect.equals(a1.a1, result.a1.a1);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-}
-
-final returnStruct8BytesNestedFloatLeaf = ffiTestFunctions.lookupFunction<
-    Struct8BytesNestedFloat Function(Struct4BytesFloat, Struct4BytesFloat),
-    Struct8BytesNestedFloat Function(Struct4BytesFloat,
-        Struct4BytesFloat)>("ReturnStruct8BytesNestedFloat", isLeaf: true);
-
-/// Simple nested struct with floats.
-void testReturnStruct8BytesNestedFloatLeaf() {
-  final a0Pointer = calloc<Struct4BytesFloat>();
-  final Struct4BytesFloat a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct4BytesFloat>();
-  final Struct4BytesFloat a1 = a1Pointer.ref;
-
-  a0.a0 = -1.0;
-  a1.a0 = 2.0;
-
-  final result = returnStruct8BytesNestedFloatLeaf(a0, a1);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0.a0, result.a0.a0);
-  Expect.approxEquals(a1.a0, result.a1.a0);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-}
-
-final returnStruct8BytesNestedFloat2Leaf = ffiTestFunctions.lookupFunction<
-    Struct8BytesNestedFloat2 Function(Struct4BytesFloat, Float),
-    Struct8BytesNestedFloat2 Function(Struct4BytesFloat,
-        double)>("ReturnStruct8BytesNestedFloat2", isLeaf: true);
-
-/// The nesting is irregular, testing homogenous float rules on arm and arm64,
-/// and the fpu register usage on x64.
-void testReturnStruct8BytesNestedFloat2Leaf() {
-  final a0Pointer = calloc<Struct4BytesFloat>();
-  final Struct4BytesFloat a0 = a0Pointer.ref;
-  double a1;
-
-  a0.a0 = -1.0;
-  a1 = 2.0;
-
-  final result = returnStruct8BytesNestedFloat2Leaf(a0, a1);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0.a0, result.a0.a0);
-  Expect.approxEquals(a1, result.a1);
-
-  calloc.free(a0Pointer);
-}
-
-final returnStruct8BytesNestedMixedLeaf = ffiTestFunctions.lookupFunction<
-    Struct8BytesNestedMixed Function(
-        Struct4BytesHomogeneousInt16, Struct4BytesFloat),
-    Struct8BytesNestedMixed Function(Struct4BytesHomogeneousInt16,
-        Struct4BytesFloat)>("ReturnStruct8BytesNestedMixed", isLeaf: true);
-
-/// Simple nested struct with mixed members.
-void testReturnStruct8BytesNestedMixedLeaf() {
-  final a0Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct4BytesFloat>();
-  final Struct4BytesFloat a1 = a1Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a1.a0 = -3.0;
-
-  final result = returnStruct8BytesNestedMixedLeaf(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(a0.a0, result.a0.a0);
-  Expect.equals(a0.a1, result.a0.a1);
-  Expect.approxEquals(a1.a0, result.a1.a0);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-}
-
-final returnStruct16BytesNestedIntLeaf = ffiTestFunctions.lookupFunction<
-    Struct16BytesNestedInt Function(
-        Struct8BytesNestedInt, Struct8BytesNestedInt),
-    Struct16BytesNestedInt Function(Struct8BytesNestedInt,
-        Struct8BytesNestedInt)>("ReturnStruct16BytesNestedInt", isLeaf: true);
-
-/// Deeper nested struct to test recursive member access.
-void testReturnStruct16BytesNestedIntLeaf() {
-  final a0Pointer = calloc<Struct8BytesNestedInt>();
-  final Struct8BytesNestedInt a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct8BytesNestedInt>();
-  final Struct8BytesNestedInt a1 = a1Pointer.ref;
-
-  a0.a0.a0 = -1;
-  a0.a0.a1 = 2;
-  a0.a1.a0 = -3;
-  a0.a1.a1 = 4;
-  a1.a0.a0 = -5;
-  a1.a0.a1 = 6;
-  a1.a1.a0 = -7;
-  a1.a1.a1 = 8;
-
-  final result = returnStruct16BytesNestedIntLeaf(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(a0.a0.a0, result.a0.a0.a0);
-  Expect.equals(a0.a0.a1, result.a0.a0.a1);
-  Expect.equals(a0.a1.a0, result.a0.a1.a0);
-  Expect.equals(a0.a1.a1, result.a0.a1.a1);
-  Expect.equals(a1.a0.a0, result.a1.a0.a0);
-  Expect.equals(a1.a0.a1, result.a1.a0.a1);
-  Expect.equals(a1.a1.a0, result.a1.a1.a0);
-  Expect.equals(a1.a1.a1, result.a1.a1.a1);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-}
-
-final returnStruct32BytesNestedIntLeaf = ffiTestFunctions.lookupFunction<
-    Struct32BytesNestedInt Function(
-        Struct16BytesNestedInt, Struct16BytesNestedInt),
-    Struct32BytesNestedInt Function(Struct16BytesNestedInt,
-        Struct16BytesNestedInt)>("ReturnStruct32BytesNestedInt", isLeaf: true);
-
-/// Even deeper nested struct to test recursive member access.
-void testReturnStruct32BytesNestedIntLeaf() {
-  final a0Pointer = calloc<Struct16BytesNestedInt>();
-  final Struct16BytesNestedInt a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct16BytesNestedInt>();
-  final Struct16BytesNestedInt a1 = a1Pointer.ref;
-
-  a0.a0.a0.a0 = -1;
-  a0.a0.a0.a1 = 2;
-  a0.a0.a1.a0 = -3;
-  a0.a0.a1.a1 = 4;
-  a0.a1.a0.a0 = -5;
-  a0.a1.a0.a1 = 6;
-  a0.a1.a1.a0 = -7;
-  a0.a1.a1.a1 = 8;
-  a1.a0.a0.a0 = -9;
-  a1.a0.a0.a1 = 10;
-  a1.a0.a1.a0 = -11;
-  a1.a0.a1.a1 = 12;
-  a1.a1.a0.a0 = -13;
-  a1.a1.a0.a1 = 14;
-  a1.a1.a1.a0 = -15;
-  a1.a1.a1.a1 = 16;
-
-  final result = returnStruct32BytesNestedIntLeaf(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(a0.a0.a0.a0, result.a0.a0.a0.a0);
-  Expect.equals(a0.a0.a0.a1, result.a0.a0.a0.a1);
-  Expect.equals(a0.a0.a1.a0, result.a0.a0.a1.a0);
-  Expect.equals(a0.a0.a1.a1, result.a0.a0.a1.a1);
-  Expect.equals(a0.a1.a0.a0, result.a0.a1.a0.a0);
-  Expect.equals(a0.a1.a0.a1, result.a0.a1.a0.a1);
-  Expect.equals(a0.a1.a1.a0, result.a0.a1.a1.a0);
-  Expect.equals(a0.a1.a1.a1, result.a0.a1.a1.a1);
-  Expect.equals(a1.a0.a0.a0, result.a1.a0.a0.a0);
-  Expect.equals(a1.a0.a0.a1, result.a1.a0.a0.a1);
-  Expect.equals(a1.a0.a1.a0, result.a1.a0.a1.a0);
-  Expect.equals(a1.a0.a1.a1, result.a1.a0.a1.a1);
-  Expect.equals(a1.a1.a0.a0, result.a1.a1.a0.a0);
-  Expect.equals(a1.a1.a0.a1, result.a1.a1.a0.a1);
-  Expect.equals(a1.a1.a1.a0, result.a1.a1.a1.a0);
-  Expect.equals(a1.a1.a1.a1, result.a1.a1.a1.a1);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-}
-
-final returnStructNestedIntStructAlignmentInt16Leaf =
-    ffiTestFunctions.lookupFunction<
-            StructNestedIntStructAlignmentInt16 Function(
-                StructAlignmentInt16, StructAlignmentInt16),
-            StructNestedIntStructAlignmentInt16 Function(
-                StructAlignmentInt16, StructAlignmentInt16)>(
-        "ReturnStructNestedIntStructAlignmentInt16",
-        isLeaf: true);
-
-/// Test alignment and padding of nested struct with 16 byte int.
-void testReturnStructNestedIntStructAlignmentInt16Leaf() {
-  final a0Pointer = calloc<StructAlignmentInt16>();
-  final StructAlignmentInt16 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<StructAlignmentInt16>();
-  final StructAlignmentInt16 a1 = a1Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a0.a2 = -3;
-  a1.a0 = 4;
-  a1.a1 = -5;
-  a1.a2 = 6;
-
-  final result = returnStructNestedIntStructAlignmentInt16Leaf(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(a0.a0, result.a0.a0);
-  Expect.equals(a0.a1, result.a0.a1);
-  Expect.equals(a0.a2, result.a0.a2);
-  Expect.equals(a1.a0, result.a1.a0);
-  Expect.equals(a1.a1, result.a1.a1);
-  Expect.equals(a1.a2, result.a1.a2);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-}
-
-final returnStructNestedIntStructAlignmentInt32Leaf =
-    ffiTestFunctions.lookupFunction<
-            StructNestedIntStructAlignmentInt32 Function(
-                StructAlignmentInt32, StructAlignmentInt32),
-            StructNestedIntStructAlignmentInt32 Function(
-                StructAlignmentInt32, StructAlignmentInt32)>(
-        "ReturnStructNestedIntStructAlignmentInt32",
-        isLeaf: true);
-
-/// Test alignment and padding of nested struct with 32 byte int.
-void testReturnStructNestedIntStructAlignmentInt32Leaf() {
-  final a0Pointer = calloc<StructAlignmentInt32>();
-  final StructAlignmentInt32 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<StructAlignmentInt32>();
-  final StructAlignmentInt32 a1 = a1Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a0.a2 = -3;
-  a1.a0 = 4;
-  a1.a1 = -5;
-  a1.a2 = 6;
-
-  final result = returnStructNestedIntStructAlignmentInt32Leaf(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(a0.a0, result.a0.a0);
-  Expect.equals(a0.a1, result.a0.a1);
-  Expect.equals(a0.a2, result.a0.a2);
-  Expect.equals(a1.a0, result.a1.a0);
-  Expect.equals(a1.a1, result.a1.a1);
-  Expect.equals(a1.a2, result.a1.a2);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-}
-
-final returnStructNestedIntStructAlignmentInt64Leaf =
-    ffiTestFunctions.lookupFunction<
-            StructNestedIntStructAlignmentInt64 Function(
-                StructAlignmentInt64, StructAlignmentInt64),
-            StructNestedIntStructAlignmentInt64 Function(
-                StructAlignmentInt64, StructAlignmentInt64)>(
-        "ReturnStructNestedIntStructAlignmentInt64",
-        isLeaf: true);
-
-/// Test alignment and padding of nested struct with 64 byte int.
-void testReturnStructNestedIntStructAlignmentInt64Leaf() {
-  final a0Pointer = calloc<StructAlignmentInt64>();
-  final StructAlignmentInt64 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<StructAlignmentInt64>();
-  final StructAlignmentInt64 a1 = a1Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a0.a2 = -3;
-  a1.a0 = 4;
-  a1.a1 = -5;
-  a1.a2 = 6;
-
-  final result = returnStructNestedIntStructAlignmentInt64Leaf(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(a0.a0, result.a0.a0);
-  Expect.equals(a0.a1, result.a0.a1);
-  Expect.equals(a0.a2, result.a0.a2);
-  Expect.equals(a1.a0, result.a1.a0);
-  Expect.equals(a1.a1, result.a1.a1);
-  Expect.equals(a1.a2, result.a1.a2);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-}
-
-final returnStructNestedIrregularEvenBiggerLeaf =
-    ffiTestFunctions.lookupFunction<
-        StructNestedIrregularEvenBigger Function(Uint64,
-            StructNestedIrregularBigger, StructNestedIrregularBigger, Double),
-        StructNestedIrregularEvenBigger Function(
-            int,
-            StructNestedIrregularBigger,
-            StructNestedIrregularBigger,
-            double)>("ReturnStructNestedIrregularEvenBigger", isLeaf: true);
-
-/// Return big irregular struct as smoke test.
-void testReturnStructNestedIrregularEvenBiggerLeaf() {
-  int a0;
-  final a1Pointer = calloc<StructNestedIrregularBigger>();
-  final StructNestedIrregularBigger a1 = a1Pointer.ref;
-  final a2Pointer = calloc<StructNestedIrregularBigger>();
-  final StructNestedIrregularBigger a2 = a2Pointer.ref;
-  double a3;
-
-  a0 = 1;
-  a1.a0.a0 = 2;
-  a1.a0.a1.a0.a0 = -3;
-  a1.a0.a1.a0.a1 = 4;
-  a1.a0.a1.a1.a0 = -5.0;
-  a1.a0.a2 = 6;
-  a1.a0.a3.a0.a0 = -7.0;
-  a1.a0.a3.a1 = 8.0;
-  a1.a0.a4 = 9;
-  a1.a0.a5.a0.a0 = 10.0;
-  a1.a0.a5.a1.a0 = -11.0;
-  a1.a0.a6 = 12;
-  a1.a1.a0.a0 = -13;
-  a1.a1.a0.a1 = 14;
-  a1.a1.a1.a0 = -15.0;
-  a1.a2 = 16.0;
-  a1.a3 = -17.0;
-  a2.a0.a0 = 18;
-  a2.a0.a1.a0.a0 = -19;
-  a2.a0.a1.a0.a1 = 20;
-  a2.a0.a1.a1.a0 = -21.0;
-  a2.a0.a2 = 22;
-  a2.a0.a3.a0.a0 = -23.0;
-  a2.a0.a3.a1 = 24.0;
-  a2.a0.a4 = 25;
-  a2.a0.a5.a0.a0 = 26.0;
-  a2.a0.a5.a1.a0 = -27.0;
-  a2.a0.a6 = 28;
-  a2.a1.a0.a0 = -29;
-  a2.a1.a0.a1 = 30;
-  a2.a1.a1.a0 = -31.0;
-  a2.a2 = 32.0;
-  a2.a3 = -33.0;
-  a3 = 34.0;
-
-  final result = returnStructNestedIrregularEvenBiggerLeaf(a0, a1, a2, a3);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1.a0.a0, result.a1.a0.a0);
-  Expect.equals(a1.a0.a1.a0.a0, result.a1.a0.a1.a0.a0);
-  Expect.equals(a1.a0.a1.a0.a1, result.a1.a0.a1.a0.a1);
-  Expect.approxEquals(a1.a0.a1.a1.a0, result.a1.a0.a1.a1.a0);
-  Expect.equals(a1.a0.a2, result.a1.a0.a2);
-  Expect.approxEquals(a1.a0.a3.a0.a0, result.a1.a0.a3.a0.a0);
-  Expect.approxEquals(a1.a0.a3.a1, result.a1.a0.a3.a1);
-  Expect.equals(a1.a0.a4, result.a1.a0.a4);
-  Expect.approxEquals(a1.a0.a5.a0.a0, result.a1.a0.a5.a0.a0);
-  Expect.approxEquals(a1.a0.a5.a1.a0, result.a1.a0.a5.a1.a0);
-  Expect.equals(a1.a0.a6, result.a1.a0.a6);
-  Expect.equals(a1.a1.a0.a0, result.a1.a1.a0.a0);
-  Expect.equals(a1.a1.a0.a1, result.a1.a1.a0.a1);
-  Expect.approxEquals(a1.a1.a1.a0, result.a1.a1.a1.a0);
-  Expect.approxEquals(a1.a2, result.a1.a2);
-  Expect.approxEquals(a1.a3, result.a1.a3);
-  Expect.equals(a2.a0.a0, result.a2.a0.a0);
-  Expect.equals(a2.a0.a1.a0.a0, result.a2.a0.a1.a0.a0);
-  Expect.equals(a2.a0.a1.a0.a1, result.a2.a0.a1.a0.a1);
-  Expect.approxEquals(a2.a0.a1.a1.a0, result.a2.a0.a1.a1.a0);
-  Expect.equals(a2.a0.a2, result.a2.a0.a2);
-  Expect.approxEquals(a2.a0.a3.a0.a0, result.a2.a0.a3.a0.a0);
-  Expect.approxEquals(a2.a0.a3.a1, result.a2.a0.a3.a1);
-  Expect.equals(a2.a0.a4, result.a2.a0.a4);
-  Expect.approxEquals(a2.a0.a5.a0.a0, result.a2.a0.a5.a0.a0);
-  Expect.approxEquals(a2.a0.a5.a1.a0, result.a2.a0.a5.a1.a0);
-  Expect.equals(a2.a0.a6, result.a2.a0.a6);
-  Expect.equals(a2.a1.a0.a0, result.a2.a1.a0.a0);
-  Expect.equals(a2.a1.a0.a1, result.a2.a1.a0.a1);
-  Expect.approxEquals(a2.a1.a1.a0, result.a2.a1.a1.a0);
-  Expect.approxEquals(a2.a2, result.a2.a2);
-  Expect.approxEquals(a2.a3, result.a2.a3);
-  Expect.approxEquals(a3, result.a3);
-
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-}
diff --git a/tests/ffi_2/function_structs_by_value_generated_ret_arg_test.dart b/tests/ffi_2/function_structs_by_value_generated_ret_arg_test.dart
deleted file mode 100644
index 2a2bf81a8ae..00000000000
--- a/tests/ffi_2/function_structs_by_value_generated_ret_arg_test.dart
+++ /dev/null
@@ -1,833 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// This file has been automatically generated. Please do not edit it manually.
-// Generated by tests/ffi/generator/structs_by_value_tests_generator.dart.
-//
-// SharedObjects=ffi_test_functions
-// VMOptions=
-// VMOptions=--deterministic --optimization-counter-threshold=90
-// VMOptions=--use-slow-path
-// VMOptions=--use-slow-path --stacktrace-every=100
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
-
-import 'dylib_utils.dart';
-
-// Reuse the compound classes.
-import 'function_structs_by_value_generated_compounds.dart';
-
-final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-void main() {
-  for (int i = 0; i < 100; ++i) {
-    testReturnStructArgumentStruct1ByteInt();
-    testReturnStructArgumentInt32x8Struct1ByteInt();
-    testReturnStructArgumentStruct8BytesHomogeneousFloat();
-    testReturnStructArgumentStruct20BytesHomogeneousInt32();
-    testReturnStructArgumentInt32x8Struct20BytesHomogeneou();
-    testReturnStructArgumentStruct8BytesInlineArrayInt();
-    testReturnStructArgumentStructStruct16BytesHomogeneous();
-    testReturnStructArgumentStructStruct32BytesHomogeneous();
-    testReturnStructArgumentStructStruct16BytesMixed3();
-    testReturnStructAlignmentInt16();
-    testReturnStructAlignmentInt32();
-    testReturnStructAlignmentInt64();
-    testReturnStruct8BytesNestedInt();
-    testReturnStruct8BytesNestedFloat();
-    testReturnStruct8BytesNestedFloat2();
-    testReturnStruct8BytesNestedMixed();
-    testReturnStruct16BytesNestedInt();
-    testReturnStruct32BytesNestedInt();
-    testReturnStructNestedIntStructAlignmentInt16();
-    testReturnStructNestedIntStructAlignmentInt32();
-    testReturnStructNestedIntStructAlignmentInt64();
-    testReturnStructNestedIrregularEvenBigger();
-  }
-}
-
-final returnStructArgumentStruct1ByteInt = ffiTestFunctions.lookupFunction<
-    Struct1ByteInt Function(Struct1ByteInt),
-    Struct1ByteInt Function(
-        Struct1ByteInt)>("ReturnStructArgumentStruct1ByteInt");
-
-/// Test that a struct passed in as argument can be returned.
-/// Especially for ffi callbacks.
-/// Struct is passed in int registers in most ABIs.
-void testReturnStructArgumentStruct1ByteInt() {
-  final a0Pointer = calloc<Struct1ByteInt>();
-  final Struct1ByteInt a0 = a0Pointer.ref;
-
-  a0.a0 = -1;
-
-  final result = returnStructArgumentStruct1ByteInt(a0);
-
-  print("result = $result");
-
-  Expect.equals(a0.a0, result.a0);
-
-  calloc.free(a0Pointer);
-}
-
-final returnStructArgumentInt32x8Struct1ByteInt =
-    ffiTestFunctions.lookupFunction<
-        Struct1ByteInt Function(Int32, Int32, Int32, Int32, Int32, Int32, Int32,
-            Int32, Struct1ByteInt),
-        Struct1ByteInt Function(int, int, int, int, int, int, int, int,
-            Struct1ByteInt)>("ReturnStructArgumentInt32x8Struct1ByteInt");
-
-/// Test that a struct passed in as argument can be returned.
-/// Especially for ffi callbacks.
-/// Struct is passed on stack on all ABIs.
-void testReturnStructArgumentInt32x8Struct1ByteInt() {
-  int a0;
-  int a1;
-  int a2;
-  int a3;
-  int a4;
-  int a5;
-  int a6;
-  int a7;
-  final a8Pointer = calloc<Struct1ByteInt>();
-  final Struct1ByteInt a8 = a8Pointer.ref;
-
-  a0 = -1;
-  a1 = 2;
-  a2 = -3;
-  a3 = 4;
-  a4 = -5;
-  a5 = 6;
-  a6 = -7;
-  a7 = 8;
-  a8.a0 = -9;
-
-  final result = returnStructArgumentInt32x8Struct1ByteInt(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8);
-
-  print("result = $result");
-
-  Expect.equals(a8.a0, result.a0);
-
-  calloc.free(a8Pointer);
-}
-
-final returnStructArgumentStruct8BytesHomogeneousFloat =
-    ffiTestFunctions.lookupFunction<
-            Struct8BytesHomogeneousFloat Function(Struct8BytesHomogeneousFloat),
-            Struct8BytesHomogeneousFloat Function(
-                Struct8BytesHomogeneousFloat)>(
-        "ReturnStructArgumentStruct8BytesHomogeneousFloat");
-
-/// Test that a struct passed in as argument can be returned.
-/// Especially for ffi callbacks.
-/// Struct is passed in float registers in most ABIs.
-void testReturnStructArgumentStruct8BytesHomogeneousFloat() {
-  final a0Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a0 = a0Pointer.ref;
-
-  a0.a0 = -1.0;
-  a0.a1 = 2.0;
-
-  final result = returnStructArgumentStruct8BytesHomogeneousFloat(a0);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0.a0, result.a0);
-  Expect.approxEquals(a0.a1, result.a1);
-
-  calloc.free(a0Pointer);
-}
-
-final returnStructArgumentStruct20BytesHomogeneousInt32 =
-    ffiTestFunctions
-        .lookupFunction<
-                Struct20BytesHomogeneousInt32 Function(
-                    Struct20BytesHomogeneousInt32),
-                Struct20BytesHomogeneousInt32 Function(
-                    Struct20BytesHomogeneousInt32)>(
-            "ReturnStructArgumentStruct20BytesHomogeneousInt32");
-
-/// On arm64, both argument and return value are passed in by pointer.
-void testReturnStructArgumentStruct20BytesHomogeneousInt32() {
-  final a0Pointer = calloc<Struct20BytesHomogeneousInt32>();
-  final Struct20BytesHomogeneousInt32 a0 = a0Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a0.a2 = -3;
-  a0.a3 = 4;
-  a0.a4 = -5;
-
-  final result = returnStructArgumentStruct20BytesHomogeneousInt32(a0);
-
-  print("result = $result");
-
-  Expect.equals(a0.a0, result.a0);
-  Expect.equals(a0.a1, result.a1);
-  Expect.equals(a0.a2, result.a2);
-  Expect.equals(a0.a3, result.a3);
-  Expect.equals(a0.a4, result.a4);
-
-  calloc.free(a0Pointer);
-}
-
-final returnStructArgumentInt32x8Struct20BytesHomogeneou =
-    ffiTestFunctions.lookupFunction<
-            Struct20BytesHomogeneousInt32 Function(Int32, Int32, Int32, Int32,
-                Int32, Int32, Int32, Int32, Struct20BytesHomogeneousInt32),
-            Struct20BytesHomogeneousInt32 Function(int, int, int, int, int, int,
-                int, int, Struct20BytesHomogeneousInt32)>(
-        "ReturnStructArgumentInt32x8Struct20BytesHomogeneou");
-
-/// On arm64, both argument and return value are passed in by pointer.
-/// Ints exhaust registers, so that pointer is passed on stack.
-void testReturnStructArgumentInt32x8Struct20BytesHomogeneou() {
-  int a0;
-  int a1;
-  int a2;
-  int a3;
-  int a4;
-  int a5;
-  int a6;
-  int a7;
-  final a8Pointer = calloc<Struct20BytesHomogeneousInt32>();
-  final Struct20BytesHomogeneousInt32 a8 = a8Pointer.ref;
-
-  a0 = -1;
-  a1 = 2;
-  a2 = -3;
-  a3 = 4;
-  a4 = -5;
-  a5 = 6;
-  a6 = -7;
-  a7 = 8;
-  a8.a0 = -9;
-  a8.a1 = 10;
-  a8.a2 = -11;
-  a8.a3 = 12;
-  a8.a4 = -13;
-
-  final result = returnStructArgumentInt32x8Struct20BytesHomogeneou(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8);
-
-  print("result = $result");
-
-  Expect.equals(a8.a0, result.a0);
-  Expect.equals(a8.a1, result.a1);
-  Expect.equals(a8.a2, result.a2);
-  Expect.equals(a8.a3, result.a3);
-  Expect.equals(a8.a4, result.a4);
-
-  calloc.free(a8Pointer);
-}
-
-final returnStructArgumentStruct8BytesInlineArrayInt =
-    ffiTestFunctions.lookupFunction<
-            Struct8BytesInlineArrayInt Function(Struct8BytesInlineArrayInt),
-            Struct8BytesInlineArrayInt Function(Struct8BytesInlineArrayInt)>(
-        "ReturnStructArgumentStruct8BytesInlineArrayInt");
-
-/// Test returning struct with inline array.
-void testReturnStructArgumentStruct8BytesInlineArrayInt() {
-  final a0Pointer = calloc<Struct8BytesInlineArrayInt>();
-  final Struct8BytesInlineArrayInt a0 = a0Pointer.ref;
-
-  a0.a0[0] = 1;
-  a0.a0[1] = 2;
-  a0.a0[2] = 3;
-  a0.a0[3] = 4;
-  a0.a0[4] = 5;
-  a0.a0[5] = 6;
-  a0.a0[6] = 7;
-  a0.a0[7] = 8;
-
-  final result = returnStructArgumentStruct8BytesInlineArrayInt(a0);
-
-  print("result = $result");
-
-  for (int i = 0; i < 8; i++) {
-    Expect.equals(a0.a0[i], result.a0[i]);
-  }
-
-  calloc.free(a0Pointer);
-}
-
-final returnStructArgumentStructStruct16BytesHomogeneous =
-    ffiTestFunctions.lookupFunction<
-            StructStruct16BytesHomogeneousFloat2 Function(
-                StructStruct16BytesHomogeneousFloat2),
-            StructStruct16BytesHomogeneousFloat2 Function(
-                StructStruct16BytesHomogeneousFloat2)>(
-        "ReturnStructArgumentStructStruct16BytesHomogeneous");
-
-/// Return value in FPU registers on arm hardfp and arm64.
-void testReturnStructArgumentStructStruct16BytesHomogeneous() {
-  final a0Pointer = calloc<StructStruct16BytesHomogeneousFloat2>();
-  final StructStruct16BytesHomogeneousFloat2 a0 = a0Pointer.ref;
-
-  a0.a0.a0 = -1.0;
-  a0.a1[0].a0 = 2.0;
-  a0.a1[1].a0 = -3.0;
-  a0.a2 = 4.0;
-
-  final result = returnStructArgumentStructStruct16BytesHomogeneous(a0);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0.a0.a0, result.a0.a0);
-  for (int i = 0; i < 2; i++) {
-    Expect.approxEquals(a0.a1[i].a0, result.a1[i].a0);
-  }
-  Expect.approxEquals(a0.a2, result.a2);
-
-  calloc.free(a0Pointer);
-}
-
-final returnStructArgumentStructStruct32BytesHomogeneous =
-    ffiTestFunctions.lookupFunction<
-            StructStruct32BytesHomogeneousDouble2 Function(
-                StructStruct32BytesHomogeneousDouble2),
-            StructStruct32BytesHomogeneousDouble2 Function(
-                StructStruct32BytesHomogeneousDouble2)>(
-        "ReturnStructArgumentStructStruct32BytesHomogeneous");
-
-/// Return value in FPU registers on arm64.
-void testReturnStructArgumentStructStruct32BytesHomogeneous() {
-  final a0Pointer = calloc<StructStruct32BytesHomogeneousDouble2>();
-  final StructStruct32BytesHomogeneousDouble2 a0 = a0Pointer.ref;
-
-  a0.a0.a0 = -1.0;
-  a0.a1[0].a0 = 2.0;
-  a0.a1[1].a0 = -3.0;
-  a0.a2 = 4.0;
-
-  final result = returnStructArgumentStructStruct32BytesHomogeneous(a0);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0.a0.a0, result.a0.a0);
-  for (int i = 0; i < 2; i++) {
-    Expect.approxEquals(a0.a1[i].a0, result.a1[i].a0);
-  }
-  Expect.approxEquals(a0.a2, result.a2);
-
-  calloc.free(a0Pointer);
-}
-
-final returnStructArgumentStructStruct16BytesMixed3 =
-    ffiTestFunctions.lookupFunction<
-            StructStruct16BytesMixed3 Function(StructStruct16BytesMixed3),
-            StructStruct16BytesMixed3 Function(StructStruct16BytesMixed3)>(
-        "ReturnStructArgumentStructStruct16BytesMixed3");
-
-/// On x64 Linux, return value is split over FP and int registers.
-void testReturnStructArgumentStructStruct16BytesMixed3() {
-  final a0Pointer = calloc<StructStruct16BytesMixed3>();
-  final StructStruct16BytesMixed3 a0 = a0Pointer.ref;
-
-  a0.a0.a0 = -1.0;
-  a0.a1[0].a0 = 2.0;
-  a0.a1[0].a1 = -3;
-  a0.a1[0].a2 = 4;
-  a0.a2[0] = -5;
-  a0.a2[1] = 6;
-
-  final result = returnStructArgumentStructStruct16BytesMixed3(a0);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0.a0.a0, result.a0.a0);
-  for (int i = 0; i < 1; i++) {
-    Expect.approxEquals(a0.a1[i].a0, result.a1[i].a0);
-    Expect.equals(a0.a1[i].a1, result.a1[i].a1);
-    Expect.equals(a0.a1[i].a2, result.a1[i].a2);
-  }
-  for (int i = 0; i < 2; i++) {
-    Expect.equals(a0.a2[i], result.a2[i]);
-  }
-
-  calloc.free(a0Pointer);
-}
-
-final returnStructAlignmentInt16 = ffiTestFunctions.lookupFunction<
-    StructAlignmentInt16 Function(Int8, Int16, Int8),
-    StructAlignmentInt16 Function(int, int, int)>("ReturnStructAlignmentInt16");
-
-/// Test alignment and padding of 16 byte int within struct.
-void testReturnStructAlignmentInt16() {
-  int a0;
-  int a1;
-  int a2;
-
-  a0 = -1;
-  a1 = 2;
-  a2 = -3;
-
-  final result = returnStructAlignmentInt16(a0, a1, a2);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-}
-
-final returnStructAlignmentInt32 = ffiTestFunctions.lookupFunction<
-    StructAlignmentInt32 Function(Int8, Int32, Int8),
-    StructAlignmentInt32 Function(int, int, int)>("ReturnStructAlignmentInt32");
-
-/// Test alignment and padding of 32 byte int within struct.
-void testReturnStructAlignmentInt32() {
-  int a0;
-  int a1;
-  int a2;
-
-  a0 = -1;
-  a1 = 2;
-  a2 = -3;
-
-  final result = returnStructAlignmentInt32(a0, a1, a2);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-}
-
-final returnStructAlignmentInt64 = ffiTestFunctions.lookupFunction<
-    StructAlignmentInt64 Function(Int8, Int64, Int8),
-    StructAlignmentInt64 Function(int, int, int)>("ReturnStructAlignmentInt64");
-
-/// Test alignment and padding of 64 byte int within struct.
-void testReturnStructAlignmentInt64() {
-  int a0;
-  int a1;
-  int a2;
-
-  a0 = -1;
-  a1 = 2;
-  a2 = -3;
-
-  final result = returnStructAlignmentInt64(a0, a1, a2);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-}
-
-final returnStruct8BytesNestedInt = ffiTestFunctions.lookupFunction<
-    Struct8BytesNestedInt Function(
-        Struct4BytesHomogeneousInt16, Struct4BytesHomogeneousInt16),
-    Struct8BytesNestedInt Function(Struct4BytesHomogeneousInt16,
-        Struct4BytesHomogeneousInt16)>("ReturnStruct8BytesNestedInt");
-
-/// Simple nested struct.
-void testReturnStruct8BytesNestedInt() {
-  final a0Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a1 = a1Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a1.a0 = -3;
-  a1.a1 = 4;
-
-  final result = returnStruct8BytesNestedInt(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(a0.a0, result.a0.a0);
-  Expect.equals(a0.a1, result.a0.a1);
-  Expect.equals(a1.a0, result.a1.a0);
-  Expect.equals(a1.a1, result.a1.a1);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-}
-
-final returnStruct8BytesNestedFloat = ffiTestFunctions.lookupFunction<
-    Struct8BytesNestedFloat Function(Struct4BytesFloat, Struct4BytesFloat),
-    Struct8BytesNestedFloat Function(
-        Struct4BytesFloat, Struct4BytesFloat)>("ReturnStruct8BytesNestedFloat");
-
-/// Simple nested struct with floats.
-void testReturnStruct8BytesNestedFloat() {
-  final a0Pointer = calloc<Struct4BytesFloat>();
-  final Struct4BytesFloat a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct4BytesFloat>();
-  final Struct4BytesFloat a1 = a1Pointer.ref;
-
-  a0.a0 = -1.0;
-  a1.a0 = 2.0;
-
-  final result = returnStruct8BytesNestedFloat(a0, a1);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0.a0, result.a0.a0);
-  Expect.approxEquals(a1.a0, result.a1.a0);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-}
-
-final returnStruct8BytesNestedFloat2 = ffiTestFunctions.lookupFunction<
-    Struct8BytesNestedFloat2 Function(Struct4BytesFloat, Float),
-    Struct8BytesNestedFloat2 Function(
-        Struct4BytesFloat, double)>("ReturnStruct8BytesNestedFloat2");
-
-/// The nesting is irregular, testing homogenous float rules on arm and arm64,
-/// and the fpu register usage on x64.
-void testReturnStruct8BytesNestedFloat2() {
-  final a0Pointer = calloc<Struct4BytesFloat>();
-  final Struct4BytesFloat a0 = a0Pointer.ref;
-  double a1;
-
-  a0.a0 = -1.0;
-  a1 = 2.0;
-
-  final result = returnStruct8BytesNestedFloat2(a0, a1);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0.a0, result.a0.a0);
-  Expect.approxEquals(a1, result.a1);
-
-  calloc.free(a0Pointer);
-}
-
-final returnStruct8BytesNestedMixed = ffiTestFunctions.lookupFunction<
-    Struct8BytesNestedMixed Function(
-        Struct4BytesHomogeneousInt16, Struct4BytesFloat),
-    Struct8BytesNestedMixed Function(Struct4BytesHomogeneousInt16,
-        Struct4BytesFloat)>("ReturnStruct8BytesNestedMixed");
-
-/// Simple nested struct with mixed members.
-void testReturnStruct8BytesNestedMixed() {
-  final a0Pointer = calloc<Struct4BytesHomogeneousInt16>();
-  final Struct4BytesHomogeneousInt16 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct4BytesFloat>();
-  final Struct4BytesFloat a1 = a1Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a1.a0 = -3.0;
-
-  final result = returnStruct8BytesNestedMixed(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(a0.a0, result.a0.a0);
-  Expect.equals(a0.a1, result.a0.a1);
-  Expect.approxEquals(a1.a0, result.a1.a0);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-}
-
-final returnStruct16BytesNestedInt = ffiTestFunctions.lookupFunction<
-    Struct16BytesNestedInt Function(
-        Struct8BytesNestedInt, Struct8BytesNestedInt),
-    Struct16BytesNestedInt Function(Struct8BytesNestedInt,
-        Struct8BytesNestedInt)>("ReturnStruct16BytesNestedInt");
-
-/// Deeper nested struct to test recursive member access.
-void testReturnStruct16BytesNestedInt() {
-  final a0Pointer = calloc<Struct8BytesNestedInt>();
-  final Struct8BytesNestedInt a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct8BytesNestedInt>();
-  final Struct8BytesNestedInt a1 = a1Pointer.ref;
-
-  a0.a0.a0 = -1;
-  a0.a0.a1 = 2;
-  a0.a1.a0 = -3;
-  a0.a1.a1 = 4;
-  a1.a0.a0 = -5;
-  a1.a0.a1 = 6;
-  a1.a1.a0 = -7;
-  a1.a1.a1 = 8;
-
-  final result = returnStruct16BytesNestedInt(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(a0.a0.a0, result.a0.a0.a0);
-  Expect.equals(a0.a0.a1, result.a0.a0.a1);
-  Expect.equals(a0.a1.a0, result.a0.a1.a0);
-  Expect.equals(a0.a1.a1, result.a0.a1.a1);
-  Expect.equals(a1.a0.a0, result.a1.a0.a0);
-  Expect.equals(a1.a0.a1, result.a1.a0.a1);
-  Expect.equals(a1.a1.a0, result.a1.a1.a0);
-  Expect.equals(a1.a1.a1, result.a1.a1.a1);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-}
-
-final returnStruct32BytesNestedInt = ffiTestFunctions.lookupFunction<
-    Struct32BytesNestedInt Function(
-        Struct16BytesNestedInt, Struct16BytesNestedInt),
-    Struct32BytesNestedInt Function(Struct16BytesNestedInt,
-        Struct16BytesNestedInt)>("ReturnStruct32BytesNestedInt");
-
-/// Even deeper nested struct to test recursive member access.
-void testReturnStruct32BytesNestedInt() {
-  final a0Pointer = calloc<Struct16BytesNestedInt>();
-  final Struct16BytesNestedInt a0 = a0Pointer.ref;
-  final a1Pointer = calloc<Struct16BytesNestedInt>();
-  final Struct16BytesNestedInt a1 = a1Pointer.ref;
-
-  a0.a0.a0.a0 = -1;
-  a0.a0.a0.a1 = 2;
-  a0.a0.a1.a0 = -3;
-  a0.a0.a1.a1 = 4;
-  a0.a1.a0.a0 = -5;
-  a0.a1.a0.a1 = 6;
-  a0.a1.a1.a0 = -7;
-  a0.a1.a1.a1 = 8;
-  a1.a0.a0.a0 = -9;
-  a1.a0.a0.a1 = 10;
-  a1.a0.a1.a0 = -11;
-  a1.a0.a1.a1 = 12;
-  a1.a1.a0.a0 = -13;
-  a1.a1.a0.a1 = 14;
-  a1.a1.a1.a0 = -15;
-  a1.a1.a1.a1 = 16;
-
-  final result = returnStruct32BytesNestedInt(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(a0.a0.a0.a0, result.a0.a0.a0.a0);
-  Expect.equals(a0.a0.a0.a1, result.a0.a0.a0.a1);
-  Expect.equals(a0.a0.a1.a0, result.a0.a0.a1.a0);
-  Expect.equals(a0.a0.a1.a1, result.a0.a0.a1.a1);
-  Expect.equals(a0.a1.a0.a0, result.a0.a1.a0.a0);
-  Expect.equals(a0.a1.a0.a1, result.a0.a1.a0.a1);
-  Expect.equals(a0.a1.a1.a0, result.a0.a1.a1.a0);
-  Expect.equals(a0.a1.a1.a1, result.a0.a1.a1.a1);
-  Expect.equals(a1.a0.a0.a0, result.a1.a0.a0.a0);
-  Expect.equals(a1.a0.a0.a1, result.a1.a0.a0.a1);
-  Expect.equals(a1.a0.a1.a0, result.a1.a0.a1.a0);
-  Expect.equals(a1.a0.a1.a1, result.a1.a0.a1.a1);
-  Expect.equals(a1.a1.a0.a0, result.a1.a1.a0.a0);
-  Expect.equals(a1.a1.a0.a1, result.a1.a1.a0.a1);
-  Expect.equals(a1.a1.a1.a0, result.a1.a1.a1.a0);
-  Expect.equals(a1.a1.a1.a1, result.a1.a1.a1.a1);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-}
-
-final returnStructNestedIntStructAlignmentInt16 =
-    ffiTestFunctions.lookupFunction<
-        StructNestedIntStructAlignmentInt16 Function(
-            StructAlignmentInt16, StructAlignmentInt16),
-        StructNestedIntStructAlignmentInt16 Function(StructAlignmentInt16,
-            StructAlignmentInt16)>("ReturnStructNestedIntStructAlignmentInt16");
-
-/// Test alignment and padding of nested struct with 16 byte int.
-void testReturnStructNestedIntStructAlignmentInt16() {
-  final a0Pointer = calloc<StructAlignmentInt16>();
-  final StructAlignmentInt16 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<StructAlignmentInt16>();
-  final StructAlignmentInt16 a1 = a1Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a0.a2 = -3;
-  a1.a0 = 4;
-  a1.a1 = -5;
-  a1.a2 = 6;
-
-  final result = returnStructNestedIntStructAlignmentInt16(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(a0.a0, result.a0.a0);
-  Expect.equals(a0.a1, result.a0.a1);
-  Expect.equals(a0.a2, result.a0.a2);
-  Expect.equals(a1.a0, result.a1.a0);
-  Expect.equals(a1.a1, result.a1.a1);
-  Expect.equals(a1.a2, result.a1.a2);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-}
-
-final returnStructNestedIntStructAlignmentInt32 =
-    ffiTestFunctions.lookupFunction<
-        StructNestedIntStructAlignmentInt32 Function(
-            StructAlignmentInt32, StructAlignmentInt32),
-        StructNestedIntStructAlignmentInt32 Function(StructAlignmentInt32,
-            StructAlignmentInt32)>("ReturnStructNestedIntStructAlignmentInt32");
-
-/// Test alignment and padding of nested struct with 32 byte int.
-void testReturnStructNestedIntStructAlignmentInt32() {
-  final a0Pointer = calloc<StructAlignmentInt32>();
-  final StructAlignmentInt32 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<StructAlignmentInt32>();
-  final StructAlignmentInt32 a1 = a1Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a0.a2 = -3;
-  a1.a0 = 4;
-  a1.a1 = -5;
-  a1.a2 = 6;
-
-  final result = returnStructNestedIntStructAlignmentInt32(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(a0.a0, result.a0.a0);
-  Expect.equals(a0.a1, result.a0.a1);
-  Expect.equals(a0.a2, result.a0.a2);
-  Expect.equals(a1.a0, result.a1.a0);
-  Expect.equals(a1.a1, result.a1.a1);
-  Expect.equals(a1.a2, result.a1.a2);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-}
-
-final returnStructNestedIntStructAlignmentInt64 =
-    ffiTestFunctions.lookupFunction<
-        StructNestedIntStructAlignmentInt64 Function(
-            StructAlignmentInt64, StructAlignmentInt64),
-        StructNestedIntStructAlignmentInt64 Function(StructAlignmentInt64,
-            StructAlignmentInt64)>("ReturnStructNestedIntStructAlignmentInt64");
-
-/// Test alignment and padding of nested struct with 64 byte int.
-void testReturnStructNestedIntStructAlignmentInt64() {
-  final a0Pointer = calloc<StructAlignmentInt64>();
-  final StructAlignmentInt64 a0 = a0Pointer.ref;
-  final a1Pointer = calloc<StructAlignmentInt64>();
-  final StructAlignmentInt64 a1 = a1Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a0.a2 = -3;
-  a1.a0 = 4;
-  a1.a1 = -5;
-  a1.a2 = 6;
-
-  final result = returnStructNestedIntStructAlignmentInt64(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(a0.a0, result.a0.a0);
-  Expect.equals(a0.a1, result.a0.a1);
-  Expect.equals(a0.a2, result.a0.a2);
-  Expect.equals(a1.a0, result.a1.a0);
-  Expect.equals(a1.a1, result.a1.a1);
-  Expect.equals(a1.a2, result.a1.a2);
-
-  calloc.free(a0Pointer);
-  calloc.free(a1Pointer);
-}
-
-final returnStructNestedIrregularEvenBigger = ffiTestFunctions.lookupFunction<
-    StructNestedIrregularEvenBigger Function(Uint64,
-        StructNestedIrregularBigger, StructNestedIrregularBigger, Double),
-    StructNestedIrregularEvenBigger Function(
-        int,
-        StructNestedIrregularBigger,
-        StructNestedIrregularBigger,
-        double)>("ReturnStructNestedIrregularEvenBigger");
-
-/// Return big irregular struct as smoke test.
-void testReturnStructNestedIrregularEvenBigger() {
-  int a0;
-  final a1Pointer = calloc<StructNestedIrregularBigger>();
-  final StructNestedIrregularBigger a1 = a1Pointer.ref;
-  final a2Pointer = calloc<StructNestedIrregularBigger>();
-  final StructNestedIrregularBigger a2 = a2Pointer.ref;
-  double a3;
-
-  a0 = 1;
-  a1.a0.a0 = 2;
-  a1.a0.a1.a0.a0 = -3;
-  a1.a0.a1.a0.a1 = 4;
-  a1.a0.a1.a1.a0 = -5.0;
-  a1.a0.a2 = 6;
-  a1.a0.a3.a0.a0 = -7.0;
-  a1.a0.a3.a1 = 8.0;
-  a1.a0.a4 = 9;
-  a1.a0.a5.a0.a0 = 10.0;
-  a1.a0.a5.a1.a0 = -11.0;
-  a1.a0.a6 = 12;
-  a1.a1.a0.a0 = -13;
-  a1.a1.a0.a1 = 14;
-  a1.a1.a1.a0 = -15.0;
-  a1.a2 = 16.0;
-  a1.a3 = -17.0;
-  a2.a0.a0 = 18;
-  a2.a0.a1.a0.a0 = -19;
-  a2.a0.a1.a0.a1 = 20;
-  a2.a0.a1.a1.a0 = -21.0;
-  a2.a0.a2 = 22;
-  a2.a0.a3.a0.a0 = -23.0;
-  a2.a0.a3.a1 = 24.0;
-  a2.a0.a4 = 25;
-  a2.a0.a5.a0.a0 = 26.0;
-  a2.a0.a5.a1.a0 = -27.0;
-  a2.a0.a6 = 28;
-  a2.a1.a0.a0 = -29;
-  a2.a1.a0.a1 = 30;
-  a2.a1.a1.a0 = -31.0;
-  a2.a2 = 32.0;
-  a2.a3 = -33.0;
-  a3 = 34.0;
-
-  final result = returnStructNestedIrregularEvenBigger(a0, a1, a2, a3);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1.a0.a0, result.a1.a0.a0);
-  Expect.equals(a1.a0.a1.a0.a0, result.a1.a0.a1.a0.a0);
-  Expect.equals(a1.a0.a1.a0.a1, result.a1.a0.a1.a0.a1);
-  Expect.approxEquals(a1.a0.a1.a1.a0, result.a1.a0.a1.a1.a0);
-  Expect.equals(a1.a0.a2, result.a1.a0.a2);
-  Expect.approxEquals(a1.a0.a3.a0.a0, result.a1.a0.a3.a0.a0);
-  Expect.approxEquals(a1.a0.a3.a1, result.a1.a0.a3.a1);
-  Expect.equals(a1.a0.a4, result.a1.a0.a4);
-  Expect.approxEquals(a1.a0.a5.a0.a0, result.a1.a0.a5.a0.a0);
-  Expect.approxEquals(a1.a0.a5.a1.a0, result.a1.a0.a5.a1.a0);
-  Expect.equals(a1.a0.a6, result.a1.a0.a6);
-  Expect.equals(a1.a1.a0.a0, result.a1.a1.a0.a0);
-  Expect.equals(a1.a1.a0.a1, result.a1.a1.a0.a1);
-  Expect.approxEquals(a1.a1.a1.a0, result.a1.a1.a1.a0);
-  Expect.approxEquals(a1.a2, result.a1.a2);
-  Expect.approxEquals(a1.a3, result.a1.a3);
-  Expect.equals(a2.a0.a0, result.a2.a0.a0);
-  Expect.equals(a2.a0.a1.a0.a0, result.a2.a0.a1.a0.a0);
-  Expect.equals(a2.a0.a1.a0.a1, result.a2.a0.a1.a0.a1);
-  Expect.approxEquals(a2.a0.a1.a1.a0, result.a2.a0.a1.a1.a0);
-  Expect.equals(a2.a0.a2, result.a2.a0.a2);
-  Expect.approxEquals(a2.a0.a3.a0.a0, result.a2.a0.a3.a0.a0);
-  Expect.approxEquals(a2.a0.a3.a1, result.a2.a0.a3.a1);
-  Expect.equals(a2.a0.a4, result.a2.a0.a4);
-  Expect.approxEquals(a2.a0.a5.a0.a0, result.a2.a0.a5.a0.a0);
-  Expect.approxEquals(a2.a0.a5.a1.a0, result.a2.a0.a5.a1.a0);
-  Expect.equals(a2.a0.a6, result.a2.a0.a6);
-  Expect.equals(a2.a1.a0.a0, result.a2.a1.a0.a0);
-  Expect.equals(a2.a1.a0.a1, result.a2.a1.a0.a1);
-  Expect.approxEquals(a2.a1.a1.a0, result.a2.a1.a1.a0);
-  Expect.approxEquals(a2.a2, result.a2.a2);
-  Expect.approxEquals(a2.a3, result.a2.a3);
-  Expect.approxEquals(a3, result.a3);
-
-  calloc.free(a1Pointer);
-  calloc.free(a2Pointer);
-}
diff --git a/tests/ffi_2/function_structs_by_value_generated_ret_leaf_test.dart b/tests/ffi_2/function_structs_by_value_generated_ret_leaf_test.dart
deleted file mode 100644
index 503c827dc20..00000000000
--- a/tests/ffi_2/function_structs_by_value_generated_ret_leaf_test.dart
+++ /dev/null
@@ -1,1643 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// This file has been automatically generated. Please do not edit it manually.
-// Generated by tests/ffi/generator/structs_by_value_tests_generator.dart.
-//
-// SharedObjects=ffi_test_functions
-// VMOptions=
-// VMOptions=--deterministic --optimization-counter-threshold=90
-// VMOptions=--use-slow-path
-// VMOptions=--use-slow-path --stacktrace-every=100
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
-
-import 'dylib_utils.dart';
-
-// Reuse the compound classes.
-import 'function_structs_by_value_generated_compounds.dart';
-
-final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-void main() {
-  for (int i = 0; i < 100; ++i) {
-    testReturnStruct1ByteIntLeaf();
-    testReturnStruct3BytesHomogeneousUint8Leaf();
-    testReturnStruct3BytesInt2ByteAlignedLeaf();
-    testReturnStruct4BytesHomogeneousInt16Leaf();
-    testReturnStruct7BytesHomogeneousUint8Leaf();
-    testReturnStruct7BytesInt4ByteAlignedLeaf();
-    testReturnStruct8BytesIntLeaf();
-    testReturnStruct8BytesHomogeneousFloatLeaf();
-    testReturnStruct8BytesMixedLeaf();
-    testReturnStruct9BytesHomogeneousUint8Leaf();
-    testReturnStruct9BytesInt4Or8ByteAlignedLeaf();
-    testReturnStruct12BytesHomogeneousFloatLeaf();
-    testReturnStruct16BytesHomogeneousFloatLeaf();
-    testReturnStruct16BytesMixedLeaf();
-    testReturnStruct16BytesMixed2Leaf();
-    testReturnStruct17BytesIntLeaf();
-    testReturnStruct19BytesHomogeneousUint8Leaf();
-    testReturnStruct20BytesHomogeneousInt32Leaf();
-    testReturnStruct20BytesHomogeneousFloatLeaf();
-    testReturnStruct32BytesHomogeneousDoubleLeaf();
-    testReturnStruct40BytesHomogeneousDoubleLeaf();
-    testReturnStruct1024BytesHomogeneousUint64Leaf();
-    testReturnStruct3BytesPackedIntLeaf();
-    testReturnStruct8BytesPackedIntLeaf();
-    testReturnStruct9BytesPackedMixedLeaf();
-    testReturnUnion4BytesMixedLeaf();
-    testReturnUnion8BytesNestedFloatLeaf();
-    testReturnUnion9BytesNestedIntLeaf();
-    testReturnUnion16BytesNestedFloatLeaf();
-  }
-}
-
-final returnStruct1ByteIntLeaf = ffiTestFunctions.lookupFunction<
-    Struct1ByteInt Function(Int8),
-    Struct1ByteInt Function(int)>("ReturnStruct1ByteInt", isLeaf: true);
-
-/// Smallest struct with data.
-void testReturnStruct1ByteIntLeaf() {
-  int a0;
-
-  a0 = -1;
-
-  final result = returnStruct1ByteIntLeaf(a0);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-}
-
-final returnStruct3BytesHomogeneousUint8Leaf = ffiTestFunctions.lookupFunction<
-    Struct3BytesHomogeneousUint8 Function(Uint8, Uint8, Uint8),
-    Struct3BytesHomogeneousUint8 Function(
-        int, int, int)>("ReturnStruct3BytesHomogeneousUint8", isLeaf: true);
-
-/// Smaller than word size return value on all architectures.
-void testReturnStruct3BytesHomogeneousUint8Leaf() {
-  int a0;
-  int a1;
-  int a2;
-
-  a0 = 1;
-  a1 = 2;
-  a2 = 3;
-
-  final result = returnStruct3BytesHomogeneousUint8Leaf(a0, a1, a2);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-}
-
-final returnStruct3BytesInt2ByteAlignedLeaf = ffiTestFunctions.lookupFunction<
-    Struct3BytesInt2ByteAligned Function(Int16, Int8),
-    Struct3BytesInt2ByteAligned Function(
-        int, int)>("ReturnStruct3BytesInt2ByteAligned", isLeaf: true);
-
-/// Smaller than word size return value on all architectures.
-/// With alignment rules taken into account size is 4 bytes.
-void testReturnStruct3BytesInt2ByteAlignedLeaf() {
-  int a0;
-  int a1;
-
-  a0 = -1;
-  a1 = 2;
-
-  final result = returnStruct3BytesInt2ByteAlignedLeaf(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-}
-
-final returnStruct4BytesHomogeneousInt16Leaf = ffiTestFunctions.lookupFunction<
-    Struct4BytesHomogeneousInt16 Function(Int16, Int16),
-    Struct4BytesHomogeneousInt16 Function(
-        int, int)>("ReturnStruct4BytesHomogeneousInt16", isLeaf: true);
-
-/// Word size return value on 32 bit architectures..
-void testReturnStruct4BytesHomogeneousInt16Leaf() {
-  int a0;
-  int a1;
-
-  a0 = -1;
-  a1 = 2;
-
-  final result = returnStruct4BytesHomogeneousInt16Leaf(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-}
-
-final returnStruct7BytesHomogeneousUint8Leaf = ffiTestFunctions.lookupFunction<
-    Struct7BytesHomogeneousUint8 Function(
-        Uint8, Uint8, Uint8, Uint8, Uint8, Uint8, Uint8),
-    Struct7BytesHomogeneousUint8 Function(int, int, int, int, int, int,
-        int)>("ReturnStruct7BytesHomogeneousUint8", isLeaf: true);
-
-/// Non-wordsize return value.
-void testReturnStruct7BytesHomogeneousUint8Leaf() {
-  int a0;
-  int a1;
-  int a2;
-  int a3;
-  int a4;
-  int a5;
-  int a6;
-
-  a0 = 1;
-  a1 = 2;
-  a2 = 3;
-  a3 = 4;
-  a4 = 5;
-  a5 = 6;
-  a6 = 7;
-
-  final result =
-      returnStruct7BytesHomogeneousUint8Leaf(a0, a1, a2, a3, a4, a5, a6);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-  Expect.equals(a3, result.a3);
-  Expect.equals(a4, result.a4);
-  Expect.equals(a5, result.a5);
-  Expect.equals(a6, result.a6);
-}
-
-final returnStruct7BytesInt4ByteAlignedLeaf = ffiTestFunctions.lookupFunction<
-    Struct7BytesInt4ByteAligned Function(Int32, Int16, Int8),
-    Struct7BytesInt4ByteAligned Function(
-        int, int, int)>("ReturnStruct7BytesInt4ByteAligned", isLeaf: true);
-
-/// Non-wordsize return value.
-/// With alignment rules taken into account size is 8 bytes.
-void testReturnStruct7BytesInt4ByteAlignedLeaf() {
-  int a0;
-  int a1;
-  int a2;
-
-  a0 = -1;
-  a1 = 2;
-  a2 = -3;
-
-  final result = returnStruct7BytesInt4ByteAlignedLeaf(a0, a1, a2);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-}
-
-final returnStruct8BytesIntLeaf = ffiTestFunctions.lookupFunction<
-    Struct8BytesInt Function(Int16, Int16, Int32),
-    Struct8BytesInt Function(
-        int, int, int)>("ReturnStruct8BytesInt", isLeaf: true);
-
-/// Return value in integer registers on many architectures.
-void testReturnStruct8BytesIntLeaf() {
-  int a0;
-  int a1;
-  int a2;
-
-  a0 = -1;
-  a1 = 2;
-  a2 = -3;
-
-  final result = returnStruct8BytesIntLeaf(a0, a1, a2);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-}
-
-final returnStruct8BytesHomogeneousFloatLeaf = ffiTestFunctions.lookupFunction<
-    Struct8BytesHomogeneousFloat Function(Float, Float),
-    Struct8BytesHomogeneousFloat Function(
-        double, double)>("ReturnStruct8BytesHomogeneousFloat", isLeaf: true);
-
-/// Return value in FP registers on many architectures.
-void testReturnStruct8BytesHomogeneousFloatLeaf() {
-  double a0;
-  double a1;
-
-  a0 = -1.0;
-  a1 = 2.0;
-
-  final result = returnStruct8BytesHomogeneousFloatLeaf(a0, a1);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0, result.a0);
-  Expect.approxEquals(a1, result.a1);
-}
-
-final returnStruct8BytesMixedLeaf = ffiTestFunctions.lookupFunction<
-    Struct8BytesMixed Function(Float, Int16, Int16),
-    Struct8BytesMixed Function(
-        double, int, int)>("ReturnStruct8BytesMixed", isLeaf: true);
-
-/// Return value split over FP and integer register in x64.
-void testReturnStruct8BytesMixedLeaf() {
-  double a0;
-  int a1;
-  int a2;
-
-  a0 = -1.0;
-  a1 = 2;
-  a2 = -3;
-
-  final result = returnStruct8BytesMixedLeaf(a0, a1, a2);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-}
-
-final returnStruct9BytesHomogeneousUint8Leaf = ffiTestFunctions.lookupFunction<
-    Struct9BytesHomogeneousUint8 Function(
-        Uint8, Uint8, Uint8, Uint8, Uint8, Uint8, Uint8, Uint8, Uint8),
-    Struct9BytesHomogeneousUint8 Function(int, int, int, int, int, int, int,
-        int, int)>("ReturnStruct9BytesHomogeneousUint8", isLeaf: true);
-
-/// The minimum alignment of this struct is only 1 byte based on its fields.
-/// Test that the memory backing these structs is the right size and that
-/// dart:ffi trampolines do not write outside this size.
-void testReturnStruct9BytesHomogeneousUint8Leaf() {
-  int a0;
-  int a1;
-  int a2;
-  int a3;
-  int a4;
-  int a5;
-  int a6;
-  int a7;
-  int a8;
-
-  a0 = 1;
-  a1 = 2;
-  a2 = 3;
-  a3 = 4;
-  a4 = 5;
-  a5 = 6;
-  a6 = 7;
-  a7 = 8;
-  a8 = 9;
-
-  final result = returnStruct9BytesHomogeneousUint8Leaf(
-      a0, a1, a2, a3, a4, a5, a6, a7, a8);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-  Expect.equals(a3, result.a3);
-  Expect.equals(a4, result.a4);
-  Expect.equals(a5, result.a5);
-  Expect.equals(a6, result.a6);
-  Expect.equals(a7, result.a7);
-  Expect.equals(a8, result.a8);
-}
-
-final returnStruct9BytesInt4Or8ByteAlignedLeaf =
-    ffiTestFunctions.lookupFunction<
-        Struct9BytesInt4Or8ByteAligned Function(Int64, Int8),
-        Struct9BytesInt4Or8ByteAligned Function(
-            int, int)>("ReturnStruct9BytesInt4Or8ByteAligned", isLeaf: true);
-
-/// Return value in two integer registers on x64.
-/// With alignment rules taken into account size is 12 or 16 bytes.
-void testReturnStruct9BytesInt4Or8ByteAlignedLeaf() {
-  int a0;
-  int a1;
-
-  a0 = -1;
-  a1 = 2;
-
-  final result = returnStruct9BytesInt4Or8ByteAlignedLeaf(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-}
-
-final returnStruct12BytesHomogeneousFloatLeaf = ffiTestFunctions.lookupFunction<
-    Struct12BytesHomogeneousFloat Function(Float, Float, Float),
-    Struct12BytesHomogeneousFloat Function(double, double,
-        double)>("ReturnStruct12BytesHomogeneousFloat", isLeaf: true);
-
-/// Return value in FPU registers, but does not use all registers on arm hardfp
-/// and arm64.
-void testReturnStruct12BytesHomogeneousFloatLeaf() {
-  double a0;
-  double a1;
-  double a2;
-
-  a0 = -1.0;
-  a1 = 2.0;
-  a2 = -3.0;
-
-  final result = returnStruct12BytesHomogeneousFloatLeaf(a0, a1, a2);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0, result.a0);
-  Expect.approxEquals(a1, result.a1);
-  Expect.approxEquals(a2, result.a2);
-}
-
-final returnStruct16BytesHomogeneousFloatLeaf = ffiTestFunctions.lookupFunction<
-    Struct16BytesHomogeneousFloat Function(Float, Float, Float, Float),
-    Struct16BytesHomogeneousFloat Function(double, double, double,
-        double)>("ReturnStruct16BytesHomogeneousFloat", isLeaf: true);
-
-/// Return value in FPU registers on arm hardfp and arm64.
-void testReturnStruct16BytesHomogeneousFloatLeaf() {
-  double a0;
-  double a1;
-  double a2;
-  double a3;
-
-  a0 = -1.0;
-  a1 = 2.0;
-  a2 = -3.0;
-  a3 = 4.0;
-
-  final result = returnStruct16BytesHomogeneousFloatLeaf(a0, a1, a2, a3);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0, result.a0);
-  Expect.approxEquals(a1, result.a1);
-  Expect.approxEquals(a2, result.a2);
-  Expect.approxEquals(a3, result.a3);
-}
-
-final returnStruct16BytesMixedLeaf = ffiTestFunctions.lookupFunction<
-    Struct16BytesMixed Function(Double, Int64),
-    Struct16BytesMixed Function(
-        double, int)>("ReturnStruct16BytesMixed", isLeaf: true);
-
-/// Return value split over FP and integer register in x64.
-void testReturnStruct16BytesMixedLeaf() {
-  double a0;
-  int a1;
-
-  a0 = -1.0;
-  a1 = 2;
-
-  final result = returnStruct16BytesMixedLeaf(a0, a1);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-}
-
-final returnStruct16BytesMixed2Leaf = ffiTestFunctions.lookupFunction<
-    Struct16BytesMixed2 Function(Float, Float, Float, Int32),
-    Struct16BytesMixed2 Function(double, double, double,
-        int)>("ReturnStruct16BytesMixed2", isLeaf: true);
-
-/// Return value split over FP and integer register in x64.
-/// The integer register contains half float half int.
-void testReturnStruct16BytesMixed2Leaf() {
-  double a0;
-  double a1;
-  double a2;
-  int a3;
-
-  a0 = -1.0;
-  a1 = 2.0;
-  a2 = -3.0;
-  a3 = 4;
-
-  final result = returnStruct16BytesMixed2Leaf(a0, a1, a2, a3);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0, result.a0);
-  Expect.approxEquals(a1, result.a1);
-  Expect.approxEquals(a2, result.a2);
-  Expect.equals(a3, result.a3);
-}
-
-final returnStruct17BytesIntLeaf = ffiTestFunctions.lookupFunction<
-    Struct17BytesInt Function(Int64, Int64, Int8),
-    Struct17BytesInt Function(
-        int, int, int)>("ReturnStruct17BytesInt", isLeaf: true);
-
-/// Return value returned in preallocated space passed by pointer on most ABIs.
-/// Is non word size on purpose, to test that structs are rounded up to word size
-/// on all ABIs.
-void testReturnStruct17BytesIntLeaf() {
-  int a0;
-  int a1;
-  int a2;
-
-  a0 = -1;
-  a1 = 2;
-  a2 = -3;
-
-  final result = returnStruct17BytesIntLeaf(a0, a1, a2);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-}
-
-final returnStruct19BytesHomogeneousUint8Leaf = ffiTestFunctions.lookupFunction<
-    Struct19BytesHomogeneousUint8 Function(
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8),
-    Struct19BytesHomogeneousUint8 Function(
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int)>("ReturnStruct19BytesHomogeneousUint8", isLeaf: true);
-
-/// The minimum alignment of this struct is only 1 byte based on its fields.
-/// Test that the memory backing these structs is the right size and that
-/// dart:ffi trampolines do not write outside this size.
-void testReturnStruct19BytesHomogeneousUint8Leaf() {
-  int a0;
-  int a1;
-  int a2;
-  int a3;
-  int a4;
-  int a5;
-  int a6;
-  int a7;
-  int a8;
-  int a9;
-  int a10;
-  int a11;
-  int a12;
-  int a13;
-  int a14;
-  int a15;
-  int a16;
-  int a17;
-  int a18;
-
-  a0 = 1;
-  a1 = 2;
-  a2 = 3;
-  a3 = 4;
-  a4 = 5;
-  a5 = 6;
-  a6 = 7;
-  a7 = 8;
-  a8 = 9;
-  a9 = 10;
-  a10 = 11;
-  a11 = 12;
-  a12 = 13;
-  a13 = 14;
-  a14 = 15;
-  a15 = 16;
-  a16 = 17;
-  a17 = 18;
-  a18 = 19;
-
-  final result = returnStruct19BytesHomogeneousUint8Leaf(a0, a1, a2, a3, a4, a5,
-      a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-  Expect.equals(a3, result.a3);
-  Expect.equals(a4, result.a4);
-  Expect.equals(a5, result.a5);
-  Expect.equals(a6, result.a6);
-  Expect.equals(a7, result.a7);
-  Expect.equals(a8, result.a8);
-  Expect.equals(a9, result.a9);
-  Expect.equals(a10, result.a10);
-  Expect.equals(a11, result.a11);
-  Expect.equals(a12, result.a12);
-  Expect.equals(a13, result.a13);
-  Expect.equals(a14, result.a14);
-  Expect.equals(a15, result.a15);
-  Expect.equals(a16, result.a16);
-  Expect.equals(a17, result.a17);
-  Expect.equals(a18, result.a18);
-}
-
-final returnStruct20BytesHomogeneousInt32Leaf = ffiTestFunctions.lookupFunction<
-    Struct20BytesHomogeneousInt32 Function(Int32, Int32, Int32, Int32, Int32),
-    Struct20BytesHomogeneousInt32 Function(int, int, int, int,
-        int)>("ReturnStruct20BytesHomogeneousInt32", isLeaf: true);
-
-/// Return value too big to go in cpu registers on arm64.
-void testReturnStruct20BytesHomogeneousInt32Leaf() {
-  int a0;
-  int a1;
-  int a2;
-  int a3;
-  int a4;
-
-  a0 = -1;
-  a1 = 2;
-  a2 = -3;
-  a3 = 4;
-  a4 = -5;
-
-  final result = returnStruct20BytesHomogeneousInt32Leaf(a0, a1, a2, a3, a4);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-  Expect.equals(a3, result.a3);
-  Expect.equals(a4, result.a4);
-}
-
-final returnStruct20BytesHomogeneousFloatLeaf = ffiTestFunctions.lookupFunction<
-    Struct20BytesHomogeneousFloat Function(Float, Float, Float, Float, Float),
-    Struct20BytesHomogeneousFloat Function(double, double, double, double,
-        double)>("ReturnStruct20BytesHomogeneousFloat", isLeaf: true);
-
-/// Return value too big to go in FPU registers on x64, arm hardfp and arm64.
-void testReturnStruct20BytesHomogeneousFloatLeaf() {
-  double a0;
-  double a1;
-  double a2;
-  double a3;
-  double a4;
-
-  a0 = -1.0;
-  a1 = 2.0;
-  a2 = -3.0;
-  a3 = 4.0;
-  a4 = -5.0;
-
-  final result = returnStruct20BytesHomogeneousFloatLeaf(a0, a1, a2, a3, a4);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0, result.a0);
-  Expect.approxEquals(a1, result.a1);
-  Expect.approxEquals(a2, result.a2);
-  Expect.approxEquals(a3, result.a3);
-  Expect.approxEquals(a4, result.a4);
-}
-
-final returnStruct32BytesHomogeneousDoubleLeaf =
-    ffiTestFunctions.lookupFunction<
-        Struct32BytesHomogeneousDouble Function(Double, Double, Double, Double),
-        Struct32BytesHomogeneousDouble Function(double, double, double,
-            double)>("ReturnStruct32BytesHomogeneousDouble", isLeaf: true);
-
-/// Return value in FPU registers on arm64.
-void testReturnStruct32BytesHomogeneousDoubleLeaf() {
-  double a0;
-  double a1;
-  double a2;
-  double a3;
-
-  a0 = -1.0;
-  a1 = 2.0;
-  a2 = -3.0;
-  a3 = 4.0;
-
-  final result = returnStruct32BytesHomogeneousDoubleLeaf(a0, a1, a2, a3);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0, result.a0);
-  Expect.approxEquals(a1, result.a1);
-  Expect.approxEquals(a2, result.a2);
-  Expect.approxEquals(a3, result.a3);
-}
-
-final returnStruct40BytesHomogeneousDoubleLeaf =
-    ffiTestFunctions.lookupFunction<
-        Struct40BytesHomogeneousDouble Function(
-            Double, Double, Double, Double, Double),
-        Struct40BytesHomogeneousDouble Function(double, double, double, double,
-            double)>("ReturnStruct40BytesHomogeneousDouble", isLeaf: true);
-
-/// Return value too big to go in FPU registers on arm64.
-void testReturnStruct40BytesHomogeneousDoubleLeaf() {
-  double a0;
-  double a1;
-  double a2;
-  double a3;
-  double a4;
-
-  a0 = -1.0;
-  a1 = 2.0;
-  a2 = -3.0;
-  a3 = 4.0;
-  a4 = -5.0;
-
-  final result = returnStruct40BytesHomogeneousDoubleLeaf(a0, a1, a2, a3, a4);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0, result.a0);
-  Expect.approxEquals(a1, result.a1);
-  Expect.approxEquals(a2, result.a2);
-  Expect.approxEquals(a3, result.a3);
-  Expect.approxEquals(a4, result.a4);
-}
-
-final returnStruct1024BytesHomogeneousUint64Leaf =
-    ffiTestFunctions.lookupFunction<
-        Struct1024BytesHomogeneousUint64 Function(
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64,
-            Uint64),
-        Struct1024BytesHomogeneousUint64 Function(
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int,
-            int)>("ReturnStruct1024BytesHomogeneousUint64", isLeaf: true);
-
-/// Test 1kb struct.
-void testReturnStruct1024BytesHomogeneousUint64Leaf() {
-  int a0;
-  int a1;
-  int a2;
-  int a3;
-  int a4;
-  int a5;
-  int a6;
-  int a7;
-  int a8;
-  int a9;
-  int a10;
-  int a11;
-  int a12;
-  int a13;
-  int a14;
-  int a15;
-  int a16;
-  int a17;
-  int a18;
-  int a19;
-  int a20;
-  int a21;
-  int a22;
-  int a23;
-  int a24;
-  int a25;
-  int a26;
-  int a27;
-  int a28;
-  int a29;
-  int a30;
-  int a31;
-  int a32;
-  int a33;
-  int a34;
-  int a35;
-  int a36;
-  int a37;
-  int a38;
-  int a39;
-  int a40;
-  int a41;
-  int a42;
-  int a43;
-  int a44;
-  int a45;
-  int a46;
-  int a47;
-  int a48;
-  int a49;
-  int a50;
-  int a51;
-  int a52;
-  int a53;
-  int a54;
-  int a55;
-  int a56;
-  int a57;
-  int a58;
-  int a59;
-  int a60;
-  int a61;
-  int a62;
-  int a63;
-  int a64;
-  int a65;
-  int a66;
-  int a67;
-  int a68;
-  int a69;
-  int a70;
-  int a71;
-  int a72;
-  int a73;
-  int a74;
-  int a75;
-  int a76;
-  int a77;
-  int a78;
-  int a79;
-  int a80;
-  int a81;
-  int a82;
-  int a83;
-  int a84;
-  int a85;
-  int a86;
-  int a87;
-  int a88;
-  int a89;
-  int a90;
-  int a91;
-  int a92;
-  int a93;
-  int a94;
-  int a95;
-  int a96;
-  int a97;
-  int a98;
-  int a99;
-  int a100;
-  int a101;
-  int a102;
-  int a103;
-  int a104;
-  int a105;
-  int a106;
-  int a107;
-  int a108;
-  int a109;
-  int a110;
-  int a111;
-  int a112;
-  int a113;
-  int a114;
-  int a115;
-  int a116;
-  int a117;
-  int a118;
-  int a119;
-  int a120;
-  int a121;
-  int a122;
-  int a123;
-  int a124;
-  int a125;
-  int a126;
-  int a127;
-
-  a0 = 1;
-  a1 = 2;
-  a2 = 3;
-  a3 = 4;
-  a4 = 5;
-  a5 = 6;
-  a6 = 7;
-  a7 = 8;
-  a8 = 9;
-  a9 = 10;
-  a10 = 11;
-  a11 = 12;
-  a12 = 13;
-  a13 = 14;
-  a14 = 15;
-  a15 = 16;
-  a16 = 17;
-  a17 = 18;
-  a18 = 19;
-  a19 = 20;
-  a20 = 21;
-  a21 = 22;
-  a22 = 23;
-  a23 = 24;
-  a24 = 25;
-  a25 = 26;
-  a26 = 27;
-  a27 = 28;
-  a28 = 29;
-  a29 = 30;
-  a30 = 31;
-  a31 = 32;
-  a32 = 33;
-  a33 = 34;
-  a34 = 35;
-  a35 = 36;
-  a36 = 37;
-  a37 = 38;
-  a38 = 39;
-  a39 = 40;
-  a40 = 41;
-  a41 = 42;
-  a42 = 43;
-  a43 = 44;
-  a44 = 45;
-  a45 = 46;
-  a46 = 47;
-  a47 = 48;
-  a48 = 49;
-  a49 = 50;
-  a50 = 51;
-  a51 = 52;
-  a52 = 53;
-  a53 = 54;
-  a54 = 55;
-  a55 = 56;
-  a56 = 57;
-  a57 = 58;
-  a58 = 59;
-  a59 = 60;
-  a60 = 61;
-  a61 = 62;
-  a62 = 63;
-  a63 = 64;
-  a64 = 65;
-  a65 = 66;
-  a66 = 67;
-  a67 = 68;
-  a68 = 69;
-  a69 = 70;
-  a70 = 71;
-  a71 = 72;
-  a72 = 73;
-  a73 = 74;
-  a74 = 75;
-  a75 = 76;
-  a76 = 77;
-  a77 = 78;
-  a78 = 79;
-  a79 = 80;
-  a80 = 81;
-  a81 = 82;
-  a82 = 83;
-  a83 = 84;
-  a84 = 85;
-  a85 = 86;
-  a86 = 87;
-  a87 = 88;
-  a88 = 89;
-  a89 = 90;
-  a90 = 91;
-  a91 = 92;
-  a92 = 93;
-  a93 = 94;
-  a94 = 95;
-  a95 = 96;
-  a96 = 97;
-  a97 = 98;
-  a98 = 99;
-  a99 = 100;
-  a100 = 101;
-  a101 = 102;
-  a102 = 103;
-  a103 = 104;
-  a104 = 105;
-  a105 = 106;
-  a106 = 107;
-  a107 = 108;
-  a108 = 109;
-  a109 = 110;
-  a110 = 111;
-  a111 = 112;
-  a112 = 113;
-  a113 = 114;
-  a114 = 115;
-  a115 = 116;
-  a116 = 117;
-  a117 = 118;
-  a118 = 119;
-  a119 = 120;
-  a120 = 121;
-  a121 = 122;
-  a122 = 123;
-  a123 = 124;
-  a124 = 125;
-  a125 = 126;
-  a126 = 127;
-  a127 = 128;
-
-  final result = returnStruct1024BytesHomogeneousUint64Leaf(
-      a0,
-      a1,
-      a2,
-      a3,
-      a4,
-      a5,
-      a6,
-      a7,
-      a8,
-      a9,
-      a10,
-      a11,
-      a12,
-      a13,
-      a14,
-      a15,
-      a16,
-      a17,
-      a18,
-      a19,
-      a20,
-      a21,
-      a22,
-      a23,
-      a24,
-      a25,
-      a26,
-      a27,
-      a28,
-      a29,
-      a30,
-      a31,
-      a32,
-      a33,
-      a34,
-      a35,
-      a36,
-      a37,
-      a38,
-      a39,
-      a40,
-      a41,
-      a42,
-      a43,
-      a44,
-      a45,
-      a46,
-      a47,
-      a48,
-      a49,
-      a50,
-      a51,
-      a52,
-      a53,
-      a54,
-      a55,
-      a56,
-      a57,
-      a58,
-      a59,
-      a60,
-      a61,
-      a62,
-      a63,
-      a64,
-      a65,
-      a66,
-      a67,
-      a68,
-      a69,
-      a70,
-      a71,
-      a72,
-      a73,
-      a74,
-      a75,
-      a76,
-      a77,
-      a78,
-      a79,
-      a80,
-      a81,
-      a82,
-      a83,
-      a84,
-      a85,
-      a86,
-      a87,
-      a88,
-      a89,
-      a90,
-      a91,
-      a92,
-      a93,
-      a94,
-      a95,
-      a96,
-      a97,
-      a98,
-      a99,
-      a100,
-      a101,
-      a102,
-      a103,
-      a104,
-      a105,
-      a106,
-      a107,
-      a108,
-      a109,
-      a110,
-      a111,
-      a112,
-      a113,
-      a114,
-      a115,
-      a116,
-      a117,
-      a118,
-      a119,
-      a120,
-      a121,
-      a122,
-      a123,
-      a124,
-      a125,
-      a126,
-      a127);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-  Expect.equals(a3, result.a3);
-  Expect.equals(a4, result.a4);
-  Expect.equals(a5, result.a5);
-  Expect.equals(a6, result.a6);
-  Expect.equals(a7, result.a7);
-  Expect.equals(a8, result.a8);
-  Expect.equals(a9, result.a9);
-  Expect.equals(a10, result.a10);
-  Expect.equals(a11, result.a11);
-  Expect.equals(a12, result.a12);
-  Expect.equals(a13, result.a13);
-  Expect.equals(a14, result.a14);
-  Expect.equals(a15, result.a15);
-  Expect.equals(a16, result.a16);
-  Expect.equals(a17, result.a17);
-  Expect.equals(a18, result.a18);
-  Expect.equals(a19, result.a19);
-  Expect.equals(a20, result.a20);
-  Expect.equals(a21, result.a21);
-  Expect.equals(a22, result.a22);
-  Expect.equals(a23, result.a23);
-  Expect.equals(a24, result.a24);
-  Expect.equals(a25, result.a25);
-  Expect.equals(a26, result.a26);
-  Expect.equals(a27, result.a27);
-  Expect.equals(a28, result.a28);
-  Expect.equals(a29, result.a29);
-  Expect.equals(a30, result.a30);
-  Expect.equals(a31, result.a31);
-  Expect.equals(a32, result.a32);
-  Expect.equals(a33, result.a33);
-  Expect.equals(a34, result.a34);
-  Expect.equals(a35, result.a35);
-  Expect.equals(a36, result.a36);
-  Expect.equals(a37, result.a37);
-  Expect.equals(a38, result.a38);
-  Expect.equals(a39, result.a39);
-  Expect.equals(a40, result.a40);
-  Expect.equals(a41, result.a41);
-  Expect.equals(a42, result.a42);
-  Expect.equals(a43, result.a43);
-  Expect.equals(a44, result.a44);
-  Expect.equals(a45, result.a45);
-  Expect.equals(a46, result.a46);
-  Expect.equals(a47, result.a47);
-  Expect.equals(a48, result.a48);
-  Expect.equals(a49, result.a49);
-  Expect.equals(a50, result.a50);
-  Expect.equals(a51, result.a51);
-  Expect.equals(a52, result.a52);
-  Expect.equals(a53, result.a53);
-  Expect.equals(a54, result.a54);
-  Expect.equals(a55, result.a55);
-  Expect.equals(a56, result.a56);
-  Expect.equals(a57, result.a57);
-  Expect.equals(a58, result.a58);
-  Expect.equals(a59, result.a59);
-  Expect.equals(a60, result.a60);
-  Expect.equals(a61, result.a61);
-  Expect.equals(a62, result.a62);
-  Expect.equals(a63, result.a63);
-  Expect.equals(a64, result.a64);
-  Expect.equals(a65, result.a65);
-  Expect.equals(a66, result.a66);
-  Expect.equals(a67, result.a67);
-  Expect.equals(a68, result.a68);
-  Expect.equals(a69, result.a69);
-  Expect.equals(a70, result.a70);
-  Expect.equals(a71, result.a71);
-  Expect.equals(a72, result.a72);
-  Expect.equals(a73, result.a73);
-  Expect.equals(a74, result.a74);
-  Expect.equals(a75, result.a75);
-  Expect.equals(a76, result.a76);
-  Expect.equals(a77, result.a77);
-  Expect.equals(a78, result.a78);
-  Expect.equals(a79, result.a79);
-  Expect.equals(a80, result.a80);
-  Expect.equals(a81, result.a81);
-  Expect.equals(a82, result.a82);
-  Expect.equals(a83, result.a83);
-  Expect.equals(a84, result.a84);
-  Expect.equals(a85, result.a85);
-  Expect.equals(a86, result.a86);
-  Expect.equals(a87, result.a87);
-  Expect.equals(a88, result.a88);
-  Expect.equals(a89, result.a89);
-  Expect.equals(a90, result.a90);
-  Expect.equals(a91, result.a91);
-  Expect.equals(a92, result.a92);
-  Expect.equals(a93, result.a93);
-  Expect.equals(a94, result.a94);
-  Expect.equals(a95, result.a95);
-  Expect.equals(a96, result.a96);
-  Expect.equals(a97, result.a97);
-  Expect.equals(a98, result.a98);
-  Expect.equals(a99, result.a99);
-  Expect.equals(a100, result.a100);
-  Expect.equals(a101, result.a101);
-  Expect.equals(a102, result.a102);
-  Expect.equals(a103, result.a103);
-  Expect.equals(a104, result.a104);
-  Expect.equals(a105, result.a105);
-  Expect.equals(a106, result.a106);
-  Expect.equals(a107, result.a107);
-  Expect.equals(a108, result.a108);
-  Expect.equals(a109, result.a109);
-  Expect.equals(a110, result.a110);
-  Expect.equals(a111, result.a111);
-  Expect.equals(a112, result.a112);
-  Expect.equals(a113, result.a113);
-  Expect.equals(a114, result.a114);
-  Expect.equals(a115, result.a115);
-  Expect.equals(a116, result.a116);
-  Expect.equals(a117, result.a117);
-  Expect.equals(a118, result.a118);
-  Expect.equals(a119, result.a119);
-  Expect.equals(a120, result.a120);
-  Expect.equals(a121, result.a121);
-  Expect.equals(a122, result.a122);
-  Expect.equals(a123, result.a123);
-  Expect.equals(a124, result.a124);
-  Expect.equals(a125, result.a125);
-  Expect.equals(a126, result.a126);
-  Expect.equals(a127, result.a127);
-}
-
-final returnStruct3BytesPackedIntLeaf = ffiTestFunctions.lookupFunction<
-    Struct3BytesPackedInt Function(Int8, Int16),
-    Struct3BytesPackedInt Function(
-        int, int)>("ReturnStruct3BytesPackedInt", isLeaf: true);
-
-/// Small struct with mis-aligned member.
-void testReturnStruct3BytesPackedIntLeaf() {
-  int a0;
-  int a1;
-
-  a0 = -1;
-  a1 = 2;
-
-  final result = returnStruct3BytesPackedIntLeaf(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-}
-
-final returnStruct8BytesPackedIntLeaf = ffiTestFunctions.lookupFunction<
-    Struct8BytesPackedInt Function(Uint8, Uint32, Uint8, Uint8, Uint8),
-    Struct8BytesPackedInt Function(
-        int, int, int, int, int)>("ReturnStruct8BytesPackedInt", isLeaf: true);
-
-/// Struct with mis-aligned member.
-void testReturnStruct8BytesPackedIntLeaf() {
-  int a0;
-  int a1;
-  int a2;
-  int a3;
-  int a4;
-
-  a0 = 1;
-  a1 = 2;
-  a2 = 3;
-  a3 = 4;
-  a4 = 5;
-
-  final result = returnStruct8BytesPackedIntLeaf(a0, a1, a2, a3, a4);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-  Expect.equals(a3, result.a3);
-  Expect.equals(a4, result.a4);
-}
-
-final returnStruct9BytesPackedMixedLeaf = ffiTestFunctions.lookupFunction<
-    Struct9BytesPackedMixed Function(Uint8, Double),
-    Struct9BytesPackedMixed Function(
-        int, double)>("ReturnStruct9BytesPackedMixed", isLeaf: true);
-
-/// Struct with mis-aligned member.
-/// Tests backfilling of CPU and FPU registers.
-void testReturnStruct9BytesPackedMixedLeaf() {
-  int a0;
-  double a1;
-
-  a0 = 1;
-  a1 = 2.0;
-
-  final result = returnStruct9BytesPackedMixedLeaf(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.approxEquals(a1, result.a1);
-}
-
-final returnUnion4BytesMixedLeaf = ffiTestFunctions.lookupFunction<
-    Union4BytesMixed Function(Uint32),
-    Union4BytesMixed Function(int)>("ReturnUnion4BytesMixed", isLeaf: true);
-
-/// Returning a mixed integer/float union.
-void testReturnUnion4BytesMixedLeaf() {
-  int a0;
-
-  a0 = 1;
-
-  final result = returnUnion4BytesMixedLeaf(a0);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-}
-
-final returnUnion8BytesNestedFloatLeaf = ffiTestFunctions.lookupFunction<
-    Union8BytesNestedFloat Function(Double),
-    Union8BytesNestedFloat Function(
-        double)>("ReturnUnion8BytesNestedFloat", isLeaf: true);
-
-/// Returning a floating point only union.
-void testReturnUnion8BytesNestedFloatLeaf() {
-  double a0;
-
-  a0 = -1.0;
-
-  final result = returnUnion8BytesNestedFloatLeaf(a0);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0, result.a0);
-}
-
-final returnUnion9BytesNestedIntLeaf = ffiTestFunctions.lookupFunction<
-    Union9BytesNestedInt Function(Struct8BytesInt),
-    Union9BytesNestedInt Function(
-        Struct8BytesInt)>("ReturnUnion9BytesNestedInt", isLeaf: true);
-
-/// Returning a mixed-size union.
-void testReturnUnion9BytesNestedIntLeaf() {
-  final a0Pointer = calloc<Struct8BytesInt>();
-  final Struct8BytesInt a0 = a0Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a0.a2 = -3;
-
-  final result = returnUnion9BytesNestedIntLeaf(a0);
-
-  print("result = $result");
-
-  Expect.equals(a0.a0, result.a0.a0);
-  Expect.equals(a0.a1, result.a0.a1);
-  Expect.equals(a0.a2, result.a0.a2);
-
-  calloc.free(a0Pointer);
-}
-
-final returnUnion16BytesNestedFloatLeaf = ffiTestFunctions.lookupFunction<
-        Union16BytesNestedFloat Function(Struct8BytesHomogeneousFloat),
-        Union16BytesNestedFloat Function(Struct8BytesHomogeneousFloat)>(
-    "ReturnUnion16BytesNestedFloat",
-    isLeaf: true);
-
-/// Returning union with homogenous floats.
-void testReturnUnion16BytesNestedFloatLeaf() {
-  final a0Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a0 = a0Pointer.ref;
-
-  a0.a0 = -1.0;
-  a0.a1 = 2.0;
-
-  final result = returnUnion16BytesNestedFloatLeaf(a0);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0.a0, result.a0.a0);
-  Expect.approxEquals(a0.a1, result.a0.a1);
-
-  calloc.free(a0Pointer);
-}
diff --git a/tests/ffi_2/function_structs_by_value_generated_ret_test.dart b/tests/ffi_2/function_structs_by_value_generated_ret_test.dart
deleted file mode 100644
index a5bf84e5b93..00000000000
--- a/tests/ffi_2/function_structs_by_value_generated_ret_test.dart
+++ /dev/null
@@ -1,1631 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// This file has been automatically generated. Please do not edit it manually.
-// Generated by tests/ffi/generator/structs_by_value_tests_generator.dart.
-//
-// SharedObjects=ffi_test_functions
-// VMOptions=
-// VMOptions=--deterministic --optimization-counter-threshold=90
-// VMOptions=--use-slow-path
-// VMOptions=--use-slow-path --stacktrace-every=100
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
-
-import 'dylib_utils.dart';
-
-// Reuse the compound classes.
-import 'function_structs_by_value_generated_compounds.dart';
-
-final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-void main() {
-  for (int i = 0; i < 100; ++i) {
-    testReturnStruct1ByteInt();
-    testReturnStruct3BytesHomogeneousUint8();
-    testReturnStruct3BytesInt2ByteAligned();
-    testReturnStruct4BytesHomogeneousInt16();
-    testReturnStruct7BytesHomogeneousUint8();
-    testReturnStruct7BytesInt4ByteAligned();
-    testReturnStruct8BytesInt();
-    testReturnStruct8BytesHomogeneousFloat();
-    testReturnStruct8BytesMixed();
-    testReturnStruct9BytesHomogeneousUint8();
-    testReturnStruct9BytesInt4Or8ByteAligned();
-    testReturnStruct12BytesHomogeneousFloat();
-    testReturnStruct16BytesHomogeneousFloat();
-    testReturnStruct16BytesMixed();
-    testReturnStruct16BytesMixed2();
-    testReturnStruct17BytesInt();
-    testReturnStruct19BytesHomogeneousUint8();
-    testReturnStruct20BytesHomogeneousInt32();
-    testReturnStruct20BytesHomogeneousFloat();
-    testReturnStruct32BytesHomogeneousDouble();
-    testReturnStruct40BytesHomogeneousDouble();
-    testReturnStruct1024BytesHomogeneousUint64();
-    testReturnStruct3BytesPackedInt();
-    testReturnStruct8BytesPackedInt();
-    testReturnStruct9BytesPackedMixed();
-    testReturnUnion4BytesMixed();
-    testReturnUnion8BytesNestedFloat();
-    testReturnUnion9BytesNestedInt();
-    testReturnUnion16BytesNestedFloat();
-  }
-}
-
-final returnStruct1ByteInt = ffiTestFunctions.lookupFunction<
-    Struct1ByteInt Function(Int8),
-    Struct1ByteInt Function(int)>("ReturnStruct1ByteInt");
-
-/// Smallest struct with data.
-void testReturnStruct1ByteInt() {
-  int a0;
-
-  a0 = -1;
-
-  final result = returnStruct1ByteInt(a0);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-}
-
-final returnStruct3BytesHomogeneousUint8 = ffiTestFunctions.lookupFunction<
-    Struct3BytesHomogeneousUint8 Function(Uint8, Uint8, Uint8),
-    Struct3BytesHomogeneousUint8 Function(
-        int, int, int)>("ReturnStruct3BytesHomogeneousUint8");
-
-/// Smaller than word size return value on all architectures.
-void testReturnStruct3BytesHomogeneousUint8() {
-  int a0;
-  int a1;
-  int a2;
-
-  a0 = 1;
-  a1 = 2;
-  a2 = 3;
-
-  final result = returnStruct3BytesHomogeneousUint8(a0, a1, a2);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-}
-
-final returnStruct3BytesInt2ByteAligned = ffiTestFunctions.lookupFunction<
-    Struct3BytesInt2ByteAligned Function(Int16, Int8),
-    Struct3BytesInt2ByteAligned Function(
-        int, int)>("ReturnStruct3BytesInt2ByteAligned");
-
-/// Smaller than word size return value on all architectures.
-/// With alignment rules taken into account size is 4 bytes.
-void testReturnStruct3BytesInt2ByteAligned() {
-  int a0;
-  int a1;
-
-  a0 = -1;
-  a1 = 2;
-
-  final result = returnStruct3BytesInt2ByteAligned(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-}
-
-final returnStruct4BytesHomogeneousInt16 = ffiTestFunctions.lookupFunction<
-    Struct4BytesHomogeneousInt16 Function(Int16, Int16),
-    Struct4BytesHomogeneousInt16 Function(
-        int, int)>("ReturnStruct4BytesHomogeneousInt16");
-
-/// Word size return value on 32 bit architectures..
-void testReturnStruct4BytesHomogeneousInt16() {
-  int a0;
-  int a1;
-
-  a0 = -1;
-  a1 = 2;
-
-  final result = returnStruct4BytesHomogeneousInt16(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-}
-
-final returnStruct7BytesHomogeneousUint8 = ffiTestFunctions.lookupFunction<
-    Struct7BytesHomogeneousUint8 Function(
-        Uint8, Uint8, Uint8, Uint8, Uint8, Uint8, Uint8),
-    Struct7BytesHomogeneousUint8 Function(int, int, int, int, int, int,
-        int)>("ReturnStruct7BytesHomogeneousUint8");
-
-/// Non-wordsize return value.
-void testReturnStruct7BytesHomogeneousUint8() {
-  int a0;
-  int a1;
-  int a2;
-  int a3;
-  int a4;
-  int a5;
-  int a6;
-
-  a0 = 1;
-  a1 = 2;
-  a2 = 3;
-  a3 = 4;
-  a4 = 5;
-  a5 = 6;
-  a6 = 7;
-
-  final result = returnStruct7BytesHomogeneousUint8(a0, a1, a2, a3, a4, a5, a6);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-  Expect.equals(a3, result.a3);
-  Expect.equals(a4, result.a4);
-  Expect.equals(a5, result.a5);
-  Expect.equals(a6, result.a6);
-}
-
-final returnStruct7BytesInt4ByteAligned = ffiTestFunctions.lookupFunction<
-    Struct7BytesInt4ByteAligned Function(Int32, Int16, Int8),
-    Struct7BytesInt4ByteAligned Function(
-        int, int, int)>("ReturnStruct7BytesInt4ByteAligned");
-
-/// Non-wordsize return value.
-/// With alignment rules taken into account size is 8 bytes.
-void testReturnStruct7BytesInt4ByteAligned() {
-  int a0;
-  int a1;
-  int a2;
-
-  a0 = -1;
-  a1 = 2;
-  a2 = -3;
-
-  final result = returnStruct7BytesInt4ByteAligned(a0, a1, a2);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-}
-
-final returnStruct8BytesInt = ffiTestFunctions.lookupFunction<
-    Struct8BytesInt Function(Int16, Int16, Int32),
-    Struct8BytesInt Function(int, int, int)>("ReturnStruct8BytesInt");
-
-/// Return value in integer registers on many architectures.
-void testReturnStruct8BytesInt() {
-  int a0;
-  int a1;
-  int a2;
-
-  a0 = -1;
-  a1 = 2;
-  a2 = -3;
-
-  final result = returnStruct8BytesInt(a0, a1, a2);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-}
-
-final returnStruct8BytesHomogeneousFloat = ffiTestFunctions.lookupFunction<
-    Struct8BytesHomogeneousFloat Function(Float, Float),
-    Struct8BytesHomogeneousFloat Function(
-        double, double)>("ReturnStruct8BytesHomogeneousFloat");
-
-/// Return value in FP registers on many architectures.
-void testReturnStruct8BytesHomogeneousFloat() {
-  double a0;
-  double a1;
-
-  a0 = -1.0;
-  a1 = 2.0;
-
-  final result = returnStruct8BytesHomogeneousFloat(a0, a1);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0, result.a0);
-  Expect.approxEquals(a1, result.a1);
-}
-
-final returnStruct8BytesMixed = ffiTestFunctions.lookupFunction<
-    Struct8BytesMixed Function(Float, Int16, Int16),
-    Struct8BytesMixed Function(double, int, int)>("ReturnStruct8BytesMixed");
-
-/// Return value split over FP and integer register in x64.
-void testReturnStruct8BytesMixed() {
-  double a0;
-  int a1;
-  int a2;
-
-  a0 = -1.0;
-  a1 = 2;
-  a2 = -3;
-
-  final result = returnStruct8BytesMixed(a0, a1, a2);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-}
-
-final returnStruct9BytesHomogeneousUint8 = ffiTestFunctions.lookupFunction<
-    Struct9BytesHomogeneousUint8 Function(
-        Uint8, Uint8, Uint8, Uint8, Uint8, Uint8, Uint8, Uint8, Uint8),
-    Struct9BytesHomogeneousUint8 Function(int, int, int, int, int, int, int,
-        int, int)>("ReturnStruct9BytesHomogeneousUint8");
-
-/// The minimum alignment of this struct is only 1 byte based on its fields.
-/// Test that the memory backing these structs is the right size and that
-/// dart:ffi trampolines do not write outside this size.
-void testReturnStruct9BytesHomogeneousUint8() {
-  int a0;
-  int a1;
-  int a2;
-  int a3;
-  int a4;
-  int a5;
-  int a6;
-  int a7;
-  int a8;
-
-  a0 = 1;
-  a1 = 2;
-  a2 = 3;
-  a3 = 4;
-  a4 = 5;
-  a5 = 6;
-  a6 = 7;
-  a7 = 8;
-  a8 = 9;
-
-  final result =
-      returnStruct9BytesHomogeneousUint8(a0, a1, a2, a3, a4, a5, a6, a7, a8);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-  Expect.equals(a3, result.a3);
-  Expect.equals(a4, result.a4);
-  Expect.equals(a5, result.a5);
-  Expect.equals(a6, result.a6);
-  Expect.equals(a7, result.a7);
-  Expect.equals(a8, result.a8);
-}
-
-final returnStruct9BytesInt4Or8ByteAligned = ffiTestFunctions.lookupFunction<
-    Struct9BytesInt4Or8ByteAligned Function(Int64, Int8),
-    Struct9BytesInt4Or8ByteAligned Function(
-        int, int)>("ReturnStruct9BytesInt4Or8ByteAligned");
-
-/// Return value in two integer registers on x64.
-/// With alignment rules taken into account size is 12 or 16 bytes.
-void testReturnStruct9BytesInt4Or8ByteAligned() {
-  int a0;
-  int a1;
-
-  a0 = -1;
-  a1 = 2;
-
-  final result = returnStruct9BytesInt4Or8ByteAligned(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-}
-
-final returnStruct12BytesHomogeneousFloat = ffiTestFunctions.lookupFunction<
-    Struct12BytesHomogeneousFloat Function(Float, Float, Float),
-    Struct12BytesHomogeneousFloat Function(
-        double, double, double)>("ReturnStruct12BytesHomogeneousFloat");
-
-/// Return value in FPU registers, but does not use all registers on arm hardfp
-/// and arm64.
-void testReturnStruct12BytesHomogeneousFloat() {
-  double a0;
-  double a1;
-  double a2;
-
-  a0 = -1.0;
-  a1 = 2.0;
-  a2 = -3.0;
-
-  final result = returnStruct12BytesHomogeneousFloat(a0, a1, a2);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0, result.a0);
-  Expect.approxEquals(a1, result.a1);
-  Expect.approxEquals(a2, result.a2);
-}
-
-final returnStruct16BytesHomogeneousFloat = ffiTestFunctions.lookupFunction<
-    Struct16BytesHomogeneousFloat Function(Float, Float, Float, Float),
-    Struct16BytesHomogeneousFloat Function(
-        double, double, double, double)>("ReturnStruct16BytesHomogeneousFloat");
-
-/// Return value in FPU registers on arm hardfp and arm64.
-void testReturnStruct16BytesHomogeneousFloat() {
-  double a0;
-  double a1;
-  double a2;
-  double a3;
-
-  a0 = -1.0;
-  a1 = 2.0;
-  a2 = -3.0;
-  a3 = 4.0;
-
-  final result = returnStruct16BytesHomogeneousFloat(a0, a1, a2, a3);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0, result.a0);
-  Expect.approxEquals(a1, result.a1);
-  Expect.approxEquals(a2, result.a2);
-  Expect.approxEquals(a3, result.a3);
-}
-
-final returnStruct16BytesMixed = ffiTestFunctions.lookupFunction<
-    Struct16BytesMixed Function(Double, Int64),
-    Struct16BytesMixed Function(double, int)>("ReturnStruct16BytesMixed");
-
-/// Return value split over FP and integer register in x64.
-void testReturnStruct16BytesMixed() {
-  double a0;
-  int a1;
-
-  a0 = -1.0;
-  a1 = 2;
-
-  final result = returnStruct16BytesMixed(a0, a1);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-}
-
-final returnStruct16BytesMixed2 = ffiTestFunctions.lookupFunction<
-    Struct16BytesMixed2 Function(Float, Float, Float, Int32),
-    Struct16BytesMixed2 Function(
-        double, double, double, int)>("ReturnStruct16BytesMixed2");
-
-/// Return value split over FP and integer register in x64.
-/// The integer register contains half float half int.
-void testReturnStruct16BytesMixed2() {
-  double a0;
-  double a1;
-  double a2;
-  int a3;
-
-  a0 = -1.0;
-  a1 = 2.0;
-  a2 = -3.0;
-  a3 = 4;
-
-  final result = returnStruct16BytesMixed2(a0, a1, a2, a3);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0, result.a0);
-  Expect.approxEquals(a1, result.a1);
-  Expect.approxEquals(a2, result.a2);
-  Expect.equals(a3, result.a3);
-}
-
-final returnStruct17BytesInt = ffiTestFunctions.lookupFunction<
-    Struct17BytesInt Function(Int64, Int64, Int8),
-    Struct17BytesInt Function(int, int, int)>("ReturnStruct17BytesInt");
-
-/// Return value returned in preallocated space passed by pointer on most ABIs.
-/// Is non word size on purpose, to test that structs are rounded up to word size
-/// on all ABIs.
-void testReturnStruct17BytesInt() {
-  int a0;
-  int a1;
-  int a2;
-
-  a0 = -1;
-  a1 = 2;
-  a2 = -3;
-
-  final result = returnStruct17BytesInt(a0, a1, a2);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-}
-
-final returnStruct19BytesHomogeneousUint8 = ffiTestFunctions.lookupFunction<
-    Struct19BytesHomogeneousUint8 Function(
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8,
-        Uint8),
-    Struct19BytesHomogeneousUint8 Function(
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int)>("ReturnStruct19BytesHomogeneousUint8");
-
-/// The minimum alignment of this struct is only 1 byte based on its fields.
-/// Test that the memory backing these structs is the right size and that
-/// dart:ffi trampolines do not write outside this size.
-void testReturnStruct19BytesHomogeneousUint8() {
-  int a0;
-  int a1;
-  int a2;
-  int a3;
-  int a4;
-  int a5;
-  int a6;
-  int a7;
-  int a8;
-  int a9;
-  int a10;
-  int a11;
-  int a12;
-  int a13;
-  int a14;
-  int a15;
-  int a16;
-  int a17;
-  int a18;
-
-  a0 = 1;
-  a1 = 2;
-  a2 = 3;
-  a3 = 4;
-  a4 = 5;
-  a5 = 6;
-  a6 = 7;
-  a7 = 8;
-  a8 = 9;
-  a9 = 10;
-  a10 = 11;
-  a11 = 12;
-  a12 = 13;
-  a13 = 14;
-  a14 = 15;
-  a15 = 16;
-  a16 = 17;
-  a17 = 18;
-  a18 = 19;
-
-  final result = returnStruct19BytesHomogeneousUint8(a0, a1, a2, a3, a4, a5, a6,
-      a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-  Expect.equals(a3, result.a3);
-  Expect.equals(a4, result.a4);
-  Expect.equals(a5, result.a5);
-  Expect.equals(a6, result.a6);
-  Expect.equals(a7, result.a7);
-  Expect.equals(a8, result.a8);
-  Expect.equals(a9, result.a9);
-  Expect.equals(a10, result.a10);
-  Expect.equals(a11, result.a11);
-  Expect.equals(a12, result.a12);
-  Expect.equals(a13, result.a13);
-  Expect.equals(a14, result.a14);
-  Expect.equals(a15, result.a15);
-  Expect.equals(a16, result.a16);
-  Expect.equals(a17, result.a17);
-  Expect.equals(a18, result.a18);
-}
-
-final returnStruct20BytesHomogeneousInt32 = ffiTestFunctions.lookupFunction<
-    Struct20BytesHomogeneousInt32 Function(Int32, Int32, Int32, Int32, Int32),
-    Struct20BytesHomogeneousInt32 Function(
-        int, int, int, int, int)>("ReturnStruct20BytesHomogeneousInt32");
-
-/// Return value too big to go in cpu registers on arm64.
-void testReturnStruct20BytesHomogeneousInt32() {
-  int a0;
-  int a1;
-  int a2;
-  int a3;
-  int a4;
-
-  a0 = -1;
-  a1 = 2;
-  a2 = -3;
-  a3 = 4;
-  a4 = -5;
-
-  final result = returnStruct20BytesHomogeneousInt32(a0, a1, a2, a3, a4);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-  Expect.equals(a3, result.a3);
-  Expect.equals(a4, result.a4);
-}
-
-final returnStruct20BytesHomogeneousFloat = ffiTestFunctions.lookupFunction<
-    Struct20BytesHomogeneousFloat Function(Float, Float, Float, Float, Float),
-    Struct20BytesHomogeneousFloat Function(double, double, double, double,
-        double)>("ReturnStruct20BytesHomogeneousFloat");
-
-/// Return value too big to go in FPU registers on x64, arm hardfp and arm64.
-void testReturnStruct20BytesHomogeneousFloat() {
-  double a0;
-  double a1;
-  double a2;
-  double a3;
-  double a4;
-
-  a0 = -1.0;
-  a1 = 2.0;
-  a2 = -3.0;
-  a3 = 4.0;
-  a4 = -5.0;
-
-  final result = returnStruct20BytesHomogeneousFloat(a0, a1, a2, a3, a4);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0, result.a0);
-  Expect.approxEquals(a1, result.a1);
-  Expect.approxEquals(a2, result.a2);
-  Expect.approxEquals(a3, result.a3);
-  Expect.approxEquals(a4, result.a4);
-}
-
-final returnStruct32BytesHomogeneousDouble = ffiTestFunctions.lookupFunction<
-    Struct32BytesHomogeneousDouble Function(Double, Double, Double, Double),
-    Struct32BytesHomogeneousDouble Function(double, double, double,
-        double)>("ReturnStruct32BytesHomogeneousDouble");
-
-/// Return value in FPU registers on arm64.
-void testReturnStruct32BytesHomogeneousDouble() {
-  double a0;
-  double a1;
-  double a2;
-  double a3;
-
-  a0 = -1.0;
-  a1 = 2.0;
-  a2 = -3.0;
-  a3 = 4.0;
-
-  final result = returnStruct32BytesHomogeneousDouble(a0, a1, a2, a3);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0, result.a0);
-  Expect.approxEquals(a1, result.a1);
-  Expect.approxEquals(a2, result.a2);
-  Expect.approxEquals(a3, result.a3);
-}
-
-final returnStruct40BytesHomogeneousDouble = ffiTestFunctions.lookupFunction<
-    Struct40BytesHomogeneousDouble Function(
-        Double, Double, Double, Double, Double),
-    Struct40BytesHomogeneousDouble Function(double, double, double, double,
-        double)>("ReturnStruct40BytesHomogeneousDouble");
-
-/// Return value too big to go in FPU registers on arm64.
-void testReturnStruct40BytesHomogeneousDouble() {
-  double a0;
-  double a1;
-  double a2;
-  double a3;
-  double a4;
-
-  a0 = -1.0;
-  a1 = 2.0;
-  a2 = -3.0;
-  a3 = 4.0;
-  a4 = -5.0;
-
-  final result = returnStruct40BytesHomogeneousDouble(a0, a1, a2, a3, a4);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0, result.a0);
-  Expect.approxEquals(a1, result.a1);
-  Expect.approxEquals(a2, result.a2);
-  Expect.approxEquals(a3, result.a3);
-  Expect.approxEquals(a4, result.a4);
-}
-
-final returnStruct1024BytesHomogeneousUint64 = ffiTestFunctions.lookupFunction<
-    Struct1024BytesHomogeneousUint64 Function(
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64,
-        Uint64),
-    Struct1024BytesHomogeneousUint64 Function(
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int,
-        int)>("ReturnStruct1024BytesHomogeneousUint64");
-
-/// Test 1kb struct.
-void testReturnStruct1024BytesHomogeneousUint64() {
-  int a0;
-  int a1;
-  int a2;
-  int a3;
-  int a4;
-  int a5;
-  int a6;
-  int a7;
-  int a8;
-  int a9;
-  int a10;
-  int a11;
-  int a12;
-  int a13;
-  int a14;
-  int a15;
-  int a16;
-  int a17;
-  int a18;
-  int a19;
-  int a20;
-  int a21;
-  int a22;
-  int a23;
-  int a24;
-  int a25;
-  int a26;
-  int a27;
-  int a28;
-  int a29;
-  int a30;
-  int a31;
-  int a32;
-  int a33;
-  int a34;
-  int a35;
-  int a36;
-  int a37;
-  int a38;
-  int a39;
-  int a40;
-  int a41;
-  int a42;
-  int a43;
-  int a44;
-  int a45;
-  int a46;
-  int a47;
-  int a48;
-  int a49;
-  int a50;
-  int a51;
-  int a52;
-  int a53;
-  int a54;
-  int a55;
-  int a56;
-  int a57;
-  int a58;
-  int a59;
-  int a60;
-  int a61;
-  int a62;
-  int a63;
-  int a64;
-  int a65;
-  int a66;
-  int a67;
-  int a68;
-  int a69;
-  int a70;
-  int a71;
-  int a72;
-  int a73;
-  int a74;
-  int a75;
-  int a76;
-  int a77;
-  int a78;
-  int a79;
-  int a80;
-  int a81;
-  int a82;
-  int a83;
-  int a84;
-  int a85;
-  int a86;
-  int a87;
-  int a88;
-  int a89;
-  int a90;
-  int a91;
-  int a92;
-  int a93;
-  int a94;
-  int a95;
-  int a96;
-  int a97;
-  int a98;
-  int a99;
-  int a100;
-  int a101;
-  int a102;
-  int a103;
-  int a104;
-  int a105;
-  int a106;
-  int a107;
-  int a108;
-  int a109;
-  int a110;
-  int a111;
-  int a112;
-  int a113;
-  int a114;
-  int a115;
-  int a116;
-  int a117;
-  int a118;
-  int a119;
-  int a120;
-  int a121;
-  int a122;
-  int a123;
-  int a124;
-  int a125;
-  int a126;
-  int a127;
-
-  a0 = 1;
-  a1 = 2;
-  a2 = 3;
-  a3 = 4;
-  a4 = 5;
-  a5 = 6;
-  a6 = 7;
-  a7 = 8;
-  a8 = 9;
-  a9 = 10;
-  a10 = 11;
-  a11 = 12;
-  a12 = 13;
-  a13 = 14;
-  a14 = 15;
-  a15 = 16;
-  a16 = 17;
-  a17 = 18;
-  a18 = 19;
-  a19 = 20;
-  a20 = 21;
-  a21 = 22;
-  a22 = 23;
-  a23 = 24;
-  a24 = 25;
-  a25 = 26;
-  a26 = 27;
-  a27 = 28;
-  a28 = 29;
-  a29 = 30;
-  a30 = 31;
-  a31 = 32;
-  a32 = 33;
-  a33 = 34;
-  a34 = 35;
-  a35 = 36;
-  a36 = 37;
-  a37 = 38;
-  a38 = 39;
-  a39 = 40;
-  a40 = 41;
-  a41 = 42;
-  a42 = 43;
-  a43 = 44;
-  a44 = 45;
-  a45 = 46;
-  a46 = 47;
-  a47 = 48;
-  a48 = 49;
-  a49 = 50;
-  a50 = 51;
-  a51 = 52;
-  a52 = 53;
-  a53 = 54;
-  a54 = 55;
-  a55 = 56;
-  a56 = 57;
-  a57 = 58;
-  a58 = 59;
-  a59 = 60;
-  a60 = 61;
-  a61 = 62;
-  a62 = 63;
-  a63 = 64;
-  a64 = 65;
-  a65 = 66;
-  a66 = 67;
-  a67 = 68;
-  a68 = 69;
-  a69 = 70;
-  a70 = 71;
-  a71 = 72;
-  a72 = 73;
-  a73 = 74;
-  a74 = 75;
-  a75 = 76;
-  a76 = 77;
-  a77 = 78;
-  a78 = 79;
-  a79 = 80;
-  a80 = 81;
-  a81 = 82;
-  a82 = 83;
-  a83 = 84;
-  a84 = 85;
-  a85 = 86;
-  a86 = 87;
-  a87 = 88;
-  a88 = 89;
-  a89 = 90;
-  a90 = 91;
-  a91 = 92;
-  a92 = 93;
-  a93 = 94;
-  a94 = 95;
-  a95 = 96;
-  a96 = 97;
-  a97 = 98;
-  a98 = 99;
-  a99 = 100;
-  a100 = 101;
-  a101 = 102;
-  a102 = 103;
-  a103 = 104;
-  a104 = 105;
-  a105 = 106;
-  a106 = 107;
-  a107 = 108;
-  a108 = 109;
-  a109 = 110;
-  a110 = 111;
-  a111 = 112;
-  a112 = 113;
-  a113 = 114;
-  a114 = 115;
-  a115 = 116;
-  a116 = 117;
-  a117 = 118;
-  a118 = 119;
-  a119 = 120;
-  a120 = 121;
-  a121 = 122;
-  a122 = 123;
-  a123 = 124;
-  a124 = 125;
-  a125 = 126;
-  a126 = 127;
-  a127 = 128;
-
-  final result = returnStruct1024BytesHomogeneousUint64(
-      a0,
-      a1,
-      a2,
-      a3,
-      a4,
-      a5,
-      a6,
-      a7,
-      a8,
-      a9,
-      a10,
-      a11,
-      a12,
-      a13,
-      a14,
-      a15,
-      a16,
-      a17,
-      a18,
-      a19,
-      a20,
-      a21,
-      a22,
-      a23,
-      a24,
-      a25,
-      a26,
-      a27,
-      a28,
-      a29,
-      a30,
-      a31,
-      a32,
-      a33,
-      a34,
-      a35,
-      a36,
-      a37,
-      a38,
-      a39,
-      a40,
-      a41,
-      a42,
-      a43,
-      a44,
-      a45,
-      a46,
-      a47,
-      a48,
-      a49,
-      a50,
-      a51,
-      a52,
-      a53,
-      a54,
-      a55,
-      a56,
-      a57,
-      a58,
-      a59,
-      a60,
-      a61,
-      a62,
-      a63,
-      a64,
-      a65,
-      a66,
-      a67,
-      a68,
-      a69,
-      a70,
-      a71,
-      a72,
-      a73,
-      a74,
-      a75,
-      a76,
-      a77,
-      a78,
-      a79,
-      a80,
-      a81,
-      a82,
-      a83,
-      a84,
-      a85,
-      a86,
-      a87,
-      a88,
-      a89,
-      a90,
-      a91,
-      a92,
-      a93,
-      a94,
-      a95,
-      a96,
-      a97,
-      a98,
-      a99,
-      a100,
-      a101,
-      a102,
-      a103,
-      a104,
-      a105,
-      a106,
-      a107,
-      a108,
-      a109,
-      a110,
-      a111,
-      a112,
-      a113,
-      a114,
-      a115,
-      a116,
-      a117,
-      a118,
-      a119,
-      a120,
-      a121,
-      a122,
-      a123,
-      a124,
-      a125,
-      a126,
-      a127);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-  Expect.equals(a3, result.a3);
-  Expect.equals(a4, result.a4);
-  Expect.equals(a5, result.a5);
-  Expect.equals(a6, result.a6);
-  Expect.equals(a7, result.a7);
-  Expect.equals(a8, result.a8);
-  Expect.equals(a9, result.a9);
-  Expect.equals(a10, result.a10);
-  Expect.equals(a11, result.a11);
-  Expect.equals(a12, result.a12);
-  Expect.equals(a13, result.a13);
-  Expect.equals(a14, result.a14);
-  Expect.equals(a15, result.a15);
-  Expect.equals(a16, result.a16);
-  Expect.equals(a17, result.a17);
-  Expect.equals(a18, result.a18);
-  Expect.equals(a19, result.a19);
-  Expect.equals(a20, result.a20);
-  Expect.equals(a21, result.a21);
-  Expect.equals(a22, result.a22);
-  Expect.equals(a23, result.a23);
-  Expect.equals(a24, result.a24);
-  Expect.equals(a25, result.a25);
-  Expect.equals(a26, result.a26);
-  Expect.equals(a27, result.a27);
-  Expect.equals(a28, result.a28);
-  Expect.equals(a29, result.a29);
-  Expect.equals(a30, result.a30);
-  Expect.equals(a31, result.a31);
-  Expect.equals(a32, result.a32);
-  Expect.equals(a33, result.a33);
-  Expect.equals(a34, result.a34);
-  Expect.equals(a35, result.a35);
-  Expect.equals(a36, result.a36);
-  Expect.equals(a37, result.a37);
-  Expect.equals(a38, result.a38);
-  Expect.equals(a39, result.a39);
-  Expect.equals(a40, result.a40);
-  Expect.equals(a41, result.a41);
-  Expect.equals(a42, result.a42);
-  Expect.equals(a43, result.a43);
-  Expect.equals(a44, result.a44);
-  Expect.equals(a45, result.a45);
-  Expect.equals(a46, result.a46);
-  Expect.equals(a47, result.a47);
-  Expect.equals(a48, result.a48);
-  Expect.equals(a49, result.a49);
-  Expect.equals(a50, result.a50);
-  Expect.equals(a51, result.a51);
-  Expect.equals(a52, result.a52);
-  Expect.equals(a53, result.a53);
-  Expect.equals(a54, result.a54);
-  Expect.equals(a55, result.a55);
-  Expect.equals(a56, result.a56);
-  Expect.equals(a57, result.a57);
-  Expect.equals(a58, result.a58);
-  Expect.equals(a59, result.a59);
-  Expect.equals(a60, result.a60);
-  Expect.equals(a61, result.a61);
-  Expect.equals(a62, result.a62);
-  Expect.equals(a63, result.a63);
-  Expect.equals(a64, result.a64);
-  Expect.equals(a65, result.a65);
-  Expect.equals(a66, result.a66);
-  Expect.equals(a67, result.a67);
-  Expect.equals(a68, result.a68);
-  Expect.equals(a69, result.a69);
-  Expect.equals(a70, result.a70);
-  Expect.equals(a71, result.a71);
-  Expect.equals(a72, result.a72);
-  Expect.equals(a73, result.a73);
-  Expect.equals(a74, result.a74);
-  Expect.equals(a75, result.a75);
-  Expect.equals(a76, result.a76);
-  Expect.equals(a77, result.a77);
-  Expect.equals(a78, result.a78);
-  Expect.equals(a79, result.a79);
-  Expect.equals(a80, result.a80);
-  Expect.equals(a81, result.a81);
-  Expect.equals(a82, result.a82);
-  Expect.equals(a83, result.a83);
-  Expect.equals(a84, result.a84);
-  Expect.equals(a85, result.a85);
-  Expect.equals(a86, result.a86);
-  Expect.equals(a87, result.a87);
-  Expect.equals(a88, result.a88);
-  Expect.equals(a89, result.a89);
-  Expect.equals(a90, result.a90);
-  Expect.equals(a91, result.a91);
-  Expect.equals(a92, result.a92);
-  Expect.equals(a93, result.a93);
-  Expect.equals(a94, result.a94);
-  Expect.equals(a95, result.a95);
-  Expect.equals(a96, result.a96);
-  Expect.equals(a97, result.a97);
-  Expect.equals(a98, result.a98);
-  Expect.equals(a99, result.a99);
-  Expect.equals(a100, result.a100);
-  Expect.equals(a101, result.a101);
-  Expect.equals(a102, result.a102);
-  Expect.equals(a103, result.a103);
-  Expect.equals(a104, result.a104);
-  Expect.equals(a105, result.a105);
-  Expect.equals(a106, result.a106);
-  Expect.equals(a107, result.a107);
-  Expect.equals(a108, result.a108);
-  Expect.equals(a109, result.a109);
-  Expect.equals(a110, result.a110);
-  Expect.equals(a111, result.a111);
-  Expect.equals(a112, result.a112);
-  Expect.equals(a113, result.a113);
-  Expect.equals(a114, result.a114);
-  Expect.equals(a115, result.a115);
-  Expect.equals(a116, result.a116);
-  Expect.equals(a117, result.a117);
-  Expect.equals(a118, result.a118);
-  Expect.equals(a119, result.a119);
-  Expect.equals(a120, result.a120);
-  Expect.equals(a121, result.a121);
-  Expect.equals(a122, result.a122);
-  Expect.equals(a123, result.a123);
-  Expect.equals(a124, result.a124);
-  Expect.equals(a125, result.a125);
-  Expect.equals(a126, result.a126);
-  Expect.equals(a127, result.a127);
-}
-
-final returnStruct3BytesPackedInt = ffiTestFunctions.lookupFunction<
-    Struct3BytesPackedInt Function(Int8, Int16),
-    Struct3BytesPackedInt Function(int, int)>("ReturnStruct3BytesPackedInt");
-
-/// Small struct with mis-aligned member.
-void testReturnStruct3BytesPackedInt() {
-  int a0;
-  int a1;
-
-  a0 = -1;
-  a1 = 2;
-
-  final result = returnStruct3BytesPackedInt(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-}
-
-final returnStruct8BytesPackedInt = ffiTestFunctions.lookupFunction<
-    Struct8BytesPackedInt Function(Uint8, Uint32, Uint8, Uint8, Uint8),
-    Struct8BytesPackedInt Function(
-        int, int, int, int, int)>("ReturnStruct8BytesPackedInt");
-
-/// Struct with mis-aligned member.
-void testReturnStruct8BytesPackedInt() {
-  int a0;
-  int a1;
-  int a2;
-  int a3;
-  int a4;
-
-  a0 = 1;
-  a1 = 2;
-  a2 = 3;
-  a3 = 4;
-  a4 = 5;
-
-  final result = returnStruct8BytesPackedInt(a0, a1, a2, a3, a4);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.equals(a1, result.a1);
-  Expect.equals(a2, result.a2);
-  Expect.equals(a3, result.a3);
-  Expect.equals(a4, result.a4);
-}
-
-final returnStruct9BytesPackedMixed = ffiTestFunctions.lookupFunction<
-    Struct9BytesPackedMixed Function(Uint8, Double),
-    Struct9BytesPackedMixed Function(
-        int, double)>("ReturnStruct9BytesPackedMixed");
-
-/// Struct with mis-aligned member.
-/// Tests backfilling of CPU and FPU registers.
-void testReturnStruct9BytesPackedMixed() {
-  int a0;
-  double a1;
-
-  a0 = 1;
-  a1 = 2.0;
-
-  final result = returnStruct9BytesPackedMixed(a0, a1);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-  Expect.approxEquals(a1, result.a1);
-}
-
-final returnUnion4BytesMixed = ffiTestFunctions.lookupFunction<
-    Union4BytesMixed Function(Uint32),
-    Union4BytesMixed Function(int)>("ReturnUnion4BytesMixed");
-
-/// Returning a mixed integer/float union.
-void testReturnUnion4BytesMixed() {
-  int a0;
-
-  a0 = 1;
-
-  final result = returnUnion4BytesMixed(a0);
-
-  print("result = $result");
-
-  Expect.equals(a0, result.a0);
-}
-
-final returnUnion8BytesNestedFloat = ffiTestFunctions.lookupFunction<
-    Union8BytesNestedFloat Function(Double),
-    Union8BytesNestedFloat Function(double)>("ReturnUnion8BytesNestedFloat");
-
-/// Returning a floating point only union.
-void testReturnUnion8BytesNestedFloat() {
-  double a0;
-
-  a0 = -1.0;
-
-  final result = returnUnion8BytesNestedFloat(a0);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0, result.a0);
-}
-
-final returnUnion9BytesNestedInt = ffiTestFunctions.lookupFunction<
-    Union9BytesNestedInt Function(Struct8BytesInt),
-    Union9BytesNestedInt Function(
-        Struct8BytesInt)>("ReturnUnion9BytesNestedInt");
-
-/// Returning a mixed-size union.
-void testReturnUnion9BytesNestedInt() {
-  final a0Pointer = calloc<Struct8BytesInt>();
-  final Struct8BytesInt a0 = a0Pointer.ref;
-
-  a0.a0 = -1;
-  a0.a1 = 2;
-  a0.a2 = -3;
-
-  final result = returnUnion9BytesNestedInt(a0);
-
-  print("result = $result");
-
-  Expect.equals(a0.a0, result.a0.a0);
-  Expect.equals(a0.a1, result.a0.a1);
-  Expect.equals(a0.a2, result.a0.a2);
-
-  calloc.free(a0Pointer);
-}
-
-final returnUnion16BytesNestedFloat = ffiTestFunctions.lookupFunction<
-    Union16BytesNestedFloat Function(Struct8BytesHomogeneousFloat),
-    Union16BytesNestedFloat Function(
-        Struct8BytesHomogeneousFloat)>("ReturnUnion16BytesNestedFloat");
-
-/// Returning union with homogenous floats.
-void testReturnUnion16BytesNestedFloat() {
-  final a0Pointer = calloc<Struct8BytesHomogeneousFloat>();
-  final Struct8BytesHomogeneousFloat a0 = a0Pointer.ref;
-
-  a0.a0 = -1.0;
-  a0.a1 = 2.0;
-
-  final result = returnUnion16BytesNestedFloat(a0);
-
-  print("result = $result");
-
-  Expect.approxEquals(a0.a0, result.a0.a0);
-  Expect.approxEquals(a0.a1, result.a0.a1);
-
-  calloc.free(a0Pointer);
-}
diff --git a/tests/ffi_2/function_structs_test.dart b/tests/ffi_2/function_structs_test.dart
deleted file mode 100644
index 2aa80edfce3..00000000000
--- a/tests/ffi_2/function_structs_test.dart
+++ /dev/null
@@ -1,131 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program for testing dart:ffi function pointers with struct
-// arguments.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
-
-import 'coordinate.dart';
-import 'dylib_utils.dart';
-import 'very_large_struct.dart';
-
-typedef NativeCoordinateOp = Pointer<Coordinate> Function(Pointer<Coordinate>);
-
-void main() {
-  for (final isLeaf in [false, true]) {
-    testFunctionWithStruct(isLeaf: isLeaf);
-    testFunctionWithStructArray(isLeaf: isLeaf);
-    testFunctionWithVeryLargeStruct(isLeaf: isLeaf);
-  }
-}
-
-DynamicLibrary ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-
-/// pass a struct to a c function and get a struct as return value
-void testFunctionWithStruct({bool isLeaf: false}) {
-  Pointer<NativeFunction<NativeCoordinateOp>> p1 =
-      ffiTestFunctions.lookup("TransposeCoordinate");
-  NativeCoordinateOp f1 =
-      (isLeaf ? p1.asFunction(isLeaf: true) : p1.asFunction(isLeaf: false));
-
-  final c1 = calloc<Coordinate>()
-    ..ref.x = 10.0
-    ..ref.y = 20.0;
-  final c2 = calloc<Coordinate>()
-    ..ref.x = 42.0
-    ..ref.y = 84.0
-    ..ref.next = c1;
-  c1.ref.next = c2;
-
-  Coordinate result = f1(c1).ref;
-
-  Expect.approxEquals(20.0, c1.ref.x);
-  Expect.approxEquals(30.0, c1.ref.y);
-
-  Expect.approxEquals(42.0, result.x);
-  Expect.approxEquals(84.0, result.y);
-
-  calloc.free(c1);
-  calloc.free(c2);
-}
-
-/// pass an array of structs to a c function
-void testFunctionWithStructArray({bool isLeaf: false}) {
-  Pointer<NativeFunction<NativeCoordinateOp>> p1 =
-      ffiTestFunctions.lookup("CoordinateElemAt1");
-  NativeCoordinateOp f1 =
-      (isLeaf ? p1.asFunction(isLeaf: true) : p1.asFunction(isLeaf: false));
-
-  final coordinateArray = calloc<Coordinate>(3);
-  Coordinate c1 = coordinateArray[0];
-  Coordinate c2 = coordinateArray[1];
-  Coordinate c3 = coordinateArray[2];
-  c1.x = 10.0;
-  c1.y = 10.0;
-  c1.next = coordinateArray.elementAt(2);
-  c2.x = 20.0;
-  c2.y = 20.0;
-  c2.next = coordinateArray.elementAt(0);
-  c3.x = 30.0;
-  c3.y = 30.0;
-  c3.next = coordinateArray.elementAt(1);
-
-  Coordinate result = f1(coordinateArray.elementAt(0)).ref;
-  Expect.approxEquals(20.0, result.x);
-  Expect.approxEquals(20.0, result.y);
-
-  calloc.free(coordinateArray);
-}
-
-typedef VeryLargeStructSum = int Function(Pointer<VeryLargeStruct>);
-typedef NativeVeryLargeStructSum = Int64 Function(Pointer<VeryLargeStruct>);
-
-void testFunctionWithVeryLargeStruct({bool isLeaf: false}) {
-  Pointer<NativeFunction<NativeVeryLargeStructSum>> p1 =
-      ffiTestFunctions.lookup("SumVeryLargeStruct");
-  VeryLargeStructSum f =
-      (isLeaf ? p1.asFunction(isLeaf: true) : p1.asFunction(isLeaf: false));
-
-  final vlsArray = calloc<VeryLargeStruct>(2);
-  VeryLargeStruct vls1 = vlsArray[0];
-  VeryLargeStruct vls2 = vlsArray[1];
-  List<VeryLargeStruct> structs = [vls1, vls2];
-  for (VeryLargeStruct struct in structs) {
-    struct.a = 1;
-    struct.b = 2;
-    struct.c = 4;
-    struct.d = 8;
-    struct.e = 16;
-    struct.f = 32;
-    struct.g = 64;
-    struct.h = 128;
-    struct.i = 256;
-    struct.j = 512;
-    struct.k = 1024;
-    struct.smallLastField = 1;
-  }
-  vls1.parent = vlsArray.elementAt(1);
-  vls1.numChildren = 2;
-  vls1.children = vlsArray.elementAt(0);
-  vls2.parent = vlsArray.elementAt(1);
-  vls2.parent = nullptr;
-  vls2.numChildren = 0;
-  vls2.children = nullptr;
-
-  int result = f(vlsArray.elementAt(0));
-  Expect.equals(2051, result);
-
-  result = f(vlsArray.elementAt(1));
-  Expect.equals(2048, result);
-
-  calloc.free(vlsArray);
-}
diff --git a/tests/ffi_2/function_test.dart b/tests/ffi_2/function_test.dart
deleted file mode 100644
index c0f9657159c..00000000000
--- a/tests/ffi_2/function_test.dart
+++ /dev/null
@@ -1,475 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program for testing dart:ffi function pointers.
-//
-// VMOptions=
-// VMOptions=--deterministic --optimization-counter-threshold=10
-// VMOptions=--use-slow-path
-// VMOptions=--use-slow-path --stacktrace-every=100
-// VMOptions=--write-protect-code --no-dual-map-code
-// VMOptions=--write-protect-code --no-dual-map-code --use-slow-path
-// VMOptions=--write-protect-code --no-dual-map-code --stacktrace-every=100
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:ffi/ffi.dart";
-import "package:expect/expect.dart";
-
-import 'dylib_utils.dart';
-
-void main() {
-  for (int i = 0; i < 100; ++i) {
-    testNativeFunctionFromCast();
-    testNativeFunctionFromLookup();
-    test64bitInterpretations();
-    testExtension();
-    testTruncation();
-    testNativeFunctionDoubles();
-    testNativeFunctionFloats();
-    testNativeFunctionManyArguments1();
-    testNativeFunctionManyArguments2();
-    testNativeFunctionManyArguments3();
-    testNativeFunctionManyArguments4();
-    testNativeFunctionManyArguments5();
-    testNativeFunctionPointer();
-    testNullPointers();
-    testFloatRounding();
-    testVoidReturn();
-    testNoArgs();
-    testNativeFunctionNullableInt();
-  }
-}
-
-final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-
-typedef NativeBinaryOp = Int32 Function(Int32, Int32);
-typedef UnaryOp = int Function(int);
-typedef BinaryOp = int Function(int, int);
-typedef GenericBinaryOp<T> = int Function(int, T);
-
-void testNativeFunctionFromCast() {
-  Pointer<IntPtr> p1 = calloc();
-  Pointer<NativeFunction<NativeBinaryOp>> p2 = p1.cast();
-  p2.asFunction<BinaryOp>();
-  p2.asFunction<GenericBinaryOp<int>>();
-  calloc.free(p1);
-}
-
-typedef NativeQuadOpSigned = Int64 Function(Int8, Int16, Int32, Int64);
-typedef QuadOp = int Function(int, int, int, int);
-typedef NativeQuadOpUnsigned = Uint64 Function(Uint8, Uint16, Uint32, Uint64);
-
-BinaryOp sumPlus42 =
-    ffiTestFunctions.lookupFunction<NativeBinaryOp, BinaryOp>("SumPlus42");
-
-QuadOp intComputation = ffiTestFunctions
-    .lookupFunction<NativeQuadOpSigned, QuadOp>("IntComputation");
-
-void testNativeFunctionFromLookup() {
-  Expect.equals(49, sumPlus42(3, 4));
-  Expect.equals(49, (sumPlus42 as dynamic)(3, 4));
-  Expect.throwsNoSuchMethodError(() => (sumPlus42 as dynamic)());
-  Expect.throwsTypeError(() => (sumPlus42 as dynamic)(3, 4.0));
-
-  Expect.equals(625, intComputation(125, 250, 500, 1000));
-  Expect.equals(625, (intComputation as dynamic)(125, 250, 500, 1000));
-
-  Expect.equals(
-      0x7FFFFFFFFFFFFFFF, intComputation(0, 0, 0, 0x7FFFFFFFFFFFFFFF));
-  Expect.equals(
-      -0x8000000000000000, intComputation(0, 0, 0, -0x8000000000000000));
-
-  Expect.equals(0x7FFFFFFFFFFFFFFF,
-      (intComputation as dynamic)(0, 0, 0, 0x7FFFFFFFFFFFFFFF));
-  Expect.equals(-0x8000000000000000,
-      (intComputation as dynamic)(0, 0, 0, -0x8000000000000000));
-}
-
-typedef NativeReturnMaxUint8 = Uint8 Function();
-int Function() returnMaxUint8 = ffiTestFunctions
-    .lookup("ReturnMaxUint8")
-    .cast<NativeFunction<NativeReturnMaxUint8>>()
-    .asFunction();
-int Function() returnMaxUint8v2 = ffiTestFunctions
-    .lookup("ReturnMaxUint8v2")
-    .cast<NativeFunction<NativeReturnMaxUint8>>()
-    .asFunction();
-
-typedef NativeReturnMaxUint16 = Uint16 Function();
-int Function() returnMaxUint16 = ffiTestFunctions
-    .lookup("ReturnMaxUint16")
-    .cast<NativeFunction<NativeReturnMaxUint16>>()
-    .asFunction();
-int Function() returnMaxUint16v2 = ffiTestFunctions
-    .lookup("ReturnMaxUint16v2")
-    .cast<NativeFunction<NativeReturnMaxUint16>>()
-    .asFunction();
-
-typedef NativeReturnMaxUint32 = Uint32 Function();
-int Function() returnMaxUint32 = ffiTestFunctions
-    .lookup("ReturnMaxUint32")
-    .cast<NativeFunction<NativeReturnMaxUint32>>()
-    .asFunction();
-int Function() returnMaxUint32v2 = ffiTestFunctions
-    .lookup("ReturnMaxUint32v2")
-    .cast<NativeFunction<NativeReturnMaxUint32>>()
-    .asFunction();
-
-typedef NativeReturnMinInt8 = Int8 Function();
-int Function() returnMinInt8 = ffiTestFunctions
-    .lookup("ReturnMinInt8")
-    .cast<NativeFunction<NativeReturnMinInt8>>()
-    .asFunction();
-int Function() returnMinInt8v2 = ffiTestFunctions
-    .lookup("ReturnMinInt8v2")
-    .cast<NativeFunction<NativeReturnMinInt8>>()
-    .asFunction();
-
-typedef NativeReturnMinInt16 = Int16 Function();
-int Function() returnMinInt16 = ffiTestFunctions
-    .lookup("ReturnMinInt16")
-    .cast<NativeFunction<NativeReturnMinInt16>>()
-    .asFunction();
-int Function() returnMinInt16v2 = ffiTestFunctions
-    .lookup("ReturnMinInt16v2")
-    .cast<NativeFunction<NativeReturnMinInt16>>()
-    .asFunction();
-
-typedef NativeReturnMinInt32 = Int32 Function();
-int Function() returnMinInt32 = ffiTestFunctions
-    .lookup("ReturnMinInt32")
-    .cast<NativeFunction<NativeReturnMinInt32>>()
-    .asFunction();
-int Function() returnMinInt32v2 = ffiTestFunctions
-    .lookup("ReturnMinInt32v2")
-    .cast<NativeFunction<NativeReturnMinInt32>>()
-    .asFunction();
-
-typedef NativeTakeMaxUint8 = IntPtr Function(Uint8);
-int Function(int) takeMaxUint8 = ffiTestFunctions
-    .lookup("TakeMaxUint8")
-    .cast<NativeFunction<NativeTakeMaxUint8>>()
-    .asFunction();
-
-typedef NativeTakeMaxUint16 = IntPtr Function(Uint16);
-int Function(int) takeMaxUint16 = ffiTestFunctions
-    .lookup("TakeMaxUint16")
-    .cast<NativeFunction<NativeTakeMaxUint16>>()
-    .asFunction();
-
-typedef NativeTakeMaxUint32 = IntPtr Function(Uint32);
-int Function(int) takeMaxUint32 = ffiTestFunctions
-    .lookup("TakeMaxUint32")
-    .cast<NativeFunction<NativeTakeMaxUint32>>()
-    .asFunction();
-
-typedef NativeTakeMinInt8 = IntPtr Function(Int8);
-int Function(int) takeMinInt8 = ffiTestFunctions
-    .lookup("TakeMinInt8")
-    .cast<NativeFunction<NativeTakeMinInt8>>()
-    .asFunction();
-
-typedef NativeTakeMinInt16 = IntPtr Function(Int16);
-int Function(int) takeMinInt16 = ffiTestFunctions
-    .lookup("TakeMinInt16")
-    .cast<NativeFunction<NativeTakeMinInt16>>()
-    .asFunction();
-
-typedef NativeTakeMinInt32 = IntPtr Function(Int32);
-int Function(int) takeMinInt32 = ffiTestFunctions
-    .lookup("TakeMinInt32")
-    .cast<NativeFunction<NativeTakeMinInt32>>()
-    .asFunction();
-
-typedef NativeTakeMaxUint8x10 = IntPtr Function(
-    Uint8, Uint8, Uint8, Uint8, Uint8, Uint8, Uint8, Uint8, Uint8, Uint8);
-int Function(int, int, int, int, int, int, int, int, int, int) takeMaxUint8x10 =
-    ffiTestFunctions
-        .lookup("TakeMaxUint8x10")
-        .cast<NativeFunction<NativeTakeMaxUint8x10>>()
-        .asFunction();
-
-void testExtension() {
-  // Sign extension on the way back to Dart.
-  Expect.equals(0xff, returnMaxUint8());
-  Expect.equals(0xffff, returnMaxUint16());
-  Expect.equals(0xffffffff, returnMaxUint32());
-  Expect.equals(-0x80, returnMinInt8());
-  Expect.equals(-0x8000, returnMinInt16());
-  Expect.equals(-0x80000000, returnMinInt32());
-  // Truncation in C, and sign extension back to Dart.
-  Expect.equals(0xff, returnMaxUint8v2());
-  Expect.equals(0xffff, returnMaxUint16v2());
-  Expect.equals(0xffffffff, returnMaxUint32v2());
-  Expect.equals(-0x80, returnMinInt8v2());
-  Expect.equals(-0x8000, returnMinInt16v2());
-  Expect.equals(-0x80000000, returnMinInt32v2());
-
-  // Upper bits propper, should work without truncation.
-  Expect.equals(1, takeMaxUint8(0xff));
-  Expect.equals(1, takeMaxUint16(0xffff));
-  Expect.equals(1, takeMaxUint32(0xffffffff));
-  Expect.equals(1, takeMinInt8(-0x80));
-  Expect.equals(1, takeMinInt16(-0x8000));
-  Expect.equals(1, takeMinInt32(-0x80000000));
-  Expect.equals(
-      1,
-      takeMaxUint8x10(
-          0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff));
-  // Upper bits garbage, needs to truncate.
-  Expect.equals(1, takeMaxUint8(0xabcff));
-  Expect.equals(1, takeMaxUint16(0xabcffff));
-  Expect.equals(1, takeMaxUint32(0xabcffffffff));
-  Expect.equals(1, takeMinInt8(0x8abc80));
-  Expect.equals(1, takeMinInt16(0x8abc8000));
-  Expect.equals(1, takeMinInt32(0x8abc80000000));
-  Expect.equals(
-      1,
-      takeMaxUint8x10(0xabcff, 0xabcff, 0xabcff, 0xabcff, 0xabcff, 0xabcff,
-          0xabcff, 0xabcff, 0xabcff, 0xabcff));
-}
-
-QuadOp uintComputation = ffiTestFunctions
-    .lookupFunction<NativeQuadOpUnsigned, QuadOp>("UintComputation");
-
-void test64bitInterpretations() {
-  // 2 ^ 63 - 1
-  Expect.equals(
-      0x7FFFFFFFFFFFFFFF, uintComputation(0, 0, 0, 0x7FFFFFFFFFFFFFFF));
-  // -2 ^ 63 interpreted as 2 ^ 63
-  Expect.equals(
-      -0x8000000000000000, uintComputation(0, 0, 0, -0x8000000000000000));
-  // -1 interpreted as 2 ^ 64 - 1
-  Expect.equals(-1, uintComputation(0, 0, 0, -1));
-}
-
-typedef NativeSenaryOp = Int64 Function(
-    Int8, Int16, Int32, Uint8, Uint16, Uint32);
-typedef SenaryOp = int Function(int, int, int, int, int, int);
-
-SenaryOp sumSmallNumbers = ffiTestFunctions
-    .lookupFunction<NativeSenaryOp, SenaryOp>("SumSmallNumbers");
-
-void testTruncation() {
-  sumSmallNumbers(128, 0, 0, 0, 0, 0);
-  sumSmallNumbers(-129, 0, 0, 0, 0, 0);
-  sumSmallNumbers(0, 0, 0, 256, 0, 0);
-  sumSmallNumbers(0, 0, 0, -1, 0, 0);
-
-  sumSmallNumbers(0, 0x8000, 0, 0, 0, 0);
-  sumSmallNumbers(0, 0xFFFFFFFFFFFF7FFF, 0, 0, 0, 0);
-  sumSmallNumbers(0, 0, 0, 0, 0x10000, 0);
-  sumSmallNumbers(0, 0, 0, 0, -1, 0);
-
-  Expect.equals(0xFFFFFFFF80000000, sumSmallNumbers(0, 0, 0x80000000, 0, 0, 0));
-  Expect.equals(
-      0x000000007FFFFFFF, sumSmallNumbers(0, 0, 0xFFFFFFFF7FFFFFFF, 0, 0, 0));
-  Expect.equals(0, sumSmallNumbers(0, 0, 0, 0, 0, 0x100000000));
-  Expect.equals(0xFFFFFFFF, sumSmallNumbers(0, 0, 0, 0, 0, -1));
-}
-
-typedef NativeDoubleUnaryOp = Double Function(Double);
-typedef DoubleUnaryOp = double Function(double);
-
-DoubleUnaryOp times1_337Double = ffiTestFunctions
-    .lookupFunction<NativeDoubleUnaryOp, DoubleUnaryOp>("Times1_337Double");
-
-void testNativeFunctionDoubles() {
-  Expect.approxEquals(2.0 * 1.337, times1_337Double(2.0));
-}
-
-typedef NativeFloatUnaryOp = Float Function(Float);
-
-DoubleUnaryOp times1_337Float = ffiTestFunctions
-    .lookupFunction<NativeFloatUnaryOp, DoubleUnaryOp>("Times1_337Float");
-
-void testNativeFunctionFloats() {
-  Expect.approxEquals(1337.0, times1_337Float(1000.0));
-}
-
-typedef NativeDecenaryOp = IntPtr Function(IntPtr, IntPtr, IntPtr, IntPtr,
-    IntPtr, IntPtr, IntPtr, IntPtr, IntPtr, IntPtr);
-typedef NativeDecenaryOp2 = Int16 Function(
-    Int8, Int16, Int8, Int16, Int8, Int16, Int8, Int16, Int8, Int16);
-typedef DecenaryOp = int Function(
-    int, int, int, int, int, int, int, int, int, int);
-
-DecenaryOp sumManyInts = ffiTestFunctions
-    .lookupFunction<NativeDecenaryOp, DecenaryOp>("SumManyInts");
-
-void testNativeFunctionManyArguments1() {
-  Expect.equals(55, sumManyInts(1, 2, 3, 4, 5, 6, 7, 8, 9, 10));
-}
-
-DecenaryOp sumManySmallInts = ffiTestFunctions
-    .lookupFunction<NativeDecenaryOp2, DecenaryOp>("SumManySmallInts");
-
-void testNativeFunctionManyArguments5() {
-  Expect.equals(55, sumManySmallInts(1, 2, 3, 4, 5, 6, 7, 8, 9, 10));
-}
-
-typedef NativeUndenaryOp = IntPtr Function(IntPtr, IntPtr, IntPtr, IntPtr,
-    IntPtr, IntPtr, IntPtr, IntPtr, IntPtr, IntPtr, IntPtr);
-typedef UndenaryOp = int Function(
-    int, int, int, int, int, int, int, int, int, int, int);
-
-UndenaryOp sumManyIntsOdd = ffiTestFunctions
-    .lookupFunction<NativeUndenaryOp, UndenaryOp>("SumManyIntsOdd");
-
-void testNativeFunctionManyArguments4() {
-  Expect.equals(66, sumManyIntsOdd(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11));
-}
-
-typedef NativeDoubleDecenaryOp = Double Function(Double, Double, Double, Double,
-    Double, Double, Double, Double, Double, Double);
-typedef DoubleDecenaryOp = double Function(double, double, double, double,
-    double, double, double, double, double, double);
-
-DoubleDecenaryOp sumManyDoubles = ffiTestFunctions
-    .lookupFunction<NativeDoubleDecenaryOp, DoubleDecenaryOp>("SumManyDoubles");
-
-void testNativeFunctionManyArguments2() {
-  Expect.approxEquals(
-      55.0, sumManyDoubles(1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0));
-}
-
-typedef NativeVigesimalOp = Double Function(
-    IntPtr,
-    Float,
-    IntPtr,
-    Double,
-    IntPtr,
-    Float,
-    IntPtr,
-    Double,
-    IntPtr,
-    Float,
-    IntPtr,
-    Double,
-    IntPtr,
-    Float,
-    IntPtr,
-    Double,
-    IntPtr,
-    Float,
-    IntPtr,
-    Double);
-typedef VigesimalOp = double Function(
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double);
-
-VigesimalOp sumManyNumbers = ffiTestFunctions
-    .lookupFunction<NativeVigesimalOp, VigesimalOp>("SumManyNumbers");
-
-void testNativeFunctionManyArguments3() {
-  Expect.approxEquals(
-      210.0,
-      sumManyNumbers(1, 2.0, 3, 4.0, 5, 6.0, 7, 8.0, 9, 10.0, 11, 12.0, 13,
-          14.0, 15, 16.0, 17, 18.0, 19, 20.0));
-}
-
-typedef Int64PointerUnOp = Pointer<Int64> Function(Pointer<Int64>);
-
-Int64PointerUnOp assign1337Index1 = ffiTestFunctions
-    .lookupFunction<Int64PointerUnOp, Int64PointerUnOp>("Assign1337Index1");
-
-void testNativeFunctionPointer() {
-  Pointer<Int64> p2 = calloc(2);
-  p2.value = 42;
-  p2[1] = 1000;
-  Pointer<Int64> result = assign1337Index1(p2);
-  Expect.equals(1337, result.value);
-  Expect.equals(1337, p2[1]);
-  Expect.equals(p2.elementAt(1).address, result.address);
-  calloc.free(p2);
-}
-
-Int64PointerUnOp nullableInt64ElemAt1 = ffiTestFunctions
-    .lookupFunction<Int64PointerUnOp, Int64PointerUnOp>("NullableInt64ElemAt1");
-
-void testNullPointers() {
-  Pointer<Int64> result = nullableInt64ElemAt1(nullptr);
-  Expect.equals(result, nullptr);
-
-  Pointer<Int64> p2 = calloc(2);
-  result = nullableInt64ElemAt1(p2);
-  Expect.notEquals(result, nullptr);
-  calloc.free(p2);
-}
-
-typedef NativeFloatPointerToBool = Uint8 Function(Pointer<Float>);
-typedef FloatPointerToBool = int Function(Pointer<Float>);
-
-FloatPointerToBool isRoughly1337 = ffiTestFunctions.lookupFunction<
-    NativeFloatPointerToBool, FloatPointerToBool>("IsRoughly1337");
-
-void testFloatRounding() {
-  Pointer<Float> p2 = calloc();
-  p2.value = 1337.0;
-
-  int result = isRoughly1337(p2);
-  Expect.equals(1, result);
-
-  calloc.free(p2);
-}
-
-typedef NativeFloatToVoid = Void Function(Float);
-typedef DoubleToVoid = void Function(double);
-
-DoubleToVoid devNullFloat = ffiTestFunctions
-    .lookupFunction<NativeFloatToVoid, DoubleToVoid>("DevNullFloat");
-
-void testVoidReturn() {
-  devNullFloat(1337.0);
-
-  dynamic loseSignature = devNullFloat;
-  dynamic result = loseSignature(1337.0);
-  Expect.isNull(result);
-}
-
-typedef NativeVoidToFloat = Float Function();
-typedef VoidToDouble = double Function();
-
-VoidToDouble inventFloatValue = ffiTestFunctions
-    .lookupFunction<NativeVoidToFloat, VoidToDouble>("InventFloatValue");
-
-void testNoArgs() {
-  double result = inventFloatValue();
-  Expect.approxEquals(1337.0, result);
-}
-
-void testNativeFunctionNullableInt() {
-  final sumPlus42 = ffiTestFunctions.lookupFunction<
-      Int32 Function(Int32, Int32), int Function(int, int)>("SumPlus42");
-
-  try {
-    sumPlus42(3, null);
-  } catch (e) {
-    // TODO(http://dartbug.com/47098): Save param names to dwarf.
-    Expect.isTrue(e.toString().contains('ffi_param2') ||
-        e.toString().contains('<optimized out>'));
-  }
-}
diff --git a/tests/ffi_2/function_very_many_test.dart b/tests/ffi_2/function_very_many_test.dart
deleted file mode 100644
index 5ac314204c5..00000000000
--- a/tests/ffi_2/function_very_many_test.dart
+++ /dev/null
@@ -1,301 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program for testing dart:ffi calls argument passing.
-//
-// VMOptions=
-// VMOptions=--deterministic --optimization-counter-threshold=10
-// VMOptions=--use-slow-path
-// VMOptions=--use-slow-path --stacktrace-every=100
-// VMOptions=--write-protect-code --no-dual-map-code
-// VMOptions=--write-protect-code --no-dual-map-code --use-slow-path
-// VMOptions=--write-protect-code --no-dual-map-code --stacktrace-every=100
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import 'dylib_utils.dart';
-
-import "package:expect/expect.dart";
-
-void main() {
-  for (int i = 0; i < 100; ++i) {
-    testSumVeryManySmallInts();
-    testSumVeryManyFloatsDoubles();
-  }
-}
-
-final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-
-VeryManyIntsOp sumVeryManySmallInts =
-    ffiTestFunctions.lookupFunction<NativeVeryManyIntsOp, VeryManyIntsOp>(
-        "SumVeryManySmallInts");
-// Very many small integers, tests alignment on stack.
-void testSumVeryManySmallInts() {
-  Expect.equals(
-      40 * 41 / 2,
-      sumVeryManySmallInts(
-          1,
-          2,
-          3,
-          4,
-          5,
-          6,
-          7,
-          8,
-          9,
-          10,
-          11,
-          12,
-          13,
-          14,
-          15,
-          16,
-          17,
-          18,
-          19,
-          20,
-          21,
-          22,
-          23,
-          24,
-          25,
-          26,
-          27,
-          28,
-          29,
-          30,
-          31,
-          32,
-          33,
-          34,
-          35,
-          36,
-          37,
-          38,
-          39,
-          40));
-}
-
-VeryManyFloatsDoublesOp sumVeryManyFloatsDoubles = ffiTestFunctions
-    .lookupFunction<NativeVeryManyFloatsDoublesOp, VeryManyFloatsDoublesOp>(
-        "SumVeryManyFloatsDoubles");
-
-// Very many floating points, tests alignment on stack, and packing in
-// floating point registers in hardfp.
-void testSumVeryManyFloatsDoubles() {
-  Expect.approxEquals(
-      40.0 * 41.0 / 2.0,
-      sumVeryManyFloatsDoubles(
-          1.0,
-          2.0,
-          3.0,
-          4.0,
-          5.0,
-          6.0,
-          7.0,
-          8.0,
-          9.0,
-          10.0,
-          11.0,
-          12.0,
-          13.0,
-          14.0,
-          15.0,
-          16.0,
-          17.0,
-          18.0,
-          19.0,
-          20.0,
-          21.0,
-          22.0,
-          23.0,
-          24.0,
-          25.0,
-          26.0,
-          27.0,
-          28.0,
-          29.0,
-          30.0,
-          31.0,
-          32.0,
-          33.0,
-          34.0,
-          35.0,
-          36.0,
-          37.0,
-          38.0,
-          39.0,
-          40.0));
-}
-
-typedef NativeVeryManyIntsOp = Int16 Function(
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16,
-    Int8,
-    Int16);
-
-typedef VeryManyIntsOp = int Function(
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int,
-    int);
-
-typedef NativeVeryManyFloatsDoublesOp = Double Function(
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double,
-    Float,
-    Double);
-
-typedef VeryManyFloatsDoublesOp = double Function(
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double,
-    double);
diff --git a/tests/ffi_2/hardfp_test.dart b/tests/ffi_2/hardfp_test.dart
deleted file mode 100644
index 0fd7a8e7eee..00000000000
--- a/tests/ffi_2/hardfp_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program for testing dart:ffi function pointers.
-//
-// VMOptions=
-// VMOptions=--deterministic --optimization-counter-threshold=10
-// VMOptions=--use-slow-path
-// VMOptions=--use-slow-path --stacktrace-every=100
-// VMOptions=--write-protect-code --no-dual-map-code
-// VMOptions=--write-protect-code --no-dual-map-code --use-slow-path
-// VMOptions=--write-protect-code --no-dual-map-code --stacktrace-every=100
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-
-import 'callback_tests_utils.dart';
-import 'dylib_utils.dart';
-
-void main() {
-  for (int i = 0; i < 100; ++i) {
-    testSumFloatsAndDoubles();
-    testSumFloatsAndDoublesCallback();
-  }
-}
-
-DynamicLibrary ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-
-final sumFloatsAndDoubles = ffiTestFunctions.lookupFunction<
-    Double Function(Float, Double, Float),
-    double Function(double, double, double)>("SumFloatsAndDoubles");
-
-void testSumFloatsAndDoubles() {
-  Expect.approxEquals(6.0, sumFloatsAndDoubles(1.0, 2.0, 3.0));
-}
-
-void testSumFloatsAndDoublesCallback() {
-  CallbackTest(
-          "SumFloatsAndDoubles",
-          Pointer.fromFunction<Double Function(Float, Double, Float)>(
-              sumFloatsAndDoublesDart, 0.0))
-      .run();
-}
-
-double sumFloatsAndDoublesDart(double a, double b, double c) {
-  print("sumFloatsAndDoublesDart($a, $b, $c)");
-  return a + b + c;
-}
diff --git a/tests/ffi_2/has_symbol_test.dart b/tests/ffi_2/has_symbol_test.dart
deleted file mode 100644
index d07f544a2ea..00000000000
--- a/tests/ffi_2/has_symbol_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart=2.9
-
-import 'dart:ffi';
-import 'dart:io';
-
-import 'package:expect/expect.dart';
-
-import 'ffi_test_helpers.dart';
-
-void main() {
-  testHasSymbol();
-}
-
-void testHasSymbol() {
-  Expect.isTrue(ffiTestFunctions.providesSymbol('ReturnMaxUint8'));
-  Expect.isFalse(ffiTestFunctions.providesSymbol('SymbolNotInLibrary'));
-
-  final p = DynamicLibrary.process();
-  Expect.isFalse(p.providesSymbol('symbol_that_does_not_exist_in_process'));
-  if (Platform.isWindows) {
-    Expect.isTrue(p.providesSymbol('HeapAlloc'));
-    Expect.isTrue(p.providesSymbol('CoTaskMemAlloc'));
-  } else {
-    Expect.isTrue(p.providesSymbol('dlopen'));
-  }
-
-  final e = DynamicLibrary.executable();
-  Expect.isTrue(e.providesSymbol('Dart_Invoke'));
-  Expect.isFalse(e.providesSymbol('symbol_that_does_not_exist_in_executable'));
-}
diff --git a/tests/ffi_2/inline_array_multi_dimensional_test.dart b/tests/ffi_2/inline_array_multi_dimensional_test.dart
deleted file mode 100644
index d3a7b404583..00000000000
--- a/tests/ffi_2/inline_array_multi_dimensional_test.dart
+++ /dev/null
@@ -1,166 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-import 'package:ffi/ffi.dart';
-
-// Reuse compound definitions.
-import 'function_structs_by_value_generated_compounds.dart';
-
-void main() {
-  testSizeOf();
-  testLoad();
-  testLoadMultiAnnotation();
-  testStore();
-  testToString();
-  testRange();
-}
-
-void testSizeOf() {
-  Expect.equals(32, sizeOf<Struct32BytesInlineArrayMultiDimensionalInt>());
-  Expect.equals(64, sizeOf<Struct64BytesInlineArrayMultiDimensionalInt>());
-}
-
-/// Tests the load of nested `Array`s.
-///
-/// Only stores into arrays which do not have nested arrays.
-void testLoad() {
-  final Pointer<Struct32BytesInlineArrayMultiDimensionalInt> pointer = calloc();
-  final struct = pointer.ref;
-  final array = struct.a0;
-  for (int i = 0; i < 2; i++) {
-    for (int j = 0; j < 2; j++) {
-      for (int k = 0; k < 2; k++) {
-        for (int l = 0; l < 2; l++) {
-          for (int m = 0; m < 2; m++) {
-            array[i][j][k][l][m] = i + j + k + l + m;
-          }
-        }
-      }
-    }
-  }
-  for (int i = 0; i < 2; i++) {
-    for (int j = 0; j < 2; j++) {
-      for (int k = 0; k < 2; k++) {
-        for (int l = 0; l < 2; l++) {
-          for (int m = 0; m < 2; m++) {
-            Expect.equals(i + j + k + l + m, array[i][j][k][l][m]);
-          }
-        }
-      }
-    }
-  }
-  calloc.free(pointer);
-}
-
-/// Tests the load of nested `Array`s.
-///
-/// Only stores into arrays which do not have nested arrays.
-void testLoadMultiAnnotation() {
-  final Pointer<Struct64BytesInlineArrayMultiDimensionalInt> pointer = calloc();
-  final struct = pointer.ref;
-  final array = struct.a0;
-  for (int i = 0; i < 2; i++) {
-    for (int j = 0; j < 2; j++) {
-      for (int k = 0; k < 2; k++) {
-        for (int l = 0; l < 2; l++) {
-          for (int m = 0; m < 2; m++) {
-            for (int o = 0; o < 2; o++) {
-              array[i][j][k][l][m][o] = i + j + k + l + m + o;
-            }
-          }
-        }
-      }
-    }
-  }
-  for (int i = 0; i < 2; i++) {
-    for (int j = 0; j < 2; j++) {
-      for (int k = 0; k < 2; k++) {
-        for (int l = 0; l < 2; l++) {
-          for (int m = 0; m < 2; m++) {
-            for (int o = 0; o < 2; o++) {
-              Expect.equals(i + j + k + l + m + o, array[i][j][k][l][m][o]);
-            }
-          }
-        }
-      }
-    }
-  }
-  calloc.free(pointer);
-}
-
-void testStore() {
-  final Pointer<Struct32BytesInlineArrayMultiDimensionalInt> pointer = calloc();
-  final struct = pointer.ref;
-  final array = struct.a0;
-  for (int i = 0; i < 2; i++) {
-    for (int j = 0; j < 2; j++) {
-      for (int k = 0; k < 2; k++) {
-        for (int l = 0; l < 2; l++) {
-          for (int m = 0; m < 2; m++) {
-            array[i][j][k][l][m] = i + j + k + l + m;
-          }
-        }
-      }
-    }
-  }
-  array[0] = array[1]; // Copy many things.
-  for (int j = 0; j < 2; j++) {
-    for (int k = 0; k < 2; k++) {
-      for (int l = 0; l < 2; l++) {
-        for (int m = 0; m < 2; m++) {
-          Expect.equals(array[1][j][k][l][m], array[0][j][k][l][m]);
-        }
-      }
-    }
-  }
-  calloc.free(pointer);
-}
-
-// // Tests the toString of the test generator.
-void testToString() {
-  final Pointer<Struct32BytesInlineArrayMultiDimensionalInt> pointer = calloc();
-  final struct = pointer.ref;
-  final array = struct.a0;
-  for (int i = 0; i < 2; i++) {
-    for (int j = 0; j < 2; j++) {
-      for (int k = 0; k < 2; k++) {
-        for (int l = 0; l < 2; l++) {
-          for (int m = 0; m < 2; m++) {
-            array[i][j][k][l][m] = 16 * i + 8 * j + 4 * k + 2 * l + m;
-          }
-        }
-      }
-    }
-  }
-  Expect.equals(
-      "([[[[[0, 1], [2, 3]], [[4, 5], [6, 7]]], [[[8, 9], [10, 11]], [[12, 13], [14, 15]]]], [[[[16, 17], [18, 19]], [[20, 21], [22, 23]]], [[[24, 25], [26, 27]], [[28, 29], [30, 31]]]]])",
-      struct.toString());
-  calloc.free(pointer);
-}
-
-void testRange() {
-  final pointer = calloc<Struct32BytesInlineArrayMultiDimensionalInt>();
-  final struct = pointer.ref;
-  final array = struct.a0;
-  array[0];
-  array[1];
-  Expect.throws(() => array[-1]);
-  Expect.throws(() => array[-1] = array[1]);
-  Expect.throws(() => array[2]);
-  Expect.throws(() => array[2] = array[1]);
-  array[0][0];
-  array[0][1];
-  Expect.throws(() => array[0][-1]);
-  Expect.throws(() => array[0][-1] = array[0][1]);
-  Expect.throws(() => array[0][2]);
-  Expect.throws(() => array[0][2] = array[0][1]);
-  calloc.free(pointer);
-}
diff --git a/tests/ffi_2/inline_array_test.dart b/tests/ffi_2/inline_array_test.dart
deleted file mode 100644
index f3ff6ba8bce..00000000000
--- a/tests/ffi_2/inline_array_test.dart
+++ /dev/null
@@ -1,92 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-import 'package:ffi/ffi.dart';
-
-// Reuse compound definitions.
-import 'function_structs_by_value_generated_compounds.dart';
-
-void main() {
-  testSizeOf();
-  testLoad();
-  testStore();
-  testToString();
-  testRange();
-}
-
-void testSizeOf() {
-  Expect.equals(8, sizeOf<Struct8BytesInlineArrayInt>());
-  Expect.equals(10, sizeOf<StructInlineArrayIrregular>());
-  Expect.equals(4008, sizeOf<StructInlineArrayBig>());
-}
-
-// Only tests with Pointer as backing store.
-void testLoad() {
-  final pointer = calloc<Struct8BytesInlineArrayInt>();
-  final struct = pointer.ref;
-  final array = struct.a0;
-  pointer.cast<Uint8>()[0] = 42;
-  pointer.cast<Uint8>()[7] = 3;
-  Expect.equals(42, array[0]);
-  Expect.equals(3, array[7]);
-  calloc.free(pointer);
-}
-
-// Only tests with Pointer as backing store.
-void testStore() {
-  final pointer = calloc<Struct8BytesInlineArrayInt>();
-  pointer.cast<Uint8>()[0] = 42;
-  pointer.cast<Uint8>()[7] = 3;
-  final pointer2 = calloc<Struct8BytesInlineArrayInt>();
-  pointer2.ref.a0 = pointer.ref.a0;
-  Expect.equals(42, pointer2.ref.a0[0]);
-  Expect.equals(3, pointer2.ref.a0[7]);
-  calloc.free(pointer);
-  calloc.free(pointer2);
-}
-
-// Tests the toString of the test generator.
-void testToString() {
-  final pointer = calloc<Struct8BytesInlineArrayInt>();
-  final struct = pointer.ref;
-  final array = struct.a0;
-  for (var i = 0; i < 8; i++) {
-    array[i] = i;
-  }
-  Expect.equals("([0, 1, 2, 3, 4, 5, 6, 7])", struct.toString());
-  calloc.free(pointer);
-
-  final pointer2 = calloc<StructInlineArrayIrregular>();
-  final struct2 = pointer2.ref;
-  struct2.a0[0].a0 = 0;
-  struct2.a0[0].a1 = 1;
-  struct2.a0[1].a0 = 2;
-  struct2.a0[1].a1 = 3;
-  struct2.a1 = 4;
-  print(struct2);
-  Expect.equals("([(0, 1), (2, 3)], 4)", struct2.toString());
-  calloc.free(pointer2);
-}
-
-void testRange() {
-  final pointer = calloc<Struct8BytesInlineArrayInt>();
-  final struct = pointer.ref;
-  final array = struct.a0;
-  array[0] = 1;
-  Expect.equals(1, array[0]);
-  array[7] = 7;
-  Expect.equals(7, array[7]);
-  Expect.throws(() => array[-1]);
-  Expect.throws(() => array[-1] = 0);
-  Expect.throws(() => array[8]);
-  Expect.throws(() => array[8] = 0);
-  calloc.free(pointer);
-}
diff --git a/tests/ffi_2/invoke_callback_after_suspension_test.dart b/tests/ffi_2/invoke_callback_after_suspension_test.dart
deleted file mode 100644
index 256d6757726..00000000000
--- a/tests/ffi_2/invoke_callback_after_suspension_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// SharedObjects=ffi_test_functions
-
-import 'dart:async';
-import 'dart:isolate';
-import 'dart:ffi';
-
-import 'callback_tests_utils.dart';
-
-typedef SimpleAdditionType = Int32 Function(Int32, Int32);
-int simpleAddition(int x, int y) {
-  print("simpleAddition($x, $y)");
-  return x + y;
-}
-
-void main() async {
-  // The main isolate is very special and cannot be suspended (due to having an
-  // active api scope throughout it's lifetime), so we run this test in a helper
-  // isolate.
-  const int count = 50;
-  final futures = <Future>[];
-  for (int i = 0; i < count; ++i) {
-    futures.add(Isolate.run(() async {
-      // First make the callback pointer.
-      final callbackFunctionPointer =
-          Pointer.fromFunction<SimpleAdditionType>(simpleAddition, 0);
-
-      // Then cause suspenion of [Thread].
-      await Future.delayed(const Duration(seconds: 1));
-
-      // Then make use of callback.
-      CallbackTest("SimpleAddition", callbackFunctionPointer).run();
-    }));
-  }
-  await Future.wait(futures);
-}
diff --git a/tests/ffi_2/native_effect_test.dart b/tests/ffi_2/native_effect_test.dart
deleted file mode 100644
index 9a7f222a7a6..00000000000
--- a/tests/ffi_2/native_effect_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-// Tests that the dart:internal _nativeEffect flow graph builder works.
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-
-import 'dylib_utils.dart';
-
-void main() {
-  testReturnStruct1ByteInt();
-}
-
-final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-
-final returnStruct1ByteInt = ffiTestFunctions.lookupFunction<
-    Struct1ByteInt Function(Int8),
-    Struct1ByteInt Function(int)>("ReturnStruct1ByteInt");
-
-void testReturnStruct1ByteInt() {
-  final result = returnStruct1ByteInt(1);
-  Expect.equals(1, result.a0);
-}
-
-class Struct1ByteInt extends Struct {
-  @Int8()
-  int a0;
-}
diff --git a/tests/ffi_2/negative_function_test.dart b/tests/ffi_2/negative_function_test.dart
deleted file mode 100644
index 338706d571f..00000000000
--- a/tests/ffi_2/negative_function_test.dart
+++ /dev/null
@@ -1,85 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program for testing error handling with dart:ffi functions.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi' as ffi;
-import 'dylib_utils.dart';
-import "package:expect/expect.dart";
-
-main() {
-  testWrongArity();
-  testWrongTypes();
-  testDynamicAsFunction();
-  testDynamicLookupFunction();
-}
-
-ffi.DynamicLibrary ffiTestFunctions =
-    dlopenPlatformSpecific("ffi_test_functions");
-
-typedef NativeBinaryOp = ffi.Int32 Function(ffi.Int32, ffi.Int32);
-typedef BinaryOp = int Function(int, int);
-
-typedef NativeUnaryOp = ffi.Int64 Function(ffi.Pointer<ffi.Int64>);
-typedef UnaryOp = int Function(ffi.Pointer<ffi.Int64>);
-
-void testWrongArity() {
-  {
-    dynamic sumPlus42 =
-        ffiTestFunctions.lookupFunction<NativeBinaryOp, BinaryOp>("SumPlus42");
-    Expect.throwsNoSuchMethodError(() => sumPlus42(10));
-    Expect.throwsNoSuchMethodError(() => sumPlus42(10, 11, 12));
-    Expect.throwsNoSuchMethodError(() => sumPlus42(10, 11, 12, y: 13));
-  }
-
-  {
-    Function sumPlus42 =
-        ffiTestFunctions.lookupFunction<NativeBinaryOp, BinaryOp>("SumPlus42");
-    Expect.throwsNoSuchMethodError(() => sumPlus42(10));
-    Expect.throwsNoSuchMethodError(() => sumPlus42(10, 11, 12));
-    Expect.throwsNoSuchMethodError(() => sumPlus42(10, 11, 12, y: 13));
-  }
-}
-
-void testWrongTypes() {
-  {
-    dynamic sumPlus42 =
-        ffiTestFunctions.lookupFunction<NativeBinaryOp, BinaryOp>("SumPlus42");
-    Expect.throwsTypeError(() => sumPlus42("abc", "def"));
-  }
-
-  {
-    Function sumPlus42 =
-        ffiTestFunctions.lookupFunction<NativeBinaryOp, BinaryOp>("SumPlus42");
-    Expect.throwsTypeError(() => sumPlus42("abc", "def"));
-  }
-
-  {
-    dynamic pointerOp = ffiTestFunctions
-        .lookupFunction<NativeUnaryOp, UnaryOp>("Assign1337Index1");
-    Expect.throwsTypeError(() => pointerOp(0));
-  }
-}
-
-// Test that invoking 'Pointer.asFunction' with a dynamic receiver type throws
-// an exception.
-void testDynamicAsFunction() {
-  dynamic x = ffi.nullptr.cast<ffi.NativeFunction<ffi.Void Function()>>();
-  Expect.throwsNoSuchMethodError(() {
-    x.asFunction<void Function()>();
-  });
-}
-
-// Test that invoking 'DynamicLibrary.lookupFunction' with a dynamic receiver
-// type throws an exception.
-void testDynamicLookupFunction() {
-  dynamic lib = ffiTestFunctions;
-  Expect.throwsNoSuchMethodError(() {
-    lib.lookupFunction<ffi.Void Function(), void Function()>("_");
-  });
-}
diff --git a/tests/ffi_2/null_regress_39068_test.dart b/tests/ffi_2/null_regress_39068_test.dart
deleted file mode 100644
index de8e7cd71ef..00000000000
--- a/tests/ffi_2/null_regress_39068_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import "dart:ffi";
-
-import "package:expect/expect.dart";
-
-import "dylib_utils.dart";
-
-typedef VigesimalOp = double Function(
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double);
-
-typedef NativeVigesimalOp = Double Function(
-    IntPtr,
-    Float,
-    IntPtr,
-    Double,
-    IntPtr,
-    Float,
-    IntPtr,
-    Double,
-    IntPtr,
-    Float,
-    IntPtr,
-    Double,
-    IntPtr,
-    Float,
-    IntPtr,
-    Double,
-    IntPtr,
-    Float,
-    IntPtr,
-    Double);
-
-main() {
-  final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-
-  final sumManyNumbers = ffiTestFunctions
-      .lookupFunction<NativeVigesimalOp, VigesimalOp>("SumManyNumbers");
-
-  bool gotException = false;
-  try {
-    sumManyNumbers(1, 2.0, 3, 4.0, 5, 6.0, 7, 8.0, 9, 10.0, 11, 12.0, 13, 14.0,
-        15, 16.0, 17, 18.0, null, 20.0);
-  } on Error {
-    gotException = true;
-  }
-  Expect.isTrue(gotException);
-}
diff --git a/tests/ffi_2/null_test.dart b/tests/ffi_2/null_test.dart
deleted file mode 100644
index 75185e96014..00000000000
--- a/tests/ffi_2/null_test.dart
+++ /dev/null
@@ -1,224 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program for testing dart:ffi with null values.
-//
-// Separated into a separate file to make NNBD testing easier.
-//
-// VMOptions=
-// VMOptions=--deterministic --optimization-counter-threshold=90
-// VMOptions=--use-slow-path
-// VMOptions=--use-slow-path --stacktrace-every=100
-// VMOptions=--write-protect-code --no-dual-map-code
-// VMOptions=--write-protect-code --no-dual-map-code --use-slow-path
-// VMOptions=--write-protect-code --no-dual-map-code --stacktrace-every=100
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
-
-import 'dylib_utils.dart';
-import 'ffi_test_helpers.dart';
-
-void main() {
-  for (int i = 0; i < 100; i++) {
-    testPointerStoreNull();
-    testEquality();
-    testNullReceivers();
-    testNullIndices();
-    testNullArguments();
-    testNullInt();
-    testNullDouble();
-    testNullManyArgs();
-    testException();
-    testNullReturnCallback();
-  }
-}
-
-void testPointerStoreNull() {
-  int i = null;
-  Pointer<Int8> p = calloc();
-  Expect.throws(() => p.value = i);
-  calloc.free(p);
-  double d = null;
-  Pointer<Float> p2 = calloc();
-  Expect.throws(() => p2.value = d);
-  calloc.free(p2);
-  Pointer<Void> x = null;
-  Pointer<Pointer<Void>> p3 = calloc();
-  Expect.throws(() => p3.value = x);
-  calloc.free(p3);
-}
-
-void testEquality() {
-  Pointer<Int8> p = Pointer.fromAddress(12345678);
-  Expect.notEquals(p, null);
-  Expect.notEquals(null, p);
-}
-
-/// With extension methods, the receiver position can be null.
-testNullReceivers() {
-  Pointer<Int8> p = calloc();
-
-  Pointer<Int8> p4 = null;
-  Expect.throws(() => Expect.equals(10, p4.value));
-  Expect.throws(() => p4.value = 10);
-
-  Pointer<Pointer<Int8>> p5 = null;
-  Expect.throws(() => Expect.equals(10, p5.value));
-  Expect.throws(() => p5.value = p);
-
-  Pointer<Foo> p6 = null;
-  Expect.throws(() => Expect.equals(10, p6.ref));
-
-  calloc.free(p);
-}
-
-testNullIndices() {
-  Pointer<Int8> p = calloc();
-
-  Expect.throws(() => Expect.equals(10, p[null]));
-  Expect.throws(() => p[null] = 10);
-
-  Pointer<Pointer<Int8>> p5 = p.cast();
-  Expect.throws(() => Expect.equals(10, p5[null]));
-  Expect.throws(() => p5[null] = p);
-
-  Pointer<Foo> p6 = p.cast();
-  Expect.throws(() => Expect.equals(10, p6[null]));
-
-  calloc.free(p);
-}
-
-testNullArguments() {
-  Pointer<Int8> p = calloc();
-  Expect.throws(() => p.value = null);
-  calloc.free(p);
-}
-
-class Foo extends Struct {
-  @Int8()
-  int a;
-}
-
-void testNullInt() {
-  Expect.throws(() => sumPlus42(43, null));
-}
-
-void testNullDouble() {
-  Expect.throws(() => times1_337Double(null));
-}
-
-void testNullManyArgs() {
-  Expect.throws(() => sumManyNumbers(1, 2.0, 3, 4.0, 5, 6.0, 7, 8.0, 9, 10.0,
-      11, 12.0, 13, 14.0, 15, 16.0, 17, 18.0, null, 20.0));
-}
-
-typedef NativeBinaryOp = Int32 Function(Int32, Int32);
-typedef BinaryOp = int Function(int, int);
-
-typedef NativeDoubleUnaryOp = Double Function(Double);
-typedef DoubleUnaryOp = double Function(double);
-
-DoubleUnaryOp times1_337Double = ffiTestFunctions
-    .lookupFunction<NativeDoubleUnaryOp, DoubleUnaryOp>("Times1_337Double");
-
-typedef NativeVigesimalOp = Double Function(
-    IntPtr,
-    Float,
-    IntPtr,
-    Double,
-    IntPtr,
-    Float,
-    IntPtr,
-    Double,
-    IntPtr,
-    Float,
-    IntPtr,
-    Double,
-    IntPtr,
-    Float,
-    IntPtr,
-    Double,
-    IntPtr,
-    Float,
-    IntPtr,
-    Double);
-typedef VigesimalOp = double Function(
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double);
-
-VigesimalOp sumManyNumbers = ffiTestFunctions
-    .lookupFunction<NativeVigesimalOp, VigesimalOp>("SumManyNumbers");
-
-// Throw an exception from within the trampoline and collect a stacktrace
-// include its frame.
-void testException() {
-  try {
-    sumPlus42(null, null);
-  } catch (e, s) {
-    return;
-  }
-  throw "Didn't throw!";
-}
-
-BinaryOp sumPlus42 =
-    ffiTestFunctions.lookupFunction<NativeBinaryOp, BinaryOp>("SumPlus42");
-
-void testNullReturnCallback() {
-  final test =
-      Test("ReturnNull", Pointer.fromFunction<ReturnNullType>(returnNull, 42));
-  test.run();
-}
-
-typedef NativeCallbackTest = Int32 Function(Pointer);
-typedef NativeCallbackTestFn = int Function(Pointer);
-
-final DynamicLibrary testLibrary = dlopenPlatformSpecific("ffi_test_functions");
-
-class Test {
-  final String name;
-  final Pointer callback;
-  final bool skip;
-
-  Test(this.name, this.callback, {bool skipIf: false}) : skip = skipIf {}
-
-  void run() {
-    if (skip) return;
-
-    final NativeCallbackTestFn tester = testLibrary
-        .lookupFunction<NativeCallbackTest, NativeCallbackTestFn>("Test$name");
-    final int testCode = tester(callback);
-    if (testCode != 0) {
-      Expect.fail("Test $name failed.");
-    }
-  }
-}
-
-typedef ReturnNullType = Int32 Function();
-int returnNull() {
-  return null;
-}
diff --git a/tests/ffi_2/prepare_flutter_bundle.dart b/tests/ffi_2/prepare_flutter_bundle.dart
deleted file mode 100644
index 802060bc810..00000000000
--- a/tests/ffi_2/prepare_flutter_bundle.dart
+++ /dev/null
@@ -1,229 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import 'dart:io';
-
-import 'package:path/path.dart' as path;
-
-main(List<String> args) async {
-  if (args.length != 1) {
-    print('Usage ${Platform.executable} ${Platform.script} <output-dir>');
-    exit(1);
-  }
-
-  final sdkRoot =
-      path.canonicalize(path.join(Platform.script.path, '../../..'));
-  final flutterTestsDir = args.single;
-
-  print('Using SDK root: $sdkRoot');
-  final testFiles = <String>[];
-  final failedOrTimedOut = <String>[];
-  final filteredTests = <String>[];
-  await for (final testFile in listTestFiles(sdkRoot, filteredTests)) {
-    final duration = await run(sdkRoot, testFile);
-    if (duration != null && duration.inSeconds < 5) {
-      testFiles.add(testFile);
-    } else {
-      failedOrTimedOut.add(testFile);
-    }
-  }
-  testFiles.sort();
-  failedOrTimedOut.sort();
-  filteredTests.sort();
-
-  dumpTestList(testFiles, 'The following tests will be included:');
-  dumpTestList(failedOrTimedOut,
-      'The following tests will be excluded due to timeout or test failure:');
-  dumpTestList(
-      filteredTests,
-      'The following tests were filtered due to using '
-      'dart_api.h/async/DynamicLibrary.{process,executable}/...');
-
-  final allFiles = <String>{};
-  allFiles.add(path.join(sdkRoot, 'pkg/expect/lib/expect.dart'));
-  for (final testFile in testFiles) {
-    allFiles.add(testFile);
-    await addImportedFilesTo(allFiles, testFile);
-  }
-
-  await generateCleanDir(flutterTestsDir);
-
-  final dartTestsDirRelative = 'example/lib';
-  final dartTestsDir = path.join(flutterTestsDir, dartTestsDirRelative);
-  await generateDartTests(dartTestsDir, allFiles, testFiles);
-
-  final ccDirRelative = 'ios/Classes';
-  final ccDir = path.join(flutterTestsDir, ccDirRelative);
-  await generateCLibs(sdkRoot, ccDir, allFiles, testFiles);
-
-  print('''
-
-Files generated in:
-  * $dartTestsDir
-  * $ccDir
-
-Generate flutter test application with:
-  flutter create --platforms=android,ios --template=plugin <ffi_test_app_name>
-
-Please copy generated files into FFI flutter test application:
-  cd <ffi_test_app_dir> && cp -r $flutterTestsDir ./
-
-After copying modify the test application:
-  * Modify example/pubspec.yaml to depend on package:ffi.
-  * Modify example/lib/main.dart to invoke all.dart while rendering.
-  * Open example/ios/Runner.xcworkspace in Xcode.
-    * Add the cpp files to Pods/Development Pods/<deep nesting>/ios/Classes
-      to ensure they are statically linked to the app.
-''');
-}
-
-void dumpTestList(List<String> testFiles, String message) {
-  if (testFiles.isEmpty) return;
-
-  print(message);
-  for (final testFile in testFiles) {
-    print('  ${path.basename(testFile)}');
-  }
-}
-
-final importRegExp = RegExp(r'''^import.*['"](.+)['"].*;''');
-
-Future addImportedFilesTo(Set<String> allFiles, String testFile) async {
-  final content = await File(testFile).readAsString();
-  for (final line in content.split('\n')) {
-    final match = importRegExp.matchAsPrefix(line);
-    if (match != null) {
-      final filename = match.group(1);
-      if (!filename.contains('dart:') &&
-          !filename.contains('package:expect') &&
-          !filename.contains('package:ffi')) {
-        final importedFile = Uri.file(testFile).resolve(filename).toFilePath();
-        if (allFiles.add(importedFile)) {
-          addImportedFilesTo(allFiles, importedFile);
-        }
-      }
-    }
-  }
-}
-
-Future generateCLibs(String sdkRoot, String destDir, Set<String> allFiles,
-    List<String> testFiles) async {
-  final dir = await generateCleanDir(destDir);
-
-  String destinationFile;
-
-  final lib1 =
-      path.join(sdkRoot, 'runtime/bin/ffi_test/ffi_test_dynamic_library.cc');
-  destinationFile =
-      path.join(dir.path, path.basename(lib1)).replaceAll('.cc', '.cpp');
-  File(destinationFile).writeAsStringSync(File(lib1).readAsStringSync());
-
-  final lib2 = path.join(sdkRoot, 'runtime/bin/ffi_test/ffi_test_functions.cc');
-  destinationFile =
-      path.join(dir.path, path.basename(lib2)).replaceAll('.cc', '.cpp');
-  File(destinationFile).writeAsStringSync(File(lib2).readAsStringSync());
-
-  final lib3 = path.join(
-      sdkRoot, 'runtime/bin/ffi_test/ffi_test_functions_generated.cc');
-  destinationFile =
-      path.join(dir.path, path.basename(lib3)).replaceAll('.cc', '.cpp');
-  File(destinationFile).writeAsStringSync(File(lib3).readAsStringSync());
-}
-
-String cleanDart(String content) {
-  return content.replaceAll('package:expect/expect.dart', 'expect.dart');
-}
-
-Future generateDartTests(
-    String destDir, Set<String> allFiles, List<String> testFiles) async {
-  final dir = await generateCleanDir(destDir);
-
-  final sink = File(path.join(dir.path, 'all.dart')).openWrite();
-  sink.writeln('import "dart:async";');
-  sink.writeln('');
-  for (int i = 0; i < testFiles.length; ++i) {
-    sink.writeln('import "${path.basename(testFiles[i])}" as main$i;');
-  }
-  sink.writeln('');
-  sink.writeln('Future invoke(dynamic fun) async {');
-  sink.writeln('  if (fun is void Function() || fun is Future Function()) {');
-  sink.writeln('    return await fun();');
-  sink.writeln('  } else {');
-  sink.writeln('    return await fun(<String>[]);');
-  sink.writeln('  }');
-  sink.writeln('}');
-  sink.writeln('');
-  sink.writeln('dynamic main() async {');
-  for (int i = 0; i < testFiles.length; ++i) {
-    sink.writeln('  await invoke(main$i.main);');
-  }
-  sink.writeln('}');
-  await sink.close();
-
-  for (final file in allFiles) {
-    File(path.join(dir.path, path.basename(file)))
-        .writeAsStringSync(cleanDart(File(file).readAsStringSync()));
-  }
-
-  File(path.join(dir.path, 'dylib_utils.dart')).writeAsStringSync('''
-import 'dart:ffi' as ffi;
-import 'dart:io' show Platform;
-
-ffi.DynamicLibrary dlopenPlatformSpecific(String name, {String path}) {
-  return Platform.isAndroid
-      ? ffi.DynamicLibrary.open('libffi_tests.so')
-      : ffi.DynamicLibrary.process();
-}
-''');
-}
-
-Stream<String> listTestFiles(
-    String sdkRoot, List<String> filteredTests) async* {
-  await for (final file
-      in Directory(path.join(sdkRoot, 'tests/ffi_2')).list()) {
-    if (file is File && file.path.endsWith('_test.dart')) {
-      // These tests are VM specific and cannot necessarily be run on Flutter.
-      if (path.basename(file.path).startsWith('vmspecific_')) {
-        filteredTests.add(file.path);
-        continue;
-      }
-      // These tests use special features which are hard to test on Flutter.
-      final contents = file.readAsStringSync();
-      if (contents.contains(RegExp('//# .* compile-time error')) ||
-          contents.contains('DynamicLibrary.process') ||
-          contents.contains('DynamicLibrary.executable')) {
-        filteredTests.add(file.path);
-        continue;
-      }
-      yield file.path;
-    }
-  }
-}
-
-Future<Duration> run(String sdkRoot, String testFile) async {
-  final env = Map<String, String>.from(Platform.environment);
-  env['LD_LIBRARY_PATH'] = path.join(sdkRoot, 'out/ReleaseX64');
-  final sw = Stopwatch()..start();
-  final Process process = await Process.start(
-      Platform.executable, <String>[testFile],
-      environment: env);
-  final timer = Timer(const Duration(seconds: 3), () => process.kill());
-  process.stdout.listen((_) {});
-  process.stderr.listen((_) {});
-  if (await process.exitCode != 0) return null;
-  timer.cancel();
-  return sw.elapsed;
-}
-
-Future<Directory> generateCleanDir(String dirname) async {
-  final directory = Directory(dirname);
-  if (await directory.exists()) {
-    await directory.delete(recursive: true);
-  }
-  await directory.create(recursive: true);
-  return directory;
-}
diff --git a/tests/ffi_2/regress_37254_test.dart b/tests/ffi_2/regress_37254_test.dart
deleted file mode 100644
index f5a92ee8a61..00000000000
--- a/tests/ffi_2/regress_37254_test.dart
+++ /dev/null
@@ -1,250 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// This program tests interaction with generic Pointers.
-//
-// Notation used in following tables:
-// * static_type//dynamic_type
-// * P = Pointer
-// * I = Int8
-// * NT = NativeType
-//
-// Note #1: When NNBD is landed, implicit downcasts will be static errors.
-//
-// Note #2: When we switch to extension methods we will _only_ use the static
-//          type of the container.
-//
-// ===== a.value = b ======
-// Does a.value = b, where a and b have specific static and dynamic types: run
-// fine, fail at compile time, or fail at runtime?
-// =======================
-//                  b     P<I>//P<I>   P<NT>//P<I>           P<NT>//P<NT>
-// a
-// P<P<I>>//P<P<I>>     1 ok         2 implicit downcast   3 implicit downcast
-//                                     of argument:          of argument:
-//                                     static error          static error
-//
-// P<P<NT>>//P<P<I>>    4 ok         5 ok                  6 fail at runtime
-//
-// P<P<NT>>//P<P<NT>>   7 ok         8 ok                  9 ok
-//
-// ====== final c = a.value ======
-// What is the (inferred) static type and runtime type of `a.value`. Note that
-// we assume extension method here: on Pointer<PointerT>> { Pointer<T> load(); }
-// ================================
-// a                    a.value
-//                      inferred static type*//runtime type
-// P<P<I>>//P<P<I>>     P<I>//P<I>
-//
-// P<P<NT>>//P<P<I>>    P<NT>//P<I>
-//
-// P<P<NT>>//P<P<NT>>   P<NT>//P<NT>
-//
-// * The inferred static type when we get extension methods.
-//
-// ====== b = a.value ======
-// What happens when we try to assign the result of a.value to variable b with
-// a specific static type: runs fine, fails at compile time, or fails at runtime.
-// ==========================
-//                  b     P<I>                        P<NT>
-// a
-// P<P<I>>//P<P<I>>     1 ok                        2 ok
-//
-// P<P<NT>>//P<P<I>>    3 implicit downcast         4 ok
-//                        of returnvalue: ok
-//
-// P<P<NT>>//P<P<NT>>   5 implicit downcast         6 ok
-//                        of returnvalue: fail
-//                        at runtime
-//
-// These are the normal Dart assignment rules.
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
-
-// ===== a.value = b ======
-// The tests follow table cells left to right, top to bottom.
-void store1() {
-  final Pointer<Pointer<Int8>> a = calloc<Pointer<Int8>>();
-  final Pointer<Int8> b = calloc<Int8>();
-
-  a.value = b;
-
-  calloc.free(a);
-  calloc.free(b);
-}
-
-void store2() {
-  final Pointer<Pointer<Int8>> a = calloc<Pointer<Int8>>();
-  final Pointer<NativeType> b =
-      calloc<Int8>(); // Reified Pointer<Int8> at runtime.
-
-  // Successful implicit downcast of argument at runtime.
-  // Should succeed now, should statically be rejected when NNBD lands.
-  a.value = b;
-
-  calloc.free(a);
-  calloc.free(b);
-}
-
-void store3() {
-  final Pointer<Pointer<Int8>> a = calloc<Pointer<Int8>>();
-  final Pointer<NativeType> b = calloc<Int8>().cast<Pointer<NativeType>>();
-
-  // Type arguments are not reified.
-  a.value = b;
-
-  calloc.free(a);
-  calloc.free(b);
-}
-
-void store4() {
-  // Type arguments are not reified.
-  final Pointer<Pointer<NativeType>> a = calloc<Pointer<Int8>>();
-
-  final Pointer<Int8> b = calloc<Int8>();
-
-  a.value = b;
-
-  calloc.free(a);
-  calloc.free(b);
-}
-
-void store5() {
-  // Type arguments are not reified.
-  final Pointer<Pointer<NativeType>> a = calloc<Pointer<Int8>>();
-  final Pointer<NativeType> b = calloc<Int8>();
-
-  a.value = b;
-
-  calloc.free(a);
-  calloc.free(b);
-}
-
-void store6() {
-  // Reified as Pointer<Pointer<Int8>> at runtime.
-  final Pointer<Pointer<NativeType>> a = calloc<Pointer<Int8>>();
-  final Pointer<NativeType> b = calloc<Int8>().cast<Pointer<NativeType>>();
-
-  // Type arguments are not reified.
-  a.value = b;
-
-  calloc.free(a);
-  calloc.free(b);
-}
-
-void store7() {
-  final Pointer<Pointer<NativeType>> a = calloc<Pointer<NativeType>>();
-  final Pointer<Int8> b = calloc<Int8>();
-
-  a.value = b;
-
-  calloc.free(a);
-  calloc.free(b);
-}
-
-void store8() {
-  final Pointer<Pointer<NativeType>> a = calloc<Pointer<NativeType>>();
-
-  // Reified as Pointer<Int8> at runtime.
-  final Pointer<NativeType> b = calloc<Int8>();
-
-  a.value = b;
-
-  calloc.free(a);
-  calloc.free(b);
-}
-
-void store9() {
-  final Pointer<Pointer<NativeType>> a = calloc<Pointer<NativeType>>();
-  final Pointer<NativeType> b = calloc<Int8>().cast<Pointer<NativeType>>();
-
-  a.value = b;
-
-  calloc.free(a);
-  calloc.free(b);
-}
-
-// ====== b = a.value ======
-// The tests follow table cells left to right, top to bottom.
-void load1() {
-  final Pointer<Pointer<Int8>> a = calloc<Pointer<Int8>>();
-
-  Pointer<Int8> b = a.value;
-  Expect.type<Pointer<Int8>>(b);
-
-  calloc.free(a);
-}
-
-void load2() {
-  final Pointer<Pointer<Int8>> a = calloc<Pointer<Int8>>();
-
-  Pointer<NativeType> b = a.value;
-  Expect.type<Pointer<Int8>>(b);
-
-  calloc.free(a);
-}
-
-void load3() {
-  // Reified as Pointer<Pointer<Int8>> at runtime.
-  final Pointer<Pointer<NativeType>> a = calloc<Pointer<Int8>>();
-
-  Pointer<Int8> b = a.value;
-  Expect.type<Pointer<Int8>>(b);
-
-  calloc.free(a);
-}
-
-void load4() {
-  // Reified as Pointer<Pointer<Int8>> at runtime.
-  final Pointer<Pointer<NativeType>> a = calloc<Pointer<Int8>>();
-
-  // Return value runtime type is Pointer<Int8>.
-  Pointer<NativeType> b = a.value;
-  Expect.type<Pointer<Int8>>(b);
-
-  calloc.free(a);
-}
-
-void load5() {
-  final Pointer<Pointer<NativeType>> a = calloc<Pointer<NativeType>>();
-
-  // Type arguments are not reified.
-  Pointer<Int8> b = a.value;
-
-  calloc.free(a);
-}
-
-void load6() {
-  final Pointer<Pointer<NativeType>> a = calloc<Pointer<NativeType>>();
-
-  Pointer<NativeType> b = a.value;
-  Expect.type<Pointer<NativeType>>(b);
-
-  calloc.free(a);
-}
-
-void main() {
-  for (int i = 0; i < 100; i++) {
-    store1();
-    store2();
-    store3();
-    store4();
-    store5();
-    store6();
-    store7();
-    store8();
-    store9();
-    load1();
-    load2();
-    load3();
-    load4();
-    load5();
-    load6();
-  }
-}
diff --git a/tests/ffi_2/regress_39044_test.dart b/tests/ffi_2/regress_39044_test.dart
deleted file mode 100644
index 38345935dab..00000000000
--- a/tests/ffi_2/regress_39044_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Check that the optimizer does not fuse constants with different
-// representations.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import "dart:ffi";
-
-import "package:expect/expect.dart";
-
-import "dylib_utils.dart";
-
-main() {
-  final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-
-  final intComputation = ffiTestFunctions.lookupFunction<
-      Int64 Function(Int64, Int8), int Function(int, int)>("Regress39044");
-
-  // The arguments are the same Smi constant, however they are different sizes.
-  final result = intComputation(
-      /* dart::kUnboxedInt64 --> int64_t             */ 1,
-      /* dart::kUnboxedInt32 --> truncated to int8_t */ 1);
-
-  Expect.equals(0, result);
-}
diff --git a/tests/ffi_2/regress_39063_test.dart b/tests/ffi_2/regress_39063_test.dart
deleted file mode 100644
index e8c9570175c..00000000000
--- a/tests/ffi_2/regress_39063_test.dart
+++ /dev/null
@@ -1,69 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Check that the optimizer does not fuse constants with different
-// representations.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import "dart:ffi";
-
-import "dylib_utils.dart";
-
-typedef VigesimalOp = double Function(
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double,
-    int,
-    double);
-
-typedef NativeVigesimalOp = Double Function(
-    IntPtr,
-    Float,
-    IntPtr,
-    Double,
-    IntPtr,
-    Float,
-    IntPtr,
-    Double,
-    IntPtr,
-    Float,
-    IntPtr,
-    Double,
-    IntPtr,
-    Float,
-    IntPtr,
-    Double,
-    IntPtr,
-    Float,
-    IntPtr,
-    Double);
-
-main() {
-  final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-
-  final sumManyNumbers = ffiTestFunctions
-      .lookupFunction<NativeVigesimalOp, VigesimalOp>("SumManyNumbers");
-
-  // Should not crash.
-  sumManyNumbers(1, 2.0, 3, 4.0, 5, 6.0, 7, 8.0, 9, 10.0, 11, 12.0, 13, 14.0,
-      15, 16.0, 17, 18.0, 19, 20.0);
-}
diff --git a/tests/ffi_2/regress_39885_test.dart b/tests/ffi_2/regress_39885_test.dart
deleted file mode 100644
index 14911677815..00000000000
--- a/tests/ffi_2/regress_39885_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:ffi/ffi.dart";
-
-main() {
-  final data = calloc<Uint8>(3);
-  for (int i = 0; i < 3; ++i) {
-    data.elementAt(i).value = 1;
-  }
-  calloc.free(data);
-}
diff --git a/tests/ffi_2/regress_40537_test.dart b/tests/ffi_2/regress_40537_test.dart
deleted file mode 100644
index bb5eb583202..00000000000
--- a/tests/ffi_2/regress_40537_test.dart
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Truncation and sign extension of small ints, tested with something else than
-// equality.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-
-import "dylib_utils.dart";
-
-main() {
-  variant1Negative();
-  variant1Positive();
-  variant2Negative();
-  variant2Positive();
-  variant3Negative();
-}
-
-/// `return x == 249 ? 1 : 0`.
-///
-/// This doesn't catch the error.
-final regress40537 = ffiTestFunctions
-    .lookupFunction<IntPtr Function(Uint8), int Function(int)>("Regress40537");
-
-variant1Negative() {
-  // 0xF9 =  -7 in 2s complement.
-  // 0xF9 = 249 in unsigned.
-  final result = regress40537(-7);
-  print(result);
-  Expect.equals(1, result);
-}
-
-variant1Positive() {
-  // 0xF9 = 249 in unsigned.
-  final result = regress40537(0xFFFFFFF9);
-  print(result);
-  Expect.equals(1, result);
-}
-
-/// `return x`.
-///
-/// This does.
-final regress40537Variant2 =
-    ffiTestFunctions.lookupFunction<IntPtr Function(Uint8), int Function(int)>(
-        "Regress40537Variant2");
-
-variant2Negative() {
-  // The 32 bit representation of -7 is 0xFFFFFFF9.
-  // Only the lowest byte, 0xF9, should be interpreted by calling convention,
-  // or it should be truncated and zero extended before calling.
-  final result = regress40537Variant2(-7);
-  print(result);
-  Expect.equals(249, result);
-}
-
-variant2Positive() {
-  // Only the lowest byte, 0xF9, should be interpreted by calling convention,
-  // or it should be truncated and zero extended before calling.
-  final result = regress40537Variant2(0xFFFFFFF9);
-  print(result);
-  Expect.equals(249, result);
-}
-
-/// `return x`.
-final regress40537Variant3 =
-    ffiTestFunctions.lookupFunction<Uint8 Function(IntPtr), int Function(int)>(
-        "Regress40537Variant3");
-
-variant3Negative() {
-  // This really passes -7 its intptr_t.
-  final result = regress40537Variant3(-7);
-  print(result);
-  Expect.equals(249, result);
-}
-
-final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
diff --git a/tests/ffi_2/regress_43016_test.dart b/tests/ffi_2/regress_43016_test.dart
deleted file mode 100644
index c1927c99be9..00000000000
--- a/tests/ffi_2/regress_43016_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// SharedObjects=ffi_test_functions
-//
-// VMOptions=--optimization-counter-threshold=200
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import 'dylib_utils.dart';
-
-class MyStruct extends Struct {
-  @Int8()
-  int a;
-}
-
-typedef _c_pass_struct = Int32 Function(Pointer<MyStruct> arg0);
-
-typedef _dart_pass_struct = int Function(Pointer<MyStruct> arg0);
-
-int pass_struct(Pointer<MyStruct> arg0) {
-  _pass_struct ??= ffiTestFunctions
-      .lookupFunction<_c_pass_struct, _dart_pass_struct>('PassStruct');
-  return _pass_struct(arg0);
-}
-
-_dart_pass_struct _pass_struct;
-
-final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-
-void main() {
-  for (int i = 0; i < 10000; i++) {
-    pass_struct(nullptr);
-  }
-}
diff --git a/tests/ffi_2/regress_43693_test.dart b/tests/ffi_2/regress_43693_test.dart
deleted file mode 100644
index 47e71f5976a..00000000000
--- a/tests/ffi_2/regress_43693_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import 'package:ffi/ffi.dart';
-import 'package:expect/expect.dart';
-
-import 'dylib_utils.dart';
-
-class Struct43693 extends Struct {
-  Pointer<Void> somePtr;
-
-  @Uint64()
-  int someValue;
-}
-
-final int Function(Pointer<Struct43693>) readMyStructSomeValue =
-    ffiTestFunctions
-        .lookup<NativeFunction<Uint64 Function(Pointer<Struct43693>)>>(
-            "Regress43693")
-        .asFunction<int Function(Pointer<Struct43693>)>();
-
-final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-
-void main() {
-  final myStructs = calloc<Struct43693>();
-  myStructs[0].somePtr = nullptr;
-  myStructs[0].someValue = 0xAAAAAAAABBBBBBBB;
-  final result = readMyStructSomeValue(myStructs);
-  Expect.equals(0xAAAAAAAABBBBBBBB, result);
-  calloc.free(myStructs);
-}
diff --git a/tests/ffi_2/regress_44985_test.dart b/tests/ffi_2/regress_44985_test.dart
deleted file mode 100644
index 50fbbef5813..00000000000
--- a/tests/ffi_2/regress_44985_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:ffi";
-
-class S2 extends Struct {
-  Pointer<Int8> notEmpty;
-
-  Struct s; //# 01: compile-time error
-}
-
-void main() {
-  S2 s2;
-}
diff --git a/tests/ffi_2/regress_44986_test.dart b/tests/ffi_2/regress_44986_test.dart
deleted file mode 100644
index ab3bac83d3c..00000000000
--- a/tests/ffi_2/regress_44986_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:ffi";
-
-class S2 extends Struct {
-  Pointer<Int8> notEmpty;
-
-  Null s; //# 01: compile-time error
-}
-
-void main() {
-  S2 s2;
-}
diff --git a/tests/ffi_2/regress_45189_test.dart b/tests/ffi_2/regress_45189_test.dart
deleted file mode 100644
index 72ac798cd22..00000000000
--- a/tests/ffi_2/regress_45189_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:ffi";
-
-import "package:ffi/ffi.dart";
-import 'package:expect/expect.dart';
-
-class Struct8BytesInlineArrayInt extends Struct {
-  @Array(8)
-  Array<Uint8> a0;
-}
-
-void main() {
-  final pointer = calloc<Struct8BytesInlineArrayInt>();
-  final array = pointer.ref.a0;
-  try {
-    array[8]; // RangeError: Invalid value: Not in inclusive range 0..8: 8
-  } on RangeError catch (exception) {
-    final toString = exception.toString();
-    Expect.equals(
-        "RangeError: Invalid value: Not in inclusive range 0..7: 8", toString);
-  }
-  calloc.free(pointer);
-}
diff --git a/tests/ffi_2/regress_45198_test.dart b/tests/ffi_2/regress_45198_test.dart
deleted file mode 100644
index 49fdc26d651..00000000000
--- a/tests/ffi_2/regress_45198_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:ffi";
-
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
-
-class Struct8BytesInlineArrayInt extends Struct {
-  @Array(2)
-  Array<Pointer<Int8>> a0;
-}
-
-void main() {
-  final arrayPointer = calloc<Struct8BytesInlineArrayInt>();
-
-  final pointer = Pointer<Int8>.fromAddress(0xdeadbeef);
-
-  final array = arrayPointer.ref.a0;
-  print(arrayPointer);
-  print(array);
-  Expect.type<Array<Pointer<Int8>>>(array);
-  Expect.equals(nullptr, array[0]);
-  array[0] = pointer;
-  Expect.equals(pointer, array[0]);
-
-  calloc.free(arrayPointer);
-}
diff --git a/tests/ffi_2/regress_45507_test.dart b/tests/ffi_2/regress_45507_test.dart
deleted file mode 100644
index d126d4e97ac..00000000000
--- a/tests/ffi_2/regress_45507_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:ffi";
-
-import "package:expect/expect.dart";
-
-const EIGHT = 8;
-
-class Struct8BytesInlineArrayInt extends Struct {
-  @Array(EIGHT)
-  Array<Uint8> a0;
-}
-
-void main() {
-  Expect.equals(8, sizeOf<Struct8BytesInlineArrayInt>());
-}
diff --git a/tests/ffi_2/regress_45988_test.dart b/tests/ffi_2/regress_45988_test.dart
deleted file mode 100644
index bcb6f4e24d6..00000000000
--- a/tests/ffi_2/regress_45988_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
-
-class DartValueFields extends Union {
-  Pointer p1;
-  Pointer p2;
-  Pointer p3;
-  Pointer p4;
-}
-
-void main() {
-  final p = calloc<DartValueFields>();
-  Expect.equals(0, p.ref.p4.address);
-  calloc.free(p);
-}
diff --git a/tests/ffi_2/regress_46004_test.dart b/tests/ffi_2/regress_46004_test.dart
deleted file mode 100644
index 90d8963e3ce..00000000000
--- a/tests/ffi_2/regress_46004_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
-
-class COMObject extends Struct {
-  Pointer<IntPtr> lpVtbl;
-
-  // This should not be interpreted as a native field.
-  Pointer<IntPtr> get vtable => Pointer.fromAddress(lpVtbl.value);
-}
-
-void main() {
-  Expect.equals(sizeOf<Pointer>(), sizeOf<COMObject>());
-
-  final comObjectPointer = calloc<COMObject>();
-  final vTablePointer = calloc<IntPtr>();
-  vTablePointer.value = 1234;
-  final comObject = comObjectPointer.ref;
-  comObject.lpVtbl = vTablePointer;
-  Expect.equals(1234, comObject.vtable.address);
-  calloc.free(comObjectPointer);
-  calloc.free(vTablePointer);
-}
diff --git a/tests/ffi_2/regress_46085_test.dart b/tests/ffi_2/regress_46085_test.dart
deleted file mode 100644
index 8ef31548e5b..00000000000
--- a/tests/ffi_2/regress_46085_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:ffi";
-
-class MyStruct extends Struct {
-  Pointer<Int8> notEmpty;
-
-  @Array.multi([]) //# 01: compile-time error
-  Array<Int16> a0; //# 01: compile-time error
-
-  @Array.multi([1]) //# 02: compile-time error
-  Array<Array<Int16>> a1; //# 02: compile-time error
-}
-
-void main() {
-  MyStruct ms = null;
-}
diff --git a/tests/ffi_2/regress_46127_test.dart b/tests/ffi_2/regress_46127_test.dart
deleted file mode 100644
index b3f5b276bd8..00000000000
--- a/tests/ffi_2/regress_46127_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// SharedObjects=ffi_test_functions
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-
-import 'dylib_utils.dart';
-
-final nativeLib = dlopenPlatformSpecific("ffi_test_functions");
-
-class Struct46127 extends Struct {
-  @Uint64()
-  int val;
-}
-
-void main() {
-  final struct =
-      nativeLib.lookupFunction<Struct46127 Function(), Struct46127 Function()>(
-          'Regress46127')();
-  Expect.equals(123, struct.val);
-}
diff --git a/tests/ffi_2/regress_47594_test.dart b/tests/ffi_2/regress_47594_test.dart
deleted file mode 100644
index 623b77f32e7..00000000000
--- a/tests/ffi_2/regress_47594_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Regression test for http://dartbug.com/47594.
-// FFI leaf calls did not mark the thread for the transition and would cause
-// the stack walker to segfault when it was unable to interpret the frame.
-//
-// VMOptions=--deterministic --enable-vm-service=0 --profiler --disable-dart-dev
-
-import 'dart:ffi';
-
-import 'package:ffi/ffi.dart';
-
-final strerror = DynamicLibrary.process()
-    .lookupFunction<Pointer<Utf8> Function(Int32), Pointer<Utf8> Function(int)>(
-        'strerror',
-        isLeaf: true);
-
-void main() {
-  for (var i = 0; i < 10000; i++) strerror(0).toDartString();
-}
diff --git a/tests/ffi_2/regress_47673_2_test.dart b/tests/ffi_2/regress_47673_2_test.dart
deleted file mode 100644
index 2258af8a140..00000000000
--- a/tests/ffi_2/regress_47673_2_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart=2.9
-
-import 'dart:ffi';
-
-class A extends Struct {
-  @Array.multi([16])
-  Array<Int8> a;
-
-  // This should not crash the FFI transform.
-  @Array.multi([16]) //# 1: compile-time error
-  Array<Unknown> b; //# 1: compile-time error
-}
-
-main() {}
diff --git a/tests/ffi_2/regress_47673_test.dart b/tests/ffi_2/regress_47673_test.dart
deleted file mode 100644
index 9044ed5c670..00000000000
--- a/tests/ffi_2/regress_47673_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart=2.9
-
-import 'dart:ffi';
-
-typedef T = Int64; //# 1: compile-time error
-
-class A extends Struct {
-  @Array.multi([16])
-  Array<Int8> a;
-
-  // In language version 2.12 we do not support non-function typedefs.
-  // This should not crash the FFI transform.
-  @Array.multi([16]) //# 1: compile-time error
-  Array<T> b; //# 1: compile-time error
-}
-
-main() {}
diff --git a/tests/ffi_2/regress_49402_test.dart b/tests/ffi_2/regress_49402_test.dart
deleted file mode 100644
index e9a71ba7512..00000000000
--- a/tests/ffi_2/regress_49402_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart=2.9
-
-import 'dart:ffi';
-
-class A implements Finalizable {}
-
-void b([A a]) {}
-
-void main() {
-  b();
-}
diff --git a/tests/ffi_2/regress_51315_test.dart b/tests/ffi_2/regress_51315_test.dart
deleted file mode 100644
index 8706539333d..00000000000
--- a/tests/ffi_2/regress_51315_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart=2.9
-
-// VMOptions=--deterministic --optimization-counter-threshold=100
-
-import 'dart:ffi';
-
-import "package:ffi/ffi.dart";
-
-main(List<String> arguments) {
-  for (int i = 0; i < 1000; i++) {
-    testCompoundLoadAndStore();
-  }
-  print('done');
-}
-
-const count = 10;
-
-testCompoundLoadAndStore() {
-  final foos = calloc<Foo>(count);
-  final reference = foos.ref;
-  reference.a = count;
-
-  for (var j = 1; j < count; j++) {
-    final foo = foos.elementAt(j);
-    foo.ref = reference;
-  }
-
-  calloc.free(foos);
-}
-
-class Foo extends Struct {
-  @Int8()
-  int a;
-}
diff --git a/tests/ffi_2/regress_b_261224444_test.dart b/tests/ffi_2/regress_b_261224444_test.dart
deleted file mode 100644
index 44524fab014..00000000000
--- a/tests/ffi_2/regress_b_261224444_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart=2.9
-
-import 'dart:ffi';
-
-import 'ffi_test_helpers.dart';
-
-main() {
-  // Ensure we have FfiTrampolineData in heap.
-  final malloc = DynamicLibrary.process()
-      .lookup<NativeFunction<Pointer<Void> Function(IntPtr)>>("malloc")
-      .asFunction<Pointer<Void> Function(int)>();
-  print(malloc);
-
-  triggerGc();
-
-  final pointer = malloc(100);
-
-  print(pointer.address);
-
-  final free = DynamicLibrary.process()
-      .lookupFunction<Void Function(Pointer), void Function(Pointer)>('free');
-  free(pointer);
-}
diff --git a/tests/ffi_2/regress_flutter79441_test.dart b/tests/ffi_2/regress_flutter79441_test.dart
deleted file mode 100644
index 2bce29c8fc1..00000000000
--- a/tests/ffi_2/regress_flutter79441_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for https://github.com/flutter/flutter/issues/79441.
-
-import 'dart:ffi';
-
-// FFI signature
-typedef _dart_memset = void Function(Pointer<Uint8>, int, int);
-typedef _c_memset = Void Function(Pointer<Uint8>, Int32, IntPtr);
-
-_dart_memset fbMemset;
-
-void _fallbackMemset(Pointer<Uint8> ptr, int byte, int size) {
-  final bytes = ptr.cast<Uint8>();
-  for (var i = 0; i < size; i++) {
-    bytes[i] = byte;
-  }
-}
-
-void main() {
-  try {
-    fbMemset = DynamicLibrary.process()
-        .lookupFunction<_c_memset, _dart_memset>('memset');
-  } catch (_) {
-    // This works:
-    // fbMemset = _fallbackMemset;
-
-    // This doesn't: /aot/precompiler.cc: 2761: error: unreachable code
-    fbMemset = (Pointer<Uint8> ptr, int byte, int size) {
-      final bytes = ptr.cast<Uint8>();
-      for (var i = 0; i < size; i++) {
-        bytes[i] = byte;
-      }
-    };
-  }
-}
diff --git a/tests/ffi_2/regress_flutter97301_test.dart b/tests/ffi_2/regress_flutter97301_test.dart
deleted file mode 100644
index 83f97c769b3..00000000000
--- a/tests/ffi_2/regress_flutter97301_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Verifies that there are no deoptimizing IntConverter instructions
-// used when converting Pointer to TypedData.
-// Regression test for https://github.com/flutter/flutter/issues/97301.
-
-// @dart = 2.9
-
-import "dart:ffi";
-import "package:ffi/ffi.dart";
-
-@pragma("vm:never-inline")
-Pointer<Uint32> foo() => calloc(4);
-
-main() {
-  final Pointer<Uint32> offsetsPtr = foo();
-
-  for (var i = 0; i < 2; i++) {
-    print(offsetsPtr.asTypedList(1));
-  }
-
-  calloc.free(offsetsPtr);
-}
diff --git a/tests/ffi_2/regress_jump_to_frame_test.dart b/tests/ffi_2/regress_jump_to_frame_test.dart
deleted file mode 100644
index 7ff59f8c7c4..00000000000
--- a/tests/ffi_2/regress_jump_to_frame_test.dart
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that JumpToFrame does not use LR clobbered by slow path of
-// TransitionNativeToGenerated.
-// VMOptions=--use-slow-path
-
-import 'dart:ffi';
-
-import 'package:ffi/ffi.dart';
-import 'package:expect/expect.dart';
-
-typedef CallbackDartType = Object Function();
-typedef CallbackNativeType = Handle Function();
-
-Object alwaysThrows() {
-  throw 'exception';
-}
-
-void alwaysCatches(CallbackDartType f) {
-  try {
-    propagateError(f());
-  } catch (e) {
-    Expect.equals('exception', e);
-    return;
-  }
-  Expect.isTrue(false);
-}
-
-void main() {
-  final ptr = Pointer.fromFunction<CallbackNativeType>(alwaysThrows);
-  final f = ptr.asFunction<CallbackDartType>();
-  alwaysCatches(f);
-}
-
-typedef Dart_PropagateError_NativeType = Void Function(Handle);
-typedef Dart_PropagateError_DartType = void Function(Object);
-
-final Dart_PropagateError_DartType propagateError = () {
-  final Pointer<_DartApi> dlapi = NativeApi.initializeApiDLData.cast();
-  for (int i = 0; dlapi.ref.functions[i].name != nullptr; i++) {
-    final name = dlapi.ref.functions[i].name.cast<Utf8>().toDartString();
-    if (name == 'Dart_PropagateError') {
-      return dlapi.ref.functions[i].function
-          .cast<NativeFunction<Dart_PropagateError_NativeType>>()
-          .asFunction<Dart_PropagateError_DartType>();
-    }
-  }
-  throw 'Not found';
-}();
-
-class _DartEntry extends Struct {
-  Pointer<Int8> name;
-  Pointer<Void> function;
-}
-
-class _DartApi extends Struct {
-  @Int32()
-  int major;
-  @Int32()
-  int minor;
-  Pointer<_DartEntry> functions;
-}
diff --git a/tests/ffi_2/sizeof_test.dart b/tests/ffi_2/sizeof_test.dart
deleted file mode 100644
index ec65d593c82..00000000000
--- a/tests/ffi_2/sizeof_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-
-import "coordinate.dart";
-
-get is32Bit => 4 == sizeOf<IntPtr>();
-get is64Bit => 8 == sizeOf<IntPtr>();
-
-void main() async {
-  if (is32Bit) {
-    Expect.equals(4, sizeOf<Pointer>());
-    // Struct is 20 bytes on ia32 and arm32-iOS, but 24 bytes on arm32-Android
-    // and arm32-Linux due to alignment.
-    Expect.isTrue(20 == sizeOf<Coordinate>() || 24 == sizeOf<Coordinate>());
-  } else if (is64Bit) {
-    Expect.equals(8, sizeOf<Pointer>());
-    Expect.equals(24, sizeOf<Coordinate>());
-  }
-  Expect.throws(() => sizeOf<Void>());
-}
diff --git a/tests/ffi_2/snapshot_test.dart b/tests/ffi_2/snapshot_test.dart
deleted file mode 100644
index 0452b5b3285..00000000000
--- a/tests/ffi_2/snapshot_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Checks that the VM throws an appropriate exception when FFI objects are
-// passed between isolates.
-
-import 'dart:ffi';
-import 'dart:isolate';
-
-import 'package:expect/expect.dart';
-
-main(args) async {
-  try {
-    await Isolate.spawn(print, Pointer<Void>.fromAddress(1));
-  } catch (e) {
-    Expect.type<ArgumentError>(e);
-    return;
-  }
-
-  throw "Test didn't throw an exception!";
-}
diff --git a/tests/ffi_2/stacktrace_regress_37910_test.dart b/tests/ffi_2/stacktrace_regress_37910_test.dart
deleted file mode 100644
index 3ef8376bd34..00000000000
--- a/tests/ffi_2/stacktrace_regress_37910_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// VMOptions=--stacktrace_every=100
-
-// @dart = 2.9
-
-import 'dart:ffi' as ffi;
-
-typedef fooFfi1Type = ffi.Int32 Function();
-int fooFfi1() {
-  int a = 0;
-  for (int i = 0; i < 1000; ++i) {
-    a += i;
-  }
-  return a;
-}
-
-int Function() foo1 = ffi.Pointer.fromFunction<fooFfi1Type>(fooFfi1, 0)
-    .cast<ffi.NativeFunction<fooFfi1Type>>()
-    .asFunction();
-
-main() {
-  foo1();
-}
diff --git a/tests/ffi_2/structs_nested_test.dart b/tests/ffi_2/structs_nested_test.dart
deleted file mode 100644
index 40e8090591e..00000000000
--- a/tests/ffi_2/structs_nested_test.dart
+++ /dev/null
@@ -1,105 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// This tests the non trampoline aspects of nested structs.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
-
-import 'dylib_utils.dart';
-
-final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-void main() {
-  for (int i = 0; i < 10; ++i) {
-    testSizeOf();
-    testAllocate();
-    testRead();
-    testWrite();
-    testCopy();
-  }
-}
-
-class Struct4BytesHomogeneousInt16 extends Struct {
-  @Int16()
-  int a0;
-
-  @Int16()
-  int a1;
-
-  String toString() => "(${a0}, ${a1})";
-}
-
-class Struct8BytesNestedInt extends Struct {
-  Struct4BytesHomogeneousInt16 a0;
-
-  Struct4BytesHomogeneousInt16 a1;
-
-  String toString() => "(${a0}, ${a1})";
-}
-
-void testSizeOf() {
-  print(sizeOf<Struct8BytesNestedInt>());
-  Expect.equals(8, sizeOf<Struct8BytesNestedInt>());
-}
-
-void testAllocate() {
-  final p = calloc<Struct8BytesNestedInt>();
-  Expect.type<Pointer<Struct8BytesNestedInt>>(p);
-  print(p);
-  calloc.free(p);
-}
-
-/// Test that reading does not segfault, even uninitialized.
-void testRead() {
-  print("read");
-  final p = calloc<Struct8BytesNestedInt>();
-  print(p);
-  print(p.ref.runtimeType);
-  print(p.address);
-  print(p.ref.a0.runtimeType);
-  print(p.ref.a0.a0);
-  calloc.free(p);
-  print("read");
-}
-
-void testWrite() {
-  print("write");
-  final p = calloc<Struct8BytesNestedInt>(2);
-  p[0].a0.a0 = 12;
-  p[0].a0.a1 = 13;
-  p[0].a1.a0 = 14;
-  p[0].a1.a1 = 15;
-  p[1].a0.a0 = 16;
-  p[1].a0.a1 = 17;
-  p[1].a1.a0 = 18;
-  p[1].a1.a1 = 19;
-  Expect.equals(12, p[0].a0.a0);
-  Expect.equals(13, p[0].a0.a1);
-  Expect.equals(14, p[0].a1.a0);
-  Expect.equals(15, p[0].a1.a1);
-  Expect.equals(16, p[1].a0.a0);
-  Expect.equals(17, p[1].a0.a1);
-  Expect.equals(18, p[1].a1.a0);
-  Expect.equals(19, p[1].a1.a1);
-  calloc.free(p);
-  print("written");
-}
-
-void testCopy() {
-  print("copy");
-  final p = calloc<Struct8BytesNestedInt>();
-  p.ref.a0.a0 = 12;
-  p.ref.a0.a1 = 13;
-  p.ref.a1 = p.ref.a0;
-  Expect.equals(12, p.ref.a1.a0);
-  Expect.equals(13, p.ref.a1.a1);
-  calloc.free(p);
-  print("copied");
-}
diff --git a/tests/ffi_2/structs_packed_test.dart b/tests/ffi_2/structs_packed_test.dart
deleted file mode 100644
index 6834ee7f183..00000000000
--- a/tests/ffi_2/structs_packed_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-
-import 'dylib_utils.dart';
-
-// Reuse compound definitions.
-import 'function_structs_by_value_generated_compounds.dart';
-
-void main() {
-  testSizeOfC();
-  testSizeOfDart();
-}
-
-final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-
-final sizeOfStruct3BytesPackedInt =
-    ffiTestFunctions.lookupFunction<Uint64 Function(), int Function()>(
-        "SizeOfStruct3BytesPackedInt");
-
-void testSizeOfC() {
-  Expect.equals(3, sizeOfStruct3BytesPackedInt());
-}
-
-void testSizeOfDart() {
-  // No packing needed to get to 3 bytes.
-  Expect.equals(3, sizeOf<Struct3BytesHomogeneousUint8>());
-
-  // Contents 3 bytes, but alignment forces it to be 4 bytes.
-  Expect.equals(4, sizeOf<Struct3BytesInt2ByteAligned>());
-
-  // Alignment gets the same content back to 3 bytes.
-  Expect.equals(3, sizeOf<Struct3BytesPackedInt>());
-}
diff --git a/tests/ffi_2/structs_test.dart b/tests/ffi_2/structs_test.dart
deleted file mode 100644
index 813acaa34f6..00000000000
--- a/tests/ffi_2/structs_test.dart
+++ /dev/null
@@ -1,148 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program for testing dart:ffi struct pointers.
-//
-// VMOptions=--deterministic --optimization-counter-threshold=50
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
-
-import 'coordinate.dart';
-
-void main() {
-  for (int i = 0; i < 100; i++) {
-    testStructAllocate();
-    testStructFromAddress();
-    testStructIndexedAccess();
-    testStructWithNulls();
-    testTypeTest();
-    testUtf8();
-    testDotDotRef();
-  }
-}
-
-/// Allocates each coordinate separately in c memory.
-void testStructAllocate() {
-  final c1 = calloc<Coordinate>()
-    ..ref.x = 10.0
-    ..ref.y = 10.0;
-  final c2 = calloc<Coordinate>()
-    ..ref.x = 20.0
-    ..ref.y = 20.0
-    ..ref.next = c1;
-  final c3 = calloc<Coordinate>()
-    ..ref.x = 30.0
-    ..ref.y = 30.0
-    ..ref.next = c2;
-  c1.ref.next = c3;
-
-  Coordinate currentCoordinate = c1.ref;
-  Expect.equals(10.0, currentCoordinate.x);
-  currentCoordinate = currentCoordinate.next.ref;
-  Expect.equals(30.0, currentCoordinate.x);
-  currentCoordinate = currentCoordinate.next.ref;
-  Expect.equals(20.0, currentCoordinate.x);
-  currentCoordinate = currentCoordinate.next.ref;
-  Expect.equals(10.0, currentCoordinate.x);
-
-  calloc.free(c1);
-  calloc.free(c2);
-  calloc.free(c3);
-}
-
-/// Allocates coordinates consecutively in c memory.
-void testStructFromAddress() {
-  Pointer<Coordinate> c1 = calloc(3);
-  Pointer<Coordinate> c2 = c1.elementAt(1);
-  Pointer<Coordinate> c3 = c1.elementAt(2);
-  c1.ref
-    ..x = 10.0
-    ..y = 10.0
-    ..next = c3;
-  c2.ref
-    ..x = 20.0
-    ..y = 20.0
-    ..next = c1;
-  c3.ref
-    ..x = 30.0
-    ..y = 30.0
-    ..next = c2;
-
-  Coordinate currentCoordinate = c1.ref;
-  Expect.equals(10.0, currentCoordinate.x);
-  currentCoordinate = currentCoordinate.next.ref;
-  Expect.equals(30.0, currentCoordinate.x);
-  currentCoordinate = currentCoordinate.next.ref;
-  Expect.equals(20.0, currentCoordinate.x);
-  currentCoordinate = currentCoordinate.next.ref;
-  Expect.equals(10.0, currentCoordinate.x);
-
-  calloc.free(c1);
-}
-
-/// Allocates coordinates consecutively in c memory.
-void testStructIndexedAccess() {
-  Pointer<Coordinate> cs = calloc(3);
-  cs[0]
-    ..x = 10.0
-    ..y = 10.0
-    ..next = cs.elementAt(2);
-  cs[1]
-    ..x = 20.0
-    ..y = 20.0
-    ..next = cs;
-  cs[2]
-    ..x = 30.0
-    ..y = 30.0
-    ..next = cs.elementAt(1);
-
-  Coordinate currentCoordinate = cs.ref;
-  Expect.equals(10.0, currentCoordinate.x);
-  currentCoordinate = currentCoordinate.next.ref;
-  Expect.equals(30.0, currentCoordinate.x);
-  currentCoordinate = currentCoordinate.next.ref;
-  Expect.equals(20.0, currentCoordinate.x);
-  currentCoordinate = currentCoordinate.next.ref;
-  Expect.equals(10.0, currentCoordinate.x);
-
-  calloc.free(cs);
-}
-
-void testStructWithNulls() {
-  final coordinate = calloc<Coordinate>()
-    ..ref.x = 10.0
-    ..ref.y = 10.0;
-  Expect.equals(coordinate.ref.next, nullptr);
-  coordinate.ref.next = coordinate;
-  Expect.notEquals(coordinate.ref.next, nullptr);
-  coordinate.ref.next = nullptr;
-  Expect.equals(coordinate.ref.next, nullptr);
-  calloc.free(coordinate);
-}
-
-void testTypeTest() {
-  final pointer = calloc<Coordinate>();
-  Coordinate c = pointer.ref;
-  Expect.isTrue(c is Struct);
-  calloc.free(pointer);
-}
-
-void testUtf8() {
-  final String test = 'Hasta Mañana';
-  final Pointer<Utf8> medium = test.toNativeUtf8();
-  Expect.equals(test, medium.toDartString());
-  calloc.free(medium);
-}
-
-void testDotDotRef() {
-  final pointer = calloc<Coordinate>()
-    ..ref.x = 1
-    ..ref.y = 1;
-  calloc.free(pointer);
-}
diff --git a/tests/ffi_2/unaligned_test.dart b/tests/ffi_2/unaligned_test.dart
deleted file mode 100644
index 27405ebd0a2..00000000000
--- a/tests/ffi_2/unaligned_test.dart
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This tests exercises misaligned reads/writes on memory.
-//
-// The only architecture on which this is known to fail is arm32 on Android.
-
-import 'dart:ffi';
-import 'dart:io';
-
-import 'package:expect/expect.dart';
-import 'package:ffi/ffi.dart';
-
-void main() {
-  print("hello");
-  testUnalignedInt16(); //# 01: ok
-  testUnalignedInt32(); //# 02: ok
-  testUnalignedInt64(); //# 03: ok
-  if (!Platform.isAndroid || sizeOf<Pointer>() == 8) {
-    // TODO(http://dartbug.com/45009): Support unaligned reads/writes on
-    // Android arm32.
-    testUnalignedFloat(); //# 04: ok
-    testUnalignedDouble(); //# 05: ok
-  }
-  _freeAll();
-}
-
-void testUnalignedInt16() {
-  final pointer = _allocateUnaligned<Int16>();
-  pointer.value = 20;
-  Expect.equals(20, pointer.value);
-}
-
-void testUnalignedInt32() {
-  final pointer = _allocateUnaligned<Int32>();
-  pointer.value = 20;
-  Expect.equals(20, pointer.value);
-}
-
-void testUnalignedInt64() {
-  final pointer = _allocateUnaligned<Int64>();
-  pointer.value = 20;
-  Expect.equals(20, pointer.value);
-}
-
-void testUnalignedFloat() {
-  final pointer = _allocateUnaligned<Float>();
-  pointer.value = 20.0;
-  Expect.approxEquals(20.0, pointer.value);
-}
-
-void testUnalignedDouble() {
-  final pointer = _allocateUnaligned<Double>();
-  pointer.value = 20.0;
-  Expect.equals(20.0, pointer.value);
-}
-
-final Set<Pointer> _pool = {};
-
-void _freeAll() {
-  for (final pointer in _pool) {
-    calloc.free(pointer);
-  }
-}
-
-/// Up to `size<T>() == 8`.
-Pointer<T> _allocateUnaligned<T extends NativeType>() {
-  final pointer = calloc<Int8>(16);
-  _pool.add(pointer);
-  final misaligned = pointer.elementAt(1).cast<T>();
-  Expect.equals(1, misaligned.address % 2);
-  return misaligned;
-}
diff --git a/tests/ffi_2/variance_function_test.dart b/tests/ffi_2/variance_function_test.dart
deleted file mode 100644
index 27ebc93c95d..00000000000
--- a/tests/ffi_2/variance_function_test.dart
+++ /dev/null
@@ -1,239 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// VMOptions=
-// VMOptions=--deterministic --optimization-counter-threshold=90
-// VMOptions=--use-slow-path
-// SharedObjects=ffi_test_functions
-//
-// This file tests subtyping relationships (at compile time and at runtime) of
-// parameters and return types of ffi trampolines and ffi callback trampolines.
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-import "package:ffi/ffi.dart";
-
-import 'dylib_utils.dart';
-
-typedef Int64PointerParamOpDart = void Function(Pointer<Int64>);
-typedef Int64PointerParamOp = Void Function(Pointer<Int64>);
-typedef NaTyPointerParamOpDart = void Function(Pointer<NativeType>);
-typedef NaTyPointerParamOp = Void Function(Pointer<NativeType>);
-typedef Int64PointerReturnOp = Pointer<Int64> Function();
-typedef NaTyPointerReturnOp = Pointer<NativeType> Function();
-
-final paramOpName = "NativeTypePointerParam";
-final returnOpName = "NativeTypePointerReturn";
-
-final DynamicLibrary ffiTestFunctions =
-    dlopenPlatformSpecific("ffi_test_functions");
-
-// =============================================
-// Tests calls from Dart to native (asFunction).
-// =============================================
-
-void paramInvariant1() {
-  final fp =
-      ffiTestFunctions.lookup<NativeFunction<Int64PointerParamOp>>(paramOpName);
-  final f = fp.asFunction<Int64PointerParamOpDart>();
-  final arg = calloc<Int64>();
-  f(arg);
-  calloc.free(arg);
-}
-
-void paramInvariant2() {
-  final fp =
-      ffiTestFunctions.lookup<NativeFunction<NaTyPointerParamOp>>(paramOpName);
-  final f = fp.asFunction<NaTyPointerParamOpDart>();
-  final arg = calloc<Int64>().cast<NativeType>();
-  Expect.type<Pointer<NativeType>>(arg);
-  f(arg);
-  calloc.free(arg);
-}
-
-// Pass a statically and dynamically subtyped argument.
-void paramSubtype1() {
-  final fp =
-      ffiTestFunctions.lookup<NativeFunction<NaTyPointerParamOp>>(paramOpName);
-  final f = fp.asFunction<NaTyPointerParamOpDart>();
-  final arg = calloc<Int64>();
-  Expect.type<Pointer<Int64>>(arg);
-  f(arg);
-  calloc.free(arg);
-}
-
-// Pass a statically subtyped but dynamically invariant argument.
-void paramSubtype2() {
-  final fp =
-      ffiTestFunctions.lookup<NativeFunction<NaTyPointerParamOp>>(paramOpName);
-  final f = fp.asFunction<NaTyPointerParamOpDart>();
-  final Pointer<NativeType> arg = calloc<Int64>();
-  Expect.type<Pointer<Int64>>(arg);
-  f(arg);
-  calloc.free(arg);
-}
-
-void returnInvariant1() {
-  final fp = ffiTestFunctions
-      .lookup<NativeFunction<Int64PointerReturnOp>>(returnOpName);
-  final f = fp.asFunction<Int64PointerReturnOp>();
-  final result = f();
-  Expect.type<Pointer<Int64>>(result);
-}
-
-void returnInvariant2() {
-  final fp = ffiTestFunctions
-      .lookup<NativeFunction<NaTyPointerReturnOp>>(returnOpName);
-  final f = fp.asFunction<NaTyPointerReturnOp>();
-  final result = f();
-  Expect.type<Pointer<NativeType>>(result);
-}
-
-void returnSubtype() {
-  final fp = ffiTestFunctions
-      .lookup<NativeFunction<Int64PointerReturnOp>>(returnOpName);
-  final f = fp.asFunction<Int64PointerReturnOp>();
-  final NaTyPointerReturnOp f2 = f;
-  Expect.type<Int64PointerReturnOp>(f2);
-  final result = f2();
-  Expect.type<Pointer<NativeType>>(result);
-}
-
-void functionArgumentVariance() {
-  final p = Pointer<
-      NativeFunction<
-          Pointer<NativeFunction<Pointer<Int8> Function(Pointer<NativeType>)>> Function(
-              Pointer<
-                  NativeFunction<
-                      Pointer<NativeType> Function(
-                          Pointer<Int8>)>>)>>.fromAddress(0x1234);
-  final f = p.asFunction<
-      Pointer<NativeFunction<Pointer<NativeType> Function(Pointer<Int8>)>> Function(
-          Pointer<
-              NativeFunction<Pointer<Int8> Function(Pointer<NativeType>)>>)>();
-}
-
-void asFunctionTests() {
-  for (int i = 0; i < 100; ++i) {
-    paramInvariant1(); // Parameter invariant: Pointer<Int64>.
-    paramInvariant2(); // Parameter invariant: Pointer<NativeType>.
-    paramSubtype1(); // Parameter statically and dynamically subtyped.
-    paramSubtype2(); // Parameter statically invariant, dynamically subtyped.
-    returnInvariant1(); // Return value invariant: Pointer<Int64>.
-    returnInvariant2(); // Return value invariant: Pointer<NativeType>.
-    returnSubtype(); // Return value static subtyped, dynamically invariant.
-    functionArgumentVariance(); // Check nested function signatures.
-  }
-}
-
-// =======================================================
-// Test with callbacks from native to Dart (fromFunction).
-// =======================================================
-
-typedef CallbackInt64PointerParamOpDart = void Function(
-    Pointer<NativeFunction<Int64PointerParamOp>>);
-typedef CallbackInt64PointerParamOp = Void Function(
-    Pointer<NativeFunction<Int64PointerParamOp>>);
-
-typedef CallbackNaTyPointerParamOpDart = void Function(
-    Pointer<NativeFunction<NaTyPointerParamOp>>);
-typedef CallbackNaTyPointerParamOp = Void Function(
-    Pointer<NativeFunction<NaTyPointerParamOp>>);
-
-typedef CallbackInt64PointerReturnOpDart = void Function(
-    Pointer<NativeFunction<Int64PointerReturnOp>>);
-typedef CallbackInt64PointerReturnOp = Void Function(
-    Pointer<NativeFunction<Int64PointerReturnOp>>);
-
-typedef CallbackNaTyPointerReturnOpDart = void Function(
-    Pointer<NativeFunction<NaTyPointerReturnOp>>);
-typedef CallbackNaTyPointerReturnOp = Void Function(
-    Pointer<NativeFunction<NaTyPointerReturnOp>>);
-
-final callbackParamOpName = "CallbackNativeTypePointerParam";
-final callbackReturnOpName = "CallbackNativeTypePointerReturn";
-
-void int64PointerParamOp(Pointer<Int64> p) {
-  p.value = 42;
-}
-
-void naTyPointerParamOp(Pointer<NativeType> p) {
-  final Pointer<Int8> asInt8 = p.cast();
-  asInt8.value = 42;
-}
-
-// Pointer to return to C when C calls back into Dart and asks for a Pointer.
-Pointer<Int64> data;
-
-Pointer<Int64> int64PointerReturnOp() {
-  return data;
-}
-
-Pointer<NativeType> naTyPointerReturnOp() {
-  return data;
-}
-
-void callbackParamInvariant1() {
-  final callback = ffiTestFunctions.lookupFunction<CallbackInt64PointerParamOp,
-      CallbackInt64PointerParamOpDart>(callbackParamOpName);
-  final fp = Pointer.fromFunction<Int64PointerParamOp>(int64PointerParamOp);
-  callback(fp);
-}
-
-void callbackParamInvariant2() {
-  final callback = ffiTestFunctions.lookupFunction<CallbackNaTyPointerParamOp,
-      CallbackNaTyPointerParamOpDart>(callbackParamOpName);
-  final fp = Pointer.fromFunction<NaTyPointerParamOp>(naTyPointerParamOp);
-  callback(fp);
-}
-
-void callbackParamImplicitDowncast1() {
-  final callback = ffiTestFunctions.lookupFunction<CallbackNaTyPointerParamOp,
-      CallbackNaTyPointerParamOpDart>(callbackParamOpName);
-  final fp = Pointer.fromFunction<Int64PointerParamOp>(int64PointerParamOp);
-  // Pointer type arguments are not reified, any cast will succeed.
-  callback(fp);
-}
-
-void callbackParamSubtype1() {
-  final callback = ffiTestFunctions.lookupFunction<CallbackNaTyPointerParamOp,
-      CallbackNaTyPointerParamOpDart>(callbackParamOpName);
-  final fp = Pointer.fromFunction<NaTyPointerParamOp>(int64PointerParamOp);
-  callback(fp);
-}
-
-void callbackReturnInvariant1() {
-  final callback = ffiTestFunctions.lookupFunction<CallbackInt64PointerReturnOp,
-      CallbackInt64PointerReturnOpDart>(callbackReturnOpName);
-  final fp = Pointer.fromFunction<Int64PointerReturnOp>(int64PointerReturnOp);
-  callback(fp);
-}
-
-void callbackReturnInvariant2() {
-  final callback = ffiTestFunctions.lookupFunction<CallbackNaTyPointerReturnOp,
-      CallbackNaTyPointerReturnOpDart>(callbackReturnOpName);
-  final fp = Pointer.fromFunction<NaTyPointerReturnOp>(naTyPointerReturnOp);
-  callback(fp);
-}
-
-void fromFunctionTests() {
-  data = calloc();
-  for (int i = 0; i < 100; ++i) {
-    callbackParamInvariant1(); // Pointer<Int64> invariant
-    callbackParamInvariant2(); // Pointer<NativeType> invariant
-    callbackParamImplicitDowncast1(); // static and dynamically supertyped
-    callbackParamSubtype1(); // static and dynamically subtyped
-    callbackReturnInvariant1(); // Pointer<Int64> invariant
-    callbackReturnInvariant2(); // Pointer<NativeType> invariant
-  }
-  calloc.free(data);
-}
-
-void main() {
-  asFunctionTests();
-  fromFunctionTests();
-}
diff --git a/tests/ffi_2/very_large_struct.dart b/tests/ffi_2/very_large_struct.dart
deleted file mode 100644
index 16ce9adeb12..00000000000
--- a/tests/ffi_2/very_large_struct.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-/// Large sample struct for dart:ffi library.
-class VeryLargeStruct extends Struct {
-  @Int8()
-  int a;
-
-  @Int16()
-  int b;
-
-  @Int32()
-  int c;
-
-  @Int64()
-  int d;
-
-  @Uint8()
-  int e;
-
-  @Uint16()
-  int f;
-
-  @Uint32()
-  int g;
-
-  @Uint64()
-  int h;
-
-  @IntPtr()
-  int i;
-
-  @Double()
-  double j;
-
-  @Float()
-  double k;
-
-  Pointer<VeryLargeStruct> parent;
-
-  @IntPtr()
-  int numChildren;
-
-  Pointer<VeryLargeStruct> children;
-
-  @Int8()
-  int smallLastField;
-}
diff --git a/tests/ffi_2/vmspecific_dynamic_library_test.dart b/tests/ffi_2/vmspecific_dynamic_library_test.dart
deleted file mode 100644
index 5cdd035392f..00000000000
--- a/tests/ffi_2/vmspecific_dynamic_library_test.dart
+++ /dev/null
@@ -1,89 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program for testing dart:ffi dynamic library loading.
-//
-// SharedObjects=ffi_test_dynamic_library ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:io';
-import 'dart:ffi';
-
-import 'package:expect/expect.dart';
-
-import 'dylib_utils.dart';
-
-void main() {
-  testOpen();
-  testOpenError();
-  testLookup();
-  testLookupError();
-  testToString();
-  testEquality();
-  testHandle();
-}
-
-void testOpen() {
-  DynamicLibrary l = dlopenPlatformSpecific("ffi_test_dynamic_library");
-}
-
-void testOpenError() {
-  Expect.throws(
-      () => dlopenPlatformSpecific("doesnotexistforsurelibrary123409876"));
-}
-
-typedef NativeDoubleUnOp = Double Function(Double);
-
-typedef DoubleUnOp = double Function(double);
-
-void testLookup() {
-  final l = dlopenPlatformSpecific("ffi_test_dynamic_library");
-  var timesFour = l.lookupFunction<NativeDoubleUnOp, DoubleUnOp>("timesFour");
-  Expect.approxEquals(12.0, timesFour(3));
-
-  final p = DynamicLibrary.process();
-  if (Platform.isWindows) {
-    Expect.isTrue(p.lookup<Void>("HeapAlloc") != nullptr);
-    Expect.isTrue(p.lookup<Void>("CoTaskMemAlloc") != nullptr);
-  } else {
-    // Lookup a symbol from 'libc' since it's loaded with global visibility.
-    Expect.isTrue(p.lookup<Void>("strcmp") != nullptr);
-  }
-
-  final e = DynamicLibrary.executable();
-  Expect.isTrue(e.lookup("Dart_Invoke") != nullptr);
-}
-
-void testLookupError() {
-  DynamicLibrary l = dlopenPlatformSpecific("ffi_test_dynamic_library");
-  Expect.throws(() => l.lookupFunction<NativeDoubleUnOp, DoubleUnOp>(
-      "functionnamethatdoesnotexistforsure749237593845"));
-}
-
-void testToString() {
-  DynamicLibrary l = dlopenPlatformSpecific("ffi_test_dynamic_library");
-  Expect.stringEquals(
-      "DynamicLibrary: handle=0x", l.toString().substring(0, 25));
-}
-
-void testEquality() {
-  DynamicLibrary l = dlopenPlatformSpecific("ffi_test_dynamic_library");
-  DynamicLibrary l2 = dlopenPlatformSpecific("ffi_test_dynamic_library");
-  Expect.equals(l, l2);
-  Expect.equals(l.hashCode, l2.hashCode);
-  DynamicLibrary l3 = dlopenPlatformSpecific("ffi_test_functions");
-  Expect.notEquals(l, l3);
-}
-
-void testHandle() {
-  DynamicLibrary l = dlopenPlatformSpecific("ffi_test_dynamic_library");
-  DynamicLibrary l2 = dlopenPlatformSpecific("ffi_test_dynamic_library");
-  Pointer<Void> h = l.handle;
-  Pointer<Void> h2 = l2.handle;
-  Expect.equals(h, h2);
-  DynamicLibrary l3 = dlopenPlatformSpecific("ffi_test_functions");
-  Pointer<Void> h3 = l3.handle;
-  Expect.notEquals(h, h3);
-}
diff --git a/tests/ffi_2/vmspecific_enable_ffi_test.dart b/tests/ffi_2/vmspecific_enable_ffi_test.dart
deleted file mode 100644
index 0381db353ef..00000000000
--- a/tests/ffi_2/vmspecific_enable_ffi_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program for testing the --enable-ffi=false flag.
-//
-// VMOptions=--enable-ffi=false
-
-// @dart = 2.9
-
-import 'dart:ffi'; //# 01: compile-time error
-
-import 'package:ffi/ffi.dart'; //# 01: compile-time error
-
-void main() {
-  Pointer<Int8> p = //# 01: compile-time error
-      calloc(); //# 01: compile-time error
-  print(p.address); //# 01: compile-time error
-  calloc.free(p); //# 01: compile-time error
-}
diff --git a/tests/ffi_2/vmspecific_function_callbacks_exit_test.dart b/tests/ffi_2/vmspecific_function_callbacks_exit_test.dart
deleted file mode 100644
index ec8c8b57474..00000000000
--- a/tests/ffi_2/vmspecific_function_callbacks_exit_test.dart
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program for testing dart:ffi function pointers with callbacks.
-//
-// VMOptions=
-// VMOptions=--use-slow-path
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-import 'dart:io';
-import 'dart:ffi';
-import 'dart:isolate';
-
-import "package:expect/expect.dart";
-
-import 'callback_tests_utils.dart';
-import 'dylib_utils.dart';
-
-final testLibrary = dlopenPlatformSpecific("ffi_test_functions");
-
-typedef ReturnVoid = Void Function();
-void returnVoid() {}
-testCallbackWrongThread() {
-  print("Test CallbackWrongThread.");
-  CallbackTest(
-          "CallbackWrongThread", Pointer.fromFunction<ReturnVoid>(returnVoid))
-      .run();
-}
-
-testCallbackOutsideIsolate() {
-  print("Test CallbackOutsideIsolate.");
-  CallbackTest("CallbackOutsideIsolate",
-          Pointer.fromFunction<ReturnVoid>(returnVoid))
-      .run();
-}
-
-isolateHelper(int callbackPointer) {
-  final Pointer<Void> ptr = Pointer.fromAddress(callbackPointer);
-  final NativeCallbackTestFn tester =
-      testLibrary.lookupFunction<NativeCallbackTest, NativeCallbackTestFn>(
-          "TestCallbackWrongIsolate");
-  Expect.equals(0, tester(ptr));
-}
-
-testCallbackWrongIsolate() async {
-  final int callbackPointer =
-      Pointer.fromFunction<ReturnVoid>(returnVoid).address;
-  final ReceivePort exitPort = ReceivePort();
-  await Isolate.spawn(isolateHelper, callbackPointer,
-      errorsAreFatal: true, onExit: exitPort.sendPort);
-  await exitPort.first;
-}
-
-void main() async {
-  // These tests terminate the process after successful completion, so we have
-  // to run them separately.
-  //
-  // Since they use signal handlers they only run on Linux.
-  if (Platform.isLinux && !const bool.fromEnvironment("dart.vm.product")) {
-    testCallbackWrongThread(); //# 01: ok
-    testCallbackOutsideIsolate(); //# 02: ok
-    await testCallbackWrongIsolate(); //# 03: ok
-  }
-}
diff --git a/tests/ffi_2/vmspecific_function_callbacks_negative_test.dart b/tests/ffi_2/vmspecific_function_callbacks_negative_test.dart
deleted file mode 100644
index f832e0fbf34..00000000000
--- a/tests/ffi_2/vmspecific_function_callbacks_negative_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program for testing dart:ffi function pointers with callbacks.
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import 'dylib_utils.dart';
-
-final DynamicLibrary testLibrary = dlopenPlatformSpecific("ffi_test_functions");
-
-// Correct type of exceptionalReturn argument to Pointer.fromFunction.
-double testExceptionalReturn() {
-  Pointer.fromFunction<Double Function()>(returnVoid, null); //# 59: compile-time error
-  Pointer.fromFunction<Void Function()>(returnVoid, 0); //# 60: compile-time error
-  Pointer.fromFunction<Double Function()>(testExceptionalReturn, "abc"); //# 61: compile-time error
-  Pointer.fromFunction<Double Function()>(testExceptionalReturn, 0); //# 62: compile-time error
-  Pointer.fromFunction<Double Function()>(testExceptionalReturn); //# 63: compile-time error
-
-  return 0.0; // not used
-}
-
-void main() {
-  testExceptionalReturn();
-}
diff --git a/tests/ffi_2/vmspecific_function_callbacks_test.dart b/tests/ffi_2/vmspecific_function_callbacks_test.dart
deleted file mode 100644
index 63bcc6775f7..00000000000
--- a/tests/ffi_2/vmspecific_function_callbacks_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test program for testing dart:ffi function pointers with callbacks.
-//
-// SharedObjects=ffi_test_functions
-// VMOptions=--stacktrace-every=100
-// VMOptions=--use-slow-path
-// VMOptions=--use-slow-path --stacktrace-every=100
-// VMOptions=--use-slow-path --write-protect-code --no-dual-map-code
-// VMOptions=--use-slow-path --write-protect-code --no-dual-map-code --stacktrace-every=100
-// VMOptions=--write-protect-code --no-dual-map-code
-// VMOptions=--write-protect-code --no-dual-map-code --stacktrace-every=100
-
-import 'dart:ffi';
-
-import 'ffi_test_helpers.dart';
-import 'callback_tests_utils.dart';
-import 'dylib_utils.dart';
-
-typedef ReturnVoid = Void Function();
-
-final testLibrary = dlopenPlatformSpecific("ffi_test_functions");
-
-void testGC() {
-  triggerGc();
-}
-
-typedef WaitForHelperNative = Void Function(Pointer<Void>);
-typedef WaitForHelper = void Function(Pointer<Void>);
-
-void waitForHelper(Pointer<Void> helper) {
-  print("helper: $helper");
-  testLibrary.lookupFunction<WaitForHelperNative, WaitForHelper>(
-      "WaitForHelper")(helper);
-}
-
-final testcases = [
-  CallbackTest("GC", Pointer.fromFunction<ReturnVoid>(testGC)),
-  CallbackTest("UnprotectCode",
-      Pointer.fromFunction<WaitForHelperNative>(waitForHelper)),
-];
-
-const double zeroPointZero = 0.0;
-
-// Correct type of exceptionalReturn argument to Pointer.fromFunction.
-double testExceptionalReturn() {
-  Pointer.fromFunction<Double Function()>(testExceptionalReturn, 0.0);
-  Pointer.fromFunction<Double Function()>(testExceptionalReturn, zeroPointZero);
-
-  return 0.0;
-}
-
-void main() {
-  testExceptionalReturn();
-
-  testcases.forEach((t) => t.run());
-}
diff --git a/tests/ffi_2/vmspecific_function_gc_test.dart b/tests/ffi_2/vmspecific_function_gc_test.dart
deleted file mode 100644
index 462601bf93b..00000000000
--- a/tests/ffi_2/vmspecific_function_gc_test.dart
+++ /dev/null
@@ -1,123 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// VMOptions=--deterministic --optimization-counter-threshold=500
-// VMOptions=--deterministic --optimization-counter-threshold=-1
-// VMOptions=--deterministic --optimization-counter-threshold=500 --no-dual-map-code --write-protect-code
-// VMOptions=--deterministic --optimization-counter-threshold=-1 --no-dual-map-code --write-protect-code
-// VMOptions=--no-dual-map-code --write-protect-code
-// VMOptions=--no-dual-map-code --write-protect-code --stacktrace-every=100
-//
-// Dart test program for stress-testing boxing and GC in return paths from FFI
-// trampolines.
-//
-// NOTE: This test does not produce useful stderr when it fails because the
-// stderr is redirected to a file for reflection.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi' as ffi;
-import "package:expect/expect.dart";
-import 'ffi_test_helpers.dart';
-
-main() async {
-  testBoxInt64();
-  testBoxInt32();
-  testBoxDouble();
-  testBoxPointer();
-  testAllocateInNative();
-  testRegress37069();
-  testWriteProtection();
-}
-
-typedef NativeNullaryOp64 = ffi.Int64 Function();
-typedef NativeNullaryOp32 = ffi.Int32 Function();
-typedef NativeNullaryOpDouble = ffi.Double Function();
-typedef NativeNullaryOpPtr = ffi.Pointer<ffi.Void> Function();
-typedef NativeUnaryOp = ffi.Void Function(ffi.Uint64);
-typedef NativeUndenaryOp = ffi.Uint64 Function(
-    ffi.Uint64,
-    ffi.Uint64,
-    ffi.Uint64,
-    ffi.Uint64,
-    ffi.Uint64,
-    ffi.Uint64,
-    ffi.Uint64,
-    ffi.Uint64,
-    ffi.Uint64,
-    ffi.Uint64,
-    ffi.Uint64);
-typedef NullaryOp = int Function();
-typedef NullaryOpDbl = double Function();
-typedef NullaryOpPtr = ffi.Pointer<ffi.Void> Function();
-typedef UnaryOp = void Function(int);
-typedef UndenaryOp = int Function(
-    int, int, int, int, int, int, int, int, int, int, int);
-
-//// These functions return values that require boxing into different types.
-
-final minInt64 =
-    ffiTestFunctions.lookupFunction<NativeNullaryOp64, NullaryOp>("MinInt64");
-
-// Forces boxing into Mint on all platforms.
-void testBoxInt64() {
-  Expect.equals(0x8000000000000000, minInt64());
-}
-
-NullaryOp minInt32 =
-    ffiTestFunctions.lookupFunction<NativeNullaryOp32, NullaryOp>("MinInt32");
-
-// Forces boxing into Mint on 32-bit platforms only.
-void testBoxInt32() {
-  Expect.equals(-0x80000000, minInt32());
-}
-
-final smallDouble = ffiTestFunctions
-    .lookupFunction<NativeNullaryOpDouble, NullaryOpDbl>("SmallDouble");
-
-// Forces boxing into Double.
-void testBoxDouble() {
-  Expect.equals(0x80000000 * -1.0, smallDouble());
-}
-
-final largePointer = ffiTestFunctions
-    .lookupFunction<NativeNullaryOpPtr, NullaryOpPtr>("LargePointer");
-
-// Forces boxing into ffi.Pointer and ffi.Mint.
-void testBoxPointer() {
-  ffi.Pointer pointer = largePointer();
-  if (ffi.sizeOf<ffi.Pointer>() == 4) {
-    Expect.equals(0x82000000, pointer.address);
-  } else {
-    Expect.equals(0x8100000082000000, pointer.address);
-  }
-}
-
-// Test GC in the FFI call path by calling a C function which triggers GC
-// directly.
-void testAllocateInNative() => triggerGc();
-
-// This also works as a regression test for 37176.
-
-final regress37069 = ffiTestFunctions
-    .lookupFunction<NativeUndenaryOp, UndenaryOp>("Regress37069");
-
-// Test GC in the FFI call path by calling a C function which triggers GC
-// directly.
-void testRegress37069() {
-  regress37069(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11);
-}
-
-final unprotectCode = ffiTestFunctions.lookupFunction<
-    ffi.Pointer<ffi.Void> Function(ffi.Pointer<ffi.Void>),
-    ffi.Pointer<ffi.Void> Function(ffi.Pointer<ffi.Void>)>("TestUnprotectCode");
-final waitForHelper = ffiTestFunctions.lookupFunction<
-    ffi.Void Function(ffi.Pointer<ffi.Void>),
-    void Function(ffi.Pointer<ffi.Void>)>("WaitForHelper");
-
-void testWriteProtection() {
-  waitForHelper(unprotectCode(ffi.nullptr));
-}
diff --git a/tests/ffi_2/vmspecific_function_test.dart b/tests/ffi_2/vmspecific_function_test.dart
deleted file mode 100644
index ee787803fe2..00000000000
--- a/tests/ffi_2/vmspecific_function_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program for testing dart:ffi function pointers.
-//
-// VMOptions=
-// VMOptions=--deterministic --optimization-counter-threshold=10
-// VMOptions=--use-slow-path
-// VMOptions=--use-slow-path --stacktrace-every=100
-// VMOptions=--write-protect-code --no-dual-map-code
-// VMOptions=--write-protect-code --no-dual-map-code --use-slow-path
-// VMOptions=--write-protect-code --no-dual-map-code --stacktrace-every=100
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import 'dylib_utils.dart';
-
-void main() {
-  for (int i = 0; i < 100; ++i) {
-    testLookupFunctionPointerNativeType();
-  }
-}
-
-final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-
-typedef NativeTypeNFT = Pointer<NativeType> Function(
-    Pointer<Pointer<NativeType>>, Int8);
-typedef NativeTypeFT = Pointer<NativeType> Function(
-    Pointer<Pointer<NativeType>>, int);
-
-void testLookupFunctionPointerNativeType() {
-  // The function signature does not match up, but that does not matter since
-  // this test does not use the trampoline.
-  ffiTestFunctions.lookupFunction<NativeTypeNFT, NativeTypeFT>("LargePointer");
-}
diff --git a/tests/ffi_2/vmspecific_handle_dynamically_linked_test.dart b/tests/ffi_2/vmspecific_handle_dynamically_linked_test.dart
deleted file mode 100644
index 950a0234ac0..00000000000
--- a/tests/ffi_2/vmspecific_handle_dynamically_linked_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import 'package:expect/expect.dart';
-
-import 'dylib_utils.dart';
-
-void main() {
-  doDynamicLinking();
-  testHandle();
-  testNativeAPIs();
-}
-
-void doDynamicLinking() {
-  Expect.isTrue(NativeApi.majorVersion == 2);
-  Expect.isTrue(NativeApi.minorVersion >= 2);
-  final initializeApi = testLibrary.lookupFunction<
-      IntPtr Function(Pointer<Void>),
-      int Function(Pointer<Void>)>("InitDartApiDL");
-  Expect.isTrue(initializeApi(NativeApi.initializeApiDLData) == 0);
-}
-
-void testHandle() {
-  final s = SomeClass(123);
-  print("passObjectToC($s)");
-  final result = passObjectToC(s);
-  print("result = $result");
-  Expect.isTrue(identical(s, result));
-}
-
-void testNativeAPIs() {
-  // No need to expect here, `lookupFunction` throws an argument error if lookup fails.
-  testLibrary.lookupFunction<Bool Function(Handle), bool Function(Object)>(
-      "Dart_IsNull_DL");
-}
-
-class SomeClass {
-  // We use this getter in the native api, don't tree shake it.
-  @pragma("vm:entry-point")
-  final int a;
-  SomeClass(this.a);
-}
-
-final testLibrary = dlopenPlatformSpecific("ffi_test_functions");
-
-final passObjectToC = testLibrary.lookupFunction<Handle Function(Handle),
-    Object Function(Object)>("PassObjectToCUseDynamicLinking");
diff --git a/tests/ffi_2/vmspecific_handle_test.dart b/tests/ffi_2/vmspecific_handle_test.dart
deleted file mode 100644
index ab67c402a67..00000000000
--- a/tests/ffi_2/vmspecific_handle_test.dart
+++ /dev/null
@@ -1,279 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import 'package:expect/expect.dart';
-
-import 'dylib_utils.dart';
-
-void main() {
-  testHandle();
-  testHandleWithInteger();
-  testReadField();
-  testTrueHandle();
-  testClosureCallback();
-  testReturnHandleInCallback();
-  testPropagateError();
-  testCallbackReturnException();
-  testDeepException();
-  testDeepException2();
-  testNull();
-  testDeepRecursive();
-  testNoHandlePropagateError();
-}
-
-void testHandle() {
-  print("testHandle");
-  final s = SomeClass(123);
-  print("passObjectToC($s)");
-  final result = passObjectToC(s);
-  print("result = $result");
-  Expect.isTrue(identical(s, result));
-}
-
-void testHandleWithInteger() {
-  print("testHandleWithInteger");
-  final s = 1337;
-  print("passObjectToC($s)");
-  final result = passObjectToC(s);
-  print("result = $result");
-  Expect.isTrue(identical(s, result));
-}
-
-void testReadField() {
-  final s = SomeClass(123);
-  final result = handleReadFieldValue(s);
-  Expect.equals(s.a, result);
-}
-
-void testTrueHandle() {
-  final result = trueHandle();
-  Expect.isTrue(result);
-}
-
-int globalCounter = 0;
-
-void increaseCounter() {
-  print("increaseCounter");
-  globalCounter++;
-}
-
-void doClosureCallback(Object callback) {
-  print("doClosureCallback");
-  print(callback.runtimeType);
-  print(callback);
-  final callback_as_function = callback as void Function();
-  callback_as_function();
-}
-
-final closureCallbackPointer =
-    Pointer.fromFunction<Void Function(Handle)>(doClosureCallback);
-
-void testClosureCallback() {
-  print("testClosureCallback $closureCallbackPointer");
-  Expect.equals(0, globalCounter);
-  closureCallbackThroughHandle(closureCallbackPointer, increaseCounter);
-  Expect.equals(1, globalCounter);
-  closureCallbackThroughHandle(closureCallbackPointer, increaseCounter);
-  Expect.equals(2, globalCounter);
-}
-
-final someObject = SomeClass(12356789);
-
-Object returnHandleCallback() {
-  print("returnHandleCallback returning $someObject");
-  return someObject;
-}
-
-final returnHandleCallbackPointer =
-    Pointer.fromFunction<Handle Function()>(returnHandleCallback);
-
-void testReturnHandleInCallback() {
-  print("testReturnHandleInCallback");
-  final result = returnHandleInCallback(returnHandleCallbackPointer);
-  Expect.isTrue(identical(someObject, result));
-}
-
-class SomeClass {
-  // We use this getter in the native api, don't tree shake it.
-  @pragma("vm:entry-point")
-  final int a;
-  SomeClass(this.a);
-}
-
-void testPropagateError() {
-  final s = SomeOtherClass(123);
-  Expect.throws(() => handleReadFieldValue(s));
-}
-
-class SomeOtherClass {
-  final int notA;
-  SomeOtherClass(this.notA);
-}
-
-final someException = Exception("exceptionHandleCallback exception");
-
-Object exceptionHandleCallback() {
-  print("exceptionHandleCallback throwing ($someException)");
-  throw someException;
-}
-
-final exceptionHandleCallbackPointer =
-    Pointer.fromFunction<Handle Function()>(exceptionHandleCallback);
-
-void testCallbackReturnException() {
-  print("testCallbackReturnException");
-  bool throws = false;
-  try {
-    final result = returnHandleInCallback(exceptionHandleCallbackPointer);
-    print(result);
-  } catch (e) {
-    throws = true;
-    print("caught ($e)");
-    Expect.isTrue(identical(someException, e));
-  }
-  Expect.isTrue(throws);
-}
-
-Object callCAgainFromCallback() {
-  print("callCAgainFromCallback");
-  final s = SomeOtherClass(123);
-  Expect.throws(() => handleReadFieldValue(s));
-  return someObject;
-}
-
-final callCAgainFromCallbackPointer =
-    Pointer.fromFunction<Handle Function()>(callCAgainFromCallback);
-
-void testDeepException() {
-  print("testDeepException");
-  final result = returnHandleInCallback(callCAgainFromCallbackPointer);
-  Expect.isTrue(identical(someObject, result));
-}
-
-Object callCAgainFromCallback2() {
-  print("callCAgainFromCallback2");
-  final s = SomeOtherClass(123);
-  handleReadFieldValue(s); // throws.
-  return someObject;
-}
-
-final callCAgainFromCallbackPointer2 =
-    Pointer.fromFunction<Handle Function()>(callCAgainFromCallback2);
-
-void testDeepException2() {
-  print("testDeepException2");
-  Expect.throws(() => returnHandleInCallback(callCAgainFromCallbackPointer2));
-}
-
-Object returnNullHandleCallback() {
-  print("returnHandleCallback returning null");
-  return null;
-}
-
-final returnNullHandleCallbackPointer =
-    Pointer.fromFunction<Handle Function()>(returnNullHandleCallback);
-
-void testNull() {
-  print("testNull");
-  final result = passObjectToC(null);
-  Expect.isNull(result);
-
-  final result2 = returnHandleInCallback(returnNullHandleCallbackPointer);
-  Expect.isNull(result2);
-}
-
-Object recurseAbove0(int i) {
-  print("recurseAbove0($i)");
-  if (i == 0) {
-    print("throwing");
-    throw someException;
-  }
-  if (i < 0) {
-    print("returning");
-    return someObject;
-  }
-  final result =
-      handleRecursion(SomeClassWithMethod(), recurseAbove0Pointer, i - 1);
-  print("return $i");
-  return result;
-}
-
-final recurseAbove0Pointer =
-    Pointer.fromFunction<Handle Function(Int64)>(recurseAbove0);
-
-class SomeClassWithMethod {
-  // We use this method in the native api, don't tree shake it.
-  @pragma("vm:entry-point")
-  Object a(int i) => recurseAbove0(i);
-}
-
-void testDeepRecursive() {
-  // works on arm.
-  Expect.throws(() {
-    handleRecursion(123, recurseAbove0Pointer, 1);
-  });
-
-  Expect.throws(() {
-    handleRecursion(SomeClassWithMethod(), recurseAbove0Pointer, 1);
-  });
-
-  Expect.throws(() {
-    recurseAbove0(100);
-  });
-
-  final result = recurseAbove0(101);
-  Expect.isTrue(identical(someObject, result));
-}
-
-void testNoHandlePropagateError() {
-  bool throws = false;
-  try {
-    final result = propagateErrorWithoutHandle(exceptionHandleCallbackPointer);
-    print(result);
-  } catch (e) {
-    throws = true;
-    print("caught ($e)");
-    Expect.isTrue(identical(someException, e));
-  }
-  Expect.isTrue(throws);
-}
-
-final testLibrary = dlopenPlatformSpecific("ffi_test_functions");
-
-final passObjectToC = testLibrary.lookupFunction<Handle Function(Handle),
-    Object Function(Object)>("PassObjectToC");
-
-final handleReadFieldValue =
-    testLibrary.lookupFunction<Int64 Function(Handle), int Function(Object)>(
-        "HandleReadFieldValue");
-
-final trueHandle = testLibrary
-    .lookupFunction<Handle Function(), Object Function()>("TrueHandle");
-
-final closureCallbackThroughHandle = testLibrary.lookupFunction<
-    Void Function(Pointer<NativeFunction<Void Function(Handle)>>, Handle),
-    void Function(Pointer<NativeFunction<Void Function(Handle)>>,
-        Object)>("ClosureCallbackThroughHandle");
-
-final returnHandleInCallback = testLibrary.lookupFunction<
-    Handle Function(Pointer<NativeFunction<Handle Function()>>),
-    Object Function(
-        Pointer<NativeFunction<Handle Function()>>)>("ReturnHandleInCallback");
-
-final handleRecursion = testLibrary.lookupFunction<
-    Handle Function(
-        Handle, Pointer<NativeFunction<Handle Function(Int64)>>, Int64),
-    Object Function(Object, Pointer<NativeFunction<Handle Function(Int64)>>,
-        int)>("HandleRecursion");
-
-final propagateErrorWithoutHandle = testLibrary.lookupFunction<
-        Int64 Function(Pointer<NativeFunction<Handle Function()>>),
-        int Function(Pointer<NativeFunction<Handle Function()>>)>(
-    "PropagateErrorWithoutHandle");
diff --git a/tests/ffi_2/vmspecific_highmem_32bit_test.dart b/tests/ffi_2/vmspecific_highmem_32bit_test.dart
deleted file mode 100644
index b0fb8e2c998..00000000000
--- a/tests/ffi_2/vmspecific_highmem_32bit_test.dart
+++ /dev/null
@@ -1,134 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file
-
-// @dart = 2.9
-
-import 'dart:ffi';
-import 'dart:io';
-
-import 'package:expect/expect.dart';
-
-import 'ffi_test_helpers.dart';
-
-// void* mmap(void* addr, size_t length,
-//            int prot, int flags,
-//            int fd, off_t offset)
-typedef MMapNative = Pointer<Uint8> Function(Pointer<Uint8> address, IntPtr len,
-    IntPtr prot, IntPtr flags, IntPtr fd, IntPtr offset);
-typedef MMap = Pointer<Uint8> Function(
-    Pointer<Uint8> address, int len, int prot, int flags, int fd, int offset);
-final mmap = processSymbols.lookupFunction<MMapNative, MMap>('mmap');
-
-// int munmap(void *addr, size_t length)
-typedef MUnMapNative = IntPtr Function(Pointer<Uint8> address, IntPtr len);
-typedef MUnMap = int Function(Pointer<Uint8> address, int len);
-final munmap = processSymbols.lookupFunction<MUnMapNative, MUnMap>('munmap');
-
-final processSymbols = DynamicLibrary.process();
-
-const int kProtRead = 1;
-const int kProtWrite = 2;
-
-const int kMapPrivate = 2;
-const int kMapFixed = 16;
-final int kMapAnonymous = Platform.isMacOS ? 0x1000 : 0x20;
-
-const int kMapFailed = -1;
-
-// On 32-bit platforms the upper 4 bytes should be ignored.
-const int kIgnoreBytesPositive = 0x1122334400000000;
-const int kIgnoreBytesNegative = 0xffddccbb00000000;
-
-void swapBytes(
-    Pointer<Uint8> memoryView, int indexOffset, int indexA, int indexB) {
-  final int oldA = memoryView[indexOffset + indexA];
-  memoryView[indexOffset + indexA] = memoryView[indexOffset + indexB];
-  memoryView[indexOffset + indexB] = oldA;
-}
-
-void testLoadsAndStores(int indexOffset, Pointer<Uint8> memory) {
-  for (int i = 0; i < 10; ++i) {
-    memory[indexOffset + i] = 10 + i;
-  }
-  Expect.listEquals(<int>[10, 11, 12, 13, 14, 15, 16, 17, 18, 19],
-      memory.offsetBy(indexOffset).asTypedList(10));
-
-  for (int i = 0; i < 9; ++i) {
-    swapBytes(memory, indexOffset + 0, i, i + 1);
-  }
-  Expect.listEquals(<int>[11, 12, 13, 14, 15, 16, 17, 18, 19, 10],
-      memory.offsetBy(indexOffset).asTypedList(10));
-  for (int i = 0; i < 9; ++i) {
-    swapBytes(memory, indexOffset + kIgnoreBytesPositive, i, i + 1);
-  }
-  Expect.listEquals(<int>[12, 13, 14, 15, 16, 17, 18, 19, 10, 11],
-      memory.offsetBy(indexOffset).asTypedList(10));
-  for (int i = 0; i < 9; ++i) {
-    swapBytes(memory, indexOffset + kIgnoreBytesNegative, i, i + 1);
-  }
-  Expect.listEquals(<int>[13, 14, 15, 16, 17, 18, 19, 10, 11, 12],
-      memory.offsetBy(indexOffset).asTypedList(10));
-}
-
-void testOnHighOrLowMemory(Pointer<Uint8> memory, int indexOffset) {
-  testLoadsAndStores(indexOffset, memory);
-  testLoadsAndStores(indexOffset, memory.offsetBy(5));
-  testLoadsAndStores(indexOffset, memory.offsetBy(-5));
-  testLoadsAndStores(indexOffset, memory.offsetBy(kIgnoreBytesPositive + 5));
-  testLoadsAndStores(indexOffset, memory.offsetBy(kIgnoreBytesNegative + 5));
-  testLoadsAndStores(indexOffset, memory.offsetBy(kIgnoreBytesPositive - 5));
-  testLoadsAndStores(indexOffset, memory.offsetBy(kIgnoreBytesNegative - 5));
-  final m2 = Pointer<Uint8>.fromAddress(kIgnoreBytesPositive + memory.address);
-  Expect.equals(memory, m2); //# 01: ok
-  Expect.equals(memory.address, m2.address); //# 01: ok
-  testLoadsAndStores(indexOffset, m2);
-  final m3 = Pointer<Uint8>.fromAddress(kIgnoreBytesNegative + memory.address);
-  Expect.equals(memory, m3); //# 01: ok
-  Expect.equals(memory.address, m3.address); //# 01: ok
-  testLoadsAndStores(indexOffset, m3);
-}
-
-const int kPageSize = 4096;
-
-withMMapedAddress(
-    Pointer<Uint8> fixedAddress, void fun(Pointer<Uint8> address)) {
-  final result = mmap(fixedAddress, kPageSize, kProtRead | kProtWrite,
-      kMapAnonymous | kMapFixed | kMapPrivate, 0, 0);
-  if (result.address == kMapFailed) {
-    throw 'Could not mmap @0x${fixedAddress.address.toRadixString(16)}!';
-  }
-  Expect.equals(fixedAddress, result); //# 01: ok
-  Expect.equals(fixedAddress.address, result.address); //# 01: ok
-  try {
-    fun(result);
-  } finally {
-    if (munmap(result, kPageSize) != 0) {
-      throw 'Failed to unmap memory!';
-    }
-  }
-}
-
-main() {
-  final bool is32BitProcess = sizeOf<Pointer<Uint8>>() == 4;
-
-  // User space processes usually have
-  //   * the lower 3 GB available on Linux/Android on 32bit OS
-  //   * full 4 GB available on Linux/Android on 64bit OS
-  //   * full 4 GB available on MacOS
-  // So we choose high and low addresses that fall into lower 3 GB.
-  if (is32BitProcess && !Platform.isWindows) {
-    final highMemoryAddress = Pointer<Uint8>.fromAddress(0xaaaa0000);
-    final lowMemoryAddress = Pointer<Uint8>.fromAddress(0x11110000);
-    withMMapedAddress(lowMemoryAddress, (Pointer<Uint8> lowMemory) {
-      withMMapedAddress(highMemoryAddress, (Pointer<Uint8> highMemory) {
-        testOnHighOrLowMemory(lowMemory, 2048);
-        testOnHighOrLowMemory(highMemory, 2048);
-        testOnHighOrLowMemory(
-            lowMemory, 2048 + highMemory.address - lowMemory.address);
-        testOnHighOrLowMemory(
-            highMemory, 2048 + lowMemory.address - highMemory.address);
-      });
-    });
-  }
-}
diff --git a/tests/ffi_2/vmspecific_leaf_call_test.dart b/tests/ffi_2/vmspecific_leaf_call_test.dart
deleted file mode 100644
index 05937af2b99..00000000000
--- a/tests/ffi_2/vmspecific_leaf_call_test.dart
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// SharedObjects=ffi_test_functions
-
-import 'dart:ffi';
-import 'dart:io';
-
-import 'package:expect/expect.dart';
-
-import 'callback_tests_utils.dart';
-import 'dylib_utils.dart';
-
-DynamicLibrary ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-
-testLeafCall() {
-  // Regular calls should transition generated -> native.
-  final isThreadInGenerated = ffiTestFunctions
-      .lookupFunction<Int8 Function(), int Function()>("IsThreadInGenerated");
-  Expect.equals(0, isThreadInGenerated());
-  // Leaf calls should remain in generated state.
-  final isThreadInGeneratedLeaf = ffiTestFunctions
-      .lookupFunction<Int8 Function(), int Function()>("IsThreadInGenerated",
-          isLeaf: true);
-  Expect.equals(1, isThreadInGeneratedLeaf());
-}
-
-testLeafCallApi() {
-  // Note: This will only crash as expected in debug build mode. In other modes
-  // it's effectively skip.
-  final f = ffiTestFunctions.lookupFunction<Void Function(), void Function()>(
-      "TestLeafCallApi",
-      isLeaf: true);
-  // Calling Dart_.. API is unsafe from leaf calls since we explicitly haven't
-  // made the generated -> native transition.
-  f();
-}
-
-void nop() {}
-
-testCallbackLeaf() {
-  // This should crash with "expected: T->IsAtSafepoint()", since it's unsafe to
-  // do callbacks from leaf calls (otherwise they wouldn't be leaf calls).
-  // Note: This will only crash as expected in debug build mode. In other modes
-  // it's effectively skip.
-  CallbackTest("CallbackLeaf", Pointer.fromFunction<Void Function()>(nop),
-          isLeaf: true)
-      .run();
-}
-
-main() {
-  testLeafCall(); //# 01: ok
-  // These tests terminate the process after successful completion, so we have
-  // to run them separately.
-  //
-  // Since they use signal handlers they only run on Linux.
-  if (Platform.isLinux && !const bool.fromEnvironment("dart.vm.product")) {
-    testLeafCallApi(); //# 02: ok
-    testCallbackLeaf(); //# 03: ok
-  }
-}
diff --git a/tests/ffi_2/vmspecific_native_finalizer_2_test.dart b/tests/ffi_2/vmspecific_native_finalizer_2_test.dart
deleted file mode 100644
index 4f651db1fc6..00000000000
--- a/tests/ffi_2/vmspecific_native_finalizer_2_test.dart
+++ /dev/null
@@ -1,97 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// SharedObjects=ffi_test_functions
-//
-// VMOptions=--trace-finalizers
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import 'package:expect/expect.dart';
-import 'package:ffi/ffi.dart';
-
-import 'dylib_utils.dart';
-import 'ffi_test_helpers.dart';
-
-void main() {
-  testFinalizerRuns();
-  testFinalizerDetach();
-  testDoubleDetach();
-  testDetachNonDetach();
-  testWrongArguments();
-}
-
-DynamicLibrary ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-
-void testFinalizerRuns() {
-  using((Arena allocator) {
-    final token = allocator<IntPtr>();
-    createAndLoseFinalizable(token);
-    doGC();
-    Expect.equals(42, token.value);
-  });
-}
-
-void createAndLoseFinalizable(Pointer<IntPtr> token) {
-  final myFinalizable = MyFinalizable();
-  setTokenFinalizer.attach(myFinalizable, token.cast());
-  Expect.equals(0, token.value);
-}
-
-void testFinalizerDetach() {
-  using((Arena allocator) {
-    final token = allocator<IntPtr>();
-    attachAndDetach(token);
-    doGC();
-    Expect.equals(0, token.value);
-  });
-}
-
-class Detach {
-  String identifier;
-
-  Detach(this.identifier);
-}
-
-void attachAndDetach(Pointer<IntPtr> token) {
-  final myFinalizable = MyFinalizable();
-  final detach = Detach('detach 123');
-  setTokenFinalizer.attach(myFinalizable, token.cast(), detach: detach);
-  setTokenFinalizer.detach(detach);
-  Expect.equals(0, token.value);
-}
-
-void testDoubleDetach() {
-  using((Arena allocator) {
-    final token = allocator<IntPtr>();
-    final myFinalizable = MyFinalizable();
-    final detach = Detach('detach 321');
-    setTokenFinalizer.attach(myFinalizable, token.cast(), detach: detach);
-    setTokenFinalizer.detach(detach);
-    setTokenFinalizer.detach(detach);
-    Expect.equals(0, token.value);
-  });
-}
-
-void testDetachNonDetach() {
-  final detach = Detach('detach 456');
-  setTokenFinalizer.detach(detach);
-  setTokenFinalizer.detach(detach);
-}
-
-void testWrongArguments() {
-  using((Arena allocator) {
-    final token = allocator<IntPtr>().cast<Void>();
-    Expect.throws(() {
-      final myFinalizable = MyFinalizable();
-      setTokenFinalizer.attach(myFinalizable, token, externalSize: -1024);
-    });
-    Expect.throws(() {
-      final myFinalizable = MyFinalizable();
-      setTokenFinalizer.attach(myFinalizable, token, detach: 123);
-    });
-  });
-}
diff --git a/tests/ffi_2/vmspecific_native_finalizer_isolate_groups_test.dart b/tests/ffi_2/vmspecific_native_finalizer_isolate_groups_test.dart
deleted file mode 100644
index c68f4a39ece..00000000000
--- a/tests/ffi_2/vmspecific_native_finalizer_isolate_groups_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// SharedObjects=ffi_test_functions
-//
-// VMOptions=--trace-finalizers
-
-// @dart = 2.9
-
-import 'dart:async';
-import 'dart:ffi';
-import 'dart:io';
-import 'dart:isolate';
-
-import 'package:expect/expect.dart';
-import 'package:ffi/ffi.dart';
-
-import 'ffi_test_helpers.dart';
-
-void main(List<String> args, int address) async {
-  if (address != null) {
-    await mainHelper(args, address);
-  } else {
-    await testFinalizerRunsOnIsolateGroupShutdown();
-  }
-}
-
-Future mainHelper(List<String> args, int address) async {
-  final token = Pointer<IntPtr>.fromAddress(address);
-  createAndLoseFinalizable(token);
-  print('Isolate done.');
-}
-
-Future<void> testFinalizerRunsOnIsolateGroupShutdown() async {
-  await using((Arena allocator) async {
-    final token = allocator<IntPtr>();
-    Expect.equals(0, token.value);
-    final portExitMessage = ReceivePort();
-    await Isolate.spawnUri(
-      Platform.script,
-      [],
-      token.address,
-      onExit: portExitMessage.sendPort,
-    );
-    await portExitMessage.first;
-    print('Helper isolate has exited.');
-
-    Expect.equals(42, token.value);
-
-    print('End of test, shutting down.');
-  });
-}
diff --git a/tests/ffi_2/vmspecific_native_finalizer_isolates_test.dart b/tests/ffi_2/vmspecific_native_finalizer_isolates_test.dart
deleted file mode 100644
index 94a2243d8d2..00000000000
--- a/tests/ffi_2/vmspecific_native_finalizer_isolates_test.dart
+++ /dev/null
@@ -1,85 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// SharedObjects=ffi_test_functions
-//
-// VMOptions=--trace-finalizers
-
-// @dart = 2.9
-
-import 'dart:async';
-import 'dart:ffi';
-import 'dart:isolate';
-
-import 'package:expect/expect.dart';
-import 'package:ffi/ffi.dart';
-
-import 'dylib_utils.dart';
-import 'ffi_test_helpers.dart';
-
-void main() async {
-  await testSendAndExitFinalizable();
-  await testSendAndExitFinalizer();
-  await testFinalizerRunsOnIsolateShutdown();
-  print('End of test, shutting down.');
-}
-
-DynamicLibrary ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-
-void runIsolateAttachFinalizer(int address) {
-  final token = Pointer<IntPtr>.fromAddress(address);
-  createAndLoseFinalizable(token);
-  print('Isolate done.');
-}
-
-Future<void> testFinalizerRunsOnIsolateShutdown() async {
-  await using((Arena allocator) async {
-    final token = allocator<IntPtr>();
-    Expect.equals(0, token.value);
-    final portExitMessage = ReceivePort();
-    await Isolate.spawn(
-      runIsolateAttachFinalizer,
-      token.address,
-      onExit: portExitMessage.sendPort,
-    );
-    await portExitMessage.first;
-
-    doGC();
-    Expect.equals(42, token.value);
-  });
-}
-
-Future<void> testSendAndExitFinalizable() async {
-  final receivePort = ReceivePort();
-  await Isolate.spawn(
-    (SendPort sendPort) {
-      try {
-        Isolate.exit(sendPort, MyFinalizable());
-      } catch (e) {
-        print('Expected exception: $e.');
-        Isolate.exit(sendPort, e.toString());
-      }
-    },
-    receivePort.sendPort,
-  );
-  final result = await receivePort.first;
-  Expect.contains("Invalid argument: is unsendable", result);
-}
-
-Future<void> testSendAndExitFinalizer() async {
-  final receivePort = ReceivePort();
-  await Isolate.spawn(
-    (SendPort sendPort) {
-      try {
-        Isolate.exit(sendPort, MyFinalizable());
-      } catch (e) {
-        print('Expected exception: $e.');
-        Isolate.exit(sendPort, e.toString());
-      }
-    },
-    receivePort.sendPort,
-  );
-  final result = await receivePort.first;
-  Expect.contains("Invalid argument: is unsendable", result);
-}
diff --git a/tests/ffi_2/vmspecific_native_finalizer_test.dart b/tests/ffi_2/vmspecific_native_finalizer_test.dart
deleted file mode 100644
index f596609cf97..00000000000
--- a/tests/ffi_2/vmspecific_native_finalizer_test.dart
+++ /dev/null
@@ -1,89 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-import 'dart:io';
-
-import 'dylib_utils.dart';
-import 'ffi_test_helpers.dart';
-
-void main() {
-  testMallocFree();
-  print('end of test, shutting down');
-}
-
-DynamicLibrary ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-
-void testMallocFree() {
-  if (Platform.isWindows) {
-    // malloc and free not supported.
-    return;
-  }
-
-  print('freePtr $freePtr');
-
-  {
-    final resource = MyNativeResource();
-    resource.close();
-    doGC();
-  }
-
-  {
-    MyNativeResource();
-    doGC();
-  }
-
-  // Run finalizer on shutdown (or on a GC that runs before shutdown).
-  MyNativeResource();
-}
-
-class MyNativeResource implements Finalizable {
-  final Pointer<Void> pointer;
-
-  bool _closed = false;
-
-  MyNativeResource._(this.pointer, {int externalSize}) {
-    print('pointer $pointer');
-    freeFinalizer.attach(this, pointer,
-        externalSize: externalSize, detach: this);
-  }
-
-  factory MyNativeResource() {
-    const num = 1;
-    const size = 16;
-    final pointer = calloc(num, size);
-    return MyNativeResource._(pointer, externalSize: size);
-  }
-
-  /// Eagerly stop using the native resource. Cancelling the finalizer.
-  void close() {
-    _closed = true;
-    freeFinalizer.detach(this);
-    free(pointer);
-  }
-
-  void useResource() {
-    if (_closed) {
-      throw UnsupportedError('The native resource has already been released');
-    }
-    print(pointer.address);
-  }
-}
-
-final DynamicLibrary stdlib = DynamicLibrary.process();
-
-typedef PosixCallocNative = Pointer<Void> Function(IntPtr num, IntPtr size);
-typedef PosixCalloc = Pointer<Void> Function(int num, int size);
-final PosixCalloc calloc =
-    stdlib.lookupFunction<PosixCallocNative, PosixCalloc>('calloc');
-
-typedef PosixFreeNative = Void Function(Pointer<Void>);
-final freePtr = stdlib.lookup<NativeFunction<PosixFreeNative>>('free');
-final free = freePtr.asFunction<void Function(Pointer<Void>)>();
-
-final freeFinalizer = NativeFinalizer(freePtr);
diff --git a/tests/ffi_2/vmspecific_null_test.dart b/tests/ffi_2/vmspecific_null_test.dart
deleted file mode 100644
index f974f956dc4..00000000000
--- a/tests/ffi_2/vmspecific_null_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program for testing dart:ffi with null values.
-//
-// Separated into a separate file to make NNBD testing easier.
-//
-// SharedObjects=ffi_test_dynamic_library ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import 'package:expect/expect.dart';
-
-import 'dylib_utils.dart';
-
-void main() {
-  testOpen();
-  testEquality();
-}
-
-void testOpen() {
-  DynamicLibrary l = dlopenPlatformSpecific("ffi_test_dynamic_library");
-  Expect.notEquals(null, l);
-}
-
-typedef NativeDoubleUnOp = Double Function(Double);
-
-typedef DoubleUnOp = double Function(double);
-
-void testEquality() {
-  DynamicLibrary l = dlopenPlatformSpecific("ffi_test_dynamic_library");
-  Expect.notEquals(l, null);
-  Expect.notEquals(null, l);
-}
diff --git a/tests/ffi_2/vmspecific_object_gc_test.dart b/tests/ffi_2/vmspecific_object_gc_test.dart
deleted file mode 100644
index 6f5bfe7c2b0..00000000000
--- a/tests/ffi_2/vmspecific_object_gc_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Tests GC of Pointer objects.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-
-import 'dylib_utils.dart';
-
-DynamicLibrary ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-
-final triggerGc = ffiTestFunctions
-    .lookupFunction<Void Function(), void Function()>("TriggerGC");
-
-void main() async {
-  testGC();
-}
-
-dynamic bar;
-
-Future<void> testGC() async {
-  bar = Pointer<Int8>.fromAddress(11);
-
-  // Verify that the objects manufactured by 'fromAddress' can be scanned by the
-  // GC.
-  triggerGc();
-
-  Expect.equals(11, bar.address);
-}
diff --git a/tests/ffi_2/vmspecific_regress_37100_test.dart b/tests/ffi_2/vmspecific_regress_37100_test.dart
deleted file mode 100644
index 7f4808c9771..00000000000
--- a/tests/ffi_2/vmspecific_regress_37100_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:expect/expect.dart";
-
-import 'dylib_utils.dart';
-
-class EVP_MD extends Opaque {}
-
-DynamicLibrary ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-
-final EVP_sha1 = ffiTestFunctions.lookupFunction<Pointer<EVP_MD> Function(),
-    Pointer<EVP_MD> Function()>('LargePointer');
-
-main() {
-  int result = EVP_sha1().address;
-  // On 32 bit only the lowest 32 bits are returned, so only test those.
-  result &= 0x00000000FFFFFFFF;
-  Expect.equals(0x0000000082000000, result);
-}
diff --git a/tests/ffi_2/vmspecific_regress_37511_callbacks_test.dart b/tests/ffi_2/vmspecific_regress_37511_callbacks_test.dart
deleted file mode 100644
index 3e6708114a5..00000000000
--- a/tests/ffi_2/vmspecific_regress_37511_callbacks_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program for testing dart:ffi struct pointers.
-//
-// VMOptions=--deterministic
-//
-// SharedObjects=ffi_test_functions
-//
-// TODO(37295): Merge this file with regress_37511_test.dart when callback
-// support lands.
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import 'ffi_test_helpers.dart';
-
-/// Estimate of how many allocations functions in `functionsToTest` do at most.
-const gcAfterNAllocationsMax = 10;
-
-void main() {
-  for (Function() f in functionsToTest) {
-    f(); // Ensure code is compiled.
-
-    for (int n = 1; n <= gcAfterNAllocationsMax; n++) {
-      collectOnNthAllocation(n);
-      f();
-    }
-  }
-}
-
-final List<Function()> functionsToTest = [
-  // Callback trampolines.
-  doFromFunction,
-  () => callbackSmallDouble(dartFunctionPointer),
-];
-
-// Callback trampoline helpers.
-typedef NativeCallbackTest = Int32 Function(Pointer);
-typedef NativeCallbackTestFn = int Function(Pointer);
-
-final callbackSmallDouble =
-    ffiTestFunctions.lookupFunction<NativeCallbackTest, NativeCallbackTestFn>(
-        "TestSimpleMultiply");
-
-typedef SimpleMultiplyType = Double Function(Double);
-double simpleMultiply(double x) => x * 1.337;
-
-final doFromFunction =
-    () => Pointer.fromFunction<SimpleMultiplyType>(simpleMultiply, 0.0);
-
-final dartFunctionPointer = doFromFunction();
diff --git a/tests/ffi_2/vmspecific_regress_37511_test.dart b/tests/ffi_2/vmspecific_regress_37511_test.dart
deleted file mode 100644
index 290c4e80b31..00000000000
--- a/tests/ffi_2/vmspecific_regress_37511_test.dart
+++ /dev/null
@@ -1,108 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program for testing dart:ffi struct pointers.
-//
-// VMOptions=--deterministic
-//
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import 'dylib_utils.dart';
-import 'ffi_test_helpers.dart';
-
-/// Estimate of how many allocations functions in `functionsToTest` do at most.
-const gcAfterNAllocationsMax = 10;
-
-void main() {
-  for (Function() f in functionsToTest) {
-    f(); // Ensure code is compiled.
-
-    for (int n = 1; n <= gcAfterNAllocationsMax; n++) {
-      collectOnNthAllocation(n);
-      f();
-    }
-  }
-}
-
-final List<Function()> functionsToTest = [
-  // Pointer operations.
-  () => highAddressPointer.cast<Double>(),
-  () => Pointer.fromAddress(highAddressPointer.address),
-  () => highAddressPointer.address,
-  () => highAddressPointer.elementAt(1),
-  () => highAddressPointer.offsetBy(1),
-  () => highAddressPointer.asTypedList(1),
-
-  // DynamicLibrary operations.
-  doDlopen,
-  doDlsym, // Includes `asFunction`.
-  () => ffiTestFunctions.handle,
-
-  // Trampolines.
-  () => sumManyIntsOdd(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, mint64bit),
-  () => sumManyDoubles(1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0),
-  minInt64,
-  minInt32,
-  smallDouble,
-  largePointer,
-
-  // Callback trampolines.
-  //
-  // In regress_37511_callbacks_test.dart because callbacks are not supported
-  // in AOT yet.
-];
-
-// Pointer operation helpers.
-const mint32bit = 0xFFFFFFF0;
-const mint64bit = 0x7FFFFFFFFFFFFFF0;
-
-final int highAddress = sizeOf<IntPtr>() == 4 ? mint32bit : mint64bit;
-
-final Pointer<Int64> highAddressPointer = Pointer.fromAddress(highAddress);
-
-// Dynamic library operation helpers.
-final doDlopen = () => dlopenPlatformSpecific("ffi_test_functions");
-
-final doDlsym = () => ffiTestFunctions
-    .lookupFunction<NativeNullaryOp, NullaryOpVoid>("TriggerGC");
-
-// Trampoline helpers.
-typedef NativeUndenaryOp = IntPtr Function(IntPtr, IntPtr, IntPtr, IntPtr,
-    IntPtr, IntPtr, IntPtr, IntPtr, IntPtr, IntPtr, IntPtr);
-typedef UndenaryOp = int Function(
-    int, int, int, int, int, int, int, int, int, int, int);
-
-final UndenaryOp sumManyIntsOdd = ffiTestFunctions
-    .lookupFunction<NativeUndenaryOp, UndenaryOp>("SumManyIntsOdd");
-
-typedef NativeDoubleDecenaryOp = Double Function(Double, Double, Double, Double,
-    Double, Double, Double, Double, Double, Double);
-typedef DoubleDecenaryOp = double Function(double, double, double, double,
-    double, double, double, double, double, double);
-
-final DoubleDecenaryOp sumManyDoubles = ffiTestFunctions
-    .lookupFunction<NativeDoubleDecenaryOp, DoubleDecenaryOp>("SumManyDoubles");
-
-typedef NativeNullaryOp64 = Int64 Function();
-typedef NativeNullaryOp32 = Int32 Function();
-typedef NativeNullaryOpDouble = Double Function();
-typedef NullaryOpPtr = Pointer<Void> Function();
-typedef NullaryOp = int Function();
-typedef NullaryOpDbl = double Function();
-
-final minInt64 =
-    ffiTestFunctions.lookupFunction<NativeNullaryOp64, NullaryOp>("MinInt64");
-
-final minInt32 =
-    ffiTestFunctions.lookupFunction<NativeNullaryOp32, NullaryOp>("MinInt32");
-
-final smallDouble = ffiTestFunctions
-    .lookupFunction<NativeNullaryOpDouble, NullaryOpDbl>("SmallDouble");
-
-final largePointer =
-    ffiTestFunctions.lookupFunction<NullaryOpPtr, NullaryOpPtr>("LargePointer");
diff --git a/tests/ffi_2/vmspecific_regress_37780_test.dart b/tests/ffi_2/vmspecific_regress_37780_test.dart
deleted file mode 100644
index 6284cc51c20..00000000000
--- a/tests/ffi_2/vmspecific_regress_37780_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import 'dylib_utils.dart';
-
-DynamicLibrary ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
-
-final triggerGc = ffiTestFunctions
-    .lookupFunction<Void Function(), void Function()>("TriggerGC");
-
-main(List<String> args) {
-  final foo = [Float(), Double(), Uint8()];
-  triggerGc();
-  print(foo);
-}
diff --git a/tests/ffi_2/vmspecific_regress_38993_test.dart b/tests/ffi_2/vmspecific_regress_38993_test.dart
deleted file mode 100644
index e9266cce80d..00000000000
--- a/tests/ffi_2/vmspecific_regress_38993_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Tests a compile time error that should not crash the analyzer or CFE.
-
-// @dart = 2.9
-
-import "dart:ffi";
-
-class C extends Struct {
-  dynamic x; //# 1: compile-time error
-
-  Pointer notEmpty;
-}
-
-main() {}
diff --git a/tests/ffi_2/vmspecific_send_port_id_test.dart b/tests/ffi_2/vmspecific_send_port_id_test.dart
deleted file mode 100644
index 9051878ff8a..00000000000
--- a/tests/ffi_2/vmspecific_send_port_id_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import 'dart:ffi';
-import 'dart:isolate';
-
-import 'package:expect/expect.dart';
-
-typedef Dart_PostIntegerNFT = IntPtr Function(Int64 port, Int64 message);
-typedef Dart_PostIntegerFT = int Function(int port, int message);
-
-main() async {
-  const int message = 112344556677888;
-
-  final completer = Completer();
-
-  final receivePort = ReceivePort()
-    ..listen((receivedMessage) => completer.complete(receivedMessage));
-
-  final executableSymbols = DynamicLibrary.executable();
-
-  final postInteger =
-      executableSymbols.lookupFunction<Dart_PostIntegerNFT, Dart_PostIntegerFT>(
-          "Dart_PostInteger");
-
-  // Issue(dartbug.com/38545): The dart:ffi doesn't have a bool type yet.
-  final bool success =
-      postInteger(receivePort.sendPort.nativePort, message) != 0;
-  Expect.isTrue(success);
-
-  final postedMessage = await completer.future;
-  Expect.equals(message, postedMessage);
-
-  receivePort.close();
-}
diff --git a/tests/ffi_2/vmspecific_static_checks_test.dart b/tests/ffi_2/vmspecific_static_checks_test.dart
deleted file mode 100644
index 78897506b62..00000000000
--- a/tests/ffi_2/vmspecific_static_checks_test.dart
+++ /dev/null
@@ -1,1315 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program for testing dart:ffi extra checks
-//
-// SharedObjects=ffi_test_dynamic_library ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import "package:ffi/ffi.dart";
-
-import 'dylib_utils.dart';
-
-void main() {
-  testGetGeneric();
-  testGetGeneric2();
-  testGetVoid();
-  testGetNativeFunction();
-  testGetNativeType();
-  testGetTypeMismatch();
-  testSetGeneric();
-  testSetGeneric2();
-  testSetVoid();
-  testSetNativeFunction();
-  testSetNativeType();
-  testSetTypeMismatch();
-  testAsFunctionGeneric();
-  testAsFunctionGeneric2();
-  testAsFunctionWrongNativeFunctionSignature();
-  testAsFunctionTypeMismatch();
-  testFromFunctionGeneric();
-  testFromFunctionGeneric2();
-  testFromFunctionWrongNativeFunctionSignature();
-  testFromFunctionTypeMismatch();
-  testFromFunctionClosure();
-  testFromFunctionTearOff();
-  testFromFunctionAbstract();
-  testFromFunctionFunctionExceptionValueMustBeConst();
-  testLookupFunctionGeneric();
-  testLookupFunctionGeneric2();
-  testLookupFunctionWrongNativeFunctionSignature();
-  testLookupFunctionTypeMismatch();
-  testLookupFunctionPointervoid();
-  testLookupFunctionPointerNFdyn();
-  testHandleVariance();
-  testEmptyStructLookupFunctionArgument();
-  testEmptyStructLookupFunctionReturn();
-  testEmptyStructAsFunctionArgument();
-  testEmptyStructAsFunctionReturn();
-  testEmptyStructFromFunctionArgument();
-  testEmptyStructFromFunctionReturn();
-  testAllocateGeneric();
-  testAllocateNativeType();
-  testRefStruct();
-  testSizeOfGeneric();
-  testSizeOfNativeType();
-  testSizeOfHandle();
-  testElementAtGeneric();
-  testElementAtNativeType();
-  testLookupFunctionIsLeafMustBeConst();
-  testAsFunctionIsLeafMustBeConst();
-  testLookupFunctionTakesHandle();
-  testAsFunctionTakesHandle();
-  testLookupFunctionReturnsHandle();
-  testAsFunctionReturnsHandle();
-}
-
-typedef Int8UnOp = Int8 Function(Int8);
-typedef IntUnOp = int Function(int);
-
-void testGetGeneric() {
-  int generic(Pointer p) {
-    int result;
-    result = p.value;
-    //         ^^^^^
-    // [cfe] The getter 'value' isn't defined for the class 'Pointer<NativeType>'.
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    return result;
-  }
-
-  Pointer<Int8> p = calloc();
-  p.value = 123;
-  Pointer loseType = p;
-  generic(loseType);
-  calloc.free(p);
-}
-
-void testGetGeneric2() {
-  T generic<T extends Object>() {
-    Pointer<Int8> p = calloc();
-    p.value = 123;
-    T result;
-    result = p.value;
-    //       ^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-    //         ^
-    // [cfe] A value of type 'int' can't be assigned to a variable of type 'T'.
-    calloc.free(p);
-    return result;
-  }
-
-  generic<int>();
-}
-
-void testGetVoid() {
-  Pointer<IntPtr> p1 = calloc();
-  Pointer<Void> p2 = p1.cast();
-
-  p2.value;
-  // ^^^^^
-  // [cfe] The getter 'value' isn't defined for the class 'Pointer<Void>'.
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-
-  calloc.free(p1);
-}
-
-void testGetNativeFunction() {
-  Pointer<NativeFunction<Int8UnOp>> p = Pointer.fromAddress(1337);
-  IntUnOp f = p.value;
-  //            ^^^^^
-  // [cfe] The getter 'value' isn't defined for the class 'Pointer<NativeFunction<Int8 Function(Int8)>>'.
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-}
-
-void testGetNativeType() {
-  // Is it possible to obtain a Pointer<NativeType> at all?
-}
-
-void testGetTypeMismatch() {
-  Pointer<Pointer<Int16>> p = calloc();
-  Pointer<Int16> typedNull = nullptr;
-  p.value = typedNull;
-
-  // this fails to compile due to type mismatch
-  Pointer<Int8> p2 = p.value;
-  //                   ^
-  // [cfe] A value of type 'Pointer<Int16>' can't be assigned to a variable of type 'Pointer<Int8>'.
-  //                 ^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-
-  calloc.free(p);
-}
-
-void testSetGeneric() {
-  void generic(Pointer p) {
-    p.value = 123;
-    //^^^^^
-    // [cfe] The setter 'value' isn't defined for the class 'Pointer<NativeType>'.
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_SETTER
-  }
-
-  Pointer<Int8> p = calloc();
-  p.value = 123;
-  Pointer loseType = p;
-  generic(loseType);
-  calloc.free(p);
-}
-
-void testSetGeneric2() {
-  void generic<T extends Object>(T arg) {
-    Pointer<Int8> p = calloc();
-    p.value = arg;
-    //        ^^^
-    // [cfe] A value of type 'T' can't be assigned to a variable of type 'int'.
-    // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-    calloc.free(p);
-  }
-
-  generic<int>(123);
-}
-
-void testSetVoid() {
-  Pointer<IntPtr> p1 = calloc();
-  Pointer<Void> p2 = p1.cast();
-
-  p2.value = 1234;
-  // ^^^^^
-  // [cfe] The setter 'value' isn't defined for the class 'Pointer<Void>'.
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_SETTER
-
-  calloc.free(p1);
-}
-
-void testSetNativeFunction() {
-  Pointer<NativeFunction<Int8UnOp>> p = Pointer.fromAddress(1337);
-  IntUnOp f = (a) => a + 1;
-  p.value = f;
-  //^^^^^
-  // [cfe] The setter 'value' isn't defined for the class 'Pointer<NativeFunction<Int8 Function(Int8)>>'.
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_SETTER
-}
-
-void testSetNativeType() {
-  // Is it possible to obtain a Pointer<NativeType> at all?
-}
-
-void testSetTypeMismatch() {
-  // the pointer to pointer types must match up
-  Pointer<Int8> pHelper = calloc();
-  pHelper.value = 123;
-
-  Pointer<Pointer<Int16>> p = calloc();
-
-  // this fails to compile due to type mismatch
-  p.value = pHelper;
-  //        ^^^^^^^
-  // [cfe] A value of type 'Pointer<Int8>' can't be assigned to a variable of type 'Pointer<Int16>'.
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-
-  calloc.free(pHelper);
-  calloc.free(p);
-}
-
-void testAsFunctionGeneric() {
-  T generic<T extends Function>() {
-    Pointer<NativeFunction<Int8UnOp>> p = Pointer.fromAddress(1337);
-    Function f;
-    f = p.asFunction<T>();
-    //    ^
-    // [cfe] Expected type 'T' to be 'int Function(int)', which is the Dart type corresponding to 'NativeFunction<Int8 Function(Int8)>'.
-    //               ^
-    // [analyzer] COMPILE_TIME_ERROR.NON_CONSTANT_TYPE_ARGUMENT
-    return f;
-  }
-
-  generic<IntUnOp>();
-}
-
-void testAsFunctionGeneric2() {
-  generic(Pointer<NativeFunction> p) {
-    Function f;
-    f = p.asFunction<IntUnOp>();
-    //    ^
-    // [cfe] Expected type 'NativeFunction<Function>' to be a valid and instantiated subtype of 'NativeType'.
-    //               ^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.NON_NATIVE_FUNCTION_TYPE_ARGUMENT_TO_POINTER
-    return f;
-  }
-
-  Pointer<NativeFunction<Int8UnOp>> p = Pointer.fromAddress(1337);
-  generic(p);
-}
-
-void testAsFunctionWrongNativeFunctionSignature() {
-  Pointer<NativeFunction<IntUnOp>> p;
-  Function f = p.asFunction<IntUnOp>();
-  //             ^
-  // [cfe] Expected type 'NativeFunction<int Function(int)>' to be a valid and instantiated subtype of 'NativeType'.
-  //                        ^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.NON_NATIVE_FUNCTION_TYPE_ARGUMENT_TO_POINTER
-}
-
-typedef IntBinOp = int Function(int, int);
-
-void testAsFunctionTypeMismatch() {
-  Pointer<NativeFunction<Int8UnOp>> p = Pointer.fromAddress(1337);
-  IntBinOp f = p.asFunction();
-  //           ^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.MUST_BE_A_SUBTYPE
-  //             ^
-  // [cfe] Expected type 'int Function(int, int)' to be 'int Function(int)', which is the Dart type corresponding to 'NativeFunction<Int8 Function(Int8)>'.
-}
-
-typedef NativeDoubleUnOp = Double Function(Double);
-typedef DoubleUnOp = double Function(double);
-
-double myTimesThree(double d) => d * 3;
-
-int myTimesFour(int i) => i * 4;
-
-void testFromFunctionGeneric() {
-  Pointer<NativeFunction> generic<T extends Function>(T f) {
-    Pointer<NativeFunction<NativeDoubleUnOp>> result;
-    result = Pointer.fromFunction(f);
-    //                            ^
-    // [cfe] fromFunction expects a static function as parameter. dart:ffi only supports calling static Dart functions from native code. Closures and tear-offs are not supported because they can capture context.
-    // [analyzer] COMPILE_TIME_ERROR.MUST_BE_A_SUBTYPE
-    return result;
-  }
-
-  generic(myTimesThree);
-}
-
-void testFromFunctionGeneric2() {
-  Pointer<NativeFunction<T>> generic<T extends Function>() {
-    Pointer<NativeFunction<T>> result;
-    result = Pointer.fromFunction(myTimesThree);
-    //               ^^^^^^^^^^^^
-    // [cfe] Expected type 'NativeFunction<T>' to be a valid and instantiated subtype of 'NativeType'.
-    // [analyzer] COMPILE_TIME_ERROR.MUST_BE_A_NATIVE_FUNCTION_TYPE
-    return result;
-  }
-
-  generic<NativeDoubleUnOp>();
-}
-
-void testFromFunctionWrongNativeFunctionSignature() {
-  Pointer.fromFunction<IntUnOp>(myTimesFour);
-  //                   ^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.MUST_BE_A_NATIVE_FUNCTION_TYPE
-  //      ^
-  // [cfe] Expected type 'NativeFunction<int Function(int)>' to be a valid and instantiated subtype of 'NativeType'.
-}
-
-void testFromFunctionTypeMismatch() {
-  Pointer<NativeFunction<NativeDoubleUnOp>> p;
-  p = Pointer.fromFunction(myTimesFour);
-  //                       ^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.MUST_BE_A_SUBTYPE
-  //          ^
-  // [cfe] Expected type 'int Function(int)' to be 'double Function(double)', which is the Dart type corresponding to 'NativeFunction<Double Function(Double)>'.
-}
-
-void testFromFunctionClosure() {
-  DoubleUnOp someClosure = (double z) => z / 27.0;
-  Pointer<NativeFunction<NativeDoubleUnOp>> p;
-  p = Pointer.fromFunction(someClosure);
-  //          ^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.MISSING_EXCEPTION_VALUE
-  //                       ^
-  // [cfe] fromFunction expects a static function as parameter. dart:ffi only supports calling static Dart functions from native code. Closures and tear-offs are not supported because they can capture context.
-}
-
-class X {
-  double tearoff(double d) => d / 27.0;
-}
-
-void testFromFunctionTearOff() {
-  DoubleUnOp fld = X().tearoff;
-  Pointer<NativeFunction<NativeDoubleUnOp>> p;
-  p = Pointer.fromFunction(fld);
-  //          ^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.MISSING_EXCEPTION_VALUE
-  //                       ^
-  // [cfe] fromFunction expects a static function as parameter. dart:ffi only supports calling static Dart functions from native code. Closures and tear-offs are not supported because they can capture context.
-}
-
-void testFromFunctionAbstract() {
-  Pointer.fromFunction<Function>(testFromFunctionAbstract);
-  //                   ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.MUST_BE_A_NATIVE_FUNCTION_TYPE
-  //      ^
-  // [cfe] Expected type 'NativeFunction<Function>' to be a valid and instantiated subtype of 'NativeType'.
-}
-
-void testFromFunctionFunctionExceptionValueMustBeConst() {
-  final notAConst = 1.1;
-  Pointer<NativeFunction<NativeDoubleUnOp>> p;
-  p = Pointer.fromFunction(myTimesThree, notAConst);
-  //                                     ^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_MUST_BE_A_CONSTANT
-  //          ^
-  // [cfe] Exceptional return value must be a constant.
-}
-
-void testLookupFunctionGeneric() {
-  Function generic<T extends Function>() {
-    DynamicLibrary l = dlopenPlatformSpecific("ffi_test_dynamic_library");
-    Function result;
-    result = l.lookupFunction<T, DoubleUnOp>("cos");
-    //                        ^
-    // [analyzer] COMPILE_TIME_ERROR.MUST_BE_A_NATIVE_FUNCTION_TYPE
-    //         ^
-    // [cfe] Expected type 'NativeFunction<T>' to be a valid and instantiated subtype of 'NativeType'.
-    return result;
-  }
-
-  generic<NativeDoubleUnOp>();
-}
-
-void testLookupFunctionGeneric2() {
-  Function generic<T extends Function>() {
-    DynamicLibrary l = dlopenPlatformSpecific("ffi_test_dynamic_library");
-    Function result;
-    result = l.lookupFunction<NativeDoubleUnOp, T>("cos");
-    //                                          ^
-    // [analyzer] COMPILE_TIME_ERROR.MUST_BE_A_SUBTYPE
-    //         ^
-    // [cfe] Expected type 'T' to be 'double Function(double)', which is the Dart type corresponding to 'NativeFunction<Double Function(Double)>'.
-    return result;
-  }
-
-  generic<DoubleUnOp>();
-}
-
-void testLookupFunctionWrongNativeFunctionSignature() {
-  DynamicLibrary l = dlopenPlatformSpecific("ffi_test_dynamic_library");
-  l.lookupFunction<IntUnOp, IntUnOp>("cos");
-  //               ^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.MUST_BE_A_NATIVE_FUNCTION_TYPE
-  //^
-  // [cfe] Expected type 'NativeFunction<int Function(int)>' to be a valid and instantiated subtype of 'NativeType'.
-}
-
-void testLookupFunctionTypeMismatch() {
-  DynamicLibrary l = dlopenPlatformSpecific("ffi_test_dynamic_library");
-  l.lookupFunction<NativeDoubleUnOp, IntUnOp>("cos");
-  //                                 ^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.MUST_BE_A_SUBTYPE
-  //^
-  // [cfe] Expected type 'int Function(int)' to be 'double Function(double)', which is the Dart type corresponding to 'NativeFunction<Double Function(Double)>'.
-}
-
-typedef PointervoidN = Void Function(Pointer<void>);
-typedef PointervoidD = void Function(Pointer<void>);
-
-void testLookupFunctionPointervoid() {
-  DynamicLibrary l = dlopenPlatformSpecific("ffi_test_dynamic_library");
-  // TODO(https://dartbug.com/44593): This should be a compile-time error in CFE.
-  // l.lookupFunction<PointervoidN, PointervoidD>("cos");
-}
-
-typedef PointerNFdynN = Void Function(Pointer<NativeFunction>);
-typedef PointerNFdynD = void Function(Pointer<NativeFunction>);
-
-void testLookupFunctionPointerNFdyn() {
-  DynamicLibrary l = dlopenPlatformSpecific("ffi_test_dynamic_library");
-  // TODO(https://dartbug.com/44594): Should this be an error or not?
-  // l.lookupFunction<PointerNFdynN, PointerNFdynD>("cos");
-}
-
-// error on missing field annotation
-class TestStruct extends Struct {
-  @Double()
-  double x;
-
-  /**/ double y;
-  //   ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.MISSING_ANNOTATION_ON_STRUCT_FIELD
-  //          ^
-  // [cfe] Field 'y' requires exactly one annotation to declare its native type, which cannot be Void. dart:ffi Structs and Unions cannot have regular Dart fields.
-}
-
-// Cannot extend structs.
-class TestStruct3 extends TestStruct {}
-//    ^^^^^^^^^^^
-// [cfe] Class 'TestStruct' cannot be extended or implemented.
-// [cfe] TestStruct 'TestStruct3' is empty. Empty structs and unions are undefined behavior.
-//                        ^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_STRUCT_CLASS
-
-// error on double annotation
-class TestStruct4 extends Struct {
-  @Double()
-  /**/ @Double()
-  //   ^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTRA_ANNOTATION_ON_STRUCT_FIELD
-  double z;
-  //     ^
-  // [cfe] Field 'z' requires exactly one annotation to declare its native type, which cannot be Void. dart:ffi Structs and Unions cannot have regular Dart fields.
-}
-
-// error on annotation not matching up
-class TestStruct5 extends Struct {
-  /**/ @Int64()
-  //   ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.MISMATCHED_ANNOTATION_ON_STRUCT_FIELD
-  double z;
-  //     ^
-  // [cfe] Expected type 'double' to be 'int', which is the Dart type corresponding to 'Int64'.
-
-  Pointer notEmpty;
-}
-
-// error on annotation not matching up
-class TestStruct6 extends Struct {
-  /**/ @Void()
-  //   ^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.MISMATCHED_ANNOTATION_ON_STRUCT_FIELD
-  // [analyzer] COMPILE_TIME_ERROR.NON_CONSTANT_ANNOTATION_CONSTRUCTOR
-  //    ^
-  // [cfe] The class 'Void' is abstract and can't be instantiated.
-  double z;
-  //     ^
-  // [cfe] Field 'z' requires exactly one annotation to declare its native type, which cannot be Void. dart:ffi Structs and Unions cannot have regular Dart fields.
-
-  Pointer notEmpty;
-}
-
-// error on annotation not matching up
-class TestStruct7 extends Struct {
-  /**/ @NativeType()
-  //   ^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.MISMATCHED_ANNOTATION_ON_STRUCT_FIELD
-  //    ^
-  // [cfe] The class 'NativeType' is abstract and can't be instantiated.
-  double z;
-  //     ^
-  // [cfe] Field 'z' requires exactly one annotation to declare its native type, which cannot be Void. dart:ffi Structs and Unions cannot have regular Dart fields.
-
-  Pointer notEmpty;
-}
-
-// error on field initializer on field
-class TestStruct8 extends Struct {
-  @Double()
-  double z = 10.0;
-  //     ^
-  // [cfe] Field 'z' is a dart:ffi Pointer to a struct field and therefore cannot be initialized before constructor execution.
-  // [analyzer] COMPILE_TIME_ERROR.FIELD_IN_STRUCT_WITH_INITIALIZER
-
-  Pointer notEmpty;
-}
-
-// error on field initializer in constructor
-class TestStruct9 extends Struct {
-  @Double()
-  double z;
-  //     ^
-  // [cfe] Field 'z' is a dart:ffi Pointer to a struct field and therefore cannot be initialized before constructor execution.
-
-  Pointer notEmpty;
-
-  TestStruct9() : z = 0.0 {}
-  //                ^
-  // [cfe] Field 'z' is a dart:ffi Pointer to a struct field and therefore cannot be initialized before constructor execution.
-  //              ^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.FIELD_INITIALIZER_IN_STRUCT
-}
-
-// Struct classes may not be generic.
-class TestStruct11<T> extends Struct<TestStruct11<dynamic>> {}
-//    ^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.EMPTY_STRUCT
-// [analyzer] COMPILE_TIME_ERROR.GENERIC_STRUCT_SUBCLASS
-//                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-// [cfe] Expected 0 type arguments.
-// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-
-// Structs may not appear inside structs (currently, there is no suitable
-// annotation).
-class TestStruct12 extends Struct {
-  /**/ @Pointer
-  //   ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ANNOTATION
-  //    ^
-  // [cfe] This can't be used as an annotation; an annotation should be a reference to a compile-time constant variable, or a call to a constant constructor.
-  TestStruct9 struct;
-
-  Pointer notEmpty;
-}
-
-class DummyAnnotation {
-  const DummyAnnotation();
-}
-
-// Structs fields may have other annotations.
-class TestStruct13 extends Struct {
-  @DummyAnnotation()
-  @Double()
-  double z;
-}
-
-// Cannot extend native types.
-
-class ENativeType extends NativeType {}
-//                        ^^^^^^^^^^
-// [cfe] The class 'NativeType' can't be extended outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class EInt8 extends Int8 {}
-//                  ^^^^
-// [cfe] The class 'Int8' can't be extended outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class EInt16 extends Int16 {}
-//                   ^^^^^
-// [cfe] The class 'Int16' can't be extended outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class EInt32 extends Int32 {}
-//                   ^^^^^
-// [cfe] The class 'Int32' can't be extended outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class EInt64 extends Int64 {}
-//                   ^^^^^
-// [cfe] The class 'Int64' can't be extended outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class EUint8 extends Uint8 {}
-//                   ^^^^^
-// [cfe] The class 'Uint8' can't be extended outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class EUint16 extends Uint16 {}
-//                    ^^^^^^
-// [cfe] The class 'Uint16' can't be extended outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class EUint32 extends Uint32 {}
-//                    ^^^^^^
-// [cfe] The class 'Uint32' can't be extended outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class EUint64 extends Uint64 {}
-//                    ^^^^^^
-// [cfe] The class 'Uint64' can't be extended outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class EIntPtr extends IntPtr {}
-//                    ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-// [cfe] The class 'IntPtr' can't be extended outside of its library because it's a final class.
-//    ^
-// [cfe] Class 'IntPtr' cannot be extended or implemented.
-// [cfe] Classes extending 'AbiSpecificInteger' must have exactly one 'AbiSpecificIntegerMapping' annotation specifying the mapping from ABI to a NativeType integer with a fixed size.
-// [cfe] Classes extending 'AbiSpecificInteger' must have exactly one const constructor, no other members, and no type arguments.
-
-class EFloat extends Float {}
-//                   ^^^^^
-// [cfe] The class 'Float' can't be extended outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class EDouble extends Double {}
-//                    ^^^^^^
-// [cfe] The class 'Double' can't be extended outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class EVoid extends Void {}
-//                  ^^^^
-// [cfe] The class 'Void' can't be extended outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class ENativeFunction extends NativeFunction {}
-//                            ^^^^^^^^^^^^^^
-// [cfe] The class 'NativeFunction' can't be extended outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class EPointer extends Pointer {}
-//                     ^^^^^^^
-// [cfe] The class 'Pointer' can't be extended outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.NO_GENERATIVE_CONSTRUCTORS_IN_SUPERCLASS
-//    ^
-// [cfe] The superclass, 'Pointer', has no unnamed constructor that takes no arguments.
-
-// Cannot implement native natives or Struct.
-
-// Cannot extend native types.
-
-class INativeType implements NativeType {}
-//                           ^^^^^^^^^^
-// [cfe] The class 'NativeType' can't be implemented outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class IInt8 implements Int8 {}
-//                     ^^^^
-// [cfe] The class 'Int8' can't be implemented outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class IInt16 implements Int16 {}
-//                      ^^^^^
-// [cfe] The class 'Int16' can't be implemented outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class IInt32 implements Int32 {}
-//                      ^^^^^
-// [cfe] The class 'Int32' can't be implemented outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class IInt64 implements Int64 {}
-//                      ^^^^^
-// [cfe] The class 'Int64' can't be implemented outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class IUint8 implements Uint8 {}
-//                      ^^^^^
-// [cfe] The class 'Uint8' can't be implemented outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class IUint16 implements Uint16 {}
-//                       ^^^^^^
-// [cfe] The class 'Uint16' can't be implemented outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class IUint32 implements Uint32 {}
-//                       ^^^^^^
-// [cfe] The class 'Uint32' can't be implemented outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class IUint64 implements Uint64 {}
-//                       ^^^^^^
-// [cfe] The class 'Uint64' can't be implemented outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class IIntPtr implements IntPtr {}
-//                       ^^^^^^
-// [cfe] The class 'IntPtr' can't be implemented outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_STRUCT_CLASS
-//    ^
-// [cfe] Class 'Object' cannot be extended or implemented.
-
-class IFloat implements Float {}
-//                      ^^^^^
-// [cfe] The class 'Float' can't be implemented outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class IDouble implements Double {}
-//                       ^^^^^^
-// [cfe] The class 'Double' can't be implemented outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class IVoid implements Void {}
-//                     ^^^^
-// [cfe] The class 'Void' can't be implemented outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class INativeFunction implements NativeFunction {}
-//                               ^^^^^^^^^^^^^^
-// [cfe] The class 'NativeFunction' can't be implemented outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class IPointer implements Pointer {}
-//    ^^^^^^^^
-// [cfe] The non-abstract class 'IPointer' is missing implementations for these members:
-// [analyzer] COMPILE_TIME_ERROR.NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER
-//                        ^^^^^^^
-// [cfe] The class 'Pointer' can't be implemented outside of its library because it's a final class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class IStruct implements Struct {}
-//    ^^^^^^^
-// [cfe] Class 'Object' cannot be extended or implemented.
-//                       ^^^^^^
-// [cfe] The class 'Struct' can't be implemented outside of its library because it's a base class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class IOpaque implements Opaque {}
-//    ^^^^^^^
-// [cfe] Class 'Object' cannot be extended or implemented.
-//                       ^^^^^^
-// [cfe] The class 'Opaque' can't be implemented outside of its library because it's a base class.
-// [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-
-class MyClass {
-  int x;
-  MyClass(this.x);
-}
-
-final testLibrary = dlopenPlatformSpecific("ffi_test_functions");
-
-void testHandleVariance() {
-  // Taking a more specific argument is okay.
-  testLibrary.lookupFunction<Handle Function(Handle), Object Function(MyClass)>(
-      "PassObjectToC");
-
-  // Requiring a more specific return type is not, this requires a cast from
-  // the user.
-  testLibrary.lookupFunction<Handle Function(Handle), MyClass Function(Object)>(
-      //                                              ^^^^^^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.MUST_BE_A_SUBTYPE
-      //      ^
-      // [cfe] Expected type 'MyClass Function(Object)' to be 'Object Function(Object)', which is the Dart type corresponding to 'NativeFunction<Handle Function(Handle)>'.
-      "PassObjectToC");
-}
-
-class TestStruct1001 extends Struct {
-  /**/ Handle handle;
-  //   ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_FIELD_TYPE_IN_STRUCT
-  //          ^
-  // [cfe] Field 'handle' requires exactly one annotation to declare its native type, which cannot be Void. dart:ffi Structs and Unions cannot have regular Dart fields.
-
-  Pointer notEmpty;
-}
-
-class TestStruct1002 extends Struct {
-  /**/ @Handle()
-  //   ^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.NON_CONSTANT_ANNOTATION_CONSTRUCTOR
-  //    ^
-  // [cfe] The class 'Handle' is abstract and can't be instantiated.
-  /**/ Object handle;
-  //   ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_FIELD_TYPE_IN_STRUCT
-  //          ^
-  // [cfe] Field 'handle' requires exactly one annotation to declare its native type, which cannot be Void. dart:ffi Structs and Unions cannot have regular Dart fields.
-
-  Pointer notEmpty;
-}
-
-class EmptyStruct extends Struct {}
-//    ^^^^^^^^^^^
-// [cfe] Struct 'EmptyStruct' is empty. Empty structs and unions are undefined behavior.
-// [analyzer] COMPILE_TIME_ERROR.EMPTY_STRUCT
-
-class EmptyStruct extends Struct {}
-//    ^^^^^^^^^^^
-// [cfe] 'EmptyStruct' is already declared in this scope.
-// [cfe] Struct 'EmptyStruct#1#0' is empty. Empty structs and unions are undefined behavior.
-// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-// [analyzer] COMPILE_TIME_ERROR.EMPTY_STRUCT
-
-void testEmptyStructLookupFunctionArgument() {
-  testLibrary.lookupFunction<
-      //      ^
-      // [cfe] Expected type 'NativeFunction<Void Function(invalid-type)>' to be a valid and instantiated subtype of 'NativeType'.
-      /**/ Void Function(EmptyStruct),
-      //   ^^^^^^^^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.MUST_BE_A_NATIVE_FUNCTION_TYPE
-      //                 ^
-      // [cfe] Can't use 'EmptyStruct' because it is declared more than once.
-      void Function(EmptyStruct)>("DoesNotExist");
-  //                ^
-  // [cfe] Can't use 'EmptyStruct' because it is declared more than once.
-}
-// [cfe] Can't use 'EmptyStruct' because it is declared more than once.
-
-class EmptyStruct extends Struct {}
-//    ^^^^^^^^^^^
-// [cfe] 'EmptyStruct' is already declared in this scope.
-// [cfe] Struct 'EmptyStruct#2#0' is empty. Empty structs and unions are undefined behavior.
-// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-// [analyzer] COMPILE_TIME_ERROR.EMPTY_STRUCT
-
-void testEmptyStructLookupFunctionReturn() {
-  testLibrary.lookupFunction<EmptyStruct Function(), EmptyStruct Function()>(
-      //                     ^^^^^^^^^^^^^^^^^^^^^^
-      // [cfe] Can't use 'EmptyStruct' because it is declared more than once.
-      // [analyzer] COMPILE_TIME_ERROR.MUST_BE_A_NATIVE_FUNCTION_TYPE
-      //                                             ^
-      // [cfe] Can't use 'EmptyStruct' because it is declared more than once.
-      //      ^
-      // [cfe] Expected type 'NativeFunction<invalid-type Function()>' to be a valid and instantiated subtype of 'NativeType'.
-      "DoesNotExist");
-}
-
-class EmptyStruct extends Struct {}
-//    ^^^^^^^^^^^
-// [cfe] 'EmptyStruct' is already declared in this scope.
-// [cfe] Struct 'EmptyStruct#3#0' is empty. Empty structs and unions are undefined behavior.
-// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-// [analyzer] COMPILE_TIME_ERROR.EMPTY_STRUCT
-
-void testEmptyStructAsFunctionArgument() {
-  final Pointer<NativeFunction<Void Function(EmptyStruct)>> pointer =
-      //                                     ^
-      // [cfe] Can't use 'EmptyStruct' because it is declared more than once.
-      Pointer.fromAddress(1234);
-  pointer.asFunction<void Function(EmptyStruct)>();
-  //                               ^
-  // [cfe] Can't use 'EmptyStruct' because it is declared more than once.
-  //      ^
-  // [cfe] Expected type 'NativeFunction<Void Function(invalid-type)>' to be a valid and instantiated subtype of 'NativeType'.
-  //                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.NON_NATIVE_FUNCTION_TYPE_ARGUMENT_TO_POINTER
-}
-
-class EmptyStruct extends Struct {}
-//    ^^^^^^^^^^^
-// [cfe] 'EmptyStruct' is already declared in this scope.
-// [cfe] Struct 'EmptyStruct#4#0' is empty. Empty structs and unions are undefined behavior.
-// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-// [analyzer] COMPILE_TIME_ERROR.EMPTY_STRUCT
-
-void testEmptyStructAsFunctionReturn() {
-  final Pointer<NativeFunction<EmptyStruct Function()>> pointer =
-      //                       ^
-      // [cfe] Can't use 'EmptyStruct' because it is declared more than once.
-      Pointer.fromAddress(1234);
-  pointer.asFunction<EmptyStruct Function()>();
-  //                 ^^^^^^^^^^^^^^^^^^^^^^
-  // [cfe] Can't use 'EmptyStruct' because it is declared more than once.
-  // [analyzer] COMPILE_TIME_ERROR.NON_NATIVE_FUNCTION_TYPE_ARGUMENT_TO_POINTER
-  //      ^
-  // [cfe] Expected type 'NativeFunction<invalid-type Function()>' to be a valid and instantiated subtype of 'NativeType'.
-}
-
-class EmptyStruct extends Struct {}
-//    ^^^^^^^^^^^
-// [cfe] 'EmptyStruct' is already declared in this scope.
-// [cfe] Struct 'EmptyStruct#5#0' is empty. Empty structs and unions are undefined behavior.
-// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-// [analyzer] COMPILE_TIME_ERROR.EMPTY_STRUCT
-
-void _consumeEmptyStruct(EmptyStruct e) => print(e);
-//                       ^
-// [cfe] 'EmptyStruct' isn't a type.
-// [cfe] Can't use 'EmptyStruct' because it is declared more than once.
-
-void testEmptyStructFromFunctionArgument() {
-  Pointer.fromFunction<Void Function(EmptyStruct)>(_consumeEmptyStruct);
-  //      ^
-  // [cfe] Expected type 'NativeFunction<Void Function(invalid-type)>' to be a valid and instantiated subtype of 'NativeType'.
-  //                                 ^
-  // [cfe] Can't use 'EmptyStruct' because it is declared more than once.
-  //                   ^^^^^^^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.MUST_BE_A_NATIVE_FUNCTION_TYPE
-}
-
-class EmptyStruct extends Struct {}
-//    ^^^^^^^^^^^
-// [cfe] 'EmptyStruct' is already declared in this scope.
-// [cfe] Struct 'EmptyStruct#6#0' is empty. Empty structs and unions are undefined behavior.
-// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-// [analyzer] COMPILE_TIME_ERROR.EMPTY_STRUCT
-
-/**/ EmptyStruct _returnEmptyStruct() => EmptyStruct();
-//                                       ^^^^^^^^^^^
-// [cfe] Can't use 'EmptyStruct' because it is declared more than once.
-// [analyzer] COMPILE_TIME_ERROR.CREATION_OF_STRUCT_OR_UNION
-//   ^
-// [cfe] 'EmptyStruct' isn't a type.
-
-void testEmptyStructFromFunctionReturn() {
-  Pointer.fromFunction<EmptyStruct Function()>(_returnEmptyStruct);
-  //                   ^^^^^^^^^^^^^^^^^^^^^^
-  // [cfe] Can't use 'EmptyStruct' because it is declared more than once.
-  // [analyzer] COMPILE_TIME_ERROR.MUST_BE_A_NATIVE_FUNCTION_TYPE
-  //      ^
-  // [cfe] Expected type 'NativeFunction<invalid-type Function()>' to be a valid and instantiated subtype of 'NativeType'.
-}
-
-class EmptyStruct extends Struct {}
-//    ^^^^^^^^^^^
-// [cfe] 'EmptyStruct' is already declared in this scope.
-// [cfe] Struct 'EmptyStruct#7#0' is empty. Empty structs and unions are undefined behavior.
-// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-// [analyzer] COMPILE_TIME_ERROR.EMPTY_STRUCT
-
-class HasNestedEmptyStruct extends Struct {
-  EmptyStruct nestedEmptyStruct;
-//^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.EMPTY_STRUCT
-  //          ^
-  // [cfe] Field 'nestedEmptyStruct' requires exactly one annotation to declare its native type, which cannot be Void. dart:ffi Structs and Unions cannot have regular Dart fields.
-//^
-  // [cfe] 'EmptyStruct' isn't a type.
-  // [cfe] Can't use 'EmptyStruct' because it is declared more than once.
-
-  Pointer notEmpty;
-}
-
-void testAllocateGeneric() {
-  Pointer<T> generic<T extends NativeType>() {
-    Pointer<T> pointer = nullptr;
-    pointer = calloc();
-    //        ^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.NON_CONSTANT_TYPE_ARGUMENT
-    //              ^
-    // [cfe] Expected type 'T' to be a valid and instantiated subtype of 'NativeType'.
-    return pointer;
-  }
-
-  Pointer p = generic<Int64>();
-}
-
-void testAllocateNativeType() {
-  /**/ calloc();
-  //   ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.NON_CONSTANT_TYPE_ARGUMENT
-  //         ^
-  // [cfe] Expected type 'NativeType' to be a valid and instantiated subtype of 'NativeType'.
-}
-
-void testRefStruct() {
-  final myStructPointer = calloc<TestStruct13>();
-  Pointer<Struct> structPointer = myStructPointer;
-  /**/ structPointer.ref;
-  //   ^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.NON_CONSTANT_TYPE_ARGUMENT
-  //                 ^
-  // [cfe] Expected type 'Struct' to be a valid and instantiated subtype of 'NativeType'.
-  calloc.free(myStructPointer);
-}
-
-T genericRef<T extends Struct>(Pointer<T> p) => p.ref;
-//                                              ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_CONSTANT_TYPE_ARGUMENT
-//                                                ^
-// [cfe] Expected type 'T' to be a valid and instantiated subtype of 'NativeType'.
-
-T genericRef2<T extends Struct>(Pointer<T> p) => p.cast<T>().ref;
-//                                               ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_CONSTANT_TYPE_ARGUMENT
-//                                                           ^
-// [cfe] Expected type 'T' to be a valid and instantiated subtype of 'NativeType'.
-
-T genericRef3<T extends Struct>(Pointer<T> p) => p[0];
-//                                               ^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_CONSTANT_TYPE_ARGUMENT
-//                                                ^
-// [cfe] Expected type 'T' to be a valid and instantiated subtype of 'NativeType'.
-
-T genericRef4<T extends Struct>(Array<T> p) => p[0];
-//                                             ^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_CONSTANT_TYPE_ARGUMENT
-//                                              ^
-// [cfe] Expected type 'T' to be a valid and instantiated subtype of 'NativeType'.
-
-void testSizeOfGeneric() {
-  int generic<T extends Pointer>() {
-    int size = sizeOf<IntPtr>();
-    size = sizeOf<T>();
-    //     ^^^^^^^^^^^
-    // [cfe] Expected type 'T' to be a valid and instantiated subtype of 'NativeType'.
-    // [analyzer] COMPILE_TIME_ERROR.NON_CONSTANT_TYPE_ARGUMENT
-    return size;
-  }
-
-  int size = generic<Pointer<Int64>>();
-}
-
-void testSizeOfNativeType() {
-  sizeOf();
-//^^^^^^^^
-  // [cfe] Expected type 'NativeType' to be a valid and instantiated subtype of 'NativeType'.
-  // [analyzer] COMPILE_TIME_ERROR.NON_CONSTANT_TYPE_ARGUMENT
-}
-
-void testSizeOfHandle() {
-  sizeOf<Handle>();
-//^^^^^^^^^^^^^^^^
-  // [cfe] Expected type 'Handle' to be a valid and instantiated subtype of 'NativeType'.
-  // [analyzer] COMPILE_TIME_ERROR.NON_CONSTANT_TYPE_ARGUMENT
-}
-
-void testElementAtGeneric() {
-  Pointer<T> generic<T extends NativeType>(Pointer<T> pointer) {
-    Pointer<T> returnValue = pointer;
-    returnValue = returnValue.elementAt(1);
-    //                        ^^^^^^^^^
-    // [cfe] The method 'elementAt' isn't defined for the class 'Pointer<T>'.
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_METHOD
-    return returnValue;
-  }
-
-  Pointer<Int8> p = calloc();
-  p.elementAt(1);
-  generic(p);
-  calloc.free(p);
-}
-
-void testElementAtNativeType() {
-  Pointer<Int8> p = calloc();
-  p.elementAt(1);
-  Pointer<NativeType> p2 = p;
-  p2.elementAt(1);
-  // ^^^^^^^^^
-  // [cfe] The method 'elementAt' isn't defined for the class 'Pointer<NativeType>'.
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_METHOD
-  calloc.free(p);
-}
-
-class TestStruct1400 extends Struct {
-  @Array(8)
-  @Array(8)
-//^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTRA_SIZE_ANNOTATION_CARRAY
-  Array<Uint8> a0;
-  //           ^
-  // [cfe] Field 'a0' must have exactly one 'Array' annotation.
-}
-
-class TestStruct1401 extends Struct {
-  /**/ Array<Uint8> a0;
-  //                ^
-  // [cfe] Field 'a0' must have exactly one 'Array' annotation.
-  //   ^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.MISSING_SIZE_ANNOTATION_CARRAY
-
-  Pointer<Uint8> notEmpty;
-}
-
-class TestStruct1402 extends Struct {
-  /**/ @Array(8, 8, 8)
-  //   ^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.SIZE_ANNOTATION_DIMENSIONS
-  Array<Array<Uint8>> a0;
-  //                  ^
-  // [cfe] Field 'a0' must have an 'Array' annotation that matches the dimensions.
-
-  Pointer<Uint8> notEmpty;
-}
-
-class TestStruct1403 extends Struct {
-  /**/ @Array(8, 8)
-  //   ^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.SIZE_ANNOTATION_DIMENSIONS
-  Array<Array<Array<Uint8>>> a0;
-  //                         ^
-  // [cfe] Field 'a0' must have an 'Array' annotation that matches the dimensions.
-
-  Pointer<Uint8> notEmpty;
-}
-
-class TestStruct1404 extends Struct {
-  /**/ @Array.multi([8, 8, 8])
-  //   ^^^^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.SIZE_ANNOTATION_DIMENSIONS
-  Array<Array<Uint8>> a0;
-  //                  ^
-  // [cfe] Field 'a0' must have an 'Array' annotation that matches the dimensions.
-
-  Pointer<Uint8> notEmpty;
-}
-
-class TestStruct1405 extends Struct {
-  /**/ @Array.multi([8, 8])
-  //   ^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.SIZE_ANNOTATION_DIMENSIONS
-  Array<Array<Array<Uint8>>> a0;
-  //                         ^
-  // [cfe] Field 'a0' must have an 'Array' annotation that matches the dimensions.
-
-  Pointer<Uint8> notEmpty;
-}
-
-void testLookupFunctionIsLeafMustBeConst() {
-  bool notAConst = false;
-  DynamicLibrary l = dlopenPlatformSpecific("ffi_test_dynamic_library");
-  /**/ l.lookupFunction<NativeDoubleUnOp, DoubleUnOp>("timesFour",
-      // ^
-      // [cfe] Argument 'isLeaf' must be a constant.
-      isLeaf: notAConst);
-  //          ^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_MUST_BE_A_CONSTANT
-}
-
-void testAsFunctionIsLeafMustBeConst() {
-  bool notAConst = false;
-  Pointer<NativeFunction<Int8UnOp>> p = Pointer.fromAddress(1337);
-  IntUnOp f = p.asFunction(isLeaf: notAConst);
-  //                               ^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_MUST_BE_A_CONSTANT
-  //            ^
-  // [cfe] Argument 'isLeaf' must be a constant.
-}
-
-typedef NativeTakesHandle = Void Function(Handle);
-typedef TakesHandle = void Function(Object);
-
-void testLookupFunctionTakesHandle() {
-  DynamicLibrary l = dlopenPlatformSpecific("ffi_test_dynamic_library");
-  l.lookupFunction<NativeTakesHandle, TakesHandle>("takesHandle", isLeaf: true);
-  //               ^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.LEAF_CALL_MUST_NOT_TAKE_HANDLE
-  //^
-  // [cfe] FFI leaf call must not have Handle argument types.
-}
-
-void testAsFunctionTakesHandle() {
-  Pointer<NativeFunction<NativeTakesHandle>> p = Pointer.fromAddress(1337);
-  TakesHandle f = p.asFunction(isLeaf: true);
-  //              ^^^^^^^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.LEAF_CALL_MUST_NOT_TAKE_HANDLE
-  //                ^
-  // [cfe] FFI leaf call must not have Handle argument types.
-}
-
-typedef NativeReturnsHandle = Handle Function();
-typedef ReturnsHandle = Object Function();
-
-void testLookupFunctionReturnsHandle() {
-  DynamicLibrary l = dlopenPlatformSpecific("ffi_test_dynamic_library");
-  /**/ l.lookupFunction<NativeReturnsHandle, ReturnsHandle>("returnsHandle",
-      //                ^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.LEAF_CALL_MUST_NOT_RETURN_HANDLE
-      // ^
-      // [cfe] FFI leaf call must not have Handle return type.
-      isLeaf: true);
-}
-
-void testAsFunctionReturnsHandle() {
-  Pointer<NativeFunction<NativeReturnsHandle>> p = Pointer.fromAddress(1337);
-  ReturnsHandle f = p.asFunction(isLeaf: true);
-  //                ^^^^^^^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.LEAF_CALL_MUST_NOT_RETURN_HANDLE
-  //                  ^
-  // [cfe] FFI leaf call must not have Handle return type.
-}
-
-@Packed(1)
-class TestStruct1600 extends Struct {
-  Pointer<Uint8> notEmpty;
-}
-
-@Packed(1)
-/**/ @Packed(1)
-//   ^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.PACKED_ANNOTATION
-class TestStruct1601 extends Struct {
-  //  ^
-  // [cfe] Struct 'TestStruct1601' must have at most one 'Packed' annotation.
-  Pointer<Uint8> notEmpty;
-}
-
-@Packed(3)
-//      ^
-// [analyzer] COMPILE_TIME_ERROR.PACKED_ANNOTATION_ALIGNMENT
-class TestStruct1602 extends Struct {
-  //  ^
-  // [cfe] Only packing to 1, 2, 4, 8, and 16 bytes is supported.
-  Pointer<Uint8> notEmpty;
-}
-
-@Packed(0)
-//      ^
-// [analyzer] COMPILE_TIME_ERROR.PACKED_ANNOTATION_ALIGNMENT
-class TestStruct1607 extends Struct {
-  //  ^
-  // [cfe] Only packing to 1, 2, 4, 8, and 16 bytes is supported.
-  Pointer<Uint8> notEmpty;
-}
-
-class TestStruct1800 extends Struct {
-  Pointer<Uint8> notEmpty;
-
-  @Array(-1)
-  //     ^^
-  // [analyzer] COMPILE_TIME_ERROR.NON_POSITIVE_ARRAY_DIMENSION
-  Array<Uint8> inlineArray;
-  //           ^
-  // [cfe] Array dimensions must be positive numbers.
-}
-
-class TestStruct1801 extends Struct {
-  Pointer<Uint8> notEmpty;
-
-  /**/ @Array(1, -1)
-  //   ^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.SIZE_ANNOTATION_DIMENSIONS
-  //             ^^
-  // [analyzer] COMPILE_TIME_ERROR.NON_POSITIVE_ARRAY_DIMENSION
-  Array<Uint8> inlineArray;
-  //           ^
-  // [cfe] Array dimensions must be positive numbers.
-  // [cfe] Field 'inlineArray' must have an 'Array' annotation that matches the dimensions.
-}
-
-class TestStruct1802 extends Struct {
-  Pointer<Uint8> notEmpty;
-
-  /**/ @Array.multi([2, 2, 2, 2, 2, 2, -1])
-  //   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.SIZE_ANNOTATION_DIMENSIONS
-  //                                   ^^
-  // [analyzer] COMPILE_TIME_ERROR.NON_POSITIVE_ARRAY_DIMENSION
-  Array<Uint8> inlineArray;
-  //           ^
-  // [cfe] Array dimensions must be positive numbers.
-  // [cfe] Field 'inlineArray' must have an 'Array' annotation that matches the dimensions.
-}
-
-@AbiSpecificIntegerMapping({
-  Abi.androidArm: Uint32(),
-  Abi.androidArm64: IntPtr(),
-  //                ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.ABI_SPECIFIC_INTEGER_MAPPING_UNSUPPORTED
-  Abi.androidIA32: AbiSpecificInteger1(),
-  //               ^^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.ABI_SPECIFIC_INTEGER_MAPPING_UNSUPPORTED
-})
-/**/ @AbiSpecificIntegerMapping({})
-//    ^^^^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ABI_SPECIFIC_INTEGER_MAPPING_EXTRA
-class AbiSpecificInteger1 extends AbiSpecificInteger {
-  //  ^^^^^^^^^^^^^^^^^^^
-  // [cfe] Classes extending 'AbiSpecificInteger' must have exactly one 'AbiSpecificIntegerMapping' annotation specifying the mapping from ABI to a NativeType integer with a fixed size.
-  // [cfe] Classes extending 'AbiSpecificInteger' must have exactly one const constructor, no other members, and no type arguments.
-  // [analyzer] COMPILE_TIME_ERROR.ABI_SPECIFIC_INTEGER_INVALID
-  const AbiSpecificInteger1();
-  //    ^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_CONSTRUCTOR_WITH_NON_FINAL_FIELD
-  // [cfe] Constructor is marked 'const' so all fields must be final.
-
-  int get a => 4;
-
-  int b;
-}
-
-class AbiSpecificInteger2 implements AbiSpecificInteger {
-  //  ^^^^^^^^^^^^^^^^^^^
-  // [cfe] Class 'Object' cannot be extended or implemented.
-  //                                 ^^^^^^^^^^^^^^^^^^
-  // [cfe] The class 'AbiSpecificInteger' can't be implemented outside of its library because it's a base class.
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-  const AbiSpecificInteger2();
-}
-
-class AbiSpecificInteger3 extends AbiSpecificInteger1 {
-  //  ^^^^^^^^^^^^^^^^^^^
-  // [cfe] Class 'AbiSpecificInteger1' cannot be extended or implemented.
-  // [cfe] Classes extending 'AbiSpecificInteger' must have exactly one 'AbiSpecificIntegerMapping' annotation specifying the mapping from ABI to a NativeType integer with a fixed size.
-  //                              ^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_STRUCT_CLASS
-  const AbiSpecificInteger3();
-  //    ^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_CONSTRUCTOR_WITH_NON_FINAL_FIELD
-}
-
-class AbiSpecificInteger4 implements AbiSpecificInteger1 {
-  //  ^^^^^^^^^^^^^^^^^^^
-  // [cfe] Class 'Object' cannot be extended or implemented.
-  // [cfe] The non-abstract class 'AbiSpecificInteger4' is missing implementations for these members:
-  // [analyzer] COMPILE_TIME_ERROR.NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER
-  //                                 ^^^^^^^^^^^^^^^^^^^
-  // [cfe] The class 'AbiSpecificInteger' can't be implemented outside of its library because it's a base class.
-  // [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_STRUCT_CLASS
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_USE_OF_TYPE_OUTSIDE_LIBRARY
-  const AbiSpecificInteger4();
-}
-
-class MyFinalizableStruct extends Struct implements Finalizable {
-  //  ^^^^^^^^^^^^^^^^^^^
-  // [cfe] Struct 'MyFinalizableStruct' can't implement Finalizable.
-  // [analyzer] COMPILE_TIME_ERROR.COMPOUND_IMPLEMENTS_FINALIZABLE
-  Pointer<Void> field;
-}
diff --git a/tests/ffi_2/vmspecific_variance_function_checks_test.dart b/tests/ffi_2/vmspecific_variance_function_checks_test.dart
deleted file mode 100644
index 0241e41bce9..00000000000
--- a/tests/ffi_2/vmspecific_variance_function_checks_test.dart
+++ /dev/null
@@ -1,69 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// SharedObjects=ffi_test_functions
-
-// @dart = 2.9
-
-import 'dart:ffi';
-
-import 'dylib_utils.dart';
-
-// ============================================
-// Tests checks on Dart to native (asFunction).
-// ============================================
-
-typedef Int64PointerParamOpDart = void Function(Pointer<Int64>);
-typedef Int64PointerParamOp = Void Function(Pointer<Int64>);
-typedef Int64PointerReturnOp = Pointer<Int64> Function();
-typedef NaTyPointerReturnOp = Pointer<NativeType> Function();
-
-final paramOpName = "NativeTypePointerParam";
-final returnOpName = "NativeTypePointerReturn";
-
-final DynamicLibrary ffiTestFunctions =
-    dlopenPlatformSpecific("ffi_test_functions");
-
-final p1 =
-    ffiTestFunctions.lookup<NativeFunction<Int64PointerParamOp>>(paramOpName);
-final nonInvariantBinding1 = //# 1:  compile-time error
-    p1.asFunction<NaTyPointerParamOpDart>(); //# 1:  continued
-
-final p2 =
-    ffiTestFunctions.lookup<NativeFunction<NaTyPointerReturnOp>>(returnOpName);
-final nonInvariantBinding2 = //# 2:  compile-time error
-    p2.asFunction<Int64PointerReturnOp>(); //# 2:  continued
-
-final p3 = Pointer<
-    NativeFunction<
-        Pointer<NativeFunction<Pointer<NativeType> Function()>>
-            Function()>>.fromAddress(0x1234);
-final f3 = p3 //# 10:  compile-time error
-    .asFunction< //# 10:  continued
-        Pointer< //# 10:  continued
-                NativeFunction< //# 10:  continued
-                    Pointer<Int8> Function()>> //# 10:  continued
-            Function()>(); //# 10:  continued
-
-// ===========================================================
-// Test check on callbacks from native to Dart (fromFunction).
-// ===========================================================
-
-void naTyPointerParamOp(Pointer<NativeType> p) {
-  final Pointer<Int8> asInt8 = p.cast();
-  asInt8.value = 42;
-}
-
-Pointer<Int64> int64PointerReturnOp() {
-  return Pointer.fromAddress(0x13370000);
-}
-
-final implicitDowncast1 = //# 3:  compile-time error
-    Pointer.fromFunction<Int64PointerParamOp>(//# 3:  continued
-        naTyPointerParamOp); //# 3:  continued
-final implicitDowncast2 = //# 4:  compile-time error
-    Pointer.fromFunction<NaTyPointerReturnOp>(//# 4:  continued
-        int64PointerReturnOp); //# 4:  continued
-
-void main() {}
diff --git a/tests/language_2/abstract/beats_arguments_test.dart b/tests/language_2/abstract/beats_arguments_test.dart
deleted file mode 100644
index dc1ac1ada2a..00000000000
--- a/tests/language_2/abstract/beats_arguments_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// TODO(rnystrom): This test should be renamed since now it's just about
-// testing that constructing an abstract class generates an error.
-
-abstract class A {
-  A() {}
-}
-
-void main() {
-  new A();
-  //  ^
-  // [analyzer] COMPILE_TIME_ERROR.INSTANTIATE_ABSTRACT_CLASS
-  // [cfe] The class 'A' is abstract and can't be instantiated.
-}
diff --git a/tests/language_2/abstract/equal_test.dart b/tests/language_2/abstract/equal_test.dart
deleted file mode 100644
index 37c49826ec1..00000000000
--- a/tests/language_2/abstract/equal_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  bool operator ==(other);
-  const A();
-}
-
-class B implements A {
-  const B();
-}
-
-class C extends A {
-  const C();
-}
-
-class Invalid {
-  bool operator ==(other) => false;
-  const Invalid();
-}
-
-class D implements Invalid {
-  const D();
-}
-
-main() {
-  print(const {A(): 1});
-  print(const {B(): 2});
-  print(const {C(): 3});
-  print(const {D(): 4});
-}
diff --git a/tests/language_2/abstract/exact_selector_runtime_test.dart b/tests/language_2/abstract/exact_selector_runtime_test.dart
deleted file mode 100644
index eb8d0c8727c..00000000000
--- a/tests/language_2/abstract/exact_selector_runtime_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Regression test for dart2js that used to duplicate some `Object`
-// methods to handle `noSuchMethod`.
-
-import "package:expect/expect.dart";
-
-class Foo {
-  noSuchMethod(im) => 42;
-}
-
-@pragma('vm:never-inline')
-@pragma('dart2js:noInline')
-returnFoo() {
-  (() => 42)();
-  return new Foo();
-}
-
-class Bar {
-  operator ==(other) => false;
-}
-
-var a = [false, true, new Object(), new Bar()];
-
-main() {
-  if (a[0]) {
-    // This `==` call will make the compiler create a selector with an
-    // exact `TypeMask` of `Foo`. Since `Foo` is abstract, such a call
-    // cannot happen, but we still used to generate a `==` method on
-    // the `Object` class to handle `noSuchMethod`.
-    print(returnFoo() == 42);
-  } else {
-    Expect.isFalse(a[2] == 42);
-  }
-}
diff --git a/tests/language_2/abstract/exact_selector_test.dart b/tests/language_2/abstract/exact_selector_test.dart
deleted file mode 100644
index dff88cb1261..00000000000
--- a/tests/language_2/abstract/exact_selector_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to duplicate some `Object`
-// methods to handle `noSuchMethod`.
-
-import "package:expect/expect.dart";
-
-abstract class Foo {
-  noSuchMethod(im) => 42;
-}
-
-@pragma('vm:never-inline')
-@pragma('dart2js:noInline')
-returnFoo() {
-  (() => 42)();
-  return new Foo();
-  //         ^^^
-  // [analyzer] COMPILE_TIME_ERROR.INSTANTIATE_ABSTRACT_CLASS
-  // [cfe] The class 'Foo' is abstract and can't be instantiated.
-}
-
-class Bar {
-  operator ==(other) => false;
-}
-
-var a = [false, true, new Object(), new Bar()];
-
-main() {
-  if (a[0]) {
-    // This `==` call will make the compiler create a selector with an
-    // exact `TypeMask` of `Foo`. Since `Foo` is abstract, such a call
-    // cannot happen, but we still used to generate a `==` method on
-    // the `Object` class to handle `noSuchMethod`.
-    print(returnFoo() == 42);
-  } else {
-    Expect.isFalse(a[2] == 42);
-  }
-}
diff --git a/tests/language_2/abstract/factory_constructor_runtime_test.dart b/tests/language_2/abstract/factory_constructor_runtime_test.dart
deleted file mode 100644
index fc7b3517c50..00000000000
--- a/tests/language_2/abstract/factory_constructor_runtime_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// Exercises issue 2282, factory constructors in abstract classes should
-// not emit a static type warning
-
-class B extends A1 {
-  B() {}
-  method() {}
-}
-
-abstract class A1 {
-  A1() {}
-  method(); // Abstract.
-  factory A1.make() {
-    return new B();
-  }
-}
-
-class A2 {
-  // Intentionally abstract method.
-
-  A2.make() {}
-}
-
-main() {
-  new A1.make();
-
-}
diff --git a/tests/language_2/abstract/factory_constructor_test.dart b/tests/language_2/abstract/factory_constructor_test.dart
deleted file mode 100644
index fbfe12e0f12..00000000000
--- a/tests/language_2/abstract/factory_constructor_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Exercises issue 2282, factory constructors in abstract classes should
-// not emit a static type warning
-
-class B extends A1 {
-  B() {}
-  method() {}
-}
-
-abstract class A1 {
-  A1() {}
-  method(); // Abstract.
-  factory A1.make() {
-    return new B();
-  }
-}
-
-class A2 {
-//    ^
-// [cfe] The non-abstract class 'A2' is missing implementations for these members:
-
-  // Intentionally abstract method.
-  method();
-//^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONCRETE_CLASS_WITH_ABSTRACT_MEMBER
-  A2.make() {}
-}
-
-main() {
-  new A1.make();
-  new A2.make();
-}
diff --git a/tests/language_2/abstract/getter2_test.dart b/tests/language_2/abstract/getter2_test.dart
deleted file mode 100644
index e1154d9fd7c..00000000000
--- a/tests/language_2/abstract/getter2_test.dart
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  int get x => 100;
-}
-
-abstract class B extends A {
-  int _x;
-
-  int get x;
-  set x(int v) {
-    _x = v;
-  }
-}
-
-class C extends B {
-  int get x => super.x;
-}
-
-class GetterConcrete {
-  var _foo;
-
-  get foo => _foo;
-  set foo(x) => _foo = x;
-
-  var _bar;
-
-  get bar => _bar;
-  set bar(x) => _bar = x;
-}
-
-class AbstractGetterOverride1 extends GetterConcrete {
-  get foo;
-  set bar(x);
-}
-
-class AbstractGetterOverride2 extends Object with GetterConcrete {
-  get foo;
-  set bar(x);
-}
-
-void main() {
-  B b = new C();
-  b.x = 42;
-  Expect.equals(b._x, 42);
-  Expect.equals(b.x, 100);
-
-  /// Tests that overriding either the getter or setter with an abstract member
-  /// has no effect.
-  /// Regression test for https://github.com/dart-lang/sdk/issues/29914
-  var c1 = AbstractGetterOverride1()
-    ..foo = 123
-    ..bar = 456;
-  Expect.equals(c1.foo, 123);
-  Expect.equals(c1.bar, 456);
-
-  var c2 = AbstractGetterOverride2()
-    ..foo = 123
-    ..bar = 456;
-  Expect.equals(c2.foo, 123);
-  Expect.equals(c2.bar, 456);
-}
diff --git a/tests/language_2/abstract/getter_test.dart b/tests/language_2/abstract/getter_test.dart
deleted file mode 100644
index 6c3b06a3280..00000000000
--- a/tests/language_2/abstract/getter_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test to ensure that an abstract getter is not mistaken for a field.
-
-class Foo {
-//    ^
-// [cfe] The non-abstract class 'Foo' is missing implementations for these members:
-
-  // Intentionally abstract:
-  get i;
-//^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONCRETE_CLASS_WITH_ABSTRACT_MEMBER
-}
-
-class Bar {}
-
-checkIt(f) {
-  Expect.throwsNoSuchMethodError(() => f.i = 'hi');
-  Expect.throwsNoSuchMethodError(() => print(f.i));
-  Expect.throwsNoSuchMethodError(() => print(f.i()));
-}
-
-main() {
-  checkIt(new Foo());
-  checkIt(new Bar());
-}
diff --git a/tests/language_2/abstract/method_test.dart b/tests/language_2/abstract/method_test.dart
deleted file mode 100644
index fb856c8f6ad..00000000000
--- a/tests/language_2/abstract/method_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Checks that abstract instance methods are correctly resolved.
-
-int get length => throw "error: top-level getter called";
-set height(x) {
-  throw "error: top-level setter called";
-}
-
-width() {
-  throw "error: top-level function called";
-}
-
-abstract class A {
-  int get length; //    Abstract instance getter.
-  set height(int x); // Abstract instance setter.
-  int width(); //       Abstract instance method.
-
-  // Must resolve to non-abstract length getter in subclass.
-  get useLength => length;
-  // Must resolve to non-abstract height setter in subclass.
-  setHeight(x) => height = x;
-  // Must resolve to non-abstract width() method in subclass.
-  useWidth() => width();
-}
-
-class A1 extends A {
-  int length; // Implies a length getter.
-  int height; // Implies a height setter.
-  int width() => 345;
-  A1(this.length);
-}
-
-main() {
-  var a = new A1(123);
-  Expect.equals(123, a.useLength);
-  a.setHeight(234);
-  Expect.equals(234, a.height);
-  Expect.equals(345, a.useWidth());
-  print([a.useLength, a.height, a.useWidth()]);
-}
diff --git a/tests/language_2/abstract/object_method_test.dart b/tests/language_2/abstract/object_method_test.dart
deleted file mode 100644
index 87a9e85f155..00000000000
--- a/tests/language_2/abstract/object_method_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  noSuchMethod(_) {
-    Expect.fail('Should not reach here');
-  }
-}
-
-class B extends A {
-  operator ==(other);
-}
-
-class C extends B {}
-
-var a = [new C()];
-
-main() {
-  C c = a[0];
-  a.add(c);
-  Expect.isTrue(c == a[1]);
-}
diff --git a/tests/language_2/abstract/override_adds_optional_args_concrete_subclass_test.dart b/tests/language_2/abstract/override_adds_optional_args_concrete_subclass_test.dart
deleted file mode 100644
index d60e4ebfff3..00000000000
--- a/tests/language_2/abstract/override_adds_optional_args_concrete_subclass_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  void foo() {}
-}
-
-abstract class B extends A {
-  // If this class were concrete, there would be a problem, since `new
-  // B().foo(42)` would be statically allowed, but would lead to invalid
-  // arguments being passed to A.foo.  But since the class is abstract, there is
-  // no problem.
-  void foo([x]);
-}
-
-class C extends B {
-//    ^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_IMPLEMENTATION_OVERRIDE
-// [cfe] The implementation of 'foo' in the non-abstract class 'C' does not conform to its interface.
-
-  // However, there is a problem here because this class is concrete and doesn't
-  // override foo.
-}
-
-void f(B b) {
-  b.foo();
-}
-
-main() {
-  f(new C());
-}
diff --git a/tests/language_2/abstract/override_adds_optional_args_concrete_test.dart b/tests/language_2/abstract/override_adds_optional_args_concrete_test.dart
deleted file mode 100644
index 69e5586074b..00000000000
--- a/tests/language_2/abstract/override_adds_optional_args_concrete_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  void foo() {}
-}
-
-class B extends A {
-//    ^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_IMPLEMENTATION_OVERRIDE
-// [cfe] The implementation of 'foo' in the non-abstract class 'B' does not conform to its interface.
-
-  // This class declaration violates soundness, since it allows `new
-  // B().foo(42)`, which would lead to invalid arguments being passed to A.foo.
-  void foo([x]);
-}
-
-void f(B b) {
-  b.foo();
-}
-
-main() {
-  f(new B());
-}
diff --git a/tests/language_2/abstract/override_adds_optional_args_supercall_test.dart b/tests/language_2/abstract/override_adds_optional_args_supercall_test.dart
deleted file mode 100644
index 91dca0dbc85..00000000000
--- a/tests/language_2/abstract/override_adds_optional_args_supercall_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  void foo() {}
-}
-
-abstract class B extends A {
-  // If this class were concrete, there would be a problem, since `new
-  // B().foo(42)` would be statically allowed, but would lead to invalid
-  // arguments being passed to A.foo.  But since the class is abstract, there is
-  // no problem.
-  void foo([x]);
-}
-
-class C extends B {
-  void foo([x]) {
-    // But it is a problem to try to pass `x` along to super, since the super
-    // method is A.foo.
-    super.foo(x);
-    //       ^
-    // [cfe] Too many positional arguments: 0 allowed, but 1 found.
-    //        ^
-    // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS
-  }
-}
-
-void f(B b) {
-  b.foo(42);
-}
-
-main() {
-  f(new C());
-}
diff --git a/tests/language_2/abstract/override_adds_optional_args_test.dart b/tests/language_2/abstract/override_adds_optional_args_test.dart
deleted file mode 100644
index b740d588949..00000000000
--- a/tests/language_2/abstract/override_adds_optional_args_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test exercises a corner case of override checking that is safe from a
-// soundness perspective, but which we haven't decided whether or not to allow
-// from a usability perspective.
-
-class A {
-  void foo() {}
-}
-
-abstract class B extends A {
-  // If this class were concrete, there would be a problem, since `new
-  // B().foo(42)` would be statically allowed, but would lead to invalid
-  // arguments being passed to A.foo.  But since the class is abstract, there is
-  // no problem.
-  void foo([x]);
-}
-
-class C extends B {
-  void foo([x]) {
-    super.foo();
-  }
-}
-
-void f(B b) {
-  b.foo(42);
-}
-
-main() {
-  f(new C());
-}
diff --git a/tests/language_2/abstract/syntax_runtime_test.dart b/tests/language_2/abstract/syntax_runtime_test.dart
deleted file mode 100644
index 58d46126130..00000000000
--- a/tests/language_2/abstract/syntax_runtime_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-main() {
-  var b = new B();
-  Expect.equals(42, b.foo());
-}
-
-class A {
-
-
-}
-
-class B extends A {
-  foo() => 42;
-  bar() => 87;
-}
diff --git a/tests/language_2/abstract/syntax_test.dart b/tests/language_2/abstract/syntax_test.dart
deleted file mode 100644
index 028ba03bc1f..00000000000
--- a/tests/language_2/abstract/syntax_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  var b = new B();
-  Expect.equals(42, b.foo());
-}
-
-class A {
-//    ^
-// [cfe] The non-abstract class 'A' is missing implementations for these members:
-  foo();
-//^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONCRETE_CLASS_WITH_ABSTRACT_MEMBER
-  static bar();
-  //          ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_FUNCTION_BODY
-  // [cfe] Expected a function body or '=>'.
-}
-
-class B extends A {
-  foo() => 42;
-  bar() => 87;
-}
diff --git a/tests/language_2/accessor_conflict/export2_helper.dart b/tests/language_2/accessor_conflict/export2_helper.dart
deleted file mode 100644
index aeaabb713ee..00000000000
--- a/tests/language_2/accessor_conflict/export2_helper.dart
+++ /dev/null
@@ -1,8 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-export "setter.dart";
-export "getter.dart";
diff --git a/tests/language_2/accessor_conflict/export2_test.dart b/tests/language_2/accessor_conflict/export2_test.dart
deleted file mode 100644
index fa0974c8085..00000000000
--- a/tests/language_2/accessor_conflict/export2_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that a getter and its corresponding setter can be imported from two
-// different files via a common export.  In this test the setter is imported
-// first.
-
-import "package:expect/expect.dart";
-
-import "export2_helper.dart";
-
-main() {
-  getValue = 123;
-  Expect.equals(x, 123);
-  x = 456;
-  Expect.equals(setValue, 456);
-}
diff --git a/tests/language_2/accessor_conflict/export_helper.dart b/tests/language_2/accessor_conflict/export_helper.dart
deleted file mode 100644
index 0cdfeb702ff..00000000000
--- a/tests/language_2/accessor_conflict/export_helper.dart
+++ /dev/null
@@ -1,8 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-export "getter.dart";
-export "setter.dart";
diff --git a/tests/language_2/accessor_conflict/export_test.dart b/tests/language_2/accessor_conflict/export_test.dart
deleted file mode 100644
index 07e3273c480..00000000000
--- a/tests/language_2/accessor_conflict/export_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that a getter and its corresponding setter can be imported from two
-// different files via a common export.  In this test the getter is imported
-// first.
-
-import "package:expect/expect.dart";
-
-import "export_helper.dart";
-
-main() {
-  getValue = 123;
-  Expect.equals(x, 123);
-  x = 456;
-  Expect.equals(setValue, 456);
-}
diff --git a/tests/language_2/accessor_conflict/getter.dart b/tests/language_2/accessor_conflict/getter.dart
deleted file mode 100644
index ee5e14e6cb7..00000000000
--- a/tests/language_2/accessor_conflict/getter.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-var getValue;
-
-get x => getValue;
diff --git a/tests/language_2/accessor_conflict/import2_test.dart b/tests/language_2/accessor_conflict/import2_test.dart
deleted file mode 100644
index 52f2fb0942d..00000000000
--- a/tests/language_2/accessor_conflict/import2_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that a getter and its corresponding setter can be imported from two
-// different files.  In this test the setter is imported first.
-
-import "package:expect/expect.dart";
-
-import "setter.dart";
-import "getter.dart";
-
-main() {
-  getValue = 123;
-  Expect.equals(x, 123);
-  x = 456;
-  Expect.equals(setValue, 456);
-}
diff --git a/tests/language_2/accessor_conflict/import_prefixed2_test.dart b/tests/language_2/accessor_conflict/import_prefixed2_test.dart
deleted file mode 100644
index 267ebf4b792..00000000000
--- a/tests/language_2/accessor_conflict/import_prefixed2_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that a getter and its corresponding setter can be imported from two
-// different files.  In this test the setter is imported first.
-
-import "package:expect/expect.dart";
-
-import "setter.dart" as p;
-import "getter.dart" as p;
-
-main() {
-  p.getValue = 123;
-  Expect.equals(p.x, 123);
-  p.x = 456;
-  Expect.equals(p.setValue, 456);
-}
diff --git a/tests/language_2/accessor_conflict/import_prefixed_test.dart b/tests/language_2/accessor_conflict/import_prefixed_test.dart
deleted file mode 100644
index 8fa2bcc07eb..00000000000
--- a/tests/language_2/accessor_conflict/import_prefixed_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that a getter and its corresponding setter can be imported from two
-// different files.  In this test the getter is imported first.
-
-import "package:expect/expect.dart";
-
-import "getter.dart" as p;
-import "setter.dart" as p;
-
-main() {
-  p.getValue = 123;
-  Expect.equals(p.x, 123);
-  p.x = 456;
-  Expect.equals(p.setValue, 456);
-}
diff --git a/tests/language_2/accessor_conflict/import_test.dart b/tests/language_2/accessor_conflict/import_test.dart
deleted file mode 100644
index aad3437db8f..00000000000
--- a/tests/language_2/accessor_conflict/import_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that a getter and its corresponding setter can be imported from two
-// different files.  In this test the getter is imported first.
-
-import "package:expect/expect.dart";
-
-import "getter.dart";
-import "setter.dart";
-
-main() {
-  getValue = 123;
-  Expect.equals(x, 123);
-  x = 456;
-  Expect.equals(setValue, 456);
-}
diff --git a/tests/language_2/accessor_conflict/setter.dart b/tests/language_2/accessor_conflict/setter.dart
deleted file mode 100644
index 559f7d15823..00000000000
--- a/tests/language_2/accessor_conflict/setter.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-var setValue;
-
-set x(value) {
-  setValue = value;
-}
diff --git a/tests/language_2/argument/assignability_function_typed_runtime_1_test.dart b/tests/language_2/argument/assignability_function_typed_runtime_1_test.dart
deleted file mode 100644
index 909f90c901a..00000000000
--- a/tests/language_2/argument/assignability_function_typed_runtime_1_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// [NNBD non-migrated] Note: This test is specific to legacy mode and
-// deliberately does not have a counter-part in language/.
-
-import "package:expect/expect.dart";
-
-void f(num callback(num x)) {}
-
-Object intToObject(int x) => null;
-Object numToObject(num x) => null;
-Object objectToObject(Object x) => null;
-int intToInt(int x) => null;
-int numToInt(num x) => null;
-int objectToInt(Object x) => null;
-num intToNum(int x) => null;
-num numToNum(num x) => null;
-num objectToNum(Object x) => null;
-
-main() {
-  // Unrelated types (not assignable)
-
-
-
-  // Assignable but fails at runtime.
-  var intToObject2 = intToObject;
-  Expect.throwsTypeError(() => f(intToObject2));
-  var intToNum2 = intToNum;
-
-  var numToObject2 = numToObject;
-
-
-  // Ok
-
-
-
-
-}
diff --git a/tests/language_2/argument/assignability_function_typed_runtime_2_test.dart b/tests/language_2/argument/assignability_function_typed_runtime_2_test.dart
deleted file mode 100644
index d77618c0101..00000000000
--- a/tests/language_2/argument/assignability_function_typed_runtime_2_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// [NNBD non-migrated] Note: This test is specific to legacy mode and
-// deliberately does not have a counter-part in language/.
-
-import "package:expect/expect.dart";
-
-void f(num callback(num x)) {}
-
-Object intToObject(int x) => null;
-Object numToObject(num x) => null;
-Object objectToObject(Object x) => null;
-int intToInt(int x) => null;
-int numToInt(num x) => null;
-int objectToInt(Object x) => null;
-num intToNum(int x) => null;
-num numToNum(num x) => null;
-num objectToNum(Object x) => null;
-
-main() {
-  // Unrelated types (not assignable)
-
-
-
-  // Assignable but fails at runtime.
-  var intToObject2 = intToObject;
-
-  var intToNum2 = intToNum;
-  Expect.throwsTypeError(() => f(intToNum2));
-  var numToObject2 = numToObject;
-
-
-  // Ok
-
-
-
-
-}
diff --git a/tests/language_2/argument/assignability_function_typed_runtime_3_test.dart b/tests/language_2/argument/assignability_function_typed_runtime_3_test.dart
deleted file mode 100644
index 31b75a06305..00000000000
--- a/tests/language_2/argument/assignability_function_typed_runtime_3_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// [NNBD non-migrated] Note: This test is specific to legacy mode and
-// deliberately does not have a counter-part in language/.
-
-import "package:expect/expect.dart";
-
-void f(num callback(num x)) {}
-
-Object intToObject(int x) => null;
-Object numToObject(num x) => null;
-Object objectToObject(Object x) => null;
-int intToInt(int x) => null;
-int numToInt(num x) => null;
-int objectToInt(Object x) => null;
-num intToNum(int x) => null;
-num numToNum(num x) => null;
-num objectToNum(Object x) => null;
-
-main() {
-  // Unrelated types (not assignable)
-
-
-
-  // Assignable but fails at runtime.
-  var intToObject2 = intToObject;
-
-  var intToNum2 = intToNum;
-
-  var numToObject2 = numToObject;
-  Expect.throwsTypeError(() => f(numToObject2));
-
-  // Ok
-
-
-
-
-}
diff --git a/tests/language_2/argument/assignability_function_typed_runtime_4_test.dart b/tests/language_2/argument/assignability_function_typed_runtime_4_test.dart
deleted file mode 100644
index 8a6b65088e5..00000000000
--- a/tests/language_2/argument/assignability_function_typed_runtime_4_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-void f(num callback(num x)) {}
-
-Object intToObject(int x) => null;
-Object numToObject(num x) => null;
-Object objectToObject(Object x) => null;
-int intToInt(int x) => null;
-int numToInt(num x) => null;
-int objectToInt(Object x) => null;
-num intToNum(int x) => null;
-num numToNum(num x) => null;
-num objectToNum(Object x) => null;
-
-main() {
-  // Unrelated types (not assignable)
-
-
-
-  // Assignable but fails at runtime.
-  var intToObject2 = intToObject;
-
-  var intToNum2 = intToNum;
-
-  var numToObject2 = numToObject;
-
-
-  // Ok
-  f(numToNum);
-
-
-
-}
diff --git a/tests/language_2/argument/assignability_function_typed_runtime_5_test.dart b/tests/language_2/argument/assignability_function_typed_runtime_5_test.dart
deleted file mode 100644
index 257e0d50681..00000000000
--- a/tests/language_2/argument/assignability_function_typed_runtime_5_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-void f(num callback(num x)) {}
-
-Object intToObject(int x) => null;
-Object numToObject(num x) => null;
-Object objectToObject(Object x) => null;
-int intToInt(int x) => null;
-int numToInt(num x) => null;
-int objectToInt(Object x) => null;
-num intToNum(int x) => null;
-num numToNum(num x) => null;
-num objectToNum(Object x) => null;
-
-main() {
-  // Unrelated types (not assignable)
-
-
-
-  // Assignable but fails at runtime.
-  var intToObject2 = intToObject;
-
-  var intToNum2 = intToNum;
-
-  var numToObject2 = numToObject;
-
-
-  // Ok
-
-  f(numToInt);
-
-
-}
diff --git a/tests/language_2/argument/assignability_function_typed_runtime_6_test.dart b/tests/language_2/argument/assignability_function_typed_runtime_6_test.dart
deleted file mode 100644
index 3c25c0b5aa6..00000000000
--- a/tests/language_2/argument/assignability_function_typed_runtime_6_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-void f(num callback(num x)) {}
-
-Object intToObject(int x) => null;
-Object numToObject(num x) => null;
-Object objectToObject(Object x) => null;
-int intToInt(int x) => null;
-int numToInt(num x) => null;
-int objectToInt(Object x) => null;
-num intToNum(int x) => null;
-num numToNum(num x) => null;
-num objectToNum(Object x) => null;
-
-main() {
-  // Unrelated types (not assignable)
-
-
-
-  // Assignable but fails at runtime.
-  var intToObject2 = intToObject;
-
-  var intToNum2 = intToNum;
-
-  var numToObject2 = numToObject;
-
-
-  // Ok
-
-
-  f(objectToNum);
-
-}
diff --git a/tests/language_2/argument/assignability_function_typed_runtime_7_test.dart b/tests/language_2/argument/assignability_function_typed_runtime_7_test.dart
deleted file mode 100644
index 31aa28c66a2..00000000000
--- a/tests/language_2/argument/assignability_function_typed_runtime_7_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-void f(num callback(num x)) {}
-
-Object intToObject(int x) => null;
-Object numToObject(num x) => null;
-Object objectToObject(Object x) => null;
-int intToInt(int x) => null;
-int numToInt(num x) => null;
-int objectToInt(Object x) => null;
-num intToNum(int x) => null;
-num numToNum(num x) => null;
-num objectToNum(Object x) => null;
-
-main() {
-  // Unrelated types (not assignable)
-
-
-
-  // Assignable but fails at runtime.
-  var intToObject2 = intToObject;
-
-  var intToNum2 = intToNum;
-
-  var numToObject2 = numToObject;
-
-
-  // Ok
-
-
-
-  f(objectToInt);
-}
diff --git a/tests/language_2/argument/assignability_function_typed_runtime_test.dart b/tests/language_2/argument/assignability_function_typed_runtime_test.dart
deleted file mode 100644
index 45375c71d07..00000000000
--- a/tests/language_2/argument/assignability_function_typed_runtime_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-void f(num callback(num x)) {}
-
-Object intToObject(int x) => null;
-Object numToObject(num x) => null;
-Object objectToObject(Object x) => null;
-int intToInt(int x) => null;
-int numToInt(num x) => null;
-int objectToInt(Object x) => null;
-num intToNum(int x) => null;
-num numToNum(num x) => null;
-num objectToNum(Object x) => null;
-
-main() {
-  // Unrelated types (not assignable)
-
-
-
-  // Assignable but fails at runtime.
-  var intToObject2 = intToObject;
-
-  var intToNum2 = intToNum;
-
-  var numToObject2 = numToObject;
-
-
-  // Ok
-
-
-
-
-}
diff --git a/tests/language_2/argument/assignability_function_typed_test.dart b/tests/language_2/argument/assignability_function_typed_test.dart
deleted file mode 100644
index 561149483b6..00000000000
--- a/tests/language_2/argument/assignability_function_typed_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void f(num callback(num x)) {}
-
-Object intToObject(int x) => null;
-Object numToObject(num x) => null;
-Object objectToObject(Object x) => null;
-int intToInt(int x) => null;
-int numToInt(num x) => null;
-int objectToInt(Object x) => null;
-num intToNum(int x) => null;
-num numToNum(num x) => null;
-num objectToNum(Object x) => null;
-
-main() {
-  // Unrelated types (not assignable)
-  f(intToInt);
-  //^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] The argument type 'int Function(int)' can't be assigned to the parameter type 'num Function(num)'.
-  f(objectToObject);
-  //^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] The argument type 'Object Function(Object)' can't be assigned to the parameter type 'num Function(num)'.
-
-  // Assignable but fails at runtime.
-  var intToObject2 = intToObject;
-  Expect.throwsTypeError(() => f(intToObject2));
-  var intToNum2 = intToNum;
-  Expect.throwsTypeError(() => f(intToNum2));
-  var numToObject2 = numToObject;
-  Expect.throwsTypeError(() => f(numToObject2));
-
-  // Ok
-  f(numToNum);
-  f(numToInt);
-  f(objectToNum);
-  f(objectToInt);
-}
diff --git a/tests/language_2/argument/named_argument_test.dart b/tests/language_2/argument/named_argument_test.dart
deleted file mode 100644
index a9b09ecc5f5..00000000000
--- a/tests/language_2/argument/named_argument_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  var c1 = ({b, a}) => 'a: $a b: $b';
-  var c2 = ({a, b}) => 'a: $a b: $b';
-
-  Expect.equals('a: 2 b: 1', c1(b: 1, a: 2));
-  Expect.equals('a: 1 b: 2', c1(a: 1, b: 2));
-
-  Expect.equals('a: 2 b: 1', c2(b: 1, a: 2));
-  Expect.equals('a: 1 b: 2', c2(a: 1, b: 2));
-}
diff --git a/tests/language_2/argument/named_in_const_creation_test.dart b/tests/language_2/argument/named_in_const_creation_test.dart
deleted file mode 100644
index 9db0b4eac55..00000000000
--- a/tests/language_2/argument/named_in_const_creation_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  final x;
-  final y;
-  const A(a, {b})
-      : x = a,
-        y = b;
-  static const test = const A(1, b: 2);
-}
-
-main() {
-  A a = A.test;
-  Expect.equals(1, a.x);
-  Expect.equals(2, a.y);
-}
diff --git a/tests/language_2/argument/not_enough_positional_arguments_test.dart b/tests/language_2/argument/not_enough_positional_arguments_test.dart
deleted file mode 100644
index 61d3de48069..00000000000
--- a/tests/language_2/argument/not_enough_positional_arguments_test.dart
+++ /dev/null
@@ -1,80 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-foo(a, [b]) {}
-
-bar(a, {b}) {}
-
-class A {
-  A();
-  A.test(a, [b]);
-}
-
-class B {
-  B()
-    : super.test(b: 1)
-    //^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_CONSTRUCTOR_IN_INITIALIZER
-    // [cfe] Superclass has no constructor named 'Object.test'.
-  ;
-}
-
-class C extends A {
-  C()
-    : super.test(b: 1)
-    //           ^
-    // [analyzer] COMPILE_TIME_ERROR.NOT_ENOUGH_POSITIONAL_ARGUMENTS
-    //          ^^^^^^
-    // [cfe] Too few positional arguments: 1 required, 0 given.
-    //           ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_NAMED_PARAMETER
-  ;
-}
-
-class D {
-  D();
-  D.test(a, {b});
-}
-
-class E extends D {
-  E()
-    : super.test(b: 1)
-    //           ^
-    // [analyzer] COMPILE_TIME_ERROR.NOT_ENOUGH_POSITIONAL_ARGUMENTS
-    //          ^^^^^^
-    // [cfe] Too few positional arguments: 1 required, 0 given.
-  ;
-}
-
-main() {
-  new A.test(b: 1);
-  //         ^
-  // [analyzer] COMPILE_TIME_ERROR.NOT_ENOUGH_POSITIONAL_ARGUMENTS
-  //        ^^^^^^
-  // [cfe] Too few positional arguments: 1 required, 0 given.
-  //         ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_NAMED_PARAMETER
-  new B();
-  new C();
-  new D.test(b: 1);
-  //         ^
-  // [analyzer] COMPILE_TIME_ERROR.NOT_ENOUGH_POSITIONAL_ARGUMENTS
-  //        ^^^^^^
-  // [cfe] Too few positional arguments: 1 required, 0 given.
-  new E();
-  foo(b: 1);
-  //  ^
-  // [analyzer] COMPILE_TIME_ERROR.NOT_ENOUGH_POSITIONAL_ARGUMENTS
-  // ^^^^^^
-  // [cfe] Too few positional arguments: 1 required, 0 given.
-  //  ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_NAMED_PARAMETER
-  bar(b: 1);
-  //  ^
-  // [analyzer] COMPILE_TIME_ERROR.NOT_ENOUGH_POSITIONAL_ARGUMENTS
-  // ^^^^^^
-  // [cfe] Too few positional arguments: 1 required, 0 given.
-}
diff --git a/tests/language_2/argument/not_enough_positional_runtime_test.dart b/tests/language_2/argument/not_enough_positional_runtime_test.dart
deleted file mode 100644
index 64450ae65ce..00000000000
--- a/tests/language_2/argument/not_enough_positional_runtime_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-foo(a, [b]) {}
-
-bar(a, {b}) {}
-
-class A {
-  A();
-  A.test(a, [b]);
-}
-
-class B {
-  B()
-
-  ;
-}
-
-class C extends A {
-  C()
-
-  ;
-}
-
-class D {
-  D();
-  D.test(a, {b});
-}
-
-class E extends D {
-  E()
-
-  ;
-}
-
-main() {
-
-  new B();
-  new C();
-
-  new E();
-
-
-}
diff --git a/tests/language_2/assert/assert_test.dart b/tests/language_2/assert/assert_test.dart
deleted file mode 100644
index 5914dcb218f..00000000000
--- a/tests/language_2/assert/assert_test.dart
+++ /dev/null
@@ -1,98 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--enable-asserts
-// dart2jsOptions=--enable-asserts
-// dart2wasmOptions=--enable-asserts
-
-// @dart = 2.9
-
-// Dart test program testing assert statements.
-
-import "package:expect/expect.dart";
-
-int testTrue() {
-  int i = 0;
-  try {
-    assert(true);
-  } on AssertionError {
-    i = 1;
-  }
-  return i;
-}
-
-int testFalse() {
-  int i = 0;
-  try {
-    assert(false);
-  } on AssertionError {
-    i = 1;
-  }
-  return i;
-}
-
-dynamic unknown(dynamic a) {
-  return a ? true : false;
-}
-
-int testBoolean(bool value) {
-  int i = 0;
-  try {
-    assert(value);
-  } on AssertionError {
-    i = 1;
-  }
-  return i;
-}
-
-int testDynamic(dynamic value) {
-  int i = 0;
-  try {
-    assert(value);
-  } on AssertionError {
-    i = 1;
-  }
-  return i;
-}
-
-int testImmediatelyInvokedFunctionExpression(bool value) {
-  int i = 0;
-  try {
-    assert((() => value)());
-  } on AssertionError {
-    i = 1;
-  }
-  return i;
-}
-
-AssertionError testMessage(value, message) {
-  try {
-    assert(value, message);
-  } on AssertionError catch (error) {
-    return error;
-  }
-  return null;
-}
-
-main() {
-  Expect.equals(0, testTrue());
-  Expect.equals(0, testBoolean(true));
-  Expect.equals(0, testDynamic(unknown(true)));
-  Expect.equals(0, testImmediatelyInvokedFunctionExpression(true));
-
-  Expect.equals(1, testFalse());
-  Expect.equals(1, testBoolean(false));
-  Expect.equals(1, testDynamic(unknown(false)));
-  Expect.equals(1, testImmediatelyInvokedFunctionExpression(false));
-
-  Expect.throwsTypeError(() => testBoolean(null));
-  Expect.throwsTypeError(() => testDynamic(null));
-  Expect.throwsTypeError(() => testDynamic(42));
-  Expect.throwsTypeError(() => testDynamic(() => true));
-  Expect.throwsTypeError(() => testDynamic(() => false));
-  Expect.throwsTypeError(() => testDynamic(() => 42));
-  Expect.throwsTypeError(() => testDynamic(() => null));
-
-  Expect.equals(1234, testMessage(false, 1234).message);
-  Expect.equals('hi', testMessage(false, 'hi').message);
-}
diff --git a/tests/language_2/assert/assignable_type_test.dart b/tests/language_2/assert/assignable_type_test.dart
deleted file mode 100644
index b7639d5c2eb..00000000000
--- a/tests/language_2/assert/assignable_type_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test arithmetic operations.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-// This test crashes if we recompute type of AssertAssignableInstr based on its
-// output types. By doing that we would eliminate not only the unnecessary
-// AssertAssignableInstr but also the trailing class check.
-
-main() {
-  // Foul up  IC data in integer's unary minus.
-  var y = -0x80000000;
-  testInt64List();
-}
-
-testInt64List() {
-  var array = new List<dynamic>.filled(10, null);
-  testInt64ListImpl(array);
-}
-
-testInt64ListImpl(array) {
-  for (int i = 0; i < 10; ++i) {}
-  int sum = 0;
-  for (int i = 0; i < 10; ++i) {
-    array[i] = -0x80000000000000 + i;
-  }
-}
diff --git a/tests/language_2/assert/initializer_const_error2_runtime_test.dart b/tests/language_2/assert/initializer_const_error2_runtime_test.dart
deleted file mode 100644
index 30d70193d5d..00000000000
--- a/tests/language_2/assert/initializer_const_error2_runtime_test.dart
+++ /dev/null
@@ -1,89 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--enable-asserts
-// dart2jsOptions=--enable-asserts
-//
-// Test of asserts in initializer lists.
-
-import "package:expect/expect.dart";
-
-class C {
-  final int x;
-  // Const constructors.
-  const C.cc01(this.x, y) : assert(x < y);
-  const C.cc02(x, y)
-      : x = x,
-        assert(x < y);
-  const C.cc03(x, y)
-      : assert(x < y),
-        x = x;
-  const C.cc04(this.x, y)
-      : assert(x < y),
-        super();
-  const C.cc05(x, y)
-      : x = x,
-        assert(x < y),
-        super();
-  const C.cc06(x, y)
-      : assert(x < y),
-        x = x,
-        super();
-  const C.cc07(x, y)
-      : assert(x < y),
-        x = x,
-        assert(y > x),
-        super();
-  const C.cc08(this.x, y) : assert(x < y, "$x < $y");
-  const C.cc09(this.x, y) : assert(x < y,);
-  const C.cc10(this.x, y) : assert(x < y, "$x < $y",);
-}
-
-main() {
-  const x = 3;
-  {
-
-    const C.cc01(2, x);
-  }
-  {
-
-    const C.cc02(2, x);
-  }
-  {
-
-    const C.cc03(2, x);
-  }
-  {
-
-    const C.cc04(2, x);
-  }
-  {
-
-    const C.cc05(2, x);
-  }
-  {
-
-    const C.cc06(2, x);
-  }
-  {
-
-    const C.cc07(2, x);
-  }
-  {
-
-    const C.cc08(2, x);
-  }
-  {
-
-    const C.cc09(2, x);
-  }
-  {
-
-    const C.cc10(2, x);
-  }
-}
diff --git a/tests/language_2/assert/initializer_const_error2_test.dart b/tests/language_2/assert/initializer_const_error2_test.dart
deleted file mode 100644
index 26cfb85e3ad..00000000000
--- a/tests/language_2/assert/initializer_const_error2_test.dart
+++ /dev/null
@@ -1,126 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--enable-asserts
-// dart2jsOptions=--enable-asserts
-//
-// Test of asserts in initializer lists.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C {
-  final int x;
-  // Const constructors.
-  const C.cc01(this.x, y) : assert(x < y);
-  const C.cc02(x, y)
-      : x = x,
-        assert(x < y);
-  const C.cc03(x, y)
-      : assert(x < y),
-        x = x;
-  const C.cc04(this.x, y)
-      : assert(x < y),
-        super();
-  const C.cc05(x, y)
-      : x = x,
-        assert(x < y),
-        super();
-  const C.cc06(x, y)
-      : assert(x < y),
-        x = x,
-        super();
-  const C.cc07(x, y)
-      : assert(x < y),
-        x = x,
-        assert(y > x),
-        super();
-  const C.cc08(this.x, y) : assert(x < y, "$x < $y");
-  const C.cc09(this.x, y) : assert(x < y,);
-  const C.cc10(this.x, y) : assert(x < y, "$x < $y",);
-}
-
-main() {
-  const x = 3;
-  {
-    const x = 1;
-    const C.cc01(2, x);
-//  ^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_THROWS_EXCEPTION
-//        ^
-// [cfe] Constant evaluation error:
-  }
-  {
-    const x = 1;
-    const C.cc02(2, x);
-//  ^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_THROWS_EXCEPTION
-//        ^
-// [cfe] Constant evaluation error:
-  }
-  {
-    const x = 1;
-    const C.cc03(2, x);
-//  ^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_THROWS_EXCEPTION
-//        ^
-// [cfe] Constant evaluation error:
-  }
-  {
-    const x = 1;
-    const C.cc04(2, x);
-//  ^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_THROWS_EXCEPTION
-//        ^
-// [cfe] Constant evaluation error:
-  }
-  {
-    const x = 1;
-    const C.cc05(2, x);
-//  ^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_THROWS_EXCEPTION
-//        ^
-// [cfe] Constant evaluation error:
-  }
-  {
-    const x = 1;
-    const C.cc06(2, x);
-//  ^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_THROWS_EXCEPTION
-//        ^
-// [cfe] Constant evaluation error:
-  }
-  {
-    const x = 1;
-    const C.cc07(2, x);
-//  ^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_THROWS_EXCEPTION
-//        ^
-// [cfe] Constant evaluation error:
-  }
-  {
-    const x = 1;
-    const C.cc08(2, x);
-//  ^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_THROWS_EXCEPTION
-//        ^
-// [cfe] Constant evaluation error:
-  }
-  {
-    const x = 1;
-    const C.cc09(2, x);
-//  ^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_THROWS_EXCEPTION
-//        ^
-// [cfe] Constant evaluation error:
-  }
-  {
-    const x = 1;
-    const C.cc10(2, x);
-//  ^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_THROWS_EXCEPTION
-//        ^
-// [cfe] Constant evaluation error:
-  }
-}
diff --git a/tests/language_2/assert/initializer_const_error_runtime_test.dart b/tests/language_2/assert/initializer_const_error_runtime_test.dart
deleted file mode 100644
index 2296e0de71d..00000000000
--- a/tests/language_2/assert/initializer_const_error_runtime_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class C {
-  static bool check(x, y) => x < y;
-  final int x;
-  const C(this.x);
-  // The expression is not a potentially constant expression.
-  // This is a compile-time error even in production mode.
-  const C.bc03(this.x, y)
-
-      ;
-}
-
-main() {
-  var c = new C.bc03(1, 2);
-  if (c.x != 1) throw "non-trivial use of c";
-}
diff --git a/tests/language_2/assert/initializer_const_error_test.dart b/tests/language_2/assert/initializer_const_error_test.dart
deleted file mode 100644
index d3a3db5b7c9..00000000000
--- a/tests/language_2/assert/initializer_const_error_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class C {
-  static bool check(x, y) => x < y;
-  final int x;
-  const C(this.x);
-  // The expression is not a potentially constant expression.
-  // This is a compile-time error even in production mode.
-  const C.bc03(this.x, y)
-      : assert(check(x, y))
-      //       ^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.INVALID_CONSTANT
-      // [cfe] Method invocation is not a constant expression.
-      ;
-}
-
-main() {
-  var c = new C.bc03(1, 2);
-  if (c.x != 1) throw "non-trivial use of c";
-}
diff --git a/tests/language_2/assert/initializer_const_function_runtime_test.dart b/tests/language_2/assert/initializer_const_function_runtime_test.dart
deleted file mode 100644
index 78a2d005f3b..00000000000
--- a/tests/language_2/assert/initializer_const_function_runtime_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class C {
-  static bool staticTrue() => true;
-  final int x;
-
-  // Functions as parameters to assert are no longer supported in Dart 2.0, so
-  // this is now a static type error.
-  const C.bc01(this.x, y)
-
-      ;
-}
-
-main() {
-  new C.bc01(1, 2);
-}
diff --git a/tests/language_2/assert/initializer_const_function_test.dart b/tests/language_2/assert/initializer_const_function_test.dart
deleted file mode 100644
index 3c071d8cb4c..00000000000
--- a/tests/language_2/assert/initializer_const_function_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class C {
-  static bool staticTrue() => true;
-  final int x;
-
-  // Functions as parameters to assert are no longer supported in Dart 2.0, so
-  // this is now a static type error.
-  const C.bc01(this.x, y)
-      : assert(staticTrue)
-      //       ^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.NON_BOOL_EXPRESSION
-      // [cfe] A value of type 'bool Function()' can't be assigned to a variable of type 'bool'.
-      ;
-}
-
-main() {
-  new C.bc01(1, 2);
-}
diff --git a/tests/language_2/assert/initializer_test.dart b/tests/language_2/assert/initializer_test.dart
deleted file mode 100644
index ffc91231232..00000000000
--- a/tests/language_2/assert/initializer_test.dart
+++ /dev/null
@@ -1,135 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--enable-asserts
-// dart2jsOptions=--enable-asserts
-// dart2wasmOptions=--enable-asserts
-
-// @dart = 2.9
-
-// Dart test program testing assert statements.
-
-import "package:expect/expect.dart";
-
-class C {
-  static bool check(x, y) => x < y;
-  static bool staticTrue() => true;
-  final int x;
-  const C(this.x);
-
-  C.c01(this.x, y) : assert(x < y);
-  C.c02(x, y) : x = x, assert(x < y);
-  C.c03(x, y) : assert(x < y), x = x;
-  C.c05(this.x, y) : assert(x < y), super();
-  C.c06(x, y) : x = x, assert(x < y), super();
-  C.c07(x, y) : assert(x < y), x = x, super();
-  C.c08(x, y) : assert(x < y), x = x, assert(y > x), super();
-  C.c09(this.x, y) : assert(x < y, "$x < $y");
-  C.c10(this.x, y) : assert(x < y,);
-  C.c11(this.x, y) : assert(x < y, "$x < $y",);
-
-  const C.cc01(this.x, y) : assert(x < y);
-  const C.cc02(x, y) : x = x, assert(x < y);
-  const C.cc03(x, y) : assert(x < y), x = x;
-  const C.cc05(this.x, y) : assert(x < y), super();
-  const C.cc06(x, y) : x = x, assert(x < y), super();
-  const C.cc07(x, y) : assert(x < y), x = x, super();
-  const C.cc08(x, y) : assert(x < y), x = x, assert(y > x), super();
-  const C.cc09(this.x, y) : assert(x < y, "$x < $y");
-  const C.cc10(this.x, y) : assert(x < y,);
-  const C.cc11(this.x, y) : assert(x < y, "$x < $y",);
-
-  C.nc01(this.x, y) : assert(check(x, y));
-  C.nc02(x, y) : x = x, assert(check(x, y));
-  C.nc03(x, y) : assert(check(x, y)), x = x;
-  C.nc05(this.x, y) : assert(check(x, y)), super();
-  C.nc06(x, y) : x = x, assert(check(x, y)), super();
-  C.nc07(x, y) : assert(check(x, y)), x = x, super();
-  C.nc08(x, y) : assert(check(x, y)), x = x, assert(y > x), super();
-  C.nc09(this.x, y) : assert(check(x, y), "$x < $y");
-  C.nc10(this.x, y) : assert(check(x, y),);
-  C.nc11(this.x, y) : assert(check(x, y), "$x < $y",);
-
-  C.fc01(this.x, y) : assert((() => x < y)());
-  C.fc02(x, y) : x = x, assert((() => x < y)());
-  C.fc03(x, y) : assert((() => x < y)()), x = x;
-  C.fc05(this.x, y) : assert((() => x < y)()), super();
-  C.fc06(x, y) : x = x, assert((() => x < y)()), super();
-  C.fc07(x, y) : assert((() => x < y)()), x = x, super();
-  C.fc08(x, y) : assert((() => x < y)()),x = x, assert(y > x), super();
-  C.fc09(this.x, y) : assert((() => x < y)(), "$x < $y");
-  C.fc10(this.x, y) : assert((() => x < y)(),);
-  C.fc11(this.x, y) : assert((() => x < y)(), "$x < $y",);
-}
-
-
-main() {
-  // Test all constructors with both succeeding and failing asserts.
-  test(1, 2);
-  test(2, 1);
-
-  const c1 = const C(1);
-
-  // Asserts do not affect canonization.
-  Expect.identical(c1, const C.cc01(1, 2));
-  Expect.identical(c1, const C.cc02(1, 2));
-  Expect.identical(c1, const C.cc03(1, 2));
-  Expect.identical(c1, const C.cc05(1, 2));
-  Expect.identical(c1, const C.cc06(1, 2));
-  Expect.identical(c1, const C.cc07(1, 2));
-  Expect.identical(c1, const C.cc08(1, 2));
-  Expect.identical(c1, const C.cc09(1, 2));
-  Expect.identical(c1, const C.cc10(1, 2));
-  Expect.identical(c1, const C.cc11(1, 2));
-}
-
-void test(int x, int y) {
-  bool assertionsEnabled = false;
-  assert(assertionsEnabled = true);
-
-  bool Function(C Function()) doTest = (assertionsEnabled && x >= y)
-    ? (f) { Expect.throwsAssertionError(f); }
-    : (f) { Expect.equals(x, f().x); };
-
-  doTest(() => new C.c01(x, y));
-  doTest(() => new C.c02(x, y));
-  doTest(() => new C.c03(x, y));
-  doTest(() => new C.c05(x, y));
-  doTest(() => new C.c06(x, y));
-  doTest(() => new C.c07(x, y));
-  doTest(() => new C.c08(x, y));
-  doTest(() => new C.c09(x, y));
-  doTest(() => new C.c10(x, y));
-  doTest(() => new C.c11(x, y));
-  doTest(() => new C.cc01(x, y));
-  doTest(() => new C.cc02(x, y));
-  doTest(() => new C.cc03(x, y));
-  doTest(() => new C.cc05(x, y));
-  doTest(() => new C.cc06(x, y));
-  doTest(() => new C.cc07(x, y));
-  doTest(() => new C.cc08(x, y));
-  doTest(() => new C.cc09(x, y));
-  doTest(() => new C.cc10(x, y));
-  doTest(() => new C.cc11(x, y));
-  doTest(() => new C.nc01(x, y));
-  doTest(() => new C.nc02(x, y));
-  doTest(() => new C.nc03(x, y));
-  doTest(() => new C.nc05(x, y));
-  doTest(() => new C.nc06(x, y));
-  doTest(() => new C.nc07(x, y));
-  doTest(() => new C.nc08(x, y));
-  doTest(() => new C.nc09(x, y));
-  doTest(() => new C.nc10(x, y));
-  doTest(() => new C.nc11(x, y));
-  doTest(() => new C.fc01(x, y));
-  doTest(() => new C.fc02(x, y));
-  doTest(() => new C.fc03(x, y));
-  doTest(() => new C.fc05(x, y));
-  doTest(() => new C.fc06(x, y));
-  doTest(() => new C.fc07(x, y));
-  doTest(() => new C.fc08(x, y));
-  doTest(() => new C.fc09(x, y));
-  doTest(() => new C.fc10(x, y));
-  doTest(() => new C.fc11(x, y));
-}
-
diff --git a/tests/language_2/assert/message_test.dart b/tests/language_2/assert/message_test.dart
deleted file mode 100644
index df011194bdb..00000000000
--- a/tests/language_2/assert/message_test.dart
+++ /dev/null
@@ -1,106 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-
-import "package:async_helper/async_helper.dart";
-import "package:expect/expect.dart";
-
-// TODO(rnystrom): Unify with assert_with_message_test.dart.
-
-main() {
-  // Only run with asserts enabled mode.
-  bool assertsEnabled = false;
-  assert(assertsEnabled = true);
-  if (!assertsEnabled) return;
-
-  // Basics.
-  assert(true, "");
-
-  int x = null;
-  // Successful asserts won't execute message.
-  assert(true, x + 42);
-  assert(true, throw "unreachable");
-
-  // Can use any value as message.
-  try {
-    assert(false, 42);
-  } on AssertionError catch (e) {
-    Expect.equals(42, e.message);
-  }
-
-  try {
-    assert(false, "");
-  } on AssertionError catch (e) {
-    Expect.equals("", e.message);
-  }
-
-  try {
-    assert(false, null);
-  } on AssertionError catch (e) {
-    Expect.equals(null, e.message);
-  }
-
-  // Test expression can throw.
-  try {
-    assert(throw "test", throw "message");
-  } on String catch (e) {
-    Expect.equals("test", e);
-  }
-
-  // Message expression can throw.
-  try {
-    assert(false, throw "message");
-  } on String catch (e) {
-    Expect.equals("message", e);
-  }
-
-  // Failing asserts evaluate message after test.
-  var list = [];
-  try {
-    assert((list..add(1)).isEmpty, (list..add(3)).length);
-  } on AssertionError catch (e) {
-    Expect.equals(2, e.message);
-    Expect.listEquals([1, 3], list);
-  }
-
-  asyncStart();
-  asyncTests().then((_) {
-    asyncEnd();
-  });
-}
-
-Future asyncTests() async {
-  // You can await in both condition and message.
-  assert(true, await 0);
-  assert(await true, 1);
-  assert(await true, await 2);
-
-  // Successful asserts won't await/evaluate message.
-  Future unreachable() => throw "unreachable";
-  assert(await true, await unreachable());
-
-  try {
-    assert(false, await 3);
-  } on AssertionError catch (e) {
-    Expect.equals(3, e.message);
-  }
-
-  var falseFuture = new Future.value(false);
-  var numFuture = new Future.value(4);
-
-  try {
-    assert(await falseFuture, await numFuture);
-  } on AssertionError catch (e) {
-    Expect.equals(4, e.message);
-  }
-
-  try {
-    assert(await falseFuture, await new Future.error("error"));
-  } on String catch (e) {
-    Expect.equals("error", e);
-  }
-}
diff --git a/tests/language_2/assert/trailing_comma_runtime_test.dart b/tests/language_2/assert/trailing_comma_runtime_test.dart
deleted file mode 100644
index 00556ca4b9f..00000000000
--- a/tests/language_2/assert/trailing_comma_runtime_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-main() {
-  assert(true);
-  assert(true,);
-  assert(true,"message");
-  assert(true,"message",);
-
-
-}
diff --git a/tests/language_2/assert/trailing_comma_test.dart b/tests/language_2/assert/trailing_comma_test.dart
deleted file mode 100644
index 5a27888f71b..00000000000
--- a/tests/language_2/assert/trailing_comma_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  assert(true);
-  assert(true,);
-  assert(true,"message");
-  assert(true,"message",);
-  assert(true,"message",extra);
-  //                    ^^^^^
-  // [analyzer] SYNTACTIC_ERROR.UNEXPECTED_TOKEN
-  // [cfe] Unexpected token 'extra'.
-  assert(true,"message",,);
-  //                    ^
-  // [analyzer] SYNTACTIC_ERROR.UNEXPECTED_TOKEN
-  // [cfe] Unexpected token ','.
-}
diff --git a/tests/language_2/assert/with_message_test.dart b/tests/language_2/assert/with_message_test.dart
deleted file mode 100644
index 78c486358a0..00000000000
--- a/tests/language_2/assert/with_message_test.dart
+++ /dev/null
@@ -1,90 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  var assertsEnabled = false;
-  assert((assertsEnabled = true));
-  if (!assertsEnabled) return;
-
-  // TODO(rnystrom): Test cases where the first argument to assert() is a
-  // function.
-
-  testAssertFails();
-  testAssertDoesNotFail();
-  testNullMessage();
-  testDoesNotEvaluateMessageIfAssertSucceeds();
-  testMessageExpressionThatThrows();
-  testCallsToStringOnMessageLazily();
-}
-
-/// A class with a custom toString() that tracks when it is called.
-class ToString {
-  bool calledToString = false;
-
-  String toString() {
-    calledToString = true;
-    return "toString!";
-  }
-}
-
-testAssertFails() {
-  try {
-    assert(false, "Oops");
-    Expect.fail("Assert should throw.");
-  } catch (e) {
-    Expect.isTrue(e.toString().contains("Oops"));
-  }
-}
-
-testAssertDoesNotFail() {
-  try {
-    assert(true, "Oops");
-  } catch (e) {
-    Expect.fail("Assert should not throw.");
-  }
-}
-
-testNullMessage() {
-  try {
-    assert(false, null);
-    Expect.fail("Assert should throw.");
-  } catch (e) {
-    Expect.isTrue(e.toString().contains("is not true"));
-  }
-}
-
-testDoesNotEvaluateMessageIfAssertSucceeds() {
-  try {
-    var evaluated = false;
-    assert(true, evaluated = true);
-    Expect.isFalse(evaluated);
-  } catch (e) {
-    Expect.fail("Assert should not throw.");
-  }
-}
-
-testMessageExpressionThatThrows() {
-  try {
-    assert(false, throw "dang");
-    Expect.fail("Should throw");
-  } catch (e) {
-    Expect.equals(e, "dang");
-  }
-}
-
-testCallsToStringOnMessageLazily() {
-  var toString = new ToString();
-  try {
-    assert(false, toString);
-    Expect.fail("Assert should throw.");
-  } catch (e) {
-    Expect.isFalse(toString.calledToString);
-    Expect.isTrue(e.toString().contains("Instance of 'ToString'"));
-    Expect.isFalse(toString.calledToString);
-  }
-}
diff --git a/tests/language_2/assert/with_type_test_or_cast_test.dart b/tests/language_2/assert/with_type_test_or_cast_test.dart
deleted file mode 100644
index a5f642f92e4..00000000000
--- a/tests/language_2/assert/with_type_test_or_cast_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Issue 3741: generic type tests and casts fail in assertion statements
-// when run in production mode.
-//
-// The cause was incomplete generic type skipping, so each of the assert
-// statements below would fail.
-//
-// VMOptions=
-// VMOptions=--enable_asserts
-
-main() {
-  var names = <int>[];
-
-  // Generic type test.
-  assert(names is List<int>);
-
-  // Negated generic type test.
-  assert(names is! List<String>);
-
-  // Generic type cast.
-  assert((names as List<num>).length == 0);
-
-  // Generic type test inside expression.
-  assert((names is List<int>));
-}
diff --git a/tests/language_2/assign/instance_method_test.dart b/tests/language_2/assign/instance_method_test.dart
deleted file mode 100644
index f7aea3fddbd..00000000000
--- a/tests/language_2/assign/instance_method_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class A {
-  A() {}
-  imethod() {
-    return 0;
-  }
-}
-
-main() {
-  dynamic a = new A();
-
-  // Illegal, can't change a member method.
-  Expect.throws(() {
-    a.imethod = () {
-      return 1;
-    };
-  });
-}
diff --git a/tests/language_2/assign/op_test.dart b/tests/language_2/assign/op_test.dart
deleted file mode 100644
index 0f265ffa6a5..00000000000
--- a/tests/language_2/assign/op_test.dart
+++ /dev/null
@@ -1,98 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing assign operators.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class AssignOpTest {
-  AssignOpTest() {}
-
-  static testMain() {
-    var b = 0;
-    b += 1;
-    Expect.equals(1, b);
-    b *= 5;
-    Expect.equals(5, b);
-    b -= 1;
-    Expect.equals(4, b);
-    b ~/= 2;
-    Expect.equals(2, b);
-
-    f = 0;
-    f += 1;
-    Expect.equals(1, f);
-    f *= 5;
-    Expect.equals(5, f);
-    f -= 1;
-    Expect.equals(4, f);
-    f ~/= 2;
-    Expect.equals(2, f);
-    f /= 4;
-    Expect.equals(.5, f);
-
-    AssignOpTest.f = 0;
-    AssignOpTest.f += 1;
-    Expect.equals(1, AssignOpTest.f);
-    AssignOpTest.f *= 5;
-    Expect.equals(5, AssignOpTest.f);
-    AssignOpTest.f -= 1;
-    Expect.equals(4, AssignOpTest.f);
-    AssignOpTest.f ~/= 2;
-    Expect.equals(2, AssignOpTest.f);
-    AssignOpTest.f /= 4;
-    Expect.equals(.5, f);
-
-    var o = new AssignOpTest();
-    o.instf = 0;
-    o.instf += 1;
-    Expect.equals(1, o.instf);
-    o.instf *= 5;
-    Expect.equals(5, o.instf);
-    o.instf -= 1;
-    Expect.equals(4, o.instf);
-    o.instf ~/= 2;
-    Expect.equals(2, o.instf);
-    o.instf /= 4;
-    Expect.equals(.5, o.instf);
-
-    var x = 0xFF;
-    x >>= 3;
-    Expect.equals(0x1F, x);
-    x <<= 3;
-    Expect.equals(0xF8, x);
-    x |= 0xF00;
-    Expect.equals(0xFF8, x);
-    x &= 0xF0;
-    Expect.equals(0xF0, x);
-    x ^= 0x11;
-    Expect.equals(0xE1, x);
-
-    var y = 100;
-    y += 1 << 3;
-    Expect.equals(108, y);
-    y *= 2 + 1;
-    Expect.equals(324, y);
-    y -= 3 - 2;
-    Expect.equals(323, y);
-    y += 3 * 4;
-    Expect.equals(335, y);
-
-    var a = [1, 2, 3];
-    var ix = 0;
-    a[ix] |= 12;
-    Expect.equals(13, a[ix]);
-  }
-
-  static var f;
-  var instf;
-}
-
-main() {
-  for (int i = 0; i < 20; i++) {
-    AssignOpTest.testMain();
-  }
-}
diff --git a/tests/language_2/assign/static_type_runtime_test.dart b/tests/language_2/assign/static_type_runtime_test.dart
deleted file mode 100644
index d916029abe6..00000000000
--- a/tests/language_2/assign/static_type_runtime_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// This test insures that statically initialized variables, fields, and
-// parameters report compile-time errors.
-
-
-
-class A {
-
-
-
-  A() {
-
-  }
-  method(
-      [
-
-      g = "String"]) {
-    return g;
-  }
-}
-
-main() {}
diff --git a/tests/language_2/assign/static_type_test.dart b/tests/language_2/assign/static_type_test.dart
deleted file mode 100644
index f3c949411df..00000000000
--- a/tests/language_2/assign/static_type_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test insures that statically initialized variables, fields, and
-// parameters report compile-time errors.
-
-int a = "String";
-//      ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-// [cfe] A value of type 'String' can't be assigned to a variable of type 'int'.
-
-class A {
-  static const int c = "String";
-  //                   ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  // [cfe] A value of type 'String' can't be assigned to a variable of type 'int'.
-  final int d = "String";
-  //            ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  // [cfe] A value of type 'String' can't be assigned to a variable of type 'int'.
-  int e = "String";
-  //      ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  // [cfe] A value of type 'String' can't be assigned to a variable of type 'int'.
-  A() {
-    int f = "String";
-    //      ^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-    // [cfe] A value of type 'String' can't be assigned to a variable of type 'int'.
-  }
-  method([int g = "String"]) {
-    //            ^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-    // [cfe] A value of type 'String' can't be assigned to a variable of type 'int'.
-    return g;
-  }
-}
-
-main() {}
diff --git a/tests/language_2/assign/to_type_runtime_test.dart b/tests/language_2/assign/to_type_runtime_test.dart
deleted file mode 100644
index ffafd1ba334..00000000000
--- a/tests/language_2/assign/to_type_runtime_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify that an attempt to assign to a class, enum, typedef, or type
-// parameter produces a compile error.
-
-class C<T> {
-  f() {
-
-  }
-}
-
-class D {}
-
-enum E { e0 }
-
-typedef void F();
-
-main() {
-  new C<D>().f();
-
-
-
-}
diff --git a/tests/language_2/assign/to_type_test.dart b/tests/language_2/assign/to_type_test.dart
deleted file mode 100644
index 2548b16933d..00000000000
--- a/tests/language_2/assign/to_type_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that an attempt to assign to a class, enum, typedef, or type
-// parameter produces a compile error.
-
-class C<T> {
-  f() {
-    T = null;
-//  ^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_TYPE
-// [cfe] Can't assign to a type literal.
-  }
-}
-
-class D {}
-
-enum E { e0 }
-
-typedef void F();
-
-main() {
-  new C<D>().f();
-  D = null;
-//^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_TYPE
-// [cfe] Can't assign to a type literal.
-  E = null;
-//^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_TYPE
-// [cfe] Can't assign to a type literal.
-  F = null;
-//^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_TYPE
-// [cfe] Can't assign to a type literal.
-}
diff --git a/tests/language_2/assign/top_method_test.dart b/tests/language_2/assign/top_method_test.dart
deleted file mode 100644
index 44abb8dd806..00000000000
--- a/tests/language_2/assign/top_method_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-method() {
-  return 0;
-}
-
-main() {
-  // Illegal, can't change a top level method
-  method = () {
-//^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FUNCTION
-// [cfe] Setter not found: 'method'.
-    return 1;
-  };
-}
diff --git a/tests/language_2/async/and_or_test.dart b/tests/language_2/async/and_or_test.dart
deleted file mode 100644
index 8a45868e4da..00000000000
--- a/tests/language_2/async/and_or_test.dart
+++ /dev/null
@@ -1,94 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// VMOptions=
-// VMOptions=--stress_write_barrier_elimination
-
-// @dart = 2.9
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) {
-  return x;
-}
-
-test1() async {
-  Expect.isFalse(await confuse(false) && await confuse(false));
-  Expect.isFalse(await confuse(false) && await confuse(true));
-  Expect.isFalse(await confuse(true) && await confuse(false));
-  Expect.isTrue(await confuse(true) && await confuse(true));
-
-  Expect.isFalse(await confuse(false) || await confuse(false));
-  Expect.isTrue(await confuse(false) || await confuse(true));
-  Expect.isTrue(await confuse(true) || await confuse(false));
-  Expect.isTrue(await confuse(true) || await confuse(true));
-}
-
-String trace;
-
-traceA(x) {
-  trace += "a";
-  return x;
-}
-
-traceB(x) {
-  trace += "b";
-  return x;
-}
-
-testEvaluation(Future<void> fn()) async {
-  trace = "";
-  await fn();
-}
-
-test2() async {
-  await testEvaluation(() async {
-    Expect.isFalse(
-        await confuse(traceA(false)) && await confuse(traceB(false)));
-    Expect.equals("a", trace);
-  });
-  await testEvaluation(() async {
-    Expect.isFalse(await confuse(traceA(false)) && await confuse(traceB(true)));
-    Expect.equals("a", trace);
-  });
-  await testEvaluation(() async {
-    Expect.isFalse(await confuse(traceA(true)) && await confuse(traceB(false)));
-    Expect.equals("ab", trace);
-  });
-  await testEvaluation(() async {
-    Expect.isTrue(await confuse(traceA(true)) && await confuse(traceB(true)));
-    Expect.equals("ab", trace);
-  });
-
-  await testEvaluation(() async {
-    Expect.isFalse(
-        await confuse(traceA(false)) || await confuse(traceB(false)));
-    Expect.equals("ab", trace);
-  });
-  await testEvaluation(() async {
-    Expect.isTrue(await confuse(traceA(false)) || await confuse(traceB(true)));
-    Expect.equals("ab", trace);
-  });
-  await testEvaluation(() async {
-    Expect.isTrue(await confuse(traceA(true)) || await confuse(traceB(false)));
-    Expect.equals("a", trace);
-  });
-  await testEvaluation(() async {
-    Expect.isTrue(await confuse(traceA(true)) || await confuse(traceB(true)));
-    Expect.equals("a", trace);
-  });
-}
-
-test() async {
-  await test1();
-  await test2();
-}
-
-main() {
-  asyncStart();
-  test().then((_) => asyncEnd());
-}
diff --git a/tests/language_2/async/async_test.dart b/tests/language_2/async/async_test.dart
deleted file mode 100644
index 27fcecf9684..00000000000
--- a/tests/language_2/async/async_test.dart
+++ /dev/null
@@ -1,142 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// VMOptions=
-// VMOptions=--stress_write_barrier_elimination
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-import 'dart:async';
-
-topLevelFunction() async {}
-
-Future<int> topLevelWithParameter(int a) async {
-  return 7 + a;
-}
-
-topLevelWithParameterWrongType(int a) async {
-  return 7 + a;
-}
-
-var what = 'async getter';
-Future<String> get topLevelGetter async {
-  return 'I want to be an ${what}';
-}
-
-class A {
-  static int staticVar = 1;
-
-  static staticMethod(int param) async => staticVar + param;
-  static get staticGetter async => staticVar + 3;
-
-  int _x;
-  A(this._x);
-
-  operator +(A other) async {
-    return new A(_x + other._x);
-  }
-
-  get value => _x;
-}
-
-class B {
-  final _y;
-  const B._internal(this._y);
-
-  B() : _y = null;
-}
-
-main() {
-  Future asyncReturn;
-
-  asyncReturn = topLevelFunction();
-  Expect.isTrue(asyncReturn is Future);
-
-  asyncReturn = topLevelWithParameter(4);
-  Expect.isTrue(asyncReturn is Future);
-  asyncStart();
-  asyncReturn.then((Object result) {
-    Expect.equals(result, 11);
-    asyncEnd();
-  });
-
-  asyncReturn = topLevelGetter;
-  Expect.isTrue(asyncReturn is Future);
-  asyncStart();
-  asyncReturn.then((Object result) {
-    Expect.stringEquals(result, 'I want to be an async getter');
-    asyncEnd();
-  });
-
-  asyncReturn = A.staticMethod(2);
-  Expect.isTrue(asyncReturn is Future);
-  asyncStart();
-  asyncReturn.then((Object result) {
-    Expect.equals(result, 3);
-    asyncEnd();
-  });
-
-  asyncReturn = A.staticGetter;
-  Expect.isTrue(asyncReturn is Future);
-  asyncStart();
-  asyncReturn.then((Object result) {
-    Expect.equals(result, 4);
-    asyncEnd();
-  });
-
-  A a = new A(13);
-
-  var b = new A(9);
-  asyncReturn = a + b;
-  Expect.isTrue(asyncReturn is Future);
-  asyncStart();
-  asyncReturn.then((Object result) {
-    Expect.equals((result as A).value, 22);
-    asyncEnd();
-  });
-
-  var foo = 17;
-  bar(int p1, p2) async {
-    var z = 8;
-    return p2 + z + foo;
-  }
-
-  asyncReturn = bar(1, 2);
-  Expect.isTrue(asyncReturn is Future);
-  asyncStart();
-  asyncReturn.then((Object result) {
-    Expect.equals(result, 27);
-    asyncEnd();
-  });
-
-  var moreNesting = (int shadowP1, String p2, num p3) {
-    var z = 3;
-    aa(int shadowP1) async {
-      return foo + z + p3 + shadowP1;
-    }
-
-    return aa(6);
-  };
-  asyncReturn = moreNesting(1, "ignore", 2);
-  Expect.isTrue(asyncReturn is Future);
-  asyncStart();
-  asyncReturn.then((Object result) {
-    Expect.equals(result, 28);
-    asyncEnd();
-  });
-
-  var checkAsync = (var someFunc) {
-    var toTest = someFunc();
-    Expect.isTrue(toTest is Future);
-    asyncStart();
-    toTest.then((int result) {
-      Expect.equals(result, 4);
-      asyncEnd();
-    });
-  };
-  checkAsync(() async => 4);
-}
diff --git a/tests/language_2/async/await_catch_regression_test.dart b/tests/language_2/async/await_catch_regression_test.dart
deleted file mode 100644
index 4fea20578b5..00000000000
--- a/tests/language_2/async/await_catch_regression_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-foo() async {
-  throw 42;
-}
-
-test() async {
-  var exception;
-  try {
-    await foo();
-  } catch (e) {
-    print(await (e));
-    await (exception = await e);
-  }
-  Expect.equals(42, exception);
-}
-
-main() {
-  asyncStart();
-  test().then((_) => asyncEnd());
-}
diff --git a/tests/language_2/async/await_foreign_test.dart b/tests/language_2/async/await_foreign_test.dart
deleted file mode 100644
index 92abe155618..00000000000
--- a/tests/language_2/async/await_foreign_test.dart
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-typedef Future<Null> Task();
-
-class ForeignFuture implements Future<Null> {
-  ForeignFuture(List<Task> tasks) {
-    tasks.forEach(_addTask);
-  }
-
-  Future<Null> _future;
-
-  void _addTask(Task task) {
-    _future = (_future == null) ? task() : _future.then((_) => task());
-  }
-
-  Future<S> then<S>(FutureOr<S> onValue(Null _), {Function onError}) {
-    assert(_future != null);
-    return _future.then((_) {
-      _future = null;
-      return onValue(null);
-    }, onError: (error, trace) {
-      _future = null;
-      if (onError != null) {
-        onError(error, trace);
-      }
-    });
-  }
-
-  Stream<Null> asStream() {
-    return new Stream.fromFuture(this);
-  }
-
-  Future<Null> catchError(onError, {bool test(Object error)}) {
-    print('Unimplemented catchError');
-    return null;
-  }
-
-  Future<Null> timeout(Duration timeLimit, {onTimeout()}) {
-    print('Unimplemented timeout');
-    return null;
-  }
-
-  Future<Null> whenComplete(action()) {
-    print('Unimplemented whenComplete');
-    return null;
-  }
-}
-
-var r1;
-
-Future<Null> hello() async {
-  r1 = 'hello';
-  throw new Exception('error');
-}
-
-Future<String> world() async {
-  try {
-    await new ForeignFuture([hello]);
-  } catch (e) {}
-  return 'world';
-}
-
-void main() {
-  asyncStart();
-  () async {
-    var r2 = await world();
-    Expect.equals('hello', r1);
-    Expect.equals('world', r2);
-    asyncEnd();
-  }();
-}
diff --git a/tests/language_2/async/await_syntax_test.dart b/tests/language_2/async/await_syntax_test.dart
deleted file mode 100644
index 687935b429a..00000000000
--- a/tests/language_2/async/await_syntax_test.dart
+++ /dev/null
@@ -1,303 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test async/await syntax.
-
-import 'dart:async' show Stream;
-
-var yield = 0;
-var await = 0;
-get st => new Stream.fromIterable([]);
-
-a01a() async => null; //                       //# a01a: ok
-a01b() async* => null; //                      //# a01b: syntax error
-a01c() sync* => null; //                       //# a01c: syntax error
-a01d() async => yield 5; //                    //# a01d: syntax error
-a02a() async {} //                             //# a02a: ok
-a03a() async* {} //                            //# a03a: ok
-a03b() async * {} //                           //# a03b: ok
-a04a() sync* {} //                             //# a04a: ok
-a04b() sync {} //                              //# a04b: syntax error
-a04c() sync * {} //                            //# a04c: ok
-a05a() async { await 0; } //                   //# a05a: ok
-a05b() async { //                              //# a05b: ok
-  await(a) {}; //                              //# a05b: continued
-  await(0); //                                 //# a05b: continued
-} //                                           //# a05b: continued
-a05c() { //                                    //# a05c: ok
-  await(a) {}; //                              //# a05c: continued
-  await(0); //                                 //# a05c: continued
-} //                                           //# a05c: continued
-a05d() async { //                              //# a05d: syntax error
-  await(a) {} //                               //# a05d: continued
-  await(0); //                                 //# a05d: continued
-} //                                           //# a05d: continued
-a05e() { //                                    //# a05e: ok
-  await(a) {} //                               //# a05e: continued
-  await(0); //                                 //# a05e: continued
-} //                                           //# a05e: continued
-a05f() async { //                              //# a05f: syntax error
-  var await = (a) {}; //                       //# a05f: continued
-  await(0); //                                 //# a05f: continued
-} //                                           //# a05f: continued
-a05g() async { //                              //# a05g: compile-time error
-    yield 5; //                                //# a05g: continued
-} //                                           //# a05g: continued
-a05h() async { //                              //# a05h: continued
-    yield* st; //                              //# a05h: compile-time error
-} //                                           //# a05h: continued
-a06a() async { await for (var o in st) {} } // //# a06a: ok
-a06b() sync* { await for (var o in st) {} } // //# a06b: compile-time error
-a07a() sync* { yield 0; } //                   //# a07a: ok
-a07b() sync { yield 0; } //                    //# a07b: syntax error
-a08a() sync* { yield* []; } //                 //# a08a: ok
-a08b() sync { yield 0; } //                    //# a08b: syntax error
-a09a() async* { yield 0; } //                  //# a09a: ok
-a10a() async* { yield* []; } //                //# a10a: compile-time error
-
-get sync sync {} //                            //# a11a: syntax error
-get sync sync* {} //                           //# a11b: ok
-get async async {} //                          //# a11c: ok
-get async async* {} //                         //# a11d: ok
-
-get sync {} //                                 //# a12a: ok
-get sync* {} //                                //# a12b: syntax error
-get async {} //                                //# a12c: ok
-get async* {} //                               //# a12d: syntax error
-get a12e sync* => null; //                     //# a12e: syntax error
-get a12f async* => null; //                    //# a12f: syntax error
-get a12g async => null; //                     //# a12g: ok
-
-int sync; //                                   //# a13a: ok
-int sync*; //                                  //# a13b: syntax error
-int async; //                                  //# a13c: ok
-int async*; //                                 //# a13d: syntax error
-
-var sync; //                                   //# a14a: ok
-var sync*; //                                  //# a14b: syntax error
-var async; //                                  //# a14c: ok
-var async*; //                                 //# a14d: syntax error
-
-sync() {} //                                   //# a15a: ok
-sync*() {} //                                  //# a15b: syntax error
-async() {} //                                  //# a15c: ok
-async*() {} //                                 //# a15d: syntax error
-
-abstract class B {
-  b00a() async; //  //# b00a: syntax error
-  b00b() async*; // //# b00b: syntax error
-  b00c() sync*; //  //# b00c: syntax error
-  b00d() sync; //   //# b00d: syntax error
-}
-
-class C extends B {
-  C();
-
-  factory C.e1() async { return null; } //  //# e1: compile-time error
-  factory C.e2() async* { return null; } // //# e2: compile-time error
-  factory C.e3() sync* { return null; } //  //# e3: compile-time error
-  factory C.e4() async = C; //              //# e4: syntax error
-  factory C.e5() async* = C; //             //# e5: syntax error
-  factory C.e6() sync* = C; //              //# e6: syntax error
-  C.e7() async {} //                        //# e7: compile-time error
-  C.e8() async* {} //                       //# e8: compile-time error
-  C.e9() sync* {} //                        //# e9: compile-time error
-
-  b00a() {} //  //# b00a: continued
-  b00b() {} //  //# b00b: continued
-  b00c() {} //  //# b00c: continued
-  b00d() {} //  //# b00d: continued
-
-  b01a() async => null; //                       //# b01a: ok
-  b01b() async* => null; //                      //# b01b: syntax error
-  b01c() sync* => null; //                       //# b01c: syntax error
-  b02a() async {} //                             //# b02a: ok
-  b03a() async* {} //                            //# b03a: ok
-  b04a() sync* {} //                             //# b04a: ok
-  b04b() sync {} //                              //# b04b: syntax error
-  b05a() async { await 0; } //                   //# b05a: ok
-  b06a() async { await for (var o in st) {} } // //# b06a: ok
-  b06b() async { await for ( ; ; ) {} } //       //# b06b: compile-time error
-  b07a() sync* { yield 0; } //                   //# b07a: ok
-  b08a() sync* { yield* []; } //                 //# b08a: ok
-  b09a() async* { yield 0; } //                  //# b09a: ok
-  b10a() async* { yield* []; } //                //# b10a: compile-time error
-  b10b() async { yield 0; } //                   //# b10b: compile-time error
-
-  get sync sync {} //                            //# b11a: syntax error
-  get sync sync* {} //                           //# b11b: ok
-  get async async {} //                          //# b11c: ok
-  get async async* {} //                         //# b11d: ok
-
-  get sync {} //                                 //# b12a: ok
-  get sync* {} //                                //# b12b: syntax error
-  get async {} //                                //# b12c: ok
-  get async* {} //                               //# b12d: syntax error
-  get b12e sync* => null; //                     //# b12e: syntax error
-  get b12f async* => null; //                    //# b12f: syntax error
-  get b12g async => null; //                     //# b12g: ok
-
-  int sync; //                                   //# b13a: ok
-  int sync*; //                                  //# b13b: syntax error
-  int async; //                                  //# b13c: ok
-  int async*; //                                 //# b13d: syntax error
-
-  var sync; //                                   //# b14a: ok
-  var sync*; //                                  //# b14b: syntax error
-  var async; //                                  //# b14c: ok
-  var async*; //                                 //# b14d: syntax error
-
-  sync() {} //                                   //# b15a: ok
-  sync*() {} //                                  //# b15b: syntax error
-  async() {} //                                  //# b15c: ok
-  async*() {} //                                 //# b15d: syntax error
-}
-
-method1() {
-  c01a() async => null; c01a(); //                       //# c01a: ok
-  c01b() async* => null; c01b(); //                      //# c01b: syntax error
-  c01c() sync* => null; c01c(); //                       //# c01c: syntax error
-  c02a() async {} c02a(); //                             //# c02a: ok
-  c03a() async* {} c03a(); //                            //# c03a: ok
-  c04a() sync* {} c04a(); //                             //# c04a: ok
-  c04b() sync {} c04b(); //                              //# c04b: syntax error
-  c05a() async { await 0; } c05a(); //                   //# c05a: ok
-  c06a() async { await for (var o in st) {} } c06a(); // //# c06a: ok
-  c07a() sync* { yield 0; } c07a(); //                   //# c07a: ok
-  c08a() sync* { yield* []; } c08a(); //                 //# c08a: ok
-  c09a() async* { yield 0; } c09a(); //                  //# c09a: ok
-  c10a() async* { yield* []; } c10a(); //                //# c10a: compile-time error
-  c11a() async { yield -5; } c11a(); //                  //# c11a: compile-time error
-  c11b() async { yield* st; } c11b(); //                 //# c11b: compile-time error
-}
-
-method2() {
-  var d01a = () async => null; d01a(); //                        //# d01a: ok
-  var d01b = () async* => null; d01b(); //                       //# d01b: syntax error
-  var d01c = () sync* => null; d01c(); //                        //# d01c: syntax error
-  var d02a = () async {}; d02a(); //                             //# d02a: ok
-  var d03a = () async* {}; d03a(); //                            //# d03a: ok
-  var d04a = () sync* {}; d04a(); //                             //# d04a: ok
-  var d04b = () sync {}; d04b(); //                              //# d04b: syntax error
-  var d05a = () async { await 0; }; d05a(); //                   //# d05a: ok
-  var d06a = () async { await for (var o in st) {} }; d06a(); // //# d06a: ok
-  var d07a = () sync* { yield 0; }; d07a(); //                   //# d07a: ok
-  var d08a = () sync* { yield* []; }; d08a(); //                 //# d08a: ok
-  var d08b = () sync* { yield*0+1; }; d08b(); //                 //# d08b: compile-time error
-  var d08c = () { yield*0+1; }; d08c(); //                       //# d08c: ok
-  var d09a = () async* { yield 0; }; d09a(); //                  //# d09a: ok
-  var d10a = () async* { yield* []; }; d10a(); //                //# d10a: compile-time error
-}
-
-void main() {
-  var a;
-  var c = new C();
-  c = new C.e1(); //# e1: continued
-  c = new C.e2(); //# e2: continued
-  c = new C.e3(); //# e3: continued
-  c = new C.e4(); //# e4: continued
-  c = new C.e5(); //# e5: continued
-  c = new C.e6(); //# e6: continued
-  c = new C.e7(); //# e7: continued
-  c = new C.e8(); //# e8: continued
-  c = new C.e9(); //# e9: continued
-
-  a01a(); //    //# a01a: continued
-  a01b(); //    //# a01b: continued
-  a01c(); //    //# a01c: continued
-  a01d(); //    //# a01d: continued
-  a02a(); //    //# a02a: continued
-  a03a(); //    //# a03a: continued
-  a03b(); //    //# a03b: continued
-  a04a(); //    //# a04a: continued
-  a04b(); //    //# a04b: continued
-  a04c(); //    //# a04c: continued
-  a05a(); //    //# a05a: continued
-  a05b(); //    //# a05b: continued
-  a05c(); //    //# a05c: continued
-  a05d(); //    //# a05d: continued
-  a05e(); //    //# a05e: continued
-  a05f(); //    //# a05f: continued
-  a05g(); //    //# a05g: continued
-  a05h(); //    //# a05h: continued
-  a06a(); //    //# a06a: continued
-  a06b(); //    //# a06b: continued
-  a07a(); //    //# a07a: continued
-  a07b(); //    //# a07b: continued
-  a08a(); //    //# a08a: continued
-  a08b(); //    //# a08b: continued
-  a09a(); //    //# a09a: continued
-  a10a(); //    //# a10a: continued
-  a = sync; //  //# a11a: continued
-  a = sync; //  //# a11b: continued
-  a = async; // //# a11c: continued
-  a = async; // //# a11d: continued
-  a = sync; //  //# a12a: continued
-  a = sync; //  //# a12b: continued
-  a = async; // //# a12c: continued
-  a = async; // //# a12d: continued
-  a = a12e; //  //# a12e: continued
-  a = a12f; //  //# a12f: continued
-  a = a12g; //  //# a12g: continued
-  a = sync; //  //# a13a: continued
-  a = sync; //  //# a13b: continued
-  a = async; // //# a13c: continued
-  a = async; // //# a13d: continued
-  a = sync; //  //# a14a: continued
-  a = sync; //  //# a14b: continued
-  a = async; // //# a14c: continued
-  a = async; // //# a14d: continued
-  sync(); //    //# a15a: continued
-  sync(); //    //# a15b: continued
-  async(); //   //# a15c: continued
-  async(); //   //# a15d: continued
-
-  c.b00a(); //  //# b00a: continued
-  c.b00b(); //  //# b00b: continued
-  c.b00c(); //  //# b00c: continued
-  c.b00d(); //  //# b00d: continued
-  c.b01a(); //  //# b01a: continued
-  c.b01b(); //  //# b01b: continued
-  c.b01c(); //  //# b01c: continued
-  c.b02a(); //  //# b02a: continued
-  c.b03a(); //  //# b03a: continued
-  c.b04a(); //  //# b04a: continued
-  c.b04b(); //  //# b04b: continued
-  c.b05a(); //  //# b05a: continued
-  c.b06a(); //  //# b06a: continued
-  c.b06b(); //  //# b06b: continued
-  c.b07a(); //  //# b07a: continued
-  c.b08a(); //  //# b08a: continued
-  c.b09a(); //  //# b09a: continued
-  c.b10a(); //  //# b10a: continued
-  c.b10b(); //  //# b10b: continued
-  a = c.sync; //  //# b11a: continued
-  a = c.sync; //  //# b11b: continued
-  a = c.async; // //# b11c: continued
-  a = c.async; // //# b11d: continued
-  a = c.sync; //  //# b12a: continued
-  a = c.sync; //  //# b12b: continued
-  a = c.async; // //# b12c: continued
-  a = c.async; // //# b12d: continued
-  a = c.b12e; //  //# b12e: continued
-  a = c.b12f; //  //# b12f: continued
-  a = c.b12g; //  //# b12g: continued
-  a = c.sync; //  //# b13a: continued
-  a = c.sync; //  //# b13b: continued
-  a = c.async; // //# b13c: continued
-  a = c.async; // //# b13d: continued
-  a = c.sync; //  //# b14a: continued
-  a = c.sync; //  //# b14b: continued
-  a = c.async; // //# b14c: continued
-  a = c.async; // //# b14d: continued
-  c.sync(); //    //# b15a: continued
-  c.sync(); //    //# b15b: continued
-  c.async(); //   //# b15c: continued
-  c.async(); //   //# b15d: continued
-
-  method1();
-  method2();
-}
diff --git a/tests/language_2/async/await_test.dart b/tests/language_2/async/await_test.dart
deleted file mode 100644
index c0e86417f00..00000000000
--- a/tests/language_2/async/await_test.dart
+++ /dev/null
@@ -1,2307 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=
-// VMOptions=--optimization-counter-threshold=20
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-import "dart:async";
-
-typedef dynamic DynamicToDynamic(dynamic d);
-
-main() {
-  asyncStart();
-  group("basic", () {
-    test("async w/o await", () {
-      f() async {
-        return id(42);
-      }
-
-      return expect42(f());
-    });
-
-    test("async starts synchronously", () {
-      // Calling an "async" function starts immediately.
-      var result = [];
-      f() async {
-        result.add(1);
-        return id(42);
-      }
-
-      ;
-      var future = f();
-      result.add(0);
-      return future.whenComplete(() {
-        expect(result, equals([1, 0]));
-      });
-    });
-
-    test("async throws", () {
-      f() async {
-        throw "err";
-        return id(42);
-      }
-
-      return throwsErr(f());
-    });
-
-    test("await future", () {
-      f() async {
-        var v = await new Future.value(42);
-        return v;
-      }
-
-      ;
-      return expect42(f());
-    });
-
-    test("await value", () {
-      f() async {
-        var v = await id(42);
-        return v;
-      }
-
-      ;
-      return expect42(f());
-    });
-
-    test("await null", () {
-      f() async {
-        var v = await null;
-        expect(v, equals(null));
-      }
-
-      ;
-      return f();
-    });
-
-    test("await await", () {
-      f() async {
-        return await await new Future.value(42);
-      }
-
-      return expect42(f());
-    });
-
-    test("await fake value future", () {
-      f() async {
-        return await new FakeValueFuture(42);
-      }
-
-      return expect42(f());
-    });
-
-    test("await fake error future", () {
-      f() async {
-        return await new FakeErrorFuture("err");
-      }
-
-      return throwsErr(f());
-    });
-
-    test("await value is delayed", () {
-      f() async {
-        bool x = false;
-        scheduleMicrotask(() {
-          x = true;
-        });
-        var y = await true;
-        expect(x, equals(y));
-      }
-
-      return f();
-    });
-
-    test("await throw", () {
-      f() async {
-        await (throw "err"); // Check grammar: Are parentheses necessary?
-        return id(42);
-      }
-
-      return throwsErr(f());
-    });
-
-    test("throw before await", () {
-      f() async {
-        var x = throw "err";
-        await x; // Check grammar: Are parentheses necessary?
-        return id(42);
-      }
-
-      return throwsErr(f());
-    });
-
-    if (assertStatementsEnabled) {
-      test("assert before await", () {
-        f(v) async {
-          assert(v == 87);
-          return await new Future.microtask(() => 42);
-        }
-
-        return f(42).then((_) {
-          fail("assert didn't throw");
-        }, onError: (e, s) {
-          expect(e is AssertionError, isTrue);
-        });
-      });
-
-      test("assert after await", () {
-        f(v) async {
-          var x = await new Future.microtask(() => 42);
-          assert(v == 87);
-          return x;
-        }
-
-        return f(42).then((_) {
-          fail("assert didn't throw");
-        }, onError: (e, s) {
-          expect(e is AssertionError, isTrue);
-        });
-      });
-    }
-
-    test("async await error", () {
-      f() async {
-        await new Future.error("err");
-        return id(42);
-      }
-
-      return throwsErr(f());
-    });
-
-    test("async flattens futures", () {
-      f() async {
-        return new Future.value(42); // Not awaited.
-      }
-
-      ;
-      return f().then((v) {
-        expect(v, equals(42)); // And not a Future with value 42.
-      });
-    });
-
-    test("async flattens futures, error", () {
-      f() async {
-        return new Future.error("err"); // Not awaited.
-      }
-
-      return throwsErr(f());
-    });
-
-    test("await for", () {
-      f(Stream<int> s) async {
-        int i = 0;
-        await for (int v in s) {
-          i += v;
-        }
-        return i;
-      }
-
-      return f(mkStream()).then((v) {
-        expect(v, equals(45)); // 0 + 1 + ... + 9
-      });
-    });
-
-    test("await for w/ await", () {
-      f(Stream<int> s) async {
-        int i = 0;
-        await for (int v in s) {
-          i += await new Future.value(v);
-        }
-        return i;
-      }
-
-      return f(mkStream()).then((v) {
-        expect(v, equals(45)); // 0 + 1 + ... + 9
-      });
-    });
-
-    test("await for empty", () {
-      f(Stream<int> s) async {
-        int v = 0;
-        await for (int i in s) {
-          v += i;
-        }
-        return v;
-      }
-
-      var s = (new StreamController<int>()..close()).stream;
-      return f(s).then((v) {
-        expect(v, equals(0));
-      });
-    });
-
-    if (assertStatementsEnabled) {
-      test("await for w/ await, asseert", () {
-        f(Stream<int> s) async {
-          int i = 0;
-          await for (int v in s) {
-            i += await new Future.microtask(() => v);
-            assert(v < 8);
-          }
-          return i;
-        }
-
-        return f(mkStream()).then((v) {
-          fail("assert didn't throw");
-        }, onError: (e, s) {
-          expect(e is AssertionError, isTrue);
-        });
-      });
-    }
-  });
-
-  group("for", () {
-    test("await in for-loop", () {
-      f() async {
-        int v = 0;
-        for (int i = 0; i < 10; i++) {
-          v += await new Future.value(42);
-        }
-        return v;
-      }
-
-      return f().then((v) {
-        expect(v, equals(10 * id(42)));
-      });
-    });
-
-    test("await in for-init", () {
-      f() async {
-        int v = 0;
-        for (int i = await new Future.value(42); i >= 0; i -= 10) {
-          v += 10;
-        }
-        return v;
-      }
-
-      return f().then((v) {
-        expect(v, equals(10 * 5));
-      });
-    });
-
-    test("await in for-test", () {
-      f() async {
-        int v = 0;
-        for (int i = 0; i < await new Future.value(42); i += 10) {
-          v += 10;
-        }
-        return v;
-      }
-
-      return f().then((v) {
-        expect(v, equals(10 * 5));
-      });
-    });
-
-    test("await in for-incr", () {
-      f() async {
-        int v = 0;
-        for (int i = 0; i < 100; i += await new Future.value(42)) {
-          v += 10;
-        }
-        return v;
-      }
-
-      return f().then((v) {
-        expect(v, equals(10 * 3));
-      });
-    });
-
-    test("await err in for-loop", () {
-      f() async {
-        int v = 0;
-        for (int i = 0; i < 10; i++) {
-          v += await new Future.error("err");
-        }
-        return v;
-      }
-
-      return throwsErr(f());
-    });
-
-    test("await err in for-init", () {
-      f() async {
-        int v = 0;
-        for (int i = await new Future.error("err"); i >= 0; i -= 10) {
-          v += 10;
-        }
-        return v;
-      }
-
-      return throwsErr(f());
-    });
-
-    test("await err in for-test", () {
-      f() async {
-        int v = 0;
-        for (int i = 0; i < await new Future.error("err"); i += 10) {
-          v += 10;
-        }
-        return v;
-      }
-
-      return throwsErr(f());
-    });
-
-    test("await err in for-incr", () {
-      f() async {
-        int v = 0;
-        for (int i = 0; i < 100; i += await new Future.error("err")) {
-          v += 10;
-        }
-        return v;
-      }
-
-      return throwsErr(f());
-    });
-
-    test("await in empty for-loop", () {
-      f() async {
-        int v = 0;
-        for (int i = 0; i > 0; i += 1) {
-          v += await new Future.value(42);
-        }
-        return v;
-      }
-
-      return f().then((v) {
-        expect(v, equals(0));
-      });
-    });
-
-    test("await in empty for-loop 2", () {
-      f() async {
-        int v = 0;
-        for (int i = 0; i > 0; i += await new Future.value(1)) {
-          v += 1;
-        }
-        return v;
-      }
-
-      return f().then((v) {
-        expect(v, equals(0));
-      });
-    });
-
-    test("break before await in for-loop", () {
-      f() async {
-        int v = 0;
-        for (int i = 0; i < 10; i += 1) {
-          if (i == 2) break;
-          v += await new Future.value(42);
-        }
-        return v;
-      }
-
-      return f().then((v) {
-        expect(v, equals(42 * 2));
-      });
-    });
-
-    test("break before await in for-loop 2", () {
-      f() async {
-        int v = 0;
-        for (int i = 0; i < 10; i += await new Future.value(1)) {
-          if (i == 2) break;
-          v += id(42);
-        }
-        return v;
-      }
-
-      return f().then((v) {
-        expect(v, equals(42 * 2));
-      });
-    });
-
-    test("continue before await", () {
-      f() async {
-        int v = 0;
-        for (int i = 0; i < 10; i += 1) {
-          if (i == 2) continue;
-          v += await new Future.value(42);
-        }
-        return v;
-      }
-
-      return f().then((v) {
-        expect(v, equals(42 * 9));
-      });
-    });
-
-    test("continue after await", () {
-      f() async {
-        int v = 0;
-        for (int i = 0; i < 10; i += 1) {
-          var j = await new Future.value(42);
-          if (i == 2) continue;
-          v += j;
-        }
-        return v;
-      }
-
-      return f().then((v) {
-        expect(v, equals(42 * 9));
-      });
-    });
-  });
-
-  group("while", () {
-    test("await in while-loop", () {
-      f() async {
-        int v = 0;
-        int i = 0;
-        while (i < 10) {
-          v += await new Future.value(42);
-          i++;
-        }
-        return v;
-      }
-
-      return f().then((v) {
-        expect(v, equals(10 * id(42)));
-      });
-    });
-
-    test("await in while-test", () {
-      f() async {
-        int v = 0;
-        int i = 0;
-        while (i < await new Future.value(42)) {
-          v += 10;
-          i += 10;
-        }
-        return v;
-      }
-
-      return f().then((v) {
-        expect(v, equals(10 * 5));
-      });
-    });
-
-    test("await err in loop", () {
-      f() async {
-        int v = 0;
-        int i = 0;
-        while (i < 10) {
-          v += await new Future.error("err");
-          i++;
-        }
-        return v;
-      }
-
-      return throwsErr(f());
-    });
-
-    test("await err in test", () {
-      f() async {
-        int v = 0;
-        int i = 0;
-        while (i < await new Future.error("err")) {
-          v += 10;
-          i += 10;
-        }
-        return v;
-      }
-
-      return throwsErr(f());
-    });
-
-    test("break before await", () {
-      f() async {
-        int v = 0;
-        int i = 0;
-        while (i < 10) {
-          if (i == 2) break;
-          v += await new Future.value(42);
-          i += 1;
-        }
-        return v;
-      }
-
-      return f().then((v) {
-        expect(v, equals(42 * 2));
-      });
-    });
-
-    test("break after await", () {
-      f() async {
-        int v = 0;
-        int i = 0;
-        while (i < 10) {
-          v += await new Future.value(42);
-          if (i == 2) break;
-          i += 1;
-        }
-        return v;
-      }
-
-      return f().then((v) {
-        expect(v, equals(42 * 3));
-      });
-    });
-
-    test("continue before await", () {
-      f() async {
-        int v = 0;
-        int i = 0;
-        while (i < 10) {
-          i += 1;
-          if (i == 2) continue;
-          v += await new Future.value(42);
-        }
-        return v;
-      }
-
-      return f().then((v) {
-        expect(v, equals(42 * 9));
-      });
-    });
-
-    test("continue after await", () {
-      f() async {
-        int v = 0;
-        int i = 0;
-        while (i < 10) {
-          i += 1;
-          int j = await new Future.value(42);
-          if (i == 2) continue;
-          v += j;
-        }
-        return v;
-      }
-
-      return f().then((v) {
-        expect(v, equals(42 * 9));
-      });
-    });
-  });
-
-  group("do-while", () {
-    test("await in loop", () {
-      f() async {
-        int v = 0;
-        int i = 0;
-        do {
-          v += await new Future.value(42);
-          i++;
-        } while (i < 10);
-        return v;
-      }
-
-      return f().then((v) {
-        expect(v, equals(10 * id(42)));
-      });
-    });
-
-    test("await in test", () {
-      f() async {
-        int v = 0;
-        int i = 0;
-        do {
-          v += 10;
-          i += 10;
-        } while (i < await new Future.value(42));
-        return v;
-      }
-
-      return f().then((v) {
-        expect(v, equals(10 * 5));
-      });
-    });
-
-    test("await err in loop", () {
-      f() async {
-        int v = 0;
-        int i = 0;
-        do {
-          v += await new Future.error("err");
-          i++;
-        } while (i < 10);
-        return v;
-      }
-
-      return f().then((v) {
-        fail("didn't throw");
-      }, onError: (e) {
-        expect(e, equals("err"));
-      });
-    });
-
-    test("await err in test", () {
-      f() async {
-        int v = 0;
-        int i = 0;
-        do {
-          v += 10;
-          i += 10;
-        } while (i < await new Future.error("err"));
-        return v;
-      }
-
-      return f().then((v) {
-        fail("didn't throw");
-      }, onError: (e) {
-        expect(e, equals("err"));
-      });
-    });
-
-    test("break before await", () {
-      f() async {
-        int v = 0;
-        int i = 0;
-        do {
-          if (i == 2) break;
-          v += await new Future.value(42);
-          i += 1;
-        } while (i < 10);
-        return v;
-      }
-
-      return f().then((v) {
-        expect(v, equals(42 * 2));
-      });
-    });
-
-    test("break after await", () {
-      f() async {
-        int v = 0;
-        int i = 0;
-        do {
-          v += await new Future.value(42);
-          if (i == 2) break;
-          i += 1;
-        } while (i < 10);
-        return v;
-      }
-
-      return f().then((v) {
-        expect(v, equals(42 * 3));
-      });
-    });
-
-    test("continue before await", () {
-      f() async {
-        int v = 0;
-        int i = 0;
-        do {
-          i += 1;
-          if (i == 2) continue;
-          v += await new Future.value(42);
-        } while (i < 10);
-        return v;
-      }
-
-      return f().then((v) {
-        expect(v, equals(42 * 9));
-      });
-    });
-
-    test("continue after await", () {
-      f() async {
-        int v = 0;
-        int i = 0;
-        do {
-          i += 1;
-          int j = await new Future.value(42);
-          if (i == 2) continue;
-          v += j;
-        } while (i < 10);
-        return v;
-      }
-
-      return f().then((v) {
-        expect(v, equals(42 * 9));
-      });
-    });
-  });
-
-  group("for-in", () {
-    test("await in for-in", () {
-      f() async {
-        var v = 0;
-        for (var fut in [1, 2, 3].map((v) => new Future.value(v))) {
-          v += await fut;
-        }
-        return v;
-      }
-
-      return f().then((v) {
-        expect(v, equals(6));
-      });
-    });
-
-    test("await in for-in iterable", () {
-      f() async {
-        var v = 0;
-        for (var i in await new Future.value([1, 2, 3])) {
-          v += i;
-        }
-        return v;
-      }
-
-      return f().then((v) {
-        expect(v, equals(6));
-      });
-    });
-
-    test("await err in for-in", () {
-      f() async {
-        var v = 0;
-        for (var fut in [1, 2, 3].map(
-            (v) => (v != 1) ? new Future.value(v) : new Future.error("err"))) {
-          v += await fut;
-        }
-        return v;
-      }
-
-      return f().then((v) {
-        fail("didn't throw");
-      }, onError: (e) {
-        expect(e, equals("err"));
-      });
-    });
-
-    test("await err in for-in iterable", () {
-      f() async {
-        var v = 0;
-        for (var i in await new Future.error("err")) {
-          v += i;
-        }
-        return v;
-      }
-
-      return f().then((v) {
-        fail("didn't throw");
-      }, onError: (e) {
-        expect(e, equals("err"));
-      });
-    });
-
-    test("break before await in for-in", () {
-      f() async {
-        var v = 0;
-        for (var fut in [1, 2, 3].map((v) => new Future.value(v))) {
-          if (v == 3) break;
-          v += await fut;
-        }
-        return v;
-      }
-
-      return f().then((v) {
-        expect(v, equals(3));
-      });
-    });
-  });
-
-  group("try-catch", () {
-    test("try-no-catch", () {
-      f() async {
-        try {
-          return await id(42);
-        } catch (e) {
-          return 37;
-        }
-      }
-
-      return expect42(f());
-    });
-
-    test("await in body", () {
-      f() async {
-        try {
-          await new Future.error(42);
-        } catch (e) {
-          return e;
-        }
-      }
-
-      return expect42(f());
-    });
-
-    test("throw before await in body", () {
-      int i = id(0);
-      f() async {
-        try {
-          if (i >= 0) throw id(42);
-          return await new Future.value(10);
-        } catch (e) {
-          return e;
-        }
-      }
-
-      return expect42(f());
-    });
-
-    test("try-catch await in catch", () {
-      f() async {
-        try {
-          throw id(42);
-        } catch (e) {
-          return await new Future.value(e);
-        }
-      }
-
-      return expect42(f());
-    });
-
-    test("try-catch await error in catch", () {
-      f() async {
-        try {
-          throw id(42);
-        } catch (e) {
-          await new Future.error("err");
-        }
-      }
-
-      return f().then((v) {
-        fail("didn't throw");
-      }, onError: (e) {
-        expect(e, equals("err"));
-      });
-    });
-
-    test("try-catch-rethrow", () {
-      f() async {
-        try {
-          await new Future.error("err");
-        } catch (e) {
-          if (e == id(42)) return;
-          rethrow;
-        }
-      }
-
-      return f().then((v) {
-        fail("didn't throw");
-      }, onError: (e) {
-        expect(e, equals("err"));
-      });
-    });
-  });
-
-  group("try-finally", () {
-    test("await in body", () {
-      f() async {
-        try {
-          return await new Future.value(42);
-        } finally {
-          // Don't do anything.
-        }
-      }
-
-      return expect42(f());
-    });
-
-    test("await in finally", () {
-      var x = 0;
-      f() async {
-        try {
-          return id(42);
-        } finally {
-          x = await new Future.value(37);
-        }
-      }
-
-      return f().then((v) {
-        expect(v, equals(42));
-        expect(x, equals(37));
-      });
-    });
-
-    test("await err in body", () {
-      f() async {
-        try {
-          return await new Future.error("err");
-        } finally {
-          // Don't do anything.
-        }
-      }
-
-      return f().then((v) {
-        fail("didn't throw");
-      }, onError: (e) {
-        expect(e, equals("err"));
-      });
-    });
-
-    test("await err in finally", () {
-      f() async {
-        try {
-          return id(42);
-        } finally {
-          await new Future.error("err");
-        }
-      }
-
-      return f().then((v) {
-        fail("didn't throw");
-      }, onError: (e) {
-        expect(e, equals("err"));
-      });
-    });
-
-    test("await err in both", () {
-      f() async {
-        try {
-          await new Future.error("not err");
-        } finally {
-          await new Future.error("err");
-        }
-      }
-
-      return f().then((v) {
-        fail("didn't throw");
-      }, onError: (e) {
-        expect(e, equals("err"));
-      });
-    });
-
-    test("await err in body, override in finally", () {
-      f() async {
-        try {
-          return await new Future.error("err");
-        } finally {
-          return id(42);
-        }
-      }
-
-      return expect42(f());
-    });
-
-    test("await in body, override in finally", () {
-      f() async {
-        label:
-        try {
-          return await new Future.value(37);
-        } finally {
-          break label;
-        }
-        return id(42);
-      }
-
-      return expect42(f());
-    });
-
-    test("await, override in finally", () {
-      var x = 0;
-      f() async {
-        label:
-        try {
-          return 87;
-        } finally {
-          x = await new Future.value(37);
-          break label;
-        }
-        return id(42);
-      }
-
-      return f().then((v) {
-        expect(v, equals(42));
-        expect(x, equals(37));
-      });
-    });
-
-    test("throw in body, await, override in finally 3", () {
-      var x = 0;
-      f() async {
-        label:
-        try {
-          throw "err";
-        } finally {
-          x = await new Future.value(37);
-          break label;
-        }
-        return id(42);
-      }
-
-      return f().then((v) {
-        expect(v, equals(42));
-        expect(x, equals(37));
-      });
-    });
-
-    test("await err in body, override in finally 2", () {
-      f() async {
-        label:
-        try {
-          return await new Future.error("err");
-        } finally {
-          break label;
-        }
-        return id(42);
-      }
-
-      return expect42(f());
-    });
-
-    test("await in body, no-exit in finally", () {
-      f() async {
-        for (int i = 0; i < 10; i++) {
-          try {
-            return await i;
-          } finally {
-            continue;
-          }
-        }
-        return id(42);
-      }
-
-      return expect42(f());
-    });
-
-    test("no-exit after await in finally", () {
-      f() async {
-        int i = 0;
-        for (; i < 10; i++) {
-          try {
-            break;
-          } finally {
-            await new Future.value(42);
-            continue;
-          }
-        }
-        return id(i);
-      }
-
-      return f().then((v) {
-        expect(v, equals(10));
-      });
-    });
-
-    test("exit after continue, await in finally", () {
-      f() async {
-        int i = 0;
-        for (; i < 10; i++) {
-          try {
-            continue;
-          } finally {
-            await new Future.value(42);
-            break;
-          }
-        }
-        return id(i);
-      }
-
-      return f().then((v) {
-        expect(v, equals(0));
-      });
-    });
-
-    test("no-exit before await in finally 2", () {
-      f() async {
-        for (int i = 0; i < 10; i++) {
-          try {
-            return i;
-          } finally {
-            if (i >= 0) continue;
-            await new Future.value(42);
-          }
-        }
-        return id(42);
-      }
-
-      return expect42(f());
-    });
-
-    test("no-exit after await in finally", () {
-      f() async {
-        for (int i = 0; i < 10; i++) {
-          try {
-            return i;
-          } finally {
-            await new Future.value(42);
-            continue;
-          }
-        }
-        return id(42);
-      }
-
-      return expect42(f());
-    });
-
-    test("nested finallies", () {
-      var x = 0;
-      f() async {
-        try {
-          try {
-            return 42;
-          } finally {
-            x = await new Future.value(37);
-          }
-        } finally {
-          x += await new Future.value(37);
-        }
-      }
-
-      return f().then((v) {
-        expect(v, equals(42));
-        expect(x, equals(74));
-      });
-    });
-
-    test("nested finallies 2", () {
-      var x = 0;
-      f() async {
-        label:
-        try {
-          try {
-            break label;
-          } finally {
-            x = await new Future.value(37);
-          }
-        } finally {
-          x += await new Future.value(37);
-        }
-        return 42;
-      }
-
-      return f().then((v) {
-        expect(v, equals(42));
-        expect(x, equals(74));
-      });
-    });
-
-    test("nested finallies 3", () {
-      var x = 0;
-      f() async {
-        label:
-        try {
-          try {
-            break label;
-          } finally {
-            return await new Future.value(42);
-          }
-        } finally {
-          break label;
-        }
-        return 42;
-      }
-
-      return expect42(f());
-    });
-
-    test("nested finallies, throw", () {
-      var x = 0;
-      f() async {
-        try {
-          try {
-            throw "err";
-          } finally {
-            x = await new Future.value(37);
-          }
-        } finally {
-          x += await new Future.value(37);
-        }
-      }
-
-      return f().then((v) {
-        fail("didn't throw");
-      }, onError: (e) {
-        expect(e, equals("err"));
-        expect(x, equals(2 * 37));
-      });
-    });
-  });
-
-  group("try-catch-finally", () {
-    test("await in body", () {
-      f() async {
-        try {
-          return await new Future.value(42);
-        } catch (e) {
-          throw null;
-        } finally {
-          if (id(42) == id(10)) return 10;
-        }
-      }
-
-      return expect42(f());
-    });
-
-    test("await in catch, not hit", () {
-      f() async {
-        try {
-          return id(42);
-        } catch (e) {
-          await new Future.error("err");
-        } finally {
-          if (id(42) == id(10)) return 10;
-        }
-      }
-
-      return expect42(f());
-    });
-
-    test("await in catch, hit", () {
-      f() async {
-        try {
-          return throw id(42);
-        } catch (e) {
-          return await new Future.value(e);
-        } finally {
-          if (id(42) == id(10)) return 10;
-        }
-      }
-
-      return expect42(f());
-    });
-
-    test("await in finally", () {
-      var x = 0;
-      f() async {
-        try {
-          return id(42);
-        } catch (e) {
-          throw null;
-        } finally {
-          x = await new Future.value(37);
-          if (id(42) == id(10)) return 10;
-        }
-      }
-
-      return f().then((v) {
-        expect(v, equals(42));
-        expect(x, equals(37));
-      });
-    });
-  });
-
-  group("switch", () {
-    test("await in expression", () {
-      f(v) async {
-        switch (await new Future.value(v)) {
-          case 1:
-            return 1;
-          case 2:
-            return 42;
-          default:
-            return 3;
-        }
-        return null;
-      }
-
-      return expect42(f(2));
-    });
-
-    test("await err in expression", () {
-      f(v) async {
-        switch (await new Future.error("err")) {
-          case 1:
-            return 1;
-          case 2:
-            return 42;
-          default:
-            return 3;
-        }
-        return null;
-      }
-
-      return throwsErr(f(2));
-    });
-
-    test("await in case", () {
-      f(v) async {
-        switch (v) {
-          case 1:
-            return 1;
-          case 2:
-            return await new Future.value(42);
-          default:
-            return 3;
-        }
-        return null;
-      }
-
-      return expect42(f(2));
-    });
-
-    test("await err in case", () {
-      f(v) async {
-        switch (v) {
-          case 1:
-            return 1;
-          case 2:
-            return await new Future.error("err");
-          default:
-            return 3;
-        }
-        return null;
-      }
-
-      return throwsErr(f(2));
-    });
-    // TODO(jmesserly): restore this when we fix
-    // https://github.com/dart-lang/dev_compiler/issues/263
-    /*test("continue before await in case", () {
-      f(v) async {
-        switch (v) {
-          label:
-          case 1: return 42;
-          case 2:
-            if (v <= 2) continue label;
-            return await new Future.value(10);
-          default: return 3;
-        }
-        return null;
-      }
-      return expect42(f(2));
-    });
-
-    test("continue after await in case", () {
-      f(v) async {
-        switch (v) {
-          label:
-          case 1: return 42;
-          case 2:
-            await new Future.value(10);
-            continue label;
-          default: return 3;
-        }
-        return null;
-      }
-      return expect42(f(2));
-    });*/
-  });
-
-  group("if", () {
-    test("await in test", () {
-      f(v) async {
-        if (await new Future.value(v)) {
-          return 42;
-        } else {
-          return 37;
-        }
-      }
-
-      return expect42(f(true));
-    });
-
-    test("await err in test", () {
-      f(v) async {
-        if (await new Future.error("err")) {
-          return 42;
-        } else {
-          return 37;
-        }
-      }
-
-      return throwsErr(f(true));
-    });
-
-    test("await in then", () {
-      f(v) async {
-        if (v) {
-          return await new Future.value(42);
-        }
-        return 37;
-      }
-
-      return expect42(f(true));
-    });
-
-    test("await err in then", () {
-      f(v) async {
-        if (v) {
-          return await new Future.error("err");
-        }
-        return 37;
-      }
-
-      return throwsErr(f(true));
-    });
-
-    test("await in then with else", () {
-      f(v) async {
-        if (v) {
-          return await new Future.value(42);
-        } else {
-          return 87;
-        }
-        return 37;
-      }
-
-      return expect42(f(true));
-    });
-
-    test("await err in then with else", () {
-      f(v) async {
-        if (v) {
-          return await new Future.error("err");
-        } else {
-          return 87;
-        }
-        return 37;
-      }
-
-      return throwsErr(f(true));
-    });
-
-    test("await in else", () {
-      f(v) async {
-        if (v) {
-          return 37;
-        } else {
-          return await new Future.value(42);
-        }
-        return 87;
-      }
-
-      return expect42(f(false));
-    });
-
-    test("await err in else", () {
-      f(v) async {
-        if (v) {
-          return 37;
-        } else {
-          return await new Future.error("err");
-        }
-        return 87;
-      }
-
-      return throwsErr(f(false));
-    });
-
-    test("await in else-if test", () {
-      f(v) async {
-        if (v) {
-          return 37;
-        } else if (!await new Future.value(v)) {
-          return 42;
-        } else {
-          return 37;
-        }
-        return 87;
-      }
-
-      return expect42(f(false));
-    });
-
-    test("await in else-if then", () {
-      f(v) async {
-        if (v) {
-          return 37;
-        } else if (!v) {
-          return await new Future.value(42);
-        } else {
-          return 37;
-        }
-        return 87;
-      }
-
-      return expect42(f(false));
-    });
-  });
-
-  group("conditional operator", () {
-    test("await in test", () {
-      f(v) async {
-        return (await new Future.value(v)) ? 42 : 37;
-      }
-
-      return expect42(f(true));
-    });
-
-    test("await err in test", () {
-      f(v) async {
-        return (await new Future.error("err")) ? 42 : 37;
-      }
-
-      return throwsErr(f(true));
-    });
-
-    test("await in then", () {
-      f(v) async {
-        return v ? (await new Future.value(42)) : 37;
-      }
-
-      return expect42(f(true));
-    });
-
-    test("await err in then", () {
-      f(v) async {
-        return v ? (await new Future.error("err")) : 37;
-      }
-
-      return throwsErr(f(true));
-    });
-
-    test("await in else", () {
-      f(v) async {
-        return v ? 37 : (await new Future.value(42));
-      }
-
-      return expect42(f(false));
-    });
-
-    test("await err in else", () {
-      f(v) async {
-        return v ? 37 : (await new Future.error("err"));
-      }
-
-      return throwsErr(f(false));
-    });
-  });
-
-  group("async declarations", () {
-    var f42 = new Future.value(42);
-
-    // Top-level declarations or local declarations in top-level functions.
-    test("topMethod", () {
-      return expect42(topMethod(f42));
-    });
-
-    test("topArrowMethod", () {
-      return expect42(topArrowMethod(f42));
-    });
-
-    test("topGetter", () {
-      return expect42(topGetter);
-    });
-
-    test("topArrowGetter", () {
-      return expect42(topArrowGetter);
-    });
-
-    test("topLocal", () {
-      return expect42(topLocal(f42));
-    });
-
-    test("topArrowLocal", () {
-      return expect42(topArrowLocal(f42));
-    });
-
-    test("topExpression", () {
-      return expect42(topExpression(f42));
-    });
-
-    test("topArrowExpression", () {
-      return expect42(topArrowExpression(f42));
-    });
-
-    test("topVarExpression", () {
-      return expect42(topVarExpression(f42));
-    });
-
-    test("topVarArrowExpression", () {
-      return expect42(topVarArrowExpression(f42));
-    });
-
-    // Static declarations or local declarations in static functions.
-    test("staticMethod", () {
-      return expect42(Async.staticMethod(f42));
-    });
-
-    test("staticArrowMethod", () {
-      return expect42(Async.staticArrowMethod(f42));
-    });
-
-    test("staticGetter", () {
-      return expect42(Async.staticGetter);
-    });
-
-    test("staticArrowGetter", () {
-      return expect42(Async.staticArrowGetter);
-    });
-
-    test("staticLocal", () {
-      return expect42(Async.staticLocal(f42));
-    });
-
-    test("staticArrowLocal", () {
-      return expect42(Async.staticArrowLocal(f42));
-    });
-
-    test("staticExpression", () {
-      return expect42(Async.staticExpression(f42));
-    });
-
-    test("staticArrowExpression", () {
-      return expect42(Async.staticArrowExpression(f42));
-    });
-
-    test("staticVarExpression", () {
-      return expect42(Async.staticVarExpression(f42));
-    });
-
-    test("staticVarArrowExpression", () {
-      return expect42(Async.staticVarArrowExpression(f42));
-    });
-
-    // Instance declarations or local declarations in instance functions.
-    var async = new Async();
-
-    test("instanceMethod", () {
-      return expect42(async.instanceMethod(f42));
-    });
-
-    test("instanceArrowMethod", () {
-      return expect42(async.instanceArrowMethod(f42));
-    });
-
-    test("instanceGetter", () {
-      return expect42(async.instanceGetter);
-    });
-
-    test("instanceArrowGetter", () {
-      return expect42(async.instanceArrowGetter);
-    });
-
-    test("instanceLocal", () {
-      return expect42(async.instanceLocal(f42));
-    });
-
-    test("instanceArrowLocal", () {
-      return expect42(async.instanceArrowLocal(f42));
-    });
-
-    test("instanceExpression", () {
-      return expect42(async.instanceExpression(f42));
-    });
-
-    test("instanceArrowExpression", () {
-      return expect42(async.instanceArrowExpression(f42));
-    });
-
-    test("instanceVarExpression", () {
-      return expect42(async.instanceVarExpression(f42));
-    });
-
-    test("instanceVarArrowExpression", () {
-      return expect42(async.instanceVarArrowExpression(f42));
-    });
-
-    // Local functions in constructor initializer list.
-    test("initializerExpression", () {
-      var async = new Async.initializer(f42);
-      return expect42(async.initValue);
-    });
-
-    test("initializerArrowExpression", () {
-      var async = new Async.initializerArrow(f42);
-      return expect42(async.initValue);
-    });
-
-    test("async in async", () {
-      return expect42(asyncInAsync(f42));
-    });
-
-    test("sync in async", () {
-      return expect42(syncInAsync(f42));
-    });
-
-    test("async in sync", () {
-      return expect42(asyncInSync(f42));
-    });
-
-    test("Identical and equals", () {
-      expect(async.instanceMethod, equals(async.instanceMethod));
-      expect(Async.staticMethod, same(Async.staticMethod));
-      expect(topMethod, same(topMethod));
-    });
-  });
-
-  group("await expression", () {
-    const c42 = 42;
-    final v42 = 42;
-
-    test("local variable", () {
-      var l42 = 42;
-      f() async {
-        return await l42;
-      }
-
-      return expect42(f());
-    });
-
-    test("parameter", () {
-      f(p) async {
-        return await p;
-      }
-
-      return expect42(f(42));
-    });
-
-    test("final local variable", () {
-      f() async {
-        return await v42;
-      }
-
-      return expect42(f());
-    });
-
-    test("const local variable", () {
-      f() async {
-        return await c42;
-      }
-
-      return expect42(f());
-    });
-
-    test("unary prefix operator", () {
-      f() async {
-        return -await -42;
-      }
-
-      return expect42(f());
-    });
-
-    test("suffix operator", () {
-      f() async {
-        var v = [42];
-        return await v[0];
-      }
-
-      return expect42(f());
-    });
-
-    test("unary postfix operator", () {
-      f() async {
-        var x = 42;
-        return await x++;
-      }
-
-      return expect42(f());
-    });
-
-    test("suffix operator + increment", () {
-      f() async {
-        var v = [42];
-        return await v[0]++;
-      }
-
-      return expect42(f());
-    });
-
-    test("suffix operator + increment 2", () {
-      f() async {
-        var v = [42];
-        return await v[await 0]++;
-      }
-
-      return expect42(f());
-    });
-
-    test("unary pre-increment operator", () {
-      f() async {
-        var x = 41;
-        return await ++x;
-      }
-
-      return expect42(f());
-    });
-
-    test("suffix operator + pre-increment", () {
-      f() async {
-        var v = [41];
-        return await ++v[0];
-      }
-
-      return expect42(f());
-    });
-
-    test("assignment operator", () {
-      f() async {
-        var x = 37;
-        return await (x = 42);
-      }
-
-      return expect42(f());
-    });
-
-    test("assignment-op operator", () {
-      f() async {
-        var x = 37;
-        return await (x += 5);
-      }
-
-      return expect42(f());
-    });
-
-    test("binary operator", () {
-      f() async {
-        return await (10 + 11) + await (10 + 11);
-      }
-
-      return expect42(f());
-    });
-
-    test("ternary operator", () {
-      f(v) async {
-        return await ((v == 10) ? new Future.value(42) : 37);
-      }
-
-      return expect42(f(10));
-    });
-
-    test("top-level function call", () {
-      f() async {
-        return await topMethod(42);
-      }
-
-      return expect42(f());
-    });
-
-    test("static function call", () {
-      f() async {
-        return await Async.staticMethod(42);
-      }
-
-      return expect42(f());
-    });
-
-    test("instance function call", () {
-      f() async {
-        var a = new Async();
-        return await a.instanceMethod(42);
-      }
-
-      return expect42(f());
-    });
-
-    test("top-level function call w/ await", () {
-      f() async {
-        return await topMethod(await 42);
-      }
-
-      return expect42(f());
-    });
-
-    test("static function call w/ await", () {
-      f() async {
-        return await Async.staticMethod(await 42);
-      }
-
-      return expect42(f());
-    });
-
-    test("instance function call w/ await", () {
-      f() async {
-        var a = new Async();
-        return await a.instanceMethod(await 42);
-      }
-
-      return expect42(f());
-    });
-
-    test("top-level getter call", () {
-      f() async {
-        return await topGetter;
-      }
-
-      return expect42(f());
-    });
-
-    test("static getter call", () {
-      f() async {
-        return await Async.staticGetter;
-      }
-
-      return expect42(f());
-    });
-
-    test("top-level getter call", () {
-      f() async {
-        var a = new Async();
-        return await a.instanceGetter;
-      }
-
-      return expect42(f());
-    });
-
-    if (!assertStatementsEnabled) return;
-
-    test("inside assert, true", () { //                      //# 03: ok
-      f() async { //                                         //# 03: continued
-        assert(await new Future.microtask(() => true)); //   //# 03: continued
-        return 42; //                                        //# 03: continued
-      } //                                                   //# 03: continued
-      return expect42(f()); //                               //# 03: continued
-    }); //                                                   //# 03: continued
-
-    test("inside assert, false", () { //                     //# 03: continued
-      f() async { //                                         //# 03: continued
-        assert(await new Future.microtask(() => false)); //  //# 03: continued
-        return 42; //                                        //# 03: continued
-      } //                                                   //# 03: continued
-      return f().then((_) { //                               //# 03: continued
-        fail("assert didn't throw"); //                      //# 03: continued
-      }, onError: (e, s) { //                                //# 03: continued
-        expect(e is AssertionError, isTrue); //              //# 03: continued
-      }); //                                                 //# 03: continued
-    }); //                                                   //# 03: continued
-
-    test("inside assert, function -> false", () { //         //# 03: continued
-      f() async { //                                         //# 03: continued
-        assert(await new Future.microtask(() => false)); //  //# 03: continued
-        return 42; //                                        //# 03: continued
-      } //                                                   //# 03: continued
-      return f().then((_) { //                               //# 03: continued
-        fail("assert didn't throw"); //                      //# 03: continued
-      }, onError: (e, s) { //                                //# 03: continued
-        expect(e is AssertionError, isTrue); //              //# 03: continued
-      }); //                                                 //# 03: continued
-    }); //                                                   //# 03: continued
-  });
-
-  group("syntax", () {
-    test("async as variable", () {
-      // Valid identifiers outside of async function.
-      var async = 42;
-      expect(async, equals(42));
-    });
-
-    test("await as variable", () { //                        //# 02: ok
-      // Valid identifiers outside of async function. //     //# 02: continued
-      var await = 42; //                                     //# 02: continued
-      expect(await, equals(42)); //                          //# 02: continued
-    }); //                                                   //# 02: continued
-
-    test("yield as variable", () {
-      // Valid identifiers outside of async function.
-      var yield = 42;
-      expect(yield, equals(42));
-    });
-  });
-  asyncEnd();
-}
-
-// Mock test framework sufficient to run tests.
-
-String _currentName = "";
-
-test(name, action()) {
-  var oldName = _currentName;
-  _currentName = [oldName, name].join(" ");
-  runZoned(() {
-    asyncTest(() => new Future.sync(action));
-  }, zoneValues: {#testName: _currentName});
-  _currentName = oldName;
-}
-
-group(name, entries()) {
-  var oldName = _currentName;
-  _currentName = [oldName, name].join(" ");
-  entries();
-  _currentName = oldName;
-}
-
-expect(value, expectation) {
-  var name = Zone.current[#testName];
-  if (expectation is bool) {
-    // Just for better error message.
-    (expectation ? Expect.isTrue : Expect.isFalse)(value, name);
-    return;
-  }
-  if (expectation is List) {
-    Expect.listEquals(expectation, value, name);
-    return;
-  }
-  if (expectation is Function(Object, String)) {
-    expectation(value, name);
-    return;
-  }
-  Expect.equals(expectation, value, name);
-}
-
-equals(x) => x;
-final isTrue = true;
-same(v) => (Object o, String name) => Expect.identical(v, o, name);
-fail(message) {
-  var name = Zone.current[#testName];
-  Expect.fail("$name: $message");
-}
-
-// End mock.
-
-// Attempt to obfuscates value to avoid too much constant folding.
-id(v) {
-  try {
-    if (v != null) throw v;
-  } catch (e) {
-    return e;
-  }
-  return null;
-}
-
-// Create a stream for testing "async for-in".
-Stream<int> mkStream() {
-  StreamController<int> c;
-  int i = 0;
-  next() {
-    c.add(i++);
-    if (i == 10) {
-      c.close();
-    } else {
-      scheduleMicrotask(next);
-    }
-  }
-
-  c = new StreamController(onListen: () {
-    scheduleMicrotask(next);
-  });
-  return c.stream;
-}
-
-// Check that future contains the error "err".
-Future throwsErr(Future future) {
-  return future.then((v) {
-    fail("didn't throw");
-  }, onError: (e) {
-    expect(e, equals("err"));
-  });
-}
-
-// Check that future contains the value 42.
-Future expect42(Future future) {
-  return future.then((v) {
-    expect(v, equals(42));
-  });
-}
-
-// Various async declarations.
-
-Future topMethod(f) async {
-  return await f;
-}
-
-Future topArrowMethod(f) async => await f;
-
-Future get topGetter async {
-  return await new Future.value(42);
-}
-
-Future get topArrowGetter async => await new Future.value(42);
-
-Future topLocal(f) {
-  local() async {
-    return await f;
-  }
-
-  return local();
-}
-
-Future topArrowLocal(f) {
-  local() async => await f;
-  return local();
-}
-
-Future topExpression(f) {
-  return () async {
-    return await f;
-  }();
-}
-
-Future topArrowExpression(f) {
-  return (() async => await f)();
-}
-
-DynamicToDynamic topVarExpression = (f) async {
-  return await f;
-};
-
-var topVarArrowExpression = (f) async => await f;
-
-class Async {
-  var initValue;
-  Async();
-
-  Async.initializer(f)
-      : initValue = (() async {
-          return await f;
-        }());
-
-  Async.initializerArrow(f) : initValue = ((() async => await f)());
-
-  /* static */
-  static Future staticMethod(f) async {
-    return await f;
-  }
-
-  static Future staticArrowMethod(f) async => await f;
-
-  static Future get staticGetter async {
-    return await new Future.value(42);
-  }
-
-  static Future get staticArrowGetter async => await new Future.value(42);
-
-  static Future staticLocal(f) {
-    local() async {
-      return await f;
-    }
-
-    return local();
-  }
-
-  static Future staticArrowLocal(f) {
-    local() async => await f;
-    return local();
-  }
-
-  static Future staticExpression(f) {
-    return () async {
-      return await f;
-    }();
-  }
-
-  static Future staticArrowExpression(f) {
-    return (() async => await f)();
-  }
-
-  static DynamicToDynamic staticVarExpression = (f) async {
-    return await f;
-  };
-
-  static var staticVarArrowExpression = (f) async => await f;
-
-  /* instance */
-  Future instanceMethod(f) async {
-    return await f;
-  }
-
-  Future instanceArrowMethod(f) async => await f;
-
-  Future get instanceGetter async {
-    return await new Future.value(42);
-  }
-
-  Future get instanceArrowGetter async => await new Future.value(42);
-
-  Future instanceLocal(f) {
-    local() async {
-      return await f;
-    }
-
-    return local();
-  }
-
-  Future instanceArrowLocal(f) {
-    local() async => await f;
-    return local();
-  }
-
-  Future instanceExpression(f) {
-    return () async {
-      return await f;
-    }();
-  }
-
-  Future instanceArrowExpression(f) {
-    return (() async => await f)();
-  }
-
-  DynamicToDynamic instanceVarExpression = (f) async {
-    return await f;
-  };
-
-  var instanceVarArrowExpression = (f) async => await f;
-}
-
-Future asyncInAsync(f) async {
-  inner(f) async {
-    return await f;
-  }
-
-  return await inner(f);
-}
-
-Future asyncInSync(f) {
-  inner(f) async {
-    return await f;
-  }
-
-  return inner(f);
-}
-
-Future syncInAsync(f) async {
-  inner(f) {
-    return f;
-  }
-
-  return await inner(f);
-}
-
-/**
- * A non-standard implementation of Future with a value.
- */
-class FakeValueFuture implements Future {
-  final _value;
-  FakeValueFuture(this._value);
-  Future<S> then<S>(callback(value), {Function onError}) {
-    return new Future<S>.microtask(() => callback(_value));
-  }
-
-  Future whenComplete(callback()) {
-    return new Future.microtask(() {
-      callback();
-    });
-  }
-
-  Future catchError(Function onError, {bool test(error)}) => this;
-  Stream asStream() => (new StreamController()
-        ..add(_value)
-        ..close())
-      .stream;
-  Future timeout(Duration duration, {onTimeout()}) => this;
-}
-
-typedef OnErrorCallback2 = dynamic Function(Object, StackTrace);
-typedef OnErrorCallback1 = dynamic Function(Object);
-
-/**
- * A non-standard implementation of Future with an error.
- */
-class FakeErrorFuture implements Future {
-  final _error;
-  FakeErrorFuture(this._error);
-  Future<S> then<S>(callback(value), {Function onError}) {
-    if (onError != null) {
-      if (onError is OnErrorCallback2) {
-        return new Future<S>.microtask(() => onError(_error, StackTrace.empty));
-      } else if (onError is OnErrorCallback1) {
-        return new Future<S>.microtask(() => onError(_error));
-      } else {
-        throw new ArgumentError.value(
-            onError,
-            "onError",
-            "Error handler must accept one Object or one Object and a StackTrace"
-                " as arguments, and return a valid result");
-      }
-    }
-    return new Future<S>.error(_error);
-  }
-
-  Future whenComplete(callback()) {
-    return new Future.microtask(() {
-      callback();
-    }).then((_) => this);
-  }
-
-  Future catchError(Function onError, {bool test(error)}) {
-    return new Future.microtask(() {
-      if (test != null && !test(_error)) return this;
-      if (onError is OnErrorCallback2) {
-        return onError(_error, null);
-      } else if (onError is OnErrorCallback1) {
-        return onError(_error);
-      } else {
-        throw new ArgumentError.value(
-          onError,
-          "onError",
-          "Error handler must accept one Object or one Object and a StackTrace"
-          " as arguments, and return a valid result");
-      }
-    });
-  }
-
-  Stream asStream() => (new StreamController()
-        ..addError(_error)
-        ..close())
-      .stream;
-  Future timeout(Duration duration, {onTimeout()}) => this;
-}
diff --git a/tests/language_2/async/await_user_defined_future_soundness_test.dart b/tests/language_2/async/await_user_defined_future_soundness_test.dart
deleted file mode 100644
index 269cd10dafb..00000000000
--- a/tests/language_2/async/await_user_defined_future_soundness_test.dart
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verifies that a user-defined Future cannot provide a value of incorrect
-// type by casting 'onValue' callback.
-// Regression test for https://github.com/dart-lang/sdk/issues/49345.
-
-import 'dart:async';
-
-import "package:expect/expect.dart";
-
-List<String> executionTrace = <String>[];
-
-Future<void> foo(Future<String> f) async {
-  executionTrace.add('Checkpoint 1');
-  final String result = await f;
-  executionTrace.add('Checkpoint 3');
-  print(result.runtimeType);
-}
-
-// Immediately calls onValue callback with an ill-typed argument.
-class CustomFuture1 implements Future<String> {
-  Future<R> then<R>(FutureOr<R> Function(String) onValue, {Function onError}) {
-    executionTrace.add('Checkpoint 2');
-    final result = (onValue as FutureOr<R> Function(dynamic))(10);
-    executionTrace.add('Checkpoint 4');
-    return Future.value(result);
-  }
-
-  @override
-  dynamic noSuchMethod(i) => throw UnimplementedError();
-}
-
-// Schedules microtask to call onValue callback with an ill-typed argument.
-class CustomFuture2<S, T> implements Future<T> {
-  final Completer done = Completer();
-  Future<R> then<R>(FutureOr<R> Function(T) onValue, {Function onError}) {
-    scheduleMicrotask(() {
-      Expect.throws(() {
-        executionTrace.add('Checkpoint 2');
-        (onValue as FutureOr<R> Function(dynamic))(10);
-        executionTrace.add('Checkpoint 4');
-      });
-      done.complete();
-    });
-    return Future<R>.value();
-  }
-
-  @override
-  dynamic noSuchMethod(i) => throw UnimplementedError();
-}
-
-void main() async {
-  bool seenError = false;
-  runZoned(() {
-    foo(CustomFuture1());
-  }, onError: (e, st) {
-    seenError = true;
-  });
-  Expect.listEquals(<String>['Checkpoint 1', 'Checkpoint 2'], executionTrace);
-  Expect.isTrue(seenError);
-
-  executionTrace.clear();
-  final customFuture2 = CustomFuture2<int, String>();
-  foo(customFuture2);
-  await customFuture2.done.future;
-  Expect.listEquals(<String>['Checkpoint 1', 'Checkpoint 2'], executionTrace);
-}
diff --git a/tests/language_2/async/backwards_compatibility_1_test.dart b/tests/language_2/async/backwards_compatibility_1_test.dart
deleted file mode 100644
index b29fa7ec509..00000000000
--- a/tests/language_2/async/backwards_compatibility_1_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import 'helper_lib.dart' as async;
-
-class A {
-  async.async get x => null;
-}
-
-class B {
-  int get async => null;
-}
-
-async.async topLevel() => null;
-
-main() {
-  var a = new A();
-  var b = a.x;
-  var c = topLevel();
-  var d = new B();
-  var e = d.async;
-}
diff --git a/tests/language_2/async/backwards_compatibility_2_test.dart b/tests/language_2/async/backwards_compatibility_2_test.dart
deleted file mode 100644
index c295d6d3d7a..00000000000
--- a/tests/language_2/async/backwards_compatibility_2_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-int get async {
-  return 1;
-}
-
-class A {
-  async() => null;
-}
-
-main() {
-  var a = async;
-  var b = new A();
-  var c = b.async();
-}
diff --git a/tests/language_2/async/break_in_finally_test.dart b/tests/language_2/async/break_in_finally_test.dart
deleted file mode 100644
index 72232f5c2df..00000000000
--- a/tests/language_2/async/break_in_finally_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-then43() async {
-  label:
-  try {
-    return await 42;
-  } finally {
-    break label;
-  }
-  return await 43;
-}
-
-then42() async {
-  label:
-  try {
-    return await 42;
-  } finally {}
-  return await 43;
-}
-
-now43() {
-  label:
-  try {
-    return 42;
-  } finally {
-    break label;
-  }
-  return 43;
-}
-
-now42() {
-  label:
-  try {
-    return 42;
-  } finally {}
-  return 43;
-}
-
-test() async {
-  Expect.equals(42, await then42());
-  Expect.equals(43, await then43());
-  Expect.equals(42, now42());
-  Expect.equals(43, now43());
-}
-
-main() {
-  asyncStart();
-  test().then((_) => asyncEnd());
-}
diff --git a/tests/language_2/async/call_test.dart b/tests/language_2/async/call_test.dart
deleted file mode 100644
index 9234b11b7a2..00000000000
--- a/tests/language_2/async/call_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-var result = "";
-
-foo() {
-  result += "foo";
-}
-
-bar() async {
-  result += "bar";
-  await null;
-  result += "bar2";
-}
-
-main() {
-  asyncStart();
-  () async {
-    var f = new Future(foo);
-    var b = bar();
-    Expect.equals("bar", result);
-    scheduleMicrotask(() => result += "micro");
-    await b;
-    await f;
-
-    // Validates that bar is scheduled as a microtask, before foo.
-    Expect.equals("barbar2microfoo", result);
-    asyncEnd();
-  }();
-}
diff --git a/tests/language_2/async/cascade_test.dart b/tests/language_2/async/cascade_test.dart
deleted file mode 100644
index 6f8d9df9961..00000000000
--- a/tests/language_2/async/cascade_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-
-// Note, this is a regression test for:
-// https://github.com/dart-lang/sdk/issues/29252
-class Foo {
-  Future _x;
-  int z;
-  List list = [];
-
-  Future foo() async {
-    _x ??= new Future(() async {
-      z = await new Future.value(42);
-      list = list.toList()..add(z);
-    });
-    await _x;
-    return list[0];
-  }
-}
-
-main() async {
-  var f = new Foo();
-  var result = await f.foo();
-  Expect.equals(42, result);
-}
diff --git a/tests/language_2/async/congruence_local_runtime_test.dart b/tests/language_2/async/congruence_local_runtime_test.dart
deleted file mode 100644
index dfecf905d6b..00000000000
--- a/tests/language_2/async/congruence_local_runtime_test.dart
+++ /dev/null
@@ -1,125 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// This test verifies that for a local async function, the following three
-// types are all appropriately matched:
-// - The static return type
-// - The return type of reified runtime type of a tearoff of the function or
-//   method
-// - The reified type of the future returned by the function or method
-//
-// Specific attention is paid to the following conditions:
-// - The static return type is determined by type inference
-// - The static return type is `dynamic`
-// - The function or method immediately returns a value or future with a
-//   different type (possibly using `=>` syntax)
-
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-
-class A {}
-
-class B extends A {}
-
-class B2 extends A {}
-
-Future quick() async {}
-
-Future<B> futureB() => new Future<B>.value(new B());
-
-void checkDynamic(dynamic tearoff) {
-  Expect.isTrue(tearoff is dynamic Function());
-  Expect.isFalse(tearoff is Future<dynamic> Function());
-  dynamic f = tearoff();
-  Expect.isTrue(f is Future<dynamic>);
-  Expect.isFalse(f is Future<A>);
-}
-
-void checkFutureObject(dynamic tearoff) {
-  Expect.isTrue(tearoff is Future<Object> Function());
-  Expect.isFalse(tearoff is Future<A> Function());
-  dynamic f = tearoff();
-  Expect.isTrue(f is Future<Object>);
-  Expect.isFalse(f is Future<A>);
-}
-
-void checkFutureA(dynamic tearoff) {
-  Expect.isTrue(tearoff is Future<A> Function());
-  Expect.isFalse(tearoff is Future<B> Function());
-  dynamic f = tearoff();
-  Expect.isTrue(f is Future<A>);
-  Expect.isFalse(f is Future<B>);
-}
-
-main() {
-  f_inferred_futureObject() async {
-    await quick();
-    if (false) {
-      return 0;
-    } else {
-      return new A();
-    }
-  }
-
-  f_inferred_A() async {
-    await quick();
-    if (false) {
-      return new A();
-    } else {
-      return new B();
-    }
-  }
-
-  dynamic f_dynamic() async {
-    await quick();
-    return new B();
-  }
-
-  Future<A> f_A() async {
-    await quick();
-    return new B();
-  }
-
-  Future<A> f_immediateReturn_B() async {
-    return new B();
-  }
-
-  Future<A> f_immediateReturn_FutureB() async {
-    return futureB();
-  }
-
-  Future<A> f_expressionSyntax_B() async => new B();
-
-  Future<A> f_expressionSyntax_FutureB() async => futureB();
-
-  // Not executed
-  void checkStaticTypes() {
-    // Check that f_inferred_futureObject's static return type is
-    // `Future<Object>`, by verifying that its return value can be assigned to
-    // `Future<int>` but not `int`.
-    Future<int> v1 = f_inferred_futureObject();
-
-
-    // Check that f_inferred_A's static return type is `Future<A>`, by verifying
-    // that its return value can be assigned to `Future<B2>` but not
-    // `Future<int>`.
-    Future<B2> v3 = f_inferred_A();
-
-  }
-
-  checkFutureObject(f_inferred_futureObject);
-  checkFutureA(f_inferred_A);
-  checkDynamic(f_dynamic);
-  checkFutureA(f_A);
-  checkFutureA(f_immediateReturn_B);
-  checkFutureA(f_immediateReturn_FutureB);
-  checkFutureA(f_expressionSyntax_B);
-  checkFutureA(f_expressionSyntax_FutureB);
-}
diff --git a/tests/language_2/async/congruence_local_test.dart b/tests/language_2/async/congruence_local_test.dart
deleted file mode 100644
index 1ae9dfaf7a3..00000000000
--- a/tests/language_2/async/congruence_local_test.dart
+++ /dev/null
@@ -1,130 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test verifies that for a local async function, the following three
-// types are all appropriately matched:
-// - The static return type
-// - The return type of reified runtime type of a tearoff of the function or
-//   method
-// - The reified type of the future returned by the function or method
-//
-// Specific attention is paid to the following conditions:
-// - The static return type is determined by type inference
-// - The static return type is `dynamic`
-// - The function or method immediately returns a value or future with a
-//   different type (possibly using `=>` syntax)
-
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-
-class A {}
-
-class B extends A {}
-
-class B2 extends A {}
-
-Future quick() async {}
-
-Future<B> futureB() => new Future<B>.value(new B());
-
-void checkDynamic(dynamic tearoff) {
-  Expect.isTrue(tearoff is dynamic Function());
-  Expect.isFalse(tearoff is Future<dynamic> Function());
-  dynamic f = tearoff();
-  Expect.isTrue(f is Future<dynamic>);
-  Expect.isFalse(f is Future<A>);
-}
-
-void checkFutureObject(dynamic tearoff) {
-  Expect.isTrue(tearoff is Future<Object> Function());
-  Expect.isFalse(tearoff is Future<A> Function());
-  dynamic f = tearoff();
-  Expect.isTrue(f is Future<Object>);
-  Expect.isFalse(f is Future<A>);
-}
-
-void checkFutureA(dynamic tearoff) {
-  Expect.isTrue(tearoff is Future<A> Function());
-  Expect.isFalse(tearoff is Future<B> Function());
-  dynamic f = tearoff();
-  Expect.isTrue(f is Future<A>);
-  Expect.isFalse(f is Future<B>);
-}
-
-main() {
-  f_inferred_futureObject() async {
-    await quick();
-    if (false) {
-      return 0;
-    } else {
-      return new A();
-    }
-  }
-
-  f_inferred_A() async {
-    await quick();
-    if (false) {
-      return new A();
-    } else {
-      return new B();
-    }
-  }
-
-  dynamic f_dynamic() async {
-    await quick();
-    return new B();
-  }
-
-  Future<A> f_A() async {
-    await quick();
-    return new B();
-  }
-
-  Future<A> f_immediateReturn_B() async {
-    return new B();
-  }
-
-  Future<A> f_immediateReturn_FutureB() async {
-    return futureB();
-  }
-
-  Future<A> f_expressionSyntax_B() async => new B();
-
-  Future<A> f_expressionSyntax_FutureB() async => futureB();
-
-  // Not executed
-  void checkStaticTypes() {
-    // Check that f_inferred_futureObject's static return type is
-    // `Future<Object>`, by verifying that its return value can be assigned to
-    // `Future<int>` but not `int`.
-    Future<int> v1 = f_inferred_futureObject();
-    int v2 = f_inferred_futureObject();
-    //       ^^^^^^^^^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-    //       ^
-    // [cfe] A value of type 'Future<Object>' can't be assigned to a variable of type 'int'.
-
-    // Check that f_inferred_A's static return type is `Future<A>`, by verifying
-    // that its return value can be assigned to `Future<B2>` but not
-    // `Future<int>`.
-    Future<B2> v3 = f_inferred_A();
-    Future<int> v4 = f_inferred_A();
-    //               ^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-    //               ^
-    // [cfe] A value of type 'Future<A>' can't be assigned to a variable of type 'Future<int>'.
-  }
-
-  checkFutureObject(f_inferred_futureObject);
-  checkFutureA(f_inferred_A);
-  checkDynamic(f_dynamic);
-  checkFutureA(f_A);
-  checkFutureA(f_immediateReturn_B);
-  checkFutureA(f_immediateReturn_FutureB);
-  checkFutureA(f_expressionSyntax_B);
-  checkFutureA(f_expressionSyntax_FutureB);
-}
diff --git a/tests/language_2/async/congruence_method_runtime_test.dart b/tests/language_2/async/congruence_method_runtime_test.dart
deleted file mode 100644
index 48ff41a5ff7..00000000000
--- a/tests/language_2/async/congruence_method_runtime_test.dart
+++ /dev/null
@@ -1,118 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// This test verifies that for an async method, the following three
-// types are all appropriately matched:
-// - The static return type
-// - The return type of reified runtime type of a tearoff of the function or
-//   method
-// - The reified type of the future returned by the function or method
-//
-// Specific attention is paid to the following conditions:
-// - The static return type is determined by type inference
-// - The static return type is `dynamic`
-// - The function or method immediately returns a value or future with a
-//   different type (possibly using `=>` syntax)
-
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-
-class A {}
-
-class B extends A {}
-
-class B2 extends A {}
-
-Future quick() async {}
-
-Future<B> futureB() => new Future<B>.value(new B());
-
-abstract class I {
-  dynamic f_inferred_dynamic();
-  Future<A> f_inferred_A();
-}
-
-class C implements I {
-  f_inferred_dynamic() async {
-    await quick();
-    return new B();
-  }
-
-  f_inferred_A() async {
-    await quick();
-    return new B();
-  }
-
-  dynamic f_dynamic() async {
-    await quick();
-    return new B();
-  }
-
-  Future<A> f_A() async {
-    await quick();
-    return new B();
-  }
-
-  Future<A> f_immediateReturn_B() async {
-    return new B();
-  }
-
-  Future<A> f_immediateReturn_FutureB() async {
-    return futureB();
-  }
-
-  Future<A> f_expressionSyntax_B() async => new B();
-
-  Future<A> f_expressionSyntax_FutureB() async => futureB();
-}
-
-// Not executed
-void checkStaticTypes(C c) {
-  // Check that f_inferred_dynamic's static return type is `dynamic`, by
-  // verifying that no error occurs if we try to call `foo` on its return value.
-  c.f_inferred_dynamic().foo();
-
-  // Check that f_inferred_A's static return type is `Future<A>`, by verifying
-  // that its return value can be assigned to `Future<B2>` but not
-  // `Future<int>`.
-  Future<B2> v1 = c.f_inferred_A();
-
-}
-
-void checkDynamic(dynamic tearoff) {
-  Expect.isTrue(tearoff is dynamic Function());
-  Expect.isFalse(tearoff is Future<dynamic> Function());
-  dynamic f = tearoff();
-  Expect.isTrue(f is Future<dynamic>);
-  Expect.isFalse(f is Future<A>);
-}
-
-void checkFutureA(dynamic tearoff) {
-  Expect.isTrue(tearoff is Future<A> Function());
-  Expect.isFalse(tearoff is Future<B> Function());
-  dynamic f = tearoff();
-  Expect.isTrue(f is Future<A>);
-  Expect.isFalse(f is Future<B>);
-}
-
-void test(C c) {
-  checkDynamic(c.f_inferred_dynamic);
-  checkFutureA(c.f_inferred_A);
-  checkDynamic(c.f_dynamic);
-  checkFutureA(c.f_A);
-  checkFutureA(c.f_immediateReturn_B);
-  checkFutureA(c.f_immediateReturn_FutureB);
-  checkFutureA(c.f_expressionSyntax_B);
-  checkFutureA(c.f_expressionSyntax_FutureB);
-}
-
-main() {
-  test(new C());
-}
diff --git a/tests/language_2/async/congruence_method_test.dart b/tests/language_2/async/congruence_method_test.dart
deleted file mode 100644
index 689b1cee37e..00000000000
--- a/tests/language_2/async/congruence_method_test.dart
+++ /dev/null
@@ -1,119 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test verifies that for an async method, the following three
-// types are all appropriately matched:
-// - The static return type
-// - The return type of reified runtime type of a tearoff of the function or
-//   method
-// - The reified type of the future returned by the function or method
-//
-// Specific attention is paid to the following conditions:
-// - The static return type is determined by type inference
-// - The static return type is `dynamic`
-// - The function or method immediately returns a value or future with a
-//   different type (possibly using `=>` syntax)
-
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-
-class A {}
-
-class B extends A {}
-
-class B2 extends A {}
-
-Future quick() async {}
-
-Future<B> futureB() => new Future<B>.value(new B());
-
-abstract class I {
-  dynamic f_inferred_dynamic();
-  Future<A> f_inferred_A();
-}
-
-class C implements I {
-  f_inferred_dynamic() async {
-    await quick();
-    return new B();
-  }
-
-  f_inferred_A() async {
-    await quick();
-    return new B();
-  }
-
-  dynamic f_dynamic() async {
-    await quick();
-    return new B();
-  }
-
-  Future<A> f_A() async {
-    await quick();
-    return new B();
-  }
-
-  Future<A> f_immediateReturn_B() async {
-    return new B();
-  }
-
-  Future<A> f_immediateReturn_FutureB() async {
-    return futureB();
-  }
-
-  Future<A> f_expressionSyntax_B() async => new B();
-
-  Future<A> f_expressionSyntax_FutureB() async => futureB();
-}
-
-// Not executed
-void checkStaticTypes(C c) {
-  // Check that f_inferred_dynamic's static return type is `dynamic`, by
-  // verifying that no error occurs if we try to call `foo` on its return value.
-  c.f_inferred_dynamic().foo();
-
-  // Check that f_inferred_A's static return type is `Future<A>`, by verifying
-  // that its return value can be assigned to `Future<B2>` but not
-  // `Future<int>`.
-  Future<B2> v1 = c.f_inferred_A();
-  Future<int> v2 = c.f_inferred_A();
-  //               ^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //                 ^
-  // [cfe] A value of type 'Future<A>' can't be assigned to a variable of type 'Future<int>'.
-}
-
-void checkDynamic(dynamic tearoff) {
-  Expect.isTrue(tearoff is dynamic Function());
-  Expect.isFalse(tearoff is Future<dynamic> Function());
-  dynamic f = tearoff();
-  Expect.isTrue(f is Future<dynamic>);
-  Expect.isFalse(f is Future<A>);
-}
-
-void checkFutureA(dynamic tearoff) {
-  Expect.isTrue(tearoff is Future<A> Function());
-  Expect.isFalse(tearoff is Future<B> Function());
-  dynamic f = tearoff();
-  Expect.isTrue(f is Future<A>);
-  Expect.isFalse(f is Future<B>);
-}
-
-void test(C c) {
-  checkDynamic(c.f_inferred_dynamic);
-  checkFutureA(c.f_inferred_A);
-  checkDynamic(c.f_dynamic);
-  checkFutureA(c.f_A);
-  checkFutureA(c.f_immediateReturn_B);
-  checkFutureA(c.f_immediateReturn_FutureB);
-  checkFutureA(c.f_expressionSyntax_B);
-  checkFutureA(c.f_expressionSyntax_FutureB);
-}
-
-main() {
-  test(new C());
-}
diff --git a/tests/language_2/async/congruence_top_level_test.dart b/tests/language_2/async/congruence_top_level_test.dart
deleted file mode 100644
index 85a44a6e648..00000000000
--- a/tests/language_2/async/congruence_top_level_test.dart
+++ /dev/null
@@ -1,90 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test verifies that for a top level async function, the following three
-// types are all appropriately matched:
-// - The static return type
-// - The return type of reified runtime type of a tearoff of the function or
-//   method
-// - The reified type of the future returned by the function or method
-//
-// Specific attention is paid to the following conditions:
-// - The static return type is determined by type inference
-// - The static return type is `dynamic`
-// - The function or method immediately returns a value or future with a
-//   different type (possibly using `=>` syntax)
-
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-
-class A {}
-
-class B extends A {}
-
-Future quick() async {}
-
-Future<B> futureB() => new Future<B>.value(new B());
-
-f_inferred() async {
-  await quick();
-  return new B();
-}
-
-dynamic f_dynamic() async {
-  await quick();
-  return new B();
-}
-
-Future<A> f_A() async {
-  await quick();
-  return new B();
-}
-
-Future<A> f_immediateReturn_B() async {
-  return new B();
-}
-
-Future<A> f_immediateReturn_FutureB() async {
-  return futureB();
-}
-
-Future<A> f_expressionSyntax_B() async => new B();
-
-Future<A> f_expressionSyntax_FutureB() async => futureB();
-
-// Not executed
-void checkStaticTypes() {
-  // Check that f_inferred's static return type is `dynamic`, by verifying that
-  // no error occurs if we try to call `foo` on its return value.
-  f_inferred().foo();
-}
-
-void checkDynamic(dynamic tearoff) {
-  Expect.isTrue(tearoff is dynamic Function());
-  Expect.isFalse(tearoff is Future<dynamic> Function());
-  dynamic f = tearoff();
-  Expect.isTrue(f is Future<dynamic>);
-  Expect.isFalse(f is Future<A>);
-}
-
-void checkFutureA(dynamic tearoff) {
-  Expect.isTrue(tearoff is Future<A> Function());
-  Expect.isFalse(tearoff is Future<B> Function());
-  dynamic f = tearoff();
-  Expect.isTrue(f is Future<A>);
-  Expect.isFalse(f is Future<B>);
-}
-
-main() {
-  checkDynamic(f_inferred);
-  checkDynamic(f_dynamic);
-  checkFutureA(f_A);
-  checkFutureA(f_immediateReturn_B);
-  checkFutureA(f_immediateReturn_FutureB);
-  checkFutureA(f_expressionSyntax_B);
-  checkFutureA(f_expressionSyntax_FutureB);
-}
diff --git a/tests/language_2/async/congruence_unnamed_runtime_test.dart b/tests/language_2/async/congruence_unnamed_runtime_test.dart
deleted file mode 100644
index 5ba4c18a875..00000000000
--- a/tests/language_2/async/congruence_unnamed_runtime_test.dart
+++ /dev/null
@@ -1,145 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// This test verifies that for an unnamed async closure, the following three
-// types are all appropriately matched:
-// - The static return type
-// - The return type of reified runtime type of a tearoff of the function or
-//   method
-// - The reified type of the future returned by the function or method
-//
-// Specific attention is paid to the following conditions:
-// - The static return type is determined by type inference
-// - The static return type is `dynamic`
-// - The function or method immediately returns a value or future with a
-//   different type (possibly using `=>` syntax)
-
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-
-class A {}
-
-class B extends A {}
-
-class B2 extends A {}
-
-Future quick() async {}
-
-Future<A> futureA() => new Future<A>.value(new A());
-
-Future<B> futureB() => new Future<B>.value(new B());
-
-void checkFutureObject(dynamic tearoff) {
-  Expect.isTrue(tearoff is Future<Object> Function());
-  Expect.isFalse(tearoff is Future<A> Function());
-  dynamic f = tearoff();
-  Expect.isTrue(f is Future<Object>);
-  Expect.isFalse(f is Future<A>);
-}
-
-void checkFutureDynamic(dynamic tearoff) {
-  Expect.isTrue(tearoff is Future<dynamic> Function());
-  Expect.isFalse(tearoff is Future<A> Function());
-  dynamic f = tearoff();
-  Expect.isTrue(f is Future<dynamic>);
-  Expect.isFalse(f is Future<A>);
-}
-
-void checkFutureA(dynamic tearoff) {
-  Expect.isTrue(tearoff is Future<A> Function());
-  Expect.isFalse(tearoff is Future<B> Function());
-  dynamic f = tearoff();
-  Expect.isTrue(f is Future<A>);
-  Expect.isFalse(f is Future<B>);
-}
-
-main() {
-  var f_inferred_futureObject = () async {
-    await quick();
-    if (false) {
-      return 0;
-    } else {
-      return new A();
-    }
-  };
-
-  var f_inferred_A = () async {
-    await quick();
-    if (false) {
-      return new A();
-    } else {
-      return new B();
-    }
-  };
-
-  Future<dynamic> Function() f_futureDynamic = () async {
-    await quick();
-    if (false) {
-      return 0;
-    } else {
-      return new B();
-    }
-  };
-
-  Future<A> Function() f_A = () async {
-    await quick();
-    if (false) {
-      return new A();
-    } else {
-      return new B();
-    }
-  };
-
-  Future<A> Function() f_immediateReturn_B = () async {
-    if (false) {
-      return new A();
-    } else {
-      return new B();
-    }
-  };
-
-  Future<A> Function() f_immediateReturn_FutureB = () async {
-    if (false) {
-      return new A();
-    } else {
-      return futureB();
-    }
-  };
-
-  Future<A> Function() f_expressionSyntax_B =
-      () async => false ? new A() : new B();
-
-  Future<A> Function() f_expressionSyntax_FutureB =
-      () async => false ? futureA() : futureB();
-
-  // Not executed
-  void checkStaticTypes() {
-    // Check that f_inferred_futureObject's static return type is
-    // `Future<Object>`, by verifying that its return value can be assigned to
-    // `Future<int>` but not `int`.
-    Future<int> v1 = f_inferred_futureObject();
-
-
-    // Check that f_inferred_A's static return type is `Future<A>`, by verifying
-    // that its return value can be assigned to `Future<B2>` but not
-    // `Future<int>`.
-    Future<B2> v3 = f_inferred_A();
-
-  }
-
-  checkFutureObject(f_inferred_futureObject);
-  checkFutureA(f_inferred_A);
-  checkFutureDynamic(f_futureDynamic);
-  checkFutureA(f_A);
-  checkFutureA(f_immediateReturn_B);
-  checkFutureA(f_immediateReturn_FutureB);
-  checkFutureA(f_expressionSyntax_B);
-  checkFutureA(f_expressionSyntax_FutureB);
-}
diff --git a/tests/language_2/async/congruence_unnamed_test.dart b/tests/language_2/async/congruence_unnamed_test.dart
deleted file mode 100644
index 4c069d9c4a7..00000000000
--- a/tests/language_2/async/congruence_unnamed_test.dart
+++ /dev/null
@@ -1,150 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test verifies that for an unnamed async closure, the following three
-// types are all appropriately matched:
-// - The static return type
-// - The return type of reified runtime type of a tearoff of the function or
-//   method
-// - The reified type of the future returned by the function or method
-//
-// Specific attention is paid to the following conditions:
-// - The static return type is determined by type inference
-// - The static return type is `dynamic`
-// - The function or method immediately returns a value or future with a
-//   different type (possibly using `=>` syntax)
-
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-
-class A {}
-
-class B extends A {}
-
-class B2 extends A {}
-
-Future quick() async {}
-
-Future<A> futureA() => new Future<A>.value(new A());
-
-Future<B> futureB() => new Future<B>.value(new B());
-
-void checkFutureObject(dynamic tearoff) {
-  Expect.isTrue(tearoff is Future<Object> Function());
-  Expect.isFalse(tearoff is Future<A> Function());
-  dynamic f = tearoff();
-  Expect.isTrue(f is Future<Object>);
-  Expect.isFalse(f is Future<A>);
-}
-
-void checkFutureDynamic(dynamic tearoff) {
-  Expect.isTrue(tearoff is Future<dynamic> Function());
-  Expect.isFalse(tearoff is Future<A> Function());
-  dynamic f = tearoff();
-  Expect.isTrue(f is Future<dynamic>);
-  Expect.isFalse(f is Future<A>);
-}
-
-void checkFutureA(dynamic tearoff) {
-  Expect.isTrue(tearoff is Future<A> Function());
-  Expect.isFalse(tearoff is Future<B> Function());
-  dynamic f = tearoff();
-  Expect.isTrue(f is Future<A>);
-  Expect.isFalse(f is Future<B>);
-}
-
-main() {
-  var f_inferred_futureObject = () async {
-    await quick();
-    if (false) {
-      return 0;
-    } else {
-      return new A();
-    }
-  };
-
-  var f_inferred_A = () async {
-    await quick();
-    if (false) {
-      return new A();
-    } else {
-      return new B();
-    }
-  };
-
-  Future<dynamic> Function() f_futureDynamic = () async {
-    await quick();
-    if (false) {
-      return 0;
-    } else {
-      return new B();
-    }
-  };
-
-  Future<A> Function() f_A = () async {
-    await quick();
-    if (false) {
-      return new A();
-    } else {
-      return new B();
-    }
-  };
-
-  Future<A> Function() f_immediateReturn_B = () async {
-    if (false) {
-      return new A();
-    } else {
-      return new B();
-    }
-  };
-
-  Future<A> Function() f_immediateReturn_FutureB = () async {
-    if (false) {
-      return new A();
-    } else {
-      return futureB();
-    }
-  };
-
-  Future<A> Function() f_expressionSyntax_B =
-      () async => false ? new A() : new B();
-
-  Future<A> Function() f_expressionSyntax_FutureB =
-      () async => false ? futureA() : futureB();
-
-  // Not executed
-  void checkStaticTypes() {
-    // Check that f_inferred_futureObject's static return type is
-    // `Future<Object>`, by verifying that its return value can be assigned to
-    // `Future<int>` but not `int`.
-    Future<int> v1 = f_inferred_futureObject();
-    int v2 = f_inferred_futureObject();
-    //       ^^^^^^^^^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-    //                              ^
-    // [cfe] A value of type 'Future<Object>' can't be assigned to a variable of type 'int'.
-
-    // Check that f_inferred_A's static return type is `Future<A>`, by verifying
-    // that its return value can be assigned to `Future<B2>` but not
-    // `Future<int>`.
-    Future<B2> v3 = f_inferred_A();
-    Future<int> v4 = f_inferred_A();
-    //               ^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-    //                           ^
-    // [cfe] A value of type 'Future<A>' can't be assigned to a variable of type 'Future<int>'.
-  }
-
-  checkFutureObject(f_inferred_futureObject);
-  checkFutureA(f_inferred_A);
-  checkFutureDynamic(f_futureDynamic);
-  checkFutureA(f_A);
-  checkFutureA(f_immediateReturn_B);
-  checkFutureA(f_immediateReturn_FutureB);
-  checkFutureA(f_expressionSyntax_B);
-  checkFutureA(f_expressionSyntax_FutureB);
-}
diff --git a/tests/language_2/async/continue_label_test.dart b/tests/language_2/async/continue_label_test.dart
deleted file mode 100644
index 9df59e15d66..00000000000
--- a/tests/language_2/async/continue_label_test.dart
+++ /dev/null
@@ -1,118 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-// Two loop variables
-test1() async {
-  var r = 0;
-  label:
-  for (var i = 1,
-          j =
-      await //# await_in_init: ok
-              10;
-      i < 10 &&
-          j >
-      await //# await_in_condition: ok
-              -5;
-      j--,
-      i +=
-      await //# await_in_update: ok
-          1) {
-    if (i <
-        await //# await_in_body: ok
-            5 ||
-        j < -5) {
-      continue label;
-    }
-    r++;
-  }
-  Expect.equals(5, r);
-}
-
-// One loop variable
-test2() async {
-  var r = 0;
-  label:
-  for (var i =
-     await //# await_in_init: ok
-          0;
-      i <
-     await //# await_in_condition: ok
-          10;
-      i +=
-     await //# await_in_update: ok
-          1) {
-    if (i <
-        await //# await_in_body: ok
-        5) {
-      continue label;
-    }
-    r++;
-  }
-  Expect.equals(5, r);
-}
-
-// Variable not declared in initializer;
-test3() async {
-  var r = 0, i, j;
-  label:
-  for (i =
-      await //# await_in_init: ok
-          0;
-      i <
-      await //# await_in_condition: ok
-          10;
-      i +=
-      await //# await_in_update: ok
-          1) {
-    if (i <
-        await //# await_in_body: ok
-        5) {
-      continue label;
-    }
-    r++;
-  }
-  Expect.equals(5, r);
-}
-
-// Nested loop
-test4() async {
-  var r = 0;
-  label:
-  for (var i =
-      await //# await_in_init: ok
-          0;
-      i <
-      await //# await_in_condition: ok
-          10;
-      i +=
-      await //# await_in_update: ok
-          1) {
-    if (i <
-        await //# await_in_body: ok
-        5) {
-      for (int i = 0; i < 10; i++) {
-        continue label;
-      }
-    }
-    r++;
-  }
-  Expect.equals(5, r);
-}
-
-test() async {
-  await test1();
-  await test2();
-  await test3();
-  await test4();
-}
-
-main() {
-  asyncStart();
-  test().then((_) => asyncEnd());
-}
diff --git a/tests/language_2/async/control_structures_test.dart b/tests/language_2/async/control_structures_test.dart
deleted file mode 100644
index 787197c3446..00000000000
--- a/tests/language_2/async/control_structures_test.dart
+++ /dev/null
@@ -1,99 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-import 'package:expect/expect.dart';
-
-import 'dart:async';
-
-expectThenValue(future, value) {
-  Expect.isTrue(future is Future);
-  future.then((result) {
-    Expect.equals(value, result);
-  });
-}
-
-asyncIf(condition) async {
-  if (condition) {
-    return 1;
-  } else {
-    return 2;
-  }
-  // This return is never reached as the finally block returns from the
-  // function.
-  return 3;
-}
-
-asyncFor(condition) async {
-  for (int i = 0; i < 10; i++) {
-    if (i == 5 && condition) {
-      return 1;
-    }
-  }
-  return 2;
-}
-
-asyncTryCatchFinally(overrideInFinally, doThrow) async {
-  try {
-    if (doThrow) throw 444;
-    return 1;
-  } catch (e) {
-    return e;
-  } finally {
-    if (overrideInFinally) return 3;
-  }
-}
-
-asyncTryCatchLoop() async {
-  var i = 0;
-  var throws = 13;
-  while (true) {
-    try {
-      throw throws;
-    } catch (e) {
-      if (i == throws) {
-        return e;
-      }
-    } finally {
-      i++;
-    }
-  }
-}
-
-asyncImplicitReturn() async {
-  try {} catch (e) {} finally {}
-}
-
-main() {
-  var asyncReturn;
-
-  for (int i = 0; i < 10; i++) {
-    asyncReturn = asyncIf(true);
-    expectThenValue(asyncReturn, 1);
-    asyncReturn = asyncIf(false);
-    expectThenValue(asyncReturn, 2);
-
-    asyncReturn = asyncFor(true);
-    expectThenValue(asyncReturn, 1);
-    asyncReturn = asyncFor(false);
-    expectThenValue(asyncReturn, 2);
-
-    asyncReturn = asyncTryCatchFinally(true, false);
-    expectThenValue(asyncReturn, 3);
-    asyncReturn = asyncTryCatchFinally(false, false);
-    expectThenValue(asyncReturn, 1);
-    asyncReturn = asyncTryCatchFinally(true, true);
-    expectThenValue(asyncReturn, 3);
-    asyncReturn = asyncTryCatchFinally(false, true);
-    expectThenValue(asyncReturn, 444);
-    asyncReturn = asyncTryCatchLoop();
-    expectThenValue(asyncReturn, 13);
-
-    asyncReturn = asyncImplicitReturn();
-    expectThenValue(asyncReturn, null);
-  }
-}
diff --git a/tests/language_2/async/covariant_type_test.dart b/tests/language_2/async/covariant_type_test.dart
deleted file mode 100644
index cb050f79b72..00000000000
--- a/tests/language_2/async/covariant_type_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that TypeErrors happen for async methods without using returned Future.
-
-import 'dart:async';
-import 'package:expect/expect.dart';
-
-class D<T> {
-  // Parametric covariance check is usually compiled into method.
-  Future<T> add(T n) async {
-    return n;
-  }
-}
-
-main() async {
-  D<num> d = new D<int>();
-  Expect.throwsTypeError(() => d.add(4.6));
-}
diff --git a/tests/language_2/async/dcall_type_test.dart b/tests/language_2/async/dcall_type_test.dart
deleted file mode 100644
index 96d7a2e9a0f..00000000000
--- a/tests/language_2/async/dcall_type_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that TypeErrors happen for async methods without using returned Future.
-
-import 'dart:async';
-import 'package:expect/expect.dart';
-
-Future<int> iota(int n) async {
-  await null;
-  return n;
-}
-
-class C {
-  Future<int> add(int n) async {
-    await null;
-    return n;
-  }
-}
-
-main() async {
-  dynamic f = iota;
-  Expect.throwsTypeError(() => f('ten'));
-  Expect.throwsTypeError(() => f(4.7));
-
-  dynamic o = new C();
-  Expect.throwsTypeError(() => o.add('ten'));
-  Expect.throwsTypeError(() => o.add(4.7));
-}
diff --git a/tests/language_2/async/error_timing_test.dart b/tests/language_2/async/error_timing_test.dart
deleted file mode 100644
index dd4251c4e0b..00000000000
--- a/tests/language_2/async/error_timing_test.dart
+++ /dev/null
@@ -1,266 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-class AsyncTracker {
-  int runningAsyncs = 0;
-  List expectedEvents;
-  final List actualEvents = [];
-
-  AsyncTracker() {
-    asyncStart();
-  }
-
-  void start(String event) {
-    actualEvents.add("start $event");
-    runningAsyncs++;
-  }
-
-  void stop(String event) {
-    actualEvents.add("stop $event");
-    if (--runningAsyncs == 0) {
-      Expect.listEquals(expectedEvents, actualEvents);
-      asyncEnd();
-    }
-  }
-
-  void add(e) {
-    actualEvents.add(e);
-  }
-}
-
-void test1() {
-  var tracker = new AsyncTracker();
-
-  Future foo() async {
-    tracker.add("error-foo");
-    throw "foo";
-  }
-
-  tracker.start("micro1");
-  scheduleMicrotask(() {
-    tracker.start("micro2");
-    scheduleMicrotask(() {
-      tracker.stop("micro2");
-    });
-    tracker.stop("micro1");
-  });
-
-  tracker.start("foo");
-  foo().catchError((e) {
-    tracker.stop("foo");
-  });
-  tracker.start("micro3");
-  scheduleMicrotask(() {
-    tracker.stop("micro3");
-  });
-
-  tracker.expectedEvents = [
-    "start micro1",
-    "start foo",
-    "error-foo",
-    "start micro3",
-    "start micro2",
-    "stop micro1",
-    "stop foo",
-    "stop micro3",
-    "stop micro2",
-  ];
-}
-
-void test2() {
-  var tracker = new AsyncTracker();
-
-  Future bar() async {
-    tracker.add("await null");
-    await null;
-    tracker.add("error-bar");
-    throw "bar";
-  }
-
-  tracker.start("micro1");
-  scheduleMicrotask(() {
-    tracker.start("micro2");
-    scheduleMicrotask(() {
-      tracker.start("micro3");
-      scheduleMicrotask(() {
-        tracker.stop("micro3");
-      });
-      tracker.stop("micro2");
-    });
-    tracker.stop("micro1");
-  });
-
-  tracker.start("bar");
-  bar().catchError((e) {
-    tracker.stop("bar");
-  });
-  tracker.start("micro4");
-  scheduleMicrotask(() {
-    tracker.start("micro5");
-    scheduleMicrotask(() {
-      tracker.stop("micro5");
-    });
-    tracker.stop("micro4");
-  });
-
-  tracker.expectedEvents = [
-    "start micro1",
-    "start bar",
-    "await null",
-    "start micro4",
-    "start micro2",
-    "stop micro1",
-    "error-bar",
-    "stop bar",
-    "start micro5",
-    "stop micro4",
-    "start micro3",
-    "stop micro2",
-    "stop micro5",
-    "stop micro3",
-  ];
-}
-
-void test3() {
-  var tracker = new AsyncTracker();
-
-  Future gee() async {
-    tracker.add("error-gee");
-    return new Future.error("gee");
-  }
-
-  tracker.start("micro1");
-  scheduleMicrotask(() {
-    tracker.start("micro2");
-    scheduleMicrotask(() {
-      tracker.stop("micro2");
-    });
-    tracker.stop("micro1");
-  });
-
-  tracker.start("gee");
-  gee().catchError((e) {
-    tracker.stop("gee");
-  });
-  tracker.start("micro3");
-  scheduleMicrotask(() {
-    tracker.stop("micro3");
-  });
-
-  tracker.expectedEvents = [
-    "start micro1",
-    "start gee",
-    "error-gee",
-    "start micro3",
-    "start micro2",
-    "stop micro1",
-    "stop gee",
-    "stop micro3",
-    "stop micro2",
-  ];
-}
-
-void test4() {
-  var tracker = new AsyncTracker();
-
-  Future toto() async {
-    tracker.add("await null");
-    await null;
-    tracker.add("error-toto");
-    return new Future.error("toto");
-  }
-
-  tracker.start("micro1");
-  scheduleMicrotask(() {
-    tracker.start("micro2");
-    scheduleMicrotask(() {
-      tracker.start("micro3");
-      scheduleMicrotask(() {
-        tracker.stop("micro3");
-      });
-      tracker.stop("micro2");
-    });
-    tracker.stop("micro1");
-  });
-
-  tracker.start("toto");
-  toto().catchError((e) {
-    tracker.stop("toto");
-  });
-  tracker.start("micro4");
-  scheduleMicrotask(() {
-    tracker.start("micro5");
-    scheduleMicrotask(() {
-      tracker.stop("micro5");
-    });
-    tracker.stop("micro4");
-  });
-
-  tracker.expectedEvents = [
-    "start micro1",
-    "start toto",
-    "await null",
-    "start micro4",
-    "start micro2",
-    "stop micro1",
-    "error-toto",
-    "start micro5",
-    "stop micro4",
-    "start micro3",
-    "stop micro2",
-    "stop toto",
-    "stop micro5",
-    "stop micro3",
-  ];
-}
-
-void test5() {
-  var tracker = new AsyncTracker();
-
-  Future foo() async {
-    tracker.add("throw");
-    throw "foo";
-  }
-
-  bar() async {
-    tracker.start('micro');
-    scheduleMicrotask(() {
-      tracker.stop('micro');
-    });
-    try {
-      tracker.start('foo');
-      await foo();
-    } catch (e) {
-      tracker.stop('foo');
-    }
-    tracker.stop("bar");
-  }
-
-  tracker.start('bar');
-
-  tracker.expectedEvents = [
-    "start bar",
-    "start micro",
-    "start foo",
-    "throw",
-    "stop micro",
-    "stop foo",
-    "stop bar",
-  ];
-}
-
-main() {
-  asyncStart();
-  test1();
-  test2();
-  test3();
-  test4();
-  asyncEnd();
-}
diff --git a/tests/language_2/async/finally_rethrow_test.dart b/tests/language_2/async/finally_rethrow_test.dart
deleted file mode 100644
index 5cdb7df896f..00000000000
--- a/tests/language_2/async/finally_rethrow_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-
-foo() async {
-  try {
-    await 1;
-    throw "error";
-  } on String catch (e) {
-    await 2;
-    throw e;
-  } finally {
-    await 3;
-  }
-}
-
-main() async {
-  var error = "no error";
-  try {
-    await foo();
-  } catch (e) {
-    error = e;
-  }
-  Expect.equals("error", error);
-}
diff --git a/tests/language_2/async/helper_lib.dart b/tests/language_2/async/helper_lib.dart
deleted file mode 100644
index 51e6a216fa2..00000000000
--- a/tests/language_2/async/helper_lib.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library async;
-
-class async {}
diff --git a/tests/language_2/async/identifier_test.dart b/tests/language_2/async/identifier_test.dart
deleted file mode 100644
index c253ae70e2b..00000000000
--- a/tests/language_2/async/identifier_test.dart
+++ /dev/null
@@ -1,216 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=
-// VMOptions=--dwarf_stack_traces --no-retain_function_objects --no-retain_code_objects
-
-import 'dart:async' as async;
-import 'lib.dart' as l; // Minimal library containing "int async;".
-
-// Adapted from Analyzer test testing where `async` was not previously allowed.
-
-// Helpers
-void ignore(argument) {}
-
-class GNamed {
-  void g({Object async = null}) {}
-}
-
-class AGet {
-  int get async => 1;
-  set async(int i) {}
-}
-
-class ACall {
-  int async() => 1;
-}
-
-main() {
-  // Each test declares a separate async function, tests that `async`
-  // can occur in it, and makes sure the function is run.
-  {
-    const int async = 0;
-    f() async {
-      g(@async x) {}
-      g(0);
-    }
-
-    f();
-  }
-  {
-    f(c) async {
-      c.g(async: 0);
-    }
-
-    f(GNamed());
-  }
-  {
-    f() async {
-      var async = 1;
-      ignore(async);
-    }
-
-    f();
-  }
-  {
-    f() async* {
-      var async = 1;
-      ignore(async);
-    }
-
-    f().forEach(ignore);
-  }
-  {
-    f() async {
-      async:
-      while (true) {
-        break async;
-      }
-    }
-
-    f();
-  }
-  {
-    g() {}
-    f() async {
-      try {
-        g();
-      } catch (async) {}
-    }
-
-    f();
-  }
-  {
-    g() {}
-    f() async {
-      try {
-        g();
-      } catch (e, async) {}
-    }
-
-    f();
-  }
-  {
-    f() async {
-      async:
-      while (true) {
-        if (false) continue async;
-        break;
-      }
-    }
-
-    f();
-  }
-  {
-    var async;
-    f() async {
-      for (async in []) {}
-    }
-
-    f();
-  }
-  {
-    f() async {
-      g(int async) {}
-      g(0);
-    }
-
-    f();
-  }
-  {
-    f() async {
-      return new AGet().async;
-    }
-
-    f();
-  }
-  {
-    f() async {
-      return new ACall().async();
-    }
-
-    f();
-  }
-  {
-    f() async {
-      return new ACall()..async();
-    }
-
-    f();
-  }
-  {
-    g() {}
-    f() async {
-      async:
-      g();
-    }
-
-    f();
-  }
-  {
-    f() async {
-      int async() => null;
-      async();
-    }
-
-    f();
-  }
-  {
-    f() async {
-      return async.Future.value(0);
-    }
-
-    f();
-  }
-  {
-    f() async {
-      new AGet().async = 1;
-    }
-
-    f();
-  }
-  {
-    f() async {
-      return new AGet()..async = 1;
-    }
-
-    f();
-  }
-  {
-    int async = 1;
-    f() async {
-      return "$async";
-    }
-
-    f();
-  }
-  {
-    f() async {
-      return l.async;
-    }
-
-    f();
-  }
-  {
-    f() async {
-      switch (0) {
-        async:
-        case 0:
-          break;
-      }
-    }
-
-    f();
-  }
-  {
-    f() sync* {
-      var async = 1;
-      ignore(async);
-    }
-
-    f();
-  }
-}
diff --git a/tests/language_2/async/lib.dart b/tests/language_2/async/lib.dart
deleted file mode 100644
index ce829a95752..00000000000
--- a/tests/language_2/async/lib.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Helper library for async_identifier_test.dart
-
-int async;
diff --git a/tests/language_2/async/or_generator_return_type_stacktrace_runtime_test.dart b/tests/language_2/async/or_generator_return_type_stacktrace_runtime_test.dart
deleted file mode 100644
index 8adb77ea535..00000000000
--- a/tests/language_2/async/or_generator_return_type_stacktrace_runtime_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-
-
-
-
-void main() {}
diff --git a/tests/language_2/async/or_generator_return_type_stacktrace_test.dart b/tests/language_2/async/or_generator_return_type_stacktrace_test.dart
deleted file mode 100644
index 414686c4bab..00000000000
--- a/tests/language_2/async/or_generator_return_type_stacktrace_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-int badReturnTypeAsync() async {}
-// [error line 9, column 1, length 3]
-// [analyzer] COMPILE_TIME_ERROR.ILLEGAL_ASYNC_RETURN_TYPE
-//  ^
-// [cfe] Functions marked 'async' must have a return type assignable to 'Future'.
-int badReturnTypeAsyncStar() async* {}
-// [error line 14, column 1, length 3]
-// [analyzer] COMPILE_TIME_ERROR.ILLEGAL_ASYNC_GENERATOR_RETURN_TYPE
-//  ^
-// [cfe] Functions marked 'async*' must have a return type assignable to 'Stream'.
-int badReturnTypeSyncStar() sync* {}
-// [error line 19, column 1, length 3]
-// [analyzer] COMPILE_TIME_ERROR.ILLEGAL_SYNC_GENERATOR_RETURN_TYPE
-//  ^
-// [cfe] Functions marked 'sync*' must have a return type assignable to 'Iterable'.
-
-void main() {}
diff --git a/tests/language_2/async/regression_23058_test.dart b/tests/language_2/async/regression_23058_test.dart
deleted file mode 100644
index 7947806fb95..00000000000
--- a/tests/language_2/async/regression_23058_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 23058.
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-class A {
-  var x = new B();
-
-  foo() async {
-    return x.foo == 2 ? 42 : x.foo;
-  }
-}
-
-class B {
-  var x = 0;
-
-  get foo {
-    if (x == -1) {
-      return 0;
-    } else {
-      return x++;
-    }
-  }
-}
-
-main() {
-  asyncStart();
-  new A().foo().then((result) {
-    Expect.equals(1, result);
-    asyncEnd();
-  });
-}
diff --git a/tests/language_2/async/rethrow_test.dart b/tests/language_2/async/rethrow_test.dart
deleted file mode 100644
index be87dfd1148..00000000000
--- a/tests/language_2/async/rethrow_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-
-const String exceptionString = "exceptionalString";
-
-throwString() async {
-  try {
-    throw exceptionString;
-  } catch (e) {
-    await 1;
-    throw e;
-  }
-}
-
-rethrowString() async {
-  try {
-    throw exceptionString;
-  } catch (e) {
-    await 1;
-    rethrow;
-  }
-}
-
-testThrow() {
-  Future f = throwString();
-  f.then((v) {
-    Expect.fail("Exception not thrown");
-  }, onError: (e) {
-    Expect.equals(exceptionString, e);
-  });
-}
-
-testRethrow() {
-  Future f = rethrowString();
-  f.then((v) {
-    Expect.fail("Exception not thrown");
-  }, onError: (e) {
-    Expect.equals(exceptionString, e);
-  });
-}
-
-main() {
-  testThrow();
-  testRethrow();
-}
diff --git a/tests/language_2/async/return_throw_test.dart b/tests/language_2/async/return_throw_test.dart
deleted file mode 100644
index d24c4c5fe8e..00000000000
--- a/tests/language_2/async/return_throw_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-Future<String> f() async {
-  throw 'f';
-}
-
-Future<String> g() async {
-  try {
-    // Should obtain the `Future<String>`, await it, then throw.
-    return f();
-  } catch (e) {
-    // Having caught the exception, we return a value.
-    return 'g';
-  }
-}
-
-void main() async {
-  Expect.equals('g', await g());
-}
diff --git a/tests/language_2/async/return_types_runtime_test.dart b/tests/language_2/async/return_types_runtime_test.dart
deleted file mode 100644
index 34f4142f560..00000000000
--- a/tests/language_2/async/return_types_runtime_test.dart
+++ /dev/null
@@ -1,77 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-Future foo1() async {
-  return 3;
-}
-
-Future<int> foo2() async {
-  return 3;
-}
-
-
-foo3() async {
-  return "String";
-}
-
-
-foo4() async {
-  return "String";
-}
-
-
-foo5() async {
-  return 3;
-}
-
-Future<int> foo6() async {
-  // This is fine, the future is flattened
-  return new Future<int>.value(3);
-}
-
-
-foo7() async {
-  return new Future<int>.value(3);
-}
-
-Iterable<int> foo8() sync* {
-  yield 1;
-  // Can only have valueless return in sync* functions.
-  return
-
-      ;
-}
-
-Stream<int> foo9() async* {
-  yield 1;
-  // Can only have valueless return in async* functions.
-  return
-
-      ;
-}
-
-test() async {
-  Expect.equals(3, await foo1());
-  Expect.equals(3, await foo2());
-  Expect.equals("String", await foo3());
-  Expect.equals("String", await foo4());
-  Expect.equals(3, await foo5());
-  Expect.equals(3, await await foo6());
-  Expect.equals(3, await await foo7());
-  Expect.listEquals([1], foo8().toList());
-  Expect.listEquals([1], await foo9().toList());
-}
-
-main() {
-  asyncTest(test);
-}
diff --git a/tests/language_2/async/return_types_test.dart b/tests/language_2/async/return_types_test.dart
deleted file mode 100644
index 0e977829502..00000000000
--- a/tests/language_2/async/return_types_test.dart
+++ /dev/null
@@ -1,90 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-Future foo1() async {
-  return 3;
-}
-
-Future<int> foo2() async {
-  return 3;
-}
-
-Future<int>
-foo3() async {
-  return "String";
-  //     ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] A value of type 'Future<String>' can't be assigned to a variable of type 'FutureOr<int>'.
-}
-
-Future<int, String>
-// [error line 27, column 1, length 19]
-// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-// [cfe] Expected 1 type arguments.
-foo4() async {
-  return "String";
-}
-
-int
-// [error line 35, column 1, length 3]
-// [analyzer] COMPILE_TIME_ERROR.ILLEGAL_ASYNC_RETURN_TYPE
-foo5() async {
-// [error line 38, column 1]
-// [cfe] Functions marked 'async' must have a return type assignable to 'Future'.
-  return 3;
-}
-
-Future<int> foo6() async {
-  // This is fine, the future is flattened
-  return new Future<int>.value(3);
-}
-
-Future<Future<int>>
-foo7() async {
-  return new Future<int>.value(3);
-  //     ^^^^^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-}
-
-Iterable<int> foo8() sync* {
-  yield 1;
-  // Can only have valueless return in sync* functions.
-  return 8;
-//^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.RETURN_IN_GENERATOR
-//^^^^^^^^^
-// [cfe] 'sync*' and 'async*' can't return a value.
-}
-
-Stream<int> foo9() async* {
-  yield 1;
-  // Can only have valueless return in async* functions.
-  return 8;
-//^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.RETURN_IN_GENERATOR
-//^^^^^^^^^
-// [cfe] 'sync*' and 'async*' can't return a value.
-}
-
-test() async {
-  Expect.equals(3, await foo1());
-  Expect.equals(3, await foo2());
-  Expect.equals("String", await foo3());
-  Expect.equals("String", await foo4());
-  Expect.equals(3, await foo5());
-  Expect.equals(3, await await foo6());
-  Expect.equals(3, await await foo7());
-  Expect.listEquals([1], foo8().toList());
-  Expect.listEquals([1], await foo9().toList());
-}
-
-main() {
-  asyncTest(test);
-}
diff --git a/tests/language_2/async/switch_test.dart b/tests/language_2/async/switch_test.dart
deleted file mode 100644
index 7d8754aaacc..00000000000
--- a/tests/language_2/async/switch_test.dart
+++ /dev/null
@@ -1,93 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-foo1(a) async {
-  int k = 0;
-  switch (a) {
-    case 1:
-      await 3;
-      k += 1;
-      break;
-    case 2:
-      k += a;
-      return k + 2;
-    default: k = 2; //# withDefault: ok
-  }
-  return k;
-}
-
-foo2(a) async {
-  int k = 0;
-  switch (await a) {
-    case 1:
-      await 3;
-      k += 1;
-      break;
-    case 2:
-      k += await a;
-      return k + 2;
-    default: k = 2; //# withDefault: ok
-  }
-  return k;
-}
-
-foo3(a) async {
-  int k = 0;
-  switch (a) {
-    case 1:
-      k += 1;
-      break;
-    case 2:
-      k += a;
-      return k + 2;
-    default: k = 2; //# withDefault: ok
-  }
-  return k;
-}
-
-foo4(value) async {
-  int k = 0;
-  switch (await value) {
-    case 1:
-      k += 1;
-      break;
-    case 2:
-      k += 2;
-      return 2 + k;
-    default: k = 2; //# withDefault: ok
-  }
-  return k;
-}
-
-futureOf(a) async => await a;
-
-test() async {
-  Expect.equals(1, await foo1(1));
-  Expect.equals(4, await foo1(2));
-  Expect.equals(2, await foo1(3)); //# withDefault: ok
-  Expect.equals(0, await foo1(3)); //# none: ok
-  Expect.equals(1, await foo2(futureOf(1)));
-  Expect.equals(4, await foo2(futureOf(2)));
-  Expect.equals(2, await foo2(futureOf(3))); //# withDefault: ok
-  Expect.equals(0, await foo2(futureOf(3))); //# none: ok
-  Expect.equals(1, await foo3(1));
-  Expect.equals(4, await foo3(2));
-  Expect.equals(2, await foo3(3)); //# withDefault: ok
-  Expect.equals(0, await foo3(3)); //# none: ok
-  Expect.equals(1, await foo4(futureOf(1)));
-  Expect.equals(4, await foo4(futureOf(2)));
-  Expect.equals(2, await foo4(futureOf(3))); //# withDefault: ok
-  Expect.equals(0, await foo4(futureOf(3))); //# none: ok
-}
-
-void main() {
-  asyncStart();
-  test().then((_) => asyncEnd());
-}
diff --git a/tests/language_2/async/this_bound_test.dart b/tests/language_2/async/this_bound_test.dart
deleted file mode 100644
index f5d724e6b3d..00000000000
--- a/tests/language_2/async/this_bound_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-class A {
-  int a = -1;
-
-  @pragma('dart2js:noInline')
-  foo(ignored, val) {
-    Expect.equals(val, this.a);
-  }
-}
-
-testA() async {
-  var a = new A();
-  a.foo(await false, -1);
-  a.a = 0;
-  a.foo(await false, 0);
-}
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-class B {
-  var f;
-  var b = 10;
-
-  B(this.f);
-
-  bar(x) => b;
-}
-
-foo(x) => 499;
-bar(x) => 42;
-
-change(x) {
-  x.f = (x) => 99;
-}
-
-testB() async {
-  var b = confuse(new B(foo));
-  Expect.equals(99, b.f(await change(b)));
-  var b2 = confuse(new B(bar));
-  Expect.equals(10, b2.f(await (b2.f = b2.bar)));
-}
-
-test() async {
-  await testA();
-  await testB();
-}
-
-void main() {
-  asyncStart();
-  test().then((_) => asyncEnd());
-}
diff --git a/tests/language_2/async/throw_in_catch_test.dart b/tests/language_2/async/throw_in_catch_test.dart
deleted file mode 100644
index f2489821ce1..00000000000
--- a/tests/language_2/async/throw_in_catch_test.dart
+++ /dev/null
@@ -1,473 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-class Tracer {
-  final String expected;
-  final String name;
-  int counter = 0;
-
-  Tracer(this.expected, [this.name]);
-
-  void trace(msg) {
-    Expect.equals(expected[counter], msg);
-    counter++;
-  }
-
-  void done() {
-    Expect.equals(expected.length, counter, "Received too few traces");
-  }
-}
-
-foo1(Tracer tracer) async {
-  try {
-    tracer.trace("a");
-    // This await forces dart2js to rewrite the try into a state machine
-    // instead of relying on the existing structure.
-    await new Future.value(3); //# forceAwait: ok
-    tracer.trace("b");
-    throw "Error";
-  } catch (error) {
-    tracer.trace("c");
-    Expect.equals("Error", error);
-    throw "Error2";
-    tracer.trace("d");
-  } finally {
-    tracer.trace("e");
-  }
-  tracer.trace("f");
-}
-
-foo2(Tracer tracer) async {
-  try {
-    tracer.trace("a");
-    await new Future.value(3); //# forceAwait: continued
-    tracer.trace("b");
-    throw "Error";
-    tracer.trace("c");
-  } catch (error) {
-    tracer.trace("d");
-    Expect.equals("Error", error);
-    await new Future.error("Error2");
-  } finally {
-    tracer.trace("e");
-  }
-  tracer.trace("f");
-}
-
-foo3(Tracer tracer) async {
-  try {
-    tracer.trace("a");
-    await new Future.value(3); //# forceAwait: continued
-    tracer.trace("b");
-    throw "Error";
-    tracer.trace("c");
-  } catch (error) {
-    Expect.equals("Error", error);
-    tracer.trace("d");
-    return;
-  } finally {
-    tracer.trace("e");
-  }
-  tracer.trace("f");
-}
-
-foo4(Tracer tracer) async {
-  try {
-    try {
-      await new Future.value(3); //# forceAwait: continued
-      tracer.trace("a");
-      throw "Error";
-    } catch (error) {
-      tracer.trace("b");
-      Expect.equals("Error", error);
-      throw "Error2";
-    }
-  } catch (error) {
-    Expect.equals("Error2", error);
-    tracer.trace("c");
-  }
-  tracer.trace("d");
-}
-
-foo5(Tracer tracer) async {
-  try {
-    tracer.trace("a");
-    try {
-      await new Future.value(3); //# forceAwait: continued
-      tracer.trace("b");
-      throw "Error";
-    } catch (error) {
-      tracer.trace("c");
-      Expect.equals("Error", error);
-      throw "Error2";
-    }
-  } finally {
-    tracer.trace("d");
-  }
-  tracer.trace("e");
-}
-
-foo6(Tracer tracer) async {
-  try {
-    try {
-      await new Future.value(3); //# forceAwait: continued
-      tracer.trace("a");
-      throw "Error";
-    } catch (error) {
-      tracer.trace("b");
-      Expect.equals("Error", error);
-      throw "Error2";
-    } finally {
-      tracer.trace("c");
-      throw "Error3";
-    }
-  } catch (error) {
-    tracer.trace("d");
-    Expect.equals("Error3", error);
-  }
-  tracer.trace("e");
-}
-
-foo7(Tracer tracer) async {
-  try {
-    try {
-      await new Future.value(3); //# forceAwait: continued
-      tracer.trace("a");
-      throw "Error";
-    } catch (error) {
-      Expect.equals("Error", error);
-      tracer.trace("b");
-      throw "Error2";
-    } finally {
-      tracer.trace("c");
-      throw "Error3";
-    }
-  } finally {
-    tracer.trace("d");
-  }
-  tracer.trace("e");
-}
-
-foo8(Tracer tracer) async {
-  try {
-    try {
-      await new Future.value(3); //# forceAwait: continued
-      tracer.trace("a");
-      throw "Error";
-    } catch (error) {
-      Expect.equals("Error", error);
-      tracer.trace("b");
-      return;
-    } finally {
-      tracer.trace("c");
-      throw "Error3";
-    }
-  } finally {
-    tracer.trace("d");
-  }
-  tracer.trace("e");
-}
-
-foo9(Tracer tracer) async {
-  try {
-    while (true) {
-      try {
-        await new Future.value(3); //# forceAwait: continued
-        tracer.trace("a");
-        throw "Error";
-      } catch (error) {
-        Expect.equals("Error", error);
-        tracer.trace("b");
-        return;
-      } finally {
-        tracer.trace("c");
-        break;
-      }
-      tracer.trace("d");
-    }
-  } finally {
-    tracer.trace("e");
-  }
-  tracer.trace("f");
-}
-
-foo10(Tracer tracer) async {
-  try {
-    int i = 0;
-    while (true) {
-      try {
-        try {
-          tracer.trace("a");
-          throw "Error";
-        } catch (error) {
-          tracer.trace("b");
-          try {
-            await new Future.value(3); // //# forceAwait: continued
-            throw "Error2";
-          } catch (error) {
-            tracer.trace("c");
-          } finally {
-            tracer.trace("d");
-          }
-          tracer.trace("e");
-          throw "Error3";
-        } finally {
-          tracer.trace("f");
-          // Continue and breaks 'eats' Error3.
-          if (i == 0) continue;
-          if (i == 1) break;
-        }
-      } finally {
-        tracer.trace("g");
-        i++;
-      }
-    }
-  } finally {
-    tracer.trace("h");
-  }
-  tracer.trace("i");
-}
-
-foo11(Tracer tracer) async {
-  try {
-    bool firstTime = true;
-    while (true) {
-      tracer.trace("a");
-      if (firstTime) {
-        try {
-          await new Future.value(3); //# forceAwait: continued
-          tracer.trace("b");
-          throw "Error";
-        } catch (error) {
-          Expect.equals("Error", error);
-          tracer.trace("c");
-          firstTime = false;
-          continue;
-        } finally {
-          tracer.trace("d");
-        }
-      } else {
-        tracer.trace("e");
-        return;
-      }
-    }
-  } finally {
-    tracer.trace("f");
-  }
-  tracer.trace("g");
-}
-
-foo12(Tracer tracer) async {
-  try {
-    bool firstTime = true;
-    while (true) {
-      tracer.trace("a");
-      if (firstTime) {
-        try {
-          await new Future.value(3); //# forceAwait: continued
-          tracer.trace("b");
-          throw "Error";
-        } catch (error) {
-          Expect.equals("Error", error);
-          tracer.trace("c");
-          firstTime = false;
-          continue;
-        } finally {
-          tracer.trace("d");
-          break;
-        }
-      } else {
-        tracer.trace("e");
-        return;
-      }
-    }
-  } finally {
-    tracer.trace("f");
-  }
-  tracer.trace("g");
-}
-
-foo13(Tracer tracer) async {
-  try {
-    try {
-      tracer.trace("a");
-      return;
-    } catch (error) {
-      tracer.trace("b");
-    } finally {
-      tracer.trace("c");
-      try {
-        try {
-          await new Future.value(3); // //# forceAwait: continued
-          tracer.trace("d");
-          throw "Error";
-        } finally {
-          tracer.trace("e");
-        }
-      } finally {
-        tracer.trace("f");
-      }
-    }
-  } finally {
-    tracer.trace("g");
-  }
-  tracer.trace("h");
-}
-
-foo14(Tracer tracer) async {
-  try {
-    try {
-      tracer.trace("a");
-      throw "Error";
-    } catch (error) {
-      tracer.trace("b");
-      try {
-        await new Future.value(3); // //# forceAwait: continued
-        throw "Error2";
-      } catch (error) {
-        tracer.trace("c");
-      } finally {
-        tracer.trace("d");
-      }
-      tracer.trace("e");
-      throw "Error3";
-    } finally {
-      tracer.trace("f");
-    }
-  } finally {
-    tracer.trace("g");
-  }
-  tracer.trace("h");
-}
-
-foo15(Tracer tracer) async {
-  try {
-    try {
-      tracer.trace("a");
-      throw "Error";
-    } catch (error) {
-      tracer.trace("b");
-      try {
-        await new Future.value(3); // //# forceAwait: continued
-        throw "Error2";
-      } catch (error) {
-        tracer.trace("c");
-      } finally {
-        tracer.trace("d");
-      }
-      tracer.trace("e");
-      throw "Error3";
-    } finally {
-      tracer.trace("f");
-      return;
-    }
-  } finally {
-    tracer.trace("g");
-  }
-  tracer.trace("h");
-}
-
-foo16(Tracer tracer) async {
-  try {
-    try {
-      tracer.trace("a");
-      throw "Error";
-    } catch (error) {
-      tracer.trace("b");
-      try {
-        await new Future.value(3); // //# forceAwait: continued
-        throw "Error2";
-      } catch (error) {
-        tracer.trace("c");
-      } finally {
-        tracer.trace("d");
-        return;
-      }
-      tracer.trace("e");
-      throw "Error3";
-    } finally {
-      tracer.trace("f");
-    }
-  } finally {
-    tracer.trace("g");
-  }
-  tracer.trace("h");
-}
-
-foo17(Tracer tracer) async {
-  try {
-    tracer.trace("a");
-  } finally {
-    try {
-      tracer.trace("b");
-      throw "Error";
-    } catch (error) {
-      await new Future.value(3); // //# forceAwait: continued
-      Expect.equals("Error", error);
-      tracer.trace("c");
-    } finally {
-      tracer.trace("d");
-    }
-    tracer.trace("e");
-  }
-  tracer.trace("f");
-}
-
-foo18(Tracer tracer) async {
-  try {
-    tracer.trace("a");
-  } finally {
-    try {
-      tracer.trace("b");
-    } finally {
-      await new Future.value(3); // //# forceAwait: continued
-      tracer.trace("c");
-    }
-    tracer.trace("d");
-  }
-  tracer.trace("e");
-}
-
-runTest(expectedTrace, fun, [expectedError]) async {
-  Tracer tracer = new Tracer(expectedTrace, expectedTrace);
-  try {
-    await fun(tracer);
-  } catch (error) {
-    Expect.equals(expectedError, error);
-    tracer.trace("X");
-  }
-  tracer.done();
-}
-
-test() async {
-  await runTest("abceX", foo1, "Error2");
-  await runTest("abdeX", foo2, "Error2");
-  await runTest("abde", foo3);
-  await runTest("abcd", foo4);
-  await runTest("abcdX", foo5, "Error2");
-  await runTest("abcde", foo6);
-  await runTest("abcdX", foo7, "Error3");
-  await runTest("abcdX", foo8, "Error3");
-  await runTest("abcef", foo9);
-  await runTest("abcdefgabcdefghi", foo10);
-  await runTest("abcdaef", foo11);
-  await runTest("abcdfg", foo12);
-  await runTest("acdefgX", foo13, "Error");
-  await runTest("abcdefgX", foo14, "Error3");
-  await runTest("abcdefgX", foo14, "Error3");
-  await runTest("abcdefg", foo15);
-  await runTest("abcdfg", foo16);
-  await runTest("abcdef", foo17);
-  await runTest("abcde", foo18);
-}
-
-void main() {
-  asyncTest(test);
-}
diff --git a/tests/language_2/async_nested/async_nested01_test.dart b/tests/language_2/async_nested/async_nested01_test.dart
deleted file mode 100644
index 0eea7942d83..00000000000
--- a/tests/language_2/async_nested/async_nested01_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10";
-  Node node = new Node('1', [
-    new Node('2', []),
-    await new Future.value(new Node('3', [
-      await new Future.value(new Node('4', [
-        new Node('5', [
-          await new Future.value(new Node('6', [
-            await new Future.value(new Node('7', [])),
-          ])),
-          await new Future.value(new Node('8', [])),
-          await new Future.value(new Node('9', [])),
-        ]),
-      ])),
-    ])),
-    await new Future.value(new Node('10', [])),
-  ]);
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested02_test.dart b/tests/language_2/async_nested/async_nested02_test.dart
deleted file mode 100644
index e5efb09c3ef..00000000000
--- a/tests/language_2/async_nested/async_nested02_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11";
-  Node node = new Node('1', [
-    new Node('2', [
-      new Node('3', []),
-    ]),
-    await new Future.value(new Node('4', [
-      await new Future.value(new Node('5', [])),
-      new Node('6', [
-        new Node('7', []),
-        await new Future.value(new Node('8', [])),
-      ]),
-      await new Future.value(new Node('9', [])),
-    ])),
-    await new Future.value(new Node('10', [])),
-    new Node('11', []),
-  ]);
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested03_test.dart b/tests/language_2/async_nested/async_nested03_test.dart
deleted file mode 100644
index 863fb09518a..00000000000
--- a/tests/language_2/async_nested/async_nested03_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12";
-  Node node = new Node('1', [
-    new Node('2', [
-      await new Future.value(new Node('3', [])),
-      await new Future.value(new Node('4', [
-        new Node('5', []),
-        await new Future.value(new Node('6', [])),
-        await new Future.value(new Node('7', [])),
-        new Node('8', []),
-      ])),
-      new Node('9', []),
-      new Node('10', [
-        new Node('11', [
-          await new Future.value(new Node('12', [])),
-        ]),
-      ]),
-    ]),
-  ]);
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested04_test.dart b/tests/language_2/async_nested/async_nested04_test.dart
deleted file mode 100644
index 3f2890a6653..00000000000
--- a/tests/language_2/async_nested/async_nested04_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12";
-  Node node = await new Future.value(new Node('1', [
-    await new Future.value(new Node('2', [])),
-    await new Future.value(new Node('3', [])),
-    await new Future.value(new Node('4', [
-      await new Future.value(new Node('5', [])),
-      new Node('6', []),
-      new Node('7', [
-        new Node('8', []),
-        await new Future.value(new Node('9', [])),
-      ]),
-      await new Future.value(new Node('10', [])),
-    ])),
-    new Node('11', []),
-    await new Future.value(new Node('12', [])),
-  ]));
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested05_test.dart b/tests/language_2/async_nested/async_nested05_test.dart
deleted file mode 100644
index 95387e398de..00000000000
--- a/tests/language_2/async_nested/async_nested05_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12";
-  Node node = await new Future.value(new Node('1', [
-    await new Future.value(new Node('2', [])),
-    await new Future.value(new Node('3', [
-      await new Future.value(new Node('4', [])),
-      await new Future.value(new Node('5', [])),
-      await new Future.value(new Node('6', [])),
-    ])),
-    new Node('7', []),
-    new Node('8', [
-      new Node('9', []),
-      await new Future.value(new Node('10', [])),
-      new Node('11', []),
-      await new Future.value(new Node('12', [])),
-    ]),
-  ]));
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested06_test.dart b/tests/language_2/async_nested/async_nested06_test.dart
deleted file mode 100644
index 551eb384f32..00000000000
--- a/tests/language_2/async_nested/async_nested06_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12";
-  Node node = new Node('1', [
-    new Node('2', [
-      await new Future.value(new Node('3', [
-        new Node('4', []),
-      ])),
-      new Node('5', [
-        await new Future.value(new Node('6', [
-          await new Future.value(new Node('7', [
-            new Node('8', []),
-          ])),
-          new Node('9', []),
-          await new Future.value(new Node('10', [])),
-        ])),
-        await new Future.value(new Node('11', [])),
-        await new Future.value(new Node('12', [])),
-      ]),
-    ]),
-  ]);
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested07_test.dart b/tests/language_2/async_nested/async_nested07_test.dart
deleted file mode 100644
index 3571995a246..00000000000
--- a/tests/language_2/async_nested/async_nested07_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12";
-  Node node = await new Future.value(new Node('1', [
-    await new Future.value(new Node('2', [])),
-    await new Future.value(new Node('3', [
-      new Node('4', []),
-      new Node('5', []),
-      await new Future.value(new Node('6', [])),
-      new Node('7', [
-        await new Future.value(new Node('8', [
-          new Node('9', []),
-        ])),
-        await new Future.value(new Node('10', [])),
-      ]),
-    ])),
-    new Node('11', [
-      await new Future.value(new Node('12', [])),
-    ]),
-  ]));
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested08_test.dart b/tests/language_2/async_nested/async_nested08_test.dart
deleted file mode 100644
index be11233340e..00000000000
--- a/tests/language_2/async_nested/async_nested08_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13";
-  Node node = await new Future.value(new Node('1', [
-    await new Future.value(new Node('2', [
-      await new Future.value(new Node('3', [])),
-    ])),
-    await new Future.value(new Node('4', [
-      await new Future.value(new Node('5', [])),
-      await new Future.value(new Node('6', [])),
-      new Node('7', []),
-      new Node('8', []),
-      new Node('9', [
-        await new Future.value(new Node('10', [])),
-      ]),
-      new Node('11', []),
-      new Node('12', []),
-    ])),
-    await new Future.value(new Node('13', [])),
-  ]));
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested09_test.dart b/tests/language_2/async_nested/async_nested09_test.dart
deleted file mode 100644
index bd7057a9b9a..00000000000
--- a/tests/language_2/async_nested/async_nested09_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13";
-  Node node = new Node('1', [
-    new Node('2', [
-      await new Future.value(new Node('3', [])),
-      await new Future.value(new Node('4', [
-        new Node('5', []),
-        new Node('6', []),
-        new Node('7', []),
-        new Node('8', []),
-        await new Future.value(new Node('9', [
-          new Node('10', [
-            new Node('11', []),
-          ]),
-        ])),
-        await new Future.value(new Node('12', [])),
-      ])),
-      await new Future.value(new Node('13', [])),
-    ]),
-  ]);
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested10_test.dart b/tests/language_2/async_nested/async_nested10_test.dart
deleted file mode 100644
index 06e15c2d70f..00000000000
--- a/tests/language_2/async_nested/async_nested10_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13";
-  Node node = new Node('1', [
-    await new Future.value(new Node('2', [
-      new Node('3', []),
-      await new Future.value(new Node('4', [
-        await new Future.value(new Node('5', [
-          new Node('6', []),
-          new Node('7', [
-            new Node('8', []),
-          ]),
-          await new Future.value(new Node('9', [])),
-          new Node('10', [
-            new Node('11', []),
-          ]),
-        ])),
-      ])),
-      await new Future.value(new Node('12', [
-        new Node('13', []),
-      ])),
-    ])),
-  ]);
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested11_test.dart b/tests/language_2/async_nested/async_nested11_test.dart
deleted file mode 100644
index c9641a7c6db..00000000000
--- a/tests/language_2/async_nested/async_nested11_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13";
-  Node node = await new Future.value(new Node('1', [
-    await new Future.value(new Node('2', [
-      new Node('3', []),
-      new Node('4', [
-        new Node('5', []),
-        new Node('6', []),
-        await new Future.value(new Node('7', [
-          new Node('8', [
-            new Node('9', []),
-          ]),
-          new Node('10', []),
-          new Node('11', [
-            await new Future.value(new Node('12', [])),
-          ]),
-        ])),
-        await new Future.value(new Node('13', [])),
-      ]),
-    ])),
-  ]));
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested12_test.dart b/tests/language_2/async_nested/async_nested12_test.dart
deleted file mode 100644
index db02de61e86..00000000000
--- a/tests/language_2/async_nested/async_nested12_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13";
-  Node node = new Node('1', [
-    await new Future.value(new Node('2', [])),
-    await new Future.value(new Node('3', [])),
-    new Node('4', [
-      await new Future.value(new Node('5', [
-        new Node('6', []),
-        new Node('7', []),
-        await new Future.value(new Node('8', [
-          new Node('9', []),
-        ])),
-      ])),
-      new Node('10', [
-        new Node('11', []),
-        await new Future.value(new Node('12', [])),
-      ]),
-    ]),
-    await new Future.value(new Node('13', [])),
-  ]);
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested13_test.dart b/tests/language_2/async_nested/async_nested13_test.dart
deleted file mode 100644
index a607205b916..00000000000
--- a/tests/language_2/async_nested/async_nested13_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13 14";
-  Node node = new Node('1', [
-    new Node('2', []),
-    await new Future.value(new Node('3', [])),
-    await new Future.value(new Node('4', [
-      new Node('5', [
-        await new Future.value(new Node('6', [
-          new Node('7', [
-            new Node('8', [
-              new Node('9', []),
-              new Node('10', []),
-              await new Future.value(new Node('11', [])),
-            ]),
-            await new Future.value(new Node('12', [])),
-          ]),
-        ])),
-        await new Future.value(new Node('13', [
-          new Node('14', []),
-        ])),
-      ]),
-    ])),
-  ]);
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested14_test.dart b/tests/language_2/async_nested/async_nested14_test.dart
deleted file mode 100644
index a39870b30a7..00000000000
--- a/tests/language_2/async_nested/async_nested14_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13 14";
-  Node node = new Node('1', [
-    new Node('2', []),
-    await new Future.value(new Node('3', [
-      new Node('4', [
-        await new Future.value(new Node('5', [])),
-        new Node('6', []),
-        new Node('7', []),
-        new Node('8', [
-          await new Future.value(new Node('9', [
-            new Node('10', []),
-            await new Future.value(new Node('11', [])),
-          ])),
-        ]),
-        await new Future.value(new Node('12', [])),
-      ]),
-      new Node('13', []),
-    ])),
-    await new Future.value(new Node('14', [])),
-  ]);
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested15_test.dart b/tests/language_2/async_nested/async_nested15_test.dart
deleted file mode 100644
index 83e5292f47e..00000000000
--- a/tests/language_2/async_nested/async_nested15_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13 14";
-  Node node = new Node('1', [
-    await new Future.value(new Node('2', [
-      await new Future.value(new Node('3', [
-        new Node('4', []),
-        await new Future.value(new Node('5', [
-          await new Future.value(new Node('6', [])),
-          new Node('7', [
-            new Node('8', []),
-            await new Future.value(new Node('9', [])),
-            new Node('10', []),
-            new Node('11', [
-              new Node('12', []),
-            ]),
-          ]),
-        ])),
-        new Node('13', [
-          await new Future.value(new Node('14', [])),
-        ]),
-      ])),
-    ])),
-  ]);
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested16_test.dart b/tests/language_2/async_nested/async_nested16_test.dart
deleted file mode 100644
index aa742d452fa..00000000000
--- a/tests/language_2/async_nested/async_nested16_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13 14";
-  Node node = await new Future.value(new Node('1', [
-    new Node('2', []),
-    await new Future.value(new Node('3', [
-      new Node('4', []),
-      new Node('5', []),
-      new Node('6', []),
-      new Node('7', []),
-      new Node('8', [
-        await new Future.value(new Node('9', [
-          await new Future.value(new Node('10', [])),
-        ])),
-      ]),
-      new Node('11', []),
-    ])),
-    new Node('12', [
-      new Node('13', [
-        await new Future.value(new Node('14', [])),
-      ]),
-    ]),
-  ]));
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested17_test.dart b/tests/language_2/async_nested/async_nested17_test.dart
deleted file mode 100644
index 62aa700a50f..00000000000
--- a/tests/language_2/async_nested/async_nested17_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13 14";
-  Node node = await new Future.value(new Node('1', [
-    new Node('2', []),
-    await new Future.value(new Node('3', [
-      new Node('4', [
-        await new Future.value(new Node('5', [])),
-        new Node('6', []),
-        new Node('7', []),
-      ]),
-      await new Future.value(new Node('8', [])),
-      new Node('9', [
-        new Node('10', []),
-        await new Future.value(new Node('11', [])),
-      ]),
-      await new Future.value(new Node('12', [])),
-    ])),
-    await new Future.value(new Node('13', [])),
-    new Node('14', []),
-  ]));
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested18_test.dart b/tests/language_2/async_nested/async_nested18_test.dart
deleted file mode 100644
index 73cb3aef23f..00000000000
--- a/tests/language_2/async_nested/async_nested18_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15";
-  Node node = new Node('1', [
-    new Node('2', []),
-    new Node('3', [
-      await new Future.value(new Node('4', [])),
-      new Node('5', [
-        new Node('6', [
-          new Node('7', [
-            await new Future.value(new Node('8', [
-              new Node('9', []),
-              new Node('10', []),
-              await new Future.value(new Node('11', [])),
-              await new Future.value(new Node('12', [])),
-              new Node('13', []),
-            ])),
-            await new Future.value(new Node('14', [
-              new Node('15', []),
-            ])),
-          ]),
-        ]),
-      ]),
-    ]),
-  ]);
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested19_test.dart b/tests/language_2/async_nested/async_nested19_test.dart
deleted file mode 100644
index 46c48bf8135..00000000000
--- a/tests/language_2/async_nested/async_nested19_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15";
-  Node node = await new Future.value(new Node('1', [
-    new Node('2', []),
-    new Node('3', []),
-    new Node('4', [
-      new Node('5', []),
-    ]),
-    new Node('6', [
-      new Node('7', []),
-    ]),
-    new Node('8', [
-      new Node('9', [
-        await new Future.value(new Node('10', [
-          new Node('11', [
-            new Node('12', []),
-            new Node('13', []),
-            await new Future.value(new Node('14', [])),
-          ]),
-        ])),
-        await new Future.value(new Node('15', [])),
-      ]),
-    ]),
-  ]));
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested20_test.dart b/tests/language_2/async_nested/async_nested20_test.dart
deleted file mode 100644
index 2d13af9fda2..00000000000
--- a/tests/language_2/async_nested/async_nested20_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15";
-  Node node = await new Future.value(new Node('1', [
-    await new Future.value(new Node('2', [
-      new Node('3', []),
-      await new Future.value(new Node('4', [
-        await new Future.value(new Node('5', [
-          new Node('6', []),
-          new Node('7', [
-            await new Future.value(new Node('8', [
-              new Node('9', []),
-            ])),
-            new Node('10', []),
-            new Node('11', []),
-            new Node('12', [
-              await new Future.value(new Node('13', [])),
-              new Node('14', []),
-            ]),
-          ]),
-        ])),
-        await new Future.value(new Node('15', [])),
-      ])),
-    ])),
-  ]));
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested21_test.dart b/tests/language_2/async_nested/async_nested21_test.dart
deleted file mode 100644
index a7fe3aed423..00000000000
--- a/tests/language_2/async_nested/async_nested21_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15";
-  Node node = await new Future.value(new Node('1', [
-    await new Future.value(new Node('2', [
-      new Node('3', [
-        new Node('4', [
-          await new Future.value(new Node('5', [])),
-          new Node('6', [
-            await new Future.value(new Node('7', [
-              new Node('8', [
-                await new Future.value(new Node('9', [])),
-                new Node('10', []),
-              ]),
-              new Node('11', []),
-              await new Future.value(new Node('12', [])),
-              new Node('13', []),
-            ])),
-            new Node('14', [
-              await new Future.value(new Node('15', [])),
-            ]),
-          ]),
-        ]),
-      ]),
-    ])),
-  ]));
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested22_test.dart b/tests/language_2/async_nested/async_nested22_test.dart
deleted file mode 100644
index f407cd60bb4..00000000000
--- a/tests/language_2/async_nested/async_nested22_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15";
-  Node node = new Node('1', [
-    await new Future.value(new Node('2', [])),
-    new Node('3', []),
-    await new Future.value(new Node('4', [
-      await new Future.value(new Node('5', [])),
-      new Node('6', [
-        new Node('7', [
-          new Node('8', [
-            new Node('9', []),
-          ]),
-        ]),
-        await new Future.value(new Node('10', [
-          new Node('11', []),
-        ])),
-        await new Future.value(new Node('12', [])),
-      ]),
-      new Node('13', []),
-    ])),
-    await new Future.value(new Node('14', [])),
-    new Node('15', []),
-  ]);
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested23_test.dart b/tests/language_2/async_nested/async_nested23_test.dart
deleted file mode 100644
index b7082d5800b..00000000000
--- a/tests/language_2/async_nested/async_nested23_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15";
-  Node node = new Node('1', [
-    await new Future.value(new Node('2', [])),
-    await new Future.value(new Node('3', [
-      new Node('4', [
-        new Node('5', [
-          new Node('6', []),
-          new Node('7', [
-            new Node('8', []),
-          ]),
-          new Node('9', []),
-          await new Future.value(new Node('10', [])),
-          new Node('11', []),
-        ]),
-      ]),
-      new Node('12', []),
-      await new Future.value(new Node('13', [])),
-    ])),
-    await new Future.value(new Node('14', [])),
-    new Node('15', []),
-  ]);
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested24_test.dart b/tests/language_2/async_nested/async_nested24_test.dart
deleted file mode 100644
index 66a18f0df9f..00000000000
--- a/tests/language_2/async_nested/async_nested24_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15";
-  Node node = await new Future.value(new Node('1', [
-    new Node('2', []),
-    new Node('3', []),
-    await new Future.value(new Node('4', [
-      await new Future.value(new Node('5', [])),
-      new Node('6', []),
-      await new Future.value(new Node('7', [])),
-      await new Future.value(new Node('8', [])),
-    ])),
-    new Node('9', []),
-    new Node('10', [
-      await new Future.value(new Node('11', [])),
-      new Node('12', [
-        await new Future.value(new Node('13', [])),
-        new Node('14', []),
-        await new Future.value(new Node('15', [])),
-      ]),
-    ]),
-  ]));
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested25_test.dart b/tests/language_2/async_nested/async_nested25_test.dart
deleted file mode 100644
index 9606cad1526..00000000000
--- a/tests/language_2/async_nested/async_nested25_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15";
-  Node node = new Node('1', [
-    new Node('2', [
-      new Node('3', [
-        new Node('4', []),
-        await new Future.value(new Node('5', [
-          await new Future.value(new Node('6', [
-            new Node('7', [
-              await new Future.value(new Node('8', [])),
-              new Node('9', []),
-              await new Future.value(new Node('10', [])),
-              await new Future.value(new Node('11', [])),
-              new Node('12', [
-                await new Future.value(new Node('13', [])),
-              ]),
-              new Node('14', []),
-            ]),
-          ])),
-          await new Future.value(new Node('15', [])),
-        ])),
-      ]),
-    ]),
-  ]);
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested26_test.dart b/tests/language_2/async_nested/async_nested26_test.dart
deleted file mode 100644
index a9e0e9c5ade..00000000000
--- a/tests/language_2/async_nested/async_nested26_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13 14";
-  Node node = new Node('1', [
-    new Node('2', [
-      await new Future.value(new Node('3', [])),
-    ]),
-    await new Future.value(new Node('4', [
-      await new Future.value(new Node('5', [
-        new Node('6', [
-          new Node('7', []),
-        ]),
-        new Node('8', []),
-        await new Future.value(new Node('9', [])),
-        new Node('10', []),
-        new Node('11', []),
-      ])),
-      await new Future.value(new Node('12', [])),
-      new Node('13', []),
-      new Node('14', []),
-    ])),
-  ]);
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested27_test.dart b/tests/language_2/async_nested/async_nested27_test.dart
deleted file mode 100644
index 2c832cd596f..00000000000
--- a/tests/language_2/async_nested/async_nested27_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16";
-  Node node = new Node('1', [
-    new Node('2', []),
-    await new Future.value(new Node('3', [
-      new Node('4', []),
-      await new Future.value(new Node('5', [
-        new Node('6', []),
-        await new Future.value(new Node('7', [
-          new Node('8', []),
-        ])),
-      ])),
-    ])),
-    await new Future.value(new Node('9', [
-      new Node('10', [
-        new Node('11', []),
-        new Node('12', []),
-        await new Future.value(new Node('13', [])),
-        await new Future.value(new Node('14', [])),
-        await new Future.value(new Node('15', [])),
-        new Node('16', []),
-      ]),
-    ])),
-  ]);
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested28_test.dart b/tests/language_2/async_nested/async_nested28_test.dart
deleted file mode 100644
index c9b4bf4597b..00000000000
--- a/tests/language_2/async_nested/async_nested28_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16";
-  Node node = new Node('1', [
-    await new Future.value(new Node('2', [
-      new Node('3', []),
-      new Node('4', []),
-      new Node('5', [
-        new Node('6', []),
-        await new Future.value(new Node('7', [
-          new Node('8', [
-            new Node('9', []),
-            new Node('10', [
-              new Node('11', [
-                new Node('12', []),
-                new Node('13', []),
-                await new Future.value(new Node('14', [])),
-              ]),
-            ]),
-          ]),
-        ])),
-        new Node('15', []),
-        await new Future.value(new Node('16', [])),
-      ]),
-    ])),
-  ]);
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested29_test.dart b/tests/language_2/async_nested/async_nested29_test.dart
deleted file mode 100644
index b312e4fb0ef..00000000000
--- a/tests/language_2/async_nested/async_nested29_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16";
-  Node node = new Node('1', [
-    await new Future.value(new Node('2', [
-      new Node('3', []),
-      await new Future.value(new Node('4', [])),
-      new Node('5', [
-        new Node('6', []),
-        await new Future.value(new Node('7', [
-          new Node('8', [
-            await new Future.value(new Node('9', [])),
-            await new Future.value(new Node('10', [
-              new Node('11', [
-                new Node('12', [
-                  await new Future.value(new Node('13', [])),
-                ]),
-                new Node('14', []),
-                await new Future.value(new Node('15', [])),
-              ]),
-            ])),
-            await new Future.value(new Node('16', [])),
-          ]),
-        ])),
-      ]),
-    ])),
-  ]);
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested30_test.dart b/tests/language_2/async_nested/async_nested30_test.dart
deleted file mode 100644
index c98b92a2172..00000000000
--- a/tests/language_2/async_nested/async_nested30_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16";
-  Node node = new Node('1', [
-    new Node('2', [
-      new Node('3', []),
-      new Node('4', []),
-      new Node('5', [
-        await new Future.value(new Node('6', [
-          new Node('7', []),
-          new Node('8', [
-            await new Future.value(new Node('9', [])),
-            await new Future.value(new Node('10', [])),
-            await new Future.value(new Node('11', [])),
-          ]),
-          await new Future.value(new Node('12', [])),
-          new Node('13', []),
-        ])),
-        new Node('14', [
-          await new Future.value(new Node('15', [
-            new Node('16', []),
-          ])),
-        ]),
-      ]),
-    ]),
-  ]);
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested31_test.dart b/tests/language_2/async_nested/async_nested31_test.dart
deleted file mode 100644
index ccf6a0d34f1..00000000000
--- a/tests/language_2/async_nested/async_nested31_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16";
-  Node node = new Node('1', [
-    await new Future.value(new Node('2', [])),
-    await new Future.value(new Node('3', [
-      new Node('4', [
-        new Node('5', []),
-        new Node('6', []),
-        await new Future.value(new Node('7', [])),
-        await new Future.value(new Node('8', [
-          new Node('9', []),
-        ])),
-        new Node('10', [
-          new Node('11', [
-            new Node('12', []),
-          ]),
-        ]),
-      ]),
-    ])),
-    await new Future.value(new Node('13', [])),
-    await new Future.value(new Node('14', [])),
-    new Node('15', []),
-    await new Future.value(new Node('16', [])),
-  ]);
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested32_test.dart b/tests/language_2/async_nested/async_nested32_test.dart
deleted file mode 100644
index ca169a229f7..00000000000
--- a/tests/language_2/async_nested/async_nested32_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16";
-  Node node = new Node('1', [
-    new Node('2', [
-      new Node('3', []),
-      new Node('4', []),
-      await new Future.value(new Node('5', [
-        await new Future.value(new Node('6', [
-          await new Future.value(new Node('7', [])),
-          new Node('8', [
-            new Node('9', []),
-            await new Future.value(new Node('10', [])),
-          ]),
-        ])),
-      ])),
-      await new Future.value(new Node('11', [])),
-      new Node('12', [
-        new Node('13', []),
-        await new Future.value(new Node('14', [
-          await new Future.value(new Node('15', [])),
-        ])),
-        new Node('16', []),
-      ]),
-    ]),
-  ]);
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested33_test.dart b/tests/language_2/async_nested/async_nested33_test.dart
deleted file mode 100644
index ce7f5b8f798..00000000000
--- a/tests/language_2/async_nested/async_nested33_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16";
-  Node node = new Node('1', [
-    new Node('2', []),
-    new Node('3', [
-      await new Future.value(new Node('4', [])),
-      new Node('5', [
-        new Node('6', [
-          new Node('7', [
-            await new Future.value(new Node('8', [])),
-            await new Future.value(new Node('9', [
-              await new Future.value(new Node('10', [
-                new Node('11', []),
-              ])),
-              await new Future.value(new Node('12', [])),
-              await new Future.value(new Node('13', [
-                await new Future.value(new Node('14', [])),
-              ])),
-            ])),
-            await new Future.value(new Node('15', [])),
-            new Node('16', []),
-          ]),
-        ]),
-      ]),
-    ]),
-  ]);
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested34_test.dart b/tests/language_2/async_nested/async_nested34_test.dart
deleted file mode 100644
index b510e5bd986..00000000000
--- a/tests/language_2/async_nested/async_nested34_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16";
-  Node node = await new Future.value(new Node('1', [
-    await new Future.value(new Node('2', [
-      new Node('3', []),
-      new Node('4', []),
-      new Node('5', [
-        await new Future.value(new Node('6', [
-          new Node('7', [
-            new Node('8', []),
-            new Node('9', [
-              new Node('10', []),
-              await new Future.value(new Node('11', [])),
-            ]),
-          ]),
-          await new Future.value(new Node('12', [])),
-        ])),
-        new Node('13', [
-          await new Future.value(new Node('14', [])),
-          await new Future.value(new Node('15', [])),
-          new Node('16', []),
-        ]),
-      ]),
-    ])),
-  ]));
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested35_test.dart b/tests/language_2/async_nested/async_nested35_test.dart
deleted file mode 100644
index a94b750972b..00000000000
--- a/tests/language_2/async_nested/async_nested35_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16";
-  Node node = await new Future.value(new Node('1', [
-    new Node('2', []),
-    await new Future.value(new Node('3', [
-      await new Future.value(new Node('4', [])),
-      await new Future.value(new Node('5', [
-        new Node('6', []),
-        new Node('7', []),
-        await new Future.value(new Node('8', [])),
-        await new Future.value(new Node('9', [])),
-      ])),
-      new Node('10', [
-        new Node('11', [
-          new Node('12', [
-            new Node('13', []),
-          ]),
-        ]),
-        new Node('14', [
-          await new Future.value(new Node('15', [])),
-        ]),
-        new Node('16', []),
-      ]),
-    ])),
-  ]));
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested36_test.dart b/tests/language_2/async_nested/async_nested36_test.dart
deleted file mode 100644
index db491d63dce..00000000000
--- a/tests/language_2/async_nested/async_nested36_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15";
-  Node node = await new Future.value(new Node('1', [
-    await new Future.value(new Node('2', [
-      await new Future.value(new Node('3', [])),
-      new Node('4', []),
-      await new Future.value(new Node('5', [
-        new Node('6', [
-          new Node('7', []),
-          await new Future.value(new Node('8', [])),
-        ]),
-        new Node('9', []),
-        await new Future.value(new Node('10', [])),
-      ])),
-      new Node('11', [
-        new Node('12', []),
-      ]),
-      new Node('13', [
-        await new Future.value(new Node('14', [])),
-      ]),
-    ])),
-    await new Future.value(new Node('15', [])),
-  ]));
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested37_test.dart b/tests/language_2/async_nested/async_nested37_test.dart
deleted file mode 100644
index d43ae706dcc..00000000000
--- a/tests/language_2/async_nested/async_nested37_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16";
-  Node node = new Node('1', [
-    new Node('2', []),
-    await new Future.value(new Node('3', [])),
-    new Node('4', [
-      new Node('5', [
-        new Node('6', []),
-        new Node('7', []),
-      ]),
-    ]),
-    await new Future.value(new Node('8', [
-      await new Future.value(new Node('9', [])),
-      await new Future.value(new Node('10', [
-        new Node('11', []),
-        new Node('12', []),
-        await new Future.value(new Node('13', [])),
-      ])),
-    ])),
-    await new Future.value(new Node('14', [])),
-    new Node('15', [
-      new Node('16', []),
-    ]),
-  ]);
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested38_test.dart b/tests/language_2/async_nested/async_nested38_test.dart
deleted file mode 100644
index 8272c1e21b0..00000000000
--- a/tests/language_2/async_nested/async_nested38_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16";
-  Node node = await new Future.value(new Node('1', [
-    new Node('2', []),
-    new Node('3', [
-      new Node('4', []),
-    ]),
-    new Node('5', []),
-    new Node('6', []),
-    await new Future.value(new Node('7', [])),
-    await new Future.value(new Node('8', [
-      await new Future.value(new Node('9', [])),
-      new Node('10', [
-        new Node('11', []),
-        await new Future.value(new Node('12', [])),
-      ]),
-    ])),
-    new Node('13', [
-      new Node('14', []),
-    ]),
-    await new Future.value(new Node('15', [])),
-    await new Future.value(new Node('16', [])),
-  ]));
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested39_test.dart b/tests/language_2/async_nested/async_nested39_test.dart
deleted file mode 100644
index e029484660e..00000000000
--- a/tests/language_2/async_nested/async_nested39_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9";
-  Node node = await new Future.value(new Node('1', [
-    new Node('2', []),
-    await new Future.value(new Node('3', [
-      new Node('4', []),
-      new Node('5', []),
-      await new Future.value(new Node('6', [
-        new Node('7', []),
-      ])),
-    ])),
-    new Node('8', []),
-    await new Future.value(new Node('9', [])),
-  ]));
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested40_test.dart b/tests/language_2/async_nested/async_nested40_test.dart
deleted file mode 100644
index c631f92b1a8..00000000000
--- a/tests/language_2/async_nested/async_nested40_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9";
-  Node node = await new Future.value(new Node('1', [
-    new Node('2', [
-      new Node('3', [
-        new Node('4', []),
-      ]),
-    ]),
-    await new Future.value(new Node('5', [
-      new Node('6', []),
-      new Node('7', []),
-      await new Future.value(new Node('8', [])),
-    ])),
-    await new Future.value(new Node('9', [])),
-  ]));
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_nested/async_nested41_test.dart b/tests/language_2/async_nested/async_nested41_test.dart
deleted file mode 100644
index 105e525e39d..00000000000
--- a/tests/language_2/async_nested/async_nested41_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has been automatically generated by script
-// "async_nested_test_generator.dart".
-
-import 'dart:async';
-
-void main() async {
-  String expected = "1 2 3 4 5 6 7 8 9";
-  Node node = new Node('1', [
-    await new Future.value(new Node('2', [])),
-    await new Future.value(new Node('3', [
-      new Node('4', []),
-      await new Future.value(new Node('5', [
-        new Node('6', []),
-      ])),
-      await new Future.value(new Node('7', [])),
-      new Node('8', []),
-    ])),
-    await new Future.value(new Node('9', [])),
-  ]);
-  String actual = node.toSimpleString();
-  print(actual);
-  if (actual != expected) {
-    throw "Expected '$expected' but got '$actual'";
-  }
-}
-
-class Node {
-  final List<Node> nested;
-  final String name;
-
-  Node(this.name, [this.nested]) {}
-
-  String toString() => '<$name:[${nested?.join(', ')}]>';
-
-  toSimpleString() {
-    var tmp = nested?.map((child) => child.toSimpleString());
-    return '$name ${tmp?.join(' ')}'.trim();
-  }
-}
diff --git a/tests/language_2/async_star/async_star2_regression_test.dart b/tests/language_2/async_star/async_star2_regression_test.dart
deleted file mode 100644
index 07e8e44985f..00000000000
--- a/tests/language_2/async_star/async_star2_regression_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library async_start_test;
-
-import "dart:async";
-
-import "package:expect/expect.dart";
-
-void main() async {
-  var results = [];
-
-  f() async* {
-    yield 0;
-    yield 1;
-    yield 2;
-  }
-
-  //Broken, the value 1 was lost.
-  await for (var i in f()) {
-    results.add(i);
-    if (i == 0) {
-      // This should pause the stream subscription.
-      await Future.delayed(Duration(milliseconds: 500));
-    }
-  }
-
-  Expect.listEquals([0, 1, 2], results);
-}
diff --git a/tests/language_2/async_star/async_star_await_for_test.dart b/tests/language_2/async_star/async_star_await_for_test.dart
deleted file mode 100644
index 030be3e4236..00000000000
--- a/tests/language_2/async_star/async_star_await_for_test.dart
+++ /dev/null
@@ -1,378 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that `await for` and `async*` interact correctly.
-
-// An `await for` must pause its subscription immediately
-// if the `await for` body does anything asynchronous
-// (any `await`, `await for`, or pausing at a `yield`/`yield*`)
-// A pause happening synchronously in an event delivery
-// must pause the `sync*` method at the `yield` sending the event.
-// A break happening synchronously in an event delivery,
-// or while paused at a `yield`, must exit at that `yield`.
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-Stream<int> stream(List<String> log) async* {
-  log.add("^");
-  try {
-    log.add("?1");
-    yield 1;
-    log.add("?2");
-    yield 2;
-    log.add("?3");
-    yield 3;
-  } finally {
-    log.add(r"$");
-  }
-}
-
-Stream<int> consume(List<String> log,
-    {int breakAt = -1,
-    int yieldAt = -1,
-    int yieldStarAt = -1,
-    int pauseAt = -1}) async* {
-  // Create stream.
-  var s = stream(log);
-  log.add("(");
-  // The "consume loop".
-  await for (var event in s) {
-    // Should be acting synchronously wrt. the delivery of the event.
-    // The source stream should be at the yield now.
-    log.add("!$event");
-    if (event == pauseAt) {
-      log.add("p$event[");
-      // Async operation causes subscription to pause.
-      // Nothing should happen in the source stream
-      // until the end of the loop body where the subscription is resumed.
-      await Future.delayed(Duration(microseconds: 1));
-      log.add("]");
-    }
-    if (event == yieldAt) {
-      log.add("y$event[");
-      // Yield may cause subscription to pause or cancel.
-      // This loop should stay at the yield until the event has been delivered.
-      // If the receiver pauses or cancels, we delay or break the loop here.
-      yield event;
-      log.add("]");
-    }
-    if (event == yieldStarAt) {
-      log.add("Y$event[");
-      // Yield* will always cause the subscription for this loop to pause.
-      // If the listener pauses, this stream is paused. If the listener cancels,
-      // this stream is cancelled, and the yield* acts like return, cancelling
-      // the loop subscription and waiting for the cancel future.
-      yield* Stream<int>.fromIterable([event]);
-      log.add("]");
-    }
-    if (event == breakAt) {
-      log.add("b$event");
-      // Breaks the loop. This cancels the loop subscription and waits for the
-      // cancel future.
-      break;
-    }
-  }
-  // Done event from stream or cancel future has completed.
-  log.add(")");
-}
-
-main() async {
-  asyncStart();
-
-  // Just run the loop over the stream. The consume stream emits no events.
-  {
-    var log = <String>[];
-    await for (var _ in consume(log)) {
-      throw "unreachable";
-    }
-    await Future.delayed(Duration(milliseconds: 1));
-    var trace = log.join("");
-    Expects.equals(r"(^?1!1?2!2?3!3$)", trace, "straight through");
-  }
-
-  // Pause at 1, then resume.
-  // Consume loop forces a pause when it receives the 1 event.
-  // Nothing should happen until that pause is resumed.
-  {
-    var log = <String>[];
-    await for (var _ in consume(log, pauseAt: 1)) {
-      throw "unreachable";
-    }
-    await Future.delayed(Duration(milliseconds: 10));
-    var trace = log.join("");
-    String message = "pause at 1";
-    if (trace.contains("p1[?2")) {
-      message += " (did not pause in time)";
-    }
-    Expects.equals(r"(^?1!1p1[]?2!2?3!3$)", trace, message);
-  }
-
-  // Break at 1.
-  // Consume loop breaks after receiving the 1 event.
-  // The consume stream emits no events.
-  {
-    var log = <String>[];
-    await for (var _ in consume(log, breakAt: 1)) {
-      throw "unreachable";
-    }
-    await Future.delayed(Duration(milliseconds: 10));
-    var trace = log.join("");
-    String message = "break at 1";
-    if (trace.contains("b1?2")) {
-      message += " (did not cancel in time)";
-    }
-    Expects.equals(r"(^?1!1b1$)", trace, message);
-  }
-
-  // Pause then break at 1.
-  // Consume loop pauses after receiving the 1 event,
-  // then breaks before resuming. It should still be at the yield.
-  // The consume stream emits no events.
-  {
-    var log = <String>[];
-    await for (var _ in consume(log, pauseAt: 1, breakAt: 1)) {
-      throw "unreachable";
-    }
-    await Future.delayed(Duration(milliseconds: 10));
-    var trace = log.join("");
-    String message = "pause then break at 1";
-    if (trace.contains("p1[?2")) {
-      message += " (did not pause in time)";
-    }
-    if (trace.contains("b1?2")) {
-      message += " (did not cancel in time)";
-    }
-    Expects.equals(r"(^?1!1p1[]b1$)", trace, message);
-  }
-
-  // Yield at 1.
-  // The consume loop re-emits the 1 event.
-  // The test loop should receive that event while the consume loop is still
-  // at the yield statement.
-  // The consume loop may or may not pause, it should make no difference.
-  {
-    var log = <String>[];
-    await for (var s in consume(log, yieldAt: 1)) {
-      log.add("e$s");
-    }
-    await Future.delayed(Duration(milliseconds: 10));
-    var trace = log.join("");
-    String message = "yield at 1";
-    if (trace.contains("y1[?2")) {
-      message += " (did not wait for delivery)";
-    }
-    Expects.equals(r"(^?1!1y1[e1]?2!2?3!3$)", trace, message);
-  }
-
-  // Yield at 1, then pause at yield.
-  // The consume loop re-emits the 1 event.
-  // The test loop should receive that event while the consume loop is still
-  // at the yield statement.
-  // The test loop then pauses.
-  // Nothing should happen in either the original yield
-  // or the consume-function yield until the test loop ends.
-  {
-    var log = <String>[];
-    await for (var s in consume(log, yieldAt: 1)) {
-      log.add("e$s<");
-      // Force pause at yield.
-      await Future.delayed(Duration(milliseconds: 1));
-      log.add(">");
-    }
-    await Future.delayed(Duration(milliseconds: 10));
-    var trace = log.join("");
-    String message = "yield at 1, pause at yield";
-    if (trace.contains("y1[?2")) {
-      message += " (did not wait for delivery)";
-    }
-    if (trace.contains("e1<?2")) {
-      message += " (did not pause in time)";
-    }
-    Expects.equals(r"(^?1!1y1[e1<>]?2!2?3!3$)", trace, message);
-  }
-
-  // Yield at 1, then break at yield.
-  // The consume loop re-emits the 1 event.
-  // The test loop should receive that event while the consume loop is still
-  // at the yield statement.
-  // The test loop then breaks. That makes the consume loop yield return,
-  // breaking the consume loop, which makes the source yield return.
-  {
-    var log = <String>[];
-    await for (var s in consume(log, yieldAt: 1)) {
-      log.add("e${s}B$s");
-      break; // Force break at yield*.
-    }
-    await Future.delayed(Duration(milliseconds: 10));
-    var trace = log.join("");
-    String message = "yield at 1, break at yield";
-    if (trace.contains("y1[?2")) {
-      message += " (did not wait for delivery)";
-    }
-    if (trace.contains("B1?2")) {
-      message += " (did not break in time)";
-    }
-    Expects.equals(r"(^?1!1y1[e1B1$", trace, message);
-  }
-
-  // Yield* at 1.
-  // The consume loop re-emits a stream containing the 1 event.
-  // The test loop should receive that event before the consume loop
-  // continues from the `yield*`, which again happens before the source
-  // stream continues from its `yield`.
-  {
-    var log = <String>[];
-    await for (var s in consume(log, yieldStarAt: 1)) {
-      log.add("e$s");
-    }
-    await Future.delayed(Duration(milliseconds: 10));
-    var trace = log.join("");
-    String message = "yield* at 1";
-    if (trace.contains("Y1[?2")) {
-      message += " (did not wait for delivery)";
-    }
-    Expects.equals(r"(^?1!1Y1[e1]?2!2?3!3$)", trace, message);
-  }
-
-  // Yield* at 1, pause at yield.
-  // The consume loop re-emits a stream containing the 1 event.
-  // The test loop should receive that event before the consume loop
-  // continues from the `yield*`. The test loop then force a pause.
-  // Nothing further should happen during that pause.
-  {
-    var log = <String>[];
-    await for (var s in consume(log, yieldStarAt: 1)) {
-      log.add("e$s<");
-      await Future.delayed(Duration(milliseconds: 1)); // force pause.
-      log.add(">");
-    }
-    await Future.delayed(Duration(milliseconds: 10));
-    var trace = log.join("");
-    String message = "yield* then pause at 1";
-    if (trace.contains("Y1[?2")) {
-      message += " (did not wait for delivery)";
-    }
-    if (trace.contains("e1<?2")) {
-      message += " (did not pause in time)";
-    }
-    Expects.equals(r"(^?1!1Y1[e1<>]?2!2?3!3$)", trace, message);
-  }
-
-  // Yield* at 1, then break at 1.
-  // The consume loop re-emits a stream containing the 1 event.
-  // The test loop should receive that event before the consume loop
-  // continues from the `yield*`.
-  // When the consume loop continues, it breaks,
-  // forcing the waiting source yield to return.
-  {
-    var log = <String>[];
-    await for (var s in consume(log, yieldStarAt: 1, breakAt: 1)) {
-      log.add("e$s");
-    }
-    await Future.delayed(Duration(milliseconds: 10));
-    var trace = log.join("");
-    String message = "yield* then pause at 1";
-    if (trace.contains("Y1[?2")) {
-      message += " (did not wait for delivery)";
-    }
-    Expects.equals(r"(^?1!1Y1[e1]b1$)", trace, message);
-  }
-
-  // Yield* at 1, pause at yield, then break at 1.
-  // The consume loop re-emits a stream containing the 1 event.
-  // The test loop should receive that event before the consume loop
-  // continues from the `yield*`. After the `yield*`, the consume loop breaks.
-  // This forces the waiting source yield to return.
-  {
-    var log = <String>[];
-    await for (var s in consume(log, yieldStarAt: 1, breakAt: 1)) {
-      log.add("e$s<");
-      await Future.delayed(Duration(milliseconds: 1)); // force pause.
-      log.add(">");
-    }
-    await Future.delayed(Duration(milliseconds: 10));
-    var trace = log.join("");
-    String message = "yield* then pause at 1";
-    Expects.equals(r"(^?1!1Y1[e1<>]b1$)", trace, message);
-  }
-
-  // Yield* at 1, break at yield.
-  // The consume loop re-emits a stream containing the 1 event.
-  // The test loop should receive that event before the consume loop
-  // continues from the `yield*`. The test loop then breaks,
-  // forcing the two waiting yields to return.
-  {
-    var log = <String>[];
-    await for (var s in consume(log, yieldStarAt: 1)) {
-      log.add("e${s}B$s");
-      break;
-    }
-    await Future.delayed(Duration(milliseconds: 10));
-    var trace = log.join("");
-    String message = "yield* then break at 1";
-    if (trace.contains("Y1[?2")) {
-      message += " (did not deliver event in time)";
-    }
-    if (trace.contains("e1?2")) {
-      message += " (did not cancel in time)";
-    }
-    Expects.equals(r"(^?1!1Y1[e1B1$", trace, message);
-  }
-
-  // Yield* at 1, pause at yield, then break at yield.
-  // The consume loop re-emits a stream containing the 1 event.
-  // The test loop should receive that event before the consume loop
-  // continues from the `yield*`. The test loop then forces a pause,
-  // and then breaks before that pause is resumed.
-  // This forces the two waiting yields to return.
-  {
-    var log = <String>[];
-    await for (var s in consume(log, yieldStarAt: 1)) {
-      log.add("e$s<");
-      await Future.delayed(Duration(milliseconds: 1)); // force pause.
-      log.add(">B$s");
-      break; // And break.
-    }
-    await Future.delayed(Duration(milliseconds: 10));
-    var trace = log.join("");
-    String message = "yield* then pause then break at 1";
-    Expects.equals(r"(^?1!1Y1[e1<>B1$", trace, message);
-  }
-
-  Expects.summarize();
-  asyncEnd();
-}
-
-class Expects {
-  static var _errors = [];
-  static int _tests = 0;
-  static void summarize() {
-    if (_errors.isNotEmpty) {
-      var buffer = StringBuffer();
-      for (var es in _errors) {
-        buffer.writeln("FAILURE:");
-        buffer.writeln(es[0]); // error
-        buffer.writeln(es[1]); // stack trace
-      }
-      ;
-      buffer.writeln("Expectations failed: ${_errors.length}"
-          ", succeeded: ${_tests - _errors.length}");
-      throw ExpectException(buffer.toString());
-    }
-  }
-
-  static void equals(o1, o2, String message) {
-    _tests++;
-    try {
-      Expect.equals(o1, o2, message);
-    } on ExpectException catch (e) {
-      var stack = StackTrace.current;
-      _errors.add([e, stack]);
-    }
-  }
-}
diff --git a/tests/language_2/async_star/async_star_cancel_test.dart b/tests/language_2/async_star/async_star_cancel_test.dart
deleted file mode 100644
index 80f716c4aef..00000000000
--- a/tests/language_2/async_star/async_star_cancel_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that stream cancellation is checked immediately after delivering the
-// event, and before continuing after the yield.
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-main() async {
-  asyncStart();
-  var log = [];
-  Stream<int> f() async* {
-    try {
-      log.add("-1");
-      yield 1;
-      log.add("-2");
-      yield 2;
-    } finally {
-      log.add("x");
-    }
-  }
-
-  var completer = Completer();
-  var s;
-  s = f().listen((e) {
-    log.add("+$e");
-    // The `cancel` operation makes all `yield` operations act as returns.
-    // It should make the `finally` block in `f` log an "x",
-    // and nothing else.
-    completer.complete(s.cancel());
-  }, onError: (e) {
-    // Should never be reached, but if it does, we'll make the await
-    // below terminate.
-    completer.complete(new Future.sync(() {
-      Expect.fail("$e");
-    }));
-  }, onDone: () {
-    completer.complete(null);
-  });
-  await completer.future;
-  Expect.listEquals(["-1", "+1", "x"], log, "cancel");
-  asyncEnd();
-}
diff --git a/tests/language_2/async_star/async_star_invalid_test.dart b/tests/language_2/async_star/async_star_invalid_test.dart
deleted file mode 100644
index c4d3123eafb..00000000000
--- a/tests/language_2/async_star/async_star_invalid_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that various invalid uses of `yield` are disallowed.
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-var yield = 42;
-
-main() async {
-  asyncStart();
-  Stream<String> f() async* {
-    // Invalid syntax.
-    yield ("a", "b"); //# 01: syntax error
-    yield yield "twice"; //# 02: syntax error
-
-    // Valid but curious syntax.
-    yield throw "throw"; //# 03: runtime error
-
-    // Type error.
-    yield* "one"; //# 04: compile-time error
-
-    label: yield "ok";
-  }
-  var completer = Completer();
-  f().listen(completer.complete, onError: completer.completeError,
-      onDone: () {
-        if (!completer.isCompleted) completer.completeError("not ok?");
-      });
-  Expect.equals("ok", await completer.future);
-  asyncEnd();
-}
diff --git a/tests/language_2/async_star/async_star_test.dart b/tests/language_2/async_star/async_star_test.dart
deleted file mode 100644
index 28d9b7fc0f0..00000000000
--- a/tests/language_2/async_star/async_star_test.dart
+++ /dev/null
@@ -1,197 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-main() async {
-  asyncStart();
-  // Normal operations.
-  {
-    Stream<int> f() async* {
-      yield 1;
-      yield 2;
-      yield 3;
-    }
-
-    Expect.listEquals([1, 2, 3], await f().toList(), "basic1");
-  }
-
-  {
-    Stream<int> f() async* {
-      yield 1;
-      yield 2;
-      yield 3;
-    }
-
-    var log = [];
-    var completer = Completer();
-    f().listen(log.add,
-        onError: (e) {
-          // Shouldn't be reached.
-          completer.complete(new Future.sync(() {
-            Expect.fail("$e");
-          }));
-        },
-        onDone: () => completer.complete(null));
-    await completer.future;
-    Expect.listEquals([1, 2, 3], log, "basic2");
-  }
-
-  {
-    var log = [];
-    Stream<int> f() async* {
-      log.add("-1");
-      yield 1;
-      log.add("-2");
-      yield 2;
-    }
-
-    await f().forEach((e) {
-      log.add("+$e");
-    });
-    Expect.listEquals(["-1", "+1", "-2", "+2"], log, "basic3");
-  }
-
-  {
-    var log = [];
-    Stream<int> f() async* {
-      log.add("-1");
-      yield 1;
-      log.add("-2");
-      yield 2;
-    }
-
-    await for (var e in f()) {
-      log.add("+$e");
-    }
-    Expect.listEquals(["-1", "+1", "-2", "+2"], log, "basic4");
-  }
-
-  // async
-  {
-    Stream<int> f() async* {
-      yield 1;
-      await Future(() {});
-      yield 2;
-      await Future(() {});
-      yield 3;
-    }
-
-    Expect.listEquals([1, 2, 3], await f().toList(), "async");
-  }
-
-  // Yield*
-  {
-    Stream<int> f(n) async* {
-      yield n;
-      if (n == 0) return;
-      yield* f(n - 1);
-      yield n;
-    }
-
-    Expect.listEquals([3, 2, 1, 0, 1, 2, 3], await f(3).toList(), "yield*");
-  }
-
-  // Errors
-  {
-    var log = [];
-    Stream<int> f() async* {
-      yield 1;
-      throw "error";
-    }
-
-    await f().handleError((e) {
-      log.add(e);
-    }).forEach(log.add);
-    Expect.listEquals([1, "error"], log, "error");
-  }
-
-  {
-    var log = [];
-    Stream<int> f() async* {
-      yield 1;
-      yield* Future<int>.error("error").asStream(); // Emits error as error.
-      yield 3;
-    }
-
-    await f().handleError((e) {
-      log.add(e);
-    }).forEach(log.add);
-    Expect.listEquals([1, "error", 3], log, "error2");
-  }
-
-  // Pause is checked after delivering event.
-  {
-    var log = [];
-    Stream<int> f() async* {
-      log.add("-1");
-      yield 1;
-      log.add("-2");
-      yield 2;
-    }
-
-    var completer = Completer();
-    var s;
-    s = f().listen((e) {
-      log.add("+$e");
-      s.pause(Future(() {}));
-      log.add("++$e");
-    }, onError: (e) {
-      completer.complete(new Future.sync(() {
-        Expect.fail("$e");
-      }));
-    }, onDone: () => completer.complete(null));
-    await completer.future;
-    Expect.listEquals(["-1", "+1", "++1", "-2", "+2", "++2"], log, "pause");
-  }
-
-  // Await for-loop pauses between events.
-  {
-    var log = [];
-    Stream<int> f() async* {
-      log.add("-1");
-      yield 1;
-      log.add("-2");
-      yield 2;
-    }
-
-    await for (var e in f()) {
-      log.add("+$e");
-      await Future(() {}); // One timer tick.
-      log.add("++$e");
-    }
-    Expect.listEquals(["-1", "+1", "++1", "-2", "+2", "++2"], log, "looppause");
-  }
-
-  // Await for-loop break works immediately.
-  {
-    var log = [];
-    Stream<int> f() async* {
-      try {
-        log.add("-1");
-        yield 1;
-        log.add("-2");
-        yield 2;
-        log.add("-3");
-        yield 3;
-      } finally {
-        log.add("x");
-      }
-    }
-
-    await for (var e in f()) {
-      log.add("+$e");
-      await Future(() {}); // One timer tick, pauses function at yield.
-      log.add("++$e");
-      if (e == 2) break;
-    }
-    Expect.listEquals(
-        ["-1", "+1", "++1", "-2", "+2", "++2", "x"], log, "loop-pause-break");
-  }
-  asyncEnd();
-}
diff --git a/tests/language_2/async_star/await_for_test.dart b/tests/language_2/async_star/await_for_test.dart
deleted file mode 100644
index cef97c1d984..00000000000
--- a/tests/language_2/async_star/await_for_test.dart
+++ /dev/null
@@ -1,150 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-import 'package:async_helper/async_minitest.dart';
-
-import 'utils.dart';
-
-main() {
-  test('simple stream', () {
-    f(s) async {
-      var r = 0;
-      await for (var v in s) r += v;
-      return r;
-    }
-
-    return f(mkStream(5)).then((v) {
-      expect(v, equals(10));
-    });
-  });
-
-  test('simple stream, await', () {
-    f(s) async {
-      var r = 0;
-      await for (var v in s) r += await Future.microtask(() => v);
-      return r;
-    }
-
-    return f(mkStream(5)).then((v) {
-      expect(v, equals(10));
-    });
-  });
-
-  test('simple stream - take', () {
-    f(s) async {
-      var r = 0;
-      await for (var v in s.take(5)) r += v;
-      return r;
-    }
-
-    return f(mkStream(10)).then((v) {
-      expect(v, equals(10));
-    });
-  });
-
-  test('simple stream reyield', () {
-    f(s) async* {
-      var r = 0;
-      await for (var v in s) yield r += v;
-    }
-
-    return expectList(f(mkStream(5)), [0, 1, 3, 6, 10]);
-  });
-
-  test('simple stream, await, reyield', () {
-    f(s) async* {
-      var r = 0;
-      await for (var v in s) yield r += await Future.microtask(() => v);
-    }
-
-    return expectList(f(mkStream(5)), [0, 1, 3, 6, 10]);
-  });
-
-  test('simple stream - take, reyield', () {
-    f(s) async* {
-      var r = 0;
-      await for (var v in s.take(5)) yield r += v;
-    }
-
-    return expectList(f(mkStream(10)), [0, 1, 3, 6, 10]);
-  });
-
-  test('nested', () {
-    f() async {
-      var r = 0;
-      await for (var i in mkStream(5)) {
-        await for (var j in mkStream(3)) {
-          r += i * j;
-        }
-      }
-      return r;
-    }
-
-    return f().then((v) {
-      expect(v, equals((1 + 2 + 3 + 4) * (1 + 2)));
-    });
-  });
-
-  test('nested, await', () {
-    f() async {
-      var r = 0;
-      await for (var i in mkStream(5)) {
-        await for (var j in mkStream(3)) {
-          r += await Future.microtask(() => i * j);
-        }
-      }
-      return r;
-    }
-
-    return f().then((v) {
-      expect(v, equals((1 + 2 + 3 + 4) * (1 + 2)));
-    });
-  });
-
-  test('nested, await * 2', () {
-    f() async {
-      var r = 0;
-      await for (var i in mkStream(5)) {
-        var ai = await Future.microtask(() => i);
-        await for (var j in mkStream(3)) {
-          r += await Future.microtask(() => ai * j);
-        }
-      }
-      return r;
-    }
-
-    return f().then((v) {
-      expect(v, equals((1 + 2 + 3 + 4) * (1 + 2)));
-    });
-  });
-
-  test('await pauses loop', () {
-    var sc;
-    var i = 0;
-    void send() {
-      if (i == 5) {
-        sc.close();
-      } else {
-        sc.add(i++);
-      }
-    }
-
-    sc = StreamController(onListen: send, onResume: send);
-    f(s) async {
-      var r = 0;
-      await for (var i in s) {
-        r += await Future.delayed(ms * 10, () => i);
-      }
-      return r;
-    }
-
-    return f(sc.stream).then((v) {
-      expect(v, equals(10));
-    });
-  });
-}
diff --git a/tests/language_2/async_star/await_pauses_test.dart b/tests/language_2/async_star/await_pauses_test.dart
deleted file mode 100644
index cde8a0a21fe..00000000000
--- a/tests/language_2/async_star/await_pauses_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-main() {
-  var sc;
-  var i = 0;
-  void send() {
-    if (i == 5) {
-      sc.close();
-    } else {
-      sc.add(i++);
-    }
-  }
-
-  sc = new StreamController(onListen: send, onResume: send);
-
-  f(s) async {
-    var r = 0;
-    await for (var i in s) {
-      r += await new Future.delayed(new Duration(milliseconds: 10), () => i);
-    }
-    return r;
-  }
-
-  asyncStart();
-  f(sc.stream).then((v) {
-    Expect.equals(10, v);
-    asyncEnd();
-  });
-}
diff --git a/tests/language_2/async_star/basic_test.dart b/tests/language_2/async_star/basic_test.dart
deleted file mode 100644
index 92f437dd102..00000000000
--- a/tests/language_2/async_star/basic_test.dart
+++ /dev/null
@@ -1,155 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-import 'package:async_helper/async_minitest.dart';
-
-import 'utils.dart';
-
-class NotAStream {
-  listen(oData, {onError, onDone, cancelOnError}) {
-    fail('Not implementing Stream.');
-  }
-}
-
-StreamTransformer getErrors =
-    StreamTransformer.fromHandlers(handleData: (data, sink) {
-  fail('Unexpected value');
-}, handleError: (e, s, sink) {
-  sink.add(e);
-}, handleDone: (sink) {
-  sink.close();
-});
-
-// Obscuring identity function.
-id(x) {
-  try {
-    if (x != null) throw x;
-  } catch (e) {
-    return e;
-  }
-  return null;
-}
-
-main() {
-  test('empty', () {
-    f() async* {}
-    return f().toList().then((v) {
-      expect(v, equals([]));
-    });
-  });
-
-  test('single', () {
-    f() async* {
-      yield 42;
-    }
-
-    return f().toList().then((v) {
-      expect(v, equals([42]));
-    });
-  });
-
-  test('call delays', () {
-    var list = [];
-    f() async* {
-      list.add(1);
-      yield 2;
-    }
-
-    var res = f().forEach(list.add);
-    list.add(0);
-    return res.whenComplete(() {
-      expect(list, equals([0, 1, 2]));
-    });
-  });
-
-  test('throws', () {
-    f() async* {
-      yield 1;
-      throw 2;
-    }
-
-    var completer = Completer();
-    var list = [];
-    f().listen(list.add,
-        onError: (v) => list.add('$v'), onDone: completer.complete);
-    return completer.future.whenComplete(() {
-      expect(list, equals([1, '2']));
-    });
-  });
-
-  test('multiple', () {
-    f() async* {
-      for (int i = 0; i < 10; i++) {
-        yield i;
-      }
-    }
-
-    return expectList(f(), List.generate(10, id));
-  });
-
-  test('allows await', () {
-    f() async* {
-      var x = await Future.value(42);
-      yield x;
-      x = await Future.value(42);
-    }
-
-    return expectList(f(), [42]);
-  });
-
-  test('allows await in loop', () {
-    f() async* {
-      for (int i = 0; i < 10; i++) {
-        yield await i;
-      }
-    }
-
-    return expectList(f(), List.generate(10, id));
-  });
-
-  test('allows yield*', () {
-    f() async* {
-      yield* Stream.fromIterable([1, 2, 3]);
-    }
-
-    return expectList(f(), [1, 2, 3]);
-  });
-
-  test('allows yield* of async*', () {
-    f(n) async* {
-      yield n;
-      if (n == 0) return;
-      yield* f(n - 1);
-      yield n;
-    }
-
-    return expectList(f(3), [3, 2, 1, 0, 1, 2, 3]);
-  });
-
-  test('Cannot yield* non-stream', () {
-    f(Object s) async* {
-      yield* s;
-    }
-
-    return f(42).transform(getErrors).single.then((v) {
-      // Not implementing Stream.
-      expect(v is Error, isTrue);
-    });
-  });
-
-  test('Cannot yield* non-stream 2', () {
-    f(Object s) async* {
-      yield* s;
-    }
-
-    return f(NotAStream()).transform(getErrors).single.then((v) {
-      // Not implementing Stream.
-      expect(v is Error, isTrue);
-    });
-  });
-}
diff --git a/tests/language_2/async_star/cancel_and_throw_in_finally_test.dart b/tests/language_2/async_star/cancel_and_throw_in_finally_test.dart
deleted file mode 100644
index 7773af7a684..00000000000
--- a/tests/language_2/async_star/cancel_and_throw_in_finally_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-// When an exception is thrown in the finally block cleaning up after a cancel,
-// the future returned from cancel should complete with an error.
-
-foo() async* {
-  try {
-    int i = 0;
-    while (true) {
-      yield i++;
-    }
-  } finally {
-    throw "Error";
-  }
-}
-
-test() async {
-  var completer = new Completer();
-  var s;
-  s = foo().listen((e) async {
-    Expect.equals(0, e);
-    try {
-      await s.cancel();
-      Expect.fail("Did not throw");
-    } catch (e) {
-      Expect.equals("Error", e);
-      completer.complete();
-    }
-  });
-  await completer.future;
-}
-
-main() {
-  asyncStart();
-  test().then((_) => asyncEnd());
-}
diff --git a/tests/language_2/async_star/cancel_test.dart b/tests/language_2/async_star/cancel_test.dart
deleted file mode 100644
index 1c01a34c33c..00000000000
--- a/tests/language_2/async_star/cancel_test.dart
+++ /dev/null
@@ -1,144 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-import 'package:async_helper/async_minitest.dart';
-
-import 'utils.dart';
-
-main() {
-  // Stream.take(n) automatically cancels after seeing the n'th value.
-  test('cancels at yield', () {
-    Completer exits = Completer();
-    var list = [];
-    f() async* {
-      try {
-        list.add(0);
-        list.add(1);
-        yield null;
-        list.add(2);
-      } finally {
-        exits.complete(3);
-      }
-    }
-
-    // No events must be fired synchronously in response to a listen.
-    var subscription = f().listen((v) {
-      fail('Received event $v');
-    }, onDone: () {
-      fail('Received done');
-    });
-    // No events must be delivered after a cancel.
-    subscription.cancel();
-    return exits.future.then((v) {
-      expect(v, equals(3));
-      expect(list, equals([0, 1]));
-    });
-  });
-
-  test('does cancel eventually', () {
-    var exits = Completer();
-    var list = [];
-    f() async* {
-      int i = 0;
-      try {
-        while (true) yield i++;
-      } finally {
-        list.add('a');
-        exits.complete(i);
-      }
-    }
-
-    return expectList(f().take(5), [0, 1, 2, 3, 4])
-        .then((_) => exits.future)
-        .then((v) {
-      expect(v, greaterThan(4));
-      expect(list, ['a']);
-    });
-  });
-
-  group('at index', () {
-    f() async* {
-      try {
-        yield await Future.microtask(() => 1);
-      } finally {
-        try {
-          yield await Future.microtask(() => 2);
-        } finally {
-          yield await Future.microtask(() => 3);
-        }
-      }
-    }
-
-    test('- all, sanity check', () {
-      return expectList(f(), [1, 2, 3]);
-    });
-    test('after end', () {
-      return expectList(f().take(4), [1, 2, 3]);
-    });
-    test('at end', () {
-      return expectList(f().take(3), [1, 2, 3]);
-    });
-    test('before end', () {
-      return expectList(f().take(2), [1, 2]);
-    });
-    test('early', () {
-      return expectList(f().take(1), [1]);
-    });
-    test('at start', () {
-      return expectList(f().take(0), []);
-    });
-  });
-
-  test('regression-fugl/fisk', () {
-    var res = [];
-    fisk() async* {
-      res.add('+fisk');
-      try {
-        for (int i = 0; i < 2; i++) {
-          yield await Future.microtask(() => i);
-        }
-      } finally {
-        res.add('-fisk');
-      }
-    }
-
-    fugl(int count) async {
-      res.add('fisk $count');
-      try {
-        await for (int i in fisk().take(count)) res.add(i);
-      } finally {
-        res.add('done');
-      }
-    }
-
-    return fugl(3)
-        .whenComplete(() => fugl(2))
-        .whenComplete(() => fugl(1))
-        .whenComplete(() {
-      expect(res, [
-        'fisk 3',
-        '+fisk',
-        0,
-        1,
-        '-fisk',
-        'done',
-        'fisk 2',
-        '+fisk',
-        0,
-        1,
-        '-fisk',
-        'done',
-        'fisk 1',
-        '+fisk',
-        0,
-        '-fisk',
-        'done',
-      ]);
-    });
-  });
-}
diff --git a/tests/language_2/async_star/cancel_while_paused_at_yield_test.dart b/tests/language_2/async_star/cancel_while_paused_at_yield_test.dart
deleted file mode 100644
index d2c8abb0d65..00000000000
--- a/tests/language_2/async_star/cancel_while_paused_at_yield_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-import 'package:async_helper/async_minitest.dart';
-
-import 'utils.dart';
-
-main() {
-  test('canceling while paused at yield', () {
-    var list = [];
-    var sync = Sync();
-    f() async* {
-      list.add('*1');
-      yield 1;
-      await sync.wait();
-      sync.release();
-      list.add('*2');
-      yield 2;
-      list.add('*3');
-    }
-
-    var stream = f();
-    // TODO(jmesserly): added workaround for:
-    // https://github.com/dart-lang/dev_compiler/issues/269
-    var sub = stream.listen((x) => list.add(x));
-    return sync.wait().whenComplete(() {
-      expect(list, equals(['*1', 1]));
-      sub.pause();
-      return sync.wait();
-    }).whenComplete(() {
-      expect(list, equals(['*1', 1, '*2']));
-      sub.cancel();
-      return Future.delayed(ms * 200, () {
-        // Should not have yielded 2 or added *3 while paused.
-        expect(list, equals(['*1', 1, '*2']));
-      });
-    });
-  });
-}
diff --git a/tests/language_2/async_star/cancel_while_paused_test.dart b/tests/language_2/async_star/cancel_while_paused_test.dart
deleted file mode 100644
index ec9040a33c9..00000000000
--- a/tests/language_2/async_star/cancel_while_paused_test.dart
+++ /dev/null
@@ -1,70 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This is a regression test for issue 22853.
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-main() {
-  var list = [];
-  var sync = new Sync();
-  f() async* {
-    list.add("*1");
-    yield 1;
-    await sync.wait();
-    sync.release();
-    list.add("*2");
-    yield 2;
-    list.add("*3");
-  }
-
-  ;
-  var stream = f();
-  var sub = stream.listen(list.add);
-
-  asyncStart();
-  return sync.wait().whenComplete(() {
-    Expect.listEquals(["*1", 1], list);
-    sub.pause();
-    return sync.wait();
-  }).whenComplete(() {
-    Expect.listEquals(["*1", 1, "*2"], list);
-    sub.cancel();
-    new Future.delayed(new Duration(milliseconds: 200), () {
-      // Should not have yielded 2 or added *3 while paused.
-      Expect.listEquals(["*1", 1, "*2"], list);
-      asyncEnd();
-    });
-  });
-}
-
-/**
- * Allows two asynchronous executions to synchronize.
- *
- * Calling [wait] and waiting for the returned future to complete will
- * wait for the other executions to call [wait] again. At that point,
- * the waiting execution is allowed to continue (the returned future completes),
- * and the more recent call to [wait] is now the waiting execution.
- */
-class Sync {
-  Completer _completer = null;
-  // Release whoever is currently waiting and start waiting yourself.
-  Future wait([v]) {
-    if (_completer != null) _completer.complete(v);
-    _completer = new Completer();
-    return _completer.future;
-  }
-
-  // Release whoever is currently waiting.
-  void release([v]) {
-    if (_completer != null) {
-      _completer.complete(v);
-      _completer = null;
-    }
-  }
-}
diff --git a/tests/language_2/async_star/concat_test.dart b/tests/language_2/async_star/concat_test.dart
deleted file mode 100644
index 793f8b3f2ce..00000000000
--- a/tests/language_2/async_star/concat_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-range(start, end) async* {
-  for (int i = start; i < end; i++) {
-    yield i;
-  }
-}
-
-concat(a, b) async* {
-  yield* a;
-  yield* b;
-}
-
-test() async {
-  Expect.listEquals(
-      [1, 2, 3, 11, 12, 13], await concat(range(1, 4), range(11, 14)).toList());
-}
-
-main() {
-  asyncStart();
-  test().then((_) {
-    asyncEnd();
-  });
-}
diff --git a/tests/language_2/async_star/covariant_type_test.dart b/tests/language_2/async_star/covariant_type_test.dart
deleted file mode 100644
index 47e9789498f..00000000000
--- a/tests/language_2/async_star/covariant_type_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that TypeErrors for async* methods happen without using returned Stream.
-
-import 'dart:async';
-import 'package:expect/expect.dart';
-
-class D<T> {
-  // Parametric covariance check is usually compiled into method.
-  Stream<T> add(T n) async* {
-    yield n;
-  }
-}
-
-main() async {
-  D<num> d = new D<int>();
-  Expect.throwsTypeError(() => d.add(4.6));
-}
diff --git a/tests/language_2/async_star/dcall_type_test.dart b/tests/language_2/async_star/dcall_type_test.dart
deleted file mode 100644
index 972c917f558..00000000000
--- a/tests/language_2/async_star/dcall_type_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that TypeErrors for async* methods happen without using returned Stream.
-
-import 'dart:async';
-import 'package:expect/expect.dart';
-
-Stream<int> iota(int n) async* {
-  yield n;
-}
-
-class C {
-  Stream<int> add(int n) async* {
-    yield n;
-  }
-}
-
-main() async {
-  dynamic f = iota;
-  Expect.throwsTypeError(() => f('ten'));
-  Expect.throwsTypeError(() => f(4.7));
-
-  dynamic o = new C();
-  Expect.throwsTypeError(() => o.add('ten'));
-  Expect.throwsTypeError(() => o.add(4.7));
-}
diff --git a/tests/language_2/async_star/error_test.dart b/tests/language_2/async_star/error_test.dart
deleted file mode 100644
index 5d279f4dea9..00000000000
--- a/tests/language_2/async_star/error_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:async_helper/async_minitest.dart";
-
-/// Tests for exceptions raised in async*
-main() {
-  test('async* with Stream.first should complete with an error', () async {
-    var expectedStack;
-    Stream<int> foo() async* {
-      try {
-        throw 'oops';
-      } catch (e, s) {
-        expectedStack = s;
-        try {
-          throw 'oops again!';
-        } catch (e2, _) {}
-        await new Future.error(e, s);
-      }
-      yield 42;
-    }
-
-    try {
-      await foo().first;
-      fail('should not get here, an error should be thrown');
-    } catch (e, s) {
-      expect(e, 'oops');
-      expect(s, expectedStack);
-    }
-  });
-}
diff --git a/tests/language_2/async_star/loops_test.dart b/tests/language_2/async_star/loops_test.dart
deleted file mode 100644
index 1c65c70616a..00000000000
--- a/tests/language_2/async_star/loops_test.dart
+++ /dev/null
@@ -1,102 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_minitest.dart';
-
-import 'utils.dart';
-
-main() {
-  test('simple yield', () {
-    f() async* {
-      for (int i = 0; i < 3; i++) {
-        yield i;
-      }
-    }
-
-    return expectList(f(), [0, 1, 2]);
-  });
-
-  test('yield in double loop', () {
-    f() async* {
-      for (int i = 0; i < 3; i++) {
-        for (int j = 0; j < 2; j++) {
-          yield i * 2 + j;
-        }
-      }
-    }
-
-    return expectList(f(), [0, 1, 2, 3, 4, 5]);
-  });
-
-  test('yield in try body', () {
-    var list = [];
-    f() async* {
-      for (int i = 0; i < 3; i++) {
-        try {
-          yield i;
-        } finally {
-          list.add('$i');
-        }
-      }
-    }
-
-    return expectList(f(), [0, 1, 2]).whenComplete(() {
-      expect(list, equals(['0', '1', '2']));
-    });
-  });
-
-  test('yield in catch', () {
-    var list = [];
-    f() async* {
-      for (int i = 0; i < 3; i++) {
-        try {
-          throw i;
-        } catch (e) {
-          yield e;
-        } finally {
-          list.add('$i');
-        }
-      }
-    }
-
-    return expectList(f(), [0, 1, 2]).whenComplete(() {
-      expect(list, equals(['0', '1', '2']));
-    });
-  });
-
-  test('yield in finally', () {
-    var list = [];
-    f() async* {
-      for (int i = 0; i < 3; i++) {
-        try {
-          throw i;
-        } finally {
-          yield i;
-          list.add('$i');
-          continue;
-        }
-      }
-    }
-
-    return expectList(f(), [0, 1, 2]).whenComplete(() {
-      expect(list, equals(['0', '1', '2']));
-    });
-  });
-
-  test('keep yielding after cancel', () {
-    f() async* {
-      for (int i = 0; i < 10; i++) {
-        try {
-          yield i;
-        } finally {
-          continue;
-        }
-      }
-    }
-
-    return expectList(f().take(3), [0, 1, 2]);
-  });
-}
diff --git a/tests/language_2/async_star/no_cancel2_test.dart b/tests/language_2/async_star/no_cancel2_test.dart
deleted file mode 100644
index 067fccf8489..00000000000
--- a/tests/language_2/async_star/no_cancel2_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-var events = [];
-
-var timer;
-ticker(period) async* {
-  var sc;
-  sc = new StreamController(onListen: () {
-    events.add("listen");
-    timer = new Timer.periodic(period, (_) {
-      sc.add(null);
-    });
-  }, onCancel: () {
-    events.add("cancel");
-    timer.cancel();
-  });
-
-  try {
-    var counter = 0;
-    await for (var tick in sc.stream) {
-      counter++;
-    }
-  } finally {
-    events.add("finally");
-  }
-}
-
-void main() {
-  asyncStart();
-  events.add("main");
-  final subscription =
-      ticker(const Duration(milliseconds: 20)).listen((val) {});
-
-  bool cancelFinished = false;
-  new Timer(const Duration(milliseconds: 100), () async {
-    // Despite the cancel call below, the stream doesn't stop.
-    // The async* function is not blocked at any await (since the inner timer
-    // continuously ticks), but since there/ is no yield-point in the function
-    // it won't cancel.
-    new Timer(const Duration(milliseconds: 30), () {
-      Expect.isFalse(cancelFinished);
-      Expect.listEquals(["main", "listen", "invoke cancel"], events);
-      timer.cancel();
-      asyncEnd();
-    });
-
-    events.add("invoke cancel");
-    await subscription.cancel();
-    // This line should never be reached, since the cancel-future doesn't
-    // complete.
-    cancelFinished = true;
-  });
-}
diff --git a/tests/language_2/async_star/no_cancel_test.dart b/tests/language_2/async_star/no_cancel_test.dart
deleted file mode 100644
index 179bdf0539e..00000000000
--- a/tests/language_2/async_star/no_cancel_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-var events = [];
-
-ticker() async* {
-  var sc;
-  var sentTickCount = 0;
-  sc = new StreamController(onListen: () {
-    events.add("listen");
-  }, onCancel: () {
-    events.add("cancel");
-  });
-
-  try {
-    var counter = 0;
-    await for (var tick in sc.stream) {
-      counter++;
-    }
-  } finally {
-    events.add("finally");
-  }
-}
-
-void main() {
-  asyncStart();
-  events.add("main");
-  final subscription = ticker().listen((val) {});
-
-  bool cancelFinished = false;
-  // Cancel the subscription.
-  // The async* function is blocked on an `await` (the inner stream) and won't
-  // be able to complete.
-  Timer.run(() {
-    events.add("invoke cancel");
-    subscription.cancel().then((_) => cancelFinished = true);
-  });
-
-  new Timer(const Duration(milliseconds: 100), () {
-    Expect.isFalse(cancelFinished);
-    Expect.listEquals(["main", "listen", "invoke cancel"], events);
-    asyncEnd();
-  });
-}
diff --git a/tests/language_2/async_star/pause2_test.dart b/tests/language_2/async_star/pause2_test.dart
deleted file mode 100644
index f6e8d5fb58f..00000000000
--- a/tests/language_2/async_star/pause2_test.dart
+++ /dev/null
@@ -1,101 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-import 'package:async_helper/async_minitest.dart';
-
-import 'utils.dart';
-
-main() {
-  test('pauses execution at yield for at least a microtask', () {
-    var list = [];
-    f() async* {
-      list.add(1);
-      yield 2;
-      list.add(3);
-      yield 4;
-      list.add(5);
-    }
-
-    var done = Completer();
-    var sub = f().listen((v) {
-      if (v == 2) {
-        expect(list, equals([1]));
-      } else if (v == 4) {
-        expect(list, equals([1, 3]));
-      } else {
-        fail('Unexpected value $v');
-      }
-    }, onDone: () {
-      expect(list, equals([1, 3, 5]));
-      done.complete();
-    });
-    return done.future;
-  });
-
-  test('pause stops execution at yield', () {
-    var list = [];
-    f() async* {
-      list.add(1);
-      yield 2;
-      list.add(3);
-      yield 4;
-      list.add(5);
-    }
-
-    var done = Completer();
-    var sub;
-    sub = f().listen((v) {
-      if (v == 2) {
-        expect(list, equals([1]));
-        sub.pause();
-        Timer(ms * 300, () {
-          expect(list.length, lessThan(3));
-          sub.resume();
-        });
-      } else if (v == 4) {
-        expect(list, equals([1, 3]));
-      } else {
-        fail('Unexpected value $v');
-      }
-    }, onDone: () {
-      expect(list, equals([1, 3, 5]));
-      done.complete();
-    });
-    return done.future;
-  });
-
-  test('pause stops execution at yield 2', () {
-    var list = [];
-    f() async* {
-      int i = 0;
-      while (true) {
-        list.add(i);
-        yield i;
-        i++;
-      }
-    }
-
-    int expected = 0;
-    var done = Completer();
-    var sub;
-    sub = f().listen((v) {
-      expect(v, equals(expected++));
-      if (v % 5 == 0) {
-        sub.pause(Future.delayed(ms * 300));
-      } else if (v == 17) {
-        sub.cancel();
-        done.complete();
-      }
-    }, onDone: () {
-      fail('Unexpected done!');
-    });
-    return done.future.whenComplete(() {
-      expect(list.length == 18 || list.length == 19, isTrue);
-    });
-  });
-}
diff --git a/tests/language_2/async_star/pause_test.dart b/tests/language_2/async_star/pause_test.dart
deleted file mode 100644
index fbfe05073c2..00000000000
--- a/tests/language_2/async_star/pause_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library async_star_pause_test;
-
-import "package:async_helper/async_helper.dart";
-import "package:expect/expect.dart";
-import "dart:async";
-
-main() {
-  // await for pauses stream during body.
-  asyncTest(() async {
-    // Assumes await-for uses streamIterator.
-    var log = [];
-    var s = () async* {
-      for (int i = 0; i < 3; i++) {
-        log.add("$i-");
-        yield i;
-        // Should pause here until next iteration of await-for loop.
-        log.add("$i+");
-      }
-    }();
-    await for (var i in s) {
-      log.add("$i?");
-      await nextMicrotask();
-      log.add("$i!");
-    }
-    Expect.listEquals([
-      "0-",
-      "0?",
-      "0!",
-      "0+",
-      "1-",
-      "1?",
-      "1!",
-      "1+",
-      "2-",
-      "2?",
-      "2!",
-      "2+"
-    ], log);
-  });
-}
-
-Future nextMicrotask() => new Future.microtask(() {});
diff --git a/tests/language_2/async_star/regression_2238_test.dart b/tests/language_2/async_star/regression_2238_test.dart
deleted file mode 100644
index 515ede1e9d8..00000000000
--- a/tests/language_2/async_star/regression_2238_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This is a regression test for issue 2238
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-main() {
-  f() async* {
-    label1:
-    label2:
-    yield 0;
-  }
-
-  asyncStart();
-  f().toList().then((list) {
-    Expect.listEquals([0], list);
-    asyncEnd();
-  });
-}
diff --git a/tests/language_2/async_star/regression_23116_test.dart b/tests/language_2/async_star/regression_23116_test.dart
deleted file mode 100644
index e69059c1cfd..00000000000
--- a/tests/language_2/async_star/regression_23116_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for https://code.google.com/p/dart/issues/detail?id=23116
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-import 'dart:async';
-
-Stream<int> foo(Completer completer, Future future) async* {
-  completer.complete(100);
-  int x = await future;
-  Expect.equals(42, x);
-}
-
-test() async {
-  Completer completer1 = new Completer();
-  Completer completer2 = new Completer();
-  StreamSubscription s = foo(completer1, completer2.future).listen((v) => null);
-  await completer1.future;
-  // At this moment foo is waiting on the given future.
-  s.pause();
-  // Ensure that execution of foo is not resumed - the future is not completed
-  // yet.
-  s.resume();
-  completer2.complete(42);
-}
-
-main() {
-  asyncStart();
-  test().then((_) => asyncEnd());
-}
diff --git a/tests/language_2/async_star/regression_47610_test.dart b/tests/language_2/async_star/regression_47610_test.dart
deleted file mode 100644
index 4fd78150f90..00000000000
--- a/tests/language_2/async_star/regression_47610_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for https://github.com/dart-lang/sdk/issues/47610.
-// Tests returning value from a deep context depth along with
-// breaking from 'await for'.
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-Stream<int> foo() async* {
-  for (int i = 0; i < 2; ++i) {
-    for (int j = 0; j < 2; ++j) {
-      for (int k = 0; k < 2; ++k) {
-        yield i + j + k;
-      }
-    }
-  }
-}
-
-void test() async {
-  await for (var x in foo()) {
-    Expect.equals(0, x);
-    break;
-  }
-}
-
-void main() {
-  asyncTest(test);
-}
diff --git a/tests/language_2/async_star/regression_fisk_test.dart b/tests/language_2/async_star/regression_fisk_test.dart
deleted file mode 100644
index fe01969e902..00000000000
--- a/tests/language_2/async_star/regression_fisk_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test may crash dart2js.
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-main() {
-  var res = [];
-  fisk() async* {
-    res.add("+fisk");
-    try {
-      for (int i = 0; i < 2; i++) {
-        yield await new Future.microtask(() => i);
-      }
-    } finally {
-      res.add("-fisk");
-    }
-  }
-
-  fugl(int count) async {
-    res.add("fisk $count");
-    try {
-      await for (int i in fisk().take(count)) res.add(i);
-    } finally {
-      res.add("done");
-    }
-  }
-
-  asyncStart();
-  fugl(3)
-      .whenComplete(() => fugl(2))
-      .whenComplete(() => fugl(1))
-      .whenComplete(() {
-    Expect.listEquals([
-      "fisk 3",
-      "+fisk",
-      0,
-      1,
-      "-fisk",
-      "done",
-      "fisk 2",
-      "+fisk",
-      0,
-      1,
-      "-fisk",
-      "done",
-      "fisk 1",
-      "+fisk",
-      0,
-      "-fisk",
-      "done"
-    ], res);
-    asyncEnd();
-  });
-}
diff --git a/tests/language_2/async_star/stream_take_test.dart b/tests/language_2/async_star/stream_take_test.dart
deleted file mode 100644
index e8a01c70445..00000000000
--- a/tests/language_2/async_star/stream_take_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-Stream makeStream(int n) async* {
-  for (int i = 0; i < n; i++) yield i;
-}
-
-main() {
-  f(Stream s) async {
-    var r = 0;
-    await for (var v in s.take(5)) r += v;
-    return r;
-  }
-
-  asyncStart();
-  f(makeStream(10)).then((v) {
-    Expect.equals(10, v);
-    asyncEnd();
-  });
-}
diff --git a/tests/language_2/async_star/take_reyield_test.dart b/tests/language_2/async_star/take_reyield_test.dart
deleted file mode 100644
index c389bec008f..00000000000
--- a/tests/language_2/async_star/take_reyield_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-expectList(actualStream, expectedList) {
-  return actualStream.toList().then((v) {
-    Expect.listEquals(expectedList, v);
-  });
-}
-
-Stream makeStream(int n) async* {
-  for (int i = 0; i < n; i++) yield i;
-}
-
-main() {
-  fivePartialSums(Stream s) async* {
-    var r = 0;
-    await for (var v in s.take(5)) yield r += v;
-  }
-
-  asyncStart();
-  expectList(fivePartialSums(makeStream(10)), [0, 1, 3, 6, 10])
-      .then(asyncSuccess);
-}
diff --git a/tests/language_2/async_star/throw_in_catch_test.dart b/tests/language_2/async_star/throw_in_catch_test.dart
deleted file mode 100644
index 6a26245b809..00000000000
--- a/tests/language_2/async_star/throw_in_catch_test.dart
+++ /dev/null
@@ -1,129 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-class Tracer {
-  final String expected;
-  final String name;
-  String _trace = "";
-  int counter = 0;
-
-  Tracer(this.expected, [this.name]);
-
-  void trace(msg) {
-    _trace += msg;
-    counter++;
-  }
-
-  void done() {
-    Expect.equals(expected, _trace);
-  }
-}
-
-foo1(Tracer tracer) async* {
-  try {
-    tracer.trace("a");
-    await new Future.value(3);
-    tracer.trace("b");
-    throw "Error";
-  } catch (e) {
-    Expect.equals("Error", e);
-    tracer.trace("c");
-    yield 1;
-    tracer.trace("d");
-    yield 2;
-    tracer.trace("e");
-    yield 3;
-    tracer.trace("f");
-  } finally {
-    tracer.trace("g");
-  }
-  tracer.trace("h");
-}
-
-foo2(Tracer tracer) async* {
-  try {
-    tracer.trace("a");
-    throw "Error";
-  } catch (error) {
-    Expect.equals("Error", error);
-    tracer.trace("b");
-    rethrow;
-  } finally {
-    tracer.trace("c");
-  }
-}
-
-foo3(Tracer tracer) async* {
-  try {
-    tracer.trace("a");
-    throw "Error";
-  } catch (error) {
-    Expect.equals("Error", error);
-    tracer.trace("b");
-    rethrow;
-  } finally {
-    tracer.trace("c");
-    yield 1;
-  }
-}
-
-foo4(Tracer tracer) async* {
-  try {
-    tracer.trace("a");
-    await new Future.value(3);
-    tracer.trace("b");
-    throw "Error";
-  } catch (e) {
-    Expect.equals("Error", e);
-    tracer.trace("c");
-    yield 1;
-    tracer.trace("d");
-    yield 2;
-    tracer.trace("e");
-    await new Future.error("Error2");
-  } finally {
-    tracer.trace("f");
-  }
-  tracer.trace("g");
-}
-
-runTest(test, expectedTrace, expectedError, shouldCancel) {
-  Tracer tracer = new Tracer(expectedTrace, expectedTrace);
-  Completer done = new Completer();
-  var subscription;
-  subscription = test(tracer).listen((event) async {
-    tracer.trace("Y");
-    if (shouldCancel) {
-      await subscription.cancel();
-      tracer.trace("C");
-      done.complete(null);
-    }
-  }, onError: (error) {
-    Expect.equals(expectedError, error);
-    tracer.trace("X");
-  }, onDone: () {
-    tracer.done();
-    done.complete(null);
-  });
-  return done.future.then((_) => tracer.done());
-}
-
-test() async {
-  // TODO(sigurdm): These tests are too dependent on scheduling, and buffering
-  // behavior.
-  await runTest(foo1, "abcYgC", null, true);
-  await runTest(foo2, "abcX", "Error", false);
-  await runTest(foo3, "abcYX", "Error", false);
-  await runTest(foo4, "abcYdYefX", "Error2", false);
-}
-
-void main() {
-  asyncTest(test);
-}
diff --git a/tests/language_2/async_star/utils.dart b/tests/language_2/async_star/utils.dart
deleted file mode 100644
index be8e165c7a9..00000000000
--- a/tests/language_2/async_star/utils.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-import 'package:async_helper/async_minitest.dart';
-
-const ms = const Duration(milliseconds: 1);
-
-/// Allows two asynchronous executions to synchronize.
-///
-/// Calling [wait] and waiting for the returned future to complete will wait for
-/// the other executions to call [wait] again. At that point, the waiting
-/// execution is allowed to continue (the returned future completes), and the
-/// more resent call to [wait] is now the waiting execution.
-class Sync {
-  Completer _completer = null;
-  // Release whoever is currently waiting and start waiting yourself.
-  Future wait([v]) {
-    if (_completer != null) _completer.complete(v);
-    _completer = Completer();
-    return _completer.future;
-  }
-
-  // Release whoever is currently waiting.
-  void release([v]) {
-    if (_completer != null) {
-      _completer.complete(v);
-      _completer = null;
-    }
-  }
-}
-
-expectList(stream, list) {
-  return stream.toList().then((v) {
-    expect(v, equals(list));
-  });
-}
-
-mkStream(int n) async* {
-  for (int i = 0; i < n; i++) yield i;
-}
diff --git a/tests/language_2/async_star/void_async_star_test.dart b/tests/language_2/async_star/void_async_star_test.dart
deleted file mode 100644
index 79bc14f4df9..00000000000
--- a/tests/language_2/async_star/void_async_star_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// It is an error for an `async*` function to have return type `void`.
-
-import 'dart:async';
-
-/*space*/ void f1() async* {
-  //      ^^^^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-}
-
-class C {
-  static void f2() async* {
-    //   ^^^^
-    // [analyzer] unspecified
-    // [cfe] unspecified
-  }
-
-  /*space*/ void f3() async* {
-    //      ^^^^
-    // [analyzer] unspecified
-    // [cfe] unspecified
-  }
-}
-
-void main() {
-  /*space*/ void f4() async* {
-    //      ^^^^
-    // [analyzer] unspecified
-    // [cfe] unspecified
-  }
-
-  // No function literal: It is probably not possible to infer the
-  // return type `void` for a function literal marked `async*`.
-}
diff --git a/tests/language_2/async_star/yield_expressions_test.dart b/tests/language_2/async_star/yield_expressions_test.dart
deleted file mode 100644
index 9d6527dc09b..00000000000
--- a/tests/language_2/async_star/yield_expressions_test.dart
+++ /dev/null
@@ -1,179 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_minitest.dart';
-
-import 'utils.dart';
-
-main() {
-  test('local variable', () {
-    f() async* {
-      var x = 42;
-      yield x;
-    }
-
-    return expectList(f(), [42]);
-  });
-
-  test('constant variable', () {
-    f() async* {
-      const x = 42;
-      yield x;
-    }
-
-    return expectList(f(), [42]);
-  });
-
-  test('function call', () {
-    g() => 42;
-    f() async* {
-      yield g();
-    }
-
-    return expectList(f(), [42]);
-  });
-
-  test('unary operator', () {
-    f() async* {
-      var x = -42;
-      yield -x;
-    }
-
-    return expectList(f(), [42]);
-  });
-
-  test('binary operator', () {
-    f() async* {
-      var x = 21;
-      yield x + x;
-    }
-
-    return expectList(f(), [42]);
-  });
-
-  test('ternary operator', () {
-    f() async* {
-      var x = 21;
-      yield x == 21 ? x + x : x;
-    }
-
-    return expectList(f(), [42]);
-  });
-
-  test('suffix post-increment', () {
-    f() async* {
-      var x = 42;
-      yield x++;
-    }
-
-    return expectList(f(), [42]);
-  });
-
-  test('suffix pre-increment', () {
-    f() async* {
-      var x = 41;
-      yield ++x;
-    }
-
-    return expectList(f(), [42]);
-  });
-
-  test('assignment', () {
-    f() async* {
-      var x = 37;
-      yield x = 42;
-    }
-
-    return expectList(f(), [42]);
-  });
-
-  test('assignment op', () {
-    f() async* {
-      var x = 41;
-      yield x += 1;
-    }
-
-    return expectList(f(), [42]);
-  });
-
-  test('await', () {
-    f() async* {
-      yield await Future.value(42);
-    }
-
-    return expectList(f(), [42]);
-  });
-
-  test('index operator', () {
-    f() async* {
-      var x = [42];
-      yield x[0];
-    }
-
-    return expectList(f(), [42]);
-  });
-
-  test('function expression block', () {
-    var o = Object();
-    f() async* {
-      yield () {
-        return o;
-      };
-    }
-
-    return f().first.then((v) {
-      expect(v(), same(o));
-    });
-  });
-
-  test('function expression arrow', () {
-    var o = Object();
-    f() async* {
-      yield () => o;
-    }
-
-    return f().first.then((v) {
-      expect(v(), same(o));
-    });
-  });
-
-  test('function expression block async', () {
-    var o = Object();
-    f() async* {
-      yield () async {
-        return o;
-      };
-    }
-
-    return f().first.then((v) => v()).then((v) {
-      expect(v, same(o));
-    });
-  });
-
-  test('function expression arrow async', () {
-    var o = Object();
-    f() async* {
-      yield () async => o;
-    }
-
-    return f().first.then((v) => v()).then((v) {
-      expect(v, same(o));
-    });
-  });
-
-  test('function expression block async*', () {
-    var o = Object();
-    f() async* {
-      yield () async* {
-        yield o;
-      };
-    }
-
-    return f().first.then((v) => v().first).then((v) {
-      expect(v, same(o));
-    });
-  });
-}
diff --git a/tests/language_2/async_star/yield_from_catch_test.dart b/tests/language_2/async_star/yield_from_catch_test.dart
deleted file mode 100644
index 3af2d083b67..00000000000
--- a/tests/language_2/async_star/yield_from_catch_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for issue: https://github.com/dart-lang/sdk/issues/39994
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-Stream<String> testStream() async* {
-  try {
-    await testThrow();
-    yield "A";
-  } catch (e) {
-    yield "B";
-    yield "C";
-    yield "D";
-  }
-}
-
-testThrow() async {
-  throw Exception();
-}
-
-test() async {
-  var result = await testStream().toList();
-  Expect.listEquals(["B", "C", "D"], result);
-}
-
-main() {
-  asyncTest(test);
-}
diff --git a/tests/language_2/async_star/yield_statement_context_test.dart b/tests/language_2/async_star/yield_statement_context_test.dart
deleted file mode 100644
index 7e64c9b05d1..00000000000
--- a/tests/language_2/async_star/yield_statement_context_test.dart
+++ /dev/null
@@ -1,209 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_minitest.dart';
-
-import 'utils.dart';
-
-void main() {
-  test('plain', () {
-    f() async* {
-      yield 0;
-    }
-
-    return expectList(f(), [0]);
-  });
-
-  test('if-then-else', () {
-    f(b) async* {
-      if (b)
-        yield 0;
-      else
-        yield 1;
-    }
-
-    return expectList(f(true), [0]).whenComplete(() {
-      expectList(f(false), [1]);
-    });
-  });
-
-  test('block', () {
-    f() async* {
-      yield 0;
-      {
-        yield 1;
-      }
-      yield 2;
-    }
-
-    return expectList(f(), [0, 1, 2]);
-  });
-
-  test('labeled', () {
-    f() async* {
-      label1:
-      yield 0;
-    }
-
-    return expectList(f(), [0]);
-  });
-
-  test('two labels on same line', () {
-    f() async* {
-      // DO NOT RUN dart format on this file. The labels should be on the same.
-      // line. Originally VM issue #2238.
-      label1: label2: yield 0;
-    }
-
-    return expectList(f(), [0]);
-  });
-
-  test('for-loop', () {
-    f() async* {
-      for (int i = 0; i < 3; i++) yield i;
-    }
-
-    return expectList(f(), [0, 1, 2]);
-  });
-
-  test('for-in-loop', () {
-    f() async* {
-      for (var i in [0, 1, 2]) yield i;
-    }
-
-    return expectList(f(), [0, 1, 2]);
-  });
-
-  test('await for-in-loop', () {
-    f() async* {
-      await for (var i in Stream.fromIterable([0, 1, 2])) yield i;
-    }
-
-    return expectList(f(), [0, 1, 2]);
-  });
-
-  test('while-loop', () {
-    f() async* {
-      int i = 0;
-      while (i < 3) yield i++;
-    }
-
-    return expectList(f(), [0, 1, 2]);
-  });
-
-  test('do-while-loop', () {
-    f() async* {
-      int i = 0;
-      do yield i++; while (i < 3);
-    }
-
-    return expectList(f(), [0, 1, 2]);
-  });
-
-  test('try-catch-finally', () {
-    f() async* {
-      try {
-        yield 0;
-      } catch (e) {
-        yield 1;
-      } finally {
-        yield 2;
-      }
-    }
-
-    return expectList(f(), [0, 2]);
-  });
-
-  test('try-catch-finally 2', () {
-    f() async* {
-      try {
-        yield throw 0;
-      } catch (e) {
-        yield 1;
-      } finally {
-        yield 2;
-      }
-    }
-
-    return expectList(f(), [1, 2]);
-  });
-
-  test('switch-case', () {
-    f(v) async* {
-      switch (v) {
-        case 0:
-          yield 0;
-          continue label1;
-        label1:
-        case 1:
-          yield 1;
-          break;
-        default:
-          yield 2;
-      }
-    }
-
-    return expectList(f(0), [0, 1]).whenComplete(() {
-      return expectList(f(1), [1]);
-    }).whenComplete(() {
-      return expectList(f(2), [2]);
-    });
-  });
-
-  test('dead-code return', () {
-    f() async* {
-      return;
-      yield 1;
-    }
-
-    return expectList(f(), []);
-  });
-
-  test('dead-code throw', () {
-    f() async* {
-      try {
-        throw 0;
-        yield 1;
-      } catch (_) {}
-    }
-
-    return expectList(f(), []);
-  });
-
-  test('dead-code break', () {
-    f() async* {
-      while (true) {
-        break;
-        yield 1;
-      }
-    }
-
-    return expectList(f(), []);
-  });
-
-  test('dead-code break 2', () {
-    f() async* {
-      label:
-      {
-        break label;
-        yield 1;
-      }
-    }
-
-    return expectList(f(), []);
-  });
-
-  test('dead-code continue', () {
-    f() async* {
-      do {
-        continue;
-        yield 1;
-      } while (false);
-    }
-
-    return expectList(f(), []);
-  });
-}
diff --git a/tests/language_2/async_star/yield_test.dart b/tests/language_2/async_star/yield_test.dart
deleted file mode 100644
index 081174fe2c8..00000000000
--- a/tests/language_2/async_star/yield_test.dart
+++ /dev/null
@@ -1,78 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-Stream<int> foo1() async* {
-  yield 1;
-  var p = await new Future.value(10);
-  yield p + 10;
-}
-
-Stream<int> foo2() async* {
-  int i = 0;
-  while (true) {
-    await (new Future.delayed(new Duration(milliseconds: 0), () {}));
-    if (i > 10) return;
-    yield i;
-    i++;
-  }
-}
-
-Stream<int> foo3(p) async* {
-  int i = 0;
-  bool t = false;
-  yield null;
-  while (true) {
-    i++;
-    a:
-    for (int i = 0; i < p; i++) {
-      if (!t) {
-        for (int j = 0; j < 3; j++) {
-          yield -1;
-          t = true;
-          break a;
-        }
-      }
-      await 4;
-      yield i;
-    }
-  }
-}
-
-Completer<bool> finalized = new Completer<bool>();
-
-Stream<int> foo4() async* {
-  int i = 0;
-  try {
-    while (true) {
-      yield i;
-      i++;
-    }
-  } finally {
-    // Canceling the stream-subscription should run the finalizer.
-    finalized.complete(true);
-  }
-}
-
-test() async {
-  Expect.listEquals([1, 20], await (foo1().toList()));
-  Expect.listEquals([0, 1, 2, 3], await (foo2().take(4).toList()));
-  Expect.listEquals(
-      [null, -1, 0, 1, 2, 3, 0, 1, 2, 3], await (foo3(4).take(10).toList()));
-  Expect.listEquals(
-      [0, 1, 2, 3, 4, 5, 6, 7, 8, 9], await (foo4().take(10).toList()));
-  Expect.isTrue(await (finalized.future));
-}
-
-main() {
-  asyncStart();
-  test().then((_) {
-    asyncEnd();
-  });
-}
diff --git a/tests/language_2/async_star/yieldstar_test.dart b/tests/language_2/async_star/yieldstar_test.dart
deleted file mode 100644
index 23647a49452..00000000000
--- a/tests/language_2/async_star/yieldstar_test.dart
+++ /dev/null
@@ -1,101 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-Stream<int> subStream(p) async* {
-  yield p;
-  yield p + 1;
-}
-
-Stream foo(Completer<bool> finalized) async* {
-  int i = 0;
-  try {
-    while (true) {
-      yield "outer";
-      yield* subStream(i);
-      i++;
-    }
-  } finally {
-    // See that we did not run too many iterations.
-    Expect.isTrue(i < 10);
-    // Canceling the stream-subscription should run the finalizer.
-    finalized.complete(true);
-  }
-}
-
-foo2(Stream subStream) async* {
-  yield* subStream;
-}
-
-test() async {
-  Expect.listEquals([0, 1], await (subStream(0).toList()));
-  Completer<bool> finalized = new Completer<bool>();
-  Expect.listEquals(["outer", 0, 1, "outer", 1, 2, "outer", 2],
-      await (foo(finalized).take(8).toList()));
-  Expect.isTrue(await (finalized.future));
-
-  finalized = new Completer<bool>();
-  // Canceling the stream while it is yield*-ing from the sub-stream.
-  Expect.listEquals(["outer", 0, 1, "outer", 1, 2, "outer"],
-      await (foo(finalized).take(7).toList()));
-  Expect.isTrue(await (finalized.future));
-  finalized = new Completer<bool>();
-
-  Completer<bool> pausedCompleter = new Completer<bool>();
-  Completer<bool> resumedCompleter = new Completer<bool>();
-  Completer<bool> canceledCompleter = new Completer<bool>();
-
-  StreamController controller;
-  int i = 0;
-  addNext() {
-    if (i >= 10) return;
-    controller.add(i);
-    i++;
-    if (!controller.isPaused) {
-      scheduleMicrotask(addNext);
-    }
-  }
-
-  controller = new StreamController(onListen: () {
-    scheduleMicrotask(addNext);
-  }, onPause: () {
-    pausedCompleter.complete(true);
-  }, onResume: () {
-    resumedCompleter.complete(true);
-    scheduleMicrotask(addNext);
-  }, onCancel: () {
-    canceledCompleter.complete(true);
-  });
-
-  StreamSubscription subscription;
-  // Test that the yield*'ed stream is paused and resumed.
-  subscription = foo2(controller.stream).listen((event) {
-    if (event == 2) {
-      subscription.pause();
-      scheduleMicrotask(() {
-        subscription.resume();
-      });
-    }
-    if (event == 5) {
-      subscription.cancel();
-    }
-  });
-  // Test that the yield*'ed streamSubscription is paused, resumed and canceled
-  // by the async* stream.
-  Expect.isTrue(await pausedCompleter.future);
-  Expect.isTrue(await resumedCompleter.future);
-  Expect.isTrue(await canceledCompleter.future);
-}
-
-main() {
-  asyncStart();
-  test().then((_) {
-    asyncEnd();
-  });
-}
diff --git a/tests/language_2/await/and_ifnull_test.dart b/tests/language_2/await/and_ifnull_test.dart
deleted file mode 100644
index b1ec0cf24db..00000000000
--- a/tests/language_2/await/and_ifnull_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import 'package:expect/expect.dart';
-
-Future<String> foo(bool x) async => x ? "foo" : null;
-
-Future<String> bar(bool x) async {
-  return ((await foo(x)) ?? "bar").toUpperCase();
-}
-
-main() async {
-  Expect.equals(await bar(true), "FOO");
-  Expect.equals(await bar(false), "BAR");
-}
diff --git a/tests/language_2/await/await_test.dart b/tests/language_2/await/await_test.dart
deleted file mode 100644
index 22aa1833ce4..00000000000
--- a/tests/language_2/await/await_test.dart
+++ /dev/null
@@ -1,242 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=---optimization-counter-threshold=10
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-import 'dart:async';
-
-int globalVariable = 1;
-int topLevelFoo(int param) => 1;
-int get topLevelGetter => globalVariable;
-void set topLevelSetter(val) {
-  globalVariable = val;
-}
-
-class C {
-  static int staticField = 1;
-  static int get staticGetter => staticField;
-  static void set staticSetter(val) {
-    staticField = val;
-  }
-
-  static int staticFoo(int param) => param;
-
-  int field = 1;
-  int get getter => field;
-  void set setter(val) {
-    field = val;
-  }
-
-  int foo(int param) => param;
-}
-
-dummy() => 1;
-
-staticMembers() async {
-  var a = C.staticField + await dummy();
-  Expect.equals(a, 2);
-  var f = (C.staticField = 1) + await dummy();
-  Expect.equals(f, 2);
-  var b = C.staticGetter + await dummy();
-  Expect.equals(b, 2);
-  var c = (C.staticSetter = 1) + await dummy();
-  Expect.equals(c, 2);
-  var d = C.staticFoo(2) + await dummy();
-  Expect.equals(d, 3);
-  var e = C.staticField +
-      C.staticGetter +
-      (C.staticSetter = 1) +
-      C.staticFoo(1) +
-      await dummy();
-  Expect.equals(e, 5);
-}
-
-topLevelMembers() async {
-  var a = globalVariable + await dummy();
-  Expect.equals(a, 2);
-  var b = topLevelGetter + await dummy();
-  Expect.equals(b, 2);
-  var c = (topLevelSetter = 1) + await dummy();
-  Expect.equals(c, 2);
-  var d = topLevelFoo(1) + await dummy();
-  Expect.equals(d, 2);
-  var e = globalVariable +
-      topLevelGetter +
-      (topLevelSetter = 1) +
-      topLevelFoo(1) +
-      await dummy();
-  Expect.equals(e, 5);
-}
-
-instanceMembers() async {
-  var inst = new C();
-  var a = inst.field + await dummy();
-  Expect.equals(a, 2);
-  var b = inst.getter + await dummy();
-  Expect.equals(b, 2);
-  var c = (inst.setter = 1) + await dummy();
-  Expect.equals(c, 2);
-  var d = inst.foo(1) + await dummy();
-  Expect.equals(d, 2);
-  var e = inst.field +
-      inst.getter +
-      (inst.setter = 1) +
-      inst.foo(1) +
-      await dummy();
-  Expect.equals(e, 5);
-}
-
-others() async {
-  var a = "${globalVariable} ${await dummy()} " + await "someString";
-  Expect.equals(a, "1 1 someString");
-  var c = new C();
-  var d = c.field + await dummy();
-  var cnt = 2;
-  var b = [1, 2, 3];
-  b[cnt] = await dummy();
-  Expect.equals(b[cnt], 1);
-  var e = b[0] + await dummy();
-  Expect.equals(e, 2);
-}
-
-conditionals() async {
-  var a = false;
-  var b = true;
-  var c = (a || b) || await dummy();
-  Expect.isTrue(c);
-  var d = (a || b) ? a : await dummy();
-  Expect.isFalse(d);
-  var e = (a is int) ? await dummy() : 2;
-  Expect.equals(e, 2);
-  try {
-    var f = (a is int) ? await dummy() : 2;
-  } catch (e) {}
-}
-
-asserts() async {
-  for (final FutureOr<T> Function<T>(T) func in <Function>[id, future]) {
-    assert(await func(true));
-    assert(id(true), await func("message"));
-    assert(await func(true), await (func("message")));
-    bool success = true;
-    try {
-      assert(await func(false), await (func("message")));
-      if (assertStatementsEnabled) Expect.fail("Didn't throw");
-    } on AssertionError catch (e) {
-      Expect.equals("message", e.message);
-    }
-  }
-}
-
-controlFlow() async {
-  for (final FutureOr<T> Function<T>(T) func in <Function>[id, future]) {
-    // For.
-    var c = 0;
-    for (var i = await (func(0)); await func(i < 5); await func(i++)) {
-      c++;
-    }
-    Expect.equals(5, c);
-    // While.
-    c = 0;
-    while (await func(c < 5)) c++;
-    Expect.equals(5, c);
-    // Do-while.
-    c = 0;
-    do {
-      c++;
-    } while (await func(c < 5));
-    Expect.equals(5, c);
-    // If.
-    if (await func(c == 5)) {
-      Expect.equals(5, c);
-    } else {
-      Expect.fail("unreachable");
-    }
-    // Throw.
-    try {
-      throw await func("string");
-    } on String {
-      // OK.
-    }
-
-    try {
-      await (throw "string");
-    } on String {
-      // OK.
-    }
-    // Try/catch/finally
-    try {
-      try {
-        throw "string";
-      } catch (e) {
-        Expect.equals("string", e);
-        Expect.equals(0, await func(0));
-        rethrow;
-      } finally {
-        Expect.equals(0, await func(0));
-      }
-    } catch (e) {
-      Expect.equals(0, await func(0));
-      Expect.equals("string", e);
-    } finally {
-      Expect.equals(0, await func(0));
-    }
-    // Switch
-    switch (await func(2)) {
-      case 2:
-        break;
-      default:
-        Expect.fail("unreachable");
-    }
-    // Return.
-    Expect.equals(
-        42,
-        await () async {
-          return await func(42);
-        }());
-    Expect.equals(
-        42,
-        await () async {
-          return func(42);
-        }());
-    // Yield.
-    Stream<int> testStream1() async* {
-      yield await func(42);
-    }
-
-    Expect.listEquals([42], await testStream1().toList());
-    // Yield*
-    Stream<int> testStream2() async* {
-      yield* await func(intStream());
-    }
-
-    Expect.listEquals([42], await testStream2().toList());
-  }
-}
-
-FutureOr<T> future<T>(T value) async => value;
-FutureOr<T> id<T>(T value) => value;
-
-Stream<int> intStream() async* {
-  yield 42;
-}
-
-main() {
-  asyncStart();
-  for (int i = 0; i < 11; i++) {
-    asyncTest(staticMembers);
-    asyncTest(topLevelMembers);
-    asyncTest(instanceMembers);
-    asyncTest(conditionals);
-    asyncTest(others);
-    asyncTest(asserts);
-    asyncTest(controlFlow);
-  }
-  asyncEnd();
-}
diff --git a/tests/language_2/await/backwards_compatibility_runtime_test.dart b/tests/language_2/await/backwards_compatibility_runtime_test.dart
deleted file mode 100644
index c755f58b403..00000000000
--- a/tests/language_2/await/backwards_compatibility_runtime_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-
-get await => 4;
-
-// For functions that are declared with the async modifier we treat await as
-// keyword.
-
-test0() async {
-  var x = await 7;
-  Expect.equals(7, x);
-
-}
-
-test1() async {
-  var x = await 9;
-  Expect.equals(9, x);
-
-}
-
-// For functions that are not declared with the async modifier we allow await to
-// be used as an identifier.
-
-test2() {
-  var y = await;
-  Expect.equals(4, y);
-
-}
-
-test3() {
-  var await = 3;
-  Expect.equals(3, await);
-
-}
-
-main() {
-  test0();
-  test1();
-  test2();
-  test3();
-}
diff --git a/tests/language_2/await/backwards_compatibility_test.dart b/tests/language_2/await/backwards_compatibility_test.dart
deleted file mode 100644
index f8960bcc6f4..00000000000
--- a/tests/language_2/await/backwards_compatibility_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-
-get await => 4;
-
-// For functions that are declared with the async modifier we treat await as
-// keyword.
-
-test0() async {
-  var x = await 7;
-  Expect.equals(7, x);
-  var await = 1;
-  //  ^^^^^
-  // [analyzer] SYNTACTIC_ERROR.ASYNC_KEYWORD_USED_AS_IDENTIFIER
-  // [cfe] 'await' can't be used as an identifier in 'async', 'async*', or 'sync*' methods.
-}
-
-test1() async {
-  var x = await 9;
-  Expect.equals(9, x);
-  var y = await;
-  //           ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] Expected an identifier, but got ';'.
-}
-
-// For functions that are not declared with the async modifier we allow await to
-// be used as an identifier.
-
-test2() {
-  var y = await;
-  Expect.equals(4, y);
-  var x = await 1;
-  //      ^^^^^
-  // [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-  // [cfe] Expected ';' after this.
-}
-
-test3() {
-  var await = 3;
-  Expect.equals(3, await);
-  var x = await 1;
-  //      ^^^^^
-  // [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-  // [cfe] Expected ';' after this.
-}
-
-main() {
-  test0();
-  test1();
-  test2();
-  test3();
-}
diff --git a/tests/language_2/await/exceptions_test.dart b/tests/language_2/await/exceptions_test.dart
deleted file mode 100644
index 5057f7d6870..00000000000
--- a/tests/language_2/await/exceptions_test.dart
+++ /dev/null
@@ -1,100 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--optimization-counter-threshold=20
-
-import 'package:expect/expect.dart';
-import "package:async_helper/async_helper.dart";
-
-import 'dart:async';
-
-// It does not matter where a future is generated.
-bar(p) async => p;
-baz(p) => new Future(() => p);
-
-test0_1() async {
-  throw 1;
-}
-
-test0() async {
-  try {
-    await test0_1();
-  } catch (e) {
-    Expect.equals(1, e);
-  }
-}
-
-test1_1() async {
-  throw 1;
-}
-
-test1_2() async {
-  try {
-    await test1_1();
-  } catch (e) {
-    throw e + 1;
-  }
-}
-
-test1() async {
-  try {
-    await test1_2();
-  } catch (e) {
-    Expect.equals(2, e);
-  }
-}
-
-test2() async {
-  var x;
-  var test2_1 = () async {
-    try {
-      throw 'a';
-    } catch (e) {
-      throw e + 'b';
-    }
-  };
-  try {
-    try {
-      await test2_1();
-    } catch (e) {
-      var y = await bar(e + 'c');
-      throw y;
-    }
-  } catch (e) {
-    x = e + 'd';
-    return '?';
-  } finally {
-    return x;
-  }
-  return '!';
-}
-
-test() async {
-  var result;
-  for (int i = 0; i < 10; i++) {
-    await test0();
-    await test1();
-    result = await test2();
-    Expect.equals('abcd', result);
-  }
-  await 1;
-}
-
-foo() {
-  throw "Error";
-}
-
-awaitFoo() async {
-  await foo();
-}
-
-main() {
-  asyncStart();
-  test()
-      .then((_) => awaitFoo().then((_) => Expect.fail("Should have thrown"),
-          onError: (error) => Expect.equals("Error", error)))
-      .whenComplete(asyncEnd);
-}
diff --git a/tests/language_2/await/for_cancel_test.dart b/tests/language_2/await/for_cancel_test.dart
deleted file mode 100644
index 981c7b64752..00000000000
--- a/tests/language_2/await/for_cancel_test.dart
+++ /dev/null
@@ -1,95 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-bool canceled;
-
-test1() async {
-  canceled = false;
-  try {
-    StreamController controller = infiniteStreamController();
-    outer:
-    while (true) {
-      await for (var x in controller.stream) {
-        for (int j = 0; j < 10; j++) {
-          if (j == 5) break outer;
-        }
-      }
-    }
-  } finally {
-    Expect.isTrue(canceled);
-  }
-}
-
-test2() async {
-  canceled = false;
-  try {
-    StreamController controller = infiniteStreamController();
-    bool first = true;
-    outer:
-    while (true) {
-      if (first) {
-        first = false;
-      } else {
-        break;
-      }
-      await for (var x in controller.stream) {
-        for (int j = 0; j < 10; j++) {
-          if (j == 5) continue outer;
-        }
-      }
-    }
-  } finally {
-    Expect.isTrue(canceled);
-  }
-}
-
-test() async {
-  await test1();
-  await test2();
-}
-
-main() {
-  asyncStart();
-  test().then((_) {
-    asyncEnd();
-  });
-}
-
-// Create a stream that produces numbers [1, 2, ... ]
-StreamController infiniteStreamController() {
-  StreamController controller;
-  Timer timer;
-  int counter = 0;
-
-  void tick() {
-    if (controller.isPaused) {
-      return;
-    }
-    if (canceled) {
-      return;
-    }
-    counter++;
-    controller.add(counter); // Ask stream to send counter values as event.
-    Timer.run(tick);
-  }
-
-  void startTimer() {
-    Timer.run(tick);
-  }
-
-  controller = new StreamController(
-      onListen: startTimer,
-      onResume: startTimer,
-      onCancel: () {
-        canceled = true;
-      });
-
-  return controller;
-}
diff --git a/tests/language_2/await/for_test.dart b/tests/language_2/await/for_test.dart
deleted file mode 100644
index da1c7e278dd..00000000000
--- a/tests/language_2/await/for_test.dart
+++ /dev/null
@@ -1,161 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// VMOptions=
-// VMOptions=--stress_write_barrier_elimination
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-class Trace {
-  String trace = "";
-  record(x) {
-    trace += x.toString();
-  }
-
-  toString() => trace;
-}
-
-Stream makeMeAStream() {
-  return timedCounter(5);
-}
-
-Trace t1 = new Trace();
-
-Future consumeOne() async {
-  // Equivalent to await for (x in makeMeAStream()) { ... }
-  var s = makeMeAStream();
-  var it = new StreamIterator(s);
-  while (await it.moveNext()) {
-    var x = it.current;
-    t1.record(x);
-  }
-  t1.record("X");
-}
-
-Trace t2 = new Trace();
-
-Future consumeTwo() async {
-  await for (var x in makeMeAStream()) {
-    t2.record(x);
-  }
-  t2.record("Y");
-}
-
-Trace t3 = new Trace();
-
-Future consumeNested() async {
-  await for (var x in makeMeAStream()) {
-    t3.record(x);
-    await for (var y in makeMeAStream()) {
-      t3.record(y);
-    }
-    t3.record("|");
-  }
-  t3.record("Z");
-}
-
-Trace t4 = new Trace();
-
-Future consumeSomeOfInfinite() async {
-  int i = 0;
-  await for (var x in infiniteStream()) {
-    i++;
-    if (i > 10) break;
-    t4.record(x);
-  }
-  t4.record("U");
-}
-
-main() {
-  var f1 = consumeOne();
-  t1.record("T1:");
-
-  var f2 = consumeTwo();
-  t2.record("T2:");
-
-  var f3 = consumeNested();
-  t3.record("T3:");
-
-  var f4 = consumeSomeOfInfinite();
-  t4.record("T4:");
-
-  asyncStart();
-  Future.wait([f1, f2, f3, f4]).then((_) {
-    Expect.equals("T1:12345X", t1.toString());
-    Expect.equals("T2:12345Y", t2.toString());
-    Expect.equals("T3:112345|212345|312345|412345|512345|Z", t3.toString());
-    Expect.equals("T4:12345678910U", t4.toString());
-    asyncEnd();
-  });
-}
-
-// Create a stream that produces numbers [1, 2, ... maxCount]
-Stream timedCounter(int maxCount) {
-  StreamController controller;
-  Timer timer;
-  int counter = 0;
-
-  void tick(_) {
-    counter++;
-    controller.add(counter); // Ask stream to send counter values as event.
-    if (counter >= maxCount) {
-      timer.cancel();
-      controller.close(); //    Ask stream to shut down and tell listeners.
-    }
-  }
-
-  void startTimer() {
-    timer = new Timer.periodic(const Duration(milliseconds: 10), tick);
-  }
-
-  void stopTimer() {
-    if (timer != null) {
-      timer.cancel();
-      timer = null;
-    }
-  }
-
-  controller = new StreamController(
-      onListen: startTimer,
-      onPause: stopTimer,
-      onResume: startTimer,
-      onCancel: stopTimer);
-
-  return controller.stream;
-}
-
-// Create a stream that produces numbers [1, 2, ... ]
-Stream infiniteStream() {
-  StreamController controller;
-  Timer timer;
-  int counter = 0;
-
-  void tick(_) {
-    counter++;
-    controller.add(counter); // Ask stream to send counter values as event.
-  }
-
-  void startTimer() {
-    timer = new Timer.periodic(const Duration(milliseconds: 10), tick);
-  }
-
-  void stopTimer() {
-    if (timer != null) {
-      timer.cancel();
-      timer = null;
-    }
-  }
-
-  controller = new StreamController(
-      onListen: startTimer,
-      onPause: stopTimer,
-      onResume: startTimer,
-      onCancel: stopTimer);
-
-  return controller.stream;
-}
diff --git a/tests/language_2/await/for_use_local_test.dart b/tests/language_2/await/for_use_local_test.dart
deleted file mode 100644
index 2b72662b0c9..00000000000
--- a/tests/language_2/await/for_use_local_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-sumStream(s) async {
-  int accum = 0;
-  await for (var v in s) {
-    accum += v;
-  }
-  return accum;
-}
-
-test() async {
-  var countStreamController;
-  int i = 0;
-  void tick() {
-    if (i < 10) {
-      countStreamController.add(i);
-      i++;
-      scheduleMicrotask(tick);
-    } else {
-      countStreamController.close();
-    }
-  }
-
-  countStreamController = new StreamController(onListen: () {
-    scheduleMicrotask(tick);
-  });
-  Expect.equals(45, await sumStream(countStreamController.stream));
-}
-
-void main() {
-  asyncStart();
-  test().then((_) => asyncEnd());
-}
diff --git a/tests/language_2/await/future_test.dart b/tests/language_2/await/future_test.dart
deleted file mode 100644
index 67af0b259fa..00000000000
--- a/tests/language_2/await/future_test.dart
+++ /dev/null
@@ -1,239 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=
-// VMOptions=--optimization-counter-threshold=20
-
-import 'package:expect/expect.dart';
-import "package:async_helper/async_helper.dart";
-
-import 'dart:async';
-
-// It does not matter where a future is generated.
-bar(p) async => p;
-baz(p) => new Future(() => p);
-
-foo() async {
-  var b = 0;
-  for (int i = 0; i < 10; i++) {
-    b += (await bar(1)) + (await baz(2));
-  }
-  return b;
-}
-
-faa() async => (await bar('faa')).length;
-
-quaz(p) async {
-  var x = 0;
-  try {
-    for (var j = 0; j < 10; j++) {
-      x += await baz(j);
-    }
-    return x;
-  } finally {
-    Expect.equals(x, 45);
-    return p;
-  }
-}
-
-quazz() async {
-  var x = 0;
-  try {
-    try {
-      x = await bar(1);
-      throw x;
-    } catch (e1) {
-      var y = await baz(e1 + 1);
-      throw y;
-    }
-  } catch (e2) {
-    return e2;
-  }
-}
-
-nesting() async {
-  try {
-    try {
-      var x = 1;
-      var y = () async {
-        try {
-          var z = (await bar(3)) + x;
-          throw z;
-        } catch (e1) {
-          return e1;
-        }
-      };
-      var a = await y();
-      throw a;
-    } catch (e2) {
-      throw e2 + 1;
-    }
-  } catch (e3) {
-    return e3;
-  }
-}
-
-awaitAsUnary(a, b) async {
-  return await a + await b;
-}
-
-awaitIf(p) async {
-  if (p < (await bar(5))) {
-    return "p<5";
-  } else {
-    return "p>=5";
-  }
-}
-
-awaitNestedIf(p, q) async {
-  if (p == (await bar(5))) {
-    if (q < (await bar(7))) {
-      return "q<7";
-    } else {
-      return "q>=7";
-    }
-  } else {
-    return "p!=5";
-  }
-  return "!";
-}
-
-awaitElseIf(p) async {
-  if (p > (await bar(5))) {
-    return "p>5";
-  } else if (p < (await bar(5))) {
-    return "p<5";
-  } else {
-    return "p==5";
-  }
-  return "!";
-}
-
-awaitReturn() async {
-  return await bar(17);
-}
-
-awaitSwitch() async {
-  switch (await bar(3)) {
-    case 1:
-      return 1;
-      break;
-    case 3:
-      return 3;
-      break;
-    default:
-      return -1;
-  }
-}
-
-awaitNestedWhile(int i, int j) async {
-  int savedJ = j;
-  var decI = () async {
-    return i--;
-  };
-  var decJ = () async {
-    return j--;
-  };
-  var k = 0;
-  while ((await decI()) > 0) {
-    j = savedJ;
-    while (0 < (await decJ())) {
-      k++;
-    }
-  }
-  return k;
-}
-
-awaitNestedDoWhile(int i, int j) async {
-  int savedJ = j;
-  var decI = () async {
-    return i--;
-  };
-  var decJ = () async {
-    return j--;
-  };
-  var k = 0;
-  do {
-    do {
-      k++;
-    } while (0 < (await decI()));
-  } while ((await decJ()) > 0);
-  return k;
-}
-
-awaitFor() async {
-  var asyncInc = (p) async => p + 1;
-  var k = 0;
-  for (int j = (await bar(0)), i = (await bar(1));
-      j < (await bar(5));
-      j = (await asyncInc(j)), i = (await asyncInc(i))) {
-    k += i;
-    k += j;
-  }
-  return k;
-}
-
-awaitForIn() async {
-  var list = ['a', 'b', 'c'];
-  var k = '';
-  for (var c in (await bar(list))) {
-    k += c;
-  }
-  return k;
-}
-
-test() async {
-  var result;
-  for (int i = 0; i < 10; i++) {
-    result = await foo();
-    Expect.equals(30, result);
-    result = await faa();
-    Expect.equals(3, result);
-    result = await quaz(17);
-    Expect.equals(17, result);
-    result = await quazz();
-    Expect.equals(2, result);
-    result = await nesting();
-    Expect.equals(5, result);
-    result = await awaitIf(3);
-    Expect.equals("p<5", result);
-    result = await awaitIf(5);
-    Expect.equals("p>=5", result);
-    result = await awaitNestedIf(5, 3);
-    Expect.equals("q<7", result);
-    result = await awaitNestedIf(5, 8);
-    Expect.equals("q>=7", result);
-    result = await awaitNestedIf(3, 8);
-    Expect.equals("p!=5", result);
-    result = await awaitReturn();
-    Expect.equals(17, result);
-    result = await awaitSwitch();
-    Expect.equals(3, result);
-    result = await awaitElseIf(6);
-    Expect.equals("p>5", result);
-    result = await awaitElseIf(4);
-    Expect.equals("p<5", result);
-    result = await awaitElseIf(5);
-    Expect.equals("p==5", result);
-    result = await awaitNestedWhile(5, 3);
-    Expect.equals(15, result);
-    result = await awaitNestedWhile(4, 6);
-    Expect.equals(24, result);
-    result = await awaitAsUnary(bar(1), bar(2));
-    Expect.equals(3, result);
-    result = await awaitFor();
-    Expect.equals(25, result);
-    result = await awaitForIn();
-    Expect.equals('abc', result);
-  }
-}
-
-main() {
-  asyncStart();
-  test().then((_) {
-    asyncEnd();
-  });
-}
diff --git a/tests/language_2/await/in_cascade_test.dart b/tests/language_2/await/in_cascade_test.dart
deleted file mode 100644
index 86bda2a834c..00000000000
--- a/tests/language_2/await/in_cascade_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import 'package:expect/expect.dart';
-
-class C {
-  Future<List<int>> m() async => []..add(await _m());
-  Future<int> _m() async => 42;
-}
-
-main() async {
-  Expect.equals((await new C().m()).first, 42);
-}
diff --git a/tests/language_2/await/nonfuture_test.dart b/tests/language_2/await/nonfuture_test.dart
deleted file mode 100644
index 26c64d5284d..00000000000
--- a/tests/language_2/await/nonfuture_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--optimization-counter-threshold=20
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-var X = 0;
-
-foo() async {
-  Expect.equals(X, 0);
-  await 5;
-  Expect.equals(X, 10);
-  return await 499;
-}
-
-main() {
-  asyncStart();
-  var f = foo();
-  f.then((res) {
-    Expect.equals(499, res);
-    asyncEnd();
-  });
-  X = 10;
-}
diff --git a/tests/language_2/await/null_aware_test.dart b/tests/language_2/await/null_aware_test.dart
deleted file mode 100644
index 9c6b273da77..00000000000
--- a/tests/language_2/await/null_aware_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue dartbug.com/24392
-
-import 'package:expect/expect.dart';
-import 'dart:async';
-
-Future<int> f() async {
-  // Unreachable.
-  Expect.isTrue(false);
-}
-
-main() async {
-  int x = 1;
-  x ??= await f();
-  Expect.equals(1, x);
-
-  int y = 1;
-  y = y ?? await f();
-  Expect.equals(1, y);
-}
diff --git a/tests/language_2/await/postfix_expr_test.dart b/tests/language_2/await/postfix_expr_test.dart
deleted file mode 100644
index 787ebab7343..00000000000
--- a/tests/language_2/await/postfix_expr_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-post0(a) async {
-  return await a++;
-}
-
-post1(a) async {
-  return await a++ + await a++;
-}
-
-pref0(a) async {
-  return await ++a;
-}
-
-pref1(a) async {
-  return await ++a + await ++a;
-}
-
-sum(a) async {
-  var s = 0;
-  for (int i = 0; i < a.length; /* nothing */) {
-    s += a[await i++];
-  }
-  return s;
-}
-
-// Adapted from repro case for issue 22875.
-sum2(n) async {
-  int i, s = 0;
-  for (i = 1; i <= n; await i++) {
-    // The loop-local variable j was necessary for the crash in 22785.
-    var j = await i;
-    s += j;
-  }
-  return s;
-}
-
-test() async {
-  Expect.equals(10, await post0(10));
-  Expect.equals(21, await post1(10));
-  Expect.equals(11, await pref0(10));
-  Expect.equals(23, await pref1(10));
-  Expect.equals(10, await sum([1, 2, 3, 4]));
-  Expect.equals(10, await sum2(4));
-}
-
-main() {
-  asyncStart();
-  test().then((_) {
-    asyncEnd();
-  });
-}
diff --git a/tests/language_2/await/regression_test.dart b/tests/language_2/await/regression_test.dart
deleted file mode 100644
index 1bd365db575..00000000000
--- a/tests/language_2/await/regression_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-// @dart = 2.9
-
-import 'dart:async';
-import 'package:expect/expect.dart';
-
-later(vodka) => new Future.value(vodka);
-
-manana(tequila) async => tequila;
-
-// Regression test for issue 21536.
-testNestedFunctions() async {
-  var a = await later('Asterix').then((tonic) {
-    return later(tonic);
-  });
-  var o = await manana('Obelix').then(manana);
-  Expect.equals("$a and $o", "Asterix and Obelix");
-}
-
-addLater({a, b}) => new Future.value(a + b);
-
-// Regression test for issue 21480.
-testNamedArguments() async {
-  var sum = await addLater(a: 5, b: 10);
-  Expect.equals(sum, 15);
-  sum = await addLater(b: 11, a: -11);
-  Expect.equals(sum, 0);
-}
-
-testSideEffects() async {
-  Future foo(int a1, int a2) {
-    Expect.equals(10, a1);
-    Expect.equals(11, a2);
-    return new Future.value();
-  }
-
-  int a = 10;
-  await foo(a++, a++);
-  Expect.equals(12, a);
-}
-
-main() async {
-  testNestedFunctions();
-  testNamedArguments();
-  testSideEffects();
-}
diff --git a/tests/language_2/await/started_immediately_test.dart b/tests/language_2/await/started_immediately_test.dart
deleted file mode 100644
index 28361d24e58..00000000000
--- a/tests/language_2/await/started_immediately_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that an async function does start immediately.
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-var x = 0;
-
-foo() async {
-  x++;
-  await 1;
-  x++;
-}
-
-void main() {
-  asyncStart();
-  foo().then((_) => Expect.equals(2, x)).whenComplete(asyncEnd);
-  Expect.equals(1, x);
-}
diff --git a/tests/language_2/await_type_error_test.dart b/tests/language_2/await_type_error_test.dart
deleted file mode 100644
index d680d5d0cf3..00000000000
--- a/tests/language_2/await_type_error_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-main() async {
-  int i = 1;
-  Future<int> fi = Future<int>.value(i);
-  Future<Future<int>> ffi = Future<Future<int>>.value(fi);
-  Future<Future<Future<int>>> fffi = Future<Future<Future<int>>>.value(ffi);
-
-  String v1 = await i;
-  //                ^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-
-  String v2 = await fi;
-  //                ^^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-
-  int v3 = await ffi;
-  //             ^^^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-
-  Future<int> v4 = await fffi;
-  //                     ^^^^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-
-  Future<int> v5 = await i;
-  //                     ^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-
-  Future<int> v6 = await fi;
-  //                     ^^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-
-  Future<FutureOr<int>> v7 = await fi;
-  //                               ^^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-
-  Future<Future<int>> v8 = await ffi;
-  //                             ^^^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-}
diff --git a/tests/language_2/await_type_test.dart b/tests/language_2/await_type_test.dart
deleted file mode 100644
index 396b70e1dea..00000000000
--- a/tests/language_2/await_type_test.dart
+++ /dev/null
@@ -1,85 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-void main() async {
-  asyncStart();
-
-  // Sanity check.
-  Expect.equals(type<int>(), type(1));
-
-  {
-    int v = null; //                     // Variable with type T.
-    var f = await v; //                  // Variable with type FLATTEN(T).
-    Expect.equals(type<int>(), type(f)); // Dynamic check of static type of f.
-    int s = f; //                        // Static check upper bound of f.
-    f = 1; //                            // Static check lower bound of f.
-    s.toString(); //                     // Avoid "unused variable" warning.
-  }
-
-  {
-    Future<int> v = null;
-    var f = await v;
-    Expect.equals(type<int>(), type(f));
-    int s = f;
-    f = 1;
-    s.toString();
-  }
-
-  {
-    Future<Future<int>> v = null;
-    var f = await v;
-    Expect.equals(type<Future<int>>(), type(f));
-    Future<int> s = f;
-    f = Future<int>.value(1);
-    s.toString();
-  }
-
-  {
-    FutureOr<int> v = null;
-    var f = await v;
-    Expect.equals(type<int>(), type(f));
-    int s = f;
-    f = 1;
-    s.toString();
-  }
-
-  {
-    FutureOr<Future<int>> v = null;
-    var f = await v;
-    Expect.equals(type<Future<int>>(), type(f));
-    Future<int> s = f;
-    f = Future<int>.value(1);
-    s.toString();
-  }
-
-  {
-    Future<FutureOr<int>> v = null;
-    var f = await v;
-    Expect.equals(type<FutureOr<int>>(), type(f));
-    FutureOr<int> s = f;
-    f = 1;
-    f = Future<int>.value(1);
-    s.toString();
-  }
-
-  {
-    FutureOr<FutureOr<int>> v = null;
-    var f = await v;
-    Expect.equals(type<FutureOr<int>>(), type(f));
-    FutureOr<int> s = f;
-    f = 1;
-    f = Future<int>.value(1);
-    s.toString();
-  }
-
-  asyncEnd();
-}
-
-Type type<T>([T of]) => T;
diff --git a/tests/language_2/bool/bool_test.dart b/tests/language_2/bool/bool_test.dart
deleted file mode 100644
index 642e2eff85b..00000000000
--- a/tests/language_2/bool/bool_test.dart
+++ /dev/null
@@ -1,212 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class BoolTest {
-  static void testEquality() {
-    Expect.equals(true, true);
-    Expect.equals(false, false);
-    Expect.isTrue(identical(true, true));
-    Expect.isFalse(identical(true, false));
-    Expect.isTrue(identical(false, false));
-    Expect.isFalse(identical(false, true));
-    Expect.isFalse(!identical(true, true));
-    Expect.isTrue(!identical(true, false));
-    Expect.isFalse(!identical(false, false));
-    Expect.isTrue(!identical(false, true));
-    Expect.isTrue(true == true);
-    Expect.isFalse(true == false);
-    Expect.isTrue(false == false);
-    Expect.isFalse(false == true);
-    Expect.isFalse(true != true);
-    Expect.isTrue(true != false);
-    Expect.isFalse(false != false);
-    Expect.isTrue(false != true);
-    Expect.isTrue(identical(true, (true == true)));
-    Expect.isTrue(identical(false, (true == false)));
-    Expect.isTrue(identical(true, (false == false)));
-    Expect.isTrue(identical(false, (false == true)));
-    Expect.isFalse(!identical(true, (true == true)));
-    Expect.isFalse(!identical(false, (true == false)));
-    Expect.isFalse(!identical(true, (false == false)));
-    Expect.isFalse(!identical(false, (false == true)));
-    Expect.isFalse(identical(false, (true == true)));
-    Expect.isFalse(identical(true, (true == false)));
-    Expect.isFalse(identical(false, (false == false)));
-    Expect.isFalse(identical(true, (false == true)));
-    Expect.isTrue(!identical(false, (true == true)));
-    Expect.isTrue(!identical(true, (true == false)));
-    Expect.isTrue(!identical(false, (false == false)));
-    Expect.isTrue(!identical(true, (false == true)));
-    // Expect.equals could rely on a broken boolean equality.
-    if (true == false) {
-      throw "Expect.equals broken";
-    }
-    if (false == true) {
-      throw "Expect.equals broken";
-    }
-    if (identical(true, false)) {
-      throw "Expect.equals broken";
-    }
-    if (identical(false, true)) {
-      throw "Expect.equals broken";
-    }
-    if (true == true) {} else {
-      throw "Expect.equals broken";
-    }
-    if (false == false) {} else {
-      throw "Expect.equals broken";
-    }
-    if (identical(true, true)) {} else {
-      throw "Expect.equals broken";
-    }
-    if (identical(false, false)) {} else {
-      throw "Expect.equals broken";
-    }
-    if (true != false) {} else {
-      throw "Expect.equals broken";
-    }
-    if (false != true) {} else {
-      throw "Expect.equals broken";
-    }
-    if (!identical(true, false)) {} else {
-      throw "Expect.equals broken";
-    }
-    if (!identical(false, true)) {} else {
-      throw "Expect.equals broken";
-    }
-    if (true != true) {
-      throw "Expect.equals broken";
-    }
-    if (false != false) {
-      throw "Expect.equals broken";
-    }
-    if (!identical(true, true)) {
-      throw "Expect.equals broken";
-    }
-    if (!identical(false, false)) {
-      throw "Expect.equals broken";
-    }
-  }
-
-  static void testToString() {
-    Expect.equals("true", true.toString());
-    Expect.equals("false", false.toString());
-  }
-
-  static void testNegate(isTrue, isFalse) {
-    Expect.equals(true, !false);
-    Expect.equals(false, !true);
-    Expect.equals(true, !isFalse);
-    Expect.equals(false, !isTrue);
-  }
-
-  static void testLogicalOp() {
-    testOr(a, b, onTypeError) {
-      try {
-        return a || b;
-      } on TypeError catch (t) {
-        return onTypeError;
-      }
-    }
-
-    testAnd(a, b, onTypeError) {
-      try {
-        return a && b;
-      } on TypeError catch (t) {
-        return onTypeError;
-      }
-    }
-
-    var isTrue = true;
-    var isFalse = false;
-    Expect.equals(true, testAnd(isTrue, isTrue, false));
-    Expect.equals(false, testAnd(isTrue, 0, false));
-    Expect.equals(false, testAnd(isTrue, 1, false));
-    Expect.equals(false, testAnd(isTrue, "true", false));
-    Expect.equals(false, testAnd(0, isTrue, false));
-    Expect.equals(false, testAnd(1, isTrue, false));
-
-    Expect.equals(true, testOr(isTrue, isTrue, false));
-    Expect.equals(true, testOr(isFalse, isTrue, false));
-    Expect.equals(true, testOr(isTrue, isFalse, false));
-    Expect.equals(true, testOr(isTrue, 0, true));
-    Expect.equals(true, testOr(isTrue, 1, true));
-    Expect.equals(false, testOr(isFalse, 0, false));
-    Expect.equals(false, testOr(isFalse, 1, false));
-    Expect.equals(true, testOr(0, isTrue, true));
-    Expect.equals(true, testOr(1, isTrue, true));
-    Expect.equals(false, testOr(0, isFalse, false));
-    Expect.equals(false, testOr(1, isFalse, false));
-
-    // Test side effects.
-    int trueCount = 0, falseCount = 0;
-
-    trueFunc() {
-      trueCount++;
-      return true;
-    }
-
-    falseFunc() {
-      falseCount++;
-      return false;
-    }
-
-    Expect.equals(0, trueCount);
-    Expect.equals(0, falseCount);
-
-    trueFunc() && trueFunc();
-    Expect.equals(2, trueCount);
-    Expect.equals(0, falseCount);
-
-    trueCount = falseCount = 0;
-    falseFunc() && trueFunc();
-    Expect.equals(0, trueCount);
-    Expect.equals(1, falseCount);
-
-    trueCount = falseCount = 0;
-    trueFunc() && falseFunc();
-    Expect.equals(1, trueCount);
-    Expect.equals(1, falseCount);
-
-    trueCount = falseCount = 0;
-    falseFunc() && falseFunc();
-    Expect.equals(0, trueCount);
-    Expect.equals(1, falseCount);
-
-    trueCount = falseCount = 0;
-    trueFunc() || trueFunc();
-    Expect.equals(1, trueCount);
-    Expect.equals(0, falseCount);
-
-    trueCount = falseCount = 0;
-    falseFunc() || trueFunc();
-    Expect.equals(1, trueCount);
-    Expect.equals(1, falseCount);
-
-    trueCount = falseCount = 0;
-    trueFunc() || falseFunc();
-    Expect.equals(1, trueCount);
-    Expect.equals(0, falseCount);
-
-    trueCount = falseCount = 0;
-    falseFunc() || falseFunc();
-    Expect.equals(0, trueCount);
-    Expect.equals(2, falseCount);
-  }
-
-  static void testMain() {
-    testEquality();
-    testNegate(true, false);
-    testToString();
-    testLogicalOp();
-  }
-}
-
-main() {
-  BoolTest.testMain();
-}
diff --git a/tests/language_2/bool/check_test.dart b/tests/language_2/bool/check_test.dart
deleted file mode 100644
index 26faa725522..00000000000
--- a/tests/language_2/bool/check_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// [NNBD non-migrated]: This file is migrated to check_strong_test.dart and
-// check_weak_test.dart.
-import "package:expect/expect.dart";
-
-main() {
-  Expect.throwsAssertionError(() {
-    if (null) {}
-  });
-
-  Expect.throwsTypeError(() {
-    if ("true" as dynamic) {}
-  });
-}
diff --git a/tests/language_2/bool/condition_check_test.dart b/tests/language_2/bool/condition_check_test.dart
deleted file mode 100644
index 4ed7925708c..00000000000
--- a/tests/language_2/bool/condition_check_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that passing `null` for a boolean typed parameter will still cause
-// a boolean conversion error when used in a condition.
-
-// [NNBD non-migrated]: This file is migrated to condition_strong_test.dart and
-// condition_weak_test.dart.
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-String check({bool a, bool b}) {
-  String aString = a ? 'a' : '';
-  String bString = b ? 'b' : '';
-  return '$aString$bString';
-}
-
-class Class {
-  final String field;
-  Class({bool a: false, bool b: true}) : this.field = check(a: a, b: b);
-}
-
-main() {
-  Expect.throwsAssertionError(() => new Class(a: null, b: null).field);
-}
diff --git a/tests/language_2/bool/conditional_expression_condition_context_error_test.dart b/tests/language_2/bool/conditional_expression_condition_context_error_test.dart
deleted file mode 100644
index ade91d554a3..00000000000
--- a/tests/language_2/bool/conditional_expression_condition_context_error_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-T castObject<T>(Object value) => value as T;
-
-main() {
-  print((castObject(true)..whatever()) ? 1 : 2);
-  //                       ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_METHOD
-  // [cfe] The method 'whatever' isn't defined for the class 'bool'.
-}
diff --git a/tests/language_2/bool/has_environment_not_new_test.dart b/tests/language_2/bool/has_environment_not_new_test.dart
deleted file mode 100644
index fdae175596a..00000000000
--- a/tests/language_2/bool/has_environment_not_new_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.throws(() => new bool.hasEnvironment("Anything"));
-}
diff --git a/tests/language_2/bool/has_environment_test.dart b/tests/language_2/bool/has_environment_test.dart
deleted file mode 100644
index df21062f00f..00000000000
--- a/tests/language_2/bool/has_environment_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// SharedOptions=-Da= -Db=b -Dc=Something
-
-import 'package:expect/expect.dart';
-
-main() {
-  Expect.isTrue(const bool.hasEnvironment('dart.library.core'));
-  Expect.isTrue(const bool.hasEnvironment('a'));
-  Expect.isTrue(const bool.hasEnvironment('b'));
-  Expect.isTrue(const bool.hasEnvironment('c'));
-  Expect.isFalse(const bool.hasEnvironment('d'));
-}
diff --git a/tests/language_2/call/argument_inference_test.dart b/tests/language_2/call/argument_inference_test.dart
deleted file mode 100644
index bf5d6ecb2d7..00000000000
--- a/tests/language_2/call/argument_inference_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  call(a) => a is num;
-}
-
-main() {
-  Expect.isTrue(new A().call(42));
-  Expect.isFalse(new A()('foo'));
-}
diff --git a/tests/language_2/call/call_test.dart b/tests/language_2/call/call_test.dart
deleted file mode 100644
index c912710dba4..00000000000
--- a/tests/language_2/call/call_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization_counter_threshold=10 --no-background_compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  bar(a) {
-    return a is String;
-  }
-
-  for (var i = 0; i < 20; i++) {
-    Expect.isFalse(bar(1));
-    Expect.isTrue(bar.call('foo'));
-  }
-
-  opt_arg([a = "a"]) => a is String;
-
-  for (var i = 0; i < 20; i++) {
-    Expect.isFalse(opt_arg(1));
-    Expect.isFalse(opt_arg.call(1));
-    Expect.isTrue(opt_arg());
-    Expect.isTrue(opt_arg.call());
-    Expect.isTrue(opt_arg("b"));
-    Expect.isTrue(opt_arg.call("b"));
-  }
-
-  named_arg({x: 11, y: 22}) => "$x$y";
-
-  for (var i = 0; i < 20; i++) {
-    Expect.equals("1122", named_arg());
-    Expect.equals("1122", named_arg.call());
-    Expect.equals("4455", named_arg(y: 55, x: 44));
-    Expect.equals("4455", named_arg.call(y: 55, x: 44));
-    Expect.equals("4455", named_arg(x: 44, y: 55));
-    Expect.equals("4455", named_arg.call(x: 44, y: 55));
-  }
-
-  Expect.throwsNoSuchMethodError(() => (bar as dynamic).call());
-  Expect.throwsNoSuchMethodError(() => (opt_arg as dynamic).call(x: "p"));
-  Expect.throwsNoSuchMethodError(() => (named_arg as dynamic).call("p", "q"));
-}
diff --git a/tests/language_2/call/closurization_test.dart b/tests/language_2/call/closurization_test.dart
deleted file mode 100644
index 32236430730..00000000000
--- a/tests/language_2/call/closurization_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization_counter_threshold=10 --no-background_compilation
-
-// @dart = 2.9
-
-// VMOptions=--lazy-dispatchers
-// VMOptions=--no-lazy-dispatchers
-
-import "package:expect/expect.dart";
-
-main() {
-  bar(a) {
-    return a is String;
-  }
-
-  var bar_tearOff = bar.call;
-
-  for (var i = 0; i < 20; i++) {
-    Expect.isFalse(bar_tearOff(1));
-    Expect.isTrue(bar_tearOff.call('foo'));
-    Expect.isFalse(bar_tearOff.call(1));
-    Expect.isTrue(bar_tearOff('foo'));
-  }
-
-  opt_arg([a = "a"]) => a is String;
-  var opt_arg_tearOff = opt_arg.call;
-
-  for (var i = 0; i < 20; i++) {
-    Expect.isFalse(opt_arg_tearOff(1));
-    Expect.isFalse(opt_arg_tearOff.call(1));
-    Expect.isTrue(opt_arg_tearOff());
-    Expect.isTrue(opt_arg_tearOff.call());
-    Expect.isTrue(opt_arg_tearOff("b"));
-    Expect.isTrue(opt_arg_tearOff.call("b"));
-  }
-
-  named_arg({x: 11, y: 22}) => "$x$y";
-  var named_arg_tearOff = named_arg.call;
-
-  for (var i = 0; i < 20; i++) {
-    Expect.equals("1122", named_arg_tearOff());
-    Expect.equals("1122", named_arg_tearOff.call());
-    Expect.equals("4455", named_arg_tearOff(y: 55, x: 44));
-    Expect.equals("4455", named_arg_tearOff.call(y: 55, x: 44));
-    Expect.equals("4455", named_arg_tearOff(x: 44, y: 55));
-    Expect.equals("4455", named_arg_tearOff.call(x: 44, y: 55));
-  }
-
-  // In order to test runtime behavior of calling with invalid arguments,
-  // we cast to dynamic to make the type system forget about the actual types.
-  dynamic bar_tearOff_d = bar_tearOff;
-  dynamic opt_arg_tearOff_d = opt_arg_tearOff;
-  dynamic named_arg_tearOff_d = named_arg_tearOff;
-  Expect.throws(() => bar_tearOff_d.call());
-  Expect.throwsNoSuchMethodError(() => opt_arg_tearOff_d.call(x: "p"));
-  Expect.throwsNoSuchMethodError(() => named_arg_tearOff_d.call("p", "q"));
-}
diff --git a/tests/language_2/call/constructor_on_unresolvable_class_runtime_test.dart b/tests/language_2/call/constructor_on_unresolvable_class_runtime_test.dart
deleted file mode 100644
index 27064a689a5..00000000000
--- a/tests/language_2/call/constructor_on_unresolvable_class_runtime_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Check that calling a constructor of a class that cannot be resolved causes
-// compile error.
-
-import "package:expect/expect.dart";
-import 'dart:math';
-
-main() {
-
-
-
-}
diff --git a/tests/language_2/call/constructor_on_unresolvable_class_test.dart b/tests/language_2/call/constructor_on_unresolvable_class_test.dart
deleted file mode 100644
index a8e22776360..00000000000
--- a/tests/language_2/call/constructor_on_unresolvable_class_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that calling a constructor of a class that cannot be resolved causes
-// compile error.
-
-import "package:expect/expect.dart";
-import 'dart:math';
-
-main() {
-  new A();
-  //  ^
-  // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-  // [cfe] Couldn't find constructor 'A'.
-  new A.foo();
-  //  ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-  // [cfe] Couldn't find constructor 'A.foo'.
-  new lib.A();
-  //  ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-  // [cfe] Couldn't find constructor 'lib.A'.
-}
diff --git a/tests/language_2/call/dynamic_call_through_getter_test.dart b/tests/language_2/call/dynamic_call_through_getter_test.dart
deleted file mode 100644
index 48dc8ce283d..00000000000
--- a/tests/language_2/call/dynamic_call_through_getter_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Reduction of https://github.com/flutter/flutter/issues/116405
-
-import "package:expect/expect.dart";
-
-class Foo {
-  Foo(this.bar);
-  Bar bar;
-}
-
-class Bar {
-  int call(int x) => x * 2;
-}
-
-@pragma("vm:never-inline")
-@pragma("dart2js:noInline")
-int doCallThroughGetter(dynamic foo, int x) {
-  return foo.bar(x);
-}
-
-void main() {
-  Expect.equals(4, doCallThroughGetter(Foo(Bar()), 2));
-}
diff --git a/tests/language_2/call/function2_test.dart b/tests/language_2/call/function2_test.dart
deleted file mode 100644
index cdb61c1b1dd..00000000000
--- a/tests/language_2/call/function2_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-typedef Object Func(Object x);
-
-class Bar {
-  int x = 42;
-
-  Object call(Object x) {
-    return 'Bar $x';
-  }
-}
-
-Object baz(Object x) => x;
-
-var map = <String, Func>{'baz': baz, 'bar': new Bar()};
-
-Object test(String str, Object arg) {
-  return map[str].call(arg);
-}
-
-void main() {
-  Expect.equals(42, test('baz', 42));
-  Expect.equals('Bar 42', test('bar', 42));
-}
diff --git a/tests/language_2/call/function_apply_test.dart b/tests/language_2/call/function_apply_test.dart
deleted file mode 100644
index 1a1180f22ff..00000000000
--- a/tests/language_2/call/function_apply_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  call({a: 42}) {
-    return 499 + a;
-  }
-}
-
-main() {
-  Expect.equals(497, Function.apply(new A(), [], {#a: -2}));
-}
diff --git a/tests/language_2/call/function_test.dart b/tests/language_2/call/function_test.dart
deleted file mode 100644
index 3daecf4712a..00000000000
--- a/tests/language_2/call/function_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-Object bar(Object x) {
-  return x;
-}
-
-Function baz = bar;
-
-dynamic dyn = bar;
-
-class Foo {
-  Object call(Object x) {
-    return 'Foo$x';
-  }
-}
-
-typedef Object FooType(Object x);
-FooType foo = bar;
-
-void main() {
-  Expect.equals(42, bar.call(42));
-  Expect.equals(42, baz.call(42));
-  Expect.equals(42, foo.call(42));
-  Expect.equals(42, dyn.call(42));
-  Expect.equals(42, bar(42));
-  Expect.equals(42, baz(42));
-  Expect.equals(42, foo(42));
-  Expect.equals(42, dyn(42));
-
-  baz = new Foo();
-  foo = new Foo();
-  dyn = new Foo();
-  Expect.equals('Foo42', baz.call(42));
-  Expect.equals('Foo42', foo.call(42));
-  Expect.equals('Foo42', dyn.call(42));
-  Expect.equals('Foo42', baz(42));
-  Expect.equals('Foo42', foo(42));
-  Expect.equals('Foo42', dyn(42));
-
-  var s = (FooType).toString();
-  var minified = s != 'FooType'; // dart2js --minify has minified names.
-  dynamic d = null;
-  Expect.throws(() => d(),
-      (e) => e is NoSuchMethodError && (minified || '$e'.contains('call')));
-}
diff --git a/tests/language_2/call/implicit_tearoff_assignment_test.dart b/tests/language_2/call/implicit_tearoff_assignment_test.dart
deleted file mode 100644
index 87ccd155d58..00000000000
--- a/tests/language_2/call/implicit_tearoff_assignment_test.dart
+++ /dev/null
@@ -1,144 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// This test ensures that when a `.call` tearoff occurs on the right hand side
-// of an assignment, the resulting expression has an appropriate type.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import '../static_type_helper.dart';
-
-dynamic _topLevelPropertySetValue;
-
-set topLevelProperty(void Function() value) {
-  Expect.isNull(_topLevelPropertySetValue);
-  _topLevelPropertySetValue = value;
-}
-
-class C {
-  static dynamic _staticPropertySetValue;
-
-  void call() {}
-
-  static set staticProperty(void Function() value) {
-    Expect.isNull(_staticPropertySetValue);
-    _staticPropertySetValue = value;
-  }
-}
-
-class Base {
-  dynamic _basePropertySetValue;
-
-  set baseProperty(void Function() value) {
-    Expect.isNull(_basePropertySetValue);
-    _basePropertySetValue = value;
-  }
-}
-
-class Derived extends Base {
-  dynamic _indexSetValue;
-  dynamic _instanceSetValue;
-
-  operator []=(int index, void Function() value) {
-    Expect.isNull(_indexSetValue);
-    _indexSetValue = value;
-  }
-
-  set instanceProperty(void Function() value) {
-    Expect.isNull(_instanceSetValue);
-    _instanceSetValue = value;
-  }
-
-  void testSuperPropertySet() {
-    Expect.type<void Function()>((super.baseProperty = C())
-      ..expectStaticType<Exactly<void Function()>>());
-    Expect.type<void Function()>(super._basePropertySetValue);
-  }
-}
-
-class Extended {
-  dynamic _extensionIndexSetValue;
-  dynamic _extensionPropertySetValue;
-}
-
-extension on Extended {
-  operator []=(int index, void Function() value) {
-    Expect.isNull(_extensionIndexSetValue);
-    _extensionIndexSetValue = value;
-  }
-
-  set extensionProperty(void Function() value) {
-    Expect.isNull(_extensionPropertySetValue);
-    _extensionPropertySetValue = value;
-  }
-}
-
-void testExtensionIndexSet() {
-  Extended e = Extended();
-  Expect.type<void Function()>(
-      (e[0] = C())..expectStaticType<Exactly<void Function()>>());
-  Expect.type<void Function()>(e._extensionIndexSetValue);
-}
-
-void testExtensionSet() {
-  Extended e = Extended();
-  Expect.type<void Function()>((e.extensionProperty = C())
-    ..expectStaticType<Exactly<void Function()>>());
-  Expect.type<void Function()>(e._extensionPropertySetValue);
-}
-
-void testIndexSet() {
-  Derived d = Derived();
-  Expect.type<void Function()>(
-      (d[0] = C())..expectStaticType<Exactly<void Function()>>());
-  Expect.type<void Function()>(d._indexSetValue);
-}
-
-void testInstanceSet() {
-  Derived d = Derived();
-  Expect.type<void Function()>(
-      (d.instanceProperty = C())..expectStaticType<Exactly<void Function()>>());
-  Expect.type<void Function()>(d._instanceSetValue);
-}
-
-void testNullAwarePropertySet() {
-  Derived d = Derived();
-  Expect.type<void Function()>((d?.instanceProperty = C())
-    ..expectStaticType<Exactly<void Function()>>());
-  Expect.type<void Function()>(d._instanceSetValue);
-}
-
-void testStaticSet() {
-  C._staticPropertySetValue = null;
-  Expect.type<void Function()>(
-      (C.staticProperty = C())..expectStaticType<Exactly<void Function()>>());
-  Expect.type<void Function()>(C._staticPropertySetValue);
-}
-
-void testTopLevelSet() {
-  _topLevelPropertySetValue = null;
-  Expect.type<void Function()>(
-      (topLevelProperty = C())..expectStaticType<Exactly<void Function()>>());
-  Expect.type<void Function()>(_topLevelPropertySetValue);
-}
-
-void testVariableSet() {
-  void Function() f;
-  Expect.type<void Function()>(
-      (f = C())..expectStaticType<Exactly<void Function()>>());
-  Expect.type<void Function()>(f);
-}
-
-main() {
-  testExtensionIndexSet();
-  testExtensionSet();
-  testIndexSet();
-  testInstanceSet();
-  testStaticSet();
-  Derived().testSuperPropertySet();
-  testTopLevelSet();
-  testVariableSet();
-}
diff --git a/tests/language_2/call/implicit_tearoff_error_test.dart b/tests/language_2/call/implicit_tearoff_error_test.dart
deleted file mode 100644
index 2de93470506..00000000000
--- a/tests/language_2/call/implicit_tearoff_error_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// This test exercises a corner case of implicit `.call` tearoffs that is
-// easiest to see through its effect on erroneous code.
-
-// NOTICE: This test checks the currently implemented behavior, even though the
-// implemented behavior does not match the language specification.  Until an
-// official decision has been made about whether to change the implementation to
-// match the specification, or vice versa, this regression test is intended to
-// protect against inadvertent implementation changes.
-
-// @dart = 2.9
-
-import '../static_type_helper.dart';
-
-class A {}
-
-class C extends A {
-  void call() {}
-}
-
-class D extends A {
-  void call() {}
-}
-
-void testConditionalExpressionWithUnrelatedClasses(bool b, C c, D d) {
-  // Verify that `b ? c : d` is not interpreted as `(b ? c.call : d.call)` by
-  // confirming that it's an error to use it in a function context (because
-  // `b ? c : d` has static type `A`).
-  context<void Function()>(b ? c : d);
-  //                       ^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  //                         ^
-  // [cfe] The argument type 'A' can't be assigned to the parameter type 'void Function()'.
-}
diff --git a/tests/language_2/call/implicit_tearoff_exceptions_test.dart b/tests/language_2/call/implicit_tearoff_exceptions_test.dart
deleted file mode 100644
index 5ff09e9b3ee..00000000000
--- a/tests/language_2/call/implicit_tearoff_exceptions_test.dart
+++ /dev/null
@@ -1,116 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// There are a few circumstances where implicit tear-off of `call` methods does
-// not occur; this test exercises the user-visible static analysis behaviors
-// arising from those circumstances.
-
-// NOTICE: This test checks the currently implemented behavior, even though the
-// implemented behavior does not match the language specification.  Until an
-// official decision has been made about whether to change the implementation to
-// match the specification, or vice versa, this regression test is intended to
-// protect against inadvertent implementation changes.
-
-// A note on how the tests work: in several places we use the pattern
-// `context<C>(b ? d : (E..expectStaticType<Exactly<T>>()))` (where `b` has type
-// `bool` and `d` has type `dynamic`).  This pattern ensures that `E` will be
-// type analyzed with a context of `C`, and tests that the resulting expression
-// has a type of `T`.  However, the presence of `b ? d :` at the beginning
-// ensures that the overall expression has type `dynamic`, so no assignability
-// error will occur if types `C` and `T` are different.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import '../static_type_helper.dart';
-
-class A {}
-
-class C extends A {
-  void call() {}
-  void m() {}
-}
-
-// These are top level getters rather than local variables to avoid triggering
-// flow analysis.
-bool get bTrue => true;
-bool get bFalse => false;
-
-void testCascadeTarget() {
-  C c = C();
-  // Even though the subexpression `c` has type `C` and context `void
-  // Function()`, we don't tear off `.call` for subexpressions that are the
-  // target of a cascade; instead, we tear-off `.call` on the full cascade
-  // expression.  So `c..m()` is equivalent to `(c..m()).call` (which is valid)
-  // rather than `(c.call)..m()` (which is not).
-  context<void Function()>(c..m());
-
-  // Same as above, but confirm that extra parens around `c` don't change the
-  // behavior.
-  context<void Function()>((c)..m());
-  context<void Function()>(((c))..m());
-}
-
-void testConditional() {
-  A a = A();
-  C c = C();
-  dynamic d = null;
-  // Even though the subexpression `c` has type `C` and context `void
-  // Function()`, we don't tear off `.call` for the `then` or `else`
-  // subexpressions of a conditional expression; instead, we tear off `.call`
-  // for the conditional expression as a whole (if appropriate).  So, in
-  // `(bTrue ? c : a)..expectStaticType<...>()`, no implicit tearoff of `c`
-  // occurs, and the subexpression `bTrue ? c : a` gets assigned a static type
-  // of `A`.
-  Expect.throws(() => context<void Function()>(
-      bFalse ? d : ((bTrue ? c : a)..expectStaticType<Exactly<A>>())));
-  Expect.throws(() => context<void Function()>(
-      bFalse ? d : ((bFalse ? a : c)..expectStaticType<Exactly<A>>())));
-
-  // Same as above, but confirm that extra parens around `c` don't change the
-  // behavior.
-  Expect.throws(() => context<void Function()>(
-      bFalse ? d : ((bTrue ? (c) : a)..expectStaticType<Exactly<A>>())));
-  Expect.throws(() => context<void Function()>(
-      bFalse ? d : ((bFalse ? a : (c))..expectStaticType<Exactly<A>>())));
-  Expect.throws(() => context<void Function()>(
-      bFalse ? d : ((bTrue ? ((c)) : a)..expectStaticType<Exactly<A>>())));
-  Expect.throws(() => context<void Function()>(
-      bFalse ? d : ((bFalse ? a : ((c)))..expectStaticType<Exactly<A>>())));
-}
-
-void testIfNull() {
-  A a = A();
-  A aq = null;
-  C c = C();
-  dynamic d = null;
-  // Even though the subexpression `c` has type `C` and context `void
-  // Function()`, we don't tear off `.call` for the LHS of a `??` expression;
-  // instead, we tear off `.call` for the `??` expression as a whole (if
-  // appropriate).  So, in
-  // `(c ?? a)..expectStaticType<...>()`, no implicit tearoff of `c` occurs, and
-  // the subexpression `c ?? a` gets assigned a static type of `A`.
-  Expect.throws(() => context<void Function()>(
-      bFalse ? d : ((c ?? a)..expectStaticType<Exactly<A>>())));
-  Expect.throws(() => context<void Function()>(
-      bFalse ? d : ((aq ?? c)..expectStaticType<Exactly<A>>())));
-
-  // Same as above, but confirm that extra parens around `c` don't change the
-  // behavior.
-  Expect.throws(() => context<void Function()>(
-      bFalse ? d : (((c) ?? a)..expectStaticType<Exactly<A>>())));
-  Expect.throws(() => context<void Function()>(
-      bFalse ? d : ((aq ?? (c))..expectStaticType<Exactly<A>>())));
-  Expect.throws(() => context<void Function()>(
-      bFalse ? d : ((((c)) ?? a)..expectStaticType<Exactly<A>>())));
-  Expect.throws(() => context<void Function()>(
-      bFalse ? d : ((aq ?? ((c)))..expectStaticType<Exactly<A>>())));
-}
-
-main() {
-  testCascadeTarget();
-  testConditional();
-  testIfNull();
-}
diff --git a/tests/language_2/call/implicit_tearoff_local_assignment_test.dart b/tests/language_2/call/implicit_tearoff_local_assignment_test.dart
deleted file mode 100644
index 210ace03c82..00000000000
--- a/tests/language_2/call/implicit_tearoff_local_assignment_test.dart
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// This test is the pre-null-safety variant of the null safety test
-// `implicit_tearoff_local_assignment_test.dart`, which verifies that when
-// considering whether to perform a `.call` tearoff on the RHS of an assignment,
-// the implementations use the unpromoted type of the variable (rather than the
-// promoted type).  For the pre-null-safety variant, the same logic doesn't
-// really apply, because a variable can't be promoted in a block that contains
-// an assignment to it.  But we can still test the unpromoted cases.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import '../static_type_helper.dart';
-
-class B {
-  Object call() => 'B.call called';
-}
-
-class C extends B {
-  String call() => 'C.call called';
-}
-
-void testClassUnpromoted() {
-  B x = B();
-  var y = x = C(); // No implicit tearoff of `.call`, no promotion
-  x.expectStaticType<Exactly<B>>();
-  Expect.type<C>(x);
-  Expect.equals('C.call called', x());
-  y.expectStaticType<Exactly<C>>();
-  Expect.type<C>(y);
-  Expect.equals('C.call called', y());
-}
-
-void testFunctionUnpromoted() {
-  Object f() => 'f called';
-  Object Function() x = f;
-  var y = x = B(); // Implicit tearoff of `.call`, no promotion
-  x.expectStaticType<Exactly<Object Function()>>();
-  Expect.type<Object Function()>(x);
-  Expect.equals('B.call called', x());
-  y.expectStaticType<Exactly<Object Function()>>();
-  Expect.type<Object Function()>(y);
-  Expect.equals('B.call called', y());
-}
-
-void testObjectUnpromoted() {
-  Object x = 'initial value';
-  var y = x = B(); // No implicit tearoff of `.call`, no promotion
-  x.expectStaticType<Exactly<Object>>();
-  Expect.type<B>(x);
-  Expect.equals('B.call called', (x as B)());
-  y.expectStaticType<Exactly<B>>();
-  Expect.type<B>(y);
-  Expect.equals('B.call called', y());
-}
-
-main() {
-  testClassUnpromoted();
-  testFunctionUnpromoted();
-  testObjectUnpromoted();
-}
diff --git a/tests/language_2/call/implicit_tearoff_test.dart b/tests/language_2/call/implicit_tearoff_test.dart
deleted file mode 100644
index ec30ced3c5d..00000000000
--- a/tests/language_2/call/implicit_tearoff_test.dart
+++ /dev/null
@@ -1,173 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// This test exercises all the grammar constructs for which implicit tear-off of
-// `call` methods should occur.
-
-// NOTICE: This test checks the currently implemented behavior, even though the
-// implemented behavior does not match the language specification.  Until an
-// official decision has been made about whether to change the implementation to
-// match the specification, or vice versa, this regression test is intended to
-// protect against inadvertent implementation changes.
-
-// @dart = 2.9
-
-import '../static_type_helper.dart';
-
-class B {}
-
-class C extends B {
-  void call() {}
-  void m() {}
-  void testThisExpression() {
-    context<void Function()>(this);
-  }
-}
-
-class D {
-  C operator +(other) => C();
-  C operator -() => C();
-  C instanceMethod() => C();
-  static C staticMethod() => C();
-  C get instanceGetter => C();
-}
-
-C topLevelMethod() => C();
-
-// These are top level getters rather than local variables to avoid triggering
-// flow analysis.
-bool get bTrue => true;
-bool get bFalse => false;
-
-void testAsExpression() {
-  dynamic d = C();
-  context<void Function()>(d as C);
-}
-
-void testAssignmentExpression() {
-  B b = B(); // ignore: unused_local_variable
-  context<void Function()>(b = C());
-}
-
-Future<void> testAwaitExpression() async {
-  Future<C> fc = Future.value(C());
-  context<void Function()>(await fc);
-}
-
-void testBinaryExpression() {
-  D d = D();
-  context<void Function()>(d + d);
-}
-
-void testCascadeExpression() {
-  // Note: we don't apply implicit `.call` tear-offs to the *target* of a
-  // cascade, but we do apply them to the cascade expression as a whole, so
-  // `c..m()` is equivalent to `(c..m()).call`.
-  C c = C();
-  context<void Function()>(c..m());
-}
-
-void testConditionalExpression() {
-  // Note: we know from `implicit_tearoff_exceptions_test.dart` that the two
-  // branches of the conditional expression are *not* subject to implicit
-  // `.call` tearoff, so the `.call` tearoff in this case is applied to the
-  // whole conditional expression.  In other words, `b ? c : c` desugars to
-  // `(b ? c : c).call` rather than `(b ? c.call : c.call)`.
-  C c = C();
-  context<void Function()>(bFalse ? c : c);
-  context<void Function()>(bTrue ? c : c);
-}
-
-void testFunctionExpressionInvocation() {
-  C c = C();
-  context<void Function()>((() => c)());
-}
-
-void testFunctionInvocationLocal() {
-  C localFunction() => C();
-  context<void Function()>(localFunction());
-}
-
-void testFunctionInvocationStatic() {
-  context<void Function()>(D.staticMethod());
-}
-
-void testFunctionInvocationTopLevel() {
-  context<void Function()>(topLevelMethod());
-}
-
-void testIfNullExpression() {
-  C c1 = bTrue ? C() : null;
-  C c2 = C();
-  context<void Function()>(c1 ?? c2);
-  c1 = null;
-  context<void Function()>(c1 ?? c2);
-}
-
-void testIndexExpression() {
-  List<C> l = [C()];
-  context<void Function()>(l[0]);
-}
-
-void testInstanceCreationExpressionExplicit() {
-  context<void Function()>(new C());
-}
-
-void testInstanceCreationExpressionImplicit() {
-  context<void Function()>(C());
-}
-
-void testInstanceGetGeneral() {
-  D Function() dFunction = () => D();
-  context<void Function()>(dFunction().instanceGetter);
-}
-
-void testInstanceGetViaPrefixedIdentifier() {
-  D d = D();
-  context<void Function()>(d.instanceGetter);
-}
-
-void testMethodInvocation() {
-  context<void Function()>(D().instanceMethod());
-}
-
-void testParenthesizedExpression() {
-  C c = C();
-  context<void Function()>((c));
-}
-
-void testUnaryMinusExpression() {
-  D d = D();
-  context<void Function()>(-d);
-}
-
-extension on C {
-  void testThisExpressionExtension() {
-    context<void Function()>(this);
-  }
-}
-
-main() async {
-  testAsExpression();
-  testAssignmentExpression();
-  await testAwaitExpression();
-  testBinaryExpression();
-  testCascadeExpression();
-  testConditionalExpression();
-  testFunctionExpressionInvocation();
-  testFunctionInvocationLocal();
-  testFunctionInvocationStatic();
-  testFunctionInvocationTopLevel();
-  testIfNullExpression();
-  testIndexExpression();
-  testInstanceCreationExpressionExplicit();
-  testInstanceCreationExpressionImplicit();
-  testInstanceGetGeneral();
-  testInstanceGetViaPrefixedIdentifier();
-  testMethodInvocation();
-  testParenthesizedExpression();
-  testUnaryMinusExpression();
-  C().testThisExpression();
-  C().testThisExpressionExtension();
-}
diff --git a/tests/language_2/call/method_as_cast_test.dart b/tests/language_2/call/method_as_cast_test.dart
deleted file mode 100644
index f6e75e4dccd..00000000000
--- a/tests/language_2/call/method_as_cast_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test arithmetic operations.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class B {}
-
-class C {
-  B call(B b) => b;
-}
-
-class D implements Function {
-  B call(B b) => b;
-}
-
-typedef B BToB(B x);
-
-typedef Object NullToObject(Null x);
-
-main() {
-  // The presence of a `.call` method does not cause class `C` to become a
-  // subtype of any function type.
-  C c = new C();
-  Expect.throwsTypeError(() => c as BToB); //# 01: ok
-  Expect.throwsTypeError(() => c as NullToObject); //# 02: ok
-  Expect.throwsTypeError(() => c as Function); //# 03: ok
-
-  // The same goes for class `D`: `implements Function` is ignored in Dart 2.
-  D d = new D();
-  Expect.throwsTypeError(() => d as BToB); //# 04: ok
-  Expect.throwsTypeError(() => d as NullToObject); //# 05: ok
-  Expect.throwsTypeError(() => d as Function); //# 06: ok
-}
diff --git a/tests/language_2/call/method_function_typed_value_test.dart b/tests/language_2/call/method_function_typed_value_test.dart
deleted file mode 100644
index cbc975ea93d..00000000000
--- a/tests/language_2/call/method_function_typed_value_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test arithmetic operations.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-int f(int i) => 2 * i;
-
-typedef int IntToInt(int x);
-
-main() {
-  // It is possible to use `.call` on a function-typed value (even though it is
-  // redundant).  Similarly, it is possible to tear off `.call` on a
-  // function-typed value (but it is a no-op).
-  Expect.equals(f.call(1), 2); //# 01: ok
-  Expect.identical(f.call, f); //# 02: ok
-  IntToInt f2 = f;
-  Expect.equals(f2.call(1), 2); //# 03: ok
-  Expect.identical(f2.call, f); //# 04: ok
-  Function f3 = f;
-  Expect.equals(f3.call(1), 2); //# 05: ok
-  Expect.identical(f3.call, f); //# 06: ok
-  dynamic d = f;
-  Expect.equals(d.call(1), 2); //# 07: ok
-  Expect.identical(d.call, f); //# 08: ok
-}
diff --git a/tests/language_2/call/method_implicit_invoke_instance_test.dart b/tests/language_2/call/method_implicit_invoke_instance_test.dart
deleted file mode 100644
index 975a5bb1fc9..00000000000
--- a/tests/language_2/call/method_implicit_invoke_instance_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test arithmetic operations.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C1 {
-  int call(int i) => 2 * i;
-}
-
-class C2 implements Function {
-  int call(int i) => 2 * i;
-}
-
-class D {
-  C1 c1 = new C1();
-  dynamic d1 = new C1();
-  C2 c2 = new C2();
-  dynamic d2 = new C2();
-
-  void test() {
-    // Implicitly invokes c1.call(1)
-    Expect.equals(c1(1), 2); //# 01: ok
-    // Implicitly invokes d1.call(1)
-    Expect.equals(d1(1), 2); //# 02: ok
-    // Implicitly invokes c2.call(1)
-    Expect.equals(c2(1), 2); //# 03: ok
-    // Implicitly invokes d2.call(1)
-    Expect.equals(d2(1), 2); //# 04: ok
-  }
-}
-
-main() {
-  new D().test();
-  // Implicitly invokes D.c1.call(1)
-  Expect.equals(new D().c1(1), 2); //# 05: ok
-  // Implicitly invokes D.d1.call(1)
-  Expect.equals(new D().d1(1), 2); //# 06: ok
-  // Implicitly invokes D.c2.call(1)
-  Expect.equals(new D().c2(1), 2); //# 07: ok
-  // Implicitly invokes D.d2.call(1)
-  Expect.equals(new D().d2(1), 2); //# 08: ok
-  D d = new D();
-  // Implicitly invokes d.c1.call(1)
-  Expect.equals(d.c1(1), 2); //# 09: ok
-  // Implicitly invokes d.d1.call(1)
-  Expect.equals(d.d1(1), 2); //# 10: ok
-  // Implicitly invokes d.c2.call(1)
-  Expect.equals(d.c2(1), 2); //# 11: ok
-  // Implicitly invokes d.d2.call(1)
-  Expect.equals(d.d2(1), 2); //# 12: ok
-}
diff --git a/tests/language_2/call/method_implicit_invoke_local_runtime_1_test.dart b/tests/language_2/call/method_implicit_invoke_local_runtime_1_test.dart
deleted file mode 100644
index 98709fff98f..00000000000
--- a/tests/language_2/call/method_implicit_invoke_local_runtime_1_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test arithmetic operations.
-
-import "package:expect/expect.dart";
-
-class C1 {
-  int call(int i) => 2 * i;
-}
-
-class C2 implements Function {
-  int call(int i) => 2 * i;
-}
-
-main() {
-  C1 c1 = new C1();
-  // Implicitly invokes c1.call(1)
-  Expect.equals(c1(1), 2);
-  dynamic d1 = c1;
-  // Implicitly invokes d1.call(1)
-
-  C2 c2 = new C2();
-  // Implicitly invokes c2.call(1)
-
-  dynamic d2 = c2;
-  // Implicitly invokes d2.call(1)
-
-  // Cannot invoke with the wrong signature.
-
-
-}
diff --git a/tests/language_2/call/method_implicit_invoke_local_runtime_2_test.dart b/tests/language_2/call/method_implicit_invoke_local_runtime_2_test.dart
deleted file mode 100644
index c52d23adb17..00000000000
--- a/tests/language_2/call/method_implicit_invoke_local_runtime_2_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test arithmetic operations.
-
-import "package:expect/expect.dart";
-
-class C1 {
-  int call(int i) => 2 * i;
-}
-
-class C2 implements Function {
-  int call(int i) => 2 * i;
-}
-
-main() {
-  C1 c1 = new C1();
-  // Implicitly invokes c1.call(1)
-
-  dynamic d1 = c1;
-  // Implicitly invokes d1.call(1)
-  Expect.equals(d1(1), 2);
-  C2 c2 = new C2();
-  // Implicitly invokes c2.call(1)
-
-  dynamic d2 = c2;
-  // Implicitly invokes d2.call(1)
-
-  // Cannot invoke with the wrong signature.
-
-
-}
diff --git a/tests/language_2/call/method_implicit_invoke_local_runtime_3_test.dart b/tests/language_2/call/method_implicit_invoke_local_runtime_3_test.dart
deleted file mode 100644
index 59237f9f267..00000000000
--- a/tests/language_2/call/method_implicit_invoke_local_runtime_3_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test arithmetic operations.
-
-import "package:expect/expect.dart";
-
-class C1 {
-  int call(int i) => 2 * i;
-}
-
-class C2 implements Function {
-  int call(int i) => 2 * i;
-}
-
-main() {
-  C1 c1 = new C1();
-  // Implicitly invokes c1.call(1)
-
-  dynamic d1 = c1;
-  // Implicitly invokes d1.call(1)
-
-  C2 c2 = new C2();
-  // Implicitly invokes c2.call(1)
-  Expect.equals(c2(1), 2);
-  dynamic d2 = c2;
-  // Implicitly invokes d2.call(1)
-
-  // Cannot invoke with the wrong signature.
-
-
-}
diff --git a/tests/language_2/call/method_implicit_invoke_local_runtime_4_test.dart b/tests/language_2/call/method_implicit_invoke_local_runtime_4_test.dart
deleted file mode 100644
index 9132ea9d939..00000000000
--- a/tests/language_2/call/method_implicit_invoke_local_runtime_4_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test arithmetic operations.
-
-import "package:expect/expect.dart";
-
-class C1 {
-  int call(int i) => 2 * i;
-}
-
-class C2 implements Function {
-  int call(int i) => 2 * i;
-}
-
-main() {
-  C1 c1 = new C1();
-  // Implicitly invokes c1.call(1)
-
-  dynamic d1 = c1;
-  // Implicitly invokes d1.call(1)
-
-  C2 c2 = new C2();
-  // Implicitly invokes c2.call(1)
-
-  dynamic d2 = c2;
-  // Implicitly invokes d2.call(1)
-  Expect.equals(d2(1), 2);
-  // Cannot invoke with the wrong signature.
-
-
-}
diff --git a/tests/language_2/call/method_implicit_invoke_local_runtime_test.dart b/tests/language_2/call/method_implicit_invoke_local_runtime_test.dart
deleted file mode 100644
index 24b848c12b6..00000000000
--- a/tests/language_2/call/method_implicit_invoke_local_runtime_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test arithmetic operations.
-
-import "package:expect/expect.dart";
-
-class C1 {
-  int call(int i) => 2 * i;
-}
-
-class C2 implements Function {
-  int call(int i) => 2 * i;
-}
-
-main() {
-  C1 c1 = new C1();
-  // Implicitly invokes c1.call(1)
-
-  dynamic d1 = c1;
-  // Implicitly invokes d1.call(1)
-
-  C2 c2 = new C2();
-  // Implicitly invokes c2.call(1)
-
-  dynamic d2 = c2;
-  // Implicitly invokes d2.call(1)
-
-  // Cannot invoke with the wrong signature.
-
-
-}
diff --git a/tests/language_2/call/method_implicit_invoke_local_test.dart b/tests/language_2/call/method_implicit_invoke_local_test.dart
deleted file mode 100644
index 0f5b5208313..00000000000
--- a/tests/language_2/call/method_implicit_invoke_local_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test arithmetic operations.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C1 {
-  int call(int i) => 2 * i;
-}
-
-class C2 implements Function {
-  int call(int i) => 2 * i;
-}
-
-main() {
-  C1 c1 = new C1();
-  // Implicitly invokes c1.call(1)
-  Expect.equals(c1(1), 2);
-  dynamic d1 = c1;
-  // Implicitly invokes d1.call(1)
-  Expect.equals(d1(1), 2);
-  C2 c2 = new C2();
-  // Implicitly invokes c2.call(1)
-  Expect.equals(c2(1), 2);
-  dynamic d2 = c2;
-  // Implicitly invokes d2.call(1)
-  Expect.equals(d2(1), 2);
-  // Cannot invoke with the wrong signature.
-  c2();
-  // ^
-  // [analyzer] COMPILE_TIME_ERROR.NOT_ENOUGH_POSITIONAL_ARGUMENTS
-  //^^
-  // [cfe] Too few positional arguments: 1 required, 0 given.
-  c2(3, 4);
-  //    ^
-  // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS
-  //^^^^^^
-  // [cfe] Too many positional arguments: 1 allowed, but 2 found.
-}
diff --git a/tests/language_2/call/method_implicit_invoke_static_test.dart b/tests/language_2/call/method_implicit_invoke_static_test.dart
deleted file mode 100644
index f162a0e2238..00000000000
--- a/tests/language_2/call/method_implicit_invoke_static_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test arithmetic operations.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C1 {
-  int call(int i) => 2 * i;
-}
-
-class C2 implements Function {
-  int call(int i) => 2 * i;
-}
-
-class D {
-  static C1 c1 = new C1();
-  static dynamic d1 = new C1();
-  static C2 c2 = new C2();
-  static dynamic d2 = new C2();
-
-  void test1() {
-    // Implicitly invokes c1.call(1)
-    Expect.equals(c1(1), 2); //# 01: ok
-    // Implicitly invokes d1.call(1)
-    Expect.equals(d1(1), 2); //# 02: ok
-    // Implicitly invokes c2.call(1)
-    Expect.equals(c2(1), 2); //# 03: ok
-    // Implicitly invokes d2.call(1)
-    Expect.equals(d2(1), 2); //# 04: ok
-  }
-
-  static void test2() {
-    // Implicitly invokes c1.call(1)
-    Expect.equals(c1(1), 2); //# 05: ok
-    // Implicitly invokes d1.call(1)
-    Expect.equals(d1(1), 2); //# 06: ok
-    // Implicitly invokes c2.call(1)
-    Expect.equals(c2(1), 2); //# 07: ok
-    // Implicitly invokes d2.call(1)
-    Expect.equals(d2(1), 2); //# 08: ok
-  }
-}
-
-main() {
-  new D().test1();
-  D.test2();
-  // Implicitly invokes D.c1.call(1)
-  Expect.equals(D.c1(1), 2); //# 09: ok
-  // Implicitly invokes D.d1.call(1)
-  Expect.equals(D.d1(1), 2); //# 10: ok
-  // Implicitly invokes D.c2.call(1)
-  Expect.equals(D.c2(1), 2); //# 11: ok
-  // Implicitly invokes D.d2.call(1)
-  Expect.equals(D.d2(1), 2); //# 12: ok
-}
diff --git a/tests/language_2/call/method_implicit_invoke_top_level_test.dart b/tests/language_2/call/method_implicit_invoke_top_level_test.dart
deleted file mode 100644
index c9fce668aaa..00000000000
--- a/tests/language_2/call/method_implicit_invoke_top_level_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test arithmetic operations.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C1 {
-  int call(int i) => 2 * i;
-}
-
-class C2 implements Function {
-  int call(int i) => 2 * i;
-}
-
-C1 c1 = new C1();
-dynamic d1 = new C1();
-C2 c2 = new C2();
-dynamic d2 = new C2();
-
-main() {
-  // Implicitly invokes c1.call(1)
-  Expect.equals(c1(1), 2); //# 01: ok
-  // Implicitly invokes d1.call(1)
-  Expect.equals(d1(1), 2); //# 02: ok
-  // Implicitly invokes c2.call(1)
-  Expect.equals(c2(1), 2); //# 03: ok
-  // Implicitly invokes d2.call(1)
-  Expect.equals(d2(1), 2); //# 04: ok
-}
diff --git a/tests/language_2/call/method_implicit_tear_off_assignable_test.dart b/tests/language_2/call/method_implicit_tear_off_assignable_test.dart
deleted file mode 100644
index 75ad6557672..00000000000
--- a/tests/language_2/call/method_implicit_tear_off_assignable_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-abstract class I {
-  void call();
-}
-
-class C implements I {
-  void call([int x]) {}
-}
-
-main() {
-  I i = new C();
-  // The implicit tear-off of i.call should be ok because its type (void
-  // Function()) is a supertype of the expected type, hence it is assignable.
-  void Function([int]) f = i;
-  Expect.equals(f, i.call);
-}
diff --git a/tests/language_2/call/method_implicit_tear_off_nullable_test.dart b/tests/language_2/call/method_implicit_tear_off_nullable_test.dart
deleted file mode 100644
index ab0bd111569..00000000000
--- a/tests/language_2/call/method_implicit_tear_off_nullable_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test arithmetic operations.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class B {}
-
-class C {
-  B call(B b) => b;
-}
-
-typedef B BToB(B x);
-
-C c = null;
-
-void check(BToB f) {
-  Expect.isNull(f);
-}
-
-main() {
-  // The implicit tear-off of `.call` should be tolerant of `null`.
-  check(c); // Equivalent to `check(c?.call);`
-}
diff --git a/tests/language_2/call/method_implicit_tear_off_test.dart b/tests/language_2/call/method_implicit_tear_off_test.dart
deleted file mode 100644
index 218f0bb3c22..00000000000
--- a/tests/language_2/call/method_implicit_tear_off_test.dart
+++ /dev/null
@@ -1,108 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test arithmetic operations.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-
-class B {}
-
-class C {
-  B call(B b) => b;
-}
-
-typedef B BToB(B x);
-
-typedef Object NullToObject(Null x);
-
-C c = new C();
-
-void check1(BToB f) {
-  Expect.isFalse(identical(c, f));
-  Expect.equals(c.call, f);
-  B b = new B();
-  Expect.identical(f(b), b);
-}
-
-void check2(FutureOr<BToB> f) {
-  Expect.isFalse(identical(c, f));
-  Expect.equals(c.call, f);
-  BToB f2 = f;
-  Expect.identical(f, f2);
-  B b = new B();
-  Expect.identical(f2(b), b);
-}
-
-void check3(NullToObject f) {
-  Expect.isFalse(identical(c, f));
-  Expect.equals(c.call, f);
-  Expect.isNull(f(null));
-}
-
-void check4(FutureOr<NullToObject> f) {
-  Expect.isFalse(identical(c, f));
-  Expect.equals(c.call, f);
-  NullToObject f2 = f;
-  Expect.identical(f, f2);
-  Expect.isNull(f2(null));
-}
-
-void check5(Function f) {
-  Expect.isFalse(identical(c, f));
-  Expect.equals(c.call, f);
-  B b = new B();
-  Expect.identical(f(b), b);
-}
-
-void check6(FutureOr<Function> f) {
-  Expect.isFalse(identical(c, f));
-  Expect.equals(c.call, f);
-  Function f2 = f;
-  Expect.identical(f, f2);
-  B b = new B();
-  Expect.identical(f2(b), b);
-}
-
-void check7(C x) {
-  Expect.identical(c, x);
-}
-
-void check8(FutureOr<C> x) {
-  Expect.identical(c, x);
-}
-
-void check9(Object o) {
-  Expect.identical(c, o);
-}
-
-void check10(FutureOr<Object> o) {
-  Expect.identical(c, o);
-}
-
-void check11(dynamic d) {
-  Expect.identical(c, d);
-}
-
-void check12(FutureOr<dynamic> d) {
-  Expect.identical(c, d);
-}
-
-main() {
-  // Implicitly tears off c.call
-  check1(c); //# 01: ok
-  check2(c); //# 02: ok
-  check3(c); //# 03: ok
-  check4(c); //# 04: ok
-  check5(c); //# 05: ok
-  check6(c); //# 06: ok
-  // Does not tear off c.call
-  check7(c); //# 07: ok
-  check8(c); //# 08: ok
-  check9(c); //# 09: ok
-  check10(c); //# 10: ok
-  check11(c); //# 11: ok
-  check12(c); //# 12: ok
-}
diff --git a/tests/language_2/call/method_is_check_test.dart b/tests/language_2/call/method_is_check_test.dart
deleted file mode 100644
index aed411c42f2..00000000000
--- a/tests/language_2/call/method_is_check_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test arithmetic operations.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class B {}
-
-class C {
-  B call(B b) => b;
-}
-
-class D implements Function {
-  B call(B b) => b;
-}
-
-typedef B BToB(B x);
-
-typedef Object NullToObject(Null x);
-
-main() {
-  // The presence of a `.call` method does not cause class `C` to become a
-  // subtype of any function type.
-  C c = new C();
-  Expect.isFalse(c is BToB); //# 01: ok
-  Expect.isFalse(c is NullToObject); //# 02: ok
-  Expect.isFalse(c is Function); //# 03: ok
-
-  // The same goes for class `D`: `implements Function` is ignored in Dart 2.
-  D d = new D();
-  Expect.isFalse(d is BToB); //# 04: ok
-  Expect.isFalse(d is NullToObject); //# 05: ok
-  Expect.isFalse(d is Function); //# 06: ok
-}
diff --git a/tests/language_2/call/method_must_not_be_field_test.dart b/tests/language_2/call/method_must_not_be_field_test.dart
deleted file mode 100644
index 6d178cb9cb3..00000000000
--- a/tests/language_2/call/method_must_not_be_field_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test arithmetic operations.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C {
-  void Function() call = () {};
-}
-
-main() {
-  C c = new C();
-  dynamic d = c;
-
-  // The presence of a field named `call` does not permit the class `C` to be
-  // implicitly called.
-  c(); //# 01: compile-time error
-  // Nor does it permit an implicit tear-off of `call`.
-  void Function() f = c; //# 02: compile-time error
-  // Nor does it permit a dynamic invocation of `call`.
-  Expect.throws(() => d()); //# 03: ok
-
-  // However, all these things are possible if `call` is mentioned explicitly.
-  c.call(); //# 04: ok
-  void Function() f = c.call; //# 05: ok
-  d.call(); //# 06: ok
-  (d.call)(); //# 07: ok
-}
diff --git a/tests/language_2/call/method_must_not_be_getter_test.dart b/tests/language_2/call/method_must_not_be_getter_test.dart
deleted file mode 100644
index f5bd0eb37de..00000000000
--- a/tests/language_2/call/method_must_not_be_getter_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test arithmetic operations.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C {
-  void Function() get call => () {};
-}
-
-class D {
-  get call => this;
-}
-
-// Recurs outside the try-block to avoid disabling inlining.
-callD() {
-  dynamic d = new D();
-  d();
-}
-
-main() {
-  C c = new C();
-  dynamic d = c;
-
-  // The presence of a getter named `call` does not permit the class `C` to be
-  // implicitly called.
-  c(); //# 01: compile-time error
-  // Nor does it permit an implicit tear-off of `call`.
-  void Function() f = c; //# 02: compile-time error
-  // Nor does it permit a dynamic invocation of `call`.
-  Expect.throws(() => d()); //# 03: ok
-  // Same as previous line, but with a getter that can stack overflow if
-  // incorrect behavior is present. Merged from issue21159_test.
-  Expect.throwsNoSuchMethodError(() => callD()); //# 03: ok
-
-  // However, all these things are possible if `call` is mentioned explicitly.
-  c.call(); //# 04: ok
-  void Function() f = c.call; //# 05: ok
-  d.call(); //# 06: ok
-}
diff --git a/tests/language_2/call/method_override_runtime_test.dart b/tests/language_2/call/method_override_runtime_test.dart
deleted file mode 100644
index fc6b765417e..00000000000
--- a/tests/language_2/call/method_override_runtime_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test arithmetic operations.
-
-class B {}
-
-class C {
-  B call(B b) => b;
-}
-
-typedef B BToB(B x);
-
-class D {
-  BToB f() => null;
-  void g(C x) {}
-}
-
-class E extends D {
-  // This override is illegal because C is not a subtype of BToB.
-
-
-  // This override is illegal because BToB is not a supertype of C.
-
-}
-
-main() {
-  new E();
-}
diff --git a/tests/language_2/call/method_override_test.dart b/tests/language_2/call/method_override_test.dart
deleted file mode 100644
index f7b8c549403..00000000000
--- a/tests/language_2/call/method_override_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test arithmetic operations.
-
-// @dart = 2.9
-
-class B {}
-
-class C {
-  B call(B b) => b;
-}
-
-typedef B BToB(B x);
-
-class D {
-  BToB f() => null;
-  void g(C x) {}
-}
-
-class E extends D {
-  // This override is illegal because C is not a subtype of BToB.
-  C f() => null;
-  //^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-  // [cfe] The return type of the method 'E.f' is 'C', which does not match the return type, 'B Function(B)', of the overridden method, 'D.f'.
-
-  // This override is illegal because BToB is not a supertype of C.
-  void g(BToB x) {}
-  //   ^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-  //          ^
-  // [cfe] The parameter 'x' of the method 'E.g' has type 'B Function(B)', which does not match the corresponding type, 'C', in the overridden method, 'D.g'.
-}
-
-main() {
-  new E();
-}
diff --git a/tests/language_2/call/non_method_field_runtime_test.dart b/tests/language_2/call/non_method_field_runtime_test.dart
deleted file mode 100644
index ff4606948f7..00000000000
--- a/tests/language_2/call/non_method_field_runtime_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Tests calling an object's field which is not a method.
-
-class Fisk {
-  int i;
-}
-
-class Hest extends Fisk {}
-
-main() {
-  Fisk x1 = new Fisk();
-
-
-  Hest x2 = new Hest();
-
-}
diff --git a/tests/language_2/call/non_method_field_test.dart b/tests/language_2/call/non_method_field_test.dart
deleted file mode 100644
index 3e129c001e1..00000000000
--- a/tests/language_2/call/non_method_field_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests calling an object's field which is not a method.
-
-class Fisk {
-  int i;
-}
-
-class Hest extends Fisk {}
-
-main() {
-  Fisk x1 = new Fisk();
-  x1.i();
-//^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVOCATION_OF_NON_FUNCTION_EXPRESSION
-//    ^
-// [cfe] 'i' isn't a function or method and can't be invoked.
-
-  Hest x2 = new Hest();
-  x2.i();
-//^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVOCATION_OF_NON_FUNCTION_EXPRESSION
-//    ^
-// [cfe] 'i' isn't a function or method and can't be invoked.
-}
diff --git a/tests/language_2/call/nonexistent_constructor_runtime_test.dart b/tests/language_2/call/nonexistent_constructor_runtime_test.dart
deleted file mode 100644
index aaea0026ac9..00000000000
--- a/tests/language_2/call/nonexistent_constructor_runtime_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-// When attempting to call a nonexistent constructor, check that a
-// compile error is reported.
-
-foo() {
-  throw 'hest';
-}
-
-class A {
-  A.foo(var x) {}
-}
-
-main() {
-  new A.foo(42);
-
-
-}
diff --git a/tests/language_2/call/nonexistent_constructor_test.dart b/tests/language_2/call/nonexistent_constructor_test.dart
deleted file mode 100644
index 906b57dc73e..00000000000
--- a/tests/language_2/call/nonexistent_constructor_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// When attempting to call a nonexistent constructor, check that a
-// compile error is reported.
-
-foo() {
-  throw 'hest';
-}
-
-class A {
-  A.foo(var x) {}
-}
-
-main() {
-  new A.foo(42);
-  new A.bar(foo());
-  //    ^^^
-  // [analyzer] COMPILE_TIME_ERROR.NEW_WITH_UNDEFINED_CONSTRUCTOR
-  // [cfe] Couldn't find constructor 'A.bar'.
-  new A();
-  //  ^
-  // [analyzer] COMPILE_TIME_ERROR.NEW_WITH_UNDEFINED_CONSTRUCTOR_DEFAULT
-  // [cfe] Couldn't find constructor 'A'.
-}
diff --git a/tests/language_2/call/nonexistent_static_test.dart b/tests/language_2/call/nonexistent_static_test.dart
deleted file mode 100644
index 170d3e6e799..00000000000
--- a/tests/language_2/call/nonexistent_static_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// When attempting to call a nonexistent static method, getter or setter, check
-// that a compile error is reported.
-
-class C {}
-
-class D {
-  get hest => 1; //# 04: continued
-  set hest(val) {} //# 05: continued
-}
-
-get fisk => 2; //# 09: continued
-set fisk(val) {} //# 10: continued
-
-main() {
-  C.hest = 1; //# 01: compile-time error
-  C.hest; //# 02: compile-time error
-  C.hest(); //# 03: compile-time error
-
-  D.hest = 1; //# 04: compile-time error
-  D.hest; //# 05: compile-time error
-  fisk = 1; //# 06: compile-time error
-  fisk; //# 07: compile-time error
-  fisk(); //# 08: compile-time error
-  fisk = 1; //# 09: compile-time error
-  fisk; //# 10: compile-time error
-}
diff --git a/tests/language_2/call/object_has_no_call_method_test.dart b/tests/language_2/call/object_has_no_call_method_test.dart
deleted file mode 100644
index 40057b93229..00000000000
--- a/tests/language_2/call/object_has_no_call_method_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-void test(dynamic d, Object o, Function f) {
-  d();
-  o();
-//^
-// [analyzer] COMPILE_TIME_ERROR.INVOCATION_OF_NON_FUNCTION_EXPRESSION
-// ^
-// [cfe] The method 'call' isn't defined for the class 'Object'.
-  f();
-  d.call;
-  o.call;
-  //^^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'call' isn't defined for the class 'Object'.
-  f.call;
-  d.call();
-  o.call();
-  //^^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_METHOD
-  // [cfe] The method 'call' isn't defined for the class 'Object'.
-  f.call();
-}
-
-main() {}
diff --git a/tests/language_2/call/object_has_no_call_runtime_1_test.dart b/tests/language_2/call/object_has_no_call_runtime_1_test.dart
deleted file mode 100644
index e80d86b358b..00000000000
--- a/tests/language_2/call/object_has_no_call_runtime_1_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-void test(dynamic d, Object o, Function f) {
-  d();
-
-
-
-
-
-
-
-
-}
-
-main() {}
diff --git a/tests/language_2/call/object_has_no_call_runtime_2_test.dart b/tests/language_2/call/object_has_no_call_runtime_2_test.dart
deleted file mode 100644
index 29248019758..00000000000
--- a/tests/language_2/call/object_has_no_call_runtime_2_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-void test(dynamic d, Object o, Function f) {
-
-
-  f();
-
-
-
-
-
-
-}
-
-main() {}
diff --git a/tests/language_2/call/object_has_no_call_runtime_3_test.dart b/tests/language_2/call/object_has_no_call_runtime_3_test.dart
deleted file mode 100644
index 9056e42fcad..00000000000
--- a/tests/language_2/call/object_has_no_call_runtime_3_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-void test(dynamic d, Object o, Function f) {
-
-
-
-  d.call;
-
-
-
-
-
-}
-
-main() {}
diff --git a/tests/language_2/call/object_has_no_call_runtime_4_test.dart b/tests/language_2/call/object_has_no_call_runtime_4_test.dart
deleted file mode 100644
index c04fe5b60bd..00000000000
--- a/tests/language_2/call/object_has_no_call_runtime_4_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-void test(dynamic d, Object o, Function f) {
-
-
-
-
-
-  f.call;
-
-
-
-}
-
-main() {}
diff --git a/tests/language_2/call/object_has_no_call_runtime_5_test.dart b/tests/language_2/call/object_has_no_call_runtime_5_test.dart
deleted file mode 100644
index 961b4db36d1..00000000000
--- a/tests/language_2/call/object_has_no_call_runtime_5_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-void test(dynamic d, Object o, Function f) {
-
-
-
-
-
-
-  d.call();
-
-
-}
-
-main() {}
diff --git a/tests/language_2/call/object_has_no_call_runtime_6_test.dart b/tests/language_2/call/object_has_no_call_runtime_6_test.dart
deleted file mode 100644
index 5642d64d291..00000000000
--- a/tests/language_2/call/object_has_no_call_runtime_6_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-void test(dynamic d, Object o, Function f) {
-
-
-
-
-
-
-
-
-  f.call();
-}
-
-main() {}
diff --git a/tests/language_2/call/object_has_no_call_runtime_test.dart b/tests/language_2/call/object_has_no_call_runtime_test.dart
deleted file mode 100644
index 8ebd5dcd1dd..00000000000
--- a/tests/language_2/call/object_has_no_call_runtime_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-void test(dynamic d, Object o, Function f) {
-
-
-
-
-
-
-
-
-
-}
-
-main() {}
diff --git a/tests/language_2/call/operator_test.dart b/tests/language_2/call/operator_test.dart
deleted file mode 100644
index 18ccb3bd525..00000000000
--- a/tests/language_2/call/operator_test.dart
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// simple test with no types in signature
-class A1 {
-  call() => 42;
-}
-
-// same test, include return type
-class A2 {
-  int call() => 35;
-}
-
-class B {
-  call() => 28;
-}
-
-// A call() operator can have any arity
-class C {
-  call(arg) => 7 * arg;
-}
-
-// Test named arguments
-class D {
-  call([arg = 6]) => 7 * arg;
-}
-
-// Non-trivial method body combination of positional and named.
-class E {
-  String call(String str, {int count: 1}) {
-    StringBuffer buffer = new StringBuffer();
-    for (var i = 0; i < count; i++) {
-      buffer.write(str);
-      if (i < count - 1) {
-        buffer.write(":");
-      }
-    }
-    return buffer.toString();
-  }
-}
-
-main() {
-  var a1 = new A1();
-  Expect.equals(42, a1());
-  Expect.equals(42, a1.call());
-
-  var a2 = new A2();
-  Expect.equals(35, a2());
-  Expect.equals(35, a2.call());
-
-  var b = new B();
-  Expect.equals(28, b());
-  Expect.equals(28, b.call());
-
-  var c = new C();
-  Expect.equals(42, c(6));
-  Expect.equals(42, c.call(6));
-
-  var d = new D();
-  Expect.equals(42, d());
-  Expect.equals(7, d(1));
-  Expect.equals(14, d(2));
-  Expect.equals(42, d.call());
-  Expect.equals(7, d.call(1));
-  Expect.equals(14, d.call(2));
-
-  var e = new E();
-  Expect.equals("foo", e("foo"));
-  Expect.equals("foo:foo", e("foo", count: 2));
-  Expect.equals("foo:foo:foo", e("foo", count: 3));
-  Expect.equals("foo", e.call("foo"));
-  Expect.equals("foo:foo", e.call("foo", count: 2));
-  Expect.equals("foo:foo:foo", e.call("foo", count: 3));
-
-  Expect.isFalse(a1 is Function); //# 01: ok
-  Expect.isFalse(e is Function); //# 02: ok
-}
diff --git a/tests/language_2/call/property_test.dart b/tests/language_2/call/property_test.dart
deleted file mode 100644
index 5f6ddbe7727..00000000000
--- a/tests/language_2/call/property_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that a class with a [call] property does not implement [Function] or
-// a typedef of function type.
-
-import 'package:expect/expect.dart';
-
-class Call {
-  int get call => 0;
-}
-
-typedef void F();
-
-main() {
-  Expect.isFalse(new Call() is Function);
-  Expect.isFalse(new Call() is F);
-}
diff --git a/tests/language_2/call/through_getter_runtime_test.dart b/tests/language_2/call/through_getter_runtime_test.dart
deleted file mode 100644
index 1faba5dfc3b..00000000000
--- a/tests/language_2/call/through_getter_runtime_test.dart
+++ /dev/null
@@ -1,181 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-// Tests that we can call functions through getters.
-
-const TOP_LEVEL_CONST = 1;
-const TOP_LEVEL_CONST_REF = TOP_LEVEL_CONST;
-const TOP_LEVEL_NULL = null;
-
-var topLevel;
-
-class CallThroughGetterTest {
-  static void testMain() {
-    testTopLevel();
-    testField();
-    testGetter();
-    testMethod();
-    testEvaluationOrder();
-  }
-
-  static void testTopLevel() {
-    topLevel = () {
-      return 2;
-    };
-    Expect.equals(1, TOP_LEVEL_CONST);
-    Expect.equals(1, TOP_LEVEL_CONST_REF);
-    Expect.equals(2, topLevel());
-
-
-
-  }
-
-  static void testField() {
-    A a = new A();
-    a.field = () => 42;
-    Expect.equals(42, a.field());
-    Expect.equals(42, (a.field)());
-
-    a.field = () => 87;
-    Expect.equals(87, a.field());
-    Expect.equals(87, (a.field)());
-
-    a.field = 99;
-    Expect.throwsNoSuchMethodError(() => a.field());
-    Expect.throwsNoSuchMethodError(() => (a.field)());
-  }
-
-  static void testGetter() {
-    A a = new A();
-    a.field = () => 42;
-    Expect.equals(42, a.getter());
-    Expect.equals(42, (a.getter)());
-
-    a.field = () => 87;
-    Expect.equals(87, a.getter());
-    Expect.equals(87, (a.getter)());
-
-    a.field = 99;
-    Expect.throwsNoSuchMethodError(() => a.getter());
-    Expect.throwsNoSuchMethodError(() => (a.getter)());
-  }
-
-  static void testMethod() {
-    A a = new A();
-    a.field = () => 42;
-    Expect.equals(true, a.method() is Function);
-    Expect.equals(42, a.method()());
-
-    a.field = () => 87;
-    Expect.equals(true, a.method() is Function);
-    Expect.equals(87, a.method()());
-
-    a.field = null;
-    Expect.equals(null, a.method());
-  }
-
-  static void testEvaluationOrder() {
-    B b = new B();
-    Expect.equals("gf", b.g0());
-    b = new B();
-    Expect.equals("gf", (b.g0)());
-
-    b = new B();
-    Expect.equals("xgf", b.g1(b.x));
-    b = new B();
-    Expect.equals("gxf", (b.g1)(b.x));
-
-    b = new B();
-    Expect.equals("xygf", b.g2(b.x, b.y));
-    b = new B();
-    Expect.equals("gxyf", (b.g2)(b.x, b.y));
-
-    b = new B();
-    Expect.equals("xyzgf", b.g3(b.x, b.y, b.z));
-    b = new B();
-    Expect.equals("gxyzf", (b.g3)(b.x, b.y, b.z));
-
-    b = new B();
-    Expect.equals("yzxgf", b.g3(b.y, b.z, b.x));
-    b = new B();
-    Expect.equals("gyzxf", (b.g3)(b.y, b.z, b.x));
-  }
-}
-
-class A {
-  A() {}
-  var field;
-  get getter {
-    return field;
-  }
-
-  method() {
-    return field;
-  }
-}
-
-class B {
-  B() : _order = new StringBuffer("") {}
-
-  get g0 {
-    _mark('g');
-    return () {
-      return _mark('f');
-    };
-  }
-
-  get g1 {
-    _mark('g');
-    return (x) {
-      return _mark('f');
-    };
-  }
-
-  get g2 {
-    _mark('g');
-    return (x, y) {
-      return _mark('f');
-    };
-  }
-
-  get g3 {
-    _mark('g');
-    return (x, y, z) {
-      return _mark('f');
-    };
-  }
-
-  get x {
-    _mark('x');
-    return 0;
-  }
-
-  get y {
-    _mark('y');
-    return 1;
-  }
-
-  get z {
-    _mark('z');
-    return 2;
-  }
-
-  _mark(m) {
-    _order.write(m);
-    return _order.toString();
-  }
-
-  StringBuffer _order;
-}
-
-main() {
-  CallThroughGetterTest.testMain();
-}
diff --git a/tests/language_2/call/through_getter_test.dart b/tests/language_2/call/through_getter_test.dart
deleted file mode 100644
index 7a13b34fa7e..00000000000
--- a/tests/language_2/call/through_getter_test.dart
+++ /dev/null
@@ -1,186 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Tests that we can call functions through getters.
-
-const TOP_LEVEL_CONST = 1;
-const TOP_LEVEL_CONST_REF = TOP_LEVEL_CONST;
-const TOP_LEVEL_NULL = null;
-
-var topLevel;
-
-class CallThroughGetterTest {
-  static void testMain() {
-    testTopLevel();
-    testField();
-    testGetter();
-    testMethod();
-    testEvaluationOrder();
-  }
-
-  static void testTopLevel() {
-    topLevel = () {
-      return 2;
-    };
-    Expect.equals(1, TOP_LEVEL_CONST);
-    Expect.equals(1, TOP_LEVEL_CONST_REF);
-    Expect.equals(2, topLevel());
-
-    TOP_LEVEL_CONST();
-//  ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVOCATION_OF_NON_FUNCTION_EXPRESSION
-//                 ^
-// [cfe] The method 'call' isn't defined for the class 'int'.
-    (TOP_LEVEL_CONST)();
-//  ^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVOCATION_OF_NON_FUNCTION_EXPRESSION
-//                   ^
-// [cfe] The method 'call' isn't defined for the class 'int'.
-  }
-
-  static void testField() {
-    A a = new A();
-    a.field = () => 42;
-    Expect.equals(42, a.field());
-    Expect.equals(42, (a.field)());
-
-    a.field = () => 87;
-    Expect.equals(87, a.field());
-    Expect.equals(87, (a.field)());
-
-    a.field = 99;
-    Expect.throwsNoSuchMethodError(() => a.field());
-    Expect.throwsNoSuchMethodError(() => (a.field)());
-  }
-
-  static void testGetter() {
-    A a = new A();
-    a.field = () => 42;
-    Expect.equals(42, a.getter());
-    Expect.equals(42, (a.getter)());
-
-    a.field = () => 87;
-    Expect.equals(87, a.getter());
-    Expect.equals(87, (a.getter)());
-
-    a.field = 99;
-    Expect.throwsNoSuchMethodError(() => a.getter());
-    Expect.throwsNoSuchMethodError(() => (a.getter)());
-  }
-
-  static void testMethod() {
-    A a = new A();
-    a.field = () => 42;
-    Expect.equals(true, a.method() is Function);
-    Expect.equals(42, a.method()());
-
-    a.field = () => 87;
-    Expect.equals(true, a.method() is Function);
-    Expect.equals(87, a.method()());
-
-    a.field = null;
-    Expect.equals(null, a.method());
-  }
-
-  static void testEvaluationOrder() {
-    B b = new B();
-    Expect.equals("gf", b.g0());
-    b = new B();
-    Expect.equals("gf", (b.g0)());
-
-    b = new B();
-    Expect.equals("xgf", b.g1(b.x));
-    b = new B();
-    Expect.equals("gxf", (b.g1)(b.x));
-
-    b = new B();
-    Expect.equals("xygf", b.g2(b.x, b.y));
-    b = new B();
-    Expect.equals("gxyf", (b.g2)(b.x, b.y));
-
-    b = new B();
-    Expect.equals("xyzgf", b.g3(b.x, b.y, b.z));
-    b = new B();
-    Expect.equals("gxyzf", (b.g3)(b.x, b.y, b.z));
-
-    b = new B();
-    Expect.equals("yzxgf", b.g3(b.y, b.z, b.x));
-    b = new B();
-    Expect.equals("gyzxf", (b.g3)(b.y, b.z, b.x));
-  }
-}
-
-class A {
-  A() {}
-  var field;
-  get getter {
-    return field;
-  }
-
-  method() {
-    return field;
-  }
-}
-
-class B {
-  B() : _order = new StringBuffer("") {}
-
-  get g0 {
-    _mark('g');
-    return () {
-      return _mark('f');
-    };
-  }
-
-  get g1 {
-    _mark('g');
-    return (x) {
-      return _mark('f');
-    };
-  }
-
-  get g2 {
-    _mark('g');
-    return (x, y) {
-      return _mark('f');
-    };
-  }
-
-  get g3 {
-    _mark('g');
-    return (x, y, z) {
-      return _mark('f');
-    };
-  }
-
-  get x {
-    _mark('x');
-    return 0;
-  }
-
-  get y {
-    _mark('y');
-    return 1;
-  }
-
-  get z {
-    _mark('z');
-    return 2;
-  }
-
-  _mark(m) {
-    _order.write(m);
-    return _order.toString();
-  }
-
-  StringBuffer _order;
-}
-
-main() {
-  CallThroughGetterTest.testMain();
-}
diff --git a/tests/language_2/call/through_null_getter_test.dart b/tests/language_2/call/through_null_getter_test.dart
deleted file mode 100644
index 82d0a1adbba..00000000000
--- a/tests/language_2/call/through_null_getter_test.dart
+++ /dev/null
@@ -1,69 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Tests that we can call functions through getters which return null.
-
-const dynamic TOP_LEVEL_NULL = null;
-
-var topLevel;
-
-class CallThroughNullGetterTest {
-  static void testMain() {
-    testTopLevel();
-    testField();
-    testGetter();
-    testMethod();
-  }
-
-  static void testTopLevel() {
-    topLevel = null;
-    Expect.throwsNoSuchMethodError(() => topLevel());
-    Expect.throwsNoSuchMethodError(() => (topLevel)());
-    Expect.throwsNoSuchMethodError(() => TOP_LEVEL_NULL());
-    Expect.throwsNoSuchMethodError(() => (TOP_LEVEL_NULL)());
-  }
-
-  static void testField() {
-    A a = new A();
-
-    a.field = null;
-    Expect.throwsNoSuchMethodError(() => a.field());
-    Expect.throwsNoSuchMethodError(() => (a.field)());
-  }
-
-  static void testGetter() {
-    A a = new A();
-
-    a.field = null;
-    Expect.throwsNoSuchMethodError(() => a.getter());
-    Expect.throwsNoSuchMethodError(() => (a.getter)());
-  }
-
-  static void testMethod() {
-    A a = new A();
-
-    a.field = null;
-    Expect.throwsNoSuchMethodError(() => a.method()());
-  }
-}
-
-class A {
-  A() {}
-  var field;
-  get getter {
-    return field;
-  }
-
-  method() {
-    return field;
-  }
-}
-
-main() {
-  CallThroughNullGetterTest.testMain();
-}
diff --git a/tests/language_2/call/type_literal_test.dart b/tests/language_2/call/type_literal_test.dart
deleted file mode 100644
index f4a125cc6e1..00000000000
--- a/tests/language_2/call/type_literal_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class C {
-  void a() {}
-}
-
-void main() {
-  C().a();
-}
diff --git a/tests/language_2/call/with_no_such_method_test.dart b/tests/language_2/call/with_no_such_method_test.dart
deleted file mode 100644
index 3b6413de271..00000000000
--- a/tests/language_2/call/with_no_such_method_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class F {
-  final int value;
-  F(this.value);
-  call() => value;
-  noSuchMethod(Invocation i) {
-    if (i.memberName == #call && i.isMethod) {
-      return i.positionalArguments[0];
-    }
-    return super.noSuchMethod(i);
-  }
-}
-
-main() {
-  F f = new F(42);
-  // Tears off f.call, fails with nSM (wrong number of arguments).
-  Expect.throwsNoSuchMethodError(() => Function.apply(f, ['a', 'b', 'c', 'd']));
-
-  dynamic d = f;
-  var result = d('a', 'b', 'c', 'd'); // calls F.noSuchMethod
-  Expect.equals('a', result);
-
-  // Tears off f.call, call succeeds
-  Expect.equals(42, Function.apply(f, []));
-}
diff --git a/tests/language_2/canonicalize/const2_test.dart b/tests/language_2/canonicalize/const2_test.dart
deleted file mode 100644
index 4cc7f6ee250..00000000000
--- a/tests/language_2/canonicalize/const2_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Check that compile-time constants are correctly canonicalized.
-
-main() {
-  Expect.isFalse(identical(const <num>[1, 2], const <num>[1.0, 2.0]));
-}
diff --git a/tests/language_2/canonicalize/const3_test.dart b/tests/language_2/canonicalize/const3_test.dart
deleted file mode 100644
index 453a75f5796..00000000000
--- a/tests/language_2/canonicalize/const3_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Check proper canonicalization (fields must be canonicalized as well).
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.isFalse(identical(new Duration(days: 1), new Duration(days: 1)));
-  Expect.isTrue(identical(const Duration(days: 2), const Duration(days: 2)));
-  Expect.isTrue(identical(const B(3.0), const B(3.0)));
-  Expect.isTrue(identical(const F(main), const F(main)));
-}
-
-class A {
-  final a;
-  const A(v) : a = v + 3.4;
-}
-
-class B extends A {
-  final b;
-  const B(v)
-      : b = v + 1.0,
-        super(v);
-}
-
-class F {
-  final f;
-  const F(v) : f = v;
-}
diff --git a/tests/language_2/canonicalize/const_test.dart b/tests/language_2/canonicalize/const_test.dart
deleted file mode 100644
index 50f0d344349..00000000000
--- a/tests/language_2/canonicalize/const_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check that initializers of static const fields are compile time constants.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class CanonicalConstTest {
-  static const A = const C1();
-  static const B = const C2();
-
-  static testMain() {
-    Expect.identical(null, null);
-    Expect.isFalse(identical(null, 0));
-    Expect.identical(1, 1);
-    Expect.isFalse(identical(1, 2));
-    Expect.identical(true, true);
-    Expect.identical("so", "so");
-    Expect.identical(const Object(), const Object());
-    Expect.isFalse(identical(const Object(), const C1()));
-    Expect.identical(const C1(), const C1());
-    Expect.identical(A, const C1());
-    Expect.isFalse(identical(const C1(), const C2()));
-    Expect.identical(B, const C2());
-    Expect.isFalse(identical(const [2, 1], const [1, 2]));
-    Expect.identical(const <int>[1, 2], const <int>[1, 2]);
-    Expect.identical(const <Object>[1, 2], const <Object>[1, 2]);
-    Expect.isFalse(identical(const <int>[1, 2], const <double>[1.0, 2.0]));
-    Expect.identical(const {"a": 1, "b": 2}, const {"a": 1, "b": 2});
-    Expect.isFalse(identical(const {"a": 1, "b": 2}, const {"a": 2, "b": 2}));
-  }
-}
-
-class C1 {
-  const C1();
-}
-
-class C2 extends C1 {
-  const C2() : super();
-}
-
-main() {
-  CanonicalConstTest.testMain();
-}
diff --git a/tests/language_2/canonicalize/hashing_memoize_array_test.dart b/tests/language_2/canonicalize/hashing_memoize_array_test.dart
deleted file mode 100644
index dde26b25b37..00000000000
--- a/tests/language_2/canonicalize/hashing_memoize_array_test.dart
+++ /dev/null
@@ -1,220 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// If canonicalization uses deep structural hashing without memoizing, this
-// will exhibit superlinear time.
-
-const list1_0 = <Object>[null, null];
-const list1_1 = <Object>[list1_0, list1_0];
-const list1_2 = <Object>[list1_1, list1_1];
-const list1_3 = <Object>[list1_2, list1_2];
-const list1_4 = <Object>[list1_3, list1_3];
-const list1_5 = <Object>[list1_4, list1_4];
-const list1_6 = <Object>[list1_5, list1_5];
-const list1_7 = <Object>[list1_6, list1_6];
-const list1_8 = <Object>[list1_7, list1_7];
-const list1_9 = <Object>[list1_8, list1_8];
-const list1_10 = <Object>[list1_9, list1_9];
-const list1_11 = <Object>[list1_10, list1_10];
-const list1_12 = <Object>[list1_11, list1_11];
-const list1_13 = <Object>[list1_12, list1_12];
-const list1_14 = <Object>[list1_13, list1_13];
-const list1_15 = <Object>[list1_14, list1_14];
-const list1_16 = <Object>[list1_15, list1_15];
-const list1_17 = <Object>[list1_16, list1_16];
-const list1_18 = <Object>[list1_17, list1_17];
-const list1_19 = <Object>[list1_18, list1_18];
-const list1_20 = <Object>[list1_19, list1_19];
-const list1_21 = <Object>[list1_20, list1_20];
-const list1_22 = <Object>[list1_21, list1_21];
-const list1_23 = <Object>[list1_22, list1_22];
-const list1_24 = <Object>[list1_23, list1_23];
-const list1_25 = <Object>[list1_24, list1_24];
-const list1_26 = <Object>[list1_25, list1_25];
-const list1_27 = <Object>[list1_26, list1_26];
-const list1_28 = <Object>[list1_27, list1_27];
-const list1_29 = <Object>[list1_28, list1_28];
-const list1_30 = <Object>[list1_29, list1_29];
-const list1_31 = <Object>[list1_30, list1_30];
-const list1_32 = <Object>[list1_31, list1_31];
-const list1_33 = <Object>[list1_32, list1_32];
-const list1_34 = <Object>[list1_33, list1_33];
-const list1_35 = <Object>[list1_34, list1_34];
-const list1_36 = <Object>[list1_35, list1_35];
-const list1_37 = <Object>[list1_36, list1_36];
-const list1_38 = <Object>[list1_37, list1_37];
-const list1_39 = <Object>[list1_38, list1_38];
-const list1_40 = <Object>[list1_39, list1_39];
-const list1_41 = <Object>[list1_40, list1_40];
-const list1_42 = <Object>[list1_41, list1_41];
-const list1_43 = <Object>[list1_42, list1_42];
-const list1_44 = <Object>[list1_43, list1_43];
-const list1_45 = <Object>[list1_44, list1_44];
-const list1_46 = <Object>[list1_45, list1_45];
-const list1_47 = <Object>[list1_46, list1_46];
-const list1_48 = <Object>[list1_47, list1_47];
-const list1_49 = <Object>[list1_48, list1_48];
-const list1_50 = <Object>[list1_49, list1_49];
-const list1_51 = <Object>[list1_50, list1_50];
-const list1_52 = <Object>[list1_51, list1_51];
-const list1_53 = <Object>[list1_52, list1_52];
-const list1_54 = <Object>[list1_53, list1_53];
-const list1_55 = <Object>[list1_54, list1_54];
-const list1_56 = <Object>[list1_55, list1_55];
-const list1_57 = <Object>[list1_56, list1_56];
-const list1_58 = <Object>[list1_57, list1_57];
-const list1_59 = <Object>[list1_58, list1_58];
-const list1_60 = <Object>[list1_59, list1_59];
-const list1_61 = <Object>[list1_60, list1_60];
-const list1_62 = <Object>[list1_61, list1_61];
-const list1_63 = <Object>[list1_62, list1_62];
-const list1_64 = <Object>[list1_63, list1_63];
-const list1_65 = <Object>[list1_64, list1_64];
-const list1_66 = <Object>[list1_65, list1_65];
-const list1_67 = <Object>[list1_66, list1_66];
-const list1_68 = <Object>[list1_67, list1_67];
-const list1_69 = <Object>[list1_68, list1_68];
-const list1_70 = <Object>[list1_69, list1_69];
-const list1_71 = <Object>[list1_70, list1_70];
-const list1_72 = <Object>[list1_71, list1_71];
-const list1_73 = <Object>[list1_72, list1_72];
-const list1_74 = <Object>[list1_73, list1_73];
-const list1_75 = <Object>[list1_74, list1_74];
-const list1_76 = <Object>[list1_75, list1_75];
-const list1_77 = <Object>[list1_76, list1_76];
-const list1_78 = <Object>[list1_77, list1_77];
-const list1_79 = <Object>[list1_78, list1_78];
-const list1_80 = <Object>[list1_79, list1_79];
-const list1_81 = <Object>[list1_80, list1_80];
-const list1_82 = <Object>[list1_81, list1_81];
-const list1_83 = <Object>[list1_82, list1_82];
-const list1_84 = <Object>[list1_83, list1_83];
-const list1_85 = <Object>[list1_84, list1_84];
-const list1_86 = <Object>[list1_85, list1_85];
-const list1_87 = <Object>[list1_86, list1_86];
-const list1_88 = <Object>[list1_87, list1_87];
-const list1_89 = <Object>[list1_88, list1_88];
-const list1_90 = <Object>[list1_89, list1_89];
-const list1_91 = <Object>[list1_90, list1_90];
-const list1_92 = <Object>[list1_91, list1_91];
-const list1_93 = <Object>[list1_92, list1_92];
-const list1_94 = <Object>[list1_93, list1_93];
-const list1_95 = <Object>[list1_94, list1_94];
-const list1_96 = <Object>[list1_95, list1_95];
-const list1_97 = <Object>[list1_96, list1_96];
-const list1_98 = <Object>[list1_97, list1_97];
-const list1_99 = <Object>[list1_98, list1_98];
-
-const list2_0 = <Object>[null, null];
-const list2_1 = <Object>[list2_0, list2_0];
-const list2_2 = <Object>[list2_1, list2_1];
-const list2_3 = <Object>[list2_2, list2_2];
-const list2_4 = <Object>[list2_3, list2_3];
-const list2_5 = <Object>[list2_4, list2_4];
-const list2_6 = <Object>[list2_5, list2_5];
-const list2_7 = <Object>[list2_6, list2_6];
-const list2_8 = <Object>[list2_7, list2_7];
-const list2_9 = <Object>[list2_8, list2_8];
-const list2_10 = <Object>[list2_9, list2_9];
-const list2_11 = <Object>[list2_10, list2_10];
-const list2_12 = <Object>[list2_11, list2_11];
-const list2_13 = <Object>[list2_12, list2_12];
-const list2_14 = <Object>[list2_13, list2_13];
-const list2_15 = <Object>[list2_14, list2_14];
-const list2_16 = <Object>[list2_15, list2_15];
-const list2_17 = <Object>[list2_16, list2_16];
-const list2_18 = <Object>[list2_17, list2_17];
-const list2_19 = <Object>[list2_18, list2_18];
-const list2_20 = <Object>[list2_19, list2_19];
-const list2_21 = <Object>[list2_20, list2_20];
-const list2_22 = <Object>[list2_21, list2_21];
-const list2_23 = <Object>[list2_22, list2_22];
-const list2_24 = <Object>[list2_23, list2_23];
-const list2_25 = <Object>[list2_24, list2_24];
-const list2_26 = <Object>[list2_25, list2_25];
-const list2_27 = <Object>[list2_26, list2_26];
-const list2_28 = <Object>[list2_27, list2_27];
-const list2_29 = <Object>[list2_28, list2_28];
-const list2_30 = <Object>[list2_29, list2_29];
-const list2_31 = <Object>[list2_30, list2_30];
-const list2_32 = <Object>[list2_31, list2_31];
-const list2_33 = <Object>[list2_32, list2_32];
-const list2_34 = <Object>[list2_33, list2_33];
-const list2_35 = <Object>[list2_34, list2_34];
-const list2_36 = <Object>[list2_35, list2_35];
-const list2_37 = <Object>[list2_36, list2_36];
-const list2_38 = <Object>[list2_37, list2_37];
-const list2_39 = <Object>[list2_38, list2_38];
-const list2_40 = <Object>[list2_39, list2_39];
-const list2_41 = <Object>[list2_40, list2_40];
-const list2_42 = <Object>[list2_41, list2_41];
-const list2_43 = <Object>[list2_42, list2_42];
-const list2_44 = <Object>[list2_43, list2_43];
-const list2_45 = <Object>[list2_44, list2_44];
-const list2_46 = <Object>[list2_45, list2_45];
-const list2_47 = <Object>[list2_46, list2_46];
-const list2_48 = <Object>[list2_47, list2_47];
-const list2_49 = <Object>[list2_48, list2_48];
-const list2_50 = <Object>[list2_49, list2_49];
-const list2_51 = <Object>[list2_50, list2_50];
-const list2_52 = <Object>[list2_51, list2_51];
-const list2_53 = <Object>[list2_52, list2_52];
-const list2_54 = <Object>[list2_53, list2_53];
-const list2_55 = <Object>[list2_54, list2_54];
-const list2_56 = <Object>[list2_55, list2_55];
-const list2_57 = <Object>[list2_56, list2_56];
-const list2_58 = <Object>[list2_57, list2_57];
-const list2_59 = <Object>[list2_58, list2_58];
-const list2_60 = <Object>[list2_59, list2_59];
-const list2_61 = <Object>[list2_60, list2_60];
-const list2_62 = <Object>[list2_61, list2_61];
-const list2_63 = <Object>[list2_62, list2_62];
-const list2_64 = <Object>[list2_63, list2_63];
-const list2_65 = <Object>[list2_64, list2_64];
-const list2_66 = <Object>[list2_65, list2_65];
-const list2_67 = <Object>[list2_66, list2_66];
-const list2_68 = <Object>[list2_67, list2_67];
-const list2_69 = <Object>[list2_68, list2_68];
-const list2_70 = <Object>[list2_69, list2_69];
-const list2_71 = <Object>[list2_70, list2_70];
-const list2_72 = <Object>[list2_71, list2_71];
-const list2_73 = <Object>[list2_72, list2_72];
-const list2_74 = <Object>[list2_73, list2_73];
-const list2_75 = <Object>[list2_74, list2_74];
-const list2_76 = <Object>[list2_75, list2_75];
-const list2_77 = <Object>[list2_76, list2_76];
-const list2_78 = <Object>[list2_77, list2_77];
-const list2_79 = <Object>[list2_78, list2_78];
-const list2_80 = <Object>[list2_79, list2_79];
-const list2_81 = <Object>[list2_80, list2_80];
-const list2_82 = <Object>[list2_81, list2_81];
-const list2_83 = <Object>[list2_82, list2_82];
-const list2_84 = <Object>[list2_83, list2_83];
-const list2_85 = <Object>[list2_84, list2_84];
-const list2_86 = <Object>[list2_85, list2_85];
-const list2_87 = <Object>[list2_86, list2_86];
-const list2_88 = <Object>[list2_87, list2_87];
-const list2_89 = <Object>[list2_88, list2_88];
-const list2_90 = <Object>[list2_89, list2_89];
-const list2_91 = <Object>[list2_90, list2_90];
-const list2_92 = <Object>[list2_91, list2_91];
-const list2_93 = <Object>[list2_92, list2_92];
-const list2_94 = <Object>[list2_93, list2_93];
-const list2_95 = <Object>[list2_94, list2_94];
-const list2_96 = <Object>[list2_95, list2_95];
-const list2_97 = <Object>[list2_96, list2_96];
-const list2_98 = <Object>[list2_97, list2_97];
-const list2_99 = <Object>[list2_98, list2_98];
-
-confuse(x) {
-  try { throw x; } catch (e) { return e; }
-}
-
-main() {
-  if (!identical(confuse(list1_99), confuse(list2_99))) {
-    throw new Exception("list1_99 !== list2_99");
-  }
-}
diff --git a/tests/language_2/canonicalize/hashing_memoize_instance_test.dart b/tests/language_2/canonicalize/hashing_memoize_instance_test.dart
deleted file mode 100644
index 613d391a82c..00000000000
--- a/tests/language_2/canonicalize/hashing_memoize_instance_test.dart
+++ /dev/null
@@ -1,226 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// If canonicalization uses deep structural hashing without memoizing, this
-// will exhibit superlinear time.
-
-class Box {
-  final Object content1;
-  final Object content2;
-  const Box(this.content1, this.content2);
-}
-
-const box1_0 = Box(null, null);
-const box1_1 = Box(box1_0, box1_0);
-const box1_2 = Box(box1_1, box1_1);
-const box1_3 = Box(box1_2, box1_2);
-const box1_4 = Box(box1_3, box1_3);
-const box1_5 = Box(box1_4, box1_4);
-const box1_6 = Box(box1_5, box1_5);
-const box1_7 = Box(box1_6, box1_6);
-const box1_8 = Box(box1_7, box1_7);
-const box1_9 = Box(box1_8, box1_8);
-const box1_10 = Box(box1_9, box1_9);
-const box1_11 = Box(box1_10, box1_10);
-const box1_12 = Box(box1_11, box1_11);
-const box1_13 = Box(box1_12, box1_12);
-const box1_14 = Box(box1_13, box1_13);
-const box1_15 = Box(box1_14, box1_14);
-const box1_16 = Box(box1_15, box1_15);
-const box1_17 = Box(box1_16, box1_16);
-const box1_18 = Box(box1_17, box1_17);
-const box1_19 = Box(box1_18, box1_18);
-const box1_20 = Box(box1_19, box1_19);
-const box1_21 = Box(box1_20, box1_20);
-const box1_22 = Box(box1_21, box1_21);
-const box1_23 = Box(box1_22, box1_22);
-const box1_24 = Box(box1_23, box1_23);
-const box1_25 = Box(box1_24, box1_24);
-const box1_26 = Box(box1_25, box1_25);
-const box1_27 = Box(box1_26, box1_26);
-const box1_28 = Box(box1_27, box1_27);
-const box1_29 = Box(box1_28, box1_28);
-const box1_30 = Box(box1_29, box1_29);
-const box1_31 = Box(box1_30, box1_30);
-const box1_32 = Box(box1_31, box1_31);
-const box1_33 = Box(box1_32, box1_32);
-const box1_34 = Box(box1_33, box1_33);
-const box1_35 = Box(box1_34, box1_34);
-const box1_36 = Box(box1_35, box1_35);
-const box1_37 = Box(box1_36, box1_36);
-const box1_38 = Box(box1_37, box1_37);
-const box1_39 = Box(box1_38, box1_38);
-const box1_40 = Box(box1_39, box1_39);
-const box1_41 = Box(box1_40, box1_40);
-const box1_42 = Box(box1_41, box1_41);
-const box1_43 = Box(box1_42, box1_42);
-const box1_44 = Box(box1_43, box1_43);
-const box1_45 = Box(box1_44, box1_44);
-const box1_46 = Box(box1_45, box1_45);
-const box1_47 = Box(box1_46, box1_46);
-const box1_48 = Box(box1_47, box1_47);
-const box1_49 = Box(box1_48, box1_48);
-const box1_50 = Box(box1_49, box1_49);
-const box1_51 = Box(box1_50, box1_50);
-const box1_52 = Box(box1_51, box1_51);
-const box1_53 = Box(box1_52, box1_52);
-const box1_54 = Box(box1_53, box1_53);
-const box1_55 = Box(box1_54, box1_54);
-const box1_56 = Box(box1_55, box1_55);
-const box1_57 = Box(box1_56, box1_56);
-const box1_58 = Box(box1_57, box1_57);
-const box1_59 = Box(box1_58, box1_58);
-const box1_60 = Box(box1_59, box1_59);
-const box1_61 = Box(box1_60, box1_60);
-const box1_62 = Box(box1_61, box1_61);
-const box1_63 = Box(box1_62, box1_62);
-const box1_64 = Box(box1_63, box1_63);
-const box1_65 = Box(box1_64, box1_64);
-const box1_66 = Box(box1_65, box1_65);
-const box1_67 = Box(box1_66, box1_66);
-const box1_68 = Box(box1_67, box1_67);
-const box1_69 = Box(box1_68, box1_68);
-const box1_70 = Box(box1_69, box1_69);
-const box1_71 = Box(box1_70, box1_70);
-const box1_72 = Box(box1_71, box1_71);
-const box1_73 = Box(box1_72, box1_72);
-const box1_74 = Box(box1_73, box1_73);
-const box1_75 = Box(box1_74, box1_74);
-const box1_76 = Box(box1_75, box1_75);
-const box1_77 = Box(box1_76, box1_76);
-const box1_78 = Box(box1_77, box1_77);
-const box1_79 = Box(box1_78, box1_78);
-const box1_80 = Box(box1_79, box1_79);
-const box1_81 = Box(box1_80, box1_80);
-const box1_82 = Box(box1_81, box1_81);
-const box1_83 = Box(box1_82, box1_82);
-const box1_84 = Box(box1_83, box1_83);
-const box1_85 = Box(box1_84, box1_84);
-const box1_86 = Box(box1_85, box1_85);
-const box1_87 = Box(box1_86, box1_86);
-const box1_88 = Box(box1_87, box1_87);
-const box1_89 = Box(box1_88, box1_88);
-const box1_90 = Box(box1_89, box1_89);
-const box1_91 = Box(box1_90, box1_90);
-const box1_92 = Box(box1_91, box1_91);
-const box1_93 = Box(box1_92, box1_92);
-const box1_94 = Box(box1_93, box1_93);
-const box1_95 = Box(box1_94, box1_94);
-const box1_96 = Box(box1_95, box1_95);
-const box1_97 = Box(box1_96, box1_96);
-const box1_98 = Box(box1_97, box1_97);
-const box1_99 = Box(box1_98, box1_98);
-
-const box2_0 = Box(null, null);
-const box2_1 = Box(box2_0, box2_0);
-const box2_2 = Box(box2_1, box2_1);
-const box2_3 = Box(box2_2, box2_2);
-const box2_4 = Box(box2_3, box2_3);
-const box2_5 = Box(box2_4, box2_4);
-const box2_6 = Box(box2_5, box2_5);
-const box2_7 = Box(box2_6, box2_6);
-const box2_8 = Box(box2_7, box2_7);
-const box2_9 = Box(box2_8, box2_8);
-const box2_10 = Box(box2_9, box2_9);
-const box2_11 = Box(box2_10, box2_10);
-const box2_12 = Box(box2_11, box2_11);
-const box2_13 = Box(box2_12, box2_12);
-const box2_14 = Box(box2_13, box2_13);
-const box2_15 = Box(box2_14, box2_14);
-const box2_16 = Box(box2_15, box2_15);
-const box2_17 = Box(box2_16, box2_16);
-const box2_18 = Box(box2_17, box2_17);
-const box2_19 = Box(box2_18, box2_18);
-const box2_20 = Box(box2_19, box2_19);
-const box2_21 = Box(box2_20, box2_20);
-const box2_22 = Box(box2_21, box2_21);
-const box2_23 = Box(box2_22, box2_22);
-const box2_24 = Box(box2_23, box2_23);
-const box2_25 = Box(box2_24, box2_24);
-const box2_26 = Box(box2_25, box2_25);
-const box2_27 = Box(box2_26, box2_26);
-const box2_28 = Box(box2_27, box2_27);
-const box2_29 = Box(box2_28, box2_28);
-const box2_30 = Box(box2_29, box2_29);
-const box2_31 = Box(box2_30, box2_30);
-const box2_32 = Box(box2_31, box2_31);
-const box2_33 = Box(box2_32, box2_32);
-const box2_34 = Box(box2_33, box2_33);
-const box2_35 = Box(box2_34, box2_34);
-const box2_36 = Box(box2_35, box2_35);
-const box2_37 = Box(box2_36, box2_36);
-const box2_38 = Box(box2_37, box2_37);
-const box2_39 = Box(box2_38, box2_38);
-const box2_40 = Box(box2_39, box2_39);
-const box2_41 = Box(box2_40, box2_40);
-const box2_42 = Box(box2_41, box2_41);
-const box2_43 = Box(box2_42, box2_42);
-const box2_44 = Box(box2_43, box2_43);
-const box2_45 = Box(box2_44, box2_44);
-const box2_46 = Box(box2_45, box2_45);
-const box2_47 = Box(box2_46, box2_46);
-const box2_48 = Box(box2_47, box2_47);
-const box2_49 = Box(box2_48, box2_48);
-const box2_50 = Box(box2_49, box2_49);
-const box2_51 = Box(box2_50, box2_50);
-const box2_52 = Box(box2_51, box2_51);
-const box2_53 = Box(box2_52, box2_52);
-const box2_54 = Box(box2_53, box2_53);
-const box2_55 = Box(box2_54, box2_54);
-const box2_56 = Box(box2_55, box2_55);
-const box2_57 = Box(box2_56, box2_56);
-const box2_58 = Box(box2_57, box2_57);
-const box2_59 = Box(box2_58, box2_58);
-const box2_60 = Box(box2_59, box2_59);
-const box2_61 = Box(box2_60, box2_60);
-const box2_62 = Box(box2_61, box2_61);
-const box2_63 = Box(box2_62, box2_62);
-const box2_64 = Box(box2_63, box2_63);
-const box2_65 = Box(box2_64, box2_64);
-const box2_66 = Box(box2_65, box2_65);
-const box2_67 = Box(box2_66, box2_66);
-const box2_68 = Box(box2_67, box2_67);
-const box2_69 = Box(box2_68, box2_68);
-const box2_70 = Box(box2_69, box2_69);
-const box2_71 = Box(box2_70, box2_70);
-const box2_72 = Box(box2_71, box2_71);
-const box2_73 = Box(box2_72, box2_72);
-const box2_74 = Box(box2_73, box2_73);
-const box2_75 = Box(box2_74, box2_74);
-const box2_76 = Box(box2_75, box2_75);
-const box2_77 = Box(box2_76, box2_76);
-const box2_78 = Box(box2_77, box2_77);
-const box2_79 = Box(box2_78, box2_78);
-const box2_80 = Box(box2_79, box2_79);
-const box2_81 = Box(box2_80, box2_80);
-const box2_82 = Box(box2_81, box2_81);
-const box2_83 = Box(box2_82, box2_82);
-const box2_84 = Box(box2_83, box2_83);
-const box2_85 = Box(box2_84, box2_84);
-const box2_86 = Box(box2_85, box2_85);
-const box2_87 = Box(box2_86, box2_86);
-const box2_88 = Box(box2_87, box2_87);
-const box2_89 = Box(box2_88, box2_88);
-const box2_90 = Box(box2_89, box2_89);
-const box2_91 = Box(box2_90, box2_90);
-const box2_92 = Box(box2_91, box2_91);
-const box2_93 = Box(box2_92, box2_92);
-const box2_94 = Box(box2_93, box2_93);
-const box2_95 = Box(box2_94, box2_94);
-const box2_96 = Box(box2_95, box2_95);
-const box2_97 = Box(box2_96, box2_96);
-const box2_98 = Box(box2_97, box2_97);
-const box2_99 = Box(box2_98, box2_98);
-
-confuse(x) {
-  try { throw x; } catch (e) { return e; }
-}
-
-main() {
-  if (!identical(confuse(box1_99), confuse(box2_99))) {
-    throw new Exception("box1_99 !== box2_99");
-  }
-}
diff --git a/tests/language_2/canonicalize/hashing_shallow_collision_array_test.dart b/tests/language_2/canonicalize/hashing_shallow_collision_array_test.dart
deleted file mode 100644
index 38de63769e3..00000000000
--- a/tests/language_2/canonicalize/hashing_shallow_collision_array_test.dart
+++ /dev/null
@@ -1,20026 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// If canonicalization hashes with only a field's cid, this will exhibit
-// quadratic time.
-
-// 10,000 elements.
-const list1 = [
-[[0]],
-[[1]],
-[[2]],
-[[3]],
-[[4]],
-[[5]],
-[[6]],
-[[7]],
-[[8]],
-[[9]],
-[[10]],
-[[11]],
-[[12]],
-[[13]],
-[[14]],
-[[15]],
-[[16]],
-[[17]],
-[[18]],
-[[19]],
-[[20]],
-[[21]],
-[[22]],
-[[23]],
-[[24]],
-[[25]],
-[[26]],
-[[27]],
-[[28]],
-[[29]],
-[[30]],
-[[31]],
-[[32]],
-[[33]],
-[[34]],
-[[35]],
-[[36]],
-[[37]],
-[[38]],
-[[39]],
-[[40]],
-[[41]],
-[[42]],
-[[43]],
-[[44]],
-[[45]],
-[[46]],
-[[47]],
-[[48]],
-[[49]],
-[[50]],
-[[51]],
-[[52]],
-[[53]],
-[[54]],
-[[55]],
-[[56]],
-[[57]],
-[[58]],
-[[59]],
-[[60]],
-[[61]],
-[[62]],
-[[63]],
-[[64]],
-[[65]],
-[[66]],
-[[67]],
-[[68]],
-[[69]],
-[[70]],
-[[71]],
-[[72]],
-[[73]],
-[[74]],
-[[75]],
-[[76]],
-[[77]],
-[[78]],
-[[79]],
-[[80]],
-[[81]],
-[[82]],
-[[83]],
-[[84]],
-[[85]],
-[[86]],
-[[87]],
-[[88]],
-[[89]],
-[[90]],
-[[91]],
-[[92]],
-[[93]],
-[[94]],
-[[95]],
-[[96]],
-[[97]],
-[[98]],
-[[99]],
-[[100]],
-[[101]],
-[[102]],
-[[103]],
-[[104]],
-[[105]],
-[[106]],
-[[107]],
-[[108]],
-[[109]],
-[[110]],
-[[111]],
-[[112]],
-[[113]],
-[[114]],
-[[115]],
-[[116]],
-[[117]],
-[[118]],
-[[119]],
-[[120]],
-[[121]],
-[[122]],
-[[123]],
-[[124]],
-[[125]],
-[[126]],
-[[127]],
-[[128]],
-[[129]],
-[[130]],
-[[131]],
-[[132]],
-[[133]],
-[[134]],
-[[135]],
-[[136]],
-[[137]],
-[[138]],
-[[139]],
-[[140]],
-[[141]],
-[[142]],
-[[143]],
-[[144]],
-[[145]],
-[[146]],
-[[147]],
-[[148]],
-[[149]],
-[[150]],
-[[151]],
-[[152]],
-[[153]],
-[[154]],
-[[155]],
-[[156]],
-[[157]],
-[[158]],
-[[159]],
-[[160]],
-[[161]],
-[[162]],
-[[163]],
-[[164]],
-[[165]],
-[[166]],
-[[167]],
-[[168]],
-[[169]],
-[[170]],
-[[171]],
-[[172]],
-[[173]],
-[[174]],
-[[175]],
-[[176]],
-[[177]],
-[[178]],
-[[179]],
-[[180]],
-[[181]],
-[[182]],
-[[183]],
-[[184]],
-[[185]],
-[[186]],
-[[187]],
-[[188]],
-[[189]],
-[[190]],
-[[191]],
-[[192]],
-[[193]],
-[[194]],
-[[195]],
-[[196]],
-[[197]],
-[[198]],
-[[199]],
-[[200]],
-[[201]],
-[[202]],
-[[203]],
-[[204]],
-[[205]],
-[[206]],
-[[207]],
-[[208]],
-[[209]],
-[[210]],
-[[211]],
-[[212]],
-[[213]],
-[[214]],
-[[215]],
-[[216]],
-[[217]],
-[[218]],
-[[219]],
-[[220]],
-[[221]],
-[[222]],
-[[223]],
-[[224]],
-[[225]],
-[[226]],
-[[227]],
-[[228]],
-[[229]],
-[[230]],
-[[231]],
-[[232]],
-[[233]],
-[[234]],
-[[235]],
-[[236]],
-[[237]],
-[[238]],
-[[239]],
-[[240]],
-[[241]],
-[[242]],
-[[243]],
-[[244]],
-[[245]],
-[[246]],
-[[247]],
-[[248]],
-[[249]],
-[[250]],
-[[251]],
-[[252]],
-[[253]],
-[[254]],
-[[255]],
-[[256]],
-[[257]],
-[[258]],
-[[259]],
-[[260]],
-[[261]],
-[[262]],
-[[263]],
-[[264]],
-[[265]],
-[[266]],
-[[267]],
-[[268]],
-[[269]],
-[[270]],
-[[271]],
-[[272]],
-[[273]],
-[[274]],
-[[275]],
-[[276]],
-[[277]],
-[[278]],
-[[279]],
-[[280]],
-[[281]],
-[[282]],
-[[283]],
-[[284]],
-[[285]],
-[[286]],
-[[287]],
-[[288]],
-[[289]],
-[[290]],
-[[291]],
-[[292]],
-[[293]],
-[[294]],
-[[295]],
-[[296]],
-[[297]],
-[[298]],
-[[299]],
-[[300]],
-[[301]],
-[[302]],
-[[303]],
-[[304]],
-[[305]],
-[[306]],
-[[307]],
-[[308]],
-[[309]],
-[[310]],
-[[311]],
-[[312]],
-[[313]],
-[[314]],
-[[315]],
-[[316]],
-[[317]],
-[[318]],
-[[319]],
-[[320]],
-[[321]],
-[[322]],
-[[323]],
-[[324]],
-[[325]],
-[[326]],
-[[327]],
-[[328]],
-[[329]],
-[[330]],
-[[331]],
-[[332]],
-[[333]],
-[[334]],
-[[335]],
-[[336]],
-[[337]],
-[[338]],
-[[339]],
-[[340]],
-[[341]],
-[[342]],
-[[343]],
-[[344]],
-[[345]],
-[[346]],
-[[347]],
-[[348]],
-[[349]],
-[[350]],
-[[351]],
-[[352]],
-[[353]],
-[[354]],
-[[355]],
-[[356]],
-[[357]],
-[[358]],
-[[359]],
-[[360]],
-[[361]],
-[[362]],
-[[363]],
-[[364]],
-[[365]],
-[[366]],
-[[367]],
-[[368]],
-[[369]],
-[[370]],
-[[371]],
-[[372]],
-[[373]],
-[[374]],
-[[375]],
-[[376]],
-[[377]],
-[[378]],
-[[379]],
-[[380]],
-[[381]],
-[[382]],
-[[383]],
-[[384]],
-[[385]],
-[[386]],
-[[387]],
-[[388]],
-[[389]],
-[[390]],
-[[391]],
-[[392]],
-[[393]],
-[[394]],
-[[395]],
-[[396]],
-[[397]],
-[[398]],
-[[399]],
-[[400]],
-[[401]],
-[[402]],
-[[403]],
-[[404]],
-[[405]],
-[[406]],
-[[407]],
-[[408]],
-[[409]],
-[[410]],
-[[411]],
-[[412]],
-[[413]],
-[[414]],
-[[415]],
-[[416]],
-[[417]],
-[[418]],
-[[419]],
-[[420]],
-[[421]],
-[[422]],
-[[423]],
-[[424]],
-[[425]],
-[[426]],
-[[427]],
-[[428]],
-[[429]],
-[[430]],
-[[431]],
-[[432]],
-[[433]],
-[[434]],
-[[435]],
-[[436]],
-[[437]],
-[[438]],
-[[439]],
-[[440]],
-[[441]],
-[[442]],
-[[443]],
-[[444]],
-[[445]],
-[[446]],
-[[447]],
-[[448]],
-[[449]],
-[[450]],
-[[451]],
-[[452]],
-[[453]],
-[[454]],
-[[455]],
-[[456]],
-[[457]],
-[[458]],
-[[459]],
-[[460]],
-[[461]],
-[[462]],
-[[463]],
-[[464]],
-[[465]],
-[[466]],
-[[467]],
-[[468]],
-[[469]],
-[[470]],
-[[471]],
-[[472]],
-[[473]],
-[[474]],
-[[475]],
-[[476]],
-[[477]],
-[[478]],
-[[479]],
-[[480]],
-[[481]],
-[[482]],
-[[483]],
-[[484]],
-[[485]],
-[[486]],
-[[487]],
-[[488]],
-[[489]],
-[[490]],
-[[491]],
-[[492]],
-[[493]],
-[[494]],
-[[495]],
-[[496]],
-[[497]],
-[[498]],
-[[499]],
-[[500]],
-[[501]],
-[[502]],
-[[503]],
-[[504]],
-[[505]],
-[[506]],
-[[507]],
-[[508]],
-[[509]],
-[[510]],
-[[511]],
-[[512]],
-[[513]],
-[[514]],
-[[515]],
-[[516]],
-[[517]],
-[[518]],
-[[519]],
-[[520]],
-[[521]],
-[[522]],
-[[523]],
-[[524]],
-[[525]],
-[[526]],
-[[527]],
-[[528]],
-[[529]],
-[[530]],
-[[531]],
-[[532]],
-[[533]],
-[[534]],
-[[535]],
-[[536]],
-[[537]],
-[[538]],
-[[539]],
-[[540]],
-[[541]],
-[[542]],
-[[543]],
-[[544]],
-[[545]],
-[[546]],
-[[547]],
-[[548]],
-[[549]],
-[[550]],
-[[551]],
-[[552]],
-[[553]],
-[[554]],
-[[555]],
-[[556]],
-[[557]],
-[[558]],
-[[559]],
-[[560]],
-[[561]],
-[[562]],
-[[563]],
-[[564]],
-[[565]],
-[[566]],
-[[567]],
-[[568]],
-[[569]],
-[[570]],
-[[571]],
-[[572]],
-[[573]],
-[[574]],
-[[575]],
-[[576]],
-[[577]],
-[[578]],
-[[579]],
-[[580]],
-[[581]],
-[[582]],
-[[583]],
-[[584]],
-[[585]],
-[[586]],
-[[587]],
-[[588]],
-[[589]],
-[[590]],
-[[591]],
-[[592]],
-[[593]],
-[[594]],
-[[595]],
-[[596]],
-[[597]],
-[[598]],
-[[599]],
-[[600]],
-[[601]],
-[[602]],
-[[603]],
-[[604]],
-[[605]],
-[[606]],
-[[607]],
-[[608]],
-[[609]],
-[[610]],
-[[611]],
-[[612]],
-[[613]],
-[[614]],
-[[615]],
-[[616]],
-[[617]],
-[[618]],
-[[619]],
-[[620]],
-[[621]],
-[[622]],
-[[623]],
-[[624]],
-[[625]],
-[[626]],
-[[627]],
-[[628]],
-[[629]],
-[[630]],
-[[631]],
-[[632]],
-[[633]],
-[[634]],
-[[635]],
-[[636]],
-[[637]],
-[[638]],
-[[639]],
-[[640]],
-[[641]],
-[[642]],
-[[643]],
-[[644]],
-[[645]],
-[[646]],
-[[647]],
-[[648]],
-[[649]],
-[[650]],
-[[651]],
-[[652]],
-[[653]],
-[[654]],
-[[655]],
-[[656]],
-[[657]],
-[[658]],
-[[659]],
-[[660]],
-[[661]],
-[[662]],
-[[663]],
-[[664]],
-[[665]],
-[[666]],
-[[667]],
-[[668]],
-[[669]],
-[[670]],
-[[671]],
-[[672]],
-[[673]],
-[[674]],
-[[675]],
-[[676]],
-[[677]],
-[[678]],
-[[679]],
-[[680]],
-[[681]],
-[[682]],
-[[683]],
-[[684]],
-[[685]],
-[[686]],
-[[687]],
-[[688]],
-[[689]],
-[[690]],
-[[691]],
-[[692]],
-[[693]],
-[[694]],
-[[695]],
-[[696]],
-[[697]],
-[[698]],
-[[699]],
-[[700]],
-[[701]],
-[[702]],
-[[703]],
-[[704]],
-[[705]],
-[[706]],
-[[707]],
-[[708]],
-[[709]],
-[[710]],
-[[711]],
-[[712]],
-[[713]],
-[[714]],
-[[715]],
-[[716]],
-[[717]],
-[[718]],
-[[719]],
-[[720]],
-[[721]],
-[[722]],
-[[723]],
-[[724]],
-[[725]],
-[[726]],
-[[727]],
-[[728]],
-[[729]],
-[[730]],
-[[731]],
-[[732]],
-[[733]],
-[[734]],
-[[735]],
-[[736]],
-[[737]],
-[[738]],
-[[739]],
-[[740]],
-[[741]],
-[[742]],
-[[743]],
-[[744]],
-[[745]],
-[[746]],
-[[747]],
-[[748]],
-[[749]],
-[[750]],
-[[751]],
-[[752]],
-[[753]],
-[[754]],
-[[755]],
-[[756]],
-[[757]],
-[[758]],
-[[759]],
-[[760]],
-[[761]],
-[[762]],
-[[763]],
-[[764]],
-[[765]],
-[[766]],
-[[767]],
-[[768]],
-[[769]],
-[[770]],
-[[771]],
-[[772]],
-[[773]],
-[[774]],
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-[[778]],
-[[779]],
-[[780]],
-[[781]],
-[[782]],
-[[783]],
-[[784]],
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-[[787]],
-[[788]],
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-[[790]],
-[[791]],
-[[792]],
-[[793]],
-[[794]],
-[[795]],
-[[796]],
-[[797]],
-[[798]],
-[[799]],
-[[800]],
-[[801]],
-[[802]],
-[[803]],
-[[804]],
-[[805]],
-[[806]],
-[[807]],
-[[808]],
-[[809]],
-[[810]],
-[[811]],
-[[812]],
-[[813]],
-[[814]],
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-[[816]],
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-[[818]],
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-[[861]],
-[[862]],
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-[[865]],
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-[[871]],
-[[872]],
-[[873]],
-[[874]],
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-[[881]],
-[[882]],
-[[883]],
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-[[887]],
-[[888]],
-[[889]],
-[[890]],
-[[891]],
-[[892]],
-[[893]],
-[[894]],
-[[895]],
-[[896]],
-[[897]],
-[[898]],
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-[[900]],
-[[901]],
-[[902]],
-[[903]],
-[[904]],
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-[[906]],
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-[[908]],
-[[909]],
-[[910]],
-[[911]],
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-[[913]],
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-[[915]],
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-[[961]],
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-[[963]],
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-[[965]],
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-[[967]],
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-[[969]],
-[[970]],
-[[971]],
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-[[973]],
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-[[977]],
-[[978]],
-[[979]],
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-[[981]],
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-[[983]],
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-[[985]],
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-[[987]],
-[[988]],
-[[989]],
-[[990]],
-[[991]],
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-[[993]],
-[[994]],
-[[995]],
-[[996]],
-[[997]],
-[[998]],
-[[999]],
-[[1000]],
-[[1001]],
-[[1002]],
-[[1003]],
-[[1004]],
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-[[1006]],
-[[1007]],
-[[1008]],
-[[1009]],
-[[1010]],
-[[1011]],
-[[1012]],
-[[1013]],
-[[1014]],
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-[[1016]],
-[[1017]],
-[[1018]],
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-[[1020]],
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-[[1022]],
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-[[1097]],
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-[[1099]],
-[[1100]],
-[[1101]],
-[[1102]],
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-[[1122]],
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-[[1128]],
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-[[1173]],
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-[[1175]],
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-[[1177]],
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-[[1179]],
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-[[1181]],
-[[1182]],
-[[1183]],
-[[1184]],
-[[1185]],
-[[1186]],
-[[1187]],
-[[1188]],
-[[1189]],
-[[1190]],
-[[1191]],
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-[[9385]],
-[[9386]],
-[[9387]],
-[[9388]],
-[[9389]],
-[[9390]],
-[[9391]],
-[[9392]],
-[[9393]],
-[[9394]],
-[[9395]],
-[[9396]],
-[[9397]],
-[[9398]],
-[[9399]],
-[[9400]],
-[[9401]],
-[[9402]],
-[[9403]],
-[[9404]],
-[[9405]],
-[[9406]],
-[[9407]],
-[[9408]],
-[[9409]],
-[[9410]],
-[[9411]],
-[[9412]],
-[[9413]],
-[[9414]],
-[[9415]],
-[[9416]],
-[[9417]],
-[[9418]],
-[[9419]],
-[[9420]],
-[[9421]],
-[[9422]],
-[[9423]],
-[[9424]],
-[[9425]],
-[[9426]],
-[[9427]],
-[[9428]],
-[[9429]],
-[[9430]],
-[[9431]],
-[[9432]],
-[[9433]],
-[[9434]],
-[[9435]],
-[[9436]],
-[[9437]],
-[[9438]],
-[[9439]],
-[[9440]],
-[[9441]],
-[[9442]],
-[[9443]],
-[[9444]],
-[[9445]],
-[[9446]],
-[[9447]],
-[[9448]],
-[[9449]],
-[[9450]],
-[[9451]],
-[[9452]],
-[[9453]],
-[[9454]],
-[[9455]],
-[[9456]],
-[[9457]],
-[[9458]],
-[[9459]],
-[[9460]],
-[[9461]],
-[[9462]],
-[[9463]],
-[[9464]],
-[[9465]],
-[[9466]],
-[[9467]],
-[[9468]],
-[[9469]],
-[[9470]],
-[[9471]],
-[[9472]],
-[[9473]],
-[[9474]],
-[[9475]],
-[[9476]],
-[[9477]],
-[[9478]],
-[[9479]],
-[[9480]],
-[[9481]],
-[[9482]],
-[[9483]],
-[[9484]],
-[[9485]],
-[[9486]],
-[[9487]],
-[[9488]],
-[[9489]],
-[[9490]],
-[[9491]],
-[[9492]],
-[[9493]],
-[[9494]],
-[[9495]],
-[[9496]],
-[[9497]],
-[[9498]],
-[[9499]],
-[[9500]],
-[[9501]],
-[[9502]],
-[[9503]],
-[[9504]],
-[[9505]],
-[[9506]],
-[[9507]],
-[[9508]],
-[[9509]],
-[[9510]],
-[[9511]],
-[[9512]],
-[[9513]],
-[[9514]],
-[[9515]],
-[[9516]],
-[[9517]],
-[[9518]],
-[[9519]],
-[[9520]],
-[[9521]],
-[[9522]],
-[[9523]],
-[[9524]],
-[[9525]],
-[[9526]],
-[[9527]],
-[[9528]],
-[[9529]],
-[[9530]],
-[[9531]],
-[[9532]],
-[[9533]],
-[[9534]],
-[[9535]],
-[[9536]],
-[[9537]],
-[[9538]],
-[[9539]],
-[[9540]],
-[[9541]],
-[[9542]],
-[[9543]],
-[[9544]],
-[[9545]],
-[[9546]],
-[[9547]],
-[[9548]],
-[[9549]],
-[[9550]],
-[[9551]],
-[[9552]],
-[[9553]],
-[[9554]],
-[[9555]],
-[[9556]],
-[[9557]],
-[[9558]],
-[[9559]],
-[[9560]],
-[[9561]],
-[[9562]],
-[[9563]],
-[[9564]],
-[[9565]],
-[[9566]],
-[[9567]],
-[[9568]],
-[[9569]],
-[[9570]],
-[[9571]],
-[[9572]],
-[[9573]],
-[[9574]],
-[[9575]],
-[[9576]],
-[[9577]],
-[[9578]],
-[[9579]],
-[[9580]],
-[[9581]],
-[[9582]],
-[[9583]],
-[[9584]],
-[[9585]],
-[[9586]],
-[[9587]],
-[[9588]],
-[[9589]],
-[[9590]],
-[[9591]],
-[[9592]],
-[[9593]],
-[[9594]],
-[[9595]],
-[[9596]],
-[[9597]],
-[[9598]],
-[[9599]],
-[[9600]],
-[[9601]],
-[[9602]],
-[[9603]],
-[[9604]],
-[[9605]],
-[[9606]],
-[[9607]],
-[[9608]],
-[[9609]],
-[[9610]],
-[[9611]],
-[[9612]],
-[[9613]],
-[[9614]],
-[[9615]],
-[[9616]],
-[[9617]],
-[[9618]],
-[[9619]],
-[[9620]],
-[[9621]],
-[[9622]],
-[[9623]],
-[[9624]],
-[[9625]],
-[[9626]],
-[[9627]],
-[[9628]],
-[[9629]],
-[[9630]],
-[[9631]],
-[[9632]],
-[[9633]],
-[[9634]],
-[[9635]],
-[[9636]],
-[[9637]],
-[[9638]],
-[[9639]],
-[[9640]],
-[[9641]],
-[[9642]],
-[[9643]],
-[[9644]],
-[[9645]],
-[[9646]],
-[[9647]],
-[[9648]],
-[[9649]],
-[[9650]],
-[[9651]],
-[[9652]],
-[[9653]],
-[[9654]],
-[[9655]],
-[[9656]],
-[[9657]],
-[[9658]],
-[[9659]],
-[[9660]],
-[[9661]],
-[[9662]],
-[[9663]],
-[[9664]],
-[[9665]],
-[[9666]],
-[[9667]],
-[[9668]],
-[[9669]],
-[[9670]],
-[[9671]],
-[[9672]],
-[[9673]],
-[[9674]],
-[[9675]],
-[[9676]],
-[[9677]],
-[[9678]],
-[[9679]],
-[[9680]],
-[[9681]],
-[[9682]],
-[[9683]],
-[[9684]],
-[[9685]],
-[[9686]],
-[[9687]],
-[[9688]],
-[[9689]],
-[[9690]],
-[[9691]],
-[[9692]],
-[[9693]],
-[[9694]],
-[[9695]],
-[[9696]],
-[[9697]],
-[[9698]],
-[[9699]],
-[[9700]],
-[[9701]],
-[[9702]],
-[[9703]],
-[[9704]],
-[[9705]],
-[[9706]],
-[[9707]],
-[[9708]],
-[[9709]],
-[[9710]],
-[[9711]],
-[[9712]],
-[[9713]],
-[[9714]],
-[[9715]],
-[[9716]],
-[[9717]],
-[[9718]],
-[[9719]],
-[[9720]],
-[[9721]],
-[[9722]],
-[[9723]],
-[[9724]],
-[[9725]],
-[[9726]],
-[[9727]],
-[[9728]],
-[[9729]],
-[[9730]],
-[[9731]],
-[[9732]],
-[[9733]],
-[[9734]],
-[[9735]],
-[[9736]],
-[[9737]],
-[[9738]],
-[[9739]],
-[[9740]],
-[[9741]],
-[[9742]],
-[[9743]],
-[[9744]],
-[[9745]],
-[[9746]],
-[[9747]],
-[[9748]],
-[[9749]],
-[[9750]],
-[[9751]],
-[[9752]],
-[[9753]],
-[[9754]],
-[[9755]],
-[[9756]],
-[[9757]],
-[[9758]],
-[[9759]],
-[[9760]],
-[[9761]],
-[[9762]],
-[[9763]],
-[[9764]],
-[[9765]],
-[[9766]],
-[[9767]],
-[[9768]],
-[[9769]],
-[[9770]],
-[[9771]],
-[[9772]],
-[[9773]],
-[[9774]],
-[[9775]],
-[[9776]],
-[[9777]],
-[[9778]],
-[[9779]],
-[[9780]],
-[[9781]],
-[[9782]],
-[[9783]],
-[[9784]],
-[[9785]],
-[[9786]],
-[[9787]],
-[[9788]],
-[[9789]],
-[[9790]],
-[[9791]],
-[[9792]],
-[[9793]],
-[[9794]],
-[[9795]],
-[[9796]],
-[[9797]],
-[[9798]],
-[[9799]],
-[[9800]],
-[[9801]],
-[[9802]],
-[[9803]],
-[[9804]],
-[[9805]],
-[[9806]],
-[[9807]],
-[[9808]],
-[[9809]],
-[[9810]],
-[[9811]],
-[[9812]],
-[[9813]],
-[[9814]],
-[[9815]],
-[[9816]],
-[[9817]],
-[[9818]],
-[[9819]],
-[[9820]],
-[[9821]],
-[[9822]],
-[[9823]],
-[[9824]],
-[[9825]],
-[[9826]],
-[[9827]],
-[[9828]],
-[[9829]],
-[[9830]],
-[[9831]],
-[[9832]],
-[[9833]],
-[[9834]],
-[[9835]],
-[[9836]],
-[[9837]],
-[[9838]],
-[[9839]],
-[[9840]],
-[[9841]],
-[[9842]],
-[[9843]],
-[[9844]],
-[[9845]],
-[[9846]],
-[[9847]],
-[[9848]],
-[[9849]],
-[[9850]],
-[[9851]],
-[[9852]],
-[[9853]],
-[[9854]],
-[[9855]],
-[[9856]],
-[[9857]],
-[[9858]],
-[[9859]],
-[[9860]],
-[[9861]],
-[[9862]],
-[[9863]],
-[[9864]],
-[[9865]],
-[[9866]],
-[[9867]],
-[[9868]],
-[[9869]],
-[[9870]],
-[[9871]],
-[[9872]],
-[[9873]],
-[[9874]],
-[[9875]],
-[[9876]],
-[[9877]],
-[[9878]],
-[[9879]],
-[[9880]],
-[[9881]],
-[[9882]],
-[[9883]],
-[[9884]],
-[[9885]],
-[[9886]],
-[[9887]],
-[[9888]],
-[[9889]],
-[[9890]],
-[[9891]],
-[[9892]],
-[[9893]],
-[[9894]],
-[[9895]],
-[[9896]],
-[[9897]],
-[[9898]],
-[[9899]],
-[[9900]],
-[[9901]],
-[[9902]],
-[[9903]],
-[[9904]],
-[[9905]],
-[[9906]],
-[[9907]],
-[[9908]],
-[[9909]],
-[[9910]],
-[[9911]],
-[[9912]],
-[[9913]],
-[[9914]],
-[[9915]],
-[[9916]],
-[[9917]],
-[[9918]],
-[[9919]],
-[[9920]],
-[[9921]],
-[[9922]],
-[[9923]],
-[[9924]],
-[[9925]],
-[[9926]],
-[[9927]],
-[[9928]],
-[[9929]],
-[[9930]],
-[[9931]],
-[[9932]],
-[[9933]],
-[[9934]],
-[[9935]],
-[[9936]],
-[[9937]],
-[[9938]],
-[[9939]],
-[[9940]],
-[[9941]],
-[[9942]],
-[[9943]],
-[[9944]],
-[[9945]],
-[[9946]],
-[[9947]],
-[[9948]],
-[[9949]],
-[[9950]],
-[[9951]],
-[[9952]],
-[[9953]],
-[[9954]],
-[[9955]],
-[[9956]],
-[[9957]],
-[[9958]],
-[[9959]],
-[[9960]],
-[[9961]],
-[[9962]],
-[[9963]],
-[[9964]],
-[[9965]],
-[[9966]],
-[[9967]],
-[[9968]],
-[[9969]],
-[[9970]],
-[[9971]],
-[[9972]],
-[[9973]],
-[[9974]],
-[[9975]],
-[[9976]],
-[[9977]],
-[[9978]],
-[[9979]],
-[[9980]],
-[[9981]],
-[[9982]],
-[[9983]],
-[[9984]],
-[[9985]],
-[[9986]],
-[[9987]],
-[[9988]],
-[[9989]],
-[[9990]],
-[[9991]],
-[[9992]],
-[[9993]],
-[[9994]],
-[[9995]],
-[[9996]],
-[[9997]],
-[[9998]],
-[[9999]],
-];
-
-// 10,000 elements.
-const list2 = [
-[[0]],
-[[1]],
-[[2]],
-[[3]],
-[[4]],
-[[5]],
-[[6]],
-[[7]],
-[[8]],
-[[9]],
-[[10]],
-[[11]],
-[[12]],
-[[13]],
-[[14]],
-[[15]],
-[[16]],
-[[17]],
-[[18]],
-[[19]],
-[[20]],
-[[21]],
-[[22]],
-[[23]],
-[[24]],
-[[25]],
-[[26]],
-[[27]],
-[[28]],
-[[29]],
-[[30]],
-[[31]],
-[[32]],
-[[33]],
-[[34]],
-[[35]],
-[[36]],
-[[37]],
-[[38]],
-[[39]],
-[[40]],
-[[41]],
-[[42]],
-[[43]],
-[[44]],
-[[45]],
-[[46]],
-[[47]],
-[[48]],
-[[49]],
-[[50]],
-[[51]],
-[[52]],
-[[53]],
-[[54]],
-[[55]],
-[[56]],
-[[57]],
-[[58]],
-[[59]],
-[[60]],
-[[61]],
-[[62]],
-[[63]],
-[[64]],
-[[65]],
-[[66]],
-[[67]],
-[[68]],
-[[69]],
-[[70]],
-[[71]],
-[[72]],
-[[73]],
-[[74]],
-[[75]],
-[[76]],
-[[77]],
-[[78]],
-[[79]],
-[[80]],
-[[81]],
-[[82]],
-[[83]],
-[[84]],
-[[85]],
-[[86]],
-[[87]],
-[[88]],
-[[89]],
-[[90]],
-[[91]],
-[[92]],
-[[93]],
-[[94]],
-[[95]],
-[[96]],
-[[97]],
-[[98]],
-[[99]],
-[[100]],
-[[101]],
-[[102]],
-[[103]],
-[[104]],
-[[105]],
-[[106]],
-[[107]],
-[[108]],
-[[109]],
-[[110]],
-[[111]],
-[[112]],
-[[113]],
-[[114]],
-[[115]],
-[[116]],
-[[117]],
-[[118]],
-[[119]],
-[[120]],
-[[121]],
-[[122]],
-[[123]],
-[[124]],
-[[125]],
-[[126]],
-[[127]],
-[[128]],
-[[129]],
-[[130]],
-[[131]],
-[[132]],
-[[133]],
-[[134]],
-[[135]],
-[[136]],
-[[137]],
-[[138]],
-[[139]],
-[[140]],
-[[141]],
-[[142]],
-[[143]],
-[[144]],
-[[145]],
-[[146]],
-[[147]],
-[[148]],
-[[149]],
-[[150]],
-[[151]],
-[[152]],
-[[153]],
-[[154]],
-[[155]],
-[[156]],
-[[157]],
-[[158]],
-[[159]],
-[[160]],
-[[161]],
-[[162]],
-[[163]],
-[[164]],
-[[165]],
-[[166]],
-[[167]],
-[[168]],
-[[169]],
-[[170]],
-[[171]],
-[[172]],
-[[173]],
-[[174]],
-[[175]],
-[[176]],
-[[177]],
-[[178]],
-[[179]],
-[[180]],
-[[181]],
-[[182]],
-[[183]],
-[[184]],
-[[185]],
-[[186]],
-[[187]],
-[[188]],
-[[189]],
-[[190]],
-[[191]],
-[[192]],
-[[193]],
-[[194]],
-[[195]],
-[[196]],
-[[197]],
-[[198]],
-[[199]],
-[[200]],
-[[201]],
-[[202]],
-[[203]],
-[[204]],
-[[205]],
-[[206]],
-[[207]],
-[[208]],
-[[209]],
-[[210]],
-[[211]],
-[[212]],
-[[213]],
-[[214]],
-[[215]],
-[[216]],
-[[217]],
-[[218]],
-[[219]],
-[[220]],
-[[221]],
-[[222]],
-[[223]],
-[[224]],
-[[225]],
-[[226]],
-[[227]],
-[[228]],
-[[229]],
-[[230]],
-[[231]],
-[[232]],
-[[233]],
-[[234]],
-[[235]],
-[[236]],
-[[237]],
-[[238]],
-[[239]],
-[[240]],
-[[241]],
-[[242]],
-[[243]],
-[[244]],
-[[245]],
-[[246]],
-[[247]],
-[[248]],
-[[249]],
-[[250]],
-[[251]],
-[[252]],
-[[253]],
-[[254]],
-[[255]],
-[[256]],
-[[257]],
-[[258]],
-[[259]],
-[[260]],
-[[261]],
-[[262]],
-[[263]],
-[[264]],
-[[265]],
-[[266]],
-[[267]],
-[[268]],
-[[269]],
-[[270]],
-[[271]],
-[[272]],
-[[273]],
-[[274]],
-[[275]],
-[[276]],
-[[277]],
-[[278]],
-[[279]],
-[[280]],
-[[281]],
-[[282]],
-[[283]],
-[[284]],
-[[285]],
-[[286]],
-[[287]],
-[[288]],
-[[289]],
-[[290]],
-[[291]],
-[[292]],
-[[293]],
-[[294]],
-[[295]],
-[[296]],
-[[297]],
-[[298]],
-[[299]],
-[[300]],
-[[301]],
-[[302]],
-[[303]],
-[[304]],
-[[305]],
-[[306]],
-[[307]],
-[[308]],
-[[309]],
-[[310]],
-[[311]],
-[[312]],
-[[313]],
-[[314]],
-[[315]],
-[[316]],
-[[317]],
-[[318]],
-[[319]],
-[[320]],
-[[321]],
-[[322]],
-[[323]],
-[[324]],
-[[325]],
-[[326]],
-[[327]],
-[[328]],
-[[329]],
-[[330]],
-[[331]],
-[[332]],
-[[333]],
-[[334]],
-[[335]],
-[[336]],
-[[337]],
-[[338]],
-[[339]],
-[[340]],
-[[341]],
-[[342]],
-[[343]],
-[[344]],
-[[345]],
-[[346]],
-[[347]],
-[[348]],
-[[349]],
-[[350]],
-[[351]],
-[[352]],
-[[353]],
-[[354]],
-[[355]],
-[[356]],
-[[357]],
-[[358]],
-[[359]],
-[[360]],
-[[361]],
-[[362]],
-[[363]],
-[[364]],
-[[365]],
-[[366]],
-[[367]],
-[[368]],
-[[369]],
-[[370]],
-[[371]],
-[[372]],
-[[373]],
-[[374]],
-[[375]],
-[[376]],
-[[377]],
-[[378]],
-[[379]],
-[[380]],
-[[381]],
-[[382]],
-[[383]],
-[[384]],
-[[385]],
-[[386]],
-[[387]],
-[[388]],
-[[389]],
-[[390]],
-[[391]],
-[[392]],
-[[393]],
-[[394]],
-[[395]],
-[[396]],
-[[397]],
-[[398]],
-[[399]],
-[[400]],
-[[401]],
-[[402]],
-[[403]],
-[[404]],
-[[405]],
-[[406]],
-[[407]],
-[[408]],
-[[409]],
-[[410]],
-[[411]],
-[[412]],
-[[413]],
-[[414]],
-[[415]],
-[[416]],
-[[417]],
-[[418]],
-[[419]],
-[[420]],
-[[421]],
-[[422]],
-[[423]],
-[[424]],
-[[425]],
-[[426]],
-[[427]],
-[[428]],
-[[429]],
-[[430]],
-[[431]],
-[[432]],
-[[433]],
-[[434]],
-[[435]],
-[[436]],
-[[437]],
-[[438]],
-[[439]],
-[[440]],
-[[441]],
-[[442]],
-[[443]],
-[[444]],
-[[445]],
-[[446]],
-[[447]],
-[[448]],
-[[449]],
-[[450]],
-[[451]],
-[[452]],
-[[453]],
-[[454]],
-[[455]],
-[[456]],
-[[457]],
-[[458]],
-[[459]],
-[[460]],
-[[461]],
-[[462]],
-[[463]],
-[[464]],
-[[465]],
-[[466]],
-[[467]],
-[[468]],
-[[469]],
-[[470]],
-[[471]],
-[[472]],
-[[473]],
-[[474]],
-[[475]],
-[[476]],
-[[477]],
-[[478]],
-[[479]],
-[[480]],
-[[481]],
-[[482]],
-[[483]],
-[[484]],
-[[485]],
-[[486]],
-[[487]],
-[[488]],
-[[489]],
-[[490]],
-[[491]],
-[[492]],
-[[493]],
-[[494]],
-[[495]],
-[[496]],
-[[497]],
-[[498]],
-[[499]],
-[[500]],
-[[501]],
-[[502]],
-[[503]],
-[[504]],
-[[505]],
-[[506]],
-[[507]],
-[[508]],
-[[509]],
-[[510]],
-[[511]],
-[[512]],
-[[513]],
-[[514]],
-[[515]],
-[[516]],
-[[517]],
-[[518]],
-[[519]],
-[[520]],
-[[521]],
-[[522]],
-[[523]],
-[[524]],
-[[525]],
-[[526]],
-[[527]],
-[[528]],
-[[529]],
-[[530]],
-[[531]],
-[[532]],
-[[533]],
-[[534]],
-[[535]],
-[[536]],
-[[537]],
-[[538]],
-[[539]],
-[[540]],
-[[541]],
-[[542]],
-[[543]],
-[[544]],
-[[545]],
-[[546]],
-[[547]],
-[[548]],
-[[549]],
-[[550]],
-[[551]],
-[[552]],
-[[553]],
-[[554]],
-[[555]],
-[[556]],
-[[557]],
-[[558]],
-[[559]],
-[[560]],
-[[561]],
-[[562]],
-[[563]],
-[[564]],
-[[565]],
-[[566]],
-[[567]],
-[[568]],
-[[569]],
-[[570]],
-[[571]],
-[[572]],
-[[573]],
-[[574]],
-[[575]],
-[[576]],
-[[577]],
-[[578]],
-[[579]],
-[[580]],
-[[581]],
-[[582]],
-[[583]],
-[[584]],
-[[585]],
-[[586]],
-[[587]],
-[[588]],
-[[589]],
-[[590]],
-[[591]],
-[[592]],
-[[593]],
-[[594]],
-[[595]],
-[[596]],
-[[597]],
-[[598]],
-[[599]],
-[[600]],
-[[601]],
-[[602]],
-[[603]],
-[[604]],
-[[605]],
-[[606]],
-[[607]],
-[[608]],
-[[609]],
-[[610]],
-[[611]],
-[[612]],
-[[613]],
-[[614]],
-[[615]],
-[[616]],
-[[617]],
-[[618]],
-[[619]],
-[[620]],
-[[621]],
-[[622]],
-[[623]],
-[[624]],
-[[625]],
-[[626]],
-[[627]],
-[[628]],
-[[629]],
-[[630]],
-[[631]],
-[[632]],
-[[633]],
-[[634]],
-[[635]],
-[[636]],
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-[[9897]],
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-[[9902]],
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-[[9978]],
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-[[9980]],
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-[[9982]],
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-[[9984]],
-[[9985]],
-[[9986]],
-[[9987]],
-[[9988]],
-[[9989]],
-[[9990]],
-[[9991]],
-[[9992]],
-[[9993]],
-[[9994]],
-[[9995]],
-[[9996]],
-[[9997]],
-[[9998]],
-[[9999]],
-];
-
-confuse(x) {
-  try { throw x; } catch (e) { return e; }
-}
-
-main() {
-  if (!identical(confuse(list1), confuse(list2))) {
-    throw new Exception("list1 !== list2");
-  }
-}
diff --git a/tests/language_2/canonicalize/hashing_shallow_collision_instance_2_test.dart b/tests/language_2/canonicalize/hashing_shallow_collision_instance_2_test.dart
deleted file mode 100644
index 73f492244b1..00000000000
--- a/tests/language_2/canonicalize/hashing_shallow_collision_instance_2_test.dart
+++ /dev/null
@@ -1,20036 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// If canonicalization hashes with only a field's cid, this will exhibit
-// quadratic time.
-
-class Box {
-  final Object a;
-  final Object b;
-  const Box(this.a, this.b);
-}
-
-// 10,000 elements.
-const list1 = [
-  Box(0, 0),
-  Box(1, 1),
-  Box(2, 2),
-  Box(3, 3),
-  Box(4, 4),
-  Box(5, 5),
-  Box(6, 6),
-  Box(7, 7),
-  Box(8, 8),
-  Box(9, 9),
-  Box(10, 10),
-  Box(11, 11),
-  Box(12, 12),
-  Box(13, 13),
-  Box(14, 14),
-  Box(15, 15),
-  Box(16, 16),
-  Box(17, 17),
-  Box(18, 18),
-  Box(19, 19),
-  Box(20, 20),
-  Box(21, 21),
-  Box(22, 22),
-  Box(23, 23),
-  Box(24, 24),
-  Box(25, 25),
-  Box(26, 26),
-  Box(27, 27),
-  Box(28, 28),
-  Box(29, 29),
-  Box(30, 30),
-  Box(31, 31),
-  Box(32, 32),
-  Box(33, 33),
-  Box(34, 34),
-  Box(35, 35),
-  Box(36, 36),
-  Box(37, 37),
-  Box(38, 38),
-  Box(39, 39),
-  Box(40, 40),
-  Box(41, 41),
-  Box(42, 42),
-  Box(43, 43),
-  Box(44, 44),
-  Box(45, 45),
-  Box(46, 46),
-  Box(47, 47),
-  Box(48, 48),
-  Box(49, 49),
-  Box(50, 50),
-  Box(51, 51),
-  Box(52, 52),
-  Box(53, 53),
-  Box(54, 54),
-  Box(55, 55),
-  Box(56, 56),
-  Box(57, 57),
-  Box(58, 58),
-  Box(59, 59),
-  Box(60, 60),
-  Box(61, 61),
-  Box(62, 62),
-  Box(63, 63),
-  Box(64, 64),
-  Box(65, 65),
-  Box(66, 66),
-  Box(67, 67),
-  Box(68, 68),
-  Box(69, 69),
-  Box(70, 70),
-  Box(71, 71),
-  Box(72, 72),
-  Box(73, 73),
-  Box(74, 74),
-  Box(75, 75),
-  Box(76, 76),
-  Box(77, 77),
-  Box(78, 78),
-  Box(79, 79),
-  Box(80, 80),
-  Box(81, 81),
-  Box(82, 82),
-  Box(83, 83),
-  Box(84, 84),
-  Box(85, 85),
-  Box(86, 86),
-  Box(87, 87),
-  Box(88, 88),
-  Box(89, 89),
-  Box(90, 90),
-  Box(91, 91),
-  Box(92, 92),
-  Box(93, 93),
-  Box(94, 94),
-  Box(95, 95),
-  Box(96, 96),
-  Box(97, 97),
-  Box(98, 98),
-  Box(99, 99),
-  Box(100, 100),
-  Box(101, 101),
-  Box(102, 102),
-  Box(103, 103),
-  Box(104, 104),
-  Box(105, 105),
-  Box(106, 106),
-  Box(107, 107),
-  Box(108, 108),
-  Box(109, 109),
-  Box(110, 110),
-  Box(111, 111),
-  Box(112, 112),
-  Box(113, 113),
-  Box(114, 114),
-  Box(115, 115),
-  Box(116, 116),
-  Box(117, 117),
-  Box(118, 118),
-  Box(119, 119),
-  Box(120, 120),
-  Box(121, 121),
-  Box(122, 122),
-  Box(123, 123),
-  Box(124, 124),
-  Box(125, 125),
-  Box(126, 126),
-  Box(127, 127),
-  Box(128, 128),
-  Box(129, 129),
-  Box(130, 130),
-  Box(131, 131),
-  Box(132, 132),
-  Box(133, 133),
-  Box(134, 134),
-  Box(135, 135),
-  Box(136, 136),
-  Box(137, 137),
-  Box(138, 138),
-  Box(139, 139),
-  Box(140, 140),
-  Box(141, 141),
-  Box(142, 142),
-  Box(143, 143),
-  Box(144, 144),
-  Box(145, 145),
-  Box(146, 146),
-  Box(147, 147),
-  Box(148, 148),
-  Box(149, 149),
-  Box(150, 150),
-  Box(151, 151),
-  Box(152, 152),
-  Box(153, 153),
-  Box(154, 154),
-  Box(155, 155),
-  Box(156, 156),
-  Box(157, 157),
-  Box(158, 158),
-  Box(159, 159),
-  Box(160, 160),
-  Box(161, 161),
-  Box(162, 162),
-  Box(163, 163),
-  Box(164, 164),
-  Box(165, 165),
-  Box(166, 166),
-  Box(167, 167),
-  Box(168, 168),
-  Box(169, 169),
-  Box(170, 170),
-  Box(171, 171),
-  Box(172, 172),
-  Box(173, 173),
-  Box(174, 174),
-  Box(175, 175),
-  Box(176, 176),
-  Box(177, 177),
-  Box(178, 178),
-  Box(179, 179),
-  Box(180, 180),
-  Box(181, 181),
-  Box(182, 182),
-  Box(183, 183),
-  Box(184, 184),
-  Box(185, 185),
-  Box(186, 186),
-  Box(187, 187),
-  Box(188, 188),
-  Box(189, 189),
-  Box(190, 190),
-  Box(191, 191),
-  Box(192, 192),
-  Box(193, 193),
-  Box(194, 194),
-  Box(195, 195),
-  Box(196, 196),
-  Box(197, 197),
-  Box(198, 198),
-  Box(199, 199),
-  Box(200, 200),
-  Box(201, 201),
-  Box(202, 202),
-  Box(203, 203),
-  Box(204, 204),
-  Box(205, 205),
-  Box(206, 206),
-  Box(207, 207),
-  Box(208, 208),
-  Box(209, 209),
-  Box(210, 210),
-  Box(211, 211),
-  Box(212, 212),
-  Box(213, 213),
-  Box(214, 214),
-  Box(215, 215),
-  Box(216, 216),
-  Box(217, 217),
-  Box(218, 218),
-  Box(219, 219),
-  Box(220, 220),
-  Box(221, 221),
-  Box(222, 222),
-  Box(223, 223),
-  Box(224, 224),
-  Box(225, 225),
-  Box(226, 226),
-  Box(227, 227),
-  Box(228, 228),
-  Box(229, 229),
-  Box(230, 230),
-  Box(231, 231),
-  Box(232, 232),
-  Box(233, 233),
-  Box(234, 234),
-  Box(235, 235),
-  Box(236, 236),
-  Box(237, 237),
-  Box(238, 238),
-  Box(239, 239),
-  Box(240, 240),
-  Box(241, 241),
-  Box(242, 242),
-  Box(243, 243),
-  Box(244, 244),
-  Box(245, 245),
-  Box(246, 246),
-  Box(247, 247),
-  Box(248, 248),
-  Box(249, 249),
-  Box(250, 250),
-  Box(251, 251),
-  Box(252, 252),
-  Box(253, 253),
-  Box(254, 254),
-  Box(255, 255),
-  Box(256, 256),
-  Box(257, 257),
-  Box(258, 258),
-  Box(259, 259),
-  Box(260, 260),
-  Box(261, 261),
-  Box(262, 262),
-  Box(263, 263),
-  Box(264, 264),
-  Box(265, 265),
-  Box(266, 266),
-  Box(267, 267),
-  Box(268, 268),
-  Box(269, 269),
-  Box(270, 270),
-  Box(271, 271),
-  Box(272, 272),
-  Box(273, 273),
-  Box(274, 274),
-  Box(275, 275),
-  Box(276, 276),
-  Box(277, 277),
-  Box(278, 278),
-  Box(279, 279),
-  Box(280, 280),
-  Box(281, 281),
-  Box(282, 282),
-  Box(283, 283),
-  Box(284, 284),
-  Box(285, 285),
-  Box(286, 286),
-  Box(287, 287),
-  Box(288, 288),
-  Box(289, 289),
-  Box(290, 290),
-  Box(291, 291),
-  Box(292, 292),
-  Box(293, 293),
-  Box(294, 294),
-  Box(295, 295),
-  Box(296, 296),
-  Box(297, 297),
-  Box(298, 298),
-  Box(299, 299),
-  Box(300, 300),
-  Box(301, 301),
-  Box(302, 302),
-  Box(303, 303),
-  Box(304, 304),
-  Box(305, 305),
-  Box(306, 306),
-  Box(307, 307),
-  Box(308, 308),
-  Box(309, 309),
-  Box(310, 310),
-  Box(311, 311),
-  Box(312, 312),
-  Box(313, 313),
-  Box(314, 314),
-  Box(315, 315),
-  Box(316, 316),
-  Box(317, 317),
-  Box(318, 318),
-  Box(319, 319),
-  Box(320, 320),
-  Box(321, 321),
-  Box(322, 322),
-  Box(323, 323),
-  Box(324, 324),
-  Box(325, 325),
-  Box(326, 326),
-  Box(327, 327),
-  Box(328, 328),
-  Box(329, 329),
-  Box(330, 330),
-  Box(331, 331),
-  Box(332, 332),
-  Box(333, 333),
-  Box(334, 334),
-  Box(335, 335),
-  Box(336, 336),
-  Box(337, 337),
-  Box(338, 338),
-  Box(339, 339),
-  Box(340, 340),
-  Box(341, 341),
-  Box(342, 342),
-  Box(343, 343),
-  Box(344, 344),
-  Box(345, 345),
-  Box(346, 346),
-  Box(347, 347),
-  Box(348, 348),
-  Box(349, 349),
-  Box(350, 350),
-  Box(351, 351),
-  Box(352, 352),
-  Box(353, 353),
-  Box(354, 354),
-  Box(355, 355),
-  Box(356, 356),
-  Box(357, 357),
-  Box(358, 358),
-  Box(359, 359),
-  Box(360, 360),
-  Box(361, 361),
-  Box(362, 362),
-  Box(363, 363),
-  Box(364, 364),
-  Box(365, 365),
-  Box(366, 366),
-  Box(367, 367),
-  Box(368, 368),
-  Box(369, 369),
-  Box(370, 370),
-  Box(371, 371),
-  Box(372, 372),
-  Box(373, 373),
-  Box(374, 374),
-  Box(375, 375),
-  Box(376, 376),
-  Box(377, 377),
-  Box(378, 378),
-  Box(379, 379),
-  Box(380, 380),
-  Box(381, 381),
-  Box(382, 382),
-  Box(383, 383),
-  Box(384, 384),
-  Box(385, 385),
-  Box(386, 386),
-  Box(387, 387),
-  Box(388, 388),
-  Box(389, 389),
-  Box(390, 390),
-  Box(391, 391),
-  Box(392, 392),
-  Box(393, 393),
-  Box(394, 394),
-  Box(395, 395),
-  Box(396, 396),
-  Box(397, 397),
-  Box(398, 398),
-  Box(399, 399),
-  Box(400, 400),
-  Box(401, 401),
-  Box(402, 402),
-  Box(403, 403),
-  Box(404, 404),
-  Box(405, 405),
-  Box(406, 406),
-  Box(407, 407),
-  Box(408, 408),
-  Box(409, 409),
-  Box(410, 410),
-  Box(411, 411),
-  Box(412, 412),
-  Box(413, 413),
-  Box(414, 414),
-  Box(415, 415),
-  Box(416, 416),
-  Box(417, 417),
-  Box(418, 418),
-  Box(419, 419),
-  Box(420, 420),
-  Box(421, 421),
-  Box(422, 422),
-  Box(423, 423),
-  Box(424, 424),
-  Box(425, 425),
-  Box(426, 426),
-  Box(427, 427),
-  Box(428, 428),
-  Box(429, 429),
-  Box(430, 430),
-  Box(431, 431),
-  Box(432, 432),
-  Box(433, 433),
-  Box(434, 434),
-  Box(435, 435),
-  Box(436, 436),
-  Box(437, 437),
-  Box(438, 438),
-  Box(439, 439),
-  Box(440, 440),
-  Box(441, 441),
-  Box(442, 442),
-  Box(443, 443),
-  Box(444, 444),
-  Box(445, 445),
-  Box(446, 446),
-  Box(447, 447),
-  Box(448, 448),
-  Box(449, 449),
-  Box(450, 450),
-  Box(451, 451),
-  Box(452, 452),
-  Box(453, 453),
-  Box(454, 454),
-  Box(455, 455),
-  Box(456, 456),
-  Box(457, 457),
-  Box(458, 458),
-  Box(459, 459),
-  Box(460, 460),
-  Box(461, 461),
-  Box(462, 462),
-  Box(463, 463),
-  Box(464, 464),
-  Box(465, 465),
-  Box(466, 466),
-  Box(467, 467),
-  Box(468, 468),
-  Box(469, 469),
-  Box(470, 470),
-  Box(471, 471),
-  Box(472, 472),
-  Box(473, 473),
-  Box(474, 474),
-  Box(475, 475),
-  Box(476, 476),
-  Box(477, 477),
-  Box(478, 478),
-  Box(479, 479),
-  Box(480, 480),
-  Box(481, 481),
-  Box(482, 482),
-  Box(483, 483),
-  Box(484, 484),
-  Box(485, 485),
-  Box(486, 486),
-  Box(487, 487),
-  Box(488, 488),
-  Box(489, 489),
-  Box(490, 490),
-  Box(491, 491),
-  Box(492, 492),
-  Box(493, 493),
-  Box(494, 494),
-  Box(495, 495),
-  Box(496, 496),
-  Box(497, 497),
-  Box(498, 498),
-  Box(499, 499),
-  Box(500, 500),
-  Box(501, 501),
-  Box(502, 502),
-  Box(503, 503),
-  Box(504, 504),
-  Box(505, 505),
-  Box(506, 506),
-  Box(507, 507),
-  Box(508, 508),
-  Box(509, 509),
-  Box(510, 510),
-  Box(511, 511),
-  Box(512, 512),
-  Box(513, 513),
-  Box(514, 514),
-  Box(515, 515),
-  Box(516, 516),
-  Box(517, 517),
-  Box(518, 518),
-  Box(519, 519),
-  Box(520, 520),
-  Box(521, 521),
-  Box(522, 522),
-  Box(523, 523),
-  Box(524, 524),
-  Box(525, 525),
-  Box(526, 526),
-  Box(527, 527),
-  Box(528, 528),
-  Box(529, 529),
-  Box(530, 530),
-  Box(531, 531),
-  Box(532, 532),
-  Box(533, 533),
-  Box(534, 534),
-  Box(535, 535),
-  Box(536, 536),
-  Box(537, 537),
-  Box(538, 538),
-  Box(539, 539),
-  Box(540, 540),
-  Box(541, 541),
-  Box(542, 542),
-  Box(543, 543),
-  Box(544, 544),
-  Box(545, 545),
-  Box(546, 546),
-  Box(547, 547),
-  Box(548, 548),
-  Box(549, 549),
-  Box(550, 550),
-  Box(551, 551),
-  Box(552, 552),
-  Box(553, 553),
-  Box(554, 554),
-  Box(555, 555),
-  Box(556, 556),
-  Box(557, 557),
-  Box(558, 558),
-  Box(559, 559),
-  Box(560, 560),
-  Box(561, 561),
-  Box(562, 562),
-  Box(563, 563),
-  Box(564, 564),
-  Box(565, 565),
-  Box(566, 566),
-  Box(567, 567),
-  Box(568, 568),
-  Box(569, 569),
-  Box(570, 570),
-  Box(571, 571),
-  Box(572, 572),
-  Box(573, 573),
-  Box(574, 574),
-  Box(575, 575),
-  Box(576, 576),
-  Box(577, 577),
-  Box(578, 578),
-  Box(579, 579),
-  Box(580, 580),
-  Box(581, 581),
-  Box(582, 582),
-  Box(583, 583),
-  Box(584, 584),
-  Box(585, 585),
-  Box(586, 586),
-  Box(587, 587),
-  Box(588, 588),
-  Box(589, 589),
-  Box(590, 590),
-  Box(591, 591),
-  Box(592, 592),
-  Box(593, 593),
-  Box(594, 594),
-  Box(595, 595),
-  Box(596, 596),
-  Box(597, 597),
-  Box(598, 598),
-  Box(599, 599),
-  Box(600, 600),
-  Box(601, 601),
-  Box(602, 602),
-  Box(603, 603),
-  Box(604, 604),
-  Box(605, 605),
-  Box(606, 606),
-  Box(607, 607),
-  Box(608, 608),
-  Box(609, 609),
-  Box(610, 610),
-  Box(611, 611),
-  Box(612, 612),
-  Box(613, 613),
-  Box(614, 614),
-  Box(615, 615),
-  Box(616, 616),
-  Box(617, 617),
-  Box(618, 618),
-  Box(619, 619),
-  Box(620, 620),
-  Box(621, 621),
-  Box(622, 622),
-  Box(623, 623),
-  Box(624, 624),
-  Box(625, 625),
-  Box(626, 626),
-  Box(627, 627),
-  Box(628, 628),
-  Box(629, 629),
-  Box(630, 630),
-  Box(631, 631),
-  Box(632, 632),
-  Box(633, 633),
-  Box(634, 634),
-  Box(635, 635),
-  Box(636, 636),
-  Box(637, 637),
-  Box(638, 638),
-  Box(639, 639),
-  Box(640, 640),
-  Box(641, 641),
-  Box(642, 642),
-  Box(643, 643),
-  Box(644, 644),
-  Box(645, 645),
-  Box(646, 646),
-  Box(647, 647),
-  Box(648, 648),
-  Box(649, 649),
-  Box(650, 650),
-  Box(651, 651),
-  Box(652, 652),
-  Box(653, 653),
-  Box(654, 654),
-  Box(655, 655),
-  Box(656, 656),
-  Box(657, 657),
-  Box(658, 658),
-  Box(659, 659),
-  Box(660, 660),
-  Box(661, 661),
-  Box(662, 662),
-  Box(663, 663),
-  Box(664, 664),
-  Box(665, 665),
-  Box(666, 666),
-  Box(667, 667),
-  Box(668, 668),
-  Box(669, 669),
-  Box(670, 670),
-  Box(671, 671),
-  Box(672, 672),
-  Box(673, 673),
-  Box(674, 674),
-  Box(675, 675),
-  Box(676, 676),
-  Box(677, 677),
-  Box(678, 678),
-  Box(679, 679),
-  Box(680, 680),
-  Box(681, 681),
-  Box(682, 682),
-  Box(683, 683),
-  Box(684, 684),
-  Box(685, 685),
-  Box(686, 686),
-  Box(687, 687),
-  Box(688, 688),
-  Box(689, 689),
-  Box(690, 690),
-  Box(691, 691),
-  Box(692, 692),
-  Box(693, 693),
-  Box(694, 694),
-  Box(695, 695),
-  Box(696, 696),
-  Box(697, 697),
-  Box(698, 698),
-  Box(699, 699),
-  Box(700, 700),
-  Box(701, 701),
-  Box(702, 702),
-  Box(703, 703),
-  Box(704, 704),
-  Box(705, 705),
-  Box(706, 706),
-  Box(707, 707),
-  Box(708, 708),
-  Box(709, 709),
-  Box(710, 710),
-  Box(711, 711),
-  Box(712, 712),
-  Box(713, 713),
-  Box(714, 714),
-  Box(715, 715),
-  Box(716, 716),
-  Box(717, 717),
-  Box(718, 718),
-  Box(719, 719),
-  Box(720, 720),
-  Box(721, 721),
-  Box(722, 722),
-  Box(723, 723),
-  Box(724, 724),
-  Box(725, 725),
-  Box(726, 726),
-  Box(727, 727),
-  Box(728, 728),
-  Box(729, 729),
-  Box(730, 730),
-  Box(731, 731),
-  Box(732, 732),
-  Box(733, 733),
-  Box(734, 734),
-  Box(735, 735),
-  Box(736, 736),
-  Box(737, 737),
-  Box(738, 738),
-  Box(739, 739),
-  Box(740, 740),
-  Box(741, 741),
-  Box(742, 742),
-  Box(743, 743),
-  Box(744, 744),
-  Box(745, 745),
-  Box(746, 746),
-  Box(747, 747),
-  Box(748, 748),
-  Box(749, 749),
-  Box(750, 750),
-  Box(751, 751),
-  Box(752, 752),
-  Box(753, 753),
-  Box(754, 754),
-  Box(755, 755),
-  Box(756, 756),
-  Box(757, 757),
-  Box(758, 758),
-  Box(759, 759),
-  Box(760, 760),
-  Box(761, 761),
-  Box(762, 762),
-  Box(763, 763),
-  Box(764, 764),
-  Box(765, 765),
-  Box(766, 766),
-  Box(767, 767),
-  Box(768, 768),
-  Box(769, 769),
-  Box(770, 770),
-  Box(771, 771),
-  Box(772, 772),
-  Box(773, 773),
-  Box(774, 774),
-  Box(775, 775),
-  Box(776, 776),
-  Box(777, 777),
-  Box(778, 778),
-  Box(779, 779),
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-  Box(9659, 9659),
-  Box(9660, 9660),
-  Box(9661, 9661),
-  Box(9662, 9662),
-  Box(9663, 9663),
-  Box(9664, 9664),
-  Box(9665, 9665),
-  Box(9666, 9666),
-  Box(9667, 9667),
-  Box(9668, 9668),
-  Box(9669, 9669),
-  Box(9670, 9670),
-  Box(9671, 9671),
-  Box(9672, 9672),
-  Box(9673, 9673),
-  Box(9674, 9674),
-  Box(9675, 9675),
-  Box(9676, 9676),
-  Box(9677, 9677),
-  Box(9678, 9678),
-  Box(9679, 9679),
-  Box(9680, 9680),
-  Box(9681, 9681),
-  Box(9682, 9682),
-  Box(9683, 9683),
-  Box(9684, 9684),
-  Box(9685, 9685),
-  Box(9686, 9686),
-  Box(9687, 9687),
-  Box(9688, 9688),
-  Box(9689, 9689),
-  Box(9690, 9690),
-  Box(9691, 9691),
-  Box(9692, 9692),
-  Box(9693, 9693),
-  Box(9694, 9694),
-  Box(9695, 9695),
-  Box(9696, 9696),
-  Box(9697, 9697),
-  Box(9698, 9698),
-  Box(9699, 9699),
-  Box(9700, 9700),
-  Box(9701, 9701),
-  Box(9702, 9702),
-  Box(9703, 9703),
-  Box(9704, 9704),
-  Box(9705, 9705),
-  Box(9706, 9706),
-  Box(9707, 9707),
-  Box(9708, 9708),
-  Box(9709, 9709),
-  Box(9710, 9710),
-  Box(9711, 9711),
-  Box(9712, 9712),
-  Box(9713, 9713),
-  Box(9714, 9714),
-  Box(9715, 9715),
-  Box(9716, 9716),
-  Box(9717, 9717),
-  Box(9718, 9718),
-  Box(9719, 9719),
-  Box(9720, 9720),
-  Box(9721, 9721),
-  Box(9722, 9722),
-  Box(9723, 9723),
-  Box(9724, 9724),
-  Box(9725, 9725),
-  Box(9726, 9726),
-  Box(9727, 9727),
-  Box(9728, 9728),
-  Box(9729, 9729),
-  Box(9730, 9730),
-  Box(9731, 9731),
-  Box(9732, 9732),
-  Box(9733, 9733),
-  Box(9734, 9734),
-  Box(9735, 9735),
-  Box(9736, 9736),
-  Box(9737, 9737),
-  Box(9738, 9738),
-  Box(9739, 9739),
-  Box(9740, 9740),
-  Box(9741, 9741),
-  Box(9742, 9742),
-  Box(9743, 9743),
-  Box(9744, 9744),
-  Box(9745, 9745),
-  Box(9746, 9746),
-  Box(9747, 9747),
-  Box(9748, 9748),
-  Box(9749, 9749),
-  Box(9750, 9750),
-  Box(9751, 9751),
-  Box(9752, 9752),
-  Box(9753, 9753),
-  Box(9754, 9754),
-  Box(9755, 9755),
-  Box(9756, 9756),
-  Box(9757, 9757),
-  Box(9758, 9758),
-  Box(9759, 9759),
-  Box(9760, 9760),
-  Box(9761, 9761),
-  Box(9762, 9762),
-  Box(9763, 9763),
-  Box(9764, 9764),
-  Box(9765, 9765),
-  Box(9766, 9766),
-  Box(9767, 9767),
-  Box(9768, 9768),
-  Box(9769, 9769),
-  Box(9770, 9770),
-  Box(9771, 9771),
-  Box(9772, 9772),
-  Box(9773, 9773),
-  Box(9774, 9774),
-  Box(9775, 9775),
-  Box(9776, 9776),
-  Box(9777, 9777),
-  Box(9778, 9778),
-  Box(9779, 9779),
-  Box(9780, 9780),
-  Box(9781, 9781),
-  Box(9782, 9782),
-  Box(9783, 9783),
-  Box(9784, 9784),
-  Box(9785, 9785),
-  Box(9786, 9786),
-  Box(9787, 9787),
-  Box(9788, 9788),
-  Box(9789, 9789),
-  Box(9790, 9790),
-  Box(9791, 9791),
-  Box(9792, 9792),
-  Box(9793, 9793),
-  Box(9794, 9794),
-  Box(9795, 9795),
-  Box(9796, 9796),
-  Box(9797, 9797),
-  Box(9798, 9798),
-  Box(9799, 9799),
-  Box(9800, 9800),
-  Box(9801, 9801),
-  Box(9802, 9802),
-  Box(9803, 9803),
-  Box(9804, 9804),
-  Box(9805, 9805),
-  Box(9806, 9806),
-  Box(9807, 9807),
-  Box(9808, 9808),
-  Box(9809, 9809),
-  Box(9810, 9810),
-  Box(9811, 9811),
-  Box(9812, 9812),
-  Box(9813, 9813),
-  Box(9814, 9814),
-  Box(9815, 9815),
-  Box(9816, 9816),
-  Box(9817, 9817),
-  Box(9818, 9818),
-  Box(9819, 9819),
-  Box(9820, 9820),
-  Box(9821, 9821),
-  Box(9822, 9822),
-  Box(9823, 9823),
-  Box(9824, 9824),
-  Box(9825, 9825),
-  Box(9826, 9826),
-  Box(9827, 9827),
-  Box(9828, 9828),
-  Box(9829, 9829),
-  Box(9830, 9830),
-  Box(9831, 9831),
-  Box(9832, 9832),
-  Box(9833, 9833),
-  Box(9834, 9834),
-  Box(9835, 9835),
-  Box(9836, 9836),
-  Box(9837, 9837),
-  Box(9838, 9838),
-  Box(9839, 9839),
-  Box(9840, 9840),
-  Box(9841, 9841),
-  Box(9842, 9842),
-  Box(9843, 9843),
-  Box(9844, 9844),
-  Box(9845, 9845),
-  Box(9846, 9846),
-  Box(9847, 9847),
-  Box(9848, 9848),
-  Box(9849, 9849),
-  Box(9850, 9850),
-  Box(9851, 9851),
-  Box(9852, 9852),
-  Box(9853, 9853),
-  Box(9854, 9854),
-  Box(9855, 9855),
-  Box(9856, 9856),
-  Box(9857, 9857),
-  Box(9858, 9858),
-  Box(9859, 9859),
-  Box(9860, 9860),
-  Box(9861, 9861),
-  Box(9862, 9862),
-  Box(9863, 9863),
-  Box(9864, 9864),
-  Box(9865, 9865),
-  Box(9866, 9866),
-  Box(9867, 9867),
-  Box(9868, 9868),
-  Box(9869, 9869),
-  Box(9870, 9870),
-  Box(9871, 9871),
-  Box(9872, 9872),
-  Box(9873, 9873),
-  Box(9874, 9874),
-  Box(9875, 9875),
-  Box(9876, 9876),
-  Box(9877, 9877),
-  Box(9878, 9878),
-  Box(9879, 9879),
-  Box(9880, 9880),
-  Box(9881, 9881),
-  Box(9882, 9882),
-  Box(9883, 9883),
-  Box(9884, 9884),
-  Box(9885, 9885),
-  Box(9886, 9886),
-  Box(9887, 9887),
-  Box(9888, 9888),
-  Box(9889, 9889),
-  Box(9890, 9890),
-  Box(9891, 9891),
-  Box(9892, 9892),
-  Box(9893, 9893),
-  Box(9894, 9894),
-  Box(9895, 9895),
-  Box(9896, 9896),
-  Box(9897, 9897),
-  Box(9898, 9898),
-  Box(9899, 9899),
-  Box(9900, 9900),
-  Box(9901, 9901),
-  Box(9902, 9902),
-  Box(9903, 9903),
-  Box(9904, 9904),
-  Box(9905, 9905),
-  Box(9906, 9906),
-  Box(9907, 9907),
-  Box(9908, 9908),
-  Box(9909, 9909),
-  Box(9910, 9910),
-  Box(9911, 9911),
-  Box(9912, 9912),
-  Box(9913, 9913),
-  Box(9914, 9914),
-  Box(9915, 9915),
-  Box(9916, 9916),
-  Box(9917, 9917),
-  Box(9918, 9918),
-  Box(9919, 9919),
-  Box(9920, 9920),
-  Box(9921, 9921),
-  Box(9922, 9922),
-  Box(9923, 9923),
-  Box(9924, 9924),
-  Box(9925, 9925),
-  Box(9926, 9926),
-  Box(9927, 9927),
-  Box(9928, 9928),
-  Box(9929, 9929),
-  Box(9930, 9930),
-  Box(9931, 9931),
-  Box(9932, 9932),
-  Box(9933, 9933),
-  Box(9934, 9934),
-  Box(9935, 9935),
-  Box(9936, 9936),
-  Box(9937, 9937),
-  Box(9938, 9938),
-  Box(9939, 9939),
-  Box(9940, 9940),
-  Box(9941, 9941),
-  Box(9942, 9942),
-  Box(9943, 9943),
-  Box(9944, 9944),
-  Box(9945, 9945),
-  Box(9946, 9946),
-  Box(9947, 9947),
-  Box(9948, 9948),
-  Box(9949, 9949),
-  Box(9950, 9950),
-  Box(9951, 9951),
-  Box(9952, 9952),
-  Box(9953, 9953),
-  Box(9954, 9954),
-  Box(9955, 9955),
-  Box(9956, 9956),
-  Box(9957, 9957),
-  Box(9958, 9958),
-  Box(9959, 9959),
-  Box(9960, 9960),
-  Box(9961, 9961),
-  Box(9962, 9962),
-  Box(9963, 9963),
-  Box(9964, 9964),
-  Box(9965, 9965),
-  Box(9966, 9966),
-  Box(9967, 9967),
-  Box(9968, 9968),
-  Box(9969, 9969),
-  Box(9970, 9970),
-  Box(9971, 9971),
-  Box(9972, 9972),
-  Box(9973, 9973),
-  Box(9974, 9974),
-  Box(9975, 9975),
-  Box(9976, 9976),
-  Box(9977, 9977),
-  Box(9978, 9978),
-  Box(9979, 9979),
-  Box(9980, 9980),
-  Box(9981, 9981),
-  Box(9982, 9982),
-  Box(9983, 9983),
-  Box(9984, 9984),
-  Box(9985, 9985),
-  Box(9986, 9986),
-  Box(9987, 9987),
-  Box(9988, 9988),
-  Box(9989, 9989),
-  Box(9990, 9990),
-  Box(9991, 9991),
-  Box(9992, 9992),
-  Box(9993, 9993),
-  Box(9994, 9994),
-  Box(9995, 9995),
-  Box(9996, 9996),
-  Box(9997, 9997),
-  Box(9998, 9998),
-  Box(9999, 9999),
-];
-
-// 10,000 elements.
-const list2 = [
-  Box(0, 0),
-  Box(1, 1),
-  Box(2, 2),
-  Box(3, 3),
-  Box(4, 4),
-  Box(5, 5),
-  Box(6, 6),
-  Box(7, 7),
-  Box(8, 8),
-  Box(9, 9),
-  Box(10, 10),
-  Box(11, 11),
-  Box(12, 12),
-  Box(13, 13),
-  Box(14, 14),
-  Box(15, 15),
-  Box(16, 16),
-  Box(17, 17),
-  Box(18, 18),
-  Box(19, 19),
-  Box(20, 20),
-  Box(21, 21),
-  Box(22, 22),
-  Box(23, 23),
-  Box(24, 24),
-  Box(25, 25),
-  Box(26, 26),
-  Box(27, 27),
-  Box(28, 28),
-  Box(29, 29),
-  Box(30, 30),
-  Box(31, 31),
-  Box(32, 32),
-  Box(33, 33),
-  Box(34, 34),
-  Box(35, 35),
-  Box(36, 36),
-  Box(37, 37),
-  Box(38, 38),
-  Box(39, 39),
-  Box(40, 40),
-  Box(41, 41),
-  Box(42, 42),
-  Box(43, 43),
-  Box(44, 44),
-  Box(45, 45),
-  Box(46, 46),
-  Box(47, 47),
-  Box(48, 48),
-  Box(49, 49),
-  Box(50, 50),
-  Box(51, 51),
-  Box(52, 52),
-  Box(53, 53),
-  Box(54, 54),
-  Box(55, 55),
-  Box(56, 56),
-  Box(57, 57),
-  Box(58, 58),
-  Box(59, 59),
-  Box(60, 60),
-  Box(61, 61),
-  Box(62, 62),
-  Box(63, 63),
-  Box(64, 64),
-  Box(65, 65),
-  Box(66, 66),
-  Box(67, 67),
-  Box(68, 68),
-  Box(69, 69),
-  Box(70, 70),
-  Box(71, 71),
-  Box(72, 72),
-  Box(73, 73),
-  Box(74, 74),
-  Box(75, 75),
-  Box(76, 76),
-  Box(77, 77),
-  Box(78, 78),
-  Box(79, 79),
-  Box(80, 80),
-  Box(81, 81),
-  Box(82, 82),
-  Box(83, 83),
-  Box(84, 84),
-  Box(85, 85),
-  Box(86, 86),
-  Box(87, 87),
-  Box(88, 88),
-  Box(89, 89),
-  Box(90, 90),
-  Box(91, 91),
-  Box(92, 92),
-  Box(93, 93),
-  Box(94, 94),
-  Box(95, 95),
-  Box(96, 96),
-  Box(97, 97),
-  Box(98, 98),
-  Box(99, 99),
-  Box(100, 100),
-  Box(101, 101),
-  Box(102, 102),
-  Box(103, 103),
-  Box(104, 104),
-  Box(105, 105),
-  Box(106, 106),
-  Box(107, 107),
-  Box(108, 108),
-  Box(109, 109),
-  Box(110, 110),
-  Box(111, 111),
-  Box(112, 112),
-  Box(113, 113),
-  Box(114, 114),
-  Box(115, 115),
-  Box(116, 116),
-  Box(117, 117),
-  Box(118, 118),
-  Box(119, 119),
-  Box(120, 120),
-  Box(121, 121),
-  Box(122, 122),
-  Box(123, 123),
-  Box(124, 124),
-  Box(125, 125),
-  Box(126, 126),
-  Box(127, 127),
-  Box(128, 128),
-  Box(129, 129),
-  Box(130, 130),
-  Box(131, 131),
-  Box(132, 132),
-  Box(133, 133),
-  Box(134, 134),
-  Box(135, 135),
-  Box(136, 136),
-  Box(137, 137),
-  Box(138, 138),
-  Box(139, 139),
-  Box(140, 140),
-  Box(141, 141),
-  Box(142, 142),
-  Box(143, 143),
-  Box(144, 144),
-  Box(145, 145),
-  Box(146, 146),
-  Box(147, 147),
-  Box(148, 148),
-  Box(149, 149),
-  Box(150, 150),
-  Box(151, 151),
-  Box(152, 152),
-  Box(153, 153),
-  Box(154, 154),
-  Box(155, 155),
-  Box(156, 156),
-  Box(157, 157),
-  Box(158, 158),
-  Box(159, 159),
-  Box(160, 160),
-  Box(161, 161),
-  Box(162, 162),
-  Box(163, 163),
-  Box(164, 164),
-  Box(165, 165),
-  Box(166, 166),
-  Box(167, 167),
-  Box(168, 168),
-  Box(169, 169),
-  Box(170, 170),
-  Box(171, 171),
-  Box(172, 172),
-  Box(173, 173),
-  Box(174, 174),
-  Box(175, 175),
-  Box(176, 176),
-  Box(177, 177),
-  Box(178, 178),
-  Box(179, 179),
-  Box(180, 180),
-  Box(181, 181),
-  Box(182, 182),
-  Box(183, 183),
-  Box(184, 184),
-  Box(185, 185),
-  Box(186, 186),
-  Box(187, 187),
-  Box(188, 188),
-  Box(189, 189),
-  Box(190, 190),
-  Box(191, 191),
-  Box(192, 192),
-  Box(193, 193),
-  Box(194, 194),
-  Box(195, 195),
-  Box(196, 196),
-  Box(197, 197),
-  Box(198, 198),
-  Box(199, 199),
-  Box(200, 200),
-  Box(201, 201),
-  Box(202, 202),
-  Box(203, 203),
-  Box(204, 204),
-  Box(205, 205),
-  Box(206, 206),
-  Box(207, 207),
-  Box(208, 208),
-  Box(209, 209),
-  Box(210, 210),
-  Box(211, 211),
-  Box(212, 212),
-  Box(213, 213),
-  Box(214, 214),
-  Box(215, 215),
-  Box(216, 216),
-  Box(217, 217),
-  Box(218, 218),
-  Box(219, 219),
-  Box(220, 220),
-  Box(221, 221),
-  Box(222, 222),
-  Box(223, 223),
-  Box(224, 224),
-  Box(225, 225),
-  Box(226, 226),
-  Box(227, 227),
-  Box(228, 228),
-  Box(229, 229),
-  Box(230, 230),
-  Box(231, 231),
-  Box(232, 232),
-  Box(233, 233),
-  Box(234, 234),
-  Box(235, 235),
-  Box(236, 236),
-  Box(237, 237),
-  Box(238, 238),
-  Box(239, 239),
-  Box(240, 240),
-  Box(241, 241),
-  Box(242, 242),
-  Box(243, 243),
-  Box(244, 244),
-  Box(245, 245),
-  Box(246, 246),
-  Box(247, 247),
-  Box(248, 248),
-  Box(249, 249),
-  Box(250, 250),
-  Box(251, 251),
-  Box(252, 252),
-  Box(253, 253),
-  Box(254, 254),
-  Box(255, 255),
-  Box(256, 256),
-  Box(257, 257),
-  Box(258, 258),
-  Box(259, 259),
-  Box(260, 260),
-  Box(261, 261),
-  Box(262, 262),
-  Box(263, 263),
-  Box(264, 264),
-  Box(265, 265),
-  Box(266, 266),
-  Box(267, 267),
-  Box(268, 268),
-  Box(269, 269),
-  Box(270, 270),
-  Box(271, 271),
-  Box(272, 272),
-  Box(273, 273),
-  Box(274, 274),
-  Box(275, 275),
-  Box(276, 276),
-  Box(277, 277),
-  Box(278, 278),
-  Box(279, 279),
-  Box(280, 280),
-  Box(281, 281),
-  Box(282, 282),
-  Box(283, 283),
-  Box(284, 284),
-  Box(285, 285),
-  Box(286, 286),
-  Box(287, 287),
-  Box(288, 288),
-  Box(289, 289),
-  Box(290, 290),
-  Box(291, 291),
-  Box(292, 292),
-  Box(293, 293),
-  Box(294, 294),
-  Box(295, 295),
-  Box(296, 296),
-  Box(297, 297),
-  Box(298, 298),
-  Box(299, 299),
-  Box(300, 300),
-  Box(301, 301),
-  Box(302, 302),
-  Box(303, 303),
-  Box(304, 304),
-  Box(305, 305),
-  Box(306, 306),
-  Box(307, 307),
-  Box(308, 308),
-  Box(309, 309),
-  Box(310, 310),
-  Box(311, 311),
-  Box(312, 312),
-  Box(313, 313),
-  Box(314, 314),
-  Box(315, 315),
-  Box(316, 316),
-  Box(317, 317),
-  Box(318, 318),
-  Box(319, 319),
-  Box(320, 320),
-  Box(321, 321),
-  Box(322, 322),
-  Box(323, 323),
-  Box(324, 324),
-  Box(325, 325),
-  Box(326, 326),
-  Box(327, 327),
-  Box(328, 328),
-  Box(329, 329),
-  Box(330, 330),
-  Box(331, 331),
-  Box(332, 332),
-  Box(333, 333),
-  Box(334, 334),
-  Box(335, 335),
-  Box(336, 336),
-  Box(337, 337),
-  Box(338, 338),
-  Box(339, 339),
-  Box(340, 340),
-  Box(341, 341),
-  Box(342, 342),
-  Box(343, 343),
-  Box(344, 344),
-  Box(345, 345),
-  Box(346, 346),
-  Box(347, 347),
-  Box(348, 348),
-  Box(349, 349),
-  Box(350, 350),
-  Box(351, 351),
-  Box(352, 352),
-  Box(353, 353),
-  Box(354, 354),
-  Box(355, 355),
-  Box(356, 356),
-  Box(357, 357),
-  Box(358, 358),
-  Box(359, 359),
-  Box(360, 360),
-  Box(361, 361),
-  Box(362, 362),
-  Box(363, 363),
-  Box(364, 364),
-  Box(365, 365),
-  Box(366, 366),
-  Box(367, 367),
-  Box(368, 368),
-  Box(369, 369),
-  Box(370, 370),
-  Box(371, 371),
-  Box(372, 372),
-  Box(373, 373),
-  Box(374, 374),
-  Box(375, 375),
-  Box(376, 376),
-  Box(377, 377),
-  Box(378, 378),
-  Box(379, 379),
-  Box(380, 380),
-  Box(381, 381),
-  Box(382, 382),
-  Box(383, 383),
-  Box(384, 384),
-  Box(385, 385),
-  Box(386, 386),
-  Box(387, 387),
-  Box(388, 388),
-  Box(389, 389),
-  Box(390, 390),
-  Box(391, 391),
-  Box(392, 392),
-  Box(393, 393),
-  Box(394, 394),
-  Box(395, 395),
-  Box(396, 396),
-  Box(397, 397),
-  Box(398, 398),
-  Box(399, 399),
-  Box(400, 400),
-  Box(401, 401),
-  Box(402, 402),
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-  Box(9328, 9328),
-  Box(9329, 9329),
-  Box(9330, 9330),
-  Box(9331, 9331),
-  Box(9332, 9332),
-  Box(9333, 9333),
-  Box(9334, 9334),
-  Box(9335, 9335),
-  Box(9336, 9336),
-  Box(9337, 9337),
-  Box(9338, 9338),
-  Box(9339, 9339),
-  Box(9340, 9340),
-  Box(9341, 9341),
-  Box(9342, 9342),
-  Box(9343, 9343),
-  Box(9344, 9344),
-  Box(9345, 9345),
-  Box(9346, 9346),
-  Box(9347, 9347),
-  Box(9348, 9348),
-  Box(9349, 9349),
-  Box(9350, 9350),
-  Box(9351, 9351),
-  Box(9352, 9352),
-  Box(9353, 9353),
-  Box(9354, 9354),
-  Box(9355, 9355),
-  Box(9356, 9356),
-  Box(9357, 9357),
-  Box(9358, 9358),
-  Box(9359, 9359),
-  Box(9360, 9360),
-  Box(9361, 9361),
-  Box(9362, 9362),
-  Box(9363, 9363),
-  Box(9364, 9364),
-  Box(9365, 9365),
-  Box(9366, 9366),
-  Box(9367, 9367),
-  Box(9368, 9368),
-  Box(9369, 9369),
-  Box(9370, 9370),
-  Box(9371, 9371),
-  Box(9372, 9372),
-  Box(9373, 9373),
-  Box(9374, 9374),
-  Box(9375, 9375),
-  Box(9376, 9376),
-  Box(9377, 9377),
-  Box(9378, 9378),
-  Box(9379, 9379),
-  Box(9380, 9380),
-  Box(9381, 9381),
-  Box(9382, 9382),
-  Box(9383, 9383),
-  Box(9384, 9384),
-  Box(9385, 9385),
-  Box(9386, 9386),
-  Box(9387, 9387),
-  Box(9388, 9388),
-  Box(9389, 9389),
-  Box(9390, 9390),
-  Box(9391, 9391),
-  Box(9392, 9392),
-  Box(9393, 9393),
-  Box(9394, 9394),
-  Box(9395, 9395),
-  Box(9396, 9396),
-  Box(9397, 9397),
-  Box(9398, 9398),
-  Box(9399, 9399),
-  Box(9400, 9400),
-  Box(9401, 9401),
-  Box(9402, 9402),
-  Box(9403, 9403),
-  Box(9404, 9404),
-  Box(9405, 9405),
-  Box(9406, 9406),
-  Box(9407, 9407),
-  Box(9408, 9408),
-  Box(9409, 9409),
-  Box(9410, 9410),
-  Box(9411, 9411),
-  Box(9412, 9412),
-  Box(9413, 9413),
-  Box(9414, 9414),
-  Box(9415, 9415),
-  Box(9416, 9416),
-  Box(9417, 9417),
-  Box(9418, 9418),
-  Box(9419, 9419),
-  Box(9420, 9420),
-  Box(9421, 9421),
-  Box(9422, 9422),
-  Box(9423, 9423),
-  Box(9424, 9424),
-  Box(9425, 9425),
-  Box(9426, 9426),
-  Box(9427, 9427),
-  Box(9428, 9428),
-  Box(9429, 9429),
-  Box(9430, 9430),
-  Box(9431, 9431),
-  Box(9432, 9432),
-  Box(9433, 9433),
-  Box(9434, 9434),
-  Box(9435, 9435),
-  Box(9436, 9436),
-  Box(9437, 9437),
-  Box(9438, 9438),
-  Box(9439, 9439),
-  Box(9440, 9440),
-  Box(9441, 9441),
-  Box(9442, 9442),
-  Box(9443, 9443),
-  Box(9444, 9444),
-  Box(9445, 9445),
-  Box(9446, 9446),
-  Box(9447, 9447),
-  Box(9448, 9448),
-  Box(9449, 9449),
-  Box(9450, 9450),
-  Box(9451, 9451),
-  Box(9452, 9452),
-  Box(9453, 9453),
-  Box(9454, 9454),
-  Box(9455, 9455),
-  Box(9456, 9456),
-  Box(9457, 9457),
-  Box(9458, 9458),
-  Box(9459, 9459),
-  Box(9460, 9460),
-  Box(9461, 9461),
-  Box(9462, 9462),
-  Box(9463, 9463),
-  Box(9464, 9464),
-  Box(9465, 9465),
-  Box(9466, 9466),
-  Box(9467, 9467),
-  Box(9468, 9468),
-  Box(9469, 9469),
-  Box(9470, 9470),
-  Box(9471, 9471),
-  Box(9472, 9472),
-  Box(9473, 9473),
-  Box(9474, 9474),
-  Box(9475, 9475),
-  Box(9476, 9476),
-  Box(9477, 9477),
-  Box(9478, 9478),
-  Box(9479, 9479),
-  Box(9480, 9480),
-  Box(9481, 9481),
-  Box(9482, 9482),
-  Box(9483, 9483),
-  Box(9484, 9484),
-  Box(9485, 9485),
-  Box(9486, 9486),
-  Box(9487, 9487),
-  Box(9488, 9488),
-  Box(9489, 9489),
-  Box(9490, 9490),
-  Box(9491, 9491),
-  Box(9492, 9492),
-  Box(9493, 9493),
-  Box(9494, 9494),
-  Box(9495, 9495),
-  Box(9496, 9496),
-  Box(9497, 9497),
-  Box(9498, 9498),
-  Box(9499, 9499),
-  Box(9500, 9500),
-  Box(9501, 9501),
-  Box(9502, 9502),
-  Box(9503, 9503),
-  Box(9504, 9504),
-  Box(9505, 9505),
-  Box(9506, 9506),
-  Box(9507, 9507),
-  Box(9508, 9508),
-  Box(9509, 9509),
-  Box(9510, 9510),
-  Box(9511, 9511),
-  Box(9512, 9512),
-  Box(9513, 9513),
-  Box(9514, 9514),
-  Box(9515, 9515),
-  Box(9516, 9516),
-  Box(9517, 9517),
-  Box(9518, 9518),
-  Box(9519, 9519),
-  Box(9520, 9520),
-  Box(9521, 9521),
-  Box(9522, 9522),
-  Box(9523, 9523),
-  Box(9524, 9524),
-  Box(9525, 9525),
-  Box(9526, 9526),
-  Box(9527, 9527),
-  Box(9528, 9528),
-  Box(9529, 9529),
-  Box(9530, 9530),
-  Box(9531, 9531),
-  Box(9532, 9532),
-  Box(9533, 9533),
-  Box(9534, 9534),
-  Box(9535, 9535),
-  Box(9536, 9536),
-  Box(9537, 9537),
-  Box(9538, 9538),
-  Box(9539, 9539),
-  Box(9540, 9540),
-  Box(9541, 9541),
-  Box(9542, 9542),
-  Box(9543, 9543),
-  Box(9544, 9544),
-  Box(9545, 9545),
-  Box(9546, 9546),
-  Box(9547, 9547),
-  Box(9548, 9548),
-  Box(9549, 9549),
-  Box(9550, 9550),
-  Box(9551, 9551),
-  Box(9552, 9552),
-  Box(9553, 9553),
-  Box(9554, 9554),
-  Box(9555, 9555),
-  Box(9556, 9556),
-  Box(9557, 9557),
-  Box(9558, 9558),
-  Box(9559, 9559),
-  Box(9560, 9560),
-  Box(9561, 9561),
-  Box(9562, 9562),
-  Box(9563, 9563),
-  Box(9564, 9564),
-  Box(9565, 9565),
-  Box(9566, 9566),
-  Box(9567, 9567),
-  Box(9568, 9568),
-  Box(9569, 9569),
-  Box(9570, 9570),
-  Box(9571, 9571),
-  Box(9572, 9572),
-  Box(9573, 9573),
-  Box(9574, 9574),
-  Box(9575, 9575),
-  Box(9576, 9576),
-  Box(9577, 9577),
-  Box(9578, 9578),
-  Box(9579, 9579),
-  Box(9580, 9580),
-  Box(9581, 9581),
-  Box(9582, 9582),
-  Box(9583, 9583),
-  Box(9584, 9584),
-  Box(9585, 9585),
-  Box(9586, 9586),
-  Box(9587, 9587),
-  Box(9588, 9588),
-  Box(9589, 9589),
-  Box(9590, 9590),
-  Box(9591, 9591),
-  Box(9592, 9592),
-  Box(9593, 9593),
-  Box(9594, 9594),
-  Box(9595, 9595),
-  Box(9596, 9596),
-  Box(9597, 9597),
-  Box(9598, 9598),
-  Box(9599, 9599),
-  Box(9600, 9600),
-  Box(9601, 9601),
-  Box(9602, 9602),
-  Box(9603, 9603),
-  Box(9604, 9604),
-  Box(9605, 9605),
-  Box(9606, 9606),
-  Box(9607, 9607),
-  Box(9608, 9608),
-  Box(9609, 9609),
-  Box(9610, 9610),
-  Box(9611, 9611),
-  Box(9612, 9612),
-  Box(9613, 9613),
-  Box(9614, 9614),
-  Box(9615, 9615),
-  Box(9616, 9616),
-  Box(9617, 9617),
-  Box(9618, 9618),
-  Box(9619, 9619),
-  Box(9620, 9620),
-  Box(9621, 9621),
-  Box(9622, 9622),
-  Box(9623, 9623),
-  Box(9624, 9624),
-  Box(9625, 9625),
-  Box(9626, 9626),
-  Box(9627, 9627),
-  Box(9628, 9628),
-  Box(9629, 9629),
-  Box(9630, 9630),
-  Box(9631, 9631),
-  Box(9632, 9632),
-  Box(9633, 9633),
-  Box(9634, 9634),
-  Box(9635, 9635),
-  Box(9636, 9636),
-  Box(9637, 9637),
-  Box(9638, 9638),
-  Box(9639, 9639),
-  Box(9640, 9640),
-  Box(9641, 9641),
-  Box(9642, 9642),
-  Box(9643, 9643),
-  Box(9644, 9644),
-  Box(9645, 9645),
-  Box(9646, 9646),
-  Box(9647, 9647),
-  Box(9648, 9648),
-  Box(9649, 9649),
-  Box(9650, 9650),
-  Box(9651, 9651),
-  Box(9652, 9652),
-  Box(9653, 9653),
-  Box(9654, 9654),
-  Box(9655, 9655),
-  Box(9656, 9656),
-  Box(9657, 9657),
-  Box(9658, 9658),
-  Box(9659, 9659),
-  Box(9660, 9660),
-  Box(9661, 9661),
-  Box(9662, 9662),
-  Box(9663, 9663),
-  Box(9664, 9664),
-  Box(9665, 9665),
-  Box(9666, 9666),
-  Box(9667, 9667),
-  Box(9668, 9668),
-  Box(9669, 9669),
-  Box(9670, 9670),
-  Box(9671, 9671),
-  Box(9672, 9672),
-  Box(9673, 9673),
-  Box(9674, 9674),
-  Box(9675, 9675),
-  Box(9676, 9676),
-  Box(9677, 9677),
-  Box(9678, 9678),
-  Box(9679, 9679),
-  Box(9680, 9680),
-  Box(9681, 9681),
-  Box(9682, 9682),
-  Box(9683, 9683),
-  Box(9684, 9684),
-  Box(9685, 9685),
-  Box(9686, 9686),
-  Box(9687, 9687),
-  Box(9688, 9688),
-  Box(9689, 9689),
-  Box(9690, 9690),
-  Box(9691, 9691),
-  Box(9692, 9692),
-  Box(9693, 9693),
-  Box(9694, 9694),
-  Box(9695, 9695),
-  Box(9696, 9696),
-  Box(9697, 9697),
-  Box(9698, 9698),
-  Box(9699, 9699),
-  Box(9700, 9700),
-  Box(9701, 9701),
-  Box(9702, 9702),
-  Box(9703, 9703),
-  Box(9704, 9704),
-  Box(9705, 9705),
-  Box(9706, 9706),
-  Box(9707, 9707),
-  Box(9708, 9708),
-  Box(9709, 9709),
-  Box(9710, 9710),
-  Box(9711, 9711),
-  Box(9712, 9712),
-  Box(9713, 9713),
-  Box(9714, 9714),
-  Box(9715, 9715),
-  Box(9716, 9716),
-  Box(9717, 9717),
-  Box(9718, 9718),
-  Box(9719, 9719),
-  Box(9720, 9720),
-  Box(9721, 9721),
-  Box(9722, 9722),
-  Box(9723, 9723),
-  Box(9724, 9724),
-  Box(9725, 9725),
-  Box(9726, 9726),
-  Box(9727, 9727),
-  Box(9728, 9728),
-  Box(9729, 9729),
-  Box(9730, 9730),
-  Box(9731, 9731),
-  Box(9732, 9732),
-  Box(9733, 9733),
-  Box(9734, 9734),
-  Box(9735, 9735),
-  Box(9736, 9736),
-  Box(9737, 9737),
-  Box(9738, 9738),
-  Box(9739, 9739),
-  Box(9740, 9740),
-  Box(9741, 9741),
-  Box(9742, 9742),
-  Box(9743, 9743),
-  Box(9744, 9744),
-  Box(9745, 9745),
-  Box(9746, 9746),
-  Box(9747, 9747),
-  Box(9748, 9748),
-  Box(9749, 9749),
-  Box(9750, 9750),
-  Box(9751, 9751),
-  Box(9752, 9752),
-  Box(9753, 9753),
-  Box(9754, 9754),
-  Box(9755, 9755),
-  Box(9756, 9756),
-  Box(9757, 9757),
-  Box(9758, 9758),
-  Box(9759, 9759),
-  Box(9760, 9760),
-  Box(9761, 9761),
-  Box(9762, 9762),
-  Box(9763, 9763),
-  Box(9764, 9764),
-  Box(9765, 9765),
-  Box(9766, 9766),
-  Box(9767, 9767),
-  Box(9768, 9768),
-  Box(9769, 9769),
-  Box(9770, 9770),
-  Box(9771, 9771),
-  Box(9772, 9772),
-  Box(9773, 9773),
-  Box(9774, 9774),
-  Box(9775, 9775),
-  Box(9776, 9776),
-  Box(9777, 9777),
-  Box(9778, 9778),
-  Box(9779, 9779),
-  Box(9780, 9780),
-  Box(9781, 9781),
-  Box(9782, 9782),
-  Box(9783, 9783),
-  Box(9784, 9784),
-  Box(9785, 9785),
-  Box(9786, 9786),
-  Box(9787, 9787),
-  Box(9788, 9788),
-  Box(9789, 9789),
-  Box(9790, 9790),
-  Box(9791, 9791),
-  Box(9792, 9792),
-  Box(9793, 9793),
-  Box(9794, 9794),
-  Box(9795, 9795),
-  Box(9796, 9796),
-  Box(9797, 9797),
-  Box(9798, 9798),
-  Box(9799, 9799),
-  Box(9800, 9800),
-  Box(9801, 9801),
-  Box(9802, 9802),
-  Box(9803, 9803),
-  Box(9804, 9804),
-  Box(9805, 9805),
-  Box(9806, 9806),
-  Box(9807, 9807),
-  Box(9808, 9808),
-  Box(9809, 9809),
-  Box(9810, 9810),
-  Box(9811, 9811),
-  Box(9812, 9812),
-  Box(9813, 9813),
-  Box(9814, 9814),
-  Box(9815, 9815),
-  Box(9816, 9816),
-  Box(9817, 9817),
-  Box(9818, 9818),
-  Box(9819, 9819),
-  Box(9820, 9820),
-  Box(9821, 9821),
-  Box(9822, 9822),
-  Box(9823, 9823),
-  Box(9824, 9824),
-  Box(9825, 9825),
-  Box(9826, 9826),
-  Box(9827, 9827),
-  Box(9828, 9828),
-  Box(9829, 9829),
-  Box(9830, 9830),
-  Box(9831, 9831),
-  Box(9832, 9832),
-  Box(9833, 9833),
-  Box(9834, 9834),
-  Box(9835, 9835),
-  Box(9836, 9836),
-  Box(9837, 9837),
-  Box(9838, 9838),
-  Box(9839, 9839),
-  Box(9840, 9840),
-  Box(9841, 9841),
-  Box(9842, 9842),
-  Box(9843, 9843),
-  Box(9844, 9844),
-  Box(9845, 9845),
-  Box(9846, 9846),
-  Box(9847, 9847),
-  Box(9848, 9848),
-  Box(9849, 9849),
-  Box(9850, 9850),
-  Box(9851, 9851),
-  Box(9852, 9852),
-  Box(9853, 9853),
-  Box(9854, 9854),
-  Box(9855, 9855),
-  Box(9856, 9856),
-  Box(9857, 9857),
-  Box(9858, 9858),
-  Box(9859, 9859),
-  Box(9860, 9860),
-  Box(9861, 9861),
-  Box(9862, 9862),
-  Box(9863, 9863),
-  Box(9864, 9864),
-  Box(9865, 9865),
-  Box(9866, 9866),
-  Box(9867, 9867),
-  Box(9868, 9868),
-  Box(9869, 9869),
-  Box(9870, 9870),
-  Box(9871, 9871),
-  Box(9872, 9872),
-  Box(9873, 9873),
-  Box(9874, 9874),
-  Box(9875, 9875),
-  Box(9876, 9876),
-  Box(9877, 9877),
-  Box(9878, 9878),
-  Box(9879, 9879),
-  Box(9880, 9880),
-  Box(9881, 9881),
-  Box(9882, 9882),
-  Box(9883, 9883),
-  Box(9884, 9884),
-  Box(9885, 9885),
-  Box(9886, 9886),
-  Box(9887, 9887),
-  Box(9888, 9888),
-  Box(9889, 9889),
-  Box(9890, 9890),
-  Box(9891, 9891),
-  Box(9892, 9892),
-  Box(9893, 9893),
-  Box(9894, 9894),
-  Box(9895, 9895),
-  Box(9896, 9896),
-  Box(9897, 9897),
-  Box(9898, 9898),
-  Box(9899, 9899),
-  Box(9900, 9900),
-  Box(9901, 9901),
-  Box(9902, 9902),
-  Box(9903, 9903),
-  Box(9904, 9904),
-  Box(9905, 9905),
-  Box(9906, 9906),
-  Box(9907, 9907),
-  Box(9908, 9908),
-  Box(9909, 9909),
-  Box(9910, 9910),
-  Box(9911, 9911),
-  Box(9912, 9912),
-  Box(9913, 9913),
-  Box(9914, 9914),
-  Box(9915, 9915),
-  Box(9916, 9916),
-  Box(9917, 9917),
-  Box(9918, 9918),
-  Box(9919, 9919),
-  Box(9920, 9920),
-  Box(9921, 9921),
-  Box(9922, 9922),
-  Box(9923, 9923),
-  Box(9924, 9924),
-  Box(9925, 9925),
-  Box(9926, 9926),
-  Box(9927, 9927),
-  Box(9928, 9928),
-  Box(9929, 9929),
-  Box(9930, 9930),
-  Box(9931, 9931),
-  Box(9932, 9932),
-  Box(9933, 9933),
-  Box(9934, 9934),
-  Box(9935, 9935),
-  Box(9936, 9936),
-  Box(9937, 9937),
-  Box(9938, 9938),
-  Box(9939, 9939),
-  Box(9940, 9940),
-  Box(9941, 9941),
-  Box(9942, 9942),
-  Box(9943, 9943),
-  Box(9944, 9944),
-  Box(9945, 9945),
-  Box(9946, 9946),
-  Box(9947, 9947),
-  Box(9948, 9948),
-  Box(9949, 9949),
-  Box(9950, 9950),
-  Box(9951, 9951),
-  Box(9952, 9952),
-  Box(9953, 9953),
-  Box(9954, 9954),
-  Box(9955, 9955),
-  Box(9956, 9956),
-  Box(9957, 9957),
-  Box(9958, 9958),
-  Box(9959, 9959),
-  Box(9960, 9960),
-  Box(9961, 9961),
-  Box(9962, 9962),
-  Box(9963, 9963),
-  Box(9964, 9964),
-  Box(9965, 9965),
-  Box(9966, 9966),
-  Box(9967, 9967),
-  Box(9968, 9968),
-  Box(9969, 9969),
-  Box(9970, 9970),
-  Box(9971, 9971),
-  Box(9972, 9972),
-  Box(9973, 9973),
-  Box(9974, 9974),
-  Box(9975, 9975),
-  Box(9976, 9976),
-  Box(9977, 9977),
-  Box(9978, 9978),
-  Box(9979, 9979),
-  Box(9980, 9980),
-  Box(9981, 9981),
-  Box(9982, 9982),
-  Box(9983, 9983),
-  Box(9984, 9984),
-  Box(9985, 9985),
-  Box(9986, 9986),
-  Box(9987, 9987),
-  Box(9988, 9988),
-  Box(9989, 9989),
-  Box(9990, 9990),
-  Box(9991, 9991),
-  Box(9992, 9992),
-  Box(9993, 9993),
-  Box(9994, 9994),
-  Box(9995, 9995),
-  Box(9996, 9996),
-  Box(9997, 9997),
-  Box(9998, 9998),
-  Box(9999, 9999),
-];
-
-confuse(x) {
-  try {
-    throw x;
-  } catch (e) {
-    return e;
-  }
-}
-
-main() {
-  if (!identical(confuse(list1), confuse(list2))) {
-    throw new Exception("list1 !== list2");
-  }
-}
diff --git a/tests/language_2/canonicalize/hashing_shallow_collision_instance_3_test.dart b/tests/language_2/canonicalize/hashing_shallow_collision_instance_3_test.dart
deleted file mode 100644
index 7835b476846..00000000000
--- a/tests/language_2/canonicalize/hashing_shallow_collision_instance_3_test.dart
+++ /dev/null
@@ -1,20036 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// If canonicalization hashes with only a field's cid, this will exhibit
-// quadratic time.
-
-class Box {
-  final Object a;
-  final Object b;
-  const Box(this.a, this.b);
-}
-
-// 10,000 elements.
-const list1 = [
-  Box(Box(0, 0), Box(0, 0)),
-  Box(Box(1, 1), Box(1, 1)),
-  Box(Box(2, 2), Box(2, 2)),
-  Box(Box(3, 3), Box(3, 3)),
-  Box(Box(4, 4), Box(4, 4)),
-  Box(Box(5, 5), Box(5, 5)),
-  Box(Box(6, 6), Box(6, 6)),
-  Box(Box(7, 7), Box(7, 7)),
-  Box(Box(8, 8), Box(8, 8)),
-  Box(Box(9, 9), Box(9, 9)),
-  Box(Box(10, 10), Box(10, 10)),
-  Box(Box(11, 11), Box(11, 11)),
-  Box(Box(12, 12), Box(12, 12)),
-  Box(Box(13, 13), Box(13, 13)),
-  Box(Box(14, 14), Box(14, 14)),
-  Box(Box(15, 15), Box(15, 15)),
-  Box(Box(16, 16), Box(16, 16)),
-  Box(Box(17, 17), Box(17, 17)),
-  Box(Box(18, 18), Box(18, 18)),
-  Box(Box(19, 19), Box(19, 19)),
-  Box(Box(20, 20), Box(20, 20)),
-  Box(Box(21, 21), Box(21, 21)),
-  Box(Box(22, 22), Box(22, 22)),
-  Box(Box(23, 23), Box(23, 23)),
-  Box(Box(24, 24), Box(24, 24)),
-  Box(Box(25, 25), Box(25, 25)),
-  Box(Box(26, 26), Box(26, 26)),
-  Box(Box(27, 27), Box(27, 27)),
-  Box(Box(28, 28), Box(28, 28)),
-  Box(Box(29, 29), Box(29, 29)),
-  Box(Box(30, 30), Box(30, 30)),
-  Box(Box(31, 31), Box(31, 31)),
-  Box(Box(32, 32), Box(32, 32)),
-  Box(Box(33, 33), Box(33, 33)),
-  Box(Box(34, 34), Box(34, 34)),
-  Box(Box(35, 35), Box(35, 35)),
-  Box(Box(36, 36), Box(36, 36)),
-  Box(Box(37, 37), Box(37, 37)),
-  Box(Box(38, 38), Box(38, 38)),
-  Box(Box(39, 39), Box(39, 39)),
-  Box(Box(40, 40), Box(40, 40)),
-  Box(Box(41, 41), Box(41, 41)),
-  Box(Box(42, 42), Box(42, 42)),
-  Box(Box(43, 43), Box(43, 43)),
-  Box(Box(44, 44), Box(44, 44)),
-  Box(Box(45, 45), Box(45, 45)),
-  Box(Box(46, 46), Box(46, 46)),
-  Box(Box(47, 47), Box(47, 47)),
-  Box(Box(48, 48), Box(48, 48)),
-  Box(Box(49, 49), Box(49, 49)),
-  Box(Box(50, 50), Box(50, 50)),
-  Box(Box(51, 51), Box(51, 51)),
-  Box(Box(52, 52), Box(52, 52)),
-  Box(Box(53, 53), Box(53, 53)),
-  Box(Box(54, 54), Box(54, 54)),
-  Box(Box(55, 55), Box(55, 55)),
-  Box(Box(56, 56), Box(56, 56)),
-  Box(Box(57, 57), Box(57, 57)),
-  Box(Box(58, 58), Box(58, 58)),
-  Box(Box(59, 59), Box(59, 59)),
-  Box(Box(60, 60), Box(60, 60)),
-  Box(Box(61, 61), Box(61, 61)),
-  Box(Box(62, 62), Box(62, 62)),
-  Box(Box(63, 63), Box(63, 63)),
-  Box(Box(64, 64), Box(64, 64)),
-  Box(Box(65, 65), Box(65, 65)),
-  Box(Box(66, 66), Box(66, 66)),
-  Box(Box(67, 67), Box(67, 67)),
-  Box(Box(68, 68), Box(68, 68)),
-  Box(Box(69, 69), Box(69, 69)),
-  Box(Box(70, 70), Box(70, 70)),
-  Box(Box(71, 71), Box(71, 71)),
-  Box(Box(72, 72), Box(72, 72)),
-  Box(Box(73, 73), Box(73, 73)),
-  Box(Box(74, 74), Box(74, 74)),
-  Box(Box(75, 75), Box(75, 75)),
-  Box(Box(76, 76), Box(76, 76)),
-  Box(Box(77, 77), Box(77, 77)),
-  Box(Box(78, 78), Box(78, 78)),
-  Box(Box(79, 79), Box(79, 79)),
-  Box(Box(80, 80), Box(80, 80)),
-  Box(Box(81, 81), Box(81, 81)),
-  Box(Box(82, 82), Box(82, 82)),
-  Box(Box(83, 83), Box(83, 83)),
-  Box(Box(84, 84), Box(84, 84)),
-  Box(Box(85, 85), Box(85, 85)),
-  Box(Box(86, 86), Box(86, 86)),
-  Box(Box(87, 87), Box(87, 87)),
-  Box(Box(88, 88), Box(88, 88)),
-  Box(Box(89, 89), Box(89, 89)),
-  Box(Box(90, 90), Box(90, 90)),
-  Box(Box(91, 91), Box(91, 91)),
-  Box(Box(92, 92), Box(92, 92)),
-  Box(Box(93, 93), Box(93, 93)),
-  Box(Box(94, 94), Box(94, 94)),
-  Box(Box(95, 95), Box(95, 95)),
-  Box(Box(96, 96), Box(96, 96)),
-  Box(Box(97, 97), Box(97, 97)),
-  Box(Box(98, 98), Box(98, 98)),
-  Box(Box(99, 99), Box(99, 99)),
-  Box(Box(100, 100), Box(100, 100)),
-  Box(Box(101, 101), Box(101, 101)),
-  Box(Box(102, 102), Box(102, 102)),
-  Box(Box(103, 103), Box(103, 103)),
-  Box(Box(104, 104), Box(104, 104)),
-  Box(Box(105, 105), Box(105, 105)),
-  Box(Box(106, 106), Box(106, 106)),
-  Box(Box(107, 107), Box(107, 107)),
-  Box(Box(108, 108), Box(108, 108)),
-  Box(Box(109, 109), Box(109, 109)),
-  Box(Box(110, 110), Box(110, 110)),
-  Box(Box(111, 111), Box(111, 111)),
-  Box(Box(112, 112), Box(112, 112)),
-  Box(Box(113, 113), Box(113, 113)),
-  Box(Box(114, 114), Box(114, 114)),
-  Box(Box(115, 115), Box(115, 115)),
-  Box(Box(116, 116), Box(116, 116)),
-  Box(Box(117, 117), Box(117, 117)),
-  Box(Box(118, 118), Box(118, 118)),
-  Box(Box(119, 119), Box(119, 119)),
-  Box(Box(120, 120), Box(120, 120)),
-  Box(Box(121, 121), Box(121, 121)),
-  Box(Box(122, 122), Box(122, 122)),
-  Box(Box(123, 123), Box(123, 123)),
-  Box(Box(124, 124), Box(124, 124)),
-  Box(Box(125, 125), Box(125, 125)),
-  Box(Box(126, 126), Box(126, 126)),
-  Box(Box(127, 127), Box(127, 127)),
-  Box(Box(128, 128), Box(128, 128)),
-  Box(Box(129, 129), Box(129, 129)),
-  Box(Box(130, 130), Box(130, 130)),
-  Box(Box(131, 131), Box(131, 131)),
-  Box(Box(132, 132), Box(132, 132)),
-  Box(Box(133, 133), Box(133, 133)),
-  Box(Box(134, 134), Box(134, 134)),
-  Box(Box(135, 135), Box(135, 135)),
-  Box(Box(136, 136), Box(136, 136)),
-  Box(Box(137, 137), Box(137, 137)),
-  Box(Box(138, 138), Box(138, 138)),
-  Box(Box(139, 139), Box(139, 139)),
-  Box(Box(140, 140), Box(140, 140)),
-  Box(Box(141, 141), Box(141, 141)),
-  Box(Box(142, 142), Box(142, 142)),
-  Box(Box(143, 143), Box(143, 143)),
-  Box(Box(144, 144), Box(144, 144)),
-  Box(Box(145, 145), Box(145, 145)),
-  Box(Box(146, 146), Box(146, 146)),
-  Box(Box(147, 147), Box(147, 147)),
-  Box(Box(148, 148), Box(148, 148)),
-  Box(Box(149, 149), Box(149, 149)),
-  Box(Box(150, 150), Box(150, 150)),
-  Box(Box(151, 151), Box(151, 151)),
-  Box(Box(152, 152), Box(152, 152)),
-  Box(Box(153, 153), Box(153, 153)),
-  Box(Box(154, 154), Box(154, 154)),
-  Box(Box(155, 155), Box(155, 155)),
-  Box(Box(156, 156), Box(156, 156)),
-  Box(Box(157, 157), Box(157, 157)),
-  Box(Box(158, 158), Box(158, 158)),
-  Box(Box(159, 159), Box(159, 159)),
-  Box(Box(160, 160), Box(160, 160)),
-  Box(Box(161, 161), Box(161, 161)),
-  Box(Box(162, 162), Box(162, 162)),
-  Box(Box(163, 163), Box(163, 163)),
-  Box(Box(164, 164), Box(164, 164)),
-  Box(Box(165, 165), Box(165, 165)),
-  Box(Box(166, 166), Box(166, 166)),
-  Box(Box(167, 167), Box(167, 167)),
-  Box(Box(168, 168), Box(168, 168)),
-  Box(Box(169, 169), Box(169, 169)),
-  Box(Box(170, 170), Box(170, 170)),
-  Box(Box(171, 171), Box(171, 171)),
-  Box(Box(172, 172), Box(172, 172)),
-  Box(Box(173, 173), Box(173, 173)),
-  Box(Box(174, 174), Box(174, 174)),
-  Box(Box(175, 175), Box(175, 175)),
-  Box(Box(176, 176), Box(176, 176)),
-  Box(Box(177, 177), Box(177, 177)),
-  Box(Box(178, 178), Box(178, 178)),
-  Box(Box(179, 179), Box(179, 179)),
-  Box(Box(180, 180), Box(180, 180)),
-  Box(Box(181, 181), Box(181, 181)),
-  Box(Box(182, 182), Box(182, 182)),
-  Box(Box(183, 183), Box(183, 183)),
-  Box(Box(184, 184), Box(184, 184)),
-  Box(Box(185, 185), Box(185, 185)),
-  Box(Box(186, 186), Box(186, 186)),
-  Box(Box(187, 187), Box(187, 187)),
-  Box(Box(188, 188), Box(188, 188)),
-  Box(Box(189, 189), Box(189, 189)),
-  Box(Box(190, 190), Box(190, 190)),
-  Box(Box(191, 191), Box(191, 191)),
-  Box(Box(192, 192), Box(192, 192)),
-  Box(Box(193, 193), Box(193, 193)),
-  Box(Box(194, 194), Box(194, 194)),
-  Box(Box(195, 195), Box(195, 195)),
-  Box(Box(196, 196), Box(196, 196)),
-  Box(Box(197, 197), Box(197, 197)),
-  Box(Box(198, 198), Box(198, 198)),
-  Box(Box(199, 199), Box(199, 199)),
-  Box(Box(200, 200), Box(200, 200)),
-  Box(Box(201, 201), Box(201, 201)),
-  Box(Box(202, 202), Box(202, 202)),
-  Box(Box(203, 203), Box(203, 203)),
-  Box(Box(204, 204), Box(204, 204)),
-  Box(Box(205, 205), Box(205, 205)),
-  Box(Box(206, 206), Box(206, 206)),
-  Box(Box(207, 207), Box(207, 207)),
-  Box(Box(208, 208), Box(208, 208)),
-  Box(Box(209, 209), Box(209, 209)),
-  Box(Box(210, 210), Box(210, 210)),
-  Box(Box(211, 211), Box(211, 211)),
-  Box(Box(212, 212), Box(212, 212)),
-  Box(Box(213, 213), Box(213, 213)),
-  Box(Box(214, 214), Box(214, 214)),
-  Box(Box(215, 215), Box(215, 215)),
-  Box(Box(216, 216), Box(216, 216)),
-  Box(Box(217, 217), Box(217, 217)),
-  Box(Box(218, 218), Box(218, 218)),
-  Box(Box(219, 219), Box(219, 219)),
-  Box(Box(220, 220), Box(220, 220)),
-  Box(Box(221, 221), Box(221, 221)),
-  Box(Box(222, 222), Box(222, 222)),
-  Box(Box(223, 223), Box(223, 223)),
-  Box(Box(224, 224), Box(224, 224)),
-  Box(Box(225, 225), Box(225, 225)),
-  Box(Box(226, 226), Box(226, 226)),
-  Box(Box(227, 227), Box(227, 227)),
-  Box(Box(228, 228), Box(228, 228)),
-  Box(Box(229, 229), Box(229, 229)),
-  Box(Box(230, 230), Box(230, 230)),
-  Box(Box(231, 231), Box(231, 231)),
-  Box(Box(232, 232), Box(232, 232)),
-  Box(Box(233, 233), Box(233, 233)),
-  Box(Box(234, 234), Box(234, 234)),
-  Box(Box(235, 235), Box(235, 235)),
-  Box(Box(236, 236), Box(236, 236)),
-  Box(Box(237, 237), Box(237, 237)),
-  Box(Box(238, 238), Box(238, 238)),
-  Box(Box(239, 239), Box(239, 239)),
-  Box(Box(240, 240), Box(240, 240)),
-  Box(Box(241, 241), Box(241, 241)),
-  Box(Box(242, 242), Box(242, 242)),
-  Box(Box(243, 243), Box(243, 243)),
-  Box(Box(244, 244), Box(244, 244)),
-  Box(Box(245, 245), Box(245, 245)),
-  Box(Box(246, 246), Box(246, 246)),
-  Box(Box(247, 247), Box(247, 247)),
-  Box(Box(248, 248), Box(248, 248)),
-  Box(Box(249, 249), Box(249, 249)),
-  Box(Box(250, 250), Box(250, 250)),
-  Box(Box(251, 251), Box(251, 251)),
-  Box(Box(252, 252), Box(252, 252)),
-  Box(Box(253, 253), Box(253, 253)),
-  Box(Box(254, 254), Box(254, 254)),
-  Box(Box(255, 255), Box(255, 255)),
-  Box(Box(256, 256), Box(256, 256)),
-  Box(Box(257, 257), Box(257, 257)),
-  Box(Box(258, 258), Box(258, 258)),
-  Box(Box(259, 259), Box(259, 259)),
-  Box(Box(260, 260), Box(260, 260)),
-  Box(Box(261, 261), Box(261, 261)),
-  Box(Box(262, 262), Box(262, 262)),
-  Box(Box(263, 263), Box(263, 263)),
-  Box(Box(264, 264), Box(264, 264)),
-  Box(Box(265, 265), Box(265, 265)),
-  Box(Box(266, 266), Box(266, 266)),
-  Box(Box(267, 267), Box(267, 267)),
-  Box(Box(268, 268), Box(268, 268)),
-  Box(Box(269, 269), Box(269, 269)),
-  Box(Box(270, 270), Box(270, 270)),
-  Box(Box(271, 271), Box(271, 271)),
-  Box(Box(272, 272), Box(272, 272)),
-  Box(Box(273, 273), Box(273, 273)),
-  Box(Box(274, 274), Box(274, 274)),
-  Box(Box(275, 275), Box(275, 275)),
-  Box(Box(276, 276), Box(276, 276)),
-  Box(Box(277, 277), Box(277, 277)),
-  Box(Box(278, 278), Box(278, 278)),
-  Box(Box(279, 279), Box(279, 279)),
-  Box(Box(280, 280), Box(280, 280)),
-  Box(Box(281, 281), Box(281, 281)),
-  Box(Box(282, 282), Box(282, 282)),
-  Box(Box(283, 283), Box(283, 283)),
-  Box(Box(284, 284), Box(284, 284)),
-  Box(Box(285, 285), Box(285, 285)),
-  Box(Box(286, 286), Box(286, 286)),
-  Box(Box(287, 287), Box(287, 287)),
-  Box(Box(288, 288), Box(288, 288)),
-  Box(Box(289, 289), Box(289, 289)),
-  Box(Box(290, 290), Box(290, 290)),
-  Box(Box(291, 291), Box(291, 291)),
-  Box(Box(292, 292), Box(292, 292)),
-  Box(Box(293, 293), Box(293, 293)),
-  Box(Box(294, 294), Box(294, 294)),
-  Box(Box(295, 295), Box(295, 295)),
-  Box(Box(296, 296), Box(296, 296)),
-  Box(Box(297, 297), Box(297, 297)),
-  Box(Box(298, 298), Box(298, 298)),
-  Box(Box(299, 299), Box(299, 299)),
-  Box(Box(300, 300), Box(300, 300)),
-  Box(Box(301, 301), Box(301, 301)),
-  Box(Box(302, 302), Box(302, 302)),
-  Box(Box(303, 303), Box(303, 303)),
-  Box(Box(304, 304), Box(304, 304)),
-  Box(Box(305, 305), Box(305, 305)),
-  Box(Box(306, 306), Box(306, 306)),
-  Box(Box(307, 307), Box(307, 307)),
-  Box(Box(308, 308), Box(308, 308)),
-  Box(Box(309, 309), Box(309, 309)),
-  Box(Box(310, 310), Box(310, 310)),
-  Box(Box(311, 311), Box(311, 311)),
-  Box(Box(312, 312), Box(312, 312)),
-  Box(Box(313, 313), Box(313, 313)),
-  Box(Box(314, 314), Box(314, 314)),
-  Box(Box(315, 315), Box(315, 315)),
-  Box(Box(316, 316), Box(316, 316)),
-  Box(Box(317, 317), Box(317, 317)),
-  Box(Box(318, 318), Box(318, 318)),
-  Box(Box(319, 319), Box(319, 319)),
-  Box(Box(320, 320), Box(320, 320)),
-  Box(Box(321, 321), Box(321, 321)),
-  Box(Box(322, 322), Box(322, 322)),
-  Box(Box(323, 323), Box(323, 323)),
-  Box(Box(324, 324), Box(324, 324)),
-  Box(Box(325, 325), Box(325, 325)),
-  Box(Box(326, 326), Box(326, 326)),
-  Box(Box(327, 327), Box(327, 327)),
-  Box(Box(328, 328), Box(328, 328)),
-  Box(Box(329, 329), Box(329, 329)),
-  Box(Box(330, 330), Box(330, 330)),
-  Box(Box(331, 331), Box(331, 331)),
-  Box(Box(332, 332), Box(332, 332)),
-  Box(Box(333, 333), Box(333, 333)),
-  Box(Box(334, 334), Box(334, 334)),
-  Box(Box(335, 335), Box(335, 335)),
-  Box(Box(336, 336), Box(336, 336)),
-  Box(Box(337, 337), Box(337, 337)),
-  Box(Box(338, 338), Box(338, 338)),
-  Box(Box(339, 339), Box(339, 339)),
-  Box(Box(340, 340), Box(340, 340)),
-  Box(Box(341, 341), Box(341, 341)),
-  Box(Box(342, 342), Box(342, 342)),
-  Box(Box(343, 343), Box(343, 343)),
-  Box(Box(344, 344), Box(344, 344)),
-  Box(Box(345, 345), Box(345, 345)),
-  Box(Box(346, 346), Box(346, 346)),
-  Box(Box(347, 347), Box(347, 347)),
-  Box(Box(348, 348), Box(348, 348)),
-  Box(Box(349, 349), Box(349, 349)),
-  Box(Box(350, 350), Box(350, 350)),
-  Box(Box(351, 351), Box(351, 351)),
-  Box(Box(352, 352), Box(352, 352)),
-  Box(Box(353, 353), Box(353, 353)),
-  Box(Box(354, 354), Box(354, 354)),
-  Box(Box(355, 355), Box(355, 355)),
-  Box(Box(356, 356), Box(356, 356)),
-  Box(Box(357, 357), Box(357, 357)),
-  Box(Box(358, 358), Box(358, 358)),
-  Box(Box(359, 359), Box(359, 359)),
-  Box(Box(360, 360), Box(360, 360)),
-  Box(Box(361, 361), Box(361, 361)),
-  Box(Box(362, 362), Box(362, 362)),
-  Box(Box(363, 363), Box(363, 363)),
-  Box(Box(364, 364), Box(364, 364)),
-  Box(Box(365, 365), Box(365, 365)),
-  Box(Box(366, 366), Box(366, 366)),
-  Box(Box(367, 367), Box(367, 367)),
-  Box(Box(368, 368), Box(368, 368)),
-  Box(Box(369, 369), Box(369, 369)),
-  Box(Box(370, 370), Box(370, 370)),
-  Box(Box(371, 371), Box(371, 371)),
-  Box(Box(372, 372), Box(372, 372)),
-  Box(Box(373, 373), Box(373, 373)),
-  Box(Box(374, 374), Box(374, 374)),
-  Box(Box(375, 375), Box(375, 375)),
-  Box(Box(376, 376), Box(376, 376)),
-  Box(Box(377, 377), Box(377, 377)),
-  Box(Box(378, 378), Box(378, 378)),
-  Box(Box(379, 379), Box(379, 379)),
-  Box(Box(380, 380), Box(380, 380)),
-  Box(Box(381, 381), Box(381, 381)),
-  Box(Box(382, 382), Box(382, 382)),
-  Box(Box(383, 383), Box(383, 383)),
-  Box(Box(384, 384), Box(384, 384)),
-  Box(Box(385, 385), Box(385, 385)),
-  Box(Box(386, 386), Box(386, 386)),
-  Box(Box(387, 387), Box(387, 387)),
-  Box(Box(388, 388), Box(388, 388)),
-  Box(Box(389, 389), Box(389, 389)),
-  Box(Box(390, 390), Box(390, 390)),
-  Box(Box(391, 391), Box(391, 391)),
-  Box(Box(392, 392), Box(392, 392)),
-  Box(Box(393, 393), Box(393, 393)),
-  Box(Box(394, 394), Box(394, 394)),
-  Box(Box(395, 395), Box(395, 395)),
-  Box(Box(396, 396), Box(396, 396)),
-  Box(Box(397, 397), Box(397, 397)),
-  Box(Box(398, 398), Box(398, 398)),
-  Box(Box(399, 399), Box(399, 399)),
-  Box(Box(400, 400), Box(400, 400)),
-  Box(Box(401, 401), Box(401, 401)),
-  Box(Box(402, 402), Box(402, 402)),
-  Box(Box(403, 403), Box(403, 403)),
-  Box(Box(404, 404), Box(404, 404)),
-  Box(Box(405, 405), Box(405, 405)),
-  Box(Box(406, 406), Box(406, 406)),
-  Box(Box(407, 407), Box(407, 407)),
-  Box(Box(408, 408), Box(408, 408)),
-  Box(Box(409, 409), Box(409, 409)),
-  Box(Box(410, 410), Box(410, 410)),
-  Box(Box(411, 411), Box(411, 411)),
-  Box(Box(412, 412), Box(412, 412)),
-  Box(Box(413, 413), Box(413, 413)),
-  Box(Box(414, 414), Box(414, 414)),
-  Box(Box(415, 415), Box(415, 415)),
-  Box(Box(416, 416), Box(416, 416)),
-  Box(Box(417, 417), Box(417, 417)),
-  Box(Box(418, 418), Box(418, 418)),
-  Box(Box(419, 419), Box(419, 419)),
-  Box(Box(420, 420), Box(420, 420)),
-  Box(Box(421, 421), Box(421, 421)),
-  Box(Box(422, 422), Box(422, 422)),
-  Box(Box(423, 423), Box(423, 423)),
-  Box(Box(424, 424), Box(424, 424)),
-  Box(Box(425, 425), Box(425, 425)),
-  Box(Box(426, 426), Box(426, 426)),
-  Box(Box(427, 427), Box(427, 427)),
-  Box(Box(428, 428), Box(428, 428)),
-  Box(Box(429, 429), Box(429, 429)),
-  Box(Box(430, 430), Box(430, 430)),
-  Box(Box(431, 431), Box(431, 431)),
-  Box(Box(432, 432), Box(432, 432)),
-  Box(Box(433, 433), Box(433, 433)),
-  Box(Box(434, 434), Box(434, 434)),
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-  Box(Box(9769, 9769), Box(9769, 9769)),
-  Box(Box(9770, 9770), Box(9770, 9770)),
-  Box(Box(9771, 9771), Box(9771, 9771)),
-  Box(Box(9772, 9772), Box(9772, 9772)),
-  Box(Box(9773, 9773), Box(9773, 9773)),
-  Box(Box(9774, 9774), Box(9774, 9774)),
-  Box(Box(9775, 9775), Box(9775, 9775)),
-  Box(Box(9776, 9776), Box(9776, 9776)),
-  Box(Box(9777, 9777), Box(9777, 9777)),
-  Box(Box(9778, 9778), Box(9778, 9778)),
-  Box(Box(9779, 9779), Box(9779, 9779)),
-  Box(Box(9780, 9780), Box(9780, 9780)),
-  Box(Box(9781, 9781), Box(9781, 9781)),
-  Box(Box(9782, 9782), Box(9782, 9782)),
-  Box(Box(9783, 9783), Box(9783, 9783)),
-  Box(Box(9784, 9784), Box(9784, 9784)),
-  Box(Box(9785, 9785), Box(9785, 9785)),
-  Box(Box(9786, 9786), Box(9786, 9786)),
-  Box(Box(9787, 9787), Box(9787, 9787)),
-  Box(Box(9788, 9788), Box(9788, 9788)),
-  Box(Box(9789, 9789), Box(9789, 9789)),
-  Box(Box(9790, 9790), Box(9790, 9790)),
-  Box(Box(9791, 9791), Box(9791, 9791)),
-  Box(Box(9792, 9792), Box(9792, 9792)),
-  Box(Box(9793, 9793), Box(9793, 9793)),
-  Box(Box(9794, 9794), Box(9794, 9794)),
-  Box(Box(9795, 9795), Box(9795, 9795)),
-  Box(Box(9796, 9796), Box(9796, 9796)),
-  Box(Box(9797, 9797), Box(9797, 9797)),
-  Box(Box(9798, 9798), Box(9798, 9798)),
-  Box(Box(9799, 9799), Box(9799, 9799)),
-  Box(Box(9800, 9800), Box(9800, 9800)),
-  Box(Box(9801, 9801), Box(9801, 9801)),
-  Box(Box(9802, 9802), Box(9802, 9802)),
-  Box(Box(9803, 9803), Box(9803, 9803)),
-  Box(Box(9804, 9804), Box(9804, 9804)),
-  Box(Box(9805, 9805), Box(9805, 9805)),
-  Box(Box(9806, 9806), Box(9806, 9806)),
-  Box(Box(9807, 9807), Box(9807, 9807)),
-  Box(Box(9808, 9808), Box(9808, 9808)),
-  Box(Box(9809, 9809), Box(9809, 9809)),
-  Box(Box(9810, 9810), Box(9810, 9810)),
-  Box(Box(9811, 9811), Box(9811, 9811)),
-  Box(Box(9812, 9812), Box(9812, 9812)),
-  Box(Box(9813, 9813), Box(9813, 9813)),
-  Box(Box(9814, 9814), Box(9814, 9814)),
-  Box(Box(9815, 9815), Box(9815, 9815)),
-  Box(Box(9816, 9816), Box(9816, 9816)),
-  Box(Box(9817, 9817), Box(9817, 9817)),
-  Box(Box(9818, 9818), Box(9818, 9818)),
-  Box(Box(9819, 9819), Box(9819, 9819)),
-  Box(Box(9820, 9820), Box(9820, 9820)),
-  Box(Box(9821, 9821), Box(9821, 9821)),
-  Box(Box(9822, 9822), Box(9822, 9822)),
-  Box(Box(9823, 9823), Box(9823, 9823)),
-  Box(Box(9824, 9824), Box(9824, 9824)),
-  Box(Box(9825, 9825), Box(9825, 9825)),
-  Box(Box(9826, 9826), Box(9826, 9826)),
-  Box(Box(9827, 9827), Box(9827, 9827)),
-  Box(Box(9828, 9828), Box(9828, 9828)),
-  Box(Box(9829, 9829), Box(9829, 9829)),
-  Box(Box(9830, 9830), Box(9830, 9830)),
-  Box(Box(9831, 9831), Box(9831, 9831)),
-  Box(Box(9832, 9832), Box(9832, 9832)),
-  Box(Box(9833, 9833), Box(9833, 9833)),
-  Box(Box(9834, 9834), Box(9834, 9834)),
-  Box(Box(9835, 9835), Box(9835, 9835)),
-  Box(Box(9836, 9836), Box(9836, 9836)),
-  Box(Box(9837, 9837), Box(9837, 9837)),
-  Box(Box(9838, 9838), Box(9838, 9838)),
-  Box(Box(9839, 9839), Box(9839, 9839)),
-  Box(Box(9840, 9840), Box(9840, 9840)),
-  Box(Box(9841, 9841), Box(9841, 9841)),
-  Box(Box(9842, 9842), Box(9842, 9842)),
-  Box(Box(9843, 9843), Box(9843, 9843)),
-  Box(Box(9844, 9844), Box(9844, 9844)),
-  Box(Box(9845, 9845), Box(9845, 9845)),
-  Box(Box(9846, 9846), Box(9846, 9846)),
-  Box(Box(9847, 9847), Box(9847, 9847)),
-  Box(Box(9848, 9848), Box(9848, 9848)),
-  Box(Box(9849, 9849), Box(9849, 9849)),
-  Box(Box(9850, 9850), Box(9850, 9850)),
-  Box(Box(9851, 9851), Box(9851, 9851)),
-  Box(Box(9852, 9852), Box(9852, 9852)),
-  Box(Box(9853, 9853), Box(9853, 9853)),
-  Box(Box(9854, 9854), Box(9854, 9854)),
-  Box(Box(9855, 9855), Box(9855, 9855)),
-  Box(Box(9856, 9856), Box(9856, 9856)),
-  Box(Box(9857, 9857), Box(9857, 9857)),
-  Box(Box(9858, 9858), Box(9858, 9858)),
-  Box(Box(9859, 9859), Box(9859, 9859)),
-  Box(Box(9860, 9860), Box(9860, 9860)),
-  Box(Box(9861, 9861), Box(9861, 9861)),
-  Box(Box(9862, 9862), Box(9862, 9862)),
-  Box(Box(9863, 9863), Box(9863, 9863)),
-  Box(Box(9864, 9864), Box(9864, 9864)),
-  Box(Box(9865, 9865), Box(9865, 9865)),
-  Box(Box(9866, 9866), Box(9866, 9866)),
-  Box(Box(9867, 9867), Box(9867, 9867)),
-  Box(Box(9868, 9868), Box(9868, 9868)),
-  Box(Box(9869, 9869), Box(9869, 9869)),
-  Box(Box(9870, 9870), Box(9870, 9870)),
-  Box(Box(9871, 9871), Box(9871, 9871)),
-  Box(Box(9872, 9872), Box(9872, 9872)),
-  Box(Box(9873, 9873), Box(9873, 9873)),
-  Box(Box(9874, 9874), Box(9874, 9874)),
-  Box(Box(9875, 9875), Box(9875, 9875)),
-  Box(Box(9876, 9876), Box(9876, 9876)),
-  Box(Box(9877, 9877), Box(9877, 9877)),
-  Box(Box(9878, 9878), Box(9878, 9878)),
-  Box(Box(9879, 9879), Box(9879, 9879)),
-  Box(Box(9880, 9880), Box(9880, 9880)),
-  Box(Box(9881, 9881), Box(9881, 9881)),
-  Box(Box(9882, 9882), Box(9882, 9882)),
-  Box(Box(9883, 9883), Box(9883, 9883)),
-  Box(Box(9884, 9884), Box(9884, 9884)),
-  Box(Box(9885, 9885), Box(9885, 9885)),
-  Box(Box(9886, 9886), Box(9886, 9886)),
-  Box(Box(9887, 9887), Box(9887, 9887)),
-  Box(Box(9888, 9888), Box(9888, 9888)),
-  Box(Box(9889, 9889), Box(9889, 9889)),
-  Box(Box(9890, 9890), Box(9890, 9890)),
-  Box(Box(9891, 9891), Box(9891, 9891)),
-  Box(Box(9892, 9892), Box(9892, 9892)),
-  Box(Box(9893, 9893), Box(9893, 9893)),
-  Box(Box(9894, 9894), Box(9894, 9894)),
-  Box(Box(9895, 9895), Box(9895, 9895)),
-  Box(Box(9896, 9896), Box(9896, 9896)),
-  Box(Box(9897, 9897), Box(9897, 9897)),
-  Box(Box(9898, 9898), Box(9898, 9898)),
-  Box(Box(9899, 9899), Box(9899, 9899)),
-  Box(Box(9900, 9900), Box(9900, 9900)),
-  Box(Box(9901, 9901), Box(9901, 9901)),
-  Box(Box(9902, 9902), Box(9902, 9902)),
-  Box(Box(9903, 9903), Box(9903, 9903)),
-  Box(Box(9904, 9904), Box(9904, 9904)),
-  Box(Box(9905, 9905), Box(9905, 9905)),
-  Box(Box(9906, 9906), Box(9906, 9906)),
-  Box(Box(9907, 9907), Box(9907, 9907)),
-  Box(Box(9908, 9908), Box(9908, 9908)),
-  Box(Box(9909, 9909), Box(9909, 9909)),
-  Box(Box(9910, 9910), Box(9910, 9910)),
-  Box(Box(9911, 9911), Box(9911, 9911)),
-  Box(Box(9912, 9912), Box(9912, 9912)),
-  Box(Box(9913, 9913), Box(9913, 9913)),
-  Box(Box(9914, 9914), Box(9914, 9914)),
-  Box(Box(9915, 9915), Box(9915, 9915)),
-  Box(Box(9916, 9916), Box(9916, 9916)),
-  Box(Box(9917, 9917), Box(9917, 9917)),
-  Box(Box(9918, 9918), Box(9918, 9918)),
-  Box(Box(9919, 9919), Box(9919, 9919)),
-  Box(Box(9920, 9920), Box(9920, 9920)),
-  Box(Box(9921, 9921), Box(9921, 9921)),
-  Box(Box(9922, 9922), Box(9922, 9922)),
-  Box(Box(9923, 9923), Box(9923, 9923)),
-  Box(Box(9924, 9924), Box(9924, 9924)),
-  Box(Box(9925, 9925), Box(9925, 9925)),
-  Box(Box(9926, 9926), Box(9926, 9926)),
-  Box(Box(9927, 9927), Box(9927, 9927)),
-  Box(Box(9928, 9928), Box(9928, 9928)),
-  Box(Box(9929, 9929), Box(9929, 9929)),
-  Box(Box(9930, 9930), Box(9930, 9930)),
-  Box(Box(9931, 9931), Box(9931, 9931)),
-  Box(Box(9932, 9932), Box(9932, 9932)),
-  Box(Box(9933, 9933), Box(9933, 9933)),
-  Box(Box(9934, 9934), Box(9934, 9934)),
-  Box(Box(9935, 9935), Box(9935, 9935)),
-  Box(Box(9936, 9936), Box(9936, 9936)),
-  Box(Box(9937, 9937), Box(9937, 9937)),
-  Box(Box(9938, 9938), Box(9938, 9938)),
-  Box(Box(9939, 9939), Box(9939, 9939)),
-  Box(Box(9940, 9940), Box(9940, 9940)),
-  Box(Box(9941, 9941), Box(9941, 9941)),
-  Box(Box(9942, 9942), Box(9942, 9942)),
-  Box(Box(9943, 9943), Box(9943, 9943)),
-  Box(Box(9944, 9944), Box(9944, 9944)),
-  Box(Box(9945, 9945), Box(9945, 9945)),
-  Box(Box(9946, 9946), Box(9946, 9946)),
-  Box(Box(9947, 9947), Box(9947, 9947)),
-  Box(Box(9948, 9948), Box(9948, 9948)),
-  Box(Box(9949, 9949), Box(9949, 9949)),
-  Box(Box(9950, 9950), Box(9950, 9950)),
-  Box(Box(9951, 9951), Box(9951, 9951)),
-  Box(Box(9952, 9952), Box(9952, 9952)),
-  Box(Box(9953, 9953), Box(9953, 9953)),
-  Box(Box(9954, 9954), Box(9954, 9954)),
-  Box(Box(9955, 9955), Box(9955, 9955)),
-  Box(Box(9956, 9956), Box(9956, 9956)),
-  Box(Box(9957, 9957), Box(9957, 9957)),
-  Box(Box(9958, 9958), Box(9958, 9958)),
-  Box(Box(9959, 9959), Box(9959, 9959)),
-  Box(Box(9960, 9960), Box(9960, 9960)),
-  Box(Box(9961, 9961), Box(9961, 9961)),
-  Box(Box(9962, 9962), Box(9962, 9962)),
-  Box(Box(9963, 9963), Box(9963, 9963)),
-  Box(Box(9964, 9964), Box(9964, 9964)),
-  Box(Box(9965, 9965), Box(9965, 9965)),
-  Box(Box(9966, 9966), Box(9966, 9966)),
-  Box(Box(9967, 9967), Box(9967, 9967)),
-  Box(Box(9968, 9968), Box(9968, 9968)),
-  Box(Box(9969, 9969), Box(9969, 9969)),
-  Box(Box(9970, 9970), Box(9970, 9970)),
-  Box(Box(9971, 9971), Box(9971, 9971)),
-  Box(Box(9972, 9972), Box(9972, 9972)),
-  Box(Box(9973, 9973), Box(9973, 9973)),
-  Box(Box(9974, 9974), Box(9974, 9974)),
-  Box(Box(9975, 9975), Box(9975, 9975)),
-  Box(Box(9976, 9976), Box(9976, 9976)),
-  Box(Box(9977, 9977), Box(9977, 9977)),
-  Box(Box(9978, 9978), Box(9978, 9978)),
-  Box(Box(9979, 9979), Box(9979, 9979)),
-  Box(Box(9980, 9980), Box(9980, 9980)),
-  Box(Box(9981, 9981), Box(9981, 9981)),
-  Box(Box(9982, 9982), Box(9982, 9982)),
-  Box(Box(9983, 9983), Box(9983, 9983)),
-  Box(Box(9984, 9984), Box(9984, 9984)),
-  Box(Box(9985, 9985), Box(9985, 9985)),
-  Box(Box(9986, 9986), Box(9986, 9986)),
-  Box(Box(9987, 9987), Box(9987, 9987)),
-  Box(Box(9988, 9988), Box(9988, 9988)),
-  Box(Box(9989, 9989), Box(9989, 9989)),
-  Box(Box(9990, 9990), Box(9990, 9990)),
-  Box(Box(9991, 9991), Box(9991, 9991)),
-  Box(Box(9992, 9992), Box(9992, 9992)),
-  Box(Box(9993, 9993), Box(9993, 9993)),
-  Box(Box(9994, 9994), Box(9994, 9994)),
-  Box(Box(9995, 9995), Box(9995, 9995)),
-  Box(Box(9996, 9996), Box(9996, 9996)),
-  Box(Box(9997, 9997), Box(9997, 9997)),
-  Box(Box(9998, 9998), Box(9998, 9998)),
-  Box(Box(9999, 9999), Box(9999, 9999)),
-];
-
-// 10,000 elements.
-const list2 = [
-  Box(Box(0, 0), Box(0, 0)),
-  Box(Box(1, 1), Box(1, 1)),
-  Box(Box(2, 2), Box(2, 2)),
-  Box(Box(3, 3), Box(3, 3)),
-  Box(Box(4, 4), Box(4, 4)),
-  Box(Box(5, 5), Box(5, 5)),
-  Box(Box(6, 6), Box(6, 6)),
-  Box(Box(7, 7), Box(7, 7)),
-  Box(Box(8, 8), Box(8, 8)),
-  Box(Box(9, 9), Box(9, 9)),
-  Box(Box(10, 10), Box(10, 10)),
-  Box(Box(11, 11), Box(11, 11)),
-  Box(Box(12, 12), Box(12, 12)),
-  Box(Box(13, 13), Box(13, 13)),
-  Box(Box(14, 14), Box(14, 14)),
-  Box(Box(15, 15), Box(15, 15)),
-  Box(Box(16, 16), Box(16, 16)),
-  Box(Box(17, 17), Box(17, 17)),
-  Box(Box(18, 18), Box(18, 18)),
-  Box(Box(19, 19), Box(19, 19)),
-  Box(Box(20, 20), Box(20, 20)),
-  Box(Box(21, 21), Box(21, 21)),
-  Box(Box(22, 22), Box(22, 22)),
-  Box(Box(23, 23), Box(23, 23)),
-  Box(Box(24, 24), Box(24, 24)),
-  Box(Box(25, 25), Box(25, 25)),
-  Box(Box(26, 26), Box(26, 26)),
-  Box(Box(27, 27), Box(27, 27)),
-  Box(Box(28, 28), Box(28, 28)),
-  Box(Box(29, 29), Box(29, 29)),
-  Box(Box(30, 30), Box(30, 30)),
-  Box(Box(31, 31), Box(31, 31)),
-  Box(Box(32, 32), Box(32, 32)),
-  Box(Box(33, 33), Box(33, 33)),
-  Box(Box(34, 34), Box(34, 34)),
-  Box(Box(35, 35), Box(35, 35)),
-  Box(Box(36, 36), Box(36, 36)),
-  Box(Box(37, 37), Box(37, 37)),
-  Box(Box(38, 38), Box(38, 38)),
-  Box(Box(39, 39), Box(39, 39)),
-  Box(Box(40, 40), Box(40, 40)),
-  Box(Box(41, 41), Box(41, 41)),
-  Box(Box(42, 42), Box(42, 42)),
-  Box(Box(43, 43), Box(43, 43)),
-  Box(Box(44, 44), Box(44, 44)),
-  Box(Box(45, 45), Box(45, 45)),
-  Box(Box(46, 46), Box(46, 46)),
-  Box(Box(47, 47), Box(47, 47)),
-  Box(Box(48, 48), Box(48, 48)),
-  Box(Box(49, 49), Box(49, 49)),
-  Box(Box(50, 50), Box(50, 50)),
-  Box(Box(51, 51), Box(51, 51)),
-  Box(Box(52, 52), Box(52, 52)),
-  Box(Box(53, 53), Box(53, 53)),
-  Box(Box(54, 54), Box(54, 54)),
-  Box(Box(55, 55), Box(55, 55)),
-  Box(Box(56, 56), Box(56, 56)),
-  Box(Box(57, 57), Box(57, 57)),
-  Box(Box(58, 58), Box(58, 58)),
-  Box(Box(59, 59), Box(59, 59)),
-  Box(Box(60, 60), Box(60, 60)),
-  Box(Box(61, 61), Box(61, 61)),
-  Box(Box(62, 62), Box(62, 62)),
-  Box(Box(63, 63), Box(63, 63)),
-  Box(Box(64, 64), Box(64, 64)),
-  Box(Box(65, 65), Box(65, 65)),
-  Box(Box(66, 66), Box(66, 66)),
-  Box(Box(67, 67), Box(67, 67)),
-  Box(Box(68, 68), Box(68, 68)),
-  Box(Box(69, 69), Box(69, 69)),
-  Box(Box(70, 70), Box(70, 70)),
-  Box(Box(71, 71), Box(71, 71)),
-  Box(Box(72, 72), Box(72, 72)),
-  Box(Box(73, 73), Box(73, 73)),
-  Box(Box(74, 74), Box(74, 74)),
-  Box(Box(75, 75), Box(75, 75)),
-  Box(Box(76, 76), Box(76, 76)),
-  Box(Box(77, 77), Box(77, 77)),
-  Box(Box(78, 78), Box(78, 78)),
-  Box(Box(79, 79), Box(79, 79)),
-  Box(Box(80, 80), Box(80, 80)),
-  Box(Box(81, 81), Box(81, 81)),
-  Box(Box(82, 82), Box(82, 82)),
-  Box(Box(83, 83), Box(83, 83)),
-  Box(Box(84, 84), Box(84, 84)),
-  Box(Box(85, 85), Box(85, 85)),
-  Box(Box(86, 86), Box(86, 86)),
-  Box(Box(87, 87), Box(87, 87)),
-  Box(Box(88, 88), Box(88, 88)),
-  Box(Box(89, 89), Box(89, 89)),
-  Box(Box(90, 90), Box(90, 90)),
-  Box(Box(91, 91), Box(91, 91)),
-  Box(Box(92, 92), Box(92, 92)),
-  Box(Box(93, 93), Box(93, 93)),
-  Box(Box(94, 94), Box(94, 94)),
-  Box(Box(95, 95), Box(95, 95)),
-  Box(Box(96, 96), Box(96, 96)),
-  Box(Box(97, 97), Box(97, 97)),
-  Box(Box(98, 98), Box(98, 98)),
-  Box(Box(99, 99), Box(99, 99)),
-  Box(Box(100, 100), Box(100, 100)),
-  Box(Box(101, 101), Box(101, 101)),
-  Box(Box(102, 102), Box(102, 102)),
-  Box(Box(103, 103), Box(103, 103)),
-  Box(Box(104, 104), Box(104, 104)),
-  Box(Box(105, 105), Box(105, 105)),
-  Box(Box(106, 106), Box(106, 106)),
-  Box(Box(107, 107), Box(107, 107)),
-  Box(Box(108, 108), Box(108, 108)),
-  Box(Box(109, 109), Box(109, 109)),
-  Box(Box(110, 110), Box(110, 110)),
-  Box(Box(111, 111), Box(111, 111)),
-  Box(Box(112, 112), Box(112, 112)),
-  Box(Box(113, 113), Box(113, 113)),
-  Box(Box(114, 114), Box(114, 114)),
-  Box(Box(115, 115), Box(115, 115)),
-  Box(Box(116, 116), Box(116, 116)),
-  Box(Box(117, 117), Box(117, 117)),
-  Box(Box(118, 118), Box(118, 118)),
-  Box(Box(119, 119), Box(119, 119)),
-  Box(Box(120, 120), Box(120, 120)),
-  Box(Box(121, 121), Box(121, 121)),
-  Box(Box(122, 122), Box(122, 122)),
-  Box(Box(123, 123), Box(123, 123)),
-  Box(Box(124, 124), Box(124, 124)),
-  Box(Box(125, 125), Box(125, 125)),
-  Box(Box(126, 126), Box(126, 126)),
-  Box(Box(127, 127), Box(127, 127)),
-  Box(Box(128, 128), Box(128, 128)),
-  Box(Box(129, 129), Box(129, 129)),
-  Box(Box(130, 130), Box(130, 130)),
-  Box(Box(131, 131), Box(131, 131)),
-  Box(Box(132, 132), Box(132, 132)),
-  Box(Box(133, 133), Box(133, 133)),
-  Box(Box(134, 134), Box(134, 134)),
-  Box(Box(135, 135), Box(135, 135)),
-  Box(Box(136, 136), Box(136, 136)),
-  Box(Box(137, 137), Box(137, 137)),
-  Box(Box(138, 138), Box(138, 138)),
-  Box(Box(139, 139), Box(139, 139)),
-  Box(Box(140, 140), Box(140, 140)),
-  Box(Box(141, 141), Box(141, 141)),
-  Box(Box(142, 142), Box(142, 142)),
-  Box(Box(143, 143), Box(143, 143)),
-  Box(Box(144, 144), Box(144, 144)),
-  Box(Box(145, 145), Box(145, 145)),
-  Box(Box(146, 146), Box(146, 146)),
-  Box(Box(147, 147), Box(147, 147)),
-  Box(Box(148, 148), Box(148, 148)),
-  Box(Box(149, 149), Box(149, 149)),
-  Box(Box(150, 150), Box(150, 150)),
-  Box(Box(151, 151), Box(151, 151)),
-  Box(Box(152, 152), Box(152, 152)),
-  Box(Box(153, 153), Box(153, 153)),
-  Box(Box(154, 154), Box(154, 154)),
-  Box(Box(155, 155), Box(155, 155)),
-  Box(Box(156, 156), Box(156, 156)),
-  Box(Box(157, 157), Box(157, 157)),
-  Box(Box(158, 158), Box(158, 158)),
-  Box(Box(159, 159), Box(159, 159)),
-  Box(Box(160, 160), Box(160, 160)),
-  Box(Box(161, 161), Box(161, 161)),
-  Box(Box(162, 162), Box(162, 162)),
-  Box(Box(163, 163), Box(163, 163)),
-  Box(Box(164, 164), Box(164, 164)),
-  Box(Box(165, 165), Box(165, 165)),
-  Box(Box(166, 166), Box(166, 166)),
-  Box(Box(167, 167), Box(167, 167)),
-  Box(Box(168, 168), Box(168, 168)),
-  Box(Box(169, 169), Box(169, 169)),
-  Box(Box(170, 170), Box(170, 170)),
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-  Box(Box(9923, 9923), Box(9923, 9923)),
-  Box(Box(9924, 9924), Box(9924, 9924)),
-  Box(Box(9925, 9925), Box(9925, 9925)),
-  Box(Box(9926, 9926), Box(9926, 9926)),
-  Box(Box(9927, 9927), Box(9927, 9927)),
-  Box(Box(9928, 9928), Box(9928, 9928)),
-  Box(Box(9929, 9929), Box(9929, 9929)),
-  Box(Box(9930, 9930), Box(9930, 9930)),
-  Box(Box(9931, 9931), Box(9931, 9931)),
-  Box(Box(9932, 9932), Box(9932, 9932)),
-  Box(Box(9933, 9933), Box(9933, 9933)),
-  Box(Box(9934, 9934), Box(9934, 9934)),
-  Box(Box(9935, 9935), Box(9935, 9935)),
-  Box(Box(9936, 9936), Box(9936, 9936)),
-  Box(Box(9937, 9937), Box(9937, 9937)),
-  Box(Box(9938, 9938), Box(9938, 9938)),
-  Box(Box(9939, 9939), Box(9939, 9939)),
-  Box(Box(9940, 9940), Box(9940, 9940)),
-  Box(Box(9941, 9941), Box(9941, 9941)),
-  Box(Box(9942, 9942), Box(9942, 9942)),
-  Box(Box(9943, 9943), Box(9943, 9943)),
-  Box(Box(9944, 9944), Box(9944, 9944)),
-  Box(Box(9945, 9945), Box(9945, 9945)),
-  Box(Box(9946, 9946), Box(9946, 9946)),
-  Box(Box(9947, 9947), Box(9947, 9947)),
-  Box(Box(9948, 9948), Box(9948, 9948)),
-  Box(Box(9949, 9949), Box(9949, 9949)),
-  Box(Box(9950, 9950), Box(9950, 9950)),
-  Box(Box(9951, 9951), Box(9951, 9951)),
-  Box(Box(9952, 9952), Box(9952, 9952)),
-  Box(Box(9953, 9953), Box(9953, 9953)),
-  Box(Box(9954, 9954), Box(9954, 9954)),
-  Box(Box(9955, 9955), Box(9955, 9955)),
-  Box(Box(9956, 9956), Box(9956, 9956)),
-  Box(Box(9957, 9957), Box(9957, 9957)),
-  Box(Box(9958, 9958), Box(9958, 9958)),
-  Box(Box(9959, 9959), Box(9959, 9959)),
-  Box(Box(9960, 9960), Box(9960, 9960)),
-  Box(Box(9961, 9961), Box(9961, 9961)),
-  Box(Box(9962, 9962), Box(9962, 9962)),
-  Box(Box(9963, 9963), Box(9963, 9963)),
-  Box(Box(9964, 9964), Box(9964, 9964)),
-  Box(Box(9965, 9965), Box(9965, 9965)),
-  Box(Box(9966, 9966), Box(9966, 9966)),
-  Box(Box(9967, 9967), Box(9967, 9967)),
-  Box(Box(9968, 9968), Box(9968, 9968)),
-  Box(Box(9969, 9969), Box(9969, 9969)),
-  Box(Box(9970, 9970), Box(9970, 9970)),
-  Box(Box(9971, 9971), Box(9971, 9971)),
-  Box(Box(9972, 9972), Box(9972, 9972)),
-  Box(Box(9973, 9973), Box(9973, 9973)),
-  Box(Box(9974, 9974), Box(9974, 9974)),
-  Box(Box(9975, 9975), Box(9975, 9975)),
-  Box(Box(9976, 9976), Box(9976, 9976)),
-  Box(Box(9977, 9977), Box(9977, 9977)),
-  Box(Box(9978, 9978), Box(9978, 9978)),
-  Box(Box(9979, 9979), Box(9979, 9979)),
-  Box(Box(9980, 9980), Box(9980, 9980)),
-  Box(Box(9981, 9981), Box(9981, 9981)),
-  Box(Box(9982, 9982), Box(9982, 9982)),
-  Box(Box(9983, 9983), Box(9983, 9983)),
-  Box(Box(9984, 9984), Box(9984, 9984)),
-  Box(Box(9985, 9985), Box(9985, 9985)),
-  Box(Box(9986, 9986), Box(9986, 9986)),
-  Box(Box(9987, 9987), Box(9987, 9987)),
-  Box(Box(9988, 9988), Box(9988, 9988)),
-  Box(Box(9989, 9989), Box(9989, 9989)),
-  Box(Box(9990, 9990), Box(9990, 9990)),
-  Box(Box(9991, 9991), Box(9991, 9991)),
-  Box(Box(9992, 9992), Box(9992, 9992)),
-  Box(Box(9993, 9993), Box(9993, 9993)),
-  Box(Box(9994, 9994), Box(9994, 9994)),
-  Box(Box(9995, 9995), Box(9995, 9995)),
-  Box(Box(9996, 9996), Box(9996, 9996)),
-  Box(Box(9997, 9997), Box(9997, 9997)),
-  Box(Box(9998, 9998), Box(9998, 9998)),
-  Box(Box(9999, 9999), Box(9999, 9999)),
-];
-
-confuse(x) {
-  try {
-    throw x;
-  } catch (e) {
-    return e;
-  }
-}
-
-main() {
-  if (!identical(confuse(list1), confuse(list2))) {
-    throw new Exception("list1 !== list2");
-  }
-}
diff --git a/tests/language_2/canonicalize/hashing_shallow_collision_instance_test.dart b/tests/language_2/canonicalize/hashing_shallow_collision_instance_test.dart
deleted file mode 100644
index c2af8e086fd..00000000000
--- a/tests/language_2/canonicalize/hashing_shallow_collision_instance_test.dart
+++ /dev/null
@@ -1,20031 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// If canonicalization hashes with only a field's cid, this will exhibit
-// quadratic time.
-
-class Box {
-  final Object content;
-  const Box(this.content);
-}
-
-// 10,000 elements.
-const list1 = [
-Box(Box(0)),
-Box(Box(1)),
-Box(Box(2)),
-Box(Box(3)),
-Box(Box(4)),
-Box(Box(5)),
-Box(Box(6)),
-Box(Box(7)),
-Box(Box(8)),
-Box(Box(9)),
-Box(Box(10)),
-Box(Box(11)),
-Box(Box(12)),
-Box(Box(13)),
-Box(Box(14)),
-Box(Box(15)),
-Box(Box(16)),
-Box(Box(17)),
-Box(Box(18)),
-Box(Box(19)),
-Box(Box(20)),
-Box(Box(21)),
-Box(Box(22)),
-Box(Box(23)),
-Box(Box(24)),
-Box(Box(25)),
-Box(Box(26)),
-Box(Box(27)),
-Box(Box(28)),
-Box(Box(29)),
-Box(Box(30)),
-Box(Box(31)),
-Box(Box(32)),
-Box(Box(33)),
-Box(Box(34)),
-Box(Box(35)),
-Box(Box(36)),
-Box(Box(37)),
-Box(Box(38)),
-Box(Box(39)),
-Box(Box(40)),
-Box(Box(41)),
-Box(Box(42)),
-Box(Box(43)),
-Box(Box(44)),
-Box(Box(45)),
-Box(Box(46)),
-Box(Box(47)),
-Box(Box(48)),
-Box(Box(49)),
-Box(Box(50)),
-Box(Box(51)),
-Box(Box(52)),
-Box(Box(53)),
-Box(Box(54)),
-Box(Box(55)),
-Box(Box(56)),
-Box(Box(57)),
-Box(Box(58)),
-Box(Box(59)),
-Box(Box(60)),
-Box(Box(61)),
-Box(Box(62)),
-Box(Box(63)),
-Box(Box(64)),
-Box(Box(65)),
-Box(Box(66)),
-Box(Box(67)),
-Box(Box(68)),
-Box(Box(69)),
-Box(Box(70)),
-Box(Box(71)),
-Box(Box(72)),
-Box(Box(73)),
-Box(Box(74)),
-Box(Box(75)),
-Box(Box(76)),
-Box(Box(77)),
-Box(Box(78)),
-Box(Box(79)),
-Box(Box(80)),
-Box(Box(81)),
-Box(Box(82)),
-Box(Box(83)),
-Box(Box(84)),
-Box(Box(85)),
-Box(Box(86)),
-Box(Box(87)),
-Box(Box(88)),
-Box(Box(89)),
-Box(Box(90)),
-Box(Box(91)),
-Box(Box(92)),
-Box(Box(93)),
-Box(Box(94)),
-Box(Box(95)),
-Box(Box(96)),
-Box(Box(97)),
-Box(Box(98)),
-Box(Box(99)),
-Box(Box(100)),
-Box(Box(101)),
-Box(Box(102)),
-Box(Box(103)),
-Box(Box(104)),
-Box(Box(105)),
-Box(Box(106)),
-Box(Box(107)),
-Box(Box(108)),
-Box(Box(109)),
-Box(Box(110)),
-Box(Box(111)),
-Box(Box(112)),
-Box(Box(113)),
-Box(Box(114)),
-Box(Box(115)),
-Box(Box(116)),
-Box(Box(117)),
-Box(Box(118)),
-Box(Box(119)),
-Box(Box(120)),
-Box(Box(121)),
-Box(Box(122)),
-Box(Box(123)),
-Box(Box(124)),
-Box(Box(125)),
-Box(Box(126)),
-Box(Box(127)),
-Box(Box(128)),
-Box(Box(129)),
-Box(Box(130)),
-Box(Box(131)),
-Box(Box(132)),
-Box(Box(133)),
-Box(Box(134)),
-Box(Box(135)),
-Box(Box(136)),
-Box(Box(137)),
-Box(Box(138)),
-Box(Box(139)),
-Box(Box(140)),
-Box(Box(141)),
-Box(Box(142)),
-Box(Box(143)),
-Box(Box(144)),
-Box(Box(145)),
-Box(Box(146)),
-Box(Box(147)),
-Box(Box(148)),
-Box(Box(149)),
-Box(Box(150)),
-Box(Box(151)),
-Box(Box(152)),
-Box(Box(153)),
-Box(Box(154)),
-Box(Box(155)),
-Box(Box(156)),
-Box(Box(157)),
-Box(Box(158)),
-Box(Box(159)),
-Box(Box(160)),
-Box(Box(161)),
-Box(Box(162)),
-Box(Box(163)),
-Box(Box(164)),
-Box(Box(165)),
-Box(Box(166)),
-Box(Box(167)),
-Box(Box(168)),
-Box(Box(169)),
-Box(Box(170)),
-Box(Box(171)),
-Box(Box(172)),
-Box(Box(173)),
-Box(Box(174)),
-Box(Box(175)),
-Box(Box(176)),
-Box(Box(177)),
-Box(Box(178)),
-Box(Box(179)),
-Box(Box(180)),
-Box(Box(181)),
-Box(Box(182)),
-Box(Box(183)),
-Box(Box(184)),
-Box(Box(185)),
-Box(Box(186)),
-Box(Box(187)),
-Box(Box(188)),
-Box(Box(189)),
-Box(Box(190)),
-Box(Box(191)),
-Box(Box(192)),
-Box(Box(193)),
-Box(Box(194)),
-Box(Box(195)),
-Box(Box(196)),
-Box(Box(197)),
-Box(Box(198)),
-Box(Box(199)),
-Box(Box(200)),
-Box(Box(201)),
-Box(Box(202)),
-Box(Box(203)),
-Box(Box(204)),
-Box(Box(205)),
-Box(Box(206)),
-Box(Box(207)),
-Box(Box(208)),
-Box(Box(209)),
-Box(Box(210)),
-Box(Box(211)),
-Box(Box(212)),
-Box(Box(213)),
-Box(Box(214)),
-Box(Box(215)),
-Box(Box(216)),
-Box(Box(217)),
-Box(Box(218)),
-Box(Box(219)),
-Box(Box(220)),
-Box(Box(221)),
-Box(Box(222)),
-Box(Box(223)),
-Box(Box(224)),
-Box(Box(225)),
-Box(Box(226)),
-Box(Box(227)),
-Box(Box(228)),
-Box(Box(229)),
-Box(Box(230)),
-Box(Box(231)),
-Box(Box(232)),
-Box(Box(233)),
-Box(Box(234)),
-Box(Box(235)),
-Box(Box(236)),
-Box(Box(237)),
-Box(Box(238)),
-Box(Box(239)),
-Box(Box(240)),
-Box(Box(241)),
-Box(Box(242)),
-Box(Box(243)),
-Box(Box(244)),
-Box(Box(245)),
-Box(Box(246)),
-Box(Box(247)),
-Box(Box(248)),
-Box(Box(249)),
-Box(Box(250)),
-Box(Box(251)),
-Box(Box(252)),
-Box(Box(253)),
-Box(Box(254)),
-Box(Box(255)),
-Box(Box(256)),
-Box(Box(257)),
-Box(Box(258)),
-Box(Box(259)),
-Box(Box(260)),
-Box(Box(261)),
-Box(Box(262)),
-Box(Box(263)),
-Box(Box(264)),
-Box(Box(265)),
-Box(Box(266)),
-Box(Box(267)),
-Box(Box(268)),
-Box(Box(269)),
-Box(Box(270)),
-Box(Box(271)),
-Box(Box(272)),
-Box(Box(273)),
-Box(Box(274)),
-Box(Box(275)),
-Box(Box(276)),
-Box(Box(277)),
-Box(Box(278)),
-Box(Box(279)),
-Box(Box(280)),
-Box(Box(281)),
-Box(Box(282)),
-Box(Box(283)),
-Box(Box(284)),
-Box(Box(285)),
-Box(Box(286)),
-Box(Box(287)),
-Box(Box(288)),
-Box(Box(289)),
-Box(Box(290)),
-Box(Box(291)),
-Box(Box(292)),
-Box(Box(293)),
-Box(Box(294)),
-Box(Box(295)),
-Box(Box(296)),
-Box(Box(297)),
-Box(Box(298)),
-Box(Box(299)),
-Box(Box(300)),
-Box(Box(301)),
-Box(Box(302)),
-Box(Box(303)),
-Box(Box(304)),
-Box(Box(305)),
-Box(Box(306)),
-Box(Box(307)),
-Box(Box(308)),
-Box(Box(309)),
-Box(Box(310)),
-Box(Box(311)),
-Box(Box(312)),
-Box(Box(313)),
-Box(Box(314)),
-Box(Box(315)),
-Box(Box(316)),
-Box(Box(317)),
-Box(Box(318)),
-Box(Box(319)),
-Box(Box(320)),
-Box(Box(321)),
-Box(Box(322)),
-Box(Box(323)),
-Box(Box(324)),
-Box(Box(325)),
-Box(Box(326)),
-Box(Box(327)),
-Box(Box(328)),
-Box(Box(329)),
-Box(Box(330)),
-Box(Box(331)),
-Box(Box(332)),
-Box(Box(333)),
-Box(Box(334)),
-Box(Box(335)),
-Box(Box(336)),
-Box(Box(337)),
-Box(Box(338)),
-Box(Box(339)),
-Box(Box(340)),
-Box(Box(341)),
-Box(Box(342)),
-Box(Box(343)),
-Box(Box(344)),
-Box(Box(345)),
-Box(Box(346)),
-Box(Box(347)),
-Box(Box(348)),
-Box(Box(349)),
-Box(Box(350)),
-Box(Box(351)),
-Box(Box(352)),
-Box(Box(353)),
-Box(Box(354)),
-Box(Box(355)),
-Box(Box(356)),
-Box(Box(357)),
-Box(Box(358)),
-Box(Box(359)),
-Box(Box(360)),
-Box(Box(361)),
-Box(Box(362)),
-Box(Box(363)),
-Box(Box(364)),
-Box(Box(365)),
-Box(Box(366)),
-Box(Box(367)),
-Box(Box(368)),
-Box(Box(369)),
-Box(Box(370)),
-Box(Box(371)),
-Box(Box(372)),
-Box(Box(373)),
-Box(Box(374)),
-Box(Box(375)),
-Box(Box(376)),
-Box(Box(377)),
-Box(Box(378)),
-Box(Box(379)),
-Box(Box(380)),
-Box(Box(381)),
-Box(Box(382)),
-Box(Box(383)),
-Box(Box(384)),
-Box(Box(385)),
-Box(Box(386)),
-Box(Box(387)),
-Box(Box(388)),
-Box(Box(389)),
-Box(Box(390)),
-Box(Box(391)),
-Box(Box(392)),
-Box(Box(393)),
-Box(Box(394)),
-Box(Box(395)),
-Box(Box(396)),
-Box(Box(397)),
-Box(Box(398)),
-Box(Box(399)),
-Box(Box(400)),
-Box(Box(401)),
-Box(Box(402)),
-Box(Box(403)),
-Box(Box(404)),
-Box(Box(405)),
-Box(Box(406)),
-Box(Box(407)),
-Box(Box(408)),
-Box(Box(409)),
-Box(Box(410)),
-Box(Box(411)),
-Box(Box(412)),
-Box(Box(413)),
-Box(Box(414)),
-Box(Box(415)),
-Box(Box(416)),
-Box(Box(417)),
-Box(Box(418)),
-Box(Box(419)),
-Box(Box(420)),
-Box(Box(421)),
-Box(Box(422)),
-Box(Box(423)),
-Box(Box(424)),
-Box(Box(425)),
-Box(Box(426)),
-Box(Box(427)),
-Box(Box(428)),
-Box(Box(429)),
-Box(Box(430)),
-Box(Box(431)),
-Box(Box(432)),
-Box(Box(433)),
-Box(Box(434)),
-Box(Box(435)),
-Box(Box(436)),
-Box(Box(437)),
-Box(Box(438)),
-Box(Box(439)),
-Box(Box(440)),
-Box(Box(441)),
-Box(Box(442)),
-Box(Box(443)),
-Box(Box(444)),
-Box(Box(445)),
-Box(Box(446)),
-Box(Box(447)),
-Box(Box(448)),
-Box(Box(449)),
-Box(Box(450)),
-Box(Box(451)),
-Box(Box(452)),
-Box(Box(453)),
-Box(Box(454)),
-Box(Box(455)),
-Box(Box(456)),
-Box(Box(457)),
-Box(Box(458)),
-Box(Box(459)),
-Box(Box(460)),
-Box(Box(461)),
-Box(Box(462)),
-Box(Box(463)),
-Box(Box(464)),
-Box(Box(465)),
-Box(Box(466)),
-Box(Box(467)),
-Box(Box(468)),
-Box(Box(469)),
-Box(Box(470)),
-Box(Box(471)),
-Box(Box(472)),
-Box(Box(473)),
-Box(Box(474)),
-Box(Box(475)),
-Box(Box(476)),
-Box(Box(477)),
-Box(Box(478)),
-Box(Box(479)),
-Box(Box(480)),
-Box(Box(481)),
-Box(Box(482)),
-Box(Box(483)),
-Box(Box(484)),
-Box(Box(485)),
-Box(Box(486)),
-Box(Box(487)),
-Box(Box(488)),
-Box(Box(489)),
-Box(Box(490)),
-Box(Box(491)),
-Box(Box(492)),
-Box(Box(493)),
-Box(Box(494)),
-Box(Box(495)),
-Box(Box(496)),
-Box(Box(497)),
-Box(Box(498)),
-Box(Box(499)),
-Box(Box(500)),
-Box(Box(501)),
-Box(Box(502)),
-Box(Box(503)),
-Box(Box(504)),
-Box(Box(505)),
-Box(Box(506)),
-Box(Box(507)),
-Box(Box(508)),
-Box(Box(509)),
-Box(Box(510)),
-Box(Box(511)),
-Box(Box(512)),
-Box(Box(513)),
-Box(Box(514)),
-Box(Box(515)),
-Box(Box(516)),
-Box(Box(517)),
-Box(Box(518)),
-Box(Box(519)),
-Box(Box(520)),
-Box(Box(521)),
-Box(Box(522)),
-Box(Box(523)),
-Box(Box(524)),
-Box(Box(525)),
-Box(Box(526)),
-Box(Box(527)),
-Box(Box(528)),
-Box(Box(529)),
-Box(Box(530)),
-Box(Box(531)),
-Box(Box(532)),
-Box(Box(533)),
-Box(Box(534)),
-Box(Box(535)),
-Box(Box(536)),
-Box(Box(537)),
-Box(Box(538)),
-Box(Box(539)),
-Box(Box(540)),
-Box(Box(541)),
-Box(Box(542)),
-Box(Box(543)),
-Box(Box(544)),
-Box(Box(545)),
-Box(Box(546)),
-Box(Box(547)),
-Box(Box(548)),
-Box(Box(549)),
-Box(Box(550)),
-Box(Box(551)),
-Box(Box(552)),
-Box(Box(553)),
-Box(Box(554)),
-Box(Box(555)),
-Box(Box(556)),
-Box(Box(557)),
-Box(Box(558)),
-Box(Box(559)),
-Box(Box(560)),
-Box(Box(561)),
-Box(Box(562)),
-Box(Box(563)),
-Box(Box(564)),
-Box(Box(565)),
-Box(Box(566)),
-Box(Box(567)),
-Box(Box(568)),
-Box(Box(569)),
-Box(Box(570)),
-Box(Box(571)),
-Box(Box(572)),
-Box(Box(573)),
-Box(Box(574)),
-Box(Box(575)),
-Box(Box(576)),
-Box(Box(577)),
-Box(Box(578)),
-Box(Box(579)),
-Box(Box(580)),
-Box(Box(581)),
-Box(Box(582)),
-Box(Box(583)),
-Box(Box(584)),
-Box(Box(585)),
-Box(Box(586)),
-Box(Box(587)),
-Box(Box(588)),
-Box(Box(589)),
-Box(Box(590)),
-Box(Box(591)),
-Box(Box(592)),
-Box(Box(593)),
-Box(Box(594)),
-Box(Box(595)),
-Box(Box(596)),
-Box(Box(597)),
-Box(Box(598)),
-Box(Box(599)),
-Box(Box(600)),
-Box(Box(601)),
-Box(Box(602)),
-Box(Box(603)),
-Box(Box(604)),
-Box(Box(605)),
-Box(Box(606)),
-Box(Box(607)),
-Box(Box(608)),
-Box(Box(609)),
-Box(Box(610)),
-Box(Box(611)),
-Box(Box(612)),
-Box(Box(613)),
-Box(Box(614)),
-Box(Box(615)),
-Box(Box(616)),
-Box(Box(617)),
-Box(Box(618)),
-Box(Box(619)),
-Box(Box(620)),
-Box(Box(621)),
-Box(Box(622)),
-Box(Box(623)),
-Box(Box(624)),
-Box(Box(625)),
-Box(Box(626)),
-Box(Box(627)),
-Box(Box(628)),
-Box(Box(629)),
-Box(Box(630)),
-Box(Box(631)),
-Box(Box(632)),
-Box(Box(633)),
-Box(Box(634)),
-Box(Box(635)),
-Box(Box(636)),
-Box(Box(637)),
-Box(Box(638)),
-Box(Box(639)),
-Box(Box(640)),
-Box(Box(641)),
-Box(Box(642)),
-Box(Box(643)),
-Box(Box(644)),
-Box(Box(645)),
-Box(Box(646)),
-Box(Box(647)),
-Box(Box(648)),
-Box(Box(649)),
-Box(Box(650)),
-Box(Box(651)),
-Box(Box(652)),
-Box(Box(653)),
-Box(Box(654)),
-Box(Box(655)),
-Box(Box(656)),
-Box(Box(657)),
-Box(Box(658)),
-Box(Box(659)),
-Box(Box(660)),
-Box(Box(661)),
-Box(Box(662)),
-Box(Box(663)),
-Box(Box(664)),
-Box(Box(665)),
-Box(Box(666)),
-Box(Box(667)),
-Box(Box(668)),
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-Box(Box(9692)),
-Box(Box(9693)),
-Box(Box(9694)),
-Box(Box(9695)),
-Box(Box(9696)),
-Box(Box(9697)),
-Box(Box(9698)),
-Box(Box(9699)),
-Box(Box(9700)),
-Box(Box(9701)),
-Box(Box(9702)),
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-Box(Box(9704)),
-Box(Box(9705)),
-Box(Box(9706)),
-Box(Box(9707)),
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-Box(Box(9720)),
-Box(Box(9721)),
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-Box(Box(9725)),
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-Box(Box(9780)),
-Box(Box(9781)),
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-Box(Box(9783)),
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-Box(Box(9788)),
-Box(Box(9789)),
-Box(Box(9790)),
-Box(Box(9791)),
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-Box(Box(9794)),
-Box(Box(9795)),
-Box(Box(9796)),
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-Box(Box(9799)),
-Box(Box(9800)),
-Box(Box(9801)),
-Box(Box(9802)),
-Box(Box(9803)),
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-Box(Box(9805)),
-Box(Box(9806)),
-Box(Box(9807)),
-Box(Box(9808)),
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-Box(Box(9811)),
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-Box(Box(9856)),
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-Box(Box(9860)),
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-Box(Box(9865)),
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-Box(Box(9867)),
-Box(Box(9868)),
-Box(Box(9869)),
-Box(Box(9870)),
-Box(Box(9871)),
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-Box(Box(9994)),
-Box(Box(9995)),
-Box(Box(9996)),
-Box(Box(9997)),
-Box(Box(9998)),
-Box(Box(9999)),
-];
-
-// 10,000 elements.
-const list2 = [
-Box(Box(0)),
-Box(Box(1)),
-Box(Box(2)),
-Box(Box(3)),
-Box(Box(4)),
-Box(Box(5)),
-Box(Box(6)),
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-Box(Box(212)),
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-Box(Box(215)),
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-Box(Box(221)),
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-Box(Box(225)),
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-Box(Box(230)),
-Box(Box(231)),
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-Box(Box(233)),
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-Box(Box(256)),
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-Box(Box(268)),
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-Box(Box(274)),
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-Box(Box(279)),
-Box(Box(280)),
-Box(Box(281)),
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-Box(Box(283)),
-Box(Box(284)),
-Box(Box(285)),
-Box(Box(286)),
-Box(Box(287)),
-Box(Box(288)),
-Box(Box(289)),
-Box(Box(290)),
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-Box(Box(292)),
-Box(Box(293)),
-Box(Box(294)),
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-Box(Box(297)),
-Box(Box(298)),
-Box(Box(299)),
-Box(Box(300)),
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-Box(Box(302)),
-Box(Box(303)),
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-Box(Box(305)),
-Box(Box(306)),
-Box(Box(307)),
-Box(Box(308)),
-Box(Box(309)),
-Box(Box(310)),
-Box(Box(311)),
-Box(Box(312)),
-Box(Box(313)),
-Box(Box(314)),
-Box(Box(315)),
-Box(Box(316)),
-Box(Box(317)),
-Box(Box(318)),
-Box(Box(319)),
-Box(Box(320)),
-Box(Box(321)),
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-Box(Box(323)),
-Box(Box(324)),
-Box(Box(325)),
-Box(Box(326)),
-Box(Box(327)),
-Box(Box(328)),
-Box(Box(329)),
-Box(Box(330)),
-Box(Box(331)),
-Box(Box(332)),
-Box(Box(333)),
-Box(Box(334)),
-Box(Box(335)),
-Box(Box(336)),
-Box(Box(337)),
-Box(Box(338)),
-Box(Box(339)),
-Box(Box(340)),
-Box(Box(341)),
-Box(Box(342)),
-Box(Box(343)),
-Box(Box(344)),
-Box(Box(345)),
-Box(Box(346)),
-Box(Box(347)),
-Box(Box(348)),
-Box(Box(349)),
-Box(Box(350)),
-Box(Box(351)),
-Box(Box(352)),
-Box(Box(353)),
-Box(Box(354)),
-Box(Box(355)),
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-Box(Box(357)),
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-Box(Box(360)),
-Box(Box(361)),
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-Box(Box(365)),
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-Box(Box(370)),
-Box(Box(371)),
-Box(Box(372)),
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-Box(Box(374)),
-Box(Box(375)),
-Box(Box(376)),
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-Box(Box(386)),
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-Box(Box(399)),
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-Box(Box(406)),
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-Box(Box(415)),
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-Box(Box(420)),
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-Box(Box(422)),
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-Box(Box(425)),
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-Box(Box(427)),
-Box(Box(428)),
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-Box(Box(430)),
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-Box(Box(433)),
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-Box(Box(435)),
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-Box(Box(440)),
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-Box(Box(451)),
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-Box(Box(453)),
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-Box(Box(455)),
-Box(Box(456)),
-Box(Box(457)),
-Box(Box(458)),
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-Box(Box(460)),
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-Box(Box(467)),
-Box(Box(468)),
-Box(Box(469)),
-Box(Box(470)),
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-Box(Box(475)),
-Box(Box(476)),
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-Box(Box(480)),
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-Box(Box(490)),
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-Box(Box(536)),
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-Box(Box(546)),
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-Box(Box(555)),
-Box(Box(556)),
-Box(Box(557)),
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-Box(Box(9593)),
-Box(Box(9594)),
-Box(Box(9595)),
-Box(Box(9596)),
-Box(Box(9597)),
-Box(Box(9598)),
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-Box(Box(9806)),
-Box(Box(9807)),
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-Box(Box(9809)),
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-Box(Box(9811)),
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-Box(Box(9819)),
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-Box(Box(9821)),
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-Box(Box(9858)),
-Box(Box(9859)),
-Box(Box(9860)),
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-Box(Box(9867)),
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-Box(Box(9871)),
-Box(Box(9872)),
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-Box(Box(9945)),
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-Box(Box(9947)),
-Box(Box(9948)),
-Box(Box(9949)),
-Box(Box(9950)),
-Box(Box(9951)),
-Box(Box(9952)),
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-Box(Box(9956)),
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-Box(Box(9959)),
-Box(Box(9960)),
-Box(Box(9961)),
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-Box(Box(9964)),
-Box(Box(9965)),
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-Box(Box(9967)),
-Box(Box(9968)),
-Box(Box(9969)),
-Box(Box(9970)),
-Box(Box(9971)),
-Box(Box(9972)),
-Box(Box(9973)),
-Box(Box(9974)),
-Box(Box(9975)),
-Box(Box(9976)),
-Box(Box(9977)),
-Box(Box(9978)),
-Box(Box(9979)),
-Box(Box(9980)),
-Box(Box(9981)),
-Box(Box(9982)),
-Box(Box(9983)),
-Box(Box(9984)),
-Box(Box(9985)),
-Box(Box(9986)),
-Box(Box(9987)),
-Box(Box(9988)),
-Box(Box(9989)),
-Box(Box(9990)),
-Box(Box(9991)),
-Box(Box(9992)),
-Box(Box(9993)),
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-Box(Box(9995)),
-Box(Box(9996)),
-Box(Box(9997)),
-Box(Box(9998)),
-Box(Box(9999)),
-];
-
-confuse(x) {
-  try { throw x; } catch (e) { return e; }
-}
-
-main() {
-  if (!identical(confuse(list1), confuse(list2))) {
-    throw new Exception("list1 !== list2");
-  }
-}
diff --git a/tests/language_2/cascade/cascade2_test.dart b/tests/language_2/cascade/cascade2_test.dart
deleted file mode 100644
index 3bd961eff24..00000000000
--- a/tests/language_2/cascade/cascade2_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to hit an assertion in the
-// container tracer visitor in the presence of cascaded calls.
-
-import "package:expect/expect.dart";
-
-class A {
-  var foo;
-
-  add(list) {
-    foo = list;
-    list.add(2.5);
-    return this;
-  }
-
-  call(arg) => arg;
-}
-
-main() {
-  var foo = <dynamic>[42, 0];
-  var a = new A();
-  var bar = a..add(foo)('WHAT');
-  a..foo[0] = new Object();
-  Expect.throwsNoSuchMethodError(() => foo[0] + 2);
-}
diff --git a/tests/language_2/cascade/cascade3_test.dart b/tests/language_2/cascade/cascade3_test.dart
deleted file mode 100644
index 33278315fa6..00000000000
--- a/tests/language_2/cascade/cascade3_test.dart
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test cascades, issues 7494 (vm), 7689 (dart2js).
-
-main() {
-  var a = new Element(null);
-  Expect.equals(1, a.path0.length);
-  Expect.equals(a, a.path0[0]);
-
-  // Issue 7693: e0 ? e1 : e2..f() parses as (e0 ? e1 : e2)..f().
-  Expect.equals(2, a.path1.length);
-  Expect.equals(a, a.path1[0]);
-  Expect.equals(a, a.path1[1]);
-
-  Expect.equals(1, a.path2.length); // NPE.
-
-  var b = new Element(a);
-  Expect.equals(2, b.path0.length);
-  Expect.equals(a, b.path0[0]);
-  Expect.equals(b, b.path0[1]);
-
-  Expect.equals(3, b.path1.length);
-  Expect.equals(a, b.path1[0]);
-  Expect.equals(a, b.path1[1]);
-  Expect.equals(b, b.path1[2]);
-
-  Expect.equals(2, b.path2.length); // NPE.
-
-  // Regression test for dartdevc comma expressions (js_ast printer did not
-  // generate parentheses around the comma expression).
-  var expectedList = [3, 2, 1];
-  for (var actual in expectedList.toList()..sort()) {
-    Expect.equals(
-        expectedList.removeLast(), actual, "list items should be sorted");
-  }
-}
-
-class Element {
-  final Element parent;
-
-  Element(this.parent);
-
-  List<Element> get path0 {
-    if (parent == null) {
-      return <Element>[this];
-    } else {
-      return parent.path0..add(this);
-    }
-  }
-
-  List<Element> get path1 {
-    return (parent == null) ? <Element>[this] : parent.path1
-      ..add(this);
-  }
-
-  List<Element> get path2 {
-    return (parent == null) ? <Element>[this] : (parent.path2..add(this));
-  }
-}
diff --git a/tests/language_2/cascade/cascade_test.dart b/tests/language_2/cascade/cascade_test.dart
deleted file mode 100644
index d8aea40ec24..00000000000
--- a/tests/language_2/cascade/cascade_test.dart
+++ /dev/null
@@ -1,101 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test cascades.
-
-class A {
-  int x;
-  int y;
-
-  A(this.x, this.y);
-
-  A setX(int x) {
-    this.x = x;
-    return this;
-  }
-
-  void setY(int y) {
-    this.y = y;
-  }
-
-  Function swap() {
-    int tmp = x;
-    x = y;
-    y = tmp;
-    return this.swap;
-  }
-
-  void check(int x, int y) {
-    Expect.equals(x, this.x);
-    Expect.equals(y, this.y);
-  }
-
-  operator [](var i) {
-    if (i == 0) return x;
-    if (i == 1) return y;
-    if (i == "swap") return this.swap;
-    return null;
-  }
-
-  operator []=(int i, int value) {
-    if (i == 0) {
-      x = value;
-    } else if (i == 1) {
-      y = value;
-    }
-  }
-
-  /**
-   * A pseudo-keyword.
-   */
-  import() {
-    x++;
-  }
-}
-
-main() {
-  A a = new A(1, 2);
-  a
-    ..check(1, 2)
-    ..swap()
-    ..check(2, 1)
-    ..x = 4
-    ..y = 9
-    ..check(4, 9)
-    ..setX(10)
-    ..check(10, 9)
-    ..y = 5
-    ..check(10, 5)
-    ..swap()()()
-    ..check(5, 10)
-    ..[0] = 2
-    ..check(2, 10)
-    ..setX(10).setY(3)
-    ..check(10, 3)
-    ..setX(7)["swap"]()
-    ..check(3, 7)
-    ..import()
-    ..check(4, 7)
-    ..["swap"]()()()
-    ..check(7, 4);
-  a.check(7, 4);
-  a..(42);
-  // ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] Expected an identifier, but got ''.
-  // ^
-  // [cfe] Expected an identifier, but got '('.
-  a..37;
-  // ^^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] Expected an identifier, but got '37'.
-  a.."foo";
-  // ^^^^^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] Expected an identifier, but got '"foo"'.
-}
diff --git a/tests/language_2/cascade/in_expression_function_test.dart b/tests/language_2/cascade/in_expression_function_test.dart
deleted file mode 100644
index 3d67d5642d1..00000000000
--- a/tests/language_2/cascade/in_expression_function_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing throw statement
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-makeMap() => new Map()
-  ..[3] = 4
-  ..[0] = 11;
-
-class MyClass {
-  foo() => this
-    ..bar(3)
-    ..baz(4);
-  bar(x) => x;
-  baz(y) => y * 2;
-}
-
-main() {
-  var o = new MyClass();
-  Expect.equals(o.foo(), o);
-  var g = makeMap();
-  Expect.equals(g[3], 4);
-  Expect.equals(g[0], 11);
-}
diff --git a/tests/language_2/cascade/in_initializer_list_test.dart b/tests/language_2/cascade/in_initializer_list_test.dart
deleted file mode 100644
index d9b2f53b273..00000000000
--- a/tests/language_2/cascade/in_initializer_list_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  foo() {}
-  bar() {}
-}
-
-class B {
-  var x;
-  final y;
-
-  B(a)
-      : x = a
-          ..foo()
-          ..bar(),
-        y = a
-          ..foo()
-          ..bar() {}
-}
-
-main() {
-  var a = new A(), b = new B(a);
-  Expect.equals(a, b.x);
-  Expect.equals(a, b.y);
-}
diff --git a/tests/language_2/cascade/nested_test.dart b/tests/language_2/cascade/nested_test.dart
deleted file mode 100644
index 60ef44abb86..00000000000
--- a/tests/language_2/cascade/nested_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Foo {
-  int x;
-}
-
-class Bar {
-  Foo foo;
-  int y;
-}
-
-main() {
-  var bar = new Bar()
-    ..foo = (new Foo()..x = 42)
-    ..y = 38;
-  Expect.isTrue(bar is Bar);
-  Expect.isTrue(bar.foo is Foo);
-  Expect.equals(bar.foo.x, 42);
-  Expect.equals(bar.y, 38);
-}
diff --git a/tests/language_2/cascade/on_static_field_test.dart b/tests/language_2/cascade/on_static_field_test.dart
deleted file mode 100644
index 05391e8dffd..00000000000
--- a/tests/language_2/cascade/on_static_field_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-final List<String> list = []..add("foo")..add("bar")..add("baz");
-
-main() {
-  print(list);
-}
diff --git a/tests/language_2/cascade/precedence_test.dart b/tests/language_2/cascade/precedence_test.dart
deleted file mode 100644
index d6bc54d998b..00000000000
--- a/tests/language_2/cascade/precedence_test.dart
+++ /dev/null
@@ -1,185 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  int value;
-  A(this.value);
-  void set(int value) {
-    this.value = value;
-  }
-
-  int get() => value;
-  int operator [](int index) => value + index;
-  void operator []=(int index, int newValue) {
-    value += -index + newValue;
-  }
-
-  void test(int expected) {
-    Expect.equals(expected, value);
-  }
-
-  Function limp(int n) {
-    if (n == 0) return set;
-    return () => limp(n - 1);
-  }
-
-  A get self => this;
-  A operator +(A other) {
-    this.value += other.value;
-    return this;
-  }
-}
-
-class Box {
-  A value;
-  Box(this.value);
-  A operator [](int pos) => value;
-  void operator []=(int pos, A a) {
-    value = a;
-  }
-
-  A get x => value;
-  void set x(A a) {
-    value = a;
-  }
-}
-
-// Subset of grammar being tested.
-//
-// expression:
-//       assignableExpression assignmentOperator expression
-//     | conditionalExpression cascadeSection*
-//     ;
-// expressionWithoutCascade:
-//       assignableExpression assignmentOperator expressionWithoutCascade
-//     | conditionalExpression
-//     ;
-// expressionList:
-//       expression (',' expression)*
-//     ;
-// assignableExpression:
-//       primary (arguments* assignableSelector)+
-//     | super assignableSelector
-//     | identifier
-//     ;
-// conditionalExpression:
-//     logicalOrExpression ('?' expressionWithoutCascade ':' expressionWithoutCascade)?
-//     ;
-// primary:
-//       thisExpression
-//     | super assignableSelector
-//     | functionExpression
-//     | literal
-//     | identifier
-//     | newExpression
-//     | constObjectExpression
-//     | '(' expression ')'
-//     ;
-// assignableSelector:
-//       '[' expression ']'
-//     | '.' identifier
-//     ;
-//
-// In words:
-//  An assignableExpression is either a variable or something ending in
-//  [expression] or .identifier.
-
-main() {
-  A a = new A(42);
-  A original = a;
-  A b = new A(87);
-  fa() => a;
-  Box box = new Box(a);
-  // Different expressions on the left-hand side of '..'.
-  //  conditionalExpression >> postfixExpression > primary selector*
-  Expect.equals(
-      a,
-      a
-        ..set(37)
-        ..get());
-  a.test(37);
-  Expect.equals(
-      a,
-      fa()
-        ..set(42)
-        ..get());
-  a.test(42);
-  Expect.equals(
-      a,
-      box.x
-        ..set(37)
-        ..get());
-  a.test(37);
-  // '..' binds to 'b + a', i.e., to the 'b' object, not to 'a'.
-  Expect.equals(
-      b,
-      b + a
-        ..test(124)
-        ..set(117)
-        ..get());
-  b.test(117);
-  a.test(37);
-
-  // expression :: conditionalExpression cascadeSection
-  // and conditionalExpression ends in expressionWithoutCascade.
-  // I.e., '..' binds to the entire condition expression, not to 'b'.
-  (a.value == 37) ? a : b
-    ..set(42);
-  a.test(42);
-
-  // This binds .. to 'a', not 'c=a', and performs assignment after reading
-  // c.get().
-  A c = new A(21);
-  c = a..set(c.get()); // FAILING.
-  Expect.equals(a, c);
-  Expect.equals(original, a);
-  a.test(21); // Fails as 42 if above is parsed as (c = a)..set(c.get()).
-
-  // Should be parsed as (box..x = (c = a))..x.test(21).
-  c = null;
-  box
-    ..x = c = a
-    ..x.test(21);
-  c.test(21);
-  // Other variants
-  c = null;
-  box
-    ..x = c = (a..test(21))
-    ..x.test(21);
-  c.test(21);
-
-  c = null;
-  box
-    ..x = (c = a..test(21))
-    ..x.test(21);
-  c.test(21);
-
-  // Should work the same:
-  (a..set(42))..test(42);
-  a
-    ..set(21)
-    ..test(21);
-
-  c = null;
-  Box originalBox = box;
-  // Should parse as:
-  // box = (box..x = (a.value == 21 ? b : c)..x.test(117));
-  box = box
-    ..x = a.value == 21 ? b : c
-    ..x.test(117);
-  Expect.equals(originalBox, box);
-  Expect.equals(box.value, b);
-
-  // New cascades are allowed inside an expressionWithoutCascade if properly
-  // delimited.
-  box
-    ..x = (a
-      ..set(42)
-      ..test(42))
-    ..x.test(42);
-}
diff --git a/tests/language_2/cascade/runtime_test.dart b/tests/language_2/cascade/runtime_test.dart
deleted file mode 100644
index 753d6fd68e2..00000000000
--- a/tests/language_2/cascade/runtime_test.dart
+++ /dev/null
@@ -1,93 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-// Test cascades.
-
-class A {
-  int x;
-  int y;
-
-  A(this.x, this.y);
-
-  A setX(int x) {
-    this.x = x;
-    return this;
-  }
-
-  void setY(int y) {
-    this.y = y;
-  }
-
-  Function swap() {
-    int tmp = x;
-    x = y;
-    y = tmp;
-    return this.swap;
-  }
-
-  void check(int x, int y) {
-    Expect.equals(x, this.x);
-    Expect.equals(y, this.y);
-  }
-
-  operator [](var i) {
-    if (i == 0) return x;
-    if (i == 1) return y;
-    if (i == "swap") return this.swap;
-    return null;
-  }
-
-  operator []=(int i, int value) {
-    if (i == 0) {
-      x = value;
-    } else if (i == 1) {
-      y = value;
-    }
-  }
-
-  /**
-   * A pseudo-keyword.
-   */
-  import() {
-    x++;
-  }
-}
-
-main() {
-  A a = new A(1, 2);
-  a
-    ..check(1, 2)
-    ..swap()
-    ..check(2, 1)
-    ..x = 4
-    ..y = 9
-    ..check(4, 9)
-    ..setX(10)
-    ..check(10, 9)
-    ..y = 5
-    ..check(10, 5)
-    ..swap()()()
-    ..check(5, 10)
-    ..[0] = 2
-    ..check(2, 10)
-    ..setX(10).setY(3)
-    ..check(10, 3)
-    ..setX(7)["swap"]()
-    ..check(3, 7)
-    ..import()
-    ..check(4, 7)
-    ..["swap"]()()()
-    ..check(7, 4);
-  a.check(7, 4);
-
-
-
-}
diff --git a/tests/language_2/class/additional_interface_adds_optional_args_concrete_subclass_test.dart b/tests/language_2/class/additional_interface_adds_optional_args_concrete_subclass_test.dart
deleted file mode 100644
index cb3787eada2..00000000000
--- a/tests/language_2/class/additional_interface_adds_optional_args_concrete_subclass_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  void foo() {}
-}
-
-abstract class I {
-  void foo([x]);
-}
-
-abstract class B extends A implements I {
-  // If this class were concrete, there would be a problem, since `new
-  // B().foo(42)` would be statically allowed, but would lead to invalid
-  // arguments being passed to A.foo.  But since the class is abstract, there is
-  // no problem.
-}
-
-class C extends B {
-//    ^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_IMPLEMENTATION_OVERRIDE
-// [cfe] The implementation of 'foo' in the non-abstract class 'C' does not conform to its interface.
-
-  // However, there is a problem here because this class is concrete and doesn't
-  // override foo.
-}
-
-void f(B b) {
-  b.foo();
-}
-
-main() {
-  f(new C());
-}
diff --git a/tests/language_2/class/class_test.dart b/tests/language_2/class/class_test.dart
deleted file mode 100644
index 5898970d84f..00000000000
--- a/tests/language_2/class/class_test.dart
+++ /dev/null
@@ -1,179 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Tests basic classes and methods.
-class ClassTest {
-  ClassTest() {}
-
-  static testMain() {
-    var test = new ClassTest();
-    test.testSuperCalls();
-    test.testVirtualCalls();
-    test.testStaticCalls();
-    test.testInheritedField();
-    test.testMemberRefInClosure();
-    test.testFactory();
-    test.testNamedConstructors();
-    test.testDefaultImplementation();
-    test.testFunctionParameter((int a) {
-      return a;
-    });
-  }
-
-  testFunctionParameter(int func(int a)) {
-    Expect.equals(1, func(1));
-  }
-
-  testSuperCalls() {
-    var sub = new Sub();
-    Expect.equals(43, sub.methodX());
-    Expect.equals(84, sub.methodK());
-  }
-
-  testVirtualCalls() {
-    var sub = new Sub();
-    Expect.equals(41, sub.method2());
-    Expect.equals(41, sub.method3());
-  }
-
-  testStaticCalls() {
-    var sub = new Sub();
-    Expect.equals(-42, Sub.method4());
-    Expect.equals(-41, sub.method5());
-  }
-
-  testInheritedField() {
-    var sub = new Sub();
-    Expect.equals(42, sub.method6());
-  }
-
-  testMemberRefInClosure() {
-    var sub = new Sub();
-    Expect.equals(1, sub.closureRef());
-    Expect.equals(2, sub.closureRef());
-    // Make sure it is actually on the object, not the global 'this'.
-    sub = new Sub();
-    Expect.equals(1, sub.closureRef());
-    Expect.equals(2, sub.closureRef());
-  }
-
-  testFactory() {
-    var sup = new Sup.named();
-    Expect.equals(43, sup.methodX());
-    Expect.equals(84, sup.methodK());
-  }
-
-  testNamedConstructors() {
-    var sup = new Sup.fromInt(4);
-    Expect.equals(4, sup.methodX());
-    Expect.equals(0, sup.methodK());
-  }
-
-  testDefaultImplementation() {
-    var x = new Inter(4);
-    Expect.equals(4, x.methodX());
-    Expect.equals(8, x.methodK());
-
-    x = new Inter.fromInt(4);
-    Expect.equals(4, x.methodX());
-    Expect.equals(0, x.methodK());
-
-    x = new Inter.named();
-    Expect.equals(43, x.methodX());
-    Expect.equals(84, x.methodK());
-
-    x = new Inter.factory();
-    Expect.equals(43, x.methodX());
-    Expect.equals(84, x.methodK());
-  }
-}
-
-abstract class Inter {
-  factory Inter.named() = Sup.named;
-  factory Inter.fromInt(int x) = Sup.fromInt;
-  factory Inter(int x) = Sup;
-  factory Inter.factory() = Sup.factory;
-  int methodX();
-  int methodK();
-  int x_;
-}
-
-class Sup implements Inter {
-  int x_;
-  int k_;
-
-  factory Sup.named() {
-    return new Sub();
-  }
-
-  factory Sup.factory() {
-    return new Sub();
-  }
-
-  Sup.fromInt(int x) {
-    x_ = x;
-    k_ = 0;
-  }
-
-  int methodX() {
-    return x_;
-  }
-
-  int methodK() {
-    return k_;
-  }
-
-  Sup(int x) : this.x_ = x {
-    k_ = x * 2;
-  }
-
-  int method2() {
-    return x_ - 1;
-  }
-}
-
-class Sub extends Sup {
-  int y_;
-
-  // Override
-  int methodX() {
-    return super.methodX() + 1;
-  }
-
-  int method3() {
-    return method2();
-  }
-
-  static int method4() {
-    return -42;
-  }
-
-  int method5() {
-    return method4() + 1;
-  }
-
-  int method6() {
-    return x_ + y_;
-  }
-
-  int closureRef() {
-    var f = () {
-      y_ += 1;
-      return y_;
-    };
-    return f();
-  }
-
-  Sub() : super(42) {
-    y_ = 0;
-  }
-}
-
-main() {
-  ClassTest.testMain();
-}
diff --git a/tests/language_2/class/classes_static_method_clash_test.dart b/tests/language_2/class/classes_static_method_clash_test.dart
deleted file mode 100644
index d1c91ac9c8a..00000000000
--- a/tests/language_2/class/classes_static_method_clash_test.dart
+++ /dev/null
@@ -1,8169 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// This methods needs a stub method (because it is used in Function.apply, where
-// we can't see all possible uses).
-// The stub-method(s) must not clash with other global names (like classes).
-foo({a: 499}) => a;
-
-bar(f) {
-  return f();
-  return null;
-}
-
-int confuse(x) {
-  if (new DateTime.now().millisecondsSinceEpoch == 42) confuse(x + 1);
-  return x;
-}
-
-main() {
-  Expect.equals(42, Function.apply(foo, [], {#a: 42}));
-  Expect.equals(499, Function.apply(foo, [], null));
-  print(objects[confuse(0)]);
-}
-
-/*
-The following code has been generated with the following script:
-
-get chars sync* {
-  for (int i = "a".codeUnitAt(0); i <= "z".codeUnitAt(0); i++) {
-    yield new String.fromCharCodes([i]);
-  }
-  for (int i = "A".codeUnitAt(0); i <= "Z".codeUnitAt(0); i++) {
-    yield new String.fromCharCodes([i]);
-  }
-}
-
-main() {
-  StringBuffer classes = new StringBuffer();
-  print("var objects = [");
-  for (String c1 in chars) {
-    for (String c2 in chars) {
-      print("  new C$c1$c2(),");
-      classes.writeln("class C$c1$c2{}");
-    }
-  }
-  print("];");
-  print(classes.toString());
-}
-*/
-
-var objects = [
-  new Caa(),
-  new Cab(),
-  new Cac(),
-  new Cad(),
-  new Cae(),
-  new Caf(),
-  new Cag(),
-  new Cah(),
-  new Cai(),
-  new Caj(),
-  new Cak(),
-  new Cal(),
-  new Cam(),
-  new Can(),
-  new Cao(),
-  new Cap(),
-  new Caq(),
-  new Car(),
-  new Cas(),
-  new Cat(),
-  new Cau(),
-  new Cav(),
-  new Caw(),
-  new Cax(),
-  new Cay(),
-  new Caz(),
-  new CaA(),
-  new CaB(),
-  new CaC(),
-  new CaD(),
-  new CaE(),
-  new CaF(),
-  new CaG(),
-  new CaH(),
-  new CaI(),
-  new CaJ(),
-  new CaK(),
-  new CaL(),
-  new CaM(),
-  new CaN(),
-  new CaO(),
-  new CaP(),
-  new CaQ(),
-  new CaR(),
-  new CaS(),
-  new CaT(),
-  new CaU(),
-  new CaV(),
-  new CaW(),
-  new CaX(),
-  new CaY(),
-  new CaZ(),
-  new Cba(),
-  new Cbb(),
-  new Cbc(),
-  new Cbd(),
-  new Cbe(),
-  new Cbf(),
-  new Cbg(),
-  new Cbh(),
-  new Cbi(),
-  new Cbj(),
-  new Cbk(),
-  new Cbl(),
-  new Cbm(),
-  new Cbn(),
-  new Cbo(),
-  new Cbp(),
-  new Cbq(),
-  new Cbr(),
-  new Cbs(),
-  new Cbt(),
-  new Cbu(),
-  new Cbv(),
-  new Cbw(),
-  new Cbx(),
-  new Cby(),
-  new Cbz(),
-  new CbA(),
-  new CbB(),
-  new CbC(),
-  new CbD(),
-  new CbE(),
-  new CbF(),
-  new CbG(),
-  new CbH(),
-  new CbI(),
-  new CbJ(),
-  new CbK(),
-  new CbL(),
-  new CbM(),
-  new CbN(),
-  new CbO(),
-  new CbP(),
-  new CbQ(),
-  new CbR(),
-  new CbS(),
-  new CbT(),
-  new CbU(),
-  new CbV(),
-  new CbW(),
-  new CbX(),
-  new CbY(),
-  new CbZ(),
-  new Cca(),
-  new Ccb(),
-  new Ccc(),
-  new Ccd(),
-  new Cce(),
-  new Ccf(),
-  new Ccg(),
-  new Cch(),
-  new Cci(),
-  new Ccj(),
-  new Cck(),
-  new Ccl(),
-  new Ccm(),
-  new Ccn(),
-  new Cco(),
-  new Ccp(),
-  new Ccq(),
-  new Ccr(),
-  new Ccs(),
-  new Cct(),
-  new Ccu(),
-  new Ccv(),
-  new Ccw(),
-  new Ccx(),
-  new Ccy(),
-  new Ccz(),
-  new CcA(),
-  new CcB(),
-  new CcC(),
-  new CcD(),
-  new CcE(),
-  new CcF(),
-  new CcG(),
-  new CcH(),
-  new CcI(),
-  new CcJ(),
-  new CcK(),
-  new CcL(),
-  new CcM(),
-  new CcN(),
-  new CcO(),
-  new CcP(),
-  new CcQ(),
-  new CcR(),
-  new CcS(),
-  new CcT(),
-  new CcU(),
-  new CcV(),
-  new CcW(),
-  new CcX(),
-  new CcY(),
-  new CcZ(),
-  new Cda(),
-  new Cdb(),
-  new Cdc(),
-  new Cdd(),
-  new Cde(),
-  new Cdf(),
-  new Cdg(),
-  new Cdh(),
-  new Cdi(),
-  new Cdj(),
-  new Cdk(),
-  new Cdl(),
-  new Cdm(),
-  new Cdn(),
-  new Cdo(),
-  new Cdp(),
-  new Cdq(),
-  new Cdr(),
-  new Cds(),
-  new Cdt(),
-  new Cdu(),
-  new Cdv(),
-  new Cdw(),
-  new Cdx(),
-  new Cdy(),
-  new Cdz(),
-  new CdA(),
-  new CdB(),
-  new CdC(),
-  new CdD(),
-  new CdE(),
-  new CdF(),
-  new CdG(),
-  new CdH(),
-  new CdI(),
-  new CdJ(),
-  new CdK(),
-  new CdL(),
-  new CdM(),
-  new CdN(),
-  new CdO(),
-  new CdP(),
-  new CdQ(),
-  new CdR(),
-  new CdS(),
-  new CdT(),
-  new CdU(),
-  new CdV(),
-  new CdW(),
-  new CdX(),
-  new CdY(),
-  new CdZ(),
-  new Cea(),
-  new Ceb(),
-  new Cec(),
-  new Ced(),
-  new Cee(),
-  new Cef(),
-  new Ceg(),
-  new Ceh(),
-  new Cei(),
-  new Cej(),
-  new Cek(),
-  new Cel(),
-  new Cem(),
-  new Cen(),
-  new Ceo(),
-  new Cep(),
-  new Ceq(),
-  new Cer(),
-  new Ces(),
-  new Cet(),
-  new Ceu(),
-  new Cev(),
-  new Cew(),
-  new Cex(),
-  new Cey(),
-  new Cez(),
-  new CeA(),
-  new CeB(),
-  new CeC(),
-  new CeD(),
-  new CeE(),
-  new CeF(),
-  new CeG(),
-  new CeH(),
-  new CeI(),
-  new CeJ(),
-  new CeK(),
-  new CeL(),
-  new CeM(),
-  new CeN(),
-  new CeO(),
-  new CeP(),
-  new CeQ(),
-  new CeR(),
-  new CeS(),
-  new CeT(),
-  new CeU(),
-  new CeV(),
-  new CeW(),
-  new CeX(),
-  new CeY(),
-  new CeZ(),
-  new Cfa(),
-  new Cfb(),
-  new Cfc(),
-  new Cfd(),
-  new Cfe(),
-  new Cff(),
-  new Cfg(),
-  new Cfh(),
-  new Cfi(),
-  new Cfj(),
-  new Cfk(),
-  new Cfl(),
-  new Cfm(),
-  new Cfn(),
-  new Cfo(),
-  new Cfp(),
-  new Cfq(),
-  new Cfr(),
-  new Cfs(),
-  new Cft(),
-  new Cfu(),
-  new Cfv(),
-  new Cfw(),
-  new Cfx(),
-  new Cfy(),
-  new Cfz(),
-  new CfA(),
-  new CfB(),
-  new CfC(),
-  new CfD(),
-  new CfE(),
-  new CfF(),
-  new CfG(),
-  new CfH(),
-  new CfI(),
-  new CfJ(),
-  new CfK(),
-  new CfL(),
-  new CfM(),
-  new CfN(),
-  new CfO(),
-  new CfP(),
-  new CfQ(),
-  new CfR(),
-  new CfS(),
-  new CfT(),
-  new CfU(),
-  new CfV(),
-  new CfW(),
-  new CfX(),
-  new CfY(),
-  new CfZ(),
-  new Cga(),
-  new Cgb(),
-  new Cgc(),
-  new Cgd(),
-  new Cge(),
-  new Cgf(),
-  new Cgg(),
-  new Cgh(),
-  new Cgi(),
-  new Cgj(),
-  new Cgk(),
-  new Cgl(),
-  new Cgm(),
-  new Cgn(),
-  new Cgo(),
-  new Cgp(),
-  new Cgq(),
-  new Cgr(),
-  new Cgs(),
-  new Cgt(),
-  new Cgu(),
-  new Cgv(),
-  new Cgw(),
-  new Cgx(),
-  new Cgy(),
-  new Cgz(),
-  new CgA(),
-  new CgB(),
-  new CgC(),
-  new CgD(),
-  new CgE(),
-  new CgF(),
-  new CgG(),
-  new CgH(),
-  new CgI(),
-  new CgJ(),
-  new CgK(),
-  new CgL(),
-  new CgM(),
-  new CgN(),
-  new CgO(),
-  new CgP(),
-  new CgQ(),
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-  new CTD(),
-  new CTE(),
-  new CTF(),
-  new CTG(),
-  new CTH(),
-  new CTI(),
-  new CTJ(),
-  new CTK(),
-  new CTL(),
-  new CTM(),
-  new CTN(),
-  new CTO(),
-  new CTP(),
-  new CTQ(),
-  new CTR(),
-  new CTS(),
-  new CTT(),
-  new CTU(),
-  new CTV(),
-  new CTW(),
-  new CTX(),
-  new CTY(),
-  new CTZ(),
-  new CUa(),
-  new CUb(),
-  new CUc(),
-  new CUd(),
-  new CUe(),
-  new CUf(),
-  new CUg(),
-  new CUh(),
-  new CUi(),
-  new CUj(),
-  new CUk(),
-  new CUl(),
-  new CUm(),
-  new CUn(),
-  new CUo(),
-  new CUp(),
-  new CUq(),
-  new CUr(),
-  new CUs(),
-  new CUt(),
-  new CUu(),
-  new CUv(),
-  new CUw(),
-  new CUx(),
-  new CUy(),
-  new CUz(),
-  new CUA(),
-  new CUB(),
-  new CUC(),
-  new CUD(),
-  new CUE(),
-  new CUF(),
-  new CUG(),
-  new CUH(),
-  new CUI(),
-  new CUJ(),
-  new CUK(),
-  new CUL(),
-  new CUM(),
-  new CUN(),
-  new CUO(),
-  new CUP(),
-  new CUQ(),
-  new CUR(),
-  new CUS(),
-  new CUT(),
-  new CUU(),
-  new CUV(),
-  new CUW(),
-  new CUX(),
-  new CUY(),
-  new CUZ(),
-  new CVa(),
-  new CVb(),
-  new CVc(),
-  new CVd(),
-  new CVe(),
-  new CVf(),
-  new CVg(),
-  new CVh(),
-  new CVi(),
-  new CVj(),
-  new CVk(),
-  new CVl(),
-  new CVm(),
-  new CVn(),
-  new CVo(),
-  new CVp(),
-  new CVq(),
-  new CVr(),
-  new CVs(),
-  new CVt(),
-  new CVu(),
-  new CVv(),
-  new CVw(),
-  new CVx(),
-  new CVy(),
-  new CVz(),
-  new CVA(),
-  new CVB(),
-  new CVC(),
-  new CVD(),
-  new CVE(),
-  new CVF(),
-  new CVG(),
-  new CVH(),
-  new CVI(),
-  new CVJ(),
-  new CVK(),
-  new CVL(),
-  new CVM(),
-  new CVN(),
-  new CVO(),
-  new CVP(),
-  new CVQ(),
-  new CVR(),
-  new CVS(),
-  new CVT(),
-  new CVU(),
-  new CVV(),
-  new CVW(),
-  new CVX(),
-  new CVY(),
-  new CVZ(),
-  new CWa(),
-  new CWb(),
-  new CWc(),
-  new CWd(),
-  new CWe(),
-  new CWf(),
-  new CWg(),
-  new CWh(),
-  new CWi(),
-  new CWj(),
-  new CWk(),
-  new CWl(),
-  new CWm(),
-  new CWn(),
-  new CWo(),
-  new CWp(),
-  new CWq(),
-  new CWr(),
-  new CWs(),
-  new CWt(),
-  new CWu(),
-  new CWv(),
-  new CWw(),
-  new CWx(),
-  new CWy(),
-  new CWz(),
-  new CWA(),
-  new CWB(),
-  new CWC(),
-  new CWD(),
-  new CWE(),
-  new CWF(),
-  new CWG(),
-  new CWH(),
-  new CWI(),
-  new CWJ(),
-  new CWK(),
-  new CWL(),
-  new CWM(),
-  new CWN(),
-  new CWO(),
-  new CWP(),
-  new CWQ(),
-  new CWR(),
-  new CWS(),
-  new CWT(),
-  new CWU(),
-  new CWV(),
-  new CWW(),
-  new CWX(),
-  new CWY(),
-  new CWZ(),
-  new CXa(),
-  new CXb(),
-  new CXc(),
-  new CXd(),
-  new CXe(),
-  new CXf(),
-  new CXg(),
-  new CXh(),
-  new CXi(),
-  new CXj(),
-  new CXk(),
-  new CXl(),
-  new CXm(),
-  new CXn(),
-  new CXo(),
-  new CXp(),
-  new CXq(),
-  new CXr(),
-  new CXs(),
-  new CXt(),
-  new CXu(),
-  new CXv(),
-  new CXw(),
-  new CXx(),
-  new CXy(),
-  new CXz(),
-  new CXA(),
-  new CXB(),
-  new CXC(),
-  new CXD(),
-  new CXE(),
-  new CXF(),
-  new CXG(),
-  new CXH(),
-  new CXI(),
-  new CXJ(),
-  new CXK(),
-  new CXL(),
-  new CXM(),
-  new CXN(),
-  new CXO(),
-  new CXP(),
-  new CXQ(),
-  new CXR(),
-  new CXS(),
-  new CXT(),
-  new CXU(),
-  new CXV(),
-  new CXW(),
-  new CXX(),
-  new CXY(),
-  new CXZ(),
-  new CYa(),
-  new CYb(),
-  new CYc(),
-  new CYd(),
-  new CYe(),
-  new CYf(),
-  new CYg(),
-  new CYh(),
-  new CYi(),
-  new CYj(),
-  new CYk(),
-  new CYl(),
-  new CYm(),
-  new CYn(),
-  new CYo(),
-  new CYp(),
-  new CYq(),
-  new CYr(),
-  new CYs(),
-  new CYt(),
-  new CYu(),
-  new CYv(),
-  new CYw(),
-  new CYx(),
-  new CYy(),
-  new CYz(),
-  new CYA(),
-  new CYB(),
-  new CYC(),
-  new CYD(),
-  new CYE(),
-  new CYF(),
-  new CYG(),
-  new CYH(),
-  new CYI(),
-  new CYJ(),
-  new CYK(),
-  new CYL(),
-  new CYM(),
-  new CYN(),
-  new CYO(),
-  new CYP(),
-  new CYQ(),
-  new CYR(),
-  new CYS(),
-  new CYT(),
-  new CYU(),
-  new CYV(),
-  new CYW(),
-  new CYX(),
-  new CYY(),
-  new CYZ(),
-  new CZa(),
-  new CZb(),
-  new CZc(),
-  new CZd(),
-  new CZe(),
-  new CZf(),
-  new CZg(),
-  new CZh(),
-  new CZi(),
-  new CZj(),
-  new CZk(),
-  new CZl(),
-  new CZm(),
-  new CZn(),
-  new CZo(),
-  new CZp(),
-  new CZq(),
-  new CZr(),
-  new CZs(),
-  new CZt(),
-  new CZu(),
-  new CZv(),
-  new CZw(),
-  new CZx(),
-  new CZy(),
-  new CZz(),
-  new CZA(),
-  new CZB(),
-  new CZC(),
-  new CZD(),
-  new CZE(),
-  new CZF(),
-  new CZG(),
-  new CZH(),
-  new CZI(),
-  new CZJ(),
-  new CZK(),
-  new CZL(),
-  new CZM(),
-  new CZN(),
-  new CZO(),
-  new CZP(),
-  new CZQ(),
-  new CZR(),
-  new CZS(),
-  new CZT(),
-  new CZU(),
-  new CZV(),
-  new CZW(),
-  new CZX(),
-  new CZY(),
-  new CZZ(),
-];
-
-class Caa {}
-
-class Cab {}
-
-class Cac {}
-
-class Cad {}
-
-class Cae {}
-
-class Caf {}
-
-class Cag {}
-
-class Cah {}
-
-class Cai {}
-
-class Caj {}
-
-class Cak {}
-
-class Cal {}
-
-class Cam {}
-
-class Can {}
-
-class Cao {}
-
-class Cap {}
-
-class Caq {}
-
-class Car {}
-
-class Cas {}
-
-class Cat {}
-
-class Cau {}
-
-class Cav {}
-
-class Caw {}
-
-class Cax {}
-
-class Cay {}
-
-class Caz {}
-
-class CaA {}
-
-class CaB {}
-
-class CaC {}
-
-class CaD {}
-
-class CaE {}
-
-class CaF {}
-
-class CaG {}
-
-class CaH {}
-
-class CaI {}
-
-class CaJ {}
-
-class CaK {}
-
-class CaL {}
-
-class CaM {}
-
-class CaN {}
-
-class CaO {}
-
-class CaP {}
-
-class CaQ {}
-
-class CaR {}
-
-class CaS {}
-
-class CaT {}
-
-class CaU {}
-
-class CaV {}
-
-class CaW {}
-
-class CaX {}
-
-class CaY {}
-
-class CaZ {}
-
-class Cba {}
-
-class Cbb {}
-
-class Cbc {}
-
-class Cbd {}
-
-class Cbe {}
-
-class Cbf {}
-
-class Cbg {}
-
-class Cbh {}
-
-class Cbi {}
-
-class Cbj {}
-
-class Cbk {}
-
-class Cbl {}
-
-class Cbm {}
-
-class Cbn {}
-
-class Cbo {}
-
-class Cbp {}
-
-class Cbq {}
-
-class Cbr {}
-
-class Cbs {}
-
-class Cbt {}
-
-class Cbu {}
-
-class Cbv {}
-
-class Cbw {}
-
-class Cbx {}
-
-class Cby {}
-
-class Cbz {}
-
-class CbA {}
-
-class CbB {}
-
-class CbC {}
-
-class CbD {}
-
-class CbE {}
-
-class CbF {}
-
-class CbG {}
-
-class CbH {}
-
-class CbI {}
-
-class CbJ {}
-
-class CbK {}
-
-class CbL {}
-
-class CbM {}
-
-class CbN {}
-
-class CbO {}
-
-class CbP {}
-
-class CbQ {}
-
-class CbR {}
-
-class CbS {}
-
-class CbT {}
-
-class CbU {}
-
-class CbV {}
-
-class CbW {}
-
-class CbX {}
-
-class CbY {}
-
-class CbZ {}
-
-class Cca {}
-
-class Ccb {}
-
-class Ccc {}
-
-class Ccd {}
-
-class Cce {}
-
-class Ccf {}
-
-class Ccg {}
-
-class Cch {}
-
-class Cci {}
-
-class Ccj {}
-
-class Cck {}
-
-class Ccl {}
-
-class Ccm {}
-
-class Ccn {}
-
-class Cco {}
-
-class Ccp {}
-
-class Ccq {}
-
-class Ccr {}
-
-class Ccs {}
-
-class Cct {}
-
-class Ccu {}
-
-class Ccv {}
-
-class Ccw {}
-
-class Ccx {}
-
-class Ccy {}
-
-class Ccz {}
-
-class CcA {}
-
-class CcB {}
-
-class CcC {}
-
-class CcD {}
-
-class CcE {}
-
-class CcF {}
-
-class CcG {}
-
-class CcH {}
-
-class CcI {}
-
-class CcJ {}
-
-class CcK {}
-
-class CcL {}
-
-class CcM {}
-
-class CcN {}
-
-class CcO {}
-
-class CcP {}
-
-class CcQ {}
-
-class CcR {}
-
-class CcS {}
-
-class CcT {}
-
-class CcU {}
-
-class CcV {}
-
-class CcW {}
-
-class CcX {}
-
-class CcY {}
-
-class CcZ {}
-
-class Cda {}
-
-class Cdb {}
-
-class Cdc {}
-
-class Cdd {}
-
-class Cde {}
-
-class Cdf {}
-
-class Cdg {}
-
-class Cdh {}
-
-class Cdi {}
-
-class Cdj {}
-
-class Cdk {}
-
-class Cdl {}
-
-class Cdm {}
-
-class Cdn {}
-
-class Cdo {}
-
-class Cdp {}
-
-class Cdq {}
-
-class Cdr {}
-
-class Cds {}
-
-class Cdt {}
-
-class Cdu {}
-
-class Cdv {}
-
-class Cdw {}
-
-class Cdx {}
-
-class Cdy {}
-
-class Cdz {}
-
-class CdA {}
-
-class CdB {}
-
-class CdC {}
-
-class CdD {}
-
-class CdE {}
-
-class CdF {}
-
-class CdG {}
-
-class CdH {}
-
-class CdI {}
-
-class CdJ {}
-
-class CdK {}
-
-class CdL {}
-
-class CdM {}
-
-class CdN {}
-
-class CdO {}
-
-class CdP {}
-
-class CdQ {}
-
-class CdR {}
-
-class CdS {}
-
-class CdT {}
-
-class CdU {}
-
-class CdV {}
-
-class CdW {}
-
-class CdX {}
-
-class CdY {}
-
-class CdZ {}
-
-class Cea {}
-
-class Ceb {}
-
-class Cec {}
-
-class Ced {}
-
-class Cee {}
-
-class Cef {}
-
-class Ceg {}
-
-class Ceh {}
-
-class Cei {}
-
-class Cej {}
-
-class Cek {}
-
-class Cel {}
-
-class Cem {}
-
-class Cen {}
-
-class Ceo {}
-
-class Cep {}
-
-class Ceq {}
-
-class Cer {}
-
-class Ces {}
-
-class Cet {}
-
-class Ceu {}
-
-class Cev {}
-
-class Cew {}
-
-class Cex {}
-
-class Cey {}
-
-class Cez {}
-
-class CeA {}
-
-class CeB {}
-
-class CeC {}
-
-class CeD {}
-
-class CeE {}
-
-class CeF {}
-
-class CeG {}
-
-class CeH {}
-
-class CeI {}
-
-class CeJ {}
-
-class CeK {}
-
-class CeL {}
-
-class CeM {}
-
-class CeN {}
-
-class CeO {}
-
-class CeP {}
-
-class CeQ {}
-
-class CeR {}
-
-class CeS {}
-
-class CeT {}
-
-class CeU {}
-
-class CeV {}
-
-class CeW {}
-
-class CeX {}
-
-class CeY {}
-
-class CeZ {}
-
-class Cfa {}
-
-class Cfb {}
-
-class Cfc {}
-
-class Cfd {}
-
-class Cfe {}
-
-class Cff {}
-
-class Cfg {}
-
-class Cfh {}
-
-class Cfi {}
-
-class Cfj {}
-
-class Cfk {}
-
-class Cfl {}
-
-class Cfm {}
-
-class Cfn {}
-
-class Cfo {}
-
-class Cfp {}
-
-class Cfq {}
-
-class Cfr {}
-
-class Cfs {}
-
-class Cft {}
-
-class Cfu {}
-
-class Cfv {}
-
-class Cfw {}
-
-class Cfx {}
-
-class Cfy {}
-
-class Cfz {}
-
-class CfA {}
-
-class CfB {}
-
-class CfC {}
-
-class CfD {}
-
-class CfE {}
-
-class CfF {}
-
-class CfG {}
-
-class CfH {}
-
-class CfI {}
-
-class CfJ {}
-
-class CfK {}
-
-class CfL {}
-
-class CfM {}
-
-class CfN {}
-
-class CfO {}
-
-class CfP {}
-
-class CfQ {}
-
-class CfR {}
-
-class CfS {}
-
-class CfT {}
-
-class CfU {}
-
-class CfV {}
-
-class CfW {}
-
-class CfX {}
-
-class CfY {}
-
-class CfZ {}
-
-class Cga {}
-
-class Cgb {}
-
-class Cgc {}
-
-class Cgd {}
-
-class Cge {}
-
-class Cgf {}
-
-class Cgg {}
-
-class Cgh {}
-
-class Cgi {}
-
-class Cgj {}
-
-class Cgk {}
-
-class Cgl {}
-
-class Cgm {}
-
-class Cgn {}
-
-class Cgo {}
-
-class Cgp {}
-
-class Cgq {}
-
-class Cgr {}
-
-class Cgs {}
-
-class Cgt {}
-
-class Cgu {}
-
-class Cgv {}
-
-class Cgw {}
-
-class Cgx {}
-
-class Cgy {}
-
-class Cgz {}
-
-class CgA {}
-
-class CgB {}
-
-class CgC {}
-
-class CgD {}
-
-class CgE {}
-
-class CgF {}
-
-class CgG {}
-
-class CgH {}
-
-class CgI {}
-
-class CgJ {}
-
-class CgK {}
-
-class CgL {}
-
-class CgM {}
-
-class CgN {}
-
-class CgO {}
-
-class CgP {}
-
-class CgQ {}
-
-class CgR {}
-
-class CgS {}
-
-class CgT {}
-
-class CgU {}
-
-class CgV {}
-
-class CgW {}
-
-class CgX {}
-
-class CgY {}
-
-class CgZ {}
-
-class Cha {}
-
-class Chb {}
-
-class Chc {}
-
-class Chd {}
-
-class Che {}
-
-class Chf {}
-
-class Chg {}
-
-class Chh {}
-
-class Chi {}
-
-class Chj {}
-
-class Chk {}
-
-class Chl {}
-
-class Chm {}
-
-class Chn {}
-
-class Cho {}
-
-class Chp {}
-
-class Chq {}
-
-class Chr {}
-
-class Chs {}
-
-class Cht {}
-
-class Chu {}
-
-class Chv {}
-
-class Chw {}
-
-class Chx {}
-
-class Chy {}
-
-class Chz {}
-
-class ChA {}
-
-class ChB {}
-
-class ChC {}
-
-class ChD {}
-
-class ChE {}
-
-class ChF {}
-
-class ChG {}
-
-class ChH {}
-
-class ChI {}
-
-class ChJ {}
-
-class ChK {}
-
-class ChL {}
-
-class ChM {}
-
-class ChN {}
-
-class ChO {}
-
-class ChP {}
-
-class ChQ {}
-
-class ChR {}
-
-class ChS {}
-
-class ChT {}
-
-class ChU {}
-
-class ChV {}
-
-class ChW {}
-
-class ChX {}
-
-class ChY {}
-
-class ChZ {}
-
-class Cia {}
-
-class Cib {}
-
-class Cic {}
-
-class Cid {}
-
-class Cie {}
-
-class Cif {}
-
-class Cig {}
-
-class Cih {}
-
-class Cii {}
-
-class Cij {}
-
-class Cik {}
-
-class Cil {}
-
-class Cim {}
-
-class Cin {}
-
-class Cio {}
-
-class Cip {}
-
-class Ciq {}
-
-class Cir {}
-
-class Cis {}
-
-class Cit {}
-
-class Ciu {}
-
-class Civ {}
-
-class Ciw {}
-
-class Cix {}
-
-class Ciy {}
-
-class Ciz {}
-
-class CiA {}
-
-class CiB {}
-
-class CiC {}
-
-class CiD {}
-
-class CiE {}
-
-class CiF {}
-
-class CiG {}
-
-class CiH {}
-
-class CiI {}
-
-class CiJ {}
-
-class CiK {}
-
-class CiL {}
-
-class CiM {}
-
-class CiN {}
-
-class CiO {}
-
-class CiP {}
-
-class CiQ {}
-
-class CiR {}
-
-class CiS {}
-
-class CiT {}
-
-class CiU {}
-
-class CiV {}
-
-class CiW {}
-
-class CiX {}
-
-class CiY {}
-
-class CiZ {}
-
-class Cja {}
-
-class Cjb {}
-
-class Cjc {}
-
-class Cjd {}
-
-class Cje {}
-
-class Cjf {}
-
-class Cjg {}
-
-class Cjh {}
-
-class Cji {}
-
-class Cjj {}
-
-class Cjk {}
-
-class Cjl {}
-
-class Cjm {}
-
-class Cjn {}
-
-class Cjo {}
-
-class Cjp {}
-
-class Cjq {}
-
-class Cjr {}
-
-class Cjs {}
-
-class Cjt {}
-
-class Cju {}
-
-class Cjv {}
-
-class Cjw {}
-
-class Cjx {}
-
-class Cjy {}
-
-class Cjz {}
-
-class CjA {}
-
-class CjB {}
-
-class CjC {}
-
-class CjD {}
-
-class CjE {}
-
-class CjF {}
-
-class CjG {}
-
-class CjH {}
-
-class CjI {}
-
-class CjJ {}
-
-class CjK {}
-
-class CjL {}
-
-class CjM {}
-
-class CjN {}
-
-class CjO {}
-
-class CjP {}
-
-class CjQ {}
-
-class CjR {}
-
-class CjS {}
-
-class CjT {}
-
-class CjU {}
-
-class CjV {}
-
-class CjW {}
-
-class CjX {}
-
-class CjY {}
-
-class CjZ {}
-
-class Cka {}
-
-class Ckb {}
-
-class Ckc {}
-
-class Ckd {}
-
-class Cke {}
-
-class Ckf {}
-
-class Ckg {}
-
-class Ckh {}
-
-class Cki {}
-
-class Ckj {}
-
-class Ckk {}
-
-class Ckl {}
-
-class Ckm {}
-
-class Ckn {}
-
-class Cko {}
-
-class Ckp {}
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-class Ckq {}
-
-class Ckr {}
-
-class Cks {}
-
-class Ckt {}
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-class Cku {}
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-class Ckv {}
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-class Ckw {}
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-class Ckx {}
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-class Cky {}
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-class Ckz {}
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-class CkA {}
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-class CkB {}
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-class CkC {}
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-class CkD {}
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-class CkE {}
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-class CkF {}
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-class CkG {}
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-class CkH {}
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-class CkI {}
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-class CkJ {}
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-class CkK {}
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-class CkL {}
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-class CkM {}
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-class CkN {}
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-class CkO {}
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-class CkP {}
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-class CkQ {}
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-class CkR {}
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-class CkS {}
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-class CkT {}
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-class CkU {}
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-class CkV {}
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-class CkW {}
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-class CkX {}
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-class CkY {}
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-class CkZ {}
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-class Cla {}
-
-class Clb {}
-
-class Clc {}
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-class Cld {}
-
-class Cle {}
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-class Clf {}
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-class Clg {}
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-class Clh {}
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-class Cli {}
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-class Clj {}
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-class Clk {}
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-class Cll {}
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-class Clm {}
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-class Cln {}
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-class Clo {}
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-class Clp {}
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-class Clq {}
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-class Clr {}
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-class Cls {}
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-class Clt {}
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-class Clu {}
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-class Clv {}
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-class Clw {}
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-class Clx {}
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-class Cly {}
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-class Clz {}
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-class ClA {}
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-class ClB {}
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-class ClC {}
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-class ClD {}
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-class ClE {}
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-class ClF {}
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-class ClG {}
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-class ClH {}
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-class ClI {}
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-class ClJ {}
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-class ClK {}
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-class ClL {}
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-class ClM {}
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-class ClN {}
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-class ClO {}
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-class ClP {}
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-class ClQ {}
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-class ClR {}
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-class ClS {}
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-class ClT {}
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-class ClU {}
-
-class ClV {}
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-class ClW {}
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-class ClX {}
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-class ClY {}
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-class ClZ {}
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-class Cma {}
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-class Cmb {}
-
-class Cmc {}
-
-class Cmd {}
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-class Cme {}
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-class Cmf {}
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-class Cmg {}
-
-class Cmh {}
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-class Cmi {}
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-class Cmj {}
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-class Cmk {}
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-class Cml {}
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-class Cmm {}
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-class Cmn {}
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-class Cmo {}
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-class Cmp {}
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-class Cmq {}
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-class Cmr {}
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-class Cms {}
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-class Cmt {}
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-class Cmu {}
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-class Cmv {}
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-class Cmw {}
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-class Cmx {}
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-class Cmy {}
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-class Cmz {}
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-class CmA {}
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-class CmB {}
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-class CmC {}
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-class CmD {}
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-class CmE {}
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-class CmF {}
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-class CmG {}
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-class CmH {}
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-class CmI {}
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-class CmJ {}
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-class CmK {}
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-class CmL {}
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-class CmM {}
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-class CmN {}
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-class CmO {}
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-class CmP {}
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-class CmQ {}
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-class CmR {}
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-class CmS {}
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-class CmT {}
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-class CmU {}
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-class CmV {}
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-class CmW {}
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-class CmX {}
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-class CmY {}
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-class CmZ {}
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-class Cna {}
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-class Cnb {}
-
-class Cnc {}
-
-class Cnd {}
-
-class Cne {}
-
-class Cnf {}
-
-class Cng {}
-
-class Cnh {}
-
-class Cni {}
-
-class Cnj {}
-
-class Cnk {}
-
-class Cnl {}
-
-class Cnm {}
-
-class Cnn {}
-
-class Cno {}
-
-class Cnp {}
-
-class Cnq {}
-
-class Cnr {}
-
-class Cns {}
-
-class Cnt {}
-
-class Cnu {}
-
-class Cnv {}
-
-class Cnw {}
-
-class Cnx {}
-
-class Cny {}
-
-class Cnz {}
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-class CnA {}
-
-class CnB {}
-
-class CnC {}
-
-class CnD {}
-
-class CnE {}
-
-class CnF {}
-
-class CnG {}
-
-class CnH {}
-
-class CnI {}
-
-class CnJ {}
-
-class CnK {}
-
-class CnL {}
-
-class CnM {}
-
-class CnN {}
-
-class CnO {}
-
-class CnP {}
-
-class CnQ {}
-
-class CnR {}
-
-class CnS {}
-
-class CnT {}
-
-class CnU {}
-
-class CnV {}
-
-class CnW {}
-
-class CnX {}
-
-class CnY {}
-
-class CnZ {}
-
-class Coa {}
-
-class Cob {}
-
-class Coc {}
-
-class Cod {}
-
-class Coe {}
-
-class Cof {}
-
-class Cog {}
-
-class Coh {}
-
-class Coi {}
-
-class Coj {}
-
-class Cok {}
-
-class Col {}
-
-class Com {}
-
-class Con {}
-
-class Coo {}
-
-class Cop {}
-
-class Coq {}
-
-class Cor {}
-
-class Cos {}
-
-class Cot {}
-
-class Cou {}
-
-class Cov {}
-
-class Cow {}
-
-class Cox {}
-
-class Coy {}
-
-class Coz {}
-
-class CoA {}
-
-class CoB {}
-
-class CoC {}
-
-class CoD {}
-
-class CoE {}
-
-class CoF {}
-
-class CoG {}
-
-class CoH {}
-
-class CoI {}
-
-class CoJ {}
-
-class CoK {}
-
-class CoL {}
-
-class CoM {}
-
-class CoN {}
-
-class CoO {}
-
-class CoP {}
-
-class CoQ {}
-
-class CoR {}
-
-class CoS {}
-
-class CoT {}
-
-class CoU {}
-
-class CoV {}
-
-class CoW {}
-
-class CoX {}
-
-class CoY {}
-
-class CoZ {}
-
-class Cpa {}
-
-class Cpb {}
-
-class Cpc {}
-
-class Cpd {}
-
-class Cpe {}
-
-class Cpf {}
-
-class Cpg {}
-
-class Cph {}
-
-class Cpi {}
-
-class Cpj {}
-
-class Cpk {}
-
-class Cpl {}
-
-class Cpm {}
-
-class Cpn {}
-
-class Cpo {}
-
-class Cpp {}
-
-class Cpq {}
-
-class Cpr {}
-
-class Cps {}
-
-class Cpt {}
-
-class Cpu {}
-
-class Cpv {}
-
-class Cpw {}
-
-class Cpx {}
-
-class Cpy {}
-
-class Cpz {}
-
-class CpA {}
-
-class CpB {}
-
-class CpC {}
-
-class CpD {}
-
-class CpE {}
-
-class CpF {}
-
-class CpG {}
-
-class CpH {}
-
-class CpI {}
-
-class CpJ {}
-
-class CpK {}
-
-class CpL {}
-
-class CpM {}
-
-class CpN {}
-
-class CpO {}
-
-class CpP {}
-
-class CpQ {}
-
-class CpR {}
-
-class CpS {}
-
-class CpT {}
-
-class CpU {}
-
-class CpV {}
-
-class CpW {}
-
-class CpX {}
-
-class CpY {}
-
-class CpZ {}
-
-class Cqa {}
-
-class Cqb {}
-
-class Cqc {}
-
-class Cqd {}
-
-class Cqe {}
-
-class Cqf {}
-
-class Cqg {}
-
-class Cqh {}
-
-class Cqi {}
-
-class Cqj {}
-
-class Cqk {}
-
-class Cql {}
-
-class Cqm {}
-
-class Cqn {}
-
-class Cqo {}
-
-class Cqp {}
-
-class Cqq {}
-
-class Cqr {}
-
-class Cqs {}
-
-class Cqt {}
-
-class Cqu {}
-
-class Cqv {}
-
-class Cqw {}
-
-class Cqx {}
-
-class Cqy {}
-
-class Cqz {}
-
-class CqA {}
-
-class CqB {}
-
-class CqC {}
-
-class CqD {}
-
-class CqE {}
-
-class CqF {}
-
-class CqG {}
-
-class CqH {}
-
-class CqI {}
-
-class CqJ {}
-
-class CqK {}
-
-class CqL {}
-
-class CqM {}
-
-class CqN {}
-
-class CqO {}
-
-class CqP {}
-
-class CqQ {}
-
-class CqR {}
-
-class CqS {}
-
-class CqT {}
-
-class CqU {}
-
-class CqV {}
-
-class CqW {}
-
-class CqX {}
-
-class CqY {}
-
-class CqZ {}
-
-class Cra {}
-
-class Crb {}
-
-class Crc {}
-
-class Crd {}
-
-class Cre {}
-
-class Crf {}
-
-class Crg {}
-
-class Crh {}
-
-class Cri {}
-
-class Crj {}
-
-class Crk {}
-
-class Crl {}
-
-class Crm {}
-
-class Crn {}
-
-class Cro {}
-
-class Crp {}
-
-class Crq {}
-
-class Crr {}
-
-class Crs {}
-
-class Crt {}
-
-class Cru {}
-
-class Crv {}
-
-class Crw {}
-
-class Crx {}
-
-class Cry {}
-
-class Crz {}
-
-class CrA {}
-
-class CrB {}
-
-class CrC {}
-
-class CrD {}
-
-class CrE {}
-
-class CrF {}
-
-class CrG {}
-
-class CrH {}
-
-class CrI {}
-
-class CrJ {}
-
-class CrK {}
-
-class CrL {}
-
-class CrM {}
-
-class CrN {}
-
-class CrO {}
-
-class CrP {}
-
-class CrQ {}
-
-class CrR {}
-
-class CrS {}
-
-class CrT {}
-
-class CrU {}
-
-class CrV {}
-
-class CrW {}
-
-class CrX {}
-
-class CrY {}
-
-class CrZ {}
-
-class Csa {}
-
-class Csb {}
-
-class Csc {}
-
-class Csd {}
-
-class Cse {}
-
-class Csf {}
-
-class Csg {}
-
-class Csh {}
-
-class Csi {}
-
-class Csj {}
-
-class Csk {}
-
-class Csl {}
-
-class Csm {}
-
-class Csn {}
-
-class Cso {}
-
-class Csp {}
-
-class Csq {}
-
-class Csr {}
-
-class Css {}
-
-class Cst {}
-
-class Csu {}
-
-class Csv {}
-
-class Csw {}
-
-class Csx {}
-
-class Csy {}
-
-class Csz {}
-
-class CsA {}
-
-class CsB {}
-
-class CsC {}
-
-class CsD {}
-
-class CsE {}
-
-class CsF {}
-
-class CsG {}
-
-class CsH {}
-
-class CsI {}
-
-class CsJ {}
-
-class CsK {}
-
-class CsL {}
-
-class CsM {}
-
-class CsN {}
-
-class CsO {}
-
-class CsP {}
-
-class CsQ {}
-
-class CsR {}
-
-class CsS {}
-
-class CsT {}
-
-class CsU {}
-
-class CsV {}
-
-class CsW {}
-
-class CsX {}
-
-class CsY {}
-
-class CsZ {}
-
-class Cta {}
-
-class Ctb {}
-
-class Ctc {}
-
-class Ctd {}
-
-class Cte {}
-
-class Ctf {}
-
-class Ctg {}
-
-class Cth {}
-
-class Cti {}
-
-class Ctj {}
-
-class Ctk {}
-
-class Ctl {}
-
-class Ctm {}
-
-class Ctn {}
-
-class Cto {}
-
-class Ctp {}
-
-class Ctq {}
-
-class Ctr {}
-
-class Cts {}
-
-class Ctt {}
-
-class Ctu {}
-
-class Ctv {}
-
-class Ctw {}
-
-class Ctx {}
-
-class Cty {}
-
-class Ctz {}
-
-class CtA {}
-
-class CtB {}
-
-class CtC {}
-
-class CtD {}
-
-class CtE {}
-
-class CtF {}
-
-class CtG {}
-
-class CtH {}
-
-class CtI {}
-
-class CtJ {}
-
-class CtK {}
-
-class CtL {}
-
-class CtM {}
-
-class CtN {}
-
-class CtO {}
-
-class CtP {}
-
-class CtQ {}
-
-class CtR {}
-
-class CtS {}
-
-class CtT {}
-
-class CtU {}
-
-class CtV {}
-
-class CtW {}
-
-class CtX {}
-
-class CtY {}
-
-class CtZ {}
-
-class Cua {}
-
-class Cub {}
-
-class Cuc {}
-
-class Cud {}
-
-class Cue {}
-
-class Cuf {}
-
-class Cug {}
-
-class Cuh {}
-
-class Cui {}
-
-class Cuj {}
-
-class Cuk {}
-
-class Cul {}
-
-class Cum {}
-
-class Cun {}
-
-class Cuo {}
-
-class Cup {}
-
-class Cuq {}
-
-class Cur {}
-
-class Cus {}
-
-class Cut {}
-
-class Cuu {}
-
-class Cuv {}
-
-class Cuw {}
-
-class Cux {}
-
-class Cuy {}
-
-class Cuz {}
-
-class CuA {}
-
-class CuB {}
-
-class CuC {}
-
-class CuD {}
-
-class CuE {}
-
-class CuF {}
-
-class CuG {}
-
-class CuH {}
-
-class CuI {}
-
-class CuJ {}
-
-class CuK {}
-
-class CuL {}
-
-class CuM {}
-
-class CuN {}
-
-class CuO {}
-
-class CuP {}
-
-class CuQ {}
-
-class CuR {}
-
-class CuS {}
-
-class CuT {}
-
-class CuU {}
-
-class CuV {}
-
-class CuW {}
-
-class CuX {}
-
-class CuY {}
-
-class CuZ {}
-
-class Cva {}
-
-class Cvb {}
-
-class Cvc {}
-
-class Cvd {}
-
-class Cve {}
-
-class Cvf {}
-
-class Cvg {}
-
-class Cvh {}
-
-class Cvi {}
-
-class Cvj {}
-
-class Cvk {}
-
-class Cvl {}
-
-class Cvm {}
-
-class Cvn {}
-
-class Cvo {}
-
-class Cvp {}
-
-class Cvq {}
-
-class Cvr {}
-
-class Cvs {}
-
-class Cvt {}
-
-class Cvu {}
-
-class Cvv {}
-
-class Cvw {}
-
-class Cvx {}
-
-class Cvy {}
-
-class Cvz {}
-
-class CvA {}
-
-class CvB {}
-
-class CvC {}
-
-class CvD {}
-
-class CvE {}
-
-class CvF {}
-
-class CvG {}
-
-class CvH {}
-
-class CvI {}
-
-class CvJ {}
-
-class CvK {}
-
-class CvL {}
-
-class CvM {}
-
-class CvN {}
-
-class CvO {}
-
-class CvP {}
-
-class CvQ {}
-
-class CvR {}
-
-class CvS {}
-
-class CvT {}
-
-class CvU {}
-
-class CvV {}
-
-class CvW {}
-
-class CvX {}
-
-class CvY {}
-
-class CvZ {}
-
-class Cwa {}
-
-class Cwb {}
-
-class Cwc {}
-
-class Cwd {}
-
-class Cwe {}
-
-class Cwf {}
-
-class Cwg {}
-
-class Cwh {}
-
-class Cwi {}
-
-class Cwj {}
-
-class Cwk {}
-
-class Cwl {}
-
-class Cwm {}
-
-class Cwn {}
-
-class Cwo {}
-
-class Cwp {}
-
-class Cwq {}
-
-class Cwr {}
-
-class Cws {}
-
-class Cwt {}
-
-class Cwu {}
-
-class Cwv {}
-
-class Cww {}
-
-class Cwx {}
-
-class Cwy {}
-
-class Cwz {}
-
-class CwA {}
-
-class CwB {}
-
-class CwC {}
-
-class CwD {}
-
-class CwE {}
-
-class CwF {}
-
-class CwG {}
-
-class CwH {}
-
-class CwI {}
-
-class CwJ {}
-
-class CwK {}
-
-class CwL {}
-
-class CwM {}
-
-class CwN {}
-
-class CwO {}
-
-class CwP {}
-
-class CwQ {}
-
-class CwR {}
-
-class CwS {}
-
-class CwT {}
-
-class CwU {}
-
-class CwV {}
-
-class CwW {}
-
-class CwX {}
-
-class CwY {}
-
-class CwZ {}
-
-class Cxa {}
-
-class Cxb {}
-
-class Cxc {}
-
-class Cxd {}
-
-class Cxe {}
-
-class Cxf {}
-
-class Cxg {}
-
-class Cxh {}
-
-class Cxi {}
-
-class Cxj {}
-
-class Cxk {}
-
-class Cxl {}
-
-class Cxm {}
-
-class Cxn {}
-
-class Cxo {}
-
-class Cxp {}
-
-class Cxq {}
-
-class Cxr {}
-
-class Cxs {}
-
-class Cxt {}
-
-class Cxu {}
-
-class Cxv {}
-
-class Cxw {}
-
-class Cxx {}
-
-class Cxy {}
-
-class Cxz {}
-
-class CxA {}
-
-class CxB {}
-
-class CxC {}
-
-class CxD {}
-
-class CxE {}
-
-class CxF {}
-
-class CxG {}
-
-class CxH {}
-
-class CxI {}
-
-class CxJ {}
-
-class CxK {}
-
-class CxL {}
-
-class CxM {}
-
-class CxN {}
-
-class CxO {}
-
-class CxP {}
-
-class CxQ {}
-
-class CxR {}
-
-class CxS {}
-
-class CxT {}
-
-class CxU {}
-
-class CxV {}
-
-class CxW {}
-
-class CxX {}
-
-class CxY {}
-
-class CxZ {}
-
-class Cya {}
-
-class Cyb {}
-
-class Cyc {}
-
-class Cyd {}
-
-class Cye {}
-
-class Cyf {}
-
-class Cyg {}
-
-class Cyh {}
-
-class Cyi {}
-
-class Cyj {}
-
-class Cyk {}
-
-class Cyl {}
-
-class Cym {}
-
-class Cyn {}
-
-class Cyo {}
-
-class Cyp {}
-
-class Cyq {}
-
-class Cyr {}
-
-class Cys {}
-
-class Cyt {}
-
-class Cyu {}
-
-class Cyv {}
-
-class Cyw {}
-
-class Cyx {}
-
-class Cyy {}
-
-class Cyz {}
-
-class CyA {}
-
-class CyB {}
-
-class CyC {}
-
-class CyD {}
-
-class CyE {}
-
-class CyF {}
-
-class CyG {}
-
-class CyH {}
-
-class CyI {}
-
-class CyJ {}
-
-class CyK {}
-
-class CyL {}
-
-class CyM {}
-
-class CyN {}
-
-class CyO {}
-
-class CyP {}
-
-class CyQ {}
-
-class CyR {}
-
-class CyS {}
-
-class CyT {}
-
-class CyU {}
-
-class CyV {}
-
-class CyW {}
-
-class CyX {}
-
-class CyY {}
-
-class CyZ {}
-
-class Cza {}
-
-class Czb {}
-
-class Czc {}
-
-class Czd {}
-
-class Cze {}
-
-class Czf {}
-
-class Czg {}
-
-class Czh {}
-
-class Czi {}
-
-class Czj {}
-
-class Czk {}
-
-class Czl {}
-
-class Czm {}
-
-class Czn {}
-
-class Czo {}
-
-class Czp {}
-
-class Czq {}
-
-class Czr {}
-
-class Czs {}
-
-class Czt {}
-
-class Czu {}
-
-class Czv {}
-
-class Czw {}
-
-class Czx {}
-
-class Czy {}
-
-class Czz {}
-
-class CzA {}
-
-class CzB {}
-
-class CzC {}
-
-class CzD {}
-
-class CzE {}
-
-class CzF {}
-
-class CzG {}
-
-class CzH {}
-
-class CzI {}
-
-class CzJ {}
-
-class CzK {}
-
-class CzL {}
-
-class CzM {}
-
-class CzN {}
-
-class CzO {}
-
-class CzP {}
-
-class CzQ {}
-
-class CzR {}
-
-class CzS {}
-
-class CzT {}
-
-class CzU {}
-
-class CzV {}
-
-class CzW {}
-
-class CzX {}
-
-class CzY {}
-
-class CzZ {}
-
-class CAa {}
-
-class CAb {}
-
-class CAc {}
-
-class CAd {}
-
-class CAe {}
-
-class CAf {}
-
-class CAg {}
-
-class CAh {}
-
-class CAi {}
-
-class CAj {}
-
-class CAk {}
-
-class CAl {}
-
-class CAm {}
-
-class CAn {}
-
-class CAo {}
-
-class CAp {}
-
-class CAq {}
-
-class CAr {}
-
-class CAs {}
-
-class CAt {}
-
-class CAu {}
-
-class CAv {}
-
-class CAw {}
-
-class CAx {}
-
-class CAy {}
-
-class CAz {}
-
-class CAA {}
-
-class CAB {}
-
-class CAC {}
-
-class CAD {}
-
-class CAE {}
-
-class CAF {}
-
-class CAG {}
-
-class CAH {}
-
-class CAI {}
-
-class CAJ {}
-
-class CAK {}
-
-class CAL {}
-
-class CAM {}
-
-class CAN {}
-
-class CAO {}
-
-class CAP {}
-
-class CAQ {}
-
-class CAR {}
-
-class CAS {}
-
-class CAT {}
-
-class CAU {}
-
-class CAV {}
-
-class CAW {}
-
-class CAX {}
-
-class CAY {}
-
-class CAZ {}
-
-class CBa {}
-
-class CBb {}
-
-class CBc {}
-
-class CBd {}
-
-class CBe {}
-
-class CBf {}
-
-class CBg {}
-
-class CBh {}
-
-class CBi {}
-
-class CBj {}
-
-class CBk {}
-
-class CBl {}
-
-class CBm {}
-
-class CBn {}
-
-class CBo {}
-
-class CBp {}
-
-class CBq {}
-
-class CBr {}
-
-class CBs {}
-
-class CBt {}
-
-class CBu {}
-
-class CBv {}
-
-class CBw {}
-
-class CBx {}
-
-class CBy {}
-
-class CBz {}
-
-class CBA {}
-
-class CBB {}
-
-class CBC {}
-
-class CBD {}
-
-class CBE {}
-
-class CBF {}
-
-class CBG {}
-
-class CBH {}
-
-class CBI {}
-
-class CBJ {}
-
-class CBK {}
-
-class CBL {}
-
-class CBM {}
-
-class CBN {}
-
-class CBO {}
-
-class CBP {}
-
-class CBQ {}
-
-class CBR {}
-
-class CBS {}
-
-class CBT {}
-
-class CBU {}
-
-class CBV {}
-
-class CBW {}
-
-class CBX {}
-
-class CBY {}
-
-class CBZ {}
-
-class CCa {}
-
-class CCb {}
-
-class CCc {}
-
-class CCd {}
-
-class CCe {}
-
-class CCf {}
-
-class CCg {}
-
-class CCh {}
-
-class CCi {}
-
-class CCj {}
-
-class CCk {}
-
-class CCl {}
-
-class CCm {}
-
-class CCn {}
-
-class CCo {}
-
-class CCp {}
-
-class CCq {}
-
-class CCr {}
-
-class CCs {}
-
-class CCt {}
-
-class CCu {}
-
-class CCv {}
-
-class CCw {}
-
-class CCx {}
-
-class CCy {}
-
-class CCz {}
-
-class CCA {}
-
-class CCB {}
-
-class CCC {}
-
-class CCD {}
-
-class CCE {}
-
-class CCF {}
-
-class CCG {}
-
-class CCH {}
-
-class CCI {}
-
-class CCJ {}
-
-class CCK {}
-
-class CCL {}
-
-class CCM {}
-
-class CCN {}
-
-class CCO {}
-
-class CCP {}
-
-class CCQ {}
-
-class CCR {}
-
-class CCS {}
-
-class CCT {}
-
-class CCU {}
-
-class CCV {}
-
-class CCW {}
-
-class CCX {}
-
-class CCY {}
-
-class CCZ {}
-
-class CDa {}
-
-class CDb {}
-
-class CDc {}
-
-class CDd {}
-
-class CDe {}
-
-class CDf {}
-
-class CDg {}
-
-class CDh {}
-
-class CDi {}
-
-class CDj {}
-
-class CDk {}
-
-class CDl {}
-
-class CDm {}
-
-class CDn {}
-
-class CDo {}
-
-class CDp {}
-
-class CDq {}
-
-class CDr {}
-
-class CDs {}
-
-class CDt {}
-
-class CDu {}
-
-class CDv {}
-
-class CDw {}
-
-class CDx {}
-
-class CDy {}
-
-class CDz {}
-
-class CDA {}
-
-class CDB {}
-
-class CDC {}
-
-class CDD {}
-
-class CDE {}
-
-class CDF {}
-
-class CDG {}
-
-class CDH {}
-
-class CDI {}
-
-class CDJ {}
-
-class CDK {}
-
-class CDL {}
-
-class CDM {}
-
-class CDN {}
-
-class CDO {}
-
-class CDP {}
-
-class CDQ {}
-
-class CDR {}
-
-class CDS {}
-
-class CDT {}
-
-class CDU {}
-
-class CDV {}
-
-class CDW {}
-
-class CDX {}
-
-class CDY {}
-
-class CDZ {}
-
-class CEa {}
-
-class CEb {}
-
-class CEc {}
-
-class CEd {}
-
-class CEe {}
-
-class CEf {}
-
-class CEg {}
-
-class CEh {}
-
-class CEi {}
-
-class CEj {}
-
-class CEk {}
-
-class CEl {}
-
-class CEm {}
-
-class CEn {}
-
-class CEo {}
-
-class CEp {}
-
-class CEq {}
-
-class CEr {}
-
-class CEs {}
-
-class CEt {}
-
-class CEu {}
-
-class CEv {}
-
-class CEw {}
-
-class CEx {}
-
-class CEy {}
-
-class CEz {}
-
-class CEA {}
-
-class CEB {}
-
-class CEC {}
-
-class CED {}
-
-class CEE {}
-
-class CEF {}
-
-class CEG {}
-
-class CEH {}
-
-class CEI {}
-
-class CEJ {}
-
-class CEK {}
-
-class CEL {}
-
-class CEM {}
-
-class CEN {}
-
-class CEO {}
-
-class CEP {}
-
-class CEQ {}
-
-class CER {}
-
-class CES {}
-
-class CET {}
-
-class CEU {}
-
-class CEV {}
-
-class CEW {}
-
-class CEX {}
-
-class CEY {}
-
-class CEZ {}
-
-class CFa {}
-
-class CFb {}
-
-class CFc {}
-
-class CFd {}
-
-class CFe {}
-
-class CFf {}
-
-class CFg {}
-
-class CFh {}
-
-class CFi {}
-
-class CFj {}
-
-class CFk {}
-
-class CFl {}
-
-class CFm {}
-
-class CFn {}
-
-class CFo {}
-
-class CFp {}
-
-class CFq {}
-
-class CFr {}
-
-class CFs {}
-
-class CFt {}
-
-class CFu {}
-
-class CFv {}
-
-class CFw {}
-
-class CFx {}
-
-class CFy {}
-
-class CFz {}
-
-class CFA {}
-
-class CFB {}
-
-class CFC {}
-
-class CFD {}
-
-class CFE {}
-
-class CFF {}
-
-class CFG {}
-
-class CFH {}
-
-class CFI {}
-
-class CFJ {}
-
-class CFK {}
-
-class CFL {}
-
-class CFM {}
-
-class CFN {}
-
-class CFO {}
-
-class CFP {}
-
-class CFQ {}
-
-class CFR {}
-
-class CFS {}
-
-class CFT {}
-
-class CFU {}
-
-class CFV {}
-
-class CFW {}
-
-class CFX {}
-
-class CFY {}
-
-class CFZ {}
-
-class CGa {}
-
-class CGb {}
-
-class CGc {}
-
-class CGd {}
-
-class CGe {}
-
-class CGf {}
-
-class CGg {}
-
-class CGh {}
-
-class CGi {}
-
-class CGj {}
-
-class CGk {}
-
-class CGl {}
-
-class CGm {}
-
-class CGn {}
-
-class CGo {}
-
-class CGp {}
-
-class CGq {}
-
-class CGr {}
-
-class CGs {}
-
-class CGt {}
-
-class CGu {}
-
-class CGv {}
-
-class CGw {}
-
-class CGx {}
-
-class CGy {}
-
-class CGz {}
-
-class CGA {}
-
-class CGB {}
-
-class CGC {}
-
-class CGD {}
-
-class CGE {}
-
-class CGF {}
-
-class CGG {}
-
-class CGH {}
-
-class CGI {}
-
-class CGJ {}
-
-class CGK {}
-
-class CGL {}
-
-class CGM {}
-
-class CGN {}
-
-class CGO {}
-
-class CGP {}
-
-class CGQ {}
-
-class CGR {}
-
-class CGS {}
-
-class CGT {}
-
-class CGU {}
-
-class CGV {}
-
-class CGW {}
-
-class CGX {}
-
-class CGY {}
-
-class CGZ {}
-
-class CHa {}
-
-class CHb {}
-
-class CHc {}
-
-class CHd {}
-
-class CHe {}
-
-class CHf {}
-
-class CHg {}
-
-class CHh {}
-
-class CHi {}
-
-class CHj {}
-
-class CHk {}
-
-class CHl {}
-
-class CHm {}
-
-class CHn {}
-
-class CHo {}
-
-class CHp {}
-
-class CHq {}
-
-class CHr {}
-
-class CHs {}
-
-class CHt {}
-
-class CHu {}
-
-class CHv {}
-
-class CHw {}
-
-class CHx {}
-
-class CHy {}
-
-class CHz {}
-
-class CHA {}
-
-class CHB {}
-
-class CHC {}
-
-class CHD {}
-
-class CHE {}
-
-class CHF {}
-
-class CHG {}
-
-class CHH {}
-
-class CHI {}
-
-class CHJ {}
-
-class CHK {}
-
-class CHL {}
-
-class CHM {}
-
-class CHN {}
-
-class CHO {}
-
-class CHP {}
-
-class CHQ {}
-
-class CHR {}
-
-class CHS {}
-
-class CHT {}
-
-class CHU {}
-
-class CHV {}
-
-class CHW {}
-
-class CHX {}
-
-class CHY {}
-
-class CHZ {}
-
-class CIa {}
-
-class CIb {}
-
-class CIc {}
-
-class CId {}
-
-class CIe {}
-
-class CIf {}
-
-class CIg {}
-
-class CIh {}
-
-class CIi {}
-
-class CIj {}
-
-class CIk {}
-
-class CIl {}
-
-class CIm {}
-
-class CIn {}
-
-class CIo {}
-
-class CIp {}
-
-class CIq {}
-
-class CIr {}
-
-class CIs {}
-
-class CIt {}
-
-class CIu {}
-
-class CIv {}
-
-class CIw {}
-
-class CIx {}
-
-class CIy {}
-
-class CIz {}
-
-class CIA {}
-
-class CIB {}
-
-class CIC {}
-
-class CID {}
-
-class CIE {}
-
-class CIF {}
-
-class CIG {}
-
-class CIH {}
-
-class CII {}
-
-class CIJ {}
-
-class CIK {}
-
-class CIL {}
-
-class CIM {}
-
-class CIN {}
-
-class CIO {}
-
-class CIP {}
-
-class CIQ {}
-
-class CIR {}
-
-class CIS {}
-
-class CIT {}
-
-class CIU {}
-
-class CIV {}
-
-class CIW {}
-
-class CIX {}
-
-class CIY {}
-
-class CIZ {}
-
-class CJa {}
-
-class CJb {}
-
-class CJc {}
-
-class CJd {}
-
-class CJe {}
-
-class CJf {}
-
-class CJg {}
-
-class CJh {}
-
-class CJi {}
-
-class CJj {}
-
-class CJk {}
-
-class CJl {}
-
-class CJm {}
-
-class CJn {}
-
-class CJo {}
-
-class CJp {}
-
-class CJq {}
-
-class CJr {}
-
-class CJs {}
-
-class CJt {}
-
-class CJu {}
-
-class CJv {}
-
-class CJw {}
-
-class CJx {}
-
-class CJy {}
-
-class CJz {}
-
-class CJA {}
-
-class CJB {}
-
-class CJC {}
-
-class CJD {}
-
-class CJE {}
-
-class CJF {}
-
-class CJG {}
-
-class CJH {}
-
-class CJI {}
-
-class CJJ {}
-
-class CJK {}
-
-class CJL {}
-
-class CJM {}
-
-class CJN {}
-
-class CJO {}
-
-class CJP {}
-
-class CJQ {}
-
-class CJR {}
-
-class CJS {}
-
-class CJT {}
-
-class CJU {}
-
-class CJV {}
-
-class CJW {}
-
-class CJX {}
-
-class CJY {}
-
-class CJZ {}
-
-class CKa {}
-
-class CKb {}
-
-class CKc {}
-
-class CKd {}
-
-class CKe {}
-
-class CKf {}
-
-class CKg {}
-
-class CKh {}
-
-class CKi {}
-
-class CKj {}
-
-class CKk {}
-
-class CKl {}
-
-class CKm {}
-
-class CKn {}
-
-class CKo {}
-
-class CKp {}
-
-class CKq {}
-
-class CKr {}
-
-class CKs {}
-
-class CKt {}
-
-class CKu {}
-
-class CKv {}
-
-class CKw {}
-
-class CKx {}
-
-class CKy {}
-
-class CKz {}
-
-class CKA {}
-
-class CKB {}
-
-class CKC {}
-
-class CKD {}
-
-class CKE {}
-
-class CKF {}
-
-class CKG {}
-
-class CKH {}
-
-class CKI {}
-
-class CKJ {}
-
-class CKK {}
-
-class CKL {}
-
-class CKM {}
-
-class CKN {}
-
-class CKO {}
-
-class CKP {}
-
-class CKQ {}
-
-class CKR {}
-
-class CKS {}
-
-class CKT {}
-
-class CKU {}
-
-class CKV {}
-
-class CKW {}
-
-class CKX {}
-
-class CKY {}
-
-class CKZ {}
-
-class CLa {}
-
-class CLb {}
-
-class CLc {}
-
-class CLd {}
-
-class CLe {}
-
-class CLf {}
-
-class CLg {}
-
-class CLh {}
-
-class CLi {}
-
-class CLj {}
-
-class CLk {}
-
-class CLl {}
-
-class CLm {}
-
-class CLn {}
-
-class CLo {}
-
-class CLp {}
-
-class CLq {}
-
-class CLr {}
-
-class CLs {}
-
-class CLt {}
-
-class CLu {}
-
-class CLv {}
-
-class CLw {}
-
-class CLx {}
-
-class CLy {}
-
-class CLz {}
-
-class CLA {}
-
-class CLB {}
-
-class CLC {}
-
-class CLD {}
-
-class CLE {}
-
-class CLF {}
-
-class CLG {}
-
-class CLH {}
-
-class CLI {}
-
-class CLJ {}
-
-class CLK {}
-
-class CLL {}
-
-class CLM {}
-
-class CLN {}
-
-class CLO {}
-
-class CLP {}
-
-class CLQ {}
-
-class CLR {}
-
-class CLS {}
-
-class CLT {}
-
-class CLU {}
-
-class CLV {}
-
-class CLW {}
-
-class CLX {}
-
-class CLY {}
-
-class CLZ {}
-
-class CMa {}
-
-class CMb {}
-
-class CMc {}
-
-class CMd {}
-
-class CMe {}
-
-class CMf {}
-
-class CMg {}
-
-class CMh {}
-
-class CMi {}
-
-class CMj {}
-
-class CMk {}
-
-class CMl {}
-
-class CMm {}
-
-class CMn {}
-
-class CMo {}
-
-class CMp {}
-
-class CMq {}
-
-class CMr {}
-
-class CMs {}
-
-class CMt {}
-
-class CMu {}
-
-class CMv {}
-
-class CMw {}
-
-class CMx {}
-
-class CMy {}
-
-class CMz {}
-
-class CMA {}
-
-class CMB {}
-
-class CMC {}
-
-class CMD {}
-
-class CME {}
-
-class CMF {}
-
-class CMG {}
-
-class CMH {}
-
-class CMI {}
-
-class CMJ {}
-
-class CMK {}
-
-class CML {}
-
-class CMM {}
-
-class CMN {}
-
-class CMO {}
-
-class CMP {}
-
-class CMQ {}
-
-class CMR {}
-
-class CMS {}
-
-class CMT {}
-
-class CMU {}
-
-class CMV {}
-
-class CMW {}
-
-class CMX {}
-
-class CMY {}
-
-class CMZ {}
-
-class CNa {}
-
-class CNb {}
-
-class CNc {}
-
-class CNd {}
-
-class CNe {}
-
-class CNf {}
-
-class CNg {}
-
-class CNh {}
-
-class CNi {}
-
-class CNj {}
-
-class CNk {}
-
-class CNl {}
-
-class CNm {}
-
-class CNn {}
-
-class CNo {}
-
-class CNp {}
-
-class CNq {}
-
-class CNr {}
-
-class CNs {}
-
-class CNt {}
-
-class CNu {}
-
-class CNv {}
-
-class CNw {}
-
-class CNx {}
-
-class CNy {}
-
-class CNz {}
-
-class CNA {}
-
-class CNB {}
-
-class CNC {}
-
-class CND {}
-
-class CNE {}
-
-class CNF {}
-
-class CNG {}
-
-class CNH {}
-
-class CNI {}
-
-class CNJ {}
-
-class CNK {}
-
-class CNL {}
-
-class CNM {}
-
-class CNN {}
-
-class CNO {}
-
-class CNP {}
-
-class CNQ {}
-
-class CNR {}
-
-class CNS {}
-
-class CNT {}
-
-class CNU {}
-
-class CNV {}
-
-class CNW {}
-
-class CNX {}
-
-class CNY {}
-
-class CNZ {}
-
-class COa {}
-
-class COb {}
-
-class COc {}
-
-class COd {}
-
-class COe {}
-
-class COf {}
-
-class COg {}
-
-class COh {}
-
-class COi {}
-
-class COj {}
-
-class COk {}
-
-class COl {}
-
-class COm {}
-
-class COn {}
-
-class COo {}
-
-class COp {}
-
-class COq {}
-
-class COr {}
-
-class COs {}
-
-class COt {}
-
-class COu {}
-
-class COv {}
-
-class COw {}
-
-class COx {}
-
-class COy {}
-
-class COz {}
-
-class COA {}
-
-class COB {}
-
-class COC {}
-
-class COD {}
-
-class COE {}
-
-class COF {}
-
-class COG {}
-
-class COH {}
-
-class COI {}
-
-class COJ {}
-
-class COK {}
-
-class COL {}
-
-class COM {}
-
-class CON {}
-
-class COO {}
-
-class COP {}
-
-class COQ {}
-
-class COR {}
-
-class COS {}
-
-class COT {}
-
-class COU {}
-
-class COV {}
-
-class COW {}
-
-class COX {}
-
-class COY {}
-
-class COZ {}
-
-class CPa {}
-
-class CPb {}
-
-class CPc {}
-
-class CPd {}
-
-class CPe {}
-
-class CPf {}
-
-class CPg {}
-
-class CPh {}
-
-class CPi {}
-
-class CPj {}
-
-class CPk {}
-
-class CPl {}
-
-class CPm {}
-
-class CPn {}
-
-class CPo {}
-
-class CPp {}
-
-class CPq {}
-
-class CPr {}
-
-class CPs {}
-
-class CPt {}
-
-class CPu {}
-
-class CPv {}
-
-class CPw {}
-
-class CPx {}
-
-class CPy {}
-
-class CPz {}
-
-class CPA {}
-
-class CPB {}
-
-class CPC {}
-
-class CPD {}
-
-class CPE {}
-
-class CPF {}
-
-class CPG {}
-
-class CPH {}
-
-class CPI {}
-
-class CPJ {}
-
-class CPK {}
-
-class CPL {}
-
-class CPM {}
-
-class CPN {}
-
-class CPO {}
-
-class CPP {}
-
-class CPQ {}
-
-class CPR {}
-
-class CPS {}
-
-class CPT {}
-
-class CPU {}
-
-class CPV {}
-
-class CPW {}
-
-class CPX {}
-
-class CPY {}
-
-class CPZ {}
-
-class CQa {}
-
-class CQb {}
-
-class CQc {}
-
-class CQd {}
-
-class CQe {}
-
-class CQf {}
-
-class CQg {}
-
-class CQh {}
-
-class CQi {}
-
-class CQj {}
-
-class CQk {}
-
-class CQl {}
-
-class CQm {}
-
-class CQn {}
-
-class CQo {}
-
-class CQp {}
-
-class CQq {}
-
-class CQr {}
-
-class CQs {}
-
-class CQt {}
-
-class CQu {}
-
-class CQv {}
-
-class CQw {}
-
-class CQx {}
-
-class CQy {}
-
-class CQz {}
-
-class CQA {}
-
-class CQB {}
-
-class CQC {}
-
-class CQD {}
-
-class CQE {}
-
-class CQF {}
-
-class CQG {}
-
-class CQH {}
-
-class CQI {}
-
-class CQJ {}
-
-class CQK {}
-
-class CQL {}
-
-class CQM {}
-
-class CQN {}
-
-class CQO {}
-
-class CQP {}
-
-class CQQ {}
-
-class CQR {}
-
-class CQS {}
-
-class CQT {}
-
-class CQU {}
-
-class CQV {}
-
-class CQW {}
-
-class CQX {}
-
-class CQY {}
-
-class CQZ {}
-
-class CRa {}
-
-class CRb {}
-
-class CRc {}
-
-class CRd {}
-
-class CRe {}
-
-class CRf {}
-
-class CRg {}
-
-class CRh {}
-
-class CRi {}
-
-class CRj {}
-
-class CRk {}
-
-class CRl {}
-
-class CRm {}
-
-class CRn {}
-
-class CRo {}
-
-class CRp {}
-
-class CRq {}
-
-class CRr {}
-
-class CRs {}
-
-class CRt {}
-
-class CRu {}
-
-class CRv {}
-
-class CRw {}
-
-class CRx {}
-
-class CRy {}
-
-class CRz {}
-
-class CRA {}
-
-class CRB {}
-
-class CRC {}
-
-class CRD {}
-
-class CRE {}
-
-class CRF {}
-
-class CRG {}
-
-class CRH {}
-
-class CRI {}
-
-class CRJ {}
-
-class CRK {}
-
-class CRL {}
-
-class CRM {}
-
-class CRN {}
-
-class CRO {}
-
-class CRP {}
-
-class CRQ {}
-
-class CRR {}
-
-class CRS {}
-
-class CRT {}
-
-class CRU {}
-
-class CRV {}
-
-class CRW {}
-
-class CRX {}
-
-class CRY {}
-
-class CRZ {}
-
-class CSa {}
-
-class CSb {}
-
-class CSc {}
-
-class CSd {}
-
-class CSe {}
-
-class CSf {}
-
-class CSg {}
-
-class CSh {}
-
-class CSi {}
-
-class CSj {}
-
-class CSk {}
-
-class CSl {}
-
-class CSm {}
-
-class CSn {}
-
-class CSo {}
-
-class CSp {}
-
-class CSq {}
-
-class CSr {}
-
-class CSs {}
-
-class CSt {}
-
-class CSu {}
-
-class CSv {}
-
-class CSw {}
-
-class CSx {}
-
-class CSy {}
-
-class CSz {}
-
-class CSA {}
-
-class CSB {}
-
-class CSC {}
-
-class CSD {}
-
-class CSE {}
-
-class CSF {}
-
-class CSG {}
-
-class CSH {}
-
-class CSI {}
-
-class CSJ {}
-
-class CSK {}
-
-class CSL {}
-
-class CSM {}
-
-class CSN {}
-
-class CSO {}
-
-class CSP {}
-
-class CSQ {}
-
-class CSR {}
-
-class CSS {}
-
-class CST {}
-
-class CSU {}
-
-class CSV {}
-
-class CSW {}
-
-class CSX {}
-
-class CSY {}
-
-class CSZ {}
-
-class CTa {}
-
-class CTb {}
-
-class CTc {}
-
-class CTd {}
-
-class CTe {}
-
-class CTf {}
-
-class CTg {}
-
-class CTh {}
-
-class CTi {}
-
-class CTj {}
-
-class CTk {}
-
-class CTl {}
-
-class CTm {}
-
-class CTn {}
-
-class CTo {}
-
-class CTp {}
-
-class CTq {}
-
-class CTr {}
-
-class CTs {}
-
-class CTt {}
-
-class CTu {}
-
-class CTv {}
-
-class CTw {}
-
-class CTx {}
-
-class CTy {}
-
-class CTz {}
-
-class CTA {}
-
-class CTB {}
-
-class CTC {}
-
-class CTD {}
-
-class CTE {}
-
-class CTF {}
-
-class CTG {}
-
-class CTH {}
-
-class CTI {}
-
-class CTJ {}
-
-class CTK {}
-
-class CTL {}
-
-class CTM {}
-
-class CTN {}
-
-class CTO {}
-
-class CTP {}
-
-class CTQ {}
-
-class CTR {}
-
-class CTS {}
-
-class CTT {}
-
-class CTU {}
-
-class CTV {}
-
-class CTW {}
-
-class CTX {}
-
-class CTY {}
-
-class CTZ {}
-
-class CUa {}
-
-class CUb {}
-
-class CUc {}
-
-class CUd {}
-
-class CUe {}
-
-class CUf {}
-
-class CUg {}
-
-class CUh {}
-
-class CUi {}
-
-class CUj {}
-
-class CUk {}
-
-class CUl {}
-
-class CUm {}
-
-class CUn {}
-
-class CUo {}
-
-class CUp {}
-
-class CUq {}
-
-class CUr {}
-
-class CUs {}
-
-class CUt {}
-
-class CUu {}
-
-class CUv {}
-
-class CUw {}
-
-class CUx {}
-
-class CUy {}
-
-class CUz {}
-
-class CUA {}
-
-class CUB {}
-
-class CUC {}
-
-class CUD {}
-
-class CUE {}
-
-class CUF {}
-
-class CUG {}
-
-class CUH {}
-
-class CUI {}
-
-class CUJ {}
-
-class CUK {}
-
-class CUL {}
-
-class CUM {}
-
-class CUN {}
-
-class CUO {}
-
-class CUP {}
-
-class CUQ {}
-
-class CUR {}
-
-class CUS {}
-
-class CUT {}
-
-class CUU {}
-
-class CUV {}
-
-class CUW {}
-
-class CUX {}
-
-class CUY {}
-
-class CUZ {}
-
-class CVa {}
-
-class CVb {}
-
-class CVc {}
-
-class CVd {}
-
-class CVe {}
-
-class CVf {}
-
-class CVg {}
-
-class CVh {}
-
-class CVi {}
-
-class CVj {}
-
-class CVk {}
-
-class CVl {}
-
-class CVm {}
-
-class CVn {}
-
-class CVo {}
-
-class CVp {}
-
-class CVq {}
-
-class CVr {}
-
-class CVs {}
-
-class CVt {}
-
-class CVu {}
-
-class CVv {}
-
-class CVw {}
-
-class CVx {}
-
-class CVy {}
-
-class CVz {}
-
-class CVA {}
-
-class CVB {}
-
-class CVC {}
-
-class CVD {}
-
-class CVE {}
-
-class CVF {}
-
-class CVG {}
-
-class CVH {}
-
-class CVI {}
-
-class CVJ {}
-
-class CVK {}
-
-class CVL {}
-
-class CVM {}
-
-class CVN {}
-
-class CVO {}
-
-class CVP {}
-
-class CVQ {}
-
-class CVR {}
-
-class CVS {}
-
-class CVT {}
-
-class CVU {}
-
-class CVV {}
-
-class CVW {}
-
-class CVX {}
-
-class CVY {}
-
-class CVZ {}
-
-class CWa {}
-
-class CWb {}
-
-class CWc {}
-
-class CWd {}
-
-class CWe {}
-
-class CWf {}
-
-class CWg {}
-
-class CWh {}
-
-class CWi {}
-
-class CWj {}
-
-class CWk {}
-
-class CWl {}
-
-class CWm {}
-
-class CWn {}
-
-class CWo {}
-
-class CWp {}
-
-class CWq {}
-
-class CWr {}
-
-class CWs {}
-
-class CWt {}
-
-class CWu {}
-
-class CWv {}
-
-class CWw {}
-
-class CWx {}
-
-class CWy {}
-
-class CWz {}
-
-class CWA {}
-
-class CWB {}
-
-class CWC {}
-
-class CWD {}
-
-class CWE {}
-
-class CWF {}
-
-class CWG {}
-
-class CWH {}
-
-class CWI {}
-
-class CWJ {}
-
-class CWK {}
-
-class CWL {}
-
-class CWM {}
-
-class CWN {}
-
-class CWO {}
-
-class CWP {}
-
-class CWQ {}
-
-class CWR {}
-
-class CWS {}
-
-class CWT {}
-
-class CWU {}
-
-class CWV {}
-
-class CWW {}
-
-class CWX {}
-
-class CWY {}
-
-class CWZ {}
-
-class CXa {}
-
-class CXb {}
-
-class CXc {}
-
-class CXd {}
-
-class CXe {}
-
-class CXf {}
-
-class CXg {}
-
-class CXh {}
-
-class CXi {}
-
-class CXj {}
-
-class CXk {}
-
-class CXl {}
-
-class CXm {}
-
-class CXn {}
-
-class CXo {}
-
-class CXp {}
-
-class CXq {}
-
-class CXr {}
-
-class CXs {}
-
-class CXt {}
-
-class CXu {}
-
-class CXv {}
-
-class CXw {}
-
-class CXx {}
-
-class CXy {}
-
-class CXz {}
-
-class CXA {}
-
-class CXB {}
-
-class CXC {}
-
-class CXD {}
-
-class CXE {}
-
-class CXF {}
-
-class CXG {}
-
-class CXH {}
-
-class CXI {}
-
-class CXJ {}
-
-class CXK {}
-
-class CXL {}
-
-class CXM {}
-
-class CXN {}
-
-class CXO {}
-
-class CXP {}
-
-class CXQ {}
-
-class CXR {}
-
-class CXS {}
-
-class CXT {}
-
-class CXU {}
-
-class CXV {}
-
-class CXW {}
-
-class CXX {}
-
-class CXY {}
-
-class CXZ {}
-
-class CYa {}
-
-class CYb {}
-
-class CYc {}
-
-class CYd {}
-
-class CYe {}
-
-class CYf {}
-
-class CYg {}
-
-class CYh {}
-
-class CYi {}
-
-class CYj {}
-
-class CYk {}
-
-class CYl {}
-
-class CYm {}
-
-class CYn {}
-
-class CYo {}
-
-class CYp {}
-
-class CYq {}
-
-class CYr {}
-
-class CYs {}
-
-class CYt {}
-
-class CYu {}
-
-class CYv {}
-
-class CYw {}
-
-class CYx {}
-
-class CYy {}
-
-class CYz {}
-
-class CYA {}
-
-class CYB {}
-
-class CYC {}
-
-class CYD {}
-
-class CYE {}
-
-class CYF {}
-
-class CYG {}
-
-class CYH {}
-
-class CYI {}
-
-class CYJ {}
-
-class CYK {}
-
-class CYL {}
-
-class CYM {}
-
-class CYN {}
-
-class CYO {}
-
-class CYP {}
-
-class CYQ {}
-
-class CYR {}
-
-class CYS {}
-
-class CYT {}
-
-class CYU {}
-
-class CYV {}
-
-class CYW {}
-
-class CYX {}
-
-class CYY {}
-
-class CYZ {}
-
-class CZa {}
-
-class CZb {}
-
-class CZc {}
-
-class CZd {}
-
-class CZe {}
-
-class CZf {}
-
-class CZg {}
-
-class CZh {}
-
-class CZi {}
-
-class CZj {}
-
-class CZk {}
-
-class CZl {}
-
-class CZm {}
-
-class CZn {}
-
-class CZo {}
-
-class CZp {}
-
-class CZq {}
-
-class CZr {}
-
-class CZs {}
-
-class CZt {}
-
-class CZu {}
-
-class CZv {}
-
-class CZw {}
-
-class CZx {}
-
-class CZy {}
-
-class CZz {}
-
-class CZA {}
-
-class CZB {}
-
-class CZC {}
-
-class CZD {}
-
-class CZE {}
-
-class CZF {}
-
-class CZG {}
-
-class CZH {}
-
-class CZI {}
-
-class CZJ {}
-
-class CZK {}
-
-class CZL {}
-
-class CZM {}
-
-class CZN {}
-
-class CZO {}
-
-class CZP {}
-
-class CZQ {}
-
-class CZR {}
-
-class CZS {}
-
-class CZT {}
-
-class CZU {}
-
-class CZV {}
-
-class CZW {}
-
-class CZX {}
-
-class CZY {}
-
-class CZZ {}
diff --git a/tests/language_2/class/codegen_test.dart b/tests/language_2/class/codegen_test.dart
deleted file mode 100644
index cdf21d9d1e7..00000000000
--- a/tests/language_2/class/codegen_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  A() : x = 3;
-  foo() => x;
-  var x;
-}
-
-class B extends A {
-  bar() => 499;
-}
-
-class C extends A {
-  bar() => 42;
-}
-
-main() {
-  // We don't instantiate A, but the codegen still needs to emit (parts of) it
-  // for inheritance purposes.
-  var b = new B();
-  var c = new C();
-  Expect.equals(3, b.foo());
-  Expect.equals(3, c.foo());
-  Expect.equals(499, b.bar());
-  Expect.equals(42, c.bar());
-}
diff --git a/tests/language_2/class/cycle2_test.dart b/tests/language_2/class/cycle2_test.dart
deleted file mode 100644
index 6de0ee5a6ee..00000000000
--- a/tests/language_2/class/cycle2_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check fail because of cycles in super class relationship.
-
-// @dart = 2.9
-
-class C extends B {}
-
-class A extends B {}
-
-class B
-  extends A // //# 01: compile-time error
-  extends A // //# 02: compile-time error
-{}
-
-main() {
-  new C(); // //# 01: continued
-  <C>[]; // //# 02: continued
-}
diff --git a/tests/language_2/class/cycle_test.dart b/tests/language_2/class/cycle_test.dart
deleted file mode 100644
index a29c9cbca65..00000000000
--- a/tests/language_2/class/cycle_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check fail because of cycles in super class relationship.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Foo implements Bar {}
-
-class C {}
-
-class Bar
-    extends Foo // //# 00: compile-time error
-    implements Foo // //# 01: compile-time error
-{}
-
-class ImplementsC implements C
-, C // //# 02: compile-time error
-{}
-
-// Spec says: It is a compile-time error if the superclass
-// of a class C appears in the implements clause of C.
-class ExtendsC extends C
-implements C // //# 03: compile-time error
-{}
-
-main() {
-  Expect.isTrue(new Foo() is Foo);
-  Expect.isTrue(new ImplementsC() is C);
-  Expect.isTrue(new ExtendsC() is C);
-}
diff --git a/tests/language_2/class/cyclic_class_member_runtime_test.dart b/tests/language_2/class/cyclic_class_member_runtime_test.dart
deleted file mode 100644
index a9cca8c9400..00000000000
--- a/tests/language_2/class/cyclic_class_member_runtime_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that class with a cyclic hierarchy doesn't cause a loop in dart2js.
-
-class A
-
-{
-  // When checking that foo isn't overriding an instance method in the
-  // superclass, dart2js might loop.
-  static foo() {}
-}
-
-main() {
-  new A();
-}
diff --git a/tests/language_2/class/cyclic_class_member_test.dart b/tests/language_2/class/cyclic_class_member_test.dart
deleted file mode 100644
index f9f150582b8..00000000000
--- a/tests/language_2/class/cyclic_class_member_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that class with a cyclic hierarchy doesn't cause a loop in dart2js.
-
-class A
-//    ^
-// [analyzer] COMPILE_TIME_ERROR.RECURSIVE_INTERFACE_INHERITANCE
-// [cfe] 'A' is a supertype of itself.
-    extends A
-{
-  // When checking that foo isn't overriding an instance method in the
-  // superclass, dart2js might loop.
-  static foo() {}
-}
-
-main() {
-  new A();
-}
diff --git a/tests/language_2/class/inheritance_chain_lib.dart b/tests/language_2/class/inheritance_chain_lib.dart
deleted file mode 100644
index 1f79b0f6d57..00000000000
--- a/tests/language_2/class/inheritance_chain_lib.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "inheritance_chain_test.dart";
-
-class B extends C {
-  get id => "B";
-  get length => 2;
-}
-
-class D extends Z {
-  get id => "D";
-  get length => 4;
-}
-
-class W {
-  get id => "W";
-  get length => -4;
-}
-
-class Y extends X {
-  get id => "Y";
-  get length => -2;
-}
diff --git a/tests/language_2/class/inheritance_chain_test.dart b/tests/language_2/class/inheritance_chain_test.dart
deleted file mode 100644
index dd552520a26..00000000000
--- a/tests/language_2/class/inheritance_chain_test.dart
+++ /dev/null
@@ -1,105 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "inheritance_chain_lib.dart";
-
-class A extends B {
-  get id => "A";
-  get length => 1;
-}
-
-class C extends D {
-  get id => "C";
-  get length => 3;
-}
-
-class X extends W {
-  get id => "X";
-  get length => -3;
-}
-
-class Z extends Y {
-  get id => "Z";
-  get length => -1;
-}
-
-main() {
-  var instances = <dynamic>[
-    new A(),
-    new B(),
-    new C(),
-    new D(),
-    new W(),
-    new X(),
-    new Y(),
-    new Z(),
-    [],
-  ];
-
-  var o = instances[0];
-  Expect.equals("A", o.id);
-  Expect.equals(1, o.length);
-  Expect.isTrue(o is A);
-  Expect.isTrue(o is B);
-  Expect.isTrue(o is C);
-  Expect.isTrue(o is D);
-  Expect.isTrue(o is W);
-  Expect.isTrue(o is X);
-  Expect.isTrue(o is Y);
-  Expect.isTrue(o is Z);
-  o = instances[1];
-  Expect.equals("B", o.id);
-  Expect.equals(2, o.length);
-  Expect.isTrue(o is B);
-  Expect.isTrue(o is C);
-  Expect.isTrue(o is D);
-  Expect.isTrue(o is W);
-  Expect.isTrue(o is X);
-  Expect.isTrue(o is Y);
-  Expect.isTrue(o is Z);
-  o = instances[2];
-  Expect.equals("C", o.id);
-  Expect.equals(3, o.length);
-  Expect.isTrue(o is C);
-  Expect.isTrue(o is D);
-  Expect.isTrue(o is W);
-  Expect.isTrue(o is X);
-  Expect.isTrue(o is Y);
-  Expect.isTrue(o is Z);
-  o = instances[3];
-  Expect.equals("D", o.id);
-  Expect.equals(4, o.length);
-  Expect.isTrue(o is D);
-  Expect.isTrue(o is W);
-  Expect.isTrue(o is X);
-  Expect.isTrue(o is Y);
-  Expect.isTrue(o is Z);
-  o = instances[4];
-  Expect.equals("W", o.id);
-  Expect.equals(-4, o.length);
-  Expect.isTrue(o is W);
-  o = instances[5];
-  Expect.equals("X", o.id);
-  Expect.equals(-3, o.length);
-  Expect.isTrue(o is X);
-  Expect.isTrue(o is W);
-  o = instances[6];
-  Expect.equals("Y", o.id);
-  Expect.equals(-2, o.length);
-  Expect.isTrue(o is Y);
-  Expect.isTrue(o is X);
-  Expect.isTrue(o is W);
-  o = instances[7];
-  Expect.equals("Z", o.id);
-  Expect.equals(-1, o.length);
-  Expect.isTrue(o is Z);
-  Expect.isTrue(o is Y);
-  Expect.isTrue(o is X);
-  Expect.isTrue(o is W);
-  o = instances[8];
-  Expect.equals(0, o.length);
-}
diff --git a/tests/language_2/class/keyword_runtime_test.dart b/tests/language_2/class/keyword_runtime_test.dart
deleted file mode 100644
index e5719a04c8e..00000000000
--- a/tests/language_2/class/keyword_runtime_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that "class" cannot be used as identifier.
-
-class foo {}
-
-void main() {
-
-
-}
diff --git a/tests/language_2/class/keyword_test.dart b/tests/language_2/class/keyword_test.dart
deleted file mode 100644
index 86768673a03..00000000000
--- a/tests/language_2/class/keyword_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that "class" cannot be used as identifier.
-
-class foo {}
-
-void main() {
-  int class = 10;
-//^^^
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-// [cfe] Expected ';' after this.
-//    ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_IDENTIFIER_BUT_GOT_KEYWORD
-// [cfe] 'class' can't be used as an identifier because it's a keyword.
-// [cfe] Setter not found: 'class'.
-  print("$class");
-  //      ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-  // [analyzer] SYNTACTIC_ERROR.EXPECTED_IDENTIFIER_BUT_GOT_KEYWORD
-  // [cfe] 'class' can't be used as an identifier because it's a keyword.
-  // [cfe] Undefined name 'class'.
-}
diff --git a/tests/language_2/class/large_class_declaration_test.dart b/tests/language_2/class/large_class_declaration_test.dart
deleted file mode 100644
index 111df83be83..00000000000
--- a/tests/language_2/class/large_class_declaration_test.dart
+++ /dev/null
@@ -1,20020 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test program for testing compilation of classes with a large number
-// of fields.
-
-import "package:expect/expect.dart";
-
-class A {
-  var a0;
-  var a1;
-  var a2;
-  var a3;
-  var a4;
-  var a5;
-  var a6;
-  var a7;
-  var a8;
-  var a9;
-  var a10;
-  var a11;
-  var a12;
-  var a13;
-  var a14;
-  var a15;
-  var a16;
-  var a17;
-  var a18;
-  var a19;
-  var a20;
-  var a21;
-  var a22;
-  var a23;
-  var a24;
-  var a25;
-  var a26;
-  var a27;
-  var a28;
-  var a29;
-  var a30;
-  var a31;
-  var a32;
-  var a33;
-  var a34;
-  var a35;
-  var a36;
-  var a37;
-  var a38;
-  var a39;
-  var a40;
-  var a41;
-  var a42;
-  var a43;
-  var a44;
-  var a45;
-  var a46;
-  var a47;
-  var a48;
-  var a49;
-  var a50;
-  var a51;
-  var a52;
-  var a53;
-  var a54;
-  var a55;
-  var a56;
-  var a57;
-  var a58;
-  var a59;
-  var a60;
-  var a61;
-  var a62;
-  var a63;
-  var a64;
-  var a65;
-  var a66;
-  var a67;
-  var a68;
-  var a69;
-  var a70;
-  var a71;
-  var a72;
-  var a73;
-  var a74;
-  var a75;
-  var a76;
-  var a77;
-  var a78;
-  var a79;
-  var a80;
-  var a81;
-  var a82;
-  var a83;
-  var a84;
-  var a85;
-  var a86;
-  var a87;
-  var a88;
-  var a89;
-  var a90;
-  var a91;
-  var a92;
-  var a93;
-  var a94;
-  var a95;
-  var a96;
-  var a97;
-  var a98;
-  var a99;
-  var a100;
-  var a101;
-  var a102;
-  var a103;
-  var a104;
-  var a105;
-  var a106;
-  var a107;
-  var a108;
-  var a109;
-  var a110;
-  var a111;
-  var a112;
-  var a113;
-  var a114;
-  var a115;
-  var a116;
-  var a117;
-  var a118;
-  var a119;
-  var a120;
-  var a121;
-  var a122;
-  var a123;
-  var a124;
-  var a125;
-  var a126;
-  var a127;
-  var a128;
-  var a129;
-  var a130;
-  var a131;
-  var a132;
-  var a133;
-  var a134;
-  var a135;
-  var a136;
-  var a137;
-  var a138;
-  var a139;
-  var a140;
-  var a141;
-  var a142;
-  var a143;
-  var a144;
-  var a145;
-  var a146;
-  var a147;
-  var a148;
-  var a149;
-  var a150;
-  var a151;
-  var a152;
-  var a153;
-  var a154;
-  var a155;
-  var a156;
-  var a157;
-  var a158;
-  var a159;
-  var a160;
-  var a161;
-  var a162;
-  var a163;
-  var a164;
-  var a165;
-  var a166;
-  var a167;
-  var a168;
-  var a169;
-  var a170;
-  var a171;
-  var a172;
-  var a173;
-  var a174;
-  var a175;
-  var a176;
-  var a177;
-  var a178;
-  var a179;
-  var a180;
-  var a181;
-  var a182;
-  var a183;
-  var a184;
-  var a185;
-  var a186;
-  var a187;
-  var a188;
-  var a189;
-  var a190;
-  var a191;
-  var a192;
-  var a193;
-  var a194;
-  var a195;
-  var a196;
-  var a197;
-  var a198;
-  var a199;
-  var a200;
-  var a201;
-  var a202;
-  var a203;
-  var a204;
-  var a205;
-  var a206;
-  var a207;
-  var a208;
-  var a209;
-  var a210;
-  var a211;
-  var a212;
-  var a213;
-  var a214;
-  var a215;
-  var a216;
-  var a217;
-  var a218;
-  var a219;
-  var a220;
-  var a221;
-  var a222;
-  var a223;
-  var a224;
-  var a225;
-  var a226;
-  var a227;
-  var a228;
-  var a229;
-  var a230;
-  var a231;
-  var a232;
-  var a233;
-  var a234;
-  var a235;
-  var a236;
-  var a237;
-  var a238;
-  var a239;
-  var a240;
-  var a241;
-  var a242;
-  var a243;
-  var a244;
-  var a245;
-  var a246;
-  var a247;
-  var a248;
-  var a249;
-  var a250;
-  var a251;
-  var a252;
-  var a253;
-  var a254;
-  var a255;
-  var a256;
-  var a257;
-  var a258;
-  var a259;
-  var a260;
-  var a261;
-  var a262;
-  var a263;
-  var a264;
-  var a265;
-  var a266;
-  var a267;
-  var a268;
-  var a269;
-  var a270;
-  var a271;
-  var a272;
-  var a273;
-  var a274;
-  var a275;
-  var a276;
-  var a277;
-  var a278;
-  var a279;
-  var a280;
-  var a281;
-  var a282;
-  var a283;
-  var a284;
-  var a285;
-  var a286;
-  var a287;
-  var a288;
-  var a289;
-  var a290;
-  var a291;
-  var a292;
-  var a293;
-  var a294;
-  var a295;
-  var a296;
-  var a297;
-  var a298;
-  var a299;
-  var a300;
-  var a301;
-  var a302;
-  var a303;
-  var a304;
-  var a305;
-  var a306;
-  var a307;
-  var a308;
-  var a309;
-  var a310;
-  var a311;
-  var a312;
-  var a313;
-  var a314;
-  var a315;
-  var a316;
-  var a317;
-  var a318;
-  var a319;
-  var a320;
-  var a321;
-  var a322;
-  var a323;
-  var a324;
-  var a325;
-  var a326;
-  var a327;
-  var a328;
-  var a329;
-  var a330;
-  var a331;
-  var a332;
-  var a333;
-  var a334;
-  var a335;
-  var a336;
-  var a337;
-  var a338;
-  var a339;
-  var a340;
-  var a341;
-  var a342;
-  var a343;
-  var a344;
-  var a345;
-  var a346;
-  var a347;
-  var a348;
-  var a349;
-  var a350;
-  var a351;
-  var a352;
-  var a353;
-  var a354;
-  var a355;
-  var a356;
-  var a357;
-  var a358;
-  var a359;
-  var a360;
-  var a361;
-  var a362;
-  var a363;
-  var a364;
-  var a365;
-  var a366;
-  var a367;
-  var a368;
-  var a369;
-  var a370;
-  var a371;
-  var a372;
-  var a373;
-  var a374;
-  var a375;
-  var a376;
-  var a377;
-  var a378;
-  var a379;
-  var a380;
-  var a381;
-  var a382;
-  var a383;
-  var a384;
-  var a385;
-  var a386;
-  var a387;
-  var a388;
-  var a389;
-  var a390;
-  var a391;
-  var a392;
-  var a393;
-  var a394;
-  var a395;
-  var a396;
-  var a397;
-  var a398;
-  var a399;
-  var a400;
-  var a401;
-  var a402;
-  var a403;
-  var a404;
-  var a405;
-  var a406;
-  var a407;
-  var a408;
-  var a409;
-  var a410;
-  var a411;
-  var a412;
-  var a413;
-  var a414;
-  var a415;
-  var a416;
-  var a417;
-  var a418;
-  var a419;
-  var a420;
-  var a421;
-  var a422;
-  var a423;
-  var a424;
-  var a425;
-  var a426;
-  var a427;
-  var a428;
-  var a429;
-  var a430;
-  var a431;
-  var a432;
-  var a433;
-  var a434;
-  var a435;
-  var a436;
-  var a437;
-  var a438;
-  var a439;
-  var a440;
-  var a441;
-  var a442;
-  var a443;
-  var a444;
-  var a445;
-  var a446;
-  var a447;
-  var a448;
-  var a449;
-  var a450;
-  var a451;
-  var a452;
-  var a453;
-  var a454;
-  var a455;
-  var a456;
-  var a457;
-  var a458;
-  var a459;
-  var a460;
-  var a461;
-  var a462;
-  var a463;
-  var a464;
-  var a465;
-  var a466;
-  var a467;
-  var a468;
-  var a469;
-  var a470;
-  var a471;
-  var a472;
-  var a473;
-  var a474;
-  var a475;
-  var a476;
-  var a477;
-  var a478;
-  var a479;
-  var a480;
-  var a481;
-  var a482;
-  var a483;
-  var a484;
-  var a485;
-  var a486;
-  var a487;
-  var a488;
-  var a489;
-  var a490;
-  var a491;
-  var a492;
-  var a493;
-  var a494;
-  var a495;
-  var a496;
-  var a497;
-  var a498;
-  var a499;
-  var a500;
-  var a501;
-  var a502;
-  var a503;
-  var a504;
-  var a505;
-  var a506;
-  var a507;
-  var a508;
-  var a509;
-  var a510;
-  var a511;
-  var a512;
-  var a513;
-  var a514;
-  var a515;
-  var a516;
-  var a517;
-  var a518;
-  var a519;
-  var a520;
-  var a521;
-  var a522;
-  var a523;
-  var a524;
-  var a525;
-  var a526;
-  var a527;
-  var a528;
-  var a529;
-  var a530;
-  var a531;
-  var a532;
-  var a533;
-  var a534;
-  var a535;
-  var a536;
-  var a537;
-  var a538;
-  var a539;
-  var a540;
-  var a541;
-  var a542;
-  var a543;
-  var a544;
-  var a545;
-  var a546;
-  var a547;
-  var a548;
-  var a549;
-  var a550;
-  var a551;
-  var a552;
-  var a553;
-  var a554;
-  var a555;
-  var a556;
-  var a557;
-  var a558;
-  var a559;
-  var a560;
-  var a561;
-  var a562;
-  var a563;
-  var a564;
-  var a565;
-  var a566;
-  var a567;
-  var a568;
-  var a569;
-  var a570;
-  var a571;
-  var a572;
-  var a573;
-  var a574;
-  var a575;
-  var a576;
-  var a577;
-  var a578;
-  var a579;
-  var a580;
-  var a581;
-  var a582;
-  var a583;
-  var a584;
-  var a585;
-  var a586;
-  var a587;
-  var a588;
-  var a589;
-  var a590;
-  var a591;
-  var a592;
-  var a593;
-  var a594;
-  var a595;
-  var a596;
-  var a597;
-  var a598;
-  var a599;
-  var a600;
-  var a601;
-  var a602;
-  var a603;
-  var a604;
-  var a605;
-  var a606;
-  var a607;
-  var a608;
-  var a609;
-  var a610;
-  var a611;
-  var a612;
-  var a613;
-  var a614;
-  var a615;
-  var a616;
-  var a617;
-  var a618;
-  var a619;
-  var a620;
-  var a621;
-  var a622;
-  var a623;
-  var a624;
-  var a625;
-  var a626;
-  var a627;
-  var a628;
-  var a629;
-  var a630;
-  var a631;
-  var a632;
-  var a633;
-  var a634;
-  var a635;
-  var a636;
-  var a637;
-  var a638;
-  var a639;
-  var a640;
-  var a641;
-  var a642;
-  var a643;
-  var a644;
-  var a645;
-  var a646;
-  var a647;
-  var a648;
-  var a649;
-  var a650;
-  var a651;
-  var a652;
-  var a653;
-  var a654;
-  var a655;
-  var a656;
-  var a657;
-  var a658;
-  var a659;
-  var a660;
-  var a661;
-  var a662;
-  var a663;
-  var a664;
-  var a665;
-  var a666;
-  var a667;
-  var a668;
-  var a669;
-  var a670;
-  var a671;
-  var a672;
-  var a673;
-  var a674;
-  var a675;
-  var a676;
-  var a677;
-  var a678;
-  var a679;
-  var a680;
-  var a681;
-  var a682;
-  var a683;
-  var a684;
-  var a685;
-  var a686;
-  var a687;
-  var a688;
-  var a689;
-  var a690;
-  var a691;
-  var a692;
-  var a693;
-  var a694;
-  var a695;
-  var a696;
-  var a697;
-  var a698;
-  var a699;
-  var a700;
-  var a701;
-  var a702;
-  var a703;
-  var a704;
-  var a705;
-  var a706;
-  var a707;
-  var a708;
-  var a709;
-  var a710;
-  var a711;
-  var a712;
-  var a713;
-  var a714;
-  var a715;
-  var a716;
-  var a717;
-  var a718;
-  var a719;
-  var a720;
-  var a721;
-  var a722;
-  var a723;
-  var a724;
-  var a725;
-  var a726;
-  var a727;
-  var a728;
-  var a729;
-  var a730;
-  var a731;
-  var a732;
-  var a733;
-  var a734;
-  var a735;
-  var a736;
-  var a737;
-  var a738;
-  var a739;
-  var a740;
-  var a741;
-  var a742;
-  var a743;
-  var a744;
-  var a745;
-  var a746;
-  var a747;
-  var a748;
-  var a749;
-  var a750;
-  var a751;
-  var a752;
-  var a753;
-  var a754;
-  var a755;
-  var a756;
-  var a757;
-  var a758;
-  var a759;
-  var a760;
-  var a761;
-  var a762;
-  var a763;
-  var a764;
-  var a765;
-  var a766;
-  var a767;
-  var a768;
-  var a769;
-  var a770;
-  var a771;
-  var a772;
-  var a773;
-  var a774;
-  var a775;
-  var a776;
-  var a777;
-  var a778;
-  var a779;
-  var a780;
-  var a781;
-  var a782;
-  var a783;
-  var a784;
-  var a785;
-  var a786;
-  var a787;
-  var a788;
-  var a789;
-  var a790;
-  var a791;
-  var a792;
-  var a793;
-  var a794;
-  var a795;
-  var a796;
-  var a797;
-  var a798;
-  var a799;
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-  var a19895;
-  var a19896;
-  var a19897;
-  var a19898;
-  var a19899;
-  var a19900;
-  var a19901;
-  var a19902;
-  var a19903;
-  var a19904;
-  var a19905;
-  var a19906;
-  var a19907;
-  var a19908;
-  var a19909;
-  var a19910;
-  var a19911;
-  var a19912;
-  var a19913;
-  var a19914;
-  var a19915;
-  var a19916;
-  var a19917;
-  var a19918;
-  var a19919;
-  var a19920;
-  var a19921;
-  var a19922;
-  var a19923;
-  var a19924;
-  var a19925;
-  var a19926;
-  var a19927;
-  var a19928;
-  var a19929;
-  var a19930;
-  var a19931;
-  var a19932;
-  var a19933;
-  var a19934;
-  var a19935;
-  var a19936;
-  var a19937;
-  var a19938;
-  var a19939;
-  var a19940;
-  var a19941;
-  var a19942;
-  var a19943;
-  var a19944;
-  var a19945;
-  var a19946;
-  var a19947;
-  var a19948;
-  var a19949;
-  var a19950;
-  var a19951;
-  var a19952;
-  var a19953;
-  var a19954;
-  var a19955;
-  var a19956;
-  var a19957;
-  var a19958;
-  var a19959;
-  var a19960;
-  var a19961;
-  var a19962;
-  var a19963;
-  var a19964;
-  var a19965;
-  var a19966;
-  var a19967;
-  var a19968;
-  var a19969;
-  var a19970;
-  var a19971;
-  var a19972;
-  var a19973;
-  var a19974;
-  var a19975;
-  var a19976;
-  var a19977;
-  var a19978;
-  var a19979;
-  var a19980;
-  var a19981;
-  var a19982;
-  var a19983;
-  var a19984;
-  var a19985;
-  var a19986;
-  var a19987;
-  var a19988;
-  var a19989;
-  var a19990;
-  var a19991;
-  var a19992;
-  var a19993;
-  var a19994;
-  var a19995;
-  var a19996;
-  var a19997;
-  var a19998;
-  var a19999;
-  var a20000;
-}
-
-main() {
-  var a = new A();
-  a.a20000 = 42;
-  Expect.equals(42, a.a20000);
-}
diff --git a/tests/language_2/class/literal_static_test.dart b/tests/language_2/class/literal_static_test.dart
deleted file mode 100644
index 6366fefa217..00000000000
--- a/tests/language_2/class/literal_static_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test class literal expressions.
-
-class Class {
-  static fisk() => 42;
-}
-
-foo(x) {}
-
-main() {
-  // Verify that dereferencing a class literal is a compile-time error.
-  Class();
-  Class[0]; //# 02: compile-time error
-  var x = Class();
-  var y = Class[0]; //# 04: compile-time error
-  var z = Class[0].field; //# 05: compile-time error
-  var w = Class[0].method(); //# 06: compile-time error
-  foo(Class());
-  foo(Class[0]); //# 08: compile-time error
-  foo(Class[0].field); //# 09: compile-time error
-  foo(Class[0].method()); //# 10: compile-time error
-  Class[0] = 91; //# 11: compile-time error
-  Class++; //# 12: compile-time error
-  ++Class; //# 13: compile-time error
-  Class[0] += 3; //# 14: compile-time error
-  ++Class[0]; //# 15: compile-time error
-  Class[0]++; //# 16: compile-time error
-  Class.method(); //# 17: compile-time error
-  Class.field; //# 18: compile-time error
-  var p = Class.method(); //# 19: compile-time error
-  var q = Class.field; //# 20: compile-time error
-  foo(Class.method()); //# 21: compile-time error
-  foo(Class.field); //# 22: compile-time error
-  Class / 3; //# 23: compile-time error
-  Class += 3; //# 24: compile-time error
-  Class.toString(); //# 25: compile-time error
-}
diff --git a/tests/language_2/class/literal_test.dart b/tests/language_2/class/literal_test.dart
deleted file mode 100644
index 74b208dc6ec..00000000000
--- a/tests/language_2/class/literal_test.dart
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test class literal expressions.
-
-class Class {
-  static fisk() => 42;
-}
-
-foo(x) {}
-
-main() {
-  Expect.equals(42, Class.fisk());
-  Expect.equals(null, foo(Class.fisk()));
-
-  // Verify references to a class literal are allowed.
-  Class;
-  dynamic x = Class;
-  foo(Class);
-  Expect.isFalse(Class == null);
-
-  // Verify that dereferencing a class literal is a compile-time error if it
-  // isn't used as a constructor.
-  Class();
-  Class[0]; //# 02: compile-time error
-  x = Class();
-  x = Class[0]; //# 04: compile-time error
-  x = Class[0].field; //# 05: compile-time error
-  x = Class[0].method(); //# 06: compile-time error
-  foo(Class());
-  foo(Class[0]); //# 08: compile-time error
-  foo(Class[0].field); //# 09: compile-time error
-  foo(Class[0].method()); //# 10: compile-time error
-  Class[0] = 91; //# 11: compile-time error
-  Class++; //# 12: compile-time error
-  ++Class; //# 13: compile-time error
-  Class[0] += 3; //# 14: compile-time error
-  ++Class[0]; //# 15: compile-time error
-  Class[0]++; //# 16: compile-time error
-  Class.method(); //# 17: compile-time error
-  Class.field; //# 18: compile-time error
-  x = Class.method(); //# 19: compile-time error
-  x = Class.field; //# 20: compile-time error
-  foo(Class.method()); //# 21: compile-time error
-  foo(Class.field); //# 22: compile-time error
-  Class / 3; //# 23: compile-time error
-  Class += 3; //# 24: compile-time error
-
-  // Verify that a class literal isn't a string literal.
-  Expect.notEquals(Class, "Class");
-
-  // Verify toString() works for class literals.
-  Expect.isTrue((Class).toString() is String);
-  var y = Class;
-  Expect.isTrue(y.toString() is String);
-
-  Class.toString(); //# 25: compile-time error
-}
diff --git a/tests/language_2/class/multiple_interface_inheritance_test.dart b/tests/language_2/class/multiple_interface_inheritance_test.dart
deleted file mode 100644
index d39e7cafab4..00000000000
--- a/tests/language_2/class/multiple_interface_inheritance_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-abstract class I1 {
-  void f(int i);
-}
-
-abstract class I2 {
-  void f(Object o);
-}
-
-abstract class C implements I1, I2 {}
-
-class D extends C {
-  void f(Object o) {}
-}
-
-abstract class E implements I2, I1 {}
-
-class F extends E {
-  void f(Object o) {}
-}
-
-void g1(C c) {
-  c.f('hi');
-}
-
-void g2(E e) {
-  e.f('hi');
-}
-
-main() {
-  g1(new D());
-  g2(new F());
-}
diff --git a/tests/language_2/class/override_test.dart b/tests/language_2/class/override_test.dart
deleted file mode 100644
index def870225a4..00000000000
--- a/tests/language_2/class/override_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// It is a static compile time error if a method m1 overrides a method m2 and has a
-// different number of required parameters.
-
-class A {
-  foo() {}
-}
-
-class B extends A {
-  foo(a) {}
-//^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-// [cfe] The method 'B.foo' has more required arguments than those of overridden method 'A.foo'.
-}
-
-main() {
-  new B().foo(42);
-}
diff --git a/tests/language_2/class/recursive_inheritance_test.dart b/tests/language_2/class/recursive_inheritance_test.dart
deleted file mode 100644
index 7524d5981ff..00000000000
--- a/tests/language_2/class/recursive_inheritance_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Regression test for recursive inheritance patterns
-abstract class Comparable<T> {
-  int compareTo(T a);
-}
-
-class MI<T extends MI<T>> {}
-
-class _MI extends MI<_MI> {}
-
-class PMI<T extends Comparable<T>> extends MI<PMI<T>> {}
-
-class _PMI extends PMI<_PMI> implements Comparable<_PMI> {
-  int compareTo(_PMI other) => throw new UnimplementedError();
-}
-
-void main() {
-  MI a = new MI<_MI>();
-  PMI b = new PMI<_PMI>();
-  a = b;
-  Expect.isTrue(a is MI);
-  Expect.isTrue(b is PMI);
-  Expect.isTrue(b is MI);
-  Expect.isTrue(b is MI<PMI>);
-}
diff --git a/tests/language_2/class/syntax2_test.dart b/tests/language_2/class/syntax2_test.dart
deleted file mode 100644
index 5cbbdfd5f66..00000000000
--- a/tests/language_2/class/syntax2_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js bug http://dartbug.com/11570.
-
-import 'package:expect/expect.dart';
-
-void main() {
-  var c = new Cool(true);
-  Expect.stringEquals('{}', '${c.thing}');
-
-  c = new Cool(false);
-  Expect.stringEquals('[]', '${c.thing}');
-
-  c = new Cool.alt(true);
-  Expect.stringEquals('{}', '${c.thing}');
-
-  c = new Cool.alt(false);
-  Expect.stringEquals('[]', '${c.thing}');
-}
-
-class Cool {
-  final thing;
-
-  Cool(bool option) : thing = option ? <String, String>{} : <String>[];
-  Cool.alt(bool option) : thing = !option ? <String>[] : <String, String>{};
-}
diff --git a/tests/language_2/class/syntax_test.dart b/tests/language_2/class/syntax_test.dart
deleted file mode 100644
index eca5f1c654e..00000000000
--- a/tests/language_2/class/syntax_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  new ClassSyntaxTest();
-}
-
-class ClassSyntaxTest {
-  /* //# 01: syntax error
-}
-*/ //# 01: continued
diff --git a/tests/language_2/class/variable_shadow_class_runtime_test.dart b/tests/language_2/class/variable_shadow_class_runtime_test.dart
deleted file mode 100644
index b7d6651ba7b..00000000000
--- a/tests/language_2/class/variable_shadow_class_runtime_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-import "package:expect/expect.dart";
-
-// Local variables can shadow class names.
-
-class Test {
-  final int field;
-  Test.named(this.field);
-}
-
-main() {
-  {
-
-    // Now this refers to the variable.
-    var i = new Test.named(10);
-    Expect.equals(10, i.field);
-  }
-
-  {
-    // Shadowing is allowed.
-    var Test = 1;
-    Expect.equals(2, Test + 1);
-  }
-}
diff --git a/tests/language_2/class/variable_shadow_class_test.dart b/tests/language_2/class/variable_shadow_class_test.dart
deleted file mode 100644
index b5b7e9422ce..00000000000
--- a/tests/language_2/class/variable_shadow_class_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-import "package:expect/expect.dart";
-
-// Local variables can shadow class names.
-
-class Test {
-  final int field;
-  Test.named(this.field);
-}
-
-main() {
-  {
-    var Test;
-    // Now this refers to the variable.
-    var i = new Test.named(10);
-    //          ^^^^
-    // [analyzer] COMPILE_TIME_ERROR.PREFIX_SHADOWED_BY_LOCAL_DECLARATION
-    // [cfe] Couldn't find constructor 'Test.named'.
-    Expect.equals(10, i.field);
-  }
-
-  {
-    // Shadowing is allowed.
-    var Test = 1;
-    Expect.equals(2, Test + 1);
-  }
-}
diff --git a/tests/language_2/closure/bound_closure_equality_test.dart b/tests/language_2/closure/bound_closure_equality_test.dart
deleted file mode 100644
index c0e4564366e..00000000000
--- a/tests/language_2/closure/bound_closure_equality_test.dart
+++ /dev/null
@@ -1,78 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  const A();
-  foo() => 42;
-}
-
-class B {
-  foo() => 42;
-}
-
-main() {
-  // Use an array to defeat type inferencing.
-  var array = <dynamic>[new A(), new A(), new B(), new B()];
-  var set = new Set.from(array.map((a) => a.foo));
-  Expect.equals(array.length, set.length);
-  set.addAll(array.map((a) => a.foo));
-  Expect.equals(array.length, set.length);
-
-  for (int i = 0; i < array.length; i += 2) {
-    Expect.isTrue(set.contains(array[i].foo));
-    Expect.equals(array[i], array[i]);
-    Expect.equals(array[i].foo, array[i].foo);
-    Expect.equals(array[i].foo.hashCode, array[i].foo.hashCode);
-    for (int j = 0; j < array.length; j++) {
-      if (i == j) continue;
-      Expect.notEquals(array[i].foo, array[j].foo);
-    }
-  }
-
-  // Try with dart2js intercepted types.
-  array = <dynamic>['foo', 'bar', [], [], const []];
-  set = new Set.from(array.map((a) => a.indexOf));
-  Expect.equals(array.length, set.length);
-  set.addAll(array.map((a) => a.indexOf));
-  Expect.equals(array.length, set.length);
-
-  for (int i = 0; i < array.length; i += 2) {
-    Expect.isTrue(set.contains(array[i].indexOf));
-    Expect.equals(array[i], array[i]);
-    Expect.equals(array[i].indexOf, array[i].indexOf);
-    Expect.equals(array[i].indexOf.hashCode, array[i].indexOf.hashCode);
-    for (int j = 0; j < array.length; j++) {
-      if (i == j) continue;
-      Expect.notEquals(array[i].indexOf, array[j].indexOf);
-    }
-  }
-
-  array = <dynamic>[const A(), const A()];
-  set = new Set.from(array.map((a) => a.foo));
-  Expect.equals(1, set.length);
-  set.addAll(array.map((a) => a.foo));
-  Expect.equals(1, set.length);
-
-  Expect.isTrue(set.contains(array[0].foo));
-  Expect.equals(array[0].foo, array[0].foo);
-  Expect.equals(array[0].foo.hashCode, array[0].foo.hashCode);
-  Expect.equals(array[0].foo, array[1].foo);
-  Expect.equals(array[0].foo.hashCode, array[1].foo.hashCode);
-
-  array = <dynamic>[const [], const []];
-  set = new Set.from(array.map((a) => a.indexOf));
-  Expect.equals(1, set.length);
-  set.addAll(array.map((a) => a.indexOf));
-  Expect.equals(1, set.length);
-
-  Expect.isTrue(set.contains(array[0].indexOf));
-  Expect.equals(array[0].indexOf, array[0].indexOf);
-  Expect.equals(array[0].indexOf.hashCode, array[0].indexOf.hashCode);
-  Expect.equals(array[0].indexOf, array[1].indexOf);
-  Expect.equals(array[0].indexOf.hashCode, array[1].indexOf.hashCode);
-}
diff --git a/tests/language_2/closure/bound_closure_primitives_test.dart b/tests/language_2/closure/bound_closure_primitives_test.dart
deleted file mode 100644
index 7fa8e8e2774..00000000000
--- a/tests/language_2/closure/bound_closure_primitives_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test to make sure dart2js does not try to use the same
-// BoundClosureClass between an intercepted method and a
-// non-intercepted method.
-
-import "package:expect/expect.dart";
-
-class A {
-  // Make dart2js try to share a bound closure for [foo] with a bound
-  // closure for [List.add], by having same number of arguments.
-  foo(a) => a;
-}
-
-main() {
-  var array = <dynamic>[[], new A()];
-  var method = array[0].add;
-  method(42);
-
-  method = array[1].foo;
-  Expect.equals(42, method(42));
-
-  Expect.equals(1, array[0].length);
-  Expect.isTrue(array[0].contains(42));
-}
diff --git a/tests/language_2/closure/break1_test.dart b/tests/language_2/closure/break1_test.dart
deleted file mode 100644
index e99eceff734..00000000000
--- a/tests/language_2/closure/break1_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for closures.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class ClosureBreak1 {
-  ClosureBreak1(this.field);
-  int field;
-}
-
-class ClosureBreak1Test {
-  static testMain() {
-    var o1 = new ClosureBreak1(3);
-    String newstr = "abcdefgh";
-    foo() {
-      o1.field++;
-      Expect.equals(8, newstr.length);
-    }
-
-    bool loop = true;
-    L:
-    while (loop) {
-      String newstr1 = "abcd";
-      var o2 = new ClosureBreak1(3);
-      foo1() {
-        o2.field++;
-        Expect.equals(4, newstr1.length);
-      }
-
-      Expect.equals(4, newstr1.length);
-      while (loop) {
-        int newint = 0;
-        var o3 = new ClosureBreak1(3);
-        foo2() {
-          o3.field++;
-          Expect.equals(0, newint);
-        }
-
-        foo2();
-        break L;
-      }
-    }
-    foo();
-    Expect.equals(4, o1.field);
-  }
-}
-
-main() {
-  ClosureBreak1Test.testMain();
-}
diff --git a/tests/language_2/closure/break2_test.dart b/tests/language_2/closure/break2_test.dart
deleted file mode 100644
index daa6349d4ee..00000000000
--- a/tests/language_2/closure/break2_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for closures.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class ClosureBreak2 {
-  ClosureBreak2(this.field);
-  int field;
-}
-
-class ClosureBreak2Test {
-  static testMain() {
-    var o1 = new ClosureBreak2(3);
-    String newstr = "abcdefgh";
-    foo() {
-      o1.field++;
-      Expect.equals(8, newstr.length);
-    }
-
-    bool loop = true;
-    L:
-    while (loop) {
-      String newstr1 = "abcd";
-      Expect.equals(4, newstr1.length);
-      while (loop) {
-        int newint = 0;
-        Expect.equals(4, newstr1.length);
-        break L;
-      }
-    }
-    foo();
-    Expect.equals(4, o1.field);
-  }
-}
-
-main() {
-  ClosureBreak2Test.testMain();
-}
diff --git a/tests/language_2/closure/break_test.dart b/tests/language_2/closure/break_test.dart
deleted file mode 100644
index 91d31d86bdb..00000000000
--- a/tests/language_2/closure/break_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for closures.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class ClosureBreak {
-  ClosureBreak(this.field);
-  int field;
-}
-
-class ClosureBreakTest {
-  static testMain() {
-    var o1 = new ClosureBreak(3);
-    String newstr = "abcdefgh";
-    foo() {
-      o1.field++;
-      Expect.equals(8, newstr.length);
-    }
-
-    bool loop = true;
-    L1:
-    while (loop) {
-      String newstr1 = "abcd";
-      var o2 = new ClosureBreak(3);
-      foo1() {
-        o2.field++;
-        Expect.equals(4, newstr1.length);
-      }
-
-      Expect.equals(4, newstr1.length);
-      L2:
-      while (loop) {
-        int newint = 0;
-        var o3 = new ClosureBreak(3);
-        foo2() {
-          o3.field++;
-          Expect.equals(0, newint);
-        }
-
-        foo2();
-        break L2;
-      }
-      foo1();
-      Expect.equals(4, newstr1.length);
-      break L1;
-    }
-    foo();
-    Expect.equals(4, o1.field);
-  }
-}
-
-main() {
-  ClosureBreakTest.testMain();
-}
diff --git a/tests/language_2/closure/call_wrong_argument_count_test.dart b/tests/language_2/closure/call_wrong_argument_count_test.dart
deleted file mode 100644
index a04d2341bd6..00000000000
--- a/tests/language_2/closure/call_wrong_argument_count_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test mismatch in argument counts.
-import 'package:expect/expect.dart';
-
-int melke(f) {
-  return f(1, 2, 3);
-}
-
-main() {
-  kuh(int a, int b) {
-    return a + b;
-  }
-
-  Expect.throws(() {
-    melke(kuh);
-  });
-}
diff --git a/tests/language_2/closure/closure2_test.dart b/tests/language_2/closure/closure2_test.dart
deleted file mode 100644
index d036c6f7fea..00000000000
--- a/tests/language_2/closure/closure2_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for closures.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-bounce(fn) {
-  return fn();
-}
-
-demo(s) {
-  var i, a = bounce(() => s);
-  return a;
-}
-
-main() {
-  Expect.equals("Bounce!", demo("Bounce!"));
-}
diff --git a/tests/language_2/closure/closure3_test.dart b/tests/language_2/closure/closure3_test.dart
deleted file mode 100644
index 681ea98d2b5..00000000000
--- a/tests/language_2/closure/closure3_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that a NoSuchMethodError is thrown even when an expression
-// seems to be free of side-effects.
-
-test(x, y) {
-  (() {
-    x - y;
-  })();
-}
-
-main() {
-  Expect.throwsNoSuchMethodError(() => test(null, 2));
-}
diff --git a/tests/language_2/closure/closure4_test.dart b/tests/language_2/closure/closure4_test.dart
deleted file mode 100644
index 67160e8747e..00000000000
--- a/tests/language_2/closure/closure4_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart2js failed when a declared function was captured inside itself.
-
-foo(f) => f(499);
-
-main() {
-  fun(x) {
-    if (x < 3) {
-      return foo((x) => fun(x));
-    } else {
-      return x;
-    }
-  }
-
-  Expect.equals(499, fun(499));
-}
diff --git a/tests/language_2/closure/closure5_test.dart b/tests/language_2/closure/closure5_test.dart
deleted file mode 100644
index 9e7d3805277..00000000000
--- a/tests/language_2/closure/closure5_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart2js failed when a declared function was captured inside itself.
-
-foo(f) => f(499);
-
-main() {
-  fun(x) {
-    if (x < 3) {
-      return foo((x) => fun(x));
-    } else {
-      return x;
-    }
-  }
-
-  Expect.equals(499, foo((x) => fun(x)));
-}
diff --git a/tests/language_2/closure/closure6_test.dart b/tests/language_2/closure/closure6_test.dart
deleted file mode 100644
index fa47f785e6e..00000000000
--- a/tests/language_2/closure/closure6_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that captured final variables are correctly mangled.
-
-class A {
-  foo() {
-    length() => 400;
-    final box_0 = 28;
-    var x = 29;
-    var f = () => length() + box_0 + x + bar();
-    return f();
-  }
-
-  bar() => 42;
-}
-
-main() {
-  Expect.equals(499, new A().foo());
-}
diff --git a/tests/language_2/closure/closure7_test.dart b/tests/language_2/closure/closure7_test.dart
deleted file mode 100644
index 37e43867b7f..00000000000
--- a/tests/language_2/closure/closure7_test.dart
+++ /dev/null
@@ -1,99 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that implicitly bound closures work correctly
-
-class A {
-  foo() => 499;
-  fooo() => 4999; // Implicit closure class can be shared with foo.
-  bar(x, {y: 8, z: 10}) => "1 $x $y $z";
-  gee(x, {y: 9, z: 11}) => "2 $x $y $z"; // Must not be shared with "bar".
-  toto(x, {y: 8, z: 10}) => "3 $x $y $z"; // Could be shared with "bar".
-
-  fisk(x, {y: 8, zz: 10}) => "4 $x $y $zz";
-  titi(x, {y: 8, zz: 77}) => "5 $x $y $zz"; // Could be shared with "fisk",
-  // because default-val is never used.
-}
-
-class B {
-  // All implicit closures of B can be shared with their equivalent functions
-  // of A.
-  foo() => 4990;
-  fooo() => 49990;
-  bar(x, {y: 8, z: 10}) => "1B $x $y $z";
-  gee(x, {y: 9, z: 11}) => "2B $x $y $z";
-  toto(x, {y: 8, z: 10}) => "3B $x $y $z";
-  fisk(x, {y: 8, zz: 10}) => "4B $x $y $zz";
-  titi(x, {y: 8, zz: 77}) => "5B $x $y $zz";
-}
-
-tearOffFoo(o) => o.foo;
-tearOffFooo(o) => o.fooo;
-tearOffBar(o) => o.bar;
-tearOffGee(o) => o.gee;
-tearOffToto(o) => o.toto;
-tearOffFisk(o) => o.fisk;
-tearOffTiti(o) => o.titi;
-
-main() {
-  var a = new A();
-  var b = new B();
-  Expect.equals(499, tearOffFoo(a)());
-  Expect.equals(4990, tearOffFoo(b)());
-  Expect.equals(4999, tearOffFooo(a)());
-  Expect.equals(49990, tearOffFooo(b)());
-
-  var barA = tearOffBar(a);
-  var barB = tearOffBar(b);
-  var geeA = tearOffGee(a);
-  var geeB = tearOffGee(b);
-  var totoA = tearOffToto(a);
-  var totoB = tearOffToto(b);
-  Expect.equals("1 33 8 10", barA(33));
-  Expect.equals("1B 33 8 10", barB(33));
-  Expect.equals("2 33 9 11", geeA(33));
-  Expect.equals("2B 33 9 11", geeB(33));
-  Expect.equals("3 33 8 10", totoA(33));
-  Expect.equals("3B 33 8 10", totoB(33));
-
-  Expect.equals("1 35 8 10", barA(35));
-  Expect.equals("1B 35 8 10", barB(35));
-  Expect.equals("2 35 9 11", geeA(35));
-  Expect.equals("2B 35 9 11", geeB(35));
-  Expect.equals("3 35 8 10", totoA(35));
-  Expect.equals("3B 35 8 10", totoB(35));
-
-  Expect.equals("1 35 8 77", barA(35, z: 77));
-  Expect.equals("1B 35 8 77", barB(35, z: 77));
-  Expect.equals("2 35 9 77", geeA(35, z: 77));
-  Expect.equals("2B 35 9 77", geeB(35, z: 77));
-  Expect.equals("3 35 8 77", totoA(35, z: 77));
-  Expect.equals("3B 35 8 77", totoB(35, z: 77));
-
-  Expect.equals("1 35 8 77", barA(35, z: 77));
-  Expect.equals("1B 35 8 77", barB(35, z: 77));
-  Expect.equals("2 35 9 77", geeA(35, z: 77));
-  Expect.equals("2B 35 9 77", geeB(35, z: 77));
-  Expect.equals("3 35 8 77", totoA(35, z: 77));
-  Expect.equals("3B 35 8 77", totoB(35, z: 77));
-
-  var fiskA = tearOffFisk(a);
-  var fiskB = tearOffFisk(b);
-  var titiA = tearOffTiti(a);
-  var titiB = tearOffTiti(b);
-
-  Expect.equals("4 311 8 987", fiskA(311, zz: 987));
-  Expect.equals("4B 311 8 987", fiskB(311, zz: 987));
-  Expect.equals("5 311 8 987", titiA(311, zz: 987));
-  Expect.equals("5B 311 8 987", titiB(311, zz: 987));
-
-  Expect.equals("4 311 765 987", fiskA(311, y: 765, zz: 987));
-  Expect.equals("4B 311 765 987", fiskB(311, y: 765, zz: 987));
-  Expect.equals("5 311 765 987", titiA(311, y: 765, zz: 987));
-  Expect.equals("5B 311 765 987", titiB(311, y: 765, zz: 987));
-}
diff --git a/tests/language_2/closure/closure8_test.dart b/tests/language_2/closure/closure8_test.dart
deleted file mode 100644
index c77e3b83864..00000000000
--- a/tests/language_2/closure/closure8_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Regression test for issue 6353.
-
-// @dart = 2.9
-
-class A<E> {}
-
-class C<E> extends A<E> {
-  forEach(callback(E element)) {}
-}
-
-class D<E> {
-  lala(E element) {}
-}
-
-main() {
-  var c = new C<int>();
-  c.forEach(new D<int>().lala);
-}
diff --git a/tests/language_2/closure/closure_test.dart b/tests/language_2/closure/closure_test.dart
deleted file mode 100644
index d90c428a86c..00000000000
--- a/tests/language_2/closure/closure_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for closures.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  var field;
-  A(this.field) {}
-}
-
-class ClosureTest {
-  static testMain() {
-    var o = new A(3);
-    foo() => o.field++;
-    Expect.equals(3, foo());
-    Expect.equals(4, o.field);
-  }
-}
-
-main() {
-  ClosureTest.testMain();
-}
diff --git a/tests/language_2/closure/closures_initializer2_test.dart b/tests/language_2/closure/closures_initializer2_test.dart
deleted file mode 100644
index 01a3969fdf9..00000000000
--- a/tests/language_2/closure/closures_initializer2_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A<T> {
-  var t;
-  A() : t = (() => T);
-}
-
-expect(result, expected) {
-  if (result != expected) {
-    throw 'Expected $expected, got $result';
-  }
-}
-
-main() {
-  for (var i = 0; i < int.parse("1"); i++) {
-    expect(new A<int>().t() is Type, true);
-  }
-}
diff --git a/tests/language_2/closure/closures_initializer_test.dart b/tests/language_2/closure/closures_initializer_test.dart
deleted file mode 100644
index 4fc9d6bc332..00000000000
--- a/tests/language_2/closure/closures_initializer_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A<T> {
-  var t;
-  A() : t = (() => <T>[]);
-}
-
-class B<T> {
-  var t;
-  B() : t = (() => T);
-}
-
-expect(result, expected) {
-  if (result != expected) {
-    throw 'Expected $expected, got $result';
-  }
-}
-
-main() {
-  expect(new A<int>().t() is List<int>, true);
-  expect(new A<String>().t() is List<int>, false);
-  expect(new B<int>().t() is Type, true);
-  expect(new B<int>().t(), int);
-}
diff --git a/tests/language_2/closure/closures_with_complex_params_test.dart b/tests/language_2/closure/closures_with_complex_params_test.dart
deleted file mode 100644
index 6ba796b7fcb..00000000000
--- a/tests/language_2/closure/closures_with_complex_params_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Tests for parsing closures with complex parameter types.
-
-main() {
-  test1();
-  test2();
-  test3();
-}
-
-class Pair<A, B> {
-  final A fst;
-  final B snd;
-  Pair(A this.fst, B this.snd);
-}
-
-test1() {
-  // Closures with nested parameterized types.
-  var cdar1 = (Pair<int, Pair<int, int>> pr) => pr.snd.fst;
-  var cdar2 = (Pair<int, Pair<int, int>> pr) => pr.snd.fst;
-
-  var e = new Pair<int, Pair<int, int>>(100, new Pair<int, int>(200, 300));
-
-  Expect.equals(200, cdar1(e));
-  Expect.equals(200, cdar2(e));
-}
-
-test2() {
-  // Closures with nested parameterized types in optional position
-  var cdar1 = ([Pair<int, Pair<int, int>> pr = null]) => pr.snd.fst;
-  var cdar2 = ([Pair<int, Pair<int, int>> pr = null]) => pr.snd.fst;
-
-  var e = new Pair<int, Pair<int, int>>(100, new Pair<int, int>(200, 300));
-
-  Expect.equals(200, cdar1(e));
-  Expect.equals(200, cdar2(e));
-}
-
-test3() {
-  // Closures with nested parameterized types.
-  var f1 = (Pair<int, Pair<int, int>> pr) => pr.snd.fst + 1;
-  var f2 = (Pair<int, Pair<int, int>> pr) => pr.snd.fst + 2;
-
-  // Closures with function type with nested parameterized types.
-  var ap1 = (f(Pair<int, Pair<int, int>> pr1), Pair<int, Pair<int, int>> pr) =>
-      f(pr) * 10;
-  var ap2 = (f(Pair<int, Pair<int, int>> pr1), Pair<int, Pair<int, int>> pr) =>
-      f(pr) * 100;
-
-  var e = new Pair<int, Pair<int, int>>(100, new Pair<int, int>(200, 300));
-
-  Expect.equals(2010, ap1(f1, e));
-  Expect.equals(2020, ap1(f2, e));
-  Expect.equals(20100, ap2(f1, e));
-  Expect.equals(20200, ap2(f2, e));
-}
diff --git a/tests/language_2/closure/cycles_test.dart b/tests/language_2/closure/cycles_test.dart
deleted file mode 100644
index cf69b18f4e1..00000000000
--- a/tests/language_2/closure/cycles_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Based on dartbug.com/7681
-// Verify that context chains do not lead to unintended memory being held.
-
-// @dart = 2.9
-
-library closure_cycles_test;
-
-import "dart:async";
-
-class X {
-  Function onX;
-  X() {
-    Timer.run(() => onX(new Y()));
-  }
-}
-
-class Y {
-  Function onY;
-  var heavyMemory;
-  static var count = 0;
-  Y() {
-    // Consume large amounts of memory per iteration to fail/succeed quicker.
-    heavyMemory = new List.filled(10 * 1024 * 1024, null);
-    // Terminate the test if we allocated enough memory without running out.
-    if (count++ > 100) return;
-    Timer.run(() => onY());
-  }
-}
-
-void doIt() {
-  var x = new X();
-  x.onX = (y) {
-    y.onY = () {
-      y; // Capturing y can lead to endless context chains!
-      doIt();
-    };
-  };
-}
-
-void main() {
-  doIt();
-}
diff --git a/tests/language_2/closure/dynamic_test.dart b/tests/language_2/closure/dynamic_test.dart
deleted file mode 100644
index 1defa57f31b..00000000000
--- a/tests/language_2/closure/dynamic_test.dart
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Test that dynamic invocation of closures works as expected, including
-// appropriate type checks.
-//
-// VMOptions=--lazy-dispatchers
-// VMOptions=--no-lazy-dispatchers
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class A {
-  final int nonce_;
-
-  A(this.nonce_);
-}
-
-class B {
-  final int nonce_;
-
-  B(this.nonce_);
-}
-
-class C extends A {
-  C(int nonce) : super(nonce);
-}
-
-void main() {
-  dynamic f = (String a1, int a2, A a3, {String n1, int n2, A n3}) {};
-
-  f("test_fixed", 1, A(1), n1: "test_named", n2: 2, n3: A(2));
-
-// Test named argument permutations
-  f("test_fixed", 1, A(1), n1: "test_named", n3: A(2), n2: 2);
-  f("test_fixed", 1, A(1), n2: 2, n1: "test_named", n3: A(2));
-  f("test_fixed", 1, A(1), n2: 2, n3: A(2), n1: "test_named");
-  f("test_fixed", 1, A(1), n3: A(2), n1: "test_named", n2: 2);
-  f("test_fixed", 1, A(1), n3: A(2), n2: 2, n1: "test_named");
-
-// Test subclasses match the type
-  f("test_fixed", 1, C(1), n1: "test_named", n2: 2, n3: A(2));
-  f("test_fixed", 1, A(1), n1: "test_named", n2: 2, n3: C(2));
-
-// Should fail with no such method errors
-  Expect.throwsNoSuchMethodError(() => f());
-  Expect.throwsNoSuchMethodError(() => f("test_fixed", 1, A(1), n4: 4));
-
-// Should fail with type errors
-  Expect.throwsTypeError(
-      () => f(100, 1, A(1), n1: "test_named", n2: 2, n3: A(2)));
-  Expect.throwsTypeError(
-      () => f("test_fixed", 1.1, A(1), n1: "test_named", n2: 2, n3: A(2)));
-  Expect.throwsTypeError(
-      () => f("test_fixed", 1, B(1), n1: "test_named", n2: 2, n3: A(2)));
-  Expect.throwsTypeError(
-      () => f("test_fixed", 1, A(1), n1: 100, n2: 2, n3: A(2)));
-  Expect.throwsTypeError(
-      () => f("test_fixed", 1, A(1), n1: "test_named", n2: 2.2, n3: A(2)));
-  Expect.throwsTypeError(
-      () => f("test_fixed", 1, A(1), n1: "test_named", n2: 2, n3: B(2)));
-}
diff --git a/tests/language_2/closure/forwarding_stub_tearoff_generic_test.dart b/tests/language_2/closure/forwarding_stub_tearoff_generic_test.dart
deleted file mode 100644
index 64c8cab1df0..00000000000
--- a/tests/language_2/closure/forwarding_stub_tearoff_generic_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-class C {
-  void f(B x) {}
-}
-
-abstract class I<T> {
-  void f(T x);
-}
-
-// D contains a forwarding stub for f which ensures that `x` is type checked.
-class D extends C implements I<B> {}
-
-void checkStubTearoff(dynamic tearoff) {
-  // Since the stub's parameter is covariant, its type should be reified as
-  // Object.
-  Expect.isTrue(tearoff is void Function(Object));
-
-  // Verify that the appropriate runtime check occurs.
-  tearoff(new B()); // No error
-  Expect.throwsTypeError(() {
-    tearoff(new A());
-  });
-}
-
-main() {
-  // The same forwarding stub should be torn off from D regardless of what
-  // interface is used to tear it off.
-  D d = new D();
-  C c = d;
-  I i = d;
-  checkStubTearoff(d.f);
-  checkStubTearoff(c.f);
-  checkStubTearoff(i.f);
-}
diff --git a/tests/language_2/closure/forwarding_stub_tearoff_test.dart b/tests/language_2/closure/forwarding_stub_tearoff_test.dart
deleted file mode 100644
index 1261adb2732..00000000000
--- a/tests/language_2/closure/forwarding_stub_tearoff_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-class C {
-  void f(B x) {}
-}
-
-abstract class I {
-  void f(covariant A x);
-}
-
-// D contains a forwarding stub for f which ensures that `x` is type checked.
-class D extends C implements I {}
-
-void checkStubTearoff(dynamic tearoff) {
-  // Since the stub's parameter is covariant, its type should be reified as
-  // Object.
-  Expect.isTrue(tearoff is void Function(Object));
-
-  // Verify that the appropriate runtime check occurs.
-  tearoff(new B()); // No error
-  Expect.throwsTypeError(() {
-    tearoff(new A());
-  });
-}
-
-main() {
-  // The same forwarding stub should be torn off from D regardless of what
-  // interface is used to tear it off.
-  D d = new D();
-  C c = d;
-  I i = d;
-  checkStubTearoff(d.f);
-  checkStubTearoff(c.f);
-  checkStubTearoff(i.f);
-}
diff --git a/tests/language_2/closure/implicit1_test.dart b/tests/language_2/closure/implicit1_test.dart
deleted file mode 100644
index 245cff7c7c7..00000000000
--- a/tests/language_2/closure/implicit1_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--enable_type_checks --enable_asserts
-
-// @dart = 2.9
-
-typedef Handler(bool e);
-
-class Hello {
-  Hello() {}
-  void handler2(bool e) {
-    print('handler2');
-  }
-
-  static void handler1(bool e) {
-    print('handler1');
-  }
-
-  void addEventListener(String s, Handler handler, bool status) {
-    handler(status);
-  }
-
-  static void main() {
-    final h = new Hello();
-    h.addEventListener('click', handler1, false);
-    h.addEventListener('click', h.handler2, false);
-  }
-}
-
-main() {
-  Hello.main();
-}
diff --git a/tests/language_2/closure/implicit2_test.dart b/tests/language_2/closure/implicit2_test.dart
deleted file mode 100644
index f30432adae5..00000000000
--- a/tests/language_2/closure/implicit2_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class B {
-  foo(i) => 499 + i;
-}
-
-class A {
-  var b;
-  A() : b = new B();
-
-  foo(i) {
-    return (() => b.foo(i))();
-  }
-}
-
-main() {
-  var a = new A();
-  Expect.equals(510, a.foo(11));
-  var f = a.foo;
-  Expect.equals(521, f(22));
-}
diff --git a/tests/language_2/closure/implicit_closure_test.dart b/tests/language_2/closure/implicit_closure_test.dart
deleted file mode 100644
index a4defba4c75..00000000000
--- a/tests/language_2/closure/implicit_closure_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing invocation of implicit closures.
-// VMOptions=
-// VMOptions=--use_slow_path
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class First {
-  First(this.i) {}
-  var b;
-  int foo() {
-    return i;
-  }
-
-  Function foo1() {
-    local() {
-      return i;
-    }
-
-    return local;
-  }
-
-  int i;
-}
-
-class ImplicitClosureTest {
-  static void testMain() {
-    First obj = new First(20);
-
-    Function func = () => obj.i;
-    obj.b = func;
-    Expect.equals(20, obj.b());
-
-    var ib1 = obj.foo1();
-    Expect.equals(obj.i, ib1());
-
-    var ib = obj.foo;
-    Expect.equals(obj.i, ib());
-  }
-}
-
-main() {
-  ImplicitClosureTest.testMain();
-}
diff --git a/tests/language_2/closure/in_constructor_test.dart b/tests/language_2/closure/in_constructor_test.dart
deleted file mode 100644
index 3ac22059f88..00000000000
--- a/tests/language_2/closure/in_constructor_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  var closure;
-
-  factory A.factory() => new A(() => <T>[]);
-
-  A([this.closure]) {
-    if (closure == null) {
-      closure = () => <T>[];
-    }
-  }
-}
-
-main() {
-  Expect.isTrue((new A.factory()).closure() is List);
-  Expect.isTrue((new A()).closure() is List);
-  Expect.isTrue((new A<int>.factory()).closure() is List<int>);
-  Expect.isTrue((new A<int>()).closure() is List<int>);
-  Expect.isFalse((new A<int>.factory()).closure() is List<String>);
-  Expect.isFalse((new A<int>()).closure() is List<String>);
-}
diff --git a/tests/language_2/closure/in_field_initializer_test.dart b/tests/language_2/closure/in_field_initializer_test.dart
deleted file mode 100644
index 82894c62a32..00000000000
--- a/tests/language_2/closure/in_field_initializer_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Foo {
-  var closures = {'a': (int x, int y) => x + y};
-}
-
-main() {
-  var closures = new Foo().closures;
-  Expect.equals(6, closures['a'](4, 2));
-}
diff --git a/tests/language_2/closure/in_initializer2_test.dart b/tests/language_2/closure/in_initializer2_test.dart
deleted file mode 100644
index cb0986438db..00000000000
--- a/tests/language_2/closure/in_initializer2_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that a parameter used in a closure is properly boxed.
-
-import "package:expect/expect.dart";
-
-abstract class S {
-  S() {
-    Expect.equals(2, this.f());
-  }
-
-  get f;
-}
-
-class A extends S {
-  var f;
-  A(a) : f = (() => ++a) {
-    Expect.equals(a, 2);
-  }
-}
-
-main() {
-  var a = new A(1);
-  Expect.equals(a.f(), 3);
-}
diff --git a/tests/language_2/closure/in_initializer_test.dart b/tests/language_2/closure/in_initializer_test.dart
deleted file mode 100644
index 90a00d8e812..00000000000
--- a/tests/language_2/closure/in_initializer_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that a parameter used in two different closures defined in a
-// constructor initializer, is properly boxed.
-
-import "package:expect/expect.dart";
-
-class A {
-  var f;
-  var g;
-  A(a)
-      : f = (() => 42 + a),
-        g = (() => ++a) {
-    a = 4;
-  }
-}
-
-class B extends A {
-  B() : super(42);
-}
-
-class C extends A {
-  var h;
-  C(a)
-      : h = (() => ++a),
-        super(42);
-}
-
-main() {
-  dynamic a = new A(1);
-  Expect.equals(46, a.f());
-  Expect.equals(5, a.g());
-  Expect.equals(47, a.f());
-
-  a = new B();
-  Expect.equals(46, a.f());
-  Expect.equals(5, a.g());
-  Expect.equals(47, a.f());
-
-  a = new C(0);
-  Expect.equals(46, a.f());
-  Expect.equals(5, a.g());
-  Expect.equals(47, a.f());
-  Expect.equals(1, a.h());
-  Expect.equals(2, a.h());
-  Expect.equals(47, a.f());
-  Expect.equals(6, a.g());
-  Expect.equals(48, a.f());
-}
diff --git a/tests/language_2/closure/internals_runtime_test.dart b/tests/language_2/closure/internals_runtime_test.dart
deleted file mode 100644
index afc490db078..00000000000
--- a/tests/language_2/closure/internals_runtime_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class C {
-  foo() => 123;
-}
-
-main() {
-  var f = new C().foo;
-
-
-
-}
diff --git a/tests/language_2/closure/internals_test.dart b/tests/language_2/closure/internals_test.dart
deleted file mode 100644
index 288790e8d6e..00000000000
--- a/tests/language_2/closure/internals_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C {
-  foo() => 123;
-}
-
-main() {
-  var f = new C().foo;
-  var target = f.target;
-  //             ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'target' isn't defined for the class 'dynamic Function()'.
-  var self = f.self;
-  //           ^^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'self' isn't defined for the class 'dynamic Function()'.
-  var receiver = f.receiver;
-  //               ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'receiver' isn't defined for the class 'dynamic Function()'.
-}
diff --git a/tests/language_2/closure/invoked_through_interface_target_field_test.dart b/tests/language_2/closure/invoked_through_interface_target_field_test.dart
deleted file mode 100644
index fbcb516df54..00000000000
--- a/tests/language_2/closure/invoked_through_interface_target_field_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Note: this test expects a compile error (getter overrides a method), but it
-// contains more code than necessary to provoke the compile error.  The reason
-// for the extra code is to document the complications that would arise if we
-// decided to eliminate the compile error (and allow getters to override
-// methods).
-
-import "package:expect/expect.dart";
-
-typedef void F<T>(T t);
-
-class A {
-//    ^
-// [cfe] The non-abstract class 'A' is missing implementations for these members:
-  void foo(Object n);
-//^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONCRETE_CLASS_WITH_ABSTRACT_MEMBER
-}
-
-class C implements A {
-  F<Object> foo;
-  //        ^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_FIELD_AND_METHOD
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-class D<T> {
-  void m(T t) {}
-}
-
-F<Object> bar(D<int> d) => d.m;
-void baz(A a) {
-  Expect.throws(() {
-    // This call looks like it doesn't require any runtime type checking, since
-    // it is a call to a regular method with no covariant parameters.  However,
-    // if we decide to allow getters to override methods, then it's possible
-    // that it's actually invoking a getter that returns a closure, and that
-    // closure might have covariant parameters that need runtime type checks.
-    a.foo('hi');
-  });
-  // This call is ok because the types match up at runtime.
-  a.foo(1);
-}
-
-main() {
-  baz(new C()..foo = bar(new D<int>()));
-}
diff --git a/tests/language_2/closure/invoked_through_interface_target_getter_test.dart b/tests/language_2/closure/invoked_through_interface_target_getter_test.dart
deleted file mode 100644
index 5d41cba49fa..00000000000
--- a/tests/language_2/closure/invoked_through_interface_target_getter_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Note: this test expects a compile error (getter overrides a method), but it
-// contains more code than necessary to provoke the compile error.  The reason
-// for the extra code is to document the complications that would arise if we
-// decided to eliminate the compile error (and allow getters to override
-// methods).
-
-import "package:expect/expect.dart";
-
-typedef void F<T>(T t);
-
-class A {
-//    ^
-// [cfe] The non-abstract class 'A' is missing implementations for these members:
-  void foo(Object n);
-//^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONCRETE_CLASS_WITH_ABSTRACT_MEMBER
-}
-
-class C implements A {
-  F<Object> get foo => bar(new D<int>());
-  //            ^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_FIELD_AND_METHOD
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-class D<T> {
-  void m(T t) {}
-}
-
-F<Object> bar(D<int> d) => d.m;
-void baz(A a) {
-  Expect.throws(() {
-    // This call looks like it doesn't require any runtime type checking, since
-    // it is a call to a regular method with no covariant parameters.  However,
-    // if we decide to allow getters to override methods, then it's possible
-    // that it's actually invoking a getter that returns a closure, and that
-    // closure might have covariant parameters that need runtime type checks.
-    a.foo('hi');
-  });
-  // This call is ok because the types match up at runtime.
-  a.foo(1);
-}
-
-main() {
-  baz(new C());
-}
diff --git a/tests/language_2/closure/minify_closure_variable_collision_test.dart b/tests/language_2/closure/minify_closure_variable_collision_test.dart
deleted file mode 100644
index bd1ee86f955..00000000000
--- a/tests/language_2/closure/minify_closure_variable_collision_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js, that used to minify a captured
-// variable's name to the same name as inherited Object methods.
-
-var array = [new A()];
-
-class A {
-  operator ==(other) {
-    return true;
-  }
-}
-
-foo() {
-  // Use lots of variables, to maximize the chance of collisions.
-  var a = 42;
-  var b = 42;
-  var c = 42;
-  var d = 42;
-  var e = 42;
-  var f = 42;
-  var g = 42;
-  var h = 42;
-  var i = 42;
-  var j = 42;
-  var k = 42;
-  var l = 42;
-  var m = 42;
-  var n = 42;
-  array[0] = () {
-    return a + b + c + d + e + f + g + h + i + j + k + l + m + n;
-  };
-}
-
-main() {
-  foo();
-  if (array[0] == new A()) {
-    throw 'Test failed';
-  }
-  if (array[0]() != 42 * 14) {
-    throw 'Test failed';
-  }
-}
diff --git a/tests/language_2/closure/nested_generic_closure_test.dart b/tests/language_2/closure/nested_generic_closure_test.dart
deleted file mode 100644
index e9fc5025c3a..00000000000
--- a/tests/language_2/closure/nested_generic_closure_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-void foo(F f<F>(F f)) {}
-
-B bar<B>(B g<F>(F f)) => null;
-
-Function baz<B>() {
-  B foo<F>(B b, F f) => null;
-  return foo;
-}
-
-class C<T> {
-  void foo(F f<F>(T t, F f)) => null;
-  B bar<B>(B g<F>(T t, F f)) => null;
-  Function baz<B>() {
-    B foo<F>(T t, F f) => null;
-    return foo;
-  }
-}
-
-main() {
-  // Check the run-time type of the functions with generic parameters.
-
-  Expect.type<void Function(X Function<X>(X))>(foo);
-
-  Expect.isTrue(bar is X1 Function<X1>(X1 Function<X2>(X2)));
-
-  Expect.isTrue(baz<int>() is int Function<X1>(int, X1));
-  Expect.isTrue(baz<Object>() is Object Function<X1>(Object, X1));
-  Expect.isTrue(baz<Null>() is Null Function<X1>(Null, X1));
-
-  void testC<T>() {
-    var c = new C<T>();
-
-    Expect.type<void Function(F Function<F>(T, F))>(c.foo);
-
-    Expect.isTrue(c.bar is X1 Function<X1>(X1 Function<X2>(T, X2)));
-
-    Expect.isTrue(c.baz<int>() is int Function<X1>(T, X1));
-  }
-
-  testC<bool>();
-  testC<Object>();
-  testC<Null>();
-}
diff --git a/tests/language_2/closure/param_null_to_object_test.dart b/tests/language_2/closure/param_null_to_object_test.dart
deleted file mode 100644
index 0e81feb08db..00000000000
--- a/tests/language_2/closure/param_null_to_object_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  int Function(Null) f = (x) => 1; // Runtime type is int Function(Object)
-  Expect.isTrue(f is int Function(Null));
-  Expect.isTrue(f is int Function(String));
-  Expect.isTrue(f is int Function(Object));
-  int Function(String) g = (x) => 1; // Runtime type is int Function(String)
-  Expect.isTrue(g is int Function(Null));
-  Expect.isTrue(g is int Function(String));
-  Expect.isFalse(g is int Function(Object));
-}
diff --git a/tests/language_2/closure/parameter_types_test.dart b/tests/language_2/closure/parameter_types_test.dart
deleted file mode 100644
index a724948eb6e..00000000000
--- a/tests/language_2/closure/parameter_types_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Regression test for dart2js, where the optimizer was too aggressive
-// about parameter types of closures.
-
-class A {
-  Function f;
-  A(this.f);
-  _do() => f(1);
-}
-
-main() {
-  int invokeCount = 0;
-  closure(a) {
-    if (invokeCount++ == 1) {
-      Expect.isTrue(a is int);
-    }
-  }
-
-  closure('s');
-  new A(closure)._do();
-  Expect.equals(2, invokeCount);
-}
diff --git a/tests/language_2/closure/parse_closures_in_initializers_test.dart b/tests/language_2/closure/parse_closures_in_initializers_test.dart
deleted file mode 100644
index 94f89e757dc..00000000000
--- a/tests/language_2/closure/parse_closures_in_initializers_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-// Test that function literals are parsed correctly in initializers.
-
-class A {
-  final x;
-  static foo(f) => f();
-
-  A.parenthesized(y) : x = (() => y);
-  A.stringLiteral(y) : x = "**${() => y}--";
-  A.listLiteral(y) : x = [() => y];
-  A.mapLiteral(y) : x = {"fun": () => y};
-  A.arg(y) : x = foo(() => y);
-}
-
-main() {
-  var a, f;
-  a = new A.parenthesized(499);
-  f = a.x;
-  Expect.isTrue(f is Function);
-  Expect.equals(499, f());
-
-  // The toString of closures is not specified. Just make sure that there is no
-  // crash.
-  a = new A.stringLiteral(42);
-  Expect.isTrue(a.x.startsWith("**"));
-  Expect.isTrue(a.x.endsWith("--"));
-
-  a = new A.listLiteral(99);
-  f = a.x[0];
-  Expect.isTrue(f is Function);
-  Expect.equals(99, f());
-
-  a = new A.mapLiteral(314);
-  f = a.x["fun"];
-  Expect.isTrue(f is Function);
-  Expect.equals(314, f());
-
-  a = new A.arg(123);
-  Expect.equals(123, a.x);
-}
diff --git a/tests/language_2/closure/partial_instantiation_eager_bounds_check_test.dart b/tests/language_2/closure/partial_instantiation_eager_bounds_check_test.dart
deleted file mode 100644
index e9784df3c0a..00000000000
--- a/tests/language_2/closure/partial_instantiation_eager_bounds_check_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// This test checks that necessary type argument bounds checks are performed
-// eagerly during partial instantiation, rather than being delayed until the
-// partially instantiated closure is invoked.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C<T> {
-  void foo<S extends T>(S x) {}
-}
-
-void main() {
-  C<Object> c = C<int>();
-  void Function(String) fn;
-  Expect.throwsTypeError(() {
-    fn = c.foo;
-  });
-}
diff --git a/tests/language_2/closure/partial_instantiation_static_bounds_check_runtime_test.dart b/tests/language_2/closure/partial_instantiation_static_bounds_check_runtime_test.dart
deleted file mode 100644
index 52d48d14c9a..00000000000
--- a/tests/language_2/closure/partial_instantiation_static_bounds_check_runtime_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-topFn<T extends num>(T x) {
-  print(T);
-}
-
-class C<T> {
-  instanceFn<S extends T>(S x) {
-    print(S);
-  }
-}
-
-class D<T> extends C<T> {
-  void foo() {
-
-  }
-}
-
-void main() {
-  localFn<T extends num>(T x) {
-    print(T);
-  }
-
-
-
-}
diff --git a/tests/language_2/closure/partial_instantiation_static_bounds_check_test.dart b/tests/language_2/closure/partial_instantiation_static_bounds_check_test.dart
deleted file mode 100644
index 34e6b18d57a..00000000000
--- a/tests/language_2/closure/partial_instantiation_static_bounds_check_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-topFn<T extends num>(T x) {
-  print(T);
-}
-
-class C<T> {
-  instanceFn<S extends T>(S x) {
-    print(S);
-  }
-}
-
-class D<T> extends C<T> {
-  void foo() {
-    void Function(int) k = instanceFn;
-    //                     ^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.COULD_NOT_INFER
-    // [cfe] Inferred type argument 'int' doesn't conform to the bound 'T' of the type variable 'S' on 'dynamic Function<S extends T>(S)'.
-  }
-}
-
-void main() {
-  localFn<T extends num>(T x) {
-    print(T);
-  }
-
-  void Function(String) k0 = localFn;
-  //                         ^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.COULD_NOT_INFER
-  // [cfe] Inferred type argument 'String' doesn't conform to the bound 'num' of the type variable 'T' on 'Null Function<T extends num>(T)'.
-  void Function(String) k1 = topFn;
-  //                         ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.COULD_NOT_INFER
-  // [cfe] Inferred type argument 'String' doesn't conform to the bound 'num' of the type variable 'T' on 'dynamic Function<T extends num>(T)'.
-}
diff --git a/tests/language_2/closure/partial_tearoff_instantiation_test.dart b/tests/language_2/closure/partial_tearoff_instantiation_test.dart
deleted file mode 100644
index 67083338f4c..00000000000
--- a/tests/language_2/closure/partial_tearoff_instantiation_test.dart
+++ /dev/null
@@ -1,123 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-typedef F1 = void Function<T>(T);
-typedef void F2<T>(T v);
-
-dynamic defaultFLatest;
-
-void defaultF<T>(T v) {
-  defaultFLatest = v;
-}
-
-class X1 {
-  final F1 f;
-  const X1({this.f: defaultF});
-}
-
-class X2 {
-  final F2 f;
-  const X2({this.f: defaultF});
-}
-
-class Y1 {
-  F1 f;
-}
-
-class Y2 {
-  F2 f;
-}
-
-dynamic foo() {
-  if (defaultFLatest == -1) return -1;
-  return "not -1";
-}
-
-void main() {
-  {
-    var x = const X1();
-
-    // OK with implicit dynamic type argument.
-    x.f("hello1");
-    Expect.equals("hello1", defaultFLatest);
-
-    // OK with explicit dynamic type argument.
-    x.f<dynamic>("hello2");
-    Expect.equals("hello2", defaultFLatest);
-
-    // OK with correctly given argument type.
-    x.f<String>("hello3");
-    Expect.equals("hello3", defaultFLatest);
-
-    // OK with correctly given argument type.
-    x.f<int>(42);
-    Expect.equals(42, defaultFLatest);
-
-    // Not OK with incorrectly given argument type.
-    x.f<int>("hello"); //# 01: compile-time error
-
-    // Not OK with incorrectly given argument type.
-    x.f<int>(foo()); //# 02: runtime error
-
-    var y = new Y1();
-    y.f = defaultF;
-
-    // OK with implicit dynamic type argument.
-    y.f("hello4");
-    Expect.equals("hello4", defaultFLatest);
-
-    // OK with explicit dynamic type argument.
-    y.f<dynamic>("hello5");
-    Expect.equals("hello5", defaultFLatest);
-
-    // OK with correctly given argument type.
-    y.f<String>("hello6");
-    Expect.equals("hello6", defaultFLatest);
-
-    // OK with correctly given argument type.
-    y.f<int>(43);
-    Expect.equals(43, defaultFLatest);
-
-    // Not OK with incorrectly given argument type.
-    y.f<int>("hello"); //# 03: compile-time error
-
-    // Not OK with incorrectly given argument type.
-    y.f<int>(foo()); //# 04: runtime error
-  }
-  {
-    var x = const X2();
-
-    // OK with no type arguments.
-    x.f("hello1");
-    Expect.equals("hello1", defaultFLatest);
-
-    // Not OK with a type argument.
-    x.f<dynamic>("hello2"); //# 05: compile-time error
-
-    // Not OK with a type argument.
-    x.f<String>("hello3"); //# 06: compile-time error
-
-    var y = new Y2();
-    y.f = defaultF;
-
-    // OK with no type argument.
-    y.f("hello4");
-    Expect.equals("hello4", defaultFLatest);
-
-    // Not OK with a type argument.
-    y.f<dynamic>("hello5"); //# 07: compile-time error
-
-    // Not OK with a type argument.
-    y.f<String>("hello6"); //# 08: compile-time error
-
-    // Correct runtime type of x.f.
-    void instantiatedFType(dynamic _) {}
-    Expect.equals(x.f.runtimeType.toString(),
-        instantiatedFType.runtimeType.toString()); // #09: ok
-  }
-}
diff --git a/tests/language_2/closure/regress46568_test.dart b/tests/language_2/closure/regress46568_test.dart
deleted file mode 100644
index 1117775817d..00000000000
--- a/tests/language_2/closure/regress46568_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-// Regression test for https://github.com/dart-lang/sdk/issues/46568.
-
-var genericTopLevelFunctionCallCount = 0;
-var genericStaticMethodCallCount = 0;
-
-T genericTopLevelFunction<T>() {
-  genericTopLevelFunctionCallCount++;
-  return null;
-}
-
-class A {
-  static T genericStaticMethod<T>() {
-    genericStaticMethodCallCount++;
-    return null;
-  }
-}
-
-const int Function() cIntTopLevelFunction1 = genericTopLevelFunction;
-const int Function() cIntStaticMethod1 = A.genericStaticMethod;
-
-void main() {
-  // Two different const generic function instantiations should not be
-  // canonicalized to the same value.
-  Expect.isFalse(identical(cIntTopLevelFunction1, cIntStaticMethod1));
-  Expect.notEquals(cIntTopLevelFunction1, cIntStaticMethod1);
-
-  cIntTopLevelFunction1();
-  Expect.equals(1, genericTopLevelFunctionCallCount);
-  Expect.equals(0, genericStaticMethodCallCount);
-
-  cIntStaticMethod1();
-  Expect.equals(1, genericTopLevelFunctionCallCount);
-  Expect.equals(1, genericStaticMethodCallCount);
-}
diff --git a/tests/language_2/closure/self_reference_test.dart b/tests/language_2/closure/self_reference_test.dart
deleted file mode 100644
index 1b348133fb6..00000000000
--- a/tests/language_2/closure/self_reference_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-// Tests a self-reference of a closure inside a try/catch.
-// Dart2js must not try to box the closure-reference.
-
-main() {
-  var counter = 0;
-  inner(value) {
-    if (value == 0) return 0;
-    try {
-      return inner(value - 1);
-    } finally {
-      counter++;
-    }
-  }
-
-  Expect.equals(0, inner(199));
-  Expect.equals(199, counter);
-}
diff --git a/tests/language_2/closure/shared_state_test.dart b/tests/language_2/closure/shared_state_test.dart
deleted file mode 100644
index 0920aabab9d..00000000000
--- a/tests/language_2/closure/shared_state_test.dart
+++ /dev/null
@@ -1,78 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Tests for closures sharing mutable bindings.
-
-var f;
-var g;
-
-setupPlain() {
-  int j = 1000;
-  // Two closures sharing variable 'j'; j initially is 1000.
-  f = (int x) {
-    var q = j;
-    j = x;
-    return q;
-  };
-  g = (int x) {
-    var q = j;
-    j = x;
-    return q;
-  };
-}
-
-setupLoop() {
-  for (int i = 0; i < 2; i++) {
-    int j = i * 1000; // The last stored closure has j initially 1000.
-    // Two closures sharing variable 'j'.
-    f = (int x) {
-      var q = j;
-      j = x;
-      return q;
-    };
-    g = (int x) {
-      var q = j;
-      j = x;
-      return q;
-    };
-  }
-}
-
-setupNestedLoop() {
-  for (int outer = 0; outer < 2; outer++) {
-    int j = outer * 1000;
-    for (int i = 0; i < 2; i++) {
-      // Two closures sharing variable 'j' in a loop at different nesting.
-      f = (int x) {
-        var q = j;
-        j = x;
-        return q;
-      };
-      g = (int x) {
-        var q = j;
-        j = x;
-        return q;
-      };
-    }
-  }
-}
-
-test(setup) {
-  setup();
-  Expect.equals(1000, f(100));
-  Expect.equals(100, f(200));
-  Expect.equals(200, f(300));
-  Expect.equals(300, g(400));
-  Expect.equals(400, g(500));
-}
-
-main() {
-  test(setupPlain);
-  test(setupLoop);
-  test(setupNestedLoop);
-}
diff --git a/tests/language_2/closure/side_effect_test.dart b/tests/language_2/closure/side_effect_test.dart
deleted file mode 100644
index fd7cddba4b3..00000000000
--- a/tests/language_2/closure/side_effect_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-typedef void VoidToVoid();
-
-var b;
-VoidToVoid a = () {
-  b = 42;
-};
-
-var c = [new C()];
-
-class C {
-  nonInlinable1() {
-    a();
-  }
-
-  nonInlinable2() {
-    var a = () {
-      b = 42;
-    };
-    a();
-  }
-}
-
-testClosureInStaticField() {
-  var temp = c[0];
-  Expect.isNull(b);
-  temp.nonInlinable1();
-  Expect.equals(42, b);
-  b = null;
-}
-
-testLocalClosure() {
-  var temp = c[0];
-  Expect.isNull(b);
-  temp.nonInlinable2();
-  Expect.equals(42, b);
-}
-
-main() {
-  testClosureInStaticField();
-  testLocalClosure();
-}
diff --git a/tests/language_2/closure/tearoff_bounds_instantiation_test.dart b/tests/language_2/closure/tearoff_bounds_instantiation_test.dart
deleted file mode 100644
index 935705521ba..00000000000
--- a/tests/language_2/closure/tearoff_bounds_instantiation_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// This test checks that the type parameter bounds on tearoffs from generic
-// classes are properly instantiated in the signature of the tearoff.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C<T> {
-  void foo<S extends T>(S x) {}
-}
-
-void foo<S extends int>(S x) {}
-
-void main() {
-  dynamic c = C<int>();
-  dynamic fn = c.foo;
-  Expect.equals("${fn.runtimeType}", "${foo.runtimeType}");
-}
diff --git a/tests/language_2/closure/tearoff_dynamic_test.dart b/tests/language_2/closure/tearoff_dynamic_test.dart
deleted file mode 100644
index 1dde4844ded..00000000000
--- a/tests/language_2/closure/tearoff_dynamic_test.dart
+++ /dev/null
@@ -1,172 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-import 'package:expect/expect.dart';
-
-class C {
-  dynamic f(int x) => x + 1;
-  dynamic g(int x) => x + 2;
-}
-
-class D extends C {
-  f(int x) => x + 41;
-  get superF => super.f;
-  get superG => super.g;
-}
-
-tearoffEquals(f1, f2) {
-  Expect.equals(f1, f2);
-  Expect.equals(f1.hashCode, f2.hashCode);
-}
-
-tearoffNotEquals(f1, f2) {
-  Expect.notEquals(f1, f2);
-  Expect.notEquals(f1.hashCode, f2.hashCode);
-}
-
-testDynamic() {
-  C c = new C();
-
-  dynamic f1 = c.f;
-  Expect.throws(() => f1(2.5));
-  Expect.equals(f1(41), 42);
-
-  dynamic f2 = (c as dynamic).f;
-  Expect.throws(() => f2(2.5));
-  Expect.equals(f2(41), 42);
-
-  tearoffEquals(f1, f1);
-  tearoffEquals(f1, f2);
-  tearoffEquals(f1, c.f);
-  tearoffEquals(c.g, (c as dynamic).g);
-
-  tearoffNotEquals(f1, new C().f);
-  tearoffNotEquals(f1, (new C() as dynamic).f);
-  tearoffNotEquals(f1, c.g);
-  tearoffNotEquals(f1, (c as dynamic).g);
-  tearoffNotEquals(null, f1);
-  tearoffNotEquals(f1, null);
-}
-
-testSuper() {
-  D d = new D();
-  dynamic superF1 = d.superF;
-  dynamic superF2 = (d as dynamic).superF;
-
-  Expect.throws(() => superF1(2.5));
-  Expect.throws(() => superF2(2.5));
-  Expect.equals(superF1(41), 42);
-  Expect.equals(superF2(41), 42);
-
-  tearoffEquals(superF1, superF1);
-  tearoffEquals(superF1, superF2);
-  tearoffEquals(superF1, d.superF);
-  tearoffEquals(d.f, (d as dynamic).f);
-
-  tearoffNotEquals(superF1, d.f);
-  tearoffNotEquals(superF1, (d as dynamic).f);
-  tearoffNotEquals(superF1, new D().superF);
-  tearoffNotEquals(superF1, (new D() as dynamic).superF);
-  tearoffNotEquals(superF1, d.superG);
-  tearoffNotEquals(superF1, (d as dynamic).superG);
-
-  tearoffEquals(d.superG, (d as dynamic).superG);
-  tearoffEquals(d.g, d.superG);
-}
-
-class S {
-  final int id;
-  S(this.id);
-  toString() => 'S#$id';
-}
-
-testToString() {
-  testType<T>(T c) {
-    dynamic d = c;
-    Object o = c;
-    tearoffEquals(c.toString, d.toString);
-    tearoffEquals(c.toString, o.toString);
-
-    var expected = c.toString();
-    dynamic f = d.toString;
-    tearoffEquals(f(), expected);
-    f = o.toString;
-    tearoffEquals(f(), expected);
-    var g = c.toString;
-    tearoffEquals(g(), expected);
-  }
-
-  testType(new C());
-  testType(new D());
-  testType(new S(1));
-  testType(new S(2));
-  testType(new Object());
-  testType(null);
-  testType(Object); // Type
-  testType(C); // Type
-  testType(42);
-  testType('hi');
-  testType(true);
-  testType([1, 2, 3]);
-  testType({'a': 'b'});
-  testType((x) => x + 1);
-  testType(testType as dynamic); // illegal inferred type for T otherwise
-}
-
-class N {
-  noSuchMethod(i) => i;
-}
-
-testNoSuchMethod() {
-  // Create an invocation.
-  Invocation i = (new N() as dynamic).foo(1, bar: 2);
-  tearoffEquals(i.memberName, #foo);
-
-  testType<T>(T c) {
-    dynamic d = c;
-    Object o = c;
-    tearoffEquals(c.noSuchMethod, d.noSuchMethod);
-    tearoffEquals(c.noSuchMethod, o.noSuchMethod);
-
-    var expected;
-    try {
-      c.noSuchMethod(i);
-    } on NoSuchMethodError catch (error) {
-      var nsm = '$error';
-      Expect.isTrue(nsm.startsWith("NoSuchMethodError: "));
-      Expect.isTrue(nsm.contains("'foo'"));
-      expected = (e) => e is NoSuchMethodError && '$e' == nsm;
-    }
-    dynamic f = d.noSuchMethod;
-    Expect.throws(() => f(i), expected);
-    f = o.noSuchMethod;
-    Expect.throws(() => f(i), expected);
-    var g = c.noSuchMethod;
-    Expect.throws(() => g(i), expected);
-  }
-
-  testType(new C());
-  testType(new D());
-  testType(new S(1));
-  testType(new S(2));
-  testType(new Object());
-  testType(null);
-  testType(Object); // Type
-  testType(C); // Type
-  testType(42);
-  testType('hi');
-  testType(true);
-  testType([1, 2, 3]);
-  testType({'a': 'b'});
-  testType((x) => x + 1);
-  testType(testType as dynamic); // illegal inferred type for T otherwise
-}
-
-main() {
-  testDynamic();
-  testSuper();
-  testToString();
-  testNoSuchMethod();
-}
diff --git a/tests/language_2/closure/type_arguments_test.dart b/tests/language_2/closure/type_arguments_test.dart
deleted file mode 100644
index f1120088a82..00000000000
--- a/tests/language_2/closure/type_arguments_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-typedef MapFunc<S1, S2> = void Function(Map<S1, S2> arg);
-
-class A<P> {
-  final List barTypeArguments = [];
-
-  void foo<Q, Q1 extends P, Q2 extends Q, Q3 extends P, Q4 extends Q>() {
-    void bar<T1 extends P, T2 extends Q>(Map<T1, T2> arg) {
-      barTypeArguments..add(T1)..add(T2);
-    }
-
-    // Call with explicit type arguments.
-    bar<Q1, Q2>(null);
-
-    // No explicit type arguments - should be instantiated to bounds.
-    bar(null);
-
-    // Partial tear-off instantiation.
-    MapFunc<Q3, Q4> instantiated = bar;
-    instantiated(null);
-  }
-}
-
-abstract class MyIterable implements Iterable {}
-
-main() {
-  final a = new A<num>();
-  a.foo<Iterable, int, List, double, MyIterable>();
-  Expect.listEquals(
-      [int, List, num, Iterable, double, MyIterable], a.barTypeArguments);
-
-  // Test instantiation to bounds in the enclosing method.
-  dynamic b = new A<int>();
-  b.foo();
-  Expect.listEquals(
-      [int, dynamic, int, dynamic, int, dynamic], b.barTypeArguments);
-}
diff --git a/tests/language_2/closure/type_test.dart b/tests/language_2/closure/type_test.dart
deleted file mode 100644
index edb9e956643..00000000000
--- a/tests/language_2/closure/type_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test for a closure result type test that cannot be eliminated at compile
-// time.
-
-import "package:expect/expect.dart";
-
-void test(A func(String value), String value) {
-  Expect.throwsTypeError(() {
-    B x = func(value);
-  });
-}
-
-
-class A {
-}
-
-class B extends A {
-}
-
-class C {
-  static A a(String x) => new A();
-}
-
-A aclosure(String x) => C.a(x);
-A bclosure() => new A();
-
-main() {
-  test(aclosure, "foo");
-  test((bar) => bclosure(), "baz");
-}
diff --git a/tests/language_2/closure/type_variable_test.dart b/tests/language_2/closure/type_variable_test.dart
deleted file mode 100644
index ba0112cca0d..00000000000
--- a/tests/language_2/closure/type_variable_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that the type argument is available inside a closure.
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  foo() {
-    bar() => T;
-    return bar();
-  }
-}
-
-main() {
-  Expect.equals(new A<int>().foo(), int);
-}
diff --git a/tests/language_2/closure/type_variables_test.dart b/tests/language_2/closure/type_variables_test.dart
deleted file mode 100644
index 6be0ff2fccf..00000000000
--- a/tests/language_2/closure/type_variables_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-import "package:expect/expect.dart";
-
-// Test that type variables are available in closures.
-
-class A<T> {
-  A();
-
-  A.bar() {
-    g() {
-      new A<T>();
-    }
-
-    g();
-  }
-
-  foo() {
-    g() {
-      return new A<T>();
-    }
-
-    return g();
-  }
-}
-
-class B<K> {
-  makeBaz() {
-    return (K key) async {
-      return null;
-    };
-  }
-}
-
-typedef Future<Null> aBaz(int a);
-
-main() {
-  Expect.isTrue(new A<int>().foo() is A<int>);
-  Expect.isTrue(new A<int>.bar().foo() is A<int>);
-  Expect.isTrue(new B<int>().makeBaz() is aBaz);
-}
diff --git a/tests/language_2/closure/unnamed_closure_test.dart b/tests/language_2/closure/unnamed_closure_test.dart
deleted file mode 100644
index f5e487029f4..00000000000
--- a/tests/language_2/closure/unnamed_closure_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-getNonArray() => new A();
-
-class A {
-  operator [](index) => index;
-}
-
-main() {
-  Expect.equals(42, () {
-    var res;
-    do {
-      var a = getNonArray();
-      res = a[42];
-    } while (false);
-    return res;
-  }());
-}
diff --git a/tests/language_2/closure/variable_shadow_test.dart b/tests/language_2/closure/variable_shadow_test.dart
deleted file mode 100644
index 07a11fc51d3..00000000000
--- a/tests/language_2/closure/variable_shadow_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// The intermediate variable 'y' must either be preserved
-// or parameters must be renamed.
-
-foo(x) {
-  var y = x;
-  bar(x) {
-    return y - x;
-  }
-
-  return bar;
-}
-
-main() {
-  Expect.equals(-10, foo(10)(20));
-}
diff --git a/tests/language_2/closure/with_super_field_test.dart b/tests/language_2/closure/with_super_field_test.dart
deleted file mode 100644
index 6563f90836c..00000000000
--- a/tests/language_2/closure/with_super_field_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  int a;
-  A() : a = 42;
-}
-
-class B extends A {
-  int get a => 54;
-  returnSuper() => super.a;
-  returnSuperInClosure() => () => super.a;
-}
-
-main() {
-  B b = new B();
-  Expect.equals(54, b.a);
-  Expect.equals(42, b.returnSuper());
-  Expect.equals(42, b.returnSuperInClosure()());
-}
diff --git a/tests/language_2/closure/with_super_send_test.dart b/tests/language_2/closure/with_super_send_test.dart
deleted file mode 100644
index 8399b8763d0..00000000000
--- a/tests/language_2/closure/with_super_send_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test a closurized super send.
-
-class Super {
-  m() => "super";
-}
-
-class Sub extends Super {
-  m() => "sub";
-
-  test() {
-    var x;
-    [0].forEach((e) => x = super.m());
-    return x;
-  }
-}
-
-main() {
-  Expect.equals("super", new Sub().test());
-  Expect.equals("super", new Super().m());
-  Expect.equals("sub", new Sub().m());
-}
diff --git a/tests/language_2/compile_time_constant/a_test.dart b/tests/language_2/compile_time_constant/a_test.dart
deleted file mode 100644
index 160abf57a94..00000000000
--- a/tests/language_2/compile_time_constant/a_test.dart
+++ /dev/null
@@ -1,122 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-const m1 = const {'a': 400 + 99};
-const m2 = const {'a': 499, 'b': 42};
-const m3 = const {'m1': m1, 'm2': m2};
-const m4 = const {'z': 9, 'a': 8, 'm': 7};
-const m5 = const {'': 499};
-const m6 = const {'a': 499};
-const m7 = const {};
-
-main() {
-  Expect.equals(499, m1['a']);
-  Expect.equals(null, m1['b']);
-  Expect.listEquals(['a'], m1.keys.toList());
-  Expect.listEquals([499], m1.values.toList());
-  Expect.isTrue(m1.containsKey('a'));
-  Expect.isFalse(m1.containsKey('toString'));
-  Expect.isTrue(m1.containsValue(499));
-  Expect.isFalse(m1.containsValue(42));
-  Expect.isFalse(m1.containsValue(null));
-  var seenKeys = [];
-  var seenValues = [];
-  m1.forEach((key, value) {
-    seenKeys.add(key);
-    seenValues.add(value);
-  });
-  Expect.listEquals(['a'], seenKeys);
-  Expect.listEquals([499], seenValues);
-  Expect.isFalse(m1.isEmpty);
-  Expect.equals(1, m1.length);
-  Expect.throwsUnsupportedError(() => m1.remove('a'));
-  Expect.throwsUnsupportedError(() => m1.remove('b'));
-  Expect.throwsUnsupportedError(() => m1.clear());
-  Expect.throwsUnsupportedError(() => m1['b'] = 42);
-  Expect.throwsUnsupportedError(() => m1['a'] = 499);
-  Expect.throwsUnsupportedError(() => m1.putIfAbsent('a', () => 499));
-  Expect.throwsUnsupportedError(() => m1.putIfAbsent('z', () => 499));
-
-  Expect.equals(499, m2['a']);
-  Expect.equals(42, m2['b']);
-  Expect.equals(null, m2['c']);
-  Expect.listEquals(['a', 'b'], m2.keys.toList());
-  Expect.listEquals([499, 42], m2.values.toList());
-  Expect.isTrue(m2.containsKey('a'));
-  Expect.isTrue(m2.containsKey('b'));
-  Expect.isFalse(m2.containsKey('toString'));
-  Expect.isTrue(m2.containsValue(499));
-  Expect.isTrue(m2.containsValue(42));
-  Expect.isFalse(m2.containsValue(99));
-  Expect.isFalse(m2.containsValue(null));
-  seenKeys = [];
-  seenValues = [];
-  m2.forEach((key, value) {
-    seenKeys.add(key);
-    seenValues.add(value);
-  });
-  Expect.listEquals(['a', 'b'], seenKeys);
-  Expect.listEquals([499, 42], seenValues);
-  Expect.isFalse(m2.isEmpty);
-  Expect.equals(2, m2.length);
-  Expect.throwsUnsupportedError(() => m2.remove('a'));
-  Expect.throwsUnsupportedError(() => m2.remove('b'));
-  Expect.throwsUnsupportedError(() => m2.remove('c'));
-  Expect.throwsUnsupportedError(() => m2.clear());
-  Expect.throwsUnsupportedError(() => m2['a'] = 499);
-  Expect.throwsUnsupportedError(() => m2['b'] = 42);
-  Expect.throwsUnsupportedError(() => m2['c'] = 499);
-  Expect.throwsUnsupportedError(() => m2.putIfAbsent('a', () => 499));
-  Expect.throwsUnsupportedError(() => m2.putIfAbsent('z', () => 499));
-  Expect.throwsUnsupportedError(() => m2['a'] = 499);
-
-  Expect.identical(m3['m1'], m1);
-  Expect.identical(m3['m2'], m2);
-
-  Expect.listEquals(['z', 'a', 'm'], m4.keys.toList());
-  Expect.listEquals([9, 8, 7], m4.values.toList());
-  seenKeys = [];
-  seenValues = [];
-  m4.forEach((key, value) {
-    seenKeys.add(key);
-    seenValues.add(value);
-  });
-  Expect.listEquals(['z', 'a', 'm'], seenKeys);
-  Expect.listEquals([9, 8, 7], seenValues);
-
-  Expect.equals(499, m5['']);
-  Expect.isTrue(m5.containsKey(''));
-  Expect.equals(1, m5.length);
-
-  Expect.identical(m1, m6);
-
-  Expect.isTrue(m7.isEmpty);
-  Expect.equals(0, m7.length);
-  Expect.equals(null, m7['b']);
-  Expect.listEquals([], m7.keys.toList());
-  Expect.listEquals([], m7.values.toList());
-  Expect.isFalse(m7.containsKey('a'));
-  Expect.isFalse(m7.containsKey('toString'));
-  Expect.isFalse(m7.containsValue(499));
-  Expect.isFalse(m7.containsValue(null));
-  seenKeys = [];
-  seenValues = [];
-  m7.forEach((key, value) {
-    seenKeys.add(key);
-    seenValues.add(value);
-  });
-  Expect.listEquals([], seenKeys);
-  Expect.listEquals([], seenValues);
-  Expect.throwsUnsupportedError(() => m7.remove('a'));
-  Expect.throwsUnsupportedError(() => m7.remove('b'));
-  Expect.throwsUnsupportedError(() => m7.clear());
-  Expect.throwsUnsupportedError(() => m7['b'] = 42);
-  Expect.throwsUnsupportedError(() => m7['a'] = 499);
-  Expect.throwsUnsupportedError(() => m7.putIfAbsent('a', () => 499));
-  Expect.throwsUnsupportedError(() => m7.putIfAbsent('z', () => 499));
-}
diff --git a/tests/language_2/compile_time_constant/arguments_runtime_test.dart b/tests/language_2/compile_time_constant/arguments_runtime_test.dart
deleted file mode 100644
index c3cb1d20aad..00000000000
--- a/tests/language_2/compile_time_constant/arguments_runtime_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class A {
-  const A(a);
-  const A.named({a: 42});
-  const A.optional([a]);
-}
-
-main() {
-  const A(1);
-
-
-  const A.named();
-
-
-
-  const A.optional();
-  const A.optional(42);
-
-}
diff --git a/tests/language_2/compile_time_constant/arguments_test.dart b/tests/language_2/compile_time_constant/arguments_test.dart
deleted file mode 100644
index fc30343e28d..00000000000
--- a/tests/language_2/compile_time_constant/arguments_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  const A(a);
-  const A.named({a: 42});
-  const A.optional([a]);
-}
-
-main() {
-  const A(1);
-  const A();
-  //      ^
-  // [analyzer] COMPILE_TIME_ERROR.NOT_ENOUGH_POSITIONAL_ARGUMENTS
-  //     ^^
-  // [cfe] Too few positional arguments: 1 required, 0 given.
-  const A(1, 2);
-  //         ^
-  // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS
-  //     ^^^^^^
-  // [cfe] Too many positional arguments: 1 allowed, but 2 found.
-  const A.named();
-  const A.named(b: 1);
-  //            ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_NAMED_PARAMETER
-  // [cfe] No named parameter with the name 'b'.
-  const A.named(a: 1, a: 2);
-  //                  ^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_NAMED_ARGUMENT
-  // [cfe] Duplicated named argument 'a'.
-  const A.named(a: 1, b: 2);
-  //                  ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_NAMED_PARAMETER
-  // [cfe] No named parameter with the name 'b'.
-  const A.optional();
-  const A.optional(42);
-  const A.optional(42, 54);
-  //                   ^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS
-  //              ^^^^^^^^
-  // [cfe] Too many positional arguments: 1 allowed, but 2 found.
-}
diff --git a/tests/language_2/compile_time_constant/b_test.dart b/tests/language_2/compile_time_constant/b_test.dart
deleted file mode 100644
index 9e070c653c8..00000000000
--- a/tests/language_2/compile_time_constant/b_test.dart
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-const m1 = const {'__proto__': 400 + 99};
-const m2 = const {'a': 499, 'b': 42};
-const m3 = const {'__proto__': 499};
-
-main() {
-  Expect.equals(499, m1['__proto__']);
-  Expect.equals(null, m1['b']);
-  Expect.listEquals(['__proto__'], m1.keys.toList());
-  Expect.listEquals([499], m1.values.toList());
-  Expect.isTrue(m1.containsKey('__proto__'));
-  Expect.isFalse(m1.containsKey('toString'));
-  Expect.isTrue(m1.containsValue(499));
-  Expect.isFalse(m1.containsValue(null));
-  var seenKeys = [];
-  var seenValues = [];
-  m1.forEach((key, value) {
-    seenKeys.add(key);
-    seenValues.add(value);
-  });
-  Expect.listEquals(['__proto__'], seenKeys);
-  Expect.listEquals([499], seenValues);
-  Expect.isFalse(m1.isEmpty);
-  Expect.equals(1, m1.length);
-  Expect.throwsUnsupportedError(() => m1.remove('__proto__'));
-  Expect.throwsUnsupportedError(() => m1.remove('b'));
-  Expect.throwsUnsupportedError(() => m1.clear());
-  Expect.throwsUnsupportedError(() => m1['b'] = 42);
-  Expect.throwsUnsupportedError(() => m1['__proto__'] = 499);
-  Expect.throwsUnsupportedError(() => m1.putIfAbsent('__proto__', () => 499));
-  Expect.throwsUnsupportedError(() => m1.putIfAbsent('z', () => 499));
-
-  Expect.equals(499, m2['a']);
-  Expect.equals(42, m2['b']);
-  Expect.equals(null, m2['c']);
-  Expect.equals(null, m2['__proto__']);
-  Expect.listEquals(['a', 'b'], m2.keys.toList());
-  Expect.listEquals([499, 42], m2.values.toList());
-  Expect.isTrue(m2.containsKey('a'));
-  Expect.isTrue(m2.containsKey('b'));
-  Expect.isFalse(m2.containsKey('toString'));
-  Expect.isFalse(m2.containsKey('__proto__'));
-  Expect.isTrue(m2.containsValue(499));
-  Expect.isTrue(m2.containsValue(42));
-  Expect.isFalse(m2.containsValue(null));
-  seenKeys = [];
-  seenValues = [];
-  m2.forEach((key, value) {
-    seenKeys.add(key);
-    seenValues.add(value);
-  });
-  Expect.listEquals(['a', 'b'], seenKeys);
-  Expect.listEquals([499, 42], seenValues);
-  Expect.isFalse(m2.isEmpty);
-  Expect.equals(2, m2.length);
-  Expect.throwsUnsupportedError(() => m2.remove('a'));
-  Expect.throwsUnsupportedError(() => m2.remove('b'));
-  Expect.throwsUnsupportedError(() => m2.remove('__proto__'));
-  Expect.throwsUnsupportedError(() => m2.clear());
-  Expect.throwsUnsupportedError(() => m2['a'] = 499);
-  Expect.throwsUnsupportedError(() => m2['b'] = 42);
-  Expect.throwsUnsupportedError(() => m2['__proto__'] = 499);
-  Expect.throwsUnsupportedError(() => m2.putIfAbsent('a', () => 499));
-  Expect.throwsUnsupportedError(() => m2.putIfAbsent('__proto__', () => 499));
-  Expect.throwsUnsupportedError(() => m2['a'] = 499);
-
-  Expect.isTrue(identical(m1, m3));
-}
diff --git a/tests/language_2/compile_time_constant/c_runtime_1_test.dart b/tests/language_2/compile_time_constant/c_runtime_1_test.dart
deleted file mode 100644
index 0440b875268..00000000000
--- a/tests/language_2/compile_time_constant/c_runtime_1_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-const m0 = const {499: 400 + 99};
-const m1 = const {
-  "foo" + "bar": 42
-};
-const m2 = const {
-
-};
-const m3 = const {
-
-};
-
-use(x) => x;
-
-main() {
-  use(m0);
-  use(m1);
-  use(m2);
-  use(m3);
-}
diff --git a/tests/language_2/compile_time_constant/c_runtime_test.dart b/tests/language_2/compile_time_constant/c_runtime_test.dart
deleted file mode 100644
index 5b9c99424cc..00000000000
--- a/tests/language_2/compile_time_constant/c_runtime_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-const m0 = const {499: 400 + 99};
-const m1 = const {
-
-};
-const m2 = const {
-
-};
-const m3 = const {
-
-};
-
-use(x) => x;
-
-main() {
-  use(m0);
-  use(m1);
-  use(m2);
-  use(m3);
-}
diff --git a/tests/language_2/compile_time_constant/c_test.dart b/tests/language_2/compile_time_constant/c_test.dart
deleted file mode 100644
index 7626f26a704..00000000000
--- a/tests/language_2/compile_time_constant/c_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-const m0 = const {499: 400 + 99};
-const m1 = const {"foo" + "bar": 42};
-const m2 = const {
-//         ^
-// [cfe] Constant evaluation error:
-  "foo" * 4: 42
-//^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_TYPE_NUM
-};
-const m3 = const {
-  "foo".codeUnitAt(0): 42
-//^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_METHOD_INVOCATION
-//      ^
-// [cfe] Method invocation is not a constant expression.
-};
-
-use(x) => x;
-
-main() {
-  use(m0);
-  use(m1);
-  use(m2);
-  use(m3);
-}
diff --git a/tests/language_2/compile_time_constant/compile_time_constant10_test.dart b/tests/language_2/compile_time_constant/compile_time_constant10_test.dart
deleted file mode 100644
index a0d6a2e7af4..00000000000
--- a/tests/language_2/compile_time_constant/compile_time_constant10_test.dart
+++ /dev/null
@@ -1,112 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that 'identical(a,b)' is a compile-time constant.
-
-class C {
-  final x;
-  const C(this.x);
-  static f3() {}
-  static f4() {}
-}
-
-const i1 = 1;
-const i2 = 2;
-const d1 = 1.5;
-const d2 = 2.5;
-const b1 = true;
-const b2 = false;
-const s1 = "1";
-const s2 = "2";
-const l1 = const [1, 2];
-const l2 = const [2, 3];
-const m1 = const {"x": 1};
-const m2 = const {"x": 2};
-const c1 = const C(1);
-const c2 = const C(2);
-f1() {}
-f2() {}
-const id = identical;
-
-class CT {
-  final x1;
-  final x2;
-  final bool id;
-  const CT(var x1, var x2)
-      : this.x1 = x1,
-        this.x2 = x2,
-        this.id = identical(x1, x2);
-  void test(void expect(a, String b), name) {
-    expect(id, "$name: identical($x1,$x2)");
-  }
-}
-
-const trueTests = const [
-  const CT(2 - 1, i1),
-  const CT(1 + 1, i2),
-  const CT(2.5 - 1.0, d1),
-  const CT(1.5 + 1.0, d2),
-  const CT(false || true, b1),
-  const CT(true && false, b2),
-  const CT('$i1', s1),
-  const CT('$i2', s2),
-  const CT(const [i1, 2], l1),
-  const CT(const [i2, 3], l2),
-  const CT(const {"x": i1}, m1),
-  const CT(const {"x": i2}, m2),
-  const CT(const C(i1), c1),
-  const CT(const C(i2), c2),
-  const CT(f1, f1),
-  const CT(f2, f2),
-  const CT(C.f3, C.f3),
-  const CT(C.f4, C.f4),
-  const CT(id, identical),
-];
-
-const falseTests = const [
-  const CT(i1, i2),
-  const CT(d1, d2),
-  const CT(b1, b2),
-  const CT(s1, s2),
-  const CT(l1, l2),
-  const CT(m1, m2),
-  const CT(c1, c2),
-  const CT(f1, f2),
-  const CT(i1, d1),
-  const CT(d1, b1),
-  const CT(b1, s1),
-  const CT(s1, l1),
-  const CT(l1, m1),
-  const CT(m1, c1),
-  const CT(c1, f1),
-  const CT(f1, C.f3),
-  const CT(C.f3, identical),
-  const CT(identical, i1),
-];
-
-// Not a constant if it's not written 'identical'.
-const idtest = id(i1, i2); // //# 01: compile-time error
-
-// Not a constant if aliased? (Current interpretation, waiting for
-// confirmation).
-class T { //                                    //# 02: compile-time error
-  static const identical = id; //               //# 02: continued
-  static const idtest2 = identical(i1, i2); //  //# 02: continued
-} //                                            //# 02: continued
-
-main() {
-  for (int i = 0; i < trueTests.length; i++) {
-    trueTests[i].test(Expect.isTrue, "true[$i]");
-  }
-  for (int i = 0; i < falseTests.length; i++) {
-    falseTests[i].test(Expect.isFalse, "false[$i]");
-  }
-
-  var x = idtest; // //# 01: continued
-  var x = T.idtest2; // //# 02: continued
-}
diff --git a/tests/language_2/compile_time_constant/compile_time_constant11_test.dart b/tests/language_2/compile_time_constant/compile_time_constant11_test.dart
deleted file mode 100644
index 22f838739f3..00000000000
--- a/tests/language_2/compile_time_constant/compile_time_constant11_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that conditional expression can be a compile-time constant.
-
-import "package:expect/expect.dart";
-
-const C1 = true;
-const C2 = false;
-
-const nephew = C1 ? C2 ? "Tick" : "Trick" : "Track";
-
-main() {
-  const a = true ? 5 : 10;
-  const b = C2 ? "Track" : C1 ? "Trick" : "Tick";
-
-  Expect.equals(5, a);
-  Expect.equals("Trick", nephew);
-  Expect.equals(nephew, b);
-  Expect.identical(nephew, b);
-  var s = const Symbol(nephew);
-  var msg = "Donald is $nephew's uncle.";
-  Expect.equals("Donald is Trick's uncle.", msg);
-}
diff --git a/tests/language_2/compile_time_constant/compile_time_constant12_test.dart b/tests/language_2/compile_time_constant/compile_time_constant12_test.dart
deleted file mode 100644
index 3c05654b7cd..00000000000
--- a/tests/language_2/compile_time_constant/compile_time_constant12_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-const String s = "foo";
-const int i = s.length;
-const int l = "foo".length + 1;
-
-use(x) => x;
-
-main() {
-  use(s);
-  use(i);
-  use(l);
-}
diff --git a/tests/language_2/compile_time_constant/compile_time_constant13_test.dart b/tests/language_2/compile_time_constant/compile_time_constant13_test.dart
deleted file mode 100644
index 7bf371c160c..00000000000
--- a/tests/language_2/compile_time_constant/compile_time_constant13_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  final x; //# 01: ok
-  //# 02: compile-time error
-  var x; //# 03: compile-time error
-  get x => null; //# 04: compile-time error
-  set x(v) {} //# 05: compile-time error
-
-  const A()
-    : x = 'foo' //# 01: continued
-    : x = 'foo' //# 02: continued
-    : x = 'foo' //# 03: continued
-    : x = 'foo' //# 04: continued
-    : x = 'foo' //# 05: continued
-  ;
-}
-
-use(x) => x;
-
-A a = const A();
-
-main() {
-  use(a);
-}
diff --git a/tests/language_2/compile_time_constant/compile_time_constant2_test.dart b/tests/language_2/compile_time_constant/compile_time_constant2_test.dart
deleted file mode 100644
index 3a0325eb392..00000000000
--- a/tests/language_2/compile_time_constant/compile_time_constant2_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-const x = 19;
-const y = 3;
-const z = -5;
-const g1 = x + y;
-const g2 = x * y;
-const g3 = x / y;
-const g4 = x ~/ y;
-const g5 = x << y;
-const g6 = x >> y;
-const g7 = ~z;
-const g8 = -x;
-const g9 = x < y;
-const g10 = x <= y;
-const g11 = x <= x;
-const g12 = x > y;
-const g13 = x >= y;
-const g14 = x >= x;
-const g15 = x == y;
-const g16 = x == x;
-const g17 = x != y;
-const g18 = x != x;
-const g19 = x | y;
-const g20 = x & y;
-const g21 = x ^ y;
-const g22 = g1 + g2 + g4 + g5 + g6 + g7 + g8;
-const g23 = x % y;
-
-main() {
-  Expect.equals(22, g1);
-  Expect.equals(57, g2);
-  Expect.equals(6.333333333333333333333333333, g3);
-  Expect.equals(6, g4);
-  Expect.equals(152, g5);
-  Expect.equals(2, g6);
-  Expect.equals(4, g7);
-  Expect.equals(-19, g8);
-  Expect.equals(false, g9);
-  Expect.equals(false, g10);
-  Expect.equals(true, g11);
-  Expect.equals(true, g12);
-  Expect.equals(true, g13);
-  Expect.equals(true, g14);
-  Expect.equals(false, g15);
-  Expect.equals(true, g16);
-  Expect.equals(true, g17);
-  Expect.equals(false, g18);
-  Expect.equals(19, g19);
-  Expect.equals(3, g20);
-  Expect.equals(16, g21);
-  Expect.equals(224, g22);
-  Expect.equals(1, g23);
-}
diff --git a/tests/language_2/compile_time_constant/compile_time_constant3_test.dart b/tests/language_2/compile_time_constant/compile_time_constant3_test.dart
deleted file mode 100644
index 815b7db6559..00000000000
--- a/tests/language_2/compile_time_constant/compile_time_constant3_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-const x = 19.5;
-const y = 3.3;
-const g1 = x + y;
-const g2 = x * y;
-const g3 = x / y;
-const g4 = x ~/ y;
-const g5 = -x;
-const g6 = x < y;
-const g7 = x <= y;
-const g8 = x <= x;
-const g9 = x > y;
-const g10 = x >= y;
-const g11 = x >= x;
-const g12 = x == y;
-const g13 = x == x;
-const g14 = x != y;
-const g15 = x != x;
-const g16 = g1 + g2 + g3 + g4 + g5;
-const g17 = x % y;
-
-main() {
-  Expect.equals(22.8, g1);
-  Expect.equals(64.35, g2);
-  Expect.equals(5.909090909090909, g3);
-  Expect.equals(5.0, g4);
-  Expect.equals(-19.5, g5);
-  Expect.equals(false, g6);
-  Expect.equals(false, g7);
-  Expect.equals(true, g8);
-  Expect.equals(true, g9);
-  Expect.equals(true, g10);
-  Expect.equals(true, g11);
-  Expect.equals(false, g12);
-  Expect.equals(true, g13);
-  Expect.equals(true, g14);
-  Expect.equals(false, g15);
-  Expect.equals(78.5590909090909, g16);
-  Expect.equals(3.000000000000001, g17);
-}
diff --git a/tests/language_2/compile_time_constant/compile_time_constant5_test.dart b/tests/language_2/compile_time_constant/compile_time_constant5_test.dart
deleted file mode 100644
index 6f8da388d48..00000000000
--- a/tests/language_2/compile_time_constant/compile_time_constant5_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-const x = true;
-const g1 = !true;
-const g2 = !g1;
-
-main() {
-  Expect.equals(false, g1);
-  Expect.equals(true, g2);
-}
diff --git a/tests/language_2/compile_time_constant/compile_time_constant6_test.dart b/tests/language_2/compile_time_constant/compile_time_constant6_test.dart
deleted file mode 100644
index c3538c6ff97..00000000000
--- a/tests/language_2/compile_time_constant/compile_time_constant6_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-const g1 = true;
-const g2 = 499;
-const g3 = "foo";
-const g4 = 3.3;
-const g5 = g1 == g2;
-const g6 = g1 == g3;
-const g7 = g1 == g4;
-const g8 = g2 == g3;
-const g9 = g2 == g4;
-const g10 = g3 == g4;
-const g11 = g1 == g1;
-const g12 = g2 == g2;
-const g13 = g3 == g3;
-const g14 = g4 == g4;
-
-main() {
-  Expect.isFalse(g5);
-  Expect.isFalse(g6);
-  Expect.isFalse(g7);
-  Expect.isFalse(g8);
-  Expect.isFalse(g9);
-  Expect.isFalse(g10);
-  Expect.isTrue(g11);
-  Expect.isTrue(g12);
-  Expect.isTrue(g13);
-  Expect.isTrue(g14);
-}
diff --git a/tests/language_2/compile_time_constant/compile_time_constant7_test.dart b/tests/language_2/compile_time_constant/compile_time_constant7_test.dart
deleted file mode 100644
index de9b1efbd8f..00000000000
--- a/tests/language_2/compile_time_constant/compile_time_constant7_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  const A();
-  toString() => "a";
-}
-
-const a = const A();
-
-main() {
-  Expect.equals("a", a.toString());
-}
diff --git a/tests/language_2/compile_time_constant/compile_time_constant8_test.dart b/tests/language_2/compile_time_constant/compile_time_constant8_test.dart
deleted file mode 100644
index 7fb1e3f440a..00000000000
--- a/tests/language_2/compile_time_constant/compile_time_constant8_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  const A();
-  toString() => "a";
-}
-
-const a = const A<int>();
-const b = const A<double>();
-
-const list1 = const <int>[1, 2];
-// Strong mode change: explicit <dynamic>
-const list2 = const <dynamic>[1, 2];
-main() {
-  Expect.isFalse(identical(a, b));
-  Expect.isFalse(identical(list1, list2));
-}
diff --git a/tests/language_2/compile_time_constant/compile_time_constant9_test.dart b/tests/language_2/compile_time_constant/compile_time_constant9_test.dart
deleted file mode 100644
index 97a37315146..00000000000
--- a/tests/language_2/compile_time_constant/compile_time_constant9_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class B {
-  const B();
-}
-
-class A {
-  var x = const B();
-  A();
-}
-
-main() {
-  Expect.isTrue(identical(new A().x, new A().x));
-}
diff --git a/tests/language_2/compile_time_constant/compile_time_constant_test.dart b/tests/language_2/compile_time_constant/compile_time_constant_test.dart
deleted file mode 100644
index c3d77bece43..00000000000
--- a/tests/language_2/compile_time_constant/compile_time_constant_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Bad {
-  int foo;
-  final int bar =
-      foo
-//    ^^^
-// [analyzer] COMPILE_TIME_ERROR.IMPLICIT_THIS_REFERENCE_IN_INITIALIZER
-// [cfe] Can't access 'this' in a field initializer to read 'foo'.
-      -1;
-  static const int toto =
-      bar
-//    ^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
-// [analyzer] COMPILE_TIME_ERROR.IMPLICIT_THIS_REFERENCE_IN_INITIALIZER
-// [cfe] Can't access 'this' in a field initializer to read 'bar'.
-// [cfe] Undefined name 'bar'.
-      -3;
-}
-
-void use(x) {}
-
-main() {
-  use(new Bad().bar);
-  use(Bad.toto);
-}
diff --git a/tests/language_2/compile_time_constant/d_test.dart b/tests/language_2/compile_time_constant/d_test.dart
deleted file mode 100644
index 10307a6941e..00000000000
--- a/tests/language_2/compile_time_constant/d_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  final x;
-  final y;
-  final z;
-  final t;
-
-  const A(this.z, tt)
-      : y = 499,
-        t = tt,
-        x = 3;
-  const A.named(z, this.t)
-      : y = 400 + z,
-        this.z = z,
-        x = 3;
-  const A.named2(t, z, y, x)
-      : x = t,
-        y = z,
-        z = y,
-        t = x;
-
-  toString() => "A $x $y $z $t";
-}
-
-const a1 = const A(99, 100);
-const a2 = const A.named(99, 100);
-const a3 = const A.named2(1, 2, 3, 4);
-
-main() {
-  Expect.equals(3, a1.x);
-  Expect.equals(499, a1.y);
-  Expect.equals(99, a1.z);
-  Expect.equals(100, a1.t);
-  Expect.equals("A 3 499 99 100", a1.toString());
-
-  Expect.isTrue(identical(a1, a2));
-
-  Expect.equals(1, a3.x);
-  Expect.equals(2, a3.y);
-  Expect.equals(3, a3.z);
-  Expect.equals(4, a3.t);
-  Expect.equals("A 1 2 3 4", a3.toString());
-}
diff --git a/tests/language_2/compile_time_constant/e_test.dart b/tests/language_2/compile_time_constant/e_test.dart
deleted file mode 100644
index 00e65f8439e..00000000000
--- a/tests/language_2/compile_time_constant/e_test.dart
+++ /dev/null
@@ -1,90 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  final x;
-  final y;
-  final z;
-  final t;
-
-  const A([this.z = 99, tt = 100])
-      : y = 499,
-        t = tt,
-        x = 3;
-  const A.n({this.z: 99, tt: 100})
-      : y = 499,
-        t = tt,
-        x = 3;
-  const A.named({z, this.t})
-      : y = 400 + z,
-        this.z = z,
-        x = 3;
-  const A.named2({t, z, y, x})
-      : x = t,
-        y = z,
-        z = y,
-        t = x;
-
-  toString() => "A $x $y $z $t";
-}
-
-const a1 = const A(99, 100);
-const a2 = const A.named(z: 99, t: 100);
-const a3 = const A.named2(t: 1, z: 2, y: 3, x: 4);
-const a4 = const A();
-const a5 = const A(99, 100);
-const a5n = const A.n(tt: 100, z: 99);
-const a6 = const A(1, 2);
-const a6n = const A.n(z: 1, tt: 2);
-const a7 = const A.named(z: 7);
-const a8 = const A.named2();
-const a9 = const A.named2(x: 4, y: 3, z: 2, t: 1);
-const a10 = const A.named2(x: 1, y: 2, z: 3, t: 4);
-
-main() {
-  Expect.equals(3, a1.x);
-  Expect.equals(499, a1.y);
-  Expect.equals(99, a1.z);
-  Expect.equals(100, a1.t);
-  Expect.equals("A 3 499 99 100", a1.toString());
-  Expect.identical(a1, a2);
-  Expect.identical(a1, a4);
-  Expect.identical(a1, a5);
-
-  Expect.equals(1, a3.x);
-  Expect.equals(2, a3.y);
-  Expect.equals(3, a3.z);
-  Expect.equals(4, a3.t);
-  Expect.equals("A 1 2 3 4", a3.toString());
-
-  Expect.equals(3, a6.x);
-  Expect.equals(499, a6.y);
-  Expect.equals(1, a6.z);
-  Expect.equals(2, a6.t);
-  Expect.equals("A 3 499 1 2", a6.toString());
-
-  Expect.equals(3, a7.x);
-  Expect.equals(407, a7.y);
-  Expect.equals(7, a7.z);
-  Expect.equals(null, a7.t);
-  Expect.equals("A 3 407 7 null", a7.toString());
-
-  Expect.equals(null, a8.x);
-  Expect.equals(null, a8.y);
-  Expect.equals(null, a8.y);
-  Expect.equals(null, a8.t);
-  Expect.equals("A null null null null", a8.toString());
-
-  Expect.identical(a3, a9);
-
-  Expect.equals(4, a10.x);
-  Expect.equals(3, a10.y);
-  Expect.equals(2, a10.z);
-  Expect.equals(1, a10.t);
-  Expect.equals("A 4 3 2 1", a10.toString());
-}
diff --git a/tests/language_2/compile_time_constant/f_test.dart b/tests/language_2/compile_time_constant/f_test.dart
deleted file mode 100644
index 80a10cc5d1f..00000000000
--- a/tests/language_2/compile_time_constant/f_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  final x;
-  const A(this.x);
-  const A.named([this.x]);
-  const A.named2([this.x = 2]);
-}
-
-const a1 = const A(0);
-const a2 = const A.named();
-const a3 = const A.named(1);
-const a4 = const A.named2();
-const a5 = const A.named2(3);
-
-main() {
-  Expect.equals(0, a1.x);
-  Expect.equals(null, a2.x);
-  Expect.equals(1, a3.x);
-  Expect.equals(2, a4.x);
-  Expect.equals(3, a5.x);
-}
diff --git a/tests/language_2/compile_time_constant/g_test.dart b/tests/language_2/compile_time_constant/g_test.dart
deleted file mode 100644
index 1a6db2f3c16..00000000000
--- a/tests/language_2/compile_time_constant/g_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  final x;
-  const A(this.x);
-  const A.named([this.x]);
-  const A.named2([this.x = 2]);
-}
-
-class B extends A {
-  const B(x) : super(x + 10);
-  const B.named_() : super.named();
-  const B.named(x) : super.named(x + 10);
-  const B.named2_() : super.named2();
-  const B.named2(x) : super.named2(x + 10);
-}
-
-const b1 = const B(0);
-const b2 = const B.named_();
-const b3 = const B.named(1);
-const b4 = const B.named2_();
-const b5 = const B.named2(3);
-
-main() {
-  Expect.equals(10, b1.x);
-  Expect.equals(null, b2.x);
-  Expect.equals(11, b3.x);
-  Expect.equals(2, b4.x);
-  Expect.equals(13, b5.x);
-}
diff --git a/tests/language_2/compile_time_constant/h_test.dart b/tests/language_2/compile_time_constant/h_test.dart
deleted file mode 100644
index 1def5adeb8e..00000000000
--- a/tests/language_2/compile_time_constant/h_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A implements B {
-  final x;
-  const A(this.x);
-}
-
-abstract class B {
-  const factory B(x) = A;
-}
-
-const dynamic b1 = const B(499);
-
-main() {
-  Expect.equals(499, b1.x);
-}
diff --git a/tests/language_2/compile_time_constant/i_test.dart b/tests/language_2/compile_time_constant/i_test.dart
deleted file mode 100644
index f0bd6a3c6ec..00000000000
--- a/tests/language_2/compile_time_constant/i_test.dart
+++ /dev/null
@@ -1,115 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  final x;
-  const A(this.x);
-  const A.redirect(x) : this(x + 1);
-  const A.optional([this.x = 5]);
-}
-
-class B extends A {
-  const B(x, this.y) : super(x);
-  const B.redirect(x, y) : this(x + 22, y + 22);
-  const B.redirect2(x, y) : this.redirect3(x + 122, y + 122);
-  const B.redirect3(x, y)
-      : this.y = y,
-        super.redirect(x);
-  const B.optional(x, [this.y]) : super(x);
-  const B.optional2([x, this.y]) : super(x);
-  final y;
-}
-
-class C extends B {
-  const C(x, y, this.z) : super(x, y);
-  const C.redirect(x, y, z) : this(x + 33, y + 33, z + 33);
-  const C.redirect2(x, y, z) : this.redirect3(x + 333, y + 333, z + 333);
-  const C.redirect3(x, y, z)
-      : this.z = z,
-        super.redirect2(x, y);
-  const C.optional(x, [y, this.z]) : super(x, y);
-  const C.optional2([x, y, z])
-      : this.z = z,
-        super(x, y);
-  const C.optional3([this.z]) : super.optional2();
-  final z;
-}
-
-const a1 = const A(499);
-const a2 = const A.redirect(10499);
-const a3 = const A.optional();
-const a1b = const A.redirect(498);
-const a3b = const A(5);
-
-const b1 = const B(99499, -99499);
-const b2 = const B.redirect(1234, 5678);
-const b3 = const B.redirect2(112233, 556677);
-const b4 = const B.redirect3(332211, 776655);
-const b5 = const B.optional(43526);
-const b6 = const B.optional2(8642, 9753);
-const b3b = const B(112233 + 122 + 1, 556677 + 122);
-const b6b = const B(8642, 9753);
-
-const c1 = const C(121, 232, 343);
-const c2 = const C.redirect(12321, 23432, 34543);
-const c3 = const C.redirect2(32123, 43234, 54345);
-const c4 = const C.redirect3(313, 424, 535);
-const c5 = const C.optional(191, 181, 171);
-const c6 = const C.optional(-191);
-const c7 = const C.optional2();
-const c8 = const C.optional3(9911);
-const c3b = const C(32123 + 333 + 122 + 1, 43234 + 333 + 122, 54345 + 333);
-
-main() {
-  Expect.equals(499, a1.x);
-  Expect.equals(10500, a2.x);
-  Expect.equals(5, a3.x);
-  Expect.identical(a1, a1b);
-  Expect.identical(a3, a3b);
-
-  Expect.equals(99499, b1.x);
-  Expect.equals(-99499, b1.y);
-  Expect.equals(1256, b2.x);
-  Expect.equals(5700, b2.y);
-  Expect.equals(112233 + 122 + 1, b3.x);
-  Expect.equals(556677 + 122, b3.y);
-  Expect.equals(332211 + 1, b4.x);
-  Expect.equals(776655, b4.y);
-  Expect.equals(43526, b5.x);
-  Expect.equals(null, b5.y);
-  Expect.equals(8642, b6.x);
-  Expect.equals(9753, b6.y);
-  Expect.identical(b3, b3b);
-  Expect.identical(b6, b6b);
-
-  Expect.equals(121, c1.x);
-  Expect.equals(232, c1.y);
-  Expect.equals(343, c1.z);
-  Expect.equals(12321 + 33, c2.x);
-  Expect.equals(23432 + 33, c2.y);
-  Expect.equals(34543 + 33, c2.z);
-  Expect.equals(32123 + 333 + 122 + 1, c3.x);
-  Expect.equals(43234 + 333 + 122, c3.y);
-  Expect.equals(54345 + 333, c3.z);
-  Expect.equals(313 + 122 + 1, c4.x);
-  Expect.equals(424 + 122, c4.y);
-  Expect.equals(535, c4.z);
-  Expect.equals(191, c5.x);
-  Expect.equals(181, c5.y);
-  Expect.equals(171, c5.z);
-  Expect.equals(-191, c6.x);
-  Expect.equals(null, c6.y);
-  Expect.equals(null, c6.z);
-  Expect.equals(null, c7.x);
-  Expect.equals(null, c7.y);
-  Expect.equals(null, c7.z);
-  Expect.equals(null, c8.x);
-  Expect.equals(null, c8.y);
-  Expect.equals(9911, c8.z);
-  Expect.identical(c3, c3b);
-}
diff --git a/tests/language_2/compile_time_constant/j_test.dart b/tests/language_2/compile_time_constant/j_test.dart
deleted file mode 100644
index 384faec5d5d..00000000000
--- a/tests/language_2/compile_time_constant/j_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  final field;
-  const A() : field = 499;
-}
-
-const x = (((1 + 2)));
-const y = (((((x)))));
-const z = (((const A())));
-
-main() {
-  Expect.equals(3, x);
-  Expect.equals(3, y);
-  Expect.equals(499, z.field);
-}
diff --git a/tests/language_2/compile_time_constant/k_runtime_test.dart b/tests/language_2/compile_time_constant/k_runtime_test.dart
deleted file mode 100644
index e20a8dd8c75..00000000000
--- a/tests/language_2/compile_time_constant/k_runtime_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-const x = const {
-
-  'a': 4
-};
-const y = const {
-
-
-};
-
-const z = const {
-
-
-
-  '__proto__': 499
-};
-
-const x2 = const {'a': 4};
-const y2 = const {'a': 14, 'b': 13};
-const z2 = const {'__proto__': 499};
-
-main() {
-  Expect.identical(x2, x);
-
-  Expect.identical(z2, z);
-}
diff --git a/tests/language_2/compile_time_constant/k_test.dart b/tests/language_2/compile_time_constant/k_test.dart
deleted file mode 100644
index 9e498127c14..00000000000
--- a/tests/language_2/compile_time_constant/k_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-const x = const {
-//        ^
-// [cfe] Constant evaluation error:
-  'a': 3,
-  'a': 4
-//^^^
-// [analyzer] COMPILE_TIME_ERROR.EQUAL_KEYS_IN_CONST_MAP
-};
-const y = const {
-//        ^
-// [cfe] Constant evaluation error:
-  'a': 10, 'b': 11, 'a': 12,
-  //                ^^^
-  // [analyzer] COMPILE_TIME_ERROR.EQUAL_KEYS_IN_CONST_MAP
-  'b': 13, 'a': 14
-//^^^
-// [analyzer] COMPILE_TIME_ERROR.EQUAL_KEYS_IN_CONST_MAP
-//         ^^^
-// [analyzer] COMPILE_TIME_ERROR.EQUAL_KEYS_IN_CONST_MAP
-};
-
-const z = const {
-//        ^
-// [cfe] Constant evaluation error:
-  '__proto__': 496,
-  '__proto__': 497,
-//^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.EQUAL_KEYS_IN_CONST_MAP
-  '__proto__': 498,
-//^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.EQUAL_KEYS_IN_CONST_MAP
-  '__proto__': 499
-//^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.EQUAL_KEYS_IN_CONST_MAP
-};
-
-const x2 = const {'a': 4};
-const y2 = const {'a': 14, 'b': 13};
-const z2 = const {'__proto__': 499};
-
-main() {
-  Expect.identical(x2, x);
-  Expect.identical(y2, y);
-  Expect.identical(z2, z);
-}
diff --git a/tests/language_2/compile_time_constant/l_test.dart b/tests/language_2/compile_time_constant/l_test.dart
deleted file mode 100644
index a1b1be9abbd..00000000000
--- a/tests/language_2/compile_time_constant/l_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  final x;
-  const A([x = 499]) : this.x = x;
-}
-
-class B extends A {
-  const B();
-  final z = 99;
-}
-
-class C extends B {
-  const C(this.y);
-  final y;
-}
-
-const v = const C(42);
-
-main() {
-  Expect.equals(42, v.y);
-  Expect.equals(499, v.x);
-  Expect.equals(99, v.z);
-}
diff --git a/tests/language_2/compile_time_constant/m_test.dart b/tests/language_2/compile_time_constant/m_test.dart
deleted file mode 100644
index 76e5a33a94f..00000000000
--- a/tests/language_2/compile_time_constant/m_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  const A();
-  foo([x = const A()]) => x;
-}
-
-const x = const A();
-
-foo([x = const A()]) => x;
-
-main() {
-  Expect.identical(x, foo());
-  Expect.identical(x, x.foo());
-}
diff --git a/tests/language_2/compile_time_constant/n_test.dart b/tests/language_2/compile_time_constant/n_test.dart
deleted file mode 100644
index 65afe53a2aa..00000000000
--- a/tests/language_2/compile_time_constant/n_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  const A();
-  operator ==(x) => x == 499;
-}
-
-var a = const A();
-
-main() {
-  if (const A() != 499) Expect.isTrue("const equality failed");
-  Expect.isTrue(a == 499);
-}
diff --git a/tests/language_2/compile_time_constant/o_runtime_test.dart b/tests/language_2/compile_time_constant/o_runtime_test.dart
deleted file mode 100644
index 244a9c5b567..00000000000
--- a/tests/language_2/compile_time_constant/o_runtime_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test compile-time constants with string-interpolation.
-
-import "package:expect/expect.dart";
-
-const str = "foo";
-const m1 = const {"foo": 499};
-const m2 = const {"$str": 499};
-const m3 = const {
-  // Causes in a duplicate key error.
-
-  "foo": 499
-};
-const m4 = const {
-  // Causes in a duplicate key error.
-
-  "$str": 499
-};
-const m5 = const {"f" "o" "o": 499};
-
-const mm1 = const {"afoo#foo": 499};
-const mm2 = const {"a$str#$str": 499};
-const mm3 = const {"a" "$str" "#" "foo": 499};
-const mm4 = const {"a$str" "#$str": 499};
-
-main() {
-  Expect.equals(1, m1.length);
-  Expect.equals(499, m1["foo"]);
-  Expect.identical(m1, m2);
-  Expect.identical(m1, m3);
-  Expect.identical(m1, m4);
-  Expect.identical(m1, m5);
-
-  Expect.equals(1, mm1.length);
-  Expect.equals(499, mm1["afoo#foo"]);
-  Expect.identical(mm1, mm2);
-  Expect.identical(mm1, mm3);
-  Expect.identical(mm1, mm4);
-}
diff --git a/tests/language_2/compile_time_constant/o_test.dart b/tests/language_2/compile_time_constant/o_test.dart
deleted file mode 100644
index 5301ab7bc24..00000000000
--- a/tests/language_2/compile_time_constant/o_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test compile-time constants with string-interpolation.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-const str = "foo";
-const m1 = const {"foo": 499};
-const m2 = const {"$str": 499};
-const m3 = const {
-//         ^
-// [cfe] Constant evaluation error:
-
-  // Causes in a duplicate key error.
-  "$str": 42,
-  "foo": 499
-//^^^^^
-// [analyzer] COMPILE_TIME_ERROR.EQUAL_KEYS_IN_CONST_MAP
-};
-const m4 = const {
-//         ^
-// [cfe] Constant evaluation error:
-
-  // Causes in a duplicate key error.
-  "foo": 42,
-  "$str": 499
-//^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.EQUAL_KEYS_IN_CONST_MAP
-};
-const m5 = const {"f" "o" "o": 499};
-
-const mm1 = const {"afoo#foo": 499};
-const mm2 = const {"a$str#$str": 499};
-const mm3 = const {"a" "$str" "#" "foo": 499};
-const mm4 = const {"a$str" "#$str": 499};
-
-main() {
-  Expect.equals(1, m1.length);
-  Expect.equals(499, m1["foo"]);
-  Expect.identical(m1, m2);
-  Expect.identical(m1, m3);
-  Expect.identical(m1, m4);
-  Expect.identical(m1, m5);
-
-  Expect.equals(1, mm1.length);
-  Expect.equals(499, mm1["afoo#foo"]);
-  Expect.identical(mm1, mm2);
-  Expect.identical(mm1, mm3);
-  Expect.identical(mm1, mm4);
-}
diff --git a/tests/language_2/compile_time_constant/p_runtime_test.dart b/tests/language_2/compile_time_constant/p_runtime_test.dart
deleted file mode 100644
index fd3f286b5cb..00000000000
--- a/tests/language_2/compile_time_constant/p_runtime_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class A {
-  const A(
-
-      );
-  final x = null;
-}
-
-class B extends A {
-  const B();
-}
-
-var b = const B();
-
-main() {
-  Expect.equals(null, b.x);
-}
diff --git a/tests/language_2/compile_time_constant/p_test.dart b/tests/language_2/compile_time_constant/p_test.dart
deleted file mode 100644
index ccf7f834eb3..00000000000
--- a/tests/language_2/compile_time_constant/p_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  const A(
-    this.x
-    //   ^
-    // [analyzer] COMPILE_TIME_ERROR.FINAL_INITIALIZED_IN_DECLARATION_AND_CONSTRUCTOR
-    // [cfe] 'x' is a final instance variable that was initialized at the declaration.
-    // [cfe] Cannot invoke a non-'const' constructor where a const expression is expected.
-      );
-  final x = null;
-}
-
-class B extends A {
-  const B();
-  //    ^
-  // [analyzer] COMPILE_TIME_ERROR.NO_DEFAULT_SUPER_CONSTRUCTOR
-  // [cfe] The superclass, 'A', has no unnamed constructor that takes no arguments.
-}
-
-var b = const B();
-
-main() {
-  Expect.equals(null, b.x);
-}
diff --git a/tests/language_2/compile_time_constant/q_test.dart b/tests/language_2/compile_time_constant/q_test.dart
deleted file mode 100644
index 25b9f7b2f5f..00000000000
--- a/tests/language_2/compile_time_constant/q_test.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-const double x = 14.0;
-main() {
-  print(x);
-}
diff --git a/tests/language_2/compile_time_constant/r_runtime_test.dart b/tests/language_2/compile_time_constant/r_runtime_test.dart
deleted file mode 100644
index 1a909e44ab8..00000000000
--- a/tests/language_2/compile_time_constant/r_runtime_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-const x =
-
-    "x";
-
-const y = const {
-  0:
-
-      "y"
-};
-
-main() {
-  print(x);
-  print(y);
-  const z =
-
-      1 + 1 + 1;
-  print(z);
-}
diff --git a/tests/language_2/compile_time_constant/r_test.dart b/tests/language_2/compile_time_constant/r_test.dart
deleted file mode 100644
index 16e8b8f806b..00000000000
--- a/tests/language_2/compile_time_constant/r_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-const x =
-    throw "x";
-//  ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
-// [cfe] Throw is not a constant expression.
-
-const y = const {
-  0:
-      throw "y";
-//    ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
-// [cfe] Throw is not a constant expression.
-//    ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_CONSTANT_MAP_VALUE
-//             ^
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-// [cfe] Expected '}' before this.
-};
-
-main() {
-  print(x);
-  print(y);
-  const z =
-      throw 1 + 1 + 1;
-//    ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
-// [cfe] Throw is not a constant expression.
-  print(z);
-}
diff --git a/tests/language_2/compile_time_constant/runtime_test.dart b/tests/language_2/compile_time_constant/runtime_test.dart
deleted file mode 100644
index 31deb6857a9..00000000000
--- a/tests/language_2/compile_time_constant/runtime_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Bad {
-  int foo;
-  final int bar =
-
-      -1;
-  static const int toto =
-
-      -3;
-}
-
-void use(x) {}
-
-main() {
-  use(new Bad().bar);
-  use(Bad.toto);
-}
diff --git a/tests/language_2/compile_time_constant/static2_runtime_test.dart b/tests/language_2/compile_time_constant/static2_runtime_test.dart
deleted file mode 100644
index c0429b13bee..00000000000
--- a/tests/language_2/compile_time_constant/static2_runtime_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class A {
-  final int x;
-
-  const A.a2(this.x);
-
-
-
-  const A.a6(int x) : this.x = x;
-}
-
-
-
-
-
-
-
-
-main() {
-
-
-
-
-
-
-}
diff --git a/tests/language_2/compile_time_constant/static2_test.dart b/tests/language_2/compile_time_constant/static2_test.dart
deleted file mode 100644
index 66760fd2c23..00000000000
--- a/tests/language_2/compile_time_constant/static2_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  final int x;
-  const A.a1() : x = 'foo';
-  //                 ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.FIELD_INITIALIZER_NOT_ASSIGNABLE
-  // [cfe] A value of type 'String' can't be assigned to a variable of type 'int'.
-  const A.a2(this.x);
-  const A.a3([this.x = 'foo']);
-  //                   ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  // [cfe] A value of type 'String' can't be assigned to a variable of type 'int'.
-  const A.a4(String this.x);
-  //         ^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.FIELD_INITIALIZING_FORMAL_NOT_ASSIGNABLE
-  //                     ^
-  // [cfe] The type of parameter 'x', 'String' is not a subtype of the corresponding field's type, 'int'.
-  const A.a5(String x) : this.x = x;
-  //                              ^
-  // [analyzer] COMPILE_TIME_ERROR.FIELD_INITIALIZER_NOT_ASSIGNABLE
-  // [cfe] A value of type 'String' can't be assigned to a variable of type 'int'.
-  const A.a6(int x) : this.x = x;
-}
-
-const a1 = const A.a1();
-//         ^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_CONSTRUCTOR_FIELD_TYPE_MISMATCH
-const a2 = const A.a2('foo');
-//                    ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-// [analyzer] COMPILE_TIME_ERROR.CONST_CONSTRUCTOR_PARAM_TYPE_MISMATCH
-// [cfe] The argument type 'String' can't be assigned to the parameter type 'int'.
-const a3 = const A.a3();
-//         ^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_CONSTRUCTOR_PARAM_TYPE_MISMATCH
-const a4 = const A.a4('foo');
-//                    ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_CONSTRUCTOR_PARAM_TYPE_MISMATCH
-const a5 = const A.a5('foo');
-//         ^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_CONSTRUCTOR_FIELD_TYPE_MISMATCH
-const a6 = const A.a6('foo');
-//                    ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-// [analyzer] COMPILE_TIME_ERROR.CONST_CONSTRUCTOR_PARAM_TYPE_MISMATCH
-// [cfe] The argument type 'String' can't be assigned to the parameter type 'int'.
-
-main() {
-  print(a1);
-  print(a2);
-  print(a3);
-  print(a4);
-  print(a5);
-  print(a6);
-}
diff --git a/tests/language_2/compile_time_constant/static3_runtime_test.dart b/tests/language_2/compile_time_constant/static3_runtime_test.dart
deleted file mode 100644
index c0429b13bee..00000000000
--- a/tests/language_2/compile_time_constant/static3_runtime_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class A {
-  final int x;
-
-  const A.a2(this.x);
-
-
-
-  const A.a6(int x) : this.x = x;
-}
-
-
-
-
-
-
-
-
-main() {
-
-
-
-
-
-
-}
diff --git a/tests/language_2/compile_time_constant/static3_test.dart b/tests/language_2/compile_time_constant/static3_test.dart
deleted file mode 100644
index 3cabc10c2b6..00000000000
--- a/tests/language_2/compile_time_constant/static3_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  final int x;
-  const A.a1() : x = 'foo';
-  //                 ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.FIELD_INITIALIZER_NOT_ASSIGNABLE
-  // [cfe] A value of type 'String' can't be assigned to a variable of type 'int'.
-  const A.a2(this.x);
-  const A.a3([this.x = 'foo']);
-  //                   ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  // [cfe] A value of type 'String' can't be assigned to a variable of type 'int'.
-  const A.a4(String this.x);
-  //         ^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.FIELD_INITIALIZING_FORMAL_NOT_ASSIGNABLE
-  //                     ^
-  // [cfe] The type of parameter 'x', 'String' is not a subtype of the corresponding field's type, 'int'.
-  const A.a5(String x) : this.x = x;
-  //                              ^
-  // [analyzer] COMPILE_TIME_ERROR.FIELD_INITIALIZER_NOT_ASSIGNABLE
-  // [cfe] A value of type 'String' can't be assigned to a variable of type 'int'.
-  const A.a6(int x) : this.x = x;
-}
-
-var a1 = const A.a1();
-//       ^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_CONSTRUCTOR_FIELD_TYPE_MISMATCH
-var a2 = const A.a2('foo');
-//                  ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-// [analyzer] COMPILE_TIME_ERROR.CONST_CONSTRUCTOR_PARAM_TYPE_MISMATCH
-// [cfe] The argument type 'String' can't be assigned to the parameter type 'int'.
-var a3 = const A.a3();
-//       ^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_CONSTRUCTOR_PARAM_TYPE_MISMATCH
-var a4 = const A.a4('foo');
-//                  ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_CONSTRUCTOR_PARAM_TYPE_MISMATCH
-var a5 = const A.a5('foo');
-//       ^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_CONSTRUCTOR_FIELD_TYPE_MISMATCH
-var a6 = const A.a6('foo');
-//                  ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-// [analyzer] COMPILE_TIME_ERROR.CONST_CONSTRUCTOR_PARAM_TYPE_MISMATCH
-// [cfe] The argument type 'String' can't be assigned to the parameter type 'int'.
-
-main() {
-  print(a1);
-  print(a2);
-  print(a3);
-  print(a4);
-  print(a5);
-  print(a6);
-}
diff --git a/tests/language_2/compile_time_constant/static4_test.dart b/tests/language_2/compile_time_constant/static4_test.dart
deleted file mode 100644
index feaa3eef844..00000000000
--- a/tests/language_2/compile_time_constant/static4_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  final _x;
-  const A.a1(
-      String //# 01: compile-time error
-          x)
-      : this.a2(x);
-  const A.a2(
-      String //# 02: compile-time error
-          x)
-      : this.a3(x);
-  const A.a3(
-      String //# 03: compile-time error
-          x)
-      : _x = x;
-}
-
-use(x) => x;
-
-main() {
-  use(const A.a1(0));
-}
diff --git a/tests/language_2/compile_time_constant/static5_test.dart b/tests/language_2/compile_time_constant/static5_test.dart
deleted file mode 100644
index 878515b1806..00000000000
--- a/tests/language_2/compile_time_constant/static5_test.dart
+++ /dev/null
@@ -1,81 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  const A();
-}
-
-class B extends A {
-  const B();
-}
-
-class C extends A {
-  const C();
-  const factory C.d() = D;
-}
-
-class D extends B implements C {
-  const D();
-}
-
-class Test1 {
-  final A x = const A(); //# 01: ok
-  final A x = const B(); //# 02: ok
-  final B x = const A(); //# 03: compile-time error
-  final B x = const C(); //# 04: compile-time error
-  final B x = const C.d(); //# 05: compile-time error
-  const Test1();
-}
-
-// Will be instantiated with U=A and V=B.
-class Test2<U, V> {
-  final U x = const A(); //# 06: compile-time error
-  final U x = const B(); //# 07: compile-time error
-  final V x = const A(); //# 08: compile-time error
-  final V x = const C(); //# 09: compile-time error
-  final V x = const C.d(); //# 10: compile-time error
-  const Test2();
-}
-
-// Will be instantiated with U=A and V=B.
-class Test3<U extends A, V extends B> {
-  final U x = const A(); //# 11: compile-time error
-  final U x = const B(); //# 12: compile-time error
-  final V x = const A(); //# 13: compile-time error
-  final V x = const C(); //# 14: compile-time error
-  final V x = const C.d(); //# 15: compile-time error
-  const Test3();
-}
-
-// Will be instantiated with U=A and V=B.
-class Test4<U extends A, V extends A> {
-  final U x = const A(); //# 16: compile-time error
-  final U x = const B(); //# 17: compile-time error
-  final V x = const A(); //# 18: compile-time error
-  final V x = const C(); //# 19: compile-time error
-  final V x = const C.d(); //# 20: compile-time error
-  const Test4();
-}
-
-// Will be instantiated with U=dynamic and V=dynamic.
-class Test5<U extends A, V extends B> {
-  final U x = const A(); //# 21: compile-time error
-  final U x = const B(); //# 22: compile-time error
-  final V x = const A(); //# 23: compile-time error
-  final V x = const C(); //# 24: compile-time error
-  final V x = const C.d(); //# 25: compile-time error
-  const Test5();
-}
-
-use(x) => x;
-
-main() {
-  use(const Test1());
-  use(const Test2<A, B>());
-  use(const Test3<A, B>());
-  use(const Test4<A, B>());
-  use(const Test5());
-}
diff --git a/tests/language_2/compile_time_constant/static_runtime_test.dart b/tests/language_2/compile_time_constant/static_runtime_test.dart
deleted file mode 100644
index b23bf988f46..00000000000
--- a/tests/language_2/compile_time_constant/static_runtime_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-
-
-
-
-main() {
-
-
-
-}
diff --git a/tests/language_2/compile_time_constant/static_test.dart b/tests/language_2/compile_time_constant/static_test.dart
deleted file mode 100644
index 77740dd2fad..00000000000
--- a/tests/language_2/compile_time_constant/static_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-final int x = 'foo';
-//            ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-// [cfe] A value of type 'String' can't be assigned to a variable of type 'int'.
-const int y = 'foo';
-//            ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-// [cfe] A value of type 'String' can't be assigned to a variable of type 'int'.
-int z = 'foo';
-//      ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-// [cfe] A value of type 'String' can't be assigned to a variable of type 'int'.
-
-main() {
-  print(x);
-  print(y);
-  print(z);
-}
diff --git a/tests/language_2/const/cast1_test.dart b/tests/language_2/const/cast1_test.dart
deleted file mode 100644
index 219be00282e..00000000000
--- a/tests/language_2/const/cast1_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Implicit casts in constants are supported and treated as compile-time errors
-/// if they are not valid.
-
-class A {
-  final int n;
-  const A(dynamic input) : n = input;
-}
-
-main() {
-  print(const A(2)); //# 01: ok
-  print(const A('2')); //# 02: compile-time error
-}
diff --git a/tests/language_2/const/cast2_test.dart b/tests/language_2/const/cast2_test.dart
deleted file mode 100644
index f4bcccf7568..00000000000
--- a/tests/language_2/const/cast2_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Explicit casts in constants are supported and treated as compile-time errors
-/// if they are not valid.
-
-class A {
-  final int n;
-  const A(dynamic input) : n = input as int;
-}
-
-main() {
-  print(const A(2)); //# 01: ok
-  print(const A('2')); //# 02: compile-time error
-}
diff --git a/tests/language_2/const/cast3_test.dart b/tests/language_2/const/cast3_test.dart
deleted file mode 100644
index 173abb842c4..00000000000
--- a/tests/language_2/const/cast3_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Casts in constants correctly substitute type variables.
-
-class A {
-  const A();
-}
-
-class B implements A {
-  const B();
-}
-
-class M<T extends A> {
-  final T a;
-  const M(dynamic t) : a = t; // adds implicit cast `as T`
-}
-
-main() {
-  print(const M<B>(const B()));
-}
diff --git a/tests/language_2/const/cast4_test.dart b/tests/language_2/const/cast4_test.dart
deleted file mode 100644
index 3b3de5eb676..00000000000
--- a/tests/language_2/const/cast4_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Casts in constants correctly substitute type variables.
-
-class A {
-  const A();
-}
-
-class B implements A {
-  const B();
-}
-
-class M<T extends A> {
-  final T a;
-  const M(dynamic t) : a = t; // adds implicit cast `as T`
-}
-
-class N<S extends A> extends M<S> {
-  const N(dynamic t) : super(t);
-}
-
-main() {
-  print(const N<B>(const B()));
-}
diff --git a/tests/language_2/const/conditional_runtime_test.dart b/tests/language_2/const/conditional_runtime_test.dart
deleted file mode 100644
index 2567385b968..00000000000
--- a/tests/language_2/const/conditional_runtime_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test for conditionals as compile-time constants.
-
-import 'package:expect/expect.dart';
-
-class Marker {
-  final field;
-  const Marker(this.field);
-}
-
-var var0 = const Marker(0);
-var var1 = const Marker(1);
-const const0 = const Marker(0);
-const const1 = const Marker(1);
-
-const trueConst = true;
-const falseConst = false;
-var nonConst = true;
-const zeroConst = 0;
-
-const cond1 = trueConst ? const0 : const1;
-
-
-
-const cond2 = falseConst ? const0 : const1;
-
-
-
-
-
-
-
-
-
-
-
-void main() {
-  Expect.identical(var0, cond1);
-
-
-
-  Expect.identical(var1, cond2);
-
-
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/const/conditional_test.dart b/tests/language_2/const/conditional_test.dart
deleted file mode 100644
index 83c09ca2094..00000000000
--- a/tests/language_2/const/conditional_test.dart
+++ /dev/null
@@ -1,112 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for conditionals as compile-time constants.
-
-import 'package:expect/expect.dart';
-
-class Marker {
-  final field;
-  const Marker(this.field);
-}
-
-var var0 = const Marker(0);
-var var1 = const Marker(1);
-const const0 = const Marker(0);
-const const1 = const Marker(1);
-
-const trueConst = true;
-const falseConst = false;
-var nonConst = true;
-const zeroConst = 0;
-
-const cond1 = trueConst ? const0 : const1;
-const cond1a = trueConst ? nonConst : const1;
-//                       ^
-// [cfe] Constant evaluation error:
-//                         ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
-// [cfe] Not a constant expression.
-const cond1b = trueConst ? const0 : nonConst;
-//                                  ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
-// [cfe] Not a constant expression.
-
-const cond2 = falseConst ? const0 : const1;
-const cond2a = falseConst ? nonConst : const1;
-//                          ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
-// [cfe] Not a constant expression.
-const cond2b = falseConst ? const0 : nonConst;
-//                        ^
-// [cfe] Constant evaluation error:
-//                                   ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
-// [cfe] Not a constant expression.
-
-const cond3 = nonConst ? const0 : const1;
-//            ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
-// [cfe] Not a constant expression.
-//                     ^
-// [cfe] Constant evaluation error:
-const cond3a = nonConst ? nonConst : const1;
-//             ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
-// [cfe] Not a constant expression.
-//                      ^
-// [cfe] Constant evaluation error:
-//                        ^
-// [cfe] Not a constant expression.
-const cond3b = nonConst ? const0 : nonConst;
-//             ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
-// [cfe] Not a constant expression.
-//                      ^
-// [cfe] Constant evaluation error:
-//                                 ^
-// [cfe] Not a constant expression.
-
-const cond4 = zeroConst ? const0 : const1;
-//            ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_TYPE_BOOL
-// [cfe] A value of type 'int' can't be assigned to a variable of type 'bool'.
-//            ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_BOOL_CONDITION
-const cond4a = zeroConst ? nonConst : const1;
-//             ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_TYPE_BOOL
-// [cfe] A value of type 'int' can't be assigned to a variable of type 'bool'.
-//             ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_BOOL_CONDITION
-//                         ^
-// [cfe] Not a constant expression.
-const cond4b = zeroConst ? const0 : nonConst;
-//             ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_TYPE_BOOL
-// [cfe] A value of type 'int' can't be assigned to a variable of type 'bool'.
-//             ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_BOOL_CONDITION
-//                                  ^
-// [cfe] Not a constant expression.
-
-void main() {
-  Expect.identical(var0, cond1);
-  Expect.identical(nonConst, cond1a);
-  Expect.identical(var0, cond1b);
-
-  Expect.identical(var1, cond2);
-  Expect.identical(var1, cond2a);
-  Expect.identical(nonConst, cond2b);
-
-  Expect.identical(var0, cond3);
-  Expect.identical(nonConst, cond3a);
-  Expect.identical(var0, cond3b);
-
-  Expect.identical(var1, cond4);
-  Expect.identical(var1, cond4a);
-  Expect.identical(nonConst, cond4b);
-}
diff --git a/tests/language_2/const/const2_test.dart b/tests/language_2/const/const2_test.dart
deleted file mode 100644
index fca62632e49..00000000000
--- a/tests/language_2/const/const2_test.dart
+++ /dev/null
@@ -1,107 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=
-// VMOptions=--compile_all
-
-// @dart = 2.9
-
-// Exercises language constructs that require compile time constants
-
-// Initialize with different literal types
-const b = true;
-const s = "apple";
-const i = 1;
-const d = 3.3;
-const h = 0xf;
-const n = null;
-const aList = const [1, 2, 3]; // array literal
-const aMap = const {"1": "one", "2": "banana"}; // map literal
-
-const INT_LIT = 5;
-const INT_LIT_REF = INT_LIT;
-const DOUBLE_LIT = 1.5;
-const BOOL_LIT = true;
-const STRING_LIT = "Hello";
-
-const BOP1_0 = INT_LIT + 1;
-const BOP1_1 = 1 + INT_LIT;
-const BOP1_2 = INT_LIT - 1;
-const BOP1_3 = 1 - INT_LIT;
-const BOP1_4 = INT_LIT * 1;
-const BOP1_5 = 1 * INT_LIT;
-const BOP1_6 = INT_LIT / 1;
-const BOP1_7 = 1 / INT_LIT;
-const BOP2_0 = DOUBLE_LIT + 1.5;
-const BOP2_1 = 1.5 + DOUBLE_LIT;
-const BOP2_2 = DOUBLE_LIT - 1.5;
-const BOP2_3 = 1.5 - DOUBLE_LIT;
-const BOP2_4 = DOUBLE_LIT * 1.5;
-const BOP2_5 = 1.5 * DOUBLE_LIT;
-const BOP2_6 = DOUBLE_LIT / 1.5;
-const BOP2_7 = 1.5 / DOUBLE_LIT;
-const BOP3_0 = 2 < INT_LIT;
-const BOP3_1 = INT_LIT < 2;
-const BOP3_2 = 2 > INT_LIT;
-const BOP3_3 = INT_LIT > 2;
-const BOP3_4 = 2 < DOUBLE_LIT;
-const BOP3_5 = DOUBLE_LIT < 2;
-const BOP3_6 = 2 > DOUBLE_LIT;
-const BOP3_7 = DOUBLE_LIT > 2;
-const BOP3_8 = 2 <= INT_LIT;
-const BOP3_9 = INT_LIT <= 2;
-const BOP3_10 = 2 >= INT_LIT;
-const BOP3_11 = INT_LIT >= 2;
-const BOP3_12 = 2.0 <= DOUBLE_LIT;
-const BOP3_13 = DOUBLE_LIT <= 2.0;
-const BOP3_14 = 2.0 >= DOUBLE_LIT;
-const BOP3_15 = DOUBLE_LIT >= 2;
-const BOP4_0 = 5 % INT_LIT;
-const BOP4_1 = INT_LIT % 5;
-const BOP4_2 = 5.0 % DOUBLE_LIT;
-const BOP4_3 = DOUBLE_LIT % 5.0;
-const BOP5_0 = 0x80 & 0x04;
-const BOP5_1 = 0x80 | 0x04;
-const BOP5_2 = 0x80 << 0x04;
-const BOP5_3 = 0x80 >> 0x04;
-const BOP5_4 = 0x80 ~/ 0x04;
-const BOP5_5 = 0x80 ^ 0x04;
-const BOP6 = BOOL_LIT && true;
-const BOP7 = false || BOOL_LIT;
-const BOP8 = STRING_LIT == "World!";
-const BOP9 = "Hello" != STRING_LIT;
-const BOP10 = INT_LIT == INT_LIT_REF;
-const BOP11 = BOOL_LIT != true;
-
-// Multiple binary expressions
-const BOP20 = 1 * INT_LIT / 3 + INT_LIT + 9;
-
-// Parenthesized expressions
-const BOP30 = (1 > 2);
-const BOP31 = (1 * 2) + 3;
-const BOP32 = 3 + (1 * 2);
-
-// Unary expressions
-const UOP1_0 = !BOOL_LIT;
-const UOP1_1 = BOOL_LIT || !true;
-const UOP1_2 = !BOOL_LIT || true;
-const UOP1_3 = !(BOOL_LIT && true);
-const UOP2_0 = ~0xf0;
-const UOP2_1 = ~INT_LIT;
-const UOP2_2 = ~INT_LIT & 123;
-const UOP2_3 = ~(INT_LIT | 0xff);
-const UOP3_0 = -0xf0;
-const UOP3_1 = -INT_LIT;
-const UOP3_2 = -INT_LIT + 123;
-const UOP3_3 = -(INT_LIT * 0xff);
-const UOP3_4 = -0xf0;
-const UOP3_5 = -DOUBLE_LIT;
-const UOP3_6 = -DOUBLE_LIT + 123;
-const UOP3_7 = -(DOUBLE_LIT * 0xff);
-
-class A {
-  const A();
-  static const a = const A(); // Assignment from Constant constructor OK
-}
-
-main() {}
diff --git a/tests/language_2/const/const3_test.dart b/tests/language_2/const/const3_test.dart
deleted file mode 100644
index bc2818a5004..00000000000
--- a/tests/language_2/const/const3_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check that initializers of const fields can be declared out of order.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-const P = 2 * (O - N);
-const N = 1;
-const O = 1 + 3;
-
-int main() {
-  Expect.equals(1, N);
-  Expect.equals(4, O);
-  Expect.equals(6, P);
-}
diff --git a/tests/language_2/const/const4_lib.dart b/tests/language_2/const/const4_lib.dart
deleted file mode 100644
index e0ca165e491..00000000000
--- a/tests/language_2/const/const4_lib.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// See CTConst4Test.dart
-
-// @dart = 2.9
-
-library CTConst4Lib;
-
-const B = 1;
diff --git a/tests/language_2/const/const4_test.dart b/tests/language_2/const/const4_test.dart
deleted file mode 100644
index d69275bf9eb..00000000000
--- a/tests/language_2/const/const4_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check compile-time constant library references with prefixes
-
-// @dart = 2.9
-
-library CTConst4Test;
-
-import "package:expect/expect.dart";
-import "const4_lib.dart" as mylib;
-
-const A = mylib.B;
-
-main() {
-  Expect.equals(1, A);
-}
diff --git a/tests/language_2/const/const_locals_constant_locals_test.dart b/tests/language_2/const/const_locals_constant_locals_test.dart
deleted file mode 100644
index 76a85f83214..00000000000
--- a/tests/language_2/const/const_locals_constant_locals_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that constant local variables have constant initializers.
-
-import "package:expect/expect.dart";
-
-void main() {
-  const c1;
-  //    ^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_NOT_INITIALIZED
-  // [cfe] The const variable 'c1' must be initialized.
-  const c2 = 0;
-  const c3 = field;
-  //         ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
-  // [cfe] Constant evaluation error:
-  // [cfe] Not a constant expression.
-  const c4 = finalField;
-  //         ^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
-  // [cfe] Constant evaluation error:
-  // [cfe] Not a constant expression.
-  const c5 = constField;
-  const c6 = method();
-  //         ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_METHOD_INVOCATION
-  // [cfe] Method invocation is not a constant expression.
-  const c7 = new Class();
-  //         ^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
-  // [cfe] New expression is not a constant expression.
-  //             ^
-  // [cfe] New expression is not a constant expression.
-  const c8 = const Class();
-}
-
-var field = 0;
-
-final finalField = 0;
-
-const constField = 0;
-
-method() => 0;
-
-class Class {
-  const Class();
-}
diff --git a/tests/language_2/const/const_locals_runtime_test.dart b/tests/language_2/const/const_locals_runtime_test.dart
deleted file mode 100644
index ad0225d0b48..00000000000
--- a/tests/language_2/const/const_locals_runtime_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that constant local variables have constant initializers.
-
-import "package:expect/expect.dart";
-
-void main() {
-
-  const c2 = 0;
-
-
-  const c5 = constField;
-
-
-  const c8 = const Class();
-}
-
-var field = 0;
-
-final finalField = 0;
-
-const constField = 0;
-
-method() => 0;
-
-class Class {
-  const Class();
-}
diff --git a/tests/language_2/const/const_test.dart b/tests/language_2/const/const_test.dart
deleted file mode 100644
index ab9920d3797..00000000000
--- a/tests/language_2/const/const_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check const classes.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class AConst {
-  const AConst() : b_ = 3;
-  final int b_;
-}
-
-class BConst {
-  const BConst();
-  set foo(value) {}
-  get foo {
-    return 5;
-  }
-
-  operator [](ix) {
-    return ix;
-  }
-
-  operator []=(ix, value) {}
-}
-
-testMain() {
-  var o = const AConst();
-  Expect.equals(3, o.b_);
-
-  var x = (const BConst()).foo++;
-  Expect.equals(5, x);
-
-  var y = (const BConst())[5]++;
-  Expect.equals(5, y);
-}
-
-main() {
-  for (int i = 0; i < 20; i++) {
-    testMain();
-  }
-}
diff --git a/tests/language_2/const/constant_dag_test.dart b/tests/language_2/const/constant_dag_test.dart
deleted file mode 100644
index 22481877227..00000000000
--- a/tests/language_2/const/constant_dag_test.dart
+++ /dev/null
@@ -1,69 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test the efficient processing of constants that are DAGs.
-//
-// This test requires processing a constant that is a DAG of N nodes (N=40). If
-// the DAG is traversed as a tree, it will require exponential node visits and
-// take time O(2^N) i.e. 2^40, and the test will time out.
-
-main() {
-  Expect.equals(40, n40.lengthA);
-  Expect.equals(40, n40.lengthB);
-}
-
-class Node {
-  final Node a;
-  final Node b;
-  const Node(this.a, this.b);
-
-  int get lengthA => a == null ? 0 : 1 + a.lengthA;
-  int get lengthB => b == null ? 0 : 1 + b.lengthB;
-}
-
-const n0 = Node(null, null);
-const n1 = Node(n0, n0);
-const n2 = Node(n1, n1);
-const n3 = Node(n2, n2);
-const n4 = Node(n3, n3);
-const n5 = Node(n4, n4);
-const n6 = Node(n5, n5);
-const n7 = Node(n6, n6);
-const n8 = Node(n7, n7);
-const n9 = Node(n8, n8);
-const n10 = Node(n9, n9);
-const n11 = Node(n10, n10);
-const n12 = Node(n11, n11);
-const n13 = Node(n12, n12);
-const n14 = Node(n13, n13);
-const n15 = Node(n14, n14);
-const n16 = Node(n15, n15);
-const n17 = Node(n16, n16);
-const n18 = Node(n17, n17);
-const n19 = Node(n18, n18);
-const n20 = Node(n19, n19);
-const n21 = Node(n20, n20);
-const n22 = Node(n21, n21);
-const n23 = Node(n22, n22);
-const n24 = Node(n23, n23);
-const n25 = Node(n24, n24);
-const n26 = Node(n25, n25);
-const n27 = Node(n26, n26);
-const n28 = Node(n27, n27);
-const n29 = Node(n28, n28);
-const n30 = Node(n29, n29);
-const n31 = Node(n30, n30);
-const n32 = Node(n31, n31);
-const n33 = Node(n32, n32);
-const n34 = Node(n33, n33);
-const n35 = Node(n34, n34);
-const n36 = Node(n35, n35);
-const n37 = Node(n36, n36);
-const n38 = Node(n37, n37);
-const n39 = Node(n38, n38);
-const n40 = Node(n39, n39);
diff --git a/tests/language_2/const/constants_test.dart b/tests/language_2/const/constants_test.dart
deleted file mode 100644
index b6d1838256e..00000000000
--- a/tests/language_2/const/constants_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class C {
-  factory C() => null;
-}
-
-const
-// [error column 1, length 5]
-// [analyzer] SYNTACTIC_ERROR.EXTRANEOUS_MODIFIER
-// [cfe] Can't have modifier 'const' here.
-t() => null;
-
-const
-// [error column 1, length 5]
-// [analyzer] SYNTACTIC_ERROR.EXTRANEOUS_MODIFIER
-// [cfe] Can't have modifier 'const' here.
-get v => null;
-
-main() {
-  const
-      dynamic x = t();
-      //          ^^^
-      // [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_METHOD_INVOCATION
-      // [cfe] Method invocation is not a constant expression.
-  const y = const C();
-  //        ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
-  // [analyzer] COMPILE_TIME_ERROR.CONST_WITH_NON_CONST
-  //              ^
-  // [cfe] Cannot invoke a non-'const' factory where a const expression is expected.
-  const
-      dynamic z = v;
-      //          ^
-      // [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
-      // [cfe] Constant evaluation error:
-}
diff --git a/tests/language_2/const/constructor2_test.dart b/tests/language_2/const/constructor2_test.dart
deleted file mode 100644
index 008905a3c57..00000000000
--- a/tests/language_2/const/constructor2_test.dart
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 14348.
-
-class A<T> {
-  const A();
-}
-
-class B<S> extends A<S> {
-  const B();
-}
-
-class C<U> {
-  final A<U> a;
-
-  const C(A<U> this.a);
-  const C.optional([A<U> this.a]);
-  const C.named({A<U> this.a});
-  const C.untyped(this.a);
-  const C.subtyped(B<U> this.a);
-  const factory C.redirecting(B<U> a) = D<U>;
-}
-
-class D<U> extends C<U> {
-  const D(B<U> b) : super(b);
-}
-
-class E {
-  const factory E.redirecting1(int a) = F<int>;
-  const factory E.redirecting2(int a) = F<int>.redirecting;
-  const factory E.redirecting3(double a) = F<double>.redirecting;
-}
-
-class F<V> implements E {
-  final V field;
-
-  const F(this.field);
-  const factory F.redirecting(V field) = G<V>;
-}
-
-class G<W> implements F<W> {
-  final W field;
-  const G(W field) : this.field = field;
-}
-
-main() {
-  const A<int> a = const B<int>();
-
-  const C(a); //# 01: ok
-  const C.optional(a); //# 02: ok
-  const C.named(a: a); //# 03: ok
-  const C.untyped(a); //# 04: ok
-
-  // Can't infer type argument U for C since a has type A and the argument has
-  // type B<U>, not A<U>. So tries to assign A<int> to B<dynamic> which fails.
-  const C.subtyped(a); //# 05: compile-time error
-  const C.redirecting(a); //# 06: compile-time error
-
-  const C<int>(a); //# 07: ok
-  const C<int>.optional(a); //# 08: ok
-  const C<int>.named(a: a); //# 09: ok
-  const C<int>.untyped(a); //# 10: ok
-  const C<int>.subtyped(a); //# 11: ok
-  const C<int>.redirecting(a); //# 12: ok
-
-  const C<double>(a); //# 13: compile-time error
-  const C<double>.optional(a); //# 14: compile-time error
-  const C<double>.named(a: a); //# 15: compile-time error
-  const C<double>.untyped(a); //# 16: compile-time error
-  const C<double>.subtyped(a); //# 17: compile-time error
-  const C<double>.redirecting(a); //# 18: compile-time error
-
-  const E.redirecting1(0); //# 19: ok
-  const E.redirecting1(''); //# 20: compile-time error
-  const E.redirecting2(0); //# 21: ok
-  const E.redirecting2(''); //# 22: compile-time error
-  const E.redirecting3(0.0); //# 23: ok
-  const E.redirecting3(''); //# 24: compile-time error
-}
diff --git a/tests/language_2/const/constructor3_runtime_1_test.dart b/tests/language_2/const/constructor3_runtime_1_test.dart
deleted file mode 100644
index f918dafd15a..00000000000
--- a/tests/language_2/const/constructor3_runtime_1_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class C {
-  final double d;
-  const C(this.d);
-}
-
-class D extends C {
-  const D(var d) : super(d);
-}
-
-const intValue = 0;
-const c = const C(0.0);
-
-
-
-
-main() {
-  print(c);
-
-
-
-}
diff --git a/tests/language_2/const/constructor3_runtime_2_test.dart b/tests/language_2/const/constructor3_runtime_2_test.dart
deleted file mode 100644
index 97b5054b14e..00000000000
--- a/tests/language_2/const/constructor3_runtime_2_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class C {
-  final double d;
-  const C(this.d);
-}
-
-class D extends C {
-  const D(var d) : super(d);
-}
-
-const intValue = 0;
-
-
-const e = const D(0.0);
-
-
-main() {
-
-
-  print(e);
-
-}
diff --git a/tests/language_2/const/constructor3_runtime_test.dart b/tests/language_2/const/constructor3_runtime_test.dart
deleted file mode 100644
index 5269804ff4e..00000000000
--- a/tests/language_2/const/constructor3_runtime_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class C {
-  final double d;
-  const C(this.d);
-}
-
-class D extends C {
-  const D(var d) : super(d);
-}
-
-const intValue = 0;
-
-
-
-
-
-main() {
-
-
-
-
-}
diff --git a/tests/language_2/const/constructor3_test.dart b/tests/language_2/const/constructor3_test.dart
deleted file mode 100644
index a0dd22d6cc1..00000000000
--- a/tests/language_2/const/constructor3_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class C {
-  final double d;
-  const C(this.d);
-}
-
-class D extends C {
-  const D(var d) : super(d);
-}
-
-const intValue = 0;
-const c = const C(0.0);
-const d = const C(intValue);
-//                ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-// [analyzer] COMPILE_TIME_ERROR.CONST_CONSTRUCTOR_PARAM_TYPE_MISMATCH
-// [cfe] The argument type 'int' can't be assigned to the parameter type 'double'.
-const e = const D(0.0);
-const f = const D(intValue);
-//        ^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_THROWS_EXCEPTION
-//              ^
-// [cfe] Constant evaluation error:
-
-main() {
-  print(c);
-  print(d);
-  print(e);
-  print(f);
-}
diff --git a/tests/language_2/const/constructor_mixin2_runtime_test.dart b/tests/language_2/const/constructor_mixin2_runtime_test.dart
deleted file mode 100644
index 5838d973476..00000000000
--- a/tests/language_2/const/constructor_mixin2_runtime_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Mixin {
-  var nonFinalField;
-}
-
-class A {
-  const A(foo);
-}
-
-class B extends A
-
-{
-  const B(foo) : super(foo);
-}
-
-main() {
-  var a = const B(42);
-
-}
diff --git a/tests/language_2/const/constructor_mixin2_test.dart b/tests/language_2/const/constructor_mixin2_test.dart
deleted file mode 100644
index de5733350e9..00000000000
--- a/tests/language_2/const/constructor_mixin2_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Mixin {
-  var nonFinalField;
-}
-
-class A {
-  const A(foo);
-}
-
-class B extends A
-    with Mixin
-{
-  const B(foo) : super(foo);
-//      ^
-// [analyzer] COMPILE_TIME_ERROR.CONST_CONSTRUCTOR_WITH_MIXIN_WITH_FIELD
-//               ^
-// [cfe] A constant constructor can't call a non-constant super constructor.
-}
-
-main() {
-  var a = const B(42);
-  a.nonFinalField = 54;
-}
diff --git a/tests/language_2/const/constructor_mixin3_test.dart b/tests/language_2/const/constructor_mixin3_test.dart
deleted file mode 100644
index b4797885ef8..00000000000
--- a/tests/language_2/const/constructor_mixin3_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Mixin {}
-
-class A {
-  const A();
-}
-
-class B extends A with Mixin {
-  const B();
-}
-
-main() {
-  var a = const B();
-}
diff --git a/tests/language_2/const/constructor_mixin_test.dart b/tests/language_2/const/constructor_mixin_test.dart
deleted file mode 100644
index 316f9751282..00000000000
--- a/tests/language_2/const/constructor_mixin_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Mixin {}
-
-class A {
-  const A(foo);
-}
-
-class B extends A with Mixin {
-  const B(foo) : super(foo);
-}
-
-main() {
-  var a = const B(42);
-}
diff --git a/tests/language_2/const/constructor_nonconst_field_runtime_test.dart b/tests/language_2/const/constructor_nonconst_field_runtime_test.dart
deleted file mode 100644
index a261ec05f8a..00000000000
--- a/tests/language_2/const/constructor_nonconst_field_runtime_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class A {
-
-  final int j = 1;
-  const A();
-}
-
-int f() {
-  return 3;
-}
-
-main() {
-  const A().j;
-}
diff --git a/tests/language_2/const/constructor_nonconst_field_test.dart b/tests/language_2/const/constructor_nonconst_field_test.dart
deleted file mode 100644
index ea7908f66e8..00000000000
--- a/tests/language_2/const/constructor_nonconst_field_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  final int i = f();
-  //            ^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_METHOD_INVOCATION
-  // [cfe] Method invocation is not a constant expression.
-  final int j = 1;
-  const A();
-//^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_CONSTRUCTOR_WITH_FIELD_INITIALIZED_BY_NON_CONST
-}
-
-int f() {
-  return 3;
-}
-
-main() {
-  const A().j;
-}
diff --git a/tests/language_2/const/constructor_nonconst_param_runtime_test.dart b/tests/language_2/const/constructor_nonconst_param_runtime_test.dart
deleted file mode 100644
index d6fc8c8cfb5..00000000000
--- a/tests/language_2/const/constructor_nonconst_param_runtime_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class A {
-  const A(int a);
-}
-
-class B {
-
-  const B(dynamic v) //
-
-  ;
-}
-
-void main() {
-  const B("");
-}
diff --git a/tests/language_2/const/constructor_nonconst_param_test.dart b/tests/language_2/const/constructor_nonconst_param_test.dart
deleted file mode 100644
index 50f8fd705e2..00000000000
--- a/tests/language_2/const/constructor_nonconst_param_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  const A(int a);
-}
-
-class B {
-  final a;
-  const B(dynamic v) //
-      : a = A(v)
-      //    ^^^^
-      // [analyzer] COMPILE_TIME_ERROR.INVALID_CONSTANT
-      // [cfe] Constant evaluation error:
-      // [cfe] Constant expression expected.
-  ;
-}
-
-void main() {
-  const B("");
-//^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_CONSTANT
-}
diff --git a/tests/language_2/const/constructor_runtime_test.dart b/tests/language_2/const/constructor_runtime_test.dart
deleted file mode 100644
index 9d19d3c0751..00000000000
--- a/tests/language_2/const/constructor_runtime_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  final int x;
-  const A.named() : x = 42;
-  A() : x = null;
-}
-
-main() {
-  Expect.equals(42, (const A<int>.named()).x);
-  Expect.equals(42, (new A<int>.named()).x);
-
-}
diff --git a/tests/language_2/const/constructor_super2_test.dart b/tests/language_2/const/constructor_super2_test.dart
deleted file mode 100644
index ca6cc3396fb..00000000000
--- a/tests/language_2/const/constructor_super2_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class A {
-  final a;
-
-  const A(this.a);
-}
-
-class B extends A {
-  final b;
-
-  const B(a, this.b) : super(a);
-}
-
-@pragma('dart2js:noInline')
-foo() => const B(1, 2);
-
-@pragma('dart2js:noInline')
-bar() => const B(2, 2);
-
-void main() {
-  Expect.notEquals(foo(), bar());
-  Expect.notEquals(foo().a, bar().a);
-  Expect.equals(foo().b, bar().b);
-}
diff --git a/tests/language_2/const/constructor_super_runtime_test.dart b/tests/language_2/const/constructor_super_runtime_test.dart
deleted file mode 100644
index 840652006ae..00000000000
--- a/tests/language_2/const/constructor_super_runtime_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class A {
-  final a;
-  A(this.a); // Not const.
-  const A.five() : a = 5;
-}
-
-class B extends A {
-  final b;
-  B(x)
-      : b = x + 1,
-        super(x);
-
-  // Const constructor cannot call non-const super constructor.
-
-}
-
-class C extends A {
-  C() : super(0);
-  // Implicit call to non-const constructor A(x).
-
-}
-
-main() {
-
-  var b1 = new B(0);
-
-}
diff --git a/tests/language_2/const/constructor_super_test.dart b/tests/language_2/const/constructor_super_test.dart
deleted file mode 100644
index 447e91815fd..00000000000
--- a/tests/language_2/const/constructor_super_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  final a;
-  A(this.a); // Not const.
-  const A.five() : a = 5;
-}
-
-class B extends A {
-  final b;
-  B(x)
-      : b = x + 1,
-        super(x);
-
-  // Const constructor cannot call non-const super constructor.
-  const B.zerofive() : b = 0, super(5);
-  //                          ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_CONSTRUCTOR_WITH_NON_CONST_SUPER
-  // [cfe] A constant constructor can't call a non-constant super constructor.
-}
-
-class C extends A {
-  C() : super(0);
-  // Implicit call to non-const constructor A(x).
-  const C.named(x);
-  //    ^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_CONSTRUCTOR_WITH_NON_CONST_SUPER
-  // [cfe] The superclass, 'A', has no unnamed constructor that takes no arguments.
-  //    ^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.NO_DEFAULT_SUPER_CONSTRUCTOR
-}
-
-main() {
-  var b = new B.zerofive();
-  var b1 = new B(0);
-  var c = new C.named("");
-}
diff --git a/tests/language_2/const/constructor_syntax_runtime_test.dart b/tests/language_2/const/constructor_syntax_runtime_test.dart
deleted file mode 100644
index ad36a5159d4..00000000000
--- a/tests/language_2/const/constructor_syntax_runtime_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-main() {
-
-
-  var c1 = const C1();
-
-  var c3 = const C3();
-}
-
-abstract class I0 {
-  factory I0() = C0;
-}
-
-class C0 implements I0 {
-  C0();
-}
-
-class C1 {
-  const C1();
-
-}
-
-class C2 {
-  C2();
-}
-
-class C3 {
-  const C3()
-
-  ;
-  final field = null;
-}
diff --git a/tests/language_2/const/constructor_syntax_test.dart b/tests/language_2/const/constructor_syntax_test.dart
deleted file mode 100644
index 61227c0026b..00000000000
--- a/tests/language_2/const/constructor_syntax_test.dart
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  var c0 = const C0();
-  //       ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_WITH_NON_CONST
-  //             ^
-  // [cfe] Cannot invoke a non-'const' constructor where a const expression is expected.
-  var i0 = const I0();
-  //       ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_WITH_NON_CONST
-  //             ^
-  // [cfe] Cannot invoke a non-'const' factory where a const expression is expected.
-  var c1 = const C1();
-  var c2 = const C2();
-  //       ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_WITH_NON_CONST
-  //             ^
-  // [cfe] Cannot invoke a non-'const' constructor where a const expression is expected.
-  var c3 = const C3();
-  //       ^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_CONSTANT
-}
-
-abstract class I0 {
-  factory I0() = C0;
-}
-
-class C0 implements I0 {
-  C0();
-}
-
-class C1 {
-  const C1();
-//      ^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_CONSTRUCTOR_WITH_NON_FINAL_FIELD
-// [cfe] Constructor is marked 'const' so all fields must be final.
-  var modifiable;
-}
-
-class C2 {
-  C2();
-}
-
-class C3 {
-  const C3()
-      : field = new C0()
-      //^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.FIELD_INITIALIZED_IN_INITIALIZER_AND_DECLARATION
-      //      ^
-      // [cfe] 'field' is a final instance variable that was initialized at the declaration.
-      // [cfe] Cannot invoke a non-'const' constructor where a const expression is expected.
-      // [cfe] Not a constant expression.
-      //        ^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.INVALID_CONSTANT
-      // [cfe] New expression is not a constant expression.
-  ;
-  final field = null;
-}
diff --git a/tests/language_2/const/constructor_test.dart b/tests/language_2/const/constructor_test.dart
deleted file mode 100644
index 079b0eb187b..00000000000
--- a/tests/language_2/const/constructor_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  final int x;
-  const A.named() : x = 42;
-  A() : x = null;
-}
-
-main() {
-  Expect.equals(42, (const A<int>.named()).x);
-  Expect.equals(42, (new A<int>.named()).x);
-  const A<int>();
-//^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_WITH_NON_CONST
-//      ^
-// [cfe] Cannot invoke a non-'const' constructor where a const expression is expected.
-}
diff --git a/tests/language_2/const/counter_runtime_test.dart b/tests/language_2/const/counter_runtime_test.dart
deleted file mode 100644
index e70c3ad0378..00000000000
--- a/tests/language_2/const/counter_runtime_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Bug: 4254106 Constant constructors must have (implicit) const parameters.
-
-class ConstCounter {
-  const ConstCounter(int i)
-      : nextValue_ = (
-            // Incorrect assignment of a non-const function to a final field.
-
-                i + 1);
-
-  final nextValue_;
-}
-
-main() {
-  const ConstCounter(3);
-}
diff --git a/tests/language_2/const/counter_test.dart b/tests/language_2/const/counter_test.dart
deleted file mode 100644
index 968e4520149..00000000000
--- a/tests/language_2/const/counter_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Bug: 4254106 Constant constructors must have (implicit) const parameters.
-
-class ConstCounter {
-  const ConstCounter(int i)
-      : nextValue_ = (
-      //             ^
-      // [cfe] Can't find ')' to match '('.
-
-            // Incorrect assignment of a non-const function to a final field.
-            () => i + 1;
-//          ^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_CONSTANT
-// [cfe] Not a constant expression.
-//                     ^
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-  final nextValue_;
-}
-
-main() {
-  const ConstCounter(3);
-//^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_CONSTANT
-}
diff --git a/tests/language_2/const/ct_const_test.dart b/tests/language_2/const/ct_const_test.dart
deleted file mode 100644
index 49ac1ad6806..00000000000
--- a/tests/language_2/const/ct_const_test.dart
+++ /dev/null
@@ -1,136 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test of apparent compile-time nature of constant evaluation. Constant Lists,
-// Maps and other objects should be identical independent of formation.
-
-import "package:expect/expect.dart";
-
-abstract class Roman {
-  static const I = 1;
-  static const II = 2;
-  static const III = 3;
-  static const IV = 4;
-  static const V = 5;
-
-  static const VivaItalia = const {"green": 1, "red": 3, "white": 2};
-}
-
-class Point {
-  static const int zero = 0;
-
-  static const origin = const Point(0, 0);
-  static const origin2 = const Point(zero, Roman.IV - 4);
-
-  const Point(x, y)
-      : x_ = x,
-        y_ = y;
-  const Point.X(x)
-      : x_ = x,
-        y_ = Roman.V - Roman.II - 3;
-
-  bool operator ==(final dynamic other) {
-    return (this.x_ == other.x_) && (this.y_ == other.y_);
-  }
-
-  final int x_, y_;
-}
-
-class Line {
-  const Line(Point begin, Point end)
-      : beg_ = begin,
-        end_ = end;
-  final Point beg_;
-  final Point end_;
-}
-
-class CTConstTest {
-  static int getZero() {
-    return 0;
-  }
-
-  static const naught = null;
-
-  static testMain() {
-    Expect.equals(0, Point.zero);
-    Expect.equals(0, Point.origin.x_);
-    Expect.equals(true, identical(Point.origin, Point.origin2));
-    var p1 = const Point(0, 0);
-    Expect.equals(true, identical(Point.origin, p1));
-
-    Expect.equals(false, Point.origin == const Point(1, 1));
-    Expect.equals(false, identical(Point.origin, const Point(1, 1)));
-
-    var p2 = new Point(0, getZero());
-    Expect.equals(true, Point.origin == p2); // Point.operator==
-
-    Expect.equals(true, identical(const Point.X(5), const Point(5, 0)));
-    Line l1 = const Line(Point.origin, const Point(1, 1));
-    Line l2 = const Line(const Point(0, 0), const Point(1, 1));
-    Line l3 = new Line(const Point(0, 0), const Point(1, 1));
-    Expect.equals(true, identical(l1, l2));
-
-    final evenNumbers = const <int>[2, 2 * 2, 2 * 3, 2 * 4, 2 * 5];
-    Expect.equals(true, identical(evenNumbers, const <int>[2, 4, 6, 8, 10]));
-    Expect.equals(
-        true, !identical(evenNumbers, const <dynamic>[2, 4, 6, 8, 10]));
-
-    final c11dGermany1 = const {"black": 1, "red": 2, "yellow": 3};
-    Expect.equals(true,
-        identical(c11dGermany1, const {"black": 1, "red": 2, "yellow": 3}));
-
-    final c11dGermany2 = const {"black": 1, "red": 2, "yellow": 3};
-    Expect.equals(true, identical(c11dGermany1, c11dGermany2));
-
-    final c11dBelgium = const {"black": 1, "yellow": 2, "red": 3};
-    Expect.equals(false, c11dGermany1 == c11dBelgium);
-    Expect.equals(false, identical(c11dGermany1, c11dBelgium));
-
-    final c11dItaly = const {"green": 1, "red": 3, "white": 2};
-    Expect.equals(
-        true, identical(c11dItaly, const {"green": 1, "red": 3, "white": 2}));
-    Expect.equals(true, identical(c11dItaly, Roman.VivaItalia));
-
-    Expect.equals(3, c11dItaly.length);
-    Expect.equals(3, c11dItaly.keys.length);
-    Expect.equals(true, c11dItaly.containsKey("white"));
-    Expect.equals(false, c11dItaly.containsKey("black"));
-
-    // Make sure the map object is immutable.
-    bool caughtException = false;
-    try {
-      c11dItaly["green"] = 0;
-    } on UnsupportedError catch (e) {
-      caughtException = true;
-    }
-    Expect.equals(true, caughtException);
-    Expect.equals(1, c11dItaly["green"]);
-
-    caughtException = false;
-    try {
-      c11dItaly.clear();
-    } on UnsupportedError catch (e) {
-      caughtException = true;
-    }
-    Expect.equals(true, caughtException);
-    Expect.equals(1, c11dItaly["green"]);
-
-    caughtException = false;
-    try {
-      c11dItaly.remove("orange");
-    } on UnsupportedError catch (e) {
-      caughtException = true;
-    }
-    Expect.equals(true, caughtException);
-    Expect.equals(1, c11dItaly["green"]);
-
-    Expect.equals(true, null == naught);
-  }
-}
-
-main() {
-  CTConstTest.testMain();
-}
diff --git a/tests/language_2/const/double_in_int_op_test.dart b/tests/language_2/const/double_in_int_op_test.dart
deleted file mode 100644
index 48568633076..00000000000
--- a/tests/language_2/const/double_in_int_op_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  const dynamic i1 = 3;
-  const dynamic i2 = 2;
-  const dynamic d1 = 3.3;
-  const dynamic d2 = 2.2;
-
-  const sum = 0 + //
-      (i1 | i2) + //# ii1: ok
-      (i1 & i2) + //# ii2: ok
-      (i1 ^ i2) + //# ii3: ok
-      (i1 << i2) + //# ii4: ok
-      (i1 >> i2) + //# ii5: ok
-      (i1 | d2) + //# id1: compile-time error
-      (i1 & d2) + //# id2: compile-time error
-      (i1 ^ d2) + //# id3: compile-time error
-      (i1 << d2) + //# id4: compile-time error
-      (i1 >> d2) + //# id5: compile-time error
-      (d1 | i2) + //# di1: compile-time error
-      (d1 & i2) + //# di2: compile-time error
-      (d1 ^ i2) + //# di3: compile-time error
-      (d1 << i2) + //# di4: compile-time error
-      (d1 >> i2) + //# di5: compile-time error
-      (d1 | d2) + //# dd1: compile-time error
-      (d1 & d2) + //# dd2: compile-time error
-      (d1 ^ d2) + //# dd3: compile-time error
-      (d1 << d2) + //# dd4: compile-time error
-      (d1 >> d2) + //# dd5: compile-time error
-      0;
-  print(sum);
-}
diff --git a/tests/language_2/const/dynamic_type_literal_runtime_1_test.dart b/tests/language_2/const/dynamic_type_literal_runtime_1_test.dart
deleted file mode 100644
index 466e4f91112..00000000000
--- a/tests/language_2/const/dynamic_type_literal_runtime_1_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that 'dynamic' can be used in const expressions and has the expected
-// behavior.
-
-import "package:expect/expect.dart";
-
-const d = dynamic;
-const i = int;
-
-void main() {
-  Expect.isTrue(identical(d, dynamic));
-  // Duplicate key error.
-
-
-}
diff --git a/tests/language_2/const/dynamic_type_literal_runtime_2_test.dart b/tests/language_2/const/dynamic_type_literal_runtime_2_test.dart
deleted file mode 100644
index 125a59ea566..00000000000
--- a/tests/language_2/const/dynamic_type_literal_runtime_2_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that 'dynamic' can be used in const expressions and has the expected
-// behavior.
-
-import "package:expect/expect.dart";
-
-const d = dynamic;
-const i = int;
-
-void main() {
-
-  // Duplicate key error.
-
-  Expect.equals(2, const { d: 1, i: 2 }.length);
-}
diff --git a/tests/language_2/const/dynamic_type_literal_runtime_test.dart b/tests/language_2/const/dynamic_type_literal_runtime_test.dart
deleted file mode 100644
index 2337462d454..00000000000
--- a/tests/language_2/const/dynamic_type_literal_runtime_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that 'dynamic' can be used in const expressions and has the expected
-// behavior.
-
-import "package:expect/expect.dart";
-
-const d = dynamic;
-const i = int;
-
-void main() {
-
-  // Duplicate key error.
-
-
-}
diff --git a/tests/language_2/const/dynamic_type_literal_test.dart b/tests/language_2/const/dynamic_type_literal_test.dart
deleted file mode 100644
index 8f159cbcc7a..00000000000
--- a/tests/language_2/const/dynamic_type_literal_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that 'dynamic' can be used in const expressions and has the expected
-// behavior.
-
-import "package:expect/expect.dart";
-
-const d = dynamic;
-const i = int;
-
-void main() {
-  Expect.isTrue(identical(d, dynamic));
-  // Duplicate key error.
-  Expect.equals(1, const { d: 1, d: 2 }.length);
-  //               ^
-  // [cfe] Constant evaluation error:
-  //                             ^
-  // [analyzer] COMPILE_TIME_ERROR.EQUAL_KEYS_IN_CONST_MAP
-  Expect.equals(2, const { d: 1, i: 2 }.length);
-}
diff --git a/tests/language_2/const/error_multiply_initialized_test.dart b/tests/language_2/const/error_multiply_initialized_test.dart
deleted file mode 100644
index 8b6643c5da6..00000000000
--- a/tests/language_2/const/error_multiply_initialized_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// If a constant constructor contains an initializer, or an initializing
-// formal, for a final field which itself has an initializer at its
-// declaration, then a compile-time error should be reported regardless of
-// whether the constructor is called with "const" or "new".
-
-import "package:expect/expect.dart";
-
-class C {
-  final x = 1;
-  const C() : x = 2; //# 01: compile-time error
-  const C() : x = 2; //# 02: compile-time error
-  const C(this.x); //# 03: compile-time error
-  const C(this.x); //# 04: compile-time error
-}
-
-main() {
-  const C(); //# 01: continued
-  new C(); //# 02: continued
-  const C(2); //# 03: continued
-  new C(2); //# 04: continued
-}
diff --git a/tests/language_2/const/escape_frog_test.dart b/tests/language_2/const/escape_frog_test.dart
deleted file mode 100644
index 0ae7e561896..00000000000
--- a/tests/language_2/const/escape_frog_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test division by power of two.
-// Test that results before and after optimization are the same.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Foo {
-  final Bar<Foo> bar = const Bar /* comment here use to trigger bug 323 */ ();
-}
-
-class Bar<T extends Foo> {
-  const Bar();
-}
-
-main() {
-  Expect.equals(new Foo().bar, const Bar());
-}
diff --git a/tests/language_2/const/evaluation_test.dart b/tests/language_2/const/evaluation_test.dart
deleted file mode 100644
index e9fe9072dd6..00000000000
--- a/tests/language_2/const/evaluation_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that compile-time evaluation of constants is consistent with runtime
-// evaluation.
-
-import 'package:expect/expect.dart';
-
-const top_const = identical(-0.0, 0);
-final top_final = identical(-0.0, 0);
-var top_var = identical(-0.0, 0);
-
-@top_const
-class C {
-  static const static_const = identical(-0.0, 0);
-  static final static_final = identical(-0.0, 0);
-  static var static_var = identical(-0.0, 0);
-
-  final instance_final = identical(-0.0, 0);
-  var instance_var = identical(-0.0, 0);
-
-  void test() {
-    const local_const = identical(-0.0, 0);
-    final local_final = identical(-0.0, 0);
-    var local_var = identical(-0.0, 0);
-
-    Expect.equals(identical(-0.0, 0), top_const);
-    Expect.equals(top_const, top_final);
-    Expect.equals(top_final, top_var);
-    Expect.equals(top_var, static_const);
-    Expect.equals(static_const, static_final);
-    Expect.equals(static_final, static_var);
-    Expect.equals(static_var, instance_final);
-    Expect.equals(instance_final, instance_var);
-    Expect.equals(instance_var, local_const);
-    Expect.equals(local_const, local_final);
-    Expect.equals(local_final, local_var);
-  }
-}
-
-void main() {
-  new C().test();
-}
diff --git a/tests/language_2/const/factory_redirection_test.dart b/tests/language_2/const/factory_redirection_test.dart
deleted file mode 100644
index 72651489afa..00000000000
--- a/tests/language_2/const/factory_redirection_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that factory redirections work for compile-time constants, and
-// that abstract classes can redirect.
-
-abstract class C {
-  const factory C(int x) = D;
-}
-
-class D implements C {
-  final int i;
-  const D(this.i);
-  m() => 'called m';
-}
-
-main() {
-  const C c = const C(42);
-  D d = c;
-  Expect.equals(42, d.i);
-  Expect.equals('called m', d.m());
-  d = new C(42);
-  Expect.equals(42, d.i);
-  Expect.equals('called m', d.m());
-}
diff --git a/tests/language_2/const/factory_with_body_runtime_test.dart b/tests/language_2/const/factory_with_body_runtime_test.dart
deleted file mode 100644
index 9ad1e97e82a..00000000000
--- a/tests/language_2/const/factory_with_body_runtime_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Tests that a "const factory" with body produces a compile-time error.
-
-class ConstFactoryWithBody {
-
-}
-
-main() {
-
-}
diff --git a/tests/language_2/const/factory_with_body_test.dart b/tests/language_2/const/factory_with_body_test.dart
deleted file mode 100644
index 7dd5a120465..00000000000
--- a/tests/language_2/const/factory_with_body_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Tests that a "const factory" with body produces a compile-time error.
-
-// @dart = 2.9
-
-class ConstFactoryWithBody {
-  const factory ConstFactoryWithBody.one() { }
-//^^^^^
-// [analyzer] SYNTACTIC_ERROR.CONST_FACTORY
-// [cfe] Only redirecting factory constructors can be declared to be 'const'.
-}
-
-main() {
-  const ConstFactoryWithBody.one();
-  //    ^
-  // [cfe] Non-redirecting const factory invocation is not a constant expression.
-}
diff --git a/tests/language_2/const/for_in_variable_test.dart b/tests/language_2/const/for_in_variable_test.dart
deleted file mode 100644
index ebcf66e69ce..00000000000
--- a/tests/language_2/const/for_in_variable_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  for (
-      const //# 01: compile-time error
-      final //# 02: ok
-      int x in const [1, 2, 3]) {
-    break;
-  }
-}
diff --git a/tests/language_2/const/getter_runtime_test.dart b/tests/language_2/const/getter_runtime_test.dart
deleted file mode 100644
index b03ed55842c..00000000000
--- a/tests/language_2/const/getter_runtime_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Check that const getters are not allowed.
-
-import 'package:expect/expect.dart';
-
-class C {
-  const C();
-
-
-  get x => 1;
-}
-
-
-get y => 2;
-
-main() {
-  const C().x;
-  y;
-}
diff --git a/tests/language_2/const/getter_test.dart b/tests/language_2/const/getter_test.dart
deleted file mode 100644
index 9f1039905da..00000000000
--- a/tests/language_2/const/getter_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that const getters are not allowed.
-
-import 'package:expect/expect.dart';
-
-class C {
-  const C();
-
-  const
-//^^^^^
-// [analyzer] SYNTACTIC_ERROR.EXTRANEOUS_MODIFIER
-// [cfe] Can't have modifier 'const' here.
-  get x => 1;
-}
-
-const
-// [error line 21, column 1, length 5]
-// [analyzer] SYNTACTIC_ERROR.EXTRANEOUS_MODIFIER
-// [cfe] Can't have modifier 'const' here.
-get y => 2;
-
-main() {
-  const C().x;
-  y;
-}
diff --git a/tests/language_2/const/global_test.dart b/tests/language_2/const/global_test.dart
deleted file mode 100644
index d22fc00b6e8..00000000000
--- a/tests/language_2/const/global_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-const a = 1;
-
-main() {
-  Expect.equals(1, a);
-  Expect.equals(1, const A(a).a);
-  Expect.equals(1, const [const A(a)][0].a);
-}
-
-class A {
-  final a;
-  const A(this.a);
-}
diff --git a/tests/language_2/const/inference_test.dart b/tests/language_2/const/inference_test.dart
deleted file mode 100644
index 89b612c5c22..00000000000
--- a/tests/language_2/const/inference_test.dart
+++ /dev/null
@@ -1,142 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-R constFunction<T, R>(T _) => null;
-
-C<T> getC<T>() => const C(constFunction);
-
-List<T> getList<T>() => const [];
-
-Set<T> getSet<T>() => const {};
-
-Map<K, V> getMap<K, V>() => const {};
-
-R Function(T) getFunction<T, R>() {
-  List<R Function(T)> list = const [constFunction];
-  return list[0];
-}
-
-C<T> getImplicitConstC<T>() {
-  List<C<T>> list = const [C(constFunction)];
-  return list[0];
-}
-
-List<T> getImplicitConstList<T>() {
-  List<List<T>> list = const [[]];
-  return list[0];
-}
-
-Set<T> getImplicitConstSet<T>() {
-  List<Set<T>> list = const [{}];
-  return list[0];
-}
-
-Map<K, V> getImplicitConstMap<K, V>() {
-  List<Map<K, V>> list = const [{}];
-  return list[0];
-}
-
-class C<T> {
-  final Object fn;
-  const C(T Function(T) this.fn);
-}
-
-void expectOfType<T>(Object obj) {
-  // An exact type test would be better, but since `Null` is a subtype of all
-  // types that can be written in Dart 2.0, it should not matter in practice.
-  //
-  // (`obj.runtimeType == T` does not work for List/Map/Sets because the runtime
-  // type is an implementation-specific subtype of those interfaces.)
-  Expect.isTrue(obj is T, "`$obj` should be of type `$T`");
-}
-
-testClassInstance() {
-  expectOfType<C<Null>>(getC<int>());
-  expectOfType<C<Null>>(getC<String>());
-  expectOfType<C<Null>>(getC());
-}
-
-testImplicitConstClassInstance() {
-  expectOfType<C<Null>>(getImplicitConstC<int>());
-  expectOfType<C<Null>>(getImplicitConstC<String>());
-  expectOfType<C<Null>>(getImplicitConstC());
-}
-
-testDownwardsClassInference() {
-  expectOfType<Null Function(Null)>(getC<int>().fn);
-  expectOfType<Null Function(Null)>(getC<String>().fn);
-  expectOfType<Null Function(Null)>(getC().fn);
-}
-
-testList() {
-  expectOfType<List<Null>>(getList<int>());
-  expectOfType<List<Null>>(getList<String>());
-  expectOfType<List<Null>>(getList());
-}
-
-testImplicitConstList() {
-  expectOfType<List<Null>>(getImplicitConstList<int>());
-  expectOfType<List<Null>>(getImplicitConstList<String>());
-  expectOfType<List<Null>>(getImplicitConstList());
-}
-
-testImplicitConstSet() {
-  expectOfType<Set<Null>>(getImplicitConstSet<int>());
-  expectOfType<Set<Null>>(getImplicitConstSet<String>());
-  expectOfType<Set<Null>>(getImplicitConstSet());
-}
-
-testSet() {
-  expectOfType<Set<Null>>(getSet<int>());
-  expectOfType<Set<Null>>(getSet<String>());
-  expectOfType<Set<Null>>(getSet());
-}
-
-testMap() {
-  expectOfType<Map<Null, Null>>(getMap<int, int>());
-  expectOfType<Map<Null, Null>>(getMap<int, String>());
-  expectOfType<Map<Null, Null>>(getMap<String, int>());
-  expectOfType<Map<Null, Null>>(getMap<String, String>());
-  expectOfType<Map<Null, Null>>(getMap<Null, Null>());
-  expectOfType<Map<Null, Null>>(getMap());
-}
-
-testImplicitConstMap() {
-  expectOfType<Map<Null, Null>>(getImplicitConstMap<int, int>());
-  expectOfType<Map<Null, Null>>(getImplicitConstMap<int, String>());
-  expectOfType<Map<Null, Null>>(getImplicitConstMap<String, int>());
-  expectOfType<Map<Null, Null>>(getImplicitConstMap<String, String>());
-  expectOfType<Map<Null, Null>>(getImplicitConstMap<Null, Null>());
-  expectOfType<Map<Null, Null>>(getImplicitConstMap());
-}
-
-testFunction() {
-  expectOfType<Null Function(Object)>(getFunction<int, int>());
-  expectOfType<Null Function(Object)>(getFunction<int, String>());
-  expectOfType<Null Function(Object)>(getFunction<String, int>());
-  expectOfType<Null Function(Object)>(getFunction<String, String>());
-  expectOfType<Null Function(Object)>(getFunction<Null, Null>());
-  expectOfType<Null Function(Object)>(getFunction());
-}
-
-/// Tests that use type inference for constants do not reference the type
-/// parameter. Instead, free type parameters are substituted to obtain the
-/// least closure (e.g. `List<T>` becomes `List<Null>` and `R Function(T)`
-/// becomes `Null Function(Object?)`).
-main() {
-  testClassInstance();
-  testImplicitConstClassInstance();
-  testDownwardsClassInference();
-  testList();
-  testImplicitConstList();
-  testSet();
-  testImplicitConstSet();
-  testMap();
-  testImplicitConstMap();
-  testFunction();
-}
diff --git a/tests/language_2/const/init2_runtime_1_test.dart b/tests/language_2/const/init2_runtime_1_test.dart
deleted file mode 100644
index ae6cd4a9aa8..00000000000
--- a/tests/language_2/const/init2_runtime_1_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-const intValue = 0;
-const double c = 0.0;
-
-
-main() {
-  print(c);
-
-}
diff --git a/tests/language_2/const/init2_runtime_test.dart b/tests/language_2/const/init2_runtime_test.dart
deleted file mode 100644
index 0ec12b9076e..00000000000
--- a/tests/language_2/const/init2_runtime_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-const intValue = 0;
-
-
-
-main() {
-
-
-}
diff --git a/tests/language_2/const/init2_test.dart b/tests/language_2/const/init2_test.dart
deleted file mode 100644
index d10e38873fd..00000000000
--- a/tests/language_2/const/init2_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-const intValue = 0;
-const double c = 0.0;
-const double d = intValue;
-//               ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-// [cfe] A value of type 'int' can't be assigned to a variable of type 'double'.
-
-main() {
-  print(c);
-  print(d);
-}
diff --git a/tests/language_2/const/init_test.dart b/tests/language_2/const/init_test.dart
deleted file mode 100644
index 211eb632960..00000000000
--- a/tests/language_2/const/init_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check that initializers of static const fields are compile time constants.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Point {
-  final x_;
-  final y_;
-  const Point(x, y)
-      : x_ = x,
-        y_ = y;
-}
-
-class ConstInitTest {
-  static const N = 1;
-  static const O = 1 + 3;
-  static const P = 2 * (O - N);
-  static const Q = const Point(0, 0);
-
-  static const Q2 = const Point(0, 0);
-  static const P2 = 2 * (O - N);
-  static const O2 = 1 + 3;
-  static const N2 = 1;
-
-  static testMain() {
-    Expect.equals(1, N);
-    Expect.equals(4, O);
-    Expect.equals(6, P);
-    Expect.equals(0, Q.x_);
-    Expect.equals(0, Q.y_);
-  }
-}
-
-main() {
-  ConstInitTest.testMain();
-}
diff --git a/tests/language_2/const/instance_field_runtime_test.dart b/tests/language_2/const/instance_field_runtime_test.dart
deleted file mode 100644
index 7aeb4928242..00000000000
--- a/tests/language_2/const/instance_field_runtime_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that const instance fields are compile-time errors.
-
-class C {
-
-}
-
-void main() {
-  new C();
-}
diff --git a/tests/language_2/const/instance_field_test.dart b/tests/language_2/const/instance_field_test.dart
deleted file mode 100644
index 50fe87ab130..00000000000
--- a/tests/language_2/const/instance_field_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that const instance fields are compile-time errors.
-
-class C {
-  const field = 0;
-//^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_INSTANCE_FIELD
-// [cfe] Only static fields can be declared as const.
-}
-
-void main() {
-  new C();
-}
diff --git a/tests/language_2/const/list_test.dart b/tests/language_2/const/list_test.dart
deleted file mode 100644
index fc1a120e8f5..00000000000
--- a/tests/language_2/const/list_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class ConstListTest {
-  static testConstructors() {
-    List fixedList = new List.filled(4, null);
-    List fixedList2 = new List.filled(4, null);
-    List growableList = [];
-    List growableList2 = [];
-    for (int i = 0; i < 4; i++) {
-      fixedList[i] = i;
-      fixedList2[i] = i;
-      growableList.add(i);
-      growableList2.add(i);
-    }
-    Expect.equals(growableList, growableList);
-    Expect.notEquals(growableList, growableList2);
-    Expect.equals(fixedList, fixedList);
-    Expect.notEquals(fixedList, fixedList2);
-    Expect.notEquals(fixedList, growableList);
-    growableList.add(4);
-    Expect.notEquals(fixedList, growableList);
-    Expect.equals(4, growableList.removeLast());
-    Expect.notEquals(fixedList, growableList);
-    fixedList[3] = 0;
-    Expect.notEquals(fixedList, growableList);
-  }
-
-  static testLiterals() {
-    dynamic a = [1, 2, 3.1];
-    dynamic b = [1, 2, 3.1];
-    Expect.notEquals(a, b);
-    a = const [1, 2, 3.1];
-    b = const [1, 2, 3.1];
-    Expect.identical(a, b);
-    a = const <num>[1, 2, 3.1];
-    b = const [1, 2, 3.1];
-    Expect.identical(a, b);
-    a = const <dynamic>[1, 2, 3.1];
-    b = const [1, 2, 3.1];
-    Expect.notEquals(a, b);
-  }
-}
-
-main() {
-  ConstListTest.testConstructors();
-  ConstListTest.testLiterals();
-}
diff --git a/tests/language_2/const/local_test.dart b/tests/language_2/const/local_test.dart
deleted file mode 100644
index 51d9744a316..00000000000
--- a/tests/language_2/const/local_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  const a = 1;
-  Expect.equals(1, a);
-  Expect.equals(1, const A(a).a);
-  Expect.equals(1, const [const A(a)][0].a);
-}
-
-class A {
-  final a;
-  const A(this.a);
-}
diff --git a/tests/language_2/const/locals_test.dart b/tests/language_2/const/locals_test.dart
deleted file mode 100644
index bd931379e25..00000000000
--- a/tests/language_2/const/locals_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test of compile time constant local variables.
-
-const N = 8;
-
-class ConstFoo {
-  final x;
-  const ConstFoo(this.x);
-}
-
-main() {
-  const MIN = 2 - 1;
-  const MAX = N * 2;
-  const MASK = (1 << (MAX - MIN + 1)) - 1; // 65535.
-  Expect.equals(1, MIN);
-  Expect.equals(16, MAX);
-  Expect.equals(65535, MASK);
-  const s = 'MIN = $MIN  MAX = $MAX  MASK = $MASK';
-  Expect.identical(s, 'MIN = $MIN  MAX = $MAX  MASK = $MASK');
-  Expect.equals("MIN = 1  MAX = 16  MASK = 65535", s);
-  var cf1 = const ConstFoo(MASK);
-  var cf2 = const ConstFoo(s);
-  var cf3 = const ConstFoo('MIN = $MIN  MAX = $MAX  MASK = $MASK');
-  Expect.identical(cf2, cf3);
-  Expect.isFalse(identical(cf2, cf1));
-}
diff --git a/tests/language_2/const/map2_runtime_test.dart b/tests/language_2/const/map2_runtime_test.dart
deleted file mode 100644
index d9a2e80657a..00000000000
--- a/tests/language_2/const/map2_runtime_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class A {
-  const factory A() = B;
-}
-
-class B implements A {
-  const B();
-}
-
-confuse(x) {
-  if (DateTime.now().millisecondsSinceEpoch == 42) return confuse(2);
-  return x;
-}
-
-main() {
-  // It is a compile-time error if the key type overrides operator ==.
-  dynamic m = const {const A(): 42};
-  Expect.equals(42, m[confuse(const B())]);
-
-  m = const {"foo": 99, const A(): 499};
-  Expect.equals(499, m[confuse(const B())]);
-}
diff --git a/tests/language_2/const/map2_test.dart b/tests/language_2/const/map2_test.dart
deleted file mode 100644
index 399f792eb87..00000000000
--- a/tests/language_2/const/map2_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  const factory A() = B;
-}
-
-class B implements A {
-  const B();
-
-  operator ==(o) => true;
-}
-
-confuse(x) {
-  if (DateTime.now().millisecondsSinceEpoch == 42) return confuse(2);
-  return x;
-}
-
-main() {
-  // It is a compile-time error if the key type overrides operator ==.
-  dynamic m = const {const A(): 42};
-  //          ^
-  // [cfe] Constant evaluation error:
-  //                 ^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_MAP_KEY_NOT_PRIMITIVE_EQUALITY
-  Expect.equals(42, m[confuse(const B())]);
-
-  m = const {"foo": 99, const A(): 499};
-  //  ^
-  // [cfe] Constant evaluation error:
-  //                    ^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_MAP_KEY_NOT_PRIMITIVE_EQUALITY
-  Expect.equals(499, m[confuse(const B())]);
-}
diff --git a/tests/language_2/const/map3_runtime_test.dart b/tests/language_2/const/map3_runtime_test.dart
deleted file mode 100644
index 7511732463d..00000000000
--- a/tests/language_2/const/map3_runtime_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class A {
-  static const b = const B();
-}
-
-class B implements A {
-  const B();
-
-
-}
-
-main() {
-  // It is a compile-time error if the key type overrides operator ==.
-  dynamic m = const {A.b: 42};
-  Expect.equals(42, m[const B()]);
-
-  m = const {"foo": 99, A.b: 499};
-  Expect.equals(499, m[const B()]);
-}
diff --git a/tests/language_2/const/map3_test.dart b/tests/language_2/const/map3_test.dart
deleted file mode 100644
index 1fdb0cb914b..00000000000
--- a/tests/language_2/const/map3_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  static const b = const B();
-}
-
-class B implements A {
-  const B();
-
-  operator ==(o) => true;
-}
-
-main() {
-  // It is a compile-time error if the key type overrides operator ==.
-  dynamic m = const {A.b: 42};
-  //          ^
-  // [cfe] Constant evaluation error:
-  //                 ^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_MAP_KEY_NOT_PRIMITIVE_EQUALITY
-  Expect.equals(42, m[const B()]);
-
-  m = const {"foo": 99, A.b: 499};
-  //  ^
-  // [cfe] Constant evaluation error:
-  //                    ^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_MAP_KEY_NOT_PRIMITIVE_EQUALITY
-  Expect.equals(499, m[const B()]);
-}
diff --git a/tests/language_2/const/map4_test.dart b/tests/language_2/const/map4_test.dart
deleted file mode 100644
index 88e13989101..00000000000
--- a/tests/language_2/const/map4_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  dynamic a = {1: 'a', 2: 'b', 3: 'c'};
-  dynamic b = {1: 'a', 2: 'b', 3: 'c'};
-  Expect.equals(false, a == b);
-
-  a = const {1: 'a', 2: 'b', 3: 'c'};
-  b = const {1: 'a', 2: 'b', 3: 'c'};
-  Expect.equals(true, a == b);
-
-  a = const <int, String>{1: 'a', 2: 'b', 3: 'c'};
-  b = const {1: 'a', 2: 'b', 3: 'c'};
-  Expect.equals(true, a == b);
-
-  a = const <num, String>{1: 'a', 2: 'b', 3: 'c'};
-  b = const {1: 'a', 2: 'b', 3: 'c'};
-  Expect.equals(false, a == b);
-
-  a = const <dynamic, dynamic>{1: 'a', 2: 'b', 3: 'c'};
-  b = const {1: 'a', 2: 'b', 3: 'c'};
-  Expect.equals(false, a == b);
-}
diff --git a/tests/language_2/const/map5_test.dart b/tests/language_2/const/map5_test.dart
deleted file mode 100644
index 4827e54b719..00000000000
--- a/tests/language_2/const/map5_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Tests lookup of type literals of user-defined classes in const maps.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class A {}
-
-class C<T> {}
-
-typedef F = T Function<T>();
-
-const aType = A;
-const fType = F;
-
-main() {
-  final map = const {A: 42, F: 2, 'asdf': 'fdsa'};
-  Expect.equals(42, map[getValueNonOptimized(A)]);
-  Expect.equals(42, map[getValueNonOptimized(aType)]);
-  Expect.equals(2, map[getValueNonOptimized(F)]);
-  Expect.equals(2, map[getValueNonOptimized(fType)]);
-  Expect.isTrue(map.containsKey(getValueNonOptimized(A)));
-  Expect.isTrue(map.containsKey(getValueNonOptimized(aType)));
-  Expect.isTrue(map.containsKey(getValueNonOptimized(F)));
-  Expect.isTrue(map.containsKey(getValueNonOptimized(fType)));
-}
-
-/// Returns its argument.
-///
-/// Prevents static optimizations and inlining.
-@pragma('vm:never-inline')
-@pragma('dart2js:noInline')
-dynamic getValueNonOptimized(dynamic x) {
-  // DateTime.now() cannot be predicted statically, never equal to 42.
-  if (DateTime.now().millisecondsSinceEpoch == 42) {
-    return getValueNonOptimized(2);
-  }
-  return x;
-}
diff --git a/tests/language_2/const/map_hashcode_override2_test.dart b/tests/language_2/const/map_hashcode_override2_test.dart
deleted file mode 100644
index a5add26fbed..00000000000
--- a/tests/language_2/const/map_hashcode_override2_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-/// Returns its argument.
-///
-/// Prevents static optimizations and inlining.
-@pragma('vm:never-inline')
-@pragma('dart2js:noInline')
-dynamic getValueNonOptimized(dynamic x) {
-  // DateTime.now() cannot be predicted statically, never equal to 42.
-  if (DateTime.now().millisecondsSinceEpoch == 42) {
-    return getValueNonOptimized(2);
-  }
-  return x;
-}
-
-class MyClass {
-  final int n;
-
-  const MyClass(this.n);
-
-  int get hashCode => super.hashCode + 1;
-}
-
-main() {
-  const constInstance = MyClass(1);
-  final nonConstInstance = MyClass(1);
-
-  const constMap = {MyClass(1): 11};
-  final nonConstMap = {constInstance: 11};
-  final nonConstMap2 = {nonConstInstance: 11};
-
-  // operator== is _not_ overridden, so instances are not equal.
-  Expect.notEquals(constInstance, nonConstInstance);
-
-  Expect.isTrue(constMap.containsKey(getValueNonOptimized(constInstance)));
-  Expect.isFalse(constMap.containsKey(getValueNonOptimized(nonConstInstance)));
-  Expect.isTrue(nonConstMap.containsKey(getValueNonOptimized(constInstance)));
-  Expect.isFalse(
-      nonConstMap.containsKey(getValueNonOptimized(nonConstInstance)));
-  Expect.isFalse(nonConstMap2.containsKey(getValueNonOptimized(constInstance)));
-  Expect.isTrue(
-      nonConstMap2.containsKey(getValueNonOptimized(nonConstInstance)));
-
-  Expect.equals(11, constMap[getValueNonOptimized(constInstance)]);
-  Expect.isNull(constMap[getValueNonOptimized(nonConstInstance)]);
-  Expect.equals(11, nonConstMap[getValueNonOptimized(constInstance)]);
-  Expect.isNull(nonConstMap[getValueNonOptimized(nonConstInstance)]);
-  Expect.isNull(nonConstMap2[getValueNonOptimized(constInstance)]);
-  Expect.equals(11, nonConstMap2[getValueNonOptimized(nonConstInstance)]);
-}
diff --git a/tests/language_2/const/map_hashcode_override_test.dart b/tests/language_2/const/map_hashcode_override_test.dart
deleted file mode 100644
index 6558b751230..00000000000
--- a/tests/language_2/const/map_hashcode_override_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-/// Returns its argument.
-///
-/// Prevents static optimizations and inlining.
-@pragma('vm:never-inline')
-@pragma('dart2js:noInline')
-dynamic getValueNonOptimized(dynamic x) {
-  // DateTime.now() cannot be predicted statically, never equal to 42.
-  if (DateTime.now().millisecondsSinceEpoch == 42) {
-    return getValueNonOptimized(2);
-  }
-  return x;
-}
-
-class Nasty {
-  final int n;
-
-  const Nasty(this.n);
-
-  int get hashCode {
-    throw "Evil hashCode";
-  }
-}
-
-main() {
-  // Test that when using an instance of a custom class as a key in a const Map,
-  // its hash code is computed as its identity hash, and even if the class
-  // overrides `hashCode`, that `hashCode` implementation is not called.
-  final map = const {1: 42, 'foo': 499, 2: 'bar', Nasty(1): 'baz'};
-  Expect.equals(42, map[getValueNonOptimized(1.0)]);
-  Expect.equals(
-      499, map[getValueNonOptimized(new String.fromCharCodes('foo'.runes))]);
-  Expect.equals('bar', map[getValueNonOptimized(2)]);
-  Expect.isNull(map[getValueNonOptimized(Nasty(1))]);
-  Expect.equals('baz', map[getValueNonOptimized(const Nasty(1))]);
-}
diff --git a/tests/language_2/const/map_null_lookup_test.dart b/tests/language_2/const/map_null_lookup_test.dart
deleted file mode 100644
index 612f3ca3bd2..00000000000
--- a/tests/language_2/const/map_null_lookup_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Tests lookup of null in const maps.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  final map1 = const {1: 42, null: 2, 'asdf': 'fdsa'};
-  Expect.equals(2, map1[getValueNonOptimized(null)]);
-  Expect.isTrue(map1.containsKey(null));
-  final map2 = const {1: 42, 2: 2, 'asdf': 'fdsa'};
-  Expect.equals(null, map2[getValueNonOptimized(null)]);
-  Expect.isFalse(map2.containsKey(null));
-}
-
-/// Returns its argument.
-///
-/// Prevents static optimizations and inlining.
-@pragma('vm:never-inline')
-@pragma('dart2js:noInline')
-dynamic getValueNonOptimized(dynamic x) {
-  // DateTime.now() cannot be predicted statically, never equal to 42.
-  if (DateTime.now().millisecondsSinceEpoch == 42) {
-    return getValueNonOptimized(2);
-  }
-  return x;
-}
diff --git a/tests/language_2/const/map_test.dart b/tests/language_2/const/map_test.dart
deleted file mode 100644
index 3ffcf7a8c26..00000000000
--- a/tests/language_2/const/map_test.dart
+++ /dev/null
@@ -1,99 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-/// Returns its argument.
-///
-/// Prevents static optimizations and inlining.
-@pragma('vm:never-inline')
-@pragma('dart2js:noInline')
-dynamic getValueNonOptimized(dynamic x) {
-  // DateTime.now() cannot be predicted statically, never equal to 42.
-  if (DateTime.now().millisecondsSinceEpoch == 42) {
-    return getValueNonOptimized(2);
-  }
-  return x;
-}
-
-main() {
-  // TODO(terry): Should check:
-  //   - simple expressions are const e.g., 2 + 3, true && !false, etc.
-  //   - const with final and/or static with same const attributes
-  //     Additionally new class instances with a static const same identity
-  //   - const for all types (int, num, double, String, boolean, and objects)
-  //   - canonicalization - const created only once same identity e.g.,
-  //
-  //     getConstMap() => const [1, 2];
-  //     var a = getConstMap();
-  //     var b = getConstMap();
-  //     Expect.equals(a.hashCode, b.hashCode);
-
-  // Make sure that const maps use the == operator and not object identity. The
-  // specification does not explicitly require it, otherwise ints and Strings
-  // wouldn't make much sense as keys.
-  final map = const {1: 42, 'foo': 499, 2: 'bar'};
-  Expect.equals(42, map[getValueNonOptimized(1.0)]);
-  Expect.equals(
-      499, map[getValueNonOptimized(new String.fromCharCodes('foo'.runes))]);
-  Expect.equals('bar', map[getValueNonOptimized(2)]);
-
-  void testThrowsNoModification(void Function() f) {
-    Expect.throws(f, (e) {
-      return e is UnsupportedError;
-    });
-
-    Expect.equals(42, map[getValueNonOptimized(1.0)]);
-    Expect.equals(
-        499, map[getValueNonOptimized(new String.fromCharCodes('foo'.runes))]);
-    Expect.equals('bar', map[getValueNonOptimized(2)]);
-    Expect.isNull(map[1024]);
-  }
-
-  testThrowsNoModification(() {
-    map[1024] = 'something';
-  });
-
-  testThrowsNoModification(() {
-    map.addAll({1024: 'something'});
-  });
-
-  testThrowsNoModification(() {
-    map.putIfAbsent(1024, () => 'something');
-  });
-
-  testThrowsNoModification(() {
-    map.putIfAbsent(1, () => 1024);
-  });
-
-  testThrowsNoModification(() {
-    map.clear();
-  });
-
-  testThrowsNoModification(() {
-    map.remove(1024);
-  });
-
-  testThrowsNoModification(() {
-    map.remove(1);
-  });
-
-  testThrowsNoModification(() {
-    map.addEntries([MapEntry(1024, 'something')]);
-  });
-
-  testThrowsNoModification(() {
-    map.update(2, (Object value) => 42);
-  });
-
-  testThrowsNoModification(() {
-    map.updateAll((Object key, Object value) => '123');
-  });
-
-  testThrowsNoModification(() {
-    map.removeWhere((Object key, Object value) => true);
-  });
-}
diff --git a/tests/language_2/const/named_test.dart b/tests/language_2/const/named_test.dart
deleted file mode 100644
index 8b2f278accf..00000000000
--- a/tests/language_2/const/named_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check that const constructors work with named arguments.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  var d = const Duration(milliseconds: 499);
-  Expect.equals(499, d.inMilliseconds);
-}
diff --git a/tests/language_2/const/native_factory_test.dart b/tests/language_2/const/native_factory_test.dart
deleted file mode 100644
index 8b0b180ef3a..00000000000
--- a/tests/language_2/const/native_factory_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Cake {
-  final name;
-  const Cake(this.name);
-
-  @pragma("vm:external-name", "Cake_BakeMeACake")
-  @JSName("Cake_BakeMeACake")
-//^^^^^^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_ANNOTATION
-// ^
-// [cfe] Couldn't find constructor 'JSName'.
-  external const factory Cake.BakeMeACake();
-}
-
-main() {
-  var c = const Cake("Sacher");
-}
diff --git a/tests/language_2/const/nested_test.dart b/tests/language_2/const/nested_test.dart
deleted file mode 100644
index a290f3d361e..00000000000
--- a/tests/language_2/const/nested_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test of compile time constant local variables in outer function levels.
-
-const N = 8;
-
-class ConstFoo {
-  final x;
-  const ConstFoo(this.x);
-}
-
-getClosure() {
-  const MIN = 2 - 1;
-  const MAX = N * 2;
-  const MASK = (1 << (MAX - MIN + 1)) - 1; // 65535.
-
-  void foo() {
-    Expect.equals(1, MIN);
-    Expect.equals(16, MAX);
-    Expect.equals(65535, MASK);
-    // Refer to compile time constant local variables in outer scope.
-    const s = 'MIN = $MIN  MAX = $MAX  MASK = $MASK';
-    Expect.isTrue(identical(s, 'MIN = $MIN  MAX = $MAX  MASK = $MASK'));
-    Expect.equals("MIN = 1  MAX = 16  MASK = 65535", s);
-    var cf1 = const ConstFoo(MASK);
-    var cf2 = const ConstFoo(s);
-    var cf3 = const ConstFoo('MIN = $MIN  MAX = $MAX  MASK = $MASK');
-    Expect.isTrue(identical(cf2, cf3));
-    Expect.isFalse(identical(cf2, cf1));
-  }
-
-  return foo;
-}
-
-main() {
-  var f = getClosure();
-  f();
-}
diff --git a/tests/language_2/const/objects_are_immutable_test.dart b/tests/language_2/const/objects_are_immutable_test.dart
deleted file mode 100644
index a5e9addeaf6..00000000000
--- a/tests/language_2/const/objects_are_immutable_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check that const objects (including literals) are immutable.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  const A(this.x, this.y);
-  final num x, y;
-}
-
-main() {
-  dynamic list = const [1, 2];
-  Expect.throws(() => list[0] = 3);
-  Expect.equals(1, list[0]);
-
-  dynamic m = const {'foo': 499};
-  Expect.throws(() => m['foo'] = 42);
-  Expect.equals(499, m['foo']);
-
-  dynamic a1 = const A(1, 2);
-  Expect.throws(() => a1.x = 499);
-  Expect.equals(1, a1.x);
-
-  dynamic a2 = const A(1, 2);
-  Expect.throws(() => a2.x = 499);
-  Expect.equals(1, a2.x);
-}
diff --git a/tests/language_2/const/optional_args_runtime_test.dart b/tests/language_2/const/optional_args_runtime_test.dart
deleted file mode 100644
index 5dbe4bd3fd7..00000000000
--- a/tests/language_2/const/optional_args_runtime_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Check that const objects (including literals) are immutable.
-
-// Must be 'const {}' to be valid.
-invalid(
-    [var p =
-
-    const
-
-    {}]) {}
-
-main() {
-  invalid();
-}
diff --git a/tests/language_2/const/optional_args_test.dart b/tests/language_2/const/optional_args_test.dart
deleted file mode 100644
index b16ce2f7569..00000000000
--- a/tests/language_2/const/optional_args_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that const objects (including literals) are immutable.
-
-// Must be 'const {}' to be valid.
-invalid(
-    [var p =
-    /*
-    const
-    */
-    {}]) {}
-//  ^^
-// [analyzer] COMPILE_TIME_ERROR.NON_CONSTANT_DEFAULT_VALUE
-// [cfe] Constant expression expected.
-// [cfe] Non-constant map literal is not a constant expression.
-
-main() {
-  invalid();
-}
diff --git a/tests/language_2/const/qq_test.dart b/tests/language_2/const/qq_test.dart
deleted file mode 100644
index cdaefe7a4f3..00000000000
--- a/tests/language_2/const/qq_test.dart
+++ /dev/null
@@ -1,140 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that ?? is compile-time constant.
-
-import "package:expect/expect.dart";
-
-const theNull = null;
-const notNull = const Object();
-
-// Top-level const field initializer.
-const test1 = theNull ?? notNull;
-const test2 = notNull ?? theNull;
-const test3 = theNull ?? theNull ?? notNull;
-const test4 = theNull ?? theNull ?? theNull;
-
-class P {
-  final v;
-  const P(this.v);
-}
-
-// Annotation parameter (not checked by test!)
-@P(theNull ?? notNull)
-@P(notNull ?? theNull)
-@P(theNull ?? theNull ?? notNull)
-@P(theNull ?? theNull ?? theNull)
-class C {
-  // Static const field initializer.
-  static const test5 = theNull ?? notNull;
-  static const test6 = notNull ?? theNull;
-  static const test7 = theNull ?? theNull ?? notNull;
-  static const test8 = theNull ?? theNull ?? theNull;
-
-  // (Constructor) parameter defaults.
-  final test9;
-  final test10;
-  final test11;
-  final test12;
-
-  // Const constructor initializer list.
-  final test13;
-  final test14;
-  final test15;
-  final test16;
-  final test17;
-
-  const C(x,
-      [this.test9 = theNull ?? notNull,
-      this.test10 = notNull ?? theNull,
-      this.test11 = theNull ?? theNull ?? notNull,
-      this.test12 = theNull ?? theNull ?? theNull])
-      : test13 = theNull ?? x,
-        test14 = notNull ?? x,
-        test15 = x ?? notNull,
-        test16 = theNull ?? theNull ?? x,
-        test17 = theNull ?? x ?? notNull;
-
-  List methodLocal() {
-    // Method local const variable initializer.
-    const test18 = theNull ?? notNull;
-    const test19 = notNull ?? theNull;
-    const test20 = theNull ?? theNull ?? notNull;
-    const test21 = theNull ?? theNull ?? theNull;
-
-    return const [test18, test19, test20, test21];
-  }
-
-  List expressionLocal() {
-    // Constant expression sub-expression.
-    return const [
-      theNull ?? notNull,
-      notNull ?? theNull,
-      theNull ?? theNull ?? notNull,
-      theNull ?? theNull ?? theNull
-    ];
-  }
-}
-
-main() {
-  Expect.identical(notNull, test1, "test1");
-  Expect.identical(notNull, test2, "test2");
-  Expect.identical(notNull, test3, "test3");
-  Expect.identical(theNull, test4, "test4");
-
-  Expect.identical(notNull, C.test5, "test5");
-  Expect.identical(notNull, C.test6, "test6");
-  Expect.identical(notNull, C.test7, "test7");
-  Expect.identical(theNull, C.test8, "test8");
-
-  const c1 = const C(null);
-  Expect.identical(notNull, c1.test9, "test9");
-  Expect.identical(notNull, c1.test10, "test10");
-  Expect.identical(notNull, c1.test11, "test11");
-  Expect.identical(theNull, c1.test12, "test12");
-
-  Expect.identical(theNull, c1.test13, "test13");
-  Expect.identical(notNull, c1.test14, "test14");
-  Expect.identical(notNull, c1.test15, "test15");
-  Expect.identical(theNull, c1.test16, "test16");
-  Expect.identical(notNull, c1.test17, "test17");
-
-  var list = c1.methodLocal();
-  Expect.identical(notNull, list[0], "test18");
-  Expect.identical(notNull, list[1], "test19");
-  Expect.identical(notNull, list[2], "test20");
-  Expect.identical(theNull, list[3], "test21");
-
-  list = c1.expressionLocal();
-  Expect.identical(notNull, list[0], "test22");
-  Expect.identical(notNull, list[1], "test23");
-  Expect.identical(notNull, list[2], "test24");
-  Expect.identical(theNull, list[3], "test25");
-
-  const c2 = const C(42);
-  Expect.identical(notNull, c2.test9, "test26");
-  Expect.identical(notNull, c2.test10, "test27");
-  Expect.identical(notNull, c2.test11, "test28");
-  Expect.identical(theNull, c2.test12, "test29");
-
-  Expect.identical(42, c2.test13, "test30");
-  Expect.identical(notNull, c2.test14, "test31");
-  Expect.identical(42, c2.test15, "test32");
-  Expect.identical(42, c2.test16, "test33");
-  Expect.identical(42, c2.test17, "test34");
-
-  list = c2.methodLocal();
-  Expect.identical(notNull, list[0], "test35");
-  Expect.identical(notNull, list[1], "test36");
-  Expect.identical(notNull, list[2], "test37");
-  Expect.identical(theNull, list[3], "test38");
-
-  list = c2.expressionLocal();
-  Expect.identical(notNull, list[0], "test39");
-  Expect.identical(notNull, list[1], "test40");
-  Expect.identical(notNull, list[2], "test41");
-  Expect.identical(theNull, list[3], "test42");
-}
diff --git a/tests/language_2/const/redirect_skips_supertype_test.dart b/tests/language_2/const/redirect_skips_supertype_test.dart
deleted file mode 100644
index b1157962e54..00000000000
--- a/tests/language_2/const/redirect_skips_supertype_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Since C redirects to C.named, it doesn't implicitly refer to B's
-// unnamed constructor.  Therefore there is no cycle.
-
-class B {
-  final x;
-  const B() : x = y;
-  const B.named() : x = null;
-}
-
-class C extends B {
-  const C() : this.named();
-  const C.named() : super.named();
-}
-
-const y = const C();
-
-main() {
-  print(y);
-}
diff --git a/tests/language_2/const/redirecting_factory_test.dart b/tests/language_2/const/redirecting_factory_test.dart
deleted file mode 100644
index 33a1420f571..00000000000
--- a/tests/language_2/const/redirecting_factory_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class K implements L {
-  final field1;
-  final field2;
-  const K({this.field1: 42, this.field2: true});
-}
-
-class L {
-  const factory L() = K;
-  const factory L.named1({field1, field2}) = K;
-  const factory L.named2({field2, field1}) = K;
-}
-
-const K l1 = const L();
-
-const K l2a = const L.named1();
-const K l2b = const L.named1(field1: 87);
-const K l2c = const L.named1(field2: false);
-const K l2d = const L.named1(field1: 87, field2: false);
-const K l2e = const L.named1(field2: false, field1: 87);
-
-const K l3a = const L.named2();
-const K l3b = const L.named2(field1: 87);
-const K l3c = const L.named2(field2: false);
-const K l3d = const L.named2(field1: 87, field2: false);
-const K l3e = const L.named2(field2: false, field1: 87);
-
-main() {
-  Expect.equals(42, l1.field1);
-  Expect.equals(true, l1.field2);
-
-  Expect.equals(42, l2a.field1);
-  Expect.equals(true, l2a.field2);
-  Expect.equals(87, l2b.field1);
-  Expect.equals(true, l2b.field2);
-  Expect.equals(42, l2c.field1);
-  Expect.equals(false, l2c.field2);
-  Expect.equals(87, l2d.field1);
-  Expect.equals(false, l2d.field2);
-  Expect.equals(87, l2e.field1);
-  Expect.equals(false, l2e.field2);
-
-  Expect.equals(42, l3a.field1);
-  Expect.equals(true, l3a.field2);
-  Expect.equals(87, l3b.field1);
-  Expect.equals(true, l3b.field2);
-  Expect.equals(42, l3c.field1);
-  Expect.equals(false, l3c.field2);
-  Expect.equals(87, l3d.field1);
-  Expect.equals(false, l3d.field2);
-  Expect.equals(87, l3e.field1);
-  Expect.equals(false, l3e.field2);
-}
diff --git a/tests/language_2/const/set5_test.dart b/tests/language_2/const/set5_test.dart
deleted file mode 100644
index dc0088d05b3..00000000000
--- a/tests/language_2/const/set5_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Tests lookup of type literals of user-defined classes in const sets.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class A {}
-
-class C<T> {}
-
-typedef F = T Function<T>();
-
-const aType = A;
-const fType = F;
-
-main() {
-  final set1 = const {A, 1, 'asdf', F};
-  Expect.isTrue(set1.contains(getValueNonOptimized(A)));
-  Expect.isTrue(set1.contains(getValueNonOptimized(aType)));
-  Expect.isTrue(set1.contains(getValueNonOptimized(F)));
-  Expect.isTrue(set1.contains(getValueNonOptimized(fType)));
-  Expect.equals(A, set1.lookup(getValueNonOptimized(A)));
-  Expect.equals(A, set1.lookup(getValueNonOptimized(aType)));
-  Expect.equals(F, set1.lookup(getValueNonOptimized(F)));
-  Expect.equals(F, set1.lookup(getValueNonOptimized(fType)));
-}
-
-/// Returns its argument.
-///
-/// Prevents static optimizations and inlining.
-@pragma('vm:never-inline')
-@pragma('dart2js:noInline')
-dynamic getValueNonOptimized(dynamic x) {
-  // DateTime.now() cannot be predicted statically, never equal to 42.
-  if (DateTime.now().millisecondsSinceEpoch == 42) {
-    return getValueNonOptimized(2);
-  }
-  return x;
-}
diff --git a/tests/language_2/const/set_hashcode_override2_test.dart b/tests/language_2/const/set_hashcode_override2_test.dart
deleted file mode 100644
index 0be21364651..00000000000
--- a/tests/language_2/const/set_hashcode_override2_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-/// Returns its argument.
-///
-/// Prevents static optimizations and inlining.
-@pragma('vm:never-inline')
-@pragma('dart2js:noInline')
-dynamic getValueNonOptimized(dynamic x) {
-  // DateTime.now() cannot be predicted statically, never equal to 42.
-  if (DateTime.now().millisecondsSinceEpoch == 42) {
-    return getValueNonOptimized(2);
-  }
-  return x;
-}
-
-class MyClass {
-  final int n;
-
-  const MyClass(this.n);
-
-  int get hashCode => super.hashCode + 1;
-}
-
-main() {
-  const constInstance = MyClass(1);
-  final nonConstInstance = MyClass(1);
-
-  const constSet = {MyClass(1)};
-  final nonConstSet = {constInstance};
-  final nonConstSet2 = {nonConstInstance};
-
-  // operator== is _not_ overridden, so instances are not equal.
-  Expect.notEquals(constInstance, nonConstInstance);
-
-  Expect.isTrue(constSet.contains(getValueNonOptimized(constInstance)));
-  Expect.isFalse(constSet.contains(getValueNonOptimized(nonConstInstance)));
-  Expect.isTrue(nonConstSet.contains(getValueNonOptimized(constInstance)));
-  Expect.isFalse(nonConstSet.contains(getValueNonOptimized(nonConstInstance)));
-  Expect.isFalse(nonConstSet2.contains(getValueNonOptimized(constInstance)));
-  Expect.isTrue(nonConstSet2.contains(getValueNonOptimized(nonConstInstance)));
-}
diff --git a/tests/language_2/const/set_null_lookup_test.dart b/tests/language_2/const/set_null_lookup_test.dart
deleted file mode 100644
index 1e7a09ab7d6..00000000000
--- a/tests/language_2/const/set_null_lookup_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Tests lookup of null in const sets.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  final set1 = const {null, 1, 'asdf'};
-  Expect.isTrue(set1.contains(getValueNonOptimized(null)));
-  Expect.equals(null, set1.lookup(null));
-  final set2 = const {42, 1, 'asdf'};
-  Expect.isFalse(set2.contains(getValueNonOptimized(null)));
-  Expect.equals(null, set2.lookup(null));
-}
-
-/// Returns its argument.
-///
-/// Prevents static optimizations and inlining.
-@pragma('vm:never-inline')
-@pragma('dart2js:noInline')
-dynamic getValueNonOptimized(dynamic x) {
-  // DateTime.now() cannot be predicted statically, never equal to 42.
-  if (DateTime.now().millisecondsSinceEpoch == 42) {
-    return getValueNonOptimized(2);
-  }
-  return x;
-}
diff --git a/tests/language_2/const/string_test.dart b/tests/language_2/const/string_test.dart
deleted file mode 100644
index 5895d76d8cc..00000000000
--- a/tests/language_2/const/string_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Exercises compile-time string constants
-
-const yz = "y" + "z";
-
-main() {
-  // Constant comparisons are independent of the quotes used.
-  Expect.isTrue(identical("abcd", 'abcd'));
-  Expect.isTrue(identical('abcd', "abcd"));
-  Expect.isTrue(identical("ab\"cd", 'ab"cd'));
-  Expect.isTrue(identical('ab\'cd', "ab'cd"));
-
-  // String concatenation works even when quotes are different.
-  Expect.isTrue(identical("abcd", "ab" "cd"));
-  Expect.isTrue(identical("abcd", "ab" 'cd'));
-  Expect.isTrue(identical("abcd", 'ab' 'cd'));
-  Expect.isTrue(identical("abcd", 'ab' "cd"));
-
-  // Or when there are more than 2 concatenations.
-  Expect.isTrue(identical("abcd", "a" "b" "cd"));
-  Expect.isTrue(identical("abcd", "a" "b" "c" "d"));
-  Expect.isTrue(identical('abcd', 'a' 'b' 'c' 'd'));
-  Expect.isTrue(identical("abcd", "a" "b" 'c' "d"));
-  Expect.isTrue(identical("abcd", 'a' 'b' 'c' 'd'));
-  Expect.isTrue(identical("abcd", 'a' "b" 'c' "d"));
-
-  Expect.isTrue(identical("a'b'cd", "a" "'b'" 'c' "d"));
-  Expect.isTrue(identical("a\"b\"cd", "a" '"b"' 'c' "d"));
-  Expect.isTrue(identical("a\"b\"cd", "a" '"b"' 'c' "d"));
-  Expect.isTrue(identical("a'b'cd", 'a' "'b'" 'c' "d"));
-  Expect.isTrue(identical('a\'b\'cd', "a" "'b'" 'c' "d"));
-  Expect.isTrue(identical('a"b"cd', 'a' '"b"' 'c' "d"));
-  Expect.isTrue(identical("a\"b\"cd", 'a' '"b"' 'c' "d"));
-
-  const a = identical("ab", "a" + "b");
-  Expect.isTrue(a);
-
-  const b = identical("xyz", "x" + yz);
-  Expect.isTrue(b);
-
-  const c = identical("12", "1" "2");
-  Expect.isTrue(c);
-
-  const d = identical("zyz", "z$yz");
-  Expect.isTrue(d);
-}
diff --git a/tests/language_2/const/switch2_runtime_test.dart b/tests/language_2/const/switch2_runtime_test.dart
deleted file mode 100644
index f8a2d964414..00000000000
--- a/tests/language_2/const/switch2_runtime_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-int main() {
-  var a = [1, 2, 3][2];
-  switch (a) {
-
-
-
-    case 1:
-      print("OK");
-  }
-}
diff --git a/tests/language_2/const/switch2_test.dart b/tests/language_2/const/switch2_test.dart
deleted file mode 100644
index ce881a40080..00000000000
--- a/tests/language_2/const/switch2_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-int main() {
-  var a = [1, 2, 3][2];
-  switch (a) {
-  //      ^
-  // [analyzer] COMPILE_TIME_ERROR.SWITCH_EXPRESSION_NOT_ASSIGNABLE
-    case 0.0:
-    //   ^
-    // [cfe] Case expression '0.0' does not have a primitive operator '=='.
-    // [cfe] Type 'int' of the switch expression isn't assignable to the type 'double' of this case expression.
-      print("illegal");
-      break;
-    case 1:
-    //   ^
-    // [analyzer] COMPILE_TIME_ERROR.INCONSISTENT_CASE_EXPRESSION_TYPES
-      print("OK");
-  }
-}
diff --git a/tests/language_2/const/switch_test.dart b/tests/language_2/const/switch_test.dart
deleted file mode 100644
index 48b7d3d617c..00000000000
--- a/tests/language_2/const/switch_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class C {
-  final field;
-  const C(this.field);
-}
-
-const c1 = const C(0.0);
-const c2 = const C(0);
-const c3 = const C(0.5 + 0.5);
-const c4 = const C(1);
-
-main() {
-  Expect.equals('0.0', test(c1)); //# 01: ok
-  Expect.equals('0', test(c2)); //# 02: ok
-  Expect.equals('1.0', test(c3)); //# 03: ok
-  Expect.equals('1', test(c4)); //# 04: ok
-}
-
-String test(C c) {
-  switch (c) {
-    case const C(0.0):
-      return '0.0';
-    case const C(0):
-      return '0';
-    case const C(1.0):
-      return '1.0';
-    case const C(1):
-      return '1';
-  }
-  return null;
-}
diff --git a/tests/language_2/const/syntax_runtime_test.dart b/tests/language_2/const/syntax_runtime_test.dart
deleted file mode 100644
index ebb4dd71d6f..00000000000
--- a/tests/language_2/const/syntax_runtime_test.dart
+++ /dev/null
@@ -1,94 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-main() {
-  const f0 = 42;
-
-  const int f2 = 87;
-
-  Expect.equals(42, f0);
-  Expect.equals(87, f2);
-
-  Expect.equals(42, F0);
-
-  Expect.equals(87, F2);
-
-
-  Expect.isTrue(P0 is Point);
-
-
-
-
-  Expect.isTrue(A0 is int);
-  Expect.isTrue(A1 is int);
-
-
-
-  Expect.isTrue(C0.X is C1);
-
-
-  Expect.equals("Hello 42", B2);
-
-
-  const cf1 = identical(const Point(1, 2), const Point(1, 2));
-
-
-
-
-  var f5 = B5;
-}
-
-const F0 = 42;
-
-const int F2 = 87;
-
-
-class Point {
-  final x, y;
-  const Point(this.x, this.y);
-  operator +(int other) => x;
-}
-
-// Check that compile time expressions can include invocations of
-// user-defined const constructors.
-const P0 = const Point(0, 0);
-
-
-
-
-// Check that we cannot have cyclic references in compile time
-// expressions.
-const A0 = 42;
-const A1 = A0 + 1;
-
-
-
-class C0 {
-  static const X = const C1();
-}
-
-class C1 {
-  const C1()
-
-  ;
-  final x = null;
-}
-
-// Check that sub-expressions of binary + are numeric.
-const B0 = 42;
-const B1 = "Hello";
-const B2 = "$B1 $B0";
-
-
-// Check identical.
-
-
-const B5 = identical(1, const Point(1, 2));
diff --git a/tests/language_2/const/syntax_test.dart b/tests/language_2/const/syntax_test.dart
deleted file mode 100644
index caa71eefa1a..00000000000
--- a/tests/language_2/const/syntax_test.dart
+++ /dev/null
@@ -1,149 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  const f0 = 42;
-  const f1;
-  //    ^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_NOT_INITIALIZED
-  // [cfe] The const variable 'f1' must be initialized.
-  const int f2 = 87;
-  const int f3;
-  //        ^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_NOT_INITIALIZED
-  // [cfe] The const variable 'f3' must be initialized.
-  Expect.equals(42, f0);
-  Expect.equals(87, f2);
-
-  Expect.equals(42, F0);
-  Expect.equals(null, F1);
-  Expect.equals(87, F2);
-  Expect.equals(null, F3);
-
-  Expect.isTrue(P0 is Point);
-  Expect.isTrue(P1 is int);
-  Expect.isTrue(P2 is Point);
-  Expect.isTrue(P3 is int);
-
-  Expect.isTrue(A0 is int);
-  Expect.isTrue(A1 is int);
-  Expect.isTrue(A2 is int);
-  Expect.isTrue(A3 is int);
-
-  Expect.isTrue(C0.X is C1);
-  Expect.isTrue(C0.X.x is C1);
-
-  Expect.equals("Hello 42", B2);
-  Expect.equals("42Hello", B3);
-
-  const cf1 = identical(const Point(1, 2), const Point(1, 2));
-
-  const cf2 = identical(const Point(1, 2), new Point(1, 2));
-  //                                       ^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
-  // [cfe] New expression is not a constant expression.
-  //                                           ^
-  // [cfe] New expression is not a constant expression.
-
-  var f4 = B4;
-  var f5 = B5;
-}
-
-const F0 = 42;
-const F1;
-//    ^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_NOT_INITIALIZED
-// [cfe] The const variable 'F1' must be initialized.
-const int F2 = 87;
-const int F3;
-//        ^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_NOT_INITIALIZED
-// [cfe] The const variable 'F3' must be initialized.
-
-class Point {
-  final x, y;
-  const Point(this.x, this.y);
-  operator +(int other) => x;
-}
-
-// Check that compile time expressions can include invocations of
-// user-defined const constructors.
-const P0 = const Point(0, 0);
-const P1 = const Point(0, 0) + 1;
-//         ^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_TYPE_NUM
-//                           ^
-// [cfe] Constant evaluation error:
-const P2 = new Point(0, 0);
-//         ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
-// [cfe] New expression is not a constant expression.
-//             ^
-// [cfe] New expression is not a constant expression.
-const P3 = new Point(0, 0) + 1;
-//         ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
-// [cfe] New expression is not a constant expression.
-//             ^
-// [cfe] New expression is not a constant expression.
-
-// Check that we cannot have cyclic references in compile time
-// expressions.
-const A0 = 42;
-const A1 = A0 + 1;
-const A2 = A3 + 1;
-//    ^^
-// [analyzer] COMPILE_TIME_ERROR.RECURSIVE_COMPILE_TIME_CONSTANT
-// [cfe] Can't infer the type of 'A2': circularity found during type inference.
-//            ^
-// [cfe] Constant evaluation error:
-const A3 = A2 + 1;
-//    ^^
-// [analyzer] COMPILE_TIME_ERROR.RECURSIVE_COMPILE_TIME_CONSTANT
-
-class C0 {
-  static const X = const C1();
-  //           ^
-  // [analyzer] COMPILE_TIME_ERROR.RECURSIVE_COMPILE_TIME_CONSTANT
-}
-
-class C1 {
-  const C1()
-  //    ^^
-  // [analyzer] COMPILE_TIME_ERROR.RECURSIVE_CONSTANT_CONSTRUCTOR
-      : x = C0.X
-      //^
-      // [analyzer] COMPILE_TIME_ERROR.FIELD_INITIALIZED_IN_INITIALIZER_AND_DECLARATION
-      //  ^
-      // [cfe] 'x' is a final instance variable that was initialized at the declaration.
-      // [cfe] Cannot invoke a non-'const' constructor where a const expression is expected.
-      // [cfe] Not a constant expression.
-  ;
-  final x = null;
-}
-
-// Check that sub-expressions of binary + are numeric.
-const B0 = 42;
-const B1 = "Hello";
-const B2 = "$B1 $B0";
-const B3 = B0 + B1;
-//         ^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_TYPE_NUM
-//              ^^
-// [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-// [cfe] A value of type 'String' can't be assigned to a variable of type 'num'.
-
-// Check identical.
-
-const B4 = identical(1, new Point(1, 2));
-//                      ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
-// [cfe] New expression is not a constant expression.
-//                          ^
-// [cfe] New expression is not a constant expression.
-const B5 = identical(1, const Point(1, 2));
diff --git a/tests/language_2/const/tree_test.dart b/tests/language_2/const/tree_test.dart
deleted file mode 100644
index 8b42e7d4587..00000000000
--- a/tests/language_2/const/tree_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  final List<A> children;
-  const A({this.children: const []});
-}
-
-const a = const A();
-const b = const A(children: const [a]);
-
-main() {
-  print(b);
-}
diff --git a/tests/language_2/const/types_test.dart b/tests/language_2/const/types_test.dart
deleted file mode 100644
index 84f07eec49f..00000000000
--- a/tests/language_2/const/types_test.dart
+++ /dev/null
@@ -1,91 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test handling of malformed types in constant expressions.
-
-use(x) {}
-
-class Class<T> implements Supertype, GenericSupertype<T> {
-  const Class();
-  const Class.named();
-
-  void test() {
-    use(const []);
-    use(const <Class>[]);
-    use(const <Class<int>>[]);
-    use(const <Class<Unresolved>>[]); //# 01: compile-time error
-    use(const <Unresolved>[]); //# 02: compile-time error
-
-    use(const {});
-    use(const <Class>{});
-    use(const <String, Class>{});
-    use(const <String, Class<int>>{});
-    use(const <String, Class<Unresolved>>{}); //# 04: compile-time error
-    use(const <String, Unresolved>{}); //# 05: compile-time error
-
-    use(const Class());
-    use(const Class<int>());
-    use(const Class<Unresolved>()); //# 06: compile-time error
-    use(const Class<T>()); //# 07: compile-time error
-    use(const Class<Class<T>>()); //# 08: compile-time error
-
-    use(const Unresolved()); //# 09: compile-time error
-    use(const Unresolved<int>()); //# 10: compile-time error
-    use(const prefix.Unresolved()); //# 11: compile-time error
-    use(const prefix.Unresolved<int>()); //# 12: compile-time error
-
-    use(const Class.named());
-    use(const Class<int>.named());
-    use(const Class<Unresolved>.named()); //# 13: compile-time error
-    use(const Class<T>.named()); //# 14: compile-time error
-    use(const Class<Class<T>>.named()); //# 15: compile-time error
-
-    use(const Class.nonamed()); //# 16: compile-time error
-    use(const Class<int>.nonamed()); //# 17: compile-time error
-    use(const Class<Unresolved>.nonamed()); //# 18: compile-time error
-    use(const Class<T>.nonamed()); //# 19: compile-time error
-    use(const Class<Class<T>>.nonamed()); //# 20: compile-time error
-
-    use(const Unresolved.named()); //# 21: compile-time error
-    use(const Unresolved<int>.named()); //# 22: compile-time error
-  }
-}
-
-class Supertype {
-  const factory Supertype() = Unresolved; //# 23: compile-time error
-  const factory Supertype() = Unresolved<int>; //# 24: compile-time error
-  const factory Supertype() = Unresolved.named; //# 25: compile-time error
-  const factory Supertype() = Unresolved<int>.named; //# 26: compile-time error
-
-  const factory Supertype() = prefix.Unresolved; //# 27: compile-time error
-  const factory Supertype() = prefix.Unresolved<int>; //# 28: compile-time error
-  const factory Supertype() = prefix.Unresolved.named; //# 29: compile-time error
-  const factory Supertype() = prefix.Unresolved<int>.named; //# 30: compile-time error
-
-  const factory Supertype() = Class; //# 31: ok
-  const factory Supertype() = Class<int>; //# 32: ok
-  const factory Supertype() = Class<Unresolved>; //# 35: compile-time error
-
-  const factory Supertype() = Class.named; //# 36: ok
-  const factory Supertype() = Class<int>.named; //# 37: ok
-  const factory Supertype() = Class<Unresolved>.named; //# 40: compile-time error
-}
-
-class GenericSupertype<T> {
-  const factory GenericSupertype() = Class<T>; //# 33: ok
-  const factory GenericSupertype() = Class<Class<T>>; //# 34: compile-time error
-
-  const factory GenericSupertype() = Class<T>.named; //# 38: ok
-  const factory GenericSupertype() = Class<Class<T>>.named; //# 39: compile-time error
-
-  const factory GenericSupertype() = T; //# 41: compile-time error
-}
-
-void main() {
-  new Class().test();
-  new Supertype();
-  new GenericSupertype();
-}
diff --git a/tests/language_2/const/var_helper.dart b/tests/language_2/const/var_helper.dart
deleted file mode 100644
index 3be3c413770..00000000000
--- a/tests/language_2/const/var_helper.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// All things regarding constant variables.
-
-// @dart = 2.9
-
-/** Helper library for 'var_test.dart' */
-library const_var_helper;
-
-class Foo<E> {
-  const Foo();
-}
diff --git a/tests/language_2/const/var_test.dart b/tests/language_2/const/var_test.dart
deleted file mode 100644
index 66c02f3d7ef..00000000000
--- a/tests/language_2/const/var_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// All things regarding constant variables.
-
-// @dart = 2.9
-
-library const_var;
-
-import 'var_helper.dart' as foo;
-
-const untypedTopLevel = 1;
-const int typedTopLevel = 2;
-const Map<String, String> genericTopLevel = const <String, String>{};
-
-main() {
-  const untypedLocal = 3;
-  const int typedLocal = 4;
-  const Map<String, String> genericLocal = const <String, String>{};
-  const [];
-  const {};
-  const <int>[];
-  const <String, int>{};
-  const Foo();
-  const Foo<int>();
-  const foo.Foo();
-  const foo.Foo<int>();
-}
-
-class Foo<E> {
-  const Foo();
-}
diff --git a/tests/language_2/constants_2018/const_type_test.dart b/tests/language_2/constants_2018/const_type_test.dart
deleted file mode 100644
index 511450995b1..00000000000
--- a/tests/language_2/constants_2018/const_type_test.dart
+++ /dev/null
@@ -1,102 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that types do matter when an expression is evaluated as constant.
-
-main() {
-  const C c = C();
-  const T.test01(c); //# 01: compile-time error
-  const T.test02(c, c); //# 02: compile-time error
-  const T.test03(c, c); //# 03: compile-time error
-  const T.test04(c, c); //# 04: compile-time error
-  const T.test05(c, c); //# 05: compile-time error
-  const T.test06(c, c); //# 06: compile-time error
-  const T.test07(c, c); //# 07: compile-time error
-  const T.test08(c, c); //# 08: compile-time error
-  const T.test09(c, c); //# 09: compile-time error
-  const T.test10(c, c); //# 10: compile-time error
-  const T.test11(c, c); //# 11: compile-time error
-  const T.test12(c, c); //# 12: compile-time error
-  const T.test13(c, c); //# 13: compile-time error
-  const T.test14(c); //# 14: compile-time error
-  const T.test15(c, c); //# 15: compile-time error
-  const T.test16(c, c); //# 16: compile-time error
-  const T.test17(c, c); //# 17: compile-time error
-  const T.test18(c, c); //# 18: compile-time error
-  const T.test19(c); //# 19: compile-time error
-
-  const v01 = false ? c : -c; //# 20: compile-time error
-  const v02 = false ? c : c + c; //# 21: compile-time error
-  const v03 = false ? c : c - c; //# 22: compile-time error
-  const v04 = false ? c : c * c; //# 23: compile-time error
-  const v05 = false ? c : c / c; //# 24: compile-time error
-  const v06 = false ? c : c ~/ c; //# 25: compile-time error
-  const v07 = false ? c : c % c; //# 26: compile-time error
-  const v08 = false ? c : c << c; //# 27: compile-time error
-  const v09 = false ? c : c >> c; //# 28: compile-time error
-  const v10 = false ? c : c >>> c; //# 29: compile-time error
-  const v11 = false ? c : c & c; //# 30: compile-time error
-  const v12 = false ? c : c | c; //# 31: compile-time error
-  const v13 = false ? c : c ^ c; //# 32: compile-time error
-  const v14 = false ? c : ~c; //# 33: compile-time error
-  const v15 = false ? c : c < c; //# 34: compile-time error
-  const v16 = false ? c : c > c; //# 35: compile-time error
-  const v17 = false ? c : c <= c; //# 36: compile-time error
-  const v18 = false ? c : c >= c; //# 37: compile-time error
-  const v19 = false ? c : c.length; //# 38: compile-time error
-}
-
-// Each expression in the forwarding generative constructors must be
-// potentially constant. They are only checked for being actually
-// constant when the constructor is invoked.
-class T {
-  const T(C o);
-  const T.test01(C x) : this(-x);
-  const T.test02(C x, C y) : this(x + y);
-  const T.test03(C x, C y) : this(x - y);
-  const T.test04(C x, C y) : this(x * y);
-  const T.test05(C x, C y) : this(x / y);
-  const T.test06(C x, C y) : this(x ~/ y);
-  const T.test07(C x, C y) : this(x % y);
-  const T.test08(C x, C y) : this(x << y);
-  const T.test09(C x, C y) : this(x >> y);
-  const T.test10(C x, C y) : this(x >>> y); //# 10: continued
-  const T.test11(C x, C y) : this(x & y);
-  const T.test12(C x, C y) : this(x | y);
-  const T.test13(C x, C y) : this(x ^ y);
-  const T.test14(C x) : this(~x);
-  const T.test15(C x, C y) : this(x < y);
-  const T.test16(C x, C y) : this(x > y);
-  const T.test17(C x, C y) : this(x <= y);
-  const T.test18(C x, C y) : this(x >= y);
-  const T.test19(C x) : this(x.length);
-}
-
-class C {
-  const C();
-  C operator -() => this;
-  C operator +(C other) => this;
-  C operator -(C other) => this;
-  C operator *(C other) => this;
-  C operator /(C other) => this;
-  C operator ~/(C other) => this;
-  C operator %(C other) => this;
-  C operator <<(C other) => this;
-  C operator >>(C other) => this;
-  // Remove the multi-test markers and one of the lines below,
-  // when `>>>` is implemented.
-  C operator >>>(C other) => this;  //# 10: continued
-  C operator >>>(C other) => this;  //# 29: continued
-  C operator &(C other) => this;
-  C operator |(C other) => this;
-  C operator ^(C other) => this;
-  C operator ~() => this;
-  C operator <(C other) => this;
-  C operator >(C other) => this;
-  C operator <=(C other) => this;
-  C operator >=(C other) => this;
-  C get length => this;
-}
diff --git a/tests/language_2/constants_2018/constant_type_literal_test.dart b/tests/language_2/constants_2018/constant_type_literal_test.dart
deleted file mode 100644
index e7086f37d06..00000000000
--- a/tests/language_2/constants_2018/constant_type_literal_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that non-deferred type literals are constant expressions.
-
-import "dart:core";
-import "dart:core" as core;
-// No reloading support for deferred loading.
-// See https://github.com/dart-lang/sdk/issues/33118.
-import "dart:core" deferred as dcore show int; //# 01: compile-time error
-
-// Declares F function type alias, M mixin and C class.
-import "constant_type_literal_types.dart";
-import "constant_type_literal_types.dart" as p;
-// No reloading support for deferred loading.
-// See https://github.com/dart-lang/sdk/issues/33118.
-import "constant_type_literal_types.dart" //# 02: compile-time error
-    deferred as d; //# 02: continued
-
-main() {
-  const Test(int, core.int);
-  const Test(C, p.C);
-  const Test(M, p.M);
-  const Test(F, p.F);
-  const c1 = //
-      dcore. //# 01: continued
-          int;
-  const Test(c1, int);
-  const c2 = //
-      d. //# 02: continued
-          C;
-  const Test(c2, C);
-}
-
-class Test {
-  const Test(Type t1, Type t2) : assert(identical(t1, t2));
-}
diff --git a/tests/language_2/constants_2018/constant_type_literal_types.dart b/tests/language_2/constants_2018/constant_type_literal_types.dart
deleted file mode 100644
index 38dff1caebc..00000000000
--- a/tests/language_2/constants_2018/constant_type_literal_types.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Helper file for constant_type_literal_test.dart.
-// Tests that non-deferred type literals are constant expressions.
-
-typedef F = void Function();
-
-class C {}
-
-mixin M {}
diff --git a/tests/language_2/constants_2018/constant_types_test.dart b/tests/language_2/constants_2018/constant_types_test.dart
deleted file mode 100644
index 333c6d4b444..00000000000
--- a/tests/language_2/constants_2018/constant_types_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that only constant types are allowed in some positions,
-// not type parameters.
-
-import "package:expect/expect.dart";
-
-class T<X> {
-  final Object value;
-  const T.test1()
-      : value = const //
-            <X> //# 01: compile-time error
-            [];
-  const T.test2(Object o)
-      : value = o //
-            as X //# 02: compile-time error
-  ;
-  const T.test3(Object o)
-      : value = o //
-            is X //# 03: compile-time error
-  ;
-  const T.test4()
-      : value = null //
-            ?? X //# 04: compile-time error
-  ;
-}
-
-class T2 {
-  final Object value;
-  const T2.test1() : value = const <int>[];
-  const T2.test2(Object o) : value = o as int;
-  const T2.test3(Object o) : value = o is int;
-  const T2.test4() : value = int;
-}
-
-main() {
-  // The errors in class T are errors independently of whether the
-  // constructor is invoked or not.
-
-  // Constant type expressions are allowed.
-  Expect.equals(const <int>[], const T2.test1().value);
-  Expect.equals(2, const T2.test2(2).value);
-  Expect.isTrue(const T2.test3(2).value);
-  Expect.equals(int, const T2.test4().value);
-}
diff --git a/tests/language_2/constants_2018/equals_test.dart b/tests/language_2/constants_2018/equals_test.dart
deleted file mode 100644
index 6ddd3e1e294..00000000000
--- a/tests/language_2/constants_2018/equals_test.dart
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that equality is allowed for receivers of specific types.
-
-import "package:expect/expect.dart";
-
-main() {
-  const c = C(); // Does not override operator==.
-  const d = D(); // Overrides operator==.
-
-  // Allowed if receiver is int, double, String, bool or Null, ...
-  Expect.isTrue(const T.eq(1, 1).value);
-  Expect.isTrue(const T.eq(1.5, 1.5).value);
-  Expect.isTrue(const T.eq("", "").value);
-  Expect.isTrue(const T.eq(true, true).value);
-  Expect.isTrue(const T.eq(null, null).value);
-
-  Expect.isFalse(const T.eq(1, c).value);
-  Expect.isFalse(const T.eq(1.5, c).value);
-  Expect.isFalse(const T.eq("", c).value);
-  Expect.isFalse(const T.eq(true, c).value);
-  Expect.isFalse(const T.eq(null, c).value);
-
-  Expect.isFalse(const T.eq(1, d).value);
-  Expect.isFalse(const T.eq(1.5, d).value);
-  Expect.isFalse(const T.eq("", d).value);
-  Expect.isFalse(const T.eq(true, d).value);
-  Expect.isFalse(const T.eq(null, d).value);
-
-  // ... or if second operand is Null.
-  Expect.isFalse(const T.eq(1, null).value);
-  Expect.isFalse(const T.eq(1.5, null).value);
-  Expect.isFalse(const T.eq("", null).value);
-  Expect.isFalse(const T.eq(false, null).value);
-  Expect.isFalse(const T.eq(c, null).value);
-  Expect.isFalse(const T.eq(d, null).value);
-
-  // Otherwise not allowed.
-  const T.eq(c, c); //# 01: compile-time error
-  const T.eq(c, 1); //# 02: compile-time error
-  const T.eq(c, ""); //# 03: compile-time error
-  const T.eq(E.value1, E.value2); //# 04: compile-time error
-}
-
-class T {
-  final Object value;
-  const T.eq(Object o1, Object o2) : value = o1 == o2;
-}
-
-/// Class that does not override operator==.
-class C {
-  const C();
-}
-
-/// Class that overrides operator==.
-class D {
-  const D();
-  bool operator ==(Object other) => identical(this, other);
-}
-
-enum E { value1, value2 }
diff --git a/tests/language_2/constants_2018/potential_const_dynamic_test.dart b/tests/language_2/constants_2018/potential_const_dynamic_test.dart
deleted file mode 100644
index e8a6158fd8f..00000000000
--- a/tests/language_2/constants_2018/potential_const_dynamic_test.dart
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that a dynamic type does not affect whether an expression is
-// potentially constant, the actual type of the value of an expression
-// only matters if the expression is evaluated as a constant.
-
-main() {
-  Object c = C();
-  T.test01(c);
-  T.test02(c, c);
-  T.test03(c, c);
-  T.test04(c, c);
-  T.test05(c, c);
-  T.test06(c, c);
-  T.test07(c, c);
-  T.test08(c, c);
-  T.test09(c, c);
-  T.test11(c, c);
-  T.test12(c, c);
-  T.test13(c, c);
-  T.test14(c);
-  T.test15(c, c);
-  T.test16(c, c);
-  T.test17(c, c);
-  T.test18(c, c);
-  T.test19(c);
-}
-
-class T {
-  const T(Object o);
-  const T.test01(dynamic x) : this(-x);
-  const T.test02(dynamic x, dynamic y) : this(x + y);
-  const T.test03(dynamic x, dynamic y) : this(x - y);
-  const T.test04(dynamic x, dynamic y) : this(x * y);
-  const T.test05(dynamic x, dynamic y) : this(x / y);
-  const T.test06(dynamic x, dynamic y) : this(x ~/ y);
-  const T.test07(dynamic x, dynamic y) : this(x % y);
-  const T.test08(dynamic x, dynamic y) : this(x << y);
-  const T.test09(dynamic x, dynamic y) : this(x >> y);
-  const T.test11(dynamic x, dynamic y) : this(x & y);
-  const T.test12(dynamic x, dynamic y) : this(x | y);
-  const T.test13(dynamic x, dynamic y) : this(x ^ y);
-  const T.test14(dynamic x) : this(~x);
-  const T.test15(dynamic x, dynamic y) : this(x < y);
-  const T.test16(dynamic x, dynamic y) : this(x > y);
-  const T.test17(dynamic x, dynamic y) : this(x <= y);
-  const T.test18(dynamic x, dynamic y) : this(x >= y);
-  const T.test19(dynamic x) : this(x.length);
-}
-
-class C {
-  const C();
-  dynamic operator -() => this;
-  dynamic operator +(dynamic other) => this;
-  dynamic operator -(dynamic other) => this;
-  dynamic operator *(dynamic other) => this;
-  dynamic operator /(dynamic other) => this;
-  dynamic operator ~/(dynamic other) => this;
-  dynamic operator %(dynamic other) => this;
-  dynamic operator <<(dynamic other) => this;
-  dynamic operator >>(dynamic other) => this;
-  dynamic operator &(dynamic other) => this;
-  dynamic operator |(dynamic other) => this;
-  dynamic operator ^(dynamic other) => this;
-  dynamic operator ~() => this;
-  dynamic operator <(dynamic other) => this;
-  dynamic operator >(dynamic other) => this;
-  dynamic operator <=(dynamic other) => this;
-  dynamic operator >=(dynamic other) => this;
-  dynamic get length => this;
-}
diff --git a/tests/language_2/constants_2018/potential_const_shortcircuit_test.dart b/tests/language_2/constants_2018/potential_const_shortcircuit_test.dart
deleted file mode 100644
index d91adce7236..00000000000
--- a/tests/language_2/constants_2018/potential_const_shortcircuit_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that short-circuit operators do not care about the unevaluated part.
-
-import "package:expect/expect.dart";
-
-main() {
-  const C c = C();
-  // Short-circuited operations.
-  // Non-taken branch of ?:.
-  const c1 = true ? c : c + c;
-  const c2 = false ? c + c : c;
-  // Non-taken part of &&, ||, ??.
-  const c3 = (c != null) || c < c;
-  const c4 = (c == null) && c < c;
-  const c5 = c ?? c + c;
-  Expect.identical(c, c1);
-  Expect.identical(c, c2);
-  Expect.isTrue(c3);
-  Expect.isFalse(c4);
-  Expect.identical(c, c5);
-  // Nested short-circuiting.
-  const c6 = true ? c == null && c + c : c < c;
-  Expect.isFalse(c6);
-
-  // Concrete use-case.
-  Expect.equals(1, const T.length("a").value);
-  Expect.equals(0, const T.length("").value);
-  Expect.equals(0, const T.length(null).value);
-  Expect.equals(1, T.length([1]).value);
-  Expect.equals(0, T.length([]).value);
-  Expect.equals(0, T.length(null).value);
-
-  Expect.equals(1, const T.asserts("a").value);
-  Expect.equals(0, const T.asserts("").value);
-  Expect.equals(0, const T.asserts(null).value);
-  Expect.equals(1, T.asserts([1]).value);
-  Expect.equals(0, T.asserts([]).value);
-  Expect.equals(0, T.asserts(null).value);
-}
-
-class T {
-  final Object value;
-  const T(this.value);
-  const T.length(dynamic l) : value = (l == null ? 0 : l.length);
-  const T.asserts(dynamic l)
-      : assert(l == null || l.length < 2),
-        value = (l ?? "").length;
-}
-
-class C {
-  const C();
-  dynamic operator +(dynamic other) => throw "Never";
-  bool operator <(dynamic other) => throw "Never";
-}
diff --git a/tests/language_2/constants_2018/potential_const_test.dart b/tests/language_2/constants_2018/potential_const_test.dart
deleted file mode 100644
index be26de8a1c5..00000000000
--- a/tests/language_2/constants_2018/potential_const_test.dart
+++ /dev/null
@@ -1,102 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that the correct places allows, and requires, potentially constant
-// expressions.
-
-bool get nonConst => true;
-
-class C {
-  final v;
-  const C(this.v);
-
-  // Redirecting generative constructor invocation parameters,
-  // must be potentially constant.
-  const C.r1() : this(const C(null));
-
-  // Only evaluates the true branch when passed `true` as argument.
-  const C.r2(bool b) : this(b ? null : 1 ~/ 0);
-
-  const C.rn1() : this(nonConst);
-  //                   ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_CONSTANT
-  // [cfe] Constant evaluation error:
-
-  const C.rn2(bool b) : this(b ? null : nonConst);
-  //                                    ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_CONSTANT
-  // [cfe] Constant evaluation error:
-
-  // Initializer list expressions must be potentially constant.
-  const C.g1() : v = const C(null);
-
-  const C.g2(bool b) : v = b ? null : 1 ~/ 0;
-
-  const C.gn3() : v = nonConst;
-  //                  ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_CONSTANT
-  // [cfe] Constant evaluation error:
-
-  const C.gn4(bool b) : v = b ? null : nonConst;
-  //                                   ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_CONSTANT
-  // [cfe] Constant evaluation error:
-
-  // Constant constructor initializer list assert expressions
-  // must be potentially constant (and boolean).
-  const C.a1()
-      : assert(const C(null) != null),
-        v = null;
-
-  const C.a2(bool b)
-      : assert(b ? const C(null) != null : ((1 ~/ 0) as bool)),
-        v = null;
-
-  const C.an1()
-      : assert(nonConst),
-        //     ^^^^^^^^
-        // [analyzer] COMPILE_TIME_ERROR.INVALID_CONSTANT
-        // [cfe] Constant evaluation error:
-        v = null;
-
-  const C.an2(bool b)
-      : assert(b ? true : nonConst),
-        //                ^^^^^^^^
-        // [analyzer] COMPILE_TIME_ERROR.INVALID_CONSTANT
-        // [cfe] Constant evaluation error:
-        v = null;
-}
-
-main() {
-  var c = const C(null);
-  var cc = const C(C(null));
-
-  var r1 = const C.r1();
-  var r2 = const C.r2(true);
-
-  /// Const constructor invocation which would throw.
-  /**/ const C.r2(false);
-  //   ^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_THROWS_EXCEPTION
-  //         ^^^^^^^^^^^
-  // [cfe] Constant evaluation error:
-
-  var g1 = const C.g1();
-  var g2 = const C.g2(true);
-  /**/ const C.g2(false);
-  //   ^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_THROWS_EXCEPTION
-  //         ^^^^^^^^^^^
-  // [cfe] Constant evaluation error:
-
-  var a1 = const C.a1();
-  var a2 = const C.a2(true);
-  /**/ const C.a2(false);
-  //   ^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_THROWS_EXCEPTION
-  //         ^^^^^^^^^^^
-  // [cfe] Constant evaluation error:
-}
diff --git a/tests/language_2/constants_2018/potential_const_type_test.dart b/tests/language_2/constants_2018/potential_const_type_test.dart
deleted file mode 100644
index fd47f3d7a39..00000000000
--- a/tests/language_2/constants_2018/potential_const_type_test.dart
+++ /dev/null
@@ -1,93 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that types do not affect whether an expression is potentially
-// constant, they only matter if the expression is evaluated as a constant.
-
-main() {
-  const C c = C();
-  T.test01(c);
-  T.test02(c, c);
-  T.test03(c, c);
-  T.test04(c, c);
-  T.test05(c, c);
-  T.test06(c, c);
-  T.test07(c, c);
-  T.test08(c, c);
-  T.test09(c, c);
-  T.test11(c, c);
-  T.test12(c, c);
-  T.test13(c, c);
-  T.test14(c);
-  T.test15(c, c);
-  T.test16(c, c);
-  T.test17(c, c);
-  T.test18(c, c);
-  T.test19(c);
-
-  const v01 = true ? c : -c;
-  const v02 = true ? c : c + c;
-  const v03 = true ? c : c - c;
-  const v04 = true ? c : c * c;
-  const v05 = true ? c : c / c;
-  const v06 = true ? c : c ~/ c;
-  const v07 = true ? c : c % c;
-  const v08 = true ? c : c << c;
-  const v09 = true ? c : c >> c;
-  const v11 = true ? c : c & c;
-  const v12 = true ? c : c | c;
-  const v13 = true ? c : c ^ c;
-  const v14 = true ? c : ~c;
-  const v15 = true ? c : c < c;
-  const v16 = true ? c : c > c;
-  const v17 = true ? c : c <= c;
-  const v18 = true ? c : c >= c;
-  const v19 = true ? c : c.length;
-}
-
-class T {
-  const T(C o);
-  const T.test01(C x) : this(-x);
-  const T.test02(C x, C y) : this(x + y);
-  const T.test03(C x, C y) : this(x - y);
-  const T.test04(C x, C y) : this(x * y);
-  const T.test05(C x, C y) : this(x / y);
-  const T.test06(C x, C y) : this(x ~/ y);
-  const T.test07(C x, C y) : this(x % y);
-  const T.test08(C x, C y) : this(x << y);
-  const T.test09(C x, C y) : this(x >> y);
-  const T.test11(C x, C y) : this(x & y);
-  const T.test12(C x, C y) : this(x | y);
-  const T.test13(C x, C y) : this(x ^ y);
-  const T.test14(C x) : this(~x);
-  const T.test15(C x, C y) : this(x < y);
-  const T.test16(C x, C y) : this(x > y);
-  const T.test17(C x, C y) : this(x <= y);
-  const T.test18(C x, C y) : this(x >= y);
-  const T.test19(C x) : this(x.length);
-}
-
-class C {
-  const C();
-  C operator -() => this;
-  C operator +(C other) => this;
-  C operator -(C other) => this;
-  C operator *(C other) => this;
-  C operator /(C other) => this;
-  C operator ~/(C other) => this;
-  C operator %(C other) => this;
-  C operator <<(C other) => this;
-  C operator >>(C other) => this;
-  C operator &(C other) => this;
-  C operator |(C other) => this;
-  C operator ^(C other) => this;
-  C operator ~() => this;
-  C operator <(C other) => this;
-  C operator >(C other) => this;
-  C operator <=(C other) => this;
-  C operator >=(C other) => this;
-  C get length => this;
-}
diff --git a/tests/language_2/constants_2018/type_cast_test.dart b/tests/language_2/constants_2018/type_cast_test.dart
deleted file mode 100644
index 001153051db..00000000000
--- a/tests/language_2/constants_2018/type_cast_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that type casts (as) are allowed.
-
-main() {
-  const t1 = T.implicit(Sub());
-  const t2 = T.explicit(Sub());
-  const t3 = T.implicit(null);
-  const t4 = T.explicit(null);
-
-  // Inline.
-  const Object o = "";
-  const len = (o as String).length;
-}
-
-class Super {
-  const Super();
-}
-
-class Sub extends Super {
-  const Sub();
-}
-
-class T {
-  final Sub value;
-  const T.implicit(Super s) : value = s;
-  const T.explicit(Super s) : value = s as Sub;
-}
diff --git a/tests/language_2/constants_2018/type_check_test.dart b/tests/language_2/constants_2018/type_check_test.dart
deleted file mode 100644
index 9ee4eb6f801..00000000000
--- a/tests/language_2/constants_2018/type_check_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that type checks (is) are allowed.
-
-import "package:expect/expect.dart";
-
-main() {
-  const c = C();
-  const l = [1];
-  const s = "a";
-
-  Expect.equals(1, const T.length(s, 42).value);
-  Expect.equals(42, const T.length(l, 42).value);
-  Expect.equals(1, const T.length2(s, 42).value);
-  Expect.equals(42, const T.length2(l, 42).value);
-
-  Expect.equals(3, const T.sum(1, 2).value);
-  Expect.equals(3.7, const T.sum(1.5, 2.2).value);
-  Expect.equals("abc", const T.sum("a", "bc").value);
-  Expect.equals("a", const T.sum("a", 2).value);
-}
-
-class T {
-  final Object value;
-  const T.length(dynamic l, int defaultValue)
-      : value = l is String ? l.length : defaultValue;
-  const T.length2(dynamic l, int defaultValue)
-      : value = l is! String ? defaultValue : l.length;
-  const T.sum(dynamic o1, dynamic o2)
-      : value = ((o1 is num) & (o2 is num)) | ((o1 is String) & (o2 is String))
-            ? o1 + o2
-            : o1;
-}
-
-class C {
-  const C();
-  dynamic operator +(dynamic other) => throw "Never";
-  bool operator <(dynamic other) => throw "Never";
-}
diff --git a/tests/language_2/constructor/bad_constructor_runtime_1_test.dart b/tests/language_2/constructor/bad_constructor_runtime_1_test.dart
deleted file mode 100644
index 61a4b65de1e..00000000000
--- a/tests/language_2/constructor/bad_constructor_runtime_1_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// A constructor can't be static.
-class A {
-
-  A();
-}
-
-// A factory constructor can't be static.
-class B {
-
-  factory B() { return null; }
-}
-
-// A named constructor can have the same name as a setter.
-class E {
-  set setter(value) {}
-  E.setter();
-}
-
-// A constructor can't be static.
-class F {
-
-  F(){}
-}
-
-main() {
-  new A();
-  new B();
-  new E.setter();
-  new F();
-}
diff --git a/tests/language_2/constructor/bad_constructor_runtime_test.dart b/tests/language_2/constructor/bad_constructor_runtime_test.dart
deleted file mode 100644
index 8ae086296f1..00000000000
--- a/tests/language_2/constructor/bad_constructor_runtime_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// A constructor can't be static.
-class A {
-
-  A();
-}
-
-// A factory constructor can't be static.
-class B {
-
-  factory B() { return null; }
-}
-
-// A named constructor can have the same name as a setter.
-class E {
-
-  E.setter();
-}
-
-// A constructor can't be static.
-class F {
-
-  F(){}
-}
-
-main() {
-  new A();
-  new B();
-  new E.setter();
-  new F();
-}
diff --git a/tests/language_2/constructor/bad_constructor_test.dart b/tests/language_2/constructor/bad_constructor_test.dart
deleted file mode 100644
index 31c1015a430..00000000000
--- a/tests/language_2/constructor/bad_constructor_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// A constructor can't be static.
-class A {
-  static
-//^^^^^^
-// [analyzer] SYNTACTIC_ERROR.STATIC_CONSTRUCTOR
-// [cfe] Constructors can't be static.
-  A();
-  // ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_FUNCTION_BODY
-  // [cfe] Expected a function body or '=>'.
-}
-
-// A factory constructor can't be static.
-class B {
-  static
-//^^^^^^
-// [analyzer] SYNTACTIC_ERROR.EXTRANEOUS_MODIFIER
-// [cfe] Can't have modifier 'static' here.
-  factory B() { return null; }
-}
-
-// A named constructor can have the same name as a setter.
-class E {
-  set setter(value) {}
-  E.setter();
-}
-
-// A constructor can't be static.
-class F {
-  static
-//^^^^^^
-// [analyzer] SYNTACTIC_ERROR.STATIC_CONSTRUCTOR
-// [cfe] Constructors can't be static.
-  F(){}
-}
-
-main() {
-  new A();
-  new B();
-  new E.setter();
-  new F();
-}
diff --git a/tests/language_2/constructor/bad_named_constructor_runtime_test.dart b/tests/language_2/constructor/bad_named_constructor_runtime_test.dart
deleted file mode 100644
index 6cf1a9859db..00000000000
--- a/tests/language_2/constructor/bad_named_constructor_runtime_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class A {
-  A() {}
-
-}
-
-main() {
-  new A();
-}
diff --git a/tests/language_2/constructor/bad_named_constructor_test.dart b/tests/language_2/constructor/bad_named_constructor_test.dart
deleted file mode 100644
index e969eb7b945..00000000000
--- a/tests/language_2/constructor/bad_named_constructor_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  A() {}
-  WrongName.foo() {}
-//^^^^^^^^^
-// [analyzer] SYNTACTIC_ERROR.INVALID_CONSTRUCTOR_NAME
-// [cfe] The name of a constructor must match the name of the enclosing class.
-}
-
-main() {
-  new A();
-}
diff --git a/tests/language_2/constructor/body_test.dart b/tests/language_2/constructor/body_test.dart
deleted file mode 100644
index 8963e164c48..00000000000
--- a/tests/language_2/constructor/body_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors without function bodies.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test a non-const constructor works without a body.
-class First {
-  First(int this.value);
-  First.named(int this.value);
-  int value;
-}
-
-// Test a const constructor works without a body.
-class Second {
-  const Second(int this.value);
-  const Second.named(int this.value);
-  final int value;
-}
-
-class ConstructorBodyTest {
-  static testMain() {
-    Expect.equals(4, new First(4).value);
-    Expect.equals(5, new First.named(5).value);
-    Expect.equals(6, new Second(6).value);
-    Expect.equals(7, new Second.named(7).value);
-  }
-}
-
-main() {
-  ConstructorBodyTest.testMain();
-}
diff --git a/tests/language_2/constructor/bodyless_wrong_arg_runtime_test.dart b/tests/language_2/constructor/bodyless_wrong_arg_runtime_test.dart
deleted file mode 100644
index e0611cf1986..00000000000
--- a/tests/language_2/constructor/bodyless_wrong_arg_runtime_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Base {
-  final String name;
-  const Base(this.name);
-}
-
-class C extends Base {
-  const C(String s)
-      : super(
-        // Call super constructor with wrong argument count.
-
-        s
-
-        );
-}
-
-main() {
-  const C("str");
-}
diff --git a/tests/language_2/constructor/bodyless_wrong_arg_test.dart b/tests/language_2/constructor/bodyless_wrong_arg_test.dart
deleted file mode 100644
index a286ddb1f32..00000000000
--- a/tests/language_2/constructor/bodyless_wrong_arg_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Base {
-  final String name;
-  const Base(this.name);
-}
-
-class C extends Base {
-  const C(String s)
-      // Call super constructor with wrong argument count.
-      : super();
-      //      ^
-      // [analyzer] COMPILE_TIME_ERROR.NOT_ENOUGH_POSITIONAL_ARGUMENTS
-      //     ^^
-      // [cfe] Too few positional arguments: 1 required, 0 given.
-}
-
-main() {
-  const C("str");
-}
diff --git a/tests/language_2/constructor/call_as_function_test.dart b/tests/language_2/constructor/call_as_function_test.dart
deleted file mode 100644
index 60fe2e1f933..00000000000
--- a/tests/language_2/constructor/call_as_function_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Point {
-  const Point(this.x, this.y);
-  final int x;
-  final int y;
-}
-
-main() {
-  Point p = Point(1, 2);
-}
diff --git a/tests/language_2/constructor/call_wrong_argument_count_runtime_test.dart b/tests/language_2/constructor/call_wrong_argument_count_runtime_test.dart
deleted file mode 100644
index 0f7894b4f3b..00000000000
--- a/tests/language_2/constructor/call_wrong_argument_count_runtime_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Stockhorn {
-  Stockhorn(int a);
-}
-
-main() {
-  new Stockhorn(1);
-
-}
diff --git a/tests/language_2/constructor/call_wrong_argument_count_test.dart b/tests/language_2/constructor/call_wrong_argument_count_test.dart
deleted file mode 100644
index 136e68cc115..00000000000
--- a/tests/language_2/constructor/call_wrong_argument_count_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Stockhorn {
-  Stockhorn(int a);
-}
-
-main() {
-  new Stockhorn(1);
-  new Stockhorn();
-  //            ^
-  // [analyzer] COMPILE_TIME_ERROR.NOT_ENOUGH_POSITIONAL_ARGUMENTS
-  //           ^^
-  // [cfe] Too few positional arguments: 1 required, 0 given.
-}
diff --git a/tests/language_2/constructor/constructor10_runtime_test.dart b/tests/language_2/constructor/constructor10_runtime_test.dart
deleted file mode 100644
index 9103d926deb..00000000000
--- a/tests/language_2/constructor/constructor10_runtime_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Check that the implicit super call for synthetic constructors are checked.
-
-class A {
-  final x;
-  A(this.x);
-}
-
-class B extends A {
-
-  B() : super(null);
-
-}
-
-// ==========
-
-class Y extends A {
-
-  Y() : super(null);
-
-}
-
-class Z extends Y {
-  Z() : super();
-}
-
-// ==============
-
-class G extends A {
-
-  G() : super(null);
-
-}
-
-class H extends G {}
-
-main() {
-  new B().x;
-  new Z().x;
-  new H().x;
-}
diff --git a/tests/language_2/constructor/constructor10_test.dart b/tests/language_2/constructor/constructor10_test.dart
deleted file mode 100644
index d7bd54e5f2a..00000000000
--- a/tests/language_2/constructor/constructor10_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that the implicit super call for synthetic constructors are checked.
-
-class A {
-  final x;
-  A(this.x);
-}
-
-class B extends A {
-//    ^
-// [analyzer] COMPILE_TIME_ERROR.NO_DEFAULT_SUPER_CONSTRUCTOR
-// [cfe] The superclass, 'A', has no unnamed constructor that takes no arguments.
-  /*
-  B() : super(null);
-  */
-}
-
-// ==========
-
-class Y extends A {
-//    ^
-// [analyzer] COMPILE_TIME_ERROR.NO_DEFAULT_SUPER_CONSTRUCTOR
-// [cfe] The superclass, 'A', has no unnamed constructor that takes no arguments.
-  /*
-  Y() : super(null);
-  */
-}
-
-class Z extends Y {
-  Z() : super();
-}
-
-// ==============
-
-class G extends A {
-//    ^
-// [analyzer] COMPILE_TIME_ERROR.NO_DEFAULT_SUPER_CONSTRUCTOR
-// [cfe] The superclass, 'A', has no unnamed constructor that takes no arguments.
-  /*
-  G() : super(null);
-  */
-}
-
-class H extends G {}
-
-main() {
-  new B().x;
-  new Z().x;
-  new H().x;
-}
diff --git a/tests/language_2/constructor/constructor11_test.dart b/tests/language_2/constructor/constructor11_test.dart
deleted file mode 100644
index 722927cdfd0..00000000000
--- a/tests/language_2/constructor/constructor11_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that the implicit super call for synthetic constructors are checked.
-
-import "package:expect/expect.dart";
-
-class A {
-  final x;
-  A([this.x = 499]);
-}
-
-class B extends A {}
-
-// ==========
-
-class X {
-  final x;
-  X([this.x = 42]);
-}
-
-class Y extends X {}
-
-class Z extends Y {
-  Z() : super();
-}
-
-// ==============
-
-class F {
-  final x;
-  F([this.x = 99]);
-}
-
-class G extends F {}
-
-class H extends G {}
-
-main() {
-  Expect.equals(499, new B().x);
-  Expect.equals(42, new Z().x);
-  Expect.equals(99, new H().x);
-}
diff --git a/tests/language_2/constructor/constructor12_test.dart b/tests/language_2/constructor/constructor12_test.dart
deleted file mode 100644
index d089038fdd9..00000000000
--- a/tests/language_2/constructor/constructor12_test.dart
+++ /dev/null
@@ -1,70 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class B {
-  final z;
-  B(this.z);
-
-  foo() => this.z;
-}
-
-class A<T> extends B {
-  var captured, captured2;
-  var typedList;
-
-  // p must be inside a box (in dart2js).
-  A(p)
-      : captured = (() => p),
-        super(p++) {
-    // Make constructor body non-inlinable.
-    try {} catch (e) {}
-
-    captured2 = () => p++;
-
-    // In the current implementation of dart2js makes the generic type an
-    // argument to the body.
-    typedList = <T>[];
-  }
-
-  foo() => captured();
-  bar() => captured2();
-}
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-main() {
-  var a = confuse(new A<int>(1));
-  var a2 = confuse(new A(2));
-  var b = confuse(new B(3));
-  Expect.equals(2, a.foo());
-  Expect.equals(3, a2.foo());
-  Expect.equals(3, b.foo());
-  Expect.equals(1, a.z);
-  Expect.equals(2, a2.z);
-  Expect.equals(3, b.z);
-  Expect.isTrue(a is A<int>);
-  Expect.isFalse(a is A<String>);
-  Expect.isFalse(a2 is A<int>);
-  Expect.isFalse(a2 is A<String>);
-  Expect.isTrue(a2 is A<Object>);
-  Expect.equals(2, a.bar());
-  Expect.equals(3, a2.bar());
-  Expect.equals(3, a.foo());
-  Expect.equals(4, a2.foo());
-  Expect.equals(0, a.typedList.length);
-  Expect.equals(0, a2.typedList.length);
-  a.typedList.add(499);
-  Expect.equals(1, a.typedList.length);
-  Expect.equals(0, a2.typedList.length);
-  Expect.isTrue(a.typedList is List<int>);
-  Expect.isFalse(a2.typedList is List<int>);
-  Expect.isFalse(a.typedList is List<String>);
-  Expect.isFalse(a2.typedList is List<String>);
-}
diff --git a/tests/language_2/constructor/constructor13_runtime_test.dart b/tests/language_2/constructor/constructor13_runtime_test.dart
deleted file mode 100644
index 2cc22707e89..00000000000
--- a/tests/language_2/constructor/constructor13_runtime_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Check that there's no crash when constructor called with wrong
-// number of args.
-
-class Klass {
-  Klass(v) {}
-}
-
-main() {
-
-  new Klass(1);
-
-}
diff --git a/tests/language_2/constructor/constructor13_test.dart b/tests/language_2/constructor/constructor13_test.dart
deleted file mode 100644
index 59d051a5b7c..00000000000
--- a/tests/language_2/constructor/constructor13_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that there's no crash when constructor called with wrong
-// number of args.
-
-class Klass {
-  Klass(v) {}
-}
-
-main() {
-  new Klass();
-  //        ^
-  // [analyzer] COMPILE_TIME_ERROR.NOT_ENOUGH_POSITIONAL_ARGUMENTS
-  //       ^^
-  // [cfe] Too few positional arguments: 1 required, 0 given.
-  new Klass(1);
-  new Klass(1, 2);
-  //           ^
-  // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS
-  //       ^^^^^^
-  // [cfe] Too many positional arguments: 1 allowed, but 2 found.
-}
diff --git a/tests/language_2/constructor/constructor2_test.dart b/tests/language_2/constructor/constructor2_test.dart
deleted file mode 100644
index 509882aee6e..00000000000
--- a/tests/language_2/constructor/constructor2_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Expect the initializer expressions E(i) to be evaluated
-// in the order 1, 2, 3, ...
-// Each expression must be evaluated exactly once.
-
-String trace = "";
-
-int E(int i) {
-  trace += "$i-";
-  return i;
-}
-
-class A {
-  var a1;
-  A(x, y) : a1 = E(4) {
-    Expect.equals(2, x);
-    Expect.equals(3, y);
-    Expect.equals(4, a1);
-    E(6);
-  }
-}
-
-class B extends A {
-  var b1, b2;
-
-  B(x)
-      : b1 = E(1),
-        b2 = E(5),
-        super(E(2), E(3)) {
-    Expect.equals(1, b1);
-    Expect.equals(5, b2);
-    E(7);
-  }
-}
-
-main() {
-  var b = new B(0);
-  Expect.equals("1-5-2-3-4-6-7-", trace);
-}
diff --git a/tests/language_2/constructor/constructor3_test.dart b/tests/language_2/constructor/constructor3_test.dart
deleted file mode 100644
index d2908fdc9dd..00000000000
--- a/tests/language_2/constructor/constructor3_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Expect the initializer expressions E(i) to be evaluated
-// in the order 1, 2, 3, ...
-// Each expression must be evaluated exactly once.
-
-String trace = "";
-
-int E(int i) {
-  trace += "$i-";
-  return i;
-}
-
-class A {
-  var a1;
-  A(x, y) : a1 = E(3) {
-    Expect.equals(1, x);
-    Expect.equals(2, y);
-    E(5);
-  }
-}
-
-class B extends A {
-  var b1;
-  B(x)
-      : b1 = E(4),
-        super(E(1), E(2)) {
-    // Implicit super call to A's body happens here.
-    Expect.equals(4, b1);
-    E(6);
-  }
-}
-
-main() {
-  var b = new B(0);
-  Expect.equals("4-1-2-3-5-6-", trace);
-}
diff --git a/tests/language_2/constructor/constructor4_test.dart b/tests/language_2/constructor/constructor4_test.dart
deleted file mode 100644
index 6d1665d5cf0..00000000000
--- a/tests/language_2/constructor/constructor4_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Expect the initializer expressions E(i) to be evaluated
-// in the order 1, 2, 3, ...
-// Each expression must be evaluated exactly once.
-
-String trace = "";
-
-int E(int i) {
-  trace += "$i-";
-  return i;
-}
-
-class A {
-  var a1;
-  A() : a1 = E(2) {
-    E(3);
-  }
-}
-
-class B extends A {
-  var b1;
-  B(x) : b1 = E(1) /* Implicit super call to A's initializers happens here. */ {
-    // Implicit super call to A's body happens here.
-    E(4);
-  }
-}
-
-main() {
-  var b = new B(0);
-  Expect.equals("1-2-3-4-", trace);
-}
diff --git a/tests/language_2/constructor/constructor5_test.dart b/tests/language_2/constructor/constructor5_test.dart
deleted file mode 100644
index 501c9eae4de..00000000000
--- a/tests/language_2/constructor/constructor5_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Super initializer and super constructor body are executed in with the same
-// bindings.
-
-String trace = "";
-
-int E(int i) {
-  trace = "$trace$i-";
-  return i;
-}
-
-class A {
-  A({arg1: 100, arg2: 200})
-      : a1 = E(arg1++),
-        a2 = E(arg2++) {
-    // b2 should be initialized between the above initializers and the following
-    // statements.
-    E(arg1); // 101
-    E(arg2); // 51
-  }
-  var a1;
-  var a2;
-}
-
-class B extends A {
-  // Initializers in order: b1, super, b2.
-  B(x, y)
-      : b1 = E(x++),
-        b2 = E(y++),
-        super(arg2: 50) {
-    // Implicit super call to A's body happens here.
-    E(x); // 11
-    E(y); // 21
-  }
-  var b1;
-  var b2;
-}
-
-class C extends B {
-  C() : super(10, 20);
-}
-
-main() {
-  var c = new C();
-  Expect.equals(100, c.a1);
-  Expect.equals(50, c.a2);
-  Expect.equals(10, c.b1);
-  Expect.equals(20, c.b2);
-
-  Expect.equals("10-20-100-50-101-51-11-21-", trace);
-}
diff --git a/tests/language_2/constructor/constructor6_test.dart b/tests/language_2/constructor/constructor6_test.dart
deleted file mode 100644
index 9db561005dd..00000000000
--- a/tests/language_2/constructor/constructor6_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Super initializer and super constructor body are executed in with the same
-// bindings.
-
-String trace = "";
-
-int E(int i) {
-  trace = "$trace$i-";
-  return i;
-}
-
-class A {
-  // f closes-over arg.  arg needs to be preserved while b2 is initialized.
-  A(arg)
-      : a = E(arg += 1),
-        f = (() => E(arg += 10)) {
-    // b2 should be initialized between the above initializers and the following
-    // statements.
-    var r1 = f();
-    E(arg += 100); // If this is the same arg as closed by f, ...
-    var r2 = f(); //  .. the effect of +=100 will be seen here.
-  }
-  final a;
-  final f;
-}
-
-class B extends A {
-  // Initializers in order: b1, super, b2.
-  B(x, y)
-      : b1 = E(x++),
-        b2 = E(y++),
-        super(1000) {
-    // Implicit super call to A's body happens here.
-    E(x);
-    E(y);
-    f();
-  }
-  var b1;
-  var b2;
-}
-
-class C extends B {
-  C() : super(10, 20);
-}
-
-main() {
-  var c = new C();
-  Expect.equals("10-20-1001-1011-1111-1121-11-21-1131-", trace);
-}
diff --git a/tests/language_2/constructor/constructor7_test.dart b/tests/language_2/constructor/constructor7_test.dart
deleted file mode 100644
index 93d84bc22f9..00000000000
--- a/tests/language_2/constructor/constructor7_test.dart
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Expect the initializer expressions E(i) to be evaluated
-// in the order 1, 2, 3, ...
-// This test has no inheritance but many fields to flush out issues with
-// ordering of fields.
-
-String trace = "";
-
-int E(int i) {
-  trace += "$i-";
-  return i;
-}
-
-class A {
-  var j; //      Names are in reverse order to detect sorting by name...
-  var i = 0; //  Initialized odd/even to detect these inits affecting order.
-  var h;
-  var g = 0;
-  var f;
-  var e = 0;
-  var d;
-  var c = 0;
-  var b;
-  var a = 0;
-
-  A()
-      : a = E(1), // Initializations in different order to decls.  Ascending...
-        b = E(2),
-        c = E(3),
-        f = E(4), // Descending to be perverse...
-        e = E(5),
-        d = E(6),
-        g = E(7), // Ascending again.
-        h = E(8),
-        i = E(9),
-        j = E(10) {
-    Expect.equals(1, a);
-    Expect.equals(2, b);
-    Expect.equals(3, c);
-
-    Expect.equals(4, f);
-    Expect.equals(5, e);
-    Expect.equals(6, d);
-
-    Expect.equals(7, g);
-    Expect.equals(8, h);
-    Expect.equals(9, i);
-    Expect.equals(10, j);
-  }
-}
-
-main() {
-  var x = new A();
-  Expect.equals('1-2-3-4-5-6-7-8-9-10-', trace);
-}
diff --git a/tests/language_2/constructor/constructor8_test.dart b/tests/language_2/constructor/constructor8_test.dart
deleted file mode 100644
index 3dc790e9ef7..00000000000
--- a/tests/language_2/constructor/constructor8_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Regression test for dart2js that used to crash on this program.
-
-class A {
-  var b;
-
-  // The closure in the constructor body used to confuse the SSA builder
-  // when it created the call to the constructor body.
-  A.withClosure(Map a) {
-    var c;
-    var f = () {
-      return c = 42;
-    };
-    b = f();
-    Expect.equals(42, b);
-    Expect.equals(42, c);
-  }
-}
-
-main() {
-  new A.withClosure(null);
-  new A.withClosure({});
-}
diff --git a/tests/language_2/constructor/constructor9_runtime_test.dart b/tests/language_2/constructor/constructor9_runtime_test.dart
deleted file mode 100644
index ce11136bb1a..00000000000
--- a/tests/language_2/constructor/constructor9_runtime_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Check that all final instance fields of a class are initialized by
-// constructors.
-
-class Klass {
-  Klass(var v) : field_ = v {}
-
-  var field_;
-}
-
-main() {
-  new Klass(5);
-}
diff --git a/tests/language_2/constructor/constructor9_test.dart b/tests/language_2/constructor/constructor9_test.dart
deleted file mode 100644
index 8f8737f1288..00000000000
--- a/tests/language_2/constructor/constructor9_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that all final instance fields of a class are initialized by
-// constructors.
-
-class Klass {
-  Klass(var v) : field_ = v {}
-//^^^^^
-// [analyzer] COMPILE_TIME_ERROR.FINAL_NOT_INITIALIZED_CONSTRUCTOR
-  final uninitializedFinalField_;
-  //    ^
-  // [cfe] Final field 'uninitializedFinalField_' is not initialized.
-  final uninitializedFinalField_;
-  //    ^^^^^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-  // [cfe] 'uninitializedFinalField_' is already declared in this scope.
-  var field_;
-}
-
-main() {
-  new Klass(5);
-}
diff --git a/tests/language_2/constructor/constructor_test.dart b/tests/language_2/constructor/constructor_test.dart
deleted file mode 100644
index 6546acec625..00000000000
--- a/tests/language_2/constructor/constructor_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A extends B {
-  A(x, y)
-      : a = x,
-        super(y) {}
-
-  var a;
-}
-
-class B {
-  var b;
-
-  B(x) : b = x {}
-
-  B.namedB(var x) : b = x {}
-}
-
-// Test the order of initialization: first the instance variable then
-// the super constructor.
-abstract class Alpha {
-  Alpha(v) {
-    this.foo(v);
-  }
-  foo(v) => throw 'Alpha.foo should never be called.';
-}
-
-class Beta extends Alpha {
-  Beta(v)
-      : b = 1,
-        super(v) {}
-
-  foo(v) {
-    // Check that 'b' was initialized.
-    Expect.equals(1, b);
-    b = v;
-  }
-
-  var b;
-}
-
-class ConstructorTest {
-  static testMain() {
-    var o = new A(10, 2);
-    Expect.equals(10, o.a);
-    Expect.equals(2, o.b);
-
-    var o1 = new B.namedB(10);
-    Expect.equals(10, o1.b);
-
-    Expect.equals(22, o.a + o.b + o1.b);
-
-    var beta = new Beta(3);
-    Expect.equals(3, beta.b);
-  }
-}
-
-main() {
-  ConstructorTest.testMain();
-}
diff --git a/tests/language_2/constructor/cyclic_constructor_test.dart b/tests/language_2/constructor/cyclic_constructor_test.dart
deleted file mode 100644
index d296ddb8a63..00000000000
--- a/tests/language_2/constructor/cyclic_constructor_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  A.a() : this.b();
-  //      ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.RECURSIVE_CONSTRUCTOR_REDIRECT
-  A.b()
-    : this.a()
-    //^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.RECURSIVE_CONSTRUCTOR_REDIRECT
-    //     ^
-    // [cfe] Redirecting constructors can't be cyclic.
-  ;
-  A.c() : this.b();
-}
-
-main() {
-  new A.a();
-  new A.b();
-  new A.c();
-}
diff --git a/tests/language_2/constructor/cyclic_runtime_test.dart b/tests/language_2/constructor/cyclic_runtime_test.dart
deleted file mode 100644
index ff243e0acff..00000000000
--- a/tests/language_2/constructor/cyclic_runtime_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class A {
-  A.a() : this.b();
-  A.b()
-
-  ;
-  A.c() : this.b();
-}
-
-main() {
-  new A.a();
-  new A.b();
-  new A.c();
-}
diff --git a/tests/language_2/constructor/default_class_implicit_constructor_test.dart b/tests/language_2/constructor/default_class_implicit_constructor_test.dart
deleted file mode 100644
index b847164f149..00000000000
--- a/tests/language_2/constructor/default_class_implicit_constructor_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// An abstract class with a redirecting factory to a class with no declared
-// constructor should use the implicit default constructor.
-
-abstract class A {
-  factory A() = B;
-}
-
-class B implements A {}
-
-main() {
-  var val = new A();
-  Expect.equals(true, val is A);
-  Expect.equals(true, val is B);
-}
diff --git a/tests/language_2/constructor/default_factory2_runtime_test.dart b/tests/language_2/constructor/default_factory2_runtime_test.dart
deleted file mode 100644
index 18af36845a4..00000000000
--- a/tests/language_2/constructor/default_factory2_runtime_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Check type bounds when invoking a redirecting factory method
-
-abstract class Foo {}
-
-abstract class IA<T> {
-
-}
-
-class A<T extends Foo> implements IA<T> {
-  factory A() {}
-}
-
-main() {
-
-}
diff --git a/tests/language_2/constructor/default_factory2_test.dart b/tests/language_2/constructor/default_factory2_test.dart
deleted file mode 100644
index cb3de6fc9a9..00000000000
--- a/tests/language_2/constructor/default_factory2_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check type bounds when invoking a redirecting factory method
-
-abstract class Foo {}
-
-abstract class IA<T> {
-  factory IA() = A<T>;
-  //             ^
-  // [cfe] The type 'T' doesn't extend 'Foo'.
-  //               ^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-}
-
-class A<T extends Foo> implements IA<T> {
-  factory A() {}
-}
-
-main() {
-  var result = new IA<String>();
-}
diff --git a/tests/language_2/constructor/default_factory3_test.dart b/tests/language_2/constructor/default_factory3_test.dart
deleted file mode 100644
index 000ec16f0ce..00000000000
--- a/tests/language_2/constructor/default_factory3_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check possibly still unresolved upper bounds of default factory class.
-
-abstract class A<T extends Foo> {
-  factory A() = _AImpl<T>;
-}
-
-class Moo extends Foo {}
-
-class Foo extends Bar {}
-
-class Bar {}
-
-class _AImpl<T extends Foo> implements A<T> {
-  factory _AImpl() {}
-}
-
-main() {
-  var result = new A<Moo>();
-}
diff --git a/tests/language_2/constructor/default_factory_library.dart b/tests/language_2/constructor/default_factory_library.dart
deleted file mode 100644
index 0b589d7f43a..00000000000
--- a/tests/language_2/constructor/default_factory_library.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test program for testing default factories defined across libraries
-
-library lib;
-
-import "default_factory_library_test.dart" as test;
-
-// References a factory class in another library
-abstract class A {
-  factory A() = test.C.A;
-  int methodA();
-}
diff --git a/tests/language_2/constructor/default_factory_library_test.dart b/tests/language_2/constructor/default_factory_library_test.dart
deleted file mode 100644
index 5e84dcc4897..00000000000
--- a/tests/language_2/constructor/default_factory_library_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test program for testing factories defined across libraries
-
-library test;
-
-import "package:expect/expect.dart";
-import "default_factory_library.dart" as lib;
-
-class B implements lib.A, C {
-  int methodA() {
-    return 1;
-  }
-
-  int methodB() {
-    return 2;
-  }
-}
-
-abstract class C implements lib.A {
-  // Referenced from an abstract class in another library
-  factory C.A() {
-    return new B();
-  }
-}
-
-main() {
-  dynamic val = new lib.A();
-  Expect.equals(true, (val is B));
-  Expect.equals(1, val.methodA());
-  Expect.equals(2, val.methodB());
-}
diff --git a/tests/language_2/constructor/default_factory_runtime_test.dart b/tests/language_2/constructor/default_factory_runtime_test.dart
deleted file mode 100644
index c90675371dc..00000000000
--- a/tests/language_2/constructor/default_factory_runtime_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-// Dart test program for testing default factories.
-
-abstract class Vehicle {
-
-}
-
-class Bike implements Vehicle, GoogleOne {
-  Bike.redOne() {}
-}
-
-abstract class SpaceShip {
-  factory SpaceShip() = GoogleOne;
-}
-
-class GoogleOne implements SpaceShip {
-  GoogleOne.internal_() {}
-  factory GoogleOne() {
-    return new GoogleOne.internal_();
-  }
-  factory GoogleOne.Vehicle() {
-    return new Bike.redOne();
-  }
-}
-
-main() {
-  Expect.equals(true, (new Bike.redOne()) is Bike);
-  Expect.equals(true, (new SpaceShip()) is GoogleOne);
-
-}
diff --git a/tests/language_2/constructor/default_factory_test.dart b/tests/language_2/constructor/default_factory_test.dart
deleted file mode 100644
index 04e563208be..00000000000
--- a/tests/language_2/constructor/default_factory_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test program for testing default factories.
-
-abstract class Vehicle {
-  factory Vehicle() = GoogleOne.Vehicle;
-  //                  ^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.REDIRECT_TO_INVALID_RETURN_TYPE
-  // [cfe] The constructor function type 'GoogleOne Function()' isn't a subtype of 'Vehicle Function()'.
-}
-
-class Bike implements Vehicle, GoogleOne {
-  Bike.redOne() {}
-}
-
-abstract class SpaceShip {
-  factory SpaceShip() = GoogleOne;
-}
-
-class GoogleOne implements SpaceShip {
-  GoogleOne.internal_() {}
-  factory GoogleOne() {
-    return new GoogleOne.internal_();
-  }
-  factory GoogleOne.Vehicle() {
-    return new Bike.redOne();
-  }
-}
-
-main() {
-  Expect.equals(true, (new Bike.redOne()) is Bike);
-  Expect.equals(true, (new SpaceShip()) is GoogleOne);
-  var ensureItsCalled = new Vehicle();
-}
diff --git a/tests/language_2/constructor/default_test.dart b/tests/language_2/constructor/default_test.dart
deleted file mode 100644
index 90e6b871327..00000000000
--- a/tests/language_2/constructor/default_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for default constructors.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  A() : a = 499;
-
-  var a;
-}
-
-class B extends A {
-  B() {
-    Expect.equals(499, a);
-  }
-}
-
-main() {
-  new B();
-}
diff --git a/tests/language_2/constructor/duplicate_final_test.dart b/tests/language_2/constructor/duplicate_final_test.dart
deleted file mode 100644
index 11336f8c7e6..00000000000
--- a/tests/language_2/constructor/duplicate_final_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that duplicate initialization of a final field is a runtime error.
-
-class Class {
-  final f = 10;
-
-  Class(v) : f = v; //# 01: compile-time error
-
-  Class(this.f); //# 02: compile-time error
-
-  // If a field is initialized multiple times in the initializer
-  // list, it's a compile time error.
-  Class(this.f) : f = 0; //# 03: compile-time error
-}
-
-main() {
-  new Class(5); //# 01: continued
-  new Class(5); //# 02: continued
-  new Class(5); //# 03: continued
-}
diff --git a/tests/language_2/constructor/duplicate_initializers_runtime_test.dart b/tests/language_2/constructor/duplicate_initializers_runtime_test.dart
deleted file mode 100644
index c8776a587b4..00000000000
--- a/tests/language_2/constructor/duplicate_initializers_runtime_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check that initializers are not duplicated
-
- class Class {
-   Class(var v) : field_ = v
-   // Test against duplicate final field initialization in initializing list.
-
-   ;
-   Class.field(this.field_)
-   // Test against duplicate final field initialization between initializing
-   // formals and initializer list.
-
-   ;
-   // Test against duplicate final field initialization in initializing formals.
-   Class.two_fields(this.field_
-
-       );
-   final field_;
- }
-
- main() {
-   new Class(42);
-   new Class.field(42);
-   new Class.two_fields(42
-
-       );
- }
diff --git a/tests/language_2/constructor/duplicate_initializers_test.dart b/tests/language_2/constructor/duplicate_initializers_test.dart
deleted file mode 100644
index d98d23d3945..00000000000
--- a/tests/language_2/constructor/duplicate_initializers_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check that initializers are not duplicated
-
-// @dart = 2.9
-
- class Class {
-   Class(var v) : field_ = v
-   // Test against duplicate final field initialization in initializing list.
-    , field_ = 2
-    //^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.FIELD_INITIALIZED_BY_MULTIPLE_INITIALIZERS
-    //       ^
-    // [cfe] 'field_' was already initialized by this constructor.
-   ;
-   Class.field(this.field_)
-   // Test against duplicate final field initialization between initializing
-   // formals and initializer list.
-    : field_ = 2
-    //^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.FIELD_INITIALIZED_IN_PARAMETER_AND_INITIALIZER
-    //       ^
-    // [cfe] 'field_' was already initialized by this constructor.
-   ;
-   // Test against duplicate final field initialization in initializing formals.
-   Class.two_fields(this.field_
-    , this.field_
-    //     ^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_FIELD_FORMAL_PARAMETER
-    // [cfe] 'field_' was already initialized by this constructor.
-    //     ^
-    // [cfe] Duplicated parameter name 'field_'.
-       );
-   final field_;
- }
-
- main() {
-   new Class(42);
-   new Class.field(42);
-   new Class.two_fields(42
-     , 42
-       );
- }
diff --git a/tests/language_2/constructor/duplicate_runtime_test.dart b/tests/language_2/constructor/duplicate_runtime_test.dart
deleted file mode 100644
index 56a762b50ba..00000000000
--- a/tests/language_2/constructor/duplicate_runtime_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Foo {
-  Foo();
-
-}
-
-main() {
-  new Foo();
-}
diff --git a/tests/language_2/constructor/duplicate_test.dart b/tests/language_2/constructor/duplicate_test.dart
deleted file mode 100644
index c234f7213f6..00000000000
--- a/tests/language_2/constructor/duplicate_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Foo {
-  Foo();
-  Foo();
-//^^^
-// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_CONSTRUCTOR
-// [cfe] 'Foo' is already declared in this scope.
-}
-
-main() {
-  new Foo();
-  //  ^
-  // [cfe] Can't use 'Foo' because it is declared more than once.
-}
diff --git a/tests/language_2/constructor/evaluation_redirecting_constructor_test.dart b/tests/language_2/constructor/evaluation_redirecting_constructor_test.dart
deleted file mode 100644
index 89b03a697f3..00000000000
--- a/tests/language_2/constructor/evaluation_redirecting_constructor_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-int counter = 0;
-
-class Bar {
-  Bar() {
-    counter++;
-  }
-}
-
-class A {
-  var _bar = new Bar();
-  A() : this._();
-  A._() {
-    () => 42;
-  }
-}
-
-main() {
-  new A();
-  Expect.equals(1, counter);
-}
diff --git a/tests/language_2/constructor/example_constructor_test.dart b/tests/language_2/constructor/example_constructor_test.dart
deleted file mode 100644
index e069e80af8c..00000000000
--- a/tests/language_2/constructor/example_constructor_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing order of constructor invocation.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var trace = "";
-
-int rec(int i) {
-  trace += "$i ";
-  return i;
-}
-
-class A {
-  A(int x) : x = rec(4) {
-    Expect.equals(3, x); // Parameter x
-    Expect.equals(4, this.x);
-    rec(5);
-  }
-  final int x;
-}
-
-class B extends A {
-  B(this.a, int y, int z)
-      : z = rec(1),
-        y = rec(2),
-        super(rec(3)) {
-    rec(6);
-  }
-  int a;
-  int y;
-  int z;
-}
-
-main() {
-  var test = new B(rec(0), 0, 0);
-  Expect.equals(0, test.a);
-  Expect.equals(4, test.x);
-  Expect.equals(2, test.y);
-  Expect.equals(1, test.z);
-  Expect.equals("0 1 2 3 4 5 6 ", trace);
-}
diff --git a/tests/language_2/constructor/external_constructor_test.dart b/tests/language_2/constructor/external_constructor_test.dart
deleted file mode 100644
index a4bfdba7ab7..00000000000
--- a/tests/language_2/constructor/external_constructor_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test for external constructors.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  final int field;
-
-  const A(this.field);
-  external const A.foo(dynamic arg);
-}
-
-class B extends A {
-  const B(int abc) : super(abc);
-  B.foo(dynamic arg) : super.foo(arg);
-}
-
-void main() {
-  Expect.throws(() {
-    A.foo(42);
-  }, (e) => e is NoSuchMethodError);
-  Expect.throws(() {
-    B.foo(42);
-  }, (e) => e is NoSuchMethodError);
-}
diff --git a/tests/language_2/constructor/forwarding_factory_constructor_default_values_test.dart b/tests/language_2/constructor/forwarding_factory_constructor_default_values_test.dart
deleted file mode 100644
index b0d57ca26e7..00000000000
--- a/tests/language_2/constructor/forwarding_factory_constructor_default_values_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js bug 18257: Properly infer types for forwarding
-// factory constructors with optional parameters with default values.
-
-main() {
-  A a = new A.a1();
-  a.test();
-}
-
-class A {
-  final bool condition;
-
-  A({this.condition: true});
-
-  factory A.a1({condition}) = _A1.boo;
-
-  test() {
-    if (condition != true) {
-      throw "FAILED";
-    }
-  }
-}
-
-class _A1 extends A {
-  _A1.boo({condition: true}) : super(condition: condition);
-}
diff --git a/tests/language_2/constructor/implicit_super_constructor_call_test.dart b/tests/language_2/constructor/implicit_super_constructor_call_test.dart
deleted file mode 100644
index 6247f0c3c9d..00000000000
--- a/tests/language_2/constructor/implicit_super_constructor_call_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This is a regression test for http://dartbug.com/22723.
-
-import "package:expect/expect.dart";
-
-class A {
-  final x;
-
-  @pragma('dart2js:noInline')
-  A({this.x: "foo"}) {
-    Expect.equals("foo", x.toString());
-  }
-}
-
-class C extends A {
-  C(foobar) {}
-}
-
-main() {
-  var c = new C(499);
-  Expect.equals("foo", c.x.toString());
-}
diff --git a/tests/language_2/constructor/implicit_super_constructor_test.dart b/tests/language_2/constructor/implicit_super_constructor_test.dart
deleted file mode 100644
index fe90552d104..00000000000
--- a/tests/language_2/constructor/implicit_super_constructor_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class A {
-  int _x = 42;
-}
-
-abstract class B extends A {}
-
-class C extends B {
-  C() {}
-}
-
-main() {
-  // Regression test for https://github.com/dart-lang/sdk/issues/27421
-  Expect.equals(new C()._x, 42);
-}
diff --git a/tests/language_2/constructor/inference_super_constructor_call_test.dart b/tests/language_2/constructor/inference_super_constructor_call_test.dart
deleted file mode 100644
index 0d0f73d9e35..00000000000
--- a/tests/language_2/constructor/inference_super_constructor_call_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js's inferrer that used to not propagate
-// types given to generative constructors in super constructor calls.
-
-import "package:expect/expect.dart";
-
-class A {
-  final field;
-  A.full(this.field);
-}
-
-class B extends A {
-  // The following super call used to not be analyzed properly.
-  B.full(field) : super.full(field);
-}
-
-main() {
-  // Call [A.full] with an int to have the inferrer think [field] is
-  // always an int.
-  Expect.equals(84, new A.full(42).field + 42);
-  Expect.throwsNoSuchMethodError(() => new B.full(null).field + 42,);
-}
diff --git a/tests/language_2/constructor/initializer_test.dart b/tests/language_2/constructor/initializer_test.dart
deleted file mode 100644
index a473d47cc7d..00000000000
--- a/tests/language_2/constructor/initializer_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  var _x, _y;
-  A(x, [y = 10])
-      : _x = x++,
-        _y = y++ {
-    // Check that value of modified constructor parameters
-    // is remembered in the constructor body.
-    Expect.equals(x, _x + 1);
-    Expect.equals(y, _y + 1);
-  }
-}
-
-class B extends A {
-  var _a, _b;
-  // The super call in the middle of the initializer list conceptually
-  // forces two super call chains, one for initializer list and a second
-  // one for the constructor bodies.
-  B(a, b)
-      : _a = a++,
-        _b = b++,
-        super(a + b++) {
-    Expect.equals(a, _a + 1);
-    Expect.equals(b, _b + 2);
-    Expect.equals(a + (b - 2), _x - 1);
-  }
-}
-
-main() {
-  dynamic o = new B(3, 5);
-  Expect.equals(3, o._a);
-  Expect.equals(5, o._b);
-  Expect.equals(10, o._x);
-  Expect.equals(10, o._y);
-  o = new A(3);
-  Expect.equals(3, o._x);
-  Expect.equals(10, o._y);
-}
diff --git a/tests/language_2/constructor/missing_const_constructor_test.dart b/tests/language_2/constructor/missing_const_constructor_test.dart
deleted file mode 100644
index e5642690fa2..00000000000
--- a/tests/language_2/constructor/missing_const_constructor_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test handling of unknown constructor in const expression.
-
-class GoodClass {
-  const GoodClass();
-}
-
-GoodClass GOOD_CLASS
-    = const GoodClass() //# 01: ok
-    = const GoodClass.BAD_NAME() //# 02: compile-time error
-    = const GoodClass("bad arg") //# 03: compile-time error
-    ;
-
-const BadClass BAD_CLASS = const BadClass(); //# 04: compile-time error
-BadClass BAD_CLASS = const BadClass(); //# 05: compile-time error
-
-void main() {
-  try {
-    print(GOOD_CLASS);
-    print(BAD_CLASS); //# 04: continued
-    print(BAD_CLASS); //# 05: continued
-    print(const BadClass()); //# 06: compile-time error
-  } catch (e) {}
-}
diff --git a/tests/language_2/constructor/multiple_field_assignment_constructor_test.dart b/tests/language_2/constructor/multiple_field_assignment_constructor_test.dart
deleted file mode 100644
index 6e762043c46..00000000000
--- a/tests/language_2/constructor/multiple_field_assignment_constructor_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var a = [null];
-
-class A {
-  var foo;
-  var bar;
-
-  @pragma('vm:never-inline')
-  @pragma('dart2js:noInline')
-  A() {
-    // Currently defeat inlining by using a closure.
-    bar = () => 42;
-    foo = 42;
-    foo = a[0];
-  }
-}
-
-class B {
-  var foo;
-  var bar;
-
-  @pragma('vm:never-inline')
-  @pragma('dart2js:noInline')
-  B() {
-    // Currently defeat inlining by using a closure.
-    bar = () => 42;
-    foo = 42;
-    foo = a[0];
-    if (false) foo = 42;
-  }
-}
-
-main() {
-  // Surround the call to [bar] by allocations of [A] and [B] to
-  // ensure their constructors get analyzed first.
-  new A();
-  new B();
-  bar();
-  new A();
-  new B();
-}
-
-@pragma('vm:never-inline')
-@pragma('dart2js:noInline')
-bar() {
-  // Currently defeat inlining by using a closure.
-  Expect.throwsNoSuchMethodError(() => new A().foo + 42);
-  Expect.throwsNoSuchMethodError(() => new B().foo + 42);
-}
diff --git a/tests/language_2/constructor/name_clash_lib.dart b/tests/language_2/constructor/name_clash_lib.dart
deleted file mode 100644
index f61cef4969d..00000000000
--- a/tests/language_2/constructor/name_clash_lib.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib;
-
-var global = 0;
-
-class A {
-  A() {
-    global += 10;
-    try {} catch (e) {} // no inline
-  }
-}
diff --git a/tests/language_2/constructor/name_clash_test.dart b/tests/language_2/constructor/name_clash_test.dart
deleted file mode 100644
index 539d48fa899..00000000000
--- a/tests/language_2/constructor/name_clash_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'name_clash_lib.dart' as lib;
-
-class A extends lib.A {
-  A() {
-    lib.global += 100;
-    try {} catch (e) {} // no inline
-  }
-}
-
-main() {
-  new A();
-  Expect.equals(110, lib.global);
-}
diff --git a/tests/language_2/constructor/name_test.dart b/tests/language_2/constructor/name_test.dart
deleted file mode 100644
index 445b38d058d..00000000000
--- a/tests/language_2/constructor/name_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Foo {
-  Bar.Foo(); //# 01: compile-time error
-  factory Bar(); //# 02: syntax error
-  factory Bar.Baz(); //# 03: syntax error
-}
-
-void main() {
-  new Foo();
-  new Foo.Foo(); //# 01: continued
-  new Foo.Baz(); //# 03: continued
-}
diff --git a/tests/language_2/constructor/named_arguments_test.dart b/tests/language_2/constructor/named_arguments_test.dart
deleted file mode 100644
index 16ba667c8a4..00000000000
--- a/tests/language_2/constructor/named_arguments_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for default constructors.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-String message;
-
-foo() {
-  message += 'foo';
-  return 1;
-}
-
-bar() {
-  message += 'bar';
-  return 2;
-}
-
-class X {
-  var i;
-  var j;
-  X({a: 'defa', b: 'defb'})
-      : this.i = a,
-        this.j = b;
-  X.foo() : this(b: 1, a: 2);
-  X.bar()
-      : this(
-                     1, // //# 01: compile-time error, runtime error
-            a: 2);
-  X.baz() : this(a: 1, b: 2);
-  X.qux() : this(b: 2);
-  X.hest() : this();
-  X.fisk() : this(b: bar(), a: foo());
-  X.naebdyr() : this(a: foo(), b: bar());
-}
-
-test(x, a, b) {
-  Expect.equals(x.i, a);
-  Expect.equals(x.j, b);
-}
-
-main() {
-  test(new X.foo(), 2, 1);
-  test(new X.bar(), 2, 'defb');
-  test(new X.baz(), 1, 2);
-  test(new X.qux(), 'defa', 2);
-  test(new X.hest(), 'defa', 'defb');
-
-  message = '';
-  new X.fisk();
-  Expect.equals('barfoo', message);
-
-  message = '';
-  new X.naebdyr();
-  Expect.equals('foobar', message);
-}
diff --git a/tests/language_2/constructor/named_constructor_test.dart b/tests/language_2/constructor/named_constructor_test.dart
deleted file mode 100644
index daeb070a218..00000000000
--- a/tests/language_2/constructor/named_constructor_test.dart
+++ /dev/null
@@ -1,107 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library named_constructor_test;
-
-import 'package:expect/expect.dart';
-import 'named_lib.dart' as prefix;
-
-class Class<T> {
-  final int value;
-  Class() : value = 0;
-  Class.named() : value = 1;
-}
-
-void main() {
-  Expect.equals(0, new Class().value);
-  Expect.equals(0, new Class<int>().value);
-
-  Expect.equals(1, new Class.named().value);
-  Expect.equals(1, new Class<int>.named().value);
-  // 'Class.named' is not a type:
-  new Class.named<int>().value;
-  //        ^
-  // [cfe] A constructor invocation can't have type arguments after the constructor name.
-  //             ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS_CONSTRUCTOR
-
-  // 'Class<int>.named<int>' doesn't fit the grammar syntax T.id:
-  new Class<int>.named<int>().value;
-  //             ^^^^^
-  // [analyzer] SYNTACTIC_ERROR.CONSTRUCTOR_WITH_TYPE_ARGUMENTS
-  // [cfe] A constructor invocation can't have type arguments after the constructor name.
-
-  new prefix.Class().value;
-  // 'prefix' is not a type:
-  new prefix<int>.Class().value;
-  //  ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-  //              ^
-  // [cfe] Couldn't find constructor 'prefix.Class'.
-  new prefix.Class<int>().value;
-  // 'prefix<int>.Class<int>' doesn't fit the grammar syntax T.id:
-  new prefix<int>.Class<int>().value;
-  //  ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-  //              ^^^^^
-  // [analyzer] SYNTACTIC_ERROR.CONSTRUCTOR_WITH_TYPE_ARGUMENTS
-  // [cfe] A constructor invocation can't have type arguments after the constructor name.
-  // [cfe] Couldn't find constructor 'prefix.Class'.
-
-  new prefix.Class.named().value;
-  // 'prefix<int>.Class.named' doesn't fit the grammar syntax T.id:
-  new prefix<int>.Class.named().value;
-  //  ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-  //              ^^^^^
-  // [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-  // [cfe] Couldn't find constructor 'prefix.Class'.
-  // [cfe] Expected '(' after this.
-
-
-  // 'prefix.Class<int>.named' doesn't fit the grammar syntax T.id:
-  new prefix.Class<int>.named().value;
-  // 'prefix.Class.named<int>' doesn't fit the grammar syntax T.id:
-  new prefix.Class.named<int>().value;
-  //               ^^^^^
-  // [analyzer] SYNTACTIC_ERROR.CONSTRUCTOR_WITH_TYPE_ARGUMENTS
-  // [cfe] A constructor invocation can't have type arguments after the constructor name.
-
-  // 'prefix<int>.Class<int>' doesn't fit the grammar syntax T.id:
-  new prefix<int>.Class<int>.named().value;
-  //  ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-  //              ^^^^^
-  // [analyzer] SYNTACTIC_ERROR.CONSTRUCTOR_WITH_TYPE_ARGUMENTS
-  // [cfe] A constructor invocation can't have type arguments after the constructor name.
-  // [cfe] Couldn't find constructor 'prefix.Class'.
-
-
-  // 'prefix<int>.Class.named<int>' doesn't fit the grammar syntax T.id:
-  new prefix<int>.Class.named<int>().value;
-  //  ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-  //              ^^^^^
-  // [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-  // [cfe] Couldn't find constructor 'prefix.Class'.
-  // [cfe] Expected '(' after this.
-
-
-  // 'prefix.Class<int>.named<int>' doesn't fit the grammar syntax T.id:
-  new prefix.Class<int>.named<int>().value;
-  //                    ^^^^^
-  // [analyzer] SYNTACTIC_ERROR.CONSTRUCTOR_WITH_TYPE_ARGUMENTS
-  // [cfe] A constructor invocation can't have type arguments after the constructor name.
-
-  // 'prefix<int>.Class<int>.named<int>' doesn't fit the grammar syntax T.id:
-  new prefix<int>.Class<int>.named<int>().value;
-  //  ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-  //              ^^^^^
-  // [analyzer] SYNTACTIC_ERROR.CONSTRUCTOR_WITH_TYPE_ARGUMENTS
-  // [cfe] A constructor invocation can't have type arguments after the constructor name.
-  // [cfe] Couldn't find constructor 'prefix.Class'.
-}
diff --git a/tests/language_2/constructor/named_lib.dart b/tests/language_2/constructor/named_lib.dart
deleted file mode 100644
index dc7ebf440d4..00000000000
--- a/tests/language_2/constructor/named_lib.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library named_constructor_lib;
-
-class Class<T> {
-  final int value;
-  Class() : value = 2;
-  Class.named() : value = 3;
-}
diff --git a/tests/language_2/constructor/named_runtime_test.dart b/tests/language_2/constructor/named_runtime_test.dart
deleted file mode 100644
index 3f47f6c184f..00000000000
--- a/tests/language_2/constructor/named_runtime_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-library named_constructor_test;
-
-import 'package:expect/expect.dart';
-import 'named_lib.dart' as prefix;
-
-class Class<T> {
-  final int value;
-  Class() : value = 0;
-  Class.named() : value = 1;
-}
-
-void main() {
-  Expect.equals(0, new Class().value);
-  Expect.equals(0, new Class<int>().value);
-
-  Expect.equals(1, new Class.named().value);
-  Expect.equals(1, new Class<int>.named().value);
-  // 'Class.named' is not a type:
-
-  // 'Class<int>.named<int>' doesn't fit the grammar syntax T.id:
-
-
-  new prefix.Class().value;
-  // 'prefix' is not a type:
-
-  new prefix.Class<int>().value;
-  // 'prefix<int>.Class<int>' doesn't fit the grammar syntax T.id:
-
-
-  new prefix.Class.named().value;
-  // 'prefix<int>.Class.named' doesn't fit the grammar syntax T.id:
-
-  // 'prefix.Class<int>.named' doesn't fit the grammar syntax T.id:
-  new prefix.Class<int>.named().value;
-  // 'prefix.Class.named<int>' doesn't fit the grammar syntax T.id:
-
-  // 'prefix<int>.Class<int>' doesn't fit the grammar syntax T.id:
-
-  // 'prefix<int>.Class.named<int>' doesn't fit the grammar syntax T.id:
-
-  // 'prefix.Class<int>.named<int>' doesn't fit the grammar syntax T.id:
-
-  // 'prefix<int>.Class<int>.named<int>' doesn't fit the grammar syntax T.id:
-
-}
diff --git a/tests/language_2/constructor/no_such_constructor_runtime_test.dart b/tests/language_2/constructor/no_such_constructor_runtime_test.dart
deleted file mode 100644
index 7da3c44b540..00000000000
--- a/tests/language_2/constructor/no_such_constructor_runtime_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class A {
-  A();
-}
-
-main() {
-
-}
diff --git a/tests/language_2/constructor/no_such_constructor_test.dart b/tests/language_2/constructor/no_such_constructor_test.dart
deleted file mode 100644
index e8746bee028..00000000000
--- a/tests/language_2/constructor/no_such_constructor_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  A();
-}
-
-main() {
-  new A(42);
-  //    ^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS
-  //   ^^^^
-  // [cfe] Too many positional arguments: 0 allowed, but 1 found.
-}
diff --git a/tests/language_2/constructor/non_const_constructor_without_body_test.dart b/tests/language_2/constructor/non_const_constructor_without_body_test.dart
deleted file mode 100644
index e9a07182828..00000000000
--- a/tests/language_2/constructor/non_const_constructor_without_body_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class NonConstConstructorWithoutBodyTest {
-  int x;
-
-  NonConstConstructorWithoutBodyTest();
-  NonConstConstructorWithoutBodyTest.named();
-  NonConstConstructorWithoutBodyTest.initializers() : x = 1;
-  NonConstConstructorWithoutBodyTest.parameters(int x) : x = x + 1;
-  NonConstConstructorWithoutBodyTest.fieldParameter(int this.x);
-  NonConstConstructorWithoutBodyTest.redirection() : this.initializers();
-
-  static testMain() {
-    Expect.equals(null, new NonConstConstructorWithoutBodyTest().x);
-    Expect.equals(null, new NonConstConstructorWithoutBodyTest.named().x);
-    Expect.equals(1, new NonConstConstructorWithoutBodyTest.initializers().x);
-    Expect.equals(2, new NonConstConstructorWithoutBodyTest.parameters(1).x);
-    Expect.equals(
-        2, new NonConstConstructorWithoutBodyTest.fieldParameter(2).x);
-    Expect.equals(1, new NonConstConstructorWithoutBodyTest.redirection().x);
-  }
-}
-
-main() {
-  NonConstConstructorWithoutBodyTest.testMain();
-}
diff --git a/tests/language_2/constructor/non_parameterized_factory2_test.dart b/tests/language_2/constructor/non_parameterized_factory2_test.dart
deleted file mode 100644
index 071fde479a4..00000000000
--- a/tests/language_2/constructor/non_parameterized_factory2_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-abstract class Interface<T> {
-  factory Interface() = Factory<T>;
-  factory Interface.withArg(T value) = Factory<T>.withArg;
-}
-
-class Factory<T> implements Interface<T> {
-  factory Factory() {
-    return null;
-  }
-
-  factory Factory.withArg(T value) {
-    return null;
-  }
-}
-
-main() {
-  new Interface<int>();
-  new Interface<int>.withArg(4);
-}
diff --git a/tests/language_2/constructor/non_parameterized_factory_test.dart b/tests/language_2/constructor/non_parameterized_factory_test.dart
deleted file mode 100644
index f5f1b316c0d..00000000000
--- a/tests/language_2/constructor/non_parameterized_factory_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-abstract class Interface<T> {
-  factory Interface() = Factory<T>;
-  factory Interface.withArg(T value) = Factory<T>.withArg;
-}
-
-class Factory<T> implements Interface<T> {
-  factory Factory() {
-    return null;
-  }
-
-  factory Factory.withArg(T value) {
-    return null;
-  }
-}
-
-main() {
-  new Interface();
-  new Interface.withArg(4);
-}
diff --git a/tests/language_2/constructor/redirect2_runtime_test.dart b/tests/language_2/constructor/redirect2_runtime_test.dart
deleted file mode 100644
index acfb41cca36..00000000000
--- a/tests/language_2/constructor/redirect2_runtime_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Redirection constructors must not have a function body.
-
-class A {
-  var x;
-  A(this.x) {}
-
-  // Redirecting constructor must not have a function body.
-
-
-  // Redirecting constructor must not initialize any fields.
-
-
-  // Redirecting constructor must not have initializing formal parameters.
-
-
-  // Redirection constructors must not call super constructor.
-
-}
-
-main() {
-  new A(3);
-
-
-
-
-}
diff --git a/tests/language_2/constructor/redirect2_test.dart b/tests/language_2/constructor/redirect2_test.dart
deleted file mode 100644
index 39e5632cb5d..00000000000
--- a/tests/language_2/constructor/redirect2_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Redirection constructors must not have a function body.
-
-// @dart = 2.9
-
-class A {
-  var x;
-  A(this.x) {}
-
-  // Redirecting constructor must not have a function body.
-  A.illegalBody(x) : this(3) {}
-  //                         ^
-  // [analyzer] SYNTACTIC_ERROR.REDIRECTING_CONSTRUCTOR_WITH_BODY
-  // [cfe] Redirecting constructors can't have a body.
-
-  // Redirecting constructor must not initialize any fields.
-  A.illegalInit() : this(3), x = 5;
-  //                         ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.FIELD_INITIALIZER_REDIRECTING_CONSTRUCTOR
-  //                           ^
-  // [cfe] A redirecting constructor can't have other initializers.
-
-  // Redirecting constructor must not have initializing formal parameters.
-  A.illegalFormal(this.x) : this(3);
-  //              ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.FIELD_INITIALIZER_REDIRECTING_CONSTRUCTOR
-  //                   ^
-  // [cfe] A redirecting constructor can't have other initializers.
-
-  // Redirection constructors must not call super constructor.
-  A.illegalSuper() : this(3), super(3);
-  //                          ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.SUPER_IN_REDIRECTING_CONSTRUCTOR
-  // [cfe] A redirecting constructor can't have a 'super' initializer.
-  //                                ^
-  // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS
-}
-
-main() {
-  new A(3);
-  new A.illegalBody(10);
-  new A.illegalInit();
-  new A.illegalFormal(10);
-  new A.illegalSuper();
-}
diff --git a/tests/language_2/constructor/redirect_cycle_runtime_test.dart b/tests/language_2/constructor/redirect_cycle_runtime_test.dart
deleted file mode 100644
index 50994cd33c3..00000000000
--- a/tests/language_2/constructor/redirect_cycle_runtime_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Redirection constructors must not be cyclic.
-
-class A {
-  var x;
-  A(x)
-
-      ;
-}
-
-main() {
-  new A(10);
-}
diff --git a/tests/language_2/constructor/redirect_cycle_test.dart b/tests/language_2/constructor/redirect_cycle_test.dart
deleted file mode 100644
index 38b62cf0132..00000000000
--- a/tests/language_2/constructor/redirect_cycle_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Redirection constructors must not be cyclic.
-
-// @dart = 2.9
-
-class A {
-  var x;
-  A(x)
-      : this(0)
-      //^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.RECURSIVE_CONSTRUCTOR_REDIRECT
-      // [cfe] Redirecting constructors can't be cyclic.
-      ;
-}
-
-main() {
-  new A(10);
-}
diff --git a/tests/language_2/constructor/redirect_indirect_cycle_runtime_test.dart b/tests/language_2/constructor/redirect_indirect_cycle_runtime_test.dart
deleted file mode 100644
index d84d2f0c13b..00000000000
--- a/tests/language_2/constructor/redirect_indirect_cycle_runtime_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class A {
-  var x;
-  A(x) : this.named(x, 0);
-  A.named(x, int y)
-      // Redirecting constructors must not be cyclic.
-
-      ;
-}
-
-main() {
-  new A(10);
-}
diff --git a/tests/language_2/constructor/redirect_indirect_cycle_test.dart b/tests/language_2/constructor/redirect_indirect_cycle_test.dart
deleted file mode 100644
index 88c64a87047..00000000000
--- a/tests/language_2/constructor/redirect_indirect_cycle_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  var x;
-  A(x) : this.named(x, 0);
-  //     ^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.RECURSIVE_CONSTRUCTOR_REDIRECT
-  A.named(x, int y)
-      // Redirecting constructors must not be cyclic.
-      : this(x + y)
-      //^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.RECURSIVE_CONSTRUCTOR_REDIRECT
-      // [cfe] Redirecting constructors can't be cyclic.
-      ;
-}
-
-main() {
-  new A(10);
-}
diff --git a/tests/language_2/constructor/redirect_runtime_test.dart b/tests/language_2/constructor/redirect_runtime_test.dart
deleted file mode 100644
index 57571f530f5..00000000000
--- a/tests/language_2/constructor/redirect_runtime_test.dart
+++ /dev/null
@@ -1,77 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for redirection constructors.
-
-import "package:expect/expect.dart";
-
-class A {
-  var x;
-  A(this.x) {}
-  A.named(x, int y) : this(x + y);
-  A.named2(int x, int y, z) : this.named(staticFun(x, y), z);
-
-  // The following is a bit tricky. It is a compile-time error to
-  // refer to this (implicitly or explicitly) from an initializer.
-  // When we remove the line with moreStaticFun, staticFun is really a
-  // static function and it is legal to call it. This is what will
-  // happen in the /none version of this test. However, in /01,
-  // staticFun isn't really a static function and should cause a
-  // compile-time error.
-  static
-
-      int staticFun(int v1, int v2) {
-    return v1 * v2;
-  }
-}
-
-class B extends A {
-  B(y) : super(y + 1) {}
-  B.named(y) : super.named(y, y + 1) {}
-}
-
-class C {
-  final x;
-  const C(this.x);
-  const C.named(x, int y) : this(x + y);
-}
-
-class D extends C {
-  const D(y) : super(y + 1);
-  const D.named(y) : super.named(y, y + 1);
-}
-
-class ConstructorRedirectTest {
-  static testMain() {
-    var a = new A(499);
-    Expect.equals(499, a.x);
-    a = new A.named(349, 499);
-    Expect.equals(349 + 499, a.x);
-    a = new A.named2(11, 42, 99);
-    Expect.equals(11 * 42 + 99, a.x);
-
-    var b = new B(498);
-    Expect.equals(499, b.x);
-    b = new B.named(249);
-    Expect.equals(499, b.x);
-
-    C c = const C(499);
-    Expect.equals(499, c.x);
-    c = const C.named(249, 250);
-    Expect.equals(499, c.x);
-
-    D d = const D(498);
-    Expect.equals(499, d.x);
-    d = const D.named(249);
-    Expect.equals(499, d.x);
-  }
-}
-
-main() {
-  ConstructorRedirectTest.testMain();
-}
diff --git a/tests/language_2/constructor/redirect_test.dart b/tests/language_2/constructor/redirect_test.dart
deleted file mode 100644
index cc4a63ad029..00000000000
--- a/tests/language_2/constructor/redirect_test.dart
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for redirection constructors.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  var x;
-  A(this.x) {}
-  A.named(x, int y) : this(x + y);
-  A.named2(int x, int y, z) : this.named(staticFun(x, y), z);
-  //                                     ^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.IMPLICIT_THIS_REFERENCE_IN_INITIALIZER
-  // [cfe] Can't access 'this' in a field initializer to read 'staticFun'.
-
-  // The following is a bit tricky. It is a compile-time error to
-  // refer to this (implicitly or explicitly) from an initializer.
-  // When we remove the line with moreStaticFun, staticFun is really a
-  // static function and it is legal to call it. This is what will
-  // happen in the /none version of this test. However, in /01,
-  // staticFun isn't really a static function and should cause a
-  // compile-time error.
-  static
-  moreStaticFun() {}
-      int staticFun(int v1, int v2) {
-    return v1 * v2;
-  }
-}
-
-class B extends A {
-  B(y) : super(y + 1) {}
-  B.named(y) : super.named(y, y + 1) {}
-}
-
-class C {
-  final x;
-  const C(this.x);
-  const C.named(x, int y) : this(x + y);
-}
-
-class D extends C {
-  const D(y) : super(y + 1);
-  const D.named(y) : super.named(y, y + 1);
-}
-
-class ConstructorRedirectTest {
-  static testMain() {
-    var a = new A(499);
-    Expect.equals(499, a.x);
-    a = new A.named(349, 499);
-    Expect.equals(349 + 499, a.x);
-    a = new A.named2(11, 42, 99);
-    Expect.equals(11 * 42 + 99, a.x);
-
-    var b = new B(498);
-    Expect.equals(499, b.x);
-    b = new B.named(249);
-    Expect.equals(499, b.x);
-
-    C c = const C(499);
-    Expect.equals(499, c.x);
-    c = const C.named(249, 250);
-    Expect.equals(499, c.x);
-
-    D d = const D(498);
-    Expect.equals(499, d.x);
-    d = const D.named(249);
-    Expect.equals(499, d.x);
-  }
-}
-
-main() {
-  ConstructorRedirectTest.testMain();
-}
diff --git a/tests/language_2/constructor/reference_runtime_10_test.dart b/tests/language_2/constructor/reference_runtime_10_test.dart
deleted file mode 100644
index 4003032bee3..00000000000
--- a/tests/language_2/constructor/reference_runtime_10_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Foo<X> {
-  const Foo();
-  const Foo.bar();
-  const Foo.baz();
-}
-
-main() {
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-  Foo.bar();
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/constructor/reference_runtime_11_test.dart b/tests/language_2/constructor/reference_runtime_11_test.dart
deleted file mode 100644
index 0f0acb0ec54..00000000000
--- a/tests/language_2/constructor/reference_runtime_11_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Foo<X> {
-  const Foo();
-  const Foo.bar();
-  const Foo.baz();
-}
-
-main() {
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-  Foo<int>();
-
-
-
-
-
-}
diff --git a/tests/language_2/constructor/reference_runtime_12_test.dart b/tests/language_2/constructor/reference_runtime_12_test.dart
deleted file mode 100644
index 9e21d2f2033..00000000000
--- a/tests/language_2/constructor/reference_runtime_12_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Foo<X> {
-  const Foo();
-  const Foo.bar();
-  const Foo.baz();
-}
-
-main() {
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-  Foo<int>.bar();
-
-
-
-
-}
diff --git a/tests/language_2/constructor/reference_runtime_1_test.dart b/tests/language_2/constructor/reference_runtime_1_test.dart
deleted file mode 100644
index 2223b1cd0f2..00000000000
--- a/tests/language_2/constructor/reference_runtime_1_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Foo<X> {
-  const Foo();
-  const Foo.bar();
-  const Foo.baz();
-}
-
-main() {
-  new Foo();
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/constructor/reference_runtime_2_test.dart b/tests/language_2/constructor/reference_runtime_2_test.dart
deleted file mode 100644
index 4738ac29825..00000000000
--- a/tests/language_2/constructor/reference_runtime_2_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Foo<X> {
-  const Foo();
-  const Foo.bar();
-  const Foo.baz();
-}
-
-main() {
-
-  new Foo.bar();
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/constructor/reference_runtime_3_test.dart b/tests/language_2/constructor/reference_runtime_3_test.dart
deleted file mode 100644
index 09e2ef8c864..00000000000
--- a/tests/language_2/constructor/reference_runtime_3_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Foo<X> {
-  const Foo();
-  const Foo.bar();
-  const Foo.baz();
-}
-
-main() {
-
-
-
-  new Foo<int>();
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/constructor/reference_runtime_4_test.dart b/tests/language_2/constructor/reference_runtime_4_test.dart
deleted file mode 100644
index 9ea2ba01afc..00000000000
--- a/tests/language_2/constructor/reference_runtime_4_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Foo<X> {
-  const Foo();
-  const Foo.bar();
-  const Foo.baz();
-}
-
-main() {
-
-
-
-
-  new Foo<int>.bar();
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/constructor/reference_runtime_5_test.dart b/tests/language_2/constructor/reference_runtime_5_test.dart
deleted file mode 100644
index 0961239c149..00000000000
--- a/tests/language_2/constructor/reference_runtime_5_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Foo<X> {
-  const Foo();
-  const Foo.bar();
-  const Foo.baz();
-}
-
-main() {
-
-
-
-
-
-
-
-
-
-
-  const Foo();
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/constructor/reference_runtime_6_test.dart b/tests/language_2/constructor/reference_runtime_6_test.dart
deleted file mode 100644
index 732dc9837cb..00000000000
--- a/tests/language_2/constructor/reference_runtime_6_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Foo<X> {
-  const Foo();
-  const Foo.bar();
-  const Foo.baz();
-}
-
-main() {
-
-
-
-
-
-
-
-
-
-
-
-  const Foo.bar();
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/constructor/reference_runtime_7_test.dart b/tests/language_2/constructor/reference_runtime_7_test.dart
deleted file mode 100644
index 9cff394b83e..00000000000
--- a/tests/language_2/constructor/reference_runtime_7_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Foo<X> {
-  const Foo();
-  const Foo.bar();
-  const Foo.baz();
-}
-
-main() {
-
-
-
-
-
-
-
-
-
-
-
-
-
-  const Foo<int>();
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/constructor/reference_runtime_8_test.dart b/tests/language_2/constructor/reference_runtime_8_test.dart
deleted file mode 100644
index ab6a55e997f..00000000000
--- a/tests/language_2/constructor/reference_runtime_8_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Foo<X> {
-  const Foo();
-  const Foo.bar();
-  const Foo.baz();
-}
-
-main() {
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-  const Foo<int>.bar();
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/constructor/reference_runtime_9_test.dart b/tests/language_2/constructor/reference_runtime_9_test.dart
deleted file mode 100644
index e9dd1cd0315..00000000000
--- a/tests/language_2/constructor/reference_runtime_9_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Foo<X> {
-  const Foo();
-  const Foo.bar();
-  const Foo.baz();
-}
-
-main() {
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-  Foo();
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/constructor/reference_runtime_test.dart b/tests/language_2/constructor/reference_runtime_test.dart
deleted file mode 100644
index cd35748cb9b..00000000000
--- a/tests/language_2/constructor/reference_runtime_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Foo<X> {
-  const Foo();
-  const Foo.bar();
-  const Foo.baz();
-}
-
-main() {
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/constructor/reference_test.dart b/tests/language_2/constructor/reference_test.dart
deleted file mode 100644
index 72d1b40cb03..00000000000
--- a/tests/language_2/constructor/reference_test.dart
+++ /dev/null
@@ -1,114 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Foo<X> {
-  const Foo();
-  const Foo.bar();
-  const Foo.baz();
-}
-
-main() {
-  new Foo();
-  new Foo.bar();
-  new Foo.bar.baz();
-  //  ^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-  //          ^
-  // [cfe] Couldn't find constructor 'Foo.bar.baz'.
-  new Foo<int>();
-  new Foo<int>.bar();
-  new Foo<int>.bar.baz();
-  //           ^^^
-  // [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-  // [cfe] Expected '(' after this.
-  //               ^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_METHOD
-  // [cfe] The method 'baz' isn't defined for the class 'Foo<int>'.
-  new Foo.bar<int>();
-  //      ^
-  // [cfe] A constructor invocation can't have type arguments after the constructor name.
-  //         ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS_CONSTRUCTOR
-  new Foo.bar<int>.baz();
-  //  ^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-  //               ^
-  // [cfe] Couldn't find constructor 'Foo.bar.baz'.
-  new Foo.bar.baz<int>();
-  //  ^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-  //          ^^^
-  // [analyzer] SYNTACTIC_ERROR.CONSTRUCTOR_WITH_TYPE_ARGUMENTS
-  // [cfe] A constructor invocation can't have type arguments after the constructor name.
-  // [cfe] Couldn't find constructor 'Foo.bar.baz'.
-
-  const Foo();
-  const Foo.bar();
-  const Foo.bar.baz();
-  //    ^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-  //            ^
-  // [cfe] Couldn't find constructor 'Foo.bar.baz'.
-  const Foo<int>();
-  const Foo<int>.bar();
-  const Foo<int>.bar.baz();
-  //             ^^^
-  // [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-  // [cfe] Expected '(' after this.
-  //                 ^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_METHOD
-  // [cfe] The method 'baz' isn't defined for the class 'Foo<int>'.
-  const Foo.bar<int>();
-  //        ^
-  // [cfe] A constructor invocation can't have type arguments after the constructor name.
-  //           ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS_CONSTRUCTOR
-  const Foo.bar<int>.baz();
-  //    ^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-  //                 ^
-  // [cfe] Couldn't find constructor 'Foo.bar.baz'.
-  const Foo.bar.baz<int>();
-  //    ^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-  //            ^^^
-  // [analyzer] SYNTACTIC_ERROR.CONSTRUCTOR_WITH_TYPE_ARGUMENTS
-  // [cfe] A constructor invocation can't have type arguments after the constructor name.
-  // [cfe] Couldn't find constructor 'Foo.bar.baz'.
-
-  Foo();
-  Foo.bar();
-  Foo.bar.baz();
-//    ^
-// [cfe] Member not found: 'bar'.
-//        ^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_METHOD
-  Foo<int>();
-  Foo<int>.bar();
-  Foo<int>.bar.baz();
-  // ^^^^^
-  // [analyzer] SYNTACTIC_ERROR.EXPERIMENT_NOT_ENABLED
-  // [cfe] The 'constructor-tearoffs' language feature is disabled for this library.
-  //       ^
-  // [cfe] Member not found: 'bar'.
-  //           ^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_METHOD
-  Foo.bar<int>();
-  //  ^
-  // [cfe] A constructor invocation can't have type arguments after the constructor name.
-  //     ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS_CONSTRUCTOR
-  Foo.bar<int>.baz();
-//    ^
-// [cfe] Couldn't find constructor 'bar'.
-//       ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS_CONSTRUCTOR
-  Foo.bar.baz<int>();
-//    ^
-// [cfe] Member not found: 'bar'.
-//        ^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_METHOD
-}
diff --git a/tests/language_2/constructor/return_runtime_test.dart b/tests/language_2/constructor/return_runtime_test.dart
deleted file mode 100644
index 6e2f7d4d480..00000000000
--- a/tests/language_2/constructor/return_runtime_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-// Dart spec 0.03, section 11.10 - generative constructors can only have return
-// statements in the form 'return;'.
-class A {
-  int x;
-  A(this.x) {
-    return;
-  }
-  A.test1(this.x) {
-
-  }
-  A.test2(this.x) {
-
-  }
-  int foo(int y) => x + y;
-}
-
-class B {
-
-}
-
-class C {
-  int value;
-
-}
-
-class D {
-  int value;
-
-}
-
-main() {
-  Expect.equals((new A(1)).foo(10), 11);
-  Expect.equals((new A.test1(1)).foo(10), 11);
-  Expect.equals((new A.test2(1)).foo(10), 11);
-  new B();
-  new C();
-  new D();
-}
diff --git a/tests/language_2/constructor/return_test.dart b/tests/language_2/constructor/return_test.dart
deleted file mode 100644
index 9a57fb1cfa6..00000000000
--- a/tests/language_2/constructor/return_test.dart
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart spec 0.03, section 11.10 - generative constructors can only have return
-// statements in the form 'return;'.
-class A {
-  int x;
-  A(this.x) {
-    return;
-  }
-  A.test1(this.x) {
-    return this;
-//  ^
-// [cfe] Constructors can't have a return type.
-//         ^^^^
-// [analyzer] COMPILE_TIME_ERROR.RETURN_IN_GENERATIVE_CONSTRUCTOR
-  }
-  A.test2(this.x) {
-    return null;
-//  ^
-// [cfe] Constructors can't have a return type.
-//         ^^^^
-// [analyzer] COMPILE_TIME_ERROR.RETURN_IN_GENERATIVE_CONSTRUCTOR
-  }
-  int foo(int y) => x + y;
-}
-
-class B {
-  B() => null;
-  //  ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_IN_GENERATIVE_CONSTRUCTOR
-  //     ^
-  // [cfe] Constructors can't have a return type.
-}
-
-class C {
-  int value;
-  C() : value = 1 { return null; }
-  //                ^
-  // [cfe] Constructors can't have a return type.
-  //                       ^^^^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_IN_GENERATIVE_CONSTRUCTOR
-}
-
-class D {
-  int value;
-  D(): value = 1 => null;
-  //             ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_IN_GENERATIVE_CONSTRUCTOR
-  //                ^
-  // [cfe] Constructors can't have a return type.
-}
-
-main() {
-  Expect.equals((new A(1)).foo(10), 11);
-  Expect.equals((new A.test1(1)).foo(10), 11);
-  Expect.equals((new A.test2(1)).foo(10), 11);
-  new B();
-  new C();
-  new D();
-}
diff --git a/tests/language_2/constructor/setter_test.dart b/tests/language_2/constructor/setter_test.dart
deleted file mode 100644
index a6f5d42d448..00000000000
--- a/tests/language_2/constructor/setter_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test that setters are not invokable in the initializer list.
-
-// @dart = 2.9
-
-class A {
-  A() : a = 499;
-  //    ^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INITIALIZER_FOR_NON_EXISTENT_FIELD
-  // [cfe] 'a' isn't an instance field of this class.
-
-  set a(val) {}
-}
-
-main() {
-  new A();
-}
diff --git a/tests/language_2/constructor/type_parameter_runtime_test.dart b/tests/language_2/constructor/type_parameter_runtime_test.dart
deleted file mode 100644
index 95328834bfe..00000000000
--- a/tests/language_2/constructor/type_parameter_runtime_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Foo {
-
-}
-
-main() {
-  new Foo();
-}
diff --git a/tests/language_2/constructor/type_parameter_test.dart b/tests/language_2/constructor/type_parameter_test.dart
deleted file mode 100644
index 83bc17b4d8b..00000000000
--- a/tests/language_2/constructor/type_parameter_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Foo {
-  Foo<A>() {}
-  // ^^^
-  // [analyzer] SYNTACTIC_ERROR.TYPE_PARAMETER_ON_CONSTRUCTOR
-  // [cfe] Constructors can't have type parameters.
-}
-
-main() {
-  new Foo();
-}
diff --git a/tests/language_2/constructor/unresolved_default_constructor_test.dart b/tests/language_2/constructor/unresolved_default_constructor_test.dart
deleted file mode 100644
index 11a019f23b0..00000000000
--- a/tests/language_2/constructor/unresolved_default_constructor_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test unresolved default constructor calls cause compilation errors.
-
-import 'package:expect/expect.dart';
-
-class A {
-  A.named();
-  static method() {}
-}
-
-main() {
-  A.method();
-  Expect.throws(() => new A());
-  //                      ^
-  // [analyzer] COMPILE_TIME_ERROR.NEW_WITH_UNDEFINED_CONSTRUCTOR_DEFAULT
-  // [cfe] Couldn't find constructor 'A'.
-}
diff --git a/tests/language_2/constructor/unresolved_default_runtime_test.dart b/tests/language_2/constructor/unresolved_default_runtime_test.dart
deleted file mode 100644
index bceb7eefb65..00000000000
--- a/tests/language_2/constructor/unresolved_default_runtime_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test unresolved default constructor calls cause compilation errors.
-
-import 'package:expect/expect.dart';
-
-class A {
-  A.named();
-  static method() {}
-}
-
-main() {
-  A.method();
-
-}
diff --git a/tests/language_2/constructor/unresolved_in_factory_test.dart b/tests/language_2/constructor/unresolved_in_factory_test.dart
deleted file mode 100644
index d90c486c5e2..00000000000
--- a/tests/language_2/constructor/unresolved_in_factory_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that an unresolved method call in a factory is a compile error.
-
-class A {
-  factory A() {
-    foo();
-//  ^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_METHOD
-// [cfe] Method not found: 'foo'.
-  }
-}
-
-main() {
-  new A();
-}
diff --git a/tests/language_2/constructor/with_mixin_test.dart b/tests/language_2/constructor/with_mixin_test.dart
deleted file mode 100644
index 02af9e96700..00000000000
--- a/tests/language_2/constructor/with_mixin_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test super constructor invocation with mixins.
-// Regression test for issue dartbug.com/22604
-
-import "package:expect/expect.dart";
-
-var a_count = 0;
-var b_count = 0;
-
-class A {
-  final int x;
-  A(int this.x) {
-    a_count++;
-  }
-}
-
-class I {}
-
-class B extends A with I {
-  int y;
-
-  B(int xx)
-      : y = 13,
-        super(xx) {
-    b_count++;
-  }
-}
-
-void main() {
-  var b = new B(17);
-  Expect.equals(1, a_count);
-  Expect.equals(1, b_count);
-}
diff --git a/tests/language_2/constructor/with_type_parameters_test.dart b/tests/language_2/constructor/with_type_parameters_test.dart
deleted file mode 100644
index 25d495de209..00000000000
--- a/tests/language_2/constructor/with_type_parameters_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Bar<T> {
-  Bar() {} //# 01: ok
-  Bar.boo() {} //# 02: ok
-  Bar<E>() {} //# 03: compile-time error
-  Bar<E>.boo() {} //# 04: syntax error
-  Bar.boo<E>() {} //# 05: syntax error
-  Bar.boo<E>.baz() {} //# 06: syntax error
-
-  Bar(); //# 07: ok
-  Bar.boo(); //# 08: ok
-  Bar<E>(); //# 09: compile-time error
-  Bar<E>.boo(); //# 10: syntax error
-  Bar.boo<E>(); //# 11: syntax error
-  Bar.boo<E>.baz(); //# 12: syntax error
-
-  const Bar(); //# 13: ok
-  const Bar.boo(); //# 14: ok
-  const Bar<E>(); //# 15: syntax error
-  const Bar<E>.boo(); //# 16: syntax error
-  const Bar.boo<E>(); //# 17: syntax error
-  const Bar.boo<E>.baz(); //# 18: syntax error
-}
-
-main() {}
diff --git a/tests/language_2/control_flow_collections/await_for_inference_test.dart b/tests/language_2/control_flow_collections/await_for_inference_test.dart
deleted file mode 100644
index 56959a1a2dd..00000000000
--- a/tests/language_2/control_flow_collections/await_for_inference_test.dart
+++ /dev/null
@@ -1,112 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test how await for interacts with inference.
-import "package:async_helper/async_helper.dart";
-import 'package:expect/expect.dart';
-
-import 'utils.dart';
-
-Stream<int> stream() => Stream.fromIterable([1]);
-
-void main() {
-  asyncTest(() async {
-    await testBottomUpInference();
-    await testLoopVariableInference();
-    await testTopDownInference();
-  });
-}
-
-Future<void> testBottomUpInference() async {
-  // Lists.
-  Expect.type<List<int>>([await for (var i in stream()) 1]);
-  Expect.type<List<int>>(
-      [await for (var i in stream()) 1, await for (var i in stream()) 2]);
-  Expect.type<List<num>>(
-      [await for (var i in stream()) 1, await for (var i in stream()) 0.2]);
-  Expect.type<List<int>>([await for (var i in stream()) 1, 2]);
-  Expect.type<List<num>>([await for (var i in stream()) 1, 0.2]);
-  Expect.type<List<dynamic>>([await for (var i in stream()) ...[]]);
-  Expect.type<List<int>>([await for (var i in stream()) ...<int>[]]);
-
-  // Maps.
-  Expect.type<Map<int, int>>({await for (var i in stream()) 1: 1});
-  Expect.type<Map<int, int>>(
-      {await for (var i in stream()) 1: 1, await for (var i in stream()) 2: 2});
-  Expect.type<Map<num, num>>({
-    await for (var i in stream()) 1: 0.1,
-    await for (var i in stream()) 0.2: 2
-  });
-  Expect.type<Map<int, int>>({await for (var i in stream()) 1: 1, 2: 2});
-  Expect.type<Map<num, num>>({await for (var i in stream()) 1: 0.1, 0.2: 2});
-  Expect.type<Map<dynamic, dynamic>>({await for (var i in stream()) ...{}});
-  Expect.type<Map<int, int>>({await for (var i in stream()) ...<int, int>{}});
-
-  // Sets.
-  Expect.type<Set<int>>({await for (var i in stream()) 1});
-  Expect.type<Set<int>>(
-      {await for (var i in stream()) 1, await for (var i in stream()) 2});
-  Expect.type<Set<num>>(
-      {await for (var i in stream()) 1, await for (var i in stream()) 0.2});
-  Expect.type<Set<int>>({await for (var i in stream()) 1, 2});
-  Expect.type<Set<num>>({await for (var i in stream()) 1, 0.2});
-  Expect.type<Set<dynamic>>({await for (var i in stream()) ...[]});
-  Expect.type<Set<int>>({await for (var i in stream()) ...<int>[]});
-
-  // If a nested iterable's type is dynamic, the element type is dynamic.
-  Expect.type<List<dynamic>>(
-      [1, await for (var i in stream()) ...([] as dynamic)]);
-  Expect.type<Set<dynamic>>(
-      {1, await for (var i in stream()) ...([] as dynamic)});
-
-  // If a nested maps's type is dynamic, the key and value types are dynamic.
-  Expect.type<Map<dynamic, dynamic>>(
-      {1: 1, await for (var i in stream()) ...({} as dynamic)});
-}
-
-Future<void> testLoopVariableInference() async {
-  // Infers loop variable from stream.
-  Expect.type<List<int>>([await for (var i in stream()) i]);
-  Expect.type<List<String>>(
-      [await for (var i in stream()) i.toRadixString(10)]);
-
-  // Loop variable type is pushed into stream.
-  Expect.listEquals(<int>[1], [await for (int i in expectIntStream([1])) i]);
-}
-
-Future<void> testTopDownInference() async {
-  // Lists.
-
-  // The context element type is pushed into the body.
-  Expect.listEquals(<int>[1],
-      <int>[await for (var i in stream()) expectInt(1)]);
-
-  // Bottom up-inference from elements is not pushed back down into the body.
-  Expect.listEquals(<int>[1, 2],
-      [1, await for (var i in stream()) expectDynamic(2)]);
-
-  // Maps.
-
-  // The context element type is pushed into the body.
-  Expect.mapEquals(<int, String>{1: "s"}, <int, String>{
-    await for (var i in stream()) expectInt(1): expectString("s")
-  });
-
-  // Bottom up-inference from elements is not pushed back down into the body.
-  Expect.mapEquals(<int, String>{1: "s", 2: "t"}, {
-    1: "s",
-    await for (var i in stream()) expectDynamic(2): expectDynamic("t")
-  });
-
-  // Sets.
-
-  // The context element type is pushed into the body.
-  Expect.setEquals(<int>{1}, <int>{await for (var i in stream()) expectInt(1)});
-
-  // Bottom up-inference from elements is not pushed back down into the body.
-  Expect.setEquals(<int>{1, 2},
-      {1, await for (var i in stream()) expectDynamic(2)});
-}
diff --git a/tests/language_2/control_flow_collections/await_for_null_test.dart b/tests/language_2/control_flow_collections/await_for_null_test.dart
deleted file mode 100644
index 482cbffb903..00000000000
--- a/tests/language_2/control_flow_collections/await_for_null_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that a null stream expression produces a runtime error.
-import 'package:async_helper/async_helper.dart';
-
-void main() {
-  asyncTest(() async {
-    // Null stream.
-    Stream<int> nullStream = null;
-    asyncExpectThrows<Error>(() async {
-      <int>[await for (var i in nullStream) 1];
-    }());
-    asyncExpectThrows<Error>(() async {
-      <int, int>{await for (var i in nullStream) 1: 1};
-    }());
-    asyncExpectThrows<Error>(() async {
-      <int>{await for (var i in nullStream) 1};
-    }());
-  });
-}
diff --git a/tests/language_2/control_flow_collections/await_for_syntax_error_test.dart b/tests/language_2/control_flow_collections/await_for_syntax_error_test.dart
deleted file mode 100644
index 6da051a9eb7..00000000000
--- a/tests/language_2/control_flow_collections/await_for_syntax_error_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-void main() {
-  // Use await for in non-async function.
-  var _ = [await for (var i in Stream<int>.empty()) i]; //# 01: compile-time error
-
-  () async {
-    // Use await for variable out of scope.
-    var _ = [await for (var i in Stream<int>.empty()) 1, i]; //# 02: compile-time error
-
-    // Use await for variable in own initializer.
-    var _ = [await for (var i in Stream<Object>.fromIterable([i])) 1]; //# 03: compile-time error
-  }();
-}
diff --git a/tests/language_2/control_flow_collections/await_for_test.dart b/tests/language_2/control_flow_collections/await_for_test.dart
deleted file mode 100644
index d6611433c7c..00000000000
--- a/tests/language_2/control_flow_collections/await_for_test.dart
+++ /dev/null
@@ -1,362 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-import 'utils.dart';
-
-final list = [1, 2, 3, 4];
-final map = {1: 1, 2: 2, 3: 3, 4: 4};
-final set = {1, 2, 3, 4};
-
-Stream<int> stream(List<int> values) => Stream.fromIterable(values);
-Stream<num> numStream(List<num> values) => Stream.fromIterable(values);
-
-void main() {
-  asyncTest(() async {
-    await testList();
-    await testMap();
-    await testSet();
-    await testDuplicateKeys();
-    await testKeyOrder();
-    await testRuntimeErrors();
-  });
-}
-
-Future<void> testList() async {
-  // Only await for.
-  Expect.listEquals(list, <int>[await for (var i in stream(list)) i]);
-
-  // Await for at beginning.
-  Expect.listEquals(list, <int>[
-    await for (var i in stream([1, 2])) i,
-    3,
-    4
-  ]);
-
-  // Await for in middle.
-  Expect.listEquals(list, <int>[
-    1,
-    await for (var i in stream([2, 3])) i,
-    4
-  ]);
-
-  // Await for at end.
-  Expect.listEquals(list, <int>[
-    1,
-    2,
-    await for (var i in stream([3, 4])) i
-  ]);
-
-  // Empty await for.
-  Expect.listEquals(list, <int>[1, 2, await for (var i in stream([])) i, 3, 4]);
-
-  // Multiple await fors.
-  Expect.listEquals(list, <int>[
-    await for (var i in stream([1])) i,
-    2,
-    await for (var i in stream([3, 4])) i
-  ]);
-
-  // Spread inside await for.
-  Expect.listEquals(list, <int>[
-    await for (var i in stream([0, 2])) ...<int>[1 + i, 2 + i]
-  ]);
-
-  // If inside await for.
-  Expect.listEquals(list, <int>[
-    await for (var i in stream([1, 9, 2, 3, 9, 4]))
-      if (i != 9) i
-  ]);
-
-  // Else inside await for.
-  Expect.listEquals(list, <int>[
-    await for (var i in stream([1, -2, 3, -4]))
-      if (i < 0) -i else i
-  ]);
-
-  // For inside await for.
-  Expect.listEquals(list, <int>[
-    await for (var i in stream([0, 2]))
-      for (var j = 1; j <= 2; j++) i + j
-  ]);
-
-  // Does not flatten nested collection literal.
-  Expect.listEquals(
-      [1],
-      [
-        await for (var i in stream([1])) [i]
-      ].first);
-  Expect.mapEquals(
-      {1: 1},
-      [
-        await for (var i in stream([1])) {i: i}
-      ].first);
-  Expect.setEquals(
-      {1},
-      [
-        await for (var i in stream([1])) {i}
-      ].first);
-
-  // Downcast stream.
-  Object obj = stream([1, 2, 3, 4]);
-  Expect.listEquals(list, <int>[await for (var n in obj) n]);
-
-  // Downcast variable.
-  Expect.listEquals(list, <int>[
-    await for (int n in numStream([1, 2, 3, 4])) n
-  ]);
-
-  // Downcast element.
-  Expect.listEquals(list, <int>[
-    await for (num n in numStream([1, 2, 3, 4])) n
-  ]);
-}
-
-Future<void> testMap() async {
-  // Only for.
-  Expect.mapEquals(map, <int, int>{await for (var i in stream(list)) i: i});
-
-  // Await for at beginning.
-  Expect.mapEquals(map, <int, int>{
-    await for (var i in stream([1, 2])) i: i,
-    3: 3,
-    4: 4
-  });
-
-  // Await for in middle.
-  Expect.mapEquals(map, <int, int>{
-    1: 1,
-    await for (var i in stream([2, 3])) i: i,
-    4: 4
-  });
-
-  // Await for at end.
-  Expect.mapEquals(map, <int, int>{
-    1: 1,
-    2: 2,
-    await for (var i in stream([3, 4])) i: i
-  });
-
-  // Empty await for.
-  Expect.mapEquals(map,
-      <int, int>{1: 1, await for (var i in stream([])) i: i, 2: 2, 3: 3, 4: 4});
-
-  // Multiple await fors.
-  Expect.mapEquals(map, <int, int>{
-    await for (var i in stream([1])) i: i,
-    2: 2,
-    await for (var i in stream([3, 4])) i: i
-  });
-
-  // Spread inside await for.
-  Expect.mapEquals(map, <int, int>{
-    await for (var i in stream([0, 2])) ...<int, int>{
-      1 + i: 1 + i,
-      2 + i: 2 + i
-    }
-  });
-
-  // If inside await for.
-  Expect.mapEquals(map, <int, int>{
-    await for (var i in stream([1, 9, 2, 3, 9, 4]))
-      if (i != 9) i: i
-  });
-
-  // Else inside await for.
-  Expect.mapEquals(map, <int, int>{
-    await for (var i in stream([1, -2, 3, -4]))
-      if (i < 0) -i: -i else i: i
-  });
-
-  // For inside await for.
-  Expect.mapEquals(map, <int, int>{
-    await for (var i in stream([0, 2]))
-      for (var j = 1; j <= 2; j++) i + j: i + j
-  });
-
-  // Downcast stream.
-  Object obj = stream([1, 2, 3, 4]);
-  Expect.mapEquals(map, <int, int>{await for (var n in obj) n: n});
-
-  // Downcast variable.
-  Expect.mapEquals(map, <int, int>{
-    await for (int n in numStream([1, 2, 3, 4])) n: n
-  });
-
-  // Downcast element.
-  Expect.mapEquals(map, <int, int>{
-    await for (num n in numStream([1, 2, 3, 4])) n: n
-  });
-}
-
-Future<void> testSet() async {
-  // Only await for.
-  Expect.setEquals(set, <int>{await for (var i in stream(list)) i});
-
-  // Await for at beginning.
-  Expect.setEquals(set, <int>{
-    await for (var i in stream([1, 2])) i,
-    3,
-    4
-  });
-
-  // Await for in middle.
-  Expect.setEquals(set, <int>{
-    1,
-    await for (var i in stream([2, 3])) i,
-    4
-  });
-
-  // Await for at end.
-  Expect.setEquals(set, <int>{
-    1,
-    2,
-    await for (var i in stream([3, 4])) i
-  });
-
-  // Empty await for.
-  Expect.setEquals(set, <int>{1, await for (var i in stream([])) i, 2, 3, 4});
-
-  // Multiple await fors.
-  Expect.setEquals(set, <int>{
-    await for (var i in stream([1])) i,
-    2,
-    await for (var i in stream([3, 4])) i
-  });
-
-  // Spread inside await for.
-  Expect.setEquals(set, <int>{
-    await for (var i in stream([0, 2])) ...<int>[1 + i, 2 + i]
-  });
-
-  // If inside await for.
-  Expect.setEquals(set, <int>{
-    await for (var i in stream([1, 9, 2, 3, 9, 4]))
-      if (i != 9) i
-  });
-
-  // Else inside await for.
-  Expect.setEquals(set, <int>{
-    await for (var i in stream([1, -2, 3, -4]))
-      if (i < 0) -i else i
-  });
-
-  // For inside await for.
-  Expect.setEquals(set, <int>{
-    await for (var i in stream([0, 2]))
-      for (var j = 1; j <= 2; j++) i + j
-  });
-
-  // Does not flatten nested collection literal.
-  Expect.listEquals(
-      [1],
-      {
-        await for (var i in stream([1])) [i]
-      }.first);
-  Expect.mapEquals(
-      {1: 1},
-      {
-        await for (var i in stream([1])) {i: i}
-      }.first);
-  Expect.setEquals(
-      {1},
-      {
-        await for (var i in stream([1])) {i}
-      }.first);
-
-  // Downcast stream.
-  Object obj = stream([1, 2, 3, 4]);
-  Expect.setEquals(set, <int>{await for (var n in obj) n});
-
-  // Downcast variable.
-  Expect.setEquals(set, <int>{
-    await for (int n in numStream([1, 2, 3, 4])) n
-  });
-
-  // Downcast element.
-  Expect.setEquals(set, <int>{
-    await for (num n in numStream([1, 2, 3, 4])) n
-  });
-}
-
-Future<void> testDuplicateKeys() async {
-  Expect.mapEquals(map, <int, int>{
-    1: 1,
-    await for (var i in stream([1, 2, 3])) i: i,
-    await for (var i in stream([2, 3])) i: i,
-    3: 3,
-    4: 4
-  });
-  Expect.setEquals(set, <int>{
-    1,
-    await for (var i in stream([1, 2, 3])) i,
-    await for (var i in stream([2, 3])) i,
-    3,
-    4
-  });
-}
-
-Future<void> testKeyOrder() async {
-  // First equal key wins.
-  var e1a = Equality(1, "a");
-  var e1b = Equality(1, "b");
-  var e2a = Equality(2, "a");
-  var e2b = Equality(2, "b");
-  var keys = [e1b, e2a, e2b];
-  var values = [2, 3, 4];
-
-  var map = <Equality, int>{
-    e1a: 1,
-    await for (var i in stream([0, 1, 2])) keys[i]: values[i]
-  };
-  Expect.equals("1:a,2:a", map.keys.join(","));
-  Expect.equals("2,4", map.values.join(","));
-
-  var set = <Equality>{
-    e1a,
-    await for (var i in stream([0, 1, 2])) keys[i]
-  };
-  Expect.equals("1:a,2:a", set.join(","));
-}
-
-Future<void> testRuntimeErrors() async {
-  // Cast variable.
-  dynamic nonStream = 3;
-  asyncExpectThrows<TypeError>(() async {
-    <int>[await for (int i in nonStream) 1];
-  }());
-  asyncExpectThrows<TypeError>(() async {
-    <int, int>{await for (int i in nonStream) 1: 1};
-  }());
-  asyncExpectThrows<TypeError>(() async {
-    <int>{await for (int i in nonStream) 1};
-  }());
-
-  // Wrong element type.
-  dynamic nonInt = "string";
-  asyncExpectThrows<TypeError>(() async {
-    <int>[
-      await for (var i in stream([1])) nonInt
-    ];
-  }());
-  asyncExpectThrows<TypeError>(() async {
-    <int, int>{
-      await for (var i in stream([1])) nonInt: 1
-    };
-  }());
-  asyncExpectThrows<TypeError>(() async {
-    <int, int>{
-      await for (var i in stream([1])) 1: nonInt
-    };
-  }());
-  asyncExpectThrows<TypeError>(() async {
-    <int>{
-      await for (var i in stream([1])) nonInt
-    };
-  }());
-}
diff --git a/tests/language_2/control_flow_collections/await_for_type_error_test.dart b/tests/language_2/control_flow_collections/await_for_type_error_test.dart
deleted file mode 100644
index ef99194393d..00000000000
--- a/tests/language_2/control_flow_collections/await_for_type_error_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-void main() {
-  () async {
-    // Non-Stream type.
-    int nonStream = 3;
-    var _ = <int>[await for (var i in nonStream) 1]; //# 01: compile-time error
-    var _ = <int, int>{await for (var i in nonStream) 1: 1}; //# 02: compile-time error
-    var _ = <int>{await for (var i in nonStream) 1}; //# 03: compile-time error
-
-    // Wrong element type.
-    Stream<String> s = Stream.fromIterable(["s"]);
-    var _ = <int>[await for (int i in s) 1]; //# 07: compile-time error
-    var _ = <int, int>{await for (int i in s) 1: 1}; //# 08: compile-time error
-    var _ = <int>{await for (int i in s) 1}; //# 09: compile-time error
-
-    // Wrong body element type.
-    var _ = <int>[await for (var i in s) "s"]; //# 10: compile-time error
-    var _ = <int, int>{await for (var i in s) "s": 1}; //# 11: compile-time error
-    var _ = <int, int>{await for (var i in s) 1: "s"}; //# 12: compile-time error
-    var _ = <int>{await for (var i in s) "s"}; //# 13: compile-time error
-  }();
-}
diff --git a/tests/language_2/control_flow_collections/for_await_test.dart b/tests/language_2/control_flow_collections/for_await_test.dart
deleted file mode 100644
index 69fa2d40afb..00000000000
--- a/tests/language_2/control_flow_collections/for_await_test.dart
+++ /dev/null
@@ -1,107 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:async_helper/async_helper.dart";
-import 'package:expect/expect.dart';
-
-final list = [1, 2, 3];
-final map = {1: 1, 2: 2, 3: 3};
-final set = {1, 2, 3};
-
-void main() {
-  asyncTest(() async {
-    await testList();
-    await testMap();
-    await testSet();
-  });
-}
-
-Future<void> testList() async {
-  var future123 = Future.value([1, 2, 3]);
-  var future1 = Future.value(1);
-
-  // Await in iterable.
-  Expect.listEquals(list, [for (var i in await future123) i]);
-
-  // Await in for-in body.
-  Expect.listEquals(list, [for (var i in [1, 2, 3]) await Future.value(i)]);
-
-  // Await in initializer.
-  Expect.listEquals(list, [for (var i = await future1; i < 4; i++) i]);
-
-  // Await in condition.
-  Expect.listEquals(list,
-      [for (var i = 1; await Future.value(i < 4); i++) i]);
-
-  // Await in increment.
-  Expect.listEquals(list,
-      [for (var i = 1; i < 4; await Future(() => i++)) i]);
-
-  // Await in for body.
-  Expect.listEquals(list,
-      [for (var i = 1; i < 4; i++) await Future.value(i)]);
-}
-
-Future<void> testMap() async {
-  var future123 = Future.value([1, 2, 3]);
-  var future1 = Future.value(1);
-
-  // Await in iterable.
-  Expect.mapEquals(map, {for (var i in await future123) i: i});
-
-  // Await in for-in body key.
-  Expect.mapEquals(map,
-      {for (var i in [1, 2, 3]) await Future.value(i): i});
-
-  // Await in for-in body value.
-  Expect.mapEquals(map,
-      {for (var i in [1, 2, 3]) i: await Future.value(i)});
-
-  // Await in initializer.
-  Expect.mapEquals(map, {for (var i = await future1; i < 4; i++) i: i});
-
-  // Await in condition.
-  Expect.mapEquals(map,
-      {for (var i = 1; await Future.value(i < 4); i++) i: i});
-
-  // Await in increment.
-  Expect.mapEquals(map,
-      {for (var i = 1; i < 4; await Future(() => i++)) i: i});
-
-  // Await in for body key.
-  Expect.mapEquals(map,
-      {for (var i = 1; i < 4; i++) await Future.value(i): i});
-
-  // Await in for body value.
-  Expect.mapEquals(map,
-      {for (var i = 1; i < 4; i++) i: await Future.value(i)});
-}
-
-Future<void> testSet() async {
-  var future123 = Future.value([1, 2, 3]);
-  var future1 = Future.value(1);
-
-  // Await in iterable.
-  Expect.setEquals(set, {for (var i in await future123) i});
-
-  // Await in for-in body.
-  Expect.setEquals(set, {for (var i in [1, 2, 3]) await Future.value(i)});
-
-  // Await in initializer.
-  Expect.setEquals(set, {for (var i = await future1; i < 4; i++) i});
-
-  // Await in condition.
-  Expect.setEquals(set,
-      {for (var i = 1; await Future.value(i < 4); i++) i});
-
-  // Await in increment.
-  Expect.setEquals(set,
-      {for (var i = 1; i < 4; await Future(() => i++)) i});
-
-  // Await in for body.
-  Expect.setEquals(set,
-      {for (var i = 1; i < 4; i++) await Future.value(i)});
-}
diff --git a/tests/language_2/control_flow_collections/for_const_error_test.dart b/tests/language_2/control_flow_collections/for_const_error_test.dart
deleted file mode 100644
index 56d191949e2..00000000000
--- a/tests/language_2/control_flow_collections/for_const_error_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-void main() {
-  // For cannot be used in a const collection.
-  const _ = [for (var i in []) 1]; //# 00: compile-time error
-  const _ = {for (var i in []) 1: 1}; //# 01: compile-time error
-  const _ = {for (var i in []) 1}; //# 02: compile-time error
-
-  const _ = [for (; false;) 1]; //# 03: compile-time error
-  const _ = {for (; false;) 1: 1}; //# 04: compile-time error
-  const _ = {for (; false;) 1}; //# 05: compile-time error
-
-  () async {
-    const _ = <int>[await for (var i in []) 1]; //# 06: compile-time error
-    const _ = <int, int>{await for (var i in []) 1: 1}; //# 07: compile-time error
-    const _ = <int>{await for (var i in []) 1}; //# 08: compile-time error
-  }();
-}
diff --git a/tests/language_2/control_flow_collections/for_inference_test.dart b/tests/language_2/control_flow_collections/for_inference_test.dart
deleted file mode 100644
index e7612c33716..00000000000
--- a/tests/language_2/control_flow_collections/for_inference_test.dart
+++ /dev/null
@@ -1,101 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test how control flow interacts with inference.
-import 'package:expect/expect.dart';
-
-import 'utils.dart';
-
-void main() {
-  testBottomUpInference();
-  testLoopVariableInference();
-  testTopDownInference();
-}
-
-void testBottomUpInference() {
-  // Lists.
-  Expect.type<List<int>>([for (; false;) 1]);
-  Expect.type<List<int>>([for (; false;) 1, for (; false;) 2]);
-  Expect.type<List<num>>([for (; false;) 1, for (; false;) 0.2]);
-  Expect.type<List<int>>([for (; false;) 1, 2]);
-  Expect.type<List<num>>([for (; false;) 1, 0.2]);
-  Expect.type<List<dynamic>>([for (; false;) ...[]]);
-  Expect.type<List<int>>([for (; false;) ...<int>[]]);
-
-  // Maps.
-  Expect.type<Map<int, int>>({for (; false;) 1: 1});
-  Expect.type<Map<int, int>>({for (; false;) 1: 1, for (; false;) 2: 2});
-  Expect.type<Map<num, num>>({for (; false;) 1: 0.1, for (; false;) 0.2: 2});
-  Expect.type<Map<int, int>>({for (; false;) 1: 1, 2: 2});
-  Expect.type<Map<num, num>>({for (; false;) 1: 0.1, 0.2: 2});
-  Expect.type<Map<dynamic, dynamic>>({for (; false;) ...{}});
-  Expect.type<Map<int, int>>({for (; false;) ...<int, int>{}});
-
-  // Sets.
-  Expect.type<Set<int>>({for (; false;) 1});
-  Expect.type<Set<int>>({for (; false;) 1, for (; false;) 2});
-  Expect.type<Set<num>>({for (; false;) 1, for (; false;) 0.2});
-  Expect.type<Set<int>>({for (; false;) 1, 2});
-  Expect.type<Set<num>>({for (; false;) 1, 0.2});
-  Expect.type<Set<dynamic>>({for (; false;) ...[]});
-  Expect.type<Set<int>>({for (; false;) ...<int>[]});
-
-  // If a nested iterable's type is dynamic, the element type is dynamic.
-  Expect.type<List<dynamic>>([for (; false;) ...([] as dynamic)]);
-  Expect.type<Set<dynamic>>({1, for (; false;) ...([] as dynamic)});
-
-  // If a nested maps's type is dynamic, the key and value types are dynamic.
-  Expect.type<Map<dynamic, dynamic>>({1: 1, for (; false;) ...({} as dynamic)});
-}
-
-void testLoopVariableInference() {
-  // Infers loop variable from iterable.
-  Expect.type<List<int>>([for (var i in <int>[1]) i]);
-  Expect.type<List<String>>([for (var i in <int>[1]) i.toRadixString(10)]);
-
-  // Infers loop variable from initializer.
-  Expect.type<List<int>>([for (var i = 1; i < 2; i++) i]);
-  Expect.type<List<String>>([for (var i = 1; i < 2; i++) i.toRadixString(10)]);
-
-  // Loop variable type is pushed into sequence.
-  Expect.listEquals(<int>[1], [for (int i in expectIntIterable([1])) i]);
-
-  // Loop variable type is pushed into initializer.
-  Expect.listEquals(<int>[1], [for (int i = expectInt(1); i < 2; i++) i]);
-}
-
-void testTopDownInference() {
-  // Lists.
-
-  // The context element type is pushed into the body.
-  Expect.listEquals(<int>[1], <int>[for (var i = 0; i < 1; i++) expectInt(1)]);
-
-  // Bottom up-inference from elements is not pushed back down into the body.
-  Expect.listEquals(<int>[1, 2],
-      [1, for (var i = 0; i < 1; i++) expectDynamic(2)]);
-
-  // Maps.
-
-  // The context element type is pushed into the body.
-  Expect.mapEquals(<int, String>{1: "s"}, <int, String>{
-    for (var i = 0; i < 1; i++) expectInt(1): expectString("s")
-  });
-
-  // Bottom up-inference from elements is not pushed back down into the body.
-  Expect.mapEquals(<int, String>{1: "s", 2: "t"}, {
-    1: "s",
-    for (var i = 0; i < 1; i++) expectDynamic(2): expectDynamic("t")
-  });
-
-  // Sets.
-
-  // The context element type is pushed into the body.
-  Expect.setEquals(<int>{1}, <int>{for (var i = 0; i < 1; i++) expectInt(1)});
-
-  // Bottom up-inference from elements is not pushed back down into the body.
-  Expect.setEquals(<int>{1, 2},
-      {1, for (var i = 0; i < 1; i++) expectDynamic(2)});
-}
diff --git a/tests/language_2/control_flow_collections/for_non_bool_condition_test.dart b/tests/language_2/control_flow_collections/for_non_bool_condition_test.dart
deleted file mode 100644
index 3c9d45dc8ea..00000000000
--- a/tests/language_2/control_flow_collections/for_non_bool_condition_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-void main() {
-  // Non-bool condition expression.
-  dynamic nonBool = 3;
-  Expect.throwsTypeError(() => <int>[for (; nonBool;) 1]);
-  Expect.throwsTypeError(() => <int, int>{for (; nonBool;) 1: 1});
-  Expect.throwsTypeError(() => <int>{for (; nonBool;) 1});
-}
diff --git a/tests/language_2/control_flow_collections/for_null_condition_test.dart b/tests/language_2/control_flow_collections/for_null_condition_test.dart
deleted file mode 100644
index 637c064b085..00000000000
--- a/tests/language_2/control_flow_collections/for_null_condition_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-void main() {
-  // Null condition expression.
-  bool nullBool = null;
-  Expect.throwsAssertionError(() => <int>[for (; nullBool;) 1]);
-  Expect.throwsAssertionError(() => <int, int>{for (; nullBool;) 1: 1});
-  Expect.throwsAssertionError(() => <int>{for (; nullBool;) 1});
-}
diff --git a/tests/language_2/control_flow_collections/for_runtime_error_test.dart b/tests/language_2/control_flow_collections/for_runtime_error_test.dart
deleted file mode 100644
index 5aa442a8f7b..00000000000
--- a/tests/language_2/control_flow_collections/for_runtime_error_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-void main() {
-  // Cast for variable.
-  dynamic nonInt = "string";
-  Expect.throwsTypeError(() => <int>[for (int i = nonInt; false;) 1]);
-  Expect.throwsTypeError(() => <int, int>{for (int i = nonInt; false;) 1: 1});
-  Expect.throwsTypeError(() => <int>{for (int i = nonInt; false;) 1});
-
-  // Cast for-in variable.
-  dynamic nonIterable = 3;
-  Expect.throwsTypeError(() => <int>[for (int i in nonIterable) 1]);
-  Expect.throwsTypeError(() => <int, int>{for (int i in nonIterable) 1: 1});
-  Expect.throwsTypeError(() => <int>{for (int i in nonIterable) 1});
-
-  // Wrong element type.
-  Expect.throwsTypeError(() => <int>[for (var i = 0; i < 1; i++) nonInt]);
-  Expect.throwsTypeError(
-      () => <int, int>{for (var i = 0; i < 1; i++) nonInt: 1});
-  Expect.throwsTypeError(
-      () => <int, int>{for (var i = 0; i < 1; i++) 1: nonInt});
-  Expect.throwsTypeError(() => <int>{for (var i = 0; i < 1; i++) nonInt});
-}
diff --git a/tests/language_2/control_flow_collections/for_test.dart b/tests/language_2/control_flow_collections/for_test.dart
deleted file mode 100644
index 4e3e13bede1..00000000000
--- a/tests/language_2/control_flow_collections/for_test.dart
+++ /dev/null
@@ -1,250 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'utils.dart';
-
-final list = [1, 2, 3, 4];
-final map = {1: 1, 2: 2, 3: 3, 4: 4};
-final set = {1, 2, 3, 4};
-
-void main() {
-  testList();
-  testMap();
-  testSet();
-  testDuplicateKeys();
-  testKeyOrder();
-  testRuntimeErrors();
-}
-
-void testList() {
-  // Only for.
-  Expect.listEquals(list, <int>[for (var i in list) i]);
-
-  // For at beginning.
-  Expect.listEquals(list, <int>[for (var i in <int>[1, 2]) i, 3, 4]);
-
-  // For in middle.
-  Expect.listEquals(list, <int>[1, for (var i in <int>[2, 3]) i, 4]);
-
-  // For at end.
-  Expect.listEquals(list, <int>[1, 2, for (var i in <int>[3, 4]) i]);
-
-  // Empty for.
-  Expect.listEquals(list,
-      <int>[1, for (var i in <int>[]) i, 2, 3, for (; false;) 9, 4]);
-
-  // Multiple fors.
-  Expect.listEquals(list,
-      <int>[for (var i in <int>[1]) i, 2, for (var i = 3; i <= 4; i++) i]);
-
-  // Spread inside for.
-  Expect.listEquals(list,
-      <int>[for (var i in <int>[0, 2]) ...<int>[1 + i, 2 + i]]);
-
-  // If inside for.
-  Expect.listEquals(list,
-      <int>[for (var i in <int>[1, 9, 2, 3, 9, 4]) if (i != 9) i]);
-
-  // Else inside for.
-  Expect.listEquals(list,
-      <int>[for (var i in <int>[1, -2, 3, -4]) if (i < 0) -i else i]);
-
-  // For inside for.
-  Expect.listEquals(list,
-      <int>[for (var i in <int>[0, 2]) for (var j = 1; j <= 2; j++) i + j]);
-
-  // Does not flatten nested collection literal.
-  Expect.listEquals([1], [for (var i = 1; i < 2; i++) [i]].first);
-  Expect.mapEquals({1: 1}, [for (var i = 1; i < 2; i++) {i: i}].first);
-  Expect.setEquals({1}, [for (var i = 1; i < 2; i++) {i}].first);
-
-  // Downcast iterable.
-  Object obj = <int>[1, 2, 3, 4];
-  Expect.listEquals(list, <int>[for (var n in obj) n]);
-
-  // Downcast variable.
-  Expect.listEquals(list, <int>[for (int n in <num>[1, 2, 3, 4]) n]);
-
-  // Downcast element.
-  Expect.listEquals(list, <int>[for (num n in <num>[1, 2, 3, 4]) n]);
-
-  // Downcast condition.
-  Expect.listEquals([1], <int>[for (var i = 1; (i < 2) as dynamic; i++) i]);
-  Expect.listEquals([1], <int>[for (var i = 1; (i < 2) as Object; i++) i]);
-}
-
-void testMap() {
-  // Only for.
-  Expect.mapEquals(map, <int, int>{for (var i in list) i: i});
-
-  // For at beginning.
-  Expect.mapEquals(map,
-      <int, int>{for (var i in <int>[1, 2]) i: i, 3: 3, 4: 4});
-
-  // For in middle.
-  Expect.mapEquals(map,
-      <int, int>{1: 1, for (var i in <int>[2, 3]) i: i, 4: 4});
-
-  // For at end.
-  Expect.mapEquals(map,
-      <int, int>{1: 1, 2: 2, for (var i in <int>[3, 4]) i: i});
-
-  // Empty for.
-  Expect.mapEquals(map, <int, int>{
-    1: 1,
-    for (var i in <int>[]) i: i,
-    2: 2,
-    3: 3,
-    for (; false;) 9: 9,
-    4: 4
-  });
-
-  // Multiple fors.
-  Expect.mapEquals(map, <int, int>{
-    for (var i in <int>[1]) i: i,
-    2: 2,
-    for (var i = 3; i <= 4; i++) i: i
-  });
-
-  // Spread inside for.
-  Expect.mapEquals(map, <int, int>{
-    for (var i in <int>[0, 2]) ...<int, int>{1 + i: 1 + i, 2 + i: 2 + i}
-  });
-
-  // If inside for.
-  Expect.mapEquals(map,
-      <int, int>{for (var i in <int>[1, 9, 2, 3, 9, 4]) if (i != 9) i: i});
-
-  // Else inside for.
-  Expect.mapEquals(map,
-      <int, int>{for (var i in <int>[1, -2, 3, -4]) if (i < 0) -i: -i else i: i});
-
-  // For inside for.
-  Expect.mapEquals(map, <int, int>{
-    for (var i in <int>[0, 2]) for (var j = 1; j <= 2; j++) i + j: i + j
-  });
-
-  // Downcast iterable.
-  Object obj = <int>[1, 2, 3, 4];
-  Expect.mapEquals(map, <int, int>{for (var n in obj) n: n});
-
-  // Downcast variable.
-  Expect.mapEquals(map, <int, int>{for (int n in <num>[1, 2, 3, 4]) n: n});
-
-  // Downcast element.
-  Expect.mapEquals(map, <int, int>{for (num n in <num>[1, 2, 3, 4]) n: n});
-
-  // Downcast condition.
-  Expect.mapEquals({1 : 1},
-      <int, int>{for (var i = 1; (i < 2) as dynamic; i++) i: i});
-  Expect.mapEquals({1 : 1},
-      <int, int>{for (var i = 1; (i < 2) as Object; i++) i: i});
-}
-
-void testSet() {
-  // Only for.
-  Expect.setEquals(set, <int>{for (var i in list) i});
-
-  // For at beginning.
-  Expect.setEquals(set, <int>{for (var i in <int>[1, 2]) i, 3, 4});
-
-  // For in middle.
-  Expect.setEquals(set, <int>{1, for (var i in <int>[2, 3]) i, 4});
-
-  // For at end.
-  Expect.setEquals(set, <int>{1, 2, for (var i in <int>[3, 4]) i});
-
-  // Empty for.
-  Expect.setEquals(set,
-      <int>{1, for (var i in <int>[]) i, 2, 3, for (; false;) 9, 4});
-
-  // Multiple fors.
-  Expect.setEquals(set,
-      <int>{for (var i in <int>[1]) i, 2, for (var i = 3; i <= 4; i++) i});
-
-  // Spread inside for.
-  Expect.setEquals(set,
-      <int>{for (var i in <int>[0, 2]) ...<int>[1 + i, 2 + i]});
-
-  // If inside for.
-  Expect.setEquals(set,
-      <int>{for (var i in <int>[1, 9, 2, 3, 9, 4]) if (i != 9) i});
-
-  // Else inside for.
-  Expect.setEquals(set,
-      <int>{for (var i in <int>[1, -2, 3, -4]) if (i < 0) -i else i});
-
-  // For inside for.
-  Expect.setEquals(set,
-      <int>{for (var i in <int>[0, 2]) for (var j = 1; j <= 2; j++) i + j});
-
-  // Does not flatten nested collection literal.
-  Expect.listEquals([1], {for (var i = 1; i < 2; i++) [i]}.first);
-  Expect.mapEquals({1: 1}, {for (var i = 1; i < 2; i++) {i: i}}.first);
-  Expect.setEquals({1}, {for (var i = 1; i < 2; i++) {i}}.first);
-
-  // Downcast iterable.
-  Object obj = <int>[1, 2, 3, 4];
-  Expect.setEquals(set, <int>{for (var n in obj) n});
-
-  // Downcast variable.
-  Expect.setEquals(set, <int>{for (int n in <num>[1, 2, 3, 4]) n});
-
-  // Downcast element.
-  Expect.setEquals(set, <int>{for (num n in <num>[1, 2, 3, 4]) n});
-
-  // Downcast condition.
-  Expect.setEquals({1}, <int>{for (var i = 1; (i < 2) as dynamic; i++) i});
-  Expect.setEquals({1}, <int>{for (var i = 1; (i < 2) as Object; i++) i});
-}
-
-void testDuplicateKeys() {
-  Expect.mapEquals(map, <int, int>{
-    1: 1,
-    for (var i in <int>[1, 2, 3]) i: i,
-    for (var i = 2; i <= 3; i++) i: i,
-    3: 3,
-    4: 4
-  });
-  Expect.setEquals(set, <int>{
-    1,
-    for (var i in <int>[1, 2, 3]) i,
-    for (var i = 2; i <= 3; i++) i,
-    3,
-    4
-  });
-}
-
-void testKeyOrder() {
-  // First equal key wins.
-  var e1a = Equality(1, "a");
-  var e1b = Equality(1, "b");
-  var e2a = Equality(2, "a");
-  var e2b = Equality(2, "b");
-  var keys = [e1b, e2a, e2b];
-  var values = [2, 3, 4];
-
-  var map = <Equality, int>{
-    e1a: 1,
-    for (var i = 0; i < keys.length; i++) keys[i]: values[i]
-  };
-  Expect.equals("1:a,2:a", map.keys.join(","));
-  Expect.equals("2,4", map.values.join(","));
-
-  var set = <Equality>{e1a, for (var i = 0; i < keys.length; i++) keys[i]};
-  Expect.equals("1:a,2:a", set.join(","));
-}
-
-void testRuntimeErrors() {
-  // Null iterable.
-  Iterable<int> nullIterable = null;
-  Expect.throwsNoSuchMethodError(() => <int>[for (var i in nullIterable) 1]);
-  Expect.throwsNoSuchMethodError(
-      () => <int, int>{for (var i in nullIterable) 1: 1});
-  Expect.throwsNoSuchMethodError(() => <int>{for (var i in nullIterable) 1});
-}
diff --git a/tests/language_2/control_flow_collections/for_variable_test.dart b/tests/language_2/control_flow_collections/for_variable_test.dart
deleted file mode 100644
index 13c44a0c623..00000000000
--- a/tests/language_2/control_flow_collections/for_variable_test.dart
+++ /dev/null
@@ -1,204 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Tests for how variables and scoping work with for elements.
-import 'package:expect/expect.dart';
-
-import 'utils.dart';
-
-String global = "global";
-
-void main() {
-  testClosure();
-  Test().shadowing();
-  Test().reuseVariable();
-}
-
-void testClosure() {
-  var closures = [];
-  capture(callback) {
-    closures.add(callback);
-    return callback();
-  }
-
-  reset() {
-    closures.clear();
-  }
-
-  // Close over for-in loop variable in element.
-  var list = [for (var i in [0, 1]) () => i];
-  Expect.equals(0, list[0]());
-  Expect.equals(1, list[1]());
-
-  // Close over loop variable in element.
-  list = [for (var i = 0; i < 2; i++) () => i];
-  Expect.equals(0, list[0]());
-  Expect.equals(1, list[1]());
-
-  // Close over variable in condition expression.
-  var list2 = [for (var i = 0; capture(() => i++) < 2;) i];
-  Expect.equals(1, closures[0]());
-  Expect.equals(2, closures[1]());
-  Expect.listEquals([1, 2], list2);
-  reset();
-
-  // Close over variable in increment expression.
-  var list3 = [for (var i = 0; i < 2; capture(() => i++)) i];
-  Expect.equals(1, closures[0]());
-  Expect.equals(2, closures[1]());
-  Expect.listEquals([0, 1], list3);
-  reset();
-}
-
-class TestBase {
-  String inherited = "inherited";
-}
-
-class Test extends TestBase {
-  static String staticField = "static field";
-
-  String field = "field";
-
-  void shadowing() {
-    var local = "local";
-
-    // C-style for.
-    var list = [
-      for (var global = "for"; global != null; global = null) global
-    ];
-    Expect.listEquals(["for"], list);
-
-    list = [
-      for (var staticField = "for"; staticField != null; staticField = null)
-        staticField
-    ];
-    Expect.listEquals(["for"], list);
-
-    list = [
-      for (var field = "for"; field != null; field = null) field
-    ];
-    Expect.listEquals(["for"], list);
-
-    list = [
-      for (var inherited = "for"; inherited != null; inherited = null) inherited
-    ];
-    Expect.listEquals(["for"], list);
-
-    list = [
-      for (var local = "for"; local != null; local = null) local
-    ];
-    Expect.listEquals(["for"], list);
-
-    list = [
-      for (var outer = "outer"; outer != null; outer = null)
-        for (var outer = "for"; outer != null; outer = null)
-          outer
-    ];
-    Expect.listEquals(["for"], list);
-
-    // For-in.
-    list = [for (var global in ["for"]) global];
-    Expect.listEquals(["for"], list);
-
-    list = [for (var staticField in ["for"]) staticField];
-    Expect.listEquals(["for"], list);
-
-    list = [for (var field in ["for"]) field];
-    Expect.listEquals(["for"], list);
-
-    list = [for (var inherited in ["for"]) inherited];
-    Expect.listEquals(["for"], list);
-
-    list = [for (var local in ["for"]) local];
-    Expect.listEquals(["for"], list);
-
-    list = [for (var outer in ["outer"]) for (var outer in ["for"]) outer];
-    Expect.listEquals(["for"], list);
-  }
-
-  void reuseVariable() {
-    var local = "local";
-
-    // C-style for.
-    var list = [
-      for (global = "for"; global == "for"; global = "after") global
-    ];
-    Expect.listEquals(["for"], list);
-    Expect.equals("after", global);
-    global = "global";
-
-    list = [
-      for (staticField = "for"; staticField == "for"; staticField = "after")
-        staticField
-    ];
-    Expect.listEquals(["for"], list);
-    Expect.equals("after", staticField);
-    staticField = "staticField";
-
-    list = [
-      for (field = "for"; field == "for"; field = "after") field
-    ];
-    Expect.listEquals(["for"], list);
-    Expect.equals("after", field);
-    field = "field";
-
-    list = [
-      for (inherited = "for"; inherited == "for"; inherited = "after") inherited
-    ];
-    Expect.listEquals(["for"], list);
-    Expect.equals("after", inherited);
-    inherited = "inherited";
-
-    list = [
-      for (local = "for"; local == "for"; local = "after") local
-    ];
-    Expect.listEquals(["for"], list);
-    Expect.equals("after", local);
-    local = "local";
-
-    list = [
-      for (var outer = "outer"; outer == "outer"; outer = "outer after") ...[
-        for (outer = "for"; outer == "for"; outer = "after") outer,
-        outer
-      ]
-    ];
-    Expect.listEquals(["for", "after"], list);
-
-    // For-in.
-    list = [for (global in ["for"]) global];
-    Expect.listEquals(["for"], list);
-    Expect.equals("for", global);
-    global = "global";
-
-    list = [for (staticField in ["for"]) staticField];
-    Expect.listEquals(["for"], list);
-    Expect.equals("for", staticField);
-    staticField = "staticField";
-
-    list = [for (field in ["for"]) field];
-    Expect.listEquals(["for"], list);
-    Expect.equals("for", field);
-    field = "field";
-
-    list = [for (inherited in ["for"]) inherited];
-    Expect.listEquals(["for"], list);
-    Expect.equals("for", inherited);
-    inherited = "inherited";
-
-    list = [for (local in ["for"]) local];
-    Expect.listEquals(["for"], list);
-    Expect.equals("for", local);
-    local = "local";
-
-    list = [
-      for (var outer in ["outer"]) ...[
-        for (outer in ["for"]) outer,
-        outer
-      ]
-    ];
-    Expect.listEquals(["for", "for"], list);
-  }
-}
diff --git a/tests/language_2/control_flow_collections/if_await_test.dart b/tests/language_2/control_flow_collections/if_await_test.dart
deleted file mode 100644
index cb38452d8af..00000000000
--- a/tests/language_2/control_flow_collections/if_await_test.dart
+++ /dev/null
@@ -1,95 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:async_helper/async_helper.dart";
-import 'package:expect/expect.dart';
-
-final list = [1, 2, 3];
-final map = {1: 1, 2: 2, 3: 3};
-final set = {1, 2, 3};
-
-void main() {
-  asyncTest(() async {
-    await testList();
-    await testMap();
-    await testSet();
-  });
-}
-
-Future<void> testList() async {
-  var futureTrue = Future.value(true);
-  var future2 = Future.value(2);
-  var future9 = Future.value(9);
-
-  // Await in condition.
-  Expect.listEquals(list, [1, if (await futureTrue) 2, 3]);
-
-  // Await in then branch.
-  Expect.listEquals(list, [1, if (true) await future2, 3]);
-
-  // Await in else branch.
-  Expect.listEquals(list, [1, if (false) 9 else await future2, 3]);
-
-  // Await in untaken then branch.
-  Expect.listEquals(list, [1, 2, if (false) await future9, 3]);
-
-  // Await in untaken else branch.
-  Expect.listEquals(list, [1, if (true) 2 else await future9, 3]);
-}
-
-Future<void> testMap() async {
-  var futureTrue = Future.value(true);
-  var future2 = Future.value(2);
-  var future9 = Future.value(9);
-
-  // Await in condition.
-  Expect.mapEquals(map, {1: 1, if (await futureTrue) 2: 2, 3: 3});
-
-  // Await in then branch key.
-  Expect.mapEquals(map, {1: 1, if (true) await future2: 2, 3: 3});
-
-  // Await in then branch value.
-  Expect.mapEquals(map, {1: 1, if (true) 2: await future2, 3: 3});
-
-  // Await in else branch key.
-  Expect.mapEquals(map, {1: 1, if (false) 9: 9 else await future2: 2, 3: 3});
-
-  // Await in else branch value.
-  Expect.mapEquals(map, {1: 1, if (false) 9: 9 else 2: await future2, 3: 3});
-
-  // Await in untaken then branch key.
-  Expect.mapEquals(map, {1: 1, 2: 2, if (false) await future9: 9, 3: 3});
-
-  // Await in untaken then branch value.
-  Expect.mapEquals(map, {1: 1, 2: 2, if (false) 9: await future9, 3: 3});
-
-  // Await in untaken else branch key.
-  Expect.mapEquals(map, {1: 1, if (true) 2: 2 else await future9: 9, 3: 3});
-
-  // Await in untaken else branch value.
-  Expect.mapEquals(map, {1: 1, if (true) 2: 2 else 9: await future9, 3: 3});
-}
-
-Future<void> testSet() async {
-  var futureTrue = Future.value(true);
-  var future2 = Future.value(2);
-  var future9 = Future.value(9);
-
-  // Await in condition.
-  Expect.setEquals(set, {1, if (await futureTrue) 2, 3});
-
-  // Await in then branch.
-  Expect.setEquals(set, {1, if (true) await future2, 3});
-
-  // Await in else branch.
-  Expect.setEquals(set, {1, if (false) 9 else await future2, 3});
-
-  // Await in untaken then branch.
-  Expect.setEquals(set, {1, 2, if (false) await future9, 3});
-
-  // Await in untaken else branch.
-  Expect.setEquals(set, {1, if (true) 2 else await future9, 3});
-}
diff --git a/tests/language_2/control_flow_collections/if_const_error_test.dart b/tests/language_2/control_flow_collections/if_const_error_test.dart
deleted file mode 100644
index 429452af671..00000000000
--- a/tests/language_2/control_flow_collections/if_const_error_test.dart
+++ /dev/null
@@ -1,139 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:collection';
-
-import 'package:expect/expect.dart';
-
-import 'utils.dart';
-
-final nonConstBool = true;
-final nonConstInt = 3;
-
-const dynamic nonBool = 3;
-const dynamic nonInt = "s";
-
-void main() {
-  testList();
-  testMap();
-  testSet();
-  testShortCircuit();
-}
-
-void testList() {
-  // Condition must be constant.
-  const _ = <int>[if (nonConstBool) 1]; //# 01: compile-time error
-
-  // Condition must be Boolean.
-  const _ = <int>[if (nonBool) 1]; //# 02: compile-time error
-
-  // Then element must be constant, whether or not branch is taken.
-  const _ = <int>[if (true) nonConstInt]; //# 03: compile-time error
-  const _ = <int>[if (false) nonConstInt]; //# 04: compile-time error
-
-  // Else element must be constant, whether or not branch is taken.
-  const _ = <int>[if (true) 1 else nonConstInt]; //# 05: compile-time error
-  const _ = <int>[if (false) 1 else nonConstInt]; //# 06: compile-time error
-
-  // Then element must have right type if branch is chosen.
-  const _ = <int>[if (true) nonInt]; //# 07: compile-time error
-
-  // Else element must have right type if branch is chosen.
-  const _ = <int>[if (false) 9 else nonInt]; //# 08: compile-time error
-}
-
-void testMap() {
-  // Condition must be constant.
-  const _ = <int, int>{if (nonConstBool) 1: 1}; //# 09: compile-time error
-
-  // Condition must be Boolean.
-  const _ = <int, int>{if (nonBool) 1: 1}; //# 10: compile-time error
-
-  // Then key element must be constant, whether or not branch is taken.
-  const _ = <int, int>{if (true) nonConstInt: 1}; //# 11: compile-time error
-  const _ = <int, int>{if (false) nonConstInt: 1}; //# 12: compile-time error
-
-  // Then value element must be constant, whether or not branch is taken.
-  const _ = <int, int>{if (true) 1: nonConstInt}; //# 13: compile-time error
-  const _ = <int, int>{if (false) 1: nonConstInt}; //# 14: compile-time error
-
-  // Else key element must be constant, whether or not branch is taken.
-  const _ = <int, int>{if (true) 1 else nonConstInt: 1}; //# 15: compile-time error
-  const _ = <int, int>{if (false) 1 else nonConstInt: 1}; //# 16: compile-time error
-
-  // Else value element must be constant, whether or not branch is taken.
-  const _ = <int, int>{if (true) 1 else 1: nonConstInt}; //# 17: compile-time error
-  const _ = <int, int>{if (false) 1 else 1: nonConstInt}; //# 18: compile-time error
-
-  // Then key element must have right type if branch is chosen.
-  const _ = <int, int>{if (true) nonInt: 1}; //# 19: compile-time error
-
-  // Then value element must have right type if branch is chosen.
-  const _ = <int, int>{if (true) 1: nonInt}; //# 20: compile-time error
-
-  // Else key element must have right type if branch is chosen.
-  const _ = <int, int>{if (false) 9 else nonInt: 1}; //# 21: compile-time error
-
-  // Else value element must have right type if branch is chosen.
-  const _ = <int, int>{if (false) 9 else 1: nonInt}; //# 22: compile-time error
-
-  // Key cannot override operator.==().
-  const obj = 0.1;
-  const _ = {if (true) 0.1: 1}; //# 23: compile-time error
-  const _ = {if (true) Duration(seconds: 0): 1}; //# 24: compile-time error
-  const _ = {if (true) obj: 1}; //# 25: compile-time error
-
-  // Cannot have key collision when branch is chosen.
-  const _ = <int, int>{1: 1, if (true) 1: 1}; //# 25: compile-time error
-  const _ = <int, int>{if (true) 1: 1, if (true) 1: 1}; //# 26: compile-time error
-}
-
-void testSet() {
-  // Condition must be constant.
-  const _ = <int>{if (nonConstBool) 1}; //# 27: compile-time error
-
-  // Condition must be Boolean.
-  const _ = <int>{if (nonBool) 1}; //# 28: compile-time error
-
-  // Then element must be constant, whether or not branch is taken.
-  const _ = <int>{if (true) nonConstInt}; //# 29: compile-time error
-  const _ = <int>{if (false) nonConstInt}; //# 30: compile-time error
-
-  // Else element must be constant, whether or not branch is taken.
-  const _ = <int>{if (true) 1 else nonConstInt}; //# 31: compile-time error
-  const _ = <int>{if (false) 1 else nonConstInt}; //# 32: compile-time error
-
-  // Then element must have right type if branch is chosen.
-  const _ = <int>{if (true) nonInt}; //# 33: compile-time error
-
-  // Else element must have right type if branch is chosen.
-  const _ = <int>{if (false) 9 else nonInt}; //# 34: compile-time error
-
-  // Cannot override operator.==().
-  const obj = 0.1;
-  const _ = {if (true) 0.1}; //# 35: compile-time error
-  const _ = {if (true) Duration(seconds: 0)}; //# 36: compile-time error
-  const _ = {if (true) obj}; //# 37: compile-time error
-
-  // Cannot have collision when branch is chosen.
-  const _ = <int>{1, if (true) 1}; //# 38: compile-time error
-  const _ = <int>{if (true) 1, if (true) 1}; //# 39: compile-time error
-}
-
-void testShortCircuit() {
-  // A const expression that throws causes a compile error if it occurs inside
-  // the chosen branch of an if.
-
-  // Store null in a dynamically-typed constant to avoid the type error on "+".
-  const dynamic nil = null;
-
-  // With no else.
-  const _ = [if (true) nil + 1]; //# 40: compile-time error
-
-  // With else.
-  const _ = [if (true) nil + 1 else 1]; //# 41: compile-time error
-  const _ = [if (false) 1 else nil + 1]; //# 42: compile-time error
-}
diff --git a/tests/language_2/control_flow_collections/if_const_test.dart b/tests/language_2/control_flow_collections/if_const_test.dart
deleted file mode 100644
index e6c75ce2e89..00000000000
--- a/tests/language_2/control_flow_collections/if_const_test.dart
+++ /dev/null
@@ -1,244 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'utils.dart';
-
-// Typed as dynamic to also test spreading a value of type dynamic.
-const dynamic list = [1, 2, 3];
-const dynamic map = {1: 1, 2: 2, 3: 3};
-const dynamic set = {1, 2, 3};
-
-const dynamic dynamicTrue = true;
-const Object objectTrue = true;
-
-void main() {
-  testList();
-  testMap();
-  testSet();
-  testShortCircuit();
-  testDuplicateKeys();
-  testKeyOrder();
-}
-
-void testList() {
-  // Then if true.
-  Expect.identical(list, const <int>[1, if (true) 2, 3]);
-
-  // Nothing if false and no else.
-  Expect.identical(list, const <int>[1, if (false) 9, 2, 3]);
-
-  // Else if false.
-  Expect.identical(list, const <int>[1, if (false) 9 else 2, 3]);
-
-  // Only if.
-  Expect.identical(const [1], const <int>[if (true) 1]);
-
-  // If at beginning.
-  Expect.identical(list, const <int>[if (true) 1, 2, 3]);
-
-  // If in middle.
-  Expect.identical(list, const <int>[1, if (true) 2, 3]);
-
-  // If at end.
-  Expect.identical(list, const <int>[1, 2, if (true) 3]);
-
-  // Multiple ifs.
-  Expect.identical(list,
-      const <int>[if (true) 1, if (false) 9, 2, if (true) 3]);
-
-  // Cast condition.
-  Expect.identical(const [1], const <int>[if (dynamicTrue) 1]);
-  Expect.identical(const [1], const <int>[if (objectTrue) 1]);
-
-  // Does not flatten nested collection literal.
-  Expect.identical(const [1], const [if (true) [1]].first);
-  Expect.identical(const {1: 1}, const [if (true) {1: 1}].first);
-  Expect.identical(const {1}, const [if (true) {1}].first);
-
-  // Nested spread.
-  Expect.identical(list,
-      const <int>[if (true) ...<int>[1, 2], if (false) 9 else ...<int>[3]]);
-
-  // Nested if in then.
-  Expect.identical(const [1],
-      const <int>[if (true) if (true) 1, if (true) if (false) 9]);
-
-  // Nested if in else.
-  Expect.identical(const [1], const <int>[if (false) 9 else if (true) 1]);
-}
-
-void testMap() {
-  // Then if true.
-  Expect.identical(map, const <int, int>{1: 1, if (true) 2: 2, 3: 3});
-
-  // Nothing if false and no else.
-  Expect.identical(map, const <int, int>{1: 1, if (false) 9: 9, 2: 2, 3: 3});
-
-  // Else if false.
-  Expect.identical(map,
-      const <int, int>{1: 1, if (false) 9: 9 else 2: 2, 3: 3});
-
-  // Only if.
-  Expect.identical(const {1: 1}, const <int, int>{if (true) 1: 1});
-
-  // If at beginning.
-  Expect.identical(map, const <int, int>{if (true) 1: 1, 2: 2, 3: 3});
-
-  // If in middle.
-  Expect.identical(map, const <int, int>{1: 1, if (true) 2: 2, 3: 3});
-
-  // If at end.
-  Expect.identical(map, const <int, int>{1: 1, 2: 2, if (true) 3: 3});
-
-  // Multiple ifs.
-  Expect.identical(map,
-      const <int, int>{if (true) 1: 1, if (false) 9: 9, 2: 2, if (true) 3: 3});
-
-  // Cast condition.
-  Expect.identical(const {1: 1}, const <int, int>{if (dynamicTrue) 1: 1});
-  Expect.identical(const {1: 1}, const <int, int>{if (objectTrue) 1: 1});
-
-  // Nested spread.
-  Expect.identical(map, const <int, int>{
-    if (true) ...<int, int>{1: 1, 2: 2},
-    if (false) 9: 9 else ...<int, int>{3: 3}
-  });
-
-  // Nested if in then.
-  Expect.identical(const {1: 1},
-      const <int, int>{if (true) if (true) 1: 1, if (true) if (false) 9: 9});
-
-  // Nested if in else.
-  Expect.identical(const {1: 1},
-      const <int, int>{if (false) 9: 9 else if (true) 1: 1});
-}
-
-void testSet() {
-  // Then if true.
-  Expect.identical(set, const <int>{1, if (true) 2, 3});
-
-  // Nothing if false and no else.
-  Expect.identical(set, const <int>{1, if (false) 9, 2, 3});
-
-  // Else if false.
-  Expect.identical(set, const <int>{1, if (false) 9 else 2, 3});
-
-  // Only if.
-  Expect.identical(const <int>{1}, const <int>{if (true) 1});
-
-  // If at beginning.
-  Expect.identical(set, const <int>{if (true) 1, 2, 3});
-
-  // If in middle.
-  Expect.identical(set, const <int>{1, if (true) 2, 3});
-
-  // If at end.
-  Expect.identical(set, const <int>{1, 2, if (true) 3});
-
-  // Multiple ifs.
-  Expect.identical(set,
-      const <int>{if (true) 1, if (false) 9, 2, if (true) 3});
-
-  // Cast condition.
-  Expect.identical(const <int>{1}, const <int>{if (dynamicTrue) 1});
-  Expect.identical(const <int>{1}, const <int>{if (objectTrue) 1});
-
-  // Does not flatten nested collection literal.
-  Expect.identical(const <int>[1], const <List<int>>{if (true) [1]}.first);
-  Expect.identical(
-      const <int, int>{1: 1}, const <Map<int, int>>{if (true) {1: 1}}.first);
-  Expect.identical(const <int>{1}, const <Set<int>>{if (true) {1}}.first);
-
-  // Nested spread.
-  Expect.identical(set,
-      const <int>{if (true) ...<int>[1, 2], if (false) 9 else ...<int>[3]});
-
-  // Nested if in then.
-  Expect.identical(const <int>{1},
-      const <int>{if (true) if (true) 1, if (true) if (false) 9});
-
-  // Nested if in else.
-  Expect.identical(const <int>{1}, const <int>{if (false) 9 else if (true) 1});
-}
-
-void testShortCircuit() {
-  // A const expression that throws does not cause a compile error if it occurs
-  // inside an unchosen branch of an if.
-
-  // Store null in a dynamically-typed constant to avoid the type error on "+".
-  const dynamic nil = null;
-
-  Expect.identical(const <int>[1],
-      const <int>[if (true) 1, if (false) nil + 1]);
-  Expect.identical(const <int>[1, 2],
-      const <int>[if (true) 1 else nil + 1, if (false) nil + 1 else 2]);
-
-  Expect.identical(const <int, int>{1: 1}, const <int, int>{
-    if (true) 1: 1,
-    if (false) nil + 1: 9,
-    if (false) 9: nil + 1
-  });
-  Expect.identical(const <int, int>{1: 1, 2: 2}, const <int, int>{
-    if (true) 1: 1 else nil + 1: 9,
-    if (false) 9: nil + 1 else 2: 2
-  });
-
-  Expect.identical(const <int>{1},
-      const <int>{if (true) 1, if (false) nil + 1});
-  Expect.identical(const <int>{1, 2},
-      const <int>{if (true) 1 else nil + 1, if (false) nil + 1 else 2});
-
-  // A const expression whose value isn't the right type does not cause a
-  // compile error if it occurs inside an unchosen branch.
-  const dynamic nonInt = "s";
-
-  Expect.identical(const <int>[1], const <int>[if (true) 1, if (false) nonInt]);
-  Expect.identical(const <int>[1, 2],
-      const <int>[if (true) 1 else nonInt, if (false) nonInt else 2]);
-
-  Expect.identical(const <int, int>{1: 1}, const <int, int>{
-    if (true) 1: 1,
-    if (false) nonInt: 9,
-    if (false) 9: nonInt
-  });
-  Expect.identical(const <int, int>{1: 1, 2: 2}, const <int, int>{
-    if (true) 1: 1 else nonInt: 9,
-    if (false) 9: nonInt else 2: 2
-  });
-
-  Expect.identical(const <int>{1}, const <int>{if (true) 1, if (false) nonInt});
-  Expect.identical(const <int>{1, 2},
-      const <int>{if (true) 1 else nonInt, if (false) nonInt else 2});
-}
-
-void testDuplicateKeys() {
-  // Duplicate keys from unchosen branches are not an error.
-  Expect.mapEquals(map, <int, int>{
-    1: 1,
-    if (false) 1: 1,
-    if (true) 2: 2 else 3: 3,
-    3: 3
-  });
-
-  Expect.setEquals(set, const <int>{1, if (false) 1, if (true) 2 else 3, 3});
-}
-
-void testKeyOrder() {
-  // Canonicalization isn't affected by which elements are conditional.
-  Expect.identical(map,
-      const <int, int>{1: 1, if (true) 2: 2, if (false) 9: 9, 3: 3});
-  Expect.identical(map,
-      const <int, int>{if (false) 9: 9 else 1: 1, 2: 2, if (true) 3: 3});
-
-  Expect.identical(set, const <int>{1, if (true) 2, if (false) 9, 3});
-  Expect.identical(set, const <int>{if (false) 9 else 1, 2, if (true) 3});
-
-  // Ordering does affect canonicalization.
-  Expect.notIdentical(map, const <int, int>{1: 1, if (true) 3: 3, 2: 2});
-  Expect.notIdentical(set, const <int>{1, if (true) 3, 2});
-}
diff --git a/tests/language_2/control_flow_collections/if_inference_test.dart b/tests/language_2/control_flow_collections/if_inference_test.dart
deleted file mode 100644
index 59c38ebffb6..00000000000
--- a/tests/language_2/control_flow_collections/if_inference_test.dart
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test how control flow interacts with inference.
-import 'package:expect/expect.dart';
-
-import 'utils.dart';
-
-void main() {
-  testBottomUpInference();
-  testTopDownInference();
-}
-
-void testBottomUpInference() {
-  // Lists.
-  expectListOf<int>([if (true) 1]);
-  expectListOf<int>([if (true) 1 else 2]);
-  expectListOf<num>([if (true) 1 else 0.2]);
-  expectListOf<int>([if (true) 1, 2]);
-  expectListOf<num>([if (true) 1, 0.2]);
-  expectListOf<dynamic>([if (true) ...[]]);
-  expectListOf<int>([if (true) ...<int>[]]);
-
-  // Maps.
-  expectMapOf<int, int>({if (true) 1: 1});
-  expectMapOf<int, int>({if (true) 1: 1 else 2: 2});
-  expectMapOf<num, num>({if (true) 1: 0.1 else 0.2: 2});
-  expectMapOf<int, int>({if (true) 1: 1, 2: 2});
-  expectMapOf<num, num>({if (true) 1: 0.1, 0.2: 2});
-  expectMapOf<dynamic, dynamic>({if (true) ...{}});
-  expectMapOf<int, int>({if (true) ...<int, int>{}});
-
-  // Sets.
-  expectSetOf<int>({if (true) 1});
-  expectSetOf<int>({if (true) 1 else 2});
-  expectSetOf<num>({if (true) 1 else 0.2});
-  expectSetOf<int>({if (true) 1, 2});
-  expectSetOf<num>({if (true) 1, 0.2});
-  expectSetOf<dynamic>({if (true) ...[]});
-  expectSetOf<int>({if (true) ...<int>[]});
-
-  // If a nested iterable's type is dynamic, the element type is dynamic.
-  expectListOf<dynamic>([if (true) ...([] as dynamic)]);
-  expectSetOf<dynamic>({1, if (true) ...([] as dynamic)});
-
-  // If a nested maps's type is dynamic, the key and value types are dynamic.
-  expectMapOf<dynamic, dynamic>({1: 1, if (true) ...({} as dynamic)});
-}
-
-void testTopDownInference() {
-  // Lists.
-
-  // The context element type is pushed into the branches.
-  Expect.listEquals(<int>[1], <int>[if (true) expectInt(1)]);
-  Expect.listEquals(<int>[1], <int>[if (false) 9 else expectInt(1)]);
-
-  // Bottom up-inference from elements is not pushed back down into branches.
-  Expect.listEquals(<int>[1, 2], [1, if (true) expectDynamic(2)]);
-  Expect.listEquals(<int>[1, 2], [1, if (false) 9 else expectDynamic(2)]);
-
-  // Maps.
-
-  // The context element type is pushed into the branches.
-  Expect.mapEquals(<int, String>{1: "s"},
-      <int, String>{if (true) expectInt(1): expectString("s")});
-
-  // Bottom up-inference from elements is not pushed back down into branches.
-  Expect.mapEquals(<int, String>{1: "s", 2: "t"},
-      {1: "s", if (true) expectDynamic(2): expectDynamic("t")});
-
-  // Sets.
-
-  // The context element type is pushed into the branches.
-  Expect.setEquals(<int>{1}, <int>{if (true) expectInt(1)});
-  Expect.setEquals(<int>{1}, <int>{if (false) 9 else expectInt(1)});
-
-  // Bottom up-inference from elements is not pushed back down into branches.
-  Expect.setEquals(<int>{1, 2}, {1, if (true) expectDynamic(2)});
-  Expect.setEquals(<int>{1, 2}, {1, if (false) 9 else expectDynamic(2)});
-}
diff --git a/tests/language_2/control_flow_collections/if_null_condition_test.dart b/tests/language_2/control_flow_collections/if_null_condition_test.dart
deleted file mode 100644
index b7de51eac67..00000000000
--- a/tests/language_2/control_flow_collections/if_null_condition_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-void main() {
-  bool nullBool = null;
-  Expect.throwsAssertionError(() => <int>[if (nullBool) 1]);
-  Expect.throwsAssertionError(() => <int, int>{if (nullBool) 1: 1});
-  Expect.throwsAssertionError(() => <int>{if (nullBool) 1});
-}
diff --git a/tests/language_2/control_flow_collections/if_promotion_test.dart b/tests/language_2/control_flow_collections/if_promotion_test.dart
deleted file mode 100644
index bdac6906544..00000000000
--- a/tests/language_2/control_flow_collections/if_promotion_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  var a = "a";
-}
-
-class B extends A {
-  var b = "b";
-}
-
-class C extends B {
-  var c = "c";
-}
-
-void main() {
-  A a = A();
-  print(a.a);
-  print(a.b); //# 01: compile-time error
-
-  var list = [
-    a.a,
-    a.b, //# 02: compile-time error
-    a.c, //# 03: compile-time error
-
-    if (a is B) [
-      a.a,
-      a.b,
-      a.c, //# 04: compile-time error
-
-      if (a is C) [
-        a.a,
-        a.b,
-        a.c,
-      ] else [
-        a.a,
-        a.b,
-        a.c, //# 05: compile-time error
-      ],
-
-      a.a,
-      a.b,
-      a.c, //# 06: compile-time error
-    ] else [
-      a.a,
-      a.b, //# 07: compile-time error
-      a.c, //# 08: compile-time error
-    ],
-
-    a.a,
-    a.b, //# 09: compile-time error
-    a.c, //# 10: compile-time error
-  ];
-}
diff --git a/tests/language_2/control_flow_collections/if_runtime_error_test.dart b/tests/language_2/control_flow_collections/if_runtime_error_test.dart
deleted file mode 100644
index 1d92e32285a..00000000000
--- a/tests/language_2/control_flow_collections/if_runtime_error_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-void main() {
-  dynamic nonBool = 3;
-  Expect.throwsTypeError(() => <int>[if (nonBool) 1]);
-  Expect.throwsTypeError(() => <int, int>{if (nonBool) 1: 1});
-  Expect.throwsTypeError(() => <int>{if (nonBool) 1});
-}
diff --git a/tests/language_2/control_flow_collections/if_test.dart b/tests/language_2/control_flow_collections/if_test.dart
deleted file mode 100644
index c1aedc0d2a1..00000000000
--- a/tests/language_2/control_flow_collections/if_test.dart
+++ /dev/null
@@ -1,230 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'utils.dart';
-
-final list = [1, 2, 3];
-final map = {1: 1, 2: 2, 3: 3};
-final set = {1, 2, 3};
-
-void main() {
-  testList();
-  testMap();
-  testSet();
-  testShortCircuit();
-  testDuplicateKeys();
-  testKeyOrder();
-}
-
-void testList() {
-  // Then if true.
-  Expect.listEquals(list, <int>[1, if (true) 2, 3]);
-
-  // Nothing if false and no else.
-  Expect.listEquals(list, <int>[1, if (false) 9, 2, 3]);
-
-  // Else if false.
-  Expect.listEquals(list, <int>[1, if (false) 9 else 2, 3]);
-
-  // Only if.
-  Expect.listEquals([1], <int>[if (true) 1]);
-
-  // If at beginning.
-  Expect.listEquals(list, <int>[if (true) 1, 2, 3]);
-
-  // If in middle.
-  Expect.listEquals(list, <int>[1, if (true) 2, 3]);
-
-  // If at end.
-  Expect.listEquals(list, <int>[1, 2, if (true) 3]);
-
-  // Multiple ifs.
-  Expect.listEquals(list,
-      <int>[if (true) 1, if (false) 9, 2, if (true) 3]);
-
-  // Cast condition.
-  Expect.listEquals(<int>[1], <int>[if (true as dynamic) 1]);
-  Expect.listEquals(<int>[1], <int>[if (true as Object) 1]);
-
-  // Does not flatten nested collection literal.
-  Expect.listEquals([1], [if (true) [1]].first);
-  Expect.mapEquals({1: 1}, [if (true) {1: 1}].first);
-  Expect.setEquals({1}, [if (true) {1}].first);
-
-  // Nested spread.
-  Expect.listEquals(list,
-      <int>[if (true) ...<int>[1, 2], if (false) 9 else ...<int>[3]]);
-
-  // Nested if in then.
-  Expect.listEquals([1], <int>[if (true) if (true) 1, if (true) if (false) 9]);
-
-  // Nested if in else.
-  Expect.listEquals([1], <int>[if (false) 9 else if (true) 1]);
-
-  // Nested for in then.
-  Expect.listEquals(list, <int>[if (true) for (var i in list) i]);
-
-  // Nested for in else.
-  Expect.listEquals(list, <int>[if (false) 9 else for (var i in list) i]);
-}
-
-void testMap() {
-  // Then if true.
-  Expect.mapEquals(map, <int, int>{1: 1, if (true) 2: 2, 3: 3});
-
-  // Nothing if false and no else.
-  Expect.mapEquals(map, <int, int>{1: 1, if (false) 9: 9, 2: 2, 3: 3});
-
-  // Else if false.
-  Expect.mapEquals(map, <int, int>{1: 1, if (false) 9: 9 else 2: 2, 3: 3});
-
-  // Only if.
-  Expect.mapEquals(<int, int>{1: 1}, <int, int>{if (true) 1: 1});
-
-  // If at beginning.
-  Expect.mapEquals(map, <int, int>{if (true) 1: 1, 2: 2, 3: 3});
-
-  // If in middle.
-  Expect.mapEquals(map, <int, int>{1: 1, if (true) 2: 2, 3: 3});
-
-  // If at end.
-  Expect.mapEquals(map, <int, int>{1: 1, 2: 2, if (true) 3: 3});
-
-  // Multiple ifs.
-  Expect.mapEquals(map,
-      <int, int>{if (true) 1: 1, if (false) 9: 9, 2: 2, if (true) 3: 3});
-
-  // Cast condition.
-  Expect.mapEquals(<int, int>{1: 1}, <int, int>{if (true as dynamic) 1: 1});
-  Expect.mapEquals(<int, int>{1: 1}, <int, int>{if (true as Object) 1: 1});
-
-  // Nested spread.
-  Expect.mapEquals(map, <int, int>{
-    if (true) ...<int, int>{1: 1, 2: 2},
-    if (false) 9: 9 else ...<int, int>{3: 3}
-  });
-
-  // Nested if in then.
-  Expect.mapEquals({1: 1},
-      <int, int>{if (true) if (true) 1: 1, if (true) if (false) 9: 9});
-
-  // Nested if in else.
-  Expect.mapEquals({1: 1},
-      <int, int>{if (false) 9: 9 else if (true) 1: 1});
-
-  // Nested for in then.
-  Expect.mapEquals(map, <int, int>{if (true) for (var i in list) i: i});
-
-  // Nested for in else.
-  Expect.mapEquals(map, <int, int>{if (false) 9: 9 else for (var i in list) i: i});
-}
-
-void testSet() {
-  // Then if true.
-  Expect.setEquals(set, <int>{1, if (true) 2, 3});
-
-  // Nothing if false and no else.
-  Expect.setEquals(set, <int>{1, if (false) 9, 2, 3});
-
-  // Else if false.
-  Expect.setEquals(set, <int>{1, if (false) 9 else 2, 3});
-
-  // Only if.
-  Expect.setEquals({1}, <int>{if (true) 1});
-
-  // If at beginning.
-  Expect.setEquals(set, <int>{if (true) 1, 2, 3});
-
-  // If in middle.
-  Expect.setEquals(set, <int>{1, if (true) 2, 3});
-
-  // If at end.
-  Expect.setEquals(set, <int>{1, 2, if (true) 3});
-
-  // Multiple ifs.
-  Expect.setEquals(set,
-      <int>{if (true) 1, if (false) 9, 2, if (true) 3});
-
-  // Cast condition.
-  Expect.setEquals({1}, <int>{if (true as dynamic) 1});
-  Expect.setEquals({1}, <int>{if (true as Object) 1});
-
-  // Does not flatten nested collection literal.
-  Expect.listEquals([1], {if (true) [1]}.first);
-  Expect.mapEquals({1: 1}, {if (true) {1: 1}}.first);
-  Expect.setEquals({1}, {if (true) {1}}.first);
-
-  // Nested spread.
-  Expect.setEquals(set,
-      <int>{if (true) ...<int>[1, 2], if (false) 9 else ...<int>[3]});
-
-  // Nested if in then.
-  Expect.setEquals({1}, <int>{if (true) if (true) 1, if (true) if (false) 9});
-
-  // Nested if in else.
-  Expect.setEquals({1}, <int>{if (false) 9 else if (true) 1});
-
-  // Nested for in then.
-  Expect.setEquals(set, <int>{if (true) for (var i in list) i});
-
-  // Nested for in else.
-  Expect.setEquals(set, <int>{if (false) 9 else for (var i in list) i});
-}
-
-void testShortCircuit() {
-  var transcript = <String>[];
-  T log<T>(T value) {
-    transcript.add(value.toString());
-    return value;
-  }
-
-  // With no else.
-  Expect.listEquals([1], [if (true) log(1), if (false) log(2)]);
-  Expect.equals("1", transcript.join(","));
-  transcript.clear();
-
-  // With else.
-  Expect.listEquals([1, 4],
-      [if (true) log(1) else log(2), if (false) log(3) else log(4)]);
-  Expect.equals("1,4", transcript.join(","));
-}
-
-void testDuplicateKeys() {
-  Expect.mapEquals(map, <int, int>{
-    1: 1,
-    if (true) 1: 1,
-    if (false) 9: 9 else 2: 2,
-    2: 2,
-    3: 3
-  });
-  Expect.setEquals(set, <int>{1, if (true) 1, if (false) 9 else 2, 2, 3});
-}
-
-void testKeyOrder() {
-  // First equal key wins.
-  var e1a = Equality(1, "a");
-  var e1b = Equality(1, "b");
-  var e2a = Equality(2, "a");
-  var e2b = Equality(2, "b");
-
-  var map = <Equality, int>{
-    e1a: 0,
-    if (true) e1b: 0,
-    if (true) e2a: 0,
-    if (true) e2b: 0
-  };
-  Expect.equals("1:a,2:a", map.keys.join(","));
-
-  var set = <Equality>{
-    e1a,
-    if (true) e1b,
-    if (true) e2a,
-    if (true) e2b
-  };
-  Expect.equals("1:a,2:a", set.join(","));
-}
diff --git a/tests/language_2/control_flow_collections/map_set_ambiguity_error_test.dart b/tests/language_2/control_flow_collections/map_set_ambiguity_error_test.dart
deleted file mode 100644
index dbf28ca3bc9..00000000000
--- a/tests/language_2/control_flow_collections/map_set_ambiguity_error_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test cases where the syntax is ambiguous between maps and sets when control
-// flow elements contain spreads.
-import 'dart:collection';
-
-import 'utils.dart';
-
-void main() {
-  Map<int, int> map = {};
-  Set<int> set = Set();
-  dynamic dyn = map;
-  Iterable<int> iterable = [];
-  CustomSet customSet = CustomSet();
-  CustomMap customMap = CustomMap();
-
-  var _ = {if (true) ...dyn}; //# 00: compile-time error
-  var _ = {if (true) ...map else ...set}; //# 01: compile-time error
-  var _ = {if (true) ...map else ...iterable}; //# 02: compile-time error
-  var _ = {if (true) ...map else ...customSet}; //# 03: compile-time error
-  var _ = {if (true) ...set else ...customMap}; //# 04: compile-time error
-  var _ = {if (true) ...dyn else ...dyn}; //# 05: compile-time error
-  var _ = {if (true) ...iterable else ...customMap}; //# 06: compile-time error
-  var _ = {if (true) ...customSet else ...customMap}; //# 07: compile-time error
-
-  var _ = {for (; false;) ...dyn}; //# 08: compile-time error
-  var _ = {for (; false;) ...map, ...set}; //# 09: compile-time error
-  var _ = {for (; false;) ...map, ...iterable}; //# 10: compile-time error
-  var _ = {for (; false;) ...map, ...customSet}; //# 11: compile-time error
-  var _ = {for (; false;) ...set, ...customMap}; //# 12: compile-time error
-  var _ = {for (; false;) ...dyn, ...dyn}; //# 13: compile-time error
-  var _ = {for (; false;) ...iterable, ...customMap}; //# 14: compile-time error
-  var _ = {for (; false;) ...customSet, ...customMap}; //# 15: compile-time error
-}
diff --git a/tests/language_2/control_flow_collections/map_set_ambiguity_test.dart b/tests/language_2/control_flow_collections/map_set_ambiguity_test.dart
deleted file mode 100644
index 93ad3b51ae9..00000000000
--- a/tests/language_2/control_flow_collections/map_set_ambiguity_test.dart
+++ /dev/null
@@ -1,130 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test cases where the syntax is ambiguous between maps and sets because of
-// spreads inside control flow.
-import 'dart:collection';
-
-import 'utils.dart';
-
-void main() {
-  testBottomUpInference();
-  testTopDownInference();
-}
-
-void testBottomUpInference() {
-  Map<int, int> map = {};
-  Set<int> set = Set();
-  dynamic dynMap = map;
-  dynamic dynSet = set;
-  Iterable<int> iterable = [];
-  CustomSet customSet = CustomSet();
-  CustomMap customMap = CustomMap();
-
-  // Note: The commented out cases are the error cases. They are shown here for
-  // completeness and tested in map_set_ambiguity_error_test.dart.
-  expectMapOf<int, int>({if (true) ...map});
-  expectSetOf<int>({if (true) ...set});
-  // expect___Of<...>({if (true) ...dyn});
-  expectSetOf<int>({if (true) ...iterable});
-  expectSetOf<int>({if (true) ...customSet});
-  expectMapOf<int, String>({if (true) ...customMap});
-
-  expectMapOf<int, int>({if (true) ...map else ...map});
-  // expect___Of<...>({if (true) ...map else ...set});
-  expectMapOf<dynamic, dynamic>({if (true) ...map else ...dynMap});
-  // expect___Of<...>({if (true) ...map else ...iterable});
-  // expect___Of<...>({if (true) ...map else ...customSet});
-  expectMapOf<int, Object>({if (true) ...map else ...customMap});
-
-  expectSetOf<int>({if (true) ...set else ...set});
-  expectSetOf<dynamic>({if (true) ...set else ...dynSet});
-  expectSetOf<int>({if (true) ...set else ...iterable});
-  expectSetOf<int>({if (true) ...set else ...customSet});
-  // expect___Of<...>({if (true) ...set else ...customMap});
-
-  // expect___Of<...>({if (true) ...dyn else ...dyn});
-  expectSetOf<dynamic>({if (true) ...dynSet else ...iterable});
-  expectSetOf<dynamic>({if (true) ...dynSet else ...customSet});
-  expectMapOf<dynamic, dynamic>({if (true) ...dynMap else ...customMap});
-
-  expectSetOf<int>({if (true) ...iterable else ...iterable});
-  expectSetOf<int>({if (true) ...iterable else ...customSet});
-  // expect___Of<...>({if (true) ...iterable else ...customMap});
-
-  expectSetOf<int>({if (true) ...customSet else ...customSet});
-  // expect___Of<...>({if (true) ...customSet else ...customMap});
-
-  expectMapOf<int, String>({if (true) ...customMap else ...customMap});
-
-  // Note: The commented out cases are the error cases. They are shown here for
-  // completeness and tested in map_set_ambiguity_error_test.dart.
-  expectMapOf<int, int>({for (; false;) ...map});
-  expectSetOf<int>({for (; false;) ...set});
-  // expect___Of<...>({for (; false;) ...dyn});
-  expectSetOf<int>({for (; false;) ...iterable});
-  expectSetOf<int>({for (; false;) ...customSet});
-  expectMapOf<int, String>({for (; false;) ...customMap});
-
-  expectMapOf<int, int>({for (; false;) ...map, for (; false;) ...map});
-  // expect___Of<...>({for (; false;) ...map, for (; false;) ...set});
-  expectMapOf<dynamic, dynamic>(
-      {for (; false;) ...map, for (; false;) ...dynMap});
-  // expect___Of<...>({for (; false;) ...map, for (; false;) ...iterable});
-  // expect___Of<...>({for (; false;) ...map, for (; false;) ...customSet});
-  expectMapOf<int, Object>(
-      {for (; false;) ...map, for (; false;) ...customMap});
-
-  expectSetOf<int>({for (; false;) ...set, for (; false;) ...set});
-  expectSetOf<dynamic>({for (; false;) ...set, for (; false;) ...dynSet});
-  expectSetOf<int>({for (; false;) ...set, for (; false;) ...iterable});
-  expectSetOf<int>({for (; false;) ...set, for (; false;) ...customSet});
-  // expect___Of<...>({for (; false;) ...set, for (; false;) ...customMap});
-
-  // expect___Of<...>({for (; false;) ...dyn, for (; false;) ...dyn});
-  expectSetOf<dynamic>(
-      {for (; false;) ...dynSet, for (; false;) ...iterable});
-  expectSetOf<dynamic>(
-      {for (; false;) ...dynSet, for (; false;) ...customSet});
-  expectMapOf<dynamic, dynamic>(
-      {for (; false;) ...dynMap, for (; false;) ...customMap});
-
-  expectSetOf<int>(
-      {for (; false;) ...iterable, for (; false;) ...iterable});
-  expectSetOf<int>(
-      {for (; false;) ...iterable, for (; false;) ...customSet});
-  // expect___Of<...>(
-  //     {for (; false;) ...iterable, for (; false;) ...customMap});
-
-  expectSetOf<int>(
-      {for (; false;) ...customSet, for (; false;) ...customSet});
-  // expect___Of<...>(
-  //     {for (; false;) ...customSet, for (; false;) ...customMap});
-
-  expectMapOf<int, String>(
-      {for (; false;) ...customMap, for (; false;) ...customMap});
-}
-
-void testTopDownInference() {
-  dynamic untypedMap = <int, int>{};
-  dynamic untypedIterable = <int>[];
-
-  Map<int, int> map = {if (true) ...untypedMap};
-  Set<int> set = {if (true) ...untypedIterable};
-  Iterable<int> iterable = {if (true) ...untypedIterable};
-
-  expectMapOf<int, int>(map);
-  expectSetOf<int>(set);
-  expectSetOf<int>(iterable);
-
-  map = {for (; false;) ...untypedMap};
-  set = {for (; false;) ...untypedIterable};
-  iterable = {for (; false;) ...untypedIterable};
-
-  expectMapOf<int, int>(map);
-  expectSetOf<int>(set);
-  expectSetOf<int>(iterable);
-}
diff --git a/tests/language_2/control_flow_collections/syntax_error_test.dart b/tests/language_2/control_flow_collections/syntax_error_test.dart
deleted file mode 100644
index 6402d212344..00000000000
--- a/tests/language_2/control_flow_collections/syntax_error_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-void main() {
-  // No then element.
-  var _ = [if (true)]; //# 00: syntax error
-
-  // No then element with else.
-  var _ = [if (true) else 0]; //# 01: syntax error
-
-  // No else element.
-  var _ = [if (true) 0 else]; //# 02: syntax error
-
-  // Spread if.
-  var _ = [...if (true) 0]; //# 03: syntax error
-
-  // Spread for.
-  var _ = [...for (; false;) 0]; //# 04: syntax error
-
-  // Use if in map entry.
-  var _ = {if (true) 1: 1: 2}; //# 05: syntax error
-  var _ = {1: if (true) 2: 2}; //# 06: syntax error
-
-  // Use for in map entry.
-  var _ = {for (; false;) 1: 1: 2}; //# 07: syntax error
-  var _ = {1: for (; false;) 2: 2}; //# 08: syntax error
-
-  // Use for variable out of scope.
-  var _ = [for (var i = 0; false;) 1, i]; //# 09: compile-time error
-
-  // Use for-in variable out of scope.
-  var _ = [for (var i in [1]; false;) 1, i]; //# 10: syntax error
-
-  // Use for variable in own initializer.
-  var _ = [for (var i = i; false;) 1]; //# 11: compile-time error
-
-  // Use for-in variable in own initializer.
-  var _ = [for (var i in [i]) 1]; //# 12: compile-time error
-}
diff --git a/tests/language_2/control_flow_collections/syntax_test.dart b/tests/language_2/control_flow_collections/syntax_test.dart
deleted file mode 100644
index 52f278e5a2a..00000000000
--- a/tests/language_2/control_flow_collections/syntax_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests syntax edge cases.
-import 'package:expect/expect.dart';
-
-void main() {
-  // Trailing comma after then.
-  Expect.listEquals([1], [if (true) 1,]);
-  Expect.mapEquals({1: 1}, {if (true) 1: 1,});
-  Expect.setEquals({1}, {if (true) 1,});
-
-  // Trailing comma after else.
-  Expect.listEquals([1], [if (true) 1 else 2,]);
-  Expect.mapEquals({1: 1}, {if (true) 1: 1 else 2: 2,});
-  Expect.setEquals({1}, {if (true) 1 else 2,});
-
-  // Trailing comma after for.
-  Expect.listEquals([1], [1, for (; false;) 2,]);
-  Expect.mapEquals({1: 1}, {1: 1, for (; false;) 2: 2,});
-  Expect.setEquals({1}, {1, for (; false;) 2,});
-
-  // Dangling else.
-  Expect.listEquals([1], [if (true) if (false) 0 else 1]);
-  Expect.listEquals([1], [if (true) if (false) 0 else 1 else 2]);
-  Expect.listEquals([2], [if (false) if (false) 0 else 1 else 2]);
-
-  // Precedence of then.
-  Expect.listEquals([1, 2, 3], [1, if (true) true ? 2 : 0, 3]);
-  var a = 0;
-  Expect.listEquals([1, 2, 3], [1, if (true) a = 2, 3]);
-
-  // Precedence of else.
-  Expect.listEquals([1, 2, 3], [1, if (false) 0 else true ? 2 : 0, 3]);
-  a = 0;
-  Expect.listEquals([1, 2, 3], [1, if (false) 0 else a = 2, 3]);
-
-  // Precedence of for.
-  Expect.listEquals([1, 2, 3],
-      [1, for (var i = 0; i < 1; i++) true ? 2 : 0, 3]);
-  a = 0;
-  Expect.listEquals([1, 2, 3], [1, for (var i = 0; i < 1; i++) a = 2, 3]);
-}
diff --git a/tests/language_2/control_flow_collections/type_error_test.dart b/tests/language_2/control_flow_collections/type_error_test.dart
deleted file mode 100644
index 10fead51762..00000000000
--- a/tests/language_2/control_flow_collections/type_error_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-void main() {
-  // Non-Boolean if condition.
-  var _ = <int>[if (1) 2]; //# 00: compile-time error
-  var _ = <int, int>{if (1) 2: 2}; //# 01: compile-time error
-  var _ = <int>{if (1) 2}; //# 02: compile-time error
-
-  // Wrong then element type.
-  var _ = <int>[if (true) "s"]; //# 04: compile-time error
-  var _ = <int, int>{if (true) "s": 1}; //# 05: compile-time error
-  var _ = <int, int>{if (true) 1: "s"}; //# 06: compile-time error
-  var _ = <int>{if (true) "s"}; //# 07: compile-time error
-
-  // Wrong else element type.
-  var _ = <int>[if (false) 1 else "s"]; //# 08: compile-time error
-  var _ = <int, int>{if (false) 1: 1 else "s": 2}; //# 09: compile-time error
-  var _ = <int, int>{if (false) 1: 1 else 2: "s"}; //# 10: compile-time error
-  var _ = <int>{if (false) 1 else "s"}; //# 11: compile-time error
-
-  // Non-Boolean for condition.
-  var _ = <int>[for (; 1;) 2]; //# 12: compile-time error
-  var _ = <int, int>{for (; 1;) 2: 2}; //# 13: compile-time error
-  var _ = <int>{for (; 1;) 2}; //# 14: compile-time error
-
-  // Wrong for-in element type.
-  List<String> s = ["s"];
-  var _ = <int>[for (int i in s) 1]; //# 15: compile-time error
-  var _ = <int, int>{for (int i in s) 1: 1}; //# 16: compile-time error
-  var _ = <int>{for (int i in s) 1}; //# 17: compile-time error
-
-  // Wrong for declaration element type.
-  var _ = <int>[for (int i = "s"; false;) 1]; //# 18: compile-time error
-  var _ = <int, int>{for (int i = "s"; false;) 1: 1}; //# 19: compile-time error
-  var _ = <int>{for (int i = "s"; false;) 1}; //# 20: compile-time error
-
-  // Wrong for body element type.
-  var _ = <int>[for (; false;) "s"]; //# 21: compile-time error
-  var _ = <int, int>{for (; false;) "s": 1}; //# 22: compile-time error
-  var _ = <int, int>{for (; false;) 1: "s"}; //# 23: compile-time error
-  var _ = <int>{for (; false;) "s"}; //# 24: compile-time error
-
-  // Non-iterable sequence type.
-  int nonIterable = 3;
-  var _ = <int>[for (int i in nonIterable) 1]; //# 25: compile-time error
-  var _ = <int, int>{for (int i in nonIterable) 1: 1}; //# 26: compile-time error
-  var _ = <int>{for (int i in nonIterable) 1}; //# 27: compile-time error
-}
diff --git a/tests/language_2/control_flow_collections/utils.dart b/tests/language_2/control_flow_collections/utils.dart
deleted file mode 100644
index 53e173dcc85..00000000000
--- a/tests/language_2/control_flow_collections/utils.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:collection';
-
-import 'package:expect/expect.dart';
-
-class CustomMap with MapMixin<int, String> {
-  Iterable<int> get keys => [];
-  String operator [](Object key) => "";
-  operator []=(int key, String value) {}
-  String remove(Object key) => throw UnsupportedError("unsupported");
-  void clear() => throw UnsupportedError("unsupported");
-}
-
-class CustomSet extends SetBase<int> {
-  bool add(int value) => throw UnsupportedError("unsupported");
-  bool contains(Object value) => throw UnsupportedError("unsupported");
-  Iterator<int> get iterator => <int>[].iterator;
-  int get length => 0;
-  int lookup(Object value) => throw UnsupportedError("unsupported");
-  bool remove(Object value) => throw UnsupportedError("unsupported");
-  Set<int> toSet() => this;
-}
-
-class Equality {
-  final int id;
-  final String name;
-  const Equality(this.id, this.name);
-  int get hashCode => id;
-  bool operator ==(Object other) => other is Equality && id == other.id;
-  String toString() => "$id:$name";
-}
-
-T expectDynamic<T>(dynamic value) {
-  Expect.equals(dynamic, T);
-  return value;
-}
-
-T expectInt<T>(dynamic value) {
-  Expect.equals(int, T);
-  return value;
-}
-
-T expectString<T>(dynamic value) {
-  Expect.equals(String, T);
-  return value;
-}
-
-Iterable<T> expectIntIterable<T>(dynamic value) {
-  Expect.equals(int, T);
-  return value;
-}
-
-Set<T> expectIntSet<T>() {
-  Expect.equals(int, T);
-  return Set();
-}
-
-Stream<T> expectIntStream<T>(dynamic elements) {
-  Expect.equals(int, T);
-  return Stream<T>.fromIterable(elements);
-}
-
-Set<T> expectDynamicSet<T>() {
-  Expect.equals(dynamic, T);
-  return Set();
-}
-
-/// Hacky way of testing the inferred generic type arguments of [object].
-///
-/// [Expect.type()] only performs a subtype test, which means that it will
-/// return `true` when asked if a `List<int>` is a `List<num>` or
-/// `List<dynamic>`. For inference, we want to test the type more precisely.
-///
-/// There isn't a good way to do that in tests yet so, for now, we just see if
-/// the runtime type contains the given type argument string.
-// TODO(rnystrom): Do something less horribly brittle.
-void _expectTypeArguments(String typeArguments, Object object) {
-  var typeName = object.runtimeType.toString();
-
-  // If an implementation prints dynamic instantiations like a raw type,
-  // handle that.
-  if (!typeName.contains("<") &&
-      (typeArguments == "dynamic" || typeArguments == "dynamic, dynamic")) {
-    return;
-  }
-
-  if (!typeName.contains("<$typeArguments>")) {
-    Expect.fail("Object should have had generic type '<$typeArguments>', "
-        "but was '$typeName'.");
-  }
-}
-
-void expectListOf<T>(Object object) {
-  Expect.type<List>(object);
-  _expectTypeArguments(T.toString(), object);
-}
-
-void expectSetOf<T>(Object object) {
-  Expect.type<Set>(object);
-  _expectTypeArguments(T.toString(), object);
-}
-
-void expectMapOf<K, V>(Object object) {
-  Expect.type<Map>(object);
-  _expectTypeArguments("$K, $V", object);
-}
diff --git a/tests/language_2/covariant/callable_class_field_getter_test.dart b/tests/language_2/covariant/callable_class_field_getter_test.dart
deleted file mode 100644
index 287ff8053ec..00000000000
--- a/tests/language_2/covariant/callable_class_field_getter_test.dart
+++ /dev/null
@@ -1,128 +0,0 @@
-// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that the appropriate runtime checks occur when a generic class has a
-// field (or getter) whose type is a callable class, and that type makes
-// contravariant use of the generic class's type parameter.
-
-import 'package:expect/expect.dart';
-
-// The callable class. Contains machinery to verify that it is called only when
-// expected.
-class Callable<U> {
-  static int _callCount = 0;
-  dynamic call() {
-    ++_callCount;
-    return this;
-  }
-
-  static void checkCallCount(int expected) {
-    Expect.equals(expected, _callCount);
-    _callCount = 0;
-  }
-}
-
-// A generic class containing fields whose type is a callable class.
-class Fields<T> {
-  final Callable<void Function()> noUse = Callable<void Function()>();
-  final Callable<T Function()> covariantUse = Callable<T Function()>();
-  final Callable<void Function(T)> contravariantUse =
-      Callable<void Function(T)>();
-  final Callable<T Function(T)> invariantUse = Callable<T Function(T)>();
-}
-
-// A generic class containing getters whose type is a callable class.
-class Getters<T> {
-  final Fields<T> _fields = Fields<T>();
-
-  Callable<void Function()> get noUse => _fields.noUse;
-  Callable<T Function()> get covariantUse => _fields.covariantUse;
-  Callable<void Function(T)> get contravariantUse => _fields.contravariantUse;
-  Callable<T Function(T)> get invariantUse => _fields.invariantUse;
-}
-
-void testFields(Fields<num> fields, {bool expectException}) {
-  // Make a copy of the `fields` parameter with type `dynamic`, so that we can
-  // access its fields without triggering runtime covariance checks; we'll use
-  // this to determine the values that are expected to be returned by
-  // `Callable.call`.
-  dynamic d = fields;
-
-  // `fields.noUse` doesn't use the type parameter `T`, so no runtime check is
-  // needed to preserve soundness.
-  Expect.identical(d.noUse, fields.noUse());
-  Callable.checkCallCount(1);
-
-  // `fields.covariantUse` uses the type parameter `T` covariantly, so no
-  // runtime check is needed to preserve soundness.
-  Expect.identical(d.covariantUse, fields.covariantUse());
-  Callable.checkCallCount(1);
-
-  // `fields.contravariantUse` uses the type parameter `T` contravariantly, so a
-  // runtime check is needed to preserve soundness.
-  if (expectException) {
-    Expect.throws(() => fields.contravariantUse());
-    Callable.checkCallCount(0);
-  } else {
-    Expect.identical(d.contravariantUse, fields.contravariantUse());
-    Callable.checkCallCount(1);
-  }
-
-  // `fields.invariantUse` uses the type parameter `T` both covariantly and
-  // contravariantly, so a runtime check is needed to preserve soundness.
-  if (expectException) {
-    Expect.throws(() => fields.invariantUse());
-    Callable.checkCallCount(0);
-  } else {
-    Expect.identical(d.invariantUse, fields.invariantUse());
-    Callable.checkCallCount(1);
-  }
-}
-
-void testGetters(Getters<num> getters, {bool expectException}) {
-  // Make a copy of the `getters` parameter with type `dynamic`, so that we can
-  // access its getters without triggering runtime covariance checks; we'll use
-  // this to determine the values that are expected to be returned by
-  // `Callable.call`.
-  dynamic d = getters;
-
-  // `getters.noUse` doesn't use the type parameter `T`, so no runtime check is
-  // needed to preserve soundness.
-  Expect.identical(d.noUse, getters.noUse());
-  Callable.checkCallCount(1);
-
-  // `getters.covariantUse` uses the type parameter `T` covariantly, so no
-  // runtime check is needed to preserve soundness.
-  Expect.identical(d.covariantUse, getters.covariantUse());
-  Callable.checkCallCount(1);
-
-  // `getters.contravariantUse` uses the type parameter `T` contravariantly, so
-  // a runtime check is needed to preserve soundness.
-  if (expectException) {
-    Expect.throws(() => getters.contravariantUse());
-    Callable.checkCallCount(0);
-  } else {
-    Expect.identical(d.contravariantUse, getters.contravariantUse());
-    Callable.checkCallCount(1);
-  }
-
-  // `getters.invariantUse` uses the type parameter `T` both covariantly and
-  // contravariantly, so a runtime check is needed to preserve soundness.
-  if (expectException) {
-    Expect.throws(() => getters.invariantUse());
-    Callable.checkCallCount(0);
-  } else {
-    Expect.identical(d.invariantUse, getters.invariantUse());
-    Callable.checkCallCount(1);
-  }
-}
-
-main() {
-  testFields(Fields<num>(), expectException: false);
-  testFields(Fields<int>(), expectException: true);
-  testGetters(Getters<num>(), expectException: false);
-  testGetters(Getters<int>(), expectException: true);
-}
diff --git a/tests/language_2/covariant/covariant_test.dart b/tests/language_2/covariant/covariant_test.dart
deleted file mode 100644
index b5a438a9b35..00000000000
--- a/tests/language_2/covariant/covariant_test.dart
+++ /dev/null
@@ -1,433 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that `covariant` can be parsed (and ignored) by
-// dart2js and the VM.
-// This test only checks for non-strong mode behavior.
-//
-// Generally, `covariant` should be ignored, when it is used in the right
-// places.
-
-import 'package:expect/expect.dart';
-
-// Top level field may not have a covariant.
-// Would be considered a minor (acceptable) bug, if it was accepted here too.
-covariant // //# 00: syntax error
-int x0;
-
-covariant int covariant; // //# 00b: syntax error
-
-int covariant; // //# 00c: ok
-
-// Getters may never have `covariant`. (Neither on the top-level nor as members)
-covariant // //# 01: syntax error
-int get x1 => 499;
-
-// Top level setters may not have a covariant.
-// Would be considered a minor (acceptable) bug, if it was accepted here too.
-void set x2(
-    covariant //# 02: compile-time error
-    int val) {}
-
-// Same as above, but with `covariant` in different positions.
-// The `covariant` is just wrong there.
-
-int
-covariant // //# 03: syntax error
-    x3;
-
-int
-covariant // //# 04: syntax error
-    get x4 => 499;
-
-void set x5(
-    int
-    covariant //# 05: syntax error
-        val) {}
-
-// Same without types.
-
-// Since `covariant` is a built-in identifier, it is not allowed here.
-covariant x6; // //# 06: syntax error
-
-covariant covariant; // //# 06b: syntax error
-
-// Getters may never have `covariant`.
-covariant // //# 07: syntax error
-get x7 => 499;
-
-// Top level setters may not have a covariant.
-// Would be considered a minor (acceptable) bug, if it was accepted here too.
-void set x8(
-    covariant //# 08: compile-time error
-    val) {}
-
-// If there is no type, then `covariant` is simply the parameter name:
-void set x9(covariant) {}
-
-// Covariant won't work on return types.
-covariant // //# 10: syntax error
-int f10() => 499;
-
-// Covariant won't work as a return type.
-covariant // //# 11: syntax error
-f11() => 499;
-
-// Covariant should not work on top-level methods.
-// It's a minor (acceptable) bug to not error out here.
-int f12(
-    covariant //# 12: compile-time error
-        int x) =>
-    499;
-
-// `Covariant` must be in front of the types.
-int f13(
-        int
-    covariant //# 13: syntax error
-            x) =>
-    499;
-
-// Covariant should not work on top-level methods.
-// It's a minor (acceptable) bug to not error out here.
-int f14(
-    covariant //# 14: compile-time error
-        final x) =>
-    499;
-
-// `Covariant` must be in front of modifiers.
-int f15(
-        final
-    covariant //# 15: syntax error
-            x) =>
-    499;
-
-// Covariant should not work on top-level methods.
-// It's a minor (acceptable) bug to not error out here.
-int f16(
-    covariant //# 16: compile-time error
-        final int x) =>
-    499;
-
-// `Covariant` must be in front of modifiers.
-int f17(
-        final
-    covariant //# 17: syntax error
-            int
-            x) =>
-    499;
-
-// On its own, `covariant` is just a parameter name.
-int f18(covariant) => covariant;
-
-covariant; // //# 19: syntax error
-
-// All of the above as statics in a class.
-class A {
-  // Static fields may not have a covariant.
-  // Would be considered a minor (acceptable) bug, if it was accepted here too.
-  static
-  covariant // //# 20: syntax error
-      int x20;
-
-  static covariant int covariant; // //# 20b: syntax error
-
-  static int covariant; // //# 20c: ok
-
-  // Getters may never have `covariant`.
-  static
-  covariant // //# 21: syntax error
-      int get x21 => 499;
-
-  // Getters may never have `covariant`.
-  covariant // //# 21b: syntax error
-  static int get x21b => 499;
-
-  // Static setters may not have a covariant.
-  // Would be considered a minor (acceptable) bug, if it was accepted here too.
-  static void set x22(
-      covariant //# 22: compile-time error
-      int val) {}
-
-  // Same as above, but with `covariant` in different positions.
-  // The `covariant` is just wrong there.
-
-  static int
-  covariant // //# 23: syntax error
-      x23;
-
-  static int
-  covariant // //# 24: syntax error
-      get x24 => 499;
-
-  static void set x25(
-      int
-    covariant //# 25: syntax error
-          val) {}
-
-  // Since `covariant` is a built-in identifier, it is not allowed here.
-  static covariant x26; //# 26: syntax error
-  static covariant covariant; //# 26b: syntax error
-
-  // Getters may never have `covariant`.
-  static
-  covariant // //# 27: syntax error
-      get x27 => 499;
-
-  covariant // //# 27b: syntax error
-  static get x27b => 499;
-
-  // Static setters may not have a covariant.
-  // Would be considered a minor (acceptable) bug, if it was accepted here too.
-  static void set x28(
-      covariant //# 28: compile-time error
-      val) {}
-
-  // If there is no type, then `covariant` is simply the parameter name:
-  static void set x29(covariant) {}
-
-  // Covariant won't work on return types.
-  static
-  covariant // //# 30: syntax error
-      int f30() => 499;
-
-  covariant // //# 30b: syntax error
-  static int f30b() => 499;
-
-  // Covariant won't work as a return type.
-  static
-  covariant // //# 31: syntax error
-      f31() => 499;
-
-  covariant // //# 31b: syntax error
-  static f31b() => 499;
-
-  // Covariant should not work on static methods.
-  // It's a minor (acceptable) bug to not error out here.
-  static int f32(
-      covariant //# 32: compile-time error
-          int x) =>
-      499;
-
-  // `Covariant` must be in front of the types.
-  static int f33(
-          int
-      covariant //# 33: syntax error
-              x) =>
-      499;
-
-  // Covariant should not work on top-level methods.
-  // It's a minor (acceptable) bug to not error out here.
-  static int f34(
-      covariant //# 34: compile-time error
-          final x) =>
-      499;
-
-  // `Covariant` must be in front of modifiers.
-  static int f35(
-          final
-      covariant //# 35: syntax error
-              x) =>
-      499;
-
-  // Covariant should not work on top-level methods.
-  // It's a minor (acceptable) bug to not error out here.
-  static int f36(
-      covariant //# 36: compile-time error
-          final int x) =>
-      499;
-
-  // `Covariant` must be in front of modifiers.
-  static int f37(
-          final
-      covariant //# 37: syntax error
-              int
-              x) =>
-      499;
-
-  // `Covariant` on its own is just a parameter name.
-  static int f38(covariant) => covariant;
-
-  static covariant; // //# 39: syntax error
-
-}
-
-// All of the above as instance members in a class.
-class B {
-  covariant // //# 40: ok
-  int x40;
-
-  covariant int covariant; // //# 40b: ok
-
-  int covariant; //           //# 40c: ok
-
-  // Getters may never have `covariant`.
-  covariant // //# 41: syntax error
-  int get x41 => 499;
-
-  void set x42(
-      covariant // //# 42: ok
-      int val) {}
-
-  // `covariant` in the wrong position.
-  int
-  covariant // //# 43: syntax error
-      x43;
-
-  // `covariant` in the wrong position.
-  int
-  covariant // //# 44: syntax error
-      get x44 => 499;
-
-  void set x45(
-      int
-    covariant //# 45: syntax error
-          val) {}
-
-  // Since `covariant` is a built-in identifier, it is not allowed here.
-  covariant x46; //# 46: syntax error
-  covariant covariant; //# 46b: syntax error
-
-  // Getters may never have `covariant`.
-  covariant // //# 47: syntax error
-  get x47 => 499;
-
-  void set x48(
-      covariant // //# 48: ok
-      val) {}
-
-  // If there is no type, then `covariant` is simply the parameter name:
-  void set x49(covariant) {}
-
-  // Covariant won't work on return types.
-  covariant // //# 50: syntax error
-  int f50() => 499;
-
-  // Covariant won't work as a return type.
-  covariant // //# 51: syntax error
-  f51() => 499;
-
-  int f52(
-      covariant // //# 52: ok
-          int x) =>
-      499;
-
-  // `Covariant` must be in front of the types.
-  int f53(
-          int
-      covariant //# 53: syntax error
-              x) =>
-      499;
-
-  int f54(
-      covariant // //# 54: ok
-          final x) =>
-      499;
-
-  // `Covariant` must be in front of modifiers.
-  int f55(
-          final
-      covariant //# 55: syntax error
-              x) =>
-      499;
-
-  int f56(
-      covariant // //# 56: ok
-          final int x) =>
-      499;
-
-  // `Covariant` must be in front of modifiers.
-  int f57(
-          final
-      covariant //# 57: syntax error
-              int
-              x) =>
-      499;
-
-  // `Covariant` on its own is just a parameter name.
-  int f58(covariant) => covariant;
-
-  covariant; // //# 59: syntax error
-}
-
-void use(x) {}
-
-main() {
-  x0 = 0;
-  covariant = 0; // //# 00b: continued
-  covariant = 0; // //# 00c: continued
-  use(x1);
-  x2 = 499;
-  use(x3);
-  use(x4);
-  x5 = 42;
-  x6 = 0; //# 06: continued
-  covariant = 0; //# 06b: continued
-  use(x7);
-  x8 = 11;
-  x9 = 12;
-  use(f10());
-  use(f11());
-  use(f12(2));
-  use(f13(3));
-  use(f14(3));
-  use(f15(3));
-  use(f16(3));
-  use(f17(3));
-  Expect.equals(123, f18(123));
-  use(covariant); // //# 19: continued
-
-  A.x20 = 0;
-  A.covariant = 0; // //# 20b: continued
-  A.covariant = 0; // //# 20c: continued
-  use(A.x21);
-  use(A.x21b);
-  A.x22 = 499;
-  use(A.x23);
-  use(A.x24);
-  A.x25 = 42;
-  A.x26 = 0; //# 26: continued
-  A.covariant = 0; //# 26b: continued
-  use(A.x27);
-  use(A.x27b);
-  A.x28 = 11;
-  A.x29 = 12;
-  use(A.f30());
-  use(A.f31());
-  use(A.f31b());
-  use(A.f32(2));
-  use(A.f33(3));
-  use(A.f34(3));
-  use(A.f35(3));
-  use(A.f36(3));
-  use(A.f37(3));
-  Expect.equals(1234, A.f38(1234));
-  use(A.covariant); // //# 39: continued
-
-  var b = new B();
-  b.x40 = 0;
-  b.covariant = 0; // //# 40b: continued
-  b.covariant = 0; // //# 40c: continued
-  use(b.x41);
-  b.x42 = 499;
-  use(b.x43);
-  use(b.x44);
-  b.x45 = 42;
-  b.x46 = 0; //# 46: continued
-  b.covariant = 0; //# 46b: continued
-  use(b.x47);
-  b.x48 = 11;
-  b.x49 = 12;
-  use(b.f50());
-  use(b.f51());
-  use(b.f52(2));
-  use(b.f53(2));
-  use(b.f54(3));
-  use(b.f55(3));
-  use(b.f56(3));
-  use(b.f57(3));
-  Expect.equals(12345, b.f58(12345));
-  use(B.covariant); // //# 59: continued
-}
diff --git a/tests/language_2/covariant/field_test.dart b/tests/language_2/covariant/field_test.dart
deleted file mode 100644
index d532d0b7cdb..00000000000
--- a/tests/language_2/covariant/field_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-abstract class B<T> {
-  // x will be marked genericCovariantInterface, since x's type is covariant in
-  // the type parameter T.
-  void set s2(T x);
-
-  // x will be marked genericCovariantInterface, since x's type is covariant in
-  // the type parameter T.
-  void set s3(T x);
-
-  void set s4(Object x);
-
-  void set s5(Object x) {
-    s4 = x;
-  }
-}
-
-class C extends B<A> {
-  A s1;
-
-  // s2 will be marked genericCovariantImpl, since it might be called via
-  // e.g. B<Object>.
-  A s2;
-
-  // s3 will be marked genericCovariantImpl, since it might be called via
-  // e.g. B<Object>.
-  covariant A s3;
-
-  covariant A s4;
-}
-
-main() {
-  // Dynamic method calls should always have their arguments type checked.
-  dynamic d = new C();
-  Expect.throwsTypeError(() => d.s1 = new Object()); //# 01: ok
-
-  // Interface calls should have any arguments marked "genericCovariantImpl"
-  // type checked provided that the corresponding argument on the interface
-  // target is marked "genericCovariantInterface".
-  B<Object> b = new C();
-  Expect.throwsTypeError(() => b.s2 = new Object()); //# 02: ok
-
-  // Interface calls should have any arguments marked "covariant" type checked,
-  // regardless of whether the corresponding argument on the interface target is
-  // marked "genericCovariantInterface".
-  Expect.throwsTypeError(() => b.s3 = new Object()); //# 03: ok
-  Expect.throwsTypeError(() => b.s4 = new Object()); //# 04: ok
-
-  // This calls should have any arguments marked "covariant" type checked.
-  Expect.throwsTypeError(() => b.s5 = new Object()); //# 05: ok
-}
diff --git a/tests/language_2/covariant/method_test.dart b/tests/language_2/covariant/method_test.dart
deleted file mode 100644
index da47e0c1859..00000000000
--- a/tests/language_2/covariant/method_test.dart
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-abstract class B<T> {
-  // x will be marked genericCovariantInterface, since x's type is covariant in
-  // the type parameter T.
-  void f2(T x);
-
-  // x will be marked genericCovariantInterface, since x's type is covariant in
-  // the type parameter T.
-  void f3(T x);
-
-  void f4(Object x);
-
-  void f5(Object x) {
-    f4(x);
-  }
-}
-
-class C extends B<A> {
-  void f1(A x) {}
-
-  // x will be marked genericCovariantImpl, since it might be called via
-  // e.g. B<Object>.
-  void f2(A x) {}
-
-  // x will be marked genericCovariantImpl, since it might be called via
-  // e.g. B<Object>.
-  void f3(covariant A x) {}
-
-  void f4(covariant A x) {}
-}
-
-main() {
-  // Dynamic method calls should always have their arguments type checked.
-  dynamic d = new C();
-  Expect.throwsTypeError(() => d.f1(new Object())); //# 01: ok
-
-  // Closure calls should have any arguments marked "genericCovariantImpl" type
-  // checked.
-  B<Object> b = new C();
-  void Function(Object) f = b.f2;
-  Expect.throwsTypeError(() => f(new Object())); //# 02: ok
-
-  // Interface calls should have any arguments marked "genericCovariantImpl"
-  // type checked provided that the corresponding argument on the interface
-  // target is marked "genericCovariantInterface".
-  Expect.throwsTypeError(() => b.f2(new Object())); //# 03: ok
-
-  // Interface calls should have any arguments marked "covariant" type checked,
-  // regardless of whether the corresponding argument on the interface target is
-  // marked "genericCovariantInterface".
-  Expect.throwsTypeError(() => b.f3(new Object())); //# 04: ok
-  Expect.throwsTypeError(() => b.f4(new Object())); //# 05: ok
-
-  // This calls should have any arguments marked "covariant" type checked.
-  Expect.throwsTypeError(() => b.f5(new Object())); //# 06: ok
-}
diff --git a/tests/language_2/covariant/override_test.dart b/tests/language_2/covariant/override_test.dart
deleted file mode 100644
index c30cd2e535a..00000000000
--- a/tests/language_2/covariant/override_test.dart
+++ /dev/null
@@ -1,93 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library covariant_override_test;
-
-// This test contains cases where `covariant` is used as intended.
-
-abstract class A {
-  A(this.f1, this.f2, this.f3);
-
-  // Normal usage, "by design": superclass requests covariance.
-  void m1(covariant Object o);
-
-  // Normal usage, "ad hoc": subclass requests covariance.
-  void m2(Object o);
-
-  // Syntactic special case: omit the type in subclass.
-  void m3(Object o);
-
-  // Positional optional arguments.
-  void m4([covariant Object o]);
-  void m5([Object o]);
-  void m6([Object o]);
-
-  // Named arguments.
-  void m7({covariant Object arg});
-  void m8({Object arg});
-  void m9({Object arg});
-
-  // Normal usage on field, "by design": superclass requests covariance.
-  covariant Object f1;
-
-  // Normal usage on field, "ad hoc": subclass requests covariance.
-  Object f2;
-
-  // Syntactic special case.
-  Object f3;
-}
-
-abstract class B extends A {
-  B(num f1, num f2, num f3) : super(f1, f2, f3);
-
-  void m1(num n);
-  void m2(covariant num n);
-  void m3(covariant n);
-  void m4([num n]);
-  void m5([covariant num n]);
-  void m6([covariant n]);
-  void m7({num arg});
-  void m8({covariant num arg});
-  void m9({covariant arg});
-  void set f1(num n);
-  void set f2(covariant num n);
-  void set f3(covariant n);
-}
-
-class C extends B {
-  C(int f1, int f2, int f3) : super(f1, f2, f3);
-
-  void m1(int i) {}
-  void m2(int i) {}
-  void m3(int i) {}
-  void m4([int i]) {}
-  void m5([int i]) {}
-  void m6([int i]) {}
-  void m7({int arg}) {}
-  void m8({int arg}) {}
-  void m9({int arg}) {}
-  void set f1(covariant int i) {}
-  void set f2(covariant int i) {}
-  void set f3(int i) {}
-}
-
-main() {
-  // For Dart 1.x, `covariant` has no runtime semantics; we just ensure
-  // that the code is not unused, such that we know it will be parsed.
-  A a = new C(39, 40, 41);
-  a.m1(42);
-  a.m2(42);
-  a.m3(42);
-  a.m4(42);
-  a.m5(42);
-  a.m6(42);
-  a.m7(arg: 42);
-  a.m8(arg: 42);
-  a.m9(arg: 42);
-  a.f1 = 42;
-  a.f2 = 42;
-  a.f3 = 42;
-}
diff --git a/tests/language_2/covariant/return_type_test.dart b/tests/language_2/covariant/return_type_test.dart
deleted file mode 100644
index 599b065ac89..00000000000
--- a/tests/language_2/covariant/return_type_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-void main() {
-  Expect.throwsTypeError(() {
-    List<int> l = [1, 2, 3].where((x) => x.isEven).map((x) => x + 1);
-  }, 'Iterable<int> should fail implicit cast to List<int>');
-
-  Iterable<int> l = [1, 2, 3].where((x) => x.isEven).map((x) => x + 1);
-  Expect.isFalse(l is List<int>, 'Iterable<int> is not a subtype of List<int>');
-
-  C<Object> c = C<Object>(1);
-  Iterable<bool Function(Object)> myList = c.f(); // works
-
-  Expect.throwsTypeError(() {
-    C<Object> c = C<Object>(1);
-    List<bool Function(Object)> myList = c.f();
-  }, "f() returns an Iterable, not a List");
-
-  Expect.throwsTypeError(() {
-    C<Object> c = C<int>(1);
-    List<bool Function(Object)> myList = c.f();
-  }, "f() returns an Iterable, not a List");
-
-  Expect.throwsTypeError(() {
-    C<Object> c = C<int>(1);
-    Iterable<bool Function(Object)> myList = c.f();
-  }, "f() returns functions accepting int, not Object");
-
-  {
-    C<Iterable<Object>> c = D<Object>([1]);
-    Iterable<bool Function(Iterable<Object>)> myList = c.f();
-  }
-
-  Expect.throwsTypeError(() {
-    C<Iterable<Object>> c = D<Object>([1]);
-    List<bool Function(Iterable<Object>)> myList = c.f();
-  }, "D.f() returns an Iterable, not a List");
-
-  Expect.throwsTypeError(() {
-    C<Iterable<Object>> c = D<int>([1]);
-    Iterable<bool Function(Iterable<Object>)> myList = c.f();
-  }, "D.f() returns functions accepting Iterable<int>, not Iterable<Object>");
-}
-
-class C<T> {
-  final T t;
-  C(this.t);
-  Iterable<bool Function(T)> f() sync* {
-    yield (T x) => x == t;
-  }
-}
-
-class D<S> extends C<Iterable<S>> {
-  D(Iterable<S> s) : super(s);
-}
diff --git a/tests/language_2/covariant/setter_test.dart b/tests/language_2/covariant/setter_test.dart
deleted file mode 100644
index c5fe6281540..00000000000
--- a/tests/language_2/covariant/setter_test.dart
+++ /dev/null
@@ -1,92 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-abstract class B<T> {
-  // x will be marked genericCovariantInterface, since x's type is covariant in
-  // the type parameter T.
-  void set s2(T x);
-
-  // x will be marked genericCovariantInterface, since x's type is covariant in
-  // the type parameter T.
-  void set s3(T x);
-
-  void set s4(Object x);
-
-  void set s5(Object x) {
-    s4 = x;
-  }
-}
-
-class C extends B<A> {
-  void set s1(A x) {}
-
-  // x will be marked genericCovariantImpl, since it might be called via
-  // e.g. B<Object>.
-  void set s2(A x) {}
-
-  // x will be marked genericCovariantImpl, since it might be called via
-  // e.g. B<Object>.
-  void set s3(covariant A x) {}
-
-  void set s4(covariant A x) {}
-}
-
-main() {
-  // Dynamic method calls should always have their arguments type checked.
-  dynamic d = new C();
-  Expect.throwsTypeError(() => d.s1 = new Object()); //# 01: ok
-
-  // Interface calls should have any arguments marked "genericCovariantImpl"
-  // type checked provided that the corresponding argument on the interface
-  // target is marked "genericCovariantInterface".
-  B<Object> b = new C();
-  Expect.throwsTypeError(() => b.s2 = new Object()); //# 02: ok
-
-  // Interface calls should have any arguments marked "covariant" type checked,
-  // regardless of whether the corresponding argument on the interface target is
-  // marked "genericCovariantInterface".
-  Expect.throwsTypeError(() => b.s3 = new Object()); //# 03: ok
-  Expect.throwsTypeError(() => b.s4 = new Object()); //# 04: ok
-
-  // This calls should have any arguments marked "covariant" type checked.
-  Expect.throwsTypeError(() => b.s5 = new Object()); //# 05: ok
-
-  testMixin(); //# 06: ok
-}
-
-abstract class D<T> {
-  void set m1(T x);
-}
-
-class E {
-  void set m1(A x) {}
-}
-
-class F = Object with E implements D<A>;
-class G = C with E implements D<A>;
-
-class H extends Object with E implements D<A> {}
-
-class I extends Object with F {}
-
-void testMixin() {
-  D<Object> f = new F();
-  f.m1 = new A();
-  Expect.throwsTypeError(() => f.m1 = new Object());
-  f = new G();
-  f.m1 = new A();
-  Expect.throwsTypeError(() => f.m1 = new Object());
-  f = new H();
-  f.m1 = new A();
-  Expect.throwsTypeError(() => f.m1 = new Object());
-  f = new I();
-  f.m1 = new A();
-  Expect.throwsTypeError(() => f.m1 = new Object());
-}
diff --git a/tests/language_2/covariant/subtyping_tearoff1_test.dart b/tests/language_2/covariant/subtyping_tearoff1_test.dart
deleted file mode 100644
index 24d5e9f2acd..00000000000
--- a/tests/language_2/covariant/subtyping_tearoff1_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-import 'package:expect/expect.dart';
-
-class Foo<T> {
-  dynamic method(T x) {}
-}
-
-typedef dynamic TakeNum(num x);
-
-main() {
-  Foo<int> intFoo = new Foo<int>();
-  Foo<num> numFoo = intFoo;
-  TakeNum f = numFoo.method;
-  Expect.throws(() => f(2.5));
-  dynamic f2 = numFoo.method;
-  Expect.throws(() => f2(2.5));
-}
diff --git a/tests/language_2/covariant/subtyping_tearoff2_test.dart b/tests/language_2/covariant/subtyping_tearoff2_test.dart
deleted file mode 100644
index 3d263ba9136..00000000000
--- a/tests/language_2/covariant/subtyping_tearoff2_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-import 'package:expect/expect.dart';
-
-class Implementation {
-  dynamic method(int x) {}
-}
-
-abstract class Interface<T> {
-  dynamic method(T x);
-}
-
-class Subclass extends Implementation implements Interface<int> {}
-
-typedef dynamic TakeNum(num x);
-
-main() {
-  Subclass subclass = new Subclass();
-  Interface<int> intInterface = subclass;
-  Interface<num> numInterface = intInterface;
-  TakeNum f = numInterface.method;
-  Expect.throws(() => f(2.5));
-  dynamic f2 = f;
-  Expect.throws(() => f2(2.5));
-}
diff --git a/tests/language_2/covariant/subtyping_tearoff3_test.dart b/tests/language_2/covariant/subtyping_tearoff3_test.dart
deleted file mode 100644
index 5194b4e4674..00000000000
--- a/tests/language_2/covariant/subtyping_tearoff3_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-import 'package:expect/expect.dart';
-
-class Implementation {
-  dynamic method(int x) {}
-}
-
-abstract class Interface1<T> {
-  dynamic method(T x);
-}
-
-abstract class Interface2<T> {
-  dynamic method(T x);
-}
-
-class Subclass extends Implementation
-    implements Interface1<int>, Interface2<int> {}
-
-typedef dynamic TakeNum(num x);
-
-main() {
-  Subclass subclass = new Subclass();
-
-  Interface1<int> intInterface1 = subclass;
-  Interface1<num> numInterface1 = intInterface1;
-  TakeNum f1 = numInterface1.method;
-  Expect.throws(() => f1(2.5));
-  dynamic f1dynamic = f1;
-  Expect.throws(() => f1dynamic(2.5));
-
-  Interface2<int> intInterface2 = subclass;
-  Interface2<num> numInterface2 = intInterface2;
-  TakeNum f2 = numInterface2.method;
-  Expect.throws(() => f2(2.5));
-  dynamic f2dynamic = f2;
-  Expect.throws(() => f2dynamic(2.5));
-}
diff --git a/tests/language_2/covariant/subtyping_test.dart b/tests/language_2/covariant/subtyping_test.dart
deleted file mode 100644
index 768850c55ab..00000000000
--- a/tests/language_2/covariant/subtyping_test.dart
+++ /dev/null
@@ -1,255 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-import 'package:expect/expect.dart';
-
-class Fields<T> {
-  T x;
-  T _y;
-  T _z;
-
-  m() {
-    _y = x;
-  }
-
-  n(Fields<T> c) {
-    c._z = x;
-  }
-}
-
-testField() {
-  Fields<Object> c = new Fields<int>();
-  Expect.throwsTypeError(() => c.x = 'hello');
-
-  Fields<dynamic> d = new Fields<int>();
-  Expect.throwsTypeError(() => c.x = 'hello');
-}
-
-testPrivateFields() {
-  Fields<Object> c = new Fields<int>()..x = 42;
-  c.m();
-  Expect.equals(c._y, 42);
-
-  Fields<Object> c2 = new Fields<String>()..x = 'hi';
-  c2.n(c2);
-  Expect.equals(c2._z, 'hi');
-  Expect.throwsTypeError(() => c.n(c2));
-  Expect.equals(c2._z, 'hi');
-}
-
-class NumBounds<T extends num> {
-  bool m(T t) => t.isNegative;
-}
-
-class MethodTakesNum extends NumBounds<int> {
-  bool m(num obj) => obj.isNegative; // does not need check
-}
-
-class MethodTakesInt extends NumBounds<int> {
-  bool m(int obj) => obj.isNegative; // needs a check
-}
-
-testClassBounds() {
-  NumBounds<num> d = new MethodTakesNum();
-  Expect.equals(d.m(-1.1), true);
-  d = new MethodTakesInt();
-  Expect.throwsTypeError(() => d.m(-1.1));
-}
-
-typedef void F<T>(T t);
-typedef G<T> = void Function<S extends T>(S s);
-
-class FnChecks<T> {
-  F<T> f;
-  G<T> g;
-  T _t;
-  T getT() => _t;
-  F<T> setterForT() {
-    return (T t) {
-      _t = t;
-    };
-  }
-}
-
-testReturnOfFunctionType() {
-  FnChecks<int> cInt = new FnChecks<int>();
-  FnChecks<Object> cObj = cInt;
-  Expect.throwsTypeError(() => cObj.setterForT());
-  Expect.throwsTypeError(() => (cObj.setterForT() as F<Object>));
-  FnChecks<dynamic> cDyn = cInt;
-  Expect.throwsTypeError(() => cDyn.setterForT());
-  Expect.throwsTypeError(
-      () => (cDyn as dynamic).setterForT()('hi')); // dcall throws
-  cInt.setterForT()(42);
-  Expect.equals(cObj.getT(), 42);
-}
-
-testTearoffReturningFunctionType() {
-  FnChecks<int> cInt = new FnChecks<int>();
-  FnChecks<Object> cObj = cInt;
-
-  Expect.throwsTypeError(
-      () => cObj.setterForT, 'unsound tear-off throws at runtime');
-  Expect.equals(cInt.setterForT, cInt.setterForT, 'sound tear-off works');
-}
-
-testFieldOfFunctionType() {
-  FnChecks<Object> c = new FnChecks<String>()..f = (String b) {};
-  Expect.throwsTypeError(() {
-    F<Object> f = c.f;
-  });
-  Expect.throwsTypeError(() {
-    Object f = c.f;
-  });
-  Expect.throwsTypeError(() => c.f);
-  Expect.throwsTypeError(() => c.f(42));
-  Expect.throwsTypeError(() => c.f('hi'));
-  FnChecks<String> cStr = c;
-  cStr.f('hi');
-  FnChecks<dynamic> cDyn = c;
-  Expect.throwsTypeError(() => cDyn.f);
-  Expect.throwsTypeError(() => (cDyn as dynamic).f(42)); // dcall throws
-}
-
-testFieldOfGenericFunctionType() {
-  FnChecks<Object> c = new FnChecks<num>()
-    ..g = <S extends num>(S s) => s.isNegative;
-
-  Expect.throwsTypeError(() {
-    G<Object> g = c.g;
-  });
-  Expect.throwsTypeError(() {
-    var g = c.g;
-  });
-  Expect.throwsTypeError(() => c.g<String>('hi'));
-  Expect.throwsTypeError(() => c.g<int>(42));
-  FnChecks<num> cNum = c;
-  cNum.g(42);
-}
-
-class Base {
-  int _t = 0;
-  add(int t) {
-    _t += t;
-  }
-}
-
-abstract class I<T> {
-  add(T t);
-}
-
-class ExtendsBase extends Base implements I<int> {}
-
-class MixinBase extends Object with Base implements I<int> {}
-
-class MixinBase2 = Object with Base implements I<int>;
-
-testMixinApplication() {
-  I<Object> i = new ExtendsBase();
-  I<Object> j = new MixinBase();
-  I<Object> k = new MixinBase2();
-  Expect.throwsTypeError(() => i.add('hi'));
-  Expect.throwsTypeError(() => j.add('hi'));
-  Expect.throwsTypeError(() => k.add('hi'));
-}
-
-class GenericMethodBounds<T> {
-  Type get t => T;
-  GenericMethodBounds<E> foo<E extends T>() => new GenericMethodBounds<E>();
-  GenericMethodBounds<E> bar<E extends void Function(T)>() =>
-      new GenericMethodBounds<E>();
-}
-
-class GenericMethodBoundsDerived extends GenericMethodBounds<num> {
-  GenericMethodBounds<E> foo<E extends num>() => new GenericMethodBounds<E>();
-  GenericMethodBounds<E> bar<E extends void Function(num)>() =>
-      new GenericMethodBounds<E>();
-}
-
-GenericMethodBounds<E> Function<E extends T>() genericFunctionWithBounds<T>() {
-  inner<E extends T>() => new GenericMethodBounds<E>();
-  return inner;
-}
-
-testGenericMethodBounds() {
-  test(GenericMethodBounds<Object> g) {
-    Expect.throwsTypeError(() => g.foo<String>());
-    Expect.throwsTypeError(() => g.foo());
-    Expect.equals(g.foo<Null>().t, Null);
-    Expect.equals(g.foo<int>().t, int);
-    Expect.isFalse(g.foo<int>() is GenericMethodBounds<double>);
-    g.bar<Function(Object)>();
-    dynamic d = g;
-    d.bar<Function(num)>();
-    Expect.throwsTypeError(() => d.bar<Function(String)>());
-    Expect.throwsTypeError(() => d.bar<Function(Null)>());
-  }
-
-  test(new GenericMethodBounds<num>());
-  test(new GenericMethodBounds<int>());
-  test(new GenericMethodBoundsDerived());
-  test(genericFunctionWithBounds<num>()<int>());
-}
-
-class ClassF<T> {
-  T x;
-  void call(T t) {
-    x = t;
-  }
-}
-
-testCallMethod() {
-  ClassF<int> cc = new ClassF<int>();
-  ClassF<Object> ca = cc; // An upcast, per covariance.
-  F<Object> f = ca;
-  void f2(Object x) {}
-  Expect.equals(f.runtimeType, f2.runtimeType);
-  Expect.throwsTypeError(() => f(new Object()));
-}
-
-class TearOff<T> {
-  method1(T t) => null; // needs check
-  method2(Function(T) takesT) => null;
-  method3(T Function() returnsT) => null; // needs check
-  method4(Function(Function(T)) takesTakesT) => null; // needs check
-  method5(Function(T Function()) takesReturnsT) => null;
-  method6(Function(T) Function() returnsTakesT) => null;
-  method7(T Function() Function() returnsReturnsT) => null; // needs check
-}
-
-typedef F1 = dynamic Function(Object);
-typedef F2 = dynamic Function(dynamic Function(int));
-typedef F3 = dynamic Function(dynamic Function(int Function()));
-typedef F4 = dynamic Function(dynamic Function(int) Function());
-
-testTearOffRuntimeType() {
-  expectRTTI(tearoff, type) => Expect.equals(tearoff.runtimeType, type,
-      'covariant params should reify with Object as their type');
-
-  TearOff<num> t = new TearOff<int>();
-  expectRTTI(t.method1, F1);
-
-  expectRTTI(t.method2, F2);
-  expectRTTI(t.method3, F1);
-
-  expectRTTI(t.method4, F1);
-  expectRTTI(t.method5, F3);
-  expectRTTI(t.method6, F4);
-  expectRTTI(t.method7, F1);
-}
-
-main() {
-  testField();
-  testPrivateFields();
-  testClassBounds();
-  testReturnOfFunctionType();
-  testTearoffReturningFunctionType();
-  testFieldOfFunctionType();
-  testFieldOfGenericFunctionType();
-  testMixinApplication();
-  testGenericMethodBounds();
-  testCallMethod();
-  testTearOffRuntimeType();
-}
diff --git a/tests/language_2/covariant/subtyping_unsafe_call1_test.dart b/tests/language_2/covariant/subtyping_unsafe_call1_test.dart
deleted file mode 100644
index cdcd2dfce43..00000000000
--- a/tests/language_2/covariant/subtyping_unsafe_call1_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-import 'package:expect/expect.dart';
-
-class Foo<T> {
-  dynamic method(T x) {}
-}
-
-main() {
-  Foo<int> intFoo = new Foo<int>();
-  Foo<num> numFoo = intFoo;
-  Expect.throws(() => numFoo.method(2.5));
-}
diff --git a/tests/language_2/covariant/subtyping_unsafe_call2_test.dart b/tests/language_2/covariant/subtyping_unsafe_call2_test.dart
deleted file mode 100644
index 69b5dde7a4d..00000000000
--- a/tests/language_2/covariant/subtyping_unsafe_call2_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-import 'package:expect/expect.dart';
-
-class Implementation {
-  dynamic method(int x) {}
-}
-
-abstract class Interface<T> {
-  dynamic method(T x);
-}
-
-class Subclass extends Implementation implements Interface<int> {}
-
-main() {
-  Subclass subclass = new Subclass();
-  Interface<int> intInterface = subclass;
-  Interface<num> numInterface = intInterface;
-  Expect.throws(() => numInterface.method(2.5));
-}
diff --git a/tests/language_2/covariant/subtyping_unsafe_call3_test.dart b/tests/language_2/covariant/subtyping_unsafe_call3_test.dart
deleted file mode 100644
index 8291cb19077..00000000000
--- a/tests/language_2/covariant/subtyping_unsafe_call3_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-import 'package:expect/expect.dart';
-
-class Implementation {
-  dynamic method(int x) {}
-}
-
-abstract class Interface1<T> {
-  dynamic method(T x);
-}
-
-abstract class Interface2<T> {
-  dynamic method(T x);
-}
-
-class Subclass extends Implementation
-    implements Interface1<int>, Interface2<int> {}
-
-main() {
-  Subclass subclass = new Subclass();
-
-  Interface1<int> intInterface1 = subclass;
-  Interface1<num> numInterface1 = intInterface1;
-  Expect.throws(() => numInterface1.method(2.5));
-
-  Interface2<int> intInterface2 = subclass;
-  Interface2<num> numInterface2 = intInterface2;
-  Expect.throws(() => numInterface2.method(2.5));
-}
diff --git a/tests/language_2/covariant/subtyping_with_mixin_test.dart b/tests/language_2/covariant/subtyping_with_mixin_test.dart
deleted file mode 100644
index 2682871d70e..00000000000
--- a/tests/language_2/covariant/subtyping_with_mixin_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class A {}
-
-class B extends A {}
-
-class Base<S> {}
-
-class Mixin<T> {
-  void f(T arg) {}
-}
-
-abstract class Interface {
-  void f(covariant A arg);
-}
-
-class C<S> extends Base<S> with Mixin<B> implements Interface {}
-
-main() {
-  Interface i = new C<String>();
-  i.f(new B());
-  Expect.throwsTypeError(() {
-    i.f(new A());
-  });
-}
diff --git a/tests/language_2/covariant/tear_off_type_test.dart b/tests/language_2/covariant/tear_off_type_test.dart
deleted file mode 100644
index c99cfb5d751..00000000000
--- a/tests/language_2/covariant/tear_off_type_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-typedef U F<T, U>(T x);
-
-class C<T> {
-  T f(List<T> x) {}
-}
-
-F<List<num>, num> g(C<num> c) {
-  return c.f;
-}
-
-void main() {
-  var tearoff = g(new C<int>());
-  // Since C.f's x parameter is covariant, its type is changed to `Object?` when
-  // determining the type of the tearoff.  So the type of the tearoff should be
-  // `(Object?) -> int`.  (Not, for example, `(List<Object?>) -> int` or
-  // `(List<Object?>) -> Object?`)
-  Expect.isTrue(tearoff is F<Object, int>);
-  // Because the function accepts any object, we can pass strings to it.  This
-  // will not work in Dart 1.
-  Expect.isTrue(tearoff is F<String, int>);
-}
diff --git a/tests/language_2/covariant/type_parameter_test.dart b/tests/language_2/covariant/type_parameter_test.dart
deleted file mode 100644
index 27d7c34572f..00000000000
--- a/tests/language_2/covariant/type_parameter_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-abstract class B<T> {
-  // U will be marked genericCovariantInterface, since U's bound is covariant in
-  // the type parameter T.
-  void f2<U extends T>();
-}
-
-class C extends B<A> {
-  void f1<U extends A>() {}
-
-  // x will be marked genericCovariantImpl, since it might be called via
-  // e.g. B<Object>.
-  void f2<U extends A>() {}
-}
-
-main() {
-  // Dynamic method calls should always have their type arguments checked.
-  dynamic d = new C();
-  Expect.throwsTypeError(() => d.f1<Object>()); //# 01: ok
-
-  // Closure calls should have any type arguments marked "genericCovariantImpl"
-  // checked.
-  B<Object> b = new C();
-  void Function<U extends Object>() f = b.f2;
-  Expect.throwsTypeError(() => f<Object>()); //# 02: ok
-
-  // Interface calls should have any type arguments marked
-  // "genericCovariantImpl" checked provided that the corresponding type
-  // argument on the interface target is marked "genericCovariantInterface".
-  Expect.throwsTypeError(() => b.f2<Object>()); //# 03: ok
-}
diff --git a/tests/language_2/covariant_override/runtime_check_test.dart b/tests/language_2/covariant_override/runtime_check_test.dart
deleted file mode 100644
index 4ffb233e46d..00000000000
--- a/tests/language_2/covariant_override/runtime_check_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class View {
-  addChild(View v) {}
-  transform(View fn(View v)) {}
-}
-
-class MyView extends View {
-  addChild(covariant MyView v) {}
-  transform(covariant MyView fn(Object v)) {}
-}
-
-main() {
-  dynamic mv = new MyView();
-  dynamic v = new View();
-
-  mv.addChild(mv);
-  Expect.throws(() => mv.addChild(v));
-
-  mv.transform((_) => new MyView());
-
-  // TODO(jmesserly): these *should* be cast failures, but DDC is currently
-  // ignoring function type failures w/ a warning at the console...
-
-  // * -> * not a subtype of Object -> MyView
-  Expect.throws(() => mv.transform((_) => mv));
-
-  // View -> View not a subtype of Object -> MyView
-  Expect.throws(() => mv.transform((View x) => x));
-}
diff --git a/tests/language_2/covariant_override/tear_off_type_test.dart b/tests/language_2/covariant_override/tear_off_type_test.dart
deleted file mode 100644
index fe676cd9d19..00000000000
--- a/tests/language_2/covariant_override/tear_off_type_test.dart
+++ /dev/null
@@ -1,159 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// If a parameter is directly or indirectly a covariant override, its type in
-// the method tear-off should become Object.
-
-typedef void TakeInts(int a, int b, int c, int d, int e);
-typedef void TakeObjectsAndInts(Object a, int b, Object c, int d, int e);
-typedef void TakeObjects(Object a, Object b, Object c, Object d, Object e);
-
-typedef void TakeOptionalInts([int a, int b, int c, int d]);
-typedef void TakeOptionalObjectsAndInts([Object a, int b, Object c, int d]);
-
-typedef void TakeNamedInts({int a, int b, int c, int d});
-typedef void TakeNamedObjectsAndInts({Object a, int b, Object c, int d});
-
-class M1 {
-  method(covariant int a, int b) {}
-}
-
-class M2 {
-  method(int a, covariant int b) {}
-}
-
-class C extends Object with M1, M2 {}
-
-class Direct {
-  void positional(covariant int a, int b, covariant int c, int d, int e) {}
-  void optional([covariant int a, int b, covariant int c, int d]) {}
-  void named({covariant int a, int b, covariant int c, int d}) {}
-}
-
-class Inherited extends Direct {}
-
-// ---
-
-class Override1 {
-  void method(covariant int a, int b, int c, int d, int e) {}
-}
-
-class Override2 extends Override1 {
-  void method(int a, int b, covariant int c, int d, int e) {}
-}
-
-class Override3 extends Override2 {
-  void method(int a, int b, int c, int d, int e) {}
-}
-
-// ---
-
-abstract class Implement1 {
-  void method(covariant int a, int b, int c, int d, int e) {}
-}
-
-class Implement2 {
-  void method(int a, covariant int b, int c, int d, int e) {}
-}
-
-class Implement3 {
-  void method(int a, int b, covariant int c, int d, int e) {}
-}
-
-class Implement4 implements Implement3 {
-  void method(int a, int b, int c, covariant int d, int e) {}
-}
-
-class Implement5 implements Implement1, Implement2, Implement4 {
-  void method(int a, int b, int c, int d, covariant int e) {}
-}
-
-// ---
-
-class Interface1 {
-  void method(covariant int a, int b, int c, int d, int e) {}
-}
-
-class Interface2 {
-  void method(int a, covariant int b, int c, int d, int e) {}
-}
-
-class Mixin1 {
-  void method(int a, int b, covariant int c, int d, int e) {}
-}
-
-class Mixin2 {
-  void method(int a, int b, int c, covariant int d, int e) {}
-}
-
-class Superclass {
-  void method(int a, int b, int c, int d, covariant int e) {}
-}
-
-class Mixed extends Superclass
-    with Mixin1, Mixin2
-    implements Interface1, Interface2 {}
-
-void main() {
-  testDirect();
-  testInherited();
-  testOverridden();
-  testImplemented();
-  testMixed();
-}
-
-void testDirect() {
-  var positional = new Direct().positional;
-  Expect.isTrue(positional is TakeInts);
-  Expect.isTrue(positional is TakeObjectsAndInts);
-
-  var optional = new Direct().optional;
-  Expect.isTrue(optional is TakeOptionalInts);
-  Expect.isTrue(optional is TakeOptionalObjectsAndInts);
-
-  var named = new Direct().named;
-  Expect.isTrue(named is TakeNamedInts);
-  Expect.isTrue(named is TakeNamedObjectsAndInts);
-}
-
-void testInherited() {
-  var positional = new Inherited().positional;
-  Expect.isTrue(positional is TakeInts);
-  Expect.isTrue(positional is TakeObjectsAndInts);
-
-  var optional = new Inherited().optional;
-  Expect.isTrue(optional is TakeOptionalInts);
-  Expect.isTrue(optional is TakeOptionalObjectsAndInts);
-
-  var named = new Inherited().named;
-  Expect.isTrue(named is TakeNamedInts);
-  Expect.isTrue(named is TakeNamedObjectsAndInts);
-}
-
-void testOverridden() {
-  var method2 = new Override2().method;
-  Expect.isTrue(method2 is TakeInts);
-  Expect.isTrue(method2 is TakeObjectsAndInts);
-
-  var method3 = new Override3().method;
-  Expect.isTrue(method3 is TakeInts);
-  Expect.isTrue(method3 is TakeObjectsAndInts);
-}
-
-void testImplemented() {
-  var method = new Implement5().method;
-  Expect.isTrue(method is TakeInts);
-  Expect.isTrue(method is TakeObjects);
-}
-
-void testMixed() {
-  // TODO(rnystrom): https://github.com/dart-lang/sdk/issues/28395
-  var method = new Mixed().method;
-  Expect.isTrue(method is TakeInts);
-  Expect.isTrue(method is TakeObjects);
-}
diff --git a/tests/language_2/deferred/call_empty_before_load_lib.dart b/tests/language_2/deferred/call_empty_before_load_lib.dart
deleted file mode 100644
index 4dd608bdeca..00000000000
--- a/tests/language_2/deferred/call_empty_before_load_lib.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-thefun() {}
diff --git a/tests/language_2/deferred/call_empty_before_load_test.dart b/tests/language_2/deferred/call_empty_before_load_test.dart
deleted file mode 100644
index d00894f228c..00000000000
--- a/tests/language_2/deferred/call_empty_before_load_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that calling a function, even though it itself has no effect, will
-// trigger an error if the corresponding deferred library has not been loaded.
-
-import "package:expect/expect.dart";
-import "call_empty_before_load_lib.dart" deferred as lib1;
-
-main() {
-  Expect.throws(() => lib1.thefun());
-}
diff --git a/tests/language_2/deferred/closurize_load_library_lib.dart b/tests/language_2/deferred/closurize_load_library_lib.dart
deleted file mode 100644
index 7b6872a8442..00000000000
--- a/tests/language_2/deferred/closurize_load_library_lib.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-var trueVar = true;
diff --git a/tests/language_2/deferred/closurize_load_library_test.dart b/tests/language_2/deferred/closurize_load_library_test.dart
deleted file mode 100644
index 10a4a50218d..00000000000
--- a/tests/language_2/deferred/closurize_load_library_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-import "closurize_load_library_lib.dart" deferred as lib;
-
-void main() {
-  var x = lib.loadLibrary;
-  asyncStart();
-  x().then((_) {
-    Expect.isTrue(lib.trueVar);
-    asyncEnd();
-  });
-}
diff --git a/tests/language_2/deferred/constant_list_lib.dart b/tests/language_2/deferred/constant_list_lib.dart
deleted file mode 100644
index b8751391971..00000000000
--- a/tests/language_2/deferred/constant_list_lib.dart
+++ /dev/null
@@ -1,8 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-final finalConstList = const [1, 2];
-var nonFinalConstList = const [3, 4];
diff --git a/tests/language_2/deferred/constant_list_test.dart b/tests/language_2/deferred/constant_list_test.dart
deleted file mode 100644
index cdae11c4ce6..00000000000
--- a/tests/language_2/deferred/constant_list_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-import "constant_list_lib.dart" deferred as lib;
-
-void main() {
-  asyncStart();
-  lib.loadLibrary().then((_) {
-    Expect.equals("[1, 2]", lib.finalConstList.toString());
-    Expect.equals("[3, 4]", lib.nonFinalConstList.toString());
-    asyncEnd();
-  });
-}
diff --git a/tests/language_2/deferred/constraints_lib.dart b/tests/language_2/deferred/constraints_lib.dart
deleted file mode 100644
index 531843256ad..00000000000
--- a/tests/language_2/deferred/constraints_lib.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class C {
-  static int staticMethod() => 42;
-}
-
-class G<T> {}
-
-class Const {
-  const Const();
-  const Const.otherConstructor();
-  static const instance = const Const();
-}
-
-const constantInstance = const Const();
diff --git a/tests/language_2/deferred/constraints_lib2.dart b/tests/language_2/deferred/constraints_lib2.dart
deleted file mode 100644
index c2e165a1bc7..00000000000
--- a/tests/language_2/deferred/constraints_lib2.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-foo() => 42;
-
-class C {}
diff --git a/tests/language_2/deferred/constraints_type_annotation_test.dart b/tests/language_2/deferred/constraints_type_annotation_test.dart
deleted file mode 100644
index bb620b8f46f..00000000000
--- a/tests/language_2/deferred/constraints_type_annotation_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-import "constraints_lib.dart" deferred as lib;
-import "constraints_lib.dart" as lib2; //# type_annotation_non_deferred: ok
-
-class F {}
-
-class G2<T> {}
-
-main() {
-  lib.C a = null; //# type_annotation_null: compile-time error
-  Expect.throws(() { //# new_before_load: compile-time error
-    lib.C a = new lib.C(); //# new_before_load: continued
-  }, (e) => e is Error); //# new_before_load: continued
-
-  // In this case we do not defer C.
-  lib2.C a1 = new lib2.C(); //# type_annotation_non_deferred: continued
-  asyncStart();
-  lib.loadLibrary().then((_) {
-    lib.C a2 = new lib.C(); //# type_annotation1: compile-time error
-    lib.G<F> a3 = new lib.G<F>(); //# type_annotation_generic1: compile-time error
-    G2<lib.C> a4 = new G2(); //# type_annotation_generic2: compile-time error
-    G2<lib.C> a5 = new G2<lib.C>(); //# type_annotation_generic3: compile-time error
-    lib.G<lib.C> a = new lib.G<lib.C>(); //# type_annotation_generic4: compile-time error
-    var a6 = new lib.C(); //# new: ok
-    var g1 = new lib.G<F>(); //# new_generic1: ok
-    // new G2<lib.C>() does not give a dynamic type error because a malformed
-    // type used as type-parameter is treated as dynamic.
-    var g2 = new G2<lib.C>(); //# new_generic2: compile-time error
-    var g3 = new lib.G<lib.C>(); //# new_generic3: compile-time error
-    var instance = lib.constantInstance;
-    Expect.throwsTypeError(() { //# is_check: compile-time error
-      bool a7 = instance is lib.Const; //# is_check: continued
-    }); //# is_check: continued
-    Expect.throwsTypeError(() { //# as_operation: compile-time error
-      instance as lib.Const; //# as_operation: continued
-    }); //# as_operation: continued
-    Expect.throwsTypeError(() { //# catch_check: compile-time error
-      try { throw instance; } on lib.Const {} //# catch_check: continued
-    }); //# catch_check: continued
-    int i = lib.C.staticMethod(); //# static_method: ok
-    asyncEnd();
-  });
-}
-
-lib.C a9 = null; //# type_annotation_top_level: compile-time error
diff --git a/tests/language_2/deferred/deferred_and_immediate_import_lib.dart b/tests/language_2/deferred/deferred_and_immediate_import_lib.dart
deleted file mode 100644
index 26ffbdb10a1..00000000000
--- a/tests/language_2/deferred/deferred_and_immediate_import_lib.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-foo() {
-  print("Foo!");
-}
diff --git a/tests/language_2/deferred/deferred_and_immediate_import_test.dart b/tests/language_2/deferred/deferred_and_immediate_import_test.dart
deleted file mode 100644
index 5294a9716d3..00000000000
--- a/tests/language_2/deferred/deferred_and_immediate_import_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "deferred_and_immediate_import_lib.dart" as immediatePrefix;
-import "deferred_and_immediate_import_lib.dart" deferred as deferredPrefix;
-
-main() async {
-  immediatePrefix.foo();
-
-  Expect.throws(() {
-    deferredPrefix.foo();
-  });
-
-  await deferredPrefix.loadLibrary();
-  deferredPrefix.foo();
-}
diff --git a/tests/language_2/deferred/duplicate_prefix1_runtime_test.dart b/tests/language_2/deferred/duplicate_prefix1_runtime_test.dart
deleted file mode 100644
index 74362d0cb84..00000000000
--- a/tests/language_2/deferred/duplicate_prefix1_runtime_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "prefix_constraints_lib2.dart" as lib;
-
-
-void main() {}
diff --git a/tests/language_2/deferred/duplicate_prefix1_test.dart b/tests/language_2/deferred/duplicate_prefix1_test.dart
deleted file mode 100644
index fa0bfe6f5da..00000000000
--- a/tests/language_2/deferred/duplicate_prefix1_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "prefix_constraints_lib2.dart" as lib;
-import "prefix_constraints_lib.dart" deferred as lib;
-//                                   ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SHARED_DEFERRED_PREFIX
-//                                               ^
-// [cfe] Can't use the name 'lib' for a deferred library, as the name is used elsewhere.
-
-void main() {}
diff --git a/tests/language_2/deferred/duplicate_prefix2_runtime_test.dart b/tests/language_2/deferred/duplicate_prefix2_runtime_test.dart
deleted file mode 100644
index fc462b0a794..00000000000
--- a/tests/language_2/deferred/duplicate_prefix2_runtime_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-
-import "prefix_constraints_lib2.dart" as lib;
-
-void main() {}
diff --git a/tests/language_2/deferred/duplicate_prefix2_test.dart b/tests/language_2/deferred/duplicate_prefix2_test.dart
deleted file mode 100644
index 21f839d7f66..00000000000
--- a/tests/language_2/deferred/duplicate_prefix2_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "prefix_constraints_lib.dart" deferred as lib;
-//                                   ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SHARED_DEFERRED_PREFIX
-//                                               ^
-// [cfe] Can't use the name 'lib' for a deferred library, as the name is used elsewhere.
-import "prefix_constraints_lib2.dart" as lib;
-
-void main() {}
diff --git a/tests/language_2/deferred/duplicate_prefix3_runtime_test.dart b/tests/language_2/deferred/duplicate_prefix3_runtime_test.dart
deleted file mode 100644
index ef6478e4f42..00000000000
--- a/tests/language_2/deferred/duplicate_prefix3_runtime_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-
-
-
-void main() {}
diff --git a/tests/language_2/deferred/duplicate_prefix3_test.dart b/tests/language_2/deferred/duplicate_prefix3_test.dart
deleted file mode 100644
index 59d732ad8d3..00000000000
--- a/tests/language_2/deferred/duplicate_prefix3_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "prefix_constraints_lib.dart" deferred as lib;
-//                                   ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SHARED_DEFERRED_PREFIX
-import "prefix_constraints_lib2.dart" deferred as lib;
-//                                    ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SHARED_DEFERRED_PREFIX
-//                                                ^
-// [cfe] Can't use the name 'lib' for a deferred library, as the name is used elsewhere.
-
-void main() {}
diff --git a/tests/language_2/deferred/exported_main_lib.dart b/tests/language_2/deferred/exported_main_lib.dart
deleted file mode 100644
index 8c92d0c7d29..00000000000
--- a/tests/language_2/deferred/exported_main_lib.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  print("Usurper to the role of root library!");
-}
diff --git a/tests/language_2/deferred/exported_main_test.dart b/tests/language_2/deferred/exported_main_test.dart
deleted file mode 100644
index b7e19fbe916..00000000000
--- a/tests/language_2/deferred/exported_main_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-export "exported_main_lib.dart";
-
-@pragma("vm:entry-point")
-foo() {
-  // The frontend will not recognize that this is the root library. Though this
-  // library is not reachable from what the frontend considers the root library,
-  // the entry point pragma will still cause this function to compiled by
-  // gen_snaption, so it is important that this library is assigned to a
-  // loading unit.
-}
diff --git a/tests/language_2/deferred/function_type_lib.dart b/tests/language_2/deferred/function_type_lib.dart
deleted file mode 100644
index 098d752152e..00000000000
--- a/tests/language_2/deferred/function_type_lib.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class T {
-  A foo(int x) {}
-}
-
-class A {}
-
-typedef A F(int x);
-
-use(x) => x;
-
-runTest() {
-  use(new A());
-  Expect.isTrue(new T().foo is F);
-}
diff --git a/tests/language_2/deferred/function_type_test.dart b/tests/language_2/deferred/function_type_test.dart
deleted file mode 100644
index 7a0a2c22076..00000000000
--- a/tests/language_2/deferred/function_type_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=
-// VMOptions=--dwarf_stack_traces --no-retain_function_objects --no-retain_code_objects
-
-import 'function_type_lib.dart' deferred as lib;
-
-main() {
-  lib.loadLibrary().then((_) {
-    lib.runTest();
-  });
-}
diff --git a/tests/language_2/deferred/global_lib.dart b/tests/language_2/deferred/global_lib.dart
deleted file mode 100644
index 3299c42a617..00000000000
--- a/tests/language_2/deferred/global_lib.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-var sideEffectCounter = 0;
-
-final finalConstGlobal = "finalConstGlobal";
-final finalNonConstGlobal = (() {
-  sideEffectCounter++;
-  return "finalNonConstGlobal";
-}());
-
-var lazyConstGlobal = "lazyConstGlobal";
-// Regression test for bug #21840.
-var const1Global = const {};
-final lazyConstGlobal2 = const1Global;
-
-var lazyNonConstGlobal = (() {
-  sideEffectCounter++;
-  return "lazyNonConstGlobal";
-}());
-
-readFinalConstGlobal() => finalConstGlobal;
-readFinalNonConstGlobal() => finalNonConstGlobal;
-readLazyConstGlobal() => lazyConstGlobal;
-readLazyNonConstGlobal() => lazyNonConstGlobal;
-writeLazyConstGlobal(x) {
-  lazyConstGlobal = x;
-}
-
-writeLazyNonConstGlobal(x) {
-  lazyNonConstGlobal = x;
-}
diff --git a/tests/language_2/deferred/global_test.dart b/tests/language_2/deferred/global_test.dart
deleted file mode 100644
index 591d4e52826..00000000000
--- a/tests/language_2/deferred/global_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-import "global_lib.dart" deferred as lib;
-
-var nonDeferredGlobal = const {};
-
-void main() {
-  nonDeferredGlobal = null;
-  asyncStart();
-  lib.loadLibrary().then((_) {
-    // Ensure non-deferred globals are not reset when loading a deferred
-    // library.
-    Expect.equals(null, nonDeferredGlobal);
-
-    Expect.equals("finalConstGlobal", lib.finalConstGlobal);
-    Expect.equals(0, lib.sideEffectCounter);
-    Expect.equals("finalNonConstGlobal", lib.finalNonConstGlobal);
-    Expect.equals(1, lib.sideEffectCounter);
-    Expect.equals("finalConstGlobal", lib.finalConstGlobal);
-    Expect.equals("finalNonConstGlobal", lib.finalNonConstGlobal);
-    Expect.equals("lazyConstGlobal", lib.lazyConstGlobal);
-    Expect.equals(1, lib.sideEffectCounter);
-    Expect.equals("lazyNonConstGlobal", lib.lazyNonConstGlobal);
-    Expect.equals(2, lib.sideEffectCounter);
-    Expect.equals("finalConstGlobal", lib.readFinalConstGlobal());
-    Expect.equals("finalNonConstGlobal", lib.readFinalNonConstGlobal());
-    Expect.equals("lazyConstGlobal", lib.readLazyConstGlobal());
-    Expect.equals("lazyNonConstGlobal", lib.readLazyNonConstGlobal());
-
-    lib.lazyConstGlobal = "lazyConstGlobal_mutated";
-    lib.lazyNonConstGlobal = "lazyNonConstGlobal_mutated";
-    Expect.equals("lazyConstGlobal_mutated", lib.lazyConstGlobal);
-    Expect.equals("lazyNonConstGlobal_mutated", lib.lazyNonConstGlobal);
-    Expect.equals("lazyConstGlobal_mutated", lib.readLazyConstGlobal());
-    Expect.equals("lazyNonConstGlobal_mutated", lib.readLazyNonConstGlobal());
-    Expect.equals(2, lib.sideEffectCounter);
-
-    lib.writeLazyConstGlobal("lazyConstGlobal_mutated2");
-    lib.writeLazyNonConstGlobal("lazyNonConstGlobal_mutated2");
-    Expect.equals("lazyConstGlobal_mutated2", lib.lazyConstGlobal);
-    Expect.equals("lazyNonConstGlobal_mutated2", lib.lazyNonConstGlobal);
-    Expect.equals("lazyConstGlobal_mutated2", lib.readLazyConstGlobal());
-    Expect.equals("lazyNonConstGlobal_mutated2", lib.readLazyNonConstGlobal());
-
-    Expect.mapEquals({}, lib.lazyConstGlobal2);
-    lib.const1Global = const {'foo': 'bar'};
-    Expect.equals(2, lib.sideEffectCounter);
-    Expect.equals(const {'foo': 'bar'}['foo'], lib.const1Global['foo']);
-    // Try loading the deferred library again, should not reset the globals.
-    lib.loadLibrary().then((_) {
-      Expect.equals(const {'foo': 'bar'}['foo'], lib.const1Global['foo']);
-      asyncEnd();
-    });
-  });
-}
diff --git a/tests/language_2/deferred/import_core_test.dart b/tests/language_2/deferred/import_core_test.dart
deleted file mode 100644
index 968fe90406d..00000000000
--- a/tests/language_2/deferred/import_core_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Nothing in the language spec explicitly prohibits a deferred import of
-// 'dart:core'.  Make sure it doesn't lead to any strange behavior.
-
-import "dart:core" deferred as core show Object;
-
-main() {
-  core.loadLibrary().then((_) => null);
-}
diff --git a/tests/language_2/deferred/inheritance_constraints_lib.dart b/tests/language_2/deferred/inheritance_constraints_lib.dart
deleted file mode 100644
index 5211f743565..00000000000
--- a/tests/language_2/deferred/inheritance_constraints_lib.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Foo {}
-
-class Foo2 {}
diff --git a/tests/language_2/deferred/inheritance_constraints_runtime_test.dart b/tests/language_2/deferred/inheritance_constraints_runtime_test.dart
deleted file mode 100644
index 42d0b221137..00000000000
--- a/tests/language_2/deferred/inheritance_constraints_runtime_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-import "inheritance_constraints_lib.dart" deferred as lib;
-
-class Foo {}
-
-class Foo2 extends D {}
-
-class A extends
-
-    Foo {}
-
-class B
-    implements
-
-        Foo {}
-
-class C1 {}
-
-class C = C1
-    with
-
-        Foo;
-
-class D {
-  D();
-  factory D.factory() =
-
-      Foo2;
-}
-
-void main() {
-  new A();
-  new B();
-  new C();
-  new D.factory();
-}
diff --git a/tests/language_2/deferred/inheritance_constraints_test.dart b/tests/language_2/deferred/inheritance_constraints_test.dart
deleted file mode 100644
index 065443b5c3c..00000000000
--- a/tests/language_2/deferred/inheritance_constraints_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "inheritance_constraints_lib.dart" deferred as lib;
-
-class Foo {}
-
-class Foo2 extends D {}
-
-class A extends lib.Foo {}
-//              ^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DEFERRED_CLASS
-
-class B implements lib.Foo {}
-//                 ^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DEFERRED_CLASS
-
-class C1 {}
-
-class C = C1 with lib.Foo;
-//                ^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DEFERRED_CLASS
-
-class D {
-  D();
-  factory D.factory() = lib.Foo2;
-//                      ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.REDIRECT_TO_INVALID_RETURN_TYPE
-// [cfe] The constructor function type 'Foo2 Function()' isn't a subtype of 'D Function()'.
-}
-
-void main() {
-  new A();
-  new B();
-  new C();
-  new D.factory();
-}
diff --git a/tests/language_2/deferred/inlined_test.dart b/tests/language_2/deferred/inlined_test.dart
deleted file mode 100644
index 1f48d6b85b8..00000000000
--- a/tests/language_2/deferred/inlined_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10
-
-// @dart = 2.9
-
-// Declares foo that returns 42.
-import "constraints_lib2.dart" deferred as lib;
-
-import 'package:expect/expect.dart';
-
-bool libLoaded = false;
-
-main() {
-  Expect.equals(88, heyhey());
-
-  // Trigger optimization of 'hehey' which inlines 'barbar'.
-  for (int i = 0; i < 30000; i++) {
-    heyhey();
-  }
-
-  lib.loadLibrary().then((_) {
-    libLoaded = true;
-    Expect.equals(42, heyhey());
-  });
-}
-
-// Inline bar in optimized code.
-heyhey() => barbar();
-
-barbar() {
-  if (libLoaded) {
-    // Returns 42.
-    return lib.foo();
-  }
-  return 88;
-}
diff --git a/tests/language_2/deferred/load_constants.dart b/tests/language_2/deferred/load_constants.dart
deleted file mode 100644
index 9948757c4ac..00000000000
--- a/tests/language_2/deferred/load_constants.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart version of two-argument Ackermann-Peter function.
-
-// @dart = 2.9
-
-library deferred_load_constants;
-
-// Constant declaration.
-const c = const C();
-
-// Class declaration (`C` is a constant expression).
-class C {
-  const C();
-  static int staticfun(int x) => x;
-}
-
-// Function type definition.
-typedef int funtype(int x);
-// Top-level function.
-int toplevel(int x) => x;
diff --git a/tests/language_2/deferred/load_constants_runtime_test.dart b/tests/language_2/deferred/load_constants_runtime_test.dart
deleted file mode 100644
index 4d35e068e68..00000000000
--- a/tests/language_2/deferred/load_constants_runtime_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart version of two-argument Ackermann-Peter function.
-
-library deferred_load_constants;
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-import "load_constants.dart" deferred as foo;
-import "load_constants.dart";
-
-main() {
-  asyncStart();
-  Expect.throws(() => foo.c);
-  Expect.throws(() => foo.C);
-  Expect.throws(() => foo.funtype);
-  Expect.throws(() => foo.toplevel);
-  foo.loadLibrary().whenComplete(() {
-    // Reading constant declarations through deferred prefix works.
-    Expect.identical(c, foo.c);
-    Expect.identical(C, foo.C);
-    Expect.identical(funtype, foo.funtype);
-    Expect.identical(toplevel, foo.toplevel);
-    Expect.identical(C.staticfun, foo.C.staticfun);
-    // Access through deferred prefix is not a constant expression.
-
-
-
-
-
-
-    asyncEnd();
-  });
-}
diff --git a/tests/language_2/deferred/load_constants_test.dart b/tests/language_2/deferred/load_constants_test.dart
deleted file mode 100644
index b96e944a691..00000000000
--- a/tests/language_2/deferred/load_constants_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart version of two-argument Ackermann-Peter function.
-
-// @dart = 2.9
-
-library deferred_load_constants;
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-import "load_constants.dart" deferred as foo;
-import "load_constants.dart";
-
-main() {
-  asyncStart();
-  Expect.throws(() => foo.c);
-  Expect.throws(() => foo.C);
-  Expect.throws(() => foo.funtype);
-  Expect.throws(() => foo.toplevel);
-  foo.loadLibrary().whenComplete(() {
-    // Reading constant declarations through deferred prefix works.
-    Expect.identical(c, foo.c);
-    Expect.identical(C, foo.C);
-    Expect.identical(funtype, foo.funtype);
-    Expect.identical(toplevel, foo.toplevel);
-    Expect.identical(C.staticfun, foo.C.staticfun);
-    // Access through deferred prefix is not a constant expression.
-    Expect.throws(() => const [foo.c]);
-    //                  ^
-    // [cfe] Constant evaluation error:
-    //                         ^^^^^
-    // [cfe] 'foo' can't be used in a constant expression because it's marked as 'deferred' which means it isn't available until loaded.
-    //                             ^
-    // [analyzer] COMPILE_TIME_ERROR.COLLECTION_ELEMENT_FROM_DEFERRED_LIBRARY
-    Expect.throws(() => const [foo.C]);
-    //                  ^
-    // [cfe] Constant evaluation error:
-    //                         ^^^^^
-    // [cfe] 'foo' can't be used in a constant expression because it's marked as 'deferred' which means it isn't available until loaded.
-    //                             ^
-    // [analyzer] COMPILE_TIME_ERROR.COLLECTION_ELEMENT_FROM_DEFERRED_LIBRARY
-    Expect.throws(() => const [foo.funtype]);
-    //                  ^
-    // [cfe] Constant evaluation error:
-    //                         ^^^^^^^^^^^
-    // [cfe] 'foo' can't be used in a constant expression because it's marked as 'deferred' which means it isn't available until loaded.
-    //                             ^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.COLLECTION_ELEMENT_FROM_DEFERRED_LIBRARY
-    Expect.throws(() => const [foo.toplevel]);
-    //                  ^
-    // [cfe] Constant evaluation error:
-    //                         ^^^^^^^^^^^^
-    // [cfe] 'foo' can't be used in a constant expression because it's marked as 'deferred' which means it isn't available until loaded.
-    //                             ^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.COLLECTION_ELEMENT_FROM_DEFERRED_LIBRARY
-    Expect.throws(() => const [foo.C.staticfun]);
-    //                  ^
-    // [cfe] Constant evaluation error:
-    //                         ^^^^^^^^^^^^^^^
-    // [cfe] 'foo' can't be used in a constant expression because it's marked as 'deferred' which means it isn't available until loaded.
-    //                             ^
-    // [analyzer] COMPILE_TIME_ERROR.COLLECTION_ELEMENT_FROM_DEFERRED_LIBRARY
-
-    asyncEnd();
-  });
-}
diff --git a/tests/language_2/deferred/load_inval_code_lib.dart b/tests/language_2/deferred/load_inval_code_lib.dart
deleted file mode 100644
index d586b249e84..00000000000
--- a/tests/language_2/deferred/load_inval_code_lib.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-foo() {
-  return "foo from library";
-}
diff --git a/tests/language_2/deferred/load_inval_code_test.dart b/tests/language_2/deferred/load_inval_code_test.dart
deleted file mode 100644
index 88a2f325c65..00000000000
--- a/tests/language_2/deferred/load_inval_code_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// VMOptions=--optimization-counter-threshold=100
-
-// @dart = 2.9
-
-import "load_inval_code_lib.dart" deferred as d;
-
-bool loaded = false;
-
-var x = 0;
-
-bla() {
-  if (loaded) {
-    // Loading the library should have invalidated the optimized
-    // code containing the NSME. Now expect this call to succeed.
-    d.foo();
-  } else {
-    // Do some "busy work" to trigger optimization.
-    for (var i = 0; i < 100; i++) {
-      x++;
-    }
-  }
-}
-
-warmup() {
-  for (int i = 1; i < 1000; i++) {
-    bla();
-  }
-}
-
-main() {
-  warmup();
-  d.loadLibrary().then((_) {
-    loaded = true;
-    bla();
-  });
-}
diff --git a/tests/language_2/deferred/load_library_wrong_args_lib.dart b/tests/language_2/deferred/load_library_wrong_args_lib.dart
deleted file mode 100644
index 4f27b7807f7..00000000000
--- a/tests/language_2/deferred/load_library_wrong_args_lib.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-foo() => 42;
diff --git a/tests/language_2/deferred/load_library_wrong_args_test.dart b/tests/language_2/deferred/load_library_wrong_args_test.dart
deleted file mode 100644
index 0565e5907f9..00000000000
--- a/tests/language_2/deferred/load_library_wrong_args_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-
-// @dart = 2.9
-import "load_library_wrong_args_lib.dart" deferred as lib;
-
-void main() {
-  // Loadlibrary should be called without arguments.
-  lib.loadLibrary(10);
-//    ^
-// [cfe] 'loadLibrary' takes no arguments.
-//                ^^
-// [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS
-}
diff --git a/tests/language_2/deferred/loading_unit_root_has_only_export_lib1.dart b/tests/language_2/deferred/loading_unit_root_has_only_export_lib1.dart
deleted file mode 100644
index 073fb853414..00000000000
--- a/tests/language_2/deferred/loading_unit_root_has_only_export_lib1.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-export "loading_unit_root_has_only_export_lib2.dart";
diff --git a/tests/language_2/deferred/loading_unit_root_has_only_export_lib2.dart b/tests/language_2/deferred/loading_unit_root_has_only_export_lib2.dart
deleted file mode 100644
index cfd8e4e9e17..00000000000
--- a/tests/language_2/deferred/loading_unit_root_has_only_export_lib2.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-foo() => "in lib2";
diff --git a/tests/language_2/deferred/loading_unit_root_has_only_export_test.dart b/tests/language_2/deferred/loading_unit_root_has_only_export_test.dart
deleted file mode 100644
index 5fff57ba357..00000000000
--- a/tests/language_2/deferred/loading_unit_root_has_only_export_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "loading_unit_root_has_only_export_lib1.dart" deferred as lib;
-
-main() async {
-  await lib.loadLibrary();
-  Expect.equals(lib.foo(), "in lib2");
-}
diff --git a/tests/language_2/deferred/mixin_lib1.dart b/tests/language_2/deferred/mixin_lib1.dart
deleted file mode 100644
index ae316376755..00000000000
--- a/tests/language_2/deferred/mixin_lib1.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib1;
-
-import "mixin_shared.dart";
-import "mixin_test.dart";
-
-class Mixin {
-  foo() => "lib1.Mixin";
-}
-
-class A extends Object with NonDeferredMixin {
-  foo() {
-    return "A with " + super.foo();
-  }
-}
-
-class B extends Object with Mixin {
-  foo() {
-    return "B with " + super.foo();
-  }
-}
-
-class C extends Object with Mixin, NonDeferredMixin1 {
-  foo() {
-    return "C with " + super.foo();
-  }
-}
-
-class D extends Object with NonDeferredMixin2, Mixin {
-  foo() {
-    return "D with " + super.foo();
-  }
-}
-
-class E extends Object with SharedMixin {
-  foo() {
-    return "E with " + super.foo();
-  }
-}
diff --git a/tests/language_2/deferred/mixin_lib2.dart b/tests/language_2/deferred/mixin_lib2.dart
deleted file mode 100644
index 899b6fd0c85..00000000000
--- a/tests/language_2/deferred/mixin_lib2.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib2;
-
-import "mixin_shared.dart";
-
-class A extends Object with SharedMixin {
-  foo() {
-    return "lib2.A with " + super.foo();
-  }
-}
diff --git a/tests/language_2/deferred/mixin_shared.dart b/tests/language_2/deferred/mixin_shared.dart
deleted file mode 100644
index 7c97830eb61..00000000000
--- a/tests/language_2/deferred/mixin_shared.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library shared;
-
-class SharedMixin {
-  foo() => "SharedMixin";
-}
diff --git a/tests/language_2/deferred/mixin_test.dart b/tests/language_2/deferred/mixin_test.dart
deleted file mode 100644
index 3fa9a8b7562..00000000000
--- a/tests/language_2/deferred/mixin_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-import "mixin_lib1.dart" deferred as lib1;
-import "mixin_lib2.dart" deferred as lib2;
-
-class NonDeferredMixin {
-  foo() => "NonDeferredMixin";
-}
-
-class NonDeferredMixin1 {
-  foo() => "NonDeferredMixin1";
-}
-
-class NonDeferredMixin2 {
-  foo() => "NonDeferredMixin2";
-}
-
-main() {
-  Expect.equals("NonDeferredMixin", new NonDeferredMixin().foo());
-  Expect.equals("NonDeferredMixin1", new NonDeferredMixin1().foo());
-  Expect.equals("NonDeferredMixin2", new NonDeferredMixin2().foo());
-  asyncStart();
-  lib1.loadLibrary().then((_) {
-    Expect.equals("lib1.Mixin", new lib1.Mixin().foo());
-    Expect.equals("A with NonDeferredMixin", new lib1.A().foo());
-    Expect.equals("B with lib1.Mixin", new lib1.B().foo());
-    Expect.equals("C with NonDeferredMixin1", new lib1.C().foo());
-    Expect.equals("D with lib1.Mixin", new lib1.D().foo());
-    Expect.equals("E with SharedMixin", new lib1.E().foo());
-    lib2.loadLibrary().then((_) {
-      Expect.equals("lib2.A with SharedMixin", new lib2.A().foo());
-      asyncEnd();
-    });
-  });
-}
diff --git a/tests/language_2/deferred/no_prefix_runtime_test.dart b/tests/language_2/deferred/no_prefix_runtime_test.dart
deleted file mode 100644
index 7b1d25141a7..00000000000
--- a/tests/language_2/deferred/no_prefix_runtime_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Loading a deferred library without prefix is not allowed.
-import "constraints_lib2.dart"
-
-    ;
-
-void main() {}
diff --git a/tests/language_2/deferred/no_prefix_test.dart b/tests/language_2/deferred/no_prefix_test.dart
deleted file mode 100644
index 5d04ee4e524..00000000000
--- a/tests/language_2/deferred/no_prefix_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Loading a deferred library without prefix is not allowed.
-import "constraints_lib2.dart"
-  deferred
-//^^^^^^^^
-// [analyzer] SYNTACTIC_ERROR.MISSING_PREFIX_IN_DEFERRED_IMPORT
-// [cfe] Deferred imports should have a prefix.
-    ;
-
-void main() {}
diff --git a/tests/language_2/deferred/no_such_method_lib.dart b/tests/language_2/deferred/no_such_method_lib.dart
deleted file mode 100644
index 58b2b7e4cda..00000000000
--- a/tests/language_2/deferred/no_such_method_lib.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class C {
-  noSuchMethod(Invocation invocation) => 42;
-}
diff --git a/tests/language_2/deferred/no_such_method_test.dart b/tests/language_2/deferred/no_such_method_test.dart
deleted file mode 100644
index e4324997ba8..00000000000
--- a/tests/language_2/deferred/no_such_method_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-import "no_such_method_lib.dart" deferred as lib;
-
-void main() {
-  asyncStart();
-  lib.loadLibrary().then((_) {
-    Expect.equals(42, (new lib.C() as dynamic).nonExisting());
-    asyncEnd();
-  });
-}
diff --git a/tests/language_2/deferred/not_loaded_check_lib.dart b/tests/language_2/deferred/not_loaded_check_lib.dart
deleted file mode 100644
index 1ca4f5f82e1..00000000000
--- a/tests/language_2/deferred/not_loaded_check_lib.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-foo(int arg) {}
-
-class C {
-  C(int arg) {}
-  static foo(int arg) {}
-}
-
-var a;
-
-int get getter => 42;
-
-void set setter(int arg) {
-  a = 10;
-}
-
-var list = <int>[];
-
-var closure = (int arg) => 3;
diff --git a/tests/language_2/deferred/not_loaded_check_test.dart b/tests/language_2/deferred/not_loaded_check_test.dart
deleted file mode 100644
index c08177caf51..00000000000
--- a/tests/language_2/deferred/not_loaded_check_test.dart
+++ /dev/null
@@ -1,80 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-import "not_loaded_check_lib.dart" deferred as lib;
-
-// Test that we give appropriate errors when accessing an element that is not
-// yet loaded.
-
-var c;
-
-expectSideEffect(test) {
-  c = 0;
-  test();
-  Expect.isTrue(c == 1);
-}
-
-expectNoSideEffect(test) {
-  c = 0;
-  test();
-  Expect.isTrue(c == 0);
-}
-
-expectThrowsNotLoaded(test) {
-  Expect.throws(test, (e) => e is Error);
-}
-
-int sideEffect() {
-  c = 1;
-  return 10;
-}
-
-void main() {
-  expectSideEffect(() {
-    expectThrowsNotLoaded(() {
-      lib.foo(sideEffect());
-    });
-  });
-  expectNoSideEffect(() {
-    expectThrowsNotLoaded(() {
-      lib.C.foo(sideEffect());
-    });
-  });
-  expectSideEffect(() {
-    expectThrowsNotLoaded(() {
-      new lib.C(sideEffect());
-    });
-  });
-  expectThrowsNotLoaded(() {
-    lib.a;
-  });
-  expectSideEffect(() {
-    expectThrowsNotLoaded(() {
-      lib.a = sideEffect();
-    });
-  });
-  expectThrowsNotLoaded(() {
-    lib.getter;
-  });
-  expectSideEffect(() {
-    expectThrowsNotLoaded(() {
-      lib.setter = sideEffect();
-    });
-  });
-  expectNoSideEffect(() {
-    expectThrowsNotLoaded(() {
-      lib.list[sideEffect()] = sideEffect();
-    });
-  });
-  expectSideEffect(() {
-    expectThrowsNotLoaded(() {
-      lib.closure(sideEffect());
-    });
-  });
-}
diff --git a/tests/language_2/deferred/only_constant_lib.dart b/tests/language_2/deferred/only_constant_lib.dart
deleted file mode 100644
index 4bced2af9c6..00000000000
--- a/tests/language_2/deferred/only_constant_lib.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-const constant = const ["a", "b", "c"];
diff --git a/tests/language_2/deferred/only_constant_test.dart b/tests/language_2/deferred/only_constant_test.dart
deleted file mode 100644
index 06970f3a97d..00000000000
--- a/tests/language_2/deferred/only_constant_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing import of only constants from a deferred library.
-
-import 'package:expect/expect.dart';
-
-import "only_constant_lib.dart" deferred as lib;
-
-void main() {
-  lib.loadLibrary().then((_) {
-    Expect.equals(lib.constant, const ["a", "b", "c"]);
-  });
-}
diff --git a/tests/language_2/deferred/optimized_test.dart b/tests/language_2/deferred/optimized_test.dart
deleted file mode 100644
index 5f053b90d5e..00000000000
--- a/tests/language_2/deferred/optimized_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --compiler-passes=-Inlining
-
-// @dart = 2.9
-
-// Declares foo that returns 42.
-import "constraints_lib2.dart" deferred as lib;
-
-import 'package:expect/expect.dart';
-
-bool libLoaded = false;
-
-main() {
-  Expect.equals(88, heyhey());
-
-  for (int i = 0; i < 30; i++) {
-    heyhey();
-  }
-
-  lib.loadLibrary().then((_) {
-    libLoaded = true;
-    Expect.equals(42, heyhey());
-  });
-}
-
-heyhey() => barbar();
-
-barbar() {
-  if (libLoaded) {
-    // Returns 42.
-    return lib.foo();
-  }
-  return 88;
-}
diff --git a/tests/language_2/deferred/prefix_constraints_lib.dart b/tests/language_2/deferred/prefix_constraints_lib.dart
deleted file mode 100644
index 116acbd8c13..00000000000
--- a/tests/language_2/deferred/prefix_constraints_lib.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-foo() => 24;
diff --git a/tests/language_2/deferred/prefix_constraints_lib2.dart b/tests/language_2/deferred/prefix_constraints_lib2.dart
deleted file mode 100644
index 116acbd8c13..00000000000
--- a/tests/language_2/deferred/prefix_constraints_lib2.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-foo() => 24;
diff --git a/tests/language_2/deferred/prefix_importer_tree_shaken_deferred.dart b/tests/language_2/deferred/prefix_importer_tree_shaken_deferred.dart
deleted file mode 100644
index 1278e037c84..00000000000
--- a/tests/language_2/deferred/prefix_importer_tree_shaken_deferred.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@pragma("vm:never-inline")
-bar() {
-  return "bar";
-}
diff --git a/tests/language_2/deferred/prefix_importer_tree_shaken_immediate.dart b/tests/language_2/deferred/prefix_importer_tree_shaken_immediate.dart
deleted file mode 100644
index 966a5a3f263..00000000000
--- a/tests/language_2/deferred/prefix_importer_tree_shaken_immediate.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "prefix_importer_tree_shaken_deferred.dart" deferred as d;
-
-@pragma("vm:prefer-inline")
-load() => d.loadLibrary();
-
-@pragma("vm:prefer-inline")
-foo() => d.bar();
diff --git a/tests/language_2/deferred/prefix_importer_tree_shaken_test.dart b/tests/language_2/deferred/prefix_importer_tree_shaken_test.dart
deleted file mode 100644
index 48c2ec1468e..00000000000
--- a/tests/language_2/deferred/prefix_importer_tree_shaken_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// VMOptions=--dwarf_stack_traces=true
-/// VMOptions=--dwarf_stack_traces=false
-
-import "prefix_importer_tree_shaken_immediate.dart" as i;
-
-main() async {
-  await i.load();
-  print(await i.foo());
-}
diff --git a/tests/language_2/deferred/redirecting_factory_lib1.dart b/tests/language_2/deferred/redirecting_factory_lib1.dart
deleted file mode 100644
index 18f775151ad..00000000000
--- a/tests/language_2/deferred/redirecting_factory_lib1.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib1;
-
-import "redirecting_factory_lib2.dart" deferred as lib2;
-import "redirecting_factory_test.dart" as main;
-
-loadLib2() {
-  return lib2.loadLibrary();
-}
-
-class C extends main.C {
-  String get foo => "lib1";
-  C();
-  factory C.a() = lib2.C;
-}
diff --git a/tests/language_2/deferred/redirecting_factory_lib2.dart b/tests/language_2/deferred/redirecting_factory_lib2.dart
deleted file mode 100644
index 94536d7631d..00000000000
--- a/tests/language_2/deferred/redirecting_factory_lib2.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib2;
-
-import "redirecting_factory_lib1.dart" as lib1;
-
-class C extends lib1.C {
-  String get foo => "lib2";
-}
diff --git a/tests/language_2/deferred/redirecting_factory_test.dart b/tests/language_2/deferred/redirecting_factory_test.dart
deleted file mode 100644
index 2c8b449e0e8..00000000000
--- a/tests/language_2/deferred/redirecting_factory_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-library main;
-
-import "redirecting_factory_lib1.dart" deferred as lib1;
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-class C {
-  String get foo => "main";
-  C();
-  factory C.a() = lib1.C;
-  factory C.b() = lib1.C.a;
-}
-
-test1() async {
-  Expect.throws(() {
-    new C.a();
-  });
-  Expect.throws(() {
-    new C.b();
-  });
-}
-
-test2() async {
-  await lib1.loadLibrary();
-  Expect.equals("lib1", new C.a().foo);
-  Expect.throws(() {
-    new C.b();
-  });
-}
-
-test3() async {
-  await lib1.loadLibrary();
-  await lib1.loadLib2();
-  Expect.equals("lib1", new C.a().foo);
-  Expect.equals("lib2", new C.b().foo);
-}
-
-test() async {
-  await test1();
-  await test2();
-  await test3();
-}
-
-void main() {
-  asyncStart();
-  test().then((_) => asyncEnd());
-}
diff --git a/tests/language_2/deferred/regression_22995_lib.dart b/tests/language_2/deferred/regression_22995_lib.dart
deleted file mode 100644
index c4e7e928b84..00000000000
--- a/tests/language_2/deferred/regression_22995_lib.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'regression_22995_test.dart';
-
-foofoo() {
-  new A();
-  new B();
-  new C();
-}
diff --git a/tests/language_2/deferred/regression_22995_test.dart b/tests/language_2/deferred/regression_22995_test.dart
deleted file mode 100644
index ca831d1efa9..00000000000
--- a/tests/language_2/deferred/regression_22995_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that closurizing a function implies a dependency on its type.
-
-import "package:expect/expect.dart";
-
-import 'regression_22995_lib.dart' deferred as lib;
-
-class A {}
-
-class B {}
-
-class C {}
-
-typedef Ti(int x);
-typedef TB(B x);
-typedef TTi(Ti x);
-typedef Tg<T>(T x);
-
-class T {
-  fA(A a) => null;
-  fTB(TB a) => null;
-  fTgC(Tg<C> a) => null;
-}
-
-main() {
-  Expect.isFalse(new T().fA is Ti);
-  Expect.isFalse(new T().fTB is TTi);
-  Expect.isFalse(new T().fTgC is TTi);
-  lib.loadLibrary().then((_) {
-    lib.foofoo();
-  });
-}
diff --git a/tests/language_2/deferred/regression_28678_lib.dart b/tests/language_2/deferred/regression_28678_lib.dart
deleted file mode 100644
index 7c13077cd7c..00000000000
--- a/tests/language_2/deferred/regression_28678_lib.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-var v;
-
-class Clazz {}
diff --git a/tests/language_2/deferred/regression_28678_test.dart b/tests/language_2/deferred/regression_28678_test.dart
deleted file mode 100644
index 7790ccaeedb..00000000000
--- a/tests/language_2/deferred/regression_28678_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that await after deferred loading works as expected.
-
-import 'dart:async';
-import "package:expect/expect.dart";
-import 'regression_28678_lib.dart' deferred as lib;
-
-class A {
-  m() => "here";
-}
-
-f(a, b) => new Future.microtask(() {});
-
-class R {
-  Future test_deferred() async {
-    var a = new A();
-    await lib.loadLibrary();
-    await f(lib.Clazz, lib.v);
-    Expect.equals("here", a.m());
-  }
-}
-
-main() async {
-  await new R().test_deferred();
-}
diff --git a/tests/language_2/deferred/shadow_load_library_lib.dart b/tests/language_2/deferred/shadow_load_library_lib.dart
deleted file mode 100644
index f29d4cc8e7c..00000000000
--- a/tests/language_2/deferred/shadow_load_library_lib.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-loadLibrary() => 42;
-
-var trueVar = true;
diff --git a/tests/language_2/deferred/shadow_load_library_test.dart b/tests/language_2/deferred/shadow_load_library_test.dart
deleted file mode 100644
index 3cc1dfcdc15..00000000000
--- a/tests/language_2/deferred/shadow_load_library_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-// This library contains a member loadLibrary.
-// Check that we shadow this member.
-import "shadow_load_library_lib.dart" deferred as lib;
-
-void main() {
-  var x = lib.loadLibrary();
-  Expect.isTrue(x is Future);
-  asyncStart();
-  x.then((_) {
-    Expect.isTrue(lib.trueVar);
-    // Check that shadowing still is in place after loading the library.
-    Expect.isTrue(lib.loadLibrary() is Future);
-    asyncEnd();
-  });
-}
diff --git a/tests/language_2/deferred/shared_and_unshared_classes_lib1.dart b/tests/language_2/deferred/shared_and_unshared_classes_lib1.dart
deleted file mode 100644
index f62c0fc0ddf..00000000000
--- a/tests/language_2/deferred/shared_and_unshared_classes_lib1.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib1;
-
-import "shared_and_unshared_classes_lib_shared.dart";
-
-foo() {
-  print(new C1());
-  print(new CShared());
-}
diff --git a/tests/language_2/deferred/shared_and_unshared_classes_lib2.dart b/tests/language_2/deferred/shared_and_unshared_classes_lib2.dart
deleted file mode 100644
index 3d99dc67bbd..00000000000
--- a/tests/language_2/deferred/shared_and_unshared_classes_lib2.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib2;
-
-import "shared_and_unshared_classes_lib_shared.dart";
-
-foo() {
-  print(new C2());
-  print(new CShared());
-}
diff --git a/tests/language_2/deferred/shared_and_unshared_classes_lib_shared.dart b/tests/language_2/deferred/shared_and_unshared_classes_lib_shared.dart
deleted file mode 100644
index a8bbf913f76..00000000000
--- a/tests/language_2/deferred/shared_and_unshared_classes_lib_shared.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library shared;
-
-class CShared {
-  toString() => "shared";
-}
-
-class C1 {
-  toString() => "C1";
-}
-
-class C2 {
-  toString() => "C2";
-}
diff --git a/tests/language_2/deferred/shared_and_unshared_classes_test.dart b/tests/language_2/deferred/shared_and_unshared_classes_test.dart
deleted file mode 100644
index ef2e5805a97..00000000000
--- a/tests/language_2/deferred/shared_and_unshared_classes_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=
-// VMOptions=--dwarf_stack_traces --no-retain_function_objects --no-retain_code_objects
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-import "shared_and_unshared_classes_lib1.dart" deferred as lib1;
-import "shared_and_unshared_classes_lib2.dart" deferred as lib2;
-import "dart:async";
-
-void main() {
-  asyncTest(() {
-    return Future.wait([
-      lib1.loadLibrary().then((_) {
-        lib1.foo();
-      }),
-      lib2.loadLibrary().then((_) {
-        lib2.foo();
-      })
-    ]);
-  });
-}
diff --git a/tests/language_2/deferred/split_constants_canonicalization_a.dart b/tests/language_2/deferred/split_constants_canonicalization_a.dart
deleted file mode 100644
index 4f732d66237..00000000000
--- a/tests/language_2/deferred/split_constants_canonicalization_a.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "split_constants_canonicalization_a_1.dart" deferred as a_1;
-import "split_constants_canonicalization_a_2.dart" deferred as a_2;
-
-loadChildren() async {
-  await a_1.loadLibrary();
-  await a_2.loadLibrary();
-}
-
-a_1_mint() => a_1.mint();
-a_1_string() => a_1.string();
-a_1_list() => a_1.list();
-a_1_map() => a_1.map();
-a_1_box() => a_1.box();
-a_1_enum() => a_1.enumm();
-a_1_type() => a_1.type();
-a_1_closure() => a_1.closure();
-
-a_2_mint() => a_2.mint();
-a_2_string() => a_2.string();
-a_2_list() => a_2.list();
-a_2_map() => a_2.map();
-a_2_box() => a_2.box();
-a_2_enum() => a_2.enumm();
-a_2_type() => a_2.type();
-a_2_closure() => a_2.closure();
diff --git a/tests/language_2/deferred/split_constants_canonicalization_a_1.dart b/tests/language_2/deferred/split_constants_canonicalization_a_1.dart
deleted file mode 100644
index 04157bbfa97..00000000000
--- a/tests/language_2/deferred/split_constants_canonicalization_a_1.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "split_constants_canonicalization_test.dart";
-
-@pragma("vm:never-inline")
-mint() => 0x7FFFFFFFFFFFF000; // Boxed 64-bit integer on VM.
-
-@pragma("vm:never-inline")
-string() => "We all have identical strings";
-
-@pragma("vm:never-inline")
-list() => const <String>["We all have identical lists"];
-
-@pragma("vm:never-inline")
-map() => const <String, String>{"We all have": "identical maps"};
-
-@pragma("vm:never-inline")
-box() => const Box("We all have identical boxes");
-
-@pragma("vm:never-inline")
-enumm() => Enum.GREEN;
-
-@pragma("vm:never-inline")
-type() => Box;
-
-@pragma("vm:never-inline")
-closure() => commonClosure;
diff --git a/tests/language_2/deferred/split_constants_canonicalization_a_2.dart b/tests/language_2/deferred/split_constants_canonicalization_a_2.dart
deleted file mode 100644
index 89b9d83870b..00000000000
--- a/tests/language_2/deferred/split_constants_canonicalization_a_2.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "split_constants_canonicalization_test.dart";
-
-@pragma("vm:never-inline")
-mint() => 0x7FFFFFFFFFFFF000;
-
-@pragma("vm:never-inline")
-string() => "We all have identical strings";
-
-@pragma("vm:never-inline")
-list() => const <String>["We all have identical lists"];
-
-@pragma("vm:never-inline")
-map() => const <String, String>{"We all have": "identical maps"};
-
-@pragma("vm:never-inline")
-box() => const Box("We all have identical boxes");
-
-@pragma("vm:never-inline")
-enumm() => Enum.GREEN;
-
-@pragma("vm:never-inline")
-type() => Box;
-
-@pragma("vm:never-inline")
-closure() => commonClosure;
diff --git a/tests/language_2/deferred/split_constants_canonicalization_b.dart b/tests/language_2/deferred/split_constants_canonicalization_b.dart
deleted file mode 100644
index 4a901301953..00000000000
--- a/tests/language_2/deferred/split_constants_canonicalization_b.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "split_constants_canonicalization_b_1.dart" deferred as b_1;
-import "split_constants_canonicalization_b_2.dart" deferred as b_2;
-
-loadChildren() async {
-  await b_1.loadLibrary();
-  await b_2.loadLibrary();
-}
-
-b_1_mint() => b_1.mint();
-b_1_string() => b_1.string();
-b_1_list() => b_1.list();
-b_1_map() => b_1.map();
-b_1_box() => b_1.box();
-b_1_enum() => b_1.enumm();
-b_1_type() => b_1.type();
-b_1_closure() => b_1.closure();
-
-b_2_mint() => b_2.mint();
-b_2_string() => b_2.string();
-b_2_list() => b_2.list();
-b_2_map() => b_2.map();
-b_2_box() => b_2.box();
-b_2_enum() => b_2.enumm();
-b_2_type() => b_2.type();
-b_2_closure() => b_2.closure();
diff --git a/tests/language_2/deferred/split_constants_canonicalization_b_1.dart b/tests/language_2/deferred/split_constants_canonicalization_b_1.dart
deleted file mode 100644
index 89b9d83870b..00000000000
--- a/tests/language_2/deferred/split_constants_canonicalization_b_1.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "split_constants_canonicalization_test.dart";
-
-@pragma("vm:never-inline")
-mint() => 0x7FFFFFFFFFFFF000;
-
-@pragma("vm:never-inline")
-string() => "We all have identical strings";
-
-@pragma("vm:never-inline")
-list() => const <String>["We all have identical lists"];
-
-@pragma("vm:never-inline")
-map() => const <String, String>{"We all have": "identical maps"};
-
-@pragma("vm:never-inline")
-box() => const Box("We all have identical boxes");
-
-@pragma("vm:never-inline")
-enumm() => Enum.GREEN;
-
-@pragma("vm:never-inline")
-type() => Box;
-
-@pragma("vm:never-inline")
-closure() => commonClosure;
diff --git a/tests/language_2/deferred/split_constants_canonicalization_b_2.dart b/tests/language_2/deferred/split_constants_canonicalization_b_2.dart
deleted file mode 100644
index 89b9d83870b..00000000000
--- a/tests/language_2/deferred/split_constants_canonicalization_b_2.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "split_constants_canonicalization_test.dart";
-
-@pragma("vm:never-inline")
-mint() => 0x7FFFFFFFFFFFF000;
-
-@pragma("vm:never-inline")
-string() => "We all have identical strings";
-
-@pragma("vm:never-inline")
-list() => const <String>["We all have identical lists"];
-
-@pragma("vm:never-inline")
-map() => const <String, String>{"We all have": "identical maps"};
-
-@pragma("vm:never-inline")
-box() => const Box("We all have identical boxes");
-
-@pragma("vm:never-inline")
-enumm() => Enum.GREEN;
-
-@pragma("vm:never-inline")
-type() => Box;
-
-@pragma("vm:never-inline")
-closure() => commonClosure;
diff --git a/tests/language_2/deferred/split_constants_canonicalization_test.dart b/tests/language_2/deferred/split_constants_canonicalization_test.dart
deleted file mode 100644
index a13d2ffdbdb..00000000000
--- a/tests/language_2/deferred/split_constants_canonicalization_test.dart
+++ /dev/null
@@ -1,93 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "split_constants_canonicalization_a.dart" deferred as a;
-import "split_constants_canonicalization_b.dart" deferred as b;
-
-class Box {
-  final contents;
-  const Box(this.contents);
-}
-
-enum Enum {
-  RED,
-  GREEN,
-  BLUE,
-}
-
-commonClosure() {}
-
-main() async {
-  await a.loadLibrary();
-  await a.loadChildren();
-  await b.loadLibrary();
-  await b.loadChildren();
-
-  var a_1_mint = await a.a_1_mint();
-  var a_2_mint = await a.a_2_mint();
-  var b_1_mint = await b.b_1_mint();
-  var b_2_mint = await b.b_2_mint();
-  Expect.isTrue(identical(a_1_mint, a_2_mint));
-  Expect.isTrue(identical(a_1_mint, b_1_mint));
-  Expect.isTrue(identical(a_1_mint, b_2_mint));
-
-  var a_1_string = await a.a_1_string();
-  var a_2_string = await a.a_2_string();
-  var b_1_string = await b.b_1_string();
-  var b_2_string = await b.b_2_string();
-  Expect.isTrue(identical(a_1_string, a_2_string));
-  Expect.isTrue(identical(a_1_string, b_1_string));
-  Expect.isTrue(identical(a_1_string, b_2_string));
-
-  var a_1_list = await a.a_1_list();
-  var a_2_list = await a.a_2_list();
-  var b_1_list = await b.b_1_list();
-  var b_2_list = await b.b_2_list();
-  Expect.isTrue(identical(a_1_list, a_2_list));
-  Expect.isTrue(identical(a_1_list, b_1_list));
-  Expect.isTrue(identical(a_1_list, b_2_list));
-
-  var a_1_map = await a.a_1_map();
-  var a_2_map = await a.a_2_map();
-  var b_1_map = await b.b_1_map();
-  var b_2_map = await b.b_2_map();
-  Expect.isTrue(identical(a_1_map, a_2_map));
-  Expect.isTrue(identical(a_1_map, b_1_map));
-  Expect.isTrue(identical(a_1_map, b_2_map));
-
-  var a_1_box = await a.a_1_box();
-  var a_2_box = await a.a_2_box();
-  var b_1_box = await b.b_1_box();
-  var b_2_box = await b.b_2_box();
-  Expect.isTrue(identical(a_1_box, a_2_box));
-  Expect.isTrue(identical(a_1_box, b_1_box));
-  Expect.isTrue(identical(a_1_box, b_2_box));
-
-  var a_1_enum = await a.a_1_enum();
-  var a_2_enum = await a.a_2_enum();
-  var b_1_enum = await b.b_1_enum();
-  var b_2_enum = await b.b_2_enum();
-  Expect.isTrue(identical(a_1_enum, a_2_enum));
-  Expect.isTrue(identical(a_1_enum, b_1_enum));
-  Expect.isTrue(identical(a_1_enum, b_2_enum));
-
-  var a_1_type = await a.a_1_type();
-  var a_2_type = await a.a_2_type();
-  var b_1_type = await b.b_1_type();
-  var b_2_type = await b.b_2_type();
-  Expect.isTrue(identical(a_1_type, a_2_type));
-  Expect.isTrue(identical(a_1_type, b_1_type));
-  Expect.isTrue(identical(a_1_type, b_2_type));
-
-  var a_1_closure = await a.a_1_closure();
-  var a_2_closure = await a.a_2_closure();
-  var b_1_closure = await b.b_1_closure();
-  var b_2_closure = await b.b_2_closure();
-  Expect.isTrue(identical(a_1_closure, a_2_closure));
-  Expect.isTrue(identical(a_1_closure, b_1_closure));
-  Expect.isTrue(identical(a_1_closure, b_2_closure));
-}
diff --git a/tests/language_2/deferred/static_separate_lib1.dart b/tests/language_2/deferred/static_separate_lib1.dart
deleted file mode 100644
index c126d4f0b64..00000000000
--- a/tests/language_2/deferred/static_separate_lib1.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib1;
-
-class ConstClass {
-  final x;
-  const ConstClass(this.x);
-}
-
-var x = const ConstClass(const ConstClass(1));
-
-class C {
-  static foo() {
-    () {}(); // Hack to avoid inlining.
-    return 1;
-  }
-
-  bar() {
-    () {}(); // Hack to avoid inlining.
-    return 1;
-  }
-}
-
-class C1 {
-  static var foo = const {};
-  var bar = const {};
-}
-
-class C2 {
-  static var foo = new Map<int, int>.from({1: 2});
-  var bar = new Map<int, int>.from({1: 2});
-}
-
-class C3 {
-  static final foo = const ConstClass(const ConstClass(1));
-  final bar = const ConstClass(const ConstClass(1));
-}
-
-class C4 {
-  static final foo = new Map<ConstClass, ConstClass>.from({x: x});
-  final bar = new Map<ConstClass, ConstClass>.from({x: x});
-}
-
-class C5 {
-  static const foo = const [
-    const {1: 3}
-  ];
-  bar() {
-    () {}(); // Hack to avoid inlining.
-    return 1;
-  }
-}
diff --git a/tests/language_2/deferred/static_separate_lib2.dart b/tests/language_2/deferred/static_separate_lib2.dart
deleted file mode 100644
index c0d137706e0..00000000000
--- a/tests/language_2/deferred/static_separate_lib2.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib2;
-
-import "package:expect/expect.dart";
-import "static_separate_lib1.dart";
-
-foo() {
-  Expect.equals(1, C.foo());
-  Expect.mapEquals({}, C1.foo);
-
-  Expect.mapEquals({1: 2}, C2.foo);
-  C2.foo = {1: 2};
-  Expect.mapEquals({1: 2}, C2.foo);
-
-  Expect.equals(x, C3.foo);
-  Expect.mapEquals({x: x}, C4.foo);
-  Expect.listEquals([
-    const {1: 3}
-  ], C5.foo);
-}
diff --git a/tests/language_2/deferred/static_separate_test.dart b/tests/language_2/deferred/static_separate_test.dart
deleted file mode 100644
index 366c61bca1d..00000000000
--- a/tests/language_2/deferred/static_separate_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// The class lib1.C is referenced via lib1
-// The static function lib1.C.foo is referenced via lib2
-// Dart2js will put them in separate hunks.
-// Similarly for C2, ..., C5.
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-import "static_separate_lib1.dart" deferred as lib1;
-import "static_separate_lib2.dart" deferred as lib2;
-
-void main() {
-  asyncStart();
-  Expect.throws(() => new lib1.C());
-  lib1.loadLibrary().then((_) {
-    lib2.loadLibrary().then((_) {
-      print("HERE");
-      Expect.equals(1, new lib1.C().bar());
-      var x = new lib1.C2();
-      Expect.mapEquals({1: 2}, x.bar);
-      x.bar = {2: 3};
-      Expect.mapEquals({2: 3}, x.bar);
-
-      Expect.equals(lib1.x, new lib1.C3().bar);
-      Expect.mapEquals({lib1.x: lib1.x}, new lib1.C4().bar);
-      Expect.equals(1, new lib1.C5().bar());
-
-      lib2.foo();
-      asyncEnd();
-    });
-  });
-}
diff --git a/tests/language_2/deferred/super_dependency_lib.dart b/tests/language_2/deferred/super_dependency_lib.dart
deleted file mode 100644
index 3d1f2da69d8..00000000000
--- a/tests/language_2/deferred/super_dependency_lib.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {}
-
-class C extends A {
-  foo() {
-    super.foo = 3;
-  }
-}
diff --git a/tests/language_2/deferred/super_dependency_runtime_test.dart b/tests/language_2/deferred/super_dependency_runtime_test.dart
deleted file mode 100644
index f106998cf04..00000000000
--- a/tests/language_2/deferred/super_dependency_runtime_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Regression test.
-// lib.C.foo has code that references `super.foo=` that does not exist. This
-// used to cause a crash.
-
-import "package:expect/expect.dart";
-
-
-main() async {
-
-
-}
diff --git a/tests/language_2/deferred/super_dependency_test.dart b/tests/language_2/deferred/super_dependency_test.dart
deleted file mode 100644
index 73ebf0d53f6..00000000000
--- a/tests/language_2/deferred/super_dependency_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test.
-// lib.C.foo has code that references `super.foo=` that does not exist. This
-// used to cause a crash.
-
-import "package:expect/expect.dart";
-//        ^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_SUPER_MEMBER
-// [cfe] Superclass has no setter named 'foo'.
-import "super_dependency_lib.dart" deferred as lib;
-
-main() async {
-  await lib.loadLibrary();
-  Expect.throwsNoSuchMethodError(() => new lib.C().foo());
-}
diff --git a/tests/language_2/deferred/type_dependency_lib1.dart b/tests/language_2/deferred/type_dependency_lib1.dart
deleted file mode 100644
index 36a06ef2763..00000000000
--- a/tests/language_2/deferred/type_dependency_lib1.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2015, the Dart Team. All rights reserved. Use of this
-// source code is governed by a BSD-style license that can be found in
-// the LICENSE file.
-
-// @dart = 2.9
-
-library lib1;
-
-import "type_dependency_lib3.dart";
-
-bool fooIs(x) {
-  return x is A;
-}
-
-bool fooAs(x) {
-  try {
-    return (x as A).p;
-  } on TypeError {
-    return false;
-  }
-}
-
-bool fooAnnotation(x) {
-  try {
-    A y = x;
-    return y is! String;
-  } on TypeError {
-    return false;
-  }
-}
diff --git a/tests/language_2/deferred/type_dependency_lib2.dart b/tests/language_2/deferred/type_dependency_lib2.dart
deleted file mode 100644
index 3d4cb789781..00000000000
--- a/tests/language_2/deferred/type_dependency_lib2.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2015, the Dart Team. All rights reserved. Use of this
-// source code is governed by a BSD-style license that can be found in
-// the LICENSE file.
-
-// @dart = 2.9
-
-library lib2;
-
-import "type_dependency_lib3.dart";
-
-getInstance() {
-  return new A();
-}
diff --git a/tests/language_2/deferred/type_dependency_lib3.dart b/tests/language_2/deferred/type_dependency_lib3.dart
deleted file mode 100644
index 29e229a2ea7..00000000000
--- a/tests/language_2/deferred/type_dependency_lib3.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib3;
-
-class A {
-  var p = true;
-}
diff --git a/tests/language_2/deferred/type_dependency_test.dart b/tests/language_2/deferred/type_dependency_test.dart
deleted file mode 100644
index 7b73bd040c1..00000000000
--- a/tests/language_2/deferred/type_dependency_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2015, the Dart Team. All rights reserved. Use of this
-// source code is governed by a BSD-style license that can be found in
-// the LICENSE file.
-
-// @dart = 2.9
-
-/// Checks that lib1.fooX's dependencies on [A] via is-checks, as-expressions
-/// and type-annotations(in checked-mode) is correctly tracked.
-
-import "type_dependency_lib1.dart" deferred as lib1;
-import "type_dependency_lib2.dart" deferred as lib2;
-import "package:expect/expect.dart";
-
-main() async {
-  await lib1.loadLibrary();
-  // Split the cases into a multi-test to test each feature separately.
-  Expect.isFalse(
-      lib1.fooIs //# is: ok
-      lib1.fooAs //# as: ok
-      lib1.fooAnnotation //# type_annotation: ok
-      ("string")
-      is! String //# none: ok
-      );
-  await lib2.loadLibrary();
-  Expect.isTrue(
-      lib1.fooIs //# is: ok
-      lib1.fooAs //# as: ok
-      lib1.fooAnnotation //# type_annotation: ok
-      (lib2.getInstance())
-      is! String //# none: ok
-      );
-}
diff --git a/tests/language_2/deferred/unreachable_loading_unit_deferred.dart b/tests/language_2/deferred/unreachable_loading_unit_deferred.dart
deleted file mode 100644
index cec6f71a276..00000000000
--- a/tests/language_2/deferred/unreachable_loading_unit_deferred.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-foo() {
-  print("Foo");
-}
diff --git a/tests/language_2/deferred/unreachable_loading_unit_immediate.dart b/tests/language_2/deferred/unreachable_loading_unit_immediate.dart
deleted file mode 100644
index 2b87a9f3e4a..00000000000
--- a/tests/language_2/deferred/unreachable_loading_unit_immediate.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "unreachable_loading_unit_deferred.dart" deferred as lib;
-
-unreachable() async {
-  await lib.loadLibrary();
-  lib.foo();
-}
diff --git a/tests/language_2/deferred/unreachable_loading_unit_test.dart b/tests/language_2/deferred/unreachable_loading_unit_test.dart
deleted file mode 100644
index ebd82b36784..00000000000
--- a/tests/language_2/deferred/unreachable_loading_unit_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "unreachable_loading_unit_immediate.dart";
-
-main() {
-  print("Okay");
-}
diff --git a/tests/language_2/double/comparison_test.dart b/tests/language_2/double/comparison_test.dart
deleted file mode 100644
index 13727946725..00000000000
--- a/tests/language_2/double/comparison_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Tests VM optimizing compiler negate condition for doubles (bug 5376516).
-
-// @dart = 2.9
-
-loop() {
-  for (double d = 0.0; d < 1100.0; d++) {}
-  for (double d = 0.0; d <= 1100.0; d++) {}
-  for (double d = 1000.0; d > 0.0; d--) {}
-  for (double d = 1000.0; d >= 0.0; d--) {}
-}
-
-main() {
-  loop();
-  loop();
-}
diff --git a/tests/language_2/double/identical_test.dart b/tests/language_2/double/identical_test.dart
deleted file mode 100644
index 2a2e33aa379..00000000000
--- a/tests/language_2/double/identical_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.isTrue(identical(42.0, 42.0));
-  Expect.isTrue(identical(-0.0, -0.0));
-  Expect.isTrue(identical(0.0, 0.0));
-  Expect.isTrue(identical(1.234E9, 1.234E9));
-  Expect.isFalse(identical(0.0, -0.0));
-  Expect.isTrue(identical(double.nan, double.nan));
-}
diff --git a/tests/language_2/double/int_addition_test.dart b/tests/language_2/double/int_addition_test.dart
deleted file mode 100644
index b0cbe34a72d..00000000000
--- a/tests/language_2/double/int_addition_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that optimized code does not silently convert integers to doubles.
-
-main() {
-  // Optimize add-op
-  for (int i = 0; i < 20; i++) {
-    addOp(1.1, 2.1);
-  }
-
-  Expect.isTrue(addOp(1.1, 2.1) is double);
-  Expect.isTrue(addOp(1, 2) is int);
-}
-
-addOp(a, b) => a + b;
diff --git a/tests/language_2/double/int_to_string_test.dart b/tests/language_2/double/int_to_string_test.dart
deleted file mode 100644
index fb8ca5c02dd..00000000000
--- a/tests/language_2/double/int_to_string_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test basic integer operations.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.equals("0.0", (0.0).toString());
-  Expect.equals("9.0", (9.0).toString());
-  Expect.equals("90.0", (90.0).toString());
-  Expect.equals(
-      "111111111111111110000.0", (111111111111111111111.0).toString());
-  Expect.equals("-9.0", (-9.0).toString());
-  Expect.equals("-90.0", (-90.0).toString());
-  Expect.equals(
-      "-111111111111111110000.0", (-111111111111111111111.0).toString());
-  Expect.equals("1000.0", (1000.0).toString());
-  Expect.equals("1000000000000000100.0", (1000000000000000128.0).toString());
-}
diff --git a/tests/language_2/double/invalid_runtime_test.dart b/tests/language_2/double/invalid_runtime_test.dart
deleted file mode 100644
index 273a9eb183c..00000000000
--- a/tests/language_2/double/invalid_runtime_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test an invalid double format
-
-main() {
-
-  ;
-}
diff --git a/tests/language_2/double/invalid_test.dart b/tests/language_2/double/invalid_test.dart
deleted file mode 100644
index bdea746a9df..00000000000
--- a/tests/language_2/double/invalid_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test an invalid double format
-
-main() {
-  3457e
-//^
-// [cfe] Numbers in exponential notation should always contain an exponent (an integer number with an optional sign).
-//    ^
-// [analyzer] SYNTACTIC_ERROR.MISSING_DIGIT
-  ;
-}
diff --git a/tests/language_2/double/modulo_test.dart b/tests/language_2/double/modulo_test.dart
deleted file mode 100644
index af08942555e..00000000000
--- a/tests/language_2/double/modulo_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test optimization of modulo operator on Double.
-// VMOptions=--optimization-counter-threshold=10
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  double k = -0.33333;
-  double firstResPos = doMod(k, 1.0);
-  double firstResNeg = doMod(k, -1.0);
-  for (int i = 0; i < 20; i++) {
-    Expect.equals(firstResPos, doMod(k, 1.0));
-    Expect.equals(firstResNeg, doMod(k, -1.0));
-  }
-}
-
-doMod(a, b) => a % b;
diff --git a/tests/language_2/double/nan_comparison_test.dart b/tests/language_2/double/nan_comparison_test.dart
deleted file mode 100644
index 61b9a5d73e5..00000000000
--- a/tests/language_2/double/nan_comparison_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Tests double comparisons with NaN in different contexts.
-// VMOptions=--optimization-counter-threshold=10
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-test_expr(a, b) => a != b;
-
-test_conditional(a, b) => a != b ? true : false;
-
-test_branch(a, b) {
-  if (a != b) {
-    return true;
-  }
-  return false;
-}
-
-main() {
-  Expect.equals(true, test_expr(0.5, double.nan));
-  for (var i = 0; i < 20; i++) test_expr(0.5, double.nan);
-  Expect.equals(true, test_expr(0.5, double.nan));
-
-  Expect.equals(true, test_conditional(0.5, double.nan));
-  for (var i = 0; i < 20; i++) test_conditional(0.5, double.nan);
-  Expect.equals(true, test_conditional(0.5, double.nan));
-
-  Expect.equals(true, test_branch(0.5, double.nan));
-  for (var i = 0; i < 20; i++) test_branch(0.5, double.nan);
-  Expect.equals(true, test_branch(0.5, double.nan));
-}
diff --git a/tests/language_2/double/to_string_as_exponential2_runtime_test.dart b/tests/language_2/double/to_string_as_exponential2_runtime_test.dart
deleted file mode 100644
index a9d1a1131e1..00000000000
--- a/tests/language_2/double/to_string_as_exponential2_runtime_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test basic integer operations.
-
-import "package:expect/expect.dart";
-
-main() {
-  var v = 1.0;
-  Expect.throwsRangeError(() => v.toStringAsExponential(-1));
-  Expect.throwsRangeError(() => v.toStringAsExponential(21));
-
-
-
-}
diff --git a/tests/language_2/double/to_string_as_exponential2_test.dart b/tests/language_2/double/to_string_as_exponential2_test.dart
deleted file mode 100644
index 4d72d122aef..00000000000
--- a/tests/language_2/double/to_string_as_exponential2_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test basic integer operations.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  var v = 1.0;
-  Expect.throwsRangeError(() => v.toStringAsExponential(-1));
-  Expect.throwsRangeError(() => v.toStringAsExponential(21));
-  v.toStringAsExponential(1.5);
-  //                      ^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] The argument type 'double' can't be assigned to the parameter type 'int'.
-  v.toStringAsExponential("string");
-  //                      ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] The argument type 'String' can't be assigned to the parameter type 'int'.
-  v.toStringAsExponential("3");
-  //                      ^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] The argument type 'String' can't be assigned to the parameter type 'int'.
-}
diff --git a/tests/language_2/double/to_string_as_exponential3_test.dart b/tests/language_2/double/to_string_as_exponential3_test.dart
deleted file mode 100644
index 97c38eea8dc..00000000000
--- a/tests/language_2/double/to_string_as_exponential3_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test basic integer operations.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.equals("1.00000000000000000000e+0", (1.0).toStringAsExponential(20));
-  Expect.equals("1.00000000000000005551e-1", (0.1).toStringAsExponential(20));
-  Expect.equals(1.00000000000000005551e-1, 0.1);
-}
diff --git a/tests/language_2/double/to_string_as_exponential_test.dart b/tests/language_2/double/to_string_as_exponential_test.dart
deleted file mode 100644
index ff24d4efe50..00000000000
--- a/tests/language_2/double/to_string_as_exponential_test.dart
+++ /dev/null
@@ -1,102 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test basic integer operations.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.equals("1e+0", (1.0).toStringAsExponential());
-  Expect.equals("1.1e+1", (11.0).toStringAsExponential());
-  Expect.equals("1.12e+2", (112.0).toStringAsExponential());
-  Expect.equals("1e+0", (1.0).toStringAsExponential(null));
-  Expect.equals("1.1e+1", (11.0).toStringAsExponential(null));
-  Expect.equals("1.12e+2", (112.0).toStringAsExponential(null));
-  Expect.equals("1e+0", (1.0).toStringAsExponential(0));
-  Expect.equals("1e+1", (11.0).toStringAsExponential(0));
-  Expect.equals("1e+2", (112.0).toStringAsExponential(0));
-  Expect.equals("1.0e+0", (1.0).toStringAsExponential(1));
-  Expect.equals("1.1e+1", (11.0).toStringAsExponential(1));
-  Expect.equals("1.1e+2", (112.0).toStringAsExponential(1));
-  Expect.equals("1.00e+0", (1.0).toStringAsExponential(2));
-  Expect.equals("1.10e+1", (11.0).toStringAsExponential(2));
-  Expect.equals("1.12e+2", (112.0).toStringAsExponential(2));
-  Expect.equals("1.000e+0", (1.0).toStringAsExponential(3));
-  Expect.equals("1.100e+1", (11.0).toStringAsExponential(3));
-  Expect.equals("1.120e+2", (112.0).toStringAsExponential(3));
-  Expect.equals("1e-1", (0.1).toStringAsExponential());
-  Expect.equals("1.1e-1", (0.11).toStringAsExponential());
-  Expect.equals("1.12e-1", (0.112).toStringAsExponential());
-  Expect.equals("1e-1", (0.1).toStringAsExponential(null));
-  Expect.equals("1.1e-1", (0.11).toStringAsExponential(null));
-  Expect.equals("1.12e-1", (0.112).toStringAsExponential(null));
-  Expect.equals("1e-1", (0.1).toStringAsExponential(0));
-  Expect.equals("1e-1", (0.11).toStringAsExponential(0));
-  Expect.equals("1e-1", (0.112).toStringAsExponential(0));
-  Expect.equals("1.0e-1", (0.1).toStringAsExponential(1));
-  Expect.equals("1.1e-1", (0.11).toStringAsExponential(1));
-  Expect.equals("1.1e-1", (0.112).toStringAsExponential(1));
-  Expect.equals("1.00e-1", (0.1).toStringAsExponential(2));
-  Expect.equals("1.10e-1", (0.11).toStringAsExponential(2));
-  Expect.equals("1.12e-1", (0.112).toStringAsExponential(2));
-  Expect.equals("1.000e-1", (0.1).toStringAsExponential(3));
-  Expect.equals("1.100e-1", (0.11).toStringAsExponential(3));
-  Expect.equals("1.120e-1", (0.112).toStringAsExponential(3));
-
-  Expect.equals("-0e+0", (-0.0).toStringAsExponential());
-  Expect.equals("-1e+0", (-1.0).toStringAsExponential());
-  Expect.equals("-1.1e+1", (-11.0).toStringAsExponential());
-  Expect.equals("-1.12e+2", (-112.0).toStringAsExponential());
-  Expect.equals("-0e+0", (-0.0).toStringAsExponential(null));
-  Expect.equals("-1e+0", (-1.0).toStringAsExponential(null));
-  Expect.equals("-1.1e+1", (-11.0).toStringAsExponential(null));
-  Expect.equals("-1.12e+2", (-112.0).toStringAsExponential(null));
-  Expect.equals("-1e+0", (-1.0).toStringAsExponential(0));
-  Expect.equals("-1e+1", (-11.0).toStringAsExponential(0));
-  Expect.equals("-1e+2", (-112.0).toStringAsExponential(0));
-  Expect.equals("-1.0e+0", (-1.0).toStringAsExponential(1));
-  Expect.equals("-1.1e+1", (-11.0).toStringAsExponential(1));
-  Expect.equals("-1.1e+2", (-112.0).toStringAsExponential(1));
-  Expect.equals("-1.00e+0", (-1.0).toStringAsExponential(2));
-  Expect.equals("-1.10e+1", (-11.0).toStringAsExponential(2));
-  Expect.equals("-1.12e+2", (-112.0).toStringAsExponential(2));
-  Expect.equals("-1.000e+0", (-1.0).toStringAsExponential(3));
-  Expect.equals("-1.100e+1", (-11.0).toStringAsExponential(3));
-  Expect.equals("-1.120e+2", (-112.0).toStringAsExponential(3));
-  Expect.equals("-1e-1", (-0.1).toStringAsExponential());
-  Expect.equals("-1.1e-1", (-0.11).toStringAsExponential());
-  Expect.equals("-1.12e-1", (-0.112).toStringAsExponential());
-  Expect.equals("-1e-1", (-0.1).toStringAsExponential(null));
-  Expect.equals("-1.1e-1", (-0.11).toStringAsExponential(null));
-  Expect.equals("-1.12e-1", (-0.112).toStringAsExponential(null));
-  Expect.equals("-1e-1", (-0.1).toStringAsExponential(0));
-  Expect.equals("-1e-1", (-0.11).toStringAsExponential(0));
-  Expect.equals("-1e-1", (-0.112).toStringAsExponential(0));
-  Expect.equals("-1.0e-1", (-0.1).toStringAsExponential(1));
-  Expect.equals("-1.1e-1", (-0.11).toStringAsExponential(1));
-  Expect.equals("-1.1e-1", (-0.112).toStringAsExponential(1));
-  Expect.equals("-1.00e-1", (-0.1).toStringAsExponential(2));
-  Expect.equals("-1.10e-1", (-0.11).toStringAsExponential(2));
-  Expect.equals("-1.12e-1", (-0.112).toStringAsExponential(2));
-  Expect.equals("-1.000e-1", (-0.1).toStringAsExponential(3));
-  Expect.equals("-1.100e-1", (-0.11).toStringAsExponential(3));
-  Expect.equals("-1.120e-1", (-0.112).toStringAsExponential(3));
-
-  Expect.equals("NaN", (double.nan).toStringAsExponential(2));
-  Expect.equals("Infinity", (double.infinity).toStringAsExponential(2));
-  Expect.equals("-Infinity", (-double.infinity).toStringAsExponential(2));
-  Expect.equals("1e+0", (1.0).toStringAsExponential(0));
-  Expect.equals("0e+0", (0.0).toStringAsExponential());
-  Expect.equals("0e+0", (0.0).toStringAsExponential(null));
-  Expect.equals("0.00e+0", (0.0).toStringAsExponential(2));
-  Expect.equals("1e+1", (11.2356).toStringAsExponential(0));
-  Expect.equals("1.1236e+1", (11.2356).toStringAsExponential(4));
-  Expect.equals("1.1236e-4", (0.000112356).toStringAsExponential(4));
-  Expect.equals("-1.1236e-4", (-0.000112356).toStringAsExponential(4));
-  Expect.equals("1.12356e-4", (0.000112356).toStringAsExponential());
-  Expect.equals("-1.12356e-4", (-0.000112356).toStringAsExponential());
-  Expect.equals("1.12356e-4", (0.000112356).toStringAsExponential(null));
-  Expect.equals("-1.12356e-4", (-0.000112356).toStringAsExponential(null));
-}
diff --git a/tests/language_2/double/to_string_as_fixed2_runtime_test.dart b/tests/language_2/double/to_string_as_fixed2_runtime_test.dart
deleted file mode 100644
index 08ea5b30bd4..00000000000
--- a/tests/language_2/double/to_string_as_fixed2_runtime_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test basic integer operations.
-
-import "package:expect/expect.dart";
-
-main() {
-  var v = 0.0;
-  Expect.throwsRangeError(() => v.toStringAsFixed(-1));
-  Expect.throwsRangeError(() => v.toStringAsFixed(21));
-  Expect.throwsArgumentError(() => v.toStringAsFixed(null));
-
-
-
-}
diff --git a/tests/language_2/double/to_string_as_fixed2_test.dart b/tests/language_2/double/to_string_as_fixed2_test.dart
deleted file mode 100644
index cd8feaeb3ac..00000000000
--- a/tests/language_2/double/to_string_as_fixed2_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test basic integer operations.
-
-// @dart = 2.9
-
-// [NNBD non-migrated]: This test has no language/ counterpart. The static
-// errors are just redundant tests of the static type system, and the runtime
-// errors are redundant with to_string_as_fixed2_runtime_test.dart.
-
-import "package:expect/expect.dart";
-
-main() {
-  var v = 0.0;
-  Expect.throwsRangeError(() => v.toStringAsFixed(-1));
-  Expect.throwsRangeError(() => v.toStringAsFixed(21));
-  Expect.throwsArgumentError(() => v.toStringAsFixed(null));
-  v.toStringAsFixed(1.5);
-  //                ^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] The argument type 'double' can't be assigned to the parameter type 'int'.
-  v.toStringAsFixed("string");
-  //                ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] The argument type 'String' can't be assigned to the parameter type 'int'.
-  v.toStringAsFixed("3");
-  //                ^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] The argument type 'String' can't be assigned to the parameter type 'int'.
-}
diff --git a/tests/language_2/double/to_string_as_fixed_test.dart b/tests/language_2/double/to_string_as_fixed_test.dart
deleted file mode 100644
index 0e57faf322c..00000000000
--- a/tests/language_2/double/to_string_as_fixed_test.dart
+++ /dev/null
@@ -1,106 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test basic integer operations.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class ToStringAsFixedTest {
-  static void testMain() {
-    Expect.equals("2.000", 2.0.toStringAsFixed(3));
-    Expect.equals("2.100", 2.1.toStringAsFixed(3));
-    Expect.equals("2.120", 2.12.toStringAsFixed(3));
-    Expect.equals("2.123", 2.123.toStringAsFixed(3));
-    Expect.equals("2.124", 2.1239.toStringAsFixed(3));
-    Expect.equals("NaN", (0.0 / 0.0).toStringAsFixed(3));
-    Expect.equals("Infinity", (1.0 / 0.0).toStringAsFixed(3));
-    Expect.equals("-Infinity", (-1.0 / 0.0).toStringAsFixed(3));
-    Expect.equals(
-        "1.1111111111111111e+21", 1111111111111111111111.0.toStringAsFixed(8));
-    Expect.equals("0.1", 0.1.toStringAsFixed(1));
-    Expect.equals("0.10", 0.1.toStringAsFixed(2));
-    Expect.equals("0.100", 0.1.toStringAsFixed(3));
-    Expect.equals("0.01", 0.01.toStringAsFixed(2));
-    Expect.equals("0.010", 0.01.toStringAsFixed(3));
-    Expect.equals("0.0100", 0.01.toStringAsFixed(4));
-    Expect.equals("0.00", 0.001.toStringAsFixed(2));
-    Expect.equals("0.001", 0.001.toStringAsFixed(3));
-    Expect.equals("0.0010", 0.001.toStringAsFixed(4));
-    Expect.equals("1.0000", 1.0.toStringAsFixed(4));
-    Expect.equals("1.0", 1.0.toStringAsFixed(1));
-    Expect.equals("1", 1.0.toStringAsFixed(0));
-    Expect.equals("12", 12.0.toStringAsFixed(0));
-    Expect.equals("1", 1.1.toStringAsFixed(0));
-    Expect.equals("12", 12.1.toStringAsFixed(0));
-    Expect.equals("1", 1.12.toStringAsFixed(0));
-    Expect.equals("12", 12.12.toStringAsFixed(0));
-    Expect.equals("0.0000006", 0.0000006.toStringAsFixed(7));
-    Expect.equals("0.00000006", 0.00000006.toStringAsFixed(8));
-    Expect.equals("0.000000060", 0.00000006.toStringAsFixed(9));
-    Expect.equals("0.0000000600", 0.00000006.toStringAsFixed(10));
-    Expect.equals("0", 0.0.toStringAsFixed(0));
-    Expect.equals("0.0", 0.0.toStringAsFixed(1));
-    Expect.equals("0.00", 0.0.toStringAsFixed(2));
-
-    Expect.equals("-0.1", (-0.1).toStringAsFixed(1));
-    Expect.equals("-0.10", (-0.1).toStringAsFixed(2));
-    Expect.equals("-0.100", (-0.1).toStringAsFixed(3));
-    Expect.equals("-0.01", (-0.01).toStringAsFixed(2));
-    Expect.equals("-0.010", (-0.01).toStringAsFixed(3));
-    Expect.equals("-0.0100", (-0.01).toStringAsFixed(4));
-    Expect.equals("-0.00", (-0.001).toStringAsFixed(2));
-    Expect.equals("-0.001", (-0.001).toStringAsFixed(3));
-    Expect.equals("-0.0010", (-0.001).toStringAsFixed(4));
-    Expect.equals("-1.0000", (-1.0).toStringAsFixed(4));
-    Expect.equals("-1.0", (-1.0).toStringAsFixed(1));
-    Expect.equals("-1", (-1.0).toStringAsFixed(0));
-    Expect.equals("-1", (-1.1).toStringAsFixed(0));
-    Expect.equals("-12", (-12.1).toStringAsFixed(0));
-    Expect.equals("-1", (-1.12).toStringAsFixed(0));
-    Expect.equals("-12", (-12.12).toStringAsFixed(0));
-    Expect.equals("-0.0000006", (-0.0000006).toStringAsFixed(7));
-    Expect.equals("-0.00000006", (-0.00000006).toStringAsFixed(8));
-    Expect.equals("-0.000000060", (-0.00000006).toStringAsFixed(9));
-    Expect.equals("-0.0000000600", (-0.00000006).toStringAsFixed(10));
-    Expect.equals("-0", (-0.0).toStringAsFixed(0));
-    Expect.equals("-0.0", (-0.0).toStringAsFixed(1));
-    Expect.equals("-0.00", (-0.0).toStringAsFixed(2));
-
-    Expect.equals("1000", 1000.0.toStringAsFixed(0));
-    Expect.equals("0", 0.00001.toStringAsFixed(0));
-    Expect.equals("0.00001", 0.00001.toStringAsFixed(5));
-    Expect.equals(
-        "0.00000000000000000010", 0.0000000000000000001.toStringAsFixed(20));
-    Expect.equals("0.00001000000000000", 0.00001.toStringAsFixed(17));
-    Expect.equals("1.00000000000000000", 1.0.toStringAsFixed(17));
-    Expect.equals(
-        "1000000000000000128", 1000000000000000128.0.toStringAsFixed(0));
-    Expect.equals(
-        "100000000000000128.0", 100000000000000128.0.toStringAsFixed(1));
-    Expect.equals(
-        "10000000000000128.00", 10000000000000128.0.toStringAsFixed(2));
-    Expect.equals("10000000000000128.00000000000000000000",
-        10000000000000128.0.toStringAsFixed(20));
-    Expect.equals("0", 0.0.toStringAsFixed(0));
-    Expect.equals("-42.000", (-42.0).toStringAsFixed(3));
-    Expect.equals(
-        "-1000000000000000128", (-1000000000000000128.0).toStringAsFixed(0));
-    Expect.equals("-0.00000000000000000010",
-        (-0.0000000000000000001).toStringAsFixed(20));
-    Expect.equals(
-        "0.12312312312312299889", 0.123123123123123.toStringAsFixed(20));
-    // Test that we round up even when the last digit generated is even.
-    // dtoa does not do this in its original form.
-    Expect.equals("1", 0.5.toStringAsFixed(0));
-    Expect.equals("-1", (-0.5).toStringAsFixed(0));
-    Expect.equals("1.3", 1.25.toStringAsFixed(1));
-    Expect.equals("234.2040", 234.20405.toStringAsFixed(4));
-    Expect.equals("234.2041", 234.2040506.toStringAsFixed(4));
-  }
-}
-
-main() {
-  ToStringAsFixedTest.testMain();
-}
diff --git a/tests/language_2/double/to_string_as_precision2_runtime_test.dart b/tests/language_2/double/to_string_as_precision2_runtime_test.dart
deleted file mode 100644
index a75802166b0..00000000000
--- a/tests/language_2/double/to_string_as_precision2_runtime_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test basic integer operations.
-
-import "package:expect/expect.dart";
-
-main() {
-  var v = 0.0;
-  Expect.throwsRangeError(() => v.toStringAsPrecision(0));
-  Expect.throwsRangeError(() => v.toStringAsPrecision(22));
-  Expect.throwsArgumentError(() => v.toStringAsPrecision(null));
-
-
-
-}
diff --git a/tests/language_2/double/to_string_as_precision2_test.dart b/tests/language_2/double/to_string_as_precision2_test.dart
deleted file mode 100644
index 2f56ce88d65..00000000000
--- a/tests/language_2/double/to_string_as_precision2_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test basic integer operations.
-
-// @dart = 2.9
-
-// [NNBD non-migrated]: This test has no language/ counterpart. The static
-// errors are just redundant tests of the static type system, and the runtime
-// errors are redundant with to_string_as_precision2_runtime_test.dart.
-
-import "package:expect/expect.dart";
-
-main() {
-  var v = 0.0;
-  Expect.throwsRangeError(() => v.toStringAsPrecision(0));
-  Expect.throwsRangeError(() => v.toStringAsPrecision(22));
-  Expect.throwsArgumentError(() => v.toStringAsPrecision(null));
-  v.toStringAsPrecision(1.5);
-  //                    ^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] The argument type 'double' can't be assigned to the parameter type 'int'.
-  v.toStringAsPrecision("string");
-  //                    ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] The argument type 'String' can't be assigned to the parameter type 'int'.
-  v.toStringAsPrecision("3");
-  //                    ^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] The argument type 'String' can't be assigned to the parameter type 'int'.
-}
diff --git a/tests/language_2/double/to_string_as_precision3_test.dart b/tests/language_2/double/to_string_as_precision3_test.dart
deleted file mode 100644
index 69a97a1eb0a..00000000000
--- a/tests/language_2/double/to_string_as_precision3_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test basic integer operations.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.equals(
-      "0.000555000000000000046248", (0.000555).toStringAsPrecision(21));
-  Expect.equals(0.000555000000000000046248, 0.000555);
-  Expect.equals(
-      "5.54999999999999980179e-7", (0.000000555).toStringAsPrecision(21));
-  Expect.equals(5.54999999999999980179e-7, 0.000000555);
-  Expect.equals(
-      "-5.54999999999999980179e-7", (-0.000000555).toStringAsPrecision(21));
-  Expect.equals(-5.54999999999999980179e-7, -0.000000555);
-}
diff --git a/tests/language_2/double/to_string_as_precision_test.dart b/tests/language_2/double/to_string_as_precision_test.dart
deleted file mode 100644
index d98ba66a678..00000000000
--- a/tests/language_2/double/to_string_as_precision_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test basic integer operations.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.equals("NaN", (double.nan).toStringAsPrecision(1));
-  Expect.equals("Infinity", (double.infinity).toStringAsPrecision(2));
-  Expect.equals("-Infinity", (-double.infinity).toStringAsPrecision(2));
-  Expect.equals("0.000555000000000000", (0.000555).toStringAsPrecision(15));
-  Expect.equals("5.55000000000000e-7", (0.000000555).toStringAsPrecision(15));
-  Expect.equals("-5.55000000000000e-7", (-0.000000555).toStringAsPrecision(15));
-  Expect.equals("1e+8", (123456789.0).toStringAsPrecision(1));
-  Expect.equals("123456789", (123456789.0).toStringAsPrecision(9));
-  Expect.equals("1.2345679e+8", (123456789.0).toStringAsPrecision(8));
-  Expect.equals("1.234568e+8", (123456789.0).toStringAsPrecision(7));
-  Expect.equals("-1.234568e+8", (-123456789.0).toStringAsPrecision(7));
-  Expect.equals("-1.2e-9", (-.0000000012345).toStringAsPrecision(2));
-  Expect.equals("-1.2e-8", (-.000000012345).toStringAsPrecision(2));
-  Expect.equals("-1.2e-7", (-.00000012345).toStringAsPrecision(2));
-  Expect.equals("-0.0000012", (-.0000012345).toStringAsPrecision(2));
-  Expect.equals("-0.000012", (-.000012345).toStringAsPrecision(2));
-  Expect.equals("-0.00012", (-.00012345).toStringAsPrecision(2));
-  Expect.equals("-0.0012", (-.0012345).toStringAsPrecision(2));
-  Expect.equals("-0.012", (-.012345).toStringAsPrecision(2));
-  Expect.equals("-0.12", (-.12345).toStringAsPrecision(2));
-  Expect.equals("-1.2", (-1.2345).toStringAsPrecision(2));
-  Expect.equals("-12", (-12.345).toStringAsPrecision(2));
-  Expect.equals("-1.2e+2", (-123.45).toStringAsPrecision(2));
-  Expect.equals("-1.2e+3", (-1234.5).toStringAsPrecision(2));
-  Expect.equals("-1.2e+4", (-12345.0).toStringAsPrecision(2));
-  Expect.equals("-1.235e+4", (-12345.67).toStringAsPrecision(4));
-  Expect.equals("-1.234e+4", (-12344.67).toStringAsPrecision(4));
-  Expect.equals("-0.0", (-0.0).toStringAsPrecision(2));
-  Expect.equals("-0", (-0.0).toStringAsPrecision(1));
-  // Test that we round up even when the last digit generated is even.
-  // dtoa does not do this in its original form.
-  Expect.equals("1.3", 1.25.toStringAsPrecision(2));
-  Expect.equals("1.4", 1.35.toStringAsPrecision(2));
-}
diff --git a/tests/language_2/double/to_string_test.dart b/tests/language_2/double/to_string_test.dart
deleted file mode 100644
index 04f1af93008..00000000000
--- a/tests/language_2/double/to_string_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test basic integer operations.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.equals("NaN", (double.nan).toString());
-  Expect.equals("Infinity", (1 / 0).toString());
-  Expect.equals("-Infinity", (-1 / 0).toString());
-  Expect.equals("90.12", (90.12).toString());
-  Expect.equals("0.1", (0.1).toString());
-  Expect.equals("0.01", (0.01).toString());
-  Expect.equals("0.0123", (0.0123).toString());
-  Expect.equals(
-      "1.1111111111111111e+21", (1111111111111111111111.0).toString());
-  Expect.equals(
-      "1.1111111111111111e+22", (11111111111111111111111.0).toString());
-  Expect.equals("0.00001", (0.00001).toString());
-  Expect.equals("0.000001", (0.000001).toString());
-  Expect.equals("1e-7", (0.0000001).toString());
-  Expect.equals("1.2e-7", (0.00000012).toString());
-  Expect.equals("1.23e-7", (0.000000123).toString());
-  Expect.equals("1e-8", (0.00000001).toString());
-  Expect.equals("1.2e-8", (0.000000012).toString());
-  Expect.equals("1.23e-8", (0.0000000123).toString());
-
-  Expect.equals("-0.0", (-0.0).toString());
-  Expect.equals("-90.12", (-90.12).toString());
-  Expect.equals("-0.1", (-0.1).toString());
-  Expect.equals("-0.01", (-0.01).toString());
-  Expect.equals("-0.0123", (-0.0123).toString());
-  Expect.equals(
-      "-1.1111111111111111e+21", (-1111111111111111111111.0).toString());
-  Expect.equals(
-      "-1.1111111111111111e+22", (-11111111111111111111111.0).toString());
-  Expect.equals("-0.00001", (-0.00001).toString());
-  Expect.equals("-0.000001", (-0.000001).toString());
-  Expect.equals("-1e-7", (-0.0000001).toString());
-  Expect.equals("-1.2e-7", (-0.00000012).toString());
-  Expect.equals("-1.23e-7", (-0.000000123).toString());
-  Expect.equals("-1e-8", (-0.00000001).toString());
-  Expect.equals("-1.2e-8", (-0.000000012).toString());
-  Expect.equals("-1.23e-8", (-0.0000000123).toString());
-
-  Expect.equals("0.00001", (0.00001).toString());
-  Expect.equals("1e+21", (1000000000000000012800.0).toString());
-  Expect.equals("-1e+21", (-1000000000000000012800.0).toString());
-  Expect.equals("1e-7", (0.0000001).toString());
-  Expect.equals("-1e-7", (-0.0000001).toString());
-  Expect.equals(
-      "1.0000000000000001e+21", (1000000000000000128000.0).toString());
-  Expect.equals("0.000001", (0.000001).toString());
-  Expect.equals("1e-7", (0.0000001).toString());
-}
diff --git a/tests/language_2/double_literals/double_literal_coercion_error_test.dart b/tests/language_2/double_literals/double_literal_coercion_error_test.dart
deleted file mode 100644
index c3051cc11cc..00000000000
--- a/tests/language_2/double_literals/double_literal_coercion_error_test.dart
+++ /dev/null
@@ -1,301 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Introduces a context with double as type.
-void notDouble([double value]) {
-  if (value != null) throw "unreachable";
-}
-
-main() {
-  notDouble(
-    // Large decimal numbers which are not representable as doubles.
-    9007199254740993, //     2^53+2^0      //# 001: compile-time error
-    18014398509481983, //    2^54-2^0      //# 002: compile-time error
-    18014398509481985, //    2^54+2^0      //# 003: compile-time error
-    18014398509481986, //    2^54+2^1      //# 004: compile-time error
-    4611686018427387903, //  2^62-2^0      //# 005: compile-time error
-    4611686018427387902, //  2^62-2^1      //# 006: compile-time error
-    4611686018427387900, //  2^62-2^2      //# 007: compile-time error
-    4611686018427387896, //  2^62-2^3      //# 008: compile-time error
-    4611686018427387888, //  2^62-2^4      //# 009: compile-time error
-    4611686018427387872, //  2^62-2^5      //# 010: compile-time error
-    4611686018427387840, //  2^62-2^6      //# 011: compile-time error
-    4611686018427387776, //  2^62-2^7      //# 012: compile-time error
-    4611686018427387648, //  2^62-2^8      //# 013: compile-time error
-    4611686018427387905, //  2^62+2^0      //# 014: compile-time error
-    4611686018427387906, //  2^62+2^1      //# 015: compile-time error
-    4611686018427387908, //  2^62+2^2      //# 016: compile-time error
-    4611686018427387912, //  2^62+2^3      //# 017: compile-time error
-    4611686018427387920, //  2^62+2^4      //# 018: compile-time error
-    4611686018427387936, //  2^62+2^5      //# 019: compile-time error
-    4611686018427387968, //  2^62+2^6      //# 020: compile-time error
-    4611686018427388032, //  2^62+2^7      //# 021: compile-time error
-    4611686018427388160, //  2^62+2^8      //# 022: compile-time error
-    4611686018427388416, //  2^62+2^9      //# 023: compile-time error
-    9223372036854775807, //  2^63-2^0      //# 024: compile-time error
-    9223372036854775806, //  2^63-2^1      //# 025: compile-time error
-    9223372036854775804, //  2^63-2^2      //# 026: compile-time error
-    9223372036854775800, //  2^63-2^3      //# 027: compile-time error
-    9223372036854775792, //  2^63-2^4      //# 028: compile-time error
-    9223372036854775776, //  2^63-2^5      //# 029: compile-time error
-    9223372036854775744, //  2^63-2^6      //# 030: compile-time error
-    9223372036854775680, //  2^63-2^7      //# 031: compile-time error
-    9223372036854775552, //  2^63-2^8      //# 032: compile-time error
-    9223372036854775296, //  2^63-2^9      //# 033: compile-time error
-    9223372036854775809, //  2^63+2^0      //# 034: compile-time error
-    9223372036854775810, //  2^63+2^1      //# 035: compile-time error
-    9223372036854775812, //  2^63+2^2      //# 036: compile-time error
-    9223372036854775816, //  2^63+2^3      //# 037: compile-time error
-    9223372036854775824, //  2^63+2^4      //# 038: compile-time error
-    9223372036854775840, //  2^63+2^5      //# 039: compile-time error
-    9223372036854775872, //  2^63+2^6      //# 040: compile-time error
-    9223372036854775936, //  2^63+2^7      //# 041: compile-time error
-    9223372036854776064, //  2^63+2^8      //# 042: compile-time error
-    9223372036854776320, //  2^63+2^9      //# 043: compile-time error
-    9223372036854776832, //  2^63+2^10     //# 044: compile-time error
-    18446744073709551615, // 2^64-2^0      //# 045: compile-time error
-    18446744073709551614, // 2^64-2^1      //# 046: compile-time error
-    18446744073709551612, // 2^64-2^2      //# 047: compile-time error
-    18446744073709551608, // 2^64-2^3      //# 048: compile-time error
-    18446744073709551600, // 2^64-2^4      //# 049: compile-time error
-    18446744073709551584, // 2^64-2^5      //# 050: compile-time error
-    18446744073709551552, // 2^64-2^6      //# 051: compile-time error
-    18446744073709551488, // 2^64-2^7      //# 052: compile-time error
-    18446744073709551360, // 2^64-2^8      //# 053: compile-time error
-    18446744073709551104, // 2^64-2^9      //# 054: compile-time error
-    18446744073709550592, // 2^64-2^10     //# 055: compile-time error
-    18446744073709551617, // 2^64+2^0      //# 056: compile-time error
-    18446744073709551618, // 2^64+2^1      //# 057: compile-time error
-    18446744073709551620, // 2^64+2^2      //# 058: compile-time error
-    18446744073709551624, // 2^64+2^3      //# 059: compile-time error
-    18446744073709551632, // 2^64+2^4      //# 060: compile-time error
-    18446744073709551648, // 2^64+2^5      //# 061: compile-time error
-    18446744073709551680, // 2^64+2^6      //# 062: compile-time error
-    18446744073709551744, // 2^64+2^7      //# 063: compile-time error
-    18446744073709551872, // 2^64+2^8      //# 064: compile-time error
-    18446744073709552128, // 2^64+2^9      //# 065: compile-time error
-    18446744073709552640, // 2^64+2^10     //# 066: compile-time error
-    18446744073709553664, // 2^64+2^11     //# 067: compile-time error
-    179769313486231570814527423731704356798070567525844996598917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858367, // maxValue - 1 //# 068 : compile-time error
-    179769313486231570814527423731704356798070567525844996598917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858369, // maxValue + 1 //# 069 : compile-time error
-    359538626972463141629054847463408713596141135051689993197834953606314521560057077521179117265533756343080917907028764928468642653778928365536935093407075033972099821153102564152490980180778657888151737016910267884609166473806445896331617118664246696549595652408289446337476354361838599762500808052368249716734, // maxValue * 2 //# 070P : compile-time error
-
-    // Negative numbers too.
-    -9007199254740993, //     -(2^53+2^0)  //# 071: compile-time error
-    -18014398509481983, //    -(2^54-2^0)  //# 072: compile-time error
-    -18014398509481985, //    -(2^54+2^0)  //# 073: compile-time error
-    -18014398509481986, //    -(2^54+2^1)  //# 074: compile-time error
-    -4611686018427387903, //  -(2^62-2^0)  //# 075: compile-time error
-    -4611686018427387902, //  -(2^62-2^1)  //# 076: compile-time error
-    -4611686018427387900, //  -(2^62-2^2)  //# 077: compile-time error
-    -4611686018427387896, //  -(2^62-2^3)  //# 078: compile-time error
-    -4611686018427387888, //  -(2^62-2^4)  //# 079: compile-time error
-    -4611686018427387872, //  -(2^62-2^5)  //# 080: compile-time error
-    -4611686018427387840, //  -(2^62-2^6)  //# 081: compile-time error
-    -4611686018427387776, //  -(2^62-2^7)  //# 082: compile-time error
-    -4611686018427387648, //  -(2^62-2^8)  //# 083: compile-time error
-    -4611686018427387905, //  -(2^62+2^0)  //# 084: compile-time error
-    -4611686018427387906, //  -(2^62+2^1)  //# 085: compile-time error
-    -4611686018427387908, //  -(2^62+2^2)  //# 086: compile-time error
-    -4611686018427387912, //  -(2^62+2^3)  //# 087: compile-time error
-    -4611686018427387920, //  -(2^62+2^4)  //# 088: compile-time error
-    -4611686018427387936, //  -(2^62+2^5)  //# 089: compile-time error
-    -4611686018427387968, //  -(2^62+2^6)  //# 090: compile-time error
-    -4611686018427388032, //  -(2^62+2^7)  //# 091: compile-time error
-    -4611686018427388160, //  -(2^62+2^8)  //# 092: compile-time error
-    -4611686018427388416, //  -(2^62+2^9)  //# 093: compile-time error
-    -9223372036854775807, //  -(2^63-2^0)  //# 094: compile-time error
-    -9223372036854775806, //  -(2^63-2^1)  //# 095: compile-time error
-    -9223372036854775804, //  -(2^63-2^2)  //# 096: compile-time error
-    -9223372036854775800, //  -(2^63-2^3)  //# 097: compile-time error
-    -9223372036854775792, //  -(2^63-2^4)  //# 098: compile-time error
-    -9223372036854775776, //  -(2^63-2^5)  //# 099: compile-time error
-    -9223372036854775744, //  -(2^63-2^6)  //# 100: compile-time error
-    -9223372036854775680, //  -(2^63-2^7)  //# 101: compile-time error
-    -9223372036854775552, //  -(2^63-2^8)  //# 102: compile-time error
-    -9223372036854775296, //  -(2^63-2^9)  //# 103: compile-time error
-    -9223372036854775809, //  -(2^63+2^0)  //# 104: compile-time error
-    -9223372036854775810, //  -(2^63+2^1)  //# 105: compile-time error
-    -9223372036854775812, //  -(2^63+2^2)  //# 106: compile-time error
-    -9223372036854775816, //  -(2^63+2^3)  //# 107: compile-time error
-    -9223372036854775824, //  -(2^63+2^4)  //# 108: compile-time error
-    -9223372036854775840, //  -(2^63+2^5)  //# 109: compile-time error
-    -9223372036854775872, //  -(2^63+2^6)  //# 110: compile-time error
-    -9223372036854775936, //  -(2^63+2^7)  //# 111: compile-time error
-    -9223372036854776064, //  -(2^63+2^8)  //# 112: compile-time error
-    -9223372036854776320, //  -(2^63+2^9)  //# 113: compile-time error
-    -9223372036854776832, //  -(2^63+2^10) //# 114: compile-time error
-    -18446744073709551615, // -(2^64-2^0)  //# 115: compile-time error
-    -18446744073709551614, // -(2^64-2^1)  //# 116: compile-time error
-    -18446744073709551612, // -(2^64-2^2)  //# 117: compile-time error
-    -18446744073709551608, // -(2^64-2^3)  //# 118: compile-time error
-    -18446744073709551600, // -(2^64-2^4)  //# 119: compile-time error
-    -18446744073709551584, // -(2^64-2^5)  //# 120: compile-time error
-    -18446744073709551552, // -(2^64-2^6)  //# 121: compile-time error
-    -18446744073709551488, // -(2^64-2^7)  //# 122: compile-time error
-    -18446744073709551360, // -(2^64-2^8)  //# 123: compile-time error
-    -18446744073709551104, // -(2^64-2^9)  //# 124: compile-time error
-    -18446744073709550592, // -(2^64-2^10) //# 125: compile-time error
-    -18446744073709551617, // -(2^64+2^0)  //# 126: compile-time error
-    -18446744073709551618, // -(2^64+2^1)  //# 127: compile-time error
-    -18446744073709551620, // -(2^64+2^2)  //# 128: compile-time error
-    -18446744073709551624, // -(2^64+2^3)  //# 129: compile-time error
-    -18446744073709551632, // -(2^64+2^4)  //# 130: compile-time error
-    -18446744073709551648, // -(2^64+2^5)  //# 131: compile-time error
-    -18446744073709551680, // -(2^64+2^6)  //# 132: compile-time error
-    -18446744073709551744, // -(2^64+2^7)  //# 133: compile-time error
-    -18446744073709551872, // -(2^64+2^8)  //# 134: compile-time error
-    -18446744073709552128, // -(2^64+2^9)  //# 135: compile-time error
-    -18446744073709552640, // -(2^64+2^10) //# 136: compile-time error
-    -18446744073709553664, // -(2^64+2^11) //# 137: compile-time error
-    -179769313486231570814527423731704356798070567525844996598917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858367, // -(maxValue - 1) //# 138 : compile-time error
-    -179769313486231570814527423731704356798070567525844996598917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858369, // -(maxValue + 1) //# 139 : compile-time error
-    -359538626972463141629054847463408713596141135051689993197834953606314521560057077521179117265533756343080917907028764928468642653778928365536935093407075033972099821153102564152490980180778657888151737016910267884609166473806445896331617118664246696549595652408289446337476354361838599762500808052368249716734, // -(maxValue * 2) //# 140B : compile-time error
-
-    // Same numbers as hexadecimal literals.
-    0x20000000000001, //    2^53+2^0      //# 141: compile-time error
-    0x3fffffffffffff, //    2^54-2^0      //# 142: compile-time error
-    0x40000000000001, //    2^54+2^0      //# 143: compile-time error
-    0x40000000000002, //    2^54+2^1      //# 144: compile-time error
-    0x3fffffffffffffff, //  2^62-2^0      //# 145: compile-time error
-    0x3ffffffffffffffe, //  2^62-2^1      //# 146: compile-time error
-    0x3ffffffffffffffc, //  2^62-2^2      //# 147: compile-time error
-    0x3ffffffffffffff8, //  2^62-2^3      //# 148: compile-time error
-    0x3ffffffffffffff0, //  2^62-2^4      //# 149: compile-time error
-    0x3fffffffffffffe0, //  2^62-2^5      //# 150: compile-time error
-    0x3fffffffffffffc0, //  2^62-2^6      //# 151: compile-time error
-    0x3fffffffffffff80, //  2^62-2^7      //# 152: compile-time error
-    0x3fffffffffffff00, //  2^62-2^8      //# 153: compile-time error
-    0x4000000000000001, //  2^62+2^0      //# 154: compile-time error
-    0x4000000000000002, //  2^62+2^1      //# 155: compile-time error
-    0x4000000000000004, //  2^62+2^2      //# 156: compile-time error
-    0x4000000000000008, //  2^62+2^3      //# 157: compile-time error
-    0x4000000000000010, //  2^62+2^4      //# 158: compile-time error
-    0x4000000000000020, //  2^62+2^5      //# 159: compile-time error
-    0x4000000000000040, //  2^62+2^6      //# 160: compile-time error
-    0x4000000000000080, //  2^62+2^7      //# 161: compile-time error
-    0x4000000000000100, //  2^62+2^8      //# 162: compile-time error
-    0x4000000000000200, //  2^62+2^9      //# 163: compile-time error
-    0x7fffffffffffffff, //  2^63-2^0      //# 164: compile-time error
-    0x7ffffffffffffffe, //  2^63-2^1      //# 165: compile-time error
-    0x7ffffffffffffffc, //  2^63-2^2      //# 166: compile-time error
-    0x7ffffffffffffff8, //  2^63-2^3      //# 167: compile-time error
-    0x7ffffffffffffff0, //  2^63-2^4      //# 168: compile-time error
-    0x7fffffffffffffe0, //  2^63-2^5      //# 169: compile-time error
-    0x7fffffffffffffc0, //  2^63-2^6      //# 170: compile-time error
-    0x7fffffffffffff80, //  2^63-2^7      //# 171: compile-time error
-    0x7fffffffffffff00, //  2^63-2^8      //# 172: compile-time error
-    0x7ffffffffffffe00, //  2^63-2^9      //# 173: compile-time error
-    0x8000000000000001, //  2^63+2^0      //# 174: compile-time error
-    0x8000000000000002, //  2^63+2^1      //# 175: compile-time error
-    0x8000000000000004, //  2^63+2^2      //# 176: compile-time error
-    0x8000000000000008, //  2^63+2^3      //# 177: compile-time error
-    0x8000000000000010, //  2^63+2^4      //# 178: compile-time error
-    0x8000000000000020, //  2^63+2^5      //# 179: compile-time error
-    0x8000000000000040, //  2^63+2^6      //# 180: compile-time error
-    0x8000000000000080, //  2^63+2^7      //# 181: compile-time error
-    0x8000000000000100, //  2^63+2^8      //# 182: compile-time error
-    0x8000000000000200, //  2^63+2^9      //# 183: compile-time error
-    0x8000000000000400, //  2^63+2^10     //# 184: compile-time error
-    0xffffffffffffffff, //  2^64-2^0      //# 185: compile-time error
-    0xfffffffffffffffe, //  2^64-2^1      //# 186: compile-time error
-    0xfffffffffffffffc, //  2^64-2^2      //# 187: compile-time error
-    0xfffffffffffffff8, //  2^64-2^3      //# 188: compile-time error
-    0xfffffffffffffff0, //  2^64-2^4      //# 189: compile-time error
-    0xffffffffffffffe0, //  2^64-2^5      //# 190: compile-time error
-    0xffffffffffffffc0, //  2^64-2^6      //# 191: compile-time error
-    0xffffffffffffff80, //  2^64-2^7      //# 192: compile-time error
-    0xffffffffffffff00, //  2^64-2^8      //# 193: compile-time error
-    0xfffffffffffffe00, //  2^64-2^9      //# 194: compile-time error
-    0xfffffffffffffc00, //  2^64-2^10     //# 195: compile-time error
-    0x10000000000000001, // 2^64+2^0      //# 196: compile-time error
-    0x10000000000000002, // 2^64+2^1      //# 197: compile-time error
-    0x10000000000000004, // 2^64+2^2      //# 198: compile-time error
-    0x10000000000000008, // 2^64+2^3      //# 199: compile-time error
-    0x10000000000000010, // 2^64+2^4      //# 200: compile-time error
-    0x10000000000000020, // 2^64+2^5      //# 201: compile-time error
-    0x10000000000000040, // 2^64+2^6      //# 202: compile-time error
-    0x10000000000000080, // 2^64+2^7      //# 203: compile-time error
-    0x10000000000000100, // 2^64+2^8      //# 204: compile-time error
-    0x10000000000000200, // 2^64+2^9      //# 205: compile-time error
-    0x10000000000000400, // 2^64+2^10     //# 206: compile-time error
-    0x10000000000000800, // 2^64+2^11     //# 207: compile-time error
-    0xfffffffffffff7ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff, // maxValue - 1 //# 208 : compile-time error
-    0xfffffffffffff800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, // maxValue + 1 //# 209 : compile-time error
-    0x1fffffffffffff000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, // maxValue * 2 //# 210V : compile-time error
-
-    -0x20000000000001, //    -(2^53+2^0)      //# 211: compile-time error
-    -0x3fffffffffffff, //    -(2^54-2^0)      //# 212: compile-time error
-    -0x40000000000001, //    -(2^54+2^0)      //# 213: compile-time error
-    -0x40000000000002, //    -(2^54+2^1)      //# 214: compile-time error
-    -0x3fffffffffffffff, //  -(2^62-2^0)      //# 215: compile-time error
-    -0x3ffffffffffffffe, //  -(2^62-2^1)      //# 216: compile-time error
-    -0x3ffffffffffffffc, //  -(2^62-2^2)      //# 217: compile-time error
-    -0x3ffffffffffffff8, //  -(2^62-2^3)      //# 218: compile-time error
-    -0x3ffffffffffffff0, //  -(2^62-2^4)      //# 219: compile-time error
-    -0x3fffffffffffffe0, //  -(2^62-2^5)      //# 220: compile-time error
-    -0x3fffffffffffffc0, //  -(2^62-2^6)      //# 221: compile-time error
-    -0x3fffffffffffff80, //  -(2^62-2^7)      //# 222: compile-time error
-    -0x3fffffffffffff00, //  -(2^62-2^8)      //# 223: compile-time error
-    -0x4000000000000001, //  -(2^62+2^0)      //# 224: compile-time error
-    -0x4000000000000002, //  -(2^62+2^1)      //# 225: compile-time error
-    -0x4000000000000004, //  -(2^62+2^2)      //# 226: compile-time error
-    -0x4000000000000008, //  -(2^62+2^3)      //# 227: compile-time error
-    -0x4000000000000010, //  -(2^62+2^4)      //# 228: compile-time error
-    -0x4000000000000020, //  -(2^62+2^5)      //# 229: compile-time error
-    -0x4000000000000040, //  -(2^62+2^6)      //# 230: compile-time error
-    -0x4000000000000080, //  -(2^62+2^7)      //# 231: compile-time error
-    -0x4000000000000100, //  -(2^62+2^8)      //# 232: compile-time error
-    -0x4000000000000200, //  -(2^62+2^9)      //# 233: compile-time error
-    -0x7fffffffffffffff, //  -(2^63-2^0)      //# 234: compile-time error
-    -0x7ffffffffffffffe, //  -(2^63-2^1)      //# 235: compile-time error
-    -0x7ffffffffffffffc, //  -(2^63-2^2)      //# 236: compile-time error
-    -0x7ffffffffffffff8, //  -(2^63-2^3)      //# 237: compile-time error
-    -0x7ffffffffffffff0, //  -(2^63-2^4)      //# 238: compile-time error
-    -0x7fffffffffffffe0, //  -(2^63-2^5)      //# 239: compile-time error
-    -0x7fffffffffffffc0, //  -(2^63-2^6)      //# 240: compile-time error
-    -0x7fffffffffffff80, //  -(2^63-2^7)      //# 241: compile-time error
-    -0x7fffffffffffff00, //  -(2^63-2^8)      //# 242: compile-time error
-    -0x7ffffffffffffe00, //  -(2^63-2^9)      //# 243: compile-time error
-    -0x8000000000000001, //  -(2^63+2^0)      //# 244: compile-time error
-    -0x8000000000000002, //  -(2^63+2^1)      //# 245: compile-time error
-    -0x8000000000000004, //  -(2^63+2^2)      //# 246: compile-time error
-    -0x8000000000000008, //  -(2^63+2^3)      //# 247: compile-time error
-    -0x8000000000000010, //  -(2^63+2^4)      //# 248: compile-time error
-    -0x8000000000000020, //  -(2^63+2^5)      //# 249: compile-time error
-    -0x8000000000000040, //  -(2^63+2^6)      //# 250: compile-time error
-    -0x8000000000000080, //  -(2^63+2^7)      //# 251: compile-time error
-    -0x8000000000000100, //  -(2^63+2^8)      //# 252: compile-time error
-    -0x8000000000000200, //  -(2^63+2^9)      //# 253: compile-time error
-    -0x8000000000000400, //  -(2^63+2^10)     //# 254: compile-time error
-    -0xffffffffffffffff, //  -(2^64-2^0)      //# 255: compile-time error
-    -0xfffffffffffffffe, //  -(2^64-2^1)      //# 256: compile-time error
-    -0xfffffffffffffffc, //  -(2^64-2^2)      //# 257: compile-time error
-    -0xfffffffffffffff8, //  -(2^64-2^3)      //# 258: compile-time error
-    -0xfffffffffffffff0, //  -(2^64-2^4)      //# 259: compile-time error
-    -0xffffffffffffffe0, //  -(2^64-2^5)      //# 260: compile-time error
-    -0xffffffffffffffc0, //  -(2^64-2^6)      //# 261: compile-time error
-    -0xffffffffffffff80, //  -(2^64-2^7)      //# 262: compile-time error
-    -0xffffffffffffff00, //  -(2^64-2^8)      //# 263: compile-time error
-    -0xfffffffffffffe00, //  -(2^64-2^9)      //# 264: compile-time error
-    -0xfffffffffffffc00, //  -(2^64-2^10)     //# 265: compile-time error
-    -0x10000000000000001, // -(2^64+2^0)      //# 266: compile-time error
-    -0x10000000000000002, // -(2^64+2^1)      //# 267: compile-time error
-    -0x10000000000000004, // -(2^64+2^2)      //# 268: compile-time error
-    -0x10000000000000008, // -(2^64+2^3)      //# 269: compile-time error
-    -0x10000000000000010, // -(2^64+2^4)      //# 270: compile-time error
-    -0x10000000000000020, // -(2^64+2^5)      //# 271: compile-time error
-    -0x10000000000000040, // -(2^64+2^6)      //# 272: compile-time error
-    -0x10000000000000080, // -(2^64+2^7)      //# 273: compile-time error
-    -0x10000000000000100, // -(2^64+2^8)      //# 274: compile-time error
-    -0x10000000000000200, // -(2^64+2^9)      //# 275: compile-time error
-    -0x10000000000000400, // -(2^64+2^10)     //# 276: compile-time error
-    -0x10000000000000800, // -(2^64+2^11)     //# 277: compile-time error
-    -0xfffffffffffff7ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff, // -(maxValue - 1) //# 278 : compile-time error
-    -0xfffffffffffff800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, // -(maxValue + 1) //# 279 : compile-time error
-    -0x1fffffffffffff000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, // -(maxValue * 2) //# 280 : compile-time error
-  );
-}
diff --git a/tests/language_2/double_literals/double_literal_coercion_test.dart b/tests/language_2/double_literals/double_literal_coercion_test.dart
deleted file mode 100644
index 1771aec9efd..00000000000
--- a/tests/language_2/double_literals/double_literal_coercion_test.dart
+++ /dev/null
@@ -1,152 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Pass expected value and then decimal literal value in a double context.
-void expectDouble(double expectedValue, double actualValue) {
-  if (expectedValue == null) return;
-  Expect.identical(expectedValue, actualValue);
-}
-
-// Some exact powers of two as double values.
-double p2_8 = 256.0;
-double p2_30 = 1073741824.0;
-double p2_31 = 2147483648.0;
-double p2_32 = 4294967296.0;
-double p2_52 = 4503599627370496.0;
-double p2_53 = 9007199254740992.0;
-double p2_54 = 18014398509481984.0;
-double p2_62 = 4611686018427387904.0;
-double p2_63 = 9223372036854775808.0;
-double p2_64 = 18446744073709551616.0;
-double maxValue = 1.7976931348623157e+308;
-
-main() {
-  expectDouble(0.0, 0);
-  expectDouble(1.0, 1);
-  expectDouble(0.0, 00);
-  expectDouble(1.0, 01);
-  expectDouble(p2_8 - 1, 255);
-  expectDouble(p2_8, 256);
-  expectDouble(p2_8 + 1, 257);
-  expectDouble(p2_30 - 1, 1073741823);
-  expectDouble(p2_30, 1073741824);
-  expectDouble(p2_30 + 1, 1073741825);
-  expectDouble(p2_31 - 1, 2147483647);
-  expectDouble(p2_31, 2147483648);
-  expectDouble(p2_31 + 1, 2147483649);
-  expectDouble(p2_32 - 1, 4294967295);
-  expectDouble(p2_32, 4294967296);
-  expectDouble(p2_32 + 1, 4294967297);
-  expectDouble(p2_52 - 1, 4503599627370495);
-  expectDouble(p2_52, 4503599627370496);
-  expectDouble(p2_52 + 1, 4503599627370497);
-  expectDouble(p2_53 - 1, 9007199254740991);
-  expectDouble(p2_53, 9007199254740992);
-  expectDouble(p2_53 + 2, 9007199254740994);
-  expectDouble(p2_54 - 2, 18014398509481982);
-  expectDouble(p2_54, 18014398509481984);
-  expectDouble(p2_54 + 4, 18014398509481988);
-  expectDouble(p2_62, 4611686018427387904);
-  expectDouble(p2_63, 9223372036854775808);
-  expectDouble(p2_64, 18446744073709551616);
-  expectDouble(maxValue,
-      179769313486231570814527423731704356798070567525844996598917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858368);
-
-  expectDouble(-0.0, -0);
-  expectDouble(-1.0, -1);
-  expectDouble(-0.0, -00);
-  expectDouble(-1.0, -01);
-  expectDouble(-(p2_8 - 1), -255);
-  expectDouble(-(p2_8), -256);
-  expectDouble(-(p2_8 + 1), -257);
-  expectDouble(-(p2_30 - 1), -1073741823);
-  expectDouble(-(p2_30), -1073741824);
-  expectDouble(-(p2_30 + 1), -1073741825);
-  expectDouble(-(p2_31 - 1), -2147483647);
-  expectDouble(-(p2_31), -2147483648);
-  expectDouble(-(p2_31 + 1), -2147483649);
-  expectDouble(-(p2_32 - 1), -4294967295);
-  expectDouble(-(p2_32), -4294967296);
-  expectDouble(-(p2_32 + 1), -4294967297);
-  expectDouble(-(p2_52 - 1), -4503599627370495);
-  expectDouble(-(p2_52), -4503599627370496);
-  expectDouble(-(p2_52 + 1), -4503599627370497);
-  expectDouble(-(p2_53 - 1), -9007199254740991);
-  expectDouble(-(p2_53), -9007199254740992);
-  expectDouble(-(p2_53 + 2), -9007199254740994);
-  expectDouble(-(p2_54 - 2), -18014398509481982);
-  expectDouble(-(p2_54), -18014398509481984);
-  expectDouble(-(p2_54 + 4), -18014398509481988);
-  expectDouble(-(p2_62), -4611686018427387904);
-  expectDouble(-(p2_63), -9223372036854775808);
-  expectDouble(-(p2_64), -18446744073709551616);
-  expectDouble(-maxValue,
-      -179769313486231570814527423731704356798070567525844996598917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858368);
-
-  expectDouble(0.0, 0x0);
-  expectDouble(1.0, 0x1);
-  expectDouble(0.0, 0x00);
-  expectDouble(1.0, 0x01);
-  expectDouble(p2_8 - 1, 0xff);
-  expectDouble(p2_8, 0x100);
-  expectDouble(p2_8 + 1, 0x101);
-  expectDouble(p2_30 - 1, 0x3fffffff);
-  expectDouble(p2_30, 0x40000000);
-  expectDouble(p2_30 + 1, 0x40000001);
-  expectDouble(p2_31 - 1, 0x7fffffff);
-  expectDouble(p2_31, 0x80000000);
-  expectDouble(p2_31 + 1, 0x80000001);
-  expectDouble(p2_32 - 1, 0xffffffff);
-  expectDouble(p2_32, 0x100000000);
-  expectDouble(p2_32 + 1, 0x100000001);
-  expectDouble(p2_52 - 1, 0xfffffffffffff);
-  expectDouble(p2_52, 0x10000000000000);
-  expectDouble(p2_52 + 1, 0x10000000000001);
-  expectDouble(p2_53 - 1, 0x1fffffffffffff);
-  expectDouble(p2_53, 0x20000000000000);
-  expectDouble(p2_53 + 2, 0x20000000000002);
-  expectDouble(p2_54 - 2, 0x3ffffffffffffe);
-  expectDouble(p2_54, 0x40000000000000);
-  expectDouble(p2_54 + 4, 0x40000000000004);
-  expectDouble(p2_62, 0x4000000000000000);
-  expectDouble(p2_63, 0x8000000000000000);
-  expectDouble(p2_64, 0x10000000000000000);
-  expectDouble(maxValue,
-      0xfffffffffffff800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000);
-
-  expectDouble(-0.0, -0x0);
-  expectDouble(-1.0, -0x1);
-  expectDouble(-0.0, -0x00);
-  expectDouble(-1.0, -0x01);
-  expectDouble(-(p2_8 - 1), -0xff);
-  expectDouble(-(p2_8), -0x100);
-  expectDouble(-(p2_8 + 1), -0x101);
-  expectDouble(-(p2_30 - 1), -0x3fffffff);
-  expectDouble(-(p2_30), -0x40000000);
-  expectDouble(-(p2_30 + 1), -0x40000001);
-  expectDouble(-(p2_31 - 1), -0x7fffffff);
-  expectDouble(-(p2_31), -0x80000000);
-  expectDouble(-(p2_31 + 1), -0x80000001);
-  expectDouble(-(p2_32 - 1), -0xffffffff);
-  expectDouble(-(p2_32), -0x100000000);
-  expectDouble(-(p2_32 + 1), -0x100000001);
-  expectDouble(-(p2_52 - 1), -0xfffffffffffff);
-  expectDouble(-(p2_52), -0x10000000000000);
-  expectDouble(-(p2_52 + 1), -0x10000000000001);
-  expectDouble(-(p2_53 - 1), -0x1fffffffffffff);
-  expectDouble(-(p2_53), -0x20000000000000);
-  expectDouble(-(p2_53 + 2), -0x20000000000002);
-  expectDouble(-(p2_54 - 2), -0x3ffffffffffffe);
-  expectDouble(-(p2_54), -0x40000000000000);
-  expectDouble(-(p2_54 + 4), -0x40000000000004);
-  expectDouble(-(p2_62), -0x4000000000000000);
-  expectDouble(-(p2_63), -0x8000000000000000);
-  expectDouble(-(p2_64), -0x10000000000000000);
-  expectDouble(-maxValue,
-      -0xfffffffffffff800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000);
-}
diff --git a/tests/language_2/double_literals/implicit_double_context_test.dart b/tests/language_2/double_literals/implicit_double_context_test.dart
deleted file mode 100644
index 8a2bfff20c7..00000000000
--- a/tests/language_2/double_literals/implicit_double_context_test.dart
+++ /dev/null
@@ -1,690 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async" show FutureOr;
-
-import "package:expect/expect.dart";
-
-// Check that integer literals in a double context are allowed
-// for various double context.
-
-main() {
-  // Variable initializer context.
-  double v1 = 0;
-  Expect.identical(0.0, v1);
-  double v2 = 1;
-  Expect.identical(1.0, v2);
-  double v3 = -0;
-  Expect.identical(-0.0, v3);
-  double v4 = -1;
-  Expect.identical(-1.0, v4);
-  double v5 = 9223372036854775808; // 2^63, not valid signed 64-bit integer.
-  Expect.identical(9223372036854775808.0, v5);
-  double v6 = 18446744073709551616; // 2^64.
-  Expect.identical(18446744073709551616.0, v6);
-  double v7 = 0x02; // Hex literal.
-  Expect.identical(2.0, v7);
-  double v8 = -0x02; // Hex literal.
-  Expect.identical(-2.0, v8);
-
-  // Const variable initializer context.
-  const double c1 = 0;
-  Expect.identical(0.0, c1);
-  const double c2 = 1;
-  Expect.identical(1.0, c2);
-  const double c3 = -0;
-  Expect.identical(-0.0, c3);
-  const double c4 = -1;
-  Expect.identical(-1.0, c4);
-  const double c5 = 9223372036854775808;
-  Expect.identical(9223372036854775808.0, c5);
-  const double c6 = 18446744073709551616;
-  Expect.identical(18446744073709551616.0, c6);
-  const double c7 = 0x02; // Hex literal.
-  Expect.identical(2.0, c7);
-  const double c8 = -0x02; // Hex literal.
-  Expect.identical(-2.0, c8);
-
-  // Assignment context, variable.
-  double value;
-  value = 0;
-  Expect.identical(0.0, value);
-  value = 1;
-  Expect.identical(1.0, value);
-  value = -0;
-  Expect.identical(-0.0, value);
-  value = -1;
-  Expect.identical(-1.0, value);
-  value = 9223372036854775808;
-  Expect.identical(9223372036854775808.0, value);
-  value = 18446744073709551616;
-  Expect.identical(18446744073709551616.0, value);
-  value = 0x02;
-  Expect.identical(2.0, value);
-  value = -0x02;
-  Expect.identical(-2.0, value);
-
-  // Assignment context, setter.
-  setter = 0;
-  Expect.identical(0.0, lastSetValue);
-  setter = 1;
-  Expect.identical(1.0, lastSetValue);
-  setter = -0;
-  Expect.identical(-0.0, lastSetValue);
-  setter = -1;
-  Expect.identical(-1.0, lastSetValue);
-  setter = 9223372036854775808;
-  Expect.identical(9223372036854775808.0, lastSetValue);
-  setter = 18446744073709551616;
-  Expect.identical(18446744073709551616.0, lastSetValue);
-  setter = 0x02;
-  Expect.identical(2.0, lastSetValue);
-  setter = -0x02;
-  Expect.identical(-2.0, lastSetValue);
-
-  // Argument context.
-  test(0.0, 0);
-  test(1.0, 1);
-  test(-0.0, -0);
-  test(-1.0, -1);
-  test(9223372036854775808.0, 9223372036854775808);
-  test(18446744073709551616.0, 18446744073709551616);
-  test(2.0, 0x02);
-  test(-2.0, -0x02);
-
-  // Argument context, operator setter.
-  List<double> box = [0.5];
-  box[0] = 0;
-  Expect.identical(0.0, box[0]);
-  box[0] = 1;
-  Expect.identical(1.0, box[0]);
-  box[0] = -0;
-  Expect.identical(-0.0, box[0]);
-  box[0] = -1;
-  Expect.identical(-1.0, box[0]);
-  box[0] = 9223372036854775808;
-  Expect.identical(9223372036854775808.0, box[0]);
-  box[0] = 18446744073709551616;
-  Expect.identical(18446744073709551616.0, box[0]);
-  box[0] = 0x02;
-  Expect.identical(2.0, box[0]);
-  box[0] = -0x02;
-  Expect.identical(-2.0, box[0]);
-
-  // Argument context, custom operators.
-  var oper = Oper();
-  Expect.identical(0.0, oper + 0);
-  Expect.identical(1.0, oper + 1);
-  Expect.identical(-0.0, oper + -0);
-  Expect.identical(-1.0, oper + -1);
-  Expect.identical(9223372036854775808.0, oper + 9223372036854775808);
-  Expect.identical(18446744073709551616.0, oper + 18446744073709551616);
-  Expect.identical(2.0, oper + 0x02);
-  Expect.identical(-2.0, oper + -0x02);
-
-  Expect.identical(0.0, oper >> 0);
-  Expect.identical(1.0, oper >> 1);
-  Expect.identical(-0.0, oper >> -0);
-  Expect.identical(-1.0, oper >> -1);
-  Expect.identical(9223372036854775808.0, oper >> 9223372036854775808);
-  Expect.identical(18446744073709551616.0, oper >> 18446744073709551616);
-  Expect.identical(2.0, oper >> 0x02);
-  Expect.identical(-2.0, oper >> -0x02);
-
-  Expect.identical(0.0, oper[0]);
-  Expect.identical(1.0, oper[1]);
-  Expect.identical(-0.0, oper[-0]);
-  Expect.identical(-1.0, oper[-1]);
-  Expect.identical(9223372036854775808.0, oper[9223372036854775808]);
-  Expect.identical(18446744073709551616.0, oper[18446744073709551616]);
-  Expect.identical(2.0, oper[0x02]);
-  Expect.identical(-2.0, oper[-0x02]);
-
-  // Explicit return context.
-  double fun1() => 0;
-  Expect.identical(0.0, fun1());
-  double fun2() => 1;
-  Expect.identical(1.0, fun2());
-  double fun3() => -0;
-  Expect.identical(-0.0, fun3());
-  double fun4() => -1;
-  Expect.identical(-1.0, fun4());
-  double fun5() => 9223372036854775808;
-  Expect.identical(9223372036854775808.0, fun5());
-  double fun6() => 18446744073709551616;
-  Expect.identical(18446744073709551616.0, fun6());
-  double fun7() => 0x02;
-  Expect.identical(2.0, fun7());
-  double fun8() => -0x02;
-  Expect.identical(-2.0, fun8());
-
-  // Inferred return context.
-  testFun(0.0, () => 0);
-  testFun(1.0, () => 1);
-  testFun(-0.0, () => -0);
-  testFun(-1.0, () => -1);
-  testFun(9223372036854775808.0, () => 9223372036854775808);
-  testFun(18446744073709551616.0, () => 18446744073709551616);
-  testFun(2.0, () => 0x02);
-  testFun(-2.0, () => -0x02);
-
-  // Function default value context.
-  Object deffun1([double v = 0]) => v;
-  Expect.identical(0.0, deffun1());
-  Object deffun2([double v = 1]) => v;
-  Expect.identical(1.0, deffun2());
-  Object deffun3([double v = -0]) => v;
-  Expect.identical(-0.0, deffun3());
-  Object deffun4([double v = -1]) => v;
-  Expect.identical(-1.0, deffun4());
-  Object deffun5([double v = 9223372036854775808]) => v;
-  Expect.identical(9223372036854775808.0, deffun5());
-  Object deffun6([double v = 18446744073709551616]) => v;
-  Expect.identical(18446744073709551616.0, deffun6());
-  Object deffun7([double v = 0x02]) => v;
-  Expect.identical(2.0, deffun7());
-  Object deffun8([double v = -0x02]) => v;
-  Expect.identical(-2.0, deffun8());
-
-  // Explicit collection literal context.
-  box = <double>[0];
-  Expect.identical(0.0, box[0]);
-  box = <double>[1];
-  Expect.identical(1.0, box[0]);
-  box = <double>[-0];
-  Expect.identical(-0.0, box[0]);
-  box = <double>[-1];
-  Expect.identical(-1.0, box[0]);
-  box = <double>[9223372036854775808];
-  Expect.identical(9223372036854775808.0, box[0]);
-  box = <double>[18446744073709551616];
-  Expect.identical(18446744073709551616.0, box[0]);
-  box = <double>[0x02];
-  Expect.identical(2.0, box[0]);
-  box = <double>[-0x02];
-  Expect.identical(-2.0, box[0]);
-
-  // Implicit collection literal context.
-  box = [0];
-  Expect.identical(0.0, box[0]);
-  box = [1];
-  Expect.identical(1.0, box[0]);
-  box = [-0];
-  Expect.identical(-0.0, box[0]);
-  box = [-1];
-  Expect.identical(-1.0, box[0]);
-  box = [9223372036854775808];
-  Expect.identical(9223372036854775808.0, box[0]);
-  box = [18446744073709551616];
-  Expect.identical(18446744073709551616.0, box[0]);
-  box = [0x02];
-  Expect.identical(2.0, box[0]);
-  box = [-0x02];
-  Expect.identical(-2.0, box[0]);
-
-  Map<double, double> map;
-  // Explicit map key context.
-  map = <double, Null>{0: null};
-  Expect.identical(0.0, map.keys.first);
-  map = <double, Null>{1: null};
-  Expect.identical(1.0, map.keys.first);
-  map = <double, Null>{-0: null};
-  Expect.identical(-0.0, map.keys.first);
-  map = <double, Null>{-1: null};
-  Expect.identical(-1.0, map.keys.first);
-  map = <double, Null>{9223372036854775808: null};
-  Expect.identical(9223372036854775808.0, map.keys.first);
-  map = <double, Null>{18446744073709551616: null};
-  Expect.identical(18446744073709551616.0, map.keys.first);
-  map = <double, Null>{0x02: null};
-  Expect.identical(2.0, map.keys.first);
-  map = <double, Null>{-0x02: null};
-  Expect.identical(-2.0, map.keys.first);
-
-  // Implicit map key context.
-  map = {0: null};
-  Expect.identical(0.0, map.keys.first);
-  map = {1: null};
-  Expect.identical(1.0, map.keys.first);
-  map = {-0: null};
-  Expect.identical(-0.0, map.keys.first);
-  map = {-1: null};
-  Expect.identical(-1.0, map.keys.first);
-  map = {9223372036854775808: null};
-  Expect.identical(9223372036854775808.0, map.keys.first);
-  map = {18446744073709551616: null};
-  Expect.identical(18446744073709551616.0, map.keys.first);
-  map = {0x02: null};
-  Expect.identical(2.0, map.keys.first);
-  map = {-0x02: null};
-  Expect.identical(-2.0, map.keys.first);
-
-  // Explicit map value context.
-  map = <Null, double>{null: 0};
-  Expect.identical(0.0, map.values.first);
-  map = <Null, double>{null: 1};
-  Expect.identical(1.0, map.values.first);
-  map = <Null, double>{null: -0};
-  Expect.identical(-0.0, map.values.first);
-  map = <Null, double>{null: -1};
-  Expect.identical(-1.0, map.values.first);
-  map = <Null, double>{null: 9223372036854775808};
-  Expect.identical(9223372036854775808.0, map.values.first);
-  map = <Null, double>{null: 18446744073709551616};
-  Expect.identical(18446744073709551616.0, map.values.first);
-  map = <Null, double>{null: 0x02};
-  Expect.identical(2.0, map.values.first);
-  map = <Null, double>{null: -0x02};
-  Expect.identical(-2.0, map.values.first);
-
-  // Implicit map value context.
-  map = {null: 0};
-  Expect.identical(0.0, map.values.first);
-  map = {null: 1};
-  Expect.identical(1.0, map.values.first);
-  map = {null: -0};
-  Expect.identical(-0.0, map.values.first);
-  map = {null: -1};
-  Expect.identical(-1.0, map.values.first);
-  map = {null: 9223372036854775808};
-  Expect.identical(9223372036854775808.0, map.values.first);
-  map = {null: 18446744073709551616};
-  Expect.identical(18446744073709551616.0, map.values.first);
-  map = {null: 0x02};
-  Expect.identical(2.0, map.values.first);
-  map = {null: -0x02};
-  Expect.identical(-2.0, map.values.first);
-
-  // Top-level contexts
-  Expect.identical(0.0, ts1);
-  Expect.identical(1.0, ts2);
-  Expect.identical(-0.0, ts3);
-  Expect.identical(-1.0, ts4);
-  Expect.identical(9223372036854775808.0, ts5);
-  Expect.identical(18446744073709551616.0, ts6);
-  Expect.identical(2.0, ts7);
-  Expect.identical(-2.0, ts8);
-
-  Expect.identical(0.0, tc1);
-  Expect.identical(1.0, tc2);
-  Expect.identical(-0.0, tc3);
-  Expect.identical(-1.0, tc4);
-  Expect.identical(9223372036854775808.0, tc5);
-  Expect.identical(18446744073709551616.0, tc6);
-  Expect.identical(2.0, tc7);
-  Expect.identical(-2.0, tc8);
-
-  Expect.identical(0.0, tg1);
-  Expect.identical(1.0, tg2);
-  Expect.identical(-0.0, tg3);
-  Expect.identical(-1.0, tg4);
-  Expect.identical(9223372036854775808.0, tg5);
-  Expect.identical(18446744073709551616.0, tg6);
-  Expect.identical(2.0, tg7);
-  Expect.identical(-2.0, tg8);
-
-  // Class contexts
-  var c = new C.ci1();
-  Expect.identical(0.0, c.v1);
-  Expect.identical(1.0, c.v2);
-  Expect.identical(-0.0, c.v3);
-  Expect.identical(-1.0, c.v4);
-  Expect.identical(9223372036854775808.0, c.v5);
-  Expect.identical(18446744073709551616.0, c.v6);
-  Expect.identical(2.0, c.v7);
-  Expect.identical(-2.0, c.v8);
-
-  Expect.identical(0.0, C.s1);
-  Expect.identical(1.0, C.s2);
-  Expect.identical(-0.0, C.s3);
-  Expect.identical(-1.0, C.s4);
-  Expect.identical(9223372036854775808.0, C.s5);
-  Expect.identical(18446744073709551616.0, C.s6);
-  Expect.identical(2.0, C.s7);
-  Expect.identical(-2.0, C.s8);
-
-  Expect.identical(0.0, C.c1);
-  Expect.identical(1.0, C.c2);
-  Expect.identical(-0.0, C.c3);
-  Expect.identical(-1.0, C.c4);
-  Expect.identical(9223372036854775808.0, C.c5);
-  Expect.identical(18446744073709551616.0, C.c6);
-  Expect.identical(2.0, C.c7);
-  Expect.identical(-2.0, C.c8);
-
-  Expect.identical(0.0, new C.cc1().d);
-  Expect.identical(1.0, new C.cc2().d);
-  Expect.identical(-0.0, new C.cc3().d);
-  Expect.identical(-1.0, new C.cc4().d);
-  Expect.identical(9223372036854775808.0, new C.cc5().d);
-  Expect.identical(18446744073709551616.0, new C.cc6().d);
-  Expect.identical(2.0, new C.cc7().d);
-  Expect.identical(-2.0, new C.cc8().d);
-
-  Expect.identical(0.0, const C.cc1().d);
-  Expect.identical(1.0, const C.cc2().d);
-  Expect.identical(-0.0, const C.cc3().d);
-  Expect.identical(-1.0, const C.cc4().d);
-  Expect.identical(9223372036854775808.0, const C.cc5().d);
-  Expect.identical(18446744073709551616.0, const C.cc6().d);
-  Expect.identical(2.0, const C.cc7().d);
-  Expect.identical(-2.0, const C.cc8().d);
-
-  Expect.identical(0.0, new C.ci1().d);
-  Expect.identical(1.0, new C.ci2().d);
-  Expect.identical(-0.0, new C.ci3().d);
-  Expect.identical(-1.0, new C.ci4().d);
-  Expect.identical(9223372036854775808.0, new C.ci5().d);
-  Expect.identical(18446744073709551616.0, new C.ci6().d);
-  Expect.identical(2.0, new C.ci7().d);
-  Expect.identical(-2.0, new C.ci8().d);
-
-  Expect.identical(0.0, const C.ci1().d);
-  Expect.identical(1.0, const C.ci2().d);
-  Expect.identical(-0.0, const C.ci3().d);
-  Expect.identical(-1.0, const C.ci4().d);
-  Expect.identical(9223372036854775808.0, const C.ci5().d);
-  Expect.identical(18446744073709551616.0, const C.ci6().d);
-  Expect.identical(2.0, const C.ci7().d);
-  Expect.identical(-2.0, const C.ci8().d);
-
-  // Nested context, `?:`.
-  v1 = false ? 42.0 : 0;
-  Expect.identical(0.0, v1);
-  v2 = false ? 42.0 : 1;
-  Expect.identical(1.0, v2);
-  v3 = false ? 42.0 : -0;
-  Expect.identical(-0.0, v3);
-  v4 = false ? 42.0 : -1;
-  Expect.identical(-1.0, v4);
-  v5 = false ? 42.0 : 9223372036854775808;
-  Expect.identical(9223372036854775808.0, v5);
-  v6 = false ? 42.0 : 18446744073709551616;
-  Expect.identical(18446744073709551616.0, v6);
-  v7 = false ? 42.0 : 0x02; // Hex literal.
-  Expect.identical(2.0, v7);
-  v8 = false ? 42.0 : -0x02; // Hex literal.
-  Expect.identical(-2.0, v8);
-
-  // Nested context, `??`.
-  double nl = double.tryParse("not a double"); // Returns null typed as double.
-  v1 = nl ?? 0;
-  Expect.identical(0.0, v1);
-  v2 = nl ?? 1;
-  Expect.identical(1.0, v2);
-  v3 = nl ?? -0;
-  Expect.identical(-0.0, v3);
-  v4 = nl ?? -1;
-  Expect.identical(-1.0, v4);
-  v5 = nl ?? 9223372036854775808;
-  Expect.identical(9223372036854775808.0, v5);
-  v6 = nl ?? 18446744073709551616;
-  Expect.identical(18446744073709551616.0, v6);
-  v7 = nl ?? 0x02; // Hex literal.
-  Expect.identical(2.0, v7);
-  v8 = nl ?? -0x02; // Hex literal.
-  Expect.identical(-2.0, v8);
-
-  // Nested context, `..`.
-  v1 = 0..toString();
-  Expect.identical(0.0, v1);
-  v2 = 1..toString();
-  Expect.identical(1.0, v2);
-  v3 = -0
-    ..toString();
-  Expect.identical(-0.0, v3);
-  v4 = -1
-    ..toString();
-  Expect.identical(-1.0, v4);
-  v5 = 9223372036854775808..toString();
-  Expect.identical(9223372036854775808.0, v5);
-  v6 = 18446744073709551616..toString();
-  Expect.identical(18446744073709551616.0, v6);
-  v7 = 0x02..toString(); // Hex literal.
-  Expect.identical(2.0, v7);
-  v8 = -0x02
-    ..toString(); // Hex literal.
-  Expect.identical(-2.0, v8);
-
-  // Nexted context, double assignment.
-  Object object;
-  object = value = 0;
-  Expect.identical(0.0, value);
-  object = value = 1;
-  Expect.identical(1.0, value);
-  object = value = -0;
-  Expect.identical(-0.0, value);
-  object = value = -1;
-  Expect.identical(-1.0, value);
-  object = value = 9223372036854775808;
-  Expect.identical(9223372036854775808.0, value);
-  object = value = 18446744073709551616;
-  Expect.identical(18446744073709551616.0, value);
-  object = value = 0x02;
-  Expect.identical(2.0, value);
-  object = value = -0x02;
-  Expect.identical(-2.0, value);
-
-  // Nested context, value of assignment.
-  Expect.identical(0.0, value = 0);
-  Expect.identical(1.0, value = 1);
-  Expect.identical(-0.0, value = -0);
-  Expect.identical(-1.0, value = -1);
-  Expect.identical(9223372036854775808.0, value = 9223372036854775808);
-  Expect.identical(18446744073709551616.0, value = 18446744073709551616);
-  Expect.identical(2.0, value = 0x02);
-  Expect.identical(-2.0, value = -0x02);
-
-  // JavaScript platforms represent integers as doubles, so negating them will
-  // result in negative zero, unfortunately.
-  int zero = 0;
-  bool platformHasNegativeZeroInts = (-zero).isNegative;
-
-  // Not promoted without a double context.
-  num x = -0;
-  Expect.identical(0, x);
-  Expect.equals(x.isNegative, platformHasNegativeZeroInts);
-
-  var list = [3.14, 2.17, -0];
-  Expect.notType<List<double>>(list);
-  Expect.identical(0, list[2]);
-  Expect.equals(list[2].isNegative, platformHasNegativeZeroInts);
-
-  // FutureOr<double> also forces double.
-  // "Type that int is not assignable to, but double is."
-  FutureOr<double> fo1 = 0;
-  Expect.identical(0.0, fo1);
-  FutureOr<double> fo2 = 1;
-  Expect.identical(1.0, fo2);
-  FutureOr<double> fo3 = -0;
-  Expect.identical(-0.0, fo3);
-  FutureOr<double> fo4 = -1;
-  Expect.identical(-1.0, fo4);
-  FutureOr<double> fo5 = 9223372036854775808;
-  Expect.identical(9223372036854775808.0, fo5);
-  FutureOr<double> fo6 = 18446744073709551616;
-  Expect.identical(18446744073709551616.0, fo6);
-  FutureOr<double> fo7 = 0x02; // Hex literal.
-  Expect.identical(2.0, fo7);
-  FutureOr<double> fo8 = -0x02; // Hex literal.
-  Expect.identical(-2.0, fo8);
-
-  // Some other FutureOr cases, without being exhaustive.
-  {
-    Object func([FutureOr<double> x = 9223372036854775808]) => x;
-    Expect.identical(9223372036854775808.0, func(9223372036854775808));
-    Expect.identical(9223372036854775808.0, func());
-    FutureOr<double> func2() => 9223372036854775808;
-    Expect.identical(9223372036854775808.0, func2());
-    testGeneric<FutureOr<double>>(9223372036854775808.0, 9223372036854775808);
-    List<FutureOr<double>> l = [9223372036854775808];
-    testGeneric<FutureOr<double>>(9223372036854775808.0, l[0]);
-    l.add(9223372036854775808);
-    testGeneric<FutureOr<double>>(9223372036854775808.0, l[1]);
-    l.add(0.0);
-    l[2] = 9223372036854775808;
-    testGeneric<FutureOr<double>>(9223372036854775808.0, l[2]);
-  }
-
-  // Type variables statically bound to double also force doubles:
-  testGeneric<double>(0.0, 0);
-  testGeneric<double>(1.0, 1);
-  testGeneric<double>(-0.0, -0);
-  testGeneric<double>(-1.0, -1);
-  testGeneric<double>(9223372036854775808.0, 9223372036854775808);
-  testGeneric<double>(18446744073709551616.0, 18446744073709551616);
-  testGeneric<double>(2.0, 0x02);
-  testGeneric<double>(-2.0, -0x02);
-
-  // Uses static type, not run-time type.
-  Super sub = Sub();
-  Expect.identical(0.0, sub.method(0));
-  Expect.identical(1.0, sub.method(1));
-  Expect.identical(-0.0, sub.method(-0));
-  Expect.identical(-1.0, sub.method(-1));
-  Expect.identical(9223372036854775808.0, sub.method(9223372036854775808));
-  Expect.identical(18446744073709551616.0, sub.method(18446744073709551616));
-  Expect.identical(2.0, sub.method(0x02));
-  Expect.identical(-2.0, sub.method(-0x02));
-
-  {
-    // Check that the correct value is used as receiver for the cascade.
-    var collector = StringBuffer();
-    double tricky = -42
-      ..toString().codeUnits.forEach(collector.writeCharCode);
-    Expect.equals("${-42.0}", collector.toString());
-  }
-
-  bool isDigit(int charCode) => (charCode ^ 0x30) <= 9;
-  // Throws because double context does not affect "4", so the toString does
-  // not contain any non-digit (like ".", which it would if 4 was a double).
-  // The context type of "4.toString..." is not double, and the `-`
-  // is not having a literal as operand.
-  Expect.throws(() {
-    double tricky =
-        -4.toString().codeUnits.firstWhere((c) => !isDigit(c)).toDouble();
-  });
-  // The `?.` operation has the same precedence as `.`.
-  Expect.throws(() {
-    double tricky =
-        -4?.toString().codeUnits.firstWhere((c) => !isDigit(c)).toDouble();
-  });
-}
-
-void test(double expect, double value) {
-  Expect.identical(expect, value);
-}
-
-void testFun(double expect, double f()) {
-  Expect.identical(expect, f());
-}
-
-void testGeneric<T>(double expect, T value) {
-  Expect.identical(expect, value);
-}
-
-class Oper {
-  Object operator +(double value) => value;
-  Object operator >>(double value) => value;
-  Object operator [](double value) => value;
-}
-
-class C {
-  // Instance variable initializer
-  final double v1 = 0;
-  final double v2 = 1;
-  final double v3 = -0;
-  final double v4 = -1;
-  final double v5 = 9223372036854775808;
-  final double v6 = 18446744073709551616;
-  final double v7 = 0x02; // Hex literal.
-  final double v8 = -0x02; // Hex literal.
-
-  // Static class variable initializer
-  static double s1 = 0;
-  static double s2 = 1;
-  static double s3 = -0;
-  static double s4 = -1;
-  static double s5 = 9223372036854775808;
-  static double s6 = 18446744073709551616;
-  static double s7 = 0x02; // Hex literal.
-  static double s8 = -0x02; // Hex literal.
-
-  // Const class variable initializer context.
-  static const double c1 = 0;
-  static const double c2 = 1;
-  static const double c3 = -0;
-  static const double c4 = -1;
-  static const double c5 = 9223372036854775808;
-  static const double c6 = 18446744073709551616;
-  static const double c7 = 0x02; // Hex literal.
-  static const double c8 = -0x02; // Hex literal.
-
-  final double d;
-
-  // Default value context for a double initializing formal.
-  const C.cc1([this.d = 0]);
-  const C.cc2([this.d = 1]);
-  const C.cc3([this.d = -0]);
-  const C.cc4([this.d = -1]);
-  const C.cc5([this.d = 9223372036854775808]);
-  const C.cc6([this.d = 18446744073709551616]);
-  const C.cc7([this.d = 0x02]);
-  const C.cc8([this.d = -0x02]);
-
-  // Initializer list expressions context.
-  const C.ci1() : this.d = 0;
-  const C.ci2() : this.d = 1;
-  const C.ci3() : this.d = -0;
-  const C.ci4() : this.d = -1;
-  const C.ci5() : this.d = 9223372036854775808;
-  const C.ci6() : this.d = 18446744073709551616;
-  const C.ci7() : this.d = 0x02;
-  const C.ci8() : this.d = -0x02;
-}
-
-// Top-level lazy variable initializer
-double ts1 = 0;
-double ts2 = 1;
-double ts3 = -0;
-double ts4 = -1;
-double ts5 = 9223372036854775808;
-double ts6 = 18446744073709551616;
-double ts7 = 0x02; // Hex literal.
-double ts8 = -0x02; // Hex literal.
-
-// Top-level const variable initializer.
-const double tc1 = 0;
-const double tc2 = 1;
-const double tc3 = -0;
-const double tc4 = -1;
-const double tc5 = 9223372036854775808; // 2^63, invalid signed 64-bit integer.
-const double tc6 = 18446744073709551616;
-const double tc7 = 0x02; // Hex literal.
-const double tc8 = -0x02; // Hex literal.
-
-// Top-level getter return context.
-double get tg1 => 0;
-double get tg2 => 1;
-double get tg3 => -0;
-double get tg4 => -1;
-double get tg5 => 9223372036854775808;
-double get tg6 => 18446744073709551616;
-double get tg7 => 0x02; // Hex literal.
-double get tg8 => -0x02; // Hex literal.
-
-Object lastSetValue = null;
-void set setter(double v) {
-  lastSetValue = v;
-}
-
-abstract class Super {
-  Object method(double v);
-}
-
-class Sub implements Super {
-  Object method(Object o) => o;
-}
diff --git a/tests/language_2/dynamic/call_test.dart b/tests/language_2/dynamic/call_test.dart
deleted file mode 100644
index 2ecd3a25f80..00000000000
--- a/tests/language_2/dynamic/call_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing dynamic calls.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Helper {
-  Helper() {}
-  int foo(int i) {
-    return i;
-  }
-}
-
-class DynamicCallTest {
-  static int testMain() {
-    Helper obj = new Helper();
-    Expect.equals(1, obj.foo(1));
-  }
-}
-
-main() {
-  DynamicCallTest.testMain();
-}
diff --git a/tests/language_2/dynamic/dynamic2_runtime_test.dart b/tests/language_2/dynamic/dynamic2_runtime_test.dart
deleted file mode 100644
index 12a4448404c..00000000000
--- a/tests/language_2/dynamic/dynamic2_runtime_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Test the prohibited use of 'dynamic' in extending and implementing classes.
-
-class A
-
-
-{}
-
-main() {
-  new A();
-}
diff --git a/tests/language_2/dynamic/dynamic2_test.dart b/tests/language_2/dynamic/dynamic2_test.dart
deleted file mode 100644
index e83c75cb87c..00000000000
--- a/tests/language_2/dynamic/dynamic2_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Test the prohibited use of 'dynamic' in extending and implementing classes.
-
-// @dart = 2.9
-
-class A
-  extends dynamic
-  //      ^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTENDS_NON_CLASS
-  // [cfe] The type 'dynamic' can't be used as supertype.
-  implements dynamic
-  //         ^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.IMPLEMENTS_NON_CLASS
-  // [cfe] The type 'dynamic' can't be used as supertype.
-{}
-
-main() {
-  new A();
-}
diff --git a/tests/language_2/dynamic/dynamic_test.dart b/tests/language_2/dynamic/dynamic_test.dart
deleted file mode 100644
index 1e88d2a8abd..00000000000
--- a/tests/language_2/dynamic/dynamic_test.dart
+++ /dev/null
@@ -1,69 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program testing the use of 'dynamic' in generic types.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class Iface<K, V> {}
-
-class M1<K, V> implements Iface<K, V> {}
-
-class M2<K> implements Iface<K, dynamic> {}
-
-class M3 implements Iface<String, dynamic> {}
-
-typedef dynamic F1<T>(dynamic x, T y);
-
-class HasFieldDynamic {
-  HasFieldDynamic() : dynamic = "dynamic" {}
-  var dynamic; // Field named dynamic is allowed.
-}
-
-class HasMethodDynamic {
-  dynamic() => "dynamic"; // Method named dynamic is allowed.
-}
-
-main() {
-  // dynamic is a top-type, equivalent to Object at runtime.
-  Expect.isTrue(dynamic is Type);
-  Expect.equals(dynamic, dynamic);
-
-  // dynamic is not a subtype of num or String.
-  M1<dynamic, dynamic> m1 = new M1<dynamic, dynamic>();
-  Expect.isFalse(m1 is Iface<dynamic, num>);
-  Expect.isFalse(m1 is Iface<String, dynamic>);
-  Expect.isFalse(m1 is Iface<String, num>);
-  Expect.isFalse(m1 is Iface<num, String>);
-
-  M2<dynamic> m2 = new M2<dynamic>(); // is Iface<dynamic, dynamic>.
-  Expect.isFalse(m2 is Iface<dynamic, num>);
-  Expect.isFalse(m2 is Iface<String, dynamic>);
-  Expect.isFalse(m2 is Iface<String, num>);
-  Expect.isFalse(m2 is Iface<num, String>);
-
-  M3 m3 = new M3(); // is IFace<String, dynamic>.
-  Expect.isFalse(m3 is Iface<dynamic, num>);
-  Expect.isTrue(m3 is Iface<String, dynamic>);
-  Expect.isFalse(m3 is Iface<String, num>);
-  Expect.isTrue(m3 is! Iface<num, String>);
-
-  F1<int> f1 = (dynamic s, int i) => s[i]; // is dynamic Function(dynamic, int).
-  Expect.isTrue(f1 is F1<int>);
-
-  // "dynamic" is not a reserved word or built-in identifier.
-
-  HasFieldDynamic has_field = new HasFieldDynamic();
-  Expect.equals("dynamic", has_field.dynamic);
-
-  HasMethodDynamic has_method = new HasMethodDynamic();
-  Expect.equals("dynamic", has_method.dynamic());
-
-  {
-    int dynamic = 0; // Local variable named dynamic is allowed.
-    Expect.equals(0, dynamic);
-  }
-}
diff --git a/tests/language_2/dynamic/field_runtime_test.dart b/tests/language_2/dynamic/field_runtime_test.dart
deleted file mode 100644
index 9bf48ef1939..00000000000
--- a/tests/language_2/dynamic/field_runtime_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Test that ensures that fields can be accessed dynamically.
-
-import "package:expect/expect.dart";
-
-class A extends C {
-  var a;
-  var b;
-}
-
-class C {
-  foo() {
-
-
-  }
-  bar() {
-
-
-  }
-}
-
-main() {
-  var a = new A();
-  a.a = 1;
-  a.b = a;
-
-
-}
diff --git a/tests/language_2/dynamic/field_test.dart b/tests/language_2/dynamic/field_test.dart
deleted file mode 100644
index 5ac338ee6b7..00000000000
--- a/tests/language_2/dynamic/field_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Test that ensures that fields can be accessed dynamically.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A extends C {
-  var a;
-  var b;
-}
-
-class C {
-  foo() {
-    print(a);
-    //    ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-    // [cfe] The getter 'a' isn't defined for the class 'C'.
-    return a;
-    //     ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-    // [cfe] The getter 'a' isn't defined for the class 'C'.
-  }
-  bar() {
-    print(b.a);
-    //    ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-    // [cfe] The getter 'b' isn't defined for the class 'C'.
-    return b.a;
-    //     ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-    // [cfe] The getter 'b' isn't defined for the class 'C'.
-  }
-}
-
-main() {
-  var a = new A();
-  a.a = 1;
-  a.b = a;
-  Expect.equals(1, a.foo());
-  Expect.equals(1, a.bar());
-}
diff --git a/tests/language_2/dynamic/hash_code_test.dart b/tests/language_2/dynamic/hash_code_test.dart
deleted file mode 100644
index d9d9e1e9ac9..00000000000
--- a/tests/language_2/dynamic/hash_code_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  dynamic x = 3;
-  Expect.equals(3.0.hashCode, x.hashCode);
-}
diff --git a/tests/language_2/dynamic/invoke_test.dart b/tests/language_2/dynamic/invoke_test.dart
deleted file mode 100644
index c142c29175b..00000000000
--- a/tests/language_2/dynamic/invoke_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing dynamic calls.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Make this something that DDC considers side effecting.
-dynamic get d => "hello";
-
-regress29504() {
-  // These forms were being incorrectly generated as dynamic invokes, which is
-  // not supposed to be done for the Object members that are always present on
-  // all Dart types, including `null`.
-  //
-  // See https://github.com/dart-lang/sdk/issues/29504
-  //
-  // What we're testing here is that none of these generate dynamic invokes,
-  // because that will throw a NoSuchMethod error if it happens.
-  Expect.equals(d.runtimeType, String);
-  Expect.equals(d?.runtimeType, String);
-  Expect.equals(d..runtimeType, "hello");
-
-  Expect.equals(d.hashCode, "hello".hashCode);
-  Expect.equals(d?.hashCode, "hello".hashCode);
-  Expect.equals(d..hashCode, "hello");
-
-  Expect.equals(d.toString(), "hello");
-  Expect.equals(d?.toString(), "hello");
-  Expect.equals(d..toString(), "hello");
-}
-
-main() {
-  regress29504();
-}
diff --git a/tests/language_2/dynamic/prefix_core_test.dart b/tests/language_2/dynamic/prefix_core_test.dart
deleted file mode 100644
index dcb6c9dd7fd..00000000000
--- a/tests/language_2/dynamic/prefix_core_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test explicit import of dart:core in the source code..
-
-// @dart = 2.9
-
-library DynamicPrefixCoreTest.dart;
-
-import "package:expect/expect.dart";
-import "dart:core" as mycore;
-
-void main() {
-  // The built-in type declaration `dynamic`, which is declared in the
-  // library `dart:core`, denotes the `dynamic` type. So, in this library
-  // it must be reference with the prefix.
-  dynamic; //# 01: compile-time error
-
-  Expect.isTrue(mycore.dynamic is mycore.Type); //# 02: ok
-}
diff --git a/tests/language_2/dynamic/set_test.dart b/tests/language_2/dynamic/set_test.dart
deleted file mode 100644
index 27bba8137f7..00000000000
--- a/tests/language_2/dynamic/set_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Test that ensures that fields can be accessed dynamically.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C {
-  final x = "hello";
-  get y => ", ";
-  m() => "world!";
-}
-
-// Regression test for https://github.com/dart-lang/sdk/issues/27258
-main() {
-  dynamic c = new C();
-  Expect.equals(c.x + c.y + c.m(), "hello, world!");
-
-  Expect.throws(() {
-    c.x = 1;
-  });
-  Expect.throws(() {
-    c.x = '1';
-  });
-  Expect.throws(() {
-    c.y = '2';
-  });
-  Expect.throws(() {
-    c.m = '3';
-  });
-
-  Expect.equals(c.x + c.y + c.m(), "hello, world!");
-}
diff --git a/tests/language_2/dynamic/type_literal_test.dart b/tests/language_2/dynamic/type_literal_test.dart
deleted file mode 100644
index d940916543b..00000000000
--- a/tests/language_2/dynamic/type_literal_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test generation of 'dynamic' type literals.
-
-import "package:expect/expect.dart";
-
-void main() {
-  Expect.isTrue(dynamic is Type);
-  Expect.isFalse(dynamic == Type);
-}
diff --git a/tests/language_2/dynamic_type_helper.dart b/tests/language_2/dynamic_type_helper.dart
deleted file mode 100644
index 69db3460bda..00000000000
--- a/tests/language_2/dynamic_type_helper.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library dynamic_type_helper;
-
-import 'package:expect/expect.dart';
-
-/// Checks that a dynamic type error is thrown when [f] is executed
-/// and [expectTypeError] is `true`.
-void testDynamicTypeError(bool expectTypeError, f(), [String message]) {
-  if (expectTypeError) {
-    checkDynamicTypeError(f, message);
-  } else {
-    checkNoDynamicTypeError(f, message);
-  }
-}
-
-/// Checks that a dynamic type error is thrown when f is executed.
-void checkDynamicTypeError(f(), [String message]) {
-  message = message != null ? ': $message' : '';
-  try {
-    f();
-    Expect.fail('Missing type error$message.');
-  } on TypeError catch (e) {}
-}
-
-/// Checks that no dynamic type error is thrown when [f] is executed.
-void checkNoDynamicTypeError(f(), [String message]) {
-  message = message != null ? ': $message' : '';
-  try {
-    f();
-  } on TypeError catch (e) {
-    Expect.fail('Unexpected type error$message.');
-  }
-}
diff --git a/tests/language_2/enum/duplicate_lib.dart b/tests/language_2/enum/duplicate_lib.dart
deleted file mode 100644
index 9534b62d842..00000000000
--- a/tests/language_2/enum/duplicate_lib.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library enum_duplicate_lib;
-
-enum Enum1 {
-  A,
-  B,
-}
-
-class Enum2 {
-  static Iterable get values => ['Enum2.A', 'Enum2.B'];
-}
diff --git a/tests/language_2/enum/duplicate_test.dart b/tests/language_2/enum/duplicate_test.dart
deleted file mode 100644
index 0ae0bdda1d0..00000000000
--- a/tests/language_2/enum/duplicate_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for duplicate enums.
-
-library enum_duplicate_test;
-
-import 'package:expect/expect.dart';
-
-import 'duplicate_lib.dart' as lib; //# 01: ok
-import 'duplicate_lib.dart' as lib; //# 02: ok
-
-enum Enum1 {
-  A,
-  B,
-}
-
-enum Enum2 {
-  A,
-  B,
-}
-
-main() {
-  Expect.equals('Enum1.A,Enum1.B', Enum1.values.join(','));
-  Expect.equals('Enum1.A,Enum1.B', lib.Enum1.values.join(',')); //# 01: continued
-  Expect.equals('Enum2.A,Enum2.B', Enum2.values.join(','));
-  Expect.equals('Enum2.A,Enum2.B', lib.Enum2.values.join(',')); //# 02: continued
-}
diff --git a/tests/language_2/enum/enum_test.dart b/tests/language_2/enum/enum_test.dart
deleted file mode 100644
index f40914876bf..00000000000
--- a/tests/language_2/enum/enum_test.dart
+++ /dev/null
@@ -1,195 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-enum Enum1 { _ }
-
-enum Enum2 { A }
-
-enum Enum3 { B, C }
-
-enum Enum4 {
-  D,
-  E,
-}
-
-enum Enum5 { F, G, H }
-
-enum _Enum6 { I, _J }
-
-enum _IsNot { IsNot }
-
-enum NamedName { name, address }
-
-// Regression test for https://github.com/dart-lang/sdk/issues/33348
-enum JSFunctionPrototype {
-  length,
-  prototype,
-  __proto__,
-  arguments,
-  caller,
-  callee,
-  name,
-  constructor,
-  apply,
-  bind,
-  call
-}
-
-void expectIs<T>(T t, bool Function(Object) test) {
-  Object obj = t;
-  Expect.isTrue(test(obj), '$obj is $T');
-  Expect.isFalse(obj is _IsNot, '$obj is _IsNot');
-  // test cast
-  t = obj as T;
-  Expect.throwsTypeError(() => obj as _IsNot, '$obj as _IsNot');
-}
-
-main() {
-  expectIs(Enum1._, (e) => e is Enum1);
-  expectIs(Enum2.A, (e) => e is Enum2);
-  expectIs(Enum3.B, (e) => e is Enum3);
-  expectIs(Enum4.E, (e) => e is Enum4);
-  expectIs(Enum5.G, (e) => e is Enum5);
-
-  Expect.equals('Enum1._', Enum1._.toString());
-  Expect.equals(0, Enum1._.index);
-  Expect.listEquals([Enum1._], Enum1.values);
-  Enum1.values.forEach(test1);
-
-  Expect.equals('Enum2.A', Enum2.A.toString());
-  Expect.equals(0, Enum2.A.index);
-  Expect.listEquals([Enum2.A], Enum2.values);
-  Expect.identical(const <Enum2>[Enum2.A], Enum2.values);
-  Enum2.values.forEach(test2);
-
-  Expect.equals('Enum3.B', Enum3.B.toString());
-  Expect.equals('Enum3.C', Enum3.C.toString());
-  Expect.equals(0, Enum3.B.index);
-  Expect.equals(1, Enum3.C.index);
-  Expect.listEquals([Enum3.B, Enum3.C], Enum3.values);
-  Enum3.values.forEach(test3);
-
-  Expect.equals('Enum4.D', Enum4.D.toString());
-  Expect.equals('Enum4.E', Enum4.E.toString());
-  Expect.equals(0, Enum4.D.index);
-  Expect.equals(1, Enum4.E.index);
-  Expect.listEquals([Enum4.D, Enum4.E], Enum4.values);
-  Enum4.values.forEach(test4);
-
-  Expect.equals('Enum5.F', Enum5.F.toString());
-  Expect.equals('Enum5.G', Enum5.G.toString());
-  Expect.equals('Enum5.H', Enum5.H.toString());
-  Expect.equals(0, Enum5.F.index);
-  Expect.equals(1, Enum5.G.index);
-  Expect.equals(2, Enum5.H.index);
-  Expect.listEquals([Enum5.F, Enum5.G, Enum5.H], Enum5.values);
-  Enum5.values.forEach(test5);
-
-  Expect.equals('_Enum6.I', _Enum6.I.toString());
-  Expect.equals('_Enum6._J', _Enum6._J.toString());
-
-  for (var value in JSFunctionPrototype.values) {
-    expectIs(value, (e) => e is JSFunctionPrototype);
-  }
-  Expect.equals(JSFunctionPrototype.length, JSFunctionPrototype.values[0]);
-
-  // Enums implement Enum.
-  Expect.type<Enum>(Enum1._);
-  Enum enumValue = Enum1._;
-  Expect.equals(0, enumValue.index);
-
-  // Enum.compareByIndex orders enums correctly.
-  var enumValues = [Enum5.G, Enum5.H, Enum5.F];
-  for (var i = 0; i < 10; i++) {
-    enumValues.sort(Enum.compareByIndex);
-    enumValues.fold<int>(-1, (previousValue, element) {
-      Expect.isTrue(previousValue < element.index, "$enumValues");
-      return element.index;
-    });
-    enumValues.shuffle();
-  }
-  // Can be used at the type `Enum` to compare different enums.
-  Expect.isTrue(Enum.compareByIndex<Enum>(Enum4.D, Enum5.H) < 0);
-  Expect.isTrue(Enum.compareByIndex<Enum>(Enum4.E, Enum5.F) > 0);
-  Expect.isTrue(Enum.compareByIndex<Enum>(Enum4.D, Enum5.F) == 0);
-
-  Expect.equals("A", Enum2.A.name);
-  Expect.equals("_", Enum1._.name);
-  Expect.equals("name", EnumName(NamedName.name).name);
-
-  Expect.identical(Enum2.A, Enum2.values.byName("A"));
-  Expect.identical(Enum1._, Enum1.values.byName("_"));
-  Expect.identical(NamedName.name, NamedName.values.byName("name"));
-
-  var map = NamedName.values.asNameMap();
-  Expect.type<Map<String, NamedName>>(map);
-  Expect.identical(NamedName.name, map["name"]);
-  Expect.identical(NamedName.address, map["address"]);
-}
-
-test1(Enum1 e) {
-  int index;
-  switch (e) {
-    case Enum1._:
-      index = 0;
-      break;
-  }
-  Expect.equals(e.index, index);
-}
-
-test2(Enum2 e) {
-  int index;
-  switch (e) {
-    case Enum2.A:
-      index = 0;
-      break;
-  }
-  Expect.equals(e.index, index);
-}
-
-test3(Enum3 e) {
-  int index;
-  switch (e) {
-    case Enum3.C:
-      index = 1;
-      break;
-    case Enum3.B:
-      index = 0;
-      break;
-  }
-  Expect.equals(e.index, index);
-}
-
-test4(Enum4 e) {
-  int index;
-  switch (e) {
-    case Enum4.D:
-      index = 0;
-      break;
-    case Enum4.E:
-      index = 1;
-      break;
-  }
-  Expect.equals(e.index, index);
-}
-
-test5(Enum5 e) {
-  int index;
-  switch (e) {
-    case Enum5.H:
-      index = 2;
-      break;
-    case Enum5.F:
-      index = 0;
-      break;
-    case Enum5.G:
-      index = 1;
-      break;
-  }
-  Expect.equals(e.index, index);
-}
diff --git a/tests/language_2/enum/index_test.dart b/tests/language_2/enum/index_test.dart
deleted file mode 100644
index fb1c5b3c243..00000000000
--- a/tests/language_2/enum/index_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test index access for enums.
-
-library enum_index_test;
-
-import 'package:expect/expect.dart';
-
-enum Enum {
-  A,
-  B,
-}
-
-class Class {
-  var index;
-}
-
-main() {
-  test(null, new Class());
-  test(0, Enum.A);
-  test(1, Enum.B);
-}
-
-test(expected, object) {
-  Expect.equals(expected, object.index);
-}
diff --git a/tests/language_2/enum/initialization_near_stack_overflow_test.dart b/tests/language_2/enum/initialization_near_stack_overflow_test.dart
deleted file mode 100644
index 7e4ece87bba..00000000000
--- a/tests/language_2/enum/initialization_near_stack_overflow_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// https://github.com/flutter/flutter/issues/25041
-
-// This test may produce a compile time exception from stack overflow during
-// enum initialization or succeed in enum initialization depending on exactly
-// how much stack is left and used by the compiler. It should never crash nor
-// produce a runtime exception.
-
-enum Fruit {
-  apple,
-  banana,
-}
-
-getFruit() => Fruit.apple;
-
-recurse() {
-  try {
-    recurse();
-  } catch (e, st) {
-    print("$e ${getFruit()}");
-  }
-}
-
-main() {
-  try {
-    recurse();
-  } on StackOverflowError catch (e) {
-    // Swallow.
-  }
-}
diff --git a/tests/language_2/enum/is_keyword_runtime_test.dart b/tests/language_2/enum/is_keyword_runtime_test.dart
deleted file mode 100644
index 4c8c400fa43..00000000000
--- a/tests/language_2/enum/is_keyword_runtime_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that `enum` is considered a keyword and therefore invalid as the name of
-// declarations.
-
-main() {}
diff --git a/tests/language_2/enum/is_keyword_test.dart b/tests/language_2/enum/is_keyword_test.dart
deleted file mode 100644
index b57ee880fb7..00000000000
--- a/tests/language_2/enum/is_keyword_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that `enum` is considered a keyword and therefore invalid as the name of
-// declarations.
-
-main() {
-  var enum;
-  //  ^^^^
-  // [analyzer] SYNTACTIC_ERROR.EXPECTED_IDENTIFIER_BUT_GOT_KEYWORD
-  // [cfe] 'enum' can't be used as an identifier because it's a keyword.
-}
diff --git a/tests/language_2/enum/private_lib.dart b/tests/language_2/enum/private_lib.dart
deleted file mode 100644
index dfce2387ad5..00000000000
--- a/tests/language_2/enum/private_lib.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library enum_private_lib;
-
-enum Enum2 {
-  _A,
-  _B,
-}
diff --git a/tests/language_2/enum/private_runtime_1_test.dart b/tests/language_2/enum/private_runtime_1_test.dart
deleted file mode 100644
index 9234818a922..00000000000
--- a/tests/language_2/enum/private_runtime_1_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test privacy issue for enums.
-
-library enum_private_test;
-
-import 'package:expect/expect.dart';
-
-import 'private_lib.dart';
-
-enum Enum1 {
-  _A,
-  _B,
-}
-
-main() {
-  Expect.equals('Enum1._A,Enum1._B', Enum1.values.join(','));
-  Expect.equals('Enum2._A,Enum2._B', Enum2.values.join(','));
-}
diff --git a/tests/language_2/enum/private_runtime_test.dart b/tests/language_2/enum/private_runtime_test.dart
deleted file mode 100644
index ea9c19af3c4..00000000000
--- a/tests/language_2/enum/private_runtime_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test privacy issue for enums.
-
-library enum_private_test;
-
-import 'package:expect/expect.dart';
-
-import 'private_lib.dart';
-
-enum Enum1 {
-  _A,
-  _B,
-}
-
-main() {
-  Expect.equals('Enum1._A,Enum1._B', Enum1.values.join(','));
-}
diff --git a/tests/language_2/enum/private_test.dart b/tests/language_2/enum/private_test.dart
deleted file mode 100644
index ef31ea686db..00000000000
--- a/tests/language_2/enum/private_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test privacy issue for enums.
-
-library enum_private_test;
-
-import 'package:expect/expect.dart';
-
-import 'private_lib.dart';
-
-enum Enum1 {
-  _A,
-  _B,
-}
-
-main() {
-  Expect.equals('Enum1._A,Enum1._B', Enum1.values.join(','));
-  Expect.equals('Enum2._A,Enum2._B', Enum2.values.join(','));
-  Expect.throwsNoSuchMethodError(() => Enum2._A);
-  //                                         ^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_ENUM_CONSTANT
-  // [cfe] Member not found: '_A'.
-}
diff --git a/tests/language_2/enum/syntax_test.dart b/tests/language_2/enum/syntax_test.dart
deleted file mode 100644
index 1c6ce183573..00000000000
--- a/tests/language_2/enum/syntax_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Basic syntax test for enumeration types
-
-enum Color { red, orange, yellow, green }
-
-// Additional comma at end of list is ok.
-enum Veggies {
-  carrot,
-  bean,
-  broccolo,
-}
-
-// Need at least one enumeration identifier.
-enum Nada {} // //# 01: syntax error
-
-// Duplicate entries are a compile-time error
-enum ComeAgain { ahau, knust, zipfel, knust, gupf } // //# 02: compile-time error
-
-// Enum entries must not collide with implicitly defined members.
-enum ComeAgain { ahau, knust, zipfel, index } //# 03: compile-time error
-
-enum ComeAgain { ahau, knust, zipfel, values } //# 04: compile-time error
-
-enum ComeAgain { ahau, knust, zipfel, toString } //# 05: compile-time error
-
-// Enum entry must not collide with enum type name.
-enum ComeAgain { ahau, knust, zipfel, ComeAgain } //# 06: compile-time error
-
-// Missing comma.
-enum Numbers { one, two, three four, five } // //# 07: syntax error
-
-// Missing enum type name.
-enum { eins, zwei, drei } // //# 08: syntax error
-
-// Duplicate name in library scope.
-topLevelFunction() => null;
-enum topLevelFunction { bla, blah } // //# 09: compile-time error
-
-class C {}
-enum C { bla, blah } // //# 10: compile-time error
-
-var zzTop;
-enum zzTop { Billy, Dusty, Frank } // //# 11: compile-time error
-
-// Enum type cannot be super type or interface type.
-class Rainbow extends Color {} // //# 20: compile-time error
-class Rainbow implements Color {} // //# 21: compile-time error
-class Rainbow extends List with Color {} // //# 22: compile-time error
-
-main() {
-  Nada x; //# 01: continued
-  var x = ComeAgain.zipfel; // //# 02: continued
-  var x = ComeAgain.zipfel; // //# 03: continued
-  var x = ComeAgain.zipfel; // //# 04: continued
-  var x = ComeAgain.zipfel; // //# 05: continued
-  var x = ComeAgain.zipfel; // //# 06: continued
-  var x = Numbers.four; // //# 07: continued
-  var x = topLevelFunction.bla; // //# 09: continued
-  var x = C.bla; // //# 10: continued
-  var x = zzTop.Frank; // //# 11: continued
-
-  var x = new Rainbow(); // //# 20: continued
-  var x = new Rainbow(); // //# 21: continued
-  var x = new Rainbow(); // //# 22: continued
-
-  // It is a compile-time error to explicitly instantiate an enum instance.
-  var x = new Color(); // //# 30: compile-time error
-}
diff --git a/tests/language_2/enum/value_name_test.dart b/tests/language_2/enum/value_name_test.dart
deleted file mode 100644
index a6b46d5c012..00000000000
--- a/tests/language_2/enum/value_name_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-enum ErrorContext { general, name, description, targets }
-
-void main() {
-  Expect.equals(ErrorContext.name, ErrorContext.name);
-}
diff --git a/tests/language_2/exception/catch_liveness_test.dart b/tests/language_2/exception/catch_liveness_test.dart
deleted file mode 100644
index da58334fccd..00000000000
--- a/tests/language_2/exception/catch_liveness_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-@pragma('dart2js:assumeDynamic')
-@pragma('dart2js:noInline')
-foo() => 1;
-
-@pragma('dart2js:assumeDynamic')
-@pragma('dart2js:noInline')
-throwException() => throw 'x';
-
-main() {
-  var x = 10;
-  var e2 = null;
-  try {
-    var t = foo();
-    throwException();
-    print(t);
-    x = 3;
-  } catch (e) {
-    Expect.equals(10, x);
-    e2 = e;
-  }
-  Expect.equals(10, x);
-  Expect.equals('x', e2);
-}
diff --git a/tests/language_2/exception/code_after_try_is_executed_test.dart b/tests/language_2/exception/code_after_try_is_executed_test.dart
deleted file mode 100644
index a1f3d6b3690..00000000000
--- a/tests/language_2/exception/code_after_try_is_executed_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test that the runtime still runs the code after a try/catch. The
-// test cannot use Expect.throws, because Expect.throws uses the same
-// pattern.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  var exception;
-  try {
-    throw 'foo';
-  } on String catch (ex) {
-    exception = ex;
-  }
-  Expect.isTrue(exception is String);
-  throw 'foo'; //# 01: runtime error
-}
diff --git a/tests/language_2/exception/exception_test.dart b/tests/language_2/exception/exception_test.dart
deleted file mode 100644
index 9f60b8ae968..00000000000
--- a/tests/language_2/exception/exception_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class ExceptionTest {
-  static testMain() {
-    int i = 0;
-    try {
-      throw "Hello";
-    } on String catch (s) {
-      print(s);
-      i += 10;
-    }
-
-    try {
-      throw "bye";
-    } on String catch (s) {
-      print(s);
-      i += 10;
-    }
-    Expect.equals(20, i);
-
-    bool correctCatch = false;
-    try {
-      // This used to throw a NullThrownError but that error was removed in
-      // Dart 3.0. Now it throws a TypeError.
-      throw null;
-    } on String catch (s) {
-      correctCatch = false;
-    } on TypeError catch (e) {
-      correctCatch = true;
-    } catch (x) {
-      correctCatch = false;
-    }
-    Expect.isTrue(correctCatch);
-  }
-}
-
-main() {
-  ExceptionTest.testMain();
-}
diff --git a/tests/language_2/exception/finally10_test.dart b/tests/language_2/exception/finally10_test.dart
deleted file mode 100644
index 447f196d192..00000000000
--- a/tests/language_2/exception/finally10_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to not treat the finally
-// block as a successor of a catch block that throws.
-
-import "package:expect/expect.dart";
-
-class A {
-  var field;
-  start() {}
-  stop() {
-    field = 42;
-  }
-}
-
-class B {
-  var totalCompileTime = new A();
-  var runCompiler = new Object();
-
-  run() {
-    totalCompileTime.start();
-    try {
-      throw 'foo';
-    } catch (exception) {
-      // Use [runCompiler] twice to ensure it will have a local
-      // variable.
-      runCompiler.toString();
-      runCompiler.toString();
-      rethrow;
-    } finally {
-      totalCompileTime.stop();
-    }
-  }
-}
-
-main() {
-  var b = new B();
-  try {
-    b.run();
-    throw 'Expected exception';
-  } catch (exception) {
-    // Expected exception.
-  }
-
-  Expect.equals(42, b.totalCompileTime.field);
-}
diff --git a/tests/language_2/exception/finally11_test.dart b/tests/language_2/exception/finally11_test.dart
deleted file mode 100644
index 73b6b73486c..00000000000
--- a/tests/language_2/exception/finally11_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to not treat the finally
-// block as a successor of a nested try block.
-
-import "package:expect/expect.dart";
-
-class A {
-  var field;
-  start() {}
-  stop() {
-    field = 42;
-  }
-}
-
-class B {
-  var totalCompileTime = new A();
-  var runCompiler = new Object();
-
-  run() {
-    totalCompileTime.start();
-    try {
-      throw 'foo';
-    } catch (exception) {
-      try {
-        // Use [runCompiler] twice to ensure it will have a local
-        // variable.
-        runCompiler.toString();
-        runCompiler.toString();
-      } catch (exception) {}
-      rethrow;
-    } finally {
-      totalCompileTime.stop();
-    }
-  }
-}
-
-main() {
-  var b = new B();
-  try {
-    b.run();
-    throw 'Expected exception';
-  } catch (exception) {
-    // Expected exception.
-  }
-
-  Expect.equals(42, b.totalCompileTime.field);
-}
diff --git a/tests/language_2/exception/finally12_test.dart b/tests/language_2/exception/finally12_test.dart
deleted file mode 100644
index 8cf31c2246e..00000000000
--- a/tests/language_2/exception/finally12_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to not treat the finally
-// block as a successor of a nested try block.
-
-import "package:expect/expect.dart";
-
-var a;
-
-foo() {
-  var b = a == 8; // This should not be GVN'ed.
-  while (!b) {
-    try {
-      try {} finally {
-        a = 8;
-        break;
-      }
-    } finally {
-      return a == 8;
-    }
-  }
-}
-
-main() {
-  Expect.isTrue(foo());
-}
diff --git a/tests/language_2/exception/finally1_test.dart b/tests/language_2/exception/finally1_test.dart
deleted file mode 100644
index 624b58f3165..00000000000
--- a/tests/language_2/exception/finally1_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing execution of finally blocks on
-// control flow breaks because of 'return', 'continue' etc.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Helper {
-  Helper() : i = 0 {}
-
-  int f1() {
-    try {
-      int j;
-      j = func();
-      i = 1;
-      return i; // Value of i on return is 1.
-    } finally {
-      i = i + 800; // Should get executed on return.
-    }
-    return i + 200; // Should not get executed.
-  }
-
-  static int func() {
-    int i = 0;
-    while (i < 10) {
-      i++;
-    }
-    return i;
-  }
-
-  int i;
-}
-
-class ExecuteFinally1Test {
-  static testMain() {
-    Helper obj = new Helper();
-    Expect.equals(1, obj.f1());
-    Expect.equals(801, obj.i);
-  }
-}
-
-main() {
-  ExecuteFinally1Test.testMain();
-}
diff --git a/tests/language_2/exception/finally2_test.dart b/tests/language_2/exception/finally2_test.dart
deleted file mode 100644
index d6684e5222e..00000000000
--- a/tests/language_2/exception/finally2_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing execution of finally blocks on
-// control flow breaks because of 'return', 'continue' etc.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Helper {
-  Helper() : i = 0 {}
-
-  int f1() {
-    try {
-      int j;
-      j = func();
-      try {
-        i = 1;
-        return i; // Value of i is 1 on return.
-      } finally {
-        i = i + 400; // Should get executed when we return.
-      }
-      i = 2; // Should not get executed.
-      return i;
-    } finally {
-      i = i + 800; // Should get executed when we return.
-    }
-    return i + 200; // Should not get executed.
-  }
-
-  static int func() {
-    int i = 0;
-    while (i < 10) {
-      i++;
-    }
-    return i;
-  }
-
-  int i;
-}
-
-class ExecuteFinally2Test {
-  static testMain() {
-    Helper obj = new Helper();
-    Expect.equals(1, obj.f1());
-    Expect.equals(1201, obj.i);
-  }
-}
-
-main() {
-  ExecuteFinally2Test.testMain();
-}
diff --git a/tests/language_2/exception/finally3_test.dart b/tests/language_2/exception/finally3_test.dart
deleted file mode 100644
index 341b3628b4c..00000000000
--- a/tests/language_2/exception/finally3_test.dart
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing execution of finally blocks on
-// control flow breaks because of 'return', 'continue' etc.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Helper {
-  Helper() : i = 0 {}
-
-  int f1() {
-    try {
-      try {
-        int j;
-        j = func();
-        L1:
-        while (i <= 0) {
-          if (i == 0) {
-            try {
-              i = 1;
-              func();
-              try {
-                int j;
-                j = func();
-                while (j < 50) {
-                  j += func();
-                  if (j > 30) {
-                    continue L1; // Break out of nested try blocks.
-                  }
-                }
-                i = 200000; // Should not get executed.
-              } finally {
-                i = i + 200; // Should get executed when we break out.
-              }
-            } finally {
-              i = i + 400; // Should get executed when we break out.
-            }
-          }
-        }
-      } finally {
-        i = i + 800; // Should get executed as normal control flow.
-      }
-      return i; // Value of i should be 1401.
-    } finally {
-      i = i + 1600; // Should get executed as part of return above.
-    }
-    i = i + 2000000; // Should not get executed.
-    return 1;
-  }
-
-  static int func() {
-    int i = 0;
-    while (i < 10) {
-      i++;
-    }
-    return i;
-  }
-
-  int i;
-}
-
-class ExecuteFinally3Test {
-  static testMain() {
-    Helper obj = new Helper();
-    Expect.equals(1401, obj.f1());
-    Expect.equals(3001, obj.i);
-  }
-}
-
-main() {
-  ExecuteFinally3Test.testMain();
-}
diff --git a/tests/language_2/exception/finally4_test.dart b/tests/language_2/exception/finally4_test.dart
deleted file mode 100644
index ba159b7a6f4..00000000000
--- a/tests/language_2/exception/finally4_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing execution of finally blocks on
-// control flow breaks because of 'return', 'continue' etc.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Helper {
-  Helper() : i = 0 {}
-
-  int f1() {
-    try {
-      int j;
-      j = func();
-      i = 1;
-    } finally {
-      i = i + 10;
-    }
-    return i + 200; // Should return here with i = 211.
-    try {
-      int j;
-      j = func();
-    } finally {
-      i = i + 10; // Should not get executed as part of return above.
-    }
-  }
-
-  static int func() {
-    int i = 0;
-    while (i < 10) {
-      i++;
-    }
-    return i;
-  }
-
-  int i;
-}
-
-class ExecuteFinally4Test {
-  static testMain() {
-    Helper obj = new Helper();
-    Expect.equals(211, obj.f1());
-    Expect.equals(11, obj.i);
-  }
-}
-
-main() {
-  ExecuteFinally4Test.testMain();
-}
diff --git a/tests/language_2/exception/finally5_test.dart b/tests/language_2/exception/finally5_test.dart
deleted file mode 100644
index d5a052eb2bd..00000000000
--- a/tests/language_2/exception/finally5_test.dart
+++ /dev/null
@@ -1,72 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing execution of finally blocks on
-// control flow breaks because of 'return', 'continue' etc.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Helper {
-  Helper() : i = 0 {}
-
-  int f1(int param) {
-    if (param == 0) {
-      try {
-        int j;
-        j = func();
-        try {
-          i = 1;
-          return i; // Value of i is 1 on return.
-        } finally {
-          i = i + 400; // Should get executed when we return.
-        }
-        i = 2; // Should not get executed.
-        return i;
-      } finally {
-        i = i + 800; // Should get executed when we return.
-      }
-      return i + 200; // Should not get executed.
-    }
-    try {
-      int j;
-      j = func();
-      try {
-        i = 4;
-        return i; // Value of i is 1 on return.
-      } finally {
-        i = i + 100; // Should get executed when we return.
-      }
-      i = 2; // Should not get executed.
-      return i;
-    } finally {
-      i = i + 200; // Should get executed when we return.
-    }
-    return i + 200; // Should not get executed.
-  }
-
-  static int func() {
-    int i = 0;
-    while (i < 10) {
-      i++;
-    }
-    return i;
-  }
-
-  int i;
-}
-
-class ExecuteFinally5Test {
-  static testMain() {
-    Helper obj = new Helper();
-    Expect.equals(1, obj.f1(0));
-    Expect.equals(1201, obj.i);
-    Expect.equals(4, obj.f1(1));
-    Expect.equals(304, obj.i);
-  }
-}
-
-main() {
-  ExecuteFinally5Test.testMain();
-}
diff --git a/tests/language_2/exception/finally6_test.dart b/tests/language_2/exception/finally6_test.dart
deleted file mode 100644
index 1e8407ba143..00000000000
--- a/tests/language_2/exception/finally6_test.dart
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing execution of finally blocks on
-// control flow breaks because of 'return', 'continue' etc.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Helper {
-  Helper() : i = 0 {}
-
-  int f1() {
-    try {
-      try {
-        int j;
-        j = func();
-        L1:
-        while (i <= 0) {
-          if (i == 0) {
-            try {
-              i = 1;
-              func();
-              try {
-                int j;
-                j = func();
-                L1:
-                while (j < 50) {
-                  j += func();
-                  if (j > 30) {
-                    break L1; // Break out of nested try blocks.
-                  }
-                }
-                i += 200000; // Should get executed.
-              } finally {
-                i = i + 200; // Should get executed as normal control flow.
-              }
-            } finally {
-              i = i + 400; // Should get executed as normal control flow.
-            }
-          }
-        }
-      } finally {
-        i = i + 800; // Should get executed as normal control flow.
-      }
-      return i; // Value of i should be 201401.
-    } finally {
-      i = i + 1600; // Should get executed as part of return above.
-    }
-    i = i + 2000000; // Should not get executed.
-    return 1;
-  }
-
-  static int func() {
-    int i = 0;
-    while (i < 10) {
-      i++;
-    }
-    return i;
-  }
-
-  int i;
-}
-
-class ExecuteFinally6Test {
-  static testMain() {
-    Helper obj = new Helper();
-    Expect.equals(201401, obj.f1());
-    Expect.equals(203001, obj.i);
-  }
-}
-
-main() {
-  ExecuteFinally6Test.testMain();
-}
diff --git a/tests/language_2/exception/finally7_test.dart b/tests/language_2/exception/finally7_test.dart
deleted file mode 100644
index 2fe426b44d0..00000000000
--- a/tests/language_2/exception/finally7_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing execution of finally blocks after an exception
-// is thrown from inside a local function capturing a variable.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class MyException {
-  const MyException(String message) : message_ = message;
-  final String message_;
-}
-
-class Helper {
-  static int f1(int k) {
-    var b;
-    try {
-      var a = new List<dynamic>.filled(10, null);
-      int i = 0;
-      while (i < 10) {
-        int j = i;
-        a[i] = () {
-          if (j == 5) {
-            throw new MyException("Test for exception being thrown");
-          }
-          k += 10;
-          return j;
-        };
-        if (i == 0) {
-          b = a[i];
-        }
-        i++;
-      }
-      for (int i = 0; i < 10; i++) {
-        a[i]();
-      }
-    } on MyException catch (exception) {
-      k += 100;
-      print(exception.message_);
-      b();
-    } finally {
-      k += 1000;
-      b();
-    }
-    return k;
-  }
-}
-
-class ExecuteFinally7Test {
-  static testMain() {
-    Expect.equals(1171, Helper.f1(1));
-  }
-}
-
-main() {
-  ExecuteFinally7Test.testMain();
-}
diff --git a/tests/language_2/exception/finally8_test.dart b/tests/language_2/exception/finally8_test.dart
deleted file mode 100644
index f595151ea66..00000000000
--- a/tests/language_2/exception/finally8_test.dart
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// This test ensures that the finally block executes correctly when
-// there are throw, break and return statements in the finally block.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Hello {
-  static var sum;
-
-  static foo() {
-    sum = 0;
-    try {
-      sum += 1;
-      return 'hi';
-    } finally {
-      sum += 1;
-      throw 'ball';
-      sum += 1;
-    }
-  }
-
-  static foo1() {
-    bool loop = true;
-    sum = 0;
-    L:
-    while (loop) {
-      try {
-        sum += 1;
-        return 'hi';
-      } finally {
-        sum += 1;
-        break L;
-        sum += 1;
-      }
-    }
-  }
-
-  static foo2() {
-    bool loop = true;
-    sum = 0;
-    try {
-      sum += 1;
-      return 'hi';
-    } finally {
-      sum += 1;
-      return 10;
-      sum += 1;
-    }
-  }
-
-  static foo3() {
-    sum = 0;
-    try {
-      sum += 1;
-      return 'hi';
-    } finally {
-      sum += 1;
-      return 10;
-      sum += 1;
-    }
-  }
-
-  static void main() {
-    foo1();
-    Expect.equals(2, sum);
-    foo2();
-    Expect.equals(2, sum);
-    foo3();
-    Expect.equals(2, sum);
-    try {
-      foo();
-    } catch (e) {}
-    Expect.equals(2, sum);
-  }
-}
-
-main() {
-  Hello.main();
-}
diff --git a/tests/language_2/exception/finally9_test.dart b/tests/language_2/exception/finally9_test.dart
deleted file mode 100644
index d98f7b06bcd..00000000000
--- a/tests/language_2/exception/finally9_test.dart
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// This test ensures that the finally block executes correctly when
-// there are throw, break and return statements in the finally block.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Hello {
-  static var sum;
-
-  static foo() {
-    sum = 0;
-    try {
-      sum += 1;
-      return 'hi';
-    } catch (e) {
-      sum += 1;
-      throw 'ball';
-      sum += 1;
-    } finally {
-      sum += 1;
-      throw 'ball';
-      sum += 1;
-    }
-  }
-
-  static foo1() {
-    bool loop = true;
-    sum = 0;
-    L:
-    while (loop) {
-      try {
-        sum += 1;
-        return 'hi';
-      } catch (ex) {
-        sum += 1;
-      } finally {
-        try {
-          L1:
-          while (loop) {
-            sum += 1;
-            break L;
-            sum += 1;
-          }
-        } catch (ex) {
-          sum += 1;
-        } finally {
-          sum += 1;
-        }
-      }
-    }
-  }
-
-  static void main() {
-    foo1();
-    Expect.equals(3, sum);
-    try {
-      foo();
-    } catch (e) {
-      // Ignore.
-    }
-    Expect.equals(2, sum);
-  }
-}
-
-main() {
-  Hello.main();
-}
diff --git a/tests/language_2/exception/finally_test.dart b/tests/language_2/exception/finally_test.dart
deleted file mode 100644
index bf4c324edd8..00000000000
--- a/tests/language_2/exception/finally_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test for a bug in dart2js where the update of a field in a try
-// block would not be seen by the finally block. See dartbug.com/5517.
-
-class A {
-  int i;
-  A() : i = 42;
-
-  foo() {
-    bool executedFinally = false;
-    if (i == 42) {
-      try {
-        i = 12;
-      } finally {
-        Expect.equals(12, i);
-        executedFinally = true;
-      }
-    }
-    Expect.isTrue(executedFinally);
-  }
-}
-
-main() {
-  new A().foo();
-}
diff --git a/tests/language_2/exception/identity_test.dart b/tests/language_2/exception/identity_test.dart
deleted file mode 100644
index ec680bfce25..00000000000
--- a/tests/language_2/exception/identity_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that an object when thrown stays the same.
-
-class A {
-  A();
-}
-
-check(exception) {
-  try {
-    throw exception;
-  } catch (e) {
-    Expect.equals(exception, e);
-  }
-}
-
-main() {
-  check("str");
-  check(new A());
-  check(1);
-  check(1.2);
-}
diff --git a/tests/language_2/exception/in_increment_test.dart b/tests/language_2/exception/in_increment_test.dart
deleted file mode 100644
index 715bceec255..00000000000
--- a/tests/language_2/exception/in_increment_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test throws exception in the middle of the increment operation, the setter
-// part of the instance field increment never completes.
-// VMOptions=--optimization-counter-threshold=10
-
-// @dart = 2.9
-
-main() {
-  var a = new A();
-  a.field = new A();
-  for (int i = 0; i < 20; i++) {
-    try {
-      a.foo(i);
-    } catch (e) {
-      // Ignore.
-    }
-  }
-}
-
-class A {
-  var field;
-  foo(i) {
-    field++; // throw exception
-  }
-}
diff --git a/tests/language_2/exception/multiple_breaks_crossing_finally_test.dart b/tests/language_2/exception/multiple_breaks_crossing_finally_test.dart
deleted file mode 100644
index 522d7fcefd3..00000000000
--- a/tests/language_2/exception/multiple_breaks_crossing_finally_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-String test(int n) {
-  String s = "$n";
-  a:
-  {
-    b:
-    {
-      try {
-        if (n == 1) {
-          break a;
-        } else {
-          break b;
-        }
-        s += "/";
-      } finally {
-        s += "-";
-      }
-      s += "*";
-    }
-    return s + "b";
-  }
-  return s + "a";
-}
-
-main() {
-  Expect.equals("1-a", test(1));
-  Expect.equals("2-b", test(2));
-}
diff --git a/tests/language_2/exception/on_catch_malformed_type_test.dart b/tests/language_2/exception/on_catch_malformed_type_test.dart
deleted file mode 100644
index 75a2fd867ff..00000000000
--- a/tests/language_2/exception/on_catch_malformed_type_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that malformed types in on-catch are handled correctly, that is,
-// throws a type error in both production and checked mode.
-
-import 'package:expect/expect.dart';
-
-catchUnresolvedBefore() {
-  try {
-    throw "foo";
-    Expect.fail("This code shouldn't be executed");
-  } on String catch (oks) {
-    // This is tested before the catch block below.
-  } on Unavailable catch (ex) {
-  //   ^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.NON_TYPE_IN_CATCH_CLAUSE
-  // [cfe] 'Unavailable' isn't a type.
-    Expect.fail("This code shouldn't be executed");
-  }
-}
-
-catchUnresolvedAfter() {
-  Expect.throwsTypeError(() {
-    try {
-      throw "foo";
-      Expect.fail("This code shouldn't be executed");
-    } on Unavailable catch (ex) {
-    //   ^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.NON_TYPE_IN_CATCH_CLAUSE
-    // [cfe] 'Unavailable' isn't a type.
-
-      // This is tested before the catch block below.
-      // In both production and checked mode the test causes a type error.
-    } on String catch (oks) {
-      Expect.fail("This code shouldn't be executed");
-    }
-  });
-}
-
-main() {
-  catchUnresolvedBefore();
-  catchUnresolvedAfter();
-}
diff --git a/tests/language_2/exception/rethrow_test.dart b/tests/language_2/exception/rethrow_test.dart
deleted file mode 100644
index 2379a94bab6..00000000000
--- a/tests/language_2/exception/rethrow_test.dart
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing throw statement
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class MyException {
-  const MyException();
-}
-
-class OtherException {
-  const OtherException();
-}
-
-class RethrowTest {
-  MyException currentException;
-
-  void throwException() {
-    currentException = new MyException();
-    throw currentException;
-  }
-
-  void testRethrowPastUncaught() {
-    try {
-      try {
-        try {
-          throwException();
-          Expect.fail("Should have thrown an exception");
-        } catch (e) {
-          Expect.equals(true, identical(e, currentException));
-          rethrow;
-          Expect.fail("Should have thrown an exception");
-        }
-      } on OtherException catch (e) {
-        Expect.fail("Should not have caught OtherException");
-      }
-    } catch (e) {
-      Expect.equals(true, identical(e, currentException));
-    }
-  }
-
-  void testRethrow() {
-    try {
-      try {
-        throwException();
-        Expect.fail("Should have thrown an exception");
-      } catch (e) {
-        Expect.equals(true, identical(e, currentException));
-        rethrow;
-        Expect.fail("Should have thrown an exception");
-      }
-    } catch (e) {
-      Expect.equals(true, identical(e, currentException));
-    }
-  }
-}
-
-main() {
-  RethrowTest t = new RethrowTest();
-  t.testRethrow();
-  t.testRethrowPastUncaught();
-}
diff --git a/tests/language_2/exception/throw1_test.dart b/tests/language_2/exception/throw1_test.dart
deleted file mode 100644
index 60492b086ca..00000000000
--- a/tests/language_2/exception/throw1_test.dart
+++ /dev/null
@@ -1,84 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing throw statement
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class TestException {
-  String getMessage();
-}
-
-class MyException implements TestException {
-  const MyException([String message = ""]) : message_ = message;
-  String getMessage() {
-    return message_;
-  }
-
-  final String message_;
-}
-
-class MyException2 implements TestException {
-  const MyException2([String message = ""]) : message_ = message;
-  String getMessage() {
-    return message_;
-  }
-
-  final String message_;
-}
-
-class MyException3 implements TestException {
-  const MyException3([String message = ""]) : message_ = message;
-  String getMessage() {
-    return message_;
-  }
-
-  final String message_;
-}
-
-class Helper {
-  static int f1(int i) {
-    try {
-      int j;
-      j = func();
-      if (j > 0) {
-        throw new MyException2("Test for exception being thrown");
-      }
-    } on MyException3 catch (exception) {
-      i = 100;
-      print(exception.getMessage());
-    } on TestException catch (exception) {
-      i = 50;
-      print(exception.getMessage());
-    } on MyException2 catch (exception) {
-      i = 150;
-      print(exception.getMessage());
-    } on MyException catch (exception) {
-      i = 200;
-      print(exception.getMessage());
-    } finally {
-      i = i + 800;
-    }
-    return i;
-  }
-
-  static int func() {
-    int i = 0;
-    while (i < 10) {
-      i++;
-    }
-    return i;
-  }
-}
-
-class Throw1Test {
-  static testMain() {
-    Expect.equals(850, Helper.f1(1));
-  }
-}
-
-main() {
-  Throw1Test.testMain();
-}
diff --git a/tests/language_2/exception/throw2_test.dart b/tests/language_2/exception/throw2_test.dart
deleted file mode 100644
index 975ed7833e9..00000000000
--- a/tests/language_2/exception/throw2_test.dart
+++ /dev/null
@@ -1,97 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing throw statement
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class TestException {
-  String getMessage();
-}
-
-class MyException implements TestException {
-  const MyException([String message = ""]) : message_ = message;
-  String getMessage() {
-    return message_;
-  }
-
-  final String message_;
-}
-
-class MyException2 implements TestException {
-  const MyException2([String message = ""]) : message_ = message;
-  String getMessage() {
-    return message_;
-  }
-
-  final String message_;
-}
-
-class MyException3 implements TestException {
-  const MyException3([String message = ""]) : message_ = message;
-  String getMessage() {
-    return message_;
-  }
-
-  final String message_;
-}
-
-class Helper {
-  static int f1(int i) {
-    try {
-      int j;
-      j = func();
-    } on MyException3 catch (exception) {
-      i = 100;
-      print(exception.getMessage());
-    } on MyException2 catch (exception) {
-      try {
-        i = func2();
-        i = 200;
-      } on TestException catch (exception) {
-        i = 50;
-      }
-      print(exception.getMessage());
-    } on MyException catch (exception) {
-      i = func2();
-      print(exception.getMessage());
-    } finally {
-      i = i + 800;
-    }
-    return i;
-  }
-
-  static int func() {
-    int i = 0;
-    while (i < 10) {
-      i++;
-    }
-    if (i > 0) {
-      throw new MyException2("Test for exception being thrown");
-    }
-    return i;
-  }
-
-  static int func2() {
-    int i = 0;
-    while (i < 10) {
-      i++;
-    }
-    if (i > 0) {
-      throw new MyException2("Test for exception being thrown");
-    }
-    return i;
-  }
-}
-
-class Throw2Test {
-  static testMain() {
-    Expect.equals(850, Helper.f1(1));
-  }
-}
-
-main() {
-  Throw2Test.testMain();
-}
diff --git a/tests/language_2/exception/throw3_test.dart b/tests/language_2/exception/throw3_test.dart
deleted file mode 100644
index 54c6b5cdf9c..00000000000
--- a/tests/language_2/exception/throw3_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing throw statement
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class MyException {
-  const MyException([String message = ""]) : message_ = message;
-  final String message_;
-}
-
-class Helper {
-  static int f1(int i) {
-    try {
-      int j;
-      i = 100;
-      i = func();
-      i = 200;
-    } on MyException catch (exception) {
-      i = 50;
-      print(exception.message_);
-    } finally {
-      i = i + 800;
-    }
-    return i;
-  }
-
-  static int func() {
-    try {
-      int i = 0;
-      while (i < 10) {
-        i++;
-      }
-      if (i > 0) {
-        throw new MyException("Test for exception being thrown");
-      }
-    } on MyException catch (ex) {
-      print(ex.message_);
-      rethrow; // Rethrow the exception.
-    }
-    return 10;
-  }
-}
-
-class Throw3Test {
-  static testMain() {
-    Expect.equals(850, Helper.f1(1));
-  }
-}
-
-main() {
-  Throw3Test.testMain();
-}
diff --git a/tests/language_2/exception/throw4_test.dart b/tests/language_2/exception/throw4_test.dart
deleted file mode 100644
index 2d1f37a2911..00000000000
--- a/tests/language_2/exception/throw4_test.dart
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing throw statement
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class MyException1 {
-  const MyException1([String message = "1"]) : message_ = message;
-  final String message_;
-}
-
-class MyException2 {
-  const MyException2([String message = "2"]) : message_ = message;
-  final String message_;
-}
-
-class MyException3 {
-  const MyException3([String message = "3"]) : message_ = message;
-  final String message_;
-}
-
-class Helper {
-  Helper() : i = 0 {}
-
-  int f1() {
-    int j = 0;
-    try {
-      j = func();
-    } on MyException3 catch (exception) {
-      i = i + 300;
-      print(exception.message_);
-    } on MyException2 catch (exception) {
-      i = i + 200;
-      print(exception.message_);
-    } on MyException1 catch (exception) {
-      i = i + 100;
-      print(exception.message_);
-    } finally {
-      i = i + 1000;
-    }
-    return i;
-  }
-
-  // No catch in the same function for the type of exception being thrown
-  // in the try block here. We expect the handler if checks to fall thru,
-  // the finally block to run and an implicit rethrow to happen.
-  int func() {
-    i = 0;
-    try {
-      while (i < 10) {
-        i++;
-      }
-      if (i > 0) {
-        throw new MyException1("Test for MyException1 being thrown");
-      }
-    } on MyException3 catch (exception) {
-      i = 300;
-      print(exception.message_);
-    } on MyException2 catch (exception) {
-      i = 200;
-      print(exception.message_);
-    } finally {
-      i = 800;
-    }
-    return i;
-  }
-
-  int i;
-}
-
-class Throw4Test {
-  static testMain() {
-    Expect.equals(1900, new Helper().f1());
-  }
-}
-
-main() {
-  Throw4Test.testMain();
-}
diff --git a/tests/language_2/exception/throw5_test.dart b/tests/language_2/exception/throw5_test.dart
deleted file mode 100644
index d77702279e5..00000000000
--- a/tests/language_2/exception/throw5_test.dart
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing throw statement
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class MyException1 {
-  const MyException1([String message = "1"]) : message_ = message;
-  final String message_;
-}
-
-class MyException2 {
-  const MyException2([String message = "2"]) : message_ = message;
-  final String message_;
-}
-
-class MyException3 {
-  const MyException3([String message = "3"]) : message_ = message;
-  final String message_;
-}
-
-class Helper {
-  static int f1(int i) {
-    try {
-      int j;
-      j = func();
-    } on MyException3 catch (exception) {
-      i = 300;
-      print(exception.message_);
-    } on MyException2 catch (exception) {
-      i = 200;
-      print(exception.message_);
-    } on MyException1 catch (exception) {
-      i = 100;
-      print(exception.message_);
-    } finally {
-      i = i + 800;
-    }
-    return i;
-  }
-
-  // No catch in the same function for the type of exception being thrown
-  // in the try block here. We expect the handler if checks to fall thru and
-  // implicit rethrow to happen.
-  static int func() {
-    int i = 0;
-    try {
-      while (i < 10) {
-        i++;
-      }
-      if (i > 0) {
-        throw new MyException1("Test for MyException1 being thrown");
-      }
-    } on MyException3 catch (exception) {
-      i = 300;
-      print(exception.message_);
-    } on MyException2 catch (exception) {
-      i = 200;
-      print(exception.message_);
-    }
-    return i;
-  }
-}
-
-class Throw5Test {
-  static testMain() {
-    Expect.equals(900, Helper.f1(1));
-  }
-}
-
-main() {
-  Throw5Test.testMain();
-}
diff --git a/tests/language_2/exception/throw6_test.dart b/tests/language_2/exception/throw6_test.dart
deleted file mode 100644
index 03385bad77f..00000000000
--- a/tests/language_2/exception/throw6_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing throw statement
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class MyException1 {
-  const MyException1([String message = "1"]) : message_ = message;
-  final String message_;
-}
-
-class Helper {
-  Helper() : i = 0 {}
-
-  int f1() {
-    int j = 0;
-    try {
-      j = func();
-    } catch (exception) {
-      i = i + 100;
-      print(exception.message_);
-    } finally {
-      i = i + 1000;
-    }
-    return i;
-  }
-
-  // No catch in the same function for the type of exception being thrown
-  // in the try block here. We expect the handler if checks to fall thru,
-  // the finally block to run and an implicit rethrow to happen.
-  int func() {
-    i = 0;
-    try {
-      while (i < 10) {
-        i++;
-      }
-      if (i > 0) {
-        throw new MyException1("Test for MyException1 being thrown");
-      }
-    } finally {
-      i = 800;
-    }
-    return i;
-  }
-
-  int i;
-}
-
-class Throw6Test {
-  static testMain() {
-    Expect.equals(1900, new Helper().f1());
-  }
-}
-
-main() {
-  Throw6Test.testMain();
-}
diff --git a/tests/language_2/exception/throw8_test.dart b/tests/language_2/exception/throw8_test.dart
deleted file mode 100644
index 8512611248b..00000000000
--- a/tests/language_2/exception/throw8_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing throw statement
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var finallyExecutionCount = 0;
-bar() {
-  try {
-    try {
-      return 499;
-    } catch (e, st) {
-      rethrow;
-    }
-  } finally {
-    finallyExecutionCount++;
-    throw "quit finally with throw";
-  }
-}
-
-main() {
-  bool hasThrown = false;
-  try {
-    bar();
-  } catch (x) {
-    hasThrown = true;
-    Expect.equals(1, finallyExecutionCount);
-  }
-  Expect.isTrue(hasThrown);
-}
diff --git a/tests/language_2/exception/throw_expr_test.dart b/tests/language_2/exception/throw_expr_test.dart
deleted file mode 100644
index ca11b65e89c..00000000000
--- a/tests/language_2/exception/throw_expr_test.dart
+++ /dev/null
@@ -1,113 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test program for testing throw expressions.
-
-void test1() {
-  var x = 6;
-  try {
-    throw x = 10;
-    x = 0;
-  } catch (e) {
-    Expect.equals(10, e);
-    Expect.equals(10, x);
-    x = 15;
-  }
-  Expect.equals(15, x);
-  x = 100;
-  try {
-    throw x++;
-    x = 0;
-  } catch (e) {
-    Expect.equals(100, e);
-    Expect.equals(101, x);
-    x = 150;
-  }
-  Expect.equals(150, x);
-}
-
-void test2() {
-  var x = 6;
-  try {
-    throw x + 4;
-  } catch (e) {
-    Expect.equals(10, e);
-    Expect.equals(6, x);
-    x = 15;
-  }
-  Expect.equals(15, x);
-}
-
-foo(x, y) => throw "foo" "$x";
-
-bar(x, y) => throw "foo" "${throw x}";
-
-class Q {
-  var qqq;
-  f(x) {
-    qqq = x;
-  }
-
-  Q get nono => throw "nono";
-}
-
-void test3() {
-  try {
-    throw throw throw "up";
-  } catch (e) {
-    Expect.equals("up", e);
-  }
-
-  dynamic x = 10;
-  try {
-    foo(x = 12, throw 7);
-  } catch (e) {
-    Expect.equals(7, e);
-    Expect.equals(12, x);
-  }
-
-  x = 10;
-  try {
-    foo(x++, 10);
-  } catch (e) {
-    Expect.equals("foo10", e);
-    Expect.equals(11, x);
-  }
-
-  x = 100;
-  try {
-    bar(++x, 10);
-  } catch (e) {
-    Expect.equals(101, e);
-    Expect.equals(101, x);
-  }
-
-  x = null;
-  try {
-    x = new Q();
-    x
-      ..f(11)
-      ..qqq = throw 77
-      ..f(22);
-  } catch (e) {
-    Expect.equals(77, e);
-    Expect.equals(11, x.qqq);
-  }
-}
-
-void test4() {
-  var q = new Q();
-  Expect.throws(() => q.nono, (e) => e == "nono");
-}
-
-main() {
-  test1();
-  test2();
-  test3();
-  test4();
-}
diff --git a/tests/language_2/exception/throw_test.dart b/tests/language_2/exception/throw_test.dart
deleted file mode 100644
index 987a10bab83..00000000000
--- a/tests/language_2/exception/throw_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing throw statement
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class MyException {
-  const MyException(String this.message_);
-  final String message_;
-}
-
-class Helper {
-  static int f1(int i) {
-    try {
-      int j;
-      j = func();
-      if (j > 0) {
-        throw new MyException("Test for exception being thrown");
-      }
-    } on MyException catch (exception) {
-      i = 100;
-      print(exception.message_);
-    } finally {
-      i = i + 800;
-    }
-    return i;
-  }
-
-  static int func() {
-    int i = 0;
-    while (i < 10) {
-      i++;
-    }
-    return i;
-  }
-}
-
-class ThrowTest {
-  static testMain() {
-    Expect.equals(900, Helper.f1(1));
-  }
-}
-
-main() {
-  ThrowTest.testMain();
-}
diff --git a/tests/language_2/exception/try_catch2_test.dart b/tests/language_2/exception/try_catch2_test.dart
deleted file mode 100644
index 1482009fad1..00000000000
--- a/tests/language_2/exception/try_catch2_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing try/catch statement without any exceptions
-// being thrown. (Nested try/catch blocks).
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class TestException {
-  String getMessage();
-}
-
-class MyException implements TestException {
-  const MyException([String message = ""]) : message_ = message;
-  String getMessage() {
-    return message_;
-  }
-
-  final String message_;
-}
-
-class StackTrace {
-  StackTrace() {}
-}
-
-class Helper {
-  static int f1(int i) {
-    try {
-      int j;
-      j = f2();
-      i = i + 1;
-      try {
-        j = f2() + f3() + j;
-        i = i + 1;
-      } on TestException catch (e, trace) {
-        j = 50;
-      }
-      j = f3() + j;
-    } on MyException catch (exception) {
-      i = 100;
-    } on TestException catch (e, trace) {
-      i = 200;
-    }
-    return i;
-  }
-
-  static int f2() {
-    return 2;
-  }
-
-  static int f3() {
-    int i = 0;
-    while (i < 10) {
-      i++;
-    }
-    return i;
-  }
-}
-
-class TryCatch2Test {
-  static testMain() {
-    Expect.equals(3, Helper.f1(1));
-  }
-}
-
-main() {
-  for (var i = 0; i < 20; i++) {
-    TryCatch2Test.testMain();
-  }
-}
diff --git a/tests/language_2/exception/try_catch3_test.dart b/tests/language_2/exception/try_catch3_test.dart
deleted file mode 100644
index 8cf79a7236f..00000000000
--- a/tests/language_2/exception/try_catch3_test.dart
+++ /dev/null
@@ -1,128 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing try/catch statement without any exceptions
-// being thrown.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class TestException {
-  String getMessage();
-}
-
-class MyException implements TestException {
-  const MyException([String message = ""]) : this._message = message;
-  String getMessage() {
-    return _message;
-  }
-
-  final String _message;
-}
-
-class MyParameterizedException<U, V> implements TestException {
-  const MyParameterizedException([String message = ""])
-      : this._message = message;
-  String getMessage() {
-    return _message;
-  }
-
-  final String _message;
-}
-
-class StackTrace {
-  StackTrace() {}
-  printStackTrace(TestException ex) {
-    print(ex);
-  }
-}
-
-class Helper {
-  static int test1(int i) {
-    try {
-      int j;
-      j = f2();
-      j = f3();
-      try {
-        int k = f2();
-        f3();
-      } on MyException catch (ex) {
-        int i = 10;
-        print(i);
-      } on TestException catch (ex) {
-        int k = 10;
-        print(k);
-      }
-      try {
-        j = j + 24;
-      } catch (e) {
-        i = 300;
-        print(e.getMessage());
-      }
-      try {
-        j += 20;
-      } catch (e) {
-        i = 400;
-        print(e.getMessage());
-      }
-      try {
-        j += 40;
-      } catch (e) {
-        i = 600;
-        print(e.getMessage());
-      }
-      try {
-        j += 60;
-      } catch (e, trace) {
-        i = 700;
-        print(trace.toString());
-        print(e.getMessage());
-      }
-      try {
-        j += 80;
-      } on MyException catch (e) {
-        i = 500;
-        print(e.getMessage());
-      }
-    } on MyParameterizedException<String, TestException> catch (e, trace) {
-      i = 800;
-      print(trace.toString());
-      rethrow;
-    } on MyException catch (exception) {
-      i = 100;
-      print(exception.getMessage());
-    } on TestException catch (e, trace) {
-      i = 200;
-      print(trace.toString());
-    } finally {
-      i = 900;
-    }
-    return i;
-  }
-
-  static int f2() {
-    return 2;
-  }
-
-  static int f3() {
-    int i = 0;
-    while (i < 10) {
-      i++;
-    }
-    return i;
-  }
-}
-
-class TryCatchTest {
-  static testMain() {
-    Expect.equals(900, Helper.test1(1));
-  }
-}
-
-main() {
-  for (var i = 0; i < 20; i++) {
-    TryCatchTest.testMain();
-  }
-}
diff --git a/tests/language_2/exception/try_catch4_test.dart b/tests/language_2/exception/try_catch4_test.dart
deleted file mode 100644
index b1ed8cb1d03..00000000000
--- a/tests/language_2/exception/try_catch4_test.dart
+++ /dev/null
@@ -1,208 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check that our SSA graph does have the try body a predecessor of a
-// try/finally.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var a;
-
-foo1() {
-  var b = false;
-  var entered = false;
-  while (true) {
-    if (entered) return b;
-    b = 8 == a; // This expression should not be GVN'ed.
-    try {
-      a = 8;
-      return false;
-    } finally {
-      b = 8 == a;
-      entered = true;
-      continue;
-    }
-  }
-}
-
-doThrow() {
-  throw 2;
-}
-
-foo2() {
-  var b = false;
-  var entered = false;
-  while (true) {
-    if (entered) return b;
-    b = 8 == a; // This expression should not be GVN'ed.
-    try {
-      a = 8;
-      doThrow();
-      return false;
-    } catch (e) {
-      b = 8 == a;
-      entered = true;
-      continue;
-    }
-  }
-}
-
-foo3() {
-  var b = false;
-  var entered = false;
-  while (true) {
-    if (entered) return b;
-    b = 8 == a; // This expression should not be GVN'ed.
-    try {
-      doThrow();
-    } catch (e) {
-      a = 8;
-      entered = true;
-      return false;
-    } finally {
-      b = 8 == a;
-      entered = true;
-      continue;
-    }
-  }
-}
-
-foo4() {
-  var b = false;
-  var entered = false;
-  while (true) {
-    if (entered) return b;
-    b = 8 == a; // This expression should not be GVN'ed.
-    try {
-      a = 8;
-      break;
-    } finally {
-      b = 8 == a;
-      entered = true;
-      continue;
-    }
-  }
-}
-
-foo5() {
-  var b = false;
-  var entered = false;
-  while (true) {
-    if (entered) return b;
-    b = 8 == a; // This expression should not be GVN'ed.
-    try {
-      a = 8;
-      doThrow();
-      break;
-    } catch (e) {
-      b = 8 == a;
-      entered = true;
-      continue;
-    }
-  }
-}
-
-foo6() {
-  var b = false;
-  var entered = false;
-  while (true) {
-    if (entered) return b;
-    b = 8 == a; // This expression should not be GVN'ed.
-    try {
-      doThrow();
-    } catch (e) {
-      a = 8;
-      entered = true;
-      break;
-    } finally {
-      b = 8 == a;
-      entered = true;
-      continue;
-    }
-  }
-}
-
-foo7() {
-  var b = false;
-  var entered = false;
-  while (true) {
-    if (entered) return b;
-    b = 8 == a; // This expression should not be GVN'ed.
-    try {
-      a = 8;
-      continue;
-    } finally {
-      b = 8 == a;
-      entered = true;
-      continue;
-    }
-  }
-}
-
-foo8() {
-  var b = false;
-  var entered = false;
-  while (true) {
-    if (entered) return b;
-    b = 8 == a; // This expression should not be GVN'ed.
-    try {
-      a = 8;
-      doThrow();
-      continue;
-    } catch (e) {
-      b = 8 == a;
-      entered = true;
-      continue;
-    }
-  }
-}
-
-foo9() {
-  var b = false;
-  var entered = false;
-  while (true) {
-    if (entered) return b;
-    b = 8 == a; // This expression should not be GVN'ed.
-    try {
-      doThrow();
-    } catch (e) {
-      a = 8;
-      entered = true;
-      continue;
-    } finally {
-      b = 8 == a;
-      entered = true;
-      continue;
-    }
-  }
-}
-
-main_test() {
-  a = 0;
-  Expect.isTrue(foo1());
-  a = 0;
-  Expect.isTrue(foo2());
-  a = 0;
-  Expect.isTrue(foo3());
-  a = 0;
-  Expect.isTrue(foo4());
-  a = 0;
-  Expect.isTrue(foo5());
-  a = 0;
-  Expect.isTrue(foo6());
-  a = 0;
-  Expect.isTrue(foo7());
-  a = 0;
-  Expect.isTrue(foo8());
-  a = 0;
-  Expect.isTrue(foo9());
-}
-
-main() {
-  for (var i = 0; i < 20; i++) {
-    main_test();
-  }
-}
diff --git a/tests/language_2/exception/try_catch5_test.dart b/tests/language_2/exception/try_catch5_test.dart
deleted file mode 100644
index 192c6072e63..00000000000
--- a/tests/language_2/exception/try_catch5_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check that our SSA graph does have the try body a predecessor of a
-// try/finally.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var a;
-
-foo1() {
-  var b = false;
-  var entered = false;
-  while (true) {
-    if (entered) return b;
-    b = 8 == a; // This expression should not be GVN'ed.
-    try {
-      try {
-        a = 8;
-        return false;
-      } finally {
-        b = 8 == a;
-        entered = true;
-        continue;
-      }
-    } finally {
-      continue;
-    }
-  }
-}
-
-main() {
-  for (var i = 0; i < 20; i++) {
-    a = 0;
-    Expect.isTrue(foo1());
-  }
-}
diff --git a/tests/language_2/exception/try_catch_on_syntax_test.dart b/tests/language_2/exception/try_catch_on_syntax_test.dart
deleted file mode 100644
index e58b43eb3d3..00000000000
--- a/tests/language_2/exception/try_catch_on_syntax_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class MyException {}
-
-class MyException1 extends MyException {}
-
-class MyException2 extends MyException {}
-
-void test1() {
-  var foo = 0;
-  try {
-    throw new MyException1();
-  }
-  on on MyException2 catch (e) { } //# 02: syntax error
-  catch MyException2 catch (e) { } //# 03: syntax error
-  catch catch catch (e) { } //# 04: syntax error
-  on (e) { } //# 05: syntax error
-  catch MyException2 catch (e) { } //# 06: syntax error
-  on MyException2 catch (e) {
-    foo = 1;
-  } on MyException1 catch (e) {
-    foo = 2;
-  } on MyException catch (e) {
-    foo = 3;
-  }
-  on UndefinedClass //# 07: compile-time error
-  catch (e) {
-    foo = 4;
-  }
-  Expect.equals(2, foo);
-}
-
-testFinal() {
-  try {
-    throw "catch this!";
-  } catch (e, s) {
-    // Test that the error and stack trace variables are final.
-      e = null; // //# 10: compile-time error
-      s = null; // //# 11: compile-time error
-  }
-}
-
-main() {
-  test1();
-  testFinal();
-}
diff --git a/tests/language_2/exception/try_catch_optimized1_test.dart b/tests/language_2/exception/try_catch_optimized1_test.dart
deleted file mode 100644
index 41b56b0fc52..00000000000
--- a/tests/language_2/exception/try_catch_optimized1_test.dart
+++ /dev/null
@@ -1,292 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-maythrow(x) {
-  if (x == null) throw 42;
-  return 99;
-}
-
-f1(x) {
-  var result = 123;
-  try {
-    result = maythrow(x);
-    if (result > 100) throw 42;
-  } catch (e) {
-    Expect.equals(result, 123);
-    Expect.equals(42, e);
-    result = 0;
-  }
-  return result;
-}
-
-class A {
-  maythrow(x) {
-    if (x == null) throw 42;
-    return 99;
-  }
-}
-
-f2(x) {
-  var result = 123;
-  var a = new A();
-  try {
-    result++;
-    result = a.maythrow(x);
-  } catch (e) {
-    Expect.equals(124, result);
-    result = x;
-  }
-  return result;
-}
-
-f3(x, y) {
-  var result = 123;
-  var a = new A();
-  try {
-    result++;
-    result = a.maythrow(x);
-  } catch (e) {
-    result = y + 1; // Deopt on overflow
-  }
-  return result;
-}
-
-f4(x) {
-  try {
-    maythrow(x);
-  } catch (e) {
-    check_f4(e, "abc");
-  }
-}
-
-check_f4(e, s) {
-  if (e != 42) throw "ERROR";
-  if (s != "abc") throw "ERROR";
-}
-
-f5(x) {
-  try {
-    maythrow(x);
-  } catch (e) {
-    check_f5(e, "abc");
-  }
-
-  try {
-    maythrow(x);
-  } catch (e) {
-    check_f5(e, "abc");
-  }
-}
-
-check_f5(e, s) {
-  if (e != 42) throw "ERROR";
-  if (s != "abc") throw "ERROR";
-}
-
-f6(x, y) {
-  var a = x;
-  var b = y;
-  var c = 123;
-  check_f6(42, null, 1, 123, null, 1);
-  try {
-    maythrow(x);
-  } catch (e) {
-    check_f6(e, a, b, c, x, y);
-  }
-}
-
-check_f6(e, a, b, c, x, y) {
-  if (e != 42) throw "ERROR";
-  if (a != null) throw "ERROR";
-  if (b != 1) throw "ERROR";
-  if (c != 123) throw "ERROR";
-  if (x != null) throw "ERROR";
-  if (y != 1) throw "ERROR";
-}
-
-bool f7(String str) {
-  double d = double.parse(str);
-  var t = d;
-  try {
-    var a = d.toInt();
-    return false;
-  } on UnsupportedError catch (e) {
-    Expect.equals(true, identical(t, d));
-    return true;
-  }
-}
-
-f8(x, [a = 3, b = 4]) {
-  var c = 123;
-  var y = a;
-  try {
-    maythrow(x);
-  } catch (e, s) {
-    check_f8(e, s, a, b, c, x, y);
-  }
-}
-
-check_f8(e, s, a, b, c, x, y) {
-  if (e != 42) throw "ERROR";
-  if (s is! StackTrace) throw "ERROR";
-  if (a != 3) {
-    print(a);
-    throw "ERROR";
-  }
-  if (b != 4) throw "ERROR";
-  if (c != 123) throw "ERROR";
-  if (x != null) throw "ERROR";
-  if (y != a) throw "ERROR";
-}
-
-f9(x, [a = 3, b = 4]) {
-  var c = 123;
-  var y = a;
-  try {
-    if (x < a) maythrow(null);
-    maythrow(x);
-  } catch (e, s) {
-    check_f9(e, s, a, b, c, x, y);
-  }
-}
-
-check_f9(e, s, a, b, c, x, y) {
-  if (e != 42) throw "ERROR";
-  if (s is! StackTrace) throw "ERROR";
-  if (a != 3) {
-    print(a);
-    throw "ERROR";
-  }
-  if (b != 4) throw "ERROR";
-  if (c != 123) throw "ERROR";
-  if (x != null) throw "ERROR";
-  if (y != a) throw "ERROR";
-}
-
-f10(x, y) {
-  var result = 123;
-  try {
-    result = maythrow(x);
-  } catch (e) {
-    Expect.equals(123, result);
-    Expect.equals(0.5, y / 2.0);
-    result = 0;
-  }
-  return result;
-}
-
-f11(x) {
-  var result = 123;
-  var tmp = x;
-  try {
-    result = maythrow(x);
-    if (result > 100) throw 42;
-  } catch (e, s) {
-    Expect.equals(123, result);
-    Expect.equals(true, identical(tmp, x));
-    Expect.equals(true, s is StackTrace);
-    result = 0;
-  }
-  return result;
-}
-
-f12([x = null]) {
-  try {
-    maythrow(x);
-  } catch (e) {
-    check_f12(e, x);
-  }
-}
-
-check_f12(e, x) {
-  if (e != 42) throw "ERROR";
-  if (x != null) throw "ERROR";
-}
-
-f13(x) {
-  var result = 123;
-  try {
-    try {
-      result = maythrow(x);
-      if (result > 100) throw 42;
-    } catch (e) {
-      Expect.equals(123, result);
-      result = 0;
-    }
-    maythrow(x);
-  } catch (e) {
-    result++;
-  }
-  return result;
-}
-
-main() {
-  for (var i = 0; i < 20; i++) f1("abc");
-  Expect.equals(99, f1("abc"));
-  Expect.equals(0, f1(null));
-
-  for (var i = 0; i < 20; i++) f2("abc");
-  Expect.equals(99, f2("abc"));
-  Expect.equals(null, f2(null));
-
-  f3("123", 0);
-  for (var i = 0; i < 20; i++) f3(null, 0);
-  Expect.equals(99, f3("123", 0));
-  Expect.equals(0x40000000, f3(null, 0x3fffffff));
-
-  f4(null);
-  for (var i = 0; i < 20; i++) f4(123);
-  f4(null);
-
-  f5(null);
-  for (var i = 0; i < 20; i++) f5(123);
-  f5(null);
-
-  f6(null, 1);
-  for (var i = 0; i < 20; i++) f6(123, 1);
-  f6(null, 1);
-
-  f7("1.2");
-  f7("Infinity");
-  f7("-Infinity");
-  for (var i = 0; i < 20; i++) f7("1.2");
-  Expect.equals(false, f7("1.2"));
-  Expect.equals(true, f7("Infinity"));
-  Expect.equals(true, f7("-Infinity"));
-  Expect.equals(false, f7("123456789012345")); // Deopt.
-  for (var i = 0; i < 20; i++) f7("123456789012345");
-  Expect.equals(true, f7("Infinity"));
-  Expect.equals(true, f7("-Infinity"));
-
-  for (var i = 0; i < 20; i++) f8(null);
-  f8(null);
-
-  f9(5);
-  f9(5.0);
-  for (var i = 0; i < 20; i++) f9(3);
-  f9(3);
-
-  var y = 1.0;
-  Expect.equals(0, f10(null, y));
-  for (var i = 0; i < 20; i++) f10("abc", y);
-  Expect.equals(99, f10("abc", y));
-  Expect.equals(0, f10(null, y));
-
-  for (var i = 0; i < 20; i++) f11("abc");
-  Expect.equals(99, f11("abc"));
-  Expect.equals(0, f11(null));
-
-  for (var i = 0; i < 20; i++) f12(null);
-  f12(null);
-
-  f13(null);
-  for (var i = 0; i < 20; i++) f13("abc");
-  Expect.equals(99, f13("abc"));
-  Expect.equals(1, f13(null));
-}
diff --git a/tests/language_2/exception/try_catch_optimized2_test.dart b/tests/language_2/exception/try_catch_optimized2_test.dart
deleted file mode 100644
index 45672e70fd5..00000000000
--- a/tests/language_2/exception/try_catch_optimized2_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test allocation sinking with optimized try-catch.
-
-bar() {
-  // Should not be inlined.
-  try {} finally {}
-}
-
-foo(a) {
-  var r = 0;
-  for (var i in a) {
-    r += i;
-  }
-  try {
-    bar();
-  } finally {}
-  return r;
-}
-
-main() {
-  var a = [1, 2, 3];
-  for (var i = 0; i < 20; i++) foo(a);
-  Expect.equals(6, foo(a));
-}
diff --git a/tests/language_2/exception/try_catch_optimized3_test.dart b/tests/language_2/exception/try_catch_optimized3_test.dart
deleted file mode 100644
index 95f4dc94902..00000000000
--- a/tests/language_2/exception/try_catch_optimized3_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test unboxed double operations inside try-catch.
-foo(bool b) {
-  if (b) throw 123;
-}
-
-test_double(double x, bool b) {
-  try {
-    x += 1.0;
-    foo(b);
-  } catch (e) {
-    var result = x - 1.0;
-    Expect.equals(1.0, result);
-    return result;
-  }
-}
-
-main() {
-  for (var i = 0; i < 100; i++) test_double(1.0, false);
-  test_double(1.0, false);
-  Expect.equals(1.0, test_double(1.0, true));
-}
diff --git a/tests/language_2/exception/try_catch_optimized4_test.dart b/tests/language_2/exception/try_catch_optimized4_test.dart
deleted file mode 100644
index 0bad7eacf6e..00000000000
--- a/tests/language_2/exception/try_catch_optimized4_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test correct dead phi elimination with try catch.
-
-List<Object> a = [1, 2, 3, 4, 5];
-
-class MyError {}
-
-class M {
-  maythrow(i) {
-    try {
-      if (i <= 5) throw new MyError();
-    } catch (e) {
-      throw e;
-    }
-  }
-}
-
-loop_test() {
-  bool failed = false;
-  M m = new M();
-  for (Object i in a) {
-    try {
-      String res = m.maythrow(i);
-      failed = true;
-    } on MyError catch (e) {}
-    if (!identical(failed, false)) {
-      Expect.fail("");
-    }
-  }
-}
-
-main() {
-  for (var i = 0; i < 20; i++) loop_test();
-}
diff --git a/tests/language_2/exception/try_catch_optimized5_test.dart b/tests/language_2/exception/try_catch_optimized5_test.dart
deleted file mode 100644
index 90b61debdc2..00000000000
--- a/tests/language_2/exception/try_catch_optimized5_test.dart
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing try/catch statement without any exceptions
-// being thrown.
-// VMOptions=--optimization-counter-threshold=100 --no-background-compilation
-
-// @dart = 2.9
-
-// Test optional parameters updated inside try-catch
-
-import "package:expect/expect.dart";
-
-@pragma('vm:never-inline')
-m1(int b) {
-  if (b == 1) throw 123;
-}
-
-@pragma('vm:never-inline')
-m2(int b) {
-  if (b == 2) throw 456;
-}
-
-@pragma('vm:never-inline')
-test1(int b, [int state = 0]) {
-  try {
-    state++;
-    m1(b);
-    state++;
-    m2(b);
-    state++;
-  } on dynamic catch (e, s) {
-    if (b == 1 && state != 1) throw "fail1";
-    if (b == 2 && state != 2) throw "fail2";
-    if (b == 3 && state != 3) throw "fail3";
-    if (s is! StackTrace) throw "fail4";
-    return e;
-  }
-  return "no throw";
-}
-
-@pragma('vm:never-inline')
-test2(int b, [int state]) {
-  state = 0;
-  try {
-    state++;
-    m1(b);
-    state++;
-    m2(b);
-    state++;
-  } on dynamic catch (e, s) {
-    if (b == 1 && state != 1) throw "fail1";
-    if (b == 2 && state != 2) throw "fail2";
-    if (b == 3 && state != 3) throw "fail3";
-    if (s is! StackTrace) throw "fail4";
-    return e;
-  }
-  return "no throw";
-}
-
-main() {
-  for (var i = 0; i < 300; i++) {
-    Expect.equals("no throw", test1(0));
-  }
-  Expect.equals("no throw", test1(0));
-  Expect.equals(123, test1(1));
-  Expect.equals(456, test1(2));
-
-  for (var i = 0; i < 300; i++) {
-    Expect.equals("no throw", test2(0));
-  }
-  Expect.equals("no throw", test2(0));
-  Expect.equals(123, test2(1));
-  Expect.equals(456, test2(2));
-}
diff --git a/tests/language_2/exception/try_catch_osr_test.dart b/tests/language_2/exception/try_catch_osr_test.dart
deleted file mode 100644
index 43eb3216f9c..00000000000
--- a/tests/language_2/exception/try_catch_osr_test.dart
+++ /dev/null
@@ -1,104 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-// Test OSR in different places of a try-catch.
-
-import "package:expect/expect.dart";
-
-maythrow(x) {
-  try {
-    if (x == null) throw 42;
-    return 99;
-  } finally {}
-}
-
-f1() {
-  var s = 0, t = "abc";
-  for (var i = 0; i < 21; ++i) {
-    s += i;
-  }
-  try {
-    maythrow(null);
-  } catch (e) {
-    Expect.equals("abc", t);
-    Expect.equals(42, e);
-    s++;
-  }
-  return s;
-}
-
-f2([x = 1]) {
-  var s = 0, t = "abc";
-  try {
-    try {
-      for (var i = 0; i < 20; ++i) {
-        if (i == 18) maythrow(null);
-        s += x;
-      }
-    } catch (e) {
-      Expect.equals(1, x);
-      Expect.equals("abc", t);
-      Expect.equals(42, e);
-      s++;
-    }
-  } catch (e) {}
-  return s;
-}
-
-f3() {
-  var s = 0, t = "abc";
-  try {
-    maythrow(null);
-  } catch (e) {
-    Expect.equals("abc", t);
-    for (var i = 0; i < 21; ++i) {
-      s += i;
-    }
-    Expect.equals("abc", t);
-    Expect.equals(42, e);
-    return s;
-  }
-}
-
-f4() {
-  var s = 0, t = "abc";
-  try {
-    for (var i = 0; i < 21; ++i) {
-      if (i == 18) maythrow(null);
-      s += i;
-    }
-  } catch (e) {
-    Expect.equals("abc", t);
-    Expect.equals(42, e);
-    s++;
-  }
-  return s;
-}
-
-f5() {
-  var s, t = "abc";
-  try {
-    maythrow(null);
-  } catch (e) {
-    Expect.equals("abc", t);
-    Expect.equals(42, e);
-    s = 0;
-  }
-  for (var i = 0; i < 21; ++i) {
-    s += i;
-  }
-  Expect.equals("abc", t);
-  return s;
-}
-
-main() {
-  Expect.equals(211, f1());
-  Expect.equals(19, f2());
-  Expect.equals(210, f3());
-  Expect.equals(9 * 17 + 1, f4());
-  Expect.equals(210, f5());
-}
diff --git a/tests/language_2/exception/try_catch_regress_27483_test.dart b/tests/language_2/exception/try_catch_regress_27483_test.dart
deleted file mode 100644
index abb0fdc94f3..00000000000
--- a/tests/language_2/exception/try_catch_regress_27483_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing try/catch statement without any exceptions
-// being thrown.
-// VMOptions=--optimization-counter-threshold=100 --no-background-compilation
-
-// @dart = 2.9
-
-// Test local variables updated inside try-catch.
-
-import "package:expect/expect.dart";
-
-@pragma('vm:never-inline')
-m1(int b) {
-  if (b == 1) throw 123;
-}
-
-@pragma('vm:never-inline')
-m2(int b) {
-  if (b == 2) throw 456;
-}
-
-@pragma('vm:never-inline')
-test(b) {
-  var state = 0;
-  try {
-    state++;
-    m1(b);
-    state++;
-    m2(b);
-    state++;
-  } on dynamic catch (e, s) {
-    if (b == 1 && state != 1) throw "fail1";
-    if (b == 2 && state != 2) throw "fail2";
-    if (b == 3 && state != 3) throw "fail3";
-    return e;
-  }
-  return "no throw";
-}
-
-main() {
-  for (var i = 0; i < 300; i++) {
-    Expect.equals("no throw", test(0));
-  }
-  Expect.equals("no throw", test(0));
-  Expect.equals(123, test(1));
-  Expect.equals(456, test(2));
-}
diff --git a/tests/language_2/exception/try_catch_runtime_test.dart b/tests/language_2/exception/try_catch_runtime_test.dart
deleted file mode 100644
index 065a4aacf3d..00000000000
--- a/tests/language_2/exception/try_catch_runtime_test.dart
+++ /dev/null
@@ -1,201 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10
-
-import "package:expect/expect.dart";
-
-class MyException {}
-
-class MyException1 extends MyException {}
-
-class MyException2 extends MyException {}
-
-class TryCatchTest {
-  static void test1() {
-    var foo = 0;
-    try {
-      throw new MyException1();
-    } on MyException2 catch (e) {
-      foo = 1;
-    } on MyException1 catch (e) {
-      foo = 2;
-    } on MyException catch (e) {
-      foo = 3;
-    }
-    Expect.equals(2, foo);
-  }
-
-  static void test2() {
-    var foo = 0;
-    try {
-      throw new MyException1();
-    } on MyException2 catch (e) {
-      foo = 1;
-    } on MyException catch (e) {
-      foo = 2;
-    } on MyException1 catch (e) {
-      foo = 3;
-    }
-    Expect.equals(2, foo);
-  }
-
-  static void test3() {
-    var foo = 0;
-    try {
-      throw new MyException();
-    } on MyException2 catch (e) {
-      foo = 1;
-    } on MyException1 catch (e) {
-      foo = 2;
-    } on MyException catch (e) {
-      foo = 3;
-    }
-    Expect.equals(3, foo);
-  }
-
-  static void test4() {
-    var foo = 0;
-    try {
-      try {
-        throw new MyException();
-      } on MyException2 catch (e) {
-        foo = 1;
-      } on MyException1 catch (e) {
-        foo = 2;
-      }
-    } on MyException catch (e) {
-      Expect.equals(0, foo);
-      foo = 3;
-    }
-    Expect.equals(3, foo);
-  }
-
-  static void test5() {
-    var foo = 0;
-    try {
-      throw new MyException1();
-    } on MyException2 catch (e) {
-      foo = 1;
-    } catch (e) {
-      foo = 2;
-    }
-    Expect.equals(2, foo);
-  }
-
-  static void test6() {
-    var foo = 0;
-    try {
-      throw new MyException();
-    } on MyException2 catch (e) {
-      foo = 1;
-    } on MyException1 catch (e) {
-      foo = 2;
-    } catch (e) {
-      foo = 3;
-    }
-    Expect.equals(3, foo);
-  }
-
-  static void test7() {
-    var foo = 0;
-    try {
-      try {
-        throw new MyException();
-      } on MyException2 catch (e) {
-        foo = 1;
-      } on MyException1 catch (e) {
-        foo = 2;
-      }
-    } catch (e) {
-      Expect.equals(0, foo);
-      foo = 3;
-    }
-    Expect.equals(3, foo);
-  }
-
-  static void test8() {
-    var e = 3;
-    var caught = false;
-    try {
-      throw new MyException();
-    } catch (exc) {
-      caught = true;
-    }
-    Expect.equals(true, caught);
-    Expect.equals(3, e);
-  }
-
-  static void test9() {
-    dynamic e = 6;
-    try {
-      throw "up";
-    } on String {
-      e = "s";
-    } on int {
-      e = "i";
-    }
-    Expect.equals("s", e);
-  }
-
-  static void test10() {
-    try {
-      throw "up";
-    } on String catch (e) {
-      var e = 1; // ok, shadows exception variable.
-      Expect.equals(1, e);
-    }
-  }
-
-  static void test11() {
-    var e0 = 11;
-    try {
-      throw "up";
-    } on int catch (e0) {
-      Expect.fail("unreachable");
-    } on String catch (e1) {
-      // e0 from the other catch clause is not in scope.
-      Expect.equals(11, e0);
-    }
-  }
-
-  static void test12() {
-    const x = const [];
-    try {
-      throw "up";
-    } catch (e) {
-      Expect.equals("up", e);
-    } on String catch (e) {
-      // Compile-time constants in unreachable catch blocks are still
-      // compiled.
-
-      Expect.fail("unreachable");
-    }
-  }
-
-  static void testMain() {
-    test1();
-    test2();
-    test3();
-    test4();
-    test5();
-    test6();
-    test7();
-    test8();
-    test9();
-    test10();
-    test11();
-    test12();
-  }
-}
-
-main() {
-  for (var i = 0; i < 20; i++) {
-    TryCatchTest.testMain();
-  }
-}
diff --git a/tests/language_2/exception/try_catch_syntax_test.dart b/tests/language_2/exception/try_catch_syntax_test.dart
deleted file mode 100644
index 66feac11864..00000000000
--- a/tests/language_2/exception/try_catch_syntax_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  testMissingCatch();
-  testMissingTry();
-  testDuplicateCatchVariable();
-  testIllegalFinally();
-  testIllegalCatch();
-  testIllegalRethrow();
-}
-
-testMissingCatch() {
-  try { } // //# 01: syntax error
-}
-
-testMissingTry() {
-  on Exception catch (e) { } //                  //# 02: syntax error
-  on Exception catch (e, trace) { } //           //# 03: syntax error
-  finally { } //                                 //# 04: syntax error
-}
-
-testDuplicateCatchVariable() {
-  try { } on Exception catch (e, e) { } //# 05: compile-time error
-}
-
-testIllegalFinally() {
-  try { } finally (e) { } //# 06: syntax error
-}
-
-testIllegalCatch() {
-  try { } catch () { } //             //# 07: syntax error
-  try { } on MammaMia catch (e) { } //# 08: compile-time error
-  try { } catch (var e) { } //        //# 09: syntax error
-  try { } catch (final e) { } //      //# 10: syntax error
-  try { } catch (int e) { } //        //# 11: syntax error
-  try { } catch (final int e) { } //  //# 12: syntax error
-  try { } catch ([e, s]) { } //       //# 13: syntax error
-  try { } catch (e, [s]) { } //       //# 14: syntax error
-  try { } catch (e, [s0, s1]) { } //  //# 15: syntax error
-}
-
-testIllegalRethrow() {
-  try { rethrow; } catch (e) { } //            //# 16: compile-time error
-  try { } catch (e) { } finally { rethrow; } //# 17: compile-time error
-}
diff --git a/tests/language_2/exception/try_catch_test.dart b/tests/language_2/exception/try_catch_test.dart
deleted file mode 100644
index 8c38335a87a..00000000000
--- a/tests/language_2/exception/try_catch_test.dart
+++ /dev/null
@@ -1,202 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class MyException {}
-
-class MyException1 extends MyException {}
-
-class MyException2 extends MyException {}
-
-class TryCatchTest {
-  static void test1() {
-    var foo = 0;
-    try {
-      throw new MyException1();
-    } on MyException2 catch (e) {
-      foo = 1;
-    } on MyException1 catch (e) {
-      foo = 2;
-    } on MyException catch (e) {
-      foo = 3;
-    }
-    Expect.equals(2, foo);
-  }
-
-  static void test2() {
-    var foo = 0;
-    try {
-      throw new MyException1();
-    } on MyException2 catch (e) {
-      foo = 1;
-    } on MyException catch (e) {
-      foo = 2;
-    } on MyException1 catch (e) {
-      foo = 3;
-    }
-    Expect.equals(2, foo);
-  }
-
-  static void test3() {
-    var foo = 0;
-    try {
-      throw new MyException();
-    } on MyException2 catch (e) {
-      foo = 1;
-    } on MyException1 catch (e) {
-      foo = 2;
-    } on MyException catch (e) {
-      foo = 3;
-    }
-    Expect.equals(3, foo);
-  }
-
-  static void test4() {
-    var foo = 0;
-    try {
-      try {
-        throw new MyException();
-      } on MyException2 catch (e) {
-        foo = 1;
-      } on MyException1 catch (e) {
-        foo = 2;
-      }
-    } on MyException catch (e) {
-      Expect.equals(0, foo);
-      foo = 3;
-    }
-    Expect.equals(3, foo);
-  }
-
-  static void test5() {
-    var foo = 0;
-    try {
-      throw new MyException1();
-    } on MyException2 catch (e) {
-      foo = 1;
-    } catch (e) {
-      foo = 2;
-    }
-    Expect.equals(2, foo);
-  }
-
-  static void test6() {
-    var foo = 0;
-    try {
-      throw new MyException();
-    } on MyException2 catch (e) {
-      foo = 1;
-    } on MyException1 catch (e) {
-      foo = 2;
-    } catch (e) {
-      foo = 3;
-    }
-    Expect.equals(3, foo);
-  }
-
-  static void test7() {
-    var foo = 0;
-    try {
-      try {
-        throw new MyException();
-      } on MyException2 catch (e) {
-        foo = 1;
-      } on MyException1 catch (e) {
-        foo = 2;
-      }
-    } catch (e) {
-      Expect.equals(0, foo);
-      foo = 3;
-    }
-    Expect.equals(3, foo);
-  }
-
-  static void test8() {
-    var e = 3;
-    var caught = false;
-    try {
-      throw new MyException();
-    } catch (exc) {
-      caught = true;
-    }
-    Expect.equals(true, caught);
-    Expect.equals(3, e);
-  }
-
-  static void test9() {
-    dynamic e = 6;
-    try {
-      throw "up";
-    } on String {
-      e = "s";
-    } on int {
-      e = "i";
-    }
-    Expect.equals("s", e);
-  }
-
-  static void test10() {
-    try {
-      throw "up";
-    } on String catch (e) {
-      var e = 1; // ok, shadows exception variable.
-      Expect.equals(1, e);
-    }
-  }
-
-  static void test11() {
-    var e0 = 11;
-    try {
-      throw "up";
-    } on int catch (e0) {
-      Expect.fail("unreachable");
-    } on String catch (e1) {
-      // e0 from the other catch clause is not in scope.
-      Expect.equals(11, e0);
-    }
-  }
-
-  static void test12() {
-    const x = const [];
-    try {
-      throw "up";
-    } catch (e) {
-      Expect.equals("up", e);
-    } on String catch (e) {
-      // Compile-time constants in unreachable catch blocks are still
-      // compiled.
-      const y = x[0];
-      //        ^^^^
-      // [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
-      //         ^
-      // [cfe] Constant evaluation error:
-      Expect.fail("unreachable");
-    }
-  }
-
-  static void testMain() {
-    test1();
-    test2();
-    test3();
-    test4();
-    test5();
-    test6();
-    test7();
-    test8();
-    test9();
-    test10();
-    test11();
-    test12();
-  }
-}
-
-main() {
-  for (var i = 0; i < 20; i++) {
-    TryCatchTest.testMain();
-  }
-}
diff --git a/tests/language_2/exception/try_finally_regress_25333_test.dart b/tests/language_2/exception/try_finally_regress_25333_test.dart
deleted file mode 100644
index ba36836c8a6..00000000000
--- a/tests/language_2/exception/try_finally_regress_25333_test.dart
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test correct handling of try-catch inside try-finally.
-
-import "package:expect/expect.dart";
-
-void main() {
-  print("== test1 ==");
-  bool caught = false;
-  try {
-    test1();
-    print("Unexpected 1"); // should never go here
-    Expect.isTrue(false);
-  } catch (e) {
-    caught = true;
-    print("main catch 1: $e");
-    Expect.equals(e, "Ball");
-  }
-  Expect.isTrue(caught);
-  print("== test2 ==");
-  caught = false;
-  try {
-    test2();
-    print("Unexpected 2"); // should never go here
-    Expect.isTrue(false);
-  } catch (e) {
-    caught = true;
-    print("main catch 2: $e");
-    Expect.equals(e, "Ball");
-  }
-  Expect.isTrue(caught);
-}
-
-void test1() {
-  try {
-    throw "Ball";
-  } finally {
-    try {
-      throw "Frisbee";
-    } catch (e) {
-      print("test 1 catch: $e");
-      Expect.equals(e, "Frisbee");
-    }
-  }
-}
-
-void test2() {
-  try {
-    throwError(); // call a method that throws an error
-  } finally {
-    try {
-      throw "Frisbee";
-    } catch (e) {
-      print("test 2 catch: $e");
-      Expect.equals(e, "Frisbee");
-    }
-  }
-}
-
-void throwError() {
-  throw "Ball";
-}
diff --git a/tests/language_2/exception/try_finally_regress_25654_test.dart b/tests/language_2/exception/try_finally_regress_25654_test.dart
deleted file mode 100644
index a5835568fc2..00000000000
--- a/tests/language_2/exception/try_finally_regress_25654_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test break out of try-finally.
-
-import "package:expect/expect.dart";
-
-var count = 0;
-
-test() {
-  L:
-  while (true) {
-    try {
-      break L;
-    } finally {
-      count++;
-    }
-  }
-  throw "ex";
-}
-
-main() {
-  bool caught = false;
-  try {
-    test();
-  } catch (e) {
-    caught = true;
-    Expect.equals(e, "ex");
-  }
-  Expect.isTrue(caught);
-  Expect.equals(1, count);
-}
diff --git a/tests/language_2/export/ambiguous_main_a.dart b/tests/language_2/export/ambiguous_main_a.dart
deleted file mode 100644
index 2a8a8d37eb4..00000000000
--- a/tests/language_2/export/ambiguous_main_a.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library export_ambiguous_main_a;
-
-main() {
-  print('export_ambiguous_main_a');
-}
diff --git a/tests/language_2/export/ambiguous_main_b.dart b/tests/language_2/export/ambiguous_main_b.dart
deleted file mode 100644
index f344b7b6394..00000000000
--- a/tests/language_2/export/ambiguous_main_b.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library export_ambiguous_main_b;
-
-main() {
-  print('export_ambiguous_main_b');
-}
diff --git a/tests/language_2/export/ambiguous_main_test.dart b/tests/language_2/export/ambiguous_main_test.dart
deleted file mode 100644
index 806e162f69f..00000000000
--- a/tests/language_2/export/ambiguous_main_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-export 'ambiguous_main_a.dart';
-export 'ambiguous_main_b.dart';
-// [error column 1]
-// [cfe] 'main' is exported from both 'tests/language_2/export/ambiguous_main_a.dart' and 'tests/language_2/export/ambiguous_main_b.dart'.
-//     ^^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXPORT
diff --git a/tests/language_2/export/cyclic_helper1.dart b/tests/language_2/export/cyclic_helper1.dart
deleted file mode 100644
index d53f9965e59..00000000000
--- a/tests/language_2/export/cyclic_helper1.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library export_cyclic_helper1;
-
-import 'cyclic_helper2.dart';
-export 'cyclic_helper2.dart';
-
-class B {
-  A a;
-  B b;
-  C c;
-  D d;
-}
diff --git a/tests/language_2/export/cyclic_helper2.dart b/tests/language_2/export/cyclic_helper2.dart
deleted file mode 100644
index 394f5da5bca..00000000000
--- a/tests/language_2/export/cyclic_helper2.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library export_cyclic_helper2;
-
-import 'cyclic_test.dart';
-import 'cyclic_helper3.dart';
-export 'cyclic_test.dart';
-export 'cyclic_helper3.dart';
-
-class C {
-  A a;
-  B b;
-  C c;
-  D d;
-}
diff --git a/tests/language_2/export/cyclic_helper3.dart b/tests/language_2/export/cyclic_helper3.dart
deleted file mode 100644
index 9458409e013..00000000000
--- a/tests/language_2/export/cyclic_helper3.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library export_cyclic_helper3;
-
-class D {}
diff --git a/tests/language_2/export/cyclic_test.dart b/tests/language_2/export/cyclic_test.dart
deleted file mode 100644
index 4396788ab6c..00000000000
--- a/tests/language_2/export/cyclic_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test cyclic export and re-export.
-
-/**
- * export_cyclic_test re-exports export_cyclic_helper1 which declares B
- * export_cyclic_helper1 re-exports export_cyclic_helper2 which declares C
- * export_cyclic_helper2 re-exports export_cyclic_test which declares A
- * export_cyclic_helper2 re-exports export_cyclic_helper3 which declares D
- */
-
-library export_cyclic_test;
-
-import 'cyclic_helper1.dart';
-export 'cyclic_helper1.dart';
-
-class A {}
-
-void main() {
-  print(new A());
-  print(new B());
-  print(new C());
-  print(new D());
-}
diff --git a/tests/language_2/export/double_same_main_test.dart b/tests/language_2/export/double_same_main_test.dart
deleted file mode 100644
index b6742d1b6b7..00000000000
--- a/tests/language_2/export/double_same_main_test.dart
+++ /dev/null
@@ -1,8 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-export 'top_level_entry_test.dart';
-export 'main_test.dart' show main;
diff --git a/tests/language_2/export/duplicate_collision_test.dart b/tests/language_2/export/duplicate_collision_test.dart
deleted file mode 100644
index 1f5a1a19f2b..00000000000
--- a/tests/language_2/export/duplicate_collision_test.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'duplicate_import_libd.dart'; //# 01: compile-time error
-
-void main() {}
diff --git a/tests/language_2/export/duplicate_export_test.dart b/tests/language_2/export/duplicate_export_test.dart
deleted file mode 100644
index aac5fdca3ed..00000000000
--- a/tests/language_2/export/duplicate_export_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that it is not a compile-time error to reexport the same elements
-// through different paths.
-
-library duplicate_export_test;
-
-export 'duplicate_import_liba.dart';
-export 'duplicate_liba.dart'; // reexports 'duplicate_import_liba.dart'.
-
-void main() {}
diff --git a/tests/language_2/export/duplicate_import_liba.dart b/tests/language_2/export/duplicate_import_liba.dart
deleted file mode 100644
index 7913ee42231..00000000000
--- a/tests/language_2/export/duplicate_import_liba.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library liba;
-
-var field;
-
-void method() {}
-
-class Class {}
-
-void methodOrClass() {}
diff --git a/tests/language_2/export/duplicate_import_libb.dart b/tests/language_2/export/duplicate_import_libb.dart
deleted file mode 100644
index 66a23796916..00000000000
--- a/tests/language_2/export/duplicate_import_libb.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library libb;
-
-var field;
-
-void method() {}
-
-class Class {}
-
-class methodOrClass {}
diff --git a/tests/language_2/export/duplicate_import_libc.dart b/tests/language_2/export/duplicate_import_libc.dart
deleted file mode 100644
index 10c17a78cc2..00000000000
--- a/tests/language_2/export/duplicate_import_libc.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library libc;
-
-var field;
-
-void method() {}
-
-class Class {}
diff --git a/tests/language_2/export/duplicate_import_libd.dart b/tests/language_2/export/duplicate_import_libd.dart
deleted file mode 100644
index 3408bfa0c30..00000000000
--- a/tests/language_2/export/duplicate_import_libd.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library libd;
-
-import 'duplicate_import_liba.dart';
-import 'duplicate_import_libb.dart';
-import 'duplicate_import_libc.dart';
-
-export 'duplicate_import_liba.dart';
-export 'duplicate_import_libb.dart';
-export 'duplicate_import_libc.dart';
diff --git a/tests/language_2/export/duplicate_liba.dart b/tests/language_2/export/duplicate_liba.dart
deleted file mode 100644
index a5c90d5bcc6..00000000000
--- a/tests/language_2/export/duplicate_liba.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library export_liba;
-
-export 'duplicate_import_liba.dart';
diff --git a/tests/language_2/export/export_test.dart b/tests/language_2/export/export_test.dart
deleted file mode 100644
index 2af96a6a546..00000000000
--- a/tests/language_2/export/export_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test export and re-export.
-
-library export_test;
-
-import 'helper1.dart';
-import 'helper3.dart' as lib;
-
-void main() {
-  print(new Exported());
-  print(new ReExported());
-  print(new lib.Exported());
-  print(new lib.ReExported());
-}
diff --git a/tests/language_2/export/helper1.dart b/tests/language_2/export/helper1.dart
deleted file mode 100644
index a2938ef74b5..00000000000
--- a/tests/language_2/export/helper1.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library export_helper1;
-
-import 'helper2.dart';
-export 'helper2.dart';
-
-class Exported extends ReExported {}
diff --git a/tests/language_2/export/helper2.dart b/tests/language_2/export/helper2.dart
deleted file mode 100644
index 7a21abae75b..00000000000
--- a/tests/language_2/export/helper2.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library export_helper2;
-
-class ReExported {}
diff --git a/tests/language_2/export/helper3.dart b/tests/language_2/export/helper3.dart
deleted file mode 100644
index b04cf9cdefd..00000000000
--- a/tests/language_2/export/helper3.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library export_helper3;
-
-import 'helper4.dart';
-export 'helper4.dart';
-
-class Exported extends ReExported {}
diff --git a/tests/language_2/export/helper4.dart b/tests/language_2/export/helper4.dart
deleted file mode 100644
index e5d3577f4e8..00000000000
--- a/tests/language_2/export/helper4.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library export_helper4;
-
-class ReExported {}
diff --git a/tests/language_2/export/local_a.dart b/tests/language_2/export/local_a.dart
deleted file mode 100644
index 2af72a3c9ff..00000000000
--- a/tests/language_2/export/local_a.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library local_export_a;
-
-export 'local_a_export.dart';
-
-class A {
-  method() => 42;
-}
diff --git a/tests/language_2/export/local_a_export.dart b/tests/language_2/export/local_a_export.dart
deleted file mode 100644
index fb2d66a36e2..00000000000
--- a/tests/language_2/export/local_a_export.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library local_export_a_export;
-
-int A = 0;
diff --git a/tests/language_2/export/local_export_test.dart b/tests/language_2/export/local_export_test.dart
deleted file mode 100644
index fd4f507ad76..00000000000
--- a/tests/language_2/export/local_export_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library localExportTest;
-
-import "package:expect/expect.dart";
-import 'local_a.dart';
-
-void main() {
-  Expect.equals(42, new A().method());
-}
diff --git a/tests/language_2/export/main_override_test.dart b/tests/language_2/export/main_override_test.dart
deleted file mode 100644
index b98c94dd392..00000000000
--- a/tests/language_2/export/main_override_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-export 'top_level_entry_test.dart';
-
-main() {
-  print('export_main_override');
-}
diff --git a/tests/language_2/export/main_test.dart b/tests/language_2/export/main_test.dart
deleted file mode 100644
index 3639eff689c..00000000000
--- a/tests/language_2/export/main_test.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-export 'top_level_entry_test.dart';
diff --git a/tests/language_2/export/not_shadowed_by_prefix_helper.dart b/tests/language_2/export/not_shadowed_by_prefix_helper.dart
deleted file mode 100644
index 78d0af57a1b..00000000000
--- a/tests/language_2/export/not_shadowed_by_prefix_helper.dart
+++ /dev/null
@@ -1,8 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-export "not_shadowed_by_prefix_helper2.dart";
-import "dart:core" as f;
diff --git a/tests/language_2/export/not_shadowed_by_prefix_helper2.dart b/tests/language_2/export/not_shadowed_by_prefix_helper2.dart
deleted file mode 100644
index 1af4ed2e85e..00000000000
--- a/tests/language_2/export/not_shadowed_by_prefix_helper2.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-void f() {
-  f_called = true;
-}
-
-bool f_called = false;
diff --git a/tests/language_2/export/not_shadowed_by_prefix_test.dart b/tests/language_2/export/not_shadowed_by_prefix_test.dart
deleted file mode 100644
index 134e29dc617..00000000000
--- a/tests/language_2/export/not_shadowed_by_prefix_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that import prefixes within an imported library don't shadow
-// names re-exported by that library.
-
-import "package:expect/expect.dart";
-import "not_shadowed_by_prefix_helper.dart";
-
-main() {
-  f();
-  Expect.isTrue(f_called);
-}
diff --git a/tests/language_2/export/order_helper1.dart b/tests/language_2/export/order_helper1.dart
deleted file mode 100644
index 22c5b742ffc..00000000000
--- a/tests/language_2/export/order_helper1.dart
+++ /dev/null
@@ -1,8 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-export 'order_test.dart';
-export 'order_helper2.dart' show z;
diff --git a/tests/language_2/export/order_helper2.dart b/tests/language_2/export/order_helper2.dart
deleted file mode 100644
index 8ac3c08cd18..00000000000
--- a/tests/language_2/export/order_helper2.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'order_helper1.dart';
-
-class Info {
-  int x = y;
-}
-
-int get z => 38;
diff --git a/tests/language_2/export/order_test.dart b/tests/language_2/export/order_test.dart
deleted file mode 100644
index b884508394e..00000000000
--- a/tests/language_2/export/order_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'order_helper1.dart' as bar;
-import 'order_helper2.dart';
-
-final y = 38;
-final info = new Info();
-
-void main() {
-  Expect.equals(38, info.x);
-  Expect.equals(38, bar.y);
-  Expect.equals(38, bar.z);
-}
diff --git a/tests/language_2/export/private_runtime_test.dart b/tests/language_2/export/private_runtime_test.dart
deleted file mode 100644
index d08a0b51f34..00000000000
--- a/tests/language_2/export/private_runtime_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check that private dart:_ libraries cannot be imported.
-
-
-
-main() {
-  print("Done.");
-}
diff --git a/tests/language_2/export/private_test.dart b/tests/language_2/export/private_test.dart
deleted file mode 100644
index c409ac7971a..00000000000
--- a/tests/language_2/export/private_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check that private dart:_ libraries cannot be imported.
-
-// @dart = 2.9
-
-export "dart:_internal";
-// [error line 8, column 1, length 24]
-// [analyzer] COMPILE_TIME_ERROR.EXPORT_INTERNAL_LIBRARY
-// [cfe] Can't access platform private library.
-
-main() {
-  print("Done.");
-}
diff --git a/tests/language_2/export/reexport_core_helper.dart b/tests/language_2/export/reexport_core_helper.dart
deleted file mode 100644
index d1f3f680deb..00000000000
--- a/tests/language_2/export/reexport_core_helper.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library reexport_core_helper;
-
-export 'dart:core';
diff --git a/tests/language_2/export/reexport_core_test.dart b/tests/language_2/export/reexport_core_test.dart
deleted file mode 100644
index 0d138e83ca8..00000000000
--- a/tests/language_2/export/reexport_core_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that exports are handled for libraries loaded prior to the entry point
-// library.
-//
-// This test uses the fact that dart2js loads dart:core before the
-// reexport_core_helper and reexport_core_test libraries and the exports of
-// dart:core is therefore computed before the exports of reexport_core_helper.
-
-library reexport_core_test;
-
-import "package:expect/expect.dart";
-import 'reexport_core_helper.dart' as core;
-
-void main() {
-  var o = new Object();
-  Expect.isTrue(o is core.Object);
-}
diff --git a/tests/language_2/export/top_level_entry.dart b/tests/language_2/export/top_level_entry.dart
deleted file mode 100644
index 7b07bb289ee..00000000000
--- a/tests/language_2/export/top_level_entry.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-part of top_level_entry_test.dart;
-
-main() {}
diff --git a/tests/language_2/export/top_level_entry_test.dart b/tests/language_2/export/top_level_entry_test.dart
deleted file mode 100644
index c585b96c415..00000000000
--- a/tests/language_2/export/top_level_entry_test.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library top_level_entry_test.dart;
-
-part 'top_level_entry.dart';
diff --git a/tests/language_2/extension_methods/basic_static_extension_test.dart b/tests/language_2/extension_methods/basic_static_extension_test.dart
deleted file mode 100644
index 70c0fc2e797..00000000000
--- a/tests/language_2/extension_methods/basic_static_extension_test.dart
+++ /dev/null
@@ -1,124 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Tests the syntax of extension methods, and that the extensions are
-// invocable, and that type variables are bound correctly.
-
-// There are no extension *conflicts*.
-// For each invocation,  there is exactly one extension member in scope
-// which applies.
-
-// Target types.
-class Unnamed {}
-
-class Named {}
-
-class UnnamedGeneric<T> {}
-
-class NamedGeneric<T> {}
-
-String str(String name, Object object) =>
-    "$name(${object == null ? "null" : "non-null"})";
-
-// Unnamed local extension.
-extension on Unnamed {
-  String get name => str("unnamed", this);
-}
-
-extension NamedExt on Named {
-  String get name => str("named", this);
-}
-
-extension<T> on UnnamedGeneric<T> {
-  String get name => str("unnamed generic", this);
-  List<T> get list => <T>[];
-}
-
-extension NamedGenericExt<T> on NamedGeneric<T> {
-  String get name => str("named generic", this);
-  List<T> get list => <T>[];
-}
-
-extension General on Object {
-  String get generalName => str("general", this);
-}
-
-extension GeneralGeneric<T> on T {
-  String get generalGenericName => str("general generic", this);
-  List<T> get generalList => <T>[];
-}
-
-main() {
-  // Unnamed.
-  Unnamed unnamed = Unnamed();
-  Unnamed unnamedNull = null;
-
-  Expect.equals("unnamed(non-null)", unnamed.name);
-  Expect.equals("unnamed(null)", unnamedNull.name);
-
-  Expect.equals("general(non-null)", unnamed.generalName);
-  Expect.equals("general(null)", unnamedNull.generalName);
-
-  Expect.equals("general generic(non-null)", unnamed.generalGenericName);
-  Expect.equals("general generic(null)", unnamedNull.generalGenericName);
-  Expect.type<List<Unnamed>>(unnamed.generalList);
-  Expect.type<List<Unnamed>>(unnamedNull.generalList);
-
-  // Named.
-  Named named = Named();
-  Named namedNull = null;
-
-  Expect.equals("named(non-null)", named.name);
-  Expect.equals("named(null)", namedNull.name);
-
-  Expect.equals("general(non-null)", named.generalName);
-  Expect.equals("general(null)", namedNull.generalName);
-
-  Expect.equals("general generic(non-null)", named.generalGenericName);
-  Expect.equals("general generic(null)", namedNull.generalGenericName);
-  Expect.type<List<Named>>(named.generalList);
-  Expect.type<List<Named>>(namedNull.generalList);
-
-  // Unnamed Generic.
-  UnnamedGeneric<num> unnamedGeneric = UnnamedGeneric<int>();
-  UnnamedGeneric<num> unnamedGenericNull = null;
-
-  Expect.equals("unnamed generic(non-null)", unnamedGeneric.name);
-  Expect.equals("unnamed generic(null)", unnamedGenericNull.name);
-  Expect.type<List<num>>(unnamedGeneric.list);
-  Expect.notType<List<int>>(unnamedGeneric.list);
-  Expect.type<List<num>>(unnamedGenericNull.list);
-  Expect.notType<List<int>>(unnamedGenericNull.list);
-
-  Expect.equals("general(non-null)", unnamedGeneric.generalName);
-  Expect.equals("general(null)", unnamedGenericNull.generalName);
-
-  Expect.equals("general generic(non-null)", unnamedGeneric.generalGenericName);
-  Expect.equals("general generic(null)", unnamedGenericNull.generalGenericName);
-  Expect.type<List<UnnamedGeneric<num>>>(unnamedGeneric.generalList);
-  Expect.type<List<UnnamedGeneric<num>>>(unnamedGenericNull.generalList);
-
-  // Named Generic.
-  NamedGeneric<num> namedGeneric = NamedGeneric<int>();
-  NamedGeneric<num> namedGenericNull = null;
-
-  Expect.equals("named generic(non-null)", namedGeneric.name);
-  Expect.equals("named generic(null)", namedGenericNull.name);
-  Expect.type<List<num>>(namedGeneric.list);
-  Expect.notType<List<int>>(namedGeneric.list);
-  Expect.type<List<num>>(namedGenericNull.list);
-  Expect.notType<List<int>>(namedGenericNull.list);
-
-  Expect.equals("general(non-null)", namedGeneric.generalName);
-  Expect.equals("general(null)", namedGenericNull.generalName);
-
-  Expect.equals("general generic(non-null)", namedGeneric.generalGenericName);
-  Expect.equals("general generic(null)", namedGenericNull.generalGenericName);
-  Expect.type<List<NamedGeneric<num>>>(namedGeneric.generalList);
-  Expect.type<List<NamedGeneric<num>>>(namedGenericNull.generalList);
-}
diff --git a/tests/language_2/extension_methods/extension_operation_in_const_test.dart b/tests/language_2/extension_methods/extension_operation_in_const_test.dart
deleted file mode 100644
index 59edb863523..00000000000
--- a/tests/language_2/extension_methods/extension_operation_in_const_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-extension on Object {
-  int operator -() => 42;
-  int get length => 5;
-}
-
-class Tester {
-  final value;
-  const Tester.neg(Object o) : value = -o;
-  const Tester.length(Object o) : value = o.length;
-}
-
-main() {
-  const //
-      Object //# neg: compile-time error
-      i = 2;
-  const int x = -i;
-  print(x);
-
-  const //
-      Object //# length: compile-time error
-      s = "fisk";
-  const int y = s.length;
-  print(y);
-
-  Expect.equals(42, new Tester.neg(3).value);
-  const tx = Tester.neg(42); //# tneg: compile-time error
-  print(tx); //# tneg: continued
-
-  Expect.equals(5, new Tester.length("abc").value);
-  const ty = Tester.length("abc"); //# tlength: compile-time error
-  print(ty); //# tlength: continued
-}
diff --git a/tests/language_2/extension_methods/helpers/also_on_object.dart b/tests/language_2/extension_methods/helpers/also_on_object.dart
deleted file mode 100644
index c6be3cd87b5..00000000000
--- a/tests/language_2/extension_methods/helpers/also_on_object.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// An extension conflicting with the one from "on_object.dart";
-extension AlsoOnObject on Object {
-  String get onObject => "also object";
-}
diff --git a/tests/language_2/extension_methods/helpers/class_no_shadow.dart b/tests/language_2/extension_methods/helpers/class_no_shadow.dart
deleted file mode 100644
index 8dd2ab2455f..00000000000
--- a/tests/language_2/extension_methods/helpers/class_no_shadow.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-const String instanceValue = "1";
-
-void checkInstanceValue(String other) {
-  Expect.equals(other, instanceValue);
-}
-
-// A class which has only its own instance methods
-class A {
-  String fieldInInstanceScope = instanceValue;
-  String get getterInInstanceScope => instanceValue;
-  set setterInInstanceScope(String x) {
-    checkInstanceValue(x);
-  }
-
-  String methodInInstanceScope() => instanceValue;
-}
diff --git a/tests/language_2/extension_methods/helpers/class_shadow.dart b/tests/language_2/extension_methods/helpers/class_shadow.dart
deleted file mode 100644
index 331d649e48a..00000000000
--- a/tests/language_2/extension_methods/helpers/class_shadow.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "class_no_shadow.dart";
-
-// A class which has its own instance methods, which also
-// shadows the global scope
-class AGlobal extends A {
-  String fieldInGlobalScope = instanceValue;
-  String get getterInGlobalScope => instanceValue;
-  set setterInGlobalScope(String x) {
-    checkInstanceValue(x);
-  }
-
-  String methodInGlobalScope() => instanceValue;
-}
diff --git a/tests/language_2/extension_methods/helpers/extension_all.dart b/tests/language_2/extension_methods/helpers/extension_all.dart
deleted file mode 100644
index 38652523215..00000000000
--- a/tests/language_2/extension_methods/helpers/extension_all.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "class_no_shadow.dart";
-
-const double otherExtensionValue = 1.234;
-
-void checkOtherExtensionValue(double other) {
-  Expect.equals(other, otherExtensionValue);
-}
-
-// An extension which defines all symbols
-extension ExtraExt on A {
-  double get fieldInGlobalScope => otherExtensionValue;
-  double get getterInGlobalScope => otherExtensionValue;
-  set setterInGlobalScope(double x) {
-    checkOtherExtensionValue(x);
-  }
-
-  double methodInGlobalScope() => otherExtensionValue;
-
-  double get fieldInInstanceScope => otherExtensionValue;
-  double get getterInInstanceScope => otherExtensionValue;
-  set setterInInstanceScope(double x) {
-    checkOtherExtensionValue(x);
-  }
-
-  double methodInInstanceScope() => otherExtensionValue;
-
-  double get fieldInExtensionScope => otherExtensionValue;
-  double get getterInExtensionScope => otherExtensionValue;
-  set setterInExtensionScope(double x) {
-    checkOtherExtensionValue(x);
-  }
-
-  double methodInExtensionScope() => otherExtensionValue;
-
-  double get fieldInOtherExtensionScope => otherExtensionValue;
-  double get getterInOtherExtensionScope => otherExtensionValue;
-  set setterInOtherExtensionScope(double x) {
-    checkOtherExtensionValue(x);
-  }
-
-  double methodInOtherExtensionScope() => otherExtensionValue;
-}
diff --git a/tests/language_2/extension_methods/helpers/extension_global_instance.dart b/tests/language_2/extension_methods/helpers/extension_global_instance.dart
deleted file mode 100644
index 3a263b011c2..00000000000
--- a/tests/language_2/extension_methods/helpers/extension_global_instance.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "class_no_shadow.dart";
-
-const double otherExtensionValue = 1.234;
-
-void checkOtherExtensionValue(double other) {
-  Expect.equals(other, otherExtensionValue);
-}
-
-// An extension which defines only global, instance and its own symbols
-extension ExtraExt on A {
-  double get fieldInGlobalScope => otherExtensionValue;
-  double get getterInGlobalScope => otherExtensionValue;
-  set setterInGlobalScope(double x) {
-    checkOtherExtensionValue(x);
-  }
-
-  double methodInGlobalScope() => otherExtensionValue;
-
-  double get fieldInInstanceScope => otherExtensionValue;
-  double get getterInInstanceScope => otherExtensionValue;
-  set setterInInstanceScope(double x) {
-    checkOtherExtensionValue(x);
-  }
-
-  double methodInInstanceScope() => otherExtensionValue;
-
-  double get fieldInOtherExtensionScope => otherExtensionValue;
-  double get getterInOtherExtensionScope => otherExtensionValue;
-  set setterInOtherExtensionScope(double x) {
-    checkOtherExtensionValue(x);
-  }
-
-  double methodInOtherExtensionScope() => otherExtensionValue;
-}
diff --git a/tests/language_2/extension_methods/helpers/extension_only.dart b/tests/language_2/extension_methods/helpers/extension_only.dart
deleted file mode 100644
index 07a1dad4b85..00000000000
--- a/tests/language_2/extension_methods/helpers/extension_only.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "class_no_shadow.dart";
-
-const double otherExtensionValue = 1.234;
-
-void checkOtherExtensionValue(double other) {
-  Expect.equals(other, otherExtensionValue);
-}
-
-// An extension which defines only its own symbols
-extension ExtraExt on A {
-  double get fieldInOtherExtensionScope => otherExtensionValue;
-  double get getterInOtherExtensionScope => otherExtensionValue;
-  set setterInOtherExtensionScope(double x) {
-    checkOtherExtensionValue(x);
-  }
-
-  double methodInOtherExtensionScope() => otherExtensionValue;
-}
diff --git a/tests/language_2/extension_methods/helpers/global_scope.dart b/tests/language_2/extension_methods/helpers/global_scope.dart
deleted file mode 100644
index 3f023b50de8..00000000000
--- a/tests/language_2/extension_methods/helpers/global_scope.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-const int globalValue = 0;
-
-void checkGlobalValue(int x) {
-  Expect.equals(x, globalValue);
-}
-
-// Add symbols to the global scope
-int fieldInGlobalScope = globalValue;
-int get getterInGlobalScope => globalValue;
-set setterInGlobalScope(int x) {
-  checkGlobalValue(x);
-}
-
-int methodInGlobalScope() => globalValue;
diff --git a/tests/language_2/extension_methods/helpers/on_int.dart b/tests/language_2/extension_methods/helpers/on_int.dart
deleted file mode 100644
index 1eee2a7b856..00000000000
--- a/tests/language_2/extension_methods/helpers/on_int.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-extension OnInt on int {
-  String get onObject => "int";
-  String get onInt => "int";
-}
diff --git a/tests/language_2/extension_methods/helpers/on_object.dart b/tests/language_2/extension_methods/helpers/on_object.dart
deleted file mode 100644
index 135e4f35a30..00000000000
--- a/tests/language_2/extension_methods/helpers/on_object.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-extension OnObject on Object {
-  String get onObject => "object";
-}
diff --git a/tests/language_2/extension_methods/issue_45551_error_test.dart b/tests/language_2/extension_methods/issue_45551_error_test.dart
deleted file mode 100644
index 758aef15f97..00000000000
--- a/tests/language_2/extension_methods/issue_45551_error_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2021, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test illustrates the error scenario described in
-// https://github.com/dart-lang/sdk/issues/45551
-
-class C {}
-
-extension on C {
-  void Function() get call => () {};
-}
-
-test(C c) {
-  c();
-//^
-// [analyzer] COMPILE_TIME_ERROR.INVOCATION_OF_NON_FUNCTION_EXPRESSION
-// ^
-// [cfe] Cannot invoke an instance of 'C' because it declares 'call' to be something other than a method.
-}
-
-main() {}
diff --git a/tests/language_2/extension_methods/static_extension_bounds_error_test.dart b/tests/language_2/extension_methods/static_extension_bounds_error_test.dart
deleted file mode 100644
index 3400ee62ec8..00000000000
--- a/tests/language_2/extension_methods/static_extension_bounds_error_test.dart
+++ /dev/null
@@ -1,140 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests bounds checking for extension methods
-
-extension E1<T extends num> on T {
-  int get e1 => 1;
-}
-
-extension E2<T extends S, S extends num> on T {
-  int get e2 => 2;
-}
-
-extension E3<T> on T {
-  S f3<S extends T>(S x) => x;
-}
-
-extension E4<T extends Rec<T>> on T {
-  int get e4 => 4;
-}
-
-class Rec<T extends Rec<T>> {}
-
-class RecSolution extends Rec<RecSolution> {}
-
-void main() {
-  String s = "s";
-  int i = 0;
-  double d = 1.0;
-
-  // Inferred type of String does not satisfy the bound.
-  s.e1;
-//  ^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-// [cfe] The getter 'e1' isn't defined for the class 'String'.
-  E1(s).e1;
-//^^
-// [analyzer] COMPILE_TIME_ERROR.COULD_NOT_INFER
-//^
-// [cfe] Inferred type argument 'String' doesn't conform to the bound 'num' of the type variable 'T' on 'E1|get#e1'.
-  E1<String>(s).e1;
-//   ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-//^
-// [cfe] Type argument 'String' doesn't conform to the bound 'num' of the type variable 'T' on 'E1|get#e1'.
-
-  // Inferred types of int and double are ok
-  i.e1;
-  E1(i).e1;
-  E1<int>(i).e1;
-  d.e1;
-  E1(d).e1;
-  E1<double>(d).e1;
-
-  // Inferred type of String does not satisfy the bound.
-  s.e2;
-//  ^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-// [cfe] The getter 'e2' isn't defined for the class 'String'.
-  E2(s).e2;
-//^^
-// [analyzer] COMPILE_TIME_ERROR.COULD_NOT_INFER
-//^
-// [cfe] Inferred type argument 'String' doesn't conform to the bound 'S' of the type variable 'T' on 'E2|get#e2'.
-  E2<String, num>(s).e2;
-//   ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-//^
-// [cfe] Type argument 'String' doesn't conform to the bound 'S' of the type variable 'T' on 'E2|get#e2'.
-
-  // Inferred types of int and double are ok
-  i.e2;
-  E2(i).e2;
-  E2<int, num>(i).e2;
-  d.e2;
-  E2(d).e2;
-  E2<double, num>(d).e2;
-
-  // Inferred type int for method type parameter doesn't match the inferred
-  // bound of String
-  s.f3(3);
-//  ^^
-// [analyzer] COMPILE_TIME_ERROR.COULD_NOT_INFER
-// [cfe] Inferred type argument 'int' doesn't conform to the bound 'T' of the type variable 'S' on 'E3|f3'.
-  E3(s).f3(3);
-//      ^^
-// [analyzer] COMPILE_TIME_ERROR.COULD_NOT_INFER
-// [cfe] Inferred type argument 'int' doesn't conform to the bound 'T' of the type variable 'S' on 'E3|f3'.
-  E3<String>(s).f3(3);
-//              ^^
-// [analyzer] COMPILE_TIME_ERROR.COULD_NOT_INFER
-// [cfe] Inferred type argument 'int' doesn't conform to the bound 'T' of the type variable 'S' on 'E3|f3'.
-
-  // Inferred type int for method type parameter is ok
-  i.f3(3);
-  E3(i).f3(3);
-  E3<int>(i).f3(3);
-
-  // Inferred type int for method type parameter doesn't match the inferred
-  // bound of double
-  d.f3(3);
-//  ^^
-// [analyzer] COMPILE_TIME_ERROR.COULD_NOT_INFER
-// [cfe] Inferred type argument 'int' doesn't conform to the bound 'T' of the type variable 'S' on 'E3|f3'.
-  E3(d).f3(3);
-//      ^^
-// [analyzer] COMPILE_TIME_ERROR.COULD_NOT_INFER
-// [cfe] Inferred type argument 'int' doesn't conform to the bound 'T' of the type variable 'S' on 'E3|f3'.
-  E3<double>(d).f3(3);
-//              ^^
-// [analyzer] COMPILE_TIME_ERROR.COULD_NOT_INFER
-// [cfe] Inferred type argument 'int' doesn't conform to the bound 'T' of the type variable 'S' on 'E3|f3'.
-
-  RecSolution recs = RecSolution();
-  Rec<dynamic> superRec = RecSolution(); // Super-bounded type.
-
-  // Inferred type of RecSolution is ok
-  recs.e4;
-  E4(recs).e4;
-  E4<RecSolution>(recs).e4;
-
-  // Inferred super-bounded type is invalid as type argument
-  superRec.e4;
-//         ^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-// [cfe] The getter 'e4' isn't defined for the class 'Rec<dynamic>'.
-  E4(superRec).e4;
-//^^
-// [analyzer] COMPILE_TIME_ERROR.COULD_NOT_INFER
-//^
-// [cfe] Inferred type argument 'Rec<dynamic>' doesn't conform to the bound 'Rec<T>' of the type variable 'T' on 'E4|get#e4'.
-  E4<Rec<dynamic>>(superRec).e4;
-//   ^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-//^
-// [cfe] Type argument 'Rec<dynamic>' doesn't conform to the bound 'Rec<T>' of the type variable 'T' on 'E4|get#e4'.
-}
diff --git a/tests/language_2/extension_methods/static_extension_constant_error_test.dart b/tests/language_2/extension_methods/static_extension_constant_error_test.dart
deleted file mode 100644
index b2eeb7a483c..00000000000
--- a/tests/language_2/extension_methods/static_extension_constant_error_test.dart
+++ /dev/null
@@ -1,90 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'static_extension_constant_lib.dart';
-
-// Tests that it is an error to invoke an extension method during constant
-// expression evaluation. The expressions should be the same as those in
-// `runtimeExtensionCalls`, so that it is verified that each of them will
-// invoke an extension method.
-
-void main() {
-  // The initializing expressions should be identical to the elements in
-  // `runtimeExtensionCalls`.
-
-  const c01 = ~i;
-  //          ^^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-  const c02 = b & b;
-  //          ^^^^^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-  const c03 = b | b;
-  //          ^^^^^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-  const c04 = b ^ b;
-  //          ^^^^^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-  const c05 = i ~/ i;
-  //          ^^^^^^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-  const c06 = i >> i;
-  //          ^^^^^^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-  const c08 = i << i;
-  //          ^^^^^^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-  const c09 = i + i;
-  //          ^^^^^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-  const c10 = -i;
-  //          ^^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-  const c11 = d - d;
-  //          ^^^^^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-  const c12 = d * d;
-  //          ^^^^^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-  const c13 = d / d;
-  //          ^^^^^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-  const c14 = d % d;
-  //          ^^^^^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-  const c15 = d < i;
-  //          ^^^^^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-  const c16 = i <= d;
-  //          ^^^^^^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-  const c17 = d > i;
-  //          ^^^^^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-  const c18 = i >= i;
-  //          ^^^^^^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-  const c19 = s.length;
-  //          ^^^^^^^^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-}
diff --git a/tests/language_2/extension_methods/static_extension_constant_lib.dart b/tests/language_2/extension_methods/static_extension_constant_lib.dart
deleted file mode 100644
index 96355f16741..00000000000
--- a/tests/language_2/extension_methods/static_extension_constant_lib.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-extension ExtendObject on Object {
-  int operator ~() => 1;
-  bool operator &(Object other) => false;
-  bool operator |(Object other) => false;
-  bool operator ^(Object other) => true;
-  int operator ~/(Object other) => 0;
-  int operator >>(Object other) => 1;
-  int operator <<(Object other) => 0;
-  int operator +(Object other) => 0;
-  double operator -() => 1.0;
-  double operator -(Object other) => 1.0;
-  double operator *(Object other) => 1.0;
-  double operator /(Object other) => 2.0;
-  double operator %(Object other) => 1.0;
-  bool operator <(Object other) => false;
-  bool operator <=(Object other) => true;
-  bool operator >(Object other) => true;
-  bool operator >=(Object other) => false;
-  int get length => 1;
-}
-
-const Object b = true;
-const Object i = 3;
-const Object d = 2.4;
-const Object s = 'Hello!';
-
-// These expressions should be identical to the ones in
-// static_extension_constant_{,error}_test.dart, to ensure that
-// they invoke an extension method, and that this is an error.
-var runtimeExtensionCalls = <Object>[
-  ~i,
-  b & b,
-  b | b,
-  b ^ b,
-  i ~/ i,
-  i >> i,
-  i << i,
-  i + i,
-  -i,
-  d - d,
-  d * d,
-  d / d,
-  d % d,
-  d < i,
-  i <= d,
-  d > i,
-  i >= i,
-  s.length,
-];
diff --git a/tests/language_2/extension_methods/static_extension_constant_test.dart b/tests/language_2/extension_methods/static_extension_constant_test.dart
deleted file mode 100644
index 0d28ef66731..00000000000
--- a/tests/language_2/extension_methods/static_extension_constant_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'static_extension_constant_lib.dart' hide b, i, d, s;
-import 'static_extension_constant_lib.dart' as lib show b, i, d, s;
-
-// Ensure that all expressions in runtimeExtensionCalls invoke
-// an extension method rather than an instance method, such that
-// static_extension_constant_error_test gets an error for them all.
-
-const dynamic b = lib.b;
-const dynamic i = lib.i;
-const dynamic d = lib.d;
-const dynamic s = lib.s;
-
-// These expressions should be identical to those in
-// `lib.runtimeExtensionCalls`.
-var dynamicInstanceCalls = <Object>[
-  ~i,
-  b & b,
-  b | b,
-  b ^ b,
-  i ~/ i,
-  i >> i,
-  i << i,
-  i + i,
-  -i,
-  d - d,
-  d * d,
-  d / d,
-  d % d,
-  d < i,
-  i <= d,
-  d > i,
-  i >= i,
-  s.length,
-];
-
-void main() {
-  for (int i = 0; i < dynamicInstanceCalls.length; ++i) {
-    Expect.notEquals(dynamicInstanceCalls[i], runtimeExtensionCalls[i]);
-  }
-}
diff --git a/tests/language_2/extension_methods/static_extension_deferred_double_import_test.dart b/tests/language_2/extension_methods/static_extension_deferred_double_import_test.dart
deleted file mode 100644
index 7facb877444..00000000000
--- a/tests/language_2/extension_methods/static_extension_deferred_double_import_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "helpers/on_object.dart";
-import "helpers/on_object.dart" deferred as p1 hide OnObject;
-
-// Allow explicit and implicit access to non-deferred import extensions.
-
-void main() async {
-  Object o = 1;
-  Expect.equals("object", OnObject(o).onObject);
-  Expect.equals("object", o.onObject);
-}
diff --git a/tests/language_2/extension_methods/static_extension_deferred_import_error_test.dart b/tests/language_2/extension_methods/static_extension_deferred_import_error_test.dart
deleted file mode 100644
index 566bcd14f51..00000000000
--- a/tests/language_2/extension_methods/static_extension_deferred_import_error_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// It is an error to import a deferred library containing extensions without
-// hiding them.
-import "helpers/on_object.dart" deferred as p1;
-// [error line 11, column 1]
-// [cfe] Extension 'OnObject' cannot be imported through a deferred import.
-//     ^^^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.DEFERRED_IMPORT_OF_EXTENSION
-
-void main() async {}
diff --git a/tests/language_2/extension_methods/static_extension_deferred_import_resolution_error_test.dart b/tests/language_2/extension_methods/static_extension_deferred_import_resolution_error_test.dart
deleted file mode 100644
index 7d193c51fde..00000000000
--- a/tests/language_2/extension_methods/static_extension_deferred_import_resolution_error_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "helpers/on_object.dart" deferred as p1 hide OnObject;
-
-void main() {
-  Object o = 1;
-  OnObject(o).onObject;
-//^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_FUNCTION
-// [cfe] Method not found: 'OnObject'.
-  o.onObject;
-  //^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'onObject' isn't defined for the class 'Object'.
-}
diff --git a/tests/language_2/extension_methods/static_extension_deferred_import_test.dart b/tests/language_2/extension_methods/static_extension_deferred_import_test.dart
deleted file mode 100644
index eae0d39388e..00000000000
--- a/tests/language_2/extension_methods/static_extension_deferred_import_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "helpers/on_object.dart" deferred as p1 hide OnObject;
-
-void main() {}
diff --git a/tests/language_2/extension_methods/static_extension_getter_setter_conflicts_test.dart b/tests/language_2/extension_methods/static_extension_getter_setter_conflicts_test.dart
deleted file mode 100644
index b3888b00a7f..00000000000
--- a/tests/language_2/extension_methods/static_extension_getter_setter_conflicts_test.dart
+++ /dev/null
@@ -1,251 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests interactions between getters and setters where there is a conflict.
-
-// Conflicting class declarations.
-
-class C0 {
-  int get m1 => 0;
-  void set m2(int x) {}
-  int operator [](int index) => 0;
-}
-
-extension E0 on C0 {
-  void set m1(int x) {}
-  int get m2 => 0;
-  void operator []=(int index, int value) {}
-}
-
-void test0() {
-  C0 c0 = C0();
-  c0.m1;
-  c0.m1 = 0;
-  // ^^
-  // [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-  // [cfe] The setter 'm1' isn't defined for the class 'C0'.
-  E0(c0).m1 = 0;
-  E0(c0).m1;
-  //     ^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_EXTENSION_GETTER
-  // [cfe] Getter not found: 'm1'.
-
-  c0.m1 += 0;
-  // ^^
-  // [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-  // [cfe] The setter 'm1' isn't defined for the class 'C0'.
-
-  c0.m1++;
-  // ^^
-  // [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-  // [cfe] The setter 'm1' isn't defined for the class 'C0'.
-
-  c0.m2 = 0;
-  c0.m2;
-  // ^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'm2' isn't defined for the class 'C0'.
-  c0.m2 += 0;
-  // ^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'm2' isn't defined for the class 'C0'.
-  c0.m2++;
-  // ^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'm2' isn't defined for the class 'C0'.
-
-  E0(c0).m2;
-
-  c0[0];
-  c0[0] = 0;
-  //^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '[]=' isn't defined for the class 'C0'.
-  E0(c0)[0];
-  //    ^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_EXTENSION_OPERATOR
-  // [cfe] Method not found: '[]'.
-  E0(c0)[0] = 0;
-
-  c0[0] += 0;
-  //^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '[]=' isn't defined for the class 'C0'.
-  c0[0]++;
-  //^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '[]=' isn't defined for the class 'C0'.
-
-  E0(c0)[0] += 0;
-  //    ^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_EXTENSION_OPERATOR
-  // [cfe] The operator '[]' isn't defined for the class 'C0'.
-  E0(c0)[0]++;
-  //    ^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_EXTENSION_OPERATOR
-  // [cfe] The operator '[]' isn't defined for the class 'C0'.
-}
-
-// Conflicting extensions.
-
-class C1<T> {}
-
-extension E1A<T> on C1<T> {
-  int get m1 => 0;
-  void set m2(int x) {}
-  int operator [](int index) => 0;
-}
-
-extension E1B on C1<Object> {
-  void set m1(int x) {}
-  int get m2 => 0;
-  void operator []=(int index, int value) {}
-}
-
-void test1() {
-  C1<int> c1a = C1<Null>(); // E1A is more specific.
-  c1a.m1;
-
-  c1a.m1 = 0;
-  //  ^^
-  // [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-  // [cfe] The setter 'm1' isn't defined for the class 'C1<int>'.
-
-  c1a.m2;
-  //  ^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'm2' isn't defined for the class 'C1<int>'.
-
-  c1a.m2 = 0;
-
-  c1a[0] = 0;
-  // ^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '[]=' isn't defined for the class 'C1<int>'.
-
-  c1a[0] += 0;
-  // ^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '[]=' isn't defined for the class 'C1<int>'.
-
-  c1a[0]++;
-  // ^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '[]=' isn't defined for the class 'C1<int>'.
-
-  c1a[0];
-
-  C1<Object> c1b = C1<Null>(); // Neither extension is more specific.
-
-  c1b.m1;
-  //  ^^
-  // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-  // [cfe] The property 'm1' is defined in multiple extensions for 'C1<Object>' and neither is more specific.
-
-  c1b.m1 = 0;
-  //  ^^
-  // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-  // [cfe] The property 'm1' is defined in multiple extensions for 'C1<Object>' and neither is more specific.
-
-  c1b.m1 += 0;
-  //  ^^
-  // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-  // [cfe] The property 'm1' is defined in multiple extensions for 'C1<Object>' and neither is more specific.
-
-  c1b.m1++;
-  //  ^^
-  // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-  // [cfe] The property 'm1' is defined in multiple extensions for 'C1<Object>' and neither is more specific.
-
-  c1b.m2;
-  //  ^^
-  // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-  // [cfe] The property 'm2' is defined in multiple extensions for 'C1<Object>' and neither is more specific.
-
-  c1b[0];
-//^^^
-// [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-//   ^
-// [cfe] The operator '[]' is defined in multiple extensions for 'C1<Object>' and neither is more specific.
-
-  c1b[0] = 0;
-//^^^
-// [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-//   ^
-// [cfe] The operator '[]=' is defined in multiple extensions for 'C1<Object>' and neither is more specific.
-
-  c1b[0] += 0;
-//^^^
-// [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-//   ^
-// [cfe] The operator '[]' is defined in multiple extensions for 'C1<Object>' and neither is more specific.
-// [cfe] The operator '[]=' is defined in multiple extensions for 'C1<Object>' and neither is more specific.
-
-  c1b[0]++;
-//^^^
-// [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-//   ^
-// [cfe] The operator '[]' is defined in multiple extensions for 'C1<Object>' and neither is more specific.
-// [cfe] The operator '[]=' is defined in multiple extensions for 'C1<Object>' and neither is more specific.
-}
-
-// Getter on the extension itself.
-class C2 {
-  int get m1 => 0;
-  void set m2(int x) {}
-  int get mc => 0;
-  void operator []=(int index, int value) {}
-}
-
-extension E2 on C2 {
-  void set m1(int x) {}
-  int get m2 => 0;
-  String get me => "";
-  int operator [](int index) => 0;
-
-  void test2() {
-    // Using `this.member` means using the `on` type.
-
-    this.m1;
-    this.m1 = 0;
-    //   ^^
-    // [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-    // [cfe] The setter 'm1' isn't defined for the class 'C2'.
-
-    this.m2 = 0;
-    this.m2;
-    //   ^^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'm2' isn't defined for the class 'C2'.
-
-    this[0] = 0;
-    this[0];
-    //  ^^^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-    // [cfe] The operator '[]' isn't defined for the class 'C2'.
-
-    this[0] += 0;
-    //  ^^^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-    // [cfe] The operator '[]' isn't defined for the class 'C2'.
-
-    this[0]++;
-    //  ^^^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-    // [cfe] The operator '[]' isn't defined for the class 'C2'.
-
-    // Check that `this.mc` refers to `C2.mc`.
-    this.mc.toRadixString(16);
-    // Check that `this.me` refers to `E2.me`.
-    this.me.substring(0);
-  }
-}
-
-main() {
-  test0();
-  test1();
-  C2().test2();
-}
diff --git a/tests/language_2/extension_methods/static_extension_getter_setter_test.dart b/tests/language_2/extension_methods/static_extension_getter_setter_test.dart
deleted file mode 100644
index 9a0e782d8af..00000000000
--- a/tests/language_2/extension_methods/static_extension_getter_setter_test.dart
+++ /dev/null
@@ -1,145 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests getters and setters where one or both is defined
-// by an extension.
-
-import "package:expect/expect.dart";
-
-main() {
-  C c = C();
-  // v1: C get, C set
-  expectGet("C.v1", c.v1);
-  expectSet("C.v1=1", c.v1 = Result("1"));
-  // v2: C get, E1 get/set, C wins.
-  expectGet("C.v2", c.v2);
-  expectSet("E1.v2=2", E1(c).v2 = Result("2"));
-  // v3: E1 get/set, C set, C wins.
-  expectGet("E1.v3", E1(c).v3);
-  expectSet("C.v3=3", c.v3 = Result("3"));
-  // v4: E1 get/set
-  expectGet("E1.v4", c.v4);
-  expectSet("E1.v4=4", c.v4 = Result("4"));
-  // v5: E1 get, E2 set, neither more specific.
-  expectGet("E1.v5", E1(c).v5);
-  expectSet("E2.v5=5", E2(c).v5 = Result("5"));
-
-  expectSet("C.v1=C.v1+1", c.v1++);
-  expectSet("E1.v4=E1.v4+1", c.v4++);
-
-  expectSet("C.v1=C.v1+a", c.v1 += "a");
-  expectSet("C.v1=C.v1-b", c.v1 -= "b");
-  expectSet("E1.v4=E1.v4-b", c.v4 -= "b");
-
-  // Explicit application used by all accesses of read/write operations
-  expectSet("E1.v1=E1.v1+1", E1(c).v1++);
-  expectSet("E1.v2=E1.v2+1", E1(c).v2++);
-  expectSet("E1.v3=E1.v3+1", E1(c).v3++);
-  // Same using `+= 1` instead of `++`.
-  expectSet("E1.v1=E1.v1+1", E1(c).v1 += 1);
-  expectSet("E1.v2=E1.v2+1", E1(c).v2 += 1);
-  expectSet("E1.v3=E1.v3+1", E1(c).v3 += 1);
-  // Same fully expanded.
-  expectSet("E1.v1=E1.v1+1", E1(c).v1 = E1(c).v1 + 1);
-  expectSet("E1.v2=E1.v2+1", E1(c).v2 = E1(c).v2 + 1);
-  expectSet("E1.v3=E1.v3+1", E1(c).v3 = E1(c).v3 + 1);
-
-  // Cascades work.
-  expectSet(
-      "E1.v4=E1.v4+[C.v1=C.v1-[C.v3=a]]",
-      c
-        ..v3 = Result("a")
-        ..v1 -= Result("[$lastSetter]")
-        ..v4 += Result("[$lastSetter]"));
-}
-
-/// Expect the value of [result] to be the [expected] string
-expectGet(String expected, Result result) {
-  Expect.equals(expected, result.value);
-}
-
-/// Expect the [lastSetter] value set by evaluating [assignment] to be
-/// [expected].
-expectSet(String expected, void assignment) {
-  Expect.equals(expected, lastSetter);
-}
-
-/// Last value passed to any of our tested setters.
-String lastSetter = null;
-
-/// A type which supports a `+` operation accepting `int`,
-/// so we can test `+=` and `++`.
-class Result {
-  final String value;
-  Result(this.value);
-  Result operator +(Object o) => Result("$value+$o");
-  Result operator -(Object o) => Result("$value-$o");
-  String toString() => value;
-}
-
-/// Target type for extensions.
-///
-/// Declares [v1] getter and setter, [v2] getter and [v3] setter.
-class C {
-  Result get v1 => Result("C.v1");
-  void set v1(Result value) {
-    lastSetter = "C.v1=$value";
-  }
-
-  Result get v2 => Result("C.v2");
-
-  void set v3(Result value) {
-    lastSetter = "C.v3=$value";
-  }
-}
-
-/// Primary extension on [C].
-///
-/// Declares [v1], [v2] and [v3] getters and setters.
-///
-/// Declares [v4] getter and setter, and [v5] getter
-/// which are supplemented by a setter from the [E2] extension.
-extension E1 on C {
-  // Same basename as C getter and setter.
-  Result get v1 => Result("E1.v1");
-
-  void set v1(Result value) {
-    lastSetter = "E1.v1=$value";
-  }
-
-  // Same basename as C getter.
-  Result get v2 => Result("E1.v2");
-
-  void set v2(Result value) {
-    lastSetter = "E1.v2=$value";
-  }
-
-  // Same basename as C setter.
-  Result get v3 => Result("E1.v3");
-
-  void set v3(Result value) {
-    lastSetter = "E1.v3=$value";
-  }
-
-  // No other declarations with same basename.
-  Result get v4 => Result("E1.v4");
-
-  void set v4(Result value) {
-    lastSetter = "E1.v4=$value";
-  }
-
-  // Same basename as E2 setter.
-  Result get v5 => Result("E1.v5");
-}
-
-/// A different extension than [E1] on [C].
-///
-/// Declares [v5] setter.
-extension E2 on C {
-  void set v5(Result value) {
-    lastSetter = "E2.v5=$value";
-  }
-}
diff --git a/tests/language_2/extension_methods/static_extension_import_hide_error_test.dart b/tests/language_2/extension_methods/static_extension_import_hide_error_test.dart
deleted file mode 100644
index 04bb288ea07..00000000000
--- a/tests/language_2/extension_methods/static_extension_import_hide_error_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "helpers/on_object.dart";
-import "helpers/on_int.dart" hide OnInt;
-
-void main() {
-  int i = 0;
-  Object o = i;
-  i.onInt;
-  //^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'onInt' isn't defined for the class 'int'.
-  i.onObject;
-  o.onObject;
-}
diff --git a/tests/language_2/extension_methods/static_extension_import_hide_test.dart b/tests/language_2/extension_methods/static_extension_import_hide_test.dart
deleted file mode 100644
index 8cde4da73b9..00000000000
--- a/tests/language_2/extension_methods/static_extension_import_hide_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "helpers/on_object.dart";
-import "helpers/on_int.dart" hide OnInt;
-
-void main() {
-  int i = 0;
-  Object o = i;
-  Expect.equals("object", i.onObject);
-  Expect.equals("object", o.onObject);
-}
diff --git a/tests/language_2/extension_methods/static_extension_import_prefixed_hide_error_test.dart b/tests/language_2/extension_methods/static_extension_import_prefixed_hide_error_test.dart
deleted file mode 100644
index af6d53ef85d..00000000000
--- a/tests/language_2/extension_methods/static_extension_import_prefixed_hide_error_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "helpers/on_object.dart";
-import "helpers/on_int.dart" as p1 hide OnInt;
-
-void main() {
-  int i = 0;
-  Object o = i;
-  i.onInt;
-  //^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'onInt' isn't defined for the class 'int'.
-  i.onObject;
-  o.onObject;
-}
diff --git a/tests/language_2/extension_methods/static_extension_import_prefixed_hide_test.dart b/tests/language_2/extension_methods/static_extension_import_prefixed_hide_test.dart
deleted file mode 100644
index 904c54cdccb..00000000000
--- a/tests/language_2/extension_methods/static_extension_import_prefixed_hide_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "helpers/on_object.dart";
-import "helpers/on_int.dart" as p1 hide OnInt;
-
-void main() {
-  int i = 0;
-  Object o = i;
-  Expect.equals("object", i.onObject);
-  Expect.equals("object", o.onObject);
-}
diff --git a/tests/language_2/extension_methods/static_extension_import_prefixed_show_test.dart b/tests/language_2/extension_methods/static_extension_import_prefixed_show_test.dart
deleted file mode 100644
index 8cb537ea5f4..00000000000
--- a/tests/language_2/extension_methods/static_extension_import_prefixed_show_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "helpers/on_object.dart" as p1 show OnObject;
-import "helpers/on_int.dart";
-
-void main() {
-  int i = 0;
-  Object o = i;
-  Expect.equals("int", i.onInt);
-  Expect.equals("int", i.onObject);
-  Expect.equals("object", o.onObject);
-}
diff --git a/tests/language_2/extension_methods/static_extension_import_prefixed_test.dart b/tests/language_2/extension_methods/static_extension_import_prefixed_test.dart
deleted file mode 100644
index 18b37b181d1..00000000000
--- a/tests/language_2/extension_methods/static_extension_import_prefixed_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "helpers/on_object.dart" as p1;
-import "helpers/on_int.dart";
-
-void main() {
-  int i = 0;
-  Object o = i;
-  Expect.equals("int", i.onInt);
-  Expect.equals("int", i.onObject);
-  Expect.equals("object", o.onObject);
-}
diff --git a/tests/language_2/extension_methods/static_extension_import_test.dart b/tests/language_2/extension_methods/static_extension_import_test.dart
deleted file mode 100644
index 337cb87fc4c..00000000000
--- a/tests/language_2/extension_methods/static_extension_import_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "helpers/on_object.dart";
-import "helpers/on_int.dart";
-
-void main() {
-  int i = 0;
-  Object o = i;
-  Expect.equals("int", i.onInt);
-  Expect.equals("int", i.onObject);
-  Expect.equals("object", o.onObject);
-}
diff --git a/tests/language_2/extension_methods/static_extension_import_unprefixed_show_test.dart b/tests/language_2/extension_methods/static_extension_import_unprefixed_show_test.dart
deleted file mode 100644
index 7b5cda0fefb..00000000000
--- a/tests/language_2/extension_methods/static_extension_import_unprefixed_show_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "helpers/on_object.dart" show OnObject;
-import "helpers/on_int.dart";
-
-void main() {
-  int i = 0;
-  Object o = i;
-  Expect.equals("int", i.onInt);
-  Expect.equals("int", i.onObject);
-  Expect.equals("object", o.onObject);
-}
diff --git a/tests/language_2/extension_methods/static_extension_inference_test.dart b/tests/language_2/extension_methods/static_extension_inference_test.dart
deleted file mode 100644
index 63426c2a1ed..00000000000
--- a/tests/language_2/extension_methods/static_extension_inference_test.dart
+++ /dev/null
@@ -1,184 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests extension method resolution type inference.
-
-import "package:expect/expect.dart";
-
-void main() {
-  List<num> numList = <int>[];
-  // Inference of E1(numList), implicit or explicit, is the same as
-  // for C1(numList), which infers `num`.
-  var numListInstance1 = C1<num>(numList);
-
-  Expect.type<List<num>>(numList.argList1);
-  sameType(numListInstance1.argDynList1, numList.argDynList1);
-  sameType(numListInstance1.selfList1, numList.selfList1);
-
-  Expect.type<List<num>>(E1(numList).argList1);
-  sameType(numListInstance1.argDynList1, E1(numList).argDynList1);
-  sameType(numListInstance1.selfList1, E1(numList).selfList1);
-
-  var numListInstance2 = C2<List<num>>(numList);
-
-  Expect.type<List<List<num>>>(numList.argList2);
-  sameType(numListInstance2.argDynList2, numList.argDynList2);
-  sameType(numListInstance2.selfList2, numList.selfList2);
-
-  Expect.type<List<List<num>>>(E2(numList).argList2);
-  sameType(numListInstance2.argDynList2, E2(numList).argDynList2);
-  sameType(numListInstance2.selfList2, E2(numList).selfList2);
-
-  Pair<int, double> pair = Pair(1, 2.5);
-  var pairInstance3 = C3<int, double>(pair);
-
-  Expect.type<List<int>>(pair.argList3);
-  Expect.type<List<double>>(pair.arg2List3);
-  sameType(pairInstance3.argDynList3, pair.argDynList3);
-  sameType(pairInstance3.arg2DynList3, pair.arg2DynList3);
-  sameType(pairInstance3.selfList3, pair.selfList3);
-
-  Expect.type<List<int>>(E3(pair).argList3);
-  Expect.type<List<double>>(E3(pair).arg2List3);
-  sameType(pairInstance3.argDynList3, E3(pair).argDynList3);
-  sameType(pairInstance3.arg2DynList3, E3(pair).arg2DynList3);
-  sameType(pairInstance3.selfList3, E3(pair).selfList3);
-
-  var pairInstance4 = C4<num>(pair);
-
-  Expect.type<List<num>>(pair.argList4);
-  sameType(pairInstance4.argDynList4, pair.argDynList4);
-  sameType(pairInstance4.selfList4, pair.selfList4);
-
-  Expect.type<List<num>>(E4(pair).argList4);
-  sameType(pairInstance4.argDynList4, E4(pair).argDynList4);
-  sameType(pairInstance4.selfList4, E4(pair).selfList4);
-
-  List<int> intList = <int>[1];
-  var intListInstance5 = C5<int>(intList);
-
-  Expect.type<List<int>>(intList.argList5);
-  sameType(intListInstance5.argDynList5, intList.argDynList5);
-  sameType(intListInstance5.selfList5, intList.selfList5);
-
-  Expect.type<List<int>>(E5(intList).argList5);
-  sameType(intListInstance5.argDynList5, E5(intList).argDynList5);
-  sameType(intListInstance5.selfList5, E5(intList).selfList5);
-}
-
-void sameType(o1, o2) {
-  Expect.equals(o1.runtimeType, o2.runtimeType);
-}
-
-extension E1<T> on List<T> {
-  List<T> get argList1 => <T>[];
-  List<Object> get argDynList1 => <T>[];
-  List<Object> get selfList1 {
-    var result = [this];
-    return result;
-  }
-}
-
-class C1<T> {
-  List<T> self;
-  C1(this.self);
-  List<T> get argList1 => <T>[];
-  List<Object> get argDynList1 => <T>[];
-  List<Object> get selfList1 {
-    var result = [self];
-    return result;
-  }
-}
-
-extension E2<T> on T {
-  List<T> get argList2 => <T>[];
-  List<Object> get argDynList2 => <T>[];
-  List<Object> get selfList2 {
-    var result = [this];
-    return result;
-  }
-}
-
-class C2<T> {
-  T self;
-  C2(this.self);
-  List<T> get argList2 => <T>[];
-  List<Object> get argDynList2 => <T>[];
-  List<Object> get selfList2 {
-    var result = [self];
-    return result;
-  }
-}
-
-extension E3<S, T> on Pair<T, S> {
-  List<T> get argList3 => <T>[];
-  List<Object> get argDynList3 => <T>[];
-  List<S> get arg2List3 => <S>[];
-  List<Object> get arg2DynList3 => <S>[];
-  List<Object> get selfList3 {
-    var result = [this];
-    return result;
-  }
-}
-
-class C3<T, S> {
-  Pair<T, S> self;
-  C3(this.self);
-  List<T> get argList3 => <T>[];
-  List<Object> get argDynList3 => <T>[];
-  List<S> get arg2List3 => <S>[];
-  List<Object> get arg2DynList3 => <S>[];
-  List<Object> get selfList3 {
-    var result = [self];
-    return result;
-  }
-}
-
-extension E4<T> on Pair<T, T> {
-  List<T> get argList4 => <T>[];
-  List<Object> get argDynList4 => <T>[];
-  List<Object> get selfList4 {
-    var result = [this];
-    return result;
-  }
-}
-
-class C4<T> {
-  Pair<T, T> self;
-  C4(this.self);
-  List<T> get argList4 => <T>[];
-  List<Object> get argDynList4 => <T>[];
-  List<Object> get selfList4 {
-    var result = [self];
-    return result;
-  }
-}
-
-extension E5<T extends num> on List<T> {
-  List<T> get argList5 => <T>[];
-  List<Object> get argDynList5 => <T>[];
-  List<Object> get selfList5 {
-    var result = [this];
-    return result;
-  }
-}
-
-class C5<T extends num> {
-  List<T> self;
-  C5(this.self);
-  List<T> get argList5 => <T>[];
-  List<Object> get argDynList5 => <T>[];
-  List<Object> get selfList5 {
-    var result = [self];
-    return result;
-  }
-}
-
-class Pair<A, B> {
-  final A first;
-  final B second;
-  Pair(this.first, this.second);
-}
diff --git a/tests/language_2/extension_methods/static_extension_internal_basename_shadowing_error_test.dart b/tests/language_2/extension_methods/static_extension_internal_basename_shadowing_error_test.dart
deleted file mode 100644
index 5eaaaa80c59..00000000000
--- a/tests/language_2/extension_methods/static_extension_internal_basename_shadowing_error_test.dart
+++ /dev/null
@@ -1,505 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-///////////////////////////////////////////////////////////////////////
-// The following tests check that setters or getters in an extension
-// correctly shadow members with the same basename in the surrounding
-// scope.
-///////////////////////////////////////////////////////////////////////
-
-int get topLevelGetter => -1;
-void set topLevelSetter(int _) {}
-int topLevelField = -3;
-int topLevelMethod(int x) => -4;
-
-// Check that an instance getter in an extension shadows top level
-// members with the same basename.
-extension E1 on A1 {
-  int get topLevelSetter => 1;
-  int get topLevelField => 2;
-  int get topLevelMethod => 3;
-  void test() {
-    // The instance getter shadows the global setter
-    topLevelSetter = topLevelSetter + 1;
-//  ^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'topLevelSetter'.
-    topLevelSetter++;
-//  ^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'topLevelSetter'.
-    topLevelSetter = 0;
-//  ^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'topLevelSetter'.
-
-    // The instance getter shadows the global field setter
-    topLevelField = topLevelField + 1;
-//  ^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'topLevelField'.
-    topLevelField++;
-//  ^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'topLevelField'.
-    topLevelField = 0;
-//  ^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'topLevelField'.
-
-    // The instance getter shadows the global method
-    topLevelMethod(4);
-//  ^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVOCATION_OF_NON_FUNCTION_EXPRESSION
-//                ^
-// [cfe] The method 'call' isn't defined for the class 'int'.
-  }
-}
-
-class A1 {}
-
-// Check that an instance setter in an extension shadows top level
-// members with the same basename.
-extension E2 on A2 {
-  void set topLevelGetter(int _) {}
-  void set topLevelField(int _) {}
-  void set topLevelMethod(int _) {}
-  void test() {
-    // The instance setter shadows the global getter
-    topLevelGetter = topLevelGetter + 1;
-//                   ^^
-// [analyzer] unspecified
-// [cfe] Getter not found: 'topLevelGetter'.
-    topLevelGetter++;
-//  ^^
-// [analyzer] unspecified
-// [cfe] Getter not found: 'topLevelGetter'.
-    topLevelGetter;
-//  ^^
-// [analyzer] unspecified
-// [cfe] Getter not found: 'topLevelGetter'.
-    topLevelGetter = 3;
-
-    // The instance setter shadows the global field getter
-    topLevelField = topLevelField + 1;
-//                  ^^
-// [analyzer] unspecified
-// [cfe] Getter not found: 'topLevelField'.
-    topLevelField++;
-//  ^^
-// [analyzer] unspecified
-// [cfe] Getter not found: 'topLevelField'.
-    topLevelField;
-//  ^^
-// [analyzer] unspecified
-// [cfe] Getter not found: 'topLevelField'.
-
-    // The instance setter shadows the global method
-    topLevelMethod(4);
-//  ^^
-// [analyzer] unspecified
-// [cfe] Getter not found: 'topLevelMethod'.
-  }
-}
-
-class A2 {}
-
-// Check that a static getter in an extension shadows top level
-// members with the same basename.
-extension E3 on A3 {
-  static int get topLevelSetter => 1;
-  static int get topLevelField => 2;
-  static int get topLevelMethod => 3;
-  void test() {
-    // The static getter shadows the global setter
-    topLevelSetter = topLevelSetter + 1;
-//  ^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'topLevelSetter'.
-    topLevelSetter++;
-//  ^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'topLevelSetter'.
-    topLevelSetter = 0;
-//  ^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'topLevelSetter'.
-
-    // The static getter shadows the global field setter
-    topLevelField = topLevelField + 1;
-//  ^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'topLevelField'.
-    topLevelField++;
-//  ^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'topLevelField'.
-    topLevelField = 0;
-//  ^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'topLevelField'.
-
-    // The static getter shadows the global method
-    topLevelMethod(4);
-//  ^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVOCATION_OF_NON_FUNCTION_EXPRESSION
-//                   ^
-// [cfe] The method 'call' isn't defined for the class 'int'.
-  }
-}
-
-class A3 {}
-
-// Check that a static setter in an extension shadows top level
-// members with the same basename.
-extension E4 on A4 {
-  static void set topLevelGetter(int _) {}
-  static void set topLevelField(int _) {}
-  static void set topLevelMethod(int _) {}
-  void test() {
-    // The static setter shadows the global getter
-    topLevelGetter = topLevelGetter + 1;
-//                   ^^
-// [analyzer] unspecified
-// [cfe] Getter not found: 'topLevelGetter'.
-    topLevelGetter++;
-//  ^^
-// [analyzer] unspecified
-// [cfe] Getter not found: 'topLevelGetter'.
-    topLevelGetter;
-//  ^^
-// [analyzer] unspecified
-// [cfe] Getter not found: 'topLevelGetter'.
-
-    // The static setter shadows the global field getter
-    topLevelField = topLevelField + 1;
-//                  ^^
-// [analyzer] unspecified
-// [cfe] Getter not found: 'topLevelField'.
-    topLevelField++;
-//  ^^
-// [analyzer] unspecified
-// [cfe] Getter not found: 'topLevelField'.
-    topLevelField;
-//  ^^
-// [analyzer] unspecified
-// [cfe] Getter not found: 'topLevelField'.
-
-    // The static setter shadows the global method
-    topLevelMethod(4);
-//  ^^
-// [analyzer] unspecified
-// [cfe] Getter not found: 'topLevelMethod'.
-  }
-}
-
-class A4 {}
-
-// Define extensions on A6.
-extension E5 on A6 {
-  void set extensionSetter(int _) {}
-  int extensionMethod(int x) => -3;
-}
-
-// Check that an instance getter in an extension shadows extension
-// members with the same basename from a different extension.
-extension E6 on A6 {
-  int get extensionSetter => 1;
-  int get extensionMethod => 3;
-  void test() {
-    // The instance getter shadows the other extension's setter
-    extensionSetter = extensionSetter + 1;
-//  ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'extensionSetter'.
-    extensionSetter++;
-//  ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'extensionSetter'.
-    extensionSetter = 0;
-//  ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'extensionSetter'.
-
-    // The instance getter shadows the other extensions method
-    extensionMethod(4);
-//  ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVOCATION_OF_NON_FUNCTION_EXPRESSION
-//                 ^
-// [cfe] The method 'call' isn't defined for the class 'int'.
-  }
-}
-
-class A6 {}
-
-// Check that an instance getter in a class shadows extension
-// members with the same basename from extension E5.
-class A7 extends A6 {
-  int get extensionSetter => 1;
-  int get extensionMethod => 3;
-  void test() {
-    // The instance getter shadows the other extension's setter
-    extensionSetter = extensionSetter + 1;
-//  ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] The setter 'extensionSetter' isn't defined for the class 'A7'.
-    extensionSetter++;
-//  ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] The setter 'extensionSetter' isn't defined for the class 'A7'.
-    extensionSetter = 0;
-//  ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] The setter 'extensionSetter' isn't defined for the class 'A7'.
-
-    // The instance getter shadows the other extensions method
-    extensionMethod(4);
-//  ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVOCATION_OF_NON_FUNCTION_EXPRESSION
-//                 ^
-// [cfe] 'extensionMethod' isn't a function or method and can't be invoked.
-  }
-}
-
-// Define extensions on A8.
-extension E7 on A8 {
-  int get extensionGetter => -1;
-  int extensionMethod(int x) => -3;
-}
-
-// Check that an instance setter in an extension shadows extension
-// members with the same basename from a different extension.
-extension E8 on A8 {
-  void set extensionGetter(int _) {}
-  void set extensionMethod(int _) {}
-  void test() {
-    // The instance setter shadows the other extension's getter
-    extensionGetter = extensionGetter + 1;
-//                    ^^
-// [analyzer] unspecified
-// [cfe] Getter not found: 'extensionGetter'.
-    extensionGetter++;
-//  ^^
-// [analyzer] unspecified
-// [cfe] Getter not found: 'extensionGetter'.
-    extensionGetter;
-//  ^^
-// [analyzer] unspecified
-// [cfe] Getter not found: 'extensionGetter'.
-
-    // The instance setter shadows the other extension's method.
-    extensionMethod(4);
-//  ^^
-// [analyzer] unspecified
-// [cfe] Getter not found: 'extensionMethod'.
-  }
-}
-
-class A8 {}
-
-// Check that an instance setter in a class shadows extension
-// members with the same basename from extension E7.
-class A9 extends A8 {
-  void set extensionGetter(int _) {}
-  void set extensionMethod(int _) {}
-  void test() {
-    // The instance setter shadows the other extension's getter
-    extensionGetter = extensionGetter + 1;
-//                    ^^
-// [analyzer] unspecified
-// [cfe] The getter 'extensionGetter' isn't defined for the class 'A9'.
-    extensionGetter++;
-//  ^^
-// [analyzer] unspecified
-// [cfe] The getter 'extensionGetter' isn't defined for the class 'A9'.
-    extensionGetter;
-//  ^^
-// [analyzer] unspecified
-// [cfe] The getter 'extensionGetter' isn't defined for the class 'A9'.
-
-    // The instance setter shadows the other extension's method.
-    extensionMethod(4);
-//  ^^
-// [analyzer] unspecified
-// [cfe] The method 'extensionMethod' isn't defined for the class 'A9'.
-  }
-}
-
-// Define extensions on A10.
-extension E9 on A10 {
-  void set extensionSetter(int _) {}
-  void set extensionFieldSetter(int _) {}
-  int extensionMethod(int x) => -3;
-}
-
-// Check that a static getter in an extension shadows extension
-// members with the same basename from a different extension.
-extension E10 on A10 {
-  static int get extensionSetter => 1;
-  static final int extensionFieldSetter = 2;
-  static int get extensionMethod => 3;
-  void test() {
-    // The static getter shadows the other extension's setter
-    extensionSetter = extensionSetter + 1;
-//  ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'extensionSetter'.
-    extensionSetter++;
-//  ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'extensionSetter'.
-    extensionSetter = 0;
-//  ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'extensionSetter'.
-
-    // The static field shadows the other extension's setter
-    extensionFieldSetter = extensionFieldSetter + 1;
-//  ^^
-// [analyzer] unspecified
-// [cfe] Setter not found: 'extensionFieldSetter'.
-    extensionFieldSetter++;
-//  ^^
-// [analyzer] unspecified
-// [cfe] Setter not found: 'extensionFieldSetter'.
-    extensionFieldSetter = 0;
-//  ^^
-// [analyzer] unspecified
-// [cfe] Setter not found: 'extensionFieldSetter'.
-
-    // The static getter shadows the other extensions method
-    extensionMethod(4);
-//  ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVOCATION_OF_NON_FUNCTION_EXPRESSION
-//                     ^
-// [cfe] The method 'call' isn't defined for the class 'int'.
-  }
-}
-
-class A10 {}
-
-// Check that a static getter in a class shadows extension
-// members with the same basename from extension E9.
-class A11 extends A10 {
-  static int get extensionSetter => 1;
-  static final int extensionFieldSetter = 2;
-  static int get extensionMethod => 3;
-  void test() {
-    // The static getter shadows the other extension's setter
-    extensionSetter = extensionSetter + 1;
-//  ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'extensionSetter'.
-    extensionSetter++;
-//  ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'extensionSetter'.
-    extensionSetter = 0;
-//  ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'extensionSetter'.
-
-    // The static field shadows the other extension's setter
-    extensionFieldSetter = extensionFieldSetter + 1;
-//  ^^
-// [analyzer] unspecified
-// [cfe] Setter not found: 'extensionFieldSetter'.
-    extensionFieldSetter++;
-//  ^^
-// [analyzer] unspecified
-// [cfe] Setter not found: 'extensionFieldSetter'.
-    extensionFieldSetter = 0;
-//  ^^
-// [analyzer] unspecified
-// [cfe] Setter not found: 'extensionFieldSetter'.
-
-    // The static getter shadows the other extensions method
-    extensionMethod(4);
-//  ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVOCATION_OF_NON_FUNCTION_EXPRESSION
-//                 ^
-// [cfe] The method 'call' isn't defined for the class 'int'.
-  }
-}
-
-// Define extensions on A12.
-extension E11 on A12 {
-  int get extensionGetter => -1;
-  int extensionMethod(int x) => -3;
-}
-
-// Check that a static setter in an extension shadows extension
-// members with the same basename from a different extension.
-extension E12 on A12 {
-  static void set extensionGetter(int _) {}
-  static void set extensionMethod(int _) {}
-  void test() {
-    // The static setter shadows the other extension's getter
-    extensionGetter = extensionGetter + 1;
-//                    ^^
-// [analyzer] unspecified
-// [cfe] Getter not found: 'extensionGetter'.
-    extensionGetter++;
-//  ^^
-// [analyzer] unspecified
-// [cfe] Getter not found: 'extensionGetter'.
-    extensionGetter;
-//  ^^
-// [analyzer] unspecified
-// [cfe] Getter not found: 'extensionGetter'.
-
-    // The static setter shadows the other extension's method.
-    extensionMethod(4);
-//  ^^
-// [analyzer] unspecified
-// [cfe] Getter not found: 'extensionMethod'.
-  }
-}
-
-class A12 {}
-
-// Check that a static setter in a class shadows extension
-// members with the same basename from extension E11.
-class A13 extends A12 {
-  static void set extensionGetter(int _) {}
-  static void set extensionMethod(int _) {}
-  void test() {
-    // The static setter shadows the other extension's getter
-    extensionGetter = extensionGetter + 1;
-//                    ^^
-// [analyzer] unspecified
-// [cfe] Getter not found: 'extensionGetter'.
-    extensionGetter++;
-//  ^^
-// [analyzer] unspecified
-// [cfe] Getter not found: 'extensionGetter'.
-    extensionGetter;
-//  ^^
-// [analyzer] unspecified
-// [cfe] Getter not found: 'extensionGetter'.
-
-    // The static setter shadows the other extension's method.
-    extensionMethod(4);
-//  ^^
-// [analyzer] unspecified
-// [cfe] Getter not found: 'extensionMethod'.
-  }
-}
-
-void main() {
-  A1().test();
-  A2().test();
-  A3().test();
-  A4().test();
-  A6().test();
-  A7().test();
-  A8().test();
-  A9().test();
-  A10().test();
-  A11().test();
-  A12().test();
-  A13().test();
-}
diff --git a/tests/language_2/extension_methods/static_extension_internal_basename_shadowing_test.dart b/tests/language_2/extension_methods/static_extension_internal_basename_shadowing_test.dart
deleted file mode 100644
index 4d749247545..00000000000
--- a/tests/language_2/extension_methods/static_extension_internal_basename_shadowing_test.dart
+++ /dev/null
@@ -1,276 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-///////////////////////////////////////////////////////////////////////
-// The following tests check that setters or getters in an extension
-// correctly shadow members with the same basename in the surrounding
-// scope.
-///////////////////////////////////////////////////////////////////////
-
-String get topLevelGetter => "-1";
-void set topLevelSetter(String _) {}
-String topLevelField = "-3";
-String topLevelMethod(String x) => "-4";
-
-// Location that extension setters write to.
-int _storeTo = null;
-// Check that the most recent setter call set the value
-// of _storeTo.
-void checkSetter(int x) {
-  int written = _storeTo;
-  _storeTo = null;
-  Expect.equals(written, x);
-}
-
-// Check that an instance getter in an extension shadows top level
-// members with the same basename.
-extension E1 on A1 {
-  int get topLevelSetter => 1;
-  int get topLevelField => 2;
-  int get topLevelMethod => 3;
-  void test() {
-    // Reading the local getters is valid
-    Expect.equals(topLevelSetter + 1, 2);
-    Expect.equals(topLevelField + 1, 3);
-    Expect.equals(topLevelMethod + 1, 4);
-  }
-}
-
-class A1 {}
-
-// Check that an instance setter in an extension shadows top level
-// members with the same basename.
-extension E2 on A2 {
-  void set topLevelGetter(int x) {
-    _storeTo = x;
-  }
-
-  void set topLevelField(int x) {
-    _storeTo = x;
-  }
-
-  void set topLevelMethod(int x) {
-    _storeTo = x;
-  }
-
-  void test() {
-    checkSetter(topLevelGetter = 42);
-    checkSetter(topLevelField = 42);
-    checkSetter(topLevelMethod = 42);
-  }
-}
-
-class A2 {}
-
-// Check that a static getter in an extension shadows top level
-// members with the same basename.
-extension E3 on A3 {
-  static int get topLevelSetter => 1;
-  static int get topLevelField => 2;
-  static int get topLevelMethod => 3;
-  void test() {
-    // Reading the local getters is valid
-    Expect.equals(topLevelSetter + 1, 2);
-    Expect.equals(topLevelField + 1, 3);
-    Expect.equals(topLevelMethod + 1, 4);
-  }
-}
-
-class A3 {}
-
-// Check that a static setter in an extension shadows top level
-// members with the same basename.
-extension E4 on A4 {
-  static void set topLevelGetter(int x) {
-    _storeTo = x;
-  }
-
-  static void set topLevelField(int x) {
-    _storeTo = x;
-  }
-
-  static void set topLevelMethod(int x) {
-    _storeTo = x;
-  }
-
-  void test() {
-    checkSetter(topLevelGetter = 42);
-    checkSetter(topLevelField = 42);
-    checkSetter(topLevelMethod = 42);
-  }
-}
-
-class A4 {}
-
-// Define extensions on A6.
-extension E5 on A6 {
-  void set extensionSetter(int x) {}
-  int extensionMethod(int x) => -3;
-}
-
-// Check that an instance getter in an extension shadows extension
-// members with the same basename from a different extension.
-extension E6 on A6 {
-  int get extensionSetter => 1;
-  int get extensionMethod => 3;
-  void test() {
-    // Reading the local getters is valid
-    Expect.equals(extensionSetter + 1, 2);
-    Expect.equals(extensionMethod + 1, 4);
-  }
-}
-
-class A6 {}
-
-// Check that an instance getter in a class shadows extension
-// members with the same basename from extension E5.
-class A7 extends A6 {
-  int get extensionSetter => 1;
-  int get extensionMethod => 3;
-  void test() {
-    // Reading the local getters is valid
-    Expect.equals(extensionSetter + 1, 2);
-    Expect.equals(extensionMethod + 1, 4);
-  }
-}
-
-// Define extensions on A8.
-extension E7 on A8 {
-  int get extensionGetter => -1;
-  int extensionMethod(int x) => -3;
-}
-
-// Check that an instance setter in an extension shadows extension
-// members with the same basename from a different extension.
-extension E8 on A8 {
-  void set extensionGetter(int x) {
-    _storeTo = x;
-  }
-
-  void set extensionMethod(int x) {
-    _storeTo = x;
-  }
-
-  void test() {
-    checkSetter(extensionGetter = 42);
-    checkSetter(extensionMethod = 42);
-  }
-}
-
-class A8 {}
-
-// Check that an instance setter in a class shadows extension
-// members with the same basename from extension E7.
-class A9 extends A8 {
-  void set extensionGetter(int x) {
-    _storeTo = x;
-  }
-
-  void set extensionMethod(int x) {
-    _storeTo = x;
-  }
-
-  void test() {
-    checkSetter(extensionGetter = 42);
-    checkSetter(extensionMethod = 42);
-  }
-}
-
-// Define extensions on A10.
-extension E9 on A10 {
-  void set extensionSetter(int x) {}
-  void set extensionFieldSetter(int x) {}
-  int extensionMethod(int x) => -3;
-}
-
-// Check that a static getter in an extension shadows extension
-// members with the same basename from a different extension.
-extension E10 on A10 {
-  static int get extensionSetter => 1;
-  static final int extensionFieldSetter = 2;
-  static int get extensionMethod => 3;
-  void test() {
-    // Reading the local getters is valid
-    Expect.equals(extensionSetter + 1, 2);
-    Expect.equals(extensionFieldSetter + 1, 3);
-    Expect.equals(extensionMethod + 1, 4);
-  }
-}
-
-class A10 {}
-
-// Check that a static getter in a class shadows extension
-// members with the same basename from extension E9.
-class A11 extends A10 {
-  static int get extensionSetter => 1;
-  static final int extensionFieldSetter = 2;
-  static int get extensionMethod => 3;
-  void test() {
-    // Reading the local getters is valid
-    Expect.equals(extensionSetter + 1, 2);
-    Expect.equals(extensionFieldSetter + 1, 3);
-    Expect.equals(extensionMethod + 1, 4);
-  }
-}
-
-// Define extensions on A12.
-extension E11 on A12 {
-  int get extensionGetter => -1;
-  int extensionMethod(int x) => -3;
-}
-
-// Check that a static setter in an extension shadows extension
-// members with the same basename from a different extension.
-extension E12 on A12 {
-  static void set extensionGetter(int x) {
-    _storeTo = x;
-  }
-
-  static void set extensionMethod(int x) {
-    _storeTo = x;
-  }
-
-  void test() {
-    checkSetter(extensionGetter = 42);
-    checkSetter(extensionMethod = 42);
-  }
-}
-
-class A12 {}
-
-// Check that a static setter in a class shadows extension
-// members with the same basename from extension E11.
-class A13 extends A12 {
-  static void set extensionGetter(int x) {
-    _storeTo = x;
-  }
-
-  static void set extensionMethod(int x) {
-    _storeTo = x;
-  }
-
-  void test() {
-    checkSetter(extensionGetter = 42);
-    checkSetter(extensionMethod = 42);
-  }
-}
-
-void main() {
-  A1().test();
-  A2().test();
-  A3().test();
-  A4().test();
-  A6().test();
-  A7().test();
-  A8().test();
-  A9().test();
-  A10().test();
-  A11().test();
-  A12().test();
-  A13().test();
-}
diff --git a/tests/language_2/extension_methods/static_extension_internal_name_conflict_error_test.dart b/tests/language_2/extension_methods/static_extension_internal_name_conflict_error_test.dart
deleted file mode 100644
index 59776bd8ef2..00000000000
--- a/tests/language_2/extension_methods/static_extension_internal_name_conflict_error_test.dart
+++ /dev/null
@@ -1,267 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that errors are given for internal name conflicts in extension methods.
-
-// It is an error to have duplicate type parameter names.
-extension E1<T, T> on int {
-//              ^
-// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-// [cfe] A type variable can't have the same name as another.
-}
-
-extension E2 on int {}
-
-// It is an error to have duplicate extension names.
-extension E2 on int {}
-//        ^^
-// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-// [cfe] 'E2' is already declared in this scope.
-
-class E2 {}
-//    ^^
-// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-// [cfe] 'E2' is already declared in this scope.
-
-typedef E2 = int Function(int);
-//      ^^
-// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-// [cfe] 'E2' is already declared in this scope.
-
-void E2(int x) {}
-//   ^^
-// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-// [cfe] 'E2' is already declared in this scope.
-
-int E2 = 3;
-//  ^^
-// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-// [cfe] 'E2' is already declared in this scope.
-
-////////////////////////////////////////////////////////////////////
-// It is an error to have two static members with the same base name
-// unless one is a setter and one is a getter.
-//
-// The next set of tests check various combinations of member name
-// conflicts: first testing that members of the same kind (e.g.
-// method/method) induce conflicts for the various combinations of
-// static/instance; and then testing that members of different kind (e.g.
-// method/getter) induce conflicts for the various combinations of
-// static/instance.
-////////////////////////////////////////////////////////////////////
-
-// Check static members colliding with static members (of the same kind)
-extension E3 on int {
-  static int method() => 0;
-  static int get property => 1;
-  static void set property(int value) {}
-  static int field = 3;
-  static int field2 = 4;
-  //         ^
-  // [cfe] Conflicts with setter 'field2'.
-
-  static int method() => 0;
-  //         ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-  // [cfe] 'method' is already declared in this scope.
-  static int get property => 1;
-  //             ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-  // [cfe] 'property' is already declared in this scope.
-  static void set property(int value) {}
-  //              ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-  // [cfe] 'property' is already declared in this scope.
-  static int field = 3;
-  //         ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-  // [cfe] 'field' is already declared in this scope.
-  static int get field2 => 1;
-  //             ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-  // [cfe] 'field2' is already declared in this scope.
-  static void set field2(int value) {}
-  //              ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-  // [cfe] Conflicts with the implicit setter of the field 'field2'.
-}
-
-// Check instance members colliding with instance members (of the same kind).
-extension E4 on int {
-  int method() => 0;
-  int get property => 1;
-  void set property(int value) {}
-
-  int method() => 0;
-  //  ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-  // [cfe] 'method' is already declared in this scope.
-  int get property => 1;
-  //      ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-  // [cfe] 'property' is already declared in this scope.
-  void set property(int value) {}
-  //       ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-  // [cfe] 'property' is already declared in this scope.
-}
-
-// Check static members colliding with static members (of the same kind).
-extension E5 on int {
-  static int method() => 0;
-  //         ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
-  static int get property => 1;
-  //             ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Conflicts with setter 'property'.
-  static void set property(int value) {}
-  //              ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Conflicts with member 'property'.
-  static int get property2 => 1;
-  //             ^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Conflicts with setter 'property2'.
-  static void set property3(int x) {}
-  //              ^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Conflicts with member 'property3'.
-  static int field = 3;
-  //         ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Conflicts with setter 'field'.
-  static int field2 = 3;
-  //         ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
-
-  int method() => 0;
-  //  ^
-  // [cfe] 'method' is already declared in this scope.
-  int get property => 1;
-  //      ^
-  // [cfe] 'property' is already declared in this scope.
-  //      ^
-  // [cfe] Conflicts with setter 'property'.
-  void set property(int value) {}
-  //       ^
-  // [cfe] 'property' is already declared in this scope.
-  //       ^
-  // [cfe] Conflicts with member 'property'.
-  void set property2(int value) {}
-  //       ^
-  // [cfe] Conflicts with member 'property2'.
-  int get property3 => 1;
-  //      ^
-  // [cfe] Conflicts with setter 'property3'.
-  void set field(int value) {}
-  //       ^
-  // [cfe] Conflicts with the implicit setter of the field 'field'.
-  int get field2 => 1;
-  //      ^
-  // [cfe] 'field2' is already declared in this scope.
-}
-
-// Check a static method colliding with a static getter.
-extension E6 on int {
-  static int method() => 0;
-  static int get method => 1;
-  //             ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-  // [cfe] 'method' is already declared in this scope.
-}
-
-// Check a static method colliding with a static setter.
-extension E7 on int {
-  static int method() => 0;
-  //         ^
-  // [cfe] Conflicts with setter 'method'.
-  static void set method(int value) {}
-  //              ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-  // [cfe] Conflicts with member 'method'.
-}
-
-// Check a static method colliding with a static field.
-extension E8 on int {
-  static int method() => 0;
-  static int method = 3;
-  //         ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-  // [cfe] 'method' is already declared in this scope.
-}
-
-// Check an instance method colliding with an instance getter.
-extension E9 on int {
-  int method() => 0;
-  int get method => 1;
-  //      ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-  // [cfe] 'method' is already declared in this scope.
-}
-
-// Check an instance method colliding with an instance setter.
-extension E10 on int {
-  int method() => 0;
-  //  ^
-  // [cfe] Conflicts with setter 'method'.
-  void set method(int value) {}
-  //       ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-  // [cfe] Conflicts with member 'method'.
-}
-
-// Check a static method colliding with an instance getter.
-extension E11 on int {
-  static int method() => 0;
-  //         ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
-  int get method => 1;
-  //      ^
-  // [cfe] 'method' is already declared in this scope.
-}
-
-// Check a static method colliding with an instance setter.
-extension E12 on int {
-  static int method() => 0;
-  //         ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Conflicts with setter 'method'.
-  void set method(int value) {}
-  //       ^
-  // [cfe] Conflicts with member 'method'.
-}
-
-// Check an instance method colliding with a static getter.
-extension E13 on int {
-  int method() => 0;
-  static int get method => 1;
-  //             ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] 'method' is already declared in this scope.
-}
-
-// Check an instance method colliding with a static setter.
-extension E14 on int {
-  int method() => 0;
-  //  ^
-  // [cfe] Conflicts with setter 'method'.
-  static void set method(int value) {}
-  //              ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Conflicts with member 'method'.
-}
-
-// Check an instance method colliding with a static field.
-extension E15 on int {
-  int method() => 0;
-  static int method = 3;
-  //         ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] 'method' is already declared in this scope.
-}
-
-void main() {}
diff --git a/tests/language_2/extension_methods/static_extension_internal_resolution_0_test.dart b/tests/language_2/extension_methods/static_extension_internal_resolution_0_test.dart
deleted file mode 100644
index 5bcf11a8187..00000000000
--- a/tests/language_2/extension_methods/static_extension_internal_resolution_0_test.dart
+++ /dev/null
@@ -1,208 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests resolution of identifiers inside of extension methods
-
-// Test an extension MyExt with no members against:
-//   - a class A with only its own members
-//   - and another extension ExtraExt with only its own members
-
-import "package:expect/expect.dart";
-
-/////////////////////////////////////////////////////////////////////////
-// Note: These imports may be deliberately unused.  They bring certain
-// names into scope, in order to test that certain resolution choices are
-// made even in the presence of other symbols.
-/////////////////////////////////////////////////////////////////////////
-
-// Do Not Delete.
-// Bring global members into scope.
-import "helpers/global_scope.dart";
-
-// Do Not Delete.
-// Bring a class A with instance members into scope.
-import "helpers/class_no_shadow.dart";
-
-// Do Not Delete.
-// Bring an extension ExtraExt with no overlapping symbols into scope.
-import "helpers/extension_only.dart";
-
-const bool extensionValue = true;
-
-// An extension which defines no members of its own
-extension MyExt on A {
-  void testNakedIdentifiers() {
-    // Globals should resolve to the global name space, and not to the members
-    // of the other extension (when present)
-    {
-      int t0 = fieldInGlobalScope;
-      checkGlobalValue(t0);
-      int t1 = getterInGlobalScope;
-      checkGlobalValue(t1);
-      setterInGlobalScope = globalValue;
-      int t2 = methodInGlobalScope();
-      checkGlobalValue(t2);
-    }
-
-    // Instance members resolve to the instance methods and not the members
-    // of the other extension (when present)
-    {
-      String t0 = fieldInInstanceScope;
-      checkInstanceValue(t0);
-      String t1 = getterInInstanceScope;
-      checkInstanceValue(t0);
-      setterInInstanceScope = instanceValue;
-      String t2 = methodInInstanceScope();
-      checkInstanceValue(t0);
-    }
-
-    // Extension members resolve to the extension methods in the other
-    // extension (unresolved identifier "id" gets turned into "this.id",
-    // which is then subject to extension method lookup).
-    {
-      double t0 = fieldInOtherExtensionScope;
-      checkOtherExtensionValue(t0);
-      double t1 = getterInOtherExtensionScope;
-      checkOtherExtensionValue(t1);
-      setterInOtherExtensionScope = otherExtensionValue;
-      double t2 = methodInOtherExtensionScope();
-      checkOtherExtensionValue(t2);
-    }
-  }
-
-  void testIdentifiersOnThis() {
-    // Instance members resolve to the instance methods and not the members
-    // of the other extension (when present)
-    {
-      String t0 = this.fieldInInstanceScope;
-      checkInstanceValue(t0);
-      String t1 = this.getterInInstanceScope;
-      checkInstanceValue(t0);
-      this.setterInInstanceScope = instanceValue;
-      String t2 = this.methodInInstanceScope();
-      checkInstanceValue(t0);
-    }
-
-    // Extension members resolve to the extension methods in the other
-    // extension.
-    {
-      double t0 = this.fieldInOtherExtensionScope;
-      checkOtherExtensionValue(t0);
-      double t1 = this.getterInOtherExtensionScope;
-      checkOtherExtensionValue(t1);
-      this.setterInOtherExtensionScope = otherExtensionValue;
-      double t2 = this.methodInOtherExtensionScope();
-      checkOtherExtensionValue(t2);
-    }
-  }
-
-  void testIdentifiersOnInstance() {
-    A self = this;
-
-    // Instance members resolve to the instance methods and not the members
-    // of the other extension (when present)
-    {
-      String t0 = self.fieldInInstanceScope;
-      checkInstanceValue(t0);
-      String t1 = self.getterInInstanceScope;
-      checkInstanceValue(t1);
-      self.setterInInstanceScope = instanceValue;
-      String t2 = self.methodInInstanceScope();
-      checkInstanceValue(t2);
-    }
-
-    // Extension members resolve to the extension methods in the other
-    // extension.
-    {
-      double t0 = self.fieldInOtherExtensionScope;
-      checkOtherExtensionValue(t0);
-      double t1 = self.getterInOtherExtensionScope;
-      checkOtherExtensionValue(t1);
-      self.setterInOtherExtensionScope = otherExtensionValue;
-      double t2 = self.methodInOtherExtensionScope();
-      checkOtherExtensionValue(t2);
-    }
-  }
-
-  void instanceTest() {
-    MyExt(this).testNakedIdentifiers();
-    MyExt(this).testIdentifiersOnThis();
-    MyExt(this).testIdentifiersOnInstance();
-  }
-}
-
-class B extends A {
-  void testNakedIdentifiers() {
-    // Globals should resolve to the global name space, and not to the members
-    // of the other extension (when present)
-    {
-      int t0 = fieldInGlobalScope;
-      checkGlobalValue(t0);
-      int t1 = getterInGlobalScope;
-      checkGlobalValue(t1);
-      setterInGlobalScope = globalValue;
-      int t2 = methodInGlobalScope();
-      checkGlobalValue(t2);
-    }
-
-    // Instance members resolve to the instance methods and not the members
-    // of the other extension (when present)
-    {
-      String t0 = fieldInInstanceScope;
-      checkInstanceValue(t0);
-      String t1 = getterInInstanceScope;
-      checkInstanceValue(t0);
-      setterInInstanceScope = instanceValue;
-      String t2 = methodInInstanceScope();
-      checkInstanceValue(t0);
-    }
-
-    // Extension members resolve to the extension methods in the other
-    // extension (unresolved identifier "id" gets turned into "this.id",
-    // which is then subject to extension method lookup).
-    {
-      double t0 = fieldInOtherExtensionScope;
-      checkOtherExtensionValue(t0);
-      double t1 = getterInOtherExtensionScope;
-      checkOtherExtensionValue(t1);
-      setterInOtherExtensionScope = otherExtensionValue;
-      double t2 = methodInOtherExtensionScope();
-      checkOtherExtensionValue(t2);
-    }
-  }
-}
-
-void main() {
-  var a = new A();
-  a.instanceTest();
-  new B().testNakedIdentifiers();
-
-  // Check external resolution as well while we're here
-
-  // Instance members resolve to the instance methods and not the members
-  // of the other extension (when present)
-  {
-    String t0 = a.fieldInInstanceScope;
-    checkInstanceValue(t0);
-    String t1 = a.getterInInstanceScope;
-    checkInstanceValue(t1);
-    a.setterInInstanceScope = instanceValue;
-    String t2 = a.methodInInstanceScope();
-    checkInstanceValue(t2);
-  }
-
-  // Extension members resolve to the extension methods in the other
-  // extension.
-  {
-    double t0 = a.fieldInOtherExtensionScope;
-    checkOtherExtensionValue(t0);
-    double t1 = a.getterInOtherExtensionScope;
-    checkOtherExtensionValue(t1);
-    a.setterInOtherExtensionScope = otherExtensionValue;
-    double t2 = a.methodInOtherExtensionScope();
-    checkOtherExtensionValue(t2);
-  }
-}
diff --git a/tests/language_2/extension_methods/static_extension_internal_resolution_1_test.dart b/tests/language_2/extension_methods/static_extension_internal_resolution_1_test.dart
deleted file mode 100644
index 9035ae3764a..00000000000
--- a/tests/language_2/extension_methods/static_extension_internal_resolution_1_test.dart
+++ /dev/null
@@ -1,244 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests resolution of identifiers inside of extension methods
-
-// Test an extension MyExt with no members against:
-//   - a class A with only its own members
-//   - and an extension ExtraExt which overlaps the global and class members
-
-import "package:expect/expect.dart";
-
-/////////////////////////////////////////////////////////////////////////
-// Note: These imports may be deliberately unused.  They bring certain
-// names into scope, in order to test that certain resolution choices are
-// made even in the presence of other symbols.
-/////////////////////////////////////////////////////////////////////////
-
-// Do Not Delete.
-// Bring global members into scope.
-import "helpers/global_scope.dart";
-
-// Do Not Delete.
-// Bring a class A with instance members into scope.
-import "helpers/class_no_shadow.dart";
-
-// Do Not Delete.
-// Bring an extension ExtraExt that overlaps the global and instance names
-// into scope.
-import "helpers/extension_global_instance.dart";
-
-const bool extensionValue = true;
-
-// An extension which defines no members of its own
-extension MyExt on A {
-  void testNakedIdentifiers() {
-    // Globals should resolve to the global name space, and not to the members
-    // of the other extension (when present)
-    {
-      int t0 = fieldInGlobalScope;
-      checkGlobalValue(t0);
-      int t1 = getterInGlobalScope;
-      checkGlobalValue(t1);
-      setterInGlobalScope = globalValue;
-      int t2 = methodInGlobalScope();
-      checkGlobalValue(t2);
-    }
-
-    // Instance members resolve to the instance methods and not the members
-    // of the other extension (when present)
-    {
-      String t0 = fieldInInstanceScope;
-      checkInstanceValue(t0);
-      String t1 = getterInInstanceScope;
-      checkInstanceValue(t0);
-      setterInInstanceScope = instanceValue;
-      String t2 = methodInInstanceScope();
-      checkInstanceValue(t0);
-    }
-
-    // Extension members resolve to the extension methods in the other
-    // extension (unresolved identifier "id" gets turned into "this.id",
-    // which is then subject to extension method lookup).
-    {
-      double t0 = fieldInOtherExtensionScope;
-      checkOtherExtensionValue(t0);
-      double t1 = getterInOtherExtensionScope;
-      checkOtherExtensionValue(t1);
-      setterInOtherExtensionScope = otherExtensionValue;
-      double t2 = methodInOtherExtensionScope();
-      checkOtherExtensionValue(t2);
-    }
-  }
-
-  void testIdentifiersOnThis() {
-    // Global symbols prefixed by `this` resolve to the version on the other
-    // extension
-    {
-      double t0 = this.fieldInGlobalScope;
-      checkOtherExtensionValue(t0);
-      double t1 = this.getterInGlobalScope;
-      checkOtherExtensionValue(t1);
-      this.setterInGlobalScope = otherExtensionValue;
-      double t2 = this.methodInGlobalScope();
-      checkOtherExtensionValue(t2);
-    }
-
-    // Instance members resolve to the instance methods and not the members
-    // of the other extension (when present)
-    {
-      String t0 = this.fieldInInstanceScope;
-      checkInstanceValue(t0);
-      String t1 = this.getterInInstanceScope;
-      checkInstanceValue(t0);
-      this.setterInInstanceScope = instanceValue;
-      String t2 = this.methodInInstanceScope();
-      checkInstanceValue(t0);
-    }
-
-    // Extension members resolve to the extension methods in the other
-    // extension.
-    {
-      double t0 = this.fieldInOtherExtensionScope;
-      checkOtherExtensionValue(t0);
-      double t1 = this.getterInOtherExtensionScope;
-      checkOtherExtensionValue(t1);
-      this.setterInOtherExtensionScope = otherExtensionValue;
-      double t2 = this.methodInOtherExtensionScope();
-      checkOtherExtensionValue(t2);
-    }
-  }
-
-  void testIdentifiersOnInstance() {
-    A self = this;
-
-    // Global symbols on an instance resolve to the version on the other
-    // extension
-    {
-      double t0 = self.fieldInGlobalScope;
-      checkOtherExtensionValue(t0);
-      double t1 = self.getterInGlobalScope;
-      checkOtherExtensionValue(t1);
-      self.setterInGlobalScope = otherExtensionValue;
-      double t2 = self.methodInGlobalScope();
-      checkOtherExtensionValue(t2);
-    }
-    // Instance members resolve to the instance methods and not the members
-    // of the other extension (when present)
-    {
-      String t0 = self.fieldInInstanceScope;
-      checkInstanceValue(t0);
-      String t1 = self.getterInInstanceScope;
-      checkInstanceValue(t1);
-      self.setterInInstanceScope = instanceValue;
-      String t2 = self.methodInInstanceScope();
-      checkInstanceValue(t2);
-    }
-
-    // Extension members resolve to the extension methods in the other
-    // extension.
-    {
-      double t0 = self.fieldInOtherExtensionScope;
-      checkOtherExtensionValue(t0);
-      double t1 = self.getterInOtherExtensionScope;
-      checkOtherExtensionValue(t1);
-      self.setterInOtherExtensionScope = otherExtensionValue;
-      double t2 = self.methodInOtherExtensionScope();
-      checkOtherExtensionValue(t2);
-    }
-  }
-
-  void instanceTest() {
-    MyExt(this).testNakedIdentifiers();
-    MyExt(this).testIdentifiersOnThis();
-    MyExt(this).testIdentifiersOnInstance();
-  }
-}
-
-class B extends A {
-  void testNakedIdentifiers() {
-    // Globals should resolve to the global name space, and not to the members
-    // of the other extension (when present)
-    {
-      int t0 = fieldInGlobalScope;
-      checkGlobalValue(t0);
-      int t1 = getterInGlobalScope;
-      checkGlobalValue(t1);
-      setterInGlobalScope = globalValue;
-      int t2 = methodInGlobalScope();
-      checkGlobalValue(t2);
-    }
-
-    // Instance members resolve to the instance methods and not the members
-    // of the other extension (when present)
-    {
-      String t0 = fieldInInstanceScope;
-      checkInstanceValue(t0);
-      String t1 = getterInInstanceScope;
-      checkInstanceValue(t0);
-      setterInInstanceScope = instanceValue;
-      String t2 = methodInInstanceScope();
-      checkInstanceValue(t0);
-    }
-
-    // Extension members resolve to the extension methods in the other
-    // extension (unresolved identifier "id" gets turned into "this.id",
-    // which is then subject to extension method lookup).
-    {
-      double t0 = fieldInOtherExtensionScope;
-      checkOtherExtensionValue(t0);
-      double t1 = getterInOtherExtensionScope;
-      checkOtherExtensionValue(t1);
-      setterInOtherExtensionScope = otherExtensionValue;
-      double t2 = methodInOtherExtensionScope();
-      checkOtherExtensionValue(t2);
-    }
-  }
-}
-
-void main() {
-  var a = new A();
-  a.instanceTest();
-  new B().testNakedIdentifiers();
-
-  // Check external resolution as well while we're here
-
-  // Global symbols on an instance resolve to the version on the other
-  // extension
-  {
-    double t0 = a.fieldInGlobalScope;
-    checkOtherExtensionValue(t0);
-    double t1 = a.getterInGlobalScope;
-    checkOtherExtensionValue(t1);
-    a.setterInGlobalScope = otherExtensionValue;
-    double t2 = a.methodInGlobalScope();
-    checkOtherExtensionValue(t2);
-  }
-
-  // Instance members resolve to the instance methods and not the members
-  // of the other extension (when present)
-  {
-    String t0 = a.fieldInInstanceScope;
-    checkInstanceValue(t0);
-    String t1 = a.getterInInstanceScope;
-    checkInstanceValue(t1);
-    a.setterInInstanceScope = instanceValue;
-    String t2 = a.methodInInstanceScope();
-    checkInstanceValue(t2);
-  }
-
-  // Extension members resolve to the extension methods in the other
-  // extension.
-  {
-    double t0 = a.fieldInOtherExtensionScope;
-    checkOtherExtensionValue(t0);
-    double t1 = a.getterInOtherExtensionScope;
-    checkOtherExtensionValue(t1);
-    a.setterInOtherExtensionScope = otherExtensionValue;
-    double t2 = a.methodInOtherExtensionScope();
-    checkOtherExtensionValue(t2);
-  }
-}
diff --git a/tests/language_2/extension_methods/static_extension_internal_resolution_2_test.dart b/tests/language_2/extension_methods/static_extension_internal_resolution_2_test.dart
deleted file mode 100644
index 2276f391e18..00000000000
--- a/tests/language_2/extension_methods/static_extension_internal_resolution_2_test.dart
+++ /dev/null
@@ -1,325 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests resolution of identifiers inside of extension methods
-
-// Test an extension MyExt with members whose names overlap with names from the
-// global, and instance scopes:
-//   - a class A with only its own members
-//   - an extension ExtraExt which has only its own members
-
-import "package:expect/expect.dart";
-
-/////////////////////////////////////////////////////////////////////////
-// Note: These imports may be deliberately unused.  They bring certain
-// names into scope, in order to test that certain resolution choices are
-// made even in the presence of other symbols.
-/////////////////////////////////////////////////////////////////////////
-
-// Do Not Delete.
-// Bring global members into scope.
-import "helpers/global_scope.dart";
-
-// Do Not Delete.
-// Bring a class A with instance members into scope.
-import "helpers/class_no_shadow.dart";
-
-// Do Not Delete.
-// Bring an extension ExtraExt with no overlapping symbols into scope.
-import "helpers/extension_only.dart";
-
-const bool extensionValue = true;
-
-void checkExtensionValue(bool x) {
-  Expect.equals(x, extensionValue);
-}
-
-// An extension which defines all members
-extension MyExt on A {
-  bool get fieldInGlobalScope => true;
-  bool get getterInGlobalScope => true;
-  set setterInGlobalScope(bool x) {
-    Expect.equals(true, x);
-  }
-
-  bool methodInGlobalScope() => true;
-
-  bool get fieldInInstanceScope => true;
-  bool get getterInInstanceScope => true;
-  set setterInInstanceScope(bool x) {
-    Expect.equals(true, x);
-  }
-
-  bool methodInInstanceScope() => true;
-
-  bool get fieldInExtensionScope => true;
-  bool get getterInExtensionScope => true;
-  set setterInExtensionScope(bool x) {
-    Expect.equals(true, x);
-  }
-
-  bool methodInExtensionScope() => true;
-
-  void testNakedIdentifiers() {
-    // Globals should resolve to local extension versions
-    {
-      bool t0 = fieldInGlobalScope;
-      checkExtensionValue(t0);
-      bool t1 = getterInGlobalScope;
-      checkExtensionValue(t1);
-      setterInGlobalScope = extensionValue;
-      bool t2 = methodInGlobalScope();
-      checkExtensionValue(t2);
-    }
-
-    // Un-prefixed instance members resolve to the local extension versions
-    {
-      bool t0 = fieldInInstanceScope;
-      checkExtensionValue(t0);
-      bool t1 = getterInInstanceScope;
-      checkExtensionValue(t0);
-      setterInInstanceScope = extensionValue;
-      bool t2 = methodInInstanceScope();
-      checkExtensionValue(t0);
-    }
-
-    // Extension members resolve to the extension methods in this extension
-    {
-      bool t0 = fieldInExtensionScope;
-      checkExtensionValue(t0);
-      bool t1 = getterInExtensionScope;
-      checkExtensionValue(t1);
-      setterInExtensionScope = extensionValue;
-      bool t2 = methodInExtensionScope();
-      checkExtensionValue(t2);
-    }
-
-    // Extension members not on this extension resolve to the extension methods
-    // in the other extension (unresolved identifier "id" gets turned into
-    // "this.id", which is then subject to extension method lookup).
-    {
-      double t0 = fieldInOtherExtensionScope;
-      checkOtherExtensionValue(t0);
-      double t1 = getterInOtherExtensionScope;
-      checkOtherExtensionValue(t1);
-      setterInOtherExtensionScope = otherExtensionValue;
-      double t2 = methodInOtherExtensionScope();
-      checkOtherExtensionValue(t2);
-    }
-  }
-
-  void testIdentifiersOnThis() {
-    // Globals should resolve to local extension versions
-    {
-      bool t0 = this.fieldInGlobalScope;
-      checkExtensionValue(t0);
-      bool t1 = this.getterInGlobalScope;
-      checkExtensionValue(t1);
-      this.setterInGlobalScope = extensionValue;
-      bool t2 = this.methodInGlobalScope();
-      checkExtensionValue(t2);
-    }
-
-    // Instance members resolve to the instance methods and not the members
-    // of the extension
-    {
-      String t0 = this.fieldInInstanceScope;
-      checkInstanceValue(t0);
-      String t1 = this.getterInInstanceScope;
-      checkInstanceValue(t0);
-      this.setterInInstanceScope = instanceValue;
-      String t2 = this.methodInInstanceScope();
-      checkInstanceValue(t0);
-    }
-
-    // Extension members resolve to the extension methods on this extension
-    {
-      bool t0 = this.fieldInExtensionScope;
-      checkExtensionValue(t0);
-      bool t1 = this.getterInExtensionScope;
-      checkExtensionValue(t1);
-      this.setterInExtensionScope = extensionValue;
-      bool t2 = this.methodInExtensionScope();
-      checkExtensionValue(t2);
-    }
-
-    // Extension members not on this extension resolve to the extension methods
-    // in the other extension.
-    {
-      double t0 = this.fieldInOtherExtensionScope;
-      checkOtherExtensionValue(t0);
-      double t1 = this.getterInOtherExtensionScope;
-      checkOtherExtensionValue(t1);
-      this.setterInOtherExtensionScope = otherExtensionValue;
-      double t2 = this.methodInOtherExtensionScope();
-      checkOtherExtensionValue(t2);
-    }
-  }
-
-  void testIdentifiersOnInstance() {
-    A self = this;
-
-    // Globals should resolve to local extension versions
-    {
-      bool t0 = self.fieldInGlobalScope;
-      checkExtensionValue(t0);
-      bool t1 = self.getterInGlobalScope;
-      checkExtensionValue(t1);
-      self.setterInGlobalScope = extensionValue;
-      bool t2 = self.methodInGlobalScope();
-      checkExtensionValue(t2);
-    }
-
-    // Instance members resolve to the instance methods and not the members
-    // of the extension
-    {
-      String t0 = self.fieldInInstanceScope;
-      checkInstanceValue(t0);
-      String t1 = self.getterInInstanceScope;
-      checkInstanceValue(t0);
-      self.setterInInstanceScope = instanceValue;
-      String t2 = self.methodInInstanceScope();
-      checkInstanceValue(t0);
-    }
-
-    // Extension members resolve to the extension methods on this extension
-    {
-      bool t0 = self.fieldInExtensionScope;
-      checkExtensionValue(t0);
-      bool t1 = self.getterInExtensionScope;
-      checkExtensionValue(t1);
-      self.setterInExtensionScope = extensionValue;
-      bool t2 = self.methodInExtensionScope();
-      checkExtensionValue(t2);
-    }
-
-    // Extension members not on this extension resolve to the extension methods
-    // in the other extension.
-    {
-      double t0 = self.fieldInOtherExtensionScope;
-      checkOtherExtensionValue(t0);
-      double t1 = self.getterInOtherExtensionScope;
-      checkOtherExtensionValue(t1);
-      self.setterInOtherExtensionScope = otherExtensionValue;
-      double t2 = self.methodInOtherExtensionScope();
-      checkOtherExtensionValue(t2);
-    }
-  }
-
-  void instanceTest() {
-    MyExt(this).testNakedIdentifiers();
-    MyExt(this).testIdentifiersOnThis();
-    MyExt(this).testIdentifiersOnInstance();
-  }
-}
-
-class B extends A {
-  void testNakedIdentifiers() {
-    // Globals should resolve to the global name space, and not to the members
-    // of the other extension (when present)
-    {
-      int t0 = fieldInGlobalScope;
-      checkGlobalValue(t0);
-      int t1 = getterInGlobalScope;
-      checkGlobalValue(t1);
-      setterInGlobalScope = globalValue;
-      int t2 = methodInGlobalScope();
-      checkGlobalValue(t2);
-    }
-
-    // Instance members resolve to the instance methods and not the members
-    // of the other extension (when present)
-    {
-      String t0 = fieldInInstanceScope;
-      checkInstanceValue(t0);
-      String t1 = getterInInstanceScope;
-      checkInstanceValue(t0);
-      setterInInstanceScope = instanceValue;
-      String t2 = methodInInstanceScope();
-      checkInstanceValue(t0);
-    }
-
-    // Extension members defined only in this extension resolve correctly.
-    {
-      bool t0 = fieldInExtensionScope;
-      checkExtensionValue(t0);
-      bool t1 = getterInExtensionScope;
-      checkExtensionValue(t1);
-      setterInExtensionScope = extensionValue;
-      bool t2 = methodInExtensionScope();
-      checkExtensionValue(t2);
-    }
-
-    // Extension members defined in the external extension resolve correctly
-    // (an unresolved identifier "id" gets turned into "this.id",
-    // which is then subject to extension method lookup).
-    {
-      double t0 = fieldInOtherExtensionScope;
-      checkOtherExtensionValue(t0);
-      double t1 = getterInOtherExtensionScope;
-      checkOtherExtensionValue(t1);
-      setterInOtherExtensionScope = otherExtensionValue;
-      double t2 = methodInOtherExtensionScope();
-      checkOtherExtensionValue(t2);
-    }
-  }
-}
-
-void main() {
-  var a = new A();
-  a.instanceTest();
-  new B().testNakedIdentifiers();
-
-  // Check external resolution as well while we're here
-
-  // Global symbols on an instance resolve to the version on this
-  // extension
-  {
-    bool t0 = a.fieldInGlobalScope;
-    checkExtensionValue(t0);
-    bool t1 = a.getterInGlobalScope;
-    checkExtensionValue(t1);
-    a.setterInGlobalScope = extensionValue;
-    bool t2 = a.methodInGlobalScope();
-    checkExtensionValue(t2);
-  }
-
-  // Instance members resolve to the instance methods and not the members
-  // of the other extension (when present)
-  {
-    String t0 = a.fieldInInstanceScope;
-    checkInstanceValue(t0);
-    String t1 = a.getterInInstanceScope;
-    checkInstanceValue(t1);
-    a.setterInInstanceScope = instanceValue;
-    String t2 = a.methodInInstanceScope();
-    checkInstanceValue(t2);
-  }
-
-  // Extension members resolve to the extension methods in this
-  // extension.
-  {
-    bool t0 = a.fieldInExtensionScope;
-    checkExtensionValue(t0);
-    bool t1 = a.getterInExtensionScope;
-    checkExtensionValue(t1);
-    a.setterInExtensionScope = extensionValue;
-    bool t2 = a.methodInExtensionScope();
-    checkExtensionValue(t2);
-  }
-
-  // Extension members resolve to the extension methods in the other
-  // extension.
-  {
-    double t0 = a.fieldInOtherExtensionScope;
-    checkOtherExtensionValue(t0);
-    double t1 = a.getterInOtherExtensionScope;
-    checkOtherExtensionValue(t1);
-    a.setterInOtherExtensionScope = otherExtensionValue;
-    double t2 = a.methodInOtherExtensionScope();
-    checkOtherExtensionValue(t2);
-  }
-}
diff --git a/tests/language_2/extension_methods/static_extension_internal_resolution_3_error_test.dart b/tests/language_2/extension_methods/static_extension_internal_resolution_3_error_test.dart
deleted file mode 100644
index f5de7e0559d..00000000000
--- a/tests/language_2/extension_methods/static_extension_internal_resolution_3_error_test.dart
+++ /dev/null
@@ -1,262 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests resolution of identifiers inside of extension methods
-
-// Test the error cases for an extension MyExt with member names
-// overlapping the global and instance scopes against:
-//   - a class A with only its own members
-//   - an extension ExtraExt which has global and instance members as well as
-//     its own
-
-import "package:expect/expect.dart";
-
-/////////////////////////////////////////////////////////////////////////
-// Note: These imports may be deliberately unused.  They bring certain
-// names into scope, in order to test that certain resolution choices are
-// made even in the presence of other symbols.
-/////////////////////////////////////////////////////////////////////////
-
-// Do Not Delete.
-// Bring global members into scope.
-import "helpers/global_scope.dart";
-
-// Do Not Delete.
-// Bring a class A with instance members into scope.
-import "helpers/class_no_shadow.dart";
-
-// Do Not Delete.
-// Bring an extension ExtraExt with members that overlap the global and instance
-// names into scope.
-import "helpers/extension_global_instance.dart";
-
-const bool extensionValue = true;
-
-void checkExtensionValue(bool x) {
-  Expect.equals(x, extensionValue);
-}
-
-// An extension which defines members of its own, as well members overlapping
-// the instance and global names.
-extension MyExt on A {
-  bool get fieldInGlobalScope => extensionValue;
-  bool get getterInGlobalScope => extensionValue;
-  set setterInGlobalScope(bool x) {
-    checkExtensionValue(x);
-  }
-
-  bool methodInGlobalScope() => extensionValue;
-
-  bool get fieldInInstanceScope => extensionValue;
-  bool get getterInInstanceScope => extensionValue;
-  set setterInInstanceScope(bool x) {
-    checkExtensionValue(x);
-  }
-
-  bool methodInInstanceScope() => extensionValue;
-
-  bool get fieldInExtensionScope => extensionValue;
-  bool get getterInExtensionScope => extensionValue;
-  set setterInExtensionScope(bool x) {
-    checkExtensionValue(x);
-  }
-
-  bool methodInExtensionScope() => extensionValue;
-
-  void testNakedIdentifiers() {
-    // Globals should resolve to local extension versions
-    {
-      // No errors: see static_extension_internal_resolution_3_test.dart
-    }
-
-    // Un-prefixed instance members resolve to the local extension versions
-    {
-      // No errors: see static_extension_internal_resolution_3_test.dart
-    }
-
-    // Extension members resolve to the extension methods in this extension
-    {
-      // No errors: see static_extension_internal_resolution_3_test.dart
-    }
-
-    // Extension members not on this extension resolve to the extension methods
-    // in the other extension (unresolved identifier "id" gets turned into
-    // "this.id", which is then subject to extension method lookup).
-    {
-      // No errors: see static_extension_internal_resolution_3_test.dart
-    }
-  }
-
-  void testIdentifiersOnThis() {
-    // Prefixed globals are ambiguous
-    {
-      bool t0 = this.fieldInGlobalScope;
-      //             ^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The property 'fieldInGlobalScope' is defined in multiple extensions for 'A' and neither is more specific.
-      checkExtensionValue(t0);
-      bool t1 = this.getterInGlobalScope;
-      //             ^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The property 'getterInGlobalScope' is defined in multiple extensions for 'A' and neither is more specific.
-      checkExtensionValue(t1);
-      this.setterInGlobalScope = extensionValue;
-      //   ^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The property 'setterInGlobalScope' is defined in multiple extensions for 'A' and neither is more specific.
-      bool t2 = this.methodInGlobalScope();
-      //             ^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The method 'methodInGlobalScope' is defined in multiple extensions for 'A' and neither is more specific.
-      checkExtensionValue(t2);
-    }
-
-    // Instance members resolve to the instance methods and not the members
-    // of either extension
-    {
-      // No errors: see static_extension_internal_resolution_3_test.dart
-    }
-
-    // Extension members resolve to the extension methods on this extension
-    {
-      // No errors: see static_extension_internal_resolution_3_test.dart
-    }
-
-    // Extension members not on this extension resolve to the extension methods
-    // in the other extension.
-    {
-      // No errors: see static_extension_internal_resolution_3_test.dart
-    }
-  }
-
-  void testIdentifiersOnInstance() {
-    A self = this;
-
-    // Prefixed globals are ambiguous
-    {
-      bool t0 = self.fieldInGlobalScope;
-      //             ^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The property 'fieldInGlobalScope' is defined in multiple extensions for 'A' and neither is more specific.
-      checkExtensionValue(t0);
-      bool t1 = self.getterInGlobalScope;
-      //             ^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The property 'getterInGlobalScope' is defined in multiple extensions for 'A' and neither is more specific.
-      checkExtensionValue(t1);
-      self.setterInGlobalScope = extensionValue;
-      //   ^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The property 'setterInGlobalScope' is defined in multiple extensions for 'A' and neither is more specific.
-      bool t2 = self.methodInGlobalScope();
-      //             ^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The method 'methodInGlobalScope' is defined in multiple extensions for 'A' and neither is more specific.
-      checkExtensionValue(t2);
-    }
-
-    // Instance members resolve to the instance methods and not the members
-    // of the extension
-    {
-      // No errors: see static_extension_internal_resolution_3_test.dart
-    }
-
-    // Extension members resolve to the extension methods on this extension
-    {
-      // No errors: see static_extension_internal_resolution_3_test.dart
-    }
-
-    // Extension members not on this extension resolve to the extension methods
-    // in the other extension.
-    {
-      // No errors: see static_extension_internal_resolution_3_test.dart
-    }
-  }
-
-  void instanceTest() {
-    MyExt(this).testNakedIdentifiers();
-    MyExt(this).testIdentifiersOnThis();
-    MyExt(this).testIdentifiersOnInstance();
-  }
-}
-
-class B extends A {
-  void testNakedIdentifiers() {
-    // Globals should resolve to the global name space, and not to the members
-    // of either extension
-    {
-      // No errors: see static_extension_internal_resolution_3_test.dart
-    }
-
-    // Instance members resolve to the instance methods and not the members
-    // of the other extension (when present)
-    {
-      // No errors: see static_extension_internal_resolution_3_test.dart
-    }
-
-    // Extension members resolve to the extension methods in the local
-    // extension.
-    {
-      // No errors: see static_extension_internal_resolution_3_test.dart
-    }
-
-    // Extension members resolve to the extension methods in the other
-    // extension (unresolved identifier "id" gets turned into "this.id",
-    // which is then subject to extension method lookup).
-    {
-      // No errors: see static_extension_internal_resolution_3_test.dart
-    }
-  }
-}
-
-void main() {
-  var a = new A();
-  a.instanceTest();
-  new B().testNakedIdentifiers();
-
-  // Check external resolution as well while we're here
-
-  // Global names come from both extensions and hence are ambiguous.
-  {
-    bool t0 = a.fieldInGlobalScope;
-    //          ^^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-    // [cfe] The property 'fieldInGlobalScope' is defined in multiple extensions for 'A' and neither is more specific.
-    checkExtensionValue(t0);
-    bool t1 = a.getterInGlobalScope;
-    //          ^^^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-    // [cfe] The property 'getterInGlobalScope' is defined in multiple extensions for 'A' and neither is more specific.
-    checkExtensionValue(t1);
-    a.setterInGlobalScope = extensionValue;
-    //^^^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-    // [cfe] The property 'setterInGlobalScope' is defined in multiple extensions for 'A' and neither is more specific.
-    bool t2 = a.methodInGlobalScope();
-    //          ^^^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-    // [cfe] The method 'methodInGlobalScope' is defined in multiple extensions for 'A' and neither is more specific.
-    checkExtensionValue(t2);
-  }
-
-  // Instance members resolve to the instance methods and not the members
-  // of the other extension (when present)
-  {
-    // No errors: see static_extension_internal_resolution_3_test.dart
-  }
-
-  // Extension members resolve to the extension methods in this
-  // extension.
-  {
-    // No errors: see static_extension_internal_resolution_3_test.dart
-  }
-
-  // Extension members resolve to the extension methods in the other
-  // extension.
-  {
-    // No errors: see static_extension_internal_resolution_3_test.dart
-  }
-}
diff --git a/tests/language_2/extension_methods/static_extension_internal_resolution_3_test.dart b/tests/language_2/extension_methods/static_extension_internal_resolution_3_test.dart
deleted file mode 100644
index ebe18c587d2..00000000000
--- a/tests/language_2/extension_methods/static_extension_internal_resolution_3_test.dart
+++ /dev/null
@@ -1,309 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests resolution of identifiers inside of extension methods
-
-// Test the non error cases for an extension MyExt with member names
-// overlapping the global and instance scopes against:
-//   - a class A with only its own members
-//   - an extension ExtraExt which has global and instance members as well as
-//     its own
-
-import "package:expect/expect.dart";
-
-/////////////////////////////////////////////////////////////////////////
-// Note: These imports may be deliberately unused.  They bring certain
-// names into scope, in order to test that certain resolution choices are
-// made even in the presence of other symbols.
-/////////////////////////////////////////////////////////////////////////
-
-// Do Not Delete.
-// Bring global members into scope.
-import "helpers/global_scope.dart";
-
-// Do Not Delete.
-// Bring a class A with instance members into scope.
-import "helpers/class_no_shadow.dart";
-
-// Do Not Delete.
-// Bring an extension ExtraExt with members that overlap the global and instance
-// names into scope.
-import "helpers/extension_global_instance.dart";
-
-const bool extensionValue = true;
-
-void checkExtensionValue(bool x) {
-  Expect.equals(x, extensionValue);
-}
-
-// An extension which defines members of its own, as well members overlapping
-// the instance and global names.
-extension MyExt on A {
-  bool get fieldInGlobalScope => extensionValue;
-  bool get getterInGlobalScope => extensionValue;
-  set setterInGlobalScope(bool x) {
-    checkExtensionValue(x);
-  }
-
-  bool methodInGlobalScope() => extensionValue;
-
-  bool get fieldInInstanceScope => extensionValue;
-  bool get getterInInstanceScope => extensionValue;
-  set setterInInstanceScope(bool x) {
-    checkExtensionValue(x);
-  }
-
-  bool methodInInstanceScope() => extensionValue;
-
-  bool get fieldInExtensionScope => extensionValue;
-  bool get getterInExtensionScope => extensionValue;
-  set setterInExtensionScope(bool x) {
-    checkExtensionValue(x);
-  }
-
-  bool methodInExtensionScope() => extensionValue;
-
-  void testNakedIdentifiers() {
-    // Globals should resolve to local extension versions
-    {
-      bool t0 = fieldInGlobalScope;
-      checkExtensionValue(t0);
-      bool t1 = getterInGlobalScope;
-      checkExtensionValue(t1);
-      setterInGlobalScope = extensionValue;
-      bool t2 = methodInGlobalScope();
-      checkExtensionValue(t2);
-    }
-
-    // Un-prefixed instance members resolve to the local extension versions
-    {
-      bool t0 = fieldInInstanceScope;
-      checkExtensionValue(t0);
-      bool t1 = getterInInstanceScope;
-      checkExtensionValue(t0);
-      setterInInstanceScope = extensionValue;
-      bool t2 = methodInInstanceScope();
-      checkExtensionValue(t0);
-    }
-
-    // Extension members resolve to the extension methods in this extension
-    {
-      bool t0 = fieldInExtensionScope;
-      checkExtensionValue(t0);
-      bool t1 = getterInExtensionScope;
-      checkExtensionValue(t1);
-      setterInExtensionScope = extensionValue;
-      bool t2 = methodInExtensionScope();
-      checkExtensionValue(t2);
-    }
-
-    // Extension members not on this extension resolve to the extension methods
-    // in the other extension (unresolved identifier "id" gets turned into
-    // "this.id", which is then subject to extension method lookup).
-    {
-      double t0 = fieldInOtherExtensionScope;
-      checkOtherExtensionValue(t0);
-      double t1 = getterInOtherExtensionScope;
-      checkOtherExtensionValue(t1);
-      setterInOtherExtensionScope = otherExtensionValue;
-      double t2 = methodInOtherExtensionScope();
-      checkOtherExtensionValue(t2);
-    }
-  }
-
-  void testIdentifiersOnThis() {
-    // Prefixed globals are ambiguous
-    {
-      // Error cases tested in static_extension_internal_resolution_3_error_test.dart
-    }
-
-    // Instance members resolve to the instance methods and not the members
-    // of either extension
-    {
-      String t0 = this.fieldInInstanceScope;
-      checkInstanceValue(t0);
-      String t1 = this.getterInInstanceScope;
-      checkInstanceValue(t0);
-      this.setterInInstanceScope = instanceValue;
-      String t2 = this.methodInInstanceScope();
-      checkInstanceValue(t0);
-    }
-
-    // Extension members resolve to the extension methods on this extension
-    {
-      bool t0 = this.fieldInExtensionScope;
-      checkExtensionValue(t0);
-      bool t1 = this.getterInExtensionScope;
-      checkExtensionValue(t1);
-      this.setterInExtensionScope = extensionValue;
-      bool t2 = this.methodInExtensionScope();
-      checkExtensionValue(t2);
-    }
-
-    // Extension members not on this extension resolve to the extension methods
-    // in the other extension.
-    {
-      double t0 = this.fieldInOtherExtensionScope;
-      checkOtherExtensionValue(t0);
-      double t1 = this.getterInOtherExtensionScope;
-      checkOtherExtensionValue(t1);
-      this.setterInOtherExtensionScope = otherExtensionValue;
-      double t2 = this.methodInOtherExtensionScope();
-      checkOtherExtensionValue(t2);
-    }
-  }
-
-  void testIdentifiersOnInstance() {
-    A self = this;
-
-    // Prefixed globals are ambiguous
-    {
-      // Error cases tested in static_extension_internal_resolution_3_error_test.dart
-    }
-
-    // Instance members resolve to the instance methods and not the members
-    // of the extension
-    {
-      String t0 = self.fieldInInstanceScope;
-      checkInstanceValue(t0);
-      String t1 = self.getterInInstanceScope;
-      checkInstanceValue(t0);
-      self.setterInInstanceScope = instanceValue;
-      String t2 = self.methodInInstanceScope();
-      checkInstanceValue(t0);
-    }
-
-    // Extension members resolve to the extension methods on this extension
-    {
-      bool t0 = self.fieldInExtensionScope;
-      checkExtensionValue(t0);
-      bool t1 = self.getterInExtensionScope;
-      checkExtensionValue(t1);
-      self.setterInExtensionScope = extensionValue;
-      bool t2 = self.methodInExtensionScope();
-      checkExtensionValue(t2);
-    }
-
-    // Extension members not on this extension resolve to the extension methods
-    // in the other extension.
-    {
-      double t0 = self.fieldInOtherExtensionScope;
-      checkOtherExtensionValue(t0);
-      double t1 = self.getterInOtherExtensionScope;
-      checkOtherExtensionValue(t1);
-      self.setterInOtherExtensionScope = otherExtensionValue;
-      double t2 = self.methodInOtherExtensionScope();
-      checkOtherExtensionValue(t2);
-    }
-  }
-
-  void instanceTest() {
-    MyExt(this).testNakedIdentifiers();
-    MyExt(this).testIdentifiersOnThis();
-    MyExt(this).testIdentifiersOnInstance();
-  }
-}
-
-class B extends A {
-  void testNakedIdentifiers() {
-    // Globals should resolve to the global name space, and not to the members
-    // of either extension
-    {
-      int t0 = fieldInGlobalScope;
-      checkGlobalValue(t0);
-      int t1 = getterInGlobalScope;
-      checkGlobalValue(t1);
-      setterInGlobalScope = globalValue;
-      int t2 = methodInGlobalScope();
-      checkGlobalValue(t2);
-    }
-
-    // Instance members resolve to the instance methods and not the members
-    // of the other extension (when present)
-    {
-      String t0 = fieldInInstanceScope;
-      checkInstanceValue(t0);
-      String t1 = getterInInstanceScope;
-      checkInstanceValue(t0);
-      setterInInstanceScope = instanceValue;
-      String t2 = methodInInstanceScope();
-      checkInstanceValue(t0);
-    }
-
-    // Extension members defined internally resolve correctly.
-    {
-      bool t0 = fieldInExtensionScope;
-      checkExtensionValue(t0);
-      bool t1 = getterInExtensionScope;
-      checkExtensionValue(t1);
-      setterInExtensionScope = extensionValue;
-      bool t2 = methodInExtensionScope();
-      checkExtensionValue(t2);
-    }
-
-    // Extension members defined elsewhere resolve correctly
-    // (an unresolved identifier "id" gets turned into "this.id",
-    // which is then subject to extension method lookup).
-    {
-      double t0 = fieldInOtherExtensionScope;
-      checkOtherExtensionValue(t0);
-      double t1 = getterInOtherExtensionScope;
-      checkOtherExtensionValue(t1);
-      setterInOtherExtensionScope = otherExtensionValue;
-      double t2 = methodInOtherExtensionScope();
-      checkOtherExtensionValue(t2);
-    }
-  }
-}
-
-void main() {
-  var a = new A();
-  a.instanceTest();
-  new B().testNakedIdentifiers();
-
-  // Check external resolution as well while we're here
-
-  // Global names come from both extensions and hence are ambiguous.
-  {
-    // Error cases tested in static_extension_internal_resolution_3_error_test.dart
-  }
-
-  // Instance members resolve to the instance methods and not the members
-  // of the other extension (when present)
-  {
-    String t0 = a.fieldInInstanceScope;
-    checkInstanceValue(t0);
-    String t1 = a.getterInInstanceScope;
-    checkInstanceValue(t1);
-    a.setterInInstanceScope = instanceValue;
-    String t2 = a.methodInInstanceScope();
-    checkInstanceValue(t2);
-  }
-
-  // Extension members resolve to the extension methods in this
-  // extension.
-  {
-    bool t0 = a.fieldInExtensionScope;
-    checkExtensionValue(t0);
-    bool t1 = a.getterInExtensionScope;
-    checkExtensionValue(t1);
-    a.setterInExtensionScope = extensionValue;
-    bool t2 = a.methodInExtensionScope();
-    checkExtensionValue(t2);
-  }
-
-  // Extension members resolve to the extension methods in the other
-  // extension.
-  {
-    double t0 = a.fieldInOtherExtensionScope;
-    checkOtherExtensionValue(t0);
-    double t1 = a.getterInOtherExtensionScope;
-    checkOtherExtensionValue(t1);
-    a.setterInOtherExtensionScope = otherExtensionValue;
-    double t2 = a.methodInOtherExtensionScope();
-    checkOtherExtensionValue(t2);
-  }
-}
diff --git a/tests/language_2/extension_methods/static_extension_internal_resolution_4_error_test.dart b/tests/language_2/extension_methods/static_extension_internal_resolution_4_error_test.dart
deleted file mode 100644
index 5acc4855f0b..00000000000
--- a/tests/language_2/extension_methods/static_extension_internal_resolution_4_error_test.dart
+++ /dev/null
@@ -1,338 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests resolution of identifiers inside of extension methods
-
-// Test the error cases for an extension MyExt with member names
-// overlapping the global and instance scopes against:
-//   - a class A with only its own members
-//   - an extension ExtraExt which has members overlapping the global names,
-//     the instance names from A, and the extension names from MyExt, as well as
-//     its own names.
-
-import "package:expect/expect.dart";
-
-/////////////////////////////////////////////////////////////////////////
-// Note: These imports may be deliberately unused.  They bring certain
-// names into scope, in order to test that certain resolution choices are
-// made even in the presence of other symbols.
-/////////////////////////////////////////////////////////////////////////
-
-// Do Not Delete.
-// Bring global members into scope.
-import "helpers/global_scope.dart";
-
-// Do Not Delete.
-// Bring a class A with instance members into scope.
-import "helpers/class_no_shadow.dart";
-
-// Do Not Delete.
-// Bring an extension ExtraExt with symbols that overlap the global, instance,
-// and extension names into scope.
-import "helpers/extension_all.dart";
-
-const bool extensionValue = true;
-
-void checkExtensionValue(bool x) {
-  Expect.equals(x, extensionValue);
-}
-
-// An extension which defines its own members
-extension MyExt on A {
-  bool get fieldInGlobalScope => extensionValue;
-  bool get getterInGlobalScope => extensionValue;
-  set setterInGlobalScope(bool x) {
-    checkExtensionValue(x);
-  }
-
-  bool methodInGlobalScope() => extensionValue;
-
-  bool get fieldInInstanceScope => extensionValue;
-  bool get getterInInstanceScope => extensionValue;
-  set setterInInstanceScope(bool x) {
-    checkExtensionValue(x);
-  }
-
-  bool methodInInstanceScope() => extensionValue;
-
-  bool get fieldInExtensionScope => extensionValue;
-  bool get getterInExtensionScope => extensionValue;
-  set setterInExtensionScope(bool x) {
-    checkExtensionValue(x);
-  }
-
-  bool methodInExtensionScope() => extensionValue;
-
-  void testNakedIdentifiers() {
-    // Globals should resolve to local extension versions
-    {
-      // No errors: see static_extension_internal_resolution_4_test.dart
-    }
-
-    // Un-prefixed instance members resolve to the local extension versions
-    {
-      // No errors: see static_extension_internal_resolution_4_test.dart
-    }
-
-    // Extension members resolve to the extension methods in this extension
-    {
-      // No errors: see static_extension_internal_resolution_4_test.dart
-    }
-
-    // Extension members not on this extension resolve to the extension methods
-    // in the other extension (unresolved identifier "id" gets turned into
-    // "this.id", which is then subject to extension method lookup).
-    {
-      // No errors: see static_extension_internal_resolution_4_test.dart
-    }
-  }
-
-  void testIdentifiersOnThis() {
-    // Prefixed globals are ambiguous
-    {
-      bool t0 = this.fieldInGlobalScope;
-      //             ^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The property 'fieldInGlobalScope' is defined in multiple extensions for 'A' and neither is more specific.
-      checkExtensionValue(t0);
-      bool t1 = this.getterInGlobalScope;
-      //             ^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The property 'getterInGlobalScope' is defined in multiple extensions for 'A' and neither is more specific.
-      checkExtensionValue(t1);
-      this.setterInGlobalScope = extensionValue;
-      //   ^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The property 'setterInGlobalScope' is defined in multiple extensions for 'A' and neither is more specific.
-      bool t2 = this.methodInGlobalScope();
-      //             ^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The method 'methodInGlobalScope' is defined in multiple extensions for 'A' and neither is more specific.
-      checkExtensionValue(t2);
-    }
-
-    // Instance members resolve to the instance methods and not the members
-    // of either extension
-    {
-      // No errors: see static_extension_internal_resolution_4_test.dart
-    }
-
-    // Extension members are ambiguous.
-    {
-      bool t0 = this.fieldInExtensionScope;
-      //             ^^^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The property 'fieldInExtensionScope' is defined in multiple extensions for 'A' and neither is more specific.
-      checkExtensionValue(t0);
-      bool t1 = this.getterInExtensionScope;
-      //             ^^^^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The property 'getterInExtensionScope' is defined in multiple extensions for 'A' and neither is more specific.
-      checkExtensionValue(t1);
-      this.setterInExtensionScope = extensionValue;
-      //   ^^^^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The property 'setterInExtensionScope' is defined in multiple extensions for 'A' and neither is more specific.
-      bool t2 = this.methodInExtensionScope();
-      //             ^^^^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The method 'methodInExtensionScope' is defined in multiple extensions for 'A' and neither is more specific.
-      checkExtensionValue(t2);
-    }
-
-    // Extension members not on this extension resolve to the extension methods
-    // in the other extension.
-    {
-      // No errors: see static_extension_internal_resolution_4_test.dart
-    }
-  }
-
-  void testIdentifiersOnInstance() {
-    A self = this;
-
-    // Prefixed globals are ambiguous
-    {
-      bool t0 = self.fieldInGlobalScope;
-      //             ^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The property 'fieldInGlobalScope' is defined in multiple extensions for 'A' and neither is more specific.
-      checkExtensionValue(t0);
-      bool t1 = self.getterInGlobalScope;
-      //             ^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The property 'getterInGlobalScope' is defined in multiple extensions for 'A' and neither is more specific.
-      checkExtensionValue(t1);
-      self.setterInGlobalScope = extensionValue;
-      //   ^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The property 'setterInGlobalScope' is defined in multiple extensions for 'A' and neither is more specific.
-      bool t2 = self.methodInGlobalScope();
-      //             ^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The method 'methodInGlobalScope' is defined in multiple extensions for 'A' and neither is more specific.
-      checkExtensionValue(t2);
-    }
-
-    // Instance members resolve to the instance methods and not the members
-    // of the extension
-    {
-      // No errors: see static_extension_internal_resolution_4_test.dart
-    }
-
-    // Extension members are ambiguous.
-    {
-      bool t0 = self.fieldInExtensionScope;
-      //             ^^^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The property 'fieldInExtensionScope' is defined in multiple extensions for 'A' and neither is more specific.
-      checkExtensionValue(t0);
-      bool t1 = self.getterInExtensionScope;
-      //             ^^^^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The property 'getterInExtensionScope' is defined in multiple extensions for 'A' and neither is more specific.
-      checkExtensionValue(t1);
-      self.setterInExtensionScope = extensionValue;
-      //   ^^^^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The property 'setterInExtensionScope' is defined in multiple extensions for 'A' and neither is more specific.
-      bool t2 = self.methodInExtensionScope();
-      //             ^^^^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The method 'methodInExtensionScope' is defined in multiple extensions for 'A' and neither is more specific.
-      checkExtensionValue(t2);
-    }
-
-    // Extension members not on this extension resolve to the extension methods
-    // in the other extension.
-    {
-      // No errors: see static_extension_internal_resolution_4_test.dart
-    }
-  }
-
-  void instanceTest() {
-    MyExt(this).testNakedIdentifiers();
-    MyExt(this).testIdentifiersOnThis();
-    MyExt(this).testIdentifiersOnInstance();
-  }
-}
-
-class B extends A {
-  void testNakedIdentifiers() {
-    // Globals should resolve to the global name space, and not to the members
-    // of either extension
-    {
-      // No errors: see static_extension_internal_resolution_4_test.dart
-    }
-
-    // Instance members resolve to the instance methods and not the members
-    // of the other extension (when present)
-    {
-      // No errors: see static_extension_internal_resolution_4_test.dart
-    }
-
-    // Extension members are ambiguous
-    {
-      bool t0 = fieldInExtensionScope;
-      //        ^^^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The property 'fieldInExtensionScope' is defined in multiple extensions for 'B' and neither is more specific.
-      //        ^^^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-      checkExtensionValue(t0);
-      bool t1 = getterInExtensionScope;
-      //        ^^^^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The property 'getterInExtensionScope' is defined in multiple extensions for 'B' and neither is more specific.
-      //        ^^^^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-      checkExtensionValue(t1);
-      setterInExtensionScope = extensionValue;
-//    ^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-// [cfe] The property 'setterInExtensionScope' is defined in multiple extensions for 'B' and neither is more specific.
-//    ^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-      bool t2 = methodInExtensionScope();
-      //        ^^^^^^^^^^^^^^^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-      // [cfe] The method 'methodInExtensionScope' is defined in multiple extensions for 'B' and neither is more specific.
-      checkExtensionValue(t2);
-    }
-
-    // Extension members resolve to the extension methods in the other
-    // extension (unresolved identifier "id" gets turned into "this.id",
-    // which is then subject to extension method lookup).
-    {
-      // No errors: see static_extension_internal_resolution_4_test.dart
-    }
-  }
-}
-
-void main() {
-  var a = new A();
-  a.instanceTest();
-  new B().testNakedIdentifiers();
-
-  // Check external resolution as well while we're here
-
-  // Global names come from both extensions and hence are ambiguous.
-  {
-    bool t0 = a.fieldInGlobalScope;
-    //          ^^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-    // [cfe] The property 'fieldInGlobalScope' is defined in multiple extensions for 'A' and neither is more specific.
-    checkExtensionValue(t0);
-    bool t1 = a.getterInGlobalScope;
-    //          ^^^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-    // [cfe] The property 'getterInGlobalScope' is defined in multiple extensions for 'A' and neither is more specific.
-    checkExtensionValue(t1);
-    a.setterInGlobalScope = extensionValue;
-    //^^^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-    // [cfe] The property 'setterInGlobalScope' is defined in multiple extensions for 'A' and neither is more specific.
-    bool t2 = a.methodInGlobalScope();
-    //          ^^^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-    // [cfe] The method 'methodInGlobalScope' is defined in multiple extensions for 'A' and neither is more specific.
-    checkExtensionValue(t2);
-  }
-
-  // Instance members resolve to the instance methods and not the members
-  // of the other extension (when present)
-  {
-    // No errors: see static_extension_internal_resolution_4_test.dart
-  }
-
-  // Extension members are ambiguous
-  {
-    bool t0 = a.fieldInExtensionScope;
-    //          ^^^^^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-    // [cfe] The property 'fieldInExtensionScope' is defined in multiple extensions for 'A' and neither is more specific.
-    checkExtensionValue(t0);
-    bool t1 = a.getterInExtensionScope;
-    //          ^^^^^^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-    // [cfe] The property 'getterInExtensionScope' is defined in multiple extensions for 'A' and neither is more specific.
-    checkExtensionValue(t1);
-    a.setterInExtensionScope = extensionValue;
-    //^^^^^^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-    // [cfe] The property 'setterInExtensionScope' is defined in multiple extensions for 'A' and neither is more specific.
-    bool t2 = a.methodInExtensionScope();
-    //          ^^^^^^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-    // [cfe] The method 'methodInExtensionScope' is defined in multiple extensions for 'A' and neither is more specific.
-    checkExtensionValue(t2);
-  }
-
-  // Extension members resolve to the extension methods in the other
-  // extension.
-  {
-    // No errors: see static_extension_internal_resolution_4_test.dart
-  }
-}
diff --git a/tests/language_2/extension_methods/static_extension_internal_resolution_4_test.dart b/tests/language_2/extension_methods/static_extension_internal_resolution_4_test.dart
deleted file mode 100644
index 430b6f53474..00000000000
--- a/tests/language_2/extension_methods/static_extension_internal_resolution_4_test.dart
+++ /dev/null
@@ -1,284 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests resolution of identifiers inside of extension methods
-
-// Test the non error cases for an extension MyExt with member names
-// overlapping the global and instance scopes against:
-//   - a class A with only its own members
-//   - an extension ExtraExt which has members overlapping the global names,
-//     the instance names from A, and the extension names from MyExt, as well as
-//     its own names.
-
-import "package:expect/expect.dart";
-
-/////////////////////////////////////////////////////////////////////////
-// Note: These imports may be deliberately unused.  They bring certain
-// names into scope, in order to test that certain resolution choices are
-// made even in the presence of other symbols.
-/////////////////////////////////////////////////////////////////////////
-
-// Do Not Delete.
-// Bring global members into scope.
-import "helpers/global_scope.dart";
-
-// Do Not Delete.
-// Bring a class A with instance members into scope.
-import "helpers/class_no_shadow.dart";
-
-// Do Not Delete.
-// Bring an extension ExtraExt with symbols that overlap the global, instance,
-// and extension names into scope.
-import "helpers/extension_all.dart";
-
-const bool extensionValue = true;
-
-void checkExtensionValue(bool x) {
-  Expect.equals(x, extensionValue);
-}
-
-// An extension which defines its own members
-extension MyExt on A {
-  bool get fieldInGlobalScope => extensionValue;
-  bool get getterInGlobalScope => extensionValue;
-  set setterInGlobalScope(bool x) {
-    checkExtensionValue(x);
-  }
-
-  bool methodInGlobalScope() => extensionValue;
-
-  bool get fieldInInstanceScope => extensionValue;
-  bool get getterInInstanceScope => extensionValue;
-  set setterInInstanceScope(bool x) {
-    checkExtensionValue(x);
-  }
-
-  bool methodInInstanceScope() => extensionValue;
-
-  bool get fieldInExtensionScope => extensionValue;
-  bool get getterInExtensionScope => extensionValue;
-  set setterInExtensionScope(bool x) {
-    checkExtensionValue(x);
-  }
-
-  bool methodInExtensionScope() => extensionValue;
-
-  void testNakedIdentifiers() {
-    // Globals should resolve to local extension versions
-    {
-      bool t0 = fieldInGlobalScope;
-      checkExtensionValue(t0);
-      bool t1 = getterInGlobalScope;
-      checkExtensionValue(t1);
-      setterInGlobalScope = extensionValue;
-      bool t2 = methodInGlobalScope();
-      checkExtensionValue(t2);
-    }
-
-    // Un-prefixed instance members resolve to the local extension versions
-    {
-      bool t0 = fieldInInstanceScope;
-      checkExtensionValue(t0);
-      bool t1 = getterInInstanceScope;
-      checkExtensionValue(t0);
-      setterInInstanceScope = extensionValue;
-      bool t2 = methodInInstanceScope();
-      checkExtensionValue(t0);
-    }
-
-    // Extension members resolve to the extension methods in this extension
-    {
-      bool t0 = fieldInExtensionScope;
-      checkExtensionValue(t0);
-      bool t1 = getterInExtensionScope;
-      checkExtensionValue(t1);
-      setterInExtensionScope = extensionValue;
-      bool t2 = methodInExtensionScope();
-      checkExtensionValue(t2);
-    }
-
-    // Extension members not on this extension resolve to the extension methods
-    // in the other extension (unresolved identifier "id" gets turned into
-    // "this.id", which is then subject to extension method lookup).
-    {
-      double t0 = fieldInOtherExtensionScope;
-      checkOtherExtensionValue(t0);
-      double t1 = getterInOtherExtensionScope;
-      checkOtherExtensionValue(t1);
-      setterInOtherExtensionScope = otherExtensionValue;
-      double t2 = methodInOtherExtensionScope();
-      checkOtherExtensionValue(t2);
-    }
-  }
-
-  void testIdentifiersOnThis() {
-    // Prefixed globals are ambiguous
-    {
-      // Error cases tested in static_extension_internal_resolution_4_error_test.dart
-    }
-
-    // Instance members resolve to the instance methods and not the members
-    // of either extension
-    {
-      String t0 = this.fieldInInstanceScope;
-      checkInstanceValue(t0);
-      String t1 = this.getterInInstanceScope;
-      checkInstanceValue(t0);
-      this.setterInInstanceScope = instanceValue;
-      String t2 = this.methodInInstanceScope();
-      checkInstanceValue(t0);
-    }
-
-    // Extension members are ambiguous.
-    {
-      // Error cases tested in static_extension_internal_resolution_4_error_test.dart
-    }
-
-    // Extension members not on this extension resolve to the extension methods
-    // in the other extension.
-    {
-      double t0 = this.fieldInOtherExtensionScope;
-      checkOtherExtensionValue(t0);
-      double t1 = this.getterInOtherExtensionScope;
-      checkOtherExtensionValue(t1);
-      this.setterInOtherExtensionScope = otherExtensionValue;
-      double t2 = this.methodInOtherExtensionScope();
-      checkOtherExtensionValue(t2);
-    }
-  }
-
-  void testIdentifiersOnInstance() {
-    A self = this;
-
-    // Prefixed globals are ambiguous
-    {
-      // Error cases tested in static_extension_internal_resolution_4_error_test.dart
-    }
-
-    // Instance members resolve to the instance methods and not the members
-    // of the extension
-    {
-      String t0 = self.fieldInInstanceScope;
-      checkInstanceValue(t0);
-      String t1 = self.getterInInstanceScope;
-      checkInstanceValue(t0);
-      self.setterInInstanceScope = instanceValue;
-      String t2 = self.methodInInstanceScope();
-      checkInstanceValue(t0);
-    }
-
-    // Extension members are ambiguous.
-    {
-      // Error cases tested in static_extension_internal_resolution_4_error_test.dart
-    }
-
-    // Extension members not on this extension resolve to the extension methods
-    // in the other extension.
-    {
-      double t0 = self.fieldInOtherExtensionScope;
-      checkOtherExtensionValue(t0);
-      double t1 = self.getterInOtherExtensionScope;
-      checkOtherExtensionValue(t1);
-      self.setterInOtherExtensionScope = otherExtensionValue;
-      double t2 = self.methodInOtherExtensionScope();
-      checkOtherExtensionValue(t2);
-    }
-  }
-
-  void instanceTest() {
-    MyExt(this).testNakedIdentifiers();
-    MyExt(this).testIdentifiersOnThis();
-    MyExt(this).testIdentifiersOnInstance();
-  }
-}
-
-class B extends A {
-  void testNakedIdentifiers() {
-    // Globals should resolve to the global name space, and not to the members
-    // of either extension
-    {
-      int t0 = fieldInGlobalScope;
-      checkGlobalValue(t0);
-      int t1 = getterInGlobalScope;
-      checkGlobalValue(t1);
-      setterInGlobalScope = globalValue;
-      int t2 = methodInGlobalScope();
-      checkGlobalValue(t2);
-    }
-
-    // Instance members resolve to the instance methods and not the members
-    // of the other extension (when present)
-    {
-      String t0 = fieldInInstanceScope;
-      checkInstanceValue(t0);
-      String t1 = getterInInstanceScope;
-      checkInstanceValue(t0);
-      setterInInstanceScope = instanceValue;
-      String t2 = methodInInstanceScope();
-      checkInstanceValue(t0);
-    }
-
-    // Extension members are ambiguous.
-    {
-      // Error cases tested in static_extension_internal_resolution_4_error_test.dart
-    }
-
-    // Extension members resolve to the extension methods in the other
-    // extension (unresolved identifier "id" gets turned into "this.id",
-    // which is then subject to extension method lookup).
-    {
-      double t0 = fieldInOtherExtensionScope;
-      checkOtherExtensionValue(t0);
-      double t1 = getterInOtherExtensionScope;
-      checkOtherExtensionValue(t1);
-      setterInOtherExtensionScope = otherExtensionValue;
-      double t2 = methodInOtherExtensionScope();
-      checkOtherExtensionValue(t2);
-    }
-  }
-}
-
-void main() {
-  var a = new A();
-  a.instanceTest();
-  new B().testNakedIdentifiers();
-
-  // Check external resolution as well while we're here
-
-  // Global names come from both extensions and hence are ambiguous.
-  {
-    // Error cases tested in static_extension_internal_resolution_4_error_test.dart
-  }
-
-  // Instance members resolve to the instance methods and not the members
-  // of the other extension (when present)
-  {
-    String t0 = a.fieldInInstanceScope;
-    checkInstanceValue(t0);
-    String t1 = a.getterInInstanceScope;
-    checkInstanceValue(t1);
-    a.setterInInstanceScope = instanceValue;
-    String t2 = a.methodInInstanceScope();
-    checkInstanceValue(t2);
-  }
-
-  // Extension members are ambiguous.
-  {
-    // Error cases tested in static_extension_internal_resolution_4_error_test.dart
-  }
-
-  // Extension members resolve to the extension methods in the other
-  // extension.
-  {
-    double t0 = a.fieldInOtherExtensionScope;
-    checkOtherExtensionValue(t0);
-    double t1 = a.getterInOtherExtensionScope;
-    checkOtherExtensionValue(t1);
-    a.setterInOtherExtensionScope = otherExtensionValue;
-    double t2 = a.methodInOtherExtensionScope();
-    checkOtherExtensionValue(t2);
-  }
-}
diff --git a/tests/language_2/extension_methods/static_extension_internal_resolution_5_test.dart b/tests/language_2/extension_methods/static_extension_internal_resolution_5_test.dart
deleted file mode 100644
index db258495d0b..00000000000
--- a/tests/language_2/extension_methods/static_extension_internal_resolution_5_test.dart
+++ /dev/null
@@ -1,163 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests resolution of identifiers inside of extension methods
-
-// Test the non error cases for an extension MyExt with member names
-// overlapping the instance scopes against:
-//   - a class AGlobal which overlaps the names from the global scope as well
-//     as providing its own members
-
-import "package:expect/expect.dart";
-
-/////////////////////////////////////////////////////////////////////////
-// Note: These imports may be deliberately unused.  They bring certain
-// names into scope, in order to test that certain resolution choices are
-// made even in the presence of other symbols.
-/////////////////////////////////////////////////////////////////////////
-
-// Do Not Delete.
-// Bring global members into scope.
-import "helpers/global_scope.dart";
-
-// Do Not Delete.
-// Bring a class AGlobal with instance members and global members into scope.
-import "helpers/class_shadow.dart";
-import "helpers/class_no_shadow.dart";
-
-const bool extensionValue = true;
-
-void checkExtensionValue(bool x) {
-  Expect.equals(x, extensionValue);
-}
-
-// Put the extension members in the global scope
-int fieldInExtensionScope = globalValue;
-int get getterInExtensionScope => globalValue;
-set setterInExtensionScope(int x) {
-  checkGlobalValue(x);
-}
-
-int methodInExtensionScope() => globalValue;
-
-// Put the superclass members in the global scope
-int fieldInInstanceScope = globalValue;
-int get getterInInstanceScope => globalValue;
-set setterInInstanceScope(int x) {
-  checkGlobalValue(x);
-}
-
-int methodInInstanceScope() => globalValue;
-
-// An extension which defines only its own members
-extension MyExt on AGlobal {
-  bool get fieldInExtensionScope => extensionValue;
-  bool get getterInExtensionScope => extensionValue;
-  set setterInExtensionScope(bool x) {
-    checkExtensionValue(x);
-  }
-
-  bool methodInExtensionScope() => extensionValue;
-
-  bool get fieldInInstanceScope => extensionValue;
-  bool get getterInInstanceScope => extensionValue;
-  set setterInInstanceScope(bool x) {
-    checkExtensionValue(x);
-  }
-
-  bool methodInInstanceScope() => extensionValue;
-
-  void testNakedIdentifiers() {
-    // Members that are in the global namespace and the instance namespace
-    // resolve to the global namespace.
-    {
-      int t0 = fieldInGlobalScope;
-      checkGlobalValue(t0);
-      int t1 = getterInGlobalScope;
-      checkGlobalValue(t1);
-      setterInGlobalScope = globalValue;
-      int t2 = methodInGlobalScope();
-      checkGlobalValue(t2);
-    }
-
-    // Members that are in the global namespace and the local namespace resolve
-    // to the local namespace.
-    {
-      bool t0 = fieldInExtensionScope;
-      checkExtensionValue(t0);
-      bool t1 = getterInExtensionScope;
-      checkExtensionValue(t1);
-      setterInExtensionScope = extensionValue;
-      bool t2 = methodInExtensionScope();
-      checkExtensionValue(t2);
-    }
-
-    // Members that are in the global namespace and the instance and the local
-    // namespace resolve to the local namespace.
-    {
-      bool t0 = fieldInInstanceScope;
-      checkExtensionValue(t0);
-      bool t1 = getterInInstanceScope;
-      checkExtensionValue(t1);
-      setterInInstanceScope = extensionValue;
-      bool t2 = methodInInstanceScope();
-      checkExtensionValue(t2);
-    }
-  }
-
-  void instanceTest() {
-    MyExt(this).testNakedIdentifiers();
-  }
-}
-
-class B extends AGlobal {
-  void testNakedIdentifiers() {
-    // Members that are in the global namespace and the superclass namespace
-    // should resolve to the global name space, and not to the members of the
-    // superclass.
-    {
-      int t0 = fieldInGlobalScope;
-      checkGlobalValue(t0);
-      int t1 = getterInGlobalScope;
-      checkGlobalValue(t1);
-      setterInGlobalScope = globalValue;
-      int t2 = methodInGlobalScope();
-      checkGlobalValue(t2);
-    }
-
-    // Members that are in the global namespace and the extension namespace
-    // should resolve to the global name space, and not to the members of the
-    // extension.
-    {
-      int t0 = fieldInExtensionScope;
-      checkGlobalValue(t0);
-      int t1 = getterInExtensionScope;
-      checkGlobalValue(t1);
-      setterInExtensionScope = globalValue;
-      int t2 = methodInExtensionScope();
-      checkGlobalValue(t2);
-    }
-
-    // Members that are in the global namespace, and the superclass namespace,
-    // and the extension namespace, should resolve to the global name space, and
-    // not to the members of the extension nor the members of the superclass.
-    {
-      int t0 = fieldInInstanceScope;
-      checkGlobalValue(t0);
-      int t1 = getterInInstanceScope;
-      checkGlobalValue(t1);
-      setterInInstanceScope = globalValue;
-      int t2 = methodInInstanceScope();
-      checkGlobalValue(t2);
-    }
-  }
-}
-
-void main() {
-  var a = new AGlobal();
-  a.instanceTest();
-  new B().testNakedIdentifiers();
-}
diff --git a/tests/language_2/extension_methods/static_extension_internal_resolution_6_error_test.dart b/tests/language_2/extension_methods/static_extension_internal_resolution_6_error_test.dart
deleted file mode 100644
index 0acc1d0e9a4..00000000000
--- a/tests/language_2/extension_methods/static_extension_internal_resolution_6_error_test.dart
+++ /dev/null
@@ -1,124 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests resolution of identifiers inside of extension methods
-
-// Test various static error corner cases around internal resolution.
-
-import "package:expect/expect.dart";
-
-/////////////////////////////////////////////////////////////////////////
-// Note: These imports may be deliberately unused.  They bring certain
-// names into scope, in order to test that certain resolution choices are
-// made even in the presence of other symbols.
-/////////////////////////////////////////////////////////////////////////
-
-// Do Not Delete.
-// Bring global members into scope.
-import "helpers/global_scope.dart";
-
-// Do Not Delete.
-// Bring a class AGlobal with instance members and global members into scope.
-import "helpers/class_shadow.dart";
-
-extension GenericExtension<T> on T {
-  T get self => this;
-  // Check that capture is avoided when expanding out
-  // self references.
-  void shadowTypeParam<T>(T x) {
-    T y = self;
-    //    ^^^^
-    // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-    // [cfe] A value of type '#T' can't be assigned to a variable of type 'T'.
-  }
-
-  void castToShadowedTypeParam<T>() {
-    dynamic s = self;
-    (s as T);
-  }
-
-  List<T> mkList() => <T>[];
-  void castToShadowedTypeList<T>() {
-    (mkList() as List<T>);
-  }
-}
-
-const bool extensionValue = true;
-
-void checkExtensionValue(bool x) {
-  Expect.equals(x, extensionValue);
-}
-
-extension StaticExt on AGlobal {
-  // Valid to overlap static names with the target type symbols
-  static bool get fieldInInstanceScope => extensionValue;
-  //              ^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
-  static bool get getterInInstanceScope => extensionValue;
-  //              ^^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
-  static set setterInInstanceScope(bool x) {
-    //       ^^^^^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
-    checkExtensionValue(x);
-  }
-
-  static bool methodInInstanceScope() => extensionValue;
-  //          ^^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTENSION_CONFLICTING_STATIC_AND_INSTANCE
-
-  // Add the global symbols
-  static bool get fieldInGlobalScope => extensionValue;
-  static bool get getterInGlobalScope => extensionValue;
-  static set setterInGlobalScope(bool x) {
-    checkExtensionValue(x);
-  }
-
-  static bool methodInGlobalScope() => extensionValue;
-
-  // Invalid to overlap the static and extension scopes
-  bool get fieldInInstanceScope => extensionValue;
-  //       ^
-  // [cfe] 'fieldInInstanceScope' is already declared in this scope.
-  bool get getterInInstanceScope => extensionValue;
-  //       ^
-  // [cfe] 'getterInInstanceScope' is already declared in this scope.
-  set setterInInstanceScope(bool x) {
-    //^
-    // [cfe] 'setterInInstanceScope' is already declared in this scope.
-    checkExtensionValue(x);
-  }
-
-  bool methodInInstanceScope() => extensionValue;
-  //   ^
-  // [cfe] 'methodInInstanceScope' is already declared in this scope.
-
-  void testNakedIdentifiers() {
-    // Symbols in the global scope and the local static scope resolve to
-    // the local static scope.
-    {
-      // No errors: see static_extension_internal_resolution_6_test.dart
-    }
-
-    // Symbols in the global scope, the instance scope, and the local static scope
-    // resolve to the local static scope.
-    {
-      // No errors: see static_extension_internal_resolution_6_test.dart
-    }
-  }
-
-  void instanceTest() {
-    StaticExt(this).testNakedIdentifiers();
-  }
-}
-
-void main() {
-  var a = new AGlobal();
-  a.instanceTest();
-
-  Expect.throwsTypeError(() => 3.castToShadowedTypeParam<String>());
-  Expect.throwsTypeError(() => 3.castToShadowedTypeList<String>());
-}
diff --git a/tests/language_2/extension_methods/static_extension_internal_resolution_6_test.dart b/tests/language_2/extension_methods/static_extension_internal_resolution_6_test.dart
deleted file mode 100644
index 60ec5566cf2..00000000000
--- a/tests/language_2/extension_methods/static_extension_internal_resolution_6_test.dart
+++ /dev/null
@@ -1,101 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests resolution of identifiers inside of extension methods
-
-// Test various non-error corner cases around internal resolution.
-
-import "package:expect/expect.dart";
-
-/////////////////////////////////////////////////////////////////////////
-// Note: These imports may be deliberately unused.  They bring certain
-// names into scope, in order to test that certain resolution choices are
-// made even in the presence of other symbols.
-/////////////////////////////////////////////////////////////////////////
-
-// Do Not Delete.
-// Bring global members into scope.
-import "helpers/global_scope.dart";
-
-// Do Not Delete.
-// Bring a class AGlobal with instance members and global members into scope.
-import "helpers/class_shadow.dart";
-
-extension GenericExtension<T> on T {
-  T get self => this;
-  void castToShadowedTypeParam<T>() {
-    dynamic s = self;
-    (s as T);
-  }
-
-  List<T> mkList() => <T>[];
-  void castToShadowedTypeList<T>() {
-    (mkList() as List<T>);
-  }
-}
-
-const bool extensionValue = true;
-
-void checkExtensionValue(bool x) {
-  Expect.equals(x, extensionValue);
-}
-
-extension StaticExt on AGlobal {
-  // Valid to overlap static names with the target type symbols
-  static bool get fieldInInstanceScope => extensionValue;
-  static bool get getterInInstanceScope => extensionValue;
-  static set setterInInstanceScope(bool x) {
-    checkExtensionValue(x);
-  }
-
-  static bool methodInInstanceScope() => extensionValue;
-
-  // Add the global symbols
-  static bool get fieldInGlobalScope => extensionValue;
-  static bool get getterInGlobalScope => extensionValue;
-  static set setterInGlobalScope(bool x) {
-    checkExtensionValue(x);
-  }
-
-  static bool methodInGlobalScope() => extensionValue;
-
-  void testNakedIdentifiers() {
-    // Symbols in the global scope and the local static scope resolve to
-    // the local static scope.
-    {
-      bool t0 = fieldInGlobalScope;
-      checkExtensionValue(t0);
-      bool t1 = getterInGlobalScope;
-      checkExtensionValue(t1);
-      setterInGlobalScope = extensionValue;
-      bool t2 = methodInGlobalScope();
-      checkExtensionValue(t2);
-    }
-
-    // Symbols in the global scope, the instance scope, and the local static scope
-    // resolve to the local static scope.
-    {
-      bool t0 = fieldInInstanceScope;
-      checkExtensionValue(t0);
-      bool t1 = getterInInstanceScope;
-      checkExtensionValue(t1);
-      setterInInstanceScope = extensionValue;
-      bool t2 = methodInInstanceScope();
-      checkExtensionValue(t2);
-    }
-  }
-
-  void instanceTest() {
-    StaticExt(this).testNakedIdentifiers();
-  }
-}
-
-void main() {
-  var a = new AGlobal();
-  a.instanceTest();
-
-  Expect.throwsTypeError(() => 3.castToShadowedTypeParam<String>());
-}
diff --git a/tests/language_2/extension_methods/static_extension_operator_override_error_test.dart b/tests/language_2/extension_methods/static_extension_operator_override_error_test.dart
deleted file mode 100644
index ccf436fc341..00000000000
--- a/tests/language_2/extension_methods/static_extension_operator_override_error_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Regression test for https://github.com/dart-lang/sdk/issues/43114.
-
-class A {}
-
-extension E on A {
-  String operator +(int other) => '';
-}
-
-f(A a, int b) {
-  int i = E(a) + b;
-  //      ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //           ^
-  // [cfe] A value of type 'String' can't be assigned to a variable of type 'int'.
-}
-
-main() {
-  f(A(), 0);
-}
diff --git a/tests/language_2/extension_methods/static_extension_operators_test.dart b/tests/language_2/extension_methods/static_extension_operators_test.dart
deleted file mode 100644
index 52f99e31515..00000000000
--- a/tests/language_2/extension_methods/static_extension_operators_test.dart
+++ /dev/null
@@ -1,130 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Tests that static extensions can be used for all operators.
-
-void main() {
-  Object a = "a";
-  Object b = "b";
-  Object c = "c";
-
-  expect("(-a)", -a);
-  expect("(~a)", ~a);
-  expect("(a+b)", a + b);
-  expect("(a-b)", a - b);
-  expect("(a*b)", a * b);
-  expect("(a/b)", a / b);
-  expect("(a%b)", a % b);
-  expect("(a~/b)", a ~/ b);
-  expect("(a|b)", a | b);
-  expect("(a&b)", a & b);
-  expect("(a^b)", a ^ b);
-  expect("(a<b)", a < b);
-  expect("(a>b)", a > b);
-  expect("(a<=b)", a <= b);
-  expect("(a>=b)", a >= b);
-  expect("(a<<b)", a << b);
-  expect("(a>>b)", a >> b);
-  // expect("(a>>>b)", a >>> b);
-  expect("a(b)", a(b));
-  expect("a(b,c)", a(b, c));
-  expect("a[b]", a[b]);
-  expect("c", a[b] = c, "a[b]=c");
-
-  // Operator-assignment works and evaluates to its RHS value.
-  expect("(a.field+b)", a.field += b, "a.field=(a.field+b)");
-  expect("(a.field-b)", a.field -= b, "a.field=(a.field-b)");
-  expect("(a.field*b)", a.field *= b, "a.field=(a.field*b)");
-  expect("(a.field/b)", a.field /= b, "a.field=(a.field/b)");
-  expect("(a.field%b)", a.field %= b, "a.field=(a.field%b)");
-  expect("(a.field~/b)", a.field ~/= b, "a.field=(a.field~/b)");
-  expect("(a.field|b)", a.field |= b, "a.field=(a.field|b)");
-  expect("(a.field&b)", a.field &= b, "a.field=(a.field&b)");
-  expect("(a.field^b)", a.field ^= b, "a.field=(a.field^b)");
-  expect("(a.field<<b)", a.field <<= b, "a.field=(a.field<<b)");
-  expect("(a.field>>b)", a.field >>= b, "a.field=(a.field>>b)");
-  // expect("(a.field>>>b)", a.field >>>= b, "a.field=(a.field>>>b)");
-
-  // Even on index operations.
-  expect("(a[c]+b)", a[c] += b, "a[c]=(a[c]+b)");
-  expect("(a[c]-b)", a[c] -= b, "a[c]=(a[c]-b)");
-  expect("(a[c]*b)", a[c] *= b, "a[c]=(a[c]*b)");
-  expect("(a[c]/b)", a[c] /= b, "a[c]=(a[c]/b)");
-  expect("(a[c]%b)", a[c] %= b, "a[c]=(a[c]%b)");
-  expect("(a[c]~/b)", a[c] ~/= b, "a[c]=(a[c]~/b)");
-  expect("(a[c]|b)", a[c] |= b, "a[c]=(a[c]|b)");
-  expect("(a[c]&b)", a[c] &= b, "a[c]=(a[c]&b)");
-  expect("(a[c]^b)", a[c] ^= b, "a[c]=(a[c]^b)");
-  expect("(a[c]<<b)", a[c] <<= b, "a[c]=(a[c]<<b)");
-  expect("(a[c]>>b)", a[c] >>= b, "a[c]=(a[c]>>b)");
-  // expect("(a[c]>>>b)", a[c] >>>= b, "a[c]=(a[c]>>>b)");
-
-  // And ++/-- expands to their assignments.
-  expect("(a.field+1)", ++a.field, "a.field=(a.field+1)");
-  expect("(a.field-1)", --a.field, "a.field=(a.field-1)");
-  expect("a.field", a.field++, "a.field=(a.field+1)");
-  expect("a.field", a.field--, "a.field=(a.field-1)");
-  expect("(a[b]+1)", ++a[b], "a[b]=(a[b]+1)");
-  expect("(a[b]-1)", --a[b], "a[b]=(a[b]-1)");
-  expect("a[b]", a[b]++, "a[b]=(a[b]+1)");
-  expect("a[b]", a[b]--, "a[b]=(a[b]-1)");
-
-  // Combinations.
-  expect("(a+b[b(c)]((a*b)))", a + b[c[a] = b(c)](a * b), "c[a]=b(c)");
-
-  // Operator precedence is unaffected by being extensions.
-  expect("(c<((-a)|(b^((~c)&((a<<b)>>((c-a)+((((b*c)~/a)%b)/c)))))))",
-      c < -a | b ^ ~c & a << b >> c - a + b * c ~/ a % b / c);
-  expect("((((((((((((c/b)%a)~/c)*b)+a)-c)<<b)>>a)&(~c))^b)|(-a))>b)",
-      c / b % a ~/ c * b + a - c << b >> a & ~c ^ b | -a > b);
-}
-
-// Last value set by []= or setter.
-String setValue = "";
-
-void expect(String expect, Object value, [String expectSet]) {
-  Expect.equals(expect, value, "value");
-  if (expectSet != null) Expect.equals(expectSet, setValue, "assignment");
-}
-
-extension Ops on Object {
-  Object operator -() => "(-${this})";
-  Object operator ~() => "(~${this})";
-  Object operator +(Object other) => "(${this}+$other)";
-  Object operator -(Object other) => "(${this}-$other)";
-  Object operator *(Object other) => "(${this}*$other)";
-  Object operator /(Object other) => "(${this}/$other)";
-  Object operator %(Object other) => "(${this}%$other)";
-  Object operator ~/(Object other) => "(${this}~/$other)";
-  Object operator |(Object other) => "(${this}|$other)";
-  Object operator &(Object other) => "(${this}&$other)";
-  Object operator ^(Object other) => "(${this}^$other)";
-  Object operator <(Object other) => "(${this}<$other)";
-  Object operator >(Object other) => "(${this}>$other)";
-  Object operator <=(Object other) => "(${this}<=$other)";
-  Object operator >=(Object other) => "(${this}>=$other)";
-  Object operator <<(Object other) => "(${this}<<$other)";
-  Object operator >>(Object other) => "(${this}>>$other)";
-  // TODO: enable `>>>` when it has been implemented.
-  // String operator >>>(Object other) => "(${this}>>>$other)";
-
-  // Cannot make an extension method for `==` because it's declared by Object.
-
-  Object operator [](Object other) => "${this}[$other]";
-  void operator []=(Object other, Object value) {
-    setValue = "${this}[$other]=$value";
-  }
-
-  Object call([arg1, arg2]) =>
-      "${this}(${[arg1, arg2].where((x) => x != null).join(",")})";
-
-  Object get field => "${this}.field";
-  void set field(Object other) {
-    setValue = "${this}.field=$other";
-  }
-}
diff --git a/tests/language_2/extension_methods/static_extension_prefix_double_import_test.dart b/tests/language_2/extension_methods/static_extension_prefix_double_import_test.dart
deleted file mode 100644
index ce7c828c5ee..00000000000
--- a/tests/language_2/extension_methods/static_extension_prefix_double_import_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "helpers/on_object.dart";
-import "helpers/on_object.dart" as p2;
-
-void main() {
-  Object o = 1;
-  Expect.equals("object", o.onObject);
-}
diff --git a/tests/language_2/extension_methods/static_extension_prefix_import_conflict_test.dart b/tests/language_2/extension_methods/static_extension_prefix_import_conflict_test.dart
deleted file mode 100644
index 8984ed20f81..00000000000
--- a/tests/language_2/extension_methods/static_extension_prefix_import_conflict_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "helpers/on_object.dart";
-import "helpers/also_on_object.dart" as p2;
-
-void main() {
-  Object o = 1;
-  o.onObject;
-  //^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-  // [cfe] The property 'onObject' is defined in multiple extensions for 'Object' and neither is more specific.
-}
diff --git a/tests/language_2/extension_methods/static_extension_prefix_import_show_test.dart b/tests/language_2/extension_methods/static_extension_prefix_import_show_test.dart
deleted file mode 100644
index 8cc7e817cff..00000000000
--- a/tests/language_2/extension_methods/static_extension_prefix_import_show_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "helpers/on_object.dart" as p1 show OnObject;
-import "helpers/on_int.dart" as p2 show OnInt;
-
-void main() {
-  int i = 0;
-  Object o = i;
-  Expect.equals("int", i.onInt);
-  Expect.equals("int", i.onObject);
-  Expect.equals("object", o.onObject);
-}
diff --git a/tests/language_2/extension_methods/static_extension_prefix_import_test.dart b/tests/language_2/extension_methods/static_extension_prefix_import_test.dart
deleted file mode 100644
index 412b4991bb3..00000000000
--- a/tests/language_2/extension_methods/static_extension_prefix_import_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "helpers/on_object.dart" as p1;
-import "helpers/on_int.dart" as p2;
-
-void main() {
-  int i = 0;
-  Object o = i;
-  Expect.equals("int", i.onInt);
-  Expect.equals("int", i.onObject);
-  Expect.equals("object", o.onObject);
-}
diff --git a/tests/language_2/extension_methods/static_extension_resolution_failures_test.dart b/tests/language_2/extension_methods/static_extension_resolution_failures_test.dart
deleted file mode 100644
index 0555d3d997f..00000000000
--- a/tests/language_2/extension_methods/static_extension_resolution_failures_test.dart
+++ /dev/null
@@ -1,124 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests extension method resolution failures.
-
-import "package:expect/expect.dart";
-
-main() {
-  A a = C();
-  B1 b1 = C();
-  B2 b2 = C();
-  C c = C();
-
-  Expect.equals("EA.v1", a.v1);
-  Expect.equals("EB1.v1", b1.v1);
-  Expect.equals("EB2.v1", b2.v1);
-  Expect.equals("EC.v1", c.v1);
-
-  Expect.equals("EA.v2", a.v2);
-  Expect.equals("EB1.v2", b1.v2);
-  Expect.equals("EB2.v2", b2.v2);
-  // Cannot determine which of EB1 and EB2's v2 is more specific
-  c.v2;
-  //^^
-  // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-  // [cfe] The property 'v2' is defined in multiple extensions for 'C' and neither is more specific.
-
-  Expect.equals("EA.v3", a.v3);
-  Expect.equals("EA.v3", b1.v3);
-  Expect.equals("EA.v3", b2.v3);
-  Expect.equals("EA.v3", c.v3);
-
-  Iterable<num> i_num = <int>[];
-  Iterable<int> ii = <int>[];
-  List<num> ln = <int>[];
-  List<int> li = <int>[];
-
-  // No `i_num` extension declared.
-  i_num.i_num;
-  //    ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'i_num' isn't defined for the class 'Iterable<num>'.
-
-  Expect.equals("Iterable<int>.i_num", ii.i_num);
-  Expect.equals("List<num>.i_num", ln.i_num);
-
-  // Both apply, neither is more specific.
-  li.i_num;
-  // ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-  // [cfe] The property 'i_num' is defined in multiple extensions for 'List<int>' and neither is more specific.
-
-  // no most specific because both are equally specific.
-  c.cs;
-  //^^
-  // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-  // [cfe] The property 'cs' is defined in multiple extensions for 'C' and neither is more specific.
-
-  // Both EIT.e1 and ELO.e1 apply, but their instantiated on
-  // types are incomparable, and hence this is an error.
-  ln.e1();
-  // ^^
-  // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_EXTENSION_MEMBER_ACCESS
-  // [cfe] The method 'e1' is defined in multiple extensions for 'List<num>' and neither is more specific.
-}
-
-// Diamond class hierarchy.
-class A {}
-
-class B1 implements A {}
-
-class B2 implements A {}
-
-class C implements B1, B2 {}
-
-extension EA on A {
-  String get v1 => "EA.v1";
-  String get v2 => "EA.v2";
-  String get v3 => "EA.v3";
-}
-
-extension EB1 on B1 {
-  String get v1 => "EB1.v1";
-  String get v2 => "EB1.v2";
-}
-
-extension EB2 on B2 {
-  String get v1 => "EB2.v1";
-  String get v2 => "EB2.v2";
-}
-
-extension EC on C {
-  String get v1 => "EC.v1";
-}
-
-// Iterable<num>, Iterable<int>, List<num> and List<int> also forms diamond
-// hierarchy.
-extension II on Iterable<int> {
-  String get i_num => "Iterable<int>.i_num";
-}
-
-extension LN on List<num> {
-  String get i_num => "List<num>.i_num";
-}
-
-// Two exactly identical `on` types.
-extension C1 on C {
-  String get cs => "C1.cs";
-}
-
-extension C2 on C {
-  String get cs => "C2.cs";
-}
-
-extension EIT<T> on Iterable<T> {
-  String e1() => "Iterable<T>.e1";
-}
-
-extension ELO on List<Object> {
-  String e1() => "List<Object>.e1";
-}
diff --git a/tests/language_2/extension_methods/static_extension_resolution_test.dart b/tests/language_2/extension_methods/static_extension_resolution_test.dart
deleted file mode 100644
index ffde669ce2a..00000000000
--- a/tests/language_2/extension_methods/static_extension_resolution_test.dart
+++ /dev/null
@@ -1,232 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Tests the resolution of multiple applicable extensions.
-
-String lastSetterValue;
-
-class SuperTarget {}
-
-class Target<T> extends SuperTarget {
-  String targetMethod() => "targetMethod";
-  String get targetGetter => "targetGetter";
-  void set targetSetter(String argument) {
-    lastSetterValue = "targetSetter: $argument";
-  }
-}
-
-class SubTarget<T> extends Target<T> {
-  String subTargetMethod() => "subTargetMethod";
-  String get subTargetGetter => "subTargetGetter";
-  void set subTargetSetter(String argument) {
-    lastSetterValue = "subTargetSetter: $argument";
-  }
-}
-
-extension E1<T> on SubTarget<T> {
-  static String name = "SubTarget<T>";
-
-  String e1() => "$name.e1";
-
-  String targetMethod() => "$name.targetMethod";
-  String get targetGetter => "$name.targetGetter";
-  void set targetSetter(String value) {
-    lastSetterValue = "$name.targetSetter: $value";
-  }
-
-  String subTargetMethod() => "$name.subTargetMethod";
-  String get subTargetGetter => "$name.subTargetGetter";
-  void set subTargetSetter(String value) {
-    lastSetterValue = "$name.subTargetSetter: $value";
-  }
-
-  List<T> get typedList => <T>[];
-}
-
-extension E2 on SubTarget<Object> {
-  static String name = "SubTarget<Object>";
-
-  String e1() => "$name.e1";
-  String e2() => "$name.e2";
-
-  String targetMethod() => "$name.targetMethod";
-  String get targetGetter => "$name.targetGetter";
-  void set targetSetter(String value) {
-    lastSetterValue = "$name.targetSetter: $value";
-  }
-
-  String subTargetMethod() => "$name.subTargetMethod";
-  String get subTargetGetter => "$name.subTargetGetter";
-  void set subTargetSetter(String value) {
-    lastSetterValue = "$name.subTargetSetter: $value";
-  }
-}
-
-extension E3<T> on Target<T> {
-  static String name = "Target<T>";
-
-  String e1() => "$name.e1";
-  String e2() => "$name.e2";
-  String e3() => "$name.e3";
-
-  String targetMethod() => "$name.targetMethod";
-  String get targetGetter => "$name.targetGetter";
-  void set targetSetter(String value) {
-    lastSetterValue = "$name.targetSetter: $value";
-  }
-
-  String subTargetMethod() => "$name.subTargetMethod";
-  String get subTargetGetter => "$name.subTargetGetter";
-  void set subTargetSetter(String value) {
-    lastSetterValue = "$name.subTargetSetter: $value";
-  }
-
-  List<T> get typedList => <T>[];
-}
-
-extension E4 on Target<Object> {
-  static String name = "Target<Object>";
-
-  String e1() => "$name.e1";
-  String e2() => "$name.e2";
-  String e3() => "$name.e3";
-  String e4() => "$name.e4";
-
-  String targetMethod() => "$name.targetMethod";
-  String get targetGetter => "$name.targetGetter";
-  void set targetSetter(String value) {
-    lastSetterValue = "$name.targetSetter: $value";
-  }
-
-  String subTargetMethod() => "$name.subTargetMethod";
-  String get subTargetGetter => "$name.subTargetGetter";
-  void set subTargetSetter(String value) {
-    lastSetterValue = "$name.subTargetSetter: $value";
-  }
-}
-
-extension E5<T> on T {
-  static String name = "T";
-
-  String e1() => "$name.e1";
-  String e2() => "$name.e2";
-  String e3() => "$name.e3";
-  String e4() => "$name.e4";
-  String e5() => "$name.e5";
-
-  String targetMethod() => "$name.targetMethod";
-  String get targetGetter => "$name.targetGetter";
-  void set targetSetter(String value) {
-    lastSetterValue = "$name.targetSetter: $value";
-  }
-
-  String subTargetMethod() => "$name.subTargetMethod";
-  String get subTargetGetter => "$name.subTargetGetter";
-  void set subTargetSetter(String value) {
-    lastSetterValue = "$name.subTargetSetter: $value";
-  }
-
-  List<T> get typedList => <T>[];
-}
-
-extension E6 on Object {
-  static String name = "Object";
-
-  String e1() => "$name.e1";
-  String e2() => "$name.e2";
-  String e3() => "$name.e3";
-  String e4() => "$name.e4";
-  String e5() => "$name.e5";
-  String e6() => "$name.e6";
-
-  String targetMethod() => "$name.targetMethod";
-  String get targetGetter => "$name.targetGetter";
-  void set targetSetter(String value) {
-    lastSetterValue = "$name.targetSetter: $value";
-  }
-
-  String subTargetMethod() => "$name.subTargetMethod";
-  String get subTargetGetter => "$name.subTargetGetter";
-  void set subTargetSetter(String value) {
-    lastSetterValue = "$name.subTargetSetter: $value";
-  }
-}
-
-main() {
-  SubTarget<num> s1 = SubTarget<int>();
-  Target<num> t1 = SubTarget<int>();
-  SuperTarget o1 = SubTarget<int>();
-  Target<int> ti1 = SubTarget<int>();
-  ;
-  SubTarget<int> si1 = SubTarget<int>();
-  ;
-
-  // Interface methods take precedence.
-
-  Expect.equals("targetGetter", s1.targetGetter);
-  Expect.equals("targetMethod", s1.targetMethod());
-  s1.targetSetter = "1";
-  Expect.equals("targetSetter: 1", lastSetterValue);
-
-  Expect.equals("subTargetGetter", s1.subTargetGetter);
-  Expect.equals("subTargetMethod", s1.subTargetMethod());
-  s1.subTargetSetter = "2";
-  Expect.equals("subTargetSetter: 2", lastSetterValue);
-
-  Expect.equals("targetGetter", t1.targetGetter);
-  Expect.equals("targetMethod", t1.targetMethod());
-  t1.targetSetter = "3";
-  Expect.equals("targetSetter: 3", lastSetterValue);
-
-  // Methods not on the instance resolve to extension methods.
-
-  Expect.equals("Target<T>.subTargetGetter", t1.subTargetGetter);
-  Expect.equals("Target<T>.subTargetMethod", t1.subTargetMethod());
-  t1.subTargetSetter = "4";
-  Expect.equals("Target<T>.subTargetSetter: 4", lastSetterValue);
-
-  Expect.type<List<int>>(ti1.typedList);
-  Expect.type<List<int>>(si1.typedList);
-  Expect.type<List<SuperTarget>>(o1.typedList);
-
-  // Extension methods can be called directly using override syntax.
-
-  Expect.equals("SubTarget<T>.targetGetter", E1<num>(si1).targetGetter);
-  Expect.equals("SubTarget<T>.targetMethod", E1<num>(si1).targetMethod());
-  E1<num>(si1).targetSetter = "5";
-  Expect.equals("SubTarget<T>.targetSetter: 5", lastSetterValue);
-
-  Expect.equals("SubTarget<T>.subTargetGetter", E1<num>(si1).subTargetGetter);
-  Expect.equals("SubTarget<T>.subTargetMethod", E1<num>(si1).subTargetMethod());
-  E1<num>(si1).subTargetSetter = "6";
-  Expect.equals("SubTarget<T>.subTargetSetter: 6", lastSetterValue);
-
-  Expect.type<List<num>>(E1<num>(si1).typedList);
-
-  // Applicable methods.
-  Expect.equals("SubTarget<T>.e1", s1.e1());
-  Expect.equals("T.e2", s1.e2());
-  Expect.equals("T.e3", s1.e3());
-  Expect.equals("T.e4", s1.e4());
-  Expect.equals("T.e5", s1.e5());
-  Expect.equals("Object.e6", s1.e6());
-
-  Expect.equals("Target<T>.e1", t1.e1());
-  Expect.equals("Target<T>.e2", t1.e2());
-  Expect.equals("Target<T>.e3", t1.e3());
-  Expect.equals("T.e4", t1.e4());
-  Expect.equals("T.e5", t1.e5());
-  Expect.equals("Object.e6", t1.e6());
-
-  Expect.equals("T.e1", o1.e1());
-  Expect.equals("T.e2", o1.e2());
-  Expect.equals("T.e3", o1.e3());
-  Expect.equals("T.e4", o1.e4());
-  Expect.equals("T.e5", o1.e5());
-  Expect.equals("Object.e6", o1.e6());
-}
diff --git a/tests/language_2/extension_methods/static_extension_setter_getter_assignability_error_test.dart b/tests/language_2/extension_methods/static_extension_setter_getter_assignability_error_test.dart
deleted file mode 100644
index f6e685432a9..00000000000
--- a/tests/language_2/extension_methods/static_extension_setter_getter_assignability_error_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// It is an error to have a setter and a getter in an extension where
-// the return type of the getter is not assignable to the argument type
-// of the setter.
-extension E1 on int {
-  static int get property => 1;
-  //     ^^
-  // [cfe] unspecified
-  //             ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.GETTER_NOT_ASSIGNABLE_SETTER_TYPES
-  static void set property(String value) {}
-  //                       ^^
-  // [cfe] unspecified
-  int get property2 => 1;
-  //  ^^
-  // [cfe] unspecified
-  //      ^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.GETTER_NOT_ASSIGNABLE_SETTER_TYPES
-  void set property2(String x) {}
-  //                 ^^
-  // [cfe] unspecified
-}
-
-void main() {}
diff --git a/tests/language_2/extension_methods/static_extension_silly_types_test.dart b/tests/language_2/extension_methods/static_extension_silly_types_test.dart
deleted file mode 100644
index 722e5ee5085..00000000000
--- a/tests/language_2/extension_methods/static_extension_silly_types_test.dart
+++ /dev/null
@@ -1,158 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests extension methods on the non-function, non-class types.
-
-import "dart:async" show FutureOr;
-
-import "package:expect/expect.dart";
-
-void main() {
-  M m = C();
-  Object o = Object();
-  Function fun = () => null;
-  f() => 0;
-  String f1(int x) => "$x";
-  String f2([int x = 0, int y = 0]) => "${x + y}";
-  int i = 0;
-  Future<int> fi = Future<int>.value(0);
-  Future<Future<int>> ffi = Future<Future<int>>.value(fi);
-  FutureOr<FutureOr<int>> foi = 1;
-  Future<Null> fn = Future<Null>.value(null);
-  Null n = null;
-
-  // `on M` matches mixin interface.
-  Expect.equals(1, m.m);
-  // `on void` matches anything.
-  Expect.equals(2, o.v);
-  Expect.equals(2, n.v);
-  // `on dynamic` matches anything.
-  Expect.equals(3, o.d);
-  Expect.equals(3, n.d);
-  // `on Function` matches any function type and Function itself.
-  Expect.equals(4, f.f);
-  Expect.equals(4, fun.f);
-  Expect.equals(4, f1.f);
-  Expect.equals(4, f2.f);
-  // `on <function type>` matches those functions.
-  Expect.equals(5, f1.fu);
-  Expect.equals(5, f2.fu);
-  // `on FutureOr<int>` matches both future and not.
-  Expect.equals(6, i.fi);
-  Expect.equals(6, fi.fi);
-  // `on FutureOr<Object>` matches everything.
-  Expect.equals(7, o.fo);
-  Expect.equals(7, n.fo);
-  // `on FutureOr<Future<Object>>` matches any future or futureOr.
-  Expect.equals(8, fi.ffo);
-  Expect.equals(8, ffi.ffo);
-  // `on FutureOr<Null>` matches Null and FutureOr<Null>.
-  Expect.equals(9, fn.fn);
-  Expect.equals(9, n.fn);
-  // `on Null` does match null. No errors for receiver being null.
-  Expect.equals(10, n.n);
-
-  // Matching can deconstruct static function types.
-  Expect.equals(int, f1.parameterType);
-  Expect.equals(String, f1.returnType);
-  Expect.equals(int, f2.parameterType);
-  Expect.equals(String, f2.returnType);
-  // And static FutureOr types.
-  Expect.equals(int, i.futureType);
-  Expect.equals(int, fi.futureType);
-  Expect.equals(type<Future<int>>(), ffi.futureType);
-  Expect.equals(type<FutureOr<int>>(), foi.futureType);
-  // TODO: Update and enable when
-  //  https://github.com/dart-lang/language/issues/436
-  // is resolved.
-  // Expect.equals(dynamic, n.futureType); // Inference treats `null` as no hint.
-}
-
-Type type<T>() => T;
-
-mixin M {}
-
-class C = Object with M;
-
-extension on M {
-  int get m => 1;
-}
-
-extension on void {
-  int get v => 2;
-  testVoid() {
-    // No access on void. Static type of `this` is void!
-    this //
-            .toString() //# 01: compile-time error
-        ;
-  }
-}
-
-extension on dynamic {
-  int get d => 3;
-
-  void testDynamic() {
-    // Static type of `this` is dynamic, allows dynamic invocation.
-    this.arglebargle();
-  }
-}
-
-extension on Function {
-  int get f => 4;
-
-  void testFunction() {
-    // Static type of `this` is Function. Allows any dynamic invocation.
-    this();
-    this(1);
-    this(x: 1);
-    // No function can have both optional positional and named parameters.
-  }
-}
-
-extension on String Function(int) {
-  int get fu => 5;
-}
-
-extension on FutureOr<int> {
-  int get fi => 6;
-
-  void testFutureOr() {
-    var self = this;
-    // The `this` type can be type-promoted to both Future<int> and int.
-    if (self is Future<int>) {
-      self.then((int x) {});
-    } else if (self is int) {
-      self + 2;
-    }
-  }
-}
-
-extension on FutureOr<Object> {
-  int get fo => 7;
-}
-
-extension on FutureOr<Future<Object>> {
-  int get ffo => 8;
-}
-
-extension on FutureOr<Null> {
-  int get fn => 9;
-}
-
-extension on Null {
-  int get n => 10;
-}
-
-// TODO: Type `Never` when it's added.
-
-extension<T> on FutureOr<T> {
-  Type get futureType => T;
-}
-
-extension<R, T> on R Function(T) {
-  Type get returnType => R;
-  Type get parameterType => T;
-}
diff --git a/tests/language_2/extension_methods/static_extension_syntax_test.dart b/tests/language_2/extension_methods/static_extension_syntax_test.dart
deleted file mode 100644
index 495d297bcff..00000000000
--- a/tests/language_2/extension_methods/static_extension_syntax_test.dart
+++ /dev/null
@@ -1,162 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests extension declaration syntax combinations.
-
-import "package:expect/expect.dart";
-
-void checkStaticType<T>(T x) {
-  Expect.type<T>(x);
-}
-
-main() {
-  Object object = <int>[];
-  List<Object> list = <int>[];
-  List<num> numList = <int>[];
-  Pair<int, double> numPair = Pair(1, 2.5);
-  RecSolution recs = RecSolution();
-
-  Expect.equals(0, object.e0);
-  Expect.equals(0, list.e0);
-
-  Expect.equals(1, object.e1);
-  Expect.equals(1, list.e1);
-
-  Expect.equals(0, object.e4);
-  Expect.equals(0, list.e4);
-  Expect.equals(4, numList.e4);
-
-  Expect.equals(0, object.e5);
-  Expect.equals(0, list.e5);
-  Expect.equals(5, numList.e5);
-
-  Expect.equals(0, object.e6);
-  Expect.equals(6, list.e6);
-  Expect.equals(6, numList.e6);
-  checkStaticType<List<num>>(numList.list6);
-
-  Expect.equals(0, object.e7);
-  Expect.equals(7, list.e7);
-  Expect.equals(7, numList.e7);
-  checkStaticType<List<num>>(numList.list7);
-
-  Expect.equals(10, object.e10);
-  Expect.equals(10, numList.e10);
-  checkStaticType<List<Object>>(object.list10);
-  checkStaticType<List<List<num>>>(numList.list10);
-
-  Expect.equals(11, object.e11);
-  Expect.equals(11, numList.e11);
-  checkStaticType<List<Object>>(object.list11);
-  checkStaticType<List<List<num>>>(numList.list11);
-
-  Expect.equals(0, object.e14);
-  Expect.equals(14, numPair.e14);
-  Expect.type<List<num>>(numPair.list14);
-  checkStaticType<List<num>>(numPair.list14);
-
-  Expect.equals(0, object.e16);
-  Expect.equals(16, numPair.e16);
-  Expect.type<Map<int, double>>(numPair.map16);
-  checkStaticType<Map<int, double>>(numPair.map16);
-
-  Expect.equals(0, object.e17);
-  Expect.equals(0, list.e17);
-  Expect.equals(17, numList.e17);
-  Expect.type<List<num>>(numList.list17);
-  checkStaticType<List<num>>(numList.list17);
-
-  Expect.equals(0, object.e19);
-  Expect.equals(19, recs.e19);
-  Expect.type<List<RecSolution>>(recs.list19);
-  checkStaticType<List<RecSolution>>(recs.list19);
-
-  Expect.equals(0, object.e20);
-  Expect.equals(20, recs.e20);
-  Expect.type<List<RecSolution>>(recs.list20);
-  checkStaticType<List<RecSolution>>(recs.list20);
-}
-
-extension on Object {
-  int get e0 => 0;
-  // Fallbacks to test cases where other extensions do not apply.
-  int get e4 => 0;
-  int get e5 => 0;
-  int get e6 => 0;
-  int get e7 => 0;
-  int get e14 => 0;
-  int get e16 => 0;
-  int get e17 => 0;
-  int get e19 => 0;
-  int get e20 => 0;
-}
-
-extension E1 on Object {
-  int get e1 => 1;
-}
-
-extension on List<num> {
-  int get e4 => 4;
-}
-
-extension E5 on List<num> {
-  int get e5 => 5;
-}
-
-extension<T> on List<T> {
-  int get e6 => 6;
-  List<T> get list6 => <T>[];
-}
-
-extension E7<T> on List<T> {
-  int get e7 => 7;
-  List<T> get list7 => <T>[];
-}
-
-extension<T> on T {
-  int get e10 => 10;
-  List<T> get list10 => <T>[];
-}
-
-extension E11<T> on T {
-  int get e11 => 11;
-  List<T> get list11 => <T>[];
-}
-
-extension<T> on Pair<T, T> {
-  int get e14 => 14;
-  List<T> get list14 => <T>[];
-}
-
-extension E16<S, T> on Pair<S, T> {
-  int get e16 => 16;
-  Map<S, T> get map16 => <S, T>{};
-}
-
-extension<T extends num> on List<T> {
-  int get e17 => 17;
-  List<T> get list17 => <T>[];
-}
-
-extension<T extends Rec<T>> on T {
-  int get e19 => 19;
-  List<T> get list19 => <T>[];
-}
-
-extension E20<T extends Rec<T>> on T {
-  int get e20 => 20;
-  List<T> get list20 => <T>[];
-}
-
-class Pair<A, B> {
-  final A first;
-  final B second;
-  const Pair(this.first, this.second);
-}
-
-class Rec<T extends Rec<T>> {}
-
-class RecSolution extends Rec<RecSolution> {}
diff --git a/tests/language_2/extension_methods/static_extension_this_not_promoted_error_test.dart b/tests/language_2/extension_methods/static_extension_this_not_promoted_error_test.dart
deleted file mode 100644
index 4e8f4a74359..00000000000
--- a/tests/language_2/extension_methods/static_extension_this_not_promoted_error_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test verifies that attempts to promote the type of `this` inside an
-// extension method have no effect.
-
-void f(dynamic d) {}
-
-class C {
-  int cProp;
-}
-
-class D extends C {
-  int dProp;
-}
-
-extension on C {
-  void testC() {
-    if (this is D) {
-      f(this.dProp);
-      //     ^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'dProp' isn't defined for the class 'C'.
-      f(dProp);
-      //^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-      // [cfe] The getter 'dProp' isn't defined for the class 'C'.
-    }
-  }
-}
-
-main() {
-  C().testC();
-  D().testC();
-}
diff --git a/tests/language_2/extension_methods/syntax/extension_methods_test.dart b/tests/language_2/extension_methods/syntax/extension_methods_test.dart
deleted file mode 100644
index d67a039d32c..00000000000
--- a/tests/language_2/extension_methods/syntax/extension_methods_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class C {
-  int get one => 1;
-}
-
-extension E on C {
-  int get two => 2;
-}
-
-main() {
-  C c = C();
-  var result = c.one + c.two;
-  Expect.equals(result, 3);
-}
diff --git a/tests/language_2/factory/and_instance_variable_runtime_test.dart b/tests/language_2/factory/and_instance_variable_runtime_test.dart
deleted file mode 100644
index ef2a3b371b1..00000000000
--- a/tests/language_2/factory/and_instance_variable_runtime_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-abstract class A {
-  var bar;
-  factory A.bar() = B.bar;
-
-  get foo => bar;
-
-}
-
-class B implements A {
-  var bar;
-  factory B.bar() => new C.bar();
-
-  get foo => bar;
-
-
-  B() {}
-}
-
-class C extends B {
-  C.bar() {
-    bar = "foo";
-  }
-
-
-}
-
-main() {
-  assert(new A.bar().foo == "foo");
-  assert(new B.bar().foo == "foo");
-  assert(new C.bar().foo == "foo");
-  assert(new A.bar().bar == "foo");
-  assert(new B.bar().bar == "foo");
-  assert(new C.bar().bar == "foo");
-}
diff --git a/tests/language_2/factory/and_instance_variable_test.dart b/tests/language_2/factory/and_instance_variable_test.dart
deleted file mode 100644
index 79cef395939..00000000000
--- a/tests/language_2/factory/and_instance_variable_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-abstract class A {
-  var bar;
-  factory A.bar() = B.bar;
-
-  get foo => bar;
-  static get baz => bar;
-  //                ^^^
-  // [analyzer] COMPILE_TIME_ERROR.INSTANCE_MEMBER_ACCESS_FROM_STATIC
-  // [cfe] Undefined name 'bar'.
-}
-
-class B implements A {
-  var bar;
-  factory B.bar() => new C.bar();
-
-  get foo => bar;
-  static get baz => bar;
-  //                ^^^
-  // [analyzer] COMPILE_TIME_ERROR.INSTANCE_MEMBER_ACCESS_FROM_STATIC
-  // [cfe] Undefined name 'bar'.
-
-  B() {}
-}
-
-class C extends B {
-  C.bar() {
-    bar = "foo";
-  }
-
-  static get baz => bar;
-  //                ^^^
-  // [analyzer] COMPILE_TIME_ERROR.INSTANCE_MEMBER_ACCESS_FROM_STATIC
-  // [cfe] Undefined name 'bar'.
-}
-
-main() {
-  assert(new A.bar().foo == "foo");
-  assert(new B.bar().foo == "foo");
-  assert(new C.bar().foo == "foo");
-  assert(new A.bar().bar == "foo");
-  assert(new B.bar().bar == "foo");
-  assert(new C.bar().bar == "foo");
-}
diff --git a/tests/language_2/factory/arrow_test.dart b/tests/language_2/factory/arrow_test.dart
deleted file mode 100644
index 6066f8af786..00000000000
--- a/tests/language_2/factory/arrow_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  A.foo() {}
-  factory A() => new A.foo();
-}
-
-main() {
-  Expect.isTrue(new A() is A);
-}
diff --git a/tests/language_2/factory/factory1_test.dart b/tests/language_2/factory/factory1_test.dart
deleted file mode 100644
index bac0e9418ac..00000000000
--- a/tests/language_2/factory/factory1_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing factory generic result types.
-
-// @dart = 2.9
-
-class A<T> {
-  A() {}
-  factory A.factory() {
-    return new A<String>();
-    //     ^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-    //         ^
-    // [cfe] A value of type 'A<String>' can't be assigned to a variable of type 'A<T>'.
-  }
-}
-
-class B<T> extends A<T> {
-  B() {}
-  factory B.factory() {
-    return new B<String>();
-    //     ^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-    //         ^
-    // [cfe] A value of type 'B<String>' can't be assigned to a variable of type 'B<T>'.
-  }
-}
-
-main() {
-  new A<String>.factory();
-  new A<int>.factory();
-  new B<String>.factory();
-  new B<int>.factory();
-}
diff --git a/tests/language_2/factory/factory2_test.dart b/tests/language_2/factory/factory2_test.dart
deleted file mode 100644
index 48c45d0dde0..00000000000
--- a/tests/language_2/factory/factory2_test.dart
+++ /dev/null
@@ -1,88 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test compile time error for factories with parameterized types.
-
-import "dart:collection";
-
-abstract class A<T> {
-  factory A.create() = AFactory<T>.create;
-  //                   ^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-  //                   ^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.REDIRECT_TO_INVALID_RETURN_TYPE
-  // [cfe] Expected 0 type arguments.
-}
-
-class AFactory {
-  //   Compile time error: should be AFactory<T> to match abstract class above
-  factory A.create() {
-  //      ^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_FACTORY_NAME_NOT_A_CLASS
-  // [cfe] The name of a constructor must match the name of the enclosing class.
-  }
-}
-
-abstract class Link<T> extends IterableBase<T> {
-  // does not match constructor for LinkFactory
-  factory Link(T head, [Link<T> tail]) =
-      LinkFactory<T>;
-//    ^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.REDIRECT_TO_INVALID_RETURN_TYPE
-// [cfe] The constructor function type 'LinkFactory<T> Function(dynamic, [Link<dynamic>])' isn't a subtype of 'Link<T> Function(T, [Link<T>])'.
-  Link<T> prepend(T element);
-}
-
-abstract class EmptyLink<T> extends Link<T> {
-  const factory EmptyLink() = LinkTail<T>;
-}
-
-class LinkFactory<T> {
-  factory LinkFactory(head, [Link tail]) {}
-}
-
-// Does not implement all of Iterable
-class AbstractLink<T> implements Link<T> {
-//    ^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER
-// [cfe] The non-abstract class 'AbstractLink' is missing implementations for these members:
-  const AbstractLink();
-  Link<T> prepend(T element) {
-    return new Link<T>(element, this);
-  }
-}
-
-// Does not implement all of Iterable
-class LinkTail<T> extends AbstractLink<T> implements EmptyLink<T> {
-//    ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER
-// [cfe] The non-abstract class 'LinkTail' is missing implementations for these members:
-  const LinkTail();
-}
-
-// Does not implement all of Iterable
-class LinkEntry<T> extends AbstractLink<T> {
-//    ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER
-// [cfe] The non-abstract class 'LinkEntry' is missing implementations for these members:
-  LinkEntry(T head, Link<T> realTail);
-}
-
-class Fisk {
-  // instantiation of abstract class
-  Link<String> nodes = const EmptyLink();
-}
-
-main() {
-  // Equivalent to new Link<dynamic>.create().
-  var a = new A.create();
-
-  new Fisk();
-  // instantiation of abstract class
-  new EmptyLink<String>().prepend('hest');
-  // instantiation of abstract class
-  const EmptyLink<String>().prepend('fisk');
-}
diff --git a/tests/language_2/factory/factory3_test.dart b/tests/language_2/factory/factory3_test.dart
deleted file mode 100644
index d5f0313b64b..00000000000
--- a/tests/language_2/factory/factory3_test.dart
+++ /dev/null
@@ -1,74 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:collection";
-
-// Test compile time error for factories with parameterized types.
-
-abstract class A<T> {
-  A();
-  A.create();
-}
-
-abstract class B<T> extends A<T> {}
-
-// Compile time error: should be AFactory<T> to match abstract class above
-class AFactory extends B<int> {
-  factory A.create() {
-    //    ^
-    // [analyzer] COMPILE_TIME_ERROR.INVALID_FACTORY_NAME_NOT_A_CLASS
-    // [cfe] The name of a constructor must match the name of the enclosing class.
-  }
-}
-
-abstract class Link<T> extends IterableBase<T> {
-  factory Link(T head, [Link<T> tail]) = LinkEntry<T>;
-  Link<T> prepend(T element);
-}
-
-abstract class EmptyLink<T> extends Link<T> {
-  const factory EmptyLink() = LinkTail<T>;
-}
-
-class AbstractLink<T> implements Link<T> {
-//    ^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER
-// [cfe] The non-abstract class 'AbstractLink' is missing implementations for these members:
-  const AbstractLink();
-  Link<T> prepend(T element) {
-    print("$element");
-    if (0 is T) {
-      throw "0 is not a T";
-    }
-    return new Link<T>(element, this);
-  }
-}
-
-class LinkTail<T> extends AbstractLink<T> implements EmptyLink<T> {
-//    ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER
-// [cfe] The non-abstract class 'LinkTail' is missing implementations for these members:
-  const LinkTail();
-}
-
-class LinkEntry<T> extends AbstractLink<T> {
-//    ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER
-// [cfe] The non-abstract class 'LinkEntry' is missing implementations for these members:
-  LinkEntry(T head, [Link<T> Tail]);
-}
-
-class Fisk {
-  Link<Fisk> nodes = const EmptyLink<Fisk>();
-  final int id;
-  Fisk(this.id);
-  toString() => id.toString();
-}
-
-main() {
-  var a = new AFactory.create();
-  new Fisk(0).nodes.prepend(new Fisk(1)).prepend(new Fisk(2));
-}
diff --git a/tests/language_2/factory/factory4_runtime_test.dart b/tests/language_2/factory/factory4_runtime_test.dart
deleted file mode 100644
index 7391e768c3e..00000000000
--- a/tests/language_2/factory/factory4_runtime_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-abstract class Link<T> {
-
-}
-
-class A<T> {}
-
-class LinkFactory<T> extends A<T> {
-  factory LinkFactory.create() {
-    return null;
-  }
-}
-
-main() {
-
-}
diff --git a/tests/language_2/factory/factory4_test.dart b/tests/language_2/factory/factory4_test.dart
deleted file mode 100644
index 220c014fdca..00000000000
--- a/tests/language_2/factory/factory4_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-abstract class Link<T> {
-  factory Link.create() = LinkFactory.create;
-  //                      ^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.REDIRECT_TO_INVALID_RETURN_TYPE
-  // [cfe] The constructor function type 'LinkFactory<dynamic> Function()' isn't a subtype of 'Link<T> Function()'.
-}
-
-class A<T> {}
-
-class LinkFactory<T> extends A<T> {
-  factory LinkFactory.create() {
-    return null;
-  }
-}
-
-main() {
-  new Link<int>.create();
-}
diff --git a/tests/language_2/factory/factory5_runtime_test.dart b/tests/language_2/factory/factory5_runtime_test.dart
deleted file mode 100644
index e7b8700ffc1..00000000000
--- a/tests/language_2/factory/factory5_runtime_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-abstract class Link<T> {
-
-}
-
-class LinkFactory<T> {
-  factory LinkFactory.create() {
-    return null;
-  }
-
-}
-
-main() {
-
-}
diff --git a/tests/language_2/factory/factory5_test.dart b/tests/language_2/factory/factory5_test.dart
deleted file mode 100644
index 5b1e442585e..00000000000
--- a/tests/language_2/factory/factory5_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-abstract class Link<T> {
-  factory Link.create() = LinkFactory<T>.create;
-  //                      ^^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.REDIRECT_TO_INVALID_RETURN_TYPE
-  // [cfe] The constructor function type 'LinkFactory<T> Function()' isn't a subtype of 'Link<T> Function()'.
-}
-
-class LinkFactory<T> {
-  factory LinkFactory.create() {
-    return null;
-  }
-  factory LinkFactory.Foo() = Foo<T>;
-  //                          ^^^
-  // [analyzer] COMPILE_TIME_ERROR.REDIRECT_TO_NON_CLASS
-  // [cfe] Couldn't find constructor 'Foo'.
-  //                          ^
-  // [cfe] Redirection constructor target not found: 'Foo'
-}
-
-main() {
-  new Link<int>.create();
-}
diff --git a/tests/language_2/factory/factory6_runtime_test.dart b/tests/language_2/factory/factory6_runtime_test.dart
deleted file mode 100644
index 68d4d7b3cda..00000000000
--- a/tests/language_2/factory/factory6_runtime_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-abstract class Link<T> {
-
-}
-
-class LinkFactory<T> {
-
-}
-
-main() {
-
-}
diff --git a/tests/language_2/factory/factory6_test.dart b/tests/language_2/factory/factory6_test.dart
deleted file mode 100644
index d89d52117ed..00000000000
--- a/tests/language_2/factory/factory6_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-abstract class Link<T> {
-  factory Link.Foo() = LinkFactory<T>.Foo;
-  //                   ^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.REDIRECT_TO_INVALID_RETURN_TYPE
-  // [cfe] The constructor function type 'LinkFactory<T> Function()' isn't a subtype of 'Link<T> Function()'.
-}
-
-class LinkFactory<T> {
-  factory LinkFactory.Foo() = Foo<T>;
-  //                          ^^^
-  // [analyzer] COMPILE_TIME_ERROR.REDIRECT_TO_NON_CLASS
-  // [cfe] Couldn't find constructor 'Foo'.
-  //                          ^
-  // [cfe] Redirection constructor target not found: 'Foo'
-}
-
-main() {
-  Expect.throws(() => new Link<int>.Foo());
-}
diff --git a/tests/language_2/factory/factory_test.dart b/tests/language_2/factory/factory_test.dart
deleted file mode 100644
index 81f556a75d0..00000000000
--- a/tests/language_2/factory/factory_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing factories.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  factory A(n) {
-    return new A.internal(n);
-  }
-  A.internal(n) : n_ = n {}
-  var n_;
-}
-
-class B {
-  factory B.my() {
-    return new B(3);
-  }
-  B(n) : n_ = n {}
-  var n_;
-}
-
-class FactoryTest {
-  static testMain() {
-    new B.my();
-    var b = new B.my();
-    Expect.equals(3, b.n_);
-    var a = new A(5);
-    Expect.equals(5, a.n_);
-  }
-}
-
-// Test compile time error for factories with parameterized types.
-
-abstract class Link<T> {
-  factory Link.create() = LinkFactory<T>.create;
-  //                      ^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-  // [cfe] Expected 0 type arguments.
-  //                      ^^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.REDIRECT_TO_INVALID_RETURN_TYPE
-}
-
-class LinkFactory {
-  //   Compile time error: should be LinkFactory<T> to match abstract class above
-  factory Link.create() {
-  //      ^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_FACTORY_NAME_NOT_A_CLASS
-  // [cfe] The name of a constructor must match the name of the enclosing class.
-    return null;
-  }
-}
-
-main() {
-  FactoryTest.testMain();
-  var a = new Link<int>.create();
-}
diff --git a/tests/language_2/factory/implementation_test.dart b/tests/language_2/factory/implementation_test.dart
deleted file mode 100644
index e381fbe2a1b..00000000000
--- a/tests/language_2/factory/implementation_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class A {
-  factory A(int x, int y) = B;
-}
-
-class B implements A {
-  final int x;
-  final int y;
-
-  B(this.x, this.y);
-
-  // This factory should never be invoked.
-  factory B.A(int a, int b) {
-    return new B(0, 0);
-  }
-
-  factory B.X(int a, int b) {
-    return new B(a * 10, b * 10);
-  }
-}
-
-main() {
-  var a = new B(1, 2);
-  // Check that constructor B is invoked and not factory B.A.
-  Expect.equals(1, a.x);
-  Expect.equals(2, a.y);
-
-  var x = new B.X(11, 22);
-  // Check that factory is invoked.
-  Expect.equals(110, x.x);
-  Expect.equals(220, x.y);
-}
diff --git a/tests/language_2/factory/redirection2_runtime_test.dart b/tests/language_2/factory/redirection2_runtime_test.dart
deleted file mode 100644
index ab1f3e537f4..00000000000
--- a/tests/language_2/factory/redirection2_runtime_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-// Test that it is a compile-time error to have a redirection in a
-// non-factory constructor.
-
-class Foo {
-  Foo()
-
-  ;
-}
-
-class Bar extends Foo {
-  factory Bar() => null;
-}
-
-main() {
-  Expect.isTrue(new Foo() is Foo);
-  Expect.isFalse(new Foo() is Bar);
-}
diff --git a/tests/language_2/factory/redirection2_test.dart b/tests/language_2/factory/redirection2_test.dart
deleted file mode 100644
index 44976a8724c..00000000000
--- a/tests/language_2/factory/redirection2_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that it is a compile-time error to have a redirection in a
-// non-factory constructor.
-
-class Foo {
-  Foo()
-  = Bar
-//^
-// [analyzer] SYNTACTIC_ERROR.REDIRECTION_IN_NON_FACTORY_CONSTRUCTOR
-// [cfe] Expected a function body or '=>'.
-//^
-// [cfe] Only factory constructor can specify '=' redirection.
-//  ^
-// [cfe] Constructors can't have a return type.
-  ;
-}
-
-class Bar extends Foo {
-  factory Bar() => null;
-}
-
-main() {
-  Expect.isTrue(new Foo() is Foo);
-  Expect.isFalse(new Foo() is Bar);
-}
diff --git a/tests/language_2/factory/redirection3_cyclic_runtime_test.dart b/tests/language_2/factory/redirection3_cyclic_runtime_test.dart
deleted file mode 100644
index 14982d7a10d..00000000000
--- a/tests/language_2/factory/redirection3_cyclic_runtime_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that a cycle in redirecting factories leads to a compile-time error.
-
-class A {
-  factory A.foo() = B;
-}
-
-class B implements A {
-  factory B() = C.bar;
-}
-
-class C implements B {
-  factory C.bar() = C.foo;
-  factory C.foo() = C
-
-  ;
-  C();
-}
-
-main() {
-  new A.foo();
-}
diff --git a/tests/language_2/factory/redirection3_cyclic_test.dart b/tests/language_2/factory/redirection3_cyclic_test.dart
deleted file mode 100644
index 2f3659406eb..00000000000
--- a/tests/language_2/factory/redirection3_cyclic_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that a cycle in redirecting factories leads to a compile-time error.
-
-class A {
-  factory A.foo() = B;
-}
-
-class B implements A {
-  factory B() = C.bar;
-}
-
-class C implements B {
-  factory C.bar() = C.foo;
-  //      ^
-  // [cfe] Cyclic definition of factory 'C.bar'.
-  //                ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.RECURSIVE_CONSTRUCTOR_REDIRECT
-  factory C.foo() = C.bar();
-  //      ^
-  // [cfe] Cyclic definition of factory 'C.foo'.
-  //                ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.RECURSIVE_CONSTRUCTOR_REDIRECT
-  //                  ^^^
-  // [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-  // [cfe] Expected ';' after this.
-  //                     ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] Expected an identifier, but got '('.
-  //                     ^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONCRETE_CLASS_WITH_ABSTRACT_MEMBER
-  C();
-}
-
-main() {
-  new A.foo();
-}
diff --git a/tests/language_2/factory/redirection_test.dart b/tests/language_2/factory/redirection_test.dart
deleted file mode 100644
index 75d7071bf3d..00000000000
--- a/tests/language_2/factory/redirection_test.dart
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  A() : x = null;
-
-  const A.constant(this.x);
-
-  factory A.factory() {
-    return new B<Set>();
-  }
-
-  factory A.test01() = T; // //# 01: compile-time error
-
-  factory A.test02() = dynamic; // //# 02: compile-time error
-
-  factory A.test03() = Undefined; // //# 03: compile-time error
-
-  factory A.test04() = C.test04; // //# 04: compile-time error
-
-  final T x;
-}
-
-class B<T> extends A<T> {
-  B();
-
-  factory B.A() = A<T>;
-
-  const factory B.A_constant(T x) = A<T>.constant;
-
-  factory B.A_factory() = A<T>.factory;
-
-  factory B.test04() = A.test04; // //# 04: continued
-
-  factory B.test05(int incompatible) = A<T>.factory; // //# 05: compile-time error
-
-  factory B.test05(int incompatible) = A<T>.factory; // //# 06: compile-time error
-}
-
-class C<K, V> extends B<V> {
-  C();
-
-  factory C.A() = A<V>; // //# none: compile-time error
-
-  factory C.A_factory() = A<V>.factory;  // //# none: compile-time error
-
-  const factory C.B_constant(V x) = B<V>.A_constant;
-
-  factory C.test04() = B.test04; // //# 04: continued
-
-  factory C.test06(int incompatible) = B<K>.test05; // //# 06: continued
-
-  const factory C.test07(V x) = B<V>.A; // //# 07: compile-time error
-}
-
-main() {
-  new A<List>.test01(); // //# 01: continued
-  new A<List>.test02(); // //# 02: continued
-  new A<List>.test03(); // //# 03: continued
-  new C.test04(); // //# 04: continued
-  new B.test05(0); // //# 05: continued
-  new C<int, int>.test06(0); // //# 06: continued
-  new C<int, int>.test07(0); // //# 07: continued
-  Expect.isTrue(new A<List>() is A<List>);
-  Expect.isTrue(new A<bool>.constant(true).x);
-  Expect.isTrue(new A<Set>.factory() is B<Set>);
-  Expect.isTrue(new B<List>.A() is A<List>); // //# 08: compile-time error
-  Expect.isFalse(new B<List>.A() is A<Set>); // //# 09: compile-time error
-  Expect.isTrue(new B<bool>.A_constant(true).x); // //# 10: compile-time error
-  Expect.isTrue(new B<List>.A_factory() is B<Set>); // //# 11: compile-time error
-  Expect.isTrue(new C<String, num>.A() is A<num>); // //# 12: compile-time error
-  Expect.isTrue(new C<String, num>.A_factory() is B<Set>); // //# 13: compile-time error
-  Expect.isTrue(new C<String, bool>.B_constant(true).x); // //# 14: compile-time error
-}
diff --git a/tests/language_2/factory/return_type_checked_runtime_test.dart b/tests/language_2/factory/return_type_checked_runtime_test.dart
deleted file mode 100644
index 0e2febd8035..00000000000
--- a/tests/language_2/factory/return_type_checked_runtime_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class A {
-
-}
-
-main() {
-
-}
diff --git a/tests/language_2/factory/return_type_checked_test.dart b/tests/language_2/factory/return_type_checked_test.dart
deleted file mode 100644
index 069fe48ae73..00000000000
--- a/tests/language_2/factory/return_type_checked_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  factory A() => 42;
-  //             ^^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] A value of type 'int' can't be assigned to a variable of type 'A'.
-}
-
-main() {
-  Expect.throws(() => new A());
-}
diff --git a/tests/language_2/factory/runtime_test.dart b/tests/language_2/factory/runtime_test.dart
deleted file mode 100644
index d22ba6f6481..00000000000
--- a/tests/language_2/factory/runtime_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing factories.
-
-import "package:expect/expect.dart";
-
-class A {
-  factory A(n) {
-    return new A.internal(n);
-  }
-  A.internal(n) : n_ = n {}
-  var n_;
-}
-
-class B {
-  factory B.my() {
-    return new B(3);
-  }
-  B(n) : n_ = n {}
-  var n_;
-}
-
-class FactoryTest {
-  static testMain() {
-    new B.my();
-    var b = new B.my();
-    Expect.equals(3, b.n_);
-    var a = new A(5);
-    Expect.equals(5, a.n_);
-  }
-}
-
-// Test compile time error for factories with parameterized types.
-
-
-
-
-
-
-  //   Compile time error: should be LinkFactory<T> to match abstract class above
-
-
-
-
-
-
-main() {
-  FactoryTest.testMain();
-
-}
diff --git a/tests/language_2/factory/type_parameter2_test.dart b/tests/language_2/factory/type_parameter2_test.dart
deleted file mode 100644
index 9f50ff0e2b7..00000000000
--- a/tests/language_2/factory/type_parameter2_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that type variables are correctly set in instances created by factories.
-
-import 'package:expect/expect.dart';
-
-var p;
-bool done = false;
-
-class D {}
-
-abstract class I<T> {
-  factory I.name() {
-    return new C<T>.name();
-  }
-}
-
-class C<T> implements I<T> {
-  C.name() {
-    Expect.isTrue(p is T);
-    done = true;
-  }
-}
-
-main() {
-  p = new D();
-  new I<D>.name();
-  Expect.equals(true, done);
-}
diff --git a/tests/language_2/factory/type_parameter_test.dart b/tests/language_2/factory/type_parameter_test.dart
deleted file mode 100644
index 88b4ef3728c..00000000000
--- a/tests/language_2/factory/type_parameter_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  factory A.factory() {
-    return new B<T>();
-  }
-
-  A();
-
-  build() {
-    return new A<T>();
-  }
-}
-
-class B<T> extends A<T> {
-  B();
-
-  build() {
-    return new B<T>();
-  }
-}
-
-main() {
-  Expect.isTrue(new A<List>() is A<List>);
-  Expect.isTrue(new A<List>.factory() is B<List>);
-
-  // Check that we don't always return true for is checks with
-  // generics.
-  Expect.isFalse(new A<List>() is A<Set>);
-  Expect.isFalse(new A<List>.factory() is B<Set>);
-
-  Expect.isTrue(new A<List>().build() is A<List>);
-  Expect.isFalse(new A<List>().build() is A<Set>);
-
-  Expect.isTrue(new A<List>.factory().build() is B<List>);
-  Expect.isFalse(new A<List>.factory().build() is B<Set>);
-
-  Expect.isTrue(new B<List>().build() is B<List>);
-  Expect.isFalse(new B<List>().build() is B<Set>);
-}
diff --git a/tests/language_2/factory/with_type_parameters_test.dart b/tests/language_2/factory/with_type_parameters_test.dart
deleted file mode 100644
index ec7e6817dcc..00000000000
--- a/tests/language_2/factory/with_type_parameters_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Foo<T> {
-  Foo._();
-
-  factory Foo
-             <X> //# 01: syntax error
-             <X extends T> //# 02: syntax error
-             () => new Bar<T>();
-
-  factory Foo
-             <X> //# 03: syntax error
-             <X extends T> //# 04: syntax error
-             .far
-                 <X> //# 05: syntax error
-                 <X extends T> //# 06: syntax error
-                 <X>.fip //# 07: syntax error
-                 <X extends T>.fip //# 08: syntax error
-                 () => new Bar<T>();
-}
-
-class Bar<T> extends Foo<T> {
-  Bar(): super._() {}
-}
-
-main() {
-  new Foo<String>();
-  new Foo<String>.far();
-}
diff --git a/tests/language_2/field/decl_missing_var_type_runtime_test.dart b/tests/language_2/field/decl_missing_var_type_runtime_test.dart
deleted file mode 100644
index 07f9d79ceb5..00000000000
--- a/tests/language_2/field/decl_missing_var_type_runtime_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// Exercises issue 2997, missing var or type on field declarations should
-// generate a compile-time error.
-
-class A {
-
-
-}
-
-main() {
-
-}
diff --git a/tests/language_2/field/decl_missing_var_type_test.dart b/tests/language_2/field/decl_missing_var_type_test.dart
deleted file mode 100644
index 9761b69be7c..00000000000
--- a/tests/language_2/field/decl_missing_var_type_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Exercises issue 2997, missing var or type on field declarations should
-// generate a compile-time error.
-
-class A {
-  _this;
-//^^^^^
-// [analyzer] SYNTACTIC_ERROR.MISSING_CONST_FINAL_VAR_OR_TYPE
-// [cfe] Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
-  A(x) : this._this = x;
-}
-
-main() {
-  new A(0);
-}
diff --git a/tests/language_2/field/field1_test.dart b/tests/language_2/field/field1_test.dart
deleted file mode 100644
index 6969d7e9b83..00000000000
--- a/tests/language_2/field/field1_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test to catch error reporting bugs in class fields declarations.
-// Should be an error because we have setter/getter functions and fields
-// in the class.
-
-// @dart = 2.9
-
-class C {
-  var a;
-  //  ^
-  // [cfe] Conflicts with setter 'a'.
-
-  get a {
-  //  ^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-  // [cfe] 'a' is already declared in this scope.
-    return 1;
-  }
-
-  set a(int val) {
-  //  ^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-  // [cfe] Conflicts with the implicit setter of the field 'a'.
-    var x = val;
-  }
-
-  get b {
-    return 2;
-  }
-
-  set b(int val) {
-    var x = val;
-  }
-}
-
-class Field1Test {
-  static testMain() {
-    var c = new C();
-  }
-}
-
-main() {
-  Field1Test.testMain();
-}
diff --git a/tests/language_2/field/field2_test.dart b/tests/language_2/field/field2_test.dart
deleted file mode 100644
index 679e48e918d..00000000000
--- a/tests/language_2/field/field2_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test to catch error reporting bugs in class fields declarations.
-// Should be an error because we have setter/getter functions and fields
-// in the class.
-
-// @dart = 2.9
-
-class C {
-  get a {
-    return 1;
-  }
-
-  set a(int val) {
-  //  ^
-  // [cfe] Conflicts with the implicit setter of the field 'a'.
-    var x = val;
-  }
-
-  get b {
-    return 2;
-  }
-
-  set b(int val) {
-    var x = val;
-  }
-
-  var a;
-  //  ^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-  // [cfe] 'a' is already declared in this scope.
-  // [cfe] Conflicts with setter 'a'.
-}
-
-class Field2Test {
-  static testMain() {
-    var c = new C();
-  }
-}
-
-main() {
-  Field2Test.testMain();
-}
diff --git a/tests/language_2/field/field3_test.dart b/tests/language_2/field/field3_test.dart
deleted file mode 100644
index f97d31ba621..00000000000
--- a/tests/language_2/field/field3_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test to catch error reporting bugs in class fields declarations.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C {
-  // illegal: var cannot follow final
-  final var a = 0;// //# 00: syntax error
-  // illegal: final field declaration, must be initialized
-  final b; // //# 01: compile-time error
-  final c; // //# 02: compile-time error
-  final d; // //# 03: ok
-  final e; // //# 04: ok
-  final f = 0; // //# 05: ok
-
-  C() {} //# 02: continued
-  C(this.d) {} //# 03: continued
-  C(x) : e = x {} //# 04: continued
-}
-
-main() {
-  var val = new C(); //# 00: continued
-  var val = new C(); //# 01: continued
-  var val = new C(); //# 02: continued
-  var val = new C(0); //# 03: continued
-  var val = new C(0); //# 04: continued
-  var val = new C(); //# 05: continued
-}
diff --git a/tests/language_2/field/field4_test.dart b/tests/language_2/field/field4_test.dart
deleted file mode 100644
index 85517e4b7d1..00000000000
--- a/tests/language_2/field/field4_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test to catch error reporting bugs in class fields declarations.
-// Should be an error because we have a field overriding a function name.
-
-// @dart = 2.9
-
-class A {
-  int a() {
-    return 1;
-  }
-
-  var a;
-  //  ^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-  // [cfe] 'a' is already declared in this scope.
-}
-
-class Field4Test {
-  static testMain() {
-    var a = new A();
-  }
-}
-
-main() {
-  Field4Test.testMain();
-}
diff --git a/tests/language_2/field/field5_test.dart b/tests/language_2/field/field5_test.dart
deleted file mode 100644
index f8f0b9d3451..00000000000
--- a/tests/language_2/field/field5_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test to catch error reporting bugs in class fields declarations.
-// Should be an error because we have a function overriding a field name.
-
-// @dart = 2.9
-
-class A {
-  var a;
-  int a() {
-  //  ^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-  // [cfe] 'a' is already declared in this scope.
-    return 1;
-  }
-}
-
-class Field5Test {
-  static testMain() {
-    var a = new A();
-  }
-}
-
-main() {
-  Field5Test.testMain();
-}
diff --git a/tests/language_2/field/field6_test.dart b/tests/language_2/field/field6_test.dart
deleted file mode 100644
index 459844aea26..00000000000
--- a/tests/language_2/field/field6_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test to catch error reporting bugs in class fields declarations.
-// Should be an error because we have a getter overriding a function name.
-
-// @dart = 2.9
-
-class A {
-  int a() { // //# 00: ok
-    return 1;// //# 00: ok
-  }// //# 00: ok
-
-  int get a {// //# 00: compile-time error
-    return 10;// //# 00: ok
-  }// //# 00: ok
-
-  int get a {// //# 01: ok
-    return 10;// //# 01: ok
-  }// //# 01: ok
-
-  int a() {// //# 01: compile-time error
-    return 1;// //# 01: ok
-  }// //# 01: ok
-
-}
-
-class Field6Test {
-  static testMain() {
-    var a = new A();
-  }
-}
-
-main() {
-  Field6Test.testMain();
-}
diff --git a/tests/language_2/field/field_test.dart b/tests/language_2/field/field_test.dart
deleted file mode 100644
index cc8975cbd77..00000000000
--- a/tests/language_2/field/field_test.dart
+++ /dev/null
@@ -1,89 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing setting/getting of instance fields.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class First {
-  First() {}
-  var a;
-  var b;
-
-  addFields() {
-    return a + b;
-  }
-
-  setValues() {
-    a = 24;
-    b = 10;
-    return a + b;
-  }
-}
-
-class Second extends First {
-  var c;
-  get a {
-    return -12;
-  }
-
-  set b(a) {
-    a.c = 12;
-  }
-}
-
-class FieldInitializedToNull {
-  int x, y;
-
-  static void test() {
-    var f = new FieldInitializedToNull();
-    int missingArg([int x = 42]) => x;
-    Expect.isNull(f.x);
-    Expect.isNull(f.y);
-    // Regression tests for a DDC bug, where undefined gets initialized in the
-    // fields, and is incorrect recognized as a missing argument.
-    Expect.isNull(missingArg(f.x));
-    Expect.isNull(missingArg(f.y));
-  }
-}
-
-class FieldTest {
-  static one() {
-    var f = new First();
-    f.a = 3;
-    f.b = f.a;
-    Expect.equals(3, f.a);
-    Expect.equals(f.a, f.b);
-    f.b = (f.a = 10);
-    Expect.equals(10, f.a);
-    Expect.equals(10, f.b);
-    f.b = f.a = 15;
-    Expect.equals(15, f.a);
-    Expect.equals(15, f.b);
-    Expect.equals(30, f.addFields());
-    Expect.equals(34, f.setValues());
-    Expect.equals(24, f.a);
-    Expect.equals(10, f.b);
-  }
-
-  static two() {
-    // The tests below are a little cumbersome because not
-    // everything is implemented yet.
-    var o = new Second();
-    // 'a' getter is overridden, always returns -12.
-    Expect.equals(-12, o.a);
-    o.a = 2;
-    Expect.equals(-12, o.a);
-    // 'b' setter is overridden to write 12 to field 'c'.
-    o.b = o;
-    Expect.equals(12, o.c);
-  }
-}
-
-main() {
-  FieldTest.one();
-  FieldTest.two();
-  FieldInitializedToNull.test();
-}
diff --git a/tests/language_2/field/function_field_test.dart b/tests/language_2/field/function_field_test.dart
deleted file mode 100644
index 1b40df75425..00000000000
--- a/tests/language_2/field/function_field_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class A {
-  int Function(int) f;
-
-  A(this.f);
-}
-
-main() {
-  A a = A((x) => x + x);
-  Expect.equals(a.f(2), 4);
-}
diff --git a/tests/language_2/field/increment_bailout_test.dart b/tests/language_2/field/increment_bailout_test.dart
deleted file mode 100644
index 8ec50483966..00000000000
--- a/tests/language_2/field/increment_bailout_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// dart2js regression test for issue 8781.
-
-import "package:expect/expect.dart";
-
-class N {
-  var outgoing;
-  var incoming;
-  N(this.outgoing, this.incoming);
-}
-
-class A {
-  int offset = 0;
-  var list;
-  var node;
-
-  A(node)
-      : node = node,
-        list = node.outgoing;
-
-  next() {
-    // dart2js used to update [offset] twice: once in the optimized
-    // version, which would bailout to the non-optimized version
-    // because [list] is not an Array, and once in the non-optimized
-    // version.
-    var edge = list[offset++];
-    if (list == node.outgoing) {
-      list = node.incoming;
-      offset = 0;
-    } else
-      list = null;
-    return edge;
-  }
-}
-
-main() {
-  var o = new A(new N(confuse([1]), confuse([2])));
-
-  for (var i = 1; i <= 2; i++) Expect.equals(i, o.next());
-
-  Expect.equals(null, o.list);
-}
-
-// Use confuse to defeat type inferencing.
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) {
-  return x;
-}
diff --git a/tests/language_2/field/inference_test.dart b/tests/language_2/field/inference_test.dart
deleted file mode 100644
index ba4f160e52e..00000000000
--- a/tests/language_2/field/inference_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js and its SsaConstructionFieldTypes
-// phase.
-
-import "package:expect/expect.dart";
-
-class A {
-  var _field;
-  final other;
-  get field => _field;
-  A(this._field) : other = null;
-  A.fromOther(this.other) {
-    _field = other.field;
-  }
-}
-
-class B {
-  var a;
-  B() {
-    try {
-      // Defeat inlining.
-      // An inlined generative constructor call used to confuse
-      // dart2js.
-      a = new A(42);
-    } catch (e) {
-      rethrow;
-    }
-  }
-}
-
-var array = [new A(42), new B()];
-
-main() {
-  // Surround the call to [analyzeAfterB] by two [: new B() :] calls
-  // to ensure the [B] constructor will be analyzed first.
-  new B();
-  var a = analyzeAfterB();
-  new B();
-  Expect.equals(42, a._field);
-}
-
-analyzeAfterB() {
-  try {
-    // Defeat inlining.
-    return new A.fromOther(array[0]);
-  } catch (e) {
-    rethrow;
-  }
-}
diff --git a/tests/language_2/field/initialization_order_test.dart b/tests/language_2/field/initialization_order_test.dart
deleted file mode 100644
index 3c9d091ff4b..00000000000
--- a/tests/language_2/field/initialization_order_test.dart
+++ /dev/null
@@ -1,88 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that field initializers are evaluated in the right order.
-
-int counter = 0;
-
-class Mark {
-  static StringBuffer buffer;
-  Mark(value) {
-    buffer.write('$value.');
-  }
-}
-
-class OneField {
-  var a = new Mark('a');
-
-  OneField();
-
-  OneField.init() : a = new Mark('ai');
-}
-
-class TwoFields {
-  var b = new Mark('b');
-  var a = new Mark('a');
-
-  TwoFields();
-
-  TwoFields.initA() : a = new Mark('ai');
-
-  TwoFields.initB() : b = new Mark('bi');
-
-  TwoFields.initBoth()
-      : a = new Mark('ai'),
-        b = new Mark('bi');
-}
-
-class InheritOneField extends OneField {
-  var b = new Mark('b');
-
-  InheritOneField() : super();
-
-  InheritOneField.init()
-      : b = new Mark('bi'),
-        super();
-
-  InheritOneField.superWithInit() : super.init();
-
-  InheritOneField.initWithSuperInit_correctOrder()
-      : b = new Mark('bi'),
-        super.init();
-
-  InheritOneField.initWithSuperInit_incorrectOrder()
-      :
-        super.init(), //# 01: compile-time error
-        b = new Mark('bi')
-        , super.init() //# none: ok
-  ;
-}
-
-String run(callback) {
-  Mark.buffer = new StringBuffer();
-  callback();
-  return Mark.buffer.toString();
-}
-
-main() {
-  Expect.equals('a.', run(() => new OneField()));
-  Expect.equals('a.ai.', run(() => new OneField.init()));
-
-  Expect.equals('b.a.', run(() => new TwoFields()));
-  Expect.equals('b.a.ai.', run(() => new TwoFields.initA()));
-  Expect.equals('b.a.bi.', run(() => new TwoFields.initB()));
-  Expect.equals('b.a.ai.bi.', run(() => new TwoFields.initBoth()));
-
-  Expect.equals('b.a.', run(() => new InheritOneField()));
-  Expect.equals('b.bi.a.', run(() => new InheritOneField.init()));
-  Expect.equals('b.a.ai.', run(() => new InheritOneField.superWithInit()));
-  Expect.equals(
-      'b.bi.a.ai.', run(() => new InheritOneField.initWithSuperInit_correctOrder()));
-  Expect.equals(
-      'b.bi.a.ai.', run(() => new InheritOneField.initWithSuperInit_incorrectOrder()));
-}
diff --git a/tests/language_2/field/method_test.dart b/tests/language_2/field/method_test.dart
deleted file mode 100644
index b31123539c8..00000000000
--- a/tests/language_2/field/method_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test. Fields can be invoked directly if they are unqualified.
-
-// @dart = 2.9
-
-class A {
-  var foo;
-  A() {
-    foo = () {};
-  }
-  void bar() {
-    foo(); // <= foo is a field, but can still be invoked without parenthesis.
-  }
-}
-
-class FieldMethodTest {
-  static testMain() {
-    new A().bar();
-  }
-}
-
-main() {
-  FieldMethodTest.testMain();
-}
diff --git a/tests/language_2/field/optimization2_test.dart b/tests/language_2/field/optimization2_test.dart
deleted file mode 100644
index 8013e3562d4..00000000000
--- a/tests/language_2/field/optimization2_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test program to test type-based optimization on fields.
-
-class A {
-  var x;
-  A() : x = new B();
-  foo() {
-    x++;
-  }
-}
-
-class B {
-  operator +(other) => 498;
-}
-
-main() {
-  var a = new A();
-  a.foo();
-  a.foo();
-  Expect.equals(499, a.x);
-}
diff --git a/tests/language_2/field/optimization3_test.dart b/tests/language_2/field/optimization3_test.dart
deleted file mode 100644
index a18821a7933..00000000000
--- a/tests/language_2/field/optimization3_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test program to test type-based optimization on fields.
-
-class A {
-  dynamic a = 0;
-  var b = 0;
-  foo() {
-    var c = b + 27;
-    for (var i = 0; i < 1; i++) {
-      for (var j = 0; j < 1; j++) {
-        Expect.equals(50, c + 23);
-      }
-    }
-    return a > 0.2;
-  }
-
-  setA(value) {
-    a = value;
-  }
-
-  setB(value) {
-    b = value;
-  }
-
-  operator >(other) => other == 0.2;
-}
-
-main() {
-  var a = new A();
-  Expect.isFalse(a.foo());
-  a.setA(new A());
-  a.setB(0);
-  Expect.isTrue(a.foo());
-}
diff --git a/tests/language_2/field/optimization_test.dart b/tests/language_2/field/optimization_test.dart
deleted file mode 100644
index 7779e16bf77..00000000000
--- a/tests/language_2/field/optimization_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test program to test type-based optimization on fields.
-
-class A {
-  var x;
-  A() : x = 0;
-  foo() {
-    x++;
-  }
-
-  toto() {
-    x = 99;
-  }
-
-  bar(y) {
-    x = y;
-  }
-}
-
-class B {
-  operator +(other) => "ok";
-}
-
-main() {
-  var a = new A();
-  a.foo();
-  a.toto();
-  a.bar("str");
-  a.bar(new B());
-  a.foo();
-  Expect.equals("ok", a.x);
-}
diff --git a/tests/language_2/field/override2_test.dart b/tests/language_2/field/override2_test.dart
deleted file mode 100644
index 29c666a4aee..00000000000
--- a/tests/language_2/field/override2_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that we are accessing the right field in a method of a super
-// class, when that field is overridden.
-
-import "package:expect/expect.dart";
-
-class A {
-  final dynamic a = [42];
-  foo() => a[0];
-}
-
-class B extends A {
-  final dynamic a = new Map();
-}
-
-main() {
-  Expect.equals(null, new B().foo());
-  Expect.equals(42, new A().foo());
-}
diff --git a/tests/language_2/field/override3_test.dart b/tests/language_2/field/override3_test.dart
deleted file mode 100644
index ca175a7f813..00000000000
--- a/tests/language_2/field/override3_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that we report a compile-time error when a static field conflicts with
-// an inherited instance member of the same name.
-
-import "package:expect/expect.dart";
-
-class A {
-  var foo = 42; // //# 00: compile-time error
-  get foo => 42; // //# 01: compile-time error
-  foo() => 42; // //# 02: compile-time error
-  set foo(value) { } // //# 03: compile-time error
-}
-
-class B extends A {
-  static var foo = 42;
-}
-
-main() {
-  Expect.equals(42, B.foo);
-}
diff --git a/tests/language_2/field/override4_test.dart b/tests/language_2/field/override4_test.dart
deleted file mode 100644
index 4429c4c1d8e..00000000000
--- a/tests/language_2/field/override4_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that we report a compile-time error when an instance field conflicts
-// with an inherited instance method of the same name.
-
-import "package:expect/expect.dart";
-
-class A {
-  dynamic foo = 42; // //# 00: ok
-  get foo => 42; // //# 01: ok
-  foo() => 42; // //# 02: compile-time error
-  set foo(value) { } // //# 03: ok
-}
-
-class B extends A {
-  dynamic foo = 42;
-}
-
-main() {
-  Expect.equals(42, new B().foo);
-}
diff --git a/tests/language_2/field/override_optimization_test.dart b/tests/language_2/field/override_optimization_test.dart
deleted file mode 100644
index 7027a45c1bd..00000000000
--- a/tests/language_2/field/override_optimization_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  final bool flag = true;
-  final int x = 42;
-}
-
-class B extends A {
-  bool flag;
-  int x;
-}
-
-void main() {
-  A a = new B();
-  var exception;
-  try {
-    if (a.flag) {
-      Expect.fail('This should be unreachable');
-    } else {
-      Expect.fail('This should also be unreachable');
-    }
-  } on AssertionError catch (e) {
-    exception = e;
-  }
-  Expect.isTrue(exception is AssertionError);
-  Expect.throws(() => a.x + 8);
-}
diff --git a/tests/language_2/field/override_test.dart b/tests/language_2/field/override_test.dart
deleted file mode 100644
index b57f3d450ea..00000000000
--- a/tests/language_2/field/override_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test overriding of fields.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B1 extends A {}
-
-class B2 extends A {}
-
-class Super {
-  Super() : super();
-
-  B1 field;
-}
-
-class Sub extends Super {
-  Sub() : super();
-
-  // Invalid override. The type of 'Sub.field' ('() → A') isn't a subtype of
-  // 'Super.field' ('() → B1').
-  A field; // //# 00: compile-time error
-}
-
-class SubSub extends Super {
-  SubSub() : super();
-
-  // B2 not assignable to B1
-  B2 field; // //# 01: compile-time error
-}
-
-main() {
-  SubSub val1 = new SubSub();
-  val1.field = new B2(); //# 02: compile-time error
-  Expect.equals(true, val1.field is B2); //# 02: continued
-
-  Sub val2 = new Sub();
-  val2.field = new A(); //# none: compile-time error
-  Expect.equals(true, val2.field is A);
-  Expect.equals(false, val2.field is B1);
-  Expect.equals(false, val2.field is B2);
-
-  Super val3 = new Super();
-  val3.field = new B1();
-  Expect.equals(true, val3.field is B1);
-  Expect.equals(false, val3.field is B2);
-}
diff --git a/tests/language_2/field/parameter_test.dart b/tests/language_2/field/parameter_test.dart
deleted file mode 100644
index d51525a769f..00000000000
--- a/tests/language_2/field/parameter_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing setting/getting of instance fields.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  var x = 4;
-  A(this.x);
-  A.named([this.x]);
-  A.named2([this.x = 2]);
-  A.named3();
-}
-
-class B extends A {
-  B(x) : super(x + 10);
-  B.named_() : super.named();
-  B.named(x) : super.named(x + 10);
-  B.named2_() : super.named2();
-  B.named2(x) : super.named2(x + 10);
-  B.named3() : super.named3();
-}
-
-main() {
-  Expect.equals(0, new A(0).x);
-  Expect.equals(null, new A.named().x);
-  Expect.equals(1, new A.named(1).x);
-  Expect.equals(2, new A.named2().x);
-  Expect.equals(3, new A.named2(3).x);
-  Expect.equals(4, new A.named3().x);
-
-  Expect.equals(10, new B(0).x);
-  Expect.equals(null, new B.named_().x);
-  Expect.equals(11, new B.named(1).x);
-  Expect.equals(2, new B.named2_().x);
-  Expect.equals(13, new B.named2(3).x);
-  Expect.equals(4, new B.named3().x);
-}
diff --git a/tests/language_2/field/super_access2_test.dart b/tests/language_2/field/super_access2_test.dart
deleted file mode 100644
index 84c9b622ae4..00000000000
--- a/tests/language_2/field/super_access2_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that a super call to access a field in a super class is just a normal
-// field access.
-
-import "package:expect/expect.dart";
-
-class A {
-  final int y = 42;
-}
-
-class B extends A {
-  int get x => super.y;
-  void set x(val) {}
-}
-
-void main() {
-  var b = new B();
-  Expect.equals(42, b.x);
-}
diff --git a/tests/language_2/field/super_access_test.dart b/tests/language_2/field/super_access_test.dart
deleted file mode 100644
index 8951668849e..00000000000
--- a/tests/language_2/field/super_access_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that a super call to access a field in a super class is just a normal
-// field access.
-
-import "package:expect/expect.dart";
-
-class A {
-  int y;
-}
-
-class B extends A {
-  int get x => super.y;
-  void set x(val) {
-    super.y = val;
-  }
-}
-
-void main() {
-  var b = new B();
-  b.x = 42;
-  Expect.equals(42, b.x);
-}
diff --git a/tests/language_2/field/type_check2_test.dart b/tests/language_2/field/type_check2_test.dart
deleted file mode 100644
index 3189789b980..00000000000
--- a/tests/language_2/field/type_check2_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  A a;
-
-  bar(c) {
-    c.a = 2; //# 01: runtime error
-  }
-}
-
-class B {
-  int a;
-}
-
-main() {
-  new A().bar(new A()); //# 01: continued
-  new A().bar(new B());
-}
diff --git a/tests/language_2/field/type_check_runtime_test.dart b/tests/language_2/field/type_check_runtime_test.dart
deleted file mode 100644
index 97085f282a1..00000000000
--- a/tests/language_2/field/type_check_runtime_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class A {
-  int e;
-}
-
-int main() {
-
-}
diff --git a/tests/language_2/field/type_check_test.dart b/tests/language_2/field/type_check_test.dart
deleted file mode 100644
index 382bfdbdbe1..00000000000
--- a/tests/language_2/field/type_check_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  int e;
-}
-
-int main() {
-  new A().e = "String";
-  //          ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  // [cfe] A value of type 'String' can't be assigned to a variable of type 'int'.
-}
diff --git a/tests/language_2/field/wierd_name_test.dart b/tests/language_2/field/wierd_name_test.dart
deleted file mode 100644
index 1b50ebf7abd..00000000000
--- a/tests/language_2/field/wierd_name_test.dart
+++ /dev/null
@@ -1,151 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing setting/getting of instance fields.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// dart2js used to have a bug where a local called '_' in the constructor
-// shadowed the parameter named after a field. This lead to the field being
-// initialized to 'this' (a cycle) rather than the correct initializer value.
-//
-// This test is in the language tests rather than dart2js specific tests since
-// the dart2js specific tests are not run in all configurations that could
-// tickle this issue.
-
-int ii = 0;
-
-class Thing {
-  var _;
-  var $_;
-  // Extra fields to make use of local in constructor beneficial and to exhaust
-  // single-character names.
-  var a = ++ii, b = ++ii, c = ++ii, d = ++ii, e = ++ii;
-  var f = ++ii, g = ++ii, h = ++ii, i = ++ii, j = ++ii;
-  var k = ++ii, l = ++ii, m = ++ii, n = ++ii, o = ++ii;
-  var p = ++ii, q = ++ii, r = ++ii, s = ++ii, t = ++ii;
-  var u = ++ii, v = ++ii, w = ++ii, x = ++ii, y = ++ii;
-  var z = ++ii;
-  var A = ++ii, B = ++ii, C = ++ii, D = ++ii, E = ++ii;
-  var F = ++ii, G = ++ii, H = ++ii, I = ++ii, J = ++ii;
-  var K = ++ii, L = ++ii, M = ++ii, N = ++ii, O = ++ii;
-  var P = ++ii, Q = ++ii, R = ++ii, S = ++ii, T = ++ii;
-  var U = ++ii, V = ++ii, W = ++ii, X = ++ii, Y = ++ii;
-  var Z = ++ii;
-  var $ = ++ii;
-
-  var f30 = ++ii, f31 = ++ii, f32 = ++ii, f33 = ++ii, f34 = ++ii;
-  var f35 = ++ii, f36 = ++ii, f37 = ++ii, f38 = ++ii, f39 = ++ii;
-  var f40 = ++ii, f41 = ++ii, f42 = ++ii, f43 = ++ii, f44 = ++ii;
-  var f45 = ++ii, f46 = ++ii, f47 = ++ii, f48 = ++ii, f49 = ++ii;
-  var f50 = ++ii, f51 = ++ii, f52 = ++ii, f53 = ++ii, f54 = ++ii;
-  var f55 = ++ii, f56 = ++ii, f57 = ++ii, f58 = ++ii, f59 = ++ii;
-
-  @pragma('dart2js:noInline')
-  Thing(this._, this.$_);
-  toString() {
-    if (depth > 0) return 'recursion!';
-    try {
-      ++depth;
-      var sum = a +
-          b +
-          c +
-          d +
-          e +
-          f +
-          g +
-          h +
-          i +
-          j +
-          k +
-          l +
-          m +
-          n +
-          o +
-          p +
-          q +
-          r +
-          s +
-          t +
-          u +
-          v +
-          w +
-          x +
-          y +
-          z +
-          A +
-          B +
-          C +
-          D +
-          E +
-          F +
-          G +
-          H +
-          I +
-          J +
-          K +
-          L +
-          M +
-          N +
-          O +
-          P +
-          Q +
-          R +
-          S +
-          T +
-          U +
-          V +
-          W +
-          X +
-          Y +
-          Z +
-          $ +
-          f30 +
-          f31 +
-          f32 +
-          f33 +
-          f34 +
-          f35 +
-          f36 +
-          f37 +
-          f38 +
-          f39 +
-          f40 +
-          f41 +
-          f42 +
-          f43 +
-          f44 +
-          f45 +
-          f46 +
-          f47 +
-          f48 +
-          f49 +
-          f50 +
-          f51 +
-          f52 +
-          f53 +
-          f54 +
-          f55 +
-          f56 +
-          f57 +
-          f58 +
-          f59;
-      return 'Thing(${_}, ${$_}, ${sum})';
-    } finally {
-      --depth;
-    }
-  }
-
-  static int depth = 0;
-}
-
-main() {
-  var t1 = new Thing(1, 2);
-  var t2 = new Thing(3, 4);
-  var t3 = [];
-
-  Expect.equals(
-      '[Thing(1, 2, 3486), Thing(3, 4, 10375), []]', '${[t1, t2, t3]}');
-}
diff --git a/tests/language_2/final/attempt_reinitialization_runtime_test.dart b/tests/language_2/final/attempt_reinitialization_runtime_test.dart
deleted file mode 100644
index 9cc11b592a4..00000000000
--- a/tests/language_2/final/attempt_reinitialization_runtime_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Foo {
-
-
-}
-
-class CoffeeShop {
-
-
-
-}
-
-void main() {
-
-
-
-}
diff --git a/tests/language_2/final/attempt_reinitialization_test.dart b/tests/language_2/final/attempt_reinitialization_test.dart
deleted file mode 100644
index 89cd75d53fe..00000000000
--- a/tests/language_2/final/attempt_reinitialization_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Foo {
-  Foo(this.x);
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.FINAL_INITIALIZED_IN_DECLARATION_AND_CONSTRUCTOR
-  // [cfe] 'x' is a final instance variable that was initialized at the declaration.
-  final int x = 42;
-}
-
-class CoffeeShop {
-  final String shopName = "Coffee Lab";
-  CoffeeShop.name(String shopName)
-      : this.shopName = shopName;
-      //     ^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.FIELD_INITIALIZED_IN_INITIALIZER_AND_DECLARATION
-      //              ^
-      // [cfe] 'shopName' is a final instance variable that was initialized at the declaration.
-}
-
-void main() {
-  Foo f = new Foo(10);
-  CoffeeShop presidentialCoffee =
-      new CoffeeShop.name("Covfefe Lab");
-}
diff --git a/tests/language_2/final/field_initialization_order_test.dart b/tests/language_2/final/field_initialization_order_test.dart
deleted file mode 100644
index eb9cd2f88e1..00000000000
--- a/tests/language_2/final/field_initialization_order_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that initializers for final fields are evaluated in the right
-// order.
-
-int counter = 0;
-
-class Mark {
-  static StringBuffer buffer;
-  Mark(value) {
-    buffer.write('$value.');
-  }
-}
-
-class OneField {
-  final a = new Mark('a');
-  OneField();
-}
-
-class TwoFields {
-  final a = new Mark('a');
-  final b = new Mark('b');
-  TwoFields();
-}
-
-class InheritOneField extends OneField {
-  final b = new Mark('b');
-  InheritOneField();
-}
-
-class MixedFields extends OneField {
-  final b = new Mark('b');
-  var c = new Mark('c');
-  final d = new Mark('d');
-  MixedFields();
-  MixedFields.c0() : c = new Mark('cc');
-  MixedFields.c1()
-      : c = new Mark('cc'),
-        super();
-}
-
-String run(callback) {
-  Mark.buffer = new StringBuffer();
-  callback();
-  return Mark.buffer.toString();
-}
-
-main() {
-  Expect.equals('a.', run(() => new OneField()));
-  Expect.equals('a.b.', run(() => new TwoFields()));
-  Expect.equals('b.a.', run(() => new InheritOneField()));
-
-  Expect.equals('b.c.d.a.', run(() => new MixedFields()));
-  Expect.equals('b.c.d.cc.a.', run(() => new MixedFields.c0()));
-  Expect.equals('b.c.d.cc.a.', run(() => new MixedFields.c1()));
-}
diff --git a/tests/language_2/final/field_override_test.dart b/tests/language_2/final/field_override_test.dart
deleted file mode 100644
index d17629fe6e1..00000000000
--- a/tests/language_2/final/field_override_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  int _x = 42;
-  void set x(int val) {
-    _x = val;
-  }
-
-  int get x => _x;
-}
-
-class B extends A {
-  final x = 3;
-  // we can still get to the super property
-  int get y => _x;
-}
-
-void main() {
-  var b = new B();
-  Expect.equals(3, b.x);
-
-  b.x = 21;
-  Expect.equals(3, b.x);
-  Expect.equals(21, b.y);
-}
diff --git a/tests/language_2/final/for_in_variable_test.dart b/tests/language_2/final/for_in_variable_test.dart
deleted file mode 100644
index 7fb8aa63ac6..00000000000
--- a/tests/language_2/final/for_in_variable_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  for (final i in [1, 2, 3]) {
-    i = 4;
-//  ^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_LOCAL
-// [cfe] Can't assign to the final variable 'i'.
-  }
-}
diff --git a/tests/language_2/final/initializer_instance_reference_test.dart b/tests/language_2/final/initializer_instance_reference_test.dart
deleted file mode 100644
index be02d1ec0a6..00000000000
--- a/tests/language_2/final/initializer_instance_reference_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart2js regression test. Error in initializer might be report with the wrong
-// current element.
-
-class C {
-  const C();
-//^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_CONSTRUCTOR_WITH_FIELD_INITIALIZED_BY_NON_CONST
-
-  final x = 1;
-  final y = x;
-  //        ^
-  // [analyzer] COMPILE_TIME_ERROR.IMPLICIT_THIS_REFERENCE_IN_INITIALIZER
-  // [cfe] Can't access 'this' in a field initializer to read 'x'.
-  // [cfe] Not a constant expression.
-}
-
-main() {
-  const C().y;
-}
diff --git a/tests/language_2/final/is_not_const_test.dart b/tests/language_2/final/is_not_const_test.dart
deleted file mode 100644
index e00c708980a..00000000000
--- a/tests/language_2/final/is_not_const_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-final F0 = 42;
-const C0 = F0;
-//         ^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
-// [cfe] Constant evaluation error:
-// [cfe] Not a constant expression.
-
-main() {
-  Expect.equals(42, F0);
-  Expect.equals(42, C0);
-}
diff --git a/tests/language_2/final/param_test.dart b/tests/language_2/final/param_test.dart
deleted file mode 100644
index 3711e780c4d..00000000000
--- a/tests/language_2/final/param_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Disallow assignment of parameters marked as final.
-
-// @dart = 2.9
-
-class A {
-  static void test(final x) {
-    x = 2;
-//  ^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_LOCAL
-// [cfe] Can't assign to the final variable 'x'.
-  }
-}
-
-main() {
-  A.test(1);
-}
diff --git a/tests/language_2/final/super_field_set_test.dart b/tests/language_2/final/super_field_set_test.dart
deleted file mode 100644
index 8cd8156637f..00000000000
--- a/tests/language_2/final/super_field_set_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class SuperClass {
-  final field = 0;
-  noSuchMethod(_) => 42;
-}
-
-class Class extends SuperClass {
-  m() {
-    super.field = 87;
-    //    ^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_SUPER_MEMBER
-    // [cfe] Superclass has no setter named 'field'.
-  }
-}
-
-main() {
-  new Class().m();
-}
diff --git a/tests/language_2/final/syntax_test.dart b/tests/language_2/final/syntax_test.dart
deleted file mode 100644
index c83d57381a8..00000000000
--- a/tests/language_2/final/syntax_test.dart
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  final f0 = 42;
-  final f1; //# 01: compile-time error
-  final int f2 = 87;
-  final int f3; //# 02: compile-time error
-  Expect.equals(42, f0);
-  Expect.equals(87, f2);
-
-  Expect.equals(42, F0);
-  Expect.equals(null, F1); //# 03: continued
-  Expect.equals(87, F2);
-  Expect.equals(null, F3); //# 04: continued
-
-  Expect.isTrue(P0 is Point);
-  Expect.isTrue(P1 is int);
-  Expect.isTrue(P2 is Point);
-  Expect.isTrue(P3 is int);
-
-  Expect.isTrue(A0 is int);
-  Expect.isTrue(A1 is int);
-  Expect.isTrue(A2 is int); //# 08: runtime error
-  Expect.isTrue(A3 is int); //# 08: continued
-
-  Expect.isTrue(C0.X is C1);
-  Expect.isTrue(C0.X.x is C1); //# 09: compile-time error
-
-  Expect.equals("Hello 42", B2);
-  Expect.equals("42Hello", B3); //# 10: compile-time error
-}
-
-final F0 = 42;
-final F1; //                //# 03: syntax error
-final int F2 = 87;
-final int F3; //            //# 04: syntax error
-
-class Point {
-  final x, y;
-  const Point(this.x, this.y);
-  operator +(int other) => x;
-}
-
-// Check that compile time expressions can include invocations of
-// user-defined final constructors.
-final P0 = const Point(0, 0);
-final P1 = const Point(0, 0) + 1;
-final P2 = new Point(0, 0);
-final P3 = new Point(0, 0) + 1;
-
-// Check that we cannot have cyclic references in compile time
-// expressions.
-final A0 = 42;
-final A1 = A0 + 1;
-final dynamic A2 = A3 + 1; //# 08: continued
-final dynamic A3 = A2 + 1; //# 08: continued
-
-class C0 {
-  static final X = const C1();
-}
-
-class C1 {
-  const C1()
-      : x = C0.X //# 09: continued
-  ;
-  final x = null;
-}
-
-// Check that sub-expressions of binary + are numeric.
-final B0 = 42;
-final B1 = "Hello";
-final B2 = "$B1 $B0";
-final B3 = B0 + B1; //# 10: continued
diff --git a/tests/language_2/final/used_in_try_test.dart b/tests/language_2/final/used_in_try_test.dart
deleted file mode 100644
index 3415c92c3eb..00000000000
--- a/tests/language_2/final/used_in_try_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  while (true) {
-    final a = 'fff'.substring(1, 2);
-    try {
-      Expect.equals('f', a);
-    } catch (e) {
-      rethrow;
-    }
-    break;
-  }
-}
diff --git a/tests/language_2/final/variable_assignment_runtime_test.dart b/tests/language_2/final/variable_assignment_runtime_test.dart
deleted file mode 100644
index b4d4253e8e8..00000000000
--- a/tests/language_2/final/variable_assignment_runtime_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test to make sure we catch assignments to final local variables.
-
-main() {
-  final x = 30;
-
-
-
-
-}
diff --git a/tests/language_2/final/variable_assignment_test.dart b/tests/language_2/final/variable_assignment_test.dart
deleted file mode 100644
index 9586f487668..00000000000
--- a/tests/language_2/final/variable_assignment_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test to make sure we catch assignments to final local variables.
-
-main() {
-  final x = 30;
-  x = 0;
-//^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_LOCAL
-// [cfe] Can't assign to the final variable 'x'.
-  x += 1;
-//^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_LOCAL
-// [cfe] Can't assign to the final variable 'x'.
-  ++x;
-  //^
-  // [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_LOCAL
-  // [cfe] Can't assign to the final variable 'x'.
-  x++;
-//^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_LOCAL
-// [cfe] Can't assign to the final variable 'x'.
-}
diff --git a/tests/language_2/fixed_size_int/README.md b/tests/language_2/fixed_size_int/README.md
deleted file mode 100644
index 6b768e9dc51..00000000000
--- a/tests/language_2/fixed_size_int/README.md
+++ /dev/null
@@ -1,7 +0,0 @@
-# Feature tests for fixed size integers
-
-This directory was created in order to hold tests pertaining to the Dart
-feature which changes the `int` type to have a fixed-size representation
-(as opposed to implicitly transitioning into an arbitrary bigint
-representation when needed). For more details, please check the
-[informal specification](https://github.com/dart-lang/sdk/blob/main/docs/language/informal/int64.md).
diff --git a/tests/language_2/function/apply_generic2_test.dart b/tests/language_2/function/apply_generic2_test.dart
deleted file mode 100644
index 8bfaa55ee0d..00000000000
--- a/tests/language_2/function/apply_generic2_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-makeFn() {
-  return <T extends num>({T a1, T a2, T a3, T a4, T a5}) {
-    return <T>[a1, a2, a3, a4, a5];
-  };
-}
-
-staticFn<T extends num>({T a1, T a2, T a3, T a4, T a5, T xx}) {
-  return <T>[a1, a2, a3, a4, a5, xx];
-}
-
-class CCC {
-  memberFn<T extends num>({T a1, T a2, T a3, T a4, T a5, T yy}) {
-    return <T>[a1, a2, a3, a4, a5, yy];
-  }
-}
-
-check(a, b) {
-  print('a: $a\nb: $b');
-  Expect.equals(a.toString(), b.toString());
-}
-
-main() {
-  check('[null, 33, null, 11, 22, null]',
-      Function.apply(new CCC().memberFn, [], {#a4: 11, #a5: 22, #a2: 33}));
-
-  Expect.throwsTypeError(
-      () => Function.apply(new CCC().memberFn, [], {#a3: 'hi'}));
-
-  check('[11, 22, 33, null, null]',
-      Function.apply(makeFn(), [], {#a1: 11, #a2: 22, #a3: 33}));
-
-  check('[null, 33, null, 11, 22]',
-      Function.apply(makeFn(), [], {#a4: 11, #a5: 22, #a2: 33}));
-
-  Expect.throwsTypeError(() => Function.apply(makeFn(), [], {#a3: 'hi'}));
-
-  check('[null, 33, null, 11, 22, null]',
-      Function.apply(staticFn, [], {#a4: 11, #a5: 22, #a2: 33}));
-
-  Expect.throwsTypeError(() => Function.apply(staticFn, [], {#a3: 'hi'}));
-}
diff --git a/tests/language_2/function/apply_generic_test.dart b/tests/language_2/function/apply_generic_test.dart
deleted file mode 100644
index c5af4c1184b..00000000000
--- a/tests/language_2/function/apply_generic_test.dart
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-List<T> staticFn<T>(
-    [T a1, T a2, T a3, T a4, T a5, T a6, T a7, T a8, T a9, T a10]) {
-  return <T>[a1, a2, a3, a4, a5, a6, a7, a8, a9, a10];
-}
-
-class C<CT> {
-  List<T> memberFn<T>(
-      [T a1, T a2, T a3, T a4, T a5, T a6, T a7, T a8, T a9, T a10]) {
-    return <T>[a1, a2, a3, a4, a5, a6, a7, a8, a9, a10];
-  }
-
-  // Intercepted, e.g. on JSArray.
-  List<T> map<T>(
-      [T a1, T a2, T a3, T a4, T a5, T a6, T a7, T a8, T a9, T a10]) {
-    return <T>[a1, a2, a3, a4, a5, a6, a7, a8, a9, a10];
-  }
-}
-
-check(a, b) {
-  print('a: $a\nb: $b');
-  Expect.equals(a.toString(), b.toString());
-}
-
-main() {
-  check('[1, 2, 3, null, null, null, null, null, null, null]',
-      Function.apply(staticFn, [1, 2, 3]));
-
-  check('[1, 2, 3, 4, null, null, null, null, null, null]',
-      Function.apply(staticFn, [1, 2, 3, 4]));
-
-  check('[1, 2, 3, 4, 5, 6, 7, null, null, null]',
-      Function.apply(staticFn, [1, 2, 3, 4, 5, 6, 7]));
-
-  var o = new C<num>();
-  dynamic memberFn1 = o.map;
-
-  check('[1, 2, 3, null, null, null, null, null, null, null]',
-      Function.apply(memberFn1, [1, 2, 3]));
-
-  check('[1, 2, 3, 4, null, null, null, null, null, null]',
-      Function.apply(memberFn1, [1, 2, 3, 4]));
-
-  check('[1, 2, 3, 4, 5, 6, 7, null, null, null]',
-      Function.apply(memberFn1, [1, 2, 3, 4, 5, 6, 7]));
-
-  dynamic memberFn2 = o.memberFn;
-
-  check('[1, 2, 3, null, null, null, null, null, null, null]',
-      Function.apply(memberFn2, [1, 2, 3]));
-
-  check('[1, 2, 3, 4, null, null, null, null, null, null]',
-      Function.apply(memberFn2, [1, 2, 3, 4]));
-
-  check('[1, 2, 3, 4, 5, 6, 7, null, null, null]',
-      Function.apply(memberFn2, [1, 2, 3, 4, 5, 6, 7]));
-
-  // TODO(sra): Apply of instantiations
-}
diff --git a/tests/language_2/function/argument_test.dart b/tests/language_2/function/argument_test.dart
deleted file mode 100644
index e07f5a750a5..00000000000
--- a/tests/language_2/function/argument_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for function passing.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class FunctionArgumentTest {
-  static testMe(Function f) {
-    return f();
-  }
-
-  static void testMain() {
-    Expect.equals(42, testMe(() {
-      return 42;
-    }));
-  }
-}
-
-main() {
-  FunctionArgumentTest.testMain();
-}
diff --git a/tests/language_2/function/call_generic_test.dart b/tests/language_2/function/call_generic_test.dart
deleted file mode 100644
index f904806cce9..00000000000
--- a/tests/language_2/function/call_generic_test.dart
+++ /dev/null
@@ -1,85 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// dart2jsOptions=-Ddart.isdart2js=true
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-@pragma('dart2js:noInline')
-List staticFn<T>([T a1, T a2, T a3, T a4, T a5]) => [T, a1, a2, a3, a4, a5];
-
-class C {
-  @pragma('dart2js:noInline')
-  List memberFn<T>([T a1, T a2, T a3, T a4, T a5]) => [T, a1, a2, a3, a4, a5];
-
-  @pragma('dart2js:noInline')
-  // 'map' is implemented by native iterables. On dart2js, 'map' has interceptor
-  // calling convention.
-  List map<T>([T a1, T a2, T a3, T a4, T a5]) => [T, a1, a2, a3, a4, a5];
-}
-
-check(expected, actual) {
-  print('a:  $expected');
-  print('b:  $actual');
-  if (((actual[0] == Object && expected[0] == dynamic) ||
-          (actual[0] == dynamic && expected[0] == Object)) &&
-      !const bool.fromEnvironment('dart.isdart2js')) {
-    // TODO(32483): dartdevk sometimes defaults type to 'Object' when 'dynamic'
-    // is required. Remove this hack when fixed.
-    // TODO(31581): dart2js needs instantiate-to-bound to generic 'dynamic'
-    // instead of 'Object'.
-    actual = actual.toList()..[0] = expected[0];
-    print('b*: $actual');
-  }
-  Expect.equals(expected.toString(), actual.toString());
-}
-
-main() {
-  check([dynamic, 1, 2, 3, null, null], staticFn(1 as dynamic, 2, 3));
-
-  check([Object, 'Z', 2, 4, null, null], staticFn('Z', 2, 4));
-
-  check([int, 3, 2, 1, null, null], staticFn(3, 2, 1));
-
-  dynamic f1 = staticFn;
-
-  check([dynamic, 4, 2, 3, null, null], f1(4 as dynamic, 2, 3));
-
-  check([dynamic, 'Q', 2, 3, null, null], f1('Q', 2, 3));
-
-  check([dynamic, 6, 2, 3, null, null], f1(6, 2, 3));
-
-  check([int, 7, 2, null, null, null], f1<int>(7, 2));
-
-  var c = new C();
-
-  check([dynamic, 8, 2, 3, null, null], c.memberFn(8 as dynamic, 2, 3));
-
-  check([Object, 'A', 2, 3, null, null], c.memberFn('A', 2, 3));
-
-  check([int, 9, 2, 3, null, null], c.memberFn<int>(9, 2, 3));
-
-  check([dynamic, 10, 2, 3, null, null], c.map(10 as dynamic, 2, 3));
-
-  check([Object, 'B', 2, 3, null, null], c.map('B', 2, 3));
-
-  check([int, 11, 2, 3, null, null], c.map(11, 2, 3));
-
-  dynamic o = new C();
-
-  check([dynamic, 12, 2, 3, null, null], o.memberFn(12 as dynamic, 2, 3));
-
-  check([dynamic, 'C', 2, 3, null, null], o.memberFn('C', 2, 3));
-
-  check([int, 13, 2, null, null, null], o.memberFn<int>(13, 2));
-
-  check([dynamic, 14, 2, 3, null, null], o.map(14 as dynamic, 2, 3));
-
-  check([dynamic, 'D', 2, 3, null, null], o.map('D', 2, 3));
-
-  check([int, 15, null, null, null, null], o.map<int>(15));
-
-  check([int, 16, 2, 3, 4, null], o.map<int>(16, 2, 3, 4));
-}
diff --git a/tests/language_2/function/field_test.dart b/tests/language_2/function/field_test.dart
deleted file mode 100644
index 2be3bae63af..00000000000
--- a/tests/language_2/function/field_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--fatal-type-errors --enable_type_checks
-//
-// Test of calling Function, which is field of some class.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Wrapper {
-  Function f;
-}
-
-main() {
-  Wrapper w = new Wrapper();
-  w.f = () {
-    return 42;
-  };
-  Expect.equals(42, w.f());
-}
diff --git a/tests/language_2/function/function_test.dart b/tests/language_2/function/function_test.dart
deleted file mode 100644
index a08cd05571f..00000000000
--- a/tests/language_2/function/function_test.dart
+++ /dev/null
@@ -1,380 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Tests function statements and expressions.
-
-class Bug4089219 {
-  int x;
-  var f;
-
-  Bug4089219(int i) : this.x = i {
-    f = () => x;
-  }
-}
-
-class Bug4342163 {
-  final m;
-  Bug4342163(int a) : this.m = (() => a) {}
-}
-
-class StaticFunctionDef {
-  static const int one = 1;
-  static var fn1;
-  static var fn2;
-  static var fn3;
-
-  static init() {
-    fn1 = () {
-      return one;
-    };
-    fn2 = () {
-      return (() {
-        return one;
-      })();
-    };
-    fn3 = () {
-      final local = 1;
-      return (() {
-        return local;
-      })();
-    };
-  }
-}
-
-class A {
-  var ma;
-  A(a) {
-    ma = a;
-  }
-}
-
-class B1 extends A {
-  final mfn;
-  B1(int a)
-      : this.mfn = (() {
-          return a;
-        }),
-        super(a);
-}
-
-class B2 extends A {
-  final mfn;
-  B2(int a)
-      : this.mfn = (() {
-          return a;
-        }),
-        super(2);
-}
-
-class B3 extends A {
-  final mfn;
-  B3(int a)
-      : this.mfn = (() {
-          return a;
-        }),
-        super(() {
-          return a;
-        });
-}
-
-typedef void Fisk();
-
-class FunctionTest {
-  FunctionTest() {}
-
-  static void testMain() {
-    var test = new FunctionTest();
-    test.testForEach();
-    test.testVarOrder1();
-    test.testVarOrder2();
-    test.testLexicalClosureRef1();
-    test.testLexicalClosureRef2();
-    test.testLexicalClosureRef3();
-    test.testLexicalClosureRef4();
-    test.testLexicalClosureRef5();
-    test.testDefaultParametersOrder();
-    test.testParametersOrder();
-    test.testFunctionDefaults1();
-    test.testFunctionDefaults2();
-    test.testEscapingFunctions();
-    test.testThisBinding();
-    test.testFnBindingInStatics();
-    test.testFnBindingInInitLists();
-    test.testSubclassConstructorScopeAlias();
-  }
-
-  void testSubclassConstructorScopeAlias() {
-    var b1 = new B1(10);
-    Expect.equals(10, (b1.mfn)());
-    Expect.equals(10, b1.ma);
-
-    var b2 = new B2(11);
-    Expect.equals(11, (b2.mfn)());
-    Expect.equals(2, b2.ma);
-
-    var b3 = new B3(12);
-    Expect.equals(12, (b3.mfn)());
-    Expect.equals(12, (b3.ma)());
-  }
-
-  void testFnBindingInInitLists() {
-    Expect.equals(1, (new Bug4342163(1).m)());
-  }
-
-  void testFnBindingInStatics() {
-    StaticFunctionDef.init();
-    Expect.equals(1, ((StaticFunctionDef.fn1)()));
-    Expect.equals(1, ((StaticFunctionDef.fn2)()));
-    Expect.equals(1, ((StaticFunctionDef.fn3)()));
-  }
-
-  Fisk testReturnVoidFunction() {
-    void f() {}
-    Fisk x = f;
-    return f;
-  }
-
-  void testVarOrder1() {
-    var a = 0, b = a++, c = a++;
-
-    Expect.equals(a, 2);
-    Expect.equals(b, 0);
-    Expect.equals(c, 1);
-  }
-
-  void testVarOrder2() {
-    var a = 0;
-    f() {
-      return a++;
-    }
-
-    ;
-    var b = f(), c = f();
-
-    Expect.equals(a, 2);
-    Expect.equals(b, 0);
-    Expect.equals(c, 1);
-  }
-
-  void testLexicalClosureRef1() {
-    var a = 1;
-    var f, g;
-    {
-      var b = 2;
-      f = () {
-        return b - a;
-      };
-    }
-
-    {
-      var b = 3;
-      g = () {
-        return b - a;
-      };
-    }
-    Expect.equals(1, f());
-    Expect.equals(2, g());
-  }
-
-  void testLexicalClosureRef2() {
-    var a = 1;
-    var f, g;
-    {
-      var b = 2;
-      f = () {
-        return (() {
-          return b - a;
-        })();
-      };
-    }
-
-    {
-      var b = 3;
-      g = () {
-        return (() {
-          return b - a;
-        })();
-      };
-    }
-    Expect.equals(1, f());
-    Expect.equals(2, g());
-  }
-
-  void testLexicalClosureRef3() {
-    var a = [];
-    for (int i = 0; i < 10; i++) {
-      var x = i;
-      a.add(() {
-        return x;
-      });
-    }
-
-    var sum = 0;
-    for (int i = 0; i < a.length; i++) {
-      sum += (a[i])();
-    }
-
-    Expect.equals(45, sum);
-  }
-
-  void testLexicalClosureRef5() {
-    {
-      var a;
-      Expect.equals(null, a);
-      a = 1;
-      Expect.equals(1, a);
-    }
-
-    {
-      var a;
-      Expect.equals(null, a);
-      a = 1;
-      Expect.equals(1, a);
-    }
-  }
-
-  // Make sure labels are preserved, and a second 'i' does influence the first.
-  void testLexicalClosureRef4() {
-    var a = [];
-    x:
-    for (int i = 0; i < 10; i++) {
-      a.add(() {
-        return i;
-      });
-      continue x;
-    }
-
-    var sum = 0;
-    for (int i = 0; i < a.length; i++) {
-      sum += (a[i])();
-    }
-
-    Expect.equals(45, sum);
-  }
-
-  int tempField;
-
-  void testForEach() {
-    List<int> vals = [1, 2, 3];
-    int total = 0;
-    vals.forEach((int v) {
-      total += v;
-    });
-    Expect.equals(6, total);
-  }
-
-  void testDefaultParametersOrder() {
-    f([a = 1, b = 3]) {
-      return a - b;
-    }
-
-    Expect.equals(-2, f());
-  }
-
-  void testParametersOrder() {
-    f(a, b) {
-      return a - b;
-    }
-
-    Expect.equals(-2, f(1, 3));
-  }
-
-  void testFunctionDefaults1() {
-    // TODO(jimhug): This return null shouldn't be necessary.
-    f() {
-      return null;
-    }
-
-    ;
-    (([a = 10]) {
-      Expect.equals(10, a);
-    })();
-    ((a, [b = 10]) {
-      Expect.equals(10, b);
-    })(1);
-    (([a = 10]) {
-      Expect.equals(null, a);
-    })(f());
-    // FAILS: (([a = 10]) { Expect.equals(null ,a); })( f() );
-  }
-
-  void testFunctionDefaults2() {
-    Expect.equals(10, helperFunctionDefaults2());
-    Expect.equals(1, helperFunctionDefaults2(1));
-  }
-
-  num helperFunctionDefaults2([a = 10]) {
-    return (() {
-      return a;
-    })();
-  }
-
-  void testEscapingFunctions() {
-    f() {
-      return 42;
-    }
-
-    ;
-    (() {
-      Expect.equals(42, f());
-    })();
-    var o = new Bug4089219(42);
-    Expect.equals(42, (o.f)());
-  }
-
-  void testThisBinding() {
-    Expect.equals(this, () {
-      return this;
-    }());
-  }
-}
-
-typedef void Foo<A, B>(A a, B b);
-
-class Bar<A, B> {
-  Foo<A, B> field;
-  Bar(A a, B b) : this.field = ((A a1, B b2) {}) {
-    field(a, b);
-  }
-}
-
-typedef UntypedFunction(arg);
-typedef UntypedFunction2(arg);
-
-class UseFunctionTypes {
-  void test() {
-    Function f = null;
-    UntypedFunction uf = null;
-    UntypedFunction2 uf2 = null;
-    Foo foo = null;
-    Foo<int, String> fooIntString = null;
-    Foo<Object, Object> fooObjectObject = null;
-
-    f = uf;
-    f = uf2;
-    f = foo;
-    f = fooIntString;
-
-    uf = f;
-    uf2 = f;
-    foo = f;
-    fooIntString = f;
-
-    fooIntString = foo;
-
-    foo = fooObjectObject;
-    fooObjectObject = foo;
-
-    uf = uf2;
-    uf2 = uf;
-  }
-}
-
-main() {
-  FunctionTest.testMain();
-}
diff --git a/tests/language_2/function/getter_test.dart b/tests/language_2/function/getter_test.dart
deleted file mode 100644
index 81a70a975ee..00000000000
--- a/tests/language_2/function/getter_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  a() => 42;
-}
-
-main() {
-  Expect.equals(new A().a(), (new A().a)());
-}
diff --git a/tests/language_2/function/literals2_test.dart b/tests/language_2/function/literals2_test.dart
deleted file mode 100644
index 0c99d59e4a8..00000000000
--- a/tests/language_2/function/literals2_test.dart
+++ /dev/null
@@ -1,115 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test for new function type alias.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class FunctionLiteralsTest {
-  static void testMain() {
-    f(x) {
-      return x * 2;
-    }
-
-    f(42); // make sure it is parsed as a function call
-    Expect.equals(20, f(10));
-
-    int g(x) {
-      return x * 2;
-    }
-
-    g(42); // make sure it is parsed as a function call
-    Expect.equals(20, g(10));
-
-    h(x) {
-      return x * 2;
-    }
-
-    h(42); // make sure it is parsed as a function call
-    Expect.equals(20, h(10));
-
-    dynamic a = (x) {
-      return x + 2;
-    };
-    Expect.equals(7, a(5));
-
-    Expect.equals(
-        10,
-        apply((k) {
-          return k << 1;
-        }, 5));
-    Expect.equals(20, apply((k) => k << 1, 10));
-
-    a = new A(3);
-    Expect.equals(-1, a.f);
-    Expect.equals(-3, a.f2);
-
-    a = new A.n(5);
-    Expect.equals(-2, a.f);
-    Expect.equals(2, a.f2);
-
-    Expect.equals(true, isOdd(5));
-    Expect.equals(false, isOdd(8));
-
-    var b = new B(10);
-    Expect.equals(10, b.n);
-    Expect.equals(100, (b.f)(10));
-
-    b = new B.withZ(10);
-    Expect.equals(10, b.n);
-    Expect.equals(101, (b.f)(10));
-
-    var c = new C(5);
-    Expect.equals("2*x is 10", c.s);
-
-    int x = 0;
-    int y = 1;
-    // make sure this isn't parsed as a generic type
-    Expect.isTrue(x < y, "foo");
-  }
-}
-
-apply(f, n) {
-  return f(n);
-}
-
-bool isOdd(b) => b % 2 == 1;
-
-class A {
-  int f;
-  int f2;
-  A(p) : f = apply((j) => 2 - j, p) {
-    /* constr. body */
-    f2 = -p;
-  }
-  A.n(p) : f = 1 + apply((j) => 2 - j, p) {
-    /* constr. body */
-    f2 = -f;
-  }
-}
-
-class B {
-  var f;
-  int n;
-  B(z) : f = ((x) => x * x) {
-    n = z;
-  }
-  B.withZ(z)
-      : f = ((x) {
-          return x * x + 1;
-        }) {
-    n = z;
-  }
-}
-
-class C {
-  String s;
-  C(x) : s = "2*x is ${() { return 2*x; }()}";
-}
-
-main() {
-  FunctionLiteralsTest.testMain();
-}
diff --git a/tests/language_2/function/literals_test.dart b/tests/language_2/function/literals_test.dart
deleted file mode 100644
index f3eee9e40dd..00000000000
--- a/tests/language_2/function/literals_test.dart
+++ /dev/null
@@ -1,114 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-/**
- * Test various forms of function literals.
- */
-typedef int IntFunc(int);
-
-class FunctionLiteralsTest {
-  static void checkIntFunction<T>(expected, int f(T x), arg) {
-    Expect.equals(expected, f(arg));
-  }
-
-  static void checkIntFuncFunction<T>(expected, IntFunc f(T x), arg) {
-    Expect.equals(expected, f(arg)(arg));
-  }
-
-  int func1(int x) => x;
-
-  int func2(x) => x;
-
-  int func3(int x) {
-    return x;
-  }
-
-  int func4(x) {
-    return x;
-  }
-
-  FunctionLiteralsTest() {}
-
-  static void testMain() {
-    var test = new FunctionLiteralsTest();
-    test.testArrow();
-    test.testArrowArrow();
-    test.testArrowBlock();
-    test.testBlock();
-    test.testBlockArrow();
-    test.testBlockBlock();
-    test.testFunctionRef();
-  }
-
-  void testArrow() {
-    checkIntFunction(42, (x) => x, 42);
-    checkIntFunction(42, (dynamic x) => x, 42);
-  }
-
-  void testArrowArrow() {
-    checkIntFuncFunction(84, (x) => (y) => x + y, 42);
-    checkIntFuncFunction(84, (dynamic x) => (y) => x + y, 42);
-  }
-
-  void testArrowBlock() {
-    checkIntFuncFunction(
-        84,
-        (x) => (y) {
-              return x + y;
-            },
-        42);
-    checkIntFuncFunction(
-        84,
-        (int x) => (y) {
-              return x + y;
-            },
-        42);
-  }
-
-  void testBlock() {
-    checkIntFunction(42, (x) {
-      return x;
-    }, 42);
-    checkIntFunction(42, (int x) {
-      return x;
-    }, 42);
-  }
-
-  void testBlockArrow() {
-    checkIntFuncFunction(84, (x) {
-      return (y) => x + y;
-    }, 42);
-    checkIntFuncFunction(84, (int x) {
-      return (y) => (x + y) as int;
-    }, 42);
-  }
-
-  void testBlockBlock() {
-    checkIntFuncFunction(84, (x) {
-      return (y) {
-        return x + y;
-      };
-    }, 42);
-    checkIntFuncFunction(84, (int x) {
-      return (y) {
-        return x + y;
-      };
-    }, 42);
-  }
-
-  void testFunctionRef() {
-    checkIntFunction(42, func1, 42);
-    checkIntFunction(42, func2, 42);
-    checkIntFunction(42, func3, 42);
-    checkIntFunction(42, func4, 42);
-  }
-}
-
-main() {
-  FunctionLiteralsTest.testMain();
-}
diff --git a/tests/language_2/function/local2_test.dart b/tests/language_2/function/local2_test.dart
deleted file mode 100644
index e7045dae244..00000000000
--- a/tests/language_2/function/local2_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program testing closures.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-typedef T F<T>(T t);
-
-class Parameterized<T> {
-  Parameterized() {}
-  T mul3(F<T> f, T t) {
-    return (3 as dynamic) * f(t);
-  }
-
-  T test(T t) {
-    return mul3((T t) {
-      return (3 as dynamic) * t;
-    }, t);
-  }
-}
-
-class LocalFunction2Test {
-  static int f(int n) {
-    int a = 0;
-    var g = (int n) {
-      a += n;
-      return a;
-    };
-    var h = (int n) {
-      a += 10 * n;
-      return a;
-    };
-    return g(n) + h(n);
-  }
-
-  static testMain() {
-    Expect.equals(3 + 33, f(3));
-    Expect.equals(9.0, new Parameterized<double>().test(1.0));
-  }
-}
-
-main() {
-  LocalFunction2Test.testMain();
-}
diff --git a/tests/language_2/function/local3_test.dart b/tests/language_2/function/local3_test.dart
deleted file mode 100644
index 88d2878a5ca..00000000000
--- a/tests/language_2/function/local3_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program testing closures.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class LocalFunction3Test {
-  static testExceptions() {
-    dynamic f = (int n) {
-      return n + 1;
-    };
-    Expect.equals(true, f is Object);
-    bool exception_caught = false;
-    try {
-      f.xyz(0);
-    } on NoSuchMethodError {
-      exception_caught = true;
-    }
-    Expect.equals(true, exception_caught);
-    exception_caught = false;
-    String f_string;
-    try {
-      f_string = f.toString();
-    } on NoSuchMethodError  {
-      exception_caught = true;
-    }
-    Expect.equals(false, exception_caught);
-    Expect.equals(true, f_string.startsWith("Closure"));
-  }
-
-  static testMain() {
-    testExceptions();
-  }
-}
-
-main() {
-  LocalFunction3Test.testMain();
-}
diff --git a/tests/language_2/function/local_function_test.dart b/tests/language_2/function/local_function_test.dart
deleted file mode 100644
index a48f0df2375..00000000000
--- a/tests/language_2/function/local_function_test.dart
+++ /dev/null
@@ -1,229 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program testing closures.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class LocalFunctionTest {
-  LocalFunctionTest()
-      : field1 = 100,
-        field2_ = 200 {}
-  static int f(int n) {
-    int a = 0;
-    g(int m) {
-      a = 3 * n + m + 1; // Capture parameter n and local a.
-      return a;
-    }
-
-    var b = g(n);
-    return a + b;
-  }
-
-  static int h(int n) {
-    k(int n) {
-      var a = new List<dynamic>.filled(n, null);
-      var b = new List<dynamic>.filled(n, null);
-      int i;
-      for (i = 0; i < n; i++) {
-        var j = i;
-        a[i] = () => i; // Captured i is always n.
-        b[i] = () => j; // Captured j varies from 0 to n-1.
-      }
-      var a_sum = 0;
-      var b_sum = 0;
-      for (int i = 0; i < n; i++) {
-        a_sum += a[i]();
-        b_sum += b[i]();
-      }
-      return a_sum + b_sum;
-    }
-
-    return k(n);
-  }
-
-  static int h2(int n) {
-    k(int n) {
-      var a = new List<dynamic>.filled(n, null);
-      var b = new List<dynamic>.filled(n, null);
-      for (int i = 0; i < n; i++) {
-        var j = i;
-        a[i] = () => i; // Captured i varies from 0 to n-1.
-        b[i] = () => j; // Captured j varies from 0 to n-1.
-      }
-      var a_sum = 0;
-      var b_sum = 0;
-      for (int i = 0; i < n; i++) {
-        a_sum += a[i]();
-        b_sum += b[i]();
-      }
-      return a_sum + b_sum;
-    }
-
-    return k(n);
-  }
-
-  int field1;
-  int field2_;
-  int get field2 {
-    return field2_;
-  }
-
-  void set field2(int value) {
-    field2_ = value;
-  }
-
-  int method(int n) {
-    incField1() {
-      field1++;
-    }
-
-    incField2() {
-      field2++;
-    }
-
-    for (int i = 0; i < n; i++) {
-      incField1();
-      incField2();
-    }
-    return field1 + field2;
-  }
-
-  int execute(int times, apply(int x)) {
-    for (int i = 0; i < times; i++) {
-      apply(i);
-    }
-    return field1;
-  }
-
-  int testExecute(int n) {
-    execute(n, (int x) {
-      field1 += x;
-    });
-    return field1;
-  }
-
-  static int foo(int n) {
-    return -100; // Wrong foo.
-  }
-
-  static testSelfReference1(int n) {
-    int foo(int n) {
-      if (n == 0) {
-        return 0;
-      } else {
-        return 1 + foo(n - 1); // Local foo, not static foo.
-      }
-    }
-
-    ;
-    return foo(n); // Local foo, not static foo.
-  }
-
-  static void hep(Function f) {
-    f();
-  }
-
-  static testNesting(int n) {
-    var a = new List<dynamic>.filled(n * n, null);
-    f0() {
-      for (int i = 0; i < n; i++) {
-        int vi = i;
-        f1() {
-          for (int j = 0; j < n; j++) {
-            int vj = j;
-            a[i * n + j] = () => vi * n + vj;
-          }
-        }
-
-        f1();
-      }
-    }
-
-    f0();
-    int result = 0;
-    for (int k = 0; k < n * n; k++) {
-      Expect.equals(k, a[k]());
-      result += a[k]();
-    }
-    return result;
-  }
-
-  static var field5;
-  static var set_field5_func;
-  static testClosureCallStatement(int x) {
-    LocalFunctionTest.set_field5_func = (int n) {
-      field5 = n * n;
-    };
-    (LocalFunctionTest.set_field5_func)(x);
-    Expect.equals(x * x, LocalFunctionTest.field5);
-    return true;
-  }
-
-  static testExceptions() {
-    dynamic f = (int n) => n + 1;
-    Expect.equals(2, f(1));
-    Expect.equals(true, f is Function);
-    Expect.equals(true, f is Object);
-    Expect.equals(true, f.toString().startsWith("Closure"));
-    bool exception_caught = false;
-    try {
-      f(1, 2);
-    } on NoSuchMethodError catch (e) {
-      exception_caught = true;
-    }
-    Expect.equals(true, exception_caught);
-    exception_caught = false;
-    try {
-      f();
-    } on NoSuchMethodError catch (e) {
-      exception_caught = true;
-    }
-    Expect.equals(true, exception_caught);
-    exception_caught = false;
-    try {
-      f.xyz(0);
-    } on NoSuchMethodError catch (e) {
-      exception_caught = true;
-    }
-    Expect.equals(true, exception_caught);
-
-    // Overwrite closure value.
-    f = 3;
-    exception_caught = false;
-    try {
-      f(1);
-    } on NoSuchMethodError catch (e) {
-      exception_caught = true;
-    }
-    Expect.equals(true, exception_caught);
-
-    // Do not expect any exceptions to be thrown.
-    var g = ([int n = 1]) => n + 1;
-    Expect.equals(2, g());
-    Expect.equals(3, g(2));
-  }
-
-  static int doThis(int n, int f(int n)) {
-    return f(n);
-  }
-
-  static testMain() {
-    Expect.equals(2 * (3 * 2 + 2 + 1), f(2));
-    Expect.equals(10 * 10 + 10 * 9 / 2, h(10));
-    Expect.equals(90, h2(10));
-    Expect.equals(320, new LocalFunctionTest().method(10));
-    Expect.equals(145, new LocalFunctionTest().testExecute(10));
-    Expect.equals(5, testSelfReference1(5));
-    Expect.equals(24 * 25 / 2, testNesting(5));
-    Expect.equals(true, testClosureCallStatement(7));
-    Expect.equals(99, doThis(10, (n) => n * n - 1));
-    testExceptions();
-  }
-}
-
-main() {
-  LocalFunctionTest.testMain();
-}
diff --git a/tests/language_2/function/malformed_result_type_runtime_test.dart b/tests/language_2/function/malformed_result_type_runtime_test.dart
deleted file mode 100644
index e69b3fdb442..00000000000
--- a/tests/language_2/function/malformed_result_type_runtime_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Dart test for a function with a malformed result type.
-
-import "package:expect/expect.dart";
-
-class C<T, U> {}
-
-main() {
-
-}
diff --git a/tests/language_2/function/malformed_result_type_test.dart b/tests/language_2/function/malformed_result_type_test.dart
deleted file mode 100644
index 99589d18bcd..00000000000
--- a/tests/language_2/function/malformed_result_type_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test for a function with a malformed result type.
-
-import "package:expect/expect.dart";
-
-class C<T, U> {}
-
-main() {
-  C<int> f() => null;
-//^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-// [cfe] Expected 2 type arguments.
-}
diff --git a/tests/language_2/function/propagation_test.dart b/tests/language_2/function/propagation_test.dart
deleted file mode 100644
index 8803479c622..00000000000
--- a/tests/language_2/function/propagation_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  int call(String str) => 499;
-}
-
-typedef int F(String str);
-
-main() {
-  var a = new A();
-  Expect.type<A>(a);
-  Expect.notType<F>(a);
-
-  Function a3 = new A();
-  Expect.notType<A>(a3);
-
-  F a4 = new A();
-  Expect.notType<A>(a4);
-}
diff --git a/tests/language_2/function/regress_45601_test.dart b/tests/language_2/function/regress_45601_test.dart
deleted file mode 100644
index 758623a7311..00000000000
--- a/tests/language_2/function/regress_45601_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Regression test for https://github.com/dart-lang/sdk/issues/45601
-// When comparing values of type `Function` for equality DDC was generating
-// code that would throw at runtime.
-
-void fn<T>(T t) => null;
-
-void main() {
-  testStaticEquality();
-  testDynamicEquality();
-}
-
-/// Ensure `==` calls on function values that are statically typed as `Function`
-/// work as expected.
-void testStaticEquality() {
-  Function staticFunction = fn;
-  Expect.isTrue(staticFunction == fn);
-  Expect.isFalse(staticFunction == main);
-
-  Function staticFunction2 = null;
-  Expect.isFalse(staticFunction2 == staticFunction);
-  staticFunction2 = fn;
-  Expect.isTrue(staticFunction2 == staticFunction);
-}
-
-/// Ensure `==` calls on function values that are statically typed as `dynamic`
-/// work as expected.
-void testDynamicEquality() {
-  dynamic dynamicFunction = fn;
-  Expect.isTrue(dynamicFunction == fn);
-  Expect.isFalse(dynamicFunction == main);
-
-  dynamic dynamicFunction2 = null;
-  Expect.isFalse(dynamicFunction2 == dynamicFunction);
-  dynamicFunction2 = fn;
-  Expect.isTrue(dynamicFunction2 == dynamicFunction);
-}
diff --git a/tests/language_2/function/syntax_test.dart b/tests/language_2/function/syntax_test.dart
deleted file mode 100644
index f2529f0a927..00000000000
--- a/tests/language_2/function/syntax_test.dart
+++ /dev/null
@@ -1,735 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Tests function statement and expression syntax.
-
-class FunctionSyntaxTest {
-  static void testMain
-/* //# 00: syntax error
-      ()
-*/ //# 00: continued
-  {
-    testNestedFunctions();
-    testFunctionExpressions();
-    testPrecedence();
-    testInitializers();
-    testFunctionParameter();
-    testFunctionIdentifierExpression();
-    testFunctionIdentifierStatement();
-  }
-
-  static void testNestedFunctions
-/* //# 01: syntax error
-      ()
-*/ //# 01: continued
-  {
-    // No types - braces.
-    nb0
-/* //# 02: syntax error
-        ()
-*/ //# 02: continued
-    {
-      return 42;
-    }
-
-    nb1
-/* //# 03: syntax error
-        (a)
-*/ //# 03: continued
-    {
-      return a;
-    }
-
-    nb2
-/* //# 04: syntax error
-        (a, b)
-*/ //# 04: continued
-    {
-      return a + b;
-    }
-
-    Expect.equals(42, nb0());
-    Expect.equals(87, nb1(87));
-    Expect.equals(1 + 2, nb2(1, 2));
-
-    // No types - arrows.
-    na0
-/* //# 05: syntax error
-        ()
-*/ //# 05: continued
-            =>
-            42;
-    na1
-/* //# 06: syntax error
-        (a)
-*/ //# 06: continued
-            =>
-            a;
-    na2
-/* //# 07: syntax error
-        (a, b)
-*/ //# 07: continued
-            =>
-            a + b;
-    Expect.equals(42, na0());
-    Expect.equals(87, na1(87));
-    Expect.equals(1 + 2, na2(1, 2));
-
-    // Return type - braces.
-    int rb0
-/* //# 08: syntax error
-        ()
-*/ //# 08: continued
-    {
-      return 42;
-    }
-
-    int rb1
-/* //# 09: syntax error
-        (a)
-*/ //# 09: continued
-    {
-      return a;
-    }
-
-    int rb2
-/* //# 10: syntax error
-        (a, b)
-*/ //# 10: continued
-    {
-      return a + b;
-    }
-
-    Expect.equals(42, rb0());
-    Expect.equals(87, rb1(87));
-    Expect.equals(1 + 2, rb2(1, 2));
-
-    // Return type - arrows.
-    int ra0
-/* //# 11: syntax error
-        ()
-*/ //# 11: continued
-            =>
-            42;
-    int ra1
-/* //# 12: syntax error
-        (a)
-*/ //# 12: continued
-            =>
-            a;
-    int ra2
-/* //# 13: syntax error
-        (a, b)
-*/ //# 13: continued
-            =>
-            a + b;
-    Expect.equals(42, ra0());
-    Expect.equals(87, ra1(87));
-    Expect.equals(1 + 2, ra2(1, 2));
-
-    // Fully typed - braces.
-    int fb1
-/* //# 14: syntax error
-        (int a)
-*/ //# 14: continued
-    {
-      return a;
-    }
-
-    int fb2
-/* //# 15: syntax error
-        (int a, int b)
-*/ //# 15: continued
-    {
-      return a + b;
-    }
-
-    Expect.equals(42, rb0());
-    Expect.equals(87, rb1(87));
-    Expect.equals(1 + 2, rb2(1, 2));
-
-    // Fully typed - arrows.
-    int fa1
-/* //# 16: syntax error
-        (int a)
-*/ //# 16: continued
-            =>
-            a;
-    int fa2
-/* //# 17: syntax error
-        (int a, int b)
-*/ //# 17: continued
-            =>
-            a + b;
-    Expect.equals(42, ra0());
-    Expect.equals(87, ra1(87));
-    Expect.equals(1 + 2, ra2(1, 2));
-
-    // Generic types - braces.
-    List<int> gb0
-/* //# 18: syntax error
-        ()
-*/ //# 18: continued
-    {
-      return [42];
-    }
-
-    List<int> gb1
-/* //# 19: syntax error
-        (List<int> a)
-*/ //# 19: continued
-    {
-      return a;
-    }
-
-    Expect.equals(42, gb0()[0]);
-    Expect.equals(87, gb1([87])[0]);
-
-    // Generic types - arrows.
-    List<int> ga0
-/* //# 20: syntax error
-        ()
-*/ //# 20: continued
-            =>
-            [42];
-    List<int> ga1
-/* //# 21: syntax error
-        (List<int> a)
-*/ //# 21: continued
-            =>
-            a;
-    Expect.equals(42, ga0()[0]);
-    Expect.equals(87, ga1([87])[0]);
-  }
-
-  static void testFunctionExpressions
-/* //# 22: syntax error
-      ()
-*/ //# 22: continued
-  {
-    eval0
-/* //# 23: syntax error
-        (fn)
-*/ //# 23: continued
-            =>
-            fn();
-    eval1
-/* //# 24: syntax error
-        (fn, a)
-*/ //# 24: continued
-            =>
-            fn(a);
-    eval2
-/* //# 25: syntax error
-        (fn, a, b)
-*/ //# 25: continued
-            =>
-            fn(a, b);
-
-    // No types - braces.
-    Expect.equals(42, eval0(
-/* //# 26: syntax error
-        ()
-*/ //# 26: continued
-        {
-      return 42;
-    }));
-    Expect.equals(
-        87,
-        eval1(
-/* //# 27: syntax error
-            (a)
-*/ //# 27: continued
-            {
-          return a;
-        }, 87));
-    Expect.equals(
-        1 + 2,
-        eval2(
-/* //# 28: syntax error
-            (a, b)
-*/ //# 28: continued
-            {
-          return a + b;
-        }, 1, 2));
-    Expect.equals(42, eval0(
-/* //# 29: syntax error
-        ()
-*/ //# 29: continued
-        {
-      return 42;
-    }));
-    Expect.equals(
-        87,
-        eval1(
-/* //# 30: syntax error
-            (a)
-*/ //# 30: continued
-            {
-          return a;
-        }, 87));
-    Expect.equals(
-        1 + 2,
-        eval2(
-/* //# 31: syntax error
-            (a, b)
-*/ //# 31: continued
-            {
-          return a + b;
-        }, 1, 2));
-
-    // No types - arrows.
-    Expect.equals(
-        42,
-        eval0(
-/* //# 32: syntax error
-            ()
-*/ //# 32: continued
-                =>
-                42));
-    Expect.equals(
-        87,
-        eval1(
-/* //# 33: syntax error
-            (a)
-*/ //# 33: continued
-                =>
-                a,
-            87));
-    Expect.equals(
-        1 + 2,
-        eval2(
-/* //# 34: syntax error
-            (a, b)
-*/ //# 34: continued
-                =>
-                a + b,
-            1,
-            2));
-    Expect.equals(
-        42,
-        eval0(
-/* //# 35: syntax error
-            ()
-*/ //# 35: continued
-                =>
-                42));
-    Expect.equals(
-        87,
-        eval1(
-/* //# 36: syntax error
-            (a)
-*/ //# 36: continued
-                =>
-                a,
-            87));
-    Expect.equals(
-        1 + 2,
-        eval2(
-/* //# 37: syntax error
-            (a, b)
-*/ //# 37: continued
-                =>
-                a + b,
-            1,
-            2));
-
-    // Argument types - braces.
-    Expect.equals(42, eval0(
-/* //# 44: syntax error
-        ()
-*/ //# 44: continued
-        {
-      return 42;
-    }));
-    Expect.equals(
-        87,
-        eval1(
-/* //# 45: syntax error
-            (int a)
-*/ //# 45: continued
-            {
-          return a;
-        }, 87));
-    Expect.equals(
-        1 + 2,
-        eval2(
-/* //# 46: syntax error
-            (int a, int b)
-*/ //# 46: continued
-            {
-          return a + b;
-        }, 1, 2));
-    Expect.equals(42, eval0(
-/* //# 47: syntax error
-        ()
-*/ //# 47: continued
-        {
-      return 42;
-    }));
-    Expect.equals(
-        87,
-        eval1(
-/* //# 48: syntax error
-            (int a)
-*/ //# 48: continued
-            {
-          return a;
-        }, 87));
-    Expect.equals(
-        1 + 2,
-        eval2(
-/* //# 49: syntax error
-            (int a, int b)
-*/ //# 49: continued
-            {
-          return a + b;
-        }, 1, 2));
-
-    // Argument types - arrows.
-    Expect.equals(
-        42,
-        eval0(
-/* //# 50: syntax error
-            ()
-*/ //# 50: continued
-                =>
-                42));
-    Expect.equals(
-        87,
-        eval1(
-/* //# 51: syntax error
-            (int a)
-*/ //# 51: continued
-                =>
-                a,
-            87));
-    Expect.equals(
-        1 + 2,
-        eval2(
-/* //# 52: syntax error
-            (int a, int b)
-*/ //# 52: continued
-                =>
-                a + b,
-            1,
-            2));
-    Expect.equals(
-        42,
-        eval0(
-/* //# 53: syntax error
-            ()
-*/ //# 53: continued
-                =>
-                42));
-    Expect.equals(
-        87,
-        eval1(
-/* //# 54: syntax error
-            (int a)
-*/ //# 54: continued
-                =>
-                a,
-            87));
-    Expect.equals(
-        1 + 2,
-        eval2(
-/* //# 55: syntax error
-            (int a, int b)
-*/ //# 55: continued
-                =>
-                a + b,
-            1,
-            2));
-  }
-
-  static void testPrecedence
-/* //# 64: syntax error
-      ()
-*/ //# 64: continued
-  {
-    expectEvaluatesTo
-/* //# 65: syntax error
-        (value, fn)
-*/ //# 65: continued
-    {
-      Expect.equals(value, fn());
-    }
-
-    // Assignment.
-    var x;
-    expectEvaluatesTo(42, () => x = 42);
-    Expect.equals(42, x);
-    x = 1;
-    expectEvaluatesTo(100, () => x += 99);
-    Expect.equals(100, x);
-    x = 1;
-    expectEvaluatesTo(87, () => x *= 87);
-    Expect.equals(87, x);
-
-    // Conditional.
-    expectEvaluatesTo(42, () => true ? 42 : 87);
-    expectEvaluatesTo(87, () => false ? 42 : 87);
-
-    // Logical or.
-    expectEvaluatesTo(true, () => true || true);
-    expectEvaluatesTo(true, () => true || false);
-    expectEvaluatesTo(true, () => false || true);
-    expectEvaluatesTo(false, () => false || false);
-
-    // Logical and.
-    expectEvaluatesTo(true, () => true && true);
-    expectEvaluatesTo(false, () => true && false);
-    expectEvaluatesTo(false, () => false && true);
-    expectEvaluatesTo(false, () => false && false);
-
-    // Bitwise operations.
-    expectEvaluatesTo(3, () => 1 | 2);
-    expectEvaluatesTo(2, () => 3 ^ 1);
-    expectEvaluatesTo(1, () => 3 & 1);
-
-    // Equality.
-    expectEvaluatesTo(true, () => 1 == 1);
-    expectEvaluatesTo(false, () => 1 != 1);
-    expectEvaluatesTo(true, () => identical(1, 1));
-    expectEvaluatesTo(false, () => !identical(1, 1));
-
-    // Relational.
-    expectEvaluatesTo(true, () => 1 <= 1);
-    expectEvaluatesTo(false, () => 1 < 1);
-    expectEvaluatesTo(false, () => 1 > 1);
-    expectEvaluatesTo(true, () => 1 >= 1);
-
-    // Is.
-    expectEvaluatesTo(true, () => 1 is int);
-    expectEvaluatesTo(true, () => 1.0 is double);
-
-    // Shift.
-    expectEvaluatesTo(2, () => 1 << 1);
-    expectEvaluatesTo(1, () => 2 >> 1);
-
-    // Additive.
-    expectEvaluatesTo(2, () => 1 + 1);
-    expectEvaluatesTo(1, () => 2 - 1);
-
-    // Multiplicative.
-    expectEvaluatesTo(2, () => 1 * 2);
-    expectEvaluatesTo(2.0, () => 4 / 2);
-    expectEvaluatesTo(2, () => 4 ~/ 2);
-    expectEvaluatesTo(0, () => 4 % 2);
-
-    // Negate.
-    expectEvaluatesTo(false, () => !true);
-
-    // Postfix / prefix.
-    var y = 0;
-    expectEvaluatesTo(0, () => y++);
-    expectEvaluatesTo(2, () => ++y);
-    expectEvaluatesTo(1, () => --y);
-    expectEvaluatesTo(1, () => y--);
-    Expect.equals(0, y);
-
-    // Selector.
-    fn
-/* //# 66: syntax error
-        ()
-*/ //# 66: continued
-            =>
-            42;
-    var list = [87];
-    expectEvaluatesTo(42, () => fn());
-    expectEvaluatesTo(1, () => list.length);
-    expectEvaluatesTo(87, () => list[0]);
-    expectEvaluatesTo(87, () => list.removeLast());
-  }
-
-  static void testInitializers
-/* //# 67: syntax error
-      ()
-*/ //# 67: continued
-  {
-    Expect.equals(42, (new C.cb0().fn)());
-    Expect.equals(43, (new C.ca0().fn)());
-    Expect.equals(44, (new C.cb1().fn)());
-    Expect.equals(45, (new C.ca1().fn)());
-    Expect.equals(46, (new C.cb2().fn)());
-    Expect.equals(47, (new C.ca2().fn)());
-    Expect.equals(48, (new C.cb3().fn)());
-    Expect.equals(49, (new C.ca3().fn)());
-
-    Expect.equals(52, (new C.nb0().fn)());
-    Expect.equals(53, (new C.na0().fn)());
-    Expect.equals(54, (new C.nb1().fn)());
-    Expect.equals(55, (new C.na1().fn)());
-    Expect.equals(56, (new C.nb2().fn)());
-    Expect.equals(57, (new C.na2().fn)());
-    Expect.equals(58, (new C.nb3().fn)());
-    Expect.equals(59, (new C.na3().fn)());
-
-    Expect.equals(62, (new C.rb0().fn)());
-    Expect.equals(63, (new C.ra0().fn)());
-    Expect.equals(64, (new C.rb1().fn)());
-    Expect.equals(65, (new C.ra1().fn)());
-    Expect.equals(66, (new C.rb2().fn)());
-    Expect.equals(67, (new C.ra2().fn)());
-    Expect.equals(68, (new C.rb3().fn)());
-    Expect.equals(69, (new C.ra3().fn)());
-  }
-
-  static void testFunctionParameter
-/* //# 68: syntax error
-      ()
-*/ //# 68: continued
-  {
-    f0(fn()) => fn();
-    Expect.equals(42, f0(() => 42));
-
-    f1(int fn()) => fn();
-    Expect.equals(87, f1(() => 87));
-
-    f2(fn(a)) => fn(42);
-    Expect.equals(43, f2((a) => a + 1));
-
-    f3(fn(int a)) => fn(42);
-    Expect.equals(44, f3((int a) => a + 2));
-  }
-
-  static void testFunctionIdentifierExpression
-/* //# 69: syntax error
-      ()
-*/ //# 69: continued
-  {
-    Expect.equals(
-        87,
-        (
-/* //# 70: syntax error
-            ()
-*/ //# 70: continued
-                =>
-                87)());
-  }
-
-  static void testFunctionIdentifierStatement
-/* //# 71: syntax error
-      ()
-*/ //# 71: continued
-  {
-    function
-/* //# 72: syntax error
-        ()
-*/ //# 72: continued
-            =>
-            42;
-    Expect.equals(42, function());
-    Expect.equals(true, function is Function);
-  }
-}
-
-class C {
-  C.cb0()
-      : fn = (() {
-          return 42;
-        }) {}
-  C.ca0() : fn = (() => 43) {}
-
-  C.cb1()
-      : fn = wrap(() {
-          return 44;
-        }) {}
-  C.ca1() : fn = wrap(() => 45) {}
-
-  C.cb2()
-      : fn = [
-          () {
-            return 46;
-          }
-        ][0] {}
-  C.ca2() : fn = [() => 47][0] {}
-
-  C.cb3()
-      : fn = {
-          'x': () {
-            return 48;
-          }
-        }['x'] {}
-  C.ca3() : fn = {'x': () => 49}['x'] {}
-
-  C.nb0()
-      : fn = (() {
-          return 52;
-        }) {}
-  C.na0() : fn = (() => 53) {}
-
-  C.nb1()
-      : fn = wrap(() {
-          return 54;
-        }) {}
-  C.na1() : fn = wrap(() => 55) {}
-
-  C.nb2()
-      : fn = [
-          () {
-            return 56;
-          }
-        ][0] {}
-  C.na2() : fn = [() => 57][0] {}
-
-  C.nb3()
-      : fn = {
-          'x': () {
-            return 58;
-          }
-        }['x'] {}
-  C.na3() : fn = {'x': () => 59}['x'] {}
-
-  C.rb0()
-      : fn = (() {
-          return 62;
-        }) {}
-  C.ra0() : fn = (() => 63) {}
-
-  C.rb1()
-      : fn = wrap(() {
-          return 64;
-        }) {}
-  C.ra1() : fn = wrap(() => 65) {}
-
-  C.rb2()
-      : fn = [
-          () {
-            return 66;
-          }
-        ][0] {}
-  C.ra2() : fn = [() => 67][0] {}
-
-  C.rb3()
-      : fn = {
-          'x': () {
-            return 68;
-          }
-        }['x'] {}
-  C.ra3() : fn = {'x': () => 69}['x'] {}
-
-  static wrap
-/* //# 73: syntax error
-      (fn)
-*/ //# 73: continued
-  {
-    return fn;
-  }
-
-  final fn;
-}
-
-main
-/* //# 74: syntax error
-    ()
-*/ //# 74: continued
-{
-  FunctionSyntaxTest.testMain();
-}
diff --git a/tests/language_2/function/type2_test.dart b/tests/language_2/function/type2_test.dart
deleted file mode 100644
index dcfa499e1bb..00000000000
--- a/tests/language_2/function/type2_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  A(f) {
-    f(42);
-  }
-}
-
-class B<T> extends A<T> {
-  B() : super((T param) => 42);
-}
-
-main() {
-  var t = new B<int>();
-  Expect.throwsTypeError(() => new B<String>());
-}
diff --git a/tests/language_2/function/type3_test.dart b/tests/language_2/function/type3_test.dart
deleted file mode 100644
index c5d09ddf428..00000000000
--- a/tests/language_2/function/type3_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  @pragma('dart2js:noInline')
-  A();
-
-  @pragma('dart2js:noInline')
-  foo() => new B<T>();
-}
-
-class B<T> {
-  T bar() => null;
-}
-
-typedef F();
-typedef F2(x);
-
-// Dart2js realized that the generic type for A was not needed, but then used
-// it nevertheless when it constructed the closure.
-main() {
-  var f = new A<int>().foo().bar;
-  Expect.isTrue(f is F);
-  Expect.isFalse(f is F2);
-}
diff --git a/tests/language_2/function/type_alias10_test.dart b/tests/language_2/function/type_alias10_test.dart
deleted file mode 100644
index 5f2add19e6c..00000000000
--- a/tests/language_2/function/type_alias10_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for https://github.com/dart-lang/sdk/issues/30912.
-import 'package:expect/expect.dart';
-
-class Foo {}
-
-class Bar {}
-
-typedef Type Func<S extends Foo, T>(T s);
-
-class Baz<S extends Foo, T extends Bar> {
-  Func<S, Bar> func;
-}
-
-void main() {
-  dynamic baz = new Baz();
-  Expect.isNull(baz.func);
-  baz.func = (Bar b) => b.runtimeType;
-  Expect.equals(baz.func(new Bar()), Bar);
-}
diff --git a/tests/language_2/function/type_alias2_test.dart b/tests/language_2/function/type_alias2_test.dart
deleted file mode 100644
index ac35279715c..00000000000
--- a/tests/language_2/function/type_alias2_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--enable_type_checks
-
-// @dart = 2.9
-
-// Dart test for function type alias with optional parameters.
-import "package:expect/expect.dart";
-
-typedef int f1<T>([int a, int b, T c]);
-typedef int f2<T>([int a, int b, T d]);
-typedef int f3<T>({int a, int b, T c});
-typedef int f4<T>({int a, int b, T d});
-
-class A<T> {
-  int baz([int a, int b, T c]) {}
-  int bar({int a, int b, T c}) {}
-}
-
-int baz([int a, int b, int c]) {}
-
-int bar({int a, int b, int c}) {}
-
-main() {
-  Expect.isFalse(baz is f1);
-  Expect.isFalse(baz is f3);
-  Expect.isFalse(bar is f1);
-  Expect.isFalse(bar is f3);
-  Expect.isFalse(baz is f1);
-  Expect.isTrue(baz is f1<int>);
-  Expect.isTrue(bar is f3<int>);
-  Expect.isFalse(baz is f1<double>);
-  Expect.isFalse(bar is f3<double>);
-  Expect.isFalse(baz is f2);
-  Expect.isFalse(bar is f4);
-  Expect.isTrue(baz is f2<int>);
-  Expect.isFalse(bar is f2<int>);
-
-  A<int> a = new A<int>();
-  Expect.isTrue(a.baz is f1);
-  Expect.isFalse(a.baz is f3);
-  Expect.isFalse(a.bar is f1);
-  Expect.isTrue(a.bar is f3);
-  Expect.isTrue(a.baz is f1);
-  Expect.isTrue(a.baz is f1<Object>);
-  Expect.isTrue(a.bar is f3<Object>);
-  Expect.isTrue(a.baz is f1<int>);
-  Expect.isTrue(a.bar is f3<int>);
-  Expect.isTrue(a.baz is f1<double>);
-  Expect.isTrue(a.bar is f3<double>);
-  Expect.isTrue(a.baz is f2);
-  Expect.isFalse(a.bar is f4);
-  Expect.isTrue(a.baz is f2<Object>);
-  Expect.isFalse(a.bar is f2<Object>);
-}
diff --git a/tests/language_2/function/type_alias3_test.dart b/tests/language_2/function/type_alias3_test.dart
deleted file mode 100644
index 1d241432d4f..00000000000
--- a/tests/language_2/function/type_alias3_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test for function type alias with an imported result type that happens
-// to have the same name as a type parameter.
-import "package:expect/expect.dart";
-import "../library11.dart" as lib11;
-
-typedef lib11.Library111<Library111> F<Library111>(
-    lib11.Library111<Library111> a, Library111 b);
-
-class A<T> {
-  T foo(T a, bool b) {}
-}
-
-main() {
-  var a = new A<lib11.Library111<bool>>();
-  var b = new A<lib11.Library111<int>>();
-  Expect.isTrue(a.foo is! F);
-  Expect.isTrue(a.foo is F<bool>);
-  Expect.isTrue(a.foo is! F<int>);
-  Expect.isTrue(b.foo is! F);
-  Expect.isTrue(b.foo is! F<bool>);
-  Expect.isTrue(a.foo is! F<int>);
-}
diff --git a/tests/language_2/function/type_alias4_test.dart b/tests/language_2/function/type_alias4_test.dart
deleted file mode 100644
index b99efe0727e..00000000000
--- a/tests/language_2/function/type_alias4_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test for function type alias with a type parameter as result type.
-import "package:expect/expect.dart";
-
-typedef bool F<bool>(bool a); // 'bool' is not the boolean type.
-
-bool bar(bool a) {}
-
-int baz(int a) {}
-
-class A<T> {
-  T foo(T a) {}
-}
-
-main() {
-  Expect.isTrue(bar is! F);
-  Expect.isTrue(baz is! F);
-  Expect.isTrue(bar is! F<Object>);
-  Expect.isTrue(baz is! F<Object>);
-  Expect.isTrue(bar is F<bool>);
-  Expect.isTrue(baz is F<int>);
-  Expect.isTrue(bar is! F<int>);
-  Expect.isTrue(baz is! F<bool>);
-
-  var b = new A<bool>();
-  var i = new A<int>();
-  Expect.isTrue(b.foo is F, 'runtime type of covariant parameters is Object');
-  Expect.isTrue(i.foo is F, 'runtime type of covariant parameters is Object');
-  Expect.isTrue(
-      b.foo is F<Object>, 'runtime type of covariant parameters is Object');
-  Expect.isTrue(
-      i.foo is F<Object>, 'runtime type of covariant parameters is Object');
-  Expect.isTrue(b.foo is F<bool>);
-  Expect.isTrue(i.foo is F<int>);
-  Expect.isTrue(b.foo is! F<int>);
-  Expect.isTrue(i.foo is! F<bool>);
-}
diff --git a/tests/language_2/function/type_alias5_test.dart b/tests/language_2/function/type_alias5_test.dart
deleted file mode 100644
index 42d10e6e80f..00000000000
--- a/tests/language_2/function/type_alias5_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for illegally self referencing function type alias.
-
-// @dart = 2.9
-
-typedef Handle Handle(String command); //# 00: compile-time error
-
-typedef F(F x); //# 01: compile-time error
-
-typedef A(B x); //# 02: compile-time error
-typedef B(A x); //# 02: continued
-
-main() {
-  Handle h; //# 00: continued
-  F f; //# 01: continued
-  A f; //# 02: continued
-}
diff --git a/tests/language_2/function/type_alias6_runtime_test.dart b/tests/language_2/function/type_alias6_runtime_test.dart
deleted file mode 100644
index 4017e5bd650..00000000000
--- a/tests/language_2/function/type_alias6_runtime_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for legally self referencing function type alias.
-
-import "package:expect/expect.dart";
-
-typedef F(
-    List
-
-        x);
-
-typedef D C();
-
-class D {
-  C foo() {}
-  D bar() {}
-}
-
-main() {
-  var f = (List x) {};
-  Expect.isTrue(f is F);
-  var g = (List<F> x) {};
-  Expect.isFalse(g is F);
-  var d = new D();
-  Expect.isTrue(d.foo is! C);
-  Expect.isTrue(d.bar is C);
-}
diff --git a/tests/language_2/function/type_alias6_test.dart b/tests/language_2/function/type_alias6_test.dart
deleted file mode 100644
index 55ade341bcf..00000000000
--- a/tests/language_2/function/type_alias6_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for legally self referencing function type alias.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-typedef F(List<F> x);
-//      ^
-// [analyzer] COMPILE_TIME_ERROR.TYPE_ALIAS_CANNOT_REFERENCE_ITSELF
-// [cfe] The typedef 'F' has a reference to itself.
-
-typedef D C();
-
-class D {
-  C foo() {}
-  D bar() {}
-}
-
-main() {
-  var f = (List x) {};
-  Expect.isTrue(f is F);
-  var g = (List<F> x) {};
-  Expect.isFalse(g is F);
-  var d = new D();
-  Expect.isTrue(d.foo is! C);
-  Expect.isTrue(d.bar is C);
-}
diff --git a/tests/language_2/function/type_alias7_test.dart b/tests/language_2/function/type_alias7_test.dart
deleted file mode 100644
index 49616a9632d..00000000000
--- a/tests/language_2/function/type_alias7_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-typedef void funcType([int arg]);
-
-typedef void badFuncType([int arg = 0]); //# 00: compile-time error
-
-typedef void badFuncType({int arg: 0}); //# 02: compile-time error
-
-class A
-  extends funcType // //# 01: compile-time error
-{}
-
-main() {
-  new A();
-  badFuncType f; //# 00: continued
-  badFuncType f; //# 02: continued
-}
diff --git a/tests/language_2/function/type_alias8_test.dart b/tests/language_2/function/type_alias8_test.dart
deleted file mode 100644
index 9b93f34f983..00000000000
--- a/tests/language_2/function/type_alias8_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 9442.
-
-typedef dynamic GetFromThing<T extends Thing>(T target);
-
-typedef GetFromThing<T> DefGetFromThing<T extends Thing>(dynamic def);
-
-class Thing {}
-
-class Test {
-  static final DefGetFromThing<Thing> fromThing = (dynamic def) {};
-}
-
-main() {
-  Test.fromThing(10);
-}
diff --git a/tests/language_2/function/type_alias9_runtime_test.dart b/tests/language_2/function/type_alias9_runtime_test.dart
deleted file mode 100644
index ffab7783cca..00000000000
--- a/tests/language_2/function/type_alias9_runtime_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for legally self referencing function type alias.
-
-typedef void F(
-    List
-
-        l);
-typedef void G(List<F> l);
-
-main() {
-  F foo(G g) => g;
-  foo(null);
-}
diff --git a/tests/language_2/function/type_alias9_test.dart b/tests/language_2/function/type_alias9_test.dart
deleted file mode 100644
index ed8029adb54..00000000000
--- a/tests/language_2/function/type_alias9_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for legally self referencing function type alias.
-
-// @dart = 2.9
-
-typedef void F(List<G> l);
-//           ^
-// [analyzer] COMPILE_TIME_ERROR.TYPE_ALIAS_CANNOT_REFERENCE_ITSELF
-// [cfe] The typedef 'F' has a reference to itself.
-typedef void G(List<F> l);
-//           ^
-// [analyzer] COMPILE_TIME_ERROR.TYPE_ALIAS_CANNOT_REFERENCE_ITSELF
-
-main() {
-  F foo(G g) => g;
-  foo(null);
-}
diff --git a/tests/language_2/function/type_alias_test.dart b/tests/language_2/function/type_alias_test.dart
deleted file mode 100644
index 4ecdbf7d81f..00000000000
--- a/tests/language_2/function/type_alias_test.dart
+++ /dev/null
@@ -1,127 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--enable_type_checks
-//
-// Dart test for function type alias.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-typedef Fun(Null a, Null b);
-
-typedef int IntFun(Null a, Null b);
-
-typedef bool BoolFun(Null a, Null b);
-
-typedef int CompareObj(Object a, Object b);
-
-typedef int CompareInt(int a, int b);
-
-typedef int CompareString(String a, String b, [bool swap]);
-
-typedef void Test();
-
-typedef ParameterizedFun1<T, U extends bool, V>(T t, U u);
-
-typedef List<T> ParameterizedFun2<T, U, V extends Map<T, int>>(
-    Map<T, int> t, U u);
-
-typedef void BoundsCheck<T extends num>(T arg);
-
-class FunctionTypeAliasTest {
-  FunctionTypeAliasTest() {}
-  static int test<T>(int compare(T a, T b), T a, T b) {
-    return compare(a, b);
-  }
-
-  foo(Test arg) {}
-  static bar() {
-    FunctionTypeAliasTest a = new FunctionTypeAliasTest();
-    a.foo(() {});
-    return 0;
-  }
-
-  static void testMain() {
-    int compareStrLen(String a, String b) {
-      return a.length - b.length;
-    }
-
-    Expect.isTrue(compareStrLen is Fun);
-    Expect.isTrue(compareStrLen is IntFun);
-    Expect.isTrue(compareStrLen is! BoolFun);
-    Expect.isTrue(compareStrLen is! CompareObj);
-    Expect.isTrue(compareStrLen is! CompareInt);
-    Expect.isTrue(compareStrLen is! CompareString);
-    Expect.equals(3, test(compareStrLen, "abcdef", "xyz"));
-
-    int compareStrLenSwap(String a, String b, [bool swap = false]) {
-      return swap ? (a.length - b.length) : (b.length - a.length);
-    }
-
-    Expect.isTrue(compareStrLenSwap is Fun);
-    Expect.isTrue(compareStrLenSwap is IntFun);
-    Expect.isTrue(compareStrLenSwap is! BoolFun);
-    Expect.isTrue(compareStrLenSwap is! CompareObj);
-    Expect.isTrue(compareStrLenSwap is! CompareInt);
-    Expect.isTrue(compareStrLenSwap is CompareString);
-
-    int compareStrLenReverse(String a, String b, [bool reverse = false]) {
-      return reverse ? (a.length - b.length) : (b.length - a.length);
-    }
-
-    Expect.isTrue(compareStrLenReverse is Fun);
-    Expect.isTrue(compareStrLenReverse is IntFun);
-    Expect.isTrue(compareStrLenReverse is! BoolFun);
-    Expect.isTrue(compareStrLenReverse is! CompareObj);
-    Expect.isTrue(compareStrLenReverse is! CompareInt);
-    Expect.isTrue(compareStrLenReverse is CompareString);
-
-    int compareObj(Object a, Object b) {
-      return identical(a, b) ? 0 : -1;
-    }
-
-    Expect.isTrue(compareObj is Fun);
-    Expect.isTrue(compareObj is IntFun);
-    Expect.isTrue(compareObj is! BoolFun);
-    Expect.isTrue(compareObj is CompareObj);
-    Expect.isTrue(compareObj is CompareInt);
-    Expect.isTrue(compareObj is! CompareString);
-    Expect.equals(-1, test(compareObj, "abcdef", "xyz"));
-
-    CompareInt minus = (int a, int b) {
-      return a - b;
-    };
-    Expect.isTrue(minus is Fun);
-    Expect.isTrue(minus is IntFun);
-    Expect.isTrue(minus is! BoolFun);
-    Expect.isTrue(minus is! CompareObj);
-    Expect.isTrue(minus is CompareInt);
-    Expect.isTrue(minus is! CompareString);
-    Expect.equals(99, test(minus, 100, 1));
-
-    int plus(int a, [int b = 1]) {
-      return a + b;
-    }
-
-    ;
-    Expect.isTrue(plus is Fun);
-    Expect.isTrue(plus is IntFun);
-    Expect.isTrue(plus is! BoolFun);
-    Expect.isTrue(plus is! CompareObj);
-    Expect.isTrue(plus is CompareInt);
-    Expect.isTrue(plus is! CompareString);
-
-    Expect.equals(0, bar());
-
-    Function boundsTrue = (num arg) {};
-    Function boundsFalse = (String arg) {};
-    Expect.isTrue(boundsTrue is BoundsCheck<int>);
-    Expect.isFalse(boundsFalse is BoundsCheck<num>);
-  }
-}
-
-main() {
-  FunctionTypeAliasTest.testMain();
-}
diff --git a/tests/language_2/function/type_call_getter2_runtime_test.dart b/tests/language_2/function/type_call_getter2_runtime_test.dart
deleted file mode 100644
index 5cbfd1fb5a9..00000000000
--- a/tests/language_2/function/type_call_getter2_runtime_test.dart
+++ /dev/null
@@ -1,78 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class A {
-  final call = null;
-}
-
-class B {
-  get call => null;
-}
-
-class C {
-  set call(x) {}
-}
-
-typedef int F(String str);
-
-main() {
-  A a = new A();
-  B b = new B();
-  C c = new C();
-
-  final
-
-      a2 = a;
-
-  final
-
-      a3 = a;
-
-  final
-
-      b2 = b;
-
-  final
-
-      b3 = b;
-
-  final
-
-      c2 = c;
-
-  final
-
-      c3 = c;
-
-  Expect.throwsTypeError(() {
-    Function a4 = a as dynamic;
-  });
-
-  Expect.throwsTypeError(() {
-    F a5 = a as dynamic;
-  });
-
-  Expect.throwsTypeError(() {
-    Function b4 = b as dynamic;
-  });
-
-  Expect.throwsTypeError(() {
-    F b5 = b as dynamic;
-  });
-
-  Expect.throwsTypeError(() {
-    Function c4 = c as dynamic;
-  });
-
-  Expect.throwsTypeError(() {
-    F c5 = c as dynamic;
-  });
-}
diff --git a/tests/language_2/function/type_call_getter2_test.dart b/tests/language_2/function/type_call_getter2_test.dart
deleted file mode 100644
index 023b14caf5d..00000000000
--- a/tests/language_2/function/type_call_getter2_test.dart
+++ /dev/null
@@ -1,93 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  final call = null;
-}
-
-class B {
-  get call => null;
-}
-
-class C {
-  set call(x) {}
-}
-
-typedef int F(String str);
-
-main() {
-  A a = new A();
-  B b = new B();
-  C c = new C();
-
-  final
-      Function
-      a2 = a;
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-      // [cfe] A value of type 'A' can't be assigned to a variable of type 'Function'.
-
-  final
-      F
-      a3 = a;
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-      // [cfe] A value of type 'A' can't be assigned to a variable of type 'int Function(String)'.
-
-  final
-      Function
-      b2 = b;
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-      // [cfe] A value of type 'B' can't be assigned to a variable of type 'Function'.
-
-  final
-      F
-      b3 = b;
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-      // [cfe] A value of type 'B' can't be assigned to a variable of type 'int Function(String)'.
-
-  final
-      Function
-      c2 = c;
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-      // [cfe] A value of type 'C' can't be assigned to a variable of type 'Function'.
-
-  final
-      F
-      c3 = c;
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-      // [cfe] A value of type 'C' can't be assigned to a variable of type 'int Function(String)'.
-
-  Expect.throwsTypeError(() {
-    Function a4 = a as dynamic;
-  });
-
-  Expect.throwsTypeError(() {
-    F a5 = a as dynamic;
-  });
-
-  Expect.throwsTypeError(() {
-    Function b4 = b as dynamic;
-  });
-
-  Expect.throwsTypeError(() {
-    F b5 = b as dynamic;
-  });
-
-  Expect.throwsTypeError(() {
-    Function c4 = c as dynamic;
-  });
-
-  Expect.throwsTypeError(() {
-    F c5 = c as dynamic;
-  });
-}
diff --git a/tests/language_2/function/type_call_getter_test.dart b/tests/language_2/function/type_call_getter_test.dart
deleted file mode 100644
index 792fd396ae6..00000000000
--- a/tests/language_2/function/type_call_getter_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  final call = null;
-}
-
-class B {
-  get call => null;
-}
-
-class C {
-  set call(x) {}
-}
-
-typedef int F(String str);
-
-main() {
-  Expect.isFalse(new A() is Function);
-  Expect.isFalse(new B() is Function);
-  Expect.isFalse(new C() is Function);
-  Expect.isFalse(new A() is F);
-  Expect.isFalse(new B() is F);
-  Expect.isFalse(new C() is F);
-}
diff --git a/tests/language_2/function/type_in_constant_test.dart b/tests/language_2/function/type_in_constant_test.dart
deleted file mode 100644
index 9b967efe0be..00000000000
--- a/tests/language_2/function/type_in_constant_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Test that consts can be created with inlined function types as type
-/// arguments.
-
-import 'package:expect/expect.dart';
-
-class A<T> {
-  const A();
-}
-
-@pragma('dart2js:noInline')
-test(a, b) {
-  Expect.notEquals(a, b);
-}
-
-main() {
-  test(const A<int Function()>(), const A<String Function()>());
-  test(const A<int>(), const A<String Function()>());
-  test(const A<int Function()>(), const A<String>());
-}
diff --git a/tests/language_2/function/type_parameter2_test.dart b/tests/language_2/function/type_parameter2_test.dart
deleted file mode 100644
index 0ca6000c1ce..00000000000
--- a/tests/language_2/function/type_parameter2_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test to check that we can parse closure type formal parameters with
-// default value.
-
-import "package:expect/expect.dart";
-
-class FunctionTypeParameterTest {
-  static var formatter;
-
-  static SetFormatter([String fmt(int i) = null]) {
-    formatter = fmt;
-  }
-
-  static void testMain() {
-    Expect.equals(null, formatter);
-    SetFormatter((i) => "$i");
-    Expect.equals(false, null == formatter);
-    Expect.equals("1234", formatter(1230 + 4));
-    SetFormatter();
-    Expect.equals(null, formatter);
-  }
-}
-
-main() {
-  FunctionTypeParameterTest.testMain();
-}
diff --git a/tests/language_2/function/type_parameter3_test.dart b/tests/language_2/function/type_parameter3_test.dart
deleted file mode 100644
index 67a06c9b9ec..00000000000
--- a/tests/language_2/function/type_parameter3_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Test that we detect that a function literal is not
-/// a compile time constant.
-
-test([String fmt(int i) = (i) => "$i"]) {}
-//                        ^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_CONSTANT_DEFAULT_VALUE
-// [cfe] Not a constant expression.
-//                                 ^
-// [cfe] Not a constant expression.
-
-main() {
-  test();
-}
diff --git a/tests/language_2/function/type_parameter_bound_object_test.dart b/tests/language_2/function/type_parameter_bound_object_test.dart
deleted file mode 100644
index f20d2fb000d..00000000000
--- a/tests/language_2/function/type_parameter_bound_object_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-Q hest<Q>(dynamic x) {
-  if (x is Q) return x;
-  return null;
-}
-
-Q Function<Q>(dynamic) pony = hest;
-Q Function<Q extends Object>(dynamic) zebra = hest;
-
-main() {
-  hest(42).fisk(); //# 01: runtime error
-  pony(42).fisk(); //# 02: runtime error
-  zebra(42).fisk(); //# 03: compile-time error
-}
diff --git a/tests/language_2/function/type_parameter_test.dart b/tests/language_2/function/type_parameter_test.dart
deleted file mode 100644
index 0393ed52813..00000000000
--- a/tests/language_2/function/type_parameter_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test to check that we can parse closure type formal parameters with
-// default value.
-
-class A {
-  final f;
-  A(int this.f());
-  const A.nother(int this.f());
-
-  static Function func;
-
-  static SetFunc([String fmt(int i) = null]) {
-    func = fmt;
-  }
-}
-
-main() {
-  Expect.equals(null, A.func);
-  A.SetFunc((i) => "$i");
-  Expect.equals(false, null == A.func);
-  Expect.equals("1234", A.func(1230 + 4));
-  A.SetFunc();
-  Expect.equals(null, A.func);
-
-  Expect.equals(42, new A(() => 42).f());
-  Expect.equals(42, new A.nother(() => 42).f());
-}
diff --git a/tests/language_2/function/type_test.dart b/tests/language_2/function/type_test.dart
deleted file mode 100644
index 96c2550ac3f..00000000000
--- a/tests/language_2/function/type_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test for a function type test that cannot be eliminated at compile time.
-import "package:expect/expect.dart";
-
-typedef FListInt(List<int> l);
-
-main() {
-  Expect.throwsTypeError(() {
-    // Static result type of f(), i.e. FList, is a subtype of FListInt.
-    // However, run time type of returned function is not a subtype of FListInt.
-    // Run time type check should not be eliminated.
-    FListInt fli = ((List<String> l) => null) as dynamic;
-  });
-}
diff --git a/tests/language_2/function/type_this_parameter_test.dart b/tests/language_2/function/type_this_parameter_test.dart
deleted file mode 100644
index 78b5f3cc625..00000000000
--- a/tests/language_2/function/type_this_parameter_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check that function types are accepted for constructor arguments that
-// initialize fields.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  Function f;
-  A(int this.f());
-}
-
-main() {
-  var a = new A(() => 499);
-  Expect.equals(499, (a.f)());
-}
diff --git a/tests/language_2/function_subtype/bound_closure0_test.dart b/tests/language_2/function_subtype/bound_closure0_test.dart
deleted file mode 100644
index 394f8af0ef9..00000000000
--- a/tests/language_2/function_subtype/bound_closure0_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping for bound closures.
-
-import 'package:expect/expect.dart';
-
-typedef int Foo(bool a, [String b]);
-typedef int Bar(bool a, [String b]);
-typedef int Baz(bool a, {String b});
-typedef int Boz(bool a);
-
-class C {
-  int foo(bool a, [String b]) => null;
-  int baz(bool a, {String b}) => null;
-  int boz(bool a, {int b}) => null;
-}
-
-main() {
-  var c = new C();
-  var foo = c.foo;
-  Expect.isTrue(foo is Foo, 'foo is Foo');
-  Expect.isTrue(foo is Bar, 'foo is Bar');
-  Expect.isFalse(foo is Baz, 'foo is Baz');
-  Expect.isTrue(foo is Boz, 'foo is Boz');
-
-  var baz = c.baz;
-  Expect.isFalse(baz is Foo, 'baz is Foo');
-  Expect.isFalse(baz is Bar, 'baz is Bar');
-  Expect.isTrue(baz is Baz, 'baz is Baz');
-  Expect.isTrue(baz is Boz, 'baz is Boz');
-
-  var boz = c.boz;
-  Expect.isFalse(boz is Foo, 'boz is Foo');
-  Expect.isFalse(boz is Bar, 'boz is Bar');
-  Expect.isFalse(boz is Baz, 'boz is Baz');
-  Expect.isTrue(boz is Boz, 'boz is Boz');
-}
diff --git a/tests/language_2/function_subtype/bound_closure1_test.dart b/tests/language_2/function_subtype/bound_closure1_test.dart
deleted file mode 100644
index 4c84632cfb9..00000000000
--- a/tests/language_2/function_subtype/bound_closure1_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping for bound closures against generic typedefs.
-
-import 'package:expect/expect.dart';
-
-typedef int Foo<T>(T a, [String b]);
-typedef int Bar<T>(T a, [String b]);
-typedef int Baz<T>(T a, {String b});
-typedef int Boz<T>(T a);
-
-class C {
-  int foo(bool a, [String b]) => null;
-  int baz(bool a, {String b}) => null;
-}
-
-main() {
-  var c = new C();
-  var foo = c.foo;
-  Expect.isTrue(foo is Foo<bool>, 'foo is Foo<bool>');
-  Expect.isTrue(foo is Bar<bool>, 'foo is Bar<bool>');
-  Expect.isFalse(foo is Baz<bool>, 'foo is Baz<bool>');
-  Expect.isTrue(foo is Boz<bool>, 'foo is Boz<bool>');
-
-  Expect.isFalse(foo is Foo<int>, 'foo is Foo<int>');
-  Expect.isFalse(foo is Bar<int>, 'foo is Bar<int>');
-  Expect.isFalse(foo is Baz<int>, 'foo is Baz<int>');
-  Expect.isFalse(foo is Boz<int>, 'foo is Boz<int>');
-
-  Expect.isFalse(foo is Foo, 'foo is Foo');
-  Expect.isFalse(foo is Bar, 'foo is Bar');
-  Expect.isFalse(foo is Baz, 'foo is Baz');
-  Expect.isFalse(foo is Boz, 'foo is Boz');
-
-  var baz = c.baz;
-  Expect.isFalse(baz is Foo<bool>, 'baz is Foo<bool>');
-  Expect.isFalse(baz is Bar<bool>, 'baz is Bar<bool>');
-  Expect.isTrue(baz is Baz<bool>, 'baz is Baz<bool>');
-  Expect.isTrue(baz is Boz<bool>, 'baz is Boz<bool>');
-
-  Expect.isFalse(baz is Foo<int>, 'baz is Foo<int>');
-  Expect.isFalse(baz is Bar<int>, 'baz is Bar<int>');
-  Expect.isFalse(baz is Baz<int>, 'baz is Baz<int>');
-  Expect.isFalse(baz is Boz<int>, 'baz is Boz<int>');
-
-  Expect.isFalse(baz is Foo, 'baz is Foo');
-  Expect.isFalse(baz is Bar, 'baz is Bar');
-  Expect.isFalse(baz is Baz, 'baz is Baz');
-  Expect.isFalse(baz is Boz, 'baz is Boz');
-}
diff --git a/tests/language_2/function_subtype/bound_closure2_test.dart b/tests/language_2/function_subtype/bound_closure2_test.dart
deleted file mode 100644
index db2f3ace571..00000000000
--- a/tests/language_2/function_subtype/bound_closure2_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping for bound closures on generic type against generic
-// typedefs.
-
-import 'package:expect/expect.dart';
-
-typedef int Foo<T>(T a, [String b]);
-typedef int Bar<T>(T a, [String b]);
-typedef int Baz<T>(T a, {String b});
-typedef int Boz<T>(T a);
-typedef int Biz<T>(T a, int b);
-
-class C<T> {
-  int foo(bool a, [String b]) => null;
-  int baz(bool a, {String b}) => null;
-
-  void test(String nameOfT, bool expectedResult) {
-    Expect.equals(expectedResult, foo is Foo<T>, 'foo is Foo<$nameOfT>');
-    Expect.equals(expectedResult, foo is Bar<T>, 'foo is Bar<$nameOfT>');
-    Expect.isFalse(foo is Baz<T>, 'foo is Baz<$nameOfT>');
-    Expect.equals(expectedResult, foo is Boz<T>, 'foo is Boz<$nameOfT>');
-    Expect.isFalse(foo is Biz<T>, 'foo is Biz<$nameOfT>');
-
-    Expect.isFalse(baz is Foo<T>, 'baz is Foo<$nameOfT>');
-    Expect.isFalse(baz is Bar<T>, 'baz is Bar<$nameOfT>');
-    Expect.equals(expectedResult, baz is Baz<T>, 'baz is Baz<$nameOfT>');
-    Expect.equals(expectedResult, baz is Boz<T>, 'baz is Boz<$nameOfT>');
-    Expect.isFalse(baz is Biz<T>, 'bar is Biz<$nameOfT>');
-  }
-}
-
-main() {
-  new C<bool>().test('bool', true);
-  new C<int>().test('int', false);
-  new C<Object>().test('Object', false);
-  new C<dynamic>().test('dynamic', false);
-}
diff --git a/tests/language_2/function_subtype/bound_closure3_test.dart b/tests/language_2/function_subtype/bound_closure3_test.dart
deleted file mode 100644
index 50adafb799a..00000000000
--- a/tests/language_2/function_subtype/bound_closure3_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping for generic bound closures.
-
-import 'package:expect/expect.dart';
-
-typedef void Foo(bool a, [String b]);
-typedef void Bar(bool a, [String b]);
-typedef void Baz(bool a, {String b});
-typedef int Boz(bool a);
-
-class C<T> {
-  void foo(T a, [String b]) {}
-  void baz(T a, {String b}) {}
-
-  void test(String nameOfT) {
-    Expect.isTrue(foo is Foo, 'C<$nameOfT>.foo is not Foo');
-    Expect.isTrue(foo is Bar, 'C<$nameOfT>.foo is not Bar');
-    Expect.isFalse(foo is Baz, 'C<$nameOfT>.foo is Baz');
-    Expect.isFalse(foo is Boz, 'C<$nameOfT>.foo is Boz');
-
-    Expect.isFalse(baz is Foo, 'C<$nameOfT>.baz is Foo');
-    Expect.isFalse(baz is Bar, 'C<$nameOfT>.baz is Bar');
-    Expect.isTrue(baz is Baz, 'C<$nameOfT>.baz is not Baz');
-    Expect.isFalse(baz is Boz, 'C<$nameOfT>.baz is Boz');
-  }
-}
-
-main() {
-  new C<bool>().test('bool');
-  new C<int>().test('int');
-  new C<dynamic>().test('dynamic');
-}
diff --git a/tests/language_2/function_subtype/bound_closure4_test.dart b/tests/language_2/function_subtype/bound_closure4_test.dart
deleted file mode 100644
index 25f436eba95..00000000000
--- a/tests/language_2/function_subtype/bound_closure4_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping for generic bound closures.
-
-import 'package:expect/expect.dart';
-
-typedef void Foo(bool a, [String b]);
-typedef void Bar(bool a, [String b]);
-typedef void Baz(bool a, {String b});
-typedef int Boz(bool a);
-
-class C<T> {
-  void foo(T a, [String b]) {}
-  void baz(T a, {String b}) {}
-
-  void test(String nameOfT) {
-    Expect.isTrue(foo is Foo, 'C<$nameOfT>.foo is not Foo');
-    Expect.isTrue(foo is Bar, 'C<$nameOfT>.foo is not Bar');
-    Expect.isFalse(foo is Baz, 'C<$nameOfT>.foo is Baz');
-    Expect.isFalse(foo is Boz, 'C<$nameOfT>.foo is Boz');
-
-    Expect.isFalse(baz is Foo, 'C<$nameOfT>.baz is Foo');
-    Expect.isFalse(baz is Bar, 'C<$nameOfT>.baz is Bar');
-    Expect.isTrue(baz is Baz, 'C<$nameOfT>.baz is not Baz');
-    Expect.isFalse(baz is Boz, 'C<$nameOfT>.baz is Boz');
-  }
-}
-
-class D<S, T> extends C<T> {}
-
-main() {
-  new D<String, bool>().test('bool');
-  new D<bool, int>().test('int');
-  new D<dynamic, dynamic>().test('dynamic');
-}
diff --git a/tests/language_2/function_subtype/bound_closure5_test.dart b/tests/language_2/function_subtype/bound_closure5_test.dart
deleted file mode 100644
index 29e8a819384..00000000000
--- a/tests/language_2/function_subtype/bound_closure5_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping for bound closures on generic type against generic
-// typedefs.
-
-import 'package:expect/expect.dart';
-
-typedef int Foo<T>(T a, [String b]);
-typedef int Bar<T>(T a, [String b]);
-typedef int Baz<T>(T a, {String b});
-typedef int Boz<T>(T a);
-typedef int Biz<T>(T a, int b);
-
-class C<T> {
-  int foo(bool a, [String b]) => null;
-  int baz(bool a, {String b}) => null;
-
-  void test(String nameOfT, bool expectedResult) {
-    Expect.equals(expectedResult, foo is Foo<T>, 'foo is Foo<$nameOfT>');
-    Expect.equals(expectedResult, foo is Bar<T>, 'foo is Bar<$nameOfT>');
-    Expect.isFalse(foo is Baz<T>, 'foo is Baz<$nameOfT>');
-    Expect.equals(expectedResult, foo is Boz<T>, 'foo is Boz<$nameOfT>');
-    Expect.isFalse(foo is Biz<T>, 'foo is Biz<$nameOfT>');
-
-    Expect.isFalse(baz is Foo<T>, 'baz is Foo<$nameOfT>');
-    Expect.isFalse(baz is Bar<T>, 'baz is Bar<$nameOfT>');
-    Expect.equals(expectedResult, baz is Baz<T>, 'baz is Baz<$nameOfT>');
-    Expect.equals(expectedResult, baz is Boz<T>, 'baz is Boz<$nameOfT>');
-    Expect.isFalse(baz is Biz<T>, 'bar is Biz<$nameOfT>');
-  }
-}
-
-class D<S, T> extends C<T> {}
-
-main() {
-  new D<String, bool>().test('bool', true);
-  new D<bool, int>().test('int', false);
-  new D<Object, Object>().test('Object', false);
-  new D<Null, Null>().test('Null', true);
-  new D<dynamic, dynamic>().test('dynamic', false);
-}
diff --git a/tests/language_2/function_subtype/bound_closure5a_test.dart b/tests/language_2/function_subtype/bound_closure5a_test.dart
deleted file mode 100644
index 57d7858fabf..00000000000
--- a/tests/language_2/function_subtype/bound_closure5a_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping for bound closures on generic type against generic
-// typedefs.
-
-import 'package:expect/expect.dart';
-
-typedef int Foo<T>(T a, [String b]);
-typedef int Bar<T>(T a, [String b]);
-typedef int Baz<T>(T a, {String b});
-typedef int Boz<T>(T a);
-typedef int Biz<T>(T a, int b);
-
-class C<T> {
-  int foo(bool a, [String b]) => null;
-  int baz(bool a, {String b}) => null;
-
-  void test(String nameOfT, bool expectedResult) {
-    Expect.equals(expectedResult, foo is Foo<T>, 'foo is Foo<$nameOfT>');
-    Expect.equals(expectedResult, foo is Bar<T>, 'foo is Bar<$nameOfT>');
-    Expect.isFalse(foo is Baz<T>, 'foo is Baz<$nameOfT>');
-    Expect.equals(expectedResult, foo is Boz<T>, 'foo is Boz<$nameOfT>');
-    Expect.isFalse(foo is Biz<T>, 'foo is Biz<$nameOfT>');
-
-    Expect.isFalse(baz is Foo<T>, 'baz is Foo<$nameOfT>');
-    Expect.isFalse(baz is Bar<T>, 'baz is Bar<$nameOfT>');
-    Expect.equals(expectedResult, baz is Baz<T>, 'baz is Baz<$nameOfT>');
-    Expect.equals(expectedResult, baz is Boz<T>, 'baz is Boz<$nameOfT>');
-    Expect.isFalse(baz is Biz<T>, 'bar is Biz<$nameOfT>');
-  }
-}
-
-class Cm<T> extends C<T> {}
-
-class D<S, T> extends Cm<T> {}
-
-main() {
-  new D<String, bool>().test('bool', true);
-  new D<bool, int>().test('int', false);
-  new D<Object, Object>().test('Object', false);
-  new D<Null, Null>().test('Null', true);
-  new D<dynamic, dynamic>().test('dynamic', false);
-}
diff --git a/tests/language_2/function_subtype/bound_closure6_test.dart b/tests/language_2/function_subtype/bound_closure6_test.dart
deleted file mode 100644
index 34e71ea40ce..00000000000
--- a/tests/language_2/function_subtype/bound_closure6_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping for bound closures on generic type against generic
-// typedefs.
-
-import 'package:expect/expect.dart';
-
-typedef int Foo<T>(T a, [String b]);
-typedef int Bar<T>(T a, [String b]);
-typedef int Baz<T>(T a, {String b});
-typedef int Boz<T>(T a);
-typedef int Biz<T>(T a, int b);
-
-class C<T> {
-  int foo(bool a, [String b]) => null;
-  int baz(bool a, {String b}) => null;
-
-  void test(String nameOfT, bool expectedResult) {
-    void localMethod() {
-      Expect.equals(expectedResult, foo is Foo<T>, 'foo is Foo<$nameOfT>');
-      Expect.equals(expectedResult, foo is Bar<T>, 'foo is Bar<$nameOfT>');
-      Expect.isFalse(foo is Baz<T>, 'foo is Baz<$nameOfT>');
-      Expect.equals(expectedResult, foo is Boz<T>, 'foo is Boz<$nameOfT>');
-      Expect.isFalse(foo is Biz<T>, 'foo is Biz<$nameOfT>');
-
-      Expect.isFalse(baz is Foo<T>, 'baz is Foo<$nameOfT>');
-      Expect.isFalse(baz is Bar<T>, 'baz is Bar<$nameOfT>');
-      Expect.equals(expectedResult, baz is Baz<T>, 'baz is Baz<$nameOfT>');
-      Expect.equals(expectedResult, baz is Boz<T>, 'baz is Boz<$nameOfT>');
-      Expect.isFalse(baz is Biz<T>, 'bar is Biz<$nameOfT>');
-    }
-
-    localMethod();
-  }
-}
-
-main() {
-  new C<bool>().test('bool', true);
-  new C<int>().test('int', false);
-  new C<Object>().test('Object', false);
-  new C<dynamic>().test('dynamic', false);
-  new C<Null>().test('Null', true);
-}
diff --git a/tests/language_2/function_subtype/bound_closure7_test.dart b/tests/language_2/function_subtype/bound_closure7_test.dart
deleted file mode 100644
index a9a706089a7..00000000000
--- a/tests/language_2/function_subtype/bound_closure7_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping for bound closures.
-
-import 'package:expect/expect.dart';
-
-typedef Foo<T>(T t);
-
-class Class<T> {
-  foo(Foo<T> o) => o is Foo<T>;
-}
-
-bar(int i) {}
-
-baz<T>(Foo<T> o) => o is Foo<T>;
-
-void main() {
-  dynamic f = new Class<int>().foo;
-  Expect.isTrue(f(bar));
-  Expect.isTrue(f is Foo<Foo<int>>);
-  Expect.isFalse(f is Foo<int>);
-  Expect.isFalse(f is Foo<Object>);
-  Expect.throwsTypeError(() => f(f));
-  Expect.throwsTypeError(() => f(42));
-
-  Foo<Foo<int>> bazInt = baz; // implicit instantiation baz<int>
-  f = bazInt;
-  Expect.isTrue(f(bar));
-  Expect.isFalse(f is Foo<int>);
-  Expect.throwsTypeError(() => f(f));
-  Expect.throwsTypeError(() => f(42));
-}
diff --git a/tests/language_2/function_subtype/call0_test.dart b/tests/language_2/function_subtype/call0_test.dart
deleted file mode 100644
index ad24bb2888b..00000000000
--- a/tests/language_2/function_subtype/call0_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping for classes with call functions.
-
-import 'package:expect/expect.dart';
-
-typedef void Foo(bool a, [String b]);
-typedef void Bar(bool a, [String b]);
-typedef void Baz(bool a, {String b});
-typedef void Boz(bool a);
-
-class C1 {
-  void call(bool a, [String b]) {}
-}
-
-class C2 {
-  void call(bool a, {String b}) {}
-}
-
-class C3 {
-  void call(bool a, {int b}) {}
-}
-
-main() {
-  Function c1 = new C1(); // implicit tearoff of `call`
-  Expect.isTrue(c1 is Foo, 'c1 is Foo');
-  Expect.isTrue(c1 is Bar, 'c1 is Bar');
-  Expect.isFalse(c1 is Baz, 'c1 is Baz');
-  Expect.isTrue(c1 is Boz, 'c1 is Boz');
-  Expect.isFalse(c1 is C1, 'c1 is C1');
-
-  Function c2 = new C2(); // implicit tearoff of `call`
-  Expect.isFalse(c2 is Foo, 'c2 is Foo');
-  Expect.isFalse(c2 is Bar, 'c2 is Bar');
-  Expect.isTrue(c2 is Baz, 'c2 is Baz');
-  Expect.isTrue(c2 is Boz, 'c2 is Boz');
-  Expect.isFalse(c2 is C2, 'c2 is C2');
-
-  Function c3 = new C3(); // implicit tearoff of `call`
-  Expect.isFalse(c3 is Foo, 'c3 is Foo');
-  Expect.isFalse(c3 is Bar, 'c3 is Bar');
-  Expect.isFalse(c3 is Baz, 'c3 is Baz');
-  Expect.isTrue(c3 is Boz, 'c3 is Boz');
-  Expect.isFalse(c3 is C3, 'c3 is C3');
-
-  expectIsNotFunction(new C1());
-  expectIsNotFunction(new C2());
-  expectIsNotFunction(new C3());
-}
-
-expectIsNotFunction(Object obj) {
-  Expect.isFalse(obj is Function, '$obj should not be a Function');
-  Expect.isFalse(obj is Foo, '$obj should not be a Foo');
-  Expect.isFalse(obj is Bar, '$obj should not be a Bar');
-  Expect.isFalse(obj is Baz, '$obj should not be a Baz');
-  Expect.isFalse(obj is Boz, '$obj should not be a Boz');
-}
diff --git a/tests/language_2/function_subtype/call1_test.dart b/tests/language_2/function_subtype/call1_test.dart
deleted file mode 100644
index 0df346ac619..00000000000
--- a/tests/language_2/function_subtype/call1_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping for classes with call functions.
-
-import 'package:expect/expect.dart';
-
-typedef void Foo(bool a, [String b]);
-typedef void Bar(bool a, [String b]);
-typedef void Baz(bool a, {String b});
-typedef void Boz(bool a);
-
-class C1<T> {
-  void call(T a, [String b]) {}
-}
-
-class C2<T> {
-  void call(T a, {String b}) {}
-}
-
-main() {
-  Function c1_bool = new C1<bool>(); // implicit tearoff of `call`
-  Expect.isTrue(c1_bool is Foo, 'c1_bool is Foo');
-  Expect.isTrue(c1_bool is Bar, 'c1_bool is Bar');
-  Expect.isFalse(c1_bool is Baz, 'c1_bool is Baz');
-  Expect.isTrue(c1_bool is Boz, 'c1_bool is Boz');
-
-  Function c1_int = new C1<int>(); // implicit tearoff of `call`
-  Expect.isTrue(c1_int is Foo, 'c1_int is Foo');
-  Expect.isTrue(c1_int is Bar, 'c1_int is Bar');
-  Expect.isFalse(c1_int is Baz, 'c1_int is Baz');
-  Expect.isTrue(c1_int is Boz, 'c1_int is Boz');
-
-  Function c1 = new C1(); // implicit tearoff of `call`
-  Expect.isTrue(c1 is Foo, 'c1 is Foo');
-  Expect.isTrue(c1 is Bar, 'c1 is Bar');
-  Expect.isFalse(c1 is Baz, 'c1 is Baz');
-  Expect.isTrue(c1 is Boz, 'c1 is Boz');
-
-  Function c2_bool = new C2<bool>(); // implicit tearoff of `call`
-  Expect.isFalse(c2_bool is Foo, 'c2_bool is Foo');
-  Expect.isFalse(c2_bool is Bar, 'c2_bool is Bar');
-  Expect.isTrue(c2_bool is Baz, 'c2_bool is Baz');
-  Expect.isTrue(c2_bool is Boz, 'c2_bool is Boz');
-
-  Function c2_int = new C2<int>(); // implicit tearoff of `call`
-  Expect.isFalse(c2_int is Foo, 'c2_int is Foo');
-  Expect.isFalse(c2_int is Bar, 'c2_int is Bar');
-  Expect.isTrue(c2_int is Baz, 'c2_int is Baz');
-  Expect.isTrue(c2_int is Boz, 'c2_int is Boz');
-
-  Function c2 = new C2(); // implicit tearoff of `call`
-  Expect.isFalse(c2 is Foo, 'c2 is Foo');
-  Expect.isFalse(c2 is Bar, 'c2 is Bar');
-  Expect.isTrue(c2 is Baz, 'c2 is Baz');
-  Expect.isTrue(c2 is Boz, 'c2 is Boz');
-}
diff --git a/tests/language_2/function_subtype/call2_test.dart b/tests/language_2/function_subtype/call2_test.dart
deleted file mode 100644
index da64f65272a..00000000000
--- a/tests/language_2/function_subtype/call2_test.dart
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping for classes with call functions.
-
-import 'package:expect/expect.dart';
-
-typedef void Foo(bool a, [String b]);
-typedef void Bar(bool a, [String b]);
-typedef void Baz(bool a, {String b});
-typedef void Boz(bool a);
-
-class C1<T> {
-  void call(T a, [String b]) {}
-}
-
-class D1<S, T> extends C1<T> {}
-
-class C2<T> {
-  void call(T a, {String b}) {}
-}
-
-class D2<S, T> extends C2<T> {}
-
-main() {
-  Function d1_String_bool = new D1<String, bool>();
-  Expect.isTrue(d1_String_bool is Foo, 'd1_String_bool is Foo');
-  Expect.isTrue(d1_String_bool is Bar, 'd1_String_bool is Bar');
-  Expect.isFalse(d1_String_bool is Baz, 'd1_String_bool is Baz');
-  Expect.isTrue(d1_String_bool is Boz, 'd1_String_bool is Boz');
-
-  Function d1_bool_int = new D1<bool, int>();
-  Expect.isTrue(d1_bool_int is Foo, 'd1_bool_int is Foo');
-  Expect.isTrue(d1_bool_int is Bar, 'd1_bool_int is Bar');
-  Expect.isFalse(d1_bool_int is Baz, 'd1_bool_int is Baz');
-  Expect.isTrue(d1_bool_int is Boz, 'd1_bool_int is Boz');
-
-  Function d1 = new D1();
-  Expect.isTrue(d1 is Foo, 'd1 is Foo');
-  Expect.isTrue(d1 is Bar, 'd1 is Bar');
-  Expect.isFalse(d1 is Baz, 'd1 is Baz');
-  Expect.isTrue(d1 is Boz, 'd1 is Boz');
-
-  Function d2_String_bool = new D2<String, bool>();
-  Expect.isFalse(d2_String_bool is Foo, 'd2_String_bool is Foo');
-  Expect.isFalse(d2_String_bool is Bar, 'd2_String_bool is Bar');
-  Expect.isTrue(d2_String_bool is Baz, 'd2_String_bool is Baz');
-  Expect.isTrue(d2_String_bool is Boz, 'd2_String_bool is Boz');
-
-  Function d2_bool_int = new D2<bool, int>();
-  Expect.isFalse(d2_bool_int is Foo, 'd2_bool_int is Foo');
-  Expect.isFalse(d2_bool_int is Bar, 'd2_bool_int is Bar');
-  Expect.isTrue(d2_bool_int is Baz, 'd2_bool_int is Baz');
-  Expect.isTrue(d2_bool_int is Boz, 'd2_bool_int is Boz');
-
-  Function d2 = new D2();
-  Expect.isFalse(d2 is Foo, 'd2 is Foo');
-  Expect.isFalse(d2 is Bar, 'd2 is Bar');
-  Expect.isTrue(d2 is Baz, 'd2 is Baz');
-  Expect.isTrue(d2 is Boz, 'd2 is Boz');
-}
diff --git a/tests/language_2/function_subtype/call_type_variable_test.dart b/tests/language_2/function_subtype/call_type_variable_test.dart
deleted file mode 100644
index a33cea3a39e..00000000000
--- a/tests/language_2/function_subtype/call_type_variable_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that it is possible to invoke an object whose type is a proper subtype
-// of a function type (that is, its type is 'function-type bounded', and we
-// get to call it as if its type had been that bound).
-
-class A<X, Y extends X Function(X)> {
-  final Y f;
-  A(this.f);
-  X m(X value) => f(value);
-}
-
-class B extends A<String, String Function(String, {int i})> {
-  B(String Function(String, {int i}) f) : super(f);
-  String m(String value) => f(value, i: 42);
-}
-
-void main() {
-  B b = B((String s, {int i}) => "$s and $i");
-  Expect.equals('24 and 42', b.m('24'));
-}
diff --git a/tests/language_2/function_subtype/cast0_test.dart b/tests/language_2/function_subtype/cast0_test.dart
deleted file mode 100644
index 4a8b80c4501..00000000000
--- a/tests/language_2/function_subtype/cast0_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping casts.
-
-import 'package:expect/expect.dart';
-
-typedef void Foo<T>(T t);
-typedef void Bar(int i);
-
-void bar(int i) {}
-
-void main() {
-  Expect.throws(() => bar as Foo);
-  Expect.throws(() => bar as Foo<bool>);
-  Expect.isNotNull(bar as Foo<int>);
-  Expect.isNotNull(bar as Bar);
-}
diff --git a/tests/language_2/function_subtype/cast1_test.dart b/tests/language_2/function_subtype/cast1_test.dart
deleted file mode 100644
index d98d2cb7db5..00000000000
--- a/tests/language_2/function_subtype/cast1_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping casts.
-
-import 'package:expect/expect.dart';
-
-typedef void Foo<T>(T t);
-typedef void Bar(int i);
-
-class Class<T> {
-  void bar(T i) {}
-}
-
-void main() {
-  Expect.isNotNull(new Class().bar as Foo);
-  Expect.isNotNull(new Class().bar as Foo<bool>);
-  Expect.isNotNull(new Class().bar as Foo<int>);
-  Expect.isNotNull(new Class().bar as Bar);
-
-  Expect.isNotNull(new Class<int>().bar as Foo);
-  Expect.isNotNull(new Class<int>().bar as Foo<bool>);
-  Expect.isNotNull(new Class<int>().bar as Foo<int>);
-  Expect.isNotNull(new Class<int>().bar as Bar);
-
-  Expect.isNotNull(new Class<bool>().bar as Foo);
-  Expect.isNotNull(new Class<bool>().bar as Foo<bool>);
-  Expect.isNotNull(new Class<bool>().bar as Foo<int>);
-  Expect.isNotNull(new Class<bool>().bar as Bar);
-}
diff --git a/tests/language_2/function_subtype/cast2_test.dart b/tests/language_2/function_subtype/cast2_test.dart
deleted file mode 100644
index b71394ffa17..00000000000
--- a/tests/language_2/function_subtype/cast2_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping casts.
-
-import 'package:expect/expect.dart';
-
-typedef void Foo<T>(T t);
-typedef void Bar(int i);
-
-class Class<T> {
-  test(bool expectedResult, var o, String typeName) {
-    if (expectedResult) {
-      Expect.isNotNull(o as Foo<T>, "bar as Foo<$typeName>");
-    } else {
-      Expect.throws(() => o as Foo<T>, (e) => true, "bar as Foo<$typeName>");
-    }
-    Expect.isNotNull(o as Bar, "bar as Bar");
-  }
-}
-
-void bar(int i) {}
-
-void main() {
-  new Class<dynamic>().test(false, bar, "dynamic");
-  new Class<Object>().test(false, bar, "Object");
-  new Class<Null>().test(true, bar, "Null");
-  new Class<int>().test(true, bar, "int");
-  new Class<bool>().test(false, bar, "bool");
-}
diff --git a/tests/language_2/function_subtype/cast3_test.dart b/tests/language_2/function_subtype/cast3_test.dart
deleted file mode 100644
index 801f0fee580..00000000000
--- a/tests/language_2/function_subtype/cast3_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping casts.
-
-import 'package:expect/expect.dart';
-
-typedef void Foo<T>(T t);
-typedef void Bar(int i);
-
-class Class<T> {
-  test(bool expectedResult, var o, String typeName) {
-    void local() {
-      if (expectedResult) {
-        Expect.isNotNull(o as Foo<T>, "bar as Foo<$typeName>");
-      } else {
-        Expect.throws(() => o as Foo<T>, (e) => true, "bar as Foo<$typeName>");
-      }
-      Expect.isNotNull(o as Bar, "bar as Bar");
-    }
-
-    local();
-  }
-}
-
-void bar(int i) {}
-
-void main() {
-  new Class<dynamic>().test(false, bar, "dynamic");
-  new Class<Object>().test(false, bar, "Object");
-  new Class<int>().test(true, bar, "int");
-  new Class<bool>().test(false, bar, "bool");
-}
diff --git a/tests/language_2/function_subtype/checked0_test.dart b/tests/language_2/function_subtype/checked0_test.dart
deleted file mode 100644
index 9cc46deadfe..00000000000
--- a/tests/language_2/function_subtype/checked0_test.dart
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping of typedef vs. inlined function types.
-
-import 'package:expect/expect.dart';
-
-typedef int Foo<T>(T a, [String b]);
-typedef int Bar<T>(T a, [String b]);
-typedef int Baz<T>(T a, {String b});
-typedef int Boz<T>(T a);
-
-int fooF(bool a, [String b]) => null;
-int bazF(bool a, {String b}) => null;
-int bozF(bool a, {int b}) => null;
-
-class C<T> {
-  void test1a(Foo<T> f) {}
-  void test1b(Bar<T> f) {}
-  void test1c(int f(T a, [String b])) {}
-
-  void test2a(Baz<T> f) {}
-  void test2b(int f(T a, {String b})) {}
-
-  void test3a(Boz<T> f) {}
-  void test3b(int f(T a)) {}
-
-  void test(String nameOfT, bool expectedResult) {
-    check(bool expectedResult, f()) {
-      if (!expectedResult) {
-        Expect.throwsTypeError(f);
-      } else {
-        f();
-      }
-    }
-
-    dynamic foo = fooF, baz = bazF, boz = bozF;
-
-    check(expectedResult, () => test1a(foo));
-    check(expectedResult, () => test1b(foo));
-    check(expectedResult, () => test1b(foo));
-    check(false, () => test2a(foo));
-    check(false, () => test2b(foo));
-    check(expectedResult, () => test3a(foo));
-    check(expectedResult, () => test3b(foo));
-
-    check(false, () => test1a(baz));
-    check(false, () => test1b(baz));
-    check(false, () => test1b(baz));
-    check(expectedResult, () => test2a(baz));
-    check(expectedResult, () => test2b(baz));
-    check(expectedResult, () => test3a(baz));
-    check(expectedResult, () => test3b(baz));
-
-    check(false, () => test1a(boz));
-    check(false, () => test1b(boz));
-    check(false, () => test1b(boz));
-    check(false, () => test2a(boz));
-    check(false, () => test2b(boz));
-    check(expectedResult, () => test3a(boz));
-    check(expectedResult, () => test3b(boz));
-  }
-}
-
-main() {
-  new C<bool>().test('bool', true);
-  new C<int>().test('int', false);
-  new C<dynamic>().test('dynamic', false);
-  new C<Object>().test('Object', false);
-  new C<Null>().test('Null', true);
-}
diff --git a/tests/language_2/function_subtype/closure0_test.dart b/tests/language_2/function_subtype/closure0_test.dart
deleted file mode 100644
index 4bc8462b0d5..00000000000
--- a/tests/language_2/function_subtype/closure0_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping of static functions.
-
-import 'package:expect/expect.dart';
-
-typedef I<T> f2<T>();
-
-class X {
-  static J<bool> f1() => null;
-}
-
-class C<T> {
-  C(f2<T> f);
-}
-
-class I<T> {}
-
-class J<T> extends I<int> {}
-
-main() {
-  new C<int>(X.f1);
-  Expect.throwsTypeError(() => new C<bool>(X.f1 as dynamic));
-}
diff --git a/tests/language_2/function_subtype/closure1_test.dart b/tests/language_2/function_subtype/closure1_test.dart
deleted file mode 100644
index 8f1fccfd2e3..00000000000
--- a/tests/language_2/function_subtype/closure1_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping of dynamic closures.
-
-import 'package:expect/expect.dart';
-
-typedef I<T> f2<T>();
-
-class X {
-  J<bool> f1() => null;
-}
-
-class C<T> {
-  C(f2<T> f);
-}
-
-class I<T> {}
-
-class J<T> extends I<int> {}
-
-main() {
-  new C<int>(new X().f1);
-  Expect.throwsTypeError(() => new C<bool>(new X().f1 as dynamic));
-}
diff --git a/tests/language_2/function_subtype/factory0_test.dart b/tests/language_2/function_subtype/factory0_test.dart
deleted file mode 100644
index acda285f6df..00000000000
--- a/tests/language_2/function_subtype/factory0_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping with type variables in factory constructors.
-
-import 'package:expect/expect.dart';
-
-typedef void Foo<T>(T t);
-
-class C<T> {
-  factory C(foo) {
-    if (foo is Foo<T>) {
-      return new C.internal();
-    }
-    return null;
-  }
-  C.internal();
-}
-
-void method(String s) {}
-
-void main() {
-  Expect.isNotNull(new C<String>(method));
-  Expect.isNull(new C<bool>(method));
-}
diff --git a/tests/language_2/function_subtype/factory1_test.dart b/tests/language_2/function_subtype/factory1_test.dart
deleted file mode 100644
index 79f8e9a2d96..00000000000
--- a/tests/language_2/function_subtype/factory1_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping with type variables in factory constructors.
-
-import 'package:expect/expect.dart';
-
-class C<T> {
-  factory C(void foo(T t)) => new C.internal();
-  C.internal();
-}
-
-void method(String s) {}
-
-void main() {
-  Expect.isNotNull(new C<String>(method));
-  Expect.throwsTypeError(() => new C<bool>(method as dynamic));
-}
diff --git a/tests/language_2/function_subtype/function_subtype0_test.dart b/tests/language_2/function_subtype/function_subtype0_test.dart
deleted file mode 100644
index 86fdab10cb5..00000000000
--- a/tests/language_2/function_subtype/function_subtype0_test.dart
+++ /dev/null
@@ -1,89 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping.
-
-import 'package:expect/expect.dart';
-
-typedef t__();
-typedef void t_void_();
-typedef void t_void_2();
-typedef int t_int_();
-typedef int t_int_2();
-typedef Object t_Object_();
-typedef double t_double_();
-typedef void t_void__int(int i);
-typedef int t_int__int(int i);
-typedef int t_int__int2(int i);
-typedef int t_int__Object(Object o);
-typedef Object t_Object__int(int i);
-typedef int t_int__double(double d);
-typedef int t_int__int_int(int i1, int i2);
-typedef void t_inline_void_(void f());
-typedef void t_inline_void__int(void f(int i));
-
-void _() => null;
-void void_() {}
-void void_2() {}
-int int_() => 0;
-int int_2() => 0;
-Object Object_() => null;
-double double_() => 0.0;
-void void__int(int i) {}
-int int__int(int i) => 0;
-int int__int2(int i) => 0;
-int int__Object(Object o) => 0;
-Object Object__int(int i) => null;
-int int__double(double d) => 0;
-int int__int_int(int i1, int i2) => 0;
-void inline_void_(void f()) {}
-void inline_void__int(void f(int i)) {}
-
-main() {
-  // () -> int <: Function
-  Expect.isTrue(int_ is Function);
-  // () -> dynamic <: () -> dynamic
-  Expect.isTrue(_ is t__);
-  // () -> dynamic <: () -> void
-  Expect.isTrue(_ is t_void_);
-  // () -> void <: () -> dynamic
-  Expect.isTrue(void_ is t__);
-  // () -> int <: () -> void
-  Expect.isTrue(int_ is t_void_);
-  // () -> void <: () -> int
-  Expect.isFalse(void_ is t_int_);
-  // () -> void <: () -> void
-  Expect.isTrue(void_ is t_void_2);
-  // () -> int <: () -> int
-  Expect.isTrue(int_ is t_int_2);
-  // () -> int <: () -> Object
-  Expect.isTrue(int_ is t_Object_);
-  // () -> int <: () -> double
-  Expect.isFalse(int_ is t_double_);
-  // () -> int <: (int) -> void
-  Expect.isFalse(int_ is t_void__int);
-  // () -> void <: (int) -> int
-  Expect.isFalse(void_ is t_int__int);
-  // () -> void <: (int) -> void
-  Expect.isFalse(void_ is t_void__int);
-  // (int) -> int <: (int) -> int
-  Expect.isTrue(int__int is t_int__int2);
-  // (Object) -> int <: (int) -> Object
-  Expect.isTrue(int__Object is t_Object__int);
-  // (int) -> int <: (double) -> int
-  Expect.isFalse(int__int is t_int__double);
-  // () -> int <: (int) -> int
-  Expect.isFalse(int_ is t_int__int);
-  // (int) -> int <: (int,int) -> int
-  Expect.isFalse(int__int is t_int__int_int);
-  // (int,int) -> int <: (int) -> int
-  Expect.isFalse(int__int_int is t_int__int);
-  // (()->void) -> void <: ((int)->void) -> void
-  Expect.isFalse(inline_void_ is t_inline_void__int);
-  // ((int)->void) -> void <: (()->void) -> void
-  Expect.isFalse(inline_void__int is t_inline_void_);
-}
diff --git a/tests/language_2/function_subtype/function_subtype1_test.dart b/tests/language_2/function_subtype/function_subtype1_test.dart
deleted file mode 100644
index b7b7b652ffd..00000000000
--- a/tests/language_2/function_subtype/function_subtype1_test.dart
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping.
-
-import 'package:expect/expect.dart';
-
-class C<T> {}
-
-typedef _();
-typedef void void_();
-typedef void void_2();
-typedef int int_();
-typedef int int_2();
-typedef Object Object_();
-typedef double double_();
-typedef void void__int(int i);
-typedef int int__int(int i);
-typedef int int__int2(int i);
-typedef int int__Object(Object o);
-typedef Object Object__int(int i);
-typedef int int__double(double d);
-typedef int int__int_int(int i1, int i2);
-typedef void inline_void_(void f());
-typedef void inline_void__int(void f(int i));
-
-main() {
-  // () -> int <: Function
-  Expect.isTrue(new C<int_>() is C<Function>);
-  // Function <: () -> int
-  Expect.isFalse(new C<Function>() is C<int_>);
-  // () -> dynamic <: () -> dynamic
-  Expect.isTrue(new C<_>() is C<_>);
-  // () -> dynamic <: () -> void
-  Expect.isTrue(new C<_>() is C<void_>);
-  // () -> void <: () -> dynamic
-  Expect.isTrue(new C<void_>() is C<_>);
-  // () -> int <: () -> void
-  Expect.isTrue(new C<int_>() is C<void_>);
-  // () -> void <: () -> int
-  Expect.isFalse(new C<void_>() is C<int_>);
-  // () -> void <: () -> void
-  Expect.isTrue(new C<void_>() is C<void_2>);
-  // () -> int <: () -> int
-  Expect.isTrue(new C<int_>() is C<int_2>);
-  // () -> int <: () -> Object
-  Expect.isTrue(new C<int_>() is C<Object_>);
-  // () -> int <: () -> double
-  Expect.isFalse(new C<int_>() is C<double_>);
-  // () -> int <: (int) -> void
-  Expect.isFalse(new C<int_>() is C<void__int>);
-  // () -> void <: (int) -> int
-  Expect.isFalse(new C<void_>() is C<int__int>);
-  // () -> void <: (int) -> void
-  Expect.isFalse(new C<void_>() is C<void__int>);
-  // (int) -> int <: (int) -> int
-  Expect.isTrue(new C<int__int>() is C<int__int2>);
-  // (Object) -> int <: (int) -> Object
-  Expect.isTrue(new C<int__Object>() is C<Object__int>);
-  // (int) -> int <: (double) -> int
-  Expect.isFalse(new C<int__int>() is C<int__double>);
-  // () -> int <: (int) -> int
-  Expect.isFalse(new C<int_>() is C<int__int>);
-  // (int) -> int <: (int,int) -> int
-  Expect.isFalse(new C<int__int>() is C<int__int_int>);
-  // (int,int) -> int <: (int) -> int
-  Expect.isFalse(new C<int__int_int>() is C<int__int>);
-  // (()->void) -> void <: ((int)->void) -> void
-  Expect.isFalse(new C<inline_void_>() is C<inline_void__int>);
-  // ((int)->void) -> void <: (()->void) -> void
-  Expect.isFalse(new C<inline_void__int>() is C<inline_void_>);
-}
diff --git a/tests/language_2/function_subtype/function_subtype2_test.dart b/tests/language_2/function_subtype/function_subtype2_test.dart
deleted file mode 100644
index c4bc6246e09..00000000000
--- a/tests/language_2/function_subtype/function_subtype2_test.dart
+++ /dev/null
@@ -1,142 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping for optional parameters.
-
-import 'package:expect/expect.dart';
-
-typedef void T1(int a, int b);
-typedef void T2(int a, [int b]);
-typedef void T3([int a, int b]);
-typedef void T4(int a, [int b, int c]);
-typedef void T5([int a, int b, int c]);
-
-class C<T, S, U> {
-  get m1 => (T a, S b) {};
-  get m2 => (T a, [S b]) {};
-  get m3 => ([T a, S b]) {};
-  get m4 => (T a, [S b, U c]) {};
-  get m5 => ([T a, S b, U c]) {};
-}
-
-main() {
-  var c1 = new C<int, int, int>();
-  Expect.isTrue(c1.m1 is T1, "(int,int)->void is (int,int)->void");
-  Expect.isFalse(c1.m1 is T2, "(int,int)->void is not (int,[int])->void");
-  Expect.isFalse(c1.m1 is T3, "(int,int)->void is not ([int,int])->void");
-  Expect.isFalse(c1.m1 is T4, "(int,int)->void is not (int,[int,int])->void");
-  Expect.isFalse(c1.m1 is T5, "(int,int)->void is not ([int,int,int])->void");
-
-  Expect.isTrue(c1.m2 is T1, "(int,[int])->void is (int,int)->void");
-  Expect.isTrue(c1.m2 is T2, "(int,[int])->void is (int,[int])->void");
-  Expect.isFalse(c1.m2 is T3, "(int,[int])->void is not ([int,int])->void");
-  Expect.isFalse(c1.m2 is T4, "(int,[int])->void is not (int,[int,int])->void");
-  Expect.isFalse(c1.m2 is T5, "(int,[int])->void is not ([int,int,int])->void");
-
-  Expect.isTrue(c1.m3 is T1, "([int,int])->void is (int,int)->void");
-  Expect.isTrue(c1.m3 is T2, "([int,int])->void is (int,[int])->void");
-  Expect.isTrue(c1.m3 is T3, "([int,int])->void is ([int,int])->void");
-  Expect.isFalse(c1.m3 is T4, "([int,int])->void is not (int,[int,int])->void");
-  Expect.isFalse(c1.m3 is T5, "([int,int])->void is not ([int,int,int])->void");
-
-  Expect.isTrue(c1.m4 is T1, "(int,[int,int])->void is (int,int)->void");
-  Expect.isTrue(c1.m4 is T2, "(int,[int,int])->void is (int,[int])->void");
-  Expect.isFalse(c1.m4 is T3, "(int,[int,int])->void is not ([int,int])->void");
-  Expect.isTrue(c1.m4 is T4, "(int,[int,int])->void is (int,[int,int])->void");
-  Expect.isFalse(
-      c1.m4 is T5, "(int,[int,int])->void is not ([int,int,int])->void");
-
-  Expect.isTrue(c1.m5 is T1, "([int,int,int])->void is (int,int)->void");
-  Expect.isTrue(c1.m5 is T2, "([int,int,int])->void is (int,[int])->void");
-  Expect.isTrue(c1.m5 is T3, "([int,int,int])->void is ([int,int])->void");
-  Expect.isTrue(c1.m5 is T4, "([int,int,int])->void is (int,[int,int])->void");
-  Expect.isTrue(c1.m5 is T5, "([int,int,int])->void is ([int,int,int])->void");
-
-  var c2 = new C<int, double, int>();
-  Expect.isFalse(c2.m1 is T1, "(int,double)->void is not (int,int)->void");
-  Expect.isFalse(
-      c2.m1 is T2, "(int,double)->void is not (int,[int])->void");
-  Expect.isFalse(c2.m1 is T3, "(int,double)->void is not ([int,int])->void");
-  Expect.isFalse(
-      c2.m1 is T4, "(int,double)->void is not (int,[int,int])->void");
-  Expect.isFalse(
-      c2.m1 is T5, "(int,double)->void is not ([int,int,int])->void");
-
-  Expect.isFalse(c2.m2 is T1, "(int,[double])->void is not (int,int)->void");
-  Expect.isFalse(c2.m2 is T2, "(int,[double])->void is not (int,[int])->void");
-  Expect.isFalse(c2.m2 is T3, "(int,[double])->void is not ([int,int])->void");
-  Expect.isFalse(
-      c2.m2 is T4, "(int,[double])->void is not (int,[int,int])->void");
-  Expect.isFalse(
-      c2.m2 is T5, "(int,[double])->void is not ([int,int,int])->void");
-
-  Expect.isFalse(c2.m3 is T1, "([int,double])->void is not (int,int)->void");
-  Expect.isFalse(c2.m3 is T2, "([int,double])->void is not (int,[int])->void");
-  Expect.isFalse(c2.m3 is T3, "([int,double])->void is not ([int,int])->void");
-  Expect.isFalse(
-      c2.m3 is T4, "([int,double])->void is not (int,[int,int])->void");
-  Expect.isFalse(
-      c2.m3 is T5, "([int,double])->void is not ([int,int,int])->void");
-
-  Expect.isFalse(
-      c2.m4 is T1, "(int,[double,int])->void is not (int,int)->void");
-  Expect.isFalse(
-      c2.m4 is T2, "(int,[double,int])->void is not (int,[int])->void");
-  Expect.isFalse(
-      c2.m4 is T3, "(int,[double,int])->void is not ([int,int])->void");
-  Expect.isFalse(
-      c2.m4 is T4, "(int,[double,int])->void is (int,[int,int])->void");
-  Expect.isFalse(
-      c2.m4 is T5, "(int,[double,int])->void is ([int,int,int])->void");
-
-  Expect.isFalse(
-      c2.m5 is T1, "([int,double,int])->void is not (int,int)->void");
-  Expect.isFalse(
-      c2.m5 is T2, "([int,double,int])->void is not (int,[int])->void");
-  Expect.isFalse(
-      c2.m5 is T3, "([int,double,int])->void is not ([int,int])->void");
-  Expect.isFalse(
-      c2.m5 is T4, "([int,double,int])->void is (int,[int,int])->void");
-  Expect.isFalse(
-      c2.m5 is T5, "([int,double,int])->void is ([int,int,int])->void");
-
-  var c3 = new C<int, int, double>();
-  Expect.isTrue(c3.m1 is T1, "(int,int)->void is (int,int)->void");
-  Expect.isFalse(c3.m1 is T2, "(int,int)->void is not (int,[int])->void");
-  Expect.isFalse(c3.m1 is T3, "(int,int)->void is not ([int,int])->void");
-  Expect.isFalse(c3.m1 is T4, "(int,int)->void is not (int,[int,int])->void");
-  Expect.isFalse(c3.m1 is T5, "(int,int)->void is not ([int,int,int])->void");
-
-  Expect.isTrue(c3.m2 is T1, "(int,[int])->void is (int,int)->void");
-  Expect.isTrue(c3.m2 is T2, "(int,[int])->void is (int,[int])->void");
-  Expect.isFalse(c3.m2 is T3, "(int,[int])->void is not ([int,int])->void");
-  Expect.isFalse(c3.m2 is T4, "(int,[int])->void is not (int,[int,int])->void");
-  Expect.isFalse(c3.m2 is T5, "(int,[int])->void is not ([int,int,int])->void");
-
-  Expect.isTrue(c3.m3 is T1, "([int,int])->void is (int,int)->void");
-  Expect.isTrue(c3.m3 is T2, "([int,int])->void is (int,[int])->void");
-  Expect.isTrue(c3.m3 is T3, "([int,int])->void is ([int,int])->void");
-  Expect.isFalse(c3.m3 is T4, "([int,int])->void is not (int,[int,int])->void");
-  Expect.isFalse(c3.m3 is T5, "([int,int])->void is not ([int,int,int])->void");
-
-  Expect.isTrue(c3.m4 is T1, "(int,[int,double])->void is (int,int)->void");
-  Expect.isTrue(c3.m4 is T2, "(int,[int,double])->void is (int,[int])->void");
-  Expect.isFalse(
-      c3.m4 is T3, "(int,[int,double])->void is not ([int,int])->void");
-  Expect.isFalse(
-      c3.m4 is T4, "(int,[int,double])->void is (int,[int,int])->void");
-  Expect.isFalse(
-      c3.m4 is T5, "(int,[int,double])->void is ([int,int,int])->void");
-
-  Expect.isTrue(c3.m5 is T1, "([int,int,double])->void is (int,int)->void");
-  Expect.isTrue(c3.m5 is T2, "([int,int,double])->void is (int,[int])->void");
-  Expect.isTrue(c3.m5 is T3, "([int,int,double])->void is ([int,int])->void");
-  Expect.isFalse(
-      c3.m5 is T4, "([int,int,double])->void is (int,[int,int])->void");
-  Expect.isFalse(
-      c3.m5 is T5, "([int,int,double])->void is ([int,int,int])->void");
-}
diff --git a/tests/language_2/function_subtype/function_subtype3_test.dart b/tests/language_2/function_subtype/function_subtype3_test.dart
deleted file mode 100644
index 9a7f30a447f..00000000000
--- a/tests/language_2/function_subtype/function_subtype3_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class FunctionLike<T> {
-  T call(T arg) {
-    return arg;
-  }
-}
-
-class Foo<T> {
-  testString() => new FunctionLike<String>() is T;
-  testInt() => new FunctionLike<int>() is T;
-}
-
-class Bar<T> {
-  testString() {
-    Function f = new FunctionLike<String>();
-    return f is T;
-  }
-
-  testInt() {
-    Function f = new FunctionLike<int>();
-    return f is T;
-  }
-}
-
-typedef String ReturnString(Object arg);
-typedef int ReturnInt(Object arg);
-
-main() {
-  {
-    var stringFoo = new Foo<ReturnString>();
-    var intFoo = new Foo<ReturnInt>();
-    Expect.isFalse(stringFoo.testString());
-    Expect.isFalse(stringFoo.testInt());
-    Expect.isFalse(intFoo.testString());
-    Expect.isFalse(intFoo.testInt());
-  }
-
-  {
-    var stringBar = new Bar<ReturnString>();
-    var intBar = new Bar<ReturnInt>();
-    Expect.isTrue(stringBar.testString());
-    Expect.isFalse(stringBar.testInt());
-    Expect.isFalse(intBar.testString());
-    Expect.isTrue(intBar.testInt());
-  }
-}
diff --git a/tests/language_2/function_subtype/inline0_test.dart b/tests/language_2/function_subtype/inline0_test.dart
deleted file mode 100644
index 19edeedae20..00000000000
--- a/tests/language_2/function_subtype/inline0_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping for generic bound closures.
-
-import 'package:expect/expect.dart';
-
-typedef void Foo(bool a, [String b]);
-typedef void Bar(bool a, [String b]);
-typedef void Baz(bool a, {String b});
-typedef int Boz(bool a);
-
-class C<T> {
-  void test(String nameOfT, bool expectedResult) {
-    Expect.equals(expectedResult, (T a, [String b]) {} is Foo,
-        '($nameOfT,[String])->void is Foo');
-    Expect.equals(expectedResult, (T a, [String b]) {} is Bar,
-        '($nameOfT,[String])->void is Bar');
-    Expect.isFalse(
-        (T a, [String b]) {} is Baz, '($nameOfT,[String])->void is Baz');
-    Expect.equals(expectedResult, (T a, [String b]) {} is Boz,
-        '($nameOfT,[String])->void is Boz');
-
-    Expect.isFalse(
-        (T a, {String b}) {} is Foo, '($nameOfT,{b:String})->void is Foo');
-    Expect.isFalse(
-        (T a, {String b}) {} is Bar, '($nameOfT,{b:String})->void is Bar');
-    Expect.equals(expectedResult, (T a, {String b}) {} is Baz,
-        '($nameOfT,{b:String})->void is Baz');
-    Expect.equals(expectedResult, (T a, {String b}) {} is Boz,
-        '($nameOfT,{b:String})->void is Boz');
-  }
-}
-
-main() {
-  new C<bool>().test('bool', true);
-  new C<int>().test('int', false);
-  new C<dynamic>().test('dynamic', true);
-}
diff --git a/tests/language_2/function_subtype/inline1_test.dart b/tests/language_2/function_subtype/inline1_test.dart
deleted file mode 100644
index 55e14142e99..00000000000
--- a/tests/language_2/function_subtype/inline1_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping.
-
-import 'package:expect/expect.dart';
-
-class A {}
-
-class B extends A {}
-
-class C extends A {}
-
-class Class<K, V> {
-  void forEach(void f(K k, V v)) {}
-}
-
-main() {
-  Class<B, C> c = new Class<B, C>();
-  c.forEach((A a, A b) {});
-  c.forEach((B a, C b) {});
-  Expect.throwsTypeError(() => c.forEach((A a, B b) {} as dynamic));
-}
diff --git a/tests/language_2/function_subtype/inline2_test.dart b/tests/language_2/function_subtype/inline2_test.dart
deleted file mode 100644
index 95a9e9249f0..00000000000
--- a/tests/language_2/function_subtype/inline2_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping of inlined function typed parameters.
-
-import '../dynamic_type_helper.dart';
-
-class C {
-  var field;
-  C.c1(int this.field());
-  C.c2({int this.field()});
-  C.c3({int field(): null});
-  C.c4({int this.field(): null});
-  C.c5([int this.field()]);
-  C.c6([int field() = null]);
-  C.c7([int this.field() = null]);
-}
-
-void test(var f, String constructorName) {
-  testDynamicTypeError(false, () => f(m1), "'new C.$constructorName(m1)'");
-  testDynamicTypeError(true, () => f(m2), "'new C.$constructorName(m2)'");
-  testDynamicTypeError(false, () => f(m3), "'new C.$constructorName(m3)'");
-  testDynamicTypeError(true, () => f(m4), "'new C.$constructorName(m4)'");
-}
-
-int m1() => null;
-String m2() => null;
-Null m3() => null;
-Null m4(int i) => null;
-
-main() {
-  test((m) => new C.c1(m), 'c1');
-  test((m) => new C.c2(field: m), 'c2');
-  test((m) => new C.c3(field: m), 'c3');
-  test((m) => new C.c4(field: m), 'c4');
-  test((m) => new C.c5(m), 'c5');
-  test((m) => new C.c6(m), 'c6');
-  test((m) => new C.c7(m), 'c7');
-}
diff --git a/tests/language_2/function_subtype/local0_test.dart b/tests/language_2/function_subtype/local0_test.dart
deleted file mode 100644
index f8805c2abae..00000000000
--- a/tests/language_2/function_subtype/local0_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping for local functions.
-
-import 'package:expect/expect.dart';
-
-typedef int Foo(bool a, [String b]);
-typedef int Bar(bool a, [String b]);
-typedef int Baz(bool a, {String b});
-typedef int Boz(bool a);
-
-main() {
-  int foo(bool a, [String b]) => null;
-  int baz(bool a, {String b}) => null;
-  int boz(bool a, {int b}) => null;
-
-  Expect.isTrue(foo is Foo, 'foo is Foo');
-  Expect.isTrue(foo is Bar, 'foo is Bar');
-  Expect.isFalse(foo is Baz, 'foo is Baz');
-  Expect.isTrue(foo is Boz, 'foo is Boz');
-
-  Expect.isFalse(baz is Foo, 'baz is Foo');
-  Expect.isFalse(baz is Bar, 'baz is Bar');
-  Expect.isTrue(baz is Baz, 'baz is Baz');
-  Expect.isTrue(baz is Boz, 'baz is Boz');
-
-  Expect.isFalse(boz is Foo, 'boz is Foo');
-  Expect.isFalse(boz is Bar, 'boz is Bar');
-  Expect.isFalse(boz is Baz, 'boz is Baz');
-  Expect.isTrue(boz is Boz, 'boz is Boz');
-}
diff --git a/tests/language_2/function_subtype/local1_test.dart b/tests/language_2/function_subtype/local1_test.dart
deleted file mode 100644
index 9f05b289ee3..00000000000
--- a/tests/language_2/function_subtype/local1_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping for local functions against generic typedefs.
-
-import 'package:expect/expect.dart';
-
-typedef int Foo<T>(T a, [String b]);
-typedef int Bar<T>(T a, [String b]);
-typedef int Baz<T>(T a, {String b});
-typedef int Boz<T>(T a);
-
-main() {
-  int foo(bool a, [String b]) => null;
-  int baz(bool a, {String b}) => null;
-
-  Expect.isTrue(foo is Foo<bool>, 'foo is Foo<bool>');
-  Expect.isTrue(foo is Bar<bool>, 'foo is Bar<bool>');
-  Expect.isFalse(foo is Baz<bool>, 'foo is Baz<bool>');
-  Expect.isTrue(foo is Boz<bool>, 'foo is Boz<bool>');
-
-  Expect.isFalse(foo is Foo<int>, 'foo is Foo<int>');
-  Expect.isFalse(foo is Bar<int>, 'foo is Bar<int>');
-  Expect.isFalse(foo is Baz<int>, 'foo is Baz<int>');
-  Expect.isFalse(foo is Boz<int>, 'foo is Boz<int>');
-
-  Expect.isFalse(foo is Foo, 'foo is Foo');
-  Expect.isFalse(foo is Bar, 'foo is Bar');
-  Expect.isFalse(foo is Baz, 'foo is Baz');
-  Expect.isFalse(foo is Boz, 'foo is Boz');
-
-  Expect.isFalse(baz is Foo<bool>, 'baz is Foo<bool>');
-  Expect.isFalse(baz is Bar<bool>, 'baz is Bar<bool>');
-  Expect.isTrue(baz is Baz<bool>, 'baz is Baz<bool>');
-  Expect.isTrue(baz is Boz<bool>, 'baz is Boz<bool>');
-
-  Expect.isFalse(baz is Foo<int>, 'baz is Foo<int>');
-  Expect.isFalse(baz is Bar<int>, 'baz is Bar<int>');
-  Expect.isFalse(baz is Baz<int>, 'baz is Baz<int>');
-  Expect.isFalse(baz is Boz<int>, 'baz is Boz<int>');
-
-  Expect.isFalse(baz is Foo, 'baz is Foo');
-  Expect.isFalse(baz is Bar, 'baz is Bar');
-  Expect.isFalse(baz is Baz, 'baz is Baz');
-  Expect.isFalse(baz is Boz, 'baz is Boz');
-}
diff --git a/tests/language_2/function_subtype/local2_test.dart b/tests/language_2/function_subtype/local2_test.dart
deleted file mode 100644
index 7ea39c88fa3..00000000000
--- a/tests/language_2/function_subtype/local2_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping for local functions on generic type against generic
-// typedefs.
-
-import 'package:expect/expect.dart';
-
-typedef int Foo<T>(T a, [String b]);
-typedef int Bar<T>(T a, [String b]);
-typedef int Baz<T>(T a, {String b});
-typedef int Boz<T>(T a);
-typedef int Biz<T>(T a, int b);
-
-class C<T> {
-  void test(String nameOfT, bool expectedResult) {
-    int foo(bool a, [String b]) => null;
-    int baz(bool a, {String b}) => null;
-
-    Expect.equals(expectedResult, foo is Foo<T>, 'foo is Foo<$nameOfT>');
-    Expect.equals(expectedResult, foo is Bar<T>, 'foo is Bar<$nameOfT>');
-    Expect.isFalse(foo is Baz<T>, 'foo is Baz<$nameOfT>');
-    Expect.equals(expectedResult, foo is Boz<T>, 'foo is Boz<$nameOfT>');
-    Expect.isFalse(foo is Biz<T>, 'foo is Biz<$nameOfT>');
-
-    Expect.isFalse(baz is Foo<T>, 'baz is Foo<$nameOfT>');
-    Expect.isFalse(baz is Bar<T>, 'baz is Bar<$nameOfT>');
-    Expect.equals(expectedResult, baz is Baz<T>, 'baz is Baz<$nameOfT>');
-    Expect.equals(expectedResult, baz is Boz<T>, 'baz is Boz<$nameOfT>');
-    Expect.isFalse(baz is Biz<T>, 'bar is Biz<$nameOfT>');
-  }
-}
-
-main() {
-  new C<bool>().test('bool', true);
-  new C<int>().test('int', false);
-  new C<dynamic>().test('dynamic', false);
-  new C<Object>().test('Object', false);
-  new C<Null>().test('Null', true);
-}
diff --git a/tests/language_2/function_subtype/local3_test.dart b/tests/language_2/function_subtype/local3_test.dart
deleted file mode 100644
index dcb9d9a79b1..00000000000
--- a/tests/language_2/function_subtype/local3_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping for generic bound closures.
-
-import 'package:expect/expect.dart';
-
-typedef void Foo(bool a, [String b]);
-typedef void Bar(bool a, [String b]);
-typedef void Baz(bool a, {String b});
-typedef int Boz(bool a);
-
-class C<T> {
-  void test(String nameOfT, bool expectedResult) {
-    void foo(T a, [String b]) {}
-    void baz(T a, {String b}) {}
-
-    Expect.equals(expectedResult, foo is Foo, 'C<$nameOfT>.foo is Foo');
-    Expect.equals(expectedResult, foo is Bar, 'C<$nameOfT>.foo is Bar');
-    Expect.isFalse(foo is Baz, 'C<$nameOfT>.foo is Baz');
-    Expect.isFalse(foo is Boz, 'C<$nameOfT>.foo is Boz');
-
-    Expect.isFalse(baz is Foo, 'C<$nameOfT>.baz is Foo');
-    Expect.isFalse(baz is Bar, 'C<$nameOfT>.baz is Bar');
-    Expect.equals(expectedResult, baz is Baz, 'C<$nameOfT>.baz is Baz');
-    Expect.isFalse(baz is Boz, 'C<$nameOfT>.baz is Boz');
-  }
-}
-
-main() {
-  new C<bool>().test('bool', true);
-  new C<int>().test('int', false);
-  new C<dynamic>().test('dynamic', true);
-}
diff --git a/tests/language_2/function_subtype/local4_test.dart b/tests/language_2/function_subtype/local4_test.dart
deleted file mode 100644
index 1a66f21f14e..00000000000
--- a/tests/language_2/function_subtype/local4_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping for generic bound closures. This also tests
-// type argument substitution.
-
-import 'package:expect/expect.dart';
-
-typedef void Foo(bool a, [String b]);
-typedef void Bar(bool a, [String b]);
-typedef void Baz(bool a, {String b});
-typedef int Boz(bool a);
-
-class C<T> {
-  void test(String nameOfT, bool expectedResult) {
-    void foo(T a, [String b]) {}
-    void baz(T a, {String b}) {}
-
-    Expect.equals(expectedResult, foo is Foo, 'C<$nameOfT>.foo is Foo');
-    Expect.equals(expectedResult, foo is Bar, 'C<$nameOfT>.foo is Bar');
-    Expect.isFalse(foo is Baz, 'C<$nameOfT>.foo is Baz');
-    Expect.isFalse(foo is Boz, 'C<$nameOfT>.foo is Boz');
-
-    Expect.isFalse(baz is Foo, 'C<$nameOfT>.baz is Foo');
-    Expect.isFalse(baz is Bar, 'C<$nameOfT>.baz is Bar');
-    Expect.equals(expectedResult, baz is Baz, 'C<$nameOfT>.baz is Baz');
-    Expect.isFalse(baz is Boz, 'C<$nameOfT>.baz is Boz');
-  }
-}
-
-class D<S, T> extends C<T> {}
-
-main() {
-  new D<String, bool>().test('bool', true);
-  new D<bool, int>().test('int', false);
-  new D().test('dynamic', true);
-}
diff --git a/tests/language_2/function_subtype/local5_test.dart b/tests/language_2/function_subtype/local5_test.dart
deleted file mode 100644
index 450174fc97a..00000000000
--- a/tests/language_2/function_subtype/local5_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping for local functions on generic type against generic
-// typedefs.
-
-import 'package:expect/expect.dart';
-
-typedef int Foo<T>(T a, [String b]);
-typedef int Bar<T>(T a, [String b]);
-typedef int Baz<T>(T a, {String b});
-typedef int Boz<T>(T a);
-typedef int Biz<T>(T a, int b);
-
-class C<T> {
-  void test(String nameOfT, bool expectedResult) {
-    int foo(bool a, [String b]) => null;
-    int baz(bool a, {String b}) => null;
-
-    Expect.equals(expectedResult, foo is Foo<T>, 'foo is Foo<$nameOfT>');
-    Expect.equals(expectedResult, foo is Bar<T>, 'foo is Bar<$nameOfT>');
-    Expect.isFalse(foo is Baz<T>, 'foo is Baz<$nameOfT>');
-    Expect.equals(expectedResult, foo is Boz<T>, 'foo is Boz<$nameOfT>');
-    Expect.isFalse(foo is Biz<T>, 'foo is Biz<$nameOfT>');
-
-    Expect.isFalse(baz is Foo<T>, 'baz is Foo<$nameOfT>');
-    Expect.isFalse(baz is Bar<T>, 'baz is Bar<$nameOfT>');
-    Expect.equals(expectedResult, baz is Baz<T>, 'baz is Baz<$nameOfT>');
-    Expect.equals(expectedResult, baz is Boz<T>, 'baz is Boz<$nameOfT>');
-    Expect.isFalse(baz is Biz<T>, 'bar is Biz<$nameOfT>');
-  }
-}
-
-class D<S, T> extends C<T> {}
-
-main() {
-  new D<String, bool>().test('bool', true);
-  new D<bool, int>().test('int', false);
-  new D<dynamic, dynamic>().test('dynamic', false);
-  new D<Object, Object>().test('Object', false);
-  new D<Null, Null>().test('Null', true);
-}
diff --git a/tests/language_2/function_subtype/local6_test.dart b/tests/language_2/function_subtype/local6_test.dart
deleted file mode 100644
index 9ef9ac65a57..00000000000
--- a/tests/language_2/function_subtype/local6_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-// VMOptions=--no-eliminate-type-checks
-
-// @dart = 2.9
-
-// Regression test for issue 12127.
-
-class C<T> {
-  void test() {
-    void foo(T a) {}
-  }
-}
-
-main() {
-  new C<bool>().test();
-}
diff --git a/tests/language_2/function_subtype/named1_test.dart b/tests/language_2/function_subtype/named1_test.dart
deleted file mode 100644
index 0934c5a610a..00000000000
--- a/tests/language_2/function_subtype/named1_test.dart
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping.
-
-import 'package:expect/expect.dart';
-
-void void_() {}
-void void__int(int i) {}
-void void___a_int({int a}) {}
-void void___a_int2({int a}) {}
-void void___b_int({int b}) {}
-void void___a_Object({Object a}) {}
-void void__int__a_int(int i1, {int a}) {}
-void void__int__a_int2(int i1, {int a}) {}
-void void___a_double({double a}) {}
-void void___a_int_b_int({int a, int b}) {}
-void void___a_int_b_int_c_int({int a, int b, int c}) {}
-void void___a_int_c_int({int a, int c}) {}
-void void___b_int_c_int({int b, int c}) {}
-void void___c_int({int c}) {}
-
-typedef void t_void_();
-typedef void t_void__int(int i);
-typedef void t_void___a_int({int a});
-typedef void t_void___a_int2({int a});
-typedef void t_void___b_int({int b});
-typedef void t_void___a_Object({Object a});
-typedef void t_void__int__a_int(int i1, {int a});
-typedef void t_void__int__a_int2(int i1, {int a});
-typedef void t_void___a_double({double a});
-typedef void t_void___a_int_b_int({int a, int b});
-typedef void t_void___a_int_b_int_c_int({int a, int b, int c});
-typedef void t_void___a_int_c_int({int a, int c});
-typedef void t_void___b_int_c_int({int b, int c});
-typedef void t_void___c_int({int c});
-
-main() {
-  // Test ({int a})->void <: ()->void.
-  Expect.isTrue(void___a_int is t_void_);
-  // Test ({int a})->void <: (int)->void.
-  Expect.isFalse(void___a_int is t_void__int);
-  // Test (int)->void <: ({int a})->void.
-  Expect.isFalse(void__int is t_void___a_int);
-  // Test ({int a})->void <: ({int a})->void.
-  Expect.isTrue(void___a_int is t_void___a_int2);
-  // Test ({int a})->void <: ({int b})->void.
-  Expect.isFalse(void___a_int is t_void___b_int);
-  // Test ({Object a})->void <: ({int a})->void.
-  Expect.isTrue(void___a_Object is t_void___a_int);
-  // Test ({int a})->void <: ({Object a})->void.
-  Expect.isFalse(void___a_int is t_void___a_Object);
-  // Test (int,{int a})->void <: (int,{int a})->void.
-  Expect.isTrue(void__int__a_int is t_void__int__a_int2);
-  // Test ({int a})->void <: ({double a})->void.
-  Expect.isFalse(void___a_int is t_void___a_double);
-  // Test ({int a})->void <: ({int a,int b})->void.
-  Expect.isFalse(void___a_int is t_void___a_int_b_int);
-  // Test ({int a,int b})->void <: ({int a})->void.
-  Expect.isTrue(void___a_int_b_int is t_void___a_int);
-  // Test ({int a,int b,int c})->void <: ({int a,int c})->void.
-  Expect.isTrue(void___a_int_b_int_c_int is t_void___a_int_c_int);
-  // Test ({int a,int b,int c})->void <: ({int b,int c})->void.
-  Expect.isTrue(void___a_int_b_int_c_int is t_void___b_int_c_int);
-  // Test ({int a,int b,int c})->void <: ({int c})->void.
-  Expect.isTrue(void___a_int_b_int_c_int is t_void___c_int);
-}
diff --git a/tests/language_2/function_subtype/named2_test.dart b/tests/language_2/function_subtype/named2_test.dart
deleted file mode 100644
index c24ec8dc672..00000000000
--- a/tests/language_2/function_subtype/named2_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping.
-
-import 'package:expect/expect.dart';
-
-class C<T> {}
-
-typedef void void_();
-typedef void void__int(int i);
-typedef void void___a_int({int a});
-typedef void void___a_int2({int a});
-typedef void void___b_int({int b});
-typedef void void___a_Object({Object a});
-typedef void void__int__a_int(int i1, {int a});
-typedef void void__int__a_int2(int i1, {int a});
-typedef void void___a_double({double a});
-typedef void void___a_int_b_int({int a, int b});
-typedef void void___a_int_b_int_c_int({int a, int b, int c});
-typedef void void___a_int_c_int({int a, int c});
-typedef void void___b_int_c_int({int b, int c});
-typedef void void___c_int({int c});
-
-main() {
-  // Test ({int a})->void <: ()->void.
-  Expect.isTrue(new C<void___a_int>() is C<void_>);
-  // Test ({int a})->void <: (int)->void.
-  Expect.isFalse(new C<void___a_int>() is C<void__int>);
-  // Test (int)->void <: ({int a})->void.
-  Expect.isFalse(new C<void__int>() is C<void___a_int>);
-  // Test ({int a})->void <: ({int a})->void.
-  Expect.isTrue(new C<void___a_int>() is C<void___a_int2>);
-  // Test ({int a})->void <: ({int b})->void.
-  Expect.isFalse(new C<void___a_int>() is C<void___b_int>);
-  // Test ({Object a})->void <: ({int a})->void.
-  Expect.isTrue(new C<void___a_Object>() is C<void___a_int>);
-  // Test ({int a})->void <: ({Object a})->void.
-  Expect.isFalse(new C<void___a_int>() is C<void___a_Object>);
-  // Test (int,{int a})->void <: (int,{int a})->void.
-  Expect.isTrue(new C<void__int__a_int>() is C<void__int__a_int2>);
-  // Test ({int a})->void <: ({double a})->void.
-  Expect.isFalse(new C<void___a_int>() is C<void___a_double>);
-  // Test ({int a})->void <: ({int a,int b})->void.
-  Expect.isFalse(new C<void___a_int>() is C<void___a_int_b_int>);
-  // Test ({int a,int b})->void <: ({int a})->void.
-  Expect.isTrue(new C<void___a_int_b_int>() is C<void___a_int>);
-  // Test ({int a,int b,int c})->void <: ({int a,int c})->void.
-  Expect.isTrue(new C<void___a_int_b_int_c_int>() is C<void___a_int_c_int>);
-  // Test ({int a,int b,int c})->void <: ({int b,int c})->void.
-  Expect.isTrue(new C<void___a_int_b_int_c_int>() is C<void___b_int_c_int>);
-  // Test ({int a,int b,int c})->void <: ({int c})->void.
-  Expect.isTrue(new C<void___a_int_b_int_c_int>() is C<void___c_int>);
-}
diff --git a/tests/language_2/function_subtype/nested_function_type_test.dart b/tests/language_2/function_subtype/nested_function_type_test.dart
deleted file mode 100644
index 79bc0aae677..00000000000
--- a/tests/language_2/function_subtype/nested_function_type_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Two function types that are identical except the argument type of the
-// nested function is a type variable from the outer function.
-typedef Fn = void Function<S>(S val) Function<T>(T val);
-typedef Gn = void Function<S>(T val) Function<T>(T val);
-
-void Function<S>(S) fn<T>(T val) => <R>(R val) {};
-void Function<S>(T) gn<T>(T val) => <R>(T val) {};
-
-// The same pattern here except with bounds on the type arguments.
-typedef Xn = void Function<S extends num>(S val) Function<T extends num>(T val);
-typedef Yn = void Function<S extends num>(T val) Function<T extends num>(T val);
-
-void Function<S extends num>(S) xn<T extends num>(T val) =>
-    <R extends num>(R val) {};
-void Function<S extends num>(T) yn<T extends num>(T val) =>
-    <R extends num>(T val) {};
-
-// The nested function here uses concrete type in the argument position so it
-// should satisfy either of the previous typedefs.
-void Function<S extends num>(num) zn<T extends num>(T val) =>
-    <R extends num>(num val) {};
-
-void main() {
-  Expect.isTrue(fn is Fn);
-  Expect.isFalse(fn is Gn);
-
-  Expect.isTrue(gn is Gn);
-  Expect.isFalse(gn is Fn);
-
-  Expect.isTrue(xn is Xn);
-  Expect.isFalse(xn is Yn);
-
-  Expect.isTrue(yn is Yn);
-  Expect.isFalse(yn is Xn);
-
-  Expect.isTrue(zn is Xn);
-  Expect.isTrue(zn is Yn);
-}
diff --git a/tests/language_2/function_subtype/not0_test.dart b/tests/language_2/function_subtype/not0_test.dart
deleted file mode 100644
index 8b06b8b5794..00000000000
--- a/tests/language_2/function_subtype/not0_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check negative function subtyping tests.
-
-import 'package:expect/expect.dart';
-
-typedef void Foo<T>(T t);
-typedef void Bar(int i);
-
-void bar(int i) {}
-
-void main() {
-  Expect.isTrue(bar is! Foo);
-  Expect.isTrue(bar is! Foo<bool>);
-  Expect.isFalse(bar is! Foo<int>);
-  Expect.isFalse(bar is! Bar);
-}
diff --git a/tests/language_2/function_subtype/not1_test.dart b/tests/language_2/function_subtype/not1_test.dart
deleted file mode 100644
index b4fbaace995..00000000000
--- a/tests/language_2/function_subtype/not1_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check negative function subtyping tests.
-
-import 'package:expect/expect.dart';
-
-typedef void Foo<T>(T t);
-typedef void Bar(int i);
-
-class Class<T> {
-  void bar(T i) {}
-}
-
-void main() {
-  Expect.isFalse(new Class().bar is! Foo);
-  Expect.isFalse(new Class().bar is! Foo<bool>);
-  Expect.isFalse(new Class().bar is! Foo<int>);
-  Expect.isFalse(new Class().bar is! Bar);
-
-  Expect.isFalse(new Class<int>().bar is! Foo);
-  Expect.isFalse(new Class<int>().bar is! Foo<bool>);
-  Expect.isFalse(new Class<int>().bar is! Foo<int>);
-  Expect.isFalse(new Class<int>().bar is! Bar);
-
-  Expect.isFalse(new Class<bool>().bar is! Foo);
-  Expect.isFalse(new Class<bool>().bar is! Foo<bool>);
-  Expect.isFalse(new Class<bool>().bar is! Foo<int>);
-  Expect.isFalse(new Class<bool>().bar is! Bar);
-}
diff --git a/tests/language_2/function_subtype/not2_test.dart b/tests/language_2/function_subtype/not2_test.dart
deleted file mode 100644
index cd1120e3cf8..00000000000
--- a/tests/language_2/function_subtype/not2_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check negative function subtyping tests.
-
-import 'package:expect/expect.dart';
-
-typedef void Foo<T>(T t);
-typedef void Bar(int i);
-
-class Class<T> {
-  test(bool expectedResult, var o, String typeName) {
-    Expect.equals(expectedResult, o is! Foo<T>, "bar is! Foo<$typeName>");
-    Expect.isFalse(o is! Bar, "bar is! Bar");
-  }
-}
-
-void bar(int i) {}
-
-void main() {
-  new Class<dynamic>().test(true, bar, "dynamic");
-  new Class<Object>().test(true, bar, "Object");
-  new Class<Null>().test(false, bar, "Null");
-  new Class<int>().test(false, bar, "int");
-  new Class<bool>().test(true, bar, "bool");
-}
diff --git a/tests/language_2/function_subtype/not3_test.dart b/tests/language_2/function_subtype/not3_test.dart
deleted file mode 100644
index dde3cd1fe76..00000000000
--- a/tests/language_2/function_subtype/not3_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check negative function subtyping tests.
-
-import 'package:expect/expect.dart';
-
-typedef void Foo<T>(T t);
-typedef void Bar(int i);
-
-class Class<T> {
-  test(bool expectedResult, var o, String typeName) {
-    void local() {
-      Expect.equals(expectedResult, o is! Foo<T>, "bar is! Foo<$typeName>");
-      Expect.isFalse(o is! Bar, "bar is! Bar");
-    }
-
-    local();
-  }
-}
-
-void bar(int i) {}
-
-void main() {
-  new Class<dynamic>().test(true, bar, "dynamic");
-  new Class<Object>().test(true, bar, "Object");
-  new Class<Null>().test(false, bar, "Null");
-  new Class<int>().test(false, bar, "int");
-  new Class<bool>().test(true, bar, "bool");
-}
diff --git a/tests/language_2/function_subtype/null_test.dart b/tests/language_2/function_subtype/null_test.dart
deleted file mode 100644
index a11cde30626..00000000000
--- a/tests/language_2/function_subtype/null_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping for null.
-
-import 'package:expect/expect.dart';
-
-typedef int Foo(bool a, [String b]);
-typedef int Bar<T>(T a, [String b]);
-
-main() {
-  Expect.isFalse(null is Foo, 'null is Foo');
-  Expect.isFalse(null is Bar<bool>, 'null is Bar<bool>');
-  Expect.isFalse(null is Bar, 'null is Bar');
-}
diff --git a/tests/language_2/function_subtype/optional1_test.dart b/tests/language_2/function_subtype/optional1_test.dart
deleted file mode 100644
index 8ba13ec4cf9..00000000000
--- a/tests/language_2/function_subtype/optional1_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping.
-
-import 'package:expect/expect.dart';
-
-void void_() {}
-void void__int(int i) {}
-void void___int([int i]) {}
-void void___int2([int i]) {}
-void void___Object([Object o]) {}
-void void__int__int(int i1, [int i2]) {}
-void void__int__int2(int i1, [int i2]) {}
-void void__int__int_int(int i1, [int i2, int i3]) {}
-void void___double(double d) {}
-void void___int_int([int i1, int i2]) {}
-void void___int_int_int([int i1, int i2, int i3]) {}
-void void___Object_int([Object o, int i]) {}
-
-typedef void t_void_();
-typedef void t_void__int(int i);
-typedef void t_void___int([int i]);
-typedef void t_void___int2([int i]);
-typedef void t_void___Object([Object o]);
-typedef void t_void__int__int(int i1, [int i2]);
-typedef void t_void__int__int2(int i1, [int i2]);
-typedef void t_void__int__int_int(int i1, [int i2, int i3]);
-typedef void t_void___double(double d);
-typedef void t_void___int_int([int i1, int i2]);
-typedef void t_void___int_int_int([int i1, int i2, int i3]);
-typedef void t_void___Object_int([Object o, int i]);
-
-main() {
-  // Test ([int])->void <: ()->void.
-  Expect.isTrue(void___int is t_void_);
-  // Test ([int])->void <: (int)->void.
-  Expect.isTrue(void___int is t_void__int);
-  // Test (int)->void <: ([int])->void.
-  Expect.isFalse(void__int is t_void___int);
-  // Test ([int])->void <: ([int])->void.
-  Expect.isTrue(void___int is t_void___int2);
-  // Test ([Object])->void <: ([int])->void.
-  Expect.isTrue(void___Object is t_void___int);
-  // Test ([int])->void <: ([Object])->void.
-  Expect.isFalse(void___int is t_void___Object);
-  // Test (int,[int])->void <: (int)->void.
-  Expect.isTrue(void__int__int is t_void__int);
-  // Test (int,[int])->void <: (int,[int])->void.
-  Expect.isTrue(void__int__int is t_void__int__int2);
-  // Test (int)->void <: ([int])->void.
-  Expect.isFalse(void__int is t_void___int);
-  // Test ([int,int])->void <: (int)->void.
-  Expect.isTrue(void___int_int is t_void__int);
-  // Test ([int,int])->void <: (int,[int])->void.
-  Expect.isTrue(void___int_int is t_void__int__int);
-  // Test ([int,int])->void <: (int,[int,int])->void.
-  Expect.isFalse(void___int_int is t_void__int__int_int);
-  // Test ([int,int,int])->void <: (int,[int,int])->void.
-  Expect.isTrue(void___int_int_int is t_void__int__int_int);
-  // Test ([int])->void <: ([double])->void.
-  Expect.isFalse(void___int is t_void___double);
-  // Test ([int])->void <: ([int,int])->void.
-  Expect.isFalse(void___int is t_void___int_int);
-  // Test ([int,int])->void <: ([int])->void.
-  Expect.isTrue(void___int_int is t_void___int);
-  // Test ([Object,int])->void <: ([int])->void.
-  Expect.isTrue(void___Object_int is t_void___int);
-}
diff --git a/tests/language_2/function_subtype/optional2_test.dart b/tests/language_2/function_subtype/optional2_test.dart
deleted file mode 100644
index b2101f631bf..00000000000
--- a/tests/language_2/function_subtype/optional2_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping.
-
-import 'package:expect/expect.dart';
-
-class C<T> {}
-
-typedef void void_();
-typedef void void__int(int i);
-typedef void void___int([int i]);
-typedef void void___int2([int i]);
-typedef void void___Object([Object o]);
-typedef void void__int__int(int i1, [int i2]);
-typedef void void__int__int2(int i1, [int i2]);
-typedef void void__int__int_int(int i1, [int i2, int i3]);
-typedef void void___double(double d);
-typedef void void___int_int([int i1, int i2]);
-typedef void void___int_int_int([int i1, int i2, int i3]);
-typedef void void___Object_int([Object o, int i]);
-
-main() {
-  // Test ([int])->void <: ()->void.
-  Expect.isTrue(new C<void___int>() is C<void_>);
-  // Test ([int])->void <: (int)->void.
-  Expect.isTrue(new C<void___int>() is C<void__int>);
-  // Test (int)->void <: ([int])->void.
-  Expect.isFalse(new C<void__int>() is C<void___int>);
-  // Test ([int])->void <: ([int])->void.
-  Expect.isTrue(new C<void___int>() is C<void___int2>);
-  // Test ([Object])->void <: ([int])->void.
-  Expect.isTrue(new C<void___Object>() is C<void___int>);
-  // Test ([int])->void <: ([Object])->void.
-  Expect.isFalse(new C<void___int>() is C<void___Object>);
-  // Test (int,[int])->void <: (int)->void.
-  Expect.isTrue(new C<void__int__int>() is C<void__int>);
-  // Test (int,[int])->void <: (int,[int])->void.
-  Expect.isTrue(new C<void__int__int>() is C<void__int__int2>);
-  // Test (int)->void <: ([int])->void.
-  Expect.isFalse(new C<void__int>() is C<void___int>);
-  // Test ([int,int])->void <: (int)->void.
-  Expect.isTrue(new C<void___int_int>() is C<void__int>);
-  // Test ([int,int])->void <: (int,[int])->void.
-  Expect.isTrue(new C<void___int_int>() is C<void__int__int>);
-  // Test ([int,int])->void <: (int,[int,int])->void.
-  Expect.isFalse(new C<void___int_int>() is C<void__int__int_int>);
-  // Test ([int,int,int])->void <: (int,[int,int])->void.
-  Expect.isTrue(new C<void___int_int_int>() is C<void__int__int_int>);
-  // Test ([int])->void <: ([double])->void.
-  Expect.isFalse(new C<void___int>() is C<void___double>);
-  // Test ([int])->void <: ([int,int])->void.
-  Expect.isFalse(new C<void___int>() is C<void___int_int>);
-  // Test ([int,int])->void <: ([int])->void.
-  Expect.isTrue(new C<void___int_int>() is C<void___int>);
-  // Test ([Object,int])->void <: ([int])->void.
-  Expect.isTrue(new C<void___Object_int>() is C<void___int>);
-}
diff --git a/tests/language_2/function_subtype/regress41680_test.dart b/tests/language_2/function_subtype/regress41680_test.dart
deleted file mode 100644
index f37f5730e95..00000000000
--- a/tests/language_2/function_subtype/regress41680_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// [NNBD non-migrated]: This test is migrated to regress41680_strong_test.dart
-// and regress41680_weak_test.dart.
-import "package:expect/expect.dart";
-
-typedef dynamicToDynamic = dynamic Function(dynamic);
-
-typedef voidToT = T Function<T>();
-
-dynamic dynamicNull = null;
-
-dynamic cast<T>(dynamic value) => value as T;
-
-bool allowsArgument(T Function<T>() fn) => true;
-
-main() {
-  // In legacy Dart 2 Null should be allowed as a subtype of function types.
-  Expect.equals(null, dynamicNull as Function);
-  Expect.equals(null, dynamicNull as dynamicToDynamic);
-  Expect.equals(null, cast<dynamic Function(dynamic)>(dynamicNull));
-  Expect.equals(null, dynamicNull as voidToT);
-  Expect.equals(true, allowsArgument(dynamicNull));
-}
diff --git a/tests/language_2/function_subtype/regression_ddc_588_test.dart b/tests/language_2/function_subtype/regression_ddc_588_test.dart
deleted file mode 100644
index 6ac60ac5088..00000000000
--- a/tests/language_2/function_subtype/regression_ddc_588_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-
-// @dart = 2.9
-import "package:expect/expect.dart";
-
-// regression test for ddc #588
-
-typedef int Int2Int(int x);
-
-void foo(List<Int2Int> list) {
-  list.forEach((f) => print(f(42)));
-}
-
-void main() {
-  var l = <Function>[];
-  Expect.throwsTypeError(() => foo(l));
-}
diff --git a/tests/language_2/function_subtype/setter0_test.dart b/tests/language_2/function_subtype/setter0_test.dart
deleted file mode 100644
index d052b62b284..00000000000
--- a/tests/language_2/function_subtype/setter0_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping for implicit setters.
-
-import 'package:expect/expect.dart';
-
-typedef void Foo();
-
-class A<T> {}
-
-class C {
-  Foo foo;
-  A<int> bar;
-}
-
-class D {
-  Foo foo;
-  A<int> bar;
-}
-
-test(c) {
-  Expect.throwsTypeError(() => c.foo = 1);
-}
-
-void main() {
-  test(new C());
-  test(new D());
-}
diff --git a/tests/language_2/function_subtype/simple0_test.dart b/tests/language_2/function_subtype/simple0_test.dart
deleted file mode 100644
index a8671c7b7ce..00000000000
--- a/tests/language_2/function_subtype/simple0_test.dart
+++ /dev/null
@@ -1,318 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping of simple function types.
-
-import 'package:expect/expect.dart';
-
-typedef Args0();
-typedef Args1(a);
-typedef Args2(a, b);
-typedef Args3(a, b, c);
-typedef Args4(a, b, c, d);
-typedef Args5(a, b, c, d, e);
-typedef Args6(a, b, c, d, e, f);
-typedef Args7(a, b, c, d, e, f, g);
-typedef Args8(a, b, c, d, e, f, g, h);
-typedef Args9(a, b, c, d, e, f, g, h, i);
-typedef Args10(a, b, c, d, e, f, g, h, i, j);
-typedef Args11(a, b, c, d, e, f, g, h, i, j, k);
-typedef Args12(a, b, c, d, e, f, g, h, i, j, k, l);
-typedef Args13(a, b, c, d, e, f, g, h, i, j, k, l, m);
-typedef Args14(a, b, c, d, e, f, g, h, i, j, k, l, m, n);
-typedef Args15(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o);
-
-args0() {}
-args1(a) {}
-args2(a, b) {}
-args3(a, b, c) {}
-args4(a, b, c, d) {}
-args5(a, b, c, d, e) {}
-args6(a, b, c, d, e, f) {}
-args7(a, b, c, d, e, f, g) {}
-args8(a, b, c, d, e, f, g, h) {}
-args9(a, b, c, d, e, f, g, h, i) {}
-args10(a, b, c, d, e, f, g, h, i, j) {}
-args11(a, b, c, d, e, f, g, h, i, j, k) {}
-args12(a, b, c, d, e, f, g, h, i, j, k, l) {}
-args13(a, b, c, d, e, f, g, h, i, j, k, l, m) {}
-args14(a, b, c, d, e, f, g, h, i, j, k, l, m, n) {}
-args15(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) {}
-
-main() {
-  Expect.isTrue(args0 is Args0);
-  Expect.isFalse(args0 is Args1);
-  Expect.isFalse(args0 is Args2);
-  Expect.isFalse(args0 is Args3);
-  Expect.isFalse(args0 is Args4);
-  Expect.isFalse(args0 is Args5);
-  Expect.isFalse(args0 is Args6);
-  Expect.isFalse(args0 is Args7);
-  Expect.isFalse(args0 is Args8);
-  Expect.isFalse(args0 is Args9);
-  Expect.isFalse(args0 is Args10);
-  Expect.isFalse(args0 is Args11);
-  Expect.isFalse(args0 is Args12);
-  Expect.isFalse(args0 is Args13);
-  Expect.isFalse(args0 is Args14);
-  Expect.isFalse(args0 is Args15);
-
-  Expect.isFalse(args1 is Args0);
-  Expect.isTrue(args1 is Args1);
-  Expect.isFalse(args1 is Args2);
-  Expect.isFalse(args1 is Args3);
-  Expect.isFalse(args1 is Args4);
-  Expect.isFalse(args1 is Args5);
-  Expect.isFalse(args1 is Args6);
-  Expect.isFalse(args1 is Args7);
-  Expect.isFalse(args1 is Args8);
-  Expect.isFalse(args1 is Args9);
-  Expect.isFalse(args1 is Args10);
-  Expect.isFalse(args1 is Args11);
-  Expect.isFalse(args1 is Args12);
-  Expect.isFalse(args1 is Args13);
-  Expect.isFalse(args1 is Args14);
-  Expect.isFalse(args1 is Args15);
-
-  Expect.isFalse(args2 is Args0);
-  Expect.isFalse(args2 is Args1);
-  Expect.isTrue(args2 is Args2);
-  Expect.isFalse(args2 is Args3);
-  Expect.isFalse(args2 is Args4);
-  Expect.isFalse(args2 is Args5);
-  Expect.isFalse(args2 is Args6);
-  Expect.isFalse(args2 is Args7);
-  Expect.isFalse(args2 is Args8);
-  Expect.isFalse(args2 is Args9);
-  Expect.isFalse(args2 is Args10);
-  Expect.isFalse(args2 is Args11);
-  Expect.isFalse(args2 is Args12);
-  Expect.isFalse(args2 is Args13);
-  Expect.isFalse(args2 is Args14);
-  Expect.isFalse(args2 is Args15);
-
-  Expect.isFalse(args3 is Args0);
-  Expect.isFalse(args3 is Args1);
-  Expect.isFalse(args3 is Args2);
-  Expect.isTrue(args3 is Args3);
-  Expect.isFalse(args3 is Args4);
-  Expect.isFalse(args3 is Args5);
-  Expect.isFalse(args3 is Args6);
-  Expect.isFalse(args3 is Args7);
-  Expect.isFalse(args3 is Args8);
-  Expect.isFalse(args3 is Args9);
-  Expect.isFalse(args3 is Args10);
-  Expect.isFalse(args3 is Args11);
-  Expect.isFalse(args3 is Args12);
-  Expect.isFalse(args3 is Args13);
-  Expect.isFalse(args3 is Args14);
-  Expect.isFalse(args3 is Args15);
-
-  Expect.isFalse(args4 is Args0);
-  Expect.isFalse(args4 is Args1);
-  Expect.isFalse(args4 is Args2);
-  Expect.isFalse(args4 is Args3);
-  Expect.isTrue(args4 is Args4);
-  Expect.isFalse(args4 is Args5);
-  Expect.isFalse(args4 is Args6);
-  Expect.isFalse(args4 is Args7);
-  Expect.isFalse(args4 is Args8);
-  Expect.isFalse(args4 is Args9);
-  Expect.isFalse(args4 is Args10);
-  Expect.isFalse(args4 is Args11);
-  Expect.isFalse(args4 is Args12);
-  Expect.isFalse(args4 is Args13);
-  Expect.isFalse(args4 is Args14);
-  Expect.isFalse(args4 is Args15);
-
-  Expect.isFalse(args5 is Args0);
-  Expect.isFalse(args5 is Args1);
-  Expect.isFalse(args5 is Args2);
-  Expect.isFalse(args5 is Args3);
-  Expect.isFalse(args5 is Args4);
-  Expect.isTrue(args5 is Args5);
-  Expect.isFalse(args5 is Args6);
-  Expect.isFalse(args5 is Args7);
-  Expect.isFalse(args5 is Args8);
-  Expect.isFalse(args5 is Args9);
-  Expect.isFalse(args5 is Args10);
-  Expect.isFalse(args5 is Args11);
-  Expect.isFalse(args5 is Args12);
-  Expect.isFalse(args5 is Args13);
-  Expect.isFalse(args5 is Args14);
-  Expect.isFalse(args5 is Args15);
-
-  Expect.isFalse(args6 is Args0);
-  Expect.isFalse(args6 is Args1);
-  Expect.isFalse(args6 is Args2);
-  Expect.isFalse(args6 is Args3);
-  Expect.isFalse(args6 is Args4);
-  Expect.isFalse(args6 is Args5);
-  Expect.isTrue(args6 is Args6);
-  Expect.isFalse(args6 is Args7);
-  Expect.isFalse(args6 is Args8);
-  Expect.isFalse(args6 is Args9);
-  Expect.isFalse(args6 is Args10);
-  Expect.isFalse(args6 is Args11);
-  Expect.isFalse(args6 is Args12);
-  Expect.isFalse(args6 is Args13);
-  Expect.isFalse(args6 is Args14);
-  Expect.isFalse(args6 is Args15);
-
-  Expect.isFalse(args7 is Args0);
-  Expect.isFalse(args7 is Args1);
-  Expect.isFalse(args7 is Args2);
-  Expect.isFalse(args7 is Args3);
-  Expect.isFalse(args7 is Args4);
-  Expect.isFalse(args7 is Args5);
-  Expect.isFalse(args7 is Args6);
-  Expect.isTrue(args7 is Args7);
-  Expect.isFalse(args7 is Args8);
-  Expect.isFalse(args7 is Args9);
-  Expect.isFalse(args7 is Args10);
-  Expect.isFalse(args7 is Args11);
-  Expect.isFalse(args7 is Args12);
-  Expect.isFalse(args7 is Args13);
-  Expect.isFalse(args7 is Args14);
-  Expect.isFalse(args7 is Args15);
-
-  Expect.isFalse(args8 is Args0);
-  Expect.isFalse(args8 is Args1);
-  Expect.isFalse(args8 is Args2);
-  Expect.isFalse(args8 is Args3);
-  Expect.isFalse(args8 is Args4);
-  Expect.isFalse(args8 is Args5);
-  Expect.isFalse(args8 is Args6);
-  Expect.isFalse(args8 is Args7);
-  Expect.isTrue(args8 is Args8);
-  Expect.isFalse(args8 is Args9);
-  Expect.isFalse(args8 is Args10);
-  Expect.isFalse(args8 is Args11);
-  Expect.isFalse(args8 is Args12);
-  Expect.isFalse(args8 is Args13);
-  Expect.isFalse(args8 is Args14);
-  Expect.isFalse(args8 is Args15);
-
-  Expect.isFalse(args9 is Args0);
-  Expect.isFalse(args9 is Args1);
-  Expect.isFalse(args9 is Args2);
-  Expect.isFalse(args9 is Args3);
-  Expect.isFalse(args9 is Args4);
-  Expect.isFalse(args9 is Args5);
-  Expect.isFalse(args9 is Args6);
-  Expect.isFalse(args9 is Args7);
-  Expect.isFalse(args9 is Args8);
-  Expect.isTrue(args9 is Args9);
-  Expect.isFalse(args9 is Args10);
-  Expect.isFalse(args9 is Args11);
-  Expect.isFalse(args9 is Args12);
-  Expect.isFalse(args9 is Args13);
-  Expect.isFalse(args9 is Args14);
-  Expect.isFalse(args9 is Args15);
-
-  Expect.isFalse(args10 is Args0);
-  Expect.isFalse(args10 is Args1);
-  Expect.isFalse(args10 is Args2);
-  Expect.isFalse(args10 is Args3);
-  Expect.isFalse(args10 is Args4);
-  Expect.isFalse(args10 is Args5);
-  Expect.isFalse(args10 is Args6);
-  Expect.isFalse(args10 is Args7);
-  Expect.isFalse(args10 is Args8);
-  Expect.isFalse(args10 is Args9);
-  Expect.isTrue(args10 is Args10);
-  Expect.isFalse(args10 is Args11);
-  Expect.isFalse(args10 is Args12);
-  Expect.isFalse(args10 is Args13);
-  Expect.isFalse(args10 is Args14);
-  Expect.isFalse(args10 is Args15);
-
-  Expect.isFalse(args11 is Args0);
-  Expect.isFalse(args11 is Args1);
-  Expect.isFalse(args11 is Args2);
-  Expect.isFalse(args11 is Args3);
-  Expect.isFalse(args11 is Args4);
-  Expect.isFalse(args11 is Args5);
-  Expect.isFalse(args11 is Args6);
-  Expect.isFalse(args11 is Args7);
-  Expect.isFalse(args11 is Args8);
-  Expect.isFalse(args11 is Args9);
-  Expect.isFalse(args11 is Args10);
-  Expect.isTrue(args11 is Args11);
-  Expect.isFalse(args11 is Args12);
-  Expect.isFalse(args11 is Args13);
-  Expect.isFalse(args11 is Args14);
-  Expect.isFalse(args11 is Args15);
-
-  Expect.isFalse(args12 is Args0);
-  Expect.isFalse(args12 is Args1);
-  Expect.isFalse(args12 is Args2);
-  Expect.isFalse(args12 is Args3);
-  Expect.isFalse(args12 is Args4);
-  Expect.isFalse(args12 is Args5);
-  Expect.isFalse(args12 is Args6);
-  Expect.isFalse(args12 is Args7);
-  Expect.isFalse(args12 is Args8);
-  Expect.isFalse(args12 is Args9);
-  Expect.isFalse(args12 is Args10);
-  Expect.isFalse(args12 is Args11);
-  Expect.isTrue(args12 is Args12);
-  Expect.isFalse(args12 is Args13);
-  Expect.isFalse(args12 is Args14);
-  Expect.isFalse(args12 is Args15);
-
-  Expect.isFalse(args13 is Args0);
-  Expect.isFalse(args13 is Args1);
-  Expect.isFalse(args13 is Args2);
-  Expect.isFalse(args13 is Args3);
-  Expect.isFalse(args13 is Args4);
-  Expect.isFalse(args13 is Args5);
-  Expect.isFalse(args13 is Args6);
-  Expect.isFalse(args13 is Args7);
-  Expect.isFalse(args13 is Args8);
-  Expect.isFalse(args13 is Args9);
-  Expect.isFalse(args13 is Args10);
-  Expect.isFalse(args13 is Args11);
-  Expect.isFalse(args13 is Args12);
-  Expect.isTrue(args13 is Args13);
-  Expect.isFalse(args13 is Args14);
-  Expect.isFalse(args13 is Args15);
-
-  Expect.isFalse(args14 is Args0);
-  Expect.isFalse(args14 is Args1);
-  Expect.isFalse(args14 is Args2);
-  Expect.isFalse(args14 is Args3);
-  Expect.isFalse(args14 is Args4);
-  Expect.isFalse(args14 is Args5);
-  Expect.isFalse(args14 is Args6);
-  Expect.isFalse(args14 is Args7);
-  Expect.isFalse(args14 is Args8);
-  Expect.isFalse(args14 is Args9);
-  Expect.isFalse(args14 is Args10);
-  Expect.isFalse(args14 is Args11);
-  Expect.isFalse(args14 is Args12);
-  Expect.isFalse(args14 is Args13);
-  Expect.isTrue(args14 is Args14);
-  Expect.isFalse(args14 is Args15);
-
-  Expect.isFalse(args15 is Args0);
-  Expect.isFalse(args15 is Args1);
-  Expect.isFalse(args15 is Args2);
-  Expect.isFalse(args15 is Args3);
-  Expect.isFalse(args15 is Args4);
-  Expect.isFalse(args15 is Args5);
-  Expect.isFalse(args15 is Args6);
-  Expect.isFalse(args15 is Args7);
-  Expect.isFalse(args15 is Args8);
-  Expect.isFalse(args15 is Args9);
-  Expect.isFalse(args15 is Args10);
-  Expect.isFalse(args15 is Args11);
-  Expect.isFalse(args15 is Args12);
-  Expect.isFalse(args15 is Args13);
-  Expect.isFalse(args15 is Args14);
-  Expect.isTrue(args15 is Args15);
-}
diff --git a/tests/language_2/function_subtype/simple1_test.dart b/tests/language_2/function_subtype/simple1_test.dart
deleted file mode 100644
index a35751a5ebb..00000000000
--- a/tests/language_2/function_subtype/simple1_test.dart
+++ /dev/null
@@ -1,331 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping of simple function types.
-
-import 'package:expect/expect.dart';
-
-typedef Args0();
-typedef Args1(Null a);
-typedef Args2(Null a, Null b);
-typedef Args3(Null a, Null b, Null c);
-typedef Args4(Null a, Null b, Null c, Null d);
-typedef Args5(Null a, Null b, Null c, Null d, Null e);
-typedef Args6(Null a, Null b, Null c, Null d, Null e, Null f);
-typedef Args7(Null a, Null b, Null c, Null d, Null e, Null f, Null g);
-typedef Args8(Null a, Null b, Null c, Null d, Null e, Null f, Null g, Null h);
-typedef Args9(
-    Null a, Null b, Null c, Null d, Null e, Null f, Null g, Null h, Null i);
-typedef Args10(Null a, Null b, Null c, Null d, Null e, Null f, Null g, Null h,
-    Null i, Null j);
-typedef Args11(Null a, Null b, Null c, Null d, Null e, Null f, Null g, Null h,
-    Null i, Null j, Null k);
-typedef Args12(Null a, Null b, Null c, Null d, Null e, Null f, Null g, Null h,
-    Null i, Null j, Null k, Null l);
-typedef Args13(Null a, Null b, Null c, Null d, Null e, Null f, Null g, Null h,
-    Null i, Null j, Null k, Null l, Null m);
-typedef Args14(Null a, Null b, Null c, Null d, Null e, Null f, Null g, Null h,
-    Null i, Null j, Null k, Null l, Null m, Null n);
-typedef Args15(Null a, Null b, Null c, Null d, Null e, Null f, Null g, Null h,
-    Null i, Null j, Null k, Null l, Null m, Null n, Null o);
-
-void args0() {}
-void args1(int a) {}
-void args2(int a, int b) {}
-void args3(int a, int b, int c) {}
-void args4(int a, int b, int c, int d) {}
-void args5(int a, int b, int c, int d, int e) {}
-void args6(int a, int b, int c, int d, int e, int f) {}
-void args7(int a, int b, int c, int d, int e, int f, int g) {}
-void args8(int a, int b, int c, int d, int e, int f, int g, int h) {}
-void args9(int a, int b, int c, int d, int e, int f, int g, int h, int i) {}
-void args10(
-    int a, int b, int c, int d, int e, int f, int g, int h, int i, int j) {}
-void args11(int a, int b, int c, int d, int e, int f, int g, int h, int i,
-    int j, int k) {}
-void args12(int a, int b, int c, int d, int e, int f, int g, int h, int i,
-    int j, int k, int l) {}
-void args13(int a, int b, int c, int d, int e, int f, int g, int h, int i,
-    int j, int k, int l, int m) {}
-void args14(int a, int b, int c, int d, int e, int f, int g, int h, int i,
-    int j, int k, int l, int m, int n) {}
-void args15(int a, int b, int c, int d, int e, int f, int g, int h, int i,
-    int j, int k, int l, int m, int n, int o) {}
-
-main() {
-  Expect.isTrue(args0 is Args0);
-  Expect.isFalse(args0 is Args1);
-  Expect.isFalse(args0 is Args2);
-  Expect.isFalse(args0 is Args3);
-  Expect.isFalse(args0 is Args4);
-  Expect.isFalse(args0 is Args5);
-  Expect.isFalse(args0 is Args6);
-  Expect.isFalse(args0 is Args7);
-  Expect.isFalse(args0 is Args8);
-  Expect.isFalse(args0 is Args9);
-  Expect.isFalse(args0 is Args10);
-  Expect.isFalse(args0 is Args11);
-  Expect.isFalse(args0 is Args12);
-  Expect.isFalse(args0 is Args13);
-  Expect.isFalse(args0 is Args14);
-  Expect.isFalse(args0 is Args15);
-
-  Expect.isFalse(args1 is Args0);
-  Expect.isTrue(args1 is Args1);
-  Expect.isFalse(args1 is Args2);
-  Expect.isFalse(args1 is Args3);
-  Expect.isFalse(args1 is Args4);
-  Expect.isFalse(args1 is Args5);
-  Expect.isFalse(args1 is Args6);
-  Expect.isFalse(args1 is Args7);
-  Expect.isFalse(args1 is Args8);
-  Expect.isFalse(args1 is Args9);
-  Expect.isFalse(args1 is Args10);
-  Expect.isFalse(args1 is Args11);
-  Expect.isFalse(args1 is Args12);
-  Expect.isFalse(args1 is Args13);
-  Expect.isFalse(args1 is Args14);
-  Expect.isFalse(args1 is Args15);
-
-  Expect.isFalse(args2 is Args0);
-  Expect.isFalse(args2 is Args1);
-  Expect.isTrue(args2 is Args2);
-  Expect.isFalse(args2 is Args3);
-  Expect.isFalse(args2 is Args4);
-  Expect.isFalse(args2 is Args5);
-  Expect.isFalse(args2 is Args6);
-  Expect.isFalse(args2 is Args7);
-  Expect.isFalse(args2 is Args8);
-  Expect.isFalse(args2 is Args9);
-  Expect.isFalse(args2 is Args10);
-  Expect.isFalse(args2 is Args11);
-  Expect.isFalse(args2 is Args12);
-  Expect.isFalse(args2 is Args13);
-  Expect.isFalse(args2 is Args14);
-  Expect.isFalse(args2 is Args15);
-
-  Expect.isFalse(args3 is Args0);
-  Expect.isFalse(args3 is Args1);
-  Expect.isFalse(args3 is Args2);
-  Expect.isTrue(args3 is Args3);
-  Expect.isFalse(args3 is Args4);
-  Expect.isFalse(args3 is Args5);
-  Expect.isFalse(args3 is Args6);
-  Expect.isFalse(args3 is Args7);
-  Expect.isFalse(args3 is Args8);
-  Expect.isFalse(args3 is Args9);
-  Expect.isFalse(args3 is Args10);
-  Expect.isFalse(args3 is Args11);
-  Expect.isFalse(args3 is Args12);
-  Expect.isFalse(args3 is Args13);
-  Expect.isFalse(args3 is Args14);
-  Expect.isFalse(args3 is Args15);
-
-  Expect.isFalse(args4 is Args0);
-  Expect.isFalse(args4 is Args1);
-  Expect.isFalse(args4 is Args2);
-  Expect.isFalse(args4 is Args3);
-  Expect.isTrue(args4 is Args4);
-  Expect.isFalse(args4 is Args5);
-  Expect.isFalse(args4 is Args6);
-  Expect.isFalse(args4 is Args7);
-  Expect.isFalse(args4 is Args8);
-  Expect.isFalse(args4 is Args9);
-  Expect.isFalse(args4 is Args10);
-  Expect.isFalse(args4 is Args11);
-  Expect.isFalse(args4 is Args12);
-  Expect.isFalse(args4 is Args13);
-  Expect.isFalse(args4 is Args14);
-  Expect.isFalse(args4 is Args15);
-
-  Expect.isFalse(args5 is Args0);
-  Expect.isFalse(args5 is Args1);
-  Expect.isFalse(args5 is Args2);
-  Expect.isFalse(args5 is Args3);
-  Expect.isFalse(args5 is Args4);
-  Expect.isTrue(args5 is Args5);
-  Expect.isFalse(args5 is Args6);
-  Expect.isFalse(args5 is Args7);
-  Expect.isFalse(args5 is Args8);
-  Expect.isFalse(args5 is Args9);
-  Expect.isFalse(args5 is Args10);
-  Expect.isFalse(args5 is Args11);
-  Expect.isFalse(args5 is Args12);
-  Expect.isFalse(args5 is Args13);
-  Expect.isFalse(args5 is Args14);
-  Expect.isFalse(args5 is Args15);
-
-  Expect.isFalse(args6 is Args0);
-  Expect.isFalse(args6 is Args1);
-  Expect.isFalse(args6 is Args2);
-  Expect.isFalse(args6 is Args3);
-  Expect.isFalse(args6 is Args4);
-  Expect.isFalse(args6 is Args5);
-  Expect.isTrue(args6 is Args6);
-  Expect.isFalse(args6 is Args7);
-  Expect.isFalse(args6 is Args8);
-  Expect.isFalse(args6 is Args9);
-  Expect.isFalse(args6 is Args10);
-  Expect.isFalse(args6 is Args11);
-  Expect.isFalse(args6 is Args12);
-  Expect.isFalse(args6 is Args13);
-  Expect.isFalse(args6 is Args14);
-  Expect.isFalse(args6 is Args15);
-
-  Expect.isFalse(args7 is Args0);
-  Expect.isFalse(args7 is Args1);
-  Expect.isFalse(args7 is Args2);
-  Expect.isFalse(args7 is Args3);
-  Expect.isFalse(args7 is Args4);
-  Expect.isFalse(args7 is Args5);
-  Expect.isFalse(args7 is Args6);
-  Expect.isTrue(args7 is Args7);
-  Expect.isFalse(args7 is Args8);
-  Expect.isFalse(args7 is Args9);
-  Expect.isFalse(args7 is Args10);
-  Expect.isFalse(args7 is Args11);
-  Expect.isFalse(args7 is Args12);
-  Expect.isFalse(args7 is Args13);
-  Expect.isFalse(args7 is Args14);
-  Expect.isFalse(args7 is Args15);
-
-  Expect.isFalse(args8 is Args0);
-  Expect.isFalse(args8 is Args1);
-  Expect.isFalse(args8 is Args2);
-  Expect.isFalse(args8 is Args3);
-  Expect.isFalse(args8 is Args4);
-  Expect.isFalse(args8 is Args5);
-  Expect.isFalse(args8 is Args6);
-  Expect.isFalse(args8 is Args7);
-  Expect.isTrue(args8 is Args8);
-  Expect.isFalse(args8 is Args9);
-  Expect.isFalse(args8 is Args10);
-  Expect.isFalse(args8 is Args11);
-  Expect.isFalse(args8 is Args12);
-  Expect.isFalse(args8 is Args13);
-  Expect.isFalse(args8 is Args14);
-  Expect.isFalse(args8 is Args15);
-
-  Expect.isFalse(args9 is Args0);
-  Expect.isFalse(args9 is Args1);
-  Expect.isFalse(args9 is Args2);
-  Expect.isFalse(args9 is Args3);
-  Expect.isFalse(args9 is Args4);
-  Expect.isFalse(args9 is Args5);
-  Expect.isFalse(args9 is Args6);
-  Expect.isFalse(args9 is Args7);
-  Expect.isFalse(args9 is Args8);
-  Expect.isTrue(args9 is Args9);
-  Expect.isFalse(args9 is Args10);
-  Expect.isFalse(args9 is Args11);
-  Expect.isFalse(args9 is Args12);
-  Expect.isFalse(args9 is Args13);
-  Expect.isFalse(args9 is Args14);
-  Expect.isFalse(args9 is Args15);
-
-  Expect.isFalse(args10 is Args0);
-  Expect.isFalse(args10 is Args1);
-  Expect.isFalse(args10 is Args2);
-  Expect.isFalse(args10 is Args3);
-  Expect.isFalse(args10 is Args4);
-  Expect.isFalse(args10 is Args5);
-  Expect.isFalse(args10 is Args6);
-  Expect.isFalse(args10 is Args7);
-  Expect.isFalse(args10 is Args8);
-  Expect.isFalse(args10 is Args9);
-  Expect.isTrue(args10 is Args10);
-  Expect.isFalse(args10 is Args11);
-  Expect.isFalse(args10 is Args12);
-  Expect.isFalse(args10 is Args13);
-  Expect.isFalse(args10 is Args14);
-  Expect.isFalse(args10 is Args15);
-
-  Expect.isFalse(args11 is Args0);
-  Expect.isFalse(args11 is Args1);
-  Expect.isFalse(args11 is Args2);
-  Expect.isFalse(args11 is Args3);
-  Expect.isFalse(args11 is Args4);
-  Expect.isFalse(args11 is Args5);
-  Expect.isFalse(args11 is Args6);
-  Expect.isFalse(args11 is Args7);
-  Expect.isFalse(args11 is Args8);
-  Expect.isFalse(args11 is Args9);
-  Expect.isFalse(args11 is Args10);
-  Expect.isTrue(args11 is Args11);
-  Expect.isFalse(args11 is Args12);
-  Expect.isFalse(args11 is Args13);
-  Expect.isFalse(args11 is Args14);
-  Expect.isFalse(args11 is Args15);
-
-  Expect.isFalse(args12 is Args0);
-  Expect.isFalse(args12 is Args1);
-  Expect.isFalse(args12 is Args2);
-  Expect.isFalse(args12 is Args3);
-  Expect.isFalse(args12 is Args4);
-  Expect.isFalse(args12 is Args5);
-  Expect.isFalse(args12 is Args6);
-  Expect.isFalse(args12 is Args7);
-  Expect.isFalse(args12 is Args8);
-  Expect.isFalse(args12 is Args9);
-  Expect.isFalse(args12 is Args10);
-  Expect.isFalse(args12 is Args11);
-  Expect.isTrue(args12 is Args12);
-  Expect.isFalse(args12 is Args13);
-  Expect.isFalse(args12 is Args14);
-  Expect.isFalse(args12 is Args15);
-
-  Expect.isFalse(args13 is Args0);
-  Expect.isFalse(args13 is Args1);
-  Expect.isFalse(args13 is Args2);
-  Expect.isFalse(args13 is Args3);
-  Expect.isFalse(args13 is Args4);
-  Expect.isFalse(args13 is Args5);
-  Expect.isFalse(args13 is Args6);
-  Expect.isFalse(args13 is Args7);
-  Expect.isFalse(args13 is Args8);
-  Expect.isFalse(args13 is Args9);
-  Expect.isFalse(args13 is Args10);
-  Expect.isFalse(args13 is Args11);
-  Expect.isFalse(args13 is Args12);
-  Expect.isTrue(args13 is Args13);
-  Expect.isFalse(args13 is Args14);
-  Expect.isFalse(args13 is Args15);
-
-  Expect.isFalse(args14 is Args0);
-  Expect.isFalse(args14 is Args1);
-  Expect.isFalse(args14 is Args2);
-  Expect.isFalse(args14 is Args3);
-  Expect.isFalse(args14 is Args4);
-  Expect.isFalse(args14 is Args5);
-  Expect.isFalse(args14 is Args6);
-  Expect.isFalse(args14 is Args7);
-  Expect.isFalse(args14 is Args8);
-  Expect.isFalse(args14 is Args9);
-  Expect.isFalse(args14 is Args10);
-  Expect.isFalse(args14 is Args11);
-  Expect.isFalse(args14 is Args12);
-  Expect.isFalse(args14 is Args13);
-  Expect.isTrue(args14 is Args14);
-  Expect.isFalse(args14 is Args15);
-
-  Expect.isFalse(args15 is Args0);
-  Expect.isFalse(args15 is Args1);
-  Expect.isFalse(args15 is Args2);
-  Expect.isFalse(args15 is Args3);
-  Expect.isFalse(args15 is Args4);
-  Expect.isFalse(args15 is Args5);
-  Expect.isFalse(args15 is Args6);
-  Expect.isFalse(args15 is Args7);
-  Expect.isFalse(args15 is Args8);
-  Expect.isFalse(args15 is Args9);
-  Expect.isFalse(args15 is Args10);
-  Expect.isFalse(args15 is Args11);
-  Expect.isFalse(args15 is Args12);
-  Expect.isFalse(args15 is Args13);
-  Expect.isFalse(args15 is Args14);
-  Expect.isTrue(args15 is Args15);
-}
diff --git a/tests/language_2/function_subtype/simple2_test.dart b/tests/language_2/function_subtype/simple2_test.dart
deleted file mode 100644
index 9eb7549f1be..00000000000
--- a/tests/language_2/function_subtype/simple2_test.dart
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping of simple function types.
-
-import 'package:expect/expect.dart';
-
-typedef Args0();
-typedef Args1(a);
-typedef Args2(a, b);
-typedef Args3(a, b, c);
-typedef Args4(a, b, c, d);
-
-args0_1([a]) {}
-args1_2(a, [b]) {}
-args0_2([a, b]) {}
-args1_3(a, [b, c]) {}
-
-args0_1_named({a}) {}
-args1_2_named(a, {b}) {}
-args0_2_named({a, b}) {}
-args1_3_named(a, {b, c}) {}
-
-main() {
-  Expect.isTrue(args0_1 is Args0);
-  Expect.isTrue(args0_1 is Args1);
-  Expect.isFalse(args0_1 is Args2);
-  Expect.isFalse(args0_1 is Args3);
-  Expect.isFalse(args0_1 is Args4);
-
-  Expect.isFalse(args1_2 is Args0);
-  Expect.isTrue(args1_2 is Args1);
-  Expect.isTrue(args1_2 is Args2);
-  Expect.isFalse(args1_2 is Args3);
-  Expect.isFalse(args1_2 is Args4);
-
-  Expect.isTrue(args0_2 is Args0);
-  Expect.isTrue(args0_2 is Args1);
-  Expect.isTrue(args0_2 is Args2);
-  Expect.isFalse(args0_2 is Args3);
-  Expect.isFalse(args0_2 is Args4);
-
-  Expect.isFalse(args1_3 is Args0);
-  Expect.isTrue(args1_3 is Args1);
-  Expect.isTrue(args1_3 is Args2);
-  Expect.isTrue(args1_3 is Args3);
-  Expect.isFalse(args1_3 is Args4);
-
-  Expect.isTrue(args0_1_named is Args0);
-  Expect.isFalse(args0_1_named is Args1);
-  Expect.isFalse(args0_1_named is Args2);
-  Expect.isFalse(args0_1_named is Args3);
-  Expect.isFalse(args0_1_named is Args4);
-
-  Expect.isFalse(args1_2_named is Args0);
-  Expect.isTrue(args1_2_named is Args1);
-  Expect.isFalse(args1_2_named is Args2);
-  Expect.isFalse(args1_2_named is Args3);
-  Expect.isFalse(args1_2_named is Args4);
-
-  Expect.isTrue(args0_2_named is Args0);
-  Expect.isFalse(args0_2_named is Args1);
-  Expect.isFalse(args0_2_named is Args2);
-  Expect.isFalse(args0_2_named is Args3);
-  Expect.isFalse(args0_2_named is Args4);
-
-  Expect.isFalse(args1_3_named is Args0);
-  Expect.isTrue(args1_3_named is Args1);
-  Expect.isFalse(args1_3_named is Args2);
-  Expect.isFalse(args1_3_named is Args3);
-  Expect.isFalse(args1_3_named is Args4);
-}
diff --git a/tests/language_2/function_subtype/top_level0_test.dart b/tests/language_2/function_subtype/top_level0_test.dart
deleted file mode 100644
index 491dbfbe3df..00000000000
--- a/tests/language_2/function_subtype/top_level0_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping for top level functions.
-
-import 'package:expect/expect.dart';
-
-typedef int Foo(bool a, [String b]);
-typedef int Bar(bool a, [String b]);
-typedef int Baz(bool a, {String b});
-typedef int Boz(bool a);
-
-int foo(bool a, [String b]) => null;
-int baz(bool a, {String b}) => null;
-int boz(bool a, {int b}) => null;
-
-main() {
-  Expect.isTrue(foo is Foo, 'foo is Foo');
-  Expect.isTrue(foo is Bar, 'foo is Bar');
-  Expect.isFalse(foo is Baz, 'foo is Baz');
-  Expect.isTrue(foo is Boz, 'foo is Boz');
-
-  Expect.isFalse(baz is Foo, 'foo is Foo');
-  Expect.isFalse(baz is Bar, 'foo is Bar');
-  Expect.isTrue(baz is Baz, 'foo is Baz');
-  Expect.isTrue(baz is Boz, 'foo is Boz');
-
-  Expect.isFalse(boz is Foo, 'foo is Foo');
-  Expect.isFalse(boz is Bar, 'foo is Bar');
-  Expect.isFalse(boz is Baz, 'foo is Baz');
-  Expect.isTrue(boz is Boz, 'foo is Boz');
-}
diff --git a/tests/language_2/function_subtype/top_level1_test.dart b/tests/language_2/function_subtype/top_level1_test.dart
deleted file mode 100644
index 0334e767ff9..00000000000
--- a/tests/language_2/function_subtype/top_level1_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping for top level functions.
-
-import 'package:expect/expect.dart';
-
-typedef int Foo<T>(T a, [String b]);
-typedef int Bar<T>(T a, [String b]);
-typedef int Baz<T>(T a, {String b});
-typedef int Boz<T>(T a);
-
-int foo(bool a, [String b]) => null;
-int baz(bool a, {String b}) => null;
-int boz(bool a, {int b}) => null;
-
-class C<T> {
-  void test(String nameOfT, bool expectedResult) {
-    Expect.equals(expectedResult, foo is Foo<T>, 'foo is Foo<$nameOfT>');
-    Expect.equals(expectedResult, foo is Bar<T>, 'foo is Bar<$nameOfT>');
-    Expect.isFalse(foo is Baz<T>, 'foo is Baz<$nameOfT>');
-    Expect.equals(expectedResult, foo is Boz<T>, 'foo is Boz<$nameOfT>');
-
-    Expect.isFalse(baz is Foo<T>, 'foo is Foo<$nameOfT>');
-    Expect.isFalse(baz is Bar<T>, 'foo is Bar<$nameOfT>');
-    Expect.equals(expectedResult, baz is Baz<T>, 'foo is Baz<$nameOfT>');
-    Expect.equals(expectedResult, baz is Boz<T>, 'foo is Boz<$nameOfT>');
-
-    Expect.isFalse(boz is Foo<T>, 'foo is Foo<$nameOfT>');
-    Expect.isFalse(boz is Bar<T>, 'foo is Bar<$nameOfT>');
-    Expect.isFalse(boz is Baz<T>, 'foo is Baz<$nameOfT>');
-    Expect.equals(expectedResult, boz is Boz<T>, 'foo is Boz<$nameOfT>');
-  }
-}
-
-main() {
-  new C<bool>().test('bool', true);
-  new C<int>().test('int', false);
-  new C<Object>().test('Object', false);
-  new C<dynamic>().test('dynamic', false);
-  new C<Null>().test('Null', true);
-}
diff --git a/tests/language_2/function_subtype/typearg0_test.dart b/tests/language_2/function_subtype/typearg0_test.dart
deleted file mode 100644
index f1eb40d1fa9..00000000000
--- a/tests/language_2/function_subtype/typearg0_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping with type variables in factory constructors.
-
-import 'package:expect/expect.dart';
-
-typedef void Foo();
-
-class A<T> {
-  bool foo(a) => a is T;
-}
-
-void bar1() {}
-void bar2(i) {}
-
-void main() {
-  void bar3() {}
-  void bar4(i) {}
-
-  Expect.isTrue(new A<Foo>().foo(bar1));
-  Expect.isFalse(new A<Foo>().foo(bar2));
-  Expect.isTrue(new A<Foo>().foo(bar3));
-  Expect.isFalse(new A<Foo>().foo(bar4));
-  Expect.isTrue(new A<Foo>().foo(() {}));
-  Expect.isFalse(new A<Foo>().foo((i) {}));
-}
diff --git a/tests/language_2/function_subtype/typearg1_test.dart b/tests/language_2/function_subtype/typearg1_test.dart
deleted file mode 100644
index 8e48557825b..00000000000
--- a/tests/language_2/function_subtype/typearg1_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping of type arguments.
-
-import 'package:expect/expect.dart';
-
-class C<T> {}
-
-class I {}
-
-class J extends I {}
-
-typedef void f1(C<J> c);
-typedef void f2(C<I> c);
-
-main() {
-  Expect.isTrue(new C<f2>() is C<f1>);
-}
diff --git a/tests/language_2/function_subtype/typearg2_test.dart b/tests/language_2/function_subtype/typearg2_test.dart
deleted file mode 100644
index 2a608111185..00000000000
--- a/tests/language_2/function_subtype/typearg2_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping of type arguments.
-
-import 'package:expect/expect.dart';
-
-class C<T> {}
-
-class I {}
-
-class J extends I {}
-
-typedef void f1(C<J> c);
-typedef void f2(C<I> c);
-
-main() {
-  Expect.isFalse(new C<f1>() is C<f2>);
-  Expect.isTrue(new C<f2>() is C<f1>);
-}
diff --git a/tests/language_2/function_subtype/typearg3_test.dart b/tests/language_2/function_subtype/typearg3_test.dart
deleted file mode 100644
index 8af7af933d5..00000000000
--- a/tests/language_2/function_subtype/typearg3_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check function subtyping of type arguments.
-
-import 'package:expect/expect.dart';
-
-class C<T> {}
-
-class I {}
-
-class J extends I {}
-
-typedef J f1();
-typedef I f2();
-
-main() {
-  Expect.isTrue(new C<f1>() is C<f2>);
-  Expect.isFalse(new C<f2>() is C<f1>);
-}
diff --git a/tests/language_2/function_subtype/typearg5_test.dart b/tests/language_2/function_subtype/typearg5_test.dart
deleted file mode 100644
index bcada2097ac..00000000000
--- a/tests/language_2/function_subtype/typearg5_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check function subtyping of type arguments. These cases use typedefs as type
-// arguments, and the typedefs have type parameters that are used more than
-// once.
-
-import 'package:expect/expect.dart';
-
-typedef A F<A>(A arg1, A arg2);
-typedef B G<A, B>(B arg1, B arg2);
-
-typedef Set<A> FS<A>(Set<A> arg1, Set<A> arg2);
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-dyn(x) => x;
-
-class CheckEnv<X, Y> {
-  test(bool intX) {
-    Expect.isTrue(<F<X>>[] is! List<F>);
-    Expect.isTrue(<F<X>>[] is List<F<X>>);
-    Expect.isTrue(<F<X>>[] is List<G<Y, X>>);
-
-    Expect.isTrue(dyn(<F<X>>[]) is! List<F>);
-    Expect.isTrue(dyn(<F<X>>[]) is List<F<X>>);
-    Expect.isTrue(dyn(<F<X>>[]) is List<G<Y, X>>);
-
-    Expect.isFalse(<F<X>>[] is List<F<Y>>);
-    Expect.isFalse(<F<X>>[] is List<G<X, Y>>);
-
-    Expect.isFalse(dyn(<F<X>>[]) is List<F<Y>>);
-    Expect.isFalse(dyn(<F<X>>[]) is List<G<X, Y>>);
-
-    Expect.isFalse(dyn(<FS<X>>[]) is List<FS>);
-    Expect.isFalse(dyn(<FS<X>>[]) is List<FS<Null>>);
-    Expect.isTrue(dyn(<FS<X>>[]) is List<FS<X>>);
-    if (intX) {
-      Expect.isTrue(dyn(<FS<X>>[]) is List<FS<int>>);
-      Expect.isTrue(dyn(<FS<int>>[]) is List<FS<X>>);
-      Expect.isFalse(dyn(<FS<Y>>[]) is List<FS<int>>);
-      Expect.isFalse(dyn(<FS<int>>[]) is List<FS<Y>>);
-    }
-  }
-}
-
-main() {
-  Expect.isTrue(<F<int>>[] is List<F<int>>);
-  Expect.isTrue(dyn(<F<int>>[]) is List<F<int>>);
-  Expect.isTrue(<F<int>>[] is List<G<bool, int>>);
-  Expect.isTrue(dyn(<F<int>>[]) is List<G<bool, int>>);
-
-  new CheckEnv<int, String>().test(true);
-  new CheckEnv<String, int>().test(false);
-}
diff --git a/tests/language_2/function_type/function_type0_test.dart b/tests/language_2/function_type/function_type0_test.dart
deleted file mode 100644
index 3678a19bdcb..00000000000
--- a/tests/language_2/function_type/function_type0_test.dart
+++ /dev/null
@@ -1,922 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int x);
-typedef F1<T> = Function Function(List<T> x);
-typedef F2<T> = core.List<core.int> Function(int y, {List<Function> x});
-typedef F3<T> = Function(int x0, {Function x});
-typedef F4<T> = Function Function<A>(int x);
-typedef F5<T> = int Function(int x0, {int x}) Function();
-typedef F6<T> = int Function([core.List<core.int> x]) Function();
-typedef F7<T> = Function Function(int y, [int x]) Function();
-typedef F8<T> = Function Function(int x1, [List<Function> x2]) Function();
-typedef F9<T> = Function Function(int x0, {List<T> x}) Function();
-typedef F10<T> = List<Function> Function(List<Function> x) Function();
-typedef F11<T> = List<Function> Function(int y, [List<T> x]) Function();
-typedef F12<T> = core.List<core.int> Function([Function x1]) Function();
-typedef F13<T> = core.List<core.int> Function({core.List<core.int> x})
-    Function();
-typedef F14<T> = List<T> Function(int y, {int x}) Function();
-typedef F15<T> = List<T> Function(int x0, [core.List<core.int> x]) Function();
-typedef F16<T> = Function(int x0) Function();
-typedef F17<T> = Function(int x, [List<Function> x2]) Function();
-typedef F18<T> = Function(int y, {List<T> x}) Function();
-typedef F19<T> = void Function([List<Function> x]) Function();
-typedef F20<T> = void Function(List<T> x0) Function();
-typedef F21<T> = List<Function> Function<A>(Function x) Function();
-typedef F22<T> = Function<A>(List<Function> x) Function();
-typedef F23<T> = void Function<A>(core.List<core.int> x) Function();
-
-int f0(int x) => null;
-Function f1(List<int> x) => null;
-core.List<core.int> f2(int y, {List<Function> x}) => null;
-f3(int x0, {Function x}) => null;
-Function f4<A>(int x) => null;
-int Function(int x0, {int x}) f5() => null;
-int Function([core.List<core.int> x]) f6() => null;
-Function Function(int y, [int x]) f7() => null;
-Function Function(int x0, [List<Function> x1]) f8() => null;
-Function Function(int x0, {List<int> x}) f9() => null;
-List<Function> Function(List<Function> x) f10() => null;
-List<Function> Function(int y, [List<int> x]) f11() => null;
-core.List<core.int> Function([Function x0]) f12() => null;
-core.List<core.int> Function({core.List<core.int> x}) f13() => null;
-List<int> Function(int y, {int x}) f14() => null;
-List<int> Function(int x0, [core.List<core.int> x]) f15() => null;
-Function(int x0) f16() => null;
-Function(int x, [List<Function> x0]) f17() => null;
-Function(int y, {List<int> x}) f18() => null;
-void Function([List<Function> x]) f19() => null;
-void Function(List<int> x0) f20() => null;
-List<Function> Function<A>(Function x) f21() => null;
-Function<A>(List<Function> x) f22() => null;
-void Function<A>(core.List<core.int> x) f23() => null;
-
-class U0<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int x) x0;
-  Function Function(List<T> x) x1;
-  core.List<core.int> Function(int y, {List<Function> x}) x2;
-  Function(int x0, {Function x}) x3;
-  Function Function<A>(int x) x4;
-  int Function(int x0, {int x}) Function() x5;
-  int Function([core.List<core.int> x]) Function() x6;
-  Function Function(int y, [int x]) Function() x7;
-  Function Function(int x1, [List<Function> x2]) Function() x8;
-  Function Function(int x0, {List<T> x}) Function() x9;
-  List<Function> Function(List<Function> x) Function() x10;
-  List<Function> Function(int y, [List<T> x]) Function() x11;
-  core.List<core.int> Function([Function x1]) Function() x12;
-  core.List<core.int> Function({core.List<core.int> x}) Function() x13;
-  List<T> Function(int y, {int x}) Function() x14;
-  List<T> Function(int x0, [core.List<core.int> x]) Function() x15;
-  Function(int x0) Function() x16;
-  Function(int x, [List<Function> x2]) Function() x17;
-  Function(int y, {List<T> x}) Function() x18;
-  void Function([List<Function> x]) Function() x19;
-  void Function(List<T> x0) Function() x20;
-  List<Function> Function<A>(Function x) Function() x21;
-  Function<A>(List<Function> x) Function() x22;
-  void Function<A>(core.List<core.int> x) Function() x23;
-
-  U0({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int x) => null;
-  Function m1(List<T> x) => null;
-  core.List<core.int> m2(int y, {List<Function> x}) => null;
-  m3(int x0, {Function x}) => null;
-  Function m4<A>(int x) => null;
-  int Function(int x0, {int x}) m5() => null;
-  int Function([core.List<core.int> x]) m6() => null;
-  Function Function(int y, [int x]) m7() => null;
-  Function Function(int x0, [List<Function> x1]) m8() => null;
-  Function Function(int x0, {List<T> x}) m9() => null;
-  List<Function> Function(List<Function> x) m10() => null;
-  List<Function> Function(int y, [List<T> x]) m11() => null;
-  core.List<core.int> Function([Function x0]) m12() => null;
-  core.List<core.int> Function({core.List<core.int> x}) m13() => null;
-  List<T> Function(int y, {int x}) m14() => null;
-  List<T> Function(int x0, [core.List<core.int> x]) m15() => null;
-  Function(int x0) m16() => null;
-  Function(int x, [List<Function> x0]) m17() => null;
-  Function(int y, {List<T> x}) m18() => null;
-  void Function([List<Function> x]) m19() => null;
-  void Function(List<T> x0) m20() => null;
-  List<Function> Function<A>(Function x) m21() => null;
-  Function<A>(List<Function> x) m22() => null;
-  void Function<A>(core.List<core.int> x) m23() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int x)
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int x) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int x));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// Function Function(List<T> x)
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    Function Function(List<T> x) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is Function Function(List<T> x));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-    // The static function has its T always set to int.
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isFalse(f1 is F1<bool>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    Expect.isFalse(confuse(f1) is F1<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        x1 = confuse(f1);
-      });
-      Expect.throws(() {
-        l1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        l1 = confuse(f1);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m1 is F1<int>);
-      Expect.equals(true, m1 is F1<bool>);
-      Expect.equals(true, confuse(m1) is F1<int>);
-      Expect.equals(true, confuse(m1) is F1<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int y, {List<Function> x})
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, {List<Function> x}) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(
-        m2 is core.List<core.int> Function(int y, {List<Function> x}));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// Function(int x0, {Function x})
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function(int x0, {Function x}) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function(int x0, {Function x}));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// Function Function<A>(int x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(int x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is Function Function<A>(int x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x0, {int x}) Function()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x0, {int x}) Function() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x0, {int x}) Function());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function([core.List<core.int> x]) Function()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function([core.List<core.int> x]) Function() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function([core.List<core.int> x]) Function());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int y, [int x]) Function()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, [int x]) Function() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int y, [int x]) Function());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x1, [List<Function> x2]) Function()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, [List<Function> x2]) Function() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(
-        m8 is Function Function(int x1, [List<Function> x2]) Function());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// Function Function(int x0, {List<T> x}) Function()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x0, {List<T> x}) Function() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is Function Function(int x0, {List<T> x}) Function());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-    // The static function has its T always set to int.
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isFalse(f9 is F9<bool>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    Expect.isFalse(confuse(f9) is F9<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x9 = (f9 as dynamic);
-      });
-      Expect.throws(() {
-        x9 = confuse(f9);
-      });
-      Expect.throws(() {
-        l9 = (f9 as dynamic);
-      });
-      Expect.throws(() {
-        l9 = confuse(f9);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m9 is F9<int>);
-      Expect.equals(tIsBool, m9 is F9<bool>);
-      Expect.equals(tIsInt, confuse(m9) is F9<int>);
-      Expect.equals(tIsBool, confuse(m9) is F9<bool>);
-    }
-  }
-
-  /// List<Function> Function(List<Function> x) Function()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(List<Function> x) Function() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(List<Function> x) Function());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function(int y, [List<T> x]) Function()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, [List<T> x]) Function() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is List<Function> Function(int y, [List<T> x]) Function());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function([Function x1]) Function()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([Function x1]) Function() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(
-        m12 is core.List<core.int> Function([Function x1]) Function());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function({core.List<core.int> x}) Function()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function({core.List<core.int> x}) Function() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function({core.List<core.int> x})
-        Function());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-  }
-
-  /// List<T> Function(int y, {int x}) Function()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, {int x}) Function() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int y, {int x}) Function());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x0, [core.List<core.int> x]) Function()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x0, [core.List<core.int> x]) Function() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(
-        m15 is List<T> Function(int x0, [core.List<core.int> x]) Function());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x0) Function()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x0) Function() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x0) Function());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x, [List<Function> x2]) Function()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x, [List<Function> x2]) Function() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x, [List<Function> x2]) Function());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// Function(int y, {List<T> x}) Function()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    Function(int y, {List<T> x}) Function() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is Function(int y, {List<T> x}) Function());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-    // The static function has its T always set to int.
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isFalse(f18 is F18<bool>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    Expect.isFalse(confuse(f18) is F18<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x18 = (f18 as dynamic);
-      });
-      Expect.throws(() {
-        x18 = confuse(f18);
-      });
-      Expect.throws(() {
-        l18 = (f18 as dynamic);
-      });
-      Expect.throws(() {
-        l18 = confuse(f18);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m18 is F18<int>);
-      Expect.equals(tIsBool, m18 is F18<bool>);
-      Expect.equals(tIsInt, confuse(m18) is F18<int>);
-      Expect.equals(tIsBool, confuse(m18) is F18<bool>);
-    }
-  }
-
-  /// void Function([List<Function> x]) Function()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function([List<Function> x]) Function() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function([List<Function> x]) Function());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function(List<T> x0) Function()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function(List<T> x0) Function() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is void Function(List<T> x0) Function());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(Function x) Function()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(Function x) Function() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<Function> Function<A>(Function x) Function());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// Function<A>(List<Function> x) Function()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    Function<A>(List<Function> x) Function() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is Function<A>(List<Function> x) Function());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// void Function<A>(core.List<core.int> x) Function()
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(core.List<core.int> x) Function() l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is void Function<A>(core.List<core.int> x) Function());
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U0().runTests();
-  new U0<int>(tIsInt: true).runTests();
-  new U0<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type10_test.dart b/tests/language_2/function_type/function_type10_test.dart
deleted file mode 100644
index d54897aa397..00000000000
--- a/tests/language_2/function_type/function_type10_test.dart
+++ /dev/null
@@ -1,936 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int y, {int x});
-typedef F1<T> = Function Function(int y, {List<T> x});
-typedef F2<T> = core.List<core.int> Function(int x0, {core.List<core.int> x});
-typedef F3<T> = Function({List<Function> x});
-typedef F4<T> = List<Function> Function<A>(List<Function> x);
-typedef F5<T> = int Function(Function x) Function<B extends core.int>();
-typedef F6<T> = int Function(int y, [core.List<core.int> x])
-    Function<B extends core.int>();
-typedef F7<T> = Function Function([int x1]) Function<B extends core.int>();
-typedef F8<T> = Function Function({List<Function> x})
-    Function<B extends core.int>();
-typedef F9<T> = Function Function() Function<B extends core.int>();
-typedef F10<T> = List<Function> Function(int x1, [List<Function> x])
-    Function<B extends core.int>();
-typedef F11<T> = List<Function> Function([List<T> x1])
-    Function<B extends core.int>();
-typedef F12<T> = core.List<core.int> Function(int x, [Function x1])
-    Function<B extends core.int>();
-typedef F13<T> = core.List<core.int> Function(int y, {core.List<core.int> x})
-    Function<B extends core.int>();
-typedef F14<T> = List<T> Function([Function x]) Function<B extends core.int>();
-typedef F15<T> = List<T> Function(core.List<core.int> x1)
-    Function<B extends core.int>();
-typedef F16<T> = Function(int x2, [int x3]) Function<B extends core.int>();
-typedef F17<T> = Function(int x1, {List<Function> x})
-    Function<B extends core.int>();
-typedef F18<T> = void Function(int x) Function<B extends core.int>();
-typedef F19<T> = void Function(int y, [List<Function> x])
-    Function<B extends core.int>();
-typedef F20<T> = void Function(int x2, [List<T> x3])
-    Function<B extends core.int>();
-typedef F21<T> = List<Function> Function<A>(core.List<core.int> x)
-    Function<B extends core.int>();
-typedef F22<T> = Function<A>(List<T> x) Function<B extends core.int>();
-typedef F23<T> = void Function<A>() Function<B extends core.int>();
-
-int f0(int y, {int x}) => null;
-Function f1(int y, {List<int> x}) => null;
-core.List<core.int> f2(int x0, {core.List<core.int> x}) => null;
-f3({List<Function> x}) => null;
-List<Function> f4<A>(List<Function> x) => null;
-int Function(Function x) f5<B extends core.int>() => null;
-int Function(int y, [core.List<core.int> x]) f6<B extends core.int>() => null;
-Function Function([int x0]) f7<B extends core.int>() => null;
-Function Function({List<Function> x}) f8<B extends core.int>() => null;
-Function Function() f9<B extends core.int>() => null;
-List<Function> Function(int x0, [List<Function> x]) f10<B extends core.int>() =>
-    null;
-List<Function> Function([List<int> x0]) f11<B extends core.int>() => null;
-core.List<core.int> Function(int x, [Function x0]) f12<B extends core.int>() =>
-    null;
-core.List<core.int> Function(int y, {core.List<core.int> x})
-    f13<B extends core.int>() => null;
-List<int> Function([Function x]) f14<B extends core.int>() => null;
-List<int> Function(core.List<core.int> x0) f15<B extends core.int>() => null;
-Function(int x0, [int x1]) f16<B extends core.int>() => null;
-Function(int x0, {List<Function> x}) f17<B extends core.int>() => null;
-void Function(int x) f18<B extends core.int>() => null;
-void Function(int y, [List<Function> x]) f19<B extends core.int>() => null;
-void Function(int x0, [List<int> x1]) f20<B extends core.int>() => null;
-List<Function> Function<A>(core.List<core.int> x) f21<B extends core.int>() =>
-    null;
-Function<A>(List<int> x) f22<B extends core.int>() => null;
-void Function<A>() f23<B extends core.int>() => null;
-
-class U10<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int y, {int x}) x0;
-  Function Function(int y, {List<T> x}) x1;
-  core.List<core.int> Function(int x0, {core.List<core.int> x}) x2;
-  Function({List<Function> x}) x3;
-  List<Function> Function<A>(List<Function> x) x4;
-  int Function(Function x) Function<B extends core.int>() x5;
-  int Function(int y, [core.List<core.int> x]) Function<B extends core.int>()
-      x6;
-  Function Function([int x1]) Function<B extends core.int>() x7;
-  Function Function({List<Function> x}) Function<B extends core.int>() x8;
-  Function Function() Function<B extends core.int>() x9;
-  List<Function> Function(int x1, [List<Function> x])
-      Function<B extends core.int>() x10;
-  List<Function> Function([List<T> x1]) Function<B extends core.int>() x11;
-  core.List<core.int> Function(int x, [Function x1])
-      Function<B extends core.int>() x12;
-  core.List<core.int> Function(int y, {core.List<core.int> x})
-      Function<B extends core.int>() x13;
-  List<T> Function([Function x]) Function<B extends core.int>() x14;
-  List<T> Function(core.List<core.int> x1) Function<B extends core.int>() x15;
-  Function(int x2, [int x3]) Function<B extends core.int>() x16;
-  Function(int x1, {List<Function> x}) Function<B extends core.int>() x17;
-  void Function(int x) Function<B extends core.int>() x18;
-  void Function(int y, [List<Function> x]) Function<B extends core.int>() x19;
-  void Function(int x2, [List<T> x3]) Function<B extends core.int>() x20;
-  List<Function> Function<A>(core.List<core.int> x)
-      Function<B extends core.int>() x21;
-  Function<A>(List<T> x) Function<B extends core.int>() x22;
-  void Function<A>() Function<B extends core.int>() x23;
-
-  U10({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int y, {int x}) => null;
-  Function m1(int y, {List<T> x}) => null;
-  core.List<core.int> m2(int x0, {core.List<core.int> x}) => null;
-  m3({List<Function> x}) => null;
-  List<Function> m4<A>(List<Function> x) => null;
-  int Function(Function x) m5<B extends core.int>() => null;
-  int Function(int y, [core.List<core.int> x]) m6<B extends core.int>() => null;
-  Function Function([int x0]) m7<B extends core.int>() => null;
-  Function Function({List<Function> x}) m8<B extends core.int>() => null;
-  Function Function() m9<B extends core.int>() => null;
-  List<Function> Function(int x0, [List<Function> x])
-      m10<B extends core.int>() => null;
-  List<Function> Function([List<T> x0]) m11<B extends core.int>() => null;
-  core.List<core.int> Function(int x, [Function x0])
-      m12<B extends core.int>() => null;
-  core.List<core.int> Function(int y, {core.List<core.int> x})
-      m13<B extends core.int>() => null;
-  List<T> Function([Function x]) m14<B extends core.int>() => null;
-  List<T> Function(core.List<core.int> x0) m15<B extends core.int>() => null;
-  Function(int x0, [int x1]) m16<B extends core.int>() => null;
-  Function(int x0, {List<Function> x}) m17<B extends core.int>() => null;
-  void Function(int x) m18<B extends core.int>() => null;
-  void Function(int y, [List<Function> x]) m19<B extends core.int>() => null;
-  void Function(int x0, [List<T> x1]) m20<B extends core.int>() => null;
-  List<Function> Function<A>(core.List<core.int> x) m21<B extends core.int>() =>
-      null;
-  Function<A>(List<T> x) m22<B extends core.int>() => null;
-  void Function<A>() m23<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int y, {int x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, {int x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int y, {int x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// Function Function(int y, {List<T> x})
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, {List<T> x}) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is Function Function(int y, {List<T> x}));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-    // The static function has its T always set to int.
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isFalse(f1 is F1<bool>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    Expect.isFalse(confuse(f1) is F1<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        x1 = confuse(f1);
-      });
-      Expect.throws(() {
-        l1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        l1 = confuse(f1);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m1 is F1<int>);
-      Expect.equals(true, m1 is F1<bool>);
-      Expect.equals(true, confuse(m1) is F1<int>);
-      Expect.equals(true, confuse(m1) is F1<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int x0, {core.List<core.int> x})
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x0, {core.List<core.int> x}) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(
-        m2 is core.List<core.int> Function(int x0, {core.List<core.int> x}));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// Function({List<Function> x})
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function({List<Function> x}) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function({List<Function> x}));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// List<Function> Function<A>(List<Function> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(List<Function> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is List<Function> Function<A>(List<Function> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(Function x) Function<B extends core.int>()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(Function x) Function<B extends core.int>() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(
-        m5 is int Function(Function x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int y, [core.List<core.int> x]) Function<B extends core.int>()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, [core.List<core.int> x]) Function<B extends core.int>()
-        l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int y, [core.List<core.int> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function([int x1]) Function<B extends core.int>()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function([int x1]) Function<B extends core.int>() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(
-        m7 is Function Function([int x1]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function({List<Function> x}) Function<B extends core.int>()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function({List<Function> x}) Function<B extends core.int>() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function({List<Function> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// Function Function() Function<B extends core.int>()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    Function Function() Function<B extends core.int>() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is Function Function() Function<B extends core.int>());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x1, [List<Function> x]) Function<B extends core.int>()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, [List<Function> x])
-        Function<B extends core.int>() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x1, [List<Function> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function([List<T> x1]) Function<B extends core.int>()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([List<T> x1]) Function<B extends core.int>() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is List<Function> Function([List<T> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int x, [Function x1]) Function<B extends core.int>()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x, [Function x1])
-        Function<B extends core.int>() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x, [Function x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int y, {core.List<core.int> x}) Function<B extends core.int>()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, {core.List<core.int> x})
-        Function<B extends core.int>() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(int y,
-            {core.List<core.int> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-  }
-
-  /// List<T> Function([Function x]) Function<B extends core.int>()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([Function x]) Function<B extends core.int>() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(
-        m14 is List<T> Function([Function x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(core.List<core.int> x1) Function<B extends core.int>()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(core.List<core.int> x1) Function<B extends core.int>() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(core.List<core.int> x1)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x2, [int x3]) Function<B extends core.int>()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x2, [int x3]) Function<B extends core.int>() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function(int x2, [int x3]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x1, {List<Function> x}) Function<B extends core.int>()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, {List<Function> x}) Function<B extends core.int>() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x1, {List<Function> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int x) Function<B extends core.int>()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x) Function<B extends core.int>() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int y, [List<Function> x]) Function<B extends core.int>()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, [List<Function> x]) Function<B extends core.int>() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int y, [List<Function> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function(int x2, [List<T> x3]) Function<B extends core.int>()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function(int x2, [List<T> x3]) Function<B extends core.int>() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is void Function(int x2, [List<T> x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(core.List<core.int> x) Function<B extends core.int>()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(core.List<core.int> x)
-        Function<B extends core.int>() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<Function> Function<A>(core.List<core.int> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// Function<A>(List<T> x) Function<B extends core.int>()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    Function<A>(List<T> x) Function<B extends core.int>() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is Function<A>(List<T> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-    // The static function has its T always set to int.
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isFalse(f22 is F22<bool>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    Expect.isFalse(confuse(f22) is F22<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x22 = (f22 as dynamic);
-      });
-      Expect.throws(() {
-        x22 = confuse(f22);
-      });
-      Expect.throws(() {
-        l22 = (f22 as dynamic);
-      });
-      Expect.throws(() {
-        l22 = confuse(f22);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m22 is F22<int>);
-      Expect.equals(tIsBool, m22 is F22<bool>);
-      Expect.equals(tIsInt, confuse(m22) is F22<int>);
-      Expect.equals(tIsBool, confuse(m22) is F22<bool>);
-    }
-  }
-
-  /// void Function<A>() Function<B extends core.int>()
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    void Function<A>() Function<B extends core.int>() l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is void Function<A>() Function<B extends core.int>());
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U10().runTests();
-  new U10<int>(tIsInt: true).runTests();
-  new U10<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type11_test.dart b/tests/language_2/function_type/function_type11_test.dart
deleted file mode 100644
index 8f3439c4ae8..00000000000
--- a/tests/language_2/function_type/function_type11_test.dart
+++ /dev/null
@@ -1,934 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(Function x);
-typedef F1<T> = Function Function();
-typedef F2<T> = core.List<core.int> Function(int y, {core.List<core.int> x});
-typedef F3<T> = Function(int x0, {List<Function> x});
-typedef F4<T> = List<Function> Function<A>(core.List<core.int> x);
-typedef F5<T> = int Function(Function x) Function<B extends core.int>(int x);
-typedef F6<T> = int Function(int y, [core.List<core.int> x])
-    Function<B extends core.int>(int x);
-typedef F7<T> = Function Function([int x1]) Function<B extends core.int>(int x);
-typedef F8<T> = Function Function({List<Function> x})
-    Function<B extends core.int>(int x);
-typedef F9<T> = Function Function() Function<B extends core.int>(int x);
-typedef F10<T> = List<Function> Function(int x1, [List<Function> x])
-    Function<B extends core.int>(int x);
-typedef F11<T> = List<Function> Function([List<T> x1])
-    Function<B extends core.int>(int x);
-typedef F12<T> = core.List<core.int> Function(int x, [Function x1])
-    Function<B extends core.int>(int x);
-typedef F13<T> = core.List<core.int> Function(int y, {core.List<core.int> x})
-    Function<B extends core.int>(int x);
-typedef F14<T> = List<T> Function([Function x]) Function<B extends core.int>(
-    int x);
-typedef F15<T> = List<T> Function(core.List<core.int> x1)
-    Function<B extends core.int>(int x);
-typedef F16<T> = Function(int x2, [int x3]) Function<B extends core.int>(int x);
-typedef F17<T> = Function(int x1, {List<Function> x})
-    Function<B extends core.int>(int x);
-typedef F18<T> = void Function(int x) Function<B extends core.int>(int x);
-typedef F19<T> = void Function(int y, [List<Function> x])
-    Function<B extends core.int>(int x);
-typedef F20<T> = void Function(int x2, [List<T> x3])
-    Function<B extends core.int>(int x);
-typedef F21<T> = List<Function> Function<A>(core.List<core.int> x)
-    Function<B extends core.int>(int x);
-typedef F22<T> = Function<A>(List<T> x) Function<B extends core.int>(int x);
-typedef F23<T> = void Function<A>() Function<B extends core.int>(int x);
-
-int f0(Function x) => null;
-Function f1() => null;
-core.List<core.int> f2(int y, {core.List<core.int> x}) => null;
-f3(int x0, {List<Function> x}) => null;
-List<Function> f4<A>(core.List<core.int> x) => null;
-int Function(Function x) f5<B extends core.int>(int x) => null;
-int Function(int y, [core.List<core.int> x]) f6<B extends core.int>(int x) =>
-    null;
-Function Function([int x0]) f7<B extends core.int>(int x) => null;
-Function Function({List<Function> x}) f8<B extends core.int>(int x) => null;
-Function Function() f9<B extends core.int>(int x) => null;
-List<Function> Function(int x0, [List<Function> x]) f10<B extends core.int>(
-        int x) =>
-    null;
-List<Function> Function([List<int> x0]) f11<B extends core.int>(int x) => null;
-core.List<core.int> Function(int x, [Function x0]) f12<B extends core.int>(
-        int x) =>
-    null;
-core.List<core.int> Function(int y, {core.List<core.int> x})
-    f13<B extends core.int>(int x) => null;
-List<int> Function([Function x]) f14<B extends core.int>(int x) => null;
-List<int> Function(core.List<core.int> x0) f15<B extends core.int>(int x) =>
-    null;
-Function(int x0, [int x1]) f16<B extends core.int>(int x) => null;
-Function(int x0, {List<Function> x}) f17<B extends core.int>(int x) => null;
-void Function(int x) f18<B extends core.int>(int x) => null;
-void Function(int y, [List<Function> x]) f19<B extends core.int>(int x) => null;
-void Function(int x0, [List<int> x1]) f20<B extends core.int>(int x) => null;
-List<Function> Function<A>(core.List<core.int> x) f21<B extends core.int>(
-        int x) =>
-    null;
-Function<A>(List<int> x) f22<B extends core.int>(int x) => null;
-void Function<A>() f23<B extends core.int>(int x) => null;
-
-class U11<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(Function x) x0;
-  Function Function() x1;
-  core.List<core.int> Function(int y, {core.List<core.int> x}) x2;
-  Function(int x0, {List<Function> x}) x3;
-  List<Function> Function<A>(core.List<core.int> x) x4;
-  int Function(Function x) Function<B extends core.int>(int x) x5;
-  int Function(int y, [core.List<core.int> x]) Function<B extends core.int>(
-      int x) x6;
-  Function Function([int x1]) Function<B extends core.int>(int x) x7;
-  Function Function({List<Function> x}) Function<B extends core.int>(int x) x8;
-  Function Function() Function<B extends core.int>(int x) x9;
-  List<Function> Function(int x1, [List<Function> x])
-      Function<B extends core.int>(int x) x10;
-  List<Function> Function([List<T> x1]) Function<B extends core.int>(int x) x11;
-  core.List<core.int> Function(int x, [Function x1])
-      Function<B extends core.int>(int x) x12;
-  core.List<core.int> Function(int y, {core.List<core.int> x})
-      Function<B extends core.int>(int x) x13;
-  List<T> Function([Function x]) Function<B extends core.int>(int x) x14;
-  List<T> Function(core.List<core.int> x1) Function<B extends core.int>(int x)
-      x15;
-  Function(int x2, [int x3]) Function<B extends core.int>(int x) x16;
-  Function(int x1, {List<Function> x}) Function<B extends core.int>(int x) x17;
-  void Function(int x) Function<B extends core.int>(int x) x18;
-  void Function(int y, [List<Function> x]) Function<B extends core.int>(int x)
-      x19;
-  void Function(int x2, [List<T> x3]) Function<B extends core.int>(int x) x20;
-  List<Function> Function<A>(core.List<core.int> x)
-      Function<B extends core.int>(int x) x21;
-  Function<A>(List<T> x) Function<B extends core.int>(int x) x22;
-  void Function<A>() Function<B extends core.int>(int x) x23;
-
-  U11({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(Function x) => null;
-  Function m1() => null;
-  core.List<core.int> m2(int y, {core.List<core.int> x}) => null;
-  m3(int x0, {List<Function> x}) => null;
-  List<Function> m4<A>(core.List<core.int> x) => null;
-  int Function(Function x) m5<B extends core.int>(int x) => null;
-  int Function(int y, [core.List<core.int> x]) m6<B extends core.int>(int x) =>
-      null;
-  Function Function([int x0]) m7<B extends core.int>(int x) => null;
-  Function Function({List<Function> x}) m8<B extends core.int>(int x) => null;
-  Function Function() m9<B extends core.int>(int x) => null;
-  List<Function> Function(int x0, [List<Function> x]) m10<B extends core.int>(
-          int x) =>
-      null;
-  List<Function> Function([List<T> x0]) m11<B extends core.int>(int x) => null;
-  core.List<core.int> Function(int x, [Function x0]) m12<B extends core.int>(
-          int x) =>
-      null;
-  core.List<core.int> Function(int y, {core.List<core.int> x})
-      m13<B extends core.int>(int x) => null;
-  List<T> Function([Function x]) m14<B extends core.int>(int x) => null;
-  List<T> Function(core.List<core.int> x0) m15<B extends core.int>(int x) =>
-      null;
-  Function(int x0, [int x1]) m16<B extends core.int>(int x) => null;
-  Function(int x0, {List<Function> x}) m17<B extends core.int>(int x) => null;
-  void Function(int x) m18<B extends core.int>(int x) => null;
-  void Function(int y, [List<Function> x]) m19<B extends core.int>(int x) =>
-      null;
-  void Function(int x0, [List<T> x1]) m20<B extends core.int>(int x) => null;
-  List<Function> Function<A>(core.List<core.int> x) m21<B extends core.int>(
-          int x) =>
-      null;
-  Function<A>(List<T> x) m22<B extends core.int>(int x) => null;
-  void Function<A>() m23<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(Function x)
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(Function x) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(Function x));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// Function Function()
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    Function Function() l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is Function Function());
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// core.List<core.int> Function(int y, {core.List<core.int> x})
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, {core.List<core.int> x}) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(
-        m2 is core.List<core.int> Function(int y, {core.List<core.int> x}));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// Function(int x0, {List<Function> x})
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function(int x0, {List<Function> x}) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function(int x0, {List<Function> x}));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// List<Function> Function<A>(core.List<core.int> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(core.List<core.int> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is List<Function> Function<A>(core.List<core.int> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(Function x) Function<B extends core.int>(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(Function x) Function<B extends core.int>(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(
-        m5 is int Function(Function x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int y, [core.List<core.int> x]) Function<B extends core.int>(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, [core.List<core.int> x]) Function<B extends core.int>(
-        int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int y, [core.List<core.int> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function([int x1]) Function<B extends core.int>(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function([int x1]) Function<B extends core.int>(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(
-        m7 is Function Function([int x1]) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function({List<Function> x}) Function<B extends core.int>(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function({List<Function> x}) Function<B extends core.int>(int x)
-        l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function({List<Function> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// Function Function() Function<B extends core.int>(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    Function Function() Function<B extends core.int>(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(
-        m9 is Function Function() Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x1, [List<Function> x]) Function<B extends core.int>(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, [List<Function> x])
-        Function<B extends core.int>(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x1, [List<Function> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function([List<T> x1]) Function<B extends core.int>(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([List<T> x1]) Function<B extends core.int>(int x)
-        l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is List<Function> Function([List<T> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int x, [Function x1]) Function<B extends core.int>(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x, [Function x1])
-        Function<B extends core.int>(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x, [Function x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int y, {core.List<core.int> x}) Function<B extends core.int>(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, {core.List<core.int> x})
-        Function<B extends core.int>(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(int y,
-            {core.List<core.int> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-  }
-
-  /// List<T> Function([Function x]) Function<B extends core.int>(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([Function x]) Function<B extends core.int>(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function([Function x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(core.List<core.int> x1) Function<B extends core.int>(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(core.List<core.int> x1) Function<B extends core.int>(int x)
-        l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(core.List<core.int> x1)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x2, [int x3]) Function<B extends core.int>(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x2, [int x3]) Function<B extends core.int>(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function(int x2, [int x3]) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x1, {List<Function> x}) Function<B extends core.int>(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, {List<Function> x}) Function<B extends core.int>(int x)
-        l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x1, {List<Function> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int x) Function<B extends core.int>(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x) Function<B extends core.int>(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(
-        m18 is void Function(int x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int y, [List<Function> x]) Function<B extends core.int>(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, [List<Function> x]) Function<B extends core.int>(int x)
-        l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int y, [List<Function> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function(int x2, [List<T> x3]) Function<B extends core.int>(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function(int x2, [List<T> x3]) Function<B extends core.int>(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is void Function(int x2, [List<T> x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(core.List<core.int> x) Function<B extends core.int>(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(core.List<core.int> x)
-        Function<B extends core.int>(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<Function> Function<A>(core.List<core.int> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// Function<A>(List<T> x) Function<B extends core.int>(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    Function<A>(List<T> x) Function<B extends core.int>(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(
-        m22 is Function<A>(List<T> x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-    // The static function has its T always set to int.
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isFalse(f22 is F22<bool>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    Expect.isFalse(confuse(f22) is F22<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x22 = (f22 as dynamic);
-      });
-      Expect.throws(() {
-        x22 = confuse(f22);
-      });
-      Expect.throws(() {
-        l22 = (f22 as dynamic);
-      });
-      Expect.throws(() {
-        l22 = confuse(f22);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m22 is F22<int>);
-      Expect.equals(tIsBool, m22 is F22<bool>);
-      Expect.equals(tIsInt, confuse(m22) is F22<int>);
-      Expect.equals(tIsBool, confuse(m22) is F22<bool>);
-    }
-  }
-
-  /// void Function<A>() Function<B extends core.int>(int x)
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    void Function<A>() Function<B extends core.int>(int x) l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(
-        m23 is void Function<A>() Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U11().runTests();
-  new U11<int>(tIsInt: true).runTests();
-  new U11<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type12_test.dart b/tests/language_2/function_type/function_type12_test.dart
deleted file mode 100644
index 24eefa31e47..00000000000
--- a/tests/language_2/function_type/function_type12_test.dart
+++ /dev/null
@@ -1,943 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function([Function x]);
-typedef F1<T> = List<Function> Function(int x);
-typedef F2<T> = core.List<core.int> Function(List<T> x);
-typedef F3<T> = Function(int y, {List<Function> x});
-typedef F4<T> = List<Function> Function<A>(List<T> x);
-typedef F5<T> = int Function([Function x]) Function();
-typedef F6<T> = int Function(core.List<core.int> x0) Function();
-typedef F7<T> = Function Function(int x1, [int x2]) Function();
-typedef F8<T> = Function Function(int x0, {List<Function> x}) Function();
-typedef F9<T> = List<Function> Function(int x) Function();
-typedef F10<T> = List<Function> Function(int y, [List<Function> x]) Function();
-typedef F11<T> = List<Function> Function(int x1, [List<T> x2]) Function();
-typedef F12<T> = core.List<core.int> Function({Function x}) Function();
-typedef F13<T> = core.List<core.int> Function(List<T> x) Function();
-typedef F14<T> = List<T> Function(int x0, [Function x]) Function();
-typedef F15<T> = List<T> Function([core.List<core.int> x1]) Function();
-typedef F16<T> = Function(int x, [int x2]) Function();
-typedef F17<T> = Function(int y, {List<Function> x}) Function();
-typedef F18<T> = void Function([int x]) Function();
-typedef F19<T> = void Function(List<Function> x0) Function();
-typedef F20<T> = void Function(int x, [List<T> x2]) Function();
-typedef F21<T> = List<Function> Function<A>(List<T> x) Function();
-typedef F22<T> = Function<A>() Function();
-typedef F23<T> = void Function<A>(A x) Function();
-
-int f0([Function x]) => null;
-List<Function> f1(int x) => null;
-core.List<core.int> f2(List<int> x) => null;
-f3(int y, {List<Function> x}) => null;
-List<Function> f4<A>(List<int> x) => null;
-int Function([Function x]) f5() => null;
-int Function(core.List<core.int> x0) f6() => null;
-Function Function(int x0, [int x1]) f7() => null;
-Function Function(int x0, {List<Function> x}) f8() => null;
-List<Function> Function(int x) f9() => null;
-List<Function> Function(int y, [List<Function> x]) f10() => null;
-List<Function> Function(int x0, [List<int> x1]) f11() => null;
-core.List<core.int> Function({Function x}) f12() => null;
-core.List<core.int> Function(List<int> x) f13() => null;
-List<int> Function(int x0, [Function x]) f14() => null;
-List<int> Function([core.List<core.int> x0]) f15() => null;
-Function(int x, [int x0]) f16() => null;
-Function(int y, {List<Function> x}) f17() => null;
-void Function([int x]) f18() => null;
-void Function(List<Function> x0) f19() => null;
-void Function(int x, [List<int> x0]) f20() => null;
-List<Function> Function<A>(List<int> x) f21() => null;
-Function<A>() f22() => null;
-void Function<A>(A x) f23() => null;
-
-class U12<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function([Function x]) x0;
-  List<Function> Function(int x) x1;
-  core.List<core.int> Function(List<T> x) x2;
-  Function(int y, {List<Function> x}) x3;
-  List<Function> Function<A>(List<T> x) x4;
-  int Function([Function x]) Function() x5;
-  int Function(core.List<core.int> x0) Function() x6;
-  Function Function(int x1, [int x2]) Function() x7;
-  Function Function(int x0, {List<Function> x}) Function() x8;
-  List<Function> Function(int x) Function() x9;
-  List<Function> Function(int y, [List<Function> x]) Function() x10;
-  List<Function> Function(int x1, [List<T> x2]) Function() x11;
-  core.List<core.int> Function({Function x}) Function() x12;
-  core.List<core.int> Function(List<T> x) Function() x13;
-  List<T> Function(int x0, [Function x]) Function() x14;
-  List<T> Function([core.List<core.int> x1]) Function() x15;
-  Function(int x, [int x2]) Function() x16;
-  Function(int y, {List<Function> x}) Function() x17;
-  void Function([int x]) Function() x18;
-  void Function(List<Function> x0) Function() x19;
-  void Function(int x, [List<T> x2]) Function() x20;
-  List<Function> Function<A>(List<T> x) Function() x21;
-  Function<A>() Function() x22;
-  void Function<A>(A x) Function() x23;
-
-  U12({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0([Function x]) => null;
-  List<Function> m1(int x) => null;
-  core.List<core.int> m2(List<T> x) => null;
-  m3(int y, {List<Function> x}) => null;
-  List<Function> m4<A>(List<T> x) => null;
-  int Function([Function x]) m5() => null;
-  int Function(core.List<core.int> x0) m6() => null;
-  Function Function(int x0, [int x1]) m7() => null;
-  Function Function(int x0, {List<Function> x}) m8() => null;
-  List<Function> Function(int x) m9() => null;
-  List<Function> Function(int y, [List<Function> x]) m10() => null;
-  List<Function> Function(int x0, [List<T> x1]) m11() => null;
-  core.List<core.int> Function({Function x}) m12() => null;
-  core.List<core.int> Function(List<T> x) m13() => null;
-  List<T> Function(int x0, [Function x]) m14() => null;
-  List<T> Function([core.List<core.int> x0]) m15() => null;
-  Function(int x, [int x0]) m16() => null;
-  Function(int y, {List<Function> x}) m17() => null;
-  void Function([int x]) m18() => null;
-  void Function(List<Function> x0) m19() => null;
-  void Function(int x, [List<T> x0]) m20() => null;
-  List<Function> Function<A>(List<T> x) m21() => null;
-  Function<A>() m22() => null;
-  void Function<A>(A x) m23() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function([Function x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function([Function x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function([Function x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(int x)
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(int x));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// core.List<core.int> Function(List<T> x)
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(List<T> x) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is core.List<core.int> Function(List<T> x));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m2 is F2<int>);
-      Expect.equals(true, m2 is F2<bool>);
-      Expect.equals(true, confuse(m2) is F2<int>);
-      Expect.equals(true, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// Function(int y, {List<Function> x})
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function(int y, {List<Function> x}) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function(int y, {List<Function> x}));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// List<Function> Function<A>(List<T> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(List<T> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is List<Function> Function<A>(List<T> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-    // The static function has its T always set to int.
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isFalse(f4 is F4<bool>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    Expect.isFalse(confuse(f4) is F4<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        x4 = confuse(f4);
-      });
-      Expect.throws(() {
-        l4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        l4 = confuse(f4);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m4 is F4<int>);
-      Expect.equals(true, m4 is F4<bool>);
-      Expect.equals(true, confuse(m4) is F4<int>);
-      Expect.equals(true, confuse(m4) is F4<bool>);
-    }
-  }
-
-  /// int Function([Function x]) Function()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function([Function x]) Function() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function([Function x]) Function());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(core.List<core.int> x0) Function()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(core.List<core.int> x0) Function() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(core.List<core.int> x0) Function());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int x1, [int x2]) Function()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, [int x2]) Function() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x1, [int x2]) Function());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x0, {List<Function> x}) Function()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x0, {List<Function> x}) Function() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(
-        m8 is Function Function(int x0, {List<Function> x}) Function());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int x) Function()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x) Function() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int x) Function());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int y, [List<Function> x]) Function()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, [List<Function> x]) Function() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(
-        m10 is List<Function> Function(int y, [List<Function> x]) Function());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function(int x1, [List<T> x2]) Function()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, [List<T> x2]) Function() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is List<Function> Function(int x1, [List<T> x2]) Function());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function({Function x}) Function()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function({Function x}) Function() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function({Function x}) Function());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(List<T> x) Function()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(List<T> x) Function() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(List<T> x) Function());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x0, [Function x]) Function()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x0, [Function x]) Function() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int x0, [Function x]) Function());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function([core.List<core.int> x1]) Function()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([core.List<core.int> x1]) Function() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function([core.List<core.int> x1]) Function());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x, [int x2]) Function()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x, [int x2]) Function() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x, [int x2]) Function());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int y, {List<Function> x}) Function()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int y, {List<Function> x}) Function() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int y, {List<Function> x}) Function());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function([int x]) Function()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function([int x]) Function() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function([int x]) Function());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(List<Function> x0) Function()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(List<Function> x0) Function() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(List<Function> x0) Function());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function(int x, [List<T> x2]) Function()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function(int x, [List<T> x2]) Function() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is void Function(int x, [List<T> x2]) Function());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(List<T> x) Function()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(List<T> x) Function() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<Function> Function<A>(List<T> x) Function());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// Function<A>() Function()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    Function<A>() Function() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is Function<A>() Function());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// void Function<A>(A x) Function()
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(A x) Function() l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is void Function<A>(A x) Function());
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U12().runTests();
-  new U12<int>(tIsInt: true).runTests();
-  new U12<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type13_test.dart b/tests/language_2/function_type/function_type13_test.dart
deleted file mode 100644
index 4c47ae72dc3..00000000000
--- a/tests/language_2/function_type/function_type13_test.dart
+++ /dev/null
@@ -1,923 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int x0, [Function x]);
-typedef F1<T> = List<Function> Function([int x]);
-typedef F2<T> = core.List<core.int> Function([List<T> x]);
-typedef F3<T> = Function(core.List<core.int> x);
-typedef F4<T> = List<Function> Function<A>();
-typedef F5<T> = int Function([Function x]) Function(int x);
-typedef F6<T> = int Function(core.List<core.int> x1) Function(int x);
-typedef F7<T> = Function Function(int x2, [int x3]) Function(int x);
-typedef F8<T> = Function Function(int x1, {List<Function> x}) Function(int x);
-typedef F9<T> = List<Function> Function(int x) Function(int x);
-typedef F10<T> = List<Function> Function(int y, [List<Function> x]) Function(
-    int x);
-typedef F11<T> = List<Function> Function(int x2, [List<T> x3]) Function(int x);
-typedef F12<T> = core.List<core.int> Function({Function x}) Function(int x);
-typedef F13<T> = core.List<core.int> Function(List<T> x) Function(int x);
-typedef F14<T> = List<T> Function(int x1, [Function x]) Function(int x);
-typedef F15<T> = List<T> Function([core.List<core.int> x1]) Function(int x);
-typedef F16<T> = Function(int x, [int x1]) Function(int x);
-typedef F17<T> = Function(int y, {List<Function> x}) Function(int x);
-typedef F18<T> = void Function([int x]) Function(int x);
-typedef F19<T> = void Function(List<Function> x1) Function(int x);
-typedef F20<T> = void Function(int x, [List<T> x1]) Function(int x);
-typedef F21<T> = List<Function> Function<A>(List<T> x) Function(int x);
-typedef F22<T> = Function<A>() Function(int x);
-typedef F23<T> = void Function<A>(A x) Function(int x);
-
-int f0(int x0, [Function x]) => null;
-List<Function> f1([int x]) => null;
-core.List<core.int> f2([List<int> x]) => null;
-f3(core.List<core.int> x) => null;
-List<Function> f4<A>() => null;
-int Function([Function x]) f5(int x) => null;
-int Function(core.List<core.int> x0) f6(int x) => null;
-Function Function(int x0, [int x1]) f7(int x) => null;
-Function Function(int x0, {List<Function> x}) f8(int x) => null;
-List<Function> Function(int x) f9(int x) => null;
-List<Function> Function(int y, [List<Function> x]) f10(int x) => null;
-List<Function> Function(int x0, [List<int> x1]) f11(int x) => null;
-core.List<core.int> Function({Function x}) f12(int x) => null;
-core.List<core.int> Function(List<int> x) f13(int x) => null;
-List<int> Function(int x0, [Function x]) f14(int x) => null;
-List<int> Function([core.List<core.int> x0]) f15(int x) => null;
-Function(int x, [int x0]) f16(int x) => null;
-Function(int y, {List<Function> x}) f17(int x) => null;
-void Function([int x]) f18(int x) => null;
-void Function(List<Function> x0) f19(int x) => null;
-void Function(int x, [List<int> x0]) f20(int x) => null;
-List<Function> Function<A>(List<int> x) f21(int x) => null;
-Function<A>() f22(int x) => null;
-void Function<A>(A x) f23(int x) => null;
-
-class U13<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int x0, [Function x]) x0;
-  List<Function> Function([int x]) x1;
-  core.List<core.int> Function([List<T> x]) x2;
-  Function(core.List<core.int> x) x3;
-  List<Function> Function<A>() x4;
-  int Function([Function x]) Function(int x) x5;
-  int Function(core.List<core.int> x1) Function(int x) x6;
-  Function Function(int x2, [int x3]) Function(int x) x7;
-  Function Function(int x1, {List<Function> x}) Function(int x) x8;
-  List<Function> Function(int x) Function(int x) x9;
-  List<Function> Function(int y, [List<Function> x]) Function(int x) x10;
-  List<Function> Function(int x2, [List<T> x3]) Function(int x) x11;
-  core.List<core.int> Function({Function x}) Function(int x) x12;
-  core.List<core.int> Function(List<T> x) Function(int x) x13;
-  List<T> Function(int x1, [Function x]) Function(int x) x14;
-  List<T> Function([core.List<core.int> x1]) Function(int x) x15;
-  Function(int x, [int x1]) Function(int x) x16;
-  Function(int y, {List<Function> x}) Function(int x) x17;
-  void Function([int x]) Function(int x) x18;
-  void Function(List<Function> x1) Function(int x) x19;
-  void Function(int x, [List<T> x1]) Function(int x) x20;
-  List<Function> Function<A>(List<T> x) Function(int x) x21;
-  Function<A>() Function(int x) x22;
-  void Function<A>(A x) Function(int x) x23;
-
-  U13({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int x0, [Function x]) => null;
-  List<Function> m1([int x]) => null;
-  core.List<core.int> m2([List<T> x]) => null;
-  m3(core.List<core.int> x) => null;
-  List<Function> m4<A>() => null;
-  int Function([Function x]) m5(int x) => null;
-  int Function(core.List<core.int> x0) m6(int x) => null;
-  Function Function(int x0, [int x1]) m7(int x) => null;
-  Function Function(int x0, {List<Function> x}) m8(int x) => null;
-  List<Function> Function(int x) m9(int x) => null;
-  List<Function> Function(int y, [List<Function> x]) m10(int x) => null;
-  List<Function> Function(int x0, [List<T> x1]) m11(int x) => null;
-  core.List<core.int> Function({Function x}) m12(int x) => null;
-  core.List<core.int> Function(List<T> x) m13(int x) => null;
-  List<T> Function(int x0, [Function x]) m14(int x) => null;
-  List<T> Function([core.List<core.int> x0]) m15(int x) => null;
-  Function(int x, [int x0]) m16(int x) => null;
-  Function(int y, {List<Function> x}) m17(int x) => null;
-  void Function([int x]) m18(int x) => null;
-  void Function(List<Function> x0) m19(int x) => null;
-  void Function(int x, [List<T> x0]) m20(int x) => null;
-  List<Function> Function<A>(List<T> x) m21(int x) => null;
-  Function<A>() m22(int x) => null;
-  void Function<A>(A x) m23(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int x0, [Function x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int x0, [Function x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int x0, [Function x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function([int x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([int x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function([int x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// core.List<core.int> Function([List<T> x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([List<T> x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is core.List<core.int> Function([List<T> x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m2 is F2<int>);
-      Expect.equals(true, m2 is F2<bool>);
-      Expect.equals(true, confuse(m2) is F2<int>);
-      Expect.equals(true, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// Function(core.List<core.int> x)
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function(core.List<core.int> x) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function(core.List<core.int> x));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// List<Function> Function<A>()
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>() l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is List<Function> Function<A>());
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function([Function x]) Function(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function([Function x]) Function(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function([Function x]) Function(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(core.List<core.int> x1) Function(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(core.List<core.int> x1) Function(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(core.List<core.int> x1) Function(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int x2, [int x3]) Function(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x2, [int x3]) Function(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x2, [int x3]) Function(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x1, {List<Function> x}) Function(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, {List<Function> x}) Function(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(
-        m8 is Function Function(int x1, {List<Function> x}) Function(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int x) Function(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x) Function(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int x) Function(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int y, [List<Function> x]) Function(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, [List<Function> x]) Function(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int y, [List<Function> x])
-        Function(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function(int x2, [List<T> x3]) Function(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x2, [List<T> x3]) Function(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is List<Function> Function(int x2, [List<T> x3]) Function(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function({Function x}) Function(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function({Function x}) Function(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(
-        m12 is core.List<core.int> Function({Function x}) Function(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(List<T> x) Function(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(List<T> x) Function(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(
-        m13 is core.List<core.int> Function(List<T> x) Function(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x1, [Function x]) Function(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, [Function x]) Function(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(
-        m14 is List<T> Function(int x1, [Function x]) Function(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function([core.List<core.int> x1]) Function(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([core.List<core.int> x1]) Function(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(
-        m15 is List<T> Function([core.List<core.int> x1]) Function(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x, [int x1]) Function(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x, [int x1]) Function(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x, [int x1]) Function(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int y, {List<Function> x}) Function(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int y, {List<Function> x}) Function(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int y, {List<Function> x}) Function(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function([int x]) Function(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function([int x]) Function(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function([int x]) Function(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(List<Function> x1) Function(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(List<Function> x1) Function(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(List<Function> x1) Function(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function(int x, [List<T> x1]) Function(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function(int x, [List<T> x1]) Function(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is void Function(int x, [List<T> x1]) Function(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(List<T> x) Function(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(List<T> x) Function(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<Function> Function<A>(List<T> x) Function(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// Function<A>() Function(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    Function<A>() Function(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is Function<A>() Function(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// void Function<A>(A x) Function(int x)
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(A x) Function(int x) l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is void Function<A>(A x) Function(int x));
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U13().runTests();
-  new U13<int>(tIsInt: true).runTests();
-  new U13<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type14_test.dart b/tests/language_2/function_type/function_type14_test.dart
deleted file mode 100644
index 15bc6c9b209..00000000000
--- a/tests/language_2/function_type/function_type14_test.dart
+++ /dev/null
@@ -1,957 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int y, [Function x]);
-typedef F1<T> = List<Function> Function(int x0, [int x]);
-typedef F2<T> = core.List<core.int> Function(int x0, [List<T> x]);
-typedef F3<T> = Function([core.List<core.int> x]);
-typedef F4<T> = List<Function> Function<A>(A x);
-typedef F5<T> = int Function([Function x]) Function<B extends core.int>();
-typedef F6<T> = int Function(core.List<core.int> x1)
-    Function<B extends core.int>();
-typedef F7<T> = Function Function(int x2, [int x3])
-    Function<B extends core.int>();
-typedef F8<T> = Function Function(int x1, {List<Function> x})
-    Function<B extends core.int>();
-typedef F9<T> = List<Function> Function(int x) Function<B extends core.int>();
-typedef F10<T> = List<Function> Function(int y, [List<Function> x])
-    Function<B extends core.int>();
-typedef F11<T> = List<Function> Function(int x2, [List<T> x3])
-    Function<B extends core.int>();
-typedef F12<T> = core.List<core.int> Function({Function x})
-    Function<B extends core.int>();
-typedef F13<T> = core.List<core.int> Function(List<T> x)
-    Function<B extends core.int>();
-typedef F14<T> = List<T> Function(int x1, [Function x])
-    Function<B extends core.int>();
-typedef F15<T> = List<T> Function([core.List<core.int> x1])
-    Function<B extends core.int>();
-typedef F16<T> = Function(int x, [int x1]) Function<B extends core.int>();
-typedef F17<T> = Function(int y, {List<Function> x})
-    Function<B extends core.int>();
-typedef F18<T> = void Function([int x]) Function<B extends core.int>();
-typedef F19<T> = void Function(List<Function> x1)
-    Function<B extends core.int>();
-typedef F20<T> = void Function(int x, [List<T> x1])
-    Function<B extends core.int>();
-typedef F21<T> = List<Function> Function<A>(List<T> x)
-    Function<B extends core.int>();
-typedef F22<T> = Function<A>() Function<B extends core.int>();
-typedef F23<T> = void Function<A>(A x) Function<B extends core.int>();
-
-int f0(int y, [Function x]) => null;
-List<Function> f1(int x0, [int x]) => null;
-core.List<core.int> f2(int x0, [List<int> x]) => null;
-f3([core.List<core.int> x]) => null;
-List<Function> f4<A>(A x) => null;
-int Function([Function x]) f5<B extends core.int>() => null;
-int Function(core.List<core.int> x0) f6<B extends core.int>() => null;
-Function Function(int x0, [int x1]) f7<B extends core.int>() => null;
-Function Function(int x0, {List<Function> x}) f8<B extends core.int>() => null;
-List<Function> Function(int x) f9<B extends core.int>() => null;
-List<Function> Function(int y, [List<Function> x]) f10<B extends core.int>() =>
-    null;
-List<Function> Function(int x0, [List<int> x1]) f11<B extends core.int>() =>
-    null;
-core.List<core.int> Function({Function x}) f12<B extends core.int>() => null;
-core.List<core.int> Function(List<int> x) f13<B extends core.int>() => null;
-List<int> Function(int x0, [Function x]) f14<B extends core.int>() => null;
-List<int> Function([core.List<core.int> x0]) f15<B extends core.int>() => null;
-Function(int x, [int x0]) f16<B extends core.int>() => null;
-Function(int y, {List<Function> x}) f17<B extends core.int>() => null;
-void Function([int x]) f18<B extends core.int>() => null;
-void Function(List<Function> x0) f19<B extends core.int>() => null;
-void Function(int x, [List<int> x0]) f20<B extends core.int>() => null;
-List<Function> Function<A>(List<int> x) f21<B extends core.int>() => null;
-Function<A>() f22<B extends core.int>() => null;
-void Function<A>(A x) f23<B extends core.int>() => null;
-
-class U14<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int y, [Function x]) x0;
-  List<Function> Function(int x0, [int x]) x1;
-  core.List<core.int> Function(int x0, [List<T> x]) x2;
-  Function([core.List<core.int> x]) x3;
-  List<Function> Function<A>(A x) x4;
-  int Function([Function x]) Function<B extends core.int>() x5;
-  int Function(core.List<core.int> x1) Function<B extends core.int>() x6;
-  Function Function(int x2, [int x3]) Function<B extends core.int>() x7;
-  Function Function(int x1, {List<Function> x}) Function<B extends core.int>()
-      x8;
-  List<Function> Function(int x) Function<B extends core.int>() x9;
-  List<Function> Function(int y, [List<Function> x])
-      Function<B extends core.int>() x10;
-  List<Function> Function(int x2, [List<T> x3]) Function<B extends core.int>()
-      x11;
-  core.List<core.int> Function({Function x}) Function<B extends core.int>() x12;
-  core.List<core.int> Function(List<T> x) Function<B extends core.int>() x13;
-  List<T> Function(int x1, [Function x]) Function<B extends core.int>() x14;
-  List<T> Function([core.List<core.int> x1]) Function<B extends core.int>() x15;
-  Function(int x, [int x1]) Function<B extends core.int>() x16;
-  Function(int y, {List<Function> x}) Function<B extends core.int>() x17;
-  void Function([int x]) Function<B extends core.int>() x18;
-  void Function(List<Function> x1) Function<B extends core.int>() x19;
-  void Function(int x, [List<T> x1]) Function<B extends core.int>() x20;
-  List<Function> Function<A>(List<T> x) Function<B extends core.int>() x21;
-  Function<A>() Function<B extends core.int>() x22;
-  void Function<A>(A x) Function<B extends core.int>() x23;
-
-  U14({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int y, [Function x]) => null;
-  List<Function> m1(int x0, [int x]) => null;
-  core.List<core.int> m2(int x0, [List<T> x]) => null;
-  m3([core.List<core.int> x]) => null;
-  List<Function> m4<A>(A x) => null;
-  int Function([Function x]) m5<B extends core.int>() => null;
-  int Function(core.List<core.int> x0) m6<B extends core.int>() => null;
-  Function Function(int x0, [int x1]) m7<B extends core.int>() => null;
-  Function Function(int x0, {List<Function> x}) m8<B extends core.int>() =>
-      null;
-  List<Function> Function(int x) m9<B extends core.int>() => null;
-  List<Function> Function(int y, [List<Function> x])
-      m10<B extends core.int>() => null;
-  List<Function> Function(int x0, [List<T> x1]) m11<B extends core.int>() =>
-      null;
-  core.List<core.int> Function({Function x}) m12<B extends core.int>() => null;
-  core.List<core.int> Function(List<T> x) m13<B extends core.int>() => null;
-  List<T> Function(int x0, [Function x]) m14<B extends core.int>() => null;
-  List<T> Function([core.List<core.int> x0]) m15<B extends core.int>() => null;
-  Function(int x, [int x0]) m16<B extends core.int>() => null;
-  Function(int y, {List<Function> x}) m17<B extends core.int>() => null;
-  void Function([int x]) m18<B extends core.int>() => null;
-  void Function(List<Function> x0) m19<B extends core.int>() => null;
-  void Function(int x, [List<T> x0]) m20<B extends core.int>() => null;
-  List<Function> Function<A>(List<T> x) m21<B extends core.int>() => null;
-  Function<A>() m22<B extends core.int>() => null;
-  void Function<A>(A x) m23<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int y, [Function x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, [Function x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int y, [Function x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(int x0, [int x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x0, [int x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(int x0, [int x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// core.List<core.int> Function(int x0, [List<T> x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x0, [List<T> x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is core.List<core.int> Function(int x0, [List<T> x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m2 is F2<int>);
-      Expect.equals(true, m2 is F2<bool>);
-      Expect.equals(true, confuse(m2) is F2<int>);
-      Expect.equals(true, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// Function([core.List<core.int> x])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function([core.List<core.int> x]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function([core.List<core.int> x]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// List<Function> Function<A>(A x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(A x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is List<Function> Function<A>(A x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function([Function x]) Function<B extends core.int>()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function([Function x]) Function<B extends core.int>() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(
-        m5 is int Function([Function x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(core.List<core.int> x1) Function<B extends core.int>()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(core.List<core.int> x1) Function<B extends core.int>() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(core.List<core.int> x1)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int x2, [int x3]) Function<B extends core.int>()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x2, [int x3]) Function<B extends core.int>() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x2, [int x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x1, {List<Function> x}) Function<B extends core.int>()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, {List<Function> x}) Function<B extends core.int>()
-        l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x1, {List<Function> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int x) Function<B extends core.int>()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x) Function<B extends core.int>() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(
-        m9 is List<Function> Function(int x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int y, [List<Function> x]) Function<B extends core.int>()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, [List<Function> x])
-        Function<B extends core.int>() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int y, [List<Function> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function(int x2, [List<T> x3]) Function<B extends core.int>()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x2, [List<T> x3]) Function<B extends core.int>()
-        l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is List<Function> Function(int x2, [List<T> x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function({Function x}) Function<B extends core.int>()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function({Function x}) Function<B extends core.int>()
-        l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function({Function x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(List<T> x) Function<B extends core.int>()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(List<T> x) Function<B extends core.int>() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(List<T> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x1, [Function x]) Function<B extends core.int>()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, [Function x]) Function<B extends core.int>() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int x1, [Function x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function([core.List<core.int> x1]) Function<B extends core.int>()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([core.List<core.int> x1]) Function<B extends core.int>()
-        l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function([core.List<core.int> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x, [int x1]) Function<B extends core.int>()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x, [int x1]) Function<B extends core.int>() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function(int x, [int x1]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int y, {List<Function> x}) Function<B extends core.int>()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int y, {List<Function> x}) Function<B extends core.int>() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int y, {List<Function> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function([int x]) Function<B extends core.int>()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function([int x]) Function<B extends core.int>() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function([int x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(List<Function> x1) Function<B extends core.int>()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(List<Function> x1) Function<B extends core.int>() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(
-        m19 is void Function(List<Function> x1) Function<B extends core.int>());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function(int x, [List<T> x1]) Function<B extends core.int>()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function(int x, [List<T> x1]) Function<B extends core.int>() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is void Function(int x, [List<T> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(List<T> x) Function<B extends core.int>()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(List<T> x) Function<B extends core.int>() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<Function> Function<A>(List<T> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// Function<A>() Function<B extends core.int>()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    Function<A>() Function<B extends core.int>() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is Function<A>() Function<B extends core.int>());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// void Function<A>(A x) Function<B extends core.int>()
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(A x) Function<B extends core.int>() l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is void Function<A>(A x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U14().runTests();
-  new U14<int>(tIsInt: true).runTests();
-  new U14<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type15_test.dart b/tests/language_2/function_type/function_type15_test.dart
deleted file mode 100644
index 69bcf21332c..00000000000
--- a/tests/language_2/function_type/function_type15_test.dart
+++ /dev/null
@@ -1,978 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(Function x0);
-typedef F1<T> = List<Function> Function(int y, [int x]);
-typedef F2<T> = core.List<core.int> Function(int y, [List<T> x]);
-typedef F3<T> = Function(int x0, [core.List<core.int> x]);
-typedef F4<T> = List<Function> Function<A>(List<A> x);
-typedef F5<T> = int Function([Function x]) Function<B extends core.int>(int x);
-typedef F6<T> = int Function(core.List<core.int> x1)
-    Function<B extends core.int>(int x);
-typedef F7<T> = Function Function(int x2, [int x3])
-    Function<B extends core.int>(int x);
-typedef F8<T> = Function Function(int x1, {List<Function> x})
-    Function<B extends core.int>(int x);
-typedef F9<T> = List<Function> Function(int x) Function<B extends core.int>(
-    int x);
-typedef F10<T> = List<Function> Function(int y, [List<Function> x])
-    Function<B extends core.int>(int x);
-typedef F11<T> = List<Function> Function(int x2, [List<T> x3])
-    Function<B extends core.int>(int x);
-typedef F12<T> = core.List<core.int> Function({Function x})
-    Function<B extends core.int>(int x);
-typedef F13<T> = core.List<core.int> Function(List<T> x)
-    Function<B extends core.int>(int x);
-typedef F14<T> = List<T> Function(int x1, [Function x])
-    Function<B extends core.int>(int x);
-typedef F15<T> = List<T> Function([core.List<core.int> x1])
-    Function<B extends core.int>(int x);
-typedef F16<T> = Function(int x, [int x1]) Function<B extends core.int>(int x);
-typedef F17<T> = Function(int y, {List<Function> x})
-    Function<B extends core.int>(int x);
-typedef F18<T> = void Function([int x]) Function<B extends core.int>(int x);
-typedef F19<T> = void Function(List<Function> x1) Function<B extends core.int>(
-    int x);
-typedef F20<T> = void Function(int x, [List<T> x1])
-    Function<B extends core.int>(int x);
-typedef F21<T> = List<Function> Function<A>(List<T> x)
-    Function<B extends core.int>(int x);
-typedef F22<T> = Function<A>() Function<B extends core.int>(int x);
-typedef F23<T> = void Function<A>(A x) Function<B extends core.int>(int x);
-
-int f0(Function x0) => null;
-List<Function> f1(int y, [int x]) => null;
-core.List<core.int> f2(int y, [List<int> x]) => null;
-f3(int x0, [core.List<core.int> x]) => null;
-List<Function> f4<A>(List<A> x) => null;
-int Function([Function x]) f5<B extends core.int>(int x) => null;
-int Function(core.List<core.int> x0) f6<B extends core.int>(int x) => null;
-Function Function(int x0, [int x1]) f7<B extends core.int>(int x) => null;
-Function Function(int x0, {List<Function> x}) f8<B extends core.int>(int x) =>
-    null;
-List<Function> Function(int x) f9<B extends core.int>(int x) => null;
-List<Function> Function(int y, [List<Function> x]) f10<B extends core.int>(
-        int x) =>
-    null;
-List<Function> Function(int x0, [List<int> x1]) f11<B extends core.int>(
-        int x) =>
-    null;
-core.List<core.int> Function({Function x}) f12<B extends core.int>(int x) =>
-    null;
-core.List<core.int> Function(List<int> x) f13<B extends core.int>(int x) =>
-    null;
-List<int> Function(int x0, [Function x]) f14<B extends core.int>(int x) => null;
-List<int> Function([core.List<core.int> x0]) f15<B extends core.int>(int x) =>
-    null;
-Function(int x, [int x0]) f16<B extends core.int>(int x) => null;
-Function(int y, {List<Function> x}) f17<B extends core.int>(int x) => null;
-void Function([int x]) f18<B extends core.int>(int x) => null;
-void Function(List<Function> x0) f19<B extends core.int>(int x) => null;
-void Function(int x, [List<int> x0]) f20<B extends core.int>(int x) => null;
-List<Function> Function<A>(List<int> x) f21<B extends core.int>(int x) => null;
-Function<A>() f22<B extends core.int>(int x) => null;
-void Function<A>(A x) f23<B extends core.int>(int x) => null;
-
-class U15<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(Function x0) x0;
-  List<Function> Function(int y, [int x]) x1;
-  core.List<core.int> Function(int y, [List<T> x]) x2;
-  Function(int x0, [core.List<core.int> x]) x3;
-  List<Function> Function<A>(List<A> x) x4;
-  int Function([Function x]) Function<B extends core.int>(int x) x5;
-  int Function(core.List<core.int> x1) Function<B extends core.int>(int x) x6;
-  Function Function(int x2, [int x3]) Function<B extends core.int>(int x) x7;
-  Function Function(int x1, {List<Function> x}) Function<B extends core.int>(
-      int x) x8;
-  List<Function> Function(int x) Function<B extends core.int>(int x) x9;
-  List<Function> Function(int y, [List<Function> x])
-      Function<B extends core.int>(int x) x10;
-  List<Function> Function(int x2, [List<T> x3]) Function<B extends core.int>(
-      int x) x11;
-  core.List<core.int> Function({Function x}) Function<B extends core.int>(int x)
-      x12;
-  core.List<core.int> Function(List<T> x) Function<B extends core.int>(int x)
-      x13;
-  List<T> Function(int x1, [Function x]) Function<B extends core.int>(int x)
-      x14;
-  List<T> Function([core.List<core.int> x1]) Function<B extends core.int>(int x)
-      x15;
-  Function(int x, [int x1]) Function<B extends core.int>(int x) x16;
-  Function(int y, {List<Function> x}) Function<B extends core.int>(int x) x17;
-  void Function([int x]) Function<B extends core.int>(int x) x18;
-  void Function(List<Function> x1) Function<B extends core.int>(int x) x19;
-  void Function(int x, [List<T> x1]) Function<B extends core.int>(int x) x20;
-  List<Function> Function<A>(List<T> x) Function<B extends core.int>(int x) x21;
-  Function<A>() Function<B extends core.int>(int x) x22;
-  void Function<A>(A x) Function<B extends core.int>(int x) x23;
-
-  U15({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(Function x0) => null;
-  List<Function> m1(int y, [int x]) => null;
-  core.List<core.int> m2(int y, [List<T> x]) => null;
-  m3(int x0, [core.List<core.int> x]) => null;
-  List<Function> m4<A>(List<A> x) => null;
-  int Function([Function x]) m5<B extends core.int>(int x) => null;
-  int Function(core.List<core.int> x0) m6<B extends core.int>(int x) => null;
-  Function Function(int x0, [int x1]) m7<B extends core.int>(int x) => null;
-  Function Function(int x0, {List<Function> x}) m8<B extends core.int>(int x) =>
-      null;
-  List<Function> Function(int x) m9<B extends core.int>(int x) => null;
-  List<Function> Function(int y, [List<Function> x]) m10<B extends core.int>(
-          int x) =>
-      null;
-  List<Function> Function(int x0, [List<T> x1]) m11<B extends core.int>(
-          int x) =>
-      null;
-  core.List<core.int> Function({Function x}) m12<B extends core.int>(int x) =>
-      null;
-  core.List<core.int> Function(List<T> x) m13<B extends core.int>(int x) =>
-      null;
-  List<T> Function(int x0, [Function x]) m14<B extends core.int>(int x) => null;
-  List<T> Function([core.List<core.int> x0]) m15<B extends core.int>(int x) =>
-      null;
-  Function(int x, [int x0]) m16<B extends core.int>(int x) => null;
-  Function(int y, {List<Function> x}) m17<B extends core.int>(int x) => null;
-  void Function([int x]) m18<B extends core.int>(int x) => null;
-  void Function(List<Function> x0) m19<B extends core.int>(int x) => null;
-  void Function(int x, [List<T> x0]) m20<B extends core.int>(int x) => null;
-  List<Function> Function<A>(List<T> x) m21<B extends core.int>(int x) => null;
-  Function<A>() m22<B extends core.int>(int x) => null;
-  void Function<A>(A x) m23<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(Function x0)
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(Function x0) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(Function x0));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(int y, [int x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, [int x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(int y, [int x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// core.List<core.int> Function(int y, [List<T> x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, [List<T> x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is core.List<core.int> Function(int y, [List<T> x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m2 is F2<int>);
-      Expect.equals(true, m2 is F2<bool>);
-      Expect.equals(true, confuse(m2) is F2<int>);
-      Expect.equals(true, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// Function(int x0, [core.List<core.int> x])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function(int x0, [core.List<core.int> x]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function(int x0, [core.List<core.int> x]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// List<Function> Function<A>(List<A> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(List<A> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is List<Function> Function<A>(List<A> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function([Function x]) Function<B extends core.int>(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function([Function x]) Function<B extends core.int>(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(
-        m5 is int Function([Function x]) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(core.List<core.int> x1) Function<B extends core.int>(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(core.List<core.int> x1) Function<B extends core.int>(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(core.List<core.int> x1)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int x2, [int x3]) Function<B extends core.int>(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x2, [int x3]) Function<B extends core.int>(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x2, [int x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x1, {List<Function> x}) Function<B extends core.int>(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, {List<Function> x}) Function<B extends core.int>(
-        int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x1, {List<Function> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int x) Function<B extends core.int>(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x) Function<B extends core.int>(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int y, [List<Function> x]) Function<B extends core.int>(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, [List<Function> x])
-        Function<B extends core.int>(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int y, [List<Function> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function(int x2, [List<T> x3]) Function<B extends core.int>(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x2, [List<T> x3]) Function<B extends core.int>(
-        int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is List<Function> Function(int x2, [List<T> x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function({Function x}) Function<B extends core.int>(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function({Function x}) Function<B extends core.int>(
-        int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function({Function x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(List<T> x) Function<B extends core.int>(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(List<T> x) Function<B extends core.int>(int x)
-        l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(List<T> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x1, [Function x]) Function<B extends core.int>(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, [Function x]) Function<B extends core.int>(int x)
-        l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int x1, [Function x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function([core.List<core.int> x1]) Function<B extends core.int>(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([core.List<core.int> x1]) Function<B extends core.int>(
-        int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function([core.List<core.int> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x, [int x1]) Function<B extends core.int>(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x, [int x1]) Function<B extends core.int>(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function(int x, [int x1]) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int y, {List<Function> x}) Function<B extends core.int>(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int y, {List<Function> x}) Function<B extends core.int>(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int y, {List<Function> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function([int x]) Function<B extends core.int>(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function([int x]) Function<B extends core.int>(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(
-        m18 is void Function([int x]) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(List<Function> x1) Function<B extends core.int>(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(List<Function> x1) Function<B extends core.int>(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(List<Function> x1)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function(int x, [List<T> x1]) Function<B extends core.int>(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function(int x, [List<T> x1]) Function<B extends core.int>(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is void Function(int x, [List<T> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(List<T> x) Function<B extends core.int>(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(List<T> x) Function<B extends core.int>(int x)
-        l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<Function> Function<A>(List<T> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// Function<A>() Function<B extends core.int>(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    Function<A>() Function<B extends core.int>(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is Function<A>() Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// void Function<A>(A x) Function<B extends core.int>(int x)
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(A x) Function<B extends core.int>(int x) l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(
-        m23 is void Function<A>(A x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U15().runTests();
-  new U15<int>(tIsInt: true).runTests();
-  new U15<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type16_test.dart b/tests/language_2/function_type/function_type16_test.dart
deleted file mode 100644
index e64fc261445..00000000000
--- a/tests/language_2/function_type/function_type16_test.dart
+++ /dev/null
@@ -1,894 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function([Function x1]);
-typedef F1<T> = List<Function> Function(int x0);
-typedef F2<T> = core.List<core.int> Function(List<T> x0);
-typedef F3<T> = Function(int y, [core.List<core.int> x]);
-typedef F4<T> = core.List<core.int> Function<A>(int x);
-typedef F5<T> = int Function(int x0, [Function x]) Function();
-typedef F6<T> = int Function([core.List<core.int> x1]) Function();
-typedef F7<T> = Function Function(int x, [int x2]) Function();
-typedef F8<T> = Function Function(int y, {List<Function> x}) Function();
-typedef F9<T> = List<Function> Function([int x]) Function();
-typedef F10<T> = List<Function> Function(List<Function> x0) Function();
-typedef F11<T> = List<Function> Function(int x, [List<T> x2]) Function();
-typedef F12<T> = core.List<core.int> Function(int x0, {Function x}) Function();
-typedef F13<T> = core.List<core.int> Function([List<T> x]) Function();
-typedef F14<T> = List<T> Function(int y, [Function x]) Function();
-typedef F15<T> = List<T> Function(int x1, [core.List<core.int> x2]) Function();
-typedef F16<T> = Function({int x}) Function();
-typedef F17<T> = Function(core.List<core.int> x) Function();
-typedef F18<T> = void Function(int x0, [int x]) Function();
-typedef F19<T> = void Function([List<Function> x1]) Function();
-typedef F20<T> = void Function({List<T> x}) Function();
-typedef F21<T> = List<Function> Function<A>() Function();
-typedef F22<T> = Function<A>(A x) Function();
-typedef F23<T> = void Function<A>(List<A> x) Function();
-
-int f0([Function x0]) => null;
-List<Function> f1(int x0) => null;
-core.List<core.int> f2(List<int> x0) => null;
-f3(int y, [core.List<core.int> x]) => null;
-core.List<core.int> f4<A>(int x) => null;
-int Function(int x0, [Function x]) f5() => null;
-int Function([core.List<core.int> x0]) f6() => null;
-Function Function(int x, [int x0]) f7() => null;
-Function Function(int y, {List<Function> x}) f8() => null;
-List<Function> Function([int x]) f9() => null;
-List<Function> Function(List<Function> x0) f10() => null;
-List<Function> Function(int x, [List<int> x0]) f11() => null;
-core.List<core.int> Function(int x0, {Function x}) f12() => null;
-core.List<core.int> Function([List<int> x]) f13() => null;
-List<int> Function(int y, [Function x]) f14() => null;
-List<int> Function(int x0, [core.List<core.int> x1]) f15() => null;
-Function({int x}) f16() => null;
-Function(core.List<core.int> x) f17() => null;
-void Function(int x0, [int x]) f18() => null;
-void Function([List<Function> x0]) f19() => null;
-void Function({List<int> x}) f20() => null;
-List<Function> Function<A>() f21() => null;
-Function<A>(A x) f22() => null;
-void Function<A>(List<A> x) f23() => null;
-
-class U16<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function([Function x1]) x0;
-  List<Function> Function(int x0) x1;
-  core.List<core.int> Function(List<T> x0) x2;
-  Function(int y, [core.List<core.int> x]) x3;
-  core.List<core.int> Function<A>(int x) x4;
-  int Function(int x0, [Function x]) Function() x5;
-  int Function([core.List<core.int> x1]) Function() x6;
-  Function Function(int x, [int x2]) Function() x7;
-  Function Function(int y, {List<Function> x}) Function() x8;
-  List<Function> Function([int x]) Function() x9;
-  List<Function> Function(List<Function> x0) Function() x10;
-  List<Function> Function(int x, [List<T> x2]) Function() x11;
-  core.List<core.int> Function(int x0, {Function x}) Function() x12;
-  core.List<core.int> Function([List<T> x]) Function() x13;
-  List<T> Function(int y, [Function x]) Function() x14;
-  List<T> Function(int x1, [core.List<core.int> x2]) Function() x15;
-  Function({int x}) Function() x16;
-  Function(core.List<core.int> x) Function() x17;
-  void Function(int x0, [int x]) Function() x18;
-  void Function([List<Function> x1]) Function() x19;
-  void Function({List<T> x}) Function() x20;
-  List<Function> Function<A>() Function() x21;
-  Function<A>(A x) Function() x22;
-  void Function<A>(List<A> x) Function() x23;
-
-  U16({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0([Function x0]) => null;
-  List<Function> m1(int x0) => null;
-  core.List<core.int> m2(List<T> x0) => null;
-  m3(int y, [core.List<core.int> x]) => null;
-  core.List<core.int> m4<A>(int x) => null;
-  int Function(int x0, [Function x]) m5() => null;
-  int Function([core.List<core.int> x0]) m6() => null;
-  Function Function(int x, [int x0]) m7() => null;
-  Function Function(int y, {List<Function> x}) m8() => null;
-  List<Function> Function([int x]) m9() => null;
-  List<Function> Function(List<Function> x0) m10() => null;
-  List<Function> Function(int x, [List<T> x0]) m11() => null;
-  core.List<core.int> Function(int x0, {Function x}) m12() => null;
-  core.List<core.int> Function([List<T> x]) m13() => null;
-  List<T> Function(int y, [Function x]) m14() => null;
-  List<T> Function(int x0, [core.List<core.int> x1]) m15() => null;
-  Function({int x}) m16() => null;
-  Function(core.List<core.int> x) m17() => null;
-  void Function(int x0, [int x]) m18() => null;
-  void Function([List<Function> x0]) m19() => null;
-  void Function({List<T> x}) m20() => null;
-  List<Function> Function<A>() m21() => null;
-  Function<A>(A x) m22() => null;
-  void Function<A>(List<A> x) m23() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function([Function x1])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function([Function x1]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function([Function x1]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(int x0)
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x0) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(int x0));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// core.List<core.int> Function(List<T> x0)
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(List<T> x0) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is core.List<core.int> Function(List<T> x0));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m2 is F2<int>);
-      Expect.equals(true, m2 is F2<bool>);
-      Expect.equals(true, confuse(m2) is F2<int>);
-      Expect.equals(true, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// Function(int y, [core.List<core.int> x])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function(int y, [core.List<core.int> x]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function(int y, [core.List<core.int> x]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// core.List<core.int> Function<A>(int x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(int x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is core.List<core.int> Function<A>(int x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x0, [Function x]) Function()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x0, [Function x]) Function() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x0, [Function x]) Function());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function([core.List<core.int> x1]) Function()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function([core.List<core.int> x1]) Function() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function([core.List<core.int> x1]) Function());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int x, [int x2]) Function()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x, [int x2]) Function() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x, [int x2]) Function());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int y, {List<Function> x}) Function()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, {List<Function> x}) Function() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(
-        m8 is Function Function(int y, {List<Function> x}) Function());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function([int x]) Function()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([int x]) Function() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function([int x]) Function());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(List<Function> x0) Function()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(List<Function> x0) Function() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(List<Function> x0) Function());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function(int x, [List<T> x2]) Function()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x, [List<T> x2]) Function() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is List<Function> Function(int x, [List<T> x2]) Function());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int x0, {Function x}) Function()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x0, {Function x}) Function() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(
-        m12 is core.List<core.int> Function(int x0, {Function x}) Function());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function([List<T> x]) Function()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([List<T> x]) Function() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function([List<T> x]) Function());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, [Function x]) Function()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, [Function x]) Function() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int y, [Function x]) Function());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x1, [core.List<core.int> x2]) Function()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, [core.List<core.int> x2]) Function() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(
-        m15 is List<T> Function(int x1, [core.List<core.int> x2]) Function());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function({int x}) Function()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function({int x}) Function() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function({int x}) Function());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(core.List<core.int> x) Function()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(core.List<core.int> x) Function() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(core.List<core.int> x) Function());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int x0, [int x]) Function()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x0, [int x]) Function() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x0, [int x]) Function());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function([List<Function> x1]) Function()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function([List<Function> x1]) Function() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function([List<Function> x1]) Function());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function({List<T> x}) Function()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function({List<T> x}) Function() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is void Function({List<T> x}) Function());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>() Function()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>() Function() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<Function> Function<A>() Function());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// Function<A>(A x) Function()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    Function<A>(A x) Function() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is Function<A>(A x) Function());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// void Function<A>(List<A> x) Function()
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(List<A> x) Function() l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is void Function<A>(List<A> x) Function());
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U16().runTests();
-  new U16<int>(tIsInt: true).runTests();
-  new U16<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type17_test.dart b/tests/language_2/function_type/function_type17_test.dart
deleted file mode 100644
index 8fdee380d72..00000000000
--- a/tests/language_2/function_type/function_type17_test.dart
+++ /dev/null
@@ -1,898 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int x1, [Function x2]);
-typedef F1<T> = List<Function> Function([int x1]);
-typedef F2<T> = core.List<core.int> Function([List<T> x1]);
-typedef F3<T> = Function(core.List<core.int> x0);
-typedef F4<T> = core.List<core.int> Function<A>(Function x);
-typedef F5<T> = int Function(int x1, [Function x]) Function(int x);
-typedef F6<T> = int Function([core.List<core.int> x1]) Function(int x);
-typedef F7<T> = Function Function(int x, [int x1]) Function(int x);
-typedef F8<T> = Function Function(int y, {List<Function> x}) Function(int x);
-typedef F9<T> = List<Function> Function([int x]) Function(int x);
-typedef F10<T> = List<Function> Function(List<Function> x1) Function(int x);
-typedef F11<T> = List<Function> Function(int x, [List<T> x1]) Function(int x);
-typedef F12<T> = core.List<core.int> Function(int x1, {Function x}) Function(
-    int x);
-typedef F13<T> = core.List<core.int> Function([List<T> x]) Function(int x);
-typedef F14<T> = List<T> Function(int y, [Function x]) Function(int x);
-typedef F15<T> = List<T> Function(int x2, [core.List<core.int> x3]) Function(
-    int x);
-typedef F16<T> = Function({int x}) Function(int x);
-typedef F17<T> = Function(core.List<core.int> x) Function(int x);
-typedef F18<T> = void Function(int x1, [int x]) Function(int x);
-typedef F19<T> = void Function([List<Function> x1]) Function(int x);
-typedef F20<T> = void Function({List<T> x}) Function(int x);
-typedef F21<T> = List<Function> Function<A>() Function(int x);
-typedef F22<T> = Function<A>(A x) Function(int x);
-typedef F23<T> = void Function<A>(List<A> x) Function(int x);
-
-int f0(int x0, [Function x1]) => null;
-List<Function> f1([int x0]) => null;
-core.List<core.int> f2([List<int> x0]) => null;
-f3(core.List<core.int> x0) => null;
-core.List<core.int> f4<A>(Function x) => null;
-int Function(int x0, [Function x]) f5(int x) => null;
-int Function([core.List<core.int> x0]) f6(int x) => null;
-Function Function(int x, [int x0]) f7(int x) => null;
-Function Function(int y, {List<Function> x}) f8(int x) => null;
-List<Function> Function([int x]) f9(int x) => null;
-List<Function> Function(List<Function> x0) f10(int x) => null;
-List<Function> Function(int x, [List<int> x0]) f11(int x) => null;
-core.List<core.int> Function(int x0, {Function x}) f12(int x) => null;
-core.List<core.int> Function([List<int> x]) f13(int x) => null;
-List<int> Function(int y, [Function x]) f14(int x) => null;
-List<int> Function(int x0, [core.List<core.int> x1]) f15(int x) => null;
-Function({int x}) f16(int x) => null;
-Function(core.List<core.int> x) f17(int x) => null;
-void Function(int x0, [int x]) f18(int x) => null;
-void Function([List<Function> x0]) f19(int x) => null;
-void Function({List<int> x}) f20(int x) => null;
-List<Function> Function<A>() f21(int x) => null;
-Function<A>(A x) f22(int x) => null;
-void Function<A>(List<A> x) f23(int x) => null;
-
-class U17<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int x1, [Function x2]) x0;
-  List<Function> Function([int x1]) x1;
-  core.List<core.int> Function([List<T> x1]) x2;
-  Function(core.List<core.int> x0) x3;
-  core.List<core.int> Function<A>(Function x) x4;
-  int Function(int x1, [Function x]) Function(int x) x5;
-  int Function([core.List<core.int> x1]) Function(int x) x6;
-  Function Function(int x, [int x1]) Function(int x) x7;
-  Function Function(int y, {List<Function> x}) Function(int x) x8;
-  List<Function> Function([int x]) Function(int x) x9;
-  List<Function> Function(List<Function> x1) Function(int x) x10;
-  List<Function> Function(int x, [List<T> x1]) Function(int x) x11;
-  core.List<core.int> Function(int x1, {Function x}) Function(int x) x12;
-  core.List<core.int> Function([List<T> x]) Function(int x) x13;
-  List<T> Function(int y, [Function x]) Function(int x) x14;
-  List<T> Function(int x2, [core.List<core.int> x3]) Function(int x) x15;
-  Function({int x}) Function(int x) x16;
-  Function(core.List<core.int> x) Function(int x) x17;
-  void Function(int x1, [int x]) Function(int x) x18;
-  void Function([List<Function> x1]) Function(int x) x19;
-  void Function({List<T> x}) Function(int x) x20;
-  List<Function> Function<A>() Function(int x) x21;
-  Function<A>(A x) Function(int x) x22;
-  void Function<A>(List<A> x) Function(int x) x23;
-
-  U17({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int x0, [Function x1]) => null;
-  List<Function> m1([int x0]) => null;
-  core.List<core.int> m2([List<T> x0]) => null;
-  m3(core.List<core.int> x0) => null;
-  core.List<core.int> m4<A>(Function x) => null;
-  int Function(int x0, [Function x]) m5(int x) => null;
-  int Function([core.List<core.int> x0]) m6(int x) => null;
-  Function Function(int x, [int x0]) m7(int x) => null;
-  Function Function(int y, {List<Function> x}) m8(int x) => null;
-  List<Function> Function([int x]) m9(int x) => null;
-  List<Function> Function(List<Function> x0) m10(int x) => null;
-  List<Function> Function(int x, [List<T> x0]) m11(int x) => null;
-  core.List<core.int> Function(int x0, {Function x}) m12(int x) => null;
-  core.List<core.int> Function([List<T> x]) m13(int x) => null;
-  List<T> Function(int y, [Function x]) m14(int x) => null;
-  List<T> Function(int x0, [core.List<core.int> x1]) m15(int x) => null;
-  Function({int x}) m16(int x) => null;
-  Function(core.List<core.int> x) m17(int x) => null;
-  void Function(int x0, [int x]) m18(int x) => null;
-  void Function([List<Function> x0]) m19(int x) => null;
-  void Function({List<T> x}) m20(int x) => null;
-  List<Function> Function<A>() m21(int x) => null;
-  Function<A>(A x) m22(int x) => null;
-  void Function<A>(List<A> x) m23(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int x1, [Function x2])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, [Function x2]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int x1, [Function x2]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function([int x1])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([int x1]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function([int x1]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// core.List<core.int> Function([List<T> x1])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([List<T> x1]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is core.List<core.int> Function([List<T> x1]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m2 is F2<int>);
-      Expect.equals(true, m2 is F2<bool>);
-      Expect.equals(true, confuse(m2) is F2<int>);
-      Expect.equals(true, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// Function(core.List<core.int> x0)
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function(core.List<core.int> x0) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function(core.List<core.int> x0));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// core.List<core.int> Function<A>(Function x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(Function x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is core.List<core.int> Function<A>(Function x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x1, [Function x]) Function(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, [Function x]) Function(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x1, [Function x]) Function(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function([core.List<core.int> x1]) Function(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function([core.List<core.int> x1]) Function(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function([core.List<core.int> x1]) Function(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int x, [int x1]) Function(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x, [int x1]) Function(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x, [int x1]) Function(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int y, {List<Function> x}) Function(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, {List<Function> x}) Function(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(
-        m8 is Function Function(int y, {List<Function> x}) Function(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function([int x]) Function(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([int x]) Function(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function([int x]) Function(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(List<Function> x1) Function(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(List<Function> x1) Function(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(
-        m10 is List<Function> Function(List<Function> x1) Function(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function(int x, [List<T> x1]) Function(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x, [List<T> x1]) Function(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is List<Function> Function(int x, [List<T> x1]) Function(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int x1, {Function x}) Function(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, {Function x}) Function(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x1, {Function x})
-        Function(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function([List<T> x]) Function(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([List<T> x]) Function(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(
-        m13 is core.List<core.int> Function([List<T> x]) Function(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, [Function x]) Function(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, [Function x]) Function(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int y, [Function x]) Function(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x2, [core.List<core.int> x3]) Function(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x2, [core.List<core.int> x3]) Function(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x2, [core.List<core.int> x3])
-        Function(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function({int x}) Function(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function({int x}) Function(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function({int x}) Function(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(core.List<core.int> x) Function(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(core.List<core.int> x) Function(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(core.List<core.int> x) Function(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int x1, [int x]) Function(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, [int x]) Function(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x1, [int x]) Function(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function([List<Function> x1]) Function(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function([List<Function> x1]) Function(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function([List<Function> x1]) Function(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function({List<T> x}) Function(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function({List<T> x}) Function(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is void Function({List<T> x}) Function(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>() Function(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>() Function(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<Function> Function<A>() Function(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// Function<A>(A x) Function(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    Function<A>(A x) Function(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is Function<A>(A x) Function(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// void Function<A>(List<A> x) Function(int x)
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(List<A> x) Function(int x) l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is void Function<A>(List<A> x) Function(int x));
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U17().runTests();
-  new U17<int>(tIsInt: true).runTests();
-  new U17<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type18_test.dart b/tests/language_2/function_type/function_type18_test.dart
deleted file mode 100644
index c1c9bcb0ea6..00000000000
--- a/tests/language_2/function_type/function_type18_test.dart
+++ /dev/null
@@ -1,934 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int x, [Function x2]);
-typedef F1<T> = List<Function> Function(int x1, [int x2]);
-typedef F2<T> = core.List<core.int> Function(int x1, [List<T> x2]);
-typedef F3<T> = Function([core.List<core.int> x1]);
-typedef F4<T> = core.List<core.int> Function<A>(List<Function> x);
-typedef F5<T> = int Function(int x1, [Function x])
-    Function<B extends core.int>();
-typedef F6<T> = int Function([core.List<core.int> x1])
-    Function<B extends core.int>();
-typedef F7<T> = Function Function(int x, [int x1])
-    Function<B extends core.int>();
-typedef F8<T> = Function Function(int y, {List<Function> x})
-    Function<B extends core.int>();
-typedef F9<T> = List<Function> Function([int x]) Function<B extends core.int>();
-typedef F10<T> = List<Function> Function(List<Function> x1)
-    Function<B extends core.int>();
-typedef F11<T> = List<Function> Function(int x, [List<T> x1])
-    Function<B extends core.int>();
-typedef F12<T> = core.List<core.int> Function(int x1, {Function x})
-    Function<B extends core.int>();
-typedef F13<T> = core.List<core.int> Function([List<T> x])
-    Function<B extends core.int>();
-typedef F14<T> = List<T> Function(int y, [Function x])
-    Function<B extends core.int>();
-typedef F15<T> = List<T> Function(int x2, [core.List<core.int> x3])
-    Function<B extends core.int>();
-typedef F16<T> = Function({int x}) Function<B extends core.int>();
-typedef F17<T> = Function(core.List<core.int> x) Function<B extends core.int>();
-typedef F18<T> = void Function(int x1, [int x]) Function<B extends core.int>();
-typedef F19<T> = void Function([List<Function> x1])
-    Function<B extends core.int>();
-typedef F20<T> = void Function({List<T> x}) Function<B extends core.int>();
-typedef F21<T> = List<Function> Function<A>() Function<B extends core.int>();
-typedef F22<T> = Function<A>(A x) Function<B extends core.int>();
-typedef F23<T> = void Function<A>(List<A> x) Function<B extends core.int>();
-
-int f0(int x, [Function x0]) => null;
-List<Function> f1(int x0, [int x1]) => null;
-core.List<core.int> f2(int x0, [List<int> x1]) => null;
-f3([core.List<core.int> x0]) => null;
-core.List<core.int> f4<A>(List<Function> x) => null;
-int Function(int x0, [Function x]) f5<B extends core.int>() => null;
-int Function([core.List<core.int> x0]) f6<B extends core.int>() => null;
-Function Function(int x, [int x0]) f7<B extends core.int>() => null;
-Function Function(int y, {List<Function> x}) f8<B extends core.int>() => null;
-List<Function> Function([int x]) f9<B extends core.int>() => null;
-List<Function> Function(List<Function> x0) f10<B extends core.int>() => null;
-List<Function> Function(int x, [List<int> x0]) f11<B extends core.int>() =>
-    null;
-core.List<core.int> Function(int x0, {Function x}) f12<B extends core.int>() =>
-    null;
-core.List<core.int> Function([List<int> x]) f13<B extends core.int>() => null;
-List<int> Function(int y, [Function x]) f14<B extends core.int>() => null;
-List<int> Function(int x0, [core.List<core.int> x1])
-    f15<B extends core.int>() => null;
-Function({int x}) f16<B extends core.int>() => null;
-Function(core.List<core.int> x) f17<B extends core.int>() => null;
-void Function(int x0, [int x]) f18<B extends core.int>() => null;
-void Function([List<Function> x0]) f19<B extends core.int>() => null;
-void Function({List<int> x}) f20<B extends core.int>() => null;
-List<Function> Function<A>() f21<B extends core.int>() => null;
-Function<A>(A x) f22<B extends core.int>() => null;
-void Function<A>(List<A> x) f23<B extends core.int>() => null;
-
-class U18<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int x, [Function x2]) x0;
-  List<Function> Function(int x1, [int x2]) x1;
-  core.List<core.int> Function(int x1, [List<T> x2]) x2;
-  Function([core.List<core.int> x1]) x3;
-  core.List<core.int> Function<A>(List<Function> x) x4;
-  int Function(int x1, [Function x]) Function<B extends core.int>() x5;
-  int Function([core.List<core.int> x1]) Function<B extends core.int>() x6;
-  Function Function(int x, [int x1]) Function<B extends core.int>() x7;
-  Function Function(int y, {List<Function> x}) Function<B extends core.int>()
-      x8;
-  List<Function> Function([int x]) Function<B extends core.int>() x9;
-  List<Function> Function(List<Function> x1) Function<B extends core.int>() x10;
-  List<Function> Function(int x, [List<T> x1]) Function<B extends core.int>()
-      x11;
-  core.List<core.int> Function(int x1, {Function x})
-      Function<B extends core.int>() x12;
-  core.List<core.int> Function([List<T> x]) Function<B extends core.int>() x13;
-  List<T> Function(int y, [Function x]) Function<B extends core.int>() x14;
-  List<T> Function(int x2, [core.List<core.int> x3])
-      Function<B extends core.int>() x15;
-  Function({int x}) Function<B extends core.int>() x16;
-  Function(core.List<core.int> x) Function<B extends core.int>() x17;
-  void Function(int x1, [int x]) Function<B extends core.int>() x18;
-  void Function([List<Function> x1]) Function<B extends core.int>() x19;
-  void Function({List<T> x}) Function<B extends core.int>() x20;
-  List<Function> Function<A>() Function<B extends core.int>() x21;
-  Function<A>(A x) Function<B extends core.int>() x22;
-  void Function<A>(List<A> x) Function<B extends core.int>() x23;
-
-  U18({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int x, [Function x0]) => null;
-  List<Function> m1(int x0, [int x1]) => null;
-  core.List<core.int> m2(int x0, [List<T> x1]) => null;
-  m3([core.List<core.int> x0]) => null;
-  core.List<core.int> m4<A>(List<Function> x) => null;
-  int Function(int x0, [Function x]) m5<B extends core.int>() => null;
-  int Function([core.List<core.int> x0]) m6<B extends core.int>() => null;
-  Function Function(int x, [int x0]) m7<B extends core.int>() => null;
-  Function Function(int y, {List<Function> x}) m8<B extends core.int>() => null;
-  List<Function> Function([int x]) m9<B extends core.int>() => null;
-  List<Function> Function(List<Function> x0) m10<B extends core.int>() => null;
-  List<Function> Function(int x, [List<T> x0]) m11<B extends core.int>() =>
-      null;
-  core.List<core.int> Function(int x0, {Function x})
-      m12<B extends core.int>() => null;
-  core.List<core.int> Function([List<T> x]) m13<B extends core.int>() => null;
-  List<T> Function(int y, [Function x]) m14<B extends core.int>() => null;
-  List<T> Function(int x0, [core.List<core.int> x1])
-      m15<B extends core.int>() => null;
-  Function({int x}) m16<B extends core.int>() => null;
-  Function(core.List<core.int> x) m17<B extends core.int>() => null;
-  void Function(int x0, [int x]) m18<B extends core.int>() => null;
-  void Function([List<Function> x0]) m19<B extends core.int>() => null;
-  void Function({List<T> x}) m20<B extends core.int>() => null;
-  List<Function> Function<A>() m21<B extends core.int>() => null;
-  Function<A>(A x) m22<B extends core.int>() => null;
-  void Function<A>(List<A> x) m23<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int x, [Function x2])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int x, [Function x2]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int x, [Function x2]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(int x1, [int x2])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, [int x2]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(int x1, [int x2]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// core.List<core.int> Function(int x1, [List<T> x2])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, [List<T> x2]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is core.List<core.int> Function(int x1, [List<T> x2]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m2 is F2<int>);
-      Expect.equals(true, m2 is F2<bool>);
-      Expect.equals(true, confuse(m2) is F2<int>);
-      Expect.equals(true, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// Function([core.List<core.int> x1])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function([core.List<core.int> x1]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function([core.List<core.int> x1]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// core.List<core.int> Function<A>(List<Function> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(List<Function> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is core.List<core.int> Function<A>(List<Function> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x1, [Function x]) Function<B extends core.int>()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, [Function x]) Function<B extends core.int>() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x1, [Function x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function([core.List<core.int> x1]) Function<B extends core.int>()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function([core.List<core.int> x1]) Function<B extends core.int>() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function([core.List<core.int> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int x, [int x1]) Function<B extends core.int>()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x, [int x1]) Function<B extends core.int>() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x, [int x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int y, {List<Function> x}) Function<B extends core.int>()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, {List<Function> x}) Function<B extends core.int>()
-        l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int y, {List<Function> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function([int x]) Function<B extends core.int>()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([int x]) Function<B extends core.int>() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(
-        m9 is List<Function> Function([int x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(List<Function> x1) Function<B extends core.int>()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(List<Function> x1) Function<B extends core.int>()
-        l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(List<Function> x1)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function(int x, [List<T> x1]) Function<B extends core.int>()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x, [List<T> x1]) Function<B extends core.int>()
-        l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is List<Function> Function(int x, [List<T> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int x1, {Function x}) Function<B extends core.int>()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, {Function x})
-        Function<B extends core.int>() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x1, {Function x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function([List<T> x]) Function<B extends core.int>()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([List<T> x]) Function<B extends core.int>()
-        l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function([List<T> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, [Function x]) Function<B extends core.int>()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, [Function x]) Function<B extends core.int>() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int y, [Function x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x2, [core.List<core.int> x3]) Function<B extends core.int>()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x2, [core.List<core.int> x3])
-        Function<B extends core.int>() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x2, [core.List<core.int> x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function({int x}) Function<B extends core.int>()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function({int x}) Function<B extends core.int>() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function({int x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(core.List<core.int> x) Function<B extends core.int>()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(core.List<core.int> x) Function<B extends core.int>() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(
-        m17 is Function(core.List<core.int> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int x1, [int x]) Function<B extends core.int>()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, [int x]) Function<B extends core.int>() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(
-        m18 is void Function(int x1, [int x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function([List<Function> x1]) Function<B extends core.int>()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function([List<Function> x1]) Function<B extends core.int>() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function([List<Function> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function({List<T> x}) Function<B extends core.int>()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function({List<T> x}) Function<B extends core.int>() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(
-        m20 is void Function({List<T> x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>() Function<B extends core.int>()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>() Function<B extends core.int>() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(
-        m21 is List<Function> Function<A>() Function<B extends core.int>());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// Function<A>(A x) Function<B extends core.int>()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    Function<A>(A x) Function<B extends core.int>() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is Function<A>(A x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// void Function<A>(List<A> x) Function<B extends core.int>()
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(List<A> x) Function<B extends core.int>() l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(
-        m23 is void Function<A>(List<A> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U18().runTests();
-  new U18<int>(tIsInt: true).runTests();
-  new U18<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type19_test.dart b/tests/language_2/function_type/function_type19_test.dart
deleted file mode 100644
index 546f1abe88d..00000000000
--- a/tests/language_2/function_type/function_type19_test.dart
+++ /dev/null
@@ -1,953 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function({Function x});
-typedef F1<T> = List<Function> Function(int x, [int x2]);
-typedef F2<T> = core.List<core.int> Function(int x, [List<T> x2]);
-typedef F3<T> = Function(int x1, [core.List<core.int> x2]);
-typedef F4<T> = core.List<core.int> Function<A>(core.List<core.int> x);
-typedef F5<T> = int Function(int x1, [Function x]) Function<B extends core.int>(
-    int x);
-typedef F6<T> = int Function([core.List<core.int> x1])
-    Function<B extends core.int>(int x);
-typedef F7<T> = Function Function(int x, [int x1]) Function<B extends core.int>(
-    int x);
-typedef F8<T> = Function Function(int y, {List<Function> x})
-    Function<B extends core.int>(int x);
-typedef F9<T> = List<Function> Function([int x]) Function<B extends core.int>(
-    int x);
-typedef F10<T> = List<Function> Function(List<Function> x1)
-    Function<B extends core.int>(int x);
-typedef F11<T> = List<Function> Function(int x, [List<T> x1])
-    Function<B extends core.int>(int x);
-typedef F12<T> = core.List<core.int> Function(int x1, {Function x})
-    Function<B extends core.int>(int x);
-typedef F13<T> = core.List<core.int> Function([List<T> x])
-    Function<B extends core.int>(int x);
-typedef F14<T> = List<T> Function(int y, [Function x])
-    Function<B extends core.int>(int x);
-typedef F15<T> = List<T> Function(int x2, [core.List<core.int> x3])
-    Function<B extends core.int>(int x);
-typedef F16<T> = Function({int x}) Function<B extends core.int>(int x);
-typedef F17<T> = Function(core.List<core.int> x) Function<B extends core.int>(
-    int x);
-typedef F18<T> = void Function(int x1, [int x]) Function<B extends core.int>(
-    int x);
-typedef F19<T> = void Function([List<Function> x1])
-    Function<B extends core.int>(int x);
-typedef F20<T> = void Function({List<T> x}) Function<B extends core.int>(int x);
-typedef F21<T> = List<Function> Function<A>() Function<B extends core.int>(
-    int x);
-typedef F22<T> = Function<A>(A x) Function<B extends core.int>(int x);
-typedef F23<T> = void Function<A>(List<A> x) Function<B extends core.int>(
-    int x);
-
-int f0({Function x}) => null;
-List<Function> f1(int x, [int x0]) => null;
-core.List<core.int> f2(int x, [List<int> x0]) => null;
-f3(int x0, [core.List<core.int> x1]) => null;
-core.List<core.int> f4<A>(core.List<core.int> x) => null;
-int Function(int x0, [Function x]) f5<B extends core.int>(int x) => null;
-int Function([core.List<core.int> x0]) f6<B extends core.int>(int x) => null;
-Function Function(int x, [int x0]) f7<B extends core.int>(int x) => null;
-Function Function(int y, {List<Function> x}) f8<B extends core.int>(int x) =>
-    null;
-List<Function> Function([int x]) f9<B extends core.int>(int x) => null;
-List<Function> Function(List<Function> x0) f10<B extends core.int>(int x) =>
-    null;
-List<Function> Function(int x, [List<int> x0]) f11<B extends core.int>(int x) =>
-    null;
-core.List<core.int> Function(int x0, {Function x}) f12<B extends core.int>(
-        int x) =>
-    null;
-core.List<core.int> Function([List<int> x]) f13<B extends core.int>(int x) =>
-    null;
-List<int> Function(int y, [Function x]) f14<B extends core.int>(int x) => null;
-List<int> Function(int x0, [core.List<core.int> x1]) f15<B extends core.int>(
-        int x) =>
-    null;
-Function({int x}) f16<B extends core.int>(int x) => null;
-Function(core.List<core.int> x) f17<B extends core.int>(int x) => null;
-void Function(int x0, [int x]) f18<B extends core.int>(int x) => null;
-void Function([List<Function> x0]) f19<B extends core.int>(int x) => null;
-void Function({List<int> x}) f20<B extends core.int>(int x) => null;
-List<Function> Function<A>() f21<B extends core.int>(int x) => null;
-Function<A>(A x) f22<B extends core.int>(int x) => null;
-void Function<A>(List<A> x) f23<B extends core.int>(int x) => null;
-
-class U19<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function({Function x}) x0;
-  List<Function> Function(int x, [int x2]) x1;
-  core.List<core.int> Function(int x, [List<T> x2]) x2;
-  Function(int x1, [core.List<core.int> x2]) x3;
-  core.List<core.int> Function<A>(core.List<core.int> x) x4;
-  int Function(int x1, [Function x]) Function<B extends core.int>(int x) x5;
-  int Function([core.List<core.int> x1]) Function<B extends core.int>(int x) x6;
-  Function Function(int x, [int x1]) Function<B extends core.int>(int x) x7;
-  Function Function(int y, {List<Function> x}) Function<B extends core.int>(
-      int x) x8;
-  List<Function> Function([int x]) Function<B extends core.int>(int x) x9;
-  List<Function> Function(List<Function> x1) Function<B extends core.int>(int x)
-      x10;
-  List<Function> Function(int x, [List<T> x1]) Function<B extends core.int>(
-      int x) x11;
-  core.List<core.int> Function(int x1, {Function x})
-      Function<B extends core.int>(int x) x12;
-  core.List<core.int> Function([List<T> x]) Function<B extends core.int>(int x)
-      x13;
-  List<T> Function(int y, [Function x]) Function<B extends core.int>(int x) x14;
-  List<T> Function(int x2, [core.List<core.int> x3])
-      Function<B extends core.int>(int x) x15;
-  Function({int x}) Function<B extends core.int>(int x) x16;
-  Function(core.List<core.int> x) Function<B extends core.int>(int x) x17;
-  void Function(int x1, [int x]) Function<B extends core.int>(int x) x18;
-  void Function([List<Function> x1]) Function<B extends core.int>(int x) x19;
-  void Function({List<T> x}) Function<B extends core.int>(int x) x20;
-  List<Function> Function<A>() Function<B extends core.int>(int x) x21;
-  Function<A>(A x) Function<B extends core.int>(int x) x22;
-  void Function<A>(List<A> x) Function<B extends core.int>(int x) x23;
-
-  U19({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0({Function x}) => null;
-  List<Function> m1(int x, [int x0]) => null;
-  core.List<core.int> m2(int x, [List<T> x0]) => null;
-  m3(int x0, [core.List<core.int> x1]) => null;
-  core.List<core.int> m4<A>(core.List<core.int> x) => null;
-  int Function(int x0, [Function x]) m5<B extends core.int>(int x) => null;
-  int Function([core.List<core.int> x0]) m6<B extends core.int>(int x) => null;
-  Function Function(int x, [int x0]) m7<B extends core.int>(int x) => null;
-  Function Function(int y, {List<Function> x}) m8<B extends core.int>(int x) =>
-      null;
-  List<Function> Function([int x]) m9<B extends core.int>(int x) => null;
-  List<Function> Function(List<Function> x0) m10<B extends core.int>(int x) =>
-      null;
-  List<Function> Function(int x, [List<T> x0]) m11<B extends core.int>(int x) =>
-      null;
-  core.List<core.int> Function(int x0, {Function x}) m12<B extends core.int>(
-          int x) =>
-      null;
-  core.List<core.int> Function([List<T> x]) m13<B extends core.int>(int x) =>
-      null;
-  List<T> Function(int y, [Function x]) m14<B extends core.int>(int x) => null;
-  List<T> Function(int x0, [core.List<core.int> x1]) m15<B extends core.int>(
-          int x) =>
-      null;
-  Function({int x}) m16<B extends core.int>(int x) => null;
-  Function(core.List<core.int> x) m17<B extends core.int>(int x) => null;
-  void Function(int x0, [int x]) m18<B extends core.int>(int x) => null;
-  void Function([List<Function> x0]) m19<B extends core.int>(int x) => null;
-  void Function({List<T> x}) m20<B extends core.int>(int x) => null;
-  List<Function> Function<A>() m21<B extends core.int>(int x) => null;
-  Function<A>(A x) m22<B extends core.int>(int x) => null;
-  void Function<A>(List<A> x) m23<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function({Function x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function({Function x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function({Function x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(int x, [int x2])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x, [int x2]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(int x, [int x2]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// core.List<core.int> Function(int x, [List<T> x2])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x, [List<T> x2]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is core.List<core.int> Function(int x, [List<T> x2]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m2 is F2<int>);
-      Expect.equals(true, m2 is F2<bool>);
-      Expect.equals(true, confuse(m2) is F2<int>);
-      Expect.equals(true, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// Function(int x1, [core.List<core.int> x2])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, [core.List<core.int> x2]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function(int x1, [core.List<core.int> x2]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// core.List<core.int> Function<A>(core.List<core.int> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(core.List<core.int> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is core.List<core.int> Function<A>(core.List<core.int> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x1, [Function x]) Function<B extends core.int>(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, [Function x]) Function<B extends core.int>(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x1, [Function x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function([core.List<core.int> x1]) Function<B extends core.int>(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function([core.List<core.int> x1]) Function<B extends core.int>(int x)
-        l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function([core.List<core.int> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int x, [int x1]) Function<B extends core.int>(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x, [int x1]) Function<B extends core.int>(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x, [int x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int y, {List<Function> x}) Function<B extends core.int>(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, {List<Function> x}) Function<B extends core.int>(
-        int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int y, {List<Function> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function([int x]) Function<B extends core.int>(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([int x]) Function<B extends core.int>(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function([int x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(List<Function> x1) Function<B extends core.int>(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(List<Function> x1) Function<B extends core.int>(
-        int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(List<Function> x1)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function(int x, [List<T> x1]) Function<B extends core.int>(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x, [List<T> x1]) Function<B extends core.int>(
-        int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is List<Function> Function(int x, [List<T> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int x1, {Function x}) Function<B extends core.int>(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, {Function x})
-        Function<B extends core.int>(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x1, {Function x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function([List<T> x]) Function<B extends core.int>(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([List<T> x]) Function<B extends core.int>(
-        int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function([List<T> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, [Function x]) Function<B extends core.int>(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, [Function x]) Function<B extends core.int>(int x)
-        l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int y, [Function x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x2, [core.List<core.int> x3]) Function<B extends core.int>(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x2, [core.List<core.int> x3])
-        Function<B extends core.int>(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x2, [core.List<core.int> x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function({int x}) Function<B extends core.int>(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function({int x}) Function<B extends core.int>(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function({int x}) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(core.List<core.int> x) Function<B extends core.int>(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(core.List<core.int> x) Function<B extends core.int>(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(core.List<core.int> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int x1, [int x]) Function<B extends core.int>(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, [int x]) Function<B extends core.int>(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x1, [int x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function([List<Function> x1]) Function<B extends core.int>(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function([List<Function> x1]) Function<B extends core.int>(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function([List<Function> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function({List<T> x}) Function<B extends core.int>(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function({List<T> x}) Function<B extends core.int>(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(
-        m20 is void Function({List<T> x}) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>() Function<B extends core.int>(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>() Function<B extends core.int>(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<Function> Function<A>()
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// Function<A>(A x) Function<B extends core.int>(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    Function<A>(A x) Function<B extends core.int>(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is Function<A>(A x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// void Function<A>(List<A> x) Function<B extends core.int>(int x)
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(List<A> x) Function<B extends core.int>(int x) l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(
-        m23 is void Function<A>(List<A> x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U19().runTests();
-  new U19<int>(tIsInt: true).runTests();
-  new U19<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type1_test.dart b/tests/language_2/function_type/function_type1_test.dart
deleted file mode 100644
index 7e267fdd279..00000000000
--- a/tests/language_2/function_type/function_type1_test.dart
+++ /dev/null
@@ -1,925 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function([int x]);
-typedef F1<T> = Function Function([List<T> x]);
-typedef F2<T> = core.List<core.int> Function(core.List<core.int> x);
-typedef F3<T> = Function(int y, {Function x});
-typedef F4<T> = Function Function<A>(Function x);
-typedef F5<T> = int Function(int x1, {int x}) Function(int x);
-typedef F6<T> = int Function([core.List<core.int> x]) Function(int x);
-typedef F7<T> = Function Function(int y, [int x]) Function(int x);
-typedef F8<T> = Function Function(int x2, [List<Function> x3]) Function(int x);
-typedef F9<T> = Function Function(int x1, {List<T> x}) Function(int x);
-typedef F10<T> = List<Function> Function(List<Function> x) Function(int x);
-typedef F11<T> = List<Function> Function(int y, [List<T> x]) Function(int x);
-typedef F12<T> = core.List<core.int> Function([Function x1]) Function(int x);
-typedef F13<T> = core.List<core.int> Function({core.List<core.int> x}) Function(
-    int x);
-typedef F14<T> = List<T> Function(int y, {int x}) Function(int x);
-typedef F15<T> = List<T> Function(int x1, [core.List<core.int> x]) Function(
-    int x);
-typedef F16<T> = Function(int x1) Function(int x);
-typedef F17<T> = Function(int x, [List<Function> x1]) Function(int x);
-typedef F18<T> = Function(int y, {List<T> x}) Function(int x);
-typedef F19<T> = void Function([List<Function> x]) Function(int x);
-typedef F20<T> = void Function(List<T> x1) Function(int x);
-typedef F21<T> = List<Function> Function<A>(Function x) Function(int x);
-typedef F22<T> = Function<A>(List<Function> x) Function(int x);
-typedef F23<T> = void Function<A>(core.List<core.int> x) Function(int x);
-
-int f0([int x]) => null;
-Function f1([List<int> x]) => null;
-core.List<core.int> f2(core.List<core.int> x) => null;
-f3(int y, {Function x}) => null;
-Function f4<A>(Function x) => null;
-int Function(int x0, {int x}) f5(int x) => null;
-int Function([core.List<core.int> x]) f6(int x) => null;
-Function Function(int y, [int x]) f7(int x) => null;
-Function Function(int x0, [List<Function> x1]) f8(int x) => null;
-Function Function(int x0, {List<int> x}) f9(int x) => null;
-List<Function> Function(List<Function> x) f10(int x) => null;
-List<Function> Function(int y, [List<int> x]) f11(int x) => null;
-core.List<core.int> Function([Function x0]) f12(int x) => null;
-core.List<core.int> Function({core.List<core.int> x}) f13(int x) => null;
-List<int> Function(int y, {int x}) f14(int x) => null;
-List<int> Function(int x0, [core.List<core.int> x]) f15(int x) => null;
-Function(int x0) f16(int x) => null;
-Function(int x, [List<Function> x0]) f17(int x) => null;
-Function(int y, {List<int> x}) f18(int x) => null;
-void Function([List<Function> x]) f19(int x) => null;
-void Function(List<int> x0) f20(int x) => null;
-List<Function> Function<A>(Function x) f21(int x) => null;
-Function<A>(List<Function> x) f22(int x) => null;
-void Function<A>(core.List<core.int> x) f23(int x) => null;
-
-class U1<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function([int x]) x0;
-  Function Function([List<T> x]) x1;
-  core.List<core.int> Function(core.List<core.int> x) x2;
-  Function(int y, {Function x}) x3;
-  Function Function<A>(Function x) x4;
-  int Function(int x1, {int x}) Function(int x) x5;
-  int Function([core.List<core.int> x]) Function(int x) x6;
-  Function Function(int y, [int x]) Function(int x) x7;
-  Function Function(int x2, [List<Function> x3]) Function(int x) x8;
-  Function Function(int x1, {List<T> x}) Function(int x) x9;
-  List<Function> Function(List<Function> x) Function(int x) x10;
-  List<Function> Function(int y, [List<T> x]) Function(int x) x11;
-  core.List<core.int> Function([Function x1]) Function(int x) x12;
-  core.List<core.int> Function({core.List<core.int> x}) Function(int x) x13;
-  List<T> Function(int y, {int x}) Function(int x) x14;
-  List<T> Function(int x1, [core.List<core.int> x]) Function(int x) x15;
-  Function(int x1) Function(int x) x16;
-  Function(int x, [List<Function> x1]) Function(int x) x17;
-  Function(int y, {List<T> x}) Function(int x) x18;
-  void Function([List<Function> x]) Function(int x) x19;
-  void Function(List<T> x1) Function(int x) x20;
-  List<Function> Function<A>(Function x) Function(int x) x21;
-  Function<A>(List<Function> x) Function(int x) x22;
-  void Function<A>(core.List<core.int> x) Function(int x) x23;
-
-  U1({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0([int x]) => null;
-  Function m1([List<T> x]) => null;
-  core.List<core.int> m2(core.List<core.int> x) => null;
-  m3(int y, {Function x}) => null;
-  Function m4<A>(Function x) => null;
-  int Function(int x0, {int x}) m5(int x) => null;
-  int Function([core.List<core.int> x]) m6(int x) => null;
-  Function Function(int y, [int x]) m7(int x) => null;
-  Function Function(int x0, [List<Function> x1]) m8(int x) => null;
-  Function Function(int x0, {List<T> x}) m9(int x) => null;
-  List<Function> Function(List<Function> x) m10(int x) => null;
-  List<Function> Function(int y, [List<T> x]) m11(int x) => null;
-  core.List<core.int> Function([Function x0]) m12(int x) => null;
-  core.List<core.int> Function({core.List<core.int> x}) m13(int x) => null;
-  List<T> Function(int y, {int x}) m14(int x) => null;
-  List<T> Function(int x0, [core.List<core.int> x]) m15(int x) => null;
-  Function(int x0) m16(int x) => null;
-  Function(int x, [List<Function> x0]) m17(int x) => null;
-  Function(int y, {List<T> x}) m18(int x) => null;
-  void Function([List<Function> x]) m19(int x) => null;
-  void Function(List<T> x0) m20(int x) => null;
-  List<Function> Function<A>(Function x) m21(int x) => null;
-  Function<A>(List<Function> x) m22(int x) => null;
-  void Function<A>(core.List<core.int> x) m23(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function([int x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function([int x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function([int x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// Function Function([List<T> x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    Function Function([List<T> x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is Function Function([List<T> x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-    // The static function has its T always set to int.
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isFalse(f1 is F1<bool>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    Expect.isFalse(confuse(f1) is F1<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        x1 = confuse(f1);
-      });
-      Expect.throws(() {
-        l1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        l1 = confuse(f1);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m1 is F1<int>);
-      Expect.equals(true, m1 is F1<bool>);
-      Expect.equals(true, confuse(m1) is F1<int>);
-      Expect.equals(true, confuse(m1) is F1<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(core.List<core.int> x)
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(core.List<core.int> x) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is core.List<core.int> Function(core.List<core.int> x));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// Function(int y, {Function x})
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function(int y, {Function x}) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function(int y, {Function x}));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// Function Function<A>(Function x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(Function x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is Function Function<A>(Function x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x1, {int x}) Function(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, {int x}) Function(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x1, {int x}) Function(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function([core.List<core.int> x]) Function(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function([core.List<core.int> x]) Function(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function([core.List<core.int> x]) Function(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int y, [int x]) Function(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, [int x]) Function(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int y, [int x]) Function(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x2, [List<Function> x3]) Function(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x2, [List<Function> x3]) Function(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(
-        m8 is Function Function(int x2, [List<Function> x3]) Function(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// Function Function(int x1, {List<T> x}) Function(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, {List<T> x}) Function(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is Function Function(int x1, {List<T> x}) Function(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-    // The static function has its T always set to int.
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isFalse(f9 is F9<bool>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    Expect.isFalse(confuse(f9) is F9<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x9 = (f9 as dynamic);
-      });
-      Expect.throws(() {
-        x9 = confuse(f9);
-      });
-      Expect.throws(() {
-        l9 = (f9 as dynamic);
-      });
-      Expect.throws(() {
-        l9 = confuse(f9);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m9 is F9<int>);
-      Expect.equals(tIsBool, m9 is F9<bool>);
-      Expect.equals(tIsInt, confuse(m9) is F9<int>);
-      Expect.equals(tIsBool, confuse(m9) is F9<bool>);
-    }
-  }
-
-  /// List<Function> Function(List<Function> x) Function(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(List<Function> x) Function(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(
-        m10 is List<Function> Function(List<Function> x) Function(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function(int y, [List<T> x]) Function(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, [List<T> x]) Function(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is List<Function> Function(int y, [List<T> x]) Function(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function([Function x1]) Function(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([Function x1]) Function(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(
-        m12 is core.List<core.int> Function([Function x1]) Function(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function({core.List<core.int> x}) Function(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function({core.List<core.int> x}) Function(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function({core.List<core.int> x})
-        Function(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-  }
-
-  /// List<T> Function(int y, {int x}) Function(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, {int x}) Function(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int y, {int x}) Function(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x1, [core.List<core.int> x]) Function(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, [core.List<core.int> x]) Function(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x1, [core.List<core.int> x])
-        Function(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x1) Function(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x1) Function(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x1) Function(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x, [List<Function> x1]) Function(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x, [List<Function> x1]) Function(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x, [List<Function> x1]) Function(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// Function(int y, {List<T> x}) Function(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    Function(int y, {List<T> x}) Function(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is Function(int y, {List<T> x}) Function(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-    // The static function has its T always set to int.
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isFalse(f18 is F18<bool>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    Expect.isFalse(confuse(f18) is F18<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x18 = (f18 as dynamic);
-      });
-      Expect.throws(() {
-        x18 = confuse(f18);
-      });
-      Expect.throws(() {
-        l18 = (f18 as dynamic);
-      });
-      Expect.throws(() {
-        l18 = confuse(f18);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m18 is F18<int>);
-      Expect.equals(tIsBool, m18 is F18<bool>);
-      Expect.equals(tIsInt, confuse(m18) is F18<int>);
-      Expect.equals(tIsBool, confuse(m18) is F18<bool>);
-    }
-  }
-
-  /// void Function([List<Function> x]) Function(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function([List<Function> x]) Function(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function([List<Function> x]) Function(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function(List<T> x1) Function(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function(List<T> x1) Function(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is void Function(List<T> x1) Function(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(Function x) Function(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(Function x) Function(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(
-        m21 is List<Function> Function<A>(Function x) Function(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// Function<A>(List<Function> x) Function(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    Function<A>(List<Function> x) Function(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is Function<A>(List<Function> x) Function(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// void Function<A>(core.List<core.int> x) Function(int x)
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(core.List<core.int> x) Function(int x) l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(
-        m23 is void Function<A>(core.List<core.int> x) Function(int x));
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U1().runTests();
-  new U1<int>(tIsInt: true).runTests();
-  new U1<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type20_test.dart b/tests/language_2/function_type/function_type20_test.dart
deleted file mode 100644
index ab832758a11..00000000000
--- a/tests/language_2/function_type/function_type20_test.dart
+++ /dev/null
@@ -1,920 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int x0, {Function x});
-typedef F1<T> = List<Function> Function({int x});
-typedef F2<T> = core.List<core.int> Function({List<T> x});
-typedef F3<T> = Function(int x, [core.List<core.int> x2]);
-typedef F4<T> = core.List<core.int> Function<A>(List<T> x);
-typedef F5<T> = int Function(int y, [Function x]) Function();
-typedef F6<T> = int Function(int x1, [core.List<core.int> x2]) Function();
-typedef F7<T> = Function Function({int x}) Function();
-typedef F8<T> = Function Function(core.List<core.int> x) Function();
-typedef F9<T> = List<Function> Function(int x0, [int x]) Function();
-typedef F10<T> = List<Function> Function([List<Function> x1]) Function();
-typedef F11<T> = List<Function> Function({List<T> x}) Function();
-typedef F12<T> = core.List<core.int> Function(int y, {Function x}) Function();
-typedef F13<T> = core.List<core.int> Function(int x0, [List<T> x]) Function();
-typedef F14<T> = List<T> Function(Function x0) Function();
-typedef F15<T> = List<T> Function(int x, [core.List<core.int> x2]) Function();
-typedef F16<T> = Function(int x0, {int x}) Function();
-typedef F17<T> = Function([core.List<core.int> x]) Function();
-typedef F18<T> = void Function(int y, [int x]) Function();
-typedef F19<T> = void Function(int x1, [List<Function> x2]) Function();
-typedef F20<T> = void Function(int x0, {List<T> x}) Function();
-typedef F21<T> = List<Function> Function<A>(A x) Function();
-typedef F22<T> = Function<A>(List<A> x) Function();
-typedef F23<T> = int Function(B x) Function<B extends core.int>();
-
-int f0(int x0, {Function x}) => null;
-List<Function> f1({int x}) => null;
-core.List<core.int> f2({List<int> x}) => null;
-f3(int x, [core.List<core.int> x0]) => null;
-core.List<core.int> f4<A>(List<int> x) => null;
-int Function(int y, [Function x]) f5() => null;
-int Function(int x0, [core.List<core.int> x1]) f6() => null;
-Function Function({int x}) f7() => null;
-Function Function(core.List<core.int> x) f8() => null;
-List<Function> Function(int x0, [int x]) f9() => null;
-List<Function> Function([List<Function> x0]) f10() => null;
-List<Function> Function({List<int> x}) f11() => null;
-core.List<core.int> Function(int y, {Function x}) f12() => null;
-core.List<core.int> Function(int x0, [List<int> x]) f13() => null;
-List<int> Function(Function x0) f14() => null;
-List<int> Function(int x, [core.List<core.int> x0]) f15() => null;
-Function(int x0, {int x}) f16() => null;
-Function([core.List<core.int> x]) f17() => null;
-void Function(int y, [int x]) f18() => null;
-void Function(int x0, [List<Function> x1]) f19() => null;
-void Function(int x0, {List<int> x}) f20() => null;
-List<Function> Function<A>(A x) f21() => null;
-Function<A>(List<A> x) f22() => null;
-int Function(B x) f23<B extends core.int>() => null;
-
-class U20<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int x0, {Function x}) x0;
-  List<Function> Function({int x}) x1;
-  core.List<core.int> Function({List<T> x}) x2;
-  Function(int x, [core.List<core.int> x2]) x3;
-  core.List<core.int> Function<A>(List<T> x) x4;
-  int Function(int y, [Function x]) Function() x5;
-  int Function(int x1, [core.List<core.int> x2]) Function() x6;
-  Function Function({int x}) Function() x7;
-  Function Function(core.List<core.int> x) Function() x8;
-  List<Function> Function(int x0, [int x]) Function() x9;
-  List<Function> Function([List<Function> x1]) Function() x10;
-  List<Function> Function({List<T> x}) Function() x11;
-  core.List<core.int> Function(int y, {Function x}) Function() x12;
-  core.List<core.int> Function(int x0, [List<T> x]) Function() x13;
-  List<T> Function(Function x0) Function() x14;
-  List<T> Function(int x, [core.List<core.int> x2]) Function() x15;
-  Function(int x0, {int x}) Function() x16;
-  Function([core.List<core.int> x]) Function() x17;
-  void Function(int y, [int x]) Function() x18;
-  void Function(int x1, [List<Function> x2]) Function() x19;
-  void Function(int x0, {List<T> x}) Function() x20;
-  List<Function> Function<A>(A x) Function() x21;
-  Function<A>(List<A> x) Function() x22;
-  int Function(B x) Function<B extends core.int>() x23;
-
-  U20({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int x0, {Function x}) => null;
-  List<Function> m1({int x}) => null;
-  core.List<core.int> m2({List<T> x}) => null;
-  m3(int x, [core.List<core.int> x0]) => null;
-  core.List<core.int> m4<A>(List<T> x) => null;
-  int Function(int y, [Function x]) m5() => null;
-  int Function(int x0, [core.List<core.int> x1]) m6() => null;
-  Function Function({int x}) m7() => null;
-  Function Function(core.List<core.int> x) m8() => null;
-  List<Function> Function(int x0, [int x]) m9() => null;
-  List<Function> Function([List<Function> x0]) m10() => null;
-  List<Function> Function({List<T> x}) m11() => null;
-  core.List<core.int> Function(int y, {Function x}) m12() => null;
-  core.List<core.int> Function(int x0, [List<T> x]) m13() => null;
-  List<T> Function(Function x0) m14() => null;
-  List<T> Function(int x, [core.List<core.int> x0]) m15() => null;
-  Function(int x0, {int x}) m16() => null;
-  Function([core.List<core.int> x]) m17() => null;
-  void Function(int y, [int x]) m18() => null;
-  void Function(int x0, [List<Function> x1]) m19() => null;
-  void Function(int x0, {List<T> x}) m20() => null;
-  List<Function> Function<A>(A x) m21() => null;
-  Function<A>(List<A> x) m22() => null;
-  int Function(B x) m23<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int x0, {Function x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int x0, {Function x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int x0, {Function x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function({int x})
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function({int x}) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function({int x}));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// core.List<core.int> Function({List<T> x})
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function({List<T> x}) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is core.List<core.int> Function({List<T> x}));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m2 is F2<int>);
-      Expect.equals(true, m2 is F2<bool>);
-      Expect.equals(true, confuse(m2) is F2<int>);
-      Expect.equals(true, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// Function(int x, [core.List<core.int> x2])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function(int x, [core.List<core.int> x2]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function(int x, [core.List<core.int> x2]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// core.List<core.int> Function<A>(List<T> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(List<T> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is core.List<core.int> Function<A>(List<T> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-    // The static function has its T always set to int.
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isFalse(f4 is F4<bool>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    Expect.isFalse(confuse(f4) is F4<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        x4 = confuse(f4);
-      });
-      Expect.throws(() {
-        l4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        l4 = confuse(f4);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m4 is F4<int>);
-      Expect.equals(true, m4 is F4<bool>);
-      Expect.equals(true, confuse(m4) is F4<int>);
-      Expect.equals(true, confuse(m4) is F4<bool>);
-    }
-  }
-
-  /// int Function(int y, [Function x]) Function()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, [Function x]) Function() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int y, [Function x]) Function());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x1, [core.List<core.int> x2]) Function()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, [core.List<core.int> x2]) Function() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is int Function(int x1, [core.List<core.int> x2]) Function());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function({int x}) Function()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function({int x}) Function() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function({int x}) Function());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(core.List<core.int> x) Function()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(core.List<core.int> x) Function() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(core.List<core.int> x) Function());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int x0, [int x]) Function()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x0, [int x]) Function() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int x0, [int x]) Function());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function([List<Function> x1]) Function()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([List<Function> x1]) Function() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(
-        m10 is List<Function> Function([List<Function> x1]) Function());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function({List<T> x}) Function()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function({List<T> x}) Function() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is List<Function> Function({List<T> x}) Function());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int y, {Function x}) Function()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, {Function x}) Function() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(
-        m12 is core.List<core.int> Function(int y, {Function x}) Function());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int x0, [List<T> x]) Function()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x0, [List<T> x]) Function() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(
-        m13 is core.List<core.int> Function(int x0, [List<T> x]) Function());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(Function x0) Function()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(Function x0) Function() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(Function x0) Function());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x, [core.List<core.int> x2]) Function()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x, [core.List<core.int> x2]) Function() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(
-        m15 is List<T> Function(int x, [core.List<core.int> x2]) Function());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x0, {int x}) Function()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x0, {int x}) Function() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x0, {int x}) Function());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function([core.List<core.int> x]) Function()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function([core.List<core.int> x]) Function() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function([core.List<core.int> x]) Function());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int y, [int x]) Function()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, [int x]) Function() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int y, [int x]) Function());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x1, [List<Function> x2]) Function()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, [List<Function> x2]) Function() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int x1, [List<Function> x2]) Function());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function(int x0, {List<T> x}) Function()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function(int x0, {List<T> x}) Function() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is void Function(int x0, {List<T> x}) Function());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(A x) Function()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(A x) Function() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<Function> Function<A>(A x) Function());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// Function<A>(List<A> x) Function()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    Function<A>(List<A> x) Function() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is Function<A>(List<A> x) Function());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// int Function(B x) Function<B extends core.int>()
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    int Function(B x) Function<B extends core.int>() l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is int Function(B x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U20().runTests();
-  new U20<int>(tIsInt: true).runTests();
-  new U20<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type21_test.dart b/tests/language_2/function_type/function_type21_test.dart
deleted file mode 100644
index 163cb844fb2..00000000000
--- a/tests/language_2/function_type/function_type21_test.dart
+++ /dev/null
@@ -1,901 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int y, {Function x});
-typedef F1<T> = List<Function> Function(int x0, {int x});
-typedef F2<T> = core.List<core.int> Function(int x0, {List<T> x});
-typedef F3<T> = Function({core.List<core.int> x});
-typedef F4<T> = core.List<core.int> Function<A>();
-typedef F5<T> = int Function(int y, [Function x]) Function(int x);
-typedef F6<T> = int Function(int x2, [core.List<core.int> x3]) Function(int x);
-typedef F7<T> = Function Function({int x}) Function(int x);
-typedef F8<T> = Function Function(core.List<core.int> x) Function(int x);
-typedef F9<T> = List<Function> Function(int x1, [int x]) Function(int x);
-typedef F10<T> = List<Function> Function([List<Function> x1]) Function(int x);
-typedef F11<T> = List<Function> Function({List<T> x}) Function(int x);
-typedef F12<T> = core.List<core.int> Function(int y, {Function x}) Function(
-    int x);
-typedef F13<T> = core.List<core.int> Function(int x1, [List<T> x]) Function(
-    int x);
-typedef F14<T> = List<T> Function(Function x1) Function(int x);
-typedef F15<T> = List<T> Function(int x, [core.List<core.int> x1]) Function(
-    int x);
-typedef F16<T> = Function(int x1, {int x}) Function(int x);
-typedef F17<T> = Function([core.List<core.int> x]) Function(int x);
-typedef F18<T> = void Function(int y, [int x]) Function(int x);
-typedef F19<T> = void Function(int x2, [List<Function> x3]) Function(int x);
-typedef F20<T> = void Function(int x1, {List<T> x}) Function(int x);
-typedef F21<T> = List<Function> Function<A>(A x) Function(int x);
-typedef F22<T> = Function<A>(List<A> x) Function(int x);
-typedef F23<T> = int Function(B x) Function<B extends core.int>(int x);
-
-int f0(int y, {Function x}) => null;
-List<Function> f1(int x0, {int x}) => null;
-core.List<core.int> f2(int x0, {List<int> x}) => null;
-f3({core.List<core.int> x}) => null;
-core.List<core.int> f4<A>() => null;
-int Function(int y, [Function x]) f5(int x) => null;
-int Function(int x0, [core.List<core.int> x1]) f6(int x) => null;
-Function Function({int x}) f7(int x) => null;
-Function Function(core.List<core.int> x) f8(int x) => null;
-List<Function> Function(int x0, [int x]) f9(int x) => null;
-List<Function> Function([List<Function> x0]) f10(int x) => null;
-List<Function> Function({List<int> x}) f11(int x) => null;
-core.List<core.int> Function(int y, {Function x}) f12(int x) => null;
-core.List<core.int> Function(int x0, [List<int> x]) f13(int x) => null;
-List<int> Function(Function x0) f14(int x) => null;
-List<int> Function(int x, [core.List<core.int> x0]) f15(int x) => null;
-Function(int x0, {int x}) f16(int x) => null;
-Function([core.List<core.int> x]) f17(int x) => null;
-void Function(int y, [int x]) f18(int x) => null;
-void Function(int x0, [List<Function> x1]) f19(int x) => null;
-void Function(int x0, {List<int> x}) f20(int x) => null;
-List<Function> Function<A>(A x) f21(int x) => null;
-Function<A>(List<A> x) f22(int x) => null;
-int Function(B x) f23<B extends core.int>(int x) => null;
-
-class U21<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int y, {Function x}) x0;
-  List<Function> Function(int x0, {int x}) x1;
-  core.List<core.int> Function(int x0, {List<T> x}) x2;
-  Function({core.List<core.int> x}) x3;
-  core.List<core.int> Function<A>() x4;
-  int Function(int y, [Function x]) Function(int x) x5;
-  int Function(int x2, [core.List<core.int> x3]) Function(int x) x6;
-  Function Function({int x}) Function(int x) x7;
-  Function Function(core.List<core.int> x) Function(int x) x8;
-  List<Function> Function(int x1, [int x]) Function(int x) x9;
-  List<Function> Function([List<Function> x1]) Function(int x) x10;
-  List<Function> Function({List<T> x}) Function(int x) x11;
-  core.List<core.int> Function(int y, {Function x}) Function(int x) x12;
-  core.List<core.int> Function(int x1, [List<T> x]) Function(int x) x13;
-  List<T> Function(Function x1) Function(int x) x14;
-  List<T> Function(int x, [core.List<core.int> x1]) Function(int x) x15;
-  Function(int x1, {int x}) Function(int x) x16;
-  Function([core.List<core.int> x]) Function(int x) x17;
-  void Function(int y, [int x]) Function(int x) x18;
-  void Function(int x2, [List<Function> x3]) Function(int x) x19;
-  void Function(int x1, {List<T> x}) Function(int x) x20;
-  List<Function> Function<A>(A x) Function(int x) x21;
-  Function<A>(List<A> x) Function(int x) x22;
-  int Function(B x) Function<B extends core.int>(int x) x23;
-
-  U21({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int y, {Function x}) => null;
-  List<Function> m1(int x0, {int x}) => null;
-  core.List<core.int> m2(int x0, {List<T> x}) => null;
-  m3({core.List<core.int> x}) => null;
-  core.List<core.int> m4<A>() => null;
-  int Function(int y, [Function x]) m5(int x) => null;
-  int Function(int x0, [core.List<core.int> x1]) m6(int x) => null;
-  Function Function({int x}) m7(int x) => null;
-  Function Function(core.List<core.int> x) m8(int x) => null;
-  List<Function> Function(int x0, [int x]) m9(int x) => null;
-  List<Function> Function([List<Function> x0]) m10(int x) => null;
-  List<Function> Function({List<T> x}) m11(int x) => null;
-  core.List<core.int> Function(int y, {Function x}) m12(int x) => null;
-  core.List<core.int> Function(int x0, [List<T> x]) m13(int x) => null;
-  List<T> Function(Function x0) m14(int x) => null;
-  List<T> Function(int x, [core.List<core.int> x0]) m15(int x) => null;
-  Function(int x0, {int x}) m16(int x) => null;
-  Function([core.List<core.int> x]) m17(int x) => null;
-  void Function(int y, [int x]) m18(int x) => null;
-  void Function(int x0, [List<Function> x1]) m19(int x) => null;
-  void Function(int x0, {List<T> x}) m20(int x) => null;
-  List<Function> Function<A>(A x) m21(int x) => null;
-  Function<A>(List<A> x) m22(int x) => null;
-  int Function(B x) m23<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int y, {Function x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, {Function x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int y, {Function x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(int x0, {int x})
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x0, {int x}) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(int x0, {int x}));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// core.List<core.int> Function(int x0, {List<T> x})
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x0, {List<T> x}) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is core.List<core.int> Function(int x0, {List<T> x}));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m2 is F2<int>);
-      Expect.equals(true, m2 is F2<bool>);
-      Expect.equals(true, confuse(m2) is F2<int>);
-      Expect.equals(true, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// Function({core.List<core.int> x})
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function({core.List<core.int> x}) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function({core.List<core.int> x}));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// core.List<core.int> Function<A>()
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>() l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is core.List<core.int> Function<A>());
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int y, [Function x]) Function(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, [Function x]) Function(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int y, [Function x]) Function(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x2, [core.List<core.int> x3]) Function(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x2, [core.List<core.int> x3]) Function(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is int Function(int x2, [core.List<core.int> x3]) Function(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function({int x}) Function(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function({int x}) Function(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function({int x}) Function(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(core.List<core.int> x) Function(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(core.List<core.int> x) Function(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(
-        m8 is Function Function(core.List<core.int> x) Function(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int x1, [int x]) Function(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, [int x]) Function(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(
-        m9 is List<Function> Function(int x1, [int x]) Function(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function([List<Function> x1]) Function(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([List<Function> x1]) Function(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(
-        m10 is List<Function> Function([List<Function> x1]) Function(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function({List<T> x}) Function(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function({List<T> x}) Function(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is List<Function> Function({List<T> x}) Function(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int y, {Function x}) Function(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, {Function x}) Function(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int y, {Function x})
-        Function(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int x1, [List<T> x]) Function(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, [List<T> x]) Function(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(int x1, [List<T> x])
-        Function(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(Function x1) Function(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(Function x1) Function(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(Function x1) Function(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x, [core.List<core.int> x1]) Function(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x, [core.List<core.int> x1]) Function(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x, [core.List<core.int> x1])
-        Function(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x1, {int x}) Function(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, {int x}) Function(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x1, {int x}) Function(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function([core.List<core.int> x]) Function(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function([core.List<core.int> x]) Function(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function([core.List<core.int> x]) Function(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int y, [int x]) Function(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, [int x]) Function(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int y, [int x]) Function(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x2, [List<Function> x3]) Function(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x2, [List<Function> x3]) Function(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(
-        m19 is void Function(int x2, [List<Function> x3]) Function(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function(int x1, {List<T> x}) Function(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, {List<T> x}) Function(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is void Function(int x1, {List<T> x}) Function(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(A x) Function(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(A x) Function(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<Function> Function<A>(A x) Function(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// Function<A>(List<A> x) Function(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    Function<A>(List<A> x) Function(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is Function<A>(List<A> x) Function(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// int Function(B x) Function<B extends core.int>(int x)
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    int Function(B x) Function<B extends core.int>(int x) l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is int Function(B x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U21().runTests();
-  new U21<int>(tIsInt: true).runTests();
-  new U21<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type22_test.dart b/tests/language_2/function_type/function_type22_test.dart
deleted file mode 100644
index f4df66f10d7..00000000000
--- a/tests/language_2/function_type/function_type22_test.dart
+++ /dev/null
@@ -1,938 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(List<Function> x);
-typedef F1<T> = List<Function> Function(int y, {int x});
-typedef F2<T> = core.List<core.int> Function(int y, {List<T> x});
-typedef F3<T> = Function(int x0, {core.List<core.int> x});
-typedef F4<T> = core.List<core.int> Function<A>(A x);
-typedef F5<T> = int Function(int y, [Function x])
-    Function<B extends core.int>();
-typedef F6<T> = int Function(int x2, [core.List<core.int> x3])
-    Function<B extends core.int>();
-typedef F7<T> = Function Function({int x}) Function<B extends core.int>();
-typedef F8<T> = Function Function(core.List<core.int> x)
-    Function<B extends core.int>();
-typedef F9<T> = List<Function> Function(int x1, [int x])
-    Function<B extends core.int>();
-typedef F10<T> = List<Function> Function([List<Function> x1])
-    Function<B extends core.int>();
-typedef F11<T> = List<Function> Function({List<T> x})
-    Function<B extends core.int>();
-typedef F12<T> = core.List<core.int> Function(int y, {Function x})
-    Function<B extends core.int>();
-typedef F13<T> = core.List<core.int> Function(int x1, [List<T> x])
-    Function<B extends core.int>();
-typedef F14<T> = List<T> Function(Function x1) Function<B extends core.int>();
-typedef F15<T> = List<T> Function(int x, [core.List<core.int> x1])
-    Function<B extends core.int>();
-typedef F16<T> = Function(int x1, {int x}) Function<B extends core.int>();
-typedef F17<T> = Function([core.List<core.int> x])
-    Function<B extends core.int>();
-typedef F18<T> = void Function(int y, [int x]) Function<B extends core.int>();
-typedef F19<T> = void Function(int x2, [List<Function> x3])
-    Function<B extends core.int>();
-typedef F20<T> = void Function(int x1, {List<T> x})
-    Function<B extends core.int>();
-typedef F21<T> = List<Function> Function<A>(A x) Function<B extends core.int>();
-typedef F22<T> = Function<A>(List<A> x) Function<B extends core.int>();
-typedef F23<T> = Function Function(B x) Function<B extends core.int>();
-
-int f0(List<Function> x) => null;
-List<Function> f1(int y, {int x}) => null;
-core.List<core.int> f2(int y, {List<int> x}) => null;
-f3(int x0, {core.List<core.int> x}) => null;
-core.List<core.int> f4<A>(A x) => null;
-int Function(int y, [Function x]) f5<B extends core.int>() => null;
-int Function(int x0, [core.List<core.int> x1]) f6<B extends core.int>() => null;
-Function Function({int x}) f7<B extends core.int>() => null;
-Function Function(core.List<core.int> x) f8<B extends core.int>() => null;
-List<Function> Function(int x0, [int x]) f9<B extends core.int>() => null;
-List<Function> Function([List<Function> x0]) f10<B extends core.int>() => null;
-List<Function> Function({List<int> x}) f11<B extends core.int>() => null;
-core.List<core.int> Function(int y, {Function x}) f12<B extends core.int>() =>
-    null;
-core.List<core.int> Function(int x0, [List<int> x]) f13<B extends core.int>() =>
-    null;
-List<int> Function(Function x0) f14<B extends core.int>() => null;
-List<int> Function(int x, [core.List<core.int> x0]) f15<B extends core.int>() =>
-    null;
-Function(int x0, {int x}) f16<B extends core.int>() => null;
-Function([core.List<core.int> x]) f17<B extends core.int>() => null;
-void Function(int y, [int x]) f18<B extends core.int>() => null;
-void Function(int x0, [List<Function> x1]) f19<B extends core.int>() => null;
-void Function(int x0, {List<int> x}) f20<B extends core.int>() => null;
-List<Function> Function<A>(A x) f21<B extends core.int>() => null;
-Function<A>(List<A> x) f22<B extends core.int>() => null;
-Function Function(B x) f23<B extends core.int>() => null;
-
-class U22<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(List<Function> x) x0;
-  List<Function> Function(int y, {int x}) x1;
-  core.List<core.int> Function(int y, {List<T> x}) x2;
-  Function(int x0, {core.List<core.int> x}) x3;
-  core.List<core.int> Function<A>(A x) x4;
-  int Function(int y, [Function x]) Function<B extends core.int>() x5;
-  int Function(int x2, [core.List<core.int> x3]) Function<B extends core.int>()
-      x6;
-  Function Function({int x}) Function<B extends core.int>() x7;
-  Function Function(core.List<core.int> x) Function<B extends core.int>() x8;
-  List<Function> Function(int x1, [int x]) Function<B extends core.int>() x9;
-  List<Function> Function([List<Function> x1]) Function<B extends core.int>()
-      x10;
-  List<Function> Function({List<T> x}) Function<B extends core.int>() x11;
-  core.List<core.int> Function(int y, {Function x})
-      Function<B extends core.int>() x12;
-  core.List<core.int> Function(int x1, [List<T> x])
-      Function<B extends core.int>() x13;
-  List<T> Function(Function x1) Function<B extends core.int>() x14;
-  List<T> Function(int x, [core.List<core.int> x1])
-      Function<B extends core.int>() x15;
-  Function(int x1, {int x}) Function<B extends core.int>() x16;
-  Function([core.List<core.int> x]) Function<B extends core.int>() x17;
-  void Function(int y, [int x]) Function<B extends core.int>() x18;
-  void Function(int x2, [List<Function> x3]) Function<B extends core.int>() x19;
-  void Function(int x1, {List<T> x}) Function<B extends core.int>() x20;
-  List<Function> Function<A>(A x) Function<B extends core.int>() x21;
-  Function<A>(List<A> x) Function<B extends core.int>() x22;
-  Function Function(B x) Function<B extends core.int>() x23;
-
-  U22({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(List<Function> x) => null;
-  List<Function> m1(int y, {int x}) => null;
-  core.List<core.int> m2(int y, {List<T> x}) => null;
-  m3(int x0, {core.List<core.int> x}) => null;
-  core.List<core.int> m4<A>(A x) => null;
-  int Function(int y, [Function x]) m5<B extends core.int>() => null;
-  int Function(int x0, [core.List<core.int> x1]) m6<B extends core.int>() =>
-      null;
-  Function Function({int x}) m7<B extends core.int>() => null;
-  Function Function(core.List<core.int> x) m8<B extends core.int>() => null;
-  List<Function> Function(int x0, [int x]) m9<B extends core.int>() => null;
-  List<Function> Function([List<Function> x0]) m10<B extends core.int>() =>
-      null;
-  List<Function> Function({List<T> x}) m11<B extends core.int>() => null;
-  core.List<core.int> Function(int y, {Function x}) m12<B extends core.int>() =>
-      null;
-  core.List<core.int> Function(int x0, [List<T> x]) m13<B extends core.int>() =>
-      null;
-  List<T> Function(Function x0) m14<B extends core.int>() => null;
-  List<T> Function(int x, [core.List<core.int> x0]) m15<B extends core.int>() =>
-      null;
-  Function(int x0, {int x}) m16<B extends core.int>() => null;
-  Function([core.List<core.int> x]) m17<B extends core.int>() => null;
-  void Function(int y, [int x]) m18<B extends core.int>() => null;
-  void Function(int x0, [List<Function> x1]) m19<B extends core.int>() => null;
-  void Function(int x0, {List<T> x}) m20<B extends core.int>() => null;
-  List<Function> Function<A>(A x) m21<B extends core.int>() => null;
-  Function<A>(List<A> x) m22<B extends core.int>() => null;
-  Function Function(B x) m23<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(List<Function> x)
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(List<Function> x) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(List<Function> x));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(int y, {int x})
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, {int x}) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(int y, {int x}));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// core.List<core.int> Function(int y, {List<T> x})
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, {List<T> x}) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is core.List<core.int> Function(int y, {List<T> x}));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m2 is F2<int>);
-      Expect.equals(true, m2 is F2<bool>);
-      Expect.equals(true, confuse(m2) is F2<int>);
-      Expect.equals(true, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// Function(int x0, {core.List<core.int> x})
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function(int x0, {core.List<core.int> x}) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function(int x0, {core.List<core.int> x}));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// core.List<core.int> Function<A>(A x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(A x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is core.List<core.int> Function<A>(A x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int y, [Function x]) Function<B extends core.int>()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, [Function x]) Function<B extends core.int>() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(
-        m5 is int Function(int y, [Function x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x2, [core.List<core.int> x3]) Function<B extends core.int>()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x2, [core.List<core.int> x3])
-        Function<B extends core.int>() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int x2, [core.List<core.int> x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function({int x}) Function<B extends core.int>()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function({int x}) Function<B extends core.int>() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(
-        m7 is Function Function({int x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(core.List<core.int> x) Function<B extends core.int>()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(core.List<core.int> x) Function<B extends core.int>() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(core.List<core.int> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int x1, [int x]) Function<B extends core.int>()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, [int x]) Function<B extends core.int>() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int x1, [int x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function([List<Function> x1]) Function<B extends core.int>()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([List<Function> x1]) Function<B extends core.int>()
-        l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function([List<Function> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function({List<T> x}) Function<B extends core.int>()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function({List<T> x}) Function<B extends core.int>() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is List<Function> Function({List<T> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int y, {Function x}) Function<B extends core.int>()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, {Function x})
-        Function<B extends core.int>() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int y, {Function x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int x1, [List<T> x]) Function<B extends core.int>()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, [List<T> x])
-        Function<B extends core.int>() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(int x1, [List<T> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(Function x1) Function<B extends core.int>()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(Function x1) Function<B extends core.int>() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(
-        m14 is List<T> Function(Function x1) Function<B extends core.int>());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x, [core.List<core.int> x1]) Function<B extends core.int>()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x, [core.List<core.int> x1])
-        Function<B extends core.int>() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x, [core.List<core.int> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x1, {int x}) Function<B extends core.int>()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, {int x}) Function<B extends core.int>() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function(int x1, {int x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function([core.List<core.int> x]) Function<B extends core.int>()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function([core.List<core.int> x]) Function<B extends core.int>() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function([core.List<core.int> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int y, [int x]) Function<B extends core.int>()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, [int x]) Function<B extends core.int>() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(
-        m18 is void Function(int y, [int x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x2, [List<Function> x3]) Function<B extends core.int>()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x2, [List<Function> x3]) Function<B extends core.int>()
-        l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int x2, [List<Function> x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function(int x1, {List<T> x}) Function<B extends core.int>()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, {List<T> x}) Function<B extends core.int>() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is void Function(int x1, {List<T> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(A x) Function<B extends core.int>()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(A x) Function<B extends core.int>() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(
-        m21 is List<Function> Function<A>(A x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// Function<A>(List<A> x) Function<B extends core.int>()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    Function<A>(List<A> x) Function<B extends core.int>() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is Function<A>(List<A> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// Function Function(B x) Function<B extends core.int>()
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    Function Function(B x) Function<B extends core.int>() l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is Function Function(B x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U22().runTests();
-  new U22<int>(tIsInt: true).runTests();
-  new U22<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type23_test.dart b/tests/language_2/function_type/function_type23_test.dart
deleted file mode 100644
index 9d8ea27511a..00000000000
--- a/tests/language_2/function_type/function_type23_test.dart
+++ /dev/null
@@ -1,937 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function([List<Function> x]);
-typedef F1<T> = List<Function> Function(Function x);
-typedef F2<T> = core.List<core.int> Function();
-typedef F3<T> = Function(int y, {core.List<core.int> x});
-typedef F4<T> = core.List<core.int> Function<A>(List<A> x);
-typedef F5<T> = int Function(int y, [Function x]) Function<B extends core.int>(
-    int x);
-typedef F6<T> = int Function(int x2, [core.List<core.int> x3])
-    Function<B extends core.int>(int x);
-typedef F7<T> = Function Function({int x}) Function<B extends core.int>(int x);
-typedef F8<T> = Function Function(core.List<core.int> x)
-    Function<B extends core.int>(int x);
-typedef F9<T> = List<Function> Function(int x1, [int x])
-    Function<B extends core.int>(int x);
-typedef F10<T> = List<Function> Function([List<Function> x1])
-    Function<B extends core.int>(int x);
-typedef F11<T> = List<Function> Function({List<T> x})
-    Function<B extends core.int>(int x);
-typedef F12<T> = core.List<core.int> Function(int y, {Function x})
-    Function<B extends core.int>(int x);
-typedef F13<T> = core.List<core.int> Function(int x1, [List<T> x])
-    Function<B extends core.int>(int x);
-typedef F14<T> = List<T> Function(Function x1) Function<B extends core.int>(
-    int x);
-typedef F15<T> = List<T> Function(int x, [core.List<core.int> x1])
-    Function<B extends core.int>(int x);
-typedef F16<T> = Function(int x1, {int x}) Function<B extends core.int>(int x);
-typedef F17<T> = Function([core.List<core.int> x]) Function<B extends core.int>(
-    int x);
-typedef F18<T> = void Function(int y, [int x]) Function<B extends core.int>(
-    int x);
-typedef F19<T> = void Function(int x2, [List<Function> x3])
-    Function<B extends core.int>(int x);
-typedef F20<T> = void Function(int x1, {List<T> x})
-    Function<B extends core.int>(int x);
-typedef F21<T> = List<Function> Function<A>(A x) Function<B extends core.int>(
-    int x);
-typedef F22<T> = Function<A>(List<A> x) Function<B extends core.int>(int x);
-typedef F23<T> = Function Function(B x) Function<B extends core.int>(int x);
-
-int f0([List<Function> x]) => null;
-List<Function> f1(Function x) => null;
-core.List<core.int> f2() => null;
-f3(int y, {core.List<core.int> x}) => null;
-core.List<core.int> f4<A>(List<A> x) => null;
-int Function(int y, [Function x]) f5<B extends core.int>(int x) => null;
-int Function(int x0, [core.List<core.int> x1]) f6<B extends core.int>(int x) =>
-    null;
-Function Function({int x}) f7<B extends core.int>(int x) => null;
-Function Function(core.List<core.int> x) f8<B extends core.int>(int x) => null;
-List<Function> Function(int x0, [int x]) f9<B extends core.int>(int x) => null;
-List<Function> Function([List<Function> x0]) f10<B extends core.int>(int x) =>
-    null;
-List<Function> Function({List<int> x}) f11<B extends core.int>(int x) => null;
-core.List<core.int> Function(int y, {Function x}) f12<B extends core.int>(
-        int x) =>
-    null;
-core.List<core.int> Function(int x0, [List<int> x]) f13<B extends core.int>(
-        int x) =>
-    null;
-List<int> Function(Function x0) f14<B extends core.int>(int x) => null;
-List<int> Function(int x, [core.List<core.int> x0]) f15<B extends core.int>(
-        int x) =>
-    null;
-Function(int x0, {int x}) f16<B extends core.int>(int x) => null;
-Function([core.List<core.int> x]) f17<B extends core.int>(int x) => null;
-void Function(int y, [int x]) f18<B extends core.int>(int x) => null;
-void Function(int x0, [List<Function> x1]) f19<B extends core.int>(int x) =>
-    null;
-void Function(int x0, {List<int> x}) f20<B extends core.int>(int x) => null;
-List<Function> Function<A>(A x) f21<B extends core.int>(int x) => null;
-Function<A>(List<A> x) f22<B extends core.int>(int x) => null;
-Function Function(B x) f23<B extends core.int>(int x) => null;
-
-class U23<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function([List<Function> x]) x0;
-  List<Function> Function(Function x) x1;
-  core.List<core.int> Function() x2;
-  Function(int y, {core.List<core.int> x}) x3;
-  core.List<core.int> Function<A>(List<A> x) x4;
-  int Function(int y, [Function x]) Function<B extends core.int>(int x) x5;
-  int Function(int x2, [core.List<core.int> x3]) Function<B extends core.int>(
-      int x) x6;
-  Function Function({int x}) Function<B extends core.int>(int x) x7;
-  Function Function(core.List<core.int> x) Function<B extends core.int>(int x)
-      x8;
-  List<Function> Function(int x1, [int x]) Function<B extends core.int>(int x)
-      x9;
-  List<Function> Function([List<Function> x1]) Function<B extends core.int>(
-      int x) x10;
-  List<Function> Function({List<T> x}) Function<B extends core.int>(int x) x11;
-  core.List<core.int> Function(int y, {Function x})
-      Function<B extends core.int>(int x) x12;
-  core.List<core.int> Function(int x1, [List<T> x])
-      Function<B extends core.int>(int x) x13;
-  List<T> Function(Function x1) Function<B extends core.int>(int x) x14;
-  List<T> Function(int x, [core.List<core.int> x1])
-      Function<B extends core.int>(int x) x15;
-  Function(int x1, {int x}) Function<B extends core.int>(int x) x16;
-  Function([core.List<core.int> x]) Function<B extends core.int>(int x) x17;
-  void Function(int y, [int x]) Function<B extends core.int>(int x) x18;
-  void Function(int x2, [List<Function> x3]) Function<B extends core.int>(int x)
-      x19;
-  void Function(int x1, {List<T> x}) Function<B extends core.int>(int x) x20;
-  List<Function> Function<A>(A x) Function<B extends core.int>(int x) x21;
-  Function<A>(List<A> x) Function<B extends core.int>(int x) x22;
-  Function Function(B x) Function<B extends core.int>(int x) x23;
-
-  U23({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0([List<Function> x]) => null;
-  List<Function> m1(Function x) => null;
-  core.List<core.int> m2() => null;
-  m3(int y, {core.List<core.int> x}) => null;
-  core.List<core.int> m4<A>(List<A> x) => null;
-  int Function(int y, [Function x]) m5<B extends core.int>(int x) => null;
-  int Function(int x0, [core.List<core.int> x1]) m6<B extends core.int>(
-          int x) =>
-      null;
-  Function Function({int x}) m7<B extends core.int>(int x) => null;
-  Function Function(core.List<core.int> x) m8<B extends core.int>(int x) =>
-      null;
-  List<Function> Function(int x0, [int x]) m9<B extends core.int>(int x) =>
-      null;
-  List<Function> Function([List<Function> x0]) m10<B extends core.int>(int x) =>
-      null;
-  List<Function> Function({List<T> x}) m11<B extends core.int>(int x) => null;
-  core.List<core.int> Function(int y, {Function x}) m12<B extends core.int>(
-          int x) =>
-      null;
-  core.List<core.int> Function(int x0, [List<T> x]) m13<B extends core.int>(
-          int x) =>
-      null;
-  List<T> Function(Function x0) m14<B extends core.int>(int x) => null;
-  List<T> Function(int x, [core.List<core.int> x0]) m15<B extends core.int>(
-          int x) =>
-      null;
-  Function(int x0, {int x}) m16<B extends core.int>(int x) => null;
-  Function([core.List<core.int> x]) m17<B extends core.int>(int x) => null;
-  void Function(int y, [int x]) m18<B extends core.int>(int x) => null;
-  void Function(int x0, [List<Function> x1]) m19<B extends core.int>(int x) =>
-      null;
-  void Function(int x0, {List<T> x}) m20<B extends core.int>(int x) => null;
-  List<Function> Function<A>(A x) m21<B extends core.int>(int x) => null;
-  Function<A>(List<A> x) m22<B extends core.int>(int x) => null;
-  Function Function(B x) m23<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function([List<Function> x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function([List<Function> x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function([List<Function> x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(Function x)
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(Function x) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(Function x));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// core.List<core.int> Function()
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function() l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is core.List<core.int> Function());
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// Function(int y, {core.List<core.int> x})
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function(int y, {core.List<core.int> x}) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function(int y, {core.List<core.int> x}));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// core.List<core.int> Function<A>(List<A> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(List<A> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is core.List<core.int> Function<A>(List<A> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int y, [Function x]) Function<B extends core.int>(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, [Function x]) Function<B extends core.int>(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int y, [Function x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x2, [core.List<core.int> x3]) Function<B extends core.int>(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x2, [core.List<core.int> x3]) Function<B extends core.int>(
-        int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int x2, [core.List<core.int> x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function({int x}) Function<B extends core.int>(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function({int x}) Function<B extends core.int>(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(
-        m7 is Function Function({int x}) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(core.List<core.int> x) Function<B extends core.int>(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(core.List<core.int> x) Function<B extends core.int>(int x)
-        l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(core.List<core.int> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int x1, [int x]) Function<B extends core.int>(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, [int x]) Function<B extends core.int>(int x)
-        l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int x1, [int x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function([List<Function> x1]) Function<B extends core.int>(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([List<Function> x1]) Function<B extends core.int>(
-        int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function([List<Function> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function({List<T> x}) Function<B extends core.int>(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function({List<T> x}) Function<B extends core.int>(int x)
-        l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is List<Function> Function({List<T> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int y, {Function x}) Function<B extends core.int>(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, {Function x})
-        Function<B extends core.int>(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int y, {Function x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int x1, [List<T> x]) Function<B extends core.int>(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, [List<T> x])
-        Function<B extends core.int>(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(int x1, [List<T> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(Function x1) Function<B extends core.int>(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(Function x1) Function<B extends core.int>(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(Function x1)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x, [core.List<core.int> x1]) Function<B extends core.int>(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x, [core.List<core.int> x1])
-        Function<B extends core.int>(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x, [core.List<core.int> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x1, {int x}) Function<B extends core.int>(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, {int x}) Function<B extends core.int>(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function(int x1, {int x}) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function([core.List<core.int> x]) Function<B extends core.int>(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function([core.List<core.int> x]) Function<B extends core.int>(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function([core.List<core.int> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int y, [int x]) Function<B extends core.int>(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, [int x]) Function<B extends core.int>(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int y, [int x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x2, [List<Function> x3]) Function<B extends core.int>(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x2, [List<Function> x3]) Function<B extends core.int>(
-        int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int x2, [List<Function> x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function(int x1, {List<T> x}) Function<B extends core.int>(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, {List<T> x}) Function<B extends core.int>(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is void Function(int x1, {List<T> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(A x) Function<B extends core.int>(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(A x) Function<B extends core.int>(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<Function> Function<A>(A x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// Function<A>(List<A> x) Function<B extends core.int>(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    Function<A>(List<A> x) Function<B extends core.int>(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(
-        m22 is Function<A>(List<A> x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// Function Function(B x) Function<B extends core.int>(int x)
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    Function Function(B x) Function<B extends core.int>(int x) l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(
-        m23 is Function Function(B x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U23().runTests();
-  new U23<int>(tIsInt: true).runTests();
-  new U23<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type24_test.dart b/tests/language_2/function_type/function_type24_test.dart
deleted file mode 100644
index 458c3c5d0e0..00000000000
--- a/tests/language_2/function_type/function_type24_test.dart
+++ /dev/null
@@ -1,947 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int x0, [List<Function> x]);
-typedef F1<T> = List<Function> Function([Function x]);
-typedef F2<T> = List<T> Function(int x);
-typedef F3<T> = Function(List<T> x);
-typedef F4<T> = List<T> Function<A>(int x);
-typedef F5<T> = int Function(Function x0) Function();
-typedef F6<T> = int Function(int x, [core.List<core.int> x2]) Function();
-typedef F7<T> = Function Function(int x0, {int x}) Function();
-typedef F8<T> = Function Function([core.List<core.int> x]) Function();
-typedef F9<T> = List<Function> Function(int y, [int x]) Function();
-typedef F10<T> = List<Function> Function(int x1, [List<Function> x2])
-    Function();
-typedef F11<T> = List<Function> Function(int x0, {List<T> x}) Function();
-typedef F12<T> = core.List<core.int> Function(List<Function> x) Function();
-typedef F13<T> = core.List<core.int> Function(int y, [List<T> x]) Function();
-typedef F14<T> = List<T> Function([Function x1]) Function();
-typedef F15<T> = List<T> Function({core.List<core.int> x}) Function();
-typedef F16<T> = Function(int y, {int x}) Function();
-typedef F17<T> = Function(int x0, [core.List<core.int> x]) Function();
-typedef F18<T> = void Function(int x0) Function();
-typedef F19<T> = void Function(int x, [List<Function> x2]) Function();
-typedef F20<T> = void Function(int y, {List<T> x}) Function();
-typedef F21<T> = List<Function> Function<A>(List<A> x) Function();
-typedef F22<T> = A Function<A>(int x) Function();
-typedef F23<T> = List<Function> Function(B x) Function<B extends core.int>();
-
-int f0(int x0, [List<Function> x]) => null;
-List<Function> f1([Function x]) => null;
-List<int> f2(int x) => null;
-f3(List<int> x) => null;
-List<int> f4<A>(int x) => null;
-int Function(Function x0) f5() => null;
-int Function(int x, [core.List<core.int> x0]) f6() => null;
-Function Function(int x0, {int x}) f7() => null;
-Function Function([core.List<core.int> x]) f8() => null;
-List<Function> Function(int y, [int x]) f9() => null;
-List<Function> Function(int x0, [List<Function> x1]) f10() => null;
-List<Function> Function(int x0, {List<int> x}) f11() => null;
-core.List<core.int> Function(List<Function> x) f12() => null;
-core.List<core.int> Function(int y, [List<int> x]) f13() => null;
-List<int> Function([Function x0]) f14() => null;
-List<int> Function({core.List<core.int> x}) f15() => null;
-Function(int y, {int x}) f16() => null;
-Function(int x0, [core.List<core.int> x]) f17() => null;
-void Function(int x0) f18() => null;
-void Function(int x, [List<Function> x0]) f19() => null;
-void Function(int y, {List<int> x}) f20() => null;
-List<Function> Function<A>(List<A> x) f21() => null;
-A Function<A>(int x) f22() => null;
-List<Function> Function(B x) f23<B extends core.int>() => null;
-
-class U24<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int x0, [List<Function> x]) x0;
-  List<Function> Function([Function x]) x1;
-  List<T> Function(int x) x2;
-  Function(List<T> x) x3;
-  List<T> Function<A>(int x) x4;
-  int Function(Function x0) Function() x5;
-  int Function(int x, [core.List<core.int> x2]) Function() x6;
-  Function Function(int x0, {int x}) Function() x7;
-  Function Function([core.List<core.int> x]) Function() x8;
-  List<Function> Function(int y, [int x]) Function() x9;
-  List<Function> Function(int x1, [List<Function> x2]) Function() x10;
-  List<Function> Function(int x0, {List<T> x}) Function() x11;
-  core.List<core.int> Function(List<Function> x) Function() x12;
-  core.List<core.int> Function(int y, [List<T> x]) Function() x13;
-  List<T> Function([Function x1]) Function() x14;
-  List<T> Function({core.List<core.int> x}) Function() x15;
-  Function(int y, {int x}) Function() x16;
-  Function(int x0, [core.List<core.int> x]) Function() x17;
-  void Function(int x0) Function() x18;
-  void Function(int x, [List<Function> x2]) Function() x19;
-  void Function(int y, {List<T> x}) Function() x20;
-  List<Function> Function<A>(List<A> x) Function() x21;
-  A Function<A>(int x) Function() x22;
-  List<Function> Function(B x) Function<B extends core.int>() x23;
-
-  U24({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int x0, [List<Function> x]) => null;
-  List<Function> m1([Function x]) => null;
-  List<T> m2(int x) => null;
-  m3(List<T> x) => null;
-  List<T> m4<A>(int x) => null;
-  int Function(Function x0) m5() => null;
-  int Function(int x, [core.List<core.int> x0]) m6() => null;
-  Function Function(int x0, {int x}) m7() => null;
-  Function Function([core.List<core.int> x]) m8() => null;
-  List<Function> Function(int y, [int x]) m9() => null;
-  List<Function> Function(int x0, [List<Function> x1]) m10() => null;
-  List<Function> Function(int x0, {List<T> x}) m11() => null;
-  core.List<core.int> Function(List<Function> x) m12() => null;
-  core.List<core.int> Function(int y, [List<T> x]) m13() => null;
-  List<T> Function([Function x0]) m14() => null;
-  List<T> Function({core.List<core.int> x}) m15() => null;
-  Function(int y, {int x}) m16() => null;
-  Function(int x0, [core.List<core.int> x]) m17() => null;
-  void Function(int x0) m18() => null;
-  void Function(int x, [List<Function> x0]) m19() => null;
-  void Function(int y, {List<T> x}) m20() => null;
-  List<Function> Function<A>(List<A> x) m21() => null;
-  A Function<A>(int x) m22() => null;
-  List<Function> Function(B x) m23<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int x0, [List<Function> x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int x0, [List<Function> x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int x0, [List<Function> x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function([Function x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([Function x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function([Function x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(int x)
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int x));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// Function(List<T> x)
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function(List<T> x) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function(List<T> x));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-    // The static function has its T always set to int.
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isFalse(f3 is F3<bool>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    Expect.isFalse(confuse(f3) is F3<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        x3 = confuse(f3);
-      });
-      Expect.throws(() {
-        l3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        l3 = confuse(f3);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m3 is F3<int>);
-      Expect.equals(true, m3 is F3<bool>);
-      Expect.equals(true, confuse(m3) is F3<int>);
-      Expect.equals(true, confuse(m3) is F3<bool>);
-    }
-  }
-
-  /// List<T> Function<A>(int x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(int x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is List<T> Function<A>(int x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-    // The static function has its T always set to int.
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isFalse(f4 is F4<bool>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    Expect.isFalse(confuse(f4) is F4<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        x4 = confuse(f4);
-      });
-      Expect.throws(() {
-        l4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        l4 = confuse(f4);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m4 is F4<int>);
-      Expect.equals(tIsBool, m4 is F4<bool>);
-      Expect.equals(tIsInt, confuse(m4) is F4<int>);
-      Expect.equals(tIsBool, confuse(m4) is F4<bool>);
-    }
-  }
-
-  /// int Function(Function x0) Function()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(Function x0) Function() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(Function x0) Function());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x, [core.List<core.int> x2]) Function()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x, [core.List<core.int> x2]) Function() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is int Function(int x, [core.List<core.int> x2]) Function());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int x0, {int x}) Function()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x0, {int x}) Function() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x0, {int x}) Function());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function([core.List<core.int> x]) Function()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function([core.List<core.int> x]) Function() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function([core.List<core.int> x]) Function());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int y, [int x]) Function()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, [int x]) Function() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int y, [int x]) Function());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x1, [List<Function> x2]) Function()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, [List<Function> x2]) Function() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(
-        m10 is List<Function> Function(int x1, [List<Function> x2]) Function());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function(int x0, {List<T> x}) Function()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x0, {List<T> x}) Function() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is List<Function> Function(int x0, {List<T> x}) Function());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(List<Function> x) Function()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(List<Function> x) Function() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(
-        m12 is core.List<core.int> Function(List<Function> x) Function());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int y, [List<T> x]) Function()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, [List<T> x]) Function() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(
-        m13 is core.List<core.int> Function(int y, [List<T> x]) Function());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function([Function x1]) Function()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([Function x1]) Function() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function([Function x1]) Function());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function({core.List<core.int> x}) Function()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function({core.List<core.int> x}) Function() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function({core.List<core.int> x}) Function());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int y, {int x}) Function()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int y, {int x}) Function() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int y, {int x}) Function());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x0, [core.List<core.int> x]) Function()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x0, [core.List<core.int> x]) Function() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x0, [core.List<core.int> x]) Function());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int x0) Function()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x0) Function() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x0) Function());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x, [List<Function> x2]) Function()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x, [List<Function> x2]) Function() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int x, [List<Function> x2]) Function());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function(int y, {List<T> x}) Function()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, {List<T> x}) Function() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is void Function(int y, {List<T> x}) Function());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(List<A> x) Function()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(List<A> x) Function() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<Function> Function<A>(List<A> x) Function());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(int x) Function()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(int x) Function() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is A Function<A>(int x) Function());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// List<Function> Function(B x) Function<B extends core.int>()
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(B x) Function<B extends core.int>() l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(
-        m23 is List<Function> Function(B x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U24().runTests();
-  new U24<int>(tIsInt: true).runTests();
-  new U24<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type25_test.dart b/tests/language_2/function_type/function_type25_test.dart
deleted file mode 100644
index 567f2aa6833..00000000000
--- a/tests/language_2/function_type/function_type25_test.dart
+++ /dev/null
@@ -1,954 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int y, [List<Function> x]);
-typedef F1<T> = List<Function> Function(int x0, [Function x]);
-typedef F2<T> = List<T> Function([int x]);
-typedef F3<T> = Function([List<T> x]);
-typedef F4<T> = List<T> Function<A>(Function x);
-typedef F5<T> = int Function(Function x1) Function(int x);
-typedef F6<T> = int Function(int x, [core.List<core.int> x1]) Function(int x);
-typedef F7<T> = Function Function(int x1, {int x}) Function(int x);
-typedef F8<T> = Function Function([core.List<core.int> x]) Function(int x);
-typedef F9<T> = List<Function> Function(int y, [int x]) Function(int x);
-typedef F10<T> = List<Function> Function(int x2, [List<Function> x3]) Function(
-    int x);
-typedef F11<T> = List<Function> Function(int x1, {List<T> x}) Function(int x);
-typedef F12<T> = core.List<core.int> Function(List<Function> x) Function(int x);
-typedef F13<T> = core.List<core.int> Function(int y, [List<T> x]) Function(
-    int x);
-typedef F14<T> = List<T> Function([Function x1]) Function(int x);
-typedef F15<T> = List<T> Function({core.List<core.int> x}) Function(int x);
-typedef F16<T> = Function(int y, {int x}) Function(int x);
-typedef F17<T> = Function(int x1, [core.List<core.int> x]) Function(int x);
-typedef F18<T> = void Function(int x1) Function(int x);
-typedef F19<T> = void Function(int x, [List<Function> x1]) Function(int x);
-typedef F20<T> = void Function(int y, {List<T> x}) Function(int x);
-typedef F21<T> = List<Function> Function<A>(List<A> x) Function(int x);
-typedef F22<T> = A Function<A>(int x) Function(int x);
-typedef F23<T> = List<Function> Function(B x) Function<B extends core.int>(
-    int x);
-
-int f0(int y, [List<Function> x]) => null;
-List<Function> f1(int x0, [Function x]) => null;
-List<int> f2([int x]) => null;
-f3([List<int> x]) => null;
-List<int> f4<A>(Function x) => null;
-int Function(Function x0) f5(int x) => null;
-int Function(int x, [core.List<core.int> x0]) f6(int x) => null;
-Function Function(int x0, {int x}) f7(int x) => null;
-Function Function([core.List<core.int> x]) f8(int x) => null;
-List<Function> Function(int y, [int x]) f9(int x) => null;
-List<Function> Function(int x0, [List<Function> x1]) f10(int x) => null;
-List<Function> Function(int x0, {List<int> x}) f11(int x) => null;
-core.List<core.int> Function(List<Function> x) f12(int x) => null;
-core.List<core.int> Function(int y, [List<int> x]) f13(int x) => null;
-List<int> Function([Function x0]) f14(int x) => null;
-List<int> Function({core.List<core.int> x}) f15(int x) => null;
-Function(int y, {int x}) f16(int x) => null;
-Function(int x0, [core.List<core.int> x]) f17(int x) => null;
-void Function(int x0) f18(int x) => null;
-void Function(int x, [List<Function> x0]) f19(int x) => null;
-void Function(int y, {List<int> x}) f20(int x) => null;
-List<Function> Function<A>(List<A> x) f21(int x) => null;
-A Function<A>(int x) f22(int x) => null;
-List<Function> Function(B x) f23<B extends core.int>(int x) => null;
-
-class U25<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int y, [List<Function> x]) x0;
-  List<Function> Function(int x0, [Function x]) x1;
-  List<T> Function([int x]) x2;
-  Function([List<T> x]) x3;
-  List<T> Function<A>(Function x) x4;
-  int Function(Function x1) Function(int x) x5;
-  int Function(int x, [core.List<core.int> x1]) Function(int x) x6;
-  Function Function(int x1, {int x}) Function(int x) x7;
-  Function Function([core.List<core.int> x]) Function(int x) x8;
-  List<Function> Function(int y, [int x]) Function(int x) x9;
-  List<Function> Function(int x2, [List<Function> x3]) Function(int x) x10;
-  List<Function> Function(int x1, {List<T> x}) Function(int x) x11;
-  core.List<core.int> Function(List<Function> x) Function(int x) x12;
-  core.List<core.int> Function(int y, [List<T> x]) Function(int x) x13;
-  List<T> Function([Function x1]) Function(int x) x14;
-  List<T> Function({core.List<core.int> x}) Function(int x) x15;
-  Function(int y, {int x}) Function(int x) x16;
-  Function(int x1, [core.List<core.int> x]) Function(int x) x17;
-  void Function(int x1) Function(int x) x18;
-  void Function(int x, [List<Function> x1]) Function(int x) x19;
-  void Function(int y, {List<T> x}) Function(int x) x20;
-  List<Function> Function<A>(List<A> x) Function(int x) x21;
-  A Function<A>(int x) Function(int x) x22;
-  List<Function> Function(B x) Function<B extends core.int>(int x) x23;
-
-  U25({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int y, [List<Function> x]) => null;
-  List<Function> m1(int x0, [Function x]) => null;
-  List<T> m2([int x]) => null;
-  m3([List<T> x]) => null;
-  List<T> m4<A>(Function x) => null;
-  int Function(Function x0) m5(int x) => null;
-  int Function(int x, [core.List<core.int> x0]) m6(int x) => null;
-  Function Function(int x0, {int x}) m7(int x) => null;
-  Function Function([core.List<core.int> x]) m8(int x) => null;
-  List<Function> Function(int y, [int x]) m9(int x) => null;
-  List<Function> Function(int x0, [List<Function> x1]) m10(int x) => null;
-  List<Function> Function(int x0, {List<T> x}) m11(int x) => null;
-  core.List<core.int> Function(List<Function> x) m12(int x) => null;
-  core.List<core.int> Function(int y, [List<T> x]) m13(int x) => null;
-  List<T> Function([Function x0]) m14(int x) => null;
-  List<T> Function({core.List<core.int> x}) m15(int x) => null;
-  Function(int y, {int x}) m16(int x) => null;
-  Function(int x0, [core.List<core.int> x]) m17(int x) => null;
-  void Function(int x0) m18(int x) => null;
-  void Function(int x, [List<Function> x0]) m19(int x) => null;
-  void Function(int y, {List<T> x}) m20(int x) => null;
-  List<Function> Function<A>(List<A> x) m21(int x) => null;
-  A Function<A>(int x) m22(int x) => null;
-  List<Function> Function(B x) m23<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int y, [List<Function> x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, [List<Function> x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int y, [List<Function> x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(int x0, [Function x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x0, [Function x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(int x0, [Function x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function([int x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([int x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function([int x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// Function([List<T> x])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function([List<T> x]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function([List<T> x]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-    // The static function has its T always set to int.
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isFalse(f3 is F3<bool>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    Expect.isFalse(confuse(f3) is F3<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        x3 = confuse(f3);
-      });
-      Expect.throws(() {
-        l3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        l3 = confuse(f3);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m3 is F3<int>);
-      Expect.equals(true, m3 is F3<bool>);
-      Expect.equals(true, confuse(m3) is F3<int>);
-      Expect.equals(true, confuse(m3) is F3<bool>);
-    }
-  }
-
-  /// List<T> Function<A>(Function x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(Function x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is List<T> Function<A>(Function x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-    // The static function has its T always set to int.
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isFalse(f4 is F4<bool>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    Expect.isFalse(confuse(f4) is F4<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        x4 = confuse(f4);
-      });
-      Expect.throws(() {
-        l4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        l4 = confuse(f4);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m4 is F4<int>);
-      Expect.equals(tIsBool, m4 is F4<bool>);
-      Expect.equals(tIsInt, confuse(m4) is F4<int>);
-      Expect.equals(tIsBool, confuse(m4) is F4<bool>);
-    }
-  }
-
-  /// int Function(Function x1) Function(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(Function x1) Function(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(Function x1) Function(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x, [core.List<core.int> x1]) Function(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x, [core.List<core.int> x1]) Function(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is int Function(int x, [core.List<core.int> x1]) Function(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int x1, {int x}) Function(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, {int x}) Function(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x1, {int x}) Function(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function([core.List<core.int> x]) Function(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function([core.List<core.int> x]) Function(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(
-        m8 is Function Function([core.List<core.int> x]) Function(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int y, [int x]) Function(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, [int x]) Function(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(
-        m9 is List<Function> Function(int y, [int x]) Function(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x2, [List<Function> x3]) Function(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x2, [List<Function> x3]) Function(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x2, [List<Function> x3])
-        Function(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function(int x1, {List<T> x}) Function(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, {List<T> x}) Function(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is List<Function> Function(int x1, {List<T> x}) Function(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(List<Function> x) Function(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(List<Function> x) Function(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(
-        m12 is core.List<core.int> Function(List<Function> x) Function(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int y, [List<T> x]) Function(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, [List<T> x]) Function(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(int y, [List<T> x])
-        Function(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function([Function x1]) Function(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([Function x1]) Function(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function([Function x1]) Function(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function({core.List<core.int> x}) Function(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function({core.List<core.int> x}) Function(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(
-        m15 is List<T> Function({core.List<core.int> x}) Function(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int y, {int x}) Function(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int y, {int x}) Function(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int y, {int x}) Function(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x1, [core.List<core.int> x]) Function(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, [core.List<core.int> x]) Function(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(
-        m17 is Function(int x1, [core.List<core.int> x]) Function(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int x1) Function(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1) Function(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x1) Function(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x, [List<Function> x1]) Function(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x, [List<Function> x1]) Function(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(
-        m19 is void Function(int x, [List<Function> x1]) Function(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function(int y, {List<T> x}) Function(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, {List<T> x}) Function(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is void Function(int y, {List<T> x}) Function(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(List<A> x) Function(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(List<A> x) Function(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<Function> Function<A>(List<A> x) Function(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(int x) Function(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(int x) Function(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is A Function<A>(int x) Function(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// List<Function> Function(B x) Function<B extends core.int>(int x)
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(B x) Function<B extends core.int>(int x) l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is List<Function> Function(B x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U25().runTests();
-  new U25<int>(tIsInt: true).runTests();
-  new U25<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type26_test.dart b/tests/language_2/function_type/function_type26_test.dart
deleted file mode 100644
index 8c5f5cecb8a..00000000000
--- a/tests/language_2/function_type/function_type26_test.dart
+++ /dev/null
@@ -1,994 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(List<Function> x0);
-typedef F1<T> = List<Function> Function(int y, [Function x]);
-typedef F2<T> = List<T> Function(int x0, [int x]);
-typedef F3<T> = Function(int x0, [List<T> x]);
-typedef F4<T> = List<T> Function<A>(List<Function> x);
-typedef F5<T> = int Function(Function x1) Function<B extends core.int>();
-typedef F6<T> = int Function(int x, [core.List<core.int> x1])
-    Function<B extends core.int>();
-typedef F7<T> = Function Function(int x1, {int x})
-    Function<B extends core.int>();
-typedef F8<T> = Function Function([core.List<core.int> x])
-    Function<B extends core.int>();
-typedef F9<T> = List<Function> Function(int y, [int x])
-    Function<B extends core.int>();
-typedef F10<T> = List<Function> Function(int x2, [List<Function> x3])
-    Function<B extends core.int>();
-typedef F11<T> = List<Function> Function(int x1, {List<T> x})
-    Function<B extends core.int>();
-typedef F12<T> = core.List<core.int> Function(List<Function> x)
-    Function<B extends core.int>();
-typedef F13<T> = core.List<core.int> Function(int y, [List<T> x])
-    Function<B extends core.int>();
-typedef F14<T> = List<T> Function([Function x1]) Function<B extends core.int>();
-typedef F15<T> = List<T> Function({core.List<core.int> x})
-    Function<B extends core.int>();
-typedef F16<T> = Function(int y, {int x}) Function<B extends core.int>();
-typedef F17<T> = Function(int x1, [core.List<core.int> x])
-    Function<B extends core.int>();
-typedef F18<T> = void Function(int x1) Function<B extends core.int>();
-typedef F19<T> = void Function(int x, [List<Function> x1])
-    Function<B extends core.int>();
-typedef F20<T> = void Function(int y, {List<T> x})
-    Function<B extends core.int>();
-typedef F21<T> = List<Function> Function<A>(List<A> x)
-    Function<B extends core.int>();
-typedef F22<T> = A Function<A>(int x) Function<B extends core.int>();
-typedef F23<T> = core.List<core.int> Function(B x)
-    Function<B extends core.int>();
-
-int f0(List<Function> x0) => null;
-List<Function> f1(int y, [Function x]) => null;
-List<int> f2(int x0, [int x]) => null;
-f3(int x0, [List<int> x]) => null;
-List<int> f4<A>(List<Function> x) => null;
-int Function(Function x0) f5<B extends core.int>() => null;
-int Function(int x, [core.List<core.int> x0]) f6<B extends core.int>() => null;
-Function Function(int x0, {int x}) f7<B extends core.int>() => null;
-Function Function([core.List<core.int> x]) f8<B extends core.int>() => null;
-List<Function> Function(int y, [int x]) f9<B extends core.int>() => null;
-List<Function> Function(int x0, [List<Function> x1])
-    f10<B extends core.int>() => null;
-List<Function> Function(int x0, {List<int> x}) f11<B extends core.int>() =>
-    null;
-core.List<core.int> Function(List<Function> x) f12<B extends core.int>() =>
-    null;
-core.List<core.int> Function(int y, [List<int> x]) f13<B extends core.int>() =>
-    null;
-List<int> Function([Function x0]) f14<B extends core.int>() => null;
-List<int> Function({core.List<core.int> x}) f15<B extends core.int>() => null;
-Function(int y, {int x}) f16<B extends core.int>() => null;
-Function(int x0, [core.List<core.int> x]) f17<B extends core.int>() => null;
-void Function(int x0) f18<B extends core.int>() => null;
-void Function(int x, [List<Function> x0]) f19<B extends core.int>() => null;
-void Function(int y, {List<int> x}) f20<B extends core.int>() => null;
-List<Function> Function<A>(List<A> x) f21<B extends core.int>() => null;
-A Function<A>(int x) f22<B extends core.int>() => null;
-core.List<core.int> Function(B x) f23<B extends core.int>() => null;
-
-class U26<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(List<Function> x0) x0;
-  List<Function> Function(int y, [Function x]) x1;
-  List<T> Function(int x0, [int x]) x2;
-  Function(int x0, [List<T> x]) x3;
-  List<T> Function<A>(List<Function> x) x4;
-  int Function(Function x1) Function<B extends core.int>() x5;
-  int Function(int x, [core.List<core.int> x1]) Function<B extends core.int>()
-      x6;
-  Function Function(int x1, {int x}) Function<B extends core.int>() x7;
-  Function Function([core.List<core.int> x]) Function<B extends core.int>() x8;
-  List<Function> Function(int y, [int x]) Function<B extends core.int>() x9;
-  List<Function> Function(int x2, [List<Function> x3])
-      Function<B extends core.int>() x10;
-  List<Function> Function(int x1, {List<T> x}) Function<B extends core.int>()
-      x11;
-  core.List<core.int> Function(List<Function> x) Function<B extends core.int>()
-      x12;
-  core.List<core.int> Function(int y, [List<T> x])
-      Function<B extends core.int>() x13;
-  List<T> Function([Function x1]) Function<B extends core.int>() x14;
-  List<T> Function({core.List<core.int> x}) Function<B extends core.int>() x15;
-  Function(int y, {int x}) Function<B extends core.int>() x16;
-  Function(int x1, [core.List<core.int> x]) Function<B extends core.int>() x17;
-  void Function(int x1) Function<B extends core.int>() x18;
-  void Function(int x, [List<Function> x1]) Function<B extends core.int>() x19;
-  void Function(int y, {List<T> x}) Function<B extends core.int>() x20;
-  List<Function> Function<A>(List<A> x) Function<B extends core.int>() x21;
-  A Function<A>(int x) Function<B extends core.int>() x22;
-  core.List<core.int> Function(B x) Function<B extends core.int>() x23;
-
-  U26({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(List<Function> x0) => null;
-  List<Function> m1(int y, [Function x]) => null;
-  List<T> m2(int x0, [int x]) => null;
-  m3(int x0, [List<T> x]) => null;
-  List<T> m4<A>(List<Function> x) => null;
-  int Function(Function x0) m5<B extends core.int>() => null;
-  int Function(int x, [core.List<core.int> x0]) m6<B extends core.int>() =>
-      null;
-  Function Function(int x0, {int x}) m7<B extends core.int>() => null;
-  Function Function([core.List<core.int> x]) m8<B extends core.int>() => null;
-  List<Function> Function(int y, [int x]) m9<B extends core.int>() => null;
-  List<Function> Function(int x0, [List<Function> x1])
-      m10<B extends core.int>() => null;
-  List<Function> Function(int x0, {List<T> x}) m11<B extends core.int>() =>
-      null;
-  core.List<core.int> Function(List<Function> x) m12<B extends core.int>() =>
-      null;
-  core.List<core.int> Function(int y, [List<T> x]) m13<B extends core.int>() =>
-      null;
-  List<T> Function([Function x0]) m14<B extends core.int>() => null;
-  List<T> Function({core.List<core.int> x}) m15<B extends core.int>() => null;
-  Function(int y, {int x}) m16<B extends core.int>() => null;
-  Function(int x0, [core.List<core.int> x]) m17<B extends core.int>() => null;
-  void Function(int x0) m18<B extends core.int>() => null;
-  void Function(int x, [List<Function> x0]) m19<B extends core.int>() => null;
-  void Function(int y, {List<T> x}) m20<B extends core.int>() => null;
-  List<Function> Function<A>(List<A> x) m21<B extends core.int>() => null;
-  A Function<A>(int x) m22<B extends core.int>() => null;
-  core.List<core.int> Function(B x) m23<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(List<Function> x0)
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(List<Function> x0) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(List<Function> x0));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(int y, [Function x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, [Function x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(int y, [Function x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(int x0, [int x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x0, [int x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int x0, [int x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// Function(int x0, [List<T> x])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function(int x0, [List<T> x]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function(int x0, [List<T> x]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-    // The static function has its T always set to int.
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isFalse(f3 is F3<bool>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    Expect.isFalse(confuse(f3) is F3<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        x3 = confuse(f3);
-      });
-      Expect.throws(() {
-        l3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        l3 = confuse(f3);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m3 is F3<int>);
-      Expect.equals(true, m3 is F3<bool>);
-      Expect.equals(true, confuse(m3) is F3<int>);
-      Expect.equals(true, confuse(m3) is F3<bool>);
-    }
-  }
-
-  /// List<T> Function<A>(List<Function> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(List<Function> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is List<T> Function<A>(List<Function> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-    // The static function has its T always set to int.
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isFalse(f4 is F4<bool>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    Expect.isFalse(confuse(f4) is F4<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        x4 = confuse(f4);
-      });
-      Expect.throws(() {
-        l4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        l4 = confuse(f4);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m4 is F4<int>);
-      Expect.equals(tIsBool, m4 is F4<bool>);
-      Expect.equals(tIsInt, confuse(m4) is F4<int>);
-      Expect.equals(tIsBool, confuse(m4) is F4<bool>);
-    }
-  }
-
-  /// int Function(Function x1) Function<B extends core.int>()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(Function x1) Function<B extends core.int>() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(
-        m5 is int Function(Function x1) Function<B extends core.int>());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x, [core.List<core.int> x1]) Function<B extends core.int>()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x, [core.List<core.int> x1]) Function<B extends core.int>()
-        l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int x, [core.List<core.int> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int x1, {int x}) Function<B extends core.int>()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, {int x}) Function<B extends core.int>() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x1, {int x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function([core.List<core.int> x]) Function<B extends core.int>()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function([core.List<core.int> x]) Function<B extends core.int>()
-        l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function([core.List<core.int> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int y, [int x]) Function<B extends core.int>()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, [int x]) Function<B extends core.int>() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int y, [int x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x2, [List<Function> x3]) Function<B extends core.int>()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x2, [List<Function> x3])
-        Function<B extends core.int>() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x2, [List<Function> x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function(int x1, {List<T> x}) Function<B extends core.int>()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, {List<T> x}) Function<B extends core.int>()
-        l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is List<Function> Function(int x1, {List<T> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(List<Function> x) Function<B extends core.int>()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(List<Function> x)
-        Function<B extends core.int>() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(List<Function> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int y, [List<T> x]) Function<B extends core.int>()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, [List<T> x])
-        Function<B extends core.int>() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(int y, [List<T> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function([Function x1]) Function<B extends core.int>()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([Function x1]) Function<B extends core.int>() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(
-        m14 is List<T> Function([Function x1]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function({core.List<core.int> x}) Function<B extends core.int>()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function({core.List<core.int> x}) Function<B extends core.int>()
-        l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function({core.List<core.int> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int y, {int x}) Function<B extends core.int>()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int y, {int x}) Function<B extends core.int>() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function(int y, {int x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x1, [core.List<core.int> x]) Function<B extends core.int>()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, [core.List<core.int> x]) Function<B extends core.int>()
-        l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x1, [core.List<core.int> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int x1) Function<B extends core.int>()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1) Function<B extends core.int>() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x1) Function<B extends core.int>());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x, [List<Function> x1]) Function<B extends core.int>()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x, [List<Function> x1]) Function<B extends core.int>()
-        l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int x, [List<Function> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function(int y, {List<T> x}) Function<B extends core.int>()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, {List<T> x}) Function<B extends core.int>() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is void Function(int y, {List<T> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(List<A> x) Function<B extends core.int>()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(List<A> x) Function<B extends core.int>() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<Function> Function<A>(List<A> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(int x) Function<B extends core.int>()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(int x) Function<B extends core.int>() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is A Function<A>(int x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// core.List<core.int> Function(B x) Function<B extends core.int>()
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(B x) Function<B extends core.int>() l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is core.List<core.int> Function(B x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U26().runTests();
-  new U26<int>(tIsInt: true).runTests();
-  new U26<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type27_test.dart b/tests/language_2/function_type/function_type27_test.dart
deleted file mode 100644
index ef6da7fb7b4..00000000000
--- a/tests/language_2/function_type/function_type27_test.dart
+++ /dev/null
@@ -1,1018 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function([List<Function> x1]);
-typedef F1<T> = List<Function> Function(Function x0);
-typedef F2<T> = List<T> Function(int y, [int x]);
-typedef F3<T> = Function(int y, [List<T> x]);
-typedef F4<T> = List<T> Function<A>(core.List<core.int> x);
-typedef F5<T> = int Function(Function x1) Function<B extends core.int>(int x);
-typedef F6<T> = int Function(int x, [core.List<core.int> x1])
-    Function<B extends core.int>(int x);
-typedef F7<T> = Function Function(int x1, {int x}) Function<B extends core.int>(
-    int x);
-typedef F8<T> = Function Function([core.List<core.int> x])
-    Function<B extends core.int>(int x);
-typedef F9<T> = List<Function> Function(int y, [int x])
-    Function<B extends core.int>(int x);
-typedef F10<T> = List<Function> Function(int x2, [List<Function> x3])
-    Function<B extends core.int>(int x);
-typedef F11<T> = List<Function> Function(int x1, {List<T> x})
-    Function<B extends core.int>(int x);
-typedef F12<T> = core.List<core.int> Function(List<Function> x)
-    Function<B extends core.int>(int x);
-typedef F13<T> = core.List<core.int> Function(int y, [List<T> x])
-    Function<B extends core.int>(int x);
-typedef F14<T> = List<T> Function([Function x1]) Function<B extends core.int>(
-    int x);
-typedef F15<T> = List<T> Function({core.List<core.int> x})
-    Function<B extends core.int>(int x);
-typedef F16<T> = Function(int y, {int x}) Function<B extends core.int>(int x);
-typedef F17<T> = Function(int x1, [core.List<core.int> x])
-    Function<B extends core.int>(int x);
-typedef F18<T> = void Function(int x1) Function<B extends core.int>(int x);
-typedef F19<T> = void Function(int x, [List<Function> x1])
-    Function<B extends core.int>(int x);
-typedef F20<T> = void Function(int y, {List<T> x}) Function<B extends core.int>(
-    int x);
-typedef F21<T> = List<Function> Function<A>(List<A> x)
-    Function<B extends core.int>(int x);
-typedef F22<T> = A Function<A>(int x) Function<B extends core.int>(int x);
-typedef F23<T> = core.List<core.int> Function(B x) Function<B extends core.int>(
-    int x);
-
-int f0([List<Function> x0]) => null;
-List<Function> f1(Function x0) => null;
-List<int> f2(int y, [int x]) => null;
-f3(int y, [List<int> x]) => null;
-List<int> f4<A>(core.List<core.int> x) => null;
-int Function(Function x0) f5<B extends core.int>(int x) => null;
-int Function(int x, [core.List<core.int> x0]) f6<B extends core.int>(int x) =>
-    null;
-Function Function(int x0, {int x}) f7<B extends core.int>(int x) => null;
-Function Function([core.List<core.int> x]) f8<B extends core.int>(int x) =>
-    null;
-List<Function> Function(int y, [int x]) f9<B extends core.int>(int x) => null;
-List<Function> Function(int x0, [List<Function> x1]) f10<B extends core.int>(
-        int x) =>
-    null;
-List<Function> Function(int x0, {List<int> x}) f11<B extends core.int>(int x) =>
-    null;
-core.List<core.int> Function(List<Function> x) f12<B extends core.int>(int x) =>
-    null;
-core.List<core.int> Function(int y, [List<int> x]) f13<B extends core.int>(
-        int x) =>
-    null;
-List<int> Function([Function x0]) f14<B extends core.int>(int x) => null;
-List<int> Function({core.List<core.int> x}) f15<B extends core.int>(int x) =>
-    null;
-Function(int y, {int x}) f16<B extends core.int>(int x) => null;
-Function(int x0, [core.List<core.int> x]) f17<B extends core.int>(int x) =>
-    null;
-void Function(int x0) f18<B extends core.int>(int x) => null;
-void Function(int x, [List<Function> x0]) f19<B extends core.int>(int x) =>
-    null;
-void Function(int y, {List<int> x}) f20<B extends core.int>(int x) => null;
-List<Function> Function<A>(List<A> x) f21<B extends core.int>(int x) => null;
-A Function<A>(int x) f22<B extends core.int>(int x) => null;
-core.List<core.int> Function(B x) f23<B extends core.int>(int x) => null;
-
-class U27<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function([List<Function> x1]) x0;
-  List<Function> Function(Function x0) x1;
-  List<T> Function(int y, [int x]) x2;
-  Function(int y, [List<T> x]) x3;
-  List<T> Function<A>(core.List<core.int> x) x4;
-  int Function(Function x1) Function<B extends core.int>(int x) x5;
-  int Function(int x, [core.List<core.int> x1]) Function<B extends core.int>(
-      int x) x6;
-  Function Function(int x1, {int x}) Function<B extends core.int>(int x) x7;
-  Function Function([core.List<core.int> x]) Function<B extends core.int>(int x)
-      x8;
-  List<Function> Function(int y, [int x]) Function<B extends core.int>(int x)
-      x9;
-  List<Function> Function(int x2, [List<Function> x3])
-      Function<B extends core.int>(int x) x10;
-  List<Function> Function(int x1, {List<T> x}) Function<B extends core.int>(
-      int x) x11;
-  core.List<core.int> Function(List<Function> x) Function<B extends core.int>(
-      int x) x12;
-  core.List<core.int> Function(int y, [List<T> x]) Function<B extends core.int>(
-      int x) x13;
-  List<T> Function([Function x1]) Function<B extends core.int>(int x) x14;
-  List<T> Function({core.List<core.int> x}) Function<B extends core.int>(int x)
-      x15;
-  Function(int y, {int x}) Function<B extends core.int>(int x) x16;
-  Function(int x1, [core.List<core.int> x]) Function<B extends core.int>(int x)
-      x17;
-  void Function(int x1) Function<B extends core.int>(int x) x18;
-  void Function(int x, [List<Function> x1]) Function<B extends core.int>(int x)
-      x19;
-  void Function(int y, {List<T> x}) Function<B extends core.int>(int x) x20;
-  List<Function> Function<A>(List<A> x) Function<B extends core.int>(int x) x21;
-  A Function<A>(int x) Function<B extends core.int>(int x) x22;
-  core.List<core.int> Function(B x) Function<B extends core.int>(int x) x23;
-
-  U27({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0([List<Function> x0]) => null;
-  List<Function> m1(Function x0) => null;
-  List<T> m2(int y, [int x]) => null;
-  m3(int y, [List<T> x]) => null;
-  List<T> m4<A>(core.List<core.int> x) => null;
-  int Function(Function x0) m5<B extends core.int>(int x) => null;
-  int Function(int x, [core.List<core.int> x0]) m6<B extends core.int>(int x) =>
-      null;
-  Function Function(int x0, {int x}) m7<B extends core.int>(int x) => null;
-  Function Function([core.List<core.int> x]) m8<B extends core.int>(int x) =>
-      null;
-  List<Function> Function(int y, [int x]) m9<B extends core.int>(int x) => null;
-  List<Function> Function(int x0, [List<Function> x1]) m10<B extends core.int>(
-          int x) =>
-      null;
-  List<Function> Function(int x0, {List<T> x}) m11<B extends core.int>(int x) =>
-      null;
-  core.List<core.int> Function(List<Function> x) m12<B extends core.int>(
-          int x) =>
-      null;
-  core.List<core.int> Function(int y, [List<T> x]) m13<B extends core.int>(
-          int x) =>
-      null;
-  List<T> Function([Function x0]) m14<B extends core.int>(int x) => null;
-  List<T> Function({core.List<core.int> x}) m15<B extends core.int>(int x) =>
-      null;
-  Function(int y, {int x}) m16<B extends core.int>(int x) => null;
-  Function(int x0, [core.List<core.int> x]) m17<B extends core.int>(int x) =>
-      null;
-  void Function(int x0) m18<B extends core.int>(int x) => null;
-  void Function(int x, [List<Function> x0]) m19<B extends core.int>(int x) =>
-      null;
-  void Function(int y, {List<T> x}) m20<B extends core.int>(int x) => null;
-  List<Function> Function<A>(List<A> x) m21<B extends core.int>(int x) => null;
-  A Function<A>(int x) m22<B extends core.int>(int x) => null;
-  core.List<core.int> Function(B x) m23<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function([List<Function> x1])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function([List<Function> x1]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function([List<Function> x1]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(Function x0)
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(Function x0) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(Function x0));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(int y, [int x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, [int x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int y, [int x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// Function(int y, [List<T> x])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function(int y, [List<T> x]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function(int y, [List<T> x]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-    // The static function has its T always set to int.
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isFalse(f3 is F3<bool>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    Expect.isFalse(confuse(f3) is F3<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        x3 = confuse(f3);
-      });
-      Expect.throws(() {
-        l3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        l3 = confuse(f3);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m3 is F3<int>);
-      Expect.equals(true, m3 is F3<bool>);
-      Expect.equals(true, confuse(m3) is F3<int>);
-      Expect.equals(true, confuse(m3) is F3<bool>);
-    }
-  }
-
-  /// List<T> Function<A>(core.List<core.int> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(core.List<core.int> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is List<T> Function<A>(core.List<core.int> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-    // The static function has its T always set to int.
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isFalse(f4 is F4<bool>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    Expect.isFalse(confuse(f4) is F4<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        x4 = confuse(f4);
-      });
-      Expect.throws(() {
-        l4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        l4 = confuse(f4);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m4 is F4<int>);
-      Expect.equals(tIsBool, m4 is F4<bool>);
-      Expect.equals(tIsInt, confuse(m4) is F4<int>);
-      Expect.equals(tIsBool, confuse(m4) is F4<bool>);
-    }
-  }
-
-  /// int Function(Function x1) Function<B extends core.int>(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(Function x1) Function<B extends core.int>(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(
-        m5 is int Function(Function x1) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x, [core.List<core.int> x1]) Function<B extends core.int>(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x, [core.List<core.int> x1]) Function<B extends core.int>(
-        int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int x, [core.List<core.int> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int x1, {int x}) Function<B extends core.int>(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, {int x}) Function<B extends core.int>(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x1, {int x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function([core.List<core.int> x]) Function<B extends core.int>(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function([core.List<core.int> x]) Function<B extends core.int>(
-        int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function([core.List<core.int> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int y, [int x]) Function<B extends core.int>(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, [int x]) Function<B extends core.int>(int x)
-        l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int y, [int x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x2, [List<Function> x3]) Function<B extends core.int>(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x2, [List<Function> x3])
-        Function<B extends core.int>(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x2, [List<Function> x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function(int x1, {List<T> x}) Function<B extends core.int>(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, {List<T> x}) Function<B extends core.int>(
-        int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is List<Function> Function(int x1, {List<T> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(List<Function> x) Function<B extends core.int>(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(List<Function> x) Function<B extends core.int>(
-        int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(List<Function> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int y, [List<T> x]) Function<B extends core.int>(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, [List<T> x])
-        Function<B extends core.int>(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(int y, [List<T> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function([Function x1]) Function<B extends core.int>(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([Function x1]) Function<B extends core.int>(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function([Function x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function({core.List<core.int> x}) Function<B extends core.int>(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function({core.List<core.int> x}) Function<B extends core.int>(
-        int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function({core.List<core.int> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int y, {int x}) Function<B extends core.int>(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int y, {int x}) Function<B extends core.int>(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function(int y, {int x}) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x1, [core.List<core.int> x]) Function<B extends core.int>(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, [core.List<core.int> x]) Function<B extends core.int>(
-        int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x1, [core.List<core.int> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int x1) Function<B extends core.int>(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1) Function<B extends core.int>(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(
-        m18 is void Function(int x1) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x, [List<Function> x1]) Function<B extends core.int>(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x, [List<Function> x1]) Function<B extends core.int>(
-        int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int x, [List<Function> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function(int y, {List<T> x}) Function<B extends core.int>(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, {List<T> x}) Function<B extends core.int>(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is void Function(int y, {List<T> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(List<A> x) Function<B extends core.int>(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(List<A> x) Function<B extends core.int>(int x)
-        l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<Function> Function<A>(List<A> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(int x) Function<B extends core.int>(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(int x) Function<B extends core.int>(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(
-        m22 is A Function<A>(int x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// core.List<core.int> Function(B x) Function<B extends core.int>(int x)
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(B x) Function<B extends core.int>(int x) l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is core.List<core.int> Function(B x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U27().runTests();
-  new U27<int>(tIsInt: true).runTests();
-  new U27<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type28_test.dart b/tests/language_2/function_type/function_type28_test.dart
deleted file mode 100644
index c88505556f4..00000000000
--- a/tests/language_2/function_type/function_type28_test.dart
+++ /dev/null
@@ -1,945 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int x1, [List<Function> x2]);
-typedef F1<T> = List<Function> Function([Function x1]);
-typedef F2<T> = List<T> Function(int x0);
-typedef F3<T> = Function(List<T> x0);
-typedef F4<T> = List<T> Function<A>(List<T> x);
-typedef F5<T> = int Function([Function x1]) Function();
-typedef F6<T> = int Function({core.List<core.int> x}) Function();
-typedef F7<T> = Function Function(int y, {int x}) Function();
-typedef F8<T> = Function Function(int x0, [core.List<core.int> x]) Function();
-typedef F9<T> = List<Function> Function(int x0) Function();
-typedef F10<T> = List<Function> Function(int x, [List<Function> x2]) Function();
-typedef F11<T> = List<Function> Function(int y, {List<T> x}) Function();
-typedef F12<T> = core.List<core.int> Function([List<Function> x]) Function();
-typedef F13<T> = core.List<core.int> Function(List<T> x0) Function();
-typedef F14<T> = List<T> Function(int x1, [Function x2]) Function();
-typedef F15<T> = List<T> Function(int x0, {core.List<core.int> x}) Function();
-typedef F16<T> = Function(Function x) Function();
-typedef F17<T> = Function(int y, [core.List<core.int> x]) Function();
-typedef F18<T> = void Function([int x1]) Function();
-typedef F19<T> = void Function({List<Function> x}) Function();
-typedef F20<T> = void Function() Function();
-typedef F21<T> = core.List<core.int> Function<A>(int x) Function();
-typedef F22<T> = A Function<A>(Function x) Function();
-typedef F23<T> = List<T> Function(B x) Function<B extends core.int>();
-
-int f0(int x0, [List<Function> x1]) => null;
-List<Function> f1([Function x0]) => null;
-List<int> f2(int x0) => null;
-f3(List<int> x0) => null;
-List<int> f4<A>(List<int> x) => null;
-int Function([Function x0]) f5() => null;
-int Function({core.List<core.int> x}) f6() => null;
-Function Function(int y, {int x}) f7() => null;
-Function Function(int x0, [core.List<core.int> x]) f8() => null;
-List<Function> Function(int x0) f9() => null;
-List<Function> Function(int x, [List<Function> x0]) f10() => null;
-List<Function> Function(int y, {List<int> x}) f11() => null;
-core.List<core.int> Function([List<Function> x]) f12() => null;
-core.List<core.int> Function(List<int> x0) f13() => null;
-List<int> Function(int x0, [Function x1]) f14() => null;
-List<int> Function(int x0, {core.List<core.int> x}) f15() => null;
-Function(Function x) f16() => null;
-Function(int y, [core.List<core.int> x]) f17() => null;
-void Function([int x0]) f18() => null;
-void Function({List<Function> x}) f19() => null;
-void Function() f20() => null;
-core.List<core.int> Function<A>(int x) f21() => null;
-A Function<A>(Function x) f22() => null;
-List<int> Function(B x) f23<B extends core.int>() => null;
-
-class U28<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int x1, [List<Function> x2]) x0;
-  List<Function> Function([Function x1]) x1;
-  List<T> Function(int x0) x2;
-  Function(List<T> x0) x3;
-  List<T> Function<A>(List<T> x) x4;
-  int Function([Function x1]) Function() x5;
-  int Function({core.List<core.int> x}) Function() x6;
-  Function Function(int y, {int x}) Function() x7;
-  Function Function(int x0, [core.List<core.int> x]) Function() x8;
-  List<Function> Function(int x0) Function() x9;
-  List<Function> Function(int x, [List<Function> x2]) Function() x10;
-  List<Function> Function(int y, {List<T> x}) Function() x11;
-  core.List<core.int> Function([List<Function> x]) Function() x12;
-  core.List<core.int> Function(List<T> x0) Function() x13;
-  List<T> Function(int x1, [Function x2]) Function() x14;
-  List<T> Function(int x0, {core.List<core.int> x}) Function() x15;
-  Function(Function x) Function() x16;
-  Function(int y, [core.List<core.int> x]) Function() x17;
-  void Function([int x1]) Function() x18;
-  void Function({List<Function> x}) Function() x19;
-  void Function() Function() x20;
-  core.List<core.int> Function<A>(int x) Function() x21;
-  A Function<A>(Function x) Function() x22;
-  List<T> Function(B x) Function<B extends core.int>() x23;
-
-  U28({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int x0, [List<Function> x1]) => null;
-  List<Function> m1([Function x0]) => null;
-  List<T> m2(int x0) => null;
-  m3(List<T> x0) => null;
-  List<T> m4<A>(List<T> x) => null;
-  int Function([Function x0]) m5() => null;
-  int Function({core.List<core.int> x}) m6() => null;
-  Function Function(int y, {int x}) m7() => null;
-  Function Function(int x0, [core.List<core.int> x]) m8() => null;
-  List<Function> Function(int x0) m9() => null;
-  List<Function> Function(int x, [List<Function> x0]) m10() => null;
-  List<Function> Function(int y, {List<T> x}) m11() => null;
-  core.List<core.int> Function([List<Function> x]) m12() => null;
-  core.List<core.int> Function(List<T> x0) m13() => null;
-  List<T> Function(int x0, [Function x1]) m14() => null;
-  List<T> Function(int x0, {core.List<core.int> x}) m15() => null;
-  Function(Function x) m16() => null;
-  Function(int y, [core.List<core.int> x]) m17() => null;
-  void Function([int x0]) m18() => null;
-  void Function({List<Function> x}) m19() => null;
-  void Function() m20() => null;
-  core.List<core.int> Function<A>(int x) m21() => null;
-  A Function<A>(Function x) m22() => null;
-  List<T> Function(B x) m23<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int x1, [List<Function> x2])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, [List<Function> x2]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int x1, [List<Function> x2]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function([Function x1])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([Function x1]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function([Function x1]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(int x0)
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x0) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int x0));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// Function(List<T> x0)
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function(List<T> x0) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function(List<T> x0));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-    // The static function has its T always set to int.
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isFalse(f3 is F3<bool>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    Expect.isFalse(confuse(f3) is F3<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        x3 = confuse(f3);
-      });
-      Expect.throws(() {
-        l3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        l3 = confuse(f3);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m3 is F3<int>);
-      Expect.equals(true, m3 is F3<bool>);
-      Expect.equals(true, confuse(m3) is F3<int>);
-      Expect.equals(true, confuse(m3) is F3<bool>);
-    }
-  }
-
-  /// List<T> Function<A>(List<T> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(List<T> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is List<T> Function<A>(List<T> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-    // The static function has its T always set to int.
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isFalse(f4 is F4<bool>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    Expect.isFalse(confuse(f4) is F4<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        x4 = confuse(f4);
-      });
-      Expect.throws(() {
-        l4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        l4 = confuse(f4);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m4 is F4<int>);
-      Expect.equals(tIsBool, m4 is F4<bool>);
-      Expect.equals(tIsInt, confuse(m4) is F4<int>);
-      Expect.equals(tIsBool, confuse(m4) is F4<bool>);
-    }
-  }
-
-  /// int Function([Function x1]) Function()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function([Function x1]) Function() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function([Function x1]) Function());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function({core.List<core.int> x}) Function()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function({core.List<core.int> x}) Function() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function({core.List<core.int> x}) Function());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int y, {int x}) Function()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, {int x}) Function() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int y, {int x}) Function());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x0, [core.List<core.int> x]) Function()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x0, [core.List<core.int> x]) Function() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(
-        m8 is Function Function(int x0, [core.List<core.int> x]) Function());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int x0) Function()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x0) Function() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int x0) Function());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x, [List<Function> x2]) Function()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x, [List<Function> x2]) Function() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(
-        m10 is List<Function> Function(int x, [List<Function> x2]) Function());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function(int y, {List<T> x}) Function()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, {List<T> x}) Function() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is List<Function> Function(int y, {List<T> x}) Function());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function([List<Function> x]) Function()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([List<Function> x]) Function() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(
-        m12 is core.List<core.int> Function([List<Function> x]) Function());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(List<T> x0) Function()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(List<T> x0) Function() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(List<T> x0) Function());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x1, [Function x2]) Function()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, [Function x2]) Function() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int x1, [Function x2]) Function());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x0, {core.List<core.int> x}) Function()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x0, {core.List<core.int> x}) Function() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(
-        m15 is List<T> Function(int x0, {core.List<core.int> x}) Function());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(Function x) Function()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(Function x) Function() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(Function x) Function());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int y, [core.List<core.int> x]) Function()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int y, [core.List<core.int> x]) Function() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int y, [core.List<core.int> x]) Function());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function([int x1]) Function()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function([int x1]) Function() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function([int x1]) Function());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function({List<Function> x}) Function()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function({List<Function> x}) Function() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function({List<Function> x}) Function());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function() Function()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function() Function() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is void Function() Function());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(int x) Function()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(int x) Function() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is core.List<core.int> Function<A>(int x) Function());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(Function x) Function()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(Function x) Function() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is A Function<A>(Function x) Function());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// List<T> Function(B x) Function<B extends core.int>()
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(B x) Function<B extends core.int>() l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is List<T> Function(B x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-    // The static function has its T always set to int.
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isFalse(f23 is F23<bool>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    Expect.isFalse(confuse(f23) is F23<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x23 = (f23 as dynamic);
-      });
-      Expect.throws(() {
-        x23 = confuse(f23);
-      });
-      Expect.throws(() {
-        l23 = (f23 as dynamic);
-      });
-      Expect.throws(() {
-        l23 = confuse(f23);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m23 is F23<int>);
-      Expect.equals(tIsBool, m23 is F23<bool>);
-      Expect.equals(tIsInt, confuse(m23) is F23<int>);
-      Expect.equals(tIsBool, confuse(m23) is F23<bool>);
-    }
-  }
-}
-
-void main() {
-  new U28().runTests();
-  new U28<int>(tIsInt: true).runTests();
-  new U28<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type29_test.dart b/tests/language_2/function_type/function_type29_test.dart
deleted file mode 100644
index 81740b1bcb5..00000000000
--- a/tests/language_2/function_type/function_type29_test.dart
+++ /dev/null
@@ -1,954 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int x, [List<Function> x2]);
-typedef F1<T> = List<Function> Function(int x1, [Function x2]);
-typedef F2<T> = List<T> Function([int x1]);
-typedef F3<T> = Function([List<T> x1]);
-typedef F4<T> = List<T> Function<A>();
-typedef F5<T> = int Function([Function x1]) Function(int x);
-typedef F6<T> = int Function({core.List<core.int> x}) Function(int x);
-typedef F7<T> = Function Function(int y, {int x}) Function(int x);
-typedef F8<T> = Function Function(int x1, [core.List<core.int> x]) Function(
-    int x);
-typedef F9<T> = List<Function> Function(int x1) Function(int x);
-typedef F10<T> = List<Function> Function(int x, [List<Function> x1]) Function(
-    int x);
-typedef F11<T> = List<Function> Function(int y, {List<T> x}) Function(int x);
-typedef F12<T> = core.List<core.int> Function([List<Function> x]) Function(
-    int x);
-typedef F13<T> = core.List<core.int> Function(List<T> x1) Function(int x);
-typedef F14<T> = List<T> Function(int x2, [Function x3]) Function(int x);
-typedef F15<T> = List<T> Function(int x1, {core.List<core.int> x}) Function(
-    int x);
-typedef F16<T> = Function(Function x) Function(int x);
-typedef F17<T> = Function(int y, [core.List<core.int> x]) Function(int x);
-typedef F18<T> = void Function([int x1]) Function(int x);
-typedef F19<T> = void Function({List<Function> x}) Function(int x);
-typedef F20<T> = void Function() Function(int x);
-typedef F21<T> = core.List<core.int> Function<A>(int x) Function(int x);
-typedef F22<T> = A Function<A>(Function x) Function(int x);
-typedef F23<T> = List<T> Function(B x) Function<B extends core.int>(int x);
-
-int f0(int x, [List<Function> x0]) => null;
-List<Function> f1(int x0, [Function x1]) => null;
-List<int> f2([int x0]) => null;
-f3([List<int> x0]) => null;
-List<int> f4<A>() => null;
-int Function([Function x0]) f5(int x) => null;
-int Function({core.List<core.int> x}) f6(int x) => null;
-Function Function(int y, {int x}) f7(int x) => null;
-Function Function(int x0, [core.List<core.int> x]) f8(int x) => null;
-List<Function> Function(int x0) f9(int x) => null;
-List<Function> Function(int x, [List<Function> x0]) f10(int x) => null;
-List<Function> Function(int y, {List<int> x}) f11(int x) => null;
-core.List<core.int> Function([List<Function> x]) f12(int x) => null;
-core.List<core.int> Function(List<int> x0) f13(int x) => null;
-List<int> Function(int x0, [Function x1]) f14(int x) => null;
-List<int> Function(int x0, {core.List<core.int> x}) f15(int x) => null;
-Function(Function x) f16(int x) => null;
-Function(int y, [core.List<core.int> x]) f17(int x) => null;
-void Function([int x0]) f18(int x) => null;
-void Function({List<Function> x}) f19(int x) => null;
-void Function() f20(int x) => null;
-core.List<core.int> Function<A>(int x) f21(int x) => null;
-A Function<A>(Function x) f22(int x) => null;
-List<int> Function(B x) f23<B extends core.int>(int x) => null;
-
-class U29<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int x, [List<Function> x2]) x0;
-  List<Function> Function(int x1, [Function x2]) x1;
-  List<T> Function([int x1]) x2;
-  Function([List<T> x1]) x3;
-  List<T> Function<A>() x4;
-  int Function([Function x1]) Function(int x) x5;
-  int Function({core.List<core.int> x}) Function(int x) x6;
-  Function Function(int y, {int x}) Function(int x) x7;
-  Function Function(int x1, [core.List<core.int> x]) Function(int x) x8;
-  List<Function> Function(int x1) Function(int x) x9;
-  List<Function> Function(int x, [List<Function> x1]) Function(int x) x10;
-  List<Function> Function(int y, {List<T> x}) Function(int x) x11;
-  core.List<core.int> Function([List<Function> x]) Function(int x) x12;
-  core.List<core.int> Function(List<T> x1) Function(int x) x13;
-  List<T> Function(int x2, [Function x3]) Function(int x) x14;
-  List<T> Function(int x1, {core.List<core.int> x}) Function(int x) x15;
-  Function(Function x) Function(int x) x16;
-  Function(int y, [core.List<core.int> x]) Function(int x) x17;
-  void Function([int x1]) Function(int x) x18;
-  void Function({List<Function> x}) Function(int x) x19;
-  void Function() Function(int x) x20;
-  core.List<core.int> Function<A>(int x) Function(int x) x21;
-  A Function<A>(Function x) Function(int x) x22;
-  List<T> Function(B x) Function<B extends core.int>(int x) x23;
-
-  U29({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int x, [List<Function> x0]) => null;
-  List<Function> m1(int x0, [Function x1]) => null;
-  List<T> m2([int x0]) => null;
-  m3([List<T> x0]) => null;
-  List<T> m4<A>() => null;
-  int Function([Function x0]) m5(int x) => null;
-  int Function({core.List<core.int> x}) m6(int x) => null;
-  Function Function(int y, {int x}) m7(int x) => null;
-  Function Function(int x0, [core.List<core.int> x]) m8(int x) => null;
-  List<Function> Function(int x0) m9(int x) => null;
-  List<Function> Function(int x, [List<Function> x0]) m10(int x) => null;
-  List<Function> Function(int y, {List<T> x}) m11(int x) => null;
-  core.List<core.int> Function([List<Function> x]) m12(int x) => null;
-  core.List<core.int> Function(List<T> x0) m13(int x) => null;
-  List<T> Function(int x0, [Function x1]) m14(int x) => null;
-  List<T> Function(int x0, {core.List<core.int> x}) m15(int x) => null;
-  Function(Function x) m16(int x) => null;
-  Function(int y, [core.List<core.int> x]) m17(int x) => null;
-  void Function([int x0]) m18(int x) => null;
-  void Function({List<Function> x}) m19(int x) => null;
-  void Function() m20(int x) => null;
-  core.List<core.int> Function<A>(int x) m21(int x) => null;
-  A Function<A>(Function x) m22(int x) => null;
-  List<T> Function(B x) m23<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int x, [List<Function> x2])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int x, [List<Function> x2]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int x, [List<Function> x2]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(int x1, [Function x2])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, [Function x2]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(int x1, [Function x2]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function([int x1])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([int x1]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function([int x1]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// Function([List<T> x1])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function([List<T> x1]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function([List<T> x1]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-    // The static function has its T always set to int.
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isFalse(f3 is F3<bool>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    Expect.isFalse(confuse(f3) is F3<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        x3 = confuse(f3);
-      });
-      Expect.throws(() {
-        l3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        l3 = confuse(f3);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m3 is F3<int>);
-      Expect.equals(true, m3 is F3<bool>);
-      Expect.equals(true, confuse(m3) is F3<int>);
-      Expect.equals(true, confuse(m3) is F3<bool>);
-    }
-  }
-
-  /// List<T> Function<A>()
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>() l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is List<T> Function<A>());
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-    // The static function has its T always set to int.
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isFalse(f4 is F4<bool>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    Expect.isFalse(confuse(f4) is F4<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        x4 = confuse(f4);
-      });
-      Expect.throws(() {
-        l4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        l4 = confuse(f4);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m4 is F4<int>);
-      Expect.equals(tIsBool, m4 is F4<bool>);
-      Expect.equals(tIsInt, confuse(m4) is F4<int>);
-      Expect.equals(tIsBool, confuse(m4) is F4<bool>);
-    }
-  }
-
-  /// int Function([Function x1]) Function(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function([Function x1]) Function(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function([Function x1]) Function(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function({core.List<core.int> x}) Function(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function({core.List<core.int> x}) Function(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function({core.List<core.int> x}) Function(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int y, {int x}) Function(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, {int x}) Function(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int y, {int x}) Function(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x1, [core.List<core.int> x]) Function(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, [core.List<core.int> x]) Function(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x1, [core.List<core.int> x])
-        Function(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int x1) Function(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1) Function(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int x1) Function(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x, [List<Function> x1]) Function(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x, [List<Function> x1]) Function(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x, [List<Function> x1])
-        Function(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function(int y, {List<T> x}) Function(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, {List<T> x}) Function(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is List<Function> Function(int y, {List<T> x}) Function(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function([List<Function> x]) Function(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([List<Function> x]) Function(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function([List<Function> x])
-        Function(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(List<T> x1) Function(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(List<T> x1) Function(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(
-        m13 is core.List<core.int> Function(List<T> x1) Function(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x2, [Function x3]) Function(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x2, [Function x3]) Function(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(
-        m14 is List<T> Function(int x2, [Function x3]) Function(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x1, {core.List<core.int> x}) Function(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, {core.List<core.int> x}) Function(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x1, {core.List<core.int> x})
-        Function(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(Function x) Function(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(Function x) Function(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(Function x) Function(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int y, [core.List<core.int> x]) Function(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int y, [core.List<core.int> x]) Function(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(
-        m17 is Function(int y, [core.List<core.int> x]) Function(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function([int x1]) Function(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function([int x1]) Function(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function([int x1]) Function(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function({List<Function> x}) Function(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function({List<Function> x}) Function(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function({List<Function> x}) Function(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function() Function(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function() Function(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is void Function() Function(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(int x) Function(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(int x) Function(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(
-        m21 is core.List<core.int> Function<A>(int x) Function(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(Function x) Function(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(Function x) Function(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is A Function<A>(Function x) Function(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// List<T> Function(B x) Function<B extends core.int>(int x)
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(B x) Function<B extends core.int>(int x) l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(
-        m23 is List<T> Function(B x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-    // The static function has its T always set to int.
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isFalse(f23 is F23<bool>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    Expect.isFalse(confuse(f23) is F23<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x23 = (f23 as dynamic);
-      });
-      Expect.throws(() {
-        x23 = confuse(f23);
-      });
-      Expect.throws(() {
-        l23 = (f23 as dynamic);
-      });
-      Expect.throws(() {
-        l23 = confuse(f23);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m23 is F23<int>);
-      Expect.equals(tIsBool, m23 is F23<bool>);
-      Expect.equals(tIsInt, confuse(m23) is F23<int>);
-      Expect.equals(tIsBool, confuse(m23) is F23<bool>);
-    }
-  }
-}
-
-void main() {
-  new U29().runTests();
-  new U29<int>(tIsInt: true).runTests();
-  new U29<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type2_test.dart b/tests/language_2/function_type/function_type2_test.dart
deleted file mode 100644
index ed1eab98fa7..00000000000
--- a/tests/language_2/function_type/function_type2_test.dart
+++ /dev/null
@@ -1,963 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int x0, [int x]);
-typedef F1<T> = Function Function(int x0, [List<T> x]);
-typedef F2<T> = core.List<core.int> Function([core.List<core.int> x]);
-typedef F3<T> = Function(List<Function> x);
-typedef F4<T> = Function Function<A>(List<Function> x);
-typedef F5<T> = int Function(int x1, {int x}) Function<B extends core.int>();
-typedef F6<T> = int Function([core.List<core.int> x])
-    Function<B extends core.int>();
-typedef F7<T> = Function Function(int y, [int x])
-    Function<B extends core.int>();
-typedef F8<T> = Function Function(int x2, [List<Function> x3])
-    Function<B extends core.int>();
-typedef F9<T> = Function Function(int x1, {List<T> x})
-    Function<B extends core.int>();
-typedef F10<T> = List<Function> Function(List<Function> x)
-    Function<B extends core.int>();
-typedef F11<T> = List<Function> Function(int y, [List<T> x])
-    Function<B extends core.int>();
-typedef F12<T> = core.List<core.int> Function([Function x1])
-    Function<B extends core.int>();
-typedef F13<T> = core.List<core.int> Function({core.List<core.int> x})
-    Function<B extends core.int>();
-typedef F14<T> = List<T> Function(int y, {int x})
-    Function<B extends core.int>();
-typedef F15<T> = List<T> Function(int x1, [core.List<core.int> x])
-    Function<B extends core.int>();
-typedef F16<T> = Function(int x1) Function<B extends core.int>();
-typedef F17<T> = Function(int x, [List<Function> x1])
-    Function<B extends core.int>();
-typedef F18<T> = Function(int y, {List<T> x}) Function<B extends core.int>();
-typedef F19<T> = void Function([List<Function> x])
-    Function<B extends core.int>();
-typedef F20<T> = void Function(List<T> x1) Function<B extends core.int>();
-typedef F21<T> = List<Function> Function<A>(Function x)
-    Function<B extends core.int>();
-typedef F22<T> = Function<A>(List<Function> x) Function<B extends core.int>();
-typedef F23<T> = void Function<A>(core.List<core.int> x)
-    Function<B extends core.int>();
-
-int f0(int x0, [int x]) => null;
-Function f1(int x0, [List<int> x]) => null;
-core.List<core.int> f2([core.List<core.int> x]) => null;
-f3(List<Function> x) => null;
-Function f4<A>(List<Function> x) => null;
-int Function(int x0, {int x}) f5<B extends core.int>() => null;
-int Function([core.List<core.int> x]) f6<B extends core.int>() => null;
-Function Function(int y, [int x]) f7<B extends core.int>() => null;
-Function Function(int x0, [List<Function> x1]) f8<B extends core.int>() => null;
-Function Function(int x0, {List<int> x}) f9<B extends core.int>() => null;
-List<Function> Function(List<Function> x) f10<B extends core.int>() => null;
-List<Function> Function(int y, [List<int> x]) f11<B extends core.int>() => null;
-core.List<core.int> Function([Function x0]) f12<B extends core.int>() => null;
-core.List<core.int> Function({core.List<core.int> x})
-    f13<B extends core.int>() => null;
-List<int> Function(int y, {int x}) f14<B extends core.int>() => null;
-List<int> Function(int x0, [core.List<core.int> x]) f15<B extends core.int>() =>
-    null;
-Function(int x0) f16<B extends core.int>() => null;
-Function(int x, [List<Function> x0]) f17<B extends core.int>() => null;
-Function(int y, {List<int> x}) f18<B extends core.int>() => null;
-void Function([List<Function> x]) f19<B extends core.int>() => null;
-void Function(List<int> x0) f20<B extends core.int>() => null;
-List<Function> Function<A>(Function x) f21<B extends core.int>() => null;
-Function<A>(List<Function> x) f22<B extends core.int>() => null;
-void Function<A>(core.List<core.int> x) f23<B extends core.int>() => null;
-
-class U2<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int x0, [int x]) x0;
-  Function Function(int x0, [List<T> x]) x1;
-  core.List<core.int> Function([core.List<core.int> x]) x2;
-  Function(List<Function> x) x3;
-  Function Function<A>(List<Function> x) x4;
-  int Function(int x1, {int x}) Function<B extends core.int>() x5;
-  int Function([core.List<core.int> x]) Function<B extends core.int>() x6;
-  Function Function(int y, [int x]) Function<B extends core.int>() x7;
-  Function Function(int x2, [List<Function> x3]) Function<B extends core.int>()
-      x8;
-  Function Function(int x1, {List<T> x}) Function<B extends core.int>() x9;
-  List<Function> Function(List<Function> x) Function<B extends core.int>() x10;
-  List<Function> Function(int y, [List<T> x]) Function<B extends core.int>()
-      x11;
-  core.List<core.int> Function([Function x1]) Function<B extends core.int>()
-      x12;
-  core.List<core.int> Function({core.List<core.int> x})
-      Function<B extends core.int>() x13;
-  List<T> Function(int y, {int x}) Function<B extends core.int>() x14;
-  List<T> Function(int x1, [core.List<core.int> x])
-      Function<B extends core.int>() x15;
-  Function(int x1) Function<B extends core.int>() x16;
-  Function(int x, [List<Function> x1]) Function<B extends core.int>() x17;
-  Function(int y, {List<T> x}) Function<B extends core.int>() x18;
-  void Function([List<Function> x]) Function<B extends core.int>() x19;
-  void Function(List<T> x1) Function<B extends core.int>() x20;
-  List<Function> Function<A>(Function x) Function<B extends core.int>() x21;
-  Function<A>(List<Function> x) Function<B extends core.int>() x22;
-  void Function<A>(core.List<core.int> x) Function<B extends core.int>() x23;
-
-  U2({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int x0, [int x]) => null;
-  Function m1(int x0, [List<T> x]) => null;
-  core.List<core.int> m2([core.List<core.int> x]) => null;
-  m3(List<Function> x) => null;
-  Function m4<A>(List<Function> x) => null;
-  int Function(int x0, {int x}) m5<B extends core.int>() => null;
-  int Function([core.List<core.int> x]) m6<B extends core.int>() => null;
-  Function Function(int y, [int x]) m7<B extends core.int>() => null;
-  Function Function(int x0, [List<Function> x1]) m8<B extends core.int>() =>
-      null;
-  Function Function(int x0, {List<T> x}) m9<B extends core.int>() => null;
-  List<Function> Function(List<Function> x) m10<B extends core.int>() => null;
-  List<Function> Function(int y, [List<T> x]) m11<B extends core.int>() => null;
-  core.List<core.int> Function([Function x0]) m12<B extends core.int>() => null;
-  core.List<core.int> Function({core.List<core.int> x})
-      m13<B extends core.int>() => null;
-  List<T> Function(int y, {int x}) m14<B extends core.int>() => null;
-  List<T> Function(int x0, [core.List<core.int> x]) m15<B extends core.int>() =>
-      null;
-  Function(int x0) m16<B extends core.int>() => null;
-  Function(int x, [List<Function> x0]) m17<B extends core.int>() => null;
-  Function(int y, {List<T> x}) m18<B extends core.int>() => null;
-  void Function([List<Function> x]) m19<B extends core.int>() => null;
-  void Function(List<T> x0) m20<B extends core.int>() => null;
-  List<Function> Function<A>(Function x) m21<B extends core.int>() => null;
-  Function<A>(List<Function> x) m22<B extends core.int>() => null;
-  void Function<A>(core.List<core.int> x) m23<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int x0, [int x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int x0, [int x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int x0, [int x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// Function Function(int x0, [List<T> x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x0, [List<T> x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is Function Function(int x0, [List<T> x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-    // The static function has its T always set to int.
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isFalse(f1 is F1<bool>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    Expect.isFalse(confuse(f1) is F1<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        x1 = confuse(f1);
-      });
-      Expect.throws(() {
-        l1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        l1 = confuse(f1);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m1 is F1<int>);
-      Expect.equals(true, m1 is F1<bool>);
-      Expect.equals(true, confuse(m1) is F1<int>);
-      Expect.equals(true, confuse(m1) is F1<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function([core.List<core.int> x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([core.List<core.int> x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is core.List<core.int> Function([core.List<core.int> x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// Function(List<Function> x)
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function(List<Function> x) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function(List<Function> x));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// Function Function<A>(List<Function> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(List<Function> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is Function Function<A>(List<Function> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x1, {int x}) Function<B extends core.int>()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, {int x}) Function<B extends core.int>() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(
-        m5 is int Function(int x1, {int x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function([core.List<core.int> x]) Function<B extends core.int>()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function([core.List<core.int> x]) Function<B extends core.int>() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function([core.List<core.int> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int y, [int x]) Function<B extends core.int>()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, [int x]) Function<B extends core.int>() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(
-        m7 is Function Function(int y, [int x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x2, [List<Function> x3]) Function<B extends core.int>()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x2, [List<Function> x3])
-        Function<B extends core.int>() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x2, [List<Function> x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// Function Function(int x1, {List<T> x}) Function<B extends core.int>()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, {List<T> x}) Function<B extends core.int>() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is Function Function(int x1, {List<T> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-    // The static function has its T always set to int.
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isFalse(f9 is F9<bool>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    Expect.isFalse(confuse(f9) is F9<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x9 = (f9 as dynamic);
-      });
-      Expect.throws(() {
-        x9 = confuse(f9);
-      });
-      Expect.throws(() {
-        l9 = (f9 as dynamic);
-      });
-      Expect.throws(() {
-        l9 = confuse(f9);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m9 is F9<int>);
-      Expect.equals(tIsBool, m9 is F9<bool>);
-      Expect.equals(tIsInt, confuse(m9) is F9<int>);
-      Expect.equals(tIsBool, confuse(m9) is F9<bool>);
-    }
-  }
-
-  /// List<Function> Function(List<Function> x) Function<B extends core.int>()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(List<Function> x) Function<B extends core.int>()
-        l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(List<Function> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function(int y, [List<T> x]) Function<B extends core.int>()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, [List<T> x]) Function<B extends core.int>()
-        l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is List<Function> Function(int y, [List<T> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function([Function x1]) Function<B extends core.int>()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([Function x1]) Function<B extends core.int>()
-        l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function([Function x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function({core.List<core.int> x}) Function<B extends core.int>()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function({core.List<core.int> x})
-        Function<B extends core.int>() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function({core.List<core.int> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-  }
-
-  /// List<T> Function(int y, {int x}) Function<B extends core.int>()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, {int x}) Function<B extends core.int>() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(
-        m14 is List<T> Function(int y, {int x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x1, [core.List<core.int> x]) Function<B extends core.int>()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, [core.List<core.int> x])
-        Function<B extends core.int>() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x1, [core.List<core.int> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x1) Function<B extends core.int>()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x1) Function<B extends core.int>() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x1) Function<B extends core.int>());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x, [List<Function> x1]) Function<B extends core.int>()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x, [List<Function> x1]) Function<B extends core.int>() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x, [List<Function> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// Function(int y, {List<T> x}) Function<B extends core.int>()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    Function(int y, {List<T> x}) Function<B extends core.int>() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(
-        m18 is Function(int y, {List<T> x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-    // The static function has its T always set to int.
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isFalse(f18 is F18<bool>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    Expect.isFalse(confuse(f18) is F18<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x18 = (f18 as dynamic);
-      });
-      Expect.throws(() {
-        x18 = confuse(f18);
-      });
-      Expect.throws(() {
-        l18 = (f18 as dynamic);
-      });
-      Expect.throws(() {
-        l18 = confuse(f18);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m18 is F18<int>);
-      Expect.equals(tIsBool, m18 is F18<bool>);
-      Expect.equals(tIsInt, confuse(m18) is F18<int>);
-      Expect.equals(tIsBool, confuse(m18) is F18<bool>);
-    }
-  }
-
-  /// void Function([List<Function> x]) Function<B extends core.int>()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function([List<Function> x]) Function<B extends core.int>() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function([List<Function> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function(List<T> x1) Function<B extends core.int>()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function(List<T> x1) Function<B extends core.int>() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(
-        m20 is void Function(List<T> x1) Function<B extends core.int>());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(Function x) Function<B extends core.int>()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(Function x) Function<B extends core.int>() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<Function> Function<A>(Function x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// Function<A>(List<Function> x) Function<B extends core.int>()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    Function<A>(List<Function> x) Function<B extends core.int>() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(
-        m22 is Function<A>(List<Function> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// void Function<A>(core.List<core.int> x) Function<B extends core.int>()
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(core.List<core.int> x) Function<B extends core.int>() l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is void Function<A>(core.List<core.int> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U2().runTests();
-  new U2<int>(tIsInt: true).runTests();
-  new U2<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type30_test.dart b/tests/language_2/function_type/function_type30_test.dart
deleted file mode 100644
index 3fbb971081d..00000000000
--- a/tests/language_2/function_type/function_type30_test.dart
+++ /dev/null
@@ -1,961 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function({List<Function> x});
-typedef F1<T> = List<Function> Function(int x, [Function x2]);
-typedef F2<T> = List<T> Function(int x1, [int x2]);
-typedef F3<T> = Function(int x1, [List<T> x2]);
-typedef F4<T> = List<T> Function<A>(A x);
-typedef F5<T> = int Function([Function x1]) Function<B extends core.int>();
-typedef F6<T> = int Function({core.List<core.int> x})
-    Function<B extends core.int>();
-typedef F7<T> = Function Function(int y, {int x})
-    Function<B extends core.int>();
-typedef F8<T> = Function Function(int x1, [core.List<core.int> x])
-    Function<B extends core.int>();
-typedef F9<T> = List<Function> Function(int x1) Function<B extends core.int>();
-typedef F10<T> = List<Function> Function(int x, [List<Function> x1])
-    Function<B extends core.int>();
-typedef F11<T> = List<Function> Function(int y, {List<T> x})
-    Function<B extends core.int>();
-typedef F12<T> = core.List<core.int> Function([List<Function> x])
-    Function<B extends core.int>();
-typedef F13<T> = core.List<core.int> Function(List<T> x1)
-    Function<B extends core.int>();
-typedef F14<T> = List<T> Function(int x2, [Function x3])
-    Function<B extends core.int>();
-typedef F15<T> = List<T> Function(int x1, {core.List<core.int> x})
-    Function<B extends core.int>();
-typedef F16<T> = Function(Function x) Function<B extends core.int>();
-typedef F17<T> = Function(int y, [core.List<core.int> x])
-    Function<B extends core.int>();
-typedef F18<T> = void Function([int x1]) Function<B extends core.int>();
-typedef F19<T> = void Function({List<Function> x})
-    Function<B extends core.int>();
-typedef F20<T> = void Function() Function<B extends core.int>();
-typedef F21<T> = core.List<core.int> Function<A>(int x)
-    Function<B extends core.int>();
-typedef F22<T> = A Function<A>(Function x) Function<B extends core.int>();
-typedef F23<T> = Function(B x) Function<B extends core.int>();
-
-int f0({List<Function> x}) => null;
-List<Function> f1(int x, [Function x0]) => null;
-List<int> f2(int x0, [int x1]) => null;
-f3(int x0, [List<int> x1]) => null;
-List<int> f4<A>(A x) => null;
-int Function([Function x0]) f5<B extends core.int>() => null;
-int Function({core.List<core.int> x}) f6<B extends core.int>() => null;
-Function Function(int y, {int x}) f7<B extends core.int>() => null;
-Function Function(int x0, [core.List<core.int> x]) f8<B extends core.int>() =>
-    null;
-List<Function> Function(int x0) f9<B extends core.int>() => null;
-List<Function> Function(int x, [List<Function> x0]) f10<B extends core.int>() =>
-    null;
-List<Function> Function(int y, {List<int> x}) f11<B extends core.int>() => null;
-core.List<core.int> Function([List<Function> x]) f12<B extends core.int>() =>
-    null;
-core.List<core.int> Function(List<int> x0) f13<B extends core.int>() => null;
-List<int> Function(int x0, [Function x1]) f14<B extends core.int>() => null;
-List<int> Function(int x0, {core.List<core.int> x}) f15<B extends core.int>() =>
-    null;
-Function(Function x) f16<B extends core.int>() => null;
-Function(int y, [core.List<core.int> x]) f17<B extends core.int>() => null;
-void Function([int x0]) f18<B extends core.int>() => null;
-void Function({List<Function> x}) f19<B extends core.int>() => null;
-void Function() f20<B extends core.int>() => null;
-core.List<core.int> Function<A>(int x) f21<B extends core.int>() => null;
-A Function<A>(Function x) f22<B extends core.int>() => null;
-Function(B x) f23<B extends core.int>() => null;
-
-class U30<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function({List<Function> x}) x0;
-  List<Function> Function(int x, [Function x2]) x1;
-  List<T> Function(int x1, [int x2]) x2;
-  Function(int x1, [List<T> x2]) x3;
-  List<T> Function<A>(A x) x4;
-  int Function([Function x1]) Function<B extends core.int>() x5;
-  int Function({core.List<core.int> x}) Function<B extends core.int>() x6;
-  Function Function(int y, {int x}) Function<B extends core.int>() x7;
-  Function Function(int x1, [core.List<core.int> x])
-      Function<B extends core.int>() x8;
-  List<Function> Function(int x1) Function<B extends core.int>() x9;
-  List<Function> Function(int x, [List<Function> x1])
-      Function<B extends core.int>() x10;
-  List<Function> Function(int y, {List<T> x}) Function<B extends core.int>()
-      x11;
-  core.List<core.int> Function([List<Function> x])
-      Function<B extends core.int>() x12;
-  core.List<core.int> Function(List<T> x1) Function<B extends core.int>() x13;
-  List<T> Function(int x2, [Function x3]) Function<B extends core.int>() x14;
-  List<T> Function(int x1, {core.List<core.int> x})
-      Function<B extends core.int>() x15;
-  Function(Function x) Function<B extends core.int>() x16;
-  Function(int y, [core.List<core.int> x]) Function<B extends core.int>() x17;
-  void Function([int x1]) Function<B extends core.int>() x18;
-  void Function({List<Function> x}) Function<B extends core.int>() x19;
-  void Function() Function<B extends core.int>() x20;
-  core.List<core.int> Function<A>(int x) Function<B extends core.int>() x21;
-  A Function<A>(Function x) Function<B extends core.int>() x22;
-  Function(B x) Function<B extends core.int>() x23;
-
-  U30({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0({List<Function> x}) => null;
-  List<Function> m1(int x, [Function x0]) => null;
-  List<T> m2(int x0, [int x1]) => null;
-  m3(int x0, [List<T> x1]) => null;
-  List<T> m4<A>(A x) => null;
-  int Function([Function x0]) m5<B extends core.int>() => null;
-  int Function({core.List<core.int> x}) m6<B extends core.int>() => null;
-  Function Function(int y, {int x}) m7<B extends core.int>() => null;
-  Function Function(int x0, [core.List<core.int> x]) m8<B extends core.int>() =>
-      null;
-  List<Function> Function(int x0) m9<B extends core.int>() => null;
-  List<Function> Function(int x, [List<Function> x0])
-      m10<B extends core.int>() => null;
-  List<Function> Function(int y, {List<T> x}) m11<B extends core.int>() => null;
-  core.List<core.int> Function([List<Function> x]) m12<B extends core.int>() =>
-      null;
-  core.List<core.int> Function(List<T> x0) m13<B extends core.int>() => null;
-  List<T> Function(int x0, [Function x1]) m14<B extends core.int>() => null;
-  List<T> Function(int x0, {core.List<core.int> x}) m15<B extends core.int>() =>
-      null;
-  Function(Function x) m16<B extends core.int>() => null;
-  Function(int y, [core.List<core.int> x]) m17<B extends core.int>() => null;
-  void Function([int x0]) m18<B extends core.int>() => null;
-  void Function({List<Function> x}) m19<B extends core.int>() => null;
-  void Function() m20<B extends core.int>() => null;
-  core.List<core.int> Function<A>(int x) m21<B extends core.int>() => null;
-  A Function<A>(Function x) m22<B extends core.int>() => null;
-  Function(B x) m23<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function({List<Function> x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function({List<Function> x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function({List<Function> x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(int x, [Function x2])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x, [Function x2]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(int x, [Function x2]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(int x1, [int x2])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, [int x2]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int x1, [int x2]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// Function(int x1, [List<T> x2])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, [List<T> x2]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function(int x1, [List<T> x2]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-    // The static function has its T always set to int.
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isFalse(f3 is F3<bool>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    Expect.isFalse(confuse(f3) is F3<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        x3 = confuse(f3);
-      });
-      Expect.throws(() {
-        l3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        l3 = confuse(f3);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m3 is F3<int>);
-      Expect.equals(true, m3 is F3<bool>);
-      Expect.equals(true, confuse(m3) is F3<int>);
-      Expect.equals(true, confuse(m3) is F3<bool>);
-    }
-  }
-
-  /// List<T> Function<A>(A x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(A x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is List<T> Function<A>(A x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-    // The static function has its T always set to int.
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isFalse(f4 is F4<bool>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    Expect.isFalse(confuse(f4) is F4<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        x4 = confuse(f4);
-      });
-      Expect.throws(() {
-        l4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        l4 = confuse(f4);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m4 is F4<int>);
-      Expect.equals(tIsBool, m4 is F4<bool>);
-      Expect.equals(tIsInt, confuse(m4) is F4<int>);
-      Expect.equals(tIsBool, confuse(m4) is F4<bool>);
-    }
-  }
-
-  /// int Function([Function x1]) Function<B extends core.int>()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function([Function x1]) Function<B extends core.int>() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(
-        m5 is int Function([Function x1]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function({core.List<core.int> x}) Function<B extends core.int>()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function({core.List<core.int> x}) Function<B extends core.int>() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function({core.List<core.int> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int y, {int x}) Function<B extends core.int>()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, {int x}) Function<B extends core.int>() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(
-        m7 is Function Function(int y, {int x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x1, [core.List<core.int> x]) Function<B extends core.int>()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, [core.List<core.int> x])
-        Function<B extends core.int>() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x1, [core.List<core.int> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int x1) Function<B extends core.int>()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1) Function<B extends core.int>() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(
-        m9 is List<Function> Function(int x1) Function<B extends core.int>());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x, [List<Function> x1]) Function<B extends core.int>()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x, [List<Function> x1])
-        Function<B extends core.int>() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x, [List<Function> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function(int y, {List<T> x}) Function<B extends core.int>()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, {List<T> x}) Function<B extends core.int>()
-        l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is List<Function> Function(int y, {List<T> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function([List<Function> x]) Function<B extends core.int>()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([List<Function> x])
-        Function<B extends core.int>() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function([List<Function> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(List<T> x1) Function<B extends core.int>()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(List<T> x1) Function<B extends core.int>() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(List<T> x1)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x2, [Function x3]) Function<B extends core.int>()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x2, [Function x3]) Function<B extends core.int>() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int x2, [Function x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x1, {core.List<core.int> x}) Function<B extends core.int>()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, {core.List<core.int> x})
-        Function<B extends core.int>() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x1, {core.List<core.int> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(Function x) Function<B extends core.int>()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(Function x) Function<B extends core.int>() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(Function x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int y, [core.List<core.int> x]) Function<B extends core.int>()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int y, [core.List<core.int> x]) Function<B extends core.int>() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int y, [core.List<core.int> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function([int x1]) Function<B extends core.int>()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function([int x1]) Function<B extends core.int>() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(
-        m18 is void Function([int x1]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function({List<Function> x}) Function<B extends core.int>()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function({List<Function> x}) Function<B extends core.int>() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function({List<Function> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function() Function<B extends core.int>()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function() Function<B extends core.int>() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is void Function() Function<B extends core.int>());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(int x) Function<B extends core.int>()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(int x) Function<B extends core.int>() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is core.List<core.int> Function<A>(int x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(Function x) Function<B extends core.int>()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(Function x) Function<B extends core.int>() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(
-        m22 is A Function<A>(Function x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// Function(B x) Function<B extends core.int>()
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    Function(B x) Function<B extends core.int>() l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is Function(B x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U30().runTests();
-  new U30<int>(tIsInt: true).runTests();
-  new U30<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type31_test.dart b/tests/language_2/function_type/function_type31_test.dart
deleted file mode 100644
index 00099809ddc..00000000000
--- a/tests/language_2/function_type/function_type31_test.dart
+++ /dev/null
@@ -1,987 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int x0, {List<Function> x});
-typedef F1<T> = List<Function> Function({Function x});
-typedef F2<T> = List<T> Function(int x, [int x2]);
-typedef F3<T> = Function(int x, [List<T> x2]);
-typedef F4<T> = List<T> Function<A>(List<A> x);
-typedef F5<T> = int Function([Function x1]) Function<B extends core.int>(int x);
-typedef F6<T> = int Function({core.List<core.int> x})
-    Function<B extends core.int>(int x);
-typedef F7<T> = Function Function(int y, {int x}) Function<B extends core.int>(
-    int x);
-typedef F8<T> = Function Function(int x1, [core.List<core.int> x])
-    Function<B extends core.int>(int x);
-typedef F9<T> = List<Function> Function(int x1) Function<B extends core.int>(
-    int x);
-typedef F10<T> = List<Function> Function(int x, [List<Function> x1])
-    Function<B extends core.int>(int x);
-typedef F11<T> = List<Function> Function(int y, {List<T> x})
-    Function<B extends core.int>(int x);
-typedef F12<T> = core.List<core.int> Function([List<Function> x])
-    Function<B extends core.int>(int x);
-typedef F13<T> = core.List<core.int> Function(List<T> x1)
-    Function<B extends core.int>(int x);
-typedef F14<T> = List<T> Function(int x2, [Function x3])
-    Function<B extends core.int>(int x);
-typedef F15<T> = List<T> Function(int x1, {core.List<core.int> x})
-    Function<B extends core.int>(int x);
-typedef F16<T> = Function(Function x) Function<B extends core.int>(int x);
-typedef F17<T> = Function(int y, [core.List<core.int> x])
-    Function<B extends core.int>(int x);
-typedef F18<T> = void Function([int x1]) Function<B extends core.int>(int x);
-typedef F19<T> = void Function({List<Function> x}) Function<B extends core.int>(
-    int x);
-typedef F20<T> = void Function() Function<B extends core.int>(int x);
-typedef F21<T> = core.List<core.int> Function<A>(int x)
-    Function<B extends core.int>(int x);
-typedef F22<T> = A Function<A>(Function x) Function<B extends core.int>(int x);
-typedef F23<T> = Function(B x) Function<B extends core.int>(int x);
-
-int f0(int x0, {List<Function> x}) => null;
-List<Function> f1({Function x}) => null;
-List<int> f2(int x, [int x0]) => null;
-f3(int x, [List<int> x0]) => null;
-List<int> f4<A>(List<A> x) => null;
-int Function([Function x0]) f5<B extends core.int>(int x) => null;
-int Function({core.List<core.int> x}) f6<B extends core.int>(int x) => null;
-Function Function(int y, {int x}) f7<B extends core.int>(int x) => null;
-Function Function(int x0, [core.List<core.int> x]) f8<B extends core.int>(
-        int x) =>
-    null;
-List<Function> Function(int x0) f9<B extends core.int>(int x) => null;
-List<Function> Function(int x, [List<Function> x0]) f10<B extends core.int>(
-        int x) =>
-    null;
-List<Function> Function(int y, {List<int> x}) f11<B extends core.int>(int x) =>
-    null;
-core.List<core.int> Function([List<Function> x]) f12<B extends core.int>(
-        int x) =>
-    null;
-core.List<core.int> Function(List<int> x0) f13<B extends core.int>(int x) =>
-    null;
-List<int> Function(int x0, [Function x1]) f14<B extends core.int>(int x) =>
-    null;
-List<int> Function(int x0, {core.List<core.int> x}) f15<B extends core.int>(
-        int x) =>
-    null;
-Function(Function x) f16<B extends core.int>(int x) => null;
-Function(int y, [core.List<core.int> x]) f17<B extends core.int>(int x) => null;
-void Function([int x0]) f18<B extends core.int>(int x) => null;
-void Function({List<Function> x}) f19<B extends core.int>(int x) => null;
-void Function() f20<B extends core.int>(int x) => null;
-core.List<core.int> Function<A>(int x) f21<B extends core.int>(int x) => null;
-A Function<A>(Function x) f22<B extends core.int>(int x) => null;
-Function(B x) f23<B extends core.int>(int x) => null;
-
-class U31<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int x0, {List<Function> x}) x0;
-  List<Function> Function({Function x}) x1;
-  List<T> Function(int x, [int x2]) x2;
-  Function(int x, [List<T> x2]) x3;
-  List<T> Function<A>(List<A> x) x4;
-  int Function([Function x1]) Function<B extends core.int>(int x) x5;
-  int Function({core.List<core.int> x}) Function<B extends core.int>(int x) x6;
-  Function Function(int y, {int x}) Function<B extends core.int>(int x) x7;
-  Function Function(int x1, [core.List<core.int> x])
-      Function<B extends core.int>(int x) x8;
-  List<Function> Function(int x1) Function<B extends core.int>(int x) x9;
-  List<Function> Function(int x, [List<Function> x1])
-      Function<B extends core.int>(int x) x10;
-  List<Function> Function(int y, {List<T> x}) Function<B extends core.int>(
-      int x) x11;
-  core.List<core.int> Function([List<Function> x]) Function<B extends core.int>(
-      int x) x12;
-  core.List<core.int> Function(List<T> x1) Function<B extends core.int>(int x)
-      x13;
-  List<T> Function(int x2, [Function x3]) Function<B extends core.int>(int x)
-      x14;
-  List<T> Function(int x1, {core.List<core.int> x})
-      Function<B extends core.int>(int x) x15;
-  Function(Function x) Function<B extends core.int>(int x) x16;
-  Function(int y, [core.List<core.int> x]) Function<B extends core.int>(int x)
-      x17;
-  void Function([int x1]) Function<B extends core.int>(int x) x18;
-  void Function({List<Function> x}) Function<B extends core.int>(int x) x19;
-  void Function() Function<B extends core.int>(int x) x20;
-  core.List<core.int> Function<A>(int x) Function<B extends core.int>(int x)
-      x21;
-  A Function<A>(Function x) Function<B extends core.int>(int x) x22;
-  Function(B x) Function<B extends core.int>(int x) x23;
-
-  U31({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int x0, {List<Function> x}) => null;
-  List<Function> m1({Function x}) => null;
-  List<T> m2(int x, [int x0]) => null;
-  m3(int x, [List<T> x0]) => null;
-  List<T> m4<A>(List<A> x) => null;
-  int Function([Function x0]) m5<B extends core.int>(int x) => null;
-  int Function({core.List<core.int> x}) m6<B extends core.int>(int x) => null;
-  Function Function(int y, {int x}) m7<B extends core.int>(int x) => null;
-  Function Function(int x0, [core.List<core.int> x]) m8<B extends core.int>(
-          int x) =>
-      null;
-  List<Function> Function(int x0) m9<B extends core.int>(int x) => null;
-  List<Function> Function(int x, [List<Function> x0]) m10<B extends core.int>(
-          int x) =>
-      null;
-  List<Function> Function(int y, {List<T> x}) m11<B extends core.int>(int x) =>
-      null;
-  core.List<core.int> Function([List<Function> x]) m12<B extends core.int>(
-          int x) =>
-      null;
-  core.List<core.int> Function(List<T> x0) m13<B extends core.int>(int x) =>
-      null;
-  List<T> Function(int x0, [Function x1]) m14<B extends core.int>(int x) =>
-      null;
-  List<T> Function(int x0, {core.List<core.int> x}) m15<B extends core.int>(
-          int x) =>
-      null;
-  Function(Function x) m16<B extends core.int>(int x) => null;
-  Function(int y, [core.List<core.int> x]) m17<B extends core.int>(int x) =>
-      null;
-  void Function([int x0]) m18<B extends core.int>(int x) => null;
-  void Function({List<Function> x}) m19<B extends core.int>(int x) => null;
-  void Function() m20<B extends core.int>(int x) => null;
-  core.List<core.int> Function<A>(int x) m21<B extends core.int>(int x) => null;
-  A Function<A>(Function x) m22<B extends core.int>(int x) => null;
-  Function(B x) m23<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int x0, {List<Function> x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int x0, {List<Function> x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int x0, {List<Function> x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function({Function x})
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function({Function x}) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function({Function x}));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(int x, [int x2])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x, [int x2]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int x, [int x2]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// Function(int x, [List<T> x2])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function(int x, [List<T> x2]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function(int x, [List<T> x2]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-    // The static function has its T always set to int.
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isFalse(f3 is F3<bool>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    Expect.isFalse(confuse(f3) is F3<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        x3 = confuse(f3);
-      });
-      Expect.throws(() {
-        l3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        l3 = confuse(f3);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m3 is F3<int>);
-      Expect.equals(true, m3 is F3<bool>);
-      Expect.equals(true, confuse(m3) is F3<int>);
-      Expect.equals(true, confuse(m3) is F3<bool>);
-    }
-  }
-
-  /// List<T> Function<A>(List<A> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(List<A> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is List<T> Function<A>(List<A> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-    // The static function has its T always set to int.
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isFalse(f4 is F4<bool>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    Expect.isFalse(confuse(f4) is F4<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        x4 = confuse(f4);
-      });
-      Expect.throws(() {
-        l4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        l4 = confuse(f4);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m4 is F4<int>);
-      Expect.equals(tIsBool, m4 is F4<bool>);
-      Expect.equals(tIsInt, confuse(m4) is F4<int>);
-      Expect.equals(tIsBool, confuse(m4) is F4<bool>);
-    }
-  }
-
-  /// int Function([Function x1]) Function<B extends core.int>(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function([Function x1]) Function<B extends core.int>(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(
-        m5 is int Function([Function x1]) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function({core.List<core.int> x}) Function<B extends core.int>(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function({core.List<core.int> x}) Function<B extends core.int>(int x)
-        l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function({core.List<core.int> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int y, {int x}) Function<B extends core.int>(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, {int x}) Function<B extends core.int>(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int y, {int x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x1, [core.List<core.int> x]) Function<B extends core.int>(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, [core.List<core.int> x])
-        Function<B extends core.int>(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x1, [core.List<core.int> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int x1) Function<B extends core.int>(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1) Function<B extends core.int>(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int x1)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x, [List<Function> x1]) Function<B extends core.int>(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x, [List<Function> x1])
-        Function<B extends core.int>(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x, [List<Function> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function(int y, {List<T> x}) Function<B extends core.int>(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, {List<T> x}) Function<B extends core.int>(
-        int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is List<Function> Function(int y, {List<T> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function([List<Function> x]) Function<B extends core.int>(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([List<Function> x])
-        Function<B extends core.int>(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function([List<Function> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(List<T> x1) Function<B extends core.int>(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(List<T> x1) Function<B extends core.int>(int x)
-        l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(List<T> x1)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x2, [Function x3]) Function<B extends core.int>(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x2, [Function x3]) Function<B extends core.int>(int x)
-        l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int x2, [Function x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x1, {core.List<core.int> x}) Function<B extends core.int>(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, {core.List<core.int> x})
-        Function<B extends core.int>(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x1, {core.List<core.int> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(Function x) Function<B extends core.int>(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(Function x) Function<B extends core.int>(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function(Function x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int y, [core.List<core.int> x]) Function<B extends core.int>(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int y, [core.List<core.int> x]) Function<B extends core.int>(int x)
-        l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int y, [core.List<core.int> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function([int x1]) Function<B extends core.int>(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function([int x1]) Function<B extends core.int>(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(
-        m18 is void Function([int x1]) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function({List<Function> x}) Function<B extends core.int>(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function({List<Function> x}) Function<B extends core.int>(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function({List<Function> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function() Function<B extends core.int>(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function() Function<B extends core.int>(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is void Function() Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(int x) Function<B extends core.int>(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(int x) Function<B extends core.int>(int x)
-        l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is core.List<core.int> Function<A>(int x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(Function x) Function<B extends core.int>(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(Function x) Function<B extends core.int>(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(
-        m22 is A Function<A>(Function x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// Function(B x) Function<B extends core.int>(int x)
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    Function(B x) Function<B extends core.int>(int x) l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is Function(B x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U31().runTests();
-  new U31<int>(tIsInt: true).runTests();
-  new U31<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type32_test.dart b/tests/language_2/function_type/function_type32_test.dart
deleted file mode 100644
index 2714ce95546..00000000000
--- a/tests/language_2/function_type/function_type32_test.dart
+++ /dev/null
@@ -1,872 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int y, {List<Function> x});
-typedef F1<T> = List<Function> Function(int x0, {Function x});
-typedef F2<T> = List<T> Function({int x});
-typedef F3<T> = Function({List<T> x});
-typedef F4<T> = Function<A>(int x);
-typedef F5<T> = int Function(int x1, [Function x2]) Function();
-typedef F6<T> = int Function(int x0, {core.List<core.int> x}) Function();
-typedef F7<T> = Function Function(Function x) Function();
-typedef F8<T> = Function Function(int y, [core.List<core.int> x]) Function();
-typedef F9<T> = List<Function> Function([int x1]) Function();
-typedef F10<T> = List<Function> Function({List<Function> x}) Function();
-typedef F11<T> = List<Function> Function() Function();
-typedef F12<T> = core.List<core.int> Function(int x0, [List<Function> x])
-    Function();
-typedef F13<T> = core.List<core.int> Function([List<T> x1]) Function();
-typedef F14<T> = List<T> Function(int x, [Function x2]) Function();
-typedef F15<T> = List<T> Function(int y, {core.List<core.int> x}) Function();
-typedef F16<T> = Function([Function x]) Function();
-typedef F17<T> = Function(core.List<core.int> x0) Function();
-typedef F18<T> = void Function(int x1, [int x2]) Function();
-typedef F19<T> = void Function(int x0, {List<Function> x}) Function();
-typedef F20<T> = int Function<A>(int x) Function();
-typedef F21<T> = core.List<core.int> Function<A>(Function x) Function();
-typedef F22<T> = A Function<A>(List<Function> x) Function();
-typedef F23<T> = B Function(B x) Function<B extends core.int>();
-
-int f0(int y, {List<Function> x}) => null;
-List<Function> f1(int x0, {Function x}) => null;
-List<int> f2({int x}) => null;
-f3({List<int> x}) => null;
-f4<A>(int x) => null;
-int Function(int x0, [Function x1]) f5() => null;
-int Function(int x0, {core.List<core.int> x}) f6() => null;
-Function Function(Function x) f7() => null;
-Function Function(int y, [core.List<core.int> x]) f8() => null;
-List<Function> Function([int x0]) f9() => null;
-List<Function> Function({List<Function> x}) f10() => null;
-List<Function> Function() f11() => null;
-core.List<core.int> Function(int x0, [List<Function> x]) f12() => null;
-core.List<core.int> Function([List<int> x0]) f13() => null;
-List<int> Function(int x, [Function x0]) f14() => null;
-List<int> Function(int y, {core.List<core.int> x}) f15() => null;
-Function([Function x]) f16() => null;
-Function(core.List<core.int> x0) f17() => null;
-void Function(int x0, [int x1]) f18() => null;
-void Function(int x0, {List<Function> x}) f19() => null;
-int Function<A>(int x) f20() => null;
-core.List<core.int> Function<A>(Function x) f21() => null;
-A Function<A>(List<Function> x) f22() => null;
-B Function(B x) f23<B extends core.int>() => null;
-
-class U32<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int y, {List<Function> x}) x0;
-  List<Function> Function(int x0, {Function x}) x1;
-  List<T> Function({int x}) x2;
-  Function({List<T> x}) x3;
-  Function<A>(int x) x4;
-  int Function(int x1, [Function x2]) Function() x5;
-  int Function(int x0, {core.List<core.int> x}) Function() x6;
-  Function Function(Function x) Function() x7;
-  Function Function(int y, [core.List<core.int> x]) Function() x8;
-  List<Function> Function([int x1]) Function() x9;
-  List<Function> Function({List<Function> x}) Function() x10;
-  List<Function> Function() Function() x11;
-  core.List<core.int> Function(int x0, [List<Function> x]) Function() x12;
-  core.List<core.int> Function([List<T> x1]) Function() x13;
-  List<T> Function(int x, [Function x2]) Function() x14;
-  List<T> Function(int y, {core.List<core.int> x}) Function() x15;
-  Function([Function x]) Function() x16;
-  Function(core.List<core.int> x0) Function() x17;
-  void Function(int x1, [int x2]) Function() x18;
-  void Function(int x0, {List<Function> x}) Function() x19;
-  int Function<A>(int x) Function() x20;
-  core.List<core.int> Function<A>(Function x) Function() x21;
-  A Function<A>(List<Function> x) Function() x22;
-  B Function(B x) Function<B extends core.int>() x23;
-
-  U32({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int y, {List<Function> x}) => null;
-  List<Function> m1(int x0, {Function x}) => null;
-  List<T> m2({int x}) => null;
-  m3({List<T> x}) => null;
-  m4<A>(int x) => null;
-  int Function(int x0, [Function x1]) m5() => null;
-  int Function(int x0, {core.List<core.int> x}) m6() => null;
-  Function Function(Function x) m7() => null;
-  Function Function(int y, [core.List<core.int> x]) m8() => null;
-  List<Function> Function([int x0]) m9() => null;
-  List<Function> Function({List<Function> x}) m10() => null;
-  List<Function> Function() m11() => null;
-  core.List<core.int> Function(int x0, [List<Function> x]) m12() => null;
-  core.List<core.int> Function([List<T> x0]) m13() => null;
-  List<T> Function(int x, [Function x0]) m14() => null;
-  List<T> Function(int y, {core.List<core.int> x}) m15() => null;
-  Function([Function x]) m16() => null;
-  Function(core.List<core.int> x0) m17() => null;
-  void Function(int x0, [int x1]) m18() => null;
-  void Function(int x0, {List<Function> x}) m19() => null;
-  int Function<A>(int x) m20() => null;
-  core.List<core.int> Function<A>(Function x) m21() => null;
-  A Function<A>(List<Function> x) m22() => null;
-  B Function(B x) m23<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int y, {List<Function> x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, {List<Function> x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int y, {List<Function> x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(int x0, {Function x})
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x0, {Function x}) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(int x0, {Function x}));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function({int x})
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function({int x}) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function({int x}));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// Function({List<T> x})
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function({List<T> x}) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function({List<T> x}));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-    // The static function has its T always set to int.
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isFalse(f3 is F3<bool>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    Expect.isFalse(confuse(f3) is F3<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        x3 = confuse(f3);
-      });
-      Expect.throws(() {
-        l3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        l3 = confuse(f3);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m3 is F3<int>);
-      Expect.equals(true, m3 is F3<bool>);
-      Expect.equals(true, confuse(m3) is F3<int>);
-      Expect.equals(true, confuse(m3) is F3<bool>);
-    }
-  }
-
-  /// Function<A>(int x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    Function<A>(int x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is Function<A>(int x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x1, [Function x2]) Function()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, [Function x2]) Function() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x1, [Function x2]) Function());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x0, {core.List<core.int> x}) Function()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x0, {core.List<core.int> x}) Function() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is int Function(int x0, {core.List<core.int> x}) Function());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(Function x) Function()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(Function x) Function() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(Function x) Function());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int y, [core.List<core.int> x]) Function()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, [core.List<core.int> x]) Function() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(
-        m8 is Function Function(int y, [core.List<core.int> x]) Function());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function([int x1]) Function()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([int x1]) Function() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function([int x1]) Function());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function({List<Function> x}) Function()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function({List<Function> x}) Function() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(
-        m10 is List<Function> Function({List<Function> x}) Function());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function() Function()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function() Function() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is List<Function> Function() Function());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x0, [List<Function> x]) Function()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x0, [List<Function> x]) Function() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12
-        is core.List<core.int> Function(int x0, [List<Function> x]) Function());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function([List<T> x1]) Function()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([List<T> x1]) Function() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function([List<T> x1]) Function());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x, [Function x2]) Function()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x, [Function x2]) Function() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int x, [Function x2]) Function());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, {core.List<core.int> x}) Function()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, {core.List<core.int> x}) Function() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(
-        m15 is List<T> Function(int y, {core.List<core.int> x}) Function());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function([Function x]) Function()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function([Function x]) Function() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function([Function x]) Function());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(core.List<core.int> x0) Function()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(core.List<core.int> x0) Function() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(core.List<core.int> x0) Function());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int x1, [int x2]) Function()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, [int x2]) Function() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x1, [int x2]) Function());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x0, {List<Function> x}) Function()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x0, {List<Function> x}) Function() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int x0, {List<Function> x}) Function());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(int x) Function()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(int x) Function() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is int Function<A>(int x) Function());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(Function x) Function()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(Function x) Function() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(
-        m21 is core.List<core.int> Function<A>(Function x) Function());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(List<Function> x) Function()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(List<Function> x) Function() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is A Function<A>(List<Function> x) Function());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// B Function(B x) Function<B extends core.int>()
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    B Function(B x) Function<B extends core.int>() l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is B Function(B x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U32().runTests();
-  new U32<int>(tIsInt: true).runTests();
-  new U32<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type33_test.dart b/tests/language_2/function_type/function_type33_test.dart
deleted file mode 100644
index 17ad658aaaa..00000000000
--- a/tests/language_2/function_type/function_type33_test.dart
+++ /dev/null
@@ -1,879 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(core.List<core.int> x);
-typedef F1<T> = List<Function> Function(int y, {Function x});
-typedef F2<T> = List<T> Function(int x0, {int x});
-typedef F3<T> = Function(int x0, {List<T> x});
-typedef F4<T> = Function<A>(Function x);
-typedef F5<T> = int Function(int x2, [Function x3]) Function(int x);
-typedef F6<T> = int Function(int x1, {core.List<core.int> x}) Function(int x);
-typedef F7<T> = Function Function(Function x) Function(int x);
-typedef F8<T> = Function Function(int y, [core.List<core.int> x]) Function(
-    int x);
-typedef F9<T> = List<Function> Function([int x1]) Function(int x);
-typedef F10<T> = List<Function> Function({List<Function> x}) Function(int x);
-typedef F11<T> = List<Function> Function() Function(int x);
-typedef F12<T> = core.List<core.int> Function(int x1, [List<Function> x])
-    Function(int x);
-typedef F13<T> = core.List<core.int> Function([List<T> x1]) Function(int x);
-typedef F14<T> = List<T> Function(int x, [Function x1]) Function(int x);
-typedef F15<T> = List<T> Function(int y, {core.List<core.int> x}) Function(
-    int x);
-typedef F16<T> = Function([Function x]) Function(int x);
-typedef F17<T> = Function(core.List<core.int> x1) Function(int x);
-typedef F18<T> = void Function(int x2, [int x3]) Function(int x);
-typedef F19<T> = void Function(int x1, {List<Function> x}) Function(int x);
-typedef F20<T> = int Function<A>(int x) Function(int x);
-typedef F21<T> = core.List<core.int> Function<A>(Function x) Function(int x);
-typedef F22<T> = A Function<A>(List<Function> x) Function(int x);
-typedef F23<T> = B Function(B x) Function<B extends core.int>(int x);
-
-int f0(core.List<core.int> x) => null;
-List<Function> f1(int y, {Function x}) => null;
-List<int> f2(int x0, {int x}) => null;
-f3(int x0, {List<int> x}) => null;
-f4<A>(Function x) => null;
-int Function(int x0, [Function x1]) f5(int x) => null;
-int Function(int x0, {core.List<core.int> x}) f6(int x) => null;
-Function Function(Function x) f7(int x) => null;
-Function Function(int y, [core.List<core.int> x]) f8(int x) => null;
-List<Function> Function([int x0]) f9(int x) => null;
-List<Function> Function({List<Function> x}) f10(int x) => null;
-List<Function> Function() f11(int x) => null;
-core.List<core.int> Function(int x0, [List<Function> x]) f12(int x) => null;
-core.List<core.int> Function([List<int> x0]) f13(int x) => null;
-List<int> Function(int x, [Function x0]) f14(int x) => null;
-List<int> Function(int y, {core.List<core.int> x}) f15(int x) => null;
-Function([Function x]) f16(int x) => null;
-Function(core.List<core.int> x0) f17(int x) => null;
-void Function(int x0, [int x1]) f18(int x) => null;
-void Function(int x0, {List<Function> x}) f19(int x) => null;
-int Function<A>(int x) f20(int x) => null;
-core.List<core.int> Function<A>(Function x) f21(int x) => null;
-A Function<A>(List<Function> x) f22(int x) => null;
-B Function(B x) f23<B extends core.int>(int x) => null;
-
-class U33<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(core.List<core.int> x) x0;
-  List<Function> Function(int y, {Function x}) x1;
-  List<T> Function(int x0, {int x}) x2;
-  Function(int x0, {List<T> x}) x3;
-  Function<A>(Function x) x4;
-  int Function(int x2, [Function x3]) Function(int x) x5;
-  int Function(int x1, {core.List<core.int> x}) Function(int x) x6;
-  Function Function(Function x) Function(int x) x7;
-  Function Function(int y, [core.List<core.int> x]) Function(int x) x8;
-  List<Function> Function([int x1]) Function(int x) x9;
-  List<Function> Function({List<Function> x}) Function(int x) x10;
-  List<Function> Function() Function(int x) x11;
-  core.List<core.int> Function(int x1, [List<Function> x]) Function(int x) x12;
-  core.List<core.int> Function([List<T> x1]) Function(int x) x13;
-  List<T> Function(int x, [Function x1]) Function(int x) x14;
-  List<T> Function(int y, {core.List<core.int> x}) Function(int x) x15;
-  Function([Function x]) Function(int x) x16;
-  Function(core.List<core.int> x1) Function(int x) x17;
-  void Function(int x2, [int x3]) Function(int x) x18;
-  void Function(int x1, {List<Function> x}) Function(int x) x19;
-  int Function<A>(int x) Function(int x) x20;
-  core.List<core.int> Function<A>(Function x) Function(int x) x21;
-  A Function<A>(List<Function> x) Function(int x) x22;
-  B Function(B x) Function<B extends core.int>(int x) x23;
-
-  U33({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(core.List<core.int> x) => null;
-  List<Function> m1(int y, {Function x}) => null;
-  List<T> m2(int x0, {int x}) => null;
-  m3(int x0, {List<T> x}) => null;
-  m4<A>(Function x) => null;
-  int Function(int x0, [Function x1]) m5(int x) => null;
-  int Function(int x0, {core.List<core.int> x}) m6(int x) => null;
-  Function Function(Function x) m7(int x) => null;
-  Function Function(int y, [core.List<core.int> x]) m8(int x) => null;
-  List<Function> Function([int x0]) m9(int x) => null;
-  List<Function> Function({List<Function> x}) m10(int x) => null;
-  List<Function> Function() m11(int x) => null;
-  core.List<core.int> Function(int x0, [List<Function> x]) m12(int x) => null;
-  core.List<core.int> Function([List<T> x0]) m13(int x) => null;
-  List<T> Function(int x, [Function x0]) m14(int x) => null;
-  List<T> Function(int y, {core.List<core.int> x}) m15(int x) => null;
-  Function([Function x]) m16(int x) => null;
-  Function(core.List<core.int> x0) m17(int x) => null;
-  void Function(int x0, [int x1]) m18(int x) => null;
-  void Function(int x0, {List<Function> x}) m19(int x) => null;
-  int Function<A>(int x) m20(int x) => null;
-  core.List<core.int> Function<A>(Function x) m21(int x) => null;
-  A Function<A>(List<Function> x) m22(int x) => null;
-  B Function(B x) m23<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(core.List<core.int> x)
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(core.List<core.int> x) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(core.List<core.int> x));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(int y, {Function x})
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, {Function x}) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(int y, {Function x}));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(int x0, {int x})
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x0, {int x}) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int x0, {int x}));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// Function(int x0, {List<T> x})
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function(int x0, {List<T> x}) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function(int x0, {List<T> x}));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-    // The static function has its T always set to int.
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isFalse(f3 is F3<bool>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    Expect.isFalse(confuse(f3) is F3<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        x3 = confuse(f3);
-      });
-      Expect.throws(() {
-        l3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        l3 = confuse(f3);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m3 is F3<int>);
-      Expect.equals(true, m3 is F3<bool>);
-      Expect.equals(true, confuse(m3) is F3<int>);
-      Expect.equals(true, confuse(m3) is F3<bool>);
-    }
-  }
-
-  /// Function<A>(Function x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    Function<A>(Function x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is Function<A>(Function x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x2, [Function x3]) Function(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x2, [Function x3]) Function(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x2, [Function x3]) Function(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x1, {core.List<core.int> x}) Function(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, {core.List<core.int> x}) Function(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is int Function(int x1, {core.List<core.int> x}) Function(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(Function x) Function(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(Function x) Function(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(Function x) Function(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int y, [core.List<core.int> x]) Function(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, [core.List<core.int> x]) Function(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int y, [core.List<core.int> x])
-        Function(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function([int x1]) Function(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([int x1]) Function(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function([int x1]) Function(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function({List<Function> x}) Function(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function({List<Function> x}) Function(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(
-        m10 is List<Function> Function({List<Function> x}) Function(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function() Function(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function() Function(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is List<Function> Function() Function(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x1, [List<Function> x]) Function(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, [List<Function> x]) Function(int x)
-        l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x1,
-            [List<Function> x])
-        Function(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function([List<T> x1]) Function(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([List<T> x1]) Function(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(
-        m13 is core.List<core.int> Function([List<T> x1]) Function(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x, [Function x1]) Function(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x, [Function x1]) Function(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(
-        m14 is List<T> Function(int x, [Function x1]) Function(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, {core.List<core.int> x}) Function(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, {core.List<core.int> x}) Function(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int y, {core.List<core.int> x})
-        Function(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function([Function x]) Function(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function([Function x]) Function(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function([Function x]) Function(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(core.List<core.int> x1) Function(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(core.List<core.int> x1) Function(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(core.List<core.int> x1) Function(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int x2, [int x3]) Function(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x2, [int x3]) Function(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x2, [int x3]) Function(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x1, {List<Function> x}) Function(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, {List<Function> x}) Function(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(
-        m19 is void Function(int x1, {List<Function> x}) Function(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(int x) Function(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(int x) Function(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is int Function<A>(int x) Function(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(Function x) Function(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(Function x) Function(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(
-        m21 is core.List<core.int> Function<A>(Function x) Function(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(List<Function> x) Function(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(List<Function> x) Function(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is A Function<A>(List<Function> x) Function(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// B Function(B x) Function<B extends core.int>(int x)
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    B Function(B x) Function<B extends core.int>(int x) l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is B Function(B x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U33().runTests();
-  new U33<int>(tIsInt: true).runTests();
-  new U33<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type34_test.dart b/tests/language_2/function_type/function_type34_test.dart
deleted file mode 100644
index 1bc1dda8ebf..00000000000
--- a/tests/language_2/function_type/function_type34_test.dart
+++ /dev/null
@@ -1,915 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function([core.List<core.int> x]);
-typedef F1<T> = List<Function> Function(List<Function> x);
-typedef F2<T> = List<T> Function(int y, {int x});
-typedef F3<T> = Function(int y, {List<T> x});
-typedef F4<T> = Function<A>(List<Function> x);
-typedef F5<T> = int Function(int x2, [Function x3])
-    Function<B extends core.int>();
-typedef F6<T> = int Function(int x1, {core.List<core.int> x})
-    Function<B extends core.int>();
-typedef F7<T> = Function Function(Function x) Function<B extends core.int>();
-typedef F8<T> = Function Function(int y, [core.List<core.int> x])
-    Function<B extends core.int>();
-typedef F9<T> = List<Function> Function([int x1])
-    Function<B extends core.int>();
-typedef F10<T> = List<Function> Function({List<Function> x})
-    Function<B extends core.int>();
-typedef F11<T> = List<Function> Function() Function<B extends core.int>();
-typedef F12<T> = core.List<core.int> Function(int x1, [List<Function> x])
-    Function<B extends core.int>();
-typedef F13<T> = core.List<core.int> Function([List<T> x1])
-    Function<B extends core.int>();
-typedef F14<T> = List<T> Function(int x, [Function x1])
-    Function<B extends core.int>();
-typedef F15<T> = List<T> Function(int y, {core.List<core.int> x})
-    Function<B extends core.int>();
-typedef F16<T> = Function([Function x]) Function<B extends core.int>();
-typedef F17<T> = Function(core.List<core.int> x1)
-    Function<B extends core.int>();
-typedef F18<T> = void Function(int x2, [int x3]) Function<B extends core.int>();
-typedef F19<T> = void Function(int x1, {List<Function> x})
-    Function<B extends core.int>();
-typedef F20<T> = int Function<A>(int x) Function<B extends core.int>();
-typedef F21<T> = core.List<core.int> Function<A>(Function x)
-    Function<B extends core.int>();
-typedef F22<T> = A Function<A>(List<Function> x) Function<B extends core.int>();
-typedef F23<T> = List<B> Function(B x) Function<B extends core.int>();
-
-int f0([core.List<core.int> x]) => null;
-List<Function> f1(List<Function> x) => null;
-List<int> f2(int y, {int x}) => null;
-f3(int y, {List<int> x}) => null;
-f4<A>(List<Function> x) => null;
-int Function(int x0, [Function x1]) f5<B extends core.int>() => null;
-int Function(int x0, {core.List<core.int> x}) f6<B extends core.int>() => null;
-Function Function(Function x) f7<B extends core.int>() => null;
-Function Function(int y, [core.List<core.int> x]) f8<B extends core.int>() =>
-    null;
-List<Function> Function([int x0]) f9<B extends core.int>() => null;
-List<Function> Function({List<Function> x}) f10<B extends core.int>() => null;
-List<Function> Function() f11<B extends core.int>() => null;
-core.List<core.int> Function(int x0, [List<Function> x])
-    f12<B extends core.int>() => null;
-core.List<core.int> Function([List<int> x0]) f13<B extends core.int>() => null;
-List<int> Function(int x, [Function x0]) f14<B extends core.int>() => null;
-List<int> Function(int y, {core.List<core.int> x}) f15<B extends core.int>() =>
-    null;
-Function([Function x]) f16<B extends core.int>() => null;
-Function(core.List<core.int> x0) f17<B extends core.int>() => null;
-void Function(int x0, [int x1]) f18<B extends core.int>() => null;
-void Function(int x0, {List<Function> x}) f19<B extends core.int>() => null;
-int Function<A>(int x) f20<B extends core.int>() => null;
-core.List<core.int> Function<A>(Function x) f21<B extends core.int>() => null;
-A Function<A>(List<Function> x) f22<B extends core.int>() => null;
-List<B> Function(B x) f23<B extends core.int>() => null;
-
-class U34<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function([core.List<core.int> x]) x0;
-  List<Function> Function(List<Function> x) x1;
-  List<T> Function(int y, {int x}) x2;
-  Function(int y, {List<T> x}) x3;
-  Function<A>(List<Function> x) x4;
-  int Function(int x2, [Function x3]) Function<B extends core.int>() x5;
-  int Function(int x1, {core.List<core.int> x}) Function<B extends core.int>()
-      x6;
-  Function Function(Function x) Function<B extends core.int>() x7;
-  Function Function(int y, [core.List<core.int> x])
-      Function<B extends core.int>() x8;
-  List<Function> Function([int x1]) Function<B extends core.int>() x9;
-  List<Function> Function({List<Function> x}) Function<B extends core.int>()
-      x10;
-  List<Function> Function() Function<B extends core.int>() x11;
-  core.List<core.int> Function(int x1, [List<Function> x])
-      Function<B extends core.int>() x12;
-  core.List<core.int> Function([List<T> x1]) Function<B extends core.int>() x13;
-  List<T> Function(int x, [Function x1]) Function<B extends core.int>() x14;
-  List<T> Function(int y, {core.List<core.int> x})
-      Function<B extends core.int>() x15;
-  Function([Function x]) Function<B extends core.int>() x16;
-  Function(core.List<core.int> x1) Function<B extends core.int>() x17;
-  void Function(int x2, [int x3]) Function<B extends core.int>() x18;
-  void Function(int x1, {List<Function> x}) Function<B extends core.int>() x19;
-  int Function<A>(int x) Function<B extends core.int>() x20;
-  core.List<core.int> Function<A>(Function x) Function<B extends core.int>()
-      x21;
-  A Function<A>(List<Function> x) Function<B extends core.int>() x22;
-  List<B> Function(B x) Function<B extends core.int>() x23;
-
-  U34({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0([core.List<core.int> x]) => null;
-  List<Function> m1(List<Function> x) => null;
-  List<T> m2(int y, {int x}) => null;
-  m3(int y, {List<T> x}) => null;
-  m4<A>(List<Function> x) => null;
-  int Function(int x0, [Function x1]) m5<B extends core.int>() => null;
-  int Function(int x0, {core.List<core.int> x}) m6<B extends core.int>() =>
-      null;
-  Function Function(Function x) m7<B extends core.int>() => null;
-  Function Function(int y, [core.List<core.int> x]) m8<B extends core.int>() =>
-      null;
-  List<Function> Function([int x0]) m9<B extends core.int>() => null;
-  List<Function> Function({List<Function> x}) m10<B extends core.int>() => null;
-  List<Function> Function() m11<B extends core.int>() => null;
-  core.List<core.int> Function(int x0, [List<Function> x])
-      m12<B extends core.int>() => null;
-  core.List<core.int> Function([List<T> x0]) m13<B extends core.int>() => null;
-  List<T> Function(int x, [Function x0]) m14<B extends core.int>() => null;
-  List<T> Function(int y, {core.List<core.int> x}) m15<B extends core.int>() =>
-      null;
-  Function([Function x]) m16<B extends core.int>() => null;
-  Function(core.List<core.int> x0) m17<B extends core.int>() => null;
-  void Function(int x0, [int x1]) m18<B extends core.int>() => null;
-  void Function(int x0, {List<Function> x}) m19<B extends core.int>() => null;
-  int Function<A>(int x) m20<B extends core.int>() => null;
-  core.List<core.int> Function<A>(Function x) m21<B extends core.int>() => null;
-  A Function<A>(List<Function> x) m22<B extends core.int>() => null;
-  List<B> Function(B x) m23<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function([core.List<core.int> x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function([core.List<core.int> x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function([core.List<core.int> x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(List<Function> x)
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(List<Function> x) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(List<Function> x));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(int y, {int x})
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, {int x}) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int y, {int x}));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// Function(int y, {List<T> x})
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function(int y, {List<T> x}) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function(int y, {List<T> x}));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-    // The static function has its T always set to int.
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isFalse(f3 is F3<bool>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    Expect.isFalse(confuse(f3) is F3<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        x3 = confuse(f3);
-      });
-      Expect.throws(() {
-        l3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        l3 = confuse(f3);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m3 is F3<int>);
-      Expect.equals(true, m3 is F3<bool>);
-      Expect.equals(true, confuse(m3) is F3<int>);
-      Expect.equals(true, confuse(m3) is F3<bool>);
-    }
-  }
-
-  /// Function<A>(List<Function> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    Function<A>(List<Function> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is Function<A>(List<Function> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x2, [Function x3]) Function<B extends core.int>()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x2, [Function x3]) Function<B extends core.int>() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x2, [Function x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x1, {core.List<core.int> x}) Function<B extends core.int>()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, {core.List<core.int> x}) Function<B extends core.int>()
-        l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int x1, {core.List<core.int> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(Function x) Function<B extends core.int>()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(Function x) Function<B extends core.int>() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(
-        m7 is Function Function(Function x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int y, [core.List<core.int> x]) Function<B extends core.int>()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, [core.List<core.int> x])
-        Function<B extends core.int>() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int y, [core.List<core.int> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function([int x1]) Function<B extends core.int>()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([int x1]) Function<B extends core.int>() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(
-        m9 is List<Function> Function([int x1]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function({List<Function> x}) Function<B extends core.int>()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function({List<Function> x}) Function<B extends core.int>()
-        l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function({List<Function> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function() Function<B extends core.int>()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function() Function<B extends core.int>() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is List<Function> Function() Function<B extends core.int>());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x1, [List<Function> x]) Function<B extends core.int>()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, [List<Function> x])
-        Function<B extends core.int>() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x1,
-            [List<Function> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function([List<T> x1]) Function<B extends core.int>()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([List<T> x1]) Function<B extends core.int>()
-        l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function([List<T> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x, [Function x1]) Function<B extends core.int>()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x, [Function x1]) Function<B extends core.int>() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int x, [Function x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, {core.List<core.int> x}) Function<B extends core.int>()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, {core.List<core.int> x})
-        Function<B extends core.int>() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int y, {core.List<core.int> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function([Function x]) Function<B extends core.int>()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function([Function x]) Function<B extends core.int>() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function([Function x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(core.List<core.int> x1) Function<B extends core.int>()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(core.List<core.int> x1) Function<B extends core.int>() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(
-        m17 is Function(core.List<core.int> x1) Function<B extends core.int>());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int x2, [int x3]) Function<B extends core.int>()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x2, [int x3]) Function<B extends core.int>() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(
-        m18 is void Function(int x2, [int x3]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x1, {List<Function> x}) Function<B extends core.int>()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, {List<Function> x}) Function<B extends core.int>()
-        l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int x1, {List<Function> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(int x) Function<B extends core.int>()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(int x) Function<B extends core.int>() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is int Function<A>(int x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(Function x) Function<B extends core.int>()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(Function x) Function<B extends core.int>()
-        l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is core.List<core.int> Function<A>(Function x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(List<Function> x) Function<B extends core.int>()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(List<Function> x) Function<B extends core.int>() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(
-        m22 is A Function<A>(List<Function> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// List<B> Function(B x) Function<B extends core.int>()
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    List<B> Function(B x) Function<B extends core.int>() l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is List<B> Function(B x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U34().runTests();
-  new U34<int>(tIsInt: true).runTests();
-  new U34<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type35_test.dart b/tests/language_2/function_type/function_type35_test.dart
deleted file mode 100644
index f9362f030d6..00000000000
--- a/tests/language_2/function_type/function_type35_test.dart
+++ /dev/null
@@ -1,913 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int x0, [core.List<core.int> x]);
-typedef F1<T> = List<Function> Function([List<Function> x]);
-typedef F2<T> = List<T> Function(Function x);
-typedef F3<T> = Function();
-typedef F4<T> = Function<A>(core.List<core.int> x);
-typedef F5<T> = int Function(int x2, [Function x3])
-    Function<B extends core.int>(int x);
-typedef F6<T> = int Function(int x1, {core.List<core.int> x})
-    Function<B extends core.int>(int x);
-typedef F7<T> = Function Function(Function x) Function<B extends core.int>(
-    int x);
-typedef F8<T> = Function Function(int y, [core.List<core.int> x])
-    Function<B extends core.int>(int x);
-typedef F9<T> = List<Function> Function([int x1]) Function<B extends core.int>(
-    int x);
-typedef F10<T> = List<Function> Function({List<Function> x})
-    Function<B extends core.int>(int x);
-typedef F11<T> = List<Function> Function() Function<B extends core.int>(int x);
-typedef F12<T> = core.List<core.int> Function(int x1, [List<Function> x])
-    Function<B extends core.int>(int x);
-typedef F13<T> = core.List<core.int> Function([List<T> x1])
-    Function<B extends core.int>(int x);
-typedef F14<T> = List<T> Function(int x, [Function x1])
-    Function<B extends core.int>(int x);
-typedef F15<T> = List<T> Function(int y, {core.List<core.int> x})
-    Function<B extends core.int>(int x);
-typedef F16<T> = Function([Function x]) Function<B extends core.int>(int x);
-typedef F17<T> = Function(core.List<core.int> x1) Function<B extends core.int>(
-    int x);
-typedef F18<T> = void Function(int x2, [int x3]) Function<B extends core.int>(
-    int x);
-typedef F19<T> = void Function(int x1, {List<Function> x})
-    Function<B extends core.int>(int x);
-typedef F20<T> = int Function<A>(int x) Function<B extends core.int>(int x);
-typedef F21<T> = core.List<core.int> Function<A>(Function x)
-    Function<B extends core.int>(int x);
-typedef F22<T> = A Function<A>(List<Function> x) Function<B extends core.int>(
-    int x);
-typedef F23<T> = List<B> Function(B x) Function<B extends core.int>(int x);
-
-int f0(int x0, [core.List<core.int> x]) => null;
-List<Function> f1([List<Function> x]) => null;
-List<int> f2(Function x) => null;
-f3() => null;
-f4<A>(core.List<core.int> x) => null;
-int Function(int x0, [Function x1]) f5<B extends core.int>(int x) => null;
-int Function(int x0, {core.List<core.int> x}) f6<B extends core.int>(int x) =>
-    null;
-Function Function(Function x) f7<B extends core.int>(int x) => null;
-Function Function(int y, [core.List<core.int> x]) f8<B extends core.int>(
-        int x) =>
-    null;
-List<Function> Function([int x0]) f9<B extends core.int>(int x) => null;
-List<Function> Function({List<Function> x}) f10<B extends core.int>(int x) =>
-    null;
-List<Function> Function() f11<B extends core.int>(int x) => null;
-core.List<core.int> Function(int x0, [List<Function> x])
-    f12<B extends core.int>(int x) => null;
-core.List<core.int> Function([List<int> x0]) f13<B extends core.int>(int x) =>
-    null;
-List<int> Function(int x, [Function x0]) f14<B extends core.int>(int x) => null;
-List<int> Function(int y, {core.List<core.int> x}) f15<B extends core.int>(
-        int x) =>
-    null;
-Function([Function x]) f16<B extends core.int>(int x) => null;
-Function(core.List<core.int> x0) f17<B extends core.int>(int x) => null;
-void Function(int x0, [int x1]) f18<B extends core.int>(int x) => null;
-void Function(int x0, {List<Function> x}) f19<B extends core.int>(int x) =>
-    null;
-int Function<A>(int x) f20<B extends core.int>(int x) => null;
-core.List<core.int> Function<A>(Function x) f21<B extends core.int>(int x) =>
-    null;
-A Function<A>(List<Function> x) f22<B extends core.int>(int x) => null;
-List<B> Function(B x) f23<B extends core.int>(int x) => null;
-
-class U35<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int x0, [core.List<core.int> x]) x0;
-  List<Function> Function([List<Function> x]) x1;
-  List<T> Function(Function x) x2;
-  Function() x3;
-  Function<A>(core.List<core.int> x) x4;
-  int Function(int x2, [Function x3]) Function<B extends core.int>(int x) x5;
-  int Function(int x1, {core.List<core.int> x}) Function<B extends core.int>(
-      int x) x6;
-  Function Function(Function x) Function<B extends core.int>(int x) x7;
-  Function Function(int y, [core.List<core.int> x])
-      Function<B extends core.int>(int x) x8;
-  List<Function> Function([int x1]) Function<B extends core.int>(int x) x9;
-  List<Function> Function({List<Function> x}) Function<B extends core.int>(
-      int x) x10;
-  List<Function> Function() Function<B extends core.int>(int x) x11;
-  core.List<core.int> Function(int x1, [List<Function> x])
-      Function<B extends core.int>(int x) x12;
-  core.List<core.int> Function([List<T> x1]) Function<B extends core.int>(int x)
-      x13;
-  List<T> Function(int x, [Function x1]) Function<B extends core.int>(int x)
-      x14;
-  List<T> Function(int y, {core.List<core.int> x}) Function<B extends core.int>(
-      int x) x15;
-  Function([Function x]) Function<B extends core.int>(int x) x16;
-  Function(core.List<core.int> x1) Function<B extends core.int>(int x) x17;
-  void Function(int x2, [int x3]) Function<B extends core.int>(int x) x18;
-  void Function(int x1, {List<Function> x}) Function<B extends core.int>(int x)
-      x19;
-  int Function<A>(int x) Function<B extends core.int>(int x) x20;
-  core.List<core.int> Function<A>(Function x) Function<B extends core.int>(
-      int x) x21;
-  A Function<A>(List<Function> x) Function<B extends core.int>(int x) x22;
-  List<B> Function(B x) Function<B extends core.int>(int x) x23;
-
-  U35({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int x0, [core.List<core.int> x]) => null;
-  List<Function> m1([List<Function> x]) => null;
-  List<T> m2(Function x) => null;
-  m3() => null;
-  m4<A>(core.List<core.int> x) => null;
-  int Function(int x0, [Function x1]) m5<B extends core.int>(int x) => null;
-  int Function(int x0, {core.List<core.int> x}) m6<B extends core.int>(int x) =>
-      null;
-  Function Function(Function x) m7<B extends core.int>(int x) => null;
-  Function Function(int y, [core.List<core.int> x]) m8<B extends core.int>(
-          int x) =>
-      null;
-  List<Function> Function([int x0]) m9<B extends core.int>(int x) => null;
-  List<Function> Function({List<Function> x}) m10<B extends core.int>(int x) =>
-      null;
-  List<Function> Function() m11<B extends core.int>(int x) => null;
-  core.List<core.int> Function(int x0, [List<Function> x])
-      m12<B extends core.int>(int x) => null;
-  core.List<core.int> Function([List<T> x0]) m13<B extends core.int>(int x) =>
-      null;
-  List<T> Function(int x, [Function x0]) m14<B extends core.int>(int x) => null;
-  List<T> Function(int y, {core.List<core.int> x}) m15<B extends core.int>(
-          int x) =>
-      null;
-  Function([Function x]) m16<B extends core.int>(int x) => null;
-  Function(core.List<core.int> x0) m17<B extends core.int>(int x) => null;
-  void Function(int x0, [int x1]) m18<B extends core.int>(int x) => null;
-  void Function(int x0, {List<Function> x}) m19<B extends core.int>(int x) =>
-      null;
-  int Function<A>(int x) m20<B extends core.int>(int x) => null;
-  core.List<core.int> Function<A>(Function x) m21<B extends core.int>(int x) =>
-      null;
-  A Function<A>(List<Function> x) m22<B extends core.int>(int x) => null;
-  List<B> Function(B x) m23<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int x0, [core.List<core.int> x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int x0, [core.List<core.int> x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int x0, [core.List<core.int> x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function([List<Function> x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([List<Function> x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function([List<Function> x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(Function x)
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(Function x) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(Function x));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// Function()
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function() l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function());
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// Function<A>(core.List<core.int> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    Function<A>(core.List<core.int> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is Function<A>(core.List<core.int> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x2, [Function x3]) Function<B extends core.int>(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x2, [Function x3]) Function<B extends core.int>(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x2, [Function x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x1, {core.List<core.int> x}) Function<B extends core.int>(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, {core.List<core.int> x}) Function<B extends core.int>(
-        int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int x1, {core.List<core.int> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(Function x) Function<B extends core.int>(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(Function x) Function<B extends core.int>(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(Function x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int y, [core.List<core.int> x]) Function<B extends core.int>(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, [core.List<core.int> x])
-        Function<B extends core.int>(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int y, [core.List<core.int> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function([int x1]) Function<B extends core.int>(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([int x1]) Function<B extends core.int>(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function([int x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function({List<Function> x}) Function<B extends core.int>(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function({List<Function> x}) Function<B extends core.int>(
-        int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function({List<Function> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function() Function<B extends core.int>(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function() Function<B extends core.int>(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is List<Function> Function() Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x1, [List<Function> x]) Function<B extends core.int>(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, [List<Function> x])
-        Function<B extends core.int>(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x1,
-            [List<Function> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function([List<T> x1]) Function<B extends core.int>(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([List<T> x1]) Function<B extends core.int>(
-        int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function([List<T> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x, [Function x1]) Function<B extends core.int>(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x, [Function x1]) Function<B extends core.int>(int x)
-        l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int x, [Function x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, {core.List<core.int> x}) Function<B extends core.int>(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, {core.List<core.int> x})
-        Function<B extends core.int>(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int y, {core.List<core.int> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function([Function x]) Function<B extends core.int>(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function([Function x]) Function<B extends core.int>(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function([Function x]) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(core.List<core.int> x1) Function<B extends core.int>(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(core.List<core.int> x1) Function<B extends core.int>(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(core.List<core.int> x1)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int x2, [int x3]) Function<B extends core.int>(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x2, [int x3]) Function<B extends core.int>(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x2, [int x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x1, {List<Function> x}) Function<B extends core.int>(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, {List<Function> x}) Function<B extends core.int>(
-        int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int x1, {List<Function> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(int x) Function<B extends core.int>(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(int x) Function<B extends core.int>(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(
-        m20 is int Function<A>(int x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(Function x) Function<B extends core.int>(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(Function x) Function<B extends core.int>(
-        int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is core.List<core.int> Function<A>(Function x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(List<Function> x) Function<B extends core.int>(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(List<Function> x) Function<B extends core.int>(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is A Function<A>(List<Function> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// List<B> Function(B x) Function<B extends core.int>(int x)
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    List<B> Function(B x) Function<B extends core.int>(int x) l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(
-        m23 is List<B> Function(B x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U35().runTests();
-  new U35<int>(tIsInt: true).runTests();
-  new U35<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type36_test.dart b/tests/language_2/function_type/function_type36_test.dart
deleted file mode 100644
index 5ba9e98d350..00000000000
--- a/tests/language_2/function_type/function_type36_test.dart
+++ /dev/null
@@ -1,871 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int y, [core.List<core.int> x]);
-typedef F1<T> = List<Function> Function(int x0, [List<Function> x]);
-typedef F2<T> = List<T> Function([Function x]);
-typedef F3<T> = void Function(int x);
-typedef F4<T> = Function<A>(List<T> x);
-typedef F5<T> = int Function(int x, [Function x2]) Function();
-typedef F6<T> = int Function(int y, {core.List<core.int> x}) Function();
-typedef F7<T> = Function Function([Function x]) Function();
-typedef F8<T> = Function Function(core.List<core.int> x0) Function();
-typedef F9<T> = List<Function> Function(int x1, [int x2]) Function();
-typedef F10<T> = List<Function> Function(int x0, {List<Function> x}) Function();
-typedef F11<T> = core.List<core.int> Function(int x) Function();
-typedef F12<T> = core.List<core.int> Function(int y, [List<Function> x])
-    Function();
-typedef F13<T> = core.List<core.int> Function(int x1, [List<T> x2]) Function();
-typedef F14<T> = List<T> Function({Function x}) Function();
-typedef F15<T> = List<T> Function(List<T> x) Function();
-typedef F16<T> = Function(int x0, [Function x]) Function();
-typedef F17<T> = Function([core.List<core.int> x1]) Function();
-typedef F18<T> = void Function(int x, [int x2]) Function();
-typedef F19<T> = void Function(int y, {List<Function> x}) Function();
-typedef F20<T> = int Function<A>(Function x) Function();
-typedef F21<T> = core.List<core.int> Function<A>(List<Function> x) Function();
-typedef F22<T> = A Function<A>(core.List<core.int> x) Function();
-typedef F23<T> = void Function(B x) Function<B extends core.int>();
-
-int f0(int y, [core.List<core.int> x]) => null;
-List<Function> f1(int x0, [List<Function> x]) => null;
-List<int> f2([Function x]) => null;
-void f3(int x) => null;
-f4<A>(List<int> x) => null;
-int Function(int x, [Function x0]) f5() => null;
-int Function(int y, {core.List<core.int> x}) f6() => null;
-Function Function([Function x]) f7() => null;
-Function Function(core.List<core.int> x0) f8() => null;
-List<Function> Function(int x0, [int x1]) f9() => null;
-List<Function> Function(int x0, {List<Function> x}) f10() => null;
-core.List<core.int> Function(int x) f11() => null;
-core.List<core.int> Function(int y, [List<Function> x]) f12() => null;
-core.List<core.int> Function(int x0, [List<int> x1]) f13() => null;
-List<int> Function({Function x}) f14() => null;
-List<int> Function(List<int> x) f15() => null;
-Function(int x0, [Function x]) f16() => null;
-Function([core.List<core.int> x0]) f17() => null;
-void Function(int x, [int x0]) f18() => null;
-void Function(int y, {List<Function> x}) f19() => null;
-int Function<A>(Function x) f20() => null;
-core.List<core.int> Function<A>(List<Function> x) f21() => null;
-A Function<A>(core.List<core.int> x) f22() => null;
-void Function(B x) f23<B extends core.int>() => null;
-
-class U36<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int y, [core.List<core.int> x]) x0;
-  List<Function> Function(int x0, [List<Function> x]) x1;
-  List<T> Function([Function x]) x2;
-  void Function(int x) x3;
-  Function<A>(List<T> x) x4;
-  int Function(int x, [Function x2]) Function() x5;
-  int Function(int y, {core.List<core.int> x}) Function() x6;
-  Function Function([Function x]) Function() x7;
-  Function Function(core.List<core.int> x0) Function() x8;
-  List<Function> Function(int x1, [int x2]) Function() x9;
-  List<Function> Function(int x0, {List<Function> x}) Function() x10;
-  core.List<core.int> Function(int x) Function() x11;
-  core.List<core.int> Function(int y, [List<Function> x]) Function() x12;
-  core.List<core.int> Function(int x1, [List<T> x2]) Function() x13;
-  List<T> Function({Function x}) Function() x14;
-  List<T> Function(List<T> x) Function() x15;
-  Function(int x0, [Function x]) Function() x16;
-  Function([core.List<core.int> x1]) Function() x17;
-  void Function(int x, [int x2]) Function() x18;
-  void Function(int y, {List<Function> x}) Function() x19;
-  int Function<A>(Function x) Function() x20;
-  core.List<core.int> Function<A>(List<Function> x) Function() x21;
-  A Function<A>(core.List<core.int> x) Function() x22;
-  void Function(B x) Function<B extends core.int>() x23;
-
-  U36({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int y, [core.List<core.int> x]) => null;
-  List<Function> m1(int x0, [List<Function> x]) => null;
-  List<T> m2([Function x]) => null;
-  void m3(int x) => null;
-  m4<A>(List<T> x) => null;
-  int Function(int x, [Function x0]) m5() => null;
-  int Function(int y, {core.List<core.int> x}) m6() => null;
-  Function Function([Function x]) m7() => null;
-  Function Function(core.List<core.int> x0) m8() => null;
-  List<Function> Function(int x0, [int x1]) m9() => null;
-  List<Function> Function(int x0, {List<Function> x}) m10() => null;
-  core.List<core.int> Function(int x) m11() => null;
-  core.List<core.int> Function(int y, [List<Function> x]) m12() => null;
-  core.List<core.int> Function(int x0, [List<T> x1]) m13() => null;
-  List<T> Function({Function x}) m14() => null;
-  List<T> Function(List<T> x) m15() => null;
-  Function(int x0, [Function x]) m16() => null;
-  Function([core.List<core.int> x0]) m17() => null;
-  void Function(int x, [int x0]) m18() => null;
-  void Function(int y, {List<Function> x}) m19() => null;
-  int Function<A>(Function x) m20() => null;
-  core.List<core.int> Function<A>(List<Function> x) m21() => null;
-  A Function<A>(core.List<core.int> x) m22() => null;
-  void Function(B x) m23<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int y, [core.List<core.int> x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, [core.List<core.int> x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int y, [core.List<core.int> x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(int x0, [List<Function> x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x0, [List<Function> x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(int x0, [List<Function> x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function([Function x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([Function x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function([Function x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(int x)
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int x) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int x));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// Function<A>(List<T> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    Function<A>(List<T> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is Function<A>(List<T> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-    // The static function has its T always set to int.
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isFalse(f4 is F4<bool>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    Expect.isFalse(confuse(f4) is F4<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        x4 = confuse(f4);
-      });
-      Expect.throws(() {
-        l4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        l4 = confuse(f4);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m4 is F4<int>);
-      Expect.equals(true, m4 is F4<bool>);
-      Expect.equals(true, confuse(m4) is F4<int>);
-      Expect.equals(true, confuse(m4) is F4<bool>);
-    }
-  }
-
-  /// int Function(int x, [Function x2]) Function()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x, [Function x2]) Function() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x, [Function x2]) Function());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int y, {core.List<core.int> x}) Function()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, {core.List<core.int> x}) Function() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is int Function(int y, {core.List<core.int> x}) Function());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function([Function x]) Function()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function([Function x]) Function() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function([Function x]) Function());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(core.List<core.int> x0) Function()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(core.List<core.int> x0) Function() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(core.List<core.int> x0) Function());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int x1, [int x2]) Function()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, [int x2]) Function() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int x1, [int x2]) Function());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x0, {List<Function> x}) Function()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x0, {List<Function> x}) Function() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(
-        m10 is List<Function> Function(int x0, {List<Function> x}) Function());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int x) Function()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x) Function() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(int x) Function());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int y, [List<Function> x]) Function()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, [List<Function> x]) Function() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int y, [List<Function> x])
-        Function());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int x1, [List<T> x2]) Function()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, [List<T> x2]) Function() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(
-        m13 is core.List<core.int> Function(int x1, [List<T> x2]) Function());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function({Function x}) Function()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function({Function x}) Function() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function({Function x}) Function());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(List<T> x) Function()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(List<T> x) Function() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(List<T> x) Function());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x0, [Function x]) Function()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x0, [Function x]) Function() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x0, [Function x]) Function());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function([core.List<core.int> x1]) Function()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function([core.List<core.int> x1]) Function() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function([core.List<core.int> x1]) Function());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int x, [int x2]) Function()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x, [int x2]) Function() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x, [int x2]) Function());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int y, {List<Function> x}) Function()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, {List<Function> x}) Function() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int y, {List<Function> x}) Function());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(Function x) Function()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(Function x) Function() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is int Function<A>(Function x) Function());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(List<Function> x) Function()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(List<Function> x) Function() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(
-        m21 is core.List<core.int> Function<A>(List<Function> x) Function());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(core.List<core.int> x) Function()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(core.List<core.int> x) Function() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is A Function<A>(core.List<core.int> x) Function());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// void Function(B x) Function<B extends core.int>()
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    void Function(B x) Function<B extends core.int>() l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is void Function(B x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U36().runTests();
-  new U36<int>(tIsInt: true).runTests();
-  new U36<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type37_test.dart b/tests/language_2/function_type/function_type37_test.dart
deleted file mode 100644
index 9f2b14d910b..00000000000
--- a/tests/language_2/function_type/function_type37_test.dart
+++ /dev/null
@@ -1,853 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(core.List<core.int> x0);
-typedef F1<T> = List<Function> Function(int y, [List<Function> x]);
-typedef F2<T> = List<T> Function(int x0, [Function x]);
-typedef F3<T> = void Function([int x]);
-typedef F4<T> = Function<A>();
-typedef F5<T> = int Function(int x, [Function x1]) Function(int x);
-typedef F6<T> = int Function(int y, {core.List<core.int> x}) Function(int x);
-typedef F7<T> = Function Function([Function x]) Function(int x);
-typedef F8<T> = Function Function(core.List<core.int> x1) Function(int x);
-typedef F9<T> = List<Function> Function(int x2, [int x3]) Function(int x);
-typedef F10<T> = List<Function> Function(int x1, {List<Function> x}) Function(
-    int x);
-typedef F11<T> = core.List<core.int> Function(int x) Function(int x);
-typedef F12<T> = core.List<core.int> Function(int y, [List<Function> x])
-    Function(int x);
-typedef F13<T> = core.List<core.int> Function(int x2, [List<T> x3]) Function(
-    int x);
-typedef F14<T> = List<T> Function({Function x}) Function(int x);
-typedef F15<T> = List<T> Function(List<T> x) Function(int x);
-typedef F16<T> = Function(int x1, [Function x]) Function(int x);
-typedef F17<T> = Function([core.List<core.int> x1]) Function(int x);
-typedef F18<T> = void Function(int x, [int x1]) Function(int x);
-typedef F19<T> = void Function(int y, {List<Function> x}) Function(int x);
-typedef F20<T> = int Function<A>(Function x) Function(int x);
-typedef F21<T> = core.List<core.int> Function<A>(List<Function> x) Function(
-    int x);
-typedef F22<T> = A Function<A>(core.List<core.int> x) Function(int x);
-typedef F23<T> = void Function(B x) Function<B extends core.int>(int x);
-
-int f0(core.List<core.int> x0) => null;
-List<Function> f1(int y, [List<Function> x]) => null;
-List<int> f2(int x0, [Function x]) => null;
-void f3([int x]) => null;
-f4<A>() => null;
-int Function(int x, [Function x0]) f5(int x) => null;
-int Function(int y, {core.List<core.int> x}) f6(int x) => null;
-Function Function([Function x]) f7(int x) => null;
-Function Function(core.List<core.int> x0) f8(int x) => null;
-List<Function> Function(int x0, [int x1]) f9(int x) => null;
-List<Function> Function(int x0, {List<Function> x}) f10(int x) => null;
-core.List<core.int> Function(int x) f11(int x) => null;
-core.List<core.int> Function(int y, [List<Function> x]) f12(int x) => null;
-core.List<core.int> Function(int x0, [List<int> x1]) f13(int x) => null;
-List<int> Function({Function x}) f14(int x) => null;
-List<int> Function(List<int> x) f15(int x) => null;
-Function(int x0, [Function x]) f16(int x) => null;
-Function([core.List<core.int> x0]) f17(int x) => null;
-void Function(int x, [int x0]) f18(int x) => null;
-void Function(int y, {List<Function> x}) f19(int x) => null;
-int Function<A>(Function x) f20(int x) => null;
-core.List<core.int> Function<A>(List<Function> x) f21(int x) => null;
-A Function<A>(core.List<core.int> x) f22(int x) => null;
-void Function(B x) f23<B extends core.int>(int x) => null;
-
-class U37<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(core.List<core.int> x0) x0;
-  List<Function> Function(int y, [List<Function> x]) x1;
-  List<T> Function(int x0, [Function x]) x2;
-  void Function([int x]) x3;
-  Function<A>() x4;
-  int Function(int x, [Function x1]) Function(int x) x5;
-  int Function(int y, {core.List<core.int> x}) Function(int x) x6;
-  Function Function([Function x]) Function(int x) x7;
-  Function Function(core.List<core.int> x1) Function(int x) x8;
-  List<Function> Function(int x2, [int x3]) Function(int x) x9;
-  List<Function> Function(int x1, {List<Function> x}) Function(int x) x10;
-  core.List<core.int> Function(int x) Function(int x) x11;
-  core.List<core.int> Function(int y, [List<Function> x]) Function(int x) x12;
-  core.List<core.int> Function(int x2, [List<T> x3]) Function(int x) x13;
-  List<T> Function({Function x}) Function(int x) x14;
-  List<T> Function(List<T> x) Function(int x) x15;
-  Function(int x1, [Function x]) Function(int x) x16;
-  Function([core.List<core.int> x1]) Function(int x) x17;
-  void Function(int x, [int x1]) Function(int x) x18;
-  void Function(int y, {List<Function> x}) Function(int x) x19;
-  int Function<A>(Function x) Function(int x) x20;
-  core.List<core.int> Function<A>(List<Function> x) Function(int x) x21;
-  A Function<A>(core.List<core.int> x) Function(int x) x22;
-  void Function(B x) Function<B extends core.int>(int x) x23;
-
-  U37({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(core.List<core.int> x0) => null;
-  List<Function> m1(int y, [List<Function> x]) => null;
-  List<T> m2(int x0, [Function x]) => null;
-  void m3([int x]) => null;
-  m4<A>() => null;
-  int Function(int x, [Function x0]) m5(int x) => null;
-  int Function(int y, {core.List<core.int> x}) m6(int x) => null;
-  Function Function([Function x]) m7(int x) => null;
-  Function Function(core.List<core.int> x0) m8(int x) => null;
-  List<Function> Function(int x0, [int x1]) m9(int x) => null;
-  List<Function> Function(int x0, {List<Function> x}) m10(int x) => null;
-  core.List<core.int> Function(int x) m11(int x) => null;
-  core.List<core.int> Function(int y, [List<Function> x]) m12(int x) => null;
-  core.List<core.int> Function(int x0, [List<T> x1]) m13(int x) => null;
-  List<T> Function({Function x}) m14(int x) => null;
-  List<T> Function(List<T> x) m15(int x) => null;
-  Function(int x0, [Function x]) m16(int x) => null;
-  Function([core.List<core.int> x0]) m17(int x) => null;
-  void Function(int x, [int x0]) m18(int x) => null;
-  void Function(int y, {List<Function> x}) m19(int x) => null;
-  int Function<A>(Function x) m20(int x) => null;
-  core.List<core.int> Function<A>(List<Function> x) m21(int x) => null;
-  A Function<A>(core.List<core.int> x) m22(int x) => null;
-  void Function(B x) m23<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(core.List<core.int> x0)
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(core.List<core.int> x0) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(core.List<core.int> x0));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(int y, [List<Function> x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, [List<Function> x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(int y, [List<Function> x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(int x0, [Function x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x0, [Function x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int x0, [Function x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function([int x])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function([int x]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function([int x]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// Function<A>()
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    Function<A>() l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is Function<A>());
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x, [Function x1]) Function(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x, [Function x1]) Function(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x, [Function x1]) Function(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int y, {core.List<core.int> x}) Function(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, {core.List<core.int> x}) Function(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is int Function(int y, {core.List<core.int> x}) Function(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function([Function x]) Function(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function([Function x]) Function(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function([Function x]) Function(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(core.List<core.int> x1) Function(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(core.List<core.int> x1) Function(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(
-        m8 is Function Function(core.List<core.int> x1) Function(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int x2, [int x3]) Function(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x2, [int x3]) Function(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(
-        m9 is List<Function> Function(int x2, [int x3]) Function(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x1, {List<Function> x}) Function(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, {List<Function> x}) Function(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x1, {List<Function> x})
-        Function(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int x) Function(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x) Function(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(int x) Function(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int y, [List<Function> x]) Function(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, [List<Function> x]) Function(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int y, [List<Function> x])
-        Function(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int x2, [List<T> x3]) Function(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x2, [List<T> x3]) Function(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(int x2, [List<T> x3])
-        Function(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function({Function x}) Function(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function({Function x}) Function(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function({Function x}) Function(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(List<T> x) Function(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(List<T> x) Function(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(List<T> x) Function(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x1, [Function x]) Function(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, [Function x]) Function(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x1, [Function x]) Function(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function([core.List<core.int> x1]) Function(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function([core.List<core.int> x1]) Function(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function([core.List<core.int> x1]) Function(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int x, [int x1]) Function(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x, [int x1]) Function(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x, [int x1]) Function(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int y, {List<Function> x}) Function(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, {List<Function> x}) Function(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(
-        m19 is void Function(int y, {List<Function> x}) Function(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(Function x) Function(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(Function x) Function(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is int Function<A>(Function x) Function(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(List<Function> x) Function(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(List<Function> x) Function(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is core.List<core.int> Function<A>(List<Function> x)
-        Function(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(core.List<core.int> x) Function(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(core.List<core.int> x) Function(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is A Function<A>(core.List<core.int> x) Function(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// void Function(B x) Function<B extends core.int>(int x)
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    void Function(B x) Function<B extends core.int>(int x) l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(
-        m23 is void Function(B x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U37().runTests();
-  new U37<int>(tIsInt: true).runTests();
-  new U37<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type38_test.dart b/tests/language_2/function_type/function_type38_test.dart
deleted file mode 100644
index 26cc22af015..00000000000
--- a/tests/language_2/function_type/function_type38_test.dart
+++ /dev/null
@@ -1,888 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function([core.List<core.int> x1]);
-typedef F1<T> = List<Function> Function(List<Function> x0);
-typedef F2<T> = List<T> Function(int y, [Function x]);
-typedef F3<T> = void Function(int x0, [int x]);
-typedef F4<T> = Function<A>(A x);
-typedef F5<T> = int Function(int x, [Function x1])
-    Function<B extends core.int>();
-typedef F6<T> = int Function(int y, {core.List<core.int> x})
-    Function<B extends core.int>();
-typedef F7<T> = Function Function([Function x]) Function<B extends core.int>();
-typedef F8<T> = Function Function(core.List<core.int> x1)
-    Function<B extends core.int>();
-typedef F9<T> = List<Function> Function(int x2, [int x3])
-    Function<B extends core.int>();
-typedef F10<T> = List<Function> Function(int x1, {List<Function> x})
-    Function<B extends core.int>();
-typedef F11<T> = core.List<core.int> Function(int x)
-    Function<B extends core.int>();
-typedef F12<T> = core.List<core.int> Function(int y, [List<Function> x])
-    Function<B extends core.int>();
-typedef F13<T> = core.List<core.int> Function(int x2, [List<T> x3])
-    Function<B extends core.int>();
-typedef F14<T> = List<T> Function({Function x}) Function<B extends core.int>();
-typedef F15<T> = List<T> Function(List<T> x) Function<B extends core.int>();
-typedef F16<T> = Function(int x1, [Function x]) Function<B extends core.int>();
-typedef F17<T> = Function([core.List<core.int> x1])
-    Function<B extends core.int>();
-typedef F18<T> = void Function(int x, [int x1]) Function<B extends core.int>();
-typedef F19<T> = void Function(int y, {List<Function> x})
-    Function<B extends core.int>();
-typedef F20<T> = int Function<A>(Function x) Function<B extends core.int>();
-typedef F21<T> = core.List<core.int> Function<A>(List<Function> x)
-    Function<B extends core.int>();
-typedef F22<T> = A Function<A>(core.List<core.int> x)
-    Function<B extends core.int>();
-typedef F23<T> = B Function(int x) Function<B extends core.int>();
-
-int f0([core.List<core.int> x0]) => null;
-List<Function> f1(List<Function> x0) => null;
-List<int> f2(int y, [Function x]) => null;
-void f3(int x0, [int x]) => null;
-f4<A>(A x) => null;
-int Function(int x, [Function x0]) f5<B extends core.int>() => null;
-int Function(int y, {core.List<core.int> x}) f6<B extends core.int>() => null;
-Function Function([Function x]) f7<B extends core.int>() => null;
-Function Function(core.List<core.int> x0) f8<B extends core.int>() => null;
-List<Function> Function(int x0, [int x1]) f9<B extends core.int>() => null;
-List<Function> Function(int x0, {List<Function> x}) f10<B extends core.int>() =>
-    null;
-core.List<core.int> Function(int x) f11<B extends core.int>() => null;
-core.List<core.int> Function(int y, [List<Function> x])
-    f12<B extends core.int>() => null;
-core.List<core.int> Function(int x0, [List<int> x1])
-    f13<B extends core.int>() => null;
-List<int> Function({Function x}) f14<B extends core.int>() => null;
-List<int> Function(List<int> x) f15<B extends core.int>() => null;
-Function(int x0, [Function x]) f16<B extends core.int>() => null;
-Function([core.List<core.int> x0]) f17<B extends core.int>() => null;
-void Function(int x, [int x0]) f18<B extends core.int>() => null;
-void Function(int y, {List<Function> x}) f19<B extends core.int>() => null;
-int Function<A>(Function x) f20<B extends core.int>() => null;
-core.List<core.int> Function<A>(List<Function> x) f21<B extends core.int>() =>
-    null;
-A Function<A>(core.List<core.int> x) f22<B extends core.int>() => null;
-B Function(int x) f23<B extends core.int>() => null;
-
-class U38<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function([core.List<core.int> x1]) x0;
-  List<Function> Function(List<Function> x0) x1;
-  List<T> Function(int y, [Function x]) x2;
-  void Function(int x0, [int x]) x3;
-  Function<A>(A x) x4;
-  int Function(int x, [Function x1]) Function<B extends core.int>() x5;
-  int Function(int y, {core.List<core.int> x}) Function<B extends core.int>()
-      x6;
-  Function Function([Function x]) Function<B extends core.int>() x7;
-  Function Function(core.List<core.int> x1) Function<B extends core.int>() x8;
-  List<Function> Function(int x2, [int x3]) Function<B extends core.int>() x9;
-  List<Function> Function(int x1, {List<Function> x})
-      Function<B extends core.int>() x10;
-  core.List<core.int> Function(int x) Function<B extends core.int>() x11;
-  core.List<core.int> Function(int y, [List<Function> x])
-      Function<B extends core.int>() x12;
-  core.List<core.int> Function(int x2, [List<T> x3])
-      Function<B extends core.int>() x13;
-  List<T> Function({Function x}) Function<B extends core.int>() x14;
-  List<T> Function(List<T> x) Function<B extends core.int>() x15;
-  Function(int x1, [Function x]) Function<B extends core.int>() x16;
-  Function([core.List<core.int> x1]) Function<B extends core.int>() x17;
-  void Function(int x, [int x1]) Function<B extends core.int>() x18;
-  void Function(int y, {List<Function> x}) Function<B extends core.int>() x19;
-  int Function<A>(Function x) Function<B extends core.int>() x20;
-  core.List<core.int> Function<A>(List<Function> x)
-      Function<B extends core.int>() x21;
-  A Function<A>(core.List<core.int> x) Function<B extends core.int>() x22;
-  B Function(int x) Function<B extends core.int>() x23;
-
-  U38({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0([core.List<core.int> x0]) => null;
-  List<Function> m1(List<Function> x0) => null;
-  List<T> m2(int y, [Function x]) => null;
-  void m3(int x0, [int x]) => null;
-  m4<A>(A x) => null;
-  int Function(int x, [Function x0]) m5<B extends core.int>() => null;
-  int Function(int y, {core.List<core.int> x}) m6<B extends core.int>() => null;
-  Function Function([Function x]) m7<B extends core.int>() => null;
-  Function Function(core.List<core.int> x0) m8<B extends core.int>() => null;
-  List<Function> Function(int x0, [int x1]) m9<B extends core.int>() => null;
-  List<Function> Function(int x0, {List<Function> x})
-      m10<B extends core.int>() => null;
-  core.List<core.int> Function(int x) m11<B extends core.int>() => null;
-  core.List<core.int> Function(int y, [List<Function> x])
-      m12<B extends core.int>() => null;
-  core.List<core.int> Function(int x0, [List<T> x1])
-      m13<B extends core.int>() => null;
-  List<T> Function({Function x}) m14<B extends core.int>() => null;
-  List<T> Function(List<T> x) m15<B extends core.int>() => null;
-  Function(int x0, [Function x]) m16<B extends core.int>() => null;
-  Function([core.List<core.int> x0]) m17<B extends core.int>() => null;
-  void Function(int x, [int x0]) m18<B extends core.int>() => null;
-  void Function(int y, {List<Function> x}) m19<B extends core.int>() => null;
-  int Function<A>(Function x) m20<B extends core.int>() => null;
-  core.List<core.int> Function<A>(List<Function> x) m21<B extends core.int>() =>
-      null;
-  A Function<A>(core.List<core.int> x) m22<B extends core.int>() => null;
-  B Function(int x) m23<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function([core.List<core.int> x1])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function([core.List<core.int> x1]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function([core.List<core.int> x1]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(List<Function> x0)
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(List<Function> x0) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(List<Function> x0));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(int y, [Function x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, [Function x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int y, [Function x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(int x0, [int x])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int x0, [int x]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int x0, [int x]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// Function<A>(A x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    Function<A>(A x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is Function<A>(A x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x, [Function x1]) Function<B extends core.int>()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x, [Function x1]) Function<B extends core.int>() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x, [Function x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int y, {core.List<core.int> x}) Function<B extends core.int>()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, {core.List<core.int> x}) Function<B extends core.int>()
-        l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int y, {core.List<core.int> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function([Function x]) Function<B extends core.int>()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function([Function x]) Function<B extends core.int>() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(
-        m7 is Function Function([Function x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(core.List<core.int> x1) Function<B extends core.int>()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(core.List<core.int> x1) Function<B extends core.int>() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(core.List<core.int> x1)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int x2, [int x3]) Function<B extends core.int>()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x2, [int x3]) Function<B extends core.int>() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int x2, [int x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x1, {List<Function> x}) Function<B extends core.int>()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, {List<Function> x})
-        Function<B extends core.int>() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x1, {List<Function> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int x) Function<B extends core.int>()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x) Function<B extends core.int>() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(int x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int y, [List<Function> x]) Function<B extends core.int>()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, [List<Function> x])
-        Function<B extends core.int>() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int y, [List<Function> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int x2, [List<T> x3]) Function<B extends core.int>()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x2, [List<T> x3])
-        Function<B extends core.int>() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(int x2, [List<T> x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function({Function x}) Function<B extends core.int>()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function({Function x}) Function<B extends core.int>() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(
-        m14 is List<T> Function({Function x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(List<T> x) Function<B extends core.int>()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(List<T> x) Function<B extends core.int>() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(
-        m15 is List<T> Function(List<T> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x1, [Function x]) Function<B extends core.int>()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, [Function x]) Function<B extends core.int>() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function(int x1, [Function x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function([core.List<core.int> x1]) Function<B extends core.int>()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function([core.List<core.int> x1]) Function<B extends core.int>() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function([core.List<core.int> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int x, [int x1]) Function<B extends core.int>()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x, [int x1]) Function<B extends core.int>() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(
-        m18 is void Function(int x, [int x1]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int y, {List<Function> x}) Function<B extends core.int>()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, {List<Function> x}) Function<B extends core.int>() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int y, {List<Function> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(Function x) Function<B extends core.int>()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(Function x) Function<B extends core.int>() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(
-        m20 is int Function<A>(Function x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(List<Function> x) Function<B extends core.int>()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(List<Function> x)
-        Function<B extends core.int>() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is core.List<core.int> Function<A>(List<Function> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(core.List<core.int> x) Function<B extends core.int>()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(core.List<core.int> x) Function<B extends core.int>() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is A Function<A>(core.List<core.int> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// B Function(int x) Function<B extends core.int>()
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    B Function(int x) Function<B extends core.int>() l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is B Function(int x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U38().runTests();
-  new U38<int>(tIsInt: true).runTests();
-  new U38<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type39_test.dart b/tests/language_2/function_type/function_type39_test.dart
deleted file mode 100644
index a0792677650..00000000000
--- a/tests/language_2/function_type/function_type39_test.dart
+++ /dev/null
@@ -1,913 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int x1, [core.List<core.int> x2]);
-typedef F1<T> = List<Function> Function([List<Function> x1]);
-typedef F2<T> = List<T> Function(Function x0);
-typedef F3<T> = void Function(int y, [int x]);
-typedef F4<T> = Function<A>(List<A> x);
-typedef F5<T> = int Function(int x, [Function x1]) Function<B extends core.int>(
-    int x);
-typedef F6<T> = int Function(int y, {core.List<core.int> x})
-    Function<B extends core.int>(int x);
-typedef F7<T> = Function Function([Function x]) Function<B extends core.int>(
-    int x);
-typedef F8<T> = Function Function(core.List<core.int> x1)
-    Function<B extends core.int>(int x);
-typedef F9<T> = List<Function> Function(int x2, [int x3])
-    Function<B extends core.int>(int x);
-typedef F10<T> = List<Function> Function(int x1, {List<Function> x})
-    Function<B extends core.int>(int x);
-typedef F11<T> = core.List<core.int> Function(int x)
-    Function<B extends core.int>(int x);
-typedef F12<T> = core.List<core.int> Function(int y, [List<Function> x])
-    Function<B extends core.int>(int x);
-typedef F13<T> = core.List<core.int> Function(int x2, [List<T> x3])
-    Function<B extends core.int>(int x);
-typedef F14<T> = List<T> Function({Function x}) Function<B extends core.int>(
-    int x);
-typedef F15<T> = List<T> Function(List<T> x) Function<B extends core.int>(
-    int x);
-typedef F16<T> = Function(int x1, [Function x]) Function<B extends core.int>(
-    int x);
-typedef F17<T> = Function([core.List<core.int> x1])
-    Function<B extends core.int>(int x);
-typedef F18<T> = void Function(int x, [int x1]) Function<B extends core.int>(
-    int x);
-typedef F19<T> = void Function(int y, {List<Function> x})
-    Function<B extends core.int>(int x);
-typedef F20<T> = int Function<A>(Function x) Function<B extends core.int>(
-    int x);
-typedef F21<T> = core.List<core.int> Function<A>(List<Function> x)
-    Function<B extends core.int>(int x);
-typedef F22<T> = A Function<A>(core.List<core.int> x)
-    Function<B extends core.int>(int x);
-typedef F23<T> = B Function(int x) Function<B extends core.int>(int x);
-
-int f0(int x0, [core.List<core.int> x1]) => null;
-List<Function> f1([List<Function> x0]) => null;
-List<int> f2(Function x0) => null;
-void f3(int y, [int x]) => null;
-f4<A>(List<A> x) => null;
-int Function(int x, [Function x0]) f5<B extends core.int>(int x) => null;
-int Function(int y, {core.List<core.int> x}) f6<B extends core.int>(int x) =>
-    null;
-Function Function([Function x]) f7<B extends core.int>(int x) => null;
-Function Function(core.List<core.int> x0) f8<B extends core.int>(int x) => null;
-List<Function> Function(int x0, [int x1]) f9<B extends core.int>(int x) => null;
-List<Function> Function(int x0, {List<Function> x}) f10<B extends core.int>(
-        int x) =>
-    null;
-core.List<core.int> Function(int x) f11<B extends core.int>(int x) => null;
-core.List<core.int> Function(int y, [List<Function> x]) f12<B extends core.int>(
-        int x) =>
-    null;
-core.List<core.int> Function(int x0, [List<int> x1]) f13<B extends core.int>(
-        int x) =>
-    null;
-List<int> Function({Function x}) f14<B extends core.int>(int x) => null;
-List<int> Function(List<int> x) f15<B extends core.int>(int x) => null;
-Function(int x0, [Function x]) f16<B extends core.int>(int x) => null;
-Function([core.List<core.int> x0]) f17<B extends core.int>(int x) => null;
-void Function(int x, [int x0]) f18<B extends core.int>(int x) => null;
-void Function(int y, {List<Function> x}) f19<B extends core.int>(int x) => null;
-int Function<A>(Function x) f20<B extends core.int>(int x) => null;
-core.List<core.int> Function<A>(List<Function> x) f21<B extends core.int>(
-        int x) =>
-    null;
-A Function<A>(core.List<core.int> x) f22<B extends core.int>(int x) => null;
-B Function(int x) f23<B extends core.int>(int x) => null;
-
-class U39<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int x1, [core.List<core.int> x2]) x0;
-  List<Function> Function([List<Function> x1]) x1;
-  List<T> Function(Function x0) x2;
-  void Function(int y, [int x]) x3;
-  Function<A>(List<A> x) x4;
-  int Function(int x, [Function x1]) Function<B extends core.int>(int x) x5;
-  int Function(int y, {core.List<core.int> x}) Function<B extends core.int>(
-      int x) x6;
-  Function Function([Function x]) Function<B extends core.int>(int x) x7;
-  Function Function(core.List<core.int> x1) Function<B extends core.int>(int x)
-      x8;
-  List<Function> Function(int x2, [int x3]) Function<B extends core.int>(int x)
-      x9;
-  List<Function> Function(int x1, {List<Function> x})
-      Function<B extends core.int>(int x) x10;
-  core.List<core.int> Function(int x) Function<B extends core.int>(int x) x11;
-  core.List<core.int> Function(int y, [List<Function> x])
-      Function<B extends core.int>(int x) x12;
-  core.List<core.int> Function(int x2, [List<T> x3])
-      Function<B extends core.int>(int x) x13;
-  List<T> Function({Function x}) Function<B extends core.int>(int x) x14;
-  List<T> Function(List<T> x) Function<B extends core.int>(int x) x15;
-  Function(int x1, [Function x]) Function<B extends core.int>(int x) x16;
-  Function([core.List<core.int> x1]) Function<B extends core.int>(int x) x17;
-  void Function(int x, [int x1]) Function<B extends core.int>(int x) x18;
-  void Function(int y, {List<Function> x}) Function<B extends core.int>(int x)
-      x19;
-  int Function<A>(Function x) Function<B extends core.int>(int x) x20;
-  core.List<core.int> Function<A>(List<Function> x)
-      Function<B extends core.int>(int x) x21;
-  A Function<A>(core.List<core.int> x) Function<B extends core.int>(int x) x22;
-  B Function(int x) Function<B extends core.int>(int x) x23;
-
-  U39({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int x0, [core.List<core.int> x1]) => null;
-  List<Function> m1([List<Function> x0]) => null;
-  List<T> m2(Function x0) => null;
-  void m3(int y, [int x]) => null;
-  m4<A>(List<A> x) => null;
-  int Function(int x, [Function x0]) m5<B extends core.int>(int x) => null;
-  int Function(int y, {core.List<core.int> x}) m6<B extends core.int>(int x) =>
-      null;
-  Function Function([Function x]) m7<B extends core.int>(int x) => null;
-  Function Function(core.List<core.int> x0) m8<B extends core.int>(int x) =>
-      null;
-  List<Function> Function(int x0, [int x1]) m9<B extends core.int>(int x) =>
-      null;
-  List<Function> Function(int x0, {List<Function> x}) m10<B extends core.int>(
-          int x) =>
-      null;
-  core.List<core.int> Function(int x) m11<B extends core.int>(int x) => null;
-  core.List<core.int> Function(int y, [List<Function> x])
-      m12<B extends core.int>(int x) => null;
-  core.List<core.int> Function(int x0, [List<T> x1]) m13<B extends core.int>(
-          int x) =>
-      null;
-  List<T> Function({Function x}) m14<B extends core.int>(int x) => null;
-  List<T> Function(List<T> x) m15<B extends core.int>(int x) => null;
-  Function(int x0, [Function x]) m16<B extends core.int>(int x) => null;
-  Function([core.List<core.int> x0]) m17<B extends core.int>(int x) => null;
-  void Function(int x, [int x0]) m18<B extends core.int>(int x) => null;
-  void Function(int y, {List<Function> x}) m19<B extends core.int>(int x) =>
-      null;
-  int Function<A>(Function x) m20<B extends core.int>(int x) => null;
-  core.List<core.int> Function<A>(List<Function> x) m21<B extends core.int>(
-          int x) =>
-      null;
-  A Function<A>(core.List<core.int> x) m22<B extends core.int>(int x) => null;
-  B Function(int x) m23<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int x1, [core.List<core.int> x2])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, [core.List<core.int> x2]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int x1, [core.List<core.int> x2]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function([List<Function> x1])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([List<Function> x1]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function([List<Function> x1]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(Function x0)
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(Function x0) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(Function x0));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(int y, [int x])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, [int x]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int y, [int x]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// Function<A>(List<A> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    Function<A>(List<A> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is Function<A>(List<A> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x, [Function x1]) Function<B extends core.int>(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x, [Function x1]) Function<B extends core.int>(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x, [Function x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int y, {core.List<core.int> x}) Function<B extends core.int>(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, {core.List<core.int> x}) Function<B extends core.int>(
-        int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int y, {core.List<core.int> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function([Function x]) Function<B extends core.int>(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function([Function x]) Function<B extends core.int>(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function([Function x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(core.List<core.int> x1) Function<B extends core.int>(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(core.List<core.int> x1) Function<B extends core.int>(
-        int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(core.List<core.int> x1)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int x2, [int x3]) Function<B extends core.int>(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x2, [int x3]) Function<B extends core.int>(
-        int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int x2, [int x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x1, {List<Function> x}) Function<B extends core.int>(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, {List<Function> x})
-        Function<B extends core.int>(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x1, {List<Function> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int x) Function<B extends core.int>(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x) Function<B extends core.int>(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(int x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int y, [List<Function> x]) Function<B extends core.int>(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, [List<Function> x])
-        Function<B extends core.int>(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int y, [List<Function> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int x2, [List<T> x3]) Function<B extends core.int>(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x2, [List<T> x3])
-        Function<B extends core.int>(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(int x2, [List<T> x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function({Function x}) Function<B extends core.int>(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function({Function x}) Function<B extends core.int>(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function({Function x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(List<T> x) Function<B extends core.int>(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(List<T> x) Function<B extends core.int>(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(
-        m15 is List<T> Function(List<T> x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x1, [Function x]) Function<B extends core.int>(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, [Function x]) Function<B extends core.int>(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x1, [Function x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function([core.List<core.int> x1]) Function<B extends core.int>(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function([core.List<core.int> x1]) Function<B extends core.int>(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function([core.List<core.int> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int x, [int x1]) Function<B extends core.int>(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x, [int x1]) Function<B extends core.int>(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x, [int x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int y, {List<Function> x}) Function<B extends core.int>(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, {List<Function> x}) Function<B extends core.int>(int x)
-        l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int y, {List<Function> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(Function x) Function<B extends core.int>(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(Function x) Function<B extends core.int>(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(
-        m20 is int Function<A>(Function x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(List<Function> x) Function<B extends core.int>(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(List<Function> x)
-        Function<B extends core.int>(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is core.List<core.int> Function<A>(List<Function> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(core.List<core.int> x) Function<B extends core.int>(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(core.List<core.int> x) Function<B extends core.int>(int x)
-        l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is A Function<A>(core.List<core.int> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// B Function(int x) Function<B extends core.int>(int x)
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    B Function(int x) Function<B extends core.int>(int x) l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is B Function(int x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U39().runTests();
-  new U39<int>(tIsInt: true).runTests();
-  new U39<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type3_test.dart b/tests/language_2/function_type/function_type3_test.dart
deleted file mode 100644
index 52ae455adb4..00000000000
--- a/tests/language_2/function_type/function_type3_test.dart
+++ /dev/null
@@ -1,988 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int y, [int x]);
-typedef F1<T> = Function Function(int y, [List<T> x]);
-typedef F2<T> = core.List<core.int> Function(int x0, [core.List<core.int> x]);
-typedef F3<T> = Function([List<Function> x]);
-typedef F4<T> = Function Function<A>(core.List<core.int> x);
-typedef F5<T> = int Function(int x1, {int x}) Function<B extends core.int>(
-    int x);
-typedef F6<T> = int Function([core.List<core.int> x])
-    Function<B extends core.int>(int x);
-typedef F7<T> = Function Function(int y, [int x]) Function<B extends core.int>(
-    int x);
-typedef F8<T> = Function Function(int x2, [List<Function> x3])
-    Function<B extends core.int>(int x);
-typedef F9<T> = Function Function(int x1, {List<T> x})
-    Function<B extends core.int>(int x);
-typedef F10<T> = List<Function> Function(List<Function> x)
-    Function<B extends core.int>(int x);
-typedef F11<T> = List<Function> Function(int y, [List<T> x])
-    Function<B extends core.int>(int x);
-typedef F12<T> = core.List<core.int> Function([Function x1])
-    Function<B extends core.int>(int x);
-typedef F13<T> = core.List<core.int> Function({core.List<core.int> x})
-    Function<B extends core.int>(int x);
-typedef F14<T> = List<T> Function(int y, {int x}) Function<B extends core.int>(
-    int x);
-typedef F15<T> = List<T> Function(int x1, [core.List<core.int> x])
-    Function<B extends core.int>(int x);
-typedef F16<T> = Function(int x1) Function<B extends core.int>(int x);
-typedef F17<T> = Function(int x, [List<Function> x1])
-    Function<B extends core.int>(int x);
-typedef F18<T> = Function(int y, {List<T> x}) Function<B extends core.int>(
-    int x);
-typedef F19<T> = void Function([List<Function> x]) Function<B extends core.int>(
-    int x);
-typedef F20<T> = void Function(List<T> x1) Function<B extends core.int>(int x);
-typedef F21<T> = List<Function> Function<A>(Function x)
-    Function<B extends core.int>(int x);
-typedef F22<T> = Function<A>(List<Function> x) Function<B extends core.int>(
-    int x);
-typedef F23<T> = void Function<A>(core.List<core.int> x)
-    Function<B extends core.int>(int x);
-
-int f0(int y, [int x]) => null;
-Function f1(int y, [List<int> x]) => null;
-core.List<core.int> f2(int x0, [core.List<core.int> x]) => null;
-f3([List<Function> x]) => null;
-Function f4<A>(core.List<core.int> x) => null;
-int Function(int x0, {int x}) f5<B extends core.int>(int x) => null;
-int Function([core.List<core.int> x]) f6<B extends core.int>(int x) => null;
-Function Function(int y, [int x]) f7<B extends core.int>(int x) => null;
-Function Function(int x0, [List<Function> x1]) f8<B extends core.int>(int x) =>
-    null;
-Function Function(int x0, {List<int> x}) f9<B extends core.int>(int x) => null;
-List<Function> Function(List<Function> x) f10<B extends core.int>(int x) =>
-    null;
-List<Function> Function(int y, [List<int> x]) f11<B extends core.int>(int x) =>
-    null;
-core.List<core.int> Function([Function x0]) f12<B extends core.int>(int x) =>
-    null;
-core.List<core.int> Function({core.List<core.int> x}) f13<B extends core.int>(
-        int x) =>
-    null;
-List<int> Function(int y, {int x}) f14<B extends core.int>(int x) => null;
-List<int> Function(int x0, [core.List<core.int> x]) f15<B extends core.int>(
-        int x) =>
-    null;
-Function(int x0) f16<B extends core.int>(int x) => null;
-Function(int x, [List<Function> x0]) f17<B extends core.int>(int x) => null;
-Function(int y, {List<int> x}) f18<B extends core.int>(int x) => null;
-void Function([List<Function> x]) f19<B extends core.int>(int x) => null;
-void Function(List<int> x0) f20<B extends core.int>(int x) => null;
-List<Function> Function<A>(Function x) f21<B extends core.int>(int x) => null;
-Function<A>(List<Function> x) f22<B extends core.int>(int x) => null;
-void Function<A>(core.List<core.int> x) f23<B extends core.int>(int x) => null;
-
-class U3<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int y, [int x]) x0;
-  Function Function(int y, [List<T> x]) x1;
-  core.List<core.int> Function(int x0, [core.List<core.int> x]) x2;
-  Function([List<Function> x]) x3;
-  Function Function<A>(core.List<core.int> x) x4;
-  int Function(int x1, {int x}) Function<B extends core.int>(int x) x5;
-  int Function([core.List<core.int> x]) Function<B extends core.int>(int x) x6;
-  Function Function(int y, [int x]) Function<B extends core.int>(int x) x7;
-  Function Function(int x2, [List<Function> x3]) Function<B extends core.int>(
-      int x) x8;
-  Function Function(int x1, {List<T> x}) Function<B extends core.int>(int x) x9;
-  List<Function> Function(List<Function> x) Function<B extends core.int>(int x)
-      x10;
-  List<Function> Function(int y, [List<T> x]) Function<B extends core.int>(
-      int x) x11;
-  core.List<core.int> Function([Function x1]) Function<B extends core.int>(
-      int x) x12;
-  core.List<core.int> Function({core.List<core.int> x})
-      Function<B extends core.int>(int x) x13;
-  List<T> Function(int y, {int x}) Function<B extends core.int>(int x) x14;
-  List<T> Function(int x1, [core.List<core.int> x])
-      Function<B extends core.int>(int x) x15;
-  Function(int x1) Function<B extends core.int>(int x) x16;
-  Function(int x, [List<Function> x1]) Function<B extends core.int>(int x) x17;
-  Function(int y, {List<T> x}) Function<B extends core.int>(int x) x18;
-  void Function([List<Function> x]) Function<B extends core.int>(int x) x19;
-  void Function(List<T> x1) Function<B extends core.int>(int x) x20;
-  List<Function> Function<A>(Function x) Function<B extends core.int>(int x)
-      x21;
-  Function<A>(List<Function> x) Function<B extends core.int>(int x) x22;
-  void Function<A>(core.List<core.int> x) Function<B extends core.int>(int x)
-      x23;
-
-  U3({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int y, [int x]) => null;
-  Function m1(int y, [List<T> x]) => null;
-  core.List<core.int> m2(int x0, [core.List<core.int> x]) => null;
-  m3([List<Function> x]) => null;
-  Function m4<A>(core.List<core.int> x) => null;
-  int Function(int x0, {int x}) m5<B extends core.int>(int x) => null;
-  int Function([core.List<core.int> x]) m6<B extends core.int>(int x) => null;
-  Function Function(int y, [int x]) m7<B extends core.int>(int x) => null;
-  Function Function(int x0, [List<Function> x1]) m8<B extends core.int>(
-          int x) =>
-      null;
-  Function Function(int x0, {List<T> x}) m9<B extends core.int>(int x) => null;
-  List<Function> Function(List<Function> x) m10<B extends core.int>(int x) =>
-      null;
-  List<Function> Function(int y, [List<T> x]) m11<B extends core.int>(int x) =>
-      null;
-  core.List<core.int> Function([Function x0]) m12<B extends core.int>(int x) =>
-      null;
-  core.List<core.int> Function({core.List<core.int> x}) m13<B extends core.int>(
-          int x) =>
-      null;
-  List<T> Function(int y, {int x}) m14<B extends core.int>(int x) => null;
-  List<T> Function(int x0, [core.List<core.int> x]) m15<B extends core.int>(
-          int x) =>
-      null;
-  Function(int x0) m16<B extends core.int>(int x) => null;
-  Function(int x, [List<Function> x0]) m17<B extends core.int>(int x) => null;
-  Function(int y, {List<T> x}) m18<B extends core.int>(int x) => null;
-  void Function([List<Function> x]) m19<B extends core.int>(int x) => null;
-  void Function(List<T> x0) m20<B extends core.int>(int x) => null;
-  List<Function> Function<A>(Function x) m21<B extends core.int>(int x) => null;
-  Function<A>(List<Function> x) m22<B extends core.int>(int x) => null;
-  void Function<A>(core.List<core.int> x) m23<B extends core.int>(int x) =>
-      null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int y, [int x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, [int x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int y, [int x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// Function Function(int y, [List<T> x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, [List<T> x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is Function Function(int y, [List<T> x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-    // The static function has its T always set to int.
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isFalse(f1 is F1<bool>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    Expect.isFalse(confuse(f1) is F1<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        x1 = confuse(f1);
-      });
-      Expect.throws(() {
-        l1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        l1 = confuse(f1);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m1 is F1<int>);
-      Expect.equals(true, m1 is F1<bool>);
-      Expect.equals(true, confuse(m1) is F1<int>);
-      Expect.equals(true, confuse(m1) is F1<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int x0, [core.List<core.int> x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x0, [core.List<core.int> x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(
-        m2 is core.List<core.int> Function(int x0, [core.List<core.int> x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// Function([List<Function> x])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function([List<Function> x]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function([List<Function> x]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// Function Function<A>(core.List<core.int> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(core.List<core.int> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is Function Function<A>(core.List<core.int> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x1, {int x}) Function<B extends core.int>(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, {int x}) Function<B extends core.int>(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x1, {int x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function([core.List<core.int> x]) Function<B extends core.int>(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function([core.List<core.int> x]) Function<B extends core.int>(int x)
-        l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function([core.List<core.int> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int y, [int x]) Function<B extends core.int>(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, [int x]) Function<B extends core.int>(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int y, [int x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x2, [List<Function> x3]) Function<B extends core.int>(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x2, [List<Function> x3]) Function<B extends core.int>(
-        int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x2, [List<Function> x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// Function Function(int x1, {List<T> x}) Function<B extends core.int>(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, {List<T> x}) Function<B extends core.int>(int x)
-        l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is Function Function(int x1, {List<T> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-    // The static function has its T always set to int.
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isFalse(f9 is F9<bool>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    Expect.isFalse(confuse(f9) is F9<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x9 = (f9 as dynamic);
-      });
-      Expect.throws(() {
-        x9 = confuse(f9);
-      });
-      Expect.throws(() {
-        l9 = (f9 as dynamic);
-      });
-      Expect.throws(() {
-        l9 = confuse(f9);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m9 is F9<int>);
-      Expect.equals(tIsBool, m9 is F9<bool>);
-      Expect.equals(tIsInt, confuse(m9) is F9<int>);
-      Expect.equals(tIsBool, confuse(m9) is F9<bool>);
-    }
-  }
-
-  /// List<Function> Function(List<Function> x) Function<B extends core.int>(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(List<Function> x) Function<B extends core.int>(
-        int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(List<Function> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function(int y, [List<T> x]) Function<B extends core.int>(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, [List<T> x]) Function<B extends core.int>(
-        int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is List<Function> Function(int y, [List<T> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function([Function x1]) Function<B extends core.int>(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([Function x1]) Function<B extends core.int>(
-        int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function([Function x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function({core.List<core.int> x}) Function<B extends core.int>(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function({core.List<core.int> x})
-        Function<B extends core.int>(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function({core.List<core.int> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-  }
-
-  /// List<T> Function(int y, {int x}) Function<B extends core.int>(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, {int x}) Function<B extends core.int>(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int y, {int x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x1, [core.List<core.int> x]) Function<B extends core.int>(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, [core.List<core.int> x])
-        Function<B extends core.int>(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x1, [core.List<core.int> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x1) Function<B extends core.int>(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x1) Function<B extends core.int>(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x1) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x, [List<Function> x1]) Function<B extends core.int>(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x, [List<Function> x1]) Function<B extends core.int>(int x)
-        l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x, [List<Function> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// Function(int y, {List<T> x}) Function<B extends core.int>(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    Function(int y, {List<T> x}) Function<B extends core.int>(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is Function(int y, {List<T> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-    // The static function has its T always set to int.
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isFalse(f18 is F18<bool>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    Expect.isFalse(confuse(f18) is F18<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x18 = (f18 as dynamic);
-      });
-      Expect.throws(() {
-        x18 = confuse(f18);
-      });
-      Expect.throws(() {
-        l18 = (f18 as dynamic);
-      });
-      Expect.throws(() {
-        l18 = confuse(f18);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m18 is F18<int>);
-      Expect.equals(tIsBool, m18 is F18<bool>);
-      Expect.equals(tIsInt, confuse(m18) is F18<int>);
-      Expect.equals(tIsBool, confuse(m18) is F18<bool>);
-    }
-  }
-
-  /// void Function([List<Function> x]) Function<B extends core.int>(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function([List<Function> x]) Function<B extends core.int>(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function([List<Function> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function(List<T> x1) Function<B extends core.int>(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function(List<T> x1) Function<B extends core.int>(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(
-        m20 is void Function(List<T> x1) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(Function x) Function<B extends core.int>(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(Function x) Function<B extends core.int>(int x)
-        l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<Function> Function<A>(Function x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// Function<A>(List<Function> x) Function<B extends core.int>(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    Function<A>(List<Function> x) Function<B extends core.int>(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is Function<A>(List<Function> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// void Function<A>(core.List<core.int> x) Function<B extends core.int>(int x)
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(core.List<core.int> x) Function<B extends core.int>(int x)
-        l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is void Function<A>(core.List<core.int> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U3().runTests();
-  new U3<int>(tIsInt: true).runTests();
-  new U3<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type40_test.dart b/tests/language_2/function_type/function_type40_test.dart
deleted file mode 100644
index 9bf69105a41..00000000000
--- a/tests/language_2/function_type/function_type40_test.dart
+++ /dev/null
@@ -1,895 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int x, [core.List<core.int> x2]);
-typedef F1<T> = List<Function> Function(int x1, [List<Function> x2]);
-typedef F2<T> = List<T> Function([Function x1]);
-typedef F3<T> = void Function(int x0);
-typedef F4<T> = A Function<A>(int x);
-typedef F5<T> = int Function({Function x}) Function();
-typedef F6<T> = int Function(List<T> x) Function();
-typedef F7<T> = Function Function(int x0, [Function x]) Function();
-typedef F8<T> = Function Function([core.List<core.int> x1]) Function();
-typedef F9<T> = List<Function> Function(int x, [int x2]) Function();
-typedef F10<T> = List<Function> Function(int y, {List<Function> x}) Function();
-typedef F11<T> = core.List<core.int> Function([int x]) Function();
-typedef F12<T> = core.List<core.int> Function(List<Function> x0) Function();
-typedef F13<T> = core.List<core.int> Function(int x, [List<T> x2]) Function();
-typedef F14<T> = List<T> Function(int x0, {Function x}) Function();
-typedef F15<T> = List<T> Function([List<T> x]) Function();
-typedef F16<T> = Function(int y, [Function x]) Function();
-typedef F17<T> = Function(int x1, [core.List<core.int> x2]) Function();
-typedef F18<T> = void Function({int x}) Function();
-typedef F19<T> = void Function(core.List<core.int> x) Function();
-typedef F20<T> = int Function<A>(List<Function> x) Function();
-typedef F21<T> = core.List<core.int> Function<A>(core.List<core.int> x)
-    Function();
-typedef F22<T> = A Function<A>(List<T> x) Function();
-typedef F23<T> = B Function(Function x) Function<B extends core.int>();
-
-int f0(int x, [core.List<core.int> x0]) => null;
-List<Function> f1(int x0, [List<Function> x1]) => null;
-List<int> f2([Function x0]) => null;
-void f3(int x0) => null;
-A f4<A>(int x) => null;
-int Function({Function x}) f5() => null;
-int Function(List<int> x) f6() => null;
-Function Function(int x0, [Function x]) f7() => null;
-Function Function([core.List<core.int> x0]) f8() => null;
-List<Function> Function(int x, [int x0]) f9() => null;
-List<Function> Function(int y, {List<Function> x}) f10() => null;
-core.List<core.int> Function([int x]) f11() => null;
-core.List<core.int> Function(List<Function> x0) f12() => null;
-core.List<core.int> Function(int x, [List<int> x0]) f13() => null;
-List<int> Function(int x0, {Function x}) f14() => null;
-List<int> Function([List<int> x]) f15() => null;
-Function(int y, [Function x]) f16() => null;
-Function(int x0, [core.List<core.int> x1]) f17() => null;
-void Function({int x}) f18() => null;
-void Function(core.List<core.int> x) f19() => null;
-int Function<A>(List<Function> x) f20() => null;
-core.List<core.int> Function<A>(core.List<core.int> x) f21() => null;
-A Function<A>(List<int> x) f22() => null;
-B Function(Function x) f23<B extends core.int>() => null;
-
-class U40<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int x, [core.List<core.int> x2]) x0;
-  List<Function> Function(int x1, [List<Function> x2]) x1;
-  List<T> Function([Function x1]) x2;
-  void Function(int x0) x3;
-  A Function<A>(int x) x4;
-  int Function({Function x}) Function() x5;
-  int Function(List<T> x) Function() x6;
-  Function Function(int x0, [Function x]) Function() x7;
-  Function Function([core.List<core.int> x1]) Function() x8;
-  List<Function> Function(int x, [int x2]) Function() x9;
-  List<Function> Function(int y, {List<Function> x}) Function() x10;
-  core.List<core.int> Function([int x]) Function() x11;
-  core.List<core.int> Function(List<Function> x0) Function() x12;
-  core.List<core.int> Function(int x, [List<T> x2]) Function() x13;
-  List<T> Function(int x0, {Function x}) Function() x14;
-  List<T> Function([List<T> x]) Function() x15;
-  Function(int y, [Function x]) Function() x16;
-  Function(int x1, [core.List<core.int> x2]) Function() x17;
-  void Function({int x}) Function() x18;
-  void Function(core.List<core.int> x) Function() x19;
-  int Function<A>(List<Function> x) Function() x20;
-  core.List<core.int> Function<A>(core.List<core.int> x) Function() x21;
-  A Function<A>(List<T> x) Function() x22;
-  B Function(Function x) Function<B extends core.int>() x23;
-
-  U40({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int x, [core.List<core.int> x0]) => null;
-  List<Function> m1(int x0, [List<Function> x1]) => null;
-  List<T> m2([Function x0]) => null;
-  void m3(int x0) => null;
-  A m4<A>(int x) => null;
-  int Function({Function x}) m5() => null;
-  int Function(List<T> x) m6() => null;
-  Function Function(int x0, [Function x]) m7() => null;
-  Function Function([core.List<core.int> x0]) m8() => null;
-  List<Function> Function(int x, [int x0]) m9() => null;
-  List<Function> Function(int y, {List<Function> x}) m10() => null;
-  core.List<core.int> Function([int x]) m11() => null;
-  core.List<core.int> Function(List<Function> x0) m12() => null;
-  core.List<core.int> Function(int x, [List<T> x0]) m13() => null;
-  List<T> Function(int x0, {Function x}) m14() => null;
-  List<T> Function([List<T> x]) m15() => null;
-  Function(int y, [Function x]) m16() => null;
-  Function(int x0, [core.List<core.int> x1]) m17() => null;
-  void Function({int x}) m18() => null;
-  void Function(core.List<core.int> x) m19() => null;
-  int Function<A>(List<Function> x) m20() => null;
-  core.List<core.int> Function<A>(core.List<core.int> x) m21() => null;
-  A Function<A>(List<T> x) m22() => null;
-  B Function(Function x) m23<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int x, [core.List<core.int> x2])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int x, [core.List<core.int> x2]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int x, [core.List<core.int> x2]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(int x1, [List<Function> x2])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, [List<Function> x2]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(int x1, [List<Function> x2]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function([Function x1])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([Function x1]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function([Function x1]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(int x0)
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int x0) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int x0));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// A Function<A>(int x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(int x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is A Function<A>(int x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function({Function x}) Function()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function({Function x}) Function() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function({Function x}) Function());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(List<T> x) Function()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(List<T> x) Function() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(List<T> x) Function());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(int x0, [Function x]) Function()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x0, [Function x]) Function() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x0, [Function x]) Function());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function([core.List<core.int> x1]) Function()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function([core.List<core.int> x1]) Function() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function([core.List<core.int> x1]) Function());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int x, [int x2]) Function()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x, [int x2]) Function() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int x, [int x2]) Function());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int y, {List<Function> x}) Function()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, {List<Function> x}) Function() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(
-        m10 is List<Function> Function(int y, {List<Function> x}) Function());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function([int x]) Function()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([int x]) Function() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function([int x]) Function());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(List<Function> x0) Function()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(List<Function> x0) Function() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(
-        m12 is core.List<core.int> Function(List<Function> x0) Function());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int x, [List<T> x2]) Function()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x, [List<T> x2]) Function() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(
-        m13 is core.List<core.int> Function(int x, [List<T> x2]) Function());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x0, {Function x}) Function()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x0, {Function x}) Function() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int x0, {Function x}) Function());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function([List<T> x]) Function()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([List<T> x]) Function() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function([List<T> x]) Function());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int y, [Function x]) Function()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int y, [Function x]) Function() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int y, [Function x]) Function());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x1, [core.List<core.int> x2]) Function()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, [core.List<core.int> x2]) Function() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x1, [core.List<core.int> x2]) Function());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function({int x}) Function()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function({int x}) Function() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function({int x}) Function());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(core.List<core.int> x) Function()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(core.List<core.int> x) Function() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(core.List<core.int> x) Function());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(List<Function> x) Function()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(List<Function> x) Function() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is int Function<A>(List<Function> x) Function());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(core.List<core.int> x) Function()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(core.List<core.int> x) Function() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is core.List<core.int> Function<A>(core.List<core.int> x)
-        Function());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(List<T> x) Function()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(List<T> x) Function() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is A Function<A>(List<T> x) Function());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-    // The static function has its T always set to int.
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isFalse(f22 is F22<bool>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    Expect.isFalse(confuse(f22) is F22<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x22 = (f22 as dynamic);
-      });
-      Expect.throws(() {
-        x22 = confuse(f22);
-      });
-      Expect.throws(() {
-        l22 = (f22 as dynamic);
-      });
-      Expect.throws(() {
-        l22 = confuse(f22);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m22 is F22<int>);
-      Expect.equals(tIsBool, m22 is F22<bool>);
-      Expect.equals(tIsInt, confuse(m22) is F22<int>);
-      Expect.equals(tIsBool, confuse(m22) is F22<bool>);
-    }
-  }
-
-  /// B Function(Function x) Function<B extends core.int>()
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    B Function(Function x) Function<B extends core.int>() l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is B Function(Function x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U40().runTests();
-  new U40<int>(tIsInt: true).runTests();
-  new U40<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type41_test.dart b/tests/language_2/function_type/function_type41_test.dart
deleted file mode 100644
index 784144bcaf0..00000000000
--- a/tests/language_2/function_type/function_type41_test.dart
+++ /dev/null
@@ -1,904 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function({core.List<core.int> x});
-typedef F1<T> = List<Function> Function(int x, [List<Function> x2]);
-typedef F2<T> = List<T> Function(int x1, [Function x2]);
-typedef F3<T> = void Function([int x1]);
-typedef F4<T> = A Function<A>(Function x);
-typedef F5<T> = int Function({Function x}) Function(int x);
-typedef F6<T> = int Function(List<T> x) Function(int x);
-typedef F7<T> = Function Function(int x1, [Function x]) Function(int x);
-typedef F8<T> = Function Function([core.List<core.int> x1]) Function(int x);
-typedef F9<T> = List<Function> Function(int x, [int x1]) Function(int x);
-typedef F10<T> = List<Function> Function(int y, {List<Function> x}) Function(
-    int x);
-typedef F11<T> = core.List<core.int> Function([int x]) Function(int x);
-typedef F12<T> = core.List<core.int> Function(List<Function> x1) Function(
-    int x);
-typedef F13<T> = core.List<core.int> Function(int x, [List<T> x1]) Function(
-    int x);
-typedef F14<T> = List<T> Function(int x1, {Function x}) Function(int x);
-typedef F15<T> = List<T> Function([List<T> x]) Function(int x);
-typedef F16<T> = Function(int y, [Function x]) Function(int x);
-typedef F17<T> = Function(int x2, [core.List<core.int> x3]) Function(int x);
-typedef F18<T> = void Function({int x}) Function(int x);
-typedef F19<T> = void Function(core.List<core.int> x) Function(int x);
-typedef F20<T> = int Function<A>(List<Function> x) Function(int x);
-typedef F21<T> = core.List<core.int> Function<A>(core.List<core.int> x)
-    Function(int x);
-typedef F22<T> = A Function<A>(List<T> x) Function(int x);
-typedef F23<T> = B Function(Function x) Function<B extends core.int>(int x);
-
-int f0({core.List<core.int> x}) => null;
-List<Function> f1(int x, [List<Function> x0]) => null;
-List<int> f2(int x0, [Function x1]) => null;
-void f3([int x0]) => null;
-A f4<A>(Function x) => null;
-int Function({Function x}) f5(int x) => null;
-int Function(List<int> x) f6(int x) => null;
-Function Function(int x0, [Function x]) f7(int x) => null;
-Function Function([core.List<core.int> x0]) f8(int x) => null;
-List<Function> Function(int x, [int x0]) f9(int x) => null;
-List<Function> Function(int y, {List<Function> x}) f10(int x) => null;
-core.List<core.int> Function([int x]) f11(int x) => null;
-core.List<core.int> Function(List<Function> x0) f12(int x) => null;
-core.List<core.int> Function(int x, [List<int> x0]) f13(int x) => null;
-List<int> Function(int x0, {Function x}) f14(int x) => null;
-List<int> Function([List<int> x]) f15(int x) => null;
-Function(int y, [Function x]) f16(int x) => null;
-Function(int x0, [core.List<core.int> x1]) f17(int x) => null;
-void Function({int x}) f18(int x) => null;
-void Function(core.List<core.int> x) f19(int x) => null;
-int Function<A>(List<Function> x) f20(int x) => null;
-core.List<core.int> Function<A>(core.List<core.int> x) f21(int x) => null;
-A Function<A>(List<int> x) f22(int x) => null;
-B Function(Function x) f23<B extends core.int>(int x) => null;
-
-class U41<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function({core.List<core.int> x}) x0;
-  List<Function> Function(int x, [List<Function> x2]) x1;
-  List<T> Function(int x1, [Function x2]) x2;
-  void Function([int x1]) x3;
-  A Function<A>(Function x) x4;
-  int Function({Function x}) Function(int x) x5;
-  int Function(List<T> x) Function(int x) x6;
-  Function Function(int x1, [Function x]) Function(int x) x7;
-  Function Function([core.List<core.int> x1]) Function(int x) x8;
-  List<Function> Function(int x, [int x1]) Function(int x) x9;
-  List<Function> Function(int y, {List<Function> x}) Function(int x) x10;
-  core.List<core.int> Function([int x]) Function(int x) x11;
-  core.List<core.int> Function(List<Function> x1) Function(int x) x12;
-  core.List<core.int> Function(int x, [List<T> x1]) Function(int x) x13;
-  List<T> Function(int x1, {Function x}) Function(int x) x14;
-  List<T> Function([List<T> x]) Function(int x) x15;
-  Function(int y, [Function x]) Function(int x) x16;
-  Function(int x2, [core.List<core.int> x3]) Function(int x) x17;
-  void Function({int x}) Function(int x) x18;
-  void Function(core.List<core.int> x) Function(int x) x19;
-  int Function<A>(List<Function> x) Function(int x) x20;
-  core.List<core.int> Function<A>(core.List<core.int> x) Function(int x) x21;
-  A Function<A>(List<T> x) Function(int x) x22;
-  B Function(Function x) Function<B extends core.int>(int x) x23;
-
-  U41({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0({core.List<core.int> x}) => null;
-  List<Function> m1(int x, [List<Function> x0]) => null;
-  List<T> m2(int x0, [Function x1]) => null;
-  void m3([int x0]) => null;
-  A m4<A>(Function x) => null;
-  int Function({Function x}) m5(int x) => null;
-  int Function(List<T> x) m6(int x) => null;
-  Function Function(int x0, [Function x]) m7(int x) => null;
-  Function Function([core.List<core.int> x0]) m8(int x) => null;
-  List<Function> Function(int x, [int x0]) m9(int x) => null;
-  List<Function> Function(int y, {List<Function> x}) m10(int x) => null;
-  core.List<core.int> Function([int x]) m11(int x) => null;
-  core.List<core.int> Function(List<Function> x0) m12(int x) => null;
-  core.List<core.int> Function(int x, [List<T> x0]) m13(int x) => null;
-  List<T> Function(int x0, {Function x}) m14(int x) => null;
-  List<T> Function([List<T> x]) m15(int x) => null;
-  Function(int y, [Function x]) m16(int x) => null;
-  Function(int x0, [core.List<core.int> x1]) m17(int x) => null;
-  void Function({int x}) m18(int x) => null;
-  void Function(core.List<core.int> x) m19(int x) => null;
-  int Function<A>(List<Function> x) m20(int x) => null;
-  core.List<core.int> Function<A>(core.List<core.int> x) m21(int x) => null;
-  A Function<A>(List<T> x) m22(int x) => null;
-  B Function(Function x) m23<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function({core.List<core.int> x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function({core.List<core.int> x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function({core.List<core.int> x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(int x, [List<Function> x2])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x, [List<Function> x2]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(int x, [List<Function> x2]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(int x1, [Function x2])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, [Function x2]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int x1, [Function x2]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function([int x1])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function([int x1]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function([int x1]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// A Function<A>(Function x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(Function x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is A Function<A>(Function x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function({Function x}) Function(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function({Function x}) Function(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function({Function x}) Function(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(List<T> x) Function(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(List<T> x) Function(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(List<T> x) Function(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(int x1, [Function x]) Function(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, [Function x]) Function(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(
-        m7 is Function Function(int x1, [Function x]) Function(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function([core.List<core.int> x1]) Function(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function([core.List<core.int> x1]) Function(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(
-        m8 is Function Function([core.List<core.int> x1]) Function(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int x, [int x1]) Function(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x, [int x1]) Function(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(
-        m9 is List<Function> Function(int x, [int x1]) Function(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int y, {List<Function> x}) Function(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, {List<Function> x}) Function(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int y, {List<Function> x})
-        Function(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function([int x]) Function(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([int x]) Function(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function([int x]) Function(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(List<Function> x1) Function(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(List<Function> x1) Function(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(
-        m12 is core.List<core.int> Function(List<Function> x1) Function(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int x, [List<T> x1]) Function(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x, [List<T> x1]) Function(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(int x, [List<T> x1])
-        Function(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x1, {Function x}) Function(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, {Function x}) Function(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(
-        m14 is List<T> Function(int x1, {Function x}) Function(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function([List<T> x]) Function(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([List<T> x]) Function(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function([List<T> x]) Function(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int y, [Function x]) Function(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int y, [Function x]) Function(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int y, [Function x]) Function(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x2, [core.List<core.int> x3]) Function(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x2, [core.List<core.int> x3]) Function(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(
-        m17 is Function(int x2, [core.List<core.int> x3]) Function(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function({int x}) Function(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function({int x}) Function(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function({int x}) Function(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(core.List<core.int> x) Function(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(core.List<core.int> x) Function(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(core.List<core.int> x) Function(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(List<Function> x) Function(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(List<Function> x) Function(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is int Function<A>(List<Function> x) Function(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(core.List<core.int> x) Function(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(core.List<core.int> x) Function(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is core.List<core.int> Function<A>(core.List<core.int> x)
-        Function(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(List<T> x) Function(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(List<T> x) Function(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is A Function<A>(List<T> x) Function(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-    // The static function has its T always set to int.
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isFalse(f22 is F22<bool>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    Expect.isFalse(confuse(f22) is F22<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x22 = (f22 as dynamic);
-      });
-      Expect.throws(() {
-        x22 = confuse(f22);
-      });
-      Expect.throws(() {
-        l22 = (f22 as dynamic);
-      });
-      Expect.throws(() {
-        l22 = confuse(f22);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m22 is F22<int>);
-      Expect.equals(tIsBool, m22 is F22<bool>);
-      Expect.equals(tIsInt, confuse(m22) is F22<int>);
-      Expect.equals(tIsBool, confuse(m22) is F22<bool>);
-    }
-  }
-
-  /// B Function(Function x) Function<B extends core.int>(int x)
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    B Function(Function x) Function<B extends core.int>(int x) l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(
-        m23 is B Function(Function x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U41().runTests();
-  new U41<int>(tIsInt: true).runTests();
-  new U41<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type42_test.dart b/tests/language_2/function_type/function_type42_test.dart
deleted file mode 100644
index b7bd2e9adb5..00000000000
--- a/tests/language_2/function_type/function_type42_test.dart
+++ /dev/null
@@ -1,937 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int x0, {core.List<core.int> x});
-typedef F1<T> = List<Function> Function({List<Function> x});
-typedef F2<T> = List<T> Function(int x, [Function x2]);
-typedef F3<T> = void Function(int x1, [int x2]);
-typedef F4<T> = A Function<A>(List<Function> x);
-typedef F5<T> = int Function({Function x}) Function<B extends core.int>();
-typedef F6<T> = int Function(List<T> x) Function<B extends core.int>();
-typedef F7<T> = Function Function(int x1, [Function x])
-    Function<B extends core.int>();
-typedef F8<T> = Function Function([core.List<core.int> x1])
-    Function<B extends core.int>();
-typedef F9<T> = List<Function> Function(int x, [int x1])
-    Function<B extends core.int>();
-typedef F10<T> = List<Function> Function(int y, {List<Function> x})
-    Function<B extends core.int>();
-typedef F11<T> = core.List<core.int> Function([int x])
-    Function<B extends core.int>();
-typedef F12<T> = core.List<core.int> Function(List<Function> x1)
-    Function<B extends core.int>();
-typedef F13<T> = core.List<core.int> Function(int x, [List<T> x1])
-    Function<B extends core.int>();
-typedef F14<T> = List<T> Function(int x1, {Function x})
-    Function<B extends core.int>();
-typedef F15<T> = List<T> Function([List<T> x]) Function<B extends core.int>();
-typedef F16<T> = Function(int y, [Function x]) Function<B extends core.int>();
-typedef F17<T> = Function(int x2, [core.List<core.int> x3])
-    Function<B extends core.int>();
-typedef F18<T> = void Function({int x}) Function<B extends core.int>();
-typedef F19<T> = void Function(core.List<core.int> x)
-    Function<B extends core.int>();
-typedef F20<T> = int Function<A>(List<Function> x)
-    Function<B extends core.int>();
-typedef F21<T> = core.List<core.int> Function<A>(core.List<core.int> x)
-    Function<B extends core.int>();
-typedef F22<T> = A Function<A>(List<T> x) Function<B extends core.int>();
-typedef F23<T> = B Function(List<Function> x) Function<B extends core.int>();
-
-int f0(int x0, {core.List<core.int> x}) => null;
-List<Function> f1({List<Function> x}) => null;
-List<int> f2(int x, [Function x0]) => null;
-void f3(int x0, [int x1]) => null;
-A f4<A>(List<Function> x) => null;
-int Function({Function x}) f5<B extends core.int>() => null;
-int Function(List<int> x) f6<B extends core.int>() => null;
-Function Function(int x0, [Function x]) f7<B extends core.int>() => null;
-Function Function([core.List<core.int> x0]) f8<B extends core.int>() => null;
-List<Function> Function(int x, [int x0]) f9<B extends core.int>() => null;
-List<Function> Function(int y, {List<Function> x}) f10<B extends core.int>() =>
-    null;
-core.List<core.int> Function([int x]) f11<B extends core.int>() => null;
-core.List<core.int> Function(List<Function> x0) f12<B extends core.int>() =>
-    null;
-core.List<core.int> Function(int x, [List<int> x0]) f13<B extends core.int>() =>
-    null;
-List<int> Function(int x0, {Function x}) f14<B extends core.int>() => null;
-List<int> Function([List<int> x]) f15<B extends core.int>() => null;
-Function(int y, [Function x]) f16<B extends core.int>() => null;
-Function(int x0, [core.List<core.int> x1]) f17<B extends core.int>() => null;
-void Function({int x}) f18<B extends core.int>() => null;
-void Function(core.List<core.int> x) f19<B extends core.int>() => null;
-int Function<A>(List<Function> x) f20<B extends core.int>() => null;
-core.List<core.int> Function<A>(core.List<core.int> x)
-    f21<B extends core.int>() => null;
-A Function<A>(List<int> x) f22<B extends core.int>() => null;
-B Function(List<Function> x) f23<B extends core.int>() => null;
-
-class U42<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int x0, {core.List<core.int> x}) x0;
-  List<Function> Function({List<Function> x}) x1;
-  List<T> Function(int x, [Function x2]) x2;
-  void Function(int x1, [int x2]) x3;
-  A Function<A>(List<Function> x) x4;
-  int Function({Function x}) Function<B extends core.int>() x5;
-  int Function(List<T> x) Function<B extends core.int>() x6;
-  Function Function(int x1, [Function x]) Function<B extends core.int>() x7;
-  Function Function([core.List<core.int> x1]) Function<B extends core.int>() x8;
-  List<Function> Function(int x, [int x1]) Function<B extends core.int>() x9;
-  List<Function> Function(int y, {List<Function> x})
-      Function<B extends core.int>() x10;
-  core.List<core.int> Function([int x]) Function<B extends core.int>() x11;
-  core.List<core.int> Function(List<Function> x1) Function<B extends core.int>()
-      x12;
-  core.List<core.int> Function(int x, [List<T> x1])
-      Function<B extends core.int>() x13;
-  List<T> Function(int x1, {Function x}) Function<B extends core.int>() x14;
-  List<T> Function([List<T> x]) Function<B extends core.int>() x15;
-  Function(int y, [Function x]) Function<B extends core.int>() x16;
-  Function(int x2, [core.List<core.int> x3]) Function<B extends core.int>() x17;
-  void Function({int x}) Function<B extends core.int>() x18;
-  void Function(core.List<core.int> x) Function<B extends core.int>() x19;
-  int Function<A>(List<Function> x) Function<B extends core.int>() x20;
-  core.List<core.int> Function<A>(core.List<core.int> x)
-      Function<B extends core.int>() x21;
-  A Function<A>(List<T> x) Function<B extends core.int>() x22;
-  B Function(List<Function> x) Function<B extends core.int>() x23;
-
-  U42({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int x0, {core.List<core.int> x}) => null;
-  List<Function> m1({List<Function> x}) => null;
-  List<T> m2(int x, [Function x0]) => null;
-  void m3(int x0, [int x1]) => null;
-  A m4<A>(List<Function> x) => null;
-  int Function({Function x}) m5<B extends core.int>() => null;
-  int Function(List<T> x) m6<B extends core.int>() => null;
-  Function Function(int x0, [Function x]) m7<B extends core.int>() => null;
-  Function Function([core.List<core.int> x0]) m8<B extends core.int>() => null;
-  List<Function> Function(int x, [int x0]) m9<B extends core.int>() => null;
-  List<Function> Function(int y, {List<Function> x})
-      m10<B extends core.int>() => null;
-  core.List<core.int> Function([int x]) m11<B extends core.int>() => null;
-  core.List<core.int> Function(List<Function> x0) m12<B extends core.int>() =>
-      null;
-  core.List<core.int> Function(int x, [List<T> x0]) m13<B extends core.int>() =>
-      null;
-  List<T> Function(int x0, {Function x}) m14<B extends core.int>() => null;
-  List<T> Function([List<T> x]) m15<B extends core.int>() => null;
-  Function(int y, [Function x]) m16<B extends core.int>() => null;
-  Function(int x0, [core.List<core.int> x1]) m17<B extends core.int>() => null;
-  void Function({int x}) m18<B extends core.int>() => null;
-  void Function(core.List<core.int> x) m19<B extends core.int>() => null;
-  int Function<A>(List<Function> x) m20<B extends core.int>() => null;
-  core.List<core.int> Function<A>(core.List<core.int> x)
-      m21<B extends core.int>() => null;
-  A Function<A>(List<T> x) m22<B extends core.int>() => null;
-  B Function(List<Function> x) m23<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int x0, {core.List<core.int> x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int x0, {core.List<core.int> x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int x0, {core.List<core.int> x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function({List<Function> x})
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function({List<Function> x}) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function({List<Function> x}));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(int x, [Function x2])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x, [Function x2]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int x, [Function x2]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(int x1, [int x2])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, [int x2]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int x1, [int x2]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// A Function<A>(List<Function> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(List<Function> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is A Function<A>(List<Function> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function({Function x}) Function<B extends core.int>()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function({Function x}) Function<B extends core.int>() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(
-        m5 is int Function({Function x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(List<T> x) Function<B extends core.int>()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(List<T> x) Function<B extends core.int>() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(List<T> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(int x1, [Function x]) Function<B extends core.int>()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, [Function x]) Function<B extends core.int>() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x1, [Function x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function([core.List<core.int> x1]) Function<B extends core.int>()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function([core.List<core.int> x1]) Function<B extends core.int>()
-        l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function([core.List<core.int> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int x, [int x1]) Function<B extends core.int>()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x, [int x1]) Function<B extends core.int>() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int x, [int x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int y, {List<Function> x}) Function<B extends core.int>()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, {List<Function> x})
-        Function<B extends core.int>() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int y, {List<Function> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function([int x]) Function<B extends core.int>()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([int x]) Function<B extends core.int>() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function([int x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(List<Function> x1) Function<B extends core.int>()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(List<Function> x1)
-        Function<B extends core.int>() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(List<Function> x1)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int x, [List<T> x1]) Function<B extends core.int>()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x, [List<T> x1])
-        Function<B extends core.int>() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(int x, [List<T> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x1, {Function x}) Function<B extends core.int>()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, {Function x}) Function<B extends core.int>() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int x1, {Function x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function([List<T> x]) Function<B extends core.int>()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([List<T> x]) Function<B extends core.int>() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(
-        m15 is List<T> Function([List<T> x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int y, [Function x]) Function<B extends core.int>()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int y, [Function x]) Function<B extends core.int>() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function(int y, [Function x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x2, [core.List<core.int> x3]) Function<B extends core.int>()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x2, [core.List<core.int> x3]) Function<B extends core.int>()
-        l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x2, [core.List<core.int> x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function({int x}) Function<B extends core.int>()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function({int x}) Function<B extends core.int>() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function({int x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(core.List<core.int> x) Function<B extends core.int>()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(core.List<core.int> x) Function<B extends core.int>() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(core.List<core.int> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(List<Function> x) Function<B extends core.int>()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(List<Function> x) Function<B extends core.int>() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is int Function<A>(List<Function> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(core.List<core.int> x) Function<B extends core.int>()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(core.List<core.int> x)
-        Function<B extends core.int>() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is core.List<core.int> Function<A>(core.List<core.int> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(List<T> x) Function<B extends core.int>()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(List<T> x) Function<B extends core.int>() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(
-        m22 is A Function<A>(List<T> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-    // The static function has its T always set to int.
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isFalse(f22 is F22<bool>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    Expect.isFalse(confuse(f22) is F22<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x22 = (f22 as dynamic);
-      });
-      Expect.throws(() {
-        x22 = confuse(f22);
-      });
-      Expect.throws(() {
-        l22 = (f22 as dynamic);
-      });
-      Expect.throws(() {
-        l22 = confuse(f22);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m22 is F22<int>);
-      Expect.equals(tIsBool, m22 is F22<bool>);
-      Expect.equals(tIsInt, confuse(m22) is F22<int>);
-      Expect.equals(tIsBool, confuse(m22) is F22<bool>);
-    }
-  }
-
-  /// B Function(List<Function> x) Function<B extends core.int>()
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    B Function(List<Function> x) Function<B extends core.int>() l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(
-        m23 is B Function(List<Function> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U42().runTests();
-  new U42<int>(tIsInt: true).runTests();
-  new U42<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type43_test.dart b/tests/language_2/function_type/function_type43_test.dart
deleted file mode 100644
index e7171e8c5f3..00000000000
--- a/tests/language_2/function_type/function_type43_test.dart
+++ /dev/null
@@ -1,964 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int y, {core.List<core.int> x});
-typedef F1<T> = List<Function> Function(int x0, {List<Function> x});
-typedef F2<T> = List<T> Function({Function x});
-typedef F3<T> = void Function(int x, [int x2]);
-typedef F4<T> = A Function<A>(core.List<core.int> x);
-typedef F5<T> = int Function({Function x}) Function<B extends core.int>(int x);
-typedef F6<T> = int Function(List<T> x) Function<B extends core.int>(int x);
-typedef F7<T> = Function Function(int x1, [Function x])
-    Function<B extends core.int>(int x);
-typedef F8<T> = Function Function([core.List<core.int> x1])
-    Function<B extends core.int>(int x);
-typedef F9<T> = List<Function> Function(int x, [int x1])
-    Function<B extends core.int>(int x);
-typedef F10<T> = List<Function> Function(int y, {List<Function> x})
-    Function<B extends core.int>(int x);
-typedef F11<T> = core.List<core.int> Function([int x])
-    Function<B extends core.int>(int x);
-typedef F12<T> = core.List<core.int> Function(List<Function> x1)
-    Function<B extends core.int>(int x);
-typedef F13<T> = core.List<core.int> Function(int x, [List<T> x1])
-    Function<B extends core.int>(int x);
-typedef F14<T> = List<T> Function(int x1, {Function x})
-    Function<B extends core.int>(int x);
-typedef F15<T> = List<T> Function([List<T> x]) Function<B extends core.int>(
-    int x);
-typedef F16<T> = Function(int y, [Function x]) Function<B extends core.int>(
-    int x);
-typedef F17<T> = Function(int x2, [core.List<core.int> x3])
-    Function<B extends core.int>(int x);
-typedef F18<T> = void Function({int x}) Function<B extends core.int>(int x);
-typedef F19<T> = void Function(core.List<core.int> x)
-    Function<B extends core.int>(int x);
-typedef F20<T> = int Function<A>(List<Function> x) Function<B extends core.int>(
-    int x);
-typedef F21<T> = core.List<core.int> Function<A>(core.List<core.int> x)
-    Function<B extends core.int>(int x);
-typedef F22<T> = A Function<A>(List<T> x) Function<B extends core.int>(int x);
-typedef F23<T> = B Function(List<Function> x) Function<B extends core.int>(
-    int x);
-
-int f0(int y, {core.List<core.int> x}) => null;
-List<Function> f1(int x0, {List<Function> x}) => null;
-List<int> f2({Function x}) => null;
-void f3(int x, [int x0]) => null;
-A f4<A>(core.List<core.int> x) => null;
-int Function({Function x}) f5<B extends core.int>(int x) => null;
-int Function(List<int> x) f6<B extends core.int>(int x) => null;
-Function Function(int x0, [Function x]) f7<B extends core.int>(int x) => null;
-Function Function([core.List<core.int> x0]) f8<B extends core.int>(int x) =>
-    null;
-List<Function> Function(int x, [int x0]) f9<B extends core.int>(int x) => null;
-List<Function> Function(int y, {List<Function> x}) f10<B extends core.int>(
-        int x) =>
-    null;
-core.List<core.int> Function([int x]) f11<B extends core.int>(int x) => null;
-core.List<core.int> Function(List<Function> x0) f12<B extends core.int>(
-        int x) =>
-    null;
-core.List<core.int> Function(int x, [List<int> x0]) f13<B extends core.int>(
-        int x) =>
-    null;
-List<int> Function(int x0, {Function x}) f14<B extends core.int>(int x) => null;
-List<int> Function([List<int> x]) f15<B extends core.int>(int x) => null;
-Function(int y, [Function x]) f16<B extends core.int>(int x) => null;
-Function(int x0, [core.List<core.int> x1]) f17<B extends core.int>(int x) =>
-    null;
-void Function({int x}) f18<B extends core.int>(int x) => null;
-void Function(core.List<core.int> x) f19<B extends core.int>(int x) => null;
-int Function<A>(List<Function> x) f20<B extends core.int>(int x) => null;
-core.List<core.int> Function<A>(core.List<core.int> x) f21<B extends core.int>(
-        int x) =>
-    null;
-A Function<A>(List<int> x) f22<B extends core.int>(int x) => null;
-B Function(List<Function> x) f23<B extends core.int>(int x) => null;
-
-class U43<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int y, {core.List<core.int> x}) x0;
-  List<Function> Function(int x0, {List<Function> x}) x1;
-  List<T> Function({Function x}) x2;
-  void Function(int x, [int x2]) x3;
-  A Function<A>(core.List<core.int> x) x4;
-  int Function({Function x}) Function<B extends core.int>(int x) x5;
-  int Function(List<T> x) Function<B extends core.int>(int x) x6;
-  Function Function(int x1, [Function x]) Function<B extends core.int>(int x)
-      x7;
-  Function Function([core.List<core.int> x1]) Function<B extends core.int>(
-      int x) x8;
-  List<Function> Function(int x, [int x1]) Function<B extends core.int>(int x)
-      x9;
-  List<Function> Function(int y, {List<Function> x})
-      Function<B extends core.int>(int x) x10;
-  core.List<core.int> Function([int x]) Function<B extends core.int>(int x) x11;
-  core.List<core.int> Function(List<Function> x1) Function<B extends core.int>(
-      int x) x12;
-  core.List<core.int> Function(int x, [List<T> x1])
-      Function<B extends core.int>(int x) x13;
-  List<T> Function(int x1, {Function x}) Function<B extends core.int>(int x)
-      x14;
-  List<T> Function([List<T> x]) Function<B extends core.int>(int x) x15;
-  Function(int y, [Function x]) Function<B extends core.int>(int x) x16;
-  Function(int x2, [core.List<core.int> x3]) Function<B extends core.int>(int x)
-      x17;
-  void Function({int x}) Function<B extends core.int>(int x) x18;
-  void Function(core.List<core.int> x) Function<B extends core.int>(int x) x19;
-  int Function<A>(List<Function> x) Function<B extends core.int>(int x) x20;
-  core.List<core.int> Function<A>(core.List<core.int> x)
-      Function<B extends core.int>(int x) x21;
-  A Function<A>(List<T> x) Function<B extends core.int>(int x) x22;
-  B Function(List<Function> x) Function<B extends core.int>(int x) x23;
-
-  U43({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int y, {core.List<core.int> x}) => null;
-  List<Function> m1(int x0, {List<Function> x}) => null;
-  List<T> m2({Function x}) => null;
-  void m3(int x, [int x0]) => null;
-  A m4<A>(core.List<core.int> x) => null;
-  int Function({Function x}) m5<B extends core.int>(int x) => null;
-  int Function(List<T> x) m6<B extends core.int>(int x) => null;
-  Function Function(int x0, [Function x]) m7<B extends core.int>(int x) => null;
-  Function Function([core.List<core.int> x0]) m8<B extends core.int>(int x) =>
-      null;
-  List<Function> Function(int x, [int x0]) m9<B extends core.int>(int x) =>
-      null;
-  List<Function> Function(int y, {List<Function> x}) m10<B extends core.int>(
-          int x) =>
-      null;
-  core.List<core.int> Function([int x]) m11<B extends core.int>(int x) => null;
-  core.List<core.int> Function(List<Function> x0) m12<B extends core.int>(
-          int x) =>
-      null;
-  core.List<core.int> Function(int x, [List<T> x0]) m13<B extends core.int>(
-          int x) =>
-      null;
-  List<T> Function(int x0, {Function x}) m14<B extends core.int>(int x) => null;
-  List<T> Function([List<T> x]) m15<B extends core.int>(int x) => null;
-  Function(int y, [Function x]) m16<B extends core.int>(int x) => null;
-  Function(int x0, [core.List<core.int> x1]) m17<B extends core.int>(int x) =>
-      null;
-  void Function({int x}) m18<B extends core.int>(int x) => null;
-  void Function(core.List<core.int> x) m19<B extends core.int>(int x) => null;
-  int Function<A>(List<Function> x) m20<B extends core.int>(int x) => null;
-  core.List<core.int> Function<A>(core.List<core.int> x)
-      m21<B extends core.int>(int x) => null;
-  A Function<A>(List<T> x) m22<B extends core.int>(int x) => null;
-  B Function(List<Function> x) m23<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int y, {core.List<core.int> x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, {core.List<core.int> x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int y, {core.List<core.int> x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(int x0, {List<Function> x})
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x0, {List<Function> x}) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(int x0, {List<Function> x}));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function({Function x})
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function({Function x}) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function({Function x}));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(int x, [int x2])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int x, [int x2]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int x, [int x2]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// A Function<A>(core.List<core.int> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(core.List<core.int> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is A Function<A>(core.List<core.int> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function({Function x}) Function<B extends core.int>(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function({Function x}) Function<B extends core.int>(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(
-        m5 is int Function({Function x}) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(List<T> x) Function<B extends core.int>(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(List<T> x) Function<B extends core.int>(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is int Function(List<T> x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(int x1, [Function x]) Function<B extends core.int>(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, [Function x]) Function<B extends core.int>(int x)
-        l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x1, [Function x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function([core.List<core.int> x1]) Function<B extends core.int>(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function([core.List<core.int> x1]) Function<B extends core.int>(
-        int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function([core.List<core.int> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int x, [int x1]) Function<B extends core.int>(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x, [int x1]) Function<B extends core.int>(int x)
-        l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int x, [int x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int y, {List<Function> x}) Function<B extends core.int>(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, {List<Function> x})
-        Function<B extends core.int>(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int y, {List<Function> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function([int x]) Function<B extends core.int>(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([int x]) Function<B extends core.int>(int x)
-        l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function([int x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(List<Function> x1) Function<B extends core.int>(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(List<Function> x1)
-        Function<B extends core.int>(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(List<Function> x1)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int x, [List<T> x1]) Function<B extends core.int>(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x, [List<T> x1])
-        Function<B extends core.int>(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(int x, [List<T> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x1, {Function x}) Function<B extends core.int>(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, {Function x}) Function<B extends core.int>(int x)
-        l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int x1, {Function x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function([List<T> x]) Function<B extends core.int>(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([List<T> x]) Function<B extends core.int>(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function([List<T> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int y, [Function x]) Function<B extends core.int>(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int y, [Function x]) Function<B extends core.int>(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int y, [Function x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x2, [core.List<core.int> x3]) Function<B extends core.int>(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x2, [core.List<core.int> x3]) Function<B extends core.int>(
-        int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x2, [core.List<core.int> x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function({int x}) Function<B extends core.int>(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function({int x}) Function<B extends core.int>(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(
-        m18 is void Function({int x}) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(core.List<core.int> x) Function<B extends core.int>(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(core.List<core.int> x) Function<B extends core.int>(int x)
-        l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(core.List<core.int> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(List<Function> x) Function<B extends core.int>(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(List<Function> x) Function<B extends core.int>(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is int Function<A>(List<Function> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(core.List<core.int> x) Function<B extends core.int>(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(core.List<core.int> x)
-        Function<B extends core.int>(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is core.List<core.int> Function<A>(core.List<core.int> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(List<T> x) Function<B extends core.int>(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(List<T> x) Function<B extends core.int>(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(
-        m22 is A Function<A>(List<T> x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-    // The static function has its T always set to int.
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isFalse(f22 is F22<bool>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    Expect.isFalse(confuse(f22) is F22<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x22 = (f22 as dynamic);
-      });
-      Expect.throws(() {
-        x22 = confuse(f22);
-      });
-      Expect.throws(() {
-        l22 = (f22 as dynamic);
-      });
-      Expect.throws(() {
-        l22 = confuse(f22);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m22 is F22<int>);
-      Expect.equals(tIsBool, m22 is F22<bool>);
-      Expect.equals(tIsInt, confuse(m22) is F22<int>);
-      Expect.equals(tIsBool, confuse(m22) is F22<bool>);
-    }
-  }
-
-  /// B Function(List<Function> x) Function<B extends core.int>(int x)
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    B Function(List<Function> x) Function<B extends core.int>(int x) l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is B Function(List<Function> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U43().runTests();
-  new U43<int>(tIsInt: true).runTests();
-  new U43<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type44_test.dart b/tests/language_2/function_type/function_type44_test.dart
deleted file mode 100644
index 8b470c3fcf6..00000000000
--- a/tests/language_2/function_type/function_type44_test.dart
+++ /dev/null
@@ -1,946 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(List<T> x);
-typedef F1<T> = List<Function> Function(int y, {List<Function> x});
-typedef F2<T> = List<T> Function(int x0, {Function x});
-typedef F3<T> = void Function({int x});
-typedef F4<T> = A Function<A>(List<T> x);
-typedef F5<T> = int Function(int x0, {Function x}) Function();
-typedef F6<T> = int Function([List<T> x]) Function();
-typedef F7<T> = Function Function(int y, [Function x]) Function();
-typedef F8<T> = Function Function(int x1, [core.List<core.int> x2]) Function();
-typedef F9<T> = List<Function> Function({int x}) Function();
-typedef F10<T> = List<Function> Function(core.List<core.int> x) Function();
-typedef F11<T> = core.List<core.int> Function(int x0, [int x]) Function();
-typedef F12<T> = core.List<core.int> Function([List<Function> x1]) Function();
-typedef F13<T> = core.List<core.int> Function({List<T> x}) Function();
-typedef F14<T> = List<T> Function(int y, {Function x}) Function();
-typedef F15<T> = List<T> Function(int x0, [List<T> x]) Function();
-typedef F16<T> = Function(Function x0) Function();
-typedef F17<T> = Function(int x, [core.List<core.int> x2]) Function();
-typedef F18<T> = void Function(int x0, {int x}) Function();
-typedef F19<T> = void Function([core.List<core.int> x]) Function();
-typedef F20<T> = int Function<A>(core.List<core.int> x) Function();
-typedef F21<T> = core.List<core.int> Function<A>(List<T> x) Function();
-typedef F22<T> = A Function<A>() Function();
-typedef F23<T> = B Function(core.List<core.int> x)
-    Function<B extends core.int>();
-
-int f0(List<int> x) => null;
-List<Function> f1(int y, {List<Function> x}) => null;
-List<int> f2(int x0, {Function x}) => null;
-void f3({int x}) => null;
-A f4<A>(List<int> x) => null;
-int Function(int x0, {Function x}) f5() => null;
-int Function([List<int> x]) f6() => null;
-Function Function(int y, [Function x]) f7() => null;
-Function Function(int x0, [core.List<core.int> x1]) f8() => null;
-List<Function> Function({int x}) f9() => null;
-List<Function> Function(core.List<core.int> x) f10() => null;
-core.List<core.int> Function(int x0, [int x]) f11() => null;
-core.List<core.int> Function([List<Function> x0]) f12() => null;
-core.List<core.int> Function({List<int> x}) f13() => null;
-List<int> Function(int y, {Function x}) f14() => null;
-List<int> Function(int x0, [List<int> x]) f15() => null;
-Function(Function x0) f16() => null;
-Function(int x, [core.List<core.int> x0]) f17() => null;
-void Function(int x0, {int x}) f18() => null;
-void Function([core.List<core.int> x]) f19() => null;
-int Function<A>(core.List<core.int> x) f20() => null;
-core.List<core.int> Function<A>(List<int> x) f21() => null;
-A Function<A>() f22() => null;
-B Function(core.List<core.int> x) f23<B extends core.int>() => null;
-
-class U44<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(List<T> x) x0;
-  List<Function> Function(int y, {List<Function> x}) x1;
-  List<T> Function(int x0, {Function x}) x2;
-  void Function({int x}) x3;
-  A Function<A>(List<T> x) x4;
-  int Function(int x0, {Function x}) Function() x5;
-  int Function([List<T> x]) Function() x6;
-  Function Function(int y, [Function x]) Function() x7;
-  Function Function(int x1, [core.List<core.int> x2]) Function() x8;
-  List<Function> Function({int x}) Function() x9;
-  List<Function> Function(core.List<core.int> x) Function() x10;
-  core.List<core.int> Function(int x0, [int x]) Function() x11;
-  core.List<core.int> Function([List<Function> x1]) Function() x12;
-  core.List<core.int> Function({List<T> x}) Function() x13;
-  List<T> Function(int y, {Function x}) Function() x14;
-  List<T> Function(int x0, [List<T> x]) Function() x15;
-  Function(Function x0) Function() x16;
-  Function(int x, [core.List<core.int> x2]) Function() x17;
-  void Function(int x0, {int x}) Function() x18;
-  void Function([core.List<core.int> x]) Function() x19;
-  int Function<A>(core.List<core.int> x) Function() x20;
-  core.List<core.int> Function<A>(List<T> x) Function() x21;
-  A Function<A>() Function() x22;
-  B Function(core.List<core.int> x) Function<B extends core.int>() x23;
-
-  U44({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(List<T> x) => null;
-  List<Function> m1(int y, {List<Function> x}) => null;
-  List<T> m2(int x0, {Function x}) => null;
-  void m3({int x}) => null;
-  A m4<A>(List<T> x) => null;
-  int Function(int x0, {Function x}) m5() => null;
-  int Function([List<T> x]) m6() => null;
-  Function Function(int y, [Function x]) m7() => null;
-  Function Function(int x0, [core.List<core.int> x1]) m8() => null;
-  List<Function> Function({int x}) m9() => null;
-  List<Function> Function(core.List<core.int> x) m10() => null;
-  core.List<core.int> Function(int x0, [int x]) m11() => null;
-  core.List<core.int> Function([List<Function> x0]) m12() => null;
-  core.List<core.int> Function({List<T> x}) m13() => null;
-  List<T> Function(int y, {Function x}) m14() => null;
-  List<T> Function(int x0, [List<T> x]) m15() => null;
-  Function(Function x0) m16() => null;
-  Function(int x, [core.List<core.int> x0]) m17() => null;
-  void Function(int x0, {int x}) m18() => null;
-  void Function([core.List<core.int> x]) m19() => null;
-  int Function<A>(core.List<core.int> x) m20() => null;
-  core.List<core.int> Function<A>(List<T> x) m21() => null;
-  A Function<A>() m22() => null;
-  B Function(core.List<core.int> x) m23<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(List<T> x)
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(List<T> x) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(List<T> x));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-    // The static function has its T always set to int.
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isFalse(f0 is F0<bool>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    Expect.isFalse(confuse(f0) is F0<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x0 = (f0 as dynamic);
-      });
-      Expect.throws(() {
-        x0 = confuse(f0);
-      });
-      Expect.throws(() {
-        l0 = (f0 as dynamic);
-      });
-      Expect.throws(() {
-        l0 = confuse(f0);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m0 is F0<int>);
-      Expect.equals(true, m0 is F0<bool>);
-      Expect.equals(true, confuse(m0) is F0<int>);
-      Expect.equals(true, confuse(m0) is F0<bool>);
-    }
-  }
-
-  /// List<Function> Function(int y, {List<Function> x})
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, {List<Function> x}) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(int y, {List<Function> x}));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(int x0, {Function x})
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x0, {Function x}) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int x0, {Function x}));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function({int x})
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function({int x}) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function({int x}));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// A Function<A>(List<T> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(List<T> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is A Function<A>(List<T> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-    // The static function has its T always set to int.
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isFalse(f4 is F4<bool>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    Expect.isFalse(confuse(f4) is F4<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        x4 = confuse(f4);
-      });
-      Expect.throws(() {
-        l4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        l4 = confuse(f4);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m4 is F4<int>);
-      Expect.equals(true, m4 is F4<bool>);
-      Expect.equals(true, confuse(m4) is F4<int>);
-      Expect.equals(true, confuse(m4) is F4<bool>);
-    }
-  }
-
-  /// int Function(int x0, {Function x}) Function()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x0, {Function x}) Function() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x0, {Function x}) Function());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function([List<T> x]) Function()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function([List<T> x]) Function() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function([List<T> x]) Function());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(int y, [Function x]) Function()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, [Function x]) Function() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int y, [Function x]) Function());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x1, [core.List<core.int> x2]) Function()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, [core.List<core.int> x2]) Function() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(
-        m8 is Function Function(int x1, [core.List<core.int> x2]) Function());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function({int x}) Function()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function({int x}) Function() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function({int x}) Function());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(core.List<core.int> x) Function()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(core.List<core.int> x) Function() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(
-        m10 is List<Function> Function(core.List<core.int> x) Function());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int x0, [int x]) Function()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x0, [int x]) Function() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is core.List<core.int> Function(int x0, [int x]) Function());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function([List<Function> x1]) Function()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([List<Function> x1]) Function() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(
-        m12 is core.List<core.int> Function([List<Function> x1]) Function());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function({List<T> x}) Function()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function({List<T> x}) Function() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function({List<T> x}) Function());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, {Function x}) Function()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, {Function x}) Function() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int y, {Function x}) Function());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x0, [List<T> x]) Function()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x0, [List<T> x]) Function() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x0, [List<T> x]) Function());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(Function x0) Function()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(Function x0) Function() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(Function x0) Function());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x, [core.List<core.int> x2]) Function()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x, [core.List<core.int> x2]) Function() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x, [core.List<core.int> x2]) Function());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int x0, {int x}) Function()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x0, {int x}) Function() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x0, {int x}) Function());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function([core.List<core.int> x]) Function()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function([core.List<core.int> x]) Function() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function([core.List<core.int> x]) Function());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(core.List<core.int> x) Function()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(core.List<core.int> x) Function() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is int Function<A>(core.List<core.int> x) Function());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(List<T> x) Function()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(List<T> x) Function() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is core.List<core.int> Function<A>(List<T> x) Function());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// A Function<A>() Function()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>() Function() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is A Function<A>() Function());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// B Function(core.List<core.int> x) Function<B extends core.int>()
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    B Function(core.List<core.int> x) Function<B extends core.int>() l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is B Function(core.List<core.int> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U44().runTests();
-  new U44<int>(tIsInt: true).runTests();
-  new U44<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type45_test.dart b/tests/language_2/function_type/function_type45_test.dart
deleted file mode 100644
index 62823998662..00000000000
--- a/tests/language_2/function_type/function_type45_test.dart
+++ /dev/null
@@ -1,928 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function([List<T> x]);
-typedef F1<T> = List<Function> Function(core.List<core.int> x);
-typedef F2<T> = List<T> Function(int y, {Function x});
-typedef F3<T> = void Function(int x0, {int x});
-typedef F4<T> = A Function<A>();
-typedef F5<T> = int Function(int x1, {Function x}) Function(int x);
-typedef F6<T> = int Function([List<T> x]) Function(int x);
-typedef F7<T> = Function Function(int y, [Function x]) Function(int x);
-typedef F8<T> = Function Function(int x2, [core.List<core.int> x3]) Function(
-    int x);
-typedef F9<T> = List<Function> Function({int x}) Function(int x);
-typedef F10<T> = List<Function> Function(core.List<core.int> x) Function(int x);
-typedef F11<T> = core.List<core.int> Function(int x1, [int x]) Function(int x);
-typedef F12<T> = core.List<core.int> Function([List<Function> x1]) Function(
-    int x);
-typedef F13<T> = core.List<core.int> Function({List<T> x}) Function(int x);
-typedef F14<T> = List<T> Function(int y, {Function x}) Function(int x);
-typedef F15<T> = List<T> Function(int x1, [List<T> x]) Function(int x);
-typedef F16<T> = Function(Function x1) Function(int x);
-typedef F17<T> = Function(int x, [core.List<core.int> x1]) Function(int x);
-typedef F18<T> = void Function(int x1, {int x}) Function(int x);
-typedef F19<T> = void Function([core.List<core.int> x]) Function(int x);
-typedef F20<T> = int Function<A>(core.List<core.int> x) Function(int x);
-typedef F21<T> = core.List<core.int> Function<A>(List<T> x) Function(int x);
-typedef F22<T> = A Function<A>() Function(int x);
-typedef F23<T> = B Function(core.List<core.int> x) Function<B extends core.int>(
-    int x);
-
-int f0([List<int> x]) => null;
-List<Function> f1(core.List<core.int> x) => null;
-List<int> f2(int y, {Function x}) => null;
-void f3(int x0, {int x}) => null;
-A f4<A>() => null;
-int Function(int x0, {Function x}) f5(int x) => null;
-int Function([List<int> x]) f6(int x) => null;
-Function Function(int y, [Function x]) f7(int x) => null;
-Function Function(int x0, [core.List<core.int> x1]) f8(int x) => null;
-List<Function> Function({int x}) f9(int x) => null;
-List<Function> Function(core.List<core.int> x) f10(int x) => null;
-core.List<core.int> Function(int x0, [int x]) f11(int x) => null;
-core.List<core.int> Function([List<Function> x0]) f12(int x) => null;
-core.List<core.int> Function({List<int> x}) f13(int x) => null;
-List<int> Function(int y, {Function x}) f14(int x) => null;
-List<int> Function(int x0, [List<int> x]) f15(int x) => null;
-Function(Function x0) f16(int x) => null;
-Function(int x, [core.List<core.int> x0]) f17(int x) => null;
-void Function(int x0, {int x}) f18(int x) => null;
-void Function([core.List<core.int> x]) f19(int x) => null;
-int Function<A>(core.List<core.int> x) f20(int x) => null;
-core.List<core.int> Function<A>(List<int> x) f21(int x) => null;
-A Function<A>() f22(int x) => null;
-B Function(core.List<core.int> x) f23<B extends core.int>(int x) => null;
-
-class U45<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function([List<T> x]) x0;
-  List<Function> Function(core.List<core.int> x) x1;
-  List<T> Function(int y, {Function x}) x2;
-  void Function(int x0, {int x}) x3;
-  A Function<A>() x4;
-  int Function(int x1, {Function x}) Function(int x) x5;
-  int Function([List<T> x]) Function(int x) x6;
-  Function Function(int y, [Function x]) Function(int x) x7;
-  Function Function(int x2, [core.List<core.int> x3]) Function(int x) x8;
-  List<Function> Function({int x}) Function(int x) x9;
-  List<Function> Function(core.List<core.int> x) Function(int x) x10;
-  core.List<core.int> Function(int x1, [int x]) Function(int x) x11;
-  core.List<core.int> Function([List<Function> x1]) Function(int x) x12;
-  core.List<core.int> Function({List<T> x}) Function(int x) x13;
-  List<T> Function(int y, {Function x}) Function(int x) x14;
-  List<T> Function(int x1, [List<T> x]) Function(int x) x15;
-  Function(Function x1) Function(int x) x16;
-  Function(int x, [core.List<core.int> x1]) Function(int x) x17;
-  void Function(int x1, {int x}) Function(int x) x18;
-  void Function([core.List<core.int> x]) Function(int x) x19;
-  int Function<A>(core.List<core.int> x) Function(int x) x20;
-  core.List<core.int> Function<A>(List<T> x) Function(int x) x21;
-  A Function<A>() Function(int x) x22;
-  B Function(core.List<core.int> x) Function<B extends core.int>(int x) x23;
-
-  U45({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0([List<T> x]) => null;
-  List<Function> m1(core.List<core.int> x) => null;
-  List<T> m2(int y, {Function x}) => null;
-  void m3(int x0, {int x}) => null;
-  A m4<A>() => null;
-  int Function(int x0, {Function x}) m5(int x) => null;
-  int Function([List<T> x]) m6(int x) => null;
-  Function Function(int y, [Function x]) m7(int x) => null;
-  Function Function(int x0, [core.List<core.int> x1]) m8(int x) => null;
-  List<Function> Function({int x}) m9(int x) => null;
-  List<Function> Function(core.List<core.int> x) m10(int x) => null;
-  core.List<core.int> Function(int x0, [int x]) m11(int x) => null;
-  core.List<core.int> Function([List<Function> x0]) m12(int x) => null;
-  core.List<core.int> Function({List<T> x}) m13(int x) => null;
-  List<T> Function(int y, {Function x}) m14(int x) => null;
-  List<T> Function(int x0, [List<T> x]) m15(int x) => null;
-  Function(Function x0) m16(int x) => null;
-  Function(int x, [core.List<core.int> x0]) m17(int x) => null;
-  void Function(int x0, {int x}) m18(int x) => null;
-  void Function([core.List<core.int> x]) m19(int x) => null;
-  int Function<A>(core.List<core.int> x) m20(int x) => null;
-  core.List<core.int> Function<A>(List<T> x) m21(int x) => null;
-  A Function<A>() m22(int x) => null;
-  B Function(core.List<core.int> x) m23<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function([List<T> x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function([List<T> x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function([List<T> x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-    // The static function has its T always set to int.
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isFalse(f0 is F0<bool>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    Expect.isFalse(confuse(f0) is F0<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x0 = (f0 as dynamic);
-      });
-      Expect.throws(() {
-        x0 = confuse(f0);
-      });
-      Expect.throws(() {
-        l0 = (f0 as dynamic);
-      });
-      Expect.throws(() {
-        l0 = confuse(f0);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m0 is F0<int>);
-      Expect.equals(true, m0 is F0<bool>);
-      Expect.equals(true, confuse(m0) is F0<int>);
-      Expect.equals(true, confuse(m0) is F0<bool>);
-    }
-  }
-
-  /// List<Function> Function(core.List<core.int> x)
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(core.List<core.int> x) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(core.List<core.int> x));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(int y, {Function x})
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, {Function x}) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int y, {Function x}));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(int x0, {int x})
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int x0, {int x}) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int x0, {int x}));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// A Function<A>()
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    A Function<A>() l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is A Function<A>());
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x1, {Function x}) Function(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, {Function x}) Function(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x1, {Function x}) Function(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function([List<T> x]) Function(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function([List<T> x]) Function(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function([List<T> x]) Function(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(int y, [Function x]) Function(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, [Function x]) Function(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int y, [Function x]) Function(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x2, [core.List<core.int> x3]) Function(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x2, [core.List<core.int> x3]) Function(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x2, [core.List<core.int> x3])
-        Function(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function({int x}) Function(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function({int x}) Function(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function({int x}) Function(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(core.List<core.int> x) Function(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(core.List<core.int> x) Function(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(
-        m10 is List<Function> Function(core.List<core.int> x) Function(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int x1, [int x]) Function(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, [int x]) Function(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is core.List<core.int> Function(int x1, [int x]) Function(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function([List<Function> x1]) Function(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([List<Function> x1]) Function(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function([List<Function> x1])
-        Function(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function({List<T> x}) Function(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function({List<T> x}) Function(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(
-        m13 is core.List<core.int> Function({List<T> x}) Function(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, {Function x}) Function(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, {Function x}) Function(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int y, {Function x}) Function(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x1, [List<T> x]) Function(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, [List<T> x]) Function(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x1, [List<T> x]) Function(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(Function x1) Function(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(Function x1) Function(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(Function x1) Function(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x, [core.List<core.int> x1]) Function(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x, [core.List<core.int> x1]) Function(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(
-        m17 is Function(int x, [core.List<core.int> x1]) Function(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int x1, {int x}) Function(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, {int x}) Function(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x1, {int x}) Function(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function([core.List<core.int> x]) Function(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function([core.List<core.int> x]) Function(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(
-        m19 is void Function([core.List<core.int> x]) Function(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(core.List<core.int> x) Function(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(core.List<core.int> x) Function(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(
-        m20 is int Function<A>(core.List<core.int> x) Function(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(List<T> x) Function(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(List<T> x) Function(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(
-        m21 is core.List<core.int> Function<A>(List<T> x) Function(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// A Function<A>() Function(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>() Function(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is A Function<A>() Function(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// B Function(core.List<core.int> x) Function<B extends core.int>(int x)
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    B Function(core.List<core.int> x) Function<B extends core.int>(int x) l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is B Function(core.List<core.int> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U45().runTests();
-  new U45<int>(tIsInt: true).runTests();
-  new U45<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type46_test.dart b/tests/language_2/function_type/function_type46_test.dart
deleted file mode 100644
index 7349efb2680..00000000000
--- a/tests/language_2/function_type/function_type46_test.dart
+++ /dev/null
@@ -1,987 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int x0, [List<T> x]);
-typedef F1<T> = List<Function> Function([core.List<core.int> x]);
-typedef F2<T> = List<T> Function(List<Function> x);
-typedef F3<T> = void Function(int y, {int x});
-typedef F4<T> = A Function<A>(A x);
-typedef F5<T> = int Function(int x1, {Function x})
-    Function<B extends core.int>();
-typedef F6<T> = int Function([List<T> x]) Function<B extends core.int>();
-typedef F7<T> = Function Function(int y, [Function x])
-    Function<B extends core.int>();
-typedef F8<T> = Function Function(int x2, [core.List<core.int> x3])
-    Function<B extends core.int>();
-typedef F9<T> = List<Function> Function({int x}) Function<B extends core.int>();
-typedef F10<T> = List<Function> Function(core.List<core.int> x)
-    Function<B extends core.int>();
-typedef F11<T> = core.List<core.int> Function(int x1, [int x])
-    Function<B extends core.int>();
-typedef F12<T> = core.List<core.int> Function([List<Function> x1])
-    Function<B extends core.int>();
-typedef F13<T> = core.List<core.int> Function({List<T> x})
-    Function<B extends core.int>();
-typedef F14<T> = List<T> Function(int y, {Function x})
-    Function<B extends core.int>();
-typedef F15<T> = List<T> Function(int x1, [List<T> x])
-    Function<B extends core.int>();
-typedef F16<T> = Function(Function x1) Function<B extends core.int>();
-typedef F17<T> = Function(int x, [core.List<core.int> x1])
-    Function<B extends core.int>();
-typedef F18<T> = void Function(int x1, {int x}) Function<B extends core.int>();
-typedef F19<T> = void Function([core.List<core.int> x])
-    Function<B extends core.int>();
-typedef F20<T> = int Function<A>(core.List<core.int> x)
-    Function<B extends core.int>();
-typedef F21<T> = core.List<core.int> Function<A>(List<T> x)
-    Function<B extends core.int>();
-typedef F22<T> = A Function<A>() Function<B extends core.int>();
-typedef F23<T> = B Function(List<T> x) Function<B extends core.int>();
-
-int f0(int x0, [List<int> x]) => null;
-List<Function> f1([core.List<core.int> x]) => null;
-List<int> f2(List<Function> x) => null;
-void f3(int y, {int x}) => null;
-A f4<A>(A x) => null;
-int Function(int x0, {Function x}) f5<B extends core.int>() => null;
-int Function([List<int> x]) f6<B extends core.int>() => null;
-Function Function(int y, [Function x]) f7<B extends core.int>() => null;
-Function Function(int x0, [core.List<core.int> x1]) f8<B extends core.int>() =>
-    null;
-List<Function> Function({int x}) f9<B extends core.int>() => null;
-List<Function> Function(core.List<core.int> x) f10<B extends core.int>() =>
-    null;
-core.List<core.int> Function(int x0, [int x]) f11<B extends core.int>() => null;
-core.List<core.int> Function([List<Function> x0]) f12<B extends core.int>() =>
-    null;
-core.List<core.int> Function({List<int> x}) f13<B extends core.int>() => null;
-List<int> Function(int y, {Function x}) f14<B extends core.int>() => null;
-List<int> Function(int x0, [List<int> x]) f15<B extends core.int>() => null;
-Function(Function x0) f16<B extends core.int>() => null;
-Function(int x, [core.List<core.int> x0]) f17<B extends core.int>() => null;
-void Function(int x0, {int x}) f18<B extends core.int>() => null;
-void Function([core.List<core.int> x]) f19<B extends core.int>() => null;
-int Function<A>(core.List<core.int> x) f20<B extends core.int>() => null;
-core.List<core.int> Function<A>(List<int> x) f21<B extends core.int>() => null;
-A Function<A>() f22<B extends core.int>() => null;
-B Function(List<int> x) f23<B extends core.int>() => null;
-
-class U46<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int x0, [List<T> x]) x0;
-  List<Function> Function([core.List<core.int> x]) x1;
-  List<T> Function(List<Function> x) x2;
-  void Function(int y, {int x}) x3;
-  A Function<A>(A x) x4;
-  int Function(int x1, {Function x}) Function<B extends core.int>() x5;
-  int Function([List<T> x]) Function<B extends core.int>() x6;
-  Function Function(int y, [Function x]) Function<B extends core.int>() x7;
-  Function Function(int x2, [core.List<core.int> x3])
-      Function<B extends core.int>() x8;
-  List<Function> Function({int x}) Function<B extends core.int>() x9;
-  List<Function> Function(core.List<core.int> x) Function<B extends core.int>()
-      x10;
-  core.List<core.int> Function(int x1, [int x]) Function<B extends core.int>()
-      x11;
-  core.List<core.int> Function([List<Function> x1])
-      Function<B extends core.int>() x12;
-  core.List<core.int> Function({List<T> x}) Function<B extends core.int>() x13;
-  List<T> Function(int y, {Function x}) Function<B extends core.int>() x14;
-  List<T> Function(int x1, [List<T> x]) Function<B extends core.int>() x15;
-  Function(Function x1) Function<B extends core.int>() x16;
-  Function(int x, [core.List<core.int> x1]) Function<B extends core.int>() x17;
-  void Function(int x1, {int x}) Function<B extends core.int>() x18;
-  void Function([core.List<core.int> x]) Function<B extends core.int>() x19;
-  int Function<A>(core.List<core.int> x) Function<B extends core.int>() x20;
-  core.List<core.int> Function<A>(List<T> x) Function<B extends core.int>() x21;
-  A Function<A>() Function<B extends core.int>() x22;
-  B Function(List<T> x) Function<B extends core.int>() x23;
-
-  U46({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int x0, [List<T> x]) => null;
-  List<Function> m1([core.List<core.int> x]) => null;
-  List<T> m2(List<Function> x) => null;
-  void m3(int y, {int x}) => null;
-  A m4<A>(A x) => null;
-  int Function(int x0, {Function x}) m5<B extends core.int>() => null;
-  int Function([List<T> x]) m6<B extends core.int>() => null;
-  Function Function(int y, [Function x]) m7<B extends core.int>() => null;
-  Function Function(int x0, [core.List<core.int> x1])
-      m8<B extends core.int>() => null;
-  List<Function> Function({int x}) m9<B extends core.int>() => null;
-  List<Function> Function(core.List<core.int> x) m10<B extends core.int>() =>
-      null;
-  core.List<core.int> Function(int x0, [int x]) m11<B extends core.int>() =>
-      null;
-  core.List<core.int> Function([List<Function> x0]) m12<B extends core.int>() =>
-      null;
-  core.List<core.int> Function({List<T> x}) m13<B extends core.int>() => null;
-  List<T> Function(int y, {Function x}) m14<B extends core.int>() => null;
-  List<T> Function(int x0, [List<T> x]) m15<B extends core.int>() => null;
-  Function(Function x0) m16<B extends core.int>() => null;
-  Function(int x, [core.List<core.int> x0]) m17<B extends core.int>() => null;
-  void Function(int x0, {int x}) m18<B extends core.int>() => null;
-  void Function([core.List<core.int> x]) m19<B extends core.int>() => null;
-  int Function<A>(core.List<core.int> x) m20<B extends core.int>() => null;
-  core.List<core.int> Function<A>(List<T> x) m21<B extends core.int>() => null;
-  A Function<A>() m22<B extends core.int>() => null;
-  B Function(List<T> x) m23<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int x0, [List<T> x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int x0, [List<T> x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int x0, [List<T> x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-    // The static function has its T always set to int.
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isFalse(f0 is F0<bool>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    Expect.isFalse(confuse(f0) is F0<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x0 = (f0 as dynamic);
-      });
-      Expect.throws(() {
-        x0 = confuse(f0);
-      });
-      Expect.throws(() {
-        l0 = (f0 as dynamic);
-      });
-      Expect.throws(() {
-        l0 = confuse(f0);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m0 is F0<int>);
-      Expect.equals(true, m0 is F0<bool>);
-      Expect.equals(true, confuse(m0) is F0<int>);
-      Expect.equals(true, confuse(m0) is F0<bool>);
-    }
-  }
-
-  /// List<Function> Function([core.List<core.int> x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([core.List<core.int> x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function([core.List<core.int> x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(List<Function> x)
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(List<Function> x) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(List<Function> x));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(int y, {int x})
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, {int x}) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int y, {int x}));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// A Function<A>(A x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(A x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is A Function<A>(A x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x1, {Function x}) Function<B extends core.int>()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, {Function x}) Function<B extends core.int>() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x1, {Function x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function([List<T> x]) Function<B extends core.int>()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function([List<T> x]) Function<B extends core.int>() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is int Function([List<T> x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(int y, [Function x]) Function<B extends core.int>()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, [Function x]) Function<B extends core.int>() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int y, [Function x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x2, [core.List<core.int> x3]) Function<B extends core.int>()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x2, [core.List<core.int> x3])
-        Function<B extends core.int>() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x2, [core.List<core.int> x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function({int x}) Function<B extends core.int>()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function({int x}) Function<B extends core.int>() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(
-        m9 is List<Function> Function({int x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(core.List<core.int> x) Function<B extends core.int>()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(core.List<core.int> x)
-        Function<B extends core.int>() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(core.List<core.int> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int x1, [int x]) Function<B extends core.int>()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, [int x]) Function<B extends core.int>()
-        l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(int x1, [int x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function([List<Function> x1]) Function<B extends core.int>()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([List<Function> x1])
-        Function<B extends core.int>() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function([List<Function> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function({List<T> x}) Function<B extends core.int>()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function({List<T> x}) Function<B extends core.int>()
-        l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function({List<T> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, {Function x}) Function<B extends core.int>()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, {Function x}) Function<B extends core.int>() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int y, {Function x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x1, [List<T> x]) Function<B extends core.int>()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, [List<T> x]) Function<B extends core.int>() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x1, [List<T> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(Function x1) Function<B extends core.int>()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(Function x1) Function<B extends core.int>() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(Function x1) Function<B extends core.int>());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x, [core.List<core.int> x1]) Function<B extends core.int>()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x, [core.List<core.int> x1]) Function<B extends core.int>()
-        l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x, [core.List<core.int> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int x1, {int x}) Function<B extends core.int>()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, {int x}) Function<B extends core.int>() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(
-        m18 is void Function(int x1, {int x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function([core.List<core.int> x]) Function<B extends core.int>()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function([core.List<core.int> x]) Function<B extends core.int>() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function([core.List<core.int> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(core.List<core.int> x) Function<B extends core.int>()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(core.List<core.int> x) Function<B extends core.int>() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is int Function<A>(core.List<core.int> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(List<T> x) Function<B extends core.int>()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(List<T> x) Function<B extends core.int>()
-        l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is core.List<core.int> Function<A>(List<T> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// A Function<A>() Function<B extends core.int>()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>() Function<B extends core.int>() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is A Function<A>() Function<B extends core.int>());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// B Function(List<T> x) Function<B extends core.int>()
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    B Function(List<T> x) Function<B extends core.int>() l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is B Function(List<T> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-    // The static function has its T always set to int.
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isFalse(f23 is F23<bool>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    Expect.isFalse(confuse(f23) is F23<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x23 = (f23 as dynamic);
-      });
-      Expect.throws(() {
-        x23 = confuse(f23);
-      });
-      Expect.throws(() {
-        l23 = (f23 as dynamic);
-      });
-      Expect.throws(() {
-        l23 = confuse(f23);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m23 is F23<int>);
-      Expect.equals(tIsBool, m23 is F23<bool>);
-      Expect.equals(tIsInt, confuse(m23) is F23<int>);
-      Expect.equals(tIsBool, confuse(m23) is F23<bool>);
-    }
-  }
-}
-
-void main() {
-  new U46().runTests();
-  new U46<int>(tIsInt: true).runTests();
-  new U46<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type47_test.dart b/tests/language_2/function_type/function_type47_test.dart
deleted file mode 100644
index 3a49d25ec86..00000000000
--- a/tests/language_2/function_type/function_type47_test.dart
+++ /dev/null
@@ -1,1016 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int y, [List<T> x]);
-typedef F1<T> = List<Function> Function(int x0, [core.List<core.int> x]);
-typedef F2<T> = List<T> Function([List<Function> x]);
-typedef F3<T> = void Function(Function x);
-typedef F4<T> = A Function<A>(List<A> x);
-typedef F5<T> = int Function(int x1, {Function x}) Function<B extends core.int>(
-    int x);
-typedef F6<T> = int Function([List<T> x]) Function<B extends core.int>(int x);
-typedef F7<T> = Function Function(int y, [Function x])
-    Function<B extends core.int>(int x);
-typedef F8<T> = Function Function(int x2, [core.List<core.int> x3])
-    Function<B extends core.int>(int x);
-typedef F9<T> = List<Function> Function({int x}) Function<B extends core.int>(
-    int x);
-typedef F10<T> = List<Function> Function(core.List<core.int> x)
-    Function<B extends core.int>(int x);
-typedef F11<T> = core.List<core.int> Function(int x1, [int x])
-    Function<B extends core.int>(int x);
-typedef F12<T> = core.List<core.int> Function([List<Function> x1])
-    Function<B extends core.int>(int x);
-typedef F13<T> = core.List<core.int> Function({List<T> x})
-    Function<B extends core.int>(int x);
-typedef F14<T> = List<T> Function(int y, {Function x})
-    Function<B extends core.int>(int x);
-typedef F15<T> = List<T> Function(int x1, [List<T> x])
-    Function<B extends core.int>(int x);
-typedef F16<T> = Function(Function x1) Function<B extends core.int>(int x);
-typedef F17<T> = Function(int x, [core.List<core.int> x1])
-    Function<B extends core.int>(int x);
-typedef F18<T> = void Function(int x1, {int x}) Function<B extends core.int>(
-    int x);
-typedef F19<T> = void Function([core.List<core.int> x])
-    Function<B extends core.int>(int x);
-typedef F20<T> = int Function<A>(core.List<core.int> x)
-    Function<B extends core.int>(int x);
-typedef F21<T> = core.List<core.int> Function<A>(List<T> x)
-    Function<B extends core.int>(int x);
-typedef F22<T> = A Function<A>() Function<B extends core.int>(int x);
-typedef F23<T> = B Function(List<T> x) Function<B extends core.int>(int x);
-
-int f0(int y, [List<int> x]) => null;
-List<Function> f1(int x0, [core.List<core.int> x]) => null;
-List<int> f2([List<Function> x]) => null;
-void f3(Function x) => null;
-A f4<A>(List<A> x) => null;
-int Function(int x0, {Function x}) f5<B extends core.int>(int x) => null;
-int Function([List<int> x]) f6<B extends core.int>(int x) => null;
-Function Function(int y, [Function x]) f7<B extends core.int>(int x) => null;
-Function Function(int x0, [core.List<core.int> x1]) f8<B extends core.int>(
-        int x) =>
-    null;
-List<Function> Function({int x}) f9<B extends core.int>(int x) => null;
-List<Function> Function(core.List<core.int> x) f10<B extends core.int>(int x) =>
-    null;
-core.List<core.int> Function(int x0, [int x]) f11<B extends core.int>(int x) =>
-    null;
-core.List<core.int> Function([List<Function> x0]) f12<B extends core.int>(
-        int x) =>
-    null;
-core.List<core.int> Function({List<int> x}) f13<B extends core.int>(int x) =>
-    null;
-List<int> Function(int y, {Function x}) f14<B extends core.int>(int x) => null;
-List<int> Function(int x0, [List<int> x]) f15<B extends core.int>(int x) =>
-    null;
-Function(Function x0) f16<B extends core.int>(int x) => null;
-Function(int x, [core.List<core.int> x0]) f17<B extends core.int>(int x) =>
-    null;
-void Function(int x0, {int x}) f18<B extends core.int>(int x) => null;
-void Function([core.List<core.int> x]) f19<B extends core.int>(int x) => null;
-int Function<A>(core.List<core.int> x) f20<B extends core.int>(int x) => null;
-core.List<core.int> Function<A>(List<int> x) f21<B extends core.int>(int x) =>
-    null;
-A Function<A>() f22<B extends core.int>(int x) => null;
-B Function(List<int> x) f23<B extends core.int>(int x) => null;
-
-class U47<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int y, [List<T> x]) x0;
-  List<Function> Function(int x0, [core.List<core.int> x]) x1;
-  List<T> Function([List<Function> x]) x2;
-  void Function(Function x) x3;
-  A Function<A>(List<A> x) x4;
-  int Function(int x1, {Function x}) Function<B extends core.int>(int x) x5;
-  int Function([List<T> x]) Function<B extends core.int>(int x) x6;
-  Function Function(int y, [Function x]) Function<B extends core.int>(int x) x7;
-  Function Function(int x2, [core.List<core.int> x3])
-      Function<B extends core.int>(int x) x8;
-  List<Function> Function({int x}) Function<B extends core.int>(int x) x9;
-  List<Function> Function(core.List<core.int> x) Function<B extends core.int>(
-      int x) x10;
-  core.List<core.int> Function(int x1, [int x]) Function<B extends core.int>(
-      int x) x11;
-  core.List<core.int> Function([List<Function> x1])
-      Function<B extends core.int>(int x) x12;
-  core.List<core.int> Function({List<T> x}) Function<B extends core.int>(int x)
-      x13;
-  List<T> Function(int y, {Function x}) Function<B extends core.int>(int x) x14;
-  List<T> Function(int x1, [List<T> x]) Function<B extends core.int>(int x) x15;
-  Function(Function x1) Function<B extends core.int>(int x) x16;
-  Function(int x, [core.List<core.int> x1]) Function<B extends core.int>(int x)
-      x17;
-  void Function(int x1, {int x}) Function<B extends core.int>(int x) x18;
-  void Function([core.List<core.int> x]) Function<B extends core.int>(int x)
-      x19;
-  int Function<A>(core.List<core.int> x) Function<B extends core.int>(int x)
-      x20;
-  core.List<core.int> Function<A>(List<T> x) Function<B extends core.int>(int x)
-      x21;
-  A Function<A>() Function<B extends core.int>(int x) x22;
-  B Function(List<T> x) Function<B extends core.int>(int x) x23;
-
-  U47({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int y, [List<T> x]) => null;
-  List<Function> m1(int x0, [core.List<core.int> x]) => null;
-  List<T> m2([List<Function> x]) => null;
-  void m3(Function x) => null;
-  A m4<A>(List<A> x) => null;
-  int Function(int x0, {Function x}) m5<B extends core.int>(int x) => null;
-  int Function([List<T> x]) m6<B extends core.int>(int x) => null;
-  Function Function(int y, [Function x]) m7<B extends core.int>(int x) => null;
-  Function Function(int x0, [core.List<core.int> x1]) m8<B extends core.int>(
-          int x) =>
-      null;
-  List<Function> Function({int x}) m9<B extends core.int>(int x) => null;
-  List<Function> Function(core.List<core.int> x) m10<B extends core.int>(
-          int x) =>
-      null;
-  core.List<core.int> Function(int x0, [int x]) m11<B extends core.int>(
-          int x) =>
-      null;
-  core.List<core.int> Function([List<Function> x0]) m12<B extends core.int>(
-          int x) =>
-      null;
-  core.List<core.int> Function({List<T> x}) m13<B extends core.int>(int x) =>
-      null;
-  List<T> Function(int y, {Function x}) m14<B extends core.int>(int x) => null;
-  List<T> Function(int x0, [List<T> x]) m15<B extends core.int>(int x) => null;
-  Function(Function x0) m16<B extends core.int>(int x) => null;
-  Function(int x, [core.List<core.int> x0]) m17<B extends core.int>(int x) =>
-      null;
-  void Function(int x0, {int x}) m18<B extends core.int>(int x) => null;
-  void Function([core.List<core.int> x]) m19<B extends core.int>(int x) => null;
-  int Function<A>(core.List<core.int> x) m20<B extends core.int>(int x) => null;
-  core.List<core.int> Function<A>(List<T> x) m21<B extends core.int>(int x) =>
-      null;
-  A Function<A>() m22<B extends core.int>(int x) => null;
-  B Function(List<T> x) m23<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int y, [List<T> x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, [List<T> x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int y, [List<T> x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-    // The static function has its T always set to int.
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isFalse(f0 is F0<bool>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    Expect.isFalse(confuse(f0) is F0<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x0 = (f0 as dynamic);
-      });
-      Expect.throws(() {
-        x0 = confuse(f0);
-      });
-      Expect.throws(() {
-        l0 = (f0 as dynamic);
-      });
-      Expect.throws(() {
-        l0 = confuse(f0);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m0 is F0<int>);
-      Expect.equals(true, m0 is F0<bool>);
-      Expect.equals(true, confuse(m0) is F0<int>);
-      Expect.equals(true, confuse(m0) is F0<bool>);
-    }
-  }
-
-  /// List<Function> Function(int x0, [core.List<core.int> x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x0, [core.List<core.int> x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(
-        m1 is List<Function> Function(int x0, [core.List<core.int> x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function([List<Function> x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([List<Function> x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function([List<Function> x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(Function x)
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(Function x) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(Function x));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// A Function<A>(List<A> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(List<A> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is A Function<A>(List<A> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x1, {Function x}) Function<B extends core.int>(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, {Function x}) Function<B extends core.int>(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x1, {Function x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function([List<T> x]) Function<B extends core.int>(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function([List<T> x]) Function<B extends core.int>(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is int Function([List<T> x]) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(int y, [Function x]) Function<B extends core.int>(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, [Function x]) Function<B extends core.int>(int x)
-        l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int y, [Function x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x2, [core.List<core.int> x3]) Function<B extends core.int>(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x2, [core.List<core.int> x3])
-        Function<B extends core.int>(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x2, [core.List<core.int> x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function({int x}) Function<B extends core.int>(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function({int x}) Function<B extends core.int>(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function({int x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(core.List<core.int> x) Function<B extends core.int>(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(core.List<core.int> x) Function<B extends core.int>(
-        int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(core.List<core.int> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int x1, [int x]) Function<B extends core.int>(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, [int x]) Function<B extends core.int>(
-        int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(int x1, [int x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function([List<Function> x1]) Function<B extends core.int>(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([List<Function> x1])
-        Function<B extends core.int>(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function([List<Function> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function({List<T> x}) Function<B extends core.int>(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function({List<T> x}) Function<B extends core.int>(
-        int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function({List<T> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, {Function x}) Function<B extends core.int>(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, {Function x}) Function<B extends core.int>(int x)
-        l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int y, {Function x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x1, [List<T> x]) Function<B extends core.int>(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, [List<T> x]) Function<B extends core.int>(int x)
-        l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x1, [List<T> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(Function x1) Function<B extends core.int>(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(Function x1) Function<B extends core.int>(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function(Function x1) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x, [core.List<core.int> x1]) Function<B extends core.int>(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x, [core.List<core.int> x1]) Function<B extends core.int>(
-        int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x, [core.List<core.int> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int x1, {int x}) Function<B extends core.int>(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, {int x}) Function<B extends core.int>(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x1, {int x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function([core.List<core.int> x]) Function<B extends core.int>(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function([core.List<core.int> x]) Function<B extends core.int>(int x)
-        l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function([core.List<core.int> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(core.List<core.int> x) Function<B extends core.int>(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(core.List<core.int> x) Function<B extends core.int>(int x)
-        l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is int Function<A>(core.List<core.int> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(List<T> x) Function<B extends core.int>(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(List<T> x) Function<B extends core.int>(
-        int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is core.List<core.int> Function<A>(List<T> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// A Function<A>() Function<B extends core.int>(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>() Function<B extends core.int>(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is A Function<A>() Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// B Function(List<T> x) Function<B extends core.int>(int x)
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    B Function(List<T> x) Function<B extends core.int>(int x) l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(
-        m23 is B Function(List<T> x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-    // The static function has its T always set to int.
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isFalse(f23 is F23<bool>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    Expect.isFalse(confuse(f23) is F23<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x23 = (f23 as dynamic);
-      });
-      Expect.throws(() {
-        x23 = confuse(f23);
-      });
-      Expect.throws(() {
-        l23 = (f23 as dynamic);
-      });
-      Expect.throws(() {
-        l23 = confuse(f23);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m23 is F23<int>);
-      Expect.equals(tIsBool, m23 is F23<bool>);
-      Expect.equals(tIsInt, confuse(m23) is F23<int>);
-      Expect.equals(tIsBool, confuse(m23) is F23<bool>);
-    }
-  }
-}
-
-void main() {
-  new U47().runTests();
-  new U47<int>(tIsInt: true).runTests();
-  new U47<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type48_test.dart b/tests/language_2/function_type/function_type48_test.dart
deleted file mode 100644
index 07487ca186c..00000000000
--- a/tests/language_2/function_type/function_type48_test.dart
+++ /dev/null
@@ -1,924 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(List<T> x0);
-typedef F1<T> = List<Function> Function(int y, [core.List<core.int> x]);
-typedef F2<T> = List<T> Function(int x0, [List<Function> x]);
-typedef F3<T> = void Function([Function x]);
-typedef F4<T> = List<A> Function<A>(int x);
-typedef F5<T> = int Function(int y, {Function x}) Function();
-typedef F6<T> = int Function(int x0, [List<T> x]) Function();
-typedef F7<T> = Function Function(Function x0) Function();
-typedef F8<T> = Function Function(int x, [core.List<core.int> x2]) Function();
-typedef F9<T> = List<Function> Function(int x0, {int x}) Function();
-typedef F10<T> = List<Function> Function([core.List<core.int> x]) Function();
-typedef F11<T> = core.List<core.int> Function(int y, [int x]) Function();
-typedef F12<T> = core.List<core.int> Function(int x1, [List<Function> x2])
-    Function();
-typedef F13<T> = core.List<core.int> Function(int x0, {List<T> x}) Function();
-typedef F14<T> = List<T> Function(List<Function> x) Function();
-typedef F15<T> = List<T> Function(int y, [List<T> x]) Function();
-typedef F16<T> = Function([Function x1]) Function();
-typedef F17<T> = Function({core.List<core.int> x}) Function();
-typedef F18<T> = void Function(int y, {int x}) Function();
-typedef F19<T> = void Function(int x0, [core.List<core.int> x]) Function();
-typedef F20<T> = int Function<A>(List<T> x) Function();
-typedef F21<T> = core.List<core.int> Function<A>() Function();
-typedef F22<T> = A Function<A>(A x) Function();
-typedef F23<T> = B Function() Function<B extends core.int>();
-
-int f0(List<int> x0) => null;
-List<Function> f1(int y, [core.List<core.int> x]) => null;
-List<int> f2(int x0, [List<Function> x]) => null;
-void f3([Function x]) => null;
-List<A> f4<A>(int x) => null;
-int Function(int y, {Function x}) f5() => null;
-int Function(int x0, [List<int> x]) f6() => null;
-Function Function(Function x0) f7() => null;
-Function Function(int x, [core.List<core.int> x0]) f8() => null;
-List<Function> Function(int x0, {int x}) f9() => null;
-List<Function> Function([core.List<core.int> x]) f10() => null;
-core.List<core.int> Function(int y, [int x]) f11() => null;
-core.List<core.int> Function(int x0, [List<Function> x1]) f12() => null;
-core.List<core.int> Function(int x0, {List<int> x}) f13() => null;
-List<int> Function(List<Function> x) f14() => null;
-List<int> Function(int y, [List<int> x]) f15() => null;
-Function([Function x0]) f16() => null;
-Function({core.List<core.int> x}) f17() => null;
-void Function(int y, {int x}) f18() => null;
-void Function(int x0, [core.List<core.int> x]) f19() => null;
-int Function<A>(List<int> x) f20() => null;
-core.List<core.int> Function<A>() f21() => null;
-A Function<A>(A x) f22() => null;
-B Function() f23<B extends core.int>() => null;
-
-class U48<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(List<T> x0) x0;
-  List<Function> Function(int y, [core.List<core.int> x]) x1;
-  List<T> Function(int x0, [List<Function> x]) x2;
-  void Function([Function x]) x3;
-  List<A> Function<A>(int x) x4;
-  int Function(int y, {Function x}) Function() x5;
-  int Function(int x0, [List<T> x]) Function() x6;
-  Function Function(Function x0) Function() x7;
-  Function Function(int x, [core.List<core.int> x2]) Function() x8;
-  List<Function> Function(int x0, {int x}) Function() x9;
-  List<Function> Function([core.List<core.int> x]) Function() x10;
-  core.List<core.int> Function(int y, [int x]) Function() x11;
-  core.List<core.int> Function(int x1, [List<Function> x2]) Function() x12;
-  core.List<core.int> Function(int x0, {List<T> x}) Function() x13;
-  List<T> Function(List<Function> x) Function() x14;
-  List<T> Function(int y, [List<T> x]) Function() x15;
-  Function([Function x1]) Function() x16;
-  Function({core.List<core.int> x}) Function() x17;
-  void Function(int y, {int x}) Function() x18;
-  void Function(int x0, [core.List<core.int> x]) Function() x19;
-  int Function<A>(List<T> x) Function() x20;
-  core.List<core.int> Function<A>() Function() x21;
-  A Function<A>(A x) Function() x22;
-  B Function() Function<B extends core.int>() x23;
-
-  U48({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(List<T> x0) => null;
-  List<Function> m1(int y, [core.List<core.int> x]) => null;
-  List<T> m2(int x0, [List<Function> x]) => null;
-  void m3([Function x]) => null;
-  List<A> m4<A>(int x) => null;
-  int Function(int y, {Function x}) m5() => null;
-  int Function(int x0, [List<T> x]) m6() => null;
-  Function Function(Function x0) m7() => null;
-  Function Function(int x, [core.List<core.int> x0]) m8() => null;
-  List<Function> Function(int x0, {int x}) m9() => null;
-  List<Function> Function([core.List<core.int> x]) m10() => null;
-  core.List<core.int> Function(int y, [int x]) m11() => null;
-  core.List<core.int> Function(int x0, [List<Function> x1]) m12() => null;
-  core.List<core.int> Function(int x0, {List<T> x}) m13() => null;
-  List<T> Function(List<Function> x) m14() => null;
-  List<T> Function(int y, [List<T> x]) m15() => null;
-  Function([Function x0]) m16() => null;
-  Function({core.List<core.int> x}) m17() => null;
-  void Function(int y, {int x}) m18() => null;
-  void Function(int x0, [core.List<core.int> x]) m19() => null;
-  int Function<A>(List<T> x) m20() => null;
-  core.List<core.int> Function<A>() m21() => null;
-  A Function<A>(A x) m22() => null;
-  B Function() m23<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(List<T> x0)
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(List<T> x0) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(List<T> x0));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-    // The static function has its T always set to int.
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isFalse(f0 is F0<bool>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    Expect.isFalse(confuse(f0) is F0<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x0 = (f0 as dynamic);
-      });
-      Expect.throws(() {
-        x0 = confuse(f0);
-      });
-      Expect.throws(() {
-        l0 = (f0 as dynamic);
-      });
-      Expect.throws(() {
-        l0 = confuse(f0);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m0 is F0<int>);
-      Expect.equals(true, m0 is F0<bool>);
-      Expect.equals(true, confuse(m0) is F0<int>);
-      Expect.equals(true, confuse(m0) is F0<bool>);
-    }
-  }
-
-  /// List<Function> Function(int y, [core.List<core.int> x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, [core.List<core.int> x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(
-        m1 is List<Function> Function(int y, [core.List<core.int> x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(int x0, [List<Function> x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x0, [List<Function> x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int x0, [List<Function> x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function([Function x])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function([Function x]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function([Function x]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// List<A> Function<A>(int x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(int x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is List<A> Function<A>(int x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int y, {Function x}) Function()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, {Function x}) Function() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int y, {Function x}) Function());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x0, [List<T> x]) Function()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x0, [List<T> x]) Function() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int x0, [List<T> x]) Function());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(Function x0) Function()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(Function x0) Function() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(Function x0) Function());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x, [core.List<core.int> x2]) Function()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x, [core.List<core.int> x2]) Function() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(
-        m8 is Function Function(int x, [core.List<core.int> x2]) Function());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int x0, {int x}) Function()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x0, {int x}) Function() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int x0, {int x}) Function());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function([core.List<core.int> x]) Function()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([core.List<core.int> x]) Function() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(
-        m10 is List<Function> Function([core.List<core.int> x]) Function());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int y, [int x]) Function()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, [int x]) Function() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is core.List<core.int> Function(int y, [int x]) Function());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x1, [List<Function> x2]) Function()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, [List<Function> x2]) Function() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x1,
-            [List<Function> x2])
-        Function());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int x0, {List<T> x}) Function()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x0, {List<T> x}) Function() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(
-        m13 is core.List<core.int> Function(int x0, {List<T> x}) Function());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(List<Function> x) Function()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(List<Function> x) Function() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(List<Function> x) Function());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, [List<T> x]) Function()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, [List<T> x]) Function() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int y, [List<T> x]) Function());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function([Function x1]) Function()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function([Function x1]) Function() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function([Function x1]) Function());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function({core.List<core.int> x}) Function()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function({core.List<core.int> x}) Function() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function({core.List<core.int> x}) Function());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int y, {int x}) Function()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, {int x}) Function() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int y, {int x}) Function());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x0, [core.List<core.int> x]) Function()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x0, [core.List<core.int> x]) Function() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(
-        m19 is void Function(int x0, [core.List<core.int> x]) Function());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(List<T> x) Function()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(List<T> x) Function() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is int Function<A>(List<T> x) Function());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function<A>() Function()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>() Function() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is core.List<core.int> Function<A>() Function());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(A x) Function()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(A x) Function() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is A Function<A>(A x) Function());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// B Function() Function<B extends core.int>()
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    B Function() Function<B extends core.int>() l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is B Function() Function<B extends core.int>());
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U48().runTests();
-  new U48<int>(tIsInt: true).runTests();
-  new U48<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type49_test.dart b/tests/language_2/function_type/function_type49_test.dart
deleted file mode 100644
index 570f24e01dd..00000000000
--- a/tests/language_2/function_type/function_type49_test.dart
+++ /dev/null
@@ -1,928 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function([List<T> x1]);
-typedef F1<T> = List<Function> Function(core.List<core.int> x0);
-typedef F2<T> = List<T> Function(int y, [List<Function> x]);
-typedef F3<T> = void Function(int x0, [Function x]);
-typedef F4<T> = List<A> Function<A>(Function x);
-typedef F5<T> = int Function(int y, {Function x}) Function(int x);
-typedef F6<T> = int Function(int x1, [List<T> x]) Function(int x);
-typedef F7<T> = Function Function(Function x1) Function(int x);
-typedef F8<T> = Function Function(int x, [core.List<core.int> x1]) Function(
-    int x);
-typedef F9<T> = List<Function> Function(int x1, {int x}) Function(int x);
-typedef F10<T> = List<Function> Function([core.List<core.int> x]) Function(
-    int x);
-typedef F11<T> = core.List<core.int> Function(int y, [int x]) Function(int x);
-typedef F12<T> = core.List<core.int> Function(int x2, [List<Function> x3])
-    Function(int x);
-typedef F13<T> = core.List<core.int> Function(int x1, {List<T> x}) Function(
-    int x);
-typedef F14<T> = List<T> Function(List<Function> x) Function(int x);
-typedef F15<T> = List<T> Function(int y, [List<T> x]) Function(int x);
-typedef F16<T> = Function([Function x1]) Function(int x);
-typedef F17<T> = Function({core.List<core.int> x}) Function(int x);
-typedef F18<T> = void Function(int y, {int x}) Function(int x);
-typedef F19<T> = void Function(int x1, [core.List<core.int> x]) Function(int x);
-typedef F20<T> = int Function<A>(List<T> x) Function(int x);
-typedef F21<T> = core.List<core.int> Function<A>() Function(int x);
-typedef F22<T> = A Function<A>(A x) Function(int x);
-typedef F23<T> = B Function() Function<B extends core.int>(int x);
-
-int f0([List<int> x0]) => null;
-List<Function> f1(core.List<core.int> x0) => null;
-List<int> f2(int y, [List<Function> x]) => null;
-void f3(int x0, [Function x]) => null;
-List<A> f4<A>(Function x) => null;
-int Function(int y, {Function x}) f5(int x) => null;
-int Function(int x0, [List<int> x]) f6(int x) => null;
-Function Function(Function x0) f7(int x) => null;
-Function Function(int x, [core.List<core.int> x0]) f8(int x) => null;
-List<Function> Function(int x0, {int x}) f9(int x) => null;
-List<Function> Function([core.List<core.int> x]) f10(int x) => null;
-core.List<core.int> Function(int y, [int x]) f11(int x) => null;
-core.List<core.int> Function(int x0, [List<Function> x1]) f12(int x) => null;
-core.List<core.int> Function(int x0, {List<int> x}) f13(int x) => null;
-List<int> Function(List<Function> x) f14(int x) => null;
-List<int> Function(int y, [List<int> x]) f15(int x) => null;
-Function([Function x0]) f16(int x) => null;
-Function({core.List<core.int> x}) f17(int x) => null;
-void Function(int y, {int x}) f18(int x) => null;
-void Function(int x0, [core.List<core.int> x]) f19(int x) => null;
-int Function<A>(List<int> x) f20(int x) => null;
-core.List<core.int> Function<A>() f21(int x) => null;
-A Function<A>(A x) f22(int x) => null;
-B Function() f23<B extends core.int>(int x) => null;
-
-class U49<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function([List<T> x1]) x0;
-  List<Function> Function(core.List<core.int> x0) x1;
-  List<T> Function(int y, [List<Function> x]) x2;
-  void Function(int x0, [Function x]) x3;
-  List<A> Function<A>(Function x) x4;
-  int Function(int y, {Function x}) Function(int x) x5;
-  int Function(int x1, [List<T> x]) Function(int x) x6;
-  Function Function(Function x1) Function(int x) x7;
-  Function Function(int x, [core.List<core.int> x1]) Function(int x) x8;
-  List<Function> Function(int x1, {int x}) Function(int x) x9;
-  List<Function> Function([core.List<core.int> x]) Function(int x) x10;
-  core.List<core.int> Function(int y, [int x]) Function(int x) x11;
-  core.List<core.int> Function(int x2, [List<Function> x3]) Function(int x) x12;
-  core.List<core.int> Function(int x1, {List<T> x}) Function(int x) x13;
-  List<T> Function(List<Function> x) Function(int x) x14;
-  List<T> Function(int y, [List<T> x]) Function(int x) x15;
-  Function([Function x1]) Function(int x) x16;
-  Function({core.List<core.int> x}) Function(int x) x17;
-  void Function(int y, {int x}) Function(int x) x18;
-  void Function(int x1, [core.List<core.int> x]) Function(int x) x19;
-  int Function<A>(List<T> x) Function(int x) x20;
-  core.List<core.int> Function<A>() Function(int x) x21;
-  A Function<A>(A x) Function(int x) x22;
-  B Function() Function<B extends core.int>(int x) x23;
-
-  U49({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0([List<T> x0]) => null;
-  List<Function> m1(core.List<core.int> x0) => null;
-  List<T> m2(int y, [List<Function> x]) => null;
-  void m3(int x0, [Function x]) => null;
-  List<A> m4<A>(Function x) => null;
-  int Function(int y, {Function x}) m5(int x) => null;
-  int Function(int x0, [List<T> x]) m6(int x) => null;
-  Function Function(Function x0) m7(int x) => null;
-  Function Function(int x, [core.List<core.int> x0]) m8(int x) => null;
-  List<Function> Function(int x0, {int x}) m9(int x) => null;
-  List<Function> Function([core.List<core.int> x]) m10(int x) => null;
-  core.List<core.int> Function(int y, [int x]) m11(int x) => null;
-  core.List<core.int> Function(int x0, [List<Function> x1]) m12(int x) => null;
-  core.List<core.int> Function(int x0, {List<T> x}) m13(int x) => null;
-  List<T> Function(List<Function> x) m14(int x) => null;
-  List<T> Function(int y, [List<T> x]) m15(int x) => null;
-  Function([Function x0]) m16(int x) => null;
-  Function({core.List<core.int> x}) m17(int x) => null;
-  void Function(int y, {int x}) m18(int x) => null;
-  void Function(int x0, [core.List<core.int> x]) m19(int x) => null;
-  int Function<A>(List<T> x) m20(int x) => null;
-  core.List<core.int> Function<A>() m21(int x) => null;
-  A Function<A>(A x) m22(int x) => null;
-  B Function() m23<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function([List<T> x1])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function([List<T> x1]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function([List<T> x1]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-    // The static function has its T always set to int.
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isFalse(f0 is F0<bool>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    Expect.isFalse(confuse(f0) is F0<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x0 = (f0 as dynamic);
-      });
-      Expect.throws(() {
-        x0 = confuse(f0);
-      });
-      Expect.throws(() {
-        l0 = (f0 as dynamic);
-      });
-      Expect.throws(() {
-        l0 = confuse(f0);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m0 is F0<int>);
-      Expect.equals(true, m0 is F0<bool>);
-      Expect.equals(true, confuse(m0) is F0<int>);
-      Expect.equals(true, confuse(m0) is F0<bool>);
-    }
-  }
-
-  /// List<Function> Function(core.List<core.int> x0)
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(core.List<core.int> x0) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(core.List<core.int> x0));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(int y, [List<Function> x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, [List<Function> x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int y, [List<Function> x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(int x0, [Function x])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int x0, [Function x]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int x0, [Function x]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// List<A> Function<A>(Function x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(Function x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is List<A> Function<A>(Function x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int y, {Function x}) Function(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, {Function x}) Function(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int y, {Function x}) Function(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x1, [List<T> x]) Function(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, [List<T> x]) Function(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int x1, [List<T> x]) Function(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(Function x1) Function(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(Function x1) Function(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(Function x1) Function(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x, [core.List<core.int> x1]) Function(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x, [core.List<core.int> x1]) Function(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x, [core.List<core.int> x1])
-        Function(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int x1, {int x}) Function(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, {int x}) Function(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(
-        m9 is List<Function> Function(int x1, {int x}) Function(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function([core.List<core.int> x]) Function(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([core.List<core.int> x]) Function(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function([core.List<core.int> x])
-        Function(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int y, [int x]) Function(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, [int x]) Function(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is core.List<core.int> Function(int y, [int x]) Function(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x2, [List<Function> x3]) Function(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x2, [List<Function> x3]) Function(int x)
-        l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x2,
-            [List<Function> x3])
-        Function(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int x1, {List<T> x}) Function(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, {List<T> x}) Function(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(int x1, {List<T> x})
-        Function(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(List<Function> x) Function(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(List<Function> x) Function(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(List<Function> x) Function(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, [List<T> x]) Function(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, [List<T> x]) Function(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int y, [List<T> x]) Function(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function([Function x1]) Function(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function([Function x1]) Function(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function([Function x1]) Function(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function({core.List<core.int> x}) Function(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function({core.List<core.int> x}) Function(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function({core.List<core.int> x}) Function(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int y, {int x}) Function(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, {int x}) Function(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int y, {int x}) Function(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x1, [core.List<core.int> x]) Function(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, [core.List<core.int> x]) Function(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(
-        m19 is void Function(int x1, [core.List<core.int> x]) Function(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(List<T> x) Function(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(List<T> x) Function(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is int Function<A>(List<T> x) Function(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function<A>() Function(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>() Function(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is core.List<core.int> Function<A>() Function(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(A x) Function(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(A x) Function(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is A Function<A>(A x) Function(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// B Function() Function<B extends core.int>(int x)
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    B Function() Function<B extends core.int>(int x) l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is B Function() Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U49().runTests();
-  new U49<int>(tIsInt: true).runTests();
-  new U49<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type4_test.dart b/tests/language_2/function_type/function_type4_test.dart
deleted file mode 100644
index 0d8bf38e5e4..00000000000
--- a/tests/language_2/function_type/function_type4_test.dart
+++ /dev/null
@@ -1,951 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int x0);
-typedef F1<T> = Function Function(List<T> x0);
-typedef F2<T> = core.List<core.int> Function(int y, [core.List<core.int> x]);
-typedef F3<T> = Function(int x0, [List<Function> x]);
-typedef F4<T> = Function Function<A>(List<T> x);
-typedef F5<T> = int Function(int y, {int x}) Function();
-typedef F6<T> = int Function(int x0, [core.List<core.int> x]) Function();
-typedef F7<T> = Function Function(int x0) Function();
-typedef F8<T> = Function Function(int x, [List<Function> x2]) Function();
-typedef F9<T> = Function Function(int y, {List<T> x}) Function();
-typedef F10<T> = List<Function> Function([List<Function> x]) Function();
-typedef F11<T> = List<Function> Function(List<T> x0) Function();
-typedef F12<T> = core.List<core.int> Function(int x1, [Function x2]) Function();
-typedef F13<T> = core.List<core.int> Function(int x0, {core.List<core.int> x})
-    Function();
-typedef F14<T> = List<T> Function(Function x) Function();
-typedef F15<T> = List<T> Function(int y, [core.List<core.int> x]) Function();
-typedef F16<T> = Function([int x1]) Function();
-typedef F17<T> = Function({List<Function> x}) Function();
-typedef F18<T> = Function() Function();
-typedef F19<T> = void Function(int x0, [List<Function> x]) Function();
-typedef F20<T> = void Function([List<T> x1]) Function();
-typedef F21<T> = List<Function> Function<A>(List<Function> x) Function();
-typedef F22<T> = Function<A>(core.List<core.int> x) Function();
-typedef F23<T> = void Function<A>(List<T> x) Function();
-
-int f0(int x0) => null;
-Function f1(List<int> x0) => null;
-core.List<core.int> f2(int y, [core.List<core.int> x]) => null;
-f3(int x0, [List<Function> x]) => null;
-Function f4<A>(List<int> x) => null;
-int Function(int y, {int x}) f5() => null;
-int Function(int x0, [core.List<core.int> x]) f6() => null;
-Function Function(int x0) f7() => null;
-Function Function(int x, [List<Function> x0]) f8() => null;
-Function Function(int y, {List<int> x}) f9() => null;
-List<Function> Function([List<Function> x]) f10() => null;
-List<Function> Function(List<int> x0) f11() => null;
-core.List<core.int> Function(int x0, [Function x1]) f12() => null;
-core.List<core.int> Function(int x0, {core.List<core.int> x}) f13() => null;
-List<int> Function(Function x) f14() => null;
-List<int> Function(int y, [core.List<core.int> x]) f15() => null;
-Function([int x0]) f16() => null;
-Function({List<Function> x}) f17() => null;
-Function() f18() => null;
-void Function(int x0, [List<Function> x]) f19() => null;
-void Function([List<int> x0]) f20() => null;
-List<Function> Function<A>(List<Function> x) f21() => null;
-Function<A>(core.List<core.int> x) f22() => null;
-void Function<A>(List<int> x) f23() => null;
-
-class U4<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int x0) x0;
-  Function Function(List<T> x0) x1;
-  core.List<core.int> Function(int y, [core.List<core.int> x]) x2;
-  Function(int x0, [List<Function> x]) x3;
-  Function Function<A>(List<T> x) x4;
-  int Function(int y, {int x}) Function() x5;
-  int Function(int x0, [core.List<core.int> x]) Function() x6;
-  Function Function(int x0) Function() x7;
-  Function Function(int x, [List<Function> x2]) Function() x8;
-  Function Function(int y, {List<T> x}) Function() x9;
-  List<Function> Function([List<Function> x]) Function() x10;
-  List<Function> Function(List<T> x0) Function() x11;
-  core.List<core.int> Function(int x1, [Function x2]) Function() x12;
-  core.List<core.int> Function(int x0, {core.List<core.int> x}) Function() x13;
-  List<T> Function(Function x) Function() x14;
-  List<T> Function(int y, [core.List<core.int> x]) Function() x15;
-  Function([int x1]) Function() x16;
-  Function({List<Function> x}) Function() x17;
-  Function() Function() x18;
-  void Function(int x0, [List<Function> x]) Function() x19;
-  void Function([List<T> x1]) Function() x20;
-  List<Function> Function<A>(List<Function> x) Function() x21;
-  Function<A>(core.List<core.int> x) Function() x22;
-  void Function<A>(List<T> x) Function() x23;
-
-  U4({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int x0) => null;
-  Function m1(List<T> x0) => null;
-  core.List<core.int> m2(int y, [core.List<core.int> x]) => null;
-  m3(int x0, [List<Function> x]) => null;
-  Function m4<A>(List<T> x) => null;
-  int Function(int y, {int x}) m5() => null;
-  int Function(int x0, [core.List<core.int> x]) m6() => null;
-  Function Function(int x0) m7() => null;
-  Function Function(int x, [List<Function> x0]) m8() => null;
-  Function Function(int y, {List<T> x}) m9() => null;
-  List<Function> Function([List<Function> x]) m10() => null;
-  List<Function> Function(List<T> x0) m11() => null;
-  core.List<core.int> Function(int x0, [Function x1]) m12() => null;
-  core.List<core.int> Function(int x0, {core.List<core.int> x}) m13() => null;
-  List<T> Function(Function x) m14() => null;
-  List<T> Function(int y, [core.List<core.int> x]) m15() => null;
-  Function([int x0]) m16() => null;
-  Function({List<Function> x}) m17() => null;
-  Function() m18() => null;
-  void Function(int x0, [List<Function> x]) m19() => null;
-  void Function([List<T> x0]) m20() => null;
-  List<Function> Function<A>(List<Function> x) m21() => null;
-  Function<A>(core.List<core.int> x) m22() => null;
-  void Function<A>(List<T> x) m23() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int x0)
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int x0) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int x0));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// Function Function(List<T> x0)
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    Function Function(List<T> x0) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is Function Function(List<T> x0));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-    // The static function has its T always set to int.
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isFalse(f1 is F1<bool>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    Expect.isFalse(confuse(f1) is F1<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        x1 = confuse(f1);
-      });
-      Expect.throws(() {
-        l1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        l1 = confuse(f1);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m1 is F1<int>);
-      Expect.equals(true, m1 is F1<bool>);
-      Expect.equals(true, confuse(m1) is F1<int>);
-      Expect.equals(true, confuse(m1) is F1<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int y, [core.List<core.int> x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, [core.List<core.int> x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(
-        m2 is core.List<core.int> Function(int y, [core.List<core.int> x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// Function(int x0, [List<Function> x])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function(int x0, [List<Function> x]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function(int x0, [List<Function> x]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// Function Function<A>(List<T> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(List<T> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is Function Function<A>(List<T> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-    // The static function has its T always set to int.
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isFalse(f4 is F4<bool>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    Expect.isFalse(confuse(f4) is F4<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        x4 = confuse(f4);
-      });
-      Expect.throws(() {
-        l4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        l4 = confuse(f4);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m4 is F4<int>);
-      Expect.equals(true, m4 is F4<bool>);
-      Expect.equals(true, confuse(m4) is F4<int>);
-      Expect.equals(true, confuse(m4) is F4<bool>);
-    }
-  }
-
-  /// int Function(int y, {int x}) Function()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, {int x}) Function() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int y, {int x}) Function());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x0, [core.List<core.int> x]) Function()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x0, [core.List<core.int> x]) Function() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is int Function(int x0, [core.List<core.int> x]) Function());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int x0) Function()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x0) Function() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x0) Function());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x, [List<Function> x2]) Function()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x, [List<Function> x2]) Function() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(
-        m8 is Function Function(int x, [List<Function> x2]) Function());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// Function Function(int y, {List<T> x}) Function()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, {List<T> x}) Function() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is Function Function(int y, {List<T> x}) Function());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-    // The static function has its T always set to int.
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isFalse(f9 is F9<bool>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    Expect.isFalse(confuse(f9) is F9<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x9 = (f9 as dynamic);
-      });
-      Expect.throws(() {
-        x9 = confuse(f9);
-      });
-      Expect.throws(() {
-        l9 = (f9 as dynamic);
-      });
-      Expect.throws(() {
-        l9 = confuse(f9);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m9 is F9<int>);
-      Expect.equals(tIsBool, m9 is F9<bool>);
-      Expect.equals(tIsInt, confuse(m9) is F9<int>);
-      Expect.equals(tIsBool, confuse(m9) is F9<bool>);
-    }
-  }
-
-  /// List<Function> Function([List<Function> x]) Function()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([List<Function> x]) Function() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(
-        m10 is List<Function> Function([List<Function> x]) Function());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function(List<T> x0) Function()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(List<T> x0) Function() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is List<Function> Function(List<T> x0) Function());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int x1, [Function x2]) Function()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, [Function x2]) Function() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(
-        m12 is core.List<core.int> Function(int x1, [Function x2]) Function());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int x0, {core.List<core.int> x}) Function()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x0, {core.List<core.int> x}) Function()
-        l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(int x0,
-            {core.List<core.int> x})
-        Function());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-  }
-
-  /// List<T> Function(Function x) Function()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(Function x) Function() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(Function x) Function());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, [core.List<core.int> x]) Function()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, [core.List<core.int> x]) Function() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(
-        m15 is List<T> Function(int y, [core.List<core.int> x]) Function());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function([int x1]) Function()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function([int x1]) Function() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function([int x1]) Function());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function({List<Function> x}) Function()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function({List<Function> x}) Function() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function({List<Function> x}) Function());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// Function() Function()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    Function() Function() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is Function() Function());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x0, [List<Function> x]) Function()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x0, [List<Function> x]) Function() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int x0, [List<Function> x]) Function());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function([List<T> x1]) Function()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function([List<T> x1]) Function() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is void Function([List<T> x1]) Function());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(List<Function> x) Function()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(List<Function> x) Function() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(
-        m21 is List<Function> Function<A>(List<Function> x) Function());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// Function<A>(core.List<core.int> x) Function()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    Function<A>(core.List<core.int> x) Function() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is Function<A>(core.List<core.int> x) Function());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// void Function<A>(List<T> x) Function()
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(List<T> x) Function() l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is void Function<A>(List<T> x) Function());
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-    // The static function has its T always set to int.
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isFalse(f23 is F23<bool>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    Expect.isFalse(confuse(f23) is F23<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x23 = (f23 as dynamic);
-      });
-      Expect.throws(() {
-        x23 = confuse(f23);
-      });
-      Expect.throws(() {
-        l23 = (f23 as dynamic);
-      });
-      Expect.throws(() {
-        l23 = confuse(f23);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m23 is F23<int>);
-      Expect.equals(tIsBool, m23 is F23<bool>);
-      Expect.equals(tIsInt, confuse(m23) is F23<int>);
-      Expect.equals(tIsBool, confuse(m23) is F23<bool>);
-    }
-  }
-}
-
-void main() {
-  new U4().runTests();
-  new U4<int>(tIsInt: true).runTests();
-  new U4<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type50_test.dart b/tests/language_2/function_type/function_type50_test.dart
deleted file mode 100644
index 43fd72e7634..00000000000
--- a/tests/language_2/function_type/function_type50_test.dart
+++ /dev/null
@@ -1,940 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int x1, [List<T> x2]);
-typedef F1<T> = List<Function> Function([core.List<core.int> x1]);
-typedef F2<T> = List<T> Function(List<Function> x0);
-typedef F3<T> = void Function(int y, [Function x]);
-typedef F4<T> = List<A> Function<A>(List<Function> x);
-typedef F5<T> = int Function(int y, {Function x})
-    Function<B extends core.int>();
-typedef F6<T> = int Function(int x1, [List<T> x])
-    Function<B extends core.int>();
-typedef F7<T> = Function Function(Function x1) Function<B extends core.int>();
-typedef F8<T> = Function Function(int x, [core.List<core.int> x1])
-    Function<B extends core.int>();
-typedef F9<T> = List<Function> Function(int x1, {int x})
-    Function<B extends core.int>();
-typedef F10<T> = List<Function> Function([core.List<core.int> x])
-    Function<B extends core.int>();
-typedef F11<T> = core.List<core.int> Function(int y, [int x])
-    Function<B extends core.int>();
-typedef F12<T> = core.List<core.int> Function(int x2, [List<Function> x3])
-    Function<B extends core.int>();
-typedef F13<T> = core.List<core.int> Function(int x1, {List<T> x})
-    Function<B extends core.int>();
-typedef F14<T> = List<T> Function(List<Function> x)
-    Function<B extends core.int>();
-typedef F15<T> = List<T> Function(int y, [List<T> x])
-    Function<B extends core.int>();
-typedef F16<T> = Function([Function x1]) Function<B extends core.int>();
-typedef F17<T> = Function({core.List<core.int> x})
-    Function<B extends core.int>();
-typedef F18<T> = void Function(int y, {int x}) Function<B extends core.int>();
-typedef F19<T> = void Function(int x1, [core.List<core.int> x])
-    Function<B extends core.int>();
-typedef F20<T> = int Function<A>(List<T> x) Function<B extends core.int>();
-typedef F21<T> = core.List<core.int> Function<A>()
-    Function<B extends core.int>();
-typedef F22<T> = A Function<A>(A x) Function<B extends core.int>();
-
-int f0(int x0, [List<int> x1]) => null;
-List<Function> f1([core.List<core.int> x0]) => null;
-List<int> f2(List<Function> x0) => null;
-void f3(int y, [Function x]) => null;
-List<A> f4<A>(List<Function> x) => null;
-int Function(int y, {Function x}) f5<B extends core.int>() => null;
-int Function(int x0, [List<int> x]) f6<B extends core.int>() => null;
-Function Function(Function x0) f7<B extends core.int>() => null;
-Function Function(int x, [core.List<core.int> x0]) f8<B extends core.int>() =>
-    null;
-List<Function> Function(int x0, {int x}) f9<B extends core.int>() => null;
-List<Function> Function([core.List<core.int> x]) f10<B extends core.int>() =>
-    null;
-core.List<core.int> Function(int y, [int x]) f11<B extends core.int>() => null;
-core.List<core.int> Function(int x0, [List<Function> x1])
-    f12<B extends core.int>() => null;
-core.List<core.int> Function(int x0, {List<int> x}) f13<B extends core.int>() =>
-    null;
-List<int> Function(List<Function> x) f14<B extends core.int>() => null;
-List<int> Function(int y, [List<int> x]) f15<B extends core.int>() => null;
-Function([Function x0]) f16<B extends core.int>() => null;
-Function({core.List<core.int> x}) f17<B extends core.int>() => null;
-void Function(int y, {int x}) f18<B extends core.int>() => null;
-void Function(int x0, [core.List<core.int> x]) f19<B extends core.int>() =>
-    null;
-int Function<A>(List<int> x) f20<B extends core.int>() => null;
-core.List<core.int> Function<A>() f21<B extends core.int>() => null;
-A Function<A>(A x) f22<B extends core.int>() => null;
-
-class U50<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int x1, [List<T> x2]) x0;
-  List<Function> Function([core.List<core.int> x1]) x1;
-  List<T> Function(List<Function> x0) x2;
-  void Function(int y, [Function x]) x3;
-  List<A> Function<A>(List<Function> x) x4;
-  int Function(int y, {Function x}) Function<B extends core.int>() x5;
-  int Function(int x1, [List<T> x]) Function<B extends core.int>() x6;
-  Function Function(Function x1) Function<B extends core.int>() x7;
-  Function Function(int x, [core.List<core.int> x1])
-      Function<B extends core.int>() x8;
-  List<Function> Function(int x1, {int x}) Function<B extends core.int>() x9;
-  List<Function> Function([core.List<core.int> x])
-      Function<B extends core.int>() x10;
-  core.List<core.int> Function(int y, [int x]) Function<B extends core.int>()
-      x11;
-  core.List<core.int> Function(int x2, [List<Function> x3])
-      Function<B extends core.int>() x12;
-  core.List<core.int> Function(int x1, {List<T> x})
-      Function<B extends core.int>() x13;
-  List<T> Function(List<Function> x) Function<B extends core.int>() x14;
-  List<T> Function(int y, [List<T> x]) Function<B extends core.int>() x15;
-  Function([Function x1]) Function<B extends core.int>() x16;
-  Function({core.List<core.int> x}) Function<B extends core.int>() x17;
-  void Function(int y, {int x}) Function<B extends core.int>() x18;
-  void Function(int x1, [core.List<core.int> x]) Function<B extends core.int>()
-      x19;
-  int Function<A>(List<T> x) Function<B extends core.int>() x20;
-  core.List<core.int> Function<A>() Function<B extends core.int>() x21;
-  A Function<A>(A x) Function<B extends core.int>() x22;
-
-  U50({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int x0, [List<T> x1]) => null;
-  List<Function> m1([core.List<core.int> x0]) => null;
-  List<T> m2(List<Function> x0) => null;
-  void m3(int y, [Function x]) => null;
-  List<A> m4<A>(List<Function> x) => null;
-  int Function(int y, {Function x}) m5<B extends core.int>() => null;
-  int Function(int x0, [List<T> x]) m6<B extends core.int>() => null;
-  Function Function(Function x0) m7<B extends core.int>() => null;
-  Function Function(int x, [core.List<core.int> x0]) m8<B extends core.int>() =>
-      null;
-  List<Function> Function(int x0, {int x}) m9<B extends core.int>() => null;
-  List<Function> Function([core.List<core.int> x]) m10<B extends core.int>() =>
-      null;
-  core.List<core.int> Function(int y, [int x]) m11<B extends core.int>() =>
-      null;
-  core.List<core.int> Function(int x0, [List<Function> x1])
-      m12<B extends core.int>() => null;
-  core.List<core.int> Function(int x0, {List<T> x}) m13<B extends core.int>() =>
-      null;
-  List<T> Function(List<Function> x) m14<B extends core.int>() => null;
-  List<T> Function(int y, [List<T> x]) m15<B extends core.int>() => null;
-  Function([Function x0]) m16<B extends core.int>() => null;
-  Function({core.List<core.int> x}) m17<B extends core.int>() => null;
-  void Function(int y, {int x}) m18<B extends core.int>() => null;
-  void Function(int x0, [core.List<core.int> x]) m19<B extends core.int>() =>
-      null;
-  int Function<A>(List<T> x) m20<B extends core.int>() => null;
-  core.List<core.int> Function<A>() m21<B extends core.int>() => null;
-  A Function<A>(A x) m22<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// int Function(int x1, [List<T> x2])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, [List<T> x2]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int x1, [List<T> x2]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-    // The static function has its T always set to int.
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isFalse(f0 is F0<bool>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    Expect.isFalse(confuse(f0) is F0<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x0 = (f0 as dynamic);
-      });
-      Expect.throws(() {
-        x0 = confuse(f0);
-      });
-      Expect.throws(() {
-        l0 = (f0 as dynamic);
-      });
-      Expect.throws(() {
-        l0 = confuse(f0);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m0 is F0<int>);
-      Expect.equals(true, m0 is F0<bool>);
-      Expect.equals(true, confuse(m0) is F0<int>);
-      Expect.equals(true, confuse(m0) is F0<bool>);
-    }
-  }
-
-  /// List<Function> Function([core.List<core.int> x1])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([core.List<core.int> x1]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function([core.List<core.int> x1]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(List<Function> x0)
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(List<Function> x0) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(List<Function> x0));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(int y, [Function x])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, [Function x]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int y, [Function x]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// List<A> Function<A>(List<Function> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(List<Function> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is List<A> Function<A>(List<Function> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int y, {Function x}) Function<B extends core.int>()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, {Function x}) Function<B extends core.int>() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(
-        m5 is int Function(int y, {Function x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x1, [List<T> x]) Function<B extends core.int>()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, [List<T> x]) Function<B extends core.int>() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is int Function(int x1, [List<T> x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(Function x1) Function<B extends core.int>()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(Function x1) Function<B extends core.int>() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(
-        m7 is Function Function(Function x1) Function<B extends core.int>());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x, [core.List<core.int> x1]) Function<B extends core.int>()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x, [core.List<core.int> x1])
-        Function<B extends core.int>() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x, [core.List<core.int> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int x1, {int x}) Function<B extends core.int>()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, {int x}) Function<B extends core.int>() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int x1, {int x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function([core.List<core.int> x]) Function<B extends core.int>()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([core.List<core.int> x])
-        Function<B extends core.int>() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function([core.List<core.int> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int y, [int x]) Function<B extends core.int>()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, [int x]) Function<B extends core.int>()
-        l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(int y, [int x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x2, [List<Function> x3]) Function<B extends core.int>()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x2, [List<Function> x3])
-        Function<B extends core.int>() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x2,
-            [List<Function> x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int x1, {List<T> x}) Function<B extends core.int>()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, {List<T> x})
-        Function<B extends core.int>() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(int x1, {List<T> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(List<Function> x) Function<B extends core.int>()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(List<Function> x) Function<B extends core.int>() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(List<Function> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, [List<T> x]) Function<B extends core.int>()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, [List<T> x]) Function<B extends core.int>() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int y, [List<T> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function([Function x1]) Function<B extends core.int>()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function([Function x1]) Function<B extends core.int>() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function([Function x1]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function({core.List<core.int> x}) Function<B extends core.int>()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function({core.List<core.int> x}) Function<B extends core.int>() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function({core.List<core.int> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int y, {int x}) Function<B extends core.int>()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, {int x}) Function<B extends core.int>() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(
-        m18 is void Function(int y, {int x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x1, [core.List<core.int> x]) Function<B extends core.int>()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, [core.List<core.int> x])
-        Function<B extends core.int>() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int x1, [core.List<core.int> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(List<T> x) Function<B extends core.int>()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(List<T> x) Function<B extends core.int>() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(
-        m20 is int Function<A>(List<T> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function<A>() Function<B extends core.int>()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>() Function<B extends core.int>() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is core.List<core.int> Function<A>()
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(A x) Function<B extends core.int>()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(A x) Function<B extends core.int>() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is A Function<A>(A x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U50().runTests();
-  new U50<int>(tIsInt: true).runTests();
-  new U50<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type51_test.dart b/tests/language_2/function_type/function_type51_test.dart
deleted file mode 100644
index a466411f54a..00000000000
--- a/tests/language_2/function_type/function_type51_test.dart
+++ /dev/null
@@ -1,956 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int x, [List<T> x2]);
-typedef F1<T> = List<Function> Function(int x1, [core.List<core.int> x2]);
-typedef F2<T> = List<T> Function([List<Function> x1]);
-typedef F3<T> = void Function(Function x0);
-typedef F4<T> = List<A> Function<A>(core.List<core.int> x);
-typedef F5<T> = int Function(int y, {Function x}) Function<B extends core.int>(
-    int x);
-typedef F6<T> = int Function(int x1, [List<T> x]) Function<B extends core.int>(
-    int x);
-typedef F7<T> = Function Function(Function x1) Function<B extends core.int>(
-    int x);
-typedef F8<T> = Function Function(int x, [core.List<core.int> x1])
-    Function<B extends core.int>(int x);
-typedef F9<T> = List<Function> Function(int x1, {int x})
-    Function<B extends core.int>(int x);
-typedef F10<T> = List<Function> Function([core.List<core.int> x])
-    Function<B extends core.int>(int x);
-typedef F11<T> = core.List<core.int> Function(int y, [int x])
-    Function<B extends core.int>(int x);
-typedef F12<T> = core.List<core.int> Function(int x2, [List<Function> x3])
-    Function<B extends core.int>(int x);
-typedef F13<T> = core.List<core.int> Function(int x1, {List<T> x})
-    Function<B extends core.int>(int x);
-typedef F14<T> = List<T> Function(List<Function> x)
-    Function<B extends core.int>(int x);
-typedef F15<T> = List<T> Function(int y, [List<T> x])
-    Function<B extends core.int>(int x);
-typedef F16<T> = Function([Function x1]) Function<B extends core.int>(int x);
-typedef F17<T> = Function({core.List<core.int> x}) Function<B extends core.int>(
-    int x);
-typedef F18<T> = void Function(int y, {int x}) Function<B extends core.int>(
-    int x);
-typedef F19<T> = void Function(int x1, [core.List<core.int> x])
-    Function<B extends core.int>(int x);
-typedef F20<T> = int Function<A>(List<T> x) Function<B extends core.int>(int x);
-typedef F21<T> = core.List<core.int> Function<A>() Function<B extends core.int>(
-    int x);
-typedef F22<T> = A Function<A>(A x) Function<B extends core.int>(int x);
-
-int f0(int x, [List<int> x0]) => null;
-List<Function> f1(int x0, [core.List<core.int> x1]) => null;
-List<int> f2([List<Function> x0]) => null;
-void f3(Function x0) => null;
-List<A> f4<A>(core.List<core.int> x) => null;
-int Function(int y, {Function x}) f5<B extends core.int>(int x) => null;
-int Function(int x0, [List<int> x]) f6<B extends core.int>(int x) => null;
-Function Function(Function x0) f7<B extends core.int>(int x) => null;
-Function Function(int x, [core.List<core.int> x0]) f8<B extends core.int>(
-        int x) =>
-    null;
-List<Function> Function(int x0, {int x}) f9<B extends core.int>(int x) => null;
-List<Function> Function([core.List<core.int> x]) f10<B extends core.int>(
-        int x) =>
-    null;
-core.List<core.int> Function(int y, [int x]) f11<B extends core.int>(int x) =>
-    null;
-core.List<core.int> Function(int x0, [List<Function> x1])
-    f12<B extends core.int>(int x) => null;
-core.List<core.int> Function(int x0, {List<int> x}) f13<B extends core.int>(
-        int x) =>
-    null;
-List<int> Function(List<Function> x) f14<B extends core.int>(int x) => null;
-List<int> Function(int y, [List<int> x]) f15<B extends core.int>(int x) => null;
-Function([Function x0]) f16<B extends core.int>(int x) => null;
-Function({core.List<core.int> x}) f17<B extends core.int>(int x) => null;
-void Function(int y, {int x}) f18<B extends core.int>(int x) => null;
-void Function(int x0, [core.List<core.int> x]) f19<B extends core.int>(int x) =>
-    null;
-int Function<A>(List<int> x) f20<B extends core.int>(int x) => null;
-core.List<core.int> Function<A>() f21<B extends core.int>(int x) => null;
-A Function<A>(A x) f22<B extends core.int>(int x) => null;
-
-class U51<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int x, [List<T> x2]) x0;
-  List<Function> Function(int x1, [core.List<core.int> x2]) x1;
-  List<T> Function([List<Function> x1]) x2;
-  void Function(Function x0) x3;
-  List<A> Function<A>(core.List<core.int> x) x4;
-  int Function(int y, {Function x}) Function<B extends core.int>(int x) x5;
-  int Function(int x1, [List<T> x]) Function<B extends core.int>(int x) x6;
-  Function Function(Function x1) Function<B extends core.int>(int x) x7;
-  Function Function(int x, [core.List<core.int> x1])
-      Function<B extends core.int>(int x) x8;
-  List<Function> Function(int x1, {int x}) Function<B extends core.int>(int x)
-      x9;
-  List<Function> Function([core.List<core.int> x]) Function<B extends core.int>(
-      int x) x10;
-  core.List<core.int> Function(int y, [int x]) Function<B extends core.int>(
-      int x) x11;
-  core.List<core.int> Function(int x2, [List<Function> x3])
-      Function<B extends core.int>(int x) x12;
-  core.List<core.int> Function(int x1, {List<T> x})
-      Function<B extends core.int>(int x) x13;
-  List<T> Function(List<Function> x) Function<B extends core.int>(int x) x14;
-  List<T> Function(int y, [List<T> x]) Function<B extends core.int>(int x) x15;
-  Function([Function x1]) Function<B extends core.int>(int x) x16;
-  Function({core.List<core.int> x}) Function<B extends core.int>(int x) x17;
-  void Function(int y, {int x}) Function<B extends core.int>(int x) x18;
-  void Function(int x1, [core.List<core.int> x]) Function<B extends core.int>(
-      int x) x19;
-  int Function<A>(List<T> x) Function<B extends core.int>(int x) x20;
-  core.List<core.int> Function<A>() Function<B extends core.int>(int x) x21;
-  A Function<A>(A x) Function<B extends core.int>(int x) x22;
-
-  U51({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int x, [List<T> x0]) => null;
-  List<Function> m1(int x0, [core.List<core.int> x1]) => null;
-  List<T> m2([List<Function> x0]) => null;
-  void m3(Function x0) => null;
-  List<A> m4<A>(core.List<core.int> x) => null;
-  int Function(int y, {Function x}) m5<B extends core.int>(int x) => null;
-  int Function(int x0, [List<T> x]) m6<B extends core.int>(int x) => null;
-  Function Function(Function x0) m7<B extends core.int>(int x) => null;
-  Function Function(int x, [core.List<core.int> x0]) m8<B extends core.int>(
-          int x) =>
-      null;
-  List<Function> Function(int x0, {int x}) m9<B extends core.int>(int x) =>
-      null;
-  List<Function> Function([core.List<core.int> x]) m10<B extends core.int>(
-          int x) =>
-      null;
-  core.List<core.int> Function(int y, [int x]) m11<B extends core.int>(int x) =>
-      null;
-  core.List<core.int> Function(int x0, [List<Function> x1])
-      m12<B extends core.int>(int x) => null;
-  core.List<core.int> Function(int x0, {List<T> x}) m13<B extends core.int>(
-          int x) =>
-      null;
-  List<T> Function(List<Function> x) m14<B extends core.int>(int x) => null;
-  List<T> Function(int y, [List<T> x]) m15<B extends core.int>(int x) => null;
-  Function([Function x0]) m16<B extends core.int>(int x) => null;
-  Function({core.List<core.int> x}) m17<B extends core.int>(int x) => null;
-  void Function(int y, {int x}) m18<B extends core.int>(int x) => null;
-  void Function(int x0, [core.List<core.int> x]) m19<B extends core.int>(
-          int x) =>
-      null;
-  int Function<A>(List<T> x) m20<B extends core.int>(int x) => null;
-  core.List<core.int> Function<A>() m21<B extends core.int>(int x) => null;
-  A Function<A>(A x) m22<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// int Function(int x, [List<T> x2])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int x, [List<T> x2]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int x, [List<T> x2]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-    // The static function has its T always set to int.
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isFalse(f0 is F0<bool>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    Expect.isFalse(confuse(f0) is F0<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x0 = (f0 as dynamic);
-      });
-      Expect.throws(() {
-        x0 = confuse(f0);
-      });
-      Expect.throws(() {
-        l0 = (f0 as dynamic);
-      });
-      Expect.throws(() {
-        l0 = confuse(f0);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m0 is F0<int>);
-      Expect.equals(true, m0 is F0<bool>);
-      Expect.equals(true, confuse(m0) is F0<int>);
-      Expect.equals(true, confuse(m0) is F0<bool>);
-    }
-  }
-
-  /// List<Function> Function(int x1, [core.List<core.int> x2])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, [core.List<core.int> x2]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(
-        m1 is List<Function> Function(int x1, [core.List<core.int> x2]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function([List<Function> x1])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([List<Function> x1]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function([List<Function> x1]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(Function x0)
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(Function x0) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(Function x0));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// List<A> Function<A>(core.List<core.int> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(core.List<core.int> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is List<A> Function<A>(core.List<core.int> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int y, {Function x}) Function<B extends core.int>(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, {Function x}) Function<B extends core.int>(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int y, {Function x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x1, [List<T> x]) Function<B extends core.int>(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, [List<T> x]) Function<B extends core.int>(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int x1, [List<T> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(Function x1) Function<B extends core.int>(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(Function x1) Function<B extends core.int>(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(Function x1)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x, [core.List<core.int> x1]) Function<B extends core.int>(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x, [core.List<core.int> x1])
-        Function<B extends core.int>(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x, [core.List<core.int> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int x1, {int x}) Function<B extends core.int>(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, {int x}) Function<B extends core.int>(int x)
-        l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int x1, {int x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function([core.List<core.int> x]) Function<B extends core.int>(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([core.List<core.int> x])
-        Function<B extends core.int>(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function([core.List<core.int> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int y, [int x]) Function<B extends core.int>(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, [int x]) Function<B extends core.int>(
-        int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(int y, [int x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x2, [List<Function> x3]) Function<B extends core.int>(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x2, [List<Function> x3])
-        Function<B extends core.int>(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x2,
-            [List<Function> x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int x1, {List<T> x}) Function<B extends core.int>(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, {List<T> x})
-        Function<B extends core.int>(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(int x1, {List<T> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(List<Function> x) Function<B extends core.int>(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(List<Function> x) Function<B extends core.int>(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(List<Function> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, [List<T> x]) Function<B extends core.int>(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, [List<T> x]) Function<B extends core.int>(int x)
-        l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int y, [List<T> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function([Function x1]) Function<B extends core.int>(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function([Function x1]) Function<B extends core.int>(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function([Function x1]) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function({core.List<core.int> x}) Function<B extends core.int>(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function({core.List<core.int> x}) Function<B extends core.int>(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function({core.List<core.int> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int y, {int x}) Function<B extends core.int>(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, {int x}) Function<B extends core.int>(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int y, {int x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x1, [core.List<core.int> x]) Function<B extends core.int>(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, [core.List<core.int> x]) Function<B extends core.int>(
-        int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int x1, [core.List<core.int> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(List<T> x) Function<B extends core.int>(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(List<T> x) Function<B extends core.int>(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(
-        m20 is int Function<A>(List<T> x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function<A>() Function<B extends core.int>(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>() Function<B extends core.int>(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is core.List<core.int> Function<A>()
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(A x) Function<B extends core.int>(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(A x) Function<B extends core.int>(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(
-        m22 is A Function<A>(A x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U51().runTests();
-  new U51<int>(tIsInt: true).runTests();
-  new U51<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type52_test.dart b/tests/language_2/function_type/function_type52_test.dart
deleted file mode 100644
index 1cd849bd5a3..00000000000
--- a/tests/language_2/function_type/function_type52_test.dart
+++ /dev/null
@@ -1,893 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function({List<T> x});
-typedef F1<T> = List<Function> Function(int x, [core.List<core.int> x2]);
-typedef F2<T> = List<T> Function(int x1, [List<Function> x2]);
-typedef F3<T> = void Function([Function x1]);
-typedef F4<T> = List<A> Function<A>(List<T> x);
-typedef F5<T> = int Function(List<Function> x) Function();
-typedef F6<T> = int Function(int y, [List<T> x]) Function();
-typedef F7<T> = Function Function([Function x1]) Function();
-typedef F8<T> = Function Function({core.List<core.int> x}) Function();
-typedef F9<T> = List<Function> Function(int y, {int x}) Function();
-typedef F10<T> = List<Function> Function(int x0, [core.List<core.int> x])
-    Function();
-typedef F11<T> = core.List<core.int> Function(int x0) Function();
-typedef F12<T> = core.List<core.int> Function(int x, [List<Function> x2])
-    Function();
-typedef F13<T> = core.List<core.int> Function(int y, {List<T> x}) Function();
-typedef F14<T> = List<T> Function([List<Function> x]) Function();
-typedef F15<T> = List<T> Function(List<T> x0) Function();
-typedef F16<T> = Function(int x1, [Function x2]) Function();
-typedef F17<T> = Function(int x0, {core.List<core.int> x}) Function();
-typedef F18<T> = void Function(Function x) Function();
-typedef F19<T> = void Function(int y, [core.List<core.int> x]) Function();
-typedef F20<T> = int Function<A>() Function();
-typedef F21<T> = core.List<core.int> Function<A>(A x) Function();
-typedef F22<T> = A Function<A>(List<A> x) Function();
-
-int f0({List<int> x}) => null;
-List<Function> f1(int x, [core.List<core.int> x0]) => null;
-List<int> f2(int x0, [List<Function> x1]) => null;
-void f3([Function x0]) => null;
-List<A> f4<A>(List<int> x) => null;
-int Function(List<Function> x) f5() => null;
-int Function(int y, [List<int> x]) f6() => null;
-Function Function([Function x0]) f7() => null;
-Function Function({core.List<core.int> x}) f8() => null;
-List<Function> Function(int y, {int x}) f9() => null;
-List<Function> Function(int x0, [core.List<core.int> x]) f10() => null;
-core.List<core.int> Function(int x0) f11() => null;
-core.List<core.int> Function(int x, [List<Function> x0]) f12() => null;
-core.List<core.int> Function(int y, {List<int> x}) f13() => null;
-List<int> Function([List<Function> x]) f14() => null;
-List<int> Function(List<int> x0) f15() => null;
-Function(int x0, [Function x1]) f16() => null;
-Function(int x0, {core.List<core.int> x}) f17() => null;
-void Function(Function x) f18() => null;
-void Function(int y, [core.List<core.int> x]) f19() => null;
-int Function<A>() f20() => null;
-core.List<core.int> Function<A>(A x) f21() => null;
-A Function<A>(List<A> x) f22() => null;
-
-class U52<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function({List<T> x}) x0;
-  List<Function> Function(int x, [core.List<core.int> x2]) x1;
-  List<T> Function(int x1, [List<Function> x2]) x2;
-  void Function([Function x1]) x3;
-  List<A> Function<A>(List<T> x) x4;
-  int Function(List<Function> x) Function() x5;
-  int Function(int y, [List<T> x]) Function() x6;
-  Function Function([Function x1]) Function() x7;
-  Function Function({core.List<core.int> x}) Function() x8;
-  List<Function> Function(int y, {int x}) Function() x9;
-  List<Function> Function(int x0, [core.List<core.int> x]) Function() x10;
-  core.List<core.int> Function(int x0) Function() x11;
-  core.List<core.int> Function(int x, [List<Function> x2]) Function() x12;
-  core.List<core.int> Function(int y, {List<T> x}) Function() x13;
-  List<T> Function([List<Function> x]) Function() x14;
-  List<T> Function(List<T> x0) Function() x15;
-  Function(int x1, [Function x2]) Function() x16;
-  Function(int x0, {core.List<core.int> x}) Function() x17;
-  void Function(Function x) Function() x18;
-  void Function(int y, [core.List<core.int> x]) Function() x19;
-  int Function<A>() Function() x20;
-  core.List<core.int> Function<A>(A x) Function() x21;
-  A Function<A>(List<A> x) Function() x22;
-
-  U52({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0({List<T> x}) => null;
-  List<Function> m1(int x, [core.List<core.int> x0]) => null;
-  List<T> m2(int x0, [List<Function> x1]) => null;
-  void m3([Function x0]) => null;
-  List<A> m4<A>(List<T> x) => null;
-  int Function(List<Function> x) m5() => null;
-  int Function(int y, [List<T> x]) m6() => null;
-  Function Function([Function x0]) m7() => null;
-  Function Function({core.List<core.int> x}) m8() => null;
-  List<Function> Function(int y, {int x}) m9() => null;
-  List<Function> Function(int x0, [core.List<core.int> x]) m10() => null;
-  core.List<core.int> Function(int x0) m11() => null;
-  core.List<core.int> Function(int x, [List<Function> x0]) m12() => null;
-  core.List<core.int> Function(int y, {List<T> x}) m13() => null;
-  List<T> Function([List<Function> x]) m14() => null;
-  List<T> Function(List<T> x0) m15() => null;
-  Function(int x0, [Function x1]) m16() => null;
-  Function(int x0, {core.List<core.int> x}) m17() => null;
-  void Function(Function x) m18() => null;
-  void Function(int y, [core.List<core.int> x]) m19() => null;
-  int Function<A>() m20() => null;
-  core.List<core.int> Function<A>(A x) m21() => null;
-  A Function<A>(List<A> x) m22() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// int Function({List<T> x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function({List<T> x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function({List<T> x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-    // The static function has its T always set to int.
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isFalse(f0 is F0<bool>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    Expect.isFalse(confuse(f0) is F0<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x0 = (f0 as dynamic);
-      });
-      Expect.throws(() {
-        x0 = confuse(f0);
-      });
-      Expect.throws(() {
-        l0 = (f0 as dynamic);
-      });
-      Expect.throws(() {
-        l0 = confuse(f0);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m0 is F0<int>);
-      Expect.equals(true, m0 is F0<bool>);
-      Expect.equals(true, confuse(m0) is F0<int>);
-      Expect.equals(true, confuse(m0) is F0<bool>);
-    }
-  }
-
-  /// List<Function> Function(int x, [core.List<core.int> x2])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x, [core.List<core.int> x2]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(
-        m1 is List<Function> Function(int x, [core.List<core.int> x2]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(int x1, [List<Function> x2])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, [List<Function> x2]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int x1, [List<Function> x2]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function([Function x1])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function([Function x1]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function([Function x1]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// List<A> Function<A>(List<T> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(List<T> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is List<A> Function<A>(List<T> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-    // The static function has its T always set to int.
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isFalse(f4 is F4<bool>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    Expect.isFalse(confuse(f4) is F4<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        x4 = confuse(f4);
-      });
-      Expect.throws(() {
-        l4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        l4 = confuse(f4);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m4 is F4<int>);
-      Expect.equals(true, m4 is F4<bool>);
-      Expect.equals(true, confuse(m4) is F4<int>);
-      Expect.equals(true, confuse(m4) is F4<bool>);
-    }
-  }
-
-  /// int Function(List<Function> x) Function()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(List<Function> x) Function() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(List<Function> x) Function());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int y, [List<T> x]) Function()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, [List<T> x]) Function() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int y, [List<T> x]) Function());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function([Function x1]) Function()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function([Function x1]) Function() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function([Function x1]) Function());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function({core.List<core.int> x}) Function()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function({core.List<core.int> x}) Function() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function({core.List<core.int> x}) Function());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int y, {int x}) Function()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, {int x}) Function() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int y, {int x}) Function());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x0, [core.List<core.int> x]) Function()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x0, [core.List<core.int> x]) Function() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10
-        is List<Function> Function(int x0, [core.List<core.int> x]) Function());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int x0) Function()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x0) Function() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(int x0) Function());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x, [List<Function> x2]) Function()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x, [List<Function> x2]) Function() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12
-        is core.List<core.int> Function(int x, [List<Function> x2]) Function());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int y, {List<T> x}) Function()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, {List<T> x}) Function() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(
-        m13 is core.List<core.int> Function(int y, {List<T> x}) Function());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function([List<Function> x]) Function()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([List<Function> x]) Function() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function([List<Function> x]) Function());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(List<T> x0) Function()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(List<T> x0) Function() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(List<T> x0) Function());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x1, [Function x2]) Function()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, [Function x2]) Function() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x1, [Function x2]) Function());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x0, {core.List<core.int> x}) Function()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x0, {core.List<core.int> x}) Function() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x0, {core.List<core.int> x}) Function());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(Function x) Function()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(Function x) Function() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(Function x) Function());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int y, [core.List<core.int> x]) Function()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, [core.List<core.int> x]) Function() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(
-        m19 is void Function(int y, [core.List<core.int> x]) Function());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>() Function()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>() Function() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is int Function<A>() Function());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(A x) Function()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(A x) Function() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is core.List<core.int> Function<A>(A x) Function());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(List<A> x) Function()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(List<A> x) Function() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is A Function<A>(List<A> x) Function());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U52().runTests();
-  new U52<int>(tIsInt: true).runTests();
-  new U52<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type53_test.dart b/tests/language_2/function_type/function_type53_test.dart
deleted file mode 100644
index b16845fa2d0..00000000000
--- a/tests/language_2/function_type/function_type53_test.dart
+++ /dev/null
@@ -1,875 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int x0, {List<T> x});
-typedef F1<T> = List<Function> Function({core.List<core.int> x});
-typedef F2<T> = List<T> Function(int x, [List<Function> x2]);
-typedef F3<T> = void Function(int x1, [Function x2]);
-typedef F4<T> = List<A> Function<A>();
-typedef F5<T> = int Function(List<Function> x) Function(int x);
-typedef F6<T> = int Function(int y, [List<T> x]) Function(int x);
-typedef F7<T> = Function Function([Function x1]) Function(int x);
-typedef F8<T> = Function Function({core.List<core.int> x}) Function(int x);
-typedef F9<T> = List<Function> Function(int y, {int x}) Function(int x);
-typedef F10<T> = List<Function> Function(int x1, [core.List<core.int> x])
-    Function(int x);
-typedef F11<T> = core.List<core.int> Function(int x1) Function(int x);
-typedef F12<T> = core.List<core.int> Function(int x, [List<Function> x1])
-    Function(int x);
-typedef F13<T> = core.List<core.int> Function(int y, {List<T> x}) Function(
-    int x);
-typedef F14<T> = List<T> Function([List<Function> x]) Function(int x);
-typedef F15<T> = List<T> Function(List<T> x1) Function(int x);
-typedef F16<T> = Function(int x2, [Function x3]) Function(int x);
-typedef F17<T> = Function(int x1, {core.List<core.int> x}) Function(int x);
-typedef F18<T> = void Function(Function x) Function(int x);
-typedef F19<T> = void Function(int y, [core.List<core.int> x]) Function(int x);
-typedef F20<T> = int Function<A>() Function(int x);
-typedef F21<T> = core.List<core.int> Function<A>(A x) Function(int x);
-typedef F22<T> = A Function<A>(List<A> x) Function(int x);
-
-int f0(int x0, {List<int> x}) => null;
-List<Function> f1({core.List<core.int> x}) => null;
-List<int> f2(int x, [List<Function> x0]) => null;
-void f3(int x0, [Function x1]) => null;
-List<A> f4<A>() => null;
-int Function(List<Function> x) f5(int x) => null;
-int Function(int y, [List<int> x]) f6(int x) => null;
-Function Function([Function x0]) f7(int x) => null;
-Function Function({core.List<core.int> x}) f8(int x) => null;
-List<Function> Function(int y, {int x}) f9(int x) => null;
-List<Function> Function(int x0, [core.List<core.int> x]) f10(int x) => null;
-core.List<core.int> Function(int x0) f11(int x) => null;
-core.List<core.int> Function(int x, [List<Function> x0]) f12(int x) => null;
-core.List<core.int> Function(int y, {List<int> x}) f13(int x) => null;
-List<int> Function([List<Function> x]) f14(int x) => null;
-List<int> Function(List<int> x0) f15(int x) => null;
-Function(int x0, [Function x1]) f16(int x) => null;
-Function(int x0, {core.List<core.int> x}) f17(int x) => null;
-void Function(Function x) f18(int x) => null;
-void Function(int y, [core.List<core.int> x]) f19(int x) => null;
-int Function<A>() f20(int x) => null;
-core.List<core.int> Function<A>(A x) f21(int x) => null;
-A Function<A>(List<A> x) f22(int x) => null;
-
-class U53<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int x0, {List<T> x}) x0;
-  List<Function> Function({core.List<core.int> x}) x1;
-  List<T> Function(int x, [List<Function> x2]) x2;
-  void Function(int x1, [Function x2]) x3;
-  List<A> Function<A>() x4;
-  int Function(List<Function> x) Function(int x) x5;
-  int Function(int y, [List<T> x]) Function(int x) x6;
-  Function Function([Function x1]) Function(int x) x7;
-  Function Function({core.List<core.int> x}) Function(int x) x8;
-  List<Function> Function(int y, {int x}) Function(int x) x9;
-  List<Function> Function(int x1, [core.List<core.int> x]) Function(int x) x10;
-  core.List<core.int> Function(int x1) Function(int x) x11;
-  core.List<core.int> Function(int x, [List<Function> x1]) Function(int x) x12;
-  core.List<core.int> Function(int y, {List<T> x}) Function(int x) x13;
-  List<T> Function([List<Function> x]) Function(int x) x14;
-  List<T> Function(List<T> x1) Function(int x) x15;
-  Function(int x2, [Function x3]) Function(int x) x16;
-  Function(int x1, {core.List<core.int> x}) Function(int x) x17;
-  void Function(Function x) Function(int x) x18;
-  void Function(int y, [core.List<core.int> x]) Function(int x) x19;
-  int Function<A>() Function(int x) x20;
-  core.List<core.int> Function<A>(A x) Function(int x) x21;
-  A Function<A>(List<A> x) Function(int x) x22;
-
-  U53({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int x0, {List<T> x}) => null;
-  List<Function> m1({core.List<core.int> x}) => null;
-  List<T> m2(int x, [List<Function> x0]) => null;
-  void m3(int x0, [Function x1]) => null;
-  List<A> m4<A>() => null;
-  int Function(List<Function> x) m5(int x) => null;
-  int Function(int y, [List<T> x]) m6(int x) => null;
-  Function Function([Function x0]) m7(int x) => null;
-  Function Function({core.List<core.int> x}) m8(int x) => null;
-  List<Function> Function(int y, {int x}) m9(int x) => null;
-  List<Function> Function(int x0, [core.List<core.int> x]) m10(int x) => null;
-  core.List<core.int> Function(int x0) m11(int x) => null;
-  core.List<core.int> Function(int x, [List<Function> x0]) m12(int x) => null;
-  core.List<core.int> Function(int y, {List<T> x}) m13(int x) => null;
-  List<T> Function([List<Function> x]) m14(int x) => null;
-  List<T> Function(List<T> x0) m15(int x) => null;
-  Function(int x0, [Function x1]) m16(int x) => null;
-  Function(int x0, {core.List<core.int> x}) m17(int x) => null;
-  void Function(Function x) m18(int x) => null;
-  void Function(int y, [core.List<core.int> x]) m19(int x) => null;
-  int Function<A>() m20(int x) => null;
-  core.List<core.int> Function<A>(A x) m21(int x) => null;
-  A Function<A>(List<A> x) m22(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// int Function(int x0, {List<T> x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int x0, {List<T> x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int x0, {List<T> x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-    // The static function has its T always set to int.
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isFalse(f0 is F0<bool>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    Expect.isFalse(confuse(f0) is F0<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x0 = (f0 as dynamic);
-      });
-      Expect.throws(() {
-        x0 = confuse(f0);
-      });
-      Expect.throws(() {
-        l0 = (f0 as dynamic);
-      });
-      Expect.throws(() {
-        l0 = confuse(f0);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m0 is F0<int>);
-      Expect.equals(true, m0 is F0<bool>);
-      Expect.equals(true, confuse(m0) is F0<int>);
-      Expect.equals(true, confuse(m0) is F0<bool>);
-    }
-  }
-
-  /// List<Function> Function({core.List<core.int> x})
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function({core.List<core.int> x}) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function({core.List<core.int> x}));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(int x, [List<Function> x2])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x, [List<Function> x2]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int x, [List<Function> x2]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(int x1, [Function x2])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, [Function x2]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int x1, [Function x2]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// List<A> Function<A>()
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>() l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is List<A> Function<A>());
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(List<Function> x) Function(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(List<Function> x) Function(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(List<Function> x) Function(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int y, [List<T> x]) Function(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, [List<T> x]) Function(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int y, [List<T> x]) Function(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function([Function x1]) Function(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function([Function x1]) Function(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function([Function x1]) Function(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function({core.List<core.int> x}) Function(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function({core.List<core.int> x}) Function(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(
-        m8 is Function Function({core.List<core.int> x}) Function(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int y, {int x}) Function(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, {int x}) Function(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(
-        m9 is List<Function> Function(int y, {int x}) Function(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x1, [core.List<core.int> x]) Function(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, [core.List<core.int> x]) Function(int x)
-        l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x1,
-            [core.List<core.int> x])
-        Function(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int x1) Function(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1) Function(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(int x1) Function(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x, [List<Function> x1]) Function(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x, [List<Function> x1]) Function(int x)
-        l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x,
-            [List<Function> x1])
-        Function(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int y, {List<T> x}) Function(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, {List<T> x}) Function(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(int y, {List<T> x})
-        Function(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function([List<Function> x]) Function(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([List<Function> x]) Function(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function([List<Function> x]) Function(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(List<T> x1) Function(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(List<T> x1) Function(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(List<T> x1) Function(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x2, [Function x3]) Function(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x2, [Function x3]) Function(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x2, [Function x3]) Function(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x1, {core.List<core.int> x}) Function(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, {core.List<core.int> x}) Function(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(
-        m17 is Function(int x1, {core.List<core.int> x}) Function(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(Function x) Function(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(Function x) Function(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(Function x) Function(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int y, [core.List<core.int> x]) Function(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, [core.List<core.int> x]) Function(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(
-        m19 is void Function(int y, [core.List<core.int> x]) Function(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>() Function(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>() Function(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is int Function<A>() Function(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(A x) Function(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(A x) Function(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is core.List<core.int> Function<A>(A x) Function(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(List<A> x) Function(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(List<A> x) Function(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is A Function<A>(List<A> x) Function(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U53().runTests();
-  new U53<int>(tIsInt: true).runTests();
-  new U53<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type54_test.dart b/tests/language_2/function_type/function_type54_test.dart
deleted file mode 100644
index bf5da700e79..00000000000
--- a/tests/language_2/function_type/function_type54_test.dart
+++ /dev/null
@@ -1,908 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int y, {List<T> x});
-typedef F1<T> = List<Function> Function(int x0, {core.List<core.int> x});
-typedef F2<T> = List<T> Function({List<Function> x});
-typedef F3<T> = void Function(int x, [Function x2]);
-typedef F4<T> = List<A> Function<A>(A x);
-typedef F5<T> = int Function(List<Function> x) Function<B extends core.int>();
-typedef F6<T> = int Function(int y, [List<T> x]) Function<B extends core.int>();
-typedef F7<T> = Function Function([Function x1]) Function<B extends core.int>();
-typedef F8<T> = Function Function({core.List<core.int> x})
-    Function<B extends core.int>();
-typedef F9<T> = List<Function> Function(int y, {int x})
-    Function<B extends core.int>();
-typedef F10<T> = List<Function> Function(int x1, [core.List<core.int> x])
-    Function<B extends core.int>();
-typedef F11<T> = core.List<core.int> Function(int x1)
-    Function<B extends core.int>();
-typedef F12<T> = core.List<core.int> Function(int x, [List<Function> x1])
-    Function<B extends core.int>();
-typedef F13<T> = core.List<core.int> Function(int y, {List<T> x})
-    Function<B extends core.int>();
-typedef F14<T> = List<T> Function([List<Function> x])
-    Function<B extends core.int>();
-typedef F15<T> = List<T> Function(List<T> x1) Function<B extends core.int>();
-typedef F16<T> = Function(int x2, [Function x3]) Function<B extends core.int>();
-typedef F17<T> = Function(int x1, {core.List<core.int> x})
-    Function<B extends core.int>();
-typedef F18<T> = void Function(Function x) Function<B extends core.int>();
-typedef F19<T> = void Function(int y, [core.List<core.int> x])
-    Function<B extends core.int>();
-typedef F20<T> = int Function<A>() Function<B extends core.int>();
-typedef F21<T> = core.List<core.int> Function<A>(A x)
-    Function<B extends core.int>();
-typedef F22<T> = A Function<A>(List<A> x) Function<B extends core.int>();
-
-int f0(int y, {List<int> x}) => null;
-List<Function> f1(int x0, {core.List<core.int> x}) => null;
-List<int> f2({List<Function> x}) => null;
-void f3(int x, [Function x0]) => null;
-List<A> f4<A>(A x) => null;
-int Function(List<Function> x) f5<B extends core.int>() => null;
-int Function(int y, [List<int> x]) f6<B extends core.int>() => null;
-Function Function([Function x0]) f7<B extends core.int>() => null;
-Function Function({core.List<core.int> x}) f8<B extends core.int>() => null;
-List<Function> Function(int y, {int x}) f9<B extends core.int>() => null;
-List<Function> Function(int x0, [core.List<core.int> x])
-    f10<B extends core.int>() => null;
-core.List<core.int> Function(int x0) f11<B extends core.int>() => null;
-core.List<core.int> Function(int x, [List<Function> x0])
-    f12<B extends core.int>() => null;
-core.List<core.int> Function(int y, {List<int> x}) f13<B extends core.int>() =>
-    null;
-List<int> Function([List<Function> x]) f14<B extends core.int>() => null;
-List<int> Function(List<int> x0) f15<B extends core.int>() => null;
-Function(int x0, [Function x1]) f16<B extends core.int>() => null;
-Function(int x0, {core.List<core.int> x}) f17<B extends core.int>() => null;
-void Function(Function x) f18<B extends core.int>() => null;
-void Function(int y, [core.List<core.int> x]) f19<B extends core.int>() => null;
-int Function<A>() f20<B extends core.int>() => null;
-core.List<core.int> Function<A>(A x) f21<B extends core.int>() => null;
-A Function<A>(List<A> x) f22<B extends core.int>() => null;
-
-class U54<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int y, {List<T> x}) x0;
-  List<Function> Function(int x0, {core.List<core.int> x}) x1;
-  List<T> Function({List<Function> x}) x2;
-  void Function(int x, [Function x2]) x3;
-  List<A> Function<A>(A x) x4;
-  int Function(List<Function> x) Function<B extends core.int>() x5;
-  int Function(int y, [List<T> x]) Function<B extends core.int>() x6;
-  Function Function([Function x1]) Function<B extends core.int>() x7;
-  Function Function({core.List<core.int> x}) Function<B extends core.int>() x8;
-  List<Function> Function(int y, {int x}) Function<B extends core.int>() x9;
-  List<Function> Function(int x1, [core.List<core.int> x])
-      Function<B extends core.int>() x10;
-  core.List<core.int> Function(int x1) Function<B extends core.int>() x11;
-  core.List<core.int> Function(int x, [List<Function> x1])
-      Function<B extends core.int>() x12;
-  core.List<core.int> Function(int y, {List<T> x})
-      Function<B extends core.int>() x13;
-  List<T> Function([List<Function> x]) Function<B extends core.int>() x14;
-  List<T> Function(List<T> x1) Function<B extends core.int>() x15;
-  Function(int x2, [Function x3]) Function<B extends core.int>() x16;
-  Function(int x1, {core.List<core.int> x}) Function<B extends core.int>() x17;
-  void Function(Function x) Function<B extends core.int>() x18;
-  void Function(int y, [core.List<core.int> x]) Function<B extends core.int>()
-      x19;
-  int Function<A>() Function<B extends core.int>() x20;
-  core.List<core.int> Function<A>(A x) Function<B extends core.int>() x21;
-  A Function<A>(List<A> x) Function<B extends core.int>() x22;
-
-  U54({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int y, {List<T> x}) => null;
-  List<Function> m1(int x0, {core.List<core.int> x}) => null;
-  List<T> m2({List<Function> x}) => null;
-  void m3(int x, [Function x0]) => null;
-  List<A> m4<A>(A x) => null;
-  int Function(List<Function> x) m5<B extends core.int>() => null;
-  int Function(int y, [List<T> x]) m6<B extends core.int>() => null;
-  Function Function([Function x0]) m7<B extends core.int>() => null;
-  Function Function({core.List<core.int> x}) m8<B extends core.int>() => null;
-  List<Function> Function(int y, {int x}) m9<B extends core.int>() => null;
-  List<Function> Function(int x0, [core.List<core.int> x])
-      m10<B extends core.int>() => null;
-  core.List<core.int> Function(int x0) m11<B extends core.int>() => null;
-  core.List<core.int> Function(int x, [List<Function> x0])
-      m12<B extends core.int>() => null;
-  core.List<core.int> Function(int y, {List<T> x}) m13<B extends core.int>() =>
-      null;
-  List<T> Function([List<Function> x]) m14<B extends core.int>() => null;
-  List<T> Function(List<T> x0) m15<B extends core.int>() => null;
-  Function(int x0, [Function x1]) m16<B extends core.int>() => null;
-  Function(int x0, {core.List<core.int> x}) m17<B extends core.int>() => null;
-  void Function(Function x) m18<B extends core.int>() => null;
-  void Function(int y, [core.List<core.int> x]) m19<B extends core.int>() =>
-      null;
-  int Function<A>() m20<B extends core.int>() => null;
-  core.List<core.int> Function<A>(A x) m21<B extends core.int>() => null;
-  A Function<A>(List<A> x) m22<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// int Function(int y, {List<T> x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, {List<T> x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int y, {List<T> x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-    // The static function has its T always set to int.
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isFalse(f0 is F0<bool>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    Expect.isFalse(confuse(f0) is F0<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x0 = (f0 as dynamic);
-      });
-      Expect.throws(() {
-        x0 = confuse(f0);
-      });
-      Expect.throws(() {
-        l0 = (f0 as dynamic);
-      });
-      Expect.throws(() {
-        l0 = confuse(f0);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m0 is F0<int>);
-      Expect.equals(true, m0 is F0<bool>);
-      Expect.equals(true, confuse(m0) is F0<int>);
-      Expect.equals(true, confuse(m0) is F0<bool>);
-    }
-  }
-
-  /// List<Function> Function(int x0, {core.List<core.int> x})
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x0, {core.List<core.int> x}) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(
-        m1 is List<Function> Function(int x0, {core.List<core.int> x}));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function({List<Function> x})
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function({List<Function> x}) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function({List<Function> x}));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(int x, [Function x2])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int x, [Function x2]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int x, [Function x2]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// List<A> Function<A>(A x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(A x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is List<A> Function<A>(A x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(List<Function> x) Function<B extends core.int>()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(List<Function> x) Function<B extends core.int>() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(
-        m5 is int Function(List<Function> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int y, [List<T> x]) Function<B extends core.int>()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, [List<T> x]) Function<B extends core.int>() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is int Function(int y, [List<T> x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function([Function x1]) Function<B extends core.int>()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function([Function x1]) Function<B extends core.int>() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(
-        m7 is Function Function([Function x1]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function({core.List<core.int> x}) Function<B extends core.int>()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function({core.List<core.int> x}) Function<B extends core.int>()
-        l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function({core.List<core.int> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int y, {int x}) Function<B extends core.int>()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, {int x}) Function<B extends core.int>() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int y, {int x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x1, [core.List<core.int> x]) Function<B extends core.int>()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, [core.List<core.int> x])
-        Function<B extends core.int>() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x1,
-            [core.List<core.int> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int x1) Function<B extends core.int>()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1) Function<B extends core.int>() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(int x1)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x, [List<Function> x1]) Function<B extends core.int>()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x, [List<Function> x1])
-        Function<B extends core.int>() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x,
-            [List<Function> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int y, {List<T> x}) Function<B extends core.int>()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, {List<T> x})
-        Function<B extends core.int>() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(int y, {List<T> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function([List<Function> x]) Function<B extends core.int>()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([List<Function> x]) Function<B extends core.int>() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function([List<Function> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(List<T> x1) Function<B extends core.int>()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(List<T> x1) Function<B extends core.int>() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(
-        m15 is List<T> Function(List<T> x1) Function<B extends core.int>());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x2, [Function x3]) Function<B extends core.int>()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x2, [Function x3]) Function<B extends core.int>() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function(int x2, [Function x3]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x1, {core.List<core.int> x}) Function<B extends core.int>()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, {core.List<core.int> x}) Function<B extends core.int>()
-        l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x1, {core.List<core.int> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(Function x) Function<B extends core.int>()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(Function x) Function<B extends core.int>() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(
-        m18 is void Function(Function x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int y, [core.List<core.int> x]) Function<B extends core.int>()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, [core.List<core.int> x]) Function<B extends core.int>()
-        l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int y, [core.List<core.int> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>() Function<B extends core.int>()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>() Function<B extends core.int>() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is int Function<A>() Function<B extends core.int>());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(A x) Function<B extends core.int>()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(A x) Function<B extends core.int>() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is core.List<core.int> Function<A>(A x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(List<A> x) Function<B extends core.int>()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(List<A> x) Function<B extends core.int>() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(
-        m22 is A Function<A>(List<A> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U54().runTests();
-  new U54<int>(tIsInt: true).runTests();
-  new U54<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type55_test.dart b/tests/language_2/function_type/function_type55_test.dart
deleted file mode 100644
index 2c771d24fc8..00000000000
--- a/tests/language_2/function_type/function_type55_test.dart
+++ /dev/null
@@ -1,903 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function();
-typedef F1<T> = List<Function> Function(int y, {core.List<core.int> x});
-typedef F2<T> = List<T> Function(int x0, {List<Function> x});
-typedef F3<T> = void Function({Function x});
-typedef F4<T> = List<A> Function<A>(List<A> x);
-typedef F5<T> = int Function(List<Function> x) Function<B extends core.int>(
-    int x);
-typedef F6<T> = int Function(int y, [List<T> x]) Function<B extends core.int>(
-    int x);
-typedef F7<T> = Function Function([Function x1]) Function<B extends core.int>(
-    int x);
-typedef F8<T> = Function Function({core.List<core.int> x})
-    Function<B extends core.int>(int x);
-typedef F9<T> = List<Function> Function(int y, {int x})
-    Function<B extends core.int>(int x);
-typedef F10<T> = List<Function> Function(int x1, [core.List<core.int> x])
-    Function<B extends core.int>(int x);
-typedef F11<T> = core.List<core.int> Function(int x1)
-    Function<B extends core.int>(int x);
-typedef F12<T> = core.List<core.int> Function(int x, [List<Function> x1])
-    Function<B extends core.int>(int x);
-typedef F13<T> = core.List<core.int> Function(int y, {List<T> x})
-    Function<B extends core.int>(int x);
-typedef F14<T> = List<T> Function([List<Function> x])
-    Function<B extends core.int>(int x);
-typedef F15<T> = List<T> Function(List<T> x1) Function<B extends core.int>(
-    int x);
-typedef F16<T> = Function(int x2, [Function x3]) Function<B extends core.int>(
-    int x);
-typedef F17<T> = Function(int x1, {core.List<core.int> x})
-    Function<B extends core.int>(int x);
-typedef F18<T> = void Function(Function x) Function<B extends core.int>(int x);
-typedef F19<T> = void Function(int y, [core.List<core.int> x])
-    Function<B extends core.int>(int x);
-typedef F20<T> = int Function<A>() Function<B extends core.int>(int x);
-typedef F21<T> = core.List<core.int> Function<A>(A x)
-    Function<B extends core.int>(int x);
-typedef F22<T> = A Function<A>(List<A> x) Function<B extends core.int>(int x);
-
-int f0() => null;
-List<Function> f1(int y, {core.List<core.int> x}) => null;
-List<int> f2(int x0, {List<Function> x}) => null;
-void f3({Function x}) => null;
-List<A> f4<A>(List<A> x) => null;
-int Function(List<Function> x) f5<B extends core.int>(int x) => null;
-int Function(int y, [List<int> x]) f6<B extends core.int>(int x) => null;
-Function Function([Function x0]) f7<B extends core.int>(int x) => null;
-Function Function({core.List<core.int> x}) f8<B extends core.int>(int x) =>
-    null;
-List<Function> Function(int y, {int x}) f9<B extends core.int>(int x) => null;
-List<Function> Function(int x0, [core.List<core.int> x])
-    f10<B extends core.int>(int x) => null;
-core.List<core.int> Function(int x0) f11<B extends core.int>(int x) => null;
-core.List<core.int> Function(int x, [List<Function> x0])
-    f12<B extends core.int>(int x) => null;
-core.List<core.int> Function(int y, {List<int> x}) f13<B extends core.int>(
-        int x) =>
-    null;
-List<int> Function([List<Function> x]) f14<B extends core.int>(int x) => null;
-List<int> Function(List<int> x0) f15<B extends core.int>(int x) => null;
-Function(int x0, [Function x1]) f16<B extends core.int>(int x) => null;
-Function(int x0, {core.List<core.int> x}) f17<B extends core.int>(int x) =>
-    null;
-void Function(Function x) f18<B extends core.int>(int x) => null;
-void Function(int y, [core.List<core.int> x]) f19<B extends core.int>(int x) =>
-    null;
-int Function<A>() f20<B extends core.int>(int x) => null;
-core.List<core.int> Function<A>(A x) f21<B extends core.int>(int x) => null;
-A Function<A>(List<A> x) f22<B extends core.int>(int x) => null;
-
-class U55<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function() x0;
-  List<Function> Function(int y, {core.List<core.int> x}) x1;
-  List<T> Function(int x0, {List<Function> x}) x2;
-  void Function({Function x}) x3;
-  List<A> Function<A>(List<A> x) x4;
-  int Function(List<Function> x) Function<B extends core.int>(int x) x5;
-  int Function(int y, [List<T> x]) Function<B extends core.int>(int x) x6;
-  Function Function([Function x1]) Function<B extends core.int>(int x) x7;
-  Function Function({core.List<core.int> x}) Function<B extends core.int>(int x)
-      x8;
-  List<Function> Function(int y, {int x}) Function<B extends core.int>(int x)
-      x9;
-  List<Function> Function(int x1, [core.List<core.int> x])
-      Function<B extends core.int>(int x) x10;
-  core.List<core.int> Function(int x1) Function<B extends core.int>(int x) x11;
-  core.List<core.int> Function(int x, [List<Function> x1])
-      Function<B extends core.int>(int x) x12;
-  core.List<core.int> Function(int y, {List<T> x}) Function<B extends core.int>(
-      int x) x13;
-  List<T> Function([List<Function> x]) Function<B extends core.int>(int x) x14;
-  List<T> Function(List<T> x1) Function<B extends core.int>(int x) x15;
-  Function(int x2, [Function x3]) Function<B extends core.int>(int x) x16;
-  Function(int x1, {core.List<core.int> x}) Function<B extends core.int>(int x)
-      x17;
-  void Function(Function x) Function<B extends core.int>(int x) x18;
-  void Function(int y, [core.List<core.int> x]) Function<B extends core.int>(
-      int x) x19;
-  int Function<A>() Function<B extends core.int>(int x) x20;
-  core.List<core.int> Function<A>(A x) Function<B extends core.int>(int x) x21;
-  A Function<A>(List<A> x) Function<B extends core.int>(int x) x22;
-
-  U55({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0() => null;
-  List<Function> m1(int y, {core.List<core.int> x}) => null;
-  List<T> m2(int x0, {List<Function> x}) => null;
-  void m3({Function x}) => null;
-  List<A> m4<A>(List<A> x) => null;
-  int Function(List<Function> x) m5<B extends core.int>(int x) => null;
-  int Function(int y, [List<T> x]) m6<B extends core.int>(int x) => null;
-  Function Function([Function x0]) m7<B extends core.int>(int x) => null;
-  Function Function({core.List<core.int> x}) m8<B extends core.int>(int x) =>
-      null;
-  List<Function> Function(int y, {int x}) m9<B extends core.int>(int x) => null;
-  List<Function> Function(int x0, [core.List<core.int> x])
-      m10<B extends core.int>(int x) => null;
-  core.List<core.int> Function(int x0) m11<B extends core.int>(int x) => null;
-  core.List<core.int> Function(int x, [List<Function> x0])
-      m12<B extends core.int>(int x) => null;
-  core.List<core.int> Function(int y, {List<T> x}) m13<B extends core.int>(
-          int x) =>
-      null;
-  List<T> Function([List<Function> x]) m14<B extends core.int>(int x) => null;
-  List<T> Function(List<T> x0) m15<B extends core.int>(int x) => null;
-  Function(int x0, [Function x1]) m16<B extends core.int>(int x) => null;
-  Function(int x0, {core.List<core.int> x}) m17<B extends core.int>(int x) =>
-      null;
-  void Function(Function x) m18<B extends core.int>(int x) => null;
-  void Function(int y, [core.List<core.int> x]) m19<B extends core.int>(
-          int x) =>
-      null;
-  int Function<A>() m20<B extends core.int>(int x) => null;
-  core.List<core.int> Function<A>(A x) m21<B extends core.int>(int x) => null;
-  A Function<A>(List<A> x) m22<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// int Function()
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function() l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function());
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(int y, {core.List<core.int> x})
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, {core.List<core.int> x}) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(
-        m1 is List<Function> Function(int y, {core.List<core.int> x}));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(int x0, {List<Function> x})
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x0, {List<Function> x}) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int x0, {List<Function> x}));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function({Function x})
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function({Function x}) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function({Function x}));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// List<A> Function<A>(List<A> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(List<A> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is List<A> Function<A>(List<A> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(List<Function> x) Function<B extends core.int>(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(List<Function> x) Function<B extends core.int>(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(List<Function> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int y, [List<T> x]) Function<B extends core.int>(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, [List<T> x]) Function<B extends core.int>(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int y, [List<T> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function([Function x1]) Function<B extends core.int>(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function([Function x1]) Function<B extends core.int>(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function([Function x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function({core.List<core.int> x}) Function<B extends core.int>(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function({core.List<core.int> x}) Function<B extends core.int>(
-        int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function({core.List<core.int> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(int y, {int x}) Function<B extends core.int>(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, {int x}) Function<B extends core.int>(int x)
-        l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int y, {int x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x1, [core.List<core.int> x]) Function<B extends core.int>(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, [core.List<core.int> x])
-        Function<B extends core.int>(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x1,
-            [core.List<core.int> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int x1) Function<B extends core.int>(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1) Function<B extends core.int>(int x)
-        l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(int x1)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x, [List<Function> x1]) Function<B extends core.int>(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x, [List<Function> x1])
-        Function<B extends core.int>(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x,
-            [List<Function> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int y, {List<T> x}) Function<B extends core.int>(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, {List<T> x})
-        Function<B extends core.int>(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(int y, {List<T> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function([List<Function> x]) Function<B extends core.int>(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([List<Function> x]) Function<B extends core.int>(int x)
-        l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function([List<Function> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(List<T> x1) Function<B extends core.int>(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(List<T> x1) Function<B extends core.int>(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(List<T> x1)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x2, [Function x3]) Function<B extends core.int>(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x2, [Function x3]) Function<B extends core.int>(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x2, [Function x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x1, {core.List<core.int> x}) Function<B extends core.int>(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, {core.List<core.int> x}) Function<B extends core.int>(
-        int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x1, {core.List<core.int> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(Function x) Function<B extends core.int>(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(Function x) Function<B extends core.int>(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(
-        m18 is void Function(Function x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int y, [core.List<core.int> x]) Function<B extends core.int>(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, [core.List<core.int> x]) Function<B extends core.int>(
-        int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int y, [core.List<core.int> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>() Function<B extends core.int>(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>() Function<B extends core.int>(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is int Function<A>() Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(A x) Function<B extends core.int>(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(A x) Function<B extends core.int>(int x)
-        l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is core.List<core.int> Function<A>(A x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// A Function<A>(List<A> x) Function<B extends core.int>(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    A Function<A>(List<A> x) Function<B extends core.int>(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(
-        m22 is A Function<A>(List<A> x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U55().runTests();
-  new U55<int>(tIsInt: true).runTests();
-  new U55<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type56_test.dart b/tests/language_2/function_type/function_type56_test.dart
deleted file mode 100644
index 4a805e9fd14..00000000000
--- a/tests/language_2/function_type/function_type56_test.dart
+++ /dev/null
@@ -1,841 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(int x);
-typedef F1<T> = List<Function> Function(List<T> x);
-typedef F2<T> = List<T> Function(int y, {List<Function> x});
-typedef F3<T> = void Function(int x0, {Function x});
-typedef F4<T> = void Function<A>(int x);
-typedef F5<T> = int Function([List<Function> x]) Function();
-typedef F6<T> = int Function(List<T> x0) Function();
-typedef F7<T> = Function Function(int x1, [Function x2]) Function();
-typedef F8<T> = Function Function(int x0, {core.List<core.int> x}) Function();
-typedef F9<T> = List<Function> Function(Function x) Function();
-typedef F10<T> = List<Function> Function(int y, [core.List<core.int> x])
-    Function();
-typedef F11<T> = core.List<core.int> Function([int x1]) Function();
-typedef F12<T> = core.List<core.int> Function({List<Function> x}) Function();
-typedef F13<T> = core.List<core.int> Function() Function();
-typedef F14<T> = List<T> Function(int x0, [List<Function> x]) Function();
-typedef F15<T> = List<T> Function([List<T> x1]) Function();
-typedef F16<T> = Function(int x, [Function x2]) Function();
-typedef F17<T> = Function(int y, {core.List<core.int> x}) Function();
-typedef F18<T> = void Function([Function x]) Function();
-typedef F19<T> = void Function(core.List<core.int> x0) Function();
-typedef F20<T> = int Function<A>(A x) Function();
-typedef F21<T> = core.List<core.int> Function<A>(List<A> x) Function();
-typedef F22<T> = List<A> Function<A>(int x) Function();
-
-Function f0(int x) => null;
-List<Function> f1(List<int> x) => null;
-List<int> f2(int y, {List<Function> x}) => null;
-void f3(int x0, {Function x}) => null;
-void f4<A>(int x) => null;
-int Function([List<Function> x]) f5() => null;
-int Function(List<int> x0) f6() => null;
-Function Function(int x0, [Function x1]) f7() => null;
-Function Function(int x0, {core.List<core.int> x}) f8() => null;
-List<Function> Function(Function x) f9() => null;
-List<Function> Function(int y, [core.List<core.int> x]) f10() => null;
-core.List<core.int> Function([int x0]) f11() => null;
-core.List<core.int> Function({List<Function> x}) f12() => null;
-core.List<core.int> Function() f13() => null;
-List<int> Function(int x0, [List<Function> x]) f14() => null;
-List<int> Function([List<int> x0]) f15() => null;
-Function(int x, [Function x0]) f16() => null;
-Function(int y, {core.List<core.int> x}) f17() => null;
-void Function([Function x]) f18() => null;
-void Function(core.List<core.int> x0) f19() => null;
-int Function<A>(A x) f20() => null;
-core.List<core.int> Function<A>(List<A> x) f21() => null;
-List<A> Function<A>(int x) f22() => null;
-
-class U56<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(int x) x0;
-  List<Function> Function(List<T> x) x1;
-  List<T> Function(int y, {List<Function> x}) x2;
-  void Function(int x0, {Function x}) x3;
-  void Function<A>(int x) x4;
-  int Function([List<Function> x]) Function() x5;
-  int Function(List<T> x0) Function() x6;
-  Function Function(int x1, [Function x2]) Function() x7;
-  Function Function(int x0, {core.List<core.int> x}) Function() x8;
-  List<Function> Function(Function x) Function() x9;
-  List<Function> Function(int y, [core.List<core.int> x]) Function() x10;
-  core.List<core.int> Function([int x1]) Function() x11;
-  core.List<core.int> Function({List<Function> x}) Function() x12;
-  core.List<core.int> Function() Function() x13;
-  List<T> Function(int x0, [List<Function> x]) Function() x14;
-  List<T> Function([List<T> x1]) Function() x15;
-  Function(int x, [Function x2]) Function() x16;
-  Function(int y, {core.List<core.int> x}) Function() x17;
-  void Function([Function x]) Function() x18;
-  void Function(core.List<core.int> x0) Function() x19;
-  int Function<A>(A x) Function() x20;
-  core.List<core.int> Function<A>(List<A> x) Function() x21;
-  List<A> Function<A>(int x) Function() x22;
-
-  U56({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(int x) => null;
-  List<Function> m1(List<T> x) => null;
-  List<T> m2(int y, {List<Function> x}) => null;
-  void m3(int x0, {Function x}) => null;
-  void m4<A>(int x) => null;
-  int Function([List<Function> x]) m5() => null;
-  int Function(List<T> x0) m6() => null;
-  Function Function(int x0, [Function x1]) m7() => null;
-  Function Function(int x0, {core.List<core.int> x}) m8() => null;
-  List<Function> Function(Function x) m9() => null;
-  List<Function> Function(int y, [core.List<core.int> x]) m10() => null;
-  core.List<core.int> Function([int x0]) m11() => null;
-  core.List<core.int> Function({List<Function> x}) m12() => null;
-  core.List<core.int> Function() m13() => null;
-  List<T> Function(int x0, [List<Function> x]) m14() => null;
-  List<T> Function([List<T> x0]) m15() => null;
-  Function(int x, [Function x0]) m16() => null;
-  Function(int y, {core.List<core.int> x}) m17() => null;
-  void Function([Function x]) m18() => null;
-  void Function(core.List<core.int> x0) m19() => null;
-  int Function<A>(A x) m20() => null;
-  core.List<core.int> Function<A>(List<A> x) m21() => null;
-  List<A> Function<A>(int x) m22() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(int x)
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(int x));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(List<T> x)
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(List<T> x) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(List<T> x));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-    // The static function has its T always set to int.
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isFalse(f1 is F1<bool>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    Expect.isFalse(confuse(f1) is F1<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        x1 = confuse(f1);
-      });
-      Expect.throws(() {
-        l1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        l1 = confuse(f1);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m1 is F1<int>);
-      Expect.equals(true, m1 is F1<bool>);
-      Expect.equals(true, confuse(m1) is F1<int>);
-      Expect.equals(true, confuse(m1) is F1<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, {List<Function> x})
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, {List<Function> x}) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int y, {List<Function> x}));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(int x0, {Function x})
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int x0, {Function x}) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int x0, {Function x}));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// void Function<A>(int x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(int x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is void Function<A>(int x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function([List<Function> x]) Function()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function([List<Function> x]) Function() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function([List<Function> x]) Function());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(List<T> x0) Function()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(List<T> x0) Function() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(List<T> x0) Function());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(int x1, [Function x2]) Function()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, [Function x2]) Function() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x1, [Function x2]) Function());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x0, {core.List<core.int> x}) Function()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x0, {core.List<core.int> x}) Function() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(
-        m8 is Function Function(int x0, {core.List<core.int> x}) Function());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(Function x) Function()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(Function x) Function() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(Function x) Function());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int y, [core.List<core.int> x]) Function()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, [core.List<core.int> x]) Function() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int y, [core.List<core.int> x])
-        Function());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function([int x1]) Function()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([int x1]) Function() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function([int x1]) Function());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function({List<Function> x}) Function()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function({List<Function> x}) Function() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(
-        m12 is core.List<core.int> Function({List<Function> x}) Function());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function() Function()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function() Function() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function() Function());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-  }
-
-  /// List<T> Function(int x0, [List<Function> x]) Function()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x0, [List<Function> x]) Function() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(
-        m14 is List<T> Function(int x0, [List<Function> x]) Function());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function([List<T> x1]) Function()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([List<T> x1]) Function() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function([List<T> x1]) Function());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x, [Function x2]) Function()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x, [Function x2]) Function() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x, [Function x2]) Function());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int y, {core.List<core.int> x}) Function()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int y, {core.List<core.int> x}) Function() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int y, {core.List<core.int> x}) Function());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function([Function x]) Function()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function([Function x]) Function() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function([Function x]) Function());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(core.List<core.int> x0) Function()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(core.List<core.int> x0) Function() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(core.List<core.int> x0) Function());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(A x) Function()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(A x) Function() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is int Function<A>(A x) Function());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(List<A> x) Function()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(List<A> x) Function() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is core.List<core.int> Function<A>(List<A> x) Function());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// List<A> Function<A>(int x) Function()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(int x) Function() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is List<A> Function<A>(int x) Function());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U56().runTests();
-  new U56<int>(tIsInt: true).runTests();
-  new U56<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type57_test.dart b/tests/language_2/function_type/function_type57_test.dart
deleted file mode 100644
index 869755ccbf7..00000000000
--- a/tests/language_2/function_type/function_type57_test.dart
+++ /dev/null
@@ -1,847 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function([int x]);
-typedef F1<T> = List<Function> Function([List<T> x]);
-typedef F2<T> = List<T> Function(core.List<core.int> x);
-typedef F3<T> = void Function(int y, {Function x});
-typedef F4<T> = void Function<A>(Function x);
-typedef F5<T> = int Function([List<Function> x]) Function(int x);
-typedef F6<T> = int Function(List<T> x1) Function(int x);
-typedef F7<T> = Function Function(int x2, [Function x3]) Function(int x);
-typedef F8<T> = Function Function(int x1, {core.List<core.int> x}) Function(
-    int x);
-typedef F9<T> = List<Function> Function(Function x) Function(int x);
-typedef F10<T> = List<Function> Function(int y, [core.List<core.int> x])
-    Function(int x);
-typedef F11<T> = core.List<core.int> Function([int x1]) Function(int x);
-typedef F12<T> = core.List<core.int> Function({List<Function> x}) Function(
-    int x);
-typedef F13<T> = core.List<core.int> Function() Function(int x);
-typedef F14<T> = List<T> Function(int x1, [List<Function> x]) Function(int x);
-typedef F15<T> = List<T> Function([List<T> x1]) Function(int x);
-typedef F16<T> = Function(int x, [Function x1]) Function(int x);
-typedef F17<T> = Function(int y, {core.List<core.int> x}) Function(int x);
-typedef F18<T> = void Function([Function x]) Function(int x);
-typedef F19<T> = void Function(core.List<core.int> x1) Function(int x);
-typedef F20<T> = int Function<A>(A x) Function(int x);
-typedef F21<T> = core.List<core.int> Function<A>(List<A> x) Function(int x);
-typedef F22<T> = List<A> Function<A>(int x) Function(int x);
-
-Function f0([int x]) => null;
-List<Function> f1([List<int> x]) => null;
-List<int> f2(core.List<core.int> x) => null;
-void f3(int y, {Function x}) => null;
-void f4<A>(Function x) => null;
-int Function([List<Function> x]) f5(int x) => null;
-int Function(List<int> x0) f6(int x) => null;
-Function Function(int x0, [Function x1]) f7(int x) => null;
-Function Function(int x0, {core.List<core.int> x}) f8(int x) => null;
-List<Function> Function(Function x) f9(int x) => null;
-List<Function> Function(int y, [core.List<core.int> x]) f10(int x) => null;
-core.List<core.int> Function([int x0]) f11(int x) => null;
-core.List<core.int> Function({List<Function> x}) f12(int x) => null;
-core.List<core.int> Function() f13(int x) => null;
-List<int> Function(int x0, [List<Function> x]) f14(int x) => null;
-List<int> Function([List<int> x0]) f15(int x) => null;
-Function(int x, [Function x0]) f16(int x) => null;
-Function(int y, {core.List<core.int> x}) f17(int x) => null;
-void Function([Function x]) f18(int x) => null;
-void Function(core.List<core.int> x0) f19(int x) => null;
-int Function<A>(A x) f20(int x) => null;
-core.List<core.int> Function<A>(List<A> x) f21(int x) => null;
-List<A> Function<A>(int x) f22(int x) => null;
-
-class U57<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function([int x]) x0;
-  List<Function> Function([List<T> x]) x1;
-  List<T> Function(core.List<core.int> x) x2;
-  void Function(int y, {Function x}) x3;
-  void Function<A>(Function x) x4;
-  int Function([List<Function> x]) Function(int x) x5;
-  int Function(List<T> x1) Function(int x) x6;
-  Function Function(int x2, [Function x3]) Function(int x) x7;
-  Function Function(int x1, {core.List<core.int> x}) Function(int x) x8;
-  List<Function> Function(Function x) Function(int x) x9;
-  List<Function> Function(int y, [core.List<core.int> x]) Function(int x) x10;
-  core.List<core.int> Function([int x1]) Function(int x) x11;
-  core.List<core.int> Function({List<Function> x}) Function(int x) x12;
-  core.List<core.int> Function() Function(int x) x13;
-  List<T> Function(int x1, [List<Function> x]) Function(int x) x14;
-  List<T> Function([List<T> x1]) Function(int x) x15;
-  Function(int x, [Function x1]) Function(int x) x16;
-  Function(int y, {core.List<core.int> x}) Function(int x) x17;
-  void Function([Function x]) Function(int x) x18;
-  void Function(core.List<core.int> x1) Function(int x) x19;
-  int Function<A>(A x) Function(int x) x20;
-  core.List<core.int> Function<A>(List<A> x) Function(int x) x21;
-  List<A> Function<A>(int x) Function(int x) x22;
-
-  U57({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0([int x]) => null;
-  List<Function> m1([List<T> x]) => null;
-  List<T> m2(core.List<core.int> x) => null;
-  void m3(int y, {Function x}) => null;
-  void m4<A>(Function x) => null;
-  int Function([List<Function> x]) m5(int x) => null;
-  int Function(List<T> x0) m6(int x) => null;
-  Function Function(int x0, [Function x1]) m7(int x) => null;
-  Function Function(int x0, {core.List<core.int> x}) m8(int x) => null;
-  List<Function> Function(Function x) m9(int x) => null;
-  List<Function> Function(int y, [core.List<core.int> x]) m10(int x) => null;
-  core.List<core.int> Function([int x0]) m11(int x) => null;
-  core.List<core.int> Function({List<Function> x}) m12(int x) => null;
-  core.List<core.int> Function() m13(int x) => null;
-  List<T> Function(int x0, [List<Function> x]) m14(int x) => null;
-  List<T> Function([List<T> x0]) m15(int x) => null;
-  Function(int x, [Function x0]) m16(int x) => null;
-  Function(int y, {core.List<core.int> x}) m17(int x) => null;
-  void Function([Function x]) m18(int x) => null;
-  void Function(core.List<core.int> x0) m19(int x) => null;
-  int Function<A>(A x) m20(int x) => null;
-  core.List<core.int> Function<A>(List<A> x) m21(int x) => null;
-  List<A> Function<A>(int x) m22(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function([int x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function([int x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function([int x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function([List<T> x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([List<T> x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function([List<T> x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-    // The static function has its T always set to int.
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isFalse(f1 is F1<bool>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    Expect.isFalse(confuse(f1) is F1<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        x1 = confuse(f1);
-      });
-      Expect.throws(() {
-        l1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        l1 = confuse(f1);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m1 is F1<int>);
-      Expect.equals(true, m1 is F1<bool>);
-      Expect.equals(true, confuse(m1) is F1<int>);
-      Expect.equals(true, confuse(m1) is F1<bool>);
-    }
-  }
-
-  /// List<T> Function(core.List<core.int> x)
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(core.List<core.int> x) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(core.List<core.int> x));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(int y, {Function x})
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, {Function x}) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int y, {Function x}));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// void Function<A>(Function x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(Function x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is void Function<A>(Function x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function([List<Function> x]) Function(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function([List<Function> x]) Function(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function([List<Function> x]) Function(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(List<T> x1) Function(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(List<T> x1) Function(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(List<T> x1) Function(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(int x2, [Function x3]) Function(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x2, [Function x3]) Function(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(
-        m7 is Function Function(int x2, [Function x3]) Function(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x1, {core.List<core.int> x}) Function(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, {core.List<core.int> x}) Function(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x1, {core.List<core.int> x})
-        Function(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(Function x) Function(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(Function x) Function(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(Function x) Function(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int y, [core.List<core.int> x]) Function(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, [core.List<core.int> x]) Function(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int y, [core.List<core.int> x])
-        Function(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function([int x1]) Function(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([int x1]) Function(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is core.List<core.int> Function([int x1]) Function(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function({List<Function> x}) Function(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function({List<Function> x}) Function(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function({List<Function> x})
-        Function(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function() Function(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function() Function(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function() Function(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-  }
-
-  /// List<T> Function(int x1, [List<Function> x]) Function(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, [List<Function> x]) Function(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(
-        m14 is List<T> Function(int x1, [List<Function> x]) Function(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function([List<T> x1]) Function(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([List<T> x1]) Function(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function([List<T> x1]) Function(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x, [Function x1]) Function(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x, [Function x1]) Function(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x, [Function x1]) Function(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int y, {core.List<core.int> x}) Function(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int y, {core.List<core.int> x}) Function(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(
-        m17 is Function(int y, {core.List<core.int> x}) Function(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function([Function x]) Function(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function([Function x]) Function(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function([Function x]) Function(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(core.List<core.int> x1) Function(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(core.List<core.int> x1) Function(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(core.List<core.int> x1) Function(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(A x) Function(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(A x) Function(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is int Function<A>(A x) Function(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(List<A> x) Function(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(List<A> x) Function(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(
-        m21 is core.List<core.int> Function<A>(List<A> x) Function(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// List<A> Function<A>(int x) Function(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(int x) Function(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is List<A> Function<A>(int x) Function(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U57().runTests();
-  new U57<int>(tIsInt: true).runTests();
-  new U57<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type58_test.dart b/tests/language_2/function_type/function_type58_test.dart
deleted file mode 100644
index afcd6ff805a..00000000000
--- a/tests/language_2/function_type/function_type58_test.dart
+++ /dev/null
@@ -1,880 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(int x0, [int x]);
-typedef F1<T> = List<Function> Function(int x0, [List<T> x]);
-typedef F2<T> = List<T> Function([core.List<core.int> x]);
-typedef F3<T> = void Function(List<Function> x);
-typedef F4<T> = void Function<A>(List<Function> x);
-typedef F5<T> = int Function([List<Function> x]) Function<B extends core.int>();
-typedef F6<T> = int Function(List<T> x1) Function<B extends core.int>();
-typedef F7<T> = Function Function(int x2, [Function x3])
-    Function<B extends core.int>();
-typedef F8<T> = Function Function(int x1, {core.List<core.int> x})
-    Function<B extends core.int>();
-typedef F9<T> = List<Function> Function(Function x)
-    Function<B extends core.int>();
-typedef F10<T> = List<Function> Function(int y, [core.List<core.int> x])
-    Function<B extends core.int>();
-typedef F11<T> = core.List<core.int> Function([int x1])
-    Function<B extends core.int>();
-typedef F12<T> = core.List<core.int> Function({List<Function> x})
-    Function<B extends core.int>();
-typedef F13<T> = core.List<core.int> Function() Function<B extends core.int>();
-typedef F14<T> = List<T> Function(int x1, [List<Function> x])
-    Function<B extends core.int>();
-typedef F15<T> = List<T> Function([List<T> x1]) Function<B extends core.int>();
-typedef F16<T> = Function(int x, [Function x1]) Function<B extends core.int>();
-typedef F17<T> = Function(int y, {core.List<core.int> x})
-    Function<B extends core.int>();
-typedef F18<T> = void Function([Function x]) Function<B extends core.int>();
-typedef F19<T> = void Function(core.List<core.int> x1)
-    Function<B extends core.int>();
-typedef F20<T> = int Function<A>(A x) Function<B extends core.int>();
-typedef F21<T> = core.List<core.int> Function<A>(List<A> x)
-    Function<B extends core.int>();
-typedef F22<T> = List<A> Function<A>(int x) Function<B extends core.int>();
-
-Function f0(int x0, [int x]) => null;
-List<Function> f1(int x0, [List<int> x]) => null;
-List<int> f2([core.List<core.int> x]) => null;
-void f3(List<Function> x) => null;
-void f4<A>(List<Function> x) => null;
-int Function([List<Function> x]) f5<B extends core.int>() => null;
-int Function(List<int> x0) f6<B extends core.int>() => null;
-Function Function(int x0, [Function x1]) f7<B extends core.int>() => null;
-Function Function(int x0, {core.List<core.int> x}) f8<B extends core.int>() =>
-    null;
-List<Function> Function(Function x) f9<B extends core.int>() => null;
-List<Function> Function(int y, [core.List<core.int> x])
-    f10<B extends core.int>() => null;
-core.List<core.int> Function([int x0]) f11<B extends core.int>() => null;
-core.List<core.int> Function({List<Function> x}) f12<B extends core.int>() =>
-    null;
-core.List<core.int> Function() f13<B extends core.int>() => null;
-List<int> Function(int x0, [List<Function> x]) f14<B extends core.int>() =>
-    null;
-List<int> Function([List<int> x0]) f15<B extends core.int>() => null;
-Function(int x, [Function x0]) f16<B extends core.int>() => null;
-Function(int y, {core.List<core.int> x}) f17<B extends core.int>() => null;
-void Function([Function x]) f18<B extends core.int>() => null;
-void Function(core.List<core.int> x0) f19<B extends core.int>() => null;
-int Function<A>(A x) f20<B extends core.int>() => null;
-core.List<core.int> Function<A>(List<A> x) f21<B extends core.int>() => null;
-List<A> Function<A>(int x) f22<B extends core.int>() => null;
-
-class U58<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(int x0, [int x]) x0;
-  List<Function> Function(int x0, [List<T> x]) x1;
-  List<T> Function([core.List<core.int> x]) x2;
-  void Function(List<Function> x) x3;
-  void Function<A>(List<Function> x) x4;
-  int Function([List<Function> x]) Function<B extends core.int>() x5;
-  int Function(List<T> x1) Function<B extends core.int>() x6;
-  Function Function(int x2, [Function x3]) Function<B extends core.int>() x7;
-  Function Function(int x1, {core.List<core.int> x})
-      Function<B extends core.int>() x8;
-  List<Function> Function(Function x) Function<B extends core.int>() x9;
-  List<Function> Function(int y, [core.List<core.int> x])
-      Function<B extends core.int>() x10;
-  core.List<core.int> Function([int x1]) Function<B extends core.int>() x11;
-  core.List<core.int> Function({List<Function> x})
-      Function<B extends core.int>() x12;
-  core.List<core.int> Function() Function<B extends core.int>() x13;
-  List<T> Function(int x1, [List<Function> x]) Function<B extends core.int>()
-      x14;
-  List<T> Function([List<T> x1]) Function<B extends core.int>() x15;
-  Function(int x, [Function x1]) Function<B extends core.int>() x16;
-  Function(int y, {core.List<core.int> x}) Function<B extends core.int>() x17;
-  void Function([Function x]) Function<B extends core.int>() x18;
-  void Function(core.List<core.int> x1) Function<B extends core.int>() x19;
-  int Function<A>(A x) Function<B extends core.int>() x20;
-  core.List<core.int> Function<A>(List<A> x) Function<B extends core.int>() x21;
-  List<A> Function<A>(int x) Function<B extends core.int>() x22;
-
-  U58({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(int x0, [int x]) => null;
-  List<Function> m1(int x0, [List<T> x]) => null;
-  List<T> m2([core.List<core.int> x]) => null;
-  void m3(List<Function> x) => null;
-  void m4<A>(List<Function> x) => null;
-  int Function([List<Function> x]) m5<B extends core.int>() => null;
-  int Function(List<T> x0) m6<B extends core.int>() => null;
-  Function Function(int x0, [Function x1]) m7<B extends core.int>() => null;
-  Function Function(int x0, {core.List<core.int> x}) m8<B extends core.int>() =>
-      null;
-  List<Function> Function(Function x) m9<B extends core.int>() => null;
-  List<Function> Function(int y, [core.List<core.int> x])
-      m10<B extends core.int>() => null;
-  core.List<core.int> Function([int x0]) m11<B extends core.int>() => null;
-  core.List<core.int> Function({List<Function> x}) m12<B extends core.int>() =>
-      null;
-  core.List<core.int> Function() m13<B extends core.int>() => null;
-  List<T> Function(int x0, [List<Function> x]) m14<B extends core.int>() =>
-      null;
-  List<T> Function([List<T> x0]) m15<B extends core.int>() => null;
-  Function(int x, [Function x0]) m16<B extends core.int>() => null;
-  Function(int y, {core.List<core.int> x}) m17<B extends core.int>() => null;
-  void Function([Function x]) m18<B extends core.int>() => null;
-  void Function(core.List<core.int> x0) m19<B extends core.int>() => null;
-  int Function<A>(A x) m20<B extends core.int>() => null;
-  core.List<core.int> Function<A>(List<A> x) m21<B extends core.int>() => null;
-  List<A> Function<A>(int x) m22<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(int x0, [int x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x0, [int x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(int x0, [int x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(int x0, [List<T> x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x0, [List<T> x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(int x0, [List<T> x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-    // The static function has its T always set to int.
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isFalse(f1 is F1<bool>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    Expect.isFalse(confuse(f1) is F1<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        x1 = confuse(f1);
-      });
-      Expect.throws(() {
-        l1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        l1 = confuse(f1);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m1 is F1<int>);
-      Expect.equals(true, m1 is F1<bool>);
-      Expect.equals(true, confuse(m1) is F1<int>);
-      Expect.equals(true, confuse(m1) is F1<bool>);
-    }
-  }
-
-  /// List<T> Function([core.List<core.int> x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([core.List<core.int> x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function([core.List<core.int> x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(List<Function> x)
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(List<Function> x) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(List<Function> x));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// void Function<A>(List<Function> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(List<Function> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is void Function<A>(List<Function> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function([List<Function> x]) Function<B extends core.int>()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function([List<Function> x]) Function<B extends core.int>() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(
-        m5 is int Function([List<Function> x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(List<T> x1) Function<B extends core.int>()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(List<T> x1) Function<B extends core.int>() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is int Function(List<T> x1) Function<B extends core.int>());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(int x2, [Function x3]) Function<B extends core.int>()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x2, [Function x3]) Function<B extends core.int>() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x2, [Function x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x1, {core.List<core.int> x}) Function<B extends core.int>()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, {core.List<core.int> x})
-        Function<B extends core.int>() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x1, {core.List<core.int> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(Function x) Function<B extends core.int>()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(Function x) Function<B extends core.int>() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(Function x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int y, [core.List<core.int> x]) Function<B extends core.int>()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, [core.List<core.int> x])
-        Function<B extends core.int>() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int y, [core.List<core.int> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function([int x1]) Function<B extends core.int>()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([int x1]) Function<B extends core.int>() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function([int x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function({List<Function> x}) Function<B extends core.int>()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function({List<Function> x})
-        Function<B extends core.int>() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function({List<Function> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function() Function<B extends core.int>()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function() Function<B extends core.int>() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(
-        m13 is core.List<core.int> Function() Function<B extends core.int>());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-  }
-
-  /// List<T> Function(int x1, [List<Function> x]) Function<B extends core.int>()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, [List<Function> x]) Function<B extends core.int>()
-        l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int x1, [List<Function> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function([List<T> x1]) Function<B extends core.int>()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([List<T> x1]) Function<B extends core.int>() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(
-        m15 is List<T> Function([List<T> x1]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x, [Function x1]) Function<B extends core.int>()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x, [Function x1]) Function<B extends core.int>() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function(int x, [Function x1]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int y, {core.List<core.int> x}) Function<B extends core.int>()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int y, {core.List<core.int> x}) Function<B extends core.int>() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int y, {core.List<core.int> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function([Function x]) Function<B extends core.int>()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function([Function x]) Function<B extends core.int>() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(
-        m18 is void Function([Function x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(core.List<core.int> x1) Function<B extends core.int>()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(core.List<core.int> x1) Function<B extends core.int>() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(core.List<core.int> x1)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(A x) Function<B extends core.int>()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(A x) Function<B extends core.int>() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is int Function<A>(A x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(List<A> x) Function<B extends core.int>()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(List<A> x) Function<B extends core.int>()
-        l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is core.List<core.int> Function<A>(List<A> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// List<A> Function<A>(int x) Function<B extends core.int>()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(int x) Function<B extends core.int>() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(
-        m22 is List<A> Function<A>(int x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U58().runTests();
-  new U58<int>(tIsInt: true).runTests();
-  new U58<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type59_test.dart b/tests/language_2/function_type/function_type59_test.dart
deleted file mode 100644
index c92f6126e22..00000000000
--- a/tests/language_2/function_type/function_type59_test.dart
+++ /dev/null
@@ -1,903 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(int y, [int x]);
-typedef F1<T> = List<Function> Function(int y, [List<T> x]);
-typedef F2<T> = List<T> Function(int x0, [core.List<core.int> x]);
-typedef F3<T> = void Function([List<Function> x]);
-typedef F4<T> = void Function<A>(core.List<core.int> x);
-typedef F5<T> = int Function([List<Function> x]) Function<B extends core.int>(
-    int x);
-typedef F6<T> = int Function(List<T> x1) Function<B extends core.int>(int x);
-typedef F7<T> = Function Function(int x2, [Function x3])
-    Function<B extends core.int>(int x);
-typedef F8<T> = Function Function(int x1, {core.List<core.int> x})
-    Function<B extends core.int>(int x);
-typedef F9<T> = List<Function> Function(Function x)
-    Function<B extends core.int>(int x);
-typedef F10<T> = List<Function> Function(int y, [core.List<core.int> x])
-    Function<B extends core.int>(int x);
-typedef F11<T> = core.List<core.int> Function([int x1])
-    Function<B extends core.int>(int x);
-typedef F12<T> = core.List<core.int> Function({List<Function> x})
-    Function<B extends core.int>(int x);
-typedef F13<T> = core.List<core.int> Function() Function<B extends core.int>(
-    int x);
-typedef F14<T> = List<T> Function(int x1, [List<Function> x])
-    Function<B extends core.int>(int x);
-typedef F15<T> = List<T> Function([List<T> x1]) Function<B extends core.int>(
-    int x);
-typedef F16<T> = Function(int x, [Function x1]) Function<B extends core.int>(
-    int x);
-typedef F17<T> = Function(int y, {core.List<core.int> x})
-    Function<B extends core.int>(int x);
-typedef F18<T> = void Function([Function x]) Function<B extends core.int>(
-    int x);
-typedef F19<T> = void Function(core.List<core.int> x1)
-    Function<B extends core.int>(int x);
-typedef F20<T> = int Function<A>(A x) Function<B extends core.int>(int x);
-typedef F21<T> = core.List<core.int> Function<A>(List<A> x)
-    Function<B extends core.int>(int x);
-typedef F22<T> = List<A> Function<A>(int x) Function<B extends core.int>(int x);
-
-Function f0(int y, [int x]) => null;
-List<Function> f1(int y, [List<int> x]) => null;
-List<int> f2(int x0, [core.List<core.int> x]) => null;
-void f3([List<Function> x]) => null;
-void f4<A>(core.List<core.int> x) => null;
-int Function([List<Function> x]) f5<B extends core.int>(int x) => null;
-int Function(List<int> x0) f6<B extends core.int>(int x) => null;
-Function Function(int x0, [Function x1]) f7<B extends core.int>(int x) => null;
-Function Function(int x0, {core.List<core.int> x}) f8<B extends core.int>(
-        int x) =>
-    null;
-List<Function> Function(Function x) f9<B extends core.int>(int x) => null;
-List<Function> Function(int y, [core.List<core.int> x]) f10<B extends core.int>(
-        int x) =>
-    null;
-core.List<core.int> Function([int x0]) f11<B extends core.int>(int x) => null;
-core.List<core.int> Function({List<Function> x}) f12<B extends core.int>(
-        int x) =>
-    null;
-core.List<core.int> Function() f13<B extends core.int>(int x) => null;
-List<int> Function(int x0, [List<Function> x]) f14<B extends core.int>(int x) =>
-    null;
-List<int> Function([List<int> x0]) f15<B extends core.int>(int x) => null;
-Function(int x, [Function x0]) f16<B extends core.int>(int x) => null;
-Function(int y, {core.List<core.int> x}) f17<B extends core.int>(int x) => null;
-void Function([Function x]) f18<B extends core.int>(int x) => null;
-void Function(core.List<core.int> x0) f19<B extends core.int>(int x) => null;
-int Function<A>(A x) f20<B extends core.int>(int x) => null;
-core.List<core.int> Function<A>(List<A> x) f21<B extends core.int>(int x) =>
-    null;
-List<A> Function<A>(int x) f22<B extends core.int>(int x) => null;
-
-class U59<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(int y, [int x]) x0;
-  List<Function> Function(int y, [List<T> x]) x1;
-  List<T> Function(int x0, [core.List<core.int> x]) x2;
-  void Function([List<Function> x]) x3;
-  void Function<A>(core.List<core.int> x) x4;
-  int Function([List<Function> x]) Function<B extends core.int>(int x) x5;
-  int Function(List<T> x1) Function<B extends core.int>(int x) x6;
-  Function Function(int x2, [Function x3]) Function<B extends core.int>(int x)
-      x7;
-  Function Function(int x1, {core.List<core.int> x})
-      Function<B extends core.int>(int x) x8;
-  List<Function> Function(Function x) Function<B extends core.int>(int x) x9;
-  List<Function> Function(int y, [core.List<core.int> x])
-      Function<B extends core.int>(int x) x10;
-  core.List<core.int> Function([int x1]) Function<B extends core.int>(int x)
-      x11;
-  core.List<core.int> Function({List<Function> x}) Function<B extends core.int>(
-      int x) x12;
-  core.List<core.int> Function() Function<B extends core.int>(int x) x13;
-  List<T> Function(int x1, [List<Function> x]) Function<B extends core.int>(
-      int x) x14;
-  List<T> Function([List<T> x1]) Function<B extends core.int>(int x) x15;
-  Function(int x, [Function x1]) Function<B extends core.int>(int x) x16;
-  Function(int y, {core.List<core.int> x}) Function<B extends core.int>(int x)
-      x17;
-  void Function([Function x]) Function<B extends core.int>(int x) x18;
-  void Function(core.List<core.int> x1) Function<B extends core.int>(int x) x19;
-  int Function<A>(A x) Function<B extends core.int>(int x) x20;
-  core.List<core.int> Function<A>(List<A> x) Function<B extends core.int>(int x)
-      x21;
-  List<A> Function<A>(int x) Function<B extends core.int>(int x) x22;
-
-  U59({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(int y, [int x]) => null;
-  List<Function> m1(int y, [List<T> x]) => null;
-  List<T> m2(int x0, [core.List<core.int> x]) => null;
-  void m3([List<Function> x]) => null;
-  void m4<A>(core.List<core.int> x) => null;
-  int Function([List<Function> x]) m5<B extends core.int>(int x) => null;
-  int Function(List<T> x0) m6<B extends core.int>(int x) => null;
-  Function Function(int x0, [Function x1]) m7<B extends core.int>(int x) =>
-      null;
-  Function Function(int x0, {core.List<core.int> x}) m8<B extends core.int>(
-          int x) =>
-      null;
-  List<Function> Function(Function x) m9<B extends core.int>(int x) => null;
-  List<Function> Function(int y, [core.List<core.int> x])
-      m10<B extends core.int>(int x) => null;
-  core.List<core.int> Function([int x0]) m11<B extends core.int>(int x) => null;
-  core.List<core.int> Function({List<Function> x}) m12<B extends core.int>(
-          int x) =>
-      null;
-  core.List<core.int> Function() m13<B extends core.int>(int x) => null;
-  List<T> Function(int x0, [List<Function> x]) m14<B extends core.int>(int x) =>
-      null;
-  List<T> Function([List<T> x0]) m15<B extends core.int>(int x) => null;
-  Function(int x, [Function x0]) m16<B extends core.int>(int x) => null;
-  Function(int y, {core.List<core.int> x}) m17<B extends core.int>(int x) =>
-      null;
-  void Function([Function x]) m18<B extends core.int>(int x) => null;
-  void Function(core.List<core.int> x0) m19<B extends core.int>(int x) => null;
-  int Function<A>(A x) m20<B extends core.int>(int x) => null;
-  core.List<core.int> Function<A>(List<A> x) m21<B extends core.int>(int x) =>
-      null;
-  List<A> Function<A>(int x) m22<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(int y, [int x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, [int x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(int y, [int x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(int y, [List<T> x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, [List<T> x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(int y, [List<T> x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-    // The static function has its T always set to int.
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isFalse(f1 is F1<bool>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    Expect.isFalse(confuse(f1) is F1<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        x1 = confuse(f1);
-      });
-      Expect.throws(() {
-        l1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        l1 = confuse(f1);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m1 is F1<int>);
-      Expect.equals(true, m1 is F1<bool>);
-      Expect.equals(true, confuse(m1) is F1<int>);
-      Expect.equals(true, confuse(m1) is F1<bool>);
-    }
-  }
-
-  /// List<T> Function(int x0, [core.List<core.int> x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x0, [core.List<core.int> x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int x0, [core.List<core.int> x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function([List<Function> x])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function([List<Function> x]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function([List<Function> x]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// void Function<A>(core.List<core.int> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(core.List<core.int> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is void Function<A>(core.List<core.int> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function([List<Function> x]) Function<B extends core.int>(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function([List<Function> x]) Function<B extends core.int>(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function([List<Function> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(List<T> x1) Function<B extends core.int>(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(List<T> x1) Function<B extends core.int>(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is int Function(List<T> x1) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(int x2, [Function x3]) Function<B extends core.int>(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x2, [Function x3]) Function<B extends core.int>(int x)
-        l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x2, [Function x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x1, {core.List<core.int> x}) Function<B extends core.int>(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, {core.List<core.int> x})
-        Function<B extends core.int>(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x1, {core.List<core.int> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function(Function x) Function<B extends core.int>(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(Function x) Function<B extends core.int>(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(Function x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int y, [core.List<core.int> x]) Function<B extends core.int>(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, [core.List<core.int> x])
-        Function<B extends core.int>(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int y, [core.List<core.int> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function([int x1]) Function<B extends core.int>(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([int x1]) Function<B extends core.int>(int x)
-        l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function([int x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function({List<Function> x}) Function<B extends core.int>(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function({List<Function> x})
-        Function<B extends core.int>(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function({List<Function> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function() Function<B extends core.int>(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function() Function<B extends core.int>(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function()
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-  }
-
-  /// List<T> Function(int x1, [List<Function> x]) Function<B extends core.int>(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, [List<Function> x]) Function<B extends core.int>(
-        int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int x1, [List<Function> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function([List<T> x1]) Function<B extends core.int>(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([List<T> x1]) Function<B extends core.int>(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function([List<T> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x, [Function x1]) Function<B extends core.int>(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x, [Function x1]) Function<B extends core.int>(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x, [Function x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int y, {core.List<core.int> x}) Function<B extends core.int>(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int y, {core.List<core.int> x}) Function<B extends core.int>(int x)
-        l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int y, {core.List<core.int> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function([Function x]) Function<B extends core.int>(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function([Function x]) Function<B extends core.int>(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(
-        m18 is void Function([Function x]) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(core.List<core.int> x1) Function<B extends core.int>(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(core.List<core.int> x1) Function<B extends core.int>(int x)
-        l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(core.List<core.int> x1)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(A x) Function<B extends core.int>(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(A x) Function<B extends core.int>(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(
-        m20 is int Function<A>(A x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// core.List<core.int> Function<A>(List<A> x) Function<B extends core.int>(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function<A>(List<A> x) Function<B extends core.int>(
-        int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is core.List<core.int> Function<A>(List<A> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// List<A> Function<A>(int x) Function<B extends core.int>(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(int x) Function<B extends core.int>(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(
-        m22 is List<A> Function<A>(int x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U59().runTests();
-  new U59<int>(tIsInt: true).runTests();
-  new U59<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type5_test.dart b/tests/language_2/function_type/function_type5_test.dart
deleted file mode 100644
index ef9245a458f..00000000000
--- a/tests/language_2/function_type/function_type5_test.dart
+++ /dev/null
@@ -1,931 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function([int x1]);
-typedef F1<T> = Function Function([List<T> x1]);
-typedef F2<T> = core.List<core.int> Function(core.List<core.int> x0);
-typedef F3<T> = Function(int y, [List<Function> x]);
-typedef F4<T> = Function Function<A>();
-typedef F5<T> = int Function(int y, {int x}) Function(int x);
-typedef F6<T> = int Function(int x1, [core.List<core.int> x]) Function(int x);
-typedef F7<T> = Function Function(int x1) Function(int x);
-typedef F8<T> = Function Function(int x, [List<Function> x1]) Function(int x);
-typedef F9<T> = Function Function(int y, {List<T> x}) Function(int x);
-typedef F10<T> = List<Function> Function([List<Function> x]) Function(int x);
-typedef F11<T> = List<Function> Function(List<T> x1) Function(int x);
-typedef F12<T> = core.List<core.int> Function(int x2, [Function x3]) Function(
-    int x);
-typedef F13<T> = core.List<core.int> Function(int x1, {core.List<core.int> x})
-    Function(int x);
-typedef F14<T> = List<T> Function(Function x) Function(int x);
-typedef F15<T> = List<T> Function(int y, [core.List<core.int> x]) Function(
-    int x);
-typedef F16<T> = Function([int x1]) Function(int x);
-typedef F17<T> = Function({List<Function> x}) Function(int x);
-typedef F18<T> = Function() Function(int x);
-typedef F19<T> = void Function(int x1, [List<Function> x]) Function(int x);
-typedef F20<T> = void Function([List<T> x1]) Function(int x);
-typedef F21<T> = List<Function> Function<A>(List<Function> x) Function(int x);
-typedef F22<T> = Function<A>(core.List<core.int> x) Function(int x);
-typedef F23<T> = void Function<A>(List<T> x) Function(int x);
-
-int f0([int x0]) => null;
-Function f1([List<int> x0]) => null;
-core.List<core.int> f2(core.List<core.int> x0) => null;
-f3(int y, [List<Function> x]) => null;
-Function f4<A>() => null;
-int Function(int y, {int x}) f5(int x) => null;
-int Function(int x0, [core.List<core.int> x]) f6(int x) => null;
-Function Function(int x0) f7(int x) => null;
-Function Function(int x, [List<Function> x0]) f8(int x) => null;
-Function Function(int y, {List<int> x}) f9(int x) => null;
-List<Function> Function([List<Function> x]) f10(int x) => null;
-List<Function> Function(List<int> x0) f11(int x) => null;
-core.List<core.int> Function(int x0, [Function x1]) f12(int x) => null;
-core.List<core.int> Function(int x0, {core.List<core.int> x}) f13(int x) =>
-    null;
-List<int> Function(Function x) f14(int x) => null;
-List<int> Function(int y, [core.List<core.int> x]) f15(int x) => null;
-Function([int x0]) f16(int x) => null;
-Function({List<Function> x}) f17(int x) => null;
-Function() f18(int x) => null;
-void Function(int x0, [List<Function> x]) f19(int x) => null;
-void Function([List<int> x0]) f20(int x) => null;
-List<Function> Function<A>(List<Function> x) f21(int x) => null;
-Function<A>(core.List<core.int> x) f22(int x) => null;
-void Function<A>(List<int> x) f23(int x) => null;
-
-class U5<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function([int x1]) x0;
-  Function Function([List<T> x1]) x1;
-  core.List<core.int> Function(core.List<core.int> x0) x2;
-  Function(int y, [List<Function> x]) x3;
-  Function Function<A>() x4;
-  int Function(int y, {int x}) Function(int x) x5;
-  int Function(int x1, [core.List<core.int> x]) Function(int x) x6;
-  Function Function(int x1) Function(int x) x7;
-  Function Function(int x, [List<Function> x1]) Function(int x) x8;
-  Function Function(int y, {List<T> x}) Function(int x) x9;
-  List<Function> Function([List<Function> x]) Function(int x) x10;
-  List<Function> Function(List<T> x1) Function(int x) x11;
-  core.List<core.int> Function(int x2, [Function x3]) Function(int x) x12;
-  core.List<core.int> Function(int x1, {core.List<core.int> x}) Function(int x)
-      x13;
-  List<T> Function(Function x) Function(int x) x14;
-  List<T> Function(int y, [core.List<core.int> x]) Function(int x) x15;
-  Function([int x1]) Function(int x) x16;
-  Function({List<Function> x}) Function(int x) x17;
-  Function() Function(int x) x18;
-  void Function(int x1, [List<Function> x]) Function(int x) x19;
-  void Function([List<T> x1]) Function(int x) x20;
-  List<Function> Function<A>(List<Function> x) Function(int x) x21;
-  Function<A>(core.List<core.int> x) Function(int x) x22;
-  void Function<A>(List<T> x) Function(int x) x23;
-
-  U5({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0([int x0]) => null;
-  Function m1([List<T> x0]) => null;
-  core.List<core.int> m2(core.List<core.int> x0) => null;
-  m3(int y, [List<Function> x]) => null;
-  Function m4<A>() => null;
-  int Function(int y, {int x}) m5(int x) => null;
-  int Function(int x0, [core.List<core.int> x]) m6(int x) => null;
-  Function Function(int x0) m7(int x) => null;
-  Function Function(int x, [List<Function> x0]) m8(int x) => null;
-  Function Function(int y, {List<T> x}) m9(int x) => null;
-  List<Function> Function([List<Function> x]) m10(int x) => null;
-  List<Function> Function(List<T> x0) m11(int x) => null;
-  core.List<core.int> Function(int x0, [Function x1]) m12(int x) => null;
-  core.List<core.int> Function(int x0, {core.List<core.int> x}) m13(int x) =>
-      null;
-  List<T> Function(Function x) m14(int x) => null;
-  List<T> Function(int y, [core.List<core.int> x]) m15(int x) => null;
-  Function([int x0]) m16(int x) => null;
-  Function({List<Function> x}) m17(int x) => null;
-  Function() m18(int x) => null;
-  void Function(int x0, [List<Function> x]) m19(int x) => null;
-  void Function([List<T> x0]) m20(int x) => null;
-  List<Function> Function<A>(List<Function> x) m21(int x) => null;
-  Function<A>(core.List<core.int> x) m22(int x) => null;
-  void Function<A>(List<T> x) m23(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function([int x1])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function([int x1]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function([int x1]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// Function Function([List<T> x1])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    Function Function([List<T> x1]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is Function Function([List<T> x1]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-    // The static function has its T always set to int.
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isFalse(f1 is F1<bool>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    Expect.isFalse(confuse(f1) is F1<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        x1 = confuse(f1);
-      });
-      Expect.throws(() {
-        l1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        l1 = confuse(f1);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m1 is F1<int>);
-      Expect.equals(true, m1 is F1<bool>);
-      Expect.equals(true, confuse(m1) is F1<int>);
-      Expect.equals(true, confuse(m1) is F1<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(core.List<core.int> x0)
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(core.List<core.int> x0) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is core.List<core.int> Function(core.List<core.int> x0));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// Function(int y, [List<Function> x])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function(int y, [List<Function> x]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function(int y, [List<Function> x]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// Function Function<A>()
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>() l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is Function Function<A>());
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int y, {int x}) Function(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, {int x}) Function(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int y, {int x}) Function(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x1, [core.List<core.int> x]) Function(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, [core.List<core.int> x]) Function(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is int Function(int x1, [core.List<core.int> x]) Function(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int x1) Function(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1) Function(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x1) Function(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x, [List<Function> x1]) Function(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x, [List<Function> x1]) Function(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(
-        m8 is Function Function(int x, [List<Function> x1]) Function(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// Function Function(int y, {List<T> x}) Function(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, {List<T> x}) Function(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is Function Function(int y, {List<T> x}) Function(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-    // The static function has its T always set to int.
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isFalse(f9 is F9<bool>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    Expect.isFalse(confuse(f9) is F9<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x9 = (f9 as dynamic);
-      });
-      Expect.throws(() {
-        x9 = confuse(f9);
-      });
-      Expect.throws(() {
-        l9 = (f9 as dynamic);
-      });
-      Expect.throws(() {
-        l9 = confuse(f9);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m9 is F9<int>);
-      Expect.equals(tIsBool, m9 is F9<bool>);
-      Expect.equals(tIsInt, confuse(m9) is F9<int>);
-      Expect.equals(tIsBool, confuse(m9) is F9<bool>);
-    }
-  }
-
-  /// List<Function> Function([List<Function> x]) Function(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([List<Function> x]) Function(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(
-        m10 is List<Function> Function([List<Function> x]) Function(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function(List<T> x1) Function(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(List<T> x1) Function(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is List<Function> Function(List<T> x1) Function(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int x2, [Function x3]) Function(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x2, [Function x3]) Function(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x2, [Function x3])
-        Function(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int x1, {core.List<core.int> x}) Function(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, {core.List<core.int> x}) Function(
-        int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(int x1,
-            {core.List<core.int> x})
-        Function(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-  }
-
-  /// List<T> Function(Function x) Function(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(Function x) Function(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(Function x) Function(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, [core.List<core.int> x]) Function(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, [core.List<core.int> x]) Function(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int y, [core.List<core.int> x])
-        Function(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function([int x1]) Function(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function([int x1]) Function(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function([int x1]) Function(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function({List<Function> x}) Function(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function({List<Function> x}) Function(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function({List<Function> x}) Function(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// Function() Function(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    Function() Function(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is Function() Function(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x1, [List<Function> x]) Function(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, [List<Function> x]) Function(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(
-        m19 is void Function(int x1, [List<Function> x]) Function(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function([List<T> x1]) Function(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function([List<T> x1]) Function(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is void Function([List<T> x1]) Function(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(List<Function> x) Function(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(List<Function> x) Function(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(
-        m21 is List<Function> Function<A>(List<Function> x) Function(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// Function<A>(core.List<core.int> x) Function(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    Function<A>(core.List<core.int> x) Function(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is Function<A>(core.List<core.int> x) Function(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// void Function<A>(List<T> x) Function(int x)
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(List<T> x) Function(int x) l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is void Function<A>(List<T> x) Function(int x));
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-    // The static function has its T always set to int.
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isFalse(f23 is F23<bool>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    Expect.isFalse(confuse(f23) is F23<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x23 = (f23 as dynamic);
-      });
-      Expect.throws(() {
-        x23 = confuse(f23);
-      });
-      Expect.throws(() {
-        l23 = (f23 as dynamic);
-      });
-      Expect.throws(() {
-        l23 = confuse(f23);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m23 is F23<int>);
-      Expect.equals(tIsBool, m23 is F23<bool>);
-      Expect.equals(tIsInt, confuse(m23) is F23<int>);
-      Expect.equals(tIsBool, confuse(m23) is F23<bool>);
-    }
-  }
-}
-
-void main() {
-  new U5().runTests();
-  new U5<int>(tIsInt: true).runTests();
-  new U5<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type60_test.dart b/tests/language_2/function_type/function_type60_test.dart
deleted file mode 100644
index 0f85e50ab70..00000000000
--- a/tests/language_2/function_type/function_type60_test.dart
+++ /dev/null
@@ -1,942 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(int x0);
-typedef F1<T> = List<Function> Function(List<T> x0);
-typedef F2<T> = List<T> Function(int y, [core.List<core.int> x]);
-typedef F3<T> = void Function(int x0, [List<Function> x]);
-typedef F4<T> = void Function<A>(List<T> x);
-typedef F5<T> = int Function(int x0, [List<Function> x]) Function();
-typedef F6<T> = int Function([List<T> x1]) Function();
-typedef F7<T> = Function Function(int x, [Function x2]) Function();
-typedef F8<T> = Function Function(int y, {core.List<core.int> x}) Function();
-typedef F9<T> = List<Function> Function([Function x]) Function();
-typedef F10<T> = List<Function> Function(core.List<core.int> x0) Function();
-typedef F11<T> = core.List<core.int> Function(int x1, [int x2]) Function();
-typedef F12<T> = core.List<core.int> Function(int x0, {List<Function> x})
-    Function();
-typedef F13<T> = List<T> Function(int x) Function();
-typedef F14<T> = List<T> Function(int y, [List<Function> x]) Function();
-typedef F15<T> = List<T> Function(int x1, [List<T> x2]) Function();
-typedef F16<T> = Function({Function x}) Function();
-typedef F17<T> = Function(List<T> x) Function();
-typedef F18<T> = void Function(int x0, [Function x]) Function();
-typedef F19<T> = void Function([core.List<core.int> x1]) Function();
-typedef F20<T> = int Function<A>(List<A> x) Function();
-typedef F21<T> = List<T> Function<A>(int x) Function();
-typedef F22<T> = List<A> Function<A>(Function x) Function();
-
-Function f0(int x0) => null;
-List<Function> f1(List<int> x0) => null;
-List<int> f2(int y, [core.List<core.int> x]) => null;
-void f3(int x0, [List<Function> x]) => null;
-void f4<A>(List<int> x) => null;
-int Function(int x0, [List<Function> x]) f5() => null;
-int Function([List<int> x0]) f6() => null;
-Function Function(int x, [Function x0]) f7() => null;
-Function Function(int y, {core.List<core.int> x}) f8() => null;
-List<Function> Function([Function x]) f9() => null;
-List<Function> Function(core.List<core.int> x0) f10() => null;
-core.List<core.int> Function(int x0, [int x1]) f11() => null;
-core.List<core.int> Function(int x0, {List<Function> x}) f12() => null;
-List<int> Function(int x) f13() => null;
-List<int> Function(int y, [List<Function> x]) f14() => null;
-List<int> Function(int x0, [List<int> x1]) f15() => null;
-Function({Function x}) f16() => null;
-Function(List<int> x) f17() => null;
-void Function(int x0, [Function x]) f18() => null;
-void Function([core.List<core.int> x0]) f19() => null;
-int Function<A>(List<A> x) f20() => null;
-List<int> Function<A>(int x) f21() => null;
-List<A> Function<A>(Function x) f22() => null;
-
-class U60<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(int x0) x0;
-  List<Function> Function(List<T> x0) x1;
-  List<T> Function(int y, [core.List<core.int> x]) x2;
-  void Function(int x0, [List<Function> x]) x3;
-  void Function<A>(List<T> x) x4;
-  int Function(int x0, [List<Function> x]) Function() x5;
-  int Function([List<T> x1]) Function() x6;
-  Function Function(int x, [Function x2]) Function() x7;
-  Function Function(int y, {core.List<core.int> x}) Function() x8;
-  List<Function> Function([Function x]) Function() x9;
-  List<Function> Function(core.List<core.int> x0) Function() x10;
-  core.List<core.int> Function(int x1, [int x2]) Function() x11;
-  core.List<core.int> Function(int x0, {List<Function> x}) Function() x12;
-  List<T> Function(int x) Function() x13;
-  List<T> Function(int y, [List<Function> x]) Function() x14;
-  List<T> Function(int x1, [List<T> x2]) Function() x15;
-  Function({Function x}) Function() x16;
-  Function(List<T> x) Function() x17;
-  void Function(int x0, [Function x]) Function() x18;
-  void Function([core.List<core.int> x1]) Function() x19;
-  int Function<A>(List<A> x) Function() x20;
-  List<T> Function<A>(int x) Function() x21;
-  List<A> Function<A>(Function x) Function() x22;
-
-  U60({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(int x0) => null;
-  List<Function> m1(List<T> x0) => null;
-  List<T> m2(int y, [core.List<core.int> x]) => null;
-  void m3(int x0, [List<Function> x]) => null;
-  void m4<A>(List<T> x) => null;
-  int Function(int x0, [List<Function> x]) m5() => null;
-  int Function([List<T> x0]) m6() => null;
-  Function Function(int x, [Function x0]) m7() => null;
-  Function Function(int y, {core.List<core.int> x}) m8() => null;
-  List<Function> Function([Function x]) m9() => null;
-  List<Function> Function(core.List<core.int> x0) m10() => null;
-  core.List<core.int> Function(int x0, [int x1]) m11() => null;
-  core.List<core.int> Function(int x0, {List<Function> x}) m12() => null;
-  List<T> Function(int x) m13() => null;
-  List<T> Function(int y, [List<Function> x]) m14() => null;
-  List<T> Function(int x0, [List<T> x1]) m15() => null;
-  Function({Function x}) m16() => null;
-  Function(List<T> x) m17() => null;
-  void Function(int x0, [Function x]) m18() => null;
-  void Function([core.List<core.int> x0]) m19() => null;
-  int Function<A>(List<A> x) m20() => null;
-  List<T> Function<A>(int x) m21() => null;
-  List<A> Function<A>(Function x) m22() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(int x0)
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x0) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(int x0));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(List<T> x0)
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(List<T> x0) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(List<T> x0));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-    // The static function has its T always set to int.
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isFalse(f1 is F1<bool>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    Expect.isFalse(confuse(f1) is F1<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        x1 = confuse(f1);
-      });
-      Expect.throws(() {
-        l1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        l1 = confuse(f1);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m1 is F1<int>);
-      Expect.equals(true, m1 is F1<bool>);
-      Expect.equals(true, confuse(m1) is F1<int>);
-      Expect.equals(true, confuse(m1) is F1<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, [core.List<core.int> x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, [core.List<core.int> x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int y, [core.List<core.int> x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(int x0, [List<Function> x])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int x0, [List<Function> x]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int x0, [List<Function> x]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// void Function<A>(List<T> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(List<T> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is void Function<A>(List<T> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-    // The static function has its T always set to int.
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isFalse(f4 is F4<bool>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    Expect.isFalse(confuse(f4) is F4<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        x4 = confuse(f4);
-      });
-      Expect.throws(() {
-        l4 = (f4 as dynamic);
-      });
-      Expect.throws(() {
-        l4 = confuse(f4);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m4 is F4<int>);
-      Expect.equals(true, m4 is F4<bool>);
-      Expect.equals(true, confuse(m4) is F4<int>);
-      Expect.equals(true, confuse(m4) is F4<bool>);
-    }
-  }
-
-  /// int Function(int x0, [List<Function> x]) Function()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x0, [List<Function> x]) Function() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x0, [List<Function> x]) Function());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function([List<T> x1]) Function()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function([List<T> x1]) Function() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function([List<T> x1]) Function());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(int x, [Function x2]) Function()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x, [Function x2]) Function() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x, [Function x2]) Function());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int y, {core.List<core.int> x}) Function()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, {core.List<core.int> x}) Function() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(
-        m8 is Function Function(int y, {core.List<core.int> x}) Function());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function([Function x]) Function()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([Function x]) Function() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function([Function x]) Function());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(core.List<core.int> x0) Function()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(core.List<core.int> x0) Function() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(
-        m10 is List<Function> Function(core.List<core.int> x0) Function());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int x1, [int x2]) Function()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, [int x2]) Function() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is core.List<core.int> Function(int x1, [int x2]) Function());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x0, {List<Function> x}) Function()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x0, {List<Function> x}) Function() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12
-        is core.List<core.int> Function(int x0, {List<Function> x}) Function());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int x) Function()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x) Function() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function(int x) Function());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, [List<Function> x]) Function()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, [List<Function> x]) Function() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(
-        m14 is List<T> Function(int y, [List<Function> x]) Function());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x1, [List<T> x2]) Function()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, [List<T> x2]) Function() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x1, [List<T> x2]) Function());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function({Function x}) Function()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function({Function x}) Function() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function({Function x}) Function());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(List<T> x) Function()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(List<T> x) Function() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(List<T> x) Function());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(int x0, [Function x]) Function()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x0, [Function x]) Function() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x0, [Function x]) Function());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function([core.List<core.int> x1]) Function()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function([core.List<core.int> x1]) Function() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function([core.List<core.int> x1]) Function());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(List<A> x) Function()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(List<A> x) Function() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is int Function<A>(List<A> x) Function());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(int x) Function()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(int x) Function() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<T> Function<A>(int x) Function());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>(Function x) Function()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(Function x) Function() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is List<A> Function<A>(Function x) Function());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U60().runTests();
-  new U60<int>(tIsInt: true).runTests();
-  new U60<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type61_test.dart b/tests/language_2/function_type/function_type61_test.dart
deleted file mode 100644
index 319b52ef5d3..00000000000
--- a/tests/language_2/function_type/function_type61_test.dart
+++ /dev/null
@@ -1,925 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function([int x1]);
-typedef F1<T> = List<Function> Function([List<T> x1]);
-typedef F2<T> = List<T> Function(core.List<core.int> x0);
-typedef F3<T> = void Function(int y, [List<Function> x]);
-typedef F4<T> = void Function<A>();
-typedef F5<T> = int Function(int x1, [List<Function> x]) Function(int x);
-typedef F6<T> = int Function([List<T> x1]) Function(int x);
-typedef F7<T> = Function Function(int x, [Function x1]) Function(int x);
-typedef F8<T> = Function Function(int y, {core.List<core.int> x}) Function(
-    int x);
-typedef F9<T> = List<Function> Function([Function x]) Function(int x);
-typedef F10<T> = List<Function> Function(core.List<core.int> x1) Function(
-    int x);
-typedef F11<T> = core.List<core.int> Function(int x2, [int x3]) Function(int x);
-typedef F12<T> = core.List<core.int> Function(int x1, {List<Function> x})
-    Function(int x);
-typedef F13<T> = List<T> Function(int x) Function(int x);
-typedef F14<T> = List<T> Function(int y, [List<Function> x]) Function(int x);
-typedef F15<T> = List<T> Function(int x2, [List<T> x3]) Function(int x);
-typedef F16<T> = Function({Function x}) Function(int x);
-typedef F17<T> = Function(List<T> x) Function(int x);
-typedef F18<T> = void Function(int x1, [Function x]) Function(int x);
-typedef F19<T> = void Function([core.List<core.int> x1]) Function(int x);
-typedef F20<T> = int Function<A>(List<A> x) Function(int x);
-typedef F21<T> = List<T> Function<A>(int x) Function(int x);
-typedef F22<T> = List<A> Function<A>(Function x) Function(int x);
-
-Function f0([int x0]) => null;
-List<Function> f1([List<int> x0]) => null;
-List<int> f2(core.List<core.int> x0) => null;
-void f3(int y, [List<Function> x]) => null;
-void f4<A>() => null;
-int Function(int x0, [List<Function> x]) f5(int x) => null;
-int Function([List<int> x0]) f6(int x) => null;
-Function Function(int x, [Function x0]) f7(int x) => null;
-Function Function(int y, {core.List<core.int> x}) f8(int x) => null;
-List<Function> Function([Function x]) f9(int x) => null;
-List<Function> Function(core.List<core.int> x0) f10(int x) => null;
-core.List<core.int> Function(int x0, [int x1]) f11(int x) => null;
-core.List<core.int> Function(int x0, {List<Function> x}) f12(int x) => null;
-List<int> Function(int x) f13(int x) => null;
-List<int> Function(int y, [List<Function> x]) f14(int x) => null;
-List<int> Function(int x0, [List<int> x1]) f15(int x) => null;
-Function({Function x}) f16(int x) => null;
-Function(List<int> x) f17(int x) => null;
-void Function(int x0, [Function x]) f18(int x) => null;
-void Function([core.List<core.int> x0]) f19(int x) => null;
-int Function<A>(List<A> x) f20(int x) => null;
-List<int> Function<A>(int x) f21(int x) => null;
-List<A> Function<A>(Function x) f22(int x) => null;
-
-class U61<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function([int x1]) x0;
-  List<Function> Function([List<T> x1]) x1;
-  List<T> Function(core.List<core.int> x0) x2;
-  void Function(int y, [List<Function> x]) x3;
-  void Function<A>() x4;
-  int Function(int x1, [List<Function> x]) Function(int x) x5;
-  int Function([List<T> x1]) Function(int x) x6;
-  Function Function(int x, [Function x1]) Function(int x) x7;
-  Function Function(int y, {core.List<core.int> x}) Function(int x) x8;
-  List<Function> Function([Function x]) Function(int x) x9;
-  List<Function> Function(core.List<core.int> x1) Function(int x) x10;
-  core.List<core.int> Function(int x2, [int x3]) Function(int x) x11;
-  core.List<core.int> Function(int x1, {List<Function> x}) Function(int x) x12;
-  List<T> Function(int x) Function(int x) x13;
-  List<T> Function(int y, [List<Function> x]) Function(int x) x14;
-  List<T> Function(int x2, [List<T> x3]) Function(int x) x15;
-  Function({Function x}) Function(int x) x16;
-  Function(List<T> x) Function(int x) x17;
-  void Function(int x1, [Function x]) Function(int x) x18;
-  void Function([core.List<core.int> x1]) Function(int x) x19;
-  int Function<A>(List<A> x) Function(int x) x20;
-  List<T> Function<A>(int x) Function(int x) x21;
-  List<A> Function<A>(Function x) Function(int x) x22;
-
-  U61({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0([int x0]) => null;
-  List<Function> m1([List<T> x0]) => null;
-  List<T> m2(core.List<core.int> x0) => null;
-  void m3(int y, [List<Function> x]) => null;
-  void m4<A>() => null;
-  int Function(int x0, [List<Function> x]) m5(int x) => null;
-  int Function([List<T> x0]) m6(int x) => null;
-  Function Function(int x, [Function x0]) m7(int x) => null;
-  Function Function(int y, {core.List<core.int> x}) m8(int x) => null;
-  List<Function> Function([Function x]) m9(int x) => null;
-  List<Function> Function(core.List<core.int> x0) m10(int x) => null;
-  core.List<core.int> Function(int x0, [int x1]) m11(int x) => null;
-  core.List<core.int> Function(int x0, {List<Function> x}) m12(int x) => null;
-  List<T> Function(int x) m13(int x) => null;
-  List<T> Function(int y, [List<Function> x]) m14(int x) => null;
-  List<T> Function(int x0, [List<T> x1]) m15(int x) => null;
-  Function({Function x}) m16(int x) => null;
-  Function(List<T> x) m17(int x) => null;
-  void Function(int x0, [Function x]) m18(int x) => null;
-  void Function([core.List<core.int> x0]) m19(int x) => null;
-  int Function<A>(List<A> x) m20(int x) => null;
-  List<T> Function<A>(int x) m21(int x) => null;
-  List<A> Function<A>(Function x) m22(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function([int x1])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function([int x1]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function([int x1]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function([List<T> x1])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([List<T> x1]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function([List<T> x1]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-    // The static function has its T always set to int.
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isFalse(f1 is F1<bool>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    Expect.isFalse(confuse(f1) is F1<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        x1 = confuse(f1);
-      });
-      Expect.throws(() {
-        l1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        l1 = confuse(f1);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m1 is F1<int>);
-      Expect.equals(true, m1 is F1<bool>);
-      Expect.equals(true, confuse(m1) is F1<int>);
-      Expect.equals(true, confuse(m1) is F1<bool>);
-    }
-  }
-
-  /// List<T> Function(core.List<core.int> x0)
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(core.List<core.int> x0) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(core.List<core.int> x0));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(int y, [List<Function> x])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, [List<Function> x]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int y, [List<Function> x]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// void Function<A>()
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    void Function<A>() l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is void Function<A>());
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x1, [List<Function> x]) Function(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, [List<Function> x]) Function(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(
-        m5 is int Function(int x1, [List<Function> x]) Function(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function([List<T> x1]) Function(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function([List<T> x1]) Function(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function([List<T> x1]) Function(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(int x, [Function x1]) Function(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x, [Function x1]) Function(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(
-        m7 is Function Function(int x, [Function x1]) Function(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int y, {core.List<core.int> x}) Function(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, {core.List<core.int> x}) Function(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int y, {core.List<core.int> x})
-        Function(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function([Function x]) Function(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([Function x]) Function(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function([Function x]) Function(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(core.List<core.int> x1) Function(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(core.List<core.int> x1) Function(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(
-        m10 is List<Function> Function(core.List<core.int> x1) Function(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int x2, [int x3]) Function(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x2, [int x3]) Function(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is core.List<core.int> Function(int x2, [int x3]) Function(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x1, {List<Function> x}) Function(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, {List<Function> x}) Function(int x)
-        l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x1,
-            {List<Function> x})
-        Function(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int x) Function(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x) Function(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function(int x) Function(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, [List<Function> x]) Function(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, [List<Function> x]) Function(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(
-        m14 is List<T> Function(int y, [List<Function> x]) Function(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x2, [List<T> x3]) Function(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x2, [List<T> x3]) Function(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(
-        m15 is List<T> Function(int x2, [List<T> x3]) Function(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function({Function x}) Function(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function({Function x}) Function(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function({Function x}) Function(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(List<T> x) Function(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(List<T> x) Function(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(List<T> x) Function(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(int x1, [Function x]) Function(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, [Function x]) Function(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x1, [Function x]) Function(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function([core.List<core.int> x1]) Function(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function([core.List<core.int> x1]) Function(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(
-        m19 is void Function([core.List<core.int> x1]) Function(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(List<A> x) Function(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(List<A> x) Function(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is int Function<A>(List<A> x) Function(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(int x) Function(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(int x) Function(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<T> Function<A>(int x) Function(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>(Function x) Function(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(Function x) Function(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is List<A> Function<A>(Function x) Function(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U61().runTests();
-  new U61<int>(tIsInt: true).runTests();
-  new U61<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type62_test.dart b/tests/language_2/function_type/function_type62_test.dart
deleted file mode 100644
index 6f8946d4a84..00000000000
--- a/tests/language_2/function_type/function_type62_test.dart
+++ /dev/null
@@ -1,957 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(int x1, [int x2]);
-typedef F1<T> = List<Function> Function(int x1, [List<T> x2]);
-typedef F2<T> = List<T> Function([core.List<core.int> x1]);
-typedef F3<T> = void Function(List<Function> x0);
-typedef F4<T> = void Function<A>(A x);
-typedef F5<T> = int Function(int x1, [List<Function> x])
-    Function<B extends core.int>();
-typedef F6<T> = int Function([List<T> x1]) Function<B extends core.int>();
-typedef F7<T> = Function Function(int x, [Function x1])
-    Function<B extends core.int>();
-typedef F8<T> = Function Function(int y, {core.List<core.int> x})
-    Function<B extends core.int>();
-typedef F9<T> = List<Function> Function([Function x])
-    Function<B extends core.int>();
-typedef F10<T> = List<Function> Function(core.List<core.int> x1)
-    Function<B extends core.int>();
-typedef F11<T> = core.List<core.int> Function(int x2, [int x3])
-    Function<B extends core.int>();
-typedef F12<T> = core.List<core.int> Function(int x1, {List<Function> x})
-    Function<B extends core.int>();
-typedef F13<T> = List<T> Function(int x) Function<B extends core.int>();
-typedef F14<T> = List<T> Function(int y, [List<Function> x])
-    Function<B extends core.int>();
-typedef F15<T> = List<T> Function(int x2, [List<T> x3])
-    Function<B extends core.int>();
-typedef F16<T> = Function({Function x}) Function<B extends core.int>();
-typedef F17<T> = Function(List<T> x) Function<B extends core.int>();
-typedef F18<T> = void Function(int x1, [Function x])
-    Function<B extends core.int>();
-typedef F19<T> = void Function([core.List<core.int> x1])
-    Function<B extends core.int>();
-typedef F20<T> = int Function<A>(List<A> x) Function<B extends core.int>();
-typedef F21<T> = List<T> Function<A>(int x) Function<B extends core.int>();
-typedef F22<T> = List<A> Function<A>(Function x) Function<B extends core.int>();
-
-Function f0(int x0, [int x1]) => null;
-List<Function> f1(int x0, [List<int> x1]) => null;
-List<int> f2([core.List<core.int> x0]) => null;
-void f3(List<Function> x0) => null;
-void f4<A>(A x) => null;
-int Function(int x0, [List<Function> x]) f5<B extends core.int>() => null;
-int Function([List<int> x0]) f6<B extends core.int>() => null;
-Function Function(int x, [Function x0]) f7<B extends core.int>() => null;
-Function Function(int y, {core.List<core.int> x}) f8<B extends core.int>() =>
-    null;
-List<Function> Function([Function x]) f9<B extends core.int>() => null;
-List<Function> Function(core.List<core.int> x0) f10<B extends core.int>() =>
-    null;
-core.List<core.int> Function(int x0, [int x1]) f11<B extends core.int>() =>
-    null;
-core.List<core.int> Function(int x0, {List<Function> x})
-    f12<B extends core.int>() => null;
-List<int> Function(int x) f13<B extends core.int>() => null;
-List<int> Function(int y, [List<Function> x]) f14<B extends core.int>() => null;
-List<int> Function(int x0, [List<int> x1]) f15<B extends core.int>() => null;
-Function({Function x}) f16<B extends core.int>() => null;
-Function(List<int> x) f17<B extends core.int>() => null;
-void Function(int x0, [Function x]) f18<B extends core.int>() => null;
-void Function([core.List<core.int> x0]) f19<B extends core.int>() => null;
-int Function<A>(List<A> x) f20<B extends core.int>() => null;
-List<int> Function<A>(int x) f21<B extends core.int>() => null;
-List<A> Function<A>(Function x) f22<B extends core.int>() => null;
-
-class U62<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(int x1, [int x2]) x0;
-  List<Function> Function(int x1, [List<T> x2]) x1;
-  List<T> Function([core.List<core.int> x1]) x2;
-  void Function(List<Function> x0) x3;
-  void Function<A>(A x) x4;
-  int Function(int x1, [List<Function> x]) Function<B extends core.int>() x5;
-  int Function([List<T> x1]) Function<B extends core.int>() x6;
-  Function Function(int x, [Function x1]) Function<B extends core.int>() x7;
-  Function Function(int y, {core.List<core.int> x})
-      Function<B extends core.int>() x8;
-  List<Function> Function([Function x]) Function<B extends core.int>() x9;
-  List<Function> Function(core.List<core.int> x1) Function<B extends core.int>()
-      x10;
-  core.List<core.int> Function(int x2, [int x3]) Function<B extends core.int>()
-      x11;
-  core.List<core.int> Function(int x1, {List<Function> x})
-      Function<B extends core.int>() x12;
-  List<T> Function(int x) Function<B extends core.int>() x13;
-  List<T> Function(int y, [List<Function> x]) Function<B extends core.int>()
-      x14;
-  List<T> Function(int x2, [List<T> x3]) Function<B extends core.int>() x15;
-  Function({Function x}) Function<B extends core.int>() x16;
-  Function(List<T> x) Function<B extends core.int>() x17;
-  void Function(int x1, [Function x]) Function<B extends core.int>() x18;
-  void Function([core.List<core.int> x1]) Function<B extends core.int>() x19;
-  int Function<A>(List<A> x) Function<B extends core.int>() x20;
-  List<T> Function<A>(int x) Function<B extends core.int>() x21;
-  List<A> Function<A>(Function x) Function<B extends core.int>() x22;
-
-  U62({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(int x0, [int x1]) => null;
-  List<Function> m1(int x0, [List<T> x1]) => null;
-  List<T> m2([core.List<core.int> x0]) => null;
-  void m3(List<Function> x0) => null;
-  void m4<A>(A x) => null;
-  int Function(int x0, [List<Function> x]) m5<B extends core.int>() => null;
-  int Function([List<T> x0]) m6<B extends core.int>() => null;
-  Function Function(int x, [Function x0]) m7<B extends core.int>() => null;
-  Function Function(int y, {core.List<core.int> x}) m8<B extends core.int>() =>
-      null;
-  List<Function> Function([Function x]) m9<B extends core.int>() => null;
-  List<Function> Function(core.List<core.int> x0) m10<B extends core.int>() =>
-      null;
-  core.List<core.int> Function(int x0, [int x1]) m11<B extends core.int>() =>
-      null;
-  core.List<core.int> Function(int x0, {List<Function> x})
-      m12<B extends core.int>() => null;
-  List<T> Function(int x) m13<B extends core.int>() => null;
-  List<T> Function(int y, [List<Function> x]) m14<B extends core.int>() => null;
-  List<T> Function(int x0, [List<T> x1]) m15<B extends core.int>() => null;
-  Function({Function x}) m16<B extends core.int>() => null;
-  Function(List<T> x) m17<B extends core.int>() => null;
-  void Function(int x0, [Function x]) m18<B extends core.int>() => null;
-  void Function([core.List<core.int> x0]) m19<B extends core.int>() => null;
-  int Function<A>(List<A> x) m20<B extends core.int>() => null;
-  List<T> Function<A>(int x) m21<B extends core.int>() => null;
-  List<A> Function<A>(Function x) m22<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(int x1, [int x2])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, [int x2]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(int x1, [int x2]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(int x1, [List<T> x2])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, [List<T> x2]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(int x1, [List<T> x2]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-    // The static function has its T always set to int.
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isFalse(f1 is F1<bool>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    Expect.isFalse(confuse(f1) is F1<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        x1 = confuse(f1);
-      });
-      Expect.throws(() {
-        l1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        l1 = confuse(f1);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m1 is F1<int>);
-      Expect.equals(true, m1 is F1<bool>);
-      Expect.equals(true, confuse(m1) is F1<int>);
-      Expect.equals(true, confuse(m1) is F1<bool>);
-    }
-  }
-
-  /// List<T> Function([core.List<core.int> x1])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([core.List<core.int> x1]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function([core.List<core.int> x1]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(List<Function> x0)
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(List<Function> x0) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(List<Function> x0));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// void Function<A>(A x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(A x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is void Function<A>(A x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x1, [List<Function> x]) Function<B extends core.int>()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, [List<Function> x]) Function<B extends core.int>() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x1, [List<Function> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function([List<T> x1]) Function<B extends core.int>()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function([List<T> x1]) Function<B extends core.int>() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is int Function([List<T> x1]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(int x, [Function x1]) Function<B extends core.int>()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x, [Function x1]) Function<B extends core.int>() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x, [Function x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int y, {core.List<core.int> x}) Function<B extends core.int>()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, {core.List<core.int> x})
-        Function<B extends core.int>() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int y, {core.List<core.int> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function([Function x]) Function<B extends core.int>()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([Function x]) Function<B extends core.int>() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function([Function x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(core.List<core.int> x1) Function<B extends core.int>()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(core.List<core.int> x1)
-        Function<B extends core.int>() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(core.List<core.int> x1)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int x2, [int x3]) Function<B extends core.int>()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x2, [int x3])
-        Function<B extends core.int>() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(int x2, [int x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x1, {List<Function> x}) Function<B extends core.int>()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, {List<Function> x})
-        Function<B extends core.int>() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x1,
-            {List<Function> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int x) Function<B extends core.int>()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x) Function<B extends core.int>() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(
-        m13 is List<T> Function(int x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, [List<Function> x]) Function<B extends core.int>()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, [List<Function> x]) Function<B extends core.int>()
-        l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int y, [List<Function> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x2, [List<T> x3]) Function<B extends core.int>()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x2, [List<T> x3]) Function<B extends core.int>() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x2, [List<T> x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function({Function x}) Function<B extends core.int>()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function({Function x}) Function<B extends core.int>() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function({Function x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(List<T> x) Function<B extends core.int>()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(List<T> x) Function<B extends core.int>() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(List<T> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(int x1, [Function x]) Function<B extends core.int>()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, [Function x]) Function<B extends core.int>() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x1, [Function x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function([core.List<core.int> x1]) Function<B extends core.int>()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function([core.List<core.int> x1]) Function<B extends core.int>() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function([core.List<core.int> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(List<A> x) Function<B extends core.int>()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(List<A> x) Function<B extends core.int>() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(
-        m20 is int Function<A>(List<A> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(int x) Function<B extends core.int>()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(int x) Function<B extends core.int>() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(
-        m21 is List<T> Function<A>(int x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>(Function x) Function<B extends core.int>()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(Function x) Function<B extends core.int>() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(
-        m22 is List<A> Function<A>(Function x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U62().runTests();
-  new U62<int>(tIsInt: true).runTests();
-  new U62<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type63_test.dart b/tests/language_2/function_type/function_type63_test.dart
deleted file mode 100644
index 98160448971..00000000000
--- a/tests/language_2/function_type/function_type63_test.dart
+++ /dev/null
@@ -1,979 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(int x, [int x2]);
-typedef F1<T> = List<Function> Function(int x, [List<T> x2]);
-typedef F2<T> = List<T> Function(int x1, [core.List<core.int> x2]);
-typedef F3<T> = void Function([List<Function> x1]);
-typedef F4<T> = void Function<A>(List<A> x);
-typedef F5<T> = int Function(int x1, [List<Function> x])
-    Function<B extends core.int>(int x);
-typedef F6<T> = int Function([List<T> x1]) Function<B extends core.int>(int x);
-typedef F7<T> = Function Function(int x, [Function x1])
-    Function<B extends core.int>(int x);
-typedef F8<T> = Function Function(int y, {core.List<core.int> x})
-    Function<B extends core.int>(int x);
-typedef F9<T> = List<Function> Function([Function x])
-    Function<B extends core.int>(int x);
-typedef F10<T> = List<Function> Function(core.List<core.int> x1)
-    Function<B extends core.int>(int x);
-typedef F11<T> = core.List<core.int> Function(int x2, [int x3])
-    Function<B extends core.int>(int x);
-typedef F12<T> = core.List<core.int> Function(int x1, {List<Function> x})
-    Function<B extends core.int>(int x);
-typedef F13<T> = List<T> Function(int x) Function<B extends core.int>(int x);
-typedef F14<T> = List<T> Function(int y, [List<Function> x])
-    Function<B extends core.int>(int x);
-typedef F15<T> = List<T> Function(int x2, [List<T> x3])
-    Function<B extends core.int>(int x);
-typedef F16<T> = Function({Function x}) Function<B extends core.int>(int x);
-typedef F17<T> = Function(List<T> x) Function<B extends core.int>(int x);
-typedef F18<T> = void Function(int x1, [Function x])
-    Function<B extends core.int>(int x);
-typedef F19<T> = void Function([core.List<core.int> x1])
-    Function<B extends core.int>(int x);
-typedef F20<T> = int Function<A>(List<A> x) Function<B extends core.int>(int x);
-typedef F21<T> = List<T> Function<A>(int x) Function<B extends core.int>(int x);
-typedef F22<T> = List<A> Function<A>(Function x) Function<B extends core.int>(
-    int x);
-
-Function f0(int x, [int x0]) => null;
-List<Function> f1(int x, [List<int> x0]) => null;
-List<int> f2(int x0, [core.List<core.int> x1]) => null;
-void f3([List<Function> x0]) => null;
-void f4<A>(List<A> x) => null;
-int Function(int x0, [List<Function> x]) f5<B extends core.int>(int x) => null;
-int Function([List<int> x0]) f6<B extends core.int>(int x) => null;
-Function Function(int x, [Function x0]) f7<B extends core.int>(int x) => null;
-Function Function(int y, {core.List<core.int> x}) f8<B extends core.int>(
-        int x) =>
-    null;
-List<Function> Function([Function x]) f9<B extends core.int>(int x) => null;
-List<Function> Function(core.List<core.int> x0) f10<B extends core.int>(
-        int x) =>
-    null;
-core.List<core.int> Function(int x0, [int x1]) f11<B extends core.int>(int x) =>
-    null;
-core.List<core.int> Function(int x0, {List<Function> x})
-    f12<B extends core.int>(int x) => null;
-List<int> Function(int x) f13<B extends core.int>(int x) => null;
-List<int> Function(int y, [List<Function> x]) f14<B extends core.int>(int x) =>
-    null;
-List<int> Function(int x0, [List<int> x1]) f15<B extends core.int>(int x) =>
-    null;
-Function({Function x}) f16<B extends core.int>(int x) => null;
-Function(List<int> x) f17<B extends core.int>(int x) => null;
-void Function(int x0, [Function x]) f18<B extends core.int>(int x) => null;
-void Function([core.List<core.int> x0]) f19<B extends core.int>(int x) => null;
-int Function<A>(List<A> x) f20<B extends core.int>(int x) => null;
-List<int> Function<A>(int x) f21<B extends core.int>(int x) => null;
-List<A> Function<A>(Function x) f22<B extends core.int>(int x) => null;
-
-class U63<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(int x, [int x2]) x0;
-  List<Function> Function(int x, [List<T> x2]) x1;
-  List<T> Function(int x1, [core.List<core.int> x2]) x2;
-  void Function([List<Function> x1]) x3;
-  void Function<A>(List<A> x) x4;
-  int Function(int x1, [List<Function> x]) Function<B extends core.int>(int x)
-      x5;
-  int Function([List<T> x1]) Function<B extends core.int>(int x) x6;
-  Function Function(int x, [Function x1]) Function<B extends core.int>(int x)
-      x7;
-  Function Function(int y, {core.List<core.int> x})
-      Function<B extends core.int>(int x) x8;
-  List<Function> Function([Function x]) Function<B extends core.int>(int x) x9;
-  List<Function> Function(core.List<core.int> x1) Function<B extends core.int>(
-      int x) x10;
-  core.List<core.int> Function(int x2, [int x3]) Function<B extends core.int>(
-      int x) x11;
-  core.List<core.int> Function(int x1, {List<Function> x})
-      Function<B extends core.int>(int x) x12;
-  List<T> Function(int x) Function<B extends core.int>(int x) x13;
-  List<T> Function(int y, [List<Function> x]) Function<B extends core.int>(
-      int x) x14;
-  List<T> Function(int x2, [List<T> x3]) Function<B extends core.int>(int x)
-      x15;
-  Function({Function x}) Function<B extends core.int>(int x) x16;
-  Function(List<T> x) Function<B extends core.int>(int x) x17;
-  void Function(int x1, [Function x]) Function<B extends core.int>(int x) x18;
-  void Function([core.List<core.int> x1]) Function<B extends core.int>(int x)
-      x19;
-  int Function<A>(List<A> x) Function<B extends core.int>(int x) x20;
-  List<T> Function<A>(int x) Function<B extends core.int>(int x) x21;
-  List<A> Function<A>(Function x) Function<B extends core.int>(int x) x22;
-
-  U63({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(int x, [int x0]) => null;
-  List<Function> m1(int x, [List<T> x0]) => null;
-  List<T> m2(int x0, [core.List<core.int> x1]) => null;
-  void m3([List<Function> x0]) => null;
-  void m4<A>(List<A> x) => null;
-  int Function(int x0, [List<Function> x]) m5<B extends core.int>(int x) =>
-      null;
-  int Function([List<T> x0]) m6<B extends core.int>(int x) => null;
-  Function Function(int x, [Function x0]) m7<B extends core.int>(int x) => null;
-  Function Function(int y, {core.List<core.int> x}) m8<B extends core.int>(
-          int x) =>
-      null;
-  List<Function> Function([Function x]) m9<B extends core.int>(int x) => null;
-  List<Function> Function(core.List<core.int> x0) m10<B extends core.int>(
-          int x) =>
-      null;
-  core.List<core.int> Function(int x0, [int x1]) m11<B extends core.int>(
-          int x) =>
-      null;
-  core.List<core.int> Function(int x0, {List<Function> x})
-      m12<B extends core.int>(int x) => null;
-  List<T> Function(int x) m13<B extends core.int>(int x) => null;
-  List<T> Function(int y, [List<Function> x]) m14<B extends core.int>(int x) =>
-      null;
-  List<T> Function(int x0, [List<T> x1]) m15<B extends core.int>(int x) => null;
-  Function({Function x}) m16<B extends core.int>(int x) => null;
-  Function(List<T> x) m17<B extends core.int>(int x) => null;
-  void Function(int x0, [Function x]) m18<B extends core.int>(int x) => null;
-  void Function([core.List<core.int> x0]) m19<B extends core.int>(int x) =>
-      null;
-  int Function<A>(List<A> x) m20<B extends core.int>(int x) => null;
-  List<T> Function<A>(int x) m21<B extends core.int>(int x) => null;
-  List<A> Function<A>(Function x) m22<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(int x, [int x2])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x, [int x2]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(int x, [int x2]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(int x, [List<T> x2])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x, [List<T> x2]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(int x, [List<T> x2]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-    // The static function has its T always set to int.
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isFalse(f1 is F1<bool>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    Expect.isFalse(confuse(f1) is F1<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        x1 = confuse(f1);
-      });
-      Expect.throws(() {
-        l1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        l1 = confuse(f1);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m1 is F1<int>);
-      Expect.equals(true, m1 is F1<bool>);
-      Expect.equals(true, confuse(m1) is F1<int>);
-      Expect.equals(true, confuse(m1) is F1<bool>);
-    }
-  }
-
-  /// List<T> Function(int x1, [core.List<core.int> x2])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, [core.List<core.int> x2]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int x1, [core.List<core.int> x2]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function([List<Function> x1])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function([List<Function> x1]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function([List<Function> x1]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// void Function<A>(List<A> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(List<A> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is void Function<A>(List<A> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x1, [List<Function> x]) Function<B extends core.int>(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, [List<Function> x]) Function<B extends core.int>(int x)
-        l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x1, [List<Function> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function([List<T> x1]) Function<B extends core.int>(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function([List<T> x1]) Function<B extends core.int>(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is int Function([List<T> x1]) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(int x, [Function x1]) Function<B extends core.int>(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x, [Function x1]) Function<B extends core.int>(int x)
-        l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x, [Function x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int y, {core.List<core.int> x}) Function<B extends core.int>(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, {core.List<core.int> x})
-        Function<B extends core.int>(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int y, {core.List<core.int> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// List<Function> Function([Function x]) Function<B extends core.int>(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([Function x]) Function<B extends core.int>(int x)
-        l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function([Function x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(core.List<core.int> x1) Function<B extends core.int>(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(core.List<core.int> x1)
-        Function<B extends core.int>(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(core.List<core.int> x1)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int x2, [int x3]) Function<B extends core.int>(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x2, [int x3]) Function<B extends core.int>(
-        int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(int x2, [int x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x1, {List<Function> x}) Function<B extends core.int>(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, {List<Function> x})
-        Function<B extends core.int>(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x1,
-            {List<Function> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int x) Function<B extends core.int>(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x) Function<B extends core.int>(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(
-        m13 is List<T> Function(int x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, [List<Function> x]) Function<B extends core.int>(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, [List<Function> x]) Function<B extends core.int>(
-        int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int y, [List<Function> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x2, [List<T> x3]) Function<B extends core.int>(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x2, [List<T> x3]) Function<B extends core.int>(int x)
-        l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x2, [List<T> x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function({Function x}) Function<B extends core.int>(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function({Function x}) Function<B extends core.int>(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function({Function x}) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(List<T> x) Function<B extends core.int>(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(List<T> x) Function<B extends core.int>(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(
-        m17 is Function(List<T> x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(int x1, [Function x]) Function<B extends core.int>(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, [Function x]) Function<B extends core.int>(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x1, [Function x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function([core.List<core.int> x1]) Function<B extends core.int>(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function([core.List<core.int> x1]) Function<B extends core.int>(int x)
-        l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function([core.List<core.int> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// int Function<A>(List<A> x) Function<B extends core.int>(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(List<A> x) Function<B extends core.int>(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(
-        m20 is int Function<A>(List<A> x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(int x) Function<B extends core.int>(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(int x) Function<B extends core.int>(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(
-        m21 is List<T> Function<A>(int x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>(Function x) Function<B extends core.int>(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(Function x) Function<B extends core.int>(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is List<A> Function<A>(Function x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U63().runTests();
-  new U63<int>(tIsInt: true).runTests();
-  new U63<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type64_test.dart b/tests/language_2/function_type/function_type64_test.dart
deleted file mode 100644
index 83ec553fe75..00000000000
--- a/tests/language_2/function_type/function_type64_test.dart
+++ /dev/null
@@ -1,942 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function({int x});
-typedef F1<T> = List<Function> Function({List<T> x});
-typedef F2<T> = List<T> Function(int x, [core.List<core.int> x2]);
-typedef F3<T> = void Function(int x1, [List<Function> x2]);
-typedef F4<T> = int Function(int x) Function();
-typedef F5<T> = int Function(int y, [List<Function> x]) Function();
-typedef F6<T> = int Function(int x1, [List<T> x2]) Function();
-typedef F7<T> = Function Function({Function x}) Function();
-typedef F8<T> = Function Function(List<T> x) Function();
-typedef F9<T> = List<Function> Function(int x0, [Function x]) Function();
-typedef F10<T> = List<Function> Function([core.List<core.int> x1]) Function();
-typedef F11<T> = core.List<core.int> Function(int x, [int x2]) Function();
-typedef F12<T> = core.List<core.int> Function(int y, {List<Function> x})
-    Function();
-typedef F13<T> = List<T> Function([int x]) Function();
-typedef F14<T> = List<T> Function(List<Function> x0) Function();
-typedef F15<T> = List<T> Function(int x, [List<T> x2]) Function();
-typedef F16<T> = Function(int x0, {Function x}) Function();
-typedef F17<T> = Function([List<T> x]) Function();
-typedef F18<T> = void Function(int y, [Function x]) Function();
-typedef F19<T> = void Function(int x1, [core.List<core.int> x2]) Function();
-typedef F20<T> = Function Function<A>(int x) Function();
-typedef F21<T> = List<T> Function<A>(Function x) Function();
-typedef F22<T> = List<A> Function<A>(List<Function> x) Function();
-
-Function f0({int x}) => null;
-List<Function> f1({List<int> x}) => null;
-List<int> f2(int x, [core.List<core.int> x0]) => null;
-void f3(int x0, [List<Function> x1]) => null;
-int Function(int x) f4() => null;
-int Function(int y, [List<Function> x]) f5() => null;
-int Function(int x0, [List<int> x1]) f6() => null;
-Function Function({Function x}) f7() => null;
-Function Function(List<int> x) f8() => null;
-List<Function> Function(int x0, [Function x]) f9() => null;
-List<Function> Function([core.List<core.int> x0]) f10() => null;
-core.List<core.int> Function(int x, [int x0]) f11() => null;
-core.List<core.int> Function(int y, {List<Function> x}) f12() => null;
-List<int> Function([int x]) f13() => null;
-List<int> Function(List<Function> x0) f14() => null;
-List<int> Function(int x, [List<int> x0]) f15() => null;
-Function(int x0, {Function x}) f16() => null;
-Function([List<int> x]) f17() => null;
-void Function(int y, [Function x]) f18() => null;
-void Function(int x0, [core.List<core.int> x1]) f19() => null;
-Function Function<A>(int x) f20() => null;
-List<int> Function<A>(Function x) f21() => null;
-List<A> Function<A>(List<Function> x) f22() => null;
-
-class U64<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function({int x}) x0;
-  List<Function> Function({List<T> x}) x1;
-  List<T> Function(int x, [core.List<core.int> x2]) x2;
-  void Function(int x1, [List<Function> x2]) x3;
-  int Function(int x) Function() x4;
-  int Function(int y, [List<Function> x]) Function() x5;
-  int Function(int x1, [List<T> x2]) Function() x6;
-  Function Function({Function x}) Function() x7;
-  Function Function(List<T> x) Function() x8;
-  List<Function> Function(int x0, [Function x]) Function() x9;
-  List<Function> Function([core.List<core.int> x1]) Function() x10;
-  core.List<core.int> Function(int x, [int x2]) Function() x11;
-  core.List<core.int> Function(int y, {List<Function> x}) Function() x12;
-  List<T> Function([int x]) Function() x13;
-  List<T> Function(List<Function> x0) Function() x14;
-  List<T> Function(int x, [List<T> x2]) Function() x15;
-  Function(int x0, {Function x}) Function() x16;
-  Function([List<T> x]) Function() x17;
-  void Function(int y, [Function x]) Function() x18;
-  void Function(int x1, [core.List<core.int> x2]) Function() x19;
-  Function Function<A>(int x) Function() x20;
-  List<T> Function<A>(Function x) Function() x21;
-  List<A> Function<A>(List<Function> x) Function() x22;
-
-  U64({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0({int x}) => null;
-  List<Function> m1({List<T> x}) => null;
-  List<T> m2(int x, [core.List<core.int> x0]) => null;
-  void m3(int x0, [List<Function> x1]) => null;
-  int Function(int x) m4() => null;
-  int Function(int y, [List<Function> x]) m5() => null;
-  int Function(int x0, [List<T> x1]) m6() => null;
-  Function Function({Function x}) m7() => null;
-  Function Function(List<T> x) m8() => null;
-  List<Function> Function(int x0, [Function x]) m9() => null;
-  List<Function> Function([core.List<core.int> x0]) m10() => null;
-  core.List<core.int> Function(int x, [int x0]) m11() => null;
-  core.List<core.int> Function(int y, {List<Function> x}) m12() => null;
-  List<T> Function([int x]) m13() => null;
-  List<T> Function(List<Function> x0) m14() => null;
-  List<T> Function(int x, [List<T> x0]) m15() => null;
-  Function(int x0, {Function x}) m16() => null;
-  Function([List<T> x]) m17() => null;
-  void Function(int y, [Function x]) m18() => null;
-  void Function(int x0, [core.List<core.int> x1]) m19() => null;
-  Function Function<A>(int x) m20() => null;
-  List<T> Function<A>(Function x) m21() => null;
-  List<A> Function<A>(List<Function> x) m22() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function({int x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function({int x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function({int x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function({List<T> x})
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function({List<T> x}) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function({List<T> x}));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-    // The static function has its T always set to int.
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isFalse(f1 is F1<bool>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    Expect.isFalse(confuse(f1) is F1<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        x1 = confuse(f1);
-      });
-      Expect.throws(() {
-        l1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        l1 = confuse(f1);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m1 is F1<int>);
-      Expect.equals(true, m1 is F1<bool>);
-      Expect.equals(true, confuse(m1) is F1<int>);
-      Expect.equals(true, confuse(m1) is F1<bool>);
-    }
-  }
-
-  /// List<T> Function(int x, [core.List<core.int> x2])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x, [core.List<core.int> x2]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int x, [core.List<core.int> x2]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(int x1, [List<Function> x2])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, [List<Function> x2]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int x1, [List<Function> x2]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// int Function(int x) Function()
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function(int x) Function() l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is int Function(int x) Function());
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int y, [List<Function> x]) Function()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, [List<Function> x]) Function() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int y, [List<Function> x]) Function());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x1, [List<T> x2]) Function()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, [List<T> x2]) Function() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int x1, [List<T> x2]) Function());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function({Function x}) Function()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function({Function x}) Function() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function({Function x}) Function());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(List<T> x) Function()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(List<T> x) Function() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(List<T> x) Function());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(int x0, [Function x]) Function()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x0, [Function x]) Function() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(
-        m9 is List<Function> Function(int x0, [Function x]) Function());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function([core.List<core.int> x1]) Function()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([core.List<core.int> x1]) Function() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(
-        m10 is List<Function> Function([core.List<core.int> x1]) Function());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int x, [int x2]) Function()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x, [int x2]) Function() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is core.List<core.int> Function(int x, [int x2]) Function());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int y, {List<Function> x}) Function()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, {List<Function> x}) Function() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int y, {List<Function> x})
-        Function());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function([int x]) Function()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([int x]) Function() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function([int x]) Function());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(List<Function> x0) Function()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(List<Function> x0) Function() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(List<Function> x0) Function());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x, [List<T> x2]) Function()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x, [List<T> x2]) Function() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x, [List<T> x2]) Function());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x0, {Function x}) Function()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x0, {Function x}) Function() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x0, {Function x}) Function());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function([List<T> x]) Function()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function([List<T> x]) Function() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function([List<T> x]) Function());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(int y, [Function x]) Function()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, [Function x]) Function() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int y, [Function x]) Function());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x1, [core.List<core.int> x2]) Function()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, [core.List<core.int> x2]) Function() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(
-        m19 is void Function(int x1, [core.List<core.int> x2]) Function());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// Function Function<A>(int x) Function()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(int x) Function() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is Function Function<A>(int x) Function());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(Function x) Function()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(Function x) Function() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<T> Function<A>(Function x) Function());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>(List<Function> x) Function()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(List<Function> x) Function() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is List<A> Function<A>(List<Function> x) Function());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U64().runTests();
-  new U64<int>(tIsInt: true).runTests();
-  new U64<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type65_test.dart b/tests/language_2/function_type/function_type65_test.dart
deleted file mode 100644
index 57116641d51..00000000000
--- a/tests/language_2/function_type/function_type65_test.dart
+++ /dev/null
@@ -1,945 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(int x0, {int x});
-typedef F1<T> = List<Function> Function(int x0, {List<T> x});
-typedef F2<T> = List<T> Function({core.List<core.int> x});
-typedef F3<T> = void Function(int x, [List<Function> x2]);
-typedef F4<T> = int Function(int x) Function(int x);
-typedef F5<T> = int Function(int y, [List<Function> x]) Function(int x);
-typedef F6<T> = int Function(int x2, [List<T> x3]) Function(int x);
-typedef F7<T> = Function Function({Function x}) Function(int x);
-typedef F8<T> = Function Function(List<T> x) Function(int x);
-typedef F9<T> = List<Function> Function(int x1, [Function x]) Function(int x);
-typedef F10<T> = List<Function> Function([core.List<core.int> x1]) Function(
-    int x);
-typedef F11<T> = core.List<core.int> Function(int x, [int x1]) Function(int x);
-typedef F12<T> = core.List<core.int> Function(int y, {List<Function> x})
-    Function(int x);
-typedef F13<T> = List<T> Function([int x]) Function(int x);
-typedef F14<T> = List<T> Function(List<Function> x1) Function(int x);
-typedef F15<T> = List<T> Function(int x, [List<T> x1]) Function(int x);
-typedef F16<T> = Function(int x1, {Function x}) Function(int x);
-typedef F17<T> = Function([List<T> x]) Function(int x);
-typedef F18<T> = void Function(int y, [Function x]) Function(int x);
-typedef F19<T> = void Function(int x2, [core.List<core.int> x3]) Function(
-    int x);
-typedef F20<T> = Function Function<A>(int x) Function(int x);
-typedef F21<T> = List<T> Function<A>(Function x) Function(int x);
-typedef F22<T> = List<A> Function<A>(List<Function> x) Function(int x);
-
-Function f0(int x0, {int x}) => null;
-List<Function> f1(int x0, {List<int> x}) => null;
-List<int> f2({core.List<core.int> x}) => null;
-void f3(int x, [List<Function> x0]) => null;
-int Function(int x) f4(int x) => null;
-int Function(int y, [List<Function> x]) f5(int x) => null;
-int Function(int x0, [List<int> x1]) f6(int x) => null;
-Function Function({Function x}) f7(int x) => null;
-Function Function(List<int> x) f8(int x) => null;
-List<Function> Function(int x0, [Function x]) f9(int x) => null;
-List<Function> Function([core.List<core.int> x0]) f10(int x) => null;
-core.List<core.int> Function(int x, [int x0]) f11(int x) => null;
-core.List<core.int> Function(int y, {List<Function> x}) f12(int x) => null;
-List<int> Function([int x]) f13(int x) => null;
-List<int> Function(List<Function> x0) f14(int x) => null;
-List<int> Function(int x, [List<int> x0]) f15(int x) => null;
-Function(int x0, {Function x}) f16(int x) => null;
-Function([List<int> x]) f17(int x) => null;
-void Function(int y, [Function x]) f18(int x) => null;
-void Function(int x0, [core.List<core.int> x1]) f19(int x) => null;
-Function Function<A>(int x) f20(int x) => null;
-List<int> Function<A>(Function x) f21(int x) => null;
-List<A> Function<A>(List<Function> x) f22(int x) => null;
-
-class U65<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(int x0, {int x}) x0;
-  List<Function> Function(int x0, {List<T> x}) x1;
-  List<T> Function({core.List<core.int> x}) x2;
-  void Function(int x, [List<Function> x2]) x3;
-  int Function(int x) Function(int x) x4;
-  int Function(int y, [List<Function> x]) Function(int x) x5;
-  int Function(int x2, [List<T> x3]) Function(int x) x6;
-  Function Function({Function x}) Function(int x) x7;
-  Function Function(List<T> x) Function(int x) x8;
-  List<Function> Function(int x1, [Function x]) Function(int x) x9;
-  List<Function> Function([core.List<core.int> x1]) Function(int x) x10;
-  core.List<core.int> Function(int x, [int x1]) Function(int x) x11;
-  core.List<core.int> Function(int y, {List<Function> x}) Function(int x) x12;
-  List<T> Function([int x]) Function(int x) x13;
-  List<T> Function(List<Function> x1) Function(int x) x14;
-  List<T> Function(int x, [List<T> x1]) Function(int x) x15;
-  Function(int x1, {Function x}) Function(int x) x16;
-  Function([List<T> x]) Function(int x) x17;
-  void Function(int y, [Function x]) Function(int x) x18;
-  void Function(int x2, [core.List<core.int> x3]) Function(int x) x19;
-  Function Function<A>(int x) Function(int x) x20;
-  List<T> Function<A>(Function x) Function(int x) x21;
-  List<A> Function<A>(List<Function> x) Function(int x) x22;
-
-  U65({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(int x0, {int x}) => null;
-  List<Function> m1(int x0, {List<T> x}) => null;
-  List<T> m2({core.List<core.int> x}) => null;
-  void m3(int x, [List<Function> x0]) => null;
-  int Function(int x) m4(int x) => null;
-  int Function(int y, [List<Function> x]) m5(int x) => null;
-  int Function(int x0, [List<T> x1]) m6(int x) => null;
-  Function Function({Function x}) m7(int x) => null;
-  Function Function(List<T> x) m8(int x) => null;
-  List<Function> Function(int x0, [Function x]) m9(int x) => null;
-  List<Function> Function([core.List<core.int> x0]) m10(int x) => null;
-  core.List<core.int> Function(int x, [int x0]) m11(int x) => null;
-  core.List<core.int> Function(int y, {List<Function> x}) m12(int x) => null;
-  List<T> Function([int x]) m13(int x) => null;
-  List<T> Function(List<Function> x0) m14(int x) => null;
-  List<T> Function(int x, [List<T> x0]) m15(int x) => null;
-  Function(int x0, {Function x}) m16(int x) => null;
-  Function([List<T> x]) m17(int x) => null;
-  void Function(int y, [Function x]) m18(int x) => null;
-  void Function(int x0, [core.List<core.int> x1]) m19(int x) => null;
-  Function Function<A>(int x) m20(int x) => null;
-  List<T> Function<A>(Function x) m21(int x) => null;
-  List<A> Function<A>(List<Function> x) m22(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(int x0, {int x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x0, {int x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(int x0, {int x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(int x0, {List<T> x})
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x0, {List<T> x}) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(int x0, {List<T> x}));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-    // The static function has its T always set to int.
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isFalse(f1 is F1<bool>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    Expect.isFalse(confuse(f1) is F1<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        x1 = confuse(f1);
-      });
-      Expect.throws(() {
-        l1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        l1 = confuse(f1);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m1 is F1<int>);
-      Expect.equals(true, m1 is F1<bool>);
-      Expect.equals(true, confuse(m1) is F1<int>);
-      Expect.equals(true, confuse(m1) is F1<bool>);
-    }
-  }
-
-  /// List<T> Function({core.List<core.int> x})
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function({core.List<core.int> x}) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function({core.List<core.int> x}));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(int x, [List<Function> x2])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int x, [List<Function> x2]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int x, [List<Function> x2]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// int Function(int x) Function(int x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function(int x) Function(int x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is int Function(int x) Function(int x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int y, [List<Function> x]) Function(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, [List<Function> x]) Function(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(
-        m5 is int Function(int y, [List<Function> x]) Function(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x2, [List<T> x3]) Function(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x2, [List<T> x3]) Function(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int x2, [List<T> x3]) Function(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function({Function x}) Function(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function({Function x}) Function(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function({Function x}) Function(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(List<T> x) Function(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(List<T> x) Function(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(List<T> x) Function(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(int x1, [Function x]) Function(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, [Function x]) Function(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(
-        m9 is List<Function> Function(int x1, [Function x]) Function(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function([core.List<core.int> x1]) Function(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([core.List<core.int> x1]) Function(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function([core.List<core.int> x1])
-        Function(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int x, [int x1]) Function(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x, [int x1]) Function(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is core.List<core.int> Function(int x, [int x1]) Function(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int y, {List<Function> x}) Function(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, {List<Function> x}) Function(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int y, {List<Function> x})
-        Function(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function([int x]) Function(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([int x]) Function(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function([int x]) Function(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(List<Function> x1) Function(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(List<Function> x1) Function(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(List<Function> x1) Function(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x, [List<T> x1]) Function(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x, [List<T> x1]) Function(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x, [List<T> x1]) Function(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x1, {Function x}) Function(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, {Function x}) Function(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x1, {Function x}) Function(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function([List<T> x]) Function(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function([List<T> x]) Function(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function([List<T> x]) Function(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(int y, [Function x]) Function(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, [Function x]) Function(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int y, [Function x]) Function(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x2, [core.List<core.int> x3]) Function(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x2, [core.List<core.int> x3]) Function(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(
-        m19 is void Function(int x2, [core.List<core.int> x3]) Function(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// Function Function<A>(int x) Function(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(int x) Function(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is Function Function<A>(int x) Function(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(Function x) Function(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(Function x) Function(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<T> Function<A>(Function x) Function(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>(List<Function> x) Function(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(List<Function> x) Function(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is List<A> Function<A>(List<Function> x) Function(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U65().runTests();
-  new U65<int>(tIsInt: true).runTests();
-  new U65<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type66_test.dart b/tests/language_2/function_type/function_type66_test.dart
deleted file mode 100644
index 783881e7c50..00000000000
--- a/tests/language_2/function_type/function_type66_test.dart
+++ /dev/null
@@ -1,982 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(int y, {int x});
-typedef F1<T> = List<Function> Function(int y, {List<T> x});
-typedef F2<T> = List<T> Function(int x0, {core.List<core.int> x});
-typedef F3<T> = void Function({List<Function> x});
-typedef F4<T> = int Function(int x) Function<B extends core.int>();
-typedef F5<T> = int Function(int y, [List<Function> x])
-    Function<B extends core.int>();
-typedef F6<T> = int Function(int x2, [List<T> x3])
-    Function<B extends core.int>();
-typedef F7<T> = Function Function({Function x}) Function<B extends core.int>();
-typedef F8<T> = Function Function(List<T> x) Function<B extends core.int>();
-typedef F9<T> = List<Function> Function(int x1, [Function x])
-    Function<B extends core.int>();
-typedef F10<T> = List<Function> Function([core.List<core.int> x1])
-    Function<B extends core.int>();
-typedef F11<T> = core.List<core.int> Function(int x, [int x1])
-    Function<B extends core.int>();
-typedef F12<T> = core.List<core.int> Function(int y, {List<Function> x})
-    Function<B extends core.int>();
-typedef F13<T> = List<T> Function([int x]) Function<B extends core.int>();
-typedef F14<T> = List<T> Function(List<Function> x1)
-    Function<B extends core.int>();
-typedef F15<T> = List<T> Function(int x, [List<T> x1])
-    Function<B extends core.int>();
-typedef F16<T> = Function(int x1, {Function x}) Function<B extends core.int>();
-typedef F17<T> = Function([List<T> x]) Function<B extends core.int>();
-typedef F18<T> = void Function(int y, [Function x])
-    Function<B extends core.int>();
-typedef F19<T> = void Function(int x2, [core.List<core.int> x3])
-    Function<B extends core.int>();
-typedef F20<T> = Function Function<A>(int x) Function<B extends core.int>();
-typedef F21<T> = List<T> Function<A>(Function x) Function<B extends core.int>();
-typedef F22<T> = List<A> Function<A>(List<Function> x)
-    Function<B extends core.int>();
-
-Function f0(int y, {int x}) => null;
-List<Function> f1(int y, {List<int> x}) => null;
-List<int> f2(int x0, {core.List<core.int> x}) => null;
-void f3({List<Function> x}) => null;
-int Function(int x) f4<B extends core.int>() => null;
-int Function(int y, [List<Function> x]) f5<B extends core.int>() => null;
-int Function(int x0, [List<int> x1]) f6<B extends core.int>() => null;
-Function Function({Function x}) f7<B extends core.int>() => null;
-Function Function(List<int> x) f8<B extends core.int>() => null;
-List<Function> Function(int x0, [Function x]) f9<B extends core.int>() => null;
-List<Function> Function([core.List<core.int> x0]) f10<B extends core.int>() =>
-    null;
-core.List<core.int> Function(int x, [int x0]) f11<B extends core.int>() => null;
-core.List<core.int> Function(int y, {List<Function> x})
-    f12<B extends core.int>() => null;
-List<int> Function([int x]) f13<B extends core.int>() => null;
-List<int> Function(List<Function> x0) f14<B extends core.int>() => null;
-List<int> Function(int x, [List<int> x0]) f15<B extends core.int>() => null;
-Function(int x0, {Function x}) f16<B extends core.int>() => null;
-Function([List<int> x]) f17<B extends core.int>() => null;
-void Function(int y, [Function x]) f18<B extends core.int>() => null;
-void Function(int x0, [core.List<core.int> x1]) f19<B extends core.int>() =>
-    null;
-Function Function<A>(int x) f20<B extends core.int>() => null;
-List<int> Function<A>(Function x) f21<B extends core.int>() => null;
-List<A> Function<A>(List<Function> x) f22<B extends core.int>() => null;
-
-class U66<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(int y, {int x}) x0;
-  List<Function> Function(int y, {List<T> x}) x1;
-  List<T> Function(int x0, {core.List<core.int> x}) x2;
-  void Function({List<Function> x}) x3;
-  int Function(int x) Function<B extends core.int>() x4;
-  int Function(int y, [List<Function> x]) Function<B extends core.int>() x5;
-  int Function(int x2, [List<T> x3]) Function<B extends core.int>() x6;
-  Function Function({Function x}) Function<B extends core.int>() x7;
-  Function Function(List<T> x) Function<B extends core.int>() x8;
-  List<Function> Function(int x1, [Function x]) Function<B extends core.int>()
-      x9;
-  List<Function> Function([core.List<core.int> x1])
-      Function<B extends core.int>() x10;
-  core.List<core.int> Function(int x, [int x1]) Function<B extends core.int>()
-      x11;
-  core.List<core.int> Function(int y, {List<Function> x})
-      Function<B extends core.int>() x12;
-  List<T> Function([int x]) Function<B extends core.int>() x13;
-  List<T> Function(List<Function> x1) Function<B extends core.int>() x14;
-  List<T> Function(int x, [List<T> x1]) Function<B extends core.int>() x15;
-  Function(int x1, {Function x}) Function<B extends core.int>() x16;
-  Function([List<T> x]) Function<B extends core.int>() x17;
-  void Function(int y, [Function x]) Function<B extends core.int>() x18;
-  void Function(int x2, [core.List<core.int> x3]) Function<B extends core.int>()
-      x19;
-  Function Function<A>(int x) Function<B extends core.int>() x20;
-  List<T> Function<A>(Function x) Function<B extends core.int>() x21;
-  List<A> Function<A>(List<Function> x) Function<B extends core.int>() x22;
-
-  U66({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(int y, {int x}) => null;
-  List<Function> m1(int y, {List<T> x}) => null;
-  List<T> m2(int x0, {core.List<core.int> x}) => null;
-  void m3({List<Function> x}) => null;
-  int Function(int x) m4<B extends core.int>() => null;
-  int Function(int y, [List<Function> x]) m5<B extends core.int>() => null;
-  int Function(int x0, [List<T> x1]) m6<B extends core.int>() => null;
-  Function Function({Function x}) m7<B extends core.int>() => null;
-  Function Function(List<T> x) m8<B extends core.int>() => null;
-  List<Function> Function(int x0, [Function x]) m9<B extends core.int>() =>
-      null;
-  List<Function> Function([core.List<core.int> x0]) m10<B extends core.int>() =>
-      null;
-  core.List<core.int> Function(int x, [int x0]) m11<B extends core.int>() =>
-      null;
-  core.List<core.int> Function(int y, {List<Function> x})
-      m12<B extends core.int>() => null;
-  List<T> Function([int x]) m13<B extends core.int>() => null;
-  List<T> Function(List<Function> x0) m14<B extends core.int>() => null;
-  List<T> Function(int x, [List<T> x0]) m15<B extends core.int>() => null;
-  Function(int x0, {Function x}) m16<B extends core.int>() => null;
-  Function([List<T> x]) m17<B extends core.int>() => null;
-  void Function(int y, [Function x]) m18<B extends core.int>() => null;
-  void Function(int x0, [core.List<core.int> x1]) m19<B extends core.int>() =>
-      null;
-  Function Function<A>(int x) m20<B extends core.int>() => null;
-  List<T> Function<A>(Function x) m21<B extends core.int>() => null;
-  List<A> Function<A>(List<Function> x) m22<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(int y, {int x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, {int x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(int y, {int x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function(int y, {List<T> x})
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, {List<T> x}) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function(int y, {List<T> x}));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-    // The static function has its T always set to int.
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isFalse(f1 is F1<bool>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    Expect.isFalse(confuse(f1) is F1<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        x1 = confuse(f1);
-      });
-      Expect.throws(() {
-        l1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        l1 = confuse(f1);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m1 is F1<int>);
-      Expect.equals(true, m1 is F1<bool>);
-      Expect.equals(true, confuse(m1) is F1<int>);
-      Expect.equals(true, confuse(m1) is F1<bool>);
-    }
-  }
-
-  /// List<T> Function(int x0, {core.List<core.int> x})
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x0, {core.List<core.int> x}) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int x0, {core.List<core.int> x}));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function({List<Function> x})
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function({List<Function> x}) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function({List<Function> x}));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// int Function(int x) Function<B extends core.int>()
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function(int x) Function<B extends core.int>() l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is int Function(int x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int y, [List<Function> x]) Function<B extends core.int>()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, [List<Function> x]) Function<B extends core.int>() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int y, [List<Function> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x2, [List<T> x3]) Function<B extends core.int>()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x2, [List<T> x3]) Function<B extends core.int>() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int x2, [List<T> x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function({Function x}) Function<B extends core.int>()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function({Function x}) Function<B extends core.int>() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(
-        m7 is Function Function({Function x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(List<T> x) Function<B extends core.int>()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(List<T> x) Function<B extends core.int>() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(
-        m8 is Function Function(List<T> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(int x1, [Function x]) Function<B extends core.int>()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, [Function x]) Function<B extends core.int>()
-        l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int x1, [Function x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function([core.List<core.int> x1]) Function<B extends core.int>()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([core.List<core.int> x1])
-        Function<B extends core.int>() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function([core.List<core.int> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int x, [int x1]) Function<B extends core.int>()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x, [int x1]) Function<B extends core.int>()
-        l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(int x, [int x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int y, {List<Function> x}) Function<B extends core.int>()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, {List<Function> x})
-        Function<B extends core.int>() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int y, {List<Function> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function([int x]) Function<B extends core.int>()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([int x]) Function<B extends core.int>() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(
-        m13 is List<T> Function([int x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(List<Function> x1) Function<B extends core.int>()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(List<Function> x1) Function<B extends core.int>() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(List<Function> x1)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x, [List<T> x1]) Function<B extends core.int>()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x, [List<T> x1]) Function<B extends core.int>() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x, [List<T> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x1, {Function x}) Function<B extends core.int>()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, {Function x}) Function<B extends core.int>() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function(int x1, {Function x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function([List<T> x]) Function<B extends core.int>()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function([List<T> x]) Function<B extends core.int>() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function([List<T> x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(int y, [Function x]) Function<B extends core.int>()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, [Function x]) Function<B extends core.int>() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int y, [Function x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x2, [core.List<core.int> x3]) Function<B extends core.int>()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x2, [core.List<core.int> x3])
-        Function<B extends core.int>() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int x2, [core.List<core.int> x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// Function Function<A>(int x) Function<B extends core.int>()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(int x) Function<B extends core.int>() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(
-        m20 is Function Function<A>(int x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(Function x) Function<B extends core.int>()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(Function x) Function<B extends core.int>() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(
-        m21 is List<T> Function<A>(Function x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>(List<Function> x) Function<B extends core.int>()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(List<Function> x) Function<B extends core.int>() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is List<A> Function<A>(List<Function> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U66().runTests();
-  new U66<int>(tIsInt: true).runTests();
-  new U66<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type67_test.dart b/tests/language_2/function_type/function_type67_test.dart
deleted file mode 100644
index 8c123813ae7..00000000000
--- a/tests/language_2/function_type/function_type67_test.dart
+++ /dev/null
@@ -1,977 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(Function x);
-typedef F1<T> = List<Function> Function();
-typedef F2<T> = List<T> Function(int y, {core.List<core.int> x});
-typedef F3<T> = void Function(int x0, {List<Function> x});
-typedef F4<T> = int Function(int x) Function<B extends core.int>(int x);
-typedef F5<T> = int Function(int y, [List<Function> x])
-    Function<B extends core.int>(int x);
-typedef F6<T> = int Function(int x2, [List<T> x3]) Function<B extends core.int>(
-    int x);
-typedef F7<T> = Function Function({Function x}) Function<B extends core.int>(
-    int x);
-typedef F8<T> = Function Function(List<T> x) Function<B extends core.int>(
-    int x);
-typedef F9<T> = List<Function> Function(int x1, [Function x])
-    Function<B extends core.int>(int x);
-typedef F10<T> = List<Function> Function([core.List<core.int> x1])
-    Function<B extends core.int>(int x);
-typedef F11<T> = core.List<core.int> Function(int x, [int x1])
-    Function<B extends core.int>(int x);
-typedef F12<T> = core.List<core.int> Function(int y, {List<Function> x})
-    Function<B extends core.int>(int x);
-typedef F13<T> = List<T> Function([int x]) Function<B extends core.int>(int x);
-typedef F14<T> = List<T> Function(List<Function> x1)
-    Function<B extends core.int>(int x);
-typedef F15<T> = List<T> Function(int x, [List<T> x1])
-    Function<B extends core.int>(int x);
-typedef F16<T> = Function(int x1, {Function x}) Function<B extends core.int>(
-    int x);
-typedef F17<T> = Function([List<T> x]) Function<B extends core.int>(int x);
-typedef F18<T> = void Function(int y, [Function x])
-    Function<B extends core.int>(int x);
-typedef F19<T> = void Function(int x2, [core.List<core.int> x3])
-    Function<B extends core.int>(int x);
-typedef F20<T> = Function Function<A>(int x) Function<B extends core.int>(
-    int x);
-typedef F21<T> = List<T> Function<A>(Function x) Function<B extends core.int>(
-    int x);
-typedef F22<T> = List<A> Function<A>(List<Function> x)
-    Function<B extends core.int>(int x);
-
-Function f0(Function x) => null;
-List<Function> f1() => null;
-List<int> f2(int y, {core.List<core.int> x}) => null;
-void f3(int x0, {List<Function> x}) => null;
-int Function(int x) f4<B extends core.int>(int x) => null;
-int Function(int y, [List<Function> x]) f5<B extends core.int>(int x) => null;
-int Function(int x0, [List<int> x1]) f6<B extends core.int>(int x) => null;
-Function Function({Function x}) f7<B extends core.int>(int x) => null;
-Function Function(List<int> x) f8<B extends core.int>(int x) => null;
-List<Function> Function(int x0, [Function x]) f9<B extends core.int>(int x) =>
-    null;
-List<Function> Function([core.List<core.int> x0]) f10<B extends core.int>(
-        int x) =>
-    null;
-core.List<core.int> Function(int x, [int x0]) f11<B extends core.int>(int x) =>
-    null;
-core.List<core.int> Function(int y, {List<Function> x}) f12<B extends core.int>(
-        int x) =>
-    null;
-List<int> Function([int x]) f13<B extends core.int>(int x) => null;
-List<int> Function(List<Function> x0) f14<B extends core.int>(int x) => null;
-List<int> Function(int x, [List<int> x0]) f15<B extends core.int>(int x) =>
-    null;
-Function(int x0, {Function x}) f16<B extends core.int>(int x) => null;
-Function([List<int> x]) f17<B extends core.int>(int x) => null;
-void Function(int y, [Function x]) f18<B extends core.int>(int x) => null;
-void Function(int x0, [core.List<core.int> x1]) f19<B extends core.int>(
-        int x) =>
-    null;
-Function Function<A>(int x) f20<B extends core.int>(int x) => null;
-List<int> Function<A>(Function x) f21<B extends core.int>(int x) => null;
-List<A> Function<A>(List<Function> x) f22<B extends core.int>(int x) => null;
-
-class U67<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(Function x) x0;
-  List<Function> Function() x1;
-  List<T> Function(int y, {core.List<core.int> x}) x2;
-  void Function(int x0, {List<Function> x}) x3;
-  int Function(int x) Function<B extends core.int>(int x) x4;
-  int Function(int y, [List<Function> x]) Function<B extends core.int>(int x)
-      x5;
-  int Function(int x2, [List<T> x3]) Function<B extends core.int>(int x) x6;
-  Function Function({Function x}) Function<B extends core.int>(int x) x7;
-  Function Function(List<T> x) Function<B extends core.int>(int x) x8;
-  List<Function> Function(int x1, [Function x]) Function<B extends core.int>(
-      int x) x9;
-  List<Function> Function([core.List<core.int> x1])
-      Function<B extends core.int>(int x) x10;
-  core.List<core.int> Function(int x, [int x1]) Function<B extends core.int>(
-      int x) x11;
-  core.List<core.int> Function(int y, {List<Function> x})
-      Function<B extends core.int>(int x) x12;
-  List<T> Function([int x]) Function<B extends core.int>(int x) x13;
-  List<T> Function(List<Function> x1) Function<B extends core.int>(int x) x14;
-  List<T> Function(int x, [List<T> x1]) Function<B extends core.int>(int x) x15;
-  Function(int x1, {Function x}) Function<B extends core.int>(int x) x16;
-  Function([List<T> x]) Function<B extends core.int>(int x) x17;
-  void Function(int y, [Function x]) Function<B extends core.int>(int x) x18;
-  void Function(int x2, [core.List<core.int> x3]) Function<B extends core.int>(
-      int x) x19;
-  Function Function<A>(int x) Function<B extends core.int>(int x) x20;
-  List<T> Function<A>(Function x) Function<B extends core.int>(int x) x21;
-  List<A> Function<A>(List<Function> x) Function<B extends core.int>(int x) x22;
-
-  U67({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(Function x) => null;
-  List<Function> m1() => null;
-  List<T> m2(int y, {core.List<core.int> x}) => null;
-  void m3(int x0, {List<Function> x}) => null;
-  int Function(int x) m4<B extends core.int>(int x) => null;
-  int Function(int y, [List<Function> x]) m5<B extends core.int>(int x) => null;
-  int Function(int x0, [List<T> x1]) m6<B extends core.int>(int x) => null;
-  Function Function({Function x}) m7<B extends core.int>(int x) => null;
-  Function Function(List<T> x) m8<B extends core.int>(int x) => null;
-  List<Function> Function(int x0, [Function x]) m9<B extends core.int>(int x) =>
-      null;
-  List<Function> Function([core.List<core.int> x0]) m10<B extends core.int>(
-          int x) =>
-      null;
-  core.List<core.int> Function(int x, [int x0]) m11<B extends core.int>(
-          int x) =>
-      null;
-  core.List<core.int> Function(int y, {List<Function> x})
-      m12<B extends core.int>(int x) => null;
-  List<T> Function([int x]) m13<B extends core.int>(int x) => null;
-  List<T> Function(List<Function> x0) m14<B extends core.int>(int x) => null;
-  List<T> Function(int x, [List<T> x0]) m15<B extends core.int>(int x) => null;
-  Function(int x0, {Function x}) m16<B extends core.int>(int x) => null;
-  Function([List<T> x]) m17<B extends core.int>(int x) => null;
-  void Function(int y, [Function x]) m18<B extends core.int>(int x) => null;
-  void Function(int x0, [core.List<core.int> x1]) m19<B extends core.int>(
-          int x) =>
-      null;
-  Function Function<A>(int x) m20<B extends core.int>(int x) => null;
-  List<T> Function<A>(Function x) m21<B extends core.int>(int x) => null;
-  List<A> Function<A>(List<Function> x) m22<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(Function x)
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(Function x) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(Function x));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// List<Function> Function()
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function() l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is List<Function> Function());
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(int y, {core.List<core.int> x})
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, {core.List<core.int> x}) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int y, {core.List<core.int> x}));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(int x0, {List<Function> x})
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int x0, {List<Function> x}) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int x0, {List<Function> x}));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// int Function(int x) Function<B extends core.int>(int x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function(int x) Function<B extends core.int>(int x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(
-        m4 is int Function(int x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int y, [List<Function> x]) Function<B extends core.int>(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, [List<Function> x]) Function<B extends core.int>(int x)
-        l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int y, [List<Function> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x2, [List<T> x3]) Function<B extends core.int>(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x2, [List<T> x3]) Function<B extends core.int>(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int x2, [List<T> x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function({Function x}) Function<B extends core.int>(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function({Function x}) Function<B extends core.int>(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function({Function x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(List<T> x) Function<B extends core.int>(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(List<T> x) Function<B extends core.int>(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(
-        m8 is Function Function(List<T> x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(int x1, [Function x]) Function<B extends core.int>(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, [Function x]) Function<B extends core.int>(
-        int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int x1, [Function x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function([core.List<core.int> x1]) Function<B extends core.int>(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([core.List<core.int> x1])
-        Function<B extends core.int>(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function([core.List<core.int> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int x, [int x1]) Function<B extends core.int>(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x, [int x1]) Function<B extends core.int>(
-        int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(int x, [int x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int y, {List<Function> x}) Function<B extends core.int>(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, {List<Function> x})
-        Function<B extends core.int>(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int y, {List<Function> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function([int x]) Function<B extends core.int>(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([int x]) Function<B extends core.int>(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(
-        m13 is List<T> Function([int x]) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(List<Function> x1) Function<B extends core.int>(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(List<Function> x1) Function<B extends core.int>(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(List<Function> x1)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x, [List<T> x1]) Function<B extends core.int>(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x, [List<T> x1]) Function<B extends core.int>(int x)
-        l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x, [List<T> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x1, {Function x}) Function<B extends core.int>(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, {Function x}) Function<B extends core.int>(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x1, {Function x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function([List<T> x]) Function<B extends core.int>(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function([List<T> x]) Function<B extends core.int>(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(
-        m17 is Function([List<T> x]) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(int y, [Function x]) Function<B extends core.int>(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, [Function x]) Function<B extends core.int>(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int y, [Function x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x2, [core.List<core.int> x3]) Function<B extends core.int>(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x2, [core.List<core.int> x3])
-        Function<B extends core.int>(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int x2, [core.List<core.int> x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// Function Function<A>(int x) Function<B extends core.int>(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(int x) Function<B extends core.int>(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(
-        m20 is Function Function<A>(int x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(Function x) Function<B extends core.int>(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(Function x) Function<B extends core.int>(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<T> Function<A>(Function x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>(List<Function> x) Function<B extends core.int>(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(List<Function> x) Function<B extends core.int>(int x)
-        l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is List<A> Function<A>(List<Function> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U67().runTests();
-  new U67<int>(tIsInt: true).runTests();
-  new U67<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type68_test.dart b/tests/language_2/function_type/function_type68_test.dart
deleted file mode 100644
index 39aad3859e1..00000000000
--- a/tests/language_2/function_type/function_type68_test.dart
+++ /dev/null
@@ -1,917 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function([Function x]);
-typedef F1<T> = core.List<core.int> Function(int x);
-typedef F2<T> = List<T> Function(List<T> x);
-typedef F3<T> = void Function(int y, {List<Function> x});
-typedef F4<T> = int Function([int x]) Function();
-typedef F5<T> = int Function(List<Function> x0) Function();
-typedef F6<T> = int Function(int x, [List<T> x2]) Function();
-typedef F7<T> = Function Function(int x0, {Function x}) Function();
-typedef F8<T> = Function Function([List<T> x]) Function();
-typedef F9<T> = List<Function> Function(int y, [Function x]) Function();
-typedef F10<T> = List<Function> Function(int x1, [core.List<core.int> x2])
-    Function();
-typedef F11<T> = core.List<core.int> Function({int x}) Function();
-typedef F12<T> = core.List<core.int> Function(core.List<core.int> x) Function();
-typedef F13<T> = List<T> Function(int x0, [int x]) Function();
-typedef F14<T> = List<T> Function([List<Function> x1]) Function();
-typedef F15<T> = List<T> Function({List<T> x}) Function();
-typedef F16<T> = Function(int y, {Function x}) Function();
-typedef F17<T> = Function(int x0, [List<T> x]) Function();
-typedef F18<T> = void Function(Function x0) Function();
-typedef F19<T> = void Function(int x, [core.List<core.int> x2]) Function();
-typedef F20<T> = Function Function<A>(Function x) Function();
-typedef F21<T> = List<T> Function<A>(List<Function> x) Function();
-typedef F22<T> = List<A> Function<A>(core.List<core.int> x) Function();
-
-Function f0([Function x]) => null;
-core.List<core.int> f1(int x) => null;
-List<int> f2(List<int> x) => null;
-void f3(int y, {List<Function> x}) => null;
-int Function([int x]) f4() => null;
-int Function(List<Function> x0) f5() => null;
-int Function(int x, [List<int> x0]) f6() => null;
-Function Function(int x0, {Function x}) f7() => null;
-Function Function([List<int> x]) f8() => null;
-List<Function> Function(int y, [Function x]) f9() => null;
-List<Function> Function(int x0, [core.List<core.int> x1]) f10() => null;
-core.List<core.int> Function({int x}) f11() => null;
-core.List<core.int> Function(core.List<core.int> x) f12() => null;
-List<int> Function(int x0, [int x]) f13() => null;
-List<int> Function([List<Function> x0]) f14() => null;
-List<int> Function({List<int> x}) f15() => null;
-Function(int y, {Function x}) f16() => null;
-Function(int x0, [List<int> x]) f17() => null;
-void Function(Function x0) f18() => null;
-void Function(int x, [core.List<core.int> x0]) f19() => null;
-Function Function<A>(Function x) f20() => null;
-List<int> Function<A>(List<Function> x) f21() => null;
-List<A> Function<A>(core.List<core.int> x) f22() => null;
-
-class U68<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function([Function x]) x0;
-  core.List<core.int> Function(int x) x1;
-  List<T> Function(List<T> x) x2;
-  void Function(int y, {List<Function> x}) x3;
-  int Function([int x]) Function() x4;
-  int Function(List<Function> x0) Function() x5;
-  int Function(int x, [List<T> x2]) Function() x6;
-  Function Function(int x0, {Function x}) Function() x7;
-  Function Function([List<T> x]) Function() x8;
-  List<Function> Function(int y, [Function x]) Function() x9;
-  List<Function> Function(int x1, [core.List<core.int> x2]) Function() x10;
-  core.List<core.int> Function({int x}) Function() x11;
-  core.List<core.int> Function(core.List<core.int> x) Function() x12;
-  List<T> Function(int x0, [int x]) Function() x13;
-  List<T> Function([List<Function> x1]) Function() x14;
-  List<T> Function({List<T> x}) Function() x15;
-  Function(int y, {Function x}) Function() x16;
-  Function(int x0, [List<T> x]) Function() x17;
-  void Function(Function x0) Function() x18;
-  void Function(int x, [core.List<core.int> x2]) Function() x19;
-  Function Function<A>(Function x) Function() x20;
-  List<T> Function<A>(List<Function> x) Function() x21;
-  List<A> Function<A>(core.List<core.int> x) Function() x22;
-
-  U68({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0([Function x]) => null;
-  core.List<core.int> m1(int x) => null;
-  List<T> m2(List<T> x) => null;
-  void m3(int y, {List<Function> x}) => null;
-  int Function([int x]) m4() => null;
-  int Function(List<Function> x0) m5() => null;
-  int Function(int x, [List<T> x0]) m6() => null;
-  Function Function(int x0, {Function x}) m7() => null;
-  Function Function([List<T> x]) m8() => null;
-  List<Function> Function(int y, [Function x]) m9() => null;
-  List<Function> Function(int x0, [core.List<core.int> x1]) m10() => null;
-  core.List<core.int> Function({int x}) m11() => null;
-  core.List<core.int> Function(core.List<core.int> x) m12() => null;
-  List<T> Function(int x0, [int x]) m13() => null;
-  List<T> Function([List<Function> x0]) m14() => null;
-  List<T> Function({List<T> x}) m15() => null;
-  Function(int y, {Function x}) m16() => null;
-  Function(int x0, [List<T> x]) m17() => null;
-  void Function(Function x0) m18() => null;
-  void Function(int x, [core.List<core.int> x0]) m19() => null;
-  Function Function<A>(Function x) m20() => null;
-  List<T> Function<A>(List<Function> x) m21() => null;
-  List<A> Function<A>(core.List<core.int> x) m22() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function([Function x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function([Function x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function([Function x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function(int x)
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function(int x));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(List<T> x)
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(List<T> x) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(List<T> x));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(int y, {List<Function> x})
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, {List<Function> x}) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int y, {List<Function> x}));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// int Function([int x]) Function()
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function([int x]) Function() l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is int Function([int x]) Function());
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(List<Function> x0) Function()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(List<Function> x0) Function() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(List<Function> x0) Function());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x, [List<T> x2]) Function()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x, [List<T> x2]) Function() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int x, [List<T> x2]) Function());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(int x0, {Function x}) Function()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x0, {Function x}) Function() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x0, {Function x}) Function());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function([List<T> x]) Function()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function([List<T> x]) Function() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function([List<T> x]) Function());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(int y, [Function x]) Function()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, [Function x]) Function() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(
-        m9 is List<Function> Function(int y, [Function x]) Function());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x1, [core.List<core.int> x2]) Function()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, [core.List<core.int> x2]) Function() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x1,
-            [core.List<core.int> x2])
-        Function());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function({int x}) Function()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function({int x}) Function() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function({int x}) Function());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(core.List<core.int> x) Function()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(core.List<core.int> x) Function() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(
-        m12 is core.List<core.int> Function(core.List<core.int> x) Function());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int x0, [int x]) Function()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x0, [int x]) Function() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function(int x0, [int x]) Function());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function([List<Function> x1]) Function()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([List<Function> x1]) Function() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function([List<Function> x1]) Function());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function({List<T> x}) Function()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function({List<T> x}) Function() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function({List<T> x}) Function());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int y, {Function x}) Function()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int y, {Function x}) Function() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int y, {Function x}) Function());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x0, [List<T> x]) Function()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x0, [List<T> x]) Function() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x0, [List<T> x]) Function());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(Function x0) Function()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(Function x0) Function() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(Function x0) Function());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x, [core.List<core.int> x2]) Function()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x, [core.List<core.int> x2]) Function() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(
-        m19 is void Function(int x, [core.List<core.int> x2]) Function());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// Function Function<A>(Function x) Function()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(Function x) Function() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is Function Function<A>(Function x) Function());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(List<Function> x) Function()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(List<Function> x) Function() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<T> Function<A>(List<Function> x) Function());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>(core.List<core.int> x) Function()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(core.List<core.int> x) Function() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is List<A> Function<A>(core.List<core.int> x) Function());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U68().runTests();
-  new U68<int>(tIsInt: true).runTests();
-  new U68<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type69_test.dart b/tests/language_2/function_type/function_type69_test.dart
deleted file mode 100644
index 8ad28c6d053..00000000000
--- a/tests/language_2/function_type/function_type69_test.dart
+++ /dev/null
@@ -1,921 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(int x0, [Function x]);
-typedef F1<T> = core.List<core.int> Function([int x]);
-typedef F2<T> = List<T> Function([List<T> x]);
-typedef F3<T> = void Function(core.List<core.int> x);
-typedef F4<T> = int Function([int x]) Function(int x);
-typedef F5<T> = int Function(List<Function> x1) Function(int x);
-typedef F6<T> = int Function(int x, [List<T> x1]) Function(int x);
-typedef F7<T> = Function Function(int x1, {Function x}) Function(int x);
-typedef F8<T> = Function Function([List<T> x]) Function(int x);
-typedef F9<T> = List<Function> Function(int y, [Function x]) Function(int x);
-typedef F10<T> = List<Function> Function(int x2, [core.List<core.int> x3])
-    Function(int x);
-typedef F11<T> = core.List<core.int> Function({int x}) Function(int x);
-typedef F12<T> = core.List<core.int> Function(core.List<core.int> x) Function(
-    int x);
-typedef F13<T> = List<T> Function(int x1, [int x]) Function(int x);
-typedef F14<T> = List<T> Function([List<Function> x1]) Function(int x);
-typedef F15<T> = List<T> Function({List<T> x}) Function(int x);
-typedef F16<T> = Function(int y, {Function x}) Function(int x);
-typedef F17<T> = Function(int x1, [List<T> x]) Function(int x);
-typedef F18<T> = void Function(Function x1) Function(int x);
-typedef F19<T> = void Function(int x, [core.List<core.int> x1]) Function(int x);
-typedef F20<T> = Function Function<A>(Function x) Function(int x);
-typedef F21<T> = List<T> Function<A>(List<Function> x) Function(int x);
-typedef F22<T> = List<A> Function<A>(core.List<core.int> x) Function(int x);
-
-Function f0(int x0, [Function x]) => null;
-core.List<core.int> f1([int x]) => null;
-List<int> f2([List<int> x]) => null;
-void f3(core.List<core.int> x) => null;
-int Function([int x]) f4(int x) => null;
-int Function(List<Function> x0) f5(int x) => null;
-int Function(int x, [List<int> x0]) f6(int x) => null;
-Function Function(int x0, {Function x}) f7(int x) => null;
-Function Function([List<int> x]) f8(int x) => null;
-List<Function> Function(int y, [Function x]) f9(int x) => null;
-List<Function> Function(int x0, [core.List<core.int> x1]) f10(int x) => null;
-core.List<core.int> Function({int x}) f11(int x) => null;
-core.List<core.int> Function(core.List<core.int> x) f12(int x) => null;
-List<int> Function(int x0, [int x]) f13(int x) => null;
-List<int> Function([List<Function> x0]) f14(int x) => null;
-List<int> Function({List<int> x}) f15(int x) => null;
-Function(int y, {Function x}) f16(int x) => null;
-Function(int x0, [List<int> x]) f17(int x) => null;
-void Function(Function x0) f18(int x) => null;
-void Function(int x, [core.List<core.int> x0]) f19(int x) => null;
-Function Function<A>(Function x) f20(int x) => null;
-List<int> Function<A>(List<Function> x) f21(int x) => null;
-List<A> Function<A>(core.List<core.int> x) f22(int x) => null;
-
-class U69<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(int x0, [Function x]) x0;
-  core.List<core.int> Function([int x]) x1;
-  List<T> Function([List<T> x]) x2;
-  void Function(core.List<core.int> x) x3;
-  int Function([int x]) Function(int x) x4;
-  int Function(List<Function> x1) Function(int x) x5;
-  int Function(int x, [List<T> x1]) Function(int x) x6;
-  Function Function(int x1, {Function x}) Function(int x) x7;
-  Function Function([List<T> x]) Function(int x) x8;
-  List<Function> Function(int y, [Function x]) Function(int x) x9;
-  List<Function> Function(int x2, [core.List<core.int> x3]) Function(int x) x10;
-  core.List<core.int> Function({int x}) Function(int x) x11;
-  core.List<core.int> Function(core.List<core.int> x) Function(int x) x12;
-  List<T> Function(int x1, [int x]) Function(int x) x13;
-  List<T> Function([List<Function> x1]) Function(int x) x14;
-  List<T> Function({List<T> x}) Function(int x) x15;
-  Function(int y, {Function x}) Function(int x) x16;
-  Function(int x1, [List<T> x]) Function(int x) x17;
-  void Function(Function x1) Function(int x) x18;
-  void Function(int x, [core.List<core.int> x1]) Function(int x) x19;
-  Function Function<A>(Function x) Function(int x) x20;
-  List<T> Function<A>(List<Function> x) Function(int x) x21;
-  List<A> Function<A>(core.List<core.int> x) Function(int x) x22;
-
-  U69({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(int x0, [Function x]) => null;
-  core.List<core.int> m1([int x]) => null;
-  List<T> m2([List<T> x]) => null;
-  void m3(core.List<core.int> x) => null;
-  int Function([int x]) m4(int x) => null;
-  int Function(List<Function> x0) m5(int x) => null;
-  int Function(int x, [List<T> x0]) m6(int x) => null;
-  Function Function(int x0, {Function x}) m7(int x) => null;
-  Function Function([List<T> x]) m8(int x) => null;
-  List<Function> Function(int y, [Function x]) m9(int x) => null;
-  List<Function> Function(int x0, [core.List<core.int> x1]) m10(int x) => null;
-  core.List<core.int> Function({int x}) m11(int x) => null;
-  core.List<core.int> Function(core.List<core.int> x) m12(int x) => null;
-  List<T> Function(int x0, [int x]) m13(int x) => null;
-  List<T> Function([List<Function> x0]) m14(int x) => null;
-  List<T> Function({List<T> x}) m15(int x) => null;
-  Function(int y, {Function x}) m16(int x) => null;
-  Function(int x0, [List<T> x]) m17(int x) => null;
-  void Function(Function x0) m18(int x) => null;
-  void Function(int x, [core.List<core.int> x0]) m19(int x) => null;
-  Function Function<A>(Function x) m20(int x) => null;
-  List<T> Function<A>(List<Function> x) m21(int x) => null;
-  List<A> Function<A>(core.List<core.int> x) m22(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(int x0, [Function x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x0, [Function x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(int x0, [Function x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function([int x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([int x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function([int x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function([List<T> x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([List<T> x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function([List<T> x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(core.List<core.int> x)
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(core.List<core.int> x) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(core.List<core.int> x));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// int Function([int x]) Function(int x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function([int x]) Function(int x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is int Function([int x]) Function(int x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(List<Function> x1) Function(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(List<Function> x1) Function(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(List<Function> x1) Function(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x, [List<T> x1]) Function(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x, [List<T> x1]) Function(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int x, [List<T> x1]) Function(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(int x1, {Function x}) Function(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, {Function x}) Function(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(
-        m7 is Function Function(int x1, {Function x}) Function(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function([List<T> x]) Function(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function([List<T> x]) Function(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function([List<T> x]) Function(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(int y, [Function x]) Function(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, [Function x]) Function(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(
-        m9 is List<Function> Function(int y, [Function x]) Function(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x2, [core.List<core.int> x3]) Function(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x2, [core.List<core.int> x3]) Function(int x)
-        l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x2,
-            [core.List<core.int> x3])
-        Function(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function({int x}) Function(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function({int x}) Function(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function({int x}) Function(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(core.List<core.int> x) Function(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(core.List<core.int> x) Function(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(core.List<core.int> x)
-        Function(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int x1, [int x]) Function(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, [int x]) Function(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function(int x1, [int x]) Function(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function([List<Function> x1]) Function(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([List<Function> x1]) Function(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function([List<Function> x1]) Function(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function({List<T> x}) Function(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function({List<T> x}) Function(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function({List<T> x}) Function(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int y, {Function x}) Function(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int y, {Function x}) Function(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int y, {Function x}) Function(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x1, [List<T> x]) Function(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, [List<T> x]) Function(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x1, [List<T> x]) Function(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(Function x1) Function(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(Function x1) Function(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(Function x1) Function(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x, [core.List<core.int> x1]) Function(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x, [core.List<core.int> x1]) Function(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(
-        m19 is void Function(int x, [core.List<core.int> x1]) Function(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// Function Function<A>(Function x) Function(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(Function x) Function(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is Function Function<A>(Function x) Function(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(List<Function> x) Function(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(List<Function> x) Function(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<T> Function<A>(List<Function> x) Function(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>(core.List<core.int> x) Function(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(core.List<core.int> x) Function(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(
-        m22 is List<A> Function<A>(core.List<core.int> x) Function(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U69().runTests();
-  new U69<int>(tIsInt: true).runTests();
-  new U69<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type6_test.dart b/tests/language_2/function_type/function_type6_test.dart
deleted file mode 100644
index 761ecec2612..00000000000
--- a/tests/language_2/function_type/function_type6_test.dart
+++ /dev/null
@@ -1,968 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int x1, [int x2]);
-typedef F1<T> = Function Function(int x1, [List<T> x2]);
-typedef F2<T> = core.List<core.int> Function([core.List<core.int> x1]);
-typedef F3<T> = Function(List<Function> x0);
-typedef F4<T> = Function Function<A>(A x);
-typedef F5<T> = int Function(int y, {int x}) Function<B extends core.int>();
-typedef F6<T> = int Function(int x1, [core.List<core.int> x])
-    Function<B extends core.int>();
-typedef F7<T> = Function Function(int x1) Function<B extends core.int>();
-typedef F8<T> = Function Function(int x, [List<Function> x1])
-    Function<B extends core.int>();
-typedef F9<T> = Function Function(int y, {List<T> x})
-    Function<B extends core.int>();
-typedef F10<T> = List<Function> Function([List<Function> x])
-    Function<B extends core.int>();
-typedef F11<T> = List<Function> Function(List<T> x1)
-    Function<B extends core.int>();
-typedef F12<T> = core.List<core.int> Function(int x2, [Function x3])
-    Function<B extends core.int>();
-typedef F13<T> = core.List<core.int> Function(int x1, {core.List<core.int> x})
-    Function<B extends core.int>();
-typedef F14<T> = List<T> Function(Function x) Function<B extends core.int>();
-typedef F15<T> = List<T> Function(int y, [core.List<core.int> x])
-    Function<B extends core.int>();
-typedef F16<T> = Function([int x1]) Function<B extends core.int>();
-typedef F17<T> = Function({List<Function> x}) Function<B extends core.int>();
-typedef F18<T> = Function() Function<B extends core.int>();
-typedef F19<T> = void Function(int x1, [List<Function> x])
-    Function<B extends core.int>();
-typedef F20<T> = void Function([List<T> x1]) Function<B extends core.int>();
-typedef F21<T> = List<Function> Function<A>(List<Function> x)
-    Function<B extends core.int>();
-typedef F22<T> = Function<A>(core.List<core.int> x)
-    Function<B extends core.int>();
-typedef F23<T> = void Function<A>(List<T> x) Function<B extends core.int>();
-
-int f0(int x0, [int x1]) => null;
-Function f1(int x0, [List<int> x1]) => null;
-core.List<core.int> f2([core.List<core.int> x0]) => null;
-f3(List<Function> x0) => null;
-Function f4<A>(A x) => null;
-int Function(int y, {int x}) f5<B extends core.int>() => null;
-int Function(int x0, [core.List<core.int> x]) f6<B extends core.int>() => null;
-Function Function(int x0) f7<B extends core.int>() => null;
-Function Function(int x, [List<Function> x0]) f8<B extends core.int>() => null;
-Function Function(int y, {List<int> x}) f9<B extends core.int>() => null;
-List<Function> Function([List<Function> x]) f10<B extends core.int>() => null;
-List<Function> Function(List<int> x0) f11<B extends core.int>() => null;
-core.List<core.int> Function(int x0, [Function x1]) f12<B extends core.int>() =>
-    null;
-core.List<core.int> Function(int x0, {core.List<core.int> x})
-    f13<B extends core.int>() => null;
-List<int> Function(Function x) f14<B extends core.int>() => null;
-List<int> Function(int y, [core.List<core.int> x]) f15<B extends core.int>() =>
-    null;
-Function([int x0]) f16<B extends core.int>() => null;
-Function({List<Function> x}) f17<B extends core.int>() => null;
-Function() f18<B extends core.int>() => null;
-void Function(int x0, [List<Function> x]) f19<B extends core.int>() => null;
-void Function([List<int> x0]) f20<B extends core.int>() => null;
-List<Function> Function<A>(List<Function> x) f21<B extends core.int>() => null;
-Function<A>(core.List<core.int> x) f22<B extends core.int>() => null;
-void Function<A>(List<int> x) f23<B extends core.int>() => null;
-
-class U6<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int x1, [int x2]) x0;
-  Function Function(int x1, [List<T> x2]) x1;
-  core.List<core.int> Function([core.List<core.int> x1]) x2;
-  Function(List<Function> x0) x3;
-  Function Function<A>(A x) x4;
-  int Function(int y, {int x}) Function<B extends core.int>() x5;
-  int Function(int x1, [core.List<core.int> x]) Function<B extends core.int>()
-      x6;
-  Function Function(int x1) Function<B extends core.int>() x7;
-  Function Function(int x, [List<Function> x1]) Function<B extends core.int>()
-      x8;
-  Function Function(int y, {List<T> x}) Function<B extends core.int>() x9;
-  List<Function> Function([List<Function> x]) Function<B extends core.int>()
-      x10;
-  List<Function> Function(List<T> x1) Function<B extends core.int>() x11;
-  core.List<core.int> Function(int x2, [Function x3])
-      Function<B extends core.int>() x12;
-  core.List<core.int> Function(int x1, {core.List<core.int> x})
-      Function<B extends core.int>() x13;
-  List<T> Function(Function x) Function<B extends core.int>() x14;
-  List<T> Function(int y, [core.List<core.int> x])
-      Function<B extends core.int>() x15;
-  Function([int x1]) Function<B extends core.int>() x16;
-  Function({List<Function> x}) Function<B extends core.int>() x17;
-  Function() Function<B extends core.int>() x18;
-  void Function(int x1, [List<Function> x]) Function<B extends core.int>() x19;
-  void Function([List<T> x1]) Function<B extends core.int>() x20;
-  List<Function> Function<A>(List<Function> x) Function<B extends core.int>()
-      x21;
-  Function<A>(core.List<core.int> x) Function<B extends core.int>() x22;
-  void Function<A>(List<T> x) Function<B extends core.int>() x23;
-
-  U6({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int x0, [int x1]) => null;
-  Function m1(int x0, [List<T> x1]) => null;
-  core.List<core.int> m2([core.List<core.int> x0]) => null;
-  m3(List<Function> x0) => null;
-  Function m4<A>(A x) => null;
-  int Function(int y, {int x}) m5<B extends core.int>() => null;
-  int Function(int x0, [core.List<core.int> x]) m6<B extends core.int>() =>
-      null;
-  Function Function(int x0) m7<B extends core.int>() => null;
-  Function Function(int x, [List<Function> x0]) m8<B extends core.int>() =>
-      null;
-  Function Function(int y, {List<T> x}) m9<B extends core.int>() => null;
-  List<Function> Function([List<Function> x]) m10<B extends core.int>() => null;
-  List<Function> Function(List<T> x0) m11<B extends core.int>() => null;
-  core.List<core.int> Function(int x0, [Function x1])
-      m12<B extends core.int>() => null;
-  core.List<core.int> Function(int x0, {core.List<core.int> x})
-      m13<B extends core.int>() => null;
-  List<T> Function(Function x) m14<B extends core.int>() => null;
-  List<T> Function(int y, [core.List<core.int> x]) m15<B extends core.int>() =>
-      null;
-  Function([int x0]) m16<B extends core.int>() => null;
-  Function({List<Function> x}) m17<B extends core.int>() => null;
-  Function() m18<B extends core.int>() => null;
-  void Function(int x0, [List<Function> x]) m19<B extends core.int>() => null;
-  void Function([List<T> x0]) m20<B extends core.int>() => null;
-  List<Function> Function<A>(List<Function> x) m21<B extends core.int>() =>
-      null;
-  Function<A>(core.List<core.int> x) m22<B extends core.int>() => null;
-  void Function<A>(List<T> x) m23<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int x1, [int x2])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, [int x2]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int x1, [int x2]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// Function Function(int x1, [List<T> x2])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, [List<T> x2]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is Function Function(int x1, [List<T> x2]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-    // The static function has its T always set to int.
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isFalse(f1 is F1<bool>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    Expect.isFalse(confuse(f1) is F1<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        x1 = confuse(f1);
-      });
-      Expect.throws(() {
-        l1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        l1 = confuse(f1);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m1 is F1<int>);
-      Expect.equals(true, m1 is F1<bool>);
-      Expect.equals(true, confuse(m1) is F1<int>);
-      Expect.equals(true, confuse(m1) is F1<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function([core.List<core.int> x1])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([core.List<core.int> x1]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is core.List<core.int> Function([core.List<core.int> x1]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// Function(List<Function> x0)
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function(List<Function> x0) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function(List<Function> x0));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// Function Function<A>(A x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(A x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is Function Function<A>(A x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int y, {int x}) Function<B extends core.int>()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, {int x}) Function<B extends core.int>() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(
-        m5 is int Function(int y, {int x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x1, [core.List<core.int> x]) Function<B extends core.int>()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, [core.List<core.int> x]) Function<B extends core.int>()
-        l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int x1, [core.List<core.int> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int x1) Function<B extends core.int>()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1) Function<B extends core.int>() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(
-        m7 is Function Function(int x1) Function<B extends core.int>());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x, [List<Function> x1]) Function<B extends core.int>()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x, [List<Function> x1]) Function<B extends core.int>()
-        l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x, [List<Function> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// Function Function(int y, {List<T> x}) Function<B extends core.int>()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, {List<T> x}) Function<B extends core.int>() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is Function Function(int y, {List<T> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-    // The static function has its T always set to int.
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isFalse(f9 is F9<bool>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    Expect.isFalse(confuse(f9) is F9<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x9 = (f9 as dynamic);
-      });
-      Expect.throws(() {
-        x9 = confuse(f9);
-      });
-      Expect.throws(() {
-        l9 = (f9 as dynamic);
-      });
-      Expect.throws(() {
-        l9 = confuse(f9);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m9 is F9<int>);
-      Expect.equals(tIsBool, m9 is F9<bool>);
-      Expect.equals(tIsInt, confuse(m9) is F9<int>);
-      Expect.equals(tIsBool, confuse(m9) is F9<bool>);
-    }
-  }
-
-  /// List<Function> Function([List<Function> x]) Function<B extends core.int>()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([List<Function> x]) Function<B extends core.int>()
-        l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function([List<Function> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function(List<T> x1) Function<B extends core.int>()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(List<T> x1) Function<B extends core.int>() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is List<Function> Function(List<T> x1)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int x2, [Function x3]) Function<B extends core.int>()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x2, [Function x3])
-        Function<B extends core.int>() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x2, [Function x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int x1, {core.List<core.int> x}) Function<B extends core.int>()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, {core.List<core.int> x})
-        Function<B extends core.int>() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(int x1,
-            {core.List<core.int> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-  }
-
-  /// List<T> Function(Function x) Function<B extends core.int>()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(Function x) Function<B extends core.int>() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(
-        m14 is List<T> Function(Function x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, [core.List<core.int> x]) Function<B extends core.int>()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, [core.List<core.int> x])
-        Function<B extends core.int>() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int y, [core.List<core.int> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function([int x1]) Function<B extends core.int>()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function([int x1]) Function<B extends core.int>() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function([int x1]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function({List<Function> x}) Function<B extends core.int>()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function({List<Function> x}) Function<B extends core.int>() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(
-        m17 is Function({List<Function> x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// Function() Function<B extends core.int>()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    Function() Function<B extends core.int>() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is Function() Function<B extends core.int>());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x1, [List<Function> x]) Function<B extends core.int>()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, [List<Function> x]) Function<B extends core.int>()
-        l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int x1, [List<Function> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function([List<T> x1]) Function<B extends core.int>()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function([List<T> x1]) Function<B extends core.int>() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(
-        m20 is void Function([List<T> x1]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(List<Function> x) Function<B extends core.int>()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(List<Function> x) Function<B extends core.int>()
-        l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<Function> Function<A>(List<Function> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// Function<A>(core.List<core.int> x) Function<B extends core.int>()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    Function<A>(core.List<core.int> x) Function<B extends core.int>() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is Function<A>(core.List<core.int> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// void Function<A>(List<T> x) Function<B extends core.int>()
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(List<T> x) Function<B extends core.int>() l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(
-        m23 is void Function<A>(List<T> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-    // The static function has its T always set to int.
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isFalse(f23 is F23<bool>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    Expect.isFalse(confuse(f23) is F23<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x23 = (f23 as dynamic);
-      });
-      Expect.throws(() {
-        x23 = confuse(f23);
-      });
-      Expect.throws(() {
-        l23 = (f23 as dynamic);
-      });
-      Expect.throws(() {
-        l23 = confuse(f23);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m23 is F23<int>);
-      Expect.equals(tIsBool, m23 is F23<bool>);
-      Expect.equals(tIsInt, confuse(m23) is F23<int>);
-      Expect.equals(tIsBool, confuse(m23) is F23<bool>);
-    }
-  }
-}
-
-void main() {
-  new U6().runTests();
-  new U6<int>(tIsInt: true).runTests();
-  new U6<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type70_test.dart b/tests/language_2/function_type/function_type70_test.dart
deleted file mode 100644
index b8e748716bb..00000000000
--- a/tests/language_2/function_type/function_type70_test.dart
+++ /dev/null
@@ -1,957 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(int y, [Function x]);
-typedef F1<T> = core.List<core.int> Function(int x0, [int x]);
-typedef F2<T> = List<T> Function(int x0, [List<T> x]);
-typedef F3<T> = void Function([core.List<core.int> x]);
-typedef F4<T> = int Function([int x]) Function<B extends core.int>();
-typedef F5<T> = int Function(List<Function> x1) Function<B extends core.int>();
-typedef F6<T> = int Function(int x, [List<T> x1])
-    Function<B extends core.int>();
-typedef F7<T> = Function Function(int x1, {Function x})
-    Function<B extends core.int>();
-typedef F8<T> = Function Function([List<T> x]) Function<B extends core.int>();
-typedef F9<T> = List<Function> Function(int y, [Function x])
-    Function<B extends core.int>();
-typedef F10<T> = List<Function> Function(int x2, [core.List<core.int> x3])
-    Function<B extends core.int>();
-typedef F11<T> = core.List<core.int> Function({int x})
-    Function<B extends core.int>();
-typedef F12<T> = core.List<core.int> Function(core.List<core.int> x)
-    Function<B extends core.int>();
-typedef F13<T> = List<T> Function(int x1, [int x])
-    Function<B extends core.int>();
-typedef F14<T> = List<T> Function([List<Function> x1])
-    Function<B extends core.int>();
-typedef F15<T> = List<T> Function({List<T> x}) Function<B extends core.int>();
-typedef F16<T> = Function(int y, {Function x}) Function<B extends core.int>();
-typedef F17<T> = Function(int x1, [List<T> x]) Function<B extends core.int>();
-typedef F18<T> = void Function(Function x1) Function<B extends core.int>();
-typedef F19<T> = void Function(int x, [core.List<core.int> x1])
-    Function<B extends core.int>();
-typedef F20<T> = Function Function<A>(Function x)
-    Function<B extends core.int>();
-typedef F21<T> = List<T> Function<A>(List<Function> x)
-    Function<B extends core.int>();
-typedef F22<T> = List<A> Function<A>(core.List<core.int> x)
-    Function<B extends core.int>();
-
-Function f0(int y, [Function x]) => null;
-core.List<core.int> f1(int x0, [int x]) => null;
-List<int> f2(int x0, [List<int> x]) => null;
-void f3([core.List<core.int> x]) => null;
-int Function([int x]) f4<B extends core.int>() => null;
-int Function(List<Function> x0) f5<B extends core.int>() => null;
-int Function(int x, [List<int> x0]) f6<B extends core.int>() => null;
-Function Function(int x0, {Function x}) f7<B extends core.int>() => null;
-Function Function([List<int> x]) f8<B extends core.int>() => null;
-List<Function> Function(int y, [Function x]) f9<B extends core.int>() => null;
-List<Function> Function(int x0, [core.List<core.int> x1])
-    f10<B extends core.int>() => null;
-core.List<core.int> Function({int x}) f11<B extends core.int>() => null;
-core.List<core.int> Function(core.List<core.int> x) f12<B extends core.int>() =>
-    null;
-List<int> Function(int x0, [int x]) f13<B extends core.int>() => null;
-List<int> Function([List<Function> x0]) f14<B extends core.int>() => null;
-List<int> Function({List<int> x}) f15<B extends core.int>() => null;
-Function(int y, {Function x}) f16<B extends core.int>() => null;
-Function(int x0, [List<int> x]) f17<B extends core.int>() => null;
-void Function(Function x0) f18<B extends core.int>() => null;
-void Function(int x, [core.List<core.int> x0]) f19<B extends core.int>() =>
-    null;
-Function Function<A>(Function x) f20<B extends core.int>() => null;
-List<int> Function<A>(List<Function> x) f21<B extends core.int>() => null;
-List<A> Function<A>(core.List<core.int> x) f22<B extends core.int>() => null;
-
-class U70<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(int y, [Function x]) x0;
-  core.List<core.int> Function(int x0, [int x]) x1;
-  List<T> Function(int x0, [List<T> x]) x2;
-  void Function([core.List<core.int> x]) x3;
-  int Function([int x]) Function<B extends core.int>() x4;
-  int Function(List<Function> x1) Function<B extends core.int>() x5;
-  int Function(int x, [List<T> x1]) Function<B extends core.int>() x6;
-  Function Function(int x1, {Function x}) Function<B extends core.int>() x7;
-  Function Function([List<T> x]) Function<B extends core.int>() x8;
-  List<Function> Function(int y, [Function x]) Function<B extends core.int>()
-      x9;
-  List<Function> Function(int x2, [core.List<core.int> x3])
-      Function<B extends core.int>() x10;
-  core.List<core.int> Function({int x}) Function<B extends core.int>() x11;
-  core.List<core.int> Function(core.List<core.int> x)
-      Function<B extends core.int>() x12;
-  List<T> Function(int x1, [int x]) Function<B extends core.int>() x13;
-  List<T> Function([List<Function> x1]) Function<B extends core.int>() x14;
-  List<T> Function({List<T> x}) Function<B extends core.int>() x15;
-  Function(int y, {Function x}) Function<B extends core.int>() x16;
-  Function(int x1, [List<T> x]) Function<B extends core.int>() x17;
-  void Function(Function x1) Function<B extends core.int>() x18;
-  void Function(int x, [core.List<core.int> x1]) Function<B extends core.int>()
-      x19;
-  Function Function<A>(Function x) Function<B extends core.int>() x20;
-  List<T> Function<A>(List<Function> x) Function<B extends core.int>() x21;
-  List<A> Function<A>(core.List<core.int> x) Function<B extends core.int>() x22;
-
-  U70({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(int y, [Function x]) => null;
-  core.List<core.int> m1(int x0, [int x]) => null;
-  List<T> m2(int x0, [List<T> x]) => null;
-  void m3([core.List<core.int> x]) => null;
-  int Function([int x]) m4<B extends core.int>() => null;
-  int Function(List<Function> x0) m5<B extends core.int>() => null;
-  int Function(int x, [List<T> x0]) m6<B extends core.int>() => null;
-  Function Function(int x0, {Function x}) m7<B extends core.int>() => null;
-  Function Function([List<T> x]) m8<B extends core.int>() => null;
-  List<Function> Function(int y, [Function x]) m9<B extends core.int>() => null;
-  List<Function> Function(int x0, [core.List<core.int> x1])
-      m10<B extends core.int>() => null;
-  core.List<core.int> Function({int x}) m11<B extends core.int>() => null;
-  core.List<core.int> Function(core.List<core.int> x)
-      m12<B extends core.int>() => null;
-  List<T> Function(int x0, [int x]) m13<B extends core.int>() => null;
-  List<T> Function([List<Function> x0]) m14<B extends core.int>() => null;
-  List<T> Function({List<T> x}) m15<B extends core.int>() => null;
-  Function(int y, {Function x}) m16<B extends core.int>() => null;
-  Function(int x0, [List<T> x]) m17<B extends core.int>() => null;
-  void Function(Function x0) m18<B extends core.int>() => null;
-  void Function(int x, [core.List<core.int> x0]) m19<B extends core.int>() =>
-      null;
-  Function Function<A>(Function x) m20<B extends core.int>() => null;
-  List<T> Function<A>(List<Function> x) m21<B extends core.int>() => null;
-  List<A> Function<A>(core.List<core.int> x) m22<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(int y, [Function x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, [Function x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(int y, [Function x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function(int x0, [int x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x0, [int x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function(int x0, [int x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(int x0, [List<T> x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x0, [List<T> x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int x0, [List<T> x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function([core.List<core.int> x])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function([core.List<core.int> x]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function([core.List<core.int> x]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// int Function([int x]) Function<B extends core.int>()
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function([int x]) Function<B extends core.int>() l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is int Function([int x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(List<Function> x1) Function<B extends core.int>()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(List<Function> x1) Function<B extends core.int>() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(
-        m5 is int Function(List<Function> x1) Function<B extends core.int>());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x, [List<T> x1]) Function<B extends core.int>()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x, [List<T> x1]) Function<B extends core.int>() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is int Function(int x, [List<T> x1]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(int x1, {Function x}) Function<B extends core.int>()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, {Function x}) Function<B extends core.int>() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x1, {Function x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function([List<T> x]) Function<B extends core.int>()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function([List<T> x]) Function<B extends core.int>() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(
-        m8 is Function Function([List<T> x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(int y, [Function x]) Function<B extends core.int>()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, [Function x]) Function<B extends core.int>()
-        l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int y, [Function x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x2, [core.List<core.int> x3]) Function<B extends core.int>()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x2, [core.List<core.int> x3])
-        Function<B extends core.int>() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x2,
-            [core.List<core.int> x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function({int x}) Function<B extends core.int>()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function({int x}) Function<B extends core.int>() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function({int x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(core.List<core.int> x) Function<B extends core.int>()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(core.List<core.int> x)
-        Function<B extends core.int>() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(core.List<core.int> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int x1, [int x]) Function<B extends core.int>()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, [int x]) Function<B extends core.int>() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function(int x1, [int x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function([List<Function> x1]) Function<B extends core.int>()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([List<Function> x1]) Function<B extends core.int>() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function([List<Function> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function({List<T> x}) Function<B extends core.int>()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function({List<T> x}) Function<B extends core.int>() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(
-        m15 is List<T> Function({List<T> x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int y, {Function x}) Function<B extends core.int>()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int y, {Function x}) Function<B extends core.int>() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function(int y, {Function x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x1, [List<T> x]) Function<B extends core.int>()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, [List<T> x]) Function<B extends core.int>() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(
-        m17 is Function(int x1, [List<T> x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(Function x1) Function<B extends core.int>()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(Function x1) Function<B extends core.int>() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(
-        m18 is void Function(Function x1) Function<B extends core.int>());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x, [core.List<core.int> x1]) Function<B extends core.int>()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x, [core.List<core.int> x1])
-        Function<B extends core.int>() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int x, [core.List<core.int> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// Function Function<A>(Function x) Function<B extends core.int>()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(Function x) Function<B extends core.int>() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(
-        m20 is Function Function<A>(Function x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(List<Function> x) Function<B extends core.int>()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(List<Function> x) Function<B extends core.int>() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<T> Function<A>(List<Function> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>(core.List<core.int> x) Function<B extends core.int>()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(core.List<core.int> x) Function<B extends core.int>()
-        l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is List<A> Function<A>(core.List<core.int> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U70().runTests();
-  new U70<int>(tIsInt: true).runTests();
-  new U70<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type71_test.dart b/tests/language_2/function_type/function_type71_test.dart
deleted file mode 100644
index 1198b38e4be..00000000000
--- a/tests/language_2/function_type/function_type71_test.dart
+++ /dev/null
@@ -1,976 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(Function x0);
-typedef F1<T> = core.List<core.int> Function(int y, [int x]);
-typedef F2<T> = List<T> Function(int y, [List<T> x]);
-typedef F3<T> = void Function(int x0, [core.List<core.int> x]);
-typedef F4<T> = int Function([int x]) Function<B extends core.int>(int x);
-typedef F5<T> = int Function(List<Function> x1) Function<B extends core.int>(
-    int x);
-typedef F6<T> = int Function(int x, [List<T> x1]) Function<B extends core.int>(
-    int x);
-typedef F7<T> = Function Function(int x1, {Function x})
-    Function<B extends core.int>(int x);
-typedef F8<T> = Function Function([List<T> x]) Function<B extends core.int>(
-    int x);
-typedef F9<T> = List<Function> Function(int y, [Function x])
-    Function<B extends core.int>(int x);
-typedef F10<T> = List<Function> Function(int x2, [core.List<core.int> x3])
-    Function<B extends core.int>(int x);
-typedef F11<T> = core.List<core.int> Function({int x})
-    Function<B extends core.int>(int x);
-typedef F12<T> = core.List<core.int> Function(core.List<core.int> x)
-    Function<B extends core.int>(int x);
-typedef F13<T> = List<T> Function(int x1, [int x]) Function<B extends core.int>(
-    int x);
-typedef F14<T> = List<T> Function([List<Function> x1])
-    Function<B extends core.int>(int x);
-typedef F15<T> = List<T> Function({List<T> x}) Function<B extends core.int>(
-    int x);
-typedef F16<T> = Function(int y, {Function x}) Function<B extends core.int>(
-    int x);
-typedef F17<T> = Function(int x1, [List<T> x]) Function<B extends core.int>(
-    int x);
-typedef F18<T> = void Function(Function x1) Function<B extends core.int>(int x);
-typedef F19<T> = void Function(int x, [core.List<core.int> x1])
-    Function<B extends core.int>(int x);
-typedef F20<T> = Function Function<A>(Function x) Function<B extends core.int>(
-    int x);
-typedef F21<T> = List<T> Function<A>(List<Function> x)
-    Function<B extends core.int>(int x);
-typedef F22<T> = List<A> Function<A>(core.List<core.int> x)
-    Function<B extends core.int>(int x);
-
-Function f0(Function x0) => null;
-core.List<core.int> f1(int y, [int x]) => null;
-List<int> f2(int y, [List<int> x]) => null;
-void f3(int x0, [core.List<core.int> x]) => null;
-int Function([int x]) f4<B extends core.int>(int x) => null;
-int Function(List<Function> x0) f5<B extends core.int>(int x) => null;
-int Function(int x, [List<int> x0]) f6<B extends core.int>(int x) => null;
-Function Function(int x0, {Function x}) f7<B extends core.int>(int x) => null;
-Function Function([List<int> x]) f8<B extends core.int>(int x) => null;
-List<Function> Function(int y, [Function x]) f9<B extends core.int>(int x) =>
-    null;
-List<Function> Function(int x0, [core.List<core.int> x1])
-    f10<B extends core.int>(int x) => null;
-core.List<core.int> Function({int x}) f11<B extends core.int>(int x) => null;
-core.List<core.int> Function(core.List<core.int> x) f12<B extends core.int>(
-        int x) =>
-    null;
-List<int> Function(int x0, [int x]) f13<B extends core.int>(int x) => null;
-List<int> Function([List<Function> x0]) f14<B extends core.int>(int x) => null;
-List<int> Function({List<int> x}) f15<B extends core.int>(int x) => null;
-Function(int y, {Function x}) f16<B extends core.int>(int x) => null;
-Function(int x0, [List<int> x]) f17<B extends core.int>(int x) => null;
-void Function(Function x0) f18<B extends core.int>(int x) => null;
-void Function(int x, [core.List<core.int> x0]) f19<B extends core.int>(int x) =>
-    null;
-Function Function<A>(Function x) f20<B extends core.int>(int x) => null;
-List<int> Function<A>(List<Function> x) f21<B extends core.int>(int x) => null;
-List<A> Function<A>(core.List<core.int> x) f22<B extends core.int>(int x) =>
-    null;
-
-class U71<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(Function x0) x0;
-  core.List<core.int> Function(int y, [int x]) x1;
-  List<T> Function(int y, [List<T> x]) x2;
-  void Function(int x0, [core.List<core.int> x]) x3;
-  int Function([int x]) Function<B extends core.int>(int x) x4;
-  int Function(List<Function> x1) Function<B extends core.int>(int x) x5;
-  int Function(int x, [List<T> x1]) Function<B extends core.int>(int x) x6;
-  Function Function(int x1, {Function x}) Function<B extends core.int>(int x)
-      x7;
-  Function Function([List<T> x]) Function<B extends core.int>(int x) x8;
-  List<Function> Function(int y, [Function x]) Function<B extends core.int>(
-      int x) x9;
-  List<Function> Function(int x2, [core.List<core.int> x3])
-      Function<B extends core.int>(int x) x10;
-  core.List<core.int> Function({int x}) Function<B extends core.int>(int x) x11;
-  core.List<core.int> Function(core.List<core.int> x)
-      Function<B extends core.int>(int x) x12;
-  List<T> Function(int x1, [int x]) Function<B extends core.int>(int x) x13;
-  List<T> Function([List<Function> x1]) Function<B extends core.int>(int x) x14;
-  List<T> Function({List<T> x}) Function<B extends core.int>(int x) x15;
-  Function(int y, {Function x}) Function<B extends core.int>(int x) x16;
-  Function(int x1, [List<T> x]) Function<B extends core.int>(int x) x17;
-  void Function(Function x1) Function<B extends core.int>(int x) x18;
-  void Function(int x, [core.List<core.int> x1]) Function<B extends core.int>(
-      int x) x19;
-  Function Function<A>(Function x) Function<B extends core.int>(int x) x20;
-  List<T> Function<A>(List<Function> x) Function<B extends core.int>(int x) x21;
-  List<A> Function<A>(core.List<core.int> x) Function<B extends core.int>(int x)
-      x22;
-
-  U71({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(Function x0) => null;
-  core.List<core.int> m1(int y, [int x]) => null;
-  List<T> m2(int y, [List<T> x]) => null;
-  void m3(int x0, [core.List<core.int> x]) => null;
-  int Function([int x]) m4<B extends core.int>(int x) => null;
-  int Function(List<Function> x0) m5<B extends core.int>(int x) => null;
-  int Function(int x, [List<T> x0]) m6<B extends core.int>(int x) => null;
-  Function Function(int x0, {Function x}) m7<B extends core.int>(int x) => null;
-  Function Function([List<T> x]) m8<B extends core.int>(int x) => null;
-  List<Function> Function(int y, [Function x]) m9<B extends core.int>(int x) =>
-      null;
-  List<Function> Function(int x0, [core.List<core.int> x1])
-      m10<B extends core.int>(int x) => null;
-  core.List<core.int> Function({int x}) m11<B extends core.int>(int x) => null;
-  core.List<core.int> Function(core.List<core.int> x) m12<B extends core.int>(
-          int x) =>
-      null;
-  List<T> Function(int x0, [int x]) m13<B extends core.int>(int x) => null;
-  List<T> Function([List<Function> x0]) m14<B extends core.int>(int x) => null;
-  List<T> Function({List<T> x}) m15<B extends core.int>(int x) => null;
-  Function(int y, {Function x}) m16<B extends core.int>(int x) => null;
-  Function(int x0, [List<T> x]) m17<B extends core.int>(int x) => null;
-  void Function(Function x0) m18<B extends core.int>(int x) => null;
-  void Function(int x, [core.List<core.int> x0]) m19<B extends core.int>(
-          int x) =>
-      null;
-  Function Function<A>(Function x) m20<B extends core.int>(int x) => null;
-  List<T> Function<A>(List<Function> x) m21<B extends core.int>(int x) => null;
-  List<A> Function<A>(core.List<core.int> x) m22<B extends core.int>(int x) =>
-      null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(Function x0)
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(Function x0) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(Function x0));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function(int y, [int x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, [int x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function(int y, [int x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(int y, [List<T> x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, [List<T> x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int y, [List<T> x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(int x0, [core.List<core.int> x])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int x0, [core.List<core.int> x]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int x0, [core.List<core.int> x]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// int Function([int x]) Function<B extends core.int>(int x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function([int x]) Function<B extends core.int>(int x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(
-        m4 is int Function([int x]) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(List<Function> x1) Function<B extends core.int>(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(List<Function> x1) Function<B extends core.int>(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(List<Function> x1)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x, [List<T> x1]) Function<B extends core.int>(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x, [List<T> x1]) Function<B extends core.int>(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int x, [List<T> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(int x1, {Function x}) Function<B extends core.int>(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, {Function x}) Function<B extends core.int>(int x)
-        l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x1, {Function x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function([List<T> x]) Function<B extends core.int>(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function([List<T> x]) Function<B extends core.int>(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function([List<T> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(int y, [Function x]) Function<B extends core.int>(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, [Function x]) Function<B extends core.int>(
-        int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int y, [Function x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x2, [core.List<core.int> x3]) Function<B extends core.int>(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x2, [core.List<core.int> x3])
-        Function<B extends core.int>(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x2,
-            [core.List<core.int> x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function({int x}) Function<B extends core.int>(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function({int x}) Function<B extends core.int>(int x)
-        l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function({int x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(core.List<core.int> x) Function<B extends core.int>(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(core.List<core.int> x)
-        Function<B extends core.int>(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(core.List<core.int> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int x1, [int x]) Function<B extends core.int>(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, [int x]) Function<B extends core.int>(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function(int x1, [int x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function([List<Function> x1]) Function<B extends core.int>(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([List<Function> x1]) Function<B extends core.int>(int x)
-        l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function([List<Function> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function({List<T> x}) Function<B extends core.int>(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function({List<T> x}) Function<B extends core.int>(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function({List<T> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int y, {Function x}) Function<B extends core.int>(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int y, {Function x}) Function<B extends core.int>(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int y, {Function x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x1, [List<T> x]) Function<B extends core.int>(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, [List<T> x]) Function<B extends core.int>(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x1, [List<T> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(Function x1) Function<B extends core.int>(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(Function x1) Function<B extends core.int>(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(
-        m18 is void Function(Function x1) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x, [core.List<core.int> x1]) Function<B extends core.int>(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x, [core.List<core.int> x1]) Function<B extends core.int>(
-        int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int x, [core.List<core.int> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// Function Function<A>(Function x) Function<B extends core.int>(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(Function x) Function<B extends core.int>(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is Function Function<A>(Function x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(List<Function> x) Function<B extends core.int>(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(List<Function> x) Function<B extends core.int>(int x)
-        l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<T> Function<A>(List<Function> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>(core.List<core.int> x) Function<B extends core.int>(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(core.List<core.int> x) Function<B extends core.int>(
-        int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is List<A> Function<A>(core.List<core.int> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U71().runTests();
-  new U71<int>(tIsInt: true).runTests();
-  new U71<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type72_test.dart b/tests/language_2/function_type/function_type72_test.dart
deleted file mode 100644
index 8afc187081b..00000000000
--- a/tests/language_2/function_type/function_type72_test.dart
+++ /dev/null
@@ -1,942 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function([Function x1]);
-typedef F1<T> = core.List<core.int> Function(int x0);
-typedef F2<T> = List<T> Function(List<T> x0);
-typedef F3<T> = void Function(int y, [core.List<core.int> x]);
-typedef F4<T> = int Function(int x0, [int x]) Function();
-typedef F5<T> = int Function([List<Function> x1]) Function();
-typedef F6<T> = int Function({List<T> x}) Function();
-typedef F7<T> = Function Function(int y, {Function x}) Function();
-typedef F8<T> = Function Function(int x0, [List<T> x]) Function();
-typedef F9<T> = List<Function> Function(Function x0) Function();
-typedef F10<T> = List<Function> Function(int x, [core.List<core.int> x2])
-    Function();
-typedef F11<T> = core.List<core.int> Function(int x0, {int x}) Function();
-typedef F12<T> = core.List<core.int> Function([core.List<core.int> x])
-    Function();
-typedef F13<T> = List<T> Function(int y, [int x]) Function();
-typedef F14<T> = List<T> Function(int x1, [List<Function> x2]) Function();
-typedef F15<T> = List<T> Function(int x0, {List<T> x}) Function();
-typedef F16<T> = Function(List<Function> x) Function();
-typedef F17<T> = Function(int y, [List<T> x]) Function();
-typedef F18<T> = void Function([Function x1]) Function();
-typedef F19<T> = void Function({core.List<core.int> x}) Function();
-typedef F20<T> = Function Function<A>(List<Function> x) Function();
-typedef F21<T> = List<T> Function<A>(core.List<core.int> x) Function();
-typedef F22<T> = List<A> Function<A>(List<T> x) Function();
-
-Function f0([Function x0]) => null;
-core.List<core.int> f1(int x0) => null;
-List<int> f2(List<int> x0) => null;
-void f3(int y, [core.List<core.int> x]) => null;
-int Function(int x0, [int x]) f4() => null;
-int Function([List<Function> x0]) f5() => null;
-int Function({List<int> x}) f6() => null;
-Function Function(int y, {Function x}) f7() => null;
-Function Function(int x0, [List<int> x]) f8() => null;
-List<Function> Function(Function x0) f9() => null;
-List<Function> Function(int x, [core.List<core.int> x0]) f10() => null;
-core.List<core.int> Function(int x0, {int x}) f11() => null;
-core.List<core.int> Function([core.List<core.int> x]) f12() => null;
-List<int> Function(int y, [int x]) f13() => null;
-List<int> Function(int x0, [List<Function> x1]) f14() => null;
-List<int> Function(int x0, {List<int> x}) f15() => null;
-Function(List<Function> x) f16() => null;
-Function(int y, [List<int> x]) f17() => null;
-void Function([Function x0]) f18() => null;
-void Function({core.List<core.int> x}) f19() => null;
-Function Function<A>(List<Function> x) f20() => null;
-List<int> Function<A>(core.List<core.int> x) f21() => null;
-List<A> Function<A>(List<int> x) f22() => null;
-
-class U72<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function([Function x1]) x0;
-  core.List<core.int> Function(int x0) x1;
-  List<T> Function(List<T> x0) x2;
-  void Function(int y, [core.List<core.int> x]) x3;
-  int Function(int x0, [int x]) Function() x4;
-  int Function([List<Function> x1]) Function() x5;
-  int Function({List<T> x}) Function() x6;
-  Function Function(int y, {Function x}) Function() x7;
-  Function Function(int x0, [List<T> x]) Function() x8;
-  List<Function> Function(Function x0) Function() x9;
-  List<Function> Function(int x, [core.List<core.int> x2]) Function() x10;
-  core.List<core.int> Function(int x0, {int x}) Function() x11;
-  core.List<core.int> Function([core.List<core.int> x]) Function() x12;
-  List<T> Function(int y, [int x]) Function() x13;
-  List<T> Function(int x1, [List<Function> x2]) Function() x14;
-  List<T> Function(int x0, {List<T> x}) Function() x15;
-  Function(List<Function> x) Function() x16;
-  Function(int y, [List<T> x]) Function() x17;
-  void Function([Function x1]) Function() x18;
-  void Function({core.List<core.int> x}) Function() x19;
-  Function Function<A>(List<Function> x) Function() x20;
-  List<T> Function<A>(core.List<core.int> x) Function() x21;
-  List<A> Function<A>(List<T> x) Function() x22;
-
-  U72({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0([Function x0]) => null;
-  core.List<core.int> m1(int x0) => null;
-  List<T> m2(List<T> x0) => null;
-  void m3(int y, [core.List<core.int> x]) => null;
-  int Function(int x0, [int x]) m4() => null;
-  int Function([List<Function> x0]) m5() => null;
-  int Function({List<T> x}) m6() => null;
-  Function Function(int y, {Function x}) m7() => null;
-  Function Function(int x0, [List<T> x]) m8() => null;
-  List<Function> Function(Function x0) m9() => null;
-  List<Function> Function(int x, [core.List<core.int> x0]) m10() => null;
-  core.List<core.int> Function(int x0, {int x}) m11() => null;
-  core.List<core.int> Function([core.List<core.int> x]) m12() => null;
-  List<T> Function(int y, [int x]) m13() => null;
-  List<T> Function(int x0, [List<Function> x1]) m14() => null;
-  List<T> Function(int x0, {List<T> x}) m15() => null;
-  Function(List<Function> x) m16() => null;
-  Function(int y, [List<T> x]) m17() => null;
-  void Function([Function x0]) m18() => null;
-  void Function({core.List<core.int> x}) m19() => null;
-  Function Function<A>(List<Function> x) m20() => null;
-  List<T> Function<A>(core.List<core.int> x) m21() => null;
-  List<A> Function<A>(List<T> x) m22() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function([Function x1])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function([Function x1]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function([Function x1]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function(int x0)
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x0) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function(int x0));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(List<T> x0)
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(List<T> x0) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(List<T> x0));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(int y, [core.List<core.int> x])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, [core.List<core.int> x]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int y, [core.List<core.int> x]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// int Function(int x0, [int x]) Function()
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function(int x0, [int x]) Function() l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is int Function(int x0, [int x]) Function());
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function([List<Function> x1]) Function()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function([List<Function> x1]) Function() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function([List<Function> x1]) Function());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function({List<T> x}) Function()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function({List<T> x}) Function() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function({List<T> x}) Function());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(int y, {Function x}) Function()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, {Function x}) Function() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int y, {Function x}) Function());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x0, [List<T> x]) Function()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x0, [List<T> x]) Function() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x0, [List<T> x]) Function());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(Function x0) Function()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(Function x0) Function() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(Function x0) Function());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x, [core.List<core.int> x2]) Function()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x, [core.List<core.int> x2]) Function() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10
-        is List<Function> Function(int x, [core.List<core.int> x2]) Function());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int x0, {int x}) Function()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x0, {int x}) Function() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is core.List<core.int> Function(int x0, {int x}) Function());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function([core.List<core.int> x]) Function()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([core.List<core.int> x]) Function() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function([core.List<core.int> x])
-        Function());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int y, [int x]) Function()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, [int x]) Function() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function(int y, [int x]) Function());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x1, [List<Function> x2]) Function()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, [List<Function> x2]) Function() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(
-        m14 is List<T> Function(int x1, [List<Function> x2]) Function());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x0, {List<T> x}) Function()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x0, {List<T> x}) Function() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x0, {List<T> x}) Function());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(List<Function> x) Function()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(List<Function> x) Function() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(List<Function> x) Function());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int y, [List<T> x]) Function()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int y, [List<T> x]) Function() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int y, [List<T> x]) Function());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function([Function x1]) Function()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function([Function x1]) Function() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function([Function x1]) Function());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function({core.List<core.int> x}) Function()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function({core.List<core.int> x}) Function() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function({core.List<core.int> x}) Function());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// Function Function<A>(List<Function> x) Function()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(List<Function> x) Function() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is Function Function<A>(List<Function> x) Function());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(core.List<core.int> x) Function()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(core.List<core.int> x) Function() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<T> Function<A>(core.List<core.int> x) Function());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>(List<T> x) Function()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(List<T> x) Function() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is List<A> Function<A>(List<T> x) Function());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-    // The static function has its T always set to int.
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isFalse(f22 is F22<bool>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    Expect.isFalse(confuse(f22) is F22<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x22 = (f22 as dynamic);
-      });
-      Expect.throws(() {
-        x22 = confuse(f22);
-      });
-      Expect.throws(() {
-        l22 = (f22 as dynamic);
-      });
-      Expect.throws(() {
-        l22 = confuse(f22);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m22 is F22<int>);
-      Expect.equals(tIsBool, m22 is F22<bool>);
-      Expect.equals(tIsInt, confuse(m22) is F22<int>);
-      Expect.equals(tIsBool, confuse(m22) is F22<bool>);
-    }
-  }
-}
-
-void main() {
-  new U72().runTests();
-  new U72<int>(tIsInt: true).runTests();
-  new U72<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type73_test.dart b/tests/language_2/function_type/function_type73_test.dart
deleted file mode 100644
index f89804e8522..00000000000
--- a/tests/language_2/function_type/function_type73_test.dart
+++ /dev/null
@@ -1,947 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(int x1, [Function x2]);
-typedef F1<T> = core.List<core.int> Function([int x1]);
-typedef F2<T> = List<T> Function([List<T> x1]);
-typedef F3<T> = void Function(core.List<core.int> x0);
-typedef F4<T> = int Function(int x1, [int x]) Function(int x);
-typedef F5<T> = int Function([List<Function> x1]) Function(int x);
-typedef F6<T> = int Function({List<T> x}) Function(int x);
-typedef F7<T> = Function Function(int y, {Function x}) Function(int x);
-typedef F8<T> = Function Function(int x1, [List<T> x]) Function(int x);
-typedef F9<T> = List<Function> Function(Function x1) Function(int x);
-typedef F10<T> = List<Function> Function(int x, [core.List<core.int> x1])
-    Function(int x);
-typedef F11<T> = core.List<core.int> Function(int x1, {int x}) Function(int x);
-typedef F12<T> = core.List<core.int> Function([core.List<core.int> x]) Function(
-    int x);
-typedef F13<T> = List<T> Function(int y, [int x]) Function(int x);
-typedef F14<T> = List<T> Function(int x2, [List<Function> x3]) Function(int x);
-typedef F15<T> = List<T> Function(int x1, {List<T> x}) Function(int x);
-typedef F16<T> = Function(List<Function> x) Function(int x);
-typedef F17<T> = Function(int y, [List<T> x]) Function(int x);
-typedef F18<T> = void Function([Function x1]) Function(int x);
-typedef F19<T> = void Function({core.List<core.int> x}) Function(int x);
-typedef F20<T> = Function Function<A>(List<Function> x) Function(int x);
-typedef F21<T> = List<T> Function<A>(core.List<core.int> x) Function(int x);
-typedef F22<T> = List<A> Function<A>(List<T> x) Function(int x);
-
-Function f0(int x0, [Function x1]) => null;
-core.List<core.int> f1([int x0]) => null;
-List<int> f2([List<int> x0]) => null;
-void f3(core.List<core.int> x0) => null;
-int Function(int x0, [int x]) f4(int x) => null;
-int Function([List<Function> x0]) f5(int x) => null;
-int Function({List<int> x}) f6(int x) => null;
-Function Function(int y, {Function x}) f7(int x) => null;
-Function Function(int x0, [List<int> x]) f8(int x) => null;
-List<Function> Function(Function x0) f9(int x) => null;
-List<Function> Function(int x, [core.List<core.int> x0]) f10(int x) => null;
-core.List<core.int> Function(int x0, {int x}) f11(int x) => null;
-core.List<core.int> Function([core.List<core.int> x]) f12(int x) => null;
-List<int> Function(int y, [int x]) f13(int x) => null;
-List<int> Function(int x0, [List<Function> x1]) f14(int x) => null;
-List<int> Function(int x0, {List<int> x}) f15(int x) => null;
-Function(List<Function> x) f16(int x) => null;
-Function(int y, [List<int> x]) f17(int x) => null;
-void Function([Function x0]) f18(int x) => null;
-void Function({core.List<core.int> x}) f19(int x) => null;
-Function Function<A>(List<Function> x) f20(int x) => null;
-List<int> Function<A>(core.List<core.int> x) f21(int x) => null;
-List<A> Function<A>(List<int> x) f22(int x) => null;
-
-class U73<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(int x1, [Function x2]) x0;
-  core.List<core.int> Function([int x1]) x1;
-  List<T> Function([List<T> x1]) x2;
-  void Function(core.List<core.int> x0) x3;
-  int Function(int x1, [int x]) Function(int x) x4;
-  int Function([List<Function> x1]) Function(int x) x5;
-  int Function({List<T> x}) Function(int x) x6;
-  Function Function(int y, {Function x}) Function(int x) x7;
-  Function Function(int x1, [List<T> x]) Function(int x) x8;
-  List<Function> Function(Function x1) Function(int x) x9;
-  List<Function> Function(int x, [core.List<core.int> x1]) Function(int x) x10;
-  core.List<core.int> Function(int x1, {int x}) Function(int x) x11;
-  core.List<core.int> Function([core.List<core.int> x]) Function(int x) x12;
-  List<T> Function(int y, [int x]) Function(int x) x13;
-  List<T> Function(int x2, [List<Function> x3]) Function(int x) x14;
-  List<T> Function(int x1, {List<T> x}) Function(int x) x15;
-  Function(List<Function> x) Function(int x) x16;
-  Function(int y, [List<T> x]) Function(int x) x17;
-  void Function([Function x1]) Function(int x) x18;
-  void Function({core.List<core.int> x}) Function(int x) x19;
-  Function Function<A>(List<Function> x) Function(int x) x20;
-  List<T> Function<A>(core.List<core.int> x) Function(int x) x21;
-  List<A> Function<A>(List<T> x) Function(int x) x22;
-
-  U73({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(int x0, [Function x1]) => null;
-  core.List<core.int> m1([int x0]) => null;
-  List<T> m2([List<T> x0]) => null;
-  void m3(core.List<core.int> x0) => null;
-  int Function(int x0, [int x]) m4(int x) => null;
-  int Function([List<Function> x0]) m5(int x) => null;
-  int Function({List<T> x}) m6(int x) => null;
-  Function Function(int y, {Function x}) m7(int x) => null;
-  Function Function(int x0, [List<T> x]) m8(int x) => null;
-  List<Function> Function(Function x0) m9(int x) => null;
-  List<Function> Function(int x, [core.List<core.int> x0]) m10(int x) => null;
-  core.List<core.int> Function(int x0, {int x}) m11(int x) => null;
-  core.List<core.int> Function([core.List<core.int> x]) m12(int x) => null;
-  List<T> Function(int y, [int x]) m13(int x) => null;
-  List<T> Function(int x0, [List<Function> x1]) m14(int x) => null;
-  List<T> Function(int x0, {List<T> x}) m15(int x) => null;
-  Function(List<Function> x) m16(int x) => null;
-  Function(int y, [List<T> x]) m17(int x) => null;
-  void Function([Function x0]) m18(int x) => null;
-  void Function({core.List<core.int> x}) m19(int x) => null;
-  Function Function<A>(List<Function> x) m20(int x) => null;
-  List<T> Function<A>(core.List<core.int> x) m21(int x) => null;
-  List<A> Function<A>(List<T> x) m22(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(int x1, [Function x2])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, [Function x2]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(int x1, [Function x2]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function([int x1])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([int x1]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function([int x1]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function([List<T> x1])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([List<T> x1]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function([List<T> x1]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(core.List<core.int> x0)
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(core.List<core.int> x0) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(core.List<core.int> x0));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// int Function(int x1, [int x]) Function(int x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, [int x]) Function(int x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is int Function(int x1, [int x]) Function(int x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function([List<Function> x1]) Function(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function([List<Function> x1]) Function(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function([List<Function> x1]) Function(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function({List<T> x}) Function(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function({List<T> x}) Function(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function({List<T> x}) Function(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(int y, {Function x}) Function(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, {Function x}) Function(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int y, {Function x}) Function(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x1, [List<T> x]) Function(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, [List<T> x]) Function(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x1, [List<T> x]) Function(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(Function x1) Function(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(Function x1) Function(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(Function x1) Function(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x, [core.List<core.int> x1]) Function(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x, [core.List<core.int> x1]) Function(int x)
-        l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x,
-            [core.List<core.int> x1])
-        Function(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int x1, {int x}) Function(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, {int x}) Function(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is core.List<core.int> Function(int x1, {int x}) Function(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function([core.List<core.int> x]) Function(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([core.List<core.int> x]) Function(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function([core.List<core.int> x])
-        Function(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int y, [int x]) Function(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, [int x]) Function(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function(int y, [int x]) Function(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x2, [List<Function> x3]) Function(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x2, [List<Function> x3]) Function(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(
-        m14 is List<T> Function(int x2, [List<Function> x3]) Function(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x1, {List<T> x}) Function(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, {List<T> x}) Function(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x1, {List<T> x}) Function(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(List<Function> x) Function(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(List<Function> x) Function(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(List<Function> x) Function(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int y, [List<T> x]) Function(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int y, [List<T> x]) Function(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int y, [List<T> x]) Function(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function([Function x1]) Function(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function([Function x1]) Function(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function([Function x1]) Function(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function({core.List<core.int> x}) Function(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function({core.List<core.int> x}) Function(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(
-        m19 is void Function({core.List<core.int> x}) Function(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// Function Function<A>(List<Function> x) Function(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(List<Function> x) Function(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(
-        m20 is Function Function<A>(List<Function> x) Function(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(core.List<core.int> x) Function(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(core.List<core.int> x) Function(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(
-        m21 is List<T> Function<A>(core.List<core.int> x) Function(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>(List<T> x) Function(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(List<T> x) Function(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is List<A> Function<A>(List<T> x) Function(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-    // The static function has its T always set to int.
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isFalse(f22 is F22<bool>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    Expect.isFalse(confuse(f22) is F22<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x22 = (f22 as dynamic);
-      });
-      Expect.throws(() {
-        x22 = confuse(f22);
-      });
-      Expect.throws(() {
-        l22 = (f22 as dynamic);
-      });
-      Expect.throws(() {
-        l22 = confuse(f22);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m22 is F22<int>);
-      Expect.equals(tIsBool, m22 is F22<bool>);
-      Expect.equals(tIsInt, confuse(m22) is F22<int>);
-      Expect.equals(tIsBool, confuse(m22) is F22<bool>);
-    }
-  }
-}
-
-void main() {
-  new U73().runTests();
-  new U73<int>(tIsInt: true).runTests();
-  new U73<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type74_test.dart b/tests/language_2/function_type/function_type74_test.dart
deleted file mode 100644
index f5fe9193976..00000000000
--- a/tests/language_2/function_type/function_type74_test.dart
+++ /dev/null
@@ -1,985 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(int x, [Function x2]);
-typedef F1<T> = core.List<core.int> Function(int x1, [int x2]);
-typedef F2<T> = List<T> Function(int x1, [List<T> x2]);
-typedef F3<T> = void Function([core.List<core.int> x1]);
-typedef F4<T> = int Function(int x1, [int x]) Function<B extends core.int>();
-typedef F5<T> = int Function([List<Function> x1])
-    Function<B extends core.int>();
-typedef F6<T> = int Function({List<T> x}) Function<B extends core.int>();
-typedef F7<T> = Function Function(int y, {Function x})
-    Function<B extends core.int>();
-typedef F8<T> = Function Function(int x1, [List<T> x])
-    Function<B extends core.int>();
-typedef F9<T> = List<Function> Function(Function x1)
-    Function<B extends core.int>();
-typedef F10<T> = List<Function> Function(int x, [core.List<core.int> x1])
-    Function<B extends core.int>();
-typedef F11<T> = core.List<core.int> Function(int x1, {int x})
-    Function<B extends core.int>();
-typedef F12<T> = core.List<core.int> Function([core.List<core.int> x])
-    Function<B extends core.int>();
-typedef F13<T> = List<T> Function(int y, [int x])
-    Function<B extends core.int>();
-typedef F14<T> = List<T> Function(int x2, [List<Function> x3])
-    Function<B extends core.int>();
-typedef F15<T> = List<T> Function(int x1, {List<T> x})
-    Function<B extends core.int>();
-typedef F16<T> = Function(List<Function> x) Function<B extends core.int>();
-typedef F17<T> = Function(int y, [List<T> x]) Function<B extends core.int>();
-typedef F18<T> = void Function([Function x1]) Function<B extends core.int>();
-typedef F19<T> = void Function({core.List<core.int> x})
-    Function<B extends core.int>();
-typedef F20<T> = Function Function<A>(List<Function> x)
-    Function<B extends core.int>();
-typedef F21<T> = List<T> Function<A>(core.List<core.int> x)
-    Function<B extends core.int>();
-typedef F22<T> = List<A> Function<A>(List<T> x) Function<B extends core.int>();
-
-Function f0(int x, [Function x0]) => null;
-core.List<core.int> f1(int x0, [int x1]) => null;
-List<int> f2(int x0, [List<int> x1]) => null;
-void f3([core.List<core.int> x0]) => null;
-int Function(int x0, [int x]) f4<B extends core.int>() => null;
-int Function([List<Function> x0]) f5<B extends core.int>() => null;
-int Function({List<int> x}) f6<B extends core.int>() => null;
-Function Function(int y, {Function x}) f7<B extends core.int>() => null;
-Function Function(int x0, [List<int> x]) f8<B extends core.int>() => null;
-List<Function> Function(Function x0) f9<B extends core.int>() => null;
-List<Function> Function(int x, [core.List<core.int> x0])
-    f10<B extends core.int>() => null;
-core.List<core.int> Function(int x0, {int x}) f11<B extends core.int>() => null;
-core.List<core.int> Function([core.List<core.int> x])
-    f12<B extends core.int>() => null;
-List<int> Function(int y, [int x]) f13<B extends core.int>() => null;
-List<int> Function(int x0, [List<Function> x1]) f14<B extends core.int>() =>
-    null;
-List<int> Function(int x0, {List<int> x}) f15<B extends core.int>() => null;
-Function(List<Function> x) f16<B extends core.int>() => null;
-Function(int y, [List<int> x]) f17<B extends core.int>() => null;
-void Function([Function x0]) f18<B extends core.int>() => null;
-void Function({core.List<core.int> x}) f19<B extends core.int>() => null;
-Function Function<A>(List<Function> x) f20<B extends core.int>() => null;
-List<int> Function<A>(core.List<core.int> x) f21<B extends core.int>() => null;
-List<A> Function<A>(List<int> x) f22<B extends core.int>() => null;
-
-class U74<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(int x, [Function x2]) x0;
-  core.List<core.int> Function(int x1, [int x2]) x1;
-  List<T> Function(int x1, [List<T> x2]) x2;
-  void Function([core.List<core.int> x1]) x3;
-  int Function(int x1, [int x]) Function<B extends core.int>() x4;
-  int Function([List<Function> x1]) Function<B extends core.int>() x5;
-  int Function({List<T> x}) Function<B extends core.int>() x6;
-  Function Function(int y, {Function x}) Function<B extends core.int>() x7;
-  Function Function(int x1, [List<T> x]) Function<B extends core.int>() x8;
-  List<Function> Function(Function x1) Function<B extends core.int>() x9;
-  List<Function> Function(int x, [core.List<core.int> x1])
-      Function<B extends core.int>() x10;
-  core.List<core.int> Function(int x1, {int x}) Function<B extends core.int>()
-      x11;
-  core.List<core.int> Function([core.List<core.int> x])
-      Function<B extends core.int>() x12;
-  List<T> Function(int y, [int x]) Function<B extends core.int>() x13;
-  List<T> Function(int x2, [List<Function> x3]) Function<B extends core.int>()
-      x14;
-  List<T> Function(int x1, {List<T> x}) Function<B extends core.int>() x15;
-  Function(List<Function> x) Function<B extends core.int>() x16;
-  Function(int y, [List<T> x]) Function<B extends core.int>() x17;
-  void Function([Function x1]) Function<B extends core.int>() x18;
-  void Function({core.List<core.int> x}) Function<B extends core.int>() x19;
-  Function Function<A>(List<Function> x) Function<B extends core.int>() x20;
-  List<T> Function<A>(core.List<core.int> x) Function<B extends core.int>() x21;
-  List<A> Function<A>(List<T> x) Function<B extends core.int>() x22;
-
-  U74({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(int x, [Function x0]) => null;
-  core.List<core.int> m1(int x0, [int x1]) => null;
-  List<T> m2(int x0, [List<T> x1]) => null;
-  void m3([core.List<core.int> x0]) => null;
-  int Function(int x0, [int x]) m4<B extends core.int>() => null;
-  int Function([List<Function> x0]) m5<B extends core.int>() => null;
-  int Function({List<T> x}) m6<B extends core.int>() => null;
-  Function Function(int y, {Function x}) m7<B extends core.int>() => null;
-  Function Function(int x0, [List<T> x]) m8<B extends core.int>() => null;
-  List<Function> Function(Function x0) m9<B extends core.int>() => null;
-  List<Function> Function(int x, [core.List<core.int> x0])
-      m10<B extends core.int>() => null;
-  core.List<core.int> Function(int x0, {int x}) m11<B extends core.int>() =>
-      null;
-  core.List<core.int> Function([core.List<core.int> x])
-      m12<B extends core.int>() => null;
-  List<T> Function(int y, [int x]) m13<B extends core.int>() => null;
-  List<T> Function(int x0, [List<Function> x1]) m14<B extends core.int>() =>
-      null;
-  List<T> Function(int x0, {List<T> x}) m15<B extends core.int>() => null;
-  Function(List<Function> x) m16<B extends core.int>() => null;
-  Function(int y, [List<T> x]) m17<B extends core.int>() => null;
-  void Function([Function x0]) m18<B extends core.int>() => null;
-  void Function({core.List<core.int> x}) m19<B extends core.int>() => null;
-  Function Function<A>(List<Function> x) m20<B extends core.int>() => null;
-  List<T> Function<A>(core.List<core.int> x) m21<B extends core.int>() => null;
-  List<A> Function<A>(List<T> x) m22<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(int x, [Function x2])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x, [Function x2]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(int x, [Function x2]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function(int x1, [int x2])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, [int x2]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function(int x1, [int x2]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(int x1, [List<T> x2])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, [List<T> x2]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int x1, [List<T> x2]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function([core.List<core.int> x1])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function([core.List<core.int> x1]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function([core.List<core.int> x1]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// int Function(int x1, [int x]) Function<B extends core.int>()
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, [int x]) Function<B extends core.int>() l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(
-        m4 is int Function(int x1, [int x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function([List<Function> x1]) Function<B extends core.int>()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function([List<Function> x1]) Function<B extends core.int>() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(
-        m5 is int Function([List<Function> x1]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function({List<T> x}) Function<B extends core.int>()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function({List<T> x}) Function<B extends core.int>() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is int Function({List<T> x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(int y, {Function x}) Function<B extends core.int>()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, {Function x}) Function<B extends core.int>() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int y, {Function x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x1, [List<T> x]) Function<B extends core.int>()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, [List<T> x]) Function<B extends core.int>() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x1, [List<T> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(Function x1) Function<B extends core.int>()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(Function x1) Function<B extends core.int>() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(Function x1)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x, [core.List<core.int> x1]) Function<B extends core.int>()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x, [core.List<core.int> x1])
-        Function<B extends core.int>() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x,
-            [core.List<core.int> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int x1, {int x}) Function<B extends core.int>()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, {int x}) Function<B extends core.int>()
-        l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(int x1, {int x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function([core.List<core.int> x]) Function<B extends core.int>()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([core.List<core.int> x])
-        Function<B extends core.int>() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function([core.List<core.int> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int y, [int x]) Function<B extends core.int>()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, [int x]) Function<B extends core.int>() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(
-        m13 is List<T> Function(int y, [int x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x2, [List<Function> x3]) Function<B extends core.int>()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x2, [List<Function> x3]) Function<B extends core.int>()
-        l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int x2, [List<Function> x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x1, {List<T> x}) Function<B extends core.int>()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, {List<T> x}) Function<B extends core.int>() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x1, {List<T> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(List<Function> x) Function<B extends core.int>()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(List<Function> x) Function<B extends core.int>() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function(List<Function> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int y, [List<T> x]) Function<B extends core.int>()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int y, [List<T> x]) Function<B extends core.int>() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(
-        m17 is Function(int y, [List<T> x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function([Function x1]) Function<B extends core.int>()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function([Function x1]) Function<B extends core.int>() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(
-        m18 is void Function([Function x1]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function({core.List<core.int> x}) Function<B extends core.int>()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function({core.List<core.int> x}) Function<B extends core.int>() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function({core.List<core.int> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// Function Function<A>(List<Function> x) Function<B extends core.int>()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(List<Function> x) Function<B extends core.int>() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is Function Function<A>(List<Function> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(core.List<core.int> x) Function<B extends core.int>()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(core.List<core.int> x) Function<B extends core.int>()
-        l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<T> Function<A>(core.List<core.int> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>(List<T> x) Function<B extends core.int>()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(List<T> x) Function<B extends core.int>() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(
-        m22 is List<A> Function<A>(List<T> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-    // The static function has its T always set to int.
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isFalse(f22 is F22<bool>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    Expect.isFalse(confuse(f22) is F22<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x22 = (f22 as dynamic);
-      });
-      Expect.throws(() {
-        x22 = confuse(f22);
-      });
-      Expect.throws(() {
-        l22 = (f22 as dynamic);
-      });
-      Expect.throws(() {
-        l22 = confuse(f22);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m22 is F22<int>);
-      Expect.equals(tIsBool, m22 is F22<bool>);
-      Expect.equals(tIsInt, confuse(m22) is F22<int>);
-      Expect.equals(tIsBool, confuse(m22) is F22<bool>);
-    }
-  }
-}
-
-void main() {
-  new U74().runTests();
-  new U74<int>(tIsInt: true).runTests();
-  new U74<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type75_test.dart b/tests/language_2/function_type/function_type75_test.dart
deleted file mode 100644
index f6f205402b9..00000000000
--- a/tests/language_2/function_type/function_type75_test.dart
+++ /dev/null
@@ -1,1006 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function({Function x});
-typedef F1<T> = core.List<core.int> Function(int x, [int x2]);
-typedef F2<T> = List<T> Function(int x, [List<T> x2]);
-typedef F3<T> = void Function(int x1, [core.List<core.int> x2]);
-typedef F4<T> = int Function(int x1, [int x]) Function<B extends core.int>(
-    int x);
-typedef F5<T> = int Function([List<Function> x1]) Function<B extends core.int>(
-    int x);
-typedef F6<T> = int Function({List<T> x}) Function<B extends core.int>(int x);
-typedef F7<T> = Function Function(int y, {Function x})
-    Function<B extends core.int>(int x);
-typedef F8<T> = Function Function(int x1, [List<T> x])
-    Function<B extends core.int>(int x);
-typedef F9<T> = List<Function> Function(Function x1)
-    Function<B extends core.int>(int x);
-typedef F10<T> = List<Function> Function(int x, [core.List<core.int> x1])
-    Function<B extends core.int>(int x);
-typedef F11<T> = core.List<core.int> Function(int x1, {int x})
-    Function<B extends core.int>(int x);
-typedef F12<T> = core.List<core.int> Function([core.List<core.int> x])
-    Function<B extends core.int>(int x);
-typedef F13<T> = List<T> Function(int y, [int x]) Function<B extends core.int>(
-    int x);
-typedef F14<T> = List<T> Function(int x2, [List<Function> x3])
-    Function<B extends core.int>(int x);
-typedef F15<T> = List<T> Function(int x1, {List<T> x})
-    Function<B extends core.int>(int x);
-typedef F16<T> = Function(List<Function> x) Function<B extends core.int>(int x);
-typedef F17<T> = Function(int y, [List<T> x]) Function<B extends core.int>(
-    int x);
-typedef F18<T> = void Function([Function x1]) Function<B extends core.int>(
-    int x);
-typedef F19<T> = void Function({core.List<core.int> x})
-    Function<B extends core.int>(int x);
-typedef F20<T> = Function Function<A>(List<Function> x)
-    Function<B extends core.int>(int x);
-typedef F21<T> = List<T> Function<A>(core.List<core.int> x)
-    Function<B extends core.int>(int x);
-typedef F22<T> = List<A> Function<A>(List<T> x) Function<B extends core.int>(
-    int x);
-
-Function f0({Function x}) => null;
-core.List<core.int> f1(int x, [int x0]) => null;
-List<int> f2(int x, [List<int> x0]) => null;
-void f3(int x0, [core.List<core.int> x1]) => null;
-int Function(int x0, [int x]) f4<B extends core.int>(int x) => null;
-int Function([List<Function> x0]) f5<B extends core.int>(int x) => null;
-int Function({List<int> x}) f6<B extends core.int>(int x) => null;
-Function Function(int y, {Function x}) f7<B extends core.int>(int x) => null;
-Function Function(int x0, [List<int> x]) f8<B extends core.int>(int x) => null;
-List<Function> Function(Function x0) f9<B extends core.int>(int x) => null;
-List<Function> Function(int x, [core.List<core.int> x0])
-    f10<B extends core.int>(int x) => null;
-core.List<core.int> Function(int x0, {int x}) f11<B extends core.int>(int x) =>
-    null;
-core.List<core.int> Function([core.List<core.int> x]) f12<B extends core.int>(
-        int x) =>
-    null;
-List<int> Function(int y, [int x]) f13<B extends core.int>(int x) => null;
-List<int> Function(int x0, [List<Function> x1]) f14<B extends core.int>(
-        int x) =>
-    null;
-List<int> Function(int x0, {List<int> x}) f15<B extends core.int>(int x) =>
-    null;
-Function(List<Function> x) f16<B extends core.int>(int x) => null;
-Function(int y, [List<int> x]) f17<B extends core.int>(int x) => null;
-void Function([Function x0]) f18<B extends core.int>(int x) => null;
-void Function({core.List<core.int> x}) f19<B extends core.int>(int x) => null;
-Function Function<A>(List<Function> x) f20<B extends core.int>(int x) => null;
-List<int> Function<A>(core.List<core.int> x) f21<B extends core.int>(int x) =>
-    null;
-List<A> Function<A>(List<int> x) f22<B extends core.int>(int x) => null;
-
-class U75<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function({Function x}) x0;
-  core.List<core.int> Function(int x, [int x2]) x1;
-  List<T> Function(int x, [List<T> x2]) x2;
-  void Function(int x1, [core.List<core.int> x2]) x3;
-  int Function(int x1, [int x]) Function<B extends core.int>(int x) x4;
-  int Function([List<Function> x1]) Function<B extends core.int>(int x) x5;
-  int Function({List<T> x}) Function<B extends core.int>(int x) x6;
-  Function Function(int y, {Function x}) Function<B extends core.int>(int x) x7;
-  Function Function(int x1, [List<T> x]) Function<B extends core.int>(int x) x8;
-  List<Function> Function(Function x1) Function<B extends core.int>(int x) x9;
-  List<Function> Function(int x, [core.List<core.int> x1])
-      Function<B extends core.int>(int x) x10;
-  core.List<core.int> Function(int x1, {int x}) Function<B extends core.int>(
-      int x) x11;
-  core.List<core.int> Function([core.List<core.int> x])
-      Function<B extends core.int>(int x) x12;
-  List<T> Function(int y, [int x]) Function<B extends core.int>(int x) x13;
-  List<T> Function(int x2, [List<Function> x3]) Function<B extends core.int>(
-      int x) x14;
-  List<T> Function(int x1, {List<T> x}) Function<B extends core.int>(int x) x15;
-  Function(List<Function> x) Function<B extends core.int>(int x) x16;
-  Function(int y, [List<T> x]) Function<B extends core.int>(int x) x17;
-  void Function([Function x1]) Function<B extends core.int>(int x) x18;
-  void Function({core.List<core.int> x}) Function<B extends core.int>(int x)
-      x19;
-  Function Function<A>(List<Function> x) Function<B extends core.int>(int x)
-      x20;
-  List<T> Function<A>(core.List<core.int> x) Function<B extends core.int>(int x)
-      x21;
-  List<A> Function<A>(List<T> x) Function<B extends core.int>(int x) x22;
-
-  U75({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0({Function x}) => null;
-  core.List<core.int> m1(int x, [int x0]) => null;
-  List<T> m2(int x, [List<T> x0]) => null;
-  void m3(int x0, [core.List<core.int> x1]) => null;
-  int Function(int x0, [int x]) m4<B extends core.int>(int x) => null;
-  int Function([List<Function> x0]) m5<B extends core.int>(int x) => null;
-  int Function({List<T> x}) m6<B extends core.int>(int x) => null;
-  Function Function(int y, {Function x}) m7<B extends core.int>(int x) => null;
-  Function Function(int x0, [List<T> x]) m8<B extends core.int>(int x) => null;
-  List<Function> Function(Function x0) m9<B extends core.int>(int x) => null;
-  List<Function> Function(int x, [core.List<core.int> x0])
-      m10<B extends core.int>(int x) => null;
-  core.List<core.int> Function(int x0, {int x}) m11<B extends core.int>(
-          int x) =>
-      null;
-  core.List<core.int> Function([core.List<core.int> x]) m12<B extends core.int>(
-          int x) =>
-      null;
-  List<T> Function(int y, [int x]) m13<B extends core.int>(int x) => null;
-  List<T> Function(int x0, [List<Function> x1]) m14<B extends core.int>(
-          int x) =>
-      null;
-  List<T> Function(int x0, {List<T> x}) m15<B extends core.int>(int x) => null;
-  Function(List<Function> x) m16<B extends core.int>(int x) => null;
-  Function(int y, [List<T> x]) m17<B extends core.int>(int x) => null;
-  void Function([Function x0]) m18<B extends core.int>(int x) => null;
-  void Function({core.List<core.int> x}) m19<B extends core.int>(int x) => null;
-  Function Function<A>(List<Function> x) m20<B extends core.int>(int x) => null;
-  List<T> Function<A>(core.List<core.int> x) m21<B extends core.int>(int x) =>
-      null;
-  List<A> Function<A>(List<T> x) m22<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function({Function x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function({Function x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function({Function x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function(int x, [int x2])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x, [int x2]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function(int x, [int x2]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(int x, [List<T> x2])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x, [List<T> x2]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int x, [List<T> x2]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(int x1, [core.List<core.int> x2])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, [core.List<core.int> x2]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int x1, [core.List<core.int> x2]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// int Function(int x1, [int x]) Function<B extends core.int>(int x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, [int x]) Function<B extends core.int>(int x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is int Function(int x1, [int x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function([List<Function> x1]) Function<B extends core.int>(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function([List<Function> x1]) Function<B extends core.int>(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function([List<Function> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function({List<T> x}) Function<B extends core.int>(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function({List<T> x}) Function<B extends core.int>(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is int Function({List<T> x}) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(int y, {Function x}) Function<B extends core.int>(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, {Function x}) Function<B extends core.int>(int x)
-        l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int y, {Function x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x1, [List<T> x]) Function<B extends core.int>(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, [List<T> x]) Function<B extends core.int>(int x)
-        l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x1, [List<T> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(Function x1) Function<B extends core.int>(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(Function x1) Function<B extends core.int>(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(Function x1)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x, [core.List<core.int> x1]) Function<B extends core.int>(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x, [core.List<core.int> x1])
-        Function<B extends core.int>(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x,
-            [core.List<core.int> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int x1, {int x}) Function<B extends core.int>(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, {int x}) Function<B extends core.int>(
-        int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(int x1, {int x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function([core.List<core.int> x]) Function<B extends core.int>(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([core.List<core.int> x])
-        Function<B extends core.int>(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function([core.List<core.int> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int y, [int x]) Function<B extends core.int>(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, [int x]) Function<B extends core.int>(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function(int y, [int x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x2, [List<Function> x3]) Function<B extends core.int>(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x2, [List<Function> x3]) Function<B extends core.int>(
-        int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int x2, [List<Function> x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int x1, {List<T> x}) Function<B extends core.int>(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, {List<T> x}) Function<B extends core.int>(int x)
-        l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int x1, {List<T> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(List<Function> x) Function<B extends core.int>(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(List<Function> x) Function<B extends core.int>(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function(List<Function> x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int y, [List<T> x]) Function<B extends core.int>(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int y, [List<T> x]) Function<B extends core.int>(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int y, [List<T> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function([Function x1]) Function<B extends core.int>(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function([Function x1]) Function<B extends core.int>(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function([Function x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function({core.List<core.int> x}) Function<B extends core.int>(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function({core.List<core.int> x}) Function<B extends core.int>(int x)
-        l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function({core.List<core.int> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// Function Function<A>(List<Function> x) Function<B extends core.int>(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(List<Function> x) Function<B extends core.int>(int x)
-        l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is Function Function<A>(List<Function> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(core.List<core.int> x) Function<B extends core.int>(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(core.List<core.int> x) Function<B extends core.int>(
-        int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<T> Function<A>(core.List<core.int> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>(List<T> x) Function<B extends core.int>(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(List<T> x) Function<B extends core.int>(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is List<A> Function<A>(List<T> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-    // The static function has its T always set to int.
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isFalse(f22 is F22<bool>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    Expect.isFalse(confuse(f22) is F22<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x22 = (f22 as dynamic);
-      });
-      Expect.throws(() {
-        x22 = confuse(f22);
-      });
-      Expect.throws(() {
-        l22 = (f22 as dynamic);
-      });
-      Expect.throws(() {
-        l22 = confuse(f22);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m22 is F22<int>);
-      Expect.equals(tIsBool, m22 is F22<bool>);
-      Expect.equals(tIsInt, confuse(m22) is F22<int>);
-      Expect.equals(tIsBool, confuse(m22) is F22<bool>);
-    }
-  }
-}
-
-void main() {
-  new U75().runTests();
-  new U75<int>(tIsInt: true).runTests();
-  new U75<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type76_test.dart b/tests/language_2/function_type/function_type76_test.dart
deleted file mode 100644
index f1c1ef902e2..00000000000
--- a/tests/language_2/function_type/function_type76_test.dart
+++ /dev/null
@@ -1,920 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(int x0, {Function x});
-typedef F1<T> = core.List<core.int> Function({int x});
-typedef F2<T> = List<T> Function({List<T> x});
-typedef F3<T> = void Function(int x, [core.List<core.int> x2]);
-typedef F4<T> = int Function(int y, [int x]) Function();
-typedef F5<T> = int Function(int x1, [List<Function> x2]) Function();
-typedef F6<T> = int Function(int x0, {List<T> x}) Function();
-typedef F7<T> = Function Function(List<Function> x) Function();
-typedef F8<T> = Function Function(int y, [List<T> x]) Function();
-typedef F9<T> = List<Function> Function([Function x1]) Function();
-typedef F10<T> = List<Function> Function({core.List<core.int> x}) Function();
-typedef F11<T> = core.List<core.int> Function(int y, {int x}) Function();
-typedef F12<T> = core.List<core.int> Function(int x0, [core.List<core.int> x])
-    Function();
-typedef F13<T> = List<T> Function(int x0) Function();
-typedef F14<T> = List<T> Function(int x, [List<Function> x2]) Function();
-typedef F15<T> = List<T> Function(int y, {List<T> x}) Function();
-typedef F16<T> = Function([List<Function> x]) Function();
-typedef F17<T> = Function(List<T> x0) Function();
-typedef F18<T> = void Function(int x1, [Function x2]) Function();
-typedef F19<T> = void Function(int x0, {core.List<core.int> x}) Function();
-typedef F20<T> = Function Function<A>(core.List<core.int> x) Function();
-typedef F21<T> = List<T> Function<A>(List<T> x) Function();
-typedef F22<T> = List<A> Function<A>() Function();
-
-Function f0(int x0, {Function x}) => null;
-core.List<core.int> f1({int x}) => null;
-List<int> f2({List<int> x}) => null;
-void f3(int x, [core.List<core.int> x0]) => null;
-int Function(int y, [int x]) f4() => null;
-int Function(int x0, [List<Function> x1]) f5() => null;
-int Function(int x0, {List<int> x}) f6() => null;
-Function Function(List<Function> x) f7() => null;
-Function Function(int y, [List<int> x]) f8() => null;
-List<Function> Function([Function x0]) f9() => null;
-List<Function> Function({core.List<core.int> x}) f10() => null;
-core.List<core.int> Function(int y, {int x}) f11() => null;
-core.List<core.int> Function(int x0, [core.List<core.int> x]) f12() => null;
-List<int> Function(int x0) f13() => null;
-List<int> Function(int x, [List<Function> x0]) f14() => null;
-List<int> Function(int y, {List<int> x}) f15() => null;
-Function([List<Function> x]) f16() => null;
-Function(List<int> x0) f17() => null;
-void Function(int x0, [Function x1]) f18() => null;
-void Function(int x0, {core.List<core.int> x}) f19() => null;
-Function Function<A>(core.List<core.int> x) f20() => null;
-List<int> Function<A>(List<int> x) f21() => null;
-List<A> Function<A>() f22() => null;
-
-class U76<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(int x0, {Function x}) x0;
-  core.List<core.int> Function({int x}) x1;
-  List<T> Function({List<T> x}) x2;
-  void Function(int x, [core.List<core.int> x2]) x3;
-  int Function(int y, [int x]) Function() x4;
-  int Function(int x1, [List<Function> x2]) Function() x5;
-  int Function(int x0, {List<T> x}) Function() x6;
-  Function Function(List<Function> x) Function() x7;
-  Function Function(int y, [List<T> x]) Function() x8;
-  List<Function> Function([Function x1]) Function() x9;
-  List<Function> Function({core.List<core.int> x}) Function() x10;
-  core.List<core.int> Function(int y, {int x}) Function() x11;
-  core.List<core.int> Function(int x0, [core.List<core.int> x]) Function() x12;
-  List<T> Function(int x0) Function() x13;
-  List<T> Function(int x, [List<Function> x2]) Function() x14;
-  List<T> Function(int y, {List<T> x}) Function() x15;
-  Function([List<Function> x]) Function() x16;
-  Function(List<T> x0) Function() x17;
-  void Function(int x1, [Function x2]) Function() x18;
-  void Function(int x0, {core.List<core.int> x}) Function() x19;
-  Function Function<A>(core.List<core.int> x) Function() x20;
-  List<T> Function<A>(List<T> x) Function() x21;
-  List<A> Function<A>() Function() x22;
-
-  U76({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(int x0, {Function x}) => null;
-  core.List<core.int> m1({int x}) => null;
-  List<T> m2({List<T> x}) => null;
-  void m3(int x, [core.List<core.int> x0]) => null;
-  int Function(int y, [int x]) m4() => null;
-  int Function(int x0, [List<Function> x1]) m5() => null;
-  int Function(int x0, {List<T> x}) m6() => null;
-  Function Function(List<Function> x) m7() => null;
-  Function Function(int y, [List<T> x]) m8() => null;
-  List<Function> Function([Function x0]) m9() => null;
-  List<Function> Function({core.List<core.int> x}) m10() => null;
-  core.List<core.int> Function(int y, {int x}) m11() => null;
-  core.List<core.int> Function(int x0, [core.List<core.int> x]) m12() => null;
-  List<T> Function(int x0) m13() => null;
-  List<T> Function(int x, [List<Function> x0]) m14() => null;
-  List<T> Function(int y, {List<T> x}) m15() => null;
-  Function([List<Function> x]) m16() => null;
-  Function(List<T> x0) m17() => null;
-  void Function(int x0, [Function x1]) m18() => null;
-  void Function(int x0, {core.List<core.int> x}) m19() => null;
-  Function Function<A>(core.List<core.int> x) m20() => null;
-  List<T> Function<A>(List<T> x) m21() => null;
-  List<A> Function<A>() m22() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(int x0, {Function x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x0, {Function x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(int x0, {Function x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function({int x})
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function({int x}) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function({int x}));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function({List<T> x})
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function({List<T> x}) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function({List<T> x}));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(int x, [core.List<core.int> x2])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int x, [core.List<core.int> x2]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int x, [core.List<core.int> x2]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// int Function(int y, [int x]) Function()
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, [int x]) Function() l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is int Function(int y, [int x]) Function());
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x1, [List<Function> x2]) Function()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, [List<Function> x2]) Function() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x1, [List<Function> x2]) Function());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x0, {List<T> x}) Function()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x0, {List<T> x}) Function() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int x0, {List<T> x}) Function());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(List<Function> x) Function()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(List<Function> x) Function() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(List<Function> x) Function());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int y, [List<T> x]) Function()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, [List<T> x]) Function() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int y, [List<T> x]) Function());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function([Function x1]) Function()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([Function x1]) Function() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function([Function x1]) Function());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function({core.List<core.int> x}) Function()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function({core.List<core.int> x}) Function() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(
-        m10 is List<Function> Function({core.List<core.int> x}) Function());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int y, {int x}) Function()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, {int x}) Function() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is core.List<core.int> Function(int y, {int x}) Function());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x0, [core.List<core.int> x]) Function()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x0, [core.List<core.int> x]) Function()
-        l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x0,
-            [core.List<core.int> x])
-        Function());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int x0) Function()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x0) Function() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function(int x0) Function());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x, [List<Function> x2]) Function()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x, [List<Function> x2]) Function() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(
-        m14 is List<T> Function(int x, [List<Function> x2]) Function());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, {List<T> x}) Function()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, {List<T> x}) Function() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int y, {List<T> x}) Function());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function([List<Function> x]) Function()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function([List<Function> x]) Function() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function([List<Function> x]) Function());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(List<T> x0) Function()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(List<T> x0) Function() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(List<T> x0) Function());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(int x1, [Function x2]) Function()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, [Function x2]) Function() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x1, [Function x2]) Function());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x0, {core.List<core.int> x}) Function()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x0, {core.List<core.int> x}) Function() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(
-        m19 is void Function(int x0, {core.List<core.int> x}) Function());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// Function Function<A>(core.List<core.int> x) Function()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(core.List<core.int> x) Function() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(
-        m20 is Function Function<A>(core.List<core.int> x) Function());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(List<T> x) Function()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(List<T> x) Function() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<T> Function<A>(List<T> x) Function());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>() Function()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>() Function() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is List<A> Function<A>() Function());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U76().runTests();
-  new U76<int>(tIsInt: true).runTests();
-  new U76<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type77_test.dart b/tests/language_2/function_type/function_type77_test.dart
deleted file mode 100644
index fd100137d2e..00000000000
--- a/tests/language_2/function_type/function_type77_test.dart
+++ /dev/null
@@ -1,925 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(int y, {Function x});
-typedef F1<T> = core.List<core.int> Function(int x0, {int x});
-typedef F2<T> = List<T> Function(int x0, {List<T> x});
-typedef F3<T> = void Function({core.List<core.int> x});
-typedef F4<T> = int Function(int y, [int x]) Function(int x);
-typedef F5<T> = int Function(int x2, [List<Function> x3]) Function(int x);
-typedef F6<T> = int Function(int x1, {List<T> x}) Function(int x);
-typedef F7<T> = Function Function(List<Function> x) Function(int x);
-typedef F8<T> = Function Function(int y, [List<T> x]) Function(int x);
-typedef F9<T> = List<Function> Function([Function x1]) Function(int x);
-typedef F10<T> = List<Function> Function({core.List<core.int> x}) Function(
-    int x);
-typedef F11<T> = core.List<core.int> Function(int y, {int x}) Function(int x);
-typedef F12<T> = core.List<core.int> Function(int x1, [core.List<core.int> x])
-    Function(int x);
-typedef F13<T> = List<T> Function(int x1) Function(int x);
-typedef F14<T> = List<T> Function(int x, [List<Function> x1]) Function(int x);
-typedef F15<T> = List<T> Function(int y, {List<T> x}) Function(int x);
-typedef F16<T> = Function([List<Function> x]) Function(int x);
-typedef F17<T> = Function(List<T> x1) Function(int x);
-typedef F18<T> = void Function(int x2, [Function x3]) Function(int x);
-typedef F19<T> = void Function(int x1, {core.List<core.int> x}) Function(int x);
-typedef F20<T> = Function Function<A>(core.List<core.int> x) Function(int x);
-typedef F21<T> = List<T> Function<A>(List<T> x) Function(int x);
-typedef F22<T> = List<A> Function<A>() Function(int x);
-
-Function f0(int y, {Function x}) => null;
-core.List<core.int> f1(int x0, {int x}) => null;
-List<int> f2(int x0, {List<int> x}) => null;
-void f3({core.List<core.int> x}) => null;
-int Function(int y, [int x]) f4(int x) => null;
-int Function(int x0, [List<Function> x1]) f5(int x) => null;
-int Function(int x0, {List<int> x}) f6(int x) => null;
-Function Function(List<Function> x) f7(int x) => null;
-Function Function(int y, [List<int> x]) f8(int x) => null;
-List<Function> Function([Function x0]) f9(int x) => null;
-List<Function> Function({core.List<core.int> x}) f10(int x) => null;
-core.List<core.int> Function(int y, {int x}) f11(int x) => null;
-core.List<core.int> Function(int x0, [core.List<core.int> x]) f12(int x) =>
-    null;
-List<int> Function(int x0) f13(int x) => null;
-List<int> Function(int x, [List<Function> x0]) f14(int x) => null;
-List<int> Function(int y, {List<int> x}) f15(int x) => null;
-Function([List<Function> x]) f16(int x) => null;
-Function(List<int> x0) f17(int x) => null;
-void Function(int x0, [Function x1]) f18(int x) => null;
-void Function(int x0, {core.List<core.int> x}) f19(int x) => null;
-Function Function<A>(core.List<core.int> x) f20(int x) => null;
-List<int> Function<A>(List<int> x) f21(int x) => null;
-List<A> Function<A>() f22(int x) => null;
-
-class U77<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(int y, {Function x}) x0;
-  core.List<core.int> Function(int x0, {int x}) x1;
-  List<T> Function(int x0, {List<T> x}) x2;
-  void Function({core.List<core.int> x}) x3;
-  int Function(int y, [int x]) Function(int x) x4;
-  int Function(int x2, [List<Function> x3]) Function(int x) x5;
-  int Function(int x1, {List<T> x}) Function(int x) x6;
-  Function Function(List<Function> x) Function(int x) x7;
-  Function Function(int y, [List<T> x]) Function(int x) x8;
-  List<Function> Function([Function x1]) Function(int x) x9;
-  List<Function> Function({core.List<core.int> x}) Function(int x) x10;
-  core.List<core.int> Function(int y, {int x}) Function(int x) x11;
-  core.List<core.int> Function(int x1, [core.List<core.int> x]) Function(int x)
-      x12;
-  List<T> Function(int x1) Function(int x) x13;
-  List<T> Function(int x, [List<Function> x1]) Function(int x) x14;
-  List<T> Function(int y, {List<T> x}) Function(int x) x15;
-  Function([List<Function> x]) Function(int x) x16;
-  Function(List<T> x1) Function(int x) x17;
-  void Function(int x2, [Function x3]) Function(int x) x18;
-  void Function(int x1, {core.List<core.int> x}) Function(int x) x19;
-  Function Function<A>(core.List<core.int> x) Function(int x) x20;
-  List<T> Function<A>(List<T> x) Function(int x) x21;
-  List<A> Function<A>() Function(int x) x22;
-
-  U77({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(int y, {Function x}) => null;
-  core.List<core.int> m1(int x0, {int x}) => null;
-  List<T> m2(int x0, {List<T> x}) => null;
-  void m3({core.List<core.int> x}) => null;
-  int Function(int y, [int x]) m4(int x) => null;
-  int Function(int x0, [List<Function> x1]) m5(int x) => null;
-  int Function(int x0, {List<T> x}) m6(int x) => null;
-  Function Function(List<Function> x) m7(int x) => null;
-  Function Function(int y, [List<T> x]) m8(int x) => null;
-  List<Function> Function([Function x0]) m9(int x) => null;
-  List<Function> Function({core.List<core.int> x}) m10(int x) => null;
-  core.List<core.int> Function(int y, {int x}) m11(int x) => null;
-  core.List<core.int> Function(int x0, [core.List<core.int> x]) m12(int x) =>
-      null;
-  List<T> Function(int x0) m13(int x) => null;
-  List<T> Function(int x, [List<Function> x0]) m14(int x) => null;
-  List<T> Function(int y, {List<T> x}) m15(int x) => null;
-  Function([List<Function> x]) m16(int x) => null;
-  Function(List<T> x0) m17(int x) => null;
-  void Function(int x0, [Function x1]) m18(int x) => null;
-  void Function(int x0, {core.List<core.int> x}) m19(int x) => null;
-  Function Function<A>(core.List<core.int> x) m20(int x) => null;
-  List<T> Function<A>(List<T> x) m21(int x) => null;
-  List<A> Function<A>() m22(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(int y, {Function x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, {Function x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(int y, {Function x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function(int x0, {int x})
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x0, {int x}) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function(int x0, {int x}));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(int x0, {List<T> x})
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x0, {List<T> x}) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int x0, {List<T> x}));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function({core.List<core.int> x})
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function({core.List<core.int> x}) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function({core.List<core.int> x}));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// int Function(int y, [int x]) Function(int x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, [int x]) Function(int x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is int Function(int y, [int x]) Function(int x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x2, [List<Function> x3]) Function(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x2, [List<Function> x3]) Function(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(
-        m5 is int Function(int x2, [List<Function> x3]) Function(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x1, {List<T> x}) Function(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, {List<T> x}) Function(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int x1, {List<T> x}) Function(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(List<Function> x) Function(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(List<Function> x) Function(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(List<Function> x) Function(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int y, [List<T> x]) Function(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, [List<T> x]) Function(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int y, [List<T> x]) Function(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function([Function x1]) Function(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([Function x1]) Function(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function([Function x1]) Function(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function({core.List<core.int> x}) Function(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function({core.List<core.int> x}) Function(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function({core.List<core.int> x})
-        Function(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int y, {int x}) Function(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, {int x}) Function(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is core.List<core.int> Function(int y, {int x}) Function(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x1, [core.List<core.int> x]) Function(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, [core.List<core.int> x]) Function(
-        int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x1,
-            [core.List<core.int> x])
-        Function(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int x1) Function(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1) Function(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function(int x1) Function(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x, [List<Function> x1]) Function(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x, [List<Function> x1]) Function(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(
-        m14 is List<T> Function(int x, [List<Function> x1]) Function(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, {List<T> x}) Function(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, {List<T> x}) Function(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int y, {List<T> x}) Function(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function([List<Function> x]) Function(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function([List<Function> x]) Function(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function([List<Function> x]) Function(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(List<T> x1) Function(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(List<T> x1) Function(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(List<T> x1) Function(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(int x2, [Function x3]) Function(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x2, [Function x3]) Function(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x2, [Function x3]) Function(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x1, {core.List<core.int> x}) Function(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, {core.List<core.int> x}) Function(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(
-        m19 is void Function(int x1, {core.List<core.int> x}) Function(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// Function Function<A>(core.List<core.int> x) Function(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(core.List<core.int> x) Function(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(
-        m20 is Function Function<A>(core.List<core.int> x) Function(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(List<T> x) Function(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(List<T> x) Function(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<T> Function<A>(List<T> x) Function(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>() Function(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>() Function(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is List<A> Function<A>() Function(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U77().runTests();
-  new U77<int>(tIsInt: true).runTests();
-  new U77<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type78_test.dart b/tests/language_2/function_type/function_type78_test.dart
deleted file mode 100644
index 2052c5ea673..00000000000
--- a/tests/language_2/function_type/function_type78_test.dart
+++ /dev/null
@@ -1,963 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(List<Function> x);
-typedef F1<T> = core.List<core.int> Function(int y, {int x});
-typedef F2<T> = List<T> Function(int y, {List<T> x});
-typedef F3<T> = void Function(int x0, {core.List<core.int> x});
-typedef F4<T> = int Function(int y, [int x]) Function<B extends core.int>();
-typedef F5<T> = int Function(int x2, [List<Function> x3])
-    Function<B extends core.int>();
-typedef F6<T> = int Function(int x1, {List<T> x})
-    Function<B extends core.int>();
-typedef F7<T> = Function Function(List<Function> x)
-    Function<B extends core.int>();
-typedef F8<T> = Function Function(int y, [List<T> x])
-    Function<B extends core.int>();
-typedef F9<T> = List<Function> Function([Function x1])
-    Function<B extends core.int>();
-typedef F10<T> = List<Function> Function({core.List<core.int> x})
-    Function<B extends core.int>();
-typedef F11<T> = core.List<core.int> Function(int y, {int x})
-    Function<B extends core.int>();
-typedef F12<T> = core.List<core.int> Function(int x1, [core.List<core.int> x])
-    Function<B extends core.int>();
-typedef F13<T> = List<T> Function(int x1) Function<B extends core.int>();
-typedef F14<T> = List<T> Function(int x, [List<Function> x1])
-    Function<B extends core.int>();
-typedef F15<T> = List<T> Function(int y, {List<T> x})
-    Function<B extends core.int>();
-typedef F16<T> = Function([List<Function> x]) Function<B extends core.int>();
-typedef F17<T> = Function(List<T> x1) Function<B extends core.int>();
-typedef F18<T> = void Function(int x2, [Function x3])
-    Function<B extends core.int>();
-typedef F19<T> = void Function(int x1, {core.List<core.int> x})
-    Function<B extends core.int>();
-typedef F20<T> = Function Function<A>(core.List<core.int> x)
-    Function<B extends core.int>();
-typedef F21<T> = List<T> Function<A>(List<T> x) Function<B extends core.int>();
-typedef F22<T> = List<A> Function<A>() Function<B extends core.int>();
-
-Function f0(List<Function> x) => null;
-core.List<core.int> f1(int y, {int x}) => null;
-List<int> f2(int y, {List<int> x}) => null;
-void f3(int x0, {core.List<core.int> x}) => null;
-int Function(int y, [int x]) f4<B extends core.int>() => null;
-int Function(int x0, [List<Function> x1]) f5<B extends core.int>() => null;
-int Function(int x0, {List<int> x}) f6<B extends core.int>() => null;
-Function Function(List<Function> x) f7<B extends core.int>() => null;
-Function Function(int y, [List<int> x]) f8<B extends core.int>() => null;
-List<Function> Function([Function x0]) f9<B extends core.int>() => null;
-List<Function> Function({core.List<core.int> x}) f10<B extends core.int>() =>
-    null;
-core.List<core.int> Function(int y, {int x}) f11<B extends core.int>() => null;
-core.List<core.int> Function(int x0, [core.List<core.int> x])
-    f12<B extends core.int>() => null;
-List<int> Function(int x0) f13<B extends core.int>() => null;
-List<int> Function(int x, [List<Function> x0]) f14<B extends core.int>() =>
-    null;
-List<int> Function(int y, {List<int> x}) f15<B extends core.int>() => null;
-Function([List<Function> x]) f16<B extends core.int>() => null;
-Function(List<int> x0) f17<B extends core.int>() => null;
-void Function(int x0, [Function x1]) f18<B extends core.int>() => null;
-void Function(int x0, {core.List<core.int> x}) f19<B extends core.int>() =>
-    null;
-Function Function<A>(core.List<core.int> x) f20<B extends core.int>() => null;
-List<int> Function<A>(List<int> x) f21<B extends core.int>() => null;
-List<A> Function<A>() f22<B extends core.int>() => null;
-
-class U78<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(List<Function> x) x0;
-  core.List<core.int> Function(int y, {int x}) x1;
-  List<T> Function(int y, {List<T> x}) x2;
-  void Function(int x0, {core.List<core.int> x}) x3;
-  int Function(int y, [int x]) Function<B extends core.int>() x4;
-  int Function(int x2, [List<Function> x3]) Function<B extends core.int>() x5;
-  int Function(int x1, {List<T> x}) Function<B extends core.int>() x6;
-  Function Function(List<Function> x) Function<B extends core.int>() x7;
-  Function Function(int y, [List<T> x]) Function<B extends core.int>() x8;
-  List<Function> Function([Function x1]) Function<B extends core.int>() x9;
-  List<Function> Function({core.List<core.int> x})
-      Function<B extends core.int>() x10;
-  core.List<core.int> Function(int y, {int x}) Function<B extends core.int>()
-      x11;
-  core.List<core.int> Function(int x1, [core.List<core.int> x])
-      Function<B extends core.int>() x12;
-  List<T> Function(int x1) Function<B extends core.int>() x13;
-  List<T> Function(int x, [List<Function> x1]) Function<B extends core.int>()
-      x14;
-  List<T> Function(int y, {List<T> x}) Function<B extends core.int>() x15;
-  Function([List<Function> x]) Function<B extends core.int>() x16;
-  Function(List<T> x1) Function<B extends core.int>() x17;
-  void Function(int x2, [Function x3]) Function<B extends core.int>() x18;
-  void Function(int x1, {core.List<core.int> x}) Function<B extends core.int>()
-      x19;
-  Function Function<A>(core.List<core.int> x) Function<B extends core.int>()
-      x20;
-  List<T> Function<A>(List<T> x) Function<B extends core.int>() x21;
-  List<A> Function<A>() Function<B extends core.int>() x22;
-
-  U78({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(List<Function> x) => null;
-  core.List<core.int> m1(int y, {int x}) => null;
-  List<T> m2(int y, {List<T> x}) => null;
-  void m3(int x0, {core.List<core.int> x}) => null;
-  int Function(int y, [int x]) m4<B extends core.int>() => null;
-  int Function(int x0, [List<Function> x1]) m5<B extends core.int>() => null;
-  int Function(int x0, {List<T> x}) m6<B extends core.int>() => null;
-  Function Function(List<Function> x) m7<B extends core.int>() => null;
-  Function Function(int y, [List<T> x]) m8<B extends core.int>() => null;
-  List<Function> Function([Function x0]) m9<B extends core.int>() => null;
-  List<Function> Function({core.List<core.int> x}) m10<B extends core.int>() =>
-      null;
-  core.List<core.int> Function(int y, {int x}) m11<B extends core.int>() =>
-      null;
-  core.List<core.int> Function(int x0, [core.List<core.int> x])
-      m12<B extends core.int>() => null;
-  List<T> Function(int x0) m13<B extends core.int>() => null;
-  List<T> Function(int x, [List<Function> x0]) m14<B extends core.int>() =>
-      null;
-  List<T> Function(int y, {List<T> x}) m15<B extends core.int>() => null;
-  Function([List<Function> x]) m16<B extends core.int>() => null;
-  Function(List<T> x0) m17<B extends core.int>() => null;
-  void Function(int x0, [Function x1]) m18<B extends core.int>() => null;
-  void Function(int x0, {core.List<core.int> x}) m19<B extends core.int>() =>
-      null;
-  Function Function<A>(core.List<core.int> x) m20<B extends core.int>() => null;
-  List<T> Function<A>(List<T> x) m21<B extends core.int>() => null;
-  List<A> Function<A>() m22<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(List<Function> x)
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(List<Function> x) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(List<Function> x));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function(int y, {int x})
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, {int x}) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function(int y, {int x}));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function(int y, {List<T> x})
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, {List<T> x}) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function(int y, {List<T> x}));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(int x0, {core.List<core.int> x})
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int x0, {core.List<core.int> x}) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int x0, {core.List<core.int> x}));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// int Function(int y, [int x]) Function<B extends core.int>()
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, [int x]) Function<B extends core.int>() l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(
-        m4 is int Function(int y, [int x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x2, [List<Function> x3]) Function<B extends core.int>()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x2, [List<Function> x3]) Function<B extends core.int>() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x2, [List<Function> x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x1, {List<T> x}) Function<B extends core.int>()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, {List<T> x}) Function<B extends core.int>() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is int Function(int x1, {List<T> x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(List<Function> x) Function<B extends core.int>()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(List<Function> x) Function<B extends core.int>() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(List<Function> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int y, [List<T> x]) Function<B extends core.int>()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, [List<T> x]) Function<B extends core.int>() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int y, [List<T> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function([Function x1]) Function<B extends core.int>()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([Function x1]) Function<B extends core.int>() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function([Function x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function({core.List<core.int> x}) Function<B extends core.int>()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function({core.List<core.int> x})
-        Function<B extends core.int>() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function({core.List<core.int> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int y, {int x}) Function<B extends core.int>()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, {int x}) Function<B extends core.int>()
-        l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(int y, {int x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x1, [core.List<core.int> x]) Function<B extends core.int>()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, [core.List<core.int> x])
-        Function<B extends core.int>() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x1,
-            [core.List<core.int> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int x1) Function<B extends core.int>()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1) Function<B extends core.int>() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(
-        m13 is List<T> Function(int x1) Function<B extends core.int>());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x, [List<Function> x1]) Function<B extends core.int>()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x, [List<Function> x1]) Function<B extends core.int>()
-        l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int x, [List<Function> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, {List<T> x}) Function<B extends core.int>()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, {List<T> x}) Function<B extends core.int>() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int y, {List<T> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function([List<Function> x]) Function<B extends core.int>()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function([List<Function> x]) Function<B extends core.int>() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function([List<Function> x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(List<T> x1) Function<B extends core.int>()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(List<T> x1) Function<B extends core.int>() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(List<T> x1) Function<B extends core.int>());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(int x2, [Function x3]) Function<B extends core.int>()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x2, [Function x3]) Function<B extends core.int>() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x2, [Function x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x1, {core.List<core.int> x}) Function<B extends core.int>()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, {core.List<core.int> x})
-        Function<B extends core.int>() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int x1, {core.List<core.int> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// Function Function<A>(core.List<core.int> x) Function<B extends core.int>()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(core.List<core.int> x) Function<B extends core.int>()
-        l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is Function Function<A>(core.List<core.int> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(List<T> x) Function<B extends core.int>()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(List<T> x) Function<B extends core.int>() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(
-        m21 is List<T> Function<A>(List<T> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>() Function<B extends core.int>()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>() Function<B extends core.int>() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is List<A> Function<A>() Function<B extends core.int>());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U78().runTests();
-  new U78<int>(tIsInt: true).runTests();
-  new U78<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type79_test.dart b/tests/language_2/function_type/function_type79_test.dart
deleted file mode 100644
index 9a172528be0..00000000000
--- a/tests/language_2/function_type/function_type79_test.dart
+++ /dev/null
@@ -1,981 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function([List<Function> x]);
-typedef F1<T> = core.List<core.int> Function(Function x);
-typedef F2<T> = List<T> Function();
-typedef F3<T> = void Function(int y, {core.List<core.int> x});
-typedef F4<T> = int Function(int y, [int x]) Function<B extends core.int>(
-    int x);
-typedef F5<T> = int Function(int x2, [List<Function> x3])
-    Function<B extends core.int>(int x);
-typedef F6<T> = int Function(int x1, {List<T> x}) Function<B extends core.int>(
-    int x);
-typedef F7<T> = Function Function(List<Function> x)
-    Function<B extends core.int>(int x);
-typedef F8<T> = Function Function(int y, [List<T> x])
-    Function<B extends core.int>(int x);
-typedef F9<T> = List<Function> Function([Function x1])
-    Function<B extends core.int>(int x);
-typedef F10<T> = List<Function> Function({core.List<core.int> x})
-    Function<B extends core.int>(int x);
-typedef F11<T> = core.List<core.int> Function(int y, {int x})
-    Function<B extends core.int>(int x);
-typedef F12<T> = core.List<core.int> Function(int x1, [core.List<core.int> x])
-    Function<B extends core.int>(int x);
-typedef F13<T> = List<T> Function(int x1) Function<B extends core.int>(int x);
-typedef F14<T> = List<T> Function(int x, [List<Function> x1])
-    Function<B extends core.int>(int x);
-typedef F15<T> = List<T> Function(int y, {List<T> x})
-    Function<B extends core.int>(int x);
-typedef F16<T> = Function([List<Function> x]) Function<B extends core.int>(
-    int x);
-typedef F17<T> = Function(List<T> x1) Function<B extends core.int>(int x);
-typedef F18<T> = void Function(int x2, [Function x3])
-    Function<B extends core.int>(int x);
-typedef F19<T> = void Function(int x1, {core.List<core.int> x})
-    Function<B extends core.int>(int x);
-typedef F20<T> = Function Function<A>(core.List<core.int> x)
-    Function<B extends core.int>(int x);
-typedef F21<T> = List<T> Function<A>(List<T> x) Function<B extends core.int>(
-    int x);
-typedef F22<T> = List<A> Function<A>() Function<B extends core.int>(int x);
-
-Function f0([List<Function> x]) => null;
-core.List<core.int> f1(Function x) => null;
-List<int> f2() => null;
-void f3(int y, {core.List<core.int> x}) => null;
-int Function(int y, [int x]) f4<B extends core.int>(int x) => null;
-int Function(int x0, [List<Function> x1]) f5<B extends core.int>(int x) => null;
-int Function(int x0, {List<int> x}) f6<B extends core.int>(int x) => null;
-Function Function(List<Function> x) f7<B extends core.int>(int x) => null;
-Function Function(int y, [List<int> x]) f8<B extends core.int>(int x) => null;
-List<Function> Function([Function x0]) f9<B extends core.int>(int x) => null;
-List<Function> Function({core.List<core.int> x}) f10<B extends core.int>(
-        int x) =>
-    null;
-core.List<core.int> Function(int y, {int x}) f11<B extends core.int>(int x) =>
-    null;
-core.List<core.int> Function(int x0, [core.List<core.int> x])
-    f12<B extends core.int>(int x) => null;
-List<int> Function(int x0) f13<B extends core.int>(int x) => null;
-List<int> Function(int x, [List<Function> x0]) f14<B extends core.int>(int x) =>
-    null;
-List<int> Function(int y, {List<int> x}) f15<B extends core.int>(int x) => null;
-Function([List<Function> x]) f16<B extends core.int>(int x) => null;
-Function(List<int> x0) f17<B extends core.int>(int x) => null;
-void Function(int x0, [Function x1]) f18<B extends core.int>(int x) => null;
-void Function(int x0, {core.List<core.int> x}) f19<B extends core.int>(int x) =>
-    null;
-Function Function<A>(core.List<core.int> x) f20<B extends core.int>(int x) =>
-    null;
-List<int> Function<A>(List<int> x) f21<B extends core.int>(int x) => null;
-List<A> Function<A>() f22<B extends core.int>(int x) => null;
-
-class U79<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function([List<Function> x]) x0;
-  core.List<core.int> Function(Function x) x1;
-  List<T> Function() x2;
-  void Function(int y, {core.List<core.int> x}) x3;
-  int Function(int y, [int x]) Function<B extends core.int>(int x) x4;
-  int Function(int x2, [List<Function> x3]) Function<B extends core.int>(int x)
-      x5;
-  int Function(int x1, {List<T> x}) Function<B extends core.int>(int x) x6;
-  Function Function(List<Function> x) Function<B extends core.int>(int x) x7;
-  Function Function(int y, [List<T> x]) Function<B extends core.int>(int x) x8;
-  List<Function> Function([Function x1]) Function<B extends core.int>(int x) x9;
-  List<Function> Function({core.List<core.int> x}) Function<B extends core.int>(
-      int x) x10;
-  core.List<core.int> Function(int y, {int x}) Function<B extends core.int>(
-      int x) x11;
-  core.List<core.int> Function(int x1, [core.List<core.int> x])
-      Function<B extends core.int>(int x) x12;
-  List<T> Function(int x1) Function<B extends core.int>(int x) x13;
-  List<T> Function(int x, [List<Function> x1]) Function<B extends core.int>(
-      int x) x14;
-  List<T> Function(int y, {List<T> x}) Function<B extends core.int>(int x) x15;
-  Function([List<Function> x]) Function<B extends core.int>(int x) x16;
-  Function(List<T> x1) Function<B extends core.int>(int x) x17;
-  void Function(int x2, [Function x3]) Function<B extends core.int>(int x) x18;
-  void Function(int x1, {core.List<core.int> x}) Function<B extends core.int>(
-      int x) x19;
-  Function Function<A>(core.List<core.int> x) Function<B extends core.int>(
-      int x) x20;
-  List<T> Function<A>(List<T> x) Function<B extends core.int>(int x) x21;
-  List<A> Function<A>() Function<B extends core.int>(int x) x22;
-
-  U79({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0([List<Function> x]) => null;
-  core.List<core.int> m1(Function x) => null;
-  List<T> m2() => null;
-  void m3(int y, {core.List<core.int> x}) => null;
-  int Function(int y, [int x]) m4<B extends core.int>(int x) => null;
-  int Function(int x0, [List<Function> x1]) m5<B extends core.int>(int x) =>
-      null;
-  int Function(int x0, {List<T> x}) m6<B extends core.int>(int x) => null;
-  Function Function(List<Function> x) m7<B extends core.int>(int x) => null;
-  Function Function(int y, [List<T> x]) m8<B extends core.int>(int x) => null;
-  List<Function> Function([Function x0]) m9<B extends core.int>(int x) => null;
-  List<Function> Function({core.List<core.int> x}) m10<B extends core.int>(
-          int x) =>
-      null;
-  core.List<core.int> Function(int y, {int x}) m11<B extends core.int>(int x) =>
-      null;
-  core.List<core.int> Function(int x0, [core.List<core.int> x])
-      m12<B extends core.int>(int x) => null;
-  List<T> Function(int x0) m13<B extends core.int>(int x) => null;
-  List<T> Function(int x, [List<Function> x0]) m14<B extends core.int>(int x) =>
-      null;
-  List<T> Function(int y, {List<T> x}) m15<B extends core.int>(int x) => null;
-  Function([List<Function> x]) m16<B extends core.int>(int x) => null;
-  Function(List<T> x0) m17<B extends core.int>(int x) => null;
-  void Function(int x0, [Function x1]) m18<B extends core.int>(int x) => null;
-  void Function(int x0, {core.List<core.int> x}) m19<B extends core.int>(
-          int x) =>
-      null;
-  Function Function<A>(core.List<core.int> x) m20<B extends core.int>(int x) =>
-      null;
-  List<T> Function<A>(List<T> x) m21<B extends core.int>(int x) => null;
-  List<A> Function<A>() m22<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function([List<Function> x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function([List<Function> x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function([List<Function> x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function(Function x)
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(Function x) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function(Function x));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// List<T> Function()
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    List<T> Function() l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is List<T> Function());
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-    // The static function has its T always set to int.
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isFalse(f2 is F2<bool>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    Expect.isFalse(confuse(f2) is F2<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        x2 = confuse(f2);
-      });
-      Expect.throws(() {
-        l2 = (f2 as dynamic);
-      });
-      Expect.throws(() {
-        l2 = confuse(f2);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m2 is F2<int>);
-      Expect.equals(tIsBool, m2 is F2<bool>);
-      Expect.equals(tIsInt, confuse(m2) is F2<int>);
-      Expect.equals(tIsBool, confuse(m2) is F2<bool>);
-    }
-  }
-
-  /// void Function(int y, {core.List<core.int> x})
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, {core.List<core.int> x}) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int y, {core.List<core.int> x}));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// int Function(int y, [int x]) Function<B extends core.int>(int x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, [int x]) Function<B extends core.int>(int x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(
-        m4 is int Function(int y, [int x]) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x2, [List<Function> x3]) Function<B extends core.int>(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x2, [List<Function> x3]) Function<B extends core.int>(
-        int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x2, [List<Function> x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x1, {List<T> x}) Function<B extends core.int>(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, {List<T> x}) Function<B extends core.int>(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int x1, {List<T> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function(List<Function> x) Function<B extends core.int>(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(List<Function> x) Function<B extends core.int>(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(List<Function> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int y, [List<T> x]) Function<B extends core.int>(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, [List<T> x]) Function<B extends core.int>(int x)
-        l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int y, [List<T> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function([Function x1]) Function<B extends core.int>(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([Function x1]) Function<B extends core.int>(int x)
-        l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function([Function x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function({core.List<core.int> x}) Function<B extends core.int>(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function({core.List<core.int> x})
-        Function<B extends core.int>(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function({core.List<core.int> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(int y, {int x}) Function<B extends core.int>(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, {int x}) Function<B extends core.int>(
-        int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(int y, {int x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x1, [core.List<core.int> x]) Function<B extends core.int>(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, [core.List<core.int> x])
-        Function<B extends core.int>(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x1,
-            [core.List<core.int> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int x1) Function<B extends core.int>(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1) Function<B extends core.int>(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(
-        m13 is List<T> Function(int x1) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x, [List<Function> x1]) Function<B extends core.int>(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x, [List<Function> x1]) Function<B extends core.int>(
-        int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int x, [List<Function> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, {List<T> x}) Function<B extends core.int>(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, {List<T> x}) Function<B extends core.int>(int x)
-        l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int y, {List<T> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function([List<Function> x]) Function<B extends core.int>(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function([List<Function> x]) Function<B extends core.int>(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function([List<Function> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(List<T> x1) Function<B extends core.int>(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(List<T> x1) Function<B extends core.int>(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(
-        m17 is Function(List<T> x1) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(int x2, [Function x3]) Function<B extends core.int>(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x2, [Function x3]) Function<B extends core.int>(int x)
-        l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x2, [Function x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x1, {core.List<core.int> x}) Function<B extends core.int>(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, {core.List<core.int> x}) Function<B extends core.int>(
-        int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int x1, {core.List<core.int> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// Function Function<A>(core.List<core.int> x) Function<B extends core.int>(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(core.List<core.int> x) Function<B extends core.int>(
-        int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is Function Function<A>(core.List<core.int> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(List<T> x) Function<B extends core.int>(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(List<T> x) Function<B extends core.int>(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<T> Function<A>(List<T> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>() Function<B extends core.int>(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>() Function<B extends core.int>(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(
-        m22 is List<A> Function<A>() Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U79().runTests();
-  new U79<int>(tIsInt: true).runTests();
-  new U79<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type7_test.dart b/tests/language_2/function_type/function_type7_test.dart
deleted file mode 100644
index 7c8bf2bf238..00000000000
--- a/tests/language_2/function_type/function_type7_test.dart
+++ /dev/null
@@ -1,988 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int x, [int x2]);
-typedef F1<T> = Function Function(int x, [List<T> x2]);
-typedef F2<T> = core.List<core.int> Function(int x1, [core.List<core.int> x2]);
-typedef F3<T> = Function([List<Function> x1]);
-typedef F4<T> = Function Function<A>(List<A> x);
-typedef F5<T> = int Function(int y, {int x}) Function<B extends core.int>(
-    int x);
-typedef F6<T> = int Function(int x1, [core.List<core.int> x])
-    Function<B extends core.int>(int x);
-typedef F7<T> = Function Function(int x1) Function<B extends core.int>(int x);
-typedef F8<T> = Function Function(int x, [List<Function> x1])
-    Function<B extends core.int>(int x);
-typedef F9<T> = Function Function(int y, {List<T> x})
-    Function<B extends core.int>(int x);
-typedef F10<T> = List<Function> Function([List<Function> x])
-    Function<B extends core.int>(int x);
-typedef F11<T> = List<Function> Function(List<T> x1)
-    Function<B extends core.int>(int x);
-typedef F12<T> = core.List<core.int> Function(int x2, [Function x3])
-    Function<B extends core.int>(int x);
-typedef F13<T> = core.List<core.int> Function(int x1, {core.List<core.int> x})
-    Function<B extends core.int>(int x);
-typedef F14<T> = List<T> Function(Function x) Function<B extends core.int>(
-    int x);
-typedef F15<T> = List<T> Function(int y, [core.List<core.int> x])
-    Function<B extends core.int>(int x);
-typedef F16<T> = Function([int x1]) Function<B extends core.int>(int x);
-typedef F17<T> = Function({List<Function> x}) Function<B extends core.int>(
-    int x);
-typedef F18<T> = Function() Function<B extends core.int>(int x);
-typedef F19<T> = void Function(int x1, [List<Function> x])
-    Function<B extends core.int>(int x);
-typedef F20<T> = void Function([List<T> x1]) Function<B extends core.int>(
-    int x);
-typedef F21<T> = List<Function> Function<A>(List<Function> x)
-    Function<B extends core.int>(int x);
-typedef F22<T> = Function<A>(core.List<core.int> x)
-    Function<B extends core.int>(int x);
-typedef F23<T> = void Function<A>(List<T> x) Function<B extends core.int>(
-    int x);
-
-int f0(int x, [int x0]) => null;
-Function f1(int x, [List<int> x0]) => null;
-core.List<core.int> f2(int x0, [core.List<core.int> x1]) => null;
-f3([List<Function> x0]) => null;
-Function f4<A>(List<A> x) => null;
-int Function(int y, {int x}) f5<B extends core.int>(int x) => null;
-int Function(int x0, [core.List<core.int> x]) f6<B extends core.int>(int x) =>
-    null;
-Function Function(int x0) f7<B extends core.int>(int x) => null;
-Function Function(int x, [List<Function> x0]) f8<B extends core.int>(int x) =>
-    null;
-Function Function(int y, {List<int> x}) f9<B extends core.int>(int x) => null;
-List<Function> Function([List<Function> x]) f10<B extends core.int>(int x) =>
-    null;
-List<Function> Function(List<int> x0) f11<B extends core.int>(int x) => null;
-core.List<core.int> Function(int x0, [Function x1]) f12<B extends core.int>(
-        int x) =>
-    null;
-core.List<core.int> Function(int x0, {core.List<core.int> x})
-    f13<B extends core.int>(int x) => null;
-List<int> Function(Function x) f14<B extends core.int>(int x) => null;
-List<int> Function(int y, [core.List<core.int> x]) f15<B extends core.int>(
-        int x) =>
-    null;
-Function([int x0]) f16<B extends core.int>(int x) => null;
-Function({List<Function> x}) f17<B extends core.int>(int x) => null;
-Function() f18<B extends core.int>(int x) => null;
-void Function(int x0, [List<Function> x]) f19<B extends core.int>(int x) =>
-    null;
-void Function([List<int> x0]) f20<B extends core.int>(int x) => null;
-List<Function> Function<A>(List<Function> x) f21<B extends core.int>(int x) =>
-    null;
-Function<A>(core.List<core.int> x) f22<B extends core.int>(int x) => null;
-void Function<A>(List<int> x) f23<B extends core.int>(int x) => null;
-
-class U7<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int x, [int x2]) x0;
-  Function Function(int x, [List<T> x2]) x1;
-  core.List<core.int> Function(int x1, [core.List<core.int> x2]) x2;
-  Function([List<Function> x1]) x3;
-  Function Function<A>(List<A> x) x4;
-  int Function(int y, {int x}) Function<B extends core.int>(int x) x5;
-  int Function(int x1, [core.List<core.int> x]) Function<B extends core.int>(
-      int x) x6;
-  Function Function(int x1) Function<B extends core.int>(int x) x7;
-  Function Function(int x, [List<Function> x1]) Function<B extends core.int>(
-      int x) x8;
-  Function Function(int y, {List<T> x}) Function<B extends core.int>(int x) x9;
-  List<Function> Function([List<Function> x]) Function<B extends core.int>(
-      int x) x10;
-  List<Function> Function(List<T> x1) Function<B extends core.int>(int x) x11;
-  core.List<core.int> Function(int x2, [Function x3])
-      Function<B extends core.int>(int x) x12;
-  core.List<core.int> Function(int x1, {core.List<core.int> x})
-      Function<B extends core.int>(int x) x13;
-  List<T> Function(Function x) Function<B extends core.int>(int x) x14;
-  List<T> Function(int y, [core.List<core.int> x]) Function<B extends core.int>(
-      int x) x15;
-  Function([int x1]) Function<B extends core.int>(int x) x16;
-  Function({List<Function> x}) Function<B extends core.int>(int x) x17;
-  Function() Function<B extends core.int>(int x) x18;
-  void Function(int x1, [List<Function> x]) Function<B extends core.int>(int x)
-      x19;
-  void Function([List<T> x1]) Function<B extends core.int>(int x) x20;
-  List<Function> Function<A>(List<Function> x) Function<B extends core.int>(
-      int x) x21;
-  Function<A>(core.List<core.int> x) Function<B extends core.int>(int x) x22;
-  void Function<A>(List<T> x) Function<B extends core.int>(int x) x23;
-
-  U7({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int x, [int x0]) => null;
-  Function m1(int x, [List<T> x0]) => null;
-  core.List<core.int> m2(int x0, [core.List<core.int> x1]) => null;
-  m3([List<Function> x0]) => null;
-  Function m4<A>(List<A> x) => null;
-  int Function(int y, {int x}) m5<B extends core.int>(int x) => null;
-  int Function(int x0, [core.List<core.int> x]) m6<B extends core.int>(int x) =>
-      null;
-  Function Function(int x0) m7<B extends core.int>(int x) => null;
-  Function Function(int x, [List<Function> x0]) m8<B extends core.int>(int x) =>
-      null;
-  Function Function(int y, {List<T> x}) m9<B extends core.int>(int x) => null;
-  List<Function> Function([List<Function> x]) m10<B extends core.int>(int x) =>
-      null;
-  List<Function> Function(List<T> x0) m11<B extends core.int>(int x) => null;
-  core.List<core.int> Function(int x0, [Function x1]) m12<B extends core.int>(
-          int x) =>
-      null;
-  core.List<core.int> Function(int x0, {core.List<core.int> x})
-      m13<B extends core.int>(int x) => null;
-  List<T> Function(Function x) m14<B extends core.int>(int x) => null;
-  List<T> Function(int y, [core.List<core.int> x]) m15<B extends core.int>(
-          int x) =>
-      null;
-  Function([int x0]) m16<B extends core.int>(int x) => null;
-  Function({List<Function> x}) m17<B extends core.int>(int x) => null;
-  Function() m18<B extends core.int>(int x) => null;
-  void Function(int x0, [List<Function> x]) m19<B extends core.int>(int x) =>
-      null;
-  void Function([List<T> x0]) m20<B extends core.int>(int x) => null;
-  List<Function> Function<A>(List<Function> x) m21<B extends core.int>(int x) =>
-      null;
-  Function<A>(core.List<core.int> x) m22<B extends core.int>(int x) => null;
-  void Function<A>(List<T> x) m23<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int x, [int x2])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int x, [int x2]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int x, [int x2]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// Function Function(int x, [List<T> x2])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x, [List<T> x2]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is Function Function(int x, [List<T> x2]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-    // The static function has its T always set to int.
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isFalse(f1 is F1<bool>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    Expect.isFalse(confuse(f1) is F1<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        x1 = confuse(f1);
-      });
-      Expect.throws(() {
-        l1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        l1 = confuse(f1);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m1 is F1<int>);
-      Expect.equals(true, m1 is F1<bool>);
-      Expect.equals(true, confuse(m1) is F1<int>);
-      Expect.equals(true, confuse(m1) is F1<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int x1, [core.List<core.int> x2])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, [core.List<core.int> x2]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(
-        m2 is core.List<core.int> Function(int x1, [core.List<core.int> x2]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// Function([List<Function> x1])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function([List<Function> x1]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function([List<Function> x1]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// Function Function<A>(List<A> x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(List<A> x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is Function Function<A>(List<A> x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int y, {int x}) Function<B extends core.int>(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, {int x}) Function<B extends core.int>(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(
-        m5 is int Function(int y, {int x}) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int x1, [core.List<core.int> x]) Function<B extends core.int>(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, [core.List<core.int> x]) Function<B extends core.int>(
-        int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int x1, [core.List<core.int> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int x1) Function<B extends core.int>(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1) Function<B extends core.int>(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(
-        m7 is Function Function(int x1) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x, [List<Function> x1]) Function<B extends core.int>(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x, [List<Function> x1]) Function<B extends core.int>(
-        int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x, [List<Function> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// Function Function(int y, {List<T> x}) Function<B extends core.int>(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, {List<T> x}) Function<B extends core.int>(int x)
-        l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is Function Function(int y, {List<T> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-    // The static function has its T always set to int.
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isFalse(f9 is F9<bool>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    Expect.isFalse(confuse(f9) is F9<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x9 = (f9 as dynamic);
-      });
-      Expect.throws(() {
-        x9 = confuse(f9);
-      });
-      Expect.throws(() {
-        l9 = (f9 as dynamic);
-      });
-      Expect.throws(() {
-        l9 = confuse(f9);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m9 is F9<int>);
-      Expect.equals(tIsBool, m9 is F9<bool>);
-      Expect.equals(tIsInt, confuse(m9) is F9<int>);
-      Expect.equals(tIsBool, confuse(m9) is F9<bool>);
-    }
-  }
-
-  /// List<Function> Function([List<Function> x]) Function<B extends core.int>(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([List<Function> x]) Function<B extends core.int>(
-        int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function([List<Function> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function(List<T> x1) Function<B extends core.int>(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(List<T> x1) Function<B extends core.int>(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is List<Function> Function(List<T> x1)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int x2, [Function x3]) Function<B extends core.int>(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x2, [Function x3])
-        Function<B extends core.int>(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x2, [Function x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int x1, {core.List<core.int> x}) Function<B extends core.int>(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, {core.List<core.int> x})
-        Function<B extends core.int>(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(int x1,
-            {core.List<core.int> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-  }
-
-  /// List<T> Function(Function x) Function<B extends core.int>(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(Function x) Function<B extends core.int>(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(Function x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, [core.List<core.int> x]) Function<B extends core.int>(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, [core.List<core.int> x])
-        Function<B extends core.int>(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(int y, [core.List<core.int> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function([int x1]) Function<B extends core.int>(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function([int x1]) Function<B extends core.int>(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function([int x1]) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function({List<Function> x}) Function<B extends core.int>(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function({List<Function> x}) Function<B extends core.int>(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function({List<Function> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// Function() Function<B extends core.int>(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    Function() Function<B extends core.int>(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is Function() Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x1, [List<Function> x]) Function<B extends core.int>(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, [List<Function> x]) Function<B extends core.int>(
-        int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int x1, [List<Function> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function([List<T> x1]) Function<B extends core.int>(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function([List<T> x1]) Function<B extends core.int>(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(
-        m20 is void Function([List<T> x1]) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(List<Function> x) Function<B extends core.int>(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(List<Function> x) Function<B extends core.int>(
-        int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<Function> Function<A>(List<Function> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// Function<A>(core.List<core.int> x) Function<B extends core.int>(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    Function<A>(core.List<core.int> x) Function<B extends core.int>(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is Function<A>(core.List<core.int> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-
-  /// void Function<A>(List<T> x) Function<B extends core.int>(int x)
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(List<T> x) Function<B extends core.int>(int x) l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(
-        m23 is void Function<A>(List<T> x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-    // The static function has its T always set to int.
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isFalse(f23 is F23<bool>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    Expect.isFalse(confuse(f23) is F23<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x23 = (f23 as dynamic);
-      });
-      Expect.throws(() {
-        x23 = confuse(f23);
-      });
-      Expect.throws(() {
-        l23 = (f23 as dynamic);
-      });
-      Expect.throws(() {
-        l23 = confuse(f23);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m23 is F23<int>);
-      Expect.equals(tIsBool, m23 is F23<bool>);
-      Expect.equals(tIsInt, confuse(m23) is F23<int>);
-      Expect.equals(tIsBool, confuse(m23) is F23<bool>);
-    }
-  }
-}
-
-void main() {
-  new U7().runTests();
-  new U7<int>(tIsInt: true).runTests();
-  new U7<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type80_test.dart b/tests/language_2/function_type/function_type80_test.dart
deleted file mode 100644
index 0527832da31..00000000000
--- a/tests/language_2/function_type/function_type80_test.dart
+++ /dev/null
@@ -1,943 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(int x0, [List<Function> x]);
-typedef F1<T> = core.List<core.int> Function([Function x]);
-typedef F2<T> = Function(int x);
-typedef F3<T> = void Function(List<T> x);
-typedef F4<T> = int Function(int x0) Function();
-typedef F5<T> = int Function(int x, [List<Function> x2]) Function();
-typedef F6<T> = int Function(int y, {List<T> x}) Function();
-typedef F7<T> = Function Function([List<Function> x]) Function();
-typedef F8<T> = Function Function(List<T> x0) Function();
-typedef F9<T> = List<Function> Function(int x1, [Function x2]) Function();
-typedef F10<T> = List<Function> Function(int x0, {core.List<core.int> x})
-    Function();
-typedef F11<T> = core.List<core.int> Function(Function x) Function();
-typedef F12<T> = core.List<core.int> Function(int y, [core.List<core.int> x])
-    Function();
-typedef F13<T> = List<T> Function([int x1]) Function();
-typedef F14<T> = List<T> Function({List<Function> x}) Function();
-typedef F15<T> = List<T> Function() Function();
-typedef F16<T> = Function(int x0, [List<Function> x]) Function();
-typedef F17<T> = Function([List<T> x1]) Function();
-typedef F18<T> = void Function(int x, [Function x2]) Function();
-typedef F19<T> = void Function(int y, {core.List<core.int> x}) Function();
-typedef F20<T> = Function Function<A>(List<T> x) Function();
-typedef F21<T> = List<T> Function<A>() Function();
-typedef F22<T> = List<A> Function<A>(A x) Function();
-
-Function f0(int x0, [List<Function> x]) => null;
-core.List<core.int> f1([Function x]) => null;
-f2(int x) => null;
-void f3(List<int> x) => null;
-int Function(int x0) f4() => null;
-int Function(int x, [List<Function> x0]) f5() => null;
-int Function(int y, {List<int> x}) f6() => null;
-Function Function([List<Function> x]) f7() => null;
-Function Function(List<int> x0) f8() => null;
-List<Function> Function(int x0, [Function x1]) f9() => null;
-List<Function> Function(int x0, {core.List<core.int> x}) f10() => null;
-core.List<core.int> Function(Function x) f11() => null;
-core.List<core.int> Function(int y, [core.List<core.int> x]) f12() => null;
-List<int> Function([int x0]) f13() => null;
-List<int> Function({List<Function> x}) f14() => null;
-List<int> Function() f15() => null;
-Function(int x0, [List<Function> x]) f16() => null;
-Function([List<int> x0]) f17() => null;
-void Function(int x, [Function x0]) f18() => null;
-void Function(int y, {core.List<core.int> x}) f19() => null;
-Function Function<A>(List<int> x) f20() => null;
-List<int> Function<A>() f21() => null;
-List<A> Function<A>(A x) f22() => null;
-
-class U80<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(int x0, [List<Function> x]) x0;
-  core.List<core.int> Function([Function x]) x1;
-  Function(int x) x2;
-  void Function(List<T> x) x3;
-  int Function(int x0) Function() x4;
-  int Function(int x, [List<Function> x2]) Function() x5;
-  int Function(int y, {List<T> x}) Function() x6;
-  Function Function([List<Function> x]) Function() x7;
-  Function Function(List<T> x0) Function() x8;
-  List<Function> Function(int x1, [Function x2]) Function() x9;
-  List<Function> Function(int x0, {core.List<core.int> x}) Function() x10;
-  core.List<core.int> Function(Function x) Function() x11;
-  core.List<core.int> Function(int y, [core.List<core.int> x]) Function() x12;
-  List<T> Function([int x1]) Function() x13;
-  List<T> Function({List<Function> x}) Function() x14;
-  List<T> Function() Function() x15;
-  Function(int x0, [List<Function> x]) Function() x16;
-  Function([List<T> x1]) Function() x17;
-  void Function(int x, [Function x2]) Function() x18;
-  void Function(int y, {core.List<core.int> x}) Function() x19;
-  Function Function<A>(List<T> x) Function() x20;
-  List<T> Function<A>() Function() x21;
-  List<A> Function<A>(A x) Function() x22;
-
-  U80({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(int x0, [List<Function> x]) => null;
-  core.List<core.int> m1([Function x]) => null;
-  m2(int x) => null;
-  void m3(List<T> x) => null;
-  int Function(int x0) m4() => null;
-  int Function(int x, [List<Function> x0]) m5() => null;
-  int Function(int y, {List<T> x}) m6() => null;
-  Function Function([List<Function> x]) m7() => null;
-  Function Function(List<T> x0) m8() => null;
-  List<Function> Function(int x0, [Function x1]) m9() => null;
-  List<Function> Function(int x0, {core.List<core.int> x}) m10() => null;
-  core.List<core.int> Function(Function x) m11() => null;
-  core.List<core.int> Function(int y, [core.List<core.int> x]) m12() => null;
-  List<T> Function([int x0]) m13() => null;
-  List<T> Function({List<Function> x}) m14() => null;
-  List<T> Function() m15() => null;
-  Function(int x0, [List<Function> x]) m16() => null;
-  Function([List<T> x0]) m17() => null;
-  void Function(int x, [Function x0]) m18() => null;
-  void Function(int y, {core.List<core.int> x}) m19() => null;
-  Function Function<A>(List<T> x) m20() => null;
-  List<T> Function<A>() m21() => null;
-  List<A> Function<A>(A x) m22() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(int x0, [List<Function> x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x0, [List<Function> x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(int x0, [List<Function> x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function([Function x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([Function x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function([Function x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// Function(int x)
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    Function(int x) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is Function(int x));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// void Function(List<T> x)
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(List<T> x) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(List<T> x));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-    // The static function has its T always set to int.
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isFalse(f3 is F3<bool>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    Expect.isFalse(confuse(f3) is F3<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        x3 = confuse(f3);
-      });
-      Expect.throws(() {
-        l3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        l3 = confuse(f3);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m3 is F3<int>);
-      Expect.equals(true, m3 is F3<bool>);
-      Expect.equals(true, confuse(m3) is F3<int>);
-      Expect.equals(true, confuse(m3) is F3<bool>);
-    }
-  }
-
-  /// int Function(int x0) Function()
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function(int x0) Function() l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is int Function(int x0) Function());
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x, [List<Function> x2]) Function()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x, [List<Function> x2]) Function() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x, [List<Function> x2]) Function());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int y, {List<T> x}) Function()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, {List<T> x}) Function() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int y, {List<T> x}) Function());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function([List<Function> x]) Function()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function([List<Function> x]) Function() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function([List<Function> x]) Function());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(List<T> x0) Function()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(List<T> x0) Function() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(List<T> x0) Function());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(int x1, [Function x2]) Function()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, [Function x2]) Function() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(
-        m9 is List<Function> Function(int x1, [Function x2]) Function());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x0, {core.List<core.int> x}) Function()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x0, {core.List<core.int> x}) Function() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10
-        is List<Function> Function(int x0, {core.List<core.int> x}) Function());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(Function x) Function()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(Function x) Function() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(Function x) Function());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int y, [core.List<core.int> x]) Function()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, [core.List<core.int> x]) Function() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int y,
-            [core.List<core.int> x])
-        Function());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function([int x1]) Function()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([int x1]) Function() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function([int x1]) Function());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function({List<Function> x}) Function()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function({List<Function> x}) Function() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function({List<Function> x}) Function());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function() Function()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function() Function() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function() Function());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x0, [List<Function> x]) Function()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x0, [List<Function> x]) Function() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x0, [List<Function> x]) Function());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function([List<T> x1]) Function()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function([List<T> x1]) Function() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function([List<T> x1]) Function());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(int x, [Function x2]) Function()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x, [Function x2]) Function() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x, [Function x2]) Function());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int y, {core.List<core.int> x}) Function()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, {core.List<core.int> x}) Function() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(
-        m19 is void Function(int y, {core.List<core.int> x}) Function());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// Function Function<A>(List<T> x) Function()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(List<T> x) Function() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is Function Function<A>(List<T> x) Function());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<T> Function<A>() Function()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>() Function() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<T> Function<A>() Function());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>(A x) Function()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(A x) Function() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is List<A> Function<A>(A x) Function());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U80().runTests();
-  new U80<int>(tIsInt: true).runTests();
-  new U80<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type81_test.dart b/tests/language_2/function_type/function_type81_test.dart
deleted file mode 100644
index 26c7a938424..00000000000
--- a/tests/language_2/function_type/function_type81_test.dart
+++ /dev/null
@@ -1,950 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(int y, [List<Function> x]);
-typedef F1<T> = core.List<core.int> Function(int x0, [Function x]);
-typedef F2<T> = Function([int x]);
-typedef F3<T> = void Function([List<T> x]);
-typedef F4<T> = int Function(int x1) Function(int x);
-typedef F5<T> = int Function(int x, [List<Function> x1]) Function(int x);
-typedef F6<T> = int Function(int y, {List<T> x}) Function(int x);
-typedef F7<T> = Function Function([List<Function> x]) Function(int x);
-typedef F8<T> = Function Function(List<T> x1) Function(int x);
-typedef F9<T> = List<Function> Function(int x2, [Function x3]) Function(int x);
-typedef F10<T> = List<Function> Function(int x1, {core.List<core.int> x})
-    Function(int x);
-typedef F11<T> = core.List<core.int> Function(Function x) Function(int x);
-typedef F12<T> = core.List<core.int> Function(int y, [core.List<core.int> x])
-    Function(int x);
-typedef F13<T> = List<T> Function([int x1]) Function(int x);
-typedef F14<T> = List<T> Function({List<Function> x}) Function(int x);
-typedef F15<T> = List<T> Function() Function(int x);
-typedef F16<T> = Function(int x1, [List<Function> x]) Function(int x);
-typedef F17<T> = Function([List<T> x1]) Function(int x);
-typedef F18<T> = void Function(int x, [Function x1]) Function(int x);
-typedef F19<T> = void Function(int y, {core.List<core.int> x}) Function(int x);
-typedef F20<T> = Function Function<A>(List<T> x) Function(int x);
-typedef F21<T> = List<T> Function<A>() Function(int x);
-typedef F22<T> = List<A> Function<A>(A x) Function(int x);
-
-Function f0(int y, [List<Function> x]) => null;
-core.List<core.int> f1(int x0, [Function x]) => null;
-f2([int x]) => null;
-void f3([List<int> x]) => null;
-int Function(int x0) f4(int x) => null;
-int Function(int x, [List<Function> x0]) f5(int x) => null;
-int Function(int y, {List<int> x}) f6(int x) => null;
-Function Function([List<Function> x]) f7(int x) => null;
-Function Function(List<int> x0) f8(int x) => null;
-List<Function> Function(int x0, [Function x1]) f9(int x) => null;
-List<Function> Function(int x0, {core.List<core.int> x}) f10(int x) => null;
-core.List<core.int> Function(Function x) f11(int x) => null;
-core.List<core.int> Function(int y, [core.List<core.int> x]) f12(int x) => null;
-List<int> Function([int x0]) f13(int x) => null;
-List<int> Function({List<Function> x}) f14(int x) => null;
-List<int> Function() f15(int x) => null;
-Function(int x0, [List<Function> x]) f16(int x) => null;
-Function([List<int> x0]) f17(int x) => null;
-void Function(int x, [Function x0]) f18(int x) => null;
-void Function(int y, {core.List<core.int> x}) f19(int x) => null;
-Function Function<A>(List<int> x) f20(int x) => null;
-List<int> Function<A>() f21(int x) => null;
-List<A> Function<A>(A x) f22(int x) => null;
-
-class U81<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(int y, [List<Function> x]) x0;
-  core.List<core.int> Function(int x0, [Function x]) x1;
-  Function([int x]) x2;
-  void Function([List<T> x]) x3;
-  int Function(int x1) Function(int x) x4;
-  int Function(int x, [List<Function> x1]) Function(int x) x5;
-  int Function(int y, {List<T> x}) Function(int x) x6;
-  Function Function([List<Function> x]) Function(int x) x7;
-  Function Function(List<T> x1) Function(int x) x8;
-  List<Function> Function(int x2, [Function x3]) Function(int x) x9;
-  List<Function> Function(int x1, {core.List<core.int> x}) Function(int x) x10;
-  core.List<core.int> Function(Function x) Function(int x) x11;
-  core.List<core.int> Function(int y, [core.List<core.int> x]) Function(int x)
-      x12;
-  List<T> Function([int x1]) Function(int x) x13;
-  List<T> Function({List<Function> x}) Function(int x) x14;
-  List<T> Function() Function(int x) x15;
-  Function(int x1, [List<Function> x]) Function(int x) x16;
-  Function([List<T> x1]) Function(int x) x17;
-  void Function(int x, [Function x1]) Function(int x) x18;
-  void Function(int y, {core.List<core.int> x}) Function(int x) x19;
-  Function Function<A>(List<T> x) Function(int x) x20;
-  List<T> Function<A>() Function(int x) x21;
-  List<A> Function<A>(A x) Function(int x) x22;
-
-  U81({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(int y, [List<Function> x]) => null;
-  core.List<core.int> m1(int x0, [Function x]) => null;
-  m2([int x]) => null;
-  void m3([List<T> x]) => null;
-  int Function(int x0) m4(int x) => null;
-  int Function(int x, [List<Function> x0]) m5(int x) => null;
-  int Function(int y, {List<T> x}) m6(int x) => null;
-  Function Function([List<Function> x]) m7(int x) => null;
-  Function Function(List<T> x0) m8(int x) => null;
-  List<Function> Function(int x0, [Function x1]) m9(int x) => null;
-  List<Function> Function(int x0, {core.List<core.int> x}) m10(int x) => null;
-  core.List<core.int> Function(Function x) m11(int x) => null;
-  core.List<core.int> Function(int y, [core.List<core.int> x]) m12(int x) =>
-      null;
-  List<T> Function([int x0]) m13(int x) => null;
-  List<T> Function({List<Function> x}) m14(int x) => null;
-  List<T> Function() m15(int x) => null;
-  Function(int x0, [List<Function> x]) m16(int x) => null;
-  Function([List<T> x0]) m17(int x) => null;
-  void Function(int x, [Function x0]) m18(int x) => null;
-  void Function(int y, {core.List<core.int> x}) m19(int x) => null;
-  Function Function<A>(List<T> x) m20(int x) => null;
-  List<T> Function<A>() m21(int x) => null;
-  List<A> Function<A>(A x) m22(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(int y, [List<Function> x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, [List<Function> x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(int y, [List<Function> x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function(int x0, [Function x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x0, [Function x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function(int x0, [Function x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// Function([int x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    Function([int x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is Function([int x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// void Function([List<T> x])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function([List<T> x]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function([List<T> x]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-    // The static function has its T always set to int.
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isFalse(f3 is F3<bool>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    Expect.isFalse(confuse(f3) is F3<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        x3 = confuse(f3);
-      });
-      Expect.throws(() {
-        l3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        l3 = confuse(f3);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m3 is F3<int>);
-      Expect.equals(true, m3 is F3<bool>);
-      Expect.equals(true, confuse(m3) is F3<int>);
-      Expect.equals(true, confuse(m3) is F3<bool>);
-    }
-  }
-
-  /// int Function(int x1) Function(int x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1) Function(int x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is int Function(int x1) Function(int x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x, [List<Function> x1]) Function(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x, [List<Function> x1]) Function(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(
-        m5 is int Function(int x, [List<Function> x1]) Function(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int y, {List<T> x}) Function(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, {List<T> x}) Function(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int y, {List<T> x}) Function(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function([List<Function> x]) Function(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function([List<Function> x]) Function(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function([List<Function> x]) Function(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(List<T> x1) Function(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(List<T> x1) Function(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(List<T> x1) Function(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(int x2, [Function x3]) Function(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x2, [Function x3]) Function(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(
-        m9 is List<Function> Function(int x2, [Function x3]) Function(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x1, {core.List<core.int> x}) Function(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, {core.List<core.int> x}) Function(int x)
-        l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x1,
-            {core.List<core.int> x})
-        Function(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(Function x) Function(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(Function x) Function(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is core.List<core.int> Function(Function x) Function(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int y, [core.List<core.int> x]) Function(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, [core.List<core.int> x]) Function(int x)
-        l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int y,
-            [core.List<core.int> x])
-        Function(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function([int x1]) Function(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([int x1]) Function(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function([int x1]) Function(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function({List<Function> x}) Function(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function({List<Function> x}) Function(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function({List<Function> x}) Function(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function() Function(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function() Function(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function() Function(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x1, [List<Function> x]) Function(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, [List<Function> x]) Function(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x1, [List<Function> x]) Function(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function([List<T> x1]) Function(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function([List<T> x1]) Function(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function([List<T> x1]) Function(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(int x, [Function x1]) Function(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x, [Function x1]) Function(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x, [Function x1]) Function(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int y, {core.List<core.int> x}) Function(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, {core.List<core.int> x}) Function(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(
-        m19 is void Function(int y, {core.List<core.int> x}) Function(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// Function Function<A>(List<T> x) Function(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(List<T> x) Function(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is Function Function<A>(List<T> x) Function(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<T> Function<A>() Function(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>() Function(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<T> Function<A>() Function(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>(A x) Function(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(A x) Function(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is List<A> Function<A>(A x) Function(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U81().runTests();
-  new U81<int>(tIsInt: true).runTests();
-  new U81<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type82_test.dart b/tests/language_2/function_type/function_type82_test.dart
deleted file mode 100644
index ea17429cdfa..00000000000
--- a/tests/language_2/function_type/function_type82_test.dart
+++ /dev/null
@@ -1,977 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(List<Function> x0);
-typedef F1<T> = core.List<core.int> Function(int y, [Function x]);
-typedef F2<T> = Function(int x0, [int x]);
-typedef F3<T> = void Function(int x0, [List<T> x]);
-typedef F4<T> = int Function(int x1) Function<B extends core.int>();
-typedef F5<T> = int Function(int x, [List<Function> x1])
-    Function<B extends core.int>();
-typedef F6<T> = int Function(int y, {List<T> x}) Function<B extends core.int>();
-typedef F7<T> = Function Function([List<Function> x])
-    Function<B extends core.int>();
-typedef F8<T> = Function Function(List<T> x1) Function<B extends core.int>();
-typedef F9<T> = List<Function> Function(int x2, [Function x3])
-    Function<B extends core.int>();
-typedef F10<T> = List<Function> Function(int x1, {core.List<core.int> x})
-    Function<B extends core.int>();
-typedef F11<T> = core.List<core.int> Function(Function x)
-    Function<B extends core.int>();
-typedef F12<T> = core.List<core.int> Function(int y, [core.List<core.int> x])
-    Function<B extends core.int>();
-typedef F13<T> = List<T> Function([int x1]) Function<B extends core.int>();
-typedef F14<T> = List<T> Function({List<Function> x})
-    Function<B extends core.int>();
-typedef F15<T> = List<T> Function() Function<B extends core.int>();
-typedef F16<T> = Function(int x1, [List<Function> x])
-    Function<B extends core.int>();
-typedef F17<T> = Function([List<T> x1]) Function<B extends core.int>();
-typedef F18<T> = void Function(int x, [Function x1])
-    Function<B extends core.int>();
-typedef F19<T> = void Function(int y, {core.List<core.int> x})
-    Function<B extends core.int>();
-typedef F20<T> = Function Function<A>(List<T> x) Function<B extends core.int>();
-typedef F21<T> = List<T> Function<A>() Function<B extends core.int>();
-typedef F22<T> = List<A> Function<A>(A x) Function<B extends core.int>();
-
-Function f0(List<Function> x0) => null;
-core.List<core.int> f1(int y, [Function x]) => null;
-f2(int x0, [int x]) => null;
-void f3(int x0, [List<int> x]) => null;
-int Function(int x0) f4<B extends core.int>() => null;
-int Function(int x, [List<Function> x0]) f5<B extends core.int>() => null;
-int Function(int y, {List<int> x}) f6<B extends core.int>() => null;
-Function Function([List<Function> x]) f7<B extends core.int>() => null;
-Function Function(List<int> x0) f8<B extends core.int>() => null;
-List<Function> Function(int x0, [Function x1]) f9<B extends core.int>() => null;
-List<Function> Function(int x0, {core.List<core.int> x})
-    f10<B extends core.int>() => null;
-core.List<core.int> Function(Function x) f11<B extends core.int>() => null;
-core.List<core.int> Function(int y, [core.List<core.int> x])
-    f12<B extends core.int>() => null;
-List<int> Function([int x0]) f13<B extends core.int>() => null;
-List<int> Function({List<Function> x}) f14<B extends core.int>() => null;
-List<int> Function() f15<B extends core.int>() => null;
-Function(int x0, [List<Function> x]) f16<B extends core.int>() => null;
-Function([List<int> x0]) f17<B extends core.int>() => null;
-void Function(int x, [Function x0]) f18<B extends core.int>() => null;
-void Function(int y, {core.List<core.int> x}) f19<B extends core.int>() => null;
-Function Function<A>(List<int> x) f20<B extends core.int>() => null;
-List<int> Function<A>() f21<B extends core.int>() => null;
-List<A> Function<A>(A x) f22<B extends core.int>() => null;
-
-class U82<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(List<Function> x0) x0;
-  core.List<core.int> Function(int y, [Function x]) x1;
-  Function(int x0, [int x]) x2;
-  void Function(int x0, [List<T> x]) x3;
-  int Function(int x1) Function<B extends core.int>() x4;
-  int Function(int x, [List<Function> x1]) Function<B extends core.int>() x5;
-  int Function(int y, {List<T> x}) Function<B extends core.int>() x6;
-  Function Function([List<Function> x]) Function<B extends core.int>() x7;
-  Function Function(List<T> x1) Function<B extends core.int>() x8;
-  List<Function> Function(int x2, [Function x3]) Function<B extends core.int>()
-      x9;
-  List<Function> Function(int x1, {core.List<core.int> x})
-      Function<B extends core.int>() x10;
-  core.List<core.int> Function(Function x) Function<B extends core.int>() x11;
-  core.List<core.int> Function(int y, [core.List<core.int> x])
-      Function<B extends core.int>() x12;
-  List<T> Function([int x1]) Function<B extends core.int>() x13;
-  List<T> Function({List<Function> x}) Function<B extends core.int>() x14;
-  List<T> Function() Function<B extends core.int>() x15;
-  Function(int x1, [List<Function> x]) Function<B extends core.int>() x16;
-  Function([List<T> x1]) Function<B extends core.int>() x17;
-  void Function(int x, [Function x1]) Function<B extends core.int>() x18;
-  void Function(int y, {core.List<core.int> x}) Function<B extends core.int>()
-      x19;
-  Function Function<A>(List<T> x) Function<B extends core.int>() x20;
-  List<T> Function<A>() Function<B extends core.int>() x21;
-  List<A> Function<A>(A x) Function<B extends core.int>() x22;
-
-  U82({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(List<Function> x0) => null;
-  core.List<core.int> m1(int y, [Function x]) => null;
-  m2(int x0, [int x]) => null;
-  void m3(int x0, [List<T> x]) => null;
-  int Function(int x0) m4<B extends core.int>() => null;
-  int Function(int x, [List<Function> x0]) m5<B extends core.int>() => null;
-  int Function(int y, {List<T> x}) m6<B extends core.int>() => null;
-  Function Function([List<Function> x]) m7<B extends core.int>() => null;
-  Function Function(List<T> x0) m8<B extends core.int>() => null;
-  List<Function> Function(int x0, [Function x1]) m9<B extends core.int>() =>
-      null;
-  List<Function> Function(int x0, {core.List<core.int> x})
-      m10<B extends core.int>() => null;
-  core.List<core.int> Function(Function x) m11<B extends core.int>() => null;
-  core.List<core.int> Function(int y, [core.List<core.int> x])
-      m12<B extends core.int>() => null;
-  List<T> Function([int x0]) m13<B extends core.int>() => null;
-  List<T> Function({List<Function> x}) m14<B extends core.int>() => null;
-  List<T> Function() m15<B extends core.int>() => null;
-  Function(int x0, [List<Function> x]) m16<B extends core.int>() => null;
-  Function([List<T> x0]) m17<B extends core.int>() => null;
-  void Function(int x, [Function x0]) m18<B extends core.int>() => null;
-  void Function(int y, {core.List<core.int> x}) m19<B extends core.int>() =>
-      null;
-  Function Function<A>(List<T> x) m20<B extends core.int>() => null;
-  List<T> Function<A>() m21<B extends core.int>() => null;
-  List<A> Function<A>(A x) m22<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(List<Function> x0)
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(List<Function> x0) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(List<Function> x0));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function(int y, [Function x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, [Function x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function(int y, [Function x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// Function(int x0, [int x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    Function(int x0, [int x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is Function(int x0, [int x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// void Function(int x0, [List<T> x])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int x0, [List<T> x]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int x0, [List<T> x]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-    // The static function has its T always set to int.
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isFalse(f3 is F3<bool>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    Expect.isFalse(confuse(f3) is F3<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        x3 = confuse(f3);
-      });
-      Expect.throws(() {
-        l3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        l3 = confuse(f3);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m3 is F3<int>);
-      Expect.equals(true, m3 is F3<bool>);
-      Expect.equals(true, confuse(m3) is F3<int>);
-      Expect.equals(true, confuse(m3) is F3<bool>);
-    }
-  }
-
-  /// int Function(int x1) Function<B extends core.int>()
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1) Function<B extends core.int>() l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is int Function(int x1) Function<B extends core.int>());
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x, [List<Function> x1]) Function<B extends core.int>()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x, [List<Function> x1]) Function<B extends core.int>() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x, [List<Function> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int y, {List<T> x}) Function<B extends core.int>()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, {List<T> x}) Function<B extends core.int>() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is int Function(int y, {List<T> x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function([List<Function> x]) Function<B extends core.int>()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function([List<Function> x]) Function<B extends core.int>() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function([List<Function> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(List<T> x1) Function<B extends core.int>()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(List<T> x1) Function<B extends core.int>() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(
-        m8 is Function Function(List<T> x1) Function<B extends core.int>());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(int x2, [Function x3]) Function<B extends core.int>()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x2, [Function x3])
-        Function<B extends core.int>() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int x2, [Function x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x1, {core.List<core.int> x}) Function<B extends core.int>()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, {core.List<core.int> x})
-        Function<B extends core.int>() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x1,
-            {core.List<core.int> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(Function x) Function<B extends core.int>()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(Function x) Function<B extends core.int>() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(Function x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int y, [core.List<core.int> x]) Function<B extends core.int>()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, [core.List<core.int> x])
-        Function<B extends core.int>() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int y,
-            [core.List<core.int> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function([int x1]) Function<B extends core.int>()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([int x1]) Function<B extends core.int>() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(
-        m13 is List<T> Function([int x1]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function({List<Function> x}) Function<B extends core.int>()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function({List<Function> x}) Function<B extends core.int>() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function({List<Function> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function() Function<B extends core.int>()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function() Function<B extends core.int>() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function() Function<B extends core.int>());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x1, [List<Function> x]) Function<B extends core.int>()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, [List<Function> x]) Function<B extends core.int>() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x1, [List<Function> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function([List<T> x1]) Function<B extends core.int>()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function([List<T> x1]) Function<B extends core.int>() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function([List<T> x1]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(int x, [Function x1]) Function<B extends core.int>()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x, [Function x1]) Function<B extends core.int>() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x, [Function x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int y, {core.List<core.int> x}) Function<B extends core.int>()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, {core.List<core.int> x}) Function<B extends core.int>()
-        l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int y, {core.List<core.int> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// Function Function<A>(List<T> x) Function<B extends core.int>()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(List<T> x) Function<B extends core.int>() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(
-        m20 is Function Function<A>(List<T> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<T> Function<A>() Function<B extends core.int>()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>() Function<B extends core.int>() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<T> Function<A>() Function<B extends core.int>());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>(A x) Function<B extends core.int>()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(A x) Function<B extends core.int>() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(
-        m22 is List<A> Function<A>(A x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U82().runTests();
-  new U82<int>(tIsInt: true).runTests();
-  new U82<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type83_test.dart b/tests/language_2/function_type/function_type83_test.dart
deleted file mode 100644
index 01b39abc17d..00000000000
--- a/tests/language_2/function_type/function_type83_test.dart
+++ /dev/null
@@ -1,997 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function([List<Function> x1]);
-typedef F1<T> = core.List<core.int> Function(Function x0);
-typedef F2<T> = Function(int y, [int x]);
-typedef F3<T> = void Function(int y, [List<T> x]);
-typedef F4<T> = int Function(int x1) Function<B extends core.int>(int x);
-typedef F5<T> = int Function(int x, [List<Function> x1])
-    Function<B extends core.int>(int x);
-typedef F6<T> = int Function(int y, {List<T> x}) Function<B extends core.int>(
-    int x);
-typedef F7<T> = Function Function([List<Function> x])
-    Function<B extends core.int>(int x);
-typedef F8<T> = Function Function(List<T> x1) Function<B extends core.int>(
-    int x);
-typedef F9<T> = List<Function> Function(int x2, [Function x3])
-    Function<B extends core.int>(int x);
-typedef F10<T> = List<Function> Function(int x1, {core.List<core.int> x})
-    Function<B extends core.int>(int x);
-typedef F11<T> = core.List<core.int> Function(Function x)
-    Function<B extends core.int>(int x);
-typedef F12<T> = core.List<core.int> Function(int y, [core.List<core.int> x])
-    Function<B extends core.int>(int x);
-typedef F13<T> = List<T> Function([int x1]) Function<B extends core.int>(int x);
-typedef F14<T> = List<T> Function({List<Function> x})
-    Function<B extends core.int>(int x);
-typedef F15<T> = List<T> Function() Function<B extends core.int>(int x);
-typedef F16<T> = Function(int x1, [List<Function> x])
-    Function<B extends core.int>(int x);
-typedef F17<T> = Function([List<T> x1]) Function<B extends core.int>(int x);
-typedef F18<T> = void Function(int x, [Function x1])
-    Function<B extends core.int>(int x);
-typedef F19<T> = void Function(int y, {core.List<core.int> x})
-    Function<B extends core.int>(int x);
-typedef F20<T> = Function Function<A>(List<T> x) Function<B extends core.int>(
-    int x);
-typedef F21<T> = List<T> Function<A>() Function<B extends core.int>(int x);
-typedef F22<T> = List<A> Function<A>(A x) Function<B extends core.int>(int x);
-
-Function f0([List<Function> x0]) => null;
-core.List<core.int> f1(Function x0) => null;
-f2(int y, [int x]) => null;
-void f3(int y, [List<int> x]) => null;
-int Function(int x0) f4<B extends core.int>(int x) => null;
-int Function(int x, [List<Function> x0]) f5<B extends core.int>(int x) => null;
-int Function(int y, {List<int> x}) f6<B extends core.int>(int x) => null;
-Function Function([List<Function> x]) f7<B extends core.int>(int x) => null;
-Function Function(List<int> x0) f8<B extends core.int>(int x) => null;
-List<Function> Function(int x0, [Function x1]) f9<B extends core.int>(int x) =>
-    null;
-List<Function> Function(int x0, {core.List<core.int> x})
-    f10<B extends core.int>(int x) => null;
-core.List<core.int> Function(Function x) f11<B extends core.int>(int x) => null;
-core.List<core.int> Function(int y, [core.List<core.int> x])
-    f12<B extends core.int>(int x) => null;
-List<int> Function([int x0]) f13<B extends core.int>(int x) => null;
-List<int> Function({List<Function> x}) f14<B extends core.int>(int x) => null;
-List<int> Function() f15<B extends core.int>(int x) => null;
-Function(int x0, [List<Function> x]) f16<B extends core.int>(int x) => null;
-Function([List<int> x0]) f17<B extends core.int>(int x) => null;
-void Function(int x, [Function x0]) f18<B extends core.int>(int x) => null;
-void Function(int y, {core.List<core.int> x}) f19<B extends core.int>(int x) =>
-    null;
-Function Function<A>(List<int> x) f20<B extends core.int>(int x) => null;
-List<int> Function<A>() f21<B extends core.int>(int x) => null;
-List<A> Function<A>(A x) f22<B extends core.int>(int x) => null;
-
-class U83<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function([List<Function> x1]) x0;
-  core.List<core.int> Function(Function x0) x1;
-  Function(int y, [int x]) x2;
-  void Function(int y, [List<T> x]) x3;
-  int Function(int x1) Function<B extends core.int>(int x) x4;
-  int Function(int x, [List<Function> x1]) Function<B extends core.int>(int x)
-      x5;
-  int Function(int y, {List<T> x}) Function<B extends core.int>(int x) x6;
-  Function Function([List<Function> x]) Function<B extends core.int>(int x) x7;
-  Function Function(List<T> x1) Function<B extends core.int>(int x) x8;
-  List<Function> Function(int x2, [Function x3]) Function<B extends core.int>(
-      int x) x9;
-  List<Function> Function(int x1, {core.List<core.int> x})
-      Function<B extends core.int>(int x) x10;
-  core.List<core.int> Function(Function x) Function<B extends core.int>(int x)
-      x11;
-  core.List<core.int> Function(int y, [core.List<core.int> x])
-      Function<B extends core.int>(int x) x12;
-  List<T> Function([int x1]) Function<B extends core.int>(int x) x13;
-  List<T> Function({List<Function> x}) Function<B extends core.int>(int x) x14;
-  List<T> Function() Function<B extends core.int>(int x) x15;
-  Function(int x1, [List<Function> x]) Function<B extends core.int>(int x) x16;
-  Function([List<T> x1]) Function<B extends core.int>(int x) x17;
-  void Function(int x, [Function x1]) Function<B extends core.int>(int x) x18;
-  void Function(int y, {core.List<core.int> x}) Function<B extends core.int>(
-      int x) x19;
-  Function Function<A>(List<T> x) Function<B extends core.int>(int x) x20;
-  List<T> Function<A>() Function<B extends core.int>(int x) x21;
-  List<A> Function<A>(A x) Function<B extends core.int>(int x) x22;
-
-  U83({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0([List<Function> x0]) => null;
-  core.List<core.int> m1(Function x0) => null;
-  m2(int y, [int x]) => null;
-  void m3(int y, [List<T> x]) => null;
-  int Function(int x0) m4<B extends core.int>(int x) => null;
-  int Function(int x, [List<Function> x0]) m5<B extends core.int>(int x) =>
-      null;
-  int Function(int y, {List<T> x}) m6<B extends core.int>(int x) => null;
-  Function Function([List<Function> x]) m7<B extends core.int>(int x) => null;
-  Function Function(List<T> x0) m8<B extends core.int>(int x) => null;
-  List<Function> Function(int x0, [Function x1]) m9<B extends core.int>(
-          int x) =>
-      null;
-  List<Function> Function(int x0, {core.List<core.int> x})
-      m10<B extends core.int>(int x) => null;
-  core.List<core.int> Function(Function x) m11<B extends core.int>(int x) =>
-      null;
-  core.List<core.int> Function(int y, [core.List<core.int> x])
-      m12<B extends core.int>(int x) => null;
-  List<T> Function([int x0]) m13<B extends core.int>(int x) => null;
-  List<T> Function({List<Function> x}) m14<B extends core.int>(int x) => null;
-  List<T> Function() m15<B extends core.int>(int x) => null;
-  Function(int x0, [List<Function> x]) m16<B extends core.int>(int x) => null;
-  Function([List<T> x0]) m17<B extends core.int>(int x) => null;
-  void Function(int x, [Function x0]) m18<B extends core.int>(int x) => null;
-  void Function(int y, {core.List<core.int> x}) m19<B extends core.int>(
-          int x) =>
-      null;
-  Function Function<A>(List<T> x) m20<B extends core.int>(int x) => null;
-  List<T> Function<A>() m21<B extends core.int>(int x) => null;
-  List<A> Function<A>(A x) m22<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function([List<Function> x1])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function([List<Function> x1]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function([List<Function> x1]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function(Function x0)
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(Function x0) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function(Function x0));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// Function(int y, [int x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    Function(int y, [int x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is Function(int y, [int x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// void Function(int y, [List<T> x])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, [List<T> x]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int y, [List<T> x]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-    // The static function has its T always set to int.
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isFalse(f3 is F3<bool>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    Expect.isFalse(confuse(f3) is F3<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        x3 = confuse(f3);
-      });
-      Expect.throws(() {
-        l3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        l3 = confuse(f3);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m3 is F3<int>);
-      Expect.equals(true, m3 is F3<bool>);
-      Expect.equals(true, confuse(m3) is F3<int>);
-      Expect.equals(true, confuse(m3) is F3<bool>);
-    }
-  }
-
-  /// int Function(int x1) Function<B extends core.int>(int x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1) Function<B extends core.int>(int x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(
-        m4 is int Function(int x1) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x, [List<Function> x1]) Function<B extends core.int>(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x, [List<Function> x1]) Function<B extends core.int>(int x)
-        l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x, [List<Function> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int y, {List<T> x}) Function<B extends core.int>(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, {List<T> x}) Function<B extends core.int>(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function(int y, {List<T> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-    // The static function has its T always set to int.
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isFalse(f6 is F6<bool>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    Expect.isFalse(confuse(f6) is F6<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        x6 = confuse(f6);
-      });
-      Expect.throws(() {
-        l6 = (f6 as dynamic);
-      });
-      Expect.throws(() {
-        l6 = confuse(f6);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m6 is F6<int>);
-      Expect.equals(tIsBool, m6 is F6<bool>);
-      Expect.equals(tIsInt, confuse(m6) is F6<int>);
-      Expect.equals(tIsBool, confuse(m6) is F6<bool>);
-    }
-  }
-
-  /// Function Function([List<Function> x]) Function<B extends core.int>(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function([List<Function> x]) Function<B extends core.int>(int x)
-        l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function([List<Function> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(List<T> x1) Function<B extends core.int>(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(List<T> x1) Function<B extends core.int>(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(List<T> x1)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(int x2, [Function x3]) Function<B extends core.int>(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x2, [Function x3]) Function<B extends core.int>(
-        int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int x2, [Function x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x1, {core.List<core.int> x}) Function<B extends core.int>(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, {core.List<core.int> x})
-        Function<B extends core.int>(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x1,
-            {core.List<core.int> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function(Function x) Function<B extends core.int>(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(Function x) Function<B extends core.int>(int x)
-        l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(Function x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int y, [core.List<core.int> x]) Function<B extends core.int>(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, [core.List<core.int> x])
-        Function<B extends core.int>(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int y,
-            [core.List<core.int> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function([int x1]) Function<B extends core.int>(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([int x1]) Function<B extends core.int>(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(
-        m13 is List<T> Function([int x1]) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function({List<Function> x}) Function<B extends core.int>(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function({List<Function> x}) Function<B extends core.int>(int x)
-        l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function({List<Function> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function() Function<B extends core.int>(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function() Function<B extends core.int>(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(
-        m15 is List<T> Function() Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x1, [List<Function> x]) Function<B extends core.int>(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, [List<Function> x]) Function<B extends core.int>(int x)
-        l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x1, [List<Function> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function([List<T> x1]) Function<B extends core.int>(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function([List<T> x1]) Function<B extends core.int>(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(
-        m17 is Function([List<T> x1]) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(int x, [Function x1]) Function<B extends core.int>(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x, [Function x1]) Function<B extends core.int>(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x, [Function x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int y, {core.List<core.int> x}) Function<B extends core.int>(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, {core.List<core.int> x}) Function<B extends core.int>(
-        int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int y, {core.List<core.int> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// Function Function<A>(List<T> x) Function<B extends core.int>(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(List<T> x) Function<B extends core.int>(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is Function Function<A>(List<T> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<T> Function<A>() Function<B extends core.int>(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>() Function<B extends core.int>(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(
-        m21 is List<T> Function<A>() Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>(A x) Function<B extends core.int>(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(A x) Function<B extends core.int>(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(
-        m22 is List<A> Function<A>(A x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U83().runTests();
-  new U83<int>(tIsInt: true).runTests();
-  new U83<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type84_test.dart b/tests/language_2/function_type/function_type84_test.dart
deleted file mode 100644
index 6db3eb6b091..00000000000
--- a/tests/language_2/function_type/function_type84_test.dart
+++ /dev/null
@@ -1,893 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(int x1, [List<Function> x2]);
-typedef F1<T> = core.List<core.int> Function([Function x1]);
-typedef F2<T> = Function(int x0);
-typedef F3<T> = void Function(List<T> x0);
-typedef F4<T> = int Function([int x1]) Function();
-typedef F5<T> = int Function({List<Function> x}) Function();
-typedef F6<T> = int Function() Function();
-typedef F7<T> = Function Function(int x0, [List<Function> x]) Function();
-typedef F8<T> = Function Function([List<T> x1]) Function();
-typedef F9<T> = List<Function> Function(int x, [Function x2]) Function();
-typedef F10<T> = List<Function> Function(int y, {core.List<core.int> x})
-    Function();
-typedef F11<T> = core.List<core.int> Function([Function x]) Function();
-typedef F12<T> = core.List<core.int> Function(core.List<core.int> x0)
-    Function();
-typedef F13<T> = List<T> Function(int x1, [int x2]) Function();
-typedef F14<T> = List<T> Function(int x0, {List<Function> x}) Function();
-typedef F15<T> = Function(int x) Function();
-typedef F16<T> = Function(int y, [List<Function> x]) Function();
-typedef F17<T> = Function(int x1, [List<T> x2]) Function();
-typedef F18<T> = void Function({Function x}) Function();
-typedef F19<T> = void Function(List<T> x) Function();
-typedef F20<T> = Function Function<A>() Function();
-typedef F21<T> = List<T> Function<A>(A x) Function();
-typedef F22<T> = List<A> Function<A>(List<A> x) Function();
-
-Function f0(int x0, [List<Function> x1]) => null;
-core.List<core.int> f1([Function x0]) => null;
-f2(int x0) => null;
-void f3(List<int> x0) => null;
-int Function([int x0]) f4() => null;
-int Function({List<Function> x}) f5() => null;
-int Function() f6() => null;
-Function Function(int x0, [List<Function> x]) f7() => null;
-Function Function([List<int> x0]) f8() => null;
-List<Function> Function(int x, [Function x0]) f9() => null;
-List<Function> Function(int y, {core.List<core.int> x}) f10() => null;
-core.List<core.int> Function([Function x]) f11() => null;
-core.List<core.int> Function(core.List<core.int> x0) f12() => null;
-List<int> Function(int x0, [int x1]) f13() => null;
-List<int> Function(int x0, {List<Function> x}) f14() => null;
-Function(int x) f15() => null;
-Function(int y, [List<Function> x]) f16() => null;
-Function(int x0, [List<int> x1]) f17() => null;
-void Function({Function x}) f18() => null;
-void Function(List<int> x) f19() => null;
-Function Function<A>() f20() => null;
-List<int> Function<A>(A x) f21() => null;
-List<A> Function<A>(List<A> x) f22() => null;
-
-class U84<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(int x1, [List<Function> x2]) x0;
-  core.List<core.int> Function([Function x1]) x1;
-  Function(int x0) x2;
-  void Function(List<T> x0) x3;
-  int Function([int x1]) Function() x4;
-  int Function({List<Function> x}) Function() x5;
-  int Function() Function() x6;
-  Function Function(int x0, [List<Function> x]) Function() x7;
-  Function Function([List<T> x1]) Function() x8;
-  List<Function> Function(int x, [Function x2]) Function() x9;
-  List<Function> Function(int y, {core.List<core.int> x}) Function() x10;
-  core.List<core.int> Function([Function x]) Function() x11;
-  core.List<core.int> Function(core.List<core.int> x0) Function() x12;
-  List<T> Function(int x1, [int x2]) Function() x13;
-  List<T> Function(int x0, {List<Function> x}) Function() x14;
-  Function(int x) Function() x15;
-  Function(int y, [List<Function> x]) Function() x16;
-  Function(int x1, [List<T> x2]) Function() x17;
-  void Function({Function x}) Function() x18;
-  void Function(List<T> x) Function() x19;
-  Function Function<A>() Function() x20;
-  List<T> Function<A>(A x) Function() x21;
-  List<A> Function<A>(List<A> x) Function() x22;
-
-  U84({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(int x0, [List<Function> x1]) => null;
-  core.List<core.int> m1([Function x0]) => null;
-  m2(int x0) => null;
-  void m3(List<T> x0) => null;
-  int Function([int x0]) m4() => null;
-  int Function({List<Function> x}) m5() => null;
-  int Function() m6() => null;
-  Function Function(int x0, [List<Function> x]) m7() => null;
-  Function Function([List<T> x0]) m8() => null;
-  List<Function> Function(int x, [Function x0]) m9() => null;
-  List<Function> Function(int y, {core.List<core.int> x}) m10() => null;
-  core.List<core.int> Function([Function x]) m11() => null;
-  core.List<core.int> Function(core.List<core.int> x0) m12() => null;
-  List<T> Function(int x0, [int x1]) m13() => null;
-  List<T> Function(int x0, {List<Function> x}) m14() => null;
-  Function(int x) m15() => null;
-  Function(int y, [List<Function> x]) m16() => null;
-  Function(int x0, [List<T> x1]) m17() => null;
-  void Function({Function x}) m18() => null;
-  void Function(List<T> x) m19() => null;
-  Function Function<A>() m20() => null;
-  List<T> Function<A>(A x) m21() => null;
-  List<A> Function<A>(List<A> x) m22() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(int x1, [List<Function> x2])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, [List<Function> x2]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(int x1, [List<Function> x2]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function([Function x1])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([Function x1]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function([Function x1]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// Function(int x0)
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    Function(int x0) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is Function(int x0));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// void Function(List<T> x0)
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(List<T> x0) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(List<T> x0));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-    // The static function has its T always set to int.
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isFalse(f3 is F3<bool>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    Expect.isFalse(confuse(f3) is F3<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        x3 = confuse(f3);
-      });
-      Expect.throws(() {
-        l3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        l3 = confuse(f3);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m3 is F3<int>);
-      Expect.equals(true, m3 is F3<bool>);
-      Expect.equals(true, confuse(m3) is F3<int>);
-      Expect.equals(true, confuse(m3) is F3<bool>);
-    }
-  }
-
-  /// int Function([int x1]) Function()
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function([int x1]) Function() l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is int Function([int x1]) Function());
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function({List<Function> x}) Function()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function({List<Function> x}) Function() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function({List<Function> x}) Function());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function() Function()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function() Function() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function() Function());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int x0, [List<Function> x]) Function()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x0, [List<Function> x]) Function() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(
-        m7 is Function Function(int x0, [List<Function> x]) Function());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function([List<T> x1]) Function()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function([List<T> x1]) Function() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function([List<T> x1]) Function());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(int x, [Function x2]) Function()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x, [Function x2]) Function() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(
-        m9 is List<Function> Function(int x, [Function x2]) Function());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int y, {core.List<core.int> x}) Function()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, {core.List<core.int> x}) Function() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int y, {core.List<core.int> x})
-        Function());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function([Function x]) Function()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([Function x]) Function() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function([Function x]) Function());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(core.List<core.int> x0) Function()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(core.List<core.int> x0) Function() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(
-        m12 is core.List<core.int> Function(core.List<core.int> x0) Function());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int x1, [int x2]) Function()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, [int x2]) Function() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function(int x1, [int x2]) Function());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x0, {List<Function> x}) Function()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x0, {List<Function> x}) Function() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(
-        m14 is List<T> Function(int x0, {List<Function> x}) Function());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// Function(int x) Function()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    Function(int x) Function() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is Function(int x) Function());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-  }
-
-  /// Function(int y, [List<Function> x]) Function()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int y, [List<Function> x]) Function() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int y, [List<Function> x]) Function());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x1, [List<T> x2]) Function()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, [List<T> x2]) Function() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x1, [List<T> x2]) Function());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function({Function x}) Function()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function({Function x}) Function() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function({Function x}) Function());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(List<T> x) Function()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(List<T> x) Function() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(List<T> x) Function());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-    // The static function has its T always set to int.
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isFalse(f19 is F19<bool>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    Expect.isFalse(confuse(f19) is F19<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        x19 = confuse(f19);
-      });
-      Expect.throws(() {
-        l19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        l19 = confuse(f19);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m19 is F19<int>);
-      Expect.equals(tIsBool, m19 is F19<bool>);
-      Expect.equals(tIsInt, confuse(m19) is F19<int>);
-      Expect.equals(tIsBool, confuse(m19) is F19<bool>);
-    }
-  }
-
-  /// Function Function<A>() Function()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>() Function() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is Function Function<A>() Function());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(A x) Function()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(A x) Function() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<T> Function<A>(A x) Function());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>(List<A> x) Function()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(List<A> x) Function() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is List<A> Function<A>(List<A> x) Function());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U84().runTests();
-  new U84<int>(tIsInt: true).runTests();
-  new U84<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type85_test.dart b/tests/language_2/function_type/function_type85_test.dart
deleted file mode 100644
index d60125700f4..00000000000
--- a/tests/language_2/function_type/function_type85_test.dart
+++ /dev/null
@@ -1,894 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(int x, [List<Function> x2]);
-typedef F1<T> = core.List<core.int> Function(int x1, [Function x2]);
-typedef F2<T> = Function([int x1]);
-typedef F3<T> = void Function([List<T> x1]);
-typedef F4<T> = int Function([int x1]) Function(int x);
-typedef F5<T> = int Function({List<Function> x}) Function(int x);
-typedef F6<T> = int Function() Function(int x);
-typedef F7<T> = Function Function(int x1, [List<Function> x]) Function(int x);
-typedef F8<T> = Function Function([List<T> x1]) Function(int x);
-typedef F9<T> = List<Function> Function(int x, [Function x1]) Function(int x);
-typedef F10<T> = List<Function> Function(int y, {core.List<core.int> x})
-    Function(int x);
-typedef F11<T> = core.List<core.int> Function([Function x]) Function(int x);
-typedef F12<T> = core.List<core.int> Function(core.List<core.int> x1) Function(
-    int x);
-typedef F13<T> = List<T> Function(int x2, [int x3]) Function(int x);
-typedef F14<T> = List<T> Function(int x1, {List<Function> x}) Function(int x);
-typedef F15<T> = Function(int x) Function(int x);
-typedef F16<T> = Function(int y, [List<Function> x]) Function(int x);
-typedef F17<T> = Function(int x2, [List<T> x3]) Function(int x);
-typedef F18<T> = void Function({Function x}) Function(int x);
-typedef F19<T> = void Function(List<T> x) Function(int x);
-typedef F20<T> = Function Function<A>() Function(int x);
-typedef F21<T> = List<T> Function<A>(A x) Function(int x);
-typedef F22<T> = List<A> Function<A>(List<A> x) Function(int x);
-
-Function f0(int x, [List<Function> x0]) => null;
-core.List<core.int> f1(int x0, [Function x1]) => null;
-f2([int x0]) => null;
-void f3([List<int> x0]) => null;
-int Function([int x0]) f4(int x) => null;
-int Function({List<Function> x}) f5(int x) => null;
-int Function() f6(int x) => null;
-Function Function(int x0, [List<Function> x]) f7(int x) => null;
-Function Function([List<int> x0]) f8(int x) => null;
-List<Function> Function(int x, [Function x0]) f9(int x) => null;
-List<Function> Function(int y, {core.List<core.int> x}) f10(int x) => null;
-core.List<core.int> Function([Function x]) f11(int x) => null;
-core.List<core.int> Function(core.List<core.int> x0) f12(int x) => null;
-List<int> Function(int x0, [int x1]) f13(int x) => null;
-List<int> Function(int x0, {List<Function> x}) f14(int x) => null;
-Function(int x) f15(int x) => null;
-Function(int y, [List<Function> x]) f16(int x) => null;
-Function(int x0, [List<int> x1]) f17(int x) => null;
-void Function({Function x}) f18(int x) => null;
-void Function(List<int> x) f19(int x) => null;
-Function Function<A>() f20(int x) => null;
-List<int> Function<A>(A x) f21(int x) => null;
-List<A> Function<A>(List<A> x) f22(int x) => null;
-
-class U85<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(int x, [List<Function> x2]) x0;
-  core.List<core.int> Function(int x1, [Function x2]) x1;
-  Function([int x1]) x2;
-  void Function([List<T> x1]) x3;
-  int Function([int x1]) Function(int x) x4;
-  int Function({List<Function> x}) Function(int x) x5;
-  int Function() Function(int x) x6;
-  Function Function(int x1, [List<Function> x]) Function(int x) x7;
-  Function Function([List<T> x1]) Function(int x) x8;
-  List<Function> Function(int x, [Function x1]) Function(int x) x9;
-  List<Function> Function(int y, {core.List<core.int> x}) Function(int x) x10;
-  core.List<core.int> Function([Function x]) Function(int x) x11;
-  core.List<core.int> Function(core.List<core.int> x1) Function(int x) x12;
-  List<T> Function(int x2, [int x3]) Function(int x) x13;
-  List<T> Function(int x1, {List<Function> x}) Function(int x) x14;
-  Function(int x) Function(int x) x15;
-  Function(int y, [List<Function> x]) Function(int x) x16;
-  Function(int x2, [List<T> x3]) Function(int x) x17;
-  void Function({Function x}) Function(int x) x18;
-  void Function(List<T> x) Function(int x) x19;
-  Function Function<A>() Function(int x) x20;
-  List<T> Function<A>(A x) Function(int x) x21;
-  List<A> Function<A>(List<A> x) Function(int x) x22;
-
-  U85({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(int x, [List<Function> x0]) => null;
-  core.List<core.int> m1(int x0, [Function x1]) => null;
-  m2([int x0]) => null;
-  void m3([List<T> x0]) => null;
-  int Function([int x0]) m4(int x) => null;
-  int Function({List<Function> x}) m5(int x) => null;
-  int Function() m6(int x) => null;
-  Function Function(int x0, [List<Function> x]) m7(int x) => null;
-  Function Function([List<T> x0]) m8(int x) => null;
-  List<Function> Function(int x, [Function x0]) m9(int x) => null;
-  List<Function> Function(int y, {core.List<core.int> x}) m10(int x) => null;
-  core.List<core.int> Function([Function x]) m11(int x) => null;
-  core.List<core.int> Function(core.List<core.int> x0) m12(int x) => null;
-  List<T> Function(int x0, [int x1]) m13(int x) => null;
-  List<T> Function(int x0, {List<Function> x}) m14(int x) => null;
-  Function(int x) m15(int x) => null;
-  Function(int y, [List<Function> x]) m16(int x) => null;
-  Function(int x0, [List<T> x1]) m17(int x) => null;
-  void Function({Function x}) m18(int x) => null;
-  void Function(List<T> x) m19(int x) => null;
-  Function Function<A>() m20(int x) => null;
-  List<T> Function<A>(A x) m21(int x) => null;
-  List<A> Function<A>(List<A> x) m22(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(int x, [List<Function> x2])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x, [List<Function> x2]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(int x, [List<Function> x2]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function(int x1, [Function x2])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, [Function x2]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function(int x1, [Function x2]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// Function([int x1])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    Function([int x1]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is Function([int x1]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// void Function([List<T> x1])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function([List<T> x1]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function([List<T> x1]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-    // The static function has its T always set to int.
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isFalse(f3 is F3<bool>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    Expect.isFalse(confuse(f3) is F3<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        x3 = confuse(f3);
-      });
-      Expect.throws(() {
-        l3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        l3 = confuse(f3);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m3 is F3<int>);
-      Expect.equals(true, m3 is F3<bool>);
-      Expect.equals(true, confuse(m3) is F3<int>);
-      Expect.equals(true, confuse(m3) is F3<bool>);
-    }
-  }
-
-  /// int Function([int x1]) Function(int x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function([int x1]) Function(int x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is int Function([int x1]) Function(int x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function({List<Function> x}) Function(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function({List<Function> x}) Function(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function({List<Function> x}) Function(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function() Function(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function() Function(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function() Function(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int x1, [List<Function> x]) Function(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, [List<Function> x]) Function(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(
-        m7 is Function Function(int x1, [List<Function> x]) Function(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function([List<T> x1]) Function(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function([List<T> x1]) Function(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function([List<T> x1]) Function(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(int x, [Function x1]) Function(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x, [Function x1]) Function(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(
-        m9 is List<Function> Function(int x, [Function x1]) Function(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int y, {core.List<core.int> x}) Function(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, {core.List<core.int> x}) Function(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int y, {core.List<core.int> x})
-        Function(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function([Function x]) Function(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([Function x]) Function(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is core.List<core.int> Function([Function x]) Function(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(core.List<core.int> x1) Function(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(core.List<core.int> x1) Function(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(core.List<core.int> x1)
-        Function(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int x2, [int x3]) Function(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x2, [int x3]) Function(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function(int x2, [int x3]) Function(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x1, {List<Function> x}) Function(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, {List<Function> x}) Function(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(
-        m14 is List<T> Function(int x1, {List<Function> x}) Function(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// Function(int x) Function(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    Function(int x) Function(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is Function(int x) Function(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-  }
-
-  /// Function(int y, [List<Function> x]) Function(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int y, [List<Function> x]) Function(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int y, [List<Function> x]) Function(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x2, [List<T> x3]) Function(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x2, [List<T> x3]) Function(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x2, [List<T> x3]) Function(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function({Function x}) Function(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function({Function x}) Function(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function({Function x}) Function(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(List<T> x) Function(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(List<T> x) Function(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(List<T> x) Function(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-    // The static function has its T always set to int.
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isFalse(f19 is F19<bool>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    Expect.isFalse(confuse(f19) is F19<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        x19 = confuse(f19);
-      });
-      Expect.throws(() {
-        l19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        l19 = confuse(f19);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m19 is F19<int>);
-      Expect.equals(tIsBool, m19 is F19<bool>);
-      Expect.equals(tIsInt, confuse(m19) is F19<int>);
-      Expect.equals(tIsBool, confuse(m19) is F19<bool>);
-    }
-  }
-
-  /// Function Function<A>() Function(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>() Function(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is Function Function<A>() Function(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(A x) Function(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(A x) Function(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<T> Function<A>(A x) Function(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>(List<A> x) Function(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(List<A> x) Function(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is List<A> Function<A>(List<A> x) Function(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U85().runTests();
-  new U85<int>(tIsInt: true).runTests();
-  new U85<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type86_test.dart b/tests/language_2/function_type/function_type86_test.dart
deleted file mode 100644
index 12c841c1e7e..00000000000
--- a/tests/language_2/function_type/function_type86_test.dart
+++ /dev/null
@@ -1,928 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function({List<Function> x});
-typedef F1<T> = core.List<core.int> Function(int x, [Function x2]);
-typedef F2<T> = Function(int x1, [int x2]);
-typedef F3<T> = void Function(int x1, [List<T> x2]);
-typedef F4<T> = int Function([int x1]) Function<B extends core.int>();
-typedef F5<T> = int Function({List<Function> x}) Function<B extends core.int>();
-typedef F6<T> = int Function() Function<B extends core.int>();
-typedef F7<T> = Function Function(int x1, [List<Function> x])
-    Function<B extends core.int>();
-typedef F8<T> = Function Function([List<T> x1]) Function<B extends core.int>();
-typedef F9<T> = List<Function> Function(int x, [Function x1])
-    Function<B extends core.int>();
-typedef F10<T> = List<Function> Function(int y, {core.List<core.int> x})
-    Function<B extends core.int>();
-typedef F11<T> = core.List<core.int> Function([Function x])
-    Function<B extends core.int>();
-typedef F12<T> = core.List<core.int> Function(core.List<core.int> x1)
-    Function<B extends core.int>();
-typedef F13<T> = List<T> Function(int x2, [int x3])
-    Function<B extends core.int>();
-typedef F14<T> = List<T> Function(int x1, {List<Function> x})
-    Function<B extends core.int>();
-typedef F15<T> = Function(int x) Function<B extends core.int>();
-typedef F16<T> = Function(int y, [List<Function> x])
-    Function<B extends core.int>();
-typedef F17<T> = Function(int x2, [List<T> x3]) Function<B extends core.int>();
-typedef F18<T> = void Function({Function x}) Function<B extends core.int>();
-typedef F19<T> = void Function(List<T> x) Function<B extends core.int>();
-typedef F20<T> = Function Function<A>() Function<B extends core.int>();
-typedef F21<T> = List<T> Function<A>(A x) Function<B extends core.int>();
-typedef F22<T> = List<A> Function<A>(List<A> x) Function<B extends core.int>();
-
-Function f0({List<Function> x}) => null;
-core.List<core.int> f1(int x, [Function x0]) => null;
-f2(int x0, [int x1]) => null;
-void f3(int x0, [List<int> x1]) => null;
-int Function([int x0]) f4<B extends core.int>() => null;
-int Function({List<Function> x}) f5<B extends core.int>() => null;
-int Function() f6<B extends core.int>() => null;
-Function Function(int x0, [List<Function> x]) f7<B extends core.int>() => null;
-Function Function([List<int> x0]) f8<B extends core.int>() => null;
-List<Function> Function(int x, [Function x0]) f9<B extends core.int>() => null;
-List<Function> Function(int y, {core.List<core.int> x})
-    f10<B extends core.int>() => null;
-core.List<core.int> Function([Function x]) f11<B extends core.int>() => null;
-core.List<core.int> Function(core.List<core.int> x0)
-    f12<B extends core.int>() => null;
-List<int> Function(int x0, [int x1]) f13<B extends core.int>() => null;
-List<int> Function(int x0, {List<Function> x}) f14<B extends core.int>() =>
-    null;
-Function(int x) f15<B extends core.int>() => null;
-Function(int y, [List<Function> x]) f16<B extends core.int>() => null;
-Function(int x0, [List<int> x1]) f17<B extends core.int>() => null;
-void Function({Function x}) f18<B extends core.int>() => null;
-void Function(List<int> x) f19<B extends core.int>() => null;
-Function Function<A>() f20<B extends core.int>() => null;
-List<int> Function<A>(A x) f21<B extends core.int>() => null;
-List<A> Function<A>(List<A> x) f22<B extends core.int>() => null;
-
-class U86<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function({List<Function> x}) x0;
-  core.List<core.int> Function(int x, [Function x2]) x1;
-  Function(int x1, [int x2]) x2;
-  void Function(int x1, [List<T> x2]) x3;
-  int Function([int x1]) Function<B extends core.int>() x4;
-  int Function({List<Function> x}) Function<B extends core.int>() x5;
-  int Function() Function<B extends core.int>() x6;
-  Function Function(int x1, [List<Function> x]) Function<B extends core.int>()
-      x7;
-  Function Function([List<T> x1]) Function<B extends core.int>() x8;
-  List<Function> Function(int x, [Function x1]) Function<B extends core.int>()
-      x9;
-  List<Function> Function(int y, {core.List<core.int> x})
-      Function<B extends core.int>() x10;
-  core.List<core.int> Function([Function x]) Function<B extends core.int>() x11;
-  core.List<core.int> Function(core.List<core.int> x1)
-      Function<B extends core.int>() x12;
-  List<T> Function(int x2, [int x3]) Function<B extends core.int>() x13;
-  List<T> Function(int x1, {List<Function> x}) Function<B extends core.int>()
-      x14;
-  Function(int x) Function<B extends core.int>() x15;
-  Function(int y, [List<Function> x]) Function<B extends core.int>() x16;
-  Function(int x2, [List<T> x3]) Function<B extends core.int>() x17;
-  void Function({Function x}) Function<B extends core.int>() x18;
-  void Function(List<T> x) Function<B extends core.int>() x19;
-  Function Function<A>() Function<B extends core.int>() x20;
-  List<T> Function<A>(A x) Function<B extends core.int>() x21;
-  List<A> Function<A>(List<A> x) Function<B extends core.int>() x22;
-
-  U86({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0({List<Function> x}) => null;
-  core.List<core.int> m1(int x, [Function x0]) => null;
-  m2(int x0, [int x1]) => null;
-  void m3(int x0, [List<T> x1]) => null;
-  int Function([int x0]) m4<B extends core.int>() => null;
-  int Function({List<Function> x}) m5<B extends core.int>() => null;
-  int Function() m6<B extends core.int>() => null;
-  Function Function(int x0, [List<Function> x]) m7<B extends core.int>() =>
-      null;
-  Function Function([List<T> x0]) m8<B extends core.int>() => null;
-  List<Function> Function(int x, [Function x0]) m9<B extends core.int>() =>
-      null;
-  List<Function> Function(int y, {core.List<core.int> x})
-      m10<B extends core.int>() => null;
-  core.List<core.int> Function([Function x]) m11<B extends core.int>() => null;
-  core.List<core.int> Function(core.List<core.int> x0)
-      m12<B extends core.int>() => null;
-  List<T> Function(int x0, [int x1]) m13<B extends core.int>() => null;
-  List<T> Function(int x0, {List<Function> x}) m14<B extends core.int>() =>
-      null;
-  Function(int x) m15<B extends core.int>() => null;
-  Function(int y, [List<Function> x]) m16<B extends core.int>() => null;
-  Function(int x0, [List<T> x1]) m17<B extends core.int>() => null;
-  void Function({Function x}) m18<B extends core.int>() => null;
-  void Function(List<T> x) m19<B extends core.int>() => null;
-  Function Function<A>() m20<B extends core.int>() => null;
-  List<T> Function<A>(A x) m21<B extends core.int>() => null;
-  List<A> Function<A>(List<A> x) m22<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function({List<Function> x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function({List<Function> x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function({List<Function> x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function(int x, [Function x2])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x, [Function x2]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function(int x, [Function x2]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// Function(int x1, [int x2])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, [int x2]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is Function(int x1, [int x2]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// void Function(int x1, [List<T> x2])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, [List<T> x2]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int x1, [List<T> x2]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-    // The static function has its T always set to int.
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isFalse(f3 is F3<bool>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    Expect.isFalse(confuse(f3) is F3<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        x3 = confuse(f3);
-      });
-      Expect.throws(() {
-        l3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        l3 = confuse(f3);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m3 is F3<int>);
-      Expect.equals(true, m3 is F3<bool>);
-      Expect.equals(true, confuse(m3) is F3<int>);
-      Expect.equals(true, confuse(m3) is F3<bool>);
-    }
-  }
-
-  /// int Function([int x1]) Function<B extends core.int>()
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function([int x1]) Function<B extends core.int>() l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is int Function([int x1]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function({List<Function> x}) Function<B extends core.int>()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function({List<Function> x}) Function<B extends core.int>() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(
-        m5 is int Function({List<Function> x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function() Function<B extends core.int>()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function() Function<B extends core.int>() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function() Function<B extends core.int>());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int x1, [List<Function> x]) Function<B extends core.int>()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, [List<Function> x]) Function<B extends core.int>()
-        l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x1, [List<Function> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function([List<T> x1]) Function<B extends core.int>()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function([List<T> x1]) Function<B extends core.int>() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(
-        m8 is Function Function([List<T> x1]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(int x, [Function x1]) Function<B extends core.int>()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x, [Function x1]) Function<B extends core.int>()
-        l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int x, [Function x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int y, {core.List<core.int> x}) Function<B extends core.int>()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, {core.List<core.int> x})
-        Function<B extends core.int>() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int y, {core.List<core.int> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function([Function x]) Function<B extends core.int>()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([Function x]) Function<B extends core.int>()
-        l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function([Function x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(core.List<core.int> x1) Function<B extends core.int>()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(core.List<core.int> x1)
-        Function<B extends core.int>() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(core.List<core.int> x1)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int x2, [int x3]) Function<B extends core.int>()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x2, [int x3]) Function<B extends core.int>() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function(int x2, [int x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x1, {List<Function> x}) Function<B extends core.int>()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, {List<Function> x}) Function<B extends core.int>()
-        l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int x1, {List<Function> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// Function(int x) Function<B extends core.int>()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    Function(int x) Function<B extends core.int>() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is Function(int x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-  }
-
-  /// Function(int y, [List<Function> x]) Function<B extends core.int>()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int y, [List<Function> x]) Function<B extends core.int>() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int y, [List<Function> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x2, [List<T> x3]) Function<B extends core.int>()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x2, [List<T> x3]) Function<B extends core.int>() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(
-        m17 is Function(int x2, [List<T> x3]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function({Function x}) Function<B extends core.int>()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function({Function x}) Function<B extends core.int>() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(
-        m18 is void Function({Function x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(List<T> x) Function<B extends core.int>()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(List<T> x) Function<B extends core.int>() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(
-        m19 is void Function(List<T> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-    // The static function has its T always set to int.
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isFalse(f19 is F19<bool>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    Expect.isFalse(confuse(f19) is F19<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        x19 = confuse(f19);
-      });
-      Expect.throws(() {
-        l19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        l19 = confuse(f19);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m19 is F19<int>);
-      Expect.equals(tIsBool, m19 is F19<bool>);
-      Expect.equals(tIsInt, confuse(m19) is F19<int>);
-      Expect.equals(tIsBool, confuse(m19) is F19<bool>);
-    }
-  }
-
-  /// Function Function<A>() Function<B extends core.int>()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>() Function<B extends core.int>() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is Function Function<A>() Function<B extends core.int>());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(A x) Function<B extends core.int>()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(A x) Function<B extends core.int>() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(
-        m21 is List<T> Function<A>(A x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>(List<A> x) Function<B extends core.int>()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(List<A> x) Function<B extends core.int>() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(
-        m22 is List<A> Function<A>(List<A> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U86().runTests();
-  new U86<int>(tIsInt: true).runTests();
-  new U86<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type87_test.dart b/tests/language_2/function_type/function_type87_test.dart
deleted file mode 100644
index f597bf5f946..00000000000
--- a/tests/language_2/function_type/function_type87_test.dart
+++ /dev/null
@@ -1,943 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(int x0, {List<Function> x});
-typedef F1<T> = core.List<core.int> Function({Function x});
-typedef F2<T> = Function(int x, [int x2]);
-typedef F3<T> = void Function(int x, [List<T> x2]);
-typedef F4<T> = int Function([int x1]) Function<B extends core.int>(int x);
-typedef F5<T> = int Function({List<Function> x}) Function<B extends core.int>(
-    int x);
-typedef F6<T> = int Function() Function<B extends core.int>(int x);
-typedef F7<T> = Function Function(int x1, [List<Function> x])
-    Function<B extends core.int>(int x);
-typedef F8<T> = Function Function([List<T> x1]) Function<B extends core.int>(
-    int x);
-typedef F9<T> = List<Function> Function(int x, [Function x1])
-    Function<B extends core.int>(int x);
-typedef F10<T> = List<Function> Function(int y, {core.List<core.int> x})
-    Function<B extends core.int>(int x);
-typedef F11<T> = core.List<core.int> Function([Function x])
-    Function<B extends core.int>(int x);
-typedef F12<T> = core.List<core.int> Function(core.List<core.int> x1)
-    Function<B extends core.int>(int x);
-typedef F13<T> = List<T> Function(int x2, [int x3])
-    Function<B extends core.int>(int x);
-typedef F14<T> = List<T> Function(int x1, {List<Function> x})
-    Function<B extends core.int>(int x);
-typedef F15<T> = Function(int x) Function<B extends core.int>(int x);
-typedef F16<T> = Function(int y, [List<Function> x])
-    Function<B extends core.int>(int x);
-typedef F17<T> = Function(int x2, [List<T> x3]) Function<B extends core.int>(
-    int x);
-typedef F18<T> = void Function({Function x}) Function<B extends core.int>(
-    int x);
-typedef F19<T> = void Function(List<T> x) Function<B extends core.int>(int x);
-typedef F20<T> = Function Function<A>() Function<B extends core.int>(int x);
-typedef F21<T> = List<T> Function<A>(A x) Function<B extends core.int>(int x);
-typedef F22<T> = List<A> Function<A>(List<A> x) Function<B extends core.int>(
-    int x);
-
-Function f0(int x0, {List<Function> x}) => null;
-core.List<core.int> f1({Function x}) => null;
-f2(int x, [int x0]) => null;
-void f3(int x, [List<int> x0]) => null;
-int Function([int x0]) f4<B extends core.int>(int x) => null;
-int Function({List<Function> x}) f5<B extends core.int>(int x) => null;
-int Function() f6<B extends core.int>(int x) => null;
-Function Function(int x0, [List<Function> x]) f7<B extends core.int>(int x) =>
-    null;
-Function Function([List<int> x0]) f8<B extends core.int>(int x) => null;
-List<Function> Function(int x, [Function x0]) f9<B extends core.int>(int x) =>
-    null;
-List<Function> Function(int y, {core.List<core.int> x}) f10<B extends core.int>(
-        int x) =>
-    null;
-core.List<core.int> Function([Function x]) f11<B extends core.int>(int x) =>
-    null;
-core.List<core.int> Function(core.List<core.int> x0) f12<B extends core.int>(
-        int x) =>
-    null;
-List<int> Function(int x0, [int x1]) f13<B extends core.int>(int x) => null;
-List<int> Function(int x0, {List<Function> x}) f14<B extends core.int>(int x) =>
-    null;
-Function(int x) f15<B extends core.int>(int x) => null;
-Function(int y, [List<Function> x]) f16<B extends core.int>(int x) => null;
-Function(int x0, [List<int> x1]) f17<B extends core.int>(int x) => null;
-void Function({Function x}) f18<B extends core.int>(int x) => null;
-void Function(List<int> x) f19<B extends core.int>(int x) => null;
-Function Function<A>() f20<B extends core.int>(int x) => null;
-List<int> Function<A>(A x) f21<B extends core.int>(int x) => null;
-List<A> Function<A>(List<A> x) f22<B extends core.int>(int x) => null;
-
-class U87<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(int x0, {List<Function> x}) x0;
-  core.List<core.int> Function({Function x}) x1;
-  Function(int x, [int x2]) x2;
-  void Function(int x, [List<T> x2]) x3;
-  int Function([int x1]) Function<B extends core.int>(int x) x4;
-  int Function({List<Function> x}) Function<B extends core.int>(int x) x5;
-  int Function() Function<B extends core.int>(int x) x6;
-  Function Function(int x1, [List<Function> x]) Function<B extends core.int>(
-      int x) x7;
-  Function Function([List<T> x1]) Function<B extends core.int>(int x) x8;
-  List<Function> Function(int x, [Function x1]) Function<B extends core.int>(
-      int x) x9;
-  List<Function> Function(int y, {core.List<core.int> x})
-      Function<B extends core.int>(int x) x10;
-  core.List<core.int> Function([Function x]) Function<B extends core.int>(int x)
-      x11;
-  core.List<core.int> Function(core.List<core.int> x1)
-      Function<B extends core.int>(int x) x12;
-  List<T> Function(int x2, [int x3]) Function<B extends core.int>(int x) x13;
-  List<T> Function(int x1, {List<Function> x}) Function<B extends core.int>(
-      int x) x14;
-  Function(int x) Function<B extends core.int>(int x) x15;
-  Function(int y, [List<Function> x]) Function<B extends core.int>(int x) x16;
-  Function(int x2, [List<T> x3]) Function<B extends core.int>(int x) x17;
-  void Function({Function x}) Function<B extends core.int>(int x) x18;
-  void Function(List<T> x) Function<B extends core.int>(int x) x19;
-  Function Function<A>() Function<B extends core.int>(int x) x20;
-  List<T> Function<A>(A x) Function<B extends core.int>(int x) x21;
-  List<A> Function<A>(List<A> x) Function<B extends core.int>(int x) x22;
-
-  U87({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(int x0, {List<Function> x}) => null;
-  core.List<core.int> m1({Function x}) => null;
-  m2(int x, [int x0]) => null;
-  void m3(int x, [List<T> x0]) => null;
-  int Function([int x0]) m4<B extends core.int>(int x) => null;
-  int Function({List<Function> x}) m5<B extends core.int>(int x) => null;
-  int Function() m6<B extends core.int>(int x) => null;
-  Function Function(int x0, [List<Function> x]) m7<B extends core.int>(int x) =>
-      null;
-  Function Function([List<T> x0]) m8<B extends core.int>(int x) => null;
-  List<Function> Function(int x, [Function x0]) m9<B extends core.int>(int x) =>
-      null;
-  List<Function> Function(int y, {core.List<core.int> x})
-      m10<B extends core.int>(int x) => null;
-  core.List<core.int> Function([Function x]) m11<B extends core.int>(int x) =>
-      null;
-  core.List<core.int> Function(core.List<core.int> x0) m12<B extends core.int>(
-          int x) =>
-      null;
-  List<T> Function(int x0, [int x1]) m13<B extends core.int>(int x) => null;
-  List<T> Function(int x0, {List<Function> x}) m14<B extends core.int>(int x) =>
-      null;
-  Function(int x) m15<B extends core.int>(int x) => null;
-  Function(int y, [List<Function> x]) m16<B extends core.int>(int x) => null;
-  Function(int x0, [List<T> x1]) m17<B extends core.int>(int x) => null;
-  void Function({Function x}) m18<B extends core.int>(int x) => null;
-  void Function(List<T> x) m19<B extends core.int>(int x) => null;
-  Function Function<A>() m20<B extends core.int>(int x) => null;
-  List<T> Function<A>(A x) m21<B extends core.int>(int x) => null;
-  List<A> Function<A>(List<A> x) m22<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(int x0, {List<Function> x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x0, {List<Function> x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(int x0, {List<Function> x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function({Function x})
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function({Function x}) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function({Function x}));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// Function(int x, [int x2])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    Function(int x, [int x2]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is Function(int x, [int x2]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// void Function(int x, [List<T> x2])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int x, [List<T> x2]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int x, [List<T> x2]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-    // The static function has its T always set to int.
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isFalse(f3 is F3<bool>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    Expect.isFalse(confuse(f3) is F3<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        x3 = confuse(f3);
-      });
-      Expect.throws(() {
-        l3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        l3 = confuse(f3);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m3 is F3<int>);
-      Expect.equals(true, m3 is F3<bool>);
-      Expect.equals(true, confuse(m3) is F3<int>);
-      Expect.equals(true, confuse(m3) is F3<bool>);
-    }
-  }
-
-  /// int Function([int x1]) Function<B extends core.int>(int x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function([int x1]) Function<B extends core.int>(int x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(
-        m4 is int Function([int x1]) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function({List<Function> x}) Function<B extends core.int>(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function({List<Function> x}) Function<B extends core.int>(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function({List<Function> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function() Function<B extends core.int>(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function() Function<B extends core.int>(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is int Function() Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int x1, [List<Function> x]) Function<B extends core.int>(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, [List<Function> x]) Function<B extends core.int>(
-        int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int x1, [List<Function> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function([List<T> x1]) Function<B extends core.int>(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function([List<T> x1]) Function<B extends core.int>(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function([List<T> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(int x, [Function x1]) Function<B extends core.int>(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x, [Function x1]) Function<B extends core.int>(
-        int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int x, [Function x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int y, {core.List<core.int> x}) Function<B extends core.int>(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, {core.List<core.int> x})
-        Function<B extends core.int>(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int y, {core.List<core.int> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// core.List<core.int> Function([Function x]) Function<B extends core.int>(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([Function x]) Function<B extends core.int>(
-        int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function([Function x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(core.List<core.int> x1) Function<B extends core.int>(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(core.List<core.int> x1)
-        Function<B extends core.int>(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(core.List<core.int> x1)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int x2, [int x3]) Function<B extends core.int>(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x2, [int x3]) Function<B extends core.int>(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function(int x2, [int x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int x1, {List<Function> x}) Function<B extends core.int>(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, {List<Function> x}) Function<B extends core.int>(
-        int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int x1, {List<Function> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// Function(int x) Function<B extends core.int>(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    Function(int x) Function<B extends core.int>(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is Function(int x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-  }
-
-  /// Function(int y, [List<Function> x]) Function<B extends core.int>(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int y, [List<Function> x]) Function<B extends core.int>(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int y, [List<Function> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x2, [List<T> x3]) Function<B extends core.int>(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x2, [List<T> x3]) Function<B extends core.int>(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x2, [List<T> x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function({Function x}) Function<B extends core.int>(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function({Function x}) Function<B extends core.int>(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(
-        m18 is void Function({Function x}) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(List<T> x) Function<B extends core.int>(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(List<T> x) Function<B extends core.int>(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(
-        m19 is void Function(List<T> x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-    // The static function has its T always set to int.
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isFalse(f19 is F19<bool>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    Expect.isFalse(confuse(f19) is F19<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        x19 = confuse(f19);
-      });
-      Expect.throws(() {
-        l19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        l19 = confuse(f19);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m19 is F19<int>);
-      Expect.equals(tIsBool, m19 is F19<bool>);
-      Expect.equals(tIsInt, confuse(m19) is F19<int>);
-      Expect.equals(tIsBool, confuse(m19) is F19<bool>);
-    }
-  }
-
-  /// Function Function<A>() Function<B extends core.int>(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>() Function<B extends core.int>(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(
-        m20 is Function Function<A>() Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(A x) Function<B extends core.int>(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(A x) Function<B extends core.int>(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(
-        m21 is List<T> Function<A>(A x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// List<A> Function<A>(List<A> x) Function<B extends core.int>(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    List<A> Function<A>(List<A> x) Function<B extends core.int>(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is List<A> Function<A>(List<A> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U87().runTests();
-  new U87<int>(tIsInt: true).runTests();
-  new U87<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type88_test.dart b/tests/language_2/function_type/function_type88_test.dart
deleted file mode 100644
index f855e7d1d29..00000000000
--- a/tests/language_2/function_type/function_type88_test.dart
+++ /dev/null
@@ -1,916 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(int y, {List<Function> x});
-typedef F1<T> = core.List<core.int> Function(int x0, {Function x});
-typedef F2<T> = Function({int x});
-typedef F3<T> = void Function({List<T> x});
-typedef F4<T> = int Function(int x1, [int x2]) Function();
-typedef F5<T> = int Function(int x0, {List<Function> x}) Function();
-typedef F6<T> = Function Function(int x) Function();
-typedef F7<T> = Function Function(int y, [List<Function> x]) Function();
-typedef F8<T> = Function Function(int x1, [List<T> x2]) Function();
-typedef F9<T> = List<Function> Function({Function x}) Function();
-typedef F10<T> = List<Function> Function(List<T> x) Function();
-typedef F11<T> = core.List<core.int> Function(int x0, [Function x]) Function();
-typedef F12<T> = core.List<core.int> Function([core.List<core.int> x1])
-    Function();
-typedef F13<T> = List<T> Function(int x, [int x2]) Function();
-typedef F14<T> = List<T> Function(int y, {List<Function> x}) Function();
-typedef F15<T> = Function([int x]) Function();
-typedef F16<T> = Function(List<Function> x0) Function();
-typedef F17<T> = Function(int x, [List<T> x2]) Function();
-typedef F18<T> = void Function(int x0, {Function x}) Function();
-typedef F19<T> = void Function([List<T> x]) Function();
-typedef F20<T> = Function Function<A>(A x) Function();
-typedef F21<T> = List<T> Function<A>(List<A> x) Function();
-typedef F22<T> = void Function<A>(int x) Function();
-
-Function f0(int y, {List<Function> x}) => null;
-core.List<core.int> f1(int x0, {Function x}) => null;
-f2({int x}) => null;
-void f3({List<int> x}) => null;
-int Function(int x0, [int x1]) f4() => null;
-int Function(int x0, {List<Function> x}) f5() => null;
-Function Function(int x) f6() => null;
-Function Function(int y, [List<Function> x]) f7() => null;
-Function Function(int x0, [List<int> x1]) f8() => null;
-List<Function> Function({Function x}) f9() => null;
-List<Function> Function(List<int> x) f10() => null;
-core.List<core.int> Function(int x0, [Function x]) f11() => null;
-core.List<core.int> Function([core.List<core.int> x0]) f12() => null;
-List<int> Function(int x, [int x0]) f13() => null;
-List<int> Function(int y, {List<Function> x}) f14() => null;
-Function([int x]) f15() => null;
-Function(List<Function> x0) f16() => null;
-Function(int x, [List<int> x0]) f17() => null;
-void Function(int x0, {Function x}) f18() => null;
-void Function([List<int> x]) f19() => null;
-Function Function<A>(A x) f20() => null;
-List<int> Function<A>(List<A> x) f21() => null;
-void Function<A>(int x) f22() => null;
-
-class U88<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(int y, {List<Function> x}) x0;
-  core.List<core.int> Function(int x0, {Function x}) x1;
-  Function({int x}) x2;
-  void Function({List<T> x}) x3;
-  int Function(int x1, [int x2]) Function() x4;
-  int Function(int x0, {List<Function> x}) Function() x5;
-  Function Function(int x) Function() x6;
-  Function Function(int y, [List<Function> x]) Function() x7;
-  Function Function(int x1, [List<T> x2]) Function() x8;
-  List<Function> Function({Function x}) Function() x9;
-  List<Function> Function(List<T> x) Function() x10;
-  core.List<core.int> Function(int x0, [Function x]) Function() x11;
-  core.List<core.int> Function([core.List<core.int> x1]) Function() x12;
-  List<T> Function(int x, [int x2]) Function() x13;
-  List<T> Function(int y, {List<Function> x}) Function() x14;
-  Function([int x]) Function() x15;
-  Function(List<Function> x0) Function() x16;
-  Function(int x, [List<T> x2]) Function() x17;
-  void Function(int x0, {Function x}) Function() x18;
-  void Function([List<T> x]) Function() x19;
-  Function Function<A>(A x) Function() x20;
-  List<T> Function<A>(List<A> x) Function() x21;
-  void Function<A>(int x) Function() x22;
-
-  U88({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(int y, {List<Function> x}) => null;
-  core.List<core.int> m1(int x0, {Function x}) => null;
-  m2({int x}) => null;
-  void m3({List<T> x}) => null;
-  int Function(int x0, [int x1]) m4() => null;
-  int Function(int x0, {List<Function> x}) m5() => null;
-  Function Function(int x) m6() => null;
-  Function Function(int y, [List<Function> x]) m7() => null;
-  Function Function(int x0, [List<T> x1]) m8() => null;
-  List<Function> Function({Function x}) m9() => null;
-  List<Function> Function(List<T> x) m10() => null;
-  core.List<core.int> Function(int x0, [Function x]) m11() => null;
-  core.List<core.int> Function([core.List<core.int> x0]) m12() => null;
-  List<T> Function(int x, [int x0]) m13() => null;
-  List<T> Function(int y, {List<Function> x}) m14() => null;
-  Function([int x]) m15() => null;
-  Function(List<Function> x0) m16() => null;
-  Function(int x, [List<T> x0]) m17() => null;
-  void Function(int x0, {Function x}) m18() => null;
-  void Function([List<T> x]) m19() => null;
-  Function Function<A>(A x) m20() => null;
-  List<T> Function<A>(List<A> x) m21() => null;
-  void Function<A>(int x) m22() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(int y, {List<Function> x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, {List<Function> x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(int y, {List<Function> x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function(int x0, {Function x})
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x0, {Function x}) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function(int x0, {Function x}));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// Function({int x})
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    Function({int x}) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is Function({int x}));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// void Function({List<T> x})
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function({List<T> x}) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function({List<T> x}));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-    // The static function has its T always set to int.
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isFalse(f3 is F3<bool>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    Expect.isFalse(confuse(f3) is F3<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        x3 = confuse(f3);
-      });
-      Expect.throws(() {
-        l3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        l3 = confuse(f3);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m3 is F3<int>);
-      Expect.equals(true, m3 is F3<bool>);
-      Expect.equals(true, confuse(m3) is F3<int>);
-      Expect.equals(true, confuse(m3) is F3<bool>);
-    }
-  }
-
-  /// int Function(int x1, [int x2]) Function()
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, [int x2]) Function() l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is int Function(int x1, [int x2]) Function());
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x0, {List<Function> x}) Function()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x0, {List<Function> x}) Function() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x0, {List<Function> x}) Function());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// Function Function(int x) Function()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x) Function() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is Function Function(int x) Function());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int y, [List<Function> x]) Function()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, [List<Function> x]) Function() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(
-        m7 is Function Function(int y, [List<Function> x]) Function());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x1, [List<T> x2]) Function()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, [List<T> x2]) Function() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x1, [List<T> x2]) Function());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function({Function x}) Function()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function({Function x}) Function() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function({Function x}) Function());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(List<T> x) Function()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(List<T> x) Function() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(List<T> x) Function());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-    // The static function has its T always set to int.
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isFalse(f10 is F10<bool>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    Expect.isFalse(confuse(f10) is F10<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x10 = (f10 as dynamic);
-      });
-      Expect.throws(() {
-        x10 = confuse(f10);
-      });
-      Expect.throws(() {
-        l10 = (f10 as dynamic);
-      });
-      Expect.throws(() {
-        l10 = confuse(f10);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m10 is F10<int>);
-      Expect.equals(tIsBool, m10 is F10<bool>);
-      Expect.equals(tIsInt, confuse(m10) is F10<int>);
-      Expect.equals(tIsBool, confuse(m10) is F10<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int x0, [Function x]) Function()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x0, [Function x]) Function() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is core.List<core.int> Function(int x0, [Function x]) Function());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function([core.List<core.int> x1]) Function()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([core.List<core.int> x1]) Function() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function([core.List<core.int> x1])
-        Function());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int x, [int x2]) Function()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x, [int x2]) Function() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function(int x, [int x2]) Function());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, {List<Function> x}) Function()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, {List<Function> x}) Function() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(
-        m14 is List<T> Function(int y, {List<Function> x}) Function());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// Function([int x]) Function()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    Function([int x]) Function() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is Function([int x]) Function());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-  }
-
-  /// Function(List<Function> x0) Function()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(List<Function> x0) Function() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(List<Function> x0) Function());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x, [List<T> x2]) Function()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x, [List<T> x2]) Function() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x, [List<T> x2]) Function());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(int x0, {Function x}) Function()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x0, {Function x}) Function() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x0, {Function x}) Function());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function([List<T> x]) Function()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function([List<T> x]) Function() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function([List<T> x]) Function());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-    // The static function has its T always set to int.
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isFalse(f19 is F19<bool>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    Expect.isFalse(confuse(f19) is F19<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        x19 = confuse(f19);
-      });
-      Expect.throws(() {
-        l19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        l19 = confuse(f19);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m19 is F19<int>);
-      Expect.equals(tIsBool, m19 is F19<bool>);
-      Expect.equals(tIsInt, confuse(m19) is F19<int>);
-      Expect.equals(tIsBool, confuse(m19) is F19<bool>);
-    }
-  }
-
-  /// Function Function<A>(A x) Function()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(A x) Function() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is Function Function<A>(A x) Function());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(List<A> x) Function()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(List<A> x) Function() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<T> Function<A>(List<A> x) Function());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// void Function<A>(int x) Function()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(int x) Function() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is void Function<A>(int x) Function());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U88().runTests();
-  new U88<int>(tIsInt: true).runTests();
-  new U88<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type89_test.dart b/tests/language_2/function_type/function_type89_test.dart
deleted file mode 100644
index 1a4d3b02f8d..00000000000
--- a/tests/language_2/function_type/function_type89_test.dart
+++ /dev/null
@@ -1,919 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(core.List<core.int> x);
-typedef F1<T> = core.List<core.int> Function(int y, {Function x});
-typedef F2<T> = Function(int x0, {int x});
-typedef F3<T> = void Function(int x0, {List<T> x});
-typedef F4<T> = int Function(int x2, [int x3]) Function(int x);
-typedef F5<T> = int Function(int x1, {List<Function> x}) Function(int x);
-typedef F6<T> = Function Function(int x) Function(int x);
-typedef F7<T> = Function Function(int y, [List<Function> x]) Function(int x);
-typedef F8<T> = Function Function(int x2, [List<T> x3]) Function(int x);
-typedef F9<T> = List<Function> Function({Function x}) Function(int x);
-typedef F10<T> = List<Function> Function(List<T> x) Function(int x);
-typedef F11<T> = core.List<core.int> Function(int x1, [Function x]) Function(
-    int x);
-typedef F12<T> = core.List<core.int> Function([core.List<core.int> x1])
-    Function(int x);
-typedef F13<T> = List<T> Function(int x, [int x1]) Function(int x);
-typedef F14<T> = List<T> Function(int y, {List<Function> x}) Function(int x);
-typedef F15<T> = Function([int x]) Function(int x);
-typedef F16<T> = Function(List<Function> x1) Function(int x);
-typedef F17<T> = Function(int x, [List<T> x1]) Function(int x);
-typedef F18<T> = void Function(int x1, {Function x}) Function(int x);
-typedef F19<T> = void Function([List<T> x]) Function(int x);
-typedef F20<T> = Function Function<A>(A x) Function(int x);
-typedef F21<T> = List<T> Function<A>(List<A> x) Function(int x);
-typedef F22<T> = void Function<A>(int x) Function(int x);
-
-Function f0(core.List<core.int> x) => null;
-core.List<core.int> f1(int y, {Function x}) => null;
-f2(int x0, {int x}) => null;
-void f3(int x0, {List<int> x}) => null;
-int Function(int x0, [int x1]) f4(int x) => null;
-int Function(int x0, {List<Function> x}) f5(int x) => null;
-Function Function(int x) f6(int x) => null;
-Function Function(int y, [List<Function> x]) f7(int x) => null;
-Function Function(int x0, [List<int> x1]) f8(int x) => null;
-List<Function> Function({Function x}) f9(int x) => null;
-List<Function> Function(List<int> x) f10(int x) => null;
-core.List<core.int> Function(int x0, [Function x]) f11(int x) => null;
-core.List<core.int> Function([core.List<core.int> x0]) f12(int x) => null;
-List<int> Function(int x, [int x0]) f13(int x) => null;
-List<int> Function(int y, {List<Function> x}) f14(int x) => null;
-Function([int x]) f15(int x) => null;
-Function(List<Function> x0) f16(int x) => null;
-Function(int x, [List<int> x0]) f17(int x) => null;
-void Function(int x0, {Function x}) f18(int x) => null;
-void Function([List<int> x]) f19(int x) => null;
-Function Function<A>(A x) f20(int x) => null;
-List<int> Function<A>(List<A> x) f21(int x) => null;
-void Function<A>(int x) f22(int x) => null;
-
-class U89<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(core.List<core.int> x) x0;
-  core.List<core.int> Function(int y, {Function x}) x1;
-  Function(int x0, {int x}) x2;
-  void Function(int x0, {List<T> x}) x3;
-  int Function(int x2, [int x3]) Function(int x) x4;
-  int Function(int x1, {List<Function> x}) Function(int x) x5;
-  Function Function(int x) Function(int x) x6;
-  Function Function(int y, [List<Function> x]) Function(int x) x7;
-  Function Function(int x2, [List<T> x3]) Function(int x) x8;
-  List<Function> Function({Function x}) Function(int x) x9;
-  List<Function> Function(List<T> x) Function(int x) x10;
-  core.List<core.int> Function(int x1, [Function x]) Function(int x) x11;
-  core.List<core.int> Function([core.List<core.int> x1]) Function(int x) x12;
-  List<T> Function(int x, [int x1]) Function(int x) x13;
-  List<T> Function(int y, {List<Function> x}) Function(int x) x14;
-  Function([int x]) Function(int x) x15;
-  Function(List<Function> x1) Function(int x) x16;
-  Function(int x, [List<T> x1]) Function(int x) x17;
-  void Function(int x1, {Function x}) Function(int x) x18;
-  void Function([List<T> x]) Function(int x) x19;
-  Function Function<A>(A x) Function(int x) x20;
-  List<T> Function<A>(List<A> x) Function(int x) x21;
-  void Function<A>(int x) Function(int x) x22;
-
-  U89({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(core.List<core.int> x) => null;
-  core.List<core.int> m1(int y, {Function x}) => null;
-  m2(int x0, {int x}) => null;
-  void m3(int x0, {List<T> x}) => null;
-  int Function(int x0, [int x1]) m4(int x) => null;
-  int Function(int x0, {List<Function> x}) m5(int x) => null;
-  Function Function(int x) m6(int x) => null;
-  Function Function(int y, [List<Function> x]) m7(int x) => null;
-  Function Function(int x0, [List<T> x1]) m8(int x) => null;
-  List<Function> Function({Function x}) m9(int x) => null;
-  List<Function> Function(List<T> x) m10(int x) => null;
-  core.List<core.int> Function(int x0, [Function x]) m11(int x) => null;
-  core.List<core.int> Function([core.List<core.int> x0]) m12(int x) => null;
-  List<T> Function(int x, [int x0]) m13(int x) => null;
-  List<T> Function(int y, {List<Function> x}) m14(int x) => null;
-  Function([int x]) m15(int x) => null;
-  Function(List<Function> x0) m16(int x) => null;
-  Function(int x, [List<T> x0]) m17(int x) => null;
-  void Function(int x0, {Function x}) m18(int x) => null;
-  void Function([List<T> x]) m19(int x) => null;
-  Function Function<A>(A x) m20(int x) => null;
-  List<T> Function<A>(List<A> x) m21(int x) => null;
-  void Function<A>(int x) m22(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(core.List<core.int> x)
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(core.List<core.int> x) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(core.List<core.int> x));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function(int y, {Function x})
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, {Function x}) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function(int y, {Function x}));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// Function(int x0, {int x})
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    Function(int x0, {int x}) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is Function(int x0, {int x}));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// void Function(int x0, {List<T> x})
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int x0, {List<T> x}) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int x0, {List<T> x}));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-    // The static function has its T always set to int.
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isFalse(f3 is F3<bool>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    Expect.isFalse(confuse(f3) is F3<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        x3 = confuse(f3);
-      });
-      Expect.throws(() {
-        l3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        l3 = confuse(f3);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m3 is F3<int>);
-      Expect.equals(true, m3 is F3<bool>);
-      Expect.equals(true, confuse(m3) is F3<int>);
-      Expect.equals(true, confuse(m3) is F3<bool>);
-    }
-  }
-
-  /// int Function(int x2, [int x3]) Function(int x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function(int x2, [int x3]) Function(int x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is int Function(int x2, [int x3]) Function(int x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x1, {List<Function> x}) Function(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, {List<Function> x}) Function(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(
-        m5 is int Function(int x1, {List<Function> x}) Function(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// Function Function(int x) Function(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x) Function(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is Function Function(int x) Function(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int y, [List<Function> x]) Function(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, [List<Function> x]) Function(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(
-        m7 is Function Function(int y, [List<Function> x]) Function(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x2, [List<T> x3]) Function(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x2, [List<T> x3]) Function(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(
-        m8 is Function Function(int x2, [List<T> x3]) Function(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function({Function x}) Function(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function({Function x}) Function(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function({Function x}) Function(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(List<T> x) Function(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(List<T> x) Function(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(List<T> x) Function(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-    // The static function has its T always set to int.
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isFalse(f10 is F10<bool>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    Expect.isFalse(confuse(f10) is F10<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x10 = (f10 as dynamic);
-      });
-      Expect.throws(() {
-        x10 = confuse(f10);
-      });
-      Expect.throws(() {
-        l10 = (f10 as dynamic);
-      });
-      Expect.throws(() {
-        l10 = confuse(f10);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m10 is F10<int>);
-      Expect.equals(tIsBool, m10 is F10<bool>);
-      Expect.equals(tIsInt, confuse(m10) is F10<int>);
-      Expect.equals(tIsBool, confuse(m10) is F10<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int x1, [Function x]) Function(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, [Function x]) Function(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(int x1, [Function x])
-        Function(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function([core.List<core.int> x1]) Function(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([core.List<core.int> x1]) Function(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function([core.List<core.int> x1])
-        Function(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int x, [int x1]) Function(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x, [int x1]) Function(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function(int x, [int x1]) Function(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, {List<Function> x}) Function(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, {List<Function> x}) Function(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(
-        m14 is List<T> Function(int y, {List<Function> x}) Function(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// Function([int x]) Function(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    Function([int x]) Function(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is Function([int x]) Function(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-  }
-
-  /// Function(List<Function> x1) Function(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(List<Function> x1) Function(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(List<Function> x1) Function(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x, [List<T> x1]) Function(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x, [List<T> x1]) Function(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x, [List<T> x1]) Function(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(int x1, {Function x}) Function(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, {Function x}) Function(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x1, {Function x}) Function(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function([List<T> x]) Function(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function([List<T> x]) Function(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function([List<T> x]) Function(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-    // The static function has its T always set to int.
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isFalse(f19 is F19<bool>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    Expect.isFalse(confuse(f19) is F19<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        x19 = confuse(f19);
-      });
-      Expect.throws(() {
-        l19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        l19 = confuse(f19);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m19 is F19<int>);
-      Expect.equals(tIsBool, m19 is F19<bool>);
-      Expect.equals(tIsInt, confuse(m19) is F19<int>);
-      Expect.equals(tIsBool, confuse(m19) is F19<bool>);
-    }
-  }
-
-  /// Function Function<A>(A x) Function(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(A x) Function(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is Function Function<A>(A x) Function(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(List<A> x) Function(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(List<A> x) Function(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<T> Function<A>(List<A> x) Function(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// void Function<A>(int x) Function(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(int x) Function(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is void Function<A>(int x) Function(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U89().runTests();
-  new U89<int>(tIsInt: true).runTests();
-  new U89<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type8_test.dart b/tests/language_2/function_type/function_type8_test.dart
deleted file mode 100644
index 800b1b18b39..00000000000
--- a/tests/language_2/function_type/function_type8_test.dart
+++ /dev/null
@@ -1,898 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function({int x});
-typedef F1<T> = Function Function({List<T> x});
-typedef F2<T> = core.List<core.int> Function(int x, [core.List<core.int> x2]);
-typedef F3<T> = Function(int x1, [List<Function> x2]);
-typedef F4<T> = List<Function> Function<A>(int x);
-typedef F5<T> = int Function(Function x) Function();
-typedef F6<T> = int Function(int y, [core.List<core.int> x]) Function();
-typedef F7<T> = Function Function([int x1]) Function();
-typedef F8<T> = Function Function({List<Function> x}) Function();
-typedef F9<T> = Function Function() Function();
-typedef F10<T> = List<Function> Function(int x0, [List<Function> x]) Function();
-typedef F11<T> = List<Function> Function([List<T> x1]) Function();
-typedef F12<T> = core.List<core.int> Function(int x, [Function x2]) Function();
-typedef F13<T> = core.List<core.int> Function(int y, {core.List<core.int> x})
-    Function();
-typedef F14<T> = List<T> Function([Function x]) Function();
-typedef F15<T> = List<T> Function(core.List<core.int> x0) Function();
-typedef F16<T> = Function(int x1, [int x2]) Function();
-typedef F17<T> = Function(int x0, {List<Function> x}) Function();
-typedef F18<T> = void Function(int x) Function();
-typedef F19<T> = void Function(int y, [List<Function> x]) Function();
-typedef F20<T> = void Function(int x1, [List<T> x2]) Function();
-typedef F21<T> = List<Function> Function<A>(core.List<core.int> x) Function();
-typedef F22<T> = Function<A>(List<T> x) Function();
-typedef F23<T> = void Function<A>() Function();
-
-int f0({int x}) => null;
-Function f1({List<int> x}) => null;
-core.List<core.int> f2(int x, [core.List<core.int> x0]) => null;
-f3(int x0, [List<Function> x1]) => null;
-List<Function> f4<A>(int x) => null;
-int Function(Function x) f5() => null;
-int Function(int y, [core.List<core.int> x]) f6() => null;
-Function Function([int x0]) f7() => null;
-Function Function({List<Function> x}) f8() => null;
-Function Function() f9() => null;
-List<Function> Function(int x0, [List<Function> x]) f10() => null;
-List<Function> Function([List<int> x0]) f11() => null;
-core.List<core.int> Function(int x, [Function x0]) f12() => null;
-core.List<core.int> Function(int y, {core.List<core.int> x}) f13() => null;
-List<int> Function([Function x]) f14() => null;
-List<int> Function(core.List<core.int> x0) f15() => null;
-Function(int x0, [int x1]) f16() => null;
-Function(int x0, {List<Function> x}) f17() => null;
-void Function(int x) f18() => null;
-void Function(int y, [List<Function> x]) f19() => null;
-void Function(int x0, [List<int> x1]) f20() => null;
-List<Function> Function<A>(core.List<core.int> x) f21() => null;
-Function<A>(List<int> x) f22() => null;
-void Function<A>() f23() => null;
-
-class U8<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function({int x}) x0;
-  Function Function({List<T> x}) x1;
-  core.List<core.int> Function(int x, [core.List<core.int> x2]) x2;
-  Function(int x1, [List<Function> x2]) x3;
-  List<Function> Function<A>(int x) x4;
-  int Function(Function x) Function() x5;
-  int Function(int y, [core.List<core.int> x]) Function() x6;
-  Function Function([int x1]) Function() x7;
-  Function Function({List<Function> x}) Function() x8;
-  Function Function() Function() x9;
-  List<Function> Function(int x0, [List<Function> x]) Function() x10;
-  List<Function> Function([List<T> x1]) Function() x11;
-  core.List<core.int> Function(int x, [Function x2]) Function() x12;
-  core.List<core.int> Function(int y, {core.List<core.int> x}) Function() x13;
-  List<T> Function([Function x]) Function() x14;
-  List<T> Function(core.List<core.int> x0) Function() x15;
-  Function(int x1, [int x2]) Function() x16;
-  Function(int x0, {List<Function> x}) Function() x17;
-  void Function(int x) Function() x18;
-  void Function(int y, [List<Function> x]) Function() x19;
-  void Function(int x1, [List<T> x2]) Function() x20;
-  List<Function> Function<A>(core.List<core.int> x) Function() x21;
-  Function<A>(List<T> x) Function() x22;
-  void Function<A>() Function() x23;
-
-  U8({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0({int x}) => null;
-  Function m1({List<T> x}) => null;
-  core.List<core.int> m2(int x, [core.List<core.int> x0]) => null;
-  m3(int x0, [List<Function> x1]) => null;
-  List<Function> m4<A>(int x) => null;
-  int Function(Function x) m5() => null;
-  int Function(int y, [core.List<core.int> x]) m6() => null;
-  Function Function([int x0]) m7() => null;
-  Function Function({List<Function> x}) m8() => null;
-  Function Function() m9() => null;
-  List<Function> Function(int x0, [List<Function> x]) m10() => null;
-  List<Function> Function([List<T> x0]) m11() => null;
-  core.List<core.int> Function(int x, [Function x0]) m12() => null;
-  core.List<core.int> Function(int y, {core.List<core.int> x}) m13() => null;
-  List<T> Function([Function x]) m14() => null;
-  List<T> Function(core.List<core.int> x0) m15() => null;
-  Function(int x0, [int x1]) m16() => null;
-  Function(int x0, {List<Function> x}) m17() => null;
-  void Function(int x) m18() => null;
-  void Function(int y, [List<Function> x]) m19() => null;
-  void Function(int x0, [List<T> x1]) m20() => null;
-  List<Function> Function<A>(core.List<core.int> x) m21() => null;
-  Function<A>(List<T> x) m22() => null;
-  void Function<A>() m23() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function({int x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function({int x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function({int x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// Function Function({List<T> x})
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    Function Function({List<T> x}) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is Function Function({List<T> x}));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-    // The static function has its T always set to int.
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isFalse(f1 is F1<bool>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    Expect.isFalse(confuse(f1) is F1<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        x1 = confuse(f1);
-      });
-      Expect.throws(() {
-        l1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        l1 = confuse(f1);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m1 is F1<int>);
-      Expect.equals(true, m1 is F1<bool>);
-      Expect.equals(true, confuse(m1) is F1<int>);
-      Expect.equals(true, confuse(m1) is F1<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int x, [core.List<core.int> x2])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x, [core.List<core.int> x2]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(
-        m2 is core.List<core.int> Function(int x, [core.List<core.int> x2]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// Function(int x1, [List<Function> x2])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, [List<Function> x2]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function(int x1, [List<Function> x2]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// List<Function> Function<A>(int x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(int x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is List<Function> Function<A>(int x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(Function x) Function()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(Function x) Function() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(Function x) Function());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int y, [core.List<core.int> x]) Function()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, [core.List<core.int> x]) Function() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is int Function(int y, [core.List<core.int> x]) Function());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function([int x1]) Function()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function([int x1]) Function() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function([int x1]) Function());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function({List<Function> x}) Function()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function({List<Function> x}) Function() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function({List<Function> x}) Function());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// Function Function() Function()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    Function Function() Function() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is Function Function() Function());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x0, [List<Function> x]) Function()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x0, [List<Function> x]) Function() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(
-        m10 is List<Function> Function(int x0, [List<Function> x]) Function());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function([List<T> x1]) Function()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([List<T> x1]) Function() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is List<Function> Function([List<T> x1]) Function());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int x, [Function x2]) Function()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x, [Function x2]) Function() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(
-        m12 is core.List<core.int> Function(int x, [Function x2]) Function());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int y, {core.List<core.int> x}) Function()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, {core.List<core.int> x}) Function() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(int y,
-            {core.List<core.int> x})
-        Function());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-  }
-
-  /// List<T> Function([Function x]) Function()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([Function x]) Function() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function([Function x]) Function());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(core.List<core.int> x0) Function()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(core.List<core.int> x0) Function() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is List<T> Function(core.List<core.int> x0) Function());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x1, [int x2]) Function()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, [int x2]) Function() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x1, [int x2]) Function());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x0, {List<Function> x}) Function()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x0, {List<Function> x}) Function() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x0, {List<Function> x}) Function());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int x) Function()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x) Function() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x) Function());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int y, [List<Function> x]) Function()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, [List<Function> x]) Function() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int y, [List<Function> x]) Function());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function(int x1, [List<T> x2]) Function()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, [List<T> x2]) Function() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is void Function(int x1, [List<T> x2]) Function());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(core.List<core.int> x) Function()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(core.List<core.int> x) Function() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(
-        m21 is List<Function> Function<A>(core.List<core.int> x) Function());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// Function<A>(List<T> x) Function()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    Function<A>(List<T> x) Function() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is Function<A>(List<T> x) Function());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-    // The static function has its T always set to int.
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isFalse(f22 is F22<bool>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    Expect.isFalse(confuse(f22) is F22<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x22 = (f22 as dynamic);
-      });
-      Expect.throws(() {
-        x22 = confuse(f22);
-      });
-      Expect.throws(() {
-        l22 = (f22 as dynamic);
-      });
-      Expect.throws(() {
-        l22 = confuse(f22);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m22 is F22<int>);
-      Expect.equals(tIsBool, m22 is F22<bool>);
-      Expect.equals(tIsInt, confuse(m22) is F22<int>);
-      Expect.equals(tIsBool, confuse(m22) is F22<bool>);
-    }
-  }
-
-  /// void Function<A>() Function()
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    void Function<A>() Function() l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is void Function<A>() Function());
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U8().runTests();
-  new U8<int>(tIsInt: true).runTests();
-  new U8<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type90_test.dart b/tests/language_2/function_type/function_type90_test.dart
deleted file mode 100644
index 98b1ca3f3f3..00000000000
--- a/tests/language_2/function_type/function_type90_test.dart
+++ /dev/null
@@ -1,951 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function([core.List<core.int> x]);
-typedef F1<T> = core.List<core.int> Function(List<Function> x);
-typedef F2<T> = Function(int y, {int x});
-typedef F3<T> = void Function(int y, {List<T> x});
-typedef F4<T> = int Function(int x2, [int x3]) Function<B extends core.int>();
-typedef F5<T> = int Function(int x1, {List<Function> x})
-    Function<B extends core.int>();
-typedef F6<T> = Function Function(int x) Function<B extends core.int>();
-typedef F7<T> = Function Function(int y, [List<Function> x])
-    Function<B extends core.int>();
-typedef F8<T> = Function Function(int x2, [List<T> x3])
-    Function<B extends core.int>();
-typedef F9<T> = List<Function> Function({Function x})
-    Function<B extends core.int>();
-typedef F10<T> = List<Function> Function(List<T> x)
-    Function<B extends core.int>();
-typedef F11<T> = core.List<core.int> Function(int x1, [Function x])
-    Function<B extends core.int>();
-typedef F12<T> = core.List<core.int> Function([core.List<core.int> x1])
-    Function<B extends core.int>();
-typedef F13<T> = List<T> Function(int x, [int x1])
-    Function<B extends core.int>();
-typedef F14<T> = List<T> Function(int y, {List<Function> x})
-    Function<B extends core.int>();
-typedef F15<T> = Function([int x]) Function<B extends core.int>();
-typedef F16<T> = Function(List<Function> x1) Function<B extends core.int>();
-typedef F17<T> = Function(int x, [List<T> x1]) Function<B extends core.int>();
-typedef F18<T> = void Function(int x1, {Function x})
-    Function<B extends core.int>();
-typedef F19<T> = void Function([List<T> x]) Function<B extends core.int>();
-typedef F20<T> = Function Function<A>(A x) Function<B extends core.int>();
-typedef F21<T> = List<T> Function<A>(List<A> x) Function<B extends core.int>();
-typedef F22<T> = void Function<A>(int x) Function<B extends core.int>();
-
-Function f0([core.List<core.int> x]) => null;
-core.List<core.int> f1(List<Function> x) => null;
-f2(int y, {int x}) => null;
-void f3(int y, {List<int> x}) => null;
-int Function(int x0, [int x1]) f4<B extends core.int>() => null;
-int Function(int x0, {List<Function> x}) f5<B extends core.int>() => null;
-Function Function(int x) f6<B extends core.int>() => null;
-Function Function(int y, [List<Function> x]) f7<B extends core.int>() => null;
-Function Function(int x0, [List<int> x1]) f8<B extends core.int>() => null;
-List<Function> Function({Function x}) f9<B extends core.int>() => null;
-List<Function> Function(List<int> x) f10<B extends core.int>() => null;
-core.List<core.int> Function(int x0, [Function x]) f11<B extends core.int>() =>
-    null;
-core.List<core.int> Function([core.List<core.int> x0])
-    f12<B extends core.int>() => null;
-List<int> Function(int x, [int x0]) f13<B extends core.int>() => null;
-List<int> Function(int y, {List<Function> x}) f14<B extends core.int>() => null;
-Function([int x]) f15<B extends core.int>() => null;
-Function(List<Function> x0) f16<B extends core.int>() => null;
-Function(int x, [List<int> x0]) f17<B extends core.int>() => null;
-void Function(int x0, {Function x}) f18<B extends core.int>() => null;
-void Function([List<int> x]) f19<B extends core.int>() => null;
-Function Function<A>(A x) f20<B extends core.int>() => null;
-List<int> Function<A>(List<A> x) f21<B extends core.int>() => null;
-void Function<A>(int x) f22<B extends core.int>() => null;
-
-class U90<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function([core.List<core.int> x]) x0;
-  core.List<core.int> Function(List<Function> x) x1;
-  Function(int y, {int x}) x2;
-  void Function(int y, {List<T> x}) x3;
-  int Function(int x2, [int x3]) Function<B extends core.int>() x4;
-  int Function(int x1, {List<Function> x}) Function<B extends core.int>() x5;
-  Function Function(int x) Function<B extends core.int>() x6;
-  Function Function(int y, [List<Function> x]) Function<B extends core.int>()
-      x7;
-  Function Function(int x2, [List<T> x3]) Function<B extends core.int>() x8;
-  List<Function> Function({Function x}) Function<B extends core.int>() x9;
-  List<Function> Function(List<T> x) Function<B extends core.int>() x10;
-  core.List<core.int> Function(int x1, [Function x])
-      Function<B extends core.int>() x11;
-  core.List<core.int> Function([core.List<core.int> x1])
-      Function<B extends core.int>() x12;
-  List<T> Function(int x, [int x1]) Function<B extends core.int>() x13;
-  List<T> Function(int y, {List<Function> x}) Function<B extends core.int>()
-      x14;
-  Function([int x]) Function<B extends core.int>() x15;
-  Function(List<Function> x1) Function<B extends core.int>() x16;
-  Function(int x, [List<T> x1]) Function<B extends core.int>() x17;
-  void Function(int x1, {Function x}) Function<B extends core.int>() x18;
-  void Function([List<T> x]) Function<B extends core.int>() x19;
-  Function Function<A>(A x) Function<B extends core.int>() x20;
-  List<T> Function<A>(List<A> x) Function<B extends core.int>() x21;
-  void Function<A>(int x) Function<B extends core.int>() x22;
-
-  U90({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0([core.List<core.int> x]) => null;
-  core.List<core.int> m1(List<Function> x) => null;
-  m2(int y, {int x}) => null;
-  void m3(int y, {List<T> x}) => null;
-  int Function(int x0, [int x1]) m4<B extends core.int>() => null;
-  int Function(int x0, {List<Function> x}) m5<B extends core.int>() => null;
-  Function Function(int x) m6<B extends core.int>() => null;
-  Function Function(int y, [List<Function> x]) m7<B extends core.int>() => null;
-  Function Function(int x0, [List<T> x1]) m8<B extends core.int>() => null;
-  List<Function> Function({Function x}) m9<B extends core.int>() => null;
-  List<Function> Function(List<T> x) m10<B extends core.int>() => null;
-  core.List<core.int> Function(int x0, [Function x])
-      m11<B extends core.int>() => null;
-  core.List<core.int> Function([core.List<core.int> x0])
-      m12<B extends core.int>() => null;
-  List<T> Function(int x, [int x0]) m13<B extends core.int>() => null;
-  List<T> Function(int y, {List<Function> x}) m14<B extends core.int>() => null;
-  Function([int x]) m15<B extends core.int>() => null;
-  Function(List<Function> x0) m16<B extends core.int>() => null;
-  Function(int x, [List<T> x0]) m17<B extends core.int>() => null;
-  void Function(int x0, {Function x}) m18<B extends core.int>() => null;
-  void Function([List<T> x]) m19<B extends core.int>() => null;
-  Function Function<A>(A x) m20<B extends core.int>() => null;
-  List<T> Function<A>(List<A> x) m21<B extends core.int>() => null;
-  void Function<A>(int x) m22<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function([core.List<core.int> x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function([core.List<core.int> x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function([core.List<core.int> x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function(List<Function> x)
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(List<Function> x) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function(List<Function> x));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// Function(int y, {int x})
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    Function(int y, {int x}) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is Function(int y, {int x}));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// void Function(int y, {List<T> x})
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, {List<T> x}) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function(int y, {List<T> x}));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-    // The static function has its T always set to int.
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isFalse(f3 is F3<bool>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    Expect.isFalse(confuse(f3) is F3<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        x3 = confuse(f3);
-      });
-      Expect.throws(() {
-        l3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        l3 = confuse(f3);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m3 is F3<int>);
-      Expect.equals(true, m3 is F3<bool>);
-      Expect.equals(true, confuse(m3) is F3<int>);
-      Expect.equals(true, confuse(m3) is F3<bool>);
-    }
-  }
-
-  /// int Function(int x2, [int x3]) Function<B extends core.int>()
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function(int x2, [int x3]) Function<B extends core.int>() l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(
-        m4 is int Function(int x2, [int x3]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x1, {List<Function> x}) Function<B extends core.int>()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, {List<Function> x}) Function<B extends core.int>() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x1, {List<Function> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// Function Function(int x) Function<B extends core.int>()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x) Function<B extends core.int>() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is Function Function(int x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int y, [List<Function> x]) Function<B extends core.int>()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, [List<Function> x]) Function<B extends core.int>()
-        l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int y, [List<Function> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x2, [List<T> x3]) Function<B extends core.int>()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x2, [List<T> x3]) Function<B extends core.int>() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x2, [List<T> x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function({Function x}) Function<B extends core.int>()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function({Function x}) Function<B extends core.int>() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function({Function x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(List<T> x) Function<B extends core.int>()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(List<T> x) Function<B extends core.int>() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(List<T> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-    // The static function has its T always set to int.
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isFalse(f10 is F10<bool>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    Expect.isFalse(confuse(f10) is F10<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x10 = (f10 as dynamic);
-      });
-      Expect.throws(() {
-        x10 = confuse(f10);
-      });
-      Expect.throws(() {
-        l10 = (f10 as dynamic);
-      });
-      Expect.throws(() {
-        l10 = confuse(f10);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m10 is F10<int>);
-      Expect.equals(tIsBool, m10 is F10<bool>);
-      Expect.equals(tIsInt, confuse(m10) is F10<int>);
-      Expect.equals(tIsBool, confuse(m10) is F10<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int x1, [Function x]) Function<B extends core.int>()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, [Function x])
-        Function<B extends core.int>() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(int x1, [Function x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function([core.List<core.int> x1]) Function<B extends core.int>()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([core.List<core.int> x1])
-        Function<B extends core.int>() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function([core.List<core.int> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int x, [int x1]) Function<B extends core.int>()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x, [int x1]) Function<B extends core.int>() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function(int x, [int x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, {List<Function> x}) Function<B extends core.int>()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, {List<Function> x}) Function<B extends core.int>()
-        l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int y, {List<Function> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// Function([int x]) Function<B extends core.int>()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    Function([int x]) Function<B extends core.int>() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is Function([int x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-  }
-
-  /// Function(List<Function> x1) Function<B extends core.int>()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(List<Function> x1) Function<B extends core.int>() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function(List<Function> x1) Function<B extends core.int>());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x, [List<T> x1]) Function<B extends core.int>()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x, [List<T> x1]) Function<B extends core.int>() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(
-        m17 is Function(int x, [List<T> x1]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(int x1, {Function x}) Function<B extends core.int>()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, {Function x}) Function<B extends core.int>() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x1, {Function x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function([List<T> x]) Function<B extends core.int>()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function([List<T> x]) Function<B extends core.int>() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(
-        m19 is void Function([List<T> x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-    // The static function has its T always set to int.
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isFalse(f19 is F19<bool>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    Expect.isFalse(confuse(f19) is F19<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        x19 = confuse(f19);
-      });
-      Expect.throws(() {
-        l19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        l19 = confuse(f19);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m19 is F19<int>);
-      Expect.equals(tIsBool, m19 is F19<bool>);
-      Expect.equals(tIsInt, confuse(m19) is F19<int>);
-      Expect.equals(tIsBool, confuse(m19) is F19<bool>);
-    }
-  }
-
-  /// Function Function<A>(A x) Function<B extends core.int>()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(A x) Function<B extends core.int>() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(
-        m20 is Function Function<A>(A x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(List<A> x) Function<B extends core.int>()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(List<A> x) Function<B extends core.int>() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(
-        m21 is List<T> Function<A>(List<A> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// void Function<A>(int x) Function<B extends core.int>()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(int x) Function<B extends core.int>() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(
-        m22 is void Function<A>(int x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U90().runTests();
-  new U90<int>(tIsInt: true).runTests();
-  new U90<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type91_test.dart b/tests/language_2/function_type/function_type91_test.dart
deleted file mode 100644
index 784144ec94f..00000000000
--- a/tests/language_2/function_type/function_type91_test.dart
+++ /dev/null
@@ -1,943 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(int x0, [core.List<core.int> x]);
-typedef F1<T> = core.List<core.int> Function([List<Function> x]);
-typedef F2<T> = Function(Function x);
-typedef F3<T> = void Function();
-typedef F4<T> = int Function(int x2, [int x3]) Function<B extends core.int>(
-    int x);
-typedef F5<T> = int Function(int x1, {List<Function> x})
-    Function<B extends core.int>(int x);
-typedef F6<T> = Function Function(int x) Function<B extends core.int>(int x);
-typedef F7<T> = Function Function(int y, [List<Function> x])
-    Function<B extends core.int>(int x);
-typedef F8<T> = Function Function(int x2, [List<T> x3])
-    Function<B extends core.int>(int x);
-typedef F9<T> = List<Function> Function({Function x})
-    Function<B extends core.int>(int x);
-typedef F10<T> = List<Function> Function(List<T> x)
-    Function<B extends core.int>(int x);
-typedef F11<T> = core.List<core.int> Function(int x1, [Function x])
-    Function<B extends core.int>(int x);
-typedef F12<T> = core.List<core.int> Function([core.List<core.int> x1])
-    Function<B extends core.int>(int x);
-typedef F13<T> = List<T> Function(int x, [int x1]) Function<B extends core.int>(
-    int x);
-typedef F14<T> = List<T> Function(int y, {List<Function> x})
-    Function<B extends core.int>(int x);
-typedef F15<T> = Function([int x]) Function<B extends core.int>(int x);
-typedef F16<T> = Function(List<Function> x1) Function<B extends core.int>(
-    int x);
-typedef F17<T> = Function(int x, [List<T> x1]) Function<B extends core.int>(
-    int x);
-typedef F18<T> = void Function(int x1, {Function x})
-    Function<B extends core.int>(int x);
-typedef F19<T> = void Function([List<T> x]) Function<B extends core.int>(int x);
-typedef F20<T> = Function Function<A>(A x) Function<B extends core.int>(int x);
-typedef F21<T> = List<T> Function<A>(List<A> x) Function<B extends core.int>(
-    int x);
-typedef F22<T> = void Function<A>(int x) Function<B extends core.int>(int x);
-
-Function f0(int x0, [core.List<core.int> x]) => null;
-core.List<core.int> f1([List<Function> x]) => null;
-f2(Function x) => null;
-void f3() => null;
-int Function(int x0, [int x1]) f4<B extends core.int>(int x) => null;
-int Function(int x0, {List<Function> x}) f5<B extends core.int>(int x) => null;
-Function Function(int x) f6<B extends core.int>(int x) => null;
-Function Function(int y, [List<Function> x]) f7<B extends core.int>(int x) =>
-    null;
-Function Function(int x0, [List<int> x1]) f8<B extends core.int>(int x) => null;
-List<Function> Function({Function x}) f9<B extends core.int>(int x) => null;
-List<Function> Function(List<int> x) f10<B extends core.int>(int x) => null;
-core.List<core.int> Function(int x0, [Function x]) f11<B extends core.int>(
-        int x) =>
-    null;
-core.List<core.int> Function([core.List<core.int> x0]) f12<B extends core.int>(
-        int x) =>
-    null;
-List<int> Function(int x, [int x0]) f13<B extends core.int>(int x) => null;
-List<int> Function(int y, {List<Function> x}) f14<B extends core.int>(int x) =>
-    null;
-Function([int x]) f15<B extends core.int>(int x) => null;
-Function(List<Function> x0) f16<B extends core.int>(int x) => null;
-Function(int x, [List<int> x0]) f17<B extends core.int>(int x) => null;
-void Function(int x0, {Function x}) f18<B extends core.int>(int x) => null;
-void Function([List<int> x]) f19<B extends core.int>(int x) => null;
-Function Function<A>(A x) f20<B extends core.int>(int x) => null;
-List<int> Function<A>(List<A> x) f21<B extends core.int>(int x) => null;
-void Function<A>(int x) f22<B extends core.int>(int x) => null;
-
-class U91<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(int x0, [core.List<core.int> x]) x0;
-  core.List<core.int> Function([List<Function> x]) x1;
-  Function(Function x) x2;
-  void Function() x3;
-  int Function(int x2, [int x3]) Function<B extends core.int>(int x) x4;
-  int Function(int x1, {List<Function> x}) Function<B extends core.int>(int x)
-      x5;
-  Function Function(int x) Function<B extends core.int>(int x) x6;
-  Function Function(int y, [List<Function> x]) Function<B extends core.int>(
-      int x) x7;
-  Function Function(int x2, [List<T> x3]) Function<B extends core.int>(int x)
-      x8;
-  List<Function> Function({Function x}) Function<B extends core.int>(int x) x9;
-  List<Function> Function(List<T> x) Function<B extends core.int>(int x) x10;
-  core.List<core.int> Function(int x1, [Function x])
-      Function<B extends core.int>(int x) x11;
-  core.List<core.int> Function([core.List<core.int> x1])
-      Function<B extends core.int>(int x) x12;
-  List<T> Function(int x, [int x1]) Function<B extends core.int>(int x) x13;
-  List<T> Function(int y, {List<Function> x}) Function<B extends core.int>(
-      int x) x14;
-  Function([int x]) Function<B extends core.int>(int x) x15;
-  Function(List<Function> x1) Function<B extends core.int>(int x) x16;
-  Function(int x, [List<T> x1]) Function<B extends core.int>(int x) x17;
-  void Function(int x1, {Function x}) Function<B extends core.int>(int x) x18;
-  void Function([List<T> x]) Function<B extends core.int>(int x) x19;
-  Function Function<A>(A x) Function<B extends core.int>(int x) x20;
-  List<T> Function<A>(List<A> x) Function<B extends core.int>(int x) x21;
-  void Function<A>(int x) Function<B extends core.int>(int x) x22;
-
-  U91({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(int x0, [core.List<core.int> x]) => null;
-  core.List<core.int> m1([List<Function> x]) => null;
-  m2(Function x) => null;
-  void m3() => null;
-  int Function(int x0, [int x1]) m4<B extends core.int>(int x) => null;
-  int Function(int x0, {List<Function> x}) m5<B extends core.int>(int x) =>
-      null;
-  Function Function(int x) m6<B extends core.int>(int x) => null;
-  Function Function(int y, [List<Function> x]) m7<B extends core.int>(int x) =>
-      null;
-  Function Function(int x0, [List<T> x1]) m8<B extends core.int>(int x) => null;
-  List<Function> Function({Function x}) m9<B extends core.int>(int x) => null;
-  List<Function> Function(List<T> x) m10<B extends core.int>(int x) => null;
-  core.List<core.int> Function(int x0, [Function x]) m11<B extends core.int>(
-          int x) =>
-      null;
-  core.List<core.int> Function([core.List<core.int> x0])
-      m12<B extends core.int>(int x) => null;
-  List<T> Function(int x, [int x0]) m13<B extends core.int>(int x) => null;
-  List<T> Function(int y, {List<Function> x}) m14<B extends core.int>(int x) =>
-      null;
-  Function([int x]) m15<B extends core.int>(int x) => null;
-  Function(List<Function> x0) m16<B extends core.int>(int x) => null;
-  Function(int x, [List<T> x0]) m17<B extends core.int>(int x) => null;
-  void Function(int x0, {Function x}) m18<B extends core.int>(int x) => null;
-  void Function([List<T> x]) m19<B extends core.int>(int x) => null;
-  Function Function<A>(A x) m20<B extends core.int>(int x) => null;
-  List<T> Function<A>(List<A> x) m21<B extends core.int>(int x) => null;
-  void Function<A>(int x) m22<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(int x0, [core.List<core.int> x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x0, [core.List<core.int> x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(int x0, [core.List<core.int> x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function([List<Function> x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([List<Function> x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function([List<Function> x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// Function(Function x)
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    Function(Function x) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is Function(Function x));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// void Function()
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    void Function() l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is void Function());
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// int Function(int x2, [int x3]) Function<B extends core.int>(int x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function(int x2, [int x3]) Function<B extends core.int>(int x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is int Function(int x2, [int x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int x1, {List<Function> x}) Function<B extends core.int>(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int x1, {List<Function> x}) Function<B extends core.int>(int x)
-        l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int x1, {List<Function> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// Function Function(int x) Function<B extends core.int>(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x) Function<B extends core.int>(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is Function Function(int x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(int y, [List<Function> x]) Function<B extends core.int>(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, [List<Function> x]) Function<B extends core.int>(
-        int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(int y, [List<Function> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x2, [List<T> x3]) Function<B extends core.int>(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x2, [List<T> x3]) Function<B extends core.int>(int x)
-        l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x2, [List<T> x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function({Function x}) Function<B extends core.int>(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function({Function x}) Function<B extends core.int>(int x)
-        l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function({Function x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(List<T> x) Function<B extends core.int>(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(List<T> x) Function<B extends core.int>(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(List<T> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-    // The static function has its T always set to int.
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isFalse(f10 is F10<bool>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    Expect.isFalse(confuse(f10) is F10<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x10 = (f10 as dynamic);
-      });
-      Expect.throws(() {
-        x10 = confuse(f10);
-      });
-      Expect.throws(() {
-        l10 = (f10 as dynamic);
-      });
-      Expect.throws(() {
-        l10 = confuse(f10);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m10 is F10<int>);
-      Expect.equals(tIsBool, m10 is F10<bool>);
-      Expect.equals(tIsInt, confuse(m10) is F10<int>);
-      Expect.equals(tIsBool, confuse(m10) is F10<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int x1, [Function x]) Function<B extends core.int>(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, [Function x])
-        Function<B extends core.int>(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(int x1, [Function x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function([core.List<core.int> x1]) Function<B extends core.int>(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([core.List<core.int> x1])
-        Function<B extends core.int>(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function([core.List<core.int> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int x, [int x1]) Function<B extends core.int>(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x, [int x1]) Function<B extends core.int>(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function(int x, [int x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(int y, {List<Function> x}) Function<B extends core.int>(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int y, {List<Function> x}) Function<B extends core.int>(
-        int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(int y, {List<Function> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// Function([int x]) Function<B extends core.int>(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    Function([int x]) Function<B extends core.int>(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is Function([int x]) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-  }
-
-  /// Function(List<Function> x1) Function<B extends core.int>(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(List<Function> x1) Function<B extends core.int>(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function(List<Function> x1) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x, [List<T> x1]) Function<B extends core.int>(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x, [List<T> x1]) Function<B extends core.int>(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x, [List<T> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(int x1, {Function x}) Function<B extends core.int>(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, {Function x}) Function<B extends core.int>(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x1, {Function x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function([List<T> x]) Function<B extends core.int>(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function([List<T> x]) Function<B extends core.int>(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(
-        m19 is void Function([List<T> x]) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-    // The static function has its T always set to int.
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isFalse(f19 is F19<bool>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    Expect.isFalse(confuse(f19) is F19<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        x19 = confuse(f19);
-      });
-      Expect.throws(() {
-        l19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        l19 = confuse(f19);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m19 is F19<int>);
-      Expect.equals(tIsBool, m19 is F19<bool>);
-      Expect.equals(tIsInt, confuse(m19) is F19<int>);
-      Expect.equals(tIsBool, confuse(m19) is F19<bool>);
-    }
-  }
-
-  /// Function Function<A>(A x) Function<B extends core.int>(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(A x) Function<B extends core.int>(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(
-        m20 is Function Function<A>(A x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// List<T> Function<A>(List<A> x) Function<B extends core.int>(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<T> Function<A>(List<A> x) Function<B extends core.int>(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<T> Function<A>(List<A> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-    // The static function has its T always set to int.
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isFalse(f21 is F21<bool>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    Expect.isFalse(confuse(f21) is F21<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        x21 = confuse(f21);
-      });
-      Expect.throws(() {
-        l21 = (f21 as dynamic);
-      });
-      Expect.throws(() {
-        l21 = confuse(f21);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m21 is F21<int>);
-      Expect.equals(tIsBool, m21 is F21<bool>);
-      Expect.equals(tIsInt, confuse(m21) is F21<int>);
-      Expect.equals(tIsBool, confuse(m21) is F21<bool>);
-    }
-  }
-
-  /// void Function<A>(int x) Function<B extends core.int>(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(int x) Function<B extends core.int>(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(
-        m22 is void Function<A>(int x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U91().runTests();
-  new U91<int>(tIsInt: true).runTests();
-  new U91<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type92_test.dart b/tests/language_2/function_type/function_type92_test.dart
deleted file mode 100644
index 823ee3e1bba..00000000000
--- a/tests/language_2/function_type/function_type92_test.dart
+++ /dev/null
@@ -1,868 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(int y, [core.List<core.int> x]);
-typedef F1<T> = core.List<core.int> Function(int x0, [List<Function> x]);
-typedef F2<T> = Function([Function x]);
-typedef F3<T> = int Function<A>(int x);
-typedef F4<T> = int Function(int x, [int x2]) Function();
-typedef F5<T> = int Function(int y, {List<Function> x}) Function();
-typedef F6<T> = Function Function([int x]) Function();
-typedef F7<T> = Function Function(List<Function> x0) Function();
-typedef F8<T> = Function Function(int x, [List<T> x2]) Function();
-typedef F9<T> = List<Function> Function(int x0, {Function x}) Function();
-typedef F10<T> = List<Function> Function([List<T> x]) Function();
-typedef F11<T> = core.List<core.int> Function(int y, [Function x]) Function();
-typedef F12<T> = core.List<core.int> Function(int x1, [core.List<core.int> x2])
-    Function();
-typedef F13<T> = List<T> Function({int x}) Function();
-typedef F14<T> = List<T> Function(core.List<core.int> x) Function();
-typedef F15<T> = Function(int x0, [int x]) Function();
-typedef F16<T> = Function([List<Function> x1]) Function();
-typedef F17<T> = Function({List<T> x}) Function();
-typedef F18<T> = void Function(int y, {Function x}) Function();
-typedef F19<T> = void Function(int x0, [List<T> x]) Function();
-typedef F20<T> = Function Function<A>(List<A> x) Function();
-typedef F21<T> = Function<A>(int x) Function();
-typedef F22<T> = void Function<A>(Function x) Function();
-
-Function f0(int y, [core.List<core.int> x]) => null;
-core.List<core.int> f1(int x0, [List<Function> x]) => null;
-f2([Function x]) => null;
-int f3<A>(int x) => null;
-int Function(int x, [int x0]) f4() => null;
-int Function(int y, {List<Function> x}) f5() => null;
-Function Function([int x]) f6() => null;
-Function Function(List<Function> x0) f7() => null;
-Function Function(int x, [List<int> x0]) f8() => null;
-List<Function> Function(int x0, {Function x}) f9() => null;
-List<Function> Function([List<int> x]) f10() => null;
-core.List<core.int> Function(int y, [Function x]) f11() => null;
-core.List<core.int> Function(int x0, [core.List<core.int> x1]) f12() => null;
-List<int> Function({int x}) f13() => null;
-List<int> Function(core.List<core.int> x) f14() => null;
-Function(int x0, [int x]) f15() => null;
-Function([List<Function> x0]) f16() => null;
-Function({List<int> x}) f17() => null;
-void Function(int y, {Function x}) f18() => null;
-void Function(int x0, [List<int> x]) f19() => null;
-Function Function<A>(List<A> x) f20() => null;
-Function<A>(int x) f21() => null;
-void Function<A>(Function x) f22() => null;
-
-class U92<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(int y, [core.List<core.int> x]) x0;
-  core.List<core.int> Function(int x0, [List<Function> x]) x1;
-  Function([Function x]) x2;
-  int Function<A>(int x) x3;
-  int Function(int x, [int x2]) Function() x4;
-  int Function(int y, {List<Function> x}) Function() x5;
-  Function Function([int x]) Function() x6;
-  Function Function(List<Function> x0) Function() x7;
-  Function Function(int x, [List<T> x2]) Function() x8;
-  List<Function> Function(int x0, {Function x}) Function() x9;
-  List<Function> Function([List<T> x]) Function() x10;
-  core.List<core.int> Function(int y, [Function x]) Function() x11;
-  core.List<core.int> Function(int x1, [core.List<core.int> x2]) Function() x12;
-  List<T> Function({int x}) Function() x13;
-  List<T> Function(core.List<core.int> x) Function() x14;
-  Function(int x0, [int x]) Function() x15;
-  Function([List<Function> x1]) Function() x16;
-  Function({List<T> x}) Function() x17;
-  void Function(int y, {Function x}) Function() x18;
-  void Function(int x0, [List<T> x]) Function() x19;
-  Function Function<A>(List<A> x) Function() x20;
-  Function<A>(int x) Function() x21;
-  void Function<A>(Function x) Function() x22;
-
-  U92({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(int y, [core.List<core.int> x]) => null;
-  core.List<core.int> m1(int x0, [List<Function> x]) => null;
-  m2([Function x]) => null;
-  int m3<A>(int x) => null;
-  int Function(int x, [int x0]) m4() => null;
-  int Function(int y, {List<Function> x}) m5() => null;
-  Function Function([int x]) m6() => null;
-  Function Function(List<Function> x0) m7() => null;
-  Function Function(int x, [List<T> x0]) m8() => null;
-  List<Function> Function(int x0, {Function x}) m9() => null;
-  List<Function> Function([List<T> x]) m10() => null;
-  core.List<core.int> Function(int y, [Function x]) m11() => null;
-  core.List<core.int> Function(int x0, [core.List<core.int> x1]) m12() => null;
-  List<T> Function({int x}) m13() => null;
-  List<T> Function(core.List<core.int> x) m14() => null;
-  Function(int x0, [int x]) m15() => null;
-  Function([List<Function> x0]) m16() => null;
-  Function({List<T> x}) m17() => null;
-  void Function(int y, {Function x}) m18() => null;
-  void Function(int x0, [List<T> x]) m19() => null;
-  Function Function<A>(List<A> x) m20() => null;
-  Function<A>(int x) m21() => null;
-  void Function<A>(Function x) m22() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(int y, [core.List<core.int> x])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, [core.List<core.int> x]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(int y, [core.List<core.int> x]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function(int x0, [List<Function> x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x0, [List<Function> x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(
-        m1 is core.List<core.int> Function(int x0, [List<Function> x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// Function([Function x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    Function([Function x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is Function([Function x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// int Function<A>(int x)
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(int x) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is int Function<A>(int x));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// int Function(int x, [int x2]) Function()
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function(int x, [int x2]) Function() l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is int Function(int x, [int x2]) Function());
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int y, {List<Function> x}) Function()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, {List<Function> x}) Function() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int y, {List<Function> x}) Function());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// Function Function([int x]) Function()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    Function Function([int x]) Function() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is Function Function([int x]) Function());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(List<Function> x0) Function()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(List<Function> x0) Function() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(List<Function> x0) Function());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x, [List<T> x2]) Function()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x, [List<T> x2]) Function() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x, [List<T> x2]) Function());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(int x0, {Function x}) Function()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x0, {Function x}) Function() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(
-        m9 is List<Function> Function(int x0, {Function x}) Function());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function([List<T> x]) Function()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([List<T> x]) Function() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function([List<T> x]) Function());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-    // The static function has its T always set to int.
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isFalse(f10 is F10<bool>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    Expect.isFalse(confuse(f10) is F10<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x10 = (f10 as dynamic);
-      });
-      Expect.throws(() {
-        x10 = confuse(f10);
-      });
-      Expect.throws(() {
-        l10 = (f10 as dynamic);
-      });
-      Expect.throws(() {
-        l10 = confuse(f10);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m10 is F10<int>);
-      Expect.equals(tIsBool, m10 is F10<bool>);
-      Expect.equals(tIsInt, confuse(m10) is F10<int>);
-      Expect.equals(tIsBool, confuse(m10) is F10<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int y, [Function x]) Function()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, [Function x]) Function() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is core.List<core.int> Function(int y, [Function x]) Function());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x1, [core.List<core.int> x2]) Function()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, [core.List<core.int> x2]) Function()
-        l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x1,
-            [core.List<core.int> x2])
-        Function());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function({int x}) Function()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function({int x}) Function() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function({int x}) Function());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(core.List<core.int> x) Function()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(core.List<core.int> x) Function() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(core.List<core.int> x) Function());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// Function(int x0, [int x]) Function()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    Function(int x0, [int x]) Function() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is Function(int x0, [int x]) Function());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-  }
-
-  /// Function([List<Function> x1]) Function()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function([List<Function> x1]) Function() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function([List<Function> x1]) Function());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function({List<T> x}) Function()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function({List<T> x}) Function() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function({List<T> x}) Function());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(int y, {Function x}) Function()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, {Function x}) Function() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int y, {Function x}) Function());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x0, [List<T> x]) Function()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x0, [List<T> x]) Function() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int x0, [List<T> x]) Function());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-    // The static function has its T always set to int.
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isFalse(f19 is F19<bool>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    Expect.isFalse(confuse(f19) is F19<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        x19 = confuse(f19);
-      });
-      Expect.throws(() {
-        l19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        l19 = confuse(f19);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m19 is F19<int>);
-      Expect.equals(tIsBool, m19 is F19<bool>);
-      Expect.equals(tIsInt, confuse(m19) is F19<int>);
-      Expect.equals(tIsBool, confuse(m19) is F19<bool>);
-    }
-  }
-
-  /// Function Function<A>(List<A> x) Function()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(List<A> x) Function() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is Function Function<A>(List<A> x) Function());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// Function<A>(int x) Function()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    Function<A>(int x) Function() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is Function<A>(int x) Function());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// void Function<A>(Function x) Function()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(Function x) Function() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is void Function<A>(Function x) Function());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U92().runTests();
-  new U92<int>(tIsInt: true).runTests();
-  new U92<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type93_test.dart b/tests/language_2/function_type/function_type93_test.dart
deleted file mode 100644
index 93913ce2937..00000000000
--- a/tests/language_2/function_type/function_type93_test.dart
+++ /dev/null
@@ -1,874 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(core.List<core.int> x0);
-typedef F1<T> = core.List<core.int> Function(int y, [List<Function> x]);
-typedef F2<T> = Function(int x0, [Function x]);
-typedef F3<T> = int Function<A>(Function x);
-typedef F4<T> = int Function(int x, [int x1]) Function(int x);
-typedef F5<T> = int Function(int y, {List<Function> x}) Function(int x);
-typedef F6<T> = Function Function([int x]) Function(int x);
-typedef F7<T> = Function Function(List<Function> x1) Function(int x);
-typedef F8<T> = Function Function(int x, [List<T> x1]) Function(int x);
-typedef F9<T> = List<Function> Function(int x1, {Function x}) Function(int x);
-typedef F10<T> = List<Function> Function([List<T> x]) Function(int x);
-typedef F11<T> = core.List<core.int> Function(int y, [Function x]) Function(
-    int x);
-typedef F12<T> = core.List<core.int> Function(int x2, [core.List<core.int> x3])
-    Function(int x);
-typedef F13<T> = List<T> Function({int x}) Function(int x);
-typedef F14<T> = List<T> Function(core.List<core.int> x) Function(int x);
-typedef F15<T> = Function(int x1, [int x]) Function(int x);
-typedef F16<T> = Function([List<Function> x1]) Function(int x);
-typedef F17<T> = Function({List<T> x}) Function(int x);
-typedef F18<T> = void Function(int y, {Function x}) Function(int x);
-typedef F19<T> = void Function(int x1, [List<T> x]) Function(int x);
-typedef F20<T> = Function Function<A>(List<A> x) Function(int x);
-typedef F21<T> = Function<A>(int x) Function(int x);
-typedef F22<T> = void Function<A>(Function x) Function(int x);
-
-Function f0(core.List<core.int> x0) => null;
-core.List<core.int> f1(int y, [List<Function> x]) => null;
-f2(int x0, [Function x]) => null;
-int f3<A>(Function x) => null;
-int Function(int x, [int x0]) f4(int x) => null;
-int Function(int y, {List<Function> x}) f5(int x) => null;
-Function Function([int x]) f6(int x) => null;
-Function Function(List<Function> x0) f7(int x) => null;
-Function Function(int x, [List<int> x0]) f8(int x) => null;
-List<Function> Function(int x0, {Function x}) f9(int x) => null;
-List<Function> Function([List<int> x]) f10(int x) => null;
-core.List<core.int> Function(int y, [Function x]) f11(int x) => null;
-core.List<core.int> Function(int x0, [core.List<core.int> x1]) f12(int x) =>
-    null;
-List<int> Function({int x}) f13(int x) => null;
-List<int> Function(core.List<core.int> x) f14(int x) => null;
-Function(int x0, [int x]) f15(int x) => null;
-Function([List<Function> x0]) f16(int x) => null;
-Function({List<int> x}) f17(int x) => null;
-void Function(int y, {Function x}) f18(int x) => null;
-void Function(int x0, [List<int> x]) f19(int x) => null;
-Function Function<A>(List<A> x) f20(int x) => null;
-Function<A>(int x) f21(int x) => null;
-void Function<A>(Function x) f22(int x) => null;
-
-class U93<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(core.List<core.int> x0) x0;
-  core.List<core.int> Function(int y, [List<Function> x]) x1;
-  Function(int x0, [Function x]) x2;
-  int Function<A>(Function x) x3;
-  int Function(int x, [int x1]) Function(int x) x4;
-  int Function(int y, {List<Function> x}) Function(int x) x5;
-  Function Function([int x]) Function(int x) x6;
-  Function Function(List<Function> x1) Function(int x) x7;
-  Function Function(int x, [List<T> x1]) Function(int x) x8;
-  List<Function> Function(int x1, {Function x}) Function(int x) x9;
-  List<Function> Function([List<T> x]) Function(int x) x10;
-  core.List<core.int> Function(int y, [Function x]) Function(int x) x11;
-  core.List<core.int> Function(int x2, [core.List<core.int> x3]) Function(int x)
-      x12;
-  List<T> Function({int x}) Function(int x) x13;
-  List<T> Function(core.List<core.int> x) Function(int x) x14;
-  Function(int x1, [int x]) Function(int x) x15;
-  Function([List<Function> x1]) Function(int x) x16;
-  Function({List<T> x}) Function(int x) x17;
-  void Function(int y, {Function x}) Function(int x) x18;
-  void Function(int x1, [List<T> x]) Function(int x) x19;
-  Function Function<A>(List<A> x) Function(int x) x20;
-  Function<A>(int x) Function(int x) x21;
-  void Function<A>(Function x) Function(int x) x22;
-
-  U93({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(core.List<core.int> x0) => null;
-  core.List<core.int> m1(int y, [List<Function> x]) => null;
-  m2(int x0, [Function x]) => null;
-  int m3<A>(Function x) => null;
-  int Function(int x, [int x0]) m4(int x) => null;
-  int Function(int y, {List<Function> x}) m5(int x) => null;
-  Function Function([int x]) m6(int x) => null;
-  Function Function(List<Function> x0) m7(int x) => null;
-  Function Function(int x, [List<T> x0]) m8(int x) => null;
-  List<Function> Function(int x0, {Function x}) m9(int x) => null;
-  List<Function> Function([List<T> x]) m10(int x) => null;
-  core.List<core.int> Function(int y, [Function x]) m11(int x) => null;
-  core.List<core.int> Function(int x0, [core.List<core.int> x1]) m12(int x) =>
-      null;
-  List<T> Function({int x}) m13(int x) => null;
-  List<T> Function(core.List<core.int> x) m14(int x) => null;
-  Function(int x0, [int x]) m15(int x) => null;
-  Function([List<Function> x0]) m16(int x) => null;
-  Function({List<T> x}) m17(int x) => null;
-  void Function(int y, {Function x}) m18(int x) => null;
-  void Function(int x0, [List<T> x]) m19(int x) => null;
-  Function Function<A>(List<A> x) m20(int x) => null;
-  Function<A>(int x) m21(int x) => null;
-  void Function<A>(Function x) m22(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(core.List<core.int> x0)
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(core.List<core.int> x0) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(core.List<core.int> x0));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function(int y, [List<Function> x])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, [List<Function> x]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(
-        m1 is core.List<core.int> Function(int y, [List<Function> x]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// Function(int x0, [Function x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    Function(int x0, [Function x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is Function(int x0, [Function x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// int Function<A>(Function x)
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(Function x) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is int Function<A>(Function x));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// int Function(int x, [int x1]) Function(int x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function(int x, [int x1]) Function(int x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is int Function(int x, [int x1]) Function(int x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int y, {List<Function> x}) Function(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, {List<Function> x}) Function(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(
-        m5 is int Function(int y, {List<Function> x}) Function(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// Function Function([int x]) Function(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    Function Function([int x]) Function(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is Function Function([int x]) Function(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(List<Function> x1) Function(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(List<Function> x1) Function(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(List<Function> x1) Function(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x, [List<T> x1]) Function(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x, [List<T> x1]) Function(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x, [List<T> x1]) Function(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(int x1, {Function x}) Function(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, {Function x}) Function(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(
-        m9 is List<Function> Function(int x1, {Function x}) Function(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function([List<T> x]) Function(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([List<T> x]) Function(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function([List<T> x]) Function(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-    // The static function has its T always set to int.
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isFalse(f10 is F10<bool>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    Expect.isFalse(confuse(f10) is F10<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x10 = (f10 as dynamic);
-      });
-      Expect.throws(() {
-        x10 = confuse(f10);
-      });
-      Expect.throws(() {
-        l10 = (f10 as dynamic);
-      });
-      Expect.throws(() {
-        l10 = confuse(f10);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m10 is F10<int>);
-      Expect.equals(tIsBool, m10 is F10<bool>);
-      Expect.equals(tIsInt, confuse(m10) is F10<int>);
-      Expect.equals(tIsBool, confuse(m10) is F10<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int y, [Function x]) Function(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, [Function x]) Function(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(int y, [Function x])
-        Function(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x2, [core.List<core.int> x3]) Function(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x2, [core.List<core.int> x3]) Function(
-        int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x2,
-            [core.List<core.int> x3])
-        Function(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function({int x}) Function(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function({int x}) Function(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function({int x}) Function(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(core.List<core.int> x) Function(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(core.List<core.int> x) Function(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(
-        m14 is List<T> Function(core.List<core.int> x) Function(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// Function(int x1, [int x]) Function(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, [int x]) Function(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is Function(int x1, [int x]) Function(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-  }
-
-  /// Function([List<Function> x1]) Function(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function([List<Function> x1]) Function(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function([List<Function> x1]) Function(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function({List<T> x}) Function(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function({List<T> x}) Function(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function({List<T> x}) Function(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(int y, {Function x}) Function(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, {Function x}) Function(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int y, {Function x}) Function(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x1, [List<T> x]) Function(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, [List<T> x]) Function(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int x1, [List<T> x]) Function(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-    // The static function has its T always set to int.
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isFalse(f19 is F19<bool>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    Expect.isFalse(confuse(f19) is F19<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        x19 = confuse(f19);
-      });
-      Expect.throws(() {
-        l19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        l19 = confuse(f19);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m19 is F19<int>);
-      Expect.equals(tIsBool, m19 is F19<bool>);
-      Expect.equals(tIsInt, confuse(m19) is F19<int>);
-      Expect.equals(tIsBool, confuse(m19) is F19<bool>);
-    }
-  }
-
-  /// Function Function<A>(List<A> x) Function(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(List<A> x) Function(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is Function Function<A>(List<A> x) Function(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// Function<A>(int x) Function(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    Function<A>(int x) Function(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is Function<A>(int x) Function(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// void Function<A>(Function x) Function(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(Function x) Function(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is void Function<A>(Function x) Function(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U93().runTests();
-  new U93<int>(tIsInt: true).runTests();
-  new U93<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type94_test.dart b/tests/language_2/function_type/function_type94_test.dart
deleted file mode 100644
index d8c9432c5bd..00000000000
--- a/tests/language_2/function_type/function_type94_test.dart
+++ /dev/null
@@ -1,900 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function([core.List<core.int> x1]);
-typedef F1<T> = core.List<core.int> Function(List<Function> x0);
-typedef F2<T> = Function(int y, [Function x]);
-typedef F3<T> = int Function<A>(List<Function> x);
-typedef F4<T> = int Function(int x, [int x1]) Function<B extends core.int>();
-typedef F5<T> = int Function(int y, {List<Function> x})
-    Function<B extends core.int>();
-typedef F6<T> = Function Function([int x]) Function<B extends core.int>();
-typedef F7<T> = Function Function(List<Function> x1)
-    Function<B extends core.int>();
-typedef F8<T> = Function Function(int x, [List<T> x1])
-    Function<B extends core.int>();
-typedef F9<T> = List<Function> Function(int x1, {Function x})
-    Function<B extends core.int>();
-typedef F10<T> = List<Function> Function([List<T> x])
-    Function<B extends core.int>();
-typedef F11<T> = core.List<core.int> Function(int y, [Function x])
-    Function<B extends core.int>();
-typedef F12<T> = core.List<core.int> Function(int x2, [core.List<core.int> x3])
-    Function<B extends core.int>();
-typedef F13<T> = List<T> Function({int x}) Function<B extends core.int>();
-typedef F14<T> = List<T> Function(core.List<core.int> x)
-    Function<B extends core.int>();
-typedef F15<T> = Function(int x1, [int x]) Function<B extends core.int>();
-typedef F16<T> = Function([List<Function> x1]) Function<B extends core.int>();
-typedef F17<T> = Function({List<T> x}) Function<B extends core.int>();
-typedef F18<T> = void Function(int y, {Function x})
-    Function<B extends core.int>();
-typedef F19<T> = void Function(int x1, [List<T> x])
-    Function<B extends core.int>();
-typedef F20<T> = Function Function<A>(List<A> x) Function<B extends core.int>();
-typedef F21<T> = Function<A>(int x) Function<B extends core.int>();
-typedef F22<T> = void Function<A>(Function x) Function<B extends core.int>();
-
-Function f0([core.List<core.int> x0]) => null;
-core.List<core.int> f1(List<Function> x0) => null;
-f2(int y, [Function x]) => null;
-int f3<A>(List<Function> x) => null;
-int Function(int x, [int x0]) f4<B extends core.int>() => null;
-int Function(int y, {List<Function> x}) f5<B extends core.int>() => null;
-Function Function([int x]) f6<B extends core.int>() => null;
-Function Function(List<Function> x0) f7<B extends core.int>() => null;
-Function Function(int x, [List<int> x0]) f8<B extends core.int>() => null;
-List<Function> Function(int x0, {Function x}) f9<B extends core.int>() => null;
-List<Function> Function([List<int> x]) f10<B extends core.int>() => null;
-core.List<core.int> Function(int y, [Function x]) f11<B extends core.int>() =>
-    null;
-core.List<core.int> Function(int x0, [core.List<core.int> x1])
-    f12<B extends core.int>() => null;
-List<int> Function({int x}) f13<B extends core.int>() => null;
-List<int> Function(core.List<core.int> x) f14<B extends core.int>() => null;
-Function(int x0, [int x]) f15<B extends core.int>() => null;
-Function([List<Function> x0]) f16<B extends core.int>() => null;
-Function({List<int> x}) f17<B extends core.int>() => null;
-void Function(int y, {Function x}) f18<B extends core.int>() => null;
-void Function(int x0, [List<int> x]) f19<B extends core.int>() => null;
-Function Function<A>(List<A> x) f20<B extends core.int>() => null;
-Function<A>(int x) f21<B extends core.int>() => null;
-void Function<A>(Function x) f22<B extends core.int>() => null;
-
-class U94<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function([core.List<core.int> x1]) x0;
-  core.List<core.int> Function(List<Function> x0) x1;
-  Function(int y, [Function x]) x2;
-  int Function<A>(List<Function> x) x3;
-  int Function(int x, [int x1]) Function<B extends core.int>() x4;
-  int Function(int y, {List<Function> x}) Function<B extends core.int>() x5;
-  Function Function([int x]) Function<B extends core.int>() x6;
-  Function Function(List<Function> x1) Function<B extends core.int>() x7;
-  Function Function(int x, [List<T> x1]) Function<B extends core.int>() x8;
-  List<Function> Function(int x1, {Function x}) Function<B extends core.int>()
-      x9;
-  List<Function> Function([List<T> x]) Function<B extends core.int>() x10;
-  core.List<core.int> Function(int y, [Function x])
-      Function<B extends core.int>() x11;
-  core.List<core.int> Function(int x2, [core.List<core.int> x3])
-      Function<B extends core.int>() x12;
-  List<T> Function({int x}) Function<B extends core.int>() x13;
-  List<T> Function(core.List<core.int> x) Function<B extends core.int>() x14;
-  Function(int x1, [int x]) Function<B extends core.int>() x15;
-  Function([List<Function> x1]) Function<B extends core.int>() x16;
-  Function({List<T> x}) Function<B extends core.int>() x17;
-  void Function(int y, {Function x}) Function<B extends core.int>() x18;
-  void Function(int x1, [List<T> x]) Function<B extends core.int>() x19;
-  Function Function<A>(List<A> x) Function<B extends core.int>() x20;
-  Function<A>(int x) Function<B extends core.int>() x21;
-  void Function<A>(Function x) Function<B extends core.int>() x22;
-
-  U94({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0([core.List<core.int> x0]) => null;
-  core.List<core.int> m1(List<Function> x0) => null;
-  m2(int y, [Function x]) => null;
-  int m3<A>(List<Function> x) => null;
-  int Function(int x, [int x0]) m4<B extends core.int>() => null;
-  int Function(int y, {List<Function> x}) m5<B extends core.int>() => null;
-  Function Function([int x]) m6<B extends core.int>() => null;
-  Function Function(List<Function> x0) m7<B extends core.int>() => null;
-  Function Function(int x, [List<T> x0]) m8<B extends core.int>() => null;
-  List<Function> Function(int x0, {Function x}) m9<B extends core.int>() =>
-      null;
-  List<Function> Function([List<T> x]) m10<B extends core.int>() => null;
-  core.List<core.int> Function(int y, [Function x]) m11<B extends core.int>() =>
-      null;
-  core.List<core.int> Function(int x0, [core.List<core.int> x1])
-      m12<B extends core.int>() => null;
-  List<T> Function({int x}) m13<B extends core.int>() => null;
-  List<T> Function(core.List<core.int> x) m14<B extends core.int>() => null;
-  Function(int x0, [int x]) m15<B extends core.int>() => null;
-  Function([List<Function> x0]) m16<B extends core.int>() => null;
-  Function({List<T> x}) m17<B extends core.int>() => null;
-  void Function(int y, {Function x}) m18<B extends core.int>() => null;
-  void Function(int x0, [List<T> x]) m19<B extends core.int>() => null;
-  Function Function<A>(List<A> x) m20<B extends core.int>() => null;
-  Function<A>(int x) m21<B extends core.int>() => null;
-  void Function<A>(Function x) m22<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function([core.List<core.int> x1])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function([core.List<core.int> x1]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function([core.List<core.int> x1]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function(List<Function> x0)
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(List<Function> x0) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function(List<Function> x0));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// Function(int y, [Function x])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    Function(int y, [Function x]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is Function(int y, [Function x]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// int Function<A>(List<Function> x)
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(List<Function> x) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is int Function<A>(List<Function> x));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// int Function(int x, [int x1]) Function<B extends core.int>()
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function(int x, [int x1]) Function<B extends core.int>() l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(
-        m4 is int Function(int x, [int x1]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int y, {List<Function> x}) Function<B extends core.int>()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, {List<Function> x}) Function<B extends core.int>() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int y, {List<Function> x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// Function Function([int x]) Function<B extends core.int>()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    Function Function([int x]) Function<B extends core.int>() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is Function Function([int x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(List<Function> x1) Function<B extends core.int>()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(List<Function> x1) Function<B extends core.int>() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(List<Function> x1)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x, [List<T> x1]) Function<B extends core.int>()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x, [List<T> x1]) Function<B extends core.int>() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x, [List<T> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(int x1, {Function x}) Function<B extends core.int>()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, {Function x}) Function<B extends core.int>()
-        l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int x1, {Function x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function([List<T> x]) Function<B extends core.int>()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([List<T> x]) Function<B extends core.int>() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function([List<T> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-    // The static function has its T always set to int.
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isFalse(f10 is F10<bool>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    Expect.isFalse(confuse(f10) is F10<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x10 = (f10 as dynamic);
-      });
-      Expect.throws(() {
-        x10 = confuse(f10);
-      });
-      Expect.throws(() {
-        l10 = (f10 as dynamic);
-      });
-      Expect.throws(() {
-        l10 = confuse(f10);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m10 is F10<int>);
-      Expect.equals(tIsBool, m10 is F10<bool>);
-      Expect.equals(tIsInt, confuse(m10) is F10<int>);
-      Expect.equals(tIsBool, confuse(m10) is F10<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int y, [Function x]) Function<B extends core.int>()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, [Function x])
-        Function<B extends core.int>() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(int y, [Function x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x2, [core.List<core.int> x3]) Function<B extends core.int>()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x2, [core.List<core.int> x3])
-        Function<B extends core.int>() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x2,
-            [core.List<core.int> x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function({int x}) Function<B extends core.int>()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function({int x}) Function<B extends core.int>() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(
-        m13 is List<T> Function({int x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(core.List<core.int> x) Function<B extends core.int>()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(core.List<core.int> x) Function<B extends core.int>() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(core.List<core.int> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// Function(int x1, [int x]) Function<B extends core.int>()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, [int x]) Function<B extends core.int>() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(
-        m15 is Function(int x1, [int x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-  }
-
-  /// Function([List<Function> x1]) Function<B extends core.int>()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function([List<Function> x1]) Function<B extends core.int>() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(
-        m16 is Function([List<Function> x1]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function({List<T> x}) Function<B extends core.int>()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function({List<T> x}) Function<B extends core.int>() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function({List<T> x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(int y, {Function x}) Function<B extends core.int>()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, {Function x}) Function<B extends core.int>() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int y, {Function x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x1, [List<T> x]) Function<B extends core.int>()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, [List<T> x]) Function<B extends core.int>() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int x1, [List<T> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-    // The static function has its T always set to int.
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isFalse(f19 is F19<bool>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    Expect.isFalse(confuse(f19) is F19<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        x19 = confuse(f19);
-      });
-      Expect.throws(() {
-        l19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        l19 = confuse(f19);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m19 is F19<int>);
-      Expect.equals(tIsBool, m19 is F19<bool>);
-      Expect.equals(tIsInt, confuse(m19) is F19<int>);
-      Expect.equals(tIsBool, confuse(m19) is F19<bool>);
-    }
-  }
-
-  /// Function Function<A>(List<A> x) Function<B extends core.int>()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(List<A> x) Function<B extends core.int>() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(
-        m20 is Function Function<A>(List<A> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// Function<A>(int x) Function<B extends core.int>()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    Function<A>(int x) Function<B extends core.int>() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is Function<A>(int x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// void Function<A>(Function x) Function<B extends core.int>()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(Function x) Function<B extends core.int>() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(
-        m22 is void Function<A>(Function x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U94().runTests();
-  new U94<int>(tIsInt: true).runTests();
-  new U94<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type95_test.dart b/tests/language_2/function_type/function_type95_test.dart
deleted file mode 100644
index a4902c6f6e6..00000000000
--- a/tests/language_2/function_type/function_type95_test.dart
+++ /dev/null
@@ -1,917 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(int x1, [core.List<core.int> x2]);
-typedef F1<T> = core.List<core.int> Function([List<Function> x1]);
-typedef F2<T> = Function(Function x0);
-typedef F3<T> = int Function<A>(core.List<core.int> x);
-typedef F4<T> = int Function(int x, [int x1]) Function<B extends core.int>(
-    int x);
-typedef F5<T> = int Function(int y, {List<Function> x})
-    Function<B extends core.int>(int x);
-typedef F6<T> = Function Function([int x]) Function<B extends core.int>(int x);
-typedef F7<T> = Function Function(List<Function> x1)
-    Function<B extends core.int>(int x);
-typedef F8<T> = Function Function(int x, [List<T> x1])
-    Function<B extends core.int>(int x);
-typedef F9<T> = List<Function> Function(int x1, {Function x})
-    Function<B extends core.int>(int x);
-typedef F10<T> = List<Function> Function([List<T> x])
-    Function<B extends core.int>(int x);
-typedef F11<T> = core.List<core.int> Function(int y, [Function x])
-    Function<B extends core.int>(int x);
-typedef F12<T> = core.List<core.int> Function(int x2, [core.List<core.int> x3])
-    Function<B extends core.int>(int x);
-typedef F13<T> = List<T> Function({int x}) Function<B extends core.int>(int x);
-typedef F14<T> = List<T> Function(core.List<core.int> x)
-    Function<B extends core.int>(int x);
-typedef F15<T> = Function(int x1, [int x]) Function<B extends core.int>(int x);
-typedef F16<T> = Function([List<Function> x1]) Function<B extends core.int>(
-    int x);
-typedef F17<T> = Function({List<T> x}) Function<B extends core.int>(int x);
-typedef F18<T> = void Function(int y, {Function x})
-    Function<B extends core.int>(int x);
-typedef F19<T> = void Function(int x1, [List<T> x])
-    Function<B extends core.int>(int x);
-typedef F20<T> = Function Function<A>(List<A> x) Function<B extends core.int>(
-    int x);
-typedef F21<T> = Function<A>(int x) Function<B extends core.int>(int x);
-typedef F22<T> = void Function<A>(Function x) Function<B extends core.int>(
-    int x);
-
-Function f0(int x0, [core.List<core.int> x1]) => null;
-core.List<core.int> f1([List<Function> x0]) => null;
-f2(Function x0) => null;
-int f3<A>(core.List<core.int> x) => null;
-int Function(int x, [int x0]) f4<B extends core.int>(int x) => null;
-int Function(int y, {List<Function> x}) f5<B extends core.int>(int x) => null;
-Function Function([int x]) f6<B extends core.int>(int x) => null;
-Function Function(List<Function> x0) f7<B extends core.int>(int x) => null;
-Function Function(int x, [List<int> x0]) f8<B extends core.int>(int x) => null;
-List<Function> Function(int x0, {Function x}) f9<B extends core.int>(int x) =>
-    null;
-List<Function> Function([List<int> x]) f10<B extends core.int>(int x) => null;
-core.List<core.int> Function(int y, [Function x]) f11<B extends core.int>(
-        int x) =>
-    null;
-core.List<core.int> Function(int x0, [core.List<core.int> x1])
-    f12<B extends core.int>(int x) => null;
-List<int> Function({int x}) f13<B extends core.int>(int x) => null;
-List<int> Function(core.List<core.int> x) f14<B extends core.int>(int x) =>
-    null;
-Function(int x0, [int x]) f15<B extends core.int>(int x) => null;
-Function([List<Function> x0]) f16<B extends core.int>(int x) => null;
-Function({List<int> x}) f17<B extends core.int>(int x) => null;
-void Function(int y, {Function x}) f18<B extends core.int>(int x) => null;
-void Function(int x0, [List<int> x]) f19<B extends core.int>(int x) => null;
-Function Function<A>(List<A> x) f20<B extends core.int>(int x) => null;
-Function<A>(int x) f21<B extends core.int>(int x) => null;
-void Function<A>(Function x) f22<B extends core.int>(int x) => null;
-
-class U95<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(int x1, [core.List<core.int> x2]) x0;
-  core.List<core.int> Function([List<Function> x1]) x1;
-  Function(Function x0) x2;
-  int Function<A>(core.List<core.int> x) x3;
-  int Function(int x, [int x1]) Function<B extends core.int>(int x) x4;
-  int Function(int y, {List<Function> x}) Function<B extends core.int>(int x)
-      x5;
-  Function Function([int x]) Function<B extends core.int>(int x) x6;
-  Function Function(List<Function> x1) Function<B extends core.int>(int x) x7;
-  Function Function(int x, [List<T> x1]) Function<B extends core.int>(int x) x8;
-  List<Function> Function(int x1, {Function x}) Function<B extends core.int>(
-      int x) x9;
-  List<Function> Function([List<T> x]) Function<B extends core.int>(int x) x10;
-  core.List<core.int> Function(int y, [Function x])
-      Function<B extends core.int>(int x) x11;
-  core.List<core.int> Function(int x2, [core.List<core.int> x3])
-      Function<B extends core.int>(int x) x12;
-  List<T> Function({int x}) Function<B extends core.int>(int x) x13;
-  List<T> Function(core.List<core.int> x) Function<B extends core.int>(int x)
-      x14;
-  Function(int x1, [int x]) Function<B extends core.int>(int x) x15;
-  Function([List<Function> x1]) Function<B extends core.int>(int x) x16;
-  Function({List<T> x}) Function<B extends core.int>(int x) x17;
-  void Function(int y, {Function x}) Function<B extends core.int>(int x) x18;
-  void Function(int x1, [List<T> x]) Function<B extends core.int>(int x) x19;
-  Function Function<A>(List<A> x) Function<B extends core.int>(int x) x20;
-  Function<A>(int x) Function<B extends core.int>(int x) x21;
-  void Function<A>(Function x) Function<B extends core.int>(int x) x22;
-
-  U95({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(int x0, [core.List<core.int> x1]) => null;
-  core.List<core.int> m1([List<Function> x0]) => null;
-  m2(Function x0) => null;
-  int m3<A>(core.List<core.int> x) => null;
-  int Function(int x, [int x0]) m4<B extends core.int>(int x) => null;
-  int Function(int y, {List<Function> x}) m5<B extends core.int>(int x) => null;
-  Function Function([int x]) m6<B extends core.int>(int x) => null;
-  Function Function(List<Function> x0) m7<B extends core.int>(int x) => null;
-  Function Function(int x, [List<T> x0]) m8<B extends core.int>(int x) => null;
-  List<Function> Function(int x0, {Function x}) m9<B extends core.int>(int x) =>
-      null;
-  List<Function> Function([List<T> x]) m10<B extends core.int>(int x) => null;
-  core.List<core.int> Function(int y, [Function x]) m11<B extends core.int>(
-          int x) =>
-      null;
-  core.List<core.int> Function(int x0, [core.List<core.int> x1])
-      m12<B extends core.int>(int x) => null;
-  List<T> Function({int x}) m13<B extends core.int>(int x) => null;
-  List<T> Function(core.List<core.int> x) m14<B extends core.int>(int x) =>
-      null;
-  Function(int x0, [int x]) m15<B extends core.int>(int x) => null;
-  Function([List<Function> x0]) m16<B extends core.int>(int x) => null;
-  Function({List<T> x}) m17<B extends core.int>(int x) => null;
-  void Function(int y, {Function x}) m18<B extends core.int>(int x) => null;
-  void Function(int x0, [List<T> x]) m19<B extends core.int>(int x) => null;
-  Function Function<A>(List<A> x) m20<B extends core.int>(int x) => null;
-  Function<A>(int x) m21<B extends core.int>(int x) => null;
-  void Function<A>(Function x) m22<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(int x1, [core.List<core.int> x2])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, [core.List<core.int> x2]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(int x1, [core.List<core.int> x2]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function([List<Function> x1])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function([List<Function> x1]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function([List<Function> x1]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// Function(Function x0)
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    Function(Function x0) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is Function(Function x0));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// int Function<A>(core.List<core.int> x)
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(core.List<core.int> x) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is int Function<A>(core.List<core.int> x));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// int Function(int x, [int x1]) Function<B extends core.int>(int x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function(int x, [int x1]) Function<B extends core.int>(int x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is int Function(int x, [int x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(int y, {List<Function> x}) Function<B extends core.int>(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, {List<Function> x}) Function<B extends core.int>(int x)
-        l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(int y, {List<Function> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// Function Function([int x]) Function<B extends core.int>(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    Function Function([int x]) Function<B extends core.int>(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is Function Function([int x]) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function(List<Function> x1) Function<B extends core.int>(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function(List<Function> x1) Function<B extends core.int>(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function(List<Function> x1)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function(int x, [List<T> x1]) Function<B extends core.int>(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x, [List<T> x1]) Function<B extends core.int>(int x)
-        l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function(int x, [List<T> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(int x1, {Function x}) Function<B extends core.int>(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, {Function x}) Function<B extends core.int>(
-        int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int x1, {Function x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function([List<T> x]) Function<B extends core.int>(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([List<T> x]) Function<B extends core.int>(int x)
-        l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function([List<T> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-    // The static function has its T always set to int.
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isFalse(f10 is F10<bool>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    Expect.isFalse(confuse(f10) is F10<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x10 = (f10 as dynamic);
-      });
-      Expect.throws(() {
-        x10 = confuse(f10);
-      });
-      Expect.throws(() {
-        l10 = (f10 as dynamic);
-      });
-      Expect.throws(() {
-        l10 = confuse(f10);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m10 is F10<int>);
-      Expect.equals(tIsBool, m10 is F10<bool>);
-      Expect.equals(tIsInt, confuse(m10) is F10<int>);
-      Expect.equals(tIsBool, confuse(m10) is F10<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int y, [Function x]) Function<B extends core.int>(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, [Function x])
-        Function<B extends core.int>(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(int y, [Function x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x2, [core.List<core.int> x3]) Function<B extends core.int>(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x2, [core.List<core.int> x3])
-        Function<B extends core.int>(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x2,
-            [core.List<core.int> x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function({int x}) Function<B extends core.int>(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function({int x}) Function<B extends core.int>(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(
-        m13 is List<T> Function({int x}) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function(core.List<core.int> x) Function<B extends core.int>(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(core.List<core.int> x) Function<B extends core.int>(int x)
-        l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function(core.List<core.int> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// Function(int x1, [int x]) Function<B extends core.int>(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, [int x]) Function<B extends core.int>(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(
-        m15 is Function(int x1, [int x]) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-  }
-
-  /// Function([List<Function> x1]) Function<B extends core.int>(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function([List<Function> x1]) Function<B extends core.int>(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function([List<Function> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function({List<T> x}) Function<B extends core.int>(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function({List<T> x}) Function<B extends core.int>(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(
-        m17 is Function({List<T> x}) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(int y, {Function x}) Function<B extends core.int>(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, {Function x}) Function<B extends core.int>(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int y, {Function x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int x1, [List<T> x]) Function<B extends core.int>(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int x1, [List<T> x]) Function<B extends core.int>(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int x1, [List<T> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-    // The static function has its T always set to int.
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isFalse(f19 is F19<bool>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    Expect.isFalse(confuse(f19) is F19<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        x19 = confuse(f19);
-      });
-      Expect.throws(() {
-        l19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        l19 = confuse(f19);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m19 is F19<int>);
-      Expect.equals(tIsBool, m19 is F19<bool>);
-      Expect.equals(tIsInt, confuse(m19) is F19<int>);
-      Expect.equals(tIsBool, confuse(m19) is F19<bool>);
-    }
-  }
-
-  /// Function Function<A>(List<A> x) Function<B extends core.int>(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    Function Function<A>(List<A> x) Function<B extends core.int>(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is Function Function<A>(List<A> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// Function<A>(int x) Function<B extends core.int>(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    Function<A>(int x) Function<B extends core.int>(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(
-        m21 is Function<A>(int x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// void Function<A>(Function x) Function<B extends core.int>(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(Function x) Function<B extends core.int>(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is void Function<A>(Function x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U95().runTests();
-  new U95<int>(tIsInt: true).runTests();
-  new U95<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type96_test.dart b/tests/language_2/function_type/function_type96_test.dart
deleted file mode 100644
index f6beecd1091..00000000000
--- a/tests/language_2/function_type/function_type96_test.dart
+++ /dev/null
@@ -1,893 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(int x, [core.List<core.int> x2]);
-typedef F1<T> = core.List<core.int> Function(int x1, [List<Function> x2]);
-typedef F2<T> = Function([Function x1]);
-typedef F3<T> = int Function<A>(List<T> x);
-typedef F4<T> = int Function({int x}) Function();
-typedef F5<T> = int Function(core.List<core.int> x) Function();
-typedef F6<T> = Function Function(int x0, [int x]) Function();
-typedef F7<T> = Function Function([List<Function> x1]) Function();
-typedef F8<T> = Function Function({List<T> x}) Function();
-typedef F9<T> = List<Function> Function(int y, {Function x}) Function();
-typedef F10<T> = List<Function> Function(int x0, [List<T> x]) Function();
-typedef F11<T> = core.List<core.int> Function(Function x0) Function();
-typedef F12<T> = core.List<core.int> Function(int x, [core.List<core.int> x2])
-    Function();
-typedef F13<T> = List<T> Function(int x0, {int x}) Function();
-typedef F14<T> = List<T> Function([core.List<core.int> x]) Function();
-typedef F15<T> = Function(int y, [int x]) Function();
-typedef F16<T> = Function(int x1, [List<Function> x2]) Function();
-typedef F17<T> = Function(int x0, {List<T> x}) Function();
-typedef F18<T> = void Function(List<Function> x) Function();
-typedef F19<T> = void Function(int y, [List<T> x]) Function();
-typedef F20<T> = List<Function> Function<A>(int x) Function();
-typedef F21<T> = Function<A>(Function x) Function();
-typedef F22<T> = void Function<A>(List<Function> x) Function();
-
-Function f0(int x, [core.List<core.int> x0]) => null;
-core.List<core.int> f1(int x0, [List<Function> x1]) => null;
-f2([Function x0]) => null;
-int f3<A>(List<int> x) => null;
-int Function({int x}) f4() => null;
-int Function(core.List<core.int> x) f5() => null;
-Function Function(int x0, [int x]) f6() => null;
-Function Function([List<Function> x0]) f7() => null;
-Function Function({List<int> x}) f8() => null;
-List<Function> Function(int y, {Function x}) f9() => null;
-List<Function> Function(int x0, [List<int> x]) f10() => null;
-core.List<core.int> Function(Function x0) f11() => null;
-core.List<core.int> Function(int x, [core.List<core.int> x0]) f12() => null;
-List<int> Function(int x0, {int x}) f13() => null;
-List<int> Function([core.List<core.int> x]) f14() => null;
-Function(int y, [int x]) f15() => null;
-Function(int x0, [List<Function> x1]) f16() => null;
-Function(int x0, {List<int> x}) f17() => null;
-void Function(List<Function> x) f18() => null;
-void Function(int y, [List<int> x]) f19() => null;
-List<Function> Function<A>(int x) f20() => null;
-Function<A>(Function x) f21() => null;
-void Function<A>(List<Function> x) f22() => null;
-
-class U96<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(int x, [core.List<core.int> x2]) x0;
-  core.List<core.int> Function(int x1, [List<Function> x2]) x1;
-  Function([Function x1]) x2;
-  int Function<A>(List<T> x) x3;
-  int Function({int x}) Function() x4;
-  int Function(core.List<core.int> x) Function() x5;
-  Function Function(int x0, [int x]) Function() x6;
-  Function Function([List<Function> x1]) Function() x7;
-  Function Function({List<T> x}) Function() x8;
-  List<Function> Function(int y, {Function x}) Function() x9;
-  List<Function> Function(int x0, [List<T> x]) Function() x10;
-  core.List<core.int> Function(Function x0) Function() x11;
-  core.List<core.int> Function(int x, [core.List<core.int> x2]) Function() x12;
-  List<T> Function(int x0, {int x}) Function() x13;
-  List<T> Function([core.List<core.int> x]) Function() x14;
-  Function(int y, [int x]) Function() x15;
-  Function(int x1, [List<Function> x2]) Function() x16;
-  Function(int x0, {List<T> x}) Function() x17;
-  void Function(List<Function> x) Function() x18;
-  void Function(int y, [List<T> x]) Function() x19;
-  List<Function> Function<A>(int x) Function() x20;
-  Function<A>(Function x) Function() x21;
-  void Function<A>(List<Function> x) Function() x22;
-
-  U96({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(int x, [core.List<core.int> x0]) => null;
-  core.List<core.int> m1(int x0, [List<Function> x1]) => null;
-  m2([Function x0]) => null;
-  int m3<A>(List<T> x) => null;
-  int Function({int x}) m4() => null;
-  int Function(core.List<core.int> x) m5() => null;
-  Function Function(int x0, [int x]) m6() => null;
-  Function Function([List<Function> x0]) m7() => null;
-  Function Function({List<T> x}) m8() => null;
-  List<Function> Function(int y, {Function x}) m9() => null;
-  List<Function> Function(int x0, [List<T> x]) m10() => null;
-  core.List<core.int> Function(Function x0) m11() => null;
-  core.List<core.int> Function(int x, [core.List<core.int> x0]) m12() => null;
-  List<T> Function(int x0, {int x}) m13() => null;
-  List<T> Function([core.List<core.int> x]) m14() => null;
-  Function(int y, [int x]) m15() => null;
-  Function(int x0, [List<Function> x1]) m16() => null;
-  Function(int x0, {List<T> x}) m17() => null;
-  void Function(List<Function> x) m18() => null;
-  void Function(int y, [List<T> x]) m19() => null;
-  List<Function> Function<A>(int x) m20() => null;
-  Function<A>(Function x) m21() => null;
-  void Function<A>(List<Function> x) m22() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(int x, [core.List<core.int> x2])
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x, [core.List<core.int> x2]) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(int x, [core.List<core.int> x2]));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function(int x1, [List<Function> x2])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x1, [List<Function> x2]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(
-        m1 is core.List<core.int> Function(int x1, [List<Function> x2]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// Function([Function x1])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    Function([Function x1]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is Function([Function x1]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// int Function<A>(List<T> x)
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(List<T> x) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is int Function<A>(List<T> x));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-    // The static function has its T always set to int.
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isFalse(f3 is F3<bool>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    Expect.isFalse(confuse(f3) is F3<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        x3 = confuse(f3);
-      });
-      Expect.throws(() {
-        l3 = (f3 as dynamic);
-      });
-      Expect.throws(() {
-        l3 = confuse(f3);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m3 is F3<int>);
-      Expect.equals(true, m3 is F3<bool>);
-      Expect.equals(true, confuse(m3) is F3<int>);
-      Expect.equals(true, confuse(m3) is F3<bool>);
-    }
-  }
-
-  /// int Function({int x}) Function()
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function({int x}) Function() l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is int Function({int x}) Function());
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(core.List<core.int> x) Function()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(core.List<core.int> x) Function() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(core.List<core.int> x) Function());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// Function Function(int x0, [int x]) Function()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x0, [int x]) Function() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is Function Function(int x0, [int x]) Function());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function([List<Function> x1]) Function()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function([List<Function> x1]) Function() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function([List<Function> x1]) Function());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function({List<T> x}) Function()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function({List<T> x}) Function() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function({List<T> x}) Function());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(int y, {Function x}) Function()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, {Function x}) Function() l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(
-        m9 is List<Function> Function(int y, {Function x}) Function());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x0, [List<T> x]) Function()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x0, [List<T> x]) Function() l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(
-        m10 is List<Function> Function(int x0, [List<T> x]) Function());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-    // The static function has its T always set to int.
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isFalse(f10 is F10<bool>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    Expect.isFalse(confuse(f10) is F10<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x10 = (f10 as dynamic);
-      });
-      Expect.throws(() {
-        x10 = confuse(f10);
-      });
-      Expect.throws(() {
-        l10 = (f10 as dynamic);
-      });
-      Expect.throws(() {
-        l10 = confuse(f10);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m10 is F10<int>);
-      Expect.equals(tIsBool, m10 is F10<bool>);
-      Expect.equals(tIsInt, confuse(m10) is F10<int>);
-      Expect.equals(tIsBool, confuse(m10) is F10<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(Function x0) Function()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(Function x0) Function() l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(Function x0) Function());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x, [core.List<core.int> x2]) Function()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x, [core.List<core.int> x2]) Function()
-        l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x,
-            [core.List<core.int> x2])
-        Function());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int x0, {int x}) Function()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x0, {int x}) Function() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function(int x0, {int x}) Function());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function([core.List<core.int> x]) Function()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([core.List<core.int> x]) Function() l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function([core.List<core.int> x]) Function());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// Function(int y, [int x]) Function()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    Function(int y, [int x]) Function() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is Function(int y, [int x]) Function());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-  }
-
-  /// Function(int x1, [List<Function> x2]) Function()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, [List<Function> x2]) Function() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x1, [List<Function> x2]) Function());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x0, {List<T> x}) Function()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x0, {List<T> x}) Function() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x0, {List<T> x}) Function());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(List<Function> x) Function()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(List<Function> x) Function() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(List<Function> x) Function());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int y, [List<T> x]) Function()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, [List<T> x]) Function() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int y, [List<T> x]) Function());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-    // The static function has its T always set to int.
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isFalse(f19 is F19<bool>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    Expect.isFalse(confuse(f19) is F19<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        x19 = confuse(f19);
-      });
-      Expect.throws(() {
-        l19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        l19 = confuse(f19);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m19 is F19<int>);
-      Expect.equals(tIsBool, m19 is F19<bool>);
-      Expect.equals(tIsInt, confuse(m19) is F19<int>);
-      Expect.equals(tIsBool, confuse(m19) is F19<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(int x) Function()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(int x) Function() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is List<Function> Function<A>(int x) Function());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// Function<A>(Function x) Function()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    Function<A>(Function x) Function() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is Function<A>(Function x) Function());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// void Function<A>(List<Function> x) Function()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(List<Function> x) Function() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is void Function<A>(List<Function> x) Function());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U96().runTests();
-  new U96<int>(tIsInt: true).runTests();
-  new U96<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type97_test.dart b/tests/language_2/function_type/function_type97_test.dart
deleted file mode 100644
index 1e90015d417..00000000000
--- a/tests/language_2/function_type/function_type97_test.dart
+++ /dev/null
@@ -1,873 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function({core.List<core.int> x});
-typedef F1<T> = core.List<core.int> Function(int x, [List<Function> x2]);
-typedef F2<T> = Function(int x1, [Function x2]);
-typedef F3<T> = int Function<A>();
-typedef F4<T> = int Function({int x}) Function(int x);
-typedef F5<T> = int Function(core.List<core.int> x) Function(int x);
-typedef F6<T> = Function Function(int x1, [int x]) Function(int x);
-typedef F7<T> = Function Function([List<Function> x1]) Function(int x);
-typedef F8<T> = Function Function({List<T> x}) Function(int x);
-typedef F9<T> = List<Function> Function(int y, {Function x}) Function(int x);
-typedef F10<T> = List<Function> Function(int x1, [List<T> x]) Function(int x);
-typedef F11<T> = core.List<core.int> Function(Function x1) Function(int x);
-typedef F12<T> = core.List<core.int> Function(int x, [core.List<core.int> x1])
-    Function(int x);
-typedef F13<T> = List<T> Function(int x1, {int x}) Function(int x);
-typedef F14<T> = List<T> Function([core.List<core.int> x]) Function(int x);
-typedef F15<T> = Function(int y, [int x]) Function(int x);
-typedef F16<T> = Function(int x2, [List<Function> x3]) Function(int x);
-typedef F17<T> = Function(int x1, {List<T> x}) Function(int x);
-typedef F18<T> = void Function(List<Function> x) Function(int x);
-typedef F19<T> = void Function(int y, [List<T> x]) Function(int x);
-typedef F20<T> = List<Function> Function<A>(int x) Function(int x);
-typedef F21<T> = Function<A>(Function x) Function(int x);
-typedef F22<T> = void Function<A>(List<Function> x) Function(int x);
-
-Function f0({core.List<core.int> x}) => null;
-core.List<core.int> f1(int x, [List<Function> x0]) => null;
-f2(int x0, [Function x1]) => null;
-int f3<A>() => null;
-int Function({int x}) f4(int x) => null;
-int Function(core.List<core.int> x) f5(int x) => null;
-Function Function(int x0, [int x]) f6(int x) => null;
-Function Function([List<Function> x0]) f7(int x) => null;
-Function Function({List<int> x}) f8(int x) => null;
-List<Function> Function(int y, {Function x}) f9(int x) => null;
-List<Function> Function(int x0, [List<int> x]) f10(int x) => null;
-core.List<core.int> Function(Function x0) f11(int x) => null;
-core.List<core.int> Function(int x, [core.List<core.int> x0]) f12(int x) =>
-    null;
-List<int> Function(int x0, {int x}) f13(int x) => null;
-List<int> Function([core.List<core.int> x]) f14(int x) => null;
-Function(int y, [int x]) f15(int x) => null;
-Function(int x0, [List<Function> x1]) f16(int x) => null;
-Function(int x0, {List<int> x}) f17(int x) => null;
-void Function(List<Function> x) f18(int x) => null;
-void Function(int y, [List<int> x]) f19(int x) => null;
-List<Function> Function<A>(int x) f20(int x) => null;
-Function<A>(Function x) f21(int x) => null;
-void Function<A>(List<Function> x) f22(int x) => null;
-
-class U97<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function({core.List<core.int> x}) x0;
-  core.List<core.int> Function(int x, [List<Function> x2]) x1;
-  Function(int x1, [Function x2]) x2;
-  int Function<A>() x3;
-  int Function({int x}) Function(int x) x4;
-  int Function(core.List<core.int> x) Function(int x) x5;
-  Function Function(int x1, [int x]) Function(int x) x6;
-  Function Function([List<Function> x1]) Function(int x) x7;
-  Function Function({List<T> x}) Function(int x) x8;
-  List<Function> Function(int y, {Function x}) Function(int x) x9;
-  List<Function> Function(int x1, [List<T> x]) Function(int x) x10;
-  core.List<core.int> Function(Function x1) Function(int x) x11;
-  core.List<core.int> Function(int x, [core.List<core.int> x1]) Function(int x)
-      x12;
-  List<T> Function(int x1, {int x}) Function(int x) x13;
-  List<T> Function([core.List<core.int> x]) Function(int x) x14;
-  Function(int y, [int x]) Function(int x) x15;
-  Function(int x2, [List<Function> x3]) Function(int x) x16;
-  Function(int x1, {List<T> x}) Function(int x) x17;
-  void Function(List<Function> x) Function(int x) x18;
-  void Function(int y, [List<T> x]) Function(int x) x19;
-  List<Function> Function<A>(int x) Function(int x) x20;
-  Function<A>(Function x) Function(int x) x21;
-  void Function<A>(List<Function> x) Function(int x) x22;
-
-  U97({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0({core.List<core.int> x}) => null;
-  core.List<core.int> m1(int x, [List<Function> x0]) => null;
-  m2(int x0, [Function x1]) => null;
-  int m3<A>() => null;
-  int Function({int x}) m4(int x) => null;
-  int Function(core.List<core.int> x) m5(int x) => null;
-  Function Function(int x0, [int x]) m6(int x) => null;
-  Function Function([List<Function> x0]) m7(int x) => null;
-  Function Function({List<T> x}) m8(int x) => null;
-  List<Function> Function(int y, {Function x}) m9(int x) => null;
-  List<Function> Function(int x0, [List<T> x]) m10(int x) => null;
-  core.List<core.int> Function(Function x0) m11(int x) => null;
-  core.List<core.int> Function(int x, [core.List<core.int> x0]) m12(int x) =>
-      null;
-  List<T> Function(int x0, {int x}) m13(int x) => null;
-  List<T> Function([core.List<core.int> x]) m14(int x) => null;
-  Function(int y, [int x]) m15(int x) => null;
-  Function(int x0, [List<Function> x1]) m16(int x) => null;
-  Function(int x0, {List<T> x}) m17(int x) => null;
-  void Function(List<Function> x) m18(int x) => null;
-  void Function(int y, [List<T> x]) m19(int x) => null;
-  List<Function> Function<A>(int x) m20(int x) => null;
-  Function<A>(Function x) m21(int x) => null;
-  void Function<A>(List<Function> x) m22(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function({core.List<core.int> x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function({core.List<core.int> x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function({core.List<core.int> x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function(int x, [List<Function> x2])
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x, [List<Function> x2]) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(
-        m1 is core.List<core.int> Function(int x, [List<Function> x2]));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// Function(int x1, [Function x2])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, [Function x2]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is Function(int x1, [Function x2]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// int Function<A>()
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    int Function<A>() l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is int Function<A>());
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// int Function({int x}) Function(int x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function({int x}) Function(int x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is int Function({int x}) Function(int x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(core.List<core.int> x) Function(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(core.List<core.int> x) Function(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(core.List<core.int> x) Function(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// Function Function(int x1, [int x]) Function(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, [int x]) Function(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is Function Function(int x1, [int x]) Function(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function([List<Function> x1]) Function(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function([List<Function> x1]) Function(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function([List<Function> x1]) Function(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function({List<T> x}) Function(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function({List<T> x}) Function(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function({List<T> x}) Function(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(int y, {Function x}) Function(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, {Function x}) Function(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(
-        m9 is List<Function> Function(int y, {Function x}) Function(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x1, [List<T> x]) Function(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, [List<T> x]) Function(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(
-        m10 is List<Function> Function(int x1, [List<T> x]) Function(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-    // The static function has its T always set to int.
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isFalse(f10 is F10<bool>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    Expect.isFalse(confuse(f10) is F10<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x10 = (f10 as dynamic);
-      });
-      Expect.throws(() {
-        x10 = confuse(f10);
-      });
-      Expect.throws(() {
-        l10 = (f10 as dynamic);
-      });
-      Expect.throws(() {
-        l10 = confuse(f10);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m10 is F10<int>);
-      Expect.equals(tIsBool, m10 is F10<bool>);
-      Expect.equals(tIsInt, confuse(m10) is F10<int>);
-      Expect.equals(tIsBool, confuse(m10) is F10<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(Function x1) Function(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(Function x1) Function(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(
-        m11 is core.List<core.int> Function(Function x1) Function(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x, [core.List<core.int> x1]) Function(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x, [core.List<core.int> x1]) Function(
-        int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x,
-            [core.List<core.int> x1])
-        Function(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int x1, {int x}) Function(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, {int x}) Function(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function(int x1, {int x}) Function(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function([core.List<core.int> x]) Function(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([core.List<core.int> x]) Function(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(
-        m14 is List<T> Function([core.List<core.int> x]) Function(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// Function(int y, [int x]) Function(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    Function(int y, [int x]) Function(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(m15 is Function(int y, [int x]) Function(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-  }
-
-  /// Function(int x2, [List<Function> x3]) Function(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x2, [List<Function> x3]) Function(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x2, [List<Function> x3]) Function(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x1, {List<T> x}) Function(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, {List<T> x}) Function(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x1, {List<T> x}) Function(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(List<Function> x) Function(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(List<Function> x) Function(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(List<Function> x) Function(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int y, [List<T> x]) Function(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, [List<T> x]) Function(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int y, [List<T> x]) Function(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-    // The static function has its T always set to int.
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isFalse(f19 is F19<bool>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    Expect.isFalse(confuse(f19) is F19<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        x19 = confuse(f19);
-      });
-      Expect.throws(() {
-        l19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        l19 = confuse(f19);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m19 is F19<int>);
-      Expect.equals(tIsBool, m19 is F19<bool>);
-      Expect.equals(tIsInt, confuse(m19) is F19<int>);
-      Expect.equals(tIsBool, confuse(m19) is F19<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(int x) Function(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(int x) Function(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is List<Function> Function<A>(int x) Function(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// Function<A>(Function x) Function(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    Function<A>(Function x) Function(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is Function<A>(Function x) Function(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// void Function<A>(List<Function> x) Function(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(List<Function> x) Function(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is void Function<A>(List<Function> x) Function(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U97().runTests();
-  new U97<int>(tIsInt: true).runTests();
-  new U97<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type98_test.dart b/tests/language_2/function_type/function_type98_test.dart
deleted file mode 100644
index 212d5fe35a4..00000000000
--- a/tests/language_2/function_type/function_type98_test.dart
+++ /dev/null
@@ -1,905 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(int x0, {core.List<core.int> x});
-typedef F1<T> = core.List<core.int> Function({List<Function> x});
-typedef F2<T> = Function(int x, [Function x2]);
-typedef F3<T> = int Function<A>(A x);
-typedef F4<T> = int Function({int x}) Function<B extends core.int>();
-typedef F5<T> = int Function(core.List<core.int> x)
-    Function<B extends core.int>();
-typedef F6<T> = Function Function(int x1, [int x])
-    Function<B extends core.int>();
-typedef F7<T> = Function Function([List<Function> x1])
-    Function<B extends core.int>();
-typedef F8<T> = Function Function({List<T> x}) Function<B extends core.int>();
-typedef F9<T> = List<Function> Function(int y, {Function x})
-    Function<B extends core.int>();
-typedef F10<T> = List<Function> Function(int x1, [List<T> x])
-    Function<B extends core.int>();
-typedef F11<T> = core.List<core.int> Function(Function x1)
-    Function<B extends core.int>();
-typedef F12<T> = core.List<core.int> Function(int x, [core.List<core.int> x1])
-    Function<B extends core.int>();
-typedef F13<T> = List<T> Function(int x1, {int x})
-    Function<B extends core.int>();
-typedef F14<T> = List<T> Function([core.List<core.int> x])
-    Function<B extends core.int>();
-typedef F15<T> = Function(int y, [int x]) Function<B extends core.int>();
-typedef F16<T> = Function(int x2, [List<Function> x3])
-    Function<B extends core.int>();
-typedef F17<T> = Function(int x1, {List<T> x}) Function<B extends core.int>();
-typedef F18<T> = void Function(List<Function> x) Function<B extends core.int>();
-typedef F19<T> = void Function(int y, [List<T> x])
-    Function<B extends core.int>();
-typedef F20<T> = List<Function> Function<A>(int x)
-    Function<B extends core.int>();
-typedef F21<T> = Function<A>(Function x) Function<B extends core.int>();
-typedef F22<T> = void Function<A>(List<Function> x)
-    Function<B extends core.int>();
-
-Function f0(int x0, {core.List<core.int> x}) => null;
-core.List<core.int> f1({List<Function> x}) => null;
-f2(int x, [Function x0]) => null;
-int f3<A>(A x) => null;
-int Function({int x}) f4<B extends core.int>() => null;
-int Function(core.List<core.int> x) f5<B extends core.int>() => null;
-Function Function(int x0, [int x]) f6<B extends core.int>() => null;
-Function Function([List<Function> x0]) f7<B extends core.int>() => null;
-Function Function({List<int> x}) f8<B extends core.int>() => null;
-List<Function> Function(int y, {Function x}) f9<B extends core.int>() => null;
-List<Function> Function(int x0, [List<int> x]) f10<B extends core.int>() =>
-    null;
-core.List<core.int> Function(Function x0) f11<B extends core.int>() => null;
-core.List<core.int> Function(int x, [core.List<core.int> x0])
-    f12<B extends core.int>() => null;
-List<int> Function(int x0, {int x}) f13<B extends core.int>() => null;
-List<int> Function([core.List<core.int> x]) f14<B extends core.int>() => null;
-Function(int y, [int x]) f15<B extends core.int>() => null;
-Function(int x0, [List<Function> x1]) f16<B extends core.int>() => null;
-Function(int x0, {List<int> x}) f17<B extends core.int>() => null;
-void Function(List<Function> x) f18<B extends core.int>() => null;
-void Function(int y, [List<int> x]) f19<B extends core.int>() => null;
-List<Function> Function<A>(int x) f20<B extends core.int>() => null;
-Function<A>(Function x) f21<B extends core.int>() => null;
-void Function<A>(List<Function> x) f22<B extends core.int>() => null;
-
-class U98<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(int x0, {core.List<core.int> x}) x0;
-  core.List<core.int> Function({List<Function> x}) x1;
-  Function(int x, [Function x2]) x2;
-  int Function<A>(A x) x3;
-  int Function({int x}) Function<B extends core.int>() x4;
-  int Function(core.List<core.int> x) Function<B extends core.int>() x5;
-  Function Function(int x1, [int x]) Function<B extends core.int>() x6;
-  Function Function([List<Function> x1]) Function<B extends core.int>() x7;
-  Function Function({List<T> x}) Function<B extends core.int>() x8;
-  List<Function> Function(int y, {Function x}) Function<B extends core.int>()
-      x9;
-  List<Function> Function(int x1, [List<T> x]) Function<B extends core.int>()
-      x10;
-  core.List<core.int> Function(Function x1) Function<B extends core.int>() x11;
-  core.List<core.int> Function(int x, [core.List<core.int> x1])
-      Function<B extends core.int>() x12;
-  List<T> Function(int x1, {int x}) Function<B extends core.int>() x13;
-  List<T> Function([core.List<core.int> x]) Function<B extends core.int>() x14;
-  Function(int y, [int x]) Function<B extends core.int>() x15;
-  Function(int x2, [List<Function> x3]) Function<B extends core.int>() x16;
-  Function(int x1, {List<T> x}) Function<B extends core.int>() x17;
-  void Function(List<Function> x) Function<B extends core.int>() x18;
-  void Function(int y, [List<T> x]) Function<B extends core.int>() x19;
-  List<Function> Function<A>(int x) Function<B extends core.int>() x20;
-  Function<A>(Function x) Function<B extends core.int>() x21;
-  void Function<A>(List<Function> x) Function<B extends core.int>() x22;
-
-  U98({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(int x0, {core.List<core.int> x}) => null;
-  core.List<core.int> m1({List<Function> x}) => null;
-  m2(int x, [Function x0]) => null;
-  int m3<A>(A x) => null;
-  int Function({int x}) m4<B extends core.int>() => null;
-  int Function(core.List<core.int> x) m5<B extends core.int>() => null;
-  Function Function(int x0, [int x]) m6<B extends core.int>() => null;
-  Function Function([List<Function> x0]) m7<B extends core.int>() => null;
-  Function Function({List<T> x}) m8<B extends core.int>() => null;
-  List<Function> Function(int y, {Function x}) m9<B extends core.int>() => null;
-  List<Function> Function(int x0, [List<T> x]) m10<B extends core.int>() =>
-      null;
-  core.List<core.int> Function(Function x0) m11<B extends core.int>() => null;
-  core.List<core.int> Function(int x, [core.List<core.int> x0])
-      m12<B extends core.int>() => null;
-  List<T> Function(int x0, {int x}) m13<B extends core.int>() => null;
-  List<T> Function([core.List<core.int> x]) m14<B extends core.int>() => null;
-  Function(int y, [int x]) m15<B extends core.int>() => null;
-  Function(int x0, [List<Function> x1]) m16<B extends core.int>() => null;
-  Function(int x0, {List<T> x}) m17<B extends core.int>() => null;
-  void Function(List<Function> x) m18<B extends core.int>() => null;
-  void Function(int y, [List<T> x]) m19<B extends core.int>() => null;
-  List<Function> Function<A>(int x) m20<B extends core.int>() => null;
-  Function<A>(Function x) m21<B extends core.int>() => null;
-  void Function<A>(List<Function> x) m22<B extends core.int>() => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(int x0, {core.List<core.int> x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x0, {core.List<core.int> x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(int x0, {core.List<core.int> x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function({List<Function> x})
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function({List<Function> x}) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is core.List<core.int> Function({List<Function> x}));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// Function(int x, [Function x2])
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    Function(int x, [Function x2]) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is Function(int x, [Function x2]));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// int Function<A>(A x)
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(A x) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is int Function<A>(A x));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// int Function({int x}) Function<B extends core.int>()
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function({int x}) Function<B extends core.int>() l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is int Function({int x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(core.List<core.int> x) Function<B extends core.int>()
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(core.List<core.int> x) Function<B extends core.int>() l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(core.List<core.int> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// Function Function(int x1, [int x]) Function<B extends core.int>()
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, [int x]) Function<B extends core.int>() l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is Function Function(int x1, [int x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function([List<Function> x1]) Function<B extends core.int>()
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function([List<Function> x1]) Function<B extends core.int>() l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function([List<Function> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function({List<T> x}) Function<B extends core.int>()
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function({List<T> x}) Function<B extends core.int>() l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(
-        m8 is Function Function({List<T> x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(int y, {Function x}) Function<B extends core.int>()
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, {Function x}) Function<B extends core.int>()
-        l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int y, {Function x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x1, [List<T> x]) Function<B extends core.int>()
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, [List<T> x]) Function<B extends core.int>()
-        l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x1, [List<T> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-    // The static function has its T always set to int.
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isFalse(f10 is F10<bool>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    Expect.isFalse(confuse(f10) is F10<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x10 = (f10 as dynamic);
-      });
-      Expect.throws(() {
-        x10 = confuse(f10);
-      });
-      Expect.throws(() {
-        l10 = (f10 as dynamic);
-      });
-      Expect.throws(() {
-        l10 = confuse(f10);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m10 is F10<int>);
-      Expect.equals(tIsBool, m10 is F10<bool>);
-      Expect.equals(tIsInt, confuse(m10) is F10<int>);
-      Expect.equals(tIsBool, confuse(m10) is F10<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(Function x1) Function<B extends core.int>()
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(Function x1) Function<B extends core.int>()
-        l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(Function x1)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x, [core.List<core.int> x1]) Function<B extends core.int>()
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x, [core.List<core.int> x1])
-        Function<B extends core.int>() l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x,
-            [core.List<core.int> x1])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int x1, {int x}) Function<B extends core.int>()
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, {int x}) Function<B extends core.int>() l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function(int x1, {int x})
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function([core.List<core.int> x]) Function<B extends core.int>()
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([core.List<core.int> x]) Function<B extends core.int>()
-        l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function([core.List<core.int> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// Function(int y, [int x]) Function<B extends core.int>()
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    Function(int y, [int x]) Function<B extends core.int>() l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(
-        m15 is Function(int y, [int x]) Function<B extends core.int>());
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-  }
-
-  /// Function(int x2, [List<Function> x3]) Function<B extends core.int>()
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x2, [List<Function> x3]) Function<B extends core.int>() l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x2, [List<Function> x3])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x1, {List<T> x}) Function<B extends core.int>()
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, {List<T> x}) Function<B extends core.int>() l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(
-        m17 is Function(int x1, {List<T> x}) Function<B extends core.int>());
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(List<Function> x) Function<B extends core.int>()
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(List<Function> x) Function<B extends core.int>() l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(
-        m18 is void Function(List<Function> x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int y, [List<T> x]) Function<B extends core.int>()
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, [List<T> x]) Function<B extends core.int>() l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int y, [List<T> x])
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-    // The static function has its T always set to int.
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isFalse(f19 is F19<bool>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    Expect.isFalse(confuse(f19) is F19<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        x19 = confuse(f19);
-      });
-      Expect.throws(() {
-        l19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        l19 = confuse(f19);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m19 is F19<int>);
-      Expect.equals(tIsBool, m19 is F19<bool>);
-      Expect.equals(tIsInt, confuse(m19) is F19<int>);
-      Expect.equals(tIsBool, confuse(m19) is F19<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(int x) Function<B extends core.int>()
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(int x) Function<B extends core.int>() l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is List<Function> Function<A>(int x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// Function<A>(Function x) Function<B extends core.int>()
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    Function<A>(Function x) Function<B extends core.int>() l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(
-        m21 is Function<A>(Function x) Function<B extends core.int>());
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// void Function<A>(List<Function> x) Function<B extends core.int>()
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(List<Function> x) Function<B extends core.int>() l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is void Function<A>(List<Function> x)
-        Function<B extends core.int>());
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U98().runTests();
-  new U98<int>(tIsInt: true).runTests();
-  new U98<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type99_test.dart b/tests/language_2/function_type/function_type99_test.dart
deleted file mode 100644
index 0bceaaaeac5..00000000000
--- a/tests/language_2/function_type/function_type99_test.dart
+++ /dev/null
@@ -1,920 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = Function Function(int y, {core.List<core.int> x});
-typedef F1<T> = core.List<core.int> Function(int x0, {List<Function> x});
-typedef F2<T> = Function({Function x});
-typedef F3<T> = int Function<A>(List<A> x);
-typedef F4<T> = int Function({int x}) Function<B extends core.int>(int x);
-typedef F5<T> = int Function(core.List<core.int> x)
-    Function<B extends core.int>(int x);
-typedef F6<T> = Function Function(int x1, [int x]) Function<B extends core.int>(
-    int x);
-typedef F7<T> = Function Function([List<Function> x1])
-    Function<B extends core.int>(int x);
-typedef F8<T> = Function Function({List<T> x}) Function<B extends core.int>(
-    int x);
-typedef F9<T> = List<Function> Function(int y, {Function x})
-    Function<B extends core.int>(int x);
-typedef F10<T> = List<Function> Function(int x1, [List<T> x])
-    Function<B extends core.int>(int x);
-typedef F11<T> = core.List<core.int> Function(Function x1)
-    Function<B extends core.int>(int x);
-typedef F12<T> = core.List<core.int> Function(int x, [core.List<core.int> x1])
-    Function<B extends core.int>(int x);
-typedef F13<T> = List<T> Function(int x1, {int x}) Function<B extends core.int>(
-    int x);
-typedef F14<T> = List<T> Function([core.List<core.int> x])
-    Function<B extends core.int>(int x);
-typedef F15<T> = Function(int y, [int x]) Function<B extends core.int>(int x);
-typedef F16<T> = Function(int x2, [List<Function> x3])
-    Function<B extends core.int>(int x);
-typedef F17<T> = Function(int x1, {List<T> x}) Function<B extends core.int>(
-    int x);
-typedef F18<T> = void Function(List<Function> x) Function<B extends core.int>(
-    int x);
-typedef F19<T> = void Function(int y, [List<T> x]) Function<B extends core.int>(
-    int x);
-typedef F20<T> = List<Function> Function<A>(int x) Function<B extends core.int>(
-    int x);
-typedef F21<T> = Function<A>(Function x) Function<B extends core.int>(int x);
-typedef F22<T> = void Function<A>(List<Function> x)
-    Function<B extends core.int>(int x);
-
-Function f0(int y, {core.List<core.int> x}) => null;
-core.List<core.int> f1(int x0, {List<Function> x}) => null;
-f2({Function x}) => null;
-int f3<A>(List<A> x) => null;
-int Function({int x}) f4<B extends core.int>(int x) => null;
-int Function(core.List<core.int> x) f5<B extends core.int>(int x) => null;
-Function Function(int x0, [int x]) f6<B extends core.int>(int x) => null;
-Function Function([List<Function> x0]) f7<B extends core.int>(int x) => null;
-Function Function({List<int> x}) f8<B extends core.int>(int x) => null;
-List<Function> Function(int y, {Function x}) f9<B extends core.int>(int x) =>
-    null;
-List<Function> Function(int x0, [List<int> x]) f10<B extends core.int>(int x) =>
-    null;
-core.List<core.int> Function(Function x0) f11<B extends core.int>(int x) =>
-    null;
-core.List<core.int> Function(int x, [core.List<core.int> x0])
-    f12<B extends core.int>(int x) => null;
-List<int> Function(int x0, {int x}) f13<B extends core.int>(int x) => null;
-List<int> Function([core.List<core.int> x]) f14<B extends core.int>(int x) =>
-    null;
-Function(int y, [int x]) f15<B extends core.int>(int x) => null;
-Function(int x0, [List<Function> x1]) f16<B extends core.int>(int x) => null;
-Function(int x0, {List<int> x}) f17<B extends core.int>(int x) => null;
-void Function(List<Function> x) f18<B extends core.int>(int x) => null;
-void Function(int y, [List<int> x]) f19<B extends core.int>(int x) => null;
-List<Function> Function<A>(int x) f20<B extends core.int>(int x) => null;
-Function<A>(Function x) f21<B extends core.int>(int x) => null;
-void Function<A>(List<Function> x) f22<B extends core.int>(int x) => null;
-
-class U99<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  Function Function(int y, {core.List<core.int> x}) x0;
-  core.List<core.int> Function(int x0, {List<Function> x}) x1;
-  Function({Function x}) x2;
-  int Function<A>(List<A> x) x3;
-  int Function({int x}) Function<B extends core.int>(int x) x4;
-  int Function(core.List<core.int> x) Function<B extends core.int>(int x) x5;
-  Function Function(int x1, [int x]) Function<B extends core.int>(int x) x6;
-  Function Function([List<Function> x1]) Function<B extends core.int>(int x) x7;
-  Function Function({List<T> x}) Function<B extends core.int>(int x) x8;
-  List<Function> Function(int y, {Function x}) Function<B extends core.int>(
-      int x) x9;
-  List<Function> Function(int x1, [List<T> x]) Function<B extends core.int>(
-      int x) x10;
-  core.List<core.int> Function(Function x1) Function<B extends core.int>(int x)
-      x11;
-  core.List<core.int> Function(int x, [core.List<core.int> x1])
-      Function<B extends core.int>(int x) x12;
-  List<T> Function(int x1, {int x}) Function<B extends core.int>(int x) x13;
-  List<T> Function([core.List<core.int> x]) Function<B extends core.int>(int x)
-      x14;
-  Function(int y, [int x]) Function<B extends core.int>(int x) x15;
-  Function(int x2, [List<Function> x3]) Function<B extends core.int>(int x) x16;
-  Function(int x1, {List<T> x}) Function<B extends core.int>(int x) x17;
-  void Function(List<Function> x) Function<B extends core.int>(int x) x18;
-  void Function(int y, [List<T> x]) Function<B extends core.int>(int x) x19;
-  List<Function> Function<A>(int x) Function<B extends core.int>(int x) x20;
-  Function<A>(Function x) Function<B extends core.int>(int x) x21;
-  void Function<A>(List<Function> x) Function<B extends core.int>(int x) x22;
-
-  U99({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  Function m0(int y, {core.List<core.int> x}) => null;
-  core.List<core.int> m1(int x0, {List<Function> x}) => null;
-  m2({Function x}) => null;
-  int m3<A>(List<A> x) => null;
-  int Function({int x}) m4<B extends core.int>(int x) => null;
-  int Function(core.List<core.int> x) m5<B extends core.int>(int x) => null;
-  Function Function(int x0, [int x]) m6<B extends core.int>(int x) => null;
-  Function Function([List<Function> x0]) m7<B extends core.int>(int x) => null;
-  Function Function({List<T> x}) m8<B extends core.int>(int x) => null;
-  List<Function> Function(int y, {Function x}) m9<B extends core.int>(int x) =>
-      null;
-  List<Function> Function(int x0, [List<T> x]) m10<B extends core.int>(int x) =>
-      null;
-  core.List<core.int> Function(Function x0) m11<B extends core.int>(int x) =>
-      null;
-  core.List<core.int> Function(int x, [core.List<core.int> x0])
-      m12<B extends core.int>(int x) => null;
-  List<T> Function(int x0, {int x}) m13<B extends core.int>(int x) => null;
-  List<T> Function([core.List<core.int> x]) m14<B extends core.int>(int x) =>
-      null;
-  Function(int y, [int x]) m15<B extends core.int>(int x) => null;
-  Function(int x0, [List<Function> x1]) m16<B extends core.int>(int x) => null;
-  Function(int x0, {List<T> x}) m17<B extends core.int>(int x) => null;
-  void Function(List<Function> x) m18<B extends core.int>(int x) => null;
-  void Function(int y, [List<T> x]) m19<B extends core.int>(int x) => null;
-  List<Function> Function<A>(int x) m20<B extends core.int>(int x) => null;
-  Function<A>(Function x) m21<B extends core.int>(int x) => null;
-  void Function<A>(List<Function> x) m22<B extends core.int>(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-  }
-
-  /// Function Function(int y, {core.List<core.int> x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    Function Function(int y, {core.List<core.int> x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is Function Function(int y, {core.List<core.int> x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// core.List<core.int> Function(int x0, {List<Function> x})
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x0, {List<Function> x}) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(
-        m1 is core.List<core.int> Function(int x0, {List<Function> x}));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-  }
-
-  /// Function({Function x})
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    Function({Function x}) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is Function({Function x}));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// int Function<A>(List<A> x)
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    int Function<A>(List<A> x) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is int Function<A>(List<A> x));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// int Function({int x}) Function<B extends core.int>(int x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    int Function({int x}) Function<B extends core.int>(int x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(
-        m4 is int Function({int x}) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(core.List<core.int> x) Function<B extends core.int>(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(core.List<core.int> x) Function<B extends core.int>(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(core.List<core.int> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// Function Function(int x1, [int x]) Function<B extends core.int>(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x1, [int x]) Function<B extends core.int>(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(m6 is Function Function(int x1, [int x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function([List<Function> x1]) Function<B extends core.int>(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function([List<Function> x1]) Function<B extends core.int>(int x)
-        l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function([List<Function> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function({List<T> x}) Function<B extends core.int>(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function({List<T> x}) Function<B extends core.int>(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function({List<T> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-    // The static function has its T always set to int.
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isFalse(f8 is F8<bool>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    Expect.isFalse(confuse(f8) is F8<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        x8 = confuse(f8);
-      });
-      Expect.throws(() {
-        l8 = (f8 as dynamic);
-      });
-      Expect.throws(() {
-        l8 = confuse(f8);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m8 is F8<int>);
-      Expect.equals(tIsBool, m8 is F8<bool>);
-      Expect.equals(tIsInt, confuse(m8) is F8<int>);
-      Expect.equals(tIsBool, confuse(m8) is F8<bool>);
-    }
-  }
-
-  /// List<Function> Function(int y, {Function x}) Function<B extends core.int>(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int y, {Function x}) Function<B extends core.int>(
-        int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is List<Function> Function(int y, {Function x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x1, [List<T> x]) Function<B extends core.int>(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, [List<T> x]) Function<B extends core.int>(
-        int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x1, [List<T> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-    // The static function has its T always set to int.
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isFalse(f10 is F10<bool>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    Expect.isFalse(confuse(f10) is F10<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x10 = (f10 as dynamic);
-      });
-      Expect.throws(() {
-        x10 = confuse(f10);
-      });
-      Expect.throws(() {
-        l10 = (f10 as dynamic);
-      });
-      Expect.throws(() {
-        l10 = confuse(f10);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m10 is F10<int>);
-      Expect.equals(tIsBool, m10 is F10<bool>);
-      Expect.equals(tIsInt, confuse(m10) is F10<int>);
-      Expect.equals(tIsBool, confuse(m10) is F10<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(Function x1) Function<B extends core.int>(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(Function x1) Function<B extends core.int>(
-        int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is core.List<core.int> Function(Function x1)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-  }
-
-  /// core.List<core.int> Function(int x, [core.List<core.int> x1]) Function<B extends core.int>(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x, [core.List<core.int> x1])
-        Function<B extends core.int>(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x,
-            [core.List<core.int> x1])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// List<T> Function(int x1, {int x}) Function<B extends core.int>(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(int x1, {int x}) Function<B extends core.int>(int x) l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is List<T> Function(int x1, {int x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-    // The static function has its T always set to int.
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isFalse(f13 is F13<bool>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    Expect.isFalse(confuse(f13) is F13<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        x13 = confuse(f13);
-      });
-      Expect.throws(() {
-        l13 = (f13 as dynamic);
-      });
-      Expect.throws(() {
-        l13 = confuse(f13);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m13 is F13<int>);
-      Expect.equals(tIsBool, m13 is F13<bool>);
-      Expect.equals(tIsInt, confuse(m13) is F13<int>);
-      Expect.equals(tIsBool, confuse(m13) is F13<bool>);
-    }
-  }
-
-  /// List<T> Function([core.List<core.int> x]) Function<B extends core.int>(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([core.List<core.int> x]) Function<B extends core.int>(
-        int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function([core.List<core.int> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// Function(int y, [int x]) Function<B extends core.int>(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    Function(int y, [int x]) Function<B extends core.int>(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(
-        m15 is Function(int y, [int x]) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-  }
-
-  /// Function(int x2, [List<Function> x3]) Function<B extends core.int>(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x2, [List<Function> x3]) Function<B extends core.int>(int x)
-        l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x2, [List<Function> x3])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x1, {List<T> x}) Function<B extends core.int>(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, {List<T> x}) Function<B extends core.int>(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x1, {List<T> x})
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-    // The static function has its T always set to int.
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isFalse(f17 is F17<bool>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    Expect.isFalse(confuse(f17) is F17<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        x17 = confuse(f17);
-      });
-      Expect.throws(() {
-        l17 = (f17 as dynamic);
-      });
-      Expect.throws(() {
-        l17 = confuse(f17);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m17 is F17<int>);
-      Expect.equals(tIsBool, m17 is F17<bool>);
-      Expect.equals(tIsInt, confuse(m17) is F17<int>);
-      Expect.equals(tIsBool, confuse(m17) is F17<bool>);
-    }
-  }
-
-  /// void Function(List<Function> x) Function<B extends core.int>(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(List<Function> x) Function<B extends core.int>(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(List<Function> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int y, [List<T> x]) Function<B extends core.int>(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, [List<T> x]) Function<B extends core.int>(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(m19 is void Function(int y, [List<T> x])
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-    // The static function has its T always set to int.
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isFalse(f19 is F19<bool>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    Expect.isFalse(confuse(f19) is F19<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        x19 = confuse(f19);
-      });
-      Expect.throws(() {
-        l19 = (f19 as dynamic);
-      });
-      Expect.throws(() {
-        l19 = confuse(f19);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m19 is F19<int>);
-      Expect.equals(tIsBool, m19 is F19<bool>);
-      Expect.equals(tIsInt, confuse(m19) is F19<int>);
-      Expect.equals(tIsBool, confuse(m19) is F19<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(int x) Function<B extends core.int>(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(int x) Function<B extends core.int>(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is List<Function> Function<A>(int x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-  }
-
-  /// Function<A>(Function x) Function<B extends core.int>(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    Function<A>(Function x) Function<B extends core.int>(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(
-        m21 is Function<A>(Function x) Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// void Function<A>(List<Function> x) Function<B extends core.int>(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    void Function<A>(List<Function> x) Function<B extends core.int>(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is void Function<A>(List<Function> x)
-        Function<B extends core.int>(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-  }
-}
-
-void main() {
-  new U99().runTests();
-  new U99<int>(tIsInt: true).runTests();
-  new U99<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/function_type9_test.dart b/tests/language_2/function_type/function_type9_test.dart
deleted file mode 100644
index e447cac8019..00000000000
--- a/tests/language_2/function_type/function_type9_test.dart
+++ /dev/null
@@ -1,905 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-
-typedef F0<T> = int Function(int x0, {int x});
-typedef F1<T> = Function Function(int x0, {List<T> x});
-typedef F2<T> = core.List<core.int> Function({core.List<core.int> x});
-typedef F3<T> = Function(int x, [List<Function> x2]);
-typedef F4<T> = List<Function> Function<A>(Function x);
-typedef F5<T> = int Function(Function x) Function(int x);
-typedef F6<T> = int Function(int y, [core.List<core.int> x]) Function(int x);
-typedef F7<T> = Function Function([int x1]) Function(int x);
-typedef F8<T> = Function Function({List<Function> x}) Function(int x);
-typedef F9<T> = Function Function() Function(int x);
-typedef F10<T> = List<Function> Function(int x1, [List<Function> x]) Function(
-    int x);
-typedef F11<T> = List<Function> Function([List<T> x1]) Function(int x);
-typedef F12<T> = core.List<core.int> Function(int x, [Function x1]) Function(
-    int x);
-typedef F13<T> = core.List<core.int> Function(int y, {core.List<core.int> x})
-    Function(int x);
-typedef F14<T> = List<T> Function([Function x]) Function(int x);
-typedef F15<T> = List<T> Function(core.List<core.int> x1) Function(int x);
-typedef F16<T> = Function(int x2, [int x3]) Function(int x);
-typedef F17<T> = Function(int x1, {List<Function> x}) Function(int x);
-typedef F18<T> = void Function(int x) Function(int x);
-typedef F19<T> = void Function(int y, [List<Function> x]) Function(int x);
-typedef F20<T> = void Function(int x2, [List<T> x3]) Function(int x);
-typedef F21<T> = List<Function> Function<A>(core.List<core.int> x) Function(
-    int x);
-typedef F22<T> = Function<A>(List<T> x) Function(int x);
-typedef F23<T> = void Function<A>() Function(int x);
-
-int f0(int x0, {int x}) => null;
-Function f1(int x0, {List<int> x}) => null;
-core.List<core.int> f2({core.List<core.int> x}) => null;
-f3(int x, [List<Function> x0]) => null;
-List<Function> f4<A>(Function x) => null;
-int Function(Function x) f5(int x) => null;
-int Function(int y, [core.List<core.int> x]) f6(int x) => null;
-Function Function([int x0]) f7(int x) => null;
-Function Function({List<Function> x}) f8(int x) => null;
-Function Function() f9(int x) => null;
-List<Function> Function(int x0, [List<Function> x]) f10(int x) => null;
-List<Function> Function([List<int> x0]) f11(int x) => null;
-core.List<core.int> Function(int x, [Function x0]) f12(int x) => null;
-core.List<core.int> Function(int y, {core.List<core.int> x}) f13(int x) => null;
-List<int> Function([Function x]) f14(int x) => null;
-List<int> Function(core.List<core.int> x0) f15(int x) => null;
-Function(int x0, [int x1]) f16(int x) => null;
-Function(int x0, {List<Function> x}) f17(int x) => null;
-void Function(int x) f18(int x) => null;
-void Function(int y, [List<Function> x]) f19(int x) => null;
-void Function(int x0, [List<int> x1]) f20(int x) => null;
-List<Function> Function<A>(core.List<core.int> x) f21(int x) => null;
-Function<A>(List<int> x) f22(int x) => null;
-void Function<A>() f23(int x) => null;
-
-class U9<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-  int Function(int x0, {int x}) x0;
-  Function Function(int x0, {List<T> x}) x1;
-  core.List<core.int> Function({core.List<core.int> x}) x2;
-  Function(int x, [List<Function> x2]) x3;
-  List<Function> Function<A>(Function x) x4;
-  int Function(Function x) Function(int x) x5;
-  int Function(int y, [core.List<core.int> x]) Function(int x) x6;
-  Function Function([int x1]) Function(int x) x7;
-  Function Function({List<Function> x}) Function(int x) x8;
-  Function Function() Function(int x) x9;
-  List<Function> Function(int x1, [List<Function> x]) Function(int x) x10;
-  List<Function> Function([List<T> x1]) Function(int x) x11;
-  core.List<core.int> Function(int x, [Function x1]) Function(int x) x12;
-  core.List<core.int> Function(int y, {core.List<core.int> x}) Function(int x)
-      x13;
-  List<T> Function([Function x]) Function(int x) x14;
-  List<T> Function(core.List<core.int> x1) Function(int x) x15;
-  Function(int x2, [int x3]) Function(int x) x16;
-  Function(int x1, {List<Function> x}) Function(int x) x17;
-  void Function(int x) Function(int x) x18;
-  void Function(int y, [List<Function> x]) Function(int x) x19;
-  void Function(int x2, [List<T> x3]) Function(int x) x20;
-  List<Function> Function<A>(core.List<core.int> x) Function(int x) x21;
-  Function<A>(List<T> x) Function(int x) x22;
-  void Function<A>() Function(int x) x23;
-
-  U9({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-  int m0(int x0, {int x}) => null;
-  Function m1(int x0, {List<T> x}) => null;
-  core.List<core.int> m2({core.List<core.int> x}) => null;
-  m3(int x, [List<Function> x0]) => null;
-  List<Function> m4<A>(Function x) => null;
-  int Function(Function x) m5(int x) => null;
-  int Function(int y, [core.List<core.int> x]) m6(int x) => null;
-  Function Function([int x0]) m7(int x) => null;
-  Function Function({List<Function> x}) m8(int x) => null;
-  Function Function() m9(int x) => null;
-  List<Function> Function(int x0, [List<Function> x]) m10(int x) => null;
-  List<Function> Function([List<T> x0]) m11(int x) => null;
-  core.List<core.int> Function(int x, [Function x0]) m12(int x) => null;
-  core.List<core.int> Function(int y, {core.List<core.int> x}) m13(int x) =>
-      null;
-  List<T> Function([Function x]) m14(int x) => null;
-  List<T> Function(core.List<core.int> x0) m15(int x) => null;
-  Function(int x0, [int x1]) m16(int x) => null;
-  Function(int x0, {List<Function> x}) m17(int x) => null;
-  void Function(int x) m18(int x) => null;
-  void Function(int y, [List<Function> x]) m19(int x) => null;
-  void Function(int x0, [List<T> x1]) m20(int x) => null;
-  List<Function> Function<A>(core.List<core.int> x) m21(int x) => null;
-  Function<A>(List<T> x) m22(int x) => null;
-  void Function<A>() m23(int x) => null;
-
-  runTests() {
-    testF0();
-    testF1();
-    testF2();
-    testF3();
-    testF4();
-    testF5();
-    testF6();
-    testF7();
-    testF8();
-    testF9();
-    testF10();
-    testF11();
-    testF12();
-    testF13();
-    testF14();
-    testF15();
-    testF16();
-    testF17();
-    testF18();
-    testF19();
-    testF20();
-    testF21();
-    testF22();
-    testF23();
-  }
-
-  /// int Function(int x0, {int x})
-  void testF0() {
-    Expect.isTrue(f0 is F0<int>);
-    Expect.isTrue(confuse(f0) is F0<int>);
-    // In checked mode, verifies the type.
-    int Function(int x0, {int x}) l0;
-    // The static function f0 sets `T` to `int`.
-    if (tIsInt) {
-      x0 = f0 as dynamic;
-      l0 = f0 as dynamic;
-      x0 = confuse(f0);
-      l0 = confuse(f0);
-    }
-
-    Expect.isTrue(m0 is F0<T>);
-    Expect.isTrue(m0 is int Function(int x0, {int x}));
-    Expect.isTrue(confuse(m0) is F0<T>);
-    // In checked mode, verifies the type.
-    x0 = m0;
-    l0 = m0;
-    x0 = confuse(m0);
-    l0 = confuse(m0);
-  }
-
-  /// Function Function(int x0, {List<T> x})
-  void testF1() {
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    // In checked mode, verifies the type.
-    Function Function(int x0, {List<T> x}) l1;
-    // The static function f1 sets `T` to `int`.
-    if (tIsInt) {
-      x1 = f1 as dynamic;
-      l1 = f1 as dynamic;
-      x1 = confuse(f1);
-      l1 = confuse(f1);
-    }
-
-    Expect.isTrue(m1 is F1<T>);
-    Expect.isTrue(m1 is Function Function(int x0, {List<T> x}));
-    Expect.isTrue(confuse(m1) is F1<T>);
-    // In checked mode, verifies the type.
-    x1 = m1;
-    l1 = m1;
-    x1 = confuse(m1);
-    l1 = confuse(m1);
-    // The static function has its T always set to int.
-    Expect.isTrue(f1 is F1<int>);
-    Expect.isFalse(f1 is F1<bool>);
-    Expect.isTrue(confuse(f1) is F1<int>);
-    Expect.isFalse(confuse(f1) is F1<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        x1 = confuse(f1);
-      });
-      Expect.throws(() {
-        l1 = (f1 as dynamic);
-      });
-      Expect.throws(() {
-        l1 = confuse(f1);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(true, m1 is F1<int>);
-      Expect.equals(true, m1 is F1<bool>);
-      Expect.equals(true, confuse(m1) is F1<int>);
-      Expect.equals(true, confuse(m1) is F1<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function({core.List<core.int> x})
-  void testF2() {
-    Expect.isTrue(f2 is F2<int>);
-    Expect.isTrue(confuse(f2) is F2<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function({core.List<core.int> x}) l2;
-    // The static function f2 sets `T` to `int`.
-    if (tIsInt) {
-      x2 = f2 as dynamic;
-      l2 = f2 as dynamic;
-      x2 = confuse(f2);
-      l2 = confuse(f2);
-    }
-
-    Expect.isTrue(m2 is F2<T>);
-    Expect.isTrue(m2 is core.List<core.int> Function({core.List<core.int> x}));
-    Expect.isTrue(confuse(m2) is F2<T>);
-    // In checked mode, verifies the type.
-    x2 = m2;
-    l2 = m2;
-    x2 = confuse(m2);
-    l2 = confuse(m2);
-  }
-
-  /// Function(int x, [List<Function> x2])
-  void testF3() {
-    Expect.isTrue(f3 is F3<int>);
-    Expect.isTrue(confuse(f3) is F3<int>);
-    // In checked mode, verifies the type.
-    Function(int x, [List<Function> x2]) l3;
-    // The static function f3 sets `T` to `int`.
-    if (tIsInt) {
-      x3 = f3 as dynamic;
-      l3 = f3 as dynamic;
-      x3 = confuse(f3);
-      l3 = confuse(f3);
-    }
-
-    Expect.isTrue(m3 is F3<T>);
-    Expect.isTrue(m3 is Function(int x, [List<Function> x2]));
-    Expect.isTrue(confuse(m3) is F3<T>);
-    // In checked mode, verifies the type.
-    x3 = m3;
-    l3 = m3;
-    x3 = confuse(m3);
-    l3 = confuse(m3);
-  }
-
-  /// List<Function> Function<A>(Function x)
-  void testF4() {
-    Expect.isTrue(f4 is F4<int>);
-    Expect.isTrue(confuse(f4) is F4<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(Function x) l4;
-    // The static function f4 sets `T` to `int`.
-    if (tIsInt) {
-      x4 = f4 as dynamic;
-      l4 = f4 as dynamic;
-      x4 = confuse(f4);
-      l4 = confuse(f4);
-    }
-
-    Expect.isTrue(m4 is F4<T>);
-    Expect.isTrue(m4 is List<Function> Function<A>(Function x));
-    Expect.isTrue(confuse(m4) is F4<T>);
-    // In checked mode, verifies the type.
-    x4 = m4;
-    l4 = m4;
-    x4 = confuse(m4);
-    l4 = confuse(m4);
-  }
-
-  /// int Function(Function x) Function(int x)
-  void testF5() {
-    Expect.isTrue(f5 is F5<int>);
-    Expect.isTrue(confuse(f5) is F5<int>);
-    // In checked mode, verifies the type.
-    int Function(Function x) Function(int x) l5;
-    // The static function f5 sets `T` to `int`.
-    if (tIsInt) {
-      x5 = f5 as dynamic;
-      l5 = f5 as dynamic;
-      x5 = confuse(f5);
-      l5 = confuse(f5);
-    }
-
-    Expect.isTrue(m5 is F5<T>);
-    Expect.isTrue(m5 is int Function(Function x) Function(int x));
-    Expect.isTrue(confuse(m5) is F5<T>);
-    // In checked mode, verifies the type.
-    x5 = m5;
-    l5 = m5;
-    x5 = confuse(m5);
-    l5 = confuse(m5);
-  }
-
-  /// int Function(int y, [core.List<core.int> x]) Function(int x)
-  void testF6() {
-    Expect.isTrue(f6 is F6<int>);
-    Expect.isTrue(confuse(f6) is F6<int>);
-    // In checked mode, verifies the type.
-    int Function(int y, [core.List<core.int> x]) Function(int x) l6;
-    // The static function f6 sets `T` to `int`.
-    if (tIsInt) {
-      x6 = f6 as dynamic;
-      l6 = f6 as dynamic;
-      x6 = confuse(f6);
-      l6 = confuse(f6);
-    }
-
-    Expect.isTrue(m6 is F6<T>);
-    Expect.isTrue(
-        m6 is int Function(int y, [core.List<core.int> x]) Function(int x));
-    Expect.isTrue(confuse(m6) is F6<T>);
-    // In checked mode, verifies the type.
-    x6 = m6;
-    l6 = m6;
-    x6 = confuse(m6);
-    l6 = confuse(m6);
-  }
-
-  /// Function Function([int x1]) Function(int x)
-  void testF7() {
-    Expect.isTrue(f7 is F7<int>);
-    Expect.isTrue(confuse(f7) is F7<int>);
-    // In checked mode, verifies the type.
-    Function Function([int x1]) Function(int x) l7;
-    // The static function f7 sets `T` to `int`.
-    if (tIsInt) {
-      x7 = f7 as dynamic;
-      l7 = f7 as dynamic;
-      x7 = confuse(f7);
-      l7 = confuse(f7);
-    }
-
-    Expect.isTrue(m7 is F7<T>);
-    Expect.isTrue(m7 is Function Function([int x1]) Function(int x));
-    Expect.isTrue(confuse(m7) is F7<T>);
-    // In checked mode, verifies the type.
-    x7 = m7;
-    l7 = m7;
-    x7 = confuse(m7);
-    l7 = confuse(m7);
-  }
-
-  /// Function Function({List<Function> x}) Function(int x)
-  void testF8() {
-    Expect.isTrue(f8 is F8<int>);
-    Expect.isTrue(confuse(f8) is F8<int>);
-    // In checked mode, verifies the type.
-    Function Function({List<Function> x}) Function(int x) l8;
-    // The static function f8 sets `T` to `int`.
-    if (tIsInt) {
-      x8 = f8 as dynamic;
-      l8 = f8 as dynamic;
-      x8 = confuse(f8);
-      l8 = confuse(f8);
-    }
-
-    Expect.isTrue(m8 is F8<T>);
-    Expect.isTrue(m8 is Function Function({List<Function> x}) Function(int x));
-    Expect.isTrue(confuse(m8) is F8<T>);
-    // In checked mode, verifies the type.
-    x8 = m8;
-    l8 = m8;
-    x8 = confuse(m8);
-    l8 = confuse(m8);
-  }
-
-  /// Function Function() Function(int x)
-  void testF9() {
-    Expect.isTrue(f9 is F9<int>);
-    Expect.isTrue(confuse(f9) is F9<int>);
-    // In checked mode, verifies the type.
-    Function Function() Function(int x) l9;
-    // The static function f9 sets `T` to `int`.
-    if (tIsInt) {
-      x9 = f9 as dynamic;
-      l9 = f9 as dynamic;
-      x9 = confuse(f9);
-      l9 = confuse(f9);
-    }
-
-    Expect.isTrue(m9 is F9<T>);
-    Expect.isTrue(m9 is Function Function() Function(int x));
-    Expect.isTrue(confuse(m9) is F9<T>);
-    // In checked mode, verifies the type.
-    x9 = m9;
-    l9 = m9;
-    x9 = confuse(m9);
-    l9 = confuse(m9);
-  }
-
-  /// List<Function> Function(int x1, [List<Function> x]) Function(int x)
-  void testF10() {
-    Expect.isTrue(f10 is F10<int>);
-    Expect.isTrue(confuse(f10) is F10<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function(int x1, [List<Function> x]) Function(int x) l10;
-    // The static function f10 sets `T` to `int`.
-    if (tIsInt) {
-      x10 = f10 as dynamic;
-      l10 = f10 as dynamic;
-      x10 = confuse(f10);
-      l10 = confuse(f10);
-    }
-
-    Expect.isTrue(m10 is F10<T>);
-    Expect.isTrue(m10 is List<Function> Function(int x1, [List<Function> x])
-        Function(int x));
-    Expect.isTrue(confuse(m10) is F10<T>);
-    // In checked mode, verifies the type.
-    x10 = m10;
-    l10 = m10;
-    x10 = confuse(m10);
-    l10 = confuse(m10);
-  }
-
-  /// List<Function> Function([List<T> x1]) Function(int x)
-  void testF11() {
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function([List<T> x1]) Function(int x) l11;
-    // The static function f11 sets `T` to `int`.
-    if (tIsInt) {
-      x11 = f11 as dynamic;
-      l11 = f11 as dynamic;
-      x11 = confuse(f11);
-      l11 = confuse(f11);
-    }
-
-    Expect.isTrue(m11 is F11<T>);
-    Expect.isTrue(m11 is List<Function> Function([List<T> x1]) Function(int x));
-    Expect.isTrue(confuse(m11) is F11<T>);
-    // In checked mode, verifies the type.
-    x11 = m11;
-    l11 = m11;
-    x11 = confuse(m11);
-    l11 = confuse(m11);
-    // The static function has its T always set to int.
-    Expect.isTrue(f11 is F11<int>);
-    Expect.isFalse(f11 is F11<bool>);
-    Expect.isTrue(confuse(f11) is F11<int>);
-    Expect.isFalse(confuse(f11) is F11<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        x11 = confuse(f11);
-      });
-      Expect.throws(() {
-        l11 = (f11 as dynamic);
-      });
-      Expect.throws(() {
-        l11 = confuse(f11);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m11 is F11<int>);
-      Expect.equals(tIsBool, m11 is F11<bool>);
-      Expect.equals(tIsInt, confuse(m11) is F11<int>);
-      Expect.equals(tIsBool, confuse(m11) is F11<bool>);
-    }
-  }
-
-  /// core.List<core.int> Function(int x, [Function x1]) Function(int x)
-  void testF12() {
-    Expect.isTrue(f12 is F12<int>);
-    Expect.isTrue(confuse(f12) is F12<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int x, [Function x1]) Function(int x) l12;
-    // The static function f12 sets `T` to `int`.
-    if (tIsInt) {
-      x12 = f12 as dynamic;
-      l12 = f12 as dynamic;
-      x12 = confuse(f12);
-      l12 = confuse(f12);
-    }
-
-    Expect.isTrue(m12 is F12<T>);
-    Expect.isTrue(m12 is core.List<core.int> Function(int x, [Function x1])
-        Function(int x));
-    Expect.isTrue(confuse(m12) is F12<T>);
-    // In checked mode, verifies the type.
-    x12 = m12;
-    l12 = m12;
-    x12 = confuse(m12);
-    l12 = confuse(m12);
-  }
-
-  /// core.List<core.int> Function(int y, {core.List<core.int> x}) Function(int x)
-  void testF13() {
-    Expect.isTrue(f13 is F13<int>);
-    Expect.isTrue(confuse(f13) is F13<int>);
-    // In checked mode, verifies the type.
-    core.List<core.int> Function(int y, {core.List<core.int> x}) Function(int x)
-        l13;
-    // The static function f13 sets `T` to `int`.
-    if (tIsInt) {
-      x13 = f13 as dynamic;
-      l13 = f13 as dynamic;
-      x13 = confuse(f13);
-      l13 = confuse(f13);
-    }
-
-    Expect.isTrue(m13 is F13<T>);
-    Expect.isTrue(m13 is core.List<core.int> Function(int y,
-            {core.List<core.int> x})
-        Function(int x));
-    Expect.isTrue(confuse(m13) is F13<T>);
-    // In checked mode, verifies the type.
-    x13 = m13;
-    l13 = m13;
-    x13 = confuse(m13);
-    l13 = confuse(m13);
-  }
-
-  /// List<T> Function([Function x]) Function(int x)
-  void testF14() {
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    // In checked mode, verifies the type.
-    List<T> Function([Function x]) Function(int x) l14;
-    // The static function f14 sets `T` to `int`.
-    if (tIsInt) {
-      x14 = f14 as dynamic;
-      l14 = f14 as dynamic;
-      x14 = confuse(f14);
-      l14 = confuse(f14);
-    }
-
-    Expect.isTrue(m14 is F14<T>);
-    Expect.isTrue(m14 is List<T> Function([Function x]) Function(int x));
-    Expect.isTrue(confuse(m14) is F14<T>);
-    // In checked mode, verifies the type.
-    x14 = m14;
-    l14 = m14;
-    x14 = confuse(m14);
-    l14 = confuse(m14);
-    // The static function has its T always set to int.
-    Expect.isTrue(f14 is F14<int>);
-    Expect.isFalse(f14 is F14<bool>);
-    Expect.isTrue(confuse(f14) is F14<int>);
-    Expect.isFalse(confuse(f14) is F14<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        x14 = confuse(f14);
-      });
-      Expect.throws(() {
-        l14 = (f14 as dynamic);
-      });
-      Expect.throws(() {
-        l14 = confuse(f14);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m14 is F14<int>);
-      Expect.equals(tIsBool, m14 is F14<bool>);
-      Expect.equals(tIsInt, confuse(m14) is F14<int>);
-      Expect.equals(tIsBool, confuse(m14) is F14<bool>);
-    }
-  }
-
-  /// List<T> Function(core.List<core.int> x1) Function(int x)
-  void testF15() {
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    // In checked mode, verifies the type.
-    List<T> Function(core.List<core.int> x1) Function(int x) l15;
-    // The static function f15 sets `T` to `int`.
-    if (tIsInt) {
-      x15 = f15 as dynamic;
-      l15 = f15 as dynamic;
-      x15 = confuse(f15);
-      l15 = confuse(f15);
-    }
-
-    Expect.isTrue(m15 is F15<T>);
-    Expect.isTrue(
-        m15 is List<T> Function(core.List<core.int> x1) Function(int x));
-    Expect.isTrue(confuse(m15) is F15<T>);
-    // In checked mode, verifies the type.
-    x15 = m15;
-    l15 = m15;
-    x15 = confuse(m15);
-    l15 = confuse(m15);
-    // The static function has its T always set to int.
-    Expect.isTrue(f15 is F15<int>);
-    Expect.isFalse(f15 is F15<bool>);
-    Expect.isTrue(confuse(f15) is F15<int>);
-    Expect.isFalse(confuse(f15) is F15<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        x15 = confuse(f15);
-      });
-      Expect.throws(() {
-        l15 = (f15 as dynamic);
-      });
-      Expect.throws(() {
-        l15 = confuse(f15);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m15 is F15<int>);
-      Expect.equals(tIsBool, m15 is F15<bool>);
-      Expect.equals(tIsInt, confuse(m15) is F15<int>);
-      Expect.equals(tIsBool, confuse(m15) is F15<bool>);
-    }
-  }
-
-  /// Function(int x2, [int x3]) Function(int x)
-  void testF16() {
-    Expect.isTrue(f16 is F16<int>);
-    Expect.isTrue(confuse(f16) is F16<int>);
-    // In checked mode, verifies the type.
-    Function(int x2, [int x3]) Function(int x) l16;
-    // The static function f16 sets `T` to `int`.
-    if (tIsInt) {
-      x16 = f16 as dynamic;
-      l16 = f16 as dynamic;
-      x16 = confuse(f16);
-      l16 = confuse(f16);
-    }
-
-    Expect.isTrue(m16 is F16<T>);
-    Expect.isTrue(m16 is Function(int x2, [int x3]) Function(int x));
-    Expect.isTrue(confuse(m16) is F16<T>);
-    // In checked mode, verifies the type.
-    x16 = m16;
-    l16 = m16;
-    x16 = confuse(m16);
-    l16 = confuse(m16);
-  }
-
-  /// Function(int x1, {List<Function> x}) Function(int x)
-  void testF17() {
-    Expect.isTrue(f17 is F17<int>);
-    Expect.isTrue(confuse(f17) is F17<int>);
-    // In checked mode, verifies the type.
-    Function(int x1, {List<Function> x}) Function(int x) l17;
-    // The static function f17 sets `T` to `int`.
-    if (tIsInt) {
-      x17 = f17 as dynamic;
-      l17 = f17 as dynamic;
-      x17 = confuse(f17);
-      l17 = confuse(f17);
-    }
-
-    Expect.isTrue(m17 is F17<T>);
-    Expect.isTrue(m17 is Function(int x1, {List<Function> x}) Function(int x));
-    Expect.isTrue(confuse(m17) is F17<T>);
-    // In checked mode, verifies the type.
-    x17 = m17;
-    l17 = m17;
-    x17 = confuse(m17);
-    l17 = confuse(m17);
-  }
-
-  /// void Function(int x) Function(int x)
-  void testF18() {
-    Expect.isTrue(f18 is F18<int>);
-    Expect.isTrue(confuse(f18) is F18<int>);
-    // In checked mode, verifies the type.
-    void Function(int x) Function(int x) l18;
-    // The static function f18 sets `T` to `int`.
-    if (tIsInt) {
-      x18 = f18 as dynamic;
-      l18 = f18 as dynamic;
-      x18 = confuse(f18);
-      l18 = confuse(f18);
-    }
-
-    Expect.isTrue(m18 is F18<T>);
-    Expect.isTrue(m18 is void Function(int x) Function(int x));
-    Expect.isTrue(confuse(m18) is F18<T>);
-    // In checked mode, verifies the type.
-    x18 = m18;
-    l18 = m18;
-    x18 = confuse(m18);
-    l18 = confuse(m18);
-  }
-
-  /// void Function(int y, [List<Function> x]) Function(int x)
-  void testF19() {
-    Expect.isTrue(f19 is F19<int>);
-    Expect.isTrue(confuse(f19) is F19<int>);
-    // In checked mode, verifies the type.
-    void Function(int y, [List<Function> x]) Function(int x) l19;
-    // The static function f19 sets `T` to `int`.
-    if (tIsInt) {
-      x19 = f19 as dynamic;
-      l19 = f19 as dynamic;
-      x19 = confuse(f19);
-      l19 = confuse(f19);
-    }
-
-    Expect.isTrue(m19 is F19<T>);
-    Expect.isTrue(
-        m19 is void Function(int y, [List<Function> x]) Function(int x));
-    Expect.isTrue(confuse(m19) is F19<T>);
-    // In checked mode, verifies the type.
-    x19 = m19;
-    l19 = m19;
-    x19 = confuse(m19);
-    l19 = confuse(m19);
-  }
-
-  /// void Function(int x2, [List<T> x3]) Function(int x)
-  void testF20() {
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    // In checked mode, verifies the type.
-    void Function(int x2, [List<T> x3]) Function(int x) l20;
-    // The static function f20 sets `T` to `int`.
-    if (tIsInt) {
-      x20 = f20 as dynamic;
-      l20 = f20 as dynamic;
-      x20 = confuse(f20);
-      l20 = confuse(f20);
-    }
-
-    Expect.isTrue(m20 is F20<T>);
-    Expect.isTrue(m20 is void Function(int x2, [List<T> x3]) Function(int x));
-    Expect.isTrue(confuse(m20) is F20<T>);
-    // In checked mode, verifies the type.
-    x20 = m20;
-    l20 = m20;
-    x20 = confuse(m20);
-    l20 = confuse(m20);
-    // The static function has its T always set to int.
-    Expect.isTrue(f20 is F20<int>);
-    Expect.isFalse(f20 is F20<bool>);
-    Expect.isTrue(confuse(f20) is F20<int>);
-    Expect.isFalse(confuse(f20) is F20<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        x20 = confuse(f20);
-      });
-      Expect.throws(() {
-        l20 = (f20 as dynamic);
-      });
-      Expect.throws(() {
-        l20 = confuse(f20);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m20 is F20<int>);
-      Expect.equals(tIsBool, m20 is F20<bool>);
-      Expect.equals(tIsInt, confuse(m20) is F20<int>);
-      Expect.equals(tIsBool, confuse(m20) is F20<bool>);
-    }
-  }
-
-  /// List<Function> Function<A>(core.List<core.int> x) Function(int x)
-  void testF21() {
-    Expect.isTrue(f21 is F21<int>);
-    Expect.isTrue(confuse(f21) is F21<int>);
-    // In checked mode, verifies the type.
-    List<Function> Function<A>(core.List<core.int> x) Function(int x) l21;
-    // The static function f21 sets `T` to `int`.
-    if (tIsInt) {
-      x21 = f21 as dynamic;
-      l21 = f21 as dynamic;
-      x21 = confuse(f21);
-      l21 = confuse(f21);
-    }
-
-    Expect.isTrue(m21 is F21<T>);
-    Expect.isTrue(m21 is List<Function> Function<A>(core.List<core.int> x)
-        Function(int x));
-    Expect.isTrue(confuse(m21) is F21<T>);
-    // In checked mode, verifies the type.
-    x21 = m21;
-    l21 = m21;
-    x21 = confuse(m21);
-    l21 = confuse(m21);
-  }
-
-  /// Function<A>(List<T> x) Function(int x)
-  void testF22() {
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    // In checked mode, verifies the type.
-    Function<A>(List<T> x) Function(int x) l22;
-    // The static function f22 sets `T` to `int`.
-    if (tIsInt) {
-      x22 = f22 as dynamic;
-      l22 = f22 as dynamic;
-      x22 = confuse(f22);
-      l22 = confuse(f22);
-    }
-
-    Expect.isTrue(m22 is F22<T>);
-    Expect.isTrue(m22 is Function<A>(List<T> x) Function(int x));
-    Expect.isTrue(confuse(m22) is F22<T>);
-    // In checked mode, verifies the type.
-    x22 = m22;
-    l22 = m22;
-    x22 = confuse(m22);
-    l22 = confuse(m22);
-    // The static function has its T always set to int.
-    Expect.isTrue(f22 is F22<int>);
-    Expect.isFalse(f22 is F22<bool>);
-    Expect.isTrue(confuse(f22) is F22<int>);
-    Expect.isFalse(confuse(f22) is F22<bool>);
-    if (tIsBool) {
-      Expect.throws(() {
-        x22 = (f22 as dynamic);
-      });
-      Expect.throws(() {
-        x22 = confuse(f22);
-      });
-      Expect.throws(() {
-        l22 = (f22 as dynamic);
-      });
-      Expect.throws(() {
-        l22 = confuse(f22);
-      });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(tIsInt, m22 is F22<int>);
-      Expect.equals(tIsBool, m22 is F22<bool>);
-      Expect.equals(tIsInt, confuse(m22) is F22<int>);
-      Expect.equals(tIsBool, confuse(m22) is F22<bool>);
-    }
-  }
-
-  /// void Function<A>() Function(int x)
-  void testF23() {
-    Expect.isTrue(f23 is F23<int>);
-    Expect.isTrue(confuse(f23) is F23<int>);
-    // In checked mode, verifies the type.
-    void Function<A>() Function(int x) l23;
-    // The static function f23 sets `T` to `int`.
-    if (tIsInt) {
-      x23 = f23 as dynamic;
-      l23 = f23 as dynamic;
-      x23 = confuse(f23);
-      l23 = confuse(f23);
-    }
-
-    Expect.isTrue(m23 is F23<T>);
-    Expect.isTrue(m23 is void Function<A>() Function(int x));
-    Expect.isTrue(confuse(m23) is F23<T>);
-    // In checked mode, verifies the type.
-    x23 = m23;
-    l23 = m23;
-    x23 = confuse(m23);
-    l23 = confuse(m23);
-  }
-}
-
-void main() {
-  new U9().runTests();
-  new U9<int>(tIsInt: true).runTests();
-  new U9<bool>(tIsBool: true).runTests();
-}
diff --git a/tests/language_2/function_type/test_generator.dart b/tests/language_2/function_type/test_generator.dart
deleted file mode 100644
index 48265aa8941..00000000000
--- a/tests/language_2/function_type/test_generator.dart
+++ /dev/null
@@ -1,804 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:io';
-
-// By convention:
-//
-//   T: generic type of typedef.
-//   A: generic type of returned function.
-//   B: generic type of function.
-//
-// Example:
-//    typedef F<T>: Function<A> Function<B>();
-//
-// We only use: Function, List, int (and function types).
-// We import 'dart:core' directly and with prefix 'core'.
-
-abstract class Printable {
-  /// Builds a descriptive string that can be used as an identifier.
-  ///
-  /// The string is mainly used for disambiguation, and not for its readability.
-  void writeIdentifier(StringBuffer buffer);
-}
-
-abstract class TypeLike implements Printable {
-  /// Prints `this` as valid Dart code for a Type.
-  void writeType(StringBuffer buffer);
-
-  /// Whether this type uses T in some way.
-  bool get usesT;
-
-  /// Whether this type uses T in a return (covariant) position.
-  ///
-  /// For example: `T`, `List<T>`, `T Function()`, or `Function(Function(T))`.
-  bool get returnsT;
-
-  /// Whether this type uses T in a parameter (contravariant) position.
-  ///
-  /// For example, `Function(T)`, `Function(List<T>)`, or
-  /// `Function(T Function())`.
-  bool get takesT;
-}
-
-/// Provides a unique integer for every parameter in a function.
-int parameterNameCounter = 0;
-
-/// Whether `T` should be replaced with `int`.
-bool shouldReplaceTWithInt = false;
-
-class Parameter implements TypeLike {
-  final TypeLike type;
-  final String name;
-
-  Parameter(this.type, this.name);
-
-  // Type or name can be null.
-  @override
-  writeIdentifier(buffer) {
-    if (type == null) {
-      buffer.write("null");
-    } else {
-      type.writeIdentifier(buffer);
-    }
-    buffer.write("_");
-    buffer.write(name);
-  }
-
-  void writeType(StringBuffer buffer) {
-    assert(type != null || name != null);
-    if (name == null) {
-      type.writeType(buffer);
-    } else if (type == null) {
-      buffer.write(name);
-    } else {
-      type.writeType(buffer);
-      buffer.write(" ");
-      buffer.write(name);
-    }
-  }
-
-  void writeInFunction(StringBuffer buffer) {
-    assert(type != null || name != null);
-    if (name == null) {
-      type.writeType(buffer);
-      buffer.write(" x");
-      buffer.write(parameterNameCounter++);
-    } else if (type == null) {
-      buffer.write(name);
-    } else {
-      type.writeType(buffer);
-      buffer.write(" ");
-      buffer.write(name);
-    }
-  }
-
-  bool operator ==(other) {
-    return other is Parameter && name == other.name && type == other.type;
-  }
-
-  int get hashCode {
-    return ((name.hashCode * 37) ^ type.hashCode) & 0xFFFFFFFF;
-  }
-
-  bool get usesT => type?.usesT ?? false;
-  bool get takesT => type?.takesT ?? false;
-  bool get returnsT => type?.returnsT ?? false;
-}
-
-class GenericParameter implements TypeLike {
-  final String name;
-  final TypeLike bound;
-
-  GenericParameter(this.name, [this.bound]);
-
-  // Bound may be null.
-  @override
-  writeIdentifier(buffer) {
-    buffer.write(name);
-    buffer.write("_");
-    if (bound == null) {
-      buffer.write("null");
-    } else {
-      bound.writeIdentifier(buffer);
-    }
-  }
-
-  @override
-  writeType(buffer) {
-    buffer.write(name);
-    if (bound != null) {
-      buffer.write(" extends ");
-      bound.writeType(buffer);
-    }
-  }
-
-  bool operator ==(other) {
-    return other is GenericParameter &&
-        name == other.name &&
-        bound == other.bound;
-  }
-
-  int get hashCode {
-    return ((name.hashCode * 23) ^ bound.hashCode) & 0xFFFFFFFF;
-  }
-
-  bool get usesT => bound?.usesT ?? false;
-  bool get takesT => bound?.takesT ?? false;
-  bool get returnsT => bound?.returnsT ?? false;
-}
-
-void _describeList(StringBuffer buffer, List<Printable> list) {
-  if (list == null) {
-    buffer.write("0");
-    return;
-  }
-  buffer.write(list.length.toString());
-  buffer.write("_");
-  for (int i = 0; i < list.length; i++) {
-    if (i != 0) buffer.write("_");
-    list[i].writeIdentifier(buffer);
-  }
-}
-
-void _writeTypes(StringBuffer buffer, List<TypeLike> list,
-    [String prefix = "", String postfix = ""]) {
-  if (list == null || list.isEmpty) return;
-  buffer.write(prefix);
-  for (int i = 0; i < list.length; i++) {
-    if (i != 0) buffer.write(", ");
-    list[i].writeType(buffer);
-  }
-  buffer.write(postfix);
-}
-
-void _writeParameters(
-    StringBuffer buffer, List<Parameter> list, bool inFunction,
-    [String prefix = "", String postfix = ""]) {
-  if (list == null || list.isEmpty) return;
-  buffer.write(prefix);
-  for (int i = 0; i < list.length; i++) {
-    if (i != 0) buffer.write(", ");
-    if (inFunction) {
-      list[i].writeInFunction(buffer);
-    } else {
-      list[i].writeType(buffer);
-    }
-  }
-  buffer.write(postfix);
-}
-
-bool _listUsesT(List elements) {
-  if (elements == null) return false;
-  return elements.any((p) => p.usesT);
-}
-
-bool _listEquals(List list1, List list2) {
-  if (list1 == list2) return true; // Also covers both being null.
-  if (list1 == null || list2 == null) return false;
-  for (int i = 0; i < list1.length; i++) {
-    if (list1[i] != list2[i]) return false;
-  }
-  return true;
-}
-
-int _listHash(List list) {
-  if (list == null) return null.hashCode;
-  int result = 71;
-  for (int i = 0; i < list.length; i++) {
-    result = ((result * 11) ^ list[i].hashCode) & 0xFFFFFFFF;
-  }
-  return result;
-}
-
-class FunctionType implements TypeLike {
-  final TypeLike returnType;
-  final List<GenericParameter> generic;
-  final List<Parameter> required;
-  final List<Parameter> optional;
-  final List<Parameter> named;
-
-  FunctionType(this.returnType, this.generic, this.required,
-      [this.optional, this.named]);
-
-  @override
-  writeIdentifier(buffer) {
-    buffer.write("Fun_");
-    if (returnType == null) {
-      buffer.write("null");
-    } else {
-      returnType.writeIdentifier(buffer);
-    }
-    buffer.write("_");
-    _describeList(buffer, generic);
-    buffer.write("_");
-    _describeList(buffer, required);
-    buffer.write("_");
-    _describeList(buffer, optional);
-    buffer.write("_");
-    _describeList(buffer, named);
-  }
-
-  @override
-  writeType(buffer) {
-    if (returnType != null) {
-      returnType.writeType(buffer);
-      buffer.write(" ");
-    }
-    buffer.write("Function");
-    if (generic != null) _writeTypes(buffer, generic, "<", ">");
-    buffer.write("(");
-    bool notInFunction = true;
-    _writeParameters(buffer, required, notInFunction);
-    if ((optional != null || named != null) &&
-        required != null &&
-        required.isNotEmpty) {
-      buffer.write(", ");
-    }
-    _writeParameters(buffer, optional, notInFunction, "[", "]");
-    _writeParameters(buffer, named, notInFunction, "{", "}");
-    buffer.write(")");
-  }
-
-  /// Writes this type as if it was a function.
-  void writeFunction(StringBuffer buffer, String name, {bool replaceT: true}) {
-    shouldReplaceTWithInt = replaceT;
-    parameterNameCounter = 0;
-
-    if (returnType != null) {
-      returnType.writeType(buffer);
-      buffer.write(" ");
-    }
-
-    buffer.write(name);
-    if (generic != null) _writeTypes(buffer, generic, "<", ">");
-    buffer.write("(");
-    bool inFunction = true;
-    _writeParameters(buffer, required, inFunction);
-    if ((optional != null || named != null) &&
-        required != null &&
-        required.isNotEmpty) {
-      buffer.write(", ");
-    }
-    _writeParameters(buffer, optional, inFunction, "[", "]");
-    _writeParameters(buffer, named, inFunction, "{", "}");
-    buffer.write(") => null;");
-
-    shouldReplaceTWithInt = false;
-  }
-
-  bool operator ==(other) {
-    return returnType == other.returnType &&
-        _listEquals(generic, other.generic) &&
-        _listEquals(required, other.required) &&
-        _listEquals(optional, other.optional) &&
-        _listEquals(named, other.named);
-  }
-
-  int get hashCode {
-    return ((returnType.hashCode * 13) ^
-            (_listHash(generic) * 17) ^
-            (_listHash(required) * 53) ^
-            (_listHash(optional) ^ 31) ^
-            (_listHash(named) * 87)) &
-        0xFFFFFFFF;
-  }
-
-  bool get usesT {
-    return (returnType?.usesT ?? false) ||
-        [generic, required, optional, named].any(_listUsesT);
-  }
-
-  bool get returnsT {
-    return (returnType?.returnsT ?? false) ||
-        [generic, required, optional, named]
-            .any((l) => l?.any((p) => p.takesT) ?? false);
-  }
-
-  bool get takesT {
-    return (returnType?.takesT ?? false) ||
-        [generic, required, optional, named]
-            .any((l) => l?.any((p) => p.returnsT) ?? false);
-  }
-
-  bool get reifiedTypeUsesT {
-    return returnType?.usesT ?? returnsT;
-  }
-}
-
-class NominalType implements TypeLike {
-  final String prefix;
-  final String name;
-  final List<TypeLike> generic;
-
-  NominalType(this.name, [this.prefix, this.generic]);
-
-  @override
-  writeIdentifier(buffer) {
-    buffer.write(prefix);
-    buffer.write("_");
-    buffer.write(name);
-    _describeList(buffer, generic);
-  }
-
-  @override
-  writeType(buffer) {
-    if (prefix != null && prefix != "") {
-      buffer.write(prefix);
-      buffer.write(".");
-    }
-    if (shouldReplaceTWithInt && name == "T") {
-      buffer.write("int");
-    } else {
-      buffer.write(name);
-    }
-    _writeTypes(buffer, generic, "<", ">");
-  }
-
-  bool operator ==(other) {
-    return other is NominalType && prefix == other.prefix && name == other.name;
-  }
-
-  int get hashCode {
-    return ((prefix.hashCode * 37) ^ name.hashCode) & 0xFFFFFFFF;
-  }
-
-  bool get usesT => name == "T" || _listUsesT(generic);
-
-  bool get returnsT => name == "T" || generic?.any((t) => t.returnsT) ?? false;
-
-  bool get takesT => generic?.any((t) => t.takesT) ?? false;
-}
-
-List<FunctionType> buildFunctionTypes() {
-  List<GenericParameter> as = [
-    new GenericParameter("A"),
-    // new GenericParameter("A", new NominalType("int")),
-    // new GenericParameter("A", new NominalType("int", "core")),
-  ];
-  List<GenericParameter> bs = [
-    // new GenericParameter("B"),
-    // new GenericParameter("B", new NominalType("int")),
-    new GenericParameter("B", new NominalType("int", "core")),
-  ];
-  List<TypeLike> basicTypes = [
-    new NominalType("int"),
-    // new NominalType("int", "core"),
-    // new NominalType("List"),
-    // new NominalType("List", "core"),
-    new NominalType("Function"),
-    new NominalType("List", "", [new NominalType("Function")]),
-    new NominalType("List", "core", [new NominalType("int", "core")]),
-    new NominalType("List", "", [new NominalType("T")]),
-    // new NominalType("List", "", [new NominalType("Function")]),
-  ];
-
-  List<TypeLike> basicsPlusNull = [
-    basicTypes,
-    <TypeLike>[null]
-  ].expand((x) => x).toList();
-
-  List<TypeLike> basicsPlusNullPlusVoid = [
-    basicsPlusNull,
-    [new NominalType("void")],
-  ].expand((x) => x).toList();
-
-  List<TypeLike> basicsPlusNullPlusB = [
-    basicsPlusNull,
-    [
-      new NominalType("B"),
-      new NominalType("List", "", [new NominalType("B")])
-    ]
-  ].expand((x) => x).toList();
-
-  List<TypeLike> basicsPlusNullPlusBPlusVoid = [
-    basicsPlusNullPlusB,
-    [new NominalType("void")],
-  ].expand((x) => x).toList();
-
-  List<TypeLike> basicsPlusNullPlusA = [
-    basicsPlusNull,
-    [
-      new NominalType("A"),
-      new NominalType("List", "", [new NominalType("A")])
-    ]
-  ].expand((x) => x).toList();
-
-  List<TypeLike> basicsPlusNullPlusAPlusVoid = [
-    basicsPlusNullPlusA,
-    [new NominalType("void")],
-  ].expand((x) => x).toList();
-
-  List<TypeLike> buildFunctionTypes(TypeLike returnType, TypeLike parameterType,
-      [List<GenericParameter> generics,
-      bool generateMoreCombinations = false]) {
-    List<TypeLike> result = [];
-
-    if (parameterType == null) {
-      // int Function().
-      result.add(new FunctionType(returnType, generics, null));
-      return result;
-    }
-
-    // int Function(int x).
-    result.add(new FunctionType(
-        returnType, generics, [new Parameter(parameterType, "x")]));
-
-    if (!generateMoreCombinations) return result;
-
-    // int Function([int x]).
-    result.add(new FunctionType(
-        returnType, generics, null, [new Parameter(parameterType, "x")]));
-    // int Function(int, [int x])
-    result.add(new FunctionType(
-        returnType,
-        generics,
-        [new Parameter(new NominalType("int"), null)],
-        [new Parameter(parameterType, "x")]));
-    // int Function(int x, [int x])
-    result.add(new FunctionType(
-        returnType,
-        generics,
-        [new Parameter(new NominalType("int"), "y")],
-        [new Parameter(parameterType, "x")]));
-    // int Function(int);
-    result.add(new FunctionType(
-        returnType, generics, [new Parameter(parameterType, null)]));
-    // int Function([int]);
-    result.add(new FunctionType(
-        returnType, generics, null, [new Parameter(parameterType, null)]));
-    // int Function(int, [int])
-    result.add(new FunctionType(
-        returnType,
-        generics,
-        [new Parameter(new NominalType("int"), null)],
-        [new Parameter(parameterType, null)]));
-    // int Function(int x, [int])
-    result.add(new FunctionType(
-        returnType,
-        generics,
-        [new Parameter(new NominalType("int"), "x")],
-        [new Parameter(parameterType, null)]));
-    // int Function({int x}).
-    result.add(new FunctionType(
-        returnType, generics, null, null, [new Parameter(parameterType, "x")]));
-    // int Function(int, {int x})
-    result.add(new FunctionType(
-        returnType,
-        generics,
-        [new Parameter(new NominalType("int"), null)],
-        null,
-        [new Parameter(parameterType, "x")]));
-    // int Function(int x, {int x})
-    result.add(new FunctionType(
-        returnType,
-        generics,
-        [new Parameter(new NominalType("int"), "y")],
-        null,
-        [new Parameter(parameterType, "x")]));
-    return result;
-  }
-
-  // The "smaller" function types. May also be used non-nested.
-  List<TypeLike> functionTypes = [];
-
-  for (TypeLike returnType in basicsPlusNullPlusVoid) {
-    for (TypeLike parameterType in basicsPlusNull) {
-      bool generateMoreCombinations = true;
-      functionTypes.addAll(buildFunctionTypes(
-          returnType, parameterType, null, generateMoreCombinations));
-    }
-  }
-
-  // These use `B` from the generic type of the enclosing function.
-  List<TypeLike> returnFunctionTypesB = [];
-  for (TypeLike returnType in basicsPlusNullPlusBPlusVoid) {
-    TypeLike parameterType = new NominalType("B");
-    returnFunctionTypesB.addAll(buildFunctionTypes(returnType, parameterType));
-  }
-  for (TypeLike parameterType in basicsPlusNull) {
-    TypeLike returnType = new NominalType("B");
-    returnFunctionTypesB.addAll(buildFunctionTypes(returnType, parameterType));
-  }
-
-  for (TypeLike returnType in basicsPlusNullPlusAPlusVoid) {
-    for (TypeLike parameterType in basicsPlusNullPlusA) {
-      for (GenericParameter a in as) {
-        functionTypes
-            .addAll(buildFunctionTypes(returnType, parameterType, [a]));
-      }
-    }
-  }
-
-  List<TypeLike> types = [];
-  types.addAll(functionTypes);
-
-  // Now add some higher-order function types.
-  for (TypeLike returnType in functionTypes) {
-    types.addAll(buildFunctionTypes(returnType, null));
-    types.addAll(buildFunctionTypes(returnType, new NominalType("int")));
-    for (var b in bs) {
-      types.addAll(buildFunctionTypes(returnType, null, [b]));
-      types.addAll(buildFunctionTypes(returnType, new NominalType("int"), [b]));
-    }
-  }
-  for (TypeLike returnType in returnFunctionTypesB) {
-    for (var b in bs) {
-      types.addAll(buildFunctionTypes(returnType, null, [b]));
-      types.addAll(buildFunctionTypes(returnType, new NominalType("int"), [b]));
-    }
-  }
-
-  return types;
-}
-
-final String HEADER = """
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-// GENERATED - DON'T EDIT.
-
-import 'dart:core';
-import 'dart:core' as core;
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(f) => f;
-""";
-
-class Unit {
-  int typeCounter = 0;
-  final String name;
-  final StringBuffer typedefs = new StringBuffer();
-  final StringBuffer globals = new StringBuffer();
-  final StringBuffer tests = new StringBuffer();
-  final StringBuffer fields = new StringBuffer();
-  final StringBuffer statics = new StringBuffer();
-  final StringBuffer testMethods = new StringBuffer();
-  final StringBuffer methods = new StringBuffer();
-
-  Unit(this.name);
-
-  void write(StringBuffer buffer) {
-    buffer.write("""
-$HEADER
-
-$typedefs
-
-$globals
-
-class $name<T> {
-  final bool tIsBool;
-  final bool tIsInt;
-  final bool tIsDynamic;
-
-$fields
-
-  $name({this.tIsBool: false, this.tIsInt: false})
-      : tIsDynamic = !tIsBool && !tIsInt;
-
-$methods
-
-  runTests() {\n$tests  }
-
-$testMethods
-}
-
-void main() {
-  new $name().runTests();
-  new $name<int>(tIsInt: true).runTests();
-  new $name<bool>(tIsBool: true).runTests();
-}
-    """);
-  }
-}
-
-final TEST_METHOD_HEADER = """
-  /// #typeCode
-  void #testName() {""";
-
-// Tests that apply for every type.
-final COMMON_TESTS_TEMPLATE = """
-    Expect.isTrue(#staticFunName is #typeName<int>);
-    Expect.isTrue(confuse(#staticFunName) is #typeName<int>);
-    // In checked mode, verifies the type.
-    #typeCode #localName;
-    // The static function #staticFunName sets `T` to `int`.
-    if (tIsInt) {
-      #fieldName = #staticFunName as dynamic;
-      #localName = #staticFunName as dynamic;
-      #fieldName = confuse(#staticFunName);
-      #localName = confuse(#staticFunName);
-    }
-
-    Expect.isTrue(#methodFunName is #typeName<T>);
-    Expect.isTrue(#methodFunName is #typeCode);
-    Expect.isTrue(confuse(#methodFunName) is #typeName<T>);
-    // In checked mode, verifies the type.
-    #fieldName = #methodFunName;
-    #localName = #methodFunName;
-    #fieldName = confuse(#methodFunName);
-    #localName = confuse(#methodFunName);""";
-
-// Tests that depend on the typedef "T" argument.
-//
-// These tests are executed when the surrounding class is instantiated with
-// its generic type set to `int`, `dynamic` or `bool`. In the latter case, the
-// class field `tIsBool` is set to true.
-
-// While the types themselves are not affected by the class` `T`, the methods
-// of the class may use `T`:
-//
-// For example:
-//   class A<T> {
-//      f(List<T> x) {}
-//   }
-final TYPEDEF_T_TESTS_TEMPLATE = """
-    // The static function has its T always set to int.
-    Expect.isTrue(#staticFunName is #typeName<int>);
-    Expect.isFalse(#staticFunName is #typeName<bool>);
-    Expect.isTrue(confuse(#staticFunName) is #typeName<int>);
-    Expect.isFalse(confuse(#staticFunName) is #typeName<bool>);
-    if (tIsBool) {
-      Expect.throws(() { #fieldName = (#staticFunName as dynamic); });
-      Expect.throws(() { #fieldName = confuse(#staticFunName); });
-      Expect.throws(() { #localName = (#staticFunName as dynamic); });
-      Expect.throws(() { #localName = confuse(#staticFunName); });
-    }
-    if (tIsInt || tIsBool) {
-      Expect.equals(#isIntValue, #methodFunName is #typeName<int>);
-      Expect.equals(#isBoolValue, #methodFunName is #typeName<bool>);
-      Expect.equals(#isIntValue, confuse(#methodFunName) is #typeName<int>);
-      Expect.equals(#isBoolValue, confuse(#methodFunName) is #typeName<bool>);
-    }
-""";
-
-final TEST_METHOD_FOOTER = "  }";
-
-String createTypeName(int id) => "F$id";
-String createStaticFunName(int id) => "f$id";
-String createMethodFunName(int id) => "m$id";
-String createFieldName(int id) => "x$id";
-String createLocalName(int id) => "l$id";
-String createTestName(int id) => "test${createTypeName(id)}";
-
-String createTypeCode(FunctionType type) {
-  StringBuffer typeBuffer = new StringBuffer();
-  type.writeType(typeBuffer);
-  return typeBuffer.toString();
-}
-
-String createStaticFunCode(FunctionType type, int id) {
-  StringBuffer staticFunBuffer = new StringBuffer();
-  type.writeFunction(staticFunBuffer, createStaticFunName(id));
-  return staticFunBuffer.toString();
-}
-
-String createMethodFunCode(FunctionType type, int id) {
-  StringBuffer methodFunBuffer = new StringBuffer();
-  type.writeFunction(methodFunBuffer, createMethodFunName(id), replaceT: false);
-  return methodFunBuffer.toString();
-}
-
-String createTestMethodFunCode(FunctionType type, String typeCode, int id) {
-  var tIsInt = type.reifiedTypeUsesT ? 'tIsInt' : 'true';
-  var tIsBool = type.reifiedTypeUsesT ? 'tIsBool' : 'true';
-
-  String fillTemplate(String template, int id) {
-    var result = template
-        .replaceAll("#typeName", createTypeName(id))
-        .replaceAll("#staticFunName", createStaticFunName(id))
-        .replaceAll("#methodFunName", createMethodFunName(id))
-        .replaceAll("#fieldName", createFieldName(id))
-        .replaceAll("#localName", createLocalName(id))
-        .replaceAll("#testName", createTestName(id))
-        .replaceAll("#typeCode", typeCode)
-        .replaceAll("#isIntValue", tIsInt)
-        .replaceAll("#isBoolValue", tIsBool);
-    assert(!result.contains("#"));
-    return result;
-  }
-
-  String commonTests = fillTemplate(COMMON_TESTS_TEMPLATE, id);
-  String genericTTests = "";
-  if (type.usesT) {
-    genericTTests = fillTemplate(TYPEDEF_T_TESTS_TEMPLATE, id);
-  }
-  return """
-${fillTemplate(TEST_METHOD_HEADER, id)}
-$commonTests
-$genericTTests
-$TEST_METHOD_FOOTER
-""";
-}
-
-void generateTests() {
-  // Keep methods and classes smaller by distributing over several different
-  // classes.
-  List<Unit> units = [];
-  for (int i = 0; i < 100; i++) {
-    units.add(new Unit("U$i"));
-  }
-
-  var types = buildFunctionTypes();
-
-  int unitCounter = 0;
-  types.forEach((FunctionType type) {
-    Unit unit = units[unitCounter % units.length];
-    unitCounter++;
-    int typeCounter = unit.typeCounter++;
-
-    String typeName = createTypeName(typeCounter);
-    String fieldName = createFieldName(typeCounter);
-    String testName = createTestName(typeCounter);
-
-    String typeCode = createTypeCode(type);
-    String staticFunCode = createStaticFunCode(type, typeCounter);
-    String methodFunCode = createMethodFunCode(type, typeCounter);
-    String testMethodCode =
-        createTestMethodFunCode(type, typeCode, typeCounter);
-
-    unit.typedefs.writeln("typedef $typeName<T> = $typeCode;");
-    unit.globals.writeln(staticFunCode);
-    unit.fields.writeln("  $typeCode $fieldName;");
-    unit.methods.writeln("  $methodFunCode");
-    unit.testMethods.writeln("$testMethodCode");
-    unit.tests.writeln("    $testName();");
-  });
-
-  for (int i = 0; i < units.length; i++) {
-    var unit = units[i];
-    var buffer = new StringBuffer();
-    unit.write(buffer);
-    var path = Platform.script.resolve("function_type${i}_test.dart").path;
-    new File(path).writeAsStringSync(buffer.toString());
-  }
-}
-
-void printUsage() {
-  print("""
-Generates function type tests.
-
-All tests are generated in the same directory as this script.
-""");
-}
-
-void main(List<String> arguments) {
-  if (arguments.length != 0) {
-    printUsage();
-    return;
-  }
-  generateTests();
-}
diff --git a/tests/language_2/generic/async_star_test.dart b/tests/language_2/generic/async_star_test.dart
deleted file mode 100644
index 66b6eb3d441..00000000000
--- a/tests/language_2/generic/async_star_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import 'dart:async';
-
-Stream<T> foo<T>(T x) async* {
-  for (int i = 0; i < 3; i++) {
-    yield x;
-  }
-}
-
-main() async {
-  await for (var x in foo<int>(1)) {
-    Expect.equals(1, x);
-  }
-}
diff --git a/tests/language_2/generic/async_test.dart b/tests/language_2/generic/async_test.dart
deleted file mode 100644
index 10310a89666..00000000000
--- a/tests/language_2/generic/async_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import 'dart:async';
-
-Future<T> foo<T>(T x) async => x;
-
-main() async {
-  Expect.equals(1, await foo<int>(1));
-}
diff --git a/tests/language_2/generic/cascaded_forwarding_stubs_generic_test.dart b/tests/language_2/generic/cascaded_forwarding_stubs_generic_test.dart
deleted file mode 100644
index d97fa3dca93..00000000000
--- a/tests/language_2/generic/cascaded_forwarding_stubs_generic_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-class C {
-  void f(B x, B y) {}
-}
-
-abstract class I1<T> {
-  void f(T x, B y);
-}
-
-// D contains a forwarding stub for f which ensures that `x` is type checked.
-class D extends C implements I1<B> {}
-
-abstract class I2<T> {
-  void f(B x, T y);
-}
-
-// E contains a forwarding stub for f which ensures that `y` is type checked.
-class E extends D implements I2<B> {}
-
-main() {
-  E e = new E();
-  C c = e;
-  I1<A> i1 = e;
-  D d = e;
-  I2<A> i2 = e;
-  A a = new A();
-  B b = new B();
-  c.f(b, b); // No error
-  i1.f(b, b); // No error
-  d.f(b, b); // No error
-  i2.f(b, b); // No error
-  e.f(b, b); // No error
-  Expect.throwsTypeError(() {
-    i1.f(a, b);
-  });
-  Expect.throwsTypeError(() {
-    d.f(a, b);
-  });
-  Expect.throwsTypeError(() {
-    i2.f(b, a);
-  });
-  Expect.throwsTypeError(() {
-    e.f(a, b);
-  });
-  Expect.throwsTypeError(() {
-    e.f(b, a);
-  });
-}
diff --git a/tests/language_2/generic/closure_test.dart b/tests/language_2/generic/closure_test.dart
deleted file mode 100644
index 91845efd58f..00000000000
--- a/tests/language_2/generic/closure_test.dart
+++ /dev/null
@@ -1,72 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-// Check that generic closures are properly instantiated.
-
-import 'package:expect/expect.dart';
-
-typedef T F<T>(T x);
-typedef R G<T, R>(T x);
-
-class C<T> {
-  get f => (T x) => x;
-  T g(T x) => x;
-}
-
-main() {
-  {
-    var c = new C<int>();
-    var f = c.f;
-    var g = c.g;
-    Expect.equals("(int) => int", f.runtimeType.toString()); //# 01: ok
-    Expect.equals("(Object) => int", g.runtimeType.toString()); //# 01: ok
-    Expect.equals(21, f(21));
-    Expect.equals(14, g(14));
-    Expect.isTrue(f is Function);
-    Expect.isTrue(g is Function);
-    Expect.isTrue(f is! F);
-    Expect.isTrue(g is F);
-    Expect.isTrue(f is F<int>);
-    Expect.isTrue(g is F<int>);
-    Expect.isTrue(f is! F<bool>);
-    Expect.isTrue(g is! F<bool>);
-    Expect.isTrue(f is G<int, int>);
-    Expect.isTrue(g is G<int, int>);
-    Expect.isTrue(f is! G<int, bool>);
-    Expect.isTrue(g is! G<int, bool>);
-    Expect.isTrue(f is! G<Object,int>);
-    Expect.isTrue(g is G<Object, int>);
-  }
-
-  {
-    var c = new C<bool>();
-    var f = c.f;
-    var g = c.g;
-    Expect.equals("(bool) => bool", f.runtimeType.toString()); //# 01: ok
-    Expect.equals("(Object) => bool", g.runtimeType.toString()); //# 01: ok
-    Expect.isTrue(f is! F);
-    Expect.isTrue(g is F);
-    Expect.isTrue(f is! F<int>);
-    Expect.isTrue(g is! F<int>);
-    Expect.isTrue(f is F<bool>);
-    Expect.isTrue(g is F<bool>);
-  }
-
-  {
-    var c = new C();
-    var f = c.f;
-    var g = c.g;
-    Expect.equals("(dynamic) => dynamic", f.runtimeType.toString()); //# 01: ok
-    Expect.equals("(Object) => dynamic", g.runtimeType.toString()); //# 01: ok
-    Expect.isTrue(f is F);
-    Expect.isTrue(g is F);
-    Expect.isTrue(f is! F<int>);
-    Expect.isTrue(g is! F<int>);
-    Expect.isTrue(f is! F<bool>);
-    Expect.isTrue(g is! F<bool>);
-  }
-}
diff --git a/tests/language_2/generic/conflicting_generic_interfaces_hierarchy_loop_infinite_test.dart b/tests/language_2/generic/conflicting_generic_interfaces_hierarchy_loop_infinite_test.dart
deleted file mode 100644
index 5aba1f1cca8..00000000000
--- a/tests/language_2/generic/conflicting_generic_interfaces_hierarchy_loop_infinite_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test arithmetic operations.
-
-// @dart = 2.9
-
-// There is an interface conflict here due to a loop in the class
-// hierarchy leading to an infinite set of implemented types; this loop
-// shouldn't cause non-termination.
-class A<T> implements B<List<T>> {}
-//    ^
-// [analyzer] COMPILE_TIME_ERROR.RECURSIVE_INTERFACE_INHERITANCE
-// [cfe] 'A' is a supertype of itself.
-
-class B<T> implements A<List<T>> {}
-//    ^
-// [analyzer] COMPILE_TIME_ERROR.RECURSIVE_INTERFACE_INHERITANCE
-// [cfe] 'B' is a supertype of itself.
-
-main() {
-  new A();
-  new B();
-}
diff --git a/tests/language_2/generic/conflicting_generic_interfaces_hierarchy_loop_test.dart b/tests/language_2/generic/conflicting_generic_interfaces_hierarchy_loop_test.dart
deleted file mode 100644
index 59caff833e6..00000000000
--- a/tests/language_2/generic/conflicting_generic_interfaces_hierarchy_loop_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test arithmetic operations.
-
-// @dart = 2.9
-
-// There is no interface conflict here, but there is a loop in the class
-// hierarchy leading to a finite set of implemented types; this loop
-// shouldn't cause non-termination.
-class A<T> implements B<T> {}
-//    ^
-// [analyzer] COMPILE_TIME_ERROR.RECURSIVE_INTERFACE_INHERITANCE
-// [cfe] 'A' is a supertype of itself.
-
-class B<T> implements A<T> {}
-//    ^
-// [analyzer] COMPILE_TIME_ERROR.RECURSIVE_INTERFACE_INHERITANCE
-// [cfe] 'B' is a supertype of itself.
-
-main() {
-  new A();
-  new B();
-}
diff --git a/tests/language_2/generic/conflicting_generic_interfaces_no_conflict_test.dart b/tests/language_2/generic/conflicting_generic_interfaces_no_conflict_test.dart
deleted file mode 100644
index 61d4b0c7cfa..00000000000
--- a/tests/language_2/generic/conflicting_generic_interfaces_no_conflict_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test arithmetic operations.
-
-// @dart = 2.9
-
-class I<T> {}
-
-class A implements I<int> {}
-
-class B implements I<int> {}
-
-class C extends A implements B {}
-
-main() {
-  new C();
-}
diff --git a/tests/language_2/generic/conflicting_generic_interfaces_simple_test.dart b/tests/language_2/generic/conflicting_generic_interfaces_simple_test.dart
deleted file mode 100644
index b02cd265445..00000000000
--- a/tests/language_2/generic/conflicting_generic_interfaces_simple_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test arithmetic operations.
-
-// @dart = 2.9
-
-class I<T> {}
-
-class A implements I<int> {}
-
-class B implements I<String> {}
-
-class C extends A implements B {}
-//    ^
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_GENERIC_INTERFACES
-// [cfe] 'C' can't implement both 'I<int>' and 'I<String>'
-
-main() {
-  new C();
-}
diff --git a/tests/language_2/generic/constructor_mixin2_runtime_test.dart b/tests/language_2/generic/constructor_mixin2_runtime_test.dart
deleted file mode 100644
index 2d693e3d2b7..00000000000
--- a/tests/language_2/generic/constructor_mixin2_runtime_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that parameter types are checked correctly in the face of
-// mixin application upon a generic constructor.
-
-import '../dynamic_type_helper.dart';
-
-class A<X> {
-  A(X x);
-}
-
-class B {}
-
-class C {}
-
-class D<Y> = A<Y> with B, C;
-
-void main() {
-  var v = 0;
-  checkNoDynamicTypeError(() => new D<int>(v));
-
-}
diff --git a/tests/language_2/generic/constructor_mixin2_test.dart b/tests/language_2/generic/constructor_mixin2_test.dart
deleted file mode 100644
index a187eed4360..00000000000
--- a/tests/language_2/generic/constructor_mixin2_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that parameter types are checked correctly in the face of
-// mixin application upon a generic constructor.
-
-import '../dynamic_type_helper.dart';
-
-class A<X> {
-  A(X x);
-}
-
-class B {}
-
-class C {}
-
-class D<Y> = A<Y> with B, C;
-
-void main() {
-  var v = 0;
-  checkNoDynamicTypeError(() => new D<int>(v));
-  checkDynamicTypeError(() => new D<String>(v));
-  //                                        ^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] The argument type 'int' can't be assigned to the parameter type 'String'.
-}
diff --git a/tests/language_2/generic/constructor_mixin3_runtime_test.dart b/tests/language_2/generic/constructor_mixin3_runtime_test.dart
deleted file mode 100644
index 1b90efbd261..00000000000
--- a/tests/language_2/generic/constructor_mixin3_runtime_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that parameter types are checked correctly in the face of
-// mixin application upon a generic constructor.
-
-import '../dynamic_type_helper.dart';
-
-class A<X> {
-  A(X x);
-}
-
-class B {}
-
-class C1 = A<int> with B;
-class C2 = A<String> with B;
-
-void main() {
-  var v = 0;
-  checkNoDynamicTypeError(() => new C1(v));
-
-}
diff --git a/tests/language_2/generic/constructor_mixin3_test.dart b/tests/language_2/generic/constructor_mixin3_test.dart
deleted file mode 100644
index a2e5129a839..00000000000
--- a/tests/language_2/generic/constructor_mixin3_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that parameter types are checked correctly in the face of
-// mixin application upon a generic constructor.
-
-import '../dynamic_type_helper.dart';
-
-class A<X> {
-  A(X x);
-}
-
-class B {}
-
-class C1 = A<int> with B;
-class C2 = A<String> with B;
-
-void main() {
-  var v = 0;
-  checkNoDynamicTypeError(() => new C1(v));
-  checkDynamicTypeError(() => new C2(v));
-  //                                 ^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] The argument type 'int' can't be assigned to the parameter type 'String'.
-}
diff --git a/tests/language_2/generic/constructor_mixin_runtime_test.dart b/tests/language_2/generic/constructor_mixin_runtime_test.dart
deleted file mode 100644
index 1430c8e4d0b..00000000000
--- a/tests/language_2/generic/constructor_mixin_runtime_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that parameter types are checked correctly in the face of
-// mixin application upon a generic constructor.
-
-import '../dynamic_type_helper.dart';
-
-class A<X> {
-  A(X x);
-}
-
-class B {}
-
-class C<Y> = A<Y> with B;
-
-void main() {
-  var v = 0;
-  checkNoDynamicTypeError(() => new C<int>(v));
-
-}
diff --git a/tests/language_2/generic/constructor_mixin_test.dart b/tests/language_2/generic/constructor_mixin_test.dart
deleted file mode 100644
index e87d5d0c026..00000000000
--- a/tests/language_2/generic/constructor_mixin_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that parameter types are checked correctly in the face of
-// mixin application upon a generic constructor.
-
-import '../dynamic_type_helper.dart';
-
-class A<X> {
-  A(X x);
-}
-
-class B {}
-
-class C<Y> = A<Y> with B;
-
-void main() {
-  var v = 0;
-  checkNoDynamicTypeError(() => new C<int>(v));
-  checkDynamicTypeError(() => new C<String>(v));
-  //                                        ^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] The argument type 'int' can't be assigned to the parameter type 'String'.
-}
diff --git a/tests/language_2/generic/creation_test.dart b/tests/language_2/generic/creation_test.dart
deleted file mode 100644
index 40cb4b687c5..00000000000
--- a/tests/language_2/generic/creation_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A<X, Y, Z> {
-  shift() => new A<Z, X, Y>();
-  swap() => new A<Z, Y, X>();
-  first() => new A<X, X, X>();
-  last() => new A<Z, Z, Z>();
-  wrap() => new A<A<X, X, X>, A<Y, Y, Y>, A<Z, Z, Z>>();
-}
-
-class B extends A<U, V, W> {}
-
-class C<T> extends A<U, T, W> {}
-
-class D<X, Y, Z> extends A<Y, Z, X> {}
-
-class U {}
-
-class V {}
-
-class W {}
-
-sameType(a, b) => Expect.equals(a.runtimeType, b.runtimeType);
-
-main() {
-  A a = new A<U, V, W>();
-  sameType(new A<W, U, V>(), a.shift());
-  sameType(new A<W, V, U>(), a.swap());
-  sameType(new A<U, U, U>(), a.first());
-  sameType(new A<W, W, W>(), a.last());
-  sameType(new A<A<U, U, U>, A<V, V, V>, A<W, W, W>>(), a.wrap());
-  B b = new B();
-  sameType(new A<A<U, U, U>, A<V, V, V>, A<W, W, W>>(), b.wrap());
-  C c = new C<V>();
-  sameType(new A<A<U, U, U>, A<V, V, V>, A<W, W, W>>(), c.wrap());
-  D d = new D<U, V, W>();
-  sameType(new A<A<V, V, V>, A<W, W, W>, A<U, U, U>>(), d.wrap());
-}
diff --git a/tests/language_2/generic/deep_test.dart b/tests/language_2/generic/deep_test.dart
deleted file mode 100644
index 7ebf7ea6268..00000000000
--- a/tests/language_2/generic/deep_test.dart
+++ /dev/null
@@ -1,94 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test for deeply nested generic types.
-
-/** A natural number aka Peano number. */
-abstract class N {
-  N add1();
-  N sub1();
-}
-
-/** Zero element. */
-class Z implements N {
-  Z();
-  N add1() {
-    return new S<Z>(this);
-  }
-
-  N sub1() {
-    throw "Error: sub1(0)";
-  }
-}
-
-/** Successor element. */
-class S<K> implements N {
-  N before;
-  S(this.before);
-  N add1() {
-    return new S<S<K>>(this);
-  }
-
-  N sub1() {
-    // It would be super cool if this could be "new K()".
-    return before;
-  }
-}
-
-N NFromInt(int x) {
-  if (x == 0)
-    return new Z();
-  else
-    return NFromInt(x - 1).add1();
-}
-
-int IntFromN(N x) {
-  if (x is Z) return 0;
-  if (x is S) return IntFromN(x.sub1()) + 1;
-  throw "Error";
-}
-
-bool IsEven(N x) {
-  if (x is Z) return true;
-  if (x is S<Z>) return false;
-  if (x is S<S>) return IsEven(x.sub1().sub1());
-  throw "Error in IsEven";
-}
-
-main() {
-  Expect.isTrue(NFromInt(0) is Z);
-  Expect.isTrue(NFromInt(1) is S<Z>);
-  Expect.isTrue(NFromInt(2) is S<S<Z>>);
-  Expect.isTrue(NFromInt(3) is S<S<S<Z>>>);
-  Expect.isTrue(NFromInt(10) is S<S<S<S<S<S<S<S<S<S<Z>>>>>>>>>>);
-
-  // Negative tests.
-  Expect.isTrue(NFromInt(0) is! S);
-  Expect.isTrue(NFromInt(1) is! Z);
-  Expect.isTrue(NFromInt(1) is! S<S>);
-  Expect.isTrue(NFromInt(2) is! Z);
-  Expect.isTrue(NFromInt(2) is! S<Z>);
-  Expect.isTrue(NFromInt(2) is! S<S<S>>);
-
-  // Greater-than tests
-  Expect.isTrue(NFromInt(4) is S<S>); //            4 >= 2
-  Expect.isTrue(NFromInt(4) is S<S<S>>); //         4 >= 3
-  Expect.isTrue(NFromInt(4) is S<S<S<S>>>); //      4 >= 4
-  Expect.isTrue(NFromInt(4) is! S<S<S<S<S>>>>); //  4 < 5
-
-  Expect.isTrue(IsEven(NFromInt(0)));
-  Expect.isFalse(IsEven(NFromInt(1)));
-  Expect.isTrue(IsEven(NFromInt(2)));
-  Expect.isFalse(IsEven(NFromInt(3)));
-  Expect.isTrue(IsEven(NFromInt(4)));
-
-  Expect.equals(0, IntFromN(NFromInt(0)));
-  Expect.equals(1, IntFromN(NFromInt(1)));
-  Expect.equals(2, IntFromN(NFromInt(2)));
-  Expect.equals(50, IntFromN(NFromInt(50)));
-}
diff --git a/tests/language_2/generic/f_bounded_equality_test.dart b/tests/language_2/generic/f_bounded_equality_test.dart
deleted file mode 100644
index 6d33996199a..00000000000
--- a/tests/language_2/generic/f_bounded_equality_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Magnitude<T> {
-  get t => T;
-}
-
-class Real extends Magnitude<Real> {}
-
-class FBound<F extends FBound<F>> {
-  get f => F;
-}
-
-class Bar extends FBound<Bar> {}
-
-main() {
-  var r = new Real();
-  Expect.equals(r.runtimeType, Real);
-  Expect.equals(r.t, Real);
-  Expect.equals(r.runtimeType, r.t);
-
-  var b = new Bar();
-  Expect.equals(b.runtimeType, Bar);
-  Expect.equals(b.f, Bar);
-  Expect.equals(b.runtimeType, b.f);
-}
diff --git a/tests/language_2/generic/f_bounded_quantification2_test.dart b/tests/language_2/generic/f_bounded_quantification2_test.dart
deleted file mode 100644
index 9c3dc43998d..00000000000
--- a/tests/language_2/generic/f_bounded_quantification2_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for F-Bounded Quantification. Regression test for issue 9291.
-
-class Entities<T extends ConceptEntity<T>> implements EntitiesApi<T> {}
-
-class ConceptEntity<T extends ConceptEntity<T>> implements EntityApi<T> {}
-
-abstract class EntityApi<T extends EntityApi<T>> {}
-
-abstract class EntitiesApi<T extends EntityApi<T>> {}
-
-class Concept extends ConceptEntity<Concept> {}
-
-main() {
-  new ConceptEntity<Concept>();
-}
diff --git a/tests/language_2/generic/f_bounded_quantification3_test.dart b/tests/language_2/generic/f_bounded_quantification3_test.dart
deleted file mode 100644
index e8a7da5337e..00000000000
--- a/tests/language_2/generic/f_bounded_quantification3_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for F-Bounded Quantification.
-
-class FBound1<F1 extends FBound1<F1, F2>, F2 extends FBound2<F1, F2>> {
-  Test() {
-    new FBound1<F1, F2>();
-    new FBound2<F1, F2>();
-  }
-}
-
-class FBound2<F1 extends FBound1<F1, F2>, F2 extends FBound2<F1, F2>> {
-  Test() {
-    new FBound1<F1, F2>();
-    new FBound2<F1, F2>();
-  }
-}
-
-class Bar extends FBound1<Bar, Baz> {}
-
-class Baz extends FBound2<Bar, Baz> {}
-
-main() {
-  new FBound1<Bar, Baz>().Test();
-  new FBound2<Bar, Baz>().Test();
-}
diff --git a/tests/language_2/generic/f_bounded_quantification4_test.dart b/tests/language_2/generic/f_bounded_quantification4_test.dart
deleted file mode 100644
index 154628639a3..00000000000
--- a/tests/language_2/generic/f_bounded_quantification4_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for F-Bounded Quantification.
-
-import "package:expect/expect.dart";
-
-class A<T extends B<T>> {}
-
-class B<T extends B<T>> extends A<T> {}
-
-class Foo<T extends B<T>> extends B<Foo<T>> {}
-
-main() {
-  Expect.equals("Foo<Foo<B<dynamic>>>", new Foo<Foo>().runtimeType.toString());
-}
diff --git a/tests/language_2/generic/f_bounded_quantification5_test.dart b/tests/language_2/generic/f_bounded_quantification5_test.dart
deleted file mode 100644
index 3d68ea4c843..00000000000
--- a/tests/language_2/generic/f_bounded_quantification5_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for F-Bounded Quantification.
-
-import "package:expect/expect.dart";
-
-@pragma("vm:entry-point")
-class A<T extends B<dynamic>> {}
-
-@pragma("vm:entry-point")
-class B<T extends Object> {}
-
-main() {
-  // Getting "int" when calling toString() on the int type is not required.
-  // However, we want to keep the original names for the most common core
-  // types so we make sure to handle these specifically in the compiler.
-  Expect.equals("A<B<int>>", new A<B<int>>().runtimeType.toString());
-}
diff --git a/tests/language_2/generic/f_bounded_quantification_runtime_test.dart b/tests/language_2/generic/f_bounded_quantification_runtime_test.dart
deleted file mode 100644
index b425012fc20..00000000000
--- a/tests/language_2/generic/f_bounded_quantification_runtime_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test for F-Bounded Quantification.
-
-class FBound<F extends FBound<F>> {}
-
-class Bar extends FBound<Bar> {}
-
-class SubBar extends Bar {}
-
-class Baz<T> extends FBound<Baz<T>> {}
-
-class SubBaz<T> extends Baz<T> {}
-
-main() {
-  FBound<Bar> fb = new FBound<Bar>();
-
-
-  FBound<Baz<Bar>> fbb = new FBound<Baz<Bar>>();
-
-}
diff --git a/tests/language_2/generic/f_bounded_quantification_test.dart b/tests/language_2/generic/f_bounded_quantification_test.dart
deleted file mode 100644
index 7ff3b40e9b5..00000000000
--- a/tests/language_2/generic/f_bounded_quantification_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for F-Bounded Quantification.
-
-class FBound<F extends FBound<F>> {}
-
-class Bar extends FBound<Bar> {}
-
-class SubBar extends Bar {}
-
-class Baz<T> extends FBound<Baz<T>> {}
-
-class SubBaz<T> extends Baz<T> {}
-
-main() {
-  FBound<Bar> fb = new FBound<Bar>();
-  FBound<SubBar> fsb = new FBound<SubBar>();
-//^
-// [cfe] Type argument 'SubBar' doesn't conform to the bound 'FBound<F>' of the type variable 'F' on 'FBound'.
-  //     ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-  //                       ^
-  // [cfe] Type argument 'SubBar' doesn't conform to the bound 'FBound<F>' of the type variable 'F' on 'FBound'.
-  //                              ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-
-  FBound<Baz<Bar>> fbb = new FBound<Baz<Bar>>();
-  FBound<SubBaz<Bar>> fsbb = new FBound<SubBaz<Bar>>();
-//^
-// [cfe] Type argument 'SubBaz<Bar>' doesn't conform to the bound 'FBound<F>' of the type variable 'F' on 'FBound'.
-  //     ^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-  //                             ^
-  // [cfe] Type argument 'SubBaz<Bar>' doesn't conform to the bound 'FBound<F>' of the type variable 'F' on 'FBound'.
-  //                                    ^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-}
diff --git a/tests/language_2/generic/field_mixin2_test.dart b/tests/language_2/generic/field_mixin2_test.dart
deleted file mode 100644
index 425dec93ffb..00000000000
--- a/tests/language_2/generic/field_mixin2_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that generic types in mixins are handled.
-
-import 'package:expect/expect.dart';
-
-class M<T> {
-  var field = T;
-}
-
-class A<U> {}
-
-class C1<V> = Object with M<V>;
-class C2 = Object with M<int>;
-class C3 = Object with M<String>;
-
-main() {
-  Expect.equals(int, new C1<int>().field);
-  Expect.equals(String, new C1<String>().field);
-
-  Expect.equals(int, new C2().field);
-
-  Expect.equals(String, new C3().field);
-}
diff --git a/tests/language_2/generic/field_mixin3_test.dart b/tests/language_2/generic/field_mixin3_test.dart
deleted file mode 100644
index f801244f604..00000000000
--- a/tests/language_2/generic/field_mixin3_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that generic types in mixins are handled.
-
-import 'package:expect/expect.dart';
-
-class M<T> {
-  var field = new A<int>() is A<T>;
-}
-
-class A<U> {}
-
-class C1<V> = Object with M<V>;
-class C2 = Object with M<int>;
-class C3 = Object with M<String>;
-
-main() {
-  Expect.isTrue(new C1<int>().field);
-  Expect.isFalse(new C1<String>().field);
-
-  Expect.isTrue(new C2().field);
-
-  Expect.isFalse(new C3().field);
-}
diff --git a/tests/language_2/generic/field_mixin4_test.dart b/tests/language_2/generic/field_mixin4_test.dart
deleted file mode 100644
index df4cfaa09c3..00000000000
--- a/tests/language_2/generic/field_mixin4_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that generic types in mixins are handled.
-
-import 'package:expect/expect.dart';
-
-class M<T> {
-  bool field = () {
-    try {
-      throw 0;
-    } on T catch (e) {
-      return true;
-    } catch (e) {}
-    return false;
-  }();
-}
-
-class A<U> {}
-
-class C1<V> = Object with M<V>;
-class C2 = Object with M<int>;
-class C3 = Object with M<String>;
-
-main() {
-  Expect.isTrue(new C1<int>().field);
-  Expect.isFalse(new C1<String>().field);
-
-  Expect.isTrue(new C2().field);
-
-  Expect.isFalse(new C3().field);
-}
diff --git a/tests/language_2/generic/field_mixin5_test.dart b/tests/language_2/generic/field_mixin5_test.dart
deleted file mode 100644
index 0a44e4ef3bc..00000000000
--- a/tests/language_2/generic/field_mixin5_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that generic types in mixins are handled.
-
-import 'package:expect/expect.dart';
-
-class M<T> {
-  Type field = () {
-    return T;
-  }();
-}
-
-class A<U> {}
-
-class C1<V> = Object with M<V>;
-class C2 = Object with M<int>;
-class C3 = Object with M<String>;
-
-main() {
-  Expect.equals(int, new C1<int>().field);
-  Expect.equals(String, new C1<String>().field);
-
-  Expect.equals(int, new C2().field);
-
-  Expect.equals(String, new C3().field);
-}
diff --git a/tests/language_2/generic/field_mixin6_runtime_test.dart b/tests/language_2/generic/field_mixin6_runtime_test.dart
deleted file mode 100644
index 24a6fdef41c..00000000000
--- a/tests/language_2/generic/field_mixin6_runtime_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that generic types in mixins are handled.
-
-import 'package:expect/expect.dart';
-
-class M<T> {
-
-  T field2 = 0 as dynamic;
-}
-
-class A<U> {}
-
-class C1<V> = Object with M<V>;
-class C2 = Object with M<int>;
-class C3 = Object with M<String>;
-
-main() {
-  // no error: 0 is an int
-  new C1<int>();
-  new C2();
-
-  // type error: 0 is not a string
-  Expect.throwsTypeError(() => new C1<String>());
-  Expect.throws(() => new C3());
-}
diff --git a/tests/language_2/generic/field_mixin6_test.dart b/tests/language_2/generic/field_mixin6_test.dart
deleted file mode 100644
index 8bd5366309e..00000000000
--- a/tests/language_2/generic/field_mixin6_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that generic types in mixins are handled.
-
-import 'package:expect/expect.dart';
-
-class M<T> {
-  T field1 = 0;
-  //         ^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  // [cfe] A value of type 'int' can't be assigned to a variable of type 'T'.
-  T field2 = 0 as dynamic;
-}
-
-class A<U> {}
-
-class C1<V> = Object with M<V>;
-class C2 = Object with M<int>;
-class C3 = Object with M<String>;
-
-main() {
-  // no error: 0 is an int
-  new C1<int>();
-  new C2();
-
-  // type error: 0 is not a string
-  Expect.throwsTypeError(() => new C1<String>());
-  Expect.throws(() => new C3());
-}
diff --git a/tests/language_2/generic/field_mixin_test.dart b/tests/language_2/generic/field_mixin_test.dart
deleted file mode 100644
index c208d19f51a..00000000000
--- a/tests/language_2/generic/field_mixin_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that generic types in mixins are handled.
-
-import 'package:expect/expect.dart';
-
-class M<T> {
-  var field = new A<T>();
-}
-
-class A<U> {}
-
-class C1<V> = Object with M<V>;
-class C2 = Object with M<int>;
-class C3 = Object with M<String>;
-
-main() {
-  Expect.isTrue(new C1<int>().field is A<int>);
-  Expect.isFalse(new C1<int>().field is A<String>);
-  Expect.isFalse(new C1<String>().field is A<int>);
-  Expect.isTrue(new C1<String>().field is A<String>);
-
-  Expect.isTrue(new C2().field is A<int>);
-  Expect.isFalse(new C2().field is A<String>);
-
-  Expect.isFalse(new C3().field is A<int>);
-  Expect.isTrue(new C3().field is A<String>);
-}
diff --git a/tests/language_2/generic/function_bounds_test.dart b/tests/language_2/generic/function_bounds_test.dart
deleted file mode 100644
index f5690efe54d..00000000000
--- a/tests/language_2/generic/function_bounds_test.dart
+++ /dev/null
@@ -1,122 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--lazy-dispatchers
-// VMOptions=--no-lazy-dispatchers
-
-import 'dart:math';
-import 'package:expect/expect.dart';
-
-Type getType<T>() => T;
-
-void testInstantiateToBounds() {
-  f<T extends num, U extends T>() => [T, U];
-  g<T extends List<U>, U extends int>() => [T, U];
-  h<T extends U, U extends num>(T x, U y) => [T, U];
-
-  // Check that instantiate to bounds creates the correct type arguments
-  // during dynamic calls.
-  Expect.listEquals([num, num], (f as dynamic)());
-  Expect.listEquals([getType<List<int>>(), int], (g as dynamic)());
-  Expect.listEquals([num, num], (h as dynamic)(null, null));
-
-  // Check that when instantiate to bounds creates a super-bounded type argument
-  // during a dynamic call, an error is thrown.
-  i<T extends Iterable<T>>() => null;
-  j<T extends Iterable<S>, S extends T>() => null;
-  Expect.throwsTypeError(() => (i as dynamic)(), "Super bounded type argument");
-  Expect.throwsTypeError(() => (j as dynamic)(), "Super bounded type argument");
-}
-
-void testChecksBound() {
-  f<T extends num>(T x) => x;
-  g<T extends U, U extends num>(T x, U y) => x;
-
-  // Check that arguments are checked against the correct types when instantiate
-  // to bounds produces a type argument during a dynamic call.
-  Expect.equals((f as dynamic)(42), 42);
-  Expect.equals((g as dynamic)(42.0, 100), 42.0);
-  Expect.throwsTypeError(() => (f as dynamic)('42'), "Argument check");
-  Expect.throwsTypeError(() => (g as dynamic)('hi', 100), "Argument check");
-
-  // Check that an actual type argument is checked against the bound during a
-  // dynamic call.
-  Expect.equals((f as dynamic)<int>(42), 42);
-  Expect.equals((g as dynamic)<double, num>(42.0, 100), 42.0);
-  Expect.throwsTypeError(() => (g as dynamic)<double, int>(42.0, 100),
-      "Type argument bounds check");
-  Expect.throwsTypeError(
-      () => (f as dynamic)<Object>(42), "Type argument bounds check");
-  Expect.throwsTypeError(() => (g as dynamic)<double, int>(42.0, 100),
-      "Type argument bounds check");
-  Expect.throwsTypeError(() => (g as dynamic)<num, Object>(42.0, 100),
-      "Type argument bounds check");
-}
-
-typedef G<U> = num Function<T extends U>(T x);
-
-typedef F<U> = Object Function<T extends U>(T x);
-
-void testSubtype() {
-  num f<T extends num>(T x) => x + 2;
-  dynamic d = f;
-
-  // Check that casting to an equal generic function type works
-  Expect.equals((f as G<num>)(40), 42);
-  Expect.equals((d as G<num>)(40), 42);
-
-  // Check that casting to a more general generic function type works
-  Expect.equals((f as F<num>)(40), 42);
-  Expect.equals((d as F<num>)(40), 42);
-
-  // Check that casting to a generic function with more specific bounds fails
-  Expect.throwsTypeError(
-      () => (f as G<int>), "Generic functions are invariant");
-  Expect.throwsTypeError(
-      () => (d as G<int>), "Generic functions are invariant");
-  Expect.throwsTypeError(
-      () => (f as G<double>), "Generic functions are invariant");
-  Expect.throwsTypeError(
-      () => (d as G<double>), "Generic functions are invariant");
-  Expect.throwsTypeError(
-      () => (f as G<Null>), "Generic functions are invariant");
-  Expect.throwsTypeError(
-      () => (d as G<Null>), "Generic functions are invariant");
-
-  // Check that casting to a generic function with a more general bound fails
-  Expect.throwsTypeError(
-      () => (f as G<Object>), "Generic functions are invariant");
-  Expect.throwsTypeError(
-      () => (d as G<Object>), "Generic functions are invariant");
-
-  // Check that casting to a generic function with an unrelated bound fails
-  Expect.throwsTypeError(
-      () => (f as G<String>), "Generic functions are invariant");
-  Expect.throwsTypeError(
-      () => (d as G<String>), "Generic functions are invariant");
-}
-
-void testToString() {
-  num f<T extends num, U extends T>(T x, U y) => min(x, y);
-  num g<T, U>(T x, U y) => max(x as num, y as num);
-  String h<T, U>(T x, U y) => h.runtimeType.toString();
-
-  // Check that generic method types are printed in a reasonable way
-  Expect.isTrue(
-      new RegExp(r'<(\w+) extends num, (\w+) extends \1>\(\1, \2\) => num')
-          .hasMatch(f.runtimeType.toString()));
-  Expect.isTrue(new RegExp(r'<(\w+), (\w+)>\(\1, \2\) => num')
-      .hasMatch(g.runtimeType.toString()));
-  Expect.isTrue(
-      new RegExp(r'<(\w+), (\w+)>\(\1, \2\) => String').hasMatch(h(42, 123.0)));
-}
-
-main() {
-  testInstantiateToBounds(); //# 01: ok
-  testToString(); //# 02: ok
-  testChecksBound(); //# 03: ok
-  testSubtype(); //# 04: ok
-}
diff --git a/tests/language_2/generic/function_dcall_test.dart b/tests/language_2/generic/function_dcall_test.dart
deleted file mode 100644
index bc73b00c07d..00000000000
--- a/tests/language_2/generic/function_dcall_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-void testCallsToGenericFn() {
-  T f<T>(T a, T b) => ((a as dynamic) + b) as T;
-
-  var x = (f as dynamic)<int>(40, 2);
-  Expect.equals(x, 42);
-
-  var y = (f as dynamic)<String>('hi', '!');
-  Expect.equals(y, 'hi!');
-
-  var dd2d = (x, y) => x;
-  dd2d = f; // implicit <dynamic>
-  x = (dd2d as dynamic)(40, 2);
-  Expect.equals(x, 42);
-  y = (dd2d as dynamic)('hi', '!');
-  Expect.equals(y, 'hi!');
-}
-
-void testGenericFnAsArg() {
-  h<T>(a) => a as T;
-  Object foo(f(Object a), Object a) => f(a);
-  Expect.throws(() => foo(h as dynamic, 42));
-
-  var int2int = (int x) => x;
-  T bar<T>(x) => x as T;
-  dynamic list = <Object>[1, 2, 3];
-  Expect.throws(() => list.map(bar));
-  int2int = bar;
-  Expect.listEquals([1, 2, 3], list.map(int2int).toList());
-}
-
-typedef T2T = T Function<T>(T t);
-void testGenericFnAsGenericFnArg() {
-  h<T>(a) => a as T;
-  S foo<S>(T2T f, S a) => f<S>(a);
-  Expect.equals(foo<int>(h, 42), 42);
-  Expect.equals(foo<dynamic>(h, 42), 42);
-  Expect.equals(foo<int>(h as dynamic, 42), 42);
-  Expect.equals(foo<dynamic>(h as dynamic, 42), 42);
-}
-
-void testGenericFnTypeToString() {
-  T f<T>(T a) => a;
-  Expect.isTrue(
-      f.runtimeType.toString().contains(RegExp(r'<(\w+)>\(\1\) => \1')));
-}
-
-main() {
-  testCallsToGenericFn();
-  testGenericFnAsArg();
-  testGenericFnAsGenericFnArg();
-  testGenericFnTypeToString(); //# 01: ok
-}
diff --git a/tests/language_2/generic/function_subtype_parametrized_typedef_runtime_1_test.dart b/tests/language_2/generic/function_subtype_parametrized_typedef_runtime_1_test.dart
deleted file mode 100644
index 56e3910ee6a..00000000000
--- a/tests/language_2/generic/function_subtype_parametrized_typedef_runtime_1_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test of the subtype relationship that includes parametrized typedefs and
-// invariant occurrences of types.
-
-typedef H<X> = void Function<Y extends X>();
-
-class A {}
-
-class B extends A {}
-
-class C extends B {}
-
-void foo(H<A> ha, H<B> hb, H<C> hc) {
-  H<A> haa = ha;
-
-
-
-
-
-
-
-
-
-
-}
-
-main() {}
diff --git a/tests/language_2/generic/function_subtype_parametrized_typedef_runtime_2_test.dart b/tests/language_2/generic/function_subtype_parametrized_typedef_runtime_2_test.dart
deleted file mode 100644
index 9f93afa43a7..00000000000
--- a/tests/language_2/generic/function_subtype_parametrized_typedef_runtime_2_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test of the subtype relationship that includes parametrized typedefs and
-// invariant occurrences of types.
-
-typedef H<X> = void Function<Y extends X>();
-
-class A {}
-
-class B extends A {}
-
-class C extends B {}
-
-void foo(H<A> ha, H<B> hb, H<C> hc) {
-
-
-
-
-
-  H<B> hbb = hb;
-
-
-
-
-
-}
-
-main() {}
diff --git a/tests/language_2/generic/function_subtype_parametrized_typedef_runtime_3_test.dart b/tests/language_2/generic/function_subtype_parametrized_typedef_runtime_3_test.dart
deleted file mode 100644
index 9c861078e99..00000000000
--- a/tests/language_2/generic/function_subtype_parametrized_typedef_runtime_3_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test of the subtype relationship that includes parametrized typedefs and
-// invariant occurrences of types.
-
-typedef H<X> = void Function<Y extends X>();
-
-class A {}
-
-class B extends A {}
-
-class C extends B {}
-
-void foo(H<A> ha, H<B> hb, H<C> hc) {
-
-
-
-
-
-
-
-
-
-
-  H<C> hcc = hc;
-}
-
-main() {}
diff --git a/tests/language_2/generic/function_subtype_parametrized_typedef_runtime_test.dart b/tests/language_2/generic/function_subtype_parametrized_typedef_runtime_test.dart
deleted file mode 100644
index 7bb124babd9..00000000000
--- a/tests/language_2/generic/function_subtype_parametrized_typedef_runtime_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test of the subtype relationship that includes parametrized typedefs and
-// invariant occurrences of types.
-
-typedef H<X> = void Function<Y extends X>();
-
-class A {}
-
-class B extends A {}
-
-class C extends B {}
-
-void foo(H<A> ha, H<B> hb, H<C> hc) {
-
-
-
-
-
-
-
-
-
-
-
-}
-
-main() {}
diff --git a/tests/language_2/generic/function_subtype_parametrized_typedef_test.dart b/tests/language_2/generic/function_subtype_parametrized_typedef_test.dart
deleted file mode 100644
index 1df3b9d0048..00000000000
--- a/tests/language_2/generic/function_subtype_parametrized_typedef_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test of the subtype relationship that includes parametrized typedefs and
-// invariant occurrences of types.
-
-typedef H<X> = void Function<Y extends X>();
-
-class A {}
-
-class B extends A {}
-
-class C extends B {}
-
-void foo(H<A> ha, H<B> hb, H<C> hc) {
-  H<A> haa = ha;
-  H<A> hab = hb;
-  //         ^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  // [cfe] A value of type 'void Function<Y extends B>()' can't be assigned to a variable of type 'void Function<Y extends A>()'.
-  H<A> hac = hc;
-  //         ^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  // [cfe] A value of type 'void Function<Y extends C>()' can't be assigned to a variable of type 'void Function<Y extends A>()'.
-
-  H<B> hba = ha;
-  //         ^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  // [cfe] A value of type 'void Function<Y extends A>()' can't be assigned to a variable of type 'void Function<Y extends B>()'.
-  H<B> hbb = hb;
-  H<B> hbc = hc;
-  //         ^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  // [cfe] A value of type 'void Function<Y extends C>()' can't be assigned to a variable of type 'void Function<Y extends B>()'.
-
-  H<C> hca = ha;
-  //         ^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  // [cfe] A value of type 'void Function<Y extends A>()' can't be assigned to a variable of type 'void Function<Y extends C>()'.
-  H<C> hcb = hb;
-  //         ^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  // [cfe] A value of type 'void Function<Y extends B>()' can't be assigned to a variable of type 'void Function<Y extends C>()'.
-  H<C> hcc = hc;
-}
-
-main() {}
diff --git a/tests/language_2/generic/function_subtype_runtime_1_test.dart b/tests/language_2/generic/function_subtype_runtime_1_test.dart
deleted file mode 100644
index a69ca1c14b6..00000000000
--- a/tests/language_2/generic/function_subtype_runtime_1_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Simple test of the subtype relationship on generic function types.
-
-typedef F1 = void Function<X1 extends num>();
-typedef F2 = void Function<X2 extends String>();
-
-void f1<Y1 extends num>() {}
-void f2<Y2 extends String>() {}
-
-void foo() {
-  F1 f11 = f1;
-
-
-
-
-}
-
-main() {}
diff --git a/tests/language_2/generic/function_subtype_runtime_2_test.dart b/tests/language_2/generic/function_subtype_runtime_2_test.dart
deleted file mode 100644
index 18f49106063..00000000000
--- a/tests/language_2/generic/function_subtype_runtime_2_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Simple test of the subtype relationship on generic function types.
-
-typedef F1 = void Function<X1 extends num>();
-typedef F2 = void Function<X2 extends String>();
-
-void f1<Y1 extends num>() {}
-void f2<Y2 extends String>() {}
-
-void foo() {
-
-
-
-
-  F2 f22 = f2;
-}
-
-main() {}
diff --git a/tests/language_2/generic/function_subtype_runtime_test.dart b/tests/language_2/generic/function_subtype_runtime_test.dart
deleted file mode 100644
index 9f45d65bedb..00000000000
--- a/tests/language_2/generic/function_subtype_runtime_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Simple test of the subtype relationship on generic function types.
-
-typedef F1 = void Function<X1 extends num>();
-typedef F2 = void Function<X2 extends String>();
-
-void f1<Y1 extends num>() {}
-void f2<Y2 extends String>() {}
-
-void foo() {
-
-
-
-
-
-}
-
-main() {}
diff --git a/tests/language_2/generic/function_subtype_test.dart b/tests/language_2/generic/function_subtype_test.dart
deleted file mode 100644
index 35e543cc662..00000000000
--- a/tests/language_2/generic/function_subtype_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Simple test of the subtype relationship on generic function types.
-
-typedef F1 = void Function<X1 extends num>();
-typedef F2 = void Function<X2 extends String>();
-
-void f1<Y1 extends num>() {}
-void f2<Y2 extends String>() {}
-
-void foo() {
-  F1 f11 = f1;
-  F1 f12 = f2;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  // [cfe] A value of type 'void Function<Y2 extends String>()' can't be assigned to a variable of type 'void Function<X1 extends num>()'.
-
-  F2 f21 = f1;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  // [cfe] A value of type 'void Function<Y1 extends num>()' can't be assigned to a variable of type 'void Function<X2 extends String>()'.
-  F2 f22 = f2;
-}
-
-main() {}
diff --git a/tests/language_2/generic/function_type_as_type_argument_runtime_1_test.dart b/tests/language_2/generic/function_type_as_type_argument_runtime_1_test.dart
deleted file mode 100644
index 0feeeb1c448..00000000000
--- a/tests/language_2/generic/function_type_as_type_argument_runtime_1_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// VMOptions=--reify-generic-functions
-
-import "package:expect/expect.dart";
-
-T foo<T>(T i) => i;
-
-void main() {
-  Expect.equals(42, foo<int>(42));
-
-  var bar = foo;
-  Expect.equals(42, bar<int>(42));
-
-  // Generic function types are not allowed as type arguments.
-
-
-  // Type inference must also give an error.
-
-
-  // No error if illegal type cannot be inferred.
-  var dynamicList = <dynamic>[foo];
-  Expect.equals(42, (dynamicList[0] as T Function<T>(T))<int>(42));
-}
diff --git a/tests/language_2/generic/function_type_as_type_argument_runtime_test.dart b/tests/language_2/generic/function_type_as_type_argument_runtime_test.dart
deleted file mode 100644
index c5f49119921..00000000000
--- a/tests/language_2/generic/function_type_as_type_argument_runtime_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// VMOptions=--reify-generic-functions
-
-import "package:expect/expect.dart";
-
-T foo<T>(T i) => i;
-
-void main() {
-  Expect.equals(42, foo<int>(42));
-
-  var bar = foo;
-  Expect.equals(42, bar<int>(42));
-
-  // Generic function types are not allowed as type arguments.
-
-
-  // Type inference must also give an error.
-
-
-  // No error if illegal type cannot be inferred.
-
-
-}
diff --git a/tests/language_2/generic/function_type_as_type_argument_test.dart b/tests/language_2/generic/function_type_as_type_argument_test.dart
deleted file mode 100644
index 6dcc8f70393..00000000000
--- a/tests/language_2/generic/function_type_as_type_argument_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// VMOptions=--reify-generic-functions
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-T foo<T>(T i) => i;
-
-void main() {
-  Expect.equals(42, foo<int>(42));
-
-  var bar = foo;
-  Expect.equals(42, bar<int>(42));
-
-  // Generic function types are not allowed as type arguments.
-  List<T Function<T>(T)> typedList = <T Function<T>(T)>[foo];
-//^
-// [cfe] A generic function type can't be used as a type argument.
-//     ^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.GENERIC_FUNCTION_TYPE_CANNOT_BE_TYPE_ARGUMENT
-
-  // Type inference must also give an error.
-  var inferredList = [foo];
-  //                 ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.COULD_NOT_INFER
-  // [cfe] Generic function type 'T Function<T>(T)' inferred as a type argument.
-
-  // No error if illegal type cannot be inferred.
-  var dynamicList = <dynamic>[foo];
-  Expect.equals(42, (dynamicList[0] as T Function<T>(T))<int>(42));
-}
diff --git a/tests/language_2/generic/function_typedef2_runtime_test.dart b/tests/language_2/generic/function_typedef2_runtime_test.dart
deleted file mode 100644
index 9e39010f0c5..00000000000
--- a/tests/language_2/generic/function_typedef2_runtime_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for a function type test that cannot be eliminated at compile time.
-
-import "package:expect/expect.dart";
-
-class A {}
-
-typedef int F();
-
-
-
-
-
-typedef K = Function(
-    Function<A>(A
-
-        ));
-typedef L = Function(
-    {
-
-    bool
-
-        x});
-
-typedef M = Function(
-    {
-
-    bool
-
-        int});
-
-foo({bool int}) {}
-main() {
-  bool b = true;
-  Expect.isFalse(b is L);
-  Expect.isFalse(b is M);
-  Expect.isTrue(foo is M);
-}
diff --git a/tests/language_2/generic/function_typedef2_test.dart b/tests/language_2/generic/function_typedef2_test.dart
deleted file mode 100644
index b82b29cbef0..00000000000
--- a/tests/language_2/generic/function_typedef2_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for a function type test that cannot be eliminated at compile time.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-typedef int F();
-
-typedef G = F;
-//        ^
-// [analyzer] SYNTACTIC_ERROR.EXPERIMENT_NOT_ENABLED
-// [cfe] Can't create typedef from non-function type.
-typedef H = int;
-//        ^
-// [analyzer] SYNTACTIC_ERROR.EXPERIMENT_NOT_ENABLED
-// [cfe] Can't create typedef from non-function type.
-typedef I = A;
-//        ^
-// [analyzer] SYNTACTIC_ERROR.EXPERIMENT_NOT_ENABLED
-// [cfe] Can't create typedef from non-function type.
-typedef J = List<int>;
-//        ^
-// [analyzer] SYNTACTIC_ERROR.EXPERIMENT_NOT_ENABLED
-// [cfe] Can't create typedef from non-function type.
-typedef K = Function(Function<A>(A<int>));
-//                               ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-// [cfe] Can't use type arguments with type variable 'A'.
-typedef L = Function({x});
-//                    ^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_CLASS
-// [cfe] Type 'x' not found.
-//                     ^
-// [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-// [cfe] Expected an identifier, but got '}'.
-
-typedef M = Function({int});
-        //               ^
-        // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-        // [cfe] Expected an identifier, but got '}'.
-
-foo({bool int}) {}
-main() {
-  bool b = true;
-  Expect.isFalse(b is L);
-  Expect.isFalse(b is M);
-  Expect.isTrue(foo is M);
-}
diff --git a/tests/language_2/generic/function_typedef_test.dart b/tests/language_2/generic/function_typedef_test.dart
deleted file mode 100644
index 1902ad1b9c6..00000000000
--- a/tests/language_2/generic/function_typedef_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for a function type test that cannot be eliminated at compile time.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-typedef F<S> = Function(List<S>, Function(String), num);
-typedef G<T> = Function<S>(List<S>, Function<A>(A), T);
-
-foo(List<dynamic> x, bar(String y), num z) {}
-foo2(List<int> x, bar(String y), num z) {}
-foo3<T>(List<T> x, Function<S>(S) y, num z) {}
-
-main() {
-  Expect.isTrue(foo is F);
-  Expect.isTrue(foo is F<int>);
-  Expect.isTrue(foo is F<bool>);
-
-  Expect.isFalse(foo2 is F, //# 01: ok
-      "sound function types: cannot allow passing List to List<int>"); //# 01: ok
-  Expect.isTrue(foo2 is F<int>);
-  Expect.isFalse(foo2 is F<bool>);
-
-  Expect.isFalse(foo3 is F); //# 01: ok
-  Expect.isFalse(foo3 is F<int>); //# 01: ok
-  Expect.isFalse(foo3 is F<bool>); //# 01: ok
-
-  Expect.isFalse(foo is G); //# 01: ok
-  Expect.isFalse(foo is G<int>); //# 01: ok
-  Expect.isFalse(foo is G<bool>);
-
-  Expect.isFalse(foo2 is G); //# 01: ok
-  Expect.isFalse(foo2 is G<int>); //# 01: ok
-  Expect.isFalse(foo2 is G<bool>);
-
-  Expect.isFalse(foo3 is G<Object>, //# 01: ok
-      "sound function types: cannot allow passing any Object to num"); //# 01: ok
-  Expect.isTrue(foo3 is G<int>);
-  Expect.isFalse(foo3 is G<bool>);
-}
diff --git a/tests/language_2/generic/functions_test.dart b/tests/language_2/generic/functions_test.dart
deleted file mode 100644
index 16f674afdcb..00000000000
--- a/tests/language_2/generic/functions_test.dart
+++ /dev/null
@@ -1,105 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Dart test verifying that the parser can handle type parameterization of
-/// function declarations and function invocations. Variant of code from
-/// DEP #22, adjusted to use generic top level functions.
-
-library generic_functions_test;
-
-import "package:expect/expect.dart";
-
-class BinaryTreeNode<K extends Comparable<K>, V> {
-  final K _key;
-  final V _value;
-  final BinaryTreeNode<K, V> _left;
-  final BinaryTreeNode<K, V> _right;
-
-  BinaryTreeNode(this._key, this._value,
-      {BinaryTreeNode<K, V> left: null, BinaryTreeNode<K, V> right: null})
-      : _left = left,
-        _right = right;
-
-  BinaryTreeNode<K, V> insert(K key, V value) {
-    int c = key.compareTo(_key);
-    if (c == 0) return this;
-    var _insert = (BinaryTreeNode<K, V> t, K key, V value) =>
-        insertOpt<K, V>(t, key, value);
-    BinaryTreeNode<K, V> left = _left;
-    BinaryTreeNode<K, V> right = _right;
-    if (c < 0) {
-      left = _insert(_left, key, value);
-    } else {
-      right = _insert(_right, key, value);
-    }
-    return new BinaryTreeNode<K, V>(_key, _value, left: left, right: right);
-  }
-
-  BinaryTreeNode<K, U> map<U>(U f(V x)) {
-    var _map = (BinaryTreeNode<K, V> t, U f(V x)) => mapOpt<K, V, U>(t, f);
-    return new BinaryTreeNode<K, U>(_key, f(_value),
-        left: _map(_left, f), right: _map(_right, f));
-  }
-
-  S foldPre<S>(S init, S f(V t, S s)) {
-    var _fold = (BinaryTreeNode<K, V> t, S s, S f(V t, S s)) =>
-        foldPreOpt<K, V, S>(t, s, f);
-    S s = init;
-    s = f(_value, s);
-    s = _fold(_left, s, f);
-    s = _fold(_right, s, f);
-    return s;
-  }
-}
-
-BinaryTreeNode<K2, V2> insertOpt<K2 extends Comparable<K2>, V2>(
-    BinaryTreeNode<K2, V2> t, K2 key, V2 value) {
-  return (t == null) ? new BinaryTreeNode(key, value) : t.insert(key, value);
-}
-
-BinaryTreeNode<K, U> mapOpt<K extends Comparable<K>, V, U>(
-    BinaryTreeNode<K, V> t, U f(V x)) {
-  return (t == null) ? null : t.map<U>(f);
-}
-
-S foldPreOpt<K2 extends Comparable<K2>, V, S>(
-    BinaryTreeNode<K2, V> t, S init, S f(V t, S s)) {
-  return (t == null) ? init : t.foldPre<S>(init, f);
-}
-
-class BinaryTree<K extends Comparable<K>, V> {
-  final BinaryTreeNode<K, V> _root;
-
-  BinaryTree._internal(this._root);
-  BinaryTree.empty() : this._internal(null);
-
-  BinaryTree<K, V> insert(K key, V value) {
-    BinaryTreeNode<K, V> root = insertOpt<K, V>(_root, key, value);
-    return new BinaryTree<K, V>._internal(root);
-  }
-
-  BinaryTree<K, U> map<U>(U f(V x)) {
-    BinaryTreeNode<K, U> root = mapOpt<K, V, U>(_root, f);
-    return new BinaryTree<K, U>._internal(root);
-  }
-
-  S foldPre<S>(S init, S f(V t, S s)) {
-    return foldPreOpt<K, V, S>(_root, init, f);
-  }
-}
-
-main() {
-  BinaryTree<num, String> sT = new BinaryTree<num, String>.empty();
-
-  sT = sT.insert(0, "");
-  sT = sT.insert(1, " ");
-  sT = sT.insert(2, "  ");
-  sT = sT.insert(3, "   ");
-
-  BinaryTree<num, num> iT = sT.map<num>((String s) => s.length);
-
-  Expect.equals(iT.foldPre<num>(0, (num i, num s) => i + s), 6);
-}
diff --git a/tests/language_2/generic/generic2_test.dart b/tests/language_2/generic/generic2_test.dart
deleted file mode 100644
index 7416bd93795..00000000000
--- a/tests/language_2/generic/generic2_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test is-tests with type variables.
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  foo(o) => o is T;
-}
-
-class B {}
-
-class C extends A<int> {}
-
-main() {
-  Expect.isTrue(new A<Object>().foo(new B()));
-  Expect.isTrue(new A<Object>().foo(1));
-  Expect.isFalse(new A<int>().foo(new Object()));
-  Expect.isFalse(new A<int>().foo('hest'));
-  Expect.isTrue(new A<B>().foo(new B()));
-  Expect.isFalse(new A<B>().foo(new Object()));
-  Expect.isFalse(new A<B>().foo(1));
-  Expect.isTrue(new C().foo(1));
-  Expect.isFalse(new C().foo(new Object()));
-  Expect.isFalse(new C().foo('hest'));
-  Expect.isTrue(new A<List<int>>().foo(<int>[]));
-  Expect.isFalse(new A<List<int>>().foo(<String>[]));
-}
diff --git a/tests/language_2/generic/generic_test.dart b/tests/language_2/generic/generic_test.dart
deleted file mode 100644
index 9f4820e308f..00000000000
--- a/tests/language_2/generic/generic_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Dart test program testing generic type allocations and generic type tests.
-import "package:expect/expect.dart";
-
-class A {
-  const A();
-}
-
-class AA extends A {
-  const AA();
-}
-
-class AX {
-  const AX();
-}
-
-class B<T extends A> {
-  final A a_;
-  final T t_;
-  const B(T t)
-      : a_ = t,
-        t_ = t;
-  isT(x) {
-    return x is T;
-  }
-}
-
-class C<T extends A> {
-  B<T> b_;
-  C(T t) : b_ = new B<T>(t) {}
-}
-
-class D {
-  C<AA> caa_;
-  D() : caa_ = new C<AA>(const AA()) {}
-}
-
-class E {
-  C<AX> cax_ = new C<AX>(const AX()); //# 01: compile-time error
-}
-
-main() {
-  D d = new D();
-  Expect.equals(true, d.caa_.b_ is B<AA>);
-  Expect.equals(true, d.caa_.b_.isT(const AA()));
-  C c = new C(const AA()); // inferred as `C<A>` because of the `extends A`.
-  Expect.equals(true, c is C<A>);
-  Expect.equals(false, c is C<AA>, 'C<A> is not a subtype of C<AA>');
-  Expect.equals(true, c.b_ is B);
-  Expect.equals(false, c.b_ is B<AA>);
-  Expect.equals(true, c.b_.isT(const AA()), 'AA is a subtype of A');
-  Expect.equals(false, c.b_.isT(const AX()), 'AX is not a subtype of A');
-  new E();
-}
diff --git a/tests/language_2/generic/generics2_test.dart b/tests/language_2/generic/generics2_test.dart
deleted file mode 100644
index c2699dd203b..00000000000
--- a/tests/language_2/generic/generics2_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--enable_type_checks
-//
-// Dart test program testing generic type allocations and generic type tests.
-
-// @dart = 2.9
-
-class A<E> {}
-
-class Pair<P, Q> extends A /* i.e. extends A<dynamic> */ {
-  final P fst;
-  final Q snd;
-  Pair(this.fst, this.snd);
-}
-
-main() {
-  print(new Pair<int, int>(1, 2));
-  print(new Pair<String, int>("1", 2));
-}
diff --git a/tests/language_2/generic/generics3_test.dart b/tests/language_2/generic/generics3_test.dart
deleted file mode 100644
index 0d7f7759ba0..00000000000
--- a/tests/language_2/generic/generics3_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program testing generic type allocations and generic type tests.
-// Regression test for issue 8710.
-
-// @dart = 2.9
-
-class C1<T> {}
-
-class C2<T> {}
-
-class C3<T> extends C2<C1<T>> {}
-
-class C4<T> extends C3<T> {
-  f() => new C5<C1<T>>(new C1<T>());
-}
-
-class C5<T> {
-  C5(T x);
-} // Checked mode: x must be of type C1<String>.
-
-main() {
-  new C4<String>().f();
-}
diff --git a/tests/language_2/generic/generics_test.dart b/tests/language_2/generic/generics_test.dart
deleted file mode 100644
index 2d653098ddc..00000000000
--- a/tests/language_2/generic/generics_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for generic types.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class GenericsTest<T, V> implements Map<int, int> {
-  static int myFunc(bool a, bool b) {
-    Expect.equals(true, a);
-    Expect.equals(false, b);
-    return 42;
-  }
-
-  static void testMain() {
-    int a = 1;
-    int b = 2;
-    int c = 3;
-    int d = 4;
-    Expect.equals(true, a < b);
-    Expect.equals(42, myFunc(a < b, c > d));
-    Map<int, int> e;
-    GenericsTest<int, GenericsTest<int, int>> f;
-
-    e = new Map();
-    takesMapMethod(e);
-    Expect.equals(2, e[0]);
-    Map h = new Map<int, int>();
-  }
-
-  static void takesMapMethod(Map<int, int> m) {
-    m[0] = 2;
-  }
-
-  Map<int, int> returnMap() {
-    return null;
-  }
-}
-
-class LongGeneric<A, B, C> {}
-
-class LongerGeneric<A, B, C, D, E, F, G, H, I, J> {
-  void func() {
-    LongGeneric<String, A, LongGeneric<C, List<E>, Map<G, Map<I, J>>>> id;
-
-    LongGeneric<num, Map<int, int>,
-        LongGeneric<C, List<E>, Map<G, LongGeneric<I, J, List<A>>>>> id2;
-  }
-}
-
-main() {
-  GenericsTest.testMain();
-}
diff --git a/tests/language_2/generic/inheritance_test.dart b/tests/language_2/generic/inheritance_test.dart
deleted file mode 100644
index a46f3f98195..00000000000
--- a/tests/language_2/generic/inheritance_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Test verifying that the type argument vector of subclasses are properly
-// initialized by the class finalizer.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  A();
-}
-
-class B extends A<Object> {
-  B();
-}
-
-class C extends B {
-  C();
-}
-
-main() {
-  var a = new A<String>();
-  var b = new B();
-  var c = new C();
-  Expect.isTrue(a is Object);
-  Expect.isTrue(a is A<Object>);
-  Expect.isTrue(a is A<String>);
-  Expect.isTrue(a is! A<int>);
-  Expect.isTrue(b is Object);
-  Expect.isTrue(b is A<Object>);
-  Expect.isTrue(b is! A<String>);
-  Expect.isTrue(b is Object);
-  Expect.isTrue(c is Object);
-  Expect.isTrue(c is A<Object>);
-  Expect.isTrue(c is! A<String>);
-  Expect.isTrue(c is B);
-}
diff --git a/tests/language_2/generic/instanceof.dart b/tests/language_2/generic/instanceof.dart
deleted file mode 100644
index 2d62881a586..00000000000
--- a/tests/language_2/generic/instanceof.dart
+++ /dev/null
@@ -1,132 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test that instanceof works correctly with type variables.
-
-// @dart = 2.9
-
-part of GenericInstanceofTest.dart;
-
-class Foo<T> {
-  Foo() {}
-
-  bool isT(x) {
-    // Untyped parameter to ensure that the static type
-    // does not affect the result.
-    return x is T;
-  }
-
-  bool isListT(x) {
-    return x is List<T>;
-  }
-}
-
-class GenericInstanceof {
-  static void testMain() {
-    // Using Object instead of String to ensure that the static type
-    // does not affect the result.
-    Foo<Object> fooObject = new Foo<String>();
-    Expect.equals(true, fooObject.isT("string"));
-    Expect.equals(false, fooObject.isT(1));
-
-    Foo<String> fooString = new Foo<String>();
-    Expect.equals(true, fooString.isT("string"));
-    Expect.equals(false, fooString.isT(1));
-
-    // Not providing a type argument to ensure that the static type
-    // does not affect the result.
-    {
-      Foo foo = new Foo<String>();
-      Expect.equals(true, foo.isT("string"));
-      Expect.equals(false, foo.isT(1));
-    }
-    {
-      Foo foo = new Foo();
-      Expect.equals(true, foo.isT(new List<dynamic>.filled(5, null)));
-      Expect.equals(true, foo.isT(new List<Object>.filled(5, null)));
-      Expect.equals(true, foo.isT(new List<int>.filled(5, null)));
-      Expect.equals(true, foo.isT(new List<num>.filled(5, null)));
-      Expect.equals(true, foo.isT(new List<String>.filled(5, null)));
-    }
-    {
-      Foo foo = new Foo<List>();
-      Expect.equals(true, foo.isT(new List<dynamic>.filled(5, null)));
-      Expect.equals(true, foo.isT(new List<Object>.filled(5, null)));
-      Expect.equals(true, foo.isT(new List<int>.filled(5, null)));
-      Expect.equals(true, foo.isT(new List<num>.filled(5, null)));
-      Expect.equals(true, foo.isT(new List<String>.filled(5, null)));
-    }
-    {
-      Foo foo = new Foo<List<Object>>();
-      Expect.equals(true, foo.isT(new List<dynamic>.filled(5, null)));
-      Expect.equals(true, foo.isT(new List<Object>.filled(5, null)));
-      Expect.equals(true, foo.isT(new List<int>.filled(5, null)));
-      Expect.equals(true, foo.isT(new List<num>.filled(5, null)));
-      Expect.equals(true, foo.isT(new List<String>.filled(5, null)));
-    }
-    {
-      Foo foo = new Foo<List<int>>();
-      Expect.equals(false, foo.isT(new List<dynamic>.filled(5, null)));
-      Expect.equals(false, foo.isT(new List<Object>.filled(5, null)));
-      Expect.equals(true, foo.isT(new List<int>.filled(5, null)));
-      Expect.equals(false, foo.isT(new List<num>.filled(5, null)));
-      Expect.equals(false, foo.isT(new List<String>.filled(5, null)));
-    }
-    {
-      Foo foo = new Foo<List<num>>();
-      Expect.equals(false, foo.isT(new List<dynamic>.filled(5, null)));
-      Expect.equals(false, foo.isT(new List<Object>.filled(5, null)));
-      Expect.equals(true, foo.isT(new List<int>.filled(5, null)));
-      Expect.equals(true, foo.isT(new List<num>.filled(5, null)));
-      Expect.equals(false, foo.isT(new List<String>.filled(5, null)));
-    }
-    {
-      Foo foo = new Foo<List<String>>();
-      Expect.equals(false, foo.isT(new List<dynamic>.filled(5, null)));
-      Expect.equals(false, foo.isT(new List<Object>.filled(5, null)));
-      Expect.equals(false, foo.isT(new List<int>.filled(5, null)));
-      Expect.equals(false, foo.isT(new List<num>.filled(5, null)));
-      Expect.equals(true, foo.isT(new List<String>.filled(5, null)));
-    }
-    {
-      Foo foo = new Foo();
-      Expect.equals(true, foo.isListT(new List<dynamic>.filled(5, null)));
-      Expect.equals(true, foo.isListT(new List<Object>.filled(5, null)));
-      Expect.equals(true, foo.isListT(new List<int>.filled(5, null)));
-      Expect.equals(true, foo.isListT(new List<num>.filled(5, null)));
-      Expect.equals(true, foo.isListT(new List<String>.filled(5, null)));
-    }
-    {
-      Foo foo = new Foo<Object>();
-      Expect.equals(true, foo.isListT(new List<dynamic>.filled(5, null)));
-      Expect.equals(true, foo.isListT(new List<Object>.filled(5, null)));
-      Expect.equals(true, foo.isListT(new List<int>.filled(5, null)));
-      Expect.equals(true, foo.isListT(new List<num>.filled(5, null)));
-      Expect.equals(true, foo.isListT(new List<String>.filled(5, null)));
-    }
-    {
-      Foo foo = new Foo<int>();
-      Expect.equals(false, foo.isListT(new List<dynamic>.filled(5, null)));
-      Expect.equals(false, foo.isListT(new List<Object>.filled(5, null)));
-      Expect.equals(true, foo.isListT(new List<int>.filled(5, null)));
-      Expect.equals(false, foo.isListT(new List<num>.filled(5, null)));
-      Expect.equals(false, foo.isListT(new List<String>.filled(5, null)));
-    }
-    {
-      Foo foo = new Foo<num>();
-      Expect.equals(false, foo.isListT(new List<dynamic>.filled(5, null)));
-      Expect.equals(false, foo.isListT(new List<Object>.filled(5, null)));
-      Expect.equals(true, foo.isListT(new List<int>.filled(5, null)));
-      Expect.equals(true, foo.isListT(new List<num>.filled(5, null)));
-      Expect.equals(false, foo.isListT(new List<String>.filled(5, null)));
-    }
-    {
-      Foo foo = new Foo<String>();
-      Expect.equals(false, foo.isListT(new List<dynamic>.filled(5, null)));
-      Expect.equals(false, foo.isListT(new List<Object>.filled(5, null)));
-      Expect.equals(false, foo.isListT(new List<int>.filled(5, null)));
-      Expect.equals(false, foo.isListT(new List<num>.filled(5, null)));
-      Expect.equals(true, foo.isListT(new List<String>.filled(5, null)));
-    }
-  }
-}
diff --git a/tests/language_2/generic/instanceof2_test.dart b/tests/language_2/generic/instanceof2_test.dart
deleted file mode 100644
index 36dbf286fa4..00000000000
--- a/tests/language_2/generic/instanceof2_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test that instanceof works correctly with type variables.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that partially typed generic instances are correctly constructed.
-
-// Test factory case.
-class Foo<K, V> {
-  Foo() {}
-
-  factory Foo.fac() {
-    return new Foo<K, V>();
-  }
-
-  FooString() {
-    return new Foo<K, String>.fac();
-  }
-}
-
-// Test constructor case.
-class Moo<K, V> {
-  Moo() {}
-
-  MooString() {
-    return new Moo<K, String>();
-  }
-}
-
-testAll() {
-  var foo_int_num = new Foo<int, num>();
-  Expect.isTrue(foo_int_num is Foo<int, num>);
-  Expect.isTrue(foo_int_num is! Foo<int, String>);
-  // foo_int_num.FooString() returns a Foo<int, String>
-  Expect.isTrue(foo_int_num.FooString() is! Foo<int, num>);
-  Expect.isTrue(foo_int_num.FooString() is Foo<int, String>);
-
-  var foo_raw = new Foo();
-  Expect.isTrue(foo_raw is! Foo<int, num>);
-  Expect.isTrue(foo_raw is! Foo<int, String>);
-  Expect.isTrue(foo_raw is Foo<dynamic, dynamic>);
-  // foo_raw.FooString() returns a Foo<dynamic, String>
-  Expect.isTrue(foo_raw.FooString() is! Foo<int, num>);
-  Expect.isTrue(foo_raw.FooString() is! Foo<int, String>);
-  Expect.isTrue(foo_raw.FooString() is Foo<dynamic, String>);
-
-  var moo_int_num = new Moo<int, num>();
-  Expect.isTrue(moo_int_num is Moo<int, num>);
-  Expect.isTrue(moo_int_num is! Moo<int, String>);
-  // moo_int_num.MooString() returns a Moo<int, String>
-  Expect.isTrue(moo_int_num.MooString() is! Moo<int, num>);
-  Expect.isTrue(moo_int_num.MooString() is Moo<int, String>);
-
-  var moo_raw = new Moo();
-  Expect.isTrue(moo_raw is! Moo<int, num>);
-  Expect.isTrue(moo_raw is! Moo<int, String>);
-  Expect.isTrue(moo_raw is Moo<dynamic, dynamic>);
-  // moo_raw.MooString() returns a Moo<dynamic, String>
-  Expect.isTrue(moo_raw.MooString() is! Moo<int, num>);
-  Expect.isTrue(moo_raw.MooString() is! Moo<int, String>);
-  Expect.isTrue(moo_raw.MooString() is Moo<dynamic, String>);
-}
-
-main() {
-  // Repeat type checks so that inlined tests can be tested as well.
-  for (int i = 0; i < 5; i++) {
-    testAll();
-  }
-}
diff --git a/tests/language_2/generic/instanceof3_test.dart b/tests/language_2/generic/instanceof3_test.dart
deleted file mode 100644
index 3d896383a26..00000000000
--- a/tests/language_2/generic/instanceof3_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing the instanceof operation.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Tests involving generics.
-
-abstract class I<T> {}
-
-class A implements I<bool> {}
-
-class B<T> implements I<bool> {}
-
-abstract class K<T> {}
-
-abstract class L<T> extends K<bool> {}
-
-class C implements L<String> {}
-
-class D implements B<String> {}
-
-main() {
-  var a = new A();
-  var b = new B<String>();
-  var c = new C();
-  var d = new D();
-  // Repeat type checks so that inlined tests can be tested as well.
-  for (int i = 0; i < 5; i++) {
-    Expect.isFalse(a is I<String>);
-    Expect.isTrue(a is I<bool>);
-    Expect.isFalse(b is I<String>);
-    Expect.isFalse(c is K<String>);
-    Expect.isFalse(c is K<String>);
-    Expect.isTrue(c is L<String>);
-    Expect.isFalse(c is L<bool>);
-    Expect.isTrue(c is K<bool>);
-    Expect.isFalse(c is K<String>);
-    Expect.isFalse(d is I<String>);
-    Expect.isTrue(d is I<bool>);
-  }
-}
diff --git a/tests/language_2/generic/instanceof4_test.dart b/tests/language_2/generic/instanceof4_test.dart
deleted file mode 100644
index fca5b802060..00000000000
--- a/tests/language_2/generic/instanceof4_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test that instanceof works correctly with type variables.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  foo(x) {
-    // Don't inline.
-    if (new DateTime.now().millisecondsSinceEpoch == 42) return foo(x);
-    return x is T;
-  }
-}
-
-class BB {}
-
-class B<T> implements BB {
-  foo() {
-    // Don't inline.
-    if (new DateTime.now().millisecondsSinceEpoch == 42) return foo();
-    return new A<T>().foo(new B());
-  }
-}
-
-main() {
-  Expect.isTrue(new B<BB>().foo());
-}
diff --git a/tests/language_2/generic/instanceof5_test.dart b/tests/language_2/generic/instanceof5_test.dart
deleted file mode 100644
index 425011ad0fc..00000000000
--- a/tests/language_2/generic/instanceof5_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test that instanceof works correctly with type variables.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B<T, S> {}
-
-class C<U, V> extends A with B<V, U> {}
-
-class D<T> {
-  foo(x) {
-    // Avoid inlining.
-    if (new DateTime.now().millisecondsSinceEpoch == 42) foo(x);
-    return x is T;
-    return true; // Avoid inlining.
-  }
-}
-
-main() {
-  Expect.isTrue(new D<B<int, bool>>().foo(new C<bool, int>()));
-}
diff --git a/tests/language_2/generic/instanceof_test.dart b/tests/language_2/generic/instanceof_test.dart
deleted file mode 100644
index 49f6f5b4f20..00000000000
--- a/tests/language_2/generic/instanceof_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test that instanceof works correctly with type variables.
-
-// @dart = 2.9
-
-library GenericInstanceofTest.dart;
-
-import "package:expect/expect.dart";
-part "instanceof.dart";
-
-main() {
-  // Repeat type checks so that inlined tests can be tested as well.
-  for (int i = 0; i < 5; i++) {
-    GenericInstanceof.testMain();
-  }
-}
diff --git a/tests/language_2/generic/instantiate_tearoff_after_contravariance_check_test.dart b/tests/language_2/generic/instantiate_tearoff_after_contravariance_check_test.dart
deleted file mode 100644
index 2ed97b2d827..00000000000
--- a/tests/language_2/generic/instantiate_tearoff_after_contravariance_check_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-class C<T> {
-  void Function(T) f<U>(U x) => (y) {};
-}
-
-void test(C<A> cA, C<A> cB) {
-  // Tear-off of c.f needs to be type checked due to contravariance.  The
-  // instantiation should occur after the type check, so if the type is wrong we
-  // should get a type error.
-  void Function(A) Function(int) tearoffOfCA = cA.f;
-  Expect.throwsTypeError(() {
-    void Function(A) Function(int) tearoffOfCB = cB.f;
-  });
-}
-
-main() {
-  test(new C<A>(), new C<B>());
-}
diff --git a/tests/language_2/generic/instantiate_tearoff_of_call_test.dart b/tests/language_2/generic/instantiate_tearoff_of_call_test.dart
deleted file mode 100644
index 55643beeef6..00000000000
--- a/tests/language_2/generic/instantiate_tearoff_of_call_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-T f<T>(T x) => x;
-
-void test(T Function<T>(T) f) {
-  int Function(int) intFunc = f.call;
-  dynamic intFuncDynamic = intFunc;
-  Expect.isTrue(intFuncDynamic is int Function(int));
-  Expect.isFalse(intFuncDynamic is String Function(String));
-  Expect.equals(intFuncDynamic(1), 1);
-  Expect.throwsTypeError(() {
-    intFuncDynamic('oops');
-  });
-  String Function(String) stringFunc = f.call;
-  dynamic stringFuncDynamic = stringFunc;
-  Expect.isTrue(stringFuncDynamic is String Function(String));
-  Expect.isFalse(stringFuncDynamic is int Function(int));
-  Expect.equals(stringFuncDynamic('hello'), 'hello');
-  Expect.throwsTypeError(() {
-    stringFuncDynamic(1);
-  });
-}
-
-main() {
-  test(f);
-}
diff --git a/tests/language_2/generic/instantiate_tearoff_test.dart b/tests/language_2/generic/instantiate_tearoff_test.dart
deleted file mode 100644
index ed27adbce28..00000000000
--- a/tests/language_2/generic/instantiate_tearoff_test.dart
+++ /dev/null
@@ -1,70 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--lazy-dispatchers
-// VMOptions=--no-lazy-dispatchers
-
-import "package:expect/expect.dart";
-
-T f<T>(T x) => x;
-
-int intToInt(int x) => x;
-String stringToString(String x) => x;
-String stringAndIntToString(String x, int y) => x;
-
-test(intFuncDynamic, stringFuncDynamic, dynamicFuncDynamic) {
-  Expect.isTrue(intFuncDynamic is int Function(int));
-  Expect.isFalse(intFuncDynamic is String Function(String));
-  Expect.equals(intFuncDynamic(1), 1);
-  Expect.equals("${intFuncDynamic.runtimeType}", "${intToInt.runtimeType}");
-  Expect.throwsTypeError(() {
-    intFuncDynamic('oops');
-  });
-  Expect.throwsNoSuchMethodError(() {
-    intFuncDynamic<String>('oops');
-  });
-  Expect.isTrue(stringFuncDynamic is String Function(String));
-  Expect.isFalse(stringFuncDynamic is int Function(int));
-  Expect.equals(stringFuncDynamic('hello'), 'hello');
-  Expect.equals(
-      "${stringFuncDynamic.runtimeType}", "${stringToString.runtimeType}");
-  Expect.throwsTypeError(() {
-    stringFuncDynamic(1);
-  });
-  Expect.throwsNoSuchMethodError(() {
-    stringFuncDynamic<int>(1);
-  });
-  Expect.throwsNoSuchMethodError(() {
-    dynamicFuncDynamic<int>(1);
-  });
-}
-
-main() {
-  int Function(int) if1 = f;
-  String Function(String) sf1 = f;
-  dynamic Function(dynamic) df1 = f;
-  test(if1, sf1, df1);
-
-  T local<T>(T x) => x;
-
-  int Function(int) if2 = local;
-  String Function(String) sf2 = local;
-  dynamic Function(dynamic) df2 = local;
-  test(if2, sf2, df2);
-
-  dynamic bar<X>() {
-    String foo<T>(X x, T t) {
-      return "$X, $T";
-    }
-
-    String Function(X, int) x = foo;
-    return x;
-  }
-
-  dynamic fn = bar<String>();
-  Expect.equals("${fn.runtimeType}", "${stringAndIntToString.runtimeType}");
-  Expect.equals(fn("a", 1), "String, int");
-}
diff --git a/tests/language_2/generic/instantiate_to_bounds_super_bounded_test.dart b/tests/language_2/generic/instantiate_to_bounds_super_bounded_test.dart
deleted file mode 100644
index 3d8c9f9ca93..00000000000
--- a/tests/language_2/generic/instantiate_to_bounds_super_bounded_test.dart
+++ /dev/null
@@ -1,145 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that when a super-bounded type is produced by instantiate-to-bounds,
-// it's properly allowed or rejected depending on the context in which it's
-// used.
-
-// Raw `A` will be instantiated to `A<B<dynamic>>`, which is super-bounded.
-class A<T extends B<T>> extends Base {
-  const A();
-}
-
-class B<T> {}
-
-class Base {
-  const Base();
-
-  factory Base.test() = A; //# 01: compile-time error
-}
-
-typedef void OldStyleTypedef<T>();
-
-typedef NewStyleTypedef<T> = void Function();
-
-void genericFunction<T>() {}
-
-mixin Mixin {}
-
-class C {
-  dynamic field;
-
-  void genericMethod<T>() {}
-
-  A test; //# 02: ok
-
-  A test() {} //# 03: ok
-
-  void test(A param()) {} //# 04: ok
-
-  void test(A param) {} //# 05: ok
-
-  void test([A param]) {} //# 06: ok
-
-  void test({A param}) {} //# 07: ok
-
-  C(A param()); //# 08: ok
-
-  C(A this.field); //# 09: ok
-
-  C(A param); //# 10: ok
-
-  C([A param]); //# 11: ok
-
-  C({A param}); //# 12: ok
-}
-
-class Test extends B<A> {} //# 13: ok
-
-class Test extends A {} //# 14: compile-time error
-
-class Test implements A {} //# 15: compile-time error
-
-class Test extends Object with A {} //# 16: compile-time error
-
-class Test = A with Mixin; //# 17: compile-time error
-
-class Test = Object with Mixin implements A; //# 18: compile-time error
-
-class Test = Object with A; //# 19: compile-time error
-
-mixin Test implements A {} //# 20: compile-time error
-
-mixin Test on A {} //# 21: compile-time error
-
-A test; //# 22: ok
-
-A test() {} //# 23: ok
-
-void test(A param()) {} //# 24: ok
-
-void test(A param) {} //# 25: ok
-
-void test([A param]) {} //# 26: ok
-
-void test({A param}) {} //# 27: ok
-
-typedef A Test(); //# 28: ok
-
-typedef void Test(A param()); //# 29: ok
-
-typedef void Test(A param); //# 30: ok
-
-typedef void Test([A param]); //# 31: ok
-
-typedef void Test({A param}); //# 32: ok
-
-typedef Test = A Function(); //# 33: ok
-
-typedef Test = void Function(A param); //# 34: ok
-
-typedef Test = void Function(A); //# 35: ok
-
-typedef Test = void Function([A param]); //# 36: ok
-
-typedef Test = void Function([A]); //# 37: ok
-
-typedef Test = void Function({A param}); //# 38: ok
-
-void f(dynamic x) {
-  void localFunction<T>() {}
-
-  g(x as A); //# 39: ok
-  g(x is A); //# 40: ok
-  try {} on A catch (_) {} //# 41: ok
-  for (A test in [x]) {} //# 42: ok
-  A test; //# 43: ok
-  OldStyleTypedef<A> test; //# 44: ok
-  NewStyleTypedef<A> test; //# 45: ok
-  genericFunction<A>(); //# 46: ok
-  new C().genericMethod<A>(); //# 47: ok
-  localFunction<A>(); //# 48: ok
-  A test() {} //# 49: ok
-  void test(A param()) {} //# 50: ok
-  void test(A param) {} //# 51: ok
-  void test([A param]) {} //# 52: ok
-  void test({A param}) {} //# 53: ok
-  void Function(A param) test; //# 54: ok
-  void Function(A) test; //# 55: ok
-  void Function([A param]) test; //# 56: ok
-  void Function([A]) test; //# 57: ok
-  void Function({A param}) test; //# 58: ok
-  A(); //# 59: compile-time error
-  new A(); //# 60: compile-time error
-  const A(); //# 61: compile-time error
-  const test = A(); //# 62: compile-time error
-}
-
-void g(dynamic x) {}
-
-main() {
-  f(null);
-}
diff --git a/tests/language_2/generic/instantiate_type_variable_runtime_test.dart b/tests/language_2/generic/instantiate_type_variable_runtime_test.dart
deleted file mode 100644
index 35274169f21..00000000000
--- a/tests/language_2/generic/instantiate_type_variable_runtime_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that you cannot instantiate a type variable.
-
-class Foo<T> {
-  Foo() {}
-  T make() {
-
-  }
-}
-
-main() {
-  new Foo<Object>().make();
-}
diff --git a/tests/language_2/generic/instantiate_type_variable_test.dart b/tests/language_2/generic/instantiate_type_variable_test.dart
deleted file mode 100644
index 1b9bee1fdb0..00000000000
--- a/tests/language_2/generic/instantiate_type_variable_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that you cannot instantiate a type variable.
-
-class Foo<T> {
-  Foo() {}
-  T make() {
-    return new T();
-    //         ^
-    // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-    // [cfe] Couldn't find constructor 'T'.
-  }
-}
-
-main() {
-  new Foo<Object>().make();
-}
diff --git a/tests/language_2/generic/is_check_test.dart b/tests/language_2/generic/is_check_test.dart
deleted file mode 100644
index 505c70079fe..00000000000
--- a/tests/language_2/generic/is_check_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  foo() => this is A<int>;
-}
-
-main() {
-  Expect.isFalse(new A().foo());
-  Expect.isTrue(new A<int>().foo());
-  Expect.isFalse(new A<String>().foo());
-}
diff --git a/tests/language_2/generic/list_checked_test.dart b/tests/language_2/generic/list_checked_test.dart
deleted file mode 100644
index c4926894245..00000000000
--- a/tests/language_2/generic/list_checked_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  Expect.throws(() {
-    List<int> t = (<String>[] as Object);
-  });
-}
diff --git a/tests/language_2/generic/local_functions_test.dart b/tests/language_2/generic/local_functions_test.dart
deleted file mode 100644
index c05359c4fe5..00000000000
--- a/tests/language_2/generic/local_functions_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Dart test verifying that the parser can handle type parameterization of
-/// local function declarations, and declarations of function parameters.
-
-library generic_local_functions_test;
-
-import "package:expect/expect.dart";
-
-// Declare a generic function parameter.
-int f(Y g<X, Y>(Map<X, Y> arg, X x)) => g<int, int>(<int, int>{1: 42}, 1);
-
-main() {
-  // Declare a generic local function
-  Y h<X, Y>(Map<X, Y> m, X x) => m[x];
-  // Pass a generic local function as an argument.
-  Expect.equals(f(h), 42);
-  // Pass a function expression as an argument.
-  Expect.equals(f(<X, Y>(Map<X, Y> m, X x) => m[x]), 42);
-}
diff --git a/tests/language_2/generic/many_generic_instanceof_test.dart b/tests/language_2/generic/many_generic_instanceof_test.dart
deleted file mode 100644
index 917bd6e698e..00000000000
--- a/tests/language_2/generic/many_generic_instanceof_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-library GenericInstanceofTest.dart;
-
-import "package:expect/expect.dart";
-part "instanceof.dart";
-
-class ManyGenericInstanceofTest {
-  static testMain() {
-    for (int i = 0; i < 20; i++) {
-      GenericInstanceof.testMain();
-    }
-  }
-}
-
-main() {
-  ManyGenericInstanceofTest.testMain();
-}
diff --git a/tests/language_2/generic/metadata_in_function_body_test.dart b/tests/language_2/generic/metadata_in_function_body_test.dart
deleted file mode 100644
index 79af7e05ac1..00000000000
--- a/tests/language_2/generic/metadata_in_function_body_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that annotations inside function bodies cannot use type arguments, but
-// can be raw.
-
-// @dart=2.11
-
-class C<T> {
-  const C();
-}
-
-void ignore(dynamic value) {}
-
-main() {
-  @C()
-  @C<dynamic>()
-  //^
-  // [analyzer] SYNTACTIC_ERROR.EXPERIMENT_NOT_ENABLED
-  // [cfe] An annotation can't use type arguments.
-  @C<int>()
-  //^
-  // [analyzer] SYNTACTIC_ERROR.EXPERIMENT_NOT_ENABLED
-  // [cfe] An annotation can't use type arguments.
-  int i = 0;
-  ignore(i);
-}
diff --git a/tests/language_2/generic/metadata_runtime_1_test.dart b/tests/language_2/generic/metadata_runtime_1_test.dart
deleted file mode 100644
index 754aa7b38fb..00000000000
--- a/tests/language_2/generic/metadata_runtime_1_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Check that annotations cannot use type arguments, but can be raw.
-
-class C<T> {
-  const C();
-}
-
-@C()
-
-
-main() {}
diff --git a/tests/language_2/generic/metadata_runtime_test.dart b/tests/language_2/generic/metadata_runtime_test.dart
deleted file mode 100644
index 003da95366e..00000000000
--- a/tests/language_2/generic/metadata_runtime_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Check that annotations cannot use type arguments, but can be raw.
-
-class C<T> {
-  const C();
-}
-
-
-
-
-main() {}
diff --git a/tests/language_2/generic/metadata_test.dart b/tests/language_2/generic/metadata_test.dart
deleted file mode 100644
index 29ec0d9b565..00000000000
--- a/tests/language_2/generic/metadata_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that annotations cannot use type arguments, but can be raw.
-
-// @dart=2.11
-
-class C<T> {
-  const C();
-}
-
-@C()
-@C<dynamic>()
-//^
-// [analyzer] SYNTACTIC_ERROR.EXPERIMENT_NOT_ENABLED
-// [cfe] An annotation can't use type arguments.
-@C<int>()
-//^
-// [analyzer] SYNTACTIC_ERROR.EXPERIMENT_NOT_ENABLED
-// [cfe] An annotation can't use type arguments.
-main() {}
diff --git a/tests/language_2/generic/method_types_test.dart b/tests/language_2/generic/method_types_test.dart
deleted file mode 100644
index aeafb7740d2..00000000000
--- a/tests/language_2/generic/method_types_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-typedef Convert1<O> = O Function<I>(I input);
-typedef Convert2<I> = O Function<O>(I input);
-typedef Convert3 = O Function<I, O>(I input);
-typedef Other(a, b);
-
-class Mixin<E> {
-  E convert1<I>(I input) => null;
-}
-
-class Class<F> extends Object with Mixin<F> {
-  O convert2<O>(F input) => null;
-}
-
-O convert3<I, O>(I input) => null;
-
-test1() {
-  var val = new Class<String>();
-  Expect.isTrue(val.convert1 is Convert1);
-  Expect.isFalse(val.convert1 is Convert2);
-  Expect.isTrue(val.convert1 is Convert1<String>);
-  Expect.isFalse(val.convert1 is Convert1<int>);
-  Expect.isFalse(val.convert1 is Convert2<String>);
-  Expect.isFalse(val.convert1 is Other);
-}
-
-test2() {
-  var val = new Class<String>();
-  Expect.isTrue(val.convert2 is Convert2);
-  Expect.isTrue(val.convert2 is Convert1);
-  Expect.isTrue(val.convert2 is Convert2<String>);
-  Expect.isTrue(val.convert2 is Convert2<int>);
-  Expect.isFalse(val.convert2 is Convert1<String>);
-  Expect.isFalse(val.convert2 is Other);
-}
-
-test3() {
-  Expect.isTrue(convert3 is Convert3);
-  Expect.isFalse(convert3 is Other);
-}
-
-main() {
-  test1(); //# 01: ok
-  test2(); //# 02: ok
-  test3(); //# 03: ok
-}
diff --git a/tests/language_2/generic/mock_test.dart b/tests/language_2/generic/mock_test.dart
deleted file mode 100644
index 28289337d10..00000000000
--- a/tests/language_2/generic/mock_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for https://github.com/dart-lang/sdk/issues/38384
-
-class Built<X, Y> {}
-
-class Foo {
-  foo<S extends Built<S, B>, B extends Built<S, B>>() {}
-}
-
-class Mock {
-  noSuchMethod(Invocation i) {}
-}
-
-class MockFoo extends Mock implements Foo {}
-
-main() {}
diff --git a/tests/language_2/generic/native_test.dart b/tests/language_2/generic/native_test.dart
deleted file mode 100644
index 36132b0b7f9..00000000000
--- a/tests/language_2/generic/native_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test is-tests with type variables on native subclasses.
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  foo(o) => o is T;
-}
-
-class B {}
-
-class C {}
-
-main() {
-  Expect.isTrue(new A<Iterable<B>>().foo(<B>[]));
-  Expect.isFalse(new A<Iterable<C>>().foo(<B>[]));
-
-  Expect.isTrue(new A<Pattern>().foo('hest'));
-
-  Expect.isTrue(new A<Comparable<String>>().foo('hest'));
-  Expect.isFalse(new A<Comparable<C>>().foo('hest'));
-}
diff --git a/tests/language_2/generic/no_such_method_dispatcher_test.dart b/tests/language_2/generic/no_such_method_dispatcher_test.dart
deleted file mode 100644
index aa0fce9fdd7..00000000000
--- a/tests/language_2/generic/no_such_method_dispatcher_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--reify-generic-functions --optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that noSuchMethod dispatching and auto-closurization work correctly
-// with generic functions.
-
-class A {
-  noSuchMethod(m) {
-    return 123;
-  }
-
-  bar<U, V>(x) => x + 1;
-}
-
-class B extends A {}
-
-class C {
-  C(this.typeArgs, this.posArgs, this.namedArgs);
-  List typeArgs;
-  List posArgs;
-  Map namedArgs;
-  noSuchMethod(m) {
-    Expect.equals(typeArgs.length, m.typeArguments.length);
-    for (var i = 0; i < typeArgs.length; ++i) {
-      Expect.equals(typeArgs[i], m.typeArguments[i]);
-    }
-    Expect.equals(posArgs.length, m.positionalArguments.length);
-    for (var i = 0; i < posArgs.length; ++i) {
-      Expect.equals(posArgs[i], m.positionalArguments[i]);
-    }
-    Expect.equals(namedArgs.length, m.namedArguments.length);
-    for (var k in namedArgs.keys) {
-      Expect.equals(namedArgs[k], m.namedArguments[new Symbol(k)]);
-    }
-    return 123;
-  }
-}
-
-main() {
-  dynamic a = new A();
-  for (var i = 0; i < 20; ++i) Expect.equals(123, a.foo<int, A>());
-  Expect.throws(() => (a.foo)());
-  Expect.throws(() => (a.foo)<int, A>());
-  Expect.equals("123", (a.foo).toString());
-
-  dynamic b = new B();
-  for (var i = 0; i < 20; ++i) {
-    Expect.equals(2, b.bar<int, A>(1));
-    Expect.equals(2, b.bar(1));
-    Expect.equals(123, b.bar<int, A>());
-    Expect.equals(3, b.bar<int, A>(2));
-    Expect.equals(123, b.bar<int>(1));
-  }
-
-  for (var i = 0; i < 20; ++i) {
-    Expect.equals(123, b.bar<int, A>(1, 2, 3));
-    Expect.equals(123, b.bar<int, A>(1, 2, foo: 3));
-    Expect.equals(123, b.bar<int>(1));
-  }
-
-  // Test type, named, and positional arguments.
-  dynamic c = new C([int, A], [100], {"n1": 101, "n2": 102});
-  for (var i = 0; i < 20; ++i) {
-    Expect.equals(123, c.bar<int, A>(100, n1: 101, n2: 102));
-    Expect.equals(123, c.bar<int, A>(100, n2: 102, n1: 101));
-  }
-}
diff --git a/tests/language_2/generic/object_type_test.dart b/tests/language_2/generic/object_type_test.dart
deleted file mode 100644
index 0af0abfe7b4..00000000000
--- a/tests/language_2/generic/object_type_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Tester<T> {
-  testGenericType(x) {
-    return x is T;
-  }
-}
-
-main() {
-  // The Dart Object type is special in that it doesn't have any superclass.
-  Expect.isTrue(new Tester<Object>().testGenericType(new Object()));
-}
diff --git a/tests/language_2/generic/parameterized_extends_test.dart b/tests/language_2/generic/parameterized_extends_test.dart
deleted file mode 100644
index a333de6f994..00000000000
--- a/tests/language_2/generic/parameterized_extends_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Test verifying that generic extends are processed correctly.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A<T> {}
-
-class B<T1, T2 extends A<T1>> {}
-
-class C<T1 extends A<T2>, T2> {}
-
-main() {
-  var a = new A<String>();
-  var b = new B<String, A<String>>();
-  var c = new C<A<String>, String>();
-  Expect.isTrue(a is Object);
-  Expect.isTrue(a is A<Object>);
-  Expect.isTrue(a is A<String>);
-  Expect.isTrue(a is! A<int>);
-  Expect.isTrue(b is Object);
-  Expect.isTrue(b is B<Object, A<Object>>);
-  Expect.isTrue(b is B<String, A<String>>);
-  Expect.isTrue(b is! B<int, A<int>>);
-  Expect.isTrue(c is Object);
-  Expect.isTrue(c is C<A<Object>, Object>);
-  Expect.isTrue(c is C<A<String>, String>);
-  Expect.isTrue(c is! C<A<int>, int>);
-}
diff --git a/tests/language_2/generic/recursive_generic_test.dart b/tests/language_2/generic/recursive_generic_test.dart
deleted file mode 100644
index 28d551596cb..00000000000
--- a/tests/language_2/generic/recursive_generic_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class S<T extends S<T>> {
-  m() => 123;
-  get S_T => T;
-}
-
-class C<T extends C<T>> extends S<C<T>> {
-  m() => 456;
-  get C_T => T;
-}
-
-class D extends C<D> {}
-
-main() {
-  regress31434();
-
-  Expect.equals(new C<D>().m(), 456);
-  Expect.equals(new C<D>().C_T, D);
-  Expect.equals(new C<D>().S_T.toString(), 'C<D>');
-}
-
-class F<L, R> {}
-
-class E<L, R> extends F<E<L, Object>, R> {}
-
-regress31434() {
-  type<T>() => T;
-  dynamic e = new E<int, String>();
-  Expect.equals(e.runtimeType, type<E<int, String>>());
-}
diff --git a/tests/language_2/generic/reify_typevar_runtime_1_test.dart b/tests/language_2/generic/reify_typevar_runtime_1_test.dart
deleted file mode 100644
index 2eebebca345..00000000000
--- a/tests/language_2/generic/reify_typevar_runtime_1_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class C<T> {
-  final x;
-  C([this.x]);
-
-  static staticFunction(bool b) =>
-
-      null;
-  factory C.factoryConstructor(bool b) => new C(
-    b ? T :
-      null);
-  C.redirectingConstructor(bool b) : this(
-
-            null);
-  C.ordinaryConstructor(bool b)
-      : x =
-
-            null;
-}
-
-main() {
-  Expect.equals(null, C.staticFunction(false));
-  Expect.equals(null, new C.factoryConstructor(false).x);
-  Expect.equals(null, new C.redirectingConstructor(false).x);
-  Expect.equals(null, new C.ordinaryConstructor(false).x);
-}
diff --git a/tests/language_2/generic/reify_typevar_runtime_2_test.dart b/tests/language_2/generic/reify_typevar_runtime_2_test.dart
deleted file mode 100644
index 5b37d7f7dc4..00000000000
--- a/tests/language_2/generic/reify_typevar_runtime_2_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class C<T> {
-  final x;
-  C([this.x]);
-
-  static staticFunction(bool b) =>
-
-      null;
-  factory C.factoryConstructor(bool b) => new C(
-
-      null);
-  C.redirectingConstructor(bool b) : this(
-    b ? T :
-            null);
-  C.ordinaryConstructor(bool b)
-      : x =
-
-            null;
-}
-
-main() {
-  Expect.equals(null, C.staticFunction(false));
-  Expect.equals(null, new C.factoryConstructor(false).x);
-  Expect.equals(null, new C.redirectingConstructor(false).x);
-  Expect.equals(null, new C.ordinaryConstructor(false).x);
-}
diff --git a/tests/language_2/generic/reify_typevar_runtime_3_test.dart b/tests/language_2/generic/reify_typevar_runtime_3_test.dart
deleted file mode 100644
index 3908383423a..00000000000
--- a/tests/language_2/generic/reify_typevar_runtime_3_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class C<T> {
-  final x;
-  C([this.x]);
-
-  static staticFunction(bool b) =>
-
-      null;
-  factory C.factoryConstructor(bool b) => new C(
-
-      null);
-  C.redirectingConstructor(bool b) : this(
-
-            null);
-  C.ordinaryConstructor(bool b)
-      : x =
-    b ? T :
-            null;
-}
-
-main() {
-  Expect.equals(null, C.staticFunction(false));
-  Expect.equals(null, new C.factoryConstructor(false).x);
-  Expect.equals(null, new C.redirectingConstructor(false).x);
-  Expect.equals(null, new C.ordinaryConstructor(false).x);
-}
diff --git a/tests/language_2/generic/reify_typevar_runtime_test.dart b/tests/language_2/generic/reify_typevar_runtime_test.dart
deleted file mode 100644
index 9b3c94b51a2..00000000000
--- a/tests/language_2/generic/reify_typevar_runtime_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class C<T> {
-  final x;
-  C([this.x]);
-
-  static staticFunction(bool b) =>
-
-      null;
-  factory C.factoryConstructor(bool b) => new C(
-
-      null);
-  C.redirectingConstructor(bool b) : this(
-
-            null);
-  C.ordinaryConstructor(bool b)
-      : x =
-
-            null;
-}
-
-main() {
-  Expect.equals(null, C.staticFunction(false));
-  Expect.equals(null, new C.factoryConstructor(false).x);
-  Expect.equals(null, new C.redirectingConstructor(false).x);
-  Expect.equals(null, new C.ordinaryConstructor(false).x);
-}
diff --git a/tests/language_2/generic/reify_typevar_static_test.dart b/tests/language_2/generic/reify_typevar_static_test.dart
deleted file mode 100644
index 338e2fbeafc..00000000000
--- a/tests/language_2/generic/reify_typevar_static_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C<T> {
-  final x;
-  C([this.x]);
-
-  static staticFunction(bool b) =>
-    b ? T :
-    //  ^
-    // [analyzer] COMPILE_TIME_ERROR.TYPE_PARAMETER_REFERENCED_BY_STATIC
-    // [cfe] Type variables can't be used in static members.
-      null;
-  factory C.factoryConstructor(bool b) => new C(
-    b ? T :
-      null);
-  C.redirectingConstructor(bool b) : this(
-    b ? T :
-            null);
-  C.ordinaryConstructor(bool b)
-      : x =
-    b ? T :
-            null;
-}
-
-main() {
-  Expect.equals(null, C.staticFunction(false));
-  Expect.equals(null, new C.factoryConstructor(false).x);
-  Expect.equals(null, new C.redirectingConstructor(false).x);
-  Expect.equals(null, new C.ordinaryConstructor(false).x);
-}
diff --git a/tests/language_2/generic/self_reference_test.dart b/tests/language_2/generic/self_reference_test.dart
deleted file mode 100644
index 5ffd2eb8ea0..00000000000
--- a/tests/language_2/generic/self_reference_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Bar<T> {}
-
-class Foo<T> extends Bar<Foo<T>> {}
-
-void main() {
-  print(new Foo<int>());
-}
diff --git a/tests/language_2/generic/sends_test.dart b/tests/language_2/generic/sends_test.dart
deleted file mode 100644
index ddfd2410ee3..00000000000
--- a/tests/language_2/generic/sends_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Dart test verifying that the parser can handle certain cases where
-/// grammar ambiguity is resolved in favor of generic sends, not
-/// relational expressions.
-
-library generic_sends_test;
-
-f(arg1, [arg2]) => null;
-g<X, Y>(arg) => null;
-
-main() {
-  // Generic invocations.
-  f(g<int, String>(3));
-  f(g<int, List<String>>(3));
-  f(g<int, String>(3), 4);
-  f(g<int, List<String>>(3), 4);
-
-  // Relational expressions.
-  int a = 0, b = 1, c = 2, d = 3;
-  f(a < b, c > 3);
-  f(a < b, c >> 3);
-  f(a < b, c < d >> 3);
-}
diff --git a/tests/language_2/generic/sync_star_test.dart b/tests/language_2/generic/sync_star_test.dart
deleted file mode 100644
index 088ee58211e..00000000000
--- a/tests/language_2/generic/sync_star_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-Iterable<T> foo<T>(T x) sync* {
-  for (int i = 0; i < 3; i++) {
-    yield x;
-  }
-}
-
-main() {
-  for (var x in foo<int>(1)) {
-    Expect.equals(1, x);
-  }
-}
diff --git a/tests/language_2/generic/syntax_test.dart b/tests/language_2/generic/syntax_test.dart
deleted file mode 100644
index 99ff230ebb7..00000000000
--- a/tests/language_2/generic/syntax_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test verifying that the parser does not confuse parameterized types with
-// boolean expressions, since both contain '<'.
-
-class GenericSyntaxTest<B, C, D, E, F> {
-  GenericSyntaxTest() {}
-
-  void foo(x1, x2, x3, x4, x5) {
-    Expect.equals(true, x1);
-    Expect.equals(3, x2);
-    Expect.equals(4, x3);
-    Expect.equals(5, x4);
-    Expect.equals(false, x5);
-  }
-
-  void bar(x) {
-    Expect.equals(null, x(null));
-  }
-
-  test() {
-    var a = 1;
-    var b = 2;
-    var c = 3;
-    var d = 4;
-    var e = 5;
-    var f = 6;
-    var g = 7;
-    var h = null;
-    bar((A<B, C, D, E, F> g) {
-      return h;
-    }); // 'A<B' starts a generic type.
-    foo(a < b, c, d, e, f > g); // 'a<b' is a boolean function argument.
-  }
-
-  static testMain() {
-    new GenericSyntaxTest().test();
-  }
-}
-
-abstract class A<B, C, D, E, F> {}
-
-main() {
-  GenericSyntaxTest.testMain();
-}
diff --git a/tests/language_2/generic/tearoff_test.dart b/tests/language_2/generic/tearoff_test.dart
deleted file mode 100644
index e633ffb4f1b..00000000000
--- a/tests/language_2/generic/tearoff_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:math' as math;
-import 'dart:math' show min; // <-- generic: <T extends num>(T, T) -> T
-import 'package:expect/expect.dart';
-
-class C {
-  T m<T extends num>(T x, T y) => min(x, y);
-  int m2(int x, int y) => min(x, y);
-}
-
-typedef int Int2Int2Int(int x, int y);
-
-void _test(Int2Int2Int f) {
-  int y = f(123, 456);
-  Expect.equals(y, 123);
-  // `f` doesn't take type args.
-  Expect.throws(() => (f as dynamic)<int>(123, 456));
-}
-
-void _testParam(T minFn<T extends num>(T x, T y)) {
-  _test(minFn);
-}
-
-main() {
-  // Strong mode infers: `min<int>`
-  // Test simple/prefixed identifiers and property access
-  _test(min);
-  _test(math.min);
-  _test(new C().m);
-
-  // Test local function, variable, and parameter
-  T m<T extends num>(T x, T y) => min(x, y);
-  _test(m);
-  final f = min;
-  _test(f);
-  _testParam(math.min);
-
-  // A few misc tests for methods
-  Expect.equals(123, (new C() as dynamic).m<int>(123, 456));
-  Expect.throws(() => (new C() as dynamic).m2<int>(123, 456));
-}
diff --git a/tests/language_2/generic/type_argument_in_super_type_test.dart b/tests/language_2/generic/type_argument_in_super_type_test.dart
deleted file mode 100644
index 8007470471a..00000000000
--- a/tests/language_2/generic/type_argument_in_super_type_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C {}
-
-class A<T> {
-  var field;
-  A(this.field);
-  T foo() => field;
-  int bar() => field;
-}
-
-class B extends A<C> {
-  B() : super(new C());
-}
-
-main() {
-  B b = new B();
-  Expect.equals(b.field, b.foo());
-  Expect.throwsTypeError(b.bar);
-}
diff --git a/tests/language_2/generic/type_argument_substitution_test.dart b/tests/language_2/generic/type_argument_substitution_test.dart
deleted file mode 100644
index 946e56139c5..00000000000
--- a/tests/language_2/generic/type_argument_substitution_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that substitutions are emitted for classes that are only used as
-// type arguments.
-
-import 'package:expect/expect.dart';
-
-class K {}
-
-class A<T> {}
-
-class B extends A<K> {}
-
-class X<T> {}
-
-main() {
-  var v = new DateTime.now().millisecondsSinceEpoch != 42
-      ? new X<B>()
-      : new X<A<String>>();
-  Expect.isFalse(v is X<A<String>>);
-}
diff --git a/tests/language_2/generic/type_parameter_literal_test.dart b/tests/language_2/generic/type_parameter_literal_test.dart
deleted file mode 100644
index 7aa7f9218cf..00000000000
--- a/tests/language_2/generic/type_parameter_literal_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test type parameter literal expressions.
-
-class D<T> {
-  Type getT() {
-    return T;
-  }
-}
-
-main() {
-  Expect.equals(int, new D<int>().getT());
-}
diff --git a/tests/language_2/generic/type_parameter_test.dart b/tests/language_2/generic/type_parameter_test.dart
deleted file mode 100644
index 25f06e5d606..00000000000
--- a/tests/language_2/generic/type_parameter_test.dart
+++ /dev/null
@@ -1,92 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  Function closure;
-  A._(this.closure);
-
-  factory A() {
-    return new A._(() => new Set<T>());
-  }
-
-  A.bar() {
-    closure = () => new Set<T>();
-  }
-
-  static
-  T //# 01: compile-time error
-      staticMethod(
-  T //# 02: compile-time error
-          a) {
-    final
-    T //# 03: compile-time error
-        a = "not_null";
-    print(a);
-    return a;
-  }
-
-  static final
-  T //# 04: compile-time error
-      staticFinalField = "not_null";
-
-  static const
-  T //# 05: compile-time error
-      staticConstField = "not_null";
-
-  static not_null() => "not_null";
-  static final
-  T //# 06: compile-time error
-      staticFinalField2 = not_null();
-
-  // Type parameters are not in scope inside static methods.
-  static
-      T //# 07: compile-time error
-      staticMethod2(
-      T //# 07: compile-time error
-      a) {
-    final
-      T //# 07: compile-time error
-      a = null;
-    print(a);
-    return a;
-  }
-
-  static final
-  T //# 08: compile-time error
-    staticFinalField3 = null;
-
-  static null_() => null;
-  static final
-  T //# 09: compile-time error
-    staticFinalField4 = null_();
-}
-
-main() {
-  var s = ((new A()).closure)();
-  Expect.isTrue(s is Set);
-
-  s = ((new A.bar()).closure)();
-  Expect.isTrue(s is Set);
-
-  s = ((new A<int>()).closure)();
-  Expect.isTrue(s is Set<int>);
-  Expect.isFalse(s is Set<double>);
-
-  s = ((new A<int>.bar()).closure)();
-  Expect.isTrue(s is Set<int>);
-  Expect.isFalse(s is Set<double>);
-
-  A.staticMethod("not_null");
-  print(A.staticFinalField);
-  print(A.staticConstField);
-  print(A.staticFinalField2);
-
-  A.staticMethod2(null);
-  print(A.staticFinalField3);
-  print(A.staticFinalField4);
-}
diff --git a/tests/language_2/generic/typedef_test.dart b/tests/language_2/generic/typedef_test.dart
deleted file mode 100644
index 7622f437358..00000000000
--- a/tests/language_2/generic/typedef_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-// Test runtime behavior of generic function typedefs:
-//
-// - use "is" and "as" on them.
-// - get Type values from runtimeType.
-// - pass type parameters from another generic type to them.
-
-typedef A<T> = T Function(T x, T y);
-typedef B = T Function<T>(T x, T y);
-
-typedef C<K> = Map<K, V> Function<V>(K k, V v);
-typedef D = Map<String, V> Function<V>(String k, V v);
-
-class G<Y, Z> {
-  test() {
-    dynamic d = (Y x, Y y) => y;
-    Expect.isTrue(d is A<Y>);
-    Expect.equals(d is A<Z>, Y == Z);
-
-    Expect.isFalse(d is B);
-    Expect.throws(() => d as B);
-
-    d = (Y y, Z z) => <Y, Z>{};
-    Expect.isFalse(d is C<Y>);
-
-    d = <S>(Y y, S s) => <Y, S>{};
-    Expect.isTrue(d is C<Y>);
-    Expect.equals(d is C<Z>, Y == Z);
-    Expect.equals(d is D, Y == String);
-  }
-}
-
-main() {
-  dynamic d = (int x, int y) => x + y;
-  Expect.isTrue(d is A<int>);
-  Expect.equals((d as A<int>)(1, 2), 3);
-
-  Expect.isFalse(d is B);
-  Expect.throws(() => d as B);
-
-  d = <S>(S x, S y) => x is String ? x : y;
-  Expect.isFalse(d is A);
-  Expect.throws(() => d as A);
-
-  Expect.isTrue(d is B);
-  // TODO(jmesserly): Analyzer incorrectly rejects this form:
-  // Expect.equals((d as B)<int>(1, 2), 2);
-  B b = d;
-  Expect.equals(b<int>(1, 2), 2);
-  Expect.equals(b<String>('a', 'b'), 'a');
-
-
-  new G<int, String>().test();
-  new G<String, String>().test();
-}
diff --git a/tests/language_2/generic/wrong_number_type_arguments_runtime_test.dart b/tests/language_2/generic/wrong_number_type_arguments_runtime_test.dart
deleted file mode 100644
index 9884079f365..00000000000
--- a/tests/language_2/generic/wrong_number_type_arguments_runtime_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-// Map takes 2 type arguments.
-Map
-
-foo;
-Map
-
-baz;
-
-main() {
-
-  var bar = new Map
-
-    ();
-
-}
diff --git a/tests/language_2/generic/wrong_number_type_arguments_test.dart b/tests/language_2/generic/wrong_number_type_arguments_test.dart
deleted file mode 100644
index bc9b1e91885..00000000000
--- a/tests/language_2/generic/wrong_number_type_arguments_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Map takes 2 type arguments.
-Map<String> foo;
-// [error line 8, column 1, length 11]
-// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-// [cfe] Expected 2 type arguments.
-Map<String> baz;
-// [error line 12, column 1, length 11]
-// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-// [cfe] Expected 2 type arguments.
-
-main() {
-  foo = null;
-  var bar = new Map<String>();
-  //            ^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-  // [cfe] Expected 2 type arguments.
-  baz = new Map();
-}
diff --git a/tests/language_2/generic_methods/bounds_test.dart b/tests/language_2/generic_methods/bounds_test.dart
deleted file mode 100644
index faadde604c6..00000000000
--- a/tests/language_2/generic_methods/bounds_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that a dynamic call to a generic function checks the type argument
-// against its bound.
-
-library generic_methods_bounds_test;
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B {}
-
-class C {
-  void fun<T extends A>(T t) {}
-}
-
-main() {
-  C c = new C();
-  c.fun<B>(new B()); //# 01: compile-time error
-
-  dynamic obj = new C();
-  obj.fun<B>(new B()); //# 02: runtime error
-}
diff --git a/tests/language_2/generic_methods/closure_test.dart b/tests/language_2/generic_methods/closure_test.dart
deleted file mode 100644
index c13cd1dad63..00000000000
--- a/tests/language_2/generic_methods/closure_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that a generic closure is correctly constructed.
-
-library generic_methods_closure_test;
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class I<T> {}
-
-class B extends I<B> {}
-
-void fun<T>(List<T> list) {
-  var helper1 = <S>(List<S> list) {
-    if (list.length > 0) {
-      Expect.isTrue(list[0] is S);
-    }
-    Expect.isTrue(list is List<S>);
-    Expect.isTrue(list is List<T>);
-  };
-
-  void helper2<S>(List<S> list) {
-    if (list.length > 0) {
-      Expect.isTrue(list[0] is S);
-    }
-    Expect.isTrue(list is List<S>);
-    Expect.isTrue(list is List<T>);
-  }
-
-  helper1<T>(list);
-  helper2<T>(list);
-}
-
-main() {
-  List<B> list = <B>[new B()];
-  fun<B>(list);
-}
diff --git a/tests/language_2/generic_methods/dynamic_test.dart b/tests/language_2/generic_methods/dynamic_test.dart
deleted file mode 100644
index 68033f50b44..00000000000
--- a/tests/language_2/generic_methods/dynamic_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that if the type of a parameter of a generic method is a type parameter,
-// the type of the passed argument is checked (01) at compile time
-// if the receiver is given via an interface-type variable, and (02) at runtime
-// if the receiver is dynamic.
-
-library generic_methods_dynamic_test;
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B {}
-
-class C {
-  T foo<T>(T t) => t;
-  List<T> bar<T>(Iterable<T> t) => <T>[t.first];
-}
-
-main() {
-  B b = new B();
-  C c = new C();
-  dynamic obj = c;
-
-  c.foo<A>(b); //# 01: compile-time error
-  obj.foo<A>(b); //# 02: runtime error
-
-  c.bar<A>(<B>[new B()]); //# 03: compile-time error
-  obj.bar<A>(<B>[new B()]); //# 04: runtime error
-
-  Expect.equals(c.foo<B>(b), b); //# 05: ok
-  Expect.equals(obj.foo<B>(b), b); //# 05: continued
-
-  dynamic x = c.bar<B>(<B>[new B()]); //# 05: continued
-  Expect.isTrue(x is List<B>); //# 05: continued
-  Expect.equals(x.length, 1); //# 05: continued
-
-  dynamic y = obj.bar<B>(<B>[new B()]); //# 05: continued
-  Expect.isTrue(y is List<B>); //# 05: continued
-  Expect.equals(y.length, 1); //# 05: continued
-}
diff --git a/tests/language_2/generic_methods/function_type_test.dart b/tests/language_2/generic_methods/function_type_test.dart
deleted file mode 100644
index e8f5ad7fdd8..00000000000
--- a/tests/language_2/generic_methods/function_type_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Dart test on the usage of method type arguments in a function typed
-/// parameter declaration.
-
-library generic_methods_function_type_test;
-
-import "package:expect/expect.dart";
-
-class C<V> {
-  U m1<U>(U f(V v), V v) => f(v);
-  V m2<U>(V f(U v), U u) => f(u);
-}
-
-main() {
-  Expect.equals(new C<int>().m1<int>((x) => x, 10), 10);
-  Expect.equals(new C<int>().m2<int>((x) => x, 20), 20);
-}
diff --git a/tests/language_2/generic_methods/generic_class_tearoff_test.dart b/tests/language_2/generic_methods/generic_class_tearoff_test.dart
deleted file mode 100644
index 57b923c4210..00000000000
--- a/tests/language_2/generic_methods/generic_class_tearoff_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that a torn off method of a generic class is not a generic method,
-// and that it is correctly specialized.
-
-library generic_methods_generic_class_tearoff_test;
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  T fun(T t) => t;
-}
-
-typedef Int2Int = int Function(int);
-typedef String2String = String Function(String);
-typedef Object2Object = Object Function(Object);
-typedef GenericMethod = T Function<T>(T);
-
-main() {
-  A<int> x = new A<int>();
-  var f = x.fun; // The type of f should be 'int Function(Object)'.
-  A<String> y = new A<String>();
-  var g = y.fun; // The type of g should be 'String Function(Object)'.
-  A z = new A();
-  var h = z.fun; // The type of h should be 'dynamic Function(Object)'.
-
-  Expect.isTrue(f is Int2Int);
-  Expect.isTrue(f is! String2String);
-  Expect.isTrue(f is Object2Object);
-  Expect.isTrue(f is! GenericMethod);
-
-  Expect.isTrue(g is! Int2Int);
-  Expect.isTrue(g is String2String);
-  Expect.isTrue(g is Object2Object);
-  Expect.isTrue(g is! GenericMethod);
-
-  Expect.isTrue(h is! Int2Int);
-  Expect.isTrue(h is! String2String);
-  Expect.isTrue(h is Object2Object);
-  Expect.isTrue(h is! GenericMethod);
-}
diff --git a/tests/language_2/generic_methods/generic_function_parameter_test.dart b/tests/language_2/generic_methods/generic_function_parameter_test.dart
deleted file mode 100644
index 99fcff3e190..00000000000
--- a/tests/language_2/generic_methods/generic_function_parameter_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C<T> {
-  bar<V>(T t, int u, V v) => t.toString() + u.toString() + v.toString();
-  foo<U>(bar<V>(T t, U u, V v)) => bar<int>(1 as T, 2 as U, 3);
-}
-
-main() {
-  var c = new C<int>();
-  Expect.equals("123", c.foo<int>(c.bar));
-}
diff --git a/tests/language_2/generic_methods/generic_function_result_runtime_test.dart b/tests/language_2/generic_methods/generic_function_result_runtime_test.dart
deleted file mode 100644
index 8eb8217af29..00000000000
--- a/tests/language_2/generic_methods/generic_function_result_runtime_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify that function type parameter S can be resolved in bar's result type.
-// Verify that generic function types are not allowed as type arguments.
-
-import "package:expect/expect.dart";
-
-int foo
-
-          (int i, int j) => i + j;
-
-List<int Function
-
-                    (S, int)> bar<S extends int>() {
-  return <int Function
-
-                         (S, int)>[foo, foo];
-}
-
-void main() {
-  var list = bar<int>();
-  print(list[0].runtimeType);
-  Expect.equals(123, list[1](100, 23));
-}
diff --git a/tests/language_2/generic_methods/generic_function_result_test.dart b/tests/language_2/generic_methods/generic_function_result_test.dart
deleted file mode 100644
index d50dcb53827..00000000000
--- a/tests/language_2/generic_methods/generic_function_result_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that function type parameter S can be resolved in bar's result type.
-// Verify that generic function types are not allowed as type arguments.
-
-// @dart=2.11
-
-import "package:expect/expect.dart";
-
-int foo
-       <T>
-          (int i, int j) => i + j;
-
-List<int Function<T>(S, int)> bar<S extends int>() {
-// [error column 1]
-// [cfe] A generic function type can't be used as a type argument.
-//   ^^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.GENERIC_FUNCTION_TYPE_CANNOT_BE_TYPE_ARGUMENT
-  return <int Function<T>(S, int)>[foo, foo];
-}
-
-void main() {
-  var list = bar<int>();
-  print(list[0].runtimeType);
-  Expect.equals(123, list[1](100, 23));
-}
diff --git a/tests/language_2/generic_methods/generic_invocation_all_subexpression_types_test.dart b/tests/language_2/generic_methods/generic_invocation_all_subexpression_types_test.dart
deleted file mode 100644
index b395dc9beaf..00000000000
--- a/tests/language_2/generic_methods/generic_invocation_all_subexpression_types_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test verifies that `EXPR<typeArguments>(arguments)` is properly parsed
-// as a generic invocation, for all types of expressions that may appear as
-// EXPR.  We try to pay extra attention to ambiguous expressions (that is, where
-// interpreting the `<` and `>` as operators would also have led to a valid
-// parse).
-
-import '../syntax_helper.dart';
-
-class C extends SyntaxTracker {
-  C([Object x = absent, Object y = absent])
-      : super('new C${SyntaxTracker.args(x, y)}');
-
-  C.syntax(String s) : super(s);
-}
-
-class ThisTest extends C {
-  ThisTest() : super.syntax('this');
-
-  void test() {
-    checkSyntax(f(this<C, C>(0)), 'f(this<C, C>(0))');
-    // Note: SyntaxTracker can't see the parens around `this` in the line below
-    checkSyntax(f((this)<C, C>(0)), 'f(this<C, C>(0))');
-  }
-}
-
-main() {
-  SyntaxTracker.known[C] = 'C';
-  SyntaxTracker.known[#x] = '#x';
-  checkSyntax(f(f<C, C>(0)), 'f(f<C, C>(0))');
-  checkSyntax(f(x.method<C, C>(0)), 'f(x.method<C, C>(0))');
-  checkSyntax(f(C()<C, C>(0)), 'f(new C()<C, C>(0))');
-  checkSyntax(f(new C()<C, C>(0)), 'f(new C()<C, C>(0))');
-  checkSyntax(f(f()<C, C>(0)), 'f(f()<C, C>(0))');
-  checkSyntax(f(x.method()<C, C>(0)), 'f(x.method()<C, C>(0))');
-  checkSyntax(f(x[0]()<C, C>(0)), 'f(x[0]()<C, C>(0))');
-  checkSyntax(f(#x<C, C>(0)), 'f(#x<C, C>(0))');
-  checkSyntax(f(null<C, C>(0)), 'f(null<C, C>(0))');
-  checkSyntax(f(0<C, C>(0)), 'f(0<C, C>(0))');
-  checkSyntax(f(0.5<C, C>(0)), 'f(0.5<C, C>(0))');
-  checkSyntax(f([]<C, C>(0)), 'f([]<C, C>(0))');
-  checkSyntax(f([0]<C, C>(0)), 'f([0]<C, C>(0))');
-  checkSyntax(f({}<C, C>(0)), 'f({}<C, C>(0))');
-  checkSyntax(f({0}<C, C>(0)), 'f({0}<C, C>(0))');
-  checkSyntax(f({0: 0}<C, C>(0)), 'f({ 0: 0 }<C, C>(0))');
-  checkSyntax(f(true<C, C>(0)), 'f(true<C, C>(0))');
-  checkSyntax(f("s"<C, C>(0)), 'f("s"<C, C>(0))');
-  checkSyntax(f(r"s"<C, C>(0)), 'f("s"<C, C>(0))');
-  checkSyntax(f(x[0]<C, C>(0)), 'f(x[0]<C, C>(0))');
-  // Note: SyntaxTracker can't see the parens around `x` in the line below
-  checkSyntax(f((x)<C, C>(0)), 'f(x<C, C>(0))');
-  ThisTest().test();
-}
diff --git a/tests/language_2/generic_methods/generic_invocation_all_types_test.dart b/tests/language_2/generic_methods/generic_invocation_all_types_test.dart
deleted file mode 100644
index 1c9fda2a8ea..00000000000
--- a/tests/language_2/generic_methods/generic_invocation_all_types_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test verifies that `f<T, U>(0)` is properly parsed as a generic
-// invocation, for all type syntaxes that may appear as T and U.
-
-// Note: it doesn't really matter what we import here; it's just a handy library
-// that has declares a types so that we can refer a type via a prefix.
-import 'dart:async' as prefix;
-
-import '../syntax_helper.dart';
-
-class C extends SyntaxTracker {
-  C([Object x = absent, Object y = absent])
-      : super('new C${SyntaxTracker.args(x, y)}');
-}
-
-/// Helper function to work around the fact that not all types can be expressed
-/// as type literals.
-Type typeOf<T>() => T;
-
-main() {
-  SyntaxTracker.known[C] = 'C';
-  SyntaxTracker.known[prefix.Zone] = 'prefix.Zone';
-  SyntaxTracker.known[dynamic] = 'dynamic';
-  SyntaxTracker.known[typeOf<List<C>>()] = 'List<C>';
-  SyntaxTracker.known[typeOf<void Function()>()] = 'void Function()';
-  checkSyntax(f(f<C, C>(0)), 'f(f<C, C>(0))');
-  checkSyntax(f(f<dynamic, C>(0)), 'f(f<dynamic, C>(0))');
-  checkSyntax(f(f<prefix.Zone, C>(0)), 'f(f<prefix.Zone, C>(0))');
-  checkSyntax(f(f<List<C>, C>(0)), 'f(f<List<C>, C>(0))');
-  checkSyntax(f(f<void Function(), C>(0)), 'f(f<void Function(), C>(0))');
-  checkSyntax(f(f<C, dynamic>(0)), 'f(f<C, dynamic>(0))');
-  checkSyntax(f(f<C, prefix.Zone>(0)), 'f(f<C, prefix.Zone>(0))');
-  checkSyntax(f(f<C, List<C>>(0)), 'f(f<C, List<C>>(0))');
-  checkSyntax(f(f<C, void Function()>(0)), 'f(f<C, void Function()>(0))');
-}
diff --git a/tests/language_2/generic_methods/generic_methods_test.dart b/tests/language_2/generic_methods/generic_methods_test.dart
deleted file mode 100644
index f6646560b4e..00000000000
--- a/tests/language_2/generic_methods/generic_methods_test.dart
+++ /dev/null
@@ -1,109 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Dart test verifying that the parser can handle type parameterization of
-/// method declarations and method invocations. Slightly adjusted version of
-/// code from DEP #22.
-
-library generic_methods_test;
-
-import "package:expect/expect.dart";
-
-class BinaryTreeNode<K extends Comparable<K>, V> {
-  final K _key;
-  final V _value;
-  final BinaryTreeNode<K, V> _left;
-  final BinaryTreeNode<K, V> _right;
-
-  BinaryTreeNode(this._key, this._value,
-      {BinaryTreeNode<K, V> left: null, BinaryTreeNode<K, V> right: null})
-      : _left = left,
-        _right = right;
-
-  // Use fresh type variables.
-  static BinaryTreeNode<K2, V2> insertOpt<K2 extends Comparable<K2>, V2>(
-      BinaryTreeNode<K2, V2> t, K2 key, V2 value) {
-    return (t == null) ? new BinaryTreeNode(key, value) : t.insert(key, value);
-  }
-
-  BinaryTreeNode<K, V> insert(K key, V value) {
-    int c = key.compareTo(_key);
-    if (c == 0) return this;
-    var _insert = (BinaryTreeNode<K, V> node, K key, V value) =>
-        insertOpt<K, V>(node, key, value);
-    BinaryTreeNode<K, V> left = _left;
-    BinaryTreeNode<K, V> right = _right;
-    if (c < 0) {
-      left = _insert(_left, key, value);
-    } else {
-      right = _insert(_right, key, value);
-    }
-    return new BinaryTreeNode<K, V>(_key, _value, left: left, right: right);
-  }
-
-  // Reuse type variables [K], [V] to test shadowing.
-  static BinaryTreeNode<K, U> mapOpt<K extends Comparable<K>, V, U>(
-      BinaryTreeNode<K, V> t, U f(V x)) {
-    return (t == null) ? null : t.map<U>(f);
-  }
-
-  BinaryTreeNode<K, U> map<U>(U f(V x)) {
-    var _map = (BinaryTreeNode<K, V> t, U f(V x)) => mapOpt<K, V, U>(t, f);
-    return new BinaryTreeNode<K, U>(_key, f(_value),
-        left: _map(_left, f), right: _map(_right, f));
-  }
-
-  // Use fresh [K2], shadowing [V].
-  static S foldPreOpt<K2 extends Comparable<K2>, V, S>(
-      BinaryTreeNode<K2, V> t, S init, S f(V t, S s)) {
-    return (t == null) ? init : t.foldPre<S>(init, f);
-  }
-
-  S foldPre<S>(S init, S f(V t, S s)) {
-    var _fold = (BinaryTreeNode<K, V> t, S s, S f(V t, S s)) =>
-        foldPreOpt<K, V, S>(t, s, f);
-    S s = init;
-    s = f(_value, s);
-    s = _fold(_left, s, f);
-    s = _fold(_right, s, f);
-    return s;
-  }
-}
-
-class BinaryTree<K extends Comparable<K>, V> {
-  final BinaryTreeNode<K, V> _root;
-
-  BinaryTree._internal(this._root);
-  BinaryTree.empty() : this._internal(null);
-
-  BinaryTree<K, V> insert(K key, V value) {
-    BinaryTreeNode<K, V> root =
-        BinaryTreeNode.insertOpt<K, V>(_root, key, value);
-    return new BinaryTree<K, V>._internal(root);
-  }
-
-  BinaryTree<K, U> map<U>(U f(V x)) {
-    BinaryTreeNode<K, U> root = BinaryTreeNode.mapOpt<K, V, U>(_root, f);
-    return new BinaryTree<K, U>._internal(root);
-  }
-
-  S foldPre<S>(S init, S f(V t, S s)) {
-    return BinaryTreeNode.foldPreOpt<K, V, S>(_root, init, f);
-  }
-}
-
-main() {
-  BinaryTree<num, String> sT = new BinaryTree<num, String>.empty();
-
-  sT = sT.insert(0, "");
-  sT = sT.insert(1, " ");
-  sT = sT.insert(2, "  ");
-  sT = sT.insert(3, "   ");
-
-  BinaryTree<num, num> iT = sT.map<num>((String s) => s.length);
-
-  Expect.equals(iT.foldPre<num>(0, (num i, num s) => i + s), 6);
-}
diff --git a/tests/language_2/generic_methods/local_variable_declaration_test.dart b/tests/language_2/generic_methods/local_variable_declaration_test.dart
deleted file mode 100644
index d2f98418861..00000000000
--- a/tests/language_2/generic_methods/local_variable_declaration_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that a type variable can be used to declare local variables, and that
-// these local variables are of correct type.
-
-library generic_methods_local_variable_declaration_test;
-
-import "package:expect/expect.dart";
-
-class X {}
-
-abstract class Generator<T> {
-  T generate();
-}
-
-class A implements Generator<A> {
-  generate() {
-    return new A();
-  }
-
-  String toString() => "instance of A";
-}
-
-class B implements Generator<B> {
-  generate() {
-    return new B();
-  }
-
-  String toString() => "instance of B";
-}
-
-String fun<T extends Generator<T>>(T t) {
-  T another = t.generate();
-  String anotherName = "$another";
-
-  Expect.isTrue(another is T);
-  Expect.isTrue(another is Generator<T>);
-
-  return anotherName;
-}
-
-main() {
-  A a = new A();
-  B b = new B();
-
-  Expect.equals(fun<A>(a), "instance of A");
-  Expect.equals(fun<B>(b), "instance of B");
-}
diff --git a/tests/language_2/generic_methods/named_parameters_test.dart b/tests/language_2/generic_methods/named_parameters_test.dart
deleted file mode 100644
index 7a519550ea8..00000000000
--- a/tests/language_2/generic_methods/named_parameters_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that generic methods with named parameters are of correct type.
-
-library generic_methods_named_parameters_test;
-
-import "package:expect/expect.dart";
-
-typedef FunObjObj = Object Function<T>(Object, {Object y});
-typedef FunTypObj = Object Function<T>(T, {Object y});
-typedef FunObjTyp = Object Function<T>(Object, {T y});
-typedef FunTypTyp = Object Function<T>(T, {T y});
-
-Object funObjObj<T>(Object x, {Object y}) => x;
-Object funTypObj<T>(T x, {Object y}) => y;
-Object funObjTyp<T>(Object x, {T y}) => x;
-Object funTypTyp<T>(T x, {T y}) => null;
-
-main() {
-  Expect.isTrue(funObjObj is FunObjObj);
-  Expect.isTrue(funObjObj is FunTypObj);
-  Expect.isTrue(funObjObj is FunObjTyp);
-  Expect.isTrue(funObjObj is FunTypTyp);
-
-  Expect.isTrue(funTypObj is! FunObjObj);
-  Expect.isTrue(funTypObj is FunTypObj);
-  Expect.isTrue(funTypObj is! FunObjTyp);
-  Expect.isTrue(funTypObj is FunTypTyp);
-
-  Expect.isTrue(funObjTyp is! FunObjObj);
-  Expect.isTrue(funObjTyp is! FunTypObj);
-  Expect.isTrue(funObjTyp is FunObjTyp);
-  Expect.isTrue(funObjTyp is FunTypTyp);
-
-  Expect.isTrue(funTypTyp is! FunObjObj);
-  Expect.isTrue(funTypTyp is! FunTypObj);
-  Expect.isTrue(funTypTyp is! FunObjTyp);
-  Expect.isTrue(funTypTyp is FunTypTyp);
-}
diff --git a/tests/language_2/generic_methods/new_test.dart b/tests/language_2/generic_methods/new_test.dart
deleted file mode 100644
index e2bcc0978cf..00000000000
--- a/tests/language_2/generic_methods/new_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-import "package:expect/expect.dart";
-
-class C<E> {
-  E e;
-  C(this.e);
-}
-
-C<T> f1<T>(T t) => new C<T>(t);
-
-List<T> f2<T>(T t) => <T>[t];
-
-Map<T, String> f3<T>(T t) => <T, String>{t: 'hi'};
-
-main() {
-  C c = f1<int>(42);
-  List i = f2<String>("Hello!");
-  Expect.isTrue(c is C<int>);
-  Expect.isFalse(c is C<String>);
-  Expect.isTrue(i is List<String>);
-  Expect.isFalse(i is List<int>);
-  Expect.equals(c.e, 42);
-  Expect.equals(i[0], "Hello!");
-
-  Map m1 = f3<int>(1);
-  Expect.isTrue(m1 is Map<int, String>);
-  Expect.isFalse(m1 is Map<String, String>);
-  Expect.isFalse(m1 is Map<int, int>);
-  Expect.equals('hi', m1[1]);
-}
diff --git a/tests/language_2/generic_methods/non_generic_invocation_all_first_expression_types_test.dart b/tests/language_2/generic_methods/non_generic_invocation_all_first_expression_types_test.dart
deleted file mode 100644
index 779ebd5bff0..00000000000
--- a/tests/language_2/generic_methods/non_generic_invocation_all_first_expression_types_test.dart
+++ /dev/null
@@ -1,88 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test verifies that `EXPR<a,b>-x` is properly parsed as a pair of
-// expressions separated by a `,`, for all types of expressions that may appear
-// as EXPR.  We try to pay extra attention to expressions that will become
-// ambiguous when the "constructor tearoffs" feature is enabled (that is, where
-// interpreting the `<` and `>` as delimiting a list of type arguments would
-// also have led to a valid parse).
-
-import '../syntax_helper.dart';
-
-class C extends SyntaxTracker {
-  C([Object x = absent, Object y = absent])
-      : super('new C${SyntaxTracker.args(x, y)}');
-
-  C.syntax(String s) : super(s);
-
-  Object operator <(Object other) =>
-      SyntaxTracker('(${syntax(this)} < ${syntax(other)})');
-}
-
-class ThisTest extends C {
-  ThisTest() : super.syntax('this');
-
-  void test() {
-    checkSyntax(f(this < C, C > -x), 'f((this < C), (C > (-x)))');
-    // Note: SyntaxTracker can't see the parens around `this` in the line below
-    checkSyntax(f((this) < C, C > -x), 'f((this < C), (C > (-x)))');
-  }
-}
-
-class SuperTest extends C {
-  SuperTest() : super.syntax('super');
-
-  void test() {
-    checkSyntax(f(super < C, C > -x), 'f((super < C), (C > (-x)))');
-  }
-}
-
-main() {
-  const y = 123;
-  SyntaxTracker.known[C] = 'C';
-  SyntaxTracker.known[#x] = '#x';
-  SyntaxTracker.known[y] = 'y';
-  checkSyntax(f(x < C, C > -x), 'f((x < C), (C > (-x)))');
-  checkSyntax(f(x.getter < C, C > -x), 'f((x.getter < C), (C > (-x)))');
-  checkSyntax(f(C() < C, C > -x), 'f((new C() < C), (C > (-x)))');
-  checkSyntax(f(new C() < C, C > -x), 'f((new C() < C), (C > (-x)))');
-  checkSyntax(f(f() < C, C > -x), 'f((f() < C), (C > (-x)))');
-  checkSyntax(f(x.method() < C, C > -x), 'f((x.method() < C), (C > (-x)))');
-  checkSyntax(f(x[0]() < C, C > -x), 'f((x[0]() < C), (C > (-x)))');
-  checkSyntax(f(#x < C, C > -x), 'f((#x < C), (C > (-x)))');
-  checkSyntax(f(null < C, C > -x), 'f((null < C), (C > (-x)))');
-  checkSyntax(f(0 < y, C > -x), 'f(true, (C > (-x)))');
-  checkSyntax(f(0.5 < y, C > -x), 'f(true, (C > (-x)))');
-  checkSyntax(f([] < C, C > -x), 'f(([] < C), (C > (-x)))');
-  checkSyntax(f([0] < C, C > -x), 'f(([0] < C), (C > (-x)))');
-  checkSyntax(f({} < C, C > -x), 'f(({} < C), (C > (-x)))');
-  checkSyntax(f({0} < C, C > -x), 'f(({0} < C), (C > (-x)))');
-  checkSyntax(f({0: 0} < C, C > -x), 'f(({ 0: 0 } < C), (C > (-x)))');
-  checkSyntax(f(true < C, C > -x), 'f((true < C), (C > (-x)))');
-  checkSyntax(f("s" < C, C > -x), 'f(("s" < C), (C > (-x)))');
-  checkSyntax(f(r"s" < C, C > -x), 'f(("s" < C), (C > (-x)))');
-  checkSyntax(f(x[0] < C, C > -x), 'f((x[0] < C), (C > (-x)))');
-  // Note: SyntaxTracker can't see the parens around `x` in the line below
-  checkSyntax(f((x) < C, C > -x), 'f((x < C), (C > (-x)))');
-  checkSyntax(f(-x < C, C > -x), 'f(((-x) < C), (C > (-x)))');
-  checkSyntax(f(!true < C, C > -x), 'f((false < C), (C > (-x)))');
-  checkSyntax(f(!(true) < C, C > -x), 'f((false < C), (C > (-x)))');
-  checkSyntax(f(~x < C, C > -x), 'f(((~x) < C), (C > (-x)))');
-  checkSyntax(f(x * x < C, C > -x), 'f(((x * x) < C), (C > (-x)))');
-  checkSyntax(f(x / x < C, C > -x), 'f(((x / x) < C), (C > (-x)))');
-  checkSyntax(f(x ~/ x < C, C > -x), 'f(((x ~/ x) < C), (C > (-x)))');
-  checkSyntax(f(x % x < C, C > -x), 'f(((x % x) < C), (C > (-x)))');
-  checkSyntax(f(x + x < C, C > -x), 'f(((x + x) < C), (C > (-x)))');
-  checkSyntax(f(x - x < C, C > -x), 'f(((x - x) < C), (C > (-x)))');
-  checkSyntax(f(x << x < C, C > -x), 'f(((x << x) < C), (C > (-x)))');
-  checkSyntax(f(x >> x < C, C > -x), 'f(((x >> x) < C), (C > (-x)))');
-  checkSyntax(f(x & x < C, C > -x), 'f(((x & x) < C), (C > (-x)))');
-  checkSyntax(f(x ^ x < C, C > -x), 'f(((x ^ x) < C), (C > (-x)))');
-  checkSyntax(f(x | x < C, C > -x), 'f(((x | x) < C), (C > (-x)))');
-  ThisTest().test();
-  SuperTest().test();
-}
diff --git a/tests/language_2/generic_methods/non_generic_invocation_all_first_types_test.dart b/tests/language_2/generic_methods/non_generic_invocation_all_first_types_test.dart
deleted file mode 100644
index 7d817eeeced..00000000000
--- a/tests/language_2/generic_methods/non_generic_invocation_all_first_types_test.dart
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test verifies that `f<EXPR,b>(x)` is properly parsed as a pair of
-// expressions separated by a `,`, for all types of expressions that may appear
-// as EXPR that can't be parsed as types.
-
-import '../syntax_helper.dart';
-
-class C extends SyntaxTracker {
-  C([Object x = absent, Object y = absent])
-      : super('new C${SyntaxTracker.args(x, y)}');
-
-  C.syntax(String s) : super(s);
-}
-
-class ThisTest extends C {
-  ThisTest() : super.syntax('this');
-
-  void test() {
-    checkSyntax(f(x < this, C > (x)), 'f((x < this), (C > x))');
-    // Note: SyntaxTracker can't see the parens around `this` in the line below
-    checkSyntax(f(x < (this), C > (x)), 'f((x < this), (C > x))');
-  }
-}
-
-main() {
-  SyntaxTracker.known[C] = 'C';
-  SyntaxTracker.known[#x] = '#x';
-  checkSyntax(
-      f(x < x.getter.getter, C > (x)), 'f((x < x.getter.getter), (C > x))');
-  checkSyntax(f(x < C(), C > (x)), 'f((x < new C()), (C > x))');
-  checkSyntax(f(x < new C(), C > (x)), 'f((x < new C()), (C > x))');
-  checkSyntax(f(x < f(), C > (x)), 'f((x < f()), (C > x))');
-  checkSyntax(f(x < x.method(), C > (x)), 'f((x < x.method()), (C > x))');
-  checkSyntax(f(x < x[0](), C > (x)), 'f((x < x[0]()), (C > x))');
-  checkSyntax(f(x < #x, C > (x)), 'f((x < #x), (C > x))');
-  checkSyntax(f(x < null, C > (x)), 'f((x < null), (C > x))');
-  checkSyntax(f(x < 0, C > (x)), 'f((x < 0), (C > x))');
-  checkSyntax(f(x < 0.5, C > (x)), 'f((x < 0.5), (C > x))');
-  checkSyntax(f(x < [], C > (x)), 'f((x < []), (C > x))');
-  checkSyntax(f(x < [0], C > (x)), 'f((x < [0]), (C > x))');
-  checkSyntax(f(x < {}, C > (x)), 'f((x < {}), (C > x))');
-  checkSyntax(f(x < {0}, C > (x)), 'f((x < {0}), (C > x))');
-  checkSyntax(f(x < {0: 0}, C > (x)), 'f((x < { 0: 0 }), (C > x))');
-  checkSyntax(f(x < true, C > (x)), 'f((x < true), (C > x))');
-  checkSyntax(f(x < "s", C > (x)), 'f((x < "s"), (C > x))');
-  checkSyntax(f(x < r"s", C > (x)), 'f((x < "s"), (C > x))');
-  checkSyntax(f(x < x[0], C > (x)), 'f((x < x[0]), (C > x))');
-  // Note: SyntaxTracker can't see the parens around `x` in the line below
-  checkSyntax(f(x < (x), C > (x)), 'f((x < x), (C > x))');
-  checkSyntax(f(x < -x, C > (x)), 'f((x < (-x)), (C > x))');
-  checkSyntax(f(x < !true, C > (x)), 'f((x < false), (C > x))');
-  checkSyntax(f(x < !(true), C > (x)), 'f((x < false), (C > x))');
-  checkSyntax(f(x < ~x, C > (x)), 'f((x < (~x)), (C > x))');
-  checkSyntax(f(x < x * x, C > (x)), 'f((x < (x * x)), (C > x))');
-  checkSyntax(f(x < x / x, C > (x)), 'f((x < (x / x)), (C > x))');
-  checkSyntax(f(x < x ~/ x, C > (x)), 'f((x < (x ~/ x)), (C > x))');
-  checkSyntax(f(x < x % x, C > (x)), 'f((x < (x % x)), (C > x))');
-  checkSyntax(f(x < x + x, C > (x)), 'f((x < (x + x)), (C > x))');
-  checkSyntax(f(x < x - x, C > (x)), 'f((x < (x - x)), (C > x))');
-  checkSyntax(f(x < x << x, C > (x)), 'f((x < (x << x)), (C > x))');
-  checkSyntax(f(x < x >> x, C > (x)), 'f((x < (x >> x)), (C > x))');
-  checkSyntax(f(x < x & x, C > (x)), 'f((x < (x & x)), (C > x))');
-  checkSyntax(f(x < x ^ x, C > (x)), 'f((x < (x ^ x)), (C > x))');
-  checkSyntax(f(x < x | x, C > (x)), 'f((x < (x | x)), (C > x))');
-  ThisTest().test();
-}
diff --git a/tests/language_2/generic_methods/non_generic_invocation_all_second_expression_types_test.dart b/tests/language_2/generic_methods/non_generic_invocation_all_second_expression_types_test.dart
deleted file mode 100644
index 53bfeb73ed4..00000000000
--- a/tests/language_2/generic_methods/non_generic_invocation_all_second_expression_types_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test verifies that `f<a,b>EXPR` is properly parsed as a pair of
-// expressions separated by a `,`, for all types of expressions that may appear
-// as EXPR.  We try to pay extra attention to expressions that will become
-// ambiguous when the "constructor tearoffs" feature is enabled (that is, where
-// interpreting the `<` and `>` as delimiting a list of type arguments would
-// also have led to a valid parse).
-
-import '../syntax_helper.dart';
-
-class C extends SyntaxTracker {
-  C([Object x = absent, Object y = absent])
-      : super('new C${SyntaxTracker.args(x, y)}');
-
-  C.syntax(String s) : super(s);
-
-  Object operator <(Object other) =>
-      SyntaxTracker('(${syntax(this)} < ${syntax(other)})');
-}
-
-class ThisTest extends C {
-  ThisTest() : super.syntax('this');
-
-  void test() {
-    checkSyntax(f(x < C, C > this), 'f((x < C), (C > this))');
-  }
-}
-
-main() {
-  SyntaxTracker.known[C] = 'C';
-  SyntaxTracker.known[#x] = '#x';
-  checkSyntax(f(x < C, C > x), 'f((x < C), (C > x))');
-  checkSyntax(f(x < C, C > x.getter), 'f((x < C), (C > x.getter))');
-  checkSyntax(f(x < C, C > C()), 'f((x < C), (C > new C()))');
-  checkSyntax(f(x < C, C > new C()), 'f((x < C), (C > new C()))');
-  checkSyntax(f(x < C, C > f()), 'f((x < C), (C > f()))');
-  checkSyntax(f(x < C, C > x.method()), 'f((x < C), (C > x.method()))');
-  checkSyntax(f(x < C, C > x[0]()), 'f((x < C), (C > x[0]()))');
-  checkSyntax(f(x < C, C > #x), 'f((x < C), (C > #x))');
-  checkSyntax(f(x < C, C > null), 'f((x < C), (C > null))');
-  checkSyntax(f(x < C, C > 0), 'f((x < C), (C > 0))');
-  checkSyntax(f(x < C, C > 0.5), 'f((x < C), (C > 0.5))');
-  checkSyntax(f(x < C, C > []), 'f((x < C), (C > []))');
-  checkSyntax(f(x < C, C > [0]), 'f((x < C), (C > [0]))');
-  checkSyntax(f(x < C, C > {}), 'f((x < C), (C > {}))');
-  checkSyntax(f(x < C, C > {0}), 'f((x < C), (C > {0}))');
-  checkSyntax(f(x < C, C > {0: 0}), 'f((x < C), (C > { 0: 0 }))');
-  checkSyntax(f(x < C, C > true), 'f((x < C), (C > true))');
-  checkSyntax(f(x < C, C > "s"), 'f((x < C), (C > "s"))');
-  checkSyntax(f(x < C, C > r"s"), 'f((x < C), (C > "s"))');
-  checkSyntax(f(x < C, C > x[0]), 'f((x < C), (C > x[0]))');
-  checkSyntax(f(x < C, C > -x), 'f((x < C), (C > (-x)))');
-  checkSyntax(f(x < C, C > !true), 'f((x < C), (C > false))');
-  checkSyntax(f(x < C, C > !(true)), 'f((x < C), (C > false))');
-  checkSyntax(f(x < C, C > ~x), 'f((x < C), (C > (~x)))');
-  checkSyntax(f(x < C, C > x * x), 'f((x < C), (C > (x * x)))');
-  checkSyntax(f(x < C, C > x / x), 'f((x < C), (C > (x / x)))');
-  checkSyntax(f(x < C, C > x ~/ x), 'f((x < C), (C > (x ~/ x)))');
-  checkSyntax(f(x < C, C > x % x), 'f((x < C), (C > (x % x)))');
-  checkSyntax(f(x < C, C > x + x), 'f((x < C), (C > (x + x)))');
-  checkSyntax(f(x < C, C > x - x), 'f((x < C), (C > (x - x)))');
-  checkSyntax(f(x < C, C > x << x), 'f((x < C), (C > (x << x)))');
-  checkSyntax(f(x < C, C > x >> x), 'f((x < C), (C > (x >> x)))');
-  checkSyntax(f(x < C, C > x & x), 'f((x < C), (C > (x & x)))');
-  checkSyntax(f(x < C, C > x ^ x), 'f((x < C), (C > (x ^ x)))');
-  checkSyntax(f(x < C, C > x | x), 'f((x < C), (C > (x | x)))');
-  ThisTest().test();
-}
diff --git a/tests/language_2/generic_methods/non_generic_invocation_all_second_types_test.dart b/tests/language_2/generic_methods/non_generic_invocation_all_second_types_test.dart
deleted file mode 100644
index c388dda1775..00000000000
--- a/tests/language_2/generic_methods/non_generic_invocation_all_second_types_test.dart
+++ /dev/null
@@ -1,85 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test verifies that `f<a,EXPR>(x)` is properly parsed as a pair of
-// expressions separated by a `,`, for all types of expressions that may appear
-// as EXPR that can't be parsed as types.
-
-import '../syntax_helper.dart';
-
-class C extends SyntaxTracker {
-  C([Object x = absent, Object y = absent])
-      : super('new C${SyntaxTracker.args(x, y)}');
-
-  C.syntax(String s) : super(s);
-
-  Object operator >(Object other) =>
-      SyntaxTracker('(${syntax(this)} > ${syntax(other)})');
-}
-
-class ThisTest extends C {
-  ThisTest() : super.syntax('this');
-
-  void test() {
-    checkSyntax(f(x < C, this > (x)), 'f((x < C), (this > x))');
-    // Note: SyntaxTracker can't see the parens around `this` in the line below
-    checkSyntax(f(x < C, (this) > (x)), 'f((x < C), (this > x))');
-  }
-}
-
-class SuperTest extends C {
-  SuperTest() : super.syntax('super');
-
-  void test() {
-    checkSyntax(f(x < C, super > (x)), 'f((x < C), (super > x))');
-  }
-}
-
-main() {
-  const y = 123;
-  SyntaxTracker.known[C] = 'C';
-  SyntaxTracker.known[#x] = '#x';
-  SyntaxTracker.known[y] = 'y';
-  checkSyntax(
-      f(x < C, x.getter.getter > (x)), 'f((x < C), (x.getter.getter > x))');
-  checkSyntax(f(x < C, C() > (x)), 'f((x < C), (new C() > x))');
-  checkSyntax(f(x < C, new C() > (x)), 'f((x < C), (new C() > x))');
-  checkSyntax(f(x < C, f() > (x)), 'f((x < C), (f() > x))');
-  checkSyntax(f(x < C, x.method() > (x)), 'f((x < C), (x.method() > x))');
-  checkSyntax(f(x < C, x[0]() > (x)), 'f((x < C), (x[0]() > x))');
-  checkSyntax(f(x < C, #x > (x)), 'f((x < C), (#x > x))');
-  checkSyntax(f(x < C, null > (x)), 'f((x < C), (null > x))');
-  checkSyntax(f(x < C, 0 > (y)), 'f((x < C), false)');
-  checkSyntax(f(x < C, 0.5 > (y)), 'f((x < C), false)');
-  checkSyntax(f(x < C, [] > (x)), 'f((x < C), ([] > x))');
-  checkSyntax(f(x < C, [0] > (x)), 'f((x < C), ([0] > x))');
-  checkSyntax(f(x < C, {} > (x)), 'f((x < C), ({} > x))');
-  checkSyntax(f(x < C, {0} > (x)), 'f((x < C), ({0} > x))');
-  checkSyntax(f(x < C, {0: 0} > (x)), 'f((x < C), ({ 0: 0 } > x))');
-  checkSyntax(f(x < C, true > (x)), 'f((x < C), (true > x))');
-  checkSyntax(f(x < C, "s" > (x)), 'f((x < C), ("s" > x))');
-  checkSyntax(f(x < C, r"s" > (x)), 'f((x < C), ("s" > x))');
-  checkSyntax(f(x < C, x[0] > (x)), 'f((x < C), (x[0] > x))');
-  // Note: SyntaxTracker can't see the parens around `x` in the line below
-  checkSyntax(f(x < C, (x) > (x)), 'f((x < C), (x > x))');
-  checkSyntax(f(x < C, -x > (x)), 'f((x < C), ((-x) > x))');
-  checkSyntax(f(x < C, !true > (x)), 'f((x < C), (false > x))');
-  checkSyntax(f(x < C, !(true) > (x)), 'f((x < C), (false > x))');
-  checkSyntax(f(x < C, ~x > (x)), 'f((x < C), ((~x) > x))');
-  checkSyntax(f(x < C, x * x > (x)), 'f((x < C), ((x * x) > x))');
-  checkSyntax(f(x < C, x / x > (x)), 'f((x < C), ((x / x) > x))');
-  checkSyntax(f(x < C, x ~/ x > (x)), 'f((x < C), ((x ~/ x) > x))');
-  checkSyntax(f(x < C, x % x > (x)), 'f((x < C), ((x % x) > x))');
-  checkSyntax(f(x < C, x + x > (x)), 'f((x < C), ((x + x) > x))');
-  checkSyntax(f(x < C, x - x > (x)), 'f((x < C), ((x - x) > x))');
-  checkSyntax(f(x < C, x << x > (x)), 'f((x < C), ((x << x) > x))');
-  checkSyntax(f(x < C, x >> x > (x)), 'f((x < C), ((x >> x) > x))');
-  checkSyntax(f(x < C, x & x > (x)), 'f((x < C), ((x & x) > x))');
-  checkSyntax(f(x < C, x ^ x > (x)), 'f((x < C), ((x ^ x) > x))');
-  checkSyntax(f(x < C, x | x > (x)), 'f((x < C), ((x | x) > x))');
-  ThisTest().test();
-  SuperTest().test();
-}
diff --git a/tests/language_2/generic_methods/optional_parameters_test.dart b/tests/language_2/generic_methods/optional_parameters_test.dart
deleted file mode 100644
index f6250b79be6..00000000000
--- a/tests/language_2/generic_methods/optional_parameters_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that generic methods with optional parameters are of correct type.
-
-library generic_methods_optional_parameters_test;
-
-import "package:expect/expect.dart";
-
-typedef FunObjObj = Object Function<T>(Object, [Object]);
-typedef FunTypObj = Object Function<T>(T, [Object]);
-typedef FunObjTyp = Object Function<T>(Object, [T]);
-typedef FunTypTyp = Object Function<T>(T, [T]);
-
-Object funObjObj<T>(Object x, [Object y]) => x;
-Object funTypObj<T>(T x, [Object y]) => y;
-Object funObjTyp<T>(Object x, [T y]) => x;
-Object funTypTyp<T>(T x, [T y]) => null;
-
-main() {
-  Expect.isTrue(funObjObj is FunObjObj);
-  Expect.isTrue(funObjObj is FunTypObj);
-  Expect.isTrue(funObjObj is FunObjTyp);
-  Expect.isTrue(funObjObj is FunTypTyp);
-
-  Expect.isTrue(funTypObj is! FunObjObj);
-  Expect.isTrue(funTypObj is FunTypObj);
-  Expect.isTrue(funTypObj is! FunObjTyp);
-  Expect.isTrue(funTypObj is FunTypTyp);
-
-  Expect.isTrue(funObjTyp is! FunObjObj);
-  Expect.isTrue(funObjTyp is! FunTypObj);
-  Expect.isTrue(funObjTyp is FunObjTyp);
-  Expect.isTrue(funObjTyp is FunTypTyp);
-
-  Expect.isTrue(funTypTyp is! FunObjObj);
-  Expect.isTrue(funTypTyp is! FunTypObj);
-  Expect.isTrue(funTypTyp is! FunObjTyp);
-  Expect.isTrue(funTypTyp is FunTypTyp);
-}
diff --git a/tests/language_2/generic_methods/overriding_test.dart b/tests/language_2/generic_methods/overriding_test.dart
deleted file mode 100644
index ffa4f5080fe..00000000000
--- a/tests/language_2/generic_methods/overriding_test.dart
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that generic methods can be overloaded (a) with widened type bounds, and
-// (b) using the bound as the type of the parameter in the overloaded method.
-
-library generic_methods_overriding_test;
-
-import "package:expect/expect.dart";
-
-class X {}
-
-class Y extends X {}
-
-class Z extends Y {}
-
-class C {
-  String fun<T extends Y>(T t) => "C";
-}
-
-class D extends C {
-  String fun<T extends X>(T t) => "D"; //# 01: compile-time error
-  String fun<T extends Y>(T t) => "D"; //# 02: ok
-}
-
-class E extends C {
-  String fun<T>(Y y) => "E"; //# 03: compile-time error
-  String fun<T extends Y>(Y y) => "E"; //# 04: ok
-}
-
-class F extends C {
-  String foobar(Z z) {
-    return "FZ";
-  }
-
-  String fun<T extends Y>(T t) {
-    if (t is Z) {
-      return this.foobar(t as Z); //# 05: ok
-      return this.foobar(t); //# 06: ok
-    }
-    return "FY";
-  }
-}
-
-main() {
-  Y y = new Y();
-  Z z = new Z();
-
-  C c = new C();
-  D d = new D();
-  E e = new E();
-  F f = new F();
-
-  Expect.equals(c.fun<Y>(y), "C");
-  Expect.equals(d.fun<Y>(y), "D"); //# 02: continued
-  Expect.equals(e.fun<Y>(y), "E"); //# 04: continued
-  Expect.equals(f.fun<Y>(y), "FY"); //# 05: continued
-  Expect.equals(f.fun<Z>(z), "FZ"); //# 05: continued
-  Expect.equals(f.fun<Y>(y), "FY"); //# 06: continued
-  Expect.equals(f.fun<Z>(z), "FZ"); //# 06: continued
-}
diff --git a/tests/language_2/generic_methods/recursive_bound_test.dart b/tests/language_2/generic_methods/recursive_bound_test.dart
deleted file mode 100644
index a6ab1556b6f..00000000000
--- a/tests/language_2/generic_methods/recursive_bound_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that F-bounded quantification works for generic methods, and that types
-// that are passed to generic methods in dynamic calls are checked for being
-// recursively defined.
-
-library generic_methods_recursive_bound_test;
-
-import "package:expect/expect.dart";
-
-abstract class I<T> {
-  bool fun(T x);
-}
-
-void foo<T extends I<T>>(List<T> a) {
-  if (a.length > 1) {
-    a[0].fun(a[1]);
-  }
-}
-
-class C implements I<C> {
-  bool fun(C c) => true;
-}
-
-main() {
-  foo<C>(<C>[new C(), new C()]); //# 01: ok
-
-  dynamic bar = foo;
-  List<int> list2 = <int>[4, 2];
-  // The type int does not extend I<int>.
-  foo<int>(list2); //# 02: compile-time error
-  bar<int>(list2); //# 03: runtime error
-}
diff --git a/tests/language_2/generic_methods/reuse_type_variables_test.dart b/tests/language_2/generic_methods/reuse_type_variables_test.dart
deleted file mode 100644
index aca75f960f9..00000000000
--- a/tests/language_2/generic_methods/reuse_type_variables_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that type parameter can be passed as a type argument in a definition of
-// a local variable, and that this local variable is correctly constructed.
-
-library generic_methods_reuse_type_variables_test;
-
-import "package:expect/expect.dart";
-
-int fun<T extends String>(T t) {
-  List<T> list = <T>[t, t, t];
-  Expect.isTrue(list is List<String>);
-  Expect.isTrue(list is! List<int>);
-  return list.length;
-}
-
-main() {
-  Expect.equals(fun<String>("foo"), 3);
-}
diff --git a/tests/language_2/generic_methods/shadowing_test.dart b/tests/language_2/generic_methods/shadowing_test.dart
deleted file mode 100644
index ea975dce9e7..00000000000
--- a/tests/language_2/generic_methods/shadowing_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that type parameters in generic methods can be shadowed.
-
-library generic_methods_shadowing_test;
-
-import "package:expect/expect.dart";
-
-class X {}
-
-class Y {}
-
-bool foo<T, S>(T t, S s) {
-  // The type parameter T of bar shadows the type parameter T of foo.
-  bool bar<T>(T t) {
-    return t is T && t is S;
-  }
-
-  return bar<S>(s);
-}
-
-main() {
-  Expect.isTrue(foo<X, Y>(new X(), new Y()));
-}
diff --git a/tests/language_2/generic_methods/simple_as_expression_test.dart b/tests/language_2/generic_methods/simple_as_expression_test.dart
deleted file mode 100644
index 947d02fd60f..00000000000
--- a/tests/language_2/generic_methods/simple_as_expression_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that type parameters in generic methods can be used in as-expressions.
-
-library generic_methods_simple_as_expression_test;
-
-import "package:expect/expect.dart";
-
-T cast<T>(dynamic obj) {
-  return obj as T;
-}
-
-main() {
-  Expect.equals(cast<num>(42), 42); //# 01: ok
-  cast<String>(42); //# 02: runtime error
-}
diff --git a/tests/language_2/generic_methods/simple_is_expression_test.dart b/tests/language_2/generic_methods/simple_is_expression_test.dart
deleted file mode 100644
index bf3e5839f04..00000000000
--- a/tests/language_2/generic_methods/simple_is_expression_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that type parameters in generic methods can be used in is-expressions.
-
-library generic_methods_simple_is_expression_test;
-
-import "package:expect/expect.dart";
-
-bool fun<T>(int n) {
-  return n is T;
-}
-
-main() {
-  Expect.isTrue(fun<int>(42));
-  Expect.isFalse(fun<String>(42));
-}
diff --git a/tests/language_2/generic_methods/tearoff_specialization_test.dart b/tests/language_2/generic_methods/tearoff_specialization_test.dart
deleted file mode 100644
index db4e2cfb051..00000000000
--- a/tests/language_2/generic_methods/tearoff_specialization_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that generic methods can be specialized after being torn off, and that
-// their specialized versions are correctly constructed.
-
-library generic_methods_tearoff_specialization_test;
-
-import "package:expect/expect.dart";
-
-class A {
-  T fun<T>(T t) => t;
-}
-
-typedef Int2Int = int Function(int);
-typedef String2String = String Function(String);
-typedef Object2Object = Object Function(Object);
-typedef GenericMethod = T Function<T>(T);
-
-main() {
-  A a = new A();
-  Int2Int f = a.fun;
-  String2String g = a.fun;
-  Object2Object h = a.fun;
-  var generic = a.fun;
-
-  Expect.isTrue(f is Int2Int);
-  Expect.isTrue(f is! String2String);
-  Expect.isTrue(f is! Object2Object);
-  Expect.isTrue(f is! GenericMethod);
-
-  Expect.isTrue(g is! Int2Int);
-  Expect.isTrue(g is String2String);
-  Expect.isTrue(g is! Object2Object);
-  Expect.isTrue(g is! GenericMethod);
-
-  Expect.isTrue(h is! Int2Int);
-  Expect.isTrue(h is! String2String);
-  Expect.isTrue(h is Object2Object);
-  Expect.isTrue(g is! GenericMethod);
-
-  Expect.isTrue(generic is! Int2Int);
-  Expect.isTrue(generic is! String2String);
-  Expect.isTrue(generic is! Object2Object);
-  Expect.isTrue(generic is GenericMethod);
-}
diff --git a/tests/language_2/generic_methods/type_expression_test.dart b/tests/language_2/generic_methods/type_expression_test.dart
deleted file mode 100644
index b39a6735fbc..00000000000
--- a/tests/language_2/generic_methods/type_expression_test.dart
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Dart test on the usage of method type arguments in type expressions.
-
-import "package:expect/expect.dart";
-
-bool f1<T>(Object o) => o is T;
-
-bool f2<T>(Object o) => o is List<T>;
-
-bool f3<T>(Object o) => o is! T;
-
-bool f4<T>(Object o) => o is! List<T>;
-
-T f5<T>(Object o) => o as T;
-
-List<T> f6<T>(Object o) => o as List<T>;
-
-Type f7<T>() => T;
-
-class TypeValue<X> {
-  Type get value => X;
-}
-
-Type f8<T>() => new TypeValue<List<T>>().value;
-
-bool f9<T>(Object o) => o is Map<T, String>;
-
-class IsMap<A> {
-  @pragma('dart2js:noInline')
-  bool check<B>(o) => o is Map<A, B>;
-}
-
-main() {
-  String s = "Hello!";
-  List<String> ss = <String>[s];
-  Expect.isTrue(f1<int>(42));
-  Expect.isFalse(f1<String>(42));
-  Expect.isTrue(f2<int>(<int>[42]));
-  Expect.isFalse(f2<String>(<int>[42])); // `is List<String>` is false.
-  Expect.isFalse(f3<int>(42));
-  Expect.isTrue(f3<String>(42));
-  Expect.isFalse(f4<int>(<int>[42]));
-  Expect.isTrue(f4<String>(<int>[42])); // `is! List<dynamic>` is true.
-  Expect.equals(f5<String>(s), s); // `s as String == s`
-  Expect.throwsTypeError(() => f5<int>(s)); // `s as int == s`
-  Expect.equals(f6<String>(ss), ss);
-  Expect.throwsTypeError(() => f6<int>(ss)); // `as List<int>` fails.
-  Expect.equals(f7<int>(), int);
-
-  // Returns `List<int>`.
-  Expect.equals(f8<int>(), new TypeValue<List<int>>().value);
-
-  Expect.isTrue(f9<int>(<int, String>{}));
-  Expect.isFalse(f9<int>(<bool, String>{}));
-  Expect.isFalse(f9<int>(<int, int>{}));
-
-  Expect.isTrue(new IsMap<int>().check<String>(<int, String>{}));
-  Expect.isFalse(new IsMap<int>().check<int>(<int, String>{}));
-}
diff --git a/tests/language_2/generic_methods/unused_parameter_test.dart b/tests/language_2/generic_methods/unused_parameter_test.dart
deleted file mode 100644
index f39af16ca53..00000000000
--- a/tests/language_2/generic_methods/unused_parameter_test.dart
+++ /dev/null
@@ -1,91 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that generic methods with unused parameters aren't treated as
-// non-generic methods, but can be specialized as such.
-
-library generic_methods_unused_parameter_test;
-
-import "package:expect/expect.dart";
-
-typedef Fun = int Function();
-typedef FunReq = int Function(int);
-typedef FunOpt = int Function([int]);
-typedef FunReqOpt = int Function(int, [int]);
-typedef FunNam = int Function({int p});
-typedef FunReqNam = int Function(int, {int p});
-
-typedef FunTyp = int Function<T>();
-typedef FunTypReq = int Function<T>(int);
-typedef FunTypOpt = int Function<T>([int]);
-typedef FunTypReqOpt = int Function<T>(int, [int]);
-typedef FunTypNam = int Function<T>({int p});
-typedef FunTypReqNam = int Function<T>(int, {int p});
-
-int fun() {}
-int funReq(int x) => x;
-int funOpt([int y]) => y ?? 42;
-int funReqOpt(int x, [int y]) => x;
-int funNam({int p}) => p ?? 42;
-int funReqNam(int x, {int p}) => x;
-
-int funTyp<T>() {}
-int funTypReq<T>(int x) => x;
-int funTypOpt<T>([int y]) => y ?? 42;
-int funTypReqOpt<T>(int x, [int y]) => x;
-int funTypNam<T>({int p}) => p ?? 42;
-int funTypReqNam<T>(int x, {int p}) => x;
-
-main() {
-  Fun varFun = funTyp;
-  FunReq varFunReq = funTypReq;
-  FunOpt varFunOpt = funTypOpt;
-  FunReqOpt varFunReqOpt = funTypReqOpt;
-  FunNam varFunNam = funTypNam;
-  FunReqNam varFunReqNam = funTypReqNam;
-
-  Expect.isTrue(fun is Fun);
-  Expect.isTrue(fun is! FunTyp);
-  Expect.isTrue(funTyp is! Fun);
-  Expect.isTrue(funTyp is FunTyp);
-  Expect.isTrue(varFun is Fun);
-  Expect.isTrue(varFun is! FunTyp);
-
-  Expect.isTrue(funReq is FunReq);
-  Expect.isTrue(funReq is! FunTypReq);
-  Expect.isTrue(funTypReq is! FunReq);
-  Expect.isTrue(funTypReq is FunTypReq);
-  Expect.isTrue(varFunReq is FunReq);
-  Expect.isTrue(varFunReq is! FunTypReq);
-
-  Expect.isTrue(funOpt is FunOpt);
-  Expect.isTrue(funOpt is! FunTypOpt);
-  Expect.isTrue(funTypOpt is! FunOpt);
-  Expect.isTrue(funTypOpt is FunTypOpt);
-  Expect.isTrue(varFunOpt is FunOpt);
-  Expect.isTrue(varFunOpt is! FunTypOpt);
-
-  Expect.isTrue(funReqOpt is FunReqOpt);
-  Expect.isTrue(funReqOpt is! FunTypReqOpt);
-  Expect.isTrue(funTypReqOpt is! FunReqOpt);
-  Expect.isTrue(funTypReqOpt is FunTypReqOpt);
-  Expect.isTrue(varFunReqOpt is FunReqOpt);
-  Expect.isTrue(varFunReqOpt is! FunTypReqOpt);
-
-  Expect.isTrue(funNam is FunNam);
-  Expect.isTrue(funNam is! FunTypNam);
-  Expect.isTrue(funTypNam is! FunNam);
-  Expect.isTrue(funTypNam is FunTypNam);
-  Expect.isTrue(varFunNam is FunNam);
-  Expect.isTrue(varFunNam is! FunTypNam);
-
-  Expect.isTrue(funReqNam is FunReqNam);
-  Expect.isTrue(funReqNam is! FunTypReqNam);
-  Expect.isTrue(funTypReqNam is! FunReqNam);
-  Expect.isTrue(funTypReqNam is FunTypReqNam);
-  Expect.isTrue(varFunReqNam is FunReqNam);
-  Expect.isTrue(varFunReqNam is! FunTypReqNam);
-}
diff --git a/tests/language_2/getter/closure_execution_order_test.dart b/tests/language_2/getter/closure_execution_order_test.dart
deleted file mode 100644
index 9eebed680a2..00000000000
--- a/tests/language_2/getter/closure_execution_order_test.dart
+++ /dev/null
@@ -1,91 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Test that a getter is evaluated after the arguments, when a getter is
-// for invoking a method. See chapter 'Method Invocation' in specification.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var counter = 0;
-
-class Test1 {
-  get a {
-    Expect.equals(1, counter);
-    counter++;
-    return (c) {};
-  }
-
-  b() {
-    Expect.equals(0, counter);
-    counter++;
-    return 1;
-  }
-}
-
-class Test2 {
-  static get a {
-    Expect.equals(0, counter);
-    counter++;
-    return (c) {};
-  }
-
-  static b() {
-    Expect.equals(1, counter);
-    counter++;
-    return 1;
-  }
-}
-
-get a {
-  Expect.equals(0, counter);
-  counter++;
-  return (c) {};
-}
-
-b() {
-  Expect.equals(1, counter);
-  counter++;
-  return 1;
-}
-
-main() {
-  var failures = [];
-  try {
-    // Check instance getters.
-    counter = 0;
-    var o = new Test1();
-    o.a(o.b());
-    Expect.equals(2, counter);
-  } catch (exc, stack) {
-    failures.add(exc);
-    failures.add(stack);
-  }
-  try {
-    // Check static getters.
-    counter = 0;
-    Test2.a(Test2.b());
-    Expect.equals(2, counter);
-  } catch (exc, stack) {
-    failures.add(exc);
-    failures.add(stack);
-  }
-  try {
-    // Check top-level getters.
-    counter = 0;
-    a(b());
-    Expect.equals(2, counter);
-  } catch (exc, stack) {
-    failures.add(exc);
-    failures.add(stack);
-  }
-  // If any of the tests failed print out the details and fail the test.
-  if (failures.length != 0) {
-    for (var msg in failures) {
-      print(msg.toString());
-    }
-    throw "${failures.length ~/ 2} tests failed.";
-  }
-}
diff --git a/tests/language_2/getter/declaration_test.dart b/tests/language_2/getter/declaration_test.dart
deleted file mode 100644
index eeab6b7ce57..00000000000
--- a/tests/language_2/getter/declaration_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Test that a getter takes no parameters.
-get m(extraParam) {
-//   ^
-// [analyzer] SYNTACTIC_ERROR.GETTER_WITH_PARAMETERS
-// [cfe] A getter can't have formal parameters.
-  return null;
-}
-
-main() {
-  m;
-}
diff --git a/tests/language_2/getter/no_setter2_runtime_test.dart b/tests/language_2/getter/no_setter2_runtime_test.dart
deleted file mode 100644
index b7724cba903..00000000000
--- a/tests/language_2/getter/no_setter2_runtime_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Verifies behavior with a static getter, but no field and no setter.
-
-import "package:expect/expect.dart";
-
-class Example {
-  static int _var = 1;
-  static int get nextVar => _var++;
-  Example() {
-
-
-  }
-  static test() {
-
-
-  }
-}
-
-class Example1 {
-  Example1(int i) {}
-}
-
-class Example2 extends Example1 {
-  static int _var = 1;
-  static int get nextVar => _var++;
-  Example2() : super(nextVar) {} // No 'this' in scope.
-}
-
-void main() {
-  Example x = new Example();
-  Example.test();
-  Example2 x2 = new Example2();
-}
diff --git a/tests/language_2/getter/no_setter2_test.dart b/tests/language_2/getter/no_setter2_test.dart
deleted file mode 100644
index 42af45955df..00000000000
--- a/tests/language_2/getter/no_setter2_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Verifies behavior with a static getter, but no field and no setter.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Example {
-  static int _var = 1;
-  static int get nextVar => _var++;
-  Example() {
-    nextVar++;
-//  ^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'nextVar'.
-    this.nextVar++;
-    //   ^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-    // [cfe] The getter 'nextVar' isn't defined for the class 'Example'.
-    //   ^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.INSTANCE_ACCESS_TO_STATIC_MEMBER
-    // [cfe] The setter 'nextVar' isn't defined for the class 'Example'.
-  }
-  static test() {
-    nextVar++;
-//  ^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'nextVar'.
-    this.nextVar++;
-//  ^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_REFERENCE_TO_THIS
-// [cfe] Expected identifier, but got 'this'.
-//       ^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INSTANCE_ACCESS_TO_STATIC_MEMBER
-//       ^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-  }
-}
-
-class Example1 {
-  Example1(int i) {}
-}
-
-class Example2 extends Example1 {
-  static int _var = 1;
-  static int get nextVar => _var++;
-  Example2() : super(nextVar) {} // No 'this' in scope.
-}
-
-void main() {
-  Example x = new Example();
-  Example.test();
-  Example2 x2 = new Example2();
-}
diff --git a/tests/language_2/getter/no_setter_runtime_test.dart b/tests/language_2/getter/no_setter_runtime_test.dart
deleted file mode 100644
index b7724cba903..00000000000
--- a/tests/language_2/getter/no_setter_runtime_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Verifies behavior with a static getter, but no field and no setter.
-
-import "package:expect/expect.dart";
-
-class Example {
-  static int _var = 1;
-  static int get nextVar => _var++;
-  Example() {
-
-
-  }
-  static test() {
-
-
-  }
-}
-
-class Example1 {
-  Example1(int i) {}
-}
-
-class Example2 extends Example1 {
-  static int _var = 1;
-  static int get nextVar => _var++;
-  Example2() : super(nextVar) {} // No 'this' in scope.
-}
-
-void main() {
-  Example x = new Example();
-  Example.test();
-  Example2 x2 = new Example2();
-}
diff --git a/tests/language_2/getter/no_setter_test.dart b/tests/language_2/getter/no_setter_test.dart
deleted file mode 100644
index 9690f56ce4e..00000000000
--- a/tests/language_2/getter/no_setter_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Verifies behavior with a static getter, but no field and no setter.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Example {
-  static int _var = 1;
-  static int get nextVar => _var++;
-  Example() {
-    nextVar = 1;
-//  ^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'nextVar'.
-    this.nextVar = 1;
-    //   ^^^^^^^
-    // [cfe] The setter 'nextVar' isn't defined for the class 'Example'.
-    //   ^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-  }
-  static test() {
-    nextVar = 0;
-//  ^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'nextVar'.
-    this.nextVar = 0;
-//  ^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_REFERENCE_TO_THIS
-// [cfe] Expected identifier, but got 'this'.
-//       ^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-  }
-}
-
-class Example1 {
-  Example1(int i) {}
-}
-
-class Example2 extends Example1 {
-  static int _var = 1;
-  static int get nextVar => _var++;
-  Example2() : super(nextVar) {} // No 'this' in scope.
-}
-
-void main() {
-  Example x = new Example();
-  Example.test();
-  Example2 x2 = new Example2();
-}
diff --git a/tests/language_2/getter/override2_test.dart b/tests/language_2/getter/override2_test.dart
deleted file mode 100644
index 548f4f93d8e..00000000000
--- a/tests/language_2/getter/override2_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that we report a compile-time error when an instance getter conflicts
-// with an inherited instance method of the same name.
-
-import "package:expect/expect.dart";
-
-class A {
-  var foo = 42; // //# 00: ok
-  get foo => 42; // //# 01: ok
-  foo() => 42; // //# 02: compile-time error
-  set foo(value) { } // //# 03: ok
-}
-
-class B extends A {
-  get foo => 42;
-}
-
-main() {
-  Expect.equals(42, new B().foo);
-}
diff --git a/tests/language_2/getter/override3_test.dart b/tests/language_2/getter/override3_test.dart
deleted file mode 100644
index 787ab7a717d..00000000000
--- a/tests/language_2/getter/override3_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that a getter in a subclass does not shadow the setter in the
-// superclass.
-import "package:expect/expect.dart";
-
-class A {
-  int _x = 42;
-  void set x(int val) {
-    _x = val;
-  }
-}
-
-class B extends A {
-  int get x => _x;
-}
-
-void main() {
-  var b = new B();
-  Expect.equals(42, b.x);
-
-  b.x = 21;
-  Expect.equals(21, b.x);
-}
diff --git a/tests/language_2/getter/override_test.dart b/tests/language_2/getter/override_test.dart
deleted file mode 100644
index 713e5d9c31b..00000000000
--- a/tests/language_2/getter/override_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that we report a compile-time error when a static getter conflicts with
-// an inherited instance member of the same name.
-
-import "package:expect/expect.dart";
-
-class A {
-  var foo = 42; // //# 00: compile-time error
-  get foo => 42; // //# 01: compile-time error
-  foo() => 42; // //# 02: compile-time error
-  set foo(value) { } // //# 03: compile-time error
-}
-
-class B extends A {
-  static get foo => 42;
-}
-
-main() {
-  Expect.equals(42, B.foo);
-}
diff --git a/tests/language_2/getter/parameters_runtime_test.dart b/tests/language_2/getter/parameters_runtime_test.dart
deleted file mode 100644
index 4d9a128871d..00000000000
--- a/tests/language_2/getter/parameters_runtime_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Test that a getter has no parameters.
-
-get f1 => null;
-get f2
-
-    => null;
-get f3
-
-    => null;
-get f4
-
-    => null;
-get f5
-
-    => null;
-
-main() {
-  f1;
-  f2;
-  f3;
-  f4;
-  f5;
-}
diff --git a/tests/language_2/getter/parameters_test.dart b/tests/language_2/getter/parameters_test.dart
deleted file mode 100644
index 12ce7e863f3..00000000000
--- a/tests/language_2/getter/parameters_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Test that a getter has no parameters.
-
-// @dart = 2.9
-
-get f1 => null;
-get f2
-()
-// [error line 11, column 1, length 1]
-// [analyzer] SYNTACTIC_ERROR.GETTER_WITH_PARAMETERS
-// [cfe] A getter can't have formal parameters.
-    => null;
-get f3
-(arg)
-// [error line 17, column 1, length 1]
-// [analyzer] SYNTACTIC_ERROR.GETTER_WITH_PARAMETERS
-// [cfe] A getter can't have formal parameters.
-    => null;
-get f4
-([arg])
-// [error line 23, column 1, length 1]
-// [analyzer] SYNTACTIC_ERROR.GETTER_WITH_PARAMETERS
-// [cfe] A getter can't have formal parameters.
-    => null;
-get f5
-({arg})
-// [error line 29, column 1, length 1]
-// [analyzer] SYNTACTIC_ERROR.GETTER_WITH_PARAMETERS
-// [cfe] A getter can't have formal parameters.
-    => null;
-
-main() {
-  f1;
-  f2;
-  f3;
-  f4;
-  f5;
-}
diff --git a/tests/language_2/getter/setter2_runtime_test.dart b/tests/language_2/getter/setter2_runtime_test.dart
deleted file mode 100644
index 5debd8f5e36..00000000000
--- a/tests/language_2/getter/setter2_runtime_test.dart
+++ /dev/null
@@ -1,87 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// [NNBD non-migrated]: This test relies on implicit downcasts which are an
-// error in NNBD, so has no version in language/.
-import "package:expect/expect.dart";
-
-// Tests classes with getters and setters that do not have the same type.
-
-class A {
-  int a() {
-    return 37;
-  }
-}
-
-class B extends A {
-  int b() {
-    return 38;
-  }
-}
-
-class C {}
-
-class T1 {
-  A getterField;
-  A get field {
-    return getterField;
-  }
-
-  // OK, B is assignable to A
-  void set field(B arg) {
-    getterField = arg;
-  }
-}
-
-class T2 {
-  A getterField;
-  C setterField;
-  A get field {
-    return getterField;
-  }
-
-  // Type C is not assignable to A
-
-}
-
-class T3 {
-  B getterField;
-  B get field {
-    return getterField;
-  }
-
-  // OK, A is assignable to B
-  void set field(A arg) {
-    getterField = arg;
-  }
-}
-
-main() {
-  T1 instance1 = new T1();
-
-  T3 instance3 = new T3();
-
-  instance1.field = new B();
-  A resultA = instance1.field;
-  Expect.throwsTypeError(() => instance1.field = new A() as dynamic);
-  B resultB = instance1.field;
-
-  int result;
-  result = instance1.field.a();
-  Expect.equals(37, result);
-
-  // Type 'A' has no method named 'b'
-
-
-  instance3.field = new B();
-  result = instance3.field.a();
-  Expect.equals(37, result);
-  result = instance3.field.b();
-  Expect.equals(38, result);
-}
diff --git a/tests/language_2/getter/setter2_test.dart b/tests/language_2/getter/setter2_test.dart
deleted file mode 100644
index 5fd824826e1..00000000000
--- a/tests/language_2/getter/setter2_test.dart
+++ /dev/null
@@ -1,88 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Tests classes with getters and setters that do not have the same type.
-
-class A {
-  int a() {
-    return 37;
-  }
-}
-
-class B extends A {
-  int b() {
-    return 38;
-  }
-}
-
-class C {}
-
-class T1 {
-  A getterField;
-  A get field {
-    return getterField;
-  }
-
-  // OK, B is assignable to A
-  void set field(B arg) {
-    getterField = arg;
-  }
-}
-
-class T2 {
-  A getterField;
-  C setterField;
-  A get field {
-  //    ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.GETTER_NOT_ASSIGNABLE_SETTER_TYPES
-  // [cfe] The type 'A' of the getter 'T2.field' is not assignable to the type 'C' of the setter 'T2.field'.
-    return getterField;
-  }
-
-  // Type C is not assignable to A
-  void set field(C arg) { setterField = arg; }
-}
-
-class T3 {
-  B getterField;
-  B get field {
-    return getterField;
-  }
-
-  // OK, A is assignable to B
-  void set field(A arg) {
-    getterField = arg;
-  }
-}
-
-main() {
-  T1 instance1 = new T1();
-  T2 instance2 = new T2();
-  T3 instance3 = new T3();
-
-  instance1.field = new B();
-  A resultA = instance1.field;
-  Expect.throwsTypeError(() => instance1.field = new A() as dynamic);
-  B resultB = instance1.field;
-
-  int result;
-  result = instance1.field.a();
-  Expect.equals(37, result);
-
-  // Type 'A' has no method named 'b'
-  instance1.field.b();
-  //              ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_METHOD
-  // [cfe] The method 'b' isn't defined for the class 'A'.
-
-  instance3.field = new B();
-  result = instance3.field.a();
-  Expect.equals(37, result);
-  result = instance3.field.b();
-  Expect.equals(38, result);
-}
diff --git a/tests/language_2/getter/setter_getters_setters_test.dart b/tests/language_2/getter/setter_getters_setters_test.dart
deleted file mode 100644
index 453ab5fd8d3..00000000000
--- a/tests/language_2/getter/setter_getters_setters_test.dart
+++ /dev/null
@@ -1,152 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class GettersSettersTest {
-  static int foo;
-
-  static testMain() {
-    A a = new A();
-    a.x = 2;
-    Expect.equals(2, a.x);
-    Expect.equals(2, a.x_);
-
-    // Test inheritance.
-    a = new B();
-    a.x = 4;
-    Expect.equals(4, a.x);
-    Expect.equals(4, a.x_);
-
-    // Test overriding.
-    C c = new C();
-    c.x = 8;
-    Expect.equals(8, c.x);
-    Expect.equals(0, c.x_);
-    Expect.equals(8, c.y_);
-
-    // Test keyed getters and setters.
-    a.x_ = 0;
-    Expect.equals(2, a[2]);
-    a[2] = 4;
-    Expect.equals(6, a[0]);
-
-    // Test assignment operators.
-    a.x_ = 0;
-    a[2] += 8;
-    Expect.equals(12, a[0]);
-
-    // Test calling a function that internally uses getters.
-    Expect.equals(true, a.isXPositive());
-
-    // Test static fields.
-    foo = 42;
-    Expect.equals(42, foo);
-    A.foo = 43;
-    Expect.equals(43, A.foo);
-
-    new D().test();
-
-    OverrideField of = new OverrideField();
-    Expect.equals(27, of.getX_());
-
-    ReferenceField rf = new ReferenceField();
-    rf.x_ = 1;
-    Expect.equals(1, rf.getIt());
-    rf.setIt(2);
-    Expect.equals(2, rf.x_);
-  }
-}
-
-class A {
-  int x_;
-  static int foo;
-
-  static get bar {
-    return foo;
-  }
-
-  static set bar(newValue) {
-    foo = newValue;
-  }
-
-  int get x {
-    return x_;
-  }
-
-  void set x(int value) {
-    x_ = value;
-  }
-
-  bool isXPositive() {
-    return x > 0;
-  }
-
-  int operator [](int index) {
-    return x_ + index;
-  }
-
-  void operator []=(int index, int value) {
-    x_ = index + value;
-  }
-
-  int getX_() {
-    return x_;
-  }
-}
-
-class B extends A {}
-
-class C extends A {
-  int y_;
-
-  C() : super() {
-    this.x_ = 0;
-  }
-
-  int get x {
-    return y_;
-  }
-
-  void set x(int value) {
-    y_ = value;
-  }
-}
-
-class D extends A {
-  var x2_;
-
-  set x(new_x) {
-    x2_ = new_x;
-  }
-
-  test() {
-    x = 87;
-    Expect.equals(87, x2_);
-    x = 42;
-    Expect.equals(42, x2_);
-  }
-}
-
-class OverrideField extends A {
-  int get x_ {
-    return 27;
-  }
-}
-
-class ReferenceField extends A {
-  setIt(a) {
-    super.x_ = a;
-  }
-
-  int getIt() {
-    return super.x_;
-  }
-}
-
-main() {
-  GettersSettersTest.testMain();
-}
diff --git a/tests/language_2/getter/setter_in_lib.dart b/tests/language_2/getter/setter_in_lib.dart
deleted file mode 100644
index f19c973d010..00000000000
--- a/tests/language_2/getter/setter_in_lib.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library GetterSetterInLib;
-
-get foo => 42;
-set foo(a) {}
-
-get bar => 77;
diff --git a/tests/language_2/getter/setter_in_lib2.dart b/tests/language_2/getter/setter_in_lib2.dart
deleted file mode 100644
index e3b587975c8..00000000000
--- a/tests/language_2/getter/setter_in_lib2.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library GetterSetterInLib2;
-
-set bar(a) {}
diff --git a/tests/language_2/getter/setter_in_lib3.dart b/tests/language_2/getter/setter_in_lib3.dart
deleted file mode 100644
index 3d1270e2d1f..00000000000
--- a/tests/language_2/getter/setter_in_lib3.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library GetterSetterInLib3;
-
-var _f = 33;
-
-set bar(a) {
-  _f = a;
-}
-
-get bar => _f;
diff --git a/tests/language_2/getter/setter_in_lib_test.dart b/tests/language_2/getter/setter_in_lib_test.dart
deleted file mode 100644
index 1ac76cbb717..00000000000
--- a/tests/language_2/getter/setter_in_lib_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library GetterSetterInLibTest;
-
-import "package:expect/expect.dart";
-import 'setter_in_lib.dart';
-import 'setter_in_lib2.dart';
-import 'setter_in_lib3.dart' as L3;
-
-main() {
-  Expect.equals(42, foo);
-  foo = 43;
-  Expect.equals(42, foo);
-
-  Expect.equals(77, bar);
-  bar = 43;
-  Expect.equals(77, bar);
-
-  Expect.equals(L3.bar, 33);
-  L3.bar = 44;
-  Expect.equals(L3.bar, 44);
-}
diff --git a/tests/language_2/getter/setter_interceptor_test.dart b/tests/language_2/getter/setter_interceptor_test.dart
deleted file mode 100644
index 1b165eb4e02..00000000000
--- a/tests/language_2/getter/setter_interceptor_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  int length = 0;
-}
-
-class B {
-  int length = 0;
-  foo(receiver) {
-    length++;
-    return receiver.length++;
-  }
-
-  bar(receiver) {
-    ++length;
-    return ++receiver.length;
-  }
-}
-
-main() {
-  var a = new A();
-  var b = new B();
-  var c = [1, 2, 3];
-
-  Expect.equals(3, b.foo(c));
-  Expect.equals(5, b.bar(c));
-  Expect.equals(5, c.length);
-
-  Expect.equals(0, b.foo(a));
-  Expect.equals(2, b.bar(a));
-  Expect.equals(2, a.length);
-
-  Expect.equals(4, b.length);
-}
diff --git a/tests/language_2/getter/setter_order_test.dart b/tests/language_2/getter/setter_order_test.dart
deleted file mode 100644
index 8f3ff6bb87c..00000000000
--- a/tests/language_2/getter/setter_order_test.dart
+++ /dev/null
@@ -1,102 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for the evaluation order of getters and setters.
-
-import 'package:expect/expect.dart';
-
-var trace;
-
-class X {
-  get b {
-    trace.add('get b');
-    return new X();
-  }
-
-  set c(value) {
-    trace.add('set c');
-  }
-
-  toString() {
-    trace.add('toString');
-    return 'X';
-  }
-
-  get c {
-    trace.add('get c');
-    return 42;
-  }
-
-  get d {
-    trace.add('get d');
-    return new X();
-  }
-
-  operator [](index) {
-    trace.add('index');
-    return 42;
-  }
-
-  operator []=(index, value) {
-    trace.add('indexSet');
-  }
-}
-
-main() {
-  var x = new X();
-
-  trace = [];
-  x.b.c = '$x';
-  Expect.listEquals(['get b', 'toString', 'set c'], trace);
-
-  trace = [];
-  x.b.c += '$x'.hashCode;
-  Expect.listEquals(['get b', 'get c', 'toString', 'set c'], trace);
-
-  trace = [];
-  x.b.c++;
-  Expect.listEquals(['get b', 'get c', 'set c'], trace);
-
-  trace = [];
-  x.b.d[42] = '$x';
-  Expect.listEquals(['get b', 'get d', 'toString', 'indexSet'], trace);
-
-  trace = [];
-  x.b.d[42] += '$x'.hashCode;
-  Expect.listEquals(['get b', 'get d', 'index', 'toString', 'indexSet'], trace);
-
-  trace = [];
-  x.b.d[42]++;
-  Expect.listEquals(['get b', 'get d', 'index', 'indexSet'], trace);
-
-  trace = [];
-  ++x.b.d[42];
-  Expect.listEquals(['get b', 'get d', 'index', 'indexSet'], trace);
-
-  trace = [];
-  x.b.d[x.c] *= '$x'.hashCode;
-  Expect.listEquals(
-      ['get b', 'get d', 'get c', 'index', 'toString', 'indexSet'], trace);
-
-  trace = [];
-  x.b.c = x.d.c = '$x';
-  Expect.listEquals([
-    'get b',
-    'get d',
-    'toString',
-    'set c',
-    'set c',
-  ], trace);
-
-  trace = [];
-  x.b.c = x.d[42] *= '$x'.hashCode;
-  Expect.listEquals(
-      ['get b', 'get d', 'index', 'toString', 'indexSet', 'set c'], trace);
-
-  trace = [];
-  x.b.c = ++x.d.c;
-  Expect.listEquals(['get b', 'get d', 'get c', 'set c', 'set c'], trace);
-}
diff --git a/tests/language_2/getter/setter_type2_test.dart b/tests/language_2/getter/setter_type2_test.dart
deleted file mode 100644
index 2eb953ae13b..00000000000
--- a/tests/language_2/getter/setter_type2_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Getters and setters can have different types, and it is not a warning if the
-// two types are assignable.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-int bar = 499;
-
-int get foo => bar;
-
-void set foo(str) {
-  bar = str.length;
-}
-
-main() {
-  int x = foo;
-  Expect.equals(499, x);
-  foo = "1234";
-  int y = foo;
-  Expect.equals(4, y);
-}
diff --git a/tests/language_2/getter/setter_type3_test.dart b/tests/language_2/getter/setter_type3_test.dart
deleted file mode 100644
index 0637d171d7c..00000000000
--- a/tests/language_2/getter/setter_type3_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Getters and setters can have different types, and it is not a warning if the
-// two types are assignable.
-
-// @dart = 2.9
-
-// [NNBD non-migrated]: NNBD requires a getter's return type to be a subtype of
-// the corresponding setter's parameter type. So this test would be a static
-// error, and hence there is no corresponding NNBD version.
-import "package:expect/expect.dart";
-
-int bar = 499;
-
-get foo => bar;
-
-void set foo(String str) {
-  bar = str.length;
-}
-
-main() {
-  int x = foo;
-  Expect.equals(499, x);
-  foo = "1234";
-  int y = foo;
-  Expect.equals(4, y);
-}
diff --git a/tests/language_2/getter/setter_type_runtime_test.dart b/tests/language_2/getter/setter_type_runtime_test.dart
deleted file mode 100644
index 4348bff648b..00000000000
--- a/tests/language_2/getter/setter_type_runtime_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Getters and setters can have different types, but it is a warning if the
-// two types are not assignable.
-
-import "package:expect/expect.dart";
-
-int bar = 499;
-
-
-get foo => bar;
-
-void set foo(
-
-    str) {
-  bar = str.length;
-}
-
-main() {
-  int x = foo;
-  Expect.equals(499, x);
-  foo = "1234";
-  int y = foo;
-  Expect.equals(4, y);
-}
diff --git a/tests/language_2/getter/setter_type_test.dart b/tests/language_2/getter/setter_type_test.dart
deleted file mode 100644
index 118366b7583..00000000000
--- a/tests/language_2/getter/setter_type_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Getters and setters can have different types, but it is a warning if the
-// two types are not assignable.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-int bar = 499;
-
-int get foo => bar;
-//      ^^^
-// [analyzer] COMPILE_TIME_ERROR.GETTER_NOT_ASSIGNABLE_SETTER_TYPES
-// [cfe] The type 'int' of the getter 'foo' is not assignable to the type 'String' of the setter 'foo'.
-
-void set foo(String str) {
-  bar = str.length;
-}
-
-main() {
-  int x = foo;
-  Expect.equals(499, x);
-  foo = "1234";
-  int y = foo;
-  Expect.equals(4, y);
-}
diff --git a/tests/language_2/getter/syntax_get_set_syntax_test.dart b/tests/language_2/getter/syntax_get_set_syntax_test.dart
deleted file mode 100644
index 31bcf4e8058..00000000000
--- a/tests/language_2/getter/syntax_get_set_syntax_test.dart
+++ /dev/null
@@ -1,210 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-var get;
-var get a;
-// [error line 8, column 1, length 3]
-// [analyzer] SYNTACTIC_ERROR.VAR_RETURN_TYPE
-// [cfe] The return type can't be 'var'.
-//       ^
-// [analyzer] SYNTACTIC_ERROR.MISSING_FUNCTION_BODY
-// [cfe] Expected a function body or '=>'.
-var get b, c;
-// [error line 15, column 1, length 3]
-// [analyzer] SYNTACTIC_ERROR.VAR_RETURN_TYPE
-// [cfe] The return type can't be 'var'.
-//       ^
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_EXECUTABLE
-// [analyzer] SYNTACTIC_ERROR.MISSING_FUNCTION_BODY
-// [cfe] Expected '{' before this.
-// [cfe] Expected a declaration, but got ','.
-// [cfe] Expected a function body, but got ','.
-// [cfe] Expected a function body, but got '{'.
-//         ^
-// [analyzer] SYNTACTIC_ERROR.MISSING_CONST_FINAL_VAR_OR_TYPE
-// [cfe] Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
-
-var set;
-var set d;
-// [error line 31, column 1, length 3]
-// [analyzer] SYNTACTIC_ERROR.VAR_RETURN_TYPE
-// [cfe] The return type can't be 'var'.
-//      ^
-// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_SETTER
-// [analyzer] SYNTACTIC_ERROR.MISSING_FUNCTION_PARAMETERS
-// [cfe] A function declaration needs an explicit list of parameters.
-//       ^
-// [analyzer] SYNTACTIC_ERROR.MISSING_FUNCTION_BODY
-// [cfe] A setter should have exactly one formal parameter.
-// [cfe] Expected a function body or '=>'.
-var set e, f;
-// [error line 43, column 1, length 3]
-// [analyzer] SYNTACTIC_ERROR.VAR_RETURN_TYPE
-// [cfe] The return type can't be 'var'.
-//      ^
-// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_SETTER
-// [analyzer] SYNTACTIC_ERROR.MISSING_FUNCTION_PARAMETERS
-// [cfe] A function declaration needs an explicit list of parameters.
-//       ^
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_EXECUTABLE
-// [analyzer] SYNTACTIC_ERROR.MISSING_FUNCTION_BODY
-// [cfe] A setter should have exactly one formal parameter.
-// [cfe] Expected '{' before this.
-// [cfe] Expected a declaration, but got ','.
-//         ^
-// [analyzer] SYNTACTIC_ERROR.MISSING_CONST_FINAL_VAR_OR_TYPE
-// [cfe] Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
-
-class C0 {
-//    ^
-// [cfe] The non-abstract class 'C0' is missing implementations for these members:
-  var get;
-  var get a;
-//^^^
-// [analyzer] SYNTACTIC_ERROR.VAR_RETURN_TYPE
-// [cfe] The return type can't be 'var'.
-//    ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONCRETE_CLASS_WITH_ABSTRACT_MEMBER
-  var get b, c;
-//^^^
-// [analyzer] SYNTACTIC_ERROR.VAR_RETURN_TYPE
-// [cfe] The return type can't be 'var'.
-//         ^
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_CLASS_MEMBER
-// [analyzer] SYNTACTIC_ERROR.MISSING_FUNCTION_BODY
-// [cfe] Expected '{' before this.
-// [cfe] Expected a class member, but got ','.
-//           ^
-// [analyzer] SYNTACTIC_ERROR.MISSING_CONST_FINAL_VAR_OR_TYPE
-// [cfe] Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
-
-  var set;
-  var set d;
-//^^^
-// [analyzer] SYNTACTIC_ERROR.VAR_RETURN_TYPE
-// [cfe] The return type can't be 'var'.
-//    ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONCRETE_CLASS_WITH_ABSTRACT_MEMBER
-//        ^
-// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_SETTER
-// [analyzer] SYNTACTIC_ERROR.MISSING_METHOD_PARAMETERS
-// [cfe] A method declaration needs an explicit list of parameters.
-//         ^
-// [cfe] A setter should have exactly one formal parameter.
-  var set e, f;
-//^^^
-// [analyzer] SYNTACTIC_ERROR.VAR_RETURN_TYPE
-// [cfe] The return type can't be 'var'.
-//        ^
-// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_SETTER
-// [analyzer] SYNTACTIC_ERROR.MISSING_METHOD_PARAMETERS
-// [cfe] A method declaration needs an explicit list of parameters.
-//         ^
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_CLASS_MEMBER
-// [analyzer] SYNTACTIC_ERROR.MISSING_FUNCTION_BODY
-// [cfe] A setter should have exactly one formal parameter.
-// [cfe] Expected '{' before this.
-// [cfe] Expected a class member, but got ','.
-//           ^
-// [analyzer] SYNTACTIC_ERROR.MISSING_CONST_FINAL_VAR_OR_TYPE
-// [cfe] Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
-}
-
-class C1 {
-  List get;
-  List get a => null;
-  List get b, c;
-  //        ^
-  // [analyzer] SYNTACTIC_ERROR.EXPECTED_CLASS_MEMBER
-  // [analyzer] SYNTACTIC_ERROR.MISSING_FUNCTION_BODY
-  // [cfe] Expected '{' before this.
-  // [cfe] Expected a class member, but got ','.
-  //          ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_CONST_FINAL_VAR_OR_TYPE
-  // [cfe] Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
-
-  List set;
-  List set d;
-//^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_VOID_RETURN_FOR_SETTER
-//^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONCRETE_CLASS_WITH_ABSTRACT_MEMBER
-// [cfe] The return type of the setter must be 'void' or absent.
-//         ^
-// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_SETTER
-// [analyzer] SYNTACTIC_ERROR.MISSING_METHOD_PARAMETERS
-// [cfe] A method declaration needs an explicit list of parameters.
-//          ^
-// [cfe] A setter should have exactly one formal parameter.
-  List set e, f;
-//^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_VOID_RETURN_FOR_SETTER
-// [cfe] The return type of the setter must be 'void' or absent.
-//         ^
-// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_SETTER
-// [analyzer] SYNTACTIC_ERROR.MISSING_METHOD_PARAMETERS
-// [cfe] A method declaration needs an explicit list of parameters.
-//          ^
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_CLASS_MEMBER
-// [analyzer] SYNTACTIC_ERROR.MISSING_FUNCTION_BODY
-// [cfe] A setter should have exactly one formal parameter.
-// [cfe] Expected '{' before this.
-// [cfe] Expected a class member, but got ','.
-//            ^
-// [analyzer] SYNTACTIC_ERROR.MISSING_CONST_FINAL_VAR_OR_TYPE
-// [cfe] Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
-}
-
-class C2 {
-  List<int> get;
-  List<int> get a => null;
-  List<int> get b, c;
-  //             ^
-  // [analyzer] SYNTACTIC_ERROR.EXPECTED_CLASS_MEMBER
-  // [analyzer] SYNTACTIC_ERROR.MISSING_FUNCTION_BODY
-  // [cfe] Expected '{' before this.
-  // [cfe] Expected a class member, but got ','.
-  //               ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_CONST_FINAL_VAR_OR_TYPE
-  // [cfe] Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
-
-  List<int> set;
-  List<int> set d;
-//^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_VOID_RETURN_FOR_SETTER
-//^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONCRETE_CLASS_WITH_ABSTRACT_MEMBER
-// [cfe] The return type of the setter must be 'void' or absent.
-//              ^
-// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_SETTER
-// [analyzer] SYNTACTIC_ERROR.MISSING_METHOD_PARAMETERS
-// [cfe] A method declaration needs an explicit list of parameters.
-//               ^
-// [cfe] A setter should have exactly one formal parameter.
-  List<int> set e, f;
-//^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_VOID_RETURN_FOR_SETTER
-// [cfe] The return type of the setter must be 'void' or absent.
-//              ^
-// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_SETTER
-// [analyzer] SYNTACTIC_ERROR.MISSING_METHOD_PARAMETERS
-// [cfe] A method declaration needs an explicit list of parameters.
-//               ^
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_CLASS_MEMBER
-// [analyzer] SYNTACTIC_ERROR.MISSING_FUNCTION_BODY
-// [cfe] A setter should have exactly one formal parameter.
-// [cfe] Expected '{' before this.
-// [cfe] Expected a class member, but got ','.
-//                 ^
-// [analyzer] SYNTACTIC_ERROR.MISSING_CONST_FINAL_VAR_OR_TYPE
-// [cfe] Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
-}
-
-main() {
-  new C0();
-  new C1();
-  new C2();
-}
diff --git a/tests/language_2/getter/syntax_runtime_1_test.dart b/tests/language_2/getter/syntax_runtime_1_test.dart
deleted file mode 100644
index 0fd7fcc9d74..00000000000
--- a/tests/language_2/getter/syntax_runtime_1_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-var get;
-
-
-
-var set;
-
-
-
-class C0 {
-  var get;
-
-
-
-  var set;
-
-
-}
-
-class C1 {
-  List get;
-  List get a => null;
-
-
-  List set;
-
-
-}
-
-class C2 {
-  List<int> get;
-  List<int> get a => null;
-
-
-  List<int> set;
-
-
-}
-
-main() {
-  new C0();
-  new C1();
-  new C2();
-}
diff --git a/tests/language_2/getter/syntax_runtime_test.dart b/tests/language_2/getter/syntax_runtime_test.dart
deleted file mode 100644
index abd575ce382..00000000000
--- a/tests/language_2/getter/syntax_runtime_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-
-
-
-
-
-
-
-
-class C0 {
-
-
-
-
-
-
-
-}
-
-class C1 {
-
-
-
-
-
-
-
-}
-
-class C2 {
-
-
-
-
-
-
-
-}
-
-main() {
-  new C0();
-  new C1();
-  new C2();
-}
diff --git a/tests/language_2/getter/unbound_test.dart b/tests/language_2/getter/unbound_test.dart
deleted file mode 100644
index 18e77cc570f..00000000000
--- a/tests/language_2/getter/unbound_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Verify that an unbound getter is properly resolved at runtime.
-
-// @dart = 2.9
-
-class A {
-  const A();
-  foo() {
-    return y;
-    //     ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-    // [cfe] The getter 'y' isn't defined for the class 'A'.
-  }
-}
-
-main() {
-  new A().foo();
-}
diff --git a/tests/language_2/identifier/built_in_identifier_test.dart b/tests/language_2/identifier/built_in_identifier_test.dart
deleted file mode 100644
index a19d8934fea..00000000000
--- a/tests/language_2/identifier/built_in_identifier_test.dart
+++ /dev/null
@@ -1,120 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check that we can use pseudo keywords as names in function level code.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class PseudoKWTest {
-  static testMain() {
-    // This is a list of built-in identifiers from the Dart spec.
-    // It sanity checks that these pseudo-keywords are legal identifiers.
-
-    var abstract = 0; //# 01: ok
-    var as = 0;
-    var dynamic = 0;
-    var export = 0;
-    var external = 0; //# 01: ok
-    var factory = 0;
-    var get = 0;
-    var interface = 0;
-    var implements = 0;
-    var import = 0;
-    var library = 0;
-    var mixin = 0;
-    var operator = 0;
-    var part = 0;
-    var set = 0;
-    var static = 0; //# 01: ok
-    var typedef = 0;
-
-    // "native" is a per-implementation extension that is not a part of the
-    // Dart language.  While it is not an official built-in identifier, it
-    // is useful to ensure that it remains a legal identifier.
-    var native = 0;
-
-    // The code below adds a few additional variants of usage without any
-    // attempt at complete coverage.
-    {
-      void factory(set) {
-        return; //# 01: ok
-      }
-    }
-
-    get:
-    while (import > 0) {
-      break get;
-    }
-
-    return
-        static + //# 01: ok
-        library * operator;
-  }
-}
-
-typedef(x) => "typedef $x"; //# 01: ok
-
-static(abstract) { //# 01: ok
-  return abstract == true; //# 01: ok
-} //# 01: ok
-
-class A {
-  var typedef = 0;
-  final operator = "smooth";
-
-  set(x) {
-    typedef = x;
-  }
-
-  get() => typedef - 5;
-
-  static static() { //# 01: ok
-    return 1; //# 01: ok
-  } //# 01: ok
-  static check() {
-    var o = new A();
-    o.set(55);
-    Expect.equals(50, o.get());
-    static(); //# 01: ok
-  }
-}
-
-class B {
-  var set = 100;
-  get get => set;
-  set get(get) => set = 2 * get.get;
-
-  static() { //# 01: ok
-    var set = new B(); //# 01: ok
-    set.get = set; //# 01: ok
-    Expect.equals(200, set.get); //# 01: ok
-  } //# 01: ok
-  int operator() {
-    return 1;
-  }
-}
-
-class C {
-  static int operator = (5);
-  static var get;
-  static get set => 111;
-  static set set(set) {}
-}
-
-main() {
-  PseudoKWTest.testMain();
-  A.check();
-  new B().static(); //# 01: ok
-  Expect.equals(1, new B().operator());
-  Expect.equals(1, A.static()); //# 01: ok
-  typedef("T"); //# 01: ok
-  Expect.equals("typedef T", typedef("T")); //# 01: ok
-  static("true"); //# 01: ok
-  Expect.equals(false, static("true")); //# 01: ok
-  Expect.equals(5, C.operator);
-  Expect.equals(null, C.get);
-  C.set = 0;
-  Expect.equals(111, C.set);
-}
diff --git a/tests/language_2/identifier/built_in_illegal_runtime_test.dart b/tests/language_2/identifier/built_in_illegal_runtime_test.dart
deleted file mode 100644
index 667aa87fdc1..00000000000
--- a/tests/language_2/identifier/built_in_illegal_runtime_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check that we cannot use a pseudo keyword at the class level code.
-
-// Pseudo keywords are not allowed to be used as class names.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-main() {}
diff --git a/tests/language_2/identifier/built_in_illegal_test.dart b/tests/language_2/identifier/built_in_illegal_test.dart
deleted file mode 100644
index 652199e8aeb..00000000000
--- a/tests/language_2/identifier/built_in_illegal_test.dart
+++ /dev/null
@@ -1,78 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check that we cannot use a pseudo keyword at the class level code.
-
-// @dart = 2.9
-
-// Pseudo keywords are not allowed to be used as class names.
-class abstract { }
-//    ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.BUILT_IN_IDENTIFIER_IN_DECLARATION
-// [cfe] Can't use 'abstract' as a name here.
-class as { }
-//    ^^
-// [analyzer] COMPILE_TIME_ERROR.BUILT_IN_IDENTIFIER_IN_DECLARATION
-// [cfe] Can't use 'as' as a name here.
-class dynamic { }
-//    ^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.BUILT_IN_IDENTIFIER_IN_DECLARATION
-// [cfe] Can't use 'dynamic' as a name here.
-class export { }
-//    ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.BUILT_IN_IDENTIFIER_IN_DECLARATION
-// [cfe] Can't use 'export' as a name here.
-class external { }
-//    ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.BUILT_IN_IDENTIFIER_IN_DECLARATION
-// [cfe] Can't use 'external' as a name here.
-class factory { }
-//    ^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.BUILT_IN_IDENTIFIER_IN_DECLARATION
-// [cfe] Can't use 'factory' as a name here.
-class get { }
-//    ^^^
-// [analyzer] COMPILE_TIME_ERROR.BUILT_IN_IDENTIFIER_IN_DECLARATION
-// [cfe] Can't use 'get' as a name here.
-class interface { }
-//    ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.BUILT_IN_IDENTIFIER_IN_DECLARATION
-// [cfe] Can't use 'interface' as a name here.
-class implements { }
-//    ^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.BUILT_IN_IDENTIFIER_IN_DECLARATION
-// [cfe] Can't use 'implements' as a name here.
-class import { }
-//    ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.BUILT_IN_IDENTIFIER_IN_DECLARATION
-// [cfe] Can't use 'import' as a name here.
-class mixin { }
-//    ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.BUILT_IN_IDENTIFIER_IN_DECLARATION
-// [cfe] Can't use 'mixin' as a name here.
-class library { }
-//    ^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.BUILT_IN_IDENTIFIER_IN_DECLARATION
-// [cfe] Can't use 'library' as a name here.
-class operator { }
-//    ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.BUILT_IN_IDENTIFIER_IN_DECLARATION
-// [cfe] Can't use 'operator' as a name here.
-class part { }
-//    ^^^^
-// [analyzer] COMPILE_TIME_ERROR.BUILT_IN_IDENTIFIER_IN_DECLARATION
-// [cfe] Can't use 'part' as a name here.
-class set { }
-//    ^^^
-// [analyzer] COMPILE_TIME_ERROR.BUILT_IN_IDENTIFIER_IN_DECLARATION
-// [cfe] Can't use 'set' as a name here.
-class static { }
-//    ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.BUILT_IN_IDENTIFIER_IN_DECLARATION
-// [cfe] Can't use 'static' as a name here.
-class typedef { }
-//    ^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.BUILT_IN_IDENTIFIER_IN_DECLARATION
-// [cfe] Can't use 'typedef' as a name here.
-
-main() {}
diff --git a/tests/language_2/identifier/built_in_not_prefix_test.dart b/tests/language_2/identifier/built_in_not_prefix_test.dart
deleted file mode 100644
index d6f22b6cda4..00000000000
--- a/tests/language_2/identifier/built_in_not_prefix_test.dart
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// From The Dart Programming Language Specification, section 16.33
-// "Identifier Reference":
-//
-// "A built-in identifier is one of the identifiers produced by the
-// production BUILT_IN_IDENTIFIER. It is a compile-time error if a
-// built-in identifier is used as the declared name of a prefix, class,
-// type parameter or type alias. It is a compile-time error to use a
-// built-in identifier other than dynamic in a type annotation or type
-// parameter."
-//
-// Observation: it is illegal to use a built-in identifier as a library
-// prefix.
-
-// Dart test for using a built-in identifier as a library prefix.
-
-import "dart:core" // Fine unless imported with a built-in identifier as prefix.
-deferred as abstract //    //# deferred-abstract: compile-time error
-deferred as as //          //# deferred-as: compile-time error
-deferred as covariant //   //# deferred-covariant: compile-time error
-deferred as deferred //    //# deferred-deferred: compile-time error
-deferred as dynamic //     //# deferred-dynamic: compile-time error
-deferred as export //      //# deferred-export: compile-time error
-deferred as external //    //# deferred-external: compile-time error
-deferred as factory //     //# deferred-factory: compile-time error
-deferred as get //         //# deferred-get: compile-time error
-deferred as implements //  //# deferred-implements: compile-time error
-deferred as import //      //# deferred-import: compile-time error
-deferred as interface //   //# deferred-interface: compile-time error
-deferred as library //     //# deferred-library: compile-time error
-deferred as mixin //       //# deferred-mixin: compile-time error
-deferred as operator //    //# deferred-operator: compile-time error
-deferred as part //        //# deferred-part: compile-time error
-deferred as set //         //# deferred-set: compile-time error
-deferred as static //      //# deferred-static: compile-time error
-deferred as typedef //     //# deferred-typedef: compile-time error
-as abstract //             //# abstract: compile-time error
-as as //                   //# as: compile-time error
-as covariant //            //# covariant: compile-time error
-as deferred //             //# deferred: compile-time error
-as dynamic //              //# dynamic: compile-time error
-as export //               //# export: compile-time error
-as external //             //# external: compile-time error
-as factory //              //# factory: compile-time error
-as get //                  //# get: compile-time error
-as implements //           //# implements: compile-time error
-as import //               //# import: compile-time error
-as interface //            //# interface: compile-time error
-as library //              //# library: compile-time error
-as mixin //                //# mixin: compile-time error
-as operator //             //# operator: compile-time error
-as part //                 //# part: compile-time error
-as set //                  //# set: compile-time error
-as static //               //# static: compile-time error
-as typedef //              //# typedef: compile-time error
-;
-
-main() {
-}
diff --git a/tests/language_2/identifier/built_in_prefix_library_async.dart b/tests/language_2/identifier/built_in_prefix_library_async.dart
deleted file mode 100644
index 88994e73daf..00000000000
--- a/tests/language_2/identifier/built_in_prefix_library_async.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library async;
-
-class A {}
-
-class B<T> {}
-
-class C<T, S> {}
diff --git a/tests/language_2/identifier/built_in_prefix_library_await.dart b/tests/language_2/identifier/built_in_prefix_library_await.dart
deleted file mode 100644
index 9508b845ec6..00000000000
--- a/tests/language_2/identifier/built_in_prefix_library_await.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library await;
-
-class A {}
-
-class B<T> {}
-
-class C<T, S> {}
diff --git a/tests/language_2/identifier/built_in_prefix_library_hide.dart b/tests/language_2/identifier/built_in_prefix_library_hide.dart
deleted file mode 100644
index e91272c2a67..00000000000
--- a/tests/language_2/identifier/built_in_prefix_library_hide.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library hide;
-
-class A {}
-
-class B<T> {}
-
-class C<T, S> {}
diff --git a/tests/language_2/identifier/built_in_prefix_library_library.dart b/tests/language_2/identifier/built_in_prefix_library_library.dart
deleted file mode 100644
index 3a693012ecb..00000000000
--- a/tests/language_2/identifier/built_in_prefix_library_library.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library library;
-
-class A {}
-
-class B<T> {}
-
-class C<T, S> {}
diff --git a/tests/language_2/identifier/built_in_prefix_library_of.dart b/tests/language_2/identifier/built_in_prefix_library_of.dart
deleted file mode 100644
index fb061cad800..00000000000
--- a/tests/language_2/identifier/built_in_prefix_library_of.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library of;
-
-class A {}
-
-class B<T> {}
-
-class C<T, S> {}
diff --git a/tests/language_2/identifier/built_in_prefix_library_on.dart b/tests/language_2/identifier/built_in_prefix_library_on.dart
deleted file mode 100644
index 48658f50bcf..00000000000
--- a/tests/language_2/identifier/built_in_prefix_library_on.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library on;
-
-class A {}
-
-class B<T> {}
-
-class C<T, S> {}
diff --git a/tests/language_2/identifier/built_in_prefix_library_show.dart b/tests/language_2/identifier/built_in_prefix_library_show.dart
deleted file mode 100644
index 54bcc77bbab..00000000000
--- a/tests/language_2/identifier/built_in_prefix_library_show.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library show;
-
-class A {}
-
-class B<T> {}
-
-class C<T, S> {}
diff --git a/tests/language_2/identifier/built_in_prefix_library_sync.dart b/tests/language_2/identifier/built_in_prefix_library_sync.dart
deleted file mode 100644
index 004c3fb89dc..00000000000
--- a/tests/language_2/identifier/built_in_prefix_library_sync.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library sync;
-
-class A {}
-
-class B<T> {}
-
-class C<T, S> {}
diff --git a/tests/language_2/identifier/built_in_prefix_library_yield.dart b/tests/language_2/identifier/built_in_prefix_library_yield.dart
deleted file mode 100644
index f3193be7d16..00000000000
--- a/tests/language_2/identifier/built_in_prefix_library_yield.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library yield;
-
-class A {}
-
-class B<T> {}
-
-class C<T, S> {}
diff --git a/tests/language_2/identifier/built_in_type_annotation_test.dart b/tests/language_2/identifier/built_in_type_annotation_test.dart
deleted file mode 100644
index 4ef7b53f762..00000000000
--- a/tests/language_2/identifier/built_in_type_annotation_test.dart
+++ /dev/null
@@ -1,131 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// From The Dart Programming Language Specification, section 16.33
-// "Identifier Reference":
-//
-// "A built-in identifier is one of the identifiers produced by the
-// production BUILT_IN_IDENTIFIER. It is a compile-time error if a
-// built-in identifier is used as the declared name of a prefix, class,
-// type parameter or type alias. It is a compile-time error to use a
-// built-in identifier other than dynamic in a type annotation or type
-// parameter."
-//
-// Observation: it is illegal to use a built-in identifier other than
-// `dynamic` in a type annotation. A type annotation is not fully defined
-// in the specification, so we assume this means that the grammar
-// production "type" cannot be a built-in identifier, and it cannot contain
-// a built-in identifier at a location where it must denote a type.
-//
-// Note that we have several ways to use built-in identifiers other than
-// `dynamic` in other locations in a type, e.g., `Function(int set)`.
-
-final // optional type before variable must not be a built-in identifier.
-abstract //              //# abstract: syntax error
-as //                    //# as: syntax error
-covariant //             //# covariant: syntax error
-deferred //              //# deferred: syntax error
-dynamic //               //# dynamic: ok
-export //                //# export: syntax error
-external //              //# external: syntax error
-factory //               //# factory: syntax error
-get //                   //# get: syntax error
-implements //            //# implements: syntax error
-import //                //# import: syntax error
-interface //             //# interface: syntax error
-library //               //# library: syntax error
-mixin //                 //# mixin: syntax error
-operator //              //# operator: syntax error
-part //                  //# part: syntax error
-set //                   //# set: syntax error
-static //                //# static: syntax error
-typedef //               //# typedef: syntax error
-
-abstract<int> //         //# abstract-gen: syntax error
-as<int> //               //# as-gen: syntax error
-covariant<int> //        //# covariant-gen: syntax error
-deferred<int> //         //# deferred-gen: syntax error
-dynamic<int> //          //# dynamic-gen: compile-time error
-export<int> //           //# export-gen: syntax error
-external<int> //         //# external-gen: syntax error
-factory<int> //          //# factory-gen: syntax error
-get<int> //              //# get-gen: syntax error
-implements<int> //       //# implements-gen: syntax error
-import<int> //           //# import-gen: syntax error
-interface<int> //        //# interface-gen: syntax error
-library<int> //          //# library-gen: syntax error
-mixin<int> //            //# mixin-gen: syntax error
-operator<int> //         //# operator-gen: syntax error
-part<int> //             //# part-gen: syntax error
-set<int> //              //# set-gen: syntax error
-static<int> //           //# static-gen: syntax error
-typedef<int> //          //# typedef-gen: syntax error
-
-List<abstract> //        //# abstract-list: syntax error
-List<as> //              //# as-list: syntax error
-List<covariant> //       //# covariant-list: syntax error
-List<deferred> //        //# deferred-list: syntax error
-List<dynamic> //         //# dynamic-list: ok
-List<export> //          //# export-list: syntax error
-List<external> //        //# external-list: syntax error
-List<factory> //         //# factory-list: syntax error
-List<get> //             //# get-list: syntax error
-List<implements> //      //# implements-list: syntax error
-List<import> //          //# import-list: syntax error
-List<interface> //       //# interface-list: syntax error
-List<library> //         //# library-list: syntax error
-List<mixin> //           //# mixin-list: syntax error
-List<operator> //        //# operator-list: syntax error
-List<part> //            //# part-list: syntax error
-List<set> //             //# set-list: syntax error
-List<static> //          //# static-list: syntax error
-List<typedef> //         //# typedef-list: syntax error
-
-Function(abstract) //    //# abstract-funarg: syntax error
-Function(as) //          //# as-funarg: syntax error
-Function(covariant) //   //# covariant-funarg: syntax error
-Function(deferred) //    //# deferred-funarg: syntax error
-Function(dynamic) //     //# dynamic-funarg: ok
-Function(export) //      //# export-funarg: syntax error
-Function(external) //    //# external-funarg: syntax error
-Function(factory) //     //# factory-funarg: syntax error
-Function(get) //         //# get-funarg: syntax error
-Function(implements) //  //# implements-funarg: syntax error
-Function(import) //      //# import-funarg: syntax error
-Function(interface) //   //# interface-funarg: syntax error
-Function(library) //     //# library-funarg: syntax error
-Function(mixin) //       //# mixin-funarg: syntax error
-Function(operator) //    //# operator-funarg: syntax error
-Function(part) //        //# part-funarg: syntax error
-Function(set) //         //# set-funarg: syntax error
-Function(static) //      //# static-funarg: syntax error
-Function(typedef) //     //# typedef-funarg: syntax error
-
-abstract Function() //   //# abstract-funret: syntax error
-as Function() //         //# as-funret: syntax error
-covariant Function() //  //# covariant-funret: syntax error
-deferred Function() //   //# deferred-funret: syntax error
-dynamic Function() //    //# dynamic-funret: ok
-export Function() //     //# export-funret: syntax error
-external Function() //   //# external-funret: syntax error
-factory Function() //    //# factory-funret: syntax error
-get Function() //        //# get-funret: syntax error
-implements Function() // //# implements-funret: syntax error
-import Function() //     //# import-funret: syntax error
-interface Function() //  //# interface-funret: syntax error
-library Function() //    //# library-funret: syntax error
-mixin Function() //      //# mixin-funret: syntax error
-operator Function() //   //# operator-funret: syntax error
-part Function() //       //# part-funret: syntax error
-set Function() //        //# set-funret: syntax error
-static Function() //     //# static-funret: syntax error
-typedef Function() //    //# typedef-funret: syntax error
-
-x = null;
-
-main() {
-  x.toString();
-}
diff --git a/tests/language_2/identifier/known_prefix_error_runtime_test.dart b/tests/language_2/identifier/known_prefix_error_runtime_test.dart
deleted file mode 100644
index f83e405da7a..00000000000
--- a/tests/language_2/identifier/known_prefix_error_runtime_test.dart
+++ /dev/null
@@ -1,83 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that identifiers which are used explicitly in the grammar but are
-// not built-in identifiers can be used as library prefixes.
-
-// The identifiers listed below are mentioned in the grammar, but none of
-// them is a reserved word or a built-in identifier. Such an identifier can
-// be used as a library prefix; this test puts such prefixes in wrong
-// locations to verify that this is being handled. Here are the 'known'
-// identifiers: `async`, `await`, `hide`, `of`, `on`, `show`, `sync`, `yield`.
-
-import "package:expect/expect.dart";
-import 'built_in_prefix_library_async.dart' as async;
-import 'built_in_prefix_library_await.dart' as await;
-import 'built_in_prefix_library_hide.dart' as hide;
-import 'built_in_prefix_library_of.dart' as of;
-import 'built_in_prefix_library_on.dart' as on;
-import 'built_in_prefix_library_show.dart' as show;
-import 'built_in_prefix_library_sync.dart' as sync;
-import 'built_in_prefix_library_yield.dart' as yield;
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-main() {
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/identifier/known_prefix_error_test.dart b/tests/language_2/identifier/known_prefix_error_test.dart
deleted file mode 100644
index e4bd56f37a8..00000000000
--- a/tests/language_2/identifier/known_prefix_error_test.dart
+++ /dev/null
@@ -1,156 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that identifiers which are used explicitly in the grammar but are
-// not built-in identifiers can be used as library prefixes.
-
-// The identifiers listed below are mentioned in the grammar, but none of
-// them is a reserved word or a built-in identifier. Such an identifier can
-// be used as a library prefix; this test puts such prefixes in wrong
-// locations to verify that this is being handled. Here are the 'known'
-// identifiers: `async`, `await`, `hide`, `of`, `on`, `show`, `sync`, `yield`.
-
-import "package:expect/expect.dart";
-import 'built_in_prefix_library_async.dart' as async;
-import 'built_in_prefix_library_await.dart' as await;
-import 'built_in_prefix_library_hide.dart' as hide;
-import 'built_in_prefix_library_library.dart' as library;
-//                                               ^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.BUILT_IN_IDENTIFIER_IN_DECLARATION
-// [cfe] Can't use 'library' as a name here.
-import 'built_in_prefix_library_of.dart' as of;
-import 'built_in_prefix_library_on.dart' as on;
-import 'built_in_prefix_library_show.dart' as show;
-import 'built_in_prefix_library_sync.dart' as sync;
-import 'built_in_prefix_library_yield.dart' as yield;
-
-async<dynamic> _async = new async.A();
-// [error line 30, column 1, length 5]
-// [analyzer] COMPILE_TIME_ERROR.NOT_A_TYPE
-// [cfe] 'async' isn't a type.
-await<dynamic> _await = new await.A();
-// [error line 34, column 1, length 5]
-// [analyzer] COMPILE_TIME_ERROR.NOT_A_TYPE
-// [cfe] 'await' isn't a type.
-hide<dynamic> _hide = new hide.A();
-// [error line 38, column 1, length 4]
-// [analyzer] COMPILE_TIME_ERROR.NOT_A_TYPE
-// [cfe] 'hide' isn't a type.
-of<dynamic> _of = new of.A();
-// [error line 42, column 1, length 2]
-// [analyzer] COMPILE_TIME_ERROR.NOT_A_TYPE
-// [cfe] 'of' isn't a type.
-on<dynamic> _on = new on.A();
-// [error line 46, column 1, length 2]
-// [analyzer] COMPILE_TIME_ERROR.NOT_A_TYPE
-// [cfe] 'on' isn't a type.
-show<dynamic> _show = new show.A();
-// [error line 50, column 1, length 4]
-// [analyzer] COMPILE_TIME_ERROR.NOT_A_TYPE
-// [cfe] 'show' isn't a type.
-sync<dynamic> _sync = new sync.A();
-// [error line 54, column 1, length 4]
-// [analyzer] COMPILE_TIME_ERROR.NOT_A_TYPE
-// [cfe] 'sync' isn't a type.
-yield<dynamic> _yield = new yield.A();
-// [error line 58, column 1, length 5]
-// [analyzer] COMPILE_TIME_ERROR.NOT_A_TYPE
-// [cfe] 'yield' isn't a type.
-
-async.B<async> _B_async = new async.B();
-//      ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-// [cfe] 'async' isn't a type.
-await.B<await> _B_await = new await.B();
-//      ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-// [cfe] 'await' isn't a type.
-hide.B<hide> _B_hide = new hide.B();
-//     ^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-// [cfe] 'hide' isn't a type.
-of.B<of> _B_of = new of.B();
-//   ^^
-// [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-// [cfe] 'of' isn't a type.
-on.B<on> _B_on = new on.B();
-//   ^^
-// [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-// [cfe] 'on' isn't a type.
-show.B<show> _B_show = new show.B();
-//     ^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-// [cfe] 'show' isn't a type.
-sync.B<sync> _B_sync = new sync.B();
-//     ^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-// [cfe] 'sync' isn't a type.
-yield.B<yield> _B_yield = new yield.B();
-//      ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-// [cfe] 'yield' isn't a type.
-
-async.B<async<dynamic>> _B2_async = new async.B();
-//      ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-// [cfe] 'async' isn't a type.
-await.B<await<dynamic>> _B2_await = new await.B();
-//      ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-// [cfe] 'await' isn't a type.
-hide.B<hide<dynamic>> _B2_hide = new hide.B();
-//     ^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-// [cfe] 'hide' isn't a type.
-of.B<of<dynamic>> _B2_of = new of.B();
-//   ^^
-// [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-// [cfe] 'of' isn't a type.
-on.B<on<dynamic>> _B2_on = new on.B();
-//   ^^
-// [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-// [cfe] 'on' isn't a type.
-show.B<show<dynamic>> _B2_show = new show.B();
-//     ^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-// [cfe] 'show' isn't a type.
-sync.B<sync<dynamic>> _B2_sync = new sync.B();
-//     ^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-// [cfe] 'sync' isn't a type.
-yield.B<yield<dynamic>> _B2_yield = new yield.B();
-//      ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-// [cfe] 'yield' isn't a type.
-
-main() {
-  Expect.isTrue(_async is async.A);
-  Expect.isTrue(_await is await.A);
-  Expect.isTrue(_hide is hide.A);
-  Expect.isTrue(_of is of.A);
-  Expect.isTrue(_on is on.A);
-  Expect.isTrue(_show is show.A);
-  Expect.isTrue(_sync is sync.A);
-  Expect.isTrue(_yield is yield.A);
-
-  Expect.isTrue(_B_async is async.B);
-  Expect.isTrue(_B_await is await.B);
-  Expect.isTrue(_B_hide is hide.B);
-  Expect.isTrue(_B_of is of.B);
-  Expect.isTrue(_B_on is on.B);
-  Expect.isTrue(_B_show is show.B);
-  Expect.isTrue(_B_sync is sync.B);
-  Expect.isTrue(_B_yield is yield.B);
-
-  Expect.isTrue(_B2_async is async.B);
-  Expect.isTrue(_B2_await is await.B);
-  Expect.isTrue(_B2_hide is hide.B);
-  Expect.isTrue(_B2_of is of.B);
-  Expect.isTrue(_B2_on is on.B);
-  Expect.isTrue(_B2_show is show.B);
-  Expect.isTrue(_B2_sync is sync.B);
-  Expect.isTrue(_B2_yield is yield.B);
-}
diff --git a/tests/language_2/identifier/known_prefix_test.dart b/tests/language_2/identifier/known_prefix_test.dart
deleted file mode 100644
index 2b18de79f2c..00000000000
--- a/tests/language_2/identifier/known_prefix_test.dart
+++ /dev/null
@@ -1,80 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// The identifiers listed below are mentioned in the grammar, but none of
-// them is a reserved word or a built-in identifier. Such an identifier can
-// be used as library prefix. Here are said 'known' identifiers:
-//
-//   `async`, `await`, `hide`, `of`, `on`, `show`, `sync`, `yield`.
-
-import "package:expect/expect.dart";
-import 'built_in_prefix_library_async.dart' as async;
-import 'built_in_prefix_library_await.dart' as await;
-import 'built_in_prefix_library_hide.dart' as hide;
-import 'built_in_prefix_library_of.dart' as of;
-import 'built_in_prefix_library_on.dart' as on;
-import 'built_in_prefix_library_show.dart' as show;
-import 'built_in_prefix_library_sync.dart' as sync;
-import 'built_in_prefix_library_yield.dart' as yield;
-
-async.A _async = new async.A();
-await.A _await = new await.A();
-hide.A _hide = new hide.A();
-of.A _of = new of.A();
-on.A _on = new on.A();
-show.A _show = new show.A();
-sync.A _sync = new sync.A();
-yield.A _yield = new yield.A();
-
-async.B<dynamic> dynamic_B_async = new async.B();
-await.B<dynamic> dynamic_B_await = new await.B();
-hide.B<dynamic> dynamic_B_hide = new hide.B();
-of.B<dynamic> dynamic_B_of = new of.B();
-on.B<dynamic> dynamic_B_on = new on.B();
-show.B<dynamic> dynamic_B_show = new show.B();
-sync.B<dynamic> dynamic_B_sync = new sync.B();
-yield.B<dynamic> dynamic_B_yield = new yield.B();
-
-class UseA {
-  async.A _async = new async.A();
-  await.A _await = new await.A();
-  hide.A _hide = new hide.A();
-  of.A _of = new of.A();
-  on.A _on = new on.A();
-  show.A _show = new show.A();
-  sync.A _sync = new sync.A();
-  yield.A _yield = new yield.A();
-}
-
-main() {
-  Expect.isTrue(_async is async.A);
-  Expect.isTrue(_await is await.A);
-  Expect.isTrue(_hide is hide.A);
-  Expect.isTrue(_of is of.A);
-  Expect.isTrue(_on is on.A);
-  Expect.isTrue(_show is show.A);
-  Expect.isTrue(_sync is sync.A);
-  Expect.isTrue(_yield is yield.A);
-
-  Expect.isTrue(dynamic_B_async is async.B);
-  Expect.isTrue(dynamic_B_await is await.B);
-  Expect.isTrue(dynamic_B_hide is hide.B);
-  Expect.isTrue(dynamic_B_of is of.B);
-  Expect.isTrue(dynamic_B_on is on.B);
-  Expect.isTrue(dynamic_B_show is show.B);
-  Expect.isTrue(dynamic_B_sync is sync.B);
-  Expect.isTrue(dynamic_B_yield is yield.B);
-
-  var x = new UseA();
-  Expect.isTrue(x._async is async.A);
-  Expect.isTrue(x._await is await.A);
-  Expect.isTrue(x._hide is hide.A);
-  Expect.isTrue(x._of is of.A);
-  Expect.isTrue(x._on is on.A);
-  Expect.isTrue(x._show is show.A);
-  Expect.isTrue(x._sync is sync.A);
-  Expect.isTrue(x._yield is yield.A);
-}
diff --git a/tests/language_2/identifier/known_usage_error_runtime_test.dart b/tests/language_2/identifier/known_usage_error_runtime_test.dart
deleted file mode 100644
index 29a187d69ad..00000000000
--- a/tests/language_2/identifier/known_usage_error_runtime_test.dart
+++ /dev/null
@@ -1,78 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// The identifiers listed below are mentioned in the grammar, but none of
-// them is a reserved word or a built-in identifier. Such an identifier can
-// be used just like all other identifiers, with the exceptions mentioned
-// below. Here are said 'known' identifiers:
-//
-//   `async`, `await`, `hide`, `of`, `on`, `show`, `sync`, `yield`
-//
-// The following exceptions apply:
-//
-//   It is a compile-time error to use `await` or `yield` as an identifier in
-//   the body of a function marked `async`, `async*`, or `sync*`.
-//
-//   It is a compile-time error if an asynchronous for-in appears inside a
-//   synchronous function.
-
-import 'dart:async';
-
-Future<int> f1() async {
-  // Allowed:
-  int async = 1;
-
-
-
-  Stream<int> s = new Stream<int>.fromFuture(new Future<int>.value(1));
-  await for (int i in s) {
-    return i + 1;
-  }
-}
-
-Stream<int> f2() async* {
-  int async = 1;
-
-
-
-  Stream<int> s = new Stream<int>.fromFuture(new Future<int>.value(1));
-  await for (var i in s) {
-    yield i + 1;
-  }
-}
-
-Iterable<int> f3() sync* {
-  int async = 1;
-
-
-
-  Stream<int> s = new Stream<int>.fromFuture(new Future<int>.value(1));
-
-
-
-}
-
-int f4() {
-  int async = 1;
-  int await = 1;
-  int yield = 1;
-
-  Stream s = new Stream<int>.fromFuture(new Future<int>.value(1));
-
-
-
-
-}
-
-main() {
-  Future<int> f = f1();
-  Stream s = f2();
-  Iterable<int> i = f3();
-  int x = f4();
-}
diff --git a/tests/language_2/identifier/known_usage_error_test.dart b/tests/language_2/identifier/known_usage_error_test.dart
deleted file mode 100644
index 8dcde29ec34..00000000000
--- a/tests/language_2/identifier/known_usage_error_test.dart
+++ /dev/null
@@ -1,99 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// The identifiers listed below are mentioned in the grammar, but none of
-// them is a reserved word or a built-in identifier. Such an identifier can
-// be used just like all other identifiers, with the exceptions mentioned
-// below. Here are said 'known' identifiers:
-//
-//   `async`, `await`, `hide`, `of`, `on`, `show`, `sync`, `yield`
-//
-// The following exceptions apply:
-//
-//   It is a compile-time error to use `await` or `yield` as an identifier in
-//   the body of a function marked `async`, `async*`, or `sync*`.
-//
-//   It is a compile-time error if an asynchronous for-in appears inside a
-//   synchronous function.
-
-import 'dart:async';
-
-Future<int> f1() async {
-  // Allowed:
-  int async = 1;
-  int await = 1;
-  //  ^^^^^
-  // [analyzer] SYNTACTIC_ERROR.ASYNC_KEYWORD_USED_AS_IDENTIFIER
-  // [cfe] 'await' can't be used as an identifier in 'async', 'async*', or 'sync*' methods.
-  int yield = 1;
-  //  ^^^^^
-  // [analyzer] SYNTACTIC_ERROR.ASYNC_KEYWORD_USED_AS_IDENTIFIER
-  // [cfe] 'yield' can't be used as an identifier in 'async', 'async*', or 'sync*' methods.
-
-  Stream<int> s = new Stream<int>.fromFuture(new Future<int>.value(1));
-  await for (int i in s) {
-    return i + 1;
-  }
-}
-
-Stream<int> f2() async* {
-  int async = 1;
-  int await = 1;
-  //  ^^^^^
-  // [analyzer] SYNTACTIC_ERROR.ASYNC_KEYWORD_USED_AS_IDENTIFIER
-  // [cfe] 'await' can't be used as an identifier in 'async', 'async*', or 'sync*' methods.
-  int yield = 1;
-  //  ^^^^^
-  // [analyzer] SYNTACTIC_ERROR.ASYNC_KEYWORD_USED_AS_IDENTIFIER
-  // [cfe] 'yield' can't be used as an identifier in 'async', 'async*', or 'sync*' methods.
-
-  Stream<int> s = new Stream<int>.fromFuture(new Future<int>.value(1));
-  await for (var i in s) {
-    yield i + 1;
-  }
-}
-
-Iterable<int> f3() sync* {
-  int async = 1;
-  int await = 1;
-  //  ^^^^^
-  // [analyzer] SYNTACTIC_ERROR.ASYNC_KEYWORD_USED_AS_IDENTIFIER
-  // [cfe] 'await' can't be used as an identifier in 'async', 'async*', or 'sync*' methods.
-  int yield = 1;
-  //  ^^^^^
-  // [analyzer] SYNTACTIC_ERROR.ASYNC_KEYWORD_USED_AS_IDENTIFIER
-  // [cfe] 'yield' can't be used as an identifier in 'async', 'async*', or 'sync*' methods.
-
-  Stream<int> s = new Stream<int>.fromFuture(new Future<int>.value(1));
-  await for (int i in s) {
-//^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASYNC_FOR_IN_WRONG_CONTEXT
-// [cfe] The asynchronous for-in can only be used in functions marked with 'async' or 'async*'.
-    yield i + 1;
-  }
-}
-
-int f4() {
-  int async = 1;
-  int await = 1;
-  int yield = 1;
-
-  Stream s = new Stream<int>.fromFuture(new Future<int>.value(1));
-  await for (int i in s) {
-//^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASYNC_FOR_IN_WRONG_CONTEXT
-// [cfe] The asynchronous for-in can only be used in functions marked with 'async' or 'async*'.
-    return i + 1;
-  }
-
-}
-
-main() {
-  Future<int> f = f1();
-  Stream s = f2();
-  Iterable<int> i = f3();
-  int x = f4();
-}
diff --git a/tests/language_2/identifier/known_usage_test.dart b/tests/language_2/identifier/known_usage_test.dart
deleted file mode 100644
index 00eb2e80846..00000000000
--- a/tests/language_2/identifier/known_usage_test.dart
+++ /dev/null
@@ -1,372 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// The identifiers listed below are mentioned in the grammar, but none of
-// them is a reserved word or a built-in identifier. Such an identifier can
-// be used just like all other identifiers, with a few exceptions. Here are
-// said 'known' identifiers:
-//
-//   `async`, `await`, `hide`, `of`, `on`, `show`, `sync`, `yield`
-//
-// This test contains various declarations of entities whose name is one of
-// these known identifiers.
-
-// Top level.
-
-var async; //# 01: ok
-var await; //# 01: continued
-var hide; //# 01: continued
-var of; //# 01: continued
-var on; //# 01: continued
-var show; //# 01: continued
-var sync; //# 01: continued
-var yield; //# 01: continued
-
-int async; //# 02: ok
-int await; //# 02: continued
-int hide; //# 02: continued
-int of; //# 02: continued
-int on; //# 02: continued
-int show; //# 02: continued
-int sync; //# 02: continued
-int yield; //# 02: continued
-
-final String async = ""; //# 03: ok
-final String await = ""; //# 03: continued
-final String hide = ""; //# 03: continued
-final String of = ""; //# 03: continued
-final String on = ""; //# 03: continued
-final String show = ""; //# 03: continued
-final String sync = ""; //# 03: continued
-final String yield = ""; //# 03: continued
-
-const async = null; //# 04: ok
-const await = null; //# 04: continued
-const hide = null; //# 04: continued
-const of = null; //# 04: continued
-const on = null; //# 04: continued
-const show = null; //# 04: continued
-const sync = null; //# 04: continued
-const yield = null; //# 04: continued
-
-void async() {} //# 05: ok
-void await() {} //# 05: continued
-void hide() {} //# 05: continued
-void of() {} //# 05: continued
-void on() {} //# 05: continued
-void show() {} //# 05: continued
-void sync() {} //# 05: continued
-void yield() {} //# 05: continued
-
-void f1(async, await, hide, of, on, show, sync, yield) {}
-void f2([async, await, hide, of, on, show, sync, yield]) {}
-void f3({async, await, hide, of, on, show, sync, yield}) {}
-
-void f4(
-  int async,
-  int await,
-  int hide,
-  int of,
-  int on,
-  int show,
-  int sync,
-  int yield,
-) {}
-
-void f5([
-  int async,
-  int await,
-  int hide,
-  int of,
-  int on,
-  int show,
-  int sync,
-  int yield,
-]) {}
-
-void f6({
-  int async,
-  int await,
-  int hide,
-  int of,
-  int on,
-  int show,
-  int sync,
-  int yield,
-}) {}
-
-class A {
-  var async; //# 01: continued
-  var await; //# 01: continued
-  var hide; //# 01: continued
-  var of; //# 01: continued
-  var on; //# 01: continued
-  var show; //# 01: continued
-  var sync; //# 01: continued
-  var yield; //# 01: continued
-
-  num async; //# 02: continued
-  num await; //# 02: continued
-  num hide; //# 02: continued
-  num of; //# 02: continued
-  num on; //# 02: continued
-  num show; //# 02: continued
-  num sync; //# 02: continued
-  num yield; //# 02: continued
-
-  final String async = ""; //# 03: continued
-  final String await = ""; //# 03: continued
-  final String hide = ""; //# 03: continued
-  final String of = ""; //# 03: continued
-  final String on = ""; //# 03: continued
-  final String show = ""; //# 03: continued
-  final String sync = ""; //# 03: continued
-  final String yield = ""; //# 03: continued
-
-  String get async => ""; //# 04: continued
-  String get await => ""; //# 04: continued
-  String get hide => ""; //# 04: continued
-  String get of => ""; //# 04: continued
-  String get on => ""; //# 04: continued
-  String get show => ""; //# 04: continued
-  String get sync => ""; //# 04: continued
-  String get yield => ""; //# 04: continued
-
-  void async() {} //# 05: ok
-  void await() {} //# 05: continued
-  void hide() {} //# 05: continued
-  void of() {} //# 05: continued
-  void on() {} //# 05: continued
-  void show() {} //# 05: continued
-  void sync() {} //# 05: continued
-  void yield() {} //# 05: continued
-
-  A();
-
-  A.c1( //# 01: continued
-    this.async, //# 01: continued
-    this.await, //# 01: continued
-    this.hide, //# 01: continued
-    this.of, //# 01: continued
-    this.on, //# 01: continued
-    this.show, //# 01: continued
-    this.sync, //# 01: continued
-    this.yield, //# 01: continued
-  ) {} //# 01: continued
-
-  A.c2([ //# 01: continued
-    this.async, //# 01: continued
-    this.await, //# 01: continued
-    this.hide, //# 01: continued
-    this.of, //# 01: continued
-    this.on, //# 01: continued
-    this.show, //# 01: continued
-    this.sync, //# 01: continued
-    this.yield, //# 01: continued
-  ]) {} //# 01: continued
-
-  A.c3({ //# 01: continued
-    this.async, //# 01: continued
-    this.await, //# 01: continued
-    this.hide, //# 01: continued
-    this.of, //# 01: continued
-    this.on, //# 01: continued
-    this.show, //# 01: continued
-    this.sync, //# 01: continued
-    this.yield, //# 01: continued
-  }) {} //# 01: continued
-
-  A.c4( //# 02: continued
-    int this.async, //# 02: continued
-    int this.await, //# 02: continued
-    int this.hide, //# 02: continued
-    int this.of, //# 02: continued
-    int this.on, //# 02: continued
-    int this.show, //# 02: continued
-    int this.sync, //# 02: continued
-    int this.yield, //# 02: continued
-  ) {} //# 02: continued
-
-  A.c5([ //# 02: continued
-    int this.async, //# 02: continued
-    int this.await, //# 02: continued
-    int this.hide, //# 02: continued
-    int this.of, //# 02: continued
-    int this.on, //# 02: continued
-    int this.show, //# 02: continued
-    int this.sync, //# 02: continued
-    int this.yield, //# 02: continued
-  ]) {} //# 02: continued
-
-  A.c6({ //# 02: continued
-    int this.async, //# 02: continued
-    int this.await, //# 02: continued
-    int this.hide, //# 02: continued
-    int this.of, //# 02: continued
-    int this.on, //# 02: continued
-    int this.show, //# 02: continued
-    int this.sync, //# 02: continued
-    int this.yield, //# 02: continued
-  }) {} //# 02: continued
-
-  void method1(
-    covariant int async,
-    covariant int await,
-    covariant int hide,
-    covariant int of,
-    covariant int on,
-    covariant int show,
-    covariant int sync,
-    covariant int yield,
-  ) {}
-
-  void method2([
-    covariant int async,
-    covariant int await,
-    covariant int hide,
-    covariant int of,
-    covariant int on,
-    covariant int show,
-    covariant int sync,
-    covariant int yield,
-  ]) {}
-
-  void method3({
-    covariant int async,
-    covariant int await,
-    covariant int hide,
-    covariant int of,
-    covariant int on,
-    covariant int show,
-    covariant int sync,
-    covariant int yield,
-  }) {}
-}
-
-class B {
-  static var async; //# 01: continued
-  static var await; //# 01: continued
-  static var hide; //# 01: continued
-  static var of; //# 01: continued
-  static var on; //# 01: continued
-  static var show; //# 01: continued
-  static var sync; //# 01: continued
-  static var yield; //# 01: continued
-
-  static num async; //# 02: continued
-  static num await; //# 02: continued
-  static num hide; //# 02: continued
-  static num of; //# 02: continued
-  static num on; //# 02: continued
-  static num show; //# 02: continued
-  static num sync; //# 02: continued
-  static num yield; //# 02: continued
-
-  static final String async = ""; //# 03: continued
-  static final String await = ""; //# 03: continued
-  static final String hide = ""; //# 03: continued
-  static final String of = ""; //# 03: continued
-  static final String on = ""; //# 03: continued
-  static final String show = ""; //# 03: continued
-  static final String sync = ""; //# 03: continued
-  static final String yield = ""; //# 03: continued
-
-  static const async = null; //# 04: continued
-  static const await = null; //# 04: continued
-  static const hide = null; //# 04: continued
-  static const of = null; //# 04: continued
-  static const on = null; //# 04: continued
-  static const show = null; //# 04: continued
-  static const sync = null; //# 04: continued
-  static const yield = null; //# 04: continued
-
-  static get async => null; //# 05: continued
-  static get await => null; //# 05: continued
-  static get hide => null; //# 05: continued
-  static get of => null; //# 05: continued
-  static get on => null; //# 05: continued
-  static get show => null; //# 05: continued
-  static get sync => null; //# 05: continued
-  static get yield => null; //# 05: continued
-}
-
-main() {
-  /* //# none: ok
-
-  // Except none: Use a top-level declaration.
-  var top_async = async;
-  var top_await = await;
-  var top_hide = hide;
-  var top_of = of;
-  var top_on = on;
-  var top_show = show;
-  var top_sync = sync;
-  var top_yield = yield;
-
-  // Except none: Use an instance member of A.
-  A a = new A();
-  var instance_async = a.async;
-  var instance_await = a.await;
-  var instance_hide = a.hide;
-  var instance_of = a.of;
-  var instance_on = a.on;
-  var instance_show = a.show;
-  var instance_sync = a.sync;
-  var instance_yield = a.yield;
-
-  // Except none: Use a static member of B.
-
-  var static_async = B.async;
-  var static_await = B.await;
-  var static_hide = B.hide;
-  var static_of = B.of;
-  var static_on = B.on;
-  var static_show = B.show;
-  var static_sync = B.sync;
-  var static_yield = B.yield;
-
-  */ //# none: continued
-
-  var a1 = new A.c1(1, 1, 1, 1, 1, 1, 1, 1); //# 01: continued
-  var a2 = new A.c2(); //# 01: continued
-  var a3 = new A.c3( //# 01: continued
-    async: 1, //# 01: continued
-    await: 1, //# 01: continued
-    hide: 1, //# 01: continued
-    of: 1, //# 01: continued
-    on: 1, //# 01: continued
-    show: 1, //# 01: continued
-    sync: 1, //# 01: continued
-    yield: 1, //# 01: continued
-  ); //# 01: continued
-
-  var a4 = new A.c4(1, 1, 1, 1, 1, 1, 1, 1); //# 02: continued
-  var a5 = new A.c5(); //# 02: continued
-  var a6 = new A.c6( //# 02: continued
-    async: 1, //# 02: continued
-    await: 1, //# 02: continued
-    hide: 1, //# 02: continued
-    of: 1, //# 02: continued
-    on: 1, //# 02: continued
-    show: 1, //# 02: continued
-    sync: 1, //# 02: continued
-    yield: 1, //# 02: continued
-  ); //# 02: continued
-
-  var aa = new A();
-  aa.method1(1, 1, 1, 1, 1, 1, 1, 1);
-  aa.method2();
-  aa.method3(
-    async: 1,
-    await: 1,
-    hide: 1,
-    of: 1,
-    on: 1,
-    show: 1,
-    sync: 1,
-    yield: 1,
-  );
-}
diff --git a/tests/language_2/identifier/naming2_test.dart b/tests/language_2/identifier/naming2_test.dart
deleted file mode 100644
index a23b0be5f13..00000000000
--- a/tests/language_2/identifier/naming2_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  var function;
-  A(function) : function = function;
-}
-
-main() {
-  var a = new A(499);
-  Expect.equals(499, a.function);
-}
diff --git a/tests/language_2/identifier/naming3_test.dart b/tests/language_2/identifier/naming3_test.dart
deleted file mode 100644
index 4017b7ff382..00000000000
--- a/tests/language_2/identifier/naming3_test.dart
+++ /dev/null
@@ -1,99 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  var __PROTO__ = 499;
-  var constructor = 1;
-  var prototype = 2;
-}
-
-// TODO(jmesserly): changed this test to avoid shadowing a field with a getter,
-// which DDC doesn't currently support, see:
-// https://github.com/dart-lang/dev_compiler/issues/52
-class A2 {
-  get __PROTO__ => 499;
-  get constructor => 1;
-  get prototype => 2;
-}
-
-class B extends A2 {
-  get __PROTO__ => 42;
-  get constructor => 3;
-  get prototype => 4;
-}
-
-class P {
-  m() => 42;
-}
-
-class C {
-  m() => 777;
-  static get prototype => new P();
-  static get name => 'hello from C.name';
-  static void _check(obj) {
-    Expect.equals(obj, 'hello');
-    check_++;
-  }
-
-  static void as(obj) {
-    Expect.equals(obj, 'world');
-    as_++;
-  }
-
-  static int as_ = 0;
-  static int check_ = 0;
-}
-
-// Regression test for https://github.com/dart-lang/sdk/issues/31049
-regress31049() {
-  dynamic d = new C();
-  C c = d; // implicit cast
-  d as C; // explicit cast
-  C._check('hello');
-  Expect.equals(C.check_, 1);
-  C.as('world');
-  Expect.equals(C.as_, 1);
-}
-
-// Regression test for https://github.com/dart-lang/sdk/issues/31050
-regress31050() {
-  Expect.isFalse((C).toString().contains('C.name'), 'should not call C.name');
-  Expect.equals(C.name, 'hello from C.name');
-  Expect.equals(C.prototype.m(), 42);
-  Expect.equals(new C().m(), 777);
-}
-
-var name = 42;
-regress31117() {
-  Expect.equals(name, 42);
-}
-
-main() {
-  var a = new A();
-  var a2 = new A2();
-  var b = new B();
-  var list = <dynamic>[a, a2, b];
-  for (int i = 0; i < list.length; i++) {
-    var proto = list[i].__PROTO__;
-    var constructor = list[i].constructor;
-    var prototype = list[i].prototype;
-    if (i < 2) {
-      Expect.equals(499, proto);
-      Expect.equals(1, constructor);
-      Expect.equals(2, prototype);
-    } else {
-      Expect.equals(42, proto);
-      Expect.equals(3, constructor);
-      Expect.equals(4, prototype);
-    }
-  }
-
-  regress31049();
-  regress31050();
-  regress31117();
-}
diff --git a/tests/language_2/identifier/naming_test.dart b/tests/language_2/identifier/naming_test.dart
deleted file mode 100644
index 4ab6a0002e6..00000000000
--- a/tests/language_2/identifier/naming_test.dart
+++ /dev/null
@@ -1,530 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  A() {
-    NamingTest.count++;
-  }
-  foo(a, b) {
-    Expect.equals(1, a);
-    Expect.equals(2, b);
-  }
-}
-
-class MyException {
-  MyException() {}
-}
-
-class debugger {
-  static const int __PROTO__ = 5;
-
-  int x;
-
-  factory debugger.F() {
-    return new debugger(1);
-  }
-  debugger(x) : this.x = x + 1 {}
-  debugger.C(x) : this.x = x + 2 {}
-  debugger.C$C(x) : this.x = x + 3 {}
-  debugger.C$I(x) : this.x = x + 4 {}
-}
-
-class debugger$C {
-  int x;
-
-  factory debugger$C.F() {
-    return new debugger$C(1);
-  }
-  debugger$C(x) : this.x = x + 5 {}
-  debugger$C.C(x) : this.x = x + 6 {}
-  debugger$C.C$C(x) : this.x = x + 7 {}
-  debugger$C.C$I(x) : this.x = x + 8 {}
-}
-
-class debugger$C$C {
-  int x;
-
-  factory debugger$C$C.F() {
-    return new debugger$C$C(1);
-  }
-  debugger$C$C(x) : this.x = x + 9 {}
-  debugger$C$C.C(x) : this.x = x + 10 {}
-  debugger$C$C.C$C(x) : this.x = x + 11 {}
-  debugger$C$C.C$I(x) : this.x = x + 12 {}
-}
-
-class with$I extends debugger$C {
-  int y;
-
-  factory with$I.F() {
-    return new with$I(1, 2);
-  }
-  with$I(x, y)
-      : this.y = y + 11,
-        super(x) {}
-  with$I.I(x, y)
-      : this.y = y + 12,
-        super.C(x) {}
-  with$I.C(x, y)
-      : this.y = y + 13,
-        super.C$C(x){}
-  with$I.I$C(x, y)
-      : this.y = y + 14,
-        super.C$I(x) {}
-  with$I.C$C(x, y)
-      : this.y = y + 15,
-        super(x) {}
-  with$I.C$C$C(x, y)
-      : this.y = y + 16,
-        super.C(x) {}
-  with$I.$C$I(x, y)
-      :this.y = y + 17,
-        super.C$C(x) {}
-  with$I.$$I$C(x, y)
-      :this.y = y + 18,
-        super.C$I(x) {}
-  with$I.$(x, y)
-      : this.y = y + 19,
-        super(x) {}
-  with$I.$$(x, y)
-      : this.y = y + 20,
-        super.C(x) {}
-}
-
-class with$C extends debugger$C$C {
-  int y;
-
-  factory with$C.F() {
-    return new with$C(1, 2);
-  }
-  with$C(x, y)
-      : this.y = y + 21,
-        super(x) {}
-  with$C.I(x, y)
-      : this.y = y + 22,
-        super.C(x) {}
-  with$C.C(x, y)
-      : this.y = y + 23,
-        super.C$C(x) {}
-  with$C.I$C(x, y)
-      : this.y = y + 24,
-        super.C$I(x) {}
-  with$C.C$C(x, y)
-      : this.y = y + 25,
-        super(x) {}
-  with$C.C$C$C(x, y)
-      : this.y = y + 26,
-        super.C(x) {}
-  with$C.$C$I(x, y)
-      : this.y = y + 27,
-        super.C$C(x) {}
-  with$C.$$I$C(x, y)
-      : this.y = y + 28,
-        super.C$I(x) {}
-  with$C.$(x, y)
-      : this.y = y + 29,
-        super(x) {}
-  with$C.$$(x, y)
-      : this.y = y + 30,
-        super.C(x) {}
-}
-
-class with$I$C extends debugger$C$C {
-  int y;
-
-  factory with$I$C.F() {
-    return new with$I$C(1, 2);
-  }
-  with$I$C(x, y)
-      : this.y = y + 31,
-        super(x) {}
-  with$I$C.I(x, y)
-      : this.y = y + 32,
-        super.C(x) {}
-  with$I$C.C(x, y)
-      : this.y = y + 33,
-        super.C$C(x) {}
-  with$I$C.I$C(x, y)
-      : this.y = y + 34,
-        super.C$I(x) {}
-  with$I$C.C$C(x, y)
-      : this.y = y + 35,
-        super(x) {}
-  with$I$C.C$C$C(x, y)
-      : this.y = y + 36,
-        super.C(x) {}
-  with$I$C.$C$I(x, y)
-      : this.y = y + 37,
-        super.C$C(x) {}
-  with$I$C.$$I$C(x, y)
-      : this.y = y + 38,
-        super.C$I(x) {}
-  with$I$C.$(x, y)
-      : this.y = y + 39,
-        super(x) {}
-  with$I$C.$$(x, y)
-      : this.y = y + 40,
-        super.C(x) {}
-}
-
-class Tata {
-  var prototype;
-
-  Tata() : this.prototype = 0 {}
-
-  __PROTO__$() {
-    return 12;
-  }
-}
-
-class Toto extends Tata {
-  var __PROTO__;
-
-  Toto()
-      : this.__PROTO__ = 0,
-        super() {}
-
-  prototype$() {
-    return 10;
-  }
-
-  titi() {
-    Expect.equals(0, prototype);
-    Expect.equals(0, __PROTO__);
-    prototype = 3;
-    __PROTO__ = 5;
-    Expect.equals(3, prototype);
-    Expect.equals(5, __PROTO__);
-    Expect.equals(10, prototype$());
-    Expect.equals(12, __PROTO__$());
-    Expect.equals(12, this.__PROTO__$());
-    Expect.equals(10, this.prototype$());
-    Expect.equals(12, __PROTO__$());
-  }
-}
-
-class Bug4082360 {
-  int x_;
-  Bug4082360() {}
-
-  int get x {
-    return x_;
-  }
-
-  void set x(int value) {
-    x_ = value;
-  }
-
-  void indirectSet(int value) {
-    x = value;
-  }
-
-  static void test() {
-    var bug = new Bug4082360();
-    bug.indirectSet(42);
-    Expect.equals(42, bug.x_);
-    Expect.equals(42, bug.x);
-  }
-}
-
-class Hoisting {
-  var f_;
-  Hoisting.negate(var x) {
-    f_ = () {
-      return x;
-    };
-  }
-
-  operator -() {
-    var x = 3;
-    return () {
-      return x + 1;
-    };
-  }
-
-  operator [](x) {
-    return () {
-      return x + 3;
-    };
-  }
-
-  static void test() {
-    var h = new Hoisting.negate(1);
-    Expect.equals(1, (h.f_)());
-    var f = -h;
-    Expect.equals(4, f());
-    Expect.equals(7, h[4]());
-  }
-}
-
-// It is not possible to make sure that the backend uses the hardcoded names
-// we are testing against. This test might therefore become rapidly out of date
-class NamingTest {
-  static int count;
-
-  static testExceptionNaming() {
-    // Exceptions use a hardcoded "e" as exception name. If the namer works
-    // correctly then it will be renamed in case of clashes.
-    var e = 3;
-    var caught = 0;
-    try {
-      throw new MyException();
-    } catch (exc) {
-      try {
-        throw new MyException();
-      } catch (exc2) {
-        caught++;
-      }
-      Expect.equals(1, caught);
-      caught++;
-    }
-    Expect.equals(2, caught);
-    Expect.equals(3, e);
-  }
-
-  static testTmpNaming() {
-    Expect.equals(0, count);
-    var tmp$0 = 1;
-    var tmp$1 = 2;
-    new A().foo(tmp$0, tmp$1++);
-    Expect.equals(1, count);
-    Expect.equals(3, tmp$1);
-  }
-
-  static testScopeNaming() {
-    // Alias scopes use a hardcoded "dartc_scp$<depth>" as names.
-    var dartc_scp$1 = 5;
-    var foo = 8;
-    var f = () {
-      var dartc_scp$1 = 15;
-      return foo + dartc_scp$1;
-    };
-    Expect.equals(5, dartc_scp$1);
-    Expect.equals(23, f());
-  }
-
-  static testGlobalMangling() {
-    var x;
-    x = new debugger(0);
-    Expect.equals(1, x.x);
-    x = new debugger.C(0);
-    Expect.equals(2, x.x);
-    x = new debugger.C$C(0);
-    Expect.equals(3, x.x);
-    x = new debugger.C$I(0);
-    Expect.equals(4, x.x);
-    x = new debugger$C(0);
-    Expect.equals(5, x.x);
-    x = new debugger$C.C(0);
-    Expect.equals(6, x.x);
-    x = new debugger$C.C$C(0);
-    Expect.equals(7, x.x);
-    x = new debugger$C.C$I(0);
-    Expect.equals(8, x.x);
-    x = new debugger$C$C(0);
-    Expect.equals(9, x.x);
-    x = new debugger$C$C.C(0);
-    Expect.equals(10, x.x);
-    x = new debugger$C$C.C$C(0);
-    Expect.equals(11, x.x);
-    x = new debugger$C$C.C$I(0);
-    Expect.equals(12, x.x);
-    x = new with$I(0, 0);
-    Expect.equals(5, x.x);
-    Expect.equals(11, x.y);
-    x = new with$I.I(0, 0);
-    Expect.equals(6, x.x);
-    Expect.equals(12, x.y);
-    x = new with$I.C(0, 0);
-    Expect.equals(7, x.x);
-    Expect.equals(13, x.y);
-    x = new with$I.I$C(0, 0);
-    Expect.equals(8, x.x);
-    Expect.equals(14, x.y);
-    x = new with$I.C$C(0, 0);
-    Expect.equals(5, x.x);
-    Expect.equals(15, x.y);
-    x = new with$I.C$C$C(0, 0);
-    Expect.equals(6, x.x);
-    Expect.equals(16, x.y);
-    x = new with$I.$C$I(0, 0);
-    Expect.equals(7, x.x);
-    Expect.equals(17, x.y);
-    x = new with$I.$$I$C(0, 0);
-    Expect.equals(8, x.x);
-    Expect.equals(18, x.y);
-    x = new with$I.$(0, 0);
-    Expect.equals(5, x.x);
-    Expect.equals(19, x.y);
-    x = new with$I.$$(0, 0);
-    Expect.equals(6, x.x);
-    Expect.equals(20, x.y);
-    x = new with$C(0, 0);
-    Expect.equals(9, x.x);
-    Expect.equals(21, x.y);
-    x = new with$C.I(0, 0);
-    Expect.equals(10, x.x);
-    Expect.equals(22, x.y);
-    x = new with$C.C(0, 0);
-    Expect.equals(11, x.x);
-    Expect.equals(23, x.y);
-    x = new with$C.I$C(0, 0);
-    Expect.equals(12, x.x);
-    Expect.equals(24, x.y);
-    x = new with$C.C$C(0, 0);
-    Expect.equals(9, x.x);
-    Expect.equals(25, x.y);
-    x = new with$C.C$C$C(0, 0);
-    Expect.equals(10, x.x);
-    Expect.equals(26, x.y);
-    x = new with$C.$C$I(0, 0);
-    Expect.equals(11, x.x);
-    Expect.equals(27, x.y);
-    x = new with$C.$$I$C(0, 0);
-    Expect.equals(12, x.x);
-    Expect.equals(28, x.y);
-    x = new with$C.$(0, 0);
-    Expect.equals(9, x.x);
-    Expect.equals(29, x.y);
-    x = new with$C.$$(0, 0);
-    Expect.equals(10, x.x);
-    Expect.equals(30, x.y);
-    x = new with$I$C(0, 0);
-    Expect.equals(9, x.x);
-    Expect.equals(31, x.y);
-    x = new with$I$C.I(0, 0);
-    Expect.equals(10, x.x);
-    Expect.equals(32, x.y);
-    x = new with$I$C.C(0, 0);
-    Expect.equals(11, x.x);
-    Expect.equals(33, x.y);
-    x = new with$I$C.I$C(0, 0);
-    Expect.equals(12, x.x);
-    Expect.equals(34, x.y);
-    x = new with$I$C.C$C(0, 0);
-    Expect.equals(9, x.x);
-    Expect.equals(35, x.y);
-    x = new with$I$C.C$C$C(0, 0);
-    Expect.equals(10, x.x);
-    Expect.equals(36, x.y);
-    x = new with$I$C.$C$I(0, 0);
-    Expect.equals(11, x.x);
-    Expect.equals(37, x.y);
-    x = new with$I$C.$$I$C(0, 0);
-    Expect.equals(12, x.x);
-    Expect.equals(38, x.y);
-    x = new with$I$C.$(0, 0);
-    Expect.equals(9, x.x);
-    Expect.equals(39, x.y);
-    x = new with$I$C.$$(0, 0);
-    Expect.equals(10, x.x);
-    Expect.equals(40, x.y);
-  }
-
-  static void testMemberMangling() {
-    Expect.equals(5, debugger.__PROTO__);
-    new Toto().titi();
-  }
-
-  static void testFactoryMangling() {
-    var o = new debugger.F() as dynamic;
-    Expect.equals(2, o.x);
-    o = new debugger$C.F();
-    Expect.equals(6, o.x);
-    o = new debugger$C$C.F();
-    Expect.equals(10, o.x);
-    o = new with$I.F();
-    Expect.equals(6, o.x);
-    Expect.equals(13, o.y);
-    o = new with$C.F();
-    Expect.equals(10, o.x);
-    Expect.equals(23, o.y);
-    o = new with$I$C.F();
-    Expect.equals(10, o.x);
-    Expect.equals(33, o.y);
-  }
-
-  static testFunctionParameters() {
-    a(eval) {
-      return eval;
-    }
-
-    b(arguments) {
-      return arguments;
-    }
-
-    Expect.equals(10, a(10));
-    Expect.equals(10, b(10));
-  }
-
-  static testPseudoTokens() {
-    var EOS = 400;
-    var ILLEGAL = 99;
-    Expect.equals(499, EOS + ILLEGAL);
-  }
-
-  static testDollar() {
-    Expect.equals(123, $(123).wrapped);
-    var x = new Object(), y = new Object();
-    Expect.identical(x, $(x).wrapped);
-    Expect.identical(y, $(x).$add(y));
-    Expect.identical(x, $(x).$negate());
-    Expect.equals(123, $(x) + x);
-    Expect.equals(444, -$(x));
-  }
-
-  static void testMain() {
-    count = 0;
-    testExceptionNaming();
-    testTmpNaming();
-    testScopeNaming();
-    testGlobalMangling();
-    testMemberMangling();
-    testFactoryMangling();
-    testFunctionParameters();
-    Bug4082360.test();
-    Hoisting.test();
-    testPseudoTokens();
-    testDollar();
-  }
-}
-
-// Test that the generated JS names don't conflict with "$"
-class DartQuery {
-  Object wrapped;
-  DartQuery(this.wrapped);
-
-  $add(Object other) => other;
-  $negate() => wrapped;
-
-  operator +(Object other) => 123;
-  operator -() => 444;
-}
-
-$add(Object first, Object second) => second;
-DartQuery $(Object obj) => new DartQuery(obj);
-
-// Ensure we don't have false positive.
-class Naming2Test {
-  Naming2Test() {}
-  int get foo {
-    return 1;
-  }
-
-  set foo(x) {}
-
-  static void main(args) {
-    var a = new Naming2Test() as dynamic;
-    Expect.throwsNoSuchMethodError(() => a.foo(2));
-  }
-}
-
-main() {
-  NamingTest.testMain();
-  Naming2Test.main(null);
-}
diff --git a/tests/language_2/identity/closure2_test.dart b/tests/language_2/identity/closure2_test.dart
deleted file mode 100644
index 1027b6339c7..00000000000
--- a/tests/language_2/identity/closure2_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var myIdentical = identical;
-
-main() {
-  // Mint (2^63).
-  // TODO(rnystrom): Figure out how to change this to work on the web.
-  Expect.isTrue(myIdentical(0x8000000000000000, 0x8000000000000000));
-  Expect.isFalse(myIdentical(0x8000000000000000, 0x8000000000000001));
-
-  // Different types.
-  Expect.isFalse(myIdentical(42, 42.0));
-
-  // NaN handling.
-  Expect.isTrue(myIdentical(double.nan, double.nan));
-}
diff --git a/tests/language_2/identity/closure_test.dart b/tests/language_2/identity/closure_test.dart
deleted file mode 100644
index 63e7d91f818..00000000000
--- a/tests/language_2/identity/closure_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var myIdentical = identical;
-
-class Point {
-  num x, y;
-  Point(this.x, this.y);
-}
-
-main() {
-  // int.
-  Expect.isTrue(myIdentical(42, 42));
-  Expect.isFalse(myIdentical(42, 41));
-
-  // double.
-  Expect.isTrue(myIdentical(42.0, 42.0));
-  Expect.isFalse(myIdentical(42.0, 41.0));
-
-  // Mint (2^45).
-  Expect.isTrue(myIdentical(35184372088832, 35184372088832));
-  Expect.isFalse(myIdentical(35184372088832, 35184372088831));
-
-  // Different types.
-  Expect.isFalse(myIdentical("hello", 41));
-
-  // Points.
-  var p = new Point(1, 1);
-  var q = new Point(1, 1);
-  Expect.isFalse(myIdentical(p, q));
-
-  // Strings.
-  var a = "hello";
-  var b = "hello";
-  // Identical strings are coalesced into single instances.
-  Expect.isTrue(myIdentical(a, b));
-
-  // Null handling.
-  Expect.isFalse(myIdentical(42, null));
-  Expect.isTrue(myIdentical(null, null));
-}
diff --git a/tests/language_2/identity/const_test.dart b/tests/language_2/identity/const_test.dart
deleted file mode 100644
index 2ea728bbbe4..00000000000
--- a/tests/language_2/identity/const_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-f() {}
-const g = 1;
-
-const identical_ff = identical(f, f);
-const identical_fg = identical(f, g);
-const identical_gf = identical(g, f);
-const identical_gg = identical(g, g);
-
-// Verify proper compile time computation of identical()
-const a = const {
-  identical_ff: 0, //# 01: compile-time error
-  identical_gg: 0, //# 02: compile-time error
-  true: 0
-};
-
-const b = const {
-  identical_fg: 0, //# 03: compile-time error
-  identical_gf: 0, //# 04: compile-time error
-  false: 0
-};
-
-use(x) => x;
-
-main() {
-  use(a);
-  use(b);
-
-  // Verify proper run time computation of identical()
-  Expect.isTrue(identical_ff); //# 05: ok
-  Expect.isTrue(identical_gg); //# 06: ok
-  Expect.isFalse(identical_fg); //# 07: ok
-  Expect.isFalse(identical_gf); //# 08: ok
-}
diff --git a/tests/language_2/identity/identical_test.dart b/tests/language_2/identity/identical_test.dart
deleted file mode 100644
index 8be2590f6f4..00000000000
--- a/tests/language_2/identity/identical_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test efficient and correct implementation of !identical(a, b).
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-notIdenticalTest1(a) {
-  if (!identical("ho", a)) {
-    return 2;
-  } else {
-    return 1;
-  }
-}
-
-notIdenticalTest2(a) {
-  var x = identical("ho", a);
-  if (!x) {
-    Expect.equals(false, x);
-    return x;
-  } else {
-    Expect.equals(true, x);
-    return 1;
-  }
-}
-
-notIdenticalTest3(a) {
-  var x = identical("ho", a);
-  return !x;
-}
-
-main() {
-  for (int i = 0; i < 20; i++) {
-    Expect.equals(1, notIdenticalTest1("ho"));
-    Expect.equals(1, notIdenticalTest2("ho"));
-    Expect.equals(false, notIdenticalTest3("ho"));
-  }
-}
diff --git a/tests/language_2/identity/mint_identical_test.dart b/tests/language_2/identity/mint_identical_test.dart
deleted file mode 100644
index ab81c99581b..00000000000
--- a/tests/language_2/identity/mint_identical_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  // Smis on 64-bit.
-  Expect.isTrue(identical(2305843009213693952, 2305843009213693952));
-  Expect.isTrue(identical(2305843009213693953, 2305843009213693953));
-  Expect.isTrue(identical(2305843009213693954, 2305843009213693954));
-  Expect.isTrue(identical(4611686018427387903, 4611686018427387903));
-
-  // Mints on 64-bit.
-  Expect.isTrue(identical(4611686018427387904, 4611686018427387904));
-  Expect.isTrue(identical(4611686018427387905, 4611686018427387905));
-}
diff --git a/tests/language_2/identity/nan_identical_test.dart b/tests/language_2/identity/nan_identical_test.dart
deleted file mode 100644
index b352f80e73d..00000000000
--- a/tests/language_2/identity/nan_identical_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test a new statement by itself.
-// VMOptions=--optimization-counter-threshold=4 --no-use-osr
-
-// @dart = 2.9
-
-import 'dart:typed_data';
-
-import "package:expect/expect.dart";
-
-double uint64toDouble(int i) {
-  var buffer = new Uint8List(8).buffer;
-  var bdata = new ByteData.view(buffer);
-  bdata.setUint64(0, i);
-  return bdata.getFloat64(0);
-}
-
-double createOtherNAN() {
-  return uint64toDouble((1 << 64) - 2);
-}
-
-main() {
-  var otherNAN = createOtherNAN();
-  for (int i = 0; i < 100; i++) {
-    Expect.isFalse(checkIdentical(double.nan, -double.nan));
-    Expect.isTrue(checkIdentical(double.nan, double.nan));
-    Expect.isTrue(checkIdentical(-double.nan, -double.nan));
-
-    Expect.isFalse(checkIdentical(otherNAN, -otherNAN));
-    Expect.isTrue(checkIdentical(otherNAN, otherNAN));
-    Expect.isTrue(checkIdentical(-otherNAN, -otherNAN));
-
-    var a = otherNAN;
-    var b = double.nan;
-    Expect.isFalse(checkIdentical(a, b));
-    Expect.isFalse(checkIdentical(-a, -b));
-    Expect.isFalse(checkIdentical(-a, b));
-    Expect.isFalse(checkIdentical(a, -b));
-
-    a = -a;
-    Expect.isFalse(checkIdentical(a, b));
-    Expect.isFalse(checkIdentical(-a, -b));
-    Expect.isFalse(checkIdentical(-a, b));
-    Expect.isFalse(checkIdentical(a, -b));
-
-    Expect.isTrue(checkIdentical(-(-a), a));
-    Expect.isTrue(checkIdentical(-(-b), b));
-  }
-}
-
-checkIdentical(a, b) => identical(a, b);
diff --git a/tests/language_2/identity/strict_equal_test.dart b/tests/language_2/identity/strict_equal_test.dart
deleted file mode 100644
index 72f46918d6a..00000000000
--- a/tests/language_2/identity/strict_equal_test.dart
+++ /dev/null
@@ -1,130 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  for (int i = 0; i < 20; i++) {
-    Expect.isFalse(test1(5));
-    Expect.isTrue(test1(3));
-
-    Expect.isTrue(test2(5));
-    Expect.isFalse(test2(3));
-
-    Expect.isTrue(test2r(5));
-    Expect.isFalse(test2r(3));
-
-    Expect.isTrue(test3());
-
-    Expect.equals(2, test4(5));
-    Expect.equals(1, test4(3));
-
-    Expect.equals(1, test5(5));
-    Expect.equals(2, test5(3));
-
-    Expect.equals(1, test6());
-
-    Expect.isFalse(test7());
-    Expect.equals(2, test8());
-
-    Expect.isFalse(test9(2));
-    Expect.isFalse(test9r(2));
-    Expect.isTrue(test9(0));
-    Expect.isTrue(test9r(0));
-
-    Expect.isFalse(test10(0));
-    Expect.isFalse(test10r(0));
-    Expect.isTrue(test10(2));
-    Expect.isTrue(test10r(2));
-
-    test11(i);
-  }
-}
-
-test1(a) {
-  return identical(a, 3);
-}
-
-test2(a) {
-  return !identical(a, 3);
-}
-
-test2r(a) {
-  return !identical(3, a);
-}
-
-test3() {
-  return identical(get5(), 5);
-}
-
-test4(a) {
-  if (identical(a, 3)) {
-    return 1;
-  } else {
-    return 2;
-  }
-}
-
-test5(a) {
-  if (!identical(a, 3)) {
-    return 1;
-  } else {
-    return 2;
-  }
-}
-
-test6() {
-  if (identical(get5(), 5)) {
-    return 1;
-  } else {
-    return 2;
-  }
-}
-
-get5() {
-  return 5;
-}
-
-test7() {
-  return null != null;
-}
-
-test8() {
-  if (null != null) {
-    return 1;
-  } else {
-    return 2;
-  }
-}
-
-test9(a) {
-  return identical(a, 0);
-}
-
-test9r(a) {
-  return identical(0, a);
-}
-
-test10(a) {
-  return !identical(a, 0);
-}
-
-test10r(a) {
-  return !identical(0, a);
-}
-
-test11(a) {
-  if (identical(a, 0)) {
-    Expect.isTrue(identical(0, a));
-    Expect.isFalse(!identical(a, 0));
-    Expect.isFalse(!identical(0, a));
-  } else {
-    Expect.isFalse(identical(0, a));
-    Expect.isTrue(!identical(a, 0));
-    Expect.isTrue(!identical(0, a));
-  }
-}
diff --git a/tests/language_2/if/and_test.dart b/tests/language_2/if/and_test.dart
deleted file mode 100644
index 531e38d3113..00000000000
--- a/tests/language_2/if/and_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// The "if (negative) res2 |= 3" below can be emitted as negative && (res2 |= 3)
-// in JavaScript. Dart2js produced the wrong output.
-
-_shiftRight(x, y) => x;
-int64_bits(x) => x;
-
-class A {
-  opshr(int n, a2) {
-    int res2;
-    bool negative = a2 == 496;
-
-    res2 = _shiftRight(a2, n);
-    if (negative) {
-      res2 |= 3;
-    }
-    return int64_bits(res2);
-  }
-}
-
-main() {
-  var a = new A();
-  var t;
-  for (int i = 0; i < 3; i++) {
-    t = a.opshr(99, 496);
-  }
-  Expect.equals(499, t);
-}
diff --git a/tests/language_2/if/dangling_else_test.dart b/tests/language_2/if/dangling_else_test.dart
deleted file mode 100644
index 921c3b51a27..00000000000
--- a/tests/language_2/if/dangling_else_test.dart
+++ /dev/null
@@ -1,86 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Tests dangling else. The VM should not have any problems, but dart2js or
-// dart2dart could get this wrong.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-nestedIf1(notTrue) {
-  if (notTrue) return 'bad input';
-  if (notTrue) {
-    if (notTrue) {
-      return 'bad';
-    }
-  } else {
-    return 'good';
-  }
-  return 'bug';
-}
-
-nestedIf2(notTrue) {
-  if (notTrue) return 'bad input';
-  if (notTrue) {
-    if (notTrue) {
-      return 'bad';
-    } else {
-      if (notTrue) {
-        return 'bad';
-      }
-    }
-  } else {
-    return 'good';
-  }
-  return 'bug';
-}
-
-nestedWhile(notTrue) {
-  if (notTrue) return 'bad input';
-  if (notTrue) {
-    while (notTrue) {
-      if (notTrue) {
-        return 'bad';
-      }
-    }
-  } else {
-    return 'good';
-  }
-  return 'bug';
-}
-
-nestedFor(notTrue) {
-  if (notTrue) return 'bad input';
-  if (notTrue) {
-    for (int i = 0; i < 3; i++) {
-      if (i == 0) {
-        return 'bad';
-      }
-    }
-  } else {
-    return 'good';
-  }
-  return 'bug';
-}
-
-nestedLabeledStatement(notTrue) {
-  if (notTrue) return 'bad input';
-  if (notTrue) {
-    label:
-    if (notTrue) {
-      break label;
-    }
-  } else {
-    return 'good';
-  }
-  return 'bug';
-}
-
-main() {
-  Expect.equals('good', nestedIf1(false));
-  Expect.equals('good', nestedIf2(false));
-  Expect.equals('good', nestedWhile(false));
-  Expect.equals('good', nestedFor(false));
-  Expect.equals('good', nestedLabeledStatement(false));
-}
diff --git a/tests/language_2/if/if_test.dart b/tests/language_2/if/if_test.dart
deleted file mode 100644
index 5b48a2e18bc..00000000000
--- a/tests/language_2/if/if_test.dart
+++ /dev/null
@@ -1,97 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing if statement.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Helper {
-  static int f0(bool b) {
-    if (b) ;
-    if (b)
-      ;
-    else
-      ;
-    if (b) {}
-    if (b) {} else {}
-    return 0;
-  }
-
-  static int f1(bool b) {
-    if (b)
-      return 1;
-    else
-      return 2;
-  }
-
-  static int f2(bool b) {
-    if (b) {
-      return 1;
-    } else {
-      return 2;
-    }
-  }
-
-  static int f3(bool b) {
-    if (b) return 1;
-    return 2;
-  }
-
-  static int f4(bool b) {
-    if (b) {
-      return 1;
-    }
-    return 2;
-  }
-
-  static int f5(bool b) {
-    if (!b) {
-      return 1;
-    }
-    return 2;
-  }
-
-  static int f6(bool a, bool b) {
-    if (a || b) {
-      return 1;
-    }
-    return 2;
-  }
-
-  static int f7(bool a, bool b) {
-    if (a && b) {
-      return 1;
-    }
-    return 2;
-  }
-}
-
-class IfTest {
-  static testMain() {
-    Expect.equals(0, Helper.f0(true));
-    Expect.equals(1, Helper.f1(true));
-    Expect.equals(2, Helper.f1(false));
-    Expect.equals(1, Helper.f2(true));
-    Expect.equals(2, Helper.f2(false));
-    Expect.equals(1, Helper.f3(true));
-    Expect.equals(2, Helper.f3(false));
-    Expect.equals(1, Helper.f4(true));
-    Expect.equals(2, Helper.f4(false));
-    Expect.equals(2, Helper.f5(true));
-    Expect.equals(1, Helper.f5(false));
-    Expect.equals(1, Helper.f6(true, true));
-    Expect.equals(1, Helper.f6(true, false));
-    Expect.equals(1, Helper.f6(false, true));
-    Expect.equals(2, Helper.f6(false, false));
-    Expect.equals(1, Helper.f7(true, true));
-    Expect.equals(2, Helper.f7(true, false));
-    Expect.equals(2, Helper.f7(false, true));
-    Expect.equals(2, Helper.f7(false, false));
-  }
-}
-
-main() {
-  IfTest.testMain();
-}
diff --git a/tests/language_2/if/nested_if_test.dart b/tests/language_2/if/nested_if_test.dart
deleted file mode 100644
index 3e347e5bb8f..00000000000
--- a/tests/language_2/if/nested_if_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart2Js had problems with nested ifs inside loops.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-foo(x, a) {
-  /*---------------------------------------------*/
-  /*---------------------------------------------*/
-  /*---------------------------------------------*/
-  /*---------------------------------------------*/
-  /*---------------------------------------------*/
-  /*---------------------------------------------*/
-  /*------- Avoid inlining ----------------------*/
-  /*---------------------------------------------*/
-  /*---------------------------------------------*/
-  /*---------------------------------------------*/
-  /*---------------------------------------------*/
-  /*---------------------------------------------*/
-  /*---------------------------------------------*/
-  for (int i = 0; i < 10; i++) {
-    if (x) {
-      if (!x) a = [];
-      a.add(3);
-    }
-  }
-  return a;
-}
-
-main() {
-  var a = foo(true, []);
-  Expect.equals(10, a.length);
-  Expect.equals(3, a[0]);
-}
diff --git a/tests/language_2/if_null/assignment_behavior_runtime_10_test.dart b/tests/language_2/if_null/assignment_behavior_runtime_10_test.dart
deleted file mode 100644
index 00ba8d5e9b9..00000000000
--- a/tests/language_2/if_null/assignment_behavior_runtime_10_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-
-
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-
-
-  { var l; yGetValue = 1; check(1, () => l ??= y, ['y']); Expect.equals(1, l); }
-
-
-
-
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-
-
-
-
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-
-
-
-
-
-
-
-
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-
-
-
-
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-
-
-
-
-
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/if_null/assignment_behavior_runtime_13_test.dart b/tests/language_2/if_null/assignment_behavior_runtime_13_test.dart
deleted file mode 100644
index f46dc5d2af2..00000000000
--- a/tests/language_2/if_null/assignment_behavior_runtime_13_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-
-
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-
-
-
-
-
-
-
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-  C.xGetValue = 1; check(1, () => C.x ??= bad(), ['C.x']);
-
-
-
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-
-
-
-
-
-
-
-
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-
-
-
-
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-
-
-
-
-
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/if_null/assignment_behavior_runtime_14_test.dart b/tests/language_2/if_null/assignment_behavior_runtime_14_test.dart
deleted file mode 100644
index 53939332a71..00000000000
--- a/tests/language_2/if_null/assignment_behavior_runtime_14_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-
-
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-
-
-
-
-
-
-
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-
-  yGetValue = 1; check(1, () => C.x ??= y, ['C.x', 'y', 'C.x=1']);
-
-
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-
-
-
-
-
-
-
-
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-
-
-
-
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-
-
-
-
-
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/if_null/assignment_behavior_runtime_15_test.dart b/tests/language_2/if_null/assignment_behavior_runtime_15_test.dart
deleted file mode 100644
index 89de7c3a013..00000000000
--- a/tests/language_2/if_null/assignment_behavior_runtime_15_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-
-
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-
-
-
-
-
-
-
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-
-
-  h.C.xGetValue = 1; check(1, () => h.C.x ??= bad(), ['h.C.x']);
-
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-
-
-
-
-
-
-
-
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-
-
-
-
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-
-
-
-
-
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/if_null/assignment_behavior_runtime_16_test.dart b/tests/language_2/if_null/assignment_behavior_runtime_16_test.dart
deleted file mode 100644
index e67d1c0245c..00000000000
--- a/tests/language_2/if_null/assignment_behavior_runtime_16_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-
-
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-
-
-
-
-
-
-
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-
-
-
-  yGetValue = 1; check(1, () => h.C.x ??= y, ['h.C.x', 'y', 'h.C.x=1']);
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-
-
-
-
-
-
-
-
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-
-
-
-
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-
-
-
-
-
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/if_null/assignment_behavior_runtime_17_test.dart b/tests/language_2/if_null/assignment_behavior_runtime_17_test.dart
deleted file mode 100644
index 54d92ded68f..00000000000
--- a/tests/language_2/if_null/assignment_behavior_runtime_17_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-
-
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-
-
-
-
-
-
-
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-
-
-
-
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-  xGetValue = new C('x'); xGetValue.vGetValue = 1;
-  check(1, () => x.v ??= bad(), ['x', 'x.v']);
-
-
-
-
-
-
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-
-
-
-
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-
-
-
-
-
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/if_null/assignment_behavior_runtime_18_test.dart b/tests/language_2/if_null/assignment_behavior_runtime_18_test.dart
deleted file mode 100644
index 0d0bae169ab..00000000000
--- a/tests/language_2/if_null/assignment_behavior_runtime_18_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-
-
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-
-
-
-
-
-
-
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-
-
-
-
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-
-
-  xGetValue = new C('x'); yGetValue = 1;
-  check(1, () => x.v ??= y, ['x', 'x.v', 'y', 'x.v=1']);
-
-
-
-
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-
-
-
-
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-
-
-
-
-
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/if_null/assignment_behavior_runtime_19_test.dart b/tests/language_2/if_null/assignment_behavior_runtime_19_test.dart
deleted file mode 100644
index ab7e577ceb2..00000000000
--- a/tests/language_2/if_null/assignment_behavior_runtime_19_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-
-
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-
-
-
-
-
-
-
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-
-
-
-
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-
-
-
-
-  fValue = new C('f()'); fValue.vGetValue = 1;
-  check(1, () => f().v ??= bad(), ['f()', 'f().v']);
-
-
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-
-
-
-
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-
-
-
-
-
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/if_null/assignment_behavior_runtime_1_test.dart b/tests/language_2/if_null/assignment_behavior_runtime_1_test.dart
deleted file mode 100644
index 5714958d30d..00000000000
--- a/tests/language_2/if_null/assignment_behavior_runtime_1_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-    vGetValue = 1; check(1, () => v ??= bad(), ['$s.v']);
-
-
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-
-
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-
-
-
-
-
-
-
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-
-
-
-
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-
-
-
-
-
-
-
-
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-
-
-
-
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-
-
-
-
-
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/if_null/assignment_behavior_runtime_20_test.dart b/tests/language_2/if_null/assignment_behavior_runtime_20_test.dart
deleted file mode 100644
index cec8faaff4c..00000000000
--- a/tests/language_2/if_null/assignment_behavior_runtime_20_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-
-
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-
-
-
-
-
-
-
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-
-
-
-
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-
-
-
-
-
-
-  fValue = new C('f()'); yGetValue = 1;
-  check(1, () => f().v ??= y, ['f()', 'f().v', 'y', 'f().v=1']);
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-
-
-
-
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-
-
-
-
-
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/if_null/assignment_behavior_runtime_21_test.dart b/tests/language_2/if_null/assignment_behavior_runtime_21_test.dart
deleted file mode 100644
index d9c76126e67..00000000000
--- a/tests/language_2/if_null/assignment_behavior_runtime_21_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-
-
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-
-
-
-
-
-
-
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-
-
-
-
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-
-
-
-
-
-
-
-
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-  xGetValue = new C('x'); yGetValue = 1; xGetValue.indexGetValue = 2;
-  check(2, () => x[y] ??= bad(), ['x', 'y', 'x[1]']);
-
-
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-
-
-
-
-
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/if_null/assignment_behavior_runtime_22_test.dart b/tests/language_2/if_null/assignment_behavior_runtime_22_test.dart
deleted file mode 100644
index 48287dba7e8..00000000000
--- a/tests/language_2/if_null/assignment_behavior_runtime_22_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-
-
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-
-
-
-
-
-
-
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-
-
-
-
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-
-
-
-
-
-
-
-
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-
-
-  xGetValue = new C('x'); yGetValue = 1; zGetValue = 2;
-  check(2, () => x[y] ??= z, ['x', 'y', 'x[1]', 'z', 'x[1]=2']);
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-
-
-
-
-
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/if_null/assignment_behavior_runtime_23_test.dart b/tests/language_2/if_null/assignment_behavior_runtime_23_test.dart
deleted file mode 100644
index acc4b164649..00000000000
--- a/tests/language_2/if_null/assignment_behavior_runtime_23_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-
-
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-
-
-
-
-
-
-
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-
-
-
-
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-
-
-
-
-
-
-
-
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-
-
-
-
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-  check(null, () => x?.v ??= bad(), ['x']);
-
-
-
-
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/if_null/assignment_behavior_runtime_24_test.dart b/tests/language_2/if_null/assignment_behavior_runtime_24_test.dart
deleted file mode 100644
index 697e6dea6da..00000000000
--- a/tests/language_2/if_null/assignment_behavior_runtime_24_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-
-
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-
-
-
-
-
-
-
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-
-
-
-
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-
-
-
-
-
-
-
-
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-
-
-
-
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-
-  xGetValue = new C('x'); xGetValue.vGetValue = 1;
-  check(1, () => x?.v ??= bad(), ['x', 'x.v']);
-
-
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/if_null/assignment_behavior_runtime_25_test.dart b/tests/language_2/if_null/assignment_behavior_runtime_25_test.dart
deleted file mode 100644
index ecd8f446046..00000000000
--- a/tests/language_2/if_null/assignment_behavior_runtime_25_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-
-
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-
-
-
-
-
-
-
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-
-
-
-
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-
-
-
-
-
-
-
-
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-
-
-
-
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-
-
-
-  xGetValue = new C('x'); yGetValue = 1;
-  check(1, () => x?.v ??= y, ['x', 'x.v', 'y', 'x.v=1']);
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/if_null/assignment_behavior_runtime_26_test.dart b/tests/language_2/if_null/assignment_behavior_runtime_26_test.dart
deleted file mode 100644
index 707d2fdee58..00000000000
--- a/tests/language_2/if_null/assignment_behavior_runtime_26_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-
-
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-
-
-
-
-
-
-
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-
-
-
-
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-
-
-
-
-
-
-
-
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-
-
-
-
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-
-
-
-
-
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-
-
-
-
-  yGetValue = 1;
-  check(1, () => C?.x ??= y, ['C.x', 'y', 'C.x=1']);
-
-
-}
diff --git a/tests/language_2/if_null/assignment_behavior_runtime_27_test.dart b/tests/language_2/if_null/assignment_behavior_runtime_27_test.dart
deleted file mode 100644
index 2afb861aed2..00000000000
--- a/tests/language_2/if_null/assignment_behavior_runtime_27_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-
-
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-
-
-
-
-
-
-
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-
-
-
-
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-
-
-
-
-
-
-
-
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-
-
-
-
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-
-
-
-
-
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-
-
-
-
-
-
-  yGetValue = 1;
-  check(1, () => h.C?.x ??= y, ['h.C.x', 'y', 'h.C.x=1']);
-}
diff --git a/tests/language_2/if_null/assignment_behavior_runtime_2_test.dart b/tests/language_2/if_null/assignment_behavior_runtime_2_test.dart
deleted file mode 100644
index ed3489a9e60..00000000000
--- a/tests/language_2/if_null/assignment_behavior_runtime_2_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-    yGetValue = 1; check(1, () => v ??= y, ['$s.v', 'y', '$s.v=1']);
-
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-
-
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-
-
-
-
-
-
-
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-
-
-
-
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-
-
-
-
-
-
-
-
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-
-
-
-
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-
-
-
-
-
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/if_null/assignment_behavior_runtime_3_test.dart b/tests/language_2/if_null/assignment_behavior_runtime_3_test.dart
deleted file mode 100644
index 8fe5ecbc3c2..00000000000
--- a/tests/language_2/if_null/assignment_behavior_runtime_3_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-    vGetValue = 1; check(1, () => super.v ??= bad(), ['$s.v']);
-
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-
-
-
-
-
-
-
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-
-
-
-
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-
-
-
-
-
-
-
-
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-
-
-
-
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-
-
-
-
-
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/if_null/assignment_behavior_runtime_4_test.dart b/tests/language_2/if_null/assignment_behavior_runtime_4_test.dart
deleted file mode 100644
index b4aa3da96ea..00000000000
--- a/tests/language_2/if_null/assignment_behavior_runtime_4_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-
-    yGetValue = 1; check(1, () => super.v ??= y, ['$s.v', 'y', '$s.v=1']);
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-
-
-
-
-
-
-
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-
-
-
-
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-
-
-
-
-
-
-
-
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-
-
-
-
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-
-
-
-
-
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/if_null/assignment_behavior_runtime_5_test.dart b/tests/language_2/if_null/assignment_behavior_runtime_5_test.dart
deleted file mode 100644
index 20a0ccc6208..00000000000
--- a/tests/language_2/if_null/assignment_behavior_runtime_5_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-
-
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-  xGetValue = 1; check(1, () => x ??= bad(), ['x']);
-
-
-
-
-
-
-
-
-
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-
-
-
-
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-
-
-
-
-
-
-
-
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-
-
-
-
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-
-
-
-
-
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/if_null/assignment_behavior_runtime_6_test.dart b/tests/language_2/if_null/assignment_behavior_runtime_6_test.dart
deleted file mode 100644
index 9505cd71ce1..00000000000
--- a/tests/language_2/if_null/assignment_behavior_runtime_6_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-
-
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-  yGetValue = 1; check(1, () => x ??= y, ['x', 'y', 'x=1']);
-
-
-
-
-
-
-
-
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-
-
-
-
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-
-
-
-
-
-
-
-
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-
-
-
-
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-
-
-
-
-
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/if_null/assignment_behavior_runtime_7_test.dart b/tests/language_2/if_null/assignment_behavior_runtime_7_test.dart
deleted file mode 100644
index 4ba0c2b251c..00000000000
--- a/tests/language_2/if_null/assignment_behavior_runtime_7_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-
-
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-  h.xGetValue = 1; check(1, () => h.x ??= bad(), ['h.x']);
-
-
-
-
-
-
-
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-
-
-
-
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-
-
-
-
-
-
-
-
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-
-
-
-
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-
-
-
-
-
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/if_null/assignment_behavior_runtime_8_test.dart b/tests/language_2/if_null/assignment_behavior_runtime_8_test.dart
deleted file mode 100644
index 5d0674c7d44..00000000000
--- a/tests/language_2/if_null/assignment_behavior_runtime_8_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-
-
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-  yGetValue = 1; check(1, () => h.x ??= y, ['h.x', 'y', 'h.x=1']);
-
-
-
-
-
-
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-
-
-
-
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-
-
-
-
-
-
-
-
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-
-
-
-
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-
-
-
-
-
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/if_null/assignment_behavior_runtime_9_test.dart b/tests/language_2/if_null/assignment_behavior_runtime_9_test.dart
deleted file mode 100644
index be41efac795..00000000000
--- a/tests/language_2/if_null/assignment_behavior_runtime_9_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-
-
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-
-  { var l = 1; check(1, () => l ??= bad(), []); }
-
-
-
-
-
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-
-
-
-
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-
-
-
-
-
-
-
-
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-
-
-
-
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-
-
-
-
-
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/if_null/assignment_behavior_runtime_test.dart b/tests/language_2/if_null/assignment_behavior_runtime_test.dart
deleted file mode 100644
index 7bdbbcb6e45..00000000000
--- a/tests/language_2/if_null/assignment_behavior_runtime_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-
-
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-
-
-
-
-
-
-
-
-
-
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-
-
-
-
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-
-
-
-
-
-
-
-
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-
-
-
-
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-
-
-
-
-
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/if_null/assignment_behavior_test.dart b/tests/language_2/if_null/assignment_behavior_test.dart
deleted file mode 100644
index 17fe757b8dd..00000000000
--- a/tests/language_2/if_null/assignment_behavior_test.dart
+++ /dev/null
@@ -1,229 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify semantics of the ??= operator, including order of operations, by
-// keeping track of the operations performed.
-
-import "package:expect/expect.dart";
-import "assignment_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-var xGetValue = null;
-
-get x {
-  h.operations.add('x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  h.operations.add('x=$value');
-}
-
-var yGetValue = null;
-
-get y {
-  h.operations.add('y');
-  var tmp = yGetValue;
-  yGetValue = null;
-  return tmp;
-}
-
-void set y(value) {
-  h.operations.add('y=$value');
-}
-
-var zGetValue = null;
-
-get z {
-  h.operations.add('z');
-  var tmp = zGetValue;
-  zGetValue = null;
-  return tmp;
-}
-
-void set z(value) {
-  h.operations.add('z=$value');
-}
-
-var fValue = null;
-
-f() {
-  h.operations.add('f()');
-  var tmp = fValue;
-  fValue = null;
-  return tmp;
-}
-
-void check(expectedValue, f(), expectedOperations) {
-  Expect.equals(expectedValue, f());
-  Expect.listEquals(expectedOperations, h.operations);
-  h.operations = [];
-}
-
-class C {
-  final String s;
-
-  C(this.s);
-
-  @override
-  String toString() => s;
-
-  static var xGetValue = null;
-
-  static get x {
-    h.operations.add('C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    h.operations.add('C.x=$value');
-  }
-
-  var vGetValue = null;
-
-  get v {
-    h.operations.add('$s.v');
-    var tmp = vGetValue;
-    vGetValue = null;
-    return tmp;
-  }
-
-  void set v(value) {
-    h.operations.add('$s.v=$value');
-  }
-
-  var indexGetValue = null;
-
-  operator [](index) {
-    h.operations.add('$s[$index]');
-    var tmp = indexGetValue;
-    indexGetValue = null;
-    return tmp;
-  }
-
-  void operator []=(index, value) {
-    h.operations.add('$s[$index]=$value');
-  }
-
-  final finalOne = 1;
-  final finalNull = null;
-
-  void instanceTest() {
-    // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-    vGetValue = 1; check(1, () => v ??= bad(), ['$s.v']);
-    yGetValue = 1; check(1, () => v ??= y, ['$s.v', 'y', '$s.v=1']);
-    finalOne ??= null;
-//  ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL
-// [cfe] The setter 'finalOne' isn't defined for the class 'C'.
-    yGetValue = 1;
-  }
-}
-
-class D extends C {
-  D(String s) : super(s);
-
-  get v => bad();
-
-  void set v(value) {
-    bad();
-  }
-
-  void derivedInstanceTest() {
-    // super.v ??= e is equivalent to
-    // ((x) => x == null ? super.v = e : x)(super.v)
-    vGetValue = 1; check(1, () => super.v ??= bad(), ['$s.v']);
-    yGetValue = 1; check(1, () => super.v ??= y, ['$s.v', 'y', '$s.v=1']);
-  }
-}
-
-main() {
-  // Make sure the "none" test fails if "??=" is not implemented.  This makes
-  // status files easier to maintain.
-  var _;
-  _ ??= null;
-
-  new C('c').instanceTest();
-  new D('d').derivedInstanceTest();
-
-  // v ??= e is equivalent to ((x) => x == null ? v = e : x)(v)
-  xGetValue = 1; check(1, () => x ??= bad(), ['x']);
-  yGetValue = 1; check(1, () => x ??= y, ['x', 'y', 'x=1']);
-  h.xGetValue = 1; check(1, () => h.x ??= bad(), ['h.x']);
-  yGetValue = 1; check(1, () => h.x ??= y, ['h.x', 'y', 'h.x=1']);
-  { var l = 1; check(1, () => l ??= bad(), []); }
-  { var l; yGetValue = 1; check(1, () => l ??= y, ['y']); Expect.equals(1, l); }
-  { final l = 1; l ??= null; }
-  //             ^
-  // [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_LOCAL
-  // [cfe] Can't assign to the final variable 'l'.
-  C ??= null;
-//^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_TYPE
-// [cfe] Can't assign to a type literal.
-  h ??= null;
-//^
-// [analyzer] COMPILE_TIME_ERROR.PREFIX_IDENTIFIER_NOT_FOLLOWED_BY_DOT
-// [cfe] A prefix can't be used as an expression.
-  h[0] ??= null;
-//^
-// [analyzer] COMPILE_TIME_ERROR.PREFIX_IDENTIFIER_NOT_FOLLOWED_BY_DOT
-// [cfe] A prefix can't be used as an expression.
-
-  // C.v ??= e is equivalent to ((x) => x == null ? C.v = e : x)(C.v)
-  C.xGetValue = 1; check(1, () => C.x ??= bad(), ['C.x']);
-  yGetValue = 1; check(1, () => C.x ??= y, ['C.x', 'y', 'C.x=1']);
-  h.C.xGetValue = 1; check(1, () => h.C.x ??= bad(), ['h.C.x']);
-  yGetValue = 1; check(1, () => h.C.x ??= y, ['h.C.x', 'y', 'h.C.x=1']);
-
-  // e1.v ??= e2 is equivalent to
-  // ((x) => ((y) => y == null ? x.v = e2 : y)(x.v))(e1)
-  xGetValue = new C('x'); xGetValue.vGetValue = 1;
-  check(1, () => x.v ??= bad(), ['x', 'x.v']);
-  xGetValue = new C('x'); yGetValue = 1;
-  check(1, () => x.v ??= y, ['x', 'x.v', 'y', 'x.v=1']);
-  fValue = new C('f()'); fValue.vGetValue = 1;
-  check(1, () => f().v ??= bad(), ['f()', 'f().v']);
-  fValue = new C('f()'); yGetValue = 1;
-  check(1, () => f().v ??= y, ['f()', 'f().v', 'y', 'f().v=1']);
-
-  // e1[e2] ??= e3 is equivalent to
-  // ((a, i) => ((x) => x == null ? a[i] = e3 : x)(a[i]))(e1, e2)
-  xGetValue = new C('x'); yGetValue = 1; xGetValue.indexGetValue = 2;
-  check(2, () => x[y] ??= bad(), ['x', 'y', 'x[1]']);
-  xGetValue = new C('x'); yGetValue = 1; zGetValue = 2;
-  check(2, () => x[y] ??= z, ['x', 'y', 'x[1]', 'z', 'x[1]=2']);
-
-  // e1?.v ??= e2 is equivalent to ((x) => x == null ? null : x.v ??= e2)(e1).
-  check(null, () => x?.v ??= bad(), ['x']);
-  xGetValue = new C('x'); xGetValue.vGetValue = 1;
-  check(1, () => x?.v ??= bad(), ['x', 'x.v']);
-  xGetValue = new C('x'); yGetValue = 1;
-  check(1, () => x?.v ??= y, ['x', 'x.v', 'y', 'x.v=1']);
-
-  // C?.v ??= e2 is equivalent to C.v ??= e2.
-  C.xGetValue = 1;
-  check(1, () => C?.x ??= bad(), ['C.x']);
-  h.C.xgetValue = 1;
-  //  ^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_SETTER
-  // [cfe] Setter not found: 'xgetValue'.
-  check(1, () => h.c?.x ??= bad(), ['h.C.x']);
-  //               ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_PREFIXED_NAME
-  // [cfe] Undefined name 'c'.
-  yGetValue = 1;
-  check(1, () => C?.x ??= y, ['C.x', 'y', 'C.x=1']);
-  yGetValue = 1;
-  check(1, () => h.C?.x ??= y, ['h.C.x', 'y', 'h.C.x=1']);
-}
diff --git a/tests/language_2/if_null/assignment_helper.dart b/tests/language_2/if_null/assignment_helper.dart
deleted file mode 100644
index 281ae52bbfd..00000000000
--- a/tests/language_2/if_null/assignment_helper.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Library used by if_null_assignment_behavior_test.dart, which
-// imports it using the prefix "h.".
-
-library lib;
-
-import "package:expect/expect.dart";
-
-List<String> operations = [];
-
-var xGetValue = null;
-
-get x {
-  operations.add('h.x');
-  var tmp = xGetValue;
-  xGetValue = null;
-  return tmp;
-}
-
-void set x(value) {
-  operations.add('h.x=$value');
-}
-
-class C {
-  static var xGetValue = null;
-
-  static get x {
-    operations.add('h.C.x');
-    var tmp = xGetValue;
-    xGetValue = null;
-    return tmp;
-  }
-
-  static void set x(value) {
-    operations.add('h.C.x=$value');
-  }
-}
diff --git a/tests/language_2/if_null/assignment_static_test.dart b/tests/language_2/if_null/assignment_static_test.dart
deleted file mode 100644
index 020b988607d..00000000000
--- a/tests/language_2/if_null/assignment_static_test.dart
+++ /dev/null
@@ -1,155 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that the static type of a ??= b is the least upper bound of the
-// static types of a and b.
-
-import "package:expect/expect.dart";
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-/// Actually of type B so that the implicit downcasts below succeed at runtime.
-A theA = new B();
-B theB = new B();
-
-class A {
-  String a;
-}
-
-class B extends A {
-  String b;
-}
-
-class C extends A {
-  String c;
-}
-
-A get a => null;
-
-void set a(A value) {}
-
-B get b => null;
-
-void set b(B value) {}
-
-class ClassWithStaticGetters {
-  static A get a => null;
-
-  static void set a(A value) {}
-
-  static B get b => null;
-
-  static void set b(B value) {}
-}
-
-class ClassWithInstanceGetters {
-  A get a => null;
-
-  void set a(A value) {}
-
-  B get b => null;
-
-  void set b(B value) {}
-}
-
-class DerivedClass extends ClassWithInstanceGetters {
-  A get a => bad();
-
-  void set a(A value) {
-    bad();
-  }
-
-  B get b => bad();
-
-  void set b(B value) {
-    bad();
-  }
-
-  void derivedTest() {
-    // The static type of super.v ??= e is the LUB of the static types of
-    // super.v and e.
-    (super.a ??= theA).a; //# 01: ok
-    (super.a ??= theA).b; //# 02: compile-time error
-    (super.a ??= theB).a; //# 03: ok
-    (super.a ??= theB).b; //# 04: compile-time error
-    (super.b ??= theA).a; //# 05: ok
-    (super.b ??= theA).b; //# 06: compile-time error
-
-    // Exactly the same static errors that would be caused by super.v = e
-    // are also generated in the case of super.v ??= e.
-    super.b ??= new C(); //# 07: compile-time error
-  }
-}
-
-main() {
-  new DerivedClass().derivedTest();
-
-  // The static type of v ??= e is the LUB of the static types of v and e.
-  (a ??= theA).a; //# 08: ok
-  (a ??= theA).b; //# 09: compile-time error
-  (a ??= theB).a; //# 10: ok
-  (a ??= theB).b; //# 11: compile-time error
-  (b ??= theA).a; //# 12: ok
-  (b ??= theA).b; //# 13: compile-time error
-
-  // Exactly the same static errors that would be caused by v = e are also
-  // generated in the case of v ??= e.
-  b ??= new C(); //# 14: compile-time error
-
-  // The static type of C.v ??= e is the LUB of the static types of C.v and e.
-  (ClassWithStaticGetters.a ??= theA).a; //# 15: ok
-  (ClassWithStaticGetters.a ??= theA).b; //# 16: compile-time error
-  (ClassWithStaticGetters.a ??= theB).a; //# 17: ok
-  (ClassWithStaticGetters.a ??= theB).b; //# 18: compile-time error
-  (ClassWithStaticGetters.b ??= theA).a; //# 19: ok
-  (ClassWithStaticGetters.b ??= theA).b; //# 20: compile-time error
-
-  // Exactly the same static errors that would be caused by C.v = e are
-  // also generated in the case of C.v ??= e.
-  ClassWithStaticGetters.b ??= new C(); //# 21: compile-time error
-
-  // The static type of e1.v ??= e2 is the LUB of the static types of e1.v and
-  // e2.
-  (new ClassWithInstanceGetters().a ??= theA).a; //# 22: ok
-  (new ClassWithInstanceGetters().a ??= theA).b; //# 23: compile-time error
-  (new ClassWithInstanceGetters().a ??= theB).a; //# 24: ok
-  (new ClassWithInstanceGetters().a ??= theB).b; //# 25: compile-time error
-  (new ClassWithInstanceGetters().b ??= theA).a; //# 26: ok
-  (new ClassWithInstanceGetters().b ??= theA).b; //# 27: compile-time error
-
-  // Exactly the same static errors that would be caused by e1.v = e2 are
-  // also generated in the case of e1.v ??= e2.
-  new ClassWithInstanceGetters().b ??= new C(); //# 28: compile-time error
-
-  // The static type of e1[e2] ??= e3 is the LUB of the static types of e1[e2]
-  // and e3.
-  ((<A>[null])[0] ??= theA).a; //# 29: ok
-  ((<A>[null])[0] ??= theA).b; //# 30: compile-time error
-  ((<A>[null])[0] ??= theB).a; //# 31: ok
-  ((<A>[null])[0] ??= theB).b; //# 32: compile-time error
-  ((<B>[null])[0] ??= theA).a; //# 33: ok
-  ((<B>[null])[0] ??= theA).b; //# 34: compile-time error
-
-  // Exactly the same static errors that would be caused by e1[e2] = e3 are
-  // also generated in the case of e1[e2] ??= e3.
-  (<B>[null])[0] ??= new C(); //# 35: compile-time error
-
-  // The static type of e1?.v op= e2 is the static type of e1.v op e2,
-  // therefore the static type of e1?.v ??= e2 is the static type of
-  // e1.v ?? e2, which is the LUB of the static types of e1?.v and e2.
-  (new ClassWithInstanceGetters()?.a ??= theA).a; //# 36: ok
-  (new ClassWithInstanceGetters()?.a ??= theA).b; //# 37: compile-time error
-  (new ClassWithInstanceGetters()?.a ??= theB).a; //# 38: ok
-  (new ClassWithInstanceGetters()?.a ??= theB).b; //# 39: compile-time error
-  (new ClassWithInstanceGetters()?.b ??= theA).a; //# 40: ok
-  (new ClassWithInstanceGetters()?.b ??= theA).b; //# 41: compile-time error
-
-  // Exactly the same static errors that would be caused by e1.v ??= e2 are
-  // also generated in the case of e1?.v ??= e2.
-  new ClassWithInstanceGetters()?.b ??= new C(); //# 42: compile-time error
-}
diff --git a/tests/language_2/if_null/behavior_test.dart b/tests/language_2/if_null/behavior_test.dart
deleted file mode 100644
index 02422029512..00000000000
--- a/tests/language_2/if_null/behavior_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Evaluation of an if-null expression e of the form e1 ?? e2 is equivalent to
-// the evaluation of the expression ((x) => x == null ? e2 : x)(e1).  The
-// static type of e is the least upper bound of the static type of e1 and the
-// static type of e2.
-
-import "package:expect/expect.dart";
-
-class A {
-  final String a;
-  A(this.a);
-}
-
-class B extends A {
-  B(String v)
-      : b = v,
-        super(v);
-  final String b;
-}
-
-class C extends A {
-  C(String v)
-      : c = v,
-        super(v);
-  final String c;
-}
-
-B nullB() => null;
-C nullC() => null;
-
-main() {
-  Expect.equals(1, 1 ?? 2);
-  Expect.equals(1, 1 ?? null);
-  Expect.equals(2, null ?? 2);
-  Expect.equals(null, null ?? null);
-  Expect.equals('B', (new B('B') ?? new C('C')).a);
-  Expect.equals('B', ((new B('B') ?? new C('C')) as dynamic).b);
-  Expect.throwsNoSuchMethodError(() => ((new B('B') ?? new C('C')) as dynamic).c);
-  Expect.equals('B', (new B('B') ?? nullC()).a);
-  Expect.equals('B', ((new B('B') ?? nullC()) as dynamic).b);
-  Expect.throwsNoSuchMethodError(() => ((new B('B') ?? nullC()) as dynamic).c);
-  Expect.equals('C', (nullB() ?? new C('C')).a);
-  Expect.throwsNoSuchMethodError(() => ((nullB() ?? new C('C')) as dynamic).b);
-  Expect.equals('C', ((nullB() ?? new C('C')) as dynamic).c);
-  Expect.throwsNoSuchMethodError(() => (nullB() ?? nullC()).a);
-  Expect.throwsNoSuchMethodError(() => ((nullB() ?? nullC()) as dynamic).b);
-  Expect.throwsNoSuchMethodError(() => ((nullB() ?? nullC()) as dynamic).c);
-}
diff --git a/tests/language_2/if_null/evaluation_order_test.dart b/tests/language_2/if_null/evaluation_order_test.dart
deleted file mode 100644
index 4d40b885f7a..00000000000
--- a/tests/language_2/if_null/evaluation_order_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Evaluation of an if-null expression e of the form e1 ?? e2 is equivalent to
-// the evaluation of the expression ((x) => x == null ? e2 : x)(e1).
-//
-// Therefore, e1 should be evaluated first; if it is non-null, e2 should not
-// be evaluated.
-
-import "package:expect/expect.dart";
-
-bad() {
-  throw new Exception();
-}
-
-bool firstExecuted = false;
-
-first() {
-  firstExecuted = true;
-  return null;
-}
-
-second() {
-  Expect.isTrue(firstExecuted);
-  return 2;
-}
-
-main() {
-  Expect.equals(1, 1 ?? bad());
-  Expect.equals(2, first() ?? second());
-}
diff --git a/tests/language_2/if_null/precedence_runtime_test.dart b/tests/language_2/if_null/precedence_runtime_test.dart
deleted file mode 100644
index f91ef9bac71..00000000000
--- a/tests/language_2/if_null/precedence_runtime_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify that '??' binds tighter than '?:' and less tightly than '||'.
-
-import "package:expect/expect.dart";
-
-main() {
-  // Make sure the "none" test fails if "??" is not implemented.  This makes
-  // status files easier to maintain.
-  var _ = null ?? null;
-
-  // "a ?? b ?? c" should be legal, and should evaluate to the first non-null
-  // value (or null if there are no non-null values).
-  Expect.equals(1, 1 ?? 2 ?? 3);
-  Expect.equals(2, null ?? 2 ?? 3);
-  Expect.equals(3, null ?? null ?? 3);
-  Expect.equals(null, null ?? null ?? null);
-
-  // "a ?? b ? c : d" should parse as "(a ?? b) ? c : d", therefore provided
-  // that a is true, b need not be a bool.  An incorrect parse of
-  // "a ?? (b ? c : d)" would require b to be a bool to avoid a static type
-  // warning.
-  Expect.equals(2, true ?? 1 ? 2 : 3);
-
-  // "a ?? b || c" should parse as "a ?? (b || c)", therefore it's a static
-  // type warning if b doesn't have type bool.  An incorrect parse of
-  // "(a ?? b) || c" would allow b to have any type provided that a is bool.
-
-
-  // "a || b ?? c" should parse as "(a || b) ?? c", therefore it is a static
-  // type warning if b doesn't have type bool.  An incorrect parse of
-  // "a || (b ?? c)" would allow b to have any type provided that c is bool.
-
-
-  // An incorrect parse of "a || (b ?? c)" would result in no checked-mode
-  // error.
-  Expect.throwsAssertionError(() => false || null ?? true);
-}
diff --git a/tests/language_2/if_null/precedence_test.dart b/tests/language_2/if_null/precedence_test.dart
deleted file mode 100644
index a5b5d162431..00000000000
--- a/tests/language_2/if_null/precedence_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that '??' binds tighter than '?:' and less tightly than '||'.
-
-import "package:expect/expect.dart";
-
-main() {
-  // Make sure the "none" test fails if "??" is not implemented.  This makes
-  // status files easier to maintain.
-  var _ = null ?? null;
-
-  // "a ?? b ?? c" should be legal, and should evaluate to the first non-null
-  // value (or null if there are no non-null values).
-  Expect.equals(1, 1 ?? 2 ?? 3);
-  Expect.equals(2, null ?? 2 ?? 3);
-  Expect.equals(3, null ?? null ?? 3);
-  Expect.equals(null, null ?? null ?? null);
-
-  // "a ?? b ? c : d" should parse as "(a ?? b) ? c : d", therefore provided
-  // that a is true, b need not be a bool.  An incorrect parse of
-  // "a ?? (b ? c : d)" would require b to be a bool to avoid a static type
-  // warning.
-  Expect.equals(2, true ?? 1 ? 2 : 3);
-
-  // "a ?? b || c" should parse as "a ?? (b || c)", therefore it's a static
-  // type warning if b doesn't have type bool.  An incorrect parse of
-  // "(a ?? b) || c" would allow b to have any type provided that a is bool.
-  false ?? 1 || true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.NON_BOOL_OPERAND
-  // [cfe] A value of type 'int' can't be assigned to a variable of type 'bool'.
-
-  // "a || b ?? c" should parse as "(a || b) ?? c", therefore it is a static
-  // type warning if b doesn't have type bool.  An incorrect parse of
-  // "a || (b ?? c)" would allow b to have any type provided that c is bool.
-  false || 1 ?? true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.NON_BOOL_OPERAND
-  // [cfe] A value of type 'int' can't be assigned to a variable of type 'bool'.
-
-  // An incorrect parse of "a || (b ?? c)" would result in no checked-mode
-  // error.
-  Expect.throwsAssertionError(() => false || null ?? true);
-}
diff --git a/tests/language_2/implicit_creation/README.md b/tests/language_2/implicit_creation/README.md
deleted file mode 100644
index 09172264fde..00000000000
--- a/tests/language_2/implicit_creation/README.md
+++ /dev/null
@@ -1,10 +0,0 @@
-# Feature tests for optional const and optional new
-
-This directory was created in order to hold tests pertaining to the
-Dart feature that allows the `new` and `const` keywords on instance
-creation expressions and composite literals (maps and lists) to be
-omitted. For more details, please check the feature specifications
-on
-[optional const](https://github.com/dart-lang/sdk/blob/main/docs/language/informal/optional-const.md)
-and on
-[optional new](https://github.com/dart-lang/sdk/blob/main/docs/language/informal/optional-new.md).
\ No newline at end of file
diff --git a/tests/language_2/implicit_creation/implicit_const_context_constructor_generic_named_test.dart b/tests/language_2/implicit_creation/implicit_const_context_constructor_generic_named_test.dart
deleted file mode 100644
index 82b0151e9bc..00000000000
--- a/tests/language_2/implicit_creation/implicit_const_context_constructor_generic_named_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that constructor invocations are constant
-// when evaluated in a const context.
-
-class C<T> {
-  final T x;
-  const C.named(this.x);
-
-  // Static const.
-  static const staticConst = C<int>.named(42);
-}
-
-// Top-level const.
-const topConst = C<int>.named(42);
-
-main() {
-  const c0 = const C<int>.named(42);  // Explicit const.
-
-  // RHS of const local variable.
-  const c1 = C<int>.named(42);
-
-  // Inside const expression.
-  var c2 = (const [C<int>.named(42)])[0]; // List element.
-  var c3 = (const {C<int>.named(42): 0}).keys.first; // Map key.
-  var c4 = (const {0: C<int>.named(42)}).values.first; // Map value.
-  var c5 = (const C.named(C<int>.named(42))).x; // Constructor argument.
-
-  Expect.identical(c0, c1);
-  Expect.identical(c0, c2);
-  Expect.identical(c0, c3);
-  Expect.identical(c0, c4);
-  Expect.identical(c0, c5);
-  Expect.identical(c0, C.staticConst);
-  Expect.identical(c0, topConst);
-
-  // Switch case expression.
-  switch (c0) {
-    case C<int>.named(42): break;
-    default: Expect.fail("Didn't match constant");
-  }
-
-  // Annotation argument.
-  // (Cannot check that it's const, just that it's accepted).
-  @C.named(C<int>.named(42))
-  var foo = null;
-  foo; // avoid "unused" hints.
-}
diff --git a/tests/language_2/implicit_creation/implicit_const_context_constructor_generic_test.dart b/tests/language_2/implicit_creation/implicit_const_context_constructor_generic_test.dart
deleted file mode 100644
index a23dad535c1..00000000000
--- a/tests/language_2/implicit_creation/implicit_const_context_constructor_generic_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that constructor invocations are constant
-// when evaluated in a const context.
-
-class C<T> {
-  final T x;
-  const C(this.x);
-
-  // Static const.
-  static const staticConst = C<int>(42);
-}
-
-// Top-level const.
-const topConst = C<int>(42);
-
-main() {
-  const c0 = const C<int>(42); // Explicit const.
-
-  // RHS of const local variable.
-  const c1 = C<int>(42);
-
-  // Inside const expression.
-  var c2 = (const [C<int>(42)])[0]; // List element.
-  var c3 = (const {C<int>(42): 0}).keys.first; // Map key.
-  var c4 = (const {0: C<int>(42)}).values.first; // Map value.
-  var c5 = (const C(C<int>(42))).x; // Constructor argument.
-
-  Expect.identical(c0, c1);
-  Expect.identical(c0, c2);
-  Expect.identical(c0, c3);
-  Expect.identical(c0, c4);
-  Expect.identical(c0, c5);
-  Expect.identical(c0, C.staticConst);
-  Expect.identical(c0, topConst);
-
-  // Switch case expression.
-  switch (c0) {
-    case C<int>(42):
-      break;
-    default:
-      Expect.fail("Didn't match constant");
-  }
-
-  // Annotation argument.
-  // (Cannot check that it's const, just that it's accepted).
-  @C(C<int>(42))
-  var foo = null;
-  foo; // avoid "unused" hints.
-}
diff --git a/tests/language_2/implicit_creation/implicit_const_context_constructor_named_test.dart b/tests/language_2/implicit_creation/implicit_const_context_constructor_named_test.dart
deleted file mode 100644
index cf308ef154b..00000000000
--- a/tests/language_2/implicit_creation/implicit_const_context_constructor_named_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that constructor invocations are constant
-// when evaluated in a const context.
-
-class C {
-  final Object x;
-  const C.named(this.x);
-
-  // Static const.
-  static const staticConst = C.named(42);
-}
-
-// Top-level const.
-const topConst = C.named(42);
-
-main() {
-  const c0 = const C.named(42); // Explicit const.
-
-  // RHS of const local variable.
-  const c1 = C.named(42);
-
-  // Inside const expression.
-  var c2 = (const [C.named(42)])[0]; // List element.
-  var c3 = (const {C.named(42): 0}).keys.first; // Map key.
-  var c4 = (const {0: C.named(42)}).values.first; // Map value.
-  var c5 = (const C.named(C.named(42))).x; // Constructor argument.
-
-  Expect.identical(c0, c1);
-  Expect.identical(c0, c2);
-  Expect.identical(c0, c3);
-  Expect.identical(c0, c4);
-  Expect.identical(c0, c5);
-  Expect.identical(c0, C.staticConst);
-  Expect.identical(c0, topConst);
-
-  // Switch case expression.
-  switch (c0) {
-    case C.named(42):
-      break;
-    default:
-      Expect.fail("Didn't match constant");
-  }
-
-  // Annotation argument.
-  // (Cannot check that it's const, just that it's accepted).
-  @C.named(C.named(42))
-  var foo = null;
-  foo; // avoid "unused" hints.
-}
diff --git a/tests/language_2/implicit_creation/implicit_const_context_constructor_test.dart b/tests/language_2/implicit_creation/implicit_const_context_constructor_test.dart
deleted file mode 100644
index a80dcde8675..00000000000
--- a/tests/language_2/implicit_creation/implicit_const_context_constructor_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that constructor invocations are constant
-// when evaluated in a const context.
-
-class C {
-  final Object x;
-  const C(this.x);
-
-  // Static const.
-  static const staticConst = C(42);
-}
-
-// Top-level const.
-const topConst = C(42);
-
-main() {
-  const c0 = const C(42); // Explicit const.
-
-  // RHS of const local variable.
-  const c1 = C(42);
-
-  // Inside const expression.
-  var c2 = (const [C(42)])[0]; // List element.
-  var c3 = (const {C(42): 0}).keys.first; // Map key.
-  var c4 = (const {0: C(42)}).values.first; // Map value.
-  var c5 = (const C(C(42))).x; // Constructor argument.
-
-  Expect.identical(c0, c1);
-  Expect.identical(c0, c2);
-  Expect.identical(c0, c3);
-  Expect.identical(c0, c4);
-  Expect.identical(c0, c5);
-  Expect.identical(c0, C.staticConst);
-  Expect.identical(c0, topConst);
-
-  // Switch case expression.
-  switch (c0) {
-    case C(42):
-      break;
-    default:
-      Expect.fail("Didn't match constant");
-  }
-
-  // Annotation argument.
-  // (Cannot check that it's const, just that it's accepted).
-  @C(C(42))
-  var foo = null;
-  foo; // avoid "unused" hints.
-}
diff --git a/tests/language_2/implicit_creation/implicit_const_context_list_test.dart b/tests/language_2/implicit_creation/implicit_const_context_list_test.dart
deleted file mode 100644
index c8aa9a0d1f1..00000000000
--- a/tests/language_2/implicit_creation/implicit_const_context_list_test.dart
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that list literals are constant when evaluated in a const context.
-
-class C {
-  final Object x;
-  const C(this.x);
-
-  // Static const.
-  static const staticConst = <int>[42];
-}
-
-// Top-level const.
-const topConst = <int>[42];
-
-main() {
-  const c0 = const <int>[42]; // Explicit const.
-
-  // RHS of const local variable.
-  const c1 = <int>[42];
-
-  // Inside const expression.
-  var c2 = (const [
-    <int>[42]
-  ])[0]; // List element.
-  var c3 = (const {
-    <int>[42]: 0
-  })
-      .keys
-      .first; // Map key.
-  var c4 = (const {
-    0: <int>[42]
-  })
-      .values
-      .first; // Map value.
-  var c5 = (const C(<int>[42])).x; // Constructor argument.
-
-  Expect.identical(c0, c1);
-  Expect.identical(c0, c2);
-  Expect.identical(c0, c3);
-  Expect.identical(c0, c4);
-  Expect.identical(c0, c5);
-  Expect.identical(c0, C.staticConst);
-  Expect.identical(c0, topConst);
-
-  // Switch case expression.
-  switch (c0) {
-    case <int>[42]:
-      break;
-    default:
-      Expect.fail("Didn't match constant");
-  }
-
-  // Annotation argument.
-  // (Cannot check that it's const, just that it's accepted).
-  @C(<int>[42])
-  var foo = null;
-  foo; // avoid "unused" hints.
-}
diff --git a/tests/language_2/implicit_creation/implicit_const_context_map_test.dart b/tests/language_2/implicit_creation/implicit_const_context_map_test.dart
deleted file mode 100644
index b9f866855a0..00000000000
--- a/tests/language_2/implicit_creation/implicit_const_context_map_test.dart
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that map literals are constant when evaluated in a const context.
-
-class C {
-  final Object x;
-  const C(this.x);
-
-  // Static const.
-  static const staticConst = <int, int>{37: 87};
-}
-
-// Top-level const.
-const topConst = <int, int>{37: 87};
-
-main() {
-  const c0 = const <int, int>{37: 87}; // Explicit const.
-
-  // RHS of const local variable.
-  const c1 = <int, int>{37: 87};
-
-  // Inside const expression.
-  var c2 = (const [
-    <int, int>{37: 87}
-  ])[0]; // List element.
-  var c3 = (const {
-    <int, int>{37: 87}: 0
-  })
-      .keys
-      .first; // Map key.
-  var c4 = (const {
-    0: <int, int>{37: 87}
-  })
-      .values
-      .first; // Map value.
-  var c5 = (const C(<int, int>{37: 87})).x; // Constructor argument.
-
-  Expect.identical(c0, c1);
-  Expect.identical(c0, c2);
-  Expect.identical(c0, c3);
-  Expect.identical(c0, c4);
-  Expect.identical(c0, c5);
-  Expect.identical(c0, C.staticConst);
-  Expect.identical(c0, topConst);
-
-  // Switch case expression.
-  switch (c0) {
-    case <int, int>{37: 87}:
-      break;
-    default:
-      Expect.fail("Didn't match constant");
-  }
-
-  // Annotation argument.
-  // (Cannot check that it's const, just that it's accepted).
-  @C(<int, int>{37: 87})
-  var foo = null;
-  foo; // avoid "unused" hints.
-}
diff --git a/tests/language_2/implicit_creation/implicit_const_context_not_test.dart b/tests/language_2/implicit_creation/implicit_const_context_not_test.dart
deleted file mode 100644
index 26f72406a9d..00000000000
--- a/tests/language_2/implicit_creation/implicit_const_context_not_test.dart
+++ /dev/null
@@ -1,80 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Check places that are *not* supposed to be constant contexts,
-// but which do require constant values, do not introduce an implicit const.
-// Nested expressions still do.
-// (Also acts as regression test for http:/dartbug.com/36533)
-
-class C {
-  final v;
-
-  // Initializer of final field in class with const constructor.
-  // Can't use `const C()`, it's a cyclic constant dependency.
-  final i1 = []; //# 1: compile-time error
-  final i2 = const [];
-  final i3 = const [[]];
-
-  const C([this.v]);
-
-  // Initializer expression in generative const constructor.
-  const C.c1() : v = C(); //# 2: compile-time error
-  const C.c2() : v = const C();
-  const C.c3() : v = const C(C());
-
-  // Expression in redirecting generative const constructor.
-  const C.r1() : this(C()); //# 3: compile-time error
-  const C.r2() : this(const C());
-  const C.r3() : this(const C(C()));
-
-  // Default value of positional optional parameter.
-  static List<C> foo([
-    p1 = C(), //# 4: compile-time error
-    p2 = const C(),
-    p3 = const C(C()),
-  ]) =>
-      [p2, p3];
-
-  // Default value of named optional parameter.
-  static List<C> bar({
-    p1 = C(), //# 5: compile-time error
-    p2 = const C(),
-    p3 = const C(C()),
-  }) =>
-      [p2, p3];
-}
-
-void main() {
-  var c = const C();
-  var cc = const C(C());
-
-  // Check that const constructors can be invoked without `const`,
-  // creating new instances every time.
-  var nc1 = C();
-  var nc2 = C.c2();
-  var nc3 = C.c3();
-  var nc4 = C.r2();
-  var nc5 = C.r3();
-  Expect.allDistinct([nc1, nc2, nc3, nc4, nc5, c, cc]);
-
-  // Check that const invocations create identical objects.
-  Expect.identical(c, C.c2().v);
-  Expect.identical(cc, C.c3().v);
-
-  Expect.identical(c, C.r2().v);
-  Expect.identical(cc, C.r3().v);
-
-  Expect.identical(const [], C().i2);
-  Expect.identical(const [[]], C().i3);
-
-  Expect.identical(c, C.foo()[0]);
-  Expect.identical(cc, C.foo()[1]);
-
-  Expect.identical(c, C.bar()[0]);
-  Expect.identical(cc, C.bar()[1]);
-}
diff --git a/tests/language_2/implicit_creation/implicit_const_context_prefix_constructor_generic_named_test.dart b/tests/language_2/implicit_creation/implicit_const_context_prefix_constructor_generic_named_test.dart
deleted file mode 100644
index 765272da1d8..00000000000
--- a/tests/language_2/implicit_creation/implicit_const_context_prefix_constructor_generic_named_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "implicit_const_context_prefix_constructor_generic_named_test.dart"
-    as prefix;
-
-// Test that constructor invocations are constant
-// when evaluated in a const context.
-
-class C<T> {
-  final T x;
-  const C.named(this.x);
-
-  // Static const.
-  static const staticConst = prefix.C<int>.named(42);
-}
-
-// Top-level const.
-const topConst = prefix.C<int>.named(42);
-
-main() {
-  const c0 = const prefix.C<int>.named(42);  // Explicit const.
-
-  // RHS of const local variable.
-  const c1 = prefix.C<int>.named(42);
-
-  // Inside const expression.
-  var c2 = (const [prefix.C<int>.named(42)])[0]; // List element.
-  var c3 = (const {prefix.C<int>.named(42): 0}).keys.first; // Map key.
-  var c4 = (const {0: prefix.C<int>.named(42)}).values.first; // Map value.
-  var c5 = (const C.named(prefix.C<int>.named(42))).x; // Constructor argument.
-
-  Expect.identical(c0, c1);
-  Expect.identical(c0, c2);
-  Expect.identical(c0, c3);
-  Expect.identical(c0, c4);
-  Expect.identical(c0, c5);
-  Expect.identical(c0, C.staticConst);
-  Expect.identical(c0, topConst);
-
-  // Switch case expression.
-  switch (c0) {
-    case prefix.C<int>.named(42): break;
-    default: Expect.fail("Didn't match constant");
-  }
-
-  // Annotation argument.
-  // (Cannot check that it's const, just that it's accepted).
-  @C.named(prefix.C<int>.named(42))
-  var foo = null;
-  foo; // avoid "unused" hints.
-}
diff --git a/tests/language_2/implicit_creation/implicit_const_context_prefix_constructor_generic_test.dart b/tests/language_2/implicit_creation/implicit_const_context_prefix_constructor_generic_test.dart
deleted file mode 100644
index b4105a826de..00000000000
--- a/tests/language_2/implicit_creation/implicit_const_context_prefix_constructor_generic_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "implicit_const_context_prefix_constructor_generic_test.dart" as prefix;
-
-// Test that constructor invocations are constant
-// when evaluated in a const context.
-
-class C<T> {
-  final T x;
-  const C(this.x);
-
-  // Static const.
-  static const staticConst = prefix.C<int>(42);
-}
-
-// Top-level const.
-const topConst = prefix.C<int>(42);
-
-main() {
-  const c0 = const prefix.C<int>(42); // Explicit const.
-
-  // RHS of const local variable.
-  const c1 = prefix.C<int>(42);
-
-  // Inside const expression.
-  var c2 = (const [prefix.C<int>(42)])[0]; // List element.
-  var c3 = (const {prefix.C<int>(42): 0}).keys.first; // Map key.
-  var c4 = (const {0: prefix.C<int>(42)}).values.first; // Map value.
-  var c5 = (const C(prefix.C<int>(42))).x; // Constructor argument.
-
-  Expect.identical(c0, c1);
-  Expect.identical(c0, c2);
-  Expect.identical(c0, c3);
-  Expect.identical(c0, c4);
-  Expect.identical(c0, c5);
-  Expect.identical(c0, C.staticConst);
-  Expect.identical(c0, topConst);
-
-  // Switch case expression.
-  switch (c0) {
-    case prefix.C<int>(42):
-      break;
-    default:
-      Expect.fail("Didn't match constant");
-  }
-
-  // Annotation argument.
-  // (Cannot check that it's const, just that it's accepted).
-  @C(prefix.C<int>(42))
-  var foo = null;
-  foo; // avoid "unused" hints.
-}
diff --git a/tests/language_2/implicit_creation/implicit_const_context_prefix_constructor_named_test.dart b/tests/language_2/implicit_creation/implicit_const_context_prefix_constructor_named_test.dart
deleted file mode 100644
index 61d604e02d0..00000000000
--- a/tests/language_2/implicit_creation/implicit_const_context_prefix_constructor_named_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "implicit_const_context_prefix_constructor_named_test.dart" as prefix;
-
-// Test that constructor invocations are constant
-// when evaluated in a const context.
-
-class C {
-  final Object x;
-  const C.named(this.x);
-
-  // Static const.
-  static const staticConst = prefix.C.named(42);
-}
-
-// Top-level const.
-const topConst = prefix.C.named(42);
-
-main() {
-  const c0 = const prefix.C.named(42); // Explicit const.
-
-  // RHS of const local variable.
-  const c1 = prefix.C.named(42);
-
-  // Inside const expression.
-  var c2 = (const [prefix.C.named(42)])[0]; // List element.
-  var c3 = (const {prefix.C.named(42): 0}).keys.first; // Map key.
-  var c4 = (const {0: prefix.C.named(42)}).values.first; // Map value.
-  var c5 = (const C.named(prefix.C.named(42))).x; // Constructor argument.
-
-  Expect.identical(c0, c1);
-  Expect.identical(c0, c2);
-  Expect.identical(c0, c3);
-  Expect.identical(c0, c4);
-  Expect.identical(c0, c5);
-  Expect.identical(c0, C.staticConst);
-  Expect.identical(c0, topConst);
-
-  // Switch case expression.
-  switch (c0) {
-    case prefix.C.named(42):
-      break;
-    default:
-      Expect.fail("Didn't match constant");
-  }
-
-  // Annotation argument.
-  // (Cannot check that it's const, just that it's accepted).
-  @C.named(prefix.C.named(42))
-  var foo = null;
-  foo; // avoid "unused" hints.
-}
diff --git a/tests/language_2/implicit_creation/implicit_const_context_prefix_constructor_test.dart b/tests/language_2/implicit_creation/implicit_const_context_prefix_constructor_test.dart
deleted file mode 100644
index 98b58af56c5..00000000000
--- a/tests/language_2/implicit_creation/implicit_const_context_prefix_constructor_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "implicit_const_context_prefix_constructor_test.dart" as prefix;
-
-// Test that constructor invocations are constant
-// when evaluated in a const context.
-
-class C {
-  final Object x;
-  const C(this.x);
-
-  // Static const.
-  static const staticConst = prefix.C(42);
-}
-
-// Top-level const.
-const topConst = prefix.C(42);
-
-main() {
-  const c0 = const prefix.C(42); // Explicit const.
-
-  // RHS of const local variable.
-  const c1 = prefix.C(42);
-
-  // Inside const expression.
-  var c2 = (const [prefix.C(42)])[0]; // List element.
-  var c3 = (const {prefix.C(42): 0}).keys.first; // Map key.
-  var c4 = (const {0: prefix.C(42)}).values.first; // Map value.
-  var c5 = (const C(prefix.C(42))).x; // Constructor argument.
-
-  Expect.identical(c0, c1);
-  Expect.identical(c0, c2);
-  Expect.identical(c0, c3);
-  Expect.identical(c0, c4);
-  Expect.identical(c0, c5);
-  Expect.identical(c0, C.staticConst);
-  Expect.identical(c0, topConst);
-
-  // Switch case expression.
-  switch (c0) {
-    case prefix.C(42):
-      break;
-    default:
-      Expect.fail("Didn't match constant");
-  }
-
-  // Annotation argument.
-  // (Cannot check that it's const, just that it's accepted).
-  @C(prefix.C(42))
-  var foo = null;
-  foo; // avoid "unused" hints.
-}
diff --git a/tests/language_2/implicit_creation/implicit_const_not_default_values_test.dart b/tests/language_2/implicit_creation/implicit_const_not_default_values_test.dart
deleted file mode 100644
index 77ed9a66d53..00000000000
--- a/tests/language_2/implicit_creation/implicit_const_not_default_values_test.dart
+++ /dev/null
@@ -1,125 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that const/new-insertion does the right thing for default values.
-// A default-value expression does not introduce a const context.
-
-main() {
-  foo();
-  bar();
-  baz();
-  qux();
-  C.foo();
-  C.bar();
-  new C().baz();
-  new C().qux();
-  new C.pos();
-  new C.nam();
-  const C.pos();
-  const C.nam();
-}
-
-// Default arguments must be const to be accepted
-foo([x //
-  = const [C()] //     //# o1: ok
-  = const {42: C()} // //# o2: ok
-  = const C(C()) //    //# o3: ok
-  = [42] //            //# e1: compile-time error
-  = {42: 42} //        //# e2: compile-time error
-  = C([]) //           //# e3: compile-time error
-  ]) {
-}
-
-bar({x //
-  = const [C()] //     //# o4: ok
-  = const {42: C()} // //# o5: ok
-  = const C(C()) //    //# o6: ok
-  = [42] //            //# e4: compile-time error
-  = {42: 42} //        //# e5: compile-time error
-  = C([]) //           //# e6: compile-time error
-  }) {
-}
-
-var baz = ([x
-  = const [C()] //     //# o7: ok
-  = const {42: C()} // //# o8: ok
-  = const C(C()) //    //# o9: ok
-  = [42] //            //# e7: compile-time error
-  = {42: 42} //        //# e8: compile-time error
-  = C([]) //           //# e9: compile-time error
-]) => 42;
-
-var qux = ({x
-  = const [C()] //     //# o10: ok
-  = const {42: C()} // //# o11: ok
-  = const C(C()) //    //# o12: ok
-  = [42] //            //# e10: compile-time error
-  = {42: 42} //        //# e11: compile-time error
-  = C([]) //           //# e12: compile-time error
-}) => 42;
-
-class C {
-  final x;
-  const C([this.x]);
-
-  const C.pos([this.x //
-    = const [C()] //     //# o13: ok
-    = const {42: C()} // //# o14: ok
-    = const C(C()) //    //# o15: ok
-    = [42] //            //# e13: compile-time error
-    = {42: 42} //        //# e14: compile-time error
-    = C([]) //           //# e15: compile-time error
-  ]);
-
-  const C.nam({this.x //
-    = const [C()] //     //# o16: ok
-    = const {42: C()} // //# o17: ok
-    = const C(C()) //    //# o18: ok
-    = [42] //            //# e16: compile-time error
-    = {42: 42} //        //# e17: compile-time error
-    = C([]) //           //# e18: compile-time error
-  });
-
-  static foo([x //
-    = const [C()] //     //# o19: ok
-    = const {42: C()} // //# o20: ok
-    = const C(C()) //    //# o21: ok
-    = [42] //            //# e19: compile-time error
-    = {42: 42} //        //# e20: compile-time error
-    = C([]) //           //# e21: compile-time error
-    ]) {
-  }
-
-  static bar({x //
-    = const [C()] //     //# o22: ok
-    = const {42: C()} // //# o23: ok
-    = const C(C()) //    //# o24: ok
-    = [42] //            //# e22: compile-time error
-    = {42: 42} //        //# e23: compile-time error
-    = C([]) //           //# e24: compile-time error
-    }) {
-  }
-
-  baz([x //
-    = const [C()] //     //# o25: ok
-    = const {42: C()} // //# o26: ok
-    = const C(C()) //    //# o27: ok
-    = [42] //            //# e25: compile-time error
-    = {42: 42} //        //# e26: compile-time error
-    = C([]) //           //# e27: compile-time error
-    ]) {
-  }
-
-  qux({x //
-    = const [C()] //     //# o28: ok
-    = const {42: C()} // //# o29: ok
-    = const C(C()) //    //# o30: ok
-    = [42] //            //# e28: compile-time error
-    = {42: 42} //        //# e29: compile-time error
-    = C([]) //           //# e30: compile-time error
-    }) {
-  }
-}
diff --git a/tests/language_2/implicit_creation/implicit_new_constructor_generic_named_test.dart b/tests/language_2/implicit_creation/implicit_new_constructor_generic_named_test.dart
deleted file mode 100644
index ce3612d4a23..00000000000
--- a/tests/language_2/implicit_creation/implicit_new_constructor_generic_named_test.dart
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that an omitted `new` is allowed for a generic constructor invocation.
-
-class C<T> {
-  final T x;
-  C(this.x);  // Not const constructor.
-  const C.c(this.x);  // Const constructor.
-
-  operator <(other) => this;
-  operator >(other) => other;
-  operator -() => this;
-
-  C<T> get self => this;
-  C<T> method() => self;
-}
-
-T id<T>(T x) => x;
-
-main() {
-  const cc = const C<int>.c(42); // Canonicalized.
-  var x = 42; // Avoid constant parameter for constant constructor.
-  var c0 = new C<int>.c(x);  // Original syntax.
-
-  // Uses of `C<int>.c(x)` in various contexts.
-  var c1 = C<int>.c(x);
-  var c2 = [C<int>.c(x)][0];
-  var c3 = {C<int>.c(x): 0}.keys.first;
-  var c4 = {0: C<int>.c(x)}.values.first;
-  var c5 = id(C<int>.c(x));
-  var c6 = C<int>.c(x).self;
-  var c7 = C<int>.c(x).method();
-  var c8 = C(C<int>.c(x)).x;
-  var c9 = -C<int>.c(x);
-  var c10 = C<int>.c(x) < 9;
-  var c11 = C(null) > C<int>.c(x);
-  var c12 = (c10 == c11) ? null : C<int>.c(x);
-  var c13 = C<int>.c(x)..method();
-  var c14;
-  try {
-    throw C<int>.c(x);
-  } catch (e) {
-    c14 = e;
-  }
-
-  switch (C<int>.c(x)) {
-    case cc:
-      Expect.fail("Should not be const");
-      break;
-    default:
-      // Success.
-  }
-
-  for (C<int>.c(x); false; C<int>.c(x), C<int>.c(x)) {
-    Expect.fail("Unreachable");
-  }
-
-  var values =
-      [cc, c0, c1, c2, c3, c4, c5, c6, c7, c8, c9, c10, c11, c12, c13, c14];
-  Expect.allDistinct(values); // Non of them create constants.
-  for (var value in values) {
-    Expect.isTrue(value is C<int>);
-    Expect.equals(42, (value as C<int>).x);
-  }
-}
diff --git a/tests/language_2/implicit_creation/implicit_new_constructor_generic_test.dart b/tests/language_2/implicit_creation/implicit_new_constructor_generic_test.dart
deleted file mode 100644
index c53178a3a46..00000000000
--- a/tests/language_2/implicit_creation/implicit_new_constructor_generic_test.dart
+++ /dev/null
@@ -1,87 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that an omitted `new` is allowed for a generic constructor invocation.
-
-class C<T> {
-  final T x;
-  C(this.x); // Not const constructor.
-  const C.c(this.x); // Const constructor.
-
-  operator <(other) => this;
-  operator >(other) => other;
-  operator -() => this;
-
-  C<T> get self => this;
-  C<T> method() => self;
-}
-
-T id<T>(T x) => x;
-
-main() {
-  const cc = const C<int>.c(42); // Canonicalized.
-
-  var c0 = new C<int>(42); // Original syntax.
-
-  // Uses of `C<int>(42)` in various contexts.
-  var c1 = C<int>(42);
-  var c2 = [C<int>(42)][0];
-  var c3 = {C<int>(42): 0}.keys.first;
-  var c4 = {0: C<int>(42)}.values.first;
-  var c5 = id(C<int>(42));
-  var c6 = C<int>(42).self;
-  var c7 = C<int>(42).method();
-  var c8 = C(C<int>(42)).x;
-  var c9 = -C<int>(42);
-  var c10 = C<int>(42) < 9;
-  var c11 = C(null) > C<int>(42);
-  var c12 = (c10 == c11) ? null : C<int>(42);
-  var c13 = C<int>(42)..method();
-  var c14;
-  try {
-    throw C<int>(42);
-  } catch (e) {
-    c14 = e;
-  }
-
-  switch (C<int>(42)) {
-    case cc:
-      Expect.fail("Should not be const");
-      break;
-    default:
-    // Success.
-  }
-
-  for (C<int>(42); false; C<int>(42), C<int>(42)) {
-    Expect.fail("Unreachable");
-  }
-
-  var values = [
-    cc,
-    c0,
-    c1,
-    c2,
-    c3,
-    c4,
-    c5,
-    c6,
-    c7,
-    c8,
-    c9,
-    c10,
-    c11,
-    c12,
-    c13,
-    c14
-  ];
-  Expect.allDistinct(values); // Non of them create constants.
-  for (var value in values) {
-    Expect.isTrue(value is C<int>);
-    Expect.equals(42, (value as C<int>).x);
-  }
-}
diff --git a/tests/language_2/implicit_creation/implicit_new_constructor_named_test.dart b/tests/language_2/implicit_creation/implicit_new_constructor_named_test.dart
deleted file mode 100644
index a8a4f1481c5..00000000000
--- a/tests/language_2/implicit_creation/implicit_new_constructor_named_test.dart
+++ /dev/null
@@ -1,88 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that an omitted `new` is allowed for a non-generic class.
-
-class C {
-  final Object x;
-  C(this.x); // Not const constructor.
-  const C.c(this.x); // Const constructor.
-
-  operator <(other) => this;
-  operator >(other) => other;
-  operator -() => this;
-
-  C get self => this;
-  C method() => self;
-}
-
-T id<T>(T x) => x;
-
-main() {
-  const cc = const C.c(42); // Canonicalized.
-  var x = 42; // Avoid constant parameter.
-  var c0 = new C.c(x); // Original syntax.
-
-  // Uses of `C.c(x)` in various contexts.
-  var c1 = C.c(x);
-  var c2 = [C.c(x)][0];
-  var c3 = {C.c(x): 0}.keys.first;
-  var c4 = {0: C.c(x)}.values.first;
-  var c5 = id(C.c(x));
-  var c6 = C.c(x).self;
-  var c7 = C.c(x).method();
-  var c8 = C(C.c(x)).x;
-  var c9 = -C.c(x);
-  var c10 = C.c(x) < 9;
-  var c11 = C(null) > C.c(x);
-  var c12 = (c10 == c11) ? null : C.c(x);
-  var c13 = C.c(x)..method();
-  var c14;
-  try {
-    throw C.c(x);
-  } catch (e) {
-    c14 = e;
-  }
-  Expect.isNotNull(c12);
-
-  switch (C.c(x)) {
-    case cc:
-      Expect.fail("Should not be const");
-      break;
-    default:
-    // Success.
-  }
-
-  for (C.c(x); false; C.c(x), C.c(x)) {
-    Expect.fail("Unreachable");
-  }
-
-  var values = [
-    cc,
-    c0,
-    c1,
-    c2,
-    c3,
-    c4,
-    c5,
-    c6,
-    c7,
-    c8,
-    c9,
-    c10,
-    c11,
-    c12,
-    c13,
-    c14
-  ];
-  Expect.allDistinct(values); // Non of them create constants.
-  for (var value in values) {
-    Expect.isTrue(value is C);
-    Expect.equals(42, (value as C).x);
-  }
-}
diff --git a/tests/language_2/implicit_creation/implicit_new_constructor_test.dart b/tests/language_2/implicit_creation/implicit_new_constructor_test.dart
deleted file mode 100644
index 88899b9b5a5..00000000000
--- a/tests/language_2/implicit_creation/implicit_new_constructor_test.dart
+++ /dev/null
@@ -1,151 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that an omitted `new` is allowed for a non-generic class.
-
-class C {
-  final Object x;
-  C(this.x); // Not const constructor.
-  const C.c(this.x); // Const constructor.
-
-  operator <(other) => this;
-  operator >(other) => other;
-  operator -() => this;
-
-  C get self => this;
-  C method() => self;
-}
-
-T id<T>(T x) => x;
-
-main() {
-  const cc = const C.c(42); // Canonicalized.
-
-  var c0 = new C(42); // Original syntax.
-
-  // Uses of `C(42)` in various contexts.
-  var c1 = C(42);
-  var c2 = [C(42)][0];
-  var c3 = {C(42): 0}.keys.first;
-  var c4 = {0: C(42)}.values.first;
-  var c5 = id(C(42));
-  var c6 = C(42).self;
-  var c7 = C(42).method();
-  var c8 = C(C(42)).x;
-  var c9 = -C(42);
-  var c10 = C(42) < 9;
-  var c11 = C(null) > C(42);
-  var c12 = (c10 == c11) ? null : C(42);
-  var c13 = C(42)..method();
-  var c14;
-  try {
-    throw C(42);
-  } catch (e) {
-    c14 = e;
-  }
-
-  switch (C(42)) {
-    case cc:
-      Expect.fail("Should not be const");
-      break;
-    default:
-    // Success.
-  }
-
-  for (C(42); false; C(42), C(42)) {
-    Expect.fail("Unreachable");
-  }
-
-  var values = [
-    cc,
-    c0,
-    c1,
-    c2,
-    c3,
-    c4,
-    c5,
-    c6,
-    c7,
-    c8,
-    c9,
-    c10,
-    c11,
-    c12,
-    c13,
-    c14
-  ];
-  Expect.allDistinct(values); // Non of them create constants.
-  for (var value in values) {
-    Expect.isTrue(value is C);
-    Expect.equals(42, (value as C).x);
-  }
-}
-
-void testNamed() {
-  const cc = const C.c(42); // Canonicalized.
-  var x = 42; // Avoid constant parameter.
-  var c0 = new C.c(x); // Original syntax.
-
-  // Uses of `C.c(x)` in various contexts.
-  var c1 = C.c(x);
-  var c2 = [C.c(x)][0];
-  var c3 = {C.c(x): 0}.keys.first;
-  var c4 = {0: C.c(x)}.values.first;
-  var c5 = id(C.c(x));
-  var c6 = C.c(x).self;
-  var c7 = C.c(x).method();
-  var c8 = C(C.c(x)).x;
-  var c9 = -C.c(x);
-  var c10 = C.c(x) < 9;
-  var c11 = C(null) > C.c(x);
-  var c12 = (c10 == c11) ? null : C.c(x);
-  var c13 = C.c(x)..method();
-  var c14;
-  try {
-    throw C.c(x);
-  } catch (e) {
-    c14 = e;
-  }
-  Expect.isNotNull(c12);
-
-  switch (C.c(x)) {
-    case cc:
-      Expect.fail("Should not be const");
-      break;
-    default:
-    // Success.
-  }
-
-  for (C.c(x); false; C.c(x), C.c(x)) {
-    Expect.fail("Unreachable");
-  }
-
-  var values = [
-    cc,
-    c0,
-    c1,
-    c2,
-    c3,
-    c4,
-    c5,
-    c6,
-    c7,
-    c8,
-    c9,
-    c10,
-    c11,
-    c12,
-    c13,
-    c14
-  ];
-  Expect.allDistinct(values); // Non of them create constants.
-  for (var value in values) {
-    Expect.isTrue(value is C);
-    Expect.equals(42, (value as C).x);
-  }
-}
diff --git a/tests/language_2/implicit_creation/implicit_new_or_const_composite_test.dart b/tests/language_2/implicit_creation/implicit_new_or_const_composite_test.dart
deleted file mode 100644
index 47613fbf981..00000000000
--- a/tests/language_2/implicit_creation/implicit_new_or_const_composite_test.dart
+++ /dev/null
@@ -1,230 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Tests that new-insertion always inserts `new` when not in const context,
-// no matter what the arguments are.
-// There is (currently) no automatic const insertion in non-const context.
-//
-// Not testing inference, so all type arguments are explicit.
-
-main() {
-  var x = 42;
-  const cc42 = const C(42);
-  var c42 = cc42;
-
-  const clist = const <int>[37];
-  var list = clist;
-  const cmap = const <int, int>{19: 87};
-  var map = cmap;
-
-  {
-    // Constructor inside constructor.
-    var d42 = const D<int>(42);
-
-    const cd1 = const C(const D<int>(42));
-    const cd2 = C(D<int>(42)); // Const context.
-    var cd3 = C(D<int>(42)); // Non-constant context, so `new`.
-    var cd4 = C(D<int>(x)); // Non-constant context, so `new`.
-    var cd5 = C(d42); // Non-constant context, so `new`.
-
-    Expect.identical(cd1, cd2);
-    Expect.allDistinct([cd1, cd3, cd4, cd5]);
-  }
-
-  {
-    // List inside other constructor
-    const cl1 = const C(const <int>[37]);
-    const cl2 = C(clist); // Constant context.
-    const cl3 = C(const <int>[37]); // Constant context.
-    const cl4 = C(<int>[37]); // Constant context.
-    var cl5 = C(clist); // Non-constant context, so `new`.
-    var cl6 = C(const <int>[37]); // Non-constant context, so `new`.
-    var cl7 = C(list); // Non-constant context, so `new`.
-    var cl8 = C(<int>[37]); // Non-constant context, so `new`.
-
-    Expect.allIdentical([cl1, cl2, cl3, cl4]);
-    Expect.allDistinct([cl1, cl5, cl6, cl7, cl8]);
-  }
-
-  {
-    // Map inside other constructor.
-    const cm1 = C(cmap); // Constant context.
-    const cm2 = C(const <int, int>{19: 87}); // Constant context.
-    const cm3 = C(<int, int>{19: 87}); // Constant context.
-    var cm4 = C(cmap); // Non-constant context, so `new`.
-    var cm5 = C(const <int, int>{19: 87}); // Non-constant context, so `new`.
-    var cm6 = C(map); // Non-constant context, so `new`.
-    var cm7 = C(<int, int>{19: 87}); // Non-constant context, so `new`.
-
-    Expect.identical(cm1, cm2);
-    Expect.identical(cm1, cm3);
-    Expect.allDistinct([cm1, cm4, cm5, cm6, cm7]);
-  }
-
-  {
-    // Composite with more than one sub-expression.
-    const n1 = N(clist, cmap);
-    const n2 = N(const <int>[37], const <int, int>{19: 87});
-    const n3 = N(<int>[37], <int, int>{19: 87});
-    var n4 = N(const <int>[37], const <int, int>{19: 87});
-    var n5 = N(<int>[37], const <int, int>{19: 87});
-    var n6 = N(const <int>[37], <int, int>{19: 87});
-    var n7 = N(<int>[37], <int, int>{19: 87});
-    var n8 = N(clist, cmap);
-    var n9 = N(<int>[37], cmap);
-    var n10 = N(clist, <int, int>{19: 87});
-    var n11 = N(<int>[37], <int, int>{19: 87});
-    var n12 = N(list, cmap);
-    var n13 = N(clist, map);
-    var n14 = N(list, map);
-
-    Expect.identical(n1, n2);
-    Expect.identical(n1, n3);
-    Expect.allDistinct([n1, n4, n5, n6, n7, n8, n9, n10, n11, n12, n13, n14]);
-
-    Expect
-        .allIdentical([clist, n6.left, n10.left, n12.left, n13.left, n14.left]);
-    Expect.allDistinct([n5.left, n7.left, n9.left, n11.left]);
-
-    Expect.allIdentical(
-        [cmap, n5.right, n9.right, n12.right, n13.right, n14.right]);
-    Expect.allDistinct([n6.right, n7.right, n10.right, n11.right]);
-
-    const n20 = const N(const C(42), const <int>[37]);
-    const n21 = N(const C(42), const <int>[37]);
-    const n22 = N(C(42), const <int>[37]);
-    const n23 = N(C(42), clist);
-    const n24 = N(C(42), <int>[37]);
-    var n25 = N(const C(42), const <int>[37]);
-    var n26 = N(C(42), const <int>[37]);
-    var n27 = N(C(42), clist);
-    var n28 = N(C(42), <int>[37]);
-    var n29 = N(C(42), list);
-    var n30 = N(c42, clist);
-    var n31 = N(cc42, list);
-
-    Expect.allIdentical([n20, n21, n22, n23, n24]);
-    Expect.allDistinct([n20, n25, n26, n27, n28, n29, n30, n31]);
-
-    Expect.allDistinct([cc42, n28.left, n29.left]);
-    Expect.identical(cc42, n30.left);
-    Expect.identical(cc42, n31.left);
-    Expect.allIdentical([clist, n29.right, n30.right, n31.right]);
-    Expect.notIdentical(clist, n28.right);
-  }
-
-  {
-    // List literals.
-    const l20 = const [
-      const C(42),
-      const <int>[37]
-    ];
-    const l21 = [
-      const C(42),
-      const <int>[37]
-    ];
-    const l22 = [
-      C(42),
-      const <int>[37]
-    ];
-    var l23 = const [C(42), clist];
-    const l24 = [
-      C(42),
-      <int>[37]
-    ];
-    var l25 = [
-      const C(42),
-      const <int>[37]
-    ];
-    var l26 = [
-      C(42),
-      const <int>[37]
-    ];
-    var l27 = [C(42), clist];
-    var l28 = [
-      C(42),
-      <int>[37]
-    ];
-    var l29 = [C(42), list];
-    var l30 = [c42, clist];
-    var l31 = [cc42, list];
-
-    Expect.allIdentical([l20, l21, l22, l23, l24]);
-    // List literals are never const unless in const context.
-    Expect.allDistinct([l20, l25, l26, l27, l28, l29, l30, l31]);
-    Expect.allIdentical([cc42, l25[0], l30[0], l31[0]]);
-    Expect.allDistinct([cc42, l26[0], l27[0], l28[0], l29[0]]);
-    Expect
-        .allIdentical([clist, l25[1], l26[1], l27[1], l29[1], l30[1], l31[1]]);
-    Expect.notIdentical(clist, l28[1]);
-  }
-
-  {
-    // Map literals.
-    const m20 = const <C, List<int>>{
-      const C(42): const <int>[37]
-    };
-    const m21 = {
-      const C(42): const <int>[37]
-    };
-    const m22 = {
-      C(42): const <int>[37]
-    };
-    var m23 = const {C(42): clist};
-    const m24 = {
-      C(42): <int>[37]
-    };
-    var m25 = {
-      const C(42): const <int>[37]
-    };
-    var m26 = {
-      C(42): const <int>[37]
-    };
-    var m27 = {C(42): clist};
-    var m28 = {
-      C(42): <int>[37]
-    };
-    var m29 = {C(42): list};
-    var m30 = {c42: clist};
-    var m31 = {cc42: list};
-
-    Expect.allIdentical([m20, m21, m22, m23, m24]);
-    // Map literals are never const unless in const context.
-    Expect.allDistinct([m20, m25, m26, m27, m28, m29, m30, m31]);
-    Expect.identical(cc42, m25.keys.first);
-    Expect.allDistinct(
-        [cc42, m26.keys.first, m27.keys.first, m28.keys.first, m29.keys.first]);
-    Expect.identical(cc42, m30.keys.first);
-    Expect.identical(cc42, m31.keys.first);
-    Expect.allIdentical([
-      clist,
-      m25.values.first,
-      m26.values.first,
-      m27.values.first,
-      m29.values.first,
-      m30.values.first,
-      m31.values.first
-    ]);
-    Expect.notIdentical(clist, m28.values.first);
-  }
-}
-
-class C {
-  final Object x;
-  const C(this.x);
-}
-
-class D<T> {
-  final T x;
-  const D(this.x);
-}
-
-class N {
-  final Object left, right;
-  const N(this.left, this.right);
-}
diff --git a/tests/language_2/implicit_creation/implicit_new_or_const_generic_test.dart b/tests/language_2/implicit_creation/implicit_new_or_const_generic_test.dart
deleted file mode 100644
index 1215efcdd6b..00000000000
--- a/tests/language_2/implicit_creation/implicit_new_or_const_generic_test.dart
+++ /dev/null
@@ -1,117 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "implicit_new_or_const_generic_test.dart" as prefix;
-
-// Test that const constructors with const arguments do not become const
-// if not in a const context.
-
-// This test uses a generic class constructor with no prefix,
-// which requires new Dart 2 syntax.
-
-main() {
-  // Various valid object creation expressions.
-  var x = 42; // non constant variable.
-
-  // Various valid object creation expressions of a generic constructor.
-  // (Requires inference to infer `<int>` for the invocations of `D`.)
-  var instances = <Object>[
-    new D(x),
-    new D(42),
-    const D(42),
-    D(x),
-    D(42),
-    new D.named(x),
-    new D.named(42),
-    const D.named(42),
-    D.named(x),
-    D.named(42),
-    new prefix.D(x),
-    new prefix.D(42),
-    const prefix.D(42),
-    prefix.D(x),
-    prefix.D(42),
-    new prefix.D.named(x),
-    new prefix.D.named(42),
-    const prefix.D.named(42),
-    prefix.D.named(x),
-    prefix.D.named(42),
-    new D<int>(x),
-    new D<int>(42),
-    const D<int>(42),
-    D<int>(x),
-    D<int>(42),
-    new D<int>.named(x),
-    new D<int>.named(42),
-    const D<int>.named(42),
-    D<int>.named(x),
-    D<int>.named(42),
-    new prefix.D<int>(x),
-    new prefix.D<int>(42),
-    const prefix.D<int>(42),
-    prefix.D<int>(x),
-    prefix.D<int>(42),
-    new prefix.D<int>.named(x),
-    new prefix.D<int>.named(42),
-    const prefix.D<int>.named(42),
-    prefix.D<int>.named(x),
-    prefix.D<int>.named(42),
-  ];
-
-  const d42 = const D<int>(42);
-  for (var i = 0; i < instances.length; i++) {
-    var d = instances[i];
-    Expect.equals(d42, d);
-    if (i % 5 == 2) {
-      // The cases of D(42) without "new" are all constant.
-      Expect.identical(d42, d, "$i");
-    } else {
-      // The rest are not.
-      Expect.notIdentical(d42, d, "$i");
-    }
-  }
-
-  // Test instance creation with type parameters.
-  new G<int>().testWithInt();
-}
-
-class D<T> {
-  final T x;
-
-  const D(this.x);
-  const D.named(this.x);
-
-  int get hashCode => x.hashCode;
-  bool operator ==(Object other) => other is D<Object> && x == other.x;
-}
-
-class G<T> {
-  // Tests creation of D<T> where T is a type variable.
-  void testWithInt() {
-    // Cannot create constants referencing T or x.
-    var instances = [
-      new D<T>(null),
-      D<T>(null),
-      new D<T>.named(null),
-      D<T>.named(null),
-      new prefix.D<T>(null),
-      prefix.D<T>(null),
-      new prefix.D<T>.named(null),
-      prefix.D<T>.named(null),
-    ];
-
-    const dx = const D<int>(null);
-    Expect.allDistinct([dx]..addAll(instances));
-    for (var i = 0; i < instances.length; i++) {
-      var d = instances[i];
-      Expect.isTrue(d is D<T>);
-      Expect.isTrue(d is! D<Null>);
-      Expect.equals(dx, d, "$i");
-    }
-  }
-}
diff --git a/tests/language_2/implicit_creation/implicit_new_or_const_test.dart b/tests/language_2/implicit_creation/implicit_new_or_const_test.dart
deleted file mode 100644
index aaef189b410..00000000000
--- a/tests/language_2/implicit_creation/implicit_new_or_const_test.dart
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "implicit_new_or_const_test.dart" as prefix;
-
-// Test that const constructors with const arguments do not become const
-// if not in a const context.
-
-main() {
-  // Various valid object creation expressions.
-  var x = 42; // non constant variable.
-
-  var instances = <Object>[
-    new C(x),
-    new C(42),
-    const C(42),
-    C(x),
-    C(42),
-    new C.named(x),
-    new C.named(42),
-    const C.named(42),
-    C.named(x),
-    C.named(42),
-    new prefix.C(x),
-    new prefix.C(42),
-    const prefix.C(42),
-    prefix.C(x),
-    prefix.C(42),
-    new prefix.C.named(x),
-    new prefix.C.named(42),
-    const prefix.C.named(42),
-    prefix.C.named(x),
-    prefix.C.named(42),
-  ];
-
-  // Test that the correct ones are constant, and the rest are not.
-  const c42 = const C(42); // Reference constant.
-
-  for (var i = 0; i < instances.length; i++) {
-    var c = instances[i];
-    Expect.equals(c42, c);
-    if (i % 5 == 2) {
-      Expect.identical(c42, c, "$i");
-    } else {
-      Expect.notIdentical(c42, c, "$i");
-    }
-  }
-}
-
-class C {
-  final Object x;
-
-  const C(this.x);
-  const C.named(this.x);
-
-  int get hashCode => x.hashCode;
-  bool operator ==(Object other) => other is C && x == other.x;
-}
diff --git a/tests/language_2/implicit_creation/implicit_new_prefix_constructor_generic_named_test.dart b/tests/language_2/implicit_creation/implicit_new_prefix_constructor_generic_named_test.dart
deleted file mode 100644
index d9cc0ad5fc5..00000000000
--- a/tests/language_2/implicit_creation/implicit_new_prefix_constructor_generic_named_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "implicit_new_prefix_constructor_generic_named_test.dart" as prefix;
-
-// Test that an omitted `new` is allowed for a generic constructor invocation.
-
-class C<T> {
-  final T x;
-  C(this.x);  // Not const constructor.
-  const C.c(this.x);  // Const constructor.
-
-  operator <(other) => this;
-  operator >(other) => other;
-  operator -() => this;
-
-  C<T> get self => this;
-  C<T> method() => self;
-}
-
-T id<T>(T x) => x;
-
-main() {
-  const cc = const C<int>.c(42); // Canonicalized.
-  var x = 42; // Avoid constant parameter.
-  var c0 = new prefix.C<int>.c(x);  // Original syntax.
-
-  // Uses of `prefix.C<int>.c(x)` in various contexts.
-  var c1 = prefix.C<int>.c(x);
-  var c2 = [prefix.C<int>.c(x)][0];
-  var c3 = {prefix.C<int>.c(x): 0}.keys.first;
-  var c4 = {0: prefix.C<int>.c(x)}.values.first;
-  var c5 = id(prefix.C<int>.c(x));
-  var c6 = prefix.C<int>.c(x).self;
-  var c7 = prefix.C<int>.c(x).method();
-  var c8 = C(prefix.C<int>.c(x)).x;
-  var c9 = -prefix.C<int>.c(x);
-  var c10 = prefix.C<int>.c(x) < 9;
-  var c11 = C(null) > prefix.C<int>.c(x);
-  var c12 = (c10 == c11) ? null : prefix.C<int>.c(x);
-  var c13 = prefix.C<int>.c(x)..method();
-  var c14;
-  try {
-    throw prefix.C<int>.c(x);
-  } catch (e) {
-    c14 = e;
-  }
-
-  switch (prefix.C<int>.c(x)) {
-    case cc:
-      Expect.fail("Should not be const");
-      break;
-    default:
-      // Success.
-  }
-
-  for (prefix.C<int>.c(x); false; prefix.C<int>.c(x), prefix.C<int>.c(x)) {
-    Expect.fail("Unreachable");
-  }
-
-  var values =
-      [cc, c0, c1, c2, c3, c4, c5, c6, c7, c8, c9, c10, c11, c12, c13, c14];
-  Expect.allDistinct(values); // Non of them create constants.
-  for (var value in values) {
-    Expect.isTrue(value is C<int>);
-    Expect.equals(42, (value as C<int>).x);
-  }
-}
diff --git a/tests/language_2/implicit_creation/implicit_new_prefix_constructor_generic_test.dart b/tests/language_2/implicit_creation/implicit_new_prefix_constructor_generic_test.dart
deleted file mode 100644
index 6fa68b30234..00000000000
--- a/tests/language_2/implicit_creation/implicit_new_prefix_constructor_generic_test.dart
+++ /dev/null
@@ -1,89 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "implicit_new_prefix_constructor_generic_test.dart" as prefix;
-
-// Test that an omitted `new` is allowed for a generic constructor invocation.
-
-class C<T> {
-  final T x;
-  C(this.x); // Not const constructor.
-  const C.c(this.x); // Const constructor.
-
-  operator <(other) => this;
-  operator >(other) => other;
-  operator -() => this;
-
-  C<T> get self => this;
-  C<T> method() => self;
-}
-
-T id<T>(T x) => x;
-
-main() {
-  const cc = const C<int>.c(42); // Canonicalized.
-
-  var c0 = new prefix.C<int>(42); // Original syntax.
-
-  // Uses of `prefix.C<int>(42)` in various contexts.
-  var c1 = prefix.C<int>(42);
-  var c2 = [prefix.C<int>(42)][0];
-  var c3 = {prefix.C<int>(42): 0}.keys.first;
-  var c4 = {0: prefix.C<int>(42)}.values.first;
-  var c5 = id(prefix.C<int>(42));
-  var c6 = prefix.C<int>(42).self;
-  var c7 = prefix.C<int>(42).method();
-  var c8 = C(prefix.C<int>(42)).x;
-  var c9 = -prefix.C<int>(42);
-  var c10 = prefix.C<int>(42) < 9;
-  var c11 = C(null) > prefix.C<int>(42);
-  var c12 = (c10 == c11) ? null : prefix.C<int>(42);
-  var c13 = prefix.C<int>(42)..method();
-  var c14;
-  try {
-    throw prefix.C<int>(42);
-  } catch (e) {
-    c14 = e;
-  }
-
-  switch (prefix.C<int>(42)) {
-    case cc:
-      Expect.fail("Should not be const");
-      break;
-    default:
-    // Success.
-  }
-
-  for (prefix.C<int>(42); false; prefix.C<int>(42), prefix.C<int>(42)) {
-    Expect.fail("Unreachable");
-  }
-
-  var values = [
-    cc,
-    c0,
-    c1,
-    c2,
-    c3,
-    c4,
-    c5,
-    c6,
-    c7,
-    c8,
-    c9,
-    c10,
-    c11,
-    c12,
-    c13,
-    c14
-  ];
-  Expect.allDistinct(values); // Non of them create constants.
-  for (var value in values) {
-    Expect.isTrue(value is C<int>);
-    Expect.equals(42, (value as C<int>).x);
-  }
-}
diff --git a/tests/language_2/implicit_creation/implicit_new_prefix_constructor_named_test.dart b/tests/language_2/implicit_creation/implicit_new_prefix_constructor_named_test.dart
deleted file mode 100644
index 5fe061679ed..00000000000
--- a/tests/language_2/implicit_creation/implicit_new_prefix_constructor_named_test.dart
+++ /dev/null
@@ -1,90 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "implicit_new_prefix_constructor_named_test.dart" as prefix;
-
-// Test that an omitted `new` is allowed for a non-generic class.
-
-class C {
-  final Object x;
-  C(this.x); // Not const constructor.
-  const C.c(this.x); // Const constructor.
-
-  operator <(other) => this;
-  operator >(other) => other;
-  operator -() => this;
-
-  C get self => this;
-  C method() => self;
-}
-
-T id<T>(T x) => x;
-
-main() {
-  const cc = const C.c(42); // Canonicalized.
-  var x = 42; // Avoid constant parameter.
-  var c0 = new prefix.C.c(x); // Original syntax.
-
-  // Uses of `prefix.C.c(x)` in various contexts.
-  var c1 = prefix.C.c(x);
-  var c2 = [prefix.C.c(x)][0];
-  var c3 = {prefix.C.c(x): 0}.keys.first;
-  var c4 = {0: prefix.C.c(x)}.values.first;
-  var c5 = id(prefix.C.c(x));
-  var c6 = prefix.C.c(x).self;
-  var c7 = prefix.C.c(x).method();
-  var c8 = C(prefix.C.c(x)).x;
-  var c9 = -prefix.C.c(x);
-  var c10 = prefix.C.c(x) < 9;
-  var c11 = C(null) > prefix.C.c(x);
-  var c12 = (c10 == c11) ? null : prefix.C.c(x);
-  var c13 = prefix.C.c(x)..method();
-  var c14;
-  try {
-    throw prefix.C.c(x);
-  } catch (e) {
-    c14 = e;
-  }
-  Expect.isNotNull(c12);
-
-  switch (prefix.C.c(x)) {
-    case cc:
-      Expect.fail("Should not be const");
-      break;
-    default:
-    // Success.
-  }
-
-  for (prefix.C.c(x); false; prefix.C.c(x), prefix.C.c(x)) {
-    Expect.fail("Unreachable");
-  }
-
-  var values = [
-    cc,
-    c0,
-    c1,
-    c2,
-    c3,
-    c4,
-    c5,
-    c6,
-    c7,
-    c8,
-    c9,
-    c10,
-    c11,
-    c12,
-    c13,
-    c14
-  ];
-  Expect.allDistinct(values); // Non of them create constants.
-  for (var value in values) {
-    Expect.isTrue(value is C);
-    Expect.equals(42, (value as C).x);
-  }
-}
diff --git a/tests/language_2/implicit_creation/implicit_new_prefix_constructor_test.dart b/tests/language_2/implicit_creation/implicit_new_prefix_constructor_test.dart
deleted file mode 100644
index 71a917e6e76..00000000000
--- a/tests/language_2/implicit_creation/implicit_new_prefix_constructor_test.dart
+++ /dev/null
@@ -1,90 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "implicit_new_prefix_constructor_test.dart" as prefix;
-
-// Test that an omitted `new` is allowed for a non-generic class.
-
-class C {
-  final Object x;
-  C(this.x); // Not const constructor.
-  const C.c(this.x); // Const constructor.
-
-  operator <(other) => this;
-  operator >(other) => other;
-  operator -() => this;
-
-  C get self => this;
-  C method() => self;
-}
-
-T id<T>(T x) => x;
-
-main() {
-  const cc = const C.c(42); // Canonicalized.
-
-  var c0 = new prefix.C(42); // Original syntax.
-
-  // Uses of `prefix.C(42)` in various contexts.
-  var c1 = prefix.C(42);
-  var c2 = [prefix.C(42)][0];
-  var c3 = {prefix.C(42): 0}.keys.first;
-  var c4 = {0: prefix.C(42)}.values.first;
-  var c5 = id(prefix.C(42));
-  var c6 = prefix.C(42).self;
-  var c7 = prefix.C(42).method();
-  var c8 = C(prefix.C(42)).x;
-  var c9 = -prefix.C(42);
-  var c10 = prefix.C(42) < 9;
-  var c11 = C(null) > prefix.C(42);
-  var c12 = (c10 == c11) ? null : prefix.C(42);
-  var c13 = prefix.C(42)..method();
-  var c14;
-  try {
-    throw prefix.C(42);
-  } catch (e) {
-    c14 = e;
-  }
-  Expect.isNotNull(c12);
-
-  switch (prefix.C(42)) {
-    case cc:
-      Expect.fail("Should not be const");
-      break;
-    default:
-    // Success.
-  }
-
-  for (prefix.C(42); false; prefix.C(42), prefix.C(42)) {
-    Expect.fail("Unreachable");
-  }
-
-  var values = [
-    cc,
-    c0,
-    c1,
-    c2,
-    c3,
-    c4,
-    c5,
-    c6,
-    c7,
-    c8,
-    c9,
-    c10,
-    c11,
-    c12,
-    c13,
-    c14
-  ];
-  Expect.allDistinct(values); // Non of them create constants.
-  for (var value in values) {
-    Expect.isTrue(value is C);
-    Expect.equals(42, (value as C).x);
-  }
-}
diff --git a/tests/language_2/implicit_downcast_during/assert_initializer_test.dart b/tests/language_2/implicit_downcast_during/assert_initializer_test.dart
deleted file mode 100644
index e28353f25f5..00000000000
--- a/tests/language_2/implicit_downcast_during/assert_initializer_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class C {
-  C.oneArg(Object x) : assert(x);
-  C.twoArgs(Object x, Object y) : assert(x, y);
-}
-
-void main() {
-  Object b = true;
-  new C.oneArg(b); // No error
-  assert(b, 'should not fail'); // No error
-  try {
-    new C.twoArgs(false, b); // Type is ok
-  } on AssertionError {}
-  b = new Object();
-  try {
-    new C.oneArg(b);
-    assert(false, 'Did not throw');
-  } on TypeError {}
-  try {
-    new C.twoArgs(b, 'type error should occur before assert check');
-    assert(false, 'Did not throw');
-  } on TypeError {}
-}
diff --git a/tests/language_2/implicit_downcast_during/assert_statement_test.dart b/tests/language_2/implicit_downcast_during/assert_statement_test.dart
deleted file mode 100644
index f0a3e00069f..00000000000
--- a/tests/language_2/implicit_downcast_during/assert_statement_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-void main() {
-  Object b = true;
-  assert(b); // No error
-  assert(b, 'should not fail'); // No error
-  try {
-    assert(false, b); // Type is ok
-  } on AssertionError {}
-  b = new Object();
-  try {
-    assert(b);
-    assert(false, 'Did not throw');
-  } on TypeError {}
-  try {
-    assert(b, 'type error should occur before assert check');
-    assert(false, 'Did not throw');
-  } on TypeError {}
-}
diff --git a/tests/language_2/implicit_downcast_during/assignment_test.dart b/tests/language_2/implicit_downcast_during/assignment_test.dart
deleted file mode 100644
index 28a8925b587..00000000000
--- a/tests/language_2/implicit_downcast_during/assignment_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-void main() {
-  B b;
-  A a1 = new B();
-  A a2 = new A();
-  b = a1; // No error
-  Expect.throwsTypeError(() {
-    b = a2;
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/combiner_test.dart b/tests/language_2/implicit_downcast_during/combiner_test.dart
deleted file mode 100644
index 3ebd023a4f0..00000000000
--- a/tests/language_2/implicit_downcast_during/combiner_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-class C {
-  C operator +(B b) => this;
-}
-
-void main() {
-  C c = new C();
-  A a1 = new B();
-  A a2 = new A();
-  c += a1; // No error
-  Expect.throwsTypeError(() {
-    c += a2;
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/compound_assignment_test.dart b/tests/language_2/implicit_downcast_during/compound_assignment_test.dart
deleted file mode 100644
index 6d05918904b..00000000000
--- a/tests/language_2/implicit_downcast_during/compound_assignment_test.dart
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {
-  static Object returnValue;
-  static Object argument;
-  Object operator +(Object x) {
-    argument = x;
-    return returnValue;
-  }
-}
-
-void main() {
-  B origB = new B();
-  B b = origB;
-  B.returnValue = new B();
-  B.argument = null;
-  Expect.identical(B.returnValue, b += 2); // No error - types compatible
-  Expect.identical(B.returnValue, b);
-  Expect.identical(2, B.argument);
-
-  b = origB;
-  B.returnValue = new A();
-  B.argument = null;
-  Expect.throwsTypeError(() {
-    b += 3;
-  });
-  // The exception should have happened after the call to operator+ but before
-  // the assignment to b.
-  Expect.identical(origB, b);
-  Expect.identical(3, B.argument);
-
-  b = origB;
-  B.returnValue = new B();
-  B.argument = null;
-  Expect.identical(B.returnValue, ++b); // No error - types compatible
-  Expect.identical(B.returnValue, b);
-  Expect.identical(1, B.argument);
-
-  b = origB;
-  B.returnValue = new A();
-  B.argument = null;
-  Expect.throwsTypeError(() {
-    ++b;
-  });
-  // The exception should have happened after the call to operator+ but before
-  // the assignment to b.
-  Expect.identical(origB, b);
-  Expect.identical(1, B.argument);
-
-  b = origB;
-  B.returnValue = new B();
-  B.argument = null;
-  Expect.identical(origB, b++); // No error - types compatible
-  Expect.identical(B.returnValue, b);
-  Expect.identical(1, B.argument);
-
-  b = origB;
-  B.returnValue = new A();
-  B.argument = null;
-  Expect.throwsTypeError(() {
-    b++;
-  });
-  // The exception should have happened after the call to operator+ but before
-  // the assignment to b.
-  Expect.identical(origB, b);
-  Expect.identical(1, B.argument);
-}
diff --git a/tests/language_2/implicit_downcast_during/conditional_expression_test.dart b/tests/language_2/implicit_downcast_during/conditional_expression_test.dart
deleted file mode 100644
index 89c379c4576..00000000000
--- a/tests/language_2/implicit_downcast_during/conditional_expression_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  Object b = true;
-  b ? 1 : 2; // No error
-  b = new Object();
-  Expect.throwsTypeError(() {
-    b ? 1 : 2;
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/constructor_initializer_test.dart b/tests/language_2/implicit_downcast_during/constructor_initializer_test.dart
deleted file mode 100644
index 18bde65e5c6..00000000000
--- a/tests/language_2/implicit_downcast_during/constructor_initializer_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-class C {
-  B b;
-  C(A a) : b = a;
-}
-
-void main() {
-  A a1 = new B();
-  A a2 = new A();
-  new C(a1); // No error
-  Expect.throwsTypeError(() {
-    new C(a2);
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/constructor_invocation_test.dart b/tests/language_2/implicit_downcast_during/constructor_invocation_test.dart
deleted file mode 100644
index e6d26b41281..00000000000
--- a/tests/language_2/implicit_downcast_during/constructor_invocation_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-class C {
-  C(B b);
-}
-
-main() {
-  A a1 = new B();
-  A a2 = new A();
-  new C(a1); // No error
-  Expect.throwsTypeError(() {
-    new C(a2);
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/do_test.dart b/tests/language_2/implicit_downcast_during/do_test.dart
deleted file mode 100644
index ca3cebf17ad..00000000000
--- a/tests/language_2/implicit_downcast_during/do_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  Object b = false;
-  do {} while (b); // No error
-  b = new Object();
-  Expect.throwsTypeError(() {
-    do {} while (b);
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/factory_constructor_invocation_test.dart b/tests/language_2/implicit_downcast_during/factory_constructor_invocation_test.dart
deleted file mode 100644
index 09aca6a4952..00000000000
--- a/tests/language_2/implicit_downcast_during/factory_constructor_invocation_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-class C {
-  factory C(B b) => new C._();
-  C._();
-}
-
-main() {
-  A a1 = new B();
-  A a2 = new A();
-  new C(a1); // No error
-  Expect.throwsTypeError(() {
-    new C(a2);
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/field_declaration_test.dart b/tests/language_2/implicit_downcast_during/field_declaration_test.dart
deleted file mode 100644
index 5a41dbc8f6f..00000000000
--- a/tests/language_2/implicit_downcast_during/field_declaration_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-A a1 = new B();
-A a2 = new A();
-B b1 = a1;
-B b2 = a2;
-
-class C {
-  static B b3 = a1;
-  static B b4 = a2;
-  B b5 = a1;
-}
-
-class D {
-  B b6 = a2;
-}
-
-void main() {
-  b1; // No error
-  Expect.throwsTypeError(() {
-    b2;
-  });
-  C.b3; // No error
-  Expect.throwsTypeError(() {
-    C.b4;
-  });
-  new C(); // No error
-  Expect.throwsTypeError(() {
-    new D();
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/for_condition_test.dart b/tests/language_2/implicit_downcast_during/for_condition_test.dart
deleted file mode 100644
index 037fb82423c..00000000000
--- a/tests/language_2/implicit_downcast_during/for_condition_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  Object b = false;
-  for (int i = 0; b; i++) {} // No error
-  b = new Object();
-  Expect.throwsTypeError(() {
-    for (int i = 0; b; i++) {}
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/for_in_element_test.dart b/tests/language_2/implicit_downcast_during/for_in_element_test.dart
deleted file mode 100644
index 5910259c68a..00000000000
--- a/tests/language_2/implicit_downcast_during/for_in_element_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-void main() {
-  List<A> listOfA = <A>[new B()];
-  Object o = listOfA;
-  for (B x in o) {} // No error
-  for (B x in listOfA) {} // No error
-  B y;
-  for (y in o) {} // No error
-  for (y in listOfA) {} // No error
-  listOfA[0] = new A();
-  Expect.throwsTypeError(() {
-    for (B x in o) {}
-  });
-  Expect.throwsTypeError(() {
-    for (B x in listOfA) {}
-  });
-  Expect.throwsTypeError(() {
-    for (y in o) {}
-  });
-  Expect.throwsTypeError(() {
-    for (y in listOfA) {}
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/for_in_iterable_test.dart b/tests/language_2/implicit_downcast_during/for_in_iterable_test.dart
deleted file mode 100644
index 3d4e2de7c49..00000000000
--- a/tests/language_2/implicit_downcast_during/for_in_iterable_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-void main() {
-  Object o = <A>[];
-  for (var x in o) {} // No error
-  for (B x in o) {} // No error
-  B y;
-  for (y in o) {} // No error
-  o = new Object();
-  Expect.throwsTypeError(() {
-    for (var x in o) {}
-  });
-  Expect.throwsTypeError(() {
-    for (B x in o) {}
-  });
-  Expect.throwsTypeError(() {
-    for (y in o) {}
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/for_initializer_expression_test.dart b/tests/language_2/implicit_downcast_during/for_initializer_expression_test.dart
deleted file mode 100644
index d9bacb5329e..00000000000
--- a/tests/language_2/implicit_downcast_during/for_initializer_expression_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  Object b = 0;
-  int i;
-  for (i = b; i < 1; i++) {} // No error
-  b = new Object();
-  Expect.throwsTypeError(() {
-    for (i = b; i < 1; i++) {}
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/for_initializer_var_test.dart b/tests/language_2/implicit_downcast_during/for_initializer_var_test.dart
deleted file mode 100644
index 847e5def9b1..00000000000
--- a/tests/language_2/implicit_downcast_during/for_initializer_var_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  Object b = 0;
-  for (int i = b; i < 1; i++) {} // No error
-  b = new Object();
-  Expect.throwsTypeError(() {
-    for (int i = b; i < 1; i++) {}
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/function_literal_arrow_test.dart b/tests/language_2/implicit_downcast_during/function_literal_arrow_test.dart
deleted file mode 100644
index 7ee2d92a96b..00000000000
--- a/tests/language_2/implicit_downcast_during/function_literal_arrow_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-void main() {
-  Object b;
-  A a = new B();
-  B Function(A) f = (A a) => a;
-  b = f(a); // No error
-  a = new A();
-  Expect.throwsTypeError(() {
-    f(a);
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/function_literal_return_test.dart b/tests/language_2/implicit_downcast_during/function_literal_return_test.dart
deleted file mode 100644
index 6eaf42c735f..00000000000
--- a/tests/language_2/implicit_downcast_during/function_literal_return_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-void main() {
-  Object b;
-  A a = new B();
-  B Function(A) f = (A a) {
-    return a;
-  };
-  b = f(a); // No error
-  a = new A();
-  Expect.throwsTypeError(() {
-    f(a);
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/if_null_assignment_test.dart b/tests/language_2/implicit_downcast_during/if_null_assignment_test.dart
deleted file mode 100644
index 04e917cf5b1..00000000000
--- a/tests/language_2/implicit_downcast_during/if_null_assignment_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-void main() {
-  B b;
-  A a1 = new B();
-  A a2 = new A();
-  b ??= a1; // No error - types compatible
-  b ??= a2; // No error - assignment has no effect
-  b = null;
-  Expect.throwsTypeError(() {
-    b ??= a2;
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/if_statement_test.dart b/tests/language_2/implicit_downcast_during/if_statement_test.dart
deleted file mode 100644
index 6d954a8d911..00000000000
--- a/tests/language_2/implicit_downcast_during/if_statement_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  Object b = true;
-  if (b) {} // No error
-  b = new Object();
-  Expect.throwsTypeError(() {
-    if (b) {}
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/indexed_assignment_test.dart b/tests/language_2/implicit_downcast_during/indexed_assignment_test.dart
deleted file mode 100644
index 86c771188cc..00000000000
--- a/tests/language_2/implicit_downcast_during/indexed_assignment_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-class C {
-  void operator []=(B b, Object o) {}
-}
-
-void main() {
-  A a1 = new B();
-  A a2 = new A();
-  C c = new C();
-  c[a1] = null; // No error
-  Expect.throwsTypeError(() {
-    c[a2] = null;
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/indexed_compound_assignment_test.dart b/tests/language_2/implicit_downcast_during/indexed_compound_assignment_test.dart
deleted file mode 100644
index 18f2c11d404..00000000000
--- a/tests/language_2/implicit_downcast_during/indexed_compound_assignment_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-class C {
-  int operator [](A a) => 0;
-  void operator []=(B b, int o) {}
-}
-
-class D {
-  int operator [](B b) => 0;
-  void operator []=(A a, int o) {}
-}
-
-void main() {
-  A a1 = new B();
-  A a2 = new A();
-  C c = new C();
-  D d = new D();
-  c[a1] += 1; // No error
-  d[a1] += 1; // No error
-  Expect.throwsTypeError(() {
-    c[a2] += 1;
-  });
-  Expect.throwsTypeError(() {
-    d[a2] += 1;
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/indexed_get_test.dart b/tests/language_2/implicit_downcast_during/indexed_get_test.dart
deleted file mode 100644
index 7886e358740..00000000000
--- a/tests/language_2/implicit_downcast_during/indexed_get_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-class C {
-  Object operator [](B b) => null;
-}
-
-void main() {
-  A a1 = new B();
-  A a2 = new A();
-  C c = new C();
-  c[a1]; // No error
-  Expect.throwsTypeError(() {
-    c[a2];
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/indexed_if_null_assignment_test.dart b/tests/language_2/implicit_downcast_during/indexed_if_null_assignment_test.dart
deleted file mode 100644
index b65ef3de538..00000000000
--- a/tests/language_2/implicit_downcast_during/indexed_if_null_assignment_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-class C {
-  Object operator [](A a) => 0;
-  void operator []=(B b, Object o) {}
-}
-
-class D {
-  Object operator [](B b) => 0;
-  void operator []=(A a, Object o) {}
-}
-
-class E {
-  Object operator [](A a) => null;
-  void operator []=(B b, Object o) {}
-}
-
-void main() {
-  A a1 = new B();
-  A a2 = new A();
-  C c = new C();
-  D d = new D();
-  E e = new E();
-  c[a1] ??= 1; // No error
-  d[a1] ??= 1; // No error
-  e[a1] ??= 1; // No error
-  c[a2] ??= 1; // No error - []= skipped
-  Expect.throwsTypeError(() {
-    d[a2] ??= 1;
-  });
-  Expect.throwsTypeError(() {
-    e[a2] ??= 1;
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/invocation_test.dart b/tests/language_2/implicit_downcast_during/invocation_test.dart
deleted file mode 100644
index b09e00f393d..00000000000
--- a/tests/language_2/implicit_downcast_during/invocation_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-void f(B b) {}
-
-main() {
-  A a1 = new B();
-  A a2 = new A();
-  f(a1); // No error
-  Expect.throwsTypeError(() {
-    f(a2);
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/list_literal_test.dart b/tests/language_2/implicit_downcast_during/list_literal_test.dart
deleted file mode 100644
index 48d27162d9b..00000000000
--- a/tests/language_2/implicit_downcast_during/list_literal_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-void main() {
-  A a1 = new B();
-  A a2 = new A();
-  <B>[a1]; // No error
-  Expect.throwsTypeError(() {
-    <B>[a2];
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/logical_expression_test.dart b/tests/language_2/implicit_downcast_during/logical_expression_test.dart
deleted file mode 100644
index 8da77c09113..00000000000
--- a/tests/language_2/implicit_downcast_during/logical_expression_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  Object t = true;
-  Object f = false;
-  Object o = new Object();
-  t || o; // No error
-  f || f; // No error
-  Expect.throwsTypeError(() {
-    o || t;
-  });
-  Expect.throwsTypeError(() {
-    f || o;
-  });
-  f && o; // No error
-  t && t; // No error
-  Expect.throwsTypeError(() {
-    o && f;
-  });
-  Expect.throwsTypeError(() {
-    t && o;
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/map_literal_test.dart b/tests/language_2/implicit_downcast_during/map_literal_test.dart
deleted file mode 100644
index a31f6a25a51..00000000000
--- a/tests/language_2/implicit_downcast_during/map_literal_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-void main() {
-  A a1 = new B();
-  A a2 = new A();
-  <B, Object>{a1: 1}; // No error
-  <Object, B>{1: a1}; // No error
-  Expect.throwsTypeError(() {
-    <B, Object>{a2: 1};
-  });
-  Expect.throwsTypeError(() {
-    <Object, B>{1: a2};
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/method_invocation_test.dart b/tests/language_2/implicit_downcast_during/method_invocation_test.dart
deleted file mode 100644
index f67bf58678a..00000000000
--- a/tests/language_2/implicit_downcast_during/method_invocation_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-class C {
-  void f(B b) {}
-}
-
-main() {
-  C c = new C();
-  A a1 = new B();
-  A a2 = new A();
-  c.f(a1); // No error
-  Expect.throwsTypeError(() {
-    c.f(a2);
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/not_test.dart b/tests/language_2/implicit_downcast_during/not_test.dart
deleted file mode 100644
index da1cbbbf405..00000000000
--- a/tests/language_2/implicit_downcast_during/not_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  Object b = true;
-  !b; // No error
-  b = new Object();
-  Expect.throwsTypeError(() {
-    !b;
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/null_aware_method_invocation_test.dart b/tests/language_2/implicit_downcast_during/null_aware_method_invocation_test.dart
deleted file mode 100644
index a5384265c96..00000000000
--- a/tests/language_2/implicit_downcast_during/null_aware_method_invocation_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-class C {
-  void f(B b) {}
-}
-
-main() {
-  C c = new C();
-  A a1 = new B();
-  A a2 = new A();
-  c?.f(a1); // No error
-  Expect.throwsTypeError(() {
-    c?.f(a2);
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/redirecting_initializer_test.dart b/tests/language_2/implicit_downcast_during/redirecting_initializer_test.dart
deleted file mode 100644
index 14c602ac344..00000000000
--- a/tests/language_2/implicit_downcast_during/redirecting_initializer_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-class C {
-  C(A a) : this._(a);
-  C._(B b);
-}
-
-main() {
-  A a1 = new B();
-  A a2 = new A();
-  new C(a1); // No error
-  Expect.throwsTypeError(() {
-    new C(a2);
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/return_async_test.dart b/tests/language_2/implicit_downcast_during/return_async_test.dart
deleted file mode 100644
index ceaeb3ff8c3..00000000000
--- a/tests/language_2/implicit_downcast_during/return_async_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-Future<B> f1(A a) async {
-  return a as FutureOr<A>;
-}
-
-Future<B> f2(A a) async => a as FutureOr<A>;
-
-main() async {
-  Object b;
-  A a = new B();
-  b = await f1(a); // No error
-  b = await f2(a); // No error
-  a = new A();
-  try {
-    await f1(a);
-    Expect.fail('await f1(a) should have thrown TypeError');
-  } on TypeError {}
-  try {
-    await f2(a);
-    Expect.fail('await f2(a) should have thrown TypeError');
-  } on TypeError {}
-}
diff --git a/tests/language_2/implicit_downcast_during/return_test.dart b/tests/language_2/implicit_downcast_during/return_test.dart
deleted file mode 100644
index 899706aa606..00000000000
--- a/tests/language_2/implicit_downcast_during/return_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-B f1(A a) {
-  return a;
-}
-
-B f2(A a) => a;
-
-void main() {
-  Object b;
-  A a = new B();
-  b = f1(a); // No error
-  b = f2(a); // No error
-  a = new A();
-  Expect.throwsTypeError(() {
-    f1(a);
-  });
-  Expect.throwsTypeError(() {
-    f2(a);
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/static_method_invocation_test.dart b/tests/language_2/implicit_downcast_during/static_method_invocation_test.dart
deleted file mode 100644
index 4428b47440d..00000000000
--- a/tests/language_2/implicit_downcast_during/static_method_invocation_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-class C {
-  static void f(B b) {}
-}
-
-main() {
-  A a1 = new B();
-  A a2 = new A();
-  C.f(a1); // No error
-  Expect.throwsTypeError(() {
-    C.f(a2);
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/super_initializer_test.dart b/tests/language_2/implicit_downcast_during/super_initializer_test.dart
deleted file mode 100644
index b2b9be4f046..00000000000
--- a/tests/language_2/implicit_downcast_during/super_initializer_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-class Base {
-  Base(B b);
-}
-
-class C extends Base {
-  C(A a) : super(a);
-}
-
-main() {
-  A a1 = new B();
-  A a2 = new A();
-  new C(a1); // No error
-  Expect.throwsTypeError(() {
-    new C(a2);
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/super_method_invocation_test.dart b/tests/language_2/implicit_downcast_during/super_method_invocation_test.dart
deleted file mode 100644
index b2f804c208a..00000000000
--- a/tests/language_2/implicit_downcast_during/super_method_invocation_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-class Base {
-  void g(B b) {}
-}
-
-class C extends Base {
-  void f(A a) {
-    g(a);
-  }
-}
-
-main() {
-  C c = new C();
-  A a1 = new B();
-  A a2 = new A();
-  c.f(a1); // No error
-  Expect.throwsTypeError(() {
-    c.f(a2);
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/variable_declaration_test.dart b/tests/language_2/implicit_downcast_during/variable_declaration_test.dart
deleted file mode 100644
index c996db157d7..00000000000
--- a/tests/language_2/implicit_downcast_during/variable_declaration_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-void main() {
-  A a1 = new B();
-  A a2 = new A();
-  B b1 = a1; // No error
-  Expect.throwsTypeError(() {
-    B b2 = a2;
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/while_statement_test.dart b/tests/language_2/implicit_downcast_during/while_statement_test.dart
deleted file mode 100644
index 310c7c81fc8..00000000000
--- a/tests/language_2/implicit_downcast_during/while_statement_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  Object b = false;
-  while (b) {} // No error
-  b = new Object();
-  Expect.throwsTypeError(() {
-    while (b) {}
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/yield_star_test.dart b/tests/language_2/implicit_downcast_during/yield_star_test.dart
deleted file mode 100644
index 09acc266916..00000000000
--- a/tests/language_2/implicit_downcast_during/yield_star_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-Iterable<B> f(Iterable<A> a) sync* {
-  yield* a;
-}
-
-void main() {
-  B b = new B();
-  for (var x in f(<B>[b])) {} // No error
-  var iterator = f(<A>[b]).iterator;
-  Expect.throwsTypeError(() {
-    iterator.moveNext();
-  });
-}
diff --git a/tests/language_2/implicit_downcast_during/yield_test.dart b/tests/language_2/implicit_downcast_during/yield_test.dart
deleted file mode 100644
index 97b69929163..00000000000
--- a/tests/language_2/implicit_downcast_during/yield_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-Iterable<B> f(A a) sync* {
-  yield a;
-}
-
-void main() {
-  A a = new B();
-  for (var x in f(a)) {} // No error
-  a = new A();
-  var iterator = f(a).iterator;
-  Expect.throwsTypeError(() {
-    iterator.moveNext();
-  });
-}
diff --git a/tests/language_2/import/collection_no_prefix_test.dart b/tests/language_2/import/collection_no_prefix_test.dart
deleted file mode 100644
index 538be1a706a..00000000000
--- a/tests/language_2/import/collection_no_prefix_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test program importing the core library explicitly.
-
-library ImportCollectionNoPrefixTest.dart;
-
-import "dart:collection";
-
-main() {
-  var e = new SplayTreeMap();
-  print('"dart:collection" imported, $e allocated');
-}
diff --git a/tests/language_2/import/combinators2_runtime_test.dart b/tests/language_2/import/combinators2_runtime_test.dart
deleted file mode 100644
index aeef4ba8f5c..00000000000
--- a/tests/language_2/import/combinators2_runtime_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Dart test program importing with show/hide combinators.
-
-// Show "hide" and "show", hide "ugly".
-import "import1_lib.dart" show hide, show hide ugly;
-
-main() {
-  print(hide);
-  print(show);
-
-  // Ugly is hidden.
-
-}
diff --git a/tests/language_2/import/combinators2_test.dart b/tests/language_2/import/combinators2_test.dart
deleted file mode 100644
index 6b2c716f2ac..00000000000
--- a/tests/language_2/import/combinators2_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test program importing with show/hide combinators.
-
-// Show "hide" and "show", hide "ugly".
-import "import1_lib.dart" show hide, show hide ugly;
-
-main() {
-  print(hide);
-  print(show);
-
-  // Ugly is hidden.
-  print(ugly);
-  //    ^^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-  // [cfe] Undefined name 'ugly'.
-}
diff --git a/tests/language_2/import/combinators_part.dart b/tests/language_2/import/combinators_part.dart
deleted file mode 100644
index d63ef0537cf..00000000000
--- a/tests/language_2/import/combinators_part.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This file is part of the test import_combinators_test.dart
-
-part of importCombinatorsTest;
-
-lookBehindCurtain() {
-  return show; // show is an imported identifier.
-}
diff --git a/tests/language_2/import/combinators_test.dart b/tests/language_2/import/combinators_test.dart
deleted file mode 100644
index 2c0f499f947..00000000000
--- a/tests/language_2/import/combinators_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test program importing with show/hide combinators.
-
-library importCombinatorsTest;
-
-import "package:expect/expect.dart";
-import "import1_lib.dart" show hide, show hide ugly;
-import "export1_lib.dart";
-import "dart:math" as M show e;
-
-part "combinators_part.dart";
-
-main() {
-  Expect.equals("hide", hide);
-  Expect.equals("show", show);
-  // Top-level function from part, refers to imported variable show.
-  Expect.equals("show", lookBehindCurtain());
-  // Top-level variable E from export1_lib.dart.
-  Expect.equals("E", e);
-  // Top-level variable E imported from dart:math.
-  Expect.equals(2.718281828459045, M.e);
-  // Constant LN2 from math library, re-exported by export1_lib.dart.
-  Expect.equals(0.6931471805599453, ln2);
-}
diff --git a/tests/language_2/import/conditional_import_test.dart b/tests/language_2/import/conditional_import_test.dart
deleted file mode 100644
index 0cabc2ed761..00000000000
--- a/tests/language_2/import/conditional_import_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-// All three libraries have an HttpRequest class.
-import "conditional_import_test.dart"
-    if (dart.library.io) "dart:io"
-    if (dart.library.html) "dart:html" deferred as d show HttpRequest;
-
-class HttpRequest {}
-
-void main() {
-  asyncStart();
-  var io = const bool.fromEnvironment("dart.library.io");
-  var html = const bool.fromEnvironment("dart.library.html");
-  () async {
-    // Shouldn't fail. Shouldn't time out.
-    await d.loadLibrary().timeout(const Duration(seconds: 5));
-    if (io) {
-      print("io");
-      Expect.throws(() => new d.HttpRequest()); // Class is abstract in dart:io
-    } else if (html) {
-      print("html");
-      dynamic r = new d.HttpRequest(); // Shouldn't throw
-      var o = r.open; // Shouldn't fail, the open method is there.
-    } else {
-      print("none");
-      dynamic r = new d.HttpRequest();
-      Expect.isTrue(r is HttpRequest);
-    }
-    asyncEnd();
-  }();
-}
diff --git a/tests/language_2/import/conditional_string_test.dart b/tests/language_2/import/conditional_string_test.dart
deleted file mode 100644
index 8103d0eb356..00000000000
--- a/tests/language_2/import/conditional_string_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-// All three libraries have an HttpRequest class.
-import "conditional_string_test.dart"
-    if (dart.library.io == "true") "dart:io"
-    if (dart.library.html == "true") "dart:html" deferred as d show HttpRequest;
-
-class HttpRequest {}
-
-void main() {
-  asyncStart();
-  var io = const String.fromEnvironment("dart.library.io");
-  var html = const String.fromEnvironment("dart.library.html");
-  () async {
-    // Shouldn't fail. Shouldn't time out.
-    await d.loadLibrary().timeout(const Duration(seconds: 5));
-    if (io == "true") {
-      print("io");
-      Expect.throws(() => new d.HttpRequest()); // Class is abstract in dart:io
-    } else if (html == "true") {
-      print("html");
-      dynamic r = new d.HttpRequest(); // Shouldn't throw
-      var o = r.open; // Shouldn't fail, the open method is there.
-    } else {
-      print("none");
-      dynamic r = new d.HttpRequest();
-      Expect.isTrue(r is HttpRequest);
-    }
-    asyncEnd();
-  }();
-}
diff --git a/tests/language_2/import/config_corelib_general.dart b/tests/language_2/import/config_corelib_general.dart
deleted file mode 100644
index fdd163e1814..00000000000
--- a/tests/language_2/import/config_corelib_general.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Classy {
-  String get name => "classy general";
-  String httpSpecific() => throw UnimplementedError();
-  String ioSpecific() => throw UnimplementedError();
-}
-
-bool general() => true;
-bool httpSpecific() => false;
-bool ioSpecific() => false;
-final String name = "general";
diff --git a/tests/language_2/import/config_corelib_http.dart b/tests/language_2/import/config_corelib_http.dart
deleted file mode 100644
index be230111c5b..00000000000
--- a/tests/language_2/import/config_corelib_http.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:http";
-
-class Classy {
-  String get name => "classy http";
-  String httpSpecific() => "classy http";
-  String ioSpecific() => throw UnimplementedError();
-}
-
-bool general() => true;
-bool httpSpecific() => true;
-bool ioSpecific() => false;
-final String name = "http";
diff --git a/tests/language_2/import/config_corelib_io.dart b/tests/language_2/import/config_corelib_io.dart
deleted file mode 100644
index fe9b1e92954..00000000000
--- a/tests/language_2/import/config_corelib_io.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:io";
-
-class Classy {
-  String get name => "classy io";
-  String httpSpecific() => throw UnimplementedError();
-  String ioSpecific() => "classy io";
-}
-
-bool general() => true;
-bool httpSpecific() => false;
-bool ioSpecific() => true;
-final String name = "io";
diff --git a/tests/language_2/import/config_corelib_test.dart b/tests/language_2/import/config_corelib_test.dart
deleted file mode 100644
index 46262c13707..00000000000
--- a/tests/language_2/import/config_corelib_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'config_corelib_general.dart'
-    if (dart.library.io) 'config_corelib_io.dart'
-    if (dart.library.http) 'config_corelib_http.dart' as lib;
-
-class SubClassy extends lib.Classy {
-  String get superName => super.name;
-}
-
-main() {
-  var io = const bool.fromEnvironment("dart.library.io");
-  var http = const bool.fromEnvironment("dart.library.http");
-
-  var cy = new SubClassy();
-
-  if (io) {
-    Expect.isTrue(lib.general());
-    Expect.equals("io", lib.name);
-    Expect.equals("classy io", cy.name);
-
-    Expect.isTrue(lib.ioSpecific());
-    Expect.equals("classy io", cy.ioSpecific());
-
-    Expect.isFalse(lib.httpSpecific());
-    Expect.throws(cy.httpSpecific);
-  } else if (http) {
-    Expect.isTrue(lib.general());
-    Expect.equals("http", lib.name);
-    Expect.equals("classy http", cy.name);
-
-    Expect.isFalse(lib.ioSpecific());
-    Expect.throws(cy.ioSpecific);
-
-    Expect.isTrue(lib.httpSpecific());
-    Expect.equals("classy http", cy.httpSpecific());
-  } else {
-    Expect.isTrue(lib.general());
-    Expect.equals("general", lib.name);
-    Expect.equals("classy general", cy.name);
-
-    Expect.isFalse(lib.ioSpecific());
-    Expect.throws(cy.ioSpecific);
-
-    Expect.isFalse(lib.httpSpecific());
-    Expect.throws(cy.httpSpecific);
-  }
-}
diff --git a/tests/language_2/import/core_no_prefix_test.dart b/tests/language_2/import/core_no_prefix_test.dart
deleted file mode 100644
index 146dfd7b29c..00000000000
--- a/tests/language_2/import/core_no_prefix_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test program importing the core library explicitly.
-
-library ImportCoreNoPrefixTest.dart;
-
-import "dart:core";
-
-main() {
-  print('"dart:core" imported.');
-}
diff --git a/tests/language_2/import/core_prefix_test.dart b/tests/language_2/import/core_prefix_test.dart
deleted file mode 100644
index 524bc9411f3..00000000000
--- a/tests/language_2/import/core_prefix_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test explicit import of dart:core in the source code..
-
-// @dart = 2.9
-
-library ImportCorePrefixTest.dart;
-
-import "package:expect/expect.dart";
-import "dart:core" as mycore;
-
-class Object {}
-
-class Map {
-  Map(this._lat, this._long);
-
-  get isPrimeMeridian => _long == 0;
-
-  var _lat;
-  var _long;
-}
-
-void main() {
-  var test = new mycore.Map<mycore.int, mycore.String>();
-  mycore.bool boolval = false;
-  mycore.int variable = 10;
-  mycore.num value = 10;
-  mycore.dynamic d = null;
-  mycore.print(new mycore.Object());
-  mycore.print(new Object());
-
-  var greenwich = new Map(51, 0);
-  var kpao = new Map(37, -122);
-  Expect.isTrue(greenwich.isPrimeMeridian);
-  Expect.isFalse(kpao.isPrimeMeridian);
-}
diff --git a/tests/language_2/import/core_test.dart b/tests/language_2/import/core_test.dart
deleted file mode 100644
index 9bcd512d5f1..00000000000
--- a/tests/language_2/import/core_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test explicit import of dart:core in the source code..
-
-// @dart = 2.9
-
-library ImportCoreTest.dart;
-
-import "dart:core";
-
-void main() {
-  var test = new Map<int, String>();
-  bool value = false;
-  int variable = 10;
-  num intval = 10;
-}
diff --git a/tests/language_2/import/cyclic_test.dart b/tests/language_2/import/cyclic_test.dart
deleted file mode 100644
index a9b188408cc..00000000000
--- a/tests/language_2/import/cyclic_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-
-// @dart = 2.9
-library CyclicImportTest;
-
-import 'sub/sub.dart';
-
-var value = 42;
-
-main() {
-  subMain();
-}
diff --git a/tests/language_2/import/duplicate_import_liba.dart b/tests/language_2/import/duplicate_import_liba.dart
deleted file mode 100644
index 7913ee42231..00000000000
--- a/tests/language_2/import/duplicate_import_liba.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library liba;
-
-var field;
-
-void method() {}
-
-class Class {}
-
-void methodOrClass() {}
diff --git a/tests/language_2/import/duplicate_libb.dart b/tests/language_2/import/duplicate_libb.dart
deleted file mode 100644
index 66a23796916..00000000000
--- a/tests/language_2/import/duplicate_libb.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library libb;
-
-var field;
-
-void method() {}
-
-class Class {}
-
-class methodOrClass {}
diff --git a/tests/language_2/import/duplicate_prefix_test.dart b/tests/language_2/import/duplicate_prefix_test.dart
deleted file mode 100644
index f2e5c0742d7..00000000000
--- a/tests/language_2/import/duplicate_prefix_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Importing with a duplicate prefix is allowed.
-
-import "duplicate_import_liba.dart" as a;
-import "duplicate_libb.dart" as a;
-
-void main() {}
diff --git a/tests/language_2/import/export1_lib.dart b/tests/language_2/import/export1_lib.dart
deleted file mode 100644
index 5addb9e8b84..00000000000
--- a/tests/language_2/import/export1_lib.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library export1_lib;
-
-export "dart:math" show ln10, ln2, e;
-
-var e = "E"; // Hides constant E from math lib.
diff --git a/tests/language_2/import/hidden_import_test.dart b/tests/language_2/import/hidden_import_test.dart
deleted file mode 100644
index 3d80f38e71a..00000000000
--- a/tests/language_2/import/hidden_import_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that dart: imports are implicitly hidden and cause warning on use.
-
-library hidden_import;
-
-import 'hidden_lib.dart';
-import 'hidden_lib.dart' as prefix;
-import 'dart:async';
-import 'dart:async' as prefix;
-
-main() {
-  new Future();
-  new prefix.Future();
-}
diff --git a/tests/language_2/import/hidden_lib.dart b/tests/language_2/import/hidden_lib.dart
deleted file mode 100644
index f40d422e8b3..00000000000
--- a/tests/language_2/import/hidden_lib.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library hidden_import_lib;
-
-class Future {}
diff --git a/tests/language_2/import/hidden_runtime_test.dart b/tests/language_2/import/hidden_runtime_test.dart
deleted file mode 100644
index f3c4d7c070f..00000000000
--- a/tests/language_2/import/hidden_runtime_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Tests that dart: imports are implicitly hidden and cause warning on use.
-
-library hidden_import;
-
-import 'hidden_lib.dart';
-import 'hidden_lib.dart' as prefix;
-import 'dart:async';
-import 'dart:async' as prefix;
-
-main() {
-
-
-}
diff --git a/tests/language_2/import/import1_lib.dart b/tests/language_2/import/import1_lib.dart
deleted file mode 100644
index 5ebed89d76e..00000000000
--- a/tests/language_2/import/import1_lib.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library import1_lib;
-
-int libfunc(a, b) => a + b;
-
-var show = 'show';
-var hide = 'hide';
-
-var ugly = 'ugly';
-
-class Q {
-  var _s;
-  Q(s) : _s = s;
-  toString() => "LQQK: '$_s'";
-}
diff --git a/tests/language_2/import/internal_library_runtime_test.dart b/tests/language_2/import/internal_library_runtime_test.dart
deleted file mode 100644
index d76974bb815..00000000000
--- a/tests/language_2/import/internal_library_runtime_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that a private library cannot be accessed from outside the platform.
-
-library internal_library_test;
-
-import 'dart:core'; // This loads 'dart:_foreign_helper' and 'patch:core'.
-
-
-
-
-void main() {
-
-
-}
diff --git a/tests/language_2/import/name_clash_lib1.dart b/tests/language_2/import/name_clash_lib1.dart
deleted file mode 100644
index c2a3c8506ea..00000000000
--- a/tests/language_2/import/name_clash_lib1.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library clashing.nonempty.name;
diff --git a/tests/language_2/import/name_clash_lib2.dart b/tests/language_2/import/name_clash_lib2.dart
deleted file mode 100644
index c2a3c8506ea..00000000000
--- a/tests/language_2/import/name_clash_lib2.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library clashing.nonempty.name;
diff --git a/tests/language_2/import/name_clash_test.dart b/tests/language_2/import/name_clash_test.dart
deleted file mode 100644
index 7d44f02e12b..00000000000
--- a/tests/language_2/import/name_clash_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that a library name clash is not an error.
-
-import "name_clash_lib1.dart";
-import "name_clash_lib2.dart";
-
-export "name_clash_lib1.dart";
-export "name_clash_lib2.dart";
-
-main() {}
diff --git a/tests/language_2/import/nonexisting_dart_uri_runtime_test.dart b/tests/language_2/import/nonexisting_dart_uri_runtime_test.dart
deleted file mode 100644
index 3e132311da9..00000000000
--- a/tests/language_2/import/nonexisting_dart_uri_runtime_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-
-
-main() {}
diff --git a/tests/language_2/import/nonexisting_dart_uri_test.dart b/tests/language_2/import/nonexisting_dart_uri_test.dart
deleted file mode 100644
index 1dd02ea0472..00000000000
--- a/tests/language_2/import/nonexisting_dart_uri_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:nonexisting/nonexisting.dart";
-//     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.URI_DOES_NOT_EXIST
-// [cfe] Dart library 'dart:nonexisting/nonexisting.dart' is not available on this platform.
-
-main() {}
diff --git a/tests/language_2/import/private_runtime_test.dart b/tests/language_2/import/private_runtime_test.dart
deleted file mode 100644
index fddcf749d2d..00000000000
--- a/tests/language_2/import/private_runtime_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check that private dart:_ libraries cannot be imported.
-
-
-
-main() {
-  print("Done.");
-}
diff --git a/tests/language_2/import/private_test.dart b/tests/language_2/import/private_test.dart
deleted file mode 100644
index 434ca2b5197..00000000000
--- a/tests/language_2/import/private_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check that private dart:_ libraries cannot be imported.
-
-// @dart = 2.9
-
-import "dart:_internal";
-//     ^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.IMPORT_INTERNAL_LIBRARY
-// [cfe] Can't access platform private library.
-
-main() {
-  print("Done.");
-}
diff --git a/tests/language_2/import/self_runtime_test.dart b/tests/language_2/import/self_runtime_test.dart
deleted file mode 100644
index 03db0a5d5f4..00000000000
--- a/tests/language_2/import/self_runtime_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Check that private names cannot be imported even if the library imports
-// itself.
-
-library import_self;
-
-import "package:expect/expect.dart";
-
-// Eliminate the import of the unmodified file or else the analyzer
-// will generate the static error in the import_self_test_none case.
-
-
-var _x = "The quick brown fox jumps over the dazy log";
-
-main() {
-
-}
diff --git a/tests/language_2/import/self_test.dart b/tests/language_2/import/self_test.dart
deleted file mode 100644
index 6d76c26af7b..00000000000
--- a/tests/language_2/import/self_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Check that private names cannot be imported even if the library imports
-// itself.
-
-// @dart = 2.9
-
-library import_self;
-
-import "package:expect/expect.dart";
-
-// Eliminate the import of the unmodified file or else the analyzer
-// will generate the static error in the import_self_test_none case.
-import "self_test.dart" as p;
-
-var _x = "The quick brown fox jumps over the dazy log";
-
-main() {
-  p._x;
-  //^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_PREFIXED_NAME
-  // [cfe] Undefined name '_x'.
-}
diff --git a/tests/language_2/import/show_lib.dart b/tests/language_2/import/show_lib.dart
deleted file mode 100644
index b5e7eb29114..00000000000
--- a/tests/language_2/import/show_lib.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library import_show_lib;
-
-get theEnd => "http://www.endoftheinternet.com/";
diff --git a/tests/language_2/import/show_test.dart b/tests/language_2/import/show_test.dart
deleted file mode 100644
index b8ac20400a7..00000000000
--- a/tests/language_2/import/show_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library import_show_test;
-
-import "package:expect/expect.dart";
-import "show_lib.dart" show theEnd;
-
-main() {
-  var foo = theEnd;
-  Expect.equals("http://www.endoftheinternet.com/", foo);
-}
diff --git a/tests/language_2/import/sub/sub.dart b/tests/language_2/import/sub/sub.dart
deleted file mode 100644
index 9a9899e2fd4..00000000000
--- a/tests/language_2/import/sub/sub.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-
-// @dart = 2.9
-library sub;
-
-import '../cyclic_test.dart';
-import 'package:expect/expect.dart';
-
-subMain() {
-  Expect.equals(42, value);
-}
diff --git a/tests/language_2/import/transitive_private_library_access_test.dart b/tests/language_2/import/transitive_private_library_access_test.dart
deleted file mode 100644
index 3d0e1c908a9..00000000000
--- a/tests/language_2/import/transitive_private_library_access_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to check that we can resolve unqualified identifiers
-
-// @dart = 2.9
-
-// Import 'dart:typed_data' which internally imports 'dart:_internal'.
-import 'dart:typed_data';
-
-import 'package:expect/expect.dart';
-
-main() {
-  ClassID.GetID(4);
-//^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-// [cfe] Undefined name 'ClassID'.
-}
diff --git a/tests/language_2/inference/accessor_ref_runtime_1_test.dart b/tests/language_2/inference/accessor_ref_runtime_1_test.dart
deleted file mode 100644
index eecd4374db1..00000000000
--- a/tests/language_2/inference/accessor_ref_runtime_1_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-/*@testedFeatures=inference*/
-library test;
-
-class A {
-  B b;
-}
-
-class B {
-  C get c => null;
-  void set c(C value) {}
-}
-
-class C {}
-
-class D extends C {}
-
-class E extends C {}
-
-// Inferred type: A
-var a = new A();
-
-// Inferred type: C
-var x = a.b.c;
-
-// Inferred type: C
-var y = a.b.c ??= new D();
-
-test() {
-  // Verify the types of x and y by trying to assign to them.
-  x = new C();
-
-
-
-
-
-}
-
-main() {}
diff --git a/tests/language_2/inference/accessor_ref_runtime_2_test.dart b/tests/language_2/inference/accessor_ref_runtime_2_test.dart
deleted file mode 100644
index 73f51bf6c55..00000000000
--- a/tests/language_2/inference/accessor_ref_runtime_2_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-/*@testedFeatures=inference*/
-library test;
-
-class A {
-  B b;
-}
-
-class B {
-  C get c => null;
-  void set c(C value) {}
-}
-
-class C {}
-
-class D extends C {}
-
-class E extends C {}
-
-// Inferred type: A
-var a = new A();
-
-// Inferred type: C
-var x = a.b.c;
-
-// Inferred type: C
-var y = a.b.c ??= new D();
-
-test() {
-  // Verify the types of x and y by trying to assign to them.
-
-  x = new E();
-
-
-
-
-}
-
-main() {}
diff --git a/tests/language_2/inference/accessor_ref_runtime_3_test.dart b/tests/language_2/inference/accessor_ref_runtime_3_test.dart
deleted file mode 100644
index 589abb2ec14..00000000000
--- a/tests/language_2/inference/accessor_ref_runtime_3_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-/*@testedFeatures=inference*/
-library test;
-
-class A {
-  B b;
-}
-
-class B {
-  C get c => null;
-  void set c(C value) {}
-}
-
-class C {}
-
-class D extends C {}
-
-class E extends C {}
-
-// Inferred type: A
-var a = new A();
-
-// Inferred type: C
-var x = a.b.c;
-
-// Inferred type: C
-var y = a.b.c ??= new D();
-
-test() {
-  // Verify the types of x and y by trying to assign to them.
-
-
-
-  y = new C();
-
-
-}
-
-main() {}
diff --git a/tests/language_2/inference/accessor_ref_runtime_4_test.dart b/tests/language_2/inference/accessor_ref_runtime_4_test.dart
deleted file mode 100644
index 5e0fb2e68db..00000000000
--- a/tests/language_2/inference/accessor_ref_runtime_4_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-/*@testedFeatures=inference*/
-library test;
-
-class A {
-  B b;
-}
-
-class B {
-  C get c => null;
-  void set c(C value) {}
-}
-
-class C {}
-
-class D extends C {}
-
-class E extends C {}
-
-// Inferred type: A
-var a = new A();
-
-// Inferred type: C
-var x = a.b.c;
-
-// Inferred type: C
-var y = a.b.c ??= new D();
-
-test() {
-  // Verify the types of x and y by trying to assign to them.
-
-
-
-
-  y = new E();
-
-}
-
-main() {}
diff --git a/tests/language_2/inference/accessor_ref_runtime_test.dart b/tests/language_2/inference/accessor_ref_runtime_test.dart
deleted file mode 100644
index 3adb3acffba..00000000000
--- a/tests/language_2/inference/accessor_ref_runtime_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-/*@testedFeatures=inference*/
-library test;
-
-class A {
-  B b;
-}
-
-class B {
-  C get c => null;
-  void set c(C value) {}
-}
-
-class C {}
-
-class D extends C {}
-
-class E extends C {}
-
-// Inferred type: A
-var a = new A();
-
-// Inferred type: C
-var x = a.b.c;
-
-// Inferred type: C
-var y = a.b.c ??= new D();
-
-test() {
-  // Verify the types of x and y by trying to assign to them.
-
-
-
-
-
-
-}
-
-main() {}
diff --git a/tests/language_2/inference/accessor_ref_test.dart b/tests/language_2/inference/accessor_ref_test.dart
deleted file mode 100644
index 3a789351062..00000000000
--- a/tests/language_2/inference/accessor_ref_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/*@testedFeatures=inference*/
-library test;
-
-class A {
-  B b;
-}
-
-class B {
-  C get c => null;
-  void set c(C value) {}
-}
-
-class C {}
-
-class D extends C {}
-
-class E extends C {}
-
-// Inferred type: A
-var a = new A();
-
-// Inferred type: C
-var x = a.b.c;
-
-// Inferred type: C
-var y = a.b.c ??= new D();
-
-test() {
-  // Verify the types of x and y by trying to assign to them.
-  x = new C();
-  x = new E();
-  x = new B();
-  //  ^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //      ^
-  // [cfe] A value of type 'B' can't be assigned to a variable of type 'C'.
-  y = new C();
-  y = new E();
-  y = new B();
-  //  ^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //      ^
-  // [cfe] A value of type 'B' can't be assigned to a variable of type 'C'.
-}
-
-main() {}
diff --git a/tests/language_2/inference/circularity_test.dart b/tests/language_2/inference/circularity_test.dart
deleted file mode 100644
index 5a6087c974e..00000000000
--- a/tests/language_2/inference/circularity_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-var x = () => y;
-//  ^
-// [analyzer] COMPILE_TIME_ERROR.TOP_LEVEL_CYCLE
-// [cfe] Can't infer the type of 'x': circularity found during type inference.
-var y = () => x;
-//  ^
-// [analyzer] COMPILE_TIME_ERROR.TOP_LEVEL_CYCLE
-
-void main() {
-  x;
-  y;
-}
diff --git a/tests/language_2/inference/inconsistent_inheritance_test.dart b/tests/language_2/inference/inconsistent_inheritance_test.dart
deleted file mode 100644
index 362a5c6c062..00000000000
--- a/tests/language_2/inference/inconsistent_inheritance_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  void f(Object x) {}
-}
-
-class B {
-  void f(String x) {}
-}
-
-class C extends A implements B {
-  void f(x) {}
-}
-
-void main() {}
diff --git a/tests/language_2/inference_update_2/no_such_method_restriction_disabled_lib.dart b/tests/language_2/inference_update_2/no_such_method_restriction_disabled_lib.dart
deleted file mode 100644
index d54773d4ef4..00000000000
--- a/tests/language_2/inference_update_2/no_such_method_restriction_disabled_lib.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Library used by `no_such_method_restriction_disabled_test.dart`.
-
-// @dart=2.9
-
-class Interface {
-  static int interfaceCount = 0;
-
-  int _privateField = 100;
-
-  int get _privateGetter {
-    interfaceCount++;
-    return 101;
-  }
-
-  set _privateSetter(int value) {
-    interfaceCount++;
-  }
-
-  int _privateMethod() {
-    interfaceCount++;
-    return 102;
-  }
-
-  int publicField = 103;
-
-  int get publicGetter {
-    interfaceCount++;
-    return 104;
-  }
-
-  set publicSetter(int value) {
-    interfaceCount++;
-  }
-
-  int publicMethod() {
-    interfaceCount++;
-    return 105;
-  }
-
-  static int getPrivateField(Interface x) => x._privateField;
-
-  static void setPrivateField(Interface x) => x._privateField = 106;
-
-  static int callPrivateGetter(Interface x) => x._privateGetter;
-
-  static void callPrivateSetter(Interface x) => x._privateSetter = 107;
-
-  static int callPrivateMethod(Interface x) => x._privateMethod();
-
-  static int getPublicField(Interface x) => x.publicField;
-
-  static void setPublicField(Interface x) => x.publicField = 108;
-
-  static int callPublicGetter(Interface x) => x.publicGetter;
-
-  static void callPublicSetter(Interface x) => x.publicSetter = 109;
-
-  static int callPublicMethod(Interface x) => x.publicMethod();
-}
-
-class Dynamic {
-  static int getPrivateField(dynamic x) => x._privateField;
-
-  static void setPrivateField(dynamic x) => x._privateField = 103;
-
-  static int callPrivateGetter(dynamic x) => x._privateGetter;
-
-  static void callPrivateSetter(dynamic x) => x._privateSetter = 104;
-
-  static int callPrivateMethod(dynamic x) => x._privateMethod();
-
-  static int getPublicField(dynamic x) => x.publicField;
-
-  static void setPublicField(dynamic x) => x.publicField = 108;
-
-  static int callPublicGetter(dynamic x) => x.publicGetter;
-
-  static void callPublicSetter(dynamic x) => x.publicSetter = 109;
-
-  static int callPublicMethod(dynamic x) => x.publicMethod();
-}
-
-class Nsm {
-  int otherNsmCount = 0;
-
-  @override
-  noSuchMethod(Invocation invocation) {
-    return otherNsmCount++;
-  }
-}
-
-class Stubs implements Interface {
-  int stubsNsmCount = 0;
-
-  @override
-  noSuchMethod(Invocation invocation) {
-    return stubsNsmCount++;
-  }
-}
diff --git a/tests/language_2/inference_update_2/no_such_method_restriction_disabled_test.dart b/tests/language_2/inference_update_2/no_such_method_restriction_disabled_test.dart
deleted file mode 100644
index fa1387f45a4..00000000000
--- a/tests/language_2/inference_update_2/no_such_method_restriction_disabled_test.dart
+++ /dev/null
@@ -1,413 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Tests that the behavior of forwarding stubs to call noSuchMethod is
-// restricted to public members and members from the same library; forwarding
-// stubs for private members from other libraries always throw.
-//
-// Without this, field promotion would not be sound.  For example, in the code
-// below, each attempt to get `_i` from an instance of class `B` would result in
-// an invocation of `B.noSuchMethod`, so evaluation of `a._i` at (1) would yield
-// `0`, and evaluation of `a._i` at (2) would yield `null`.
-//
-//     main.dart:
-//       import 'other.dart';
-//       class B implements A {
-//         bool b = false;
-//         @override
-//         dynamic noSuchMethod(Invocation invocation) => (b = !b) ? 0 : null;
-//       }
-//       main() => foo(new B());
-//     other.dart:
-//       class A {
-//         final int? _i;
-//         A(this._i);
-//       }
-//       void foo(A a) {
-//         if (a._i != null) { // (1)
-//           print(a._i + 1);  // (2)
-//         }
-//       }
-//
-// Whereas with the restriction, any attempt to get `_i` from an instance of
-// class `B` would result in an exception, so the code would never reach (2).
-//
-// Since this behavior involves interactions among libraries, we have to think
-// carefully about how it is affected by language versioning.  There are two
-// issues to consider:
-//
-// 1. Should the forwarding stub throw even if the language feature
-//    "inference-update-2" is disabled in the library containing the class
-//    that's causing the forwarding stub to be generated?  We need to answer
-//    this question with a "yes", otherwise a class declaration in a library
-//    with an older language version could still ruin the soundness of field
-//    promotion in some other library.
-//
-// 2. Should the forwarding stub throw even if the language feature
-//    "inference-update-2" is disabled in the library containing the private
-//    member in question?  Our answer to this question doesn't affect soundness,
-//    because field promotion can't happen in libraries for which the language
-//    feature is disabled.  However, we still answer "yes", because otherwise an
-//    attempt to upgrade to a newer language version in one library might cause
-//    unexpected behavior changes in other libraries that import it, and we
-//    don't want that to happen.
-//
-// This file covers cases where the language feature "inference-update-2" is
-// disabled.
-
-// @dart=2.9
-
-import 'package:expect/expect.dart';
-
-import 'no_such_method_restriction_disabled_lib.dart' as lib;
-
-class Interface {
-  static int interfaceCount = 0;
-
-  int _privateField = 100;
-
-  int get _privateGetter {
-    interfaceCount++;
-    return 101;
-  }
-
-  set _privateSetter(int value) {
-    interfaceCount++;
-  }
-
-  int _privateMethod() {
-    interfaceCount++;
-    return 102;
-  }
-
-  int publicField = 103;
-
-  int get publicGetter {
-    interfaceCount++;
-    return 104;
-  }
-
-  set publicSetter(int value) {
-    interfaceCount++;
-  }
-
-  int publicMethod() {
-    interfaceCount++;
-    return 105;
-  }
-
-  static int getPrivateField(Interface x) => x._privateField;
-
-  static void setPrivateField(Interface x) => x._privateField = 106;
-
-  static int callPrivateGetter(Interface x) => x._privateGetter;
-
-  static void callPrivateSetter(Interface x) => x._privateSetter = 107;
-
-  static int callPrivateMethod(Interface x) => x._privateMethod();
-
-  static int getPublicField(Interface x) => x.publicField;
-
-  static void setPublicField(Interface x) => x.publicField = 108;
-
-  static int callPublicGetter(Interface x) => x.publicGetter;
-
-  static void callPublicSetter(Interface x) => x.publicSetter = 109;
-
-  static int callPublicMethod(Interface x) => x.publicMethod();
-}
-
-class Dynamic {
-  static int getPrivateField(dynamic x) => x._privateField;
-
-  static void setPrivateField(dynamic x) => x._privateField = 103;
-
-  static int callPrivateGetter(dynamic x) => x._privateGetter;
-
-  static void callPrivateSetter(dynamic x) => x._privateSetter = 104;
-
-  static int callPrivateMethod(dynamic x) => x._privateMethod();
-
-  static int getPublicField(dynamic x) => x.publicField;
-
-  static void setPublicField(dynamic x) => x.publicField = 108;
-
-  static int callPublicGetter(dynamic x) => x.publicGetter;
-
-  static void callPublicSetter(dynamic x) => x.publicSetter = 109;
-
-  static int callPublicMethod(dynamic x) => x.publicMethod();
-}
-
-/// The tests in this class cover the case where the members are in the same
-/// library as the forwarding stubs.  All member invocations should be
-/// dispatched to noSuchMethod.
-class Local implements Interface {
-  int _localNsmCount = 0;
-
-  @override
-  noSuchMethod(Invocation invocation) {
-    return _localNsmCount++;
-  }
-
-  static void testPrivate() {
-    var x = Local();
-    Expect.equals(0, Interface.getPrivateField(x));
-    Expect.equals(1, x._localNsmCount);
-    Interface.setPrivateField(x);
-    Expect.equals(2, x._localNsmCount);
-    Expect.equals(2, Interface.callPrivateGetter(x));
-    Expect.equals(3, x._localNsmCount);
-    Interface.callPrivateSetter(x);
-    Expect.equals(4, x._localNsmCount);
-    Expect.equals(4, Interface.callPrivateMethod(x));
-    Expect.equals(5, x._localNsmCount);
-    Expect.equals(0, Interface.interfaceCount);
-  }
-
-  static void testPublic() {
-    var x = Local();
-    Expect.equals(0, Interface.getPublicField(x));
-    Expect.equals(1, x._localNsmCount);
-    Interface.setPublicField(x);
-    Expect.equals(2, x._localNsmCount);
-    Expect.equals(2, Interface.callPublicGetter(x));
-    Expect.equals(3, x._localNsmCount);
-    Interface.callPublicSetter(x);
-    Expect.equals(4, x._localNsmCount);
-    Expect.equals(4, Interface.callPublicMethod(x));
-    Expect.equals(5, x._localNsmCount);
-    Expect.equals(0, Interface.interfaceCount);
-  }
-
-  static void testPrivateDynamic() {
-    var x = Local();
-    Expect.equals(0, Dynamic.getPrivateField(x));
-    Expect.equals(1, x._localNsmCount);
-    Dynamic.setPrivateField(x);
-    Expect.equals(2, x._localNsmCount);
-    Expect.equals(2, Dynamic.callPrivateGetter(x));
-    Expect.equals(3, x._localNsmCount);
-    Dynamic.callPrivateSetter(x);
-    Expect.equals(4, x._localNsmCount);
-    Expect.equals(4, Dynamic.callPrivateMethod(x));
-    Expect.equals(5, x._localNsmCount);
-  }
-
-  static void testPublicDynamic() {
-    var x = Local();
-    Expect.equals(0, Dynamic.getPublicField(x));
-    Expect.equals(1, x._localNsmCount);
-    Dynamic.setPublicField(x);
-    Expect.equals(2, x._localNsmCount);
-    Expect.equals(2, Dynamic.callPublicGetter(x));
-    Expect.equals(3, x._localNsmCount);
-    Dynamic.callPublicSetter(x);
-    Expect.equals(4, x._localNsmCount);
-    Expect.equals(4, Dynamic.callPublicMethod(x));
-    Expect.equals(5, x._localNsmCount);
-  }
-}
-
-/// The tests in this class cover the case where both noSuchMethod and the other
-/// members are in the same library as the forwarding stubs, but that library is
-/// not the same as the library containing this class.  All member invocations
-/// should be dispatched to noSuchMethod.
-class RemoteStubs extends lib.Stubs {
-  static void testPrivate() {
-    var x = RemoteStubs();
-    Expect.equals(0, lib.Interface.getPrivateField(x));
-    Expect.equals(1, x.stubsNsmCount);
-    lib.Interface.setPrivateField(x);
-    Expect.equals(2, x.stubsNsmCount);
-    Expect.equals(2, lib.Interface.callPrivateGetter(x));
-    Expect.equals(3, x.stubsNsmCount);
-    lib.Interface.callPrivateSetter(x);
-    Expect.equals(4, x.stubsNsmCount);
-    Expect.equals(4, lib.Interface.callPrivateMethod(x));
-    Expect.equals(5, x.stubsNsmCount);
-    Expect.equals(0, lib.Interface.interfaceCount);
-  }
-
-  static void testPublic() {
-    var x = RemoteStubs();
-    Expect.equals(0, lib.Interface.getPublicField(x));
-    Expect.equals(1, x.stubsNsmCount);
-    lib.Interface.setPublicField(x);
-    Expect.equals(2, x.stubsNsmCount);
-    Expect.equals(2, lib.Interface.callPublicGetter(x));
-    Expect.equals(3, x.stubsNsmCount);
-    lib.Interface.callPublicSetter(x);
-    Expect.equals(4, x.stubsNsmCount);
-    Expect.equals(4, lib.Interface.callPublicMethod(x));
-    Expect.equals(5, x.stubsNsmCount);
-    Expect.equals(0, lib.Interface.interfaceCount);
-  }
-
-  static void testPrivateDynamic() {
-    var x = RemoteStubs();
-    Expect.equals(0, lib.Dynamic.getPrivateField(x));
-    Expect.equals(1, x.stubsNsmCount);
-    lib.Dynamic.setPrivateField(x);
-    Expect.equals(2, x.stubsNsmCount);
-    Expect.equals(2, lib.Dynamic.callPrivateGetter(x));
-    Expect.equals(3, x.stubsNsmCount);
-    lib.Dynamic.callPrivateSetter(x);
-    Expect.equals(4, x.stubsNsmCount);
-    Expect.equals(4, lib.Dynamic.callPrivateMethod(x));
-    Expect.equals(5, x.stubsNsmCount);
-  }
-
-  static void testPublicDynamic() {
-    var x = RemoteStubs();
-    Expect.equals(0, lib.Dynamic.getPublicField(x));
-    Expect.equals(1, x.stubsNsmCount);
-    lib.Dynamic.setPublicField(x);
-    Expect.equals(2, x.stubsNsmCount);
-    Expect.equals(2, lib.Dynamic.callPublicGetter(x));
-    Expect.equals(3, x.stubsNsmCount);
-    lib.Dynamic.callPublicSetter(x);
-    Expect.equals(4, x.stubsNsmCount);
-    Expect.equals(4, lib.Dynamic.callPublicMethod(x));
-    Expect.equals(5, x.stubsNsmCount);
-  }
-}
-
-/// The tests in this class cover the case where noSuchMember is local, but the
-/// other members are in a different library from the forwarding stubs.  All
-/// public member invocations should be dispatched to noSuchMethod; all private
-/// member invocations should throw.
-class LocalNsm implements lib.Interface {
-  int _localNsmCount = 0;
-
-  @override
-  noSuchMethod(Invocation invocation) {
-    return _localNsmCount++;
-  }
-
-  static void testPrivate() {
-    var x = LocalNsm();
-    Expect.throwsNoSuchMethodError(() => lib.Interface.getPrivateField(x));
-    Expect.throwsNoSuchMethodError(() => lib.Interface.setPrivateField(x));
-    Expect.throwsNoSuchMethodError(() => lib.Interface.callPrivateGetter(x));
-    Expect.throwsNoSuchMethodError(() => lib.Interface.callPrivateSetter(x));
-    Expect.throwsNoSuchMethodError(() => lib.Interface.callPrivateMethod(x));
-    Expect.equals(0, x._localNsmCount);
-    Expect.equals(0, lib.Interface.interfaceCount);
-  }
-
-  static void testPublic() {
-    var x = LocalNsm();
-    Expect.equals(0, lib.Interface.getPublicField(x));
-    Expect.equals(1, x._localNsmCount);
-    lib.Interface.setPublicField(x);
-    Expect.equals(2, x._localNsmCount);
-    Expect.equals(2, lib.Interface.callPublicGetter(x));
-    Expect.equals(3, x._localNsmCount);
-    lib.Interface.callPublicSetter(x);
-    Expect.equals(4, x._localNsmCount);
-    Expect.equals(4, lib.Interface.callPublicMethod(x));
-    Expect.equals(5, x._localNsmCount);
-    Expect.equals(0, lib.Interface.interfaceCount);
-  }
-
-  static void testPrivateDynamic() {
-    var x = LocalNsm();
-    Expect.throwsNoSuchMethodError(() => lib.Dynamic.getPrivateField(x));
-    Expect.throwsNoSuchMethodError(() => lib.Dynamic.setPrivateField(x));
-    Expect.throwsNoSuchMethodError(() => lib.Dynamic.callPrivateGetter(x));
-    Expect.throwsNoSuchMethodError(() => lib.Dynamic.callPrivateSetter(x));
-    Expect.throwsNoSuchMethodError(() => lib.Dynamic.callPrivateMethod(x));
-    Expect.equals(0, x._localNsmCount);
-  }
-
-  static void testPublicDynamic() {
-    var x = LocalNsm();
-    Expect.equals(0, lib.Dynamic.getPublicField(x));
-    Expect.equals(1, x._localNsmCount);
-    lib.Dynamic.setPublicField(x);
-    Expect.equals(2, x._localNsmCount);
-    Expect.equals(2, lib.Dynamic.callPublicGetter(x));
-    Expect.equals(3, x._localNsmCount);
-    lib.Dynamic.callPublicSetter(x);
-    Expect.equals(4, x._localNsmCount);
-    Expect.equals(4, lib.Dynamic.callPublicMethod(x));
-    Expect.equals(5, x._localNsmCount);
-  }
-}
-
-/// The tests in this class cover the case where both noSuchMember and the other
-/// members are in a different library from the forwarding stubs.  All public
-/// member invocations should be dispatched to noSuchMethod; all private member
-/// invocations should throw.
-class RemoteNsm extends lib.Nsm implements lib.Interface {
-  static void testPrivate() {
-    var x = RemoteNsm();
-    Expect.throwsNoSuchMethodError(() => lib.Interface.getPrivateField(x));
-    Expect.throwsNoSuchMethodError(() => lib.Interface.setPrivateField(x));
-    Expect.throwsNoSuchMethodError(() => lib.Interface.callPrivateGetter(x));
-    Expect.throwsNoSuchMethodError(() => lib.Interface.callPrivateSetter(x));
-    Expect.throwsNoSuchMethodError(() => lib.Interface.callPrivateMethod(x));
-    Expect.equals(0, x.otherNsmCount);
-    Expect.equals(0, lib.Interface.interfaceCount);
-  }
-
-  static void testPublic() {
-    var x = RemoteNsm();
-    Expect.equals(0, lib.Interface.getPublicField(x));
-    Expect.equals(1, x.otherNsmCount);
-    lib.Interface.setPublicField(x);
-    Expect.equals(2, x.otherNsmCount);
-    Expect.equals(2, lib.Interface.callPublicGetter(x));
-    Expect.equals(3, x.otherNsmCount);
-    lib.Interface.callPublicSetter(x);
-    Expect.equals(4, x.otherNsmCount);
-    Expect.equals(4, lib.Interface.callPublicMethod(x));
-    Expect.equals(5, x.otherNsmCount);
-    Expect.equals(0, lib.Interface.interfaceCount);
-  }
-
-  static void testPrivateDynamic() {
-    var x = RemoteNsm();
-    Expect.throwsNoSuchMethodError(() => lib.Dynamic.getPrivateField(x));
-    Expect.throwsNoSuchMethodError(() => lib.Dynamic.setPrivateField(x));
-    Expect.throwsNoSuchMethodError(() => lib.Dynamic.callPrivateGetter(x));
-    Expect.throwsNoSuchMethodError(() => lib.Dynamic.callPrivateSetter(x));
-    Expect.throwsNoSuchMethodError(() => lib.Dynamic.callPrivateMethod(x));
-    Expect.equals(0, x.otherNsmCount);
-  }
-
-  static void testPublicDynamic() {
-    var x = RemoteNsm();
-    Expect.equals(0, lib.Dynamic.getPublicField(x));
-    Expect.equals(1, x.otherNsmCount);
-    lib.Dynamic.setPublicField(x);
-    Expect.equals(2, x.otherNsmCount);
-    Expect.equals(2, lib.Dynamic.callPublicGetter(x));
-    Expect.equals(3, x.otherNsmCount);
-    lib.Dynamic.callPublicSetter(x);
-    Expect.equals(4, x.otherNsmCount);
-    Expect.equals(4, lib.Dynamic.callPublicMethod(x));
-    Expect.equals(5, x.otherNsmCount);
-  }
-}
-
-main() {
-  Local.testPrivate();
-  Local.testPublic();
-  Local.testPrivateDynamic();
-  Local.testPublicDynamic();
-  RemoteStubs.testPrivate();
-  RemoteStubs.testPublic();
-  RemoteStubs.testPrivateDynamic();
-  RemoteStubs.testPublicDynamic();
-  LocalNsm.testPrivate();
-  LocalNsm.testPublic();
-  LocalNsm.testPrivateDynamic();
-  LocalNsm.testPublicDynamic();
-  RemoteNsm.testPrivate();
-  RemoteNsm.testPublic();
-  RemoteNsm.testPrivateDynamic();
-  RemoteNsm.testPublicDynamic();
-}
diff --git a/tests/language_2/inference_update_2/no_such_method_restriction_stack_trace_lib1.dart b/tests/language_2/inference_update_2/no_such_method_restriction_stack_trace_lib1.dart
deleted file mode 100644
index 1b981e4acbd..00000000000
--- a/tests/language_2/inference_update_2/no_such_method_restriction_stack_trace_lib1.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Library used by 'no_such_method_restriction_stack_trace_test.dart'
-
-// @dart=2.9
-
-import 'no_such_method_restriction_stack_trace_lib2.dart';
-
-class Test extends Nsm implements Interface {}
diff --git a/tests/language_2/inference_update_2/no_such_method_restriction_stack_trace_lib2.dart b/tests/language_2/inference_update_2/no_such_method_restriction_stack_trace_lib2.dart
deleted file mode 100644
index a6d6c4183ca..00000000000
--- a/tests/language_2/inference_update_2/no_such_method_restriction_stack_trace_lib2.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Library used by 'no_such_method_restriction_stack_trace_test.dart'
-
-// @dart=2.9
-
-import 'no_such_method_restriction_stack_trace_lib2.dart';
-
-class Nsm {
-  @override
-  noSuchMethod(Invocation invocation) {}
-}
-
-class Interface {
-  void _privateMethod() {}
-}
-
-void callPrivateMethod(Interface x) {
-  x._privateMethod();
-}
diff --git a/tests/language_2/inference_update_2/no_such_method_restriction_stack_trace_test.dart b/tests/language_2/inference_update_2/no_such_method_restriction_stack_trace_test.dart
deleted file mode 100644
index e693e8170f5..00000000000
--- a/tests/language_2/inference_update_2/no_such_method_restriction_stack_trace_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Tests that when a noSuchMethod forwarder throws an exception due to the fact
-// that the forwarding stub is for a private member of another library, the
-// resulting stack trace points to the class for which the noSuchMethod
-// forwarder was created.
-
-// @dart=2.9
-
-import 'package:expect/expect.dart';
-
-import 'no_such_method_restriction_stack_trace_lib1.dart';
-import 'no_such_method_restriction_stack_trace_lib2.dart';
-
-main() {
-  try {
-    callPrivateMethod(Test());
-  } on NoSuchMethodError catch (e, st) {
-    var stackString = st.toString();
-    if (stackString.contains('.js:') || !stackString.contains('.dart')) {
-      // Obfuscated stacktrace.  We don't expect to be able to resolve Dart
-      // files from this stack trace, so just let the test pass.
-      //
-      // Note: it's not sufficient to check for the absence of `.dart` in the
-      // stacktrace, because obfuscated JavaScript stacktraces often contain
-      // `self.dartMainRunner`.
-    } else {
-      Expect.contains(
-          'no_such_method_restriction_stack_trace_lib1.dart', stackString);
-    }
-  }
-}
diff --git a/tests/language_2/initializer_assert/README.md b/tests/language_2/initializer_assert/README.md
deleted file mode 100644
index 44d18b33447..00000000000
--- a/tests/language_2/initializer_assert/README.md
+++ /dev/null
@@ -1,7 +0,0 @@
-# Feature tests for assert in initializer lists
-
-This directory was created in order to hold tests pertaining to the Dart
-feature which allows an assertion (`assert(...)`) to occur in the
-initializer list of a constructor, including `const` constructors.  For
-more details, please check the
-[language specification update](https://github.com/dart-lang/sdk/commit/609d26a2274ccde0f74725f4df7e081ebc8ea020).
diff --git a/tests/language_2/initializing_formal/access_test.dart b/tests/language_2/initializing_formal/access_test.dart
deleted file mode 100644
index 4db10c1fdfc..00000000000
--- a/tests/language_2/initializing_formal/access_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C {
-  final int x;
-  final int y;
-
-  const C.constant(this.x) : y = x + 1;
-
-  C(this.x) : y = x + 1 {
-    int z = x + 2;
-    assert(z == y + 1);
-  }
-}
-
-main() {
-  C c = new C(2);
-  Expect.equals(c.x, 2);
-  Expect.equals(c.y, 3);
-  const C cc = const C.constant(4);
-  Expect.equals(cc.x, 4);
-  Expect.equals(cc.y, 5);
-}
diff --git a/tests/language_2/initializing_formal/capture_test.dart b/tests/language_2/initializing_formal/capture_test.dart
deleted file mode 100644
index 3eb86f60ab5..00000000000
--- a/tests/language_2/initializing_formal/capture_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  var x, y;
-  A(this.x) : y = (() => x);
-}
-
-main() {
-  A a = new A(2);
-  a.x = 3;
-  Expect.equals(a.x, 3);
-  Expect.equals(a.y(), 2);
-}
diff --git a/tests/language_2/initializing_formal/final_test.dart b/tests/language_2/initializing_formal/final_test.dart
deleted file mode 100644
index e780a89923b..00000000000
--- a/tests/language_2/initializing_formal/final_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  var x, y;
-  // This should cause an error because `x` is final when accessed as an
-  // initializing formal.
-  A(this.x)
-      : y = (() {
-          x = 3;
-//        ^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_LOCAL
-// [cfe] Can't assign to the final variable 'x'.
-        });
-}
-
-main() {}
diff --git a/tests/language_2/initializing_formal/promotion_test.dart b/tests/language_2/initializing_formal/promotion_test.dart
deleted file mode 100644
index bde1d8b6d56..00000000000
--- a/tests/language_2/initializing_formal/promotion_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class B {}
-
-class A {
-  B x, y;
-  // Promotion occurs for the initializing formal because C <: B.
-  A(this.x) : y = (x is C) ? x.x : x;
-}
-
-class C extends A implements B {
-  C(B x) : super(x);
-}
-
-main() {
-  C c = new C(null);
-  C cc = new C(c);
-  Expect.equals(c.y, null);
-  Expect.equals(cc.y, null);
-}
diff --git a/tests/language_2/initializing_formal/scope_test.dart b/tests/language_2/initializing_formal/scope_test.dart
deleted file mode 100644
index c94bf59050f..00000000000
--- a/tests/language_2/initializing_formal/scope_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Duplicate definition checks for `this.x` will check the scopes associated
-// with the constructor, not all enclosing scopes; so this is not a conflict.
-var x;
-
-class A {
-  var x;
-  A(this.x) {
-    // In the body the field is in scope, not the initializing formal;
-    // so we can use the setter.
-    x += 1;
-  }
-}
-
-main() {
-  A a = new A(2);
-  Expect.equals(a.x, 3);
-}
diff --git a/tests/language_2/initializing_formal/type_annotation_runtime_test.dart b/tests/language_2/initializing_formal/type_annotation_runtime_test.dart
deleted file mode 100644
index 5f5b0b7129c..00000000000
--- a/tests/language_2/initializing_formal/type_annotation_runtime_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Testing the static checks for type annotations on initializing formals.
-
-class C {
-  num a;
-  C.sameType(num this.a);
-  C.subType(int this.a);
-
-
-}
-
-main() {
-  new C.sameType(3.14);
-  new C.subType(42);
-
-
-}
diff --git a/tests/language_2/initializing_formal/type_annotation_test.dart b/tests/language_2/initializing_formal/type_annotation_test.dart
deleted file mode 100644
index 312baab0be5..00000000000
--- a/tests/language_2/initializing_formal/type_annotation_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing the static checks for type annotations on initializing formals.
-
-class C {
-  num a;
-  C.sameType(num this.a);
-  C.subType(int this.a);
-  C.superType(dynamic this.a);
-  //          ^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.FIELD_INITIALIZING_FORMAL_NOT_ASSIGNABLE
-  //                       ^
-  // [cfe] The type of parameter 'a', 'dynamic' is not a subtype of the corresponding field's type, 'num'.
-  C.unrelatedType(String this.a);
-  //              ^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.FIELD_INITIALIZING_FORMAL_NOT_ASSIGNABLE
-  //                          ^
-  // [cfe] The type of parameter 'a', 'String' is not a subtype of the corresponding field's type, 'num'.
-}
-
-main() {
-  new C.sameType(3.14);
-  new C.subType(42);
-  new C.superType([]);
-  new C.unrelatedType('String');
-}
diff --git a/tests/language_2/initializing_formal/type_test.dart b/tests/language_2/initializing_formal/type_test.dart
deleted file mode 100644
index aacb74157d2..00000000000
--- a/tests/language_2/initializing_formal/type_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  num x;
-  double y;
-  // Finding the type of an initializing formal: should cause an error
-  // in the initializer but not the body, because the former has type
-  // `int` and the latter has type `num`.
-  A(int this.x) : y = x {
-    //                ^
-    // [analyzer] COMPILE_TIME_ERROR.FIELD_INITIALIZER_NOT_ASSIGNABLE
-    // [cfe] A value of type 'int' can't be assigned to a variable of type 'double'.
-    y = x;
-  }
-}
-
-main() {
-  A a = new A(null);
-  Expect.equals(a.x, null);
-  Expect.equals(a.y, null);
-}
diff --git a/tests/language_2/instance/call_wrong_argument_count_test.dart b/tests/language_2/instance/call_wrong_argument_count_test.dart
deleted file mode 100644
index b900f948548..00000000000
--- a/tests/language_2/instance/call_wrong_argument_count_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Test mismatch in argument counts.
-
-class Niederhorn {
-  int goodCall(int a, int b, int c) {
-    return a + b;
-  }
-}
-
-main() {
-  var niederhorn = Niederhorn();
-  niederhorn.goodCall(1, 2, 3);
-  niederhorn.goodCall(1, 2, 3, 4);
-  //                           ^
-  // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS
-  //                 ^^^^^^^^^^^^
-  // [cfe] Too many positional arguments: 3 allowed, but 4 found.
-}
diff --git a/tests/language_2/instance/compound_assignment_operator_test.dart b/tests/language_2/instance/compound_assignment_operator_test.dart
deleted file mode 100644
index 922d74feac4..00000000000
--- a/tests/language_2/instance/compound_assignment_operator_test.dart
+++ /dev/null
@@ -1,88 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test correct instance compound assignment operator.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  A() : f = 2 {}
-  var f;
-  operator [](index) => f;
-  operator []=(index, value) => f = value;
-
-  var _g = 0;
-  var gGetCount = 0;
-  var gSetCount = 0;
-  get g {
-    gGetCount++;
-    return _g;
-  }
-
-  set g(value) {
-    gSetCount++;
-    _g = value;
-  }
-}
-
-class B {
-  B()
-      : _a = new A(),
-        count = 0 {}
-  get a {
-    count++;
-    return _a;
-  }
-
-  var _a;
-  var count;
-}
-
-var globalA;
-var fooCounter = 0;
-foo() {
-  fooCounter++;
-  return globalA;
-}
-
-main() {
-  B b = new B();
-  Expect.equals(0, b.count);
-  Expect.equals(2, b.a.f);
-  Expect.equals(1, b.count);
-  var o = b.a;
-  Expect.equals(2, b.count);
-  b.a.f = 1;
-  Expect.equals(3, b.count);
-  Expect.equals(1, b._a.f);
-  b.a.f += 1;
-  Expect.equals(4, b.count);
-  Expect.equals(2, b._a.f);
-
-  b.count = 0;
-  b._a.f = 2;
-  Expect.equals(0, b.count);
-  Expect.equals(2, b.a[0]);
-  Expect.equals(1, b.count);
-  o = b.a;
-  Expect.equals(2, b.count);
-  b.a[0] = 1;
-  Expect.equals(3, b.count);
-  Expect.equals(1, b._a.f);
-  b.a[0] += 1;
-  Expect.equals(4, b.count);
-  Expect.equals(2, b._a.f);
-
-  b._a.g++;
-  Expect.equals(1, b._a.gGetCount);
-  Expect.equals(1, b._a.gSetCount);
-  Expect.equals(1, b._a._g);
-
-  globalA = b._a;
-  globalA.f = 0;
-  foo().f += 1;
-  Expect.equals(1, fooCounter);
-  Expect.equals(1, globalA.f);
-}
diff --git a/tests/language_2/instance/field_initializer_test.dart b/tests/language_2/instance/field_initializer_test.dart
deleted file mode 100644
index 8063b1793db..00000000000
--- a/tests/language_2/instance/field_initializer_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  int x = 1;
-  A() {}
-  A.reassign() : x = 2 {}
-  A.reassign2(this.x) {}
-}
-
-class B extends A {
-  B() : super() {}
-  B.reassign() : super.reassign() {}
-  B.reassign2() : super.reassign2(3) {}
-}
-
-class InstanceFieldInitializerTest {
-  static testMain() {
-    Expect.equals(1, new A().x);
-    Expect.equals(2, new A.reassign().x);
-    Expect.equals(3, new A.reassign2(3).x);
-
-    Expect.equals(1, new B().x);
-    Expect.equals(2, new B.reassign().x);
-    Expect.equals(3, new B.reassign2().x);
-  }
-}
-
-main() {
-  InstanceFieldInitializerTest.testMain();
-}
diff --git a/tests/language_2/instance/incr_deopt_test.dart b/tests/language_2/instance/incr_deopt_test.dart
deleted file mode 100644
index 36a5232ee67..00000000000
--- a/tests/language_2/instance/incr_deopt_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Check correct deoptimization of instance field increment.
-
-main() {
-  var a = new A();
-  var aa = new A();
-  for (int i = 0; i < 20; i++) {
-    a.Incr();
-    myIncr(aa);
-    conditionalIncr(false, a);
-  }
-  Expect.equals(20, a.f);
-  Expect.equals(20, aa.f);
-  a.f = 1.0;
-  // Deoptimize ++ part of instance increment.
-  a.Incr();
-  Expect.equals(2.0, a.f);
-  var b = new B();
-  // Deoptimize getfield part of instance increment.
-  myIncr(b);
-  Expect.equals(1.0, b.f);
-  // Deoptimize since no type feedback was collected.
-  var old = a.f;
-  conditionalIncr(true, a);
-  Expect.equals(old + 1, a.f);
-}
-
-myIncr(var a) {
-  a.f++;
-}
-
-conditionalIncr(var f, var a) {
-  if (f) {
-    a.f++;
-  }
-}
-
-class A {
-  A() : f = 0;
-  Incr() {
-    f++;
-  }
-
-  var f;
-}
-
-class B {
-  B() : f = 0;
-  var f;
-}
diff --git a/tests/language_2/instance/inline_test.dart b/tests/language_2/instance/inline_test.dart
deleted file mode 100644
index 406752ba59c..00000000000
--- a/tests/language_2/instance/inline_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test inlining of assignments in parameter passing. If [StringScanner.charAt]
-// is inlined, the argument expression `++byteOffset` should not be duplicated.
-
-class StringScanner {
-  final String string;
-  int byteOffset = -1;
-
-  StringScanner(this.string);
-
-  int nextByte() => charAt(++byteOffset);
-
-  int charAt(index) => (string.length > index) ? string.codeUnitAt(index) : -1;
-}
-
-void main() {
-  var scanner = new StringScanner('az9');
-  Expect.equals(0x61, scanner.nextByte()); // Expect a.
-  Expect.equals(0x7A, scanner.nextByte()); // Expect z.
-  Expect.equals(0x39, scanner.nextByte()); // Expect 9.
-  Expect.equals(-1, scanner.nextByte());
-}
diff --git a/tests/language_2/instance/method2_test.dart b/tests/language_2/instance/method2_test.dart
deleted file mode 100644
index 620ae2bf997..00000000000
--- a/tests/language_2/instance/method2_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Check that we correctly flag the use of an instance method (as a closure)
-/// from a static method.
-
-class Goofy {
-  String instMethod() {
-    return "woof";
-  }
-
-  static Function bark() {
-    return instMethod;
-    //     ^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.INSTANCE_MEMBER_ACCESS_FROM_STATIC
-    // [cfe] Undefined name 'instMethod'.
-  }
-}
-
-main() {
-  var s = Goofy.bark();
-}
diff --git a/tests/language_2/instance/method_test.dart b/tests/language_2/instance/method_test.dart
deleted file mode 100644
index 9ac86ac25e2..00000000000
--- a/tests/language_2/instance/method_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Check that we correctly flag the use of an instance method from a static
-/// method.
-
-class Goofy {
-  String instMethod() {
-    return "woof";
-  }
-
-  static String bark() {
-    return instMethod();
-    //     ^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.INSTANCE_MEMBER_ACCESS_FROM_STATIC
-    // [cfe] Method not found: 'instMethod'.
-  }
-}
-
-main() {
-  Goofy.bark();
-}
diff --git a/tests/language_2/instantiate_to_bound/README.md b/tests/language_2/instantiate_to_bound/README.md
deleted file mode 100644
index a015f2ed696..00000000000
--- a/tests/language_2/instantiate_to_bound/README.md
+++ /dev/null
@@ -1,12 +0,0 @@
-# Feature tests for instantiation to bounds, and super-bounded types
-
-This directory was created in order to hold tests pertaining to the
-Dart feature _instantiate to bound_, which provides inference of
-default values for omitted type arguments. In order to handle
-F-bounded type parameters without introducing infinite types, this
-feature relies on another feature, _super-bounded types_, which is
-therefore also in focus for tests in this directory. For more details,
-please check the feature specifications on
-[super-bounded types](https://github.com/dart-lang/sdk/blob/main/docs/language/informal/super-bounded-types.md)
-and on
-[instantiate to bound](https://github.com/dart-lang/sdk/blob/main/docs/language/informal/instantiate-to-bound.md).
\ No newline at end of file
diff --git a/tests/language_2/interceptor/interceptor2_test.dart b/tests/language_2/interceptor/interceptor2_test.dart
deleted file mode 100644
index 9233e294d06..00000000000
--- a/tests/language_2/interceptor/interceptor2_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Regression test for issue http://dartbug.com/6903: dart2js used to
-// not generate an interceptor forwarder when a getter call and a
-// method call on an intercepted method were both used.
-
-class A {
-  get iterator => () => 499;
-}
-
-main() {
-  var a = <dynamic>[
-    new A(),
-    [1, 1]
-  ];
-  Expect.equals(499, a[0].iterator());
-  Expect.equals(499, (a[0].iterator)());
-  for (var i in a[1]) {
-    Expect.equals(1, i);
-  }
-}
diff --git a/tests/language_2/interceptor/interceptor3_test.dart b/tests/language_2/interceptor/interceptor3_test.dart
deleted file mode 100644
index 6c688b000c6..00000000000
--- a/tests/language_2/interceptor/interceptor3_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that code motion in the presence of interceptors work in dart2js.
-
-main() {
-  var a = <dynamic>[2, '2'];
-  var b = a[1];
-  if (a[0] == 2 && b is String) {
-    Expect.isTrue(b.contains('2'));
-  } else {
-    b.isEven();
-  }
-}
diff --git a/tests/language_2/interceptor/interceptor4_test.dart b/tests/language_2/interceptor/interceptor4_test.dart
deleted file mode 100644
index c8d1f41fb43..00000000000
--- a/tests/language_2/interceptor/interceptor4_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that dart2js gets the right interceptor for an int.
-
-main() {
-  var a = [1];
-  var b = a[0];
-  Expect.equals('1', b.toString());
-  Expect.isTrue(b.isOdd);
-}
diff --git a/tests/language_2/interceptor/interceptor5_test.dart b/tests/language_2/interceptor/interceptor5_test.dart
deleted file mode 100644
index 190b5a17d85..00000000000
--- a/tests/language_2/interceptor/interceptor5_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-get X => [() => 123];
-
-main() {
-  Expect.equals(123, X.last());
-}
diff --git a/tests/language_2/interceptor/interceptor7_test.dart b/tests/language_2/interceptor/interceptor7_test.dart
deleted file mode 100644
index 0f968abfdd7..00000000000
--- a/tests/language_2/interceptor/interceptor7_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that dart2js uses the right interceptor when call a method on
-// something that has type number.
-
-import 'package:expect/expect.dart';
-
-var array = <dynamic>[];
-
-main() {
-  array.add(false);
-  dynamic x = array[0] ? 1.5 : 2;
-  Expect.isTrue(x.isEven);
-}
diff --git a/tests/language_2/interceptor/interceptor8_test.dart b/tests/language_2/interceptor/interceptor8_test.dart
deleted file mode 100644
index 2d78fbb66f5..00000000000
--- a/tests/language_2/interceptor/interceptor8_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js whose codegen used to not consider a double
-// could be instantiated when doing int / int.
-
-var a = [5, 2];
-
-main() {
-  print(a[0] / a[1]);
-}
diff --git a/tests/language_2/interceptor/interceptor9_test.dart b/tests/language_2/interceptor/interceptor9_test.dart
deleted file mode 100644
index 1d59f35e211..00000000000
--- a/tests/language_2/interceptor/interceptor9_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js whose codegen in some cases did not take is
-// tests into account when computing the set of classes for interceptors.
-// See http://dartbug.com/17325
-
-import "package:expect/expect.dart";
-import "dart:typed_data";
-
-confuse(x, [y = null]) => new DateTime.now().day == 42 ? y : x;
-
-boom() {
-  var x = confuse(new Uint8List(22), "");
-  Expect.isTrue(x is Uint8List);
-  x.startsWith("a");
-  x.endsWith("u");
-}
-
-main() {
-  try {
-    var f;
-    if (confuse(true)) {
-      // prevent inlining
-      f = boom;
-    }
-    f();
-  } catch (e) {
-    if (e is ExpectException) throw e;
-  }
-}
diff --git a/tests/language_2/interceptor/interceptor_test.dart b/tests/language_2/interceptor/interceptor_test.dart
deleted file mode 100644
index 3da812ebca8..00000000000
--- a/tests/language_2/interceptor/interceptor_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that interceptors (that is, methods in classes implemented as
-// JavaScript primitives) in dart2js work.
-
-class A {
-  codeUnitAt(a) => a;
-}
-
-main() {
-  var res = <dynamic>[[], 1, 'foo', new A()];
-  Expect.throws(() => res[0].codeUnitAt(1));
-  Expect.throws(() => (res[0].codeUnitAt)(1));
-
-  Expect.throws(() => res[1].codeUnitAt(1));
-  Expect.throws(() => (res[1].codeUnitAt)(1));
-
-  Expect.equals(111, res[2].codeUnitAt(1));
-  Expect.equals(111, (res[2].codeUnitAt)(1));
-  Expect.throws(() => res[2].codeUnitAt(1, 4));
-  Expect.throws(() => res[2].codeUnitAt());
-  Expect.throws(() => (res[2].codeUnitAt)(1, 4));
-  Expect.throws(() => (res[2].codeUnitAt)());
-
-  Expect.equals(1, res[3].codeUnitAt(1));
-  Expect.equals(1, (res[3].codeUnitAt)(1));
-  Expect.throws(() => res[3].codeUnitAt(1, 4));
-  Expect.throws(() => res[3].codeUnitAt());
-  Expect.throws(() => (res[3].codeUnitAt)(1, 4));
-  Expect.throws(() => (res[3].codeUnitAt)());
-}
diff --git a/tests/language_2/interface/constants_test.dart b/tests/language_2/interface/constants_test.dart
deleted file mode 100644
index 88f25a9745e..00000000000
--- a/tests/language_2/interface/constants_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class Constants {
-  static const int FIVE = 5;
-}
-
-class InterfaceConstantsTest {
-  InterfaceConstantsTest() {}
-
-  static void testMain() {
-    Expect.equals(5, Constants.FIVE);
-  }
-}
-
-main() {
-  InterfaceConstantsTest.testMain();
-}
diff --git a/tests/language_2/interface/cycle_test.dart b/tests/language_2/interface/cycle_test.dart
deleted file mode 100644
index defd898d79c..00000000000
--- a/tests/language_2/interface/cycle_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check fail because of cycles in super interface relationship.
-
-// @dart = 2.9
-
-class C implements B {}
-
-class A implements B {}
-
-class B
-  implements A // //# 01: compile-time error
-  implements A // //# 02: compile-time error
-{}
-
-main() {
-  new C(); // //# 01: continued
-  <C>[]; // //# 02: continued
-}
diff --git a/tests/language_2/interface/duplicate_implements_test.dart b/tests/language_2/interface/duplicate_implements_test.dart
deleted file mode 100644
index a5b00151a98..00000000000
--- a/tests/language_2/interface/duplicate_implements_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check that duplicate types in implements/extends list are
-// compile-time errors.
-
-// @dart = 2.9
-
-abstract class I {}
-
-abstract class J {}
-
-abstract class K<T> {}
-
-class X implements I, J, I { } //              //# 01: compile-time error
-class X implements J, I, K<int>, K<int> { } // //# 02: compile-time error
-
-abstract class Z implements I, J, J { } //             //# 03: compile-time error
-abstract class Z implements K<int>, K<int> { } //      //# 04: compile-time error
-
-main() {
-  X x = new X(); // //# 01: continued
-  X x = new X(); // //# 02: continued
-  Z z = new Z(); // //# 03: continued
-  Z z = new Z(); // //# 04: continued
-}
diff --git a/tests/language_2/interface/duplicate_interface_implements_runtime_test.dart b/tests/language_2/interface/duplicate_interface_implements_runtime_test.dart
deleted file mode 100644
index 53272e55641..00000000000
--- a/tests/language_2/interface/duplicate_interface_implements_runtime_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "duplicate_interface_lib.dart" as alib;
-import "duplicate_interface_lib.dart" show InterfA;
-
-// Expect error since InterfA and alib.InterfA refer to the same interface.
-class Foo implements InterfA
-
-{}
-
-main() {
-  new Foo();
-}
diff --git a/tests/language_2/interface/duplicate_interface_implements_test.dart b/tests/language_2/interface/duplicate_interface_implements_test.dart
deleted file mode 100644
index 066a2fcdf48..00000000000
--- a/tests/language_2/interface/duplicate_interface_implements_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "duplicate_interface_lib.dart" as alib;
-import "duplicate_interface_lib.dart" show InterfA;
-
-// Expect error since InterfA and alib.InterfA refer to the same interface.
-class Foo implements InterfA
-    , alib.InterfA
-    //^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.IMPLEMENTS_REPEATED
-    // [cfe] 'InterfA' can only be implemented once.
-{}
-
-main() {
-  new Foo();
-}
diff --git a/tests/language_2/interface/duplicate_interface_lib.dart b/tests/language_2/interface/duplicate_interface_lib.dart
deleted file mode 100644
index 8ddb8294a68..00000000000
--- a/tests/language_2/interface/duplicate_interface_lib.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check fail because of cycles in super class relationship.
-
-// @dart = 2.9
-
-library Interface_Lib;
-
-class InterfA {}
-
-class InterfB {}
diff --git a/tests/language_2/interface/duplicate_interface_test.dart b/tests/language_2/interface/duplicate_interface_test.dart
deleted file mode 100644
index b36a2a18330..00000000000
--- a/tests/language_2/interface/duplicate_interface_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check fail because of cycles in super class relationship.
-
-// @dart = 2.9
-
-library duplicateInterfaceTest;
-
-import 'package:expect/expect.dart';
-import "duplicate_interface_lib.dart" as alib;
-
-class InterfB {}
-
-// Ok since InterfB and alib.InterfB are not the same interface
-class Foo implements InterfB, alib.InterfB {}
-
-main() {
-  Expect.isTrue(new Foo() is InterfB);
-  Expect.isTrue(new Foo() is alib.InterfB);
-}
diff --git a/tests/language_2/interface/implements_futureor_runtime_test.dart b/tests/language_2/interface/implements_futureor_runtime_test.dart
deleted file mode 100644
index 898410b6a69..00000000000
--- a/tests/language_2/interface/implements_futureor_runtime_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'dart:async';
-
-class A<T>
-
-{}
-
-void main() {
-  A a = new A();
-}
diff --git a/tests/language_2/interface/implements_futureor_test.dart b/tests/language_2/interface/implements_futureor_test.dart
deleted file mode 100644
index a2984d23956..00000000000
--- a/tests/language_2/interface/implements_futureor_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-class A<T> implements FutureOr<T> {}
-//                    ^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-//    ^
-// [cfe] The type 'FutureOr' can't be used in an 'implements' clause.
-
-void main() {
-  A a = new A();
-}
diff --git a/tests/language_2/interface/inherit_field_test.dart b/tests/language_2/interface/inherit_field_test.dart
deleted file mode 100644
index 9451ee567a5..00000000000
--- a/tests/language_2/interface/inherit_field_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that it is legal to override a field with a field in an interface.
-
-abstract class IA {
-  final int foo;
-  IA(this.foo);
-}
-
-abstract class IB implements IA {
-  final int foo;
-  IB(this.foo);
-}
-
-class B implements IB {
-  int _f = 123;
-  int get foo => _f;
-}
-
-main() {
-  IB b = new B();
-  print('b.foo = ${b.foo}');
-}
diff --git a/tests/language_2/interface/injection1_runtime_test.dart b/tests/language_2/interface/injection1_runtime_test.dart
deleted file mode 100644
index 4e590c84f85..00000000000
--- a/tests/language_2/interface/injection1_runtime_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// The removed language feature "interface injection" is now a syntax error.
-
-import "package:expect/expect.dart";
-
-abstract class S { }
-abstract class I { }
-
-
-class C implements I { }
-
-main() {
-  Expect.isFalse(new C() is S);
-}
diff --git a/tests/language_2/interface/injection1_test.dart b/tests/language_2/interface/injection1_test.dart
deleted file mode 100644
index 0239efcdbf3..00000000000
--- a/tests/language_2/interface/injection1_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// The removed language feature "interface injection" is now a syntax error.
-
-import "package:expect/expect.dart";
-
-abstract class S { }
-abstract class I { }
-abstract class I implements S;
-//             ^
-// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-// [cfe] 'I' is already declared in this scope.
-//                          ^
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_BODY
-// [cfe] A class declaration must have a body, even if it is empty.
-//                           ^
-// [analyzer] SYNTACTIC_ERROR.UNEXPECTED_TOKEN
-// [cfe] Unexpected token ';'.
-
-class C implements I { }
-//                 ^
-// [cfe] 'I' isn't a type.
-
-main() {
-  Expect.isFalse(new C() is S);
-}
diff --git a/tests/language_2/interface/injection2_runtime_test.dart b/tests/language_2/interface/injection2_runtime_test.dart
deleted file mode 100644
index fd89b6a8540..00000000000
--- a/tests/language_2/interface/injection2_runtime_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// The removed language feature "interface injection" is now a syntax error.
-
-import "package:expect/expect.dart";
-
-abstract class S { }
-class C { }
-
-
-main() {
-  Expect.isFalse(new C() is S);
-}
diff --git a/tests/language_2/interface/injection2_test.dart b/tests/language_2/interface/injection2_test.dart
deleted file mode 100644
index 606d1951e68..00000000000
--- a/tests/language_2/interface/injection2_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// The removed language feature "interface injection" is now a syntax error.
-
-import "package:expect/expect.dart";
-
-abstract class S { }
-class C { }
-class C implements S;
-//    ^
-// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-// [cfe] 'C' is already declared in this scope.
-//                 ^
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_BODY
-// [cfe] A class declaration must have a body, even if it is empty.
-//                  ^
-// [analyzer] SYNTACTIC_ERROR.UNEXPECTED_TOKEN
-// [cfe] Unexpected token ';'.
-
-main() {
-  Expect.isFalse(new C() is S);
-  //                 ^
-  // [cfe] Couldn't find constructor 'C'.
-}
diff --git a/tests/language_2/interface/interface2_test.dart b/tests/language_2/interface/interface2_test.dart
deleted file mode 100644
index fb7140ab02c..00000000000
--- a/tests/language_2/interface/interface2_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// A class must implement a known interface.
-
-class Interface2NegativeTest implements BooHoo {}
-//                                      ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.IMPLEMENTS_NON_CLASS
-// [cfe] Type 'BooHoo' not found.
-
-main() {
-  Interface2NegativeTest();
-}
diff --git a/tests/language_2/interface/interface_test.dart b/tests/language_2/interface/interface_test.dart
deleted file mode 100644
index 61033fe3629..00000000000
--- a/tests/language_2/interface/interface_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing Interfaces.
-
-// @dart = 2.9
-
-abstract class Ai {
-  int foo();
-}
-
-abstract class Bi implements Ai {
-  factory Bi() = InterfaceTest;
-  //             ^
-  // [cfe] Factory redirects to class 'InterfaceTest', which is abstract and can't be instantiated.
-  //             ^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.REDIRECT_TO_ABSTRACT_CLASS_CONSTRUCTOR
-}
-
-abstract class Simple implements Ai {}
-
-abstract class Aai {}
-
-abstract class Abi {}
-
-abstract class Bar {}
-
-abstract class Foo implements Bar {}
-
-abstract class Baz implements Bar, Foo {}
-
-abstract class InterfaceTest implements Ai, Aai, Abi, Baz, Bi {
-  var f;
-
-  InterfaceTest() {}
-  int foo() {
-    return 1;
-  }
-
-  // intentionally unimplemented methods
-  beta(); // Abstract.
-  String beta1(); // Abstract.
-  String beta2(double d); // Abstract.
-}
-
-main() {
-  new Bi();
-}
diff --git a/tests/language_2/interface/runtime_test.dart b/tests/language_2/interface/runtime_test.dart
deleted file mode 100644
index 8570fc72383..00000000000
--- a/tests/language_2/interface/runtime_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing Interfaces.
-
-abstract class Ai {
-  int foo();
-}
-
-abstract class Bi implements Ai {
-
-}
-
-abstract class Simple implements Ai {}
-
-abstract class Aai {}
-
-abstract class Abi {}
-
-abstract class Bar {}
-
-abstract class Foo implements Bar {}
-
-abstract class Baz implements Bar, Foo {}
-
-abstract class InterfaceTest implements Ai, Aai, Abi, Baz, Bi {
-  var f;
-
-  InterfaceTest() {}
-  int foo() {
-    return 1;
-  }
-
-  // intentionally unimplemented methods
-  beta(); // Abstract.
-  String beta1(); // Abstract.
-  String beta2(double d); // Abstract.
-}
-
-main() {
-
-}
diff --git a/tests/language_2/interface/static_method_test.dart b/tests/language_2/interface/static_method_test.dart
deleted file mode 100644
index c2e27f83ca9..00000000000
--- a/tests/language_2/interface/static_method_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-abstract class A {
-  static void foo();
-  //               ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_FUNCTION_BODY
-  // [cfe] Expected a function body or '=>'.
-}
-
-main() {
-  A();
-//^
-// [analyzer] COMPILE_TIME_ERROR.INSTANTIATE_ABSTRACT_CLASS
-// [cfe] The class 'A' is abstract and can't be instantiated.
-}
diff --git a/tests/language_2/invalid_returns/README.md b/tests/language_2/invalid_returns/README.md
deleted file mode 100644
index 7ab657e49f3..00000000000
--- a/tests/language_2/invalid_returns/README.md
+++ /dev/null
@@ -1,6 +0,0 @@
-# Feature tests for invalid returns
-
-This directory holds tests for valid and invalid returns from functions. See
-the
-[feature specification](https://github.com/dart-lang/sdk/blob/main/docs/language/informal/generalized-void.md) for
-details, or the formal spec once integrated.
diff --git a/tests/language_2/invalid_returns/async_invalid_return_00_test.dart b/tests/language_2/invalid_returns/async_invalid_return_00_test.dart
deleted file mode 100644
index 6cc0bddb490..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_00_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return;` is an error if `flatten(T)` is not `void`, `dynamic`, or `Null`
-*/
-Object test() async {
-  return; //# none: static type warning
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_01_test.dart b/tests/language_2/invalid_returns/async_invalid_return_01_test.dart
deleted file mode 100644
index b4efc34b106..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_01_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return;` is an error if `flatten(T)` is not `void`, `dynamic`, or `Null`
-*/
-Future<int> test() async {
-  return; //# none: static type warning
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_02_test.dart b/tests/language_2/invalid_returns/async_invalid_return_02_test.dart
deleted file mode 100644
index dab4a779de8..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_02_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return;` is an error if `flatten(T)` is not `void`, `dynamic`, or `Null`
-*/
-FutureOr<int> test() async {
-  return; //# none: static type warning
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_03_test.dart b/tests/language_2/invalid_returns/async_invalid_return_03_test.dart
deleted file mode 100644
index 3974975b040..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_03_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return;` is an error if `flatten(T)` is not `void`, `dynamic`, or `Null`
-*/
-Future<Object> test() async {
-  return; //# none: static type warning
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_04_test.dart b/tests/language_2/invalid_returns/async_invalid_return_04_test.dart
deleted file mode 100644
index b3dae4e96c8..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_04_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return;` is an error if `flatten(T)` is not `void`, `dynamic`, or `Null`
-*/
-FutureOr<Object> test() async {
-  return; //# none: static type warning
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_05_test.dart b/tests/language_2/invalid_returns/async_invalid_return_05_test.dart
deleted file mode 100644
index 63e7d93cf8c..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_05_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `flatten(T)` is
-  `void` and `flatten(S)` is not `void`, `dynamic`, or `Null`
-*/
-int v = null;
-void test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] Can't return a value from a void function.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_08_test.dart b/tests/language_2/invalid_returns/async_invalid_return_08_test.dart
deleted file mode 100644
index ef8ee9767e6..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_08_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `flatten(T)` is
-  `void` and `flatten(S)` is not `void`, `dynamic`, or `Null`
-*/
-Object v = null;
-void test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] Can't return a value from a void function.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_11_test.dart b/tests/language_2/invalid_returns/async_invalid_return_11_test.dart
deleted file mode 100644
index 466ea780ffc..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_11_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `flatten(T)` is
-  `void` and `flatten(S)` is not `void`, `dynamic`, or `Null`
-*/
-Future<int> v = null;
-void test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] Can't return a value from a void function.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_14_test.dart b/tests/language_2/invalid_returns/async_invalid_return_14_test.dart
deleted file mode 100644
index b511d2752f8..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_14_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `flatten(T)` is
-  `void` and `flatten(S)` is not `void`, `dynamic`, or `Null`
-*/
-FutureOr<int> v = null;
-void test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] Can't return a value from a void function.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_17_test.dart b/tests/language_2/invalid_returns/async_invalid_return_17_test.dart
deleted file mode 100644
index f932b310210..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_17_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `flatten(T)` is
-  `void` and `flatten(S)` is not `void`, `dynamic`, or `Null`
-*/
-Future<Object> v = null;
-void test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] Can't return a value from a void function.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_20_test.dart b/tests/language_2/invalid_returns/async_invalid_return_20_test.dart
deleted file mode 100644
index a085998e729..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_20_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `flatten(T)` is
-  `void` and `flatten(S)` is not `void`, `dynamic`, or `Null`
-*/
-FutureOr<Object> v = null;
-void test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] Can't return a value from a void function.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_23_test.dart b/tests/language_2/invalid_returns/async_invalid_return_23_test.dart
deleted file mode 100644
index 80b9551d96d..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_23_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `flatten(S)` is
-  `void` and `flatten(T)` is not `void`, `dynamic`, or `Null`.
-*/
-void v = null;
-Object test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] This expression has type 'void' and can't be used.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_24_test.dart b/tests/language_2/invalid_returns/async_invalid_return_24_test.dart
deleted file mode 100644
index a5d411b93c9..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_24_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `flatten(S)` is
-  `void` and `flatten(T)` is not `void`, `dynamic`, or `Null`.
-*/
-Future<void> v = null;
-Object test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] This expression has type 'void' and can't be used.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_25_test.dart b/tests/language_2/invalid_returns/async_invalid_return_25_test.dart
deleted file mode 100644
index 5229529db09..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_25_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `flatten(S)` is
-  `void` and `flatten(T)` is not `void`, `dynamic`, or `Null`.
-*/
-FutureOr<void> v = null;
-Object test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] This expression has type 'void' and can't be used.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_26_test.dart b/tests/language_2/invalid_returns/async_invalid_return_26_test.dart
deleted file mode 100644
index 304fb4e344d..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_26_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `flatten(S)` is
-  `void` and `flatten(T)` is not `void`, `dynamic`, or `Null`.
-*/
-void v = null;
-Future<int> test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] This expression has type 'void' and can't be used.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_27_test.dart b/tests/language_2/invalid_returns/async_invalid_return_27_test.dart
deleted file mode 100644
index 337e5adeff4..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_27_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `flatten(S)` is
-  `void` and `flatten(T)` is not `void`, `dynamic`, or `Null`.
-*/
-Future<void> v = null;
-Future<int> test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] This expression has type 'void' and can't be used.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_28_test.dart b/tests/language_2/invalid_returns/async_invalid_return_28_test.dart
deleted file mode 100644
index 5458744606a..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_28_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `flatten(S)` is
-  `void` and `flatten(T)` is not `void`, `dynamic`, or `Null`.
-*/
-FutureOr<void> v = null;
-Future<int> test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] This expression has type 'void' and can't be used.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_29_test.dart b/tests/language_2/invalid_returns/async_invalid_return_29_test.dart
deleted file mode 100644
index 8babacffcaa..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_29_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `flatten(S)` is
-  `void` and `flatten(T)` is not `void`, `dynamic`, or `Null`.
-*/
-void v = null;
-FutureOr<int> test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] This expression has type 'void' and can't be used.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_30_test.dart b/tests/language_2/invalid_returns/async_invalid_return_30_test.dart
deleted file mode 100644
index 28cb5883c2f..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_30_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `flatten(S)` is
-  `void` and `flatten(T)` is not `void`, `dynamic`, or `Null`.
-*/
-Future<void> v = null;
-FutureOr<int> test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] This expression has type 'void' and can't be used.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_31_test.dart b/tests/language_2/invalid_returns/async_invalid_return_31_test.dart
deleted file mode 100644
index 0c047ffdeee..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_31_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `flatten(S)` is
-  `void` and `flatten(T)` is not `void`, `dynamic`, or `Null`.
-*/
-FutureOr<void> v = null;
-FutureOr<int> test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] This expression has type 'void' and can't be used.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_32_test.dart b/tests/language_2/invalid_returns/async_invalid_return_32_test.dart
deleted file mode 100644
index c3026bbdff3..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_32_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `flatten(S)` is
-  `void` and `flatten(T)` is not `void`, `dynamic`, or `Null`.
-*/
-void v = null;
-Future<Object> test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] This expression has type 'void' and can't be used.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_33_test.dart b/tests/language_2/invalid_returns/async_invalid_return_33_test.dart
deleted file mode 100644
index 3081313d3c0..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_33_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `flatten(S)` is
-  `void` and `flatten(T)` is not `void`, `dynamic`, or `Null`.
-*/
-Future<void> v = null;
-Future<Object> test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] This expression has type 'void' and can't be used.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_34_test.dart b/tests/language_2/invalid_returns/async_invalid_return_34_test.dart
deleted file mode 100644
index ac370068ef9..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_34_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `flatten(S)` is
-  `void` and `flatten(T)` is not `void`, `dynamic`, or `Null`.
-*/
-FutureOr<void> v = null;
-Future<Object> test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] This expression has type 'void' and can't be used.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_35_test.dart b/tests/language_2/invalid_returns/async_invalid_return_35_test.dart
deleted file mode 100644
index f1e858072a8..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_35_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `flatten(S)` is
-  `void` and `flatten(T)` is not `void`, `dynamic`, or `Null`.
-*/
-void v = null;
-FutureOr<Object> test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] This expression has type 'void' and can't be used.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_36_test.dart b/tests/language_2/invalid_returns/async_invalid_return_36_test.dart
deleted file mode 100644
index 59557a73783..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_36_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `flatten(S)` is
-  `void` and `flatten(T)` is not `void`, `dynamic`, or `Null`.
-*/
-Future<void> v = null;
-FutureOr<Object> test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] This expression has type 'void' and can't be used.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_37_test.dart b/tests/language_2/invalid_returns/async_invalid_return_37_test.dart
deleted file mode 100644
index e67b6fa75a6..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_37_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `flatten(S)` is
-  `void` and `flatten(T)` is not `void`, `dynamic`, or `Null`.
-*/
-FutureOr<void> v = null;
-FutureOr<Object> test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] This expression has type 'void' and can't be used.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_38_test.dart b/tests/language_2/invalid_returns/async_invalid_return_38_test.dart
deleted file mode 100644
index 836c9c2bd91..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_38_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if
-  `Future<flatten(S)>` is not assignable to `T`.
-*/
-int v = null;
-Future<String> test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] A value of type 'Future<int>' can't be assigned to a variable of type 'FutureOr<String>'.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_39_test.dart b/tests/language_2/invalid_returns/async_invalid_return_39_test.dart
deleted file mode 100644
index 00496a99c14..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_39_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if
-  `Future<flatten(S)>` is not assignable to `T`.
-*/
-Future<int> v = null;
-Future<String> test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] A value of type 'Future<int>' can't be assigned to a variable of type 'FutureOr<String>'.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_40_test.dart b/tests/language_2/invalid_returns/async_invalid_return_40_test.dart
deleted file mode 100644
index 3faea6c8474..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_40_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if
-  `Future<flatten(S)>` is not assignable to `T`.
-*/
-FutureOr<int> v = null;
-Future<String> test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] A value of type 'Future<int>' can't be assigned to a variable of type 'FutureOr<String>'.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_41_test.dart b/tests/language_2/invalid_returns/async_invalid_return_41_test.dart
deleted file mode 100644
index bbc742acf7b..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_41_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if
-  `Future<flatten(S)>` is not assignable to `T`.
-*/
-Future<Future<String>> v = null;
-Future<String> test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] A value of type 'Future<Future<String>>' can't be assigned to a variable of type 'FutureOr<String>'.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_42_test.dart b/tests/language_2/invalid_returns/async_invalid_return_42_test.dart
deleted file mode 100644
index 6e84244fa63..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_42_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if
-  `Future<flatten(S)>` is not assignable to `T`.
-*/
-int v = null;
-FutureOr<String> test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] A value of type 'Future<int>' can't be assigned to a variable of type 'FutureOr<String>'.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_43_test.dart b/tests/language_2/invalid_returns/async_invalid_return_43_test.dart
deleted file mode 100644
index e2aa1dab425..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_43_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if
-  `Future<flatten(S)>` is not assignable to `T`.
-*/
-Future<int> v = null;
-FutureOr<String> test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] A value of type 'Future<int>' can't be assigned to a variable of type 'FutureOr<String>'.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_44_test.dart b/tests/language_2/invalid_returns/async_invalid_return_44_test.dart
deleted file mode 100644
index fd0d1b2d5df..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_44_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if
-  `Future<flatten(S)>` is not assignable to `T`.
-*/
-FutureOr<int> v = null;
-FutureOr<String> test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] A value of type 'Future<int>' can't be assigned to a variable of type 'FutureOr<String>'.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_invalid_return_45_test.dart b/tests/language_2/invalid_returns/async_invalid_return_45_test.dart
deleted file mode 100644
index f9e94d85213..00000000000
--- a/tests/language_2/invalid_returns/async_invalid_return_45_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if
-  `Future<flatten(S)>` is not assignable to `T`.
-*/
-Future<Future<String>> v = null;
-FutureOr<String> test() async {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] A value of type 'Future<Future<String>>' can't be assigned to a variable of type 'FutureOr<String>'.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/async_valid_returns_test.dart b/tests/language_2/invalid_returns/async_valid_returns_test.dart
deleted file mode 100644
index 4c7db334bc5..00000000000
--- a/tests/language_2/invalid_returns/async_valid_returns_test.dart
+++ /dev/null
@@ -1,513 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-void vv = null;
-dynamic vd = null;
-Object vo = null;
-Null vn = null;
-int vi = null;
-Future<void> fvv = null;
-Future<dynamic> fvd = null;
-Future<Object> fvo = null;
-Future<Null> fvn = null;
-Future<int> fvi = null;
-FutureOr<void> fovv = null;
-FutureOr<dynamic> fovd = null;
-FutureOr<Object> fovo = null;
-FutureOr<Null> fovn = null;
-FutureOr<int> fovi = null;
-
-/* Test the cases where expression bodied functions are more permissive
- * than block bodied functions (places where they behave the same
- * are tested below).
-
-An asynchronous expression bodied function with return type `T` and return
-expression `e` has a valid return if:
-  * `flatten(T)` is `void`
-  * or `return e;` is a valid return for an equivalent block bodied function
-  with return type `T` as defined below.
-*/
-
-void async_int_to_void_e() async => vi;
-Future<void> async_int_to_Future_void__e() async => vi;
-FutureOr<void> async_int_to_FutureOr_void__e() async => vi;
-void async_Object_to_void_e() async => vo;
-Future<void> async_Object_to_Future_void__e() async => vo;
-FutureOr<void> async_Object_to_FutureOr_void__e() async => vo;
-void async_Future_int__to_void_e() async => fvi;
-Future<void> async_Future_int__to_Future_void__e() async => fvi;
-FutureOr<void> async_Future_int__to_FutureOr_void__e() async => fvi;
-void async_FutureOr_int__to_void_e() async => fovi;
-Future<void> async_FutureOr_int__to_Future_void__e() async => fovi;
-FutureOr<void> async_FutureOr_int__to_FutureOr_void__e() async => fovi;
-void async_Future_Object__to_void_e() async => fvo;
-Future<void> async_Future_Object__to_Future_void__e() async => fvo;
-FutureOr<void> async_Future_Object__to_FutureOr_void__e() async => fvo;
-void async_FutureOr_Object__to_void_e() async => fovo;
-Future<void> async_FutureOr_Object__to_Future_void__e() async => fovo;
-FutureOr<void> async_FutureOr_Object__to_FutureOr_void__e() async => fovo;
-
-/* Test the cases that apply only to block bodied  functions
- */
-
-/*
-* `return;` is a valid return if any of the following are true:
-  * `flatten(T)` is `void`
-  * `flatten(T)` is `dynamic`
-  * `flatten(T)` is `Null`.
-*/
-Future<void> async_empty_to_Future_void_() async {
-  return;
-}
-
-Future<dynamic> async_empty_to_Future_dynamic_() async {
-  return;
-}
-
-Future<Null> async_empty_to_Future_Null_() async {
-  return;
-}
-
-FutureOr<void> async_empty_to_FutureOr_void_() async {
-  return;
-}
-
-FutureOr<dynamic> async_empty_to_FutureOr_dynamic_() async {
-  return;
-}
-
-FutureOr<Null> async_empty_to_FutureOr_Null_() async {
-  return;
-}
-
-void async_empty_to_void() async {
-  return;
-}
-
-dynamic async_empty_to_dynamic() async {
-  return;
-}
-
-/* Test the cases that apply to both expression bodied and block bodied
- * functions
- */
-
-/*
-* `return exp;` where `exp` has static type `S` is a valid return if:
-  * `flatten(S)` is `void`
-  * and `flatten(T)` is `void`, `dynamic` or `Null`
-*/
-Future<void> async_void_to_Future_void__e() async => vv;
-Future<void> async_void_to_Future_void_() async {
-  return vv;
-}
-
-Future<void> async_Future_void__to_Future_void__e() async => fvv;
-Future<void> async_Future_void__to_Future_void_() async {
-  return fvv;
-}
-
-Future<void> async_FutureOr_void__to_Future_void__e() async => fovv;
-Future<void> async_FutureOr_void__to_Future_void_() async {
-  return fovv;
-}
-
-Future<dynamic> async_void_to_Future_dynamic__e() async => vv;
-Future<dynamic> async_void_to_Future_dynamic_() async {
-  return vv;
-}
-
-Future<dynamic> async_Future_void__to_Future_dynamic__e() async => fvv;
-Future<dynamic> async_Future_void__to_Future_dynamic_() async {
-  return fvv;
-}
-
-Future<dynamic> async_FutureOr_void__to_Future_dynamic__e() async => fovv;
-Future<dynamic> async_FutureOr_void__to_Future_dynamic_() async {
-  return fovv;
-}
-
-Future<Null> async_void_to_Future_Null__e() async => vv;
-Future<Null> async_void_to_Future_Null_() async {
-  return vv;
-}
-
-Future<Null> async_Future_void__to_Future_Null__e() async => fvv;
-Future<Null> async_Future_void__to_Future_Null_() async {
-  return fvv;
-}
-
-Future<Null> async_FutureOr_void__to_Future_Null__e() async => fovv;
-Future<Null> async_FutureOr_void__to_Future_Null_() async {
-  return fovv;
-}
-
-FutureOr<void> async_void_to_FutureOr_void__e() async => vv;
-FutureOr<void> async_void_to_FutureOr_void_() async {
-  return vv;
-}
-
-FutureOr<void> async_Future_void__to_FutureOr_void__e() async => fvv;
-FutureOr<void> async_Future_void__to_FutureOr_void_() async {
-  return fvv;
-}
-
-FutureOr<void> async_FutureOr_void__to_FutureOr_void__e() async => fovv;
-FutureOr<void> async_FutureOr_void__to_FutureOr_void_() async {
-  return fovv;
-}
-
-FutureOr<dynamic> async_void_to_FutureOr_dynamic__e() async => vv;
-FutureOr<dynamic> async_void_to_FutureOr_dynamic_() async {
-  return vv;
-}
-
-FutureOr<dynamic> async_Future_void__to_FutureOr_dynamic__e() async => fvv;
-FutureOr<dynamic> async_Future_void__to_FutureOr_dynamic_() async {
-  return fvv;
-}
-
-FutureOr<dynamic> async_FutureOr_void__to_FutureOr_dynamic__e() async => fovv;
-FutureOr<dynamic> async_FutureOr_void__to_FutureOr_dynamic_() async {
-  return fovv;
-}
-
-FutureOr<Null> async_void_to_FutureOr_Null__e() async => vv;
-FutureOr<Null> async_void_to_FutureOr_Null_() async {
-  return vv;
-}
-
-FutureOr<Null> async_Future_void__to_FutureOr_Null__e() async => fvv;
-FutureOr<Null> async_Future_void__to_FutureOr_Null_() async {
-  return fvv;
-}
-
-FutureOr<Null> async_FutureOr_void__to_FutureOr_Null__e() async => fovv;
-FutureOr<Null> async_FutureOr_void__to_FutureOr_Null_() async {
-  return fovv;
-}
-
-void async_void_to_void_e() async => vv;
-void async_void_to_void() async {
-  return vv;
-}
-
-void async_Future_void__to_void_e() async => fvv;
-void async_Future_void__to_void() async {
-  return fvv;
-}
-
-void async_FutureOr_void__to_void_e() async => fovv;
-void async_FutureOr_void__to_void() async {
-  return fovv;
-}
-
-dynamic async_void_to_dynamic_e() async => vv;
-dynamic async_void_to_dynamic() async {
-  return vv;
-}
-
-dynamic async_Future_void__to_dynamic_e() async => fvv;
-dynamic async_Future_void__to_dynamic() async {
-  return fvv;
-}
-
-dynamic async_FutureOr_void__to_dynamic_e() async => fovv;
-dynamic async_FutureOr_void__to_dynamic() async {
-  return fovv;
-}
-
-/*
-* `return exp;` where `exp` has static type `S` is a valid return if:
-  * `flatten(T)` is `void`
-  * and `flatten(S)` is `void`, `dynamic` or `Null`
-*/
-void async_Future_dynamic__to_void_e() async => fvd;
-void async_Future_dynamic__to_void() async {
-  return fvd;
-}
-
-Future<void> async_Future_dynamic__to_Future_void__e() async => fvd;
-Future<void> async_Future_dynamic__to_Future_void_() async {
-  return fvd;
-}
-
-FutureOr<void> async_Future_dynamic__to_FutureOr_void__e() async => fvd;
-FutureOr<void> async_Future_dynamic__to_FutureOr_void_() async {
-  return fvd;
-}
-
-void async_Future_Null__to_void_e() async => fvn;
-void async_Future_Null__to_void() async {
-  return fvn;
-}
-
-Future<void> async_Future_Null__to_Future_void__e() async => fvn;
-Future<void> async_Future_Null__to_Future_void_() async {
-  return fvn;
-}
-
-FutureOr<void> async_Future_Null__to_FutureOr_void__e() async => fvn;
-FutureOr<void> async_Future_Null__to_FutureOr_void_() async {
-  return fvn;
-}
-
-void async_FutureOr_dynamic__to_void_e() async => fovd;
-void async_FutureOr_dynamic__to_void() async {
-  return fovd;
-}
-
-Future<void> async_FutureOr_dynamic__to_Future_void__e() async => fovd;
-Future<void> async_FutureOr_dynamic__to_Future_void_() async {
-  return fovd;
-}
-
-FutureOr<void> async_FutureOr_dynamic__to_FutureOr_void__e() async => fovd;
-FutureOr<void> async_FutureOr_dynamic__to_FutureOr_void_() async {
-  return fovd;
-}
-
-void async_FutureOr_Null__to_void_e() async => fovn;
-void async_FutureOr_Null__to_void() async {
-  return fovn;
-}
-
-Future<void> async_FutureOr_Null__to_Future_void__e() async => fovn;
-Future<void> async_FutureOr_Null__to_Future_void_() async {
-  return fovn;
-}
-
-FutureOr<void> async_FutureOr_Null__to_FutureOr_void__e() async => fovn;
-FutureOr<void> async_FutureOr_Null__to_FutureOr_void_() async {
-  return fovn;
-}
-
-void async_dynamic_to_void_e() async => vd;
-void async_dynamic_to_void() async {
-  return vd;
-}
-
-Future<void> async_dynamic_to_Future_void__e() async => vd;
-Future<void> async_dynamic_to_Future_void_() async {
-  return vd;
-}
-
-FutureOr<void> async_dynamic_to_FutureOr_void__e() async => vd;
-FutureOr<void> async_dynamic_to_FutureOr_void_() async {
-  return vd;
-}
-
-void async_Null_to_void_e() async => vn;
-void async_Null_to_void() async {
-  return vn;
-}
-
-Future<void> async_Null_to_Future_void__e() async => vn;
-Future<void> async_Null_to_Future_void_() async {
-  return vn;
-}
-
-FutureOr<void> async_Null_to_FutureOr_void__e() async => vn;
-FutureOr<void> async_Null_to_FutureOr_void_() async {
-  return vn;
-}
-
-/*
-* `return exp;` where `exp` has static type `S` is a valid return if:
-  * `T` is not `void`
-  * and `flatten(S)` is not `void`
-  * and `Future<flatten(S)>` is assignable to `T`
-*/
-Future<int> async_int_to_Future_int__e() async => vi;
-Future<int> async_int_to_Future_int_() async {
-  return vi;
-}
-
-Future<int> async_Object_to_Future_int__e() async => vo;
-Future<int> async_Object_to_Future_int_() async {
-  return vo;
-}
-
-Future<int> async_FutureOr_int__to_Future_int__e() async => fovi;
-Future<int> async_FutureOr_int__to_Future_int_() async {
-  return fovi;
-}
-
-Future<int> async_Future_int__to_Future_int__e() async => fvi;
-Future<int> async_Future_int__to_Future_int_() async {
-  return fvi;
-}
-
-Future<void> async_int_to_Future_void_() async {
-  return vi;
-}
-
-Future<void> async_Object_to_Future_void_() async {
-  return vo;
-}
-
-Future<void> async_FutureOr_int__to_Future_void_() async {
-  return fovi;
-}
-
-Future<void> async_Future_int__to_Future_void_() async {
-  return fvi;
-}
-
-FutureOr<void> async_int_to_FutureOr_void_() async {
-  return vi;
-}
-
-FutureOr<void> async_Object_to_FutureOr_void_() async {
-  return vo;
-}
-
-FutureOr<void> async_FutureOr_int__to_FutureOr_void_() async {
-  return fovi;
-}
-
-FutureOr<void> async_Future_int__to_FutureOr_void_() async {
-  return fvi;
-}
-
-void main() {
-  async_int_to_void_e();
-  async_int_to_Future_void__e();
-  async_int_to_FutureOr_void__e();
-  async_Object_to_void_e();
-  async_Object_to_Future_void__e();
-  async_Object_to_FutureOr_void__e();
-  async_Future_int__to_void_e();
-  async_Future_int__to_Future_void__e();
-  async_Future_int__to_FutureOr_void__e();
-  async_FutureOr_int__to_void_e();
-  async_FutureOr_int__to_Future_void__e();
-  async_FutureOr_int__to_FutureOr_void__e();
-  async_Future_Object__to_void_e();
-  async_Future_Object__to_Future_void__e();
-  async_Future_Object__to_FutureOr_void__e();
-  async_FutureOr_Object__to_void_e();
-  async_FutureOr_Object__to_Future_void__e();
-  async_FutureOr_Object__to_FutureOr_void__e();
-  async_empty_to_Future_void_();
-  async_empty_to_Future_dynamic_();
-  async_empty_to_Future_Null_();
-  async_empty_to_FutureOr_void_();
-  async_empty_to_FutureOr_dynamic_();
-  async_empty_to_FutureOr_Null_();
-  async_empty_to_void();
-  async_empty_to_dynamic();
-  async_void_to_Future_void__e();
-  async_void_to_Future_void_();
-  async_Future_void__to_Future_void__e();
-  async_Future_void__to_Future_void_();
-  async_FutureOr_void__to_Future_void__e();
-  async_FutureOr_void__to_Future_void_();
-  async_void_to_Future_dynamic__e();
-  async_void_to_Future_dynamic_();
-  async_Future_void__to_Future_dynamic__e();
-  async_Future_void__to_Future_dynamic_();
-  async_FutureOr_void__to_Future_dynamic__e();
-  async_FutureOr_void__to_Future_dynamic_();
-  async_void_to_Future_Null__e();
-  async_void_to_Future_Null_();
-  async_Future_void__to_Future_Null__e();
-  async_Future_void__to_Future_Null_();
-  async_FutureOr_void__to_Future_Null__e();
-  async_FutureOr_void__to_Future_Null_();
-  async_void_to_FutureOr_void__e();
-  async_void_to_FutureOr_void_();
-  async_Future_void__to_FutureOr_void__e();
-  async_Future_void__to_FutureOr_void_();
-  async_FutureOr_void__to_FutureOr_void__e();
-  async_FutureOr_void__to_FutureOr_void_();
-  async_void_to_FutureOr_dynamic__e();
-  async_void_to_FutureOr_dynamic_();
-  async_Future_void__to_FutureOr_dynamic__e();
-  async_Future_void__to_FutureOr_dynamic_();
-  async_FutureOr_void__to_FutureOr_dynamic__e();
-  async_FutureOr_void__to_FutureOr_dynamic_();
-  async_void_to_FutureOr_Null__e();
-  async_void_to_FutureOr_Null_();
-  async_Future_void__to_FutureOr_Null__e();
-  async_Future_void__to_FutureOr_Null_();
-  async_FutureOr_void__to_FutureOr_Null__e();
-  async_FutureOr_void__to_FutureOr_Null_();
-  async_void_to_void_e();
-  async_void_to_void();
-  async_Future_void__to_void_e();
-  async_Future_void__to_void();
-  async_FutureOr_void__to_void_e();
-  async_FutureOr_void__to_void();
-  async_void_to_dynamic_e();
-  async_void_to_dynamic();
-  async_Future_void__to_dynamic_e();
-  async_Future_void__to_dynamic();
-  async_FutureOr_void__to_dynamic_e();
-  async_FutureOr_void__to_dynamic();
-  async_Future_dynamic__to_void_e();
-  async_Future_dynamic__to_void();
-  async_Future_dynamic__to_Future_void__e();
-  async_Future_dynamic__to_Future_void_();
-  async_Future_dynamic__to_FutureOr_void__e();
-  async_Future_dynamic__to_FutureOr_void_();
-  async_Future_Null__to_void_e();
-  async_Future_Null__to_void();
-  async_Future_Null__to_Future_void__e();
-  async_Future_Null__to_Future_void_();
-  async_Future_Null__to_FutureOr_void__e();
-  async_Future_Null__to_FutureOr_void_();
-  async_FutureOr_dynamic__to_void_e();
-  async_FutureOr_dynamic__to_void();
-  async_FutureOr_dynamic__to_Future_void__e();
-  async_FutureOr_dynamic__to_Future_void_();
-  async_FutureOr_dynamic__to_FutureOr_void__e();
-  async_FutureOr_dynamic__to_FutureOr_void_();
-  async_FutureOr_Null__to_void_e();
-  async_FutureOr_Null__to_void();
-  async_FutureOr_Null__to_Future_void__e();
-  async_FutureOr_Null__to_Future_void_();
-  async_FutureOr_Null__to_FutureOr_void__e();
-  async_FutureOr_Null__to_FutureOr_void_();
-  async_dynamic_to_void_e();
-  async_dynamic_to_void();
-  async_dynamic_to_Future_void__e();
-  async_dynamic_to_Future_void_();
-  async_dynamic_to_FutureOr_void__e();
-  async_dynamic_to_FutureOr_void_();
-  async_Null_to_void_e();
-  async_Null_to_void();
-  async_Null_to_Future_void__e();
-  async_Null_to_Future_void_();
-  async_Null_to_FutureOr_void__e();
-  async_Null_to_FutureOr_void_();
-  async_int_to_Future_int__e();
-  async_int_to_Future_int_();
-  async_Object_to_Future_int__e();
-  async_Object_to_Future_int_();
-  async_FutureOr_int__to_Future_int__e();
-  async_FutureOr_int__to_Future_int_();
-  async_Future_int__to_Future_int__e();
-  async_Future_int__to_Future_int_();
-  async_int_to_Future_void__e();
-  async_int_to_Future_void_();
-  async_Object_to_Future_void__e();
-  async_Object_to_Future_void_();
-  async_FutureOr_int__to_Future_void__e();
-  async_FutureOr_int__to_Future_void_();
-  async_Future_int__to_Future_void__e();
-  async_Future_int__to_Future_void_();
-  async_int_to_FutureOr_void__e();
-  async_int_to_FutureOr_void_();
-  async_Object_to_FutureOr_void__e();
-  async_Object_to_FutureOr_void_();
-  async_FutureOr_int__to_FutureOr_void__e();
-  async_FutureOr_int__to_FutureOr_void_();
-  async_Future_int__to_FutureOr_void__e();
-  async_Future_int__to_FutureOr_void_();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_00_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_00_test.dart
deleted file mode 100644
index e3e3316391f..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_00_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return;` is an error if `T` is not `void`, `dynamic`, or `Null`
-*/
-int test() {
-  return; //# none: static type warning
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_01_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_01_test.dart
deleted file mode 100644
index c81b1dc42f6..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_01_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return;` is an error if `T` is not `void`, `dynamic`, or `Null`
-*/
-Object test() {
-  return; //# none: static type warning
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_02_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_02_test.dart
deleted file mode 100644
index f7584a7f7a8..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_02_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return;` is an error if `T` is not `void`, `dynamic`, or `Null`
-*/
-Future<int> test() {
-  return; //# none: static type warning
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_03_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_03_test.dart
deleted file mode 100644
index 9e972dad91b..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_03_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return;` is an error if `T` is not `void`, `dynamic`, or `Null`
-*/
-FutureOr<int> test() {
-  return; //# none: static type warning
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_04_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_04_test.dart
deleted file mode 100644
index 8f03155f050..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_04_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return;` is an error if `T` is not `void`, `dynamic`, or `Null`
-*/
-Future<Object> test() {
-  return; //# none: static type warning
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_05_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_05_test.dart
deleted file mode 100644
index 7fbc21b23c2..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_05_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return;` is an error if `T` is not `void`, `dynamic`, or `Null`
-*/
-FutureOr<Object> test() {
-  return; //# none: static type warning
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_06_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_06_test.dart
deleted file mode 100644
index 9d26ea7aafb..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_06_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `T` is `void` and
-  `S` is not `void`, `dynamic`, or `Null`
-*/
-int v = null;
-void test() {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] Can't return a value from a void function.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_07_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_07_test.dart
deleted file mode 100644
index 5d3c1663a61..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_07_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `T` is `void` and
-  `S` is not `void`, `dynamic`, or `Null`
-*/
-Object v = null;
-void test() {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] Can't return a value from a void function.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_08_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_08_test.dart
deleted file mode 100644
index 6d79d3b65a8..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_08_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `T` is `void` and
-  `S` is not `void`, `dynamic`, or `Null`
-*/
-Future<int> v = null;
-void test() {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] Can't return a value from a void function.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_09_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_09_test.dart
deleted file mode 100644
index 85bf9373ed3..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_09_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `T` is `void` and
-  `S` is not `void`, `dynamic`, or `Null`
-*/
-FutureOr<int> v = null;
-void test() {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] Can't return a value from a void function.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_10_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_10_test.dart
deleted file mode 100644
index 6195019fb9d..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_10_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `T` is `void` and
-  `S` is not `void`, `dynamic`, or `Null`
-*/
-Future<Object> v = null;
-void test() {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] Can't return a value from a void function.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_11_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_11_test.dart
deleted file mode 100644
index e426be93822..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_11_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `T` is `void` and
-  `S` is not `void`, `dynamic`, or `Null`
-*/
-FutureOr<Object> v = null;
-void test() {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] Can't return a value from a void function.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_12_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_12_test.dart
deleted file mode 100644
index 9fbd3453bfd..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_12_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `S` is `void` and
-  `T` is not `void`, or `dynamic` or `Null`.
-*/
-void v = null;
-int test() {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] This expression has type 'void' and can't be used.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_13_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_13_test.dart
deleted file mode 100644
index 889e9863ab4..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_13_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `S` is `void` and
-  `T` is not `void`, or `dynamic` or `Null`.
-*/
-void v = null;
-Object test() {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] This expression has type 'void' and can't be used.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_14_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_14_test.dart
deleted file mode 100644
index 90efd31df7a..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_14_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `S` is `void` and
-  `T` is not `void`, or `dynamic` or `Null`.
-*/
-void v = null;
-Future<int> test() {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] This expression has type 'void' and can't be used.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_15_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_15_test.dart
deleted file mode 100644
index 8ee6a812725..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_15_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `S` is `void` and
-  `T` is not `void`, or `dynamic` or `Null`.
-*/
-void v = null;
-FutureOr<int> test() {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] This expression has type 'void' and can't be used.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_16_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_16_test.dart
deleted file mode 100644
index 8bc773bb679..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_16_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `S` is `void` and
-  `T` is not `void`, or `dynamic` or `Null`.
-*/
-void v = null;
-Future<Object> test() {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] This expression has type 'void' and can't be used.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_17_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_17_test.dart
deleted file mode 100644
index e5b4e8ffd3a..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_17_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `S` is `void` and
-  `T` is not `void`, or `dynamic` or `Null`.
-*/
-void v = null;
-FutureOr<Object> test() {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] This expression has type 'void' and can't be used.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_18_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_18_test.dart
deleted file mode 100644
index 2b8637edd17..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_18_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `S` is not
-  assignable to `T`.
-*/
-int v = null;
-String test() {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] A value of type 'int' can't be assigned to a variable of type 'String'.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_19_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_19_test.dart
deleted file mode 100644
index d227e6419a2..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_19_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `S` is not
-  assignable to `T`.
-*/
-Future<int> v = null;
-String test() {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] A value of type 'Future<int>' can't be assigned to a variable of type 'String'.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_20_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_20_test.dart
deleted file mode 100644
index 6664d4cc9e5..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_20_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `S` is not
-  assignable to `T`.
-*/
-FutureOr<int> v = null;
-String test() {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] A value of type 'FutureOr<int>' can't be assigned to a variable of type 'String'.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_21_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_21_test.dart
deleted file mode 100644
index 2f3d58486e9..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_21_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `S` is not
-  assignable to `T`.
-*/
-int v = null;
-Future<String> test() {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] A value of type 'int' can't be assigned to a variable of type 'Future<String>'.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_22_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_22_test.dart
deleted file mode 100644
index 3d3024c2b9b..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_22_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `S` is not
-  assignable to `T`.
-*/
-Future<int> v = null;
-Future<String> test() {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] A value of type 'Future<int>' can't be assigned to a variable of type 'Future<String>'.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_23_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_23_test.dart
deleted file mode 100644
index 3cca2693ff9..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_23_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `S` is not
-  assignable to `T`.
-*/
-FutureOr<int> v = null;
-Future<String> test() {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] A value of type 'FutureOr<int>' can't be assigned to a variable of type 'Future<String>'.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_24_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_24_test.dart
deleted file mode 100644
index aa9eeab2a94..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_24_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `S` is not
-  assignable to `T`.
-*/
-int v = null;
-FutureOr<String> test() {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] A value of type 'int' can't be assigned to a variable of type 'FutureOr<String>'.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_25_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_25_test.dart
deleted file mode 100644
index 8744c10110b..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_25_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `S` is not
-  assignable to `T`.
-*/
-Future<int> v = null;
-FutureOr<String> test() {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] A value of type 'Future<int>' can't be assigned to a variable of type 'FutureOr<String>'.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_invalid_return_26_test.dart b/tests/language_2/invalid_returns/sync_invalid_return_26_test.dart
deleted file mode 100644
index 2f220422945..00000000000
--- a/tests/language_2/invalid_returns/sync_invalid_return_26_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-/*
-* `return exp;` where `exp` has static type `S` is an error if `S` is not
-  assignable to `T`.
-*/
-FutureOr<int> v = null;
-FutureOr<String> test() {
-  return v;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] A value of type 'FutureOr<int>' can't be assigned to a variable of type 'FutureOr<String>'.
-}
-
-void main() {
-  test();
-}
diff --git a/tests/language_2/invalid_returns/sync_valid_returns_test.dart b/tests/language_2/invalid_returns/sync_valid_returns_test.dart
deleted file mode 100644
index 0cb6a2a4151..00000000000
--- a/tests/language_2/invalid_returns/sync_valid_returns_test.dart
+++ /dev/null
@@ -1,150 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-void vv = null;
-dynamic vd = null;
-Object vo = null;
-Null vn = null;
-int vi = null;
-Future<void> fvv = null;
-Future<dynamic> fvd = null;
-Future<Object> fvo = null;
-Future<Null> fvn = null;
-Future<int> fvi = null;
-FutureOr<void> fovv = null;
-FutureOr<dynamic> fovd = null;
-FutureOr<Object> fovo = null;
-FutureOr<Null> fovn = null;
-FutureOr<int> fovi = null;
-
-/* Test the cases where expression bodied functions are more permissive
- * than block bodied functions (places where they behave the same
- * are tested below).
-
-A synchronous expression bodied function with return type `T` and return expression
-`e` has a valid return if:
-  * `T` is `void`
-  * or `return exp;` is a valid return for an equivalent block bodied function
-  with return type `T` as defined below.
-*/
-void sync_int_to_void_e() => vi;
-void sync_Object_to_void_e() => vo;
-void sync_Future_int__to_void_e() => fvi;
-void sync_FutureOr_int__to_void_e() => fovi;
-void sync_Future_Object__to_void_e() => fvo;
-void sync_FutureOr_Object__to_void_e() => fovo;
-
-/* Test the cases that apply only to block bodied  functions
- */
-
-/*
-* `return;` is a valid return if any of the following are true:
-  * `T` is `void`
-  * `T` is `dynamic`
-  * `T` is `Null`.
-*/
-void sync_empty_to_void() {
-  return;
-}
-
-dynamic sync_empty_to_dynamic() {
-  return;
-}
-
-Null sync_empty_to_Null() {
-  return;
-}
-
-/* Test the cases that apply to both expression bodied and block bodied
- * functions
- */
-
-/*
-* `return exp;` where `exp` has static type `S` is a valid return if:
-  * `S` is `void`
-  * and `T` is `void` or `dynamic` or `Null`
-*/
-void sync_void_to_void_e() => vv;
-void sync_void_to_void() {
-  return vv;
-}
-
-dynamic sync_void_to_dynamic_e() => vv;
-dynamic sync_void_to_dynamic() {
-  return vv;
-}
-
-Null sync_void_to_Null_e() => vv;
-Null sync_void_to_Null() {
-  return vv;
-}
-
-/*
-* `return exp;` where `exp` has static type `S` is a valid return if:
-  * `T` is `void`
-  * and `S` is `void` or `dynamic` or `Null`
-
-*/
-void sync_dynamic_to_void_e() => vd;
-void sync_dynamic_to_void() {
-  return vd;
-}
-
-void sync_Null_to_void_e() => vn;
-void sync_Null_to_void() {
-  return vn;
-}
-
-/*
-* `return exp;` where `exp` has static type `S` is a valid return if:
-  * `T` is not `void`
-  * and `S` is not `void`
-  * and `S` is assignable to `T`
-*/
-int sync_int_to_int_e() => vi;
-int sync_int_to_int() {
-  return vi;
-}
-
-int sync_Object_to_int_e() => vo;
-int sync_Object_to_int() {
-  return vo;
-}
-
-int sync_FutureOr_int__to_int_e() => fovi;
-int sync_FutureOr_int__to_int() {
-  return fovi;
-}
-
-void main() {
-  sync_int_to_void_e();
-  sync_Object_to_void_e();
-  sync_Future_int__to_void_e();
-  sync_FutureOr_int__to_void_e();
-  sync_Future_Object__to_void_e();
-  sync_FutureOr_Object__to_void_e();
-  sync_empty_to_void();
-  sync_empty_to_dynamic();
-  sync_empty_to_Null();
-  sync_void_to_void_e();
-  sync_void_to_void();
-  sync_void_to_dynamic_e();
-  sync_void_to_dynamic();
-  sync_void_to_Null_e();
-  sync_void_to_Null();
-  sync_dynamic_to_void_e();
-  sync_dynamic_to_void();
-  sync_Null_to_void_e();
-  sync_Null_to_void();
-  sync_int_to_int_e();
-  sync_int_to_int();
-  sync_Object_to_int_e();
-  sync_Object_to_int();
-  sync_FutureOr_int__to_int_e();
-  sync_FutureOr_int__to_int();
-}
diff --git a/tests/language_2/is/function_test.dart b/tests/language_2/is/function_test.dart
deleted file mode 100644
index b4c9885e842..00000000000
--- a/tests/language_2/is/function_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var staticClosure;
-int staticMethod() => 42;
-
-class B {
-  var instanceClosure;
-  var nullField;
-  int instanceMethod() => 43;
-}
-
-checkUntyped(closure) {
-  Expect.isTrue(closure is Function);
-}
-
-checkTyped(int closure()) {
-  Expect.isTrue(closure is Function);
-}
-
-checkTypedNull(int closure()) {
-  Expect.isFalse(closure is Function);
-}
-
-checkUntypedNull(closure) {
-  Expect.isFalse(closure is Function);
-}
-
-main() {
-  staticClosure = () => 44;
-  B b = new B();
-  b.instanceClosure = () => 45;
-
-  closureStatement() => 46;
-  var closureExpression = () => 47;
-
-  checkUntyped(staticClosure);
-  checkTyped(staticClosure);
-
-  checkUntyped(staticMethod);
-  checkTyped(staticMethod);
-
-  checkUntyped(b.instanceClosure);
-  checkTyped(b.instanceClosure);
-
-  checkUntyped(b.instanceMethod);
-  checkTyped(b.instanceMethod);
-
-  checkUntyped(closureStatement);
-  checkTyped(closureStatement);
-
-  checkUntyped(closureExpression);
-  checkTyped(closureExpression);
-
-  checkTypedNull(b.nullField);
-  checkUntypedNull(b.nullField);
-}
diff --git a/tests/language_2/is/instanceof_test.dart b/tests/language_2/is/instanceof_test.dart
deleted file mode 100644
index dabf8f38f1d..00000000000
--- a/tests/language_2/is/instanceof_test.dart
+++ /dev/null
@@ -1,200 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class InstanceofTest {
-  InstanceofTest() {}
-
-  static void testBasicTypes() {
-    Expect.equals(true, 0 is int);
-    Expect.equals(false, (0 is bool));
-    Expect.equals(false, (0 is String));
-    Expect.equals(true, 1 is int);
-    Expect.equals(false, (1 is bool));
-    Expect.equals(false, (1 is String));
-
-    Expect.equals(false, (true is int));
-    Expect.equals(true, true is bool);
-    Expect.equals(false, (true is String));
-    Expect.equals(false, (false is int));
-    Expect.equals(true, false is bool);
-    Expect.equals(false, (false is String));
-
-    Expect.equals(false, ("a" is int));
-    Expect.equals(false, ("a" is bool));
-    Expect.equals(true, "a" is String);
-
-    Expect.equals(false, ("" is int));
-    Expect.equals(false, ("" is bool));
-    Expect.equals(true, "" is String);
-  }
-
-  static void testInterfaces() {
-    // Simple Cases with interfaces.
-    var a = new A();
-    Expect.equals(true, a is I);
-    Expect.equals(true, a is A);
-    Expect.equals(false, (a is String));
-    Expect.equals(false, (a is int));
-    Expect.equals(false, (a is bool));
-    Expect.equals(false, (a is B));
-    Expect.equals(false, (a is J));
-
-    // Interfaces with parent
-    var c = new C();
-    Expect.equals(true, c is I);
-    Expect.equals(true, c is J);
-    Expect.equals(true, c is K);
-
-    var d = new D();
-    Expect.equals(true, d is I);
-    Expect.equals(true, d is J);
-    Expect.equals(true, d is K);
-
-    Expect.equals(true, [] is List);
-    Expect.equals(true, [1, 2, 3] is List);
-    Expect.equals(false, (d is List));
-    Expect.equals(false, (null is List));
-    Expect.equals(false, (null is D));
-  }
-
-  static void testnum() {
-    Expect.equals(true, 0 is num);
-    Expect.equals(true, 123 is num);
-    Expect.equals(true, 123.34 is num);
-    Expect.equals(false, ("123" is num));
-    Expect.equals(false, (null is num));
-    Expect.equals(false, (true is num));
-    Expect.equals(false, (false is num));
-    var a = new A();
-    Expect.equals(false, (a is num));
-  }
-
-  static void testTypeOfInstanceOf() {
-    var a = new A();
-    // Interfaces with parent
-    var c = new C();
-    var d = new D();
-
-    Expect.equals(true, (null is int) is bool);
-    Expect.equals(true, (null is bool) is bool);
-    Expect.equals(true, (null is String) is bool);
-    Expect.equals(true, (null is A) is bool);
-    Expect.equals(true, (null is B) is bool);
-    Expect.equals(true, (null is I) is bool);
-    Expect.equals(true, (null is J) is bool);
-
-    Expect.equals(true, (0 is int) is bool);
-    Expect.equals(true, (0 is bool) is bool);
-    Expect.equals(true, (0 is String) is bool);
-    Expect.equals(true, (0 is A) is bool);
-    Expect.equals(true, (0 is B) is bool);
-    Expect.equals(true, (0 is I) is bool);
-    Expect.equals(true, (0 is J) is bool);
-
-    Expect.equals(true, (1 is int) is bool);
-    Expect.equals(true, (1 is bool) is bool);
-    Expect.equals(true, (1 is String) is bool);
-    Expect.equals(true, (1 is A) is bool);
-    Expect.equals(true, (1 is B) is bool);
-    Expect.equals(true, (1 is I) is bool);
-    Expect.equals(true, (1 is J) is bool);
-
-    Expect.equals(true, (true is int) is bool);
-    Expect.equals(true, (true is bool) is bool);
-    Expect.equals(true, (true is String) is bool);
-    Expect.equals(true, (true is A) is bool);
-    Expect.equals(true, (true is B) is bool);
-    Expect.equals(true, (true is I) is bool);
-    Expect.equals(true, (true is J) is bool);
-
-    Expect.equals(true, (false is int) is bool);
-    Expect.equals(true, (false is bool) is bool);
-    Expect.equals(true, (false is String) is bool);
-    Expect.equals(true, (false is A) is bool);
-    Expect.equals(true, (false is B) is bool);
-    Expect.equals(true, (false is I) is bool);
-    Expect.equals(true, (false is J) is bool);
-
-    Expect.equals(true, ("a" is int) is bool);
-    Expect.equals(true, ("a" is bool) is bool);
-    Expect.equals(true, ("a" is String) is bool);
-    Expect.equals(true, ("a" is A) is bool);
-    Expect.equals(true, ("a" is B) is bool);
-    Expect.equals(true, ("a" is I) is bool);
-    Expect.equals(true, ("a" is J) is bool);
-
-    Expect.equals(true, ("" is int) is bool);
-    Expect.equals(true, ("" is bool) is bool);
-    Expect.equals(true, ("" is String) is bool);
-    Expect.equals(true, ("" is A) is bool);
-    Expect.equals(true, ("" is B) is bool);
-    Expect.equals(true, ("" is I) is bool);
-    Expect.equals(true, ("" is J) is bool);
-
-    Expect.equals(true, (a is int) is bool);
-    Expect.equals(true, (a is bool) is bool);
-    Expect.equals(true, (a is String) is bool);
-    Expect.equals(true, (a is A) is bool);
-    Expect.equals(true, (a is B) is bool);
-    Expect.equals(true, (a is I) is bool);
-    Expect.equals(true, (a is J) is bool);
-
-    Expect.equals(true, (c is int) is bool);
-    Expect.equals(true, (c is bool) is bool);
-    Expect.equals(true, (c is String) is bool);
-    Expect.equals(true, (c is A) is bool);
-    Expect.equals(true, (c is B) is bool);
-    Expect.equals(true, (c is I) is bool);
-    Expect.equals(true, (c is J) is bool);
-
-    Expect.equals(true, (d is int) is bool);
-    Expect.equals(true, (d is bool) is bool);
-    Expect.equals(true, (d is String) is bool);
-    Expect.equals(true, (d is A) is bool);
-    Expect.equals(true, (d is B) is bool);
-    Expect.equals(true, (d is I) is bool);
-    Expect.equals(true, (d is J) is bool);
-  }
-
-  static void testMain() {
-    testBasicTypes();
-    // TODO(sra): enable after fixing b/4604295
-    // testnum();
-    testInterfaces();
-    testTypeOfInstanceOf();
-  }
-}
-
-abstract class I {}
-
-class A implements I {
-  A() {}
-}
-
-class B {
-  B() {}
-}
-
-abstract class J {}
-
-abstract class K implements J {}
-
-class C implements I, K {
-  C() {}
-}
-
-class D extends C {
-  D() : super() {}
-}
-
-main() {
-  // Repeat type checks so that inlined tests can be tested as well.
-  for (int i = 0; i < 5; i++) {
-    InstanceofTest.testMain();
-  }
-}
diff --git a/tests/language_2/is/interfaces2_test.dart b/tests/language_2/is/interfaces2_test.dart
deleted file mode 100644
index 01db9e2dbd4..00000000000
--- a/tests/language_2/is/interfaces2_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-class C extends B {}
-
-class D implements C {}
-
-int inscrutable(int x) => (x == 0) ? 0 : (x | inscrutable(x & (x - 1)));
-
-main() {
-  var things = [new A(), new B(), new C(), new D()];
-
-  var a = things[inscrutable(0)];
-  Expect.isTrue(a is A);
-  Expect.isFalse(a is B);
-  Expect.isFalse(a is C);
-  Expect.isFalse(a is D);
-
-  var b = things[inscrutable(1)];
-  Expect.isTrue(b is A);
-  Expect.isTrue(b is B);
-  Expect.isFalse(b is C);
-  Expect.isFalse(b is D);
-
-  var c = things[inscrutable(2)];
-  Expect.isTrue(c is A);
-  Expect.isTrue(c is B);
-  Expect.isTrue(c is C);
-  Expect.isFalse(c is D);
-
-  var d = things[inscrutable(3)];
-  Expect.isTrue(d is A);
-  Expect.isTrue(d is B);
-  Expect.isTrue(d is C);
-  Expect.isTrue(d is D);
-}
diff --git a/tests/language_2/is/interfaces_test.dart b/tests/language_2/is/interfaces_test.dart
deleted file mode 100644
index a8d1decf2bd..00000000000
--- a/tests/language_2/is/interfaces_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-class C implements B {}
-
-int inscrutable(int x) => x == 0 ? 0 : x | inscrutable(x & (x - 1));
-
-main() {
-  var things = [new A(), new B(), new C()];
-
-  var a = things[inscrutable(0)];
-  Expect.isTrue(a is A);
-  Expect.isFalse(a is B);
-  Expect.isFalse(a is C);
-
-  var b = things[inscrutable(1)];
-  Expect.isTrue(b is A);
-  Expect.isTrue(b is B);
-  Expect.isFalse(b is C);
-
-  var c = things[inscrutable(2)];
-  Expect.isTrue(c is A);
-  Expect.isTrue(c is B);
-  Expect.isTrue(c is C);
-}
diff --git a/tests/language_2/is/is2_test.dart b/tests/language_2/is/is2_test.dart
deleted file mode 100644
index edfbc575dc2..00000000000
--- a/tests/language_2/is/is2_test.dart
+++ /dev/null
@@ -1,108 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing the instanceof operation.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class I {}
-
-abstract class AI implements I {}
-
-class A implements AI {
-  const A();
-}
-
-class B implements I {
-  const B();
-}
-
-class C extends A {
-  const C() : super();
-}
-
-class InstanceofTest {
-  static testMain() {
-    var a = new A();
-    var b = new B();
-    var c = new C();
-    var n = null;
-
-    Expect.equals(true, a is A);
-    Expect.equals(true, b is B);
-    Expect.equals(true, c is C);
-    Expect.equals(true, c is A);
-
-    Expect.equals(true, a is AI);
-    Expect.equals(true, a is I);
-    Expect.equals(false, b is AI);
-    Expect.equals(true, b is I);
-    Expect.equals(true, c is AI);
-    Expect.equals(true, c is I);
-    Expect.equals(false, n is AI);
-    Expect.equals(false, n is I);
-
-    Expect.equals(false, a is B);
-    Expect.equals(false, a is C);
-    Expect.equals(false, b is A);
-    Expect.equals(false, b is C);
-    Expect.equals(false, c is B);
-    Expect.equals(false, n is A);
-
-    Expect.equals(false, null is A);
-    Expect.equals(false, null is B);
-    Expect.equals(false, null is C);
-    Expect.equals(false, null is AI);
-    Expect.equals(false, null is I);
-
-    {
-      var a = new List<dynamic>.filled(5, null);
-      Expect.equals(true, a is List);
-      Expect.equals(true, a is List<Object>);
-      Expect.equals(false, a is List<int>);
-      Expect.equals(false, a is List<num>);
-      Expect.equals(false, a is List<String>);
-    }
-    {
-      var a = new List<Object>.filled(5, null);
-      Expect.equals(true, a is List);
-      Expect.equals(true, a is List<Object>);
-      Expect.equals(false, a is List<int>);
-      Expect.equals(false, a is List<num>);
-      Expect.equals(false, a is List<String>);
-    }
-    {
-      var a = new List<int>.filled(5, null);
-      Expect.equals(true, a is List);
-      Expect.equals(true, a is List<Object>);
-      Expect.equals(true, a is List<int>);
-      Expect.equals(true, a is List<num>);
-      Expect.equals(false, a is List<String>);
-    }
-    {
-      var a = new List<num>.filled(5, null);
-      Expect.equals(true, a is List);
-      Expect.equals(true, a is List<Object>);
-      Expect.equals(false, a is List<int>);
-      Expect.equals(true, a is List<num>);
-      Expect.equals(false, a is List<String>);
-    }
-    {
-      var a = new List<String>.filled(5, null);
-      Expect.equals(true, a is List);
-      Expect.equals(true, a is List<Object>);
-      Expect.equals(false, a is List<int>);
-      Expect.equals(false, a is List<num>);
-      Expect.equals(true, a is List<String>);
-    }
-  }
-}
-
-main() {
-  // Repeat type checks so that inlined tests can be tested as well.
-  for (int i = 0; i < 5; i++) {
-    InstanceofTest.testMain();
-  }
-}
diff --git a/tests/language_2/is/is4_test.dart b/tests/language_2/is/is4_test.dart
deleted file mode 100644
index 4be4b2673bf..00000000000
--- a/tests/language_2/is/is4_test.dart
+++ /dev/null
@@ -1,74 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing the instanceof operation.
-// Regression test for issue 5216.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Foo<T> {
-  bool isT() => "a string" is T;
-  bool isNotT() => "a string" is! T;
-  bool isListT() => [0, 1, 2] is List<T>;
-  bool isNotListT() => [0, 1, 2] is! List<T>;
-  bool isAlsoListT() => <int>[0, 1, 2] is List<T>;
-  bool isNeitherListT() => <int>[0, 1, 2] is! List<T>;
-}
-
-testFooString() {
-  var o = new Foo<String>();
-  Expect.isTrue(o.isT());
-  Expect.isTrue(!o.isNotT());
-  Expect.isTrue(!o.isListT());
-  Expect.isTrue(o.isNotListT());
-  Expect.isTrue(!o.isAlsoListT()); // //# 01: ok
-  Expect.isTrue(o.isNeitherListT()); // //# 01: ok
-  for (var i = 0; i < 20; i++) {
-    // Make sure methods are optimized.
-    o.isT();
-    o.isNotT();
-    o.isListT();
-    o.isNotListT();
-    o.isAlsoListT(); // //# 01: ok
-    o.isNeitherListT(); // //# 01: ok
-  }
-  Expect.isTrue(o.isT(), "1");
-  Expect.isTrue(!o.isNotT(), "2");
-  Expect.isTrue(!o.isListT(), "3");
-  Expect.isTrue(o.isNotListT(), "4");
-  Expect.isTrue(!o.isAlsoListT(), "5"); // //# 01: ok
-  Expect.isTrue(o.isNeitherListT(), "6"); // //# 01: ok
-}
-
-testFooInt() {
-  var o = new Foo<int>();
-  Expect.isTrue(!o.isT());
-  Expect.isTrue(o.isNotT());
-  Expect.isTrue(o.isListT());
-  Expect.isTrue(!o.isNotListT());
-  Expect.isTrue(o.isAlsoListT());
-  Expect.isTrue(!o.isNeitherListT());
-  for (var i = 0; i < 20; i++) {
-    // Make sure methods are optimized.
-    o.isT();
-    o.isNotT();
-    o.isListT();
-    o.isNotListT();
-    o.isAlsoListT();
-    o.isNeitherListT();
-  }
-  Expect.isTrue(!o.isT());
-  Expect.isTrue(o.isNotT());
-  Expect.isTrue(o.isListT());
-  Expect.isTrue(!o.isNotListT());
-  Expect.isTrue(o.isAlsoListT());
-  Expect.isTrue(!o.isNeitherListT());
-}
-
-main() {
-  testFooString();
-  testFooInt();
-}
diff --git a/tests/language_2/is/isnot_malformed_type_runtime_test.dart b/tests/language_2/is/isnot_malformed_type_runtime_test.dart
deleted file mode 100644
index 4e223a88de0..00000000000
--- a/tests/language_2/is/isnot_malformed_type_runtime_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-f(obj) {
-  // 'Baz' is not loaded, throws a type error on test.
-
-}
-
-main() {
-
-}
diff --git a/tests/language_2/is/isnot_malformed_type_test.dart b/tests/language_2/is/isnot_malformed_type_test.dart
deleted file mode 100644
index 6d7003c5564..00000000000
--- a/tests/language_2/is/isnot_malformed_type_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-f(obj) {
-  // 'Baz' is not loaded, throws a type error on test.
-  return (obj is! Baz);
-  //              ^^^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_TEST_WITH_UNDEFINED_NAME
-  // [cfe] 'Baz' isn't a type.
-}
-
-main() {
-  f(null);
-}
diff --git a/tests/language_2/is/malformed_type_runtime_test.dart b/tests/language_2/is/malformed_type_runtime_test.dart
deleted file mode 100644
index 879a637df15..00000000000
--- a/tests/language_2/is/malformed_type_runtime_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for the "is" and "as" operator with malformed type.
-
-import "package:expect/expect.dart";
-
-testEval(x) {
-  return x;
-}
-
-test99(e) {
-  // Test that a runtime error is thrown when the 'is' operator checks for a
-  // malformed type.
-
-}
-
-test98(e) {
-  // Test that a runtime error is thrown when the 'as' operator checks for a
-  // malformed type.
-
-}
-
-test97(e) {
-    // Check that the remaining expression after the type test
-    // with malformed type is parsed, but not executed at runtime.
-    // Regression test for issue 16985.
-
-}
-
-test96(e) {
-    // Check that the remaining expression after the type test
-    // with malformed type is parsed, but not executed at runtime.
-    // Regression test for issue 16985.
-
-}
-
-test95(e) {
-  // Check that the type-tested expression is evaluated before the
-  // runtime error is thrown.
-
-}
-
-test94(e) {
-  // Check that the type-tested expression is evaluated before the
-  // runtime error is thrown.
-
-}
-
-main() {
-
-
-
-
-
-
-}
diff --git a/tests/language_2/is/malformed_type_test.dart b/tests/language_2/is/malformed_type_test.dart
deleted file mode 100644
index 3bc0ee6e7a8..00000000000
--- a/tests/language_2/is/malformed_type_test.dart
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for the "is" and "as" operator with malformed type.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-testEval(x) {
-  return x;
-}
-
-test99(e) {
-  // Test that a runtime error is thrown when the 'is' operator checks for a
-  // malformed type.
-    if (e is Undefined) Expect.fail("unreachable");
-    //       ^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.TYPE_TEST_WITH_UNDEFINED_NAME
-    // [cfe] 'Undefined' isn't a type.
-}
-
-test98(e) {
-  // Test that a runtime error is thrown when the 'as' operator checks for a
-  // malformed type.
-    if (e as Undefined) Expect.fail("unreachable");
-    //       ^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.CAST_TO_NON_TYPE
-    // [cfe] 'Undefined' isn't a type.
-}
-
-test97(e) {
-    // Check that the remaining expression after the type test
-    // with malformed type is parsed, but not executed at runtime.
-    // Regression test for issue 16985.
-    if (e is Undefined && testEval(e)) Expect.fail("unreachable");
-    //       ^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.TYPE_TEST_WITH_UNDEFINED_NAME
-    // [cfe] 'Undefined' isn't a type.
-}
-
-test96(e) {
-    // Check that the remaining expression after the type test
-    // with malformed type is parsed, but not executed at runtime.
-    // Regression test for issue 16985.
-    if (e as Undefined && testEval(e)) Expect.fail("unreachable");
-    //       ^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.CAST_TO_NON_TYPE
-    // [cfe] 'Undefined' isn't a type.
-}
-
-test95(e) {
-  // Check that the type-tested expression is evaluated before the
-  // runtime error is thrown.
-    if (testEval(e) is Undefined) Expect.fail("unreachable");
-    //                 ^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.TYPE_TEST_WITH_UNDEFINED_NAME
-    // [cfe] 'Undefined' isn't a type.
-}
-
-test94(e) {
-  // Check that the type-tested expression is evaluated before the
-  // runtime error is thrown.
-    if (testEval(e) as Undefined) Expect.fail("unreachable");
-    //                 ^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.CAST_TO_NON_TYPE
-    // [cfe] 'Undefined' isn't a type.
-}
-
-main() {
-  test99("99 bottles");
-  test98("98 bottles");
-  test97("97 bottles");
-  test96("96 bottles");
-  test95("95 bottles");
-  test94("94 bottles");
-}
diff --git a/tests/language_2/is/nan_test.dart b/tests/language_2/is/nan_test.dart
deleted file mode 100644
index 571da26b5a8..00000000000
--- a/tests/language_2/is/nan_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  bool get isNaN => false;
-}
-
-main() {
-  Expect.isTrue(foo(double.nan));
-  Expect.isFalse(foo(new A()));
-  Expect.throwsNoSuchMethodError(() => foo('bar'));
-}
-
-foo(a) => a.isNaN;
diff --git a/tests/language_2/is/not_class1_test.dart b/tests/language_2/is/not_class1_test.dart
deleted file mode 100644
index 89f01eba1e5..00000000000
--- a/tests/language_2/is/not_class1_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Test that we expect a class after an 'is'.
-class A {}
-
-main() {
-  var a = A();
-  if (a is "A") return 0;
-  //       ^^^
-  // [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-  // [analyzer] SYNTACTIC_ERROR.EXPECTED_TYPE_NAME
-  // [cfe] Expected ')' before this.
-  // [cfe] Expected a type, but got '"A"'.
-  // [cfe] This couldn't be parsed.
-}
diff --git a/tests/language_2/is/not_class2_runtime_test.dart b/tests/language_2/is/not_class2_runtime_test.dart
deleted file mode 100644
index 607862768ef..00000000000
--- a/tests/language_2/is/not_class2_runtime_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Dart test program for catch that we expect a class after an 'is'. 'aa' is a
-// malformed type and a type error should be thrown upon test.
-
-import 'package:expect/expect.dart';
-
-class A {
-  const A();
-}
-
-class IsNotClass2NegativeTest {
-  static testMain() {
-    var a = new A();
-    var aa = new A();
-
-
-
-
-    return 0;
-  }
-}
-
-main() {
-  IsNotClass2NegativeTest.testMain();
-}
diff --git a/tests/language_2/is/not_class2_test.dart b/tests/language_2/is/not_class2_test.dart
deleted file mode 100644
index b66f1a4b405..00000000000
--- a/tests/language_2/is/not_class2_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test program for catch that we expect a class after an 'is'. 'aa' is a
-// malformed type and a type error should be thrown upon test.
-
-import 'package:expect/expect.dart';
-
-class A {
-  const A();
-}
-
-class IsNotClass2NegativeTest {
-  static testMain() {
-    var a = new A();
-    var aa = new A();
-
-    if (a is aa) {
-    //       ^^
-    // [analyzer] COMPILE_TIME_ERROR.TYPE_TEST_WITH_NON_TYPE
-    // [cfe] 'aa' isn't a type.
-      return 0;
-    }
-    return 0;
-  }
-}
-
-main() {
-  IsNotClass2NegativeTest.testMain();
-}
diff --git a/tests/language_2/is/not_class4_test.dart b/tests/language_2/is/not_class4_test.dart
deleted file mode 100644
index 62ea922da6d..00000000000
--- a/tests/language_2/is/not_class4_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Test that the parser emits an error when one 'is' expression follows
-/// another.
-class A {}
-
-main() {
-  var a = A();
-  if (a is A is A) return 0;
-  //         ^^
-  // [analyzer] SYNTACTIC_ERROR.UNEXPECTED_TOKEN
-  // [cfe] Unexpected token 'is'.
-}
diff --git a/tests/language_2/is/object_test.dart b/tests/language_2/is/object_test.dart
deleted file mode 100644
index 4be183a6401..00000000000
--- a/tests/language_2/is/object_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for the "is" type test operator.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-testTryCatch(x) {
-  try {
-    throw x;
-    Expect.fail("Exception '$x' should've been thrown");
-  } on Object catch (obj) {
-    Expect.equals(obj, x);
-  }
-}
-
-main() {
-  var evalCount = 0;
-  testEval(x) {
-    evalCount++;
-    return x;
-  }
-
-  // Test that types that match JS primitive types compare correctly to Object
-  var x = 1;
-  Expect.isTrue(x is Object);
-  var x2 = 'hi';
-  Expect.isTrue(x2 is Object);
-  var x3 = true;
-  Expect.isTrue(x3 is Object);
-  var x4 = null;
-  Expect.isTrue(x4 is Object);
-  var y;
-  Expect.isTrue(y is Object);
-
-  // Verify that operand is evaluated
-  Expect.isTrue(testEval(123) is Object);
-  Expect.equals(1, evalCount);
-  Expect.isTrue(testEval('world') is Object);
-  Expect.equals(2, evalCount);
-  Expect.isTrue(testEval(false) is Object);
-  Expect.equals(3, evalCount);
-  Expect.isTrue(testEval(null) is Object);
-  Expect.equals(4, evalCount);
-
-  // Verify that these objects are catchable
-  testTryCatch(444);
-  testTryCatch('abc');
-  testTryCatch(true);
-}
diff --git a/tests/language_2/is/operator_clash_test.dart b/tests/language_2/is/operator_clash_test.dart
deleted file mode 100644
index 20eafb86cfc..00000000000
--- a/tests/language_2/is/operator_clash_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class $B extends A {}
-
-class C implements $B {
-  // Try to clash with dart2js's isCLASS field.
-  var isB = false;
-  var $isB = false;
-  var is$B = false;
-  var is$$B = false;
-  var $is$B = false;
-
-  var isA = false;
-  var $isA = false;
-  var is$A = false;
-  var is$$A = false;
-  var $is$A = false;
-}
-
-int inscrutable(int x) => x == 0 ? 0 : x | inscrutable(x & (x - 1));
-
-main() {
-  var things = [new A(), new $B(), new C()];
-
-  var a = things[inscrutable(0)];
-  Expect.isTrue(a is A);
-  Expect.isFalse(a is $B);
-  Expect.isFalse(a is C);
-
-  var b = things[inscrutable(1)];
-  Expect.isTrue(b is A);
-  Expect.isTrue(b is $B);
-  Expect.isFalse(b is C);
-
-  var c = things[inscrutable(2)];
-  Expect.isTrue(c is A);
-  Expect.isTrue(c is $B);
-  Expect.isTrue(c is C);
-}
diff --git a/tests/language_2/is/operator_test.dart b/tests/language_2/is/operator_test.dart
deleted file mode 100644
index f9abce85b8a..00000000000
--- a/tests/language_2/is/operator_test.dart
+++ /dev/null
@@ -1,87 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for the "is" type test operator.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class I {}
-
-abstract class AI implements I {}
-
-class A implements AI {
-  const A();
-}
-
-class B implements I {
-  const B();
-}
-
-class C extends A {
-  const C() : super();
-}
-
-class IsOperatorTest {
-  static testMain() {
-    var a = new A();
-    var b = new B();
-    var c = new C();
-    var n = null;
-    Expect.equals(true, a is A);
-    Expect.equals(false, a is! A);
-    Expect.equals(true, b is B);
-    Expect.equals(false, b is! B);
-    Expect.equals(true, c is C);
-    Expect.equals(false, c is! C);
-    Expect.equals(true, c is A);
-    Expect.equals(false, c is! A);
-
-    Expect.equals(true, a is AI);
-    Expect.equals(false, a is! AI);
-    Expect.equals(true, a is I);
-    Expect.equals(false, a is! I);
-    Expect.equals(false, b is AI);
-    Expect.equals(true, b is! AI);
-    Expect.equals(true, b is I);
-    Expect.equals(false, b is! I);
-    Expect.equals(true, c is AI);
-    Expect.equals(false, c is! AI);
-    Expect.equals(true, c is I);
-    Expect.equals(false, c is! I);
-    Expect.equals(false, n is AI);
-    Expect.equals(true, n is! AI);
-    Expect.equals(false, n is I);
-    Expect.equals(true, n is! I);
-
-    Expect.equals(false, a is B);
-    Expect.equals(true, a is! B);
-    Expect.equals(false, a is C);
-    Expect.equals(true, a is! C);
-    Expect.equals(false, b is A);
-    Expect.equals(true, b is! A);
-    Expect.equals(false, b is C);
-    Expect.equals(true, b is! C);
-    Expect.equals(false, c is B);
-    Expect.equals(true, c is! B);
-    Expect.equals(false, n is A);
-    Expect.equals(true, n is! A);
-
-    Expect.equals(false, null is A);
-    Expect.equals(false, null is B);
-    Expect.equals(false, null is C);
-    Expect.equals(false, null is AI);
-    Expect.equals(false, null is I);
-
-    Expect.equals(true, null is! A);
-    Expect.equals(true, null is! B);
-    Expect.equals(true, null is! C);
-    Expect.equals(true, null is! AI);
-    Expect.equals(true, null is! I);
-  }
-}
-
-main() {
-  IsOperatorTest.testMain();
-}
diff --git a/tests/language_2/is/optimized_test.dart b/tests/language_2/is/optimized_test.dart
deleted file mode 100644
index cb1563232de..00000000000
--- a/tests/language_2/is/optimized_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Testing optimized 'is' tests.
-// VMOptions=--optimization-counter-threshold=20 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-bool isInt(x) => x is int;
-
-int isIntRes(x) {
-  if (x is int) {
-    return 1;
-  } else {
-    return 0;
-  }
-}
-
-int isNotIntRes(x) {
-  if (x is! int) {
-    return 1;
-  } else {
-    return 0;
-  }
-}
-
-int isIfThenElseIntRes(x) {
-  return x is int ? 1 : 0;
-}
-
-bool isString(x) => x is String;
-
-int isStringRes(x) {
-  if (x is String) {
-    return 1;
-  } else {
-    return 0;
-  }
-}
-
-int isNotStringRes(x) {
-  if (x is! String) {
-    return 1;
-  } else {
-    return 0;
-  }
-}
-
-main() {
-  for (int i = 0; i < 20; i++) {
-    Expect.isFalse(isInt(3.2));
-    Expect.isTrue(isInt(3));
-    Expect.isTrue(isInt(17179869184)); // Mint on ia32.
-    Expect.isFalse(isString(2.0));
-    Expect.isTrue(isString("Morgan"));
-  }
-  // No deoptimization of isInt possible since all types are known by the compiler
-
-  Expect.isFalse(isString(true));
-  for (int i = 0; i < 20; i++) {
-    Expect.isFalse(isInt(3.2));
-    Expect.isTrue(isInt(3));
-    Expect.isTrue(isInt(17179869184)); // Mint on ia32.
-    Expect.isFalse(isInt("hu"));
-    Expect.isFalse(isString(2.0));
-    Expect.isTrue(isString("Morgan"));
-    Expect.isFalse(isString(true));
-  }
-
-  for (int i = 0; i < 20; i++) {
-    Expect.equals(0, isIntRes(3.2));
-    Expect.equals(1, isIntRes(3));
-    Expect.equals(0, isIntRes("hi"));
-    Expect.equals(1, isNotIntRes(3.2));
-    Expect.equals(0, isNotIntRes(3));
-    Expect.equals(1, isNotIntRes("hi"));
-    Expect.equals(0, isIfThenElseIntRes(3.2));
-    Expect.equals(1, isIfThenElseIntRes(3));
-    Expect.equals(0, isIfThenElseIntRes("hi"));
-  }
-
-  for (int i = 0; i < 20; i++) {
-    Expect.equals(0, isStringRes(3.2));
-    Expect.equals(1, isStringRes("Lotus"));
-    Expect.equals(1, isNotStringRes(3.2));
-    Expect.equals(0, isNotStringRes("Lotus"));
-  }
-
-  // Deoptimize 'isStringRes', 'isNotIntRes'.
-  Expect.equals(0, isStringRes(null));
-  Expect.equals(1, isNotIntRes(null));
-  for (int i = 0; i < 20; i++) {
-    Expect.equals(0, isStringRes(3.2));
-    Expect.equals(1, isStringRes("Lotus"));
-    Expect.equals(0, isStringRes(null));
-
-    Expect.equals(1, isNotStringRes(3.2));
-    Expect.equals(0, isNotStringRes("Lotus"));
-    Expect.equals(1, isNotStringRes(null));
-  }
-}
diff --git a/tests/language_2/label/label3_runtime_1_test.dart b/tests/language_2/label/label3_runtime_1_test.dart
deleted file mode 100644
index 842c22f0547..00000000000
--- a/tests/language_2/label/label3_runtime_1_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-main() {
-  L: while (false) {
-    if (true) break L;
-  }
-  // Illegal: L is out of scope.
-
-}
diff --git a/tests/language_2/label/label3_runtime_test.dart b/tests/language_2/label/label3_runtime_test.dart
deleted file mode 100644
index 2758cabb925..00000000000
--- a/tests/language_2/label/label3_runtime_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-main() {
-  L: while (false) {
-
-  }
-  // Illegal: L is out of scope.
-
-}
diff --git a/tests/language_2/label/label3_test.dart b/tests/language_2/label/label3_test.dart
deleted file mode 100644
index 8de76db27c5..00000000000
--- a/tests/language_2/label/label3_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  L: while (false) {
-    if (true) break L;
-  }
-  // Illegal: L is out of scope.
-  continue L;
-//^^^^^^^^
-// [analyzer] SYNTACTIC_ERROR.CONTINUE_OUTSIDE_OF_LOOP
-// [cfe] A continue statement can't be used outside of a loop or switch statement.
-//         ^
-// [analyzer] COMPILE_TIME_ERROR.LABEL_UNDEFINED
-// [cfe] Can't find label 'L'.
-}
diff --git a/tests/language_2/label/label5_runtime_test.dart b/tests/language_2/label/label5_runtime_test.dart
deleted file mode 100644
index bfc0d955818..00000000000
--- a/tests/language_2/label/label5_runtime_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-main() {
-  var L = 33;
-  while (false) {
-    // Illegal: L is not a label.
-
-  }
-}
diff --git a/tests/language_2/label/label5_test.dart b/tests/language_2/label/label5_test.dart
deleted file mode 100644
index dde78b36773..00000000000
--- a/tests/language_2/label/label5_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  var L = 33;
-  while (false) {
-    // Illegal: L is not a label.
-    if (true) break L;
-    //              ^
-    // [analyzer] COMPILE_TIME_ERROR.LABEL_UNDEFINED
-    // [cfe] Can't break to 'L'.
-  }
-}
diff --git a/tests/language_2/label/label6_runtime_1_test.dart b/tests/language_2/label/label6_runtime_1_test.dart
deleted file mode 100644
index 08280fe7b9b..00000000000
--- a/tests/language_2/label/label6_runtime_1_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-main() {
-  L:
-  while (false) {
-    break;
-
-    void innerfunc() {
-      // Illegal: jump target is outside of function
-
-    }
-
-    innerfunc();
-  }
-}
diff --git a/tests/language_2/label/label6_runtime_2_test.dart b/tests/language_2/label/label6_runtime_2_test.dart
deleted file mode 100644
index 693ec51d975..00000000000
--- a/tests/language_2/label/label6_runtime_2_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-main() {
-  L:
-  while (false) {
-
-    break L;
-    void innerfunc() {
-      // Illegal: jump target is outside of function
-
-    }
-
-    innerfunc();
-  }
-}
diff --git a/tests/language_2/label/label6_runtime_test.dart b/tests/language_2/label/label6_runtime_test.dart
deleted file mode 100644
index 2fa8993a60b..00000000000
--- a/tests/language_2/label/label6_runtime_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-main() {
-  L:
-  while (false) {
-
-
-    void innerfunc() {
-      // Illegal: jump target is outside of function
-
-    }
-
-    innerfunc();
-  }
-}
diff --git a/tests/language_2/label/label6_test.dart b/tests/language_2/label/label6_test.dart
deleted file mode 100644
index 71b0275cded..00000000000
--- a/tests/language_2/label/label6_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  L:
-  while (false) {
-    break;
-    break L;
-    void innerfunc() {
-      // Illegal: jump target is outside of function
-      if (true) break L;
-      //        ^
-      // [cfe] Can't break to 'L' in a different function.
-      //              ^
-      // [analyzer] COMPILE_TIME_ERROR.LABEL_IN_OUTER_SCOPE
-    }
-
-    innerfunc();
-  }
-}
diff --git a/tests/language_2/label/label8_runtime_test.dart b/tests/language_2/label/label8_runtime_test.dart
deleted file mode 100644
index d3c87158a71..00000000000
--- a/tests/language_2/label/label8_runtime_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-main() {
-  int i;
-  // Grammar doesn't allow label on block for switch statement.
-  switch(i)
-
-  {
-    case 111:
-      while (false) {
-
-      }
-      i++;
-  }
-}
diff --git a/tests/language_2/label/label8_test.dart b/tests/language_2/label/label8_test.dart
deleted file mode 100644
index 90675c900c1..00000000000
--- a/tests/language_2/label/label8_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  int i;
-  // Grammar doesn't allow label on block for switch statement.
-  switch(i)
-  //      ^
-  // [analyzer] SYNTACTIC_ERROR.EXPECTED_BODY
-  // [cfe] A switch statement must have a body, even if it is empty.
-    L:
-  {
-    case 111:
-//  ^^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_IDENTIFIER_BUT_GOT_KEYWORD
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-// [analyzer] SYNTACTIC_ERROR.MISSING_STATEMENT
-// [cfe] 'case' can't be used as an identifier because it's a keyword.
-// [cfe] Expected ';' after this.
-// [cfe] Undefined name 'case'.
-//       ^^^
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-// [cfe] Expected ';' after this.
-//          ^
-// [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-// [analyzer] SYNTACTIC_ERROR.UNEXPECTED_TOKEN
-// [cfe] Expected an identifier, but got ':'.
-// [cfe] Unexpected token ':'.
-      while (false) {
-        break L;
-      }
-      i++;
-  }
-}
diff --git a/tests/language_2/label/label_test.dart b/tests/language_2/label/label_test.dart
deleted file mode 100644
index d255a5859ae..00000000000
--- a/tests/language_2/label/label_test.dart
+++ /dev/null
@@ -1,355 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test check that we can parse labels.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Helper {
-  static int ticks;
-
-  // Helper function to prevent endless loops in case labels or
-  // break/continue is broken.
-  static doAgain() {
-    ++ticks;
-    if (ticks > 300) {
-      // obfuscating man's assert(false)
-      Expect.equals(true, false);
-    }
-    return true;
-  }
-
-  static test1() {
-    var i = 1;
-    while (doAgain()) {
-      if (i > 0) break;
-      return 0;
-    }
-    return 111;
-  }
-
-  static test2() {
-    // Make sure we break out to default label.
-    var i = 1;
-    L:
-    while (doAgain()) {
-      // unused label
-      if (i > 0) break;
-      return 0;
-    }
-    return 111;
-  }
-
-  static test3() {
-    // Make sure we break out of outer loop.
-    var i = 1;
-    L:
-    while (doAgain()) {
-      while (doAgain()) {
-        if (i > 0) break L;
-        return 0;
-      }
-      return 1;
-    }
-    return 111;
-  }
-
-  static test4() {
-    // Make sure we break out of inner loop.
-    var i = 100;
-    L:
-    while (doAgain()) {
-      // unused label
-      while (doAgain()) {
-        if (i > 0) break;
-        return 0;
-      }
-      return 111;
-    }
-    return 1;
-  }
-
-  static test5() {
-    // Make sure we jump to loop condition.
-    var i = 10;
-    while (i > 0) {
-      i--;
-      if (true) continue; // without the if the following return is dead code.
-      return 0;
-    }
-    return 111;
-  }
-
-  static test6() {
-    // Make sure we jump to loop condition.
-    L:
-    for (int i = 10; i > 0; i--) {
-      // unreferenced label, should warn
-      if (true) continue; // without the if the following return is dead code.
-      return 0;
-    }
-    // Make sure this L does not conflict with previous L.
-    var k = 20;
-    L:
-    while (doAgain()) {
-      L0:
-      while (doAgain()) break L; // unreferenced label L0, should warn
-      return 1;
-    }
-    return 111;
-  }
-
-  static test7() {
-    // Just weird stuff.
-    var i = 10;
-    L:
-    do {
-      L:
-      while (doAgain()) {
-        if (true) break L; // without the if the following line is dead code.
-        continue L;
-      }
-      i = 0;
-      continue L;
-    } while (i == 10 && doAgain());
-    return 111;
-  }
-
-  static test8() {
-    L:
-    while (false) {
-      var L = 33; // OK, shouldn't collide with label.
-      if (true) break L;
-    }
-    return 111;
-  }
-
-  static test9() {
-    var i = 111;
-    L1:
-    if (i == 0) {
-      // unreferenced label, should warn
-      return 0;
-    }
-
-    L2:
-    while (i == 0) {
-      // unreferenced label, should warn
-      return 0;
-    }
-
-    L3: // useless label, should warn
-    return i;
-  }
-
-  // Labels should be allowed on block/if/for/switch/while/do stmts.
-  static test10() {
-    int i = 111;
-    // block
-    while (doAgain()) {
-      L:
-      {
-        while (doAgain()) {
-          break L;
-        }
-        i--;
-      }
-      break;
-    }
-    Expect.equals(111, i);
-
-    while (doAgain()) {
-      L:
-      if (doAgain()) {
-        while (doAgain()) {
-          break L;
-        }
-        i--;
-      }
-      break;
-    }
-    Expect.equals(111, i);
-
-    while (doAgain()) {
-      L:
-      for (; doAgain();) {
-        while (doAgain()) {
-          break L;
-        }
-        i--;
-      }
-      break;
-    }
-    Expect.equals(111, i);
-
-    L:
-    for (i in [111]) {
-      while (doAgain()) {
-        break L;
-      }
-      i--;
-      break;
-    }
-    Expect.equals(111, i);
-
-    L:
-    for (var j in [111]) {
-      while (doAgain()) {
-        break L;
-      }
-      i--;
-      break;
-    }
-    Expect.equals(111, i);
-
-    while (doAgain()) {
-      L:
-      switch (i) {
-        case 111:
-          while (doAgain()) {
-            break L;
-          }
-          i--;
-          break;
-        default:
-          i--;
-      }
-      break;
-    }
-    Expect.equals(111, i);
-
-    while (doAgain()) {
-      L:
-      do {
-        while (doAgain()) {
-          break L;
-        }
-        i--;
-      } while (doAgain());
-      break;
-    }
-    Expect.equals(111, i);
-
-    while (doAgain()) {
-      L:
-      try {
-        while (doAgain()) {
-          break L;
-        }
-        i--;
-      } finally {}
-      break;
-    }
-    Expect.equals(111, i);
-
-    return i;
-  }
-
-  static test11() {
-    // Kind of odd, but is valid and shouldn't be flagged as useless either.
-    L:
-    break L;
-    return 111;
-  }
-
-  static test12() {
-    int i = 111;
-
-    // label the inner block on compound stmts
-    if (true)
-      L:
-      {
-        while (doAgain()) {
-          break L;
-        }
-        i--;
-      }
-    Expect.equals(111, i);
-
-    // loop will execute each time, but won't execute code below the break
-    var forCount = 0;
-    for (forCount = 0; forCount < 2; forCount++)
-      L:
-      {
-        while (doAgain()) {
-          break L;
-        }
-        i--;
-        break;
-      }
-    Expect.equals(111, i);
-    Expect.equals(forCount, 2);
-
-    for (i in [111])
-      L:
-      {
-        while (doAgain()) {
-          break L;
-        }
-        i--;
-        break;
-      }
-    Expect.equals(111, i);
-
-    for (var j in [111])
-      L:
-      {
-        while (doAgain()) {
-          break L;
-        }
-        i--;
-        break;
-      }
-    Expect.equals(111, i);
-
-    if (false) {} else
-      L:
-      {
-        while (doAgain()) {
-          break L;
-        }
-        i--;
-      }
-    Expect.equals(111, i);
-
-    int whileCount = 0;
-    while (whileCount < 2)
-      L:
-      {
-        whileCount++;
-        while (doAgain()) {
-          break L;
-        }
-        i--;
-        break;
-      }
-    Expect.equals(111, i);
-    Expect.equals(2, whileCount);
-
-    return i;
-  }
-}
-
-class LabelTest {
-  static testMain() {
-    Helper.ticks = 0;
-    Expect.equals(111, Helper.test1());
-    Expect.equals(111, Helper.test2());
-    Expect.equals(111, Helper.test3());
-    Expect.equals(111, Helper.test4());
-    Expect.equals(111, Helper.test5());
-    Expect.equals(111, Helper.test6());
-    Expect.equals(111, Helper.test7());
-    Expect.equals(111, Helper.test8());
-    Expect.equals(111, Helper.test9());
-    Expect.equals(111, Helper.test10());
-    Expect.equals(111, Helper.test11());
-    Expect.equals(111, Helper.test12());
-  }
-}
-
-main() {
-  LabelTest.testMain();
-}
diff --git a/tests/language_2/language_2.status b/tests/language_2/language_2.status
deleted file mode 100644
index a3eb4bd9ab0..00000000000
--- a/tests/language_2/language_2.status
+++ /dev/null
@@ -1,44 +0,0 @@
-# Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-
-[ $compiler != dart2analyzer ]
-switch/case_warn_test: Skip # Analyzer only, see language_analyzer2.status
-
-[ $compiler == spec_parser ]
-double_literals/*: Skip # https://github.com/dart-lang/sdk/issues/34355
-invalid_returns/*: Skip # https://github.com/dart-lang/sdk/issues/34015
-mixin_declaration/*: Skip # See https://github.com/dart-lang/language/issues/7
-void/*: Skip # https://github.com/dart-lang/sdk/issues/34015
-
-[ $mode == debug ]
-class/large_class_declaration_test: Slow, Pass
-
-[ $mode == product ]
-assert/assert_test: SkipByDesign # Requires checked mode.
-generic/generic_test: SkipByDesign # Requires checked mode.
-map/literal4_test: SkipByDesign # Requires checked mode.
-parameter/named_type_test/01: SkipByDesign # Requires checked mode.
-parameter/named_type_test/02: SkipByDesign # Requires checked mode.
-parameter/named_type_test/03: SkipByDesign # Requires checked mode.
-parameter/positional_type_test/01: SkipByDesign # Requires checked mode.
-parameter/positional_type_test/02: SkipByDesign # Requires checked mode.
-regress/regress29784_test/02: SkipByDesign # Requires checked mode.
-stack_trace/demangle_ctors_test: SkipByDesign # Names are not scrubbed.
-type/checks_in_factory_method_test: SkipByDesign # Requires checked mode.
-
-[ $runtime != vm ]
-unsorted/disassemble_test: Skip # VM only test
-
-[ $compiler != dart2analyzer && $compiler != fasta ]
-identifier/built_in_type_annotation_test/*: SkipByDesign # Analyzer/CFE only tests.
-
-[ $compiler != dart2js && !$checked ]
-function_type/*: Skip # Needs checked mode.
-
-[ $compiler != dartk && $compiler != dartkp && $mode == debug && $runtime == vm ]
-identifier/built_in_type_annotation_test/set: Crash # Not supported by legacy VM front-end.
-
-[ $hot_reload || $hot_reload_rollback ]
-regress/regress22780_test/01: Crash # Issue 29094
-vm/optimized_stacktrace_test: Slow, Pass
diff --git a/tests/language_2/language_2_analyzer.status b/tests/language_2/language_2_analyzer.status
deleted file mode 100644
index f015cbb346c..00000000000
--- a/tests/language_2/language_2_analyzer.status
+++ /dev/null
@@ -1,8 +0,0 @@
-# Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-
-# Sections in this file should contain "$compiler == dart2analyzer".
-
-[ $compiler == dart2analyzer ]
-class/large_class_declaration_test: Slow, Pass
diff --git a/tests/language_2/language_2_dart2js.status b/tests/language_2/language_2_dart2js.status
deleted file mode 100644
index 8a0db5928cb..00000000000
--- a/tests/language_2/language_2_dart2js.status
+++ /dev/null
@@ -1,34 +0,0 @@
-# Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-# Sections in this file should contain "$compiler == dart2js".
-
-[ $compiler == dart2js ]
-async_star/async_star_await_for_test: Skip # evades flake detection https://github.com/dart-lang/sdk/issues/51086
-external_abstract_fields/external_fields_test: SkipByDesign # Non-JS-interop external members are not supported
-mixin_method_override_test/G5: Skip # Issue 34354
-number/int64_literal_runtime*_test: Skip # This is testing Dart 2.0 int64 semantics
-vm/*: SkipByDesign # Tests for the VM.
-
-[ $compiler != dart2js ]
-closure/minify_closure_variable_collision_test: SkipByDesign # Regression test for dart2js
-
-[ $builder_tag == dart2js_production && $compiler == dart2js ]
-call/implicit_tearoff_exceptions_test: SkipByDesign # No argument type checks in production mode, issue 45528
-control_flow_collections/for_non_bool_condition_test: Crash # Issue 36442
-regress/regress45428_test: SkipByDesign # No argument type checks in production mode, issue 45528
-
-[ $compiler == dart2js && $runtime == chromeOnAndroid ]
-override_field_test/02: Slow, Pass # TODO(kasperl): Please triage.
-
-[ $compiler == dart2js && $runtime == d8 ]
-import/conditional_string_test: SkipByDesign # No XHR in d8
-
-[ $compiler == dart2js && $runtime == jsshell ]
-await/for_test: Skip # Jsshell does not provide periodic timers, Issue 7728
-
-[ $compiler == dart2js && $system == windows ]
-canonicalize/hashing_memoize_array_test: Skip # Issue 37631
-canonicalize/hashing_memoize_instance_test: Skip # Issue 37631
-canonicalize/hashing_shallow_collision_array_test: Skip # Issue 37631
-canonicalize/hashing_shallow_collision_instance_test: Skip # Issue 37631
diff --git a/tests/language_2/language_2_dartdevc.status b/tests/language_2/language_2_dartdevc.status
deleted file mode 100644
index ebdbee41cbe..00000000000
--- a/tests/language_2/language_2_dartdevc.status
+++ /dev/null
@@ -1,16 +0,0 @@
-# Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-
-# Sections in this file should contain "$compiler == ddc".
-
-[ $compiler == ddc ]
-async_star/async_star_await_for_test: Skip # evades flake detection https://github.com/dart-lang/sdk/issues/51086
-async_star/throw_in_catch_test: Skip # Times out. Issue 29920
-external_abstract_fields/external_fields_test: SkipByDesign # Non-JS-interop external members are not supported
-number/int64_literal_runtime*_test: Skip # This is testing Dart 2.0 int64 semantics.
-superinterface_variance/*: Skip # Issue dart-lang/language#113
-vm/*: SkipByDesign # VM only tests.; VM only tests.
-
-[ $compiler == ddc && ($runtime == ff || $runtime == firefox) ]
-async/return_throw_test: Skip # Flaky but not enough to be detected. Re-enable pending a decision on the correct behavior. https://github.com/dart-lang/sdk/issues/44395
diff --git a/tests/language_2/language_2_kernel.status b/tests/language_2/language_2_kernel.status
deleted file mode 100644
index f0d51f42085..00000000000
--- a/tests/language_2/language_2_kernel.status
+++ /dev/null
@@ -1,124 +0,0 @@
-# Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-
-[ $compiler == app_jitk ]
-main/no_main_test/01: Crash
-number/web_int_literals_test/*: SkipByDesign # Test applies only to JavaScript targets
-vm/regress_27671_test: SkipByDesign # Relies on string comparison of exception message which may return '<optimized out>'
-
-[ $compiler == dartkp ]
-number/web_int_literals_test/*: SkipByDesign # Test applies only to JavaScript targets
-
-[ $compiler == fasta ]
-number/web_int_literals_test/*: SkipByDesign # Test applies only to JavaScript targets
-
-[ $fasta ]
-nnbd/*: Skip
-superinterface_variance/mixin_error_test/37: Crash # Issue dart-lang/language#113
-superinterface_variance/mixin_error_test/38: Crash # Issue dart-lang/language#113
-superinterface_variance/mixin_error_test/40: Crash # Issue dart-lang/language#113
-superinterface_variance/mixin_error_test/41: Crash # Issue dart-lang/language#113
-superinterface_variance/mixin_error_test/42: Crash # Issue dart-lang/language#113
-superinterface_variance/mixin_error_test/43: Crash # Issue dart-lang/language#113
-superinterface_variance/mixin_error_test/44: Crash # Issue dart-lang/language#113
-superinterface_variance/mixin_error_test/46: Crash # Issue dart-lang/language#113
-superinterface_variance/mixin_error_test/47: Crash # Issue dart-lang/language#113
-superinterface_variance/mixin_error_test/48: Crash # Issue dart-lang/language#113
-
-[ $arch == ia32 && $mode == debug ]
-*: Pass, Slow # The CFE is not run from AppJit snapshot, JIT warmup in debug mode very slow
-
-[ $builder_tag == obfuscated && $compiler == dartkp ]
-generic/function_dcall_test/01: SkipByDesign # Prints type names
-mixin/generic_test: SkipByDesign # Prints type names
-mixin/mixin3_test: SkipByDesign # Prints type names
-mixin/mixin5_test: SkipByDesign # Prints type names
-mixin/mixin6_test: SkipByDesign # Prints type names
-mixin/mixin_bound2_test: SkipByDesign # Prints type names
-unsorted/cyclic_type2_test: SkipByDesign # Prints type names
-unsorted/many_named_arguments_test: SkipByDesign # Checks names of arguments
-unsorted/symbol_literal_test/02: SkipByDesign # We don't obfuscate const Symbol constructor
-vm/bool_check_stack_traces_test: SkipByDesign # Looks for filenames in stacktrace output
-vm/no_such_args_error_message_vm_test: SkipByDesign # Looks for function name in error message
-vm/no_such_method_error_message_callable_vm_test: SkipByDesign # Expects unobfuscated method names
-vm/no_such_method_error_message_vm_test: SkipByDesign # Looks for unobfuscated name in error message
-
-[ $compiler == dartk && $mode == debug && ($hot_reload || $hot_reload_rollback) ]
-enum/duplicate_test/02: Crash # Issue 34606
-enum/duplicate_test/none: Crash # Issue 34606
-enum/private_test/01: Crash # Issue 34606
-unsorted/inference_enum_list_test: Skip # Issue 35885
-
-[ $compiler == dartk && $mode == product && $runtime == vm ]
-vm/lazy_async_exception_stack2_test: SkipByDesign
-vm/lazy_async_exception_stack_test: SkipByDesign
-
-# ===== dartk + vm status lines =====
-[ $compiler == dartk && $runtime == vm ]
-const/const2_test: Crash # Flaky
-main/no_main_test/01: Skip
-mixin/illegal_super_use_test: Skip # Issues 24478 and 23773
-mixin/illegal_superclass_test: Skip # Issues 24478 and 23773
-unsorted/disassemble_test: Slow, Crash # dartbug.com/34971
-vm/closure_memory_retention_test: Skip # KernelVM bug: Hits OOM
-vm/regress_29145_test: Skip # Issue 29145
-web_int_literals_test/*: SkipByDesign # Test applies only to JavaScript targets
-
-[ $compiler == dartk && $hot_reload_rollback ]
-symbol/conflict_test: Slow, Pass
-
-[ $compiler == dartk && ($hot_reload || $hot_reload_rollback) ]
-type_constants_test/none: Skip # Deferred libraries and hot reload.
-
-[ $compiler == dartkp && $mode == debug && $runtime == dart_precompiled ]
-vm/precompiled_static_initializer_test: Slow, Pass
-
-# ==== dartkp + dart_precompiled status lines ====
-[ $compiler == dartkp && $runtime == dart_precompiled ]
-assert/with_type_test_or_cast_test: Crash
-const/const2_test: Skip # Incompatible flag: --compile_all
-const/evaluation_test: SkipByDesign
-deferred/redirecting_factory_test: Crash # Issue 23408, KernelVM bug: Deferred loading kernel issue 30273.
-export/ambiguous_main_test: Skip # Issue 29895 Fail Issue 14763
-export/double_same_main_test: Skip # Issue 29895 Crash Issue 29895
-field/increment_bailout_test: SkipByDesign
-generic_methods_recursive_bound_test/03: Crash
-main/no_main_test/01: Skip
-main/not_a_function_test: Skip
-mixin/illegal_super_use_test: Skip # Issues 24478 and 23773
-mixin/illegal_superclass_test: Skip # Issues 24478 and 23773
-no_such_method/many_overridden_test.dart: SkipByDesign
-null_test/mirrors: Skip # Uses mirrors.
-null_test/none: SkipByDesign
-optimize/deopt_inlined_function_lazy_test: Skip # Incompatible flag: --deoptimize-alot
-unsorted/hello_dart_test: Skip # Incompatible flag: --compile_all
-unsorted/invocation_mirror2_test: SkipByDesign
-vm/closure_memory_retention_test: Skip # KernelVM bug: Hits OOM
-vm/lazy_async_exception_stack2_test: SkipByDesign
-vm/lazy_async_exception_stack_test: SkipByDesign
-vm/reflect_core_vm_test: SkipByDesign
-vm/regress_27671_test: Skip # Unsupported
-vm/regress_29145_test: Skip # Issue 29145
-
-[ $compiler == dartkp && $runtime == dart_precompiled && $checked ]
-assert/initializer_const_error2_test/cc01: Crash
-assert/initializer_const_error2_test/cc02: Crash
-assert/initializer_const_error2_test/cc03: Crash
-assert/initializer_const_error2_test/cc04: Crash
-assert/initializer_const_error2_test/cc05: Crash
-assert/initializer_const_error2_test/cc06: Crash
-assert/initializer_const_error2_test/cc07: Crash
-assert/initializer_const_error2_test/cc08: Crash
-assert/initializer_const_error2_test/cc09: Crash
-assert/initializer_const_error2_test/cc10: Crash
-assert/initializer_const_error2_test/cc11: Crash
-
-[ $compiler == dartkp && $system == windows ]
-unsorted/disassemble_test: Slow, Pass
-
-[ $mode == debug && $runtime == vm && ($compiler == app_jitk || $compiler == dartk) ]
-optimize/deopt_inlined_function_lazy_test: Skip
-
-[ $mode == debug && ($hot_reload || $hot_reload_rollback) ]
-regress/regress41983_test: Pass, Slow
diff --git a/tests/language_2/language_2_precompiled.status b/tests/language_2/language_2_precompiled.status
deleted file mode 100644
index dbb5365a8c0..00000000000
--- a/tests/language_2/language_2_precompiled.status
+++ /dev/null
@@ -1,34 +0,0 @@
-# Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-# Sections in this file should start with "$runtime == dart_precompiled".
-
-[ $arch == ia32 && $runtime == dart_precompiled ]
-vm/regress_24517_test: Pass, Fail # Issue 24517.
-
-[ $compiler != dart2analyzer && $runtime == dart_precompiled ]
-mixin/mixin2_test: Skip
-
-[ $runtime == dart_precompiled && $minified ]
-enum/duplicate_test/*: Skip # Uses Enum.toString()
-enum/enum_test: Skip # Uses Enum.toString()
-enum/private_test/*: Skip # Uses Enum.toString()
-mixin/generic_test: Skip
-mixin/mixin3_test: Skip
-mixin/mixin5_test: Skip
-mixin/mixin6_test: Skip
-mixin/mixin_bound2_test: Skip
-mixin/mixin_type_arguments_test: Skip
-mixin/super_2_test: Skip
-no_such_method/dispatcher_test: Skip # Uses new Symbol()
-stack_trace/full1_test: Skip
-stack_trace/full2_test: Skip
-stack_trace/full3_test: Skip
-unsorted/cyclic_type_test/*: Skip
-vm/no_such_args_error_message_vm_test: Skip
-vm/no_such_method_error_message_callable_vm_test: Skip
-vm/no_such_method_error_message_vm_test: Skip
-
-[ $runtime == dart_precompiled && ($mode == product || $minified) ]
-stack_trace/rethrow_error_test: SkipByDesign # obfuscation/minification and instruction deduplication cause names of frames to be mangled (expected)
-stack_trace/rethrow_nonerror_test: SkipByDesign # obfuscation/minification and instruction deduplication cause names of frames to be mangled (expected)
diff --git a/tests/language_2/language_2_spec_parser.status b/tests/language_2/language_2_spec_parser.status
deleted file mode 100644
index d5991466a44..00000000000
--- a/tests/language_2/language_2_spec_parser.status
+++ /dev/null
@@ -1,14 +0,0 @@
-# Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-
-[ $compiler == spec_parser ]
-class/large_class_declaration_test: Skip # JVM stack overflow.
-closure/type_test: Pass # Marked as RuntimeError for all in language_2.status.
-const/native_factory_test: Skip # Uses `native`.
-double/invalid_test: Skip # Contains illegally formatted double.
-nnbd/syntax/opt_out_nnbd_modifiers_test: Skip # Requires opt-out of NNBD.
-regress/regress1751477_test: Skip # Times out: 9 levels, exponential blowup => 430 secs.
-syntax/deep_nesting_expression_test: Skip # JVM stack overflow.
-syntax/deep_nesting_statement_test: Skip # JVM stack overflow.
-variance: Skip # Not yet supported.
diff --git a/tests/language_2/language_2_vm.status b/tests/language_2/language_2_vm.status
deleted file mode 100644
index 75a13aa05d8..00000000000
--- a/tests/language_2/language_2_vm.status
+++ /dev/null
@@ -1,23 +0,0 @@
-# Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-# Sections in this file should contain "$runtime == vm".
-
-[ $compiler == dartkp ]
-assert/initializer_const_error2_test/cc01: MissingCompileTimeError # Not reporting failed assert() at compile time.
-assert/initializer_const_error2_test/cc02: MissingCompileTimeError # Not reporting failed assert() at compile time.
-assert/initializer_const_error2_test/cc03: MissingCompileTimeError # Not reporting failed assert() at compile time.
-assert/initializer_const_error2_test/cc04: MissingCompileTimeError # Not reporting failed assert() at compile time.
-assert/initializer_const_error2_test/cc05: MissingCompileTimeError # Not reporting failed assert() at compile time.
-assert/initializer_const_error2_test/cc06: MissingCompileTimeError # Not reporting failed assert() at compile time.
-assert/initializer_const_error2_test/cc07: MissingCompileTimeError # Not reporting failed assert() at compile time.
-assert/initializer_const_error2_test/cc08: MissingCompileTimeError # Not reporting failed assert() at compile time.
-assert/initializer_const_error2_test/cc09: MissingCompileTimeError # Not reporting failed assert() at compile time.
-assert/initializer_const_error2_test/cc10: MissingCompileTimeError # Not reporting failed assert() at compile time.
-assert/initializer_const_error2_test/cc11: MissingCompileTimeError # Not reporting failed assert() at compile time.
-
-[ $arch == ia32 && $mode == release && $runtime == vm ]
-syntax/deep_nesting_expression_test/01: Crash, Pass # Issue 31496
-
-[ $runtime == dart_precompiled || $runtime == vm ]
-superinterface_variance/*: Skip # Issue dart-lang/language#113
diff --git a/tests/language_2/lazy/map_test.dart b/tests/language_2/lazy/map_test.dart
deleted file mode 100644
index fae2aa80ae5..00000000000
--- a/tests/language_2/lazy/map_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var data = {'a': 'a'};
-main() {
-  Expect.equals('a', data['a']);
-}
diff --git a/tests/language_2/lazy/static2_test.dart b/tests/language_2/lazy/static2_test.dart
deleted file mode 100644
index ab3f983ff5d..00000000000
--- a/tests/language_2/lazy/static2_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-final x = (int t) => t + 1;
-
-main() {
-  Expect.equals(499, x(498));
-  Expect.equals(42, x(41));
-}
diff --git a/tests/language_2/lazy/static3_test.dart b/tests/language_2/lazy/static3_test.dart
deleted file mode 100644
index b2c8b7339c5..00000000000
--- a/tests/language_2/lazy/static3_test.dart
+++ /dev/null
@@ -1,69 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-final x = foo();
-var x2 = foo2();
-var x3 = foo3();
-var x4 = foo4();
-var x5 = foo5();
-final x6 = foo6();
-int x7 = x7 + 1;
-
-foo() {
-  throw "interrupt initialization";
-}
-
-foo2() {
-  x2 = 499;
-  throw "interrupt initialization";
-}
-
-foo3() => x3 + 1;
-foo4() {
-  x4 = 498;
-  x4 = x4 + 1;
-  return x4;
-}
-
-foo5() {
-  x5 = 498;
-  x5 = x5 + 1;
-}
-
-foo6() {
-  try {
-    return x5 + 1;
-  } catch (e) {
-    return 499;
-  }
-}
-
-fib(x) {
-  if (x is! int) return 0;
-  if (x < 2) return x;
-  return fib(x - 1) + fib(x - 2);
-}
-
-main() {
-  Expect.throws(() => fib(x), (e) => e == "interrupt initialization");
-  Expect.equals(null, x);
-
-  Expect.throws(() => fib(x2), (e) => e == "interrupt initialization");
-  Expect.equals(null, x2);
-
-  Expect.throws(() => fib(x3), (e) => e is Error);
-  Expect.equals(null, x3);
-
-  Expect.equals(499, x4);
-
-  Expect.equals(null, x5);
-
-  Expect.equals(499, x6);
-
-  Expect.throws(() => fib(x7), (e) => e is Error);
-}
diff --git a/tests/language_2/lazy/static4_test.dart b/tests/language_2/lazy/static4_test.dart
deleted file mode 100644
index af9f042467b..00000000000
--- a/tests/language_2/lazy/static4_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-final x = foo(499);
-final y = foo(41) + 1;
-
-final t = bar(499);
-final u = bar(41) + 1;
-final v = bar("some string");
-
-foo(x) => x; // The return type will always be int.
-bar(x) => x; // The return type varies and can be int or String.
-
-main() {
-  Expect.equals(499, x);
-  Expect.equals(42, y);
-  Expect.equals(499, t);
-  Expect.equals(42, u);
-  Expect.equals("some string", v);
-}
diff --git a/tests/language_2/lazy/static5_test.dart b/tests/language_2/lazy/static5_test.dart
deleted file mode 100644
index 0a3fecd0d2a..00000000000
--- a/tests/language_2/lazy/static5_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-final x = (int t) => (int u) => t + u;
-
-main() {
-  Expect.equals(499, x(498)(1));
-  Expect.equals(42, x(39)(3));
-}
diff --git a/tests/language_2/lazy/static6_src.dart b/tests/language_2/lazy/static6_src.dart
deleted file mode 100644
index 14eb00f043e..00000000000
--- a/tests/language_2/lazy/static6_src.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/*
- * A lot of comments to make sure that the lazy initialization code has a
- * position that does not fit into lazy_static6_test.dart file.
- ******************************************************************************
- ******************************************************************************
- ******************************************************************************
- ******************************************************************************
- ******************************************************************************
- ******************************************************************************
- ******************************************************************************
- ******************************************************************************
- ******************************************************************************
- ******************************************************************************
- ******************************************************************************
- ******************************************************************************
- */
-part of lazy_static6_test;
-
-final x = (int t) => (int u) => t + u;
-
-main() {
-  Expect.equals(499, x(498)(1));
-  Expect.equals(42, x(39)(3));
-}
diff --git a/tests/language_2/lazy/static6_test.dart b/tests/language_2/lazy/static6_test.dart
deleted file mode 100644
index 7891c0514fc..00000000000
--- a/tests/language_2/lazy/static6_test.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-library lazy_static6_test;
-
-import "package:expect/expect.dart";
-part "static6_src.dart";
diff --git a/tests/language_2/lazy/static7_test.dart b/tests/language_2/lazy/static7_test.dart
deleted file mode 100644
index a05b244cfc9..00000000000
--- a/tests/language_2/lazy/static7_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var sideEffect = 0;
-int x = (() {
-  sideEffect++;
-  return 499;
-})();
-
-main() {
-  if (new DateTime.now().day >= -1) {
-    x = 42;
-  }
-  Expect.equals(42, x);
-  Expect.equals(0, sideEffect);
-}
diff --git a/tests/language_2/lazy/static8_test.dart b/tests/language_2/lazy/static8_test.dart
deleted file mode 100644
index 67f8adf78b5..00000000000
--- a/tests/language_2/lazy/static8_test.dart
+++ /dev/null
@@ -1,74 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test reentrant initializer - calls throw Error.
-
-var trace;
-
-final foo = bar;
-
-get bar {
-  trace.add('bar');
-  try {
-    return foo ?? 1;
-  } catch (e) {
-    trace.add(e is Error);
-  }
-  try {
-    return foo ?? 2;
-  } catch (e) {
-    trace.add(e is Error);
-  }
-  return 42;
-}
-
-void testTopLevel() {
-  trace = [];
-  var result = foo;
-  Expect.equals(42, result);
-  Expect.equals('bar,true,true', trace.join(','));
-  trace = [];
-  result = foo;
-  Expect.equals(42, result);
-  Expect.equals('', trace.join(','));
-}
-
-class X {
-  static final foo = X.bar;
-
-  static get bar {
-    trace.add('X.bar');
-    try {
-      return foo ?? 1;
-    } catch (e) {
-      trace.add(e is Error);
-    }
-    try {
-      return foo ?? 2;
-    } catch (e) {
-      trace.add(e is Error);
-    }
-    return 49;
-  }
-}
-
-void testClassStatic() {
-  trace = [];
-  var result = X.foo;
-  Expect.equals(49, result);
-  Expect.equals('X.bar,true,true', trace.join(','));
-  trace = [];
-  result = X.foo;
-  Expect.equals(49, result);
-  Expect.equals('', trace.join(','));
-}
-
-main() {
-  testTopLevel();
-  testClassStatic();
-}
diff --git a/tests/language_2/lazy/static_test.dart b/tests/language_2/lazy/static_test.dart
deleted file mode 100644
index cb030c0b2fb..00000000000
--- a/tests/language_2/lazy/static_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-final x = foo();
-final y = y2(y3);
-final y2 = incrementCreator();
-final y3 = fib(5);
-
-foo() => 499;
-
-incrementCreator() => (x) => x + 1;
-fib(x) {
-  if (x < 2) return x;
-  return fib(x - 1) + fib(x - 2);
-}
-
-var count = 0;
-sideEffect() => count++;
-
-final t = sideEffect();
-var t2 = sideEffect();
-
-class A {
-  static final a = toto();
-  static final b = b2(b3);
-  static final b2 = decrementCreator();
-  static final b3 = fact(5);
-
-  static toto() => 666;
-
-  static decrementCreator() => (x) => x - 1;
-  static fact(x) {
-    if (x <= 1) return x;
-    return x * fact(x - 1);
-  }
-}
-
-main() {
-  Expect.equals(499, x);
-  Expect.equals(6, y);
-  Expect.equals(666, A.a);
-  Expect.equals(119, A.b);
-  Expect.equals(0, t);
-  t2 = 499;
-  Expect.equals(499, t2);
-  Expect.equals(1, count);
-}
diff --git a/tests/language_2/lazy/throwing_variable_test.dart b/tests/language_2/lazy/throwing_variable_test.dart
deleted file mode 100644
index a6b96233195..00000000000
--- a/tests/language_2/lazy/throwing_variable_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that engines will not infer that [a] is always of type int.
-
-var a = foo();
-
-foo() {
-  () => 42;
-  if (true) throw 'Sorry';
-  return 42;
-}
-
-main() {
-  try {
-    a;
-  } catch (e) {
-    // Ignore.
-  }
-  if (a is num) throw 'Test failed';
-}
diff --git a/tests/language_2/least_upper_bound/expansive_runtime_test.dart b/tests/language_2/least_upper_bound/expansive_runtime_test.dart
deleted file mode 100644
index 69c63edb899..00000000000
--- a/tests/language_2/least_upper_bound/expansive_runtime_test.dart
+++ /dev/null
@@ -1,106 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test least upper bound through type checking of conditionals.
-
-class N<T> {
-  T get n => null;
-}
-
-class C1<T> extends N<N<C1<T>>> {
-  T get c1 => null;
-}
-
-class C2<T> extends N<N<C2<N<C2<T>>>>> {
-  T get c2 => null;
-}
-
-/**
- * Test that we don't try to find the least upper bound by applying the
- * algorithm for finding the most specific common declaration recursively on
- * type arguments.
- *
- * For C1<int> and N<C1<String>> this would result in this infinite chain of
- * computations:
- *
- * lub(C1<int>, N<C1<String>>) = lub(N<N<C1<int>>>, N<C1<String>>)
- * =>
- * lub(N<C1<int>>, C1<String>) = lub(N<C1<int>>, N<N<C1<String>>>)
- * =>
- * lub(C1<int>, N<C1<String>>) = lub(N<N<C1<int>>>, N<C1<String>>>)
- * => ...
- */
-void testC1(bool z, C1<int> a, N<C1<String>> b) {
-  if (z) {
-    // The least upper bound of C1<int> and N<C1<String>> is Object since the
-    // supertypes are
-    //     {C1<int>, N<N<C1<int>>>, Object} for C1<int> and
-    //     {N<C1<String>>, Object} for N<C1<String>> and
-    // Object is the most specific type in the intersection of the supertypes.
-
-    // Is least upper bound dynamic?
-
-    // Is least upper bound N<...> ?
-
-    // Is least upper bound C1<...> ?
-
-    // Is least upper bound N<dynamic> ?
-
-    // Is least upper bound N<N<...>> ?
-
-    // Is least upper bound N<C1<...>> ?
-
-  }
-}
-
-/**
- * Test that we don't try to find the least upper bound by applying the
- * algorithm for finding the most specific common declaration recursively on
- * type arguments.
- *
- * For C1<int> and N<C1<String>> this would result in this infinite and
- * expanding chain of computations:
- *
- * lub(C2<int>, N<C2<String>>) = lub(N<N<C2<N<C2<int>>>>>, N<C2<String>>)
- * =>
- * lub(N<C2<N<C2<int>>>>, C2<String>) =
- *                               lub(N<C2<N<C2<int>>>>, N<N<C2<N<C2<String>>>>>)
- * =>
- * lub(C2<N<C2<int>>>, N<C2<N<C2<String>>>>) =
- *                              lub(N<N<C2<N<C2<int>>>>>, N<C2<N<C2<String>>>>>)
- * => ...
- */
-
-void testC2(bool z, C2<int> a, N<C2<String>> b) {
-  if (z) {
-    // The least upper bound of C2<int> and N<C2<String>> is Object since the
-    // supertypes are
-    //     {C2<int>, N<N<C2<N<C2<int>>>>>, Object} for C1<int> and
-    //     {N<C2<String>>, Object} for N<C1<String>> and
-    // Object is the most specific type in the intersection of the supertypes.
-
-    // Is least upper bound dynamic?
-
-    // Is least upper bound N<...> ?
-
-    // Is least upper bound C2<...> ?
-
-    // Is least upper bound N<dynamic> ?
-
-    // Is least upper bound N<N<...>> ?
-
-    // Is least upper bound N<C2<...>> ?
-
-  }
-}
-
-void main() {
-  testC1(false, null, null);
-  testC2(false, null, null);
-}
diff --git a/tests/language_2/least_upper_bound/expansive_test.dart b/tests/language_2/least_upper_bound/expansive_test.dart
deleted file mode 100644
index 6a4b63ae7b1..00000000000
--- a/tests/language_2/least_upper_bound/expansive_test.dart
+++ /dev/null
@@ -1,149 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test least upper bound through type checking of conditionals.
-
-class N<T> {
-  T get n => null;
-}
-
-class C1<T> extends N<N<C1<T>>> {
-  T get c1 => null;
-}
-
-class C2<T> extends N<N<C2<N<C2<T>>>>> {
-  T get c2 => null;
-}
-
-/**
- * Test that we don't try to find the least upper bound by applying the
- * algorithm for finding the most specific common declaration recursively on
- * type arguments.
- *
- * For C1<int> and N<C1<String>> this would result in this infinite chain of
- * computations:
- *
- * lub(C1<int>, N<C1<String>>) = lub(N<N<C1<int>>>, N<C1<String>>)
- * =>
- * lub(N<C1<int>>, C1<String>) = lub(N<C1<int>>, N<N<C1<String>>>)
- * =>
- * lub(C1<int>, N<C1<String>>) = lub(N<N<C1<int>>>, N<C1<String>>>)
- * => ...
- */
-void testC1(bool z, C1<int> a, N<C1<String>> b) {
-  if (z) {
-    // The least upper bound of C1<int> and N<C1<String>> is Object since the
-    // supertypes are
-    //     {C1<int>, N<N<C1<int>>>, Object} for C1<int> and
-    //     {N<C1<String>>, Object} for N<C1<String>> and
-    // Object is the most specific type in the intersection of the supertypes.
-
-    // Is least upper bound dynamic?
-    (z ? a : b).z;
-    //          ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'z' isn't defined for the class 'Object'.
-
-    // Is least upper bound N<...> ?
-    (z ? a : b).n;
-    //          ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'n' isn't defined for the class 'Object'.
-
-    // Is least upper bound C1<...> ?
-    (z ? a : b).c1;
-    //          ^^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'c1' isn't defined for the class 'Object'.
-
-    // Is least upper bound N<dynamic> ?
-    (z ? a : b).n.z;
-    //          ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'n' isn't defined for the class 'Object'.
-
-    // Is least upper bound N<N<...>> ?
-    (z ? a : b).n.n;
-    //          ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'n' isn't defined for the class 'Object'.
-
-    // Is least upper bound N<C1<...>> ?
-    (z ? a : b).n.c1;
-    //          ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'n' isn't defined for the class 'Object'.
-  }
-}
-
-/**
- * Test that we don't try to find the least upper bound by applying the
- * algorithm for finding the most specific common declaration recursively on
- * type arguments.
- *
- * For C1<int> and N<C1<String>> this would result in this infinite and
- * expanding chain of computations:
- *
- * lub(C2<int>, N<C2<String>>) = lub(N<N<C2<N<C2<int>>>>>, N<C2<String>>)
- * =>
- * lub(N<C2<N<C2<int>>>>, C2<String>) =
- *                               lub(N<C2<N<C2<int>>>>, N<N<C2<N<C2<String>>>>>)
- * =>
- * lub(C2<N<C2<int>>>, N<C2<N<C2<String>>>>) =
- *                              lub(N<N<C2<N<C2<int>>>>>, N<C2<N<C2<String>>>>>)
- * => ...
- */
-
-void testC2(bool z, C2<int> a, N<C2<String>> b) {
-  if (z) {
-    // The least upper bound of C2<int> and N<C2<String>> is Object since the
-    // supertypes are
-    //     {C2<int>, N<N<C2<N<C2<int>>>>>, Object} for C1<int> and
-    //     {N<C2<String>>, Object} for N<C1<String>> and
-    // Object is the most specific type in the intersection of the supertypes.
-
-    // Is least upper bound dynamic?
-    (z ? a : b).z;
-    //          ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'z' isn't defined for the class 'Object'.
-
-    // Is least upper bound N<...> ?
-    (z ? a : b).n;
-    //          ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'n' isn't defined for the class 'Object'.
-
-    // Is least upper bound C2<...> ?
-    (z ? a : b).c2;
-    //          ^^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'c2' isn't defined for the class 'Object'.
-
-    // Is least upper bound N<dynamic> ?
-    (z ? a : b).n.z;
-    //          ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'n' isn't defined for the class 'Object'.
-
-    // Is least upper bound N<N<...>> ?
-    (z ? a : b).n.n;
-    //          ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'n' isn't defined for the class 'Object'.
-
-    // Is least upper bound N<C2<...>> ?
-    (z ? a : b).n.c2;
-    //          ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'n' isn't defined for the class 'Object'.
-  }
-}
-
-void main() {
-  testC1(false, null, null);
-  testC2(false, null, null);
-}
diff --git a/tests/language_2/least_upper_bound/least_upper_bound_test.dart b/tests/language_2/least_upper_bound/least_upper_bound_test.dart
deleted file mode 100644
index 5fd28641c42..00000000000
--- a/tests/language_2/least_upper_bound/least_upper_bound_test.dart
+++ /dev/null
@@ -1,131 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test least upper bound through type checking of conditionals.
-
-class A {
-  var a;
-}
-
-class B {
-  var b;
-}
-
-class C extends B {
-  var c;
-}
-
-class D extends B {
-  var d;
-}
-
-class E<T> {
-  T e;
-
-  E(this.e);
-}
-
-class F<T> extends E<T> {
-  T f;
-
-  F(T f)
-      : this.f = f,
-        super(f);
-}
-
-void main() {
-  testAB(new A(), new B());
-  testBC(new C(), new C());
-  testCD(new C(), new D());
-  testEE(new F<C>(new C()), new F<C>(new C()));
-  testEF(new F<C>(new C()), new F<C>(new C()));
-}
-
-void testAB(A a, B b) {
-  A r1 = true ? a : b;
-  B r2 = false ? a : b;
-  (true ? a : b).a = 0;
-  //             ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_SETTER
-  // [cfe] The setter 'a' isn't defined for the class 'Object'.
-  (false ? a : b).b = 0;
-  //              ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_SETTER
-  // [cfe] The setter 'b' isn't defined for the class 'Object'.
-  var c = new C();
-  (true ? a as dynamic : c).a = 0;
-  (false ? c : b).b = 0;
-}
-
-void testBC(B b, C c) {
-  B r1 = true ? b : c;
-  C r2 = false ? b : c;
-  (true ? b : c).b = 0;
-  (false ? b : c).c = 0;
-  //              ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_SETTER
-  // [cfe] The setter 'c' isn't defined for the class 'B'.
-  var a = null;
-  (true ? b : a).b = 0;
-  (false ? a : b).c = 0;
-  (true ? c : a).b = 0;
-  (false ? a : c).c = 0;
-}
-
-void testCD(C c, D d) {
-  C r1 = true ? c : d;
-  D r2 = false ? c : d;
-  (true ? c : d).b = 0;
-  (false ? c : d).b = 0;
-  (true ? c : d).c = 0;
-  //             ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_SETTER
-  // [cfe] The setter 'c' isn't defined for the class 'B'.
-  (false ? c : d).d = 0;
-  //              ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_SETTER
-  // [cfe] The setter 'd' isn't defined for the class 'B'.
-}
-
-void testEE(E<B> e, E<C> f) {
-  // The least upper bound of E<B> and E<C> is E<B>.
-  E<B> r1 = true ? e : f;
-  F<C> r2 = false ? e : f;
-  A r3 = true ? e : f;
-  //     ^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //          ^
-  // [cfe] A value of type 'E<B>' can't be assigned to a variable of type 'A'.
-  B r4 = false ? e : f;
-  //     ^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //           ^
-  // [cfe] A value of type 'E<B>' can't be assigned to a variable of type 'B'.
-  (true ? e : f).e = null;
-  (false ? e : f).e = null;
-}
-
-void testEF(E<B> e, F<C> f) {
-  // The least upper bound of E<B> and F<C> is E<B>.
-  E<B> r1 = true ? e : f;
-  F<C> r2 = false ? e : f;
-  A r3 = true ? e : f;
-  //     ^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //          ^
-  // [cfe] A value of type 'E<B>' can't be assigned to a variable of type 'A'.
-  B r4 = false ? e : f;
-  //     ^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //           ^
-  // [cfe] A value of type 'E<B>' can't be assigned to a variable of type 'B'.
-  var r5;
-  r5 = (true ? e : f).e;
-  r5 = (false ? e : f).f;
-  //                   ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'f' isn't defined for the class 'E<B>'.
-}
diff --git a/tests/language_2/least_upper_bound/runtime_10_test.dart b/tests/language_2/least_upper_bound/runtime_10_test.dart
deleted file mode 100644
index caeae51c2aa..00000000000
--- a/tests/language_2/least_upper_bound/runtime_10_test.dart
+++ /dev/null
@@ -1,100 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test least upper bound through type checking of conditionals.
-
-class A {
-  var a;
-}
-
-class B {
-  var b;
-}
-
-class C extends B {
-  var c;
-}
-
-class D extends B {
-  var d;
-}
-
-class E<T> {
-  T e;
-
-  E(this.e);
-}
-
-class F<T> extends E<T> {
-  T f;
-
-  F(T f)
-      : this.f = f,
-        super(f);
-}
-
-void main() {
-  testAB(new A(), new B());
-  testBC(new C(), new C());
-  testCD(new C(), new D());
-  testEE(new F<C>(new C()), new F<C>(new C()));
-  testEF(new F<C>(new C()), new F<C>(new C()));
-}
-
-void testAB(A a, B b) {
-
-
-
-
-  var c = new C();
-
-
-}
-
-void testBC(B b, C c) {
-
-
-
-
-  var a = null;
-
-
-  (true ? c : a).b = 0;
-
-}
-
-void testCD(C c, D d) {
-
-
-
-
-
-
-}
-
-void testEE(E<B> e, E<C> f) {
-  // The least upper bound of E<B> and E<C> is E<B>.
-
-
-
-
-
-
-}
-
-void testEF(E<B> e, F<C> f) {
-  // The least upper bound of E<B> and F<C> is E<B>.
-
-
-
-
-  var r5;
-
-
-}
diff --git a/tests/language_2/least_upper_bound/runtime_11_test.dart b/tests/language_2/least_upper_bound/runtime_11_test.dart
deleted file mode 100644
index 2f334d0809d..00000000000
--- a/tests/language_2/least_upper_bound/runtime_11_test.dart
+++ /dev/null
@@ -1,100 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test least upper bound through type checking of conditionals.
-
-class A {
-  var a;
-}
-
-class B {
-  var b;
-}
-
-class C extends B {
-  var c;
-}
-
-class D extends B {
-  var d;
-}
-
-class E<T> {
-  T e;
-
-  E(this.e);
-}
-
-class F<T> extends E<T> {
-  T f;
-
-  F(T f)
-      : this.f = f,
-        super(f);
-}
-
-void main() {
-  testAB(new A(), new B());
-  testBC(new C(), new C());
-  testCD(new C(), new D());
-  testEE(new F<C>(new C()), new F<C>(new C()));
-  testEF(new F<C>(new C()), new F<C>(new C()));
-}
-
-void testAB(A a, B b) {
-
-
-
-
-  var c = new C();
-
-
-}
-
-void testBC(B b, C c) {
-
-
-
-
-  var a = null;
-
-
-
-  (false ? a : c).c = 0;
-}
-
-void testCD(C c, D d) {
-
-
-
-
-
-
-}
-
-void testEE(E<B> e, E<C> f) {
-  // The least upper bound of E<B> and E<C> is E<B>.
-
-
-
-
-
-
-}
-
-void testEF(E<B> e, F<C> f) {
-  // The least upper bound of E<B> and F<C> is E<B>.
-
-
-
-
-  var r5;
-
-
-}
diff --git a/tests/language_2/least_upper_bound/runtime_12_test.dart b/tests/language_2/least_upper_bound/runtime_12_test.dart
deleted file mode 100644
index 5c37565fe89..00000000000
--- a/tests/language_2/least_upper_bound/runtime_12_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test least upper bound through type checking of conditionals.
-
-// [NNBD non-migrated]: This test relies on implicit downcasts, so isn't
-// meaningful under NNBD.
-
-class A {
-  var a;
-}
-
-class B {
-  var b;
-}
-
-class C extends B {
-  var c;
-}
-
-class D extends B {
-  var d;
-}
-
-class E<T> {
-  T e;
-
-  E(this.e);
-}
-
-class F<T> extends E<T> {
-  T f;
-
-  F(T f)
-      : this.f = f,
-        super(f);
-}
-
-void main() {
-  testAB(new A(), new B());
-  testBC(new C(), new C());
-  testCD(new C(), new D());
-  testEE(new F<C>(new C()), new F<C>(new C()));
-  testEF(new F<C>(new C()), new F<C>(new C()));
-}
-
-void testAB(A a, B b) {
-
-
-
-
-  var c = new C();
-
-
-}
-
-void testBC(B b, C c) {
-
-
-
-
-  var a = null;
-
-
-
-
-}
-
-void testCD(C c, D d) {
-  C r1 = true ? c : d;
-
-
-
-
-
-}
-
-void testEE(E<B> e, E<C> f) {
-  // The least upper bound of E<B> and E<C> is E<B>.
-
-
-
-
-
-
-}
-
-void testEF(E<B> e, F<C> f) {
-  // The least upper bound of E<B> and F<C> is E<B>.
-
-
-
-
-  var r5;
-
-
-}
diff --git a/tests/language_2/least_upper_bound/runtime_13_test.dart b/tests/language_2/least_upper_bound/runtime_13_test.dart
deleted file mode 100644
index 73b1ed1f950..00000000000
--- a/tests/language_2/least_upper_bound/runtime_13_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test least upper bound through type checking of conditionals.
-
-// [NNBD non-migrated]: This test relies on implicit downcasts, so isn't
-// meaningful under NNBD.
-
-class A {
-  var a;
-}
-
-class B {
-  var b;
-}
-
-class C extends B {
-  var c;
-}
-
-class D extends B {
-  var d;
-}
-
-class E<T> {
-  T e;
-
-  E(this.e);
-}
-
-class F<T> extends E<T> {
-  T f;
-
-  F(T f)
-      : this.f = f,
-        super(f);
-}
-
-void main() {
-  testAB(new A(), new B());
-  testBC(new C(), new C());
-  testCD(new C(), new D());
-  testEE(new F<C>(new C()), new F<C>(new C()));
-  testEF(new F<C>(new C()), new F<C>(new C()));
-}
-
-void testAB(A a, B b) {
-
-
-
-
-  var c = new C();
-
-
-}
-
-void testBC(B b, C c) {
-
-
-
-
-  var a = null;
-
-
-
-
-}
-
-void testCD(C c, D d) {
-
-  D r2 = false ? c : d;
-
-
-
-
-}
-
-void testEE(E<B> e, E<C> f) {
-  // The least upper bound of E<B> and E<C> is E<B>.
-
-
-
-
-
-
-}
-
-void testEF(E<B> e, F<C> f) {
-  // The least upper bound of E<B> and F<C> is E<B>.
-
-
-
-
-  var r5;
-
-
-}
diff --git a/tests/language_2/least_upper_bound/runtime_14_test.dart b/tests/language_2/least_upper_bound/runtime_14_test.dart
deleted file mode 100644
index 59ad272a557..00000000000
--- a/tests/language_2/least_upper_bound/runtime_14_test.dart
+++ /dev/null
@@ -1,100 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test least upper bound through type checking of conditionals.
-
-class A {
-  var a;
-}
-
-class B {
-  var b;
-}
-
-class C extends B {
-  var c;
-}
-
-class D extends B {
-  var d;
-}
-
-class E<T> {
-  T e;
-
-  E(this.e);
-}
-
-class F<T> extends E<T> {
-  T f;
-
-  F(T f)
-      : this.f = f,
-        super(f);
-}
-
-void main() {
-  testAB(new A(), new B());
-  testBC(new C(), new C());
-  testCD(new C(), new D());
-  testEE(new F<C>(new C()), new F<C>(new C()));
-  testEF(new F<C>(new C()), new F<C>(new C()));
-}
-
-void testAB(A a, B b) {
-
-
-
-
-  var c = new C();
-
-
-}
-
-void testBC(B b, C c) {
-
-
-
-
-  var a = null;
-
-
-
-
-}
-
-void testCD(C c, D d) {
-
-
-  (true ? c : d).b = 0;
-
-
-
-}
-
-void testEE(E<B> e, E<C> f) {
-  // The least upper bound of E<B> and E<C> is E<B>.
-
-
-
-
-
-
-}
-
-void testEF(E<B> e, F<C> f) {
-  // The least upper bound of E<B> and F<C> is E<B>.
-
-
-
-
-  var r5;
-
-
-}
diff --git a/tests/language_2/least_upper_bound/runtime_15_test.dart b/tests/language_2/least_upper_bound/runtime_15_test.dart
deleted file mode 100644
index 62b3188ee2c..00000000000
--- a/tests/language_2/least_upper_bound/runtime_15_test.dart
+++ /dev/null
@@ -1,100 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test least upper bound through type checking of conditionals.
-
-class A {
-  var a;
-}
-
-class B {
-  var b;
-}
-
-class C extends B {
-  var c;
-}
-
-class D extends B {
-  var d;
-}
-
-class E<T> {
-  T e;
-
-  E(this.e);
-}
-
-class F<T> extends E<T> {
-  T f;
-
-  F(T f)
-      : this.f = f,
-        super(f);
-}
-
-void main() {
-  testAB(new A(), new B());
-  testBC(new C(), new C());
-  testCD(new C(), new D());
-  testEE(new F<C>(new C()), new F<C>(new C()));
-  testEF(new F<C>(new C()), new F<C>(new C()));
-}
-
-void testAB(A a, B b) {
-
-
-
-
-  var c = new C();
-
-
-}
-
-void testBC(B b, C c) {
-
-
-
-
-  var a = null;
-
-
-
-
-}
-
-void testCD(C c, D d) {
-
-
-
-  (false ? c : d).b = 0;
-
-
-}
-
-void testEE(E<B> e, E<C> f) {
-  // The least upper bound of E<B> and E<C> is E<B>.
-
-
-
-
-
-
-}
-
-void testEF(E<B> e, F<C> f) {
-  // The least upper bound of E<B> and F<C> is E<B>.
-
-
-
-
-  var r5;
-
-
-}
diff --git a/tests/language_2/least_upper_bound/runtime_16_test.dart b/tests/language_2/least_upper_bound/runtime_16_test.dart
deleted file mode 100644
index fbfedae3f73..00000000000
--- a/tests/language_2/least_upper_bound/runtime_16_test.dart
+++ /dev/null
@@ -1,100 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test least upper bound through type checking of conditionals.
-
-class A {
-  var a;
-}
-
-class B {
-  var b;
-}
-
-class C extends B {
-  var c;
-}
-
-class D extends B {
-  var d;
-}
-
-class E<T> {
-  T e;
-
-  E(this.e);
-}
-
-class F<T> extends E<T> {
-  T f;
-
-  F(T f)
-      : this.f = f,
-        super(f);
-}
-
-void main() {
-  testAB(new A(), new B());
-  testBC(new C(), new C());
-  testCD(new C(), new D());
-  testEE(new F<C>(new C()), new F<C>(new C()));
-  testEF(new F<C>(new C()), new F<C>(new C()));
-}
-
-void testAB(A a, B b) {
-
-
-
-
-  var c = new C();
-
-
-}
-
-void testBC(B b, C c) {
-
-
-
-
-  var a = null;
-
-
-
-
-}
-
-void testCD(C c, D d) {
-
-
-
-
-
-
-}
-
-void testEE(E<B> e, E<C> f) {
-  // The least upper bound of E<B> and E<C> is E<B>.
-  E<B> r1 = true ? e : f;
-
-
-
-
-
-}
-
-void testEF(E<B> e, F<C> f) {
-  // The least upper bound of E<B> and F<C> is E<B>.
-
-
-
-
-  var r5;
-
-
-}
diff --git a/tests/language_2/least_upper_bound/runtime_17_test.dart b/tests/language_2/least_upper_bound/runtime_17_test.dart
deleted file mode 100644
index 53ba3f6935e..00000000000
--- a/tests/language_2/least_upper_bound/runtime_17_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test least upper bound through type checking of conditionals.
-
-// [NNBD non-migrated]: This test relies on implicit downcasts, so isn't
-// meaningful under NNBD.
-
-class A {
-  var a;
-}
-
-class B {
-  var b;
-}
-
-class C extends B {
-  var c;
-}
-
-class D extends B {
-  var d;
-}
-
-class E<T> {
-  T e;
-
-  E(this.e);
-}
-
-class F<T> extends E<T> {
-  T f;
-
-  F(T f)
-      : this.f = f,
-        super(f);
-}
-
-void main() {
-  testAB(new A(), new B());
-  testBC(new C(), new C());
-  testCD(new C(), new D());
-  testEE(new F<C>(new C()), new F<C>(new C()));
-  testEF(new F<C>(new C()), new F<C>(new C()));
-}
-
-void testAB(A a, B b) {
-
-
-
-
-  var c = new C();
-
-
-}
-
-void testBC(B b, C c) {
-
-
-
-
-  var a = null;
-
-
-
-
-}
-
-void testCD(C c, D d) {
-
-
-
-
-
-
-}
-
-void testEE(E<B> e, E<C> f) {
-  // The least upper bound of E<B> and E<C> is E<B>.
-
-  F<C> r2 = false ? e : f;
-
-
-
-
-}
-
-void testEF(E<B> e, F<C> f) {
-  // The least upper bound of E<B> and F<C> is E<B>.
-
-
-
-
-  var r5;
-
-
-}
diff --git a/tests/language_2/least_upper_bound/runtime_18_test.dart b/tests/language_2/least_upper_bound/runtime_18_test.dart
deleted file mode 100644
index 8600210ee39..00000000000
--- a/tests/language_2/least_upper_bound/runtime_18_test.dart
+++ /dev/null
@@ -1,100 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test least upper bound through type checking of conditionals.
-
-class A {
-  var a;
-}
-
-class B {
-  var b;
-}
-
-class C extends B {
-  var c;
-}
-
-class D extends B {
-  var d;
-}
-
-class E<T> {
-  T e;
-
-  E(this.e);
-}
-
-class F<T> extends E<T> {
-  T f;
-
-  F(T f)
-      : this.f = f,
-        super(f);
-}
-
-void main() {
-  testAB(new A(), new B());
-  testBC(new C(), new C());
-  testCD(new C(), new D());
-  testEE(new F<C>(new C()), new F<C>(new C()));
-  testEF(new F<C>(new C()), new F<C>(new C()));
-}
-
-void testAB(A a, B b) {
-
-
-
-
-  var c = new C();
-
-
-}
-
-void testBC(B b, C c) {
-
-
-
-
-  var a = null;
-
-
-
-
-}
-
-void testCD(C c, D d) {
-
-
-
-
-
-
-}
-
-void testEE(E<B> e, E<C> f) {
-  // The least upper bound of E<B> and E<C> is E<B>.
-
-
-
-
-  (true ? e : f).e = null;
-
-}
-
-void testEF(E<B> e, F<C> f) {
-  // The least upper bound of E<B> and F<C> is E<B>.
-
-
-
-
-  var r5;
-
-
-}
diff --git a/tests/language_2/least_upper_bound/runtime_19_test.dart b/tests/language_2/least_upper_bound/runtime_19_test.dart
deleted file mode 100644
index 7c5ebae7dc5..00000000000
--- a/tests/language_2/least_upper_bound/runtime_19_test.dart
+++ /dev/null
@@ -1,100 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test least upper bound through type checking of conditionals.
-
-class A {
-  var a;
-}
-
-class B {
-  var b;
-}
-
-class C extends B {
-  var c;
-}
-
-class D extends B {
-  var d;
-}
-
-class E<T> {
-  T e;
-
-  E(this.e);
-}
-
-class F<T> extends E<T> {
-  T f;
-
-  F(T f)
-      : this.f = f,
-        super(f);
-}
-
-void main() {
-  testAB(new A(), new B());
-  testBC(new C(), new C());
-  testCD(new C(), new D());
-  testEE(new F<C>(new C()), new F<C>(new C()));
-  testEF(new F<C>(new C()), new F<C>(new C()));
-}
-
-void testAB(A a, B b) {
-
-
-
-
-  var c = new C();
-
-
-}
-
-void testBC(B b, C c) {
-
-
-
-
-  var a = null;
-
-
-
-
-}
-
-void testCD(C c, D d) {
-
-
-
-
-
-
-}
-
-void testEE(E<B> e, E<C> f) {
-  // The least upper bound of E<B> and E<C> is E<B>.
-
-
-
-
-
-  (false ? e : f).e = null;
-}
-
-void testEF(E<B> e, F<C> f) {
-  // The least upper bound of E<B> and F<C> is E<B>.
-
-
-
-
-  var r5;
-
-
-}
diff --git a/tests/language_2/least_upper_bound/runtime_1_test.dart b/tests/language_2/least_upper_bound/runtime_1_test.dart
deleted file mode 100644
index 775c95e660f..00000000000
--- a/tests/language_2/least_upper_bound/runtime_1_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test least upper bound through type checking of conditionals.
-
-// [NNBD non-migrated]: This test relies on implicit downcasts, so isn't
-// meaningful under NNBD.
-
-class A {
-  var a;
-}
-
-class B {
-  var b;
-}
-
-class C extends B {
-  var c;
-}
-
-class D extends B {
-  var d;
-}
-
-class E<T> {
-  T e;
-
-  E(this.e);
-}
-
-class F<T> extends E<T> {
-  T f;
-
-  F(T f)
-      : this.f = f,
-        super(f);
-}
-
-void main() {
-  testAB(new A(), new B());
-  testBC(new C(), new C());
-  testCD(new C(), new D());
-  testEE(new F<C>(new C()), new F<C>(new C()));
-  testEF(new F<C>(new C()), new F<C>(new C()));
-}
-
-void testAB(A a, B b) {
-  A r1 = true ? a : b;
-
-
-
-  var c = new C();
-
-
-}
-
-void testBC(B b, C c) {
-
-
-
-
-  var a = null;
-
-
-
-
-}
-
-void testCD(C c, D d) {
-
-
-
-
-
-
-}
-
-void testEE(E<B> e, E<C> f) {
-  // The least upper bound of E<B> and E<C> is E<B>.
-
-
-
-
-
-
-}
-
-void testEF(E<B> e, F<C> f) {
-  // The least upper bound of E<B> and F<C> is E<B>.
-
-
-
-
-  var r5;
-
-
-}
diff --git a/tests/language_2/least_upper_bound/runtime_20_test.dart b/tests/language_2/least_upper_bound/runtime_20_test.dart
deleted file mode 100644
index 4e2fe64f957..00000000000
--- a/tests/language_2/least_upper_bound/runtime_20_test.dart
+++ /dev/null
@@ -1,100 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test least upper bound through type checking of conditionals.
-
-class A {
-  var a;
-}
-
-class B {
-  var b;
-}
-
-class C extends B {
-  var c;
-}
-
-class D extends B {
-  var d;
-}
-
-class E<T> {
-  T e;
-
-  E(this.e);
-}
-
-class F<T> extends E<T> {
-  T f;
-
-  F(T f)
-      : this.f = f,
-        super(f);
-}
-
-void main() {
-  testAB(new A(), new B());
-  testBC(new C(), new C());
-  testCD(new C(), new D());
-  testEE(new F<C>(new C()), new F<C>(new C()));
-  testEF(new F<C>(new C()), new F<C>(new C()));
-}
-
-void testAB(A a, B b) {
-
-
-
-
-  var c = new C();
-
-
-}
-
-void testBC(B b, C c) {
-
-
-
-
-  var a = null;
-
-
-
-
-}
-
-void testCD(C c, D d) {
-
-
-
-
-
-
-}
-
-void testEE(E<B> e, E<C> f) {
-  // The least upper bound of E<B> and E<C> is E<B>.
-
-
-
-
-
-
-}
-
-void testEF(E<B> e, F<C> f) {
-  // The least upper bound of E<B> and F<C> is E<B>.
-  E<B> r1 = true ? e : f;
-
-
-
-  var r5;
-
-
-}
diff --git a/tests/language_2/least_upper_bound/runtime_21_test.dart b/tests/language_2/least_upper_bound/runtime_21_test.dart
deleted file mode 100644
index 6cbb67c6d13..00000000000
--- a/tests/language_2/least_upper_bound/runtime_21_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test least upper bound through type checking of conditionals.
-
-// [NNBD non-migrated]: This test relies on implicit downcasts, so isn't
-// meaningful under NNBD.
-
-class A {
-  var a;
-}
-
-class B {
-  var b;
-}
-
-class C extends B {
-  var c;
-}
-
-class D extends B {
-  var d;
-}
-
-class E<T> {
-  T e;
-
-  E(this.e);
-}
-
-class F<T> extends E<T> {
-  T f;
-
-  F(T f)
-      : this.f = f,
-        super(f);
-}
-
-void main() {
-  testAB(new A(), new B());
-  testBC(new C(), new C());
-  testCD(new C(), new D());
-  testEE(new F<C>(new C()), new F<C>(new C()));
-  testEF(new F<C>(new C()), new F<C>(new C()));
-}
-
-void testAB(A a, B b) {
-
-
-
-
-  var c = new C();
-
-
-}
-
-void testBC(B b, C c) {
-
-
-
-
-  var a = null;
-
-
-
-
-}
-
-void testCD(C c, D d) {
-
-
-
-
-
-
-}
-
-void testEE(E<B> e, E<C> f) {
-  // The least upper bound of E<B> and E<C> is E<B>.
-
-
-
-
-
-
-}
-
-void testEF(E<B> e, F<C> f) {
-  // The least upper bound of E<B> and F<C> is E<B>.
-
-  F<C> r2 = false ? e : f;
-
-
-  var r5;
-
-
-}
diff --git a/tests/language_2/least_upper_bound/runtime_22_test.dart b/tests/language_2/least_upper_bound/runtime_22_test.dart
deleted file mode 100644
index 0d2398d0c0c..00000000000
--- a/tests/language_2/least_upper_bound/runtime_22_test.dart
+++ /dev/null
@@ -1,100 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test least upper bound through type checking of conditionals.
-
-class A {
-  var a;
-}
-
-class B {
-  var b;
-}
-
-class C extends B {
-  var c;
-}
-
-class D extends B {
-  var d;
-}
-
-class E<T> {
-  T e;
-
-  E(this.e);
-}
-
-class F<T> extends E<T> {
-  T f;
-
-  F(T f)
-      : this.f = f,
-        super(f);
-}
-
-void main() {
-  testAB(new A(), new B());
-  testBC(new C(), new C());
-  testCD(new C(), new D());
-  testEE(new F<C>(new C()), new F<C>(new C()));
-  testEF(new F<C>(new C()), new F<C>(new C()));
-}
-
-void testAB(A a, B b) {
-
-
-
-
-  var c = new C();
-
-
-}
-
-void testBC(B b, C c) {
-
-
-
-
-  var a = null;
-
-
-
-
-}
-
-void testCD(C c, D d) {
-
-
-
-
-
-
-}
-
-void testEE(E<B> e, E<C> f) {
-  // The least upper bound of E<B> and E<C> is E<B>.
-
-
-
-
-
-
-}
-
-void testEF(E<B> e, F<C> f) {
-  // The least upper bound of E<B> and F<C> is E<B>.
-
-
-
-
-  var r5;
-  r5 = (true ? e : f).e;
-
-}
diff --git a/tests/language_2/least_upper_bound/runtime_2_test.dart b/tests/language_2/least_upper_bound/runtime_2_test.dart
deleted file mode 100644
index 5ee9a36490e..00000000000
--- a/tests/language_2/least_upper_bound/runtime_2_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test least upper bound through type checking of conditionals.
-
-// [NNBD non-migrated]: This test relies on implicit downcasts, so isn't
-// meaningful under NNBD.
-
-class A {
-  var a;
-}
-
-class B {
-  var b;
-}
-
-class C extends B {
-  var c;
-}
-
-class D extends B {
-  var d;
-}
-
-class E<T> {
-  T e;
-
-  E(this.e);
-}
-
-class F<T> extends E<T> {
-  T f;
-
-  F(T f)
-      : this.f = f,
-        super(f);
-}
-
-void main() {
-  testAB(new A(), new B());
-  testBC(new C(), new C());
-  testCD(new C(), new D());
-  testEE(new F<C>(new C()), new F<C>(new C()));
-  testEF(new F<C>(new C()), new F<C>(new C()));
-}
-
-void testAB(A a, B b) {
-
-  B r2 = false ? a : b;
-
-
-  var c = new C();
-
-
-}
-
-void testBC(B b, C c) {
-
-
-
-
-  var a = null;
-
-
-
-
-}
-
-void testCD(C c, D d) {
-
-
-
-
-
-
-}
-
-void testEE(E<B> e, E<C> f) {
-  // The least upper bound of E<B> and E<C> is E<B>.
-
-
-
-
-
-
-}
-
-void testEF(E<B> e, F<C> f) {
-  // The least upper bound of E<B> and F<C> is E<B>.
-
-
-
-
-  var r5;
-
-
-}
diff --git a/tests/language_2/least_upper_bound/runtime_3_test.dart b/tests/language_2/least_upper_bound/runtime_3_test.dart
deleted file mode 100644
index 816e7997581..00000000000
--- a/tests/language_2/least_upper_bound/runtime_3_test.dart
+++ /dev/null
@@ -1,100 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test least upper bound through type checking of conditionals.
-
-class A {
-  var a;
-}
-
-class B {
-  var b;
-}
-
-class C extends B {
-  var c;
-}
-
-class D extends B {
-  var d;
-}
-
-class E<T> {
-  T e;
-
-  E(this.e);
-}
-
-class F<T> extends E<T> {
-  T f;
-
-  F(T f)
-      : this.f = f,
-        super(f);
-}
-
-void main() {
-  testAB(new A(), new B());
-  testBC(new C(), new C());
-  testCD(new C(), new D());
-  testEE(new F<C>(new C()), new F<C>(new C()));
-  testEF(new F<C>(new C()), new F<C>(new C()));
-}
-
-void testAB(A a, B b) {
-
-
-
-
-  var c = new C();
-  (true ? a as dynamic : c).a = 0;
-
-}
-
-void testBC(B b, C c) {
-
-
-
-
-  var a = null;
-
-
-
-
-}
-
-void testCD(C c, D d) {
-
-
-
-
-
-
-}
-
-void testEE(E<B> e, E<C> f) {
-  // The least upper bound of E<B> and E<C> is E<B>.
-
-
-
-
-
-
-}
-
-void testEF(E<B> e, F<C> f) {
-  // The least upper bound of E<B> and F<C> is E<B>.
-
-
-
-
-  var r5;
-
-
-}
diff --git a/tests/language_2/least_upper_bound/runtime_4_test.dart b/tests/language_2/least_upper_bound/runtime_4_test.dart
deleted file mode 100644
index eb008f4c6dc..00000000000
--- a/tests/language_2/least_upper_bound/runtime_4_test.dart
+++ /dev/null
@@ -1,100 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test least upper bound through type checking of conditionals.
-
-class A {
-  var a;
-}
-
-class B {
-  var b;
-}
-
-class C extends B {
-  var c;
-}
-
-class D extends B {
-  var d;
-}
-
-class E<T> {
-  T e;
-
-  E(this.e);
-}
-
-class F<T> extends E<T> {
-  T f;
-
-  F(T f)
-      : this.f = f,
-        super(f);
-}
-
-void main() {
-  testAB(new A(), new B());
-  testBC(new C(), new C());
-  testCD(new C(), new D());
-  testEE(new F<C>(new C()), new F<C>(new C()));
-  testEF(new F<C>(new C()), new F<C>(new C()));
-}
-
-void testAB(A a, B b) {
-
-
-
-
-  var c = new C();
-
-  (false ? c : b).b = 0;
-}
-
-void testBC(B b, C c) {
-
-
-
-
-  var a = null;
-
-
-
-
-}
-
-void testCD(C c, D d) {
-
-
-
-
-
-
-}
-
-void testEE(E<B> e, E<C> f) {
-  // The least upper bound of E<B> and E<C> is E<B>.
-
-
-
-
-
-
-}
-
-void testEF(E<B> e, F<C> f) {
-  // The least upper bound of E<B> and F<C> is E<B>.
-
-
-
-
-  var r5;
-
-
-}
diff --git a/tests/language_2/least_upper_bound/runtime_5_test.dart b/tests/language_2/least_upper_bound/runtime_5_test.dart
deleted file mode 100644
index 57ceed7e6ca..00000000000
--- a/tests/language_2/least_upper_bound/runtime_5_test.dart
+++ /dev/null
@@ -1,100 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test least upper bound through type checking of conditionals.
-
-class A {
-  var a;
-}
-
-class B {
-  var b;
-}
-
-class C extends B {
-  var c;
-}
-
-class D extends B {
-  var d;
-}
-
-class E<T> {
-  T e;
-
-  E(this.e);
-}
-
-class F<T> extends E<T> {
-  T f;
-
-  F(T f)
-      : this.f = f,
-        super(f);
-}
-
-void main() {
-  testAB(new A(), new B());
-  testBC(new C(), new C());
-  testCD(new C(), new D());
-  testEE(new F<C>(new C()), new F<C>(new C()));
-  testEF(new F<C>(new C()), new F<C>(new C()));
-}
-
-void testAB(A a, B b) {
-
-
-
-
-  var c = new C();
-
-
-}
-
-void testBC(B b, C c) {
-  B r1 = true ? b : c;
-
-
-
-  var a = null;
-
-
-
-
-}
-
-void testCD(C c, D d) {
-
-
-
-
-
-
-}
-
-void testEE(E<B> e, E<C> f) {
-  // The least upper bound of E<B> and E<C> is E<B>.
-
-
-
-
-
-
-}
-
-void testEF(E<B> e, F<C> f) {
-  // The least upper bound of E<B> and F<C> is E<B>.
-
-
-
-
-  var r5;
-
-
-}
diff --git a/tests/language_2/least_upper_bound/runtime_6_test.dart b/tests/language_2/least_upper_bound/runtime_6_test.dart
deleted file mode 100644
index b961fd3b6c1..00000000000
--- a/tests/language_2/least_upper_bound/runtime_6_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test least upper bound through type checking of conditionals.
-
-// [NNBD non-migrated]: This test relies on implicit downcasts, so isn't
-// meaningful under NNBD.
-
-class A {
-  var a;
-}
-
-class B {
-  var b;
-}
-
-class C extends B {
-  var c;
-}
-
-class D extends B {
-  var d;
-}
-
-class E<T> {
-  T e;
-
-  E(this.e);
-}
-
-class F<T> extends E<T> {
-  T f;
-
-  F(T f)
-      : this.f = f,
-        super(f);
-}
-
-void main() {
-  testAB(new A(), new B());
-  testBC(new C(), new C());
-  testCD(new C(), new D());
-  testEE(new F<C>(new C()), new F<C>(new C()));
-  testEF(new F<C>(new C()), new F<C>(new C()));
-}
-
-void testAB(A a, B b) {
-
-
-
-
-  var c = new C();
-
-
-}
-
-void testBC(B b, C c) {
-
-  C r2 = false ? b : c;
-
-
-  var a = null;
-
-
-
-
-}
-
-void testCD(C c, D d) {
-
-
-
-
-
-
-}
-
-void testEE(E<B> e, E<C> f) {
-  // The least upper bound of E<B> and E<C> is E<B>.
-
-
-
-
-
-
-}
-
-void testEF(E<B> e, F<C> f) {
-  // The least upper bound of E<B> and F<C> is E<B>.
-
-
-
-
-  var r5;
-
-
-}
diff --git a/tests/language_2/least_upper_bound/runtime_7_test.dart b/tests/language_2/least_upper_bound/runtime_7_test.dart
deleted file mode 100644
index 7557361c518..00000000000
--- a/tests/language_2/least_upper_bound/runtime_7_test.dart
+++ /dev/null
@@ -1,100 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test least upper bound through type checking of conditionals.
-
-class A {
-  var a;
-}
-
-class B {
-  var b;
-}
-
-class C extends B {
-  var c;
-}
-
-class D extends B {
-  var d;
-}
-
-class E<T> {
-  T e;
-
-  E(this.e);
-}
-
-class F<T> extends E<T> {
-  T f;
-
-  F(T f)
-      : this.f = f,
-        super(f);
-}
-
-void main() {
-  testAB(new A(), new B());
-  testBC(new C(), new C());
-  testCD(new C(), new D());
-  testEE(new F<C>(new C()), new F<C>(new C()));
-  testEF(new F<C>(new C()), new F<C>(new C()));
-}
-
-void testAB(A a, B b) {
-
-
-
-
-  var c = new C();
-
-
-}
-
-void testBC(B b, C c) {
-
-
-  (true ? b : c).b = 0;
-
-  var a = null;
-
-
-
-
-}
-
-void testCD(C c, D d) {
-
-
-
-
-
-
-}
-
-void testEE(E<B> e, E<C> f) {
-  // The least upper bound of E<B> and E<C> is E<B>.
-
-
-
-
-
-
-}
-
-void testEF(E<B> e, F<C> f) {
-  // The least upper bound of E<B> and F<C> is E<B>.
-
-
-
-
-  var r5;
-
-
-}
diff --git a/tests/language_2/least_upper_bound/runtime_8_test.dart b/tests/language_2/least_upper_bound/runtime_8_test.dart
deleted file mode 100644
index 0bbad5e8a49..00000000000
--- a/tests/language_2/least_upper_bound/runtime_8_test.dart
+++ /dev/null
@@ -1,100 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test least upper bound through type checking of conditionals.
-
-class A {
-  var a;
-}
-
-class B {
-  var b;
-}
-
-class C extends B {
-  var c;
-}
-
-class D extends B {
-  var d;
-}
-
-class E<T> {
-  T e;
-
-  E(this.e);
-}
-
-class F<T> extends E<T> {
-  T f;
-
-  F(T f)
-      : this.f = f,
-        super(f);
-}
-
-void main() {
-  testAB(new A(), new B());
-  testBC(new C(), new C());
-  testCD(new C(), new D());
-  testEE(new F<C>(new C()), new F<C>(new C()));
-  testEF(new F<C>(new C()), new F<C>(new C()));
-}
-
-void testAB(A a, B b) {
-
-
-
-
-  var c = new C();
-
-
-}
-
-void testBC(B b, C c) {
-
-
-
-
-  var a = null;
-  (true ? b : a).b = 0;
-
-
-
-}
-
-void testCD(C c, D d) {
-
-
-
-
-
-
-}
-
-void testEE(E<B> e, E<C> f) {
-  // The least upper bound of E<B> and E<C> is E<B>.
-
-
-
-
-
-
-}
-
-void testEF(E<B> e, F<C> f) {
-  // The least upper bound of E<B> and F<C> is E<B>.
-
-
-
-
-  var r5;
-
-
-}
diff --git a/tests/language_2/least_upper_bound/runtime_9_test.dart b/tests/language_2/least_upper_bound/runtime_9_test.dart
deleted file mode 100644
index 03aa22d1cd8..00000000000
--- a/tests/language_2/least_upper_bound/runtime_9_test.dart
+++ /dev/null
@@ -1,100 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test least upper bound through type checking of conditionals.
-
-class A {
-  var a;
-}
-
-class B {
-  var b;
-}
-
-class C extends B {
-  var c;
-}
-
-class D extends B {
-  var d;
-}
-
-class E<T> {
-  T e;
-
-  E(this.e);
-}
-
-class F<T> extends E<T> {
-  T f;
-
-  F(T f)
-      : this.f = f,
-        super(f);
-}
-
-void main() {
-  testAB(new A(), new B());
-  testBC(new C(), new C());
-  testCD(new C(), new D());
-  testEE(new F<C>(new C()), new F<C>(new C()));
-  testEF(new F<C>(new C()), new F<C>(new C()));
-}
-
-void testAB(A a, B b) {
-
-
-
-
-  var c = new C();
-
-
-}
-
-void testBC(B b, C c) {
-
-
-
-
-  var a = null;
-
-  (false ? a : b).c = 0;
-
-
-}
-
-void testCD(C c, D d) {
-
-
-
-
-
-
-}
-
-void testEE(E<B> e, E<C> f) {
-  // The least upper bound of E<B> and E<C> is E<B>.
-
-
-
-
-
-
-}
-
-void testEF(E<B> e, F<C> f) {
-  // The least upper bound of E<B> and F<C> is E<B>.
-
-
-
-
-  var r5;
-
-
-}
diff --git a/tests/language_2/least_upper_bound/runtime_test.dart b/tests/language_2/least_upper_bound/runtime_test.dart
deleted file mode 100644
index f0df39c2a50..00000000000
--- a/tests/language_2/least_upper_bound/runtime_test.dart
+++ /dev/null
@@ -1,100 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test least upper bound through type checking of conditionals.
-
-class A {
-  var a;
-}
-
-class B {
-  var b;
-}
-
-class C extends B {
-  var c;
-}
-
-class D extends B {
-  var d;
-}
-
-class E<T> {
-  T e;
-
-  E(this.e);
-}
-
-class F<T> extends E<T> {
-  T f;
-
-  F(T f)
-      : this.f = f,
-        super(f);
-}
-
-void main() {
-  testAB(new A(), new B());
-  testBC(new C(), new C());
-  testCD(new C(), new D());
-  testEE(new F<C>(new C()), new F<C>(new C()));
-  testEF(new F<C>(new C()), new F<C>(new C()));
-}
-
-void testAB(A a, B b) {
-
-
-
-
-  var c = new C();
-
-
-}
-
-void testBC(B b, C c) {
-
-
-
-
-  var a = null;
-
-
-
-
-}
-
-void testCD(C c, D d) {
-
-
-
-
-
-
-}
-
-void testEE(E<B> e, E<C> f) {
-  // The least upper bound of E<B> and E<C> is E<B>.
-
-
-
-
-
-
-}
-
-void testEF(E<B> e, F<C> f) {
-  // The least upper bound of E<B> and F<C> is E<B>.
-
-
-
-
-  var r5;
-
-
-}
diff --git a/tests/language_2/library/ambiguous_test.dart b/tests/language_2/library/ambiguous_test.dart
deleted file mode 100644
index 228bc10f9ba..00000000000
--- a/tests/language_2/library/ambiguous_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test should fail to load because we are importing two libraries
-// which define the same top level name foo, and we are referring to the name.
-
-import "library1.dart"; // Defines top level variable 'foo'
-import "library2.dart"; // Defines top level variable 'foo'
-
-class X
-extends baw //  //# 05: compile-time error
-{}
-
-main() {
-  print(foo); //# 00: compile-time error
-  print(bar()); //# 01: compile-time error
-  print(baz()); //# 02: compile-time error
-  print(bay()); //# 03: compile-time error
-  print(main is bax); //# 04: compile-time error
-  var x = new X();
-  print("No error expected if ambiguous definitions are not used.");
-}
diff --git a/tests/language_2/library/env_test.dart b/tests/language_2/library/env_test.dart
deleted file mode 100644
index 34fd5b55805..00000000000
--- a/tests/language_2/library/env_test.dart
+++ /dev/null
@@ -1,92 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:expect/config.dart';
-
-main() {
-  const NOT_PRESENT = false;
-
-  Expect.isTrue(const bool.fromEnvironment("dart.library.async"));
-  Expect.isTrue(const bool.fromEnvironment("dart.library.collection"));
-  Expect.isTrue(const bool.fromEnvironment("dart.library.convert"));
-  Expect.isTrue(const bool.fromEnvironment("dart.library.core"));
-  Expect.isTrue(const bool.fromEnvironment("dart.library.typed_data"));
-  Expect.isTrue(const bool.fromEnvironment("dart.library.developer"));
-
-  // Internal libraries should not be exposed.
-  Expect.equals(
-      NOT_PRESENT,
-      const bool.fromEnvironment("dart.library._internal",
-          defaultValue: NOT_PRESENT));
-
-  bool hasHtmlSupport;
-  hasHtmlSupport = true; //# has_html_support: ok
-  hasHtmlSupport = false; //# has_no_html_support: ok
-
-  if (hasHtmlSupport != null) {
-    bool expectedResult = hasHtmlSupport ? true : NOT_PRESENT;
-
-    Expect.equals(
-        expectedResult,
-        const bool.fromEnvironment("dart.library.html",
-            defaultValue: NOT_PRESENT));
-    Expect.equals(
-        expectedResult,
-        const bool.fromEnvironment("dart.library.indexed_db",
-            defaultValue: NOT_PRESENT));
-    Expect.equals(
-        expectedResult,
-        const bool.fromEnvironment("dart.library.svg",
-            defaultValue: NOT_PRESENT));
-    Expect.equals(
-        expectedResult,
-        const bool.fromEnvironment("dart.library.web_audio",
-            defaultValue: NOT_PRESENT));
-    Expect.equals(
-        expectedResult,
-        const bool.fromEnvironment("dart.library.web_gl",
-            defaultValue: NOT_PRESENT));
-  }
-
-  bool hasIoSupport;
-  hasIoSupport = true; //# has_io_support: ok
-  hasIoSupport = false; //# has_no_io_support: ok
-
-  if (hasIoSupport != null) {
-    // Web platforms override 'dart.library.io' to return "false".
-    // We don't test for the non-existence, but just make sure that
-    // dart.library.io is not set to true.
-    Expect.equals(hasIoSupport,
-        const bool.fromEnvironment("dart.library.io", defaultValue: false));
-  }
-
-  bool hasMirrorSupport = !isDart2jsConfiguration &&
-      !isDdcConfiguration && !isVmAotConfiguration;
-  Expect.equals(
-      hasMirrorSupport,
-      const bool.fromEnvironment("dart.library.mirrors",
-          defaultValue: NOT_PRESENT));
-
-  Expect.equals(
-      NOT_PRESENT,
-      const bool.fromEnvironment("dart.library.XYZ",
-          defaultValue: NOT_PRESENT));
-  Expect.equals(
-      NOT_PRESENT,
-      const bool.fromEnvironment("dart.library.Collection",
-          defaultValue: NOT_PRESENT));
-  Expect.equals(
-      NOT_PRESENT,
-      const bool.fromEnvironment("dart.library.converT",
-          defaultValue: NOT_PRESENT));
-  Expect.equals(NOT_PRESENT,
-      const bool.fromEnvironment("dart.library.", defaultValue: NOT_PRESENT));
-  Expect.equals(
-      NOT_PRESENT,
-      const bool.fromEnvironment("dart.library.core ",
-          defaultValue: NOT_PRESENT));
-}
diff --git a/tests/language_2/library/juxtaposition_lib.dart b/tests/language_2/library/juxtaposition_lib.dart
deleted file mode 100644
index d1fdb716a0f..00000000000
--- a/tests/language_2/library/juxtaposition_lib.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib;
-
-part "" "juxtaposition_" "part.dart";
diff --git a/tests/language_2/library/juxtaposition_part.dart b/tests/language_2/library/juxtaposition_part.dart
deleted file mode 100644
index dcae020d7cf..00000000000
--- a/tests/language_2/library/juxtaposition_part.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-part of lib;
-
-const c = 47;
diff --git a/tests/language_2/library/juxtaposition_test.dart b/tests/language_2/library/juxtaposition_test.dart
deleted file mode 100644
index 4c4b4a552f3..00000000000
--- a/tests/language_2/library/juxtaposition_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "" "juxtaposition_" "lib.dart";
-export "" "juxtaposition_" "lib.dart";
-
-main() {
-  Expect.equals(c, 47);
-}
diff --git a/tests/language_2/library/library1.dart b/tests/language_2/library/library1.dart
deleted file mode 100644
index 78c860cb772..00000000000
--- a/tests/language_2/library/library1.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-// @dart = 2.9
-
-library library1.dart;
-
-var foo;
-
-bar() => "library1.dart bar()";
-
-baz() => "library1.dart baz()";
-
-var bay;
-
-typedef int bax(int a, int b);
-
-class baw {}
diff --git a/tests/language_2/library/library1_lib.dart b/tests/language_2/library/library1_lib.dart
deleted file mode 100644
index 1d36227b7c6..00000000000
--- a/tests/language_2/library/library1_lib.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library Library1Lib;
-
-class A {
-  A() {}
-  String foo() {
-    return "foo-rty two";
-  }
-}
diff --git a/tests/language_2/library/library1_test.dart b/tests/language_2/library/library1_test.dart
deleted file mode 100644
index 6b3cfdf5fbe..00000000000
--- a/tests/language_2/library/library1_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing libraries.
-
-// @dart = 2.9
-
-library Library1Test.dart;
-
-import "package:expect/expect.dart";
-import "library1_lib.dart";
-
-main() {
-  Library1Test.testMain();
-}
-
-class Library1Test {
-  static testMain() {
-    var a = new A();
-    String s = a.foo();
-    Expect.equals(s, "foo-rty two");
-  }
-}
diff --git a/tests/language_2/library/library2.dart b/tests/language_2/library/library2.dart
deleted file mode 100644
index 8a1a94eed27..00000000000
--- a/tests/language_2/library/library2.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-var foo;
-var foo1 = 0;
-
-bar() => "library2.dart bar()";
-
-var baz;
-
-bay() => "library2.dart bay()";
-
-typedef double bax(int a, int b);
-
-var baw;
diff --git a/tests/language_2/library/library5_test.dart b/tests/language_2/library/library5_test.dart
deleted file mode 100644
index 86547eff1a6..00000000000
--- a/tests/language_2/library/library5_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-// @dart = 2.9
-
-library Library5Test.dart;
-
-import "package:expect/expect.dart";
-import "library5a.dart" as lib5a;
-import "library5b.dart" as lib5b;
-
-int foo(lib5a.Fun f) {
-  return f();
-}
-
-int bar(lib5b.Fun f) {
-  return f(42);
-}
-
-main() {
-  Expect.equals(41, foo(() => 41));
-  Expect.equals(42, bar((x) => x));
-}
diff --git a/tests/language_2/library/library5a.dart b/tests/language_2/library/library5a.dart
deleted file mode 100644
index 16d57c5a783..00000000000
--- a/tests/language_2/library/library5a.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-// @dart = 2.9
-
-library Library5a.dart;
-
-typedef int Fun();
diff --git a/tests/language_2/library/library5b.dart b/tests/language_2/library/library5b.dart
deleted file mode 100644
index a46bd3bbcc6..00000000000
--- a/tests/language_2/library/library5b.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-// @dart = 2.9
-
-library Library5b.dart;
-
-typedef int Fun(x);
diff --git a/tests/language_2/library/library6_test.dart b/tests/language_2/library/library6_test.dart
deleted file mode 100644
index fb089f917d3..00000000000
--- a/tests/language_2/library/library6_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This tests that it is not a compile-time error to both import a library
-// that defines a function type alias and to have a local definition for
-// another function type alias with the same name.
-
-import "library5a.dart"; // Defines function type alias Fun
-
-typedef int Fun(); // Does not conflict with definition of Fun from library5a
-
-main() {}
diff --git a/tests/language_2/library/library_test.dart b/tests/language_2/library/library_test.dart
deleted file mode 100644
index c7dffb53e82..00000000000
--- a/tests/language_2/library/library_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "nonexistent_library.dart"; //# 01: compile-time error
-
-main() {
-  print("Er, hello world? This should not be printed!");
-}
diff --git a/tests/language_2/library/prefixes.dart b/tests/language_2/library/prefixes.dart
deleted file mode 100644
index 377493f40d9..00000000000
--- a/tests/language_2/library/prefixes.dart
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library LibraryPrefixes.lib;
-
-import "prefixes_test1.dart";
-import "prefixes_test2.dart" as other;
-
-class LibraryPrefixes {
-  static void main(var expectEquals) {
-    var a = Constants.PI;
-    var b = other.Constants.PI;
-    expectEquals(3.14, a);
-    expectEquals(3.14, b);
-
-    expectEquals(1, Constants.foo);
-    expectEquals(2, other.Constants.foo);
-
-    expectEquals(-1, A.y);
-    expectEquals(0, other.A.y);
-
-    expectEquals(1, new A().x);
-    expectEquals(2, new other.A().x);
-
-    expectEquals(3, new A.named().x);
-    expectEquals(4, new other.A.named().x);
-
-    expectEquals(3, new A.fac().x);
-    expectEquals(4, new other.A.fac().x);
-
-    expectEquals(1, new B().x);
-    expectEquals(2, new other.B().x);
-
-    expectEquals(8, new B.named().x);
-    expectEquals(13, new other.B.named().x);
-
-    expectEquals(8, new B.fac().x);
-    expectEquals(13, new other.B.fac().x);
-
-    expectEquals(1, const C().x);
-    expectEquals(2, const other.C().x);
-
-    expectEquals(3, const C.named().x);
-    expectEquals(4, const other.C.named().x);
-
-    expectEquals(3, new C.fac().x);
-    expectEquals(4, new other.C.fac().x);
-
-    expectEquals(1, const D().x);
-    expectEquals(2, const other.D().x);
-
-    expectEquals(8, const D.named().x);
-    expectEquals(13, const other.D.named().x);
-
-    expectEquals(8, new D.fac().x);
-    expectEquals(13, new other.D.fac().x);
-
-    expectEquals(0, E.foo());
-    expectEquals(3, other.E.foo());
-
-    expectEquals(1, new E().bar());
-    expectEquals(4, new other.E().bar());
-
-    expectEquals(9, new E().toto(7)());
-    expectEquals(16, new other.E().toto(11)());
-
-    expectEquals(111, (new E.fun(100).f)());
-    expectEquals(1313, (new other.E.fun(1300).f)());
-
-    expectEquals(999, E.fooo(900)());
-    expectEquals(2048, other.E.fooo(1024)());
-  }
-}
diff --git a/tests/language_2/library/prefixes_test.dart b/tests/language_2/library/prefixes_test.dart
deleted file mode 100644
index fdc790375dc..00000000000
--- a/tests/language_2/library/prefixes_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library LibraryPrefixesTest.dart;
-
-import "package:expect/expect.dart";
-import "prefixes.dart";
-
-class LibraryPrefixesTest {
-  static testMain() {
-    LibraryPrefixes.main((a, b) {
-      Expect.equals(a, b);
-    });
-  }
-}
-
-main() {
-  LibraryPrefixesTest.testMain();
-}
diff --git a/tests/language_2/library/prefixes_test1.dart b/tests/language_2/library/prefixes_test1.dart
deleted file mode 100644
index 9cdc1c64969..00000000000
--- a/tests/language_2/library/prefixes_test1.dart
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Constants {
-  static const PI = 3.14;
-  static const foo = 1;
-}
-
-class A {
-  static const y = -1;
-  int x;
-  A() : x = 1 {}
-  A.named() : x = 3 {}
-  A.superC(x) : x = x + 7 {}
-  factory A.fac() {
-    return new A.named();
-  }
-}
-
-class B extends A {
-  B() : super() {}
-  B.named() : super.superC(1) {}
-  factory B.fac() {
-    return new B.named();
-  }
-}
-
-class C {
-  final int x;
-  const C() : x = 1;
-  const C.named() : x = 3;
-  const C.superC(x) : x = x + 7;
-  factory C.fac() {
-    return const C.named();
-  }
-}
-
-class D extends C {
-  const D() : super();
-  const D.named() : super.superC(1);
-  factory D.fac() {
-    return const D.named();
-  }
-}
-
-class E {
-  var f;
-  E() {}
-  E.fun(x)
-      : f = (() {
-          return x + 11;
-        }) {}
-  static foo() {
-    return 0;
-  }
-
-  static fooo(x) {
-    return () {
-      return x + 99;
-    };
-  }
-
-  bar() {
-    return 1;
-  }
-
-  toto(x) {
-    return () {
-      return x + 2;
-    };
-  }
-}
diff --git a/tests/language_2/library/prefixes_test2.dart b/tests/language_2/library/prefixes_test2.dart
deleted file mode 100644
index d1dd475c9ea..00000000000
--- a/tests/language_2/library/prefixes_test2.dart
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Constants {
-  static const PI = 3.14;
-  static const foo = 2;
-}
-
-class A {
-  static const y = 0;
-  int x;
-  A() : x = 2 {}
-  A.named() : x = 4 {}
-  A.superC(x) : x = x + 11 {}
-  factory A.fac() {
-    return new A.named();
-  }
-}
-
-class B extends A {
-  B() : super() {}
-  B.named() : super.superC(2) {}
-  factory B.fac() {
-    return new B.named();
-  }
-}
-
-class C {
-  final int x;
-  const C() : x = 2;
-  const C.named() : x = 4;
-  const C.superC(x) : x = x + 11;
-  factory C.fac() {
-    return const C.named();
-  }
-}
-
-class D extends C {
-  const D() : super();
-  const D.named() : super.superC(2);
-  factory D.fac() {
-    return const D.named();
-  }
-}
-
-class E {
-  var f;
-  E() {}
-  E.fun(x)
-      : f = (() {
-          return x + 13;
-        }) {}
-  static foo() {
-    return 3;
-  }
-
-  static fooo(x) {
-    return () {
-      return x + 1024;
-    };
-  }
-
-  bar() {
-    return 4;
-  }
-
-  toto(x) {
-    return () {
-      return x + 5;
-    };
-  }
-}
diff --git a/tests/language_2/library/private_in_constructor_a.dart b/tests/language_2/library/private_in_constructor_a.dart
deleted file mode 100644
index 0353149653d..00000000000
--- a/tests/language_2/library/private_in_constructor_a.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library LibraryPrivateInConstructorA;
-
-class PrivateA {
-  const PrivateA();
-  final _val = 499;
-}
-
-var fooA = const PrivateA();
-
-class A {
-  var x;
-  A() : this.x = fooA._val;
-}
diff --git a/tests/language_2/library/private_in_constructor_b.dart b/tests/language_2/library/private_in_constructor_b.dart
deleted file mode 100644
index 04f717336c0..00000000000
--- a/tests/language_2/library/private_in_constructor_b.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library LibraryPrivateInConstructorB;
-
-import "private_in_constructor_a.dart";
-
-class PrivateB {
-  const PrivateB();
-  final _val = 42;
-}
-
-var fooB = const PrivateB();
-
-class B extends A {
-  var y;
-  B() : this.y = fooB._val;
-}
diff --git a/tests/language_2/library/private_in_constructor_test.dart b/tests/language_2/library/private_in_constructor_test.dart
deleted file mode 100644
index c26bedc16be..00000000000
--- a/tests/language_2/library/private_in_constructor_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library LibraryPrivateInConstructor;
-
-import "package:expect/expect.dart";
-import "private_in_constructor_a.dart";
-import "private_in_constructor_b.dart";
-
-main() {
-  var b = new B();
-  Expect.equals(499, b.x);
-  Expect.equals(42, b.y);
-}
diff --git a/tests/language_2/library/same_name_used_lib1.dart b/tests/language_2/library/same_name_used_lib1.dart
deleted file mode 100644
index 67c946a06f0..00000000000
--- a/tests/language_2/library/same_name_used_lib1.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib1;
-
-import 'same_name_used_lib2.dart' as lib2;
-
-abstract class X {}
-
-X makeX() {
-  return new lib2.X();
-}
diff --git a/tests/language_2/library/same_name_used_lib2.dart b/tests/language_2/library/same_name_used_lib2.dart
deleted file mode 100644
index 7b9c605fd95..00000000000
--- a/tests/language_2/library/same_name_used_lib2.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib2;
-
-import 'same_name_used_lib1.dart' as lib1; // for abstract class X.
-
-class X implements lib1.X {
-  X();
-  toString() => 'lib2.X';
-}
diff --git a/tests/language_2/library/same_name_used_test.dart b/tests/language_2/library/same_name_used_test.dart
deleted file mode 100644
index 9efc200cf45..00000000000
--- a/tests/language_2/library/same_name_used_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// 'X' is defined as an abstract class in lib1 and a class implementing that
-// abstract class in lib2.  Use of import prefixes should allow this.
-
-library main;
-
-import "package:expect/expect.dart";
-import "same_name_used_lib1.dart";
-
-main() {
-  var x = makeX();
-  Expect.equals('lib2.X', '$x');
-}
diff --git a/tests/language_2/library1.dart b/tests/language_2/library1.dart
deleted file mode 100644
index 78c860cb772..00000000000
--- a/tests/language_2/library1.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-// @dart = 2.9
-
-library library1.dart;
-
-var foo;
-
-bar() => "library1.dart bar()";
-
-baz() => "library1.dart baz()";
-
-var bay;
-
-typedef int bax(int a, int b);
-
-class baw {}
diff --git a/tests/language_2/library10.dart b/tests/language_2/library10.dart
deleted file mode 100644
index 9a173790c43..00000000000
--- a/tests/language_2/library10.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-// @dart = 2.9
-
-library library10.dart;
-
-import "library11.dart" as lib11;
-import "package:expect/expect.dart";
-
-class Library10 {
-  Library10(this.fld);
-  func() {
-    return 2;
-  }
-
-  var fld;
-  static static_func() {
-    var result = 0;
-    var obj = new lib11.Library11(4);
-    result = obj.fld;
-    Expect.equals(4, result);
-    result += obj.func();
-    Expect.equals(7, result);
-    result += lib11.Library11.static_func();
-    Expect.equals(9, result);
-    result += lib11.Library11.static_fld;
-    Expect.equals(10, result);
-    Expect.equals(100, lib11.top_level11);
-    Expect.equals(200, lib11.top_level_func11());
-    return 3;
-  }
-
-  static var static_fld = 4;
-}
-
-const int top_level10 = 10;
-top_level_func10() {
-  return 20;
-}
diff --git a/tests/language_2/library11.dart b/tests/language_2/library11.dart
deleted file mode 100644
index 5523666d676..00000000000
--- a/tests/language_2/library11.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-// @dart = 2.9
-
-library library11.dart;
-
-class Library11 {
-  Library11(this.fld);
-  Library11.namedConstructor(this.fld);
-  func() {
-    return 3;
-  }
-
-  var fld;
-  static static_func() {
-    return 2;
-  }
-
-  static var static_fld = 1;
-}
-
-class Library111<T> {
-  Library111.namedConstructor(T this.fld);
-  T fld;
-}
-
-const int top_level11 = 100;
-top_level_func11() {
-  return 200;
-}
diff --git a/tests/language_2/library12.dart b/tests/language_2/library12.dart
deleted file mode 100644
index 3203a89f3f8..00000000000
--- a/tests/language_2/library12.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-// @dart = 2.9
-
-library library12.dart;
-
-import 'package:expect/expect.dart';
-
-import "library11.dart";
-
-class Library12 {
-  Library12(this.fld);
-  Library12.other(fld, multiplier) {
-    this.fld = fld * multiplier;
-  }
-  func() {
-    return 2;
-  }
-
-  var fld;
-  static static_func() {
-    var result = 0;
-    var obj = new Library11(4);
-    result = obj.fld;
-    Expect.equals(4, result);
-    result += obj.func();
-    Expect.equals(7, result);
-    result += Library11.static_func();
-    Expect.equals(9, result);
-    result += Library11.static_fld;
-    Expect.equals(10, result);
-    Expect.equals(100, top_level11);
-    Expect.equals(200, top_level_func11());
-    return 3;
-  }
-
-  static var static_fld = 4;
-}
-
-abstract class Library12Interface {
-  Library12 addObjects(Library12 value1, Library12 value2);
-}
-
-const int top_level12 = 10;
-top_level_func12() {
-  return 20;
-}
diff --git a/tests/language_2/library2.dart b/tests/language_2/library2.dart
deleted file mode 100644
index 8a1a94eed27..00000000000
--- a/tests/language_2/library2.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-var foo;
-var foo1 = 0;
-
-bar() => "library2.dart bar()";
-
-var baz;
-
-bay() => "library2.dart bay()";
-
-typedef double bax(int a, int b);
-
-var baw;
diff --git a/tests/language_2/list/double_index_in_loop2_test.dart b/tests/language_2/list/double_index_in_loop2_test.dart
deleted file mode 100644
index 7633b07e51e..00000000000
--- a/tests/language_2/list/double_index_in_loop2_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing arrays.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-bar() => true;
-
-tata() => 1.5;
-
-// The type propagation in Dart2Js wrongly took the intersection of all incoming
-// types in a loop-phi. In this case the back-edge brought type 'number' which,
-// combined with 'integer' (i = 0) was narrowed to 'integer'. As a result no
-// check was inserted for the list access.
-foo(a) {
-  var i;
-  if (bar()) {
-    // t's desired type is conflicting. Once it is used as array receiver. And
-    // once as integer. The backward propagation thus can't decide.
-    // The forward declaration, however, will assign type num.
-    dynamic t = 0 + tata();
-    i = t;
-    if (!bar()) t[0];
-  } else {
-    i = 0;
-  }
-  for (int j = 0; j < 1; j++) {
-    // The phi, combining the two 'i's must reach the conclusion that i is of
-    // type num and therefore needs a check before accessing the array.
-    a[i];
-  }
-}
-
-main() {
-  Expect.throws(() => foo([1, 2]));
-}
diff --git a/tests/language_2/list/double_index_in_loop_test.dart b/tests/language_2/list/double_index_in_loop_test.dart
deleted file mode 100644
index 92ab549541c..00000000000
--- a/tests/language_2/list/double_index_in_loop_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing arrays.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-bar() => true;
-
-// The type propagation in Dart2Js wrongly took the intersection of all incoming
-// types in a loop-phi. In this case the back-edge brought type 'number' which,
-// combined with 'integer' (i = 0) was narrowed to 'integer'. As a result no
-// check was inserted for the list access.
-foo(a) {
-  num i = 0;
-  while (true) {
-    if (i > 1) return a[i];
-    if (bar()) {
-      // Adding a double guarantees a double result. Therefore guard by an if.
-      i = i + 1.5;
-    }
-  }
-}
-
-main() {
-  Expect.throws(() => foo([1, 2]));
-}
diff --git a/tests/language_2/list/in_closure_test.dart b/tests/language_2/list/in_closure_test.dart
deleted file mode 100644
index 539b0abc97a..00000000000
--- a/tests/language_2/list/in_closure_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to see aborting closure
-// bodies as aborting their enclosing element.
-
-import "package:expect/expect.dart";
-
-main() {
-  var c = () {
-    throw 42;
-  };
-  () {
-    // dart2js would not seen this initialization and therefore think
-    // that the argument passed to a is a list of nulls.
-    var a = [42];
-    foo(a);
-  }();
-}
-
-foo(arg) {
-  Expect.isTrue(arg[0] == 42);
-}
diff --git a/tests/language_2/list/is_test.dart b/tests/language_2/list/is_test.dart
deleted file mode 100644
index 26699566137..00000000000
--- a/tests/language_2/list/is_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  bar() => <T>[];
-}
-
-main() {
-  check([], true, false, false);
-  check(<int>[], true, true, false);
-  check(<double>[], true, false, true);
-  check(new A().bar(), true, false, false);
-  check(new A<int>().bar(), true, true, false);
-  check(new A<double>().bar(), true, false, true);
-  check(new Object(), false, false, false);
-}
-
-check(val, expectList, expectListInt, expectListDouble) {
-  Expect.equals(expectList, val is List);
-  Expect.equals(expectListInt, val is List<int>);
-  Expect.equals(expectListDouble, val is List<double>);
-}
diff --git a/tests/language_2/list/length_tracer_test.dart b/tests/language_2/list/length_tracer_test.dart
deleted file mode 100644
index 6d9417a58ba..00000000000
--- a/tests/language_2/list/length_tracer_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that dart2js' optimization on list length does not fold a
-// length getter to a constant if the receiver can be null.
-
-import "package:expect/expect.dart";
-
-var a = 42;
-var b;
-
-main() {
-  Expect.throws(() => b.length);
-  b = const [42];
-}
diff --git a/tests/language_2/list/list_test.dart b/tests/language_2/list/list_test.dart
deleted file mode 100644
index 5139b72e40f..00000000000
--- a/tests/language_2/list/list_test.dart
+++ /dev/null
@@ -1,134 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing arrays.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B {}
-
-class ListTest {
-  static void TestIterator() {
-    List<int> a = new List<int>.filled(10, null);
-    int count = 0;
-
-    // Basic iteration over ObjectList.
-    for (int elem in a) {
-      Expect.equals(null, elem);
-      count++;
-    }
-    Expect.equals(10, count);
-
-    // List length is 0.
-    List<int> fa = <int>[];
-    count = 0;
-    for (int elem in fa) {
-      count++;
-    }
-    Expect.equals(0, count);
-
-    // Iterate over ImmutableList.
-    List<int> ca = const [0, 1, 2, 3, 4, 5];
-    int sum = 0;
-    for (int elem in ca) {
-      sum += elem;
-      fa.add(elem);
-    }
-    Expect.equals(15, sum);
-
-    // Iterate over List.
-    int sum2 = 0;
-    for (int elem in fa) {
-      sum2 += elem;
-    }
-    Expect.equals(sum, sum2);
-  }
-
-  static void testSublistTypeArguments() {
-    final list1 = new List<A>.filled(0, null).sublist(0);
-    Expect.isTrue(list1 is List<A>);
-    Expect.isTrue(list1 is! List<B>);
-
-    final list2 = new List<A>.filled(0, null).toList(growable: false);
-    Expect.isTrue(list2 is List<A>);
-    Expect.isTrue(list2 is! List<B>);
-  }
-
-  static void testMain() {
-    int len = 10;
-    List a = new List.filled(len, null);
-    Expect.equals(true, a is List);
-    Expect.equals(len, a.length);
-    a.forEach((element) {
-      Expect.equals(null, element);
-    });
-    a[1] = 1;
-    Expect.equals(1, a[1]);
-    Expect.throwsRangeError(() => a[len]);
-
-    Expect.throws(() {
-      List a = new List.filled(4, null);
-      a.setRange(1, 2, a, null);
-    });
-
-    Expect.throws(() {
-      List a = new List.filled(4, null);
-      a.setRange(1, 2, const [1, 2, 3, 4], null);
-    });
-
-    Expect.throwsRangeError(() {
-      List a = new List.filled(4, null);
-      a.setRange(10, 11, a, 1);
-    });
-
-    a = new List.filled(4, null);
-    List b = new List.filled(4, null);
-    b.setRange(0, 4, a, 0);
-
-    List<int> unsorted = [4, 3, 9, 12, -4, 9];
-    int compare(a, b) {
-      if (a < b) return -1;
-      if (a > b) return 1;
-      return 0;
-    }
-
-    unsorted.sort(compare);
-    Expect.equals(6, unsorted.length);
-    Expect.equals(-4, unsorted[0]);
-    Expect.equals(12, unsorted[unsorted.length - 1]);
-    int compare2(a, b) {
-      if (a < b) return 1;
-      if (a > b) return -1;
-      return 0;
-    }
-
-    unsorted.sort(compare2);
-    Expect.equals(12, unsorted[0]);
-    Expect.equals(-4, unsorted[unsorted.length - 1]);
-    Set<int> t = new Set<int>.from(unsorted);
-    Expect.equals(true, t.contains(9));
-    Expect.equals(true, t.contains(-4));
-    Expect.equals(false, t.contains(-3));
-    Expect.equals(6, unsorted.length);
-    Expect.equals(5, t.length);
-    TestIterator();
-    int element = unsorted[2];
-    Expect.equals(9, element);
-
-    Expect.throws(() => new List.filled(-1, null));
-    Expect.throws(() => new List.filled(0x7ffffffffffff000, null));
-
-    List list = [];
-    Expect.throwsRangeError(list.removeLast);
-    Expect.equals(0, list.length);
-  }
-}
-
-main() {
-  ListTest.testMain();
-  ListTest.testSublistTypeArguments();
-}
diff --git a/tests/language_2/list/literal1_runtime_test.dart b/tests/language_2/list/literal1_runtime_test.dart
deleted file mode 100644
index e6f9ab9e3f4..00000000000
--- a/tests/language_2/list/literal1_runtime_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// A type mismatch in a list literal is a compile-time error
-
-main() {
-  var m = const
-
-      [0, 1];
-}
diff --git a/tests/language_2/list/literal1_test.dart b/tests/language_2/list/literal1_test.dart
deleted file mode 100644
index a34bec137fa..00000000000
--- a/tests/language_2/list/literal1_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// A type mismatch in a list literal is a compile-time error
-
-// @dart = 2.9
-
-main() {
-  var m = const
-      <String>
-      [0, 1];
-//     ^
-// [analyzer] COMPILE_TIME_ERROR.LIST_ELEMENT_TYPE_NOT_ASSIGNABLE
-// [cfe] A value of type 'int' can't be assigned to a variable of type 'String'.
-//        ^
-// [analyzer] COMPILE_TIME_ERROR.LIST_ELEMENT_TYPE_NOT_ASSIGNABLE
-// [cfe] A value of type 'int' can't be assigned to a variable of type 'String'.
-}
diff --git a/tests/language_2/list/literal2_test.dart b/tests/language_2/list/literal2_test.dart
deleted file mode 100644
index d1c9d47acb2..00000000000
--- a/tests/language_2/list/literal2_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test program for array literals.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class ArrayLiteral2Test {
-  static const int LAUREL = 1965;
-  static const int HARDY = 1957;
-
-  static const LUCKY_DOG = const <int>[1919, 1921];
-  static const MUSIC_BOX = const [LAUREL, HARDY];
-
-  static testMain() {
-    Expect.equals(2, LUCKY_DOG.length);
-    Expect.equals(2, MUSIC_BOX.length);
-
-    Expect.equals(1919, LUCKY_DOG[0]);
-    Expect.equals(1921, LUCKY_DOG[1]);
-
-    Expect.equals(LAUREL, MUSIC_BOX[0]);
-    Expect.equals(HARDY, MUSIC_BOX[1]);
-  }
-}
-
-main() {
-  ArrayLiteral2Test.testMain();
-}
diff --git a/tests/language_2/list/literal3_test.dart b/tests/language_2/list/literal3_test.dart
deleted file mode 100644
index 248eaae8f4d..00000000000
--- a/tests/language_2/list/literal3_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check that arrays from const array literals are immutable.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class ListLiteral3Test {
-  static const List<String> canonicalJoke = const ["knock", "knock"];
-
-  static testMain() {
-    List<String> joke = const ["knock", "knock"];
-    // Elements of canonical lists are canonicalized.
-    Expect.identical(joke, canonicalJoke);
-    Expect.identical(joke[0], joke[1]);
-    Expect.identical(joke[0], canonicalJoke[0]);
-
-    // Lists from literals are immutable.
-    Expect.throwsUnsupportedError(() => joke[0] = "sock");
-    Expect.identical(joke[0], joke[1]);
-
-    // Make sure lists allocated at runtime are mutable and are
-    // not canonicalized.
-    List<String> lame_joke = ["knock", "knock"]; // Invokes operator new.
-    Expect.identical(joke[1], lame_joke[1]);
-    // Operator new creates a mutable list.
-    Expect.equals(false, identical(joke, lame_joke));
-    lame_joke[1] = "who";
-    Expect.identical("who", lame_joke[1]);
-
-    // Elements of canonical lists are canonicalized.
-    List<List<int>> a = const <List<int>>[
-      const [1, 2],
-      const [1, 2]
-    ];
-    Expect.identical(a[0], a[1]);
-    Expect.identical(a[0][0], a[1][0]);
-    Expect.throwsUnsupportedError(() => a[0][0] = 42);
-
-    List<List<double>> b = const [
-      const [1.0, 2.0],
-      const [1.0, 2.0]
-    ];
-    Expect.identical(b[0], b[1]);
-    Expect.equals(true, b[0][0] == 1.0);
-    Expect.identical(b[0][0], b[1][0]);
-    Expect.throwsUnsupportedError(() => b[0][0] = 42.0);
-  }
-}
-
-main() {
-  ListLiteral3Test.testMain();
-}
diff --git a/tests/language_2/list/literal4_test.dart b/tests/language_2/list/literal4_test.dart
deleted file mode 100644
index 95039a2cedc..00000000000
--- a/tests/language_2/list/literal4_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class ListLiteral4Test<T> {
-  void test() {
-    int result = 0;
-    {
-      var m = <String>[0, 1]; //# 00: compile-time error
-    }
-    {
-      var m = <int>[0, 1];
-      m["0"] = 1; //# 01: compile-time error
-    }
-    {
-      var m = <T>["a" as T, "b" as T]; //# 02: runtime error
-    }
-    var m = <T>[0 as T, 1 as T]; // OK.
-    {
-      var m = <T>[0 as T, 1 as T];
-      m["0"] = 1; //# 03: compile-time error
-    }
-    {
-      var m = const <int>[0, 1];
-      m["0"] = 1; //# 04: compile-time error
-    }
-    {
-      var m = <T>[0 as T, 1 as T]; // OK. Tested above.
-      List<String> ls = m; //# 05: compile-time error
-    }
-  }
-}
-
-main() {
-  var t = new ListLiteral4Test<int>();
-  t.test();
-}
diff --git a/tests/language_2/list/literal5_test.dart b/tests/language_2/list/literal5_test.dart
deleted file mode 100644
index f9b63531ed8..00000000000
--- a/tests/language_2/list/literal5_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Legacy compound literal syntax that should go away.
-
-main() {
-  new List<int>[1, 2];
-//^^^^^^^^
-// [analyzer] SYNTACTIC_ERROR.LITERAL_WITH_CLASS_AND_NEW
-// [cfe] A list literal can't be prefixed by 'new List'.
-}
diff --git a/tests/language_2/list/literal6_test.dart b/tests/language_2/list/literal6_test.dart
deleted file mode 100644
index f14b4fd8bf0..00000000000
--- a/tests/language_2/list/literal6_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Dart test program const map literals.
-
-class ListLiteral2NegativeTest<T> {
-  test() {
-    // Type parameter is not allowed with const.
-    var m = const <T>[];
-    //             ^
-    // [analyzer] COMPILE_TIME_ERROR.INVALID_TYPE_ARGUMENT_IN_CONST_LITERAL
-    // [cfe] Type variables can't be used as constants.
-  }
-}
-
-main() {
-  ListLiteral2NegativeTest<int>().test();
-}
diff --git a/tests/language_2/list/literal_syntax_test.dart b/tests/language_2/list/literal_syntax_test.dart
deleted file mode 100644
index 827a4ec68cc..00000000000
--- a/tests/language_2/list/literal_syntax_test.dart
+++ /dev/null
@@ -1,70 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class I {}
-
-void main() {
-  var list;
-  list = <
-      int
-    I //# 00: syntax error
-    , int //# 01: compile-time error
-      >[0];
-  Expect.equals(1, list.length);
-
-  list = <
-      int
-    , int //# 02: compile-time error
-    , int //# 02: continued
-      >[0];
-  Expect.equals(1, list.length);
-
-  list = <
-      int
-    , int //# 03: compile-time error
-    , int //# 03: continued
-    , int //# 03: continued
-      >[0];
-  Expect.equals(1, list.length);
-
-  list =
-    <> //# 04: syntax error
-      [0];
-  Expect.equals(1, list.length);
-
-  list =
-    <<>> //# 05: syntax error
-      [0];
-  Expect.equals(1, list.length);
-
-  list =
-    <<<>>> //# 06: syntax error
-      [0];
-  Expect.equals(1, list.length);
-
-  list =
-    <[]> //# 07: syntax error
-      [0];
-  Expect.equals(1, list.length);
-
-  list = <int>[
-    <int>[
-      <int>[1][0]
-    ][0]
-  ];
-  Expect.equals(1, list.length);
-  Expect.equals(1, list[0]);
-
-  list = <int>[
-    <List<int>>[
-      [1]
-    ][0][0]
-  ];
-  Expect.equals(1, list.length);
-  Expect.equals(1, list[0]);
-}
diff --git a/tests/language_2/list/literal_test.dart b/tests/language_2/list/literal_test.dart
deleted file mode 100644
index c877081cd1b..00000000000
--- a/tests/language_2/list/literal_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test program for array literals.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class ListLiteralTest {
-  static const LAUREL = 1;
-  static const HARDY = 2;
-
-  static testMain() {
-    var funny = <int>[
-      LAUREL,
-      HARDY,
-    ]; // Check that trailing comma works.
-    Expect.equals(2, funny.length);
-
-    List<int> m = <int>[101, 102, 100 + 3];
-    Expect.equals(3, m.length);
-    Expect.equals(101, m[0]);
-    Expect.equals(103, m[2]);
-
-    var d = m[2] - m[1];
-    Expect.equals(1, d);
-
-    dynamic e2 = [5.1, -55, 555, 5555][2];
-    Expect.equals(555, e2);
-
-    e2 = <num>[5.1, -55, 555, 5555][2];
-    Expect.equals(555, e2);
-
-    e2 = const <num>[5.1, -55, 555, 5555][2];
-    Expect.equals(555, e2);
-
-    e2 = (const [
-      5.1,
-      const <num>[-55, 555],
-      5555
-    ][1] as dynamic)[1];
-    Expect.equals(555, e2);
-
-    Expect.equals(0, [].length);
-    Expect.equals(0, <String>[].length);
-    Expect.equals(0, const <String>[].length);
-    Expect.equals(0, const [].length);
-
-    e2 = [1, 2.0, 0x03, 2.0e5];
-    Expect.equals(1, e2[0]);
-    Expect.equals(2.0, e2[1]);
-    Expect.equals(3, e2[2]);
-    Expect.equals(200000.0, e2[3]);
-  }
-}
-
-main() {
-  ListLiteralTest.testMain();
-}
diff --git a/tests/language_2/list/mixin_test.dart b/tests/language_2/list/mixin_test.dart
deleted file mode 100644
index 233cb3a820b..00000000000
--- a/tests/language_2/list/mixin_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-
-// @dart = 2.9
-import 'dart:collection';
-import 'package:expect/expect.dart';
-
-class MyList extends ListBase {
-  int get length => 4;
-  set length(int x) {}
-  int operator [](int x) => 42;
-  void operator []=(int x, val) {}
-}
-
-main() {
-  var x = new MyList();
-  int z = 0;
-  x.forEach((y) {
-    z += y;
-  });
-  Expect.equals(z, 4 * 42);
-}
diff --git a/tests/language_2/list/tracer_call_last_test.dart b/tests/language_2/list/tracer_call_last_test.dart
deleted file mode 100644
index 782aa7c5dae..00000000000
--- a/tests/language_2/list/tracer_call_last_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// dart2js used to fail this test, by inferring that `a.last()`
-// returns the element type of the `a` list.
-
-main() {
-  var a = [() => 123];
-  if (a.last() is! num) {
-    throw 'Test failed';
-  }
-}
diff --git a/tests/language_2/list/tracer_closure_test.dart b/tests/language_2/list/tracer_closure_test.dart
deleted file mode 100644
index c07ba8b5590..00000000000
--- a/tests/language_2/list/tracer_closure_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js' inferrer: if we closurize a method, we
-// still need to collect the users of the parameters for the trace
-// container pass to work.
-
-main() {
-  var a = [];
-  a.add;
-  var b = [];
-  var c = new List<dynamic>.filled(1, null);
-  b.add(c);
-  b[0][0] = 42;
-  if (c[0] is! int) {
-    throw 'Test failed';
-  }
-}
diff --git a/tests/language_2/list/tracer_in_list_test.dart b/tests/language_2/list/tracer_in_list_test.dart
deleted file mode 100644
index c8602e9e81a..00000000000
--- a/tests/language_2/list/tracer_in_list_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  var a = [[]];
-  a[0].add(42);
-  if (a[0].length != 1) {
-    throw 'Test failed';
-  }
-}
diff --git a/tests/language_2/list/tracer_in_map_test.dart b/tests/language_2/list/tracer_in_map_test.dart
deleted file mode 100644
index 45895a844a1..00000000000
--- a/tests/language_2/list/tracer_in_map_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js, whose type inferrer used to not see
-// literal maps as places where a list could escape.
-
-var b = [42];
-var a = {'foo': b};
-
-main() {
-  a['foo'].clear();
-  if (b.length != 0) throw 'Test failed';
-}
diff --git a/tests/language_2/list/tracer_return_from_tearoff_closure_test.dart b/tests/language_2/list/tracer_return_from_tearoff_closure_test.dart
deleted file mode 100644
index 7f816fd8681..00000000000
--- a/tests/language_2/list/tracer_return_from_tearoff_closure_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js's list tracer, that used to not see a
-// returned value of a method can escape to places where that method
-// is closurized and invoked.
-
-var a = [42];
-
-foo() {
-  return a;
-}
-
-main() {
-  (foo)().clear();
-  if (a.length == 1) {
-    throw 'Test failed';
-  }
-}
diff --git a/tests/language_2/loop/break_outside_loop_runtime_test.dart b/tests/language_2/loop/break_outside_loop_runtime_test.dart
deleted file mode 100644
index 778a35476e4..00000000000
--- a/tests/language_2/loop/break_outside_loop_runtime_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test check that we catch label errors.
-
-main() {
-  if (true) {
-
-  }
-}
diff --git a/tests/language_2/loop/break_outside_loop_test.dart b/tests/language_2/loop/break_outside_loop_test.dart
deleted file mode 100644
index fecee3eac58..00000000000
--- a/tests/language_2/loop/break_outside_loop_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test check that we catch label errors.
-
-// @dart = 2.9
-
-main() {
-  if (true) {
-    break;
-//  ^^^^^
-// [analyzer] SYNTACTIC_ERROR.BREAK_OUTSIDE_OF_LOOP
-// [cfe] A break statement can't be used outside of a loop or switch statement.
-  }
-}
diff --git a/tests/language_2/loop/break_test.dart b/tests/language_2/loop/break_test.dart
deleted file mode 100644
index 340b7c6edea..00000000000
--- a/tests/language_2/loop/break_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for breaks in for, do/while and while loops.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class BreakTest {
-  static testMain() {
-    int i;
-    int forCounter = 0;
-    for (i = 0; i < 10; i++) {
-      forCounter++;
-      if (i > 3) break;
-    }
-    Expect.equals(5, forCounter);
-    Expect.equals(4, i);
-
-    i = 0;
-    int doWhileCounter = 0;
-    do {
-      i++;
-      doWhileCounter++;
-      if (i > 3) break;
-    } while (i < 10);
-    Expect.equals(4, doWhileCounter);
-    Expect.equals(4, i);
-
-    i = 0;
-    int whileCounter = 0;
-    while (i < 10) {
-      i++;
-      whileCounter++;
-      if (i > 3) break;
-    }
-    Expect.equals(4, whileCounter);
-    Expect.equals(4, i);
-
-    // Use a label to break to the outer loop.
-    i = 0;
-    L:
-    while (i < 10) {
-      i++;
-      while (i > 5) {
-        break L;
-      }
-    }
-    Expect.equals(6, i);
-  }
-}
-
-main() {
-  BreakTest.testMain();
-}
diff --git a/tests/language_2/loop/continue_test.dart b/tests/language_2/loop/continue_test.dart
deleted file mode 100644
index 0d18cb7e5bc..00000000000
--- a/tests/language_2/loop/continue_test.dart
+++ /dev/null
@@ -1,78 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for continue in for, do/while and while loops.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class ContinueTest {
-  static testMain() {
-    int i;
-    int forCounter = 0;
-    for (i = 0; i < 10; i++) {
-      if (i > 3) continue;
-      forCounter++;
-    }
-    Expect.equals(4, forCounter);
-    Expect.equals(10, i);
-
-    i = 0;
-    int doWhileCounter = 0;
-    do {
-      i++;
-      if (i > 3) continue;
-      doWhileCounter++;
-    } while (i < 10);
-    Expect.equals(3, doWhileCounter);
-    Expect.equals(10, i);
-
-    i = 0;
-    int whileCounter = 0;
-    while (i < 10) {
-      i++;
-      if (i > 3) continue;
-      whileCounter++;
-    }
-    Expect.equals(3, whileCounter);
-    Expect.equals(10, i);
-
-    // Use a label to continue to the outer loop.
-    i = 0;
-    L:
-    while (i < 50) {
-      i += 3;
-      while (i < 30) {
-        i += 2;
-        if (i < 10) {
-          continue L;
-        } else {
-          i++;
-          break;
-        }
-      }
-      break;
-    }
-    Expect.equals(11, i);
-
-    // continue without label inside switch continues to innermost loop.
-    do {
-      i = 20;
-      switch (0) {
-        case 0:
-          i = 22;
-          continue;
-        default:
-          i = 25;
-          break;
-      }
-      i = 30;
-    } while (false);
-    Expect.equals(22, i);
-  }
-}
-
-main() {
-  ContinueTest.testMain();
-}
diff --git a/tests/language_2/loop/do_while2_test.dart b/tests/language_2/loop/do_while2_test.dart
deleted file mode 100644
index 1bf16343ca4..00000000000
--- a/tests/language_2/loop/do_while2_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var a = 42;
-
-foo1() {
-  var i = 0;
-  var saved;
-  do {
-    saved = i;
-    i = a;
-  } while (i == saved);
-  Expect.equals(0, saved);
-  Expect.equals(42, i);
-}
-
-foo2() {
-  var i = 0;
-  var saved;
-  do {
-    saved = i;
-    i = a;
-  } while (i != saved);
-  Expect.equals(42, saved);
-  Expect.equals(42, i);
-}
-
-foo3() {
-  var i = 0;
-  var saved;
-  do {
-    saved = i;
-    i = a;
-    if (i == saved) continue;
-  } while (i != saved);
-  Expect.equals(42, saved);
-  Expect.equals(42, i);
-}
-
-main() {
-  foo1();
-  foo2();
-  foo3();
-}
diff --git a/tests/language_2/loop/do_while3_test.dart b/tests/language_2/loop/do_while3_test.dart
deleted file mode 100644
index 1d0e2e29350..00000000000
--- a/tests/language_2/loop/do_while3_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that a condition is only evaluated once in a loop.
-
-main() {
-  int c = 0;
-  do {
-    c++;
-  } while (c++ < 2);
-  Expect.equals(4, c);
-}
diff --git a/tests/language_2/loop/do_while4_test.dart b/tests/language_2/loop/do_while4_test.dart
deleted file mode 100644
index baa46efd45e..00000000000
--- a/tests/language_2/loop/do_while4_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to crash in the presence of
-// do/while, break and a local variable declared after the break.
-
-import "package:expect/expect.dart";
-
-var a = false;
-main() {
-  do {
-    if (!a) break;
-    var c = main();
-    a = true;
-  } while (true);
-  Expect.isFalse(a);
-}
diff --git a/tests/language_2/loop/do_while_test.dart b/tests/language_2/loop/do_while_test.dart
deleted file mode 100644
index 562ec1fe6c8..00000000000
--- a/tests/language_2/loop/do_while_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing do while statement.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Helper {
-  static int f1(bool b) {
-    do return 1; while (b);
-    return 2;
-  }
-
-  static int f2(bool b) {
-    do {
-      return 1;
-    } while (b);
-    return 2;
-  }
-
-  static int f3(bool b) {
-    do ; while (b);
-    return 2;
-  }
-
-  static int f4(bool b) {
-    do {} while (b);
-    return 2;
-  }
-
-  static int f5(int n) {
-    int i = 0;
-    do {
-      i++;
-    } while (i < n);
-    return i;
-  }
-}
-
-class DoWhileTest {
-  static testMain() {
-    Expect.equals(1, Helper.f1(true));
-    Expect.equals(1, Helper.f1(false));
-    Expect.equals(1, Helper.f2(true));
-    Expect.equals(1, Helper.f2(false));
-    Expect.equals(2, Helper.f3(false));
-    Expect.equals(2, Helper.f4(false));
-    Expect.equals(1, Helper.f5(-2));
-    Expect.equals(1, Helper.f5(-1));
-    Expect.equals(1, Helper.f5(0));
-    Expect.equals(1, Helper.f5(1));
-    Expect.equals(2, Helper.f5(2));
-    Expect.equals(3, Helper.f5(3));
-  }
-}
-
-main() {
-  DoWhileTest.testMain();
-}
diff --git a/tests/language_2/loop/exchange2_test.dart b/tests/language_2/loop/exchange2_test.dart
deleted file mode 100644
index 2f6491c334a..00000000000
--- a/tests/language_2/loop/exchange2_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// This program tripped dart2js.
-main() {
-  var a = 1;
-  var b = 2;
-  var c = 3;
-  var d = 4;
-  var e = 5;
-  for (int i = 0; i < 2; i++) {
-    if (i == 1) {
-      Expect.equals(4, e);
-      Expect.equals(3, d);
-      Expect.equals(8, c);
-      Expect.equals(1, b);
-      Expect.equals(32, a);
-    }
-    int f;
-    int k;
-    if (i < 20) {
-      f = b & c | ~b & d;
-      k = 0x5A827999;
-    } else if (i < 40) {
-      f = b ^ c ^ d;
-      k = 0x6ED9EBA1;
-    } else if (i < 60) {
-      f = b & c | b & d | c & d;
-      k = 0x8F1BBCDC;
-    } else {
-      f = b ^ c ^ d;
-      k = 0xCA62C1D6;
-    }
-
-    int temp = a << 5;
-    e = d;
-    d = c;
-    c = b << 2;
-    b = a;
-    a = temp;
-  }
-}
diff --git a/tests/language_2/loop/exchange3_test.dart b/tests/language_2/loop/exchange3_test.dart
deleted file mode 100644
index 3d62359913b..00000000000
--- a/tests/language_2/loop/exchange3_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// This program tripped dart2js.
-main() {
-  int foo;
-  for (var i = 0; i < 10; foo = i, i++) {
-    if (i > 0) {
-      Expect.equals(i - 1, foo);
-    }
-  }
-}
diff --git a/tests/language_2/loop/exchange4_test.dart b/tests/language_2/loop/exchange4_test.dart
deleted file mode 100644
index 920fb1273aa..00000000000
--- a/tests/language_2/loop/exchange4_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// This program tripped dart2js.
-main() {
-  var count = 0;
-  for (var i = 0; i < 1; i++, count += i) {}
-
-  int foo;
-  for (var i = 0; i < 10; foo = i, i++) {
-    if (i > 0) {
-      Expect.equals(i - 1, foo);
-    }
-  }
-}
diff --git a/tests/language_2/loop/exchange_loop_exchange_test.dart b/tests/language_2/loop/exchange_loop_exchange_test.dart
deleted file mode 100644
index 1043d954693..00000000000
--- a/tests/language_2/loop/exchange_loop_exchange_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// This program tripped dart2js.
-main() {
-  var x = 1;
-  var y = 2;
-  for (int i = 0; i < 2; i++) {
-    if (i == 1) Expect.equals(2, x);
-    var tmp = x;
-    x = y;
-    y = tmp;
-  }
-}
diff --git a/tests/language_2/loop/exhaustive_for_test.dart b/tests/language_2/loop/exhaustive_for_test.dart
deleted file mode 100644
index 153f268710f..00000000000
--- a/tests/language_2/loop/exhaustive_for_test.dart
+++ /dev/null
@@ -1,810 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing for statement.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test several variations of for loops:
-//   * With or without an initializer.
-//   * With or without a test.
-//   * With or without an update.
-//   * With or without a continue.
-//   * With or without a fall through exit from the body.
-//   * With or without a break.
-
-// Note that some possibilities are infinite loops and so not tested.
-// Combinations that do not have a break or a test but do have a
-// fall through from the body or a continue will never exit the loop.
-
-// Each loop test function sets a status containing a bit for each part of
-// the loop that is present, and then clears the bit as that part of the
-// loop is executed.  The test expectation should be 0 (all present parts
-// were executed), except for a few cases where an update expression is
-// unreachable due to a break or return in the loop body.
-
-const int INIT = 1;
-const int TEST = 2;
-const int UPDATE = 4;
-const int CONTINUE = 8;
-const int FALL = 16;
-const int BREAK = 32;
-
-var status;
-
-void loop0() {
-  status = 0;
-  for (;;) {
-    return;
-  }
-}
-
-void loop1() {
-  status = INIT;
-  for (status &= ~INIT;;) {
-    return;
-  }
-}
-
-void loop2() {
-  status = TEST;
-  for (; (status &= ~TEST) != 0;) {
-    return;
-  }
-}
-
-void loop3() {
-  status = INIT | TEST;
-  for (status &= ~INIT; (status &= ~TEST) != 0;) {
-    return;
-  }
-}
-
-void loop4() {
-  status = UPDATE;
-  for (;; status &= ~UPDATE) {
-    return;
-  }
-}
-
-void loop5() {
-  status = INIT | UPDATE;
-  for (status &= ~INIT;; status &= ~UPDATE) {
-    return;
-  }
-}
-
-void loop6() {
-  status = TEST | UPDATE;
-  for (; (status &= ~TEST) != 0; status &= ~UPDATE) {
-    return;
-  }
-}
-
-void loop7() {
-  status = INIT | TEST | UPDATE;
-  for (status &= ~INIT; (status &= ~TEST) != 0; status &= ~UPDATE) {
-    return;
-  }
-}
-
-// Infinite loop not tested.
-void loop8() {
-  status = CONTINUE;
-  for (;;) {
-    status &= ~CONTINUE;
-    continue;
-  }
-}
-
-// Infinite loop not tested.
-void loop9() {
-  status = INIT | CONTINUE;
-  for (status &= ~INIT;;) {
-    status &= ~CONTINUE;
-    continue;
-  }
-}
-
-void loop10() {
-  status = TEST | CONTINUE;
-  for (; (status &= ~TEST) != 0;) {
-    status &= ~CONTINUE;
-    continue;
-  }
-}
-
-void loop11() {
-  status = INIT | TEST | CONTINUE;
-  for (status &= ~INIT; (status &= ~TEST) != 0;) {
-    status &= ~CONTINUE;
-    continue;
-  }
-}
-
-// Infinite loop.
-void loop12() {
-  status = UPDATE | CONTINUE;
-  for (;; status &= ~UPDATE) {
-    status &= ~CONTINUE;
-    continue;
-  }
-}
-
-// Infinite loop.
-void loop13() {
-  status = INIT | UPDATE | CONTINUE;
-  for (status &= ~INIT;; status &= ~UPDATE) {
-    status &= ~CONTINUE;
-    continue;
-  }
-}
-
-void loop14() {
-  status = TEST | UPDATE | CONTINUE;
-  for (; (status &= ~TEST) != 0; status &= ~UPDATE) {
-    status &= ~CONTINUE;
-    continue;
-  }
-}
-
-void loop15() {
-  status = INIT | TEST | UPDATE | CONTINUE;
-  for (status &= ~INIT; (status &= ~TEST) != 0; status &= ~UPDATE) {
-    status &= ~CONTINUE;
-    continue;
-  }
-}
-
-// Infinite loop.
-void loop16() {
-  status = FALL;
-  for (;;) {
-    status &= ~FALL;
-  }
-}
-
-// Infinite loop.
-void loop17() {
-  status = INIT | FALL;
-  for (status &= ~INIT;;) {
-    status &= ~FALL;
-  }
-}
-
-void loop18() {
-  status = TEST | FALL;
-  for (; (status &= ~TEST) != 0;) {
-    status &= ~FALL;
-  }
-}
-
-void loop19() {
-  status = INIT | TEST | FALL;
-  for (status &= ~INIT; (status &= ~TEST) != 0;) {
-    status &= ~FALL;
-  }
-}
-
-// Infinite loop.
-void loop20() {
-  status = UPDATE | FALL;
-  for (;; status &= ~UPDATE) {
-    status &= ~FALL;
-  }
-}
-
-// Infinite loop.
-void loop21() {
-  status = INIT | UPDATE | FALL;
-  for (status &= ~INIT;; status &= ~UPDATE) {
-    status &= ~FALL;
-  }
-}
-
-void loop22() {
-  status = TEST | UPDATE | FALL;
-  for (; (status &= ~TEST) != 0; status &= ~UPDATE) {
-    status &= ~FALL;
-  }
-}
-
-void loop23() {
-  status = INIT | TEST | UPDATE | FALL;
-  for (status &= ~INIT; (status &= ~TEST) != 0; status &= ~UPDATE) {
-    status &= ~FALL;
-  }
-}
-
-// Infinite loop.
-void loop24() {
-  status = CONTINUE | FALL;
-  for (;;) {
-    if ((status & CONTINUE) == CONTINUE) {
-      status &= ~CONTINUE;
-      continue;
-    }
-    status &= ~FALL;
-  }
-}
-
-// Infinite loop.
-void loop25() {
-  status = INIT | CONTINUE | FALL;
-  for (status &= ~INIT;;) {
-    if ((status & CONTINUE) == CONTINUE) {
-      status &= ~CONTINUE;
-      continue;
-    }
-    status &= ~FALL;
-  }
-}
-
-void loop26() {
-  status = TEST | CONTINUE | FALL;
-  for (; (status &= ~TEST) != 0;) {
-    if ((status & CONTINUE) == CONTINUE) {
-      status &= ~CONTINUE;
-      continue;
-    }
-    status &= ~FALL;
-  }
-}
-
-void loop27() {
-  status = INIT | TEST | CONTINUE | FALL;
-  for (status &= ~INIT; (status &= ~TEST) != 0;) {
-    if ((status & CONTINUE) == CONTINUE) {
-      status &= ~CONTINUE;
-      continue;
-    }
-    status &= ~FALL;
-  }
-}
-
-// Infinite loop.
-void loop28() {
-  status = UPDATE | CONTINUE | FALL;
-  for (;; status &= ~UPDATE) {
-    if ((status & CONTINUE) == CONTINUE) {
-      status &= ~CONTINUE;
-      continue;
-    }
-    status &= ~FALL;
-  }
-}
-
-// Infinite loop.
-void loop29() {
-  status = INIT | UPDATE | CONTINUE | FALL;
-  for (status &= ~INIT;; status &= ~UPDATE) {
-    if ((status & CONTINUE) == CONTINUE) {
-      status &= ~CONTINUE;
-      continue;
-    }
-    status &= ~FALL;
-  }
-}
-
-void loop30() {
-  status = TEST | UPDATE | CONTINUE | FALL;
-  for (; (status &= ~TEST) != 0; status &= ~UPDATE) {
-    if ((status & CONTINUE) == CONTINUE) {
-      status &= ~CONTINUE;
-      continue;
-    }
-    status &= ~FALL;
-  }
-}
-
-void loop31() {
-  status = INIT | TEST | UPDATE | CONTINUE | FALL;
-  for (status &= ~INIT; (status &= ~TEST) != 0; status &= ~UPDATE) {
-    if ((status & CONTINUE) == CONTINUE) {
-      status &= ~CONTINUE;
-      continue;
-    }
-    status &= ~FALL;
-  }
-}
-
-void loop32() {
-  status = BREAK;
-  for (;;) {
-    status &= ~BREAK;
-    break;
-  }
-}
-
-void loop33() {
-  status = INIT | BREAK;
-  for (status &= ~INIT;;) {
-    status &= ~BREAK;
-    break;
-  }
-}
-
-void loop34() {
-  status = TEST | BREAK;
-  for (; (status &= ~TEST) != 0;) {
-    status &= ~BREAK;
-    break;
-  }
-}
-
-void loop35() {
-  status = INIT | TEST | BREAK;
-  for (status &= ~INIT; (status &= ~TEST) != 0;) {
-    status &= ~BREAK;
-    break;
-  }
-}
-
-void loop36() {
-  status = UPDATE | BREAK;
-  for (;; status &= ~UPDATE) {
-    status &= ~BREAK;
-    break;
-  }
-}
-
-void loop37() {
-  status = INIT | UPDATE | BREAK;
-  for (status &= ~INIT;; status &= ~UPDATE) {
-    status &= ~BREAK;
-    break;
-  }
-}
-
-void loop38() {
-  status = TEST | UPDATE | BREAK;
-  for (; (status &= ~TEST) != 0; status &= ~UPDATE) {
-    status &= ~BREAK;
-    break;
-  }
-}
-
-void loop39() {
-  status = INIT | TEST | UPDATE | BREAK;
-  for (status &= ~INIT; (status &= ~TEST) != 0; status &= ~UPDATE) {
-    status &= ~BREAK;
-    break;
-  }
-}
-
-void loop40() {
-  status = CONTINUE | BREAK;
-  for (;;) {
-    if ((status & CONTINUE) == CONTINUE) {
-      status &= ~CONTINUE;
-      continue;
-    }
-    status &= ~BREAK;
-    break;
-  }
-}
-
-void loop41() {
-  status = INIT | CONTINUE | BREAK;
-  for (status &= ~INIT;;) {
-    if ((status & CONTINUE) == CONTINUE) {
-      status &= ~CONTINUE;
-      continue;
-    }
-    status &= ~BREAK;
-    break;
-  }
-}
-
-void loop42() {
-  status = TEST | CONTINUE | BREAK;
-  for (; (status &= ~TEST) != 0;) {
-    if ((status & CONTINUE) == CONTINUE) {
-      status &= ~CONTINUE;
-      continue;
-    }
-    status &= ~BREAK;
-    break;
-  }
-}
-
-void loop43() {
-  status = INIT | TEST | CONTINUE | BREAK;
-  for (status &= ~INIT; (status &= ~TEST) != 0;) {
-    if ((status & CONTINUE) == CONTINUE) {
-      status &= ~CONTINUE;
-      continue;
-    }
-    status &= ~BREAK;
-    break;
-  }
-}
-
-void loop44() {
-  status = UPDATE | CONTINUE | BREAK;
-  for (;; status &= ~UPDATE) {
-    if ((status & CONTINUE) == CONTINUE) {
-      status &= ~CONTINUE;
-      continue;
-    }
-    status &= ~BREAK;
-    break;
-  }
-}
-
-void loop45() {
-  status = INIT | UPDATE | CONTINUE | BREAK;
-  for (status &= ~INIT;; status &= ~UPDATE) {
-    if ((status & CONTINUE) == CONTINUE) {
-      status &= ~CONTINUE;
-      continue;
-    }
-    status &= ~BREAK;
-    break;
-  }
-}
-
-void loop46() {
-  status = TEST | UPDATE | CONTINUE | BREAK;
-  for (; (status &= ~TEST) != 0; status &= ~UPDATE) {
-    if ((status & CONTINUE) == CONTINUE) {
-      status &= ~CONTINUE;
-      continue;
-    }
-    status &= ~BREAK;
-    break;
-  }
-}
-
-void loop47() {
-  status = INIT | TEST | UPDATE | CONTINUE | BREAK;
-  for (status &= ~INIT; (status &= ~TEST) != 0; status &= ~UPDATE) {
-    if ((status & CONTINUE) == CONTINUE) {
-      status &= ~CONTINUE;
-      continue;
-    }
-    status &= ~BREAK;
-    break;
-  }
-}
-
-void loop48() {
-  status = FALL | BREAK;
-  for (;;) {
-    if ((status & FALL) == FALL) {
-      status &= ~FALL;
-    } else {
-      status &= ~BREAK;
-      break;
-    }
-  }
-}
-
-void loop49() {
-  status = INIT | FALL | BREAK;
-  for (status &= ~INIT;;) {
-    if ((status & FALL) == FALL) {
-      status &= ~FALL;
-    } else {
-      status &= ~BREAK;
-      break;
-    }
-  }
-}
-
-void loop50() {
-  status = TEST | FALL | BREAK;
-  for (; (status &= ~TEST) != 0;) {
-    if ((status & FALL) == FALL) {
-      status &= ~FALL;
-    } else {
-      status &= ~BREAK;
-      break;
-    }
-  }
-}
-
-void loop51() {
-  status = INIT | TEST | FALL | BREAK;
-  for (status &= ~INIT; (status &= ~TEST) != 0;) {
-    if ((status & FALL) == FALL) {
-      status &= ~FALL;
-    } else {
-      status &= ~BREAK;
-      break;
-    }
-  }
-}
-
-void loop52() {
-  status = UPDATE | FALL | BREAK;
-  for (;; status &= ~UPDATE) {
-    if ((status & FALL) == FALL) {
-      status &= ~FALL;
-    } else {
-      status &= ~BREAK;
-      break;
-    }
-  }
-}
-
-void loop53() {
-  status = INIT | UPDATE | FALL | BREAK;
-  for (status &= ~INIT;; status &= ~UPDATE) {
-    if ((status & FALL) == FALL) {
-      status &= ~FALL;
-    } else {
-      status &= ~BREAK;
-      break;
-    }
-  }
-}
-
-void loop54() {
-  status = TEST | UPDATE | FALL | BREAK;
-  for (; (status &= ~TEST) != 0; status &= ~UPDATE) {
-    if ((status & FALL) == FALL) {
-      status &= ~FALL;
-    } else {
-      status &= ~BREAK;
-      break;
-    }
-  }
-}
-
-void loop55() {
-  status = INIT | TEST | UPDATE | FALL | BREAK;
-  for (status &= ~INIT; (status &= ~TEST) != 0; status &= ~UPDATE) {
-    if ((status & FALL) == FALL) {
-      status &= ~FALL;
-    } else {
-      status &= ~BREAK;
-      break;
-    }
-  }
-}
-
-void loop56() {
-  status = CONTINUE | FALL | BREAK;
-  for (;;) {
-    if ((status & CONTINUE) == CONTINUE) {
-      status &= ~CONTINUE;
-      continue;
-    }
-    if ((status & FALL) == FALL) {
-      status &= ~FALL;
-    } else {
-      status &= ~BREAK;
-      break;
-    }
-  }
-}
-
-void loop57() {
-  status = INIT | CONTINUE | FALL | BREAK;
-  for (status &= ~INIT;;) {
-    if ((status & CONTINUE) == CONTINUE) {
-      status &= ~CONTINUE;
-      continue;
-    }
-    if ((status & FALL) == FALL) {
-      status &= ~FALL;
-    } else {
-      status &= ~BREAK;
-      break;
-    }
-  }
-}
-
-void loop58() {
-  status = TEST | CONTINUE | FALL | BREAK;
-  for (; (status &= ~TEST) != 0;) {
-    if ((status & CONTINUE) == CONTINUE) {
-      status &= ~CONTINUE;
-      continue;
-    }
-    if ((status & FALL) == FALL) {
-      status &= ~FALL;
-    } else {
-      status &= ~BREAK;
-      break;
-    }
-  }
-}
-
-void loop59() {
-  status = INIT | TEST | CONTINUE | FALL | BREAK;
-  for (status &= ~INIT; (status &= ~TEST) != 0;) {
-    if ((status & CONTINUE) == CONTINUE) {
-      status &= ~CONTINUE;
-      continue;
-    }
-    if ((status & FALL) == FALL) {
-      status &= ~FALL;
-    } else {
-      status &= ~BREAK;
-      break;
-    }
-  }
-}
-
-void loop60() {
-  status = UPDATE | CONTINUE | FALL | BREAK;
-  for (;; status &= ~UPDATE) {
-    if ((status & CONTINUE) == CONTINUE) {
-      status &= ~CONTINUE;
-      continue;
-    }
-    if ((status & FALL) == FALL) {
-      status &= ~FALL;
-    } else {
-      status &= ~BREAK;
-      break;
-    }
-  }
-}
-
-void loop61() {
-  status = INIT | UPDATE | CONTINUE | FALL | BREAK;
-  for (status &= ~INIT;; status &= ~UPDATE) {
-    if ((status & CONTINUE) == CONTINUE) {
-      status &= ~CONTINUE;
-      continue;
-    }
-    if ((status & FALL) == FALL) {
-      status &= ~FALL;
-    } else {
-      status &= ~BREAK;
-      break;
-    }
-  }
-}
-
-void loop62() {
-  status = TEST | UPDATE | CONTINUE | FALL | BREAK;
-  for (; (status &= ~TEST) != 0; status &= ~UPDATE) {
-    if ((status & CONTINUE) == CONTINUE) {
-      status &= ~CONTINUE;
-      continue;
-    }
-    if ((status & FALL) == FALL) {
-      status &= ~FALL;
-    } else {
-      status &= ~BREAK;
-      break;
-    }
-  }
-}
-
-void loop63() {
-  status = INIT | TEST | UPDATE | CONTINUE | FALL | BREAK;
-  for (status &= ~INIT; (status &= ~TEST) != 0; status &= ~UPDATE) {
-    if ((status & CONTINUE) == CONTINUE) {
-      status &= ~CONTINUE;
-      continue;
-    }
-    if ((status & FALL) == FALL) {
-      status &= ~FALL;
-    } else {
-      status &= ~BREAK;
-      break;
-    }
-  }
-}
-
-void main() {
-  loop0();
-  Expect.equals(0, status);
-  loop1();
-  Expect.equals(0, status);
-  loop2();
-  Expect.equals(0, status);
-  loop3();
-  Expect.equals(0, status);
-
-  // The next four tests return with status UPDATE because they return
-  // before the update expression is reached.
-  loop4();
-  Expect.equals(UPDATE, status);
-  loop5();
-  Expect.equals(UPDATE, status);
-  loop6();
-  Expect.equals(UPDATE, status);
-  loop7();
-  Expect.equals(UPDATE, status);
-
-  loop10();
-  Expect.equals(0, status);
-  loop11();
-  Expect.equals(0, status);
-  loop14();
-  Expect.equals(0, status);
-  loop15();
-  Expect.equals(0, status);
-  loop18();
-  Expect.equals(0, status);
-  loop19();
-  Expect.equals(0, status);
-  loop22();
-  Expect.equals(0, status);
-  loop23();
-  Expect.equals(0, status);
-  loop26();
-  Expect.equals(0, status);
-  loop27();
-  Expect.equals(0, status);
-  loop30();
-  Expect.equals(0, status);
-  loop31();
-  Expect.equals(0, status);
-  loop32();
-  Expect.equals(0, status);
-  loop33();
-  Expect.equals(0, status);
-  loop34();
-  Expect.equals(0, status);
-  loop35();
-  Expect.equals(0, status);
-
-  // The next four tests return with status UPDATE because they break from
-  // the loop before the update expression is reached.
-  loop36();
-  Expect.equals(4, status);
-  loop37();
-  Expect.equals(4, status);
-  loop38();
-  Expect.equals(4, status);
-  loop39();
-  Expect.equals(4, status);
-
-  loop40();
-  Expect.equals(0, status);
-  loop41();
-  Expect.equals(0, status);
-  loop42();
-  Expect.equals(0, status);
-  loop43();
-  Expect.equals(0, status);
-  loop44();
-  Expect.equals(0, status);
-  loop45();
-  Expect.equals(0, status);
-  loop46();
-  Expect.equals(0, status);
-  loop47();
-  Expect.equals(0, status);
-  loop48();
-  Expect.equals(0, status);
-  loop49();
-  Expect.equals(0, status);
-  loop50();
-  Expect.equals(0, status);
-  loop51();
-  Expect.equals(0, status);
-  loop52();
-  Expect.equals(0, status);
-  loop53();
-  Expect.equals(0, status);
-  loop54();
-  Expect.equals(0, status);
-  loop55();
-  Expect.equals(0, status);
-  loop56();
-  Expect.equals(0, status);
-  loop57();
-  Expect.equals(0, status);
-  loop58();
-  Expect.equals(0, status);
-  loop59();
-  Expect.equals(0, status);
-  loop60();
-  Expect.equals(0, status);
-  loop61();
-  Expect.equals(0, status);
-  loop62();
-  Expect.equals(0, status);
-  loop63();
-  Expect.equals(0, status);
-}
diff --git a/tests/language_2/loop/for2_test.dart b/tests/language_2/loop/for2_test.dart
deleted file mode 100644
index c91b189c9cd..00000000000
--- a/tests/language_2/loop/for2_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing for statement which captures loop variable.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var f;
-
-main() {
-  // Capture the loop variable, ensure we capture the right value.
-  for (int i = 0; i < 10; i++) {
-    if (i == 7) {
-      f = () => "i = $i";
-    }
-  }
-  Expect.equals("i = 7", f());
-
-  // There is only one instance of k. The captured variable continues
-  // to change.
-  int k;
-  for (k = 0; k < 10; k++) {
-    if (k == 7) {
-      f = () => "k = $k";
-    }
-  }
-  Expect.equals("k = 10", f());
-
-  // l gets modified after it's captured. n++ is executed on the
-  // newly introduced instance of n (i.e. the instance of the loop
-  // iteration after the value is captured).
-  for (int n = 0; n < 10; n++) {
-    var l = n;
-    if (l == 7) {
-      f = () => "l = $l, n = $n";
-    }
-    l++;
-  }
-  Expect.equals("l = 8, n = 7", f());
-
-  // Loop variable is incremented in loop body instead of the increment.
-  // expression. Thus, the captured value is incremented by one before
-  // a new loop variable instance is created.
-  for (int i = 0; i < 10; /*nothing*/) {
-    if (i == 7) {
-      f = () => "i = $i";
-    }
-    i++;
-  }
-  Expect.equals("i = 8", f());
-
-  // Make sure continue still ensures the loop variable is captured correctly.
-  for (int i = 0; i < 10; i++) {
-    if (i == 7) {
-      f = () => "i = $i";
-    }
-    continue;
-    i++;
-  }
-  Expect.equals("i = 7", f());
-
-  // Nested loops with captured variables.
-  for (int k = 0; k < 5; k++) {
-    for (int i = 0; i < 10; i++) {
-      if (k == 3 && i == 7) {
-        f = () => "k = $k, i = $i";
-      }
-    }
-  }
-  Expect.equals("k = 3, i = 7", f());
-}
diff --git a/tests/language_2/loop/for_in2_test.dart b/tests/language_2/loop/for_in2_test.dart
deleted file mode 100644
index 4dcae09f555..00000000000
--- a/tests/language_2/loop/for_in2_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that using a field or a global variable for a for/in variable
-// works.
-
-import "package:expect/expect.dart";
-
-Set<int> set = new Set.from([1, 2]);
-var x;
-
-class A {
-  var field;
-  test() {
-    int count = 0;
-    for (field in set) {
-      count += field;
-    }
-    Expect.equals(3, count);
-
-    count = 0;
-    for (x in set) {
-      count += x;
-    }
-    Expect.equals(3, count);
-  }
-}
-
-void main() {
-  new A().test();
-}
diff --git a/tests/language_2/loop/for_in3_test.dart b/tests/language_2/loop/for_in3_test.dart
deleted file mode 100644
index f64bcc06aa4..00000000000
--- a/tests/language_2/loop/for_in3_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test for testing that strings aren't iterable.
-
-main() {
-  var chars = [];
-  for (var c in "foo") chars.add(c);
-  //            ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.FOR_IN_OF_INVALID_TYPE
-  // [cfe] The type 'String' used in the 'for' loop must implement 'Iterable<dynamic>'.
-}
diff --git a/tests/language_2/loop/for_in_side_effects_test.dart b/tests/language_2/loop/for_in_side_effects_test.dart
deleted file mode 100644
index 747d1575c8d..00000000000
--- a/tests/language_2/loop/for_in_side_effects_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to not see side effects of
-// iterator calls made in a "for in".
-
-import "package:expect/expect.dart";
-
-var global = 42;
-var array = [new A()];
-
-class A extends Iterable<A> {
-  Iterator<A> get iterator {
-    global = 54;
-    return [this].iterator;
-  }
-
-  moveNext() => false;
-
-  bar(a) {
-    for (var a in this) {}
-  }
-}
-
-main() {
-  array[0].bar(global);
-  Expect.equals(54, global);
-}
diff --git a/tests/language_2/loop/for_in_test.dart b/tests/language_2/loop/for_in_test.dart
deleted file mode 100644
index 370e18218b5..00000000000
--- a/tests/language_2/loop/for_in_test.dart
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test for testing for in on a list literal.
-
-main() {
-  testSimple();
-  testGenericSyntax1();
-  testGenericSyntax2();
-  testGenericSyntax3();
-  testGenericSyntax4();
-  testShadowLocal1();
-  testShadowLocal2();
-}
-
-void testSimple() {
-  var list = [1, 3, 5];
-  var sum = 0;
-  for (var i in list) {
-    sum += i;
-  }
-  Expect.equals(9, sum);
-}
-
-void testGenericSyntax1() {
-  List<List<String>> aCollection = [];
-  for (List<String> strArrArr in aCollection) {}
-}
-
-void testGenericSyntax2() {
-  List<List<String>> aCollection = [];
-  List<String> strArrArr;
-  for (strArrArr in aCollection) {}
-}
-
-void testGenericSyntax3() {
-  List<List<List<String>>> aCollection = [];
-  for (List<List<String>> strArrArr in aCollection) {}
-}
-
-void testGenericSyntax4() {
-  List<List<List<String>>> aCollection = [];
-  List<List<String>> strArrArr;
-  for (strArrArr in aCollection) {}
-}
-
-void testShadowLocal1() {
-  List<int> x = [1, 2, 3];
-  var i = 0;
-  for (var x in x) {
-    Expect.equals(x, ++i);
-  }
-}
-
-void testShadowLocal2() {
-  Object x = [1, 2, 3];
-  var i = 0;
-  for (x in x) {
-    Expect.equals(x, ++i);
-  }
-}
diff --git a/tests/language_2/loop/for_inlining_test.dart b/tests/language_2/loop/for_inlining_test.dart
deleted file mode 100644
index 30955618294..00000000000
--- a/tests/language_2/loop/for_inlining_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to emit an invalid JS
-// variable declaration initializer in a for initializer.
-
-import "package:expect/expect.dart";
-
-var global;
-
-inlineMe() {
-  global = 42;
-  return 54;
-}
-
-main() {
-  for (var t = inlineMe(); t < 42; t++) {}
-  Expect.equals(42, global);
-}
diff --git a/tests/language_2/loop/for_runtime_test.dart b/tests/language_2/loop/for_runtime_test.dart
deleted file mode 100644
index 7ae24f2144e..00000000000
--- a/tests/language_2/loop/for_runtime_test.dart
+++ /dev/null
@@ -1,95 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing for statement.
-
-import "package:expect/expect.dart";
-
-class Helper {
-  static int f1() {
-    for (;;) return 1;
-  }
-
-  static int f2(var n) {
-    int i = 0;
-    for (; i < n; i++);
-    return i;
-  }
-
-  static int f3(int n) {
-    int i = 0;
-    for (int j = 0; j < n; j++) i = i + j + 1;
-    return i;
-  }
-
-  static int f4(n) {
-    int i = 0;
-    for (bool stop = false; (i < n) && !stop; i++) {
-      if (i >= 5) {
-        stop = true;
-      }
-    }
-    return i;
-  }
-
-  static var status;
-  static void f5() {
-    status = 0;
-    for (var stop = false;;) {
-      if (stop) {
-        break;
-      } else {
-        stop = true;
-        continue;
-      }
-    }
-    status = 1;
-  }
-
-  static int f6() {
-    // Verify that side effects in the condition are visible after the loop.
-    int i = 0;
-    for (; ++i < 3;) {}
-    return i;
-  }
-}
-
-class ForTest {
-  static testMain() {
-    Expect.equals(1, Helper.f1());
-    Expect.equals(0, Helper.f2(-1));
-    Expect.equals(0, Helper.f2(0));
-    Expect.equals(10, Helper.f2(10));
-    Expect.equals(0, Helper.f3(-1));
-    Expect.equals(0, Helper.f3(0));
-    Expect.equals(1, Helper.f3(1));
-    Expect.equals(3, Helper.f3(2));
-    Expect.equals(6, Helper.f3(3));
-    Expect.equals(10, Helper.f3(4));
-    Expect.equals(0, Helper.f4(-1));
-    Expect.equals(0, Helper.f4(0));
-    Expect.equals(1, Helper.f4(1));
-    Expect.equals(6, Helper.f4(6));
-    Expect.equals(6, Helper.f4(10));
-
-    Helper.f5();
-    Expect.equals(1, Helper.status);
-
-    Expect.equals(3, Helper.f6());
-  }
-}
-
-main() {
-  ForTest.testMain();
-  testShadowLocal();
-}
-
-void testShadowLocal() {
-  List<int> x = [1, 2, 3];
-
-}
diff --git a/tests/language_2/loop/for_test.dart b/tests/language_2/loop/for_test.dart
deleted file mode 100644
index 8e494c8d010..00000000000
--- a/tests/language_2/loop/for_test.dart
+++ /dev/null
@@ -1,94 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing for statement.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Helper {
-  static int f1() {
-    for (;;) return 1;
-  }
-
-  static int f2(var n) {
-    int i = 0;
-    for (; i < n; i++);
-    return i;
-  }
-
-  static int f3(int n) {
-    int i = 0;
-    for (int j = 0; j < n; j++) i = i + j + 1;
-    return i;
-  }
-
-  static int f4(n) {
-    int i = 0;
-    for (bool stop = false; (i < n) && !stop; i++) {
-      if (i >= 5) {
-        stop = true;
-      }
-    }
-    return i;
-  }
-
-  static var status;
-  static void f5() {
-    status = 0;
-    for (var stop = false;;) {
-      if (stop) {
-        break;
-      } else {
-        stop = true;
-        continue;
-      }
-    }
-    status = 1;
-  }
-
-  static int f6() {
-    // Verify that side effects in the condition are visible after the loop.
-    int i = 0;
-    for (; ++i < 3;) {}
-    return i;
-  }
-}
-
-class ForTest {
-  static testMain() {
-    Expect.equals(1, Helper.f1());
-    Expect.equals(0, Helper.f2(-1));
-    Expect.equals(0, Helper.f2(0));
-    Expect.equals(10, Helper.f2(10));
-    Expect.equals(0, Helper.f3(-1));
-    Expect.equals(0, Helper.f3(0));
-    Expect.equals(1, Helper.f3(1));
-    Expect.equals(3, Helper.f3(2));
-    Expect.equals(6, Helper.f3(3));
-    Expect.equals(10, Helper.f3(4));
-    Expect.equals(0, Helper.f4(-1));
-    Expect.equals(0, Helper.f4(0));
-    Expect.equals(1, Helper.f4(1));
-    Expect.equals(6, Helper.f4(6));
-    Expect.equals(6, Helper.f4(10));
-
-    Helper.f5();
-    Expect.equals(1, Helper.status);
-
-    Expect.equals(3, Helper.f6());
-  }
-}
-
-main() {
-  ForTest.testMain();
-  testShadowLocal();
-}
-
-void testShadowLocal() {
-  List<int> x = [1, 2, 3];
-  for (var x = x;;) break;
-  //           ^
-  // [cfe] Local variable 'x' can't be referenced before it is declared.
-}
diff --git a/tests/language_2/loop/for_variable_capture_test.dart b/tests/language_2/loop/for_variable_capture_test.dart
deleted file mode 100644
index 098f97c7d9c..00000000000
--- a/tests/language_2/loop/for_variable_capture_test.dart
+++ /dev/null
@@ -1,304 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-run(callback) => callback();
-
-initializer() {
-  var closure;
-  for (var i = 0, fn = () => i; i < 3; i++) {
-    i += 1;
-    closure = fn;
-  }
-  Expect.equals(1, closure());
-}
-
-condition() {
-  var closures = [];
-  check(callback) {
-    closures.add(callback);
-    return callback();
-  }
-
-  var values = [];
-  for (var i = 0; check(() => ++i) < 8; ++i) {
-    values.add(i);
-  }
-  Expect.listEquals([1, 3, 5, 7], values);
-  Expect.listEquals([2, 4, 6, 8, 10], closures.map(run).toList());
-}
-
-body() {
-  var closures = [];
-  for (var i = 0, j = 0; i < 3; i++) {
-    j++;
-    closures.add(() => i);
-    closures.add(() => j);
-  }
-  Expect.listEquals([0, 1, 1, 2, 2, 3], closures.map(run).toList());
-}
-
-update() {
-  var closures = [];
-  check(callback) {
-    closures.add(callback);
-    return callback();
-  }
-
-  var values = [];
-  for (var i = 0; i < 4; check(() => ++i)) {
-    values.add(i);
-  }
-  Expect.listEquals([0, 1, 2, 3], values);
-  Expect.listEquals([2, 3, 4, 5], closures.map(run).toList());
-}
-
-initializer_condition() {
-  var values = [];
-  for (var i = 0, fn = () => i; run(() => ++i) < 3;) {
-    values.add(i);
-    values.add(fn());
-  }
-  Expect.listEquals([1, 1, 2, 1], values);
-}
-
-initializer_update() {
-  var update_closures = [];
-  update(callback) {
-    update_closures.add(callback);
-    return callback();
-  }
-
-  var init_closure;
-  for (var i = 0, fn = () => i; i < 4; update(() => ++i)) {
-    init_closure = fn;
-    if (i == 0) {
-      ++i; // Mutate copy of 'i' from first iteration.
-    }
-  }
-  Expect.equals(1, init_closure());
-  Expect.listEquals([3, 4, 5], update_closures.map(run).toList());
-  Expect.equals(1, init_closure());
-}
-
-initializer_body() {
-  var closures = [];
-  for (var i = 0, fn = () => i; i < 3; i++) {
-    closures.add(() => i);
-    closures.add(fn);
-    fn = () => i;
-  }
-  Expect.listEquals([0, 0, 1, 0, 2, 1], closures.map(run).toList());
-}
-
-condition_update() {
-  var cond_closures = [];
-  check(callback) {
-    cond_closures.add(callback);
-    return callback();
-  }
-
-  var update_closures = [];
-  update(callback) {
-    update_closures.add(callback);
-    return callback();
-  }
-
-  var values = [];
-  for (var i = 0; check(() => i) < 4; update(() => ++i)) {
-    values.add(i);
-  }
-  Expect.listEquals([0, 1, 2, 3], values);
-
-  Expect.listEquals([0, 1, 2, 3, 4], cond_closures.map(run).toList());
-  Expect.listEquals([2, 3, 4, 5], update_closures.map(run).toList());
-  Expect.listEquals([0, 2, 3, 4, 5], cond_closures.map(run).toList());
-}
-
-condition_body() {
-  var cond_closures = [];
-  check(callback) {
-    cond_closures.add(callback);
-    return callback();
-  }
-
-  var body_closures = [];
-  do_body(callback) {
-    body_closures.add(callback);
-    return callback();
-  }
-
-  for (var i = 0; check(() => i) < 4; ++i) {
-    do_body(() => i);
-  }
-  Expect.listEquals([0, 1, 2, 3, 4], cond_closures.map(run).toList());
-  Expect.listEquals([0, 1, 2, 3], body_closures.map(run).toList());
-}
-
-initializer_condition_update() {
-  var init;
-  var cond_closures = [];
-  check(callback) {
-    cond_closures.add(callback);
-    return callback();
-  }
-
-  var update_closures = [];
-  update(callback) {
-    update_closures.add(callback);
-    return callback();
-  }
-
-  var values = [];
-  for (var i = 0, fn = () => i; check(() => ++i) < 8; update(() => ++i)) {
-    init = fn;
-    values.add(i);
-  }
-  Expect.listEquals([1, 3, 5, 7], values);
-  Expect.equals(1, init());
-
-  Expect.listEquals([2, 4, 6, 8, 10], cond_closures.map(run).toList());
-  Expect.listEquals([5, 7, 9, 11], update_closures.map(run).toList());
-}
-
-initializer_condition_body() {
-  var init;
-  var cond_closures = [];
-  check(callback) {
-    cond_closures.add(callback);
-    return callback();
-  }
-
-  var body_closures = [];
-  do_body(callback) {
-    body_closures.add(callback);
-    return callback();
-  }
-
-  var values = [];
-  for (var i = 0, fn = () => i; check(() => ++i) < 8;) {
-    init = fn;
-    do_body(() => ++i);
-    values.add(i);
-  }
-  Expect.listEquals([2, 4, 6, 8], values);
-  Expect.equals(2, init());
-
-  Expect.listEquals([3, 5, 7, 9, 10], cond_closures.map(run).toList());
-  Expect.listEquals([4, 6, 8, 10], body_closures.map(run).toList());
-}
-
-initializer_update_body() {
-  var init;
-  var update_closures = [];
-  update(callback) {
-    update_closures.add(callback);
-    return callback();
-  }
-
-  var body_closures = [];
-  do_body(callback) {
-    body_closures.add(callback);
-    return callback();
-  }
-
-  var values = [];
-  for (var i = 0, fn = () => i; i < 8; update(() => ++i)) {
-    init = fn;
-    do_body(() => ++i);
-    values.add(i);
-  }
-  Expect.listEquals([1, 3, 5, 7], values);
-  Expect.equals(1, init());
-
-  Expect.listEquals([4, 6, 8, 9], update_closures.map(run).toList());
-  Expect.listEquals([2, 5, 7, 9], body_closures.map(run).toList());
-}
-
-condition_update_body() {
-  var cond_closures = [];
-  check(callback) {
-    cond_closures.add(callback);
-    return callback();
-  }
-
-  var update_closures = [];
-  update(callback) {
-    update_closures.add(callback);
-    return callback();
-  }
-
-  var body_closures = [];
-  do_body(callback) {
-    body_closures.add(callback);
-    return callback();
-  }
-
-  var values = [];
-  for (var i = 0; check(() => i) < 8; update(() => ++i)) {
-    do_body(() => ++i);
-    values.add(i);
-  }
-  Expect.listEquals([1, 3, 5, 7], values);
-
-  Expect.listEquals([1, 3, 5, 7, 8], cond_closures.map(run).toList());
-  Expect.listEquals([4, 6, 8, 9], update_closures.map(run).toList());
-  Expect.listEquals([2, 5, 7, 9], body_closures.map(run).toList());
-  Expect.listEquals([2, 5, 7, 9, 9], cond_closures.map(run).toList());
-}
-
-initializer_condition_update_body() {
-  var init;
-  var cond_closures = [];
-  check(callback) {
-    cond_closures.add(callback);
-    return callback();
-  }
-
-  var update_closures = [];
-  update(callback) {
-    update_closures.add(callback);
-    return callback();
-  }
-
-  var body_closures = [];
-  do_body(callback) {
-    body_closures.add(callback);
-    return callback();
-  }
-
-  var values = [];
-  for (var i = 0, fn = () => i; check(() => i) < 8; update(() => ++i)) {
-    init = fn;
-    do_body(() => ++i);
-    values.add(i);
-  }
-  Expect.listEquals([1, 3, 5, 7], values);
-  Expect.equals(1, init());
-
-  Expect.listEquals([1, 3, 5, 7, 8], cond_closures.map(run).toList());
-  Expect.listEquals([4, 6, 8, 9], update_closures.map(run).toList());
-  Expect.listEquals([2, 5, 7, 9], body_closures.map(run).toList());
-  Expect.listEquals([2, 5, 7, 9, 9], cond_closures.map(run).toList());
-}
-
-main() {
-  initializer();
-  condition();
-  update();
-  body();
-  initializer_condition();
-  initializer_update();
-  initializer_body();
-  condition_update();
-  condition_body();
-  initializer_condition_update();
-  initializer_condition_body();
-  initializer_update_body();
-  condition_update_body();
-  initializer_condition_update_body();
-}
diff --git a/tests/language_2/loop/for_without_condition_test.dart b/tests/language_2/loop/for_without_condition_test.dart
deleted file mode 100644
index 2f709f05b54..00000000000
--- a/tests/language_2/loop/for_without_condition_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  int i = 0;
-  for (;; i++) {
-    if (i == 0) break;
-    Expect.fail("Should not enter here");
-  }
-  Expect.equals(0, i);
-}
diff --git a/tests/language_2/loop/hoist_test.dart b/tests/language_2/loop/hoist_test.dart
deleted file mode 100644
index a5ce53dee5c..00000000000
--- a/tests/language_2/loop/hoist_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  num x;
-  A() : this.x = 0;
-
-  void bar() {
-    // dart2js hoisted the this.x out of the loop, and missed that setX would
-    // change the value.
-    for (int i = 1; i < 3; i++) {
-      setX(499);
-      foo(x);
-      break;
-    }
-  }
-
-  setX(x) => this.x = x;
-}
-
-var saved;
-foo(x) => saved = x;
-
-main() {
-  A a = new A();
-  for (int i = 0; i < 1; i++) {
-    a.bar();
-  }
-  Expect.equals(499, saved);
-}
diff --git a/tests/language_2/loop/non_dominating_loop_test.dart b/tests/language_2/loop/non_dominating_loop_test.dart
deleted file mode 100644
index aa6d4a5106c..00000000000
--- a/tests/language_2/loop/non_dominating_loop_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-int calls = 0;
-
-void callMeOnce() {
-  Expect.equals(0, calls);
-  calls++;
-}
-
-main() {
-  int i = 0;
-  do {
-    i++;
-    if (i > 3) break;
-  } while (i < 10);
-
-  callMeOnce();
-  Expect.equals(4, i);
-}
diff --git a/tests/language_2/loop/unconditional_break_test.dart b/tests/language_2/loop/unconditional_break_test.dart
deleted file mode 100644
index 32d50d9d572..00000000000
--- a/tests/language_2/loop/unconditional_break_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test to ensure that we get don't exceptions in the SSA verifier when
-// generating phi for the return value of an inlined function that contains a
-// loop that always breaks.
-doWhileBreak() {
-  do {
-    break;
-  } while (true);
-}
-
-main() {
-  doWhileBreak();
-}
diff --git a/tests/language_2/loop/while_test.dart b/tests/language_2/loop/while_test.dart
deleted file mode 100644
index 3636225178b..00000000000
--- a/tests/language_2/loop/while_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing while statement.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Helper {
-  static int f1(bool b) {
-    while (b) return 1;
-
-    return 2;
-  }
-
-  static int f2(bool b) {
-    while (b) {
-      return 1;
-    }
-    return 2;
-  }
-
-  static int f3(int n) {
-    int i = 0;
-    while (i < n) {
-      i++;
-    }
-    return i;
-  }
-
-  static int f4() {
-    // Verify that side effects in the condition are visible after the loop.
-    int i = 0;
-    while (++i < 3) {}
-    return i;
-  }
-}
-
-class WhileTest {
-  static testMain() {
-    Expect.equals(1, Helper.f1(true));
-    Expect.equals(2, Helper.f1(false));
-    Expect.equals(1, Helper.f2(true));
-    Expect.equals(2, Helper.f2(false));
-    Expect.equals(0, Helper.f3(-2));
-    Expect.equals(0, Helper.f3(-1));
-    Expect.equals(0, Helper.f3(0));
-    Expect.equals(1, Helper.f3(1));
-    Expect.equals(2, Helper.f3(2));
-    Expect.equals(3, Helper.f4());
-  }
-}
-
-main() {
-  WhileTest.testMain();
-}
diff --git a/tests/language_2/main/main_test.dart b/tests/language_2/main/main_test.dart
deleted file mode 100644
index 5fb10affba3..00000000000
--- a/tests/language_2/main/main_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main(
-
-a //        //# 01: ok
-a, b //     //# 02: ok
-a, b, c //  //# 03: ok
-a, b, {c}   //# 04: ok
-a, b, [c]   //# 05: ok
-
-[a] //      //# 20: ok
-a, [b] //   //# 21: ok
-[a, b] //   //# 22: ok
-
-{a} //      //# 41: ok
-a, {b} //   //# 42: ok
-{a, b} //   //# 43: ok
-[a, b, c]   //# 44: ok
-{a, b, c}   //# 45: ok
-
-    ) {}
diff --git a/tests/language_2/main/no_main_test.dart b/tests/language_2/main/no_main_test.dart
deleted file mode 100644
index 7866fb2d3c1..00000000000
--- a/tests/language_2/main/no_main_test.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/* //# 01: static type warning, runtime error
-main() {}
-*/ //# 01: continued
diff --git a/tests/language_2/main/not_a_function_test.dart b/tests/language_2/main/not_a_function_test.dart
deleted file mode 100644
index 5b5321c59fe..00000000000
--- a/tests/language_2/main/not_a_function_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {}
-
-var main;
-//  ^^^^
-// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-// [cfe] 'main' is already declared in this scope.
diff --git a/tests/language_2/malbounded/instantiation_runtime_test.dart b/tests/language_2/malbounded/instantiation_runtime_test.dart
deleted file mode 100644
index b326933bf79..00000000000
--- a/tests/language_2/malbounded/instantiation_runtime_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Super<T extends num> {}
-
-
-
-main() {
-
-
-
-}
diff --git a/tests/language_2/malbounded/instantiation_test.dart b/tests/language_2/malbounded/instantiation_test.dart
deleted file mode 100644
index b3f0bfa79dc..00000000000
--- a/tests/language_2/malbounded/instantiation_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Super<T extends num> {}
-class Malbounded1 implements Super<String> {}
-//                           ^
-// [cfe] Type argument 'String' doesn't conform to the bound 'num' of the type variable 'T' on 'Super'.
-//                                 ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-class Malbounded2 extends Super<String> {}
-//                        ^
-// [cfe] Type argument 'String' doesn't conform to the bound 'num' of the type variable 'T' on 'Super'.
-//                              ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-
-main() {
-  new Malbounded1();
-  new Malbounded2();
-  new Super<String>();
-  //  ^
-  // [cfe] Type argument 'String' doesn't conform to the bound 'num' of the type variable 'T' on 'Super'.
-  //        ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-}
diff --git a/tests/language_2/malbounded/redirecting_factory_test.dart b/tests/language_2/malbounded/redirecting_factory_test.dart
deleted file mode 100644
index 0c9c6ca9413..00000000000
--- a/tests/language_2/malbounded/redirecting_factory_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A<
-    Ta
-           extends num // //# 02: continued
-    > implements B<Ta>, C<Ta> {}
-
-class B<
-    Tb
-           extends num // //# 03: continued
-    > {
-  factory B() = A<Tb>;
-}
-
-class C<
-    Tc
-           extends num // //# 04: continued
-    > {
-  factory C() = A<Tc>;
-}
-
-class D<
-    Td
-           extends num // //# 05: continued
-    > {
-  test() => new C<Td>();
-}
-
-main() {
-  new D<int>().test();
-  new D<String>().test(); // //# 01: ok
-  new D<String>().test(); // //# 02: compile-time error
-  new D<String>().test(); // //# 03: compile-time error
-  new D<String>().test(); // //# 04: compile-time error
-  new D<String>().test(); // //# 05: compile-time error
-}
diff --git a/tests/language_2/malbounded/type_cast2_test.dart b/tests/language_2/malbounded/type_cast2_test.dart
deleted file mode 100644
index 70d11c2d241..00000000000
--- a/tests/language_2/malbounded/type_cast2_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A<T extends num> {}
-
-class B<T> {
-  test() {
-    new A() as A<T>;
-    //         ^
-    // [cfe] Type argument 'T' doesn't conform to the bound 'num' of the type variable 'T' on 'A'.
-    //           ^
-    // [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-  }
-}
-
-main() {
-  var b = new B<String>();
-  Expect.throws(() => b.test());
-}
diff --git a/tests/language_2/malbounded/type_cast_runtime_test.dart b/tests/language_2/malbounded/type_cast_runtime_test.dart
deleted file mode 100644
index 7c9f34d27fc..00000000000
--- a/tests/language_2/malbounded/type_cast_runtime_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-class Super<T extends num> {}
-class Malbounded1 implements Super
-
-  {}
-class Malbounded2 extends Super
-
-  {}
-
-main() {
-  var m = new Malbounded1();
-  Expect.throwsTypeError(() => m as Super<int>);
-  var s = new Super<int>();
-  Expect.throwsTypeError(() => s as Malbounded1);
-  Expect.throwsTypeError(() => s as Malbounded2);
-  s as Super
-
-      ;
-}
diff --git a/tests/language_2/malbounded/type_cast_test.dart b/tests/language_2/malbounded/type_cast_test.dart
deleted file mode 100644
index 7e98c551b50..00000000000
--- a/tests/language_2/malbounded/type_cast_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class Super<T extends num> {}
-class Malbounded1 implements Super
-//                           ^
-// [cfe] Type argument 'String' doesn't conform to the bound 'num' of the type variable 'T' on 'Super'.
-  <String>
-// ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-  {}
-class Malbounded2 extends Super
-//                        ^
-// [cfe] Type argument 'String' doesn't conform to the bound 'num' of the type variable 'T' on 'Super'.
-  <String>
-// ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-  {}
-
-main() {
-  var m = new Malbounded1();
-  Expect.throwsTypeError(() => m as Super<int>);
-  var s = new Super<int>();
-  Expect.throwsTypeError(() => s as Malbounded1);
-  Expect.throwsTypeError(() => s as Malbounded2);
-  s as Super
-  //   ^
-  // [cfe] Type argument 'String' doesn't conform to the bound 'num' of the type variable 'T' on 'Super'.
-      <String>
-//     ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-      ;
-}
diff --git a/tests/language_2/malbounded/type_literal_runtime_test.dart b/tests/language_2/malbounded/type_literal_runtime_test.dart
deleted file mode 100644
index 2ca0f44237f..00000000000
--- a/tests/language_2/malbounded/type_literal_runtime_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-class Super<T extends num> {}
-
-class Malbounded extends Super
-
-    {}
-
-main() {
-  Type t = Malbounded;
-  Expect.isNotNull(t);
-  Expect.isTrue(t is Type);
-}
diff --git a/tests/language_2/malbounded/type_literal_test.dart b/tests/language_2/malbounded/type_literal_test.dart
deleted file mode 100644
index eb4a34c0ebe..00000000000
--- a/tests/language_2/malbounded/type_literal_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class Super<T extends num> {}
-
-class Malbounded extends Super
-//                       ^
-// [cfe] Type argument 'String' doesn't conform to the bound 'num' of the type variable 'T' on 'Super'.
-    <String>
-//   ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-    {}
-
-main() {
-  Type t = Malbounded;
-  Expect.isNotNull(t);
-  Expect.isTrue(t is Type);
-}
diff --git a/tests/language_2/malbounded/type_test2_runtime_test.dart b/tests/language_2/malbounded/type_test2_runtime_test.dart
deleted file mode 100644
index 21d04c8349e..00000000000
--- a/tests/language_2/malbounded/type_test2_runtime_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class A<T extends num> {}
-
-class B<T> {
-  test() {
-    new A() is A
-
-        ;
-  }
-}
-
-main() {
-  var b = new B<String>();
-  b.test();
-}
diff --git a/tests/language_2/malbounded/type_test2_test.dart b/tests/language_2/malbounded/type_test2_test.dart
deleted file mode 100644
index 0e4cb696e40..00000000000
--- a/tests/language_2/malbounded/type_test2_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A<T extends num> {}
-
-class B<T> {
-  test() {
-    new A() is A
-    //         ^
-    // [cfe] Type argument 'T' doesn't conform to the bound 'num' of the type variable 'T' on 'A'.
-        <T>
-//       ^
-// [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-        ;
-  }
-}
-
-main() {
-  var b = new B<String>();
-  b.test();
-}
diff --git a/tests/language_2/malbounded/type_test_runtime_test.dart b/tests/language_2/malbounded/type_test_runtime_test.dart
deleted file mode 100644
index 92a424b2556..00000000000
--- a/tests/language_2/malbounded/type_test_runtime_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-class Super<T extends num> {}
-
-class Malbounded1 implements Super
-
-    {}
-
-class Malbounded2 extends Super
-
-    {}
-
-main() {
-  var m = new Malbounded1();
-  Expect.isFalse(m is Super<int>);
-  var s = new Super<int>();
-  Expect.isFalse(s is Malbounded1);
-  Expect.isFalse(s is Malbounded2);
-  Expect.isTrue(s is Super
-
-      );
-}
diff --git a/tests/language_2/malbounded/type_test_test.dart b/tests/language_2/malbounded/type_test_test.dart
deleted file mode 100644
index c3128573e8e..00000000000
--- a/tests/language_2/malbounded/type_test_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class Super<T extends num> {}
-
-class Malbounded1 implements Super
-//                           ^
-// [cfe] Type argument 'String' doesn't conform to the bound 'num' of the type variable 'T' on 'Super'.
-    <String>
-//   ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-    {}
-
-class Malbounded2 extends Super
-//                        ^
-// [cfe] Type argument 'String' doesn't conform to the bound 'num' of the type variable 'T' on 'Super'.
-    <String>
-//   ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-    {}
-
-main() {
-  var m = new Malbounded1();
-  Expect.isFalse(m is Super<int>);
-  var s = new Super<int>();
-  Expect.isFalse(s is Malbounded1);
-  Expect.isFalse(s is Malbounded2);
-  Expect.isTrue(s is Super
-  //                 ^
-  // [cfe] Type argument 'String' doesn't conform to the bound 'num' of the type variable 'T' on 'Super'.
-      <String>
-//     ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-      );
-}
diff --git a/tests/language_2/malformed/bound_test.dart b/tests/language_2/malformed/bound_test.dart
deleted file mode 100644
index fbc42f675c8..00000000000
--- a/tests/language_2/malformed/bound_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class C<T
-    extends Malformed  //# 00: compile-time error
-    > {
-  f(T t) => t
-      .foo  //# 01: compile-time error
-      ;
-}
-
-main() {
-  new C<int>().f(1);
-}
diff --git a/tests/language_2/malformed/inheritance_runtime_test.dart b/tests/language_2/malformed/inheritance_runtime_test.dart
deleted file mode 100644
index 8d943b127ad..00000000000
--- a/tests/language_2/malformed/inheritance_runtime_test.dart
+++ /dev/null
@@ -1,88 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Tests that malformed types used in extends, implements, and with clauses
-// cause compile-time errors.
-
-class A<T> {}
-
-class C
-
-    {
-}
-
-class C1
-
-    {
-}
-
-class C2
-
-    {
-}
-
-class C3
-
-    {
-}
-
-class C4
-
-    {
-}
-
-class C5
-
-    {
-}
-
-class C6<A>
-
-    {
-}
-
-class C7<A>
-
-    {
-}
-
-class C8<A>
-
-    {
-}
-
-class C9<A>
-
-    {
-}
-
-class C10<A>
-
-    {
-}
-
-class C11<A>
-
-    {
-}
-
-void main() {
-  new C();
-  new C1();
-  new C2();
-  new C3();
-  new C4();
-  new C5();
-  new C6<Object>();
-  new C7<Object>();
-  new C8<Object>();
-  new C9<Object>();
-  new C10<Object>();
-  new C11<Object>();
-}
diff --git a/tests/language_2/malformed/inheritance_test.dart b/tests/language_2/malformed/inheritance_test.dart
deleted file mode 100644
index 6a0c070789f..00000000000
--- a/tests/language_2/malformed/inheritance_test.dart
+++ /dev/null
@@ -1,148 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that malformed types used in extends, implements, and with clauses
-// cause compile-time errors.
-
-class A<T> {}
-
-class C
-    extends Unresolved
-    //      ^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.EXTENDS_NON_CLASS
-    // [cfe] Type 'Unresolved' not found.
-    {
-}
-
-class C1
-    extends A<Unresolved>
-    //        ^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-    // [cfe] Type 'Unresolved' not found.
-    {
-}
-
-class C2
-//    ^
-// [cfe] The type 'Unresolved' can't be mixed in.
-    extends Object with Unresolved
-    //                  ^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.MIXIN_OF_NON_CLASS
-    // [cfe] Type 'Unresolved' not found.
-    {
-}
-
-class C3
-    extends Object with A<Unresolved>
-    //                    ^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-    // [cfe] Type 'Unresolved' not found.
-    {
-}
-
-class C4
-    implements Unresolved
-    //         ^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.IMPLEMENTS_NON_CLASS
-    // [cfe] Type 'Unresolved' not found.
-    {
-}
-
-class C5
-    implements A<Unresolved>
-    //           ^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-    // [cfe] Type 'Unresolved' not found.
-    {
-}
-
-class C6<A>
-    extends A<int>
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.EXTENDS_NON_CLASS
-    //      ^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-    // [cfe] Can't use type arguments with type variable 'A'.
-    {
-}
-
-class C7<A>
-    extends A<Unresolved>
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.EXTENDS_NON_CLASS
-    //      ^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-    // [cfe] Can't use type arguments with type variable 'A'.
-    //        ^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-    // [cfe] Type 'Unresolved' not found.
-    {
-}
-
-class C8<A>
-//    ^
-// [cfe] The type 'A<int>' can't be mixed in.
-    extends Object with A<int>
-    //                  ^
-    // [analyzer] COMPILE_TIME_ERROR.MIXIN_OF_NON_CLASS
-    //                  ^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-    // [cfe] Can't use type arguments with type variable 'A'.
-    {
-}
-
-class C9<A>
-//    ^
-// [cfe] The type 'A<Unresolved>' can't be mixed in.
-    extends Object with A<Unresolved>
-    //                  ^
-    // [analyzer] COMPILE_TIME_ERROR.MIXIN_OF_NON_CLASS
-    //                  ^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-    // [cfe] Can't use type arguments with type variable 'A'.
-    //                    ^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-    // [cfe] Type 'Unresolved' not found.
-    {
-}
-
-class C10<A>
-    implements A<int>
-    //         ^
-    // [analyzer] COMPILE_TIME_ERROR.IMPLEMENTS_NON_CLASS
-    //         ^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-    // [cfe] Can't use type arguments with type variable 'A'.
-    {
-}
-
-class C11<A>
-    implements A<Unresolved>
-    //         ^
-    // [analyzer] COMPILE_TIME_ERROR.IMPLEMENTS_NON_CLASS
-    //         ^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-    // [cfe] Can't use type arguments with type variable 'A'.
-    //           ^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-    // [cfe] Type 'Unresolved' not found.
-    {
-}
-
-void main() {
-  new C();
-  new C1();
-  new C2();
-  new C3();
-  new C4();
-  new C5();
-  new C6<Object>();
-  new C7<Object>();
-  new C8<Object>();
-  new C9<Object>();
-  new C10<Object>();
-  new C11<Object>();
-}
diff --git a/tests/language_2/malformed/malformed2_lib.dart b/tests/language_2/malformed/malformed2_lib.dart
deleted file mode 100644
index d46a0fccdfb..00000000000
--- a/tests/language_2/malformed/malformed2_lib.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-part of malformed_test;
-
-void testValue(var o) {
-  o is Unresolved1;
-  o is List<Unresolved2>;
-  o is! Unresolved3;
-  o is! List<Unresolved4>;
-
-  try {
-    o as Unresolved5;
-  } catch (e) {
-  }
-
-  try {
-    o as List<Unresolved6>;
-  } catch (e) {
-  }
-
-  try {
-  } on Unresolved7 catch (e) {
-  } catch (e) {
-  }
-
-  try {
-    throw o;
-  } on Unresolved8 catch (e) {
-  } catch (e) {
-  }
-
-  try {
-    throw o;
-  } on List<String> catch (e) {
-  } on TypeError catch (e) {
-  } on Unresolved9 catch (e) {
-  } catch (e) {
-  }
-
-  try {
-    throw o;
-  } on List<Unresolved10> catch (e) {
-  } on TypeError catch (e) {
-  } on Unresolved11 catch (e) {
-  } catch (e) {
-  }
-
-  Unresolved12 u = o;
-
-  List<Unresolved13> u2 = o;
-}
diff --git a/tests/language_2/malformed/malformed2_test.dart b/tests/language_2/malformed/malformed2_test.dart
deleted file mode 100644
index f6c32cb502e..00000000000
--- a/tests/language_2/malformed/malformed2_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library malformed_test;
-
-// This part includes the actual tests.
-part 'malformed2_lib.dart';
-
-// The part-file cannot contain error markers.
-// Therefore we create a fresh class for each test.
-/* //# 01: compile-time error
-class Unresolved1 {}
-*/ //# 01: continued
-/* //# 02: compile-time error
-class Unresolved2 {}
-*/ //# 02: continued
-/* //# 03: compile-time error
-class Unresolved3 {}
-*/ //# 03: continued
-/* //# 04: compile-time error
-class Unresolved4 {}
-*/ //# 04: continued
-/* //# 05: compile-time error
-class Unresolved5 {}
-*/ //# 05: continued
-/* //# 06: compile-time error
-class Unresolved6 {}
-*/ //# 06: continued
-/* //# 07: compile-time error
-class Unresolved7 {}
-*/ //# 07: continued
-/* //# 08: compile-time error
-class Unresolved8 {}
-*/ //# 08: continued
-/* //# 09: compile-time error
-class Unresolved9 {}
-*/ //# 09: continued
-/* //# 10: compile-time error
-class Unresolved10 {}
-*/ //# 10: continued
-/* //# 11: compile-time error
-class Unresolved11 {}
-*/ //# 11: continued
-/* //# 12: compile-time error
-class Unresolved12 {}
-*/ //# 12: continued
-/* //# 13: compile-time error
-class Unresolved13 {}
-*/ //# 13: continued
-
-const Unresolved c1 = 0;  //# 00: compile-time error
-
-void main() {
-  print(c1);  //# 00: continued
-  testValue(null);
-}
diff --git a/tests/language_2/malformed/malformed_test.dart b/tests/language_2/malformed/malformed_test.dart
deleted file mode 100644
index 9d5f2aeb9b9..00000000000
--- a/tests/language_2/malformed/malformed_test.dart
+++ /dev/null
@@ -1,168 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:expect/expect.dart' as prefix; // Define 'prefix'.
-
-checkIsUnresolved(var v) {
-  v is Unresolved;
-  //   ^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_TEST_WITH_UNDEFINED_NAME
-  // [cfe] 'Unresolved' isn't a type.
-  v is Unresolved<int>;
-  //   ^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_TEST_WITH_UNDEFINED_NAME
-  // [cfe] 'Unresolved' isn't a type.
-  v is prefix.Unresolved;
-  //   ^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_TEST_WITH_UNDEFINED_NAME
-  //          ^
-  // [cfe] 'Unresolved' isn't a type.
-  v is prefix.Unresolved<int>;
-  //   ^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_TEST_WITH_UNDEFINED_NAME
-  //          ^
-  // [cfe] 'Unresolved' isn't a type.
-}
-
-checkIsListUnresolved(var v) {
-  v is List<Unresolved>;
-  //        ^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-  // [cfe] 'Unresolved' isn't a type.
-  v is List<Unresolved<int>>;
-  //        ^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-  // [cfe] 'Unresolved' isn't a type.
-  v is List<prefix.Unresolved>;
-  //        ^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-  //               ^
-  // [cfe] 'Unresolved' isn't a type.
-  v is List<prefix.Unresolved<int>>;
-  //        ^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-  //               ^
-  // [cfe] 'Unresolved' isn't a type.
-  v is List<int, String>;
-  //   ^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-  // [cfe] Expected 1 type arguments.
-}
-
-checkAsUnresolved(var v) {
-  v as Unresolved;
-  //   ^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CAST_TO_NON_TYPE
-  // [cfe] 'Unresolved' isn't a type.
-  v as Unresolved<int>;
-  //   ^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CAST_TO_NON_TYPE
-  // [cfe] 'Unresolved' isn't a type.
-  v as prefix.Unresolved;
-  //   ^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CAST_TO_NON_TYPE
-  //          ^
-  // [cfe] 'Unresolved' isn't a type.
-  v as prefix.Unresolved<int>;
-  //   ^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CAST_TO_NON_TYPE
-  //          ^
-  // [cfe] 'Unresolved' isn't a type.
-}
-
-checkAsListUnresolved(var v) {
-  v as List<Unresolved>;
-  //        ^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-  // [cfe] 'Unresolved' isn't a type.
-  v as List<Unresolved<int>>;
-  //        ^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-  // [cfe] 'Unresolved' isn't a type.
-  v as List<prefix.Unresolved>;
-  //        ^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-  //               ^
-  // [cfe] 'Unresolved' isn't a type.
-  v as List<prefix.Unresolved<int>>;
-  //        ^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-  //               ^
-  // [cfe] 'Unresolved' isn't a type.
-  v as List<int, String>;
-  //   ^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-  // [cfe] Expected 1 type arguments.
-}
-
-void main() {
-  checkIsUnresolved('');
-  checkAsUnresolved('');
-  checkIsListUnresolved([]);
-  checkAsListUnresolved([]);
-
-  new undeclared_prefix.Unresolved();
-  //  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-  // [cfe] Couldn't find constructor 'undeclared_prefix.Unresolved'.
-  new undeclared_prefix.Unresolved<int>();
-  //  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-  // [cfe] Couldn't find constructor 'undeclared_prefix.Unresolved'.
-
-  try {
-    throw 'foo';
-  }
-    on Unresolved
-    // ^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.NON_TYPE_IN_CATCH_CLAUSE
-    // [cfe] 'Unresolved' isn't a type.
-    catch (e) {
-  }
-
-  try {
-    throw 'foo';
-  }
-    on Unresolved<int>
-    // ^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.NON_TYPE_IN_CATCH_CLAUSE
-    // [cfe] 'Unresolved' isn't a type.
-    catch (e) {
-  }
-
-  try {
-    throw 'foo';
-  }
-    on prefix.Unresolved
-    // ^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.NON_TYPE_IN_CATCH_CLAUSE
-    //        ^
-    // [cfe] 'Unresolved' isn't a type.
-    catch (e) {
-  }
-
-  try {
-    throw 'foo';
-  }
-    on prefix.Unresolved<int>
-    // ^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.NON_TYPE_IN_CATCH_CLAUSE
-    //        ^
-    // [cfe] 'Unresolved' isn't a type.
-    catch (e) {
-  }
-
-  try {
-    throw 'foo';
-  }
-    on undeclared_prefix.Unresolved<int>
-    // ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.NON_TYPE_IN_CATCH_CLAUSE
-    // [cfe] 'undeclared_prefix.Unresolved' can't be used as a type because 'undeclared_prefix' isn't defined.
-    catch (e) {
-  }
-}
diff --git a/tests/language_2/malformed/runtime_test.dart b/tests/language_2/malformed/runtime_test.dart
deleted file mode 100644
index bf16221a384..00000000000
--- a/tests/language_2/malformed/runtime_test.dart
+++ /dev/null
@@ -1,86 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-import 'package:expect/expect.dart' as prefix; // Define 'prefix'.
-
-checkIsUnresolved(var v) {
-
-
-
-
-}
-
-checkIsListUnresolved(var v) {
-
-
-
-
-
-}
-
-checkAsUnresolved(var v) {
-
-
-
-
-}
-
-checkAsListUnresolved(var v) {
-
-
-
-
-
-}
-
-void main() {
-  checkIsUnresolved('');
-  checkAsUnresolved('');
-  checkIsListUnresolved([]);
-  checkAsListUnresolved([]);
-
-
-
-
-  try {
-    throw 'foo';
-  }
-
-    catch (e) {
-  }
-
-  try {
-    throw 'foo';
-  }
-
-    catch (e) {
-  }
-
-  try {
-    throw 'foo';
-  }
-
-    catch (e) {
-  }
-
-  try {
-    throw 'foo';
-  }
-
-    catch (e) {
-  }
-
-  try {
-    throw 'foo';
-  }
-
-    catch (e) {
-  }
-}
diff --git a/tests/language_2/malformed/type_test.dart b/tests/language_2/malformed/type_test.dart
deleted file mode 100644
index f86205ab9be..00000000000
--- a/tests/language_2/malformed/type_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-null_() => null;
-final Undeclared x = null_();
-//    ^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_CLASS
-// [cfe] 'Undeclared' isn't a type.
-// [cfe] Type 'Undeclared' not found.
-
-main() {
-  print(x);
-}
diff --git a/tests/language_2/map/literal10_test.dart b/tests/language_2/map/literal10_test.dart
deleted file mode 100644
index 58706567251..00000000000
--- a/tests/language_2/map/literal10_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test the use of '__proto__' keys in maps.
-
-library map_literal10_test;
-
-import "package:expect/expect.dart";
-
-void main() {
-  var m1 = const {"__proto__": 0, 1: 1};
-  Expect.isTrue(m1.containsKey("__proto__"));
-  Expect.equals(0, m1["__proto__"]);
-  Expect.isTrue(m1.containsKey(1));
-  Expect.equals(1, m1[1]);
-  Expect.listEquals(["__proto__", 1], m1.keys.toList());
-
-  var m2 = const {1: 0, "__proto__": 1};
-  Expect.isTrue(m2.containsKey(1));
-  Expect.equals(0, m2[1]);
-  Expect.isTrue(m2.containsKey("__proto__"));
-  Expect.equals(1, m2["__proto__"]);
-  Expect.listEquals([1, "__proto__"], m2.keys.toList());
-
-  var m3 = const {"1": 0, "__proto__": 1};
-  Expect.isTrue(m3.containsKey("1"));
-  Expect.equals(0, m3["1"]);
-  Expect.isTrue(m3.containsKey("__proto__"));
-  Expect.equals(1, m3["__proto__"]);
-  Expect.listEquals(["1", "__proto__"], m3.keys.toList());
-
-  var m4 = const {"__proto__": 1, "1": 2};
-  Expect.isTrue(m4.containsKey("1"));
-  Expect.equals(2, m4["1"]);
-  Expect.isTrue(m4.containsKey("__proto__"));
-  Expect.equals(1, m4["__proto__"]);
-  Expect.listEquals(["__proto__", "1"], m4.keys.toList());
-}
diff --git a/tests/language_2/map/literal11_test.dart b/tests/language_2/map/literal11_test.dart
deleted file mode 100644
index ce974958981..00000000000
--- a/tests/language_2/map/literal11_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test the use type arguments on constant maps.
-
-library map_literal11_test;
-
-import "package:expect/expect.dart";
-
-void foo(Map m) {
-  m[23] = 23; //# none: runtime error
-}
-
-void main() {
-  Map<String, dynamic> map = {};
-  foo(map);
-}
diff --git a/tests/language_2/map/literal12_test.dart b/tests/language_2/map/literal12_test.dart
deleted file mode 100644
index 9cce37db2b0..00000000000
--- a/tests/language_2/map/literal12_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test relative order of key and value evaluation.
-
-library map_literal12_test;
-
-import "package:expect/expect.dart";
-
-int x = 0;
-void main() {
-  var map1 = {++x: ++x};
-  Expect.equals('{1: 2}', map1.toString());
-
-  var map2 = {++x: ++x, ++x: ++x};
-  Expect.equals('{3: 4, 5: 6}', map2.toString());
-}
diff --git a/tests/language_2/map/literal13_test.dart b/tests/language_2/map/literal13_test.dart
deleted file mode 100644
index 8e8156fcad8..00000000000
--- a/tests/language_2/map/literal13_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Legacy compound literal syntax that should go away.
-
-main() {
-  var map = new Map<int>{ "a": 1, "b": 2, "c": 3 };
-  //        ^^^^^^^
-  // [analyzer] SYNTACTIC_ERROR.LITERAL_WITH_CLASS_AND_NEW
-  // [cfe] A map literal can't be prefixed by 'new Map'.
-  //                      ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.MAP_ENTRY_NOT_IN_MAP
-  //                         ^
-  // [cfe] Expected ',' before this.
-  //                              ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.MAP_ENTRY_NOT_IN_MAP
-  //                                 ^
-  // [cfe] Expected ',' before this.
-  //                                      ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.MAP_ENTRY_NOT_IN_MAP
-  //                                         ^
-  // [cfe] Expected ',' before this.
-}
diff --git a/tests/language_2/map/literal14_test.dart b/tests/language_2/map/literal14_test.dart
deleted file mode 100644
index a3850d279e5..00000000000
--- a/tests/language_2/map/literal14_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Dart test program const map literals.
-
-class MapLiteral2NegativeTest<T> {
-  test() {
-    var m = const <String, T>{};
-    //                     ^
-    // [analyzer] COMPILE_TIME_ERROR.INVALID_TYPE_ARGUMENT_IN_CONST_LITERAL
-    // [cfe] Type variables can't be used as constants.
-  }
-}
-
-main() {
-  MapLiteral2NegativeTest<int>().test();
-}
diff --git a/tests/language_2/map/literal15_test.dart b/tests/language_2/map/literal15_test.dart
deleted file mode 100644
index 3ce3460abd5..00000000000
--- a/tests/language_2/map/literal15_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test the use of `null` keys in const maps. In versions before 2.12, when
-// nullable types were introduced, types were nullable so it was legal to have
-// `null` keys in maps.
-
-library map_literal15_test;
-
-import "package:expect/expect.dart";
-
-void test1() {
-  var m1 = const <String, int>{null: 10, 'null': 20};
-  Expect.isTrue(m1.containsKey(null));
-  Expect.isTrue(m1.containsKey(undefined()));
-  Expect.equals(10, m1[null]);
-  Expect.equals(10, m1[undefined()]);
-  Expect.isTrue(m1.containsKey('null'));
-  Expect.equals(20, m1['null']);
-  // The '.keys' carry the 'String' type
-  Expect.type<Iterable<String>>(m1.keys);
-  Expect.type<Iterable<Comparable>>(m1.keys);
-  Expect.notType<Iterable<int>>(m1.keys);
-}
-
-void test2() {
-  var m2 = const <Comparable, int>{null: 10, 'null': 20};
-  Expect.isTrue(m2.containsKey(null));
-  Expect.isTrue(m2.containsKey(undefined()));
-  Expect.equals(10, m2[null]);
-  Expect.equals(10, m2[undefined()]);
-  Expect.isTrue(m2.containsKey('null'));
-  Expect.equals(20, m2['null']);
-  // The '.keys' carry the 'Comparable' type
-  Expect.notType<Iterable<String>>(m2.keys);
-  Expect.type<Iterable<Comparable>>(m2.keys);
-  Expect.notType<Iterable<int>>(m2.keys);
-}
-
-main() {
-  test1();
-  test2();
-}
-
-// Calling `undefined()` gives us a `null` that is implemented as JavaScript
-// `undefined` on dart2js.
-@pragma('dart2js:noInline')
-dynamic get undefined => _undefined;
-
-@pragma('dart2js:noInline')
-void _undefined() {}
diff --git a/tests/language_2/map/literal1_runtime_test.dart b/tests/language_2/map/literal1_runtime_test.dart
deleted file mode 100644
index 7f29a097263..00000000000
--- a/tests/language_2/map/literal1_runtime_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// A type mismatch in a constant map literal is a compile-time error.
-
-main() {
-  var m = const
-
-    {"a": 0};
-}
diff --git a/tests/language_2/map/literal1_test.dart b/tests/language_2/map/literal1_test.dart
deleted file mode 100644
index 228f1b7ba00..00000000000
--- a/tests/language_2/map/literal1_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// A type mismatch in a constant map literal is a compile-time error.
-
-// @dart = 2.9
-
-main() {
-  var m = const
-      <String, String>
-    {"a": 0};
-    //    ^
-    // [analyzer] COMPILE_TIME_ERROR.MAP_VALUE_TYPE_NOT_ASSIGNABLE
-    // [cfe] A value of type 'int' can't be assigned to a variable of type 'String'.
-}
diff --git a/tests/language_2/map/literal2_test.dart b/tests/language_2/map/literal2_test.dart
deleted file mode 100644
index 0275dff0a78..00000000000
--- a/tests/language_2/map/literal2_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test program for map literals.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-int nextValCtr;
-
-get nextVal {
-  return nextValCtr++;
-}
-
-main() {
-  // Map literals with string interpolation in keys.
-  nextValCtr = 0;
-  var map = {"a$nextVal": "Grey", "a$nextVal": "Poupon"};
-  Expect.equals(true, map.containsKey("a0"));
-  Expect.equals(true, map.containsKey("a1"));
-  Expect.equals("Grey", map["a0"]);
-  Expect.equals("Poupon", map["a1"]);
-}
diff --git a/tests/language_2/map/literal3_test.dart b/tests/language_2/map/literal3_test.dart
deleted file mode 100644
index abf13100464..00000000000
--- a/tests/language_2/map/literal3_test.dart
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test program for map literals.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class MapLiteralTest {
-  static testMain() {
-    var map = <dynamic, dynamic>{"a": 1, "b": 2, "c": 3};
-
-    Expect.equals(map.length, 3);
-    Expect.equals(map["a"], 1);
-    Expect.equals(map["z"], null);
-    Expect.equals(map["c"], 3);
-
-    map["foo"] = 42;
-    Expect.equals(map.length, 4);
-    Expect.equals(map["foo"], 42);
-    map["foo"] = 55;
-    Expect.equals(map.length, 4);
-    Expect.equals(map["foo"], 55);
-
-    map.remove("foo");
-    Expect.equals(map.length, 3);
-    Expect.equals(map["foo"], null);
-
-    map["foo"] = "bar";
-    Expect.equals(map.length, 4);
-    Expect.equals(map["foo"], "bar");
-
-    map.clear();
-    Expect.equals(map.length, 0);
-
-    var b = 22;
-    Expect.equals(
-        22,
-        {
-          "a": 11,
-          "b": b,
-        }["b"]);
-
-    var m = new Map();
-    Expect.equals(m.length, 0);
-    for (var i = 1; i <= 16; i++) {
-      m[i.toString()] = i;
-    }
-    Expect.equals(16, m.length);
-    Expect.equals(1, m.remove("1"));
-    Expect.isNull(m.remove("1")); // Remove element twice.
-    Expect.equals(16, m.remove("16"));
-    Expect.equals(14, m.length);
-
-    final cmap = const <String, num>{"a": 10, "b": 100, "a": 1000}; //# 01: compile-time error
-    final cmap2 = const <String, num>{"a": 10, "a": 100, "a": 1000}; //# 02: compile-time error
-    var mmap = <String, num>{"a": 10, "b": 100, "a": 1000}; //# 03: ok
-    var mmap = <String, num>{"a": ctr(), "b": ctr(), "a": ctr()}; //# 04: compile-time error
-
-    Expect.equals(10, {"beta": 100, "alpha": 9 + 1}["alpha"]);
-    Expect.equals(
-        10,
-        <String, Map>{
-          "beta": {"delta": 10},
-          "alpha": {"gamma": 10}
-        }["alpha"]["gamma"]);
-
-    // Map literals at beginning of statement.
-    <String, num>{"pink": 100};
-    const <String, num>{"floyd": 100};
-  }
-}
-
-main() {
-  MapLiteralTest.testMain();
-}
diff --git a/tests/language_2/map/literal4_test.dart b/tests/language_2/map/literal4_test.dart
deleted file mode 100644
index 7e8196903d0..00000000000
--- a/tests/language_2/map/literal4_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--enable_type_checks
-//
-// Dart test program testing type checks in map literals.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class MapLiteral4Test<T> {
-  test() {
-    int result = 0;
-    var m = <String, String>{"a": 0}; //# 01: compile-time error
-    var m = <String, int>{"a": 0}; //# 02: ok
-    m[2] = 1; //# 02: compile-time error
-    var m = <String, T>{"a": "b"}; //# 03: compile-time error
-    var m = <String, T>{"a": 0}; //# 04: compile-time error
-    var m = <String, T>{"a": 0}; //# 05: continued
-    m[2] = 1; //# 05: compile-time error
-    var m = const <String, int>{"a": 0}; //# 06: continued
-    m[2] = 1; //# 06: compile-time error
-  }
-}
-
-main() {
-  var t = new MapLiteral4Test<int>();
-}
diff --git a/tests/language_2/map/literal5_test.dart b/tests/language_2/map/literal5_test.dart
deleted file mode 100644
index b69d529a730..00000000000
--- a/tests/language_2/map/literal5_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test the use of general expression as keys in map literals.
-
-library map_literal5_test;
-
-import "package:expect/expect.dart";
-
-void main() {
-  test(true);
-  test(false);
-}
-
-void test(bool b) {
-  var m = create(b);
-  Expect.equals(b, m.containsKey(true));
-  Expect.equals(b, m.containsKey(2));
-  Expect.equals(b, m.containsKey(1));
-  Expect.equals(!b, m.containsKey(false));
-  Expect.equals(!b, m.containsKey("bar"));
-  Expect.equals(!b, m.containsKey("foo"));
-  if (b) {
-    Expect.equals(0, m[true]);
-    Expect.equals(3, m[2]);
-    Expect.equals(2, m[1]);
-  } else {
-    Expect.equals(0, m[false]);
-    Expect.equals("baz", m["bar"]);
-    Expect.equals(2, m["foo"]);
-  }
-}
-
-Map create(bool b) {
-  return {
-    b: 0,
-    m(b): n(b),
-    b ? 1 : "foo": 2,
-  };
-}
-
-Object m(bool b) => b ? 2 : "bar";
-Object n(bool b) => b ? 3 : "baz";
diff --git a/tests/language_2/map/literal6_test.dart b/tests/language_2/map/literal6_test.dart
deleted file mode 100644
index 2eb2339b0c4..00000000000
--- a/tests/language_2/map/literal6_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test the use of general expression as keys in const map literals.
-
-library map_literal6_test;
-
-import "package:expect/expect.dart";
-
-class A {
-  const A();
-}
-
-class B {
-  final a;
-  const B(this.a);
-}
-
-void main() {
-  var m1 = const {
-    const A(): 0,
-    const B(1): 2,
-    const B(const A()): 3,
-    const B(0): 4,
-  };
-  Expect.isTrue(m1.containsKey(const A()));
-  Expect.isTrue(m1.containsKey(const B(0)));
-  Expect.isTrue(m1.containsKey(const B(1)));
-  Expect.isTrue(m1.containsKey(const B(const A())));
-  Expect.equals(0, m1[const A()]);
-  Expect.equals(4, m1[const B(0)]);
-  Expect.equals(2, m1[const B(1)]);
-  Expect.equals(3, m1[const B(const A())]);
-}
diff --git a/tests/language_2/map/literal7_test.dart b/tests/language_2/map/literal7_test.dart
deleted file mode 100644
index d366a6b38f6..00000000000
--- a/tests/language_2/map/literal7_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test the use type arguments on constant maps.
-
-library map_literal7_test;
-
-import "package:expect/expect.dart";
-
-void main() {
-  Map m1 = const {"0": 0, "1": 1};
-  Expect.isTrue(m1 is Map);
-  Expect.isFalse(m1 is Map<String, int>);
-  Expect.isFalse(m1 is Map<int, dynamic>);
-  Expect.isFalse(m1 is Map<dynamic, String>);
-
-  Map<String, int> m2 = const {"0": 0, "1": 1};
-  Expect.isTrue(m2 is Map);
-  Expect.isTrue(m2 is Map<String, int>);
-  Expect.isFalse(m2 is Map<int, dynamic>);
-  Expect.isFalse(m2 is Map<dynamic, String>);
-}
diff --git a/tests/language_2/map/literal8_test.dart b/tests/language_2/map/literal8_test.dart
deleted file mode 100644
index 649a2518cdb..00000000000
--- a/tests/language_2/map/literal8_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test the use of type arguments on const map literals using general expression
-// as keys.
-
-library map_literal8_test;
-
-import "package:expect/expect.dart";
-
-class A {
-  const A();
-}
-
-class B extends A {
-  final a;
-  const B(this.a);
-}
-
-void main() {
-  var m1 = const {
-    const A(): 0,
-    const B(0): 1,
-    const B(1): 2,
-    const B(const A()): 3,
-  };
-  Expect.isTrue(m1 is Map);
-  Expect.isTrue(m1 is Map<A, int>);
-  Expect.isFalse(m1 is Map<int, dynamic>);
-  Expect.isFalse(m1 is Map<dynamic, A>);
-
-  var m2 = const <A, int>{
-    const A(): 0,
-    const B(0): 1,
-    const B(1): 2,
-    const B(const A()): 3,
-  };
-  Expect.isTrue(m2 is Map);
-  Expect.isTrue(m2 is Map<A, int>);
-  Expect.isFalse(m2 is Map<int, dynamic>);
-  Expect.isFalse(m2 is Map<dynamic, A>);
-}
diff --git a/tests/language_2/map/literal9_test.dart b/tests/language_2/map/literal9_test.dart
deleted file mode 100644
index 8e9c37645ae..00000000000
--- a/tests/language_2/map/literal9_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test the use type arguments on constant maps.
-
-library map_literal9_test;
-
-import "package:expect/expect.dart";
-
-void main() {
-  var m1 = const {"[object Object]": 0, "1": 1};
-  Expect.isFalse(m1.containsKey(new Object()));
-  Expect.isNull(m1[new Object()]);
-  Expect.isFalse(m1.containsKey(1));
-  Expect.isNull(m1[1]);
-
-  var m2 = const {"[object Object]": 0, "1": 1, "__proto__": 2};
-  Expect.isFalse(m2.containsKey(new Object()));
-  Expect.isNull(m2[new Object()]);
-  Expect.isFalse(m2.containsKey(1));
-  Expect.isNull(m2[1]);
-}
diff --git a/tests/language_2/map/literal_syntax_test.dart b/tests/language_2/map/literal_syntax_test.dart
deleted file mode 100644
index 54e5141f3a2..00000000000
--- a/tests/language_2/map/literal_syntax_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Foo {
-  var x;
-  var y;
-  var z;
-  var v;
-  Foo()
-      : x = {},
-        y = <String, int>{},
-        z = const {},
-        v = const <String, int>{};
-}
-
-main() {
-  Expect.equals("{}", new Foo().x.toString());
-  Expect.equals("{}", new Foo().y.toString());
-  Expect.equals("{}", new Foo().z.toString());
-  Expect.equals("{}", new Foo().v.toString());
-}
diff --git a/tests/language_2/map/literal_test.dart b/tests/language_2/map/literal_test.dart
deleted file mode 100644
index ba1c3dcf125..00000000000
--- a/tests/language_2/map/literal_test.dart
+++ /dev/null
@@ -1,80 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Tests map literals.
-
-class MapLiteralTest {
-  MapLiteralTest() {}
-
-  static testMain() {
-    var test = new MapLiteralTest();
-    test.testStaticInit();
-    test.testConstInit();
-  }
-
-  testStaticInit() {
-    var testClass = new StaticInit();
-    testClass.test();
-  }
-
-  testConstInit() {
-    var testClass = new ConstInit();
-    testClass.test();
-  }
-
-  testLocalInit() {
-    // Test construction of static const map literals
-    var map1 = {"a": 1, "b": 2};
-    // Test construction of static const map literals, with numbers
-    var map2 = {"1": 1, "2": 2};
-
-    Expect.equals(1, map1["a"]);
-    Expect.equals(2, map1["b"]);
-
-    Expect.equals(1, map2["1"]);
-    Expect.equals(2, map2["2"]);
-  }
-}
-
-class StaticInit {
-  StaticInit() {}
-
-  // Test construction of static const map literals
-  static const map1 = const {"a": 1, "b": 2};
-  // Test construction of static const map literals, with numbers
-  static const map2 = const {"1": 1, "2": 2};
-
-  test() {
-    Expect.equals(1, map1["a"]);
-    Expect.equals(2, map1["b"]);
-
-    Expect.equals(1, map2["1"]);
-    Expect.equals(2, map2["2"]);
-  }
-}
-
-class ConstInit {
-  final map1;
-  final map2;
-
-  ConstInit()
-      : this.map1 = {"a": 1, "b": 2},
-        this.map2 = {"1": 1, "2": 2} {}
-
-  test() {
-    Expect.equals(1, map1["a"]);
-    Expect.equals(2, map1["b"]);
-
-    Expect.equals(1, map2["1"]);
-    Expect.equals(2, map2["2"]);
-  }
-}
-
-main() {
-  MapLiteralTest.testMain();
-}
diff --git a/tests/language_2/map/map_test.dart b/tests/language_2/map/map_test.dart
deleted file mode 100644
index 797572b56eb..00000000000
--- a/tests/language_2/map/map_test.dart
+++ /dev/null
@@ -1,224 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// A subtest of the larger MapTest. Will eliminate once the full
-// test is running.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class MapTest {
-  static void testDeletedElement(Map map) {
-    map.clear();
-    for (int i = 0; i < 100; i++) {
-      map[1] = 2;
-      Expect.equals(1, map.length);
-      int x = map.remove(1);
-      Expect.equals(2, x);
-      Expect.equals(0, map.length);
-    }
-    Expect.equals(0, map.length);
-    for (int i = 0; i < 100; i++) {
-      map[i] = 2;
-      Expect.equals(1, map.length);
-      int x = map.remove(105);
-      Expect.equals(null, x);
-      Expect.equals(1, map.length);
-      x = map.remove(i);
-      Expect.equals(2, x);
-      Expect.equals(0, map.length);
-    }
-    Expect.equals(0, map.length);
-    map.remove(105);
-  }
-
-  static void test(Map map) {
-    testDeletedElement(map);
-    testMap(map, 1, 2, 3, 4, 5, 6, 7, 8);
-    map.clear();
-    testMap(map, "value1", "value2", "value3", "value4", "value5", "value6",
-        "value7", "value8");
-  }
-
-  static void testMap(Map map, key1, key2, key3, key4, key5, key6, key7, key8) {
-    int value1 = 10;
-    int value2 = 20;
-    int value3 = 30;
-    int value4 = 40;
-    int value5 = 50;
-    int value6 = 60;
-    int value7 = 70;
-    int value8 = 80;
-
-    Expect.equals(0, map.length);
-
-    map[key1] = value1;
-    Expect.equals(value1, map[key1]);
-    map[key1] = value2;
-    Expect.equals(false, map.containsKey(key2));
-    Expect.equals(1, map.length);
-
-    map[key1] = value1;
-    Expect.equals(value1, map[key1]);
-    // Add enough entries to make sure the table grows.
-    map[key2] = value2;
-    Expect.equals(value2, map[key2]);
-    Expect.equals(2, map.length);
-    map[key3] = value3;
-    Expect.equals(value2, map[key2]);
-    Expect.equals(value3, map[key3]);
-    map[key4] = value4;
-    Expect.equals(value3, map[key3]);
-    Expect.equals(value4, map[key4]);
-    map[key5] = value5;
-    Expect.equals(value4, map[key4]);
-    Expect.equals(value5, map[key5]);
-    map[key6] = value6;
-    Expect.equals(value5, map[key5]);
-    Expect.equals(value6, map[key6]);
-    map[key7] = value7;
-    Expect.equals(value6, map[key6]);
-    Expect.equals(value7, map[key7]);
-    map[key8] = value8;
-    Expect.equals(value1, map[key1]);
-    Expect.equals(value2, map[key2]);
-    Expect.equals(value3, map[key3]);
-    Expect.equals(value4, map[key4]);
-    Expect.equals(value5, map[key5]);
-    Expect.equals(value6, map[key6]);
-    Expect.equals(value7, map[key7]);
-    Expect.equals(value8, map[key8]);
-    Expect.equals(8, map.length);
-
-    map.remove(key4);
-    Expect.equals(false, map.containsKey(key4));
-    Expect.equals(7, map.length);
-
-    // Test clearing the table.
-    map.clear();
-    Expect.equals(0, map.length);
-    Expect.equals(false, map.containsKey(key1));
-    Expect.equals(false, map.containsKey(key2));
-    Expect.equals(false, map.containsKey(key3));
-    Expect.equals(false, map.containsKey(key4));
-    Expect.equals(false, map.containsKey(key5));
-    Expect.equals(false, map.containsKey(key6));
-    Expect.equals(false, map.containsKey(key7));
-    Expect.equals(false, map.containsKey(key8));
-
-    // Test adding and removing again.
-    map[key1] = value1;
-    Expect.equals(value1, map[key1]);
-    Expect.equals(1, map.length);
-    map[key2] = value2;
-    Expect.equals(value2, map[key2]);
-    Expect.equals(2, map.length);
-    map[key3] = value3;
-    Expect.equals(value3, map[key3]);
-    map.remove(key3);
-    Expect.equals(2, map.length);
-    map[key4] = value4;
-    Expect.equals(value4, map[key4]);
-    map.remove(key4);
-    Expect.equals(2, map.length);
-    map[key5] = value5;
-    Expect.equals(value5, map[key5]);
-    map.remove(key5);
-    Expect.equals(2, map.length);
-    map[key6] = value6;
-    Expect.equals(value6, map[key6]);
-    map.remove(key6);
-    Expect.equals(2, map.length);
-    map[key7] = value7;
-    Expect.equals(value7, map[key7]);
-    map.remove(key7);
-    Expect.equals(2, map.length);
-    map[key8] = value8;
-    Expect.equals(value8, map[key8]);
-    map.remove(key8);
-    Expect.equals(2, map.length);
-
-    Expect.equals(true, map.containsKey(key1));
-    Expect.equals(true, map.containsValue(value1));
-
-    // Test Map.forEach.
-    Map other_map = new Map();
-    void testForEachMap(key, value) {
-      other_map[key] = value;
-    }
-
-    map.forEach(testForEachMap);
-    Expect.equals(true, other_map.containsKey(key1));
-    Expect.equals(true, other_map.containsKey(key2));
-    Expect.equals(true, other_map.containsValue(value1));
-    Expect.equals(true, other_map.containsValue(value2));
-    Expect.equals(2, other_map.length);
-
-    other_map.clear();
-    Expect.equals(0, other_map.length);
-
-    // Test Collection.keys.
-    void testForEachCollection(value) {
-      other_map[value] = value;
-    }
-
-    Iterable keys = map.keys;
-    keys.forEach(testForEachCollection);
-    Expect.equals(true, other_map.containsKey(key1));
-    Expect.equals(true, other_map.containsKey(key2));
-    Expect.equals(true, other_map.containsValue(key1));
-    Expect.equals(true, other_map.containsValue(key2));
-    Expect.equals(true, !other_map.containsKey(value1));
-    Expect.equals(true, !other_map.containsKey(value2));
-    Expect.equals(true, !other_map.containsValue(value1));
-    Expect.equals(true, !other_map.containsValue(value2));
-    Expect.equals(2, other_map.length);
-    other_map.clear();
-    Expect.equals(0, other_map.length);
-
-    // Test Collection.values.
-    Iterable values = map.values;
-    values.forEach(testForEachCollection);
-    Expect.equals(true, !other_map.containsKey(key1));
-    Expect.equals(true, !other_map.containsKey(key2));
-    Expect.equals(true, !other_map.containsValue(key1));
-    Expect.equals(true, !other_map.containsValue(key2));
-    Expect.equals(true, other_map.containsKey(value1));
-    Expect.equals(true, other_map.containsKey(value2));
-    Expect.equals(true, other_map.containsValue(value1));
-    Expect.equals(true, other_map.containsValue(value2));
-    Expect.equals(2, other_map.length);
-    other_map.clear();
-    Expect.equals(0, other_map.length);
-
-    // Test Map.putIfAbsent.
-    map.clear();
-    Expect.equals(false, map.containsKey(key1));
-    map.putIfAbsent(key1, () => 10);
-    Expect.equals(true, map.containsKey(key1));
-    Expect.equals(10, map[key1]);
-    Expect.equals(10, map.putIfAbsent(key1, () => 11));
-  }
-
-  static testKeys(Map map) {
-    map[1] = 101;
-    map[2] = 102;
-    Iterable k = map.keys;
-    Expect.equals(2, k.length);
-    Iterable v = map.values;
-    Expect.equals(2, v.length);
-    Expect.equals(true, map.containsValue(101));
-    Expect.equals(true, map.containsValue(102));
-    Expect.equals(false, map.containsValue(103));
-  }
-
-  static testMain() {
-    test(new Map());
-    testKeys(new Map());
-  }
-}
-
-main() {
-  MapTest.testMain();
-}
diff --git a/tests/language_2/map/null_key_foreach_test.dart b/tests/language_2/map/null_key_foreach_test.dart
deleted file mode 100644
index a8ea1860a20..00000000000
--- a/tests/language_2/map/null_key_foreach_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Regression test for using `null` as a key with `forEach`.
-
-main() {
-  var x = new Map<int, int>();
-  x[1] = 2;
-  x[null] = 1;
-  int c = 0;
-  x.forEach((int i, int j) {
-    c++;
-    Expect.isTrue(i == null || i is int, 'int or null expected');
-  });
-  Expect.equals(2, c);
-}
diff --git a/tests/language_2/map/ordered_test.dart b/tests/language_2/map/ordered_test.dart
deleted file mode 100644
index 0678d1add09..00000000000
--- a/tests/language_2/map/ordered_test.dart
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Tests that map literals are ordered.
-
-class OrderedMapsTest {
-  static testMain() {
-    testMaps(const {"a": 1, "c": 2}, const {"c": 2, "a": 1}, true);
-    testMaps({"a": 1, "c": 2}, {"c": 2, "a": 1}, false);
-  }
-
-  static void testMaps(map1, map2, bool isConst) {
-    Expect.isFalse(identical(map1, map2));
-
-    var keys = map1.keys.toList();
-    Expect.equals(2, keys.length);
-    Expect.equals("a", keys[0]);
-    Expect.equals("c", keys[1]);
-
-    keys = map2.keys.toList();
-    Expect.equals(2, keys.length);
-    Expect.equals("c", keys[0]);
-    Expect.equals("a", keys[1]);
-
-    var values = map1.values.toList();
-    Expect.equals(2, values.length);
-    Expect.equals(1, values[0]);
-    Expect.equals(2, values[1]);
-
-    values = map2.values.toList();
-    Expect.equals(2, values.length);
-    Expect.equals(2, values[0]);
-    Expect.equals(1, values[1]);
-
-    if (isConst) return;
-
-    map1["b"] = 3;
-    map2["b"] = 3;
-
-    keys = map1.keys.toList();
-    Expect.equals(3, keys.length);
-    Expect.equals("a", keys[0]);
-    Expect.equals("c", keys[1]);
-    Expect.equals("b", keys[2]);
-
-    keys = map2.keys.toList();
-    Expect.equals(3, keys.length);
-    Expect.equals("c", keys[0]);
-    Expect.equals("a", keys[1]);
-    Expect.equals("b", keys[2]);
-
-    values = map1.values.toList();
-    Expect.equals(3, values.length);
-    Expect.equals(1, values[0]);
-    Expect.equals(2, values[1]);
-    Expect.equals(3, values[2]);
-
-    values = map2.values.toList();
-    Expect.equals(3, values.length);
-    Expect.equals(2, values[0]);
-    Expect.equals(1, values[1]);
-    Expect.equals(3, values[2]);
-
-    map1["a"] = 4;
-    keys = map1.keys.toList();
-    Expect.equals(3, keys.length);
-    Expect.equals("a", keys[0]);
-
-    values = map1.values.toList();
-    Expect.equals(3, values.length);
-    Expect.equals(4, values[0]);
-  }
-}
-
-main() {
-  OrderedMapsTest.testMain();
-}
diff --git a/tests/language_2/metadata/cyclic_test.dart b/tests/language_2/metadata/cyclic_test.dart
deleted file mode 100644
index d120e84c436..00000000000
--- a/tests/language_2/metadata/cyclic_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that metadata on a class 'Super' using subtypes of 'Super' are not
-// considered as cyclic inheritance or lead to crashes.
-
-@Sub1(0) //# 01: ok
-class Super {
-  final field;
-  @Sub2(1) //# 02: ok
-  const Super(this.field);
-}
-
-class Sub1 extends Super {
-  const Sub1(var field) : super(field);
-}
-
-class Sub2 extends Super {
-  const Sub2(var field) : super(field);
-}
-
-void main() {
-  print(new Super(1));
-}
diff --git a/tests/language_2/metadata/lib.dart b/tests/language_2/metadata/lib.dart
deleted file mode 100644
index 3b05b6b2c0e..00000000000
--- a/tests/language_2/metadata/lib.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library metadata.dart;
-
-class Alien {
-  final String qwrrkz;
-  const Alien(this.qwrrkz);
-  const Alien.unknown() : qwrrkz = "???";
-}
-
-const Klingon = const Alien("Klingon");
diff --git a/tests/language_2/metadata/metadata_builtin_test.dart b/tests/language_2/metadata/metadata_builtin_test.dart
deleted file mode 100644
index acba9821795..00000000000
--- a/tests/language_2/metadata/metadata_builtin_test.dart
+++ /dev/null
@@ -1,117 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that built-in identifiers can be used to specify metadata.
-
-const abstract = 0;
-const as = 0;
-const covariant = 0;
-const deferred = 0;
-const dynamic = 0;
-const export = 0;
-const external = 0;
-const factory = 0;
-const Function = 0;
-const get = 0;
-const implements = 0;
-const import = 0;
-const interface = 0;
-const library = 0;
-const mixin = 0;
-const operator = 0;
-const part = 0;
-const set = 0;
-const static = 0;
-const typedef = 0;
-
-@abstract
-@as
-@covariant
-@deferred
-@dynamic
-@export
-@external
-@factory
-@Function
-@get
-@implements
-@import
-@interface
-@library
-@mixin
-@operator
-@part
-@set
-@static
-@typedef
-void main(
-  @abstract
-  @as
-  @covariant
-  @deferred
-  @dynamic
-  @export
-  @external
-  @factory
-  @Function
-  @get
-  @implements
-  @import
-  @interface
-  @library
-  @mixin
-  @operator
-  @part
-  @set
-  @static
-  @typedef
-      List<String> args,
-) {
-  @abstract
-  @as
-  @covariant
-  @deferred
-  @dynamic
-  @export
-  @external
-  @factory
-  @Function
-  @get
-  @implements
-  @import
-  @interface
-  @library
-  @mixin
-  @operator
-  @part
-  @set
-  @static
-  @typedef
-  var x = true;
-
-  void f<
-      @abstract
-      @as
-      @covariant
-      @deferred
-      @dynamic
-      @export
-      @external
-      @factory
-      @Function
-      @get
-      @implements
-      @import
-      @interface
-      @library
-      @mixin
-      @operator
-      @part
-      @set
-      @static
-      @typedef
-          X>() {}
-}
diff --git a/tests/language_2/metadata/metadata_test.dart b/tests/language_2/metadata/metadata_test.dart
deleted file mode 100644
index 468c4f61f30..00000000000
--- a/tests/language_2/metadata/metadata_test.dart
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test ensuring that compiler can parse metadata. Need to add negative
-// test cases with illegal metadata annotations.
-
-library metadata_test.dart;
-
-import "package:expect/expect.dart";
-import "lib.dart" as Meta;
-
-class Tag {
-  final String annotation;
-  const Tag(this.annotation);
-}
-
-const meta1 = 1;
-const meta2 = const Tag("meta2");
-
-const extern = const Tag("external");
-
-@meta1
-var topLevelVar;
-@Meta.Alien.unknown()
-List unknownUnknowns;
-
-@meta1
-typedef int DingDong<@meta2 T>(@meta1 event);
-
-@meta1
-class A<@Tag("typeParam") T> {
-  @meta1
-  @meta2
-  static String staticField;
-
-  @Meta.Alien("ET")
-  int foo(@meta1 bool fool, {@meta1 @Tag("opt") x: 100}) {
-    g() => 10;
-    return x * g();
-  }
-
-  @Tag(r"timewarp")
-  List<int> getNextWeeksLottoNumbers() => [1, 2, 3, 4, 5, 6];
-}
-
-@meta1
-main() {
-  @meta1
-  var a = new A();
-  Expect.equals(0, a.foo(false, x: 0));
-
-  for (@Tag("loopvar")
-  int i = 0;
-      i < 10;
-      i++) {
-    // Do something.
-  }
-
-  @meta1
-  var s = r'This is a raw \\ string.';
-}
diff --git a/tests/language_2/metadata/scope1_test.dart b/tests/language_2/metadata/scope1_test.dart
deleted file mode 100644
index 9ee34d455ce..00000000000
--- a/tests/language_2/metadata/scope1_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that a type variable is not in scope for metadata declared on the type
-// declaration.
-
-@deprecated
-typedef Foo
-<deprecated> // //# 01: ok
-    ();
-
-main() {
-  Foo f = null;
-}
diff --git a/tests/language_2/metadata/scope2_test.dart b/tests/language_2/metadata/scope2_test.dart
deleted file mode 100644
index 4afea25011d..00000000000
--- a/tests/language_2/metadata/scope2_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that a type variable is not in scope for metadata declared on the type
-// declaration.
-
-@deprecated
-class Foo
-<deprecated> // //# 01: ok
-{}
-
-main() {
-  Foo f = null;
-}
diff --git a/tests/language_2/metadata/self_test.dart b/tests/language_2/metadata/self_test.dart
deleted file mode 100644
index 4185d5c2103..00000000000
--- a/tests/language_2/metadata/self_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that metadata refer to the annotated declaration.
-
-@Foo()
-class Foo {
-  const Foo();
-}
-
-main() {
-  Foo f = const Foo();
-}
diff --git a/tests/language_2/metadata/type_parameter_scope_inner_test.dart b/tests/language_2/metadata/type_parameter_scope_inner_test.dart
deleted file mode 100644
index d88c1248451..00000000000
--- a/tests/language_2/metadata/type_parameter_scope_inner_test.dart
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that metadata on a type parameter cannot refer to declarations in an
-// inner scope.  See https://github.com/dart-lang/language/issues/1790.
-
-class Annotation {
-  const Annotation(dynamic d);
-}
-
-class Class<@Annotation(foo) T> {
-//                      ^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_WITH_NON_CONSTANT_ARGUMENT
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-// [cfe] Undefined name 'foo'.
-  static void foo() {}
-}
-
-void function<@Annotation(foo) T>(dynamic foo) {
-//                        ^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_WITH_NON_CONSTANT_ARGUMENT
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-// [cfe] Undefined name 'foo'.
-  dynamic foo;
-}
-
-extension Extension<@Annotation(foo) T> on Class<T> {
-//                              ^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_WITH_NON_CONSTANT_ARGUMENT
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-// [cfe] Undefined name 'foo'.
-  static void foo() {}
-
-  void extensionMethod<@Annotation(foo) T, @Annotation(bar) U>() {}
-  //                                                   ^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_WITH_NON_CONSTANT_ARGUMENT
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-  // [cfe] Undefined name 'bar'.
-}
-
-class C {
-  void method<@Annotation(foo) T, @Annotation(bar) U>(dynamic foo) {
-  //                      ^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_WITH_NON_CONSTANT_ARGUMENT
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-  // [cfe] Undefined name 'foo'.
-    dynamic foo;
-  }
-
-  static void bar() {}
-}
-
-mixin Mixin<@Annotation(foo) T> {
-//                      ^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_WITH_NON_CONSTANT_ARGUMENT
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-// [cfe] Undefined name 'foo'.
-  static void foo() {}
-}
-
-typedef Typedef<@Annotation(foo) T> = void Function<foo>();
-//                          ^^^
-// [analyzer] COMPILE_TIME_ERROR.CONST_WITH_NON_CONSTANT_ARGUMENT
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-// [cfe] Undefined name 'foo'.
diff --git a/tests/language_2/metadata/type_parameter_scope_other_test.dart b/tests/language_2/metadata/type_parameter_scope_other_test.dart
deleted file mode 100644
index f2aa95c0d7a..00000000000
--- a/tests/language_2/metadata/type_parameter_scope_other_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that identifiers in type parameter metadata can refer to other type
-// parameters in the same declaration; they are in scope and take precedence
-// over top level declarations, even if this leads to compile errors.
-
-/// Top level declaration of T; nothing should resolve to this.
-void T() {}
-
-class Annotation {
-  const Annotation(dynamic d);
-}
-
-class Class<T, @Annotation(T) U> {}
-//                         ^
-// [analyzer] COMPILE_TIME_ERROR.CONST_TYPE_PARAMETER
-// [cfe] Type variables can't be used as constants.
-
-void function<T, @Annotation(T) U>() {}
-//                           ^
-// [analyzer] COMPILE_TIME_ERROR.CONST_TYPE_PARAMETER
-// [cfe] Type variables can't be used as constants.
-
-extension Extension<T, @Annotation(T) U> on Map<T, U> {}
-//                                 ^
-// [analyzer] COMPILE_TIME_ERROR.CONST_TYPE_PARAMETER
-// [cfe] Type variables can't be used as constants.
-
-class C {
-  void method<T, @Annotation(T) U>() {}
-  //                         ^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_TYPE_PARAMETER
-  // [cfe] Type variables can't be used as constants.
-}
-
-mixin Mixin<T, @Annotation(T) U> {}
-//                         ^
-// [analyzer] COMPILE_TIME_ERROR.CONST_TYPE_PARAMETER
-// [cfe] Type variables can't be used as constants.
-
-typedef void Typedef1<T, @Annotation(T) U>(T t, U u);
-//                                   ^
-// [analyzer] COMPILE_TIME_ERROR.CONST_TYPE_PARAMETER
-// [cfe] Type variables can't be used as constants.
-
-typedef Typedef2<T, @Annotation(T) U> = void Function(T t, U u);
-//                              ^
-// [analyzer] COMPILE_TIME_ERROR.CONST_TYPE_PARAMETER
-// [cfe] Type variables can't be used as constants.
diff --git a/tests/language_2/method/as_constants2_test.dart b/tests/language_2/method/as_constants2_test.dart
deleted file mode 100644
index 2b5121fbb0d..00000000000
--- a/tests/language_2/method/as_constants2_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test that a function only used by compile-time constants is being
-// generated.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-topLevelMethod() => 42;
-
-class A {
-  final Function f;
-  const A(this.f);
-}
-
-main() {
-  Expect.equals(42, const A(topLevelMethod).f());
-}
diff --git a/tests/language_2/method/as_constants_test.dart b/tests/language_2/method/as_constants_test.dart
deleted file mode 100644
index ed313133ea5..00000000000
--- a/tests/language_2/method/as_constants_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-topLevelMethod() => 't';
-
-const topLevelFieldForTopLevelMethod = topLevelMethod;
-const topLevelFieldForStaticMethod = A.staticMethod;
-
-class A {
-  final Function closure;
-  const A(this.closure);
-  const A.defaultTopLevel([this.closure = topLevelMethod]);
-  const A.defaultStatic([this.closure = staticMethod]);
-  const A.defaultStatic2([this.closure = A.staticMethod]);
-  run() => closure();
-
-  static staticMethod() => 's';
-  static const staticFieldForStaticMethod = staticMethod;
-  static const staticFieldForTopLevelMethod = topLevelMethod;
-}
-
-main() {
-  Expect.equals('t', (const A(topLevelMethod)).run());
-  Expect.equals('s', (const A(A.staticMethod)).run());
-  Expect.equals('t', (const A.defaultTopLevel()).run());
-  Expect.equals('s', (const A.defaultStatic()).run());
-  Expect.equals('s', (const A.defaultStatic2()).run());
-  Expect.equals('t', (new A.defaultTopLevel()).run());
-  Expect.equals('s', (new A.defaultStatic()).run());
-  Expect.equals('s', (new A.defaultStatic2()).run());
-  Expect.equals('t', topLevelFieldForTopLevelMethod());
-  Expect.equals('s', topLevelFieldForStaticMethod());
-  Expect.equals('t', A.staticFieldForTopLevelMethod());
-  Expect.equals('s', A.staticFieldForStaticMethod());
-
-  var map = const {'t': topLevelMethod, 's': A.staticMethod};
-  Expect.equals('t', map['t']());
-  Expect.equals('s', map['s']());
-}
diff --git a/tests/language_2/method/binding_test.dart b/tests/language_2/method/binding_test.dart
deleted file mode 100644
index 6f708de15a1..00000000000
--- a/tests/language_2/method/binding_test.dart
+++ /dev/null
@@ -1,176 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Bind a method to a variable that can be invoked as a function
-
-class A {
-  int a;
-
-  static var func;
-
-  A(this.a) {}
-
-  static foo() {
-    return 4;
-  }
-
-  bar() {
-    return a;
-  }
-
-  int baz() {
-    return a;
-  }
-
-  getThis() {
-    return this.bar;
-  }
-
-  getNoThis() {
-    return bar;
-  }
-
-  methodArgs(arg) {
-    return arg + a;
-  }
-
-  selfReference() {
-    return selfReference;
-  }
-
-  invokeBaz() {
-    return (baz)();
-  }
-
-  invokeBar(var obj) {
-    return (obj.bar)();
-  }
-
-  invokeThisBar() {
-    return (this.bar)();
-  }
-
-  implicitStaticRef() {
-    return foo;
-  }
-}
-
-class B {
-  static foo() {
-    return -1;
-  }
-}
-
-class C {
-  C() {}
-  var f;
-}
-
-topLevel99() {
-  return 99;
-}
-
-var topFunc;
-
-class D extends A {
-  D(a) : super(a) {}
-  getSuper() {
-    return super.bar;
-  }
-}
-
-class MethodBindingTest {
-  static test() {
-    // Create closure from global
-    Expect.equals(99, topLevel99());
-    Function f99 = topLevel99;
-    Expect.equals(99, f99());
-
-    // Invoke closure through a global
-    topFunc = f99;
-    Expect.equals(99, topFunc());
-
-    // Create closure from static method
-    Function f4 = A.foo;
-    Expect.equals(4, f4());
-
-    // Create closure from instance method
-    var o5 = new A(5);
-    Function f5 = o5.bar;
-    Expect.equals(5, f5());
-
-    // Assign closure to field and invoke it
-    var c = new C();
-    c.f = () => "success";
-    Expect.equals("success", c.f());
-
-    // referencing instance method with explicit 'this' qualifier
-    var o6 = new A(6);
-    var f6 = o6.getThis();
-    Expect.equals(6, f6());
-
-    // referencing an instance method with no qualifier
-    var o7 = new A(7);
-    var f7 = o7.getNoThis();
-    Expect.equals(7, f7());
-
-    // bind a method that takes arguments
-    var o8 = new A(8);
-    Function f8 = o8.methodArgs;
-    Expect.equals(9, f8(1));
-
-    // Self referential method
-    var o9 = new A(9);
-    Function f9 = o9.selfReference;
-
-    // invoking a known method as if it were a bound closure...
-    var o10 = new A(10);
-    Expect.equals(10, o10.invokeBaz());
-
-    // invoking a known method as if it were a bound closure...
-    var o11 = new A(11);
-    Expect.equals(10, o11.invokeBar(o10));
-
-    // invoking a known method as if it were a bound closure...
-    var o12 = new A(12);
-    Expect.equals(12, o12.invokeThisBar());
-
-    // bind to a static variable with no explicit class qualifier
-    var o13 = new A(13);
-    Function f13 = o13.implicitStaticRef();
-    Expect.equals(4, f13());
-
-    var o14 = new D(14);
-    Function f14 = o14.getSuper();
-    Expect.equals(14, f14());
-
-    // Assign static field to a function and invoke it.
-    A.func = A.foo;
-    Expect.equals(4, A.func());
-
-    // bind a function that is possibly native in JavaScript.
-    String o15 = 'hithere';
-    var f15 = o15.substring;
-    Expect.equals('i', f15(1, 2));
-
-    var o16 = 'hithere';
-    var f16 = o16.substring;
-    Expect.equals('i', f16(1, 2));
-
-    var f17 = 'hithere'.substring;
-    Expect.equals('i', f17(1, 2));
-  }
-
-  static testMain() {
-    test();
-  }
-}
-
-main() {
-  MethodBindingTest.testMain();
-}
diff --git a/tests/language_2/method/invocation_test.dart b/tests/language_2/method/invocation_test.dart
deleted file mode 100644
index 8ba25abbd8a..00000000000
--- a/tests/language_2/method/invocation_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Testing method invocation.
-// Currently testing only NoSuchMethodError.
-
-class A {
-  A() {}
-  int foo() {
-    return 1;
-  }
-}
-
-class B {
-  get f {
-    throw 123;
-  }
-}
-
-class MethodInvocationTest {
-  static void testNullReceiver() {
-    A a = new A();
-    Expect.equals(1, a.foo());
-    a = null;
-    bool exceptionCaught = false;
-    try {
-      a.foo();
-    } on NoSuchMethodError catch (e) {
-      exceptionCaught = true;
-    }
-    Expect.equals(true, exceptionCaught);
-  }
-
-  static testGetterMethodInvocation() {
-    var b = new B();
-    try {
-      b.f();
-    } catch (e) {
-      Expect.equals(123, e);
-    }
-  }
-
-  static void testMain() {
-    testNullReceiver();
-    testGetterMethodInvocation();
-  }
-}
-
-main() {
-  MethodInvocationTest.testMain();
-}
diff --git a/tests/language_2/method/name_test.dart b/tests/language_2/method/name_test.dart
deleted file mode 100644
index f9cd04ec964..00000000000
--- a/tests/language_2/method/name_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Tests that methods with names "get", "set" and "operator" don't
-// cause fatal problems.
-
-// With return type.
-class A {
-  int get() {
-    return 1;
-  }
-
-  int set() {
-    return 2;
-  }
-
-  int operator() {
-    return 3;
-  }
-}
-
-// Without return types.
-class B {
-  get() {
-    return 1;
-  }
-
-  set() {
-    return 2;
-  }
-
-  operator() {
-    return 3;
-  }
-}
-
-main() {
-  {
-    A a = new A();
-    Expect.equals(1, a.get());
-    Expect.equals(2, a.set());
-    Expect.equals(3, a.operator());
-  }
-  {
-    B b = new B();
-    Expect.equals(1, b.get());
-    Expect.equals(2, b.set());
-    Expect.equals(3, b.operator());
-  }
-}
diff --git a/tests/language_2/method/not_found_runtime_test.dart b/tests/language_2/method/not_found_runtime_test.dart
deleted file mode 100644
index cce2881cbf3..00000000000
--- a/tests/language_2/method/not_found_runtime_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class A {
-
-  static const field = const B();
-}
-
-class B {
-  const B();
-}
-
-main() {
-  print(A.field);
-}
diff --git a/tests/language_2/method/not_found_test.dart b/tests/language_2/method/not_found_test.dart
deleted file mode 100644
index 32337be6adb..00000000000
--- a/tests/language_2/method/not_found_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-//    ^
-// [cfe] The non-abstract class 'A' is missing implementations for these members:
-  B();
-//^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONCRETE_CLASS_WITH_ABSTRACT_MEMBER
-  static const field = const B();
-  //                   ^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
-  //                         ^
-  // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-  // [cfe] Can't access 'this' in a field initializer to read 'B'.
-  // [cfe] Couldn't find constructor 'B'.
-}
-
-class B {
-  const B();
-}
-
-main() {
-  print(A.field);
-}
diff --git a/tests/language_2/method/override2_test.dart b/tests/language_2/method/override2_test.dart
deleted file mode 100644
index 740fefc18cc..00000000000
--- a/tests/language_2/method/override2_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Checks that an overriding method has compatible parameters.
-
-abstract class I {
-  m({a, b});
-}
-
-abstract class J extends I {}
-
-abstract class K extends J {
-  m({c, d}); // //# 00: compile-time error
-}
-
-class C implements I {
-  m({a, b}) {
-    print("$a $b");
-  }
-}
-
-class D
-    extends C // //# 01: compile-time error
-    implements I // //# 02: compile-time error
-    implements J // //# 03: compile-time error
-{
-  m({c, d}) {
-    print("$c $d");
-  }
-}
-
-int main() {
-  var c = new C();
-  c.m(a: "hello", b: "world");
-  var d = new D();
-  d.m(c: "hello", d: "world");
-}
diff --git a/tests/language_2/method/override3_runtime_test.dart b/tests/language_2/method/override3_runtime_test.dart
deleted file mode 100644
index 448bbed5de6..00000000000
--- a/tests/language_2/method/override3_runtime_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-class A {
-  foo(required1, {named1: 499}) => -(required1 + named1 * 3);
-  bar(required1, required2, {named1: 13, named2: 17}) =>
-      -(required1 + required2 * 3 + named1 * 5 + named2 * 7);
-  gee({named1: 31}) => -named1;
-}
-
-class B extends A {
-  foo(
-      required1
-
-      ,
-      {named1: 499}
-
-      ) {
-    return required1;
-  }
-
-  bar(required1, required2,
-      {named1: 13
-
-      ,
-      named2: 17
-
-      }) {
-    return required1 + required2 * 3 + named1 * 5;
-  }
-
-  gee(
-      {named2: 11
-
-      ,
-      named1: 31
-
-      }) {
-    return named2 * 99;
-  }
-}
-
-main() {
-  // Ensure that compile-time errors are reached.
-  var b = new B();
-  b.foo(499);
-  b.bar(1, 3, named1: 5);
-  b.gee(named2: 3);
-}
diff --git a/tests/language_2/method/override3_test.dart b/tests/language_2/method/override3_test.dart
deleted file mode 100644
index faf298aadf3..00000000000
--- a/tests/language_2/method/override3_test.dart
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class A {
-  foo(required1, {named1: 499}) => -(required1 + named1 * 3);
-  bar(required1, required2, {named1: 13, named2: 17}) =>
-      -(required1 + required2 * 3 + named1 * 5 + named2 * 7);
-  gee({named1: 31}) => -named1;
-}
-
-class B extends A {
-  foo(
-//^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-// [cfe] The method 'B.foo' has fewer named arguments than those of overridden method 'A.foo'.
-      required1
-     /*
-      ,
-      {named1: 499}
-     */
-      ) {
-    return required1;
-  }
-
-  bar(required1, required2,
-//^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-// [cfe] The method 'B.bar' has fewer named arguments than those of overridden method 'A.bar'.
-      {named1: 13
-      /*
-      ,
-      named2: 17
-      */
-      }) {
-    return required1 + required2 * 3 + named1 * 5;
-  }
-
-  gee(
-//^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-// [cfe] The method 'B.gee' doesn't have the named parameter 'named1' of overridden method 'A.gee'.
-      {named2: 11
-      /*
-      ,
-      named1: 31
-      */
-      }) {
-    return named2 * 99;
-  }
-}
-
-main() {
-  // Ensure that compile-time errors are reached.
-  var b = new B();
-  b.foo(499);
-  b.bar(1, 3, named1: 5);
-  b.gee(named2: 3);
-}
diff --git a/tests/language_2/method/override7_test.dart b/tests/language_2/method/override7_test.dart
deleted file mode 100644
index 23c6565c80f..00000000000
--- a/tests/language_2/method/override7_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that we report a compile-time error when a static function conflicts
-// with an inherited instance member of the same name.
-
-import "package:expect/expect.dart";
-
-class A {
-  var foo = 42; // //# 00: compile-time error
-  get foo => 42; // //# 01: compile-time error
-  foo() => 42; // //# 02: compile-time error
-  set foo(value) { } // //# 03: compile-time error
-}
-
-class B extends A {
-  static foo() => 42;
-}
-
-main() {
-  Expect.equals(42, B.foo());
-}
diff --git a/tests/language_2/method/override8_test.dart b/tests/language_2/method/override8_test.dart
deleted file mode 100644
index e67065af5bc..00000000000
--- a/tests/language_2/method/override8_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that we report a compile-time error when an instance method conflicts
-// with an inherited instance field or getter of the same name.
-
-import "package:expect/expect.dart";
-
-class A {
-  var foo = 42; // //# 00: compile-time error
-  get foo => 42; // //# 01: compile-time error
-  foo() => 42; // //# 02: ok
-  set foo(value) { } // //# 03: compile-time error
-}
-
-class B extends A {
-  foo() => 42;
-}
-
-main() {
-  Expect.equals(42, new B().foo());
-}
diff --git a/tests/language_2/method/override_test.dart b/tests/language_2/method/override_test.dart
deleted file mode 100644
index 898a2761c0d..00000000000
--- a/tests/language_2/method/override_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Checks that a method with an instantiated return type can override a method
-// with a generic return type.
-
-typedef V RemoveFunctionType<K, V>(K key);
-
-class MapBase<K, V> {
-  K remove(K key) {
-    throw 'Must be implemented';
-  }
-
-  void tests() {
-    Expect.isTrue(this is MapBase<int, int>);
-
-    // `remove` takes an argument which is covariant-by-class, so
-    // the tear-off has dynamic type `int Function(Object)`.
-
-    Expect.isTrue(remove is RemoveFunctionType);
-    Expect.isTrue(remove is RemoveFunctionType<int, int>);
-    Expect.isTrue(remove is RemoveFunctionType<String, int>);
-    Expect.isTrue(remove is RemoveFunctionType<MapBase<int, int>, int>);
-  }
-}
-
-class MethodOverrideTest extends MapBase<String, String> {
-  String remove(String key) {
-    throw 'Must be implemented';
-  }
-
-  void tests() {
-    Expect.isTrue(this is MethodOverrideTest);
-    Expect.isTrue(this is MapBase<String, String>);
-
-    // `remove` takes an argument which is covariant-by-class because
-    // an overridden method does so, and hence the tear-off has dynamic
-    // type `String Function(Object)`; so does `super.remove`.
-
-    Expect.isTrue(remove is RemoveFunctionType);
-    Expect.isTrue(remove is RemoveFunctionType<String, String>);
-    Expect.isTrue(remove is! RemoveFunctionType<int, int>);
-    Expect.isTrue(super.remove is RemoveFunctionType);
-    Expect.isTrue(super.remove is RemoveFunctionType<String, String>);
-    Expect.isTrue(super.remove is! RemoveFunctionType<int, int>);
-  }
-}
-
-main() {
-  new MapBase<int, int>().tests();
-  new MethodOverrideTest().tests();
-}
diff --git a/tests/language_2/mixin/abstract_getter_test.dart b/tests/language_2/mixin/abstract_getter_test.dart
deleted file mode 100644
index 55c4d039e71..00000000000
--- a/tests/language_2/mixin/abstract_getter_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-abstract class B {
-  int get x;
-}
-
-class C {
-  int get x => 42;
-}
-
-class D extends C with B {
-  final int x;
-
-  D(this.x);
-}
-
-class C2 {
-  int get x => 42;
-}
-
-abstract class B2 extends C2 {
-  int get x;
-}
-
-class D2 extends B2 {
-  final int x;
-
-  D2(this.x);
-}
-
-void main() {
-  var d = new D(17);
-  Expect.equals(d.x, 17);
-
-  var d2 = new D2(17);
-  Expect.equals(d.x, 17);
-}
diff --git a/tests/language_2/mixin/accessor_test.dart b/tests/language_2/mixin/accessor_test.dart
deleted file mode 100644
index ddad1fbf301..00000000000
--- a/tests/language_2/mixin/accessor_test.dart
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test case for DDC bug where if a getter/setter is mixed in
-// without a corresponding getter/setter, DDC fails to install a the
-// corresponding getter/setter that calls super.
-
-import "package:expect/expect.dart";
-
-abstract class C<E> {
-  E get first;
-  set first(E value);
-  E operator [](int index);
-  operator []=(int index, E value);
-}
-
-abstract class CMixin<E> implements C<E> {
-  E get first => this[0];
-  set first(E x) {
-    this[0] = x;
-  }
-}
-
-abstract class CBase<E> extends Object with CMixin<E> {}
-
-abstract class DMixin<E> implements C<E> {
-  set first(E _) => throw new UnsupportedError('');
-  operator []=(int index, E value) => throw new UnsupportedError('');
-}
-
-abstract class DBase<E> = CBase<E> with DMixin<E>;
-
-class DView<E> extends DBase<E> {
-  final Iterable<E> _source;
-  DView(this._source);
-  E operator [](int index) => _source.elementAt(index);
-}
-
-abstract class FMixin<E> implements C<E> {
-  E get first => throw new UnsupportedError('');
-  E operator [](int index) => throw new UnsupportedError('');
-}
-
-class FView<E> extends CBase<E> with FMixin<E> {
-  List<E> _values;
-  FView(this._values);
-  operator []=(int index, E value) {
-    _values[index] = value;
-  }
-}
-
-void main() {
-  var d = new DView([3]);
-  Expect.equals(3, d.first);
-  Expect.throws(() => d.first = 42, (e) => e is UnsupportedError);
-
-  var list = [3];
-  var f = new FView(list);
-  f.first = 42;
-  Expect.equals(42, list[0]);
-  Expect.throws(() => f.first, (e) => e is UnsupportedError);
-}
diff --git a/tests/language_2/mixin/and_extension_member_test.dart b/tests/language_2/mixin/and_extension_member_test.dart
deleted file mode 100644
index e8d29f16f5b..00000000000
--- a/tests/language_2/mixin/and_extension_member_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:collection';
-import 'package:expect/expect.dart';
-
-class OverrideFirstGetter {
-  get first => 9999;
-}
-
-class ListMock extends ListBase with OverrideFirstGetter {
-  final _list = [];
-  int get length => _list.length;
-  void set length(int x) {
-    _list.length = x;
-  }
-
-  operator [](x) => _list[x];
-  void operator []=(x, y) {
-    _list[x] = y;
-  }
-}
-
-// Regression test for
-// https://github.com/dart-lang/sdk/issues/29273#issuecomment-292384130
-main() {
-  List x = new ListMock();
-  x.add(42);
-  Expect.equals(42, x[0]);
-  Expect.equals(9999, x.first);
-}
diff --git a/tests/language_2/mixin/black_listed_test.dart b/tests/language_2/mixin/black_listed_test.dart
deleted file mode 100644
index 47a79992810..00000000000
--- a/tests/language_2/mixin/black_listed_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check mixin of black-listed types.
-
-import 'package:expect/expect.dart';
-
-class C {}
-
-class D {}
-
-class C1 extends Object
-with String //# 01: compile-time error
-{}
-
-class D1 extends Object with C
-, Null //# 02: compile-time error
-{}
-
-class E1 extends Object
-    with
-int, //# 03: compile-time error
-        C {}
-
-class F1 extends Object
-    with
-        C
-, double //# 04: compile-time error
-        ,
-        D {}
-
-class C2 = Object with num; //# 05: compile-time error
-
-class D2 = Object with C
-, bool //# 06: compile-time error
-    ;
-
-class E2 = Object
-    with
-String, //# 07: compile-time error
-        C;
-
-class F2 = Object
-    with
-        C,
-dynamic, //# 08: compile-time error
-        D;
-
-main() {
-  Expect.isNotNull(new C1());
-  Expect.isNotNull(new D1());
-  Expect.isNotNull(new E1());
-  Expect.isNotNull(new F1());
-  Expect.isNotNull(new C2()); //# 05: continued
-  Expect.isNotNull(new D2());
-  Expect.isNotNull(new E2());
-  Expect.isNotNull(new F2());
-}
diff --git a/tests/language_2/mixin/bound_test.dart b/tests/language_2/mixin/bound_test.dart
deleted file mode 100644
index aeb5fdad2cf..00000000000
--- a/tests/language_2/mixin/bound_test.dart
+++ /dev/null
@@ -1,135 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// library abstract_expressions;
-
-abstract class AbstractExpression {}
-
-abstract class AbstractAddition<E> {
-  E operand1, operand2;
-  AbstractAddition(this.operand1, this.operand2);
-}
-
-abstract class AbstractSubtraction<E> {
-  E operand1, operand2;
-  AbstractSubtraction(this.operand1, this.operand2);
-}
-
-abstract class AbstractNumber {
-  int val;
-  AbstractNumber(this.val);
-}
-
-// library evaluator;
-
-abstract class ExpressionWithEval {
-  int get eval;
-}
-
-abstract class AdditionWithEval<E extends ExpressionWithEval> {
-  E get operand1;
-  E get operand2;
-  int get eval => operand1.eval + operand2.eval;
-}
-
-abstract class SubtractionWithEval<E extends ExpressionWithEval> {
-  E get operand1;
-  E get operand2;
-  int get eval => operand1.eval - operand2.eval;
-}
-
-abstract class NumberWithEval {
-  int get val;
-  int get eval => val;
-}
-
-// library multiplication;
-
-abstract class AbstractMultiplication<E> {
-  E operand1, operand2;
-  AbstractMultiplication(this.operand1, this.operand2);
-}
-
-// library multiplicationEvaluator;
-
-// import 'evaluator.dart' show ExpressionWithEval;
-
-abstract class MultiplicationWithEval<E extends ExpressionWithEval> {
-  E get operand1;
-  E get operand2;
-  int get eval => operand1.eval * operand2.eval;
-}
-
-// library string_converter;
-
-abstract class ExpressionWithStringConversion {
-  String toString();
-}
-
-abstract class AdditionWithStringConversion<
-    E extends ExpressionWithStringConversion> {
-  E get operand1;
-  E get operand2;
-  String toString() => '($operand1 + $operand2))';
-}
-
-abstract class SubtractionWithStringConversion<
-    E extends ExpressionWithStringConversion> {
-  E get operand1;
-  E get operand2;
-  String toString() => '($operand1 - $operand2)';
-}
-
-abstract class NumberWithStringConversion {
-  int get val;
-  String toString() => val.toString();
-}
-
-abstract class MultiplicationWithStringConversion<
-    E extends ExpressionWithStringConversion> {
-  E get operand1;
-  E get operand2;
-  String toString() => '($operand1 * $operand2)';
-}
-
-// library expressions;
-
-// import 'abstractExpressions.dart';
-// import 'evaluator.dart';
-// import 'multiplication.dart';
-// import 'multiplicationEvaluator.dart';
-// import 'stringConverter.dart';
-
-abstract class Expression = AbstractExpression
-    with ExpressionWithEval, ExpressionWithStringConversion;
-
-class Addition = AbstractAddition<Expression>
-    with AdditionWithEval<Expression>, AdditionWithStringConversion<Expression>
-    implements Expression;
-
-class Subtraction = AbstractSubtraction<Expression>
-    with
-        SubtractionWithEval<Expression>,
-        SubtractionWithStringConversion<Expression>
-    implements Expression;
-
-class Number = AbstractNumber
-    with NumberWithEval, NumberWithStringConversion
-    implements Expression;
-
-class Multiplication = AbstractMultiplication<Expression>
-    with
-        MultiplicationWithEval<Expression>,
-        MultiplicationWithStringConversion<Expression>
-    implements Expression;
-
-void main() {
-  Expression e = new Multiplication(new Addition(new Number(4), new Number(2)),
-      new Subtraction(new Number(10), new Number(7)));
-  Expect.equals('((4 + 2)) * (10 - 7)) = 18', '$e = ${e.eval}');
-}
diff --git a/tests/language_2/mixin/class_from_core_library_test.dart b/tests/language_2/mixin/class_from_core_library_test.dart
deleted file mode 100644
index 713649309be..00000000000
--- a/tests/language_2/mixin/class_from_core_library_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-import 'dart:collection';
-
-class MyList extends Object with ListMixin {
-  int length = 0;
-  operator [](index) => null;
-  void operator []=(index, value) {}
-}
-
-main() {
-  new MyList().length;
-}
diff --git a/tests/language_2/mixin/cyclic_runtime_test.dart b/tests/language_2/mixin/cyclic_runtime_test.dart
deleted file mode 100644
index 886299b822e..00000000000
--- a/tests/language_2/mixin/cyclic_runtime_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test for cyclicity check on named mixin applications.
-
-class A<T> {}
-
-class S {}
-
-class M<T> {}
-
-class C1 = S with M;
-
-class C3 = S with M implements A;
-
-
-void main() {
-  new C1();
-
-  new C3();
-
-}
diff --git a/tests/language_2/mixin/cyclic_test.dart b/tests/language_2/mixin/cyclic_test.dart
deleted file mode 100644
index 2276fb72f0e..00000000000
--- a/tests/language_2/mixin/cyclic_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for cyclicity check on named mixin applications.
-
-class A<T> {}
-
-class S {}
-
-class M<T> {}
-
-class C1 = S with M;
-class C2 = S with C2;
-//    ^^
-// [analyzer] COMPILE_TIME_ERROR.RECURSIVE_INTERFACE_INHERITANCE
-// [cfe] 'C2' is a supertype of itself.
-//                ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-class C3 = S with M implements A;
-class C4 = S with M implements C4;
-//    ^^
-// [analyzer] COMPILE_TIME_ERROR.RECURSIVE_INTERFACE_INHERITANCE
-// [cfe] 'C4' is a supertype of itself.
-
-void main() {
-  new C1();
-  new C2();
-  new C3();
-  new C4();
-}
diff --git a/tests/language_2/mixin/deduplication_test.dart b/tests/language_2/mixin/deduplication_test.dart
deleted file mode 100644
index 3510f9e1e0f..00000000000
--- a/tests/language_2/mixin/deduplication_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test mixin de-duplication with new mixin syntax.
-
-import 'package:expect/expect.dart';
-
-class A {
-  int foo() => 1;
-}
-
-class B {
-  int bar() => 2;
-}
-
-abstract class C implements A, B {
-}
-
-mixin M1 on A, B {
-  int sum() => foo() + bar();
-}
-
-mixin M2 on A, B, M1 {
-  int sumX2() => sum()*2;
-}
-
-class X extends C with M1, M2 {
-  int foo() => 4;
-  int bar() => 5;
-}
-
-class Y extends C with M1, M2 {
-  int foo() => 7;
-  int bar() => 10;
-}
-
-X x = new X();
-Y y = new Y();
-
-void main() {
-  Expect.equals(9, x.sum());
-  Expect.equals(18, x.sumX2());
-  Expect.equals(17, y.sum());
-  Expect.equals(34, y.sumX2());
-}
diff --git a/tests/language_2/mixin/extends_field_test.dart b/tests/language_2/mixin/extends_field_test.dart
deleted file mode 100644
index 0f7aff6123b..00000000000
--- a/tests/language_2/mixin/extends_field_test.dart
+++ /dev/null
@@ -1,124 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class S {
-  var foo = "S-foo";
-}
-
-class M1 {
-  final bar = "M1-bar";
-}
-
-class M2 {
-  var baz = "M2-baz";
-}
-
-class C extends S with M1 {}
-
-class D extends S with M1, M2 {}
-
-class E extends S with M2, M1 {}
-
-class F extends E {
-  var fez = "F-fez";
-}
-
-main() {
-  dynamic c = new C();
-  dynamic d = new D();
-  dynamic e = new E();
-  dynamic f = new F();
-
-  Expect.equals("S-foo", c.foo);
-  Expect.equals("S-foo", d.foo);
-  Expect.equals("S-foo", e.foo);
-  Expect.equals("S-foo", f.foo);
-
-  Expect.equals("M1-bar", c.bar);
-  Expect.equals("M1-bar", d.bar);
-  Expect.equals("M1-bar", e.bar);
-  Expect.equals("M1-bar", f.bar);
-
-  Expect.throwsNoSuchMethodError(() => c.baz);
-  Expect.equals("M2-baz", d.baz);
-  Expect.equals("M2-baz", e.baz);
-  Expect.equals("M2-baz", f.baz);
-
-  Expect.throwsNoSuchMethodError(() => c.fez);
-  Expect.throwsNoSuchMethodError(() => d.fez);
-  Expect.throwsNoSuchMethodError(() => e.fez);
-  Expect.equals("F-fez", f.fez);
-
-  c.foo = "S-foo-c";
-  Expect.equals("S-foo-c", c.foo);
-  Expect.equals("S-foo", d.foo);
-  Expect.equals("S-foo", e.foo);
-  Expect.equals("S-foo", f.foo);
-
-  d.foo = "S-foo-d";
-  Expect.equals("S-foo-c", c.foo);
-  Expect.equals("S-foo-d", d.foo);
-  Expect.equals("S-foo", e.foo);
-  Expect.equals("S-foo", f.foo);
-
-  e.foo = "S-foo-e";
-  Expect.equals("S-foo-c", c.foo);
-  Expect.equals("S-foo-d", d.foo);
-  Expect.equals("S-foo-e", e.foo);
-  Expect.equals("S-foo", f.foo);
-
-  f.foo = "S-foo-f";
-  Expect.equals("S-foo-c", c.foo);
-  Expect.equals("S-foo-d", d.foo);
-  Expect.equals("S-foo-e", e.foo);
-  Expect.equals("S-foo-f", f.foo);
-
-  Expect.throwsNoSuchMethodError(() => c.bar = 0);
-  Expect.throwsNoSuchMethodError(() => d.bar = 0);
-  Expect.throwsNoSuchMethodError(() => e.bar = 0);
-  Expect.throwsNoSuchMethodError(() => f.bar = 0);
-  Expect.equals("M1-bar", c.bar);
-  Expect.equals("M1-bar", d.bar);
-  Expect.equals("M1-bar", e.bar);
-  Expect.equals("M1-bar", f.bar);
-
-  Expect.throwsNoSuchMethodError(() => c.baz = 0);
-  Expect.throwsNoSuchMethodError(() => c.baz);
-  Expect.equals("M2-baz", d.baz);
-  Expect.equals("M2-baz", e.baz);
-  Expect.equals("M2-baz", f.baz);
-
-  d.baz = "M2-baz-d";
-  Expect.throwsNoSuchMethodError(() => c.baz);
-  Expect.equals("M2-baz-d", d.baz);
-  Expect.equals("M2-baz", e.baz);
-  Expect.equals("M2-baz", f.baz);
-  Expect.equals("M2-baz", f.baz);
-
-  e.baz = "M2-baz-e";
-  Expect.throwsNoSuchMethodError(() => c.baz);
-  Expect.equals("M2-baz-d", d.baz);
-  Expect.equals("M2-baz-e", e.baz);
-  Expect.equals("M2-baz", f.baz);
-
-  f.baz = "M2-baz-f";
-  Expect.throwsNoSuchMethodError(() => c.baz);
-  Expect.equals("M2-baz-d", d.baz);
-  Expect.equals("M2-baz-e", e.baz);
-  Expect.equals("M2-baz-f", f.baz);
-
-  Expect.throwsNoSuchMethodError(() => c.fez = 0);
-  Expect.throwsNoSuchMethodError(() => d.fez = 0);
-  Expect.throwsNoSuchMethodError(() => e.fez = 0);
-
-  f.fez = "F-fez-f";
-  Expect.throwsNoSuchMethodError(() => c.fez);
-  Expect.throwsNoSuchMethodError(() => d.fez);
-  Expect.throwsNoSuchMethodError(() => e.fez);
-  Expect.equals("F-fez-f", f.fez);
-}
diff --git a/tests/language_2/mixin/extends_is_test.dart b/tests/language_2/mixin/extends_is_test.dart
deleted file mode 100644
index 1c3b99be5b9..00000000000
--- a/tests/language_2/mixin/extends_is_test.dart
+++ /dev/null
@@ -1,89 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class S {}
-
-class M1 {}
-
-class M2 {}
-
-class C extends S with M1 {}
-
-class D extends S with M1, M2 {}
-
-class E extends S with M2, M1 {}
-
-class F extends E {}
-
-class C_ extends S with M1 {}
-
-class D_ extends S with M1, M2 {}
-
-class E_ extends S with M2, M1 {}
-
-class F_ extends E_ {}
-
-main() {
-  var c = new C();
-  Expect.isTrue(c is C);
-  Expect.isFalse(c is D);
-  Expect.isFalse(c is E);
-  Expect.isFalse(c is F);
-  Expect.isTrue(c is S);
-  Expect.isTrue(c is M1);
-  Expect.isFalse(c is M2);
-
-  var d = new D();
-  Expect.isFalse(d is C);
-  Expect.isTrue(d is D);
-  Expect.isFalse(d is E);
-  Expect.isFalse(d is F);
-  Expect.isTrue(d is S);
-  Expect.isTrue(d is M1);
-  Expect.isTrue(d is M2);
-
-  var e = new E();
-  Expect.isFalse(e is C);
-  Expect.isFalse(e is D);
-  Expect.isTrue(e is E);
-  Expect.isFalse(e is F);
-  Expect.isTrue(e is S);
-  Expect.isTrue(e is M1);
-  Expect.isTrue(e is M2);
-
-  var f = new F();
-  Expect.isFalse(f is C);
-  Expect.isFalse(f is D);
-  Expect.isTrue(f is E);
-  Expect.isTrue(f is F);
-  Expect.isTrue(f is S);
-  Expect.isTrue(f is M1);
-  Expect.isTrue(f is M2);
-
-  // Make sure we get a new class for each mixin
-  // application (at least the named ones).
-  Expect.isFalse(c is C_);
-  Expect.isFalse(c is D_);
-  Expect.isFalse(c is E_);
-  Expect.isFalse(c is F_);
-
-  Expect.isFalse(d is C_);
-  Expect.isFalse(d is D_);
-  Expect.isFalse(d is E_);
-  Expect.isFalse(d is F_);
-
-  Expect.isFalse(e is C_);
-  Expect.isFalse(e is D_);
-  Expect.isFalse(e is E_);
-  Expect.isFalse(e is F_);
-
-  Expect.isFalse(f is C_);
-  Expect.isFalse(f is D_);
-  Expect.isFalse(f is E_);
-  Expect.isFalse(f is F_);
-}
diff --git a/tests/language_2/mixin/extends_method_test.dart b/tests/language_2/mixin/extends_method_test.dart
deleted file mode 100644
index cafe5529836..00000000000
--- a/tests/language_2/mixin/extends_method_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class S {
-  foo() => "S-foo";
-  baz() => "S-baz";
-}
-
-class M1 {
-  static m1bar() => "M1-bar";
-  bar() => m1bar();
-}
-
-class M2 {
-  bar() => "M2-bar";
-  baz() => "M2-baz";
-  fez() => "M2-fez";
-}
-
-class C extends S with M1 {}
-
-class D extends S with M1, M2 {}
-
-class E extends S with M2, M1 {}
-
-class F extends E {
-  fez() => "F-fez";
-}
-
-main() {
-  dynamic c = new C();
-  Expect.equals("S-foo", c.foo());
-  Expect.equals("M1-bar", c.bar());
-  Expect.equals("S-baz", c.baz());
-  Expect.throwsNoSuchMethodError(() => c.fez());
-
-  var d = new D();
-  Expect.equals("S-foo", d.foo());
-  Expect.equals("M2-bar", d.bar());
-  Expect.equals("M2-baz", d.baz());
-  Expect.equals("M2-fez", d.fez());
-
-  var e = new E();
-  Expect.equals("S-foo", e.foo());
-  Expect.equals("M1-bar", e.bar());
-  Expect.equals("M2-baz", e.baz());
-  Expect.equals("M2-fez", e.fez());
-
-  var f = new F();
-  Expect.equals("S-foo", f.foo());
-  Expect.equals("M1-bar", f.bar());
-  Expect.equals("M2-baz", f.baz());
-  Expect.equals("F-fez", f.fez());
-}
diff --git a/tests/language_2/mixin/factory_constructor_test.dart b/tests/language_2/mixin/factory_constructor_test.dart
deleted file mode 100644
index 2dd5f8bb2e8..00000000000
--- a/tests/language_2/mixin/factory_constructor_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Base {
-  var y;
-  Base._() {
-    y = "world";
-  }
-}
-
-abstract class Mixin implements Base {
-  final x = "hello";
-  factory Mixin() => new _MixinAndBase._();
-}
-
-// TODO(jmesserly): according to the spec, this does not appear to be a valid
-// mixin (because it declares a constructor), however it is supported by Dart
-// implementations.
-class _MixinAndBase = Base with Mixin;
-
-void main() {
-  var val = new Mixin();
-  Expect.equals(val.x, "hello");
-  Expect.equals(val.y, "world");
-}
diff --git a/tests/language_2/mixin/field_initializer_test.dart b/tests/language_2/mixin/field_initializer_test.dart
deleted file mode 100644
index 46364cd91dc..00000000000
--- a/tests/language_2/mixin/field_initializer_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing throw statement
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class S {
-  var s1 = good_stuff();
-  static good_stuff() => "Speyburn";
-}
-
-good_stuff() => "Glenfiddich";
-
-class M {
-  var m1 = good_stuff();
-  static good_stuff() => "Macallen";
-}
-
-class A extends S with M {
-  static good_stuff() => "Ardberg";
-}
-
-main() {
-  var a = new A();
-  Expect.equals("Macallen", a.m1);
-  Expect.equals("Speyburn", a.s1);
-
-  var m = new M();
-  Expect.equals("Macallen", m.m1);
-}
diff --git a/tests/language_2/mixin/field_test.dart b/tests/language_2/mixin/field_test.dart
deleted file mode 100644
index c4a3fd888ee..00000000000
--- a/tests/language_2/mixin/field_test.dart
+++ /dev/null
@@ -1,122 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class S {
-  var foo = "S-foo";
-}
-
-class M1 {
-  final bar = "M1-bar";
-}
-
-class M2 {
-  var baz = "M2-baz";
-}
-
-class C = S with M1;
-class D = S with M1, M2;
-class E = S with M2, M1;
-
-class F extends E {
-  var fez = "F-fez";
-}
-
-main() {
-  dynamic c = new C();
-  dynamic d = new D();
-  dynamic e = new E();
-  dynamic f = new F();
-
-  Expect.equals("S-foo", c.foo);
-  Expect.equals("S-foo", d.foo);
-  Expect.equals("S-foo", e.foo);
-  Expect.equals("S-foo", f.foo);
-
-  Expect.equals("M1-bar", c.bar);
-  Expect.equals("M1-bar", d.bar);
-  Expect.equals("M1-bar", e.bar);
-  Expect.equals("M1-bar", f.bar);
-
-  Expect.throwsNoSuchMethodError(() => c.baz);
-  Expect.equals("M2-baz", d.baz);
-  Expect.equals("M2-baz", e.baz);
-  Expect.equals("M2-baz", f.baz);
-
-  Expect.throwsNoSuchMethodError(() => c.fez);
-  Expect.throwsNoSuchMethodError(() => d.fez);
-  Expect.throwsNoSuchMethodError(() => e.fez);
-  Expect.equals("F-fez", f.fez);
-
-  c.foo = "S-foo-c";
-  Expect.equals("S-foo-c", c.foo);
-  Expect.equals("S-foo", d.foo);
-  Expect.equals("S-foo", e.foo);
-  Expect.equals("S-foo", f.foo);
-
-  d.foo = "S-foo-d";
-  Expect.equals("S-foo-c", c.foo);
-  Expect.equals("S-foo-d", d.foo);
-  Expect.equals("S-foo", e.foo);
-  Expect.equals("S-foo", f.foo);
-
-  e.foo = "S-foo-e";
-  Expect.equals("S-foo-c", c.foo);
-  Expect.equals("S-foo-d", d.foo);
-  Expect.equals("S-foo-e", e.foo);
-  Expect.equals("S-foo", f.foo);
-
-  f.foo = "S-foo-f";
-  Expect.equals("S-foo-c", c.foo);
-  Expect.equals("S-foo-d", d.foo);
-  Expect.equals("S-foo-e", e.foo);
-  Expect.equals("S-foo-f", f.foo);
-
-  Expect.throwsNoSuchMethodError(() => c.bar = 0);
-  Expect.throwsNoSuchMethodError(() => d.bar = 0);
-  Expect.throwsNoSuchMethodError(() => e.bar = 0);
-  Expect.throwsNoSuchMethodError(() => f.bar = 0);
-  Expect.equals("M1-bar", c.bar);
-  Expect.equals("M1-bar", d.bar);
-  Expect.equals("M1-bar", e.bar);
-  Expect.equals("M1-bar", f.bar);
-
-  Expect.throwsNoSuchMethodError(() => c.baz = 0);
-  Expect.throwsNoSuchMethodError(() => c.baz);
-  Expect.equals("M2-baz", d.baz);
-  Expect.equals("M2-baz", e.baz);
-  Expect.equals("M2-baz", f.baz);
-
-  d.baz = "M2-baz-d";
-  Expect.throwsNoSuchMethodError(() => c.baz);
-  Expect.equals("M2-baz-d", d.baz);
-  Expect.equals("M2-baz", e.baz);
-  Expect.equals("M2-baz", f.baz);
-  Expect.equals("M2-baz", f.baz);
-
-  e.baz = "M2-baz-e";
-  Expect.throwsNoSuchMethodError(() => c.baz);
-  Expect.equals("M2-baz-d", d.baz);
-  Expect.equals("M2-baz-e", e.baz);
-  Expect.equals("M2-baz", f.baz);
-
-  f.baz = "M2-baz-f";
-  Expect.throwsNoSuchMethodError(() => c.baz);
-  Expect.equals("M2-baz-d", d.baz);
-  Expect.equals("M2-baz-e", e.baz);
-  Expect.equals("M2-baz-f", f.baz);
-
-  Expect.throwsNoSuchMethodError(() => c.fez = 0);
-  Expect.throwsNoSuchMethodError(() => d.fez = 0);
-  Expect.throwsNoSuchMethodError(() => e.fez = 0);
-
-  f.fez = "F-fez-f";
-  Expect.throwsNoSuchMethodError(() => c.fez);
-  Expect.throwsNoSuchMethodError(() => d.fez);
-  Expect.throwsNoSuchMethodError(() => e.fez);
-  Expect.equals("F-fez-f", f.fez);
-}
diff --git a/tests/language_2/mixin/forwarding_constructor1_test.dart b/tests/language_2/mixin/forwarding_constructor1_test.dart
deleted file mode 100644
index f4a6d37dff3..00000000000
--- a/tests/language_2/mixin/forwarding_constructor1_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class Mixin1 {
-  var mixin1Field = 1;
-}
-
-abstract class Mixin2 {
-  var mixin2Field = 2;
-}
-
-class A {
-  var superField;
-  A(foo) : superField = foo;
-}
-
-class B extends A with Mixin1, Mixin2 {
-  var field = 4;
-  B(unused) : super(3);
-}
-
-main() {
-  var b = new B(null);
-  Expect.equals(1, b.mixin1Field);
-  Expect.equals(2, b.mixin2Field);
-  Expect.equals(3, b.superField);
-  Expect.equals(4, b.field);
-}
diff --git a/tests/language_2/mixin/forwarding_constructor2_test.dart b/tests/language_2/mixin/forwarding_constructor2_test.dart
deleted file mode 100644
index 262c3fba7c6..00000000000
--- a/tests/language_2/mixin/forwarding_constructor2_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class Mixin1 {
-  var mixin1Field = 1;
-}
-
-abstract class Mixin2 {
-  var mixin2Field = 2;
-}
-
-class A {
-  var superField;
-  A() : superField = 3;
-}
-
-class B extends A with Mixin1, Mixin2 {
-  var field = 4;
-}
-
-main() {
-  var b = new B();
-  Expect.equals(1, b.mixin1Field);
-  Expect.equals(2, b.mixin2Field);
-  Expect.equals(3, b.superField);
-  Expect.equals(4, b.field);
-}
diff --git a/tests/language_2/mixin/forwarding_constructor3_test.dart b/tests/language_2/mixin/forwarding_constructor3_test.dart
deleted file mode 100644
index b9e36190d4f..00000000000
--- a/tests/language_2/mixin/forwarding_constructor3_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that a named mixin constructor forwards to the corresponding named
-// base class constructor.
-
-import "package:expect/expect.dart";
-
-abstract class Mixin1 {
-  var mixin1Field = 1;
-}
-
-abstract class Mixin2 {
-  var mixin2Field = 2;
-}
-
-class A {
-  var superField;
-  A(foo) : superField = 0;
-  A.c1(foo) : superField = foo;
-  A.c2(foo) : superField = 0;
-}
-
-class B extends A with Mixin1, Mixin2 {
-  var field = 4;
-  B(unused) : super.c1(3);
-}
-
-main() {
-  var b = new B(null);
-  Expect.equals(1, b.mixin1Field);
-  Expect.equals(2, b.mixin2Field);
-  Expect.equals(3, b.superField);
-  Expect.equals(4, b.field);
-}
diff --git a/tests/language_2/mixin/forwarding_constructor4_test.dart b/tests/language_2/mixin/forwarding_constructor4_test.dart
deleted file mode 100644
index ded2752938e..00000000000
--- a/tests/language_2/mixin/forwarding_constructor4_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that a forwarding constructor is generated even when there is an
-// optional parameter.
-
-abstract class Mixin {}
-
-class Base {
-  Base(
-      {x} //       //# 01: ok
-      {x} //       //# 02: ok
-      {x} //       //# 03: ok
-      );
-}
-
-class C extends Base with Mixin {
-  C(); //          //# 02: continued
-  C() : super(); //# 03: continued
-}
-
-main() {
-  new C();
-}
diff --git a/tests/language_2/mixin/generic_test.dart b/tests/language_2/mixin/generic_test.dart
deleted file mode 100644
index 42fd4f229c3..00000000000
--- a/tests/language_2/mixin/generic_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class S<T> {
-  s() {
-    return T;
-  }
-}
-
-class M<T> {
-  m() {
-    return T;
-  }
-}
-
-class N<T> {
-  n() {
-    return T;
-  }
-}
-
-class C<U, V> extends S<Map<U, V>> with M<List<U>>, N<Set<V>> {}
-
-main() {
-  var c = new C<int, bool>();
-  Expect.isTrue(c is S<Map<int, bool>>);
-  Expect.equals("Map<int, bool>", c.s().toString());
-  Expect.isTrue(c is M<List<int>>);
-  Expect.equals("List<int>", c.m().toString());
-  Expect.isTrue(c is N<Set<bool>>);
-  Expect.equals("Set<bool>", c.n().toString());
-}
diff --git a/tests/language_2/mixin/getter_regression_test.dart b/tests/language_2/mixin/getter_regression_test.dart
deleted file mode 100644
index 0e2dd1cf20a..00000000000
--- a/tests/language_2/mixin/getter_regression_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test case for dart2js bug where the getter for y wasn't
-// properly mixed in.
-
-import "package:expect/expect.dart";
-
-class C {
-  int x;
-  int get y => x;
-}
-
-class E {
-  int z = 10;
-}
-
-class D extends E with C {
-  int w = 42;
-}
-
-main() {
-  var d = new D();
-  d.x = 37;
-  Expect.equals(37, d.x);
-  Expect.equals(10, d.z);
-  Expect.equals(42, d.w);
-  Expect.equals(37, d.y);
-}
diff --git a/tests/language_2/mixin/illegal_constructor_runtime_test.dart b/tests/language_2/mixin/illegal_constructor_runtime_test.dart
deleted file mode 100644
index 2ef9ac3c010..00000000000
--- a/tests/language_2/mixin/illegal_constructor_runtime_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class M0 {
-  factory M0(a, b, c) => null;
-  factory M0.named() => null;
-}
-
-class M1 {
-  M1();
-}
-
-class M2 {
-  M2.named();
-}
-
-class C0 = Object with M0;
-
-
-
-
-
-
-
-class D0 extends Object with M0 {}
-
-
-
-
-
-
-
-main() {
-  new C0();
-
-
-
-
-
-
-
-  new D0();
-
-
-
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/mixin/illegal_constructor_test.dart b/tests/language_2/mixin/illegal_constructor_test.dart
deleted file mode 100644
index b2b3ac7baf2..00000000000
--- a/tests/language_2/mixin/illegal_constructor_test.dart
+++ /dev/null
@@ -1,119 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class M0 {
-  factory M0(a, b, c) => null;
-  factory M0.named() => null;
-}
-
-class M1 {
-  M1();
-}
-
-class M2 {
-  M2.named();
-}
-
-class C0 = Object with M0;
-class C1 = Object with M1;
-//    ^
-// [cfe] Can't use 'M1' as a mixin because it has constructors.
-//                     ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_CLASS_DECLARES_CONSTRUCTOR
-class C2 = Object with M2;
-//    ^
-// [cfe] Can't use 'M2' as a mixin because it has constructors.
-//                     ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_CLASS_DECLARES_CONSTRUCTOR
-class C3 = Object with M0, M1;
-//    ^
-// [cfe] Can't use 'M1' as a mixin because it has constructors.
-//                         ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_CLASS_DECLARES_CONSTRUCTOR
-class C4 = Object with M1, M0;
-//    ^
-// [cfe] Can't use 'M1' as a mixin because it has constructors.
-//                     ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_CLASS_DECLARES_CONSTRUCTOR
-class C5 = Object with M0, M2;
-//    ^
-// [cfe] Can't use 'M2' as a mixin because it has constructors.
-//                         ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_CLASS_DECLARES_CONSTRUCTOR
-class C6 = Object with M2, M0;
-//    ^
-// [cfe] Can't use 'M2' as a mixin because it has constructors.
-//                     ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_CLASS_DECLARES_CONSTRUCTOR
-
-class D0 extends Object with M0 {}
-class D1 extends Object with M1 { }
-//    ^
-// [cfe] Can't use 'M1' as a mixin because it has constructors.
-//                           ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_CLASS_DECLARES_CONSTRUCTOR
-class D2 extends Object with M2 { }
-//    ^
-// [cfe] Can't use 'M2' as a mixin because it has constructors.
-//                           ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_CLASS_DECLARES_CONSTRUCTOR
-class D3 extends Object with M0, M1 { }
-//    ^
-// [cfe] Can't use 'M1' as a mixin because it has constructors.
-//                               ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_CLASS_DECLARES_CONSTRUCTOR
-class D4 extends Object with M1, M0 { }
-//    ^
-// [cfe] Can't use 'M1' as a mixin because it has constructors.
-//                           ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_CLASS_DECLARES_CONSTRUCTOR
-class D5 extends Object with M0, M2 { }
-//    ^
-// [cfe] Can't use 'M2' as a mixin because it has constructors.
-//                               ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_CLASS_DECLARES_CONSTRUCTOR
-class D6 extends Object with M2, M0 { }
-//    ^
-// [cfe] Can't use 'M2' as a mixin because it has constructors.
-//                           ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_CLASS_DECLARES_CONSTRUCTOR
-
-main() {
-  new C0();
-  new C1();
-  new C2();
-  new C3();
-  new C4();
-  new C5();
-  new C6();
-
-  new D0();
-  new D1();
-  new D2();
-  new D3();
-  new D4();
-  new D5();
-  new D6();
-
-  new C0(1,2,3);
-  //    ^
-  // [cfe] Too many positional arguments: 0 allowed, but 3 found.
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS
-  new C0.named();
-  //     ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.NEW_WITH_UNDEFINED_CONSTRUCTOR
-  // [cfe] Couldn't find constructor 'C0.named'.
-  new D0(1,2,3);
-  //    ^
-  // [cfe] Too many positional arguments: 0 allowed, but 3 found.
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS
-  new D0.named();
-  //     ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.NEW_WITH_UNDEFINED_CONSTRUCTOR
-  // [cfe] Couldn't find constructor 'D0.named'.
-}
diff --git a/tests/language_2/mixin/illegal_cycles_runtime_test.dart b/tests/language_2/mixin/illegal_cycles_runtime_test.dart
deleted file mode 100644
index de5a401d217..00000000000
--- a/tests/language_2/mixin/illegal_cycles_runtime_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class M {}
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-main() {
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/mixin/illegal_cycles_test.dart b/tests/language_2/mixin/illegal_cycles_test.dart
deleted file mode 100644
index faa4c64061f..00000000000
--- a/tests/language_2/mixin/illegal_cycles_test.dart
+++ /dev/null
@@ -1,88 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class M {}
-class M0 extends Object with M0 { }
-//    ^^
-// [analyzer] COMPILE_TIME_ERROR.RECURSIVE_INTERFACE_INHERITANCE
-// [cfe] 'M0' is a supertype of itself.
-//    ^
-// [cfe] 'Object with M0' is a supertype of itself.
-//                           ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-class M1 = Object with M1;
-//    ^^
-// [analyzer] COMPILE_TIME_ERROR.RECURSIVE_INTERFACE_INHERITANCE
-// [cfe] 'M1' is a supertype of itself.
-
-class M2 = Object with M3;
-//    ^^
-// [analyzer] COMPILE_TIME_ERROR.RECURSIVE_INTERFACE_INHERITANCE
-// [cfe] 'M2' is a supertype of itself.
-class M3 = Object with M2;
-//    ^^
-// [analyzer] COMPILE_TIME_ERROR.RECURSIVE_INTERFACE_INHERITANCE
-// [cfe] 'M3' is a supertype of itself.
-
-class M4 = Object with M5;
-//    ^^
-// [analyzer] COMPILE_TIME_ERROR.RECURSIVE_INTERFACE_INHERITANCE
-// [cfe] 'M4' is a supertype of itself.
-class M5 = Object with M6;
-//    ^^
-// [analyzer] COMPILE_TIME_ERROR.RECURSIVE_INTERFACE_INHERITANCE
-// [cfe] 'M5' is a supertype of itself.
-class M6 = Object with M4;
-//    ^^
-// [analyzer] COMPILE_TIME_ERROR.RECURSIVE_INTERFACE_INHERITANCE
-// [cfe] 'M6' is a supertype of itself.
-
-class M7 extends Object with M8 { }
-//    ^^
-// [analyzer] COMPILE_TIME_ERROR.RECURSIVE_INTERFACE_INHERITANCE
-// [cfe] 'M7' is a supertype of itself.
-//    ^
-// [cfe] 'Object with M8' is a supertype of itself.
-//                           ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-class M8 extends Object with M7 { }
-//    ^^
-// [analyzer] COMPILE_TIME_ERROR.RECURSIVE_INTERFACE_INHERITANCE
-// [cfe] 'M8' is a supertype of itself.
-//    ^
-// [cfe] 'Object with M7' is a supertype of itself.
-//                           ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-
-class M9  = Object with M91;
-//    ^
-// [cfe] 'M9' is a supertype of itself.
-class M91 = Object with M92;
-//    ^^^
-// [analyzer] COMPILE_TIME_ERROR.RECURSIVE_INTERFACE_INHERITANCE
-// [cfe] 'M91' is a supertype of itself.
-class M92 = Object with M91;
-//    ^^^
-// [analyzer] COMPILE_TIME_ERROR.RECURSIVE_INTERFACE_INHERITANCE
-// [cfe] 'M92' is a supertype of itself.
-
-main() {
-  new M0();
-
-  new M1();
-
-  new M2();
-  new M3();
-
-  new M4();
-  new M5();
-  new M6();
-
-  new M7();
-  new M8();
-
-  new M9();
-}
diff --git a/tests/language_2/mixin/illegal_object_runtime_test.dart b/tests/language_2/mixin/illegal_object_runtime_test.dart
deleted file mode 100644
index 62afbd1a8c2..00000000000
--- a/tests/language_2/mixin/illegal_object_runtime_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Object has a non-trivial constructor and hence cannot be used as mixin.
-
-class S {}
-
-class C0 extends S
-
-{}
-
-
-
-main() {
-  new C0();
-
-}
diff --git a/tests/language_2/mixin/illegal_object_test.dart b/tests/language_2/mixin/illegal_object_test.dart
deleted file mode 100644
index fffc7aa3870..00000000000
--- a/tests/language_2/mixin/illegal_object_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Object has a non-trivial constructor and hence cannot be used as mixin.
-
-class S {}
-
-class C0 extends S
-//    ^
-// [cfe] Can't use 'Object' as a mixin because it has constructors.
-with Object
-//   ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_CLASS_DECLARES_CONSTRUCTOR
-{}
-
-class C1 = S with Object;
-//    ^
-// [cfe] Can't use 'Object' as a mixin because it has constructors.
-//                ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_CLASS_DECLARES_CONSTRUCTOR
-
-main() {
-  new C0();
-  new C1();
-}
diff --git a/tests/language_2/mixin/illegal_static_access_runtime_test.dart b/tests/language_2/mixin/illegal_static_access_runtime_test.dart
deleted file mode 100644
index 93f145ea31b..00000000000
--- a/tests/language_2/mixin/illegal_static_access_runtime_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class S {
-  static foo() => 42;
-}
-
-class M {
-  static bar() => 87;
-}
-
-class C = S with M;
-
-main() {
-  Expect.equals(42, S.foo());
-  Expect.equals(87, M.bar());
-
-
-
-}
diff --git a/tests/language_2/mixin/illegal_static_access_test.dart b/tests/language_2/mixin/illegal_static_access_test.dart
deleted file mode 100644
index f07cb38a73f..00000000000
--- a/tests/language_2/mixin/illegal_static_access_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class S {
-  static foo() => 42;
-}
-
-class M {
-  static bar() => 87;
-}
-
-class C = S with M;
-
-main() {
-  Expect.equals(42, S.foo());
-  Expect.equals(87, M.bar());
-
-  Expect.throwsNoSuchMethodError(() => C.foo());
-  //                                     ^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_METHOD
-  // [cfe] Member not found: 'C.foo'.
-  Expect.throwsNoSuchMethodError(() => C.bar());
-  //                                     ^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_METHOD
-  // [cfe] Member not found: 'C.bar'.
-}
diff --git a/tests/language_2/mixin/illegal_super_use_runtime_test.dart b/tests/language_2/mixin/illegal_super_use_runtime_test.dart
deleted file mode 100644
index 4b681b43d26..00000000000
--- a/tests/language_2/mixin/illegal_super_use_runtime_test.dart
+++ /dev/null
@@ -1,75 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class M {}
-
-class P0 {
-  foo() {
-
-
-
-
-    void inner() {
-
-
-
-    }
-    inner();
-
-    (() {
-
-
-
-    })();
-
-    return 42;
-  }
-}
-
-class P1 {
-  bar() {
-
-    return 87;
-  }
-
-  // The test method is strategically placed here to try to force the
-  // P1 class and its bar method to be resolved before resolving the
-  // mixin applications.
-  test() {
-    new C();
-    var d = new D();
-    var e = new E();
-    var f = new F();
-    Expect.equals(42, d.foo());
-    Expect.equals(87, e.bar());
-    Expect.equals(99, f.baz());
-  }
-}
-
-class P2 {
-  baz() {
-
-    return 99;
-  }
-}
-
-class C = Object with M;
-class D = Object with P0;
-class E = Object with M, P1;
-class F = Object with P2, M;
-
-main() {
-  var p1 = new P1();
-  var p2 = new P2();
-  Expect.equals(87, p1.bar());
-  p1.test();
-  Expect.equals(99, p2.baz());
-}
diff --git a/tests/language_2/mixin/illegal_super_use_test.dart b/tests/language_2/mixin/illegal_super_use_test.dart
deleted file mode 100644
index 7ea789486e2..00000000000
--- a/tests/language_2/mixin/illegal_super_use_test.dart
+++ /dev/null
@@ -1,90 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class M {}
-
-class P0 {
-  foo() {
-    super.toString();
-    super.foo();
-    //    ^^^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_SUPER_MEMBER
-    // [cfe] Superclass has no method named 'foo'.
-    super.bar = 100;
-    //    ^^^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_SUPER_MEMBER
-    // [cfe] Superclass has no setter named 'bar'.
-
-    void inner() {
-      super.toString();
-      super.foo();
-      //    ^^^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_SUPER_MEMBER
-      // [cfe] Superclass has no method named 'foo'.
-      super.bar = 100;
-      //    ^^^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_SUPER_MEMBER
-      // [cfe] Superclass has no setter named 'bar'.
-    }
-    inner();
-
-    (() {
-      super.toString();
-      super.foo();
-      //    ^^^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_SUPER_MEMBER
-      // [cfe] Superclass has no method named 'foo'.
-      super.bar = 100;
-      //    ^^^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_SUPER_MEMBER
-      // [cfe] Superclass has no setter named 'bar'.
-    })();
-
-    return 42;
-  }
-}
-
-class P1 {
-  bar() {
-    super.toString();
-    return 87;
-  }
-
-  // The test method is strategically placed here to try to force the
-  // P1 class and its bar method to be resolved before resolving the
-  // mixin applications.
-  test() {
-    new C();
-    var d = new D();
-    var e = new E();
-    var f = new F();
-    Expect.equals(42, d.foo());
-    Expect.equals(87, e.bar());
-    Expect.equals(99, f.baz());
-  }
-}
-
-class P2 {
-  baz() {
-    super.toString();
-    return 99;
-  }
-}
-
-class C = Object with M;
-class D = Object with P0;
-class E = Object with M, P1;
-class F = Object with P2, M;
-
-main() {
-  var p1 = new P1();
-  var p2 = new P2();
-  Expect.equals(87, p1.bar());
-  p1.test();
-  Expect.equals(99, p2.baz());
-}
diff --git a/tests/language_2/mixin/illegal_superclass_runtime_test.dart b/tests/language_2/mixin/illegal_superclass_runtime_test.dart
deleted file mode 100644
index 265822db26a..00000000000
--- a/tests/language_2/mixin/illegal_superclass_runtime_test.dart
+++ /dev/null
@@ -1,136 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class S0 {}
-
-class S1 extends Object {}
-
-class S2 extends S0 {}
-
-class M0 {}
-
-class M1 extends Object {}
-
-class M2 extends M0 {}
-
-class C00 = S0 with M0;
-class C01 = S0 with M1;
-
-class C03 = S0 with M0, M1;
-
-
-
-
-
-class C10 = S1 with M0;
-class C11 = S1 with M1;
-
-class C13 = S1 with M0, M1;
-
-
-
-
-
-class C20 = S2 with M0;
-class C21 = S2 with M1;
-
-class C23 = S2 with M0, M1;
-
-
-
-
-
-class D00 extends S0 with M0 {}
-
-class D01 extends S0 with M1 {}
-
-
-class D03 extends S0 with M0, M1 {}
-
-
-
-
-
-class D10 extends S1 with M0 {}
-
-class D11 extends S1 with M1 {}
-
-
-class D13 extends S1 with M0, M1 {}
-
-
-
-
-
-class D20 extends S2 with M0 {}
-
-class D21 extends S2 with M1 {}
-
-
-class D23 extends S2 with M0, M1 {}
-
-
-
-
-
-main() {
-  new C00();
-  new C01();
-
-  new C03();
-
-
-
-
-
-  new C10();
-  new C11();
-
-  new C13();
-
-
-
-
-
-  new C20();
-  new C21();
-
-  new C23();
-
-
-
-
-
-  new D00();
-  new D01();
-
-  new D03();
-
-
-
-
-
-  new D10();
-  new D11();
-
-  new D13();
-
-
-
-
-
-  new D20();
-  new D21();
-
-  new D23();
-
-
-
-
-}
diff --git a/tests/language_2/mixin/illegal_superclass_test.dart b/tests/language_2/mixin/illegal_superclass_test.dart
deleted file mode 100644
index 9290955005e..00000000000
--- a/tests/language_2/mixin/illegal_superclass_test.dart
+++ /dev/null
@@ -1,253 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class S0 {}
-
-class S1 extends Object {}
-
-class S2 extends S0 {}
-
-class M0 {}
-
-class M1 extends Object {}
-
-class M2 extends M0 {}
-
-class C00 = S0 with M0;
-class C01 = S0 with M1;
-class C02 = S0 with M2;
-//                  ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 21, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-class C03 = S0 with M0, M1;
-class C04 = S0 with M0, M2;
-//                      ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 25, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-class C05 = S0 with M2, M0;
-//                  ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 21, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-class C06 = S0 with M1, M2;
-//                      ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 25, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-class C07 = S0 with M2, M1;
-//                  ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 21, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-
-class C10 = S1 with M0;
-class C11 = S1 with M1;
-class C12 = S1 with M2;
-//                  ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 21, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-class C13 = S1 with M0, M1;
-class C14 = S1 with M0, M2;
-//                      ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 25, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-class C15 = S1 with M2, M0;
-//                  ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 21, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-class C16 = S1 with M1, M2;
-//                      ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 25, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-class C17 = S1 with M2, M1;
-//                  ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 21, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-
-class C20 = S2 with M0;
-class C21 = S2 with M1;
-class C22 = S2 with M2;
-//                  ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 21, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-class C23 = S2 with M0, M1;
-class C24 = S2 with M0, M2;
-//                      ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 25, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-class C25 = S2 with M2, M0;
-//                  ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 21, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-class C26 = S2 with M1, M2;
-//                      ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 25, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-class C27 = S2 with M2, M1;
-//                  ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 21, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-
-class D00 extends S0 with M0 {}
-
-class D01 extends S0 with M1 {}
-
-class D02 extends S0 with M2 { }
-//                        ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 27, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-class D03 extends S0 with M0, M1 {}
-class D04 extends S0 with M0, M2 { }
-//                            ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 31, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-class D05 extends S0 with M2, M0 { }
-//                        ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 27, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-class D06 extends S0 with M1, M2 { }
-//                            ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 31, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-class D07 extends S0 with M2, M1 { }
-//                        ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 27, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-
-class D10 extends S1 with M0 {}
-
-class D11 extends S1 with M1 {}
-
-class D12 extends S1 with M2 { }
-//                        ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 27, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-class D13 extends S1 with M0, M1 {}
-class D14 extends S1 with M0, M2 { }
-//                            ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 31, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-class D15 extends S1 with M2, M0 { }
-//                        ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 27, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-class D16 extends S1 with M1, M2 { }
-//                            ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 31, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-class D17 extends S1 with M2, M1 { }
-//                        ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 27, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-
-class D20 extends S2 with M0 {}
-
-class D21 extends S2 with M1 {}
-
-class D22 extends S2 with M2 { }
-//                        ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 27, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-class D23 extends S2 with M0, M1 {}
-class D24 extends S2 with M0, M2 { }
-//                            ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 31, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-class D25 extends S2 with M2, M0 { }
-//                        ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 27, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-class D26 extends S2 with M1, M2 { }
-//                            ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 31, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-class D27 extends S2 with M2, M1 { }
-//                        ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_INHERITS_FROM_NOT_OBJECT
-// [error column 27, length 0]
-// [cfe] The class 'M2' can't be used as a mixin because it extends a class other than 'Object'.
-
-main() {
-  new C00();
-  new C01();
-  new C02();
-  new C03();
-  new C04();
-  new C05();
-  new C06();
-  new C07();
-
-  new C10();
-  new C11();
-  new C12();
-  new C13();
-  new C14();
-  new C15();
-  new C16();
-  new C17();
-
-  new C20();
-  new C21();
-  new C22();
-  new C23();
-  new C24();
-  new C25();
-  new C26();
-  new C27();
-
-  new D00();
-  new D01();
-  new D02();
-  new D03();
-  new D04();
-  new D05();
-  new D06();
-  new D07();
-
-  new D10();
-  new D11();
-  new D12();
-  new D13();
-  new D14();
-  new D15();
-  new D16();
-  new D17();
-
-  new D20();
-  new D21();
-  new D22();
-  new D23();
-  new D24();
-  new D25();
-  new D26();
-  new D27();
-}
diff --git a/tests/language_2/mixin/illegal_syntax_test.dart b/tests/language_2/mixin/illegal_syntax_test.dart
deleted file mode 100644
index 25802e9bdff..00000000000
--- a/tests/language_2/mixin/illegal_syntax_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class S { }
-class G<T> { }
-class M { }
-
-class T0 = S with M;
-abstract class T0A = S with M;
-class T1 = final S with M; //    //# 01: syntax error
-class T2 = var S with M; //      //# 02: syntax error
-class T3 = const S with M; //    //# 03: syntax error
-class T4 = static S with M; //   //# 04: syntax error
-class T5 = external S with M; // //# 05: syntax error
-class T6 = G<int> with M;
-class T7 = G<Map<String,int>> with M;
-
-class C0 extends abstract S with M { } // //# 06: syntax error
-class C1 extends final S with M { } //    //# 07: syntax error
-class C2 extends var S with M { } //      //# 08: syntax error
-class C3 extends const S with M { } //    //# 09: syntax error
-class C4 extends static S with M { } //   //# 10: syntax error
-class C5 extends external S with M { } // //# 11: syntax error
-class C6 extends G<int> with M { }
-class C7 extends G<Map<String,int>> with M { }
-
-class D0 extends S with M
-    implements M // //# 12: syntax error
-    implements M { }
-
-class D1 extends T0 { }
-
-class X = S; //  //# 14: syntax error
-
-main() {
-  new T0();
-  new T0A(); // //# 13: compile-time error
-  new T1(); // //# 01: continued
-  new T2(); // //# 02: continued
-  new T3(); // //# 03: continued
-  new T4(); // //# 04: continued
-  new T5(); // //# 05: continued
-  new T6();
-  new T7();
-
-  new C0(); // //# 06: continued
-  new C1(); // //# 07: continued
-  new C2(); // //# 08: continued
-  new C3(); // //# 09: continued
-  new C4(); // //# 10: continued
-  new C5(); // //# 11: continued
-  new C6();
-  new C7();
-
-  new D0(); // //# 12: continued
-  new D1();
-  new X(); //  //# 14: continued
-}
diff --git a/tests/language_2/mixin/implements2_test.dart b/tests/language_2/mixin/implements2_test.dart
deleted file mode 100644
index 5362059a4cc..00000000000
--- a/tests/language_2/mixin/implements2_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for named mixin applications with implements clause.
-
-class A {}
-
-class S {}
-
-class M {}
-
-class C = S with M implements A;
-
-void main() {
-  new C();
-}
diff --git a/tests/language_2/mixin/implements_test.dart b/tests/language_2/mixin/implements_test.dart
deleted file mode 100644
index 16f54ca1e86..00000000000
--- a/tests/language_2/mixin/implements_test.dart
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class I0 {
-  foo();
-}
-
-abstract class I1 {
-  bar();
-}
-
-abstract class I2 implements I0, I1 {}
-
-class M {
-  foo() => 42;
-  bar() => 87;
-}
-
-class C0 = Object with M;
-class C1 = Object with M implements I0;
-class C2 = Object with M implements I1;
-class C3 = Object with M implements I0, I1;
-class C4 = Object with M implements I1, I0;
-class C5 = Object with M implements I2;
-
-main() {
-  var c0 = new C0();
-  Expect.equals(42, c0.foo());
-  Expect.equals(87, c0.bar());
-  Expect.isTrue(c0 is M);
-  Expect.isFalse(c0 is I0);
-  Expect.isFalse(c0 is I1);
-  Expect.isFalse(c0 is I2);
-
-  var c1 = new C1();
-  Expect.equals(42, c1.foo());
-  Expect.equals(87, c1.bar());
-  Expect.isTrue(c1 is M);
-  Expect.isTrue(c1 is I0);
-  Expect.isFalse(c1 is I1);
-  Expect.isFalse(c1 is I2);
-
-  var c2 = new C2();
-  Expect.equals(42, c2.foo());
-  Expect.equals(87, c2.bar());
-  Expect.isTrue(c2 is M);
-  Expect.isFalse(c2 is I0);
-  Expect.isTrue(c2 is I1);
-  Expect.isFalse(c1 is I2);
-
-  var c3 = new C3();
-  Expect.equals(42, c3.foo());
-  Expect.equals(87, c3.bar());
-  Expect.isTrue(c3 is M);
-  Expect.isTrue(c3 is I0);
-  Expect.isTrue(c3 is I1);
-  Expect.isFalse(c1 is I2);
-
-  var c4 = new C4();
-  Expect.equals(42, c4.foo());
-  Expect.equals(87, c4.bar());
-  Expect.isTrue(c4 is M);
-  Expect.isTrue(c4 is I0);
-  Expect.isTrue(c4 is I1);
-  Expect.isFalse(c1 is I2);
-
-  var c5 = new C5();
-  Expect.equals(42, c5.foo());
-  Expect.equals(87, c5.bar());
-  Expect.isTrue(c5 is M);
-  Expect.isTrue(c5 is I0);
-  Expect.isTrue(c5 is I1);
-  Expect.isTrue(c5 is I2);
-}
diff --git a/tests/language_2/mixin/implicit_covariance_test.dart b/tests/language_2/mixin/implicit_covariance_test.dart
deleted file mode 100644
index 223cf7f3456..00000000000
--- a/tests/language_2/mixin/implicit_covariance_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-abstract class A<T> {
-  foo(T x);
-}
-
-abstract class B<T> implements A<T> {}
-
-class C {
-  foo(num x) {
-    if (x is! num) {
-      throw "Soundness issue: expected x to be num, got ${x.runtimeType}.";
-    }
-  }
-}
-
-class D<T extends num> extends C with B<T> {}
-
-class E<T extends num> = C with B<T>;
-
-test(B<dynamic> b) {
-  b.foo("bar");
-}
-
-main() {
-  Expect.throws<TypeError>(() => test(new D<int>()));
-  Expect.throws<TypeError>(() => test(new E<int>()));
-}
diff --git a/tests/language_2/mixin/inference_mixin_field_test.dart b/tests/language_2/mixin/inference_mixin_field_test.dart
deleted file mode 100644
index dd593d17598..00000000000
--- a/tests/language_2/mixin/inference_mixin_field_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Mixin {
-  var field;
-  createIt() {
-    if (field == null) field = 42;
-  }
-}
-
-class A {
-  A(foo);
-}
-
-class B extends A with Mixin {
-  // Because [super] references a synthesized constructor, dart2js
-  // used to not see the null assignment to it.
-  B(foo) : super(foo);
-}
-
-main() {
-  var a = new B(42);
-  a.createIt();
-  Expect.equals(42, a.field);
-}
diff --git a/tests/language_2/mixin/interface_check_runtime_test.dart b/tests/language_2/mixin/interface_check_runtime_test.dart
deleted file mode 100644
index b0f38bea915..00000000000
--- a/tests/language_2/mixin/interface_check_runtime_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Thing {}
-
-class SubThing extends Thing {
-  void sub() {}
-}
-
-class A {
-  Thing get thing => new Thing();
-}
-
-abstract class B implements A {
-  @override
-  SubThing get thing;
-}
-
-class C extends A //
-
-
-{}
-
-main() {
-  new C()
-          .thing //
-
-      ;
-}
diff --git a/tests/language_2/mixin/interface_check_test.dart b/tests/language_2/mixin/interface_check_test.dart
deleted file mode 100644
index 136ea4f6322..00000000000
--- a/tests/language_2/mixin/interface_check_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Thing {}
-
-class SubThing extends Thing {
-  void sub() {}
-}
-
-class A {
-  Thing get thing => new Thing();
-}
-
-abstract class B implements A {
-  @override
-  SubThing get thing;
-}
-
-class C extends A //
-//    ^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_IMPLEMENTATION_OVERRIDE
-// [cfe] The implementation of 'thing' in the non-abstract class 'C' does not conform to its interface.
-    with
-        B
-{}
-
-main() {
-  new C()
-          .thing //
-          .sub()
-      ;
-}
diff --git a/tests/language_2/mixin/invalid_bound2_test.dart b/tests/language_2/mixin/invalid_bound2_test.dart
deleted file mode 100644
index b7eaf6456d6..00000000000
--- a/tests/language_2/mixin/invalid_bound2_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class S0<T> {}
-
-class S<U extends num, V extends U> extends S0<String> {}
-
-class M<U extends num, V extends U> {}
-
-class A<U extends num, V extends U> extends S with M {}
-
-// A StaticWarning is reported here and in C, D, and E below, because U and V
-// are not bounded. The purpose of this test is to verify bound checking in S,
-// M, and A, the reason no bounds are declared for U and V here.
-class B<U, V> extends S<U, V> with M<int, int> {} //# 04: continued
-class B<U, V> extends S<U, V> with M<int, int> {} //# 05: continued
-class B<U, V> extends S<U, V> with M<int, int> {} //# 06: continued
-
-class C<U, V> extends S<int, int> with M<U, V> {} //# 07: continued
-class C<U, V> extends S<int, int> with M<U, V> {} //# 08: continued
-class C<U, V> extends S<int, int> with M<U, V> {} //# 09: continued
-
-class D<U, V> extends S<U, V> with M<double, int> {} //# 10: continued
-class D<U, V> extends S<U, V> with M<double, int> {} //# 11: continued
-class D<U, V> extends S<U, V> with M<double, int> {} //# 12: continued
-
-class E<U, V> extends S<double, int> with M<U, V> {} //# 13: continued
-class E<U, V> extends S<double, int> with M<U, V> {} //# 14: continued
-class E<U, V> extends S<double, int> with M<U, V> {} //# 15: continued
-
-main() {
-  new A<int, int>(); //    //# 01: ok
-  new A<double, int>(); // //# 02: compile-time error
-  new A<bool, bool>(); //  //# 03: compile-time error
-  new B<int, int>(); //    //# 04: compile-time error
-  new B<double, int>(); // //# 05: compile-time error
-  new B<bool, bool>(); //  //# 06: compile-time error
-  new C<int, int>(); //    //# 07: compile-time error
-  new C<double, int>(); // //# 08: compile-time error
-  new C<bool, bool>(); //  //# 09: compile-time error
-  new D<int, int>(); //    //# 10: compile-time error
-  new D<double, int>(); // //# 11: compile-time error
-  new D<bool, bool>(); //  //# 12: compile-time error
-  new E<int, int>(); //    //# 13: compile-time error
-  new E<double, int>(); // //# 14: compile-time error
-  new E<bool, bool>(); //  //# 15: compile-time error
-}
diff --git a/tests/language_2/mixin/invalid_bound_test.dart b/tests/language_2/mixin/invalid_bound_test.dart
deleted file mode 100644
index c7103def614..00000000000
--- a/tests/language_2/mixin/invalid_bound_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class S0<T> {}
-
-class S<T extends num> extends S0<String> {}
-
-class M<T extends num> {}
-
-class A<T extends num> extends S with M {}
-
-// A CompileTimeError is reported here and in C, D, and E below, because T is
-// not bounded. The purpose of this test is to verify bound checking in S, M,
-// and A, the reason no bound is declared for T here.
-class B<T> extends S<T> with M<int> {} //# 03: continued
-class B<T> extends S<T> with M<int> {} //# 04: continued
-
-class C<T> extends S<int> with M<T> {} //# 05: continued
-class C<T> extends S<int> with M<T> {} //# 06: continued
-
-class D<T> extends S<T> with M<bool> {} //# 07: continued
-class D<T> extends S<T> with M<bool> {} //# 08: continued
-
-class E<T> extends S<bool> with M<T> {} //# 09: continued
-class E<T> extends S<bool> with M<T> {} //# 10: continued
-
-main() {
-  new A<int>(); //  //# 01: ok
-  new A<bool>(); // //# 02: compile-time error
-  new B<int>(); //  //# 03: compile-time error
-  new B<bool>(); // //# 04: compile-time error
-  new C<int>(); //  //# 05: compile-time error
-  new C<bool>(); // //# 06: compile-time error
-  new D<int>(); //  //# 07: compile-time error
-  new D<bool>(); // //# 08: compile-time error
-  new E<int>(); //  //# 09: compile-time error
-  new E<bool>(); // //# 10: compile-time error
-}
diff --git a/tests/language_2/mixin/invalid_inheritance1_test.dart b/tests/language_2/mixin/invalid_inheritance1_test.dart
deleted file mode 100644
index dfead53c1b8..00000000000
--- a/tests/language_2/mixin/invalid_inheritance1_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class C<T> extends Object
-  with Malformed // //# 01: compile-time error
-  with T //         //# 02: compile-time error
-  with T<int> //    //# 03: compile-time error
-{}
-
-main() => new C<C>();
diff --git a/tests/language_2/mixin/invalid_inheritance2_test.dart b/tests/language_2/mixin/invalid_inheritance2_test.dart
deleted file mode 100644
index 5dca5b5b2d8..00000000000
--- a/tests/language_2/mixin/invalid_inheritance2_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class C<T> = Object with Malformed; // //# 01: compile-time error
-class C<T> = Object with T; //         //# 02: compile-time error
-class C<T> = OBject with T<int>; //    //# 03: compile-time error
-
-main() {
-  new C<C>(); // //# 01: continued
-  new C<C>(); // //# 02: continued
-  new C<C>(); // //# 03: continued
-}
diff --git a/tests/language_2/mixin/invalid_override_in_mixin_runtime_test.dart b/tests/language_2/mixin/invalid_override_in_mixin_runtime_test.dart
deleted file mode 100644
index cca7cdf7ef8..00000000000
--- a/tests/language_2/mixin/invalid_override_in_mixin_runtime_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-class A {
-
-}
-
-class C extends Object with A {
-  test() {
-    print("Hello from test");
-  }
-}
-
-main() {
-  C c = new C();
-  c.test();
-  dynamic cc = c;
-  Expect.throwsNoSuchMethodError(() => cc.doesntExist());
-}
diff --git a/tests/language_2/mixin/invalid_override_in_mixin_test.dart b/tests/language_2/mixin/invalid_override_in_mixin_test.dart
deleted file mode 100644
index 815910b6b2e..00000000000
--- a/tests/language_2/mixin/invalid_override_in_mixin_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class A {
-  noSuchMethod() {}
-//^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-// [cfe] The method 'A.noSuchMethod' has fewer positional arguments than those of overridden method 'Object.noSuchMethod'.
-}
-
-class C extends Object with A {
-//    ^
-// [cfe] Applying the mixin 'A' to 'Object' introduces an erroneous override of 'noSuchMethod'.
-//                          ^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-  test() {
-    print("Hello from test");
-  }
-}
-
-main() {
-  C c = new C();
-  c.test();
-  dynamic cc = c;
-  Expect.throwsNoSuchMethodError(() => cc.doesntExist());
-}
diff --git a/tests/language_2/mixin/is_test.dart b/tests/language_2/mixin/is_test.dart
deleted file mode 100644
index 31b55156f03..00000000000
--- a/tests/language_2/mixin/is_test.dart
+++ /dev/null
@@ -1,85 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class S {}
-
-class M1 {}
-
-class M2 {}
-
-class C = S with M1;
-class D = S with M1, M2;
-class E = S with M2, M1;
-
-class F extends E {}
-
-class C_ = S with M1;
-class D_ = S with M1, M2;
-class E_ = S with M2, M1;
-
-class F_ extends E_ {}
-
-main() {
-  var c = new C();
-  Expect.isTrue(c is C);
-  Expect.isFalse(c is D);
-  Expect.isFalse(c is E);
-  Expect.isFalse(c is F);
-  Expect.isTrue(c is S);
-  Expect.isTrue(c is M1);
-  Expect.isFalse(c is M2);
-
-  var d = new D();
-  Expect.isFalse(d is C);
-  Expect.isTrue(d is D);
-  Expect.isFalse(d is E);
-  Expect.isFalse(d is F);
-  Expect.isTrue(d is S);
-  Expect.isTrue(d is M1);
-  Expect.isTrue(d is M2);
-
-  var e = new E();
-  Expect.isFalse(e is C);
-  Expect.isFalse(e is D);
-  Expect.isTrue(e is E);
-  Expect.isFalse(e is F);
-  Expect.isTrue(e is S);
-  Expect.isTrue(e is M1);
-  Expect.isTrue(e is M2);
-
-  var f = new F();
-  Expect.isFalse(f is C);
-  Expect.isFalse(f is D);
-  Expect.isTrue(f is E);
-  Expect.isTrue(f is F);
-  Expect.isTrue(f is S);
-  Expect.isTrue(f is M1);
-  Expect.isTrue(f is M2);
-
-  // Make sure we get a new class for each mixin
-  // application (at least the named ones).
-  Expect.isFalse(c is C_);
-  Expect.isFalse(c is D_);
-  Expect.isFalse(c is E_);
-  Expect.isFalse(c is F_);
-
-  Expect.isFalse(d is C_);
-  Expect.isFalse(d is D_);
-  Expect.isFalse(d is E_);
-  Expect.isFalse(d is F_);
-
-  Expect.isFalse(e is C_);
-  Expect.isFalse(e is D_);
-  Expect.isFalse(e is E_);
-  Expect.isFalse(e is F_);
-
-  Expect.isFalse(f is C_);
-  Expect.isFalse(f is D_);
-  Expect.isFalse(f is E_);
-  Expect.isFalse(f is F_);
-}
diff --git a/tests/language_2/mixin/issue10216_2_test.dart b/tests/language_2/mixin/issue10216_2_test.dart
deleted file mode 100644
index db268f7ab12..00000000000
--- a/tests/language_2/mixin/issue10216_2_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class M1 = Object with M0;
-class M2 = Object with M1;
-
-class M0 {
-  foo() => 42;
-}
-
-makeM2() {
-  return [new Object(), new M2()].last as M2;
-}
-
-main() {
-  Expect.equals(42, makeM2().foo());
-}
diff --git a/tests/language_2/mixin/issue10216_test.dart b/tests/language_2/mixin/issue10216_test.dart
deleted file mode 100644
index 1a7874ae8b5..00000000000
--- a/tests/language_2/mixin/issue10216_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  foo(x, [y]) => '$x;$y';
-}
-
-class B extends A with M1, M2, M3 {}
-
-class M1 {}
-
-class M2 {
-  plain(x) => 'P $x';
-  bar(x, [y]) => '$y,$x';
-}
-
-class M3 {}
-
-makeB() {
-  return [new A(), new B()].last as B;
-}
-
-main() {
-  var b = makeB();
-  Expect.equals('1;2', b.foo(1, 2));
-  Expect.equals('2;null', b.foo(2));
-  Expect.equals('P 3', b.plain(3));
-  Expect.equals('100,4', b.bar(4, 100));
-  Expect.equals('null,5', b.bar(5));
-}
diff --git a/tests/language_2/mixin/lib_extends_field_lib.dart b/tests/language_2/mixin/lib_extends_field_lib.dart
deleted file mode 100644
index 68318fd9427..00000000000
--- a/tests/language_2/mixin/lib_extends_field_lib.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library mixin_lib_extends_field_lib;
-
-class M1 {
-  final bar = "M1-bar";
-}
-
-class M2 {
-  var baz = "M2-$_baz";
-}
-
-var _baz = "baz";
diff --git a/tests/language_2/mixin/lib_extends_field_test.dart b/tests/language_2/mixin/lib_extends_field_test.dart
deleted file mode 100644
index 1e42915d366..00000000000
--- a/tests/language_2/mixin/lib_extends_field_test.dart
+++ /dev/null
@@ -1,119 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library mixin_lib_extends_field_test;
-
-import 'package:expect/expect.dart';
-import "lib_extends_field_lib.dart" as L;
-
-class S {
-  var foo = "S-foo";
-}
-
-class C extends S with L.M1 {}
-
-class D extends S with L.M1, L.M2 {}
-
-class E extends S with L.M2, L.M1 {}
-
-class F extends E {
-  var fez = "F-fez";
-}
-
-main() {
-  dynamic c = new C();
-  dynamic d = new D();
-  dynamic e = new E();
-  dynamic f = new F();
-
-  Expect.equals("S-foo", c.foo);
-  Expect.equals("S-foo", d.foo);
-  Expect.equals("S-foo", e.foo);
-  Expect.equals("S-foo", f.foo);
-
-  Expect.equals("M1-bar", c.bar);
-  Expect.equals("M1-bar", d.bar);
-  Expect.equals("M1-bar", e.bar);
-  Expect.equals("M1-bar", f.bar);
-
-  Expect.throwsNoSuchMethodError(() => c.baz);
-  Expect.equals("M2-baz", d.baz);
-  Expect.equals("M2-baz", e.baz);
-  Expect.equals("M2-baz", f.baz);
-
-  Expect.throwsNoSuchMethodError(() => c.fez);
-  Expect.throwsNoSuchMethodError(() => d.fez);
-  Expect.throwsNoSuchMethodError(() => e.fez);
-  Expect.equals("F-fez", f.fez);
-
-  c.foo = "S-foo-c";
-  Expect.equals("S-foo-c", c.foo);
-  Expect.equals("S-foo", d.foo);
-  Expect.equals("S-foo", e.foo);
-  Expect.equals("S-foo", f.foo);
-
-  d.foo = "S-foo-d";
-  Expect.equals("S-foo-c", c.foo);
-  Expect.equals("S-foo-d", d.foo);
-  Expect.equals("S-foo", e.foo);
-  Expect.equals("S-foo", f.foo);
-
-  e.foo = "S-foo-e";
-  Expect.equals("S-foo-c", c.foo);
-  Expect.equals("S-foo-d", d.foo);
-  Expect.equals("S-foo-e", e.foo);
-  Expect.equals("S-foo", f.foo);
-
-  f.foo = "S-foo-f";
-  Expect.equals("S-foo-c", c.foo);
-  Expect.equals("S-foo-d", d.foo);
-  Expect.equals("S-foo-e", e.foo);
-  Expect.equals("S-foo-f", f.foo);
-
-  Expect.throwsNoSuchMethodError(() => c.bar = 0);
-  Expect.throwsNoSuchMethodError(() => d.bar = 0);
-  Expect.throwsNoSuchMethodError(() => e.bar = 0);
-  Expect.throwsNoSuchMethodError(() => f.bar = 0);
-  Expect.equals("M1-bar", c.bar);
-  Expect.equals("M1-bar", d.bar);
-  Expect.equals("M1-bar", e.bar);
-  Expect.equals("M1-bar", f.bar);
-
-  Expect.throwsNoSuchMethodError(() => c.baz = 0);
-  Expect.throwsNoSuchMethodError(() => c.baz);
-  Expect.equals("M2-baz", d.baz);
-  Expect.equals("M2-baz", e.baz);
-  Expect.equals("M2-baz", f.baz);
-
-  d.baz = "M2-baz-d";
-  Expect.throwsNoSuchMethodError(() => c.baz);
-  Expect.equals("M2-baz-d", d.baz);
-  Expect.equals("M2-baz", e.baz);
-  Expect.equals("M2-baz", f.baz);
-  Expect.equals("M2-baz", f.baz);
-
-  e.baz = "M2-baz-e";
-  Expect.throwsNoSuchMethodError(() => c.baz);
-  Expect.equals("M2-baz-d", d.baz);
-  Expect.equals("M2-baz-e", e.baz);
-  Expect.equals("M2-baz", f.baz);
-
-  f.baz = "M2-baz-f";
-  Expect.throwsNoSuchMethodError(() => c.baz);
-  Expect.equals("M2-baz-d", d.baz);
-  Expect.equals("M2-baz-e", e.baz);
-  Expect.equals("M2-baz-f", f.baz);
-
-  Expect.throwsNoSuchMethodError(() => c.fez = 0);
-  Expect.throwsNoSuchMethodError(() => d.fez = 0);
-  Expect.throwsNoSuchMethodError(() => e.fez = 0);
-
-  f.fez = "F-fez-f";
-  Expect.throwsNoSuchMethodError(() => c.fez);
-  Expect.throwsNoSuchMethodError(() => d.fez);
-  Expect.throwsNoSuchMethodError(() => e.fez);
-  Expect.equals("F-fez-f", f.fez);
-}
diff --git a/tests/language_2/mixin/lib_extends_method_lib.dart b/tests/language_2/mixin/lib_extends_method_lib.dart
deleted file mode 100644
index 9743324b366..00000000000
--- a/tests/language_2/mixin/lib_extends_method_lib.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library mixin_lib_extends_method_lib;
-
-class M1 {
-  bar() => "M1-bar";
-
-  clo(s) {
-    var l = s;
-    return (s) => "$l$s";
-  }
-}
-
-class M2 {
-  // Make sure mixed-in method has access to library-private names.
-  bar() => _M2_bar();
-  baz() => _M2_baz;
-  fez() => "M2-${_fez()}";
-  _fez() => "fez";
-}
-
-_M2_bar() {
-  return "M2-bar";
-}
-
-var _M2_baz = "M2-baz";
diff --git a/tests/language_2/mixin/lib_extends_method_test.dart b/tests/language_2/mixin/lib_extends_method_test.dart
deleted file mode 100644
index 1a5c7059a86..00000000000
--- a/tests/language_2/mixin/lib_extends_method_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library mixin_lib_extends_method_test;
-
-import "package:expect/expect.dart";
-import "lib_extends_method_lib.dart" as L;
-
-class S {
-  foo() => "S-foo";
-  baz() => "S-baz";
-}
-
-class C extends S with L.M1 {}
-
-class D extends S with L.M1, L.M2 {}
-
-class E extends S with L.M2, L.M1 {}
-
-class F extends E {
-  fez() => "F-fez";
-}
-
-main() {
-  dynamic c = new C();
-  Expect.equals("S-foo", c.foo());
-  Expect.equals("M1-bar", c.bar());
-  Expect.equals("S-baz", c.baz());
-  Expect.throwsNoSuchMethodError(() => c.fez());
-  Expect.equals("sugus", c.clo("su")("gus"));
-
-  var d = new D();
-  Expect.equals("S-foo", d.foo());
-  Expect.equals("M2-bar", d.bar());
-  Expect.equals("M2-baz", d.baz());
-  Expect.equals("M2-fez", d.fez());
-  Expect.equals("sugus", d.clo("su")("gus"));
-
-  var e = new E();
-  Expect.equals("S-foo", e.foo());
-  Expect.equals("M1-bar", e.bar());
-  Expect.equals("M2-baz", e.baz());
-  Expect.equals("M2-fez", e.fez());
-  Expect.equals("sugus", e.clo("su")("gus"));
-
-  var f = new F();
-  Expect.equals("S-foo", f.foo());
-  Expect.equals("M1-bar", f.bar());
-  Expect.equals("M2-baz", f.baz());
-  Expect.equals("F-fez", f.fez());
-  Expect.equals("sugus", f.clo("su")("gus"));
-}
diff --git a/tests/language_2/mixin/method_override_runtime_test.dart b/tests/language_2/mixin/method_override_runtime_test.dart
deleted file mode 100644
index c5711edcef7..00000000000
--- a/tests/language_2/mixin/method_override_runtime_test.dart
+++ /dev/null
@@ -1,164 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Signature conformance test.
-abstract class CII {
-  int id(int x);
-}
-
-class CSI {
-  String id(int x) => "$x";
-}
-
-class CIS {
-  int id(String x) => 0;
-}
-
-class CTT<T> {
-  T id(T x) => x;
-}
-
-// Wrong return type.
-
-
-// Wrong argument type.
-
-
-
-// Similar as the above but using an instantiated class instead.
-abstract class C5 = CII with CTT<int>;
-abstract class C6 extends CII with CTT<int> {}
-
-
-
-// Named parameters
-abstract class NIIx {
-  int id({int x}) => x;
-}
-
-class NIIxy {
-  int id({int x, int y}) => y;
-}
-
-class NIIy {
-  int id({int y}) => y;
-}
-
-class NII {
-  int id(int x) => x;
-}
-
-// It's OK to introduce more named parameters.
-abstract class N1 = NIIx with NIIxy;
-abstract class N2 extends NIIx with NIIxy {}
-// It's NOT OK to rename named parameters.
-
-
-// It's NOT OK to drop named parameters.
-
-
-
-class NBABxy<A, B> {
-  B id ({A x, B y}) => y;
-}
-
-class NTTy<T> {
-  T id({T y}) => y;
-}
-
-class NTTx<T> {
-  T id(T x) => x;
-}
-
-// Same as above but with generic classes.
-abstract class N7 = NIIx with NBABxy<int, int>;
-abstract class N8 extends NIIx with NBABxy<int, int> {}
-
-
-
-
-
-
-
-// Optional positional parameters
-abstract class OII {
-  int id([int x]) => x;
-}
-
-class OIII {
-  int id([int x, int y]) => y;
-}
-
-class OIIy {
-  int id([int y]) => y;
-}
-
-class PII {
-  int id(int x) => x;
-}
-
-// It's OK to introduce more optional parameters.
-abstract class O1 = OII with OIII;
-abstract class O2 extends OII with OIII {}
-// It's OK to rename optional parameters.
-abstract class O3 = OII with OIIy;
-abstract class O4 extends OII with OIIy {}
-// It's NOT OK to drop optional parameters.
-
-
-
-class OBAB<A, B> {
-  B id ([A x, B y]) => y;
-}
-
-class OTTy<T> {
-  T id([T y]) => y;
-}
-
-class PTT<T> {
-  T id(T x) => x;
-}
-
-// Same as above but with generic classes.
-abstract class O7 = OII with OBAB<int, int>;
-abstract class O8 extends OII with OBAB<int, int> {}
-
-
-abstract class O11 = OII with OTTy<int>;
-abstract class O12 extends OII with OTTy<int> {}
-
-
-
-// More tests with generic classes.
-abstract class GTTnum {
-  T id<T extends num>(x);
-}
-
-class MTTnum {
-  T id<T extends num>(x) => x;
-}
-
-class MTTint {
-  T id<T extends int>(x) => x;
-}
-
-class MTT {
-  T id<T>(x) => x;
-}
-
-class MTTnumR {
-  T id<T extends num, R>(x) => x;
-}
-class G1 = GTTnum with MTTnum;
-
-
-
-
-
-void main() {}
diff --git a/tests/language_2/mixin/method_override_test.dart b/tests/language_2/mixin/method_override_test.dart
deleted file mode 100644
index 89023aa5466..00000000000
--- a/tests/language_2/mixin/method_override_test.dart
+++ /dev/null
@@ -1,272 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Signature conformance test.
-abstract class CII {
-  int id(int x);
-}
-
-class CSI {
-  String id(int x) => "$x";
-}
-
-class CIS {
-  int id(String x) => 0;
-}
-
-class CTT<T> {
-  T id(T x) => x;
-}
-
-// Wrong return type.
-abstract class C1 = CII with CIS;
-//             ^
-// [cfe] The mixin application class 'C1' introduces an erroneous override of 'id'.
-//                           ^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-abstract class C2 extends CII with CIS {}
-//             ^
-// [cfe] Applying the mixin 'CIS' to 'CII' introduces an erroneous override of 'id'.
-//                                 ^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-
-
-// Wrong argument type.
-abstract class C3 = CII with CSI;
-//             ^
-// [cfe] The mixin application class 'C3' introduces an erroneous override of 'id'.
-//                           ^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-abstract class C4 extends CII with CSI {}
-//             ^
-// [cfe] Applying the mixin 'CSI' to 'CII' introduces an erroneous override of 'id'.
-//                                 ^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-
-// Similar as the above but using an instantiated class instead.
-abstract class C5 = CII with CTT<int>;
-abstract class C6 extends CII with CTT<int> {}
-abstract class C7  = CII with CTT<String>;
-//             ^
-// [cfe] The mixin application class 'C7' introduces an erroneous override of 'id'.
-//                            ^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-abstract class C8 extends CII with CTT<String> {}
-//             ^
-// [cfe] Applying the mixin 'CTT' to 'CII' introduces an erroneous override of 'id'.
-//                                 ^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-
-// Named parameters
-abstract class NIIx {
-  int id({int x}) => x;
-}
-
-class NIIxy {
-  int id({int x, int y}) => y;
-}
-
-class NIIy {
-  int id({int y}) => y;
-}
-
-class NII {
-  int id(int x) => x;
-}
-
-// It's OK to introduce more named parameters.
-abstract class N1 = NIIx with NIIxy;
-abstract class N2 extends NIIx with NIIxy {}
-// It's NOT OK to rename named parameters.
-abstract class N3 = NIIx with NIIy;
-//             ^
-// [cfe] The mixin application class 'N3' introduces an erroneous override of 'id'.
-//                            ^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-abstract class N4 extends NIIx with NIIy {}
-//             ^
-// [cfe] Applying the mixin 'NIIy' to 'NIIx' introduces an erroneous override of 'id'.
-//                                  ^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-
-
-// It's NOT OK to drop named parameters.
-abstract class N5 = NIIx with NII;
-//             ^
-// [cfe] The mixin application class 'N5' introduces an erroneous override of 'id'.
-//                            ^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-abstract class N6 extends NIIx with NII {}
-//             ^
-// [cfe] Applying the mixin 'NII' to 'NIIx' introduces an erroneous override of 'id'.
-//                                  ^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-
-class NBABxy<A, B> {
-  B id ({A x, B y}) => y;
-}
-
-class NTTy<T> {
-  T id({T y}) => y;
-}
-
-class NTTx<T> {
-  T id(T x) => x;
-}
-
-// Same as above but with generic classes.
-abstract class N7 = NIIx with NBABxy<int, int>;
-abstract class N8 extends NIIx with NBABxy<int, int> {}
-abstract class N9 = NIIx with NBABxy<String, int>;
-//             ^
-// [cfe] The mixin application class 'N9' introduces an erroneous override of 'id'.
-//                            ^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-abstract class N10 extends NIIx with NBABxy<String, int> {}
-//             ^
-// [cfe] Applying the mixin 'NBABxy' to 'NIIx' introduces an erroneous override of 'id'.
-//                                   ^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-abstract class N11 = NIIx with NTTy<int>;
-//             ^
-// [cfe] The mixin application class 'N11' introduces an erroneous override of 'id'.
-//                             ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-abstract class N12 extends NIIx with NTTy<int> {}
-//             ^
-// [cfe] Applying the mixin 'NTTy' to 'NIIx' introduces an erroneous override of 'id'.
-//                                   ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-abstract class N13 = NIIx with NTTx<int>;
-//             ^
-// [cfe] The mixin application class 'N13' introduces an erroneous override of 'id'.
-//                             ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-abstract class N14 extends NIIx with NTTx<int> {}
-//             ^
-// [cfe] Applying the mixin 'NTTx' to 'NIIx' introduces an erroneous override of 'id'.
-//                                   ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-
-// Optional positional parameters
-abstract class OII {
-  int id([int x]) => x;
-}
-
-class OIII {
-  int id([int x, int y]) => y;
-}
-
-class OIIy {
-  int id([int y]) => y;
-}
-
-class PII {
-  int id(int x) => x;
-}
-
-// It's OK to introduce more optional parameters.
-abstract class O1 = OII with OIII;
-abstract class O2 extends OII with OIII {}
-// It's OK to rename optional parameters.
-abstract class O3 = OII with OIIy;
-abstract class O4 extends OII with OIIy {}
-// It's NOT OK to drop optional parameters.
-abstract class O5 = OII with PII;
-//             ^
-// [cfe] The mixin application class 'O5' introduces an erroneous override of 'id'.
-//                           ^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-abstract class O6 extends OII with PII {}
-//             ^
-// [cfe] Applying the mixin 'PII' to 'OII' introduces an erroneous override of 'id'.
-//                                 ^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-
-class OBAB<A, B> {
-  B id ([A x, B y]) => y;
-}
-
-class OTTy<T> {
-  T id([T y]) => y;
-}
-
-class PTT<T> {
-  T id(T x) => x;
-}
-
-// Same as above but with generic classes.
-abstract class O7 = OII with OBAB<int, int>;
-abstract class O8 extends OII with OBAB<int, int> {}
-abstract class O9 = OII with OBAB<String, int>;
-//             ^
-// [cfe] The mixin application class 'O9' introduces an erroneous override of 'id'.
-//                           ^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-abstract class O10 extends OII with OBAB<String, int> {}
-//             ^
-// [cfe] Applying the mixin 'OBAB' to 'OII' introduces an erroneous override of 'id'.
-//                                  ^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-abstract class O11 = OII with OTTy<int>;
-abstract class O12 extends OII with OTTy<int> {}
-abstract class O13 = OII with PTT<int>;
-//             ^
-// [cfe] The mixin application class 'O13' introduces an erroneous override of 'id'.
-//                            ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-abstract class O14 extends OII with PTT<int> {}
-//             ^
-// [cfe] Applying the mixin 'PTT' to 'OII' introduces an erroneous override of 'id'.
-//                                  ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-
-// More tests with generic classes.
-abstract class GTTnum {
-  T id<T extends num>(x);
-}
-
-class MTTnum {
-  T id<T extends num>(x) => x;
-}
-
-class MTTint {
-  T id<T extends int>(x) => x;
-}
-
-class MTT {
-  T id<T>(x) => x;
-}
-
-class MTTnumR {
-  T id<T extends num, R>(x) => x;
-}
-class G1 = GTTnum with MTTnum;
-class G2 = GTTnum with MTTint;
-//    ^
-// [cfe] The mixin application class 'G2' introduces an erroneous override of 'id'.
-//                     ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-class G3 = GTTnum with MTT;
-//    ^
-// [cfe] The mixin application class 'G3' introduces an erroneous override of 'id'.
-//                     ^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-class G4 = GTTnum with MTTnumR;
-//    ^
-// [cfe] The mixin application class 'G4' introduces an erroneous override of 'id'.
-//                     ^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-class G5 = GTTnum with CII;
-//    ^^
-// [analyzer] COMPILE_TIME_ERROR.NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER
-// [cfe] The mixin application class 'G5' introduces an erroneous override of 'id'.
-//    ^
-// [cfe] The non-abstract class 'G5' is missing implementations for these members:
-//                     ^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-
-void main() {}
diff --git a/tests/language_2/mixin/method_test.dart b/tests/language_2/mixin/method_test.dart
deleted file mode 100644
index f6787dad2eb..00000000000
--- a/tests/language_2/mixin/method_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class S {
-  foo() => "S-foo";
-  baz() => "S-baz";
-}
-
-class M1 {
-  bar() => "M1-bar";
-}
-
-class M2 {
-  bar() => "M2-bar";
-  baz() => "M2-baz";
-  fez() => "M2-fez";
-}
-
-class C = S with M1;
-class D = S with M1, M2;
-class E = S with M2, M1;
-
-class F extends E {
-  fez() => "F-fez";
-}
-
-main() {
-  dynamic c = new C();
-  Expect.equals("S-foo", c.foo());
-  Expect.equals("M1-bar", c.bar());
-  Expect.equals("S-baz", c.baz());
-  Expect.throwsNoSuchMethodError(() => c.fez());
-
-  var d = new D();
-  Expect.equals("S-foo", d.foo());
-  Expect.equals("M2-bar", d.bar());
-  Expect.equals("M2-baz", d.baz());
-  Expect.equals("M2-fez", d.fez());
-
-  var e = new E();
-  Expect.equals("S-foo", e.foo());
-  Expect.equals("M1-bar", e.bar());
-  Expect.equals("M2-baz", e.baz());
-  Expect.equals("M2-fez", e.fez());
-
-  var f = new F();
-  Expect.equals("S-foo", f.foo());
-  Expect.equals("M1-bar", f.bar());
-  Expect.equals("M2-baz", f.baz());
-  Expect.equals("F-fez", f.fez());
-}
diff --git a/tests/language_2/mixin/mixin2_test.dart b/tests/language_2/mixin/mixin2_test.dart
deleted file mode 100644
index ae37057cc82..00000000000
--- a/tests/language_2/mixin/mixin2_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class M<T> {
-  t() {
-    return T;
-  }
-}
-
-class A<U> = Object with M<U>;
-
-class B<V> = Object with A<V>;
-
-class C<U> = Object with M<List<U>>;
-
-class D<V> = Object with C<Set<V>>;
-
-class E extends A<num> {}
-
-class F extends B<String> {}
-
-class G<T> extends C<T> {}
-
-class H<T> extends D<Map<String, T>> {}
-
-main() {
-  Expect.equals("num", new E().t().toString());
-  Expect.equals("String", new F().t().toString());
-  Expect.equals("List<bool>", new G<bool>().t().toString());
-  Expect.equals("List<Set<Map<String, int>>>", new H<int>().t().toString());
-}
diff --git a/tests/language_2/mixin/mixin3_test.dart b/tests/language_2/mixin/mixin3_test.dart
deleted file mode 100644
index 13b9d0495d7..00000000000
--- a/tests/language_2/mixin/mixin3_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class M<T> {
-  t() {
-    return T;
-  }
-}
-
-class A<U> = Object with M<List<U>>;
-
-class B0 = Object with A<Set<bool>>;
-
-class B1 = Object with A<Set<int>>;
-
-class C0 extends B0 {}
-
-class C1 extends B1 {}
-
-class A2<K, V> = Object with M<Map<K, V>>;
-
-class B2<V> = Object with A2<Set<V>, List<V>>;
-
-class B3<K, V> = Object with A2<Set<K>, List<V>>;
-
-class C2<T> extends B2<T> {}
-
-class C3<T> extends B3<T, int> {}
-
-class N {
-  q() {
-    return 42;
-  }
-}
-
-class O<U> = Object with N;
-
-class P<K, V> = Object with O<V>;
-
-class Q<K, V> extends P<K, V> {}
-
-main() {
-  Expect.equals("List<Set<bool>>", new C0().t().toString());
-  Expect.equals("List<Set<int>>", new C1().t().toString());
-  Expect.equals("Map<Set<bool>, List<bool>>", new C2<bool>().t().toString());
-  Expect.equals("Map<Set<bool>, List<int>>", new C3<bool>().t().toString());
-  Expect.equals(42, new Q<bool, int>().q());
-}
diff --git a/tests/language_2/mixin/mixin4_test.dart b/tests/language_2/mixin/mixin4_test.dart
deleted file mode 100644
index d0c61b3c054..00000000000
--- a/tests/language_2/mixin/mixin4_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<T> {}
-
-class J<T> {}
-
-class S<T> {}
-
-class M<T> {
-  t() {
-    return T;
-  }
-}
-
-class A<U, V> = Object with M<Map<U, V>> implements I<V>;
-
-class C<T, K> = S<T> with A<T, List<K>> implements J<K>;
-
-main() {
-  var c = new C<int, bool>();
-  Expect.equals("Map<int, List<bool>>", c.t().toString());
-  Expect.isTrue(c is I<List<bool>>);
-  Expect.isTrue(c is J<bool>);
-  Expect.isTrue(c is S<int>);
-  Expect.isTrue(c is A<int, List<bool>>);
-  Expect.isTrue(c is M<Map<int, List<bool>>>);
-}
diff --git a/tests/language_2/mixin/mixin5_test.dart b/tests/language_2/mixin/mixin5_test.dart
deleted file mode 100644
index 4497cc42730..00000000000
--- a/tests/language_2/mixin/mixin5_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<T> {}
-
-class J<T> {}
-
-class K<T> {}
-
-class S<T> {}
-
-class M<T> {
-  m() {
-    return T;
-  }
-}
-
-class A<U, V> = Object with M<Map<U, V>> implements I<V>;
-
-class B<T> = Object with A<T, Set<T>> implements J<T>;
-
-class C<T> = S<List<T>> with B<List<T>> implements K<T>;
-
-main() {
-  var c = new C<int>();
-  Expect.equals("Map<List<int>, Set<List<int>>>", c.m().toString());
-  Expect.isTrue(c is K<int>);
-  Expect.isTrue(c is J<List<int>>);
-  Expect.isTrue(c is I<Set<List<int>>>);
-  Expect.isTrue(c is S<List<int>>);
-  Expect.isTrue(c is A<List<int>, Set<List<int>>>);
-  Expect.isTrue(c is M<Map<List<int>, Set<List<int>>>>);
-}
diff --git a/tests/language_2/mixin/mixin6_test.dart b/tests/language_2/mixin/mixin6_test.dart
deleted file mode 100644
index cd8c8be9a60..00000000000
--- a/tests/language_2/mixin/mixin6_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<T> {}
-
-class J<T> {}
-
-class K<T> {}
-
-class S<T> {}
-
-class M<T> {
-  m() {
-    return T;
-  }
-}
-
-class A<U, V> = Object with M<Map<U, V>> implements I<V>;
-
-class B<T> = Object with A<T, Set<T>> implements J<T>;
-
-class C<T> = S<List<T>> with B implements K<T>; // B is raw.
-
-main() {
-  var c = new C<int>();
-  Expect.equals("Map<dynamic, Set<dynamic>>", c.m().toString());
-  Expect.isTrue(c is K<int>);
-  Expect.isTrue(c is J);
-  Expect.isTrue(c is I<Set>);
-  Expect.isTrue(c is S<List<int>>);
-  Expect.isTrue(c is A<dynamic, Set>);
-  Expect.isTrue(c is M<Map<dynamic, Set>>);
-}
diff --git a/tests/language_2/mixin/mixin7_test.dart b/tests/language_2/mixin/mixin7_test.dart
deleted file mode 100644
index d6b484f0f92..00000000000
--- a/tests/language_2/mixin/mixin7_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<T> {}
-
-class J<T> {}
-
-class K<T> {}
-
-class S<T> {}
-
-class M<T> {
-  m() {
-    return T;
-  }
-}
-
-class A<U, V> = Object with M implements I<V>; // M is raw.
-
-class B<T> = Object with A implements J<T>; // A is raw.
-
-class C<T> = S<List<T>> with B implements K<T>; // B is raw.
-
-main() {
-  var c = new C<int>();
-  Expect.equals("dynamic", c.m().toString());
-  Expect.isTrue(c is K<int>);
-  Expect.isTrue(c is J);
-  Expect.isTrue(c is I);
-  Expect.isTrue(c is S<List<int>>);
-  Expect.isTrue(c is A);
-  Expect.isTrue(c is M);
-}
diff --git a/tests/language_2/mixin/mixin_bound2_test.dart b/tests/language_2/mixin/mixin_bound2_test.dart
deleted file mode 100644
index 524aa6e530e..00000000000
--- a/tests/language_2/mixin/mixin_bound2_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<T> {}
-
-class J<T> {}
-
-class K<T> {}
-
-class S<U extends Set<V>, V> {}
-
-class M<U, V, T extends Map<U, V>> {
-  m() {
-    return T;
-  }
-}
-
-class A<U, V extends Set<U>> = Object with M<U, V, Map<U, V>> implements I<V>;
-
-class B<T extends List<num>> = Object with A<T, Set<T>> implements J<T>;
-
-class C<T extends num> = S<Set<T>, T> with B<List<T>> implements K<T>;
-
-main() {
-  var c = new C<int>();
-  Expect.equals("Map<List<int>, Set<List<int>>>", c.m().toString());
-  Expect.isTrue(c is K<int>);
-  Expect.isTrue(c is J<List<int>>);
-  Expect.isTrue(c is I<Set<List<int>>>);
-  Expect.isTrue(c is S<Set<int>, int>);
-  Expect.isTrue(c is A<List<int>, Set<List<int>>>);
-  Expect.isTrue(
-      c is M<List<int>, Set<List<int>>, Map<List<int>, Set<List<int>>>>);
-}
diff --git a/tests/language_2/mixin/mixin_bound_test.dart b/tests/language_2/mixin/mixin_bound_test.dart
deleted file mode 100644
index 764fc2670ea..00000000000
--- a/tests/language_2/mixin/mixin_bound_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<T> {}
-
-class J<T> {}
-
-class S<U extends Set<V>, V> {}
-
-class M<U, V, T extends Map<U, V>> {
-  t() {
-    return T;
-  }
-}
-
-class A<U, V extends List> = Object with M<U, V, Map<U, V>> implements I<V>;
-
-class C<T, K> = S<Set<T>, T> with A<T, List<K>> implements J<K>;
-
-main() {
-  var c = new C<int, bool>();
-  Expect.equals("Map<int, List<bool>>", c.t().toString());
-  Expect.isTrue(c is I<List<bool>>);
-  Expect.isTrue(c is J<bool>);
-  Expect.isTrue(c is S<Set<int>, int>);
-  Expect.isTrue(c is A<int, List<bool>>);
-  Expect.isTrue(c is M<int, List<bool>, Map<int, List<bool>>>);
-}
diff --git a/tests/language_2/mixin/mixin_test.dart b/tests/language_2/mixin/mixin_test.dart
deleted file mode 100644
index 76fab896fd6..00000000000
--- a/tests/language_2/mixin/mixin_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class M1 {
-  foo() => 42;
-}
-
-class M2 = Object with M1;
-
-class S {}
-
-class C = S with M2;
-
-main() {
-  var c = new C();
-  Expect.isTrue(c is S);
-  Expect.isTrue(c is M1);
-  Expect.isTrue(c is M2);
-  Expect.isTrue(c is C);
-  Expect.equals(42, c.foo());
-}
diff --git a/tests/language_2/mixin/mixin_type_arguments_test.dart b/tests/language_2/mixin/mixin_type_arguments_test.dart
deleted file mode 100644
index 4730c648789..00000000000
--- a/tests/language_2/mixin/mixin_type_arguments_test.dart
+++ /dev/null
@@ -1,99 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart' show Expect;
-
-@pragma("vm:entry-point") // Prevent obfuscation
-class A {}
-
-@pragma("vm:entry-point") // Prevent obfuscation
-class B {}
-
-@pragma("vm:entry-point") // Prevent obfuscation
-class C {}
-
-@pragma("vm:entry-point") // Prevent obfuscation
-class D {}
-
-@pragma("vm:entry-point") // Prevent obfuscation
-class E {}
-
-@pragma("vm:entry-point") // Prevent obfuscation
-class F {}
-
-@pragma("vm:entry-point") // Prevent obfuscation
-class M1<Tm1> {
-  m1() => "M1<$Tm1>";
-}
-
-@pragma("vm:entry-point") // Prevent obfuscation
-class M2<Tm2> {
-  m2() => "M2<$Tm2>";
-}
-
-@pragma("vm:entry-point") // Prevent obfuscation
-class M3<Tm3> {
-  m3() => "M3<$Tm3>";
-}
-
-@pragma("vm:entry-point") // Prevent obfuscation
-class M4<Tm4> {
-  m4() => "M4<$Tm4>";
-}
-
-@pragma("vm:entry-point") // Prevent obfuscation
-class M5<Tm5> {
-  m5() => "M5<$Tm5>";
-}
-
-class C1 = Object with M1, M2<A>, M3, M4<B>, M5<C>;
-
-class C2 = Object with M1<A>, M2<B>, M3<C>, M4<D>, M5<E>;
-
-class C3<T> = Object with M1<A>, M2<T>, M3, M4, M5<B>;
-
-class C4 extends Object with M1, M2<A>, M3, M4<B>, M5<C> {}
-
-class C5 extends Object with M1<A>, M2<B>, M3<C>, M4<D>, M5<E> {}
-
-class C6<T> extends Object with M1<A>, M2<T>, M3, M4, M5<B> {}
-
-class C7 = Object with M1<A>, M2<A>, M3<A>, M4<A>, M5<A>;
-
-class C8 extends Object with M1<A>, M2<A>, M3<A>, M4<A>, M5<A> {}
-
-class C9 = Object
-    with M1<List<A>>, M2<List<A>>, M3<List<A>>, M4<List<A>>, M5<List<A>>;
-
-class CA extends Object
-    with M1<List<A>>, M2<List<A>>, M3<List<A>>, M4<List<A>>, M5<List<A>> {}
-
-trace(x) => "${x.m1()}, ${x.m2()}, ${x.m3()}, ${x.m4()}, ${x.m5()}";
-
-main() {
-  Expect.stringEquals(
-      "M1<dynamic>, M2<A>, M3<dynamic>, M4<B>, M5<C>", trace(new C1()));
-  Expect.stringEquals("M1<A>, M2<B>, M3<C>, M4<D>, M5<E>", trace(new C2()));
-  Expect.stringEquals(
-      "M1<A>, M2<dynamic>, M3<dynamic>, M4<dynamic>, M5<B>", trace(new C3()));
-  Expect.stringEquals(
-      "M1<A>, M2<F>, M3<dynamic>, M4<dynamic>, M5<B>", trace(new C3<F>()));
-  Expect.stringEquals(
-      "M1<dynamic>, M2<A>, M3<dynamic>, M4<B>, M5<C>", trace(new C4()));
-  Expect.stringEquals("M1<A>, M2<B>, M3<C>, M4<D>, M5<E>", trace(new C5()));
-  Expect.stringEquals(
-      "M1<A>, M2<dynamic>, M3<dynamic>, M4<dynamic>, M5<B>", trace(new C6()));
-  Expect.stringEquals(
-      "M1<A>, M2<F>, M3<dynamic>, M4<dynamic>, M5<B>", trace(new C6<F>()));
-  Expect.stringEquals("M1<A>, M2<A>, M3<A>, M4<A>, M5<A>", trace(new C7()));
-  Expect.stringEquals("M1<A>, M2<A>, M3<A>, M4<A>, M5<A>", trace(new C8()));
-  Expect.stringEquals(
-      "M1<List<A>>, M2<List<A>>, M3<List<A>>, M4<List<A>>, M5<List<A>>",
-      trace(new C9()));
-  Expect.stringEquals(
-      "M1<List<A>>, M2<List<A>>, M3<List<A>>, M4<List<A>>, M5<List<A>>",
-      trace(new CA()));
-}
diff --git a/tests/language_2/mixin/named_constructor_test.dart b/tests/language_2/mixin/named_constructor_test.dart
deleted file mode 100644
index f8cb8f97ad5..00000000000
--- a/tests/language_2/mixin/named_constructor_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var calls = <String>[];
-
-abstract class A {
-  bool _done = true;
-  var a = calls.add('A()') as dynamic;
-}
-
-abstract class B {
-  B.protected() {
-    calls.add('B.protected()');
-  }
-}
-
-class C extends B with A {
-  C() : super.protected() {
-    calls.add('C()');
-  }
-}
-
-void main() {
-  var c = new C();
-  Expect.isTrue(c._done);
-  Expect.equals(calls.join(', '), 'A(), B.protected(), C()');
-}
diff --git a/tests/language_2/mixin/naming_test.dart b/tests/language_2/mixin/naming_test.dart
deleted file mode 100644
index 4ad1455dc71..00000000000
--- a/tests/language_2/mixin/naming_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class S {}
-
-class M1 {}
-
-class M2 {}
-
-class M3 {}
-
-class C = S with M1, M2, M3;
-
-class D extends S with M1, M2, M3 {}
-
-class S_M1 {}
-
-class S_M1_M2 {}
-
-main() {
-  var c = new C();
-  Expect.isTrue(c is C);
-  Expect.isFalse(c is D);
-  Expect.isTrue(c is S);
-  Expect.isFalse(c is S_M1);
-  Expect.isFalse(c is S_M1_M2);
-
-  var d = new D();
-  Expect.isFalse(d is C);
-  Expect.isTrue(d is D);
-  Expect.isTrue(d is S);
-  Expect.isFalse(d is S_M1);
-  Expect.isFalse(d is S_M1_M2);
-
-  var sm = new S_M1();
-  Expect.isFalse(sm is C);
-  Expect.isFalse(sm is D);
-  Expect.isFalse(sm is S);
-  Expect.isTrue(sm is S_M1);
-  Expect.isFalse(sm is S_M1_M2);
-
-  var smm = new S_M1_M2();
-  Expect.isFalse(smm is C);
-  Expect.isFalse(smm is D);
-  Expect.isFalse(smm is S);
-  Expect.isFalse(smm is S_M1);
-  Expect.isTrue(smm is S_M1_M2);
-}
diff --git a/tests/language_2/mixin/only_for_rti_test.dart b/tests/language_2/mixin/only_for_rti_test.dart
deleted file mode 100644
index 501e94731b1..00000000000
--- a/tests/language_2/mixin/only_for_rti_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Tester<T> {
-  testGenericType(x) {
-    return x is T;
-  }
-}
-
-abstract class A = B with C;
-
-class B {}
-
-class C {}
-
-class X extends Y with Z {}
-
-class Y {}
-
-class Z {}
-
-main() {
-  // Classes A and X are only used as generic arguments.
-  Expect.isFalse(new Tester<A>().testGenericType(new Object()));
-  Expect.isFalse(new Tester<X>().testGenericType(new Object()));
-}
diff --git a/tests/language_2/mixin/override_regression_test.dart b/tests/language_2/mixin/override_regression_test.dart
deleted file mode 100644
index 08b95b271c9..00000000000
--- a/tests/language_2/mixin/override_regression_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C0 {
-  int m1() => 5;
-  int m2() => m1();
-}
-
-class C1 = Object with C0;
-
-class D {
-  int m1() => 7;
-}
-
-class E0 extends C0 with D {}
-
-class E1 extends C1 with D {}
-
-main() {
-  Expect.equals(7, new E0().m2());
-  Expect.equals(7, new E1().m2());
-}
diff --git a/tests/language_2/mixin/prefix_lib.dart b/tests/language_2/mixin/prefix_lib.dart
deleted file mode 100644
index 25894fcb2e5..00000000000
--- a/tests/language_2/mixin/prefix_lib.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library mixin_prefix_lib;
-
-import "dart:convert";
-
-class MixinClass {
-  String bar() => json.encode({'a': 1});
-}
diff --git a/tests/language_2/mixin/prefix_test.dart b/tests/language_2/mixin/prefix_test.dart
deleted file mode 100644
index 0572b8f8a5d..00000000000
--- a/tests/language_2/mixin/prefix_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 11891.
-
-import "package:expect/expect.dart";
-import "prefix_lib.dart";
-
-class A extends Object with MixinClass {
-  String baz() => bar();
-}
-
-void main() {
-  var a = new A();
-  Expect.equals('{"a":1}', a.baz());
-}
diff --git a/tests/language_2/mixin/proto_test.dart b/tests/language_2/mixin/proto_test.dart
deleted file mode 100644
index 5291acf707e..00000000000
--- a/tests/language_2/mixin/proto_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that a program in csp mode doesn't access the prototype chain
-// on platforms that don't support direct access to __proto__.
-// This test is most useful with --csp and on a platform that doesn't support
-// __proto__ access (such as Rhino).
-// See http://dartbug.com/27290 .
-
-import 'package:expect/expect.dart';
-
-class A {
-  var x;
-  foo() => 44;
-  bar() => 22;
-}
-
-class B {
-  var y;
-  foo() => 42;
-}
-
-class C extends A with B {
-  var z;
-  bar() => 499;
-}
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-main() {
-  var all = [new A(), new B(), new C()];
-  Expect.equals(44, confuse(all[0]).foo());
-  Expect.equals(22, confuse(all[0]).bar());
-  Expect.equals(42, confuse(all[1]).foo());
-  Expect.equals(42, confuse(all[2]).foo());
-  Expect.equals(499, confuse(all[2]).bar());
-}
diff --git a/tests/language_2/mixin/recursive_mixin_test.dart b/tests/language_2/mixin/recursive_mixin_test.dart
deleted file mode 100644
index 446af199793..00000000000
--- a/tests/language_2/mixin/recursive_mixin_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  bool foo(T x) => true;
-}
-
-class B extends Object with A<B>, C<B> {}
-
-// Tests #31290
-class C<T> {}
-
-main() {
-  var b = new B();
-  Expect.isTrue(b is B);
-  Expect.isTrue(b is A);
-  Expect.isTrue(b is C);
-
-  // Verify that runtime checking enforces A<B> instead of A
-  dynamic d = b;
-  Expect.isTrue(d.foo(b));
-  Expect.throws(() => d.foo(42));
-}
diff --git a/tests/language_2/mixin/regress_11398_test.dart b/tests/language_2/mixin/regress_11398_test.dart
deleted file mode 100644
index f5f5c4772bd..00000000000
--- a/tests/language_2/mixin/regress_11398_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  var hva = new HasValueA();
-  hva.value = '42';
-  Expect.equals('42', hva.value);
-
-  var hvb = new HasValueB();
-  hvb.value = '87';
-  Expect.equals('87', hvb.value);
-
-  var hvc = new HasValueC();
-  hvc.value = '99';
-  Expect.equals('99', hvc.value);
-}
-
-abstract class Delegate {
-  String invoke(String value);
-}
-
-abstract class DelegateMixin {
-  String invoke(String value) => value;
-}
-
-abstract class HasValueMixin implements Delegate {
-  String _value;
-  set value(String value) {
-    _value = invoke(value);
-  }
-
-  String get value => _value;
-}
-
-class HasValueA extends Object with HasValueMixin, DelegateMixin {}
-
-class HasValueB extends Object with DelegateMixin, HasValueMixin {}
-
-class HasValueC extends Object with HasValueMixin {
-  String invoke(String value) => value;
-}
diff --git a/tests/language_2/mixin/regress_13688_test.dart b/tests/language_2/mixin/regress_13688_test.dart
deleted file mode 100644
index ed86fc9d85d..00000000000
--- a/tests/language_2/mixin/regress_13688_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class ComparableMixin<E> {
-  e() {
-    return E;
-  }
-}
-
-class KUID extends Object with ComparableMixin<KUID> {}
-
-main() {
-  var kuid = new KUID();
-  Expect.equals(kuid.runtimeType.toString(), kuid.e().toString());
-}
diff --git a/tests/language_2/mixin/regress_47645_test.dart b/tests/language_2/mixin/regress_47645_test.dart
deleted file mode 100644
index 27885e9262a..00000000000
--- a/tests/language_2/mixin/regress_47645_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Regression test for https://github.com/dart-lang/sdk/issues/47645.
-// To reproduce the issue the class declaration must appear before the mixin
-// declaration.
-class C<T> with M<C<T>> {}
-
-mixin M<T> {
-  bool fn() => true;
-}
-
-void main() {
-  var c = C<int>();
-  Expect.isTrue(c.fn());
-}
diff --git a/tests/language_2/mixin/regress_flutter_55345_const_test.dart b/tests/language_2/mixin/regress_flutter_55345_const_test.dart
deleted file mode 100644
index 797aacad5cc..00000000000
--- a/tests/language_2/mixin/regress_flutter_55345_const_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verifies that references to deduplicated mixins are properly updated
-// in types which are only accessible through constants.
-// Regression test for https://github.com/flutter/flutter/issues/55345.
-
-class Diagnosticable {}
-
-class SomeClass with Diagnosticable {}
-
-class State<T> with Diagnosticable {
-  const State();
-}
-
-class StateA extends State {
-  const StateA();
-}
-
-class StateB extends State<int> {
-  const StateB();
-}
-
-const c1 = StateA();
-const c2 = StateB();
-
-main() {
-  print(const [
-    {
-      (c1 ?? c2): [
-        [c1 ?? c2]
-      ]
-    },
-    'abc'
-  ]);
-  // No compile time or runtime errors.
-}
diff --git a/tests/language_2/mixin/regress_flutter_55345_test.dart b/tests/language_2/mixin/regress_flutter_55345_test.dart
deleted file mode 100644
index e9612ca9e0d..00000000000
--- a/tests/language_2/mixin/regress_flutter_55345_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verifies that references to deduplicated mixins are properly updated.
-// Regression test for https://github.com/flutter/flutter/issues/55345.
-
-class Diagnosticable {}
-
-class SomeClass with Diagnosticable {}
-
-class State<T> with Diagnosticable {}
-
-class StateA extends State {}
-
-class StateB extends State<int> {}
-
-StateA a = StateA();
-StateB b = StateB();
-
-List<T> foo<T>(T x) {
-  print(T);
-  return <T>[x];
-}
-
-T Function<S extends T>(T) bar<T>(T x) {
-  print(T);
-
-  return <S extends T>(T y) {
-    print(S);
-    print(y);
-    return y;
-  };
-}
-
-main() {
-  State x1 = a ?? b;
-  print(x1);
-
-  var x2 = a ?? b;
-  var x3 = foo(x2);
-  var x4 = bar(x3);
-  x4(x3);
-  // No compile time or runtime errors.
-}
diff --git a/tests/language_2/mixin/regress_flutter_66859_1_test.dart b/tests/language_2/mixin/regress_flutter_66859_1_test.dart
deleted file mode 100644
index 1f4b34d1788..00000000000
--- a/tests/language_2/mixin/regress_flutter_66859_1_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verifies that mixin supertypes are properly maintained even if marked as
-// deferred (e.g., in a circular hierarchy).
-// Regression test for: https://github.com/flutter/flutter/issues/66859
-
-import "package:expect/expect.dart";
-
-mixin M {}
-
-mixin N {}
-
-class A extends B<C> with M, N {}
-
-class B<T> {}
-
-class C extends A {}
-
-class Z extends B<Z> with M {}
-
-main() {
-  var z = Z();
-  Expect.isTrue(z is B<Z>);
-  Expect.isTrue(z is M);
-  var a = A();
-  Expect.isTrue(a is M);
-  Expect.isTrue(a is N);
-  Expect.isTrue(a is B<C>);
-}
diff --git a/tests/language_2/mixin/regress_flutter_66859_2_test.dart b/tests/language_2/mixin/regress_flutter_66859_2_test.dart
deleted file mode 100644
index d0d735c55e9..00000000000
--- a/tests/language_2/mixin/regress_flutter_66859_2_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verifies that mixin supertypes are properly maintained even if marked as
-// deferred (e.g., in a circular hierarchy).
-// Regression test for: https://github.com/flutter/flutter/issues/66859
-
-import "package:expect/expect.dart";
-
-mixin X {}
-mixin Y {}
-mixin Z {}
-
-class A extends B<C> with X {}
-
-class C extends A with Z {}
-
-class B<T> extends Object with Y {}
-
-main() {
-  var a = A();
-  var b = B();
-  var c = C();
-  Expect.isTrue(a is A);
-  Expect.isTrue(a is B<C>);
-  Expect.isTrue(a is X);
-  Expect.isTrue(a is Y);
-  Expect.isTrue(c is C);
-  Expect.isTrue(c is A);
-  Expect.isTrue(c is B<C>);
-  Expect.isTrue(c is X);
-  Expect.isTrue(c is Y);
-  Expect.isTrue(c is Z);
-  Expect.isTrue(b is B);
-  Expect.isTrue(b is Y);
-}
diff --git a/tests/language_2/mixin/substitution_test.dart b/tests/language_2/mixin/substitution_test.dart
deleted file mode 100644
index 1c26b889db6..00000000000
--- a/tests/language_2/mixin/substitution_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that mixins don't interfere with type variable substitution.
-
-import '../dynamic_type_helper.dart';
-
-class B<T> {
-  B(T x);
-}
-
-class M {}
-
-class A<T> extends B<T> with M {
-  A(T x) : super(x); // This line must be warning free.
-}
-
-class C<T> = B<T> with M;
-
-main() {
-  new A(null);
-  new C<String>('');
-  dynamic value = 0;
-  checkDynamicTypeError(() => new C<String>(value));
-}
diff --git a/tests/language_2/mixin/super_2_test.dart b/tests/language_2/mixin/super_2_test.dart
deleted file mode 100644
index bcb922d37b3..00000000000
--- a/tests/language_2/mixin/super_2_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class B {
-  // 'super' resolves to Object, and in some tests, multiple points in the
-  // inheritance chain.
-  toString() => 'B(' + super.toString() + ')';
-}
-
-class R {
-  toString() => 'R[' + super.toString() + ']';
-}
-
-class D extends R with B {
-  toString() => 'D<' + super.toString() + '>';
-}
-
-class E extends D with B {
-  toString() => 'E{' + super.toString() + '}';
-}
-
-class F = R with B, B;
-
-class G extends F with B {
-  toString() => 'G{' + super.toString() + '}';
-}
-
-main() {
-  check(object, String expected) {
-    Expect.equals(expected, object.toString());
-  }
-
-  check(B(), "B(Instance of '$B')");
-  check(R(), "R[Instance of '$R']");
-  check(D(), "D<B(R[Instance of '$D'])>");
-  check(E(), "E{B(D<B(R[Instance of '$E'])>)}");
-  check(G(), "G{B(B(B(R[Instance of '$G'])))}");
-}
diff --git a/tests/language_2/mixin/super_bound_runtime_test.dart b/tests/language_2/mixin/super_bound_runtime_test.dart
deleted file mode 100644
index 0823a5f2cd4..00000000000
--- a/tests/language_2/mixin/super_bound_runtime_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class M<U extends V, V> {}
-
-class N<U, V extends U> {}
-
-class S<T> {}
-
-class MNA<U, V extends U, W> extends S<List<U>>
-    with M<V, U>, N<List<W>, List<W>> {}
-
-class MNA2<U, V extends U, W> = S<List<U>> with M<V, U>, N<List<W>, List<W>>;
-
-main() {
-  new MNA<num, int, bool>();
-  new MNA2<num, int, bool>();
-
-  // Type parameter U of M must extend type parameter V, but
-  // type argument num is not a subtype of int.
-
-  // Type parameter U of M must extend type parameter V, but
-  // type argument num is not a subtype of int.
-
-}
diff --git a/tests/language_2/mixin/super_bound_test.dart b/tests/language_2/mixin/super_bound_test.dart
deleted file mode 100644
index 3b3eaf16e6b..00000000000
--- a/tests/language_2/mixin/super_bound_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class M<U extends V, V> {}
-
-class N<U, V extends U> {}
-
-class S<T> {}
-
-class MNA<U, V extends U, W> extends S<List<U>>
-    with M<V, U>, N<List<W>, List<W>> {}
-
-class MNA2<U, V extends U, W> = S<List<U>> with M<V, U>, N<List<W>, List<W>>;
-
-main() {
-  new MNA<num, int, bool>();
-  new MNA2<num, int, bool>();
-
-  // Type parameter U of M must extend type parameter V, but
-  // type argument num is not a subtype of int.
-  new MNA<int, num, bool>();
-  //  ^
-  // [cfe] Type argument 'num' doesn't conform to the bound 'U' of the type variable 'V' on 'MNA'.
-  //           ^^^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-
-  // Type parameter U of M must extend type parameter V, but
-  // type argument num is not a subtype of int.
-  new MNA2<int, num, bool>();
-  //  ^
-  // [cfe] Type argument 'num' doesn't conform to the bound 'U' of the type variable 'V' on 'MNA2'.
-  //            ^^^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-}
diff --git a/tests/language_2/mixin/super_constructor2_test.dart b/tests/language_2/mixin/super_constructor2_test.dart
deleted file mode 100644
index ecf8f0f6a74..00000000000
--- a/tests/language_2/mixin/super_constructor2_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Base {
-  var i, j;
-  Base.ctor1(int i, this.j) : this.i = i + 7;
-  Base.ctor2(int i, this.j) : this.i = i + 8;
-}
-
-abstract class M {
-  get i;
-  get j;
-  int k = 42;
-  foo() => i + j;
-}
-
-class C extends Base with M {
-  int l = 131;
-  C.ctor1() : super.ctor1(1, 13);
-  C.ctor2() : super.ctor2(1, 13);
-}
-
-main() {
-  C c1 = new C.ctor1();
-  Expect.equals(8, c1.i);
-  Expect.equals(13, c1.j);
-  Expect.equals(42, c1.k);
-  Expect.equals(131, c1.l);
-  Expect.equals(21, c1.foo());
-  C c2 = new C.ctor2();
-  Expect.equals(9, c2.i);
-  Expect.equals(13, c2.j);
-  Expect.equals(42, c2.k);
-  Expect.equals(131, c2.l);
-  Expect.equals(22, c2.foo());
-}
diff --git a/tests/language_2/mixin/super_constructor_default_test.dart b/tests/language_2/mixin/super_constructor_default_test.dart
deleted file mode 100644
index 4c65c8141e1..00000000000
--- a/tests/language_2/mixin/super_constructor_default_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Base {
-  int i, j;
-  Base(int i, this.j) : this.i = i + 7;
-}
-
-abstract class M {
-  int get i;
-  int get j;
-  int k = 42;
-  foo() => i + j;
-}
-
-class C extends Base with M {
-  int l = 131;
-  C() : super(1, 13);
-}
-
-main() {
-  C c = new C();
-  Expect.equals(8, c.i);
-  Expect.equals(13, c.j);
-  Expect.equals(21, c.foo());
-  Expect.equals(42, c.k);
-  Expect.equals(131, c.l);
-}
diff --git a/tests/language_2/mixin/super_constructor_multiple_test.dart b/tests/language_2/mixin/super_constructor_multiple_test.dart
deleted file mode 100644
index 0fb5208b3b9..00000000000
--- a/tests/language_2/mixin/super_constructor_multiple_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class S {
-  int i;
-  S.foo() : i = 1742;
-}
-
-class M1 {}
-
-class M2 {}
-
-class C extends S with M1, M2 {
-  C.foo() : super.foo();
-}
-
-main() {
-  Expect.equals(1742, new C.foo().i);
-}
diff --git a/tests/language_2/mixin/super_constructor_named_test.dart b/tests/language_2/mixin/super_constructor_named_test.dart
deleted file mode 100644
index 057b3ae154f..00000000000
--- a/tests/language_2/mixin/super_constructor_named_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Base {
-  int i, j;
-  Base.ctor(int this.i
-            , {int this.j: 10} //   //# 01: ok
-      ) {
-    if (j == null) {
-      j = 10;
-    }
-  }
-}
-
-abstract class M {
-  int get i;
-  int get j;
-  int k = 42;
-  foo() => i + j;
-}
-
-class C extends Base with M {
-  int l = 131;
-  C.foo() : super.ctor(1, j: 13); //# 01: continued
-  C.bar() : super.ctor(1);
-}
-
-main() {
-  C c1 = new C.foo(); //            //# 01: continued
-  C c2 = new C.bar();
-  Expect.equals(1, c2.i);
-  Expect.equals(10, c2.j);
-  Expect.equals(11, c2.foo());
-  Expect.equals(42, c2.k);
-  Expect.equals(131, c2.l);
-}
diff --git a/tests/language_2/mixin/super_constructor_positionals_test.dart b/tests/language_2/mixin/super_constructor_positionals_test.dart
deleted file mode 100644
index a2ba5510ba8..00000000000
--- a/tests/language_2/mixin/super_constructor_positionals_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Base {
-  int i, j;
-  Base.ctor(
-      int this.i,
-            [ //                 //# 01: ok
-      int this.j
-            ] //                 //# 01: continued
-      );
-}
-
-abstract class M {
-  int get i;
-  int get j;
-  int k = 42;
-  foo() => i + j;
-}
-
-class C extends Base with M {
-  int l = 131;
-  C.foo() : super.ctor(1, 13);
-  C.bar() : super.ctor(1); //    //# 01: continued
-}
-
-main() {
-  C c1 = new C.foo();
-  Expect.equals(1, c1.i);
-  Expect.equals(13, c1.j);
-  Expect.equals(14, c1.foo());
-  Expect.equals(42, c1.k);
-  Expect.equals(131, c1.l);
-  C c2 = new C.bar(); //         //# 01: continued
-}
diff --git a/tests/language_2/mixin/super_constructor_test.dart b/tests/language_2/mixin/super_constructor_test.dart
deleted file mode 100644
index 9246e1dbd15..00000000000
--- a/tests/language_2/mixin/super_constructor_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Base {
-  int i, j;
-  Base.ctor(int i, this.j) : this.i = i + 7;
-}
-
-abstract class M {
-  int get i;
-  int get j;
-  int k = 42;
-  foo() => i + j;
-}
-
-class C extends Base with M {
-  int l = 131;
-  C() : super.ctor(1, 13);
-}
-
-main() {
-  C c = new C();
-  Expect.equals(8, c.i);
-  Expect.equals(13, c.j);
-  Expect.equals(42, c.k);
-  Expect.equals(131, c.l);
-  Expect.equals(21, c.foo());
-}
diff --git a/tests/language_2/mixin/super_test.dart b/tests/language_2/mixin/super_test.dart
deleted file mode 100644
index e55fd8a7a78..00000000000
--- a/tests/language_2/mixin/super_test.dart
+++ /dev/null
@@ -1,106 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class MS<T> {
-  foo() {
-    return "MS<$T>.foo\n";
-  }
-}
-
-mixin M<T> on MS<List<T>> {
-  foo() {
-    return super.foo() + "M<$T>.foo\n";
-  }
-}
-
-class NS<T> {
-  foo() {
-    return "NS<$T>.foo\n";
-  }
-}
-
-mixin N<T> on NS<List<T>> {
-  foo() {
-    return super.foo() + "N<$T>.foo\n";
-  }
-}
-
-class S<T, V, W> implements MS<List<V>>, NS<List<W>> {
-  foo() {
-    return "S<$T,$V,$W>.foo\n";
-  }
-}
-
-class SM<U, V, W> = S<U, V, W> with M<V>;
-
-class MNA1<U, V, W> extends S<U, V, W> with M<V>, N<W> {
-  foo() {
-    return super.foo() + "MNA1<$U, $V, $W>.foo\n";
-  }
-}
-
-class MNA2<U, V, W> extends SM<U, V, W> with N<W> {
-  foo() {
-    return super.foo() + "MNA2<$U, $V, $W>.foo\n";
-  }
-}
-
-class MNA3<U, V, W> extends S<U, V, W> with M<V>, N<W> {
-  foo() {
-    return super.foo() + "MNA3<$U, $V, $W>.foo\n";
-  }
-}
-
-abstract class Base {
-  static String log = '';
-  Base() {
-    log += 'Base()\n';
-  }
-}
-
-mixin Foo on Base {
-  var x = Base.log += 'Foo.x\n';
-}
-
-mixin Bar on Base {
-  var y = Base.log += 'Bar.y\n';
-}
-
-class Derived extends Base with Foo, Bar {
-  String get log => Base.log;
-}
-
-main() {
-  Expect.equals(
-      "S<int,String,bool>.foo\n"
-      "M<String>.foo\n",
-      SM<int, String, bool>().foo());
-  Expect.equals(
-      "S<int,String,bool>.foo\n"
-      "M<String>.foo\n"
-      "N<bool>.foo\n"
-      "MNA1<int, String, bool>.foo\n",
-      MNA1<int, String, bool>().foo());
-  Expect.equals(
-      "S<int,String,bool>.foo\n"
-      "M<String>.foo\n"
-      "N<bool>.foo\n"
-      "MNA2<int, String, bool>.foo\n",
-      MNA2<int, String, bool>().foo());
-  Expect.equals(
-      "S<int,String,bool>.foo\n"
-      "M<String>.foo\n"
-      "N<bool>.foo\n"
-      "MNA3<int, String, bool>.foo\n",
-      MNA3<int, String, bool>().foo());
-  Expect.equals(
-      "Bar.y\n"
-      "Foo.x\n"
-      "Base()\n",
-      Derived().log);
-}
diff --git a/tests/language_2/mixin/super_use_test.dart b/tests/language_2/mixin/super_use_test.dart
deleted file mode 100644
index 6dff263a69d..00000000000
--- a/tests/language_2/mixin/super_use_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class M {}
-
-class P0 {
-  foo() {
-    super.toString();
-
-    void inner() {
-      super.toString();
-    }
-
-    inner();
-
-    (() {
-      super.toString();
-    })();
-
-    return 42;
-  }
-}
-
-class P1 {
-  bar() {
-    super.toString();
-    return 87;
-  }
-
-  // The test method is strategically placed here to try to force the
-  // P1 class and its bar method to be resolved before resolving the
-  // mixin applications.
-  test() {
-    new C();
-    var d = new D();
-    var e = new E();
-    var f = new F();
-    Expect.equals(42, d.foo());
-    Expect.equals(87, e.bar());
-    Expect.equals(99, f.baz());
-  }
-}
-
-class P2 {
-  baz() {
-    super.toString();
-    return 99;
-  }
-}
-
-class C = Object with M;
-class D = Object with P0;
-class E = Object with M, P1;
-class F = Object with P2, M;
-
-main() {
-  var p1 = new P1();
-  var p2 = new P2();
-  Expect.equals(87, p1.bar());
-  p1.test();
-  Expect.equals(99, p2.baz());
-}
diff --git a/tests/language_2/mixin/super_with_initializer_test.dart b/tests/language_2/mixin/super_with_initializer_test.dart
deleted file mode 100644
index 3a374d295b8..00000000000
--- a/tests/language_2/mixin/super_with_initializer_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Regression test for mixin overrides (dartbug.com/44636).
-///
-/// Prior to the fix, B's initializer was accidentally being applied on the
-/// overridden definition in C, and as a result, the program would stack
-/// overflow.
-import 'package:expect/expect.dart';
-
-class A = B with C;
-
-mixin M {}
-
-abstract class B with M {
-  Object _test = "a";
-}
-
-mixin C on B, M {
-  @override
-  Object get _test => super._test;
-
-  @override
-  set _test(Object value) {
-    super._test = value;
-  }
-}
-
-main() => Expect.equals("a", A()._test);
diff --git a/tests/language_2/mixin/superclass_runtime_test.dart b/tests/language_2/mixin/superclass_runtime_test.dart
deleted file mode 100644
index 7db5d288832..00000000000
--- a/tests/language_2/mixin/superclass_runtime_test.dart
+++ /dev/null
@@ -1,127 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class S0 {}
-
-class S1 extends Object {}
-
-class S2 extends S0 {}
-
-class M0 {}
-
-class M1 extends Object {}
-
-mixin M2 on M0 {}
-
-class C00 = S0 with M0;
-class C01 = S0 with M1;
-
-class C03 = S0 with M0, M1;
-class C04 = S0 with M0, M2;
-
-
-
-
-class C10 = S1 with M0;
-class C11 = S1 with M1;
-
-class C13 = S1 with M0, M1;
-class C14 = S1 with M0, M2;
-
-
-
-
-class C20 = S2 with M0;
-class C21 = S2 with M1;
-
-class C23 = S2 with M0, M1;
-class C24 = S2 with M0, M2;
-
-
-
-
-class D00 extends S0 with M0 {}
-
-class D01 extends S0 with M1 {}
-
-
-
-class D03 extends S0 with M0, M1 {}
-
-class D04 extends S0 with M0, M2 {}
-
-
-
-
-
-
-
-class D10 extends S1 with M0 {}
-
-class D11 extends S1 with M1 {}
-
-
-
-class D13 extends S1 with M0, M1 {}
-
-class D14 extends S1 with M0, M2 {}
-
-
-
-
-
-
-
-class D20 extends S2 with M0 {}
-
-class D21 extends S2 with M1 {}
-
-
-
-class D23 extends S2 with M0, M1 {}
-
-class D24 extends S2 with M0, M2 {}
-
-
-
-
-
-
-
-main() {
-  new C00();
-  new C01();
-  new C03();
-  new C04();
-
-  new C10();
-  new C11();
-  new C13();
-  new C14();
-
-  new C20();
-  new C21();
-  new C23();
-  new C24();
-
-  new D00();
-  new D01();
-  new D03();
-  new D04();
-
-  new D10();
-  new D11();
-  new D13();
-  new D14();
-
-  new D20();
-  new D21();
-  new D23();
-  new D24();
-}
diff --git a/tests/language_2/mixin/superclass_test.dart b/tests/language_2/mixin/superclass_test.dart
deleted file mode 100644
index 1c81a63d896..00000000000
--- a/tests/language_2/mixin/superclass_test.dart
+++ /dev/null
@@ -1,220 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class S0 {}
-
-class S1 extends Object {}
-
-class S2 extends S0 {}
-
-class M0 {}
-
-class M1 extends Object {}
-
-mixin M2 on M0 {}
-
-class C00 = S0 with M0;
-class C01 = S0 with M1;
-class C02 = S0 with M2;
-//    ^
-// [cfe] 'S0' doesn't implement 'M0' so it can't be used with 'M2'.
-//                  ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-class C03 = S0 with M0, M1;
-class C04 = S0 with M0, M2;
-class C05 = S0 with M2, M0;
-//    ^
-// [cfe] 'S0' doesn't implement 'M0' so it can't be used with 'M2'.
-//                  ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-class C06 = S0 with M1, M2;
-//    ^
-// [cfe] '_C06&S0&M1' doesn't implement 'M0' so it can't be used with 'M2'.
-//                      ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-class C07 = S0 with M2, M1;
-//    ^
-// [cfe] 'S0' doesn't implement 'M0' so it can't be used with 'M2'.
-//                  ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-
-class C10 = S1 with M0;
-class C11 = S1 with M1;
-class C12 = S1 with M2;
-//    ^
-// [cfe] 'S1' doesn't implement 'M0' so it can't be used with 'M2'.
-//                  ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-class C13 = S1 with M0, M1;
-class C14 = S1 with M0, M2;
-class C15 = S1 with M2, M0;
-//    ^
-// [cfe] 'S1' doesn't implement 'M0' so it can't be used with 'M2'.
-//                  ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-class C16 = S1 with M1, M2;
-//    ^
-// [cfe] '_C16&S1&M1' doesn't implement 'M0' so it can't be used with 'M2'.
-//                      ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-class C17 = S1 with M2, M1;
-//    ^
-// [cfe] 'S1' doesn't implement 'M0' so it can't be used with 'M2'.
-//                  ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-
-class C20 = S2 with M0;
-class C21 = S2 with M1;
-class C22 = S2 with M2;
-//    ^
-// [cfe] 'S2' doesn't implement 'M0' so it can't be used with 'M2'.
-//                  ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-class C23 = S2 with M0, M1;
-class C24 = S2 with M0, M2;
-class C25 = S2 with M2, M0;
-//    ^
-// [cfe] 'S2' doesn't implement 'M0' so it can't be used with 'M2'.
-//                  ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-class C26 = S2 with M1, M2;
-//    ^
-// [cfe] '_C26&S2&M1' doesn't implement 'M0' so it can't be used with 'M2'.
-//                      ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-class C27 = S2 with M2, M1;
-//    ^
-// [cfe] 'S2' doesn't implement 'M0' so it can't be used with 'M2'.
-//                  ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-
-class D00 extends S0 with M0 {}
-
-class D01 extends S0 with M1 {}
-
-class D02 extends S0 with M2 {}
-//    ^
-// [cfe] 'S0' doesn't implement 'M0' so it can't be used with 'M2'.
-//                        ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-
-class D03 extends S0 with M0, M1 {}
-
-class D04 extends S0 with M0, M2 {}
-
-class D05 extends S0 with M2, M0 {}
-//    ^
-// [cfe] 'S0' doesn't implement 'M0' so it can't be used with 'M2'.
-//                        ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-
-class D06 extends S0 with M1, M2 {}
-//    ^
-// [cfe] '_D06&S0&M1' doesn't implement 'M0' so it can't be used with 'M2'.
-//                            ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-
-class D07 extends S0 with M2, M1 {}
-//    ^
-// [cfe] 'S0' doesn't implement 'M0' so it can't be used with 'M2'.
-//                        ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-
-class D10 extends S1 with M0 {}
-
-class D11 extends S1 with M1 {}
-
-class D12 extends S1 with M2 {}
-//    ^
-// [cfe] 'S1' doesn't implement 'M0' so it can't be used with 'M2'.
-//                        ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-
-class D13 extends S1 with M0, M1 {}
-
-class D14 extends S1 with M0, M2 {}
-
-class D15 extends S1 with M2, M0 {}
-//    ^
-// [cfe] 'S1' doesn't implement 'M0' so it can't be used with 'M2'.
-//                        ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-
-class D16 extends S1 with M1, M2 {}
-//    ^
-// [cfe] '_D16&S1&M1' doesn't implement 'M0' so it can't be used with 'M2'.
-//                            ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-
-class D17 extends S1 with M2, M1 {}
-//    ^
-// [cfe] 'S1' doesn't implement 'M0' so it can't be used with 'M2'.
-//                        ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-
-class D20 extends S2 with M0 {}
-
-class D21 extends S2 with M1 {}
-
-class D22 extends S2 with M2 {}
-//    ^
-// [cfe] 'S2' doesn't implement 'M0' so it can't be used with 'M2'.
-//                        ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-
-class D23 extends S2 with M0, M1 {}
-
-class D24 extends S2 with M0, M2 {}
-
-class D25 extends S2 with M2, M0 {}
-//    ^
-// [cfe] 'S2' doesn't implement 'M0' so it can't be used with 'M2'.
-//                        ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-
-class D26 extends S2 with M1, M2 {}
-//    ^
-// [cfe] '_D26&S2&M1' doesn't implement 'M0' so it can't be used with 'M2'.
-//                            ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-
-class D27 extends S2 with M2, M1 {}
-//    ^
-// [cfe] 'S2' doesn't implement 'M0' so it can't be used with 'M2'.
-//                        ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-
-main() {
-  new C00();
-  new C01();
-  new C03();
-  new C04();
-
-  new C10();
-  new C11();
-  new C13();
-  new C14();
-
-  new C20();
-  new C21();
-  new C23();
-  new C24();
-
-  new D00();
-  new D01();
-  new D03();
-  new D04();
-
-  new D10();
-  new D11();
-  new D13();
-  new D14();
-
-  new D20();
-  new D21();
-  new D23();
-  new D24();
-}
diff --git a/tests/language_2/mixin/supertype_subclass2_test.dart b/tests/language_2/mixin/supertype_subclass2_test.dart
deleted file mode 100644
index 8114eb699d5..00000000000
--- a/tests/language_2/mixin/supertype_subclass2_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class B {}
-
-class C {}
-
-class D {}
-
-class E extends B with C implements D {}
-
-class F extends E {}
-
-// M is mixed onto E which implements B, C and D.
-mixin M //
-  on B //# 01: ok
-  on C //# 02: ok
-  on D //# 03: ok
-  on E //# 04: ok
-  on F //# 05: compile-time error
-{}
-
-class A extends E with M {}
-
-main() {
-  new A();
-}
diff --git a/tests/language_2/mixin/supertype_subclass_test.dart b/tests/language_2/mixin/supertype_subclass_test.dart
deleted file mode 100644
index e7c4cad1f84..00000000000
--- a/tests/language_2/mixin/supertype_subclass_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class B {}
-
-class C {}
-
-class D {}
-
-class E extends B with C implements D {}
-
-class F extends E {}
-
-// M is mixed onto E which implements B, C and D.
-mixin M //
-  on B //# 01: ok
-  on C //# 02: ok
-  on D //# 03: ok
-  on E //# 04: ok
-  on F //# 05: compile-time error
-{}
-
-class A = E with M;
-
-main() {
-  new A();
-}
diff --git a/tests/language_2/mixin/this_use_test.dart b/tests/language_2/mixin/this_use_test.dart
deleted file mode 100644
index 7d2f99ddd19..00000000000
--- a/tests/language_2/mixin/this_use_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that [:this:] in a class A used as a mixin in class D knows it can be an
-// instance of D.
-
-import "package:expect/expect.dart";
-
-class A {
-  foo() => bar(); // Implicit use of [:this:]
-  bar() => 42;
-}
-
-class B {}
-
-class C = B with A;
-
-class D extends C {
-  bar() => 54;
-}
-
-class E extends A {
-  bar() => 68;
-}
-
-main() {
-  Expect.equals(54, new D().foo());
-  Expect.equals(68, new E().foo());
-}
diff --git a/tests/language_2/mixin/type_parameter1_test.dart b/tests/language_2/mixin/type_parameter1_test.dart
deleted file mode 100644
index d7cf77371f0..00000000000
--- a/tests/language_2/mixin/type_parameter1_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class Mixin1<T> {}
-
-abstract class Mixin2<T> {}
-
-class A {}
-
-class MyTypedef<K, V> = A with Mixin1<K>, Mixin2<V>;
-
-class B<K, V> extends MyTypedef<K, V> {}
-
-main() {
-  var b = new B<num, String>();
-  Expect.isTrue(b is Mixin1<num>);
-  Expect.isTrue(b is! Mixin1<String>);
-  Expect.isTrue(b is Mixin2<String>);
-  Expect.isTrue(b is! Mixin2<num>);
-}
diff --git a/tests/language_2/mixin/type_parameter2_test.dart b/tests/language_2/mixin/type_parameter2_test.dart
deleted file mode 100644
index 27ab6391cdd..00000000000
--- a/tests/language_2/mixin/type_parameter2_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class Mixin1<T> {}
-
-abstract class Mixin2<T> {}
-
-class A {
-  A(foo);
-}
-
-class MyTypedef<K, V> = A with Mixin1<K>, Mixin2<V>;
-
-class B<K, V> extends MyTypedef<K, V> {
-  B(foo) : super(foo);
-}
-
-main() {
-  var b = new B<num, String>(null);
-  Expect.isTrue(b is Mixin1<num>);
-  Expect.isTrue(b is! Mixin1<String>);
-  Expect.isTrue(b is Mixin2<String>);
-  Expect.isTrue(b is! Mixin2<num>);
-}
diff --git a/tests/language_2/mixin/type_parameter3_test.dart b/tests/language_2/mixin/type_parameter3_test.dart
deleted file mode 100644
index 36591665d15..00000000000
--- a/tests/language_2/mixin/type_parameter3_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class Mixin1<T> {}
-
-abstract class Mixin2<T> {}
-
-class A {
-  A(foo);
-}
-
-class B<K, V> extends A with Mixin1<K>, Mixin2<V> {
-  B(foo) : super(foo);
-}
-
-main() {
-  var b = new B<num, String>(null);
-  Expect.isTrue(b is Mixin1<num>);
-  Expect.isTrue(b is! Mixin1<String>);
-  Expect.isTrue(b is Mixin2<String>);
-  Expect.isTrue(b is! Mixin2<num>);
-}
diff --git a/tests/language_2/mixin/type_parameter4_test.dart b/tests/language_2/mixin/type_parameter4_test.dart
deleted file mode 100644
index 87cb7605e63..00000000000
--- a/tests/language_2/mixin/type_parameter4_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class R<E, F> {}
-
-class M<J> implements R<bool, J> {}
-
-class B1 {}
-
-class B2 {}
-
-class A1<T> extends B1 with M<T> {}
-
-class A2<T> = B2 with M<T>;
-
-main() {
-  var a1 = new A1<int>();
-  Expect.isTrue(a1 is R<bool, int>);
-  var a2 = new A2<int>();
-  Expect.isTrue(a2 is R<bool, int>);
-}
diff --git a/tests/language_2/mixin/type_parameter5_test.dart b/tests/language_2/mixin/type_parameter5_test.dart
deleted file mode 100644
index f93a9ba4d9c..00000000000
--- a/tests/language_2/mixin/type_parameter5_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class MixinA<T> {
-  T intField;
-}
-
-class MixinB<S> {
-  S stringField;
-}
-
-class MixinC<U, V> {
-  U listField;
-  V mapField;
-}
-
-class C extends Object with MixinA<int>, MixinB<String>, MixinC<List, Map> {}
-
-void main() {
-  var c = new C();
-  c.intField = 0;
-  c.stringField = '';
-  c.listField = [];
-  c.mapField = {};
-}
diff --git a/tests/language_2/mixin/type_parameter6_test.dart b/tests/language_2/mixin/type_parameter6_test.dart
deleted file mode 100644
index 6aec9de42a3..00000000000
--- a/tests/language_2/mixin/type_parameter6_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A<T> {}
-
-class B<S> {
-  int foo(S s) => null;
-}
-
-class C extends A<int> with B<String> {}
-
-main() {
-  var list = <String>['foo'];
-  var c = new C();
-  list.map(c.foo);
-}
diff --git a/tests/language_2/mixin/type_parameter_inference_error_test.dart b/tests/language_2/mixin/type_parameter_inference_error_test.dart
deleted file mode 100644
index 7d09d22e265..00000000000
--- a/tests/language_2/mixin/type_parameter_inference_error_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-abstract class A<T> {}
-
-class B {}
-
-mixin M<T> on A<T> {}
-
-// No matching class from which to infer the type parameter of M
-class C extends Object with M {} //# 01: compile-time error
-
-class C = Object with M; //# 02: compile-time error
-
-// Satisfying the constraint with an "implements" clause is not sufficient
-class C extends Object with M implements A<B> {} //# 03: compile-time error
-
-class C = Object with M implements A<B>; //# 04: compile-time error
-
-// Mixin works when used correctly.
-class D = A<B> with M<B>;
-
-main() {}
diff --git a/tests/language_2/mixin/type_parameter_inference_previous_mixin_test.dart b/tests/language_2/mixin/type_parameter_inference_previous_mixin_test.dart
deleted file mode 100644
index 191e77b1b7a..00000000000
--- a/tests/language_2/mixin/type_parameter_inference_previous_mixin_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class A<T> {
-  // This is ok because type inference will ensure that in C, A and M are
-  // instantiated with the same T.
-  T f(T x) => x; //# 01: ok
-}
-
-class B {}
-
-abstract class M1 implements A<B> {}
-
-mixin M2<T> on A<T> {
-  T f(T x) => x;
-  T g(T x) => x;
-  Type h() => T;
-}
-
-// Inferred as `class C extends Object with M1, M2<B>`
-class C extends Object with M1, M2 {}
-
-main() {
-  C c = new C();
-
-  // M is instantiated with B, so C.g has type (B) -> B.
-  B Function(B) x = c.g; //# 02: ok
-  Null Function(Null) x = c.g; //# 03: compile-time error
-  Object Function(Object) x = c.g; //# 04: compile-time error
-
-  // And verify that the runtime system has the right type for the type
-  // parameter
-  Expect.equals(c.h(), B); //# 05: ok
-}
diff --git a/tests/language_2/mixin/type_parameter_inference_test.dart b/tests/language_2/mixin/type_parameter_inference_test.dart
deleted file mode 100644
index b3cf4bf3833..00000000000
--- a/tests/language_2/mixin/type_parameter_inference_test.dart
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class A<T> {
-  // This is ok because type inference will ensure that in C, A and M are
-  // instantiated with the same T.
-  T f(T x) => x; //# 01: ok
-}
-
-class B {}
-
-mixin M1<T> on A<T> {
-  T f(T x) => x;
-  T g(T x) => x;
-  Type h() => T;
-}
-
-class M2<T> {
-  T g(T x) => x;
-  Type h() => T;
-}
-
-// Inferred as `class C extends A<B> with M1<B>`
-class C extends A<B> with M1 {}
-
-// Inferred as `class D = A<B> with M1<B>`
-class D = A<B> with M1;
-
-// Inferred as `class E extends Object with M2<dynamic>`
-class E extends Object with M2 {}
-
-// Ok because a type parameter is supplied
-class F extends Object with M2<B> {}
-
-main() {
-  C c = new C();
-  D d = new D();
-  E e = new E();
-  F f = new F();
-
-  // M1 is instantiated with B, so C.g has type (B) -> B.
-  B Function(B) x = c.g; //# 02: ok
-  B Function(B) x = d.g; //# 03: ok
-  Null Function(Null) x = c.g; //# 04: compile-time error
-  Null Function(Null) x = d.g; //# 05: compile-time error
-  Object Function(Object) x = c.g; //# 06: compile-time error
-  Object Function(Object) x = d.g; //# 07: compile-time error
-
-  // And verify that the runtime system has the right type for the type
-  // parameter
-  Expect.equals(c.h(), B); //# 08: ok
-  Expect.equals(c.h(), B); //# 09: ok
-
-  // M2 is instantiated with dynamic, so E.g has type (dynamic) -> dynamic.
-  dynamic Function(dynamic) x = e.g; //# 10: ok
-  B Function(B) x = e.g; //# 11: compile-time error
-
-  // And verify that the runtime system has the right type for the type
-  // parameter
-  Expect.equals(e.h(), dynamic); //# 12: ok
-
-  // M2 is instantiated with B, so F.g has type (B) -> B.
-  B Function(B) x = f.g; //# 13: ok
-  Null Function(Null) x = f.g; //# 14: compile-time error
-  Object Function(Object) x = f.g; //# 15: compile-time error
-
-  // And verify that the runtime system has the right type for the type
-  // parameter
-  Expect.equals(f.h(), B); //# 16: ok
-}
diff --git a/tests/language_2/mixin/type_parameters_errors_runtime_test.dart b/tests/language_2/mixin/type_parameters_errors_runtime_test.dart
deleted file mode 100644
index e7829d1922d..00000000000
--- a/tests/language_2/mixin/type_parameters_errors_runtime_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class S<T> {}
-
-class M<U> {}
-
-class A<X> extends S<int> with M<double> {}
-
-
-
-class F<X> = S<X> with M<X>;
-
-
-main() {
-  var a;
-  a = new A();
-  a = new A<int>();
-
-  a = new F<int>();
-
-}
diff --git a/tests/language_2/mixin/type_parameters_errors_test.dart b/tests/language_2/mixin/type_parameters_errors_test.dart
deleted file mode 100644
index a995ab4ba21..00000000000
--- a/tests/language_2/mixin/type_parameters_errors_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class S<T> {}
-
-class M<U> {}
-
-class A<X> extends S<int> with M<double> {}
-class B<U, V> extends S with M<U, V> { }
-//    ^
-// [cfe] The type 'M<U, V>' can't be mixed in.
-//                           ^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-// [cfe] Expected 1 type arguments.
-class C<A, B> extends S<A, int> with M { }
-//                    ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-// [cfe] Expected 1 type arguments.
-
-class F<X> = S<X> with M<X>;
-class G = S<int> with M<double, double>;
-//    ^
-// [cfe] The type 'M<double, double>' can't be mixed in.
-//                    ^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-// [cfe] Expected 1 type arguments.
-
-main() {
-  var a;
-  a = new A();
-  a = new A<int>();
-  a = new A<String, String>();
-  //      ^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-  // [cfe] Expected 1 type arguments.
-  a = new F<int>();
-  a = new F<int, String>();
-  //      ^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-  // [cfe] Expected 1 type arguments.
-}
diff --git a/tests/language_2/mixin/type_parameters_mixin_extends_test.dart b/tests/language_2/mixin/type_parameters_mixin_extends_test.dart
deleted file mode 100644
index 2f86d0add5e..00000000000
--- a/tests/language_2/mixin/type_parameters_mixin_extends_test.dart
+++ /dev/null
@@ -1,132 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class M<T> {
-  bool matches(o) {
-    bool isChecked = checkUsingIs(o);
-    if (checkedMode) {
-      Expect.equals(isChecked, checkUsingCheckedMode(o));
-    }
-    return isChecked;
-  }
-
-  bool checkUsingIs(o) {
-    return o is T;
-  }
-
-  bool checkUsingCheckedMode(o) {
-    try {
-      T x = o;
-    } on Error {
-      return false;
-    }
-    return true;
-  }
-
-  static final bool checkedMode = computeCheckedMode();
-  static bool computeCheckedMode() {
-    try {
-      int x = "foo" as dynamic;
-    } on Error {
-      return true;
-    }
-    return false;
-  }
-}
-
-class S {}
-
-class C0<T> extends S with M {}
-
-class C1<T> extends S with M<T> {}
-
-class C2<T> extends S with M<int> {}
-
-class C3 extends S with M<String> {}
-
-main() {
-  var c0 = new C0();
-  Expect.isTrue(c0 is M);
-  Expect.isFalse(c0 is M<int>);
-  Expect.isFalse(c0 is M<String>);
-  Expect.isTrue(c0.matches(c0));
-  Expect.isTrue(c0.matches(42));
-  Expect.isTrue(c0.matches("hello"));
-
-  var c0_int = new C0<int>();
-  Expect.isTrue(c0_int is M);
-  Expect.isFalse(c0_int is M<int>);
-  Expect.isFalse(c0_int is M<String>);
-  Expect.isTrue(c0_int.matches(c0));
-  Expect.isTrue(c0_int.matches(42));
-  Expect.isTrue(c0_int.matches("hello"));
-
-  var c0_String = new C0<String>();
-  Expect.isTrue(c0_String is M);
-  Expect.isFalse(c0_String is M<int>);
-  Expect.isFalse(c0_String is M<String>);
-  Expect.isTrue(c0_String.matches(c0));
-  Expect.isTrue(c0_String.matches(42));
-  Expect.isTrue(c0_String.matches("hello"));
-
-  var c1 = new C1();
-  Expect.isTrue(c1 is M);
-  Expect.isFalse(c1 is M<int>);
-  Expect.isFalse(c1 is M<String>);
-  Expect.isTrue(c1.matches(c1));
-  Expect.isTrue(c1.matches(42));
-  Expect.isTrue(c1.matches("hello"));
-
-  var c1_int = new C1<int>();
-  Expect.isTrue(c1_int is M);
-  Expect.isTrue(c1_int is M<int>);
-  Expect.isFalse(c1_int is M<String>);
-  Expect.isFalse(c1_int.matches(c1));
-  Expect.isTrue(c1_int.matches(42));
-  Expect.isFalse(c1_int.matches("hello"));
-
-  var c1_String = new C1<String>();
-  Expect.isTrue(c1_String is M);
-  Expect.isFalse(c1_String is M<int>);
-  Expect.isTrue(c1_String is M<String>);
-  Expect.isFalse(c1_String.matches(c1));
-  Expect.isFalse(c1_String.matches(42));
-  Expect.isTrue(c1_String.matches("hello"));
-
-  var c2 = new C2();
-  Expect.isTrue(c2 is M);
-  Expect.isTrue(c2 is M<int>);
-  Expect.isFalse(c2 is M<String>);
-  Expect.isFalse(c2.matches(c2));
-  Expect.isTrue(c2.matches(42));
-  Expect.isFalse(c2.matches("hello"));
-
-  var c2_int = new C2<int>();
-  Expect.isTrue(c2_int is M);
-  Expect.isTrue(c2_int is M<int>);
-  Expect.isFalse(c2_int is M<String>);
-  Expect.isFalse(c2_int.matches(c2));
-  Expect.isTrue(c2_int.matches(42));
-  Expect.isFalse(c2_int.matches("hello"));
-
-  var c2_String = new C2<String>();
-  Expect.isTrue(c2_String is M);
-  Expect.isTrue(c2_String is M<int>);
-  Expect.isFalse(c2_String is M<String>);
-  Expect.isFalse(c2_String.matches(c2));
-  Expect.isTrue(c2_String.matches(42));
-  Expect.isFalse(c2_String.matches("hello"));
-
-  var c3 = new C3();
-  Expect.isTrue(c3 is M);
-  Expect.isFalse(c3 is M<int>);
-  Expect.isTrue(c3 is M<String>);
-  Expect.isFalse(c3.matches(c2));
-  Expect.isFalse(c3.matches(42));
-  Expect.isTrue(c3.matches("hello"));
-}
diff --git a/tests/language_2/mixin/type_parameters_mixin_test.dart b/tests/language_2/mixin/type_parameters_mixin_test.dart
deleted file mode 100644
index 58fdfc25973..00000000000
--- a/tests/language_2/mixin/type_parameters_mixin_test.dart
+++ /dev/null
@@ -1,129 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class M<T> {
-  bool matches(o) {
-    bool isChecked = checkUsingIs(o);
-    if (checkedMode) {
-      Expect.equals(isChecked, checkUsingCheckedMode(o));
-    }
-    return isChecked;
-  }
-
-  bool checkUsingIs(o) {
-    return o is T;
-  }
-
-  bool checkUsingCheckedMode(o) {
-    try {
-      T x = o;
-    } on Error {
-      return false;
-    }
-    return true;
-  }
-
-  static final bool checkedMode = computeCheckedMode();
-  static bool computeCheckedMode() {
-    try {
-      int x = "foo" as dynamic;
-    } on Error {
-      return true;
-    }
-    return false;
-  }
-}
-
-class S {}
-
-class C0<T> = S with M;
-class C1<T> = S with M<T>;
-class C2<T> = S with M<int>;
-class C3 = S with M<String>;
-
-main() {
-  var c0 = new C0();
-  Expect.isTrue(c0 is M);
-  Expect.isFalse(c0 is M<int>);
-  Expect.isFalse(c0 is M<String>);
-  Expect.isTrue(c0.matches(c0));
-  Expect.isTrue(c0.matches(42));
-  Expect.isTrue(c0.matches("hello"));
-
-  var c0_int = new C0<int>();
-  Expect.isTrue(c0_int is M);
-  Expect.isFalse(c0_int is M<int>);
-  Expect.isFalse(c0_int is M<String>);
-  Expect.isTrue(c0_int.matches(c0));
-  Expect.isTrue(c0_int.matches(42));
-  Expect.isTrue(c0_int.matches("hello"));
-
-  var c0_String = new C0<String>();
-  Expect.isTrue(c0_String is M);
-  Expect.isFalse(c0_String is M<int>);
-  Expect.isFalse(c0_String is M<String>);
-  Expect.isTrue(c0_String.matches(c0));
-  Expect.isTrue(c0_String.matches(42));
-  Expect.isTrue(c0_String.matches("hello"));
-
-  var c1 = new C1();
-  Expect.isTrue(c1 is M);
-  Expect.isFalse(c1 is M<int>);
-  Expect.isFalse(c1 is M<String>);
-  Expect.isTrue(c1.matches(c1));
-  Expect.isTrue(c1.matches(42));
-  Expect.isTrue(c1.matches("hello"));
-
-  var c1_int = new C1<int>();
-  Expect.isTrue(c1_int is M);
-  Expect.isTrue(c1_int is M<int>);
-  Expect.isFalse(c1_int is M<String>);
-  Expect.isFalse(c1_int.matches(c1));
-  Expect.isTrue(c1_int.matches(42));
-  Expect.isFalse(c1_int.matches("hello"));
-
-  var c1_String = new C1<String>();
-  Expect.isTrue(c1_String is M);
-  Expect.isFalse(c1_String is M<int>);
-  Expect.isTrue(c1_String is M<String>);
-  Expect.isFalse(c1_String.matches(c1));
-  Expect.isFalse(c1_String.matches(42));
-  Expect.isTrue(c1_String.matches("hello"));
-
-  var c2 = new C2();
-  Expect.isTrue(c2 is M);
-  Expect.isTrue(c2 is M<int>);
-  Expect.isFalse(c2 is M<String>);
-  Expect.isFalse(c2.matches(c2));
-  Expect.isTrue(c2.matches(42));
-  Expect.isFalse(c2.matches("hello"));
-
-  var c2_int = new C2<int>();
-  Expect.isTrue(c2_int is M);
-  Expect.isTrue(c2_int is M<int>);
-  Expect.isFalse(c2_int is M<String>);
-  Expect.isFalse(c2_int.matches(c2));
-  Expect.isTrue(c2_int.matches(42));
-  Expect.isFalse(c2_int.matches("hello"));
-
-  var c2_String = new C2<String>();
-  Expect.isTrue(c2_String is M);
-  Expect.isTrue(c2_String is M<int>);
-  Expect.isFalse(c2_String is M<String>);
-  Expect.isFalse(c2_String.matches(c2));
-  Expect.isTrue(c2_String.matches(42));
-  Expect.isFalse(c2_String.matches("hello"));
-
-  var c3 = new C3();
-  Expect.isTrue(c3 is M);
-  Expect.isFalse(c3 is M<int>);
-  Expect.isTrue(c3 is M<String>);
-  Expect.isFalse(c3.matches(c2));
-  Expect.isFalse(c3.matches(42));
-  Expect.isTrue(c3.matches("hello"));
-}
diff --git a/tests/language_2/mixin/type_parameters_simple_test.dart b/tests/language_2/mixin/type_parameters_simple_test.dart
deleted file mode 100644
index 81964ca5ca5..00000000000
--- a/tests/language_2/mixin/type_parameters_simple_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class S {}
-
-class M1<X> {
-  m1() => X;
-}
-
-class M2<Y> {
-  m2() => Y;
-}
-
-class A<T> extends S with M1<T>, M2<T> {}
-
-main() {
-  var a = new A<int>();
-  // Getting "int" when calling toString() on the int type is not required.
-  // However, we want to keep the original names for the most common core types
-  // so we make sure to handle these specifically in the compiler.
-  Expect.equals("int", a.m1().toString());
-  Expect.equals("int", a.m2().toString());
-  var a2 = new A<String>();
-  Expect.equals("String", a2.m1().toString());
-  Expect.equals("String", a2.m2().toString());
-}
diff --git a/tests/language_2/mixin/type_parameters_super_extends_test.dart b/tests/language_2/mixin/type_parameters_super_extends_test.dart
deleted file mode 100644
index 267489930ba..00000000000
--- a/tests/language_2/mixin/type_parameters_super_extends_test.dart
+++ /dev/null
@@ -1,132 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class S<T> {
-  bool matches(o) {
-    bool isChecked = checkUsingIs(o);
-    if (checkedMode) {
-      Expect.equals(isChecked, checkUsingCheckedMode(o));
-    }
-    return isChecked;
-  }
-
-  bool checkUsingIs(o) {
-    return o is T;
-  }
-
-  bool checkUsingCheckedMode(o) {
-    try {
-      T x = o;
-    } on Error {
-      return false;
-    }
-    return true;
-  }
-
-  static final bool checkedMode = computeCheckedMode();
-  static bool computeCheckedMode() {
-    try {
-      int x = "foo" as dynamic;
-    } on Error {
-      return true;
-    }
-    return false;
-  }
-}
-
-class M {}
-
-class C0<T> extends S with M {}
-
-class C1<T> extends S<T> with M {}
-
-class C2<T> extends S<int> with M {}
-
-class C3 extends S<String> with M {}
-
-main() {
-  var c0 = new C0();
-  Expect.isTrue(c0 is S);
-  Expect.isFalse(c0 is S<int>);
-  Expect.isFalse(c0 is S<String>);
-  Expect.isTrue(c0.matches(c0));
-  Expect.isTrue(c0.matches(42));
-  Expect.isTrue(c0.matches("hello"));
-
-  var c0_int = new C0<int>();
-  Expect.isTrue(c0_int is S);
-  Expect.isFalse(c0_int is S<int>);
-  Expect.isFalse(c0_int is S<String>);
-  Expect.isTrue(c0_int.matches(c0));
-  Expect.isTrue(c0_int.matches(42));
-  Expect.isTrue(c0_int.matches("hello"));
-
-  var c0_String = new C0<String>();
-  Expect.isTrue(c0_String is S);
-  Expect.isFalse(c0_String is S<int>);
-  Expect.isFalse(c0_String is S<String>);
-  Expect.isTrue(c0_String.matches(c0));
-  Expect.isTrue(c0_String.matches(42));
-  Expect.isTrue(c0_String.matches("hello"));
-
-  var c1 = new C1();
-  Expect.isTrue(c1 is S);
-  Expect.isFalse(c1 is S<int>);
-  Expect.isFalse(c1 is S<String>);
-  Expect.isTrue(c1.matches(c1));
-  Expect.isTrue(c1.matches(42));
-  Expect.isTrue(c1.matches("hello"));
-
-  var c1_int = new C1<int>();
-  Expect.isTrue(c1_int is S);
-  Expect.isTrue(c1_int is S<int>);
-  Expect.isFalse(c1_int is S<String>);
-  Expect.isFalse(c1_int.matches(c1));
-  Expect.isTrue(c1_int.matches(42));
-  Expect.isFalse(c1_int.matches("hello"));
-
-  var c1_String = new C1<String>();
-  Expect.isTrue(c1_String is S);
-  Expect.isFalse(c1_String is S<int>);
-  Expect.isTrue(c1_String is S<String>);
-  Expect.isFalse(c1_String.matches(c1));
-  Expect.isFalse(c1_String.matches(42));
-  Expect.isTrue(c1_String.matches("hello"));
-
-  var c2 = new C2();
-  Expect.isTrue(c2 is S);
-  Expect.isTrue(c2 is S<int>);
-  Expect.isFalse(c2 is S<String>);
-  Expect.isFalse(c2.matches(c2));
-  Expect.isTrue(c2.matches(42));
-  Expect.isFalse(c2.matches("hello"));
-
-  var c2_int = new C2<int>();
-  Expect.isTrue(c2_int is S);
-  Expect.isTrue(c2_int is S<int>);
-  Expect.isFalse(c2_int is S<String>);
-  Expect.isFalse(c2_int.matches(c2));
-  Expect.isTrue(c2_int.matches(42));
-  Expect.isFalse(c2_int.matches("hello"));
-
-  var c2_String = new C2<String>();
-  Expect.isTrue(c2_String is S);
-  Expect.isTrue(c2_String is S<int>);
-  Expect.isFalse(c2_String is S<String>);
-  Expect.isFalse(c2_String.matches(c2));
-  Expect.isTrue(c2_String.matches(42));
-  Expect.isFalse(c2_String.matches("hello"));
-
-  var c3 = new C3();
-  Expect.isTrue(c3 is S);
-  Expect.isFalse(c3 is S<int>);
-  Expect.isTrue(c3 is S<String>);
-  Expect.isFalse(c3.matches(c2));
-  Expect.isFalse(c3.matches(42));
-  Expect.isTrue(c3.matches("hello"));
-}
diff --git a/tests/language_2/mixin/type_parameters_super_test.dart b/tests/language_2/mixin/type_parameters_super_test.dart
deleted file mode 100644
index ede714277bc..00000000000
--- a/tests/language_2/mixin/type_parameters_super_test.dart
+++ /dev/null
@@ -1,100 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class S<T> {
-  bool matches(o) => o is T;
-}
-
-class M {}
-
-class C0<T> = S with M;
-class C1<T> = S<T> with M;
-class C2<T> = S<int> with M;
-class C3 = S<String> with M;
-
-main() {
-  var c0 = new C0();
-  Expect.isTrue(c0 is S);
-  Expect.isFalse(c0 is S<int>);
-  Expect.isFalse(c0 is S<String>);
-  Expect.isTrue(c0.matches(c0));
-  Expect.isTrue(c0.matches(42));
-  Expect.isTrue(c0.matches("hello"));
-
-  var c0_int = new C0<int>();
-  Expect.isTrue(c0_int is S);
-  Expect.isFalse(c0_int is S<int>);
-  Expect.isFalse(c0_int is S<String>);
-  Expect.isTrue(c0_int.matches(c0));
-  Expect.isTrue(c0_int.matches(42));
-  Expect.isTrue(c0_int.matches("hello"));
-
-  var c0_String = new C0<String>();
-  Expect.isTrue(c0_String is S);
-  Expect.isFalse(c0_String is S<int>);
-  Expect.isFalse(c0_String is S<String>);
-  Expect.isTrue(c0_String.matches(c0));
-  Expect.isTrue(c0_String.matches(42));
-  Expect.isTrue(c0_String.matches("hello"));
-
-  var c1 = new C1();
-  Expect.isTrue(c1 is S);
-  Expect.isFalse(c1 is S<int>);
-  Expect.isFalse(c1 is S<String>);
-  Expect.isTrue(c1.matches(c1));
-  Expect.isTrue(c1.matches(42));
-  Expect.isTrue(c1.matches("hello"));
-
-  var c1_int = new C1<int>();
-  Expect.isTrue(c1_int is S);
-  Expect.isTrue(c1_int is S<int>);
-  Expect.isFalse(c1_int is S<String>);
-  Expect.isFalse(c1_int.matches(c1));
-  Expect.isTrue(c1_int.matches(42));
-  Expect.isFalse(c1_int.matches("hello"));
-
-  var c1_String = new C1<String>();
-  Expect.isTrue(c1_String is S);
-  Expect.isFalse(c1_String is S<int>);
-  Expect.isTrue(c1_String is S<String>);
-  Expect.isFalse(c1_String.matches(c1));
-  Expect.isFalse(c1_String.matches(42));
-  Expect.isTrue(c1_String.matches("hello"));
-
-  var c2 = new C2();
-  Expect.isTrue(c2 is S);
-  Expect.isTrue(c2 is S<int>);
-  Expect.isFalse(c2 is S<String>);
-  Expect.isFalse(c2.matches(c2));
-  Expect.isTrue(c2.matches(42));
-  Expect.isFalse(c2.matches("hello"));
-
-  var c2_int = new C2<int>();
-  Expect.isTrue(c2_int is S);
-  Expect.isTrue(c2_int is S<int>);
-  Expect.isFalse(c2_int is S<String>);
-  Expect.isFalse(c2_int.matches(c2));
-  Expect.isTrue(c2_int.matches(42));
-  Expect.isFalse(c2_int.matches("hello"));
-
-  var c2_String = new C2<String>();
-  Expect.isTrue(c2_String is S);
-  Expect.isTrue(c2_String is S<int>);
-  Expect.isFalse(c2_String is S<String>);
-  Expect.isFalse(c2_String.matches(c2));
-  Expect.isTrue(c2_String.matches(42));
-  Expect.isFalse(c2_String.matches("hello"));
-
-  var c3 = new C3();
-  Expect.isTrue(c3 is S);
-  Expect.isFalse(c3 is S<int>);
-  Expect.isTrue(c3 is S<String>);
-  Expect.isFalse(c3.matches(c2));
-  Expect.isFalse(c3.matches(42));
-  Expect.isTrue(c3.matches("hello"));
-}
diff --git a/tests/language_2/mixin/type_variable_test.dart b/tests/language_2/mixin/type_variable_test.dart
deleted file mode 100644
index 65ef6beb5a8..00000000000
--- a/tests/language_2/mixin/type_variable_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for generic mixin fields.
-
-class A<T> {
-  T field;
-}
-
-class B<T> = Object with A<T>;
-
-class C<T> extends B<T> {} //# 03: ok
-class D extends B<int> {} //# 04: ok
-
-class E = Object with A<int>;
-
-class F extends E {} //# 06: ok
-
-class G<T> extends Object with A<T> {} //# 07: ok
-class H extends Object with A<int> {} //# 08: ok
-
-void main() {
-  new A<num>(); //# 01: ok
-  new B<num>(); //# 02: ok
-  new C<num>(); //# 03: continued
-  new D(); //# 04: continued
-  new E(); //# 05: ok
-  new F(); //# 06: continued
-  new G<num>(); //# 07: continued
-  new H(); //# 08: continued
-}
diff --git a/tests/language_2/mixin/typedef_constructor_test.dart b/tests/language_2/mixin/typedef_constructor_test.dart
deleted file mode 100644
index e04daa5c30a..00000000000
--- a/tests/language_2/mixin/typedef_constructor_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  var field;
-  A(this.field);
-}
-
-class Mixin {
-  var mixinField = 54;
-}
-
-class MyClass = A with Mixin;
-
-main() {
-  var a = new MyClass(42);
-  Expect.equals(42, a.field);
-  Expect.equals(54, a.mixinField);
-}
diff --git a/tests/language_2/mixin/with_named_import_test.dart b/tests/language_2/mixin/with_named_import_test.dart
deleted file mode 100644
index 962055519c8..00000000000
--- a/tests/language_2/mixin/with_named_import_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:collection' as collection;
-
-class Foo extends Object with collection.ListMixin {
-  int get length => 0;
-  operator [](int index) => null;
-  void operator []=(int index, value) => null;
-  set length(int newLength) => null;
-}
-
-main() {
-  new Foo();
-}
diff --git a/tests/language_2/mixin/with_two_implicit_constructors_test.dart b/tests/language_2/mixin/with_two_implicit_constructors_test.dart
deleted file mode 100644
index a772cb27159..00000000000
--- a/tests/language_2/mixin/with_two_implicit_constructors_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  var field;
-  A.bar() : field = 1;
-  A() : field = 2;
-}
-
-class Mixin {}
-
-class B extends A with Mixin {}
-
-main() {
-  Expect.equals(2, new B().field);
-  new B.bar();
-  //    ^^^
-  // [analyzer] COMPILE_TIME_ERROR.NEW_WITH_UNDEFINED_CONSTRUCTOR
-  // [cfe] Couldn't find constructor 'B.bar'.
-}
diff --git a/tests/language_2/mixin_constructor_forwarding/const_constructor_test.dart b/tests/language_2/mixin_constructor_forwarding/const_constructor_test.dart
deleted file mode 100644
index 53e38c63311..00000000000
--- a/tests/language_2/mixin_constructor_forwarding/const_constructor_test.dart
+++ /dev/null
@@ -1,80 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class Mixin {
-  // Declares no instance variable.
-  int get x;
-  int get m => x;
-}
-
-class Base {
-  final int x;
-
-  // Non-const constructors.
-  Base.c1(this.x);
-  Base.c2([this.x = 37]);
-  Base.c3({this.x = 37});
-
-  // Non-forwarding generative const constructors.
-  const Base.c4(this.x);
-  const Base.c5([this.x = 37]);
-  const Base.c6({this.x = 37});
-
-  // Forwarding generative const constructors.
-  const Base.c7(int x) : this.c4(x);
-  const Base.c8([int x = 87]) : this.c4(x);
-  const Base.c9({int x = 87}) : this.c4(x);
-  const Base.c10(int x) : this.c5(x);
-  const Base.c11([int x = 87]) : this.c5(x);
-  const Base.c12({int x = 87}) : this.c5(x);
-  const Base.c13(int x) : this.c6(x: x);
-  const Base.c14([int x = 87]) : this.c6(x: x);
-  const Base.c15({int x = 87}) : this.c6(x: x);
-
-  // Non-generative constructor.
-  const factory Base() = Base.c5;
-}
-
-class Application = Base with Mixin;
-
-main() {
-  Expect.equals(42, new Application.c1(42).m);
-  Expect.equals(42, new Application.c2(42).m);
-  Expect.equals(42, new Application.c3(x: 42).m);
-  Expect.equals(42, const Application.c4(42).m);
-  Expect.equals(42, const Application.c5(42).m);
-  Expect.equals(42, const Application.c6(x: 42).m);
-  Expect.equals(42, const Application.c7(42).m);
-  Expect.equals(42, const Application.c8(42).m);
-  Expect.equals(42, const Application.c9(x: 42).m);
-  Expect.equals(42, const Application.c10(42).m);
-  Expect.equals(42, const Application.c11(42).m);
-  Expect.equals(42, const Application.c12(x: 42).m);
-  Expect.equals(42, const Application.c13(42).m);
-  Expect.equals(42, const Application.c14(42).m);
-  Expect.equals(42, const Application.c15(x: 42).m);
-
-  Expect.equals(37, new Application.c2().m); //# issue38304: ok
-  Expect.equals(37, new Application.c3().m);
-  Expect.equals(37, const Application.c5().m); //# issue38304: continued
-  Expect.equals(37, const Application.c6().m);
-  Expect.equals(87, const Application.c8().m); //# issue38304: continued
-  Expect.equals(87, const Application.c9().m);
-  Expect.equals(87, const Application.c11().m); //# issue38304: continued
-  Expect.equals(87, const Application.c12().m);
-  Expect.equals(87, const Application.c14().m); //# issue38304: continued
-  Expect.equals(87, const Application.c15().m);
-
-  // Only make forwarders const if original constructor is const.
-  const Application.c1(0); //# 01: compile-time error
-  const Application.c2(0); //# 02: compile-time error
-  const Application.c3(x: 0); //# 03: compile-time error
-
-  // Only insert forwarders for generative constructors.
-  new Application(); //# 04: compile-time error
-}
diff --git a/tests/language_2/mixin_constructor_forwarding/const_constructor_with_field_test.dart b/tests/language_2/mixin_constructor_forwarding/const_constructor_with_field_test.dart
deleted file mode 100644
index a9dc56b9702..00000000000
--- a/tests/language_2/mixin_constructor_forwarding/const_constructor_with_field_test.dart
+++ /dev/null
@@ -1,93 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class Mixin {
-  // Declares an instance variable.
-  // Declaration would be valid in a "const class", but mixin application
-  // won't get const constructor forwarders.
-  final int y = 0;
-
-  int get x;
-  int get m => x;
-}
-
-class Base {
-  final int x;
-
-  // Non-const constructors.
-  Base.c1(this.x);
-  Base.c2([this.x = 37]);
-  Base.c3({this.x = 37});
-
-  // Non-forwarding generative const constructors.
-  const Base.c4(this.x);
-  const Base.c5([this.x = 37]);
-  const Base.c6({this.x = 37});
-
-  // Forwarding generative const constructors.
-  const Base.c7(int x) : this.c4(x);
-  const Base.c8([int x = 87]) : this.c4(x);
-  const Base.c9({int x = 87}) : this.c4(x);
-  const Base.c10(int x) : this.c5(x);
-  const Base.c11([int x = 87]) : this.c5(x);
-  const Base.c12({int x = 87}) : this.c5(x);
-  const Base.c13(int x) : this.c6(x: x);
-  const Base.c14([int x = 87]) : this.c6(x: x);
-  const Base.c15({int x = 87}) : this.c6(x: x);
-
-  // Non-generative constructor.
-  const factory Base() = Base.c5;
-}
-
-class Application = Base with Mixin;
-
-main() {
-  Expect.equals(42, new Application.c1(42).m);
-  Expect.equals(42, new Application.c2(42).m);
-  Expect.equals(42, new Application.c3(x: 42).m);
-  Expect.equals(42, new Application.c4(42).m);
-  Expect.equals(42, new Application.c5(42).m);
-  Expect.equals(42, new Application.c6(x: 42).m);
-  Expect.equals(42, new Application.c7(42).m);
-  Expect.equals(42, new Application.c8(42).m);
-  Expect.equals(42, new Application.c9(x: 42).m);
-  Expect.equals(42, new Application.c10(42).m);
-  Expect.equals(42, new Application.c11(42).m);
-  Expect.equals(42, new Application.c12(x: 42).m);
-  Expect.equals(42, new Application.c13(42).m);
-  Expect.equals(42, new Application.c14(42).m);
-  Expect.equals(42, new Application.c15(x: 42).m);
-
-  Expect.equals(37, new Application.c2().m); //# issue38304: ok
-  Expect.equals(37, new Application.c3().m);
-  Expect.equals(37, new Application.c5().m); //# issue38304: continued
-  Expect.equals(37, new Application.c6().m);
-  Expect.equals(87, new Application.c8().m); //# issue38304: continued
-  Expect.equals(87, new Application.c9().m);
-  Expect.equals(87, new Application.c11().m); //# issue38304: continued
-  Expect.equals(87, new Application.c12().m);
-  Expect.equals(87, new Application.c14().m); //# issue38304: continued
-  Expect.equals(87, new Application.c15().m);
-
-  // Don't make constructors const if mixin declares instance variable.
-  const Application.c4(42); //# 00: compile-time error
-  const Application.c5(42); //# 01: compile-time error
-  const Application.c6(x: 42); //# 02: compile-time error
-  const Application.c7(42); //# 03: compile-time error
-  const Application.c8(42); //# 04: compile-time error
-  const Application.c9(x: 42); //# 05: compile-time error
-  const Application.c10(42); //# 06: compile-time error
-  const Application.c11(42); //# 07: compile-time error
-  const Application.c12(x: 42); //# 08: compile-time error
-  const Application.c13(42); //# 09: compile-time error
-  const Application.c14(42); //# 10: compile-time error
-  const Application.c15(x: 42); //# 11: compile-time error
-
-  // Only insert forwarders for generative constructors.
-  new Application(); //# 12: compile-time error
-}
diff --git a/tests/language_2/mixin_constructor_forwarding/mixin_constructor_parameter_forwarding_helper.dart b/tests/language_2/mixin_constructor_forwarding/mixin_constructor_parameter_forwarding_helper.dart
deleted file mode 100644
index 73094d5704d..00000000000
--- a/tests/language_2/mixin_constructor_forwarding/mixin_constructor_parameter_forwarding_helper.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "mixin_constructor_parameter_forwarding_test.dart";
-
-// A private class that the mixin application cannot access syntactically,
-// yet it needs an instance of it for the default value.
-class _Private {
-  const _Private();
-}
-
-class B2<T> implements B<T> {
-  final T x;
-  final Object y;
-  const B2(T x, [Object y = const _Private()])
-      : x = x,
-        y = y;
-}
-
-// Leaking the constant value in a non-constant way which cannot be used
-// for the default value of the mixin application.
-Object get privateValue => const _Private();
diff --git a/tests/language_2/mixin_constructor_forwarding/mixin_constructor_parameter_forwarding_test.dart b/tests/language_2/mixin_constructor_forwarding/mixin_constructor_parameter_forwarding_test.dart
deleted file mode 100644
index 00c923eaed2..00000000000
--- a/tests/language_2/mixin_constructor_forwarding/mixin_constructor_parameter_forwarding_test.dart
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that mixin application forwarding constructors correctly forward
-// optional parameter default values.
-
-import "package:expect/expect.dart";
-
-import "mixin_constructor_parameter_forwarding_helper.dart"
-    show B2, privateValue;
-
-class B<T> {
-  final T x;
-  final Object y;
-  const B(T x, [Object y = 0])
-      : x = x,
-        y = y;
-  const B.b1(T x, {Object y = 0})
-      : x = x,
-        y = y;
-  const B.b2(T x, [Object y = const <int>[0]])
-      : x = x,
-        y = y;
-}
-
-mixin M1 on B<int> {
-  void check(int x, Object y) {
-    Expect.identical(x, this.x);
-    Expect.identical(y, this.y);
-  }
-}
-
-mixin M2<T> on B<T> {
-  void check(T x, Object y) {
-    Expect.identical(x, this.x);
-    Expect.identical(y, this.y);
-  }
-}
-
-class A1 = B<int> with M1;
-class A2 = B<int> with M2<int>;
-class P1 = B2<int> with M2<int>;
-
-main() {
-  A1(1, 2).check(1, 2);
-  A1.b1(1, y: 2).check(1, 2);
-  A1.b2(1, 2).check(1, 2);
-  A2(1, 2).check(1, 2);
-  A2.b1(1, y: 2).check(1, 2);
-  A2.b2(1, 2).check(1, 2);
-  P1(1, 2).check(1, 2);
-
-  A1(1).check(1, 0);
-  A1.b1(1).check(1, 0);
-  A1.b2(1).check(1, const <int>[0]);
-  A2(1).check(1, 0);
-  A2.b1(1).check(1, 0);
-  A2.b2(1).check(1, const <int>[0]);
-  P1(1).check(1, privateValue);
-
-  const A1(1, 2).check(1, 2);
-  const A1.b1(1, y: 2).check(1, 2);
-  const A1.b2(1, 2).check(1, 2);
-  const A2(1, 2).check(1, 2);
-  const A2.b1(1, y: 2).check(1, 2);
-  const A2.b2(1, 2).check(1, 2);
-  const P1(1, 2).check(1, 2);
-
-  const A1(1).check(1, 0);
-  const A1.b1(1).check(1, 0);
-  const A1.b2(1).check(1, const <int>[0]);
-  const A2(1).check(1, 0);
-  const A2.b1(1).check(1, 0);
-  const A2.b2(1).check(1, const <int>[0]);
-  const P1(1).check(1, privateValue);
-}
diff --git a/tests/language_2/mixin_constructor_forwarding/optional_named_parameters_test.dart b/tests/language_2/mixin_constructor_forwarding/optional_named_parameters_test.dart
deleted file mode 100644
index 8b40cb7af26..00000000000
--- a/tests/language_2/mixin_constructor_forwarding/optional_named_parameters_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class Mixin {
-  int get x;
-  int get m => x;
-}
-
-class Base {
-  final int x;
-  Base.c1(this.x);
-  Base.c2({this.x = 37});
-  Base.c3(int x) : this.c1(x);
-  Base.c4({int x = 37}) : this.c1(x);
-  Base.c5(int x) : this.c2(x: x);
-  Base.c6({int x = 37}) : this.c2(x: x);
-  factory Base() = Base.c2;
-}
-
-class Application = Base with Mixin;
-
-main() {
-  Expect.equals(42, new Application.c1(42).m);
-  Expect.equals(42, new Application.c2(x: 42).m);
-  Expect.equals(42, new Application.c3(42).m);
-  Expect.equals(42, new Application.c4(x: 42).m);
-  Expect.equals(42, new Application.c5(42).m);
-  Expect.equals(42, new Application.c6(x: 42).m);
-  Expect.equals(37, new Application.c2().m);
-  Expect.equals(37, new Application.c4().m);
-  Expect.equals(37, new Application.c6().m);
-
-  // Only insert forwarders for generative constructors.
-  new Application(); //# 01: compile-time error
-}
diff --git a/tests/language_2/mixin_constructor_forwarding/optional_positional_parameters_test.dart b/tests/language_2/mixin_constructor_forwarding/optional_positional_parameters_test.dart
deleted file mode 100644
index e5e1b4954b2..00000000000
--- a/tests/language_2/mixin_constructor_forwarding/optional_positional_parameters_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class Mixin {
-  int get x;
-  int get m => x;
-}
-
-class Base {
-  final int x;
-  Base.c1(this.x);
-  Base.c2([this.x = 37]);
-  Base.c3(int x) : this.c1(x);
-  Base.c4([int x = 37]) : this.c1(x);
-  Base.c5(int x) : this.c2(x);
-  Base.c6([int x = 37]) : this.c2(x);
-  factory Base() = Base.c2;
-}
-
-class Application = Base with Mixin;
-
-main() {
-  Expect.equals(42, new Application.c1(42).m);
-  Expect.equals(42, new Application.c2(42).m);
-  Expect.equals(42, new Application.c3(42).m);
-  Expect.equals(42, new Application.c4(42).m);
-  Expect.equals(42, new Application.c5(42).m);
-  Expect.equals(42, new Application.c6(42).m);
-  Expect.equals(37, new Application.c2().m);
-  Expect.equals(37, new Application.c4().m);
-  Expect.equals(37, new Application.c6().m);
-
-  // Only insert forwarders for generative constructors.
-  new Application(); //# 01: compile-time error
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_factory_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_factory_test.dart
deleted file mode 100644
index 9388a3b17b7..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_factory_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// A mixin declaration cannot declare any (factory) constructors.
-
-class A {}
-
-class B implements A {
-  const B();
-}
-
-mixin M on A {
-  factory M.foo() => null; //# 01: compile-time error
-  const factory M.bar() = B; //# 02: compile-time error
-  M.baz(); //# 03: compile-time error
-}
-
-class MA extends A with M {}
-
-class N {
-  // It's OK for a mixin derived from a class to have factory constructors.
-  factory N.quux() => null; //# none: ok
-  N.bar(); //# 04: compile-time error
-}
-
-class NA extends A with N {}
-
-main() {
-  new MA();
-  new NA();
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_00_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_00_test.dart
deleted file mode 100644
index 2ca0bcae55a..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_00_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class I<X> {}
-
-mixin M0<T> on I<T> {}
-
-///////////////////////////////////////////////////////
-// Inference happens from superclasses to subclasses
-///////////////////////////////////////////////////////
-
-// Error since class hierarchy is inconsistent
-class A00 extends I with M0<int> {}
-//    ^
-// [cfe] 'I with M0' can't implement both 'I<dynamic>' and 'I<int>'
-// [cfe] 'I<dynamic>' doesn't implement 'I<int>' so it can't be used with 'M0<int>'.
-//                       ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-
-void main() {}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_01_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_01_test.dart
deleted file mode 100644
index 794744cb6b8..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_01_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class I<X> {}
-
-mixin M0<T> on I<T> {}
-
-mixin M1<T> on I<T> {}
-
-///////////////////////////////////////////////////////
-// Inference happens from superclasses to subclasses
-///////////////////////////////////////////////////////
-
-// Error since class hierarchy is inconsistent
-class A00 extends I with M0, M1<int> {}
-//    ^
-// [cfe] 'I with M0, M1' can't implement both 'I<dynamic>' and 'I<int>'
-// [cfe] '_A00&I&M0' doesn't implement 'I<int>' so it can't be used with 'M1<int>'.
-//                           ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-
-void main() {}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_02_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_02_test.dart
deleted file mode 100644
index 5a91874d8a8..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_02_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class I<X> {}
-
-mixin M0<T> implements I<T> {}
-
-mixin M1<T> on I<T> {}
-
-///////////////////////////////////////////////////////
-// Inference happens from superclasses to subclasses
-///////////////////////////////////////////////////////
-
-// Error since class hierarchy is inconsistent
-class A00 with M0, M1<int> {}
-//    ^
-// [cfe] 'Object with M0, M1' can't implement both 'I<dynamic>' and 'I<int>'
-// [cfe] '_A00&Object&M0' doesn't implement 'I<int>' so it can't be used with 'M1<int>'.
-//                 ^^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-
-void main() {}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_03_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_03_test.dart
deleted file mode 100644
index 3da5db19348..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_03_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class I<X> {}
-
-mixin M0<T> implements I<T> {}
-
-//////////////////////////////////////////////////////
-// Inference happens from superclasses to subclasses
-///////////////////////////////////////////////////////
-
-// Error since class hierarchy is inconsistent
-class A00 extends Object with M0 implements I<int> {}
-//    ^^^
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_GENERIC_INTERFACES
-// [cfe] 'A00' can't implement both 'I<dynamic>' and 'I<int>'
-
-void main() {}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_04_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_04_test.dart
deleted file mode 100644
index 8b83d4a479c..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_04_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class I<X> {}
-
-mixin M0<T> implements I<T> {}
-
-//////////////////////////////////////////////////////
-// Inference does not use implements constraints on mixin
-///////////////////////////////////////////////////////
-
-// Error since class hierarchy is inconsistent
-class A00 with M0 implements I<int> {}
-//    ^^^
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_GENERIC_INTERFACES
-// [cfe] 'A00' can't implement both 'I<dynamic>' and 'I<int>'
-
-void main() {}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_05_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_05_test.dart
deleted file mode 100644
index 9e6ca94f790..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_05_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class I<X> {}
-
-mixin M0<T> implements I<T> {}
-
-mixin M1<T> implements I<T> {}
-
-//////////////////////////////////////////////////////
-// Inference does not use implements constraints on mixin
-///////////////////////////////////////////////////////
-
-// Error since class hierarchy is inconsistent
-class A00 extends I<int> with M0<int>, M1 {}
-//    ^^^
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_GENERIC_INTERFACES
-// [cfe] 'I with M0, M1' can't implement both 'I<int>' and 'I<dynamic>'
-
-void main() {}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_06_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_06_test.dart
deleted file mode 100644
index e1e18418a65..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_06_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class I<X> {}
-
-class J<X> {}
-
-mixin M0<S, T> implements I<S>, J<T> {}
-
-mixin M1<S, T> implements I<S>, J<T> {}
-
-//////////////////////////////////////////////////////
-// Inference does not use implements constraints on mixin
-///////////////////////////////////////////////////////
-
-class A00 extends I<int> with M0 {}
-//    ^^^
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_GENERIC_INTERFACES
-// [cfe] 'I with M0' can't implement both 'I<int>' and 'I<dynamic>'
-
-class A01 extends J<int> with M1 {}
-//    ^^^
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_GENERIC_INTERFACES
-// [cfe] 'J with M1' can't implement both 'J<int>' and 'J<dynamic>'
-
-// Error since class hierarchy is inconsistent
-class A02 extends A00 implements A01 {}
-//    ^^^
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_GENERIC_INTERFACES
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_GENERIC_INTERFACES
-// [cfe] 'A02' can't implement both 'I<int>' and 'I<dynamic>'
-// [cfe] 'A02' can't implement both 'J<dynamic>' and 'J<int>'
-
-void main() {}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_07_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_07_test.dart
deleted file mode 100644
index fadea9d8d3f..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_07_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class I<X> {}
-
-mixin M0<X, Y extends Comparable<Y>> on I<X> {}
-
-class M1 implements I<int> {}
-
-//////////////////////////////////////////////////////
-// Inference does not produce super-bounded types
-///////////////////////////////////////////////////////
-
-// M0 is inferred as M0<int, Comparable<dynamic>>
-// Error since super-bounded type not allowed
-class A extends M1 with M0 {}
-//                      ^^
-// [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-// [cfe] Inferred type argument 'Comparable<dynamic>' doesn't conform to the bound 'Comparable<Y>' of the type variable 'Y' on 'M0'.
-
-void main() {}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_08_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_08_test.dart
deleted file mode 100644
index e6d98491721..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_08_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class I<X, Y> {}
-
-mixin M0<T> implements I<T, int> {}
-
-mixin M1<T> implements I<String, T> {}
-
-//////////////////////////////////////////////////////
-// Inference is not bi-directional
-///////////////////////////////////////////////////////
-
-// M0<String>, M1<int> is a solution, but we shouldn't find it
-// M0 inferred as M0<dynamic>
-// M1 inferred as M1<dynamic>
-class A with M0, M1 {}
-//    ^
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_GENERIC_INTERFACES
-// [cfe] 'Object with M0, M1' can't implement both 'I<dynamic, int>' and 'I<String, dynamic>'
-
-void main() {}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_09_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_09_test.dart
deleted file mode 100644
index e589fb7e08b..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_09_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class I<X, Y> {}
-
-mixin M0<T> implements I<T, List<T>> {}
-
-mixin M1<T> implements I<List<T>, T> {}
-
-//////////////////////////////////////////////////////
-// Inference does not produce infinite types
-///////////////////////////////////////////////////////
-
-// No solution, even with unification, since solution
-// requires that I<List<U0>, U0> == I<U1, List<U1>>
-// for some U0, U1, and hence that:
-// U0 = List<U1>
-// U1 = List<U0>
-// which has no finite solution
-class A with M0, M1 {}
-//    ^
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_GENERIC_INTERFACES
-// [cfe] 'Object with M0, M1' can't implement both 'I<dynamic, List<dynamic>>' and 'I<List<dynamic>, dynamic>'
-
-void main() {}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_10_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_10_test.dart
deleted file mode 100644
index 9dc67535391..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_10_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class I<T> {}
-
-class J<T> {}
-
-mixin M0<T> implements I<T>, J<T> {}
-
-//////////////////////////////////////////////////////
-// Over-constrained results are caught
-///////////////////////////////////////////////////////
-
-class A with I<int>, J<double>, M0 {}
-//    ^
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_GENERIC_INTERFACES
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_GENERIC_INTERFACES
-// [cfe] 'Object with I, J, M0' can't implement both 'I<int>' and 'I<dynamic>'
-// [cfe] 'Object with I, J, M0' can't implement both 'J<double>' and 'J<dynamic>'
-
-void main() {}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_11_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_11_test.dart
deleted file mode 100644
index 90d66d35808..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_invalid_11_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class I<T> {}
-
-mixin M1<T> on I<T> {}
-
-//////////////////////////////////////////////////////
-// Mixin type argument inference is not performed on
-// the "on" clause of a mixin
-///////////////////////////////////////////////////////
-
-mixin A00Mixin on I<int>, M1 {}
-//    ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_GENERIC_INTERFACES
-// [cfe] 'I with M1' can't implement both 'I<int>' and 'I<dynamic>'
-
-void main() {}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A00_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A00_test.dart
deleted file mode 100644
index 4bbfab6c893..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A00_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M1 is inferred as M1<int>
-class A00 extends I<int> with M1 {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-void main() {
-  Expect.type<M1<int>>(new A00()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A01_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A01_test.dart
deleted file mode 100644
index f3f487d4f8d..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A01_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M1 is inferred as M1<int>
-class A01 extends C0<int> with M1 {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-void main() {
-  Expect.type<M1<int>>(new A01()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A02_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A02_test.dart
deleted file mode 100644
index 828e4c61a3e..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A02_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M1 is inferred as M1<int>
-class A02 extends C1<int> with M1 {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-void main() {
-  Expect.type<M1<int>>(new A02()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A10_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A10_test.dart
deleted file mode 100644
index 9ee967e97e4..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A10_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M1 is inferred as M1<int>
-class A10 extends I<int> with M3, M1 {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-void main() {
-  Expect.type<M1<int>>(new A10()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A11_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A11_test.dart
deleted file mode 100644
index f3417a21eef..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A11_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M1 is inferred as M1<int>
-class A11 extends C0<int> with M3, M1 {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-void main() {
-  Expect.type<M1<int>>(new A11()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A12_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A12_test.dart
deleted file mode 100644
index aaf8a21998c..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A12_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M1 is inferred as M1<int>
-class A12 extends C1<int> with M3, M1 {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-void main() {
-  Expect.type<M1<int>>(new A12()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A20_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A20_test.dart
deleted file mode 100644
index d03358811bc..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A20_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M4 is inferred as M4<int, double>
-class A20 extends C2 with M4 {
-  void check() {
-    // Verify that M4.S is exactly int
-    int Function(int) f0 = this.value0;
-    // Verify that M4.T is exactly double
-    double Function(double) f1 = this.value1;
-  }
-}
-
-void main() {
-  Expect.type<M4<int, double>>(new A20()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A21_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A21_test.dart
deleted file mode 100644
index e3d4e40960b..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A21_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M4 is inferred as M4<int, double>
-class A21 extends C3 with M2<int>, M4 {
-  void check() {
-    // Verify that M4.S is exactly int
-    int Function(int) f0 = this.value0;
-    // Verify that M4.T is exactly double
-    double Function(double) f1 = this.value1;
-  }
-}
-
-void main() {
-  Expect.type<M4<int, double>>(new A21()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A22_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A22_test.dart
deleted file mode 100644
index a543c73c563..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A22_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M4 is inferred as M4<int, double>
-class A22 extends C2 with M1, M4 {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-    // Verify that M4.S is exactly int
-    int Function(int) f0 = this.value0;
-    // Verify that M4.T is exactly double
-    double Function(double) f1 = this.value1;
-  }
-}
-
-void main() {
-  Expect.type<M4<int, double>>(new A22()..check());
-  Expect.type<M1<int>>(new A22()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A23_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A23_test.dart
deleted file mode 100644
index 1bd13eeea1d..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A23_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-mixin _M5<T> on I<T> implements J<T> {}
-
-// Inference here puts J<int> in the superclass hierarchy
-class _A23 extends C0<int> with _M5 {}
-
-// Inference here should get J<int> for M4.T
-// if inference for _M5 is done first (correctly)
-// and otherwise J<dynamic>
-class A23 extends _A23 with M4 {
-  void check() {
-    // Verify that M4.S is exactly int
-    int Function(int) f0 = this.value0;
-    // Verify that M4.T is exactly int
-    int Function(int) f1 = this.value1;
-  }
-}
-
-void main() {
-  Expect.type<M4<int, int>>(new A23()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A30_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A30_test.dart
deleted file mode 100644
index 48027c91d0f..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A30_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-mixin M5<S, T extends String> on I<S> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M5 is inferred as M5<int, String>
-class A30 extends C0<int> with M5 {
-  void check() {
-    // Verify that M5.S is exactly int
-    int Function(int) f0 = this.value0;
-    // Verify that M5.T is exactly String
-    String Function(String) f1 = this.value1;
-  }
-}
-
-void main() {
-  Expect.type<M5<int, String>>(new A30()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A31_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A31_test.dart
deleted file mode 100644
index 88dfa7e2537..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A31_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-mixin M6<S, T extends S> on I<S> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M6 is inferred as M6<int, int>
-class A31 extends C0<int> with M6 {
-  void check() {
-    // Verify that M6.S is exactly int
-    int Function(int) f0 = this.value0;
-    // Verify that M6.T is exactly int
-    int Function(int) f1 = this.value1;
-  }
-}
-
-void main() {
-  Expect.type<M6<int, int>>(new A31()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A42_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A42_test.dart
deleted file mode 100644
index 30e4c4ab62d..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_A42_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-mixin M7<T> on I<List<T>> {
-  T Function(T) get value0 => null;
-}
-
-class A40<T> extends I<List<T>> {}
-
-class A41<T> extends A40<Map<T, T>> {}
-
-// M7 is inferred as M7<Map<int, int>>
-class A42 extends A41<int> with M7 {
-  void check() {
-    // Verify that M7.T is exactly Map<int, int>
-    Map<int, int> Function(Map<int, int>) f1 = this.value0;
-  }
-}
-
-void main() {
-  Expect.type<M7<Map<int, int>>>(new A42()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_B00_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_B00_test.dart
deleted file mode 100644
index 13d41f7546e..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_B00_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M1 is inferred as M1<int>
-class B00 extends Object with I<int>, M1 {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-void main() {
-  Expect.type<M1<int>>(new B00()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_B01_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_B01_test.dart
deleted file mode 100644
index b75bc8507d5..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_B01_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M1 is inferred as M1<int>
-class B01 extends Object with C1<int>, M1 {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-void main() {
-  Expect.type<M1<int>>(new B01()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_B02_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_B02_test.dart
deleted file mode 100644
index c7d7f1ef2c0..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_B02_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M1 is inferred as M1<int>
-class B02 extends I<int> with M0<int>, M1 {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-void main() {
-  Expect.type<M1<int>>(new B02()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_B03_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_B03_test.dart
deleted file mode 100644
index 02bce346461..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_B03_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M1 is inferred as M1<int>
-class B03 extends Object with M2<int>, M1 {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-void main() {
-  Expect.type<M1<int>>(new B03()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_B10_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_B10_test.dart
deleted file mode 100644
index 15c356421ad..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_B10_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M1 is inferred as M1<int>
-class B10 extends Object with I<int>, M3, M1 {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-void main() {
-  Expect.type<M1<int>>(new B10()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_B11_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_B11_test.dart
deleted file mode 100644
index d7592d79cd3..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_B11_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M1 is inferred as M1<int>
-class B11 extends Object with C1<int>, M3, M1 {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-void main() {
-  Expect.type<M1<int>>(new B11()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_B12_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_B12_test.dart
deleted file mode 100644
index 2cd0960cb58..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_B12_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M1 is inferred as M1<int>
-class B12 extends I<int> with M0<int>, M3, M1 {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-void main() {
-  Expect.type<M1<int>>(new B12()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_B13_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_B13_test.dart
deleted file mode 100644
index a3254218fb8..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_B13_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M1 is inferred as M1<int>
-class B13 extends Object with M2<int>, M3, M1 {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-void main() {
-  Expect.type<M1<int>>(new B13()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_C00_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_C00_test.dart
deleted file mode 100644
index 2f5bc276dc9..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_C00_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M1 is inferred as M1<int>
-class C00 with I<int>, M1 {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-void main() {
-  Expect.type<M1<int>>(new C00()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_C01_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_C01_test.dart
deleted file mode 100644
index 922530c8e3a..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_C01_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M1 is inferred as M1<int>
-class C01 with C1<int>, M1 {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-void main() {
-  Expect.type<M1<int>>(new C01()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_C02_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_C02_test.dart
deleted file mode 100644
index 0f7b8897d59..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_C02_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M1 is inferred as M1<int>
-class C02 with I<int>, M0<int>, M1 {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-void main() {
-  Expect.type<M1<int>>(new C02()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_C03_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_C03_test.dart
deleted file mode 100644
index 8f1d4b76752..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_C03_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M1 is inferred as M1<int>
-class C03 with M2<int>, M1 {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-void main() {
-  Expect.type<M1<int>>(new C03()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_C10_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_C10_test.dart
deleted file mode 100644
index 1672941569c..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_C10_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M1 is inferred as M1<int>
-class C10 with I<int>, M3, M1 {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-void main() {
-  Expect.type<M1<int>>(new C10()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_C11_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_C11_test.dart
deleted file mode 100644
index ee45f72c4f8..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_C11_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M1 is inferred as M1<int>
-class C11 with C1<int>, M3, M1 {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-void main() {
-  Expect.type<M1<int>>(new C11()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_C12_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_C12_test.dart
deleted file mode 100644
index 5af11e5f7b2..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_C12_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M1 is inferred as M1<int>
-class C12 with I<int>, M0<int>, M3, M1 {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-void main() {
-  Expect.type<M1<int>>(new C12()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_C13_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_C13_test.dart
deleted file mode 100644
index 1343291639e..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_C13_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-// M1 is inferred as M1<int>
-class C13 with M2<int>, M3, M1 {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-void main() {
-  Expect.type<M1<int>>(new C13()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_mixin_applications_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_mixin_applications_test.dart
deleted file mode 100644
index 1a9d410bca8..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_inference_valid_mixin_applications_test.dart
+++ /dev/null
@@ -1,448 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-///////////////////////////////////////////////////////
-// Tests for inference of type arguments to mixins in
-// class definition mixin applications of the form
-// `class Foo = A with M`
-///////////////////////////////////////////////////////
-
-class I<X> {}
-
-class C0<T> extends I<T> {}
-class C1<T> implements I<T> {}
-
-mixin M0<T> on I<T> {
-}
-
-mixin M1<T> on I<T> {
-  T Function(T) get value => null;
-}
-
-mixin M2<T> implements I<T> {}
-
-mixin M3<T> on I<T> {}
-
-class J<X> {}
-class C2 extends C1<int> implements J<double> {}
-class C3 extends J<double> {}
-
-mixin M4<S, T> on I<S>, J<T> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-///////////////////////////////////////////////////////
-// Inference of a single mixin from a super class works
-///////////////////////////////////////////////////////
-
-mixin A00Mixin on M1<int> {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-// M1 is inferred as M1<int>
-class A00 = I<int> with M1, A00Mixin;
-
-mixin A01Mixin on M1<int> {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-// M1 is inferred as M1<int>
-class A01 = C0<int> with M1, A01Mixin;
-
-mixin A02Mixin on M1<int> {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-// M1 is inferred as M1<int>
-class A02 = C1<int> with M1, A02Mixin;
-
-///////////////////////////////////////////////////////
-// Inference of a single mixin from another mixin works
-///////////////////////////////////////////////////////
-
-mixin B00Mixin on M1<int> {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-// M1 is inferred as M1<int>
-class B00 = Object with I<int>, M1, B00Mixin;
-
-mixin B01Mixin on M1<int> {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-// M1 is inferred as M1<int>
-class B01 = Object with C1<int>, M1, B01Mixin;
-
-mixin B02Mixin on M0<int>, M1<int> {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-// M1 is inferred as M1<int>
-class B02 = I<int> with M0<int>, M1, B02Mixin;
-
-mixin B03Mixin on M2<int>, M1<int> {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-// M1 is inferred as M1<int>
-class B03 = Object with M2<int>, M1, B03Mixin;
-
-///////////////////////////////////////////////////////
-// Inference of a single mixin from another mixin works
-// with the shorthand syntax
-///////////////////////////////////////////////////////
-
-mixin C00Mixin on M1<int> {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-// M1 is inferred as M1<int>
-class C00 = Object with I<int>, M1, C00Mixin;
-
-mixin C01Mixin on C1<int>, M1<int> {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-// M1 is inferred as M1<int>
-class C01 = Object with C1<int>, M1, C01Mixin;
-
-mixin C02Mixin on M0<int>, M1<int> {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-// M1 is inferred as M1<int>
-class C02 = Object with I<int>, M0<int>, M1, C02Mixin;
-
-mixin C03Mixin on M2<int>, M1<int> {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-// M1 is inferred as M1<int>
-class C03 = Object with M2<int>, M1, C03Mixin;
-
-///////////////////////////////////////////////////////
-// Inference of two mixins from a super class works
-///////////////////////////////////////////////////////
-
-mixin A10Mixin on M3<int>, M1<int> {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-// M1 is inferred as M1<int>
-class A10 = I<int> with M3, M1, A10Mixin;
-
-mixin A11Mixin on C0<int>, M3<int>, M1<int> {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-// M1 is inferred as M1<int>
-class A11 = C0<int> with M3, M1, A11Mixin;
-
-mixin A12Mixin on C1<int>, M3<int>, M1<int> {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-// M1 is inferred as M1<int>
-class A12 = C1<int> with M3, M1, A12Mixin;
-
-///////////////////////////////////////////////////////
-// Inference of two mixins from another mixin works
-///////////////////////////////////////////////////////
-
-mixin B10Mixin on I<int>, M3<int>, M1<int> {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-// M1 is inferred as M1<int>
-class B10 = Object with I<int>, M3, M1, B10Mixin;
-
-mixin B11Mixin on C1<int>, M3<int>, M1<int> {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-// M1 is inferred as M1<int>
-class B11 = Object with C1<int>, M3, M1, B11Mixin;
-
-mixin B12Mixin on I<int>, M0<int>, M3<int>, M1<int> {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-// M1 is inferred as M1<int>
-class B12 = I<int> with M0<int>, M3, M1, B12Mixin;
-
-mixin B13Mixin on M2<int>, M3<int>, M1<int> {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-// M1 is inferred as M1<int>
-class B13 = Object with M2<int>, M3, M1, B13Mixin;
-
-///////////////////////////////////////////////////////
-// Inference of a single mixin from another mixin works
-// with the shorthand syntax
-///////////////////////////////////////////////////////
-
-mixin C10Mixin on I<int>, M3<int>, M1<int> {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-// M1 is inferred as M1<int>
-class C10 = Object with I<int>, M3, M1, C10Mixin;
-
-mixin C11Mixin on C1<int>, M3<int>, M1<int> {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-// M1 is inferred as M1<int>
-class C11 = Object with C1<int>, M3, M1, C11Mixin;
-
-mixin C12Mixin on I<int>, M0<int>, M3<int>, M1<int> {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-// M1 is inferred as M1<int>
-class C12 = Object with I<int>, M0<int>, M3, M1, C12Mixin;
-
-mixin C13Mixin on M2<int>, M3<int>, M1<int> {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-  }
-}
-
-// M1 is inferred as M1<int>
-class C13 = Object with M2<int>, M3, M1, C13Mixin;
-
-
-///////////////////////////////////////////////////////
-// Inference from multiple constraints works
-///////////////////////////////////////////////////////
-
-
-mixin A20Mixin on C2, M4<int, double> {
-  void check() {
-    // Verify that M4.S is exactly int
-    int Function(int) f0 = this.value0;
-    // Verify that M4.T is exactly double
-    double Function(double) f1 = this.value1;
-  }
-}
-
-// M4 is inferred as M4<int, double>
-class A20 = C2 with M4, A20Mixin;
-
-mixin A21Mixin on C3, M2<int>, M4<int, double> {
-  void check() {
-    // Verify that M4.S is exactly int
-    int Function(int) f0 = this.value0;
-    // Verify that M4.T is exactly double
-    double Function(double) f1 = this.value1;
-  }
-}
-
-// M4 is inferred as M4<int, double>
-class A21 = C3 with M2<int>, M4, A21Mixin;
-
-mixin A22Mixin on C2, M1<int>, M4<int, double> {
-  void check() {
-    // Verify that M1.T is exactly int
-    int Function(int) f = this.value;
-    // Verify that M4.S is exactly int
-    int Function(int) f0 = this.value0;
-    // Verify that M4.T is exactly double
-    double Function(double) f1 = this.value1;
-  }
-}
-
-// M4 is inferred as M4<int, double>
-class A22 = C2 with M1, M4, A22Mixin;
-
-mixin _M5<T> on I<T> implements J<T> {}
-
-// Inference here puts J<int> in the superclass hierarchy
-class _A23 extends C0<int> with _M5 {}
-
-mixin A23Mixin on _A23, M4<int, int> {
-  void check() {
-    // Verify that M4.S is exactly int
-    int Function(int) f0 = this.value0;
-    // Verify that M4.T is exactly int
-    int Function(int) f1 = this.value1;
-  }
-}
-
-// Inference here should get J<int> for M4.T
-// if inference for _A23 is done first (correctly)
-// and otherwise J<dynamic>
-class A23 = _A23 with M4, A23Mixin;
-
-///////////////////////////////////////////////////////
-// Unconstrained parameters go to bounds
-///////////////////////////////////////////////////////
-
-mixin M5<S, T extends String> on I<S> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-mixin M6<S, T extends S> on I<S> {
-  S Function(S) get value0 => null;
-  T Function(T) get value1 => null;
-}
-
-mixin A30Mixin on C0<int>, M5<int, String> {
-  void check() {
-    // Verify that M5.S is exactly int
-    int Function(int) f0 = this.value0;
-    // Verify that M5.T is exactly String
-    String Function(String) f1 = this.value1;
-  }
-}
-
-// M5 is inferred as M5<int, String>
-class A30 = C0<int> with M5, A30Mixin;
-
-mixin A31Mixin on C0<int>, M6<int, int> {
-  void check() {
-    // Verify that M6.S is exactly int
-    int Function(int) f0 = this.value0;
-    // Verify that M6.T is exactly int
-    int Function(int) f1 = this.value1;
-  }
-}
-
-// M6 is inferred as M6<int, int>
-class A31 = C0<int> with M6, A31Mixin;
-
-///////////////////////////////////////////////////////
-// Non-trivial constraints should work
-///////////////////////////////////////////////////////
-
-mixin M7<T> on I<List<T>> {
-  T Function(T) get value0 => null;
-}
-
-class A40<T> extends I<List<T>> {}
-
-class A41<T> extends A40<Map<T, T>> {}
-
-mixin A42Mixin on A41<int>, M7<Map<int, int>> {
-  void check() {
-    // Verify that M7.T is exactly Map<int, int>
-    Map<int, int> Function(Map<int, int>) f1 = this.value0;
-  }
-}
-
-// M7 is inferred as M7<Map<int, int>>
-class A42 = A41<int> with M7, A42Mixin;
-
-void main() {
-  Expect.type<M1<int>>(new A00()..check());
-  Expect.type<M1<int>>(new A01()..check());
-  Expect.type<M1<int>>(new A02()..check());
-
-  Expect.type<M1<int>>(new B00()..check());
-  Expect.type<M1<int>>(new B01()..check());
-  Expect.type<M1<int>>(new B02()..check());
-  Expect.type<M1<int>>(new B03()..check());
-
-  Expect.type<M1<int>>(new C00()..check());
-  Expect.type<M1<int>>(new C01()..check());
-  Expect.type<M1<int>>(new C02()..check());
-  Expect.type<M1<int>>(new C03()..check());
-
-  Expect.type<M1<int>>(new A10()..check());
-  Expect.type<M1<int>>(new A11()..check());
-  Expect.type<M1<int>>(new A12()..check());
-
-  Expect.type<M1<int>>(new B10()..check());
-  Expect.type<M1<int>>(new B11()..check());
-  Expect.type<M1<int>>(new B12()..check());
-  Expect.type<M1<int>>(new B13()..check());
-
-  Expect.type<M1<int>>(new C10()..check());
-  Expect.type<M1<int>>(new C11()..check());
-  Expect.type<M1<int>>(new C12()..check());
-  Expect.type<M1<int>>(new C13()..check());
-
-  Expect.type<M4<int, double>>(new A20()..check());
-  Expect.type<M4<int, double>>(new A21()..check());
-  Expect.type<M4<int, double>>(new A22()..check());
-  Expect.type<M1<int>>(new A22()..check());
-  Expect.type<M4<int, int>>(new A23()..check());
-
-  Expect.type<M5<int, String>>(new A30()..check());
-  Expect.type<M6<int, int>>(new A31()..check());
-
-  Expect.type<M7<Map<int, int>>>(new A42()..check());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_invalid_application_supertype_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_invalid_application_supertype_test.dart
deleted file mode 100644
index be90fa8e591..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_invalid_application_supertype_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test various invalid mixin applications where the supertype doesn't
-// implement the super-interfaces.
-
-abstract class UnaryNum {
-  num foo(num x) => x;
-}
-
-abstract class UnaryInt {
-  num foo(int x) => x;
-}
-
-mixin M1 on UnaryNum {}
-
-class _ = Object with M1; //# 01: compile-time error
-class _ = Null with M1; //# 02: compile-time error
-class _ = UnaryInt with M1;  //# 03: compile-time error
-
-mixin M2 on UnaryNum, UnaryInt {}
-
-class _ = UnaryInt with M2;  //# 04: compile-time error
-class _ = UnaryNum with M2;  //# 05: compile-time error
-
-// Note that it is not sufficient for the application to declare that it
-// implements the super-interface.
-abstract class _ = Object with M1 implements UnaryNum;  //# 06: compile-time error
-
-// Nor is it sufficient, in the case of an anonymous mixin application, for the
-// containing class to declare that it implements the super-interface.
-abstract class _ extends Object with M1 implements UnaryNum {}  //# 07: compile-time error
-
-main() {
-  // M1 and M2 are valid types.
-  Expect.notType<M1>(null);
-  Expect.notType<M2>(null);
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_invalid_override_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_invalid_override_test.dart
deleted file mode 100644
index 64dad10d133..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_invalid_override_test.dart
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test various invalid super-constraints for mixin declarations.
-
-abstract class UnaryNum {
-  num foo(num x);
-}
-
-// Overrides must still be valid, wrt. signatures and types.
-
-mixin M3 on UnaryNum {
-  // M3.foo is a valid override of UnaryNum.foo
-  num foo(num x) => super.foo(x) * 2;
-}
-
-// Invalid signature override (overriding optional parameter with required).
-class C3 implements UnaryNum {
-  // C3.foo is a valid override of UnaryNum.foo
-  num foo([num x]) => x ?? 17;
-}
-// M3.foo is not a valid override for C3.foo.
-class A3 extends C3 //
-    with M3 //# 06: compile-time error
-{}
-
-// Invalid type override (overriding `int` return with `num` return).
-class C4 implements UnaryNum {
-  // C4.foo is a valid override of UnaryNum.foo
-  int foo(num x) => x.toInt();
-}
-// M3.foo is not a valid override for C4.foo.
-class A4 extends C4 //
-    with M3 //# 07: compile-time error
-{}
-
-// It's not required to have an implementation of members which are not super-
-// invoked, if the application class is abstract.
-abstract class C5 {
-  num foo(num x);
-  num bar(num x);
-}
-mixin M5 on C5 {
-  num baz(num x) => super.foo(x);
-}
-abstract class C5Foo implements C5 {
-  num foo(num x) => x;
-}
-abstract class C5Bar implements C5 {
-  num bar(num x) => x;
-}
-
-// Valid abstract class, super-invocation of foo hits implementation,
-// even if bar is still abstract.
-abstract class A5Foo = C5Foo with M5;
-// Invalid since super-invocation of foo does not hit concrete implementation.
-abstract class _ = C5Bar with M5;  //# 08: compile-time error
-
-class A5FooConcrete = A5Foo with C5Bar;
-
-main() {
-  Expect.equals(42, A5FooConcrete().baz(42));
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_invalid_superinvocation_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_invalid_superinvocation_test.dart
deleted file mode 100644
index 8926165a56b..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_invalid_superinvocation_test.dart
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test various invalid super-invocations for mixin declarations.
-
-abstract class UnaryInt {
-  num foo(int x);
-}
-
-abstract class UnaryNum {
-  num foo(num x);
-}
-
-abstract class UnaryOptionalNum {
-  num foo([num x]);
-}
-
-// Mixins may contain super-invocations.
-// The super-invocation must be valid against the combined super-interfaces
-// (i.e., valid against the most specific of them for that method).
-
-mixin M1 on UnaryNum {
-  void bar() {
-    super.foo(); //# 01: compile-time error
-    super.foo(1, 2); //# 02: compile-time error
-    super.foo("not num"); //# 03: compile-time error
-    super.bar; //# 04: compile-time error
-    super + 2; //# 05: compile-time error
-  }
-}
-
-mixin M2 on UnaryNum, UnaryInt {
-  void bar() {
-    super.foo(4.2); // Allows most specific type.
-    super.foo(1, 2); //# 06: compile-time error
-    super.foo("not num"); //# 07: compile-time error
-  }
-}
-
-mixin M3 on UnaryNum, UnaryOptionalNum {
-  void bar() {
-    super.foo(4.2);
-    super.foo();     //# 10: ok
-    super.foo(1, 2); //# 08: compile-time error
-    super.foo("not num"); //# 09: compile-time error
-  }
-}
-
-class C1 implements UnaryNum, UnaryInt, UnaryOptionalNum {
-  num foo([num x]) => x ?? 37.0;
-}
-
-class A1 = C1 with M1;
-class A2 = C1 with M2;
-class A3 = C1 with M3;
-main() {
-  A1().bar();
-  A2().bar();
-  A3().bar();
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_invalid_syntax_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_invalid_syntax_test.dart
deleted file mode 100644
index eb14237c581..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_invalid_syntax_test.dart
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test various invalid syntax combinations.
-
-// You cannot prefix "mixin" with anything.
-abstract //# 01: compile-time error
-static //# 02: compile-time error
-const //# 03: compile-time error
-mixin M0 {}
-
-// Cannot use "extends".
-mixin M1 //
-  extends A //# 04: compile-time error
-{}
-
-// On-clause must be before implements clause.
-mixin M2
-  implements B //# 05: compile-time error
-  on A
-{}
-
-// Cannot use "on" on class declarations.
-class C0 //
-  on A //# 06: compile-time error
-{}
-
-// Type parameters must not be empty.
-mixin M3 //
-  <> //# 07: compile-time error
-{}
-
-// Super-class restrictions and implements must be well-formed.
-mixin M4 on List
-  <UndeclaredType> //# 08: compile-time error
-{}
-mixin M5 implements List
-  <UndeclaredType> //# 09: compile-time error
-{}
-
-mixin M6 {
-  // Mixins cannot have constructors (or members with same name as mixin).
-  factory M6() {} //# 10: compile-time error
-  M6() {} //# 11: compile-time error
-  M6.foo(); //# 12: compile-time error
-  get M6 => 42; //# 13: compile-time error
-}
-
-// Cannot declare local mixins.
-class C {
-  static mixin M {}; //# 14: compile-time error
-  mixin M {} //# 15: compile-time error
-}
-
-// Just to have some types.
-class A {}
-class B {}
-
-main() {
-  new C();
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_invalid_type_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_invalid_type_test.dart
deleted file mode 100644
index 219555a3a0e..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_invalid_type_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test various invalid type-declaration combinations.
-
-// Types must be class types.
-mixin M on void {} //# 01: compile-time error
-mixin M on double {} //# 02: compile-time error
-mixin M on FutureOr<int> {} //# 03: compile-time error
-mixin M on FunType {} //# 04: compile-time error
-
-mixin M implements void {} //# 05: compile-time error
-mixin M implements double {} //# 06: compile-time error
-mixin M implements FutureOr<int> {} //# 07: compile-time error
-mixin M implements FunType {} //# 08: compile-time error
-
-// Types must be extensible.
-mixin M on bool {} //# 09: compile-time error
-mixin M on num {} //# 10: compile-time error
-mixin M on int {} //# 11: compile-time error
-mixin M on double {} //# 12: compile-time error
-mixin M on Null {} //# 13: compile-time error
-mixin M on String {} //# 14: compile-time error
-mixin M implements bool {} //# 15: compile-time error
-mixin M implements num {} //# 16: compile-time error
-mixin M implements int {} //# 17: compile-time error
-mixin M implements double {} //# 18: compile-time error
-mixin M implements Null {} //# 19: compile-time error
-mixin M implements String {} //# 20: compile-time error
-
-// Mixin type cannot depend on itself
-mixin M on M {} //# 21: compile-time error
-mixin M implements M {} //# 22: compile-time error
-
-// Types must exist and be valid
-mixin M on Undeclared {} //# 23: compile-time error
-mixin M on A<int> {} //# 24: compile-time error
-mixin M implements Undeclared {} //# 25: compile-time error
-mixin M implements A<int> {} //# 26: compile-time error
-
-main() {}
-
-// Just to have some types.
-class A {}
-class B {}
-typedef FuntType = int Function(int);
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_invalid_usage_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_invalid_usage_test.dart
deleted file mode 100644
index cc41d723608..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_invalid_usage_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-mixin Mixin // cannot `extend` anything.
-  extends M //# 01: compile-time error
-  extends Object //# 02: compile-time error
-{}
-
-// You cannot extend a mixin.
-class Class // cannot extend a mixin
-  extends Mixin //# 03: compile-time error
-{}
-
-void main() {
-  // Cannot instantiate a mixin.
-  new Mixin();  //# 04: compile-time error
-  new Class();
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_nsm_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_nsm_test.dart
deleted file mode 100644
index c65688a9503..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_nsm_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class Bar {
-  String bar();
-}
-
-abstract class Foo {
-  String foo();
-}
-
-mixin M implements Bar {
-  dynamic noSuchMethod(i) => "M:${i.memberName == #foo ? "foo" : "bar"}";
-}
-
-abstract class C {
-  dynamic noSuchMethod(i) => "C:${i.memberName == #foo ? "foo" : "bar"}";
-}
-
-abstract class D {
-  String foo() => "D:foo";
-  String bar() => "D:bar";
-}
-
-class A1 extends Foo with M {}
-class A2 extends C with M implements Foo {}
-class A3 extends D with M implements Foo {}
-
-main() {
-  Expect.equals("M:foo", A1().foo());
-  Expect.equals("M:bar", A1().bar());
-  Expect.equals("M:foo", A2().foo());
-  Expect.equals("M:bar", A2().bar());
-  Expect.equals("D:foo", A3().foo());
-  Expect.equals("D:bar", A3().bar());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_on_keyword_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_on_keyword_test.dart
deleted file mode 100644
index 6d22a067c21..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_on_keyword_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// The `on` word is not a reserved word or built-in identifier.
-// It's a purely contextual keyword.
-// A type can have the name `on`, and even a mixin.
-
-class A {}
-
-mixin on on A {}
-
-mixin M on on {}
-
-mixin M2 implements on {}
-
-class B = A with on;
-class C = B with M;
-class D = Object with M2;
-
-main() {
-  Expect.type<on>(B());
-  Expect.type<on>(C());
-  Expect.type<on>(D());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_static_scope_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_static_scope_test.dart
deleted file mode 100644
index a5bfdb8254b..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_static_scope_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// A mixin declaration introduces a static scope.
-// Instance members keep seeing this scope when mixed in.
-
-abstract class UnaryNum {
-  num foo(num x);
-}
-
-mixin M1 on UnaryNum {
-  static int counter = 0;
-  static int next() => ++counter;
-  int count() => foo(next());
-}
-
-class C1 implements UnaryNum {
-  static int counter = 87;
-  static int next() => 42;
-  num foo(num x) => x * 10;
-}
-
-class A1 = C1 with M1;
-
-main() {
-  Expect.equals(0, M1.counter);
-  Expect.equals(1, M1.next());
-  Expect.equals(2, M1.next());
-  var a = A1();
-  Expect.equals(30, a.count());
-  Expect.equals(40, a.count());
-  Expect.equals(5, M1.next());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_subtype_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_subtype_test.dart
deleted file mode 100644
index 94ebca65f0b..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_subtype_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// A mixin declaration introduces a type.
-
-// A mixin with multiple super-types and implemented types.
-class A {}
-class B {}
-class I {}
-class J {}
-
-mixin M on A, B implements I, J {}
-
-class C implements A, B {}
-
-class D = C with M;
-
-// Same, with generics.
-class GA<T> {}
-class GB<T> {}
-class GI<T> {}
-class GJ<T> {}
-
-mixin GM<T> on GA<T>, GB<List<T>> implements GI<Iterable<T>>, GJ<Set<T>> {}
-
-class GC<T> implements GA<T>, GB<List<T>> {}
-
-class GD<T> = GC<T> with GM<T>;
-
-main() {
-  Expect.subtype<M, A>();
-  Expect.subtype<M, B>();
-  Expect.subtype<M, I>();
-  Expect.subtype<M, J>();
-  Expect.subtype<D, M>();
-  Expect.subtype<D, C>();
-  Expect.notSubtype<M, C>();
-  Expect.notSubtype<C, M>();
-
-  Expect.subtype<GM<int>, GA<int>>();
-  Expect.subtype<GM<int>, GB<List<int>>>();
-  Expect.subtype<GM<int>, GI<Iterable<int>>>();
-  Expect.subtype<GM<int>, GJ<Set<int>>>();
-  Expect.subtype<GD<int>, GM<int>>();
-  Expect.subtype<GD<int>, GC<int>>();
-  Expect.notSubtype<GM<int>, GC<int>>();
-  Expect.notSubtype<GC<int>, GM<int>>();
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_superinvocation_application_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_superinvocation_application_test.dart
deleted file mode 100644
index b4665a06dab..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_superinvocation_application_test.dart
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test various invalid mixin applications due to insufficient super-invoked
-// methods.
-
-abstract class UnaryNum {
-  num foo(num x);
-}
-
-abstract class UnaryOptionalNum {
-  num foo([num x]);
-}
-
-// When a mixin is applied, the super-invoked methods must have
-// a concrete implementation in the superclass which satisfies
-// the signature in the super-interfaces.
-
-mixin M1 on UnaryNum {
-  num bar() {
-    return super.foo(42.0);
-  }
-}
-
-mixin M11 on UnaryNum {
-  num bar() {
-    return 0.0;
-  }
-  num foo(num x) {
-    return super.foo(42.0);
-  }
-}
-
-// The super-invoked method must be non-abstract.
-class A1 extends UnaryNum //
-    with M1 //# 04: compile-time error
-    with M11 //# 05: compile-time error
-    with M1, M11 //# 06: compile-time error
-    with M11, M1 //# 07: compile-time error
-{
-  // M1.bar does super.foo and UnaryNum has no implementation.
-  num foo(num x) => x;
-}
-
-// The super-invoked method must satisfy the most specific signature
-// among super-interfaces of the mixin.
-class C1 {
-  num foo(num x) => x;
-}
-
-abstract class C2 extends C1 implements UnaryOptionalNum {
-  num foo([num x]);
-}
-
-mixin M2 on UnaryOptionalNum {
-  num bar() {
-    // Allowed, super.foo has signature num Function([num]).
-    return super.foo(42.0);
-  }
-}
-
-class A2 extends C2 //
-    with M2 //# 08: compile-time error
-{
-  // M2.bar does a super.foo, so C2.foo must satisfy the super-interface of M2.
-  // It doesn't, even if the super-call would succeed against C1.foo.
-  num foo([num x]) => x ?? 0;
-}
-
-main() {
-  A1().bar(); //# 04: continued
-  A1().bar(); //# 05: continued
-  A1().bar(); //# 06: continued
-  A1().bar(); //# 07: continued
-  A2().bar(); //# 08: continued
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_supertype_compatible_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_supertype_compatible_test.dart
deleted file mode 100644
index 6aa894f9323..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_supertype_compatible_test.dart
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test various invalid super-constraints for mixin declarations.
-
-abstract class BinaryNumInt {
-  num foo(num x, int y);
-}
-
-abstract class BinaryIntNum {
-  num foo(int x, num y);
-}
-
-abstract class GetterNumNum {
-  num Function(num) get foo;
-}
-
-abstract class GetterIntInt {
-  int Function(int) get foo;
-}
-
-abstract class UnaryInt {
-  num foo(int x);
-}
-
-abstract class UnaryNum {
-  num foo(num x);
-}
-
-abstract class UnaryString {
-  num foo(String x);
-}
-
-// The super-interfaces must be *compatible*.
-// Any member declared by more than one super-interface must have at
-// least one most-specific signature among the super-interfaces.
-
-// Incompatible member kinds, one is a getter, the other a method.
-mixin _ on UnaryNum, GetterNumNum {} //# 01: compile-time error
-
-// Incompatible signature structure, unary vs binary.
-mixin _ on UnaryNum, BinaryNumInt {} //# 02: compile-time error
-
-// Incompatible method parameter type, neither is more specific.
-mixin _ on UnaryNum, UnaryString {} //# 03: compile-time error
-
-// Compatible types for each parameter, but still no most specific signature.
-mixin _ on BinaryNumInt, BinaryIntNum {} //# 04: compile-time error
-
-// Incompatible return type for getter.
-mixin _ on GetterNumNum, GetterIntInt {} //# 05: compile-time error
-
-
-// Mixin is valid when one signature is more specific.
-mixin M1 on UnaryNum, UnaryInt {
-  // May call the method in a super-invocation, at the most specific type.
-  num bar() {
-    return super.foo(42.0);
-  }
-}
-
-class C1 implements UnaryNum, UnaryInt {
-  num foo(num x) => x;
-}
-
-class A1 = C1 with M1;
-
-main() {
-  Expect.equals(42.0, A1().bar());
-}
diff --git a/tests/language_2/mixin_declaration/mixin_declaration_syntax_test.dart b/tests/language_2/mixin_declaration/mixin_declaration_syntax_test.dart
deleted file mode 100644
index 41ce938ba9f..00000000000
--- a/tests/language_2/mixin_declaration/mixin_declaration_syntax_test.dart
+++ /dev/null
@@ -1,422 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test various combinations of valid mixin declarations.
-
-// Class unrelated to everything else here, just Object with a toString.
-class O {
-  String toString() => "O";
-}
-
-abstract class A {
-  String toString() => "A";
-  String methodA() => "A:${this}.A";
-}
-
-class B implements A {
-  String toString() => "B";
-  String methodA() => "B:${this}.A";
-  String methodB() => "B:${this}.B";
-}
-
-class C extends A {
-  String toString() => "C";
-  String methodA() => "C:${this}.A->${super.methodA()}";
-  String methodC() => "C:${this}.C";
-}
-
-class AIJ implements A, I, J {
-  String toString() => "AIJ";
-  String methodA() => "AIJ:${this}.A";
-  String methodI() => "AIJ:${this}.I";
-  String methodJ() => "AIJ:${this}.J";
-}
-
-class BC extends C implements B {
-  String toString() => "BC";
-  String methodA() => "BC:${this}.A->${super.methodA()}";
-  String methodB() => "BC:${this}.B";
-  String methodC() => "BC:${this}.C->${super.methodC()}";
-}
-
-// Interfaces.
-abstract class I {
-  String methodI();
-}
-abstract class J {
-  String methodJ();
-}
-
-// Simple mixin with no super-invocations, no super restrictions
-// and no interfaces implemented.
-mixin M {
-  String toString() => "?&M";
-  String methodM() => "M:${this}.M";
-}
-
-
-// Mixin which uses the implicit "on Object" to do a super-invocation.
-mixin MO {
-  String toString() => "${super.toString()}&MO";
-  String methodMO() => "MO:${this}.MO";
-}
-
-
-// Mixin with "implements" clause.
-mixin MOiIJ implements I, J {
-  String toString() => "${super.toString()}&MOiIJ";
-  String methodMOiIJ() => "MOiIJ:${this}.MOiIJ";
-  String methodI() => "MOiIJ:${this}.I";
-  String methodJ() => "MOiIJ:${this}.J";
-}
-
-
-// Mixin with single non-Object super-constraint.
-mixin MA on A {
-  String toString() => "${super.toString()}&MA";
-  String methodMA() => "MA:${this}.MA";
-  String methodA() => "MA:${this}.A->${super.methodA()}";
-}
-
-
-// Mixin with super-restriction implementing other interfaces.
-mixin MAiBC on A implements B, C {
-  String toString() => "${super.toString()}&MAiBC";
-  String methodMAiBC() => "MAiBC:${this}.MAiBC";
-  String methodA() => "MAiBC:${this}.A->${super.methodA()}";
-  String methodB() => "MAiBC:${this}.B";
-  String methodC() => "MAiBC:${this}.C";
-}
-
-// Mixin with "implements" clause.
-mixin MBiIJ on B implements I, J {
-  String toString() => "${super.toString()}&MBiIJ";
-  String methodMOiIJ() => "MBiIJ:${this}.MBiIJ";
-  String methodI() => "MBiIJ:${this}.I";
-  String methodJ() => "MBiIJ:${this}.J";
-}
-
-
-// Mixin on more than one class.
-mixin MBC on B, C {
-  String toString() => "${super.toString()}&MBC";
-  String methodMBC() => "MBC:${this}.MBC";
-  String methodA() => "MBC:${this}.A->${super.methodA()}";
-  String methodB() => "MBC:${this}.B->${super.methodB()}";
-  String methodC() => "MBC:${this}.C->${super.methodC()}";
-}
-
-
-// One with everything.
-mixin MBCiIJ on B, C implements I, J {
-  String toString() => "${super.toString()}&MBCiIJ";
-  String methodMBCiIJ() => "MBCiIJ:${this}.MBCiIJ";
-  String methodA() => "MBCiIJ:${this}.A->${super.methodA()}";
-  String methodB() => "MBCiIJ:${this}.B->${super.methodB()}";
-  String methodC() => "MBCiIJ:${this}.C->${super.methodC()}";
-  String methodI() => "MBCiIJ:${this}.I";
-  String methodJ() => "MBCiIJ:${this}.J";
-}
-
-
-// Abstract mixin, doesn't implement its interface.
-mixin MiIJ implements I, J {
-  String toString() => "${super.toString()}&MiIJ";
-}
-
-
-// Applications of the mixins.
-
-class COaM = O with M;
-
-class COaM_2 extends O with M {}
-
-class CBaM = B with M;
-
-class CBaM_2 extends B with M {}
-
-class COaMO = O with MO;
-
-class COaMO_2 extends O with MO {}
-
-class CBaMO = B with MO;
-
-class CBaMO_2 extends B with MO {}
-
-class COaMOiIJ = O with MOiIJ;
-
-class COaMOiIJ_2 extends O with MOiIJ {}
-
-class CBaMBiIJ = B with MBiIJ;
-
-class CBaMBiIJ_2 extends B with MBiIJ {}
-
-class CAaMA = A with MA;
-
-class CAaMA_2 extends A with MA {}
-
-class CBaMA = B with MA;
-
-class CBaMA_2 extends B with MA {}
-
-class CAaMAiBC = A with MAiBC;
-
-class CAaMAiBC_2 extends A with MAiBC {}
-
-class CBaMAiBC = B with MAiBC;
-
-class CBaMAiBC_2 extends B with MAiBC {}
-
-class CBCaMBC = BC with MBC;
-
-class CBCaMBC_2 extends BC with MBC {}
-
-class CAaMAiBCaMBC = CAaMAiBC with MBC;
-
-class CAaMAiBCaMBC_2 extends CAaMAiBC with MBC {}
-
-class CBCaMBCiIJ = BC with MBCiIJ;
-
-class CBCaMBCiIJ_2 extends BC with MBCiIJ {}
-
-class CAaMAiBCaMBCiIJ = CAaMAiBC with MBCiIJ;
-
-class CAaMAiBCaMBCiIJ_2 extends CAaMAiBC with MBCiIJ {}
-
-// Abstract mixin application does not implement I and J.
-abstract class OaMiIJ = O with MiIJ;
-
-// Concrete subclass of abstract mixin application
-class COaMiIJ extends OaMiIJ {
-  String toString() => "${super.toString()}:COaMiIJ";
-  String methodI() => "COaMiIJ:${this}.I";
-  String methodJ() => "COaMiIJ:${this}.J";
-}
-
-// Abstract class with mixin application and does not implement I and J.
-abstract class OaMiIJ_2 extends O with MiIJ {}
-
-// Concrete subclass of abstract mixin application
-class COaMiIJ_2 extends OaMiIJ_2 {
-  String toString() => "${super.toString()}:COaMiIJ";
-  String methodI() => "COaMiIJ:${this}.I";
-  String methodJ() => "COaMiIJ:${this}.J";
-}
-
-// Test of `class C with M` syntax.
-class CwithM with M {}
-class CeOwithM extends Object with M {}
-
-// Test that the mixin applications behave as expected.
-void main() {
-  {
-    for (dynamic o in [COaM(), COaM_2()]) {
-      Expect.type<O>(o);
-      Expect.type<M>(o);
-      Expect.equals("?&M", "$o");
-      Expect.equals("M:$o.M", o.methodM());
-    }
-  }
-
-  {
-    for (dynamic o in [CBaM(), CBaM_2()]) {
-      Expect.type<B>(o);
-      Expect.type<M>(o);
-      Expect.equals("?&M", "$o");
-      Expect.equals("B:$o.B", o.methodB());
-      Expect.equals("M:$o.M", (o as M).methodM());
-    }
-  }
-
-  {
-    for (dynamic o in [COaMO(), COaMO_2()]) {
-      Expect.type<O>(o);
-      Expect.type<MO>(o);
-      Expect.equals("O&MO", "$o");
-      Expect.equals("MO:$o.MO", o.methodMO());
-    }
-  }
-
-  {
-    for (dynamic o in [CBaMO(), CBaMO_2()]) {
-      Expect.type<B>(o);
-      Expect.type<MO>(o);
-      Expect.equals("B&MO", "$o");
-      Expect.equals("MO:$o.MO", (o as MO).methodMO());
-      Expect.equals("B:$o.B", o.methodB());
-    }
-  }
-
-  {
-    for (dynamic o in [COaMOiIJ(), COaMOiIJ_2()]) {
-      Expect.type<O>(o);
-      Expect.type<I>(o);
-      Expect.type<J>(o);
-      Expect.type<MOiIJ>(o);
-      Expect.equals("O&MOiIJ", "$o");
-      Expect.equals("MOiIJ:$o.MOiIJ", o.methodMOiIJ());
-      Expect.equals("MOiIJ:$o.I", o.methodI());
-      Expect.equals("MOiIJ:$o.J", o.methodJ());
-    }
-  }
-
-  {
-    for (dynamic o in [CBaMBiIJ(), CBaMBiIJ_2()]) {
-      Expect.type<B>(o);
-      Expect.type<I>(o);
-      Expect.type<J>(o);
-      Expect.type<MBiIJ>(o);
-      Expect.equals("B&MBiIJ", "$o");
-      Expect.equals("MBiIJ:$o.MBiIJ", o.methodMOiIJ());
-      Expect.equals("B:$o.B", o.methodB());
-      Expect.equals("MBiIJ:$o.I", o.methodI());
-      Expect.equals("MBiIJ:$o.J", o.methodJ());
-    }
-  }
-
-  {
-    for (dynamic o in [CAaMA(), CAaMA_2()]) {
-      Expect.type<A>(o);
-      Expect.type<MA>(o);
-      Expect.equals("A&MA", "$o");
-      Expect.equals("MA:$o.MA", o.methodMA());
-      Expect.equals("MA:$o.A->A:$o.A", o.methodA());
-    }
-  }
-
-  {
-    for (dynamic o in [CBaMA(), CBaMA_2()]) {
-      Expect.type<B>(o);
-      Expect.type<MA>(o);
-      Expect.equals("B&MA", "$o");
-      Expect.equals("MA:$o.MA", (o as MA).methodMA());
-      Expect.equals("MA:$o.A->B:$o.A", (o as MA).methodA());
-      Expect.equals("B:$o.B", o.methodB());
-    }
-  }
-
-  {
-    for (dynamic o in [CAaMAiBC(), CAaMAiBC_2()]) {
-      Expect.type<A>(o);
-      Expect.type<B>(o);
-      Expect.type<C>(o);
-      Expect.type<MAiBC>(o);
-      Expect.equals("A&MAiBC", "$o");
-      Expect.equals("MAiBC:$o.MAiBC", o.methodMAiBC());
-      Expect.equals("MAiBC:$o.A->A:$o.A", o.methodA());
-      Expect.equals("MAiBC:$o.B", o.methodB());
-      Expect.equals("MAiBC:$o.C", o.methodC());
-    }
-  }
-
-  {
-    for (dynamic o in [CBaMAiBC(), CBaMAiBC_2()]) {
-      Expect.type<A>(o);
-      Expect.type<B>(o);
-      Expect.type<C>(o);
-      Expect.type<MAiBC>(o);
-      Expect.equals("B&MAiBC", "$o");
-      Expect.equals("MAiBC:$o.MAiBC", o.methodMAiBC());
-      Expect.equals("MAiBC:$o.A->B:$o.A", o.methodA());
-      Expect.equals("MAiBC:$o.B", o.methodB());
-      Expect.equals("MAiBC:$o.C", o.methodC());
-    }
-  }
-
-  {
-    for (dynamic o in [CBCaMBC(), CBCaMBC_2()]) {
-      Expect.type<BC>(o);
-      Expect.type<MBC>(o);
-      Expect.equals("BC&MBC", "$o");
-      Expect.equals("MBC:$o.MBC", o.methodMBC());
-      Expect.equals("MBC:$o.A->BC:$o.A->C:$o.A->A:$o.A", o.methodA());
-      Expect.equals("MBC:$o.B->BC:$o.B", o.methodB());
-      Expect.equals("MBC:$o.C->BC:$o.C->C:$o.C", o.methodC());
-    }
-  }
-
-  {
-    // Mixin on top of mixin application.
-    for (dynamic o in [CAaMAiBCaMBC(), CAaMAiBCaMBC_2()]) {
-      Expect.type<CAaMAiBC>(o);
-      Expect.type<MBC>(o);
-      Expect.equals("A&MAiBC&MBC", "$o");
-      Expect.equals("MBC:$o.MBC", (o as MBC).methodMBC());
-      Expect.equals("MAiBC:$o.MAiBC", o.methodMAiBC());
-      Expect.equals("MBC:$o.A->MAiBC:$o.A->A:$o.A", o.methodA());
-      Expect.equals("MBC:$o.B->MAiBC:$o.B", o.methodB());
-      Expect.equals("MBC:$o.C->MAiBC:$o.C", o.methodC());
-    }
-  }
-
-  {
-    for (dynamic o in [CBCaMBCiIJ(), CBCaMBCiIJ_2()]) {
-      Expect.type<BC>(o);
-      Expect.type<MBCiIJ>(o);
-      Expect.type<I>(o);
-      Expect.type<J>(o);
-      Expect.equals("BC&MBCiIJ", "$o");
-      Expect.equals("MBCiIJ:$o.MBCiIJ", o.methodMBCiIJ());
-      Expect.equals("MBCiIJ:$o.A->BC:$o.A->C:$o.A->A:$o.A", o.methodA());
-      Expect.equals("MBCiIJ:$o.B->BC:$o.B", o.methodB());
-      Expect.equals("MBCiIJ:$o.C->BC:$o.C->C:$o.C", o.methodC());
-      Expect.equals("MBCiIJ:$o.I", o.methodI());
-      Expect.equals("MBCiIJ:$o.J", o.methodJ());
-    }
-  }
-
-  {
-    // Mixin on top of mixin application.
-    for (dynamic o in [CAaMAiBCaMBCiIJ(), CAaMAiBCaMBCiIJ_2()]) {
-      Expect.type<CAaMAiBC>(o);
-      Expect.type<MBCiIJ>(o);
-      Expect.type<I>(o);
-      Expect.type<J>(o);
-      Expect.equals("A&MAiBC&MBCiIJ", "$o");
-      Expect.equals("MBCiIJ:$o.MBCiIJ", o.methodMBCiIJ());
-      Expect.equals("MAiBC:$o.MAiBC", (o as CAaMAiBC).methodMAiBC());
-      Expect.equals("MBCiIJ:$o.A->MAiBC:$o.A->A:$o.A", o.methodA());
-      Expect.equals("MBCiIJ:$o.B->MAiBC:$o.B", o.methodB());
-      Expect.equals("MBCiIJ:$o.C->MAiBC:$o.C", o.methodC());
-      Expect.equals("MBCiIJ:$o.I", o.methodI());
-      Expect.equals("MBCiIJ:$o.J", o.methodJ());
-    }
-  }
-
-  {
-    // Abstract mixin application, concrete subclass.
-    for (dynamic o in [COaMiIJ(), COaMiIJ_2()]) {
-      Expect.type<O>(o);
-      Expect.type<MiIJ>(o);
-      Expect.isTrue(o is OaMiIJ || o is OaMiIJ_2,
-          "`$o` should subtype OaMiIJ or OaMiIJ_2");
-      Expect.type<I>(o);
-      Expect.type<J>(o);
-      Expect.equals("O&MiIJ:COaMiIJ", "$o");
-      Expect.equals("COaMiIJ:$o.I", o.methodI());
-      Expect.equals("COaMiIJ:$o.J", o.methodJ());
-    }
-  }
-
-  Expect.equals(CeOwithM().toString(), CwithM().toString());
-
-  {
-    // Regression test for private fields.
-    var c = PrivateFieldClass();
-    Expect.equals(42, c._foo);
-  }
-}
-
-
-mixin PrivateFieldMixin {
-  int _foo = 40;
-}
-
-class PrivateFieldClass with PrivateFieldMixin {
-  int get _foo => super._foo + 2;
-}
diff --git a/tests/language_2/new/create_unresolved_type_runtime_test.dart b/tests/language_2/new/create_unresolved_type_runtime_test.dart
deleted file mode 100644
index d1f3a29115a..00000000000
--- a/tests/language_2/new/create_unresolved_type_runtime_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-main() {
-
-}
diff --git a/tests/language_2/new/create_unresolved_type_test.dart b/tests/language_2/new/create_unresolved_type_test.dart
deleted file mode 100644
index e5362cd7c32..00000000000
--- a/tests/language_2/new/create_unresolved_type_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  new F<int>();
-  //  ^
-  // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-  // [cfe] Couldn't find constructor 'F'.
-}
diff --git a/tests/language_2/new/expression1_test.dart b/tests/language_2/new/expression1_test.dart
deleted file mode 100644
index 1706b069c9f..00000000000
--- a/tests/language_2/new/expression1_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class C {}
-
-main() {
-  new C;
-  //  ^
-  // [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-  // [cfe] Expected '(' after this.
-}
diff --git a/tests/language_2/new/expression2_test.dart b/tests/language_2/new/expression2_test.dart
deleted file mode 100644
index 54a17fd3c5b..00000000000
--- a/tests/language_2/new/expression2_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class C {}
-
-main() {
-  new C(;
-  //   ^
-  // [cfe] Can't find ')' to match '('.
-  //   ^
-  // [cfe] Too many positional arguments: 0 allowed, but 1 found.
-  //    ^
-  // [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-  // [cfe] Expected an identifier, but got ';'.
-  //    ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-}
diff --git a/tests/language_2/new/expression3_test.dart b/tests/language_2/new/expression3_test.dart
deleted file mode 100644
index 06cd1bd17d2..00000000000
--- a/tests/language_2/new/expression3_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class C {}
-
-main() {
-  new C(...;
-  //   ^
-  // [cfe] Can't find ')' to match '('.
-  //   ^
-  // [cfe] Too many positional arguments: 0 allowed, but 1 found.
-  //    ^^^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] Expected an identifier, but got '...'.
-  //       ^
-  // [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-}
diff --git a/tests/language_2/new/expression_type_args_runtime_test.dart b/tests/language_2/new/expression_type_args_runtime_test.dart
deleted file mode 100644
index 0546fe870d0..00000000000
--- a/tests/language_2/new/expression_type_args_runtime_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Tests showing errors using type-arguments in new expressions:
-class A<T> {
-  // Can't instantiate type parameter (within static or instance method).
-
-
-
-  // OK when used within instance method, but not in static method.
-  m3() => new A<T>();
-
-}
-
-main() {
-  A a = new A();
-
-
-  a.m3();
-
-}
diff --git a/tests/language_2/new/expression_type_args_test.dart b/tests/language_2/new/expression_type_args_test.dart
deleted file mode 100644
index 7a82ace97fd..00000000000
--- a/tests/language_2/new/expression_type_args_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests showing errors using type-arguments in new expressions:
-class A<T> {
-  // Can't instantiate type parameter (within static or instance method).
-  m1() => new T();
-  //          ^
-  // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-  // [cfe] Couldn't find constructor 'T'.
-  static m2() => new T();
-  //                 ^
-  // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_PARAMETER_REFERENCED_BY_STATIC
-  // [cfe] Couldn't find constructor 'T'.
-
-  // OK when used within instance method, but not in static method.
-  m3() => new A<T>();
-  static m4() => new A<T>();
-  //                   ^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_PARAMETER_REFERENCED_BY_STATIC
-  // [cfe] Type variables can't be used in static members.
-}
-
-main() {
-  A a = new A();
-  a.m1();
-  A.m2();
-  a.m3();
-  A.m4();
-}
diff --git a/tests/language_2/new/prefix_runtime_test.dart b/tests/language_2/new/prefix_runtime_test.dart
deleted file mode 100644
index 5e63fdfbeb6..00000000000
--- a/tests/language_2/new/prefix_runtime_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'dart:core' as prefix;
-
-main() {
-
-}
diff --git a/tests/language_2/new/prefix_test.dart b/tests/language_2/new/prefix_test.dart
deleted file mode 100644
index 4e352d19e7c..00000000000
--- a/tests/language_2/new/prefix_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:core' as prefix;
-
-main() {
-  return new prefix();
-  //         ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-  // [cfe] Couldn't find constructor 'prefix'.
-}
diff --git a/tests/language_2/new/statement_test.dart b/tests/language_2/new/statement_test.dart
deleted file mode 100644
index 4d29c8678ea..00000000000
--- a/tests/language_2/new/statement_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test a new statement by itself.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  int a;
-  int b;
-  static int c;
-  static int d;
-
-  A(int x, int y)
-      : a = x,
-        b = y {
-    A.c = x;
-    A.d = y;
-  }
-}
-
-class NewStatementTest {
-  static testMain() {
-    new A(10, 20);
-    Expect.equals(10, A.c);
-    Expect.equals(20, A.d);
-  }
-}
-
-main() {
-  NewStatementTest.testMain();
-}
diff --git a/tests/language_2/no_such_method/dispatcher_test.dart b/tests/language_2/no_such_method/dispatcher_test.dart
deleted file mode 100644
index 7de405efa7b..00000000000
--- a/tests/language_2/no_such_method/dispatcher_test.dart
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that noSuchMethod dispatching and auto-closurization work correctly.
-
-class A {
-  noSuchMethod(m) {
-    return 123;
-  }
-
-  bar(x) => x + 1;
-}
-
-class B extends A {}
-
-class C {
-  C(this.pos, this.named, this.posArgs, this.namedArgs);
-  var pos, named;
-  noSuchMethod(m) {
-    Expect.equals(pos, m.positionalArguments.length);
-    Expect.equals(named, m.namedArguments.length);
-    for (var i = 0; i < posArgs.length; ++i) {
-      Expect.equals(posArgs[i], m.positionalArguments[i]);
-    }
-    for (var k in namedArgs.keys) {
-      Expect.equals(namedArgs[k], m.namedArguments[k]);
-    }
-    return 123;
-  }
-
-  List posArgs;
-  Map namedArgs;
-}
-
-main() {
-  var a = new A() as dynamic;
-  for (var i = 0; i < 20; ++i) Expect.equals(123, a.foo());
-  Expect.throws(() => (a.foo)());
-  Expect.equals("123", (a.foo).toString());
-
-  var b = new B() as dynamic;
-  for (var i = 0; i < 20; ++i) {
-    Expect.equals(2, b.bar(1));
-    Expect.equals(123, b.bar());
-    Expect.equals(2, b.bar(1));
-  }
-
-  for (var i = 0; i < 20; ++i) {
-    Expect.equals(123, b.bar(1, 2, 3));
-    Expect.equals(123, b.bar(1, 2, foo: 3));
-  }
-
-  // Test named and positional arguments.
-  var c = new C(1, 2, [100], {#n1: 101, #n2: 102}) as dynamic;
-  for (var i = 0; i < 20; ++i) {
-    Expect.equals(123, c.bar(100, n1: 101, n2: 102));
-    Expect.equals(123, c.bar(100, n2: 102, n1: 101));
-  }
-}
diff --git a/tests/language_2/no_such_method/empty_selector_test.dart b/tests/language_2/no_such_method/empty_selector_test.dart
deleted file mode 100644
index 3c4d015d071..00000000000
--- a/tests/language_2/no_such_method/empty_selector_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  noSuchMethod(_) => 'foo';
-  get hashCode => 42;
-}
-
-// Keep that list empty to make the inferrer infer an empty element
-// type.
-var a = [];
-var b = [new A(), new Object() as dynamic];
-
-main() {
-  // The following [hashCode] call will create a selector whose
-  // receiver type is empty. This used to make dart2js generate a
-  // [noSuchMethod] handler for [hashCode] on the Object class, which
-  // would override the actual implementation.
-  Expect.throwsRangeError(() => a[0].hashCode);
-
-  // This code calls the [hashCode] method put on the [Object] class,
-  // which used to be a [noSuchMethod] handler method.
-  Expect.isTrue(b[1].hashCode is int);
-
-  // Sanity checks.
-  Expect.equals(42, b[0].hashCode);
-  Expect.equals('foo', b[0].foo());
-
-  // Prevent optimizations on the [b] variable.
-  b.clear();
-}
diff --git a/tests/language_2/no_such_method/many_overridden_test.dart b/tests/language_2/no_such_method/many_overridden_test.dart
deleted file mode 100644
index ba10f50a55e..00000000000
--- a/tests/language_2/no_such_method/many_overridden_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10
-
-// @dart = 2.9
-
-library OverriddenNoSuchMethodTest.dart;
-
-import "package:expect/expect.dart";
-
-part "overridden.dart";
-
-class ManyOverriddenNoSuchMethodTest {
-  static testMain() {
-    for (int i = 0; i < 20; i++) {
-      OverriddenNoSuchMethod.testMain();
-    }
-  }
-}
-
-main() {
-  ManyOverriddenNoSuchMethodTest.testMain();
-}
diff --git a/tests/language_2/no_such_method/megamorphic_test.dart b/tests/language_2/no_such_method/megamorphic_test.dart
deleted file mode 100644
index 8bf3edb0d5f..00000000000
--- a/tests/language_2/no_such_method/megamorphic_test.dart
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test program for correct optimizations related to types fo allocated lists.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Classes to induce polymorphism of degree 10.
-class A0 {
-  test() => 0;
-}
-
-class A1 {
-  test() => 1;
-}
-
-class A2 {
-  test() => 2;
-}
-
-class A3 {
-  test() => 3;
-}
-
-class A4 {
-  test() => 4;
-}
-
-class A5 {
-  test() => 5;
-}
-
-class A6 {
-  test() => 6;
-}
-
-class A7 {
-  test() => 7;
-}
-
-class A8 {
-  test() => 8;
-}
-
-class A9 {
-  test() => 9;
-}
-
-// Class with no test method.
-class B {}
-
-test(obj) {
-  return obj.test();
-}
-
-main() {
-  // Trigger optimization of 'test' function.
-  List list = [
-    new A0(),
-    new A1(),
-    new A2(),
-    new A3(),
-    new A4(),
-    new A5(),
-    new A6(),
-    new A7(),
-    new A8(),
-    new A9()
-  ];
-  for (int i = 0; i < 20; i++) {
-    for (var obj in list) {
-      test(obj);
-    }
-  }
-  Expect.throwsNoSuchMethodError(() => test(new B()));
-}
diff --git a/tests/language_2/no_such_method/mock_test.dart b/tests/language_2/no_such_method/mock_test.dart
deleted file mode 100644
index 85d920f639f..00000000000
--- a/tests/language_2/no_such_method/mock_test.dart
+++ /dev/null
@@ -1,175 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program testing that NoSuchMethod is properly called.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Cat {
-  bool eatFood(String food) => true;
-  String scratch(String furniture) => 'purr';
-  String mood;
-}
-
-class MockCat implements Cat {
-  dynamic noSuchMethod(Invocation invocation) {
-    var arg = invocation.positionalArguments[0];
-    return arg is String && arg.isNotEmpty;
-  }
-}
-
-class MockCat2 extends MockCat {
-  // this apparently works.
-  noSuchMethod(_);
-}
-
-class MockCat3 extends MockCat2 implements Cat {
-  bool eatFood(String food, {double amount});
-  String scratch(String furniture, [String furniture2]);
-
-  dynamic noSuchMethod(Invocation invocation) {
-    if (invocation.memberName == #scratch) {
-      return invocation.positionalArguments.join(',');
-    }
-
-    return (invocation.positionalArguments[0] as String).isNotEmpty &&
-        invocation.namedArguments[#amount] > 0.5;
-  }
-}
-
-class MockWithGenerics {
-  List<Type> doStuff<T>(T t);
-
-  noSuchMethod(i) => (i as dynamic).typeArguments;
-}
-
-class MockWithGetterSetter {
-  get getter;
-  set setter(value);
-
-  Invocation invocation;
-  noSuchMethod(i) {
-    invocation = i;
-  }
-}
-
-class Callable {
-  int call() => 1;
-  int m() => 2;
-}
-
-class MockCallable implements Callable {
-  noSuchMethod(i) => i.memberName == #call ? 42 : 0;
-}
-
-void main() {
-  MockCat mock = new MockCat();
-  Expect.isTrue((mock as dynamic).eatFood("cat food"));
-  Expect.isFalse(mock.eatFood(""));
-  mock.mood = 'sleepy';
-  (mock as dynamic).mood = 'playful';
-  Expect.throwsTypeError(() {
-    (mock as dynamic).mood = 42;
-  });
-
-  // In strong mode this will be a runtime type error:
-  // bool is not a String. VM will fail with noSuchMethod +.
-  Expect.throws(() => mock.scratch("couch") + '');
-
-  var mock2 = new MockCat2();
-  Expect.isTrue(mock2.eatFood("cat food"));
-
-  var mock3 = new MockCat3();
-  Expect.isTrue(mock3.eatFood("cat food", amount: 0.9));
-  Expect.isFalse(mock3.eatFood("cat food", amount: 0.3));
-  Expect.equals("chair,null", mock3.scratch("chair"));
-  Expect.equals("chair,couch", mock3.scratch("chair", "couch"));
-  Expect.equals("chair,null", mock3.scratch("chair", null));
-  Expect.equals("chair,", mock3.scratch("chair", ""));
-
-  var g = new MockWithGenerics();
-  Expect.listEquals([int], g.doStuff(42));
-  Expect.listEquals([num], g.doStuff<num>(42));
-  Expect.listEquals([String], g.doStuff('hi'));
-
-  var s = new MockWithGetterSetter();
-  s.getter;
-  Expect.equals(0, s.invocation.positionalArguments.length);
-  Expect.isTrue(s.invocation.isGetter);
-  Expect.isFalse(s.invocation.isSetter);
-  Expect.isFalse(s.invocation.isMethod);
-  s.setter = 42;
-  Expect.equals(42, s.invocation.positionalArguments.single);
-  Expect.isFalse(s.invocation.isGetter);
-  Expect.isTrue(s.invocation.isSetter);
-  Expect.isFalse(s.invocation.isMethod);
-
-  testMockTearoffs();
-  testMockCallable();
-  testMockCallableTearoff();
-}
-
-testMockCallable() {
-  Callable call = new MockCallable();
-  Expect.equals(42, call());
-  Expect.equals(42, (call as dynamic)());
-  Expect.equals(0, call.m());
-  Expect.equals(0, (call as dynamic).m());
-}
-
-testMockCallableTearoff() {
-  var mock = new MockCallable();
-  Function f = mock;
-  Expect.equals(42, f());
-  Expect.equals(42, (f as dynamic)());
-  Expect.equals(f, mock.call);
-  Expect.equals(f.call, mock.call);
-  Expect.equals((f as dynamic).call, mock.call);
-  Expect.equals(f.call, (mock as dynamic).call);
-}
-
-typedef bool EatFoodType(String food);
-
-testMockTearoffs() {
-  var mock2 = new MockCat2();
-  var eat = mock2.eatFood;
-  var eat2 = (mock2 as dynamic).eatFood;
-
-  Expect.isTrue(eat is EatFoodType, 'eat is EatFoodType');
-  Expect.isTrue(eat2 is EatFoodType, 'eat2 is EatFoodType');
-  Expect.equals(eat, eat2, 'eat == eat2');
-  Expect.isTrue(eat.runtimeType == eat2.runtimeType,
-      'eat.runtimeType == eat2.runtimeType');
-
-  Expect.isTrue(eat("cat food"), 'eat("cat food")');
-  Expect.isFalse(eat(""), 'eat("")');
-  Expect.isTrue(eat2("cat food"), 'eat2("cat food")');
-  Expect.isFalse(eat2(""), 'eat2("")');
-
-  var g = new MockWithGenerics();
-  var doStuff = g.doStuff;
-  var doStuff2 = (g as dynamic).doStuff;
-
-  Expect.equals(doStuff, doStuff2, 'doStuff == doStuff2');
-  Expect.equals(doStuff.runtimeType, doStuff2.runtimeType,
-      'doStuff.runtimeType == doStuff2.runtimeType');
-
-  Expect.listEquals([int], doStuff(42));
-  Expect.listEquals([num], doStuff<num>(42));
-  Expect.listEquals([String], doStuff('hi'));
-
-  // no inference happens because `doStuff2` is dynamic.
-  Expect.listEquals([num], doStuff2<num>(42));
-  expectIsDynamicOrObject(List types) {
-    Expect.equals(1, types.length);
-    var t = types[0];
-    // TODO(jmesserly): allows either type because of
-    // https://github.com/dart-lang/sdk/issues/32483
-    Expect.isTrue(t == dynamic || t == Object, '$t == dynamic || $t == Object');
-  }
-
-  expectIsDynamicOrObject(doStuff2(42));
-  expectIsDynamicOrObject(doStuff2('hi'));
-}
diff --git a/tests/language_2/no_such_method/native_test.dart b/tests/language_2/no_such_method/native_test.dart
deleted file mode 100644
index 35ffccc3cf3..00000000000
--- a/tests/language_2/no_such_method/native_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program testing that NoSuchMethod is properly called.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-Invocation invocation;
-
-class C {
-  noSuchMethod(Invocation i) {
-    invocation = i;
-    return 42;
-  }
-}
-
-expectNSME(Object d) {
-  try {
-    d.noSuchMethod(invocation);
-  } on NoSuchMethodError catch (e) {
-    Expect.isTrue(e.toString().contains('foobar'));
-  }
-}
-
-main() {
-  dynamic c = new C() as dynamic;
-  Expect.equals(42, c.foobar(123));
-  Expect.equals(#foobar, invocation.memberName);
-  Expect.listEquals([123], invocation.positionalArguments);
-  expectNSME(null);
-  expectNSME(777);
-  expectNSME('hello');
-  expectNSME([]);
-  expectNSME(<String>['a', 'b', 'c']);
-}
diff --git a/tests/language_2/no_such_method/no_such_method2_test.dart b/tests/language_2/no_such_method/no_such_method2_test.dart
deleted file mode 100644
index 2528d632b00..00000000000
--- a/tests/language_2/no_such_method/no_such_method2_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Regression test for https://code.google.com/p/dart/issues/detail?id=7697.
-// dart2js used to optimize [noSuchMethod] based on the user-provided
-// argument, and forget that the runtime might call it with its own
-// [Invocation] implementation.
-
-class Hey {
-  foo() => noSuchMethod(new FakeInvocationMirror());
-  noSuchMethod(x) => x;
-}
-
-class You extends Hey {
-  // We used to think this method is always called with a
-  // FakeInvocationMirror instance, but it's also called with the
-  // internal mirror implementation.
-  noSuchMethod(x) => x.isGetter;
-}
-
-class FakeInvocationMirror extends Invocation {
-  final bool isGetter = false;
-  @override
-  bool get isMethod => false;
-
-  @override
-  bool get isSetter => false;
-
-  @override
-  Symbol get memberName => null;
-
-  @override
-  Map<Symbol, dynamic> get namedArguments => {};
-
-  @override
-  List get positionalArguments => [];
-}
-
-main() {
-  var x = new Hey();
-  Expect.isTrue(x.foo() is FakeInvocationMirror);
-  var y = [new You() as dynamic];
-  Expect.isTrue(y[0].bar);
-}
diff --git a/tests/language_2/no_such_method/no_such_method3_test.dart b/tests/language_2/no_such_method/no_such_method3_test.dart
deleted file mode 100644
index acc09517ec9..00000000000
--- a/tests/language_2/no_such_method/no_such_method3_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that a static type inferrer takes [noSuchMethod] into account.
-
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-import "package:expect/expect.dart";
-
-class A {
-  B foobarbaz() {
-    return new B();
-  }
-}
-
-class B {
-  noSuchMethod(im) {
-    return 42;
-  }
-}
-
-bar() {
-  var b;
-  for (int i = 0; i < 20; ++i)
-    if (i % 2 == 0)
-      b = new A();
-    else
-      b = new B();
-  return b;
-}
-
-void main() {
-  var x = bar();
-  var y = x.foobarbaz();
-  Expect.equals(42, y);
-  Expect.isFalse(y is B);
-}
diff --git a/tests/language_2/no_such_method/no_such_method4_test.dart b/tests/language_2/no_such_method/no_such_method4_test.dart
deleted file mode 100644
index e0c7722b906..00000000000
--- a/tests/language_2/no_such_method/no_such_method4_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class NoSuchMethodNegativeTest {
-  foo() {
-    return 1;
-  }
-}
-
-main() {
-  var obj = new NoSuchMethodNegativeTest() as dynamic;
-  Expect.throwsNoSuchMethodError(() {
-    obj.moo();
-  });
-}
diff --git a/tests/language_2/no_such_method/no_such_method_private_setter_lib.dart b/tests/language_2/no_such_method/no_such_method_private_setter_lib.dart
deleted file mode 100644
index ffb9f4966a8..00000000000
--- a/tests/language_2/no_such_method/no_such_method_private_setter_lib.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Bar {
-  int _x;
-}
-
-void baz(Bar bar) {
-  (bar as dynamic)._x = "Sixtyfour"; //# 01: runtime error
-}
diff --git a/tests/language_2/no_such_method/no_such_method_test.dart b/tests/language_2/no_such_method/no_such_method_test.dart
deleted file mode 100644
index 37e3b6ff025..00000000000
--- a/tests/language_2/no_such_method/no_such_method_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program testing that NoSuchMethod is properly called.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class NoSuchMethodTest {
-  foo({a: 10, b: 20}) {
-    return (10 * a) + b;
-  }
-
-  noSuchMethod(Invocation im) {
-    Expect.equals(#moo, im.memberName);
-    Expect.equals(0, im.positionalArguments.length);
-    Expect.equals(1, im.namedArguments.length);
-    return foo(b: im.namedArguments[const Symbol("b")]);
-  }
-}
-
-main() {
-  var obj = new NoSuchMethodTest() as dynamic;
-  Expect.equals(199, obj.moo(b: 99)); // obj.NoSuchMethod called here.
-}
diff --git a/tests/language_2/no_such_method/nsm4_test.dart b/tests/language_2/no_such_method/nsm4_test.dart
deleted file mode 100644
index c58455c7de2..00000000000
--- a/tests/language_2/no_such_method/nsm4_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for compile-time errors for member access on classes that inherit a
-// user defined noSuchMethod.
-
-import "package:expect/expect.dart";
-
-class Mock {
-  noSuchMethod(i) => 42;
-}
-
-abstract class Foo {
-  int foo();
-}
-
-class Valid extends Mock implements Foo {}
-
-main() {
-  Expect.equals(new Valid().foo(), 42);
-}
diff --git a/tests/language_2/no_such_method/nsm5_test.dart b/tests/language_2/no_such_method/nsm5_test.dart
deleted file mode 100644
index 79b485a8651..00000000000
--- a/tests/language_2/no_such_method/nsm5_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for compile-time errors for member access on classes that inherit a
-// user defined noSuchMethod, even if it is abstract.
-
-import 'package:expect/expect.dart';
-
-abstract class Mock {
-  noSuchMethod(i);
-}
-
-abstract class Foo {
-  int foo();
-}
-
-class WarnMe extends Mock implements Foo {}
-//    ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER
-// [cfe] The non-abstract class 'WarnMe' is missing implementations for these members:
-
-main() {}
diff --git a/tests/language_2/no_such_method/overridden.dart b/tests/language_2/no_such_method/overridden.dart
deleted file mode 100644
index baa817efd42..00000000000
--- a/tests/language_2/no_such_method/overridden.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program testing overridden messageNotUnderstood.
-
-// @dart = 2.9
-
-part of OverriddenNoSuchMethodTest.dart;
-
-class OverriddenNoSuchMethod {
-  OverriddenNoSuchMethod() {}
-
-  noSuchMethod(Invocation mirror) {
-    Expect.equals(#foo, mirror.memberName);
-    // 'foo' was called with two parameters (not counting receiver).
-    List args = mirror.positionalArguments;
-    Expect.equals(2, args.length);
-    Expect.equals(101, args[0]);
-    Expect.equals(202, args[1]);
-    return 5;
-  }
-
-  static testMain() {
-    dynamic obj = new OverriddenNoSuchMethod();
-    obj.foo(101, 202);
-  }
-}
diff --git a/tests/language_2/no_such_method/overridden_no_such_method_test.dart b/tests/language_2/no_such_method/overridden_no_such_method_test.dart
deleted file mode 100644
index 26c8a480a6e..00000000000
--- a/tests/language_2/no_such_method/overridden_no_such_method_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program testing overridden messageNotUnderstood.
-
-// @dart = 2.9
-
-library OverriddenNoSuchMethodTest.dart;
-
-import "package:expect/expect.dart";
-part "overridden.dart";
-
-main() {
-  OverriddenNoSuchMethod.testMain();
-}
diff --git a/tests/language_2/no_such_method/private_setter_test.dart b/tests/language_2/no_such_method/private_setter_test.dart
deleted file mode 100644
index e495a15a8d2..00000000000
--- a/tests/language_2/no_such_method/private_setter_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'no_such_method_private_setter_lib.dart';
-
-class Foo implements Bar {}
-
-main() {
-  baz(new Foo()); //# 01: runtime error
-}
diff --git a/tests/language_2/no_such_method/simple_type_arguments_test.dart b/tests/language_2/no_such_method/simple_type_arguments_test.dart
deleted file mode 100644
index 81a8a94f8e9..00000000000
--- a/tests/language_2/no_such_method/simple_type_arguments_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// dart2jsOptions=--disable-rti-optimization
-
-// @dart = 2.9
-
-// Dart test program testing that type arguments are captured by the Invocation
-// passed to noSuchMethod from a dynamic call.
-
-import "package:expect/expect.dart";
-
-class Mock {
-  noSuchMethod(i) => i.typeArguments;
-}
-
-void main() {
-  var g = new Mock();
-
-  Expect.listEquals(
-      [String, int], (g as dynamic).hurrah<String, int>(moose: 42, duck: 12));
-
-  // map has interceptor calling convention in dart2js.
-  Expect.listEquals([String, int], (g as dynamic).map<String, int>());
-}
diff --git a/tests/language_2/no_such_method/subtype_test.dart b/tests/language_2/no_such_method/subtype_test.dart
deleted file mode 100644
index bf408f651a7..00000000000
--- a/tests/language_2/no_such_method/subtype_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  foo() => 42;
-}
-
-class B implements A {
-  noSuchMethod(im) => 84;
-}
-
-main() {
-  var a = [new A(), new B()];
-  var b = a[1];
-  if (b is A) {
-    // `b.foo()` will create a typed selector whose receiver type is a
-    // subtype of `A`. Because not all subtypes of `A` implement
-    // `foo`, dart2js must generate a `noSuchMethod` stub for `foo` in
-    // the top Object class.
-    Expect.equals(84, b.foo());
-    return;
-  }
-  Expect.fail('Should not be here');
-}
diff --git a/tests/language_2/no_such_method/tearoff_fta_test.dart b/tests/language_2/no_such_method/tearoff_fta_test.dart
deleted file mode 100644
index eb6d6101003..00000000000
--- a/tests/language_2/no_such_method/tearoff_fta_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-void foo() {}
-
-main() {
-  final dynamic tearoff = foo;
-
-  Expect.throwsNoSuchMethodError(() {
-    tearoff<String>(3);
-  }, 'Providing type arguments to a non-generic tearoff should throw go NSM.');
-}
diff --git a/tests/language_2/nosuchmethod_forwarding/README.md b/tests/language_2/nosuchmethod_forwarding/README.md
deleted file mode 100644
index ed26b01c7e9..00000000000
--- a/tests/language_2/nosuchmethod_forwarding/README.md
+++ /dev/null
@@ -1,8 +0,0 @@
-# Feature tests for noSuchMethod forwarding
-
-This directory was created in order to hold tests pertaining to the
-Dart feature which causes forwarding methods to be generated
-implicitly for all method signatures in the interface of a class that
-declares a non-trivial `noSuchMethod`. For more details, please check
-the
-[feature specification](https://github.com/dart-lang/sdk/blob/main/docs/language/informal/nosuchmethod-forwarding.md).
diff --git a/tests/language_2/nosuchmethod_forwarding/abstract_override_with_different_type_test.dart b/tests/language_2/nosuchmethod_forwarding/abstract_override_with_different_type_test.dart
deleted file mode 100644
index 5de6e925e8b..00000000000
--- a/tests/language_2/nosuchmethod_forwarding/abstract_override_with_different_type_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This is a regression test for http://dartbug.com/40248.
-
-import "package:expect/expect.dart";
-
-class Base {
-  set push(int x);
-  set float(covariant int x);
-  noSuchMethod(i) => print("${runtimeType}: ${i.positionalArguments[0]}");
-}
-
-class Me extends Base {}
-
-class You extends Base {
-  set push(num x);
-  set float(num x);
-}
-
-main() {
-  List<Base> list = [Me(), You()];
-  for (Base baba in list) {
-    baba.push = 0;
-    baba.float = 1;
-    if (baba is You) {
-      baba.push = 2.3;
-      baba.float = 4.5;
-    }
-    try {
-      (baba as dynamic).push = 6.7;
-      Expect.isTrue(baba is You);
-    } on TypeError {
-      Expect.isTrue(baba is Me);
-    }
-    try {
-      (baba as dynamic).float = 8.9;
-      Expect.isTrue(baba is You);
-    } on TypeError {
-      Expect.isTrue(baba is Me);
-    }
-  }
-}
diff --git a/tests/language_2/nosuchmethod_forwarding/nosuchmethod_forwarding_arguments_test.dart b/tests/language_2/nosuchmethod_forwarding/nosuchmethod_forwarding_arguments_test.dart
deleted file mode 100644
index 37fa52fbc10..00000000000
--- a/tests/language_2/nosuchmethod_forwarding/nosuchmethod_forwarding_arguments_test.dart
+++ /dev/null
@@ -1,136 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing that `noSuchMethod` forwarding properly handles optional, named and
-// type parameters, and result type checking.
-
-// VMOptions=--lazy-dispatchers
-// VMOptions=--no-lazy-dispatchers
-
-import 'package:expect/expect.dart';
-
-class A {
-  dynamic noSuchMethod(Invocation invoke) {
-    if (invoke.memberName == #test0) {
-      Expect.equals(invoke.positionalArguments[0], 1);
-      Expect.equals(invoke.positionalArguments[1], 2);
-      return null;
-    } else if (invoke.memberName == #test1) {
-      Expect.isTrue(invoke.namedArguments.length == 1);
-      Expect.equals(null, invoke.namedArguments[#x]);
-      return null;
-    } else if (invoke.memberName == #test2) {
-      Expect.isTrue(invoke.namedArguments.length == 1);
-      Expect.equals("w/e", invoke.namedArguments[#x]);
-      return null;
-    } else if (invoke.memberName == #test3) {
-      Expect.equals(invoke.namedArguments[#x], "ok");
-      return null;
-    } else if (invoke.memberName == #test4) {
-      Expect.equals(invoke.positionalArguments[0], "ok");
-      return null;
-    } else if (invoke.memberName == #test5) {
-      Expect.equals(invoke.typeArguments[0].toString(), "int");
-      return null;
-    } else if (invoke.memberName == #test6) {
-      return 1;
-    } else if (invoke.memberName == #test7) {
-      return "hi";
-    } else if (invoke.memberName == #allTogetherNow) {
-      Expect.equals(invoke.typeArguments.length, 2);
-      Expect.equals(invoke.typeArguments[0].toString(), "num");
-      Expect.equals(invoke.typeArguments[1].toString(), "double");
-
-      Expect.equals(invoke.positionalArguments.length, 1);
-      Expect.equals(invoke.positionalArguments[0], 2.0);
-
-      Expect.equals(invoke.namedArguments.length, 1);
-      Expect.equals(invoke.namedArguments[#foo], const <num>[3, 4]);
-    } else if (invoke.memberName == #test8) {
-      Expect.equals(1, invoke.positionalArguments.length);
-      Expect.equals(null, invoke.positionalArguments[0]);
-    } else if (invoke.memberName == #test9) {
-      Expect.equals(invoke.typeArguments.length, 2);
-      Expect.equals(invoke.typeArguments[0].toString(), "num");
-      Expect.equals(invoke.typeArguments[1].toString(), "double");
-
-      Expect.equals(1, invoke.positionalArguments.length);
-      Expect.equals(4.2, invoke.positionalArguments[0]);
-
-      Expect.equals(1, invoke.namedArguments.length);
-      Expect.equals(3, invoke.namedArguments[#foo]);
-    }
-  }
-
-  void test0(int x, int y);
-  void test1({String x});
-  void test2({String x: "w/e"});
-  void test3({String x: "w/e"});
-  void test4([String x]);
-  void test5<T extends num>(T x);
-  String test6();
-
-  int get test7;
-  void set test7(int x);
-
-  void test8([String x]);
-  void test9<T, S extends T>(S x1, {T foo});
-
-  T allTogetherNow<T, S extends T>(S x1, {List<T> foo: const <Null>[]});
-}
-
-main() {
-  var a = new A();
-
-  a.test0(1, 2);
-  (a.test0 as dynamic)(1, 2);
-
-  a.test1();
-  (a.test1 as dynamic)();
-
-  a.test2();
-  (a.test2 as dynamic)();
-
-  a.test3(x: "ok");
-  (a.test3 as dynamic)(x: "ok");
-
-  a.test4("ok");
-  (a.test4 as dynamic)("ok");
-
-  a.test5<int>(1);
-  (a.test5 as dynamic)<int>(1);
-  Expect.throwsTypeError(() => (a.test5 as dynamic)<String>("foo"));
-  Expect.throwsTypeError(() => (a.test5 as dynamic)<int>(3.1));
-
-  Expect.throwsTypeError(() => a.test6());
-  Expect.throwsTypeError(() => (a.test6 as dynamic)());
-
-  Expect.throwsTypeError(() => a.test7);
-  Expect.throwsTypeError(() => (a as dynamic).test7 = "hi");
-
-  a.allTogetherNow<num, double>(2.0, foo: const <num>[3, 4]);
-  Expect.throwsTypeError(() =>
-      (a.allTogetherNow as dynamic)<int, double>(2.0, foo: const <num>[3, 4]));
-  Expect.throwsTypeError(() =>
-      (a.allTogetherNow as dynamic)<int, int>(2.0, foo: const <num>[3, 4]));
-  Expect.throwsTypeError(() => (a.allTogetherNow
-      as dynamic)<double, double>(2.0, foo: const <int>[3, 4]));
-
-  a.test8();
-
-  a.test9<num, double>(4.2, foo: 3);
-  Expect.throwsTypeError(() => (a.test9 as dynamic)<int, double>(3, foo: 3));
-  Expect.throwsTypeError(
-      () => (a.test9 as dynamic)<double, double>(3, foo: 3.2));
-  // Added to check that uses of positions from the ArgumentsDescriptor in the
-  // VM properly offsets named argument positions if there are also type
-  // arguments. allTogetherNow doesn't work for this because the runtime type of
-  // the positional argument cannot be the same as the type of the named
-  // argument without the positional argument failing to match its own type,
-  // and positional argument types are usually checked first.
-  Expect.throwsTypeError(
-      () => (a.test9 as dynamic)<int, double>(4.2, foo: 3.2));
-}
diff --git a/tests/language_2/nosuchmethod_forwarding/nosuchmethod_forwarding_partial_instantiation_test.dart b/tests/language_2/nosuchmethod_forwarding/nosuchmethod_forwarding_partial_instantiation_test.dart
deleted file mode 100644
index 25df5f6f0b5..00000000000
--- a/tests/language_2/nosuchmethod_forwarding/nosuchmethod_forwarding_partial_instantiation_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing that `noSuchMethod` forwarders can be partially instantiated, and
-// that their delayed type arguments are transparently passed to `noSuchMethod`.
-
-import 'package:expect/expect.dart';
-
-class C {
-  T test1<T>(T x);
-
-  dynamic noSuchMethod(Invocation invoke) {
-    Expect.equals(invoke.typeArguments.length, 1);
-    Expect.equals(invoke.typeArguments[0].toString(), 'int');
-    Expect.equals(invoke.positionalArguments[0], 1);
-    return null;
-  }
-}
-
-void main() {
-  var c = new C();
-  int Function(int) k1 = c.test1;
-  k1(1);
-}
diff --git a/tests/language_2/nosuchmethod_forwarding/nosuchmethod_forwarding_test.dart b/tests/language_2/nosuchmethod_forwarding/nosuchmethod_forwarding_test.dart
deleted file mode 100644
index 4d29890e80b..00000000000
--- a/tests/language_2/nosuchmethod_forwarding/nosuchmethod_forwarding_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing that `noSuchMethod` appears to use implicit forwarders (we don't
-// care how it's actually implemented, but it should look like that).
-
-import 'package:expect/expect.dart';
-
-// "Template" class: Something to emulate.
-class A {
-  int foo(String s) => s.length;
-}
-
-// Emulate `A`, but only dynamically.
-class B {
-  noSuchMethod(_) => 31;
-}
-
-// Emulate `A`, including its type.
-class C implements A {
-  noSuchMethod(_) => 41;
-}
-
-// Emulate `A` with its type, based on an inherited `noSuchMethod`.
-class D extends B implements A {}
-
-void test(A a, int expectedValue) {
-  // Regular superinterfaces can be supported by `noSuchMethod`.
-  Expect.equals(expectedValue, a.foo('Hello!')); //# 04: ok
-
-  // `noSuchMethod` triggers generation of forwarders, so a statically
-  // known instance method tear-off yields a `Function`, also when invoked
-  // dynamically.
-  Expect.isTrue(a.foo is Function); //# 05: ok
-  Expect.isTrue((a as dynamic).foo is Function); //# 06: ok
-
-  // For an unknown member name the invocation must be dynamic, and in that
-  // case it does not match a forwarder, but we invoke `noSuchMethod`.
-  Expect.equals(expectedValue, (a as dynamic).bar); //# 07: ok
-}
-
-main() {
-  // Dynamic invocations can make a `B` seem to implement `A`.
-  Expect.equals(31, (new B() as dynamic).foo('Hello!')); //# 01: ok
-
-  // But `noSuchMethod` does not affect the type or interface of a class.
-  A a; //# 02: continued
-  Expect.throws(() => a = new B() as dynamic); //# 02: ok
-  new B().foo('Hello!'); //# 03: compile-time error
-
-  test(new C(), 41);
-  test(new D(), 31);
-}
diff --git a/tests/language_2/null/access_error_test.dart b/tests/language_2/null/access_error_test.dart
deleted file mode 100644
index 75808fd15b7..00000000000
--- a/tests/language_2/null/access_error_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class NullAccessTest {
-  static void testNullVariable() {
-    int variable;
-    bool exceptionCaught = false;
-    bool wrongExceptionCaught = false;
-    try {
-      variable++;
-    } on NoSuchMethodError catch (ex) {
-      exceptionCaught = true;
-    } catch (ex) {
-      wrongExceptionCaught = true;
-    }
-    Expect.isTrue(exceptionCaught);
-    Expect.isFalse(wrongExceptionCaught);
-  }
-
-  static int helperFunction(int parameter) {
-    return parameter++;
-  }
-
-  static void testNullFunctionCall() {
-    int variable;
-    bool exceptionCaught = false;
-    bool wrongExceptionCaught = false;
-    try {
-      variable = helperFunction(variable);
-    } on NoSuchMethodError catch (ex) {
-      exceptionCaught = true;
-    } catch (ex) {
-      wrongExceptionCaught = true;
-    }
-    Expect.isTrue(exceptionCaught);
-    Expect.isFalse(wrongExceptionCaught);
-  }
-
-  static void testMain() {
-    testNullVariable();
-    testNullFunctionCall();
-  }
-}
-
-main() {
-  NullAccessTest.testMain();
-}
diff --git a/tests/language_2/null/checked_null_test.dart b/tests/language_2/null/checked_null_test.dart
deleted file mode 100644
index f13f61430d9..00000000000
--- a/tests/language_2/null/checked_null_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  Map a;
-  Comparator b;
-  // This code exhibited a bug in dart2js, where the type of [a] was inferred to
-  // be [Comparator] or null;
-  A()
-      : b = null,
-        a = null;
-}
-
-main() {
-  Expect.throws(bar);
-}
-
-bar() {
-  // We would create a typed selector for the call to foo, where the
-  // receiver type is a typedef. Some code in the dart2js backend were
-  // not dealing correctly with typedefs and lead the compiler to
-  // crash.
-  new A().a.foo();
-  //        ^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_METHOD
-  // [cfe] The method 'foo' isn't defined for the class 'Map<dynamic, dynamic>'.
-}
diff --git a/tests/language_2/null/checked_runtime_test.dart b/tests/language_2/null/checked_runtime_test.dart
deleted file mode 100644
index 20b088a8ef4..00000000000
--- a/tests/language_2/null/checked_runtime_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class A {
-  Map a;
-  Comparator b;
-  // This code exhibited a bug in dart2js, where the type of [a] was inferred to
-  // be [Comparator] or null;
-  A()
-      : b = null,
-        a = null;
-}
-
-main() {
-
-}
-
-bar() {
-  // We would create a typed selector for the call to foo, where the
-  // receiver type is a typedef. Some code in the dart2js backend were
-  // not dealing correctly with typedefs and lead the compiler to
-  // crash.
-
-}
diff --git a/tests/language_2/null/inherit_static_errors_test.dart b/tests/language_2/null/inherit_static_errors_test.dart
deleted file mode 100644
index 099abb9bf7f..00000000000
--- a/tests/language_2/null/inherit_static_errors_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// TODO(https://github.com/dart-lang/sdk/issues/51557): Decide if the mixins
-// being applied in this test should be "mixin", "mixin class" or the test
-// should be left at 2.19.
-// @dart=2.19
-
-class BadExtends extends Null {}
-//                       ^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-//    ^
-// [cfe] 'Null' is restricted and can't be extended or implemented.
-// [cfe] The superclass, 'Null', has no unnamed constructor that takes no arguments.
-//                       ^
-// [cfe] 'Null' is restricted and can't be extended or implemented.
-
-class BadImplements implements Null {}
-//                             ^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-//    ^
-// [cfe] 'Null' is restricted and can't be extended or implemented.
-//                             ^
-// [cfe] 'Null' is restricted and can't be extended or implemented.
-
-class BadMixin extends Object with Null {}
-//                                 ^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-//    ^
-// [cfe] 'Null' is restricted and can't be extended or implemented.
-//                                 ^
-// [cfe] 'Null' is restricted and can't be extended or implemented.
-
-class BadMixin2 = Object with Null;
-//                            ^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-//    ^
-// [cfe] 'Null' is restricted and can't be extended or implemented.
-//                            ^
-// [cfe] 'Null' is restricted and can't be extended or implemented.
diff --git a/tests/language_2/null/inline_test.dart b/tests/language_2/null/inline_test.dart
deleted file mode 100644
index c62383d62f9..00000000000
--- a/tests/language_2/null/inline_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that inlining takes null into account.
-
-import "package:expect/expect.dart";
-
-class A {
-  foo() => this;
-}
-
-var global;
-
-main() {
-  Expect.throws(() => global.foo());
-  global = new A();
-  Expect.equals(global, global.foo());
-}
diff --git a/tests/language_2/null/is2_test.dart b/tests/language_2/null/is2_test.dart
deleted file mode 100644
index e8fc8e1709f..00000000000
--- a/tests/language_2/null/is2_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Test<T> {
-  foo(a) => a is T;
-}
-
-main() {
-  Expect.isTrue(new Test<Object>().foo(null));
-  Expect.isTrue(new Test<dynamic>().foo(null));
-  Expect.isFalse(new Test<int>().foo(null));
-  Expect.isFalse(null is List<Object>);
-}
diff --git a/tests/language_2/null/is_test.dart b/tests/language_2/null/is_test.dart
deleted file mode 100644
index 32478fdd8e6..00000000000
--- a/tests/language_2/null/is_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.isTrue(null is Object);
-  Expect.isTrue(null is Null);
-  Expect.isFalse(null is int);
-  Expect.isFalse(null is bool);
-  Expect.isFalse(null is num);
-  Expect.isFalse(null is String);
-  Expect.isFalse(null is List);
-  Expect.isFalse(null is Expect);
-
-  test(null);
-
-  Expect.isFalse(1 is Null);
-  Expect.isFalse("1" is Null);
-  Expect.isFalse(true is Null);
-  Expect.isFalse(false is Null);
-  Expect.isFalse(new Object() is Null);
-
-  testNegative(1);
-  testNegative("1");
-  testNegative(true);
-  testNegative(false);
-  testNegative(new Object());
-}
-
-test(n) {
-  // Test where the argument is not a compile-time constant.
-  Expect.isTrue(n is Object);
-  Expect.isTrue(n is Null);
-  Expect.isFalse(n is int);
-  Expect.isFalse(n is bool);
-  Expect.isFalse(n is num);
-  Expect.isFalse(n is String);
-  Expect.isFalse(n is List);
-  Expect.isFalse(n is Expect);
-}
-
-testNegative(n) {
-  Expect.isFalse(n is Null);
-}
diff --git a/tests/language_2/null/method_test.dart b/tests/language_2/null/method_test.dart
deleted file mode 100644
index d8f331e7e8a..00000000000
--- a/tests/language_2/null/method_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to not compile null methods
-// in the presence of typed selectors.
-
-import "package:expect/expect.dart";
-
-class C {
-  foo(s) {
-    return s.hashCode;
-  }
-}
-
-main() {
-  var c = new C();
-  Expect.isNotNull(c.foo('foo'));
-  Expect.isNotNull(c.foo(null));
-}
diff --git a/tests/language_2/null/no_such_method_test.dart b/tests/language_2/null/no_such_method_test.dart
deleted file mode 100644
index 4f8bba66f66..00000000000
--- a/tests/language_2/null/no_such_method_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.throwsNoSuchMethodError(() => -(null as dynamic));
-  // Make sure we have an untyped call to operator-.
-  print(-array[0]);
-}
-
-var array = <dynamic>[1];
diff --git a/tests/language_2/null/null2_test.dart b/tests/language_2/null/null2_test.dart
deleted file mode 100644
index cb7a9b410ab..00000000000
--- a/tests/language_2/null/null2_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Second dart test program.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Magic incantation to avoid the compiler recognizing the constant values
-// at compile time. If the result is computed at compile time, the dynamic code
-// will not be tested.
-confuse(x) {
-  try {
-    if (new DateTime.now().millisecondsSinceEpoch == 42) x = 42;
-    throw [x];
-  } on dynamic catch (e) {
-    return e[0];
-  }
-  return 42;
-}
-
-main() {
-  Expect.equals("Null", null.runtimeType.toString());
-  Expect.equals("Null", confuse(null).runtimeType.toString());
-}
diff --git a/tests/language_2/null/null_test.dart b/tests/language_2/null/null_test.dart
deleted file mode 100644
index c7d39dd0168..00000000000
--- a/tests/language_2/null/null_test.dart
+++ /dev/null
@@ -1,189 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Second dart test program.
-
-// @dart = 2.9
-
-// VMOptions=--optimization-counter-threshold=90
-
-import "package:expect/expect.dart";
-
-class EqualsNotCalled {
-  int get hashCode => throw "And don't warn!";
-  bool operator ==(Object other) {
-    throw "SHOULD NOT GET HERE";
-  }
-}
-
-class Generic<T> {
-  bool test(o) => o is T;
-  T cast(o) => o as T;
-  Type get type => T;
-}
-
-class Generic2<T, S> {
-  bool test(o) => new Generic<T>().test(o);
-  T cast(o) => new Generic<T>().cast(o);
-  Type get type => new Generic<T>().type;
-}
-
-// Magic incantation to avoid the compiler recognizing the constant values
-// at compile time. If the result is computed at compile time, the dynamic code
-// will not be tested.
-confuse(x) {
-  try {
-    if (new DateTime.now().millisecondsSinceEpoch == 42) x = 42;
-    throw [x];
-  } on dynamic catch (e) {
-    return e[0];
-  }
-  return 42;
-}
-
-void main() {
-  for (int i = 0; i < 100; i++) {
-    test();
-  }
-}
-
-void test() {
-  int foo(var obj) {
-    Expect.equals(null, obj);
-  }
-
-  bool compareToNull(var value) {
-    return null == value;
-  }
-
-  bool compareWithNull(var value) {
-    return value == null;
-  }
-
-  var val = 1;
-  var obj = confuse(null); // Null value that isn't known at compile-time.
-  Expect.isTrue(identical(obj, null), "identical");
-
-  Expect.isTrue(null == null);
-  Expect.isTrue(null == obj);
-  Expect.isTrue(obj == null);
-  Expect.isTrue(obj == obj);
-
-  // Using  == null  or  null ==  will not call any equality method.
-  Expect.isFalse(new EqualsNotCalled() == null);
-  Expect.isFalse(null == new EqualsNotCalled());
-  Expect.isFalse(new EqualsNotCalled() == obj);
-  Expect.isFalse(obj == new EqualsNotCalled());
-
-  Expect.isFalse(null == false);
-  Expect.isFalse(null == 0);
-  Expect.isFalse(null == "");
-  Expect.isFalse(null == []);
-  Expect.isFalse(null == 0.0);
-  Expect.isFalse(null == -0.0);
-  Expect.isFalse(null == double.nan);
-
-  Expect.isFalse(obj == false);
-  Expect.isFalse(obj == 0);
-  Expect.isFalse(obj == "");
-  Expect.isFalse(obj == []);
-  Expect.isFalse(obj == 0.0);
-  Expect.isFalse(obj == -0.0);
-  Expect.isFalse(obj == double.nan);
-
-  // Explicit constant expressions.
-  const t1 = null == null;
-  const t2 = null == 0;
-  const t3 = false == null;
-  Expect.isTrue(t1);
-  Expect.isFalse(t2);
-  Expect.isFalse(t3);
-
-  foo(obj);
-  foo(null);
-  if (obj != null) {
-    foo(null);
-  } else {
-    foo(obj);
-  }
-
-  // Test "is" operator.
-  Expect.isTrue(null is Null);
-  Expect.isTrue(obj is Null);
-  Expect.isTrue(null is Object);
-  Expect.isTrue(obj is Object);
-  Expect.isTrue(null is dynamic);
-  Expect.isTrue(obj is dynamic);
-  Expect.isFalse(null is String);
-  Expect.isFalse(obj is String);
-  Expect.isFalse(0 is Null); // It's only assignable.
-  Expect.isFalse(null is! Null);
-  Expect.isFalse(obj is! Null);
-  Expect.isFalse(null is! Object);
-  Expect.isFalse(obj is! Object);
-  Expect.isFalse(null is! dynamic);
-  Expect.isFalse(obj is! dynamic);
-  Expect.isTrue(null is! String);
-  Expect.isTrue(obj is! String);
-  Expect.isTrue(0 is! Null); // It's only assignable.
-
-  // Test "is" operator with generic type variable.
-  Expect.isTrue(new Generic<Null>().test(null));
-  Expect.isFalse(new Generic<Null>().test(42));
-  Expect.isTrue(new Generic2<Null, int>().test(null));
-  Expect.isFalse(new Generic2<Null, int>().test(42));
-
-  // Test cast, "as", operator.
-  Expect.equals(null, null as Null);
-  Expect.equals(null, null as Object);
-  Expect.equals(null, null as int);
-  Expect.throwsTypeError(() => 42 as Null);
-  Expect.equals(null, new Generic<Null>().cast(null));
-  Expect.equals(null, new Generic<Object>().cast(null));
-  Expect.equals(null, new Generic<int>().cast(null));
-
-  Expect.equals(null, obj as Null);
-  Expect.equals(null, obj as Object);
-  Expect.equals(null, obj as int);
-  Expect.equals(null, new Generic<Null>().cast(obj));
-  Expect.equals(null, new Generic<Object>().cast(obj));
-  Expect.equals(null, new Generic<int>().cast(obj));
-
-  Expect.equals("null", null.toString());
-  Expect.equals("null", "${null}");
-  Expect.equals("null", obj.toString());
-  Expect.equals("null", "${obj}");
-
-  Expect.equals(Null, null.runtimeType);
-  Expect.equals(Null, obj.runtimeType);
-  Expect.equals(Null, new Generic<Null>().type);
-  Expect.equals(Null, new Generic2<Null, int>().type);
-
-  Expect.isFalse(compareToNull(val));
-  Expect.isTrue(compareToNull(obj));
-  Expect.isFalse(compareWithNull(val));
-  Expect.isTrue(compareWithNull(obj));
-
-  // Method/value extraction. The runtimeType was checked above, and operator==
-  // cannot be extracted.
-  // Currently fails in VM.
-  Expect.equals(null.toString, obj.toString);
-  Expect.equals(null.noSuchMethod, obj.noSuchMethod);
-  Expect.equals(null.hashCode, obj.hashCode);
-
-  var toString = null.toString;
-  Expect.equals("null", toString());
-  Expect.equals("null", Function.apply(toString, []));
-
-  Expect.throws(() => obj.notDeclared());
-  var noSuchMethod = null.noSuchMethod;
-  // Assign to "dynamic" to prevent compile-time error.
-  dynamic capture = new CaptureInvocationMirror();
-  var mirror = capture.notDeclared();
-  Expect.throws(() => noSuchMethod(mirror));
-  Expect.throws(() => Function.apply(noSuchMethod, [mirror]));
-}
-
-class CaptureInvocationMirror {
-  noSuchMethod(mirror) => mirror;
-}
diff --git a/tests/language_2/null/to_string2_test.dart b/tests/language_2/null/to_string2_test.dart
deleted file mode 100644
index 26a40db59b7..00000000000
--- a/tests/language_2/null/to_string2_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test correct handling of NULL object in invocation and implicit closures.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-A foo() => null;
-
-main() {
-  A nullObj = foo();
-  var x = nullObj.toString();
-  Expect.isTrue(x is String);
-  var y = nullObj.toString;
-  Expect.isNotNull(y);
-}
diff --git a/tests/language_2/null/to_string_test.dart b/tests/language_2/null/to_string_test.dart
deleted file mode 100644
index 08a865b8e5c..00000000000
--- a/tests/language_2/null/to_string_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test correct handling of NULL object in invocation and implicit closures.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  var nullObj = null;
-  var x = nullObj.toString();
-  Expect.isTrue(x is String);
-  var y = nullObj.toString;
-  Expect.isNotNull(y);
-}
diff --git a/tests/language_2/null_aware/access_runtime_1_test.dart b/tests/language_2/null_aware/access_runtime_1_test.dart
deleted file mode 100644
index 8cb0707c7cf..00000000000
--- a/tests/language_2/null_aware/access_runtime_1_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it does not appear on the LHS of an
-// assignment.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class B {}
-
-class C extends B {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if property access using "?." is not
-  // implemented.  This makes status files easier to maintain.
-  nullC()?.v;
-
-  // e1?.id is equivalent to ((x) => x == null ? null : x.id)(e1).
-  Expect.equals(null, nullC()?.v);
-
-
-  // C?.id is equivalent to C.id.
-
-
-
-  // The static type of e1?.d is the static type of e1.id.
-
-
-
-
-
-
-
-  // Let T be the static type of e1 and let y be a fresh variable of type T.
-  // Exactly the same static warnings that would be caused by y.id are also
-  // generated in the case of e1?.id.
-
-
-
-  // '?.' cannot be used to access toplevel properties in libraries imported via
-  // prefix.
-
-
-  // Nor can it be used to access the hashCode getter on the class Type.
-
-
-}
diff --git a/tests/language_2/null_aware/access_runtime_2_test.dart b/tests/language_2/null_aware/access_runtime_2_test.dart
deleted file mode 100644
index fd00d2b599e..00000000000
--- a/tests/language_2/null_aware/access_runtime_2_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it does not appear on the LHS of an
-// assignment.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class B {}
-
-class C extends B {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if property access using "?." is not
-  // implemented.  This makes status files easier to maintain.
-  nullC()?.v;
-
-  // e1?.id is equivalent to ((x) => x == null ? null : x.id)(e1).
-
-  Expect.equals(1, new C(1)?.v);
-
-  // C?.id is equivalent to C.id.
-
-
-
-  // The static type of e1?.d is the static type of e1.id.
-
-
-
-
-
-
-
-  // Let T be the static type of e1 and let y be a fresh variable of type T.
-  // Exactly the same static warnings that would be caused by y.id are also
-  // generated in the case of e1?.id.
-
-
-
-  // '?.' cannot be used to access toplevel properties in libraries imported via
-  // prefix.
-
-
-  // Nor can it be used to access the hashCode getter on the class Type.
-
-
-}
diff --git a/tests/language_2/null_aware/access_runtime_3_test.dart b/tests/language_2/null_aware/access_runtime_3_test.dart
deleted file mode 100644
index 0db61029952..00000000000
--- a/tests/language_2/null_aware/access_runtime_3_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it does not appear on the LHS of an
-// assignment.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class B {}
-
-class C extends B {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if property access using "?." is not
-  // implemented.  This makes status files easier to maintain.
-  nullC()?.v;
-
-  // e1?.id is equivalent to ((x) => x == null ? null : x.id)(e1).
-
-
-
-  // C?.id is equivalent to C.id.
-  { C.staticInt = 1; Expect.equals(1, C?.staticInt); }
-
-
-  // The static type of e1?.d is the static type of e1.id.
-
-
-
-
-
-
-
-  // Let T be the static type of e1 and let y be a fresh variable of type T.
-  // Exactly the same static warnings that would be caused by y.id are also
-  // generated in the case of e1?.id.
-
-
-
-  // '?.' cannot be used to access toplevel properties in libraries imported via
-  // prefix.
-
-
-  // Nor can it be used to access the hashCode getter on the class Type.
-
-
-}
diff --git a/tests/language_2/null_aware/access_runtime_4_test.dart b/tests/language_2/null_aware/access_runtime_4_test.dart
deleted file mode 100644
index 8e664c95bdf..00000000000
--- a/tests/language_2/null_aware/access_runtime_4_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it does not appear on the LHS of an
-// assignment.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class B {}
-
-class C extends B {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if property access using "?." is not
-  // implemented.  This makes status files easier to maintain.
-  nullC()?.v;
-
-  // e1?.id is equivalent to ((x) => x == null ? null : x.id)(e1).
-
-
-
-  // C?.id is equivalent to C.id.
-
-  { h.C.staticInt = 1; Expect.equals(1, h.C?.staticInt); }
-
-  // The static type of e1?.d is the static type of e1.id.
-
-
-
-
-
-
-
-  // Let T be the static type of e1 and let y be a fresh variable of type T.
-  // Exactly the same static warnings that would be caused by y.id are also
-  // generated in the case of e1?.id.
-
-
-
-  // '?.' cannot be used to access toplevel properties in libraries imported via
-  // prefix.
-
-
-  // Nor can it be used to access the hashCode getter on the class Type.
-
-
-}
diff --git a/tests/language_2/null_aware/access_runtime_5_test.dart b/tests/language_2/null_aware/access_runtime_5_test.dart
deleted file mode 100644
index 065ced133b9..00000000000
--- a/tests/language_2/null_aware/access_runtime_5_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it does not appear on the LHS of an
-// assignment.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class B {}
-
-class C extends B {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if property access using "?." is not
-  // implemented.  This makes status files easier to maintain.
-  nullC()?.v;
-
-  // e1?.id is equivalent to ((x) => x == null ? null : x.id)(e1).
-
-
-
-  // C?.id is equivalent to C.id.
-
-
-
-  // The static type of e1?.d is the static type of e1.id.
-  { int i = new C(1)?.v; Expect.equals(1, i); }
-
-
-
-
-
-
-  // Let T be the static type of e1 and let y be a fresh variable of type T.
-  // Exactly the same static warnings that would be caused by y.id are also
-  // generated in the case of e1?.id.
-
-
-
-  // '?.' cannot be used to access toplevel properties in libraries imported via
-  // prefix.
-
-
-  // Nor can it be used to access the hashCode getter on the class Type.
-
-
-}
diff --git a/tests/language_2/null_aware/access_runtime_6_test.dart b/tests/language_2/null_aware/access_runtime_6_test.dart
deleted file mode 100644
index 73fb9f1aa38..00000000000
--- a/tests/language_2/null_aware/access_runtime_6_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it does not appear on the LHS of an
-// assignment.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class B {}
-
-class C extends B {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if property access using "?." is not
-  // implemented.  This makes status files easier to maintain.
-  nullC()?.v;
-
-  // e1?.id is equivalent to ((x) => x == null ? null : x.id)(e1).
-
-
-
-  // C?.id is equivalent to C.id.
-
-
-
-  // The static type of e1?.d is the static type of e1.id.
-
-
-  { C.staticInt = 1; int i = C?.staticInt; Expect.equals(1, i); }
-
-
-
-
-  // Let T be the static type of e1 and let y be a fresh variable of type T.
-  // Exactly the same static warnings that would be caused by y.id are also
-  // generated in the case of e1?.id.
-
-
-
-  // '?.' cannot be used to access toplevel properties in libraries imported via
-  // prefix.
-
-
-  // Nor can it be used to access the hashCode getter on the class Type.
-
-
-}
diff --git a/tests/language_2/null_aware/access_runtime_7_test.dart b/tests/language_2/null_aware/access_runtime_7_test.dart
deleted file mode 100644
index 2c17b29b8f6..00000000000
--- a/tests/language_2/null_aware/access_runtime_7_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it does not appear on the LHS of an
-// assignment.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class B {}
-
-class C extends B {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if property access using "?." is not
-  // implemented.  This makes status files easier to maintain.
-  nullC()?.v;
-
-  // e1?.id is equivalent to ((x) => x == null ? null : x.id)(e1).
-
-
-
-  // C?.id is equivalent to C.id.
-
-
-
-  // The static type of e1?.d is the static type of e1.id.
-
-
-
-  { h.C.staticInt = 1; int i = h.C?.staticInt; Expect.equals(1, i); }
-
-
-
-  // Let T be the static type of e1 and let y be a fresh variable of type T.
-  // Exactly the same static warnings that would be caused by y.id are also
-  // generated in the case of e1?.id.
-
-
-
-  // '?.' cannot be used to access toplevel properties in libraries imported via
-  // prefix.
-
-
-  // Nor can it be used to access the hashCode getter on the class Type.
-
-
-}
diff --git a/tests/language_2/null_aware/access_runtime_test.dart b/tests/language_2/null_aware/access_runtime_test.dart
deleted file mode 100644
index f28fcc40db8..00000000000
--- a/tests/language_2/null_aware/access_runtime_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it does not appear on the LHS of an
-// assignment.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class B {}
-
-class C extends B {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if property access using "?." is not
-  // implemented.  This makes status files easier to maintain.
-  nullC()?.v;
-
-  // e1?.id is equivalent to ((x) => x == null ? null : x.id)(e1).
-
-
-
-  // C?.id is equivalent to C.id.
-
-
-
-  // The static type of e1?.d is the static type of e1.id.
-
-
-
-
-
-
-
-  // Let T be the static type of e1 and let y be a fresh variable of type T.
-  // Exactly the same static warnings that would be caused by y.id are also
-  // generated in the case of e1?.id.
-
-
-
-  // '?.' cannot be used to access toplevel properties in libraries imported via
-  // prefix.
-
-
-  // Nor can it be used to access the hashCode getter on the class Type.
-
-
-}
diff --git a/tests/language_2/null_aware/access_test.dart b/tests/language_2/null_aware/access_test.dart
deleted file mode 100644
index 9b5ec26921c..00000000000
--- a/tests/language_2/null_aware/access_test.dart
+++ /dev/null
@@ -1,84 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify semantics of the ?. operator when it does not appear on the LHS of an
-// assignment.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class B {}
-
-class C extends B {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if property access using "?." is not
-  // implemented.  This makes status files easier to maintain.
-  nullC()?.v;
-
-  // e1?.id is equivalent to ((x) => x == null ? null : x.id)(e1).
-  Expect.equals(null, nullC()?.v);
-  Expect.equals(1, new C(1)?.v);
-
-  // C?.id is equivalent to C.id.
-  { C.staticInt = 1; Expect.equals(1, C?.staticInt); }
-  { h.C.staticInt = 1; Expect.equals(1, h.C?.staticInt); }
-
-  // The static type of e1?.d is the static type of e1.id.
-  { int i = new C(1)?.v; Expect.equals(1, i); }
-  { String s = new C(null)?.v; Expect.equals(null, s); }
-  //           ^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //               ^
-  // [cfe] A value of type 'int' can't be assigned to a variable of type 'String'.
-  { C.staticInt = 1; int i = C?.staticInt; Expect.equals(1, i); }
-  { h.C.staticInt = 1; int i = h.C?.staticInt; Expect.equals(1, i); }
-  { C.staticInt = null; String s = C?.staticInt; Expect.equals(null, s); }
-  //                               ^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //                                  ^
-  // [cfe] A value of type 'int' can't be assigned to a variable of type 'String'.
-  { h.C.staticInt = null; String s = h.C?.staticInt; Expect.equals(null, s); }
-  //                                 ^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //                                      ^
-  // [cfe] A value of type 'int' can't be assigned to a variable of type 'String'.
-
-  // Let T be the static type of e1 and let y be a fresh variable of type T.
-  // Exactly the same static warnings that would be caused by y.id are also
-  // generated in the case of e1?.id.
-  Expect.equals(null, nullC()?.bad);
-  //                           ^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'bad' isn't defined for the class 'C'.
-  { B b = new C(1); Expect.equals(1, b?.v); }
-  //                                    ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'v' isn't defined for the class 'B'.
-
-  // '?.' cannot be used to access toplevel properties in libraries imported via
-  // prefix.
-  var x = h?.topLevelVar;
-  //      ^
-  // [analyzer] COMPILE_TIME_ERROR.PREFIX_IDENTIFIER_NOT_FOLLOWED_BY_DOT
-  // [cfe] A prefix can't be used with null-aware operators.
-
-  // Nor can it be used to access the hashCode getter on the class Type.
-  Expect.throwsNoSuchMethodError(() => C?.hashCode);
-  //                                      ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] Member not found: 'hashCode'.
-  Expect.throwsNoSuchMethodError(() => h.C?.hashCode);
-  //                                        ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] Member not found: 'hashCode'.
-}
diff --git a/tests/language_2/null_aware/assignment_runtime_10_test.dart b/tests/language_2/null_aware/assignment_runtime_10_test.dart
deleted file mode 100644
index 038604b12c9..00000000000
--- a/tests/language_2/null_aware/assignment_runtime_10_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears on the LHS of an
-// assignment.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-class B {}
-
-class C extends B {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v = e2 is equivalent to ((x) => x == null ? null : x.v = e2)(e1).
-
-
-
-  // C?.v = e2 is equivalent to C.v = e2.
-
-
-
-  // The static type of e1?.v = e2 is the static type of e2.
-
-
-
-
-
-
-
-  // Exactly the same errors that would be caused by e1.v = e2 are
-  // also generated in the case of e1?.v = e2.
-
-
-
-  // e1?.v op= e2 is equivalent to ((x) => x?.v = x.v op e2)(e1).
-
-
-
-  // C?.v op= e2 is equivalent to C.v op= e2.
-  { C.staticInt = 1; Expect.equals(3, C?.staticInt += 2); Expect.equals(3, C?.staticInt); }
-
-  // The static type of e1?.v op= e2 is the static type of e1.v op e2.
-
-
-
-
-  // Let T be the static type of e1 and let y be a fresh variable of type T.
-  // Exactly the same errors that would be caused by y.v op e2 are
-  // also generated in the case of e1?.v op= e2.
-
-
-
-
-
-
-
-
-
-  // '?.' cannot be used to assign to toplevel properties in libraries imported
-  // via prefix.
-
-
-
-}
diff --git a/tests/language_2/null_aware/assignment_runtime_11_test.dart b/tests/language_2/null_aware/assignment_runtime_11_test.dart
deleted file mode 100644
index d7e0c81dee7..00000000000
--- a/tests/language_2/null_aware/assignment_runtime_11_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears on the LHS of an
-// assignment.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-class B {}
-
-class C extends B {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v = e2 is equivalent to ((x) => x == null ? null : x.v = e2)(e1).
-
-
-
-  // C?.v = e2 is equivalent to C.v = e2.
-
-
-
-  // The static type of e1?.v = e2 is the static type of e2.
-
-
-
-
-
-
-
-  // Exactly the same errors that would be caused by e1.v = e2 are
-  // also generated in the case of e1?.v = e2.
-
-
-
-  // e1?.v op= e2 is equivalent to ((x) => x?.v = x.v op e2)(e1).
-
-
-
-  // C?.v op= e2 is equivalent to C.v op= e2.
-
-
-  // The static type of e1?.v op= e2 is the static type of e1.v op e2.
-  { D d = new D(new E()); F f = (d?.v += 1); Expect.identical(d.v, f); }
-
-
-
-  // Let T be the static type of e1 and let y be a fresh variable of type T.
-  // Exactly the same errors that would be caused by y.v op e2 are
-  // also generated in the case of e1?.v op= e2.
-
-
-
-
-
-
-
-
-
-  // '?.' cannot be used to assign to toplevel properties in libraries imported
-  // via prefix.
-
-
-
-}
diff --git a/tests/language_2/null_aware/assignment_runtime_12_test.dart b/tests/language_2/null_aware/assignment_runtime_12_test.dart
deleted file mode 100644
index 18a228a1a65..00000000000
--- a/tests/language_2/null_aware/assignment_runtime_12_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears on the LHS of an
-// assignment.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-class B {}
-
-class C extends B {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v = e2 is equivalent to ((x) => x == null ? null : x.v = e2)(e1).
-
-
-
-  // C?.v = e2 is equivalent to C.v = e2.
-
-
-
-  // The static type of e1?.v = e2 is the static type of e2.
-
-
-
-
-
-
-
-  // Exactly the same errors that would be caused by e1.v = e2 are
-  // also generated in the case of e1?.v = e2.
-
-
-
-  // e1?.v op= e2 is equivalent to ((x) => x?.v = x.v op e2)(e1).
-
-
-
-  // C?.v op= e2 is equivalent to C.v op= e2.
-
-
-  // The static type of e1?.v op= e2 is the static type of e1.v op e2.
-
-  { D.staticE = new E(); F f = (D?.staticE += 1); Expect.identical(D.staticE, f); }
-
-
-  // Let T be the static type of e1 and let y be a fresh variable of type T.
-  // Exactly the same errors that would be caused by y.v op e2 are
-  // also generated in the case of e1?.v op= e2.
-
-
-
-
-
-
-
-
-
-  // '?.' cannot be used to assign to toplevel properties in libraries imported
-  // via prefix.
-
-
-
-}
diff --git a/tests/language_2/null_aware/assignment_runtime_13_test.dart b/tests/language_2/null_aware/assignment_runtime_13_test.dart
deleted file mode 100644
index bcb1be37e9d..00000000000
--- a/tests/language_2/null_aware/assignment_runtime_13_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears on the LHS of an
-// assignment.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-class B {}
-
-class C extends B {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v = e2 is equivalent to ((x) => x == null ? null : x.v = e2)(e1).
-
-
-
-  // C?.v = e2 is equivalent to C.v = e2.
-
-
-
-  // The static type of e1?.v = e2 is the static type of e2.
-
-
-
-
-
-
-
-  // Exactly the same errors that would be caused by e1.v = e2 are
-  // also generated in the case of e1?.v = e2.
-
-
-
-  // e1?.v op= e2 is equivalent to ((x) => x?.v = x.v op e2)(e1).
-
-
-
-  // C?.v op= e2 is equivalent to C.v op= e2.
-
-
-  // The static type of e1?.v op= e2 is the static type of e1.v op e2.
-
-
-  { h.D.staticE = new h.E(); h.F f = (h.D?.staticE += 1); Expect.identical(h.D.staticE, f); }
-
-  // Let T be the static type of e1 and let y be a fresh variable of type T.
-  // Exactly the same errors that would be caused by y.v op e2 are
-  // also generated in the case of e1?.v op= e2.
-
-
-
-
-
-
-
-
-
-  // '?.' cannot be used to assign to toplevel properties in libraries imported
-  // via prefix.
-
-
-
-}
diff --git a/tests/language_2/null_aware/assignment_runtime_1_test.dart b/tests/language_2/null_aware/assignment_runtime_1_test.dart
deleted file mode 100644
index 2f114730189..00000000000
--- a/tests/language_2/null_aware/assignment_runtime_1_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears on the LHS of an
-// assignment.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-class B {}
-
-class C extends B {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v = e2 is equivalent to ((x) => x == null ? null : x.v = e2)(e1).
-  Expect.equals(null, nullC()?.v = bad());
-
-
-  // C?.v = e2 is equivalent to C.v = e2.
-
-
-
-  // The static type of e1?.v = e2 is the static type of e2.
-
-
-
-
-
-
-
-  // Exactly the same errors that would be caused by e1.v = e2 are
-  // also generated in the case of e1?.v = e2.
-
-
-
-  // e1?.v op= e2 is equivalent to ((x) => x?.v = x.v op e2)(e1).
-
-
-
-  // C?.v op= e2 is equivalent to C.v op= e2.
-
-
-  // The static type of e1?.v op= e2 is the static type of e1.v op e2.
-
-
-
-
-  // Let T be the static type of e1 and let y be a fresh variable of type T.
-  // Exactly the same errors that would be caused by y.v op e2 are
-  // also generated in the case of e1?.v op= e2.
-
-
-
-
-
-
-
-
-
-  // '?.' cannot be used to assign to toplevel properties in libraries imported
-  // via prefix.
-
-
-
-}
diff --git a/tests/language_2/null_aware/assignment_runtime_2_test.dart b/tests/language_2/null_aware/assignment_runtime_2_test.dart
deleted file mode 100644
index d286599c0a4..00000000000
--- a/tests/language_2/null_aware/assignment_runtime_2_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears on the LHS of an
-// assignment.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-class B {}
-
-class C extends B {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v = e2 is equivalent to ((x) => x == null ? null : x.v = e2)(e1).
-
-  { C c = new C(1); Expect.equals(2, c?.v = 2); Expect.equals(2, c.v); }
-
-  // C?.v = e2 is equivalent to C.v = e2.
-
-
-
-  // The static type of e1?.v = e2 is the static type of e2.
-
-
-
-
-
-
-
-  // Exactly the same errors that would be caused by e1.v = e2 are
-  // also generated in the case of e1?.v = e2.
-
-
-
-  // e1?.v op= e2 is equivalent to ((x) => x?.v = x.v op e2)(e1).
-
-
-
-  // C?.v op= e2 is equivalent to C.v op= e2.
-
-
-  // The static type of e1?.v op= e2 is the static type of e1.v op e2.
-
-
-
-
-  // Let T be the static type of e1 and let y be a fresh variable of type T.
-  // Exactly the same errors that would be caused by y.v op e2 are
-  // also generated in the case of e1?.v op= e2.
-
-
-
-
-
-
-
-
-
-  // '?.' cannot be used to assign to toplevel properties in libraries imported
-  // via prefix.
-
-
-
-}
diff --git a/tests/language_2/null_aware/assignment_runtime_3_test.dart b/tests/language_2/null_aware/assignment_runtime_3_test.dart
deleted file mode 100644
index 4f10b56ba04..00000000000
--- a/tests/language_2/null_aware/assignment_runtime_3_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears on the LHS of an
-// assignment.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-class B {}
-
-class C extends B {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v = e2 is equivalent to ((x) => x == null ? null : x.v = e2)(e1).
-
-
-
-  // C?.v = e2 is equivalent to C.v = e2.
-  { C.staticInt = 1; Expect.equals(2, C?.staticInt = 2); Expect.equals(2, C.staticInt); }
-
-
-  // The static type of e1?.v = e2 is the static type of e2.
-
-
-
-
-
-
-
-  // Exactly the same errors that would be caused by e1.v = e2 are
-  // also generated in the case of e1?.v = e2.
-
-
-
-  // e1?.v op= e2 is equivalent to ((x) => x?.v = x.v op e2)(e1).
-
-
-
-  // C?.v op= e2 is equivalent to C.v op= e2.
-
-
-  // The static type of e1?.v op= e2 is the static type of e1.v op e2.
-
-
-
-
-  // Let T be the static type of e1 and let y be a fresh variable of type T.
-  // Exactly the same errors that would be caused by y.v op e2 are
-  // also generated in the case of e1?.v op= e2.
-
-
-
-
-
-
-
-
-
-  // '?.' cannot be used to assign to toplevel properties in libraries imported
-  // via prefix.
-
-
-
-}
diff --git a/tests/language_2/null_aware/assignment_runtime_4_test.dart b/tests/language_2/null_aware/assignment_runtime_4_test.dart
deleted file mode 100644
index ce893457755..00000000000
--- a/tests/language_2/null_aware/assignment_runtime_4_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears on the LHS of an
-// assignment.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-class B {}
-
-class C extends B {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v = e2 is equivalent to ((x) => x == null ? null : x.v = e2)(e1).
-
-
-
-  // C?.v = e2 is equivalent to C.v = e2.
-
-  { h.C.staticInt = 1; Expect.equals(2, h.C?.staticInt = 2); Expect.equals(2, h.C.staticInt); }
-
-  // The static type of e1?.v = e2 is the static type of e2.
-
-
-
-
-
-
-
-  // Exactly the same errors that would be caused by e1.v = e2 are
-  // also generated in the case of e1?.v = e2.
-
-
-
-  // e1?.v op= e2 is equivalent to ((x) => x?.v = x.v op e2)(e1).
-
-
-
-  // C?.v op= e2 is equivalent to C.v op= e2.
-
-
-  // The static type of e1?.v op= e2 is the static type of e1.v op e2.
-
-
-
-
-  // Let T be the static type of e1 and let y be a fresh variable of type T.
-  // Exactly the same errors that would be caused by y.v op e2 are
-  // also generated in the case of e1?.v op= e2.
-
-
-
-
-
-
-
-
-
-  // '?.' cannot be used to assign to toplevel properties in libraries imported
-  // via prefix.
-
-
-
-}
diff --git a/tests/language_2/null_aware/assignment_runtime_5_test.dart b/tests/language_2/null_aware/assignment_runtime_5_test.dart
deleted file mode 100644
index 6d2e41ebb48..00000000000
--- a/tests/language_2/null_aware/assignment_runtime_5_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears on the LHS of an
-// assignment.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-class B {}
-
-class C extends B {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v = e2 is equivalent to ((x) => x == null ? null : x.v = e2)(e1).
-
-
-
-  // C?.v = e2 is equivalent to C.v = e2.
-
-
-
-  // The static type of e1?.v = e2 is the static type of e2.
-  { D d = new D(new E()); G g = new G(); F f = (d?.v = g); Expect.identical(f, g); }
-
-
-
-
-
-
-  // Exactly the same errors that would be caused by e1.v = e2 are
-  // also generated in the case of e1?.v = e2.
-
-
-
-  // e1?.v op= e2 is equivalent to ((x) => x?.v = x.v op e2)(e1).
-
-
-
-  // C?.v op= e2 is equivalent to C.v op= e2.
-
-
-  // The static type of e1?.v op= e2 is the static type of e1.v op e2.
-
-
-
-
-  // Let T be the static type of e1 and let y be a fresh variable of type T.
-  // Exactly the same errors that would be caused by y.v op e2 are
-  // also generated in the case of e1?.v op= e2.
-
-
-
-
-
-
-
-
-
-  // '?.' cannot be used to assign to toplevel properties in libraries imported
-  // via prefix.
-
-
-
-}
diff --git a/tests/language_2/null_aware/assignment_runtime_6_test.dart b/tests/language_2/null_aware/assignment_runtime_6_test.dart
deleted file mode 100644
index 915a914f684..00000000000
--- a/tests/language_2/null_aware/assignment_runtime_6_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears on the LHS of an
-// assignment.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-class B {}
-
-class C extends B {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v = e2 is equivalent to ((x) => x == null ? null : x.v = e2)(e1).
-
-
-
-  // C?.v = e2 is equivalent to C.v = e2.
-
-
-
-  // The static type of e1?.v = e2 is the static type of e2.
-
-
-  { D.staticE = new E(); G g = new G(); F f = (D?.staticE = g); Expect.identical(f, g); }
-
-
-
-
-  // Exactly the same errors that would be caused by e1.v = e2 are
-  // also generated in the case of e1?.v = e2.
-
-
-
-  // e1?.v op= e2 is equivalent to ((x) => x?.v = x.v op e2)(e1).
-
-
-
-  // C?.v op= e2 is equivalent to C.v op= e2.
-
-
-  // The static type of e1?.v op= e2 is the static type of e1.v op e2.
-
-
-
-
-  // Let T be the static type of e1 and let y be a fresh variable of type T.
-  // Exactly the same errors that would be caused by y.v op e2 are
-  // also generated in the case of e1?.v op= e2.
-
-
-
-
-
-
-
-
-
-  // '?.' cannot be used to assign to toplevel properties in libraries imported
-  // via prefix.
-
-
-
-}
diff --git a/tests/language_2/null_aware/assignment_runtime_7_test.dart b/tests/language_2/null_aware/assignment_runtime_7_test.dart
deleted file mode 100644
index a75fcaf9a7d..00000000000
--- a/tests/language_2/null_aware/assignment_runtime_7_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears on the LHS of an
-// assignment.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-class B {}
-
-class C extends B {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v = e2 is equivalent to ((x) => x == null ? null : x.v = e2)(e1).
-
-
-
-  // C?.v = e2 is equivalent to C.v = e2.
-
-
-
-  // The static type of e1?.v = e2 is the static type of e2.
-
-
-
-  { h.D.staticE = new h.E(); h.G g = new h.G(); h.F f = (h.D?.staticE = g); Expect.identical(f, g); }
-
-
-
-  // Exactly the same errors that would be caused by e1.v = e2 are
-  // also generated in the case of e1?.v = e2.
-
-
-
-  // e1?.v op= e2 is equivalent to ((x) => x?.v = x.v op e2)(e1).
-
-
-
-  // C?.v op= e2 is equivalent to C.v op= e2.
-
-
-  // The static type of e1?.v op= e2 is the static type of e1.v op e2.
-
-
-
-
-  // Let T be the static type of e1 and let y be a fresh variable of type T.
-  // Exactly the same errors that would be caused by y.v op e2 are
-  // also generated in the case of e1?.v op= e2.
-
-
-
-
-
-
-
-
-
-  // '?.' cannot be used to assign to toplevel properties in libraries imported
-  // via prefix.
-
-
-
-}
diff --git a/tests/language_2/null_aware/assignment_runtime_8_test.dart b/tests/language_2/null_aware/assignment_runtime_8_test.dart
deleted file mode 100644
index 84767100408..00000000000
--- a/tests/language_2/null_aware/assignment_runtime_8_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears on the LHS of an
-// assignment.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-class B {}
-
-class C extends B {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v = e2 is equivalent to ((x) => x == null ? null : x.v = e2)(e1).
-
-
-
-  // C?.v = e2 is equivalent to C.v = e2.
-
-
-
-  // The static type of e1?.v = e2 is the static type of e2.
-
-
-
-
-
-
-
-  // Exactly the same errors that would be caused by e1.v = e2 are
-  // also generated in the case of e1?.v = e2.
-
-
-
-  // e1?.v op= e2 is equivalent to ((x) => x?.v = x.v op e2)(e1).
-  Expect.equals(null, nullC()?.v += bad());
-
-
-  // C?.v op= e2 is equivalent to C.v op= e2.
-
-
-  // The static type of e1?.v op= e2 is the static type of e1.v op e2.
-
-
-
-
-  // Let T be the static type of e1 and let y be a fresh variable of type T.
-  // Exactly the same errors that would be caused by y.v op e2 are
-  // also generated in the case of e1?.v op= e2.
-
-
-
-
-
-
-
-
-
-  // '?.' cannot be used to assign to toplevel properties in libraries imported
-  // via prefix.
-
-
-
-}
diff --git a/tests/language_2/null_aware/assignment_runtime_9_test.dart b/tests/language_2/null_aware/assignment_runtime_9_test.dart
deleted file mode 100644
index 7664f449cbd..00000000000
--- a/tests/language_2/null_aware/assignment_runtime_9_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears on the LHS of an
-// assignment.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-class B {}
-
-class C extends B {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v = e2 is equivalent to ((x) => x == null ? null : x.v = e2)(e1).
-
-
-
-  // C?.v = e2 is equivalent to C.v = e2.
-
-
-
-  // The static type of e1?.v = e2 is the static type of e2.
-
-
-
-
-
-
-
-  // Exactly the same errors that would be caused by e1.v = e2 are
-  // also generated in the case of e1?.v = e2.
-
-
-
-  // e1?.v op= e2 is equivalent to ((x) => x?.v = x.v op e2)(e1).
-
-  { C c = new C(1); Expect.equals(3, c?.v += 2); Expect.equals(3, c.v); }
-
-  // C?.v op= e2 is equivalent to C.v op= e2.
-
-
-  // The static type of e1?.v op= e2 is the static type of e1.v op e2.
-
-
-
-
-  // Let T be the static type of e1 and let y be a fresh variable of type T.
-  // Exactly the same errors that would be caused by y.v op e2 are
-  // also generated in the case of e1?.v op= e2.
-
-
-
-
-
-
-
-
-
-  // '?.' cannot be used to assign to toplevel properties in libraries imported
-  // via prefix.
-
-
-
-}
diff --git a/tests/language_2/null_aware/assignment_runtime_test.dart b/tests/language_2/null_aware/assignment_runtime_test.dart
deleted file mode 100644
index bc52d425abf..00000000000
--- a/tests/language_2/null_aware/assignment_runtime_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears on the LHS of an
-// assignment.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-class B {}
-
-class C extends B {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v = e2 is equivalent to ((x) => x == null ? null : x.v = e2)(e1).
-
-
-
-  // C?.v = e2 is equivalent to C.v = e2.
-
-
-
-  // The static type of e1?.v = e2 is the static type of e2.
-
-
-
-
-
-
-
-  // Exactly the same errors that would be caused by e1.v = e2 are
-  // also generated in the case of e1?.v = e2.
-
-
-
-  // e1?.v op= e2 is equivalent to ((x) => x?.v = x.v op e2)(e1).
-
-
-
-  // C?.v op= e2 is equivalent to C.v op= e2.
-
-
-  // The static type of e1?.v op= e2 is the static type of e1.v op e2.
-
-
-
-
-  // Let T be the static type of e1 and let y be a fresh variable of type T.
-  // Exactly the same errors that would be caused by y.v op e2 are
-  // also generated in the case of e1?.v op= e2.
-
-
-
-
-
-
-
-
-
-  // '?.' cannot be used to assign to toplevel properties in libraries imported
-  // via prefix.
-
-
-
-}
diff --git a/tests/language_2/null_aware/assignment_test.dart b/tests/language_2/null_aware/assignment_test.dart
deleted file mode 100644
index ac9dbeda3d3..00000000000
--- a/tests/language_2/null_aware/assignment_test.dart
+++ /dev/null
@@ -1,161 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify semantics of the ?. operator when it appears on the LHS of an
-// assignment.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-class B {}
-
-class C extends B {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v = e2 is equivalent to ((x) => x == null ? null : x.v = e2)(e1).
-  Expect.equals(null, nullC()?.v = bad());
-  { C c = new C(1); Expect.equals(2, c?.v = 2); Expect.equals(2, c.v); }
-
-  // C?.v = e2 is equivalent to C.v = e2.
-  { C.staticInt = 1; Expect.equals(2, C?.staticInt = 2); Expect.equals(2, C.staticInt); }
-  { h.C.staticInt = 1; Expect.equals(2, h.C?.staticInt = 2); Expect.equals(2, h.C.staticInt); }
-
-  // The static type of e1?.v = e2 is the static type of e2.
-  { D d = new D(new E()); G g = new G(); F f = (d?.v = g); Expect.identical(f, g); }
-  { D d = new D(new E()); E e = new G(); F f = (d?.v = e); }
-  //                                            ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  // [cfe] A value of type 'E' can't be assigned to a variable of type 'F'.
-  { D.staticE = new E(); G g = new G(); F f = (D?.staticE = g); Expect.identical(f, g); }
-  { h.D.staticE = new h.E(); h.G g = new h.G(); h.F f = (h.D?.staticE = g); Expect.identical(f, g); }
-  { D.staticE = new E(); E e = new G(); F f = (D?.staticE = e); }
-  //                                           ^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //                                              ^
-  // [cfe] A value of type 'E' can't be assigned to a variable of type 'F'.
-  { h.D.staticE = new h.E(); h.E e = new h.G(); h.F f = (h.D?.staticE = e); }
-  //                                                     ^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //                                                          ^
-  // [cfe] A value of type 'E' can't be assigned to a variable of type 'F'.
-
-  // Exactly the same errors that would be caused by e1.v = e2 are
-  // also generated in the case of e1?.v = e2.
-  Expect.equals(null, nullC()?.bad = bad());
-  //                           ^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_SETTER
-  // [cfe] The setter 'bad' isn't defined for the class 'C'.
-  { B b = new C(1); Expect.equals(2, b?.v = 2); }
-  //                                    ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_SETTER
-  // [cfe] The setter 'v' isn't defined for the class 'B'.
-
-  // e1?.v op= e2 is equivalent to ((x) => x?.v = x.v op e2)(e1).
-  Expect.equals(null, nullC()?.v += bad());
-  { C c = new C(1); Expect.equals(3, c?.v += 2); Expect.equals(3, c.v); }
-
-  // C?.v op= e2 is equivalent to C.v op= e2.
-  { C.staticInt = 1; Expect.equals(3, C?.staticInt += 2); Expect.equals(3, C?.staticInt); }
-
-  // The static type of e1?.v op= e2 is the static type of e1.v op e2.
-  { D d = new D(new E()); F f = (d?.v += 1); Expect.identical(d.v, f); }
-  { D.staticE = new E(); F f = (D?.staticE += 1); Expect.identical(D.staticE, f); }
-  { h.D.staticE = new h.E(); h.F f = (h.D?.staticE += 1); Expect.identical(h.D.staticE, f); }
-
-  // Let T be the static type of e1 and let y be a fresh variable of type T.
-  // Exactly the same errors that would be caused by y.v op e2 are
-  // also generated in the case of e1?.v op= e2.
-  nullC()?.bad = bad();
-  //       ^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_SETTER
-  // [cfe] The setter 'bad' isn't defined for the class 'C'.
-  { B b = new C(1); b?.v += 2; }
-  //                   ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_SETTER
-  // [cfe] The getter 'v' isn't defined for the class 'B'.
-  // [cfe] The setter 'v' isn't defined for the class 'B'.
-  { D d = new D(new E()); F f = (d?.v += nullC()); }
-  //                                     ^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] A value of type 'C' can't be assigned to a variable of type 'int'.
-  { D d = new D(new E()); H h = (d?.v += 1); }
-  //                             ^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  // [cfe] A value of type 'G' can't be assigned to a variable of type 'H'.
-  { D.staticE = new E(); F f = (D?.staticE += nullC()); }
-  //                                          ^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] A value of type 'C' can't be assigned to a variable of type 'int'.
-  { h.D.staticE = new h.E(); h.F f = (h.D?.staticE += h.nullC()); }
-  //                                                  ^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  //                                                    ^
-  // [cfe] A value of type 'C' can't be assigned to a variable of type 'int'.
-  { D.staticE = new E(); H h = (D?.staticE += 1); }
-  //                            ^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //                               ^
-  // [cfe] A value of type 'G' can't be assigned to a variable of type 'H'.
-  { h.D.staticE = new h.E(); h.H hh = (h.D?.staticE += 1); }
-  //                                   ^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //                                        ^
-  // [cfe] A value of type 'G' can't be assigned to a variable of type 'H'.
-
-  // '?.' cannot be used to assign to toplevel properties in libraries imported
-  // via prefix.
-  h?.topLevelVar = null;
-//^
-// [analyzer] COMPILE_TIME_ERROR.PREFIX_IDENTIFIER_NOT_FOLLOWED_BY_DOT
-// [cfe] A prefix can't be used with null-aware operators.
-//               ^
-// [cfe] Can't assign to this.
-  h?.topLevelVar += null;
-//^
-// [analyzer] COMPILE_TIME_ERROR.PREFIX_IDENTIFIER_NOT_FOLLOWED_BY_DOT
-// [cfe] A prefix can't be used with null-aware operators.
-//               ^
-// [cfe] Can't assign to this.
-  h?.topLevelVar ??= null;
-//^
-// [analyzer] COMPILE_TIME_ERROR.PREFIX_IDENTIFIER_NOT_FOLLOWED_BY_DOT
-// [cfe] A prefix can't be used with null-aware operators.
-//               ^
-// [cfe] Can't assign to this.
-}
diff --git a/tests/language_2/null_aware/conditional_access_helper.dart b/tests/language_2/null_aware/conditional_access_helper.dart
deleted file mode 100644
index 82e21a06b42..00000000000
--- a/tests/language_2/null_aware/conditional_access_helper.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Library used by conditional_property_assignment_test.dart,
-// conditional_property_access_test.dart, and
-// conditional_method_invocation_test.dart, all of which import it using the
-// prefix "h.".
-
-library lib;
-
-var topLevelVar;
-
-void topLevelFunction() {}
-
-class C {
-  static int staticInt;
-  static staticF(callback()) => callback();
-  static int staticG(int callback()) => callback();
-}
-
-C nullC() => null;
-
-class D {
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
diff --git a/tests/language_2/null_aware/dynamic_test.dart b/tests/language_2/null_aware/dynamic_test.dart
deleted file mode 100644
index ce76d1a8ddc..00000000000
--- a/tests/language_2/null_aware/dynamic_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-void main() {
-  dynamic l;
-  var val = l?.first?.abs();
-  Expect.equals(null, val);
-  l = [null, -2, -3];
-  val = l?.first?.abs();
-  Expect.equals(null, val);
-  l = [-1, -2, -3];
-  val = l?.first?.abs();
-  Expect.equals(1, val);
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_10_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_10_test.dart
deleted file mode 100644
index c1431f55a1d..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_10_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-  { C.staticInt = 1; Expect.equals(1, C?.staticInt--); Expect.equals(0, C.staticInt); }
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_11_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_11_test.dart
deleted file mode 100644
index adf946081b9..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_11_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-
-  { h.C.staticInt = 1; Expect.equals(1, h.C?.staticInt--); Expect.equals(0, h.C.staticInt); }
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_12_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_12_test.dart
deleted file mode 100644
index 7d176e3a391..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_12_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-  { E e1 = new E(); D d = new D(e1); E e2 = d?.v--; Expect.identical(e1, e2); }
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_13_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_13_test.dart
deleted file mode 100644
index 46d5e481803..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_13_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-  { E e1 = new E(); D.staticE = e1; E e2 = D?.staticE--; Expect.identical(e1, e2); }
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_14_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_14_test.dart
deleted file mode 100644
index d07a250b2ae..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_14_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-  { h.E e1 = new h.E(); h.D.staticE = e1; h.E e2 = h.D?.staticE--; Expect.identical(e1, e2); }
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_15_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_15_test.dart
deleted file mode 100644
index bd88fdd0596..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_15_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-  Expect.equals(null, ++nullC()?.v);
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_16_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_16_test.dart
deleted file mode 100644
index b51bf10ca3d..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_16_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-  { C c = new C(1); Expect.equals(2, ++c?.v); Expect.equals(2, c.v); }
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_17_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_17_test.dart
deleted file mode 100644
index 571d2ca1470..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_17_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-  { C.staticInt = 1; Expect.equals(2, ++C?.staticInt); Expect.equals(2, C.staticInt); }
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_18_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_18_test.dart
deleted file mode 100644
index 088ef8ea4b0..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_18_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-  { h.C.staticInt = 1; Expect.equals(2, ++h.C?.staticInt); Expect.equals(2, h.C.staticInt); }
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_19_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_19_test.dart
deleted file mode 100644
index 8306967bdc7..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_19_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-  { D d = new D(new E()); F f = ++d?.v; Expect.identical(d.v, f); }
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_1_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_1_test.dart
deleted file mode 100644
index 64576987410..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_1_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-  Expect.equals(null, nullC()?.v++);
-
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_20_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_20_test.dart
deleted file mode 100644
index 5e1f48bee92..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_20_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-  { D.staticE = new E(); F f = ++D?.staticE; Expect.identical(D.staticE, f); }
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_21_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_21_test.dart
deleted file mode 100644
index 3ee89828297..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_21_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-  { h.D.staticE = new h.E(); h.F f = ++h.D?.staticE; Expect.identical(h.D.staticE, f); }
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_22_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_22_test.dart
deleted file mode 100644
index fda1113f9a3..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_22_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-  Expect.equals(null, --nullC()?.v);
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_23_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_23_test.dart
deleted file mode 100644
index ec140f0a76d..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_23_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-  { C c = new C(1); Expect.equals(0, --c?.v); Expect.equals(0, c.v); }
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_24_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_24_test.dart
deleted file mode 100644
index 1d0d057e1f2..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_24_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-  { C.staticInt = 1; Expect.equals(0, --C?.staticInt); Expect.equals(0, C.staticInt); }
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_25_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_25_test.dart
deleted file mode 100644
index 54b419417b8..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_25_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-  { h.C.staticInt = 1; Expect.equals(0, --h.C?.staticInt); Expect.equals(0, h.C.staticInt); }
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_26_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_26_test.dart
deleted file mode 100644
index 95582eb9290..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_26_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-  { D d = new D(new E()); F f = --d?.v; Expect.identical(d.v, f); }
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_27_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_27_test.dart
deleted file mode 100644
index 14489c25667..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_27_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-  { D.staticE = new E(); F f = --D?.staticE; Expect.identical(D.staticE, f); }
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_28_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_28_test.dart
deleted file mode 100644
index aee46fe5937..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_28_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-  { h.D.staticE = new h.E(); h.F f = --h.D?.staticE; Expect.identical(h.D.staticE, f); }
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_2_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_2_test.dart
deleted file mode 100644
index fffdcd9bca3..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_2_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-  { C c = new C(1); Expect.equals(1, c?.v++); Expect.equals(2, c.v); }
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_3_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_3_test.dart
deleted file mode 100644
index 5cf0193d110..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_3_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-  { C.staticInt = 1; Expect.equals(1, C?.staticInt++); Expect.equals(2, C.staticInt); }
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_4_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_4_test.dart
deleted file mode 100644
index 3d736295799..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_4_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-
-  { h.C.staticInt = 1; Expect.equals(1, h.C?.staticInt++); Expect.equals(2, h.C.staticInt); }
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_5_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_5_test.dart
deleted file mode 100644
index 5c56056232a..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_5_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-  { E e1 = new E(); D d = new D(e1); E e2 = d?.v++; Expect.identical(e1, e2); }
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_6_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_6_test.dart
deleted file mode 100644
index 823cd5e2585..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_6_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-  { E e1 = new E(); D.staticE = e1; E e2 = D?.staticE++; Expect.identical(e1, e2); }
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_7_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_7_test.dart
deleted file mode 100644
index 627a4782f51..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_7_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-  { h.E e1 = new h.E(); h.D.staticE = e1; h.E e2 = h.D?.staticE++; Expect.identical(e1, e2); }
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_8_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_8_test.dart
deleted file mode 100644
index 1b75510094a..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_8_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-  Expect.equals(null, nullC()?.v--);
-
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_9_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_9_test.dart
deleted file mode 100644
index 7afd7dc338c..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_9_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-  { C c = new C(1); Expect.equals(1, c?.v--); Expect.equals(0, c.v); }
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_runtime_test.dart b/tests/language_2/null_aware/increment_decrement_runtime_test.dart
deleted file mode 100644
index 8671ce70f03..00000000000
--- a/tests/language_2/null_aware/increment_decrement_runtime_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-
-
-
-  // C?.v++ is equivalent to C.v++.
-
-
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-
-
-
-  // C?.v-- is equivalent to C.v--.
-
-
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-
-
-
-
-
-
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-
-
-
-  // ++C?.v is equivalent to C?.v += 1.
-
-
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-
-
-
-
-
-
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-
-
-
-  // --C?.v is equivalent to C?.v -= 1.
-
-
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-
-
-
-
-
-
-}
diff --git a/tests/language_2/null_aware/increment_decrement_test.dart b/tests/language_2/null_aware/increment_decrement_test.dart
deleted file mode 100644
index 1b688ee1463..00000000000
--- a/tests/language_2/null_aware/increment_decrement_test.dart
+++ /dev/null
@@ -1,154 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify semantics of the ?. operator when it appears in a postincrement or
-// preincrement expression (or a postdecrement or predecrement expression).
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-class C {
-  int v;
-  C(this.v);
-  static int staticInt;
-}
-
-class D {
-  E v;
-  D(this.v);
-  static E staticE;
-}
-
-class E {
-  G operator +(int i) => new I();
-  G operator -(int i) => new I();
-}
-
-class F {}
-
-class G extends E implements F {}
-
-class H {}
-
-class I extends G implements H {}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if assignment to "?." is not implemented.
-  // This makes status files easier to maintain.
-  nullC()?.v = 1;
-
-  // e1?.v++ is equivalent to ((x) => x == null ? null : x.v++)(e1).
-  Expect.equals(null, nullC()?.v++);
-  { C c = new C(1); Expect.equals(1, c?.v++); Expect.equals(2, c.v); }
-
-  // C?.v++ is equivalent to C.v++.
-  { C.staticInt = 1; Expect.equals(1, C?.staticInt++); Expect.equals(2, C.staticInt); }
-  { h.C.staticInt = 1; Expect.equals(1, h.C?.staticInt++); Expect.equals(2, h.C.staticInt); }
-
-  // The static type of e1?.v++ is the same as the static type of e1.v.
-  { E e1 = new E(); D d = new D(e1); E e2 = d?.v++; Expect.identical(e1, e2); }
-  { G g = new G(); D d = new D(g); F f = d?.v++; Expect.identical(f, g); }
-  //                                     ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  // [cfe] A value of type 'E' can't be assigned to a variable of type 'F'.
-  { E e1 = new E(); D.staticE = e1; E e2 = D?.staticE++; Expect.identical(e1, e2); }
-  { h.E e1 = new h.E(); h.D.staticE = e1; h.E e2 = h.D?.staticE++; Expect.identical(e1, e2); }
-  { G g = new G(); D.staticE = g; F f = D?.staticE++; Expect.identical(f, g); }
-  //                                    ^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //                                              ^
-  // [cfe] A value of type 'E' can't be assigned to a variable of type 'F'.
-  { h.G g = new h.G(); h.D.staticE = g; h.F f = h.D?.staticE++; Expect.identical(f, g); }
-  //                                            ^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //                                                        ^
-  // [cfe] A value of type 'E' can't be assigned to a variable of type 'F'.
-
-  // e1?.v-- is equivalent to ((x) => x == null ? null : x.v--)(e1).
-  Expect.equals(null, nullC()?.v--);
-  { C c = new C(1); Expect.equals(1, c?.v--); Expect.equals(0, c.v); }
-
-  // C?.v-- is equivalent to C.v--.
-  { C.staticInt = 1; Expect.equals(1, C?.staticInt--); Expect.equals(0, C.staticInt); }
-  { h.C.staticInt = 1; Expect.equals(1, h.C?.staticInt--); Expect.equals(0, h.C.staticInt); }
-
-  // The static type of e1?.v-- is the same as the static type of e1.v.
-  { E e1 = new E(); D d = new D(e1); E e2 = d?.v--; Expect.identical(e1, e2); }
-  { G g = new G(); D d = new D(g); F f = d?.v--; Expect.identical(f, g); }
-  //                                     ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  // [cfe] A value of type 'E' can't be assigned to a variable of type 'F'.
-  { E e1 = new E(); D.staticE = e1; E e2 = D?.staticE--; Expect.identical(e1, e2); }
-  { h.E e1 = new h.E(); h.D.staticE = e1; h.E e2 = h.D?.staticE--; Expect.identical(e1, e2); }
-  { G g = new G(); D.staticE = g; F f = D?.staticE--; Expect.identical(f, g); }
-  //                                    ^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //                                              ^
-  // [cfe] A value of type 'E' can't be assigned to a variable of type 'F'.
-  { h.G g = new h.G(); h.D.staticE = g; h.F f = h.D?.staticE--; Expect.identical(f, g); }
-  //                                            ^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //                                                        ^
-  // [cfe] A value of type 'E' can't be assigned to a variable of type 'F'.
-
-  // ++e1?.v is equivalent to e1?.v += 1.
-  Expect.equals(null, ++nullC()?.v);
-  { C c = new C(1); Expect.equals(2, ++c?.v); Expect.equals(2, c.v); }
-
-  // ++C?.v is equivalent to C?.v += 1.
-  { C.staticInt = 1; Expect.equals(2, ++C?.staticInt); Expect.equals(2, C.staticInt); }
-  { h.C.staticInt = 1; Expect.equals(2, ++h.C?.staticInt); Expect.equals(2, h.C.staticInt); }
-
-  // The static type of ++e1?.v is the same as the static type of e1.v + 1.
-  { D d = new D(new E()); F f = ++d?.v; Expect.identical(d.v, f); }
-  { D d = new D(new E()); H h = ++d?.v; Expect.identical(d.v, h); }
-  //                            ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //                              ^
-  // [cfe] A value of type 'G' can't be assigned to a variable of type 'H'.
-  { D.staticE = new E(); F f = ++D?.staticE; Expect.identical(D.staticE, f); }
-  { h.D.staticE = new h.E(); h.F f = ++h.D?.staticE; Expect.identical(h.D.staticE, f); }
-  { D.staticE = new E(); H h = ++D?.staticE; Expect.identical(D.staticE, h); }
-  //                           ^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //                                ^
-  // [cfe] A value of type 'G' can't be assigned to a variable of type 'H'.
-  { h.D.staticE = new h.E(); h.H hh = ++h.D?.staticE; Expect.identical(h.D.staticE, hh); }
-  //                                  ^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //                                         ^
-  // [cfe] A value of type 'G' can't be assigned to a variable of type 'H'.
-
-  // --e1?.v is equivalent to e1?.v -= 1.
-  Expect.equals(null, --nullC()?.v);
-  { C c = new C(1); Expect.equals(0, --c?.v); Expect.equals(0, c.v); }
-
-  // --C?.v is equivalent to C?.v -= 1.
-  { C.staticInt = 1; Expect.equals(0, --C?.staticInt); Expect.equals(0, C.staticInt); }
-  { h.C.staticInt = 1; Expect.equals(0, --h.C?.staticInt); Expect.equals(0, h.C.staticInt); }
-
-  // The static type of --e1?.v is the same as the static type of e1.v - 1.
-  { D d = new D(new E()); F f = --d?.v; Expect.identical(d.v, f); }
-  { D d = new D(new E()); H h = --d?.v; Expect.identical(d.v, h); }
-  //                            ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //                              ^
-  // [cfe] A value of type 'G' can't be assigned to a variable of type 'H'.
-  { D.staticE = new E(); F f = --D?.staticE; Expect.identical(D.staticE, f); }
-  { h.D.staticE = new h.E(); h.F f = --h.D?.staticE; Expect.identical(h.D.staticE, f); }
-  { D.staticE = new E(); H h = --D?.staticE; Expect.identical(D.staticE, h); }
-  //                           ^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //                                ^
-  // [cfe] A value of type 'G' can't be assigned to a variable of type 'H'.
-  { h.D.staticE = new h.E(); h.H hh = --h.D?.staticE; Expect.identical(h.D.staticE, hh); }
-  //                                  ^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //                                         ^
-  // [cfe] A value of type 'G' can't be assigned to a variable of type 'H'.
-}
diff --git a/tests/language_2/null_aware/index_this_null_aware_equals_test.dart b/tests/language_2/null_aware/index_this_null_aware_equals_test.dart
deleted file mode 100644
index 5b3a2e52b6b..00000000000
--- a/tests/language_2/null_aware/index_this_null_aware_equals_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-
-// @dart = 2.9
-class C {
-  static final Expando<int> _debugIds = new Expando<int>();
-
-  static int _nextDebugId = 0;
-
-  @override
-  String toString() {
-    int id = _debugIds[this] ??= _nextDebugId++;
-    return 'C$id';
-  }
-}
-
-main() {
-  print(C());
-}
diff --git a/tests/language_2/null_aware/invocation_runtime_1_test.dart b/tests/language_2/null_aware/invocation_runtime_1_test.dart
deleted file mode 100644
index 75b37def509..00000000000
--- a/tests/language_2/null_aware/invocation_runtime_1_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it is used to invoke a method.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-class B {}
-
-class C extends B {
-  f(callback()) => callback();
-  int g(int callback()) => callback();
-  static staticF(callback()) => callback();
-  static int staticG(int callback()) => callback();
-}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if method invocation using "?." is not
-  // implemented.  This makes status files easier to maintain.
-  nullC()?.f(null);
-
-  // o?.m(...) is equivalent to ((x) => x == null ? null : x.m(...))(o).
-  Expect.equals(null, nullC()?.f(bad()));
-
-
-  // C?.m(...) is equivalent to C.m(...).
-
-
-
-  // The static type of o?.m(...) is the same as the static type of
-  // o.m(...).
-
-
-
-
-
-
-
-
-
-  // Let T be the static type of o and let y be a fresh variable of type T.
-  // Exactly the same static warnings that would be caused by y.m(...) are also
-  // generated in the case of o?.m(...).
-
-
-
-  // '?.' can't be used to access toplevel functions in libraries imported via
-  // prefix.
-
-
-  // Nor can it be used to access the toString method on the class Type.
-
-
-}
diff --git a/tests/language_2/null_aware/invocation_runtime_2_test.dart b/tests/language_2/null_aware/invocation_runtime_2_test.dart
deleted file mode 100644
index 6bebd419b40..00000000000
--- a/tests/language_2/null_aware/invocation_runtime_2_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it is used to invoke a method.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-class B {}
-
-class C extends B {
-  f(callback()) => callback();
-  int g(int callback()) => callback();
-  static staticF(callback()) => callback();
-  static int staticG(int callback()) => callback();
-}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if method invocation using "?." is not
-  // implemented.  This makes status files easier to maintain.
-  nullC()?.f(null);
-
-  // o?.m(...) is equivalent to ((x) => x == null ? null : x.m(...))(o).
-
-  Expect.equals(1, new C()?.f(() => 1));
-
-  // C?.m(...) is equivalent to C.m(...).
-
-
-
-  // The static type of o?.m(...) is the same as the static type of
-  // o.m(...).
-
-
-
-
-
-
-
-
-
-  // Let T be the static type of o and let y be a fresh variable of type T.
-  // Exactly the same static warnings that would be caused by y.m(...) are also
-  // generated in the case of o?.m(...).
-
-
-
-  // '?.' can't be used to access toplevel functions in libraries imported via
-  // prefix.
-
-
-  // Nor can it be used to access the toString method on the class Type.
-
-
-}
diff --git a/tests/language_2/null_aware/invocation_runtime_3_test.dart b/tests/language_2/null_aware/invocation_runtime_3_test.dart
deleted file mode 100644
index de66b3ee7b1..00000000000
--- a/tests/language_2/null_aware/invocation_runtime_3_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it is used to invoke a method.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-class B {}
-
-class C extends B {
-  f(callback()) => callback();
-  int g(int callback()) => callback();
-  static staticF(callback()) => callback();
-  static int staticG(int callback()) => callback();
-}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if method invocation using "?." is not
-  // implemented.  This makes status files easier to maintain.
-  nullC()?.f(null);
-
-  // o?.m(...) is equivalent to ((x) => x == null ? null : x.m(...))(o).
-
-
-
-  // C?.m(...) is equivalent to C.m(...).
-  Expect.equals(1, C?.staticF(() => 1));
-
-
-  // The static type of o?.m(...) is the same as the static type of
-  // o.m(...).
-
-
-
-
-
-
-
-
-
-  // Let T be the static type of o and let y be a fresh variable of type T.
-  // Exactly the same static warnings that would be caused by y.m(...) are also
-  // generated in the case of o?.m(...).
-
-
-
-  // '?.' can't be used to access toplevel functions in libraries imported via
-  // prefix.
-
-
-  // Nor can it be used to access the toString method on the class Type.
-
-
-}
diff --git a/tests/language_2/null_aware/invocation_runtime_4_test.dart b/tests/language_2/null_aware/invocation_runtime_4_test.dart
deleted file mode 100644
index e4456877654..00000000000
--- a/tests/language_2/null_aware/invocation_runtime_4_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it is used to invoke a method.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-class B {}
-
-class C extends B {
-  f(callback()) => callback();
-  int g(int callback()) => callback();
-  static staticF(callback()) => callback();
-  static int staticG(int callback()) => callback();
-}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if method invocation using "?." is not
-  // implemented.  This makes status files easier to maintain.
-  nullC()?.f(null);
-
-  // o?.m(...) is equivalent to ((x) => x == null ? null : x.m(...))(o).
-
-
-
-  // C?.m(...) is equivalent to C.m(...).
-
-  Expect.equals(1, h.C?.staticF(() => 1));
-
-  // The static type of o?.m(...) is the same as the static type of
-  // o.m(...).
-
-
-
-
-
-
-
-
-
-  // Let T be the static type of o and let y be a fresh variable of type T.
-  // Exactly the same static warnings that would be caused by y.m(...) are also
-  // generated in the case of o?.m(...).
-
-
-
-  // '?.' can't be used to access toplevel functions in libraries imported via
-  // prefix.
-
-
-  // Nor can it be used to access the toString method on the class Type.
-
-
-}
diff --git a/tests/language_2/null_aware/invocation_runtime_5_test.dart b/tests/language_2/null_aware/invocation_runtime_5_test.dart
deleted file mode 100644
index 9733964709c..00000000000
--- a/tests/language_2/null_aware/invocation_runtime_5_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it is used to invoke a method.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-class B {}
-
-class C extends B {
-  f(callback()) => callback();
-  int g(int callback()) => callback();
-  static staticF(callback()) => callback();
-  static int staticG(int callback()) => callback();
-}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if method invocation using "?." is not
-  // implemented.  This makes status files easier to maintain.
-  nullC()?.f(null);
-
-  // o?.m(...) is equivalent to ((x) => x == null ? null : x.m(...))(o).
-
-
-
-  // C?.m(...) is equivalent to C.m(...).
-
-
-
-  // The static type of o?.m(...) is the same as the static type of
-  // o.m(...).
-  { int i = nullC()?.g(bad()); Expect.equals(null, i); }
-
-
-
-
-
-
-
-
-  // Let T be the static type of o and let y be a fresh variable of type T.
-  // Exactly the same static warnings that would be caused by y.m(...) are also
-  // generated in the case of o?.m(...).
-
-
-
-  // '?.' can't be used to access toplevel functions in libraries imported via
-  // prefix.
-
-
-  // Nor can it be used to access the toString method on the class Type.
-
-
-}
diff --git a/tests/language_2/null_aware/invocation_runtime_6_test.dart b/tests/language_2/null_aware/invocation_runtime_6_test.dart
deleted file mode 100644
index ce4ace509c2..00000000000
--- a/tests/language_2/null_aware/invocation_runtime_6_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it is used to invoke a method.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-class B {}
-
-class C extends B {
-  f(callback()) => callback();
-  int g(int callback()) => callback();
-  static staticF(callback()) => callback();
-  static int staticG(int callback()) => callback();
-}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if method invocation using "?." is not
-  // implemented.  This makes status files easier to maintain.
-  nullC()?.f(null);
-
-  // o?.m(...) is equivalent to ((x) => x == null ? null : x.m(...))(o).
-
-
-
-  // C?.m(...) is equivalent to C.m(...).
-
-
-
-  // The static type of o?.m(...) is the same as the static type of
-  // o.m(...).
-
-  { int i = new C()?.g(() => 1); Expect.equals(1, i); }
-
-
-
-
-
-
-
-  // Let T be the static type of o and let y be a fresh variable of type T.
-  // Exactly the same static warnings that would be caused by y.m(...) are also
-  // generated in the case of o?.m(...).
-
-
-
-  // '?.' can't be used to access toplevel functions in libraries imported via
-  // prefix.
-
-
-  // Nor can it be used to access the toString method on the class Type.
-
-
-}
diff --git a/tests/language_2/null_aware/invocation_runtime_7_test.dart b/tests/language_2/null_aware/invocation_runtime_7_test.dart
deleted file mode 100644
index 006886fb2cf..00000000000
--- a/tests/language_2/null_aware/invocation_runtime_7_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it is used to invoke a method.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-class B {}
-
-class C extends B {
-  f(callback()) => callback();
-  int g(int callback()) => callback();
-  static staticF(callback()) => callback();
-  static int staticG(int callback()) => callback();
-}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if method invocation using "?." is not
-  // implemented.  This makes status files easier to maintain.
-  nullC()?.f(null);
-
-  // o?.m(...) is equivalent to ((x) => x == null ? null : x.m(...))(o).
-
-
-
-  // C?.m(...) is equivalent to C.m(...).
-
-
-
-  // The static type of o?.m(...) is the same as the static type of
-  // o.m(...).
-
-
-
-
-  { int i = C?.staticG(() => 1); Expect.equals(1, i); }
-
-
-
-
-  // Let T be the static type of o and let y be a fresh variable of type T.
-  // Exactly the same static warnings that would be caused by y.m(...) are also
-  // generated in the case of o?.m(...).
-
-
-
-  // '?.' can't be used to access toplevel functions in libraries imported via
-  // prefix.
-
-
-  // Nor can it be used to access the toString method on the class Type.
-
-
-}
diff --git a/tests/language_2/null_aware/invocation_runtime_8_test.dart b/tests/language_2/null_aware/invocation_runtime_8_test.dart
deleted file mode 100644
index 3ee9a207bca..00000000000
--- a/tests/language_2/null_aware/invocation_runtime_8_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it is used to invoke a method.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-class B {}
-
-class C extends B {
-  f(callback()) => callback();
-  int g(int callback()) => callback();
-  static staticF(callback()) => callback();
-  static int staticG(int callback()) => callback();
-}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if method invocation using "?." is not
-  // implemented.  This makes status files easier to maintain.
-  nullC()?.f(null);
-
-  // o?.m(...) is equivalent to ((x) => x == null ? null : x.m(...))(o).
-
-
-
-  // C?.m(...) is equivalent to C.m(...).
-
-
-
-  // The static type of o?.m(...) is the same as the static type of
-  // o.m(...).
-
-
-
-
-
-  { int i = h.C?.staticG(() => 1); Expect.equals(1, i); }
-
-
-
-  // Let T be the static type of o and let y be a fresh variable of type T.
-  // Exactly the same static warnings that would be caused by y.m(...) are also
-  // generated in the case of o?.m(...).
-
-
-
-  // '?.' can't be used to access toplevel functions in libraries imported via
-  // prefix.
-
-
-  // Nor can it be used to access the toString method on the class Type.
-
-
-}
diff --git a/tests/language_2/null_aware/invocation_runtime_test.dart b/tests/language_2/null_aware/invocation_runtime_test.dart
deleted file mode 100644
index 90456375d51..00000000000
--- a/tests/language_2/null_aware/invocation_runtime_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify semantics of the ?. operator when it is used to invoke a method.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-class B {}
-
-class C extends B {
-  f(callback()) => callback();
-  int g(int callback()) => callback();
-  static staticF(callback()) => callback();
-  static int staticG(int callback()) => callback();
-}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if method invocation using "?." is not
-  // implemented.  This makes status files easier to maintain.
-  nullC()?.f(null);
-
-  // o?.m(...) is equivalent to ((x) => x == null ? null : x.m(...))(o).
-
-
-
-  // C?.m(...) is equivalent to C.m(...).
-
-
-
-  // The static type of o?.m(...) is the same as the static type of
-  // o.m(...).
-
-
-
-
-
-
-
-
-
-  // Let T be the static type of o and let y be a fresh variable of type T.
-  // Exactly the same static warnings that would be caused by y.m(...) are also
-  // generated in the case of o?.m(...).
-
-
-
-  // '?.' can't be used to access toplevel functions in libraries imported via
-  // prefix.
-
-
-  // Nor can it be used to access the toString method on the class Type.
-
-
-}
diff --git a/tests/language_2/null_aware/invocation_test.dart b/tests/language_2/null_aware/invocation_test.dart
deleted file mode 100644
index eae3b763dea..00000000000
--- a/tests/language_2/null_aware/invocation_test.dart
+++ /dev/null
@@ -1,94 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify semantics of the ?. operator when it is used to invoke a method.
-
-import "package:expect/expect.dart";
-import "conditional_access_helper.dart" as h;
-
-bad() {
-  Expect.fail('Should not be executed');
-}
-
-class B {}
-
-class C extends B {
-  f(callback()) => callback();
-  int g(int callback()) => callback();
-  static staticF(callback()) => callback();
-  static int staticG(int callback()) => callback();
-}
-
-C nullC() => null;
-
-main() {
-  // Make sure the "none" test fails if method invocation using "?." is not
-  // implemented.  This makes status files easier to maintain.
-  nullC()?.f(null);
-
-  // o?.m(...) is equivalent to ((x) => x == null ? null : x.m(...))(o).
-  Expect.equals(null, nullC()?.f(bad()));
-  Expect.equals(1, new C()?.f(() => 1));
-
-  // C?.m(...) is equivalent to C.m(...).
-  Expect.equals(1, C?.staticF(() => 1));
-  Expect.equals(1, h.C?.staticF(() => 1));
-
-  // The static type of o?.m(...) is the same as the static type of
-  // o.m(...).
-  { int i = nullC()?.g(bad()); Expect.equals(null, i); }
-  { int i = new C()?.g(() => 1); Expect.equals(1, i); }
-  { String s = nullC()?.g(bad()); Expect.equals(null, s); }
-  //           ^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  // [cfe] A value of type 'int' can't be assigned to a variable of type 'String'.
-  { String s = new C()?.g(() => null); Expect.equals(null, s); }
-  //           ^^^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //               ^
-  // [cfe] A value of type 'int' can't be assigned to a variable of type 'String'.
-  { int i = C?.staticG(() => 1); Expect.equals(1, i); }
-  { int i = h.C?.staticG(() => 1); Expect.equals(1, i); }
-  { String s = C?.staticG(() => null); Expect.equals(null, s); }
-  //           ^^^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //              ^
-  // [cfe] A value of type 'int' can't be assigned to a variable of type 'String'.
-  { String s = h.C?.staticG(() => null); Expect.equals(null, s); }
-  //           ^^^^^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //                ^
-  // [cfe] A value of type 'int' can't be assigned to a variable of type 'String'.
-
-  // Let T be the static type of o and let y be a fresh variable of type T.
-  // Exactly the same static warnings that would be caused by y.m(...) are also
-  // generated in the case of o?.m(...).
-  { B b = new C(); Expect.equals(1, b?.f(() => 1)); }
-  //                                   ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_METHOD
-  // [cfe] The method 'f' isn't defined for the class 'B'.
-  { int i = 1; Expect.equals(null, nullC()?.f(i)); }
-  //                                          ^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] The argument type 'int' can't be assigned to the parameter type 'dynamic Function()'.
-
-  // '?.' can't be used to access toplevel functions in libraries imported via
-  // prefix.
-  h?.topLevelFunction();
-//^
-// [analyzer] COMPILE_TIME_ERROR.PREFIX_IDENTIFIER_NOT_FOLLOWED_BY_DOT
-// [cfe] A prefix can't be used with null-aware operators.
-
-  // Nor can it be used to access the toString method on the class Type.
-  Expect.throwsNoSuchMethodError(() => C?.toString());
-  //                                      ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_METHOD
-  // [cfe] Method not found: 'C.toString'.
-  Expect.throwsNoSuchMethodError(() => h.C?.toString());
-  //                                        ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_METHOD
-  // [cfe] Method not found: 'C.toString'.
-}
diff --git a/tests/language_2/null_aware/null_aware_index_on_null_error_test.dart b/tests/language_2/null_aware/null_aware_index_on_null_error_test.dart
deleted file mode 100644
index 407d5dbff13..00000000000
--- a/tests/language_2/null_aware/null_aware_index_on_null_error_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  null?[0];
-  //  ^
-  // [analyzer] SYNTACTIC_ERROR.EXPERIMENT_NOT_ENABLED
-  //   ^
-  // [cfe] Null safety is disabled for this library.
-  // [cfe] The operator '[]' isn't defined for the class 'Null'.
-}
diff --git a/tests/language_2/null_aware/opt_test.dart b/tests/language_2/null_aware/opt_test.dart
deleted file mode 100644
index 9993c040783..00000000000
--- a/tests/language_2/null_aware/opt_test.dart
+++ /dev/null
@@ -1,104 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// VMOptions=--optimization_counter_threshold=5
-//
-// Basic null-aware operator test that invokes the optimizing compiler.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C {
-  C(this.f);
-  var f;
-  m(a) => a;
-}
-
-bomb() {
-  Expect.fail('Should not be executed');
-  return 100;
-}
-
-getNull() => null;
-
-test() {
-  var c;
-  var d = new C(5);
-  Expect.equals(null, c?.m(bomb()));
-  Expect.equals(null, getNull()?.anything(bomb()));
-  Expect.equals(1, d?.m(1));
-
-  Expect.equals(1, new C(1)?.f);
-  Expect.equals(null, c?.v);
-  Expect.equals(10, c ?? 10);
-  Expect.equals(d, d ?? bomb());
-  Expect.equals(
-      3,
-      [
-        [3]
-      ]?.expand((i) => i).toList()[0]);
-  Expect.equals(null, (null as List<List<int>>)?.expand((i) => i)?.toList());
-
-  var e;
-  // The assignment to e is not executed since d != null.
-  d ??= e ??= new C(100);
-  Expect.equals(null, e);
-  e ??= new C(100);
-  Expect.equals(100, e?.f);
-  e?.f ??= 200;
-  Expect.equals(100, e?.f);
-
-  e.f = null;
-  e?.f ??= 200;
-  Expect.equals(200, e?.f);
-
-  c?.f ??= 400;
-  Expect.equals(null, c?.f);
-  Expect.equals(null, c?.f++);
-  e?.f++;
-  Expect.equals(201, e.f);
-
-  var x = 5 ?? bomb();
-}
-
-// Check that instructions without result do not crash.
-test2() {
-  var c;
-  c?.v;
-  c?.m(bomb());
-}
-
-class Bar {
-  String s;
-}
-
-class Foo {
-  Bar _bar;
-  String str;
-
-  Foo(this._bar) : str = _bar?.s;
-}
-
-// Check that ?? isn't incorrectly optimized as non-nullable
-// (DDC regression test)
-test3() {
-  List n = null;
-  var func = n?.add;
-  var result = func ?? 1;
-  Expect.equals(result, 1);
-
-  String x = null;
-  Expect.equals(x?.split(',') ?? 'hello', 'hello');
-}
-
-main() {
-  for (int i = 0; i < 10; i++) {
-    test();
-    test2();
-    test3();
-  }
-
-  Expect.equals(null, new Foo(new Bar()).str);
-}
diff --git a/tests/language_2/number/constant_folding1_test.dart b/tests/language_2/number/constant_folding1_test.dart
deleted file mode 100644
index 4af9bdca8bd..00000000000
--- a/tests/language_2/number/constant_folding1_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// On frogsh constant folded hex literals of large magnitude were truncated on
-// constant folding - Issue 636 is 'fixed', remaining concerns at Issue 638.
-
-highDigitTruncationTest() {
-  Expect.equals(0x12345678A, 0x123456789 + 1);
-
-  // in 32 bits this is 0xF0000000 which is negative.
-  Expect.isTrue(0x1f0000000 > 0);
-
-  Expect.equals(0xf0, 0xf * 16);
-  Expect.equals(0xff0, 0xff * 16);
-  Expect.equals(0xfff0, 0xfff * 16);
-  Expect.equals(0xffff0, 0xffff * 16);
-  Expect.equals(0xfffff0, 0xfffff * 16);
-  Expect.equals(0xffffff0, 0xffffff * 16);
-  Expect.equals(0xfffffff0, 0xfffffff * 16);
-  Expect.equals(0xffffffff0, 0xffffffff * 16);
-  Expect.equals(0xfffffffff0, 0xfffffffff * 16);
-  Expect.equals(0xffffffffff0, 0xffffffffff * 16);
-}
-
-main() {
-  highDigitTruncationTest();
-}
diff --git a/tests/language_2/number/identifier_runtime_test.dart b/tests/language_2/number/identifier_runtime_test.dart
deleted file mode 100644
index 8e81d21940b..00000000000
--- a/tests/language_2/number/identifier_runtime_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-main() {
-  // Integer literals.
-  Expect.isTrue(2 is int);
-  Expect.equals(2, 2 as int);
-  Expect.isTrue(-2 is int);
-  Expect.equals(-2, -2 as int);
-  Expect.isTrue(0x10 is int);
-  Expect.isTrue(-0x10 is int);
-  // "a" will be part of hex literal, the following "s" is an error.
-
-
-
-  // Double literals.
-  Expect.isTrue(2.0 is double);
-  Expect.equals(2.0, 2.0 as double);
-  Expect.isTrue(-2.0 is double);
-  Expect.equals(-2.0, -2.0 as double);
-  Expect.isTrue(.2 is double);
-  Expect.equals(0.2, .2 as double);
-  Expect.isTrue(1e2 is double);
-  Expect.equals(1e2, 1e2 as double);
-  Expect.isTrue(1e-2 is double);
-  Expect.equals(1e-2, 1e-2 as double);
-  Expect.isTrue(1e+2 is double);
-  Expect.equals(1e+2, 1e+2 as double);
-
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/number/identifier_test.dart b/tests/language_2/number/identifier_test.dart
deleted file mode 100644
index 5efff7e70d9..00000000000
--- a/tests/language_2/number/identifier_test.dart
+++ /dev/null
@@ -1,115 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  // Integer literals.
-  Expect.isTrue(2 is int);
-  //                 ^^^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_TEST_WITH_NON_TYPE
-  // [cfe] Local variable 'int' can't be referenced before it is declared.
-  Expect.equals(2, 2 as int);
-  //                    ^^^
-  // [analyzer] COMPILE_TIME_ERROR.CAST_TO_NON_TYPE
-  // [cfe] Local variable 'int' can't be referenced before it is declared.
-  Expect.isTrue(-2 is int);
-  //                  ^^^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_TEST_WITH_NON_TYPE
-  // [cfe] Local variable 'int' can't be referenced before it is declared.
-  Expect.equals(-2, -2 as int);
-  //                      ^^^
-  // [analyzer] COMPILE_TIME_ERROR.CAST_TO_NON_TYPE
-  // [cfe] Local variable 'int' can't be referenced before it is declared.
-  Expect.isTrue(0x10 is int);
-  //                    ^^^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_TEST_WITH_NON_TYPE
-  // [cfe] Local variable 'int' can't be referenced before it is declared.
-  Expect.isTrue(-0x10 is int);
-  //                     ^^^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_TEST_WITH_NON_TYPE
-  // [cfe] Local variable 'int' can't be referenced before it is declared.
-
-  // "a" will be part of hex literal, the following "s" is an error.
-  0x10as int;
-//^^^^^
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-// [cfe] Expected ';' after this.
-//     ^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_CLASS
-// [cfe] 's' isn't a type.
-  0x;
-//^
-// [cfe] A hex digit (0-9 or A-F) must follow '0x'.
-// ^
-// [analyzer] SYNTACTIC_ERROR.MISSING_HEX_DIGIT
-
-  // Double literals.
-  Expect.isTrue(2.0 is double);
-  Expect.equals(2.0, 2.0 as double);
-  Expect.isTrue(-2.0 is double);
-  Expect.equals(-2.0, -2.0 as double);
-  Expect.isTrue(.2 is double);
-  Expect.equals(0.2, .2 as double);
-  Expect.isTrue(1e2 is double);
-  Expect.equals(1e2, 1e2 as double);
-  Expect.isTrue(1e-2 is double);
-  Expect.equals(1e-2, 1e-2 as double);
-  Expect.isTrue(1e+2 is double);
-  Expect.equals(1e+2, 1e+2 as double);
-  Expect.throwsNoSuchMethodError(() => 1.e+2);
-  //                                     ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'e' isn't defined for the class 'int'.
-  1d;
-//^
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-// [cfe] Expected ';' after this.
-// ^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-// [cfe] Undefined name 'd'.
-  1D;
-//^
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-// [cfe] Expected ';' after this.
-// ^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-// [cfe] Undefined name 'D'.
-  Expect.throwsNoSuchMethodError(() => 1.d+2);
-  //                                     ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'd' isn't defined for the class 'int'.
-  Expect.throwsNoSuchMethodError(() => 1.D+2);
-  //                                     ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'D' isn't defined for the class 'int'.
-  1.1d;
-//^^^
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-// [cfe] Expected ';' after this.
-//   ^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-// [cfe] Undefined name 'd'.
-  1.1D;
-//^^^
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-// [cfe] Expected ';' after this.
-//   ^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-// [cfe] Undefined name 'D'.
-  1e;
-//^
-// [cfe] Numbers in exponential notation should always contain an exponent (an integer number with an optional sign).
-// ^
-// [analyzer] SYNTACTIC_ERROR.MISSING_DIGIT
-  1x;
-//^
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-// [cfe] Expected ';' after this.
-// ^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-// [cfe] Undefined name 'x'.
-}
diff --git a/tests/language_2/number/identity2_test.dart b/tests/language_2/number/identity2_test.dart
deleted file mode 100644
index 2b8115884df..00000000000
--- a/tests/language_2/number/identity2_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing params.
-//
-// Contains test that is failing on dart2js. Merge this test with
-// 'number_identity_test.dart' once fixed.
-// VMOptions=--optimization-counter-threshold=10
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:typed_data';
-
-double uint64toDouble(int i) {
-  var buffer = new Uint8List(8).buffer;
-  var bdata = new ByteData.view(buffer);
-  bdata.setUint64(0, i);
-  return bdata.getFloat64(0);
-}
-
-testNumberIdentity() {
-  var a = double.nan;
-  var b = a + 0.0;
-  Expect.isTrue(identical(a, b));
-
-  a = uint64toDouble((1 << 64) - 1);
-  b = uint64toDouble((1 << 64) - 2);
-  Expect.isFalse(identical(a, b));
-
-  a = 0.0 / 0.0;
-  b = 1.0 / 0.0;
-  Expect.isFalse(identical(a, b));
-}
-
-main() {
-  for (int i = 0; i < 20; i++) {
-    testNumberIdentity();
-  }
-}
diff --git a/tests/language_2/number/identity_test.dart b/tests/language_2/number/identity_test.dart
deleted file mode 100644
index a8486701a6e..00000000000
--- a/tests/language_2/number/identity_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing params.
-// VMOptions=--optimization-counter-threshold=10
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  for (int i = 0; i < 20; i++) testNumberIdentity();
-}
-
-testNumberIdentity() {
-  const int smi = 8;
-  const int mint = 9223372036854775806;
-  const double dbl = 8.0;
-
-  var a = smi;
-  var b = a + 0;
-  Expect.isTrue(identical(a, b));
-  Expect.isFalse(identical(b, mint));
-
-  a = mint;
-  b = a + 0;
-  Expect.isTrue(identical(a, b));
-  Expect.isFalse(identical(b, smi));
-  Expect.isFalse(identical(b, dbl));
-
-  var a2 = dbl;
-  var b2 = a2 + 0.0;
-  Expect.isTrue(identical(a2, b2));
-  Expect.isFalse(identical(b2, mint));
-}
diff --git a/tests/language_2/number/infinity_test.dart b/tests/language_2/number/infinity_test.dart
deleted file mode 100644
index 6c0a20c3660..00000000000
--- a/tests/language_2/number/infinity_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-int inscrutable(int x) => x == 0 ? 0 : x | inscrutable(x & (x - 1));
-
-main() {
-  var things = [0, double.infinity, double.negativeInfinity];
-  var first = things[1];
-  var second = things[2];
-  Expect.isFalse(first is int);
-  Expect.isFalse(second is int);
-  Expect.isTrue(first is double);
-  Expect.isTrue(second is double);
-}
diff --git a/tests/language_2/number/int2_test.dart b/tests/language_2/number/int2_test.dart
deleted file mode 100644
index 3cf6e3d978d..00000000000
--- a/tests/language_2/number/int2_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to throw NoSuchMethod if an
-// int did not fit in the SMI range.
-
-import "package:expect/expect.dart";
-
-main() {
-  // dart2js knows that this list is int or null.
-  var b = [null, 9223372036854775806];
-
-  // Use b[1] twice to ensure dart2js realizes it's the same value
-  // after type propagation.
-
-  // dart2js will inline an ArgumentError check on b[a].
-  42 + b[1];
-  // dart2js will inline a NoSuchMethodError check.
-  var c = b[1] & 1;
-  Expect.equals(0, c);
-}
diff --git a/tests/language_2/number/int64_literal_runtime_10_test.dart b/tests/language_2/number/int64_literal_runtime_10_test.dart
deleted file mode 100644
index 7e5ddd0528b..00000000000
--- a/tests/language_2/number/int64_literal_runtime_10_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details.  All rights reserved.  Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-const String realMaxInt64Value = '9223372036854775807';
-const String realMinInt64Value = '-9223372036854775808';
-
-const int i21 = 2097152;
-
-main() {
-  int minInt64Value = -1 * i21 * i21 * i21;
-
-
-
-
-
-
-
-  Expect.equals('$minInt64Value', realMinInt64Value);
-  Expect.equals('${minInt64Value - 1}', realMaxInt64Value);
-
-  int maxInt64Value = 1 * i21 * i21 * i21 - 1;
-
-
-
-
-
-
-  maxInt64Value = -0x8000000000000000 - 1;
-
-
-
-  Expect.equals('$maxInt64Value', realMaxInt64Value);
-  Expect.equals('${maxInt64Value + 1}', realMinInt64Value);
-}
diff --git a/tests/language_2/number/int64_literal_runtime_11_test.dart b/tests/language_2/number/int64_literal_runtime_11_test.dart
deleted file mode 100644
index d57af66e309..00000000000
--- a/tests/language_2/number/int64_literal_runtime_11_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details.  All rights reserved.  Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-const String realMaxInt64Value = '9223372036854775807';
-const String realMinInt64Value = '-9223372036854775808';
-
-const int i21 = 2097152;
-
-main() {
-  int minInt64Value = -1 * i21 * i21 * i21;
-
-
-
-
-
-
-
-  Expect.equals('$minInt64Value', realMinInt64Value);
-  Expect.equals('${minInt64Value - 1}', realMaxInt64Value);
-
-  int maxInt64Value = 1 * i21 * i21 * i21 - 1;
-
-
-
-
-
-
-
-
-  maxInt64Value = -(0x8000000000000001);
-
-  Expect.equals('$maxInt64Value', realMaxInt64Value);
-  Expect.equals('${maxInt64Value + 1}', realMinInt64Value);
-}
diff --git a/tests/language_2/number/int64_literal_runtime_1_test.dart b/tests/language_2/number/int64_literal_runtime_1_test.dart
deleted file mode 100644
index 8e6c83b331c..00000000000
--- a/tests/language_2/number/int64_literal_runtime_1_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details.  All rights reserved.  Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-const String realMaxInt64Value = '9223372036854775807';
-const String realMinInt64Value = '-9223372036854775808';
-
-const int i21 = 2097152;
-
-main() {
-  int minInt64Value = -1 * i21 * i21 * i21;
-  minInt64Value = -9223372036854775807 - 1;
-
-
-
-
-
-
-  Expect.equals('$minInt64Value', realMinInt64Value);
-  Expect.equals('${minInt64Value - 1}', realMaxInt64Value);
-
-  int maxInt64Value = 1 * i21 * i21 * i21 - 1;
-
-
-
-
-
-
-
-
-
-
-  Expect.equals('$maxInt64Value', realMaxInt64Value);
-  Expect.equals('${maxInt64Value + 1}', realMinInt64Value);
-}
diff --git a/tests/language_2/number/int64_literal_runtime_2_test.dart b/tests/language_2/number/int64_literal_runtime_2_test.dart
deleted file mode 100644
index d4c17e9fda9..00000000000
--- a/tests/language_2/number/int64_literal_runtime_2_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details.  All rights reserved.  Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-const String realMaxInt64Value = '9223372036854775807';
-const String realMinInt64Value = '-9223372036854775808';
-
-const int i21 = 2097152;
-
-main() {
-  int minInt64Value = -1 * i21 * i21 * i21;
-
-  minInt64Value = -9223372036854775808;
-
-
-
-
-
-  Expect.equals('$minInt64Value', realMinInt64Value);
-  Expect.equals('${minInt64Value - 1}', realMaxInt64Value);
-
-  int maxInt64Value = 1 * i21 * i21 * i21 - 1;
-
-
-
-
-
-
-
-
-
-
-  Expect.equals('$maxInt64Value', realMaxInt64Value);
-  Expect.equals('${maxInt64Value + 1}', realMinInt64Value);
-}
diff --git a/tests/language_2/number/int64_literal_runtime_3_test.dart b/tests/language_2/number/int64_literal_runtime_3_test.dart
deleted file mode 100644
index 5766d276922..00000000000
--- a/tests/language_2/number/int64_literal_runtime_3_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details.  All rights reserved.  Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-const String realMaxInt64Value = '9223372036854775807';
-const String realMinInt64Value = '-9223372036854775808';
-
-const int i21 = 2097152;
-
-main() {
-  int minInt64Value = -1 * i21 * i21 * i21;
-
-
-
-  minInt64Value = -(0x8000000000000000);
-
-
-
-  Expect.equals('$minInt64Value', realMinInt64Value);
-  Expect.equals('${minInt64Value - 1}', realMaxInt64Value);
-
-  int maxInt64Value = 1 * i21 * i21 * i21 - 1;
-
-
-
-
-
-
-
-
-
-
-  Expect.equals('$maxInt64Value', realMaxInt64Value);
-  Expect.equals('${maxInt64Value + 1}', realMinInt64Value);
-}
diff --git a/tests/language_2/number/int64_literal_runtime_4_test.dart b/tests/language_2/number/int64_literal_runtime_4_test.dart
deleted file mode 100644
index 258e07027a4..00000000000
--- a/tests/language_2/number/int64_literal_runtime_4_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details.  All rights reserved.  Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-const String realMaxInt64Value = '9223372036854775807';
-const String realMinInt64Value = '-9223372036854775808';
-
-const int i21 = 2097152;
-
-main() {
-  int minInt64Value = -1 * i21 * i21 * i21;
-
-
-
-
-  minInt64Value = 0x8000000000000000;
-
-
-  Expect.equals('$minInt64Value', realMinInt64Value);
-  Expect.equals('${minInt64Value - 1}', realMaxInt64Value);
-
-  int maxInt64Value = 1 * i21 * i21 * i21 - 1;
-
-
-
-
-
-
-
-
-
-
-  Expect.equals('$maxInt64Value', realMaxInt64Value);
-  Expect.equals('${maxInt64Value + 1}', realMinInt64Value);
-}
diff --git a/tests/language_2/number/int64_literal_runtime_5_test.dart b/tests/language_2/number/int64_literal_runtime_5_test.dart
deleted file mode 100644
index 0bf8cdb47c8..00000000000
--- a/tests/language_2/number/int64_literal_runtime_5_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details.  All rights reserved.  Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-const String realMaxInt64Value = '9223372036854775807';
-const String realMinInt64Value = '-9223372036854775808';
-
-const int i21 = 2097152;
-
-main() {
-  int minInt64Value = -1 * i21 * i21 * i21;
-
-
-
-
-
-  minInt64Value = -0x8000000000000000;
-
-  Expect.equals('$minInt64Value', realMinInt64Value);
-  Expect.equals('${minInt64Value - 1}', realMaxInt64Value);
-
-  int maxInt64Value = 1 * i21 * i21 * i21 - 1;
-
-
-
-
-
-
-
-
-
-
-  Expect.equals('$maxInt64Value', realMaxInt64Value);
-  Expect.equals('${maxInt64Value + 1}', realMinInt64Value);
-}
diff --git a/tests/language_2/number/int64_literal_runtime_6_test.dart b/tests/language_2/number/int64_literal_runtime_6_test.dart
deleted file mode 100644
index 4b2d69888ba..00000000000
--- a/tests/language_2/number/int64_literal_runtime_6_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details.  All rights reserved.  Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-const String realMaxInt64Value = '9223372036854775807';
-const String realMinInt64Value = '-9223372036854775808';
-
-const int i21 = 2097152;
-
-main() {
-  int minInt64Value = -1 * i21 * i21 * i21;
-
-
-
-
-
-
-
-  Expect.equals('$minInt64Value', realMinInt64Value);
-  Expect.equals('${minInt64Value - 1}', realMaxInt64Value);
-
-  int maxInt64Value = 1 * i21 * i21 * i21 - 1;
-  maxInt64Value = 9223372036854775807;
-
-
-
-
-
-
-
-
-
-  Expect.equals('$maxInt64Value', realMaxInt64Value);
-  Expect.equals('${maxInt64Value + 1}', realMinInt64Value);
-}
diff --git a/tests/language_2/number/int64_literal_runtime_7_test.dart b/tests/language_2/number/int64_literal_runtime_7_test.dart
deleted file mode 100644
index 4c17a63c8c4..00000000000
--- a/tests/language_2/number/int64_literal_runtime_7_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details.  All rights reserved.  Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-const String realMaxInt64Value = '9223372036854775807';
-const String realMinInt64Value = '-9223372036854775808';
-
-const int i21 = 2097152;
-
-main() {
-  int minInt64Value = -1 * i21 * i21 * i21;
-
-
-
-
-
-
-
-  Expect.equals('$minInt64Value', realMinInt64Value);
-  Expect.equals('${minInt64Value - 1}', realMaxInt64Value);
-
-  int maxInt64Value = 1 * i21 * i21 * i21 - 1;
-
-  maxInt64Value = 9223372036854775807;
-
-
-
-
-
-
-
-
-  Expect.equals('$maxInt64Value', realMaxInt64Value);
-  Expect.equals('${maxInt64Value + 1}', realMinInt64Value);
-}
diff --git a/tests/language_2/number/int64_literal_runtime_8_test.dart b/tests/language_2/number/int64_literal_runtime_8_test.dart
deleted file mode 100644
index d1179a6c43d..00000000000
--- a/tests/language_2/number/int64_literal_runtime_8_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details.  All rights reserved.  Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-const String realMaxInt64Value = '9223372036854775807';
-const String realMinInt64Value = '-9223372036854775808';
-
-const int i21 = 2097152;
-
-main() {
-  int minInt64Value = -1 * i21 * i21 * i21;
-
-
-
-
-
-
-
-  Expect.equals('$minInt64Value', realMinInt64Value);
-  Expect.equals('${minInt64Value - 1}', realMaxInt64Value);
-
-  int maxInt64Value = 1 * i21 * i21 * i21 - 1;
-
-
-
-  maxInt64Value = -9223372036854775808 - 1;
-
-
-
-
-
-
-  Expect.equals('$maxInt64Value', realMaxInt64Value);
-  Expect.equals('${maxInt64Value + 1}', realMinInt64Value);
-}
diff --git a/tests/language_2/number/int64_literal_runtime_9_test.dart b/tests/language_2/number/int64_literal_runtime_9_test.dart
deleted file mode 100644
index 17f73b78aa0..00000000000
--- a/tests/language_2/number/int64_literal_runtime_9_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details.  All rights reserved.  Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-const String realMaxInt64Value = '9223372036854775807';
-const String realMinInt64Value = '-9223372036854775808';
-
-const int i21 = 2097152;
-
-main() {
-  int minInt64Value = -1 * i21 * i21 * i21;
-
-
-
-
-
-
-
-  Expect.equals('$minInt64Value', realMinInt64Value);
-  Expect.equals('${minInt64Value - 1}', realMaxInt64Value);
-
-  int maxInt64Value = 1 * i21 * i21 * i21 - 1;
-
-
-
-
-
-  maxInt64Value = 0x8000000000000000 - 1;
-
-
-
-
-  Expect.equals('$maxInt64Value', realMaxInt64Value);
-  Expect.equals('${maxInt64Value + 1}', realMinInt64Value);
-}
diff --git a/tests/language_2/number/int64_literal_runtime_test.dart b/tests/language_2/number/int64_literal_runtime_test.dart
deleted file mode 100644
index 8518390ed86..00000000000
--- a/tests/language_2/number/int64_literal_runtime_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details.  All rights reserved.  Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-const String realMaxInt64Value = '9223372036854775807';
-const String realMinInt64Value = '-9223372036854775808';
-
-const int i21 = 2097152;
-
-main() {
-  int minInt64Value = -1 * i21 * i21 * i21;
-
-
-
-
-
-
-
-  Expect.equals('$minInt64Value', realMinInt64Value);
-  Expect.equals('${minInt64Value - 1}', realMaxInt64Value);
-
-  int maxInt64Value = 1 * i21 * i21 * i21 - 1;
-
-
-
-
-
-
-
-
-
-
-  Expect.equals('$maxInt64Value', realMaxInt64Value);
-  Expect.equals('${maxInt64Value + 1}', realMinInt64Value);
-}
diff --git a/tests/language_2/number/int64_literal_test.dart b/tests/language_2/number/int64_literal_test.dart
deleted file mode 100644
index fb7dcb64512..00000000000
--- a/tests/language_2/number/int64_literal_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details.  All rights reserved.  Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-const String realMaxInt64Value = '9223372036854775807';
-const String realMinInt64Value = '-9223372036854775808';
-
-const int i21 = 2097152;
-
-main() {
-  int minInt64Value = -1 * i21 * i21 * i21;
-  minInt64Value = -9223372036854775807 - 1;
-  minInt64Value = -9223372036854775808;
-  minInt64Value = -(9223372036854775808);
-  //                ^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INTEGER_LITERAL_OUT_OF_RANGE
-  // [cfe] The integer literal 9223372036854775808 can't be represented in 64 bits.
-  minInt64Value = -(0x8000000000000000);
-  minInt64Value = 0x8000000000000000;
-  minInt64Value = -0x8000000000000000;
-
-  Expect.equals('$minInt64Value', realMinInt64Value);
-  Expect.equals('${minInt64Value - 1}', realMaxInt64Value);
-
-  int maxInt64Value = 1 * i21 * i21 * i21 - 1;
-  maxInt64Value = 9223372036854775807;
-  maxInt64Value = 9223372036854775807;
-  maxInt64Value = 9223372036854775808 - 1;
-  //              ^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INTEGER_LITERAL_OUT_OF_RANGE
-  // [cfe] The integer literal 9223372036854775808 can't be represented in 64 bits.
-  maxInt64Value = -9223372036854775808 - 1;
-  maxInt64Value = -9223372036854775809;
-  //               ^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INTEGER_LITERAL_OUT_OF_RANGE
-  // [cfe] The integer literal 9223372036854775809 can't be represented in 64 bits.
-  maxInt64Value = 0x8000000000000000 - 1;
-  maxInt64Value = -0x8000000000000000 - 1;
-  maxInt64Value = -0x8000000000000001;
-  //               ^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INTEGER_LITERAL_OUT_OF_RANGE
-  // [cfe] The integer literal 0x8000000000000001 can't be represented in 64 bits.
-  maxInt64Value = -(0x8000000000000001);
-
-  Expect.equals('$maxInt64Value', realMaxInt64Value);
-  Expect.equals('${maxInt64Value + 1}', realMinInt64Value);
-}
diff --git a/tests/language_2/number/int_test.dart b/tests/language_2/number/int_test.dart
deleted file mode 100644
index 8184eb34ba3..00000000000
--- a/tests/language_2/number/int_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test basic integer operations.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  test(literal, number) {
-    Expect.equals(literal, number);
-    Expect.identical(literal, number);
-  }
-
-  test(0, 0 + 0);
-  test(1, 1 + 0);
-  test(2, 1 + 1);
-  test(3, -1 + 4);
-  test(3, 4 + -1);
-
-  test(-0, -(0));
-  test(-3, -(3));
-
-  test(1, 1 - 0);
-  test(0, 1 - 1);
-  test(1, 2 - 1);
-  test(2, 4 - 2);
-  test(-2, 2 - 4);
-
-  test(0, 3 * 0);
-  test(0, 0 * 3);
-  test(1, 1 * 1);
-  test(5, 5 * 1);
-  test(15, 3 * 5);
-  test(-1, 1 * -1);
-  test(-15, -5 * 3);
-  test(15, -5 * -3);
-
-  test(1, 2 ~/ 2);
-  test(2, 2 ~/ 1);
-  test(2, 4 ~/ 2);
-  test(2, 5 ~/ 2);
-  test(-2, -5 ~/ 2);
-  test(-2, -4 ~/ 2);
-  test(-2, 5 ~/ -2);
-  test(-2, 4 ~/ -2);
-
-  test(3, 7 % 4);
-  test(2, 9 % 7);
-  test(2, -7 % 9);
-  test(7, 7 % -9);
-  test(7, 7 % 9);
-  test(2, -7 % -9);
-
-  test(3, (7).remainder(4));
-  test(2, (9).remainder(7));
-  test(-7, (-7).remainder(9));
-  test(7, (7).remainder(-9));
-  test(7, (7).remainder(9));
-  test(-7, (-7).remainder(-9));
-}
diff --git a/tests/language_2/number/numbers_test.dart b/tests/language_2/number/numbers_test.dart
deleted file mode 100644
index f10554076b2..00000000000
--- a/tests/language_2/number/numbers_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test number types.
-
-// @dart = 2.9
-
-library NumbersTest.dart;
-
-import "package:expect/expect.dart";
-
-class NumbersTest {
-  static double testMain() {
-    var one = 1;
-    Expect.equals(true, one is Object);
-    Expect.equals(true, one is num);
-    Expect.equals(true, one is int);
-    Expect.equals(false, one is double);
-
-    var two = 2.0;
-    Expect.equals(true, two is Object);
-    Expect.equals(true, two is num);
-    Expect.equals(false, two is int);
-    Expect.equals(true, two is double);
-
-    var result = one + two;
-    Expect.equals(true, result is Object);
-    Expect.equals(true, result is num);
-    Expect.equals(false, result is int);
-    Expect.equals(true, result is double);
-
-    Expect.equals(3.0, result);
-    return result;
-  }
-}
-
-main() {
-  NumbersTest.testMain();
-}
diff --git a/tests/language_2/number/syntax_test.dart b/tests/language_2/number/syntax_test.dart
deleted file mode 100644
index 42115c77bdc..00000000000
--- a/tests/language_2/number/syntax_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class NumberSyntaxTest {
-  static void testMain() {
-    testShortDoubleSyntax();
-    testDotSelectorSyntax();
-  }
-
-  static void testShortDoubleSyntax() {
-    Expect.equals(0.0, .0);
-    Expect.equals(0.5, .5);
-    Expect.equals(0.1234, .1234);
-  }
-
-  static void testDotSelectorSyntax() {
-    // Integers.
-    Expect.equals('0', 0.toString());
-    Expect.equals('1', 1.toString());
-    Expect.equals('123', 123.toString());
-
-    Expect.equals('0', 0.toString());
-    Expect.equals('1', 1.toString());
-    Expect.equals('123', 123.toString());
-
-    Expect.equals('0', 0.toString());
-    Expect.equals('1', 1.toString());
-    Expect.equals('123', 123.toString());
-
-    // Doubles.
-    Expect.equals((0.0).toString(), 0.0.toString());
-    Expect.equals((0.1).toString(), .1.toString());
-    Expect.equals((1.1).toString(), 1.1.toString());
-    Expect.equals((123.4).toString(), 123.4.toString());
-
-    Expect.equals((0.0).toString(), 0.0.toString());
-    Expect.equals((0.1).toString(), .1.toString());
-    Expect.equals((1.1).toString(), 1.1.toString());
-    Expect.equals((123.4).toString(), 123.4.toString());
-
-    Expect.equals((0.0).toString(), 0.0.toString());
-    Expect.equals((0.1).toString(), .1.toString());
-    Expect.equals((1.1).toString(), 1.1.toString());
-    Expect.equals((123.4).toString(), 123.4.toString());
-
-    // Exponent notation.
-    Expect.equals((0e0).toString(), 0e0.toString());
-    Expect.equals((1e+1).toString(), 1e+1.toString());
-    Expect.equals((2.1e-34).toString(), 2.1e-34.toString());
-  }
-}
-
-main() {
-  NumberSyntaxTest.testMain();
-}
diff --git a/tests/language_2/number/web_int_literals_runtime_test.dart b/tests/language_2/number/web_int_literals_runtime_test.dart
deleted file mode 100644
index 03414166033..00000000000
--- a/tests/language_2/number/web_int_literals_runtime_test.dart
+++ /dev/null
@@ -1,71 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-main() {
-  check(0x8000000000000000);
-
-  check(0x7FFF00001111F000);
-  check(0x7FFF00001111FC00);
-
-
-
-
-  check(0xFFFF00001111F000);
-  check(0xFFFF00001111F800);
-
-
-
-
-
-  // Test all runs of 53 and 54 bits.
-  check(0x000FFFFFFFFFFFFF);
-  check(0x001FFFFFFFFFFFFF);
-
-  check(0x003FFFFFFFFFFFFE);
-
-  check(0x007FFFFFFFFFFFFC);
-
-  check(0x00FFFFFFFFFFFFF8);
-
-  check(0x01FFFFFFFFFFFFF0);
-
-  check(0x03FFFFFFFFFFFFE0);
-
-  check(0x07FFFFFFFFFFFFC0);
-
-  check(0x0FFFFFFFFFFFFF80);
-
-  check(0x1FFFFFFFFFFFFF00);
-
-  check(0x3FFFFFFFFFFFFE00);
-
-  check(0x7FFFFFFFFFFFFC00);
-
-  check(0xFFFFFFFFFFFFF800);
-
-  // Too big, even on VM.
-
-
-
-  // 9223372036854775808 - 512 is rounded.
-
-  // 9223372036854775808 - 1024 is exact.
-  check(9223372036854774784);
-
-  check(-9223372036854775808);
-
-
-  check(-9223372036854774784);
-
-
-}
-
-check(int n) {}
diff --git a/tests/language_2/number/web_int_literals_test.dart b/tests/language_2/number/web_int_literals_test.dart
deleted file mode 100644
index ae3735199cf..00000000000
--- a/tests/language_2/number/web_int_literals_test.dart
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  check(0x8000000000000000);
-
-  check(0x7FFF00001111F000);
-  check(0x7FFF00001111FC00);
-  check(0x7FFF00001111FE00);
-  check(0x7FFF00001111FF00);
-  check(0x7FFF00001111FFFF);
-
-  check(0xFFFF00001111F000);
-  check(0xFFFF00001111F800);
-  check(0xFFFF00001111FC00);
-  check(0xFFFF00001111FE00);
-  check(0xFFFF00001111FF00);
-  check(0xFFFF00001111FFFF);
-
-  // Test all runs of 53 and 54 bits.
-  check(0x000FFFFFFFFFFFFF);
-  check(0x001FFFFFFFFFFFFF);
-  check(0x003FFFFFFFFFFFFF);
-  check(0x003FFFFFFFFFFFFE);
-  check(0x007FFFFFFFFFFFFE);
-  check(0x007FFFFFFFFFFFFC);
-  check(0x00FFFFFFFFFFFFFC);
-  check(0x00FFFFFFFFFFFFF8);
-  check(0x01FFFFFFFFFFFFF8);
-  check(0x01FFFFFFFFFFFFF0);
-  check(0x03FFFFFFFFFFFFF0);
-  check(0x03FFFFFFFFFFFFE0);
-  check(0x07FFFFFFFFFFFFE0);
-  check(0x07FFFFFFFFFFFFC0);
-  check(0x0FFFFFFFFFFFFFC0);
-  check(0x0FFFFFFFFFFFFF80);
-  check(0x1FFFFFFFFFFFFF80);
-  check(0x1FFFFFFFFFFFFF00);
-  check(0x3FFFFFFFFFFFFF00);
-  check(0x3FFFFFFFFFFFFE00);
-  check(0x7FFFFFFFFFFFFE00);
-  check(0x7FFFFFFFFFFFFC00);
-  check(0xFFFFFFFFFFFFFC00);
-  check(0xFFFFFFFFFFFFF800);
-
-  // Too big, even on VM.
-  check(9223372036854775808);
-  //    ^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INTEGER_LITERAL_OUT_OF_RANGE
-  // [cfe] The integer literal 9223372036854775808 can't be represented in 64 bits.
-  check(9223372036854775807);
-  check(9223372036854775806);
-  // 9223372036854775808 - 512 is rounded.
-  check(9223372036854775296);
-  // 9223372036854775808 - 1024 is exact.
-  check(9223372036854774784);
-
-  check(-9223372036854775808);
-  check(-9223372036854775807);
-  check(-9223372036854775296);
-  check(-9223372036854774784);
-
-  check(1000000000000000001);
-}
-
-check(int n) {}
diff --git a/tests/language_2/operator/and_operation_on_non_integer_operand_test.dart b/tests/language_2/operator/and_operation_on_non_integer_operand_test.dart
deleted file mode 100644
index 9ceea3250e4..00000000000
--- a/tests/language_2/operator/and_operation_on_non_integer_operand_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to miscompile boolean add operations
-// if one of the operands was an int and the other was not (issue 22427).
-
-import "package:expect/expect.dart";
-
-class NotAnInt {
-  NotAnInt operator &(b) => this;
-}
-
-@pragma('dart2js:assumeDynamic')
-@pragma('dart2js:noInline')
-id(x) => x;
-
-main() {
-  var a = id(new NotAnInt());
-  Expect.equals(a, a & 5 & 2);
-}
diff --git a/tests/language_2/operator/arithmetic_canonicalization_test.dart b/tests/language_2/operator/arithmetic_canonicalization_test.dart
deleted file mode 100644
index b1a40a728a5..00000000000
--- a/tests/language_2/operator/arithmetic_canonicalization_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test canonicalization of simple arithmetic equivalences.
-// VMOptions=--optimization-counter-threshold=20 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  for (var i = 0; i < 50; i++) {
-    Expect.isTrue(mul1double(i) is double);
-    Expect.equals(i.toDouble(), mul1double(i));
-    Expect.equals(0.0, mul0double(i));
-    Expect.equals(i.toDouble(), add0double(i));
-
-    Expect.equals(i, mul1int(i));
-    Expect.equals(i, add0int(i));
-    Expect.equals(0, mul0int(i));
-    Expect.equals(0, and0(i));
-    Expect.equals(i, and1(i));
-    Expect.equals(i, or0(i));
-    Expect.equals(i, xor0(i));
-  }
-
-  Expect.isTrue(mul0double(double.nan).isNaN);
-  Expect.isFalse(add0double(-0.0).isNegative);
-}
-
-mul1double(x) => 1.0 * x;
-mul0double(x) => 0.0 * x;
-add0double(x) => 0.0 + x;
-
-mul1int(x) => 1 * x;
-mul0int(x) => 0 * x;
-add0int(x) => 0 + x;
-and0(x) => 0 & x;
-or0(x) => 0 | x;
-xor0(x) => 0 ^ x;
-and1(x) => (-1) & x;
diff --git a/tests/language_2/operator/arithmetic_int64_test.dart b/tests/language_2/operator/arithmetic_int64_test.dart
deleted file mode 100644
index eeee2a5de44..00000000000
--- a/tests/language_2/operator/arithmetic_int64_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test arithmetic operations.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-library arithmetic_test;
-
-import "package:expect/expect.dart";
-import 'dart:math';
-
-class ArithmeticTest {
-  static runOne() {
-    // Math functions.
-    Expect.equals(1234567890123456789, int.parse("1234567890123456789"));
-    Expect.equals(-1234567890123456789, int.parse("-1234567890123456789"));
-    Expect.equals(9223372036854775807, int.parse("9223372036854775807"));
-    Expect.equals(-9223372036854775808, int.parse("-9223372036854775808"));
-  }
-
-  static testMain() {
-    runOne();
-  }
-}
-
-main() {
-  ArithmeticTest.testMain();
-}
diff --git a/tests/language_2/operator/arithmetic_smi_overflow_test.dart b/tests/language_2/operator/arithmetic_smi_overflow_test.dart
deleted file mode 100644
index 6362c6a786c..00000000000
--- a/tests/language_2/operator/arithmetic_smi_overflow_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test arithmetic operations.
-
-// @dart = 2.9
-
-// VMOptions=--optimization_counter_threshold=5 --no-background_compilation
-
-import "package:expect/expect.dart";
-
-main() {
-  for (var i = 0; i < 10; i++) {
-    Expect.equals(0x40000000, (i - i) - -1073741824);
-    Expect.equals(0x4000000000000000, (i - i) - -4611686018427387904);
-  }
-}
diff --git a/tests/language_2/operator/arithmetic_test.dart b/tests/language_2/operator/arithmetic_test.dart
deleted file mode 100644
index 9f1f74b017d..00000000000
--- a/tests/language_2/operator/arithmetic_test.dart
+++ /dev/null
@@ -1,569 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Dart test program to test arithmetic operations.
-
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-// VMOptions=--use_slow_path
-
-// @dart = 2.9
-
-library arithmetic_test;
-
-import "package:expect/expect.dart";
-import 'dart:math';
-
-class ArithmeticTest {
-  static bool exceptionCaughtParseInt(String s) {
-    try {
-      int.parse(s);
-      return false;
-    } on FormatException catch (e) {
-      return true;
-    }
-  }
-
-  static bool exceptionCaughtParseDouble(String s) {
-    try {
-      double.parse(s);
-      return false;
-    } on FormatException catch (e) {
-      return true;
-    }
-  }
-
-  static bool toIntThrowsUnsupportedError(String str) {
-    // No exception allowed for parse double.
-    double d = double.parse(str);
-    try {
-      var a = d.toInt();
-      return false;
-    } on UnsupportedError catch (e) {
-      return true;
-    }
-  }
-
-  static runOne() {
-    var a = 22;
-    var b = 4;
-    // Smi & smi.
-    Expect.equals(26, a + b);
-    Expect.equals(18, a - b);
-    Expect.equals(88, a * b);
-    Expect.equals(5, a ~/ b);
-    Expect.equals(5.5, a / b);
-    Expect.equals(2.0, 10 / 5);
-    Expect.equals(2, a % b);
-    Expect.equals(2, a.remainder(b));
-    // Smi corner cases.
-    for (int i = 0; i < 80; i++) {
-      a = -(1 << i);
-      b = -1;
-      Expect.equals(1 << i, a ~/ b);
-    }
-    a = 22;
-    var c = 4.0;
-    // Smi & double.
-    Expect.equals(26.0, a + c);
-    Expect.equals(18.0, a - c);
-    Expect.equals(88.0, a * c);
-    Expect.equals(5, a ~/ c);
-    Expect.equals(5.5, a / c);
-    Expect.equals(2.0, a % c);
-    Expect.equals(2.0, a.remainder(c));
-    var d = 22.0;
-    b = 4;
-    // Double & smi.
-    Expect.equals(26.0, d + b);
-    Expect.equals(18.0, d - b);
-    Expect.equals(88.0, d * b);
-    Expect.equals(5, d ~/ b);
-    Expect.equals(5.5, d / b);
-    Expect.equals(2.0, d % b);
-    Expect.equals(2.0, d.remainder(b));
-    d = 22.0;
-    c = 4.0;
-    // Double & double.
-    Expect.equals(26.0, d + c);
-    Expect.equals(18.0, d - c);
-    Expect.equals(88.0, d * c);
-    Expect.equals(5, d ~/ c);
-    Expect.equals(5.5, d / c);
-    Expect.equals(2.0, d % c);
-    Expect.equals(2.0, d.remainder(c));
-
-    // Special int operations.
-    Expect.equals(2, (2).floor());
-    Expect.equals(2, (2).ceil());
-    Expect.equals(2, (2).round());
-    Expect.equals(2, (2).truncate());
-
-    Expect.equals(-2, (-2).floor());
-    Expect.equals(-2, (-2).ceil());
-    Expect.equals(-2, (-2).round());
-    Expect.equals(-2, (-2).truncate());
-
-    // Note that this number fits into 53 bits of a double.
-    int big = 123456789012345;
-
-    Expect.equals(big, big.floor());
-    Expect.equals(big, big.ceil());
-    Expect.equals(big, big.round());
-    Expect.equals(big, big.truncate());
-    big = -big;
-    Expect.equals(big, big.floor());
-    Expect.equals(big, big.ceil());
-    Expect.equals(big, big.round());
-    Expect.equals(big, big.truncate());
-
-    // Test if double is contagious. The assignment will check the type.
-    {
-      double d = 1 + 1.0;
-    }
-    {
-      double d = 1.0 + 1;
-    }
-    {
-      double d = 1 * 1.0;
-    }
-    {
-      double d = 0 * 1.0;
-    }
-    {
-      double d = 1.0 * 0;
-    }
-    {
-      double d = 1 / 1.0;
-    }
-    {
-      double d = 1.0 / 0;
-    }
-    {
-      double d = 1 - 1.0;
-    }
-    {
-      double d = 1.0 - 1;
-    }
-    {
-      double d = big * 1.0;
-    }
-    {
-      double d = 1.0 * big;
-    }
-
-    // Reset big to positive value.
-    big = 123456789012345;
-    // -- isNegative --.
-    // Smi.
-    Expect.equals(false, (0).isNegative);
-    Expect.equals(false, (1).isNegative);
-    Expect.equals(true, (-1).isNegative);
-    // Big.
-    Expect.equals(false, big.isNegative);
-    Expect.equals(true, (-big).isNegative);
-    // Double.
-    // TODO(srdjan): enable the following test once isNegative works.
-    // Expect.equals(true, (-0.0).isNegative);
-    Expect.equals(false, (0.0).isNegative);
-    Expect.equals(false, (2.0).isNegative);
-    Expect.equals(true, (-2.0).isNegative);
-
-    double negateDouble(double x) {
-      return -x;
-    }
-
-    Expect.isTrue(negateDouble(0.0).isNegative);
-    Expect.isFalse(negateDouble(-0.0).isNegative);
-    Expect.isTrue(negateDouble(3.5e3).isNegative);
-    Expect.isFalse(negateDouble(-3.5e3).isNegative);
-
-    // Constants.
-    final nan = 0.0 / 0.0;
-    final infinity = 1.0 / 0.0;
-
-    // -- isInfinite --.
-    // Smi.
-    Expect.equals(false, (0).isInfinite);
-    Expect.equals(false, (1).isInfinite);
-    Expect.equals(false, (-1).isInfinite);
-    // Big.
-    Expect.equals(false, big.isInfinite);
-    Expect.equals(false, (-big).isInfinite);
-    // Double.
-    Expect.equals(false, (0.0).isInfinite);
-    Expect.equals(true, infinity.isInfinite);
-    Expect.equals(true, (-infinity).isInfinite);
-    Expect.equals(false, (12.0).isInfinite);
-    Expect.equals(false, (-12.0).isInfinite);
-    Expect.equals(false, nan.isInfinite);
-
-    // -- isNaN --.
-    // Smi.
-    Expect.equals(false, (0).isNaN);
-    Expect.equals(false, (1).isNaN);
-    Expect.equals(false, (-1).isNaN);
-    // Big.
-    Expect.equals(false, big.isNaN);
-    Expect.equals(false, (-big).isNaN);
-    // Double.
-    Expect.equals(true, nan.isNaN);
-    Expect.equals(false, (12.0).isNaN);
-    Expect.equals(false, infinity.isNaN);
-
-    // -- abs --.
-    // Smi.
-    Expect.equals(0, (0).abs());
-    Expect.equals(2, (2).abs());
-    Expect.equals(2, (-2).abs());
-    // Big.
-    Expect.equals(big, big.abs());
-    Expect.equals(big, (-big).abs());
-    // Double.
-    Expect.equals(false, (0.0).abs().isNegative);
-    Expect.equals(false, (-0.0).abs().isNegative);
-    Expect.equals(2.0, (2.0).abs());
-    Expect.equals(2.0, (-2.0).abs());
-
-    // -- ceil --.
-    // Smi.
-    Expect.equals(0, (0).ceil());
-    Expect.equals(1, (1).ceil());
-    Expect.equals(-1, (-1).ceil());
-    // Big.
-    Expect.equals(big, big.ceil());
-    Expect.equals(-big, (-big).ceil());
-    // Double.
-    Expect.equals(0, (0.0).ceil());
-    Expect.equals(false, (0.0).ceil().isNegative);
-    Expect.equals(1, (0.1).ceil());
-    Expect.equals(1, double.minPositive.ceil());
-    Expect.equals(1, (0.49999999999999994).ceil());
-    Expect.equals(0, (-0.0).ceil());
-    Expect.equals(0, (-0.3).ceil());
-    Expect.isTrue((-0.0).ceil() is int);
-    Expect.isTrue((-0.3).ceil() is int);
-    Expect.equals(0, (-0.49999999999999994).ceil());
-    Expect.equals(3, (2.1).ceil());
-    Expect.equals(-2, (-2.1).ceil());
-
-    // -- floor --.
-    // Smi.
-    Expect.equals(0, (0).floor());
-    Expect.equals(1, (1).floor());
-    Expect.equals(-1, (-1).floor());
-    // Big.
-    Expect.equals(big, big.floor());
-    Expect.equals(-big, (-big).floor());
-    // Double.
-    Expect.equals(0, (0.0).floor());
-    Expect.equals(0, (0.1).floor());
-    Expect.equals(0, (0.49999999999999994).floor());
-    Expect.equals(0, double.minPositive.floor());
-    Expect.isTrue((0.0).floor() is int);
-    Expect.isTrue((0.1).floor() is int);
-    Expect.equals(0, (-0.0).floor());
-    Expect.isTrue((-0.0).floor() is int);
-    Expect.equals(-1, (-0.1).floor());
-    Expect.equals(2, (2.1).floor());
-    Expect.equals(-3, (-2.1).floor());
-    Expect.equals(-1.0, (-0.49999999999999994).floor());
-    Expect.equals(-3.0, (-2.1).floor());
-
-    // -- truncate --.
-    // Smi.
-    Expect.equals(0, (0).truncate());
-    Expect.equals(1, (1).truncate());
-    Expect.equals(-1, (-1).truncate());
-    // Big.
-    Expect.equals(big, big.truncate());
-    Expect.equals(-big, (-big).truncate());
-    // Double.
-    Expect.equals(0, (0.0).truncate());
-    Expect.equals(0, (0.1).truncate());
-    Expect.isTrue((0.0).truncate() is int);
-    Expect.isTrue((0.1).truncate() is int);
-    Expect.equals(0, (-0.0).truncate());
-    Expect.equals(0, (-0.3).truncate());
-    Expect.isTrue((-0.0).truncate() is int);
-    Expect.isTrue((-0.3).truncate() is int);
-    Expect.equals(2, (2.1).truncate());
-    Expect.equals(-2, (-2.1).truncate());
-
-    int b1 = (1234567890123.0).truncate();
-    int b2 = (1234567890124.0).truncate();
-    Expect.equals(b2, b1 + 1.0);
-
-    // -- round --.
-    // Smi.
-    Expect.equals(0, (0).round());
-    Expect.equals(1, (1).round());
-    Expect.equals(-1, (-1).round());
-    // Big.
-    Expect.equals(big, big.round());
-    Expect.equals(-big, (-big).round());
-    // Double.
-    Expect.equals(3, (2.6).round());
-    Expect.equals(-3, (-2.6).round());
-    Expect.equals(0, (0.0).round());
-    Expect.equals(0, (0.1).round());
-    Expect.equals(3, (2.5).round());
-    Expect.equals(-3, (-2.5).round());
-    Expect.isFalse((0.0).round().isNegative);
-    Expect.isFalse((0.1).round().isNegative);
-    Expect.equals(0, (-0.0).round());
-    Expect.equals(0, (-0.3).round());
-    Expect.equals(2, (2.1).round());
-    Expect.equals(-2, (-2.1).round());
-    Expect.equals(1, (0.5).round());
-    Expect.equals(-1, (-0.5).round());
-    Expect.isTrue((-0.0).round() is int);
-    Expect.isTrue((-0.3).round() is int);
-    Expect.isTrue((-0.5).round() is int);
-    Expect.equals(2, (1.5).round());
-    Expect.equals(-2, (-1.5).round());
-    Expect.equals(1, (0.99).round());
-
-    // -- toInt --.
-    // Smi.
-    Expect.equals(0, (0).toInt());
-    Expect.equals(1, (1).toInt());
-    Expect.equals(-1, (-1).toInt());
-    // Type checks.
-    {
-      int i = (0).toInt();
-    }
-    {
-      int i = (1).toInt();
-    }
-    {
-      int i = (-1).toInt();
-    }
-    // Big.
-    Expect.equals(big, big.toInt());
-    Expect.equals(-big, (-big).toInt());
-    {
-      int i = big.toInt();
-    }
-    {
-      int i = (-big).toInt();
-    }
-    // Double.
-    Expect.equals(1234567890123, (1234567890123.0).toInt());
-    Expect.equals(-1234567890123, (-1234567890123.0).toInt());
-    {
-      int i = (1234567890123.0).toInt();
-    }
-    {
-      int i = (-1234567890123.0).toInt();
-    }
-    // 32bit Smi border cases.
-    Expect.equals(-1073741824, (-1073741824.0).toInt());
-    Expect.equals(-1073741825, (-1073741825.0).toInt());
-    Expect.equals(1073741823, (1073741823.0).toInt());
-    Expect.equals(1073741824, (1073741824.0).toInt());
-
-    {
-      int i = (-1073741824.0).toInt();
-    }
-    {
-      int i = (-1073741825.0).toInt();
-    }
-    {
-      int i = (1073741823.0).toInt();
-    }
-    {
-      int i = (1073741824.0).toInt();
-    }
-
-    // -- toDouble --.
-    // Smi.
-    Expect.equals(0.0, (0).toDouble());
-    Expect.equals(1.0, (1).toDouble());
-    Expect.equals(-1.0, (-1).toDouble());
-    // Type checks.
-    {
-      double d = (0).toDouble();
-    }
-    {
-      double d = (1).toDouble();
-    }
-    {
-      double d = (-1).toDouble();
-    }
-    // Big.
-    Expect.equals(big, big.toInt());
-    Expect.equals(-big, (-big).toInt());
-    {
-      int i = big.toInt();
-    }
-    {
-      int i = (-big).toInt();
-    }
-
-    // Math functions.
-    Expect.equals(2.0, sqrt(4.0));
-    Expect.approxEquals(1.0, sin(3.14159265 / 2.0));
-    Expect.approxEquals(-1.0, cos(3.14159265));
-
-    Expect.equals(12, int.parse("12"));
-    Expect.equals(-12, int.parse("-12"));
-    Expect.equals(9007199254740991, int.parse("9007199254740991"));
-    Expect.equals(-9007199254740991, int.parse("-9007199254740991"));
-    // Type checks.
-    {
-      int i = int.parse("12");
-    }
-    {
-      int i = int.parse("-12");
-    }
-    {
-      int i = int.parse("1234567890123456789");
-    }
-    {
-      int i = int.parse("-1234567890123456789");
-    }
-    {
-      int i = int.parse("9223372036854775807");
-    }
-    {
-      int i = int.parse("-9223372036854775808");
-    }
-
-    Expect.equals(1.2, double.parse("1.2"));
-    Expect.equals(-1.2, double.parse("-1.2"));
-    // Type checks.
-    {
-      double d = double.parse("1.2");
-    }
-    {
-      double d = double.parse("-1.2");
-    }
-    {
-      double d = double.parse("0");
-    }
-
-    // Random
-    {
-      Random rand = new Random();
-      double d = rand.nextDouble();
-    }
-
-    Expect.equals(false, exceptionCaughtParseInt("22"));
-    Expect.equals(true, exceptionCaughtParseInt("alpha"));
-    Expect.equals(true, exceptionCaughtParseInt("-alpha"));
-    Expect.equals(false, exceptionCaughtParseDouble("22.2"));
-    Expect.equals(true, exceptionCaughtParseDouble("alpha"));
-    Expect.equals(true, exceptionCaughtParseDouble("-alpha"));
-
-    Expect.equals(false, double.parse("1.2").isNaN);
-    Expect.equals(false, double.parse("1.2").isInfinite);
-
-    Expect.equals(true, double.parse("NaN").isNaN);
-    Expect.equals(true, double.parse("Infinity").isInfinite);
-    Expect.equals(true, double.parse("-Infinity").isInfinite);
-
-    Expect.equals(false, double.parse("NaN").isNegative);
-    Expect.equals(false, double.parse("Infinity").isNegative);
-    Expect.equals(true, double.parse("-Infinity").isNegative);
-
-    Expect.equals("NaN", double.parse("NaN").toString());
-    Expect.equals("Infinity", double.parse("Infinity").toString());
-    Expect.equals("-Infinity", double.parse("-Infinity").toString());
-
-    Expect.equals(false, toIntThrowsUnsupportedError("1.2"));
-    Expect.equals(true, toIntThrowsUnsupportedError("Infinity"));
-    Expect.equals(true, toIntThrowsUnsupportedError("-Infinity"));
-    Expect.equals(true, toIntThrowsUnsupportedError("NaN"));
-
-    // Min/max
-    Expect.equals(1, min(1, 12));
-    Expect.equals(12, max(1, 12));
-    Expect.equals(1.0, min(1.0, 12.0));
-    Expect.equals(12.0, max(1.0, 12.0));
-    Expect.equals(false, 1.0 < min(1.0, 12.0));
-    Expect.equals(true, 1.0 < max(1.0, 12.0));
-
-    // Hashcode
-    Expect.equals(false, (3.4).hashCode == (1.2).hashCode);
-    Expect.equals(true, (1.2).hashCode == (1.2).hashCode);
-    Expect.equals(false, (3).hashCode == (1).hashCode);
-    Expect.equals(true, (10).hashCode == (10).hashCode);
-  }
-
-  static int div(a, b) => a ~/ b;
-
-  static void testSmiDivDeopt() {
-    var a = -0x40000000;
-    var b = -1;
-    for (var i = 0; i < 10; i++) Expect.equals(0x40000000, div(a, b));
-  }
-
-  static int divMod(a, b) => a ~/ b + a % b;
-
-  static void testSmiDivModDeopt() {
-    var a = -0x40000000;
-    var b = -1;
-    for (var i = 0; i < 10; i++) Expect.equals(0x40000000, divMod(a, b));
-  }
-
-  static double sinCosSub(double a) => sin(a) - cos(a);
-
-  static double sinCosAddCos(double a) => sin(a) * cos(a) + cos(a);
-
-  static void testSinCos() {
-    var e = sin(1.234) - cos(1.234);
-    var f = sin(1.234) * cos(1.234) + cos(1.234);
-
-    for (var i = 0; i < 20; i++) {
-      Expect.approxEquals(e, sinCosSub(1.234));
-      Expect.approxEquals(f, sinCosAddCos(1.234));
-    }
-    Expect.approxEquals(1.0, sinCosSub(3.14159265));
-    Expect.approxEquals(1.0, sinCosSub(3.14159265 / 2.0));
-  }
-
-  // Test fix for issue 16592.
-  static void testSinCosNoUse() {
-    for (var i = 0; i < 20; i++) {
-      sin(i);
-      cos(i);
-    }
-  }
-
-  static mySqrt(var x) => sqrt(x);
-
-  static testSqrtDeopt() {
-    for (var i = 0; i < 10; i++) mySqrt(4.0);
-    Expect.equals(2.0, mySqrt(4.0));
-    Expect.throws(() => mySqrt("abc"));
-  }
-
-  static self_equality(x) {
-    return x == x;
-  }
-
-  static testDoubleEquality() {
-    Expect.isFalse(self_equality(double.nan));
-    for (int i = 0; i < 20; i++) {
-      self_equality(3.0);
-    }
-    Expect.isFalse(self_equality(double.nan));
-  }
-
-  static testMain() {
-    for (int i = 0; i < 20; i++) {
-      runOne();
-      testSmiDivDeopt();
-      testSmiDivModDeopt();
-      testSqrtDeopt();
-      testDoubleEquality();
-      testSinCos();
-      testSinCosNoUse();
-    }
-  }
-}
-
-main() {
-  ArithmeticTest.testMain();
-}
diff --git a/tests/language_2/operator/bit_operations_test.dart b/tests/language_2/operator/bit_operations_test.dart
deleted file mode 100644
index d604759b045..00000000000
--- a/tests/language_2/operator/bit_operations_test.dart
+++ /dev/null
@@ -1,257 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing bitwise operations.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  for (int i = 0; i < 4; i++) {
-    test();
-  }
-}
-
-void test() {
-  Expect.equals(3, (3 & 7));
-  Expect.equals(7, (3 | 7));
-  Expect.equals(4, (3 ^ 7));
-  Expect.equals(25, (100 >> 2));
-  Expect.equals(400, (100 << 2));
-  Expect.equals(-25, (-100 >> 2));
-  Expect.equals(-101, ~100);
-  Expect.equals(0, 1 << 64);
-  Expect.equals(0, -1 << 64);
-  Expect.equals(0x40000000, 0x04000000 << 4);
-  Expect.equals(0x4000000000000000, 0x0400000000000000 << 4);
-  Expect.equals(0, ~ -1);
-  Expect.equals(-1, ~0);
-
-  Expect.equals(0, 1 >> 160);
-  Expect.equals(-1, -1 >> 160);
-
-  Expect.equals(0x1000000000000001, 0x1000000000000001 & 0x1000100F00000001);
-  Expect.equals(0x1, 0x1 & 0x1000100F00000001);
-  Expect.equals(0x1, 0x1000100F00000001 & 0x1);
-
-  Expect.equals(0x1000100F00000001, 0x1000000000000001 | 0x1000100F00000001);
-  Expect.equals(0x1000100F00000011, 0x11 | 0x1000100F00000001);
-  Expect.equals(0x1000100F00000011, 0x1000100F00000001 | 0x11);
-
-  Expect.equals(0x0F00000000000000, 0x0F00000000000001 ^ 0x0000000000000001);
-  Expect.equals(0x31, 0x0F00000000000001 ^ 0x0F00000000000030);
-  Expect.equals(0x0F00000000000031, 0x0F00000000000001 ^ 0x30);
-  Expect.equals(0x0F00000000000031, 0x30 ^ 0x0F00000000000001);
-
-  Expect.equals(0x000000000000000F, 0x000000000000000F7 >> 4);
-  Expect.equals(15, 0xF00000000 >> 32);
-  Expect.equals(1030792151040, 16492674416655 >> 4);
-
-  Expect.equals(0x00000000000000F0, 0xF00000000000000F << 4);
-  Expect.equals(0xF00000000, 15 << 32);
-
-  // Test bitwise operations on booleans
-  // This avoids frontend optimizations
-  final trueValue = int.parse("1") == 1;
-  final falseValue = int.parse("2") == 1;
-  Expect.equals(trueValue, trueValue & trueValue);
-  Expect.equals(falseValue, trueValue & falseValue);
-  Expect.equals(falseValue, falseValue & trueValue);
-  Expect.equals(falseValue, falseValue & falseValue);
-  Expect.equals(trueValue, trueValue | trueValue);
-  Expect.equals(trueValue, trueValue | falseValue);
-  Expect.equals(trueValue, falseValue | trueValue);
-  Expect.equals(falseValue, falseValue | falseValue);
-  Expect.equals(falseValue, trueValue ^ trueValue);
-  Expect.equals(trueValue, trueValue ^ falseValue);
-  Expect.equals(trueValue, falseValue ^ trueValue);
-  Expect.equals(falseValue, falseValue ^ falseValue);
-
-  testNegativeValueShifts();
-  testPositiveValueShifts();
-  testNoMaskingOfShiftCount();
-  testNegativeCountShifts();
-  for (int i = 0; i < 20; i++) {
-    testCornerCasesRightShifts();
-    testRightShift64Bit();
-    testLeftShift64Bit();
-    testLeftShift64BitWithOverflow1();
-    testLeftShift64BitWithOverflow2();
-    testLeftShift64BitWithOverflow3();
-  }
-
-  // Test precedence.
-  testPrecedence(4, 5, 3, 1);
-  testPrecedence(3, 4, 5, 9);
-  testPrecedence(0x5c71, 0x6b92, 0x7654, 0x7d28);
-
-  // Test more special cases.
-  testRightShift65();
-}
-
-void testCornerCasesRightShifts() {
-  var v32 = 0xFF000000;
-  var v64 = 0xFF00000000000000;
-  Expect.equals(0x3, v32 >> 0x1E);
-  Expect.equals(0x1, v32 >> 0x1F);
-  Expect.equals(0x0, v32 >> 0x20);
-  Expect.equals(-1, v64 >> 0x3E);
-  Expect.equals(-1, v64 >> 0x3F);
-  Expect.equals(-1, v64 >> 0x40);
-}
-
-void testRightShift64Bit() {
-  var t = 0x1ffffffff;
-  Expect.equals(0xffffffff, t >> 1);
-}
-
-void testLeftShift64Bit() {
-  var t = 0xffffffff;
-  Expect.equals(0xffffffff, t << 0);
-  Expect.equals(0x1fffffffe, t << 1);
-  Expect.equals(0x7fffffff80000000, t << 31);
-  Expect.equals(0x8000000000000000, (t + 1) << 31);
-}
-
-void testLeftShift64BitWithOverflow1() {
-  var t = 0xffffffff;
-  Expect.equals(0, 2 * (t + 1) << 31); //# 03: ok
-}
-
-void testLeftShift64BitWithOverflow2() {
-  var t = 0xffffffff;
-  Expect.equals(0, 4 * (t + 1) << 31); //# 04: ok
-}
-
-void testLeftShift64BitWithOverflow3() {
-  var t = 0xffffffff;
-  Expect.equals(0x8000000000000000, (t + 1) << 31);
-}
-
-void testNegativeCountShifts() {
-  bool throwOnLeft(a, b) {
-    try {
-      var x = a << b;
-      return false;
-    } catch (e) {
-      return true;
-    }
-  }
-
-  bool throwOnRight(a, b) {
-    try {
-      var x = a >> b;
-      return false;
-    } catch (e) {
-      return true;
-    }
-  }
-
-  Expect.isTrue(throwOnLeft(12, -3));
-  Expect.isTrue(throwOnRight(12, -3));
-  for (int i = 0; i < 20; i++) {
-    Expect.isFalse(throwOnLeft(12, 3));
-    Expect.isFalse(throwOnRight(12, 3));
-  }
-}
-
-void testNegativeValueShifts() {
-  for (int value = 0; value > -100; value--) {
-    for (int i = 0; i < 300; i++) {
-      int b = (value << i) >> i;
-      if (i < (64 - value.bitLength)) {
-        // No bits lost.
-        Expect.equals(value, b);
-      } else if (i >= 64) {
-        // All bits are shifted out.
-        Expect.equals(0, b);
-      } else {
-        // Some bits are lost.
-        int masked_value = value & ((1 << (64 - i)) - 1);
-        int signbit = masked_value & (1 << (63 - i));
-        int signmask = (signbit != 0) ? (-1 << (64 - i)) : 0;
-        Expect.equals(signmask | masked_value, b);
-      }
-    }
-  }
-}
-
-void testPositiveValueShifts() {
-  for (int value = 0; value < 100; value++) {
-    for (int i = 0; i < 300; i++) {
-      int b = (value << i) >> i;
-      if (i < (64 - value.bitLength)) {
-        Expect.equals(value, b);
-      } else if (i >= 64) {
-        Expect.equals(0, b);
-      } else {
-        // Some bits are lost.
-        int masked_value = value & ((1 << (64 - i)) - 1);
-        int signbit = masked_value & (1 << (63 - i));
-        int signmask = (signbit != 0) ? (-1 << (64 - i)) : 0;
-        Expect.equals(signmask | masked_value, b);
-      }
-    }
-  }
-}
-
-void testNoMaskingOfShiftCount() {
-  // Shifts which would behave differently if shift count was masked into a
-  // range.
-  Expect.equals(0, 0 >> 256);
-  Expect.equals(0, 1 >> 256);
-  Expect.equals(0, 2 >> 256);
-  Expect.equals(0, shiftRight(0, 256));
-  Expect.equals(0, shiftRight(1, 256));
-  Expect.equals(0, shiftRight(2, 256));
-
-  for (int shift = 1; shift <= 256; shift++) {
-    Expect.equals(0, shiftRight(1, shift));
-    Expect.equals(-1, shiftRight(-1, shift));
-    if (shift < 63) {
-      Expect.equals(true, shiftLeft(1, shift) > shiftLeft(1, shift - 1));
-    } else if (shift > 64) {
-      Expect.equals(
-          true, (shiftLeft(1, shift) == 0) && (shiftLeft(1, shift - 1) == 0));
-    }
-  }
-}
-
-int shiftLeft(int a, int b) {
-  return a << b;
-}
-
-int shiftRight(int a, int b) {
-  return a >> b;
-}
-
-void testPrecedence(int a, int b, int c, int d) {
-  // & binds stronger than ^, which binds stronger than |.
-  int result = a & b ^ c | d & b ^ c;
-  Expect.equals(((a & b) ^ c) | ((d & b) ^ c), result); //     &^|
-  Expect.notEquals((a & (b ^ c)) | (d & (b ^ c)), result); //  ^&|
-  Expect.notEquals((a & b) ^ (c | (d & b)) ^ c, result); //    &|^
-  Expect.notEquals((a & b) ^ ((c | d) & b) ^ c, result); //    |&^
-  Expect.notEquals(a & (b ^ (c | d)) & (b ^ c), result); //    |^&
-  Expect.notEquals(a & ((b ^ c) | d) & (b ^ c), result); //    ^|&
-  // Binds stronger than relational operators.
-  Expect.equals((a & b) < (c & d), a & b < c & d);
-  // Binds weaker than shift operators.
-  Expect.equals((a & (b << c)) ^ d, a & b << c ^ d);
-  Expect.notEquals((a & b) << (c ^ d), a & b << c ^ d);
-}
-
-@pragma('vm:never-inline')
-rightShift65Noinline(a) => a >> 65;
-
-testRightShift65() {
-  var a = 0x5f22334455667788;
-  var b = -0x5f22334455667788;
-
-  for (var i = 0; i < 20; ++i) {
-    Expect.equals(0, rightShift65Noinline(a));
-    Expect.equals(-1, rightShift65Noinline(b));
-  }
-}
diff --git a/tests/language_2/operator/bit_shift_test.dart b/tests/language_2/operator/bit_shift_test.dart
deleted file mode 100644
index efe2d291b11..00000000000
--- a/tests/language_2/operator/bit_shift_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-constants() {
-  Expect.equals(0, 499 >> 33);
-  Expect.equals(0, (499 << 33) & 0xFFFFFFFF);
-  Expect.equals(0, (499 << 32) >> 65);
-  Expect.equals(0, (499 << 32) << 65);
-}
-
-foo(i) {
-  if (i != 0) {
-    y--;
-    foo(i - 1);
-    y++;
-  }
-}
-
-var y;
-
-// id returns [x] in a way that should be difficult to predict statically.
-id(x) {
-  y = x;
-  foo(10);
-  return y;
-}
-
-interceptors() {
-  Expect.equals(0, id(499) >> 33);
-  Expect.equals(0, (id(499) << 33) & 0xFFFFFFFF);
-  Expect.equals(0, id(499 << 32) >> 65);
-  Expect.equals(0, id(499 << 32) << 65);
-}
-
-speculative() {
-  var a = id(499);
-  var b = id(499 << 32);
-  for (int i = 0; i < 1; i++) {
-    Expect.equals(0, a >> 33);
-    Expect.equals(0, (a << 33) & 0xFFFFFFFF);
-    Expect.equals(0, b >> 65);
-    Expect.equals(0, b << 65);
-  }
-}
-
-// JavaScript shifts by the amount modulo 32. That is x << y is equivalent to
-// x << (y & 0x1F). Dart does not.
-main() {
-  for (var i = 0; i < 10; ++i) {
-    constants();
-    interceptors();
-    speculative();
-  }
-}
diff --git a/tests/language_2/operator/comparison_test.dart b/tests/language_2/operator/comparison_test.dart
deleted file mode 100644
index 11dcd6c9980..00000000000
--- a/tests/language_2/operator/comparison_test.dart
+++ /dev/null
@@ -1,327 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing comparison operators.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Helper {
-  static bool STRICT_EQ(a, b) {
-    return identical(a, b);
-  }
-
-  static bool STRICT_NE(a, b) {
-    return !identical(a, b);
-  }
-
-  static bool EQ(a, b) {
-    return a == b;
-  }
-
-  static bool NE(a, b) {
-    return a != b;
-  }
-
-  static bool LT(a, b) {
-    return a < b;
-  }
-
-  static bool LE(a, b) {
-    return a <= b;
-  }
-
-  static bool GT(a, b) {
-    return a > b;
-  }
-
-  static bool GE(a, b) {
-    return a >= b;
-  }
-}
-
-class A {
-  var b;
-
-  A(x) : b = x {}
-}
-
-class ComparisonTest {
-  static testMain() {
-    var a = new A(0);
-    var b = new A(1);
-    Expect.isTrue(Helper.STRICT_EQ(a, a));
-    Expect.isFalse(Helper.STRICT_EQ(a, b));
-    Expect.isFalse(Helper.STRICT_EQ(b, a));
-    Expect.isTrue(Helper.STRICT_EQ(b, b));
-
-    Expect.isFalse(Helper.STRICT_NE(a, a));
-    Expect.isTrue(Helper.STRICT_NE(a, b));
-    Expect.isTrue(Helper.STRICT_NE(b, a));
-    Expect.isFalse(Helper.STRICT_NE(b, b));
-
-    Expect.isTrue(Helper.STRICT_EQ(false, false));
-    Expect.isFalse(Helper.STRICT_EQ(false, true));
-    Expect.isFalse(Helper.STRICT_EQ(true, false));
-    Expect.isTrue(Helper.STRICT_EQ(true, true));
-
-    Expect.isFalse(Helper.STRICT_NE(false, false));
-    Expect.isTrue(Helper.STRICT_NE(false, true));
-    Expect.isTrue(Helper.STRICT_NE(true, false));
-    Expect.isFalse(Helper.STRICT_NE(true, true));
-
-    Expect.isTrue(Helper.STRICT_EQ(false, false));
-    Expect.isFalse(Helper.STRICT_EQ(false, true));
-    Expect.isFalse(Helper.STRICT_EQ(true, false));
-    Expect.isTrue(Helper.STRICT_EQ(true, true));
-
-    Expect.isFalse(Helper.STRICT_NE(false, false));
-    Expect.isTrue(Helper.STRICT_NE(false, true));
-    Expect.isTrue(Helper.STRICT_NE(true, false));
-    Expect.isFalse(Helper.STRICT_NE(true, true));
-
-    Expect.isTrue(Helper.EQ(false, false));
-    Expect.isFalse(Helper.EQ(false, true));
-    Expect.isFalse(Helper.EQ(true, false));
-    Expect.isTrue(Helper.EQ(true, true));
-
-    Expect.isFalse(Helper.NE(false, false));
-    Expect.isTrue(Helper.NE(false, true));
-    Expect.isTrue(Helper.NE(true, false));
-    Expect.isFalse(Helper.NE(true, true));
-
-    Expect.isTrue(Helper.STRICT_EQ(-1, -1));
-    Expect.isTrue(Helper.STRICT_EQ(0, 0));
-    Expect.isTrue(Helper.STRICT_EQ(1, 1));
-    Expect.isFalse(Helper.STRICT_EQ(-1, 0));
-    Expect.isFalse(Helper.STRICT_EQ(-1, 1));
-    Expect.isFalse(Helper.STRICT_EQ(0, 1));
-
-    Expect.isFalse(Helper.STRICT_NE(-1, -1));
-    Expect.isFalse(Helper.STRICT_NE(0, 0));
-    Expect.isFalse(Helper.STRICT_NE(1, 1));
-    Expect.isTrue(Helper.STRICT_NE(-1, 0));
-    Expect.isTrue(Helper.STRICT_NE(-1, 1));
-    Expect.isTrue(Helper.STRICT_NE(0, 1));
-
-    Expect.isTrue(Helper.EQ(-1, -1));
-    Expect.isTrue(Helper.EQ(0, 0));
-    Expect.isTrue(Helper.EQ(1, 1));
-    Expect.isFalse(Helper.EQ(-1, 0));
-    Expect.isFalse(Helper.EQ(-1, 1));
-    Expect.isFalse(Helper.EQ(0, 1));
-
-    Expect.isFalse(Helper.NE(-1, -1));
-    Expect.isFalse(Helper.NE(0, 0));
-    Expect.isFalse(Helper.NE(1, 1));
-    Expect.isTrue(Helper.NE(-1, 0));
-    Expect.isTrue(Helper.NE(-1, 1));
-    Expect.isTrue(Helper.NE(0, 1));
-
-    Expect.isFalse(Helper.LT(-1, -1));
-    Expect.isFalse(Helper.LT(0, 0));
-    Expect.isFalse(Helper.LT(1, 1));
-    Expect.isTrue(Helper.LT(-1, 0));
-    Expect.isTrue(Helper.LT(-1, 1));
-    Expect.isTrue(Helper.LT(0, 1));
-    Expect.isFalse(Helper.LT(0, -1));
-    Expect.isFalse(Helper.LT(1, -1));
-    Expect.isFalse(Helper.LT(1, 0));
-
-    Expect.isTrue(Helper.LE(-1, -1));
-    Expect.isTrue(Helper.LE(0, 0));
-    Expect.isTrue(Helper.LE(1, 1));
-    Expect.isTrue(Helper.LE(-1, 0));
-    Expect.isTrue(Helper.LE(-1, 1));
-    Expect.isTrue(Helper.LE(0, 1));
-    Expect.isFalse(Helper.LE(0, -1));
-    Expect.isFalse(Helper.LE(1, -1));
-    Expect.isFalse(Helper.LE(1, 0));
-
-    Expect.isFalse(Helper.GT(-1, -1));
-    Expect.isFalse(Helper.GT(0, 0));
-    Expect.isFalse(Helper.GT(1, 1));
-    Expect.isFalse(Helper.GT(-1, 0));
-    Expect.isFalse(Helper.GT(-1, 1));
-    Expect.isFalse(Helper.GT(0, 1));
-    Expect.isTrue(Helper.GT(0, -1));
-    Expect.isTrue(Helper.GT(1, -1));
-    Expect.isTrue(Helper.GT(1, 0));
-
-    Expect.isTrue(Helper.GE(-1, -1));
-    Expect.isTrue(Helper.GE(0, 0));
-    Expect.isTrue(Helper.GE(1, 1));
-    Expect.isFalse(Helper.GE(-1, 0));
-    Expect.isFalse(Helper.GE(-1, 1));
-    Expect.isFalse(Helper.GE(0, 1));
-    Expect.isTrue(Helper.GE(0, -1));
-    Expect.isTrue(Helper.GE(1, -1));
-    Expect.isTrue(Helper.GE(1, 0));
-
-    Expect.isTrue(Helper.STRICT_EQ(-1.0, -1.0));
-    Expect.isTrue(Helper.STRICT_EQ(0.0, 0.0));
-    Expect.isTrue(Helper.STRICT_EQ(1.0, 1.0));
-    Expect.isFalse(Helper.STRICT_EQ(-1.0, 0.0));
-    Expect.isFalse(Helper.STRICT_EQ(-1.0, 1.0));
-    Expect.isFalse(Helper.STRICT_EQ(0.0, 1.0));
-
-    Expect.isFalse(Helper.STRICT_NE(-1.0, -1.0));
-    Expect.isFalse(Helper.STRICT_NE(0.0, 0.0));
-    Expect.isFalse(Helper.STRICT_NE(1.0, 1.0));
-    Expect.isTrue(Helper.STRICT_NE(-1.0, 0.0));
-    Expect.isTrue(Helper.STRICT_NE(-1.0, 1.0));
-    Expect.isTrue(Helper.STRICT_NE(0.0, 1.0));
-
-    Expect.isTrue(Helper.EQ(-1.0, -1.0));
-    Expect.isTrue(Helper.EQ(0.0, 0.0));
-    Expect.isTrue(Helper.EQ(1.0, 1.0));
-    Expect.isFalse(Helper.EQ(-1.0, 0.0));
-    Expect.isFalse(Helper.EQ(-1.0, 1.0));
-    Expect.isFalse(Helper.EQ(0.0, 1.0));
-
-    Expect.isFalse(Helper.NE(-1.0, -1.0));
-    Expect.isFalse(Helper.NE(0.0, 0.0));
-    Expect.isFalse(Helper.NE(1.0, 1.0));
-    Expect.isTrue(Helper.NE(-1.0, 0.0));
-    Expect.isTrue(Helper.NE(-1.0, 1.0));
-    Expect.isTrue(Helper.NE(0.0, 1.0));
-
-    Expect.isFalse(Helper.LT(-1.0, -1.0));
-    Expect.isFalse(Helper.LT(0.0, 0.0));
-    Expect.isFalse(Helper.LT(1.0, 1.0));
-    Expect.isTrue(Helper.LT(-1.0, 0.0));
-    Expect.isTrue(Helper.LT(-1.0, 1.0));
-    Expect.isTrue(Helper.LT(0.0, 1.0));
-    Expect.isFalse(Helper.LT(0.0, -1.0));
-    Expect.isFalse(Helper.LT(1.0, -1.0));
-    Expect.isFalse(Helper.LT(1.0, 0.0));
-
-    Expect.isTrue(Helper.LE(-1.0, -1.0));
-    Expect.isTrue(Helper.LE(0.0, 0.0));
-    Expect.isTrue(Helper.LE(1.0, 1.0));
-    Expect.isTrue(Helper.LE(-1.0, 0.0));
-    Expect.isTrue(Helper.LE(-1.0, 1.0));
-    Expect.isTrue(Helper.LE(0.0, 1.0));
-    Expect.isFalse(Helper.LE(0.0, -1.0));
-    Expect.isFalse(Helper.LE(1.0, -1.0));
-    Expect.isFalse(Helper.LE(1.0, 0.0));
-
-    Expect.isFalse(Helper.GT(-1.0, -1.0));
-    Expect.isFalse(Helper.GT(0.0, 0.0));
-    Expect.isFalse(Helper.GT(1.0, 1.0));
-    Expect.isFalse(Helper.GT(-1.0, 0.0));
-    Expect.isFalse(Helper.GT(-1.0, 1.0));
-    Expect.isFalse(Helper.GT(0.0, 1.0));
-    Expect.isTrue(Helper.GT(0.0, -1.0));
-    Expect.isTrue(Helper.GT(1.0, -1.0));
-    Expect.isTrue(Helper.GT(1.0, 0.0));
-
-    Expect.isTrue(Helper.GE(-1.0, -1.0));
-    Expect.isTrue(Helper.GE(0.0, 0.0));
-    Expect.isTrue(Helper.GE(1.0, 1.0));
-    Expect.isFalse(Helper.GE(-1.0, 0.0));
-    Expect.isFalse(Helper.GE(-1.0, 1.0));
-    Expect.isFalse(Helper.GE(0.0, 1.0));
-    Expect.isTrue(Helper.GE(0.0, -1.0));
-    Expect.isTrue(Helper.GE(1.0, -1.0));
-    Expect.isTrue(Helper.GE(1.0, 0.0));
-
-    Expect.isTrue(Helper.EQ(null, null));
-    Expect.isFalse(Helper.EQ(null, "Str"));
-    Expect.isTrue(Helper.NE(null, 2));
-    Expect.isFalse(Helper.NE(null, null));
-
-    Expect.isTrue(Helper.STRICT_EQ(null, null));
-    Expect.isFalse(Helper.STRICT_EQ(null, "Str"));
-    Expect.isTrue(Helper.STRICT_NE(null, 2));
-    Expect.isFalse(Helper.STRICT_NE(null, null));
-
-    Expect.isFalse(Helper.GT(1, 1.2));
-    Expect.isTrue(Helper.GT(3, 1.2));
-    Expect.isTrue(Helper.GT(2.0, 1));
-    Expect.isFalse(Helper.GT(3.1, 4));
-
-    Expect.isFalse(Helper.GE(1, 1.2));
-    Expect.isTrue(Helper.GE(3, 1.2));
-    Expect.isTrue(Helper.GE(2.0, 1));
-    Expect.isFalse(Helper.GE(3.1, 4));
-    Expect.isTrue(Helper.GE(2.0, 2));
-    Expect.isTrue(Helper.GE(2, 2.0));
-
-    Expect.isTrue(Helper.LT(1, 1.2));
-    Expect.isFalse(Helper.LT(3, 1.2));
-    Expect.isFalse(Helper.LT(2.0, 1));
-    Expect.isTrue(Helper.LT(3.1, 4));
-
-    Expect.isTrue(Helper.LE(1, 1.2));
-    Expect.isFalse(Helper.LE(3, 1.2));
-    Expect.isFalse(Helper.LE(2.0, 1));
-    Expect.isTrue(Helper.LE(3.1, 4));
-    Expect.isTrue(Helper.LE(2.0, 2));
-    Expect.isTrue(Helper.LE(2, 2.0));
-
-    // Bignums.
-    Expect.isTrue(Helper.LE(0xF00000000005, 0xF00000000006));
-    Expect.isTrue(Helper.LE(0xF00000000005, 0xF00000000005));
-    Expect.isFalse(Helper.LE(0xF00000000006, 0xF00000000005));
-    Expect.isTrue(Helper.LE(12, 0xF00000000005));
-    Expect.isTrue(Helper.LE(12.2, 0xF00000000005));
-
-    Expect.isTrue(Helper.EQ(4294967295, 4.294967295e9));
-    Expect.isTrue(Helper.EQ(4.294967295e9, 4294967295));
-    Expect.isFalse(Helper.EQ(4.294967295e9, 42));
-    Expect.isFalse(Helper.EQ(42, 4.294967295e9));
-    Expect.isFalse(Helper.EQ(4294967295, 42));
-    Expect.isFalse(Helper.EQ(42, 4294967295));
-
-    // Fractions & mixed
-    Expect.isTrue(Helper.EQ(1.0, 1));
-    Expect.isTrue(Helper.EQ(1.0, 1));
-    Expect.isTrue(Helper.EQ(1, 1.0));
-    Expect.isTrue(Helper.EQ(1, 1.0));
-    Expect.isTrue(Helper.EQ(1.1, 1.1));
-    Expect.isTrue(Helper.EQ(1.1, 1.1));
-    Expect.isTrue(Helper.EQ(1.1, 1.1));
-
-    Expect.isFalse(Helper.GT(1, 1.2));
-    Expect.isTrue(Helper.GT(1.2, 1));
-    Expect.isTrue(Helper.GT(1.2, 1.1));
-    Expect.isTrue(Helper.GT(1.2, 1.1));
-    Expect.isTrue(Helper.GT(1.2, 1.1));
-
-    Expect.isTrue(Helper.LT(1, 1.2));
-    Expect.isFalse(Helper.LT(1.2, 1));
-    Expect.isFalse(Helper.LT(1.2, 1.1));
-    Expect.isFalse(Helper.LT(1.2, 1.1));
-    Expect.isFalse(Helper.LT(1.2, 1.1));
-
-    Expect.isFalse(Helper.GE(1.1, 1.2));
-    Expect.isFalse(Helper.GE(1.1, 1.2));
-    Expect.isTrue(Helper.GE(1.2, 1.2));
-    Expect.isTrue(Helper.GE(1.2, 1.2));
-
-    // With non-number classes.
-    Expect.isFalse(Helper.EQ(1, "eeny"));
-    Expect.isFalse(Helper.EQ("meeny", 1));
-    Expect.isFalse(Helper.EQ(1.1, "miny"));
-    Expect.isFalse(Helper.EQ("moe", 1.1));
-    Expect.isFalse(Helper.EQ(1.1, "catch"));
-    Expect.isFalse(Helper.EQ("the", 1.1));
-
-    // With null.
-    Expect.isFalse(Helper.EQ(1, null));
-    Expect.isFalse(Helper.EQ(null, 1));
-    Expect.isFalse(Helper.EQ(1.1, null));
-    Expect.isFalse(Helper.EQ(null, 1.1));
-    Expect.isFalse(Helper.EQ(1.1, null));
-    Expect.isFalse(Helper.EQ(null, 1.1));
-
-    // TODO(srdjan): Clarify behaviour of greater/less comparisons
-    // between numbers and non-numbers.
-  }
-}
-
-main() {
-  ComparisonTest.testMain();
-}
diff --git a/tests/language_2/operator/compound_assignment_test.dart b/tests/language_2/operator/compound_assignment_test.dart
deleted file mode 100644
index cc57b1a2f75..00000000000
--- a/tests/language_2/operator/compound_assignment_test.dart
+++ /dev/null
@@ -1,125 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Tests that lhs of a compound assignment is executed only once.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Indexed {
-  Indexed()
-      : _f = new List<dynamic>.filled(10, null),
-        count = 0 {
-    _f[0] = 100;
-    _f[1] = 200;
-  }
-  operator [](i) {
-    count++;
-    return _f;
-  }
-
-  var count;
-  var _f;
-}
-
-var result;
-
-class A {
-  get field {
-    result.add(1);
-    return 1;
-  }
-
-  set field(value) {}
-
-  static get static_field {
-    result.add(0);
-    return 1;
-  }
-
-  static set static_field(value) {
-    result.add(1);
-  }
-}
-
-class CompoundAssignmentOperatorTest {
-  static void testIndexed() {
-    Indexed indexed = new Indexed();
-    Expect.equals(0, indexed.count);
-    var tmp = indexed[0];
-    Expect.equals(1, indexed.count);
-    Expect.equals(100, indexed[4][0]);
-    Expect.equals(2, indexed.count);
-    Expect.equals(100, indexed[4][0]++);
-    Expect.equals(3, indexed.count);
-    Expect.equals(101, indexed[4][0]);
-    Expect.equals(4, indexed.count);
-    indexed[4][0] += 10;
-    Expect.equals(5, indexed.count);
-    Expect.equals(111, indexed[4][0]);
-    var i = 0;
-    indexed[3][i++] += 1;
-    Expect.equals(1, i);
-  }
-
-  static testIndexedMore() {
-    result = [];
-    array() {
-      result.add(0);
-      return [0];
-    }
-
-    index() {
-      result.add(1);
-      return 0;
-    }
-
-    middle() {
-      result.add(2);
-    }
-
-    sequence(a, b, c) {
-      result.add(3);
-    }
-
-    sequence(array()[index()] += 1, middle(), array()[index()] += 1);
-    Expect.listEquals([0, 1, 2, 0, 1, 3], result);
-  }
-
-  static testIndexedMoreMore() {
-    result = [];
-    middle() {
-      result.add(2);
-    }
-
-    obj() {
-      result.add(0);
-      return new A();
-    }
-
-    sequence(a, b, c) {
-      result.add(3);
-    }
-
-    sequence(obj().field += 1, middle(), obj().field += 1);
-    Expect.listEquals([0, 1, 2, 0, 1, 3], result);
-
-    result = [];
-    sequence(A.static_field++, middle(), A.static_field++);
-    Expect.listEquals([0, 1, 2, 0, 1, 3], result);
-  }
-
-  static void testMain() {
-    for (int i = 0; i < 20; i++) {
-      testIndexed();
-      testIndexedMore();
-      testIndexedMoreMore();
-    }
-  }
-}
-
-main() {
-  CompoundAssignmentOperatorTest.testMain();
-}
diff --git a/tests/language_2/operator/cond_expr_test.dart b/tests/language_2/operator/cond_expr_test.dart
deleted file mode 100644
index b76a10e8b0c..00000000000
--- a/tests/language_2/operator/cond_expr_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check that conditional expressions can contain assignment expressions.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var e1, e2;
-
-f(a) => a < 0 ? e1 = -1 : e2 = 1;
-
-main() {
-  e1 = 0;
-  e2 = 0;
-  var r = f(-100);
-  Expect.equals(-1, r);
-  Expect.equals(-1, e1);
-  Expect.equals(0, e2);
-
-  e1 = 0;
-  e2 = 0;
-  r = f(100);
-  Expect.equals(1, r);
-  Expect.equals(0, e1);
-  Expect.equals(1, e2);
-}
diff --git a/tests/language_2/operator/div_by_zero_test.dart b/tests/language_2/operator/div_by_zero_test.dart
deleted file mode 100644
index 4339aaf3e95..00000000000
--- a/tests/language_2/operator/div_by_zero_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test integer div by zero.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class DivByZeroTest {
-  static double divBy(int a, int b) {
-    var result = a / b;
-    return 1.0 * result;
-  }
-
-  static bool moustacheDivBy(int a, int b) {
-    var val = null;
-    try {
-      val = a ~/ b;
-    } catch (e) {
-      return true;
-    }
-    print("Should not have gotten: $val");
-    return false;
-  }
-
-  static void testMain() {
-    Expect.isTrue(divBy(0, 0).isNaN);
-    Expect.isTrue(moustacheDivBy(0, 0));
-  }
-}
-
-main() {
-  DivByZeroTest.testMain();
-}
diff --git a/tests/language_2/operator/div_with_power_of_two2_test.dart b/tests/language_2/operator/div_with_power_of_two2_test.dart
deleted file mode 100644
index b3db5ce5dfe..00000000000
--- a/tests/language_2/operator/div_with_power_of_two2_test.dart
+++ /dev/null
@@ -1,154 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test division by power of two.
-// Test that results before and after optimization are the same.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// [function, [list of tuples argument/result]].
-var expectedResults = [
-  [
-    divBy1,
-    [
-      [134217730, 134217730],
-      [-134217730, -134217730],
-      [10, 10],
-      [-10, -10]
-    ]
-  ],
-  [
-    divByNeg1,
-    [
-      [134217730, -134217730],
-      [-134217730, 134217730],
-      [10, -10],
-      [-10, 10]
-    ]
-  ],
-  [
-    divBy2,
-    [
-      [134217730, 67108865],
-      [-134217730, -67108865],
-      [10, 5],
-      [-10, -5]
-    ]
-  ],
-  [
-    divByNeg2,
-    [
-      [134217730, -67108865],
-      [-134217730, 67108865],
-      [10, -5],
-      [-10, 5]
-    ]
-  ],
-  [
-    divBy4,
-    [
-      [134217730, 33554432],
-      [-134217730, -33554432],
-      [10, 2],
-      [-10, -2]
-    ]
-  ],
-  [
-    divByNeg4,
-    [
-      [134217730, -33554432],
-      [-134217730, 33554432],
-      [10, -2],
-      [-10, 2]
-    ]
-  ],
-  [
-    divBy134217728,
-    [
-      [134217730, 1],
-      [-134217730, -1],
-      [10, 0],
-      [-10, 0]
-    ]
-  ],
-  [
-    divByNeg134217728,
-    [
-      [134217730, -1],
-      [-134217730, 1],
-      [10, 0],
-      [-10, 0]
-    ]
-  ],
-  // Use different functions for 64 bit arguments.
-  [
-    divBy4_,
-    [
-      [549755813990, 137438953497],
-      [-549755813990, -137438953497],
-      [288230925907525632, 72057731476881408],
-      [-288230925907525632, -72057731476881408]
-    ]
-  ],
-  [
-    divByNeg4_,
-    [
-      [549755813990, -137438953497],
-      [-549755813990, 137438953497],
-      [288230925907525632, -72057731476881408],
-      [-288230925907525632, 72057731476881408]
-    ]
-  ],
-  [
-    divBy549755813888,
-    [
-      [549755813990, 1],
-      [-549755813990, -1],
-      [288230925907525632, 524289],
-      [-288230925907525632, -524289]
-    ]
-  ],
-  [
-    divByNeg549755813888,
-    [
-      [549755813990, -1],
-      [-549755813990, 1],
-      [288230925907525632, -524289],
-      [-288230925907525632, 524289]
-    ]
-  ],
-];
-
-divBy0(a) => a ~/ 0;
-divBy1(a) => a ~/ 1;
-divByNeg1(a) => a ~/ -1;
-divBy2(a) => a ~/ 2;
-divByNeg2(a) => a ~/ -2;
-divBy4(a) => a ~/ 4;
-divByNeg4(a) => a ~/ -4;
-divBy134217728(a) => a ~/ 134217728;
-divByNeg134217728(a) => a ~/ -134217728;
-
-divBy4_(a) => a ~/ 4;
-divByNeg4_(a) => a ~/ -4;
-divBy549755813888(a) => a ~/ 549755813888;
-divByNeg549755813888(a) => a ~/ -549755813888;
-
-main() {
-  for (int i = 0; i < 20; i++) {
-    for (var e in expectedResults) {
-      Function f = e[0];
-      List values = e[1];
-      for (var v in values) {
-        int arg = v[0];
-        int res = v[1];
-        Expect.equals(res, f(arg));
-      }
-    }
-    Expect.throws<UnsupportedError>(() => divBy0(4));
-    ;
-  }
-}
diff --git a/tests/language_2/operator/div_with_power_of_two_test.dart b/tests/language_2/operator/div_with_power_of_two_test.dart
deleted file mode 100644
index 987b4676bff..00000000000
--- a/tests/language_2/operator/div_with_power_of_two_test.dart
+++ /dev/null
@@ -1,152 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test division by power of two.
-// Test that results before and after optimization are the same.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// [function, [list of tuples argument/result]].
-var expectedResults = [
-  [
-    divBy1,
-    [
-      [134217730, 134217730],
-      [-134217730, -134217730],
-      [10, 10],
-      [-10, -10]
-    ]
-  ],
-  [
-    divByNeg1,
-    [
-      [134217730, -134217730],
-      [-134217730, 134217730],
-      [10, -10],
-      [-10, 10]
-    ]
-  ],
-  [
-    divBy2,
-    [
-      [134217730, 67108865],
-      [-134217730, -67108865],
-      [10, 5],
-      [-10, -5]
-    ]
-  ],
-  [
-    divByNeg2,
-    [
-      [134217730, -67108865],
-      [-134217730, 67108865],
-      [10, -5],
-      [-10, 5]
-    ]
-  ],
-  [
-    divBy4,
-    [
-      [134217730, 33554432],
-      [-134217730, -33554432],
-      [10, 2],
-      [-10, -2]
-    ]
-  ],
-  [
-    divByNeg4,
-    [
-      [134217730, -33554432],
-      [-134217730, 33554432],
-      [10, -2],
-      [-10, 2]
-    ]
-  ],
-  [
-    divBy134217728,
-    [
-      [134217730, 1],
-      [-134217730, -1],
-      [10, 0],
-      [-10, 0]
-    ]
-  ],
-  [
-    divByNeg134217728,
-    [
-      [134217730, -1],
-      [-134217730, 1],
-      [10, 0],
-      [-10, 0]
-    ]
-  ],
-  // Use different functions for 64 bit arguments.
-  [
-    divBy4_,
-    [
-      [549755813990, 137438953497],
-      [-549755813990, -137438953497],
-      [288230925907525632, 72057731476881408],
-      [-288230925907525632, -72057731476881408]
-    ]
-  ],
-  [
-    divByNeg4_,
-    [
-      [549755813990, -137438953497],
-      [-549755813990, 137438953497],
-      [288230925907525632, -72057731476881408],
-      [-288230925907525632, 72057731476881408]
-    ]
-  ],
-  [
-    divBy549755813888,
-    [
-      [549755813990, 1],
-      [-549755813990, -1],
-      [288230925907525632, 524289],
-      [-288230925907525632, -524289]
-    ]
-  ],
-  [
-    divByNeg549755813888,
-    [
-      [549755813990, -1],
-      [-549755813990, 1],
-      [288230925907525632, -524289],
-      [-288230925907525632, 524289]
-    ]
-  ],
-];
-
-divBy0(a) => a ~/ 0;
-divBy1(a) => a ~/ 1;
-divByNeg1(a) => a ~/ -1;
-divBy2(a) => a ~/ 2;
-divByNeg2(a) => a ~/ -2;
-divBy4(a) => a ~/ 4;
-divByNeg4(a) => a ~/ -4;
-divBy134217728(a) => a ~/ 134217728;
-divByNeg134217728(a) => a ~/ -134217728;
-
-divBy4_(a) => a ~/ 4;
-divByNeg4_(a) => a ~/ -4;
-divBy549755813888(a) => a ~/ 549755813888;
-divByNeg549755813888(a) => a ~/ -549755813888;
-
-main() {
-  for (int i = 0; i < 20; i++) {
-    for (var e in expectedResults) {
-      Function f = e[0];
-      List values = e[1];
-      for (var v in values) {
-        int arg = v[0];
-        int res = v[1];
-        Expect.equals(res, f(arg));
-      }
-    }
-  }
-}
diff --git a/tests/language_2/operator/equality_test.dart b/tests/language_2/operator/equality_test.dart
deleted file mode 100644
index ddab2c46f92..00000000000
--- a/tests/language_2/operator/equality_test.dart
+++ /dev/null
@@ -1,85 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  bool _result;
-  A(this._result);
-  operator ==(x) {
-    return _result;
-  }
-}
-
-opaque(x) => [x, 1, 'y'][0]; // confuse the optimizers.
-
-class Death {
-  operator ==(x) {
-    throw 'Dead!';
-  }
-}
-
-death() => opaque(new Death());
-nullFn() => opaque(null);
-
-tests() {
-  var alwaysTrue = new A(true);
-  var alwaysFalse = new A(false);
-  Expect.isFalse(alwaysFalse == alwaysFalse);
-  Expect.isTrue(alwaysFalse != alwaysFalse);
-  Expect.isTrue(alwaysTrue == alwaysTrue);
-  Expect.isTrue(alwaysTrue == 5);
-  Expect.isFalse(alwaysTrue == null);
-  Expect.isFalse(null == alwaysTrue);
-  Expect.isTrue(alwaysTrue != null);
-  Expect.isTrue(null != alwaysTrue);
-  Expect.isTrue(null == null);
-  Expect.isFalse(null != null);
-
-  Expect.throws(() => death() == 5);
-  Expect.isFalse(death() == nullFn());
-  Expect.isFalse(nullFn() == death());
-  Expect.isTrue(nullFn() == nullFn());
-  Expect.isTrue(death() != nullFn());
-  Expect.isTrue(nullFn() != death());
-  Expect.isFalse(nullFn() != nullFn());
-
-  if (death() == nullFn()) {
-    throw "failed";
-  }
-  if (death() != nullFn()) {} else {
-    throw "failed";
-  }
-}
-
-boolEqualityPositiveA(a) => a == true;
-boolEqualityNegativeA(a) => a != true;
-
-boolEqualityPositiveB(a) => true == a;
-boolEqualityNegativeB(a) => true != a;
-
-main() {
-  for (int i = 0; i < 20; i++) {
-    tests();
-    // Do not inline calls to prevent constant folding.
-    Expect.isTrue(boolEqualityPositiveA(true));
-    Expect.isFalse(boolEqualityPositiveA(false));
-    Expect.isFalse(boolEqualityNegativeA(true));
-    Expect.isTrue(boolEqualityNegativeA(false));
-
-    Expect.isTrue(boolEqualityPositiveB(true));
-    Expect.isFalse(boolEqualityPositiveB(false));
-    Expect.isFalse(boolEqualityNegativeB(true));
-    Expect.isTrue(boolEqualityNegativeB(false));
-  }
-
-  // Deoptimize.
-  Expect.isFalse(boolEqualityPositiveA(1));
-  Expect.isTrue(boolEqualityNegativeA("hi"));
-  Expect.isFalse(boolEqualityPositiveB(2.0));
-  Expect.isTrue(boolEqualityNegativeB([]));
-}
diff --git a/tests/language_2/operator/equals_test.dart b/tests/language_2/operator/equals_test.dart
deleted file mode 100644
index a6e496ee22c..00000000000
--- a/tests/language_2/operator/equals_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to infer [:super == null:]
-// always returns an int.
-
-import 'package:expect/expect.dart';
-
-class A {
-  operator ==(other) => 42;
-  //                    ^^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] A value of type 'int' can't be assigned to a variable of type 'bool'.
-}
-
-class B extends A {
-  foo() => (super == null) + 4;
-  //                       ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '+' isn't defined for the class 'bool'.
-}
-
-main() {
-  Expect.throwsNoSuchMethodError(() => new B().foo());
-}
diff --git a/tests/language_2/operator/incr_op_test.dart b/tests/language_2/operator/incr_op_test.dart
deleted file mode 100644
index c052b0fa43a..00000000000
--- a/tests/language_2/operator/incr_op_test.dart
+++ /dev/null
@@ -1,87 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing increment operator.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  static var yy;
-  static set y(v) {
-    yy = v;
-  }
-
-  static get y {
-    return yy;
-  }
-}
-
-class IncrOpTest {
-  var x;
-  static var y;
-
-  IncrOpTest() {}
-
-  static testMain() {
-    var a = 3;
-    var c = a++ + 1;
-    Expect.equals(4, c);
-    Expect.equals(4, a);
-    c = a-- + 1;
-    Expect.equals(5, c);
-    Expect.equals(3, a);
-
-    c = --a + 1;
-    Expect.equals(3, c);
-    Expect.equals(2, a);
-
-    c = 2 + ++a;
-    Expect.equals(5, c);
-    Expect.equals(3, a);
-
-    var obj = new IncrOpTest();
-    obj.x = 100;
-    Expect.equals(100, obj.x);
-    obj.x++;
-    Expect.equals(101, obj.x);
-    Expect.equals(102, ++obj.x);
-    Expect.equals(102, obj.x++);
-    Expect.equals(103, obj.x);
-
-    A.y = 55;
-    Expect.equals(55, A.y++);
-    Expect.equals(56, A.y);
-    Expect.equals(57, ++A.y);
-    Expect.equals(57, A.y);
-    Expect.equals(56, --A.y);
-
-    IncrOpTest.y = 55;
-    Expect.equals(55, IncrOpTest.y++);
-    Expect.equals(56, IncrOpTest.y);
-    Expect.equals(57, ++IncrOpTest.y);
-    Expect.equals(57, IncrOpTest.y);
-    Expect.equals(56, --IncrOpTest.y);
-
-    var list = new List<dynamic>.filled(4, null);
-    for (int i = 0; i < list.length; i++) {
-      list[i] = i;
-    }
-    for (int i = 0; i < list.length; i++) {
-      list[i]++;
-    }
-    for (int i = 0; i < list.length; i++) {
-      Expect.equals(i + 1, list[i]);
-      ++list[i];
-    }
-    Expect.equals(1 + 2, list[1]);
-    Expect.equals(1 + 2, list[1]--);
-    Expect.equals(1 + 1, list[1]);
-    Expect.equals(1 + 0, --list[1]);
-  }
-}
-
-main() {
-  IncrOpTest.testMain();
-}
diff --git a/tests/language_2/operator/index_evaluation_order_test.dart b/tests/language_2/operator/index_evaluation_order_test.dart
deleted file mode 100644
index e66edf0084f..00000000000
--- a/tests/language_2/operator/index_evaluation_order_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class B {
-  int value;
-  List trace;
-  B(this.trace) : value = 100;
-  operator [](index) {
-    trace.add(-3);
-    trace.add(index);
-    trace.add(this.value);
-    this.value = this.value + 1;
-    return this;
-  }
-
-  operator []=(index, value) {
-    trace.add(-5);
-    trace.add(index);
-    trace.add(value.value);
-    this.value = this.value + 1;
-  }
-
-  operator +(int value) {
-    trace.add(-4);
-    trace.add(this.value);
-    trace.add(value);
-    this.value = this.value + 1;
-    return this;
-  }
-}
-
-B getB(trace) {
-  trace.add(-1);
-  return new B(trace);
-}
-
-int getIndex(trace) {
-  trace.add(-2);
-  return 42;
-}
-
-main() {
-  List trace = [];
-  getB(trace)[getIndex(trace)] += 37;
-
-  Expect.listEquals([-1, -2, -3, 42, 100, -4, 101, 37, -5, 42, 102], trace);
-}
diff --git a/tests/language_2/operator/index_test.dart b/tests/language_2/operator/index_test.dart
deleted file mode 100644
index 27039c9e53b..00000000000
--- a/tests/language_2/operator/index_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing index operators.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Helper {
-  static int fibonacci(int n) {
-    int a = 0, b = 1, i = 0;
-    while (i++ < n) {
-      a = a + b;
-      b = a - b;
-    }
-    return a;
-  }
-}
-
-class IndexTest {
-  static const ID_IDLE = 0;
-
-  static testMain() {
-    var a = new List<dynamic>.filled(10, null);
-    Expect.equals(10, a.length);
-    for (int i = 0; i < a.length; i++) {
-      a[i] = Helper.fibonacci(i);
-    }
-    a[ID_IDLE] = Helper.fibonacci(0);
-    for (int i = 2; i < a.length; i++) {
-      Expect.equals(a[i - 2] + a[i - 1], a[i]);
-    }
-    Expect.equals(515, a[3] = 515);
-  }
-}
-
-main() {
-  IndexTest.testMain();
-}
diff --git a/tests/language_2/operator/integer_division_by_zero_test.dart b/tests/language_2/operator/integer_division_by_zero_test.dart
deleted file mode 100644
index e1fc3438f5a..00000000000
--- a/tests/language_2/operator/integer_division_by_zero_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test integer division by zero.
-// Test that results before and after optimization are the same.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-num divBy(num a, num b) => a ~/ b;
-
-main() {
-  // Dividing integers by zero is an error.
-  Expect.throws<Error>(() => divBy(1, 0));
-  Expect.throws<Error>(() => divBy(0, 0));
-
-  // Dividing doubles by zero is an error (result is never finite).
-  Expect.throws<Error>(() => divBy(1.0, 0));
-  Expect.throws<Error>(() => divBy(1, 0.0));
-  Expect.throws<Error>(() => divBy(1, -0.0));
-  Expect.throws<Error>(() => divBy(1.0, 0.0));
-  // Double division yielding infinity is an error, even when not dividing
-  // by zero.
-  Expect.throws<Error>(() => divBy(double.maxFinite, 0.5));
-  Expect.throws<Error>(() => divBy(1, double.minPositive));
-  Expect.throws<Error>(() => divBy(double.infinity, 2.0));
-  Expect.throws<Error>(() => divBy(-double.maxFinite, 0.5));
-  Expect.throws<Error>(() => divBy(-1, double.minPositive));
-  Expect.throws<Error>(() => divBy(-double.infinity, 2.0));
-  // Double division yielding NaN is an error.
-  Expect.throws<Error>(() => divBy(0.0, 0.0));
-  Expect.throws<Error>(() => divBy(double.infinity, double.infinity));
-  Expect.throws<Error>(() => divBy(-0.0, 0.0));
-  Expect.throws<Error>(() => divBy(-double.infinity, double.infinity));
-
-  // Truncating division containing a double truncates to max integer
-  // on non-web.
-  num one = 1;
-  if (one is! double) {
-    var minInt = -0x8000000000000000;
-    var maxInt = minInt - 1;
-    Expect.isTrue(maxInt > 0);
-    // Not on web.
-    Expect.equals(divBy(double.maxFinite, 2), maxInt);
-    Expect.equals(divBy(-double.maxFinite, 2), minInt);
-    Expect.equals(divBy(maxInt, 0.25), maxInt);
-    Expect.equals(divBy(minInt, 0.25), minInt);
-  }
-}
diff --git a/tests/language_2/operator/invalid_assignment_to_postfix_increment_runtime_test.dart b/tests/language_2/operator/invalid_assignment_to_postfix_increment_runtime_test.dart
deleted file mode 100644
index eff83d4a9d7..00000000000
--- a/tests/language_2/operator/invalid_assignment_to_postfix_increment_runtime_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-void f(int x, int y) {
-
-
-
-}
-
-main() {
-  f(1, 2);
-}
diff --git a/tests/language_2/operator/invalid_assignment_to_postfix_increment_test.dart b/tests/language_2/operator/invalid_assignment_to_postfix_increment_test.dart
deleted file mode 100644
index 62d8eb06fa5..00000000000
--- a/tests/language_2/operator/invalid_assignment_to_postfix_increment_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-void f(int x, int y) {
-  x++ = y;
-//^^^
-// [analyzer] SYNTACTIC_ERROR.ILLEGAL_ASSIGNMENT_TO_NON_ASSIGNABLE
-//^^^
-// [analyzer] SYNTACTIC_ERROR.MISSING_ASSIGNABLE_SELECTOR
-// ^
-// [cfe] Illegal assignment to non-assignable expression.
-  x++ += y;
-//^^^
-// [analyzer] SYNTACTIC_ERROR.ILLEGAL_ASSIGNMENT_TO_NON_ASSIGNABLE
-//^^^
-// [analyzer] SYNTACTIC_ERROR.MISSING_ASSIGNABLE_SELECTOR
-// ^
-// [cfe] Illegal assignment to non-assignable expression.
-  x++ ??= y;
-//^^^
-// [analyzer] SYNTACTIC_ERROR.ILLEGAL_ASSIGNMENT_TO_NON_ASSIGNABLE
-//^^^
-// [analyzer] SYNTACTIC_ERROR.MISSING_ASSIGNABLE_SELECTOR
-// ^
-// [cfe] Illegal assignment to non-assignable expression.
-}
-
-main() {
-  f(1, 2);
-}
diff --git a/tests/language_2/operator/invalid_operators_test.dart b/tests/language_2/operator/invalid_operators_test.dart
deleted file mode 100644
index fdea2eed450..00000000000
--- a/tests/language_2/operator/invalid_operators_test.dart
+++ /dev/null
@@ -1,602 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Operators1 {
-  operator ==() => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-  // [cfe] Operator '==' should have exactly one parameter.
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] The method 'Operators1.==' has fewer positional arguments than those of overridden method 'Object.=='.
-  operator <() => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '<' should have exactly one parameter.
-  operator >() => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '>' should have exactly one parameter.
-  operator <=() => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '<=' should have exactly one parameter.
-  operator >=() => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '>=' should have exactly one parameter.
-  operator +() => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '+' should have exactly one parameter.
-  operator /() => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '/' should have exactly one parameter.
-  operator ~/() => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '~/' should have exactly one parameter.
-  operator *() => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '*' should have exactly one parameter.
-  operator %() => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '%' should have exactly one parameter.
-  operator |() => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '|' should have exactly one parameter.
-  operator ^() => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '^' should have exactly one parameter.
-  operator &() => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '&' should have exactly one parameter.
-  operator <<() => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '<<' should have exactly one parameter.
-  operator >>() => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '>>' should have exactly one parameter.
-  operator []=(a, b, c) => true;
-  //       ^^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '[]=' should have exactly two parameters.
-  operator []() => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '[]' should have exactly one parameter.
-  operator ~(a) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '~' shouldn't have any parameters.
-}
-
-class Operators2 {
-  operator ==(a, b) => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-  // [cfe] Operator '==' should have exactly one parameter.
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] The method 'Operators2.==' has more required arguments than those of overridden method 'Object.=='.
-  operator <(a, b) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '<' should have exactly one parameter.
-  operator >(a, b) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '>' should have exactly one parameter.
-  operator <=(a, b) => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '<=' should have exactly one parameter.
-  operator >=(a, b) => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '>=' should have exactly one parameter.
-  operator -(a, b) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '-' should have zero or one parameter.
-  operator +(a, b) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '+' should have exactly one parameter.
-  operator /(a, b) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '/' should have exactly one parameter.
-  operator ~/(a, b) => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '~/' should have exactly one parameter.
-  operator *(a, b) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '*' should have exactly one parameter.
-  operator %(a, b) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '%' should have exactly one parameter.
-  operator |(a, b) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '|' should have exactly one parameter.
-  operator ^(a, b) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '^' should have exactly one parameter.
-  operator &(a, b) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '&' should have exactly one parameter.
-  operator <<(a, b) => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '<<' should have exactly one parameter.
-  operator >>(a, b) => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '>>' should have exactly one parameter.
-  operator []=(a, b, c) => true;
-  //       ^^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '[]=' should have exactly two parameters.
-  operator [](a, b) => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '[]' should have exactly one parameter.
-  operator ~(a, b) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '~' shouldn't have any parameters.
-}
-
-class Operators3 {
-  operator ==([a]) => true;
-  //           ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator <([a]) => true;
-  //          ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator >([a]) => true;
-  //          ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator <=([a]) => true;
-  //           ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator >=([a]) => true;
-  //           ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator -([a]) => true;
-  //          ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator +([a]) => true;
-  //          ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator /([a]) => true;
-  //          ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator ~/([a]) => true;
-  //           ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator *([a]) => true;
-  //          ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator %([a]) => true;
-  //          ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator |([a]) => true;
-  //          ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator ^([a]) => true;
-  //          ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator &([a]) => true;
-  //          ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator <<([a]) => true;
-  //           ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator >>([a]) => true;
-  //           ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator []=([a, b]) => true;
-  //            ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  //               ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator []([a]) => true;
-  //           ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator ~([a]) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '~' shouldn't have any parameters.
-}
-
-class Operators4 {
-  operator ==({a}) => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-  // [cfe] The method 'Operators4.==' has fewer positional arguments than those of overridden method 'Object.=='.
-  //           ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator <({a}) => true;
-  //          ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator >({a}) => true;
-  //          ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator <=({a}) => true;
-  //           ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator >=({a}) => true;
-  //           ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator -({a}) => true;
-  //          ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator +({a}) => true;
-  //          ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator /({a}) => true;
-  //          ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator ~/({a}) => true;
-  //           ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator *({a}) => true;
-  //          ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator %({a}) => true;
-  //          ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator |({a}) => true;
-  //          ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator ^({a}) => true;
-  //          ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator &({a}) => true;
-  //          ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator <<({a}) => true;
-  //           ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator >>({a}) => true;
-  //           ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator []=({a, b}) => true;
-  //            ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  //               ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator []({a}) => true;
-  //           ^
-  // [analyzer] COMPILE_TIME_ERROR.OPTIONAL_PARAMETER_IN_OPERATOR
-  // [cfe] An operator can't have optional parameters.
-  operator ~({a}) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '~' shouldn't have any parameters.
-}
-
-class Operators5 {
-  operator ==(a, [b]) => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '==' should have exactly one parameter.
-  operator <(a, [b]) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '<' should have exactly one parameter.
-  operator >(a, [b]) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '>' should have exactly one parameter.
-  operator <=(a, [b]) => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '<=' should have exactly one parameter.
-  operator >=(a, [b]) => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '>=' should have exactly one parameter.
-  operator -(a, [b]) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '-' should have zero or one parameter.
-  operator +(a, [b]) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '+' should have exactly one parameter.
-  operator /(a, [b]) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '/' should have exactly one parameter.
-  operator ~/(a, [b]) => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '~/' should have exactly one parameter.
-  operator *(a, [b]) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '*' should have exactly one parameter.
-  operator %(a, [b]) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '%' should have exactly one parameter.
-  operator |(a, [b]) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '|' should have exactly one parameter.
-  operator ^(a, [b]) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '^' should have exactly one parameter.
-  operator &(a, [b]) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '&' should have exactly one parameter.
-  operator <<(a, [b]) => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '<<' should have exactly one parameter.
-  operator >>(a, [b]) => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '>>' should have exactly one parameter.
-  operator []=(a, b, [c]) => true;
-  //       ^^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '[]=' should have exactly two parameters.
-  operator [](a, [b]) => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '[]' should have exactly one parameter.
-  operator ~(a, [b]) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '~' shouldn't have any parameters.
-}
-
-class Operators6 {
-  operator ==(a, {b}) => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '==' should have exactly one parameter.
-  operator <(a, {b}) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '<' should have exactly one parameter.
-  operator >(a, {b}) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '>' should have exactly one parameter.
-  operator <=(a, {b}) => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '<=' should have exactly one parameter.
-  operator >=(a, {b}) => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '>=' should have exactly one parameter.
-  operator -(a, {b}) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '-' should have zero or one parameter.
-  operator +(a, {b}) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '+' should have exactly one parameter.
-  operator /(a, {b}) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '/' should have exactly one parameter.
-  operator ~/(a, {b}) => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '~/' should have exactly one parameter.
-  operator *(a, {b}) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '*' should have exactly one parameter.
-  operator %(a, {b}) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '%' should have exactly one parameter.
-  operator |(a, {b}) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '|' should have exactly one parameter.
-  operator ^(a, {b}) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '^' should have exactly one parameter.
-  operator &(a, {b}) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '&' should have exactly one parameter.
-  operator <<(a, {b}) => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '<<' should have exactly one parameter.
-  operator >>(a, {b}) => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '>>' should have exactly one parameter.
-  operator []=(a, b, {c}) => true;
-  //       ^^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '[]=' should have exactly two parameters.
-  operator [](a, {b}) => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '[]' should have exactly one parameter.
-  operator ~(a, {b}) => true;
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_OPERATOR
-  // [cfe] Operator '~' shouldn't have any parameters.
-}
-
-class Operators7 {
-  operator ==<T>(a) => true;
-  //       ^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-  // [cfe] Can't infer types for '==' as the overridden members don't have a combined signature.
-  //       ^
-  // [cfe] Declared type variables of 'Operators7.==' doesn't match those on overridden method 'Object.=='.
-  //         ^^^
-  // [analyzer] SYNTACTIC_ERROR.TYPE_PARAMETER_ON_OPERATOR
-  //          ^
-  // [cfe] Types parameters aren't allowed when defining an operator.
-  operator ><T>(a) => true;
-  //        ^^^
-  // [analyzer] SYNTACTIC_ERROR.TYPE_PARAMETER_ON_OPERATOR
-  //         ^
-  // [cfe] Types parameters aren't allowed when defining an operator.
-  operator <=<T>(a) => true;
-  //         ^^^
-  // [analyzer] SYNTACTIC_ERROR.TYPE_PARAMETER_ON_OPERATOR
-  //          ^
-  // [cfe] Types parameters aren't allowed when defining an operator.
-  operator >=<T>(a) => true;
-  //         ^^^
-  // [analyzer] SYNTACTIC_ERROR.TYPE_PARAMETER_ON_OPERATOR
-  //          ^
-  // [cfe] Types parameters aren't allowed when defining an operator.
-  operator -<T>() => true;
-  //        ^^^
-  // [analyzer] SYNTACTIC_ERROR.TYPE_PARAMETER_ON_OPERATOR
-  //         ^
-  // [cfe] Types parameters aren't allowed when defining an operator.
-  operator -<T>(a) => true;
-  //        ^^^
-  // [analyzer] SYNTACTIC_ERROR.TYPE_PARAMETER_ON_OPERATOR
-  //         ^
-  // [cfe] Types parameters aren't allowed when defining an operator.
-  operator +<T>(a) => true;
-  //        ^^^
-  // [analyzer] SYNTACTIC_ERROR.TYPE_PARAMETER_ON_OPERATOR
-  //         ^
-  // [cfe] Types parameters aren't allowed when defining an operator.
-  operator /<T>(a) => true;
-  //        ^^^
-  // [analyzer] SYNTACTIC_ERROR.TYPE_PARAMETER_ON_OPERATOR
-  //         ^
-  // [cfe] Types parameters aren't allowed when defining an operator.
-  operator ~/<T>(a) => true;
-  //         ^^^
-  // [analyzer] SYNTACTIC_ERROR.TYPE_PARAMETER_ON_OPERATOR
-  //          ^
-  // [cfe] Types parameters aren't allowed when defining an operator.
-  operator *<T>(a) => true;
-  //        ^^^
-  // [analyzer] SYNTACTIC_ERROR.TYPE_PARAMETER_ON_OPERATOR
-  //         ^
-  // [cfe] Types parameters aren't allowed when defining an operator.
-  operator %<T>(a) => true;
-  //        ^^^
-  // [analyzer] SYNTACTIC_ERROR.TYPE_PARAMETER_ON_OPERATOR
-  //         ^
-  // [cfe] Types parameters aren't allowed when defining an operator.
-  operator |<T>(a) => true;
-  //        ^^^
-  // [analyzer] SYNTACTIC_ERROR.TYPE_PARAMETER_ON_OPERATOR
-  //         ^
-  // [cfe] Types parameters aren't allowed when defining an operator.
-  operator ^<T>(a) => true;
-  //        ^^^
-  // [analyzer] SYNTACTIC_ERROR.TYPE_PARAMETER_ON_OPERATOR
-  //         ^
-  // [cfe] Types parameters aren't allowed when defining an operator.
-  operator &<T>(a) => true;
-  //        ^^^
-  // [analyzer] SYNTACTIC_ERROR.TYPE_PARAMETER_ON_OPERATOR
-  //         ^
-  // [cfe] Types parameters aren't allowed when defining an operator.
-  operator <<<T>(a) => true;
-  //         ^^^
-  // [analyzer] SYNTACTIC_ERROR.TYPE_PARAMETER_ON_OPERATOR
-  //          ^
-  // [cfe] Types parameters aren't allowed when defining an operator.
-  operator >><T>(a) => true;
-  //         ^^^
-  // [analyzer] SYNTACTIC_ERROR.TYPE_PARAMETER_ON_OPERATOR
-  //          ^
-  // [cfe] Types parameters aren't allowed when defining an operator.
-  operator []=<T>(a, b) => true;
-  //          ^^^
-  // [analyzer] SYNTACTIC_ERROR.TYPE_PARAMETER_ON_OPERATOR
-  //           ^
-  // [cfe] Types parameters aren't allowed when defining an operator.
-  operator []<T>(a) => true;
-  //         ^^^
-  // [analyzer] SYNTACTIC_ERROR.TYPE_PARAMETER_ON_OPERATOR
-  //          ^
-  // [cfe] Types parameters aren't allowed when defining an operator.
-  operator ~<T, S>() => true;
-  //        ^^^^^^
-  // [analyzer] SYNTACTIC_ERROR.TYPE_PARAMETER_ON_OPERATOR
-  //         ^
-  // [cfe] Types parameters aren't allowed when defining an operator.
-}
-
-class Operators8 {
-  /*space*/ int operator []=(a, b) {}
-  //        ^^^
-  // [analyzer] COMPILE_TIME_ERROR.NON_VOID_RETURN_FOR_OPERATOR
-  // [cfe] The return type of the operator []= must be 'void'.
-}
-
-main() {}
diff --git a/tests/language_2/operator/left_shift_test.dart b/tests/language_2/operator/left_shift_test.dart
deleted file mode 100644
index 303747a776f..00000000000
--- a/tests/language_2/operator/left_shift_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  for (int i = 0; i < 80; i++) {
-    var a = -1 << i;
-    var b = -1;
-    Expect.equals(1 << i, a ~/ b);
-  }
-}
diff --git a/tests/language_2/operator/literal_unary_plus_test.dart b/tests/language_2/operator/literal_unary_plus_test.dart
deleted file mode 100644
index 0ce8094db02..00000000000
--- a/tests/language_2/operator/literal_unary_plus_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// There is no unary plus operator in Dart.
-
-main() {
-  var a = + 1; //      //# 01: syntax error
-  var x = +"foo"; //   //# 02: syntax error
-  var x = + "foo"; //  //# 03: syntax error
-}
diff --git a/tests/language_2/operator/logical_expression2_test.dart b/tests/language_2/operator/logical_expression2_test.dart
deleted file mode 100644
index d1f25cd0db7..00000000000
--- a/tests/language_2/operator/logical_expression2_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Regression test for issue 17149.
-
-int globalCounter = 0;
-
-void nonInlinedUse(Object object) {
-  if (new DateTime.now().millisecondsSinceEpoch == 42) nonInlinedUse(object);
-  if (object is! String) globalCounter++;
-}
-
-int confuse(x) {
-  if (new DateTime.now().millisecondsSinceEpoch == 42) return confuse(x - 1);
-  return x;
-}
-
-main() {
-  var o = ["foo", 499][confuse(1)];
-
-  // The `o is String` check in the rhs of the logical or must not be
-  // propagated to the `if` body.
-  if ((o is num) || (o is String && true)) {
-    nonInlinedUse(o);
-  }
-  Expect.equals(1, globalCounter);
-}
diff --git a/tests/language_2/operator/logical_expression3_test.dart b/tests/language_2/operator/logical_expression3_test.dart
deleted file mode 100644
index 04512ca1761..00000000000
--- a/tests/language_2/operator/logical_expression3_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-bool nonInlinedNumTypeCheck(Object object) {
-  if (new DateTime.now().millisecondsSinceEpoch == 42) {
-    return nonInlinedNumTypeCheck(object);
-  }
-  return object is num;
-}
-
-int confuse(x) {
-  if (new DateTime.now().millisecondsSinceEpoch == 42) return confuse(x - 1);
-  return x;
-}
-
-main() {
-  var o = ["foo", 499][confuse(0)];
-
-  // When the lhs of a logical or fails, it must not assume that all negative is
-  // checks in it, have failed.
-  // Here, the `o is! num` check succeeds, but the length test failed.
-  if ((o is! num && o.length == 4) || (nonInlinedNumTypeCheck(o))) {
-    //                ^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'length' isn't defined for the class 'Object'.
-    Expect.fail("Type-check failed");
-  }
-}
diff --git a/tests/language_2/operator/logical_expression4_test.dart b/tests/language_2/operator/logical_expression4_test.dart
deleted file mode 100644
index 5009722be40..00000000000
--- a/tests/language_2/operator/logical_expression4_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-bool nonInlinedNumTypeCheck(Object object) {
-  if (new DateTime.now().millisecondsSinceEpoch == 42) {
-    return nonInlinedNumTypeCheck(object);
-  }
-  return object is num;
-}
-
-int confuse(x) {
-  if (new DateTime.now().millisecondsSinceEpoch == 42) return confuse(x - 1);
-  return x;
-}
-
-main() {
-  var o = ["foo", 499][confuse(0)];
-
-  // The is-checks in the '!' must not be propagated to the if-body.
-  // This was a bug in dart2js.
-  if (!(o is num && o is num)) {
-    Expect.isFalse((nonInlinedNumTypeCheck(o)));
-  }
-}
diff --git a/tests/language_2/operator/logical_expression5_test.dart b/tests/language_2/operator/logical_expression5_test.dart
deleted file mode 100644
index a3ab83b9bb5..00000000000
--- a/tests/language_2/operator/logical_expression5_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-bool nonInlinedNumTypeCheck(Object object) {
-  if (new DateTime.now().millisecondsSinceEpoch == 42) {
-    return nonInlinedNumTypeCheck(object);
-  }
-  return object is num;
-}
-
-bool nonInlinedStringTypeCheck(Object object) {
-  if (new DateTime.now().millisecondsSinceEpoch == 42) {
-    return nonInlinedStringTypeCheck(object);
-  }
-  return object is String;
-}
-
-int confuse(x) {
-  if (new DateTime.now().millisecondsSinceEpoch == 42) return confuse(x - 1);
-  return x;
-}
-
-main() {
-  var o = ["foo", 499][confuse(0)];
-
-  // The is-checks in the '!' must not be propagated to the if-body, but
-  // the second is-check should.
-  if (!(o is num) && o is String) {
-    Expect.isFalse((nonInlinedNumTypeCheck(o)));
-    Expect.isTrue((nonInlinedStringTypeCheck(o)));
-  }
-}
diff --git a/tests/language_2/operator/logical_expression_test.dart b/tests/language_2/operator/logical_expression_test.dart
deleted file mode 100644
index 0eceb92ba2c..00000000000
--- a/tests/language_2/operator/logical_expression_test.dart
+++ /dev/null
@@ -1,121 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing if statement.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// For logical-or conditions dart2js sometimes inlined expressions, leading to
-// completely broken programs.
-
-int globalCounter = 0;
-
-falseWithSideEffect() {
-  bool confuse() => new DateTime.now().millisecondsSinceEpoch == 42;
-
-  var result = confuse();
-
-  // Make it harder to inline.
-  if (result) {
-    try {
-      try {
-        if (confuse()) falseWithSideEffect();
-        if (confuse()) return 499;
-      } catch (e) {
-        rethrow;
-      }
-    } catch (e) {
-      rethrow;
-    }
-  }
-  globalCounter++;
-  return result;
-}
-
-falseWithoutSideEffect() {
-  bool confuse() => new DateTime.now().millisecondsSinceEpoch == 42;
-
-  var result = confuse();
-
-  // Make it harder to inline.
-  if (result) {
-    try {
-      try {
-        if (confuse()) falseWithSideEffect();
-        if (confuse()) return 499;
-      } catch (e) {
-        rethrow;
-      }
-    } catch (e) {
-      rethrow;
-    }
-  }
-  return result;
-}
-
-testLogicalOr() {
-  globalCounter = 0;
-  bool cond1 = falseWithSideEffect();
-  if (cond1 || falseWithoutSideEffect()) Expect.fail("must be false");
-  if (cond1 || falseWithoutSideEffect()) Expect.fail("must be false");
-  if (cond1 || falseWithoutSideEffect()) Expect.fail("must be false");
-  Expect.equals(1, globalCounter);
-
-  cond1 = (falseWithSideEffect() == 499);
-  if (cond1 || falseWithoutSideEffect()) Expect.fail("must be false");
-  if (cond1 || falseWithoutSideEffect()) Expect.fail("must be false");
-  if (cond1 || falseWithoutSideEffect()) Expect.fail("must be false");
-  Expect.equals(2, globalCounter);
-}
-
-List globalList = [];
-void testLogicalOr2() {
-  globalList.clear();
-  testValueOr([]);
-  testValueOr(null);
-  Expect.listEquals([1, 2, 3], globalList);
-}
-
-void testValueOr(List list) {
-  if (list == null) globalList.add(1);
-  if (list == null || list.contains("2")) globalList.add(2);
-  if (list == null || list.contains("3")) globalList.add(3);
-}
-
-testLogicalAnd() {
-  globalCounter = 0;
-  bool cond1 = falseWithSideEffect();
-  if (cond1 && falseWithoutSideEffect()) Expect.fail("must be false");
-  if (cond1 && falseWithoutSideEffect()) Expect.fail("must be false");
-  if (cond1 && falseWithoutSideEffect()) Expect.fail("must be false");
-  Expect.equals(1, globalCounter);
-
-  cond1 = (falseWithSideEffect() == 499);
-  if (cond1 && falseWithoutSideEffect()) Expect.fail("must be false");
-  if (cond1 && falseWithoutSideEffect()) Expect.fail("must be false");
-  if (cond1 && falseWithoutSideEffect()) Expect.fail("must be false");
-  Expect.equals(2, globalCounter);
-}
-
-void testLogicalAnd2() {
-  globalList.clear();
-  testValueAnd([]);
-  testValueAnd(null);
-  Expect.listEquals([1, 2, 3], globalList);
-}
-
-void testValueAnd(List list) {
-  if (list == null) globalList.add(1);
-  if (list == null && globalList.contains(1)) globalList.add(2);
-  if (list == null && globalList.contains(1)) globalList.add(3);
-}
-
-main() {
-  testLogicalOr();
-  testLogicalOr2();
-
-  testLogicalAnd();
-  testLogicalAnd2();
-}
diff --git a/tests/language_2/operator/mint_arithmetic_test.dart b/tests/language_2/operator/mint_arithmetic_test.dart
deleted file mode 100644
index 424f1394397..00000000000
--- a/tests/language_2/operator/mint_arithmetic_test.dart
+++ /dev/null
@@ -1,97 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test arithmetic on 64-bit integers.
-
-test_and_1() {
-  try {
-    // Avoid optimizing this function.
-    f(a, b) {
-      var s = b;
-      var t = a & s;
-      return t == b;
-    }
-
-    var x = 0xffffffff;
-    for (var i = 0; i < 20; i++) f(x, 0);
-    Expect.equals(true, f(x, 0));
-    Expect.equals(false, f(x, -1)); // Triggers deoptimization.
-  } finally {}
-}
-
-test_and_2() {
-  try {
-    // Avoid optimizing this function.
-    f(a, b) {
-      return a & b;
-    }
-
-    var x = 0xffffffff;
-    for (var i = 0; i < 20; i++) f(x, x);
-    Expect.equals(x, f(x, x));
-    Expect.equals(1234, f(0xffffffff, 1234));
-    Expect.equals(0x100000001, f(0x100000001, -1));
-    Expect.equals(-0x40000000, f(-0x40000000, -1));
-    Expect.equals(0x40000000, f(0x40000000, -1));
-    Expect.equals(0x3fffffff, f(0x3fffffff, -1));
-  } finally {}
-}
-
-test_xor_1() {
-  try {
-    // Avoid optimizing this function.
-    f(a, b) {
-      var s = b;
-      var t = a ^ s;
-      return t;
-    }
-
-    var x = 0xffffffff;
-    for (var i = 0; i < 20; i++) f(x, x);
-    Expect.equals(0, f(x, x));
-    Expect.equals(-x - 1, f(x, -1));
-    var y = 0xffffffffffffffff;
-    Expect.equals(-y - 1, f(y, -1)); // Triggers deoptimization.
-  } finally {}
-}
-
-test_or_1() {
-  try {
-    // Avoid optimizing this function.
-    f(a, b) {
-      var s = b;
-      var t = a | s;
-      return t;
-    }
-
-    var x = 0xffffffff;
-    for (var i = 0; i < 20; i++) f(x, x);
-    Expect.equals(x, f(x, x));
-    Expect.equals(-1, f(x, -1));
-    var y = 0xffffffffffffffff;
-    Expect.equals(-1, f(y, -1)); // Triggers deoptimization.
-  } finally {}
-}
-
-test_func(x, y) => (x & y) + 1.0;
-
-test_mint_double_op() {
-  for (var i = 0; i < 20; i++) test_func(4294967295, 1);
-  Expect.equals(2.0, test_func(4294967295, 1));
-}
-
-main() {
-  for (var i = 0; i < 5; i++) {
-    test_and_1();
-    test_and_2();
-    test_xor_1();
-    test_or_1();
-    test_mint_double_op();
-  }
-}
diff --git a/tests/language_2/operator/modulo_test.dart b/tests/language_2/operator/modulo_test.dart
deleted file mode 100644
index 417c55673fc..00000000000
--- a/tests/language_2/operator/modulo_test.dart
+++ /dev/null
@@ -1,97 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test optimization of modulo operator on Smi.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  // Prime IC cache.
-  noDom(1);
-  noDom(-1);
-  for (int i = -30; i < 30; i++) {
-    Expect.equals(i % 256, foo(i));
-    Expect.equals(i % -256, boo(i));
-    Expect.throws(() => hoo(i), (e) => e is UnsupportedError);
-
-    Expect.equals(i ~/ 254 + i % 254, fooTwo(i));
-    Expect.equals(i ~/ -254 + i % -254, booTwo(i));
-    Expect.throws(() => hooTwo(i), (e) => e is UnsupportedError);
-    if (i > 0) {
-      Expect.equals(i % 10, noDom(i));
-    } else {
-      Expect.equals(i ~/ 10, noDom(i));
-    }
-    Expect.equals((i ~/ 10) + (i % 10) + (i % 10), threeOp(i));
-    Expect.equals((i ~/ 10) + (i ~/ 12) + (i % 10) + (i % 12), fourOp(i));
-
-    // Zero test is done outside the loop.
-    if (i < 0) {
-      Expect.equals(i % -i, foo2(i));
-      Expect.equals(i ~/ -i + i % -i, fooTwo2(i));
-    } else if (i > 0) {
-      Expect.equals(i % i, foo2(i));
-      Expect.equals(i ~/ i + i % i, fooTwo2(i));
-    }
-  }
-  Expect.throws(() => foo2(0), (e) => e is UnsupportedError);
-  Expect.throws(() => fooTwo2(0), (e) => e is UnsupportedError);
-}
-
-foo(i) => i % 256; // This will get optimized to AND instruction.
-boo(i) => i % -256;
-hoo(i) => i % 0;
-
-fooTwo(i) => i ~/ 254 + i % 254;
-booTwo(i) => i ~/ -254 + i % -254;
-hooTwo(i) => i ~/ 0 + i % 0;
-
-noDom(a) {
-  var x;
-  if (a > 0) {
-    x = a % 10;
-  } else {
-    x = a ~/ 10;
-  }
-  return x;
-}
-
-threeOp(a) {
-  var x = a ~/ 10;
-  var y = a % 10;
-  var z = a % 10;
-  return x + y + z;
-}
-
-fourOp(a) {
-  var x0 = a ~/ 10;
-  var x1 = a ~/ 12;
-  var y0 = a % 10;
-  var y1 = a % 12;
-  return x0 + x1 + y0 + y1;
-}
-
-foo2(i) {
-  // Make sure x has a range computed.
-  var x = 0;
-  if (i < 0) {
-    x = -i;
-  } else {
-    x = i;
-  }
-  return i % x;
-}
-
-fooTwo2(i) {
-  // Make sure x has a range computed.
-  var x = 0;
-  if (i < 0) {
-    x = -i;
-  } else {
-    x = i;
-  }
-  return i ~/ x + i % x;
-}
diff --git a/tests/language_2/operator/mul_recipr_test.dart b/tests/language_2/operator/mul_recipr_test.dart
deleted file mode 100644
index 516797cc0de..00000000000
--- a/tests/language_2/operator/mul_recipr_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program checking that optimizations are not too aggressive and
-// incorrect:
-// - (a * (1.0 / b))
-//
-// VMOptions=--optimization-counter-threshold=8 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var xx = 23.0;
-
-main() {
-  xx = 1e-6;
-  scaleIt(1e-310);
-  Expect.isTrue(xx.isInfinite);
-  for (int i = 0; i < 10; i++) {
-    xx = 24.0;
-    scaleIt(6.0);
-    Expect.equals(4.0, xx);
-  }
-  xx = 1e-6;
-  scaleIt(1e-310);
-  Expect.isTrue(xx.isInfinite);
-}
-
-scaleIt(double b) {
-  scale(1.0 / b);
-}
-
-scale(a) {
-  xx *= a;
-}
diff --git a/tests/language_2/operator/multi_assign_test.dart b/tests/language_2/operator/multi_assign_test.dart
deleted file mode 100644
index d3eee4a4fe4..00000000000
--- a/tests/language_2/operator/multi_assign_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program testing multiple assignment.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class MultiAssignTest {
-  static testMain() {
-    var i, j, k;
-    i = j = k = 11;
-    Expect.equals(11, i);
-    Expect.equals(11, j);
-    Expect.equals(11, k);
-
-    var m;
-    var n = m = k = 55;
-    Expect.equals(55, m);
-    Expect.equals(55, n);
-    Expect.equals(55, k);
-  }
-}
-
-main() {
-  MultiAssignTest.testMain();
-}
diff --git a/tests/language_2/operator/negate_and_method_negate_test.dart b/tests/language_2/operator/negate_and_method_negate_test.dart
deleted file mode 100644
index 2248dc35276..00000000000
--- a/tests/language_2/operator/negate_and_method_negate_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// This checks that it is possible to have a method named negate as
-// well as unary- operator.
-
-class Foo {
-  operator -() => 42;
-  negate() => 87;
-}
-
-main() {
-  Expect.equals(42, -new Foo());
-  Expect.equals(87, new Foo().negate());
-}
diff --git a/tests/language_2/operator/operations_on_non_num_operand_test.dart b/tests/language_2/operator/operations_on_non_num_operand_test.dart
deleted file mode 100644
index 4b90d419e4b..00000000000
--- a/tests/language_2/operator/operations_on_non_num_operand_test.dart
+++ /dev/null
@@ -1,147 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Regression test for dart2js that used to miscompile boolean and operations
-/// if one of the operands was an int and the other was not (issue 22427).
-///
-/// Extended to all operations as there is a risk of similar bugs with other
-/// operators, e.g. `a % 2` _looks_ like it might be 0 or 1.
-
-import "package:expect/expect.dart";
-
-@pragma('dart2js:assumeDynamic')
-@pragma('dart2js:noInline')
-confuse(x) => x;
-
-class Thing1 {
-  operator &(b) => this;
-  operator |(b) => this;
-  operator ^(b) => this;
-  operator <<(b) => this;
-  operator >>(b) => this;
-
-  operator +(b) => this;
-  operator -(b) => this;
-  operator *(b) => this;
-  operator /(b) => this;
-  operator ~/(b) => this;
-  operator %(b) => this;
-  remainder(b) => this;
-
-  operator <(b) => this;
-  operator <=(b) => this;
-  operator >(b) => this;
-  operator >=(b) => this;
-}
-
-class Thing2 {
-  @pragma('dart2js:noInline')
-  operator &(b) => this;
-  @pragma('dart2js:noInline')
-  operator |(b) => this;
-  @pragma('dart2js:noInline')
-  operator ^(b) => this;
-  @pragma('dart2js:noInline')
-  operator <<(b) => this;
-  @pragma('dart2js:noInline')
-  operator >>(b) => this;
-
-  @pragma('dart2js:noInline')
-  operator +(b) => this;
-  @pragma('dart2js:noInline')
-  operator -(b) => this;
-  @pragma('dart2js:noInline')
-  operator *(b) => this;
-  @pragma('dart2js:noInline')
-  operator /(b) => this;
-  @pragma('dart2js:noInline')
-  operator ~/(b) => this;
-  @pragma('dart2js:noInline')
-  operator %(b) => this;
-  @pragma('dart2js:noInline')
-  remainder(b) => this;
-
-  @pragma('dart2js:noInline')
-  operator <(b) => this;
-  @pragma('dart2js:noInline')
-  operator <=(b) => this;
-  @pragma('dart2js:noInline')
-  operator >(b) => this;
-  @pragma('dart2js:noInline')
-  operator >=(b) => this;
-}
-
-confused() {
-  var a = new Thing1();
-  Expect.equals(a, confuse(a) & 5 & 2);
-  Expect.equals(a, confuse(a) | 5 | 2);
-  Expect.equals(a, confuse(a) ^ 5 ^ 2);
-  Expect.equals(a, confuse(a) << 5 << 2);
-  Expect.equals(a, confuse(a) >> 5 >> 2);
-
-  Expect.equals(a, confuse(a) + 5 + 2);
-  Expect.equals(a, confuse(a) - 5 - 2);
-  Expect.equals(a, confuse(a) * 5 * 2);
-  Expect.equals(a, confuse(a) / 5 / 2);
-  Expect.equals(a, confuse(a) % 5 % 2);
-  Expect.equals(a, confuse(a) ~/ 5 ~/ 2);
-  Expect.equals(a, confuse(a).remainder(5).remainder(2));
-
-  Expect.equals(a, (confuse(a) < 5) < 2);
-  Expect.equals(a, (confuse(a) <= 5) <= 2);
-  Expect.equals(a, (confuse(a) > 5) > 2);
-  Expect.equals(a, (confuse(a) >= 5) >= 2);
-}
-
-direct1() {
-  var a = new Thing1();
-  Expect.equals(a, a & 5 & 2);
-  Expect.equals(a, a | 5 | 2);
-  Expect.equals(a, a ^ 5 ^ 2);
-  Expect.equals(a, a << 5 << 2);
-  Expect.equals(a, a >> 5 >> 2);
-
-  Expect.equals(a, a + 5 + 2);
-  Expect.equals(a, a - 5 - 2);
-  Expect.equals(a, a * 5 * 2);
-  Expect.equals(a, a / 5 / 2);
-  Expect.equals(a, a % 5 % 2);
-  Expect.equals(a, a ~/ 5 ~/ 2);
-  Expect.equals(a, a.remainder(5).remainder(2));
-
-  Expect.equals(a, (a < 5) < 2);
-  Expect.equals(a, (a <= 5) <= 2);
-  Expect.equals(a, (a > 5) > 2);
-  Expect.equals(a, (a >= 5) >= 2);
-}
-
-direct2() {
-  var a = new Thing2();
-  Expect.equals(a, a & 5 & 2);
-  Expect.equals(a, a | 5 | 2);
-  Expect.equals(a, a ^ 5 ^ 2);
-  Expect.equals(a, a << 5 << 2);
-  Expect.equals(a, a >> 5 >> 2);
-
-  Expect.equals(a, a + 5 + 2);
-  Expect.equals(a, a - 5 - 2);
-  Expect.equals(a, a * 5 * 2);
-  Expect.equals(a, a / 5 / 2);
-  Expect.equals(a, a % 5 % 2);
-  Expect.equals(a, a ~/ 5 ~/ 2);
-  Expect.equals(a, a.remainder(5).remainder(2));
-
-  Expect.equals(a, (a < 5) < 2);
-  Expect.equals(a, (a <= 5) <= 2);
-  Expect.equals(a, (a > 5) > 2);
-  Expect.equals(a, (a >= 5) >= 2);
-}
-
-main() {
-  confused();
-  direct1();
-  direct2();
-}
diff --git a/tests/language_2/operator/operator1_test.dart b/tests/language_2/operator/operator1_test.dart
deleted file mode 100644
index d25f9340138..00000000000
--- a/tests/language_2/operator/operator1_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Operator functions cannot be static.
-
-class C {
-  static operator +(int index) {
-//^^^^^^
-// [analyzer] SYNTACTIC_ERROR.STATIC_OPERATOR
-// [cfe] Operators can't be static.
-    return index;
-  }
-}
-
-main() {
-  C();
-}
diff --git a/tests/language_2/operator/operator2_test.dart b/tests/language_2/operator/operator2_test.dart
deleted file mode 100644
index 8b0dcb5b707..00000000000
--- a/tests/language_2/operator/operator2_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Operator dart test program.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Helper {
-  int i;
-  Helper(int val) : i = val {}
-  operator [](int index) {
-    return i + index;
-  }
-
-  void operator []=(int index, int val) {
-    i = val;
-  }
-}
-
-main() {
-  Helper obj = new Helper(10);
-  Expect.equals(10, obj.i);
-  obj[10] = 20;
-  Expect.equals(30, obj[10]);
-
-  regress32754();
-}
-
-// Regression test for https://github.com/dart-lang/sdk/issues/32754
-class C {
-  operator []=(i, value) {
-    value = 'OOPS';
-  }
-}
-
-class C2 {
-  int data;
-  operator []=(i, value) {
-    // The return expression must be evaluated, then ignored.
-    return () {
-      data = i + value;
-      return null;
-    }();
-  }
-}
-
-regress32754() {
-  var c = new C();
-  Expect.equals('ok', c[0] = 'ok');
-
-  var c2 = new C2();
-  Expect.equals(23, c2[100] = 23);
-  Expect.equals(123, c2.data);
-}
diff --git a/tests/language_2/operator/operator3_test.dart b/tests/language_2/operator/operator3_test.dart
deleted file mode 100644
index 19eb77b2b0a..00000000000
--- a/tests/language_2/operator/operator3_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  operator -() => this;
-  toString() => "5";
-  abs() => "correct";
-}
-
-// This triggered a bug in Dart2Js: the speculative type optimization assigned
-// type "number" to 'a' and then to '-a'. In the bailout version the type for
-// 'a' was removed, but the type for '-a' was kept.
-foo(a) => -(-a);
-
-main() {
-  Expect.equals("correct", foo(new A()).abs());
-}
diff --git a/tests/language_2/operator/operator4_test.dart b/tests/language_2/operator/operator4_test.dart
deleted file mode 100644
index 9cbe5235e67..00000000000
--- a/tests/language_2/operator/operator4_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  operator <(other) => 1;
-}
-
-// This triggered a bug in Dart2Js: relational operators were not correctly
-// boolified.
-foo(a) {
-  try {
-    if (a < a) {
-      return "bad";
-    } else {
-      return 499;
-    }
-  } on TypeError catch (e) {
-    return 499;
-  }
-}
-
-main() {
-  Expect.equals(499, foo(new A()));
-}
diff --git a/tests/language_2/operator/operator5_test.dart b/tests/language_2/operator/operator5_test.dart
deleted file mode 100644
index cbcbd38d73b..00000000000
--- a/tests/language_2/operator/operator5_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  operator ==(other) => 1;
-  //                    ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] A value of type 'int' can't be assigned to a variable of type 'bool'.
-  operator <(other) => null;
-  operator <=(other) => 499;
-  operator >(other) => "foo";
-  operator >=(other) => 42;
-}
-
-// This triggered a bug in Dart2Js: equality operator was always boolified.
-equals(a) {
-  Expect.equals(1, a == a);
-}
-
-less(a) {
-  Expect.equals(null, a < a);
-}
-
-lessEqual(a) {
-  Expect.equals(499, a <= a);
-}
-
-greater(a) {
-  Expect.equals("foo", a > a);
-}
-
-greaterEqual(a) {
-  Expect.equals(42, a >= a);
-}
-
-main() {
-  var a = new A();
-  equals(a);
-  less(a);
-  lessEqual(a);
-  greater(a);
-  greaterEqual(a);
-}
diff --git a/tests/language_2/operator/operator6_test.dart b/tests/language_2/operator/operator6_test.dart
deleted file mode 100644
index 53b570dc546..00000000000
--- a/tests/language_2/operator/operator6_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class OperatorTest {
-  static int i1, i2;
-
-  OperatorTest() {}
-
-  static testMain() {
-    var op1 = new Operator(1);
-    var op2 = new Operator(2);
-    Expect.equals(~1, ~op1);
-  }
-}
-
-class Operator {
-  int value;
-
-  Operator(int i) {
-    value = i;
-  }
-
-  operator ~() {
-    return ~value;
-  }
-}
-
-main() {
-  OperatorTest.testMain();
-}
diff --git a/tests/language_2/operator/operator7_test.dart b/tests/language_2/operator/operator7_test.dart
deleted file mode 100644
index 2d6ab19adba..00000000000
--- a/tests/language_2/operator/operator7_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// No "===" operator.
-
-class C {
-  operator ===(int index) {
-  //       ^
-  // [analyzer] SYNTACTIC_ERROR.UNSUPPORTED_OPERATOR
-  // [cfe] The '===' operator is not supported.
-    return index;
-  }
-}
-
-main() {
-  C();
-}
diff --git a/tests/language_2/operator/operator_test.dart b/tests/language_2/operator/operator_test.dart
deleted file mode 100644
index 9763a582b7f..00000000000
--- a/tests/language_2/operator/operator_test.dart
+++ /dev/null
@@ -1,141 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class OperatorTest {
-  static int i1, i2;
-
-  OperatorTest() {}
-
-  static testMain() {
-    var op1 = new Operator(1);
-    var op2 = new Operator(2);
-    Expect.equals(3, op1 + op2);
-    Expect.equals(-1, op1 - op2);
-    Expect.equals(0.5, op1 / op2);
-    Expect.equals(0, op1 ~/ op2);
-    Expect.equals(2, op1 * op2);
-    Expect.equals(1, op1 % op2);
-    Expect.equals(true, !(op1 == op2));
-    Expect.equals(true, op1 < op2);
-    Expect.equals(true, !(op1 > op2));
-    Expect.equals(true, op1 <= op2);
-    Expect.equals(true, !(op1 >= op2));
-    Expect.equals(3, (op1 | op2));
-    Expect.equals(3, (op1 ^ op2));
-    Expect.equals(0, (op1 & op2));
-    Expect.equals(4, (op1 << op2));
-    Expect.equals(0, (op1 >> op2));
-    Expect.equals(-1, -op1);
-
-    op1.value += op2.value;
-    Expect.equals(3, op1.value);
-
-    op2.value += (op2.value += op2.value);
-    Expect.equals(6, op2.value);
-
-    op2.value -= (op2.value -= op2.value);
-    Expect.equals(6, op2.value);
-
-    op1.value = op2.value = 42;
-    Expect.equals(42, op1.value);
-    Expect.equals(42, op2.value);
-
-    i1 = i2 = 42;
-    Expect.equals(42, i1);
-    Expect.equals(42, i2);
-    i1 += 7;
-    Expect.equals(49, i1);
-    i1 += (i2 = 17);
-    Expect.equals(66, i1);
-    Expect.equals(17, i2);
-
-    i1 += i2 += 3;
-    Expect.equals(86, i1);
-    Expect.equals(20, i2);
-  }
-}
-
-class Operator {
-  int value;
-
-  Operator(int i) {
-    value = i;
-  }
-
-  operator +(Operator other) {
-    return value + other.value;
-  }
-
-  operator -(Operator other) {
-    return value - other.value;
-  }
-
-  operator /(Operator other) {
-    return value / other.value;
-  }
-
-  operator *(Operator other) {
-    return value * other.value;
-  }
-
-  operator %(Operator other) {
-    return value % other.value;
-  }
-
-  operator ==(dynamic other) {
-    return value == other.value;
-  }
-
-  operator <(Operator other) {
-    return value < other.value;
-  }
-
-  operator >(Operator other) {
-    return value > other.value;
-  }
-
-  operator <=(Operator other) {
-    return value <= other.value;
-  }
-
-  operator >=(Operator other) {
-    return value >= other.value;
-  }
-
-  operator |(Operator other) {
-    return value | other.value;
-  }
-
-  operator ^(Operator other) {
-    return value ^ other.value;
-  }
-
-  operator &(Operator other) {
-    return value & other.value;
-  }
-
-  operator <<(Operator other) {
-    return value << other.value;
-  }
-
-  operator >>(Operator other) {
-    return value >> other.value;
-  }
-
-  operator ~/(Operator other) {
-    return value ~/ other.value;
-  }
-
-  operator -() {
-    return -value;
-  }
-}
-
-main() {
-  OperatorTest.testMain();
-}
diff --git a/tests/language_2/operator/positive_bit_operations_test.dart b/tests/language_2/operator/positive_bit_operations_test.dart
deleted file mode 100644
index 7133f843118..00000000000
--- a/tests/language_2/operator/positive_bit_operations_test.dart
+++ /dev/null
@@ -1,146 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-constants() {
-  Expect.equals(0x80000000, 0x80000000 | 0);
-  Expect.equals(0x80000001, 0x80000000 | 1);
-  Expect.equals(0x80000000, 0x80000000 | 0x80000000);
-  Expect.equals(0xFFFFFFFF, 0xFFFF0000 | 0xFFFF);
-  Expect.equals(0x80000000, 0x80000000 & 0xFFFFFFFF);
-  Expect.equals(0x80000000, 0x80000000 & 0x80000000);
-  Expect.equals(0x80000000, 0x80000000 & 0xF0000000);
-  Expect.equals(0x80000000, 0xFFFFFFFF & 0x80000000);
-  Expect.equals(0x80000000, 0x80000000 ^ 0);
-  Expect.equals(0xFFFFFFFF, 0x80000000 ^ 0x7FFFFFFF);
-  Expect.equals(0xFFFFFFFF, 0x7FFFFFFF ^ 0x80000000);
-  Expect.equals(0xF0000000, 0x70000000 ^ 0x80000000);
-  Expect.equals(0x80000000, 1 << 31);
-  Expect.equals(0xFFFFFFF0, 0xFFFFFFF << 4);
-  Expect.equals(0x7FFFFFFF, 0xFFFFFFFF >> 1);
-  Expect.equals(
-      0xFFFFFFFC,
-      ((((((0xFFFFFFF << 4) // 0xFFFFFFF0
-                          >>
-                          1) // 0x7FFFFFF8
-                      |
-                      0x80000000) // 0xFFFFFFF8
-                  >>
-                  2) // 0x3FFFFFFE
-              ^
-              0x40000000) // 0x7FFFFFFE
-          <<
-          1));
-}
-
-foo(i) {
-  if (i != 0) {
-    y--;
-    foo(i - 1);
-    y++;
-  }
-}
-
-var y;
-
-// id returns [x] in a way that should be difficult to predict statically.
-id(x) {
-  y = x;
-  foo(10);
-  return y;
-}
-
-interceptors() {
-  Expect.equals(0x80000000, id(0x80000000) | id(0));
-  Expect.equals(0x80000001, id(0x80000000) | id(1));
-  Expect.equals(0x80000000, id(0x80000000) | id(0x80000000));
-  Expect.equals(0xFFFFFFFF, id(0xFFFF0000) | id(0xFFFF));
-  Expect.equals(0x80000000, id(0x80000000) & id(0xFFFFFFFF));
-  Expect.equals(0x80000000, id(0x80000000) & id(0x80000000));
-  Expect.equals(0x80000000, id(0x80000000) & id(0xF0000000));
-  Expect.equals(0x80000000, id(0xFFFFFFFF) & id(0x80000000));
-  Expect.equals(0x80000000, id(0x80000000) ^ id(0));
-  Expect.equals(0xFFFFFFFF, id(0x80000000) ^ id(0x7FFFFFFF));
-  Expect.equals(0xFFFFFFFF, id(0x7FFFFFFF) ^ id(0x80000000));
-  Expect.equals(0xF0000000, id(0x70000000) ^ id(0x80000000));
-  Expect.equals(0x80000000, id(1) << id(31));
-  Expect.equals(0xFFFFFFF0, id(0xFFFFFFF) << id(4));
-  Expect.equals(0x7FFFFFFF, id(0xFFFFFFFF) >> id(1));
-  Expect.equals(
-      0xFFFFFFFC,
-      ((((((id(0xFFFFFFF) << 4) // 0xFFFFFFF0
-                          >>
-                          1) // 0x7FFFFFF8
-                      |
-                      0x80000000) // 0xFFFFFFF8
-                  >>
-                  2) // 0x3FFFFFFE
-              ^
-              0x40000000) // 0x7FFFFFFE
-          <<
-          1));
-}
-
-speculative() {
-  var a = id(0x80000000);
-  var b = id(0);
-  var c = id(1);
-  var d = id(0xFFFF0000);
-  var e = id(0xFFFF);
-  var f = id(0xFFFFFFFF);
-  var g = id(0xF0000000);
-  var h = id(0x7FFFFFFF);
-  var j = id(0x70000000);
-  var k = id(31);
-  var l = id(4);
-  var m = id(0xFFFFFFF);
-  for (int i = 0; i < 1; i++) {
-    Expect.equals(0x80000000, a | b);
-    Expect.equals(0x80000001, a | c);
-    Expect.equals(0x80000000, a | a);
-    Expect.equals(0xFFFFFFFF, d | e);
-    Expect.equals(0x80000000, a & f);
-    Expect.equals(0x80000000, a & a);
-    Expect.equals(0x80000000, a & g);
-    Expect.equals(0x80000000, f & a);
-    Expect.equals(0x80000000, a ^ b);
-    Expect.equals(0xFFFFFFFF, a ^ h);
-    Expect.equals(0xFFFFFFFF, h ^ a);
-    Expect.equals(0xF0000000, j ^ a);
-    Expect.equals(0x80000000, c << k);
-    Expect.equals(0xFFFFFFF0, m << l);
-    Expect.equals(0x7FFFFFFF, f >> c);
-    Expect.equals(
-        0xFFFFFFFC,
-        ((((((m << 4) // 0xFFFFFFF0
-                            >>
-                            1) // 0x7FFFFFF8
-                        |
-                        0x80000000) // 0xFFFFFFF8
-                    >>
-                    2) // 0x3FFFFFFE
-                ^
-                0x40000000) // 0x7FFFFFFE
-            <<
-            1));
-  }
-}
-
-// Due to bad precedence rules this example was broken in Dart2Js.
-precedence() {
-  Expect.equals(0x80000000, -1 & 0x80000000);
-  Expect.equals(0x80000000, id(-1) & 0x80000000);
-  Expect.equals(0x80000000, ~(~(0x80000000)));
-  Expect.equals(0x80000000, ~(~(id(0x80000000))));
-}
-
-main() {
-  constants();
-  interceptors();
-  speculative();
-  precedence();
-}
diff --git a/tests/language_2/operator/precedence_test.dart b/tests/language_2/operator/precedence_test.dart
deleted file mode 100644
index 4db2b54f40d..00000000000
--- a/tests/language_2/operator/precedence_test.dart
+++ /dev/null
@@ -1,181 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test operation precedence.
-
-// @dart = 2.9
-
-library precedence_test;
-
-import "package:expect/expect.dart";
-
-main() {
-  testBang();
-  testIndexWithPrefixAdd();
-  testIndexWithPostfixAdd();
-  testTilde();
-  testUnaryPrefixWithAdd();
-  testUnaryPostfixWithAdd();
-  testUnaryPrefixWithMultiply();
-  testUnaryPostfixWithMultiply();
-}
-
-void testBang() {
-  int x = 3;
-
-  Expect.equals(!true == false, true);
-  Expect.equals(!x.isEven, true);
-  Expect.equals(!(++x).isEven, false);
-  Expect.equals(x, 4);
-  Expect.equals(!(x++).isEven, false);
-  Expect.equals(x, 5);
-}
-
-void testIndexWithPrefixAdd() {
-  var x = <int>[3];
-
-  Expect.equals(++x[0] + 3, 7);
-  Expect.equals(x[0], 4);
-  Expect.equals(++x[0] - 3, 2);
-  Expect.equals(x[0], 5);
-  Expect.equals(--x[0] + 4, 8);
-  Expect.equals(x[0], 4);
-  Expect.equals(--x[0] - 4, -1);
-  Expect.equals(x[0], 3);
-
-  Expect.equals(3 + ++x[0], 7);
-  Expect.equals(x[0], 4);
-  Expect.equals(3 - ++x[0], -2);
-  Expect.equals(x[0], 5);
-  Expect.equals(4 + --x[0], 8);
-  Expect.equals(x[0], 4);
-  Expect.equals(4 - --x[0], 1);
-  Expect.equals(x[0], 3);
-}
-
-void testIndexWithPostfixAdd() {
-  var x = <int>[3];
-
-  Expect.equals(x[0]++ + 3, 6);
-  Expect.equals(x[0], 4);
-  Expect.equals(x[0]++ - 3, 1);
-  Expect.equals(x[0], 5);
-  Expect.equals(x[0]-- + 4, 9);
-  Expect.equals(x[0], 4);
-  Expect.equals(x[0]-- - 4, 0);
-  Expect.equals(x[0], 3);
-
-  Expect.equals(3 + x[0]++, 6);
-  Expect.equals(x[0], 4);
-  Expect.equals(3 - x[0]++, -1);
-  Expect.equals(x[0], 5);
-  Expect.equals(4 + x[0]--, 9);
-  Expect.equals(x[0], 4);
-  Expect.equals(4 - x[0]--, 0);
-  Expect.equals(x[0], 3);
-}
-
-void testTilde() {
-  int x = 3;
-
-  Expect.equals(~x.sign, ~(x.sign));
-  Expect.equals(~x + 7, (~3) + 7);
-
-  Expect.equals(~++x + 7, (~4) + 7);
-  Expect.equals(x, 4);
-  Expect.equals(~x++ + 7, (~4) + 7);
-  Expect.equals(x, 5);
-
-  Expect.equals(~ --x + 7, (~4) + 7);
-  Expect.equals(x, 4);
-  Expect.equals(~x-- + 7, (~4) + 7);
-  Expect.equals(x, 3);
-}
-
-void testUnaryPrefixWithAdd() {
-  int x = 3;
-
-  Expect.equals(++x + 3, 7);
-  Expect.equals(x, 4);
-  Expect.equals(++x - 3, 2);
-  Expect.equals(x, 5);
-  Expect.equals(--x + 4, 8);
-  Expect.equals(x, 4);
-  Expect.equals(--x - 4, -1);
-  Expect.equals(x, 3);
-
-  Expect.equals(3 + ++x, 7);
-  Expect.equals(x, 4);
-  Expect.equals(3 - ++x, -2);
-  Expect.equals(x, 5);
-  Expect.equals(4 + --x, 8);
-  Expect.equals(x, 4);
-  Expect.equals(4 - --x, 1);
-  Expect.equals(x, 3);
-}
-
-void testUnaryPostfixWithAdd() {
-  int x = 3;
-
-  Expect.equals(x++ + 3, 6);
-  Expect.equals(x, 4);
-  Expect.equals(x++ - 3, 1);
-  Expect.equals(x, 5);
-  Expect.equals(x-- + 4, 9);
-  Expect.equals(x, 4);
-  Expect.equals(x-- - 4, 0);
-  Expect.equals(x, 3);
-
-  Expect.equals(3 + x++, 6);
-  Expect.equals(x, 4);
-  Expect.equals(3 - x++, -1);
-  Expect.equals(x, 5);
-  Expect.equals(4 + x--, 9);
-  Expect.equals(x, 4);
-  Expect.equals(4 - x--, 0);
-  Expect.equals(x, 3);
-}
-
-void testUnaryPrefixWithMultiply() {
-  int x = 3;
-
-  Expect.equals(++x * 3, 12);
-  Expect.equals(x, 4);
-  Expect.equals(++x / 5, 1.0);
-  Expect.equals(x, 5);
-  Expect.equals(--x * 3, 12);
-  Expect.equals(x, 4);
-  Expect.equals(--x / 4, 0.75);
-  Expect.equals(x, 3);
-
-  Expect.equals(3 * ++x, 12);
-  Expect.equals(x, 4);
-  Expect.equals(5 / ++x, 1.0);
-  Expect.equals(x, 5);
-  Expect.equals(3 * --x, 12);
-  Expect.equals(x, 4);
-  Expect.equals(6 / --x, 2.0);
-  Expect.equals(x, 3);
-}
-
-void testUnaryPostfixWithMultiply() {
-  int x = 3;
-
-  Expect.equals(x++ * 3, 9);
-  Expect.equals(x, 4);
-  Expect.equals(x++ / 4, 1.0);
-  Expect.equals(x, 5);
-  Expect.equals(x-- * 3, 15);
-  Expect.equals(x, 4);
-  Expect.equals(x-- / 4, 1.0);
-  Expect.equals(x, 3);
-
-  Expect.equals(3 * x++, 9);
-  Expect.equals(x, 4);
-  Expect.equals(3 / x++, 0.75);
-  Expect.equals(x, 5);
-  Expect.equals(4 * x--, 20);
-  Expect.equals(x, 4);
-  Expect.equals(4 / x--, 1.0);
-  Expect.equals(x, 3);
-}
diff --git a/tests/language_2/operator/round_test.dart b/tests/language_2/operator/round_test.dart
deleted file mode 100644
index 8f6025a144d..00000000000
--- a/tests/language_2/operator/round_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Test of a common rounding bug.
-///
-/// This bug is common in JavaScript implementations because the ECMA-262
-/// specification of JavaScript incorrectly claims:
-///
-///     The value of [:Math.round(x):] is the same as the value of
-///     [:Math.floor(x+0.5):], except when x is 0 or is less than 0 but greater
-///     than or equal to -0.5; for these cases [:Math.round(x):] returns 0, but
-///     [:Math.floor(x+0.5):] returns +0.
-///
-/// However, 0.49999999999999994 + 0.5 is 1 and 9007199254740991 + 0.5 is
-/// 9007199254740992, so you cannot implement Math.round in terms of
-/// Math.floor.
-
-import 'package:expect/expect.dart';
-
-main() {
-  Expect.equals(0, (0.49999999999999994).round());
-  Expect.equals(0, (-0.49999999999999994).round());
-
-  Expect.equals(9007199254740991, (9007199254740991.0).round());
-  Expect.equals(-9007199254740991, (-9007199254740991.0).round());
-}
diff --git a/tests/language_2/operator/smi_type_test.dart b/tests/language_2/operator/smi_type_test.dart
deleted file mode 100644
index 02cb4a457fa..00000000000
--- a/tests/language_2/operator/smi_type_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=8
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  // Make instance-of polymorphic.
-  isNum([]);
-  isNumRaw([]);
-  isNotNum([]);
-  isNotInt([]);
-  for (int i = 0; i < 20; i++) {
-    Expect.isTrue(isNum(i));
-    Expect.isTrue(isNumRaw(i));
-    Expect.isFalse(isNotNum(i));
-    Expect.isFalse(isNotInt(i));
-  }
-}
-
-isNum(a) {
-  return a is Comparable<num>;
-}
-
-isNumRaw(a) {
-  return a is Comparable;
-}
-
-isNotNum(a) {
-  return a is Comparable<String>;
-}
-
-isNotInt(a) {
-  return a is Comparable<double>;
-}
diff --git a/tests/language_2/operator/ternary_test.dart b/tests/language_2/operator/ternary_test.dart
deleted file mode 100644
index 628ec570eed..00000000000
--- a/tests/language_2/operator/ternary_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing the ternary operator.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class TernaryTest {
-  static true_cond() {
-    return true;
-  }
-
-  static false_cond() {
-    return false;
-  }
-
-  static foo() {
-    return -4;
-  }
-
-  static moo() {
-    return 5;
-  }
-
-  static testMain() {
-    Expect.equals(
-        -4, (TernaryTest.true_cond() ? TernaryTest.foo() : TernaryTest.moo()));
-    Expect.equals(
-        5, (TernaryTest.false_cond() ? TernaryTest.foo() : TernaryTest.moo()));
-  }
-}
-
-main() {
-  TernaryTest.testMain();
-}
diff --git a/tests/language_2/operator/truncdiv_test.dart b/tests/language_2/operator/truncdiv_test.dart
deleted file mode 100644
index e8d7d924421..00000000000
--- a/tests/language_2/operator/truncdiv_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test optimization of modulo operator on Smi.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  for (int i = -30; i < 30; i++) {
-    Expect.equals(i % 9, foo(i, 9));
-    // Zero test is done outside the loop.
-    if (i < 0) {
-      Expect.equals(i ~/ -i, foo2(i));
-    } else if (i > 0) {
-      Expect.equals(i ~/ i, foo2(i));
-    }
-  }
-  // We don't specify the exact exception type here, that is covered in
-  // truncdiv_zero_test.
-  Expect.throws<UnsupportedError>(() => foo2(0));
-}
-
-foo(i, x) => i % x;
-
-foo2(i) {
-  // Make sure x has a range computed.
-  var x = 0;
-  if (i < 0) {
-    x = -i;
-  } else {
-    x = i;
-  }
-  return i ~/ x;
-}
diff --git a/tests/language_2/operator/truncdiv_uint32_test.dart b/tests/language_2/operator/truncdiv_uint32_test.dart
deleted file mode 100644
index 3ca40be2dca..00000000000
--- a/tests/language_2/operator/truncdiv_uint32_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-var a = [0xFFFFFFFF];
-
-main() {
-  if (a[0] ~/ 1 != 0xFFFFFFFF) throw 'Test failed';
-}
diff --git a/tests/language_2/operator/truncdiv_zero_test.dart b/tests/language_2/operator/truncdiv_zero_test.dart
deleted file mode 100644
index c69b9288692..00000000000
--- a/tests/language_2/operator/truncdiv_zero_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test optimization of modulo operator on Smi.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "truncdiv_test.dart" as truncdiv_test show foo, foo2;
-
-main() {
-  Expect.throws<UnsupportedError>(() => truncdiv_test.foo(12, 0));
-  Expect.throws<UnsupportedError>(() => truncdiv_test.foo2(0));
-}
diff --git a/tests/language_2/operator/unary2_test.dart b/tests/language_2/operator/unary2_test.dart
deleted file mode 100644
index 87fe30b4d21..00000000000
--- a/tests/language_2/operator/unary2_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing binary operations.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class UnaryTest {
-  static foo() {
-    return -4;
-  }
-
-  static moo() {
-    return 5;
-  }
-
-  static testMain() {
-    Expect.equals(1, (UnaryTest.foo() + UnaryTest.moo()));
-  }
-}
-
-main() {
-  UnaryTest.testMain();
-}
diff --git a/tests/language_2/operator/unary_plus_test.dart b/tests/language_2/operator/unary_plus_test.dart
deleted file mode 100644
index 279dbdac348..00000000000
--- a/tests/language_2/operator/unary_plus_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// There is no unary plus operator in Dart.
-
-main() {
-  var a = 1;
-  var b = +a;
-  //      ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] '+' is not a prefix operator.
-}
diff --git a/tests/language_2/operator/unary_test.dart b/tests/language_2/operator/unary_test.dart
deleted file mode 100644
index 469925dc9cf..00000000000
--- a/tests/language_2/operator/unary_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test for testing binary operations.
-
-class UnaryTest {
-  static foo() {
-    return 4;
-  }
-
-  static moo() {
-    return 5;
-  }
-
-  static testMain() {
-    Expect.equals(9.0, (UnaryTest.foo() + UnaryTest.moo()));
-  }
-}
-
-main() {
-  UnaryTest.testMain();
-}
diff --git a/tests/language_2/operator/unsupported_runtime_test.dart b/tests/language_2/operator/unsupported_runtime_test.dart
deleted file mode 100644
index a1bf3d71095..00000000000
--- a/tests/language_2/operator/unsupported_runtime_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test handling of unsupported operators.
-
-library unsupported_operators;
-
-class C {
-  m() {
-    print(
-
-        null);
-    print(
-
-        null);
-  }
-}
-
-void main() {
-  new C().m();
-  new C().m();
-  print(
-
-      null);
-  print(
-
-      null);
-}
diff --git a/tests/language_2/operator/unsupported_test.dart b/tests/language_2/operator/unsupported_test.dart
deleted file mode 100644
index 7ead00a760a..00000000000
--- a/tests/language_2/operator/unsupported_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test handling of unsupported operators.
-
-library unsupported_operators;
-
-class C {
-  m() {
-    print(
-          super ===
-          //    ^
-          // [analyzer] SYNTACTIC_ERROR.UNSUPPORTED_OPERATOR
-          // [cfe] The '===' operator is not supported.
-          //    ^
-          // [cfe] The string '===' isn't a user-definable operator.
-        null);
-    print(
-          super !==
-          //    ^
-          // [analyzer] SYNTACTIC_ERROR.UNSUPPORTED_OPERATOR
-          // [cfe] The '!==' operator is not supported.
-          //    ^
-          // [cfe] The string '!==' isn't a user-definable operator.
-        null);
-  }
-}
-
-void main() {
-  new C().m();
-  new C().m();
-  print(
-        "foo" ===
-        //    ^
-        // [analyzer] SYNTACTIC_ERROR.UNSUPPORTED_OPERATOR
-        // [cfe] The '===' operator is not supported.
-        //    ^
-        // [cfe] The string '===' isn't a user-definable operator.
-      null);
-  print(
-        "foo" !==
-        //    ^
-        // [analyzer] SYNTACTIC_ERROR.UNSUPPORTED_OPERATOR
-        // [cfe] The '!==' operator is not supported.
-        //    ^
-        // [cfe] The string '!==' isn't a user-definable operator.
-      null);
-}
diff --git a/tests/language_2/optimize/allocation_sinking_inlining_test.dart b/tests/language_2/optimize/allocation_sinking_inlining_test.dart
deleted file mode 100644
index 8ca3c16564d..00000000000
--- a/tests/language_2/optimize/allocation_sinking_inlining_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-// Test allocation sinking with polymorphic inlining.
-
-import "package:expect/expect.dart";
-
-class A {
-  foo(x) => ++x.f;
-}
-
-class B {
-  foo(x) => --x.f;
-}
-
-class C {
-  int f = 0;
-}
-
-test(obj) {
-  var c = new C();
-  return obj.foo(c);
-}
-
-main() {
-  var a = new A();
-  var b = new B();
-  Expect.equals(1, test(a));
-  Expect.equals(-1, test(b));
-  for (var i = 0; i < 20; i++) test(a);
-  Expect.equals(1, test(a));
-  Expect.equals(-1, test(b));
-}
diff --git a/tests/language_2/optimize/bailout2_test.dart b/tests/language_2/optimize/bailout2_test.dart
deleted file mode 100644
index e594c99f0e0..00000000000
--- a/tests/language_2/optimize/bailout2_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var a;
-
-main() {
-  // Write a loop to force a bailout method on [A.foo].
-  for (int i = 0; i < 10; i++) {
-    if (a != null) new A().foo([]);
-    Expect.equals(42, new A().foo(new A()));
-  }
-}
-
-class A {
-  // In dart2js, the optimized version of foo tries to optimize the
-  // uses of a.length (which is used two times here: for the index,
-  // and for the bounds check), and that optimization used to crash
-  // the compiler.
-  foo(a) => a[a.length];
-
-  int get length => 42;
-  operator [](index) => 42;
-}
diff --git a/tests/language_2/optimize/bailout3_test.dart b/tests/language_2/optimize/bailout3_test.dart
deleted file mode 100644
index 2a74b057d42..00000000000
--- a/tests/language_2/optimize/bailout3_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that the return type of a method is being registered for both
-// its bailout and optimized version in dart2js.
-
-var a;
-
-bar() {
-  if (a[0] == 0) {
-    // Force bailout version.
-    bar();
-    // Avoid inlining.
-    throw 0;
-  }
-  for (int i = 0; i < 10; i++) {
-    a[0] = 42;
-  }
-  // This return should say that bar can return an array or unknown.
-  return a;
-}
-
-foo() {
-  if (a[0] == 0) {
-    // Avoid inlining.
-    throw 0;
-  }
-  var b = bar();
-  // This check used to fail because dart2js was assuming [b] was an
-  // array.
-  Expect.equals(1, b.length);
-}
-
-main() {
-  a = new Map();
-  bar();
-  foo();
-}
diff --git a/tests/language_2/optimize/bailout4_test.dart b/tests/language_2/optimize/bailout4_test.dart
deleted file mode 100644
index 31934961885..00000000000
--- a/tests/language_2/optimize/bailout4_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that dart2s computes the right bailout environment in presence
-// of nested loops.
-
-class A {
-  operator [](index) => 42;
-}
-
-var a = new A();
-var b = new List.filled(4, null);
-int count = 0;
-
-main() {
-  // Make the method recursive to make sure it gets an optimized
-  // version.
-  if (b[0] != null) main();
-
-  for (int i = 0; i < 2; i++) {
-    for (int j = 0; j < 2; j++) {
-      for (int k = 0; k < 2; k++) {
-        Expect.equals(42, a[i + j + k]);
-        count++;
-      }
-    }
-  }
-  Expect.equals(8, count);
-}
diff --git a/tests/language_2/optimize/bailout5_test.dart b/tests/language_2/optimize/bailout5_test.dart
deleted file mode 100644
index bbf7da6f25b..00000000000
--- a/tests/language_2/optimize/bailout5_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test to make sure the bailout environment in dart2js is correct.
-
-var global;
-
-class A {
-  var array;
-
-  initArray() {
-    return global[0] == null ? [null] : new Map();
-  }
-
-  bar() {
-    array = initArray();
-    do {
-      var element = array[0]; // bailout here
-      if (element is Map) continue;
-      if (element == null) break;
-    } while (true);
-    return global[0]; // bailout here
-  }
-
-  baz() {
-    do {
-      var element = bar();
-      if (element == null) return global[0]; // bailout here
-      if (element is Map) continue;
-      if (element is num) break;
-    } while (true);
-    return global[0]; // bailout here
-  }
-}
-
-void main() {
-  global = [1];
-  for (int i = 0; i < 2; i++) {
-    Expect.equals(1, new A().baz());
-    Expect.equals(1, new A().bar());
-  }
-  global = new Map();
-  for (int i = 0; i < 2; i++) {
-    Expect.equals(null, new A().baz());
-    Expect.equals(null, new A().bar());
-  }
-
-  global[0] = 42;
-  for (int i = 0; i < 2; i++) {
-    Expect.equals(42, new A().baz());
-    Expect.equals(42, new A().bar());
-  }
-}
diff --git a/tests/language_2/optimize/bailout6_test.dart b/tests/language_2/optimize/bailout6_test.dart
deleted file mode 100644
index bd22f36500a..00000000000
--- a/tests/language_2/optimize/bailout6_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test for dart2js to make sure the computed bailout environment is
-// correct.
-
-var global;
-
-class A {
-  var array;
-
-  foo() {
-    do {
-      var element = global;
-      if (element is Map) continue;
-      if (element is num) break;
-    } while (true);
-    return array[0]; // bailout here.
-  }
-}
-
-void main() {
-  var a = new A();
-  a.array = [42];
-  global = 42;
-
-  for (int i = 0; i < 2; i++) {
-    Expect.equals(42, a.foo());
-  }
-
-  a.array = new Map();
-  a.array[0] = 42;
-  for (int i = 0; i < 2; i++) {
-    Expect.equals(42, a.foo());
-  }
-  global = null;
-}
diff --git a/tests/language_2/optimize/bailout7_test.dart b/tests/language_2/optimize/bailout7_test.dart
deleted file mode 100644
index 7d02e92d5b9..00000000000
--- a/tests/language_2/optimize/bailout7_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test to make sure the do/while loop exit condition is generated.
-
-var global;
-
-class A {
-  var array;
-
-  initArray() {
-    if (global[0] == null) {
-      return [2];
-    } else {
-      var map = new Map();
-      map[0] = 2;
-      return map;
-    }
-  }
-
-  bar() {
-    array = initArray();
-    var element;
-    do {
-      element = array[0]; // bailout here
-      if (element is Map) continue;
-      if (element == null) break;
-    } while (element != 2);
-    return global[0]; // bailout here
-  }
-}
-
-void main() {
-  global = [2];
-  for (int i = 0; i < 2; i++) {
-    Expect.equals(2, new A().bar());
-  }
-
-  global = new Map();
-  global[0] = 2;
-  for (int i = 0; i < 2; i++) {
-    Expect.equals(2, new A().bar());
-  }
-}
diff --git a/tests/language_2/optimize/bailout_container_type_test.dart b/tests/language_2/optimize/bailout_container_type_test.dart
deleted file mode 100644
index ab8442c5463..00000000000
--- a/tests/language_2/optimize/bailout_container_type_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to generate bad code for the
-// non-bailout version of [main].
-
-var a = [
-  false,
-  [1, 2, 3]
-];
-var b;
-
-main() {
-  // Defeat type inferencing for [b].
-  b = new Object();
-  b = 42;
-  b = [];
-
-  // Make the function recursive to force a bailout version.
-  if (a[0]) main();
-
-  // We used to ask [b] to be of the same type as [a], but not
-  // checking that the length and element type are the same.
-  var arrayPhi = a[0] ? a : b;
-
-  if (arrayPhi.length != 0) {
-    throw 'Test failed';
-  }
-}
diff --git a/tests/language_2/optimize/bailout_test.dart b/tests/language_2/optimize/bailout_test.dart
deleted file mode 100644
index 42ddf807dda..00000000000
--- a/tests/language_2/optimize/bailout_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that a call to a bailout method in dart2js resolves to the
-// right method.
-
-var reachedAfoo = new C();
-
-class A {
-  foo() {
-    // Using '++' makes sure there is a type guard.
-    reachedAfoo++;
-  }
-}
-
-class B extends A {
-  foo() {
-    reachedAfoo++;
-    // Call the Expect method after the type guard.
-    Expect.fail('Should never reach B.foo');
-  }
-
-  bar() {
-    super.foo();
-  }
-}
-
-class C {
-  int value = 0;
-  operator +(val) {
-    value += val;
-    return this;
-  }
-}
-
-main() {
-  // Using a loop makes sure the 'foo' methods will have an optimized
-  // version.
-  while (reachedAfoo.value != 0) {
-    new A().foo();
-    new B().foo();
-  }
-  new B().bar();
-  Expect.equals(1, reachedAfoo.value);
-}
diff --git a/tests/language_2/optimize/cha_deopt1_deferred_lib.dart b/tests/language_2/optimize/cha_deopt1_deferred_lib.dart
deleted file mode 100644
index 25c46967863..00000000000
--- a/tests/language_2/optimize/cha_deopt1_deferred_lib.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "cha_deopt1_lib.dart";
-
-class U extends T {
-  m() => "good horse";
-}
-
-make_u() => new U();
diff --git a/tests/language_2/optimize/cha_deopt1_lib.dart b/tests/language_2/optimize/cha_deopt1_lib.dart
deleted file mode 100644
index d5760bbea0f..00000000000
--- a/tests/language_2/optimize/cha_deopt1_lib.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library mylib;
-
-class T {
-  m() => 42;
-}
diff --git a/tests/language_2/optimize/cha_deopt1_test.dart b/tests/language_2/optimize/cha_deopt1_test.dart
deleted file mode 100644
index e128ba30794..00000000000
--- a/tests/language_2/optimize/cha_deopt1_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=100 --no-background-compilation
-
-// @dart = 2.9
-
-// Test lazy deoptimization at field guards with deferred loading.
-
-import "package:expect/expect.dart";
-import "cha_deopt1_lib.dart";
-import "cha_deopt1_deferred_lib.dart" deferred as d;
-
-var loaded = false;
-
-main() {
-  for (var i = 0; i < 2000; i++) bla();
-  Expect.equals(42, bla());
-  d.loadLibrary().then((_) {
-    loaded = true;
-    Expect.equals("good horse", bla());
-  });
-}
-
-make_t() {
-  try {
-    if (loaded) {
-      return d.make_u();
-    } else {
-      return new T();
-    }
-  } catch (e) {}
-}
-
-bla() {
-  var x = new X();
-  x.test(make_t());
-  return x.fld.m();
-}
-
-class X {
-  T fld = new T();
-
-  test(T t) {
-    if (t != null) {
-      T tmp = t;
-      fld = tmp;
-    }
-  }
-}
diff --git a/tests/language_2/optimize/cha_deopt2_deferred_lib.dart b/tests/language_2/optimize/cha_deopt2_deferred_lib.dart
deleted file mode 100644
index 59ec9f80b32..00000000000
--- a/tests/language_2/optimize/cha_deopt2_deferred_lib.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "cha_deopt2_lib.dart";
-
-class U extends T {}
-
-make_u() => new U();
diff --git a/tests/language_2/optimize/cha_deopt2_lib.dart b/tests/language_2/optimize/cha_deopt2_lib.dart
deleted file mode 100644
index 20231d9c6a5..00000000000
--- a/tests/language_2/optimize/cha_deopt2_lib.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library mylib;
-
-class A {}
-
-class B {}
-
-class C {}
-
-class D {}
-
-class E {}
-
-class T {}
diff --git a/tests/language_2/optimize/cha_deopt2_test.dart b/tests/language_2/optimize/cha_deopt2_test.dart
deleted file mode 100644
index 15b486d0e0c..00000000000
--- a/tests/language_2/optimize/cha_deopt2_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=100 --no-background-compilation
-// VMOptions=--optimization-counter-threshold=100 --no-background-compilation --no-use-field-guards
-
-// @dart = 2.9
-
-// Test lazy deoptimization at type checks with deferred loading.
-
-import "package:expect/expect.dart";
-import "cha_deopt2_lib.dart";
-import "cha_deopt2_deferred_lib.dart" deferred as d;
-
-var loaded = false;
-
-main() {
-  for (var i = 0; i < 2000; i++) bla();
-  Expect.equals(1, bla());
-  d.loadLibrary().then((_) {
-    loaded = true;
-    Expect.equals(1, bla());
-  });
-}
-
-make_array() {
-  try {
-    if (loaded) {
-      return [new A(), new B(), new C(), new D(), new E(), d.make_u()];
-    } else {
-      return [new A(), new B(), new C(), new D(), new E(), new T()];
-    }
-  } catch (e) {}
-}
-
-bla() {
-  var count = 0;
-  for (var x in make_array()) {
-    if (x is T) count++;
-  }
-  return count;
-}
diff --git a/tests/language_2/optimize/cha_deopt3_deferred_lib.dart b/tests/language_2/optimize/cha_deopt3_deferred_lib.dart
deleted file mode 100644
index 62e9bedb82d..00000000000
--- a/tests/language_2/optimize/cha_deopt3_deferred_lib.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "cha_deopt3_lib.dart";
-
-class U implements T {}
-
-make_u() => new U();
diff --git a/tests/language_2/optimize/cha_deopt3_lib.dart b/tests/language_2/optimize/cha_deopt3_lib.dart
deleted file mode 100644
index 20231d9c6a5..00000000000
--- a/tests/language_2/optimize/cha_deopt3_lib.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library mylib;
-
-class A {}
-
-class B {}
-
-class C {}
-
-class D {}
-
-class E {}
-
-class T {}
diff --git a/tests/language_2/optimize/cha_deopt3_test.dart b/tests/language_2/optimize/cha_deopt3_test.dart
deleted file mode 100644
index 6bb78fb9f3d..00000000000
--- a/tests/language_2/optimize/cha_deopt3_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=100 --no-background-compilation
-// VMOptions=--optimization-counter-threshold=100 --no-background-compilation --no-use-field-guards
-
-// @dart = 2.9
-
-// Test lazy deoptimization at type checks with interface implementation.
-
-import "package:expect/expect.dart";
-import "cha_deopt3_lib.dart";
-import "cha_deopt3_deferred_lib.dart" deferred as d;
-
-var loaded = false;
-
-main() {
-  for (var i = 0; i < 2000; i++) bla();
-  Expect.equals(1, bla());
-  d.loadLibrary().then((_) {
-    loaded = true;
-    Expect.equals(1, bla());
-  });
-}
-
-make_array() {
-  try {
-    if (loaded) {
-      return [new A(), new B(), new C(), new D(), new E(), d.make_u()];
-    } else {
-      return [new A(), new B(), new C(), new D(), new E(), new T()];
-    }
-  } catch (e) {}
-}
-
-bla() {
-  var count = 0;
-  for (var x in make_array()) {
-    if (x is T) count++;
-  }
-  return count;
-}
diff --git a/tests/language_2/optimize/code_motion_crash_test.dart b/tests/language_2/optimize/code_motion_crash_test.dart
deleted file mode 100644
index 06f81a73209..00000000000
--- a/tests/language_2/optimize/code_motion_crash_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to crash during the
-// [SsaCodeMotion] phase on this code.
-
-class A {
-  final finalField;
-  var field = 2;
-  foo() {
-    new A().field = 42;
-  }
-
-  A._() : finalField = 42;
-  A() : finalField = [new A._(), new B(), new Object()][1];
-}
-
-class B {
-  foo() {}
-  bar() {}
-}
-
-main() {
-  var a = new A();
-  // Create a new block for SsaCodeMotion: the phase will want to move
-  // field access on [a] to this block.
-  if (true) {
-    var b = a.finalField;
-    var d = a.field;
-    b.bar();
-
-    // [c] gets GVN'ed with [b]. As a consequence, the type propagator
-    // that runs after GVN sees that [c] can only be a [B] because of
-    // the call to [bar].
-    var c = a.finalField;
-    c.foo();
-
-    // [e] does not get GVN'ed because the GVN phase sees [c.foo()] as
-    // having side effects.
-    var e = a.field;
-    if (d + e != 4) throw 'Test failed';
-  }
-}
diff --git a/tests/language_2/optimize/constant_fold_equals_test.dart b/tests/language_2/optimize/constant_fold_equals_test.dart
deleted file mode 100644
index 21705d039d0..00000000000
--- a/tests/language_2/optimize/constant_fold_equals_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  dynamic a = 'foo';
-  for (int i = 0; i < 10; i++) {
-    if (i == 0) {
-      Expect.isTrue(identical(a, 'foo'));
-    } else {
-      Expect.isTrue(a == 2);
-    }
-    a = 2;
-  }
-}
diff --git a/tests/language_2/optimize/constant_propagation_phis_test.dart b/tests/language_2/optimize/constant_propagation_phis_test.dart
deleted file mode 100644
index 2428d0a013c..00000000000
--- a/tests/language_2/optimize/constant_propagation_phis_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that constant propagation correctly updates phis when predecessor's
-// reachability changes.
-
-final keys = const ["keyA"];
-final values = const ["a"];
-
-main() {
-  for (var i = 0; i < 20; i++) test(keys[0]);
-}
-
-test(key) {
-  var ref = key2value(key);
-  Expect.equals("a", (ref == null) ? "-" : ref);
-}
-
-key2value(key) {
-  var index = indexOf(keys, key);
-  return (index == -1) ? null : values[index];
-}
-
-indexOf(keys, key) {
-  for (var i = keys.length - 1; i >= 0; i--) {
-    var equals = keys[i] == key;
-    if (equals) return i;
-  }
-  return -1;
-}
diff --git a/tests/language_2/optimize/critical_edge2_test.dart b/tests/language_2/optimize/critical_edge2_test.dart
deleted file mode 100644
index 3f3c81d8944..00000000000
--- a/tests/language_2/optimize/critical_edge2_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test broke dart2js.
-// A compiler must not construct a critical edge on this program.
-//
-// See critical_edge_test.dart for a description of the problem.
-
-import "package:expect/expect.dart";
-
-String parse(String uri) {
-  int index = 0;
-  int char = -1;
-
-  void parseAuth() {
-    index;
-    char;
-  }
-
-  while (index < 1000) {
-    char = uri.codeUnitAt(index);
-    if (char == 1234) {
-      break;
-    }
-    if (char == 0x3A) {
-      return "good";
-    }
-    index++;
-  }
-
-  print(char);
-  return "bad";
-}
-
-main() {
-  Expect.equals("good", parse("dart:_foreign_helper"));
-}
diff --git a/tests/language_2/optimize/critical_edge_test.dart b/tests/language_2/optimize/critical_edge_test.dart
deleted file mode 100644
index 9226b206b6c..00000000000
--- a/tests/language_2/optimize/critical_edge_test.dart
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test broke dart2js.
-// A compiler must not construct a critical edge on this program.
-//
-// In particular we have to watch out for:
-//  - the while-loop branch going to the body-block and to the exit-block, and
-//  - the exit-block having as incoming the condition-block and the
-//    break-blocks.
-//
-// Triggering the bug is relatively hard, since pushing instructions back the
-// exit-block to the incoming blocks is not guaranteed to trigger an error.
-// Dart2js frequently ended up with update-assignments just before the
-// condition:
-//    for (int i = 0; state = state0, i < 10; i++) {
-//      if (..) { state = 1; }
-//      ...
-//    }
-//    use(state);
-//
-// In this case the "state" variable was assigned before the loop and then
-// reassigned before the break. The exit-block pushed the assignment back
-// to its incoming blocks and that's why the "state = state0" assignment ended
-// up just before the condition.
-// Note that the assignment was executed at every iteration instead of just
-// when exiting the loop.
-// This repeated assignments don't have any negative effect unless the state
-// variable is also assigned and used inside the loop-body. It turns out that
-// this is very rare and needs some tricks to make happen.
-
-import "package:expect/expect.dart";
-
-String parse(String uri) {
-  int index = 0;
-  int char = -1;
-
-  void parseAuth() {
-    index;
-    char;
-  }
-
-  int state = 0;
-  while (true) {
-    char = uri.codeUnitAt(index);
-    if (char == 1234) {
-      state = (index == 0) ? 1 : 2;
-      break;
-    }
-    if (char == 0x3A) {
-      return "good";
-    }
-    index++;
-  }
-
-  if (state == 1) {
-    print(char == 1234);
-    print(index == uri.length);
-  }
-  return "bad";
-}
-
-main() {
-  Expect.equals("good", parse("dart:_foreign_helper"));
-}
diff --git a/tests/language_2/optimize/dead_field_access_test.dart b/tests/language_2/optimize/dead_field_access_test.dart
deleted file mode 100644
index 361e2742c57..00000000000
--- a/tests/language_2/optimize/dead_field_access_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class Foo {
-  var field = 10;
-}
-
-@pragma('dart2js:noInline')
-getField(x) {
-  x.field;
-  return 34;
-}
-
-main() {
-  Expect.equals(34, getField(new Foo()));
-  Expect.throws(() => getField(null));
-}
diff --git a/tests/language_2/optimize/deopt_inlined_function_lazy_test.dart b/tests/language_2/optimize/deopt_inlined_function_lazy_test.dart
deleted file mode 100644
index feda11769dd..00000000000
--- a/tests/language_2/optimize/deopt_inlined_function_lazy_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test lazy deoptimization from within an inlined function.
-// VMOptions=--deoptimize_alot --optimization-counter-threshold=10 --no-use-osr
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-call_native(x) {
-  // Wrap in try to avoid inlining.
-  // Use a large int so the intrinsifier does not fire.
-  try {
-    return x + 9223372036854775807;
-  } finally {}
-}
-
-bar(x) {
-  if (x < 0) call_native(x);
-  x = 42;
-  return x;
-}
-
-foo(x) {
-  x = bar(x);
-  return x;
-}
-
-main() {
-  Expect.equals(42, foo(1));
-  for (var i = 0; i < 20; i++) foo(7);
-  Expect.equals(42, foo(2));
-  // Call the runtime to trigger lazy deopt with foo/bar on the stack.
-  Expect.equals(42, foo(-1));
-}
diff --git a/tests/language_2/optimize/deopt_inlined_function_test.dart b/tests/language_2/optimize/deopt_inlined_function_test.dart
deleted file mode 100644
index ad2760015c2..00000000000
--- a/tests/language_2/optimize/deopt_inlined_function_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test deoptimization from within an inlined function.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  deopt_here() => 1;
-}
-
-class B {
-  deopt_here() => 2;
-}
-
-dynamic obj = new A();
-
-bar(x) {
-  x = 42;
-  obj.deopt_here();
-  return x;
-}
-
-foo(x) {
-  x = bar(x);
-  return x;
-}
-
-main() {
-  Expect.equals(42, foo(1));
-  for (var i = 0; i < 2000; i++) foo(7);
-  Expect.equals(42, foo(2));
-  obj = new B();
-  Expect.equals(42, foo(3)); // <-- deoptimization via foo/bar/obj.deopt_here
-}
diff --git a/tests/language_2/optimize/deopt_lazy_finalization_test.dart b/tests/language_2/optimize/deopt_lazy_finalization_test.dart
deleted file mode 100644
index 3c0f27677d0..00000000000
--- a/tests/language_2/optimize/deopt_lazy_finalization_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test deoptimization caused by lazy finalization.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.equals(20000, part1());
-  // Trigger lazy finalization of class B, which should invalidate
-  // optimized code for A.loop.
-  Expect.equals(-20000, part2());
-}
-
-part1() {
-  var a = new A();
-  a.loop();
-  // Second invocation calls optimized code.
-  return a.loop();
-}
-
-part2() {
-  var b = new B();
-  b.loop();
-  // Second invocation calls optimized code.
-  return b.loop();
-}
-
-class A {
-  foo() => 2;
-
-  loop() {
-    var sum = 0;
-    for (int i = 0; i < 10000; i++) {
-      sum += foo();
-    }
-    return sum;
-  }
-}
-
-class Aa extends A {}
-
-class B extends Aa {
-  foo() => -2;
-}
diff --git a/tests/language_2/optimize/deopt_no_feedback_test.dart b/tests/language_2/optimize/deopt_no_feedback_test.dart
deleted file mode 100644
index bd5af7f32ae..00000000000
--- a/tests/language_2/optimize/deopt_no_feedback_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test deoptimization caused by running code that did not collect type
-// feedback before.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-testStoreIndexed() {
-  test(a, i, v, flag) {
-    if (flag) {
-      // No type feedback in first pass
-      return a[i] = v;
-    } else {
-      return a[i] = i;
-    }
-  }
-
-  var a = new List<dynamic>.filled(10, null);
-  for (var i = 0; i < 20; i++) {
-    var r = test(a, 3, 888, false);
-    Expect.equals(3, r);
-    Expect.equals(3, a[3]);
-  }
-  // Deopt.
-  var r = test(a, 3, 888, true);
-  Expect.equals(888, r);
-  Expect.equals(888, a[3]);
-}
-
-testIncrLocal() {
-  test(a, flag) {
-    if (flag) {
-      a++;
-      return a;
-    } else {
-      return -1;
-    }
-  }
-
-  for (var i = 0; i < 20; i++) {
-    var r = test(10, false);
-    Expect.equals(-1, r);
-  }
-  // Deopt.
-  var r = test(10, true);
-  Expect.equals(11, r);
-}
-
-main() {
-  for (var i = 0; i < 20; i++) {}
-  testStoreIndexed();
-  testIncrLocal();
-}
diff --git a/tests/language_2/optimize/deopt_smi_op_test.dart b/tests/language_2/optimize/deopt_smi_op_test.dart
deleted file mode 100644
index 851a334aa44..00000000000
--- a/tests/language_2/optimize/deopt_smi_op_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test hoisted (loop-invariant) smi operations with deoptimization.
-
-test_mul(h) {
-  var x;
-  for (var i = 0; i < 3; i++) {
-    x = h * 100000;
-  }
-  return x;
-}
-
-test_neg(h) {
-  var x;
-  for (var i = 0; i < 3; i++) {
-    x = -h;
-  }
-  return x;
-}
-
-main() {
-  for (var i = 0; i < 20; i++) test_mul(10);
-  Expect.equals(1000000, test_mul(10));
-  Expect.equals(100000000000, test_mul(1000000));
-  Expect.equals(100000 * 0x3fffffffffffffff, test_mul(0x3fffffffffffffff));
-
-  for (var i = 0; i < 20; i++) test_neg(10);
-  Expect.equals(-10, test_neg(10));
-  Expect.equals(0x40000000, test_neg(-0x40000000));
-  Expect.equals(0x4000000000000000, test_neg(-0x4000000000000000));
-}
diff --git a/tests/language_2/optimize/deoptimized_function_on_stack_test.dart b/tests/language_2/optimize/deoptimized_function_on_stack_test.dart
deleted file mode 100644
index a1ab683ce9d..00000000000
--- a/tests/language_2/optimize/deoptimized_function_on_stack_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// This is a test for deoptimization infrastructure and to reproduce the
-// failure from bug 5442338.
-
-main() {
-  warmup();
-  runTest();
-}
-
-// Create a situation where method 'call' is optimized for using class A
-// when calling foo.
-warmup() {
-  List a = [new A(), new A(), new A(), new A()];
-  var res = 0;
-  for (int i = 0; i < 20; i++) {
-    res = call(a, 0);
-  }
-  Expect.equals(10, res);
-}
-
-// Create a situation where several optimized frames of 'call' are on stack
-// when deoptimization occurs because B.foo is called. After the first
-// deoptimization, several optimized frames of 'call' are still on stack and
-// some of them will be deoptimized.
-runTest() {
-  List a = [new A(), new A(), new B(), new A(), new B(), new B()];
-  var res = call(a, 0);
-  Expect.equals(35, res);
-}
-
-// This method will be optimized for using class A when calling 'foo' and
-// later will be deoptimized because B.foo is required.
-call(List a, int n) {
-  if (n < a.length) {
-    var sum = call(a, n + 1);
-    for (int i = n; i < a.length; i++) {
-      sum += a[i].foo();
-    }
-    return sum;
-  }
-  return 0;
-}
-
-class A {
-  foo() {
-    return 1;
-  }
-}
-
-class B {
-  foo() {
-    return 2;
-  }
-}
diff --git a/tests/language_2/optimize/hoisting_checked_mode_assert_test.dart b/tests/language_2/optimize/hoisting_checked_mode_assert_test.dart
deleted file mode 100644
index 12e1c71e81e..00000000000
--- a/tests/language_2/optimize/hoisting_checked_mode_assert_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test checked mode assertions inside loops.
-
-int foo(x, n) {
-  double z = 0.0;
-  for (var i = 0; i < n; i++) {
-    double z = x;
-  }
-  return 0;
-}
-
-main() {
-  for (var i = 0; i < 20; i++) foo(1.0, 10);
-  Expect.equals(0, foo(1.0, 10));
-  Expect.equals(0, foo(2, 0)); // Must not throw in checked mode.
-}
diff --git a/tests/language_2/optimize/inferrer_closure_test.dart b/tests/language_2/optimize/inferrer_closure_test.dart
deleted file mode 100644
index 2eaa3027a44..00000000000
--- a/tests/language_2/optimize/inferrer_closure_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to not see a closure could be
-// invoked through a getter access followed by an invocation.
-
-var closure = (Object a) => a.toString();
-
-get foo => closure;
-
-main() {
-  if (foo(42) != '42') {
-    throw 'Test failed';
-  }
-}
diff --git a/tests/language_2/optimize/inferrer_constructor2_test.dart b/tests/language_2/optimize/inferrer_constructor2_test.dart
deleted file mode 100644
index 3db6e2207df..00000000000
--- a/tests/language_2/optimize/inferrer_constructor2_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to optimistically infer the
-// wrong types for fields because of generative constructors being
-// inlined.
-
-import "package:expect/expect.dart";
-
-class A {
-  var foo;
-  var bar;
-
-  @pragma('vm:never-inline')
-  @pragma('dart2js:noInline')
-  A() {
-    // Currently defeat inlining by using a closure.
-    bar = () => 42;
-    foo = 54;
-  }
-  A.inline();
-}
-
-main() {
-  // Make sure A's constructor is analyzed first by surrounding the
-  // body by two allocations.
-  new A();
-  bar();
-  new A();
-}
-
-class B {
-  var bar;
-  var closure;
-  @pragma('vm:never-inline')
-  @pragma('dart2js:noInline')
-  B() {
-    // Currently defeat inlining by using a closure.
-    closure = () => 42;
-    bar = new A().foo;
-  }
-}
-
-@pragma('vm:never-inline')
-@pragma('dart2js:noInline')
-bar() {
-  // Make sure B's constructor is analyzed first by surrounding the
-  // body by two allocations.
-  new B();
-  // Currently defeat inlining by using a closure.
-  Expect.throwsNoSuchMethodError(() => new A.inline().foo + 42);
-  codegenLast();
-  new B();
-}
-
-@pragma('vm:never-inline')
-@pragma('dart2js:noInline')
-codegenLast() {
-  // This assignment currently defeats simple type inference, but not
-  // the optimistic inferrer.
-  new A().foo = new B().bar;
-  // Currently defeat inlining by using a closure.
-  new B().closure = () => 42;
-}
diff --git a/tests/language_2/optimize/inferrer_constructor3_test.dart b/tests/language_2/optimize/inferrer_constructor3_test.dart
deleted file mode 100644
index 4c37e33a20f..00000000000
--- a/tests/language_2/optimize/inferrer_constructor3_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to optimistically infer the
-// wrong types for fields because of generative constructors being
-// inlined.
-
-import "package:expect/expect.dart";
-
-class A {
-  var field;
-  A(this.field);
-}
-
-dynamic c = () => new List.filled(42, null)[0];
-
-main() {
-  bar();
-  // Defeat type inferencing.
-  new A(c());
-  doIt();
-  bar();
-}
-
-@pragma('vm:never-inline')
-@pragma('dart2js:noInline')
-doIt() {
-  () => 42;
-  var c = new A(null);
-  Expect.throwsNoSuchMethodError(() => c.field + 42);
-}
-
-@pragma('vm:never-inline')
-@pragma('dart2js:noInline')
-bar() {
-  () => 42;
-  return inlineLevel1();
-}
-
-inlineLevel1() {
-  return inlineLevel2();
-}
-
-inlineLevel2() {
-  return inlineLevel3();
-}
-
-inlineLevel3() {
-  return inlineLevel4();
-}
-
-inlineLevel4() {
-  return new A(42);
-}
diff --git a/tests/language_2/optimize/inferrer_constructor4_test.dart b/tests/language_2/optimize/inferrer_constructor4_test.dart
deleted file mode 100644
index 223ac4a8b05..00000000000
--- a/tests/language_2/optimize/inferrer_constructor4_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-escape(object) {
-  print(object.field + 42);
-}
-
-class A {
-  A() {
-    escape(this);
-  }
-}
-
-class B extends A {
-  var field;
-  B() {
-    field = 42;
-  }
-}
-
-main() {
-  Expect.throwsNoSuchMethodError(() => new B());
-}
diff --git a/tests/language_2/optimize/inferrer_constructor5_runtime_test.dart b/tests/language_2/optimize/inferrer_constructor5_runtime_test.dart
deleted file mode 100644
index 85b718a65b7..00000000000
--- a/tests/language_2/optimize/inferrer_constructor5_runtime_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class A {
-  A() {
-
-  }
-}
-
-class B extends A {
-  var field;
-  B() {
-    field = 42;
-  }
-}
-
-main() {
-
-}
diff --git a/tests/language_2/optimize/inferrer_constructor5_test.dart b/tests/language_2/optimize/inferrer_constructor5_test.dart
deleted file mode 100644
index 6ba164bcf3f..00000000000
--- a/tests/language_2/optimize/inferrer_constructor5_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  A() {
-    print(field + 42);
-    //    ^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-    // [cfe] The getter 'field' isn't defined for the class 'A'.
-  }
-}
-
-class B extends A {
-  var field;
-  B() {
-    field = 42;
-  }
-}
-
-main() {
-  Expect.throwsNoSuchMethodError(() => new B());
-}
diff --git a/tests/language_2/optimize/inferrer_constructor_test.dart b/tests/language_2/optimize/inferrer_constructor_test.dart
deleted file mode 100644
index 980a9473850..00000000000
--- a/tests/language_2/optimize/inferrer_constructor_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that dart2js type inferrer detects dead code.
-
-import "package:expect/expect.dart";
-
-class A {
-  var field;
-  A(test) {
-    if (test) {
-      return;
-      field = 42;
-    } else {
-      field = 54;
-    }
-  }
-}
-
-main() {
-  var a = new A(true);
-  Expect.throwsNoSuchMethodError(() => a.field + 42);
-}
diff --git a/tests/language_2/optimize/inferrer_named_parameter_test.dart b/tests/language_2/optimize/inferrer_named_parameter_test.dart
deleted file mode 100644
index fd95b33f2f9..00000000000
--- a/tests/language_2/optimize/inferrer_named_parameter_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js's type inferrer, that used to not
-// correctly infer optional named parameters.
-
-import "package:expect/expect.dart";
-
-@pragma('vm:never-inline')
-@pragma('dart2js:noInline')
-foo({path}) {
-  () => 42;
-  return path;
-}
-
-main() {
-  foo(path: '42');
-  Expect.isFalse(foo() is String);
-}
diff --git a/tests/language_2/optimize/inferrer_synthesized_constructor_test.dart b/tests/language_2/optimize/inferrer_synthesized_constructor_test.dart
deleted file mode 100644
index 876befd8446..00000000000
--- a/tests/language_2/optimize/inferrer_synthesized_constructor_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js's type inferrer that used to not
-// propagate default types in synthesized calls.
-
-import "package:expect/expect.dart";
-
-class A {
-  final x;
-  A([this.x = 'foo']);
-}
-
-class B extends A {
-  // The synthesized constructor was not saying that it would call
-  // [A]'s constructor with its default type.
-}
-
-main() {
-  // By calling [B]'s constructor with an int parameter, the inferrer
-  // used to only see this call and consider the [A.x] field to always
-  // be int.
-  Expect.equals(84, new A(42).x + 42);
-  Expect.throwsTypeError(() => new B().x + 42);
-}
diff --git a/tests/language_2/optimize/inferrer_synthesized_super_constructor2_test.dart b/tests/language_2/optimize/inferrer_synthesized_super_constructor2_test.dart
deleted file mode 100644
index 7b7bc356099..00000000000
--- a/tests/language_2/optimize/inferrer_synthesized_super_constructor2_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-bool inConstructor = false;
-
-class A {
-  A._() {
-    inConstructor = true;
-  }
-}
-
-class B extends A {
-  B() : super._();
-}
-
-main() {
-  new B();
-  if (!inConstructor) throw 'Test failed';
-}
diff --git a/tests/language_2/optimize/inferrer_synthesized_super_constructor_test.dart b/tests/language_2/optimize/inferrer_synthesized_super_constructor_test.dart
deleted file mode 100644
index 8b686aec72e..00000000000
--- a/tests/language_2/optimize/inferrer_synthesized_super_constructor_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  @pragma('vm:never-inline')
-  @pragma('dart2js:noInline')
-  A([a]) {
-    () => 42;
-    if (a != null) throw 'Test failed';
-  }
-}
-
-class B extends A {
-  B();
-}
-
-main() {
-  new B();
-}
diff --git a/tests/language_2/optimize/inferrer_this_access_test.dart b/tests/language_2/optimize/inferrer_this_access_test.dart
deleted file mode 100644
index 2c9c1317fec..00000000000
--- a/tests/language_2/optimize/inferrer_this_access_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  var fisk;
-  A() {
-    // dart2js's inferrer used to not recognize the following call to
-    // be on [this].
-    fisk--;
-    fisk = 42;
-  }
-}
-
-abstract class B {
-  var a;
-  B() {
-    hest = 54;
-    a = 42;
-  }
-  set hest(value);
-}
-
-class C extends B {
-  set hest(value) {
-    a + 42;
-  }
-}
-
-main() {
-  Expect.throwsNoSuchMethodError(() => new A());
-  Expect.throwsNoSuchMethodError(() => new C());
-}
diff --git a/tests/language_2/optimize/inline_add_constants_to_initial_env_test.dart b/tests/language_2/optimize/inline_add_constants_to_initial_env_test.dart
deleted file mode 100644
index 04e90c6b593..00000000000
--- a/tests/language_2/optimize/inline_add_constants_to_initial_env_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test that SSA values are correctly numbered after inlining that adds
-// constants to original environment.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-h(x, y) => x == y;
-
-g(y, [x0 = 0, x1 = 1, x2 = 2, x3 = 3]) => y + x0 + x1 + x2 + x3;
-
-f(y) => h(y, g(y));
-
-main() {
-  for (var i = 0; i < 20; i++) f(i);
-}
diff --git a/tests/language_2/optimize/inline_argument_test.dart b/tests/language_2/optimize/inline_argument_test.dart
deleted file mode 100644
index 9ef9919e705..00000000000
--- a/tests/language_2/optimize/inline_argument_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test that when inlining A.foo, we're not evaluating the argument
-// twice.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  var field = 0;
-
-  foo(b) {
-    Expect.equals(0, b);
-    Expect.equals(0, b);
-  }
-
-  bar() {
-    foo(field++);
-  }
-}
-
-main() {
-  var a = new A();
-  a.bar();
-  Expect.equals(1, a.field);
-}
diff --git a/tests/language_2/optimize/inline_closure_with_constant_arguments_test.dart b/tests/language_2/optimize/inline_closure_with_constant_arguments_test.dart
deleted file mode 100644
index c72511d7a68..00000000000
--- a/tests/language_2/optimize/inline_closure_with_constant_arguments_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test inlining of a closure call with constant propagation.
-primeForSmis(bool b) {
-  smi_op(a, b) => a + b;
-  if (b) {
-    return smi_op(1, 2);
-  } else {
-    return smi_op(true, false);
-  }
-}
-
-main() {
-  for (var i = 0; i < 20; i++) {
-    Expect.equals(3, primeForSmis(true));
-  }
-}
diff --git a/tests/language_2/optimize/inline_conditional_test.dart b/tests/language_2/optimize/inline_conditional_test.dart
deleted file mode 100644
index 00766fd34f1..00000000000
--- a/tests/language_2/optimize/inline_conditional_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js. There was a bug in the variable
-// allocator when a pure (side-effect free) instruction stand
-// in-between an inlined `if` and its inlined expression.
-
-import "package:expect/expect.dart";
-
-var topLevel;
-
-// Make [foo] an inlineable expression with a return type check.
-Function foo(c) {
-  // Use [c] twice to make sure it is stored in a local.
-  return (c is Function ? null : c);
-}
-
-bar() {
-  var b = new Object();
-  f() {
-    // Inside a closure, locals that escape are stored in a closure
-    // class. By using [b] in both branches, the optimizers will move
-    // the fetching of [b] before the `if`. This puts the fetching
-    // instruction in between the `if` and the expression of the `if`.
-    // This instruction being pure, the variable allocator was dealing
-    // with it in a special way.
-    //
-    // Because the expression in the `if` is being recognized by the
-    // optimizers as being also a JavaScript expression, we do not
-    // allocate a name for it. But some expressions that it uses still
-    // can have a name, and our variable allocator did not handle live
-    // variables due to the inlining of the ternary expression in [foo].
-    if (foo(topLevel) == null) {
-      return b.toString();
-    } else {
-      return b.hashCode;
-    }
-  }
-
-  return f();
-}
-
-main() {
-  // Make sure the inferrer does not get an exact type for [topLevel].
-  topLevel = new Object();
-  topLevel = main;
-  var res = bar();
-  Expect.isTrue(res is String);
-}
diff --git a/tests/language_2/optimize/inline_effect_context_test.dart b/tests/language_2/optimize/inline_effect_context_test.dart
deleted file mode 100644
index df085faf77f..00000000000
--- a/tests/language_2/optimize/inline_effect_context_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test inlining of simple function with control flow in an effect context.
-// Optimize function foo with instance of A and inlined function bar. Call later
-// with instance of B and cause deoptimization.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  var x = 1;
-}
-
-class B {
-  var x = 0;
-}
-
-int bar(o) {
-  if (o.x > 0) {
-    // <-- Deoptimize from inner frame.
-    return 1;
-  } else {
-    return 0;
-  }
-}
-
-int foo(o) {
-  bar(o); // <-- Used in an effect context.
-  return 1;
-}
-
-main() {
-  dynamic o = new A();
-  int sum = 0;
-  for (int i = 0; i < 20; i++) sum += foo(o);
-  o = new B();
-  sum += foo(o); // <-- Cause deoptimization of bar within foo.
-  Expect.equals(21, sum);
-}
diff --git a/tests/language_2/optimize/inline_getter_test.dart b/tests/language_2/optimize/inline_getter_test.dart
deleted file mode 100644
index a46d36139ec..00000000000
--- a/tests/language_2/optimize/inline_getter_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test inlining of instance getters.
-// Three classes access always the same field. Optimize method foo and inline
-// getter for classes 'A' and 'B'. Call later via 'C' and cause deoptimization.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  int f;
-  A(this.f) {}
-  int foo() {
-    return f; // <-- inline getter for classes 'A' and 'B'.
-  }
-}
-
-class B extends A {
-  B() : super(2) {}
-}
-
-class C extends A {
-  C() : super(10) {}
-}
-
-class InlineGetterTest {
-  static testMain() {
-    var a = new A(1);
-    var b = new B();
-    int sum = 0;
-    for (int i = 0; i < 20; i++) {
-      sum += a.foo();
-      sum += b.foo();
-    }
-    var c = new C();
-    sum += c.foo(); // <-- Deoptimizing.
-    Expect.equals(70, sum);
-  }
-}
-
-main() {
-  InlineGetterTest.testMain();
-}
diff --git a/tests/language_2/optimize/inline_in_for_initializer_and_bailout_test.dart b/tests/language_2/optimize/inline_in_for_initializer_and_bailout_test.dart
deleted file mode 100644
index 21f86833b73..00000000000
--- a/tests/language_2/optimize/inline_in_for_initializer_and_bailout_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-dynamic a = 42;
-
-inlineMe() {
-  // Add control flow to confuse the compiler.
-  if (a is int) {
-    print('a is int');
-  }
-  return a[0];
-}
-
-main() {
-  a = [42];
-  // Make [main] recursive to force a bailout version.
-  if (false) main();
-  int i = 0;
-  for (i = inlineMe(); i < 42; i++);
-  Expect.equals(42, i);
-}
diff --git a/tests/language_2/optimize/inline_super_field_lib.dart b/tests/language_2/optimize/inline_super_field_lib.dart
deleted file mode 100644
index d3f232aa89e..00000000000
--- a/tests/language_2/optimize/inline_super_field_lib.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library inline_super_field_lib;
-
-// The comment is inserted to ensure that the offset of [bar] is not within
-// the length of the [:inline_super_field_test.dart] script.
-//------------------------------------------------------------------------------
-//------------------------------------------------------------------------------
-//------------------------------------------------------------------------------
-//------------------------------------------------------------------------------
-//------------------------------------------------------------------------------
-//------------------------------------------------------------------------------
-//------------------------------------------------------------------------------
-//------------------------------------------------------------------------------
-//------------------------------------------------------------------------------
-//------------------------------------------------------------------------------
-//------------------------------------------------------------------------------
-
-var i = 0;
-
-class M1 {
-  final bar = ++i;
-}
diff --git a/tests/language_2/optimize/inline_super_field_test.dart b/tests/language_2/optimize/inline_super_field_test.dart
deleted file mode 100644
index 3b4d8f32ec5..00000000000
--- a/tests/language_2/optimize/inline_super_field_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that source maps use the correct compilation unit when super class
-// fields from another compilation unit are inlined.
-
-library inline_super_field_test;
-
-import 'package:expect/expect.dart';
-import "inline_super_field_lib.dart";
-
-class S {}
-
-class C extends S with M1 {}
-
-void main() {
-  var c = new C();
-  Expect.equals(1, c.bar);
-}
diff --git a/tests/language_2/optimize/inline_super_part.dart b/tests/language_2/optimize/inline_super_part.dart
deleted file mode 100644
index 9708bb7abdd..00000000000
--- a/tests/language_2/optimize/inline_super_part.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-part of inline_super_test;
-
-class Player extends LivingActor {
-  Player() : super();
-}
diff --git a/tests/language_2/optimize/inline_super_test.dart b/tests/language_2/optimize/inline_super_test.dart
deleted file mode 100644
index 876fee41b20..00000000000
--- a/tests/language_2/optimize/inline_super_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js issue 6639.
-
-library inline_super_test;
-
-import "package:expect/expect.dart";
-
-part 'inline_super_part.dart';
-
-// Long comment to ensure source positions in the following code are
-// larger than the part file.  Best way to ensure that is to include
-// the part as a comment:
-//
-// class Player extends LivingActor {
-//   Player (deathCallback) : super(null, deathCallback);
-// }
-
-class Percept {}
-
-class Actor {
-  final percept;
-  Actor(this.percept);
-}
-
-class LivingActor extends Actor {
-  // The bug occurs when inlining the node [:new Percept():] into
-  // [Actor]'s constructor.  When this inlining is being initiated
-  // from [Player], we must take care to ensure that we know that we
-  // are inlining from this location, and not [Player].
-  LivingActor() : super(new Percept());
-}
-
-main() {
-  Expect.isTrue(new Player().percept is Percept);
-}
diff --git a/tests/language_2/optimize/inline_test.dart b/tests/language_2/optimize/inline_test.dart
deleted file mode 100644
index 8420bc3ecdc..00000000000
--- a/tests/language_2/optimize/inline_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to produce a non-valid SSA
-// graph when inlining within a loop.
-
-class X {
-  void x(a, b) {
-    do {
-      if (identical(a, b)) {
-        break;
-      }
-    } while (p(a, b));
-  }
-
-  bool p(a, b) {
-    return identical(a, b);
-  }
-}
-
-main() {
-  var x = new X();
-  x.x(1, 2);
-}
diff --git a/tests/language_2/optimize/inline_test_context_test.dart b/tests/language_2/optimize/inline_test_context_test.dart
deleted file mode 100644
index 2c111836e83..00000000000
--- a/tests/language_2/optimize/inline_test_context_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test inlining of simple function with control flow in a test context.
-// Optimize function foo with instance of A and inlined function bar. Call later
-// with instance of B and cause deoptimization.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  var x = 1;
-}
-
-class B {
-  var x = 0;
-}
-
-bool bar(o) {
-  if (o.x > 0) {
-    // <-- Deoptimize from inner frame.
-    return true;
-  } else {
-    return false;
-  }
-}
-
-int foo(o) {
-  if (bar(o)) {
-    // <-- Used in a test context.
-    return 1;
-  } else {
-    return 0;
-  }
-}
-
-main() {
-  dynamic o = new A();
-  int sum = 0;
-  for (int i = 0; i < 20; i++) sum += foo(o);
-  o = new B();
-  sum += foo(o); // <-- Cause deoptimization of bar within foo.
-  Expect.equals(20, sum);
-}
diff --git a/tests/language_2/optimize/inline_throw_test.dart b/tests/language_2/optimize/inline_throw_test.dart
deleted file mode 100644
index 9b6ca2a4a2d..00000000000
--- a/tests/language_2/optimize/inline_throw_test.dart
+++ /dev/null
@@ -1,305 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test program to test check that we don't fail to compile when an
-// inlinable method contains a throw.
-
-import 'package:expect/expect.dart';
-
-dynamic x = false;
-
-bool called;
-
-bool callMeTrue() {
-  called = true;
-  return true;
-}
-
-bool callMeFalse() {
-  called = true;
-  return false;
-}
-
-void callMe() {
-  called = true;
-}
-
-testCallThenThrow(fn) {
-  called = false;
-  Expect.throws(() => fn());
-  Expect.isTrue(called);
-}
-
-testCall(fn) {
-  called = false;
-  fn();
-  Expect.isTrue(called);
-}
-
-testNoThrow(fn) {
-  called = false;
-  Expect.throws(() => fn());
-  Expect.isFalse(called);
-}
-
-kast(x) {
-  throw x;
-}
-
-ternary(a, b, c) {
-  if (x == 2) throw "ternary";
-}
-
-hest() => kast("hest");
-hest2() {
-  return kast("hest2");
-}
-
-foo() => true || kast("foo");
-bar() => false || kast("foo");
-barc() => callMeTrue() || kast("foo");
-barCallThrow() => callMeFalse() || kast("foo");
-baz(x) => x ? kast("baz") : 0;
-bazc() => callMeFalse() ? kast("baz") : 0;
-bazCallThrow() => callMeTrue() ? kast("baz") : 0;
-fizz(x) => x ? 0 : kast("baz");
-fizzc() => callMeTrue() ? 0 : kast("baz");
-fizzCallThrow() => callMeFalse() ? 0 : kast("baz");
-fuzz() => kast("baz") ? 0 : 1;
-farce() => !kast("baz");
-unary() => ~(kast("baz"));
-boo() {
-  callMe();
-  x = kast("boo");
-}
-
-yo() {
-  throw kast("yo");
-}
-
-bin() {
-  return 5 * kast("bin");
-}
-
-binCallThrow() {
-  return (callMe() as dynamic) * kast("binct");
-}
-
-hoo() {
-  x[kast("hoo")] = 0;
-  x[kast("hoo")];
-  kast("hoo").x = 0;
-  kast("hoo").x;
-}
-
-switcheroo() {
-  switch (kast("switcheroo")) {
-    case 0:
-      boo();
-  }
-}
-
-class ThrowConstructor {
-  ThrowConstructor()
-      : foo = callMeTrue(),
-        bar = kast("ThrowConstructor") {
-    called = false;
-  }
-
-  bool foo;
-  var bar;
-}
-
-throwConstructor() {
-  called = false;
-  return new ThrowConstructor();
-}
-
-cascade() {
-  return []..add(callMeTrue())..add(kast("cascade"));
-}
-
-interpole() => "inter${kast('tada!')}pole";
-interpoleCallThrow() => "inter${callMeTrue()}...${kast('tada!')}pole";
-
-call1() => ternary(0, kast("call1"), 1);
-call2() => ternary(kast("call2"), 0, 1);
-call3() => ternary(0, 1, kast("call3"));
-call1c() => ternary(callMe() as dynamic, kast("call1"), 1);
-call3c() => ternary(callMeTrue(), 1, kast("call3"));
-call4c() => ternary(0, callMeTrue(), kast("call3"));
-
-sendSet() {
-  var x = kast("sendSet");
-}
-
-sendSetCallThrow() {
-  var x = callMe() as dynamic, y = kast("sendSet");
-}
-
-isSend() => kast("isSend") is int;
-
-vile() {
-  while (kast("vile")) {
-    callMe();
-  }
-}
-
-dovile() {
-  var x = 0;
-  do {
-    callMe();
-    x = 1;
-  } while (kast("vile"));
-  print(x);
-}
-
-dovileBreak() {
-  var x = 0;
-  do {
-    callMe();
-    x = 1;
-    break;
-  } while (kast("vile"));
-  return (x);
-}
-
-dovileContinue() {
-  var x = 0;
-  do {
-    callMe();
-    x = 1;
-    continue;
-  } while (kast("vile"));
-  return (x);
-}
-
-dovileBreakContinue(x) {
-  do {
-    callMe();
-    if (x == 1) break;
-    continue;
-  } while (kast("vile"));
-  return (x);
-}
-
-faar1() {
-  callMe();
-  for (kast("faar"); called = false; called = false) {
-    called = false;
-  }
-}
-
-faar2() {
-  for (callMe(); kast("faar"); called = false) {
-    called = false;
-  }
-}
-
-faar3() {
-  for (; true; kast("faar")) {
-    callMe();
-  }
-  called = false;
-}
-
-faar4() {
-  callMe();
-  for (kast("faar"); called = false; called = false) {
-    called = false;
-    continue;
-  }
-}
-
-faar5() {
-  for (callMe(); kast("faar"); called = false) {
-    called = false;
-    continue;
-  }
-}
-
-faar6() {
-  for (; true; kast("faar")) {
-    callMe();
-    continue;
-  }
-  called = false;
-}
-
-faar7() {
-  callMe();
-  for (kast("faar"); called = false; called = false) {
-    called = false;
-    break;
-  }
-}
-
-faar8() {
-  for (callMe(); kast("faar"); called = false) {
-    called = false;
-    break;
-  }
-}
-
-faar9() {
-  for (; true; kast("faar")) {
-    callMe();
-    break;
-    called = false;
-  }
-}
-
-main() {
-  Expect.throws(hest);
-  Expect.throws(hest2);
-  foo();
-  Expect.throws(bar);
-  testCall(barc);
-  testCallThenThrow(barCallThrow);
-  Expect.equals(0, baz(false));
-  Expect.throws(() => baz(true));
-  testCall(bazc);
-  testCallThenThrow(bazCallThrow);
-  Expect.throws(() => fizz(false));
-  testCall(fizzc);
-  testCallThenThrow(fizzCallThrow);
-  Expect.throws(fuzz);
-  Expect.throws(farce);
-  Expect.throws(unary);
-  testCallThenThrow(boo);
-  Expect.throws(yo);
-  Expect.throws(bin);
-  testCallThenThrow(binCallThrow);
-  Expect.throws(hoo);
-  Expect.throws(switcheroo);
-  Expect.throws(interpole);
-  testCallThenThrow(interpoleCallThrow);
-  Expect.throws(call1);
-  Expect.throws(call2);
-  Expect.throws(call3);
-  testCallThenThrow(call1c);
-  testCallThenThrow(call3c);
-  testCallThenThrow(call4c);
-  Expect.throws(sendSet);
-  testCallThenThrow(sendSetCallThrow);
-  Expect.throws(isSend);
-  testNoThrow(vile);
-  testCallThenThrow(dovile);
-  testCall(dovileBreak);
-  testCallThenThrow(dovileContinue);
-  testCallThenThrow(throwConstructor);
-  testCallThenThrow(cascade);
-  dovileBreakContinue(1);
-  testCallThenThrow(faar1);
-  testCallThenThrow(faar2);
-  testCallThenThrow(faar3);
-  testCallThenThrow(faar4);
-  testCallThenThrow(faar5);
-  testCallThenThrow(faar6);
-  testCallThenThrow(faar7);
-  testCallThenThrow(faar8);
-  testCall(faar9);
-}
diff --git a/tests/language_2/optimize/inline_value_context_test.dart b/tests/language_2/optimize/inline_value_context_test.dart
deleted file mode 100644
index b876bfb7b6e..00000000000
--- a/tests/language_2/optimize/inline_value_context_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test inlining of simple function with control flow in a value context.
-// Optimize function foo with instance of A and inlined function bar. Call later
-// with instance of B and cause deoptimization.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  var x = 1;
-}
-
-class B {
-  var x = 0;
-}
-
-int bar(o) {
-  if (o.x > 0) {
-    // <-- Deoptimize from inner frame.
-    return 1;
-  } else {
-    return 0;
-  }
-}
-
-int foo(o) {
-  if (bar(o) > 0) {
-    // <-- Used in a value context.
-    return 1;
-  } else {
-    return 0;
-  }
-}
-
-main() {
-  dynamic o = new A();
-  int sum = 0;
-  for (int i = 0; i < 20; i++) sum += foo(o);
-  o = new B();
-  sum += foo(o); // <-- Cause deoptimization of bar within foo.
-  Expect.equals(20, sum);
-}
diff --git a/tests/language_2/optimize/isempty_test.dart b/tests/language_2/optimize/isempty_test.dart
deleted file mode 100644
index 08ad4d383f7..00000000000
--- a/tests/language_2/optimize/isempty_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr
-
-// @dart = 2.9
-
-// Test optimization and polymorphic inlining of String.isEmpty.
-
-import "package:expect/expect.dart";
-
-test(s) => s.isEmpty;
-
-main() {
-  var x = "abc";
-  var y = [123, 12345, 765];
-  Expect.equals(false, test(x));
-  Expect.equals(false, test(y));
-  for (var i = 0; i < 20; i++) test(x);
-  Expect.equals(false, test(x));
-  Expect.equals(false, test(y));
-}
diff --git a/tests/language_2/optimize/licm2_test.dart b/tests/language_2/optimize/licm2_test.dart
deleted file mode 100644
index 4ad53930811..00000000000
--- a/tests/language_2/optimize/licm2_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that a loop invariant code motion optimization does not try to
-// hoist instructions that may throw.
-
-import "package:expect/expect.dart";
-
-var a = 42;
-var b;
-
-main() {
-  Expect.throws(() {
-    while (true) {
-      a = 54;
-      b.length;
-    }
-  });
-  b = [];
-  Expect.equals(54, a);
-}
diff --git a/tests/language_2/optimize/licm3_test.dart b/tests/language_2/optimize/licm3_test.dart
deleted file mode 100644
index 15f916cfbd2..00000000000
--- a/tests/language_2/optimize/licm3_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that a loop invariant code motion optimization correctly hoists
-// instructions that may cause deoptimization.
-
-import "package:expect/expect.dart";
-
-foo(o) {
-  var r = 0;
-  for (var i = 0; i < 3; i++) {
-    r += o.z;
-  }
-  return r;
-}
-
-class A {
-  var z = 3;
-}
-
-main() {
-  var a = new A();
-  for (var i = 0; i < 10000; i++) foo(a);
-  Expect.equals(9, foo(a));
-  Expect.throws(() => foo(42));
-  for (var i = 0; i < 10000; i++) foo(a);
-  Expect.throws(() => foo(42));
-}
diff --git a/tests/language_2/optimize/licm_test.dart b/tests/language_2/optimize/licm_test.dart
deleted file mode 100644
index 3be61450ac1..00000000000
--- a/tests/language_2/optimize/licm_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var sum = 0;
-var foo = 0;
-var bar = 1;
-
-test() {
-  while (true) {
-    if (0 == foo) {
-      sum += 2;
-      if (1 == bar) {
-        sum += 3;
-        break;
-      }
-      break;
-    }
-  }
-}
-
-main() {
-  test();
-  Expect.equals(5, sum);
-}
diff --git a/tests/language_2/optimize/lists_test.dart b/tests/language_2/optimize/lists_test.dart
deleted file mode 100644
index 8c5fc38df46..00000000000
--- a/tests/language_2/optimize/lists_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test program for correct optimizations related to types fo allocated lists.
-// VMOptions=--optimization-counter-threshold=10
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  // Trigger optimization of 'test' method.
-  for (int i = 0; i < 20; i++) {
-    test(2);
-  }
-}
-
-test(n) {
-  var a = []; //    Growable list.
-  var b = new List<dynamic>.filled(10, null); // Fixed size list.
-  var c = const [1, 2, 3, 4]; // Constant aray.
-  // In optimized mode the class checks will be eliminated since the
-  // constructors above provide information about exact types.
-  a.add(4);
-  b[0] = 5;
-  Expect.equals(4, a[0]);
-  Expect.equals(5, b[0]);
-  // Test bound check elimination.
-  Expect.equals(2, c[1]);
-  // Test elimination of array length computation.
-  var v = c[n];
-  Expect.equals(v, c[n]);
-}
diff --git a/tests/language_2/optimize/osr_test.dart b/tests/language_2/optimize/osr_test.dart
deleted file mode 100644
index a88b88960a2..00000000000
--- a/tests/language_2/optimize/osr_test.dart
+++ /dev/null
@@ -1,97 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=20 --no-background-compilation
-// Test correct OSR (issue 16151).
-
-// @dart = 2.9
-
-import "dart:collection";
-import "package:expect/expect.dart";
-
-List create([int length]) {
-  return new MyList(length);
-}
-
-main() {
-  test(create);
-}
-
-class MyList<E> extends ListBase<E> {
-  List<E> _list;
-
-  MyList([int length])
-      : _list = (length == null ? [] : new List<dynamic>.filled(length, null));
-
-  E operator [](int index) => _list[index];
-
-  void operator []=(int index, E value) {
-    _list[index] = value;
-  }
-
-  int get length => _list.length;
-
-  void set length(int newLength) {
-    _list.length = newLength;
-  }
-}
-
-test(List create([int length])) {
-  sort_A01_t02_test(create);
-}
-
-//  From library co19 sort_A01_t02.
-
-sort_A01_t02_test(List create([int length])) {
-  int c(var a, var b) {
-    return a < b ? -1 : (a == b ? 0 : 1);
-  }
-
-  int maxlen = 7;
-  int prevLength = 0;
-  for (int length = 1; length < maxlen; ++length) {
-    // Check that we are making progress.
-    if (prevLength == length) {
-      // Cannot use Expect.notEquals since it hides the bug.
-      throw "No progress made";
-    }
-    prevLength = length;
-    List a = create(length);
-    List expected = create(length);
-    for (int i = 0; i < length; ++i) {
-      expected[i] = i;
-      a[i] = i;
-    }
-
-    void swap(int i, int j) {
-      var t = a[i];
-      a[i] = a[j];
-      a[j] = t;
-    }
-
-    void check() {
-      return;
-      // Deleting the code below will throw a RangeError instead of throw above.
-      var a_copy = new List<dynamic>.filled(length, null);
-      a_copy.setRange(0, length, a);
-      a_copy.sort(c);
-    }
-
-    void permute(int n) {
-      if (n == 1) {
-        check();
-      } else {
-        for (int i = 0; i < n; i++) {
-          permute(n - 1);
-          if (n % 2 == 1) {
-            swap(0, n - 1);
-          } else {
-            swap(i, n - 1);
-          }
-        }
-      }
-    } //void permute
-
-    permute(length);
-  } //for i in 0..length
-} // test
diff --git a/tests/language_2/optimize/phi_merge_test.dart b/tests/language_2/optimize/phi_merge_test.dart
deleted file mode 100644
index 4f0ac2635a3..00000000000
--- a/tests/language_2/optimize/phi_merge_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to crash on this code.
-
-class A {
-  operator []=(index, value) {
-    switch (value) {
-      case 42:
-        break;
-      case 43:
-        break;
-    }
-  }
-}
-
-main() {
-  // Make [a] a phi.
-  var a;
-  if (true) {
-    a = new A();
-  } else {
-    a = new A();
-  }
-  // `A[]=` being inlined, the compiler was confused when merging the
-  // phis after the switch.
-  a[0] = 42;
-
-  // Use [a] to provoke the crash.
-  print(a);
-}
diff --git a/tests/language_2/optimize/pure_function2_test.dart b/tests/language_2/optimize/pure_function2_test.dart
deleted file mode 100644
index fb593cf56d3..00000000000
--- a/tests/language_2/optimize/pure_function2_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Regression test for issue 17483.
-
-confuse(x) {
-  if (new DateTime.now().millisecondsSinceEpoch == 42) return confuse(x);
-  return x;
-}
-
-foo(trace) {
-  trace.add("foo");
-  return "foo";
-}
-
-bar(trace) {
-  trace.add("bar");
-  return "bar";
-}
-
-main() {
-  var f = confuse(foo);
-  var b = confuse(bar);
-
-  var trace = [];
-  // Dart2js must keep the order of t1 and t2.
-  var t1 = f(trace);
-  var t2 = b(trace);
-  var t3 = identical(t2, "foo");
-  trace.add(t1);
-  trace.add(t3);
-  trace.add(t3);
-  Expect.listEquals(["foo", "bar", "foo", false, false], trace);
-}
diff --git a/tests/language_2/optimize/pure_function_test.dart b/tests/language_2/optimize/pure_function_test.dart
deleted file mode 100644
index 9d555d2b47b..00000000000
--- a/tests/language_2/optimize/pure_function_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Regression test for issue 17483.
-
-class A {
-  var x, y;
-  A(x, this.y) {
-    this.x = x;
-  }
-  toString() => "a";
-}
-
-foo(trace) => trace.add("foo");
-bar(trace) => trace.add("bar");
-
-main() {
-  var trace = [];
-  // Dart2js must keep the order of t1 and t2.
-  var t1 = foo(trace);
-  var t2 = bar(trace);
-  // Dart2js inlines the constructor, yielding something like:
-  //   t3 = jsNew A(null, t2);  // Note that jsNew is pure.
-  //   t3.x = t1;
-  // t3 is used twice and cannot be generated at use site.
-  // Dart2js must not allow t1 to cross the t3-line.
-  var a = new A(t1, t2);
-  // Use a. It is already implicitly used by the this.x = x line in its
-  // constructor. With the following use we use it twice and make sure that
-  // the allocation can not be generated at use-site.
-  trace.add(a.toString());
-  Expect.listEquals(["foo", "bar", "a"], trace);
-}
diff --git a/tests/language_2/optimize/redundant_array_load_test.dart b/tests/language_2/optimize/redundant_array_load_test.dart
deleted file mode 100644
index eb89df61d16..00000000000
--- a/tests/language_2/optimize/redundant_array_load_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test optimization of redundant array loads.
-
-var A = [0, 2, 3];
-
-test1(a) {
-  int x = a[0];
-  int y = a[1];
-  ++a[0];
-  return a[0] + y + a[2];
-}
-
-int test2(a) {
-  return a[2] + a[2];
-}
-
-main() {
-  for (int i = 0; i < 20; i++) {
-    test1(A);
-    test2(A);
-  }
-  Expect.equals(26, test1(A));
-  Expect.equals(6, test2(A));
-}
diff --git a/tests/language_2/optimize/setter_test.dart b/tests/language_2/optimize/setter_test.dart
deleted file mode 100644
index 682dab8d143..00000000000
--- a/tests/language_2/optimize/setter_test.dart
+++ /dev/null
@@ -1,157 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test various setter situations, testing special cases in optimizing compiler.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  int field = 0;
-}
-
-class B extends A {}
-
-void sameImplicitSetter() {
-  oneTarget(var a, var v) {
-    a.field = v;
-  }
-
-  A a = new A();
-  B b = new B();
-  // Optimize 'oneTarget' for one class, one target.
-  for (int i = 0; i < 20; i++) {
-    oneTarget(a, 5);
-    Expect.equals(5, a.field);
-  }
-  // Deoptimize 'oneTarget', since class B is not expected.
-  oneTarget(b, 6);
-  Expect.equals(6, b.field);
-  // Optimize 'oneTarget' for A and B classes, one target.
-  for (int i = 0; i < 20; i++) {
-    oneTarget(a, 7);
-    Expect.equals(7, a.field);
-  }
-  oneTarget(b, 8);
-  Expect.equals(8, b.field);
-}
-
-// Deoptimize when no feedback exists.
-void setterNoFeedback() {
-  maybeSet(var a, var v, bool set_it) {
-    if (set_it) {
-      return a.field = v;
-    }
-    return -1;
-  }
-
-  A a = new A();
-  for (int i = 0; i < 20; i++) {
-    var r = maybeSet(a, 5, false);
-    Expect.equals(0, a.field);
-    Expect.equals(-1, r);
-  }
-  var r = maybeSet(a, 5, true);
-  Expect.equals(5, a.field);
-  Expect.equals(5, r);
-  for (int i = 0; i < 20; i++) {
-    var r = maybeSet(a, 6, true);
-    Expect.equals(6, a.field);
-    Expect.equals(6, r);
-  }
-}
-
-// Check non-implicit setter
-class X {
-  int pField = 0;
-  set field(v) {
-    pField = v;
-  }
-
-  get field => 10;
-}
-
-void sameNotImplicitSetter() {
-  oneTarget(var a, var v) {
-    return a.field = v;
-  }
-
-  incField(var a) {
-    a.field++;
-  }
-
-  X x = new X();
-  for (int i = 0; i < 20; i++) {
-    var r = oneTarget(x, 3);
-    Expect.equals(3, x.pField);
-    Expect.equals(3, r);
-  }
-  oneTarget(x, 0);
-  for (int i = 0; i < 20; i++) {
-    incField(x);
-  }
-  Expect.equals(11, x.pField);
-}
-
-class Y {
-  int field = 0;
-}
-
-multiImplicitSetter() {
-  oneTarget(var a, var v) {
-    return a.field = v;
-  }
-
-  // Both classes 'Y' and 'A' have a distinct field getter.
-  A a = new A();
-  Y y = new Y();
-  for (int i = 0; i < 20; i++) {
-    var r = oneTarget(a, 5);
-    Expect.equals(5, a.field);
-    Expect.equals(5, r);
-    r = oneTarget(y, 6);
-    Expect.equals(6, y.field);
-    Expect.equals(6, r);
-  }
-}
-
-class Z {
-  int pField = 0;
-  set field(v) {
-    pField = v;
-  }
-
-  get field => 10;
-}
-
-multiNotImplicitSetter() {
-  oneTarget(var a, var v) {
-    return a.field = v;
-  }
-
-  Y y = new Y();
-  Z z = new Z();
-  for (int i = 0; i < 20; i++) {
-    var r = oneTarget(y, 8);
-    Expect.equals(8, y.field);
-    Expect.equals(8, r);
-    r = oneTarget(z, 12);
-    Expect.equals(12, z.pField);
-    Expect.equals(12, r);
-  }
-  A a = new A();
-  var r = oneTarget(a, 11);
-  Expect.equals(11, a.field);
-  Expect.equals(11, r);
-}
-
-void main() {
-  sameImplicitSetter();
-  setterNoFeedback();
-  sameNotImplicitSetter();
-
-  multiImplicitSetter();
-  multiNotImplicitSetter();
-}
diff --git a/tests/language_2/optimize/string_charat_test.dart b/tests/language_2/optimize/string_charat_test.dart
deleted file mode 100644
index fd26f796292..00000000000
--- a/tests/language_2/optimize/string_charat_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test optimized [] on strings.
-
-var a = "abc";
-var b = "øbc";
-var c = new String.fromCharCodes([123, 456, 789]);
-
-test_charat(s, i) {
-  return s[i];
-}
-
-test_const_str(i) {
-  return "abc"[i];
-}
-
-test_const_index(s) {
-  return s[0];
-}
-
-test_const_index2(s) {
-  return s[3];
-}
-
-main() {
-  Expect.equals("a", test_charat(a, 0));
-  for (var i = 0; i < 20; i++) test_charat(a, 0);
-  Expect.equals("a", test_charat(a, 0));
-  Expect.equals("b", test_charat(a, 1));
-  Expect.equals("c", test_charat(a, 2));
-  Expect.throws(() => test_charat(a, 3));
-
-  Expect.equals("a", test_const_str(0));
-  for (var i = 0; i < 20; i++) test_const_str(0);
-  Expect.equals("a", test_const_str(0));
-  Expect.equals("b", test_const_str(1));
-  Expect.equals("c", test_const_str(2));
-  Expect.throws(() => test_const_str(3));
-
-  Expect.equals("a", test_const_index(a));
-  for (var i = 0; i < 20; i++) test_const_index(a);
-  Expect.equals("a", test_const_index(a));
-  Expect.equals("ø", test_const_index(b));
-  Expect.equals(new String.fromCharCodes([123]), test_const_index(c));
-  Expect.throws(() => test_const_index2(a));
-
-  Expect.equals("ø", test_charat(b, 0));
-  for (var i = 0; i < 20; i++) test_charat(b, 0);
-  Expect.equals("ø", test_charat(b, 0));
-  Expect.equals("b", test_charat(b, 1));
-  Expect.equals("c", test_charat(b, 2));
-  Expect.throws(() => test_charat(b, 3));
-
-  Expect.equals(new String.fromCharCodes([123]), test_charat(c, 0));
-  for (var i = 0; i < 20; i++) test_charat(c, 0);
-  Expect.equals(new String.fromCharCodes([123]), test_charat(c, 0));
-  Expect.equals(new String.fromCharCodes([456]), test_charat(c, 1));
-  Expect.equals(new String.fromCharCodes([789]), test_charat(c, 2));
-  Expect.throws(() => test_charat(c, 3));
-}
diff --git a/tests/language_2/optimize/string_charcodeat_test.dart b/tests/language_2/optimize/string_charcodeat_test.dart
deleted file mode 100644
index e4205a8cb1c..00000000000
--- a/tests/language_2/optimize/string_charcodeat_test.dart
+++ /dev/null
@@ -1,80 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-// Test optimized CodeUnitAt and array access.
-
-import "package:expect/expect.dart";
-
-String one_byte = "hest";
-String two_byte = "h\u{2029}ns";
-
-int testOneByteCodeUnitAt(String x, int j) {
-  int test() {
-    return x.codeUnitAt(j);
-  }
-
-  for (int i = 0; i < 20; i++) test();
-  return test();
-}
-
-int testTwoByteCodeUnitAt(String x, int j) {
-  int test() {
-    return x.codeUnitAt(j);
-  }
-
-  for (int i = 0; i < 20; i++) test();
-  return test();
-}
-
-int testConstantStringCodeUnitAt(int j) {
-  int test() {
-    return "høns".codeUnitAt(j);
-  }
-
-  for (int i = 0; i < 20; i++) test();
-  return test();
-}
-
-int testConstantIndexCodeUnitAt(String x) {
-  int test() {
-    return x.codeUnitAt(1);
-  }
-
-  for (int i = 0; i < 20; i++) test();
-  return test();
-}
-
-int testOneByteCodeUnitAtInLoop(var x) {
-  var result = 0;
-  for (int i = 0; i < x.length; i++) {
-    result += x.codeUnitAt(i);
-  }
-  return result;
-}
-
-int testTwoByteCodeUnitAtInLoop(var x) {
-  var result = 0;
-  for (int i = 0; i < x.length; i++) {
-    result += x.codeUnitAt(i);
-  }
-  return result;
-}
-
-main() {
-  for (int j = 0; j < 10; j++) {
-    Expect.equals(101, testOneByteCodeUnitAt(one_byte, 1));
-    Expect.equals(8233, testTwoByteCodeUnitAt(two_byte, 1));
-    Expect.equals(248, testConstantStringCodeUnitAt(1));
-    Expect.equals(101, testConstantIndexCodeUnitAt(one_byte));
-  }
-  for (int j = 0; j < 20; j++) {
-    Expect.equals(436, testOneByteCodeUnitAtInLoop(one_byte));
-    Expect.equals(8562, testTwoByteCodeUnitAtInLoop(two_byte));
-  }
-  Expect.throws(() => testOneByteCodeUnitAtInLoop(123));
-  Expect.throws(() => testTwoByteCodeUnitAtInLoop(123));
-}
diff --git a/tests/language_2/override/const_field_test.dart b/tests/language_2/override/const_field_test.dart
deleted file mode 100644
index f988ee0283c..00000000000
--- a/tests/language_2/override/const_field_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test checking that static/instance field shadowing do not conflict.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class A {
-  final field;
-  const A(this.field);
-}
-
-class B extends A {
-  final field;
-  const B(this.field, fieldA) : super(fieldA);
-  get fieldA => super.field;
-}
-
-main() {
-  const b = B(1, 2);
-  Expect.equals(1, b.field);
-  Expect.equals(2, b.fieldA);
-}
diff --git a/tests/language_2/override/field_method1_test.dart b/tests/language_2/override/field_method1_test.dart
deleted file mode 100644
index bb0cd319bd2..00000000000
--- a/tests/language_2/override/field_method1_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Overriding field with method.
-
-class A {
-  var foo;
-}
-
-class B extends A {
-  foo() {}
-//^^^
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_METHOD_AND_FIELD
-// [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-main() {
-  B().foo();
-}
diff --git a/tests/language_2/override/field_method2_test.dart b/tests/language_2/override/field_method2_test.dart
deleted file mode 100644
index 6a51724fd0f..00000000000
--- a/tests/language_2/override/field_method2_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Overriding getter with method.
-
-class A {
-  get foo => 123;
-}
-
-class B extends A {
-  foo() {}
-//^^^
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_METHOD_AND_FIELD
-// [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-main() {
-  B().foo();
-}
diff --git a/tests/language_2/override/field_method3_test.dart b/tests/language_2/override/field_method3_test.dart
deleted file mode 100644
index 9c9a5dca0f6..00000000000
--- a/tests/language_2/override/field_method3_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Overriding method with field.
-
-class A {
-  foo() {}
-}
-
-class B extends A {
-  var foo;
-  //  ^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_FIELD_AND_METHOD
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-main() {
-  B().foo;
-}
diff --git a/tests/language_2/override/field_method4_test.dart b/tests/language_2/override/field_method4_test.dart
deleted file mode 100644
index 57510ff0cd5..00000000000
--- a/tests/language_2/override/field_method4_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Overriding method with getter.
-
-class A {
-  foo() => 999;
-}
-
-class B extends A {
-  get foo => 123;
-  //  ^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_FIELD_AND_METHOD
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-main() {
-  B().foo;
-}
diff --git a/tests/language_2/override/field_test.dart b/tests/language_2/override/field_test.dart
deleted file mode 100644
index c1657a217ad..00000000000
--- a/tests/language_2/override/field_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test checking that static/instance field shadowing do not conflict.
-
-// @dart = 2.9
-
-class A {
-  int instanceFieldInA;
-  static int staticFieldInA;
-}
-
-class B extends A {
-  static int instanceFieldInA; //  //# 01: compile-time error
-  int staticFieldInA; //           //# 02: ok
-  static int staticFieldInA; //    //# 03: ok
-}
-
-main() {
-  var x = new B();
-}
diff --git a/tests/language_2/override/inheritance_abstract_runtime_1_test.dart b/tests/language_2/override/inheritance_abstract_runtime_1_test.dart
deleted file mode 100644
index 7fc7af01326..00000000000
--- a/tests/language_2/override/inheritance_abstract_runtime_1_test.dart
+++ /dev/null
@@ -1,71 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-abstract class A {
-  method1();
-
-
-
-
-
-
-
-
-
-
-
-
-}
-
-abstract class I {
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-}
-
-abstract class J {
-
-
-
-}
-
-class Class extends A implements I, J {
-  method1() {}
-
-
-
-
-
-
-
-
-
-
-
-
-
-}
-
-main() {
-  new Class();
-}
diff --git a/tests/language_2/override/inheritance_abstract_runtime_2_test.dart b/tests/language_2/override/inheritance_abstract_runtime_2_test.dart
deleted file mode 100644
index 4bada81ecb9..00000000000
--- a/tests/language_2/override/inheritance_abstract_runtime_2_test.dart
+++ /dev/null
@@ -1,71 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-abstract class A {
-
-  method5();
-
-
-
-
-
-
-
-
-
-
-
-}
-
-abstract class I {
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-}
-
-abstract class J {
-
-
-
-}
-
-class Class extends A implements I, J {
-
-
-
-
-  method5() {}
-
-
-
-
-
-
-
-
-
-}
-
-main() {
-  new Class();
-}
diff --git a/tests/language_2/override/inheritance_abstract_runtime_3_test.dart b/tests/language_2/override/inheritance_abstract_runtime_3_test.dart
deleted file mode 100644
index becf2221229..00000000000
--- a/tests/language_2/override/inheritance_abstract_runtime_3_test.dart
+++ /dev/null
@@ -1,71 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-abstract class A {
-
-
-  method6();
-
-
-
-
-
-
-
-
-
-
-}
-
-abstract class I {
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-}
-
-abstract class J {
-
-
-
-}
-
-class Class extends A implements I, J {
-
-
-
-
-
-  method6([a]) {}
-
-
-
-
-
-
-
-
-}
-
-main() {
-  new Class();
-}
diff --git a/tests/language_2/override/inheritance_abstract_runtime_4_test.dart b/tests/language_2/override/inheritance_abstract_runtime_4_test.dart
deleted file mode 100644
index 9a05e06d1df..00000000000
--- a/tests/language_2/override/inheritance_abstract_runtime_4_test.dart
+++ /dev/null
@@ -1,71 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-abstract class A {
-
-
-
-
-
-
-
-
-
-
-
-  method18() {}
-
-}
-
-abstract class I {
-
-
-
-
-
-
-
-
-  method18() {}
-
-
-
-
-
-
-
-
-}
-
-abstract class J {
-
-
-
-}
-
-class Class extends A implements I, J {
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-}
-
-main() {
-  new Class();
-}
diff --git a/tests/language_2/override/inheritance_abstract_runtime_5_test.dart b/tests/language_2/override/inheritance_abstract_runtime_5_test.dart
deleted file mode 100644
index 42fd0ae2c3b..00000000000
--- a/tests/language_2/override/inheritance_abstract_runtime_5_test.dart
+++ /dev/null
@@ -1,71 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-abstract class A {
-
-
-
-
-
-
-
-
-
-
-
-
-  method27() {}
-}
-
-abstract class I {
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-}
-
-abstract class J {
-
-
-
-}
-
-class Class extends A implements I, J {
-
-
-
-
-
-
-
-
-
-
-
-
-
-  method27();
-}
-
-main() {
-  new Class();
-}
diff --git a/tests/language_2/override/inheritance_abstract_runtime_6_test.dart b/tests/language_2/override/inheritance_abstract_runtime_6_test.dart
deleted file mode 100644
index 644ab0daf90..00000000000
--- a/tests/language_2/override/inheritance_abstract_runtime_6_test.dart
+++ /dev/null
@@ -1,71 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-abstract class A {
-
-
-
-
-
-
-
-
-
-
-
-
-
-}
-
-abstract class I {
-
-
-
-
-
-  method15() {}
-
-
-
-
-
-
-
-
-
-
-
-}
-
-abstract class J {
-
-
-
-}
-
-class Class extends A implements I, J {
-
-
-
-
-
-
-
-
-  method15() {}
-
-
-
-
-
-}
-
-main() {
-  new Class();
-}
diff --git a/tests/language_2/override/inheritance_abstract_runtime_7_test.dart b/tests/language_2/override/inheritance_abstract_runtime_7_test.dart
deleted file mode 100644
index 878d9b007f9..00000000000
--- a/tests/language_2/override/inheritance_abstract_runtime_7_test.dart
+++ /dev/null
@@ -1,71 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-abstract class A {
-
-
-
-
-
-
-
-
-
-
-
-
-
-}
-
-abstract class I {
-
-
-
-
-
-
-  method16() {}
-
-
-
-
-
-
-
-
-
-
-}
-
-abstract class J {
-
-
-
-}
-
-class Class extends A implements I, J {
-
-
-
-
-
-
-
-
-
-  method16([a]) {}
-
-
-
-
-}
-
-main() {
-  new Class();
-}
diff --git a/tests/language_2/override/inheritance_abstract_runtime_test.dart b/tests/language_2/override/inheritance_abstract_runtime_test.dart
deleted file mode 100644
index a1113886a68..00000000000
--- a/tests/language_2/override/inheritance_abstract_runtime_test.dart
+++ /dev/null
@@ -1,71 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-abstract class A {
-
-
-
-
-
-
-
-
-
-
-
-
-
-}
-
-abstract class I {
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-}
-
-abstract class J {
-
-
-
-}
-
-class Class extends A implements I, J {
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-}
-
-main() {
-  new Class();
-}
diff --git a/tests/language_2/override/inheritance_abstract_test.dart b/tests/language_2/override/inheritance_abstract_test.dart
deleted file mode 100644
index 858cb0ab8a3..00000000000
--- a/tests/language_2/override/inheritance_abstract_test.dart
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-abstract class A {
-  method1();
-  method5();
-  method6();
-  method7();
-  get getter8;
-  set setter9(_);
-  method10();
-  get getter11;
-  set setter12(_);
-  get field13;
-  set field14(_);
-  method18() {}
-  method27() {}
-}
-
-abstract class I {
-  method10() {}
-  get getter11 => 0;
-  set setter12(_) {}
-  var field13;
-  var field14;
-  method15() {}
-  method16() {}
-  method17() {}
-  method18() {}
-  var member19;
-  var member20;
-  var member21;
-  get member22 => 0;
-  set member23(_) {}
-  var member24;
-  var field25;
-  var member26;
-}
-
-abstract class J {
-  get member20 => null;
-  set member20(_) {}
-  var member21;
-}
-
-class Class extends A implements I, J {
-//    ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER
-// [cfe] The non-abstract class 'Class' is missing implementations for these members:
-  method1() {}
-  method2();
-//^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONCRETE_CLASS_WITH_ABSTRACT_MEMBER
-  get getter3;
-//^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONCRETE_CLASS_WITH_ABSTRACT_MEMBER
-  set setter4(_);
-//^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONCRETE_CLASS_WITH_ABSTRACT_MEMBER
-  method5() {}
-  method6([a]) {}
-  set field13(_) {}
-  get field14 => 0;
-  method15() {}
-  method16([a]) {}
-  get member24 => 0;
-  final field25 = 0;
-  set member26(_) {}
-  method27();
-}
-
-main() {
-  new Class();
-}
diff --git a/tests/language_2/override/inheritance_field_test.dart b/tests/language_2/override/inheritance_field_test.dart
deleted file mode 100644
index 456a54726f1..00000000000
--- a/tests/language_2/override/inheritance_field_test.dart
+++ /dev/null
@@ -1,127 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  get getter1 => null; //# 01: ok
-  num get getter2 => null; //# 02: ok
-  num get getter3 => null; //# 03: ok
-  int get getter4 => null; //# 04: compile-time error
-  int get getter5 => null; //# 05: compile-time error
-  int get getter6 => null; //# 06: compile-time error
-  int get getter7 => null; //# 07: compile-time error
-  int get getter8 => null; //# 08: compile-time error
-
-  set setter1(_) => null; //# 21: ok
-  void set setter2(_) {} //# 22: ok
-  set setter3(_) => null; //# 23: ok
-  set setter4(_) => null; //# 24: ok
-  set setter5(num _) => null; //# 25: ok
-  set setter6(num _) => null; //# 26: compile-time error
-  set setter7(int _) => null; //# 27: ok
-  set setter8(int _) => null; //# 28: compile-time error
-  set setter9(int _) => null; //# 29: compile-time error
-  set setter10(int _) => null; //# 30: compile-time error
-  set setter11(int _) => null; //# 31: compile-time error
-
-  int field1; //# 41: ok
-  num field2; //# 42: compile-time error
-  int field3; //# 43: compile-time error
-  int field4; //# 44: compile-time error
-  int field5; //# 45: compile-time error
-  num field6; //# 46: ok
-  num field7; //# 47: compile-time error
-  num get field8 => null; //# 48: compile-time error
-  num field9; //# 49: compile-time error
-  num field10; //# 50: compile-time error
-  set field11(int _) {} //# 51: ok
-  void set field12(int _) {} //# 52: ok
-  num field13; //# 53: compile-time error
-  set field14(num _) {} //# 54: compile-time error
-  num field15; //# 55: ok
-}
-
-class B extends A {
-  num get getter6 => null; //# 06: continued
-  set setter9(num _) => null; //# 29: continued
-  num field5; //# 45: continued
-}
-
-abstract class I {
-  num get getter7 => null; //# 07: continued
-  String get getter8 => null; //# 08: continued
-  int get getter9 => null; //# 09: compile-time error
-  int get getter10 => null; //# 10: compile-time error
-  int get getter11 => null; //# 11: compile-time error
-  set setter10(num _) => null; //# 30: continued
-  set setter11(String _) => null; //# 31: continued
-  set setter12(int _) => null; //# 32: compile-time error
-  set setter13(int _) => null; //# 33: compile-time error
-  set setter13(num _) => null; //# 33a: compile-time error
-  set setter14(int _) => null; //# 34: compile-time error
-}
-
-abstract class J {
-  String get getter9 => null; //# 09: continued
-  num get getter10 => null; //# 10: continued
-  num get getter11 => null; //# 11: continued
-  set setter12(String _) => null; //# 32: continued
-  set setter13(num _) => null; //# 33: continued
-  set setter13(int _) => null; //# 33a: continued
-  set setter14(num _) => null; //# 34: continued
-}
-
-abstract class Class extends B implements I, J {
-  get getter1 => null; //# 01: continued
-  num get getter2 => null; //# 02: continued
-  int get getter3 => null; //# 03: continued
-  num get getter4 => null; //# 04: continued
-  double get getter5 => null; //# 05: continued
-  double get getter6 => null; //# 06: continued
-  double get getter7 => null; //# 07: continued
-  double get getter8 => null; //# 08: continued
-  double get getter9 => null; //# 09: continued
-
-  set setter1(_) => null; //# 21: continued
-  set setter2(_) => null; //# 22: continued
-  void set setter3(_) {} //# 23: continued
-  void set setter4(_) {} //# 24: continued
-  set setter5(num _) => null; //# 25: continued
-  set setter6(int _) => null; //# 26: continued
-  set setter7(num _) => null; //# 27: continued
-  set setter8(double _) => null; //# 28: continued
-  set setter9(double _) => null; //# 29: continued
-  set setter10(double _) => null; //# 30: continued
-  set setter11(double _) => null; //# 31: continued
-  set setter12(double _) => null; //# 32: continued
-
-  int field1; //# 41: continued
-  int field2; //# 42: continued
-  num field3; //# 43: continued
-  double field4; //# 44: continued
-  double field5; //# 45: continued
-  int get field6 => null; //# 46: continued
-  String get field7 => null; //# 47: continued
-  String field8; //# 48: continued
-  set field9(int _) {} //# 49: continued
-  void set field10(int _) {} //# 50: continued
-  num field11; //# 51: continued
-  num field12; //# 52: continued
-  set field13(String _) {} //# 53: continued
-  String field14; //# 54: continued
-  set field15(covariant int _) {} //# 55: continued
-}
-
-class SubClass extends Class {
-  double get getter10 => null; //# 10: continued
-  String get getter11 => null; //# 11: continued
-  set setter13(double _) => null; //# 33: continued
-  set setter13(double _) => null; //# 33a: continued
-  set setter14(String _) => null; //# 34: continued
-}
-
-main() {
-  new SubClass();
-}
diff --git a/tests/language_2/override/inheritance_generic_test.dart b/tests/language_2/override/inheritance_generic_test.dart
deleted file mode 100644
index 43d6e9d4947..00000000000
--- a/tests/language_2/override/inheritance_generic_test.dart
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A<T> {
-  void method1(T t) => null; //# 01: ok
-  void method2(T t) => null; //# 02: compile-time error
-  void method4(T t) => null; //# 04: compile-time error
-  void method5(T t) => null; //# 05: ok
-  void method7(T t) => null; //# 07: compile-time error
-}
-
-class B<S> extends A
-<S> //# 01: continued
-<num> //# 02: continued
-<S> //# 04: continued
-<S> //# 05: continued
-{
-  void method1(S s) => null; //# 01: continued
-  void method2(int i) => null; //# 02: continued
-  void method3(S s) => null; //# 03: ok
-  void method4(int i) => null; //# 04: continued
-  void method6(S s) => null; //# 06: compile-time error
-}
-
-abstract class I<U> {
-  void method3(U u) => null; //# 03: continued
-  void method6(U u) => null; //# 06: continued
-  void method7(U u) => null; //# 07: continued
-  void method8(U u) => null; //# 08: compile-time error
-  void method9(U u) => null; //# 09: compile-time error
-  void method10(U u) => null; //# 10: compile-time error
-}
-
-abstract class J<V> {
-  void method8(V v) => null; //# 08: continued
-  void method9(V v) => null; //# 09: continued
-  void method10(V v) => null; //# 10: continued
-}
-
-abstract class Class<W> extends B
-<double> //# 03: continued
-<W> //# 05: continued
-<W> //# 06: continued
-<int> //# 07: continued
-    implements
-        I
-<int> //# 03: continued
-<num> //# 06: continued
-<String> //# 07: continued
-<int> //# 08: continued
-<int> //# 09: continued
-<int> //# 10: continued
-        ,
-        J
-<String> //# 08: continued
-<num> //# 09: continued
-<num> //# 10: continued
-{
-  void method3(num i) => null; //# 03: continued
-  void method5(W w) => null; //# 05: continued
-  void method6(int i) => null; //# 06: continued
-  void method7(double d) => null; //# 07: continued
-  void method8(double d) => null; //# 08: continued
-}
-
-class SubClass extends Class {
-  void method9(double d) => null; //# 09: continued
-  void method10(String s) => null; //# 10: continued
-}
-
-main() {
-  new SubClass();
-}
diff --git a/tests/language_2/override/inheritance_method2_test.dart b/tests/language_2/override/inheritance_method2_test.dart
deleted file mode 100644
index 1dfad11e31f..00000000000
--- a/tests/language_2/override/inheritance_method2_test.dart
+++ /dev/null
@@ -1,1114 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  new C();
-}
-
-class A {
-  method1(covariant dynamic a) => null; //# 001: ok
-  method2(covariant dynamic a) => null; //# 002: ok
-  method3(covariant dynamic a) => null; //# 003: ok
-  method4(covariant dynamic a) => null; //# 004: ok
-  method5(covariant dynamic a) => null; //# 005: ok
-  method6(covariant dynamic a) => null; //# 006: ok
-  method7(covariant dynamic a) => null; //# 007: ok
-  method8(covariant dynamic a) => null; //# 008: ok
-  method9(covariant dynamic a) => null; //# 009: ok
-  method10(covariant dynamic a) => null; //# 010: ok
-  method11(covariant dynamic a) => null; //# 011: ok
-  method12(covariant dynamic a) => null; //# 012: compile-time error
-  method13(covariant dynamic a) => null; //# 013: ok
-  method14(covariant dynamic a) => null; //# 014: ok
-  method15(covariant dynamic a) => null; //# 015: ok
-  method16(covariant dynamic a) => null; //# 016: compile-time error
-  method17(covariant dynamic a) => null; //# 017: ok
-  method18(covariant dynamic a) => null; //# 018: ok
-  method19(covariant dynamic a) => null; //# 019: ok
-  method20(covariant dynamic a) => null; //# 020: compile-time error
-  method21(covariant dynamic a) => null; //# 021: ok
-  method22(covariant dynamic a) => null; //# 022: ok
-  method23(covariant dynamic a) => null; //# 023: ok
-  method24(covariant dynamic a) => null; //# 024: compile-time error
-  method25(covariant dynamic a) => null; //# 025: ok
-  method26(covariant dynamic a) => null; //# 026: compile-time error
-  method27(covariant dynamic a) => null; //# 027: compile-time error
-  method28(covariant dynamic a) => null; //# 028: ok
-  method29(covariant dynamic a) => null; //# 029: ok
-  method30(covariant dynamic a) => null; //# 030: compile-time error
-  method31(covariant dynamic a) => null; //# 031: compile-time error
-  method32(covariant dynamic a) => null; //# 032: ok
-  method33(covariant dynamic a) => null; //# 033: ok
-  method34(covariant dynamic a) => null; //# 034: ok
-  method35(covariant dynamic a) => null; //# 035: ok
-  method36(covariant dynamic a) => null; //# 036: ok
-  method37(covariant dynamic a) => null; //# 037: ok
-  method38(covariant dynamic a) => null; //# 038: ok
-  method39(covariant dynamic a) => null; //# 039: ok
-  method40(covariant dynamic a) => null; //# 040: ok
-  method41(covariant dynamic a) => null; //# 041: ok
-  method42(covariant dynamic a) => null; //# 042: ok
-  method43(covariant dynamic a) => null; //# 043: ok
-  method44(covariant dynamic a) => null; //# 044: compile-time error
-  method45(covariant dynamic a) => null; //# 045: ok
-  method46(covariant dynamic a) => null; //# 046: ok
-  method47(covariant dynamic a) => null; //# 047: ok
-  method48(covariant dynamic a) => null; //# 048: compile-time error
-  method49(covariant dynamic a) => null; //# 049: ok
-  method50(covariant dynamic a) => null; //# 050: ok
-  method51(covariant dynamic a) => null; //# 051: ok
-  method52(covariant dynamic a) => null; //# 052: compile-time error
-  method53(covariant dynamic a) => null; //# 053: ok
-  method54(covariant dynamic a) => null; //# 054: ok
-  method55(covariant dynamic a) => null; //# 055: ok
-  method56(covariant dynamic a) => null; //# 056: compile-time error
-  method57(covariant dynamic a) => null; //# 057: ok
-  method58(covariant dynamic a) => null; //# 058: compile-time error
-  method59(covariant dynamic a) => null; //# 059: compile-time error
-  method60(covariant dynamic a) => null; //# 060: ok
-  method61(covariant dynamic a) => null; //# 061: ok
-  method62(covariant dynamic a) => null; //# 062: compile-time error
-  method63(covariant dynamic a) => null; //# 063: compile-time error
-  method64(covariant dynamic a) => null; //# 064: ok
-  method65(covariant num a) => null; //# 065: ok
-  method66(covariant num a) => null; //# 066: ok
-  method67(covariant num a) => null; //# 067: ok
-  method68(covariant num a) => null; //# 068: compile-time error
-  method69(covariant num a) => null; //# 069: ok
-  method70(covariant num a) => null; //# 070: ok
-  method71(covariant num a) => null; //# 071: ok
-  method72(covariant num a) => null; //# 072: compile-time error
-  method73(covariant num a) => null; //# 073: ok
-  method74(covariant num a) => null; //# 074: ok
-  method75(covariant num a) => null; //# 075: ok
-  method76(covariant num a) => null; //# 076: compile-time error
-  method77(covariant num a) => null; //# 077: ok
-  method78(covariant num a) => null; //# 078: ok
-  method79(covariant num a) => null; //# 079: ok
-  method80(covariant num a) => null; //# 080: compile-time error
-  method81(covariant num a) => null; //# 081: ok
-  method82(covariant num a) => null; //# 082: ok
-  method83(covariant num a) => null; //# 083: ok
-  method84(covariant num a) => null; //# 084: compile-time error
-  method85(covariant num a) => null; //# 085: ok
-  method86(covariant num a) => null; //# 086: ok
-  method87(covariant num a) => null; //# 087: ok
-  method88(covariant num a) => null; //# 088: compile-time error
-  method89(covariant num a) => null; //# 089: compile-time error
-  method90(covariant num a) => null; //# 090: ok
-  method91(covariant num a) => null; //# 091: ok
-  method92(covariant num a) => null; //# 092: ok
-  method93(covariant num a) => null; //# 093: compile-time error
-  method94(covariant num a) => null; //# 094: ok
-  method95(covariant num a) => null; //# 095: ok
-  method96(covariant num a) => null; //# 096: ok
-  method97(covariant num a) => null; //# 097: compile-time error
-  method98(covariant num a) => null; //# 098: ok
-  method99(covariant num a) => null; //# 099: ok
-  method100(covariant num a) => null; //# 100: ok
-  method101(covariant num a) => null; //# 101: compile-time error
-  method102(covariant num a) => null; //# 102: ok
-  method103(covariant num a) => null; //# 103: ok
-  method104(covariant num a) => null; //# 104: ok
-  method105(covariant num a) => null; //# 105: compile-time error
-  method106(covariant num a) => null; //# 106: ok
-  method107(covariant num a) => null; //# 107: ok
-  method108(covariant num a) => null; //# 108: ok
-  method109(covariant num a) => null; //# 109: compile-time error
-  method110(covariant num a) => null; //# 110: ok
-  method111(covariant num a) => null; //# 111: ok
-  method112(covariant num a) => null; //# 112: ok
-  method113(covariant num a) => null; //# 113: compile-time error
-  method114(covariant num a) => null; //# 114: compile-time error
-  method115(covariant int a) => null; //# 115: ok
-  method116(covariant int a) => null; //# 116: ok
-  method117(covariant int a) => null; //# 117: ok
-  method118(covariant int a) => null; //# 118: compile-time error
-  method119(covariant int a) => null; //# 119: ok
-  method120(covariant int a) => null; //# 120: ok
-  method121(covariant int a) => null; //# 121: ok
-  method122(covariant int a) => null; //# 122: compile-time error
-  method123(covariant int a) => null; //# 123: ok
-  method124(covariant int a) => null; //# 124: ok
-  method125(covariant int a) => null; //# 125: ok
-  method126(covariant int a) => null; //# 126: compile-time error
-  method127(covariant int a) => null; //# 127: ok
-  method128(covariant int a) => null; //# 128: ok
-  method129(covariant int a) => null; //# 129: ok
-  method130(covariant int a) => null; //# 130: compile-time error
-  method131(covariant int a) => null; //# 131: ok
-  method132(covariant int a) => null; //# 132: ok
-  method133(covariant int a) => null; //# 133: ok
-  method134(covariant int a) => null; //# 134: compile-time error
-  method135(covariant int a) => null; //# 135: ok
-  method136(covariant int a) => null; //# 136: ok
-  method137(covariant int a) => null; //# 137: ok
-  method138(covariant int a) => null; //# 138: compile-time error
-  method139(covariant int a) => null; //# 139: compile-time error
-  method140(covariant int a) => null; //# 140: ok
-  method141(covariant int a) => null; //# 141: ok
-  method142(covariant int a) => null; //# 142: ok
-  method143(covariant int a) => null; //# 143: compile-time error
-  method144(covariant int a) => null; //# 144: ok
-  method145(covariant int a) => null; //# 145: ok
-  method146(covariant int a) => null; //# 146: ok
-  method147(covariant int a) => null; //# 147: compile-time error
-  method148(covariant int a) => null; //# 148: ok
-  method149(covariant int a) => null; //# 149: ok
-  method150(covariant int a) => null; //# 150: ok
-  method151(covariant int a) => null; //# 151: compile-time error
-  method152(covariant int a) => null; //# 152: ok
-  method153(covariant int a) => null; //# 153: ok
-  method154(covariant int a) => null; //# 154: ok
-  method155(covariant int a) => null; //# 155: compile-time error
-  method156(covariant int a) => null; //# 156: ok
-  method157(covariant int a) => null; //# 157: ok
-  method158(covariant int a) => null; //# 158: ok
-  method159(covariant int a) => null; //# 159: compile-time error
-  method160(covariant int a) => null; //# 160: ok
-  method161(covariant int a) => null; //# 161: ok
-  method162(covariant int a) => null; //# 162: ok
-  method163(covariant int a) => null; //# 163: compile-time error
-  method164(covariant int a) => null; //# 164: compile-time error
-  method165(covariant String a) => null; //# 165: ok
-  method166(covariant String a) => null; //# 166: compile-time error
-  method167(covariant String a) => null; //# 167: compile-time error
-  method168(covariant String a) => null; //# 168: ok
-  method169(covariant String a) => null; //# 169: ok
-  method170(covariant String a) => null; //# 170: compile-time error
-  method171(covariant String a) => null; //# 171: compile-time error
-  method172(covariant String a) => null; //# 172: ok
-  method173(covariant String a) => null; //# 173: compile-time error
-  method174(covariant String a) => null; //# 174: compile-time error
-  method175(covariant String a) => null; //# 175: ok
-  method176(covariant String a) => null; //# 176: compile-time error
-  method177(covariant String a) => null; //# 177: compile-time error
-  method178(covariant String a) => null; //# 178: ok
-  method179(covariant String a) => null; //# 179: ok
-  method180(covariant String a) => null; //# 180: compile-time error
-  method181(covariant String a) => null; //# 181: compile-time error
-  method182(covariant String a) => null; //# 182: ok
-  method183(covariant String a) => null; //# 183: ok
-  method184(covariant String a) => null; //# 184: compile-time error
-  method185(covariant String a) => null; //# 185: compile-time error
-  method186(covariant String a) => null; //# 186: ok
-  method187(covariant String a) => null; //# 187: ok
-  method188(covariant String a) => null; //# 188: compile-time error
-  method189(covariant String a) => null; //# 189: compile-time error
-  method190(covariant String a) => null; //# 190: ok
-  method191(covariant String a) => null; //# 191: compile-time error
-  method192(covariant String a) => null; //# 192: compile-time error
-  method193(covariant String a) => null; //# 193: ok
-  method194(covariant String a) => null; //# 194: compile-time error
-  method195(covariant String a) => null; //# 195: compile-time error
-  method196(covariant String a) => null; //# 196: ok
-  method197(covariant String a) => null; //# 197: ok
-  method198(covariant String a) => null; //# 198: compile-time error
-  method199(covariant String a) => null; //# 199: compile-time error
-  method200(covariant String a) => null; //# 200: ok
-  method201(dynamic a) => null; //# 201: ok
-  method202(dynamic a) => null; //# 202: ok
-  method203(dynamic a) => null; //# 203: ok
-  method204(dynamic a) => null; //# 204: ok
-  method205(dynamic a) => null; //# 205: ok
-  method206(dynamic a) => null; //# 206: ok
-  method207(dynamic a) => null; //# 207: ok
-  method208(dynamic a) => null; //# 208: ok
-  method209(dynamic a) => null; //# 209: ok
-  method210(dynamic a) => null; //# 210: ok
-  method211(dynamic a) => null; //# 211: ok
-  method212(dynamic a) => null; //# 212: compile-time error
-  method213(dynamic a) => null; //# 213: ok
-  method214(dynamic a) => null; //# 214: ok
-  method215(dynamic a) => null; //# 215: ok
-  method216(dynamic a) => null; //# 216: compile-time error
-  method217(dynamic a) => null; //# 217: ok
-  method218(dynamic a) => null; //# 218: ok
-  method219(dynamic a) => null; //# 219: ok
-  method220(dynamic a) => null; //# 220: compile-time error
-  method221(dynamic a) => null; //# 221: ok
-  method222(dynamic a) => null; //# 222: ok
-  method223(dynamic a) => null; //# 223: ok
-  method224(dynamic a) => null; //# 224: compile-time error
-  method225(dynamic a) => null; //# 225: ok
-  method226(dynamic a) => null; //# 226: compile-time error
-  method227(dynamic a) => null; //# 227: compile-time error
-  method228(dynamic a) => null; //# 228: ok
-  method229(dynamic a) => null; //# 229: ok
-  method230(dynamic a) => null; //# 230: compile-time error
-  method231(dynamic a) => null; //# 231: compile-time error
-  method232(dynamic a) => null; //# 232: ok
-  method233(dynamic a) => null; //# 233: ok
-  method234(dynamic a) => null; //# 234: ok
-  method235(dynamic a) => null; //# 235: ok
-  method236(dynamic a) => null; //# 236: ok
-  method237(dynamic a) => null; //# 237: ok
-  method238(dynamic a) => null; //# 238: compile-time error
-  method239(dynamic a) => null; //# 239: compile-time error
-  method240(dynamic a) => null; //# 240: compile-time error
-  method241(dynamic a) => null; //# 241: compile-time error
-  method242(dynamic a) => null; //# 242: compile-time error
-  method243(dynamic a) => null; //# 243: compile-time error
-  method244(num a) => null; //# 244: ok
-  method245(num a) => null; //# 245: ok
-  method246(num a) => null; //# 246: ok
-  method247(num a) => null; //# 247: compile-time error
-  method248(num a) => null; //# 248: ok
-  method249(num a) => null; //# 249: ok
-  method250(num a) => null; //# 250: ok
-  method251(num a) => null; //# 251: compile-time error
-  method252(num a) => null; //# 252: ok
-  method253(num a) => null; //# 253: ok
-  method254(num a) => null; //# 254: ok
-  method255(num a) => null; //# 255: compile-time error
-  method256(num a) => null; //# 256: ok
-  method257(num a) => null; //# 257: ok
-  method258(num a) => null; //# 258: ok
-  method259(num a) => null; //# 259: compile-time error
-  method260(num a) => null; //# 260: ok
-  method261(num a) => null; //# 261: ok
-  method262(num a) => null; //# 262: ok
-  method263(num a) => null; //# 263: compile-time error
-  method264(num a) => null; //# 264: ok
-  method265(num a) => null; //# 265: ok
-  method266(num a) => null; //# 266: ok
-  method267(num a) => null; //# 267: compile-time error
-  method268(num a) => null; //# 268: compile-time error
-  method269(num a) => null; //# 269: ok
-  method270(num a) => null; //# 270: ok
-  method271(num a) => null; //# 271: ok
-  method272(num a) => null; //# 272: compile-time error
-  method273(num a) => null; //# 273: ok
-  method274(num a) => null; //# 274: compile-time error
-  method275(num a) => null; //# 275: compile-time error
-  method276(num a) => null; //# 276: compile-time error
-  method277(num a) => null; //# 277: ok
-  method278(num a) => null; //# 278: ok
-  method279(num a) => null; //# 279: ok
-  method280(num a) => null; //# 280: compile-time error
-  method281(num a) => null; //# 281: ok
-  method282(num a) => null; //# 282: ok
-  method283(num a) => null; //# 283: compile-time error
-  method284(num a) => null; //# 284: compile-time error
-  method285(num a) => null; //# 285: compile-time error
-  method286(num a) => null; //# 286: compile-time error
-  method287(int a) => null; //# 287: ok
-  method288(int a) => null; //# 288: ok
-  method289(int a) => null; //# 289: ok
-  method290(int a) => null; //# 290: compile-time error
-  method291(int a) => null; //# 291: ok
-  method292(int a) => null; //# 292: ok
-  method293(int a) => null; //# 293: ok
-  method294(int a) => null; //# 294: compile-time error
-  method295(int a) => null; //# 295: ok
-  method296(int a) => null; //# 296: ok
-  method297(int a) => null; //# 297: ok
-  method298(int a) => null; //# 298: compile-time error
-  method299(int a) => null; //# 299: ok
-  method300(int a) => null; //# 300: ok
-  method301(int a) => null; //# 301: ok
-  method302(int a) => null; //# 302: compile-time error
-  method303(int a) => null; //# 303: ok
-  method304(int a) => null; //# 304: ok
-  method305(int a) => null; //# 305: ok
-  method306(int a) => null; //# 306: compile-time error
-  method307(int a) => null; //# 307: ok
-  method308(int a) => null; //# 308: ok
-  method309(int a) => null; //# 309: ok
-  method310(int a) => null; //# 310: compile-time error
-  method311(int a) => null; //# 311: compile-time error
-  method312(int a) => null; //# 312: ok
-  method313(int a) => null; //# 313: ok
-  method314(int a) => null; //# 314: ok
-  method315(int a) => null; //# 315: compile-time error
-  method316(int a) => null; //# 316: ok
-  method317(int a) => null; //# 317: compile-time error
-  method318(int a) => null; //# 318: compile-time error
-  method319(int a) => null; //# 319: compile-time error
-  method320(int a) => null; //# 320: ok
-  method321(int a) => null; //# 321: ok
-  method322(int a) => null; //# 322: ok
-  method323(int a) => null; //# 323: compile-time error
-  method324(int a) => null; //# 324: ok
-  method325(int a) => null; //# 325: ok
-  method326(int a) => null; //# 326: compile-time error
-  method327(int a) => null; //# 327: compile-time error
-  method328(int a) => null; //# 328: ok
-  method329(int a) => null; //# 329: ok
-  method330(int a) => null; //# 330: ok
-  method331(int a) => null; //# 331: compile-time error
-  method332(int a) => null; //# 332: ok
-  method333(int a) => null; //# 333: ok
-  method334(int a) => null; //# 334: ok
-  method335(int a) => null; //# 335: compile-time error
-  method336(int a) => null; //# 336: compile-time error
-  method337(String a) => null; //# 337: ok
-  method338(String a) => null; //# 338: compile-time error
-  method339(String a) => null; //# 339: compile-time error
-  method340(String a) => null; //# 340: ok
-  method341(String a) => null; //# 341: ok
-  method342(String a) => null; //# 342: compile-time error
-  method343(String a) => null; //# 343: compile-time error
-  method344(String a) => null; //# 344: ok
-  method345(String a) => null; //# 345: compile-time error
-  method346(String a) => null; //# 346: compile-time error
-  method347(String a) => null; //# 347: ok
-  method348(String a) => null; //# 348: compile-time error
-  method349(String a) => null; //# 349: compile-time error
-  method350(String a) => null; //# 350: ok
-  method351(String a) => null; //# 351: ok
-  method352(String a) => null; //# 352: compile-time error
-  method353(String a) => null; //# 353: compile-time error
-  method354(String a) => null; //# 354: ok
-  method355(String a) => null; //# 355: ok
-  method356(String a) => null; //# 356: compile-time error
-  method357(String a) => null; //# 357: compile-time error
-  method358(String a) => null; //# 358: ok
-  method359(String a) => null; //# 359: ok
-  method360(String a) => null; //# 360: compile-time error
-  method361(String a) => null; //# 361: compile-time error
-  method362(String a) => null; //# 362: compile-time error
-  method363(String a) => null; //# 363: compile-time error
-  method364(String a) => null; //# 364: compile-time error
-  method365(String a) => null; //# 365: ok
-  method366(String a) => null; //# 366: compile-time error
-  method367(String a) => null; //# 367: compile-time error
-  method368(String a) => null; //# 368: ok
-  method369(String a) => null; //# 369: ok
-  method370(String a) => null; //# 370: compile-time error
-  method371(String a) => null; //# 371: compile-time error
-  method372(String a) => null; //# 372: ok
-}
-
-class B extends A {
-  method1(covariant dynamic a) => null; //# 001: continued
-  method2(covariant dynamic a) => null; //# 002: continued
-  method3(covariant dynamic a) => null; //# 003: continued
-  method4(covariant dynamic a) => null; //# 004: continued
-  method5(covariant dynamic a) => null; //# 005: continued
-  method6(covariant dynamic a) => null; //# 006: continued
-  method7(covariant dynamic a) => null; //# 007: continued
-  method8(covariant dynamic a) => null; //# 008: continued
-  method9(covariant num a) => null; //# 009: continued
-  method10(covariant num a) => null; //# 010: continued
-  method11(covariant num a) => null; //# 011: continued
-  method12(covariant num a) => null; //# 012: continued
-  method13(covariant num a) => null; //# 013: continued
-  method14(covariant num a) => null; //# 014: continued
-  method15(covariant num a) => null; //# 015: continued
-  method16(covariant num a) => null; //# 016: continued
-  method17(covariant int a) => null; //# 017: continued
-  method18(covariant int a) => null; //# 018: continued
-  method19(covariant int a) => null; //# 019: continued
-  method20(covariant int a) => null; //# 020: continued
-  method21(covariant int a) => null; //# 021: continued
-  method22(covariant int a) => null; //# 022: continued
-  method23(covariant int a) => null; //# 023: continued
-  method24(covariant int a) => null; //# 024: continued
-  method25(covariant String a) => null; //# 025: continued
-  method26(covariant String a) => null; //# 026: continued
-  method27(covariant String a) => null; //# 027: continued
-  method28(covariant String a) => null; //# 028: continued
-  method29(covariant String a) => null; //# 029: continued
-  method30(covariant String a) => null; //# 030: continued
-  method31(covariant String a) => null; //# 031: continued
-  method32(covariant String a) => null; //# 032: continued
-  method33(dynamic a) => null; //# 033: continued
-  method34(dynamic a) => null; //# 034: continued
-  method35(dynamic a) => null; //# 035: continued
-  method36(dynamic a) => null; //# 036: continued
-  method37(dynamic a) => null; //# 037: continued
-  method38(dynamic a) => null; //# 038: continued
-  method39(dynamic a) => null; //# 039: continued
-  method40(dynamic a) => null; //# 040: continued
-  method41(num a) => null; //# 041: continued
-  method42(num a) => null; //# 042: continued
-  method43(num a) => null; //# 043: continued
-  method44(num a) => null; //# 044: continued
-  method45(num a) => null; //# 045: continued
-  method46(num a) => null; //# 046: continued
-  method47(num a) => null; //# 047: continued
-  method48(num a) => null; //# 048: continued
-  method49(int a) => null; //# 049: continued
-  method50(int a) => null; //# 050: continued
-  method51(int a) => null; //# 051: continued
-  method52(int a) => null; //# 052: continued
-  method53(int a) => null; //# 053: continued
-  method54(int a) => null; //# 054: continued
-  method55(int a) => null; //# 055: continued
-  method56(int a) => null; //# 056: continued
-  method57(String a) => null; //# 057: continued
-  method58(String a) => null; //# 058: continued
-  method59(String a) => null; //# 059: continued
-  method60(String a) => null; //# 060: continued
-  method61(String a) => null; //# 061: continued
-  method62(String a) => null; //# 062: continued
-  method63(String a) => null; //# 063: continued
-  method64(String a) => null; //# 064: continued
-  method65(covariant dynamic a) => null; //# 065: continued
-  method66(covariant dynamic a) => null; //# 066: continued
-  method67(covariant dynamic a) => null; //# 067: continued
-  method68(covariant dynamic a) => null; //# 068: continued
-  method69(covariant dynamic a) => null; //# 069: continued
-  method70(covariant dynamic a) => null; //# 070: continued
-  method71(covariant dynamic a) => null; //# 071: continued
-  method72(covariant dynamic a) => null; //# 072: continued
-  method73(covariant num a) => null; //# 073: continued
-  method74(covariant num a) => null; //# 074: continued
-  method75(covariant num a) => null; //# 075: continued
-  method76(covariant num a) => null; //# 076: continued
-  method77(covariant num a) => null; //# 077: continued
-  method78(covariant num a) => null; //# 078: continued
-  method79(covariant num a) => null; //# 079: continued
-  method80(covariant num a) => null; //# 080: continued
-  method81(covariant int a) => null; //# 081: continued
-  method82(covariant int a) => null; //# 082: continued
-  method83(covariant int a) => null; //# 083: continued
-  method84(covariant int a) => null; //# 084: continued
-  method85(covariant int a) => null; //# 085: continued
-  method86(covariant int a) => null; //# 086: continued
-  method87(covariant int a) => null; //# 087: continued
-  method88(covariant int a) => null; //# 088: continued
-  method89(covariant String a) => null; //# 089: continued
-  method90(dynamic a) => null; //# 090: continued
-  method91(dynamic a) => null; //# 091: continued
-  method92(dynamic a) => null; //# 092: continued
-  method93(dynamic a) => null; //# 093: continued
-  method94(dynamic a) => null; //# 094: continued
-  method95(dynamic a) => null; //# 095: continued
-  method96(dynamic a) => null; //# 096: continued
-  method97(dynamic a) => null; //# 097: continued
-  method98(num a) => null; //# 098: continued
-  method99(num a) => null; //# 099: continued
-  method100(num a) => null; //# 100: continued
-  method101(num a) => null; //# 101: continued
-  method102(num a) => null; //# 102: continued
-  method103(num a) => null; //# 103: continued
-  method104(num a) => null; //# 104: continued
-  method105(num a) => null; //# 105: continued
-  method106(int a) => null; //# 106: continued
-  method107(int a) => null; //# 107: continued
-  method108(int a) => null; //# 108: continued
-  method109(int a) => null; //# 109: continued
-  method110(int a) => null; //# 110: continued
-  method111(int a) => null; //# 111: continued
-  method112(int a) => null; //# 112: continued
-  method113(int a) => null; //# 113: continued
-  method114(String a) => null; //# 114: continued
-  method115(covariant dynamic a) => null; //# 115: continued
-  method116(covariant dynamic a) => null; //# 116: continued
-  method117(covariant dynamic a) => null; //# 117: continued
-  method118(covariant dynamic a) => null; //# 118: continued
-  method119(covariant dynamic a) => null; //# 119: continued
-  method120(covariant dynamic a) => null; //# 120: continued
-  method121(covariant dynamic a) => null; //# 121: continued
-  method122(covariant dynamic a) => null; //# 122: continued
-  method123(covariant num a) => null; //# 123: continued
-  method124(covariant num a) => null; //# 124: continued
-  method125(covariant num a) => null; //# 125: continued
-  method126(covariant num a) => null; //# 126: continued
-  method127(covariant num a) => null; //# 127: continued
-  method128(covariant num a) => null; //# 128: continued
-  method129(covariant num a) => null; //# 129: continued
-  method130(covariant num a) => null; //# 130: continued
-  method131(covariant int a) => null; //# 131: continued
-  method132(covariant int a) => null; //# 132: continued
-  method133(covariant int a) => null; //# 133: continued
-  method134(covariant int a) => null; //# 134: continued
-  method135(covariant int a) => null; //# 135: continued
-  method136(covariant int a) => null; //# 136: continued
-  method137(covariant int a) => null; //# 137: continued
-  method138(covariant int a) => null; //# 138: continued
-  method139(covariant String a) => null; //# 139: continued
-  method140(dynamic a) => null; //# 140: continued
-  method141(dynamic a) => null; //# 141: continued
-  method142(dynamic a) => null; //# 142: continued
-  method143(dynamic a) => null; //# 143: continued
-  method144(dynamic a) => null; //# 144: continued
-  method145(dynamic a) => null; //# 145: continued
-  method146(dynamic a) => null; //# 146: continued
-  method147(dynamic a) => null; //# 147: continued
-  method148(num a) => null; //# 148: continued
-  method149(num a) => null; //# 149: continued
-  method150(num a) => null; //# 150: continued
-  method151(num a) => null; //# 151: continued
-  method152(num a) => null; //# 152: continued
-  method153(num a) => null; //# 153: continued
-  method154(num a) => null; //# 154: continued
-  method155(num a) => null; //# 155: continued
-  method156(int a) => null; //# 156: continued
-  method157(int a) => null; //# 157: continued
-  method158(int a) => null; //# 158: continued
-  method159(int a) => null; //# 159: continued
-  method160(int a) => null; //# 160: continued
-  method161(int a) => null; //# 161: continued
-  method162(int a) => null; //# 162: continued
-  method163(int a) => null; //# 163: continued
-  method164(String a) => null; //# 164: continued
-  method165(covariant dynamic a) => null; //# 165: continued
-  method166(covariant dynamic a) => null; //# 166: continued
-  method167(covariant dynamic a) => null; //# 167: continued
-  method168(covariant dynamic a) => null; //# 168: continued
-  method169(covariant dynamic a) => null; //# 169: continued
-  method170(covariant dynamic a) => null; //# 170: continued
-  method171(covariant dynamic a) => null; //# 171: continued
-  method172(covariant dynamic a) => null; //# 172: continued
-  method173(covariant num a) => null; //# 173: continued
-  method174(covariant int a) => null; //# 174: continued
-  method175(covariant String a) => null; //# 175: continued
-  method176(covariant String a) => null; //# 176: continued
-  method177(covariant String a) => null; //# 177: continued
-  method178(covariant String a) => null; //# 178: continued
-  method179(covariant String a) => null; //# 179: continued
-  method180(covariant String a) => null; //# 180: continued
-  method181(covariant String a) => null; //# 181: continued
-  method182(covariant String a) => null; //# 182: continued
-  method183(dynamic a) => null; //# 183: continued
-  method184(dynamic a) => null; //# 184: continued
-  method185(dynamic a) => null; //# 185: continued
-  method186(dynamic a) => null; //# 186: continued
-  method187(dynamic a) => null; //# 187: continued
-  method188(dynamic a) => null; //# 188: continued
-  method189(dynamic a) => null; //# 189: continued
-  method190(dynamic a) => null; //# 190: continued
-  method191(num a) => null; //# 191: continued
-  method192(int a) => null; //# 192: continued
-  method193(String a) => null; //# 193: continued
-  method194(String a) => null; //# 194: continued
-  method195(String a) => null; //# 195: continued
-  method196(String a) => null; //# 196: continued
-  method197(String a) => null; //# 197: continued
-  method198(String a) => null; //# 198: continued
-  method199(String a) => null; //# 199: continued
-  method200(String a) => null; //# 200: continued
-  method201(covariant dynamic a) => null; //# 201: continued
-  method202(covariant dynamic a) => null; //# 202: continued
-  method203(covariant dynamic a) => null; //# 203: continued
-  method204(covariant dynamic a) => null; //# 204: continued
-  method205(covariant dynamic a) => null; //# 205: continued
-  method206(covariant dynamic a) => null; //# 206: continued
-  method207(covariant dynamic a) => null; //# 207: continued
-  method208(covariant dynamic a) => null; //# 208: continued
-  method209(covariant num a) => null; //# 209: continued
-  method210(covariant num a) => null; //# 210: continued
-  method211(covariant num a) => null; //# 211: continued
-  method212(covariant num a) => null; //# 212: continued
-  method213(covariant num a) => null; //# 213: continued
-  method214(covariant num a) => null; //# 214: continued
-  method215(covariant num a) => null; //# 215: continued
-  method216(covariant num a) => null; //# 216: continued
-  method217(covariant int a) => null; //# 217: continued
-  method218(covariant int a) => null; //# 218: continued
-  method219(covariant int a) => null; //# 219: continued
-  method220(covariant int a) => null; //# 220: continued
-  method221(covariant int a) => null; //# 221: continued
-  method222(covariant int a) => null; //# 222: continued
-  method223(covariant int a) => null; //# 223: continued
-  method224(covariant int a) => null; //# 224: continued
-  method225(covariant String a) => null; //# 225: continued
-  method226(covariant String a) => null; //# 226: continued
-  method227(covariant String a) => null; //# 227: continued
-  method228(covariant String a) => null; //# 228: continued
-  method229(covariant String a) => null; //# 229: continued
-  method230(covariant String a) => null; //# 230: continued
-  method231(covariant String a) => null; //# 231: continued
-  method232(covariant String a) => null; //# 232: continued
-  method233(dynamic a) => null; //# 233: continued
-  method234(dynamic a) => null; //# 234: continued
-  method235(dynamic a) => null; //# 235: continued
-  method236(dynamic a) => null; //# 236: continued
-  method237(dynamic a) => null; //# 237: continued
-  method238(dynamic a) => null; //# 238: continued
-  method239(dynamic a) => null; //# 239: continued
-  method240(dynamic a) => null; //# 240: continued
-  method241(num a) => null; //# 241: continued
-  method242(int a) => null; //# 242: continued
-  method243(String a) => null; //# 243: continued
-  method244(covariant dynamic a) => null; //# 244: continued
-  method245(covariant dynamic a) => null; //# 245: continued
-  method246(covariant dynamic a) => null; //# 246: continued
-  method247(covariant dynamic a) => null; //# 247: continued
-  method248(covariant dynamic a) => null; //# 248: continued
-  method249(covariant dynamic a) => null; //# 249: continued
-  method250(covariant dynamic a) => null; //# 250: continued
-  method251(covariant dynamic a) => null; //# 251: continued
-  method252(covariant num a) => null; //# 252: continued
-  method253(covariant num a) => null; //# 253: continued
-  method254(covariant num a) => null; //# 254: continued
-  method255(covariant num a) => null; //# 255: continued
-  method256(covariant num a) => null; //# 256: continued
-  method257(covariant num a) => null; //# 257: continued
-  method258(covariant num a) => null; //# 258: continued
-  method259(covariant num a) => null; //# 259: continued
-  method260(covariant int a) => null; //# 260: continued
-  method261(covariant int a) => null; //# 261: continued
-  method262(covariant int a) => null; //# 262: continued
-  method263(covariant int a) => null; //# 263: continued
-  method264(covariant int a) => null; //# 264: continued
-  method265(covariant int a) => null; //# 265: continued
-  method266(covariant int a) => null; //# 266: continued
-  method267(covariant int a) => null; //# 267: continued
-  method268(covariant String a) => null; //# 268: continued
-  method269(dynamic a) => null; //# 269: continued
-  method270(dynamic a) => null; //# 270: continued
-  method271(dynamic a) => null; //# 271: continued
-  method272(dynamic a) => null; //# 272: continued
-  method273(dynamic a) => null; //# 273: continued
-  method274(dynamic a) => null; //# 274: continued
-  method275(dynamic a) => null; //# 275: continued
-  method276(dynamic a) => null; //# 276: continued
-  method277(num a) => null; //# 277: continued
-  method278(num a) => null; //# 278: continued
-  method279(num a) => null; //# 279: continued
-  method280(num a) => null; //# 280: continued
-  method281(num a) => null; //# 281: continued
-  method282(num a) => null; //# 282: continued
-  method283(num a) => null; //# 283: continued
-  method284(num a) => null; //# 284: continued
-  method285(int a) => null; //# 285: continued
-  method286(String a) => null; //# 286: continued
-  method287(covariant dynamic a) => null; //# 287: continued
-  method288(covariant dynamic a) => null; //# 288: continued
-  method289(covariant dynamic a) => null; //# 289: continued
-  method290(covariant dynamic a) => null; //# 290: continued
-  method291(covariant dynamic a) => null; //# 291: continued
-  method292(covariant dynamic a) => null; //# 292: continued
-  method293(covariant dynamic a) => null; //# 293: continued
-  method294(covariant dynamic a) => null; //# 294: continued
-  method295(covariant num a) => null; //# 295: continued
-  method296(covariant num a) => null; //# 296: continued
-  method297(covariant num a) => null; //# 297: continued
-  method298(covariant num a) => null; //# 298: continued
-  method299(covariant num a) => null; //# 299: continued
-  method300(covariant num a) => null; //# 300: continued
-  method301(covariant num a) => null; //# 301: continued
-  method302(covariant num a) => null; //# 302: continued
-  method303(covariant int a) => null; //# 303: continued
-  method304(covariant int a) => null; //# 304: continued
-  method305(covariant int a) => null; //# 305: continued
-  method306(covariant int a) => null; //# 306: continued
-  method307(covariant int a) => null; //# 307: continued
-  method308(covariant int a) => null; //# 308: continued
-  method309(covariant int a) => null; //# 309: continued
-  method310(covariant int a) => null; //# 310: continued
-  method311(covariant String a) => null; //# 311: continued
-  method312(dynamic a) => null; //# 312: continued
-  method313(dynamic a) => null; //# 313: continued
-  method314(dynamic a) => null; //# 314: continued
-  method315(dynamic a) => null; //# 315: continued
-  method316(dynamic a) => null; //# 316: continued
-  method317(dynamic a) => null; //# 317: continued
-  method318(dynamic a) => null; //# 318: continued
-  method319(dynamic a) => null; //# 319: continued
-  method320(num a) => null; //# 320: continued
-  method321(num a) => null; //# 321: continued
-  method322(num a) => null; //# 322: continued
-  method323(num a) => null; //# 323: continued
-  method324(num a) => null; //# 324: continued
-  method325(num a) => null; //# 325: continued
-  method326(num a) => null; //# 326: continued
-  method327(num a) => null; //# 327: continued
-  method328(int a) => null; //# 328: continued
-  method329(int a) => null; //# 329: continued
-  method330(int a) => null; //# 330: continued
-  method331(int a) => null; //# 331: continued
-  method332(int a) => null; //# 332: continued
-  method333(int a) => null; //# 333: continued
-  method334(int a) => null; //# 334: continued
-  method335(int a) => null; //# 335: continued
-  method336(String a) => null; //# 336: continued
-  method337(covariant dynamic a) => null; //# 337: continued
-  method338(covariant dynamic a) => null; //# 338: continued
-  method339(covariant dynamic a) => null; //# 339: continued
-  method340(covariant dynamic a) => null; //# 340: continued
-  method341(covariant dynamic a) => null; //# 341: continued
-  method342(covariant dynamic a) => null; //# 342: continued
-  method343(covariant dynamic a) => null; //# 343: continued
-  method344(covariant dynamic a) => null; //# 344: continued
-  method345(covariant num a) => null; //# 345: continued
-  method346(covariant int a) => null; //# 346: continued
-  method347(covariant String a) => null; //# 347: continued
-  method348(covariant String a) => null; //# 348: continued
-  method349(covariant String a) => null; //# 349: continued
-  method350(covariant String a) => null; //# 350: continued
-  method351(covariant String a) => null; //# 351: continued
-  method352(covariant String a) => null; //# 352: continued
-  method353(covariant String a) => null; //# 353: continued
-  method354(covariant String a) => null; //# 354: continued
-  method355(dynamic a) => null; //# 355: continued
-  method356(dynamic a) => null; //# 356: continued
-  method357(dynamic a) => null; //# 357: continued
-  method358(dynamic a) => null; //# 358: continued
-  method359(dynamic a) => null; //# 359: continued
-  method360(dynamic a) => null; //# 360: continued
-  method361(dynamic a) => null; //# 361: continued
-  method362(dynamic a) => null; //# 362: continued
-  method363(num a) => null; //# 363: continued
-  method364(int a) => null; //# 364: continued
-  method365(String a) => null; //# 365: continued
-  method366(String a) => null; //# 366: continued
-  method367(String a) => null; //# 367: continued
-  method368(String a) => null; //# 368: continued
-  method369(String a) => null; //# 369: continued
-  method370(String a) => null; //# 370: continued
-  method371(String a) => null; //# 371: continued
-  method372(String a) => null; //# 372: continued
-}
-
-class C extends B {
-  method1(covariant dynamic a) => null; //# 001: continued
-  method2(covariant num a) => null; //# 002: continued
-  method3(covariant int a) => null; //# 003: continued
-  method4(covariant String a) => null; //# 004: continued
-  method5(dynamic a) => null; //# 005: continued
-  method6(num a) => null; //# 006: continued
-  method7(int a) => null; //# 007: continued
-  method8(String a) => null; //# 008: continued
-  method9(covariant dynamic a) => null; //# 009: continued
-  method10(covariant num a) => null; //# 010: continued
-  method11(covariant int a) => null; //# 011: continued
-  method12(covariant String a) => null; //# 012: continued
-  method13(dynamic a) => null; //# 013: continued
-  method14(num a) => null; //# 014: continued
-  method15(int a) => null; //# 015: continued
-  method16(String a) => null; //# 016: continued
-  method17(covariant dynamic a) => null; //# 017: continued
-  method18(covariant num a) => null; //# 018: continued
-  method19(covariant int a) => null; //# 019: continued
-  method20(covariant String a) => null; //# 020: continued
-  method21(dynamic a) => null; //# 021: continued
-  method22(num a) => null; //# 022: continued
-  method23(int a) => null; //# 023: continued
-  method24(String a) => null; //# 024: continued
-  method25(covariant dynamic a) => null; //# 025: continued
-  method26(covariant num a) => null; //# 026: continued
-  method27(covariant int a) => null; //# 027: continued
-  method28(covariant String a) => null; //# 028: continued
-  method29(dynamic a) => null; //# 029: continued
-  method30(num a) => null; //# 030: continued
-  method31(int a) => null; //# 031: continued
-  method32(String a) => null; //# 032: continued
-  method33(covariant dynamic a) => null; //# 033: continued
-  method34(covariant num a) => null; //# 034: continued
-  method35(covariant int a) => null; //# 035: continued
-  method36(covariant String a) => null; //# 036: continued
-  method37(dynamic a) => null; //# 037: continued
-  method38(num a) => null; //# 038: continued
-  method39(int a) => null; //# 039: continued
-  method40(String a) => null; //# 040: continued
-  method41(covariant dynamic a) => null; //# 041: continued
-  method42(covariant num a) => null; //# 042: continued
-  method43(covariant int a) => null; //# 043: continued
-  method44(covariant String a) => null; //# 044: continued
-  method45(dynamic a) => null; //# 045: continued
-  method46(num a) => null; //# 046: continued
-  method47(int a) => null; //# 047: continued
-  method48(String a) => null; //# 048: continued
-  method49(covariant dynamic a) => null; //# 049: continued
-  method50(covariant num a) => null; //# 050: continued
-  method51(covariant int a) => null; //# 051: continued
-  method52(covariant String a) => null; //# 052: continued
-  method53(dynamic a) => null; //# 053: continued
-  method54(num a) => null; //# 054: continued
-  method55(int a) => null; //# 055: continued
-  method56(String a) => null; //# 056: continued
-  method57(covariant dynamic a) => null; //# 057: continued
-  method58(covariant num a) => null; //# 058: continued
-  method59(covariant int a) => null; //# 059: continued
-  method60(covariant String a) => null; //# 060: continued
-  method61(dynamic a) => null; //# 061: continued
-  method62(num a) => null; //# 062: continued
-  method63(int a) => null; //# 063: continued
-  method64(String a) => null; //# 064: continued
-  method65(covariant dynamic a) => null; //# 065: continued
-  method66(covariant num a) => null; //# 066: continued
-  method67(covariant int a) => null; //# 067: continued
-  method68(covariant String a) => null; //# 068: continued
-  method69(dynamic a) => null; //# 069: continued
-  method70(num a) => null; //# 070: continued
-  method71(int a) => null; //# 071: continued
-  method72(String a) => null; //# 072: continued
-  method73(covariant dynamic a) => null; //# 073: continued
-  method74(covariant num a) => null; //# 074: continued
-  method75(covariant int a) => null; //# 075: continued
-  method76(covariant String a) => null; //# 076: continued
-  method77(dynamic a) => null; //# 077: continued
-  method78(num a) => null; //# 078: continued
-  method79(int a) => null; //# 079: continued
-  method80(String a) => null; //# 080: continued
-  method81(covariant dynamic a) => null; //# 081: continued
-  method82(covariant num a) => null; //# 082: continued
-  method83(covariant int a) => null; //# 083: continued
-  method84(covariant String a) => null; //# 084: continued
-  method85(dynamic a) => null; //# 085: continued
-  method86(num a) => null; //# 086: continued
-  method87(int a) => null; //# 087: continued
-  method88(String a) => null; //# 088: continued
-  method90(covariant dynamic a) => null; //# 090: continued
-  method91(covariant num a) => null; //# 091: continued
-  method92(covariant int a) => null; //# 092: continued
-  method93(covariant String a) => null; //# 093: continued
-  method94(dynamic a) => null; //# 094: continued
-  method95(num a) => null; //# 095: continued
-  method96(int a) => null; //# 096: continued
-  method97(String a) => null; //# 097: continued
-  method98(covariant dynamic a) => null; //# 098: continued
-  method99(covariant num a) => null; //# 099: continued
-  method100(covariant int a) => null; //# 100: continued
-  method101(covariant String a) => null; //# 101: continued
-  method102(dynamic a) => null; //# 102: continued
-  method103(num a) => null; //# 103: continued
-  method104(int a) => null; //# 104: continued
-  method105(String a) => null; //# 105: continued
-  method106(covariant dynamic a) => null; //# 106: continued
-  method107(covariant num a) => null; //# 107: continued
-  method108(covariant int a) => null; //# 108: continued
-  method109(covariant String a) => null; //# 109: continued
-  method110(dynamic a) => null; //# 110: continued
-  method111(num a) => null; //# 111: continued
-  method112(int a) => null; //# 112: continued
-  method113(String a) => null; //# 113: continued
-  method115(covariant dynamic a) => null; //# 115: continued
-  method116(covariant num a) => null; //# 116: continued
-  method117(covariant int a) => null; //# 117: continued
-  method118(covariant String a) => null; //# 118: continued
-  method119(dynamic a) => null; //# 119: continued
-  method120(num a) => null; //# 120: continued
-  method121(int a) => null; //# 121: continued
-  method122(String a) => null; //# 122: continued
-  method123(covariant dynamic a) => null; //# 123: continued
-  method124(covariant num a) => null; //# 124: continued
-  method125(covariant int a) => null; //# 125: continued
-  method126(covariant String a) => null; //# 126: continued
-  method127(dynamic a) => null; //# 127: continued
-  method128(num a) => null; //# 128: continued
-  method129(int a) => null; //# 129: continued
-  method130(String a) => null; //# 130: continued
-  method131(covariant dynamic a) => null; //# 131: continued
-  method132(covariant num a) => null; //# 132: continued
-  method133(covariant int a) => null; //# 133: continued
-  method134(covariant String a) => null; //# 134: continued
-  method135(dynamic a) => null; //# 135: continued
-  method136(num a) => null; //# 136: continued
-  method137(int a) => null; //# 137: continued
-  method138(String a) => null; //# 138: continued
-  method140(covariant dynamic a) => null; //# 140: continued
-  method141(covariant num a) => null; //# 141: continued
-  method142(covariant int a) => null; //# 142: continued
-  method143(covariant String a) => null; //# 143: continued
-  method144(dynamic a) => null; //# 144: continued
-  method145(num a) => null; //# 145: continued
-  method146(int a) => null; //# 146: continued
-  method147(String a) => null; //# 147: continued
-  method148(covariant dynamic a) => null; //# 148: continued
-  method149(covariant num a) => null; //# 149: continued
-  method150(covariant int a) => null; //# 150: continued
-  method151(covariant String a) => null; //# 151: continued
-  method152(dynamic a) => null; //# 152: continued
-  method153(num a) => null; //# 153: continued
-  method154(int a) => null; //# 154: continued
-  method155(String a) => null; //# 155: continued
-  method156(covariant dynamic a) => null; //# 156: continued
-  method157(covariant num a) => null; //# 157: continued
-  method158(covariant int a) => null; //# 158: continued
-  method159(covariant String a) => null; //# 159: continued
-  method160(dynamic a) => null; //# 160: continued
-  method161(num a) => null; //# 161: continued
-  method162(int a) => null; //# 162: continued
-  method163(String a) => null; //# 163: continued
-  method165(covariant dynamic a) => null; //# 165: continued
-  method166(covariant num a) => null; //# 166: continued
-  method167(covariant int a) => null; //# 167: continued
-  method168(covariant String a) => null; //# 168: continued
-  method169(dynamic a) => null; //# 169: continued
-  method170(num a) => null; //# 170: continued
-  method171(int a) => null; //# 171: continued
-  method172(String a) => null; //# 172: continued
-  method175(covariant dynamic a) => null; //# 175: continued
-  method176(covariant num a) => null; //# 176: continued
-  method177(covariant int a) => null; //# 177: continued
-  method178(covariant String a) => null; //# 178: continued
-  method179(dynamic a) => null; //# 179: continued
-  method180(num a) => null; //# 180: continued
-  method181(int a) => null; //# 181: continued
-  method182(String a) => null; //# 182: continued
-  method183(covariant dynamic a) => null; //# 183: continued
-  method184(covariant num a) => null; //# 184: continued
-  method185(covariant int a) => null; //# 185: continued
-  method186(covariant String a) => null; //# 186: continued
-  method187(dynamic a) => null; //# 187: continued
-  method188(num a) => null; //# 188: continued
-  method189(int a) => null; //# 189: continued
-  method190(String a) => null; //# 190: continued
-  method193(covariant dynamic a) => null; //# 193: continued
-  method194(covariant num a) => null; //# 194: continued
-  method195(covariant int a) => null; //# 195: continued
-  method196(covariant String a) => null; //# 196: continued
-  method197(dynamic a) => null; //# 197: continued
-  method198(num a) => null; //# 198: continued
-  method199(int a) => null; //# 199: continued
-  method200(String a) => null; //# 200: continued
-  method201(covariant dynamic a) => null; //# 201: continued
-  method202(covariant num a) => null; //# 202: continued
-  method203(covariant int a) => null; //# 203: continued
-  method204(covariant String a) => null; //# 204: continued
-  method205(dynamic a) => null; //# 205: continued
-  method206(num a) => null; //# 206: continued
-  method207(int a) => null; //# 207: continued
-  method208(String a) => null; //# 208: continued
-  method209(covariant dynamic a) => null; //# 209: continued
-  method210(covariant num a) => null; //# 210: continued
-  method211(covariant int a) => null; //# 211: continued
-  method212(covariant String a) => null; //# 212: continued
-  method213(dynamic a) => null; //# 213: continued
-  method214(num a) => null; //# 214: continued
-  method215(int a) => null; //# 215: continued
-  method216(String a) => null; //# 216: continued
-  method217(covariant dynamic a) => null; //# 217: continued
-  method218(covariant num a) => null; //# 218: continued
-  method219(covariant int a) => null; //# 219: continued
-  method220(covariant String a) => null; //# 220: continued
-  method221(dynamic a) => null; //# 221: continued
-  method222(num a) => null; //# 222: continued
-  method223(int a) => null; //# 223: continued
-  method224(String a) => null; //# 224: continued
-  method225(covariant dynamic a) => null; //# 225: continued
-  method226(covariant num a) => null; //# 226: continued
-  method227(covariant int a) => null; //# 227: continued
-  method228(covariant String a) => null; //# 228: continued
-  method229(dynamic a) => null; //# 229: continued
-  method230(num a) => null; //# 230: continued
-  method231(int a) => null; //# 231: continued
-  method232(String a) => null; //# 232: continued
-  method233(covariant dynamic a) => null; //# 233: continued
-  method234(covariant num a) => null; //# 234: continued
-  method235(covariant int a) => null; //# 235: continued
-  method236(covariant String a) => null; //# 236: continued
-  method237(dynamic a) => null; //# 237: continued
-  method238(num a) => null; //# 238: continued
-  method239(int a) => null; //# 239: continued
-  method240(String a) => null; //# 240: continued
-  method244(covariant dynamic a) => null; //# 244: continued
-  method245(covariant num a) => null; //# 245: continued
-  method246(covariant int a) => null; //# 246: continued
-  method247(covariant String a) => null; //# 247: continued
-  method248(dynamic a) => null; //# 248: continued
-  method249(num a) => null; //# 249: continued
-  method250(int a) => null; //# 250: continued
-  method251(String a) => null; //# 251: continued
-  method252(covariant dynamic a) => null; //# 252: continued
-  method253(covariant num a) => null; //# 253: continued
-  method254(covariant int a) => null; //# 254: continued
-  method255(covariant String a) => null; //# 255: continued
-  method256(dynamic a) => null; //# 256: continued
-  method257(num a) => null; //# 257: continued
-  method258(int a) => null; //# 258: continued
-  method259(String a) => null; //# 259: continued
-  method260(covariant dynamic a) => null; //# 260: continued
-  method261(covariant num a) => null; //# 261: continued
-  method262(covariant int a) => null; //# 262: continued
-  method263(covariant String a) => null; //# 263: continued
-  method264(dynamic a) => null; //# 264: continued
-  method265(num a) => null; //# 265: continued
-  method266(int a) => null; //# 266: continued
-  method267(String a) => null; //# 267: continued
-  method269(covariant dynamic a) => null; //# 269: continued
-  method270(covariant num a) => null; //# 270: continued
-  method271(covariant int a) => null; //# 271: continued
-  method272(covariant String a) => null; //# 272: continued
-  method273(dynamic a) => null; //# 273: continued
-  method274(num a) => null; //# 274: continued
-  method275(int a) => null; //# 275: continued
-  method276(String a) => null; //# 276: continued
-  method277(covariant dynamic a) => null; //# 277: continued
-  method278(covariant num a) => null; //# 278: continued
-  method279(covariant int a) => null; //# 279: continued
-  method280(covariant String a) => null; //# 280: continued
-  method281(dynamic a) => null; //# 281: continued
-  method282(num a) => null; //# 282: continued
-  method283(int a) => null; //# 283: continued
-  method284(String a) => null; //# 284: continued
-  method287(covariant dynamic a) => null; //# 287: continued
-  method288(covariant num a) => null; //# 288: continued
-  method289(covariant int a) => null; //# 289: continued
-  method290(covariant String a) => null; //# 290: continued
-  method291(dynamic a) => null; //# 291: continued
-  method292(num a) => null; //# 292: continued
-  method293(int a) => null; //# 293: continued
-  method294(String a) => null; //# 294: continued
-  method295(covariant dynamic a) => null; //# 295: continued
-  method296(covariant num a) => null; //# 296: continued
-  method297(covariant int a) => null; //# 297: continued
-  method298(covariant String a) => null; //# 298: continued
-  method299(dynamic a) => null; //# 299: continued
-  method300(num a) => null; //# 300: continued
-  method301(int a) => null; //# 301: continued
-  method302(String a) => null; //# 302: continued
-  method303(covariant dynamic a) => null; //# 303: continued
-  method304(covariant num a) => null; //# 304: continued
-  method305(covariant int a) => null; //# 305: continued
-  method306(covariant String a) => null; //# 306: continued
-  method307(dynamic a) => null; //# 307: continued
-  method308(num a) => null; //# 308: continued
-  method309(int a) => null; //# 309: continued
-  method310(String a) => null; //# 310: continued
-  method312(covariant dynamic a) => null; //# 312: continued
-  method313(covariant num a) => null; //# 313: continued
-  method314(covariant int a) => null; //# 314: continued
-  method315(covariant String a) => null; //# 315: continued
-  method316(dynamic a) => null; //# 316: continued
-  method317(num a) => null; //# 317: continued
-  method318(int a) => null; //# 318: continued
-  method319(String a) => null; //# 319: continued
-  method320(covariant dynamic a) => null; //# 320: continued
-  method321(covariant num a) => null; //# 321: continued
-  method322(covariant int a) => null; //# 322: continued
-  method323(covariant String a) => null; //# 323: continued
-  method324(dynamic a) => null; //# 324: continued
-  method325(num a) => null; //# 325: continued
-  method326(int a) => null; //# 326: continued
-  method327(String a) => null; //# 327: continued
-  method328(covariant dynamic a) => null; //# 328: continued
-  method329(covariant num a) => null; //# 329: continued
-  method330(covariant int a) => null; //# 330: continued
-  method331(covariant String a) => null; //# 331: continued
-  method332(dynamic a) => null; //# 332: continued
-  method333(num a) => null; //# 333: continued
-  method334(int a) => null; //# 334: continued
-  method335(String a) => null; //# 335: continued
-  method337(covariant dynamic a) => null; //# 337: continued
-  method338(covariant num a) => null; //# 338: continued
-  method339(covariant int a) => null; //# 339: continued
-  method340(covariant String a) => null; //# 340: continued
-  method341(dynamic a) => null; //# 341: continued
-  method342(num a) => null; //# 342: continued
-  method343(int a) => null; //# 343: continued
-  method344(String a) => null; //# 344: continued
-  method347(covariant dynamic a) => null; //# 347: continued
-  method348(covariant num a) => null; //# 348: continued
-  method349(covariant int a) => null; //# 349: continued
-  method350(covariant String a) => null; //# 350: continued
-  method351(dynamic a) => null; //# 351: continued
-  method352(num a) => null; //# 352: continued
-  method353(int a) => null; //# 353: continued
-  method354(String a) => null; //# 354: continued
-  method355(covariant dynamic a) => null; //# 355: continued
-  method356(covariant num a) => null; //# 356: continued
-  method357(covariant int a) => null; //# 357: continued
-  method358(covariant String a) => null; //# 358: continued
-  method359(dynamic a) => null; //# 359: continued
-  method360(num a) => null; //# 360: continued
-  method361(int a) => null; //# 361: continued
-  method362(String a) => null; //# 362: continued
-  method365(covariant dynamic a) => null; //# 365: continued
-  method366(covariant num a) => null; //# 366: continued
-  method367(covariant int a) => null; //# 367: continued
-  method368(covariant String a) => null; //# 368: continued
-  method369(dynamic a) => null; //# 369: continued
-  method370(num a) => null; //# 370: continued
-  method371(int a) => null; //# 371: continued
-  method372(String a) => null; //# 372: continued
-}
diff --git a/tests/language_2/override/inheritance_method_test.dart b/tests/language_2/override/inheritance_method_test.dart
deleted file mode 100644
index 3b32e9d0fa3..00000000000
--- a/tests/language_2/override/inheritance_method_test.dart
+++ /dev/null
@@ -1,118 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test static warnings for method overrides.
-
-class A {
-  method1() => null; //# 01: ok
-  method2(a) => null; //# 02: ok
-  method3(a, b, c, d) => null; //# 03: ok
-  method4() => null; //# 04: compile-time error
-  method6(a, b, c) => null; //# 06: compile-time error
-  method7([a]) => null; //# 07: ok
-  method8([a, b]) => null; //# 08: ok
-  method9([a, b, c]) => null; //# 09: ok
-  method10([a]) => null; //# 10: ok
-  method11(a) => null; //# 11: compile-time error
-  method12(a, [b]) => null; //# 12: compile-time error
-  method13(a, [b]) => null; //# 13: compile-time error
-  method14(a, b, [c, d, e]) => null; //# 14: compile-time error
-  method15({a}) => null; //# 15: ok
-  method16({a, b}) => null; //# 16: ok
-  method17({a, b, c}) => null; //# 17: ok
-  method18(d, {a, b, c}) => null; //# 18: ok
-  method19({a}) => null; //# 19: compile-time error
-  method20({a, b}) => null; //# 20: compile-time error
-  method21({a, b, c, d}) => null; //# 21: compile-time error
-
-  method22(int a) => null; //# 22: ok
-  method23(int a) => null; //# 23: ok
-  void method24() {} //# 24: ok
-  method25() => null; //# 25: ok
-  void method26() {} //# 26: ok
-  int method27() => null; //# 27: compile-time error
-  method28(int a) => null; //# 28: compile-time error
-  method29(int a) => null; //# 29: compile-time error
-  method30(int a) => null; //# 30: compile-time error
-  method34(int a) => null; //# 34: ok
-  method35(int a) => null; //# 35: ok
-  method36(int a) => null; //# 36: compile-time error
-  method37(num a) => null; //# 37: ok
-  method38(covariant num a) => null; //# 38: ok
-  method39(num a) => null; //# 39: compile-time error
-}
-
-class B extends A {
-  method28(num a) => null; //# 28: continued
-  method29(a) => null; //# 29: continued
-  method34(num a) => null; //# 34: continued
-  method35(dynamic a) => null; //# 35: continued
-  method36(dynamic a) => null; //# 36: continued
-  method37(covariant dynamic a) => null; //# 37: continued
-  method38(dynamic a) => null; //# 38: continued
-  method39(covariant dynamic a) => null; //# 39: continued
-}
-
-abstract class I {
-  method5() => null; //# 05: compile-time error
-  method31(int a) => null; //# 31: compile-time error
-  method32(int a) => null; //# 32: compile-time error
-  method33(num a) => null; //# 33: compile-time error
-}
-
-abstract class J {
-  method31(num a) => null; //# 31: continued
-  method32(double a) => null; //# 32: continued
-  method33(int a) => null; //# 33: continued
-}
-
-class Class extends B implements I, J {
-  method1() => null; //# 01: continued
-  method2(b) => null; //# 02: continued
-  method3(b, a, d, c) => null; //# 03: continued
-  method4(a) => null; //# 04: continued
-  method5(a) => null; //# 05: continued
-  method6(a, b, c, d) => null; //# 06: continued
-  method7([a]) => null; //# 07: continued
-  method8([b, a]) => null; //# 08: continued
-  method9([b, d, a, c]) => null; //# 09: continued
-  method10([a]) => null; //# 10: continued
-  method11() => null; //# 11: continued
-  method12(a) => null; //# 12: continued
-  method13([a]) => null; //# 13: continued
-  method14([a, b, c, d]) => null; //# 14: continued
-  method15({a}) => null; //# 15: continued
-  method16({b, a}) => null; //# 16: continued
-  method17({b, c, a, d}) => null; //# 17: continued
-  method18(e, {b, c, a, d}) => null; //# 18: continued
-  method19() => null; //# 19: continued
-  method20({b}) => null; //# 20: continued
-  method21({a, e, d, c}) => null; //# 21: continued
-
-  method22(int a) => null; //# 22: continued
-  method23(num a) => null; //# 23: continued
-  method24() => null; //# 24: continued
-  void method25() {} //# 25: continued
-  int method26() => null; //# 26: continued
-  void method27() {} //# 27: continued
-  method28(double a) => null; //# 28: continued
-  method29(String a) => null; //# 29: continued
-  method30(String a) => null; //# 30: continued
-  method36(int a) => null; //# 36: continued
-  method37(int a) => null; //# 37: continued
-  method38(int a) => null; //# 38: continued
-  method39(String a) => null; //# 39: continued
-}
-
-class SubClass extends Class {
-  method31(double a) => null; //# 31: continued
-  method32(String a) => null; //# 32: continued
-  method33(double a) => null; //# 33: continued
-}
-
-main() {
-  new SubClass();
-}
diff --git a/tests/language_2/override/inheritance_mixed_test.dart b/tests/language_2/override/inheritance_mixed_test.dart
deleted file mode 100644
index bd82c291a5a..00000000000
--- a/tests/language_2/override/inheritance_mixed_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  var member1; //# 01: compile-time error
-  member2() {} //# 02: compile-time error
-  get member3 => null; //# 03: compile-time error
-  member4() {} //# 04: compile-time error
-}
-
-abstract class I {
-  var member5; //# 05: ok
-  var member6; //# 06: compile-time error
-  get member7; //# 07: compile-time error
-  get member8; //# 08: compile-time error
-  get member9; //# 09: compile-time error
-}
-
-abstract class J {
-  get member5; //# 05: continued
-  member6() {} //# 06: continued
-  member7() {} //# 07: continued
-  member8() {} //# 08: continued
-  member9() {} //# 09: continued
-}
-
-abstract class B extends A implements I, J {}
-
-class Class extends B {
-  member1() {} //# 01: continued
-  var member2; //# 02: continued
-  member3() {} //# 03: continued
-  get member4 => null; //# 04: continued
-  var member5; //# 05: continued
-  member8() {} //# 08: continued
-  get member9 => null; //# 09: continued
-}
-
-main() {
-  new Class();
-}
diff --git a/tests/language_2/override/inheritance_no_such_method_test.dart b/tests/language_2/override/inheritance_no_such_method_test.dart
deleted file mode 100644
index 0a60b22c6be..00000000000
--- a/tests/language_2/override/inheritance_no_such_method_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test use of noSuchMethod in relation to abstract methods in
-// concrete classes.
-
-abstract class A {
-  method6(); //# 06: compile-time error
-  method7(); //# 07: compile-time error
-  method8(); //# 08: ok
-}
-
-abstract class I {
-  method9(); //# 09: compile-time error
-  method10(); //# 10: compile-time error
-  method11(); //# 11: ok
-}
-
-class Class1 extends A implements I {
-  method1(); //# 01: compile-time error
-
-  noSuchMethod(_) => null; //# 03: ok
-  method3(); //# 03: continued
-
-  noSuchMethod(_, [__]) => null; //# 04: ok
-  method4(); //# 04: continued
-
-  noSuchMethod(_); //# 05: compile-time error
-  method5(); //# 05: continued
-
-  noSuchMethod(_) => null; //# 08: continued
-
-  noSuchMethod(_) => null; //# 11: continued
-}
-
-class B {
-  method12(); //# 12: compile-time error
-
-  noSuchMethod(_) => null; //# 13: ok
-  method13(); //# 13: continued
-}
-
-class Class2 extends B {}
-
-main() {
-  new Class1();
-  new Class2();
-}
diff --git a/tests/language_2/override/inheritance_setter_test.dart b/tests/language_2/override/inheritance_setter_test.dart
deleted file mode 100644
index a3c7a03052c..00000000000
--- a/tests/language_2/override/inheritance_setter_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-
-// @dart = 2.9
-main() {
-  new C();
-}
-
-class A {
-  void set setter1(num x) {} //# 001: compile-time error
-  void set setter2(num x) {} //# 002: compile-time error
-  void set setter3(num x) {} //# 003: ok
-  void set setter4(num x) {} //# 004: compile-time error
-  void set setter5(num x) {} //# 005: ok
-  void set setter6(num x) {} //# 006: compile-time error
-  void set setter7(num x) {} //# 007: ok
-}
-
-class B extends A {
-  void set setter1(covariant dynamic x) {} //# 001: continued
-  void set setter2(int x) {} //# 002: continued
-  void set setter3(covariant dynamic x) {} //# 003: continued
-  void set setter4(dynamic x) {} //# 004: continued
-  void set setter5(covariant dynamic x) {} //# 005: continued
-  covariant dynamic setter6; //# 006: continued
-  covariant dynamic setter7; //# 007: continued
-}
-
-class C extends B {
-  void set setter1(String x) {} //# 001: continued
-  void set setter3(num x) {} //# 003: continued
-  void set setter4(int x) {} //# 004: continued
-  void set setter5(int x) {} //# 005: continued
-  void set setter6(String x) {} //# 006: continued
-  void set setter7(int x) {} //# 007: continued
-}
diff --git a/tests/language_2/override/method_with_field_runtime_test.dart b/tests/language_2/override/method_with_field_runtime_test.dart
deleted file mode 100644
index 62056187af5..00000000000
--- a/tests/language_2/override/method_with_field_runtime_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-// Test overriding a method with a field.
-
-class Super {
-  Super() : super();
-
-  instanceMethod() => 42;
-}
-
-class Sub extends Super {
-  Sub() : super();
-
-
-
-  superInstanceMethod() => super.instanceMethod();
-}
-
-main() {
-  var s = new Sub();
-  Super sup = s;
-  Sub sub = s;
-  print(s.instanceMethod);
-  Expect.equals(42, s.superInstanceMethod());
-
-  Expect.equals(42, sub.superInstanceMethod());
-}
diff --git a/tests/language_2/override/method_with_field_test.dart b/tests/language_2/override/method_with_field_test.dart
deleted file mode 100644
index 169e4111841..00000000000
--- a/tests/language_2/override/method_with_field_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test overriding a method with a field.
-
-class Super {
-  Super() : super();
-
-  instanceMethod() => 42;
-}
-
-class Sub extends Super {
-  Sub() : super();
-
-  var instanceMethod = 87;
-  //  ^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_FIELD_AND_METHOD
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-
-  superInstanceMethod() => super.instanceMethod();
-}
-
-main() {
-  var s = new Sub();
-  Super sup = s;
-  Sub sub = s;
-  print(s.instanceMethod);
-  Expect.equals(42, s.superInstanceMethod());
-  Expect.equals(42, sup.superInstanceMethod());
-  //                    ^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_METHOD
-  // [cfe] The method 'superInstanceMethod' isn't defined for the class 'Super'.
-  Expect.equals(42, sub.superInstanceMethod());
-}
diff --git a/tests/language_2/parameter/bad_named2_runtime_test.dart b/tests/language_2/parameter/bad_named2_runtime_test.dart
deleted file mode 100644
index 22780ef14dc..00000000000
--- a/tests/language_2/parameter/bad_named2_runtime_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing bad named parameters.
-
-class BadNamedParameters2Test {
-  int foo(int a) {
-    // Although no optional named parameters are declared, we must check that
-    // no named arguments are passed in, either here or in the resolving stub.
-    return a;
-  }
-}
-
-main() {
-  BadNamedParameters2Test np = new BadNamedParameters2Test();
-
-  // No formal parameter named b.
-
-}
diff --git a/tests/language_2/parameter/bad_named2_test.dart b/tests/language_2/parameter/bad_named2_test.dart
deleted file mode 100644
index 0a32d4b819c..00000000000
--- a/tests/language_2/parameter/bad_named2_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing bad named parameters.
-
-// @dart = 2.9
-
-class BadNamedParameters2Test {
-  int foo(int a) {
-    // Although no optional named parameters are declared, we must check that
-    // no named arguments are passed in, either here or in the resolving stub.
-    return a;
-  }
-}
-
-main() {
-  BadNamedParameters2Test np = new BadNamedParameters2Test();
-
-  // No formal parameter named b.
-  np.foo(b: 25);
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.NOT_ENOUGH_POSITIONAL_ARGUMENTS
-  //    ^^^^^^^
-  // [cfe] Too few positional arguments: 1 required, 0 given.
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_NAMED_PARAMETER
-}
diff --git a/tests/language_2/parameter/bad_named_parameters_test.dart b/tests/language_2/parameter/bad_named_parameters_test.dart
deleted file mode 100644
index 05c4859a29c..00000000000
--- a/tests/language_2/parameter/bad_named_parameters_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing bad named parameters.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class BadNamedParametersTest {
-  int f42(int a, {int b: 20, int c: 30}) {
-    return 100 * (100 * a + b) + c;
-  }
-
-  int f52(int a, {int b: 20, int c, int d: 40}) {
-    return 100 * (100 * (100 * a + b) + (c == null ? 0 : c)) + d;
-  }
-}
-
-main() {
-  BadNamedParametersTest np = new BadNamedParametersTest();
-
-  // Parameter b passed twice.
-  np.f42(10, 25, b: 25);
-  //         ^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS_COULD_BE_NAMED
-  //    ^^^^^^^^^^^^^^^
-  // [cfe] Too many positional arguments: 1 allowed, but 2 found.
-
-  // Parameter x does not exist.
-  np.f42(10, 25, x: 99);
-  //         ^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS_COULD_BE_NAMED
-  //    ^^^^^^^^^^^^^^^
-  // [cfe] Too many positional arguments: 1 allowed, but 2 found.
-  //             ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_NAMED_PARAMETER
-
-  // Parameter b1 does not exist.
-  np.f52(10, b: 25, b1: 99, c: 35);
-  //                ^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_NAMED_PARAMETER
-  // [cfe] No named parameter with the name 'b1'.
-
-  // Too many parameters.
-  np.f42(10, 20, 30, 40);
-  //         ^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS_COULD_BE_NAMED
-  //    ^^^^^^^^^^^^^^^^
-  // [cfe] Too many positional arguments: 1 allowed, but 4 found.
-
-  // Too few parameters.
-  np.f42(b: 25);
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.NOT_ENOUGH_POSITIONAL_ARGUMENTS
-  //    ^^^^^^^
-  // [cfe] Too few positional arguments: 1 required, 0 given.
-}
diff --git a/tests/language_2/parameter/bad_named_runtime_test.dart b/tests/language_2/parameter/bad_named_runtime_test.dart
deleted file mode 100644
index 0eaedcdd555..00000000000
--- a/tests/language_2/parameter/bad_named_runtime_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing bad named parameters.
-
-import "package:expect/expect.dart";
-
-class BadNamedParametersTest {
-  int f42(int a, {int b: 20, int c: 30}) {
-    return 100 * (100 * a + b) + c;
-  }
-
-  int f52(int a, {int b: 20, int c, int d: 40}) {
-    return 100 * (100 * (100 * a + b) + (c == null ? 0 : c)) + d;
-  }
-}
-
-main() {
-  BadNamedParametersTest np = new BadNamedParametersTest();
-
-  // Parameter b passed twice.
-
-
-  // Parameter x does not exist.
-
-
-  // Parameter b1 does not exist.
-
-
-  // Too many parameters.
-
-
-  // Too few parameters.
-
-}
diff --git a/tests/language_2/parameter/default_test.dart b/tests/language_2/parameter/default_test.dart
deleted file mode 100644
index 4dad097fad9..00000000000
--- a/tests/language_2/parameter/default_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class C {
-  foo(a
-      : 1 // //# 01: syntax error
-      = 1 // //# 02: syntax error
-      ) {
-    print(a);
-  }
-
-  static bar(a
-      : 1 // //# 03: syntax error
-      = 1 // //# 04: syntax error
-      ) {
-    print(a);
-  }
-}
-
-baz(a
-    : 1 // //# 05: syntax error
-    = 1 // //# 06: syntax error
-    ) {
-  print(a);
-}
-
-main() {
-  foo(a
-      : 1 // //# 07: syntax error
-      = 1 // //# 08: syntax error
-      ) {
-    print(a);
-  }
-
-  foo(1);
-
-  new C().foo(2);
-
-  C.bar(3);
-
-  baz(4);
-}
diff --git a/tests/language_2/parameter/initializer1_test.dart b/tests/language_2/parameter/initializer1_test.dart
deleted file mode 100644
index ee2d304552f..00000000000
--- a/tests/language_2/parameter/initializer1_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Fails because this.x parameter is used in a function.
-
-class Foo {
-  var x;
-  foo(this.x) {}
-  //  ^^^^
-  // [analyzer] SYNTACTIC_ERROR.FIELD_INITIALIZER_OUTSIDE_CONSTRUCTOR
-  // [cfe] Field formal parameters can only be used in a constructor.
-  //  ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.FIELD_INITIALIZER_OUTSIDE_CONSTRUCTOR
-}
-
-main() {
-  Foo().foo(2);
-}
diff --git a/tests/language_2/parameter/initializer2_test.dart b/tests/language_2/parameter/initializer2_test.dart
deleted file mode 100644
index 0a41accf4fb..00000000000
--- a/tests/language_2/parameter/initializer2_test.dart
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test Parameter Initializer.
-
-class ParameterInitializer2Test {
-  static testMain() {
-    var a = new A(123);
-    Expect.equals(123, a.x);
-
-    var b = new B(123);
-    Expect.equals(123, b.x);
-
-    var c = new C(123);
-    Expect.equals(123, c.x);
-
-    var d = new D(123);
-    Expect.equals(123, d.x);
-
-    var e = new E(1);
-    Expect.equals(4, e.x);
-
-    var f = new F(1, 2, 3, 4);
-    Expect.equals(4, f.z);
-  }
-}
-
-// untyped
-class A {
-  A(this.x) {}
-  int x;
-}
-
-// typed
-class B {
-  B(int this.x) {}
-  int x;
-}
-
-// const typed
-class C {
-  const C(int this.x);
-  final int x;
-}
-
-// const untyped
-class D {
-  const D(this.x);
-  final x;
-}
-
-// make sure this.<X> references work properly in the constructor scope.
-class E {
-  E(this.x) {
-    var myVar = this.x * 2;
-    this.x = myVar + 1;
-    x = myVar + 2;
-    var foo = x + 1;
-  }
-  int x;
-}
-
-// mixed
-class F {
-  F(x, this.y_, int w, int this.z)
-      : x_ = x,
-        w_ = w {}
-  F.foobar(this.z, int this.x_, int this.az_) {}
-  int x_;
-  int y_;
-  int w_;
-  int z;
-  int az_;
-}
-
-main() {
-  ParameterInitializer2Test.testMain();
-}
diff --git a/tests/language_2/parameter/initializer3_test.dart b/tests/language_2/parameter/initializer3_test.dart
deleted file mode 100644
index 22db7071787..00000000000
--- a/tests/language_2/parameter/initializer3_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Fails because this.x parameter is used in a factory.
-
-class Foo {
-  var x;
-  factory Foo(this.x) => new Foo.named();
-  //          ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.FIELD_INITIALIZER_FACTORY_CONSTRUCTOR
-  // [cfe] Field formal parameters can only be used in a constructor.
-  Foo.named() {}
-}
-
-main() {
-  Foo(2);
-}
diff --git a/tests/language_2/parameter/initializer4_test.dart b/tests/language_2/parameter/initializer4_test.dart
deleted file mode 100644
index ff49426b87b..00000000000
--- a/tests/language_2/parameter/initializer4_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Fails because this.x parameter is used in a static function.
-
-class Foo {
-  var x;
-  static foo(this.x) {}
-  //         ^^^^
-  // [analyzer] SYNTACTIC_ERROR.FIELD_INITIALIZER_OUTSIDE_CONSTRUCTOR
-  // [cfe] Field formal parameters can only be used in a constructor.
-  //         ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.FIELD_INITIALIZER_OUTSIDE_CONSTRUCTOR
-}
-
-main() {
-  Foo.foo(1);
-}
diff --git a/tests/language_2/parameter/initializer5_test.dart b/tests/language_2/parameter/initializer5_test.dart
deleted file mode 100644
index d0d500b30d2..00000000000
--- a/tests/language_2/parameter/initializer5_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Use the this.x parameter in an initializer expression.
-
-class Foo {
-  var x, y;
-  Foo(this.x) : y = x {}
-}
-
-main() {
-  new Foo(12);
-}
diff --git a/tests/language_2/parameter/initializer6_test.dart b/tests/language_2/parameter/initializer6_test.dart
deleted file mode 100644
index 0f3812b5d38..00000000000
--- a/tests/language_2/parameter/initializer6_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-/// It is a compile-time error if a named formal parameter begins with an '_'.
-
-class Foo {
-  num _y;
-  Foo.private({this._y: 77}) {}
-  //                ^^
-  // [analyzer] COMPILE_TIME_ERROR.PRIVATE_OPTIONAL_PARAMETER
-  //                ^
-  // [cfe] An optional named parameter can't start with '_'.
-}
-
-main() {
-  Foo.private(_y: 222);
-}
diff --git a/tests/language_2/parameter/initializer7_test.dart b/tests/language_2/parameter/initializer7_test.dart
deleted file mode 100644
index ee253d1f907..00000000000
--- a/tests/language_2/parameter/initializer7_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Fails because this.x parameter is used in a setter.
-
-class Foo {
-  var x;
-  set y(this.x) {}
-  //    ^^^^
-  // [analyzer] SYNTACTIC_ERROR.FIELD_INITIALIZER_OUTSIDE_CONSTRUCTOR
-  // [cfe] Field formal parameters can only be used in a constructor.
-  //    ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.FIELD_INITIALIZER_OUTSIDE_CONSTRUCTOR
-}
-
-main() {
-  Foo().y = 2;
-}
diff --git a/tests/language_2/parameter/initializer_test.dart b/tests/language_2/parameter/initializer_test.dart
deleted file mode 100644
index 3a558e30c49..00000000000
--- a/tests/language_2/parameter/initializer_test.dart
+++ /dev/null
@@ -1,84 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class ParameterInitializerTest {
-  static testMain() {
-    var obj = new Foo.untyped(1);
-    Expect.equals(1, obj.x);
-
-    obj = new Foo.subtype(7);
-    Expect.equals(7, obj.x);
-
-    obj = new Foo.optional(111);
-    Expect.equals(111, obj.x);
-
-    obj = new Foo.optional();
-    Expect.equals(5, obj.x);
-
-    obj = new Foo(1);
-    Expect.equals(2, obj.x);
-
-    obj = new SubFoo(42);
-    Expect.equals(1, obj.x);
-
-    obj = new SubSubFoo(42);
-    Expect.equals(1, obj.x);
-  }
-}
-
-class Foo {
-  Foo(num this.x) {
-    // Reference to x must resolve to the field.
-    x++;
-    Expect.equals(this.x, x);
-  }
-
-  Foo.untyped(this.x) {}
-  Foo.subtype(int this.x) {}
-  Foo.optional([this.x = 5]) {}
-
-  num x;
-}
-
-class SubFoo extends Foo {
-  SubFoo(num y)
-      : x_ = 0,
-        super(y) {
-    // Subfoo.setter of x has been invoked in the Foo constructor.
-    Expect.equals(x, 1);
-    Expect.equals(x_, 1);
-
-    // The super.x will resolved to the field in Foo.
-    Expect.equals(super.x, y);
-  }
-
-  get x {
-    return x_;
-  }
-
-  set x(num val) {
-    x_ = val;
-  }
-
-  num x_;
-}
-
-class SubSubFoo extends SubFoo {
-  SubSubFoo(num y) : super(y) {
-    // Subfoo.setter of x has been invoked in the Foo constructor.
-    Expect.equals(x, 1);
-    Expect.equals(x_, 1);
-
-    // There is no way to get to the field in Foo.
-    Expect.equals(super.x, 1);
-  }
-}
-
-main() {
-  ParameterInitializerTest.testMain();
-}
diff --git a/tests/language_2/parameter/metadata_test.dart b/tests/language_2/parameter/metadata_test.dart
deleted file mode 100644
index 8ad871bec58..00000000000
--- a/tests/language_2/parameter/metadata_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that metadata annotations can be handled on nested parameters.
-
-test(
-     @deprecated //   //# 01: ok
-    f(
-       @deprecated // //# 02: ok
-        a,
-       @deprecated // //# 03: ok
-        g(
-         @deprecated //# 04: ok
-            b))) {}
-
-main() {
-  test(null);
-}
diff --git a/tests/language_2/parameter/name_conflict_test.dart b/tests/language_2/parameter/name_conflict_test.dart
deleted file mode 100644
index 8e5764f7486..00000000000
--- a/tests/language_2/parameter/name_conflict_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-foo(t0) {
-  var a = t0, b = baz(), c = bar();
-  if (t0 == 'foo') {
-    // Force a SSA swapping problem where dart2js used to use 't0' as
-    // a temporary variable.
-    var tmp = c;
-    c = b;
-    b = tmp;
-  }
-
-  Expect.equals('foo', a);
-  Expect.equals('foo', t0);
-  Expect.equals('bar', b);
-  Expect.equals('baz', c);
-}
-
-bar() => 'bar';
-baz() => 'baz';
-
-main() {
-  foo('foo');
-}
diff --git a/tests/language_2/parameter/named2_test.dart b/tests/language_2/parameter/named2_test.dart
deleted file mode 100644
index c58c842023e..00000000000
--- a/tests/language_2/parameter/named2_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing named parameters.
-// You may not provide the same parameter as both a positional and a named argument.
-
-// @dart = 2.9
-
-int test(int a, [int b]) {
-  return a;
-}
-
-main() {
-  // Parameter b passed twice, as positional and named.
-  test(10, 25, b: 26);
-  //           ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_NAMED_PARAMETER
-  // [cfe] No named parameter with the name 'b'.
-}
diff --git a/tests/language_2/parameter/named3_test.dart b/tests/language_2/parameter/named3_test.dart
deleted file mode 100644
index 20f340ec827..00000000000
--- a/tests/language_2/parameter/named3_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing named parameters.
-// Specifying named argument for not existing named parameter is run time error.
-
-// @dart = 2.9
-
-int test(int a, [int b]) {
-  return a;
-}
-
-main() {
-  // 1 positional arg, as expected. Param x does not exist.
-  test(10, x: 99);
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_NAMED_PARAMETER
-  // [cfe] No named parameter with the name 'x'.
-}
diff --git a/tests/language_2/parameter/named4_test.dart b/tests/language_2/parameter/named4_test.dart
deleted file mode 100644
index a107cef33f3..00000000000
--- a/tests/language_2/parameter/named4_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing named parameters.
-// Specifying named argument for not existing named parameter is run time error.
-
-// @dart = 2.9
-
-// This test is very similar to NamedParameters3Test, but exercises a
-// different corner case in the frog compiler. frog wasn't detecting unused
-// named arguments when no other arguments were expected. So, this test
-// purposely passes the exact number of positional parameters.
-
-int test(int a) {
-  return a;
-}
-
-main() {
-  // 1 positional arg, as expected. Param x does not exist.
-  test(10, x: 99);
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_NAMED_PARAMETER
-  // [cfe] No named parameter with the name 'x'.
-}
diff --git a/tests/language_2/parameter/named_aggregated_runtime_test.dart b/tests/language_2/parameter/named_aggregated_runtime_test.dart
deleted file mode 100644
index 8c7110527fc..00000000000
--- a/tests/language_2/parameter/named_aggregated_runtime_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing named parameters.
-
-class TypeTester<T> {}
-
-// Expect compile-time error as no default values are allowed
-// in closure type definitions.
-typedef void Callback([String msg
-
-]);
-
-class NamedParametersAggregatedTests {
-  static int F31(int a, {int b: 20, int c: 30}) {
-    return 100 * (100 * a + b) + c;
-  }
-
-  static int f_missing_comma(a
-
-  ) =>
-  a;
-
-  var _handler = null;
-
-  // Expect compile-time error as no default values
-  // are allowed in closure type.
-  void InstallCallback(
-      void cb({String msg
-
-      })) {
-    _handler = cb;
-  }
-}
-
-main() {
-  // Expect compile-time error due to missing comma in function definition.
-  NamedParametersAggregatedTests.f_missing_comma(10
-
-  );
-
-  // Expect compile-time error due to duplicate named argument.
-  NamedParametersAggregatedTests.F31(10, b: 25
-
-
-  );
-
-  // Expect compile-time error due to missing positional argument.
-
-
-  new TypeTester<Callback>();
-
-  (new NamedParametersAggregatedTests()).InstallCallback(null);
-}
diff --git a/tests/language_2/parameter/named_aggregated_test.dart b/tests/language_2/parameter/named_aggregated_test.dart
deleted file mode 100644
index b7150b7f6ae..00000000000
--- a/tests/language_2/parameter/named_aggregated_test.dart
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing named parameters.
-
-// @dart = 2.9
-
-class TypeTester<T> {}
-
-// Expect compile-time error as no default values are allowed
-// in closure type definitions.
-typedef void Callback([String msg = ""]);
-//                                ^
-// [analyzer] SYNTACTIC_ERROR.DEFAULT_VALUE_IN_FUNCTION_TYPE
-// [cfe] Can't have a default value in a function type.
-
-class NamedParametersAggregatedTests {
-  static int F31(int a, {int b: 20, int c: 30}) {
-    return 100 * (100 * a + b) + c;
-  }
-
-  static int f_missing_comma(a [b = 42]) => a;
-  //                           ^
-  // [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-  // [cfe] Expected ')' before this.
-
-  var _handler = null;
-
-  // Expect compile-time error as no default values
-  // are allowed in closure type.
-  void InstallCallback(void cb({String msg : null})) {
-  //                                       ^
-  // [analyzer] SYNTACTIC_ERROR.DEFAULT_VALUE_IN_FUNCTION_TYPE
-  // [cfe] Can't have a default value in a function type.
-    _handler = cb;
-  }
-}
-
-main() {
-  // Expect compile-time error due to missing comma in function definition.
-  NamedParametersAggregatedTests.f_missing_comma(10, 25);
-  //                                                 ^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS
-  //                                            ^^^^^^^^
-  // [cfe] Too many positional arguments: 1 allowed, but 2 found.
-
-  // Expect compile-time error due to duplicate named argument.
-  NamedParametersAggregatedTests.F31(10, b: 25, b:35);
-  //                                            ^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_NAMED_ARGUMENT
-  // [cfe] Duplicated named argument 'b'.
-
-  // Expect compile-time error due to missing positional argument.
-  NamedParametersAggregatedTests.F31(b: 25, c: 35);
-  //                                 ^
-  // [analyzer] COMPILE_TIME_ERROR.NOT_ENOUGH_POSITIONAL_ARGUMENTS
-  //                                ^^^^^^^^^^^^^^
-  // [cfe] Too few positional arguments: 1 required, 0 given.
-
-  new TypeTester<Callback>();
-
-  (new NamedParametersAggregatedTests()).InstallCallback(null);
-}
diff --git a/tests/language_2/parameter/named_clash_test.dart b/tests/language_2/parameter/named_clash_test.dart
deleted file mode 100644
index 2ec239909a4..00000000000
--- a/tests/language_2/parameter/named_clash_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class Foo {
-  m({a, b, c}) {
-    try {} catch (e) {} // no inline
-    return 'Foo $a $b $c';
-  }
-}
-
-class Bar {
-  m(z, {a$b, c}) {
-    try {} catch (e) {} // no inline
-    var ab = a$b;
-    return 'Bar $z $ab $c';
-  }
-}
-
-inscrutable(xs, i) => i == 0 ? xs[0] : inscrutable(xs.sublist(1), i - 1);
-
-main() {
-  var list = [new Foo(), new Bar()];
-  var foo = inscrutable(list, 0);
-  var bar = inscrutable(list, 1);
-
-  Expect.equals(r'Foo a b c', foo.m(a: 'a', b: 'b', c: 'c'));
-  Expect.equals(r'Bar z a$b c', bar.m('z', a$b: r'a$b', c: 'c'));
-
-  Expect.throwsNoSuchMethodError(() => foo.m('z', a$b: r'a$b', c: 'c'));
-  Expect.throwsNoSuchMethodError(() => bar.m(a: 'a', b: 'b', c: 'c'));
-}
diff --git a/tests/language_2/parameter/named_count_test.dart b/tests/language_2/parameter/named_count_test.dart
deleted file mode 100644
index 0000fc1d229..00000000000
--- a/tests/language_2/parameter/named_count_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test for named parameter called 'count'.
-
-class TestClass {
-  TestClass();
-
-  method([count]) => count;
-
-  static staticMethod([count]) => count;
-}
-
-globalMethod([count]) => count;
-
-main() {
-  var obj = new TestClass();
-
-  Expect.equals(null, obj.method());
-  Expect.equals(0, obj.method(0));
-  Expect.equals("", obj.method(""));
-
-  Expect.equals(null, TestClass.staticMethod());
-  Expect.equals(true, TestClass.staticMethod(true));
-  Expect.equals(false, TestClass.staticMethod(false));
-
-  Expect.equals(null, globalMethod());
-  Expect.equals(true, globalMethod(true));
-  Expect.equals(false, globalMethod(false));
-}
diff --git a/tests/language_2/parameter/named_default_eq_runtime_test.dart b/tests/language_2/parameter/named_default_eq_runtime_test.dart
deleted file mode 100644
index a78cae63c21..00000000000
--- a/tests/language_2/parameter/named_default_eq_runtime_test.dart
+++ /dev/null
@@ -1,106 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Check that both `=` and `:` are allowed for named parameters.
-
-import "package:expect/expect.dart";
-
-// Default values are not allowed on typedefs.
-
-
-typedef functype({x, y, z});
-
-int topF({x = 3, y: 5, z}) => x * y * (z ?? 2);
-
-class A {
-  int x;
-  int y;
-  int z;
-  A({this.x = 3, this.y: 5, z}) : z = z ?? 2;
-  A.redirect({int x = 3, int y: 5, int z}) : this(x: x, y: y, z: z);
-  factory A.factory({int x = 3, int y: 5, int z}) =>
-      new A(x: x, y: y, z: z ?? 2);
-  factory A.redirectFactory({int x, int y, int z}) = A;
-
-  // Default values are not allowed on redirecting factory constructors.
-
-
-
-  int get value => x * y * z;
-
-  static int staticF({x = 3, y: 5, z}) => x * y * (z ?? 2);
-  int instanceF({x = 3, y: 5, z}) => x * y * (z ?? 2);
-}
-
-main() {
-  // Reference the type, or dart2js won't see that the declaration is invalid
-
-
-  var a = new A();
-
-  int local({x = 3, y: 5, z}) => x * y * (z ?? 2);
-  var expr = ({x = 3, y: 5, z}) => x * y * (z ?? 2);
-  var tearOff = a.instanceF;
-
-  test(function) {
-    Expect.equals(30, function());
-    Expect.equals(70, function(x: 7));
-    Expect.equals(42, function(y: 7));
-    Expect.equals(28, function(x: 7, y: 2));
-    Expect.equals(15, function(z: 1));
-    Expect.equals(21, function(y: 7, z: 1));
-    Expect.equals(35, function(x: 7, z: 1));
-    Expect.equals(14, function(x: 7, y: 2, z: 1));
-    Expect.isTrue(function is functype);
-  }
-
-  test(topF);
-  test(A.staticF);
-  test(a.instanceF);
-  test(local);
-  test(expr);
-  test(tearOff);
-
-  // Can't tear off constructors.
-  Expect.equals(30, new A().value);
-  Expect.equals(70, new A(x: 7).value);
-  Expect.equals(42, new A(y: 7).value);
-  Expect.equals(28, new A(x: 7, y: 2).value);
-  Expect.equals(15, new A(z: 1).value);
-  Expect.equals(21, new A(y: 7, z: 1).value);
-  Expect.equals(35, new A(x: 7, z: 1).value);
-  Expect.equals(14, new A(x: 7, y: 2, z: 1).value);
-
-  Expect.equals(30, new A.redirect().value);
-  Expect.equals(70, new A.redirect(x: 7).value);
-  Expect.equals(42, new A.redirect(y: 7).value);
-  Expect.equals(28, new A.redirect(x: 7, y: 2).value);
-  Expect.equals(15, new A.redirect(z: 1).value);
-  Expect.equals(21, new A.redirect(y: 7, z: 1).value);
-  Expect.equals(35, new A.redirect(x: 7, z: 1).value);
-  Expect.equals(14, new A.redirect(x: 7, y: 2, z: 1).value);
-
-  Expect.equals(30, new A.factory().value);
-  Expect.equals(70, new A.factory(x: 7).value);
-  Expect.equals(42, new A.factory(y: 7).value);
-  Expect.equals(28, new A.factory(x: 7, y: 2).value);
-  Expect.equals(15, new A.factory(z: 1).value);
-  Expect.equals(21, new A.factory(y: 7, z: 1).value);
-  Expect.equals(35, new A.factory(x: 7, z: 1).value);
-  Expect.equals(14, new A.factory(x: 7, y: 2, z: 1).value);
-
-  Expect.equals(30, new A.redirectFactory().value);
-  Expect.equals(70, new A.redirectFactory(x: 7).value);
-  Expect.equals(42, new A.redirectFactory(y: 7).value);
-  Expect.equals(28, new A.redirectFactory(x: 7, y: 2).value);
-  Expect.equals(15, new A.redirectFactory(z: 1).value);
-  Expect.equals(21, new A.redirectFactory(y: 7, z: 1).value);
-  Expect.equals(35, new A.redirectFactory(x: 7, z: 1).value);
-  Expect.equals(14, new A.redirectFactory(x: 7, y: 2, z: 1).value);
-}
diff --git a/tests/language_2/parameter/named_default_eq_test.dart b/tests/language_2/parameter/named_default_eq_test.dart
deleted file mode 100644
index 48846667714..00000000000
--- a/tests/language_2/parameter/named_default_eq_test.dart
+++ /dev/null
@@ -1,110 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that both `=` and `:` are allowed for named parameters.
-
-import "package:expect/expect.dart";
-
-// Default values are not allowed on typedefs.
-typedef F1({x = 3, y});
-//            ^
-// [analyzer] SYNTACTIC_ERROR.DEFAULT_VALUE_IN_FUNCTION_TYPE
-// [cfe] Can't have a default value in a function type.
-
-typedef functype({x, y, z});
-
-int topF({x = 3, y: 5, z}) => x * y * (z ?? 2);
-
-class A {
-  int x;
-  int y;
-  int z;
-  A({this.x = 3, this.y: 5, z}) : z = z ?? 2;
-  A.redirect({int x = 3, int y: 5, int z}) : this(x: x, y: y, z: z);
-  factory A.factory({int x = 3, int y: 5, int z}) =>
-      new A(x: x, y: y, z: z ?? 2);
-  factory A.redirectFactory({int x, int y, int z}) = A;
-
-  // Default values are not allowed on redirecting factory constructors.
-  factory A.badRedirectFactory({int x = 3, int y}) =
-  //                                ^
-  // [analyzer] COMPILE_TIME_ERROR.DEFAULT_VALUE_IN_REDIRECTING_FACTORY_CONSTRUCTOR
-  //                                    ^
-  // [cfe] Can't have a default value here because any default values of 'A' would be used instead.
-      A;
-
-  int get value => x * y * z;
-
-  static int staticF({x = 3, y: 5, z}) => x * y * (z ?? 2);
-  int instanceF({x = 3, y: 5, z}) => x * y * (z ?? 2);
-}
-
-main() {
-  // Reference the type, or dart2js won't see that the declaration is invalid
-  F1 _ = null;
-
-  var a = new A();
-
-  int local({x = 3, y: 5, z}) => x * y * (z ?? 2);
-  var expr = ({x = 3, y: 5, z}) => x * y * (z ?? 2);
-  var tearOff = a.instanceF;
-
-  test(function) {
-    Expect.equals(30, function());
-    Expect.equals(70, function(x: 7));
-    Expect.equals(42, function(y: 7));
-    Expect.equals(28, function(x: 7, y: 2));
-    Expect.equals(15, function(z: 1));
-    Expect.equals(21, function(y: 7, z: 1));
-    Expect.equals(35, function(x: 7, z: 1));
-    Expect.equals(14, function(x: 7, y: 2, z: 1));
-    Expect.isTrue(function is functype);
-  }
-
-  test(topF);
-  test(A.staticF);
-  test(a.instanceF);
-  test(local);
-  test(expr);
-  test(tearOff);
-
-  // Can't tear off constructors.
-  Expect.equals(30, new A().value);
-  Expect.equals(70, new A(x: 7).value);
-  Expect.equals(42, new A(y: 7).value);
-  Expect.equals(28, new A(x: 7, y: 2).value);
-  Expect.equals(15, new A(z: 1).value);
-  Expect.equals(21, new A(y: 7, z: 1).value);
-  Expect.equals(35, new A(x: 7, z: 1).value);
-  Expect.equals(14, new A(x: 7, y: 2, z: 1).value);
-
-  Expect.equals(30, new A.redirect().value);
-  Expect.equals(70, new A.redirect(x: 7).value);
-  Expect.equals(42, new A.redirect(y: 7).value);
-  Expect.equals(28, new A.redirect(x: 7, y: 2).value);
-  Expect.equals(15, new A.redirect(z: 1).value);
-  Expect.equals(21, new A.redirect(y: 7, z: 1).value);
-  Expect.equals(35, new A.redirect(x: 7, z: 1).value);
-  Expect.equals(14, new A.redirect(x: 7, y: 2, z: 1).value);
-
-  Expect.equals(30, new A.factory().value);
-  Expect.equals(70, new A.factory(x: 7).value);
-  Expect.equals(42, new A.factory(y: 7).value);
-  Expect.equals(28, new A.factory(x: 7, y: 2).value);
-  Expect.equals(15, new A.factory(z: 1).value);
-  Expect.equals(21, new A.factory(y: 7, z: 1).value);
-  Expect.equals(35, new A.factory(x: 7, z: 1).value);
-  Expect.equals(14, new A.factory(x: 7, y: 2, z: 1).value);
-
-  Expect.equals(30, new A.redirectFactory().value);
-  Expect.equals(70, new A.redirectFactory(x: 7).value);
-  Expect.equals(42, new A.redirectFactory(y: 7).value);
-  Expect.equals(28, new A.redirectFactory(x: 7, y: 2).value);
-  Expect.equals(15, new A.redirectFactory(z: 1).value);
-  Expect.equals(21, new A.redirectFactory(y: 7, z: 1).value);
-  Expect.equals(35, new A.redirectFactory(x: 7, z: 1).value);
-  Expect.equals(14, new A.redirectFactory(x: 7, y: 2, z: 1).value);
-}
diff --git a/tests/language_2/parameter/named_parameters_test.dart b/tests/language_2/parameter/named_parameters_test.dart
deleted file mode 100644
index 7f75468f0ec..00000000000
--- a/tests/language_2/parameter/named_parameters_test.dart
+++ /dev/null
@@ -1,147 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing named parameters.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class NamedParametersTest {
-  static int F00() {
-    return 0;
-  }
-
-  int f11() {
-    return 0;
-  }
-
-  static int F11(int a) {
-    return a;
-  }
-
-  int f22(int a) {
-    return a;
-  }
-
-  static int F10([int b = 20]) {
-    return b;
-  }
-
-  int f21([int b = 20]) {
-    return b;
-  }
-
-  static int F21(int a, [int b = 20]) {
-    return 100 * a + b;
-  }
-
-  int f32(int a, [int b = 20]) {
-    return 100 * a + b;
-  }
-
-  static int F31(int a, [int b = 20, int c = 30]) {
-    return 100 * (100 * a + b) + c;
-  }
-
-  int f42(int a, [int b = 20, int c = 30]) {
-    return 100 * (100 * a + b) + c;
-  }
-
-  static int F41(int a, [int b = 20, int c, int d = 40]) {
-    return 100 * (100 * (100 * a + b) + (c == null ? 0 : c)) + d;
-  }
-
-  int f52(int a, [int b = 20, int c, int d = 40]) {
-    return 100 * (100 * (100 * a + b) + (c == null ? 0 : c)) + d;
-  }
-
-  static testMain() {
-    NamedParametersTest np = new NamedParametersTest();
-    Expect.equals(0, F00());
-    Expect.equals(0, np.f11());
-    Expect.equals(10, F11(10));
-    Expect.equals(10, np.f22(10));
-    Expect.equals(20, F10());
-    Expect.equals(20, np.f21());
-    Expect.equals(20, F10(20));
-    Expect.equals(20, np.f21(20));
-    Expect.equals(20, F10(b:20));
-    //                    ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_NAMED_PARAMETER
-    // [cfe] No named parameter with the name 'b'.
-    Expect.equals(20, np.f21(b:20));
-    //                       ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_NAMED_PARAMETER
-    // [cfe] No named parameter with the name 'b'.
-    Expect.equals(1020, F21(10));
-    Expect.equals(1020, np.f32(10));
-    Expect.equals(1025, F21(10, 25));
-    Expect.equals(1025, np.f32(10, 25));
-    Expect.equals(1025, F21(10, b:25));
-    //                          ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_NAMED_PARAMETER
-    // [cfe] No named parameter with the name 'b'.
-    Expect.equals(1025, np.f32(10, b:25));
-    //                             ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_NAMED_PARAMETER
-    // [cfe] No named parameter with the name 'b'.
-    Expect.equals(102030, F31(10));
-    Expect.equals(102030, np.f42(10));
-    Expect.equals(102530, F31(10, 25));
-    Expect.equals(102530, np.f42(10, 25));
-    Expect.equals(102035, F31(10, c:35));
-    //                            ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_NAMED_PARAMETER
-    // [cfe] No named parameter with the name 'c'.
-    Expect.equals(102035, np.f42(10, c:35));
-    //                               ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_NAMED_PARAMETER
-    // [cfe] No named parameter with the name 'c'.
-    Expect.equals(102535, F31(10, 25, 35));
-    Expect.equals(102535, np.f42(10, 25, 35));
-    Expect.equals(102535, F31(10, 25, c:35));
-    //                                ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_NAMED_PARAMETER
-    // [cfe] No named parameter with the name 'c'.
-    Expect.equals(102535, np.f42(10, 25, c:35));
-    //                                   ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_NAMED_PARAMETER
-    // [cfe] No named parameter with the name 'c'.
-    Expect.equals(10200040, F41(10));
-    Expect.equals(10200040, np.f52(10));
-    Expect.equals(10203540, F41(10, c:35));
-    //                              ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_NAMED_PARAMETER
-    // [cfe] No named parameter with the name 'c'.
-    Expect.equals(10203540, np.f52(10, c:35));
-    //                                 ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_NAMED_PARAMETER
-    // [cfe] No named parameter with the name 'c'.
-  }
-}
-
-abstract class I {
-  factory I() = C;
-  int mul(int a, [int factor]);
-}
-
-class C implements I {
-  int mul(int a, [int factor = 10]) {
-    return a * factor;
-  }
-}
-
-hello(msg, to, {from}) => '${from} sent ${msg} to ${to}';
-message() => hello("gladiolas", "possums", from: "Edna");
-
-main() {
-  NamedParametersTest.testMain();
-  var i = new I();
-  Expect.equals(100, i.mul(10));
-  Expect.equals(1000, i.mul(10, 100));
-  var c = new C();
-  Expect.equals(100, c.mul(10));
-  Expect.equals(1000, c.mul(10, 100));
-  Expect.equals("Edna sent gladiolas to possums", message());
-}
diff --git a/tests/language_2/parameter/named_passing_false_test.dart b/tests/language_2/parameter/named_passing_false_test.dart
deleted file mode 100644
index 75c79bd42bb..00000000000
--- a/tests/language_2/parameter/named_passing_false_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test program for testing named parameters with 'false' passed as an
-// argument.
-
-class TestClass {
-  TestClass();
-
-  bool method([bool value]) => value;
-  bool method2({bool value}) => value;
-
-  static bool staticMethod([bool value]) => value;
-  static bool staticMethod2({bool value}) => value;
-}
-
-bool globalMethod([bool value]) => value;
-bool globalMethod2({bool value}) => value;
-
-main() {
-  var obj = new TestClass();
-
-  Expect.equals(null, obj.method());
-  Expect.equals(null, obj.method2());
-  Expect.equals(true, obj.method(true));
-  Expect.equals(true, obj.method2(value: true));
-  Expect.equals(false, obj.method(false));
-  Expect.equals(false, obj.method2(value: false));
-
-  Expect.equals(null, TestClass.staticMethod());
-  Expect.equals(null, TestClass.staticMethod2());
-  Expect.equals(true, TestClass.staticMethod(true));
-  Expect.equals(true, TestClass.staticMethod2(value: true));
-  Expect.equals(false, TestClass.staticMethod(false));
-  Expect.equals(false, TestClass.staticMethod2(value: false));
-
-  Expect.equals(null, globalMethod());
-  Expect.equals(null, globalMethod2());
-  Expect.equals(true, globalMethod(true));
-  Expect.equals(true, globalMethod2(value: true));
-  Expect.equals(false, globalMethod(false));
-  Expect.equals(false, globalMethod2(value: false));
-}
diff --git a/tests/language_2/parameter/named_passing_falsy_test.dart b/tests/language_2/parameter/named_passing_falsy_test.dart
deleted file mode 100644
index 7644fff2c3a..00000000000
--- a/tests/language_2/parameter/named_passing_falsy_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test program for testing named parameters with various values that might
-// be implemented as 'falsy' values in a JavaScript implementation.
-
-class TestClass {
-  TestClass();
-
-  method([value = 100]) => value;
-  method2({value: 100}) => value;
-
-  static staticMethod([value = 200]) => value;
-  static staticMethod2({value: 200}) => value;
-}
-
-globalMethod([value = 300]) => value;
-globalMethod2({value: 300}) => value;
-
-const testValues = const [0, 0.0, '', false, null];
-
-testFunction(f, f2) {
-  Expect.isTrue(f() >= 100);
-  for (var v in testValues) {
-    Expect.equals(v, f(v));
-    Expect.equals(v, f2(value: v));
-  }
-}
-
-main() {
-  var obj = new TestClass();
-
-  Expect.equals(100, obj.method());
-  Expect.equals(100, obj.method2());
-  Expect.equals(200, TestClass.staticMethod());
-  Expect.equals(200, TestClass.staticMethod2());
-  Expect.equals(300, globalMethod());
-  Expect.equals(300, globalMethod2());
-
-  for (var v in testValues) {
-    Expect.equals(v, obj.method(v));
-    Expect.equals(v, obj.method2(value: v));
-    Expect.equals(v, TestClass.staticMethod(v));
-    Expect.equals(v, TestClass.staticMethod2(value: v));
-    Expect.equals(v, globalMethod(v));
-    Expect.equals(v, globalMethod2(value: v));
-  }
-
-  // Test via indirect call.
-  testFunction(obj.method, obj.method2);
-  testFunction(TestClass.staticMethod, TestClass.staticMethod2);
-  testFunction(globalMethod, globalMethod2);
-}
diff --git a/tests/language_2/parameter/named_passing_null_test.dart b/tests/language_2/parameter/named_passing_null_test.dart
deleted file mode 100644
index d6ab9f22796..00000000000
--- a/tests/language_2/parameter/named_passing_null_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test program for testing named parameters with 'null' passed as an
-// argument.
-
-class TestClass {
-  TestClass();
-
-  num method([value = 100]) => value;
-  num method2({value: 100}) => value;
-
-  static num staticMethod([value = 200]) => value;
-  static num staticMethod2({value: 200}) => value;
-}
-
-num globalMethod([value = 300]) => value;
-num globalMethod2({value: 300}) => value;
-
-main() {
-  var obj = new TestClass();
-
-  Expect.equals(100, obj.method());
-  Expect.equals(100, obj.method2());
-  Expect.equals(50, obj.method(50));
-  Expect.equals(50, obj.method2(value: 50));
-  Expect.equals(null, obj.method(null));
-  Expect.equals(null, obj.method2(value: null));
-
-  Expect.equals(200, TestClass.staticMethod());
-  Expect.equals(200, TestClass.staticMethod2());
-  Expect.equals(50, TestClass.staticMethod(50));
-  Expect.equals(50, TestClass.staticMethod2(value: 50));
-  Expect.equals(null, TestClass.staticMethod(null));
-  Expect.equals(null, TestClass.staticMethod2(value: null));
-
-  Expect.equals(300, globalMethod());
-  Expect.equals(300, globalMethod2());
-  Expect.equals(50, globalMethod(50));
-  Expect.equals(50, globalMethod2(value: 50));
-  Expect.equals(null, globalMethod(null));
-  Expect.equals(null, globalMethod2(value: null));
-}
diff --git a/tests/language_2/parameter/named_passing_zero_test.dart b/tests/language_2/parameter/named_passing_zero_test.dart
deleted file mode 100644
index 6a9b8263495..00000000000
--- a/tests/language_2/parameter/named_passing_zero_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test program for testing named parameters with zero passed as an
-// argument.
-
-class TestClass {
-  TestClass();
-
-  num method([num value = 100]) => value;
-  num method2({num value: 100}) => value;
-
-  static num staticMethod([num value = 200]) => value;
-  static num staticMethod2({num value: 200}) => value;
-}
-
-num globalMethod([num value = 300]) => value;
-num globalMethod2({num value: 300}) => value;
-
-main() {
-  var obj = new TestClass();
-
-  Expect.equals(100, obj.method());
-  Expect.equals(100, obj.method2());
-  Expect.equals(7, obj.method(7));
-  Expect.equals(7, obj.method2(value: 7));
-  Expect.equals(0, obj.method(0));
-  Expect.equals(0, obj.method2(value: 0));
-
-  Expect.equals(200, TestClass.staticMethod());
-  Expect.equals(200, TestClass.staticMethod2());
-  Expect.equals(7, TestClass.staticMethod(7));
-  Expect.equals(7, TestClass.staticMethod2(value: 7));
-  Expect.equals(0, TestClass.staticMethod(0));
-  Expect.equals(0, TestClass.staticMethod2(value: 0));
-
-  Expect.equals(300, globalMethod());
-  Expect.equals(300, globalMethod2());
-  Expect.equals(7, globalMethod(7));
-  Expect.equals(7, globalMethod2(value: 7));
-  Expect.equals(0, globalMethod(0));
-  Expect.equals(0, globalMethod2(value: 0));
-}
diff --git a/tests/language_2/parameter/named_regression_test.dart b/tests/language_2/parameter/named_regression_test.dart
deleted file mode 100644
index 82581a738c2..00000000000
--- a/tests/language_2/parameter/named_regression_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// A regression test for dart2js bug 6015.
-
-class Fisk {
-  foo({b, a: true}) {
-    if (b == null) return;
-    throw 'broken';
-  }
-
-  bar({a, b: true}) {
-    if (a == null) return;
-    throw 'broken';
-  }
-}
-
-main() {
-  new Fisk().foo(a: true);
-  new Fisk().bar(b: true);
-}
diff --git a/tests/language_2/parameter/named_runtime_test.dart b/tests/language_2/parameter/named_runtime_test.dart
deleted file mode 100644
index dc581352ed5..00000000000
--- a/tests/language_2/parameter/named_runtime_test.dart
+++ /dev/null
@@ -1,120 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing named parameters.
-
-import "package:expect/expect.dart";
-
-class NamedParametersTest {
-  static int F00() {
-    return 0;
-  }
-
-  int f11() {
-    return 0;
-  }
-
-  static int F11(int a) {
-    return a;
-  }
-
-  int f22(int a) {
-    return a;
-  }
-
-  static int F10([int b = 20]) {
-    return b;
-  }
-
-  int f21([int b = 20]) {
-    return b;
-  }
-
-  static int F21(int a, [int b = 20]) {
-    return 100 * a + b;
-  }
-
-  int f32(int a, [int b = 20]) {
-    return 100 * a + b;
-  }
-
-  static int F31(int a, [int b = 20, int c = 30]) {
-    return 100 * (100 * a + b) + c;
-  }
-
-  int f42(int a, [int b = 20, int c = 30]) {
-    return 100 * (100 * a + b) + c;
-  }
-
-  static int F41(int a, [int b = 20, int c, int d = 40]) {
-    return 100 * (100 * (100 * a + b) + (c == null ? 0 : c)) + d;
-  }
-
-  int f52(int a, [int b = 20, int c, int d = 40]) {
-    return 100 * (100 * (100 * a + b) + (c == null ? 0 : c)) + d;
-  }
-
-  static testMain() {
-    NamedParametersTest np = new NamedParametersTest();
-    Expect.equals(0, F00());
-    Expect.equals(0, np.f11());
-    Expect.equals(10, F11(10));
-    Expect.equals(10, np.f22(10));
-    Expect.equals(20, F10());
-    Expect.equals(20, np.f21());
-    Expect.equals(20, F10(20));
-    Expect.equals(20, np.f21(20));
-
-
-    Expect.equals(1020, F21(10));
-    Expect.equals(1020, np.f32(10));
-    Expect.equals(1025, F21(10, 25));
-    Expect.equals(1025, np.f32(10, 25));
-
-
-    Expect.equals(102030, F31(10));
-    Expect.equals(102030, np.f42(10));
-    Expect.equals(102530, F31(10, 25));
-    Expect.equals(102530, np.f42(10, 25));
-
-
-    Expect.equals(102535, F31(10, 25, 35));
-    Expect.equals(102535, np.f42(10, 25, 35));
-
-
-    Expect.equals(10200040, F41(10));
-    Expect.equals(10200040, np.f52(10));
-
-
-  }
-}
-
-abstract class I {
-  factory I() = C;
-  int mul(int a, [int factor]);
-}
-
-class C implements I {
-  int mul(int a, [int factor = 10]) {
-    return a * factor;
-  }
-}
-
-hello(msg, to, {from}) => '${from} sent ${msg} to ${to}';
-message() => hello("gladiolas", "possums", from: "Edna");
-
-main() {
-  NamedParametersTest.testMain();
-  var i = new I();
-  Expect.equals(100, i.mul(10));
-  Expect.equals(1000, i.mul(10, 100));
-  var c = new C();
-  Expect.equals(100, c.mul(10));
-  Expect.equals(1000, c.mul(10, 100));
-  Expect.equals("Edna sent gladiolas to possums", message());
-}
diff --git a/tests/language_2/parameter/named_type_runtime_test.dart b/tests/language_2/parameter/named_type_runtime_test.dart
deleted file mode 100644
index a9ee03a4d72..00000000000
--- a/tests/language_2/parameter/named_type_runtime_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program for testing optional named parameters in type tests.
-
-main() {
-  Function anyFunction;
-  void acceptFunNumOptBool(void funNumOptBool(num n, {bool b})) {}
-  ;
-  void funNum(num n) {}
-  ;
-  void funNumBool(num n, bool b) {}
-  ;
-  void funNumOptBool(num n, {bool b: true}) {}
-  ;
-  void funNumOptBoolX(num n, {bool x: true}) {}
-  ;
-  anyFunction = funNum;
-  anyFunction = funNumBool;
-  anyFunction = funNumOptBool;
-  anyFunction = funNumOptBoolX;
-  acceptFunNumOptBool(funNumOptBool);
-
-
-
-}
diff --git a/tests/language_2/parameter/named_type_test.dart b/tests/language_2/parameter/named_type_test.dart
deleted file mode 100644
index 34dbf291987..00000000000
--- a/tests/language_2/parameter/named_type_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program for testing optional named parameters in type tests.
-
-// @dart = 2.9
-
-main() {
-  Function anyFunction;
-  void acceptFunNumOptBool(void funNumOptBool(num n, {bool b})) {}
-  ;
-  void funNum(num n) {}
-  ;
-  void funNumBool(num n, bool b) {}
-  ;
-  void funNumOptBool(num n, {bool b: true}) {}
-  ;
-  void funNumOptBoolX(num n, {bool x: true}) {}
-  ;
-  anyFunction = funNum;
-  anyFunction = funNumBool;
-  anyFunction = funNumOptBool;
-  anyFunction = funNumOptBoolX;
-  acceptFunNumOptBool(funNumOptBool);
-  acceptFunNumOptBool(funNum);
-  //                  ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_CAST_FUNCTION
-  // [cfe] The local function has type 'void Function(num)' that isn't of expected type 'void Function(num, {bool b})'.
-  acceptFunNumOptBool(funNumBool);
-  //                  ^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] The argument type 'void Function(num, bool)' can't be assigned to the parameter type 'void Function(num, {bool b})'.
-  acceptFunNumOptBool(funNumOptBoolX);
-  //                  ^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] The argument type 'void Function(num, {bool x})' can't be assigned to the parameter type 'void Function(num, {bool b})'.
-}
diff --git a/tests/language_2/parameter/named_with_conversions_test.dart b/tests/language_2/parameter/named_with_conversions_test.dart
deleted file mode 100644
index 0e640dc76cb..00000000000
--- a/tests/language_2/parameter/named_with_conversions_test.dart
+++ /dev/null
@@ -1,135 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Test named arguments work as expected regardless of whether the function or
-// method is called via function call syntax or method call syntax.
-// VMOptions=--optimization-counter-threshold=10
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-Validate(tag, a, b) {
-  // tag encodes which parameters are passed in with values a: 111, b: 222.
-  if (tag == 'ab') {
-    Expect.equals(a, 111);
-    Expect.equals(b, 222);
-  }
-  if (tag == 'a') {
-    Expect.equals(a, 111);
-    Expect.equals(b, 20);
-  }
-  if (tag == 'b') {
-    Expect.equals(a, 10);
-    Expect.equals(b, 222);
-  }
-  if (tag == '') {
-    Expect.equals(a, 10);
-    Expect.equals(b, 20);
-  }
-}
-
-class HasMethod {
-  int calls = 0;
-
-  HasMethod();
-
-  foo(tag, [a = 10, b = 20]) {
-    calls += 1;
-    Validate(tag, a, b);
-  }
-
-  foo2(tag, {a: 10, b: 20}) {
-    calls += 1;
-    Validate(tag, a, b);
-  }
-}
-
-class HasField {
-  int calls = 0;
-  dynamic foo, foo2;
-
-  HasField() {
-    foo = makeFoo(this);
-    foo2 = makeFoo2(this);
-  }
-
-  makeFoo(owner) {
-    // This function is closed-over 'owner'.
-    return (tag, [a = 10, b = 20]) {
-      owner.calls += 1;
-      Validate(tag, a, b);
-    };
-  }
-
-  makeFoo2(owner) {
-    // This function is closed-over 'owner'.
-    return (tag, {a: 10, b: 20}) {
-      owner.calls += 1;
-      Validate(tag, a, b);
-    };
-  }
-}
-
-class NamedParametersWithConversionsTest {
-  static testMethodCallSyntax(a) {
-    a.foo('');
-    a.foo('a', 111);
-    a.foo('ab', 111, 222);
-    a.foo2('a', a: 111);
-    a.foo2('b', b: 222);
-    a.foo2('ab', a: 111, b: 222);
-    a.foo2('ab', b: 222, a: 111);
-
-    Expect.equals(7, a.calls);
-
-    Expect.throwsNoSuchMethodError(() => a.foo()); // Too few arguments.
-    Expect.throwsNoSuchMethodError(
-        () => a.foo('abc', 1, 2, 3)); //              Too many arguments.
-    Expect.throwsNoSuchMethodError(() => a.foo2('c', c: 1)); // Bad name.
-    Expect.throwsNoSuchMethodError(
-        () => a.foo2('c', a: 111, c: 1)); //                    Bad name.
-
-    Expect.equals(7, a.calls);
-  }
-
-  static testFunctionCallSyntax(a) {
-    var f = a.foo;
-    var f2 = a.foo2;
-    f('');
-    f('a', 111);
-    f('ab', 111, 222);
-    f2('a', a: 111);
-    f2('b', b: 222);
-    f2('ab', a: 111, b: 222);
-    f2('ab', b: 222, a: 111);
-
-    Expect.equals(7, a.calls);
-
-    Expect.throwsNoSuchMethodError(() => f()); // Too few arguments.
-    Expect.throwsNoSuchMethodError(
-        () => f('abc', 1, 2, 3)); //              Too many arguments.
-    Expect.throwsNoSuchMethodError(() => f2('c', c: 1)); //         Bad name.
-    Expect.throwsNoSuchMethodError(() => f2('c', a: 111, c: 1)); // Bad name.
-
-    Expect.equals(7, a.calls);
-  }
-
-  static testMain() {
-    // 'Plain' calls where the method/field syntax matches the object.
-    testMethodCallSyntax(new HasMethod());
-    testFunctionCallSyntax(new HasField());
-
-    // 'Conversion' calls where method/field call syntax does not match the
-    // object.
-    testMethodCallSyntax(new HasField());
-    testFunctionCallSyntax(new HasMethod());
-  }
-}
-
-main() {
-  for (var i = 0; i < 20; i++) {
-    NamedParametersWithConversionsTest.testMain();
-  }
-}
diff --git a/tests/language_2/parameter/named_with_dollars_test.dart b/tests/language_2/parameter/named_with_dollars_test.dart
deleted file mode 100644
index 644771f30e8..00000000000
--- a/tests/language_2/parameter/named_with_dollars_test.dart
+++ /dev/null
@@ -1,93 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test to stress Frog's named parameter scheme.
-
-main() {
-  testDollar();
-  testPsycho();
-}
-
-class TestClass {
-  method({a, b, a$b, a$$b}) => [a, b, a$b, a$$b];
-
-  psycho({$, $$, $$$, $$$$}) => [$, $$, $$$, $$$$];
-}
-
-globalMethod({a, b, a$b, a$$b}) => [a, b, a$b, a$$b];
-
-format(thing) {
-  if (thing == null) return '-';
-  if (thing is List) {
-    var fragments = ['['];
-    var sep;
-    for (final item in thing) {
-      if (sep != null) fragments.add(sep);
-      sep = ', ';
-      fragments.add(format(item));
-    }
-    fragments.add(']');
-    return fragments.join();
-  }
-  return thing.toString();
-}
-
-// Hopefully inscrutable to static analysis.
-makeTestClass(n) => [new TestClass(), new Decoy(), 'string'][n % 3];
-
-class Decoy {
-  method([a$b, b, a]) {
-    throw new UnimplementedError();
-  }
-
-  psycho([$$$, $$, $]) {
-    throw new UnimplementedError();
-  }
-}
-
-testDollar() {
-  Expect.equals('[]', format([]));
-
-  Expect.equals('[-, -, -, -]', format(globalMethod()));
-  Expect.equals('[1, 2, -, -]', format(globalMethod(a: 1, b: 2)));
-  Expect.equals('[1, 2, -, -]', format(globalMethod(b: 2, a: 1)));
-  Expect.equals('[-, -, 3, -]', format(globalMethod(a$b: 3)));
-  Expect.equals('[-, -, -, 4]', format(globalMethod(a$$b: 4)));
-
-  TestClass t = new TestClass(); // Statically typed.
-
-  Expect.equals('[-, -, -, -]', format(t.method()));
-  Expect.equals('[1, 2, -, -]', format(t.method(a: 1, b: 2)));
-  Expect.equals('[1, 2, -, -]', format(t.method(b: 2, a: 1)));
-  Expect.equals('[-, -, 3, -]', format(t.method(a$b: 3)));
-  Expect.equals('[-, -, -, 4]', format(t.method(a$$b: 4)));
-
-  var obj = makeTestClass(0);
-
-  Expect.equals('[-, -, -, -]', format(obj.method()));
-  Expect.equals('[1, 2, -, -]', format(obj.method(a: 1, b: 2)));
-  Expect.equals('[1, 2, -, -]', format(obj.method(b: 2, a: 1)));
-  Expect.equals('[-, -, 3, -]', format(obj.method(a$b: 3)));
-  Expect.equals('[-, -, -, 4]', format(obj.method(a$$b: 4)));
-}
-
-testPsycho() {
-  TestClass t = new TestClass(); // Statically typed.
-
-  Expect.equals('[1, 2, 3, -]', format(t.psycho($: 1, $$: 2, $$$: 3)));
-  Expect.equals('[1, 2, 3, -]', format(t.psycho($$$: 3, $$: 2, $: 1)));
-  Expect.equals('[1, 2, -, -]', format(t.psycho($: 1, $$: 2)));
-  Expect.equals('[-, -, -, 4]', format(t.psycho($$$$: 4)));
-
-  var obj = makeTestClass(0);
-
-  Expect.equals('[1, 2, -, -]', format(obj.psycho($: 1, $$: 2)));
-  Expect.equals('[-, -, -, 4]', format(obj.psycho($$$$: 4)));
-  Expect.equals('[1, 2, 3, -]', format(obj.psycho($: 1, $$: 2, $$$: 3)));
-  Expect.equals('[1, 2, 3, -]', format(obj.psycho($$$: 3, $$: 2, $: 1)));
-}
diff --git a/tests/language_2/parameter/named_with_object_property_names_test.dart b/tests/language_2/parameter/named_with_object_property_names_test.dart
deleted file mode 100644
index b448f2097eb..00000000000
--- a/tests/language_2/parameter/named_with_object_property_names_test.dart
+++ /dev/null
@@ -1,247 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test for named parameter with the name of a JavaScript property found on
-// 'Object'.  For such a NAME, foo.NAME may exist in an empty map, i.e.
-//    'toString' in {} --> true.
-
-main() {
-  // Test properties found on instances of Object in Chrome 15 and Firefox 6.
-  test_constructor();
-  test_hasOwnProperty();
-  test_isPrototypeOf();
-  test_propertyIsEnumerable();
-  test_toSource();
-  test_toLocaleString();
-  test_toString();
-  test_unwatch();
-  test_valueOf();
-  test_watch();
-}
-
-// 'constructor' property.
-
-class TestClass_constructor {
-  method({constructor}) => constructor;
-  static staticMethod({constructor}) => constructor;
-}
-
-globalMethod_constructor({constructor}) => constructor;
-
-test_constructor() {
-  var obj = new TestClass_constructor();
-
-  Expect.equals(null, obj.method());
-  Expect.equals(0, obj.method(constructor: 0));
-
-  Expect.equals(null, TestClass_constructor.staticMethod());
-  Expect.equals(0, TestClass_constructor.staticMethod(constructor: 0));
-
-  Expect.equals(null, globalMethod_constructor());
-  Expect.equals(0, globalMethod_constructor(constructor: 0));
-}
-
-// 'hasOwnProperty' property.
-
-class TestClass_hasOwnProperty {
-  method({hasOwnProperty}) => hasOwnProperty;
-  static staticMethod({hasOwnProperty}) => hasOwnProperty;
-}
-
-globalMethod_hasOwnProperty({hasOwnProperty}) => hasOwnProperty;
-
-test_hasOwnProperty() {
-  var obj = new TestClass_hasOwnProperty();
-
-  Expect.equals(null, obj.method());
-  Expect.equals(0, obj.method(hasOwnProperty: 0));
-
-  Expect.equals(null, TestClass_hasOwnProperty.staticMethod());
-  Expect.equals(0, TestClass_hasOwnProperty.staticMethod(hasOwnProperty: 0));
-
-  Expect.equals(null, globalMethod_hasOwnProperty());
-  Expect.equals(0, globalMethod_hasOwnProperty(hasOwnProperty: 0));
-}
-
-// 'isPrototypeOf' property.
-
-class TestClass_isPrototypeOf {
-  method({isPrototypeOf}) => isPrototypeOf;
-  static staticMethod({isPrototypeOf}) => isPrototypeOf;
-}
-
-globalMethod_isPrototypeOf({isPrototypeOf}) => isPrototypeOf;
-
-test_isPrototypeOf() {
-  var obj = new TestClass_isPrototypeOf();
-
-  Expect.equals(null, obj.method());
-  Expect.equals(0, obj.method(isPrototypeOf: 0));
-
-  Expect.equals(null, TestClass_isPrototypeOf.staticMethod());
-  Expect.equals(0, TestClass_isPrototypeOf.staticMethod(isPrototypeOf: 0));
-
-  Expect.equals(null, globalMethod_isPrototypeOf());
-  Expect.equals(0, globalMethod_isPrototypeOf(isPrototypeOf: 0));
-}
-
-// 'propertyIsEnumerable' property.
-
-class TestClass_propertyIsEnumerable {
-  method({propertyIsEnumerable}) => propertyIsEnumerable;
-  static staticMethod({propertyIsEnumerable}) => propertyIsEnumerable;
-}
-
-globalMethod_propertyIsEnumerable({propertyIsEnumerable}) =>
-    propertyIsEnumerable;
-
-test_propertyIsEnumerable() {
-  var obj = new TestClass_propertyIsEnumerable();
-
-  Expect.equals(null, obj.method());
-  Expect.equals(0, obj.method(propertyIsEnumerable: 0));
-
-  Expect.equals(null, TestClass_propertyIsEnumerable.staticMethod());
-  Expect.equals(
-      0, TestClass_propertyIsEnumerable.staticMethod(propertyIsEnumerable: 0));
-
-  Expect.equals(null, globalMethod_propertyIsEnumerable());
-  Expect.equals(0, globalMethod_propertyIsEnumerable(propertyIsEnumerable: 0));
-}
-
-// 'toSource' property.
-
-class TestClass_toSource {
-  method({toSource}) => toSource;
-  static staticMethod({toSource}) => toSource;
-}
-
-globalMethod_toSource({toSource}) => toSource;
-
-test_toSource() {
-  var obj = new TestClass_toSource();
-
-  Expect.equals(null, obj.method());
-  Expect.equals(0, obj.method(toSource: 0));
-
-  Expect.equals(null, TestClass_toSource.staticMethod());
-  Expect.equals(0, TestClass_toSource.staticMethod(toSource: 0));
-
-  Expect.equals(null, globalMethod_toSource());
-  Expect.equals(0, globalMethod_toSource(toSource: 0));
-}
-
-// 'toLocaleString' property.
-
-class TestClass_toLocaleString {
-  method({toLocaleString}) => toLocaleString;
-  static staticMethod({toLocaleString}) => toLocaleString;
-}
-
-globalMethod_toLocaleString({toLocaleString}) => toLocaleString;
-
-test_toLocaleString() {
-  var obj = new TestClass_toLocaleString();
-
-  Expect.equals(null, obj.method());
-  Expect.equals(0, obj.method(toLocaleString: 0));
-
-  Expect.equals(null, TestClass_toLocaleString.staticMethod());
-  Expect.equals(0, TestClass_toLocaleString.staticMethod(toLocaleString: 0));
-
-  Expect.equals(null, globalMethod_toLocaleString());
-  Expect.equals(0, globalMethod_toLocaleString(toLocaleString: 0));
-}
-
-// 'toString' property.
-
-class TestClass_toString {
-  method({toString}) => toString;
-  static staticMethod({toString}) => toString;
-}
-
-globalMethod_toString({toString}) => toString;
-
-test_toString() {
-  var obj = new TestClass_toString();
-
-  Expect.equals(null, obj.method());
-  Expect.equals(0, obj.method(toString: 0));
-
-  Expect.equals(null, TestClass_toString.staticMethod());
-  Expect.equals(0, TestClass_toString.staticMethod(toString: 0));
-
-  Expect.equals(null, globalMethod_toString());
-  Expect.equals(0, globalMethod_toString(toString: 0));
-}
-
-// 'unwatch' property.
-
-class TestClass_unwatch {
-  method({unwatch}) => unwatch;
-  static staticMethod({unwatch}) => unwatch;
-}
-
-globalMethod_unwatch({unwatch}) => unwatch;
-
-test_unwatch() {
-  var obj = new TestClass_unwatch();
-
-  Expect.equals(null, obj.method());
-  Expect.equals(0, obj.method(unwatch: 0));
-
-  Expect.equals(null, TestClass_unwatch.staticMethod());
-  Expect.equals(0, TestClass_unwatch.staticMethod(unwatch: 0));
-
-  Expect.equals(null, globalMethod_unwatch());
-  Expect.equals(0, globalMethod_unwatch(unwatch: 0));
-}
-
-// 'valueOf' property.
-
-class TestClass_valueOf {
-  method({valueOf}) => valueOf;
-  static staticMethod({valueOf}) => valueOf;
-}
-
-globalMethod_valueOf({valueOf}) => valueOf;
-
-test_valueOf() {
-  var obj = new TestClass_valueOf();
-
-  Expect.equals(null, obj.method());
-  Expect.equals(0, obj.method(valueOf: 0));
-
-  Expect.equals(null, TestClass_valueOf.staticMethod());
-  Expect.equals(0, TestClass_valueOf.staticMethod(valueOf: 0));
-
-  Expect.equals(null, globalMethod_valueOf());
-  Expect.equals(0, globalMethod_valueOf(valueOf: 0));
-}
-
-// 'watch' property.
-
-class TestClass_watch {
-  method({watch}) => watch;
-  static staticMethod({watch}) => watch;
-}
-
-globalMethod_watch({watch}) => watch;
-
-test_watch() {
-  var obj = new TestClass_watch();
-
-  Expect.equals(null, obj.method());
-  Expect.equals(0, obj.method(watch: 0));
-
-  Expect.equals(null, TestClass_watch.staticMethod());
-  Expect.equals(0, TestClass_watch.staticMethod(watch: 0));
-
-  Expect.equals(null, globalMethod_watch());
-  Expect.equals(0, globalMethod_watch(watch: 0));
-}
diff --git a/tests/language_2/parameter/optional_named_runtime_test.dart b/tests/language_2/parameter/optional_named_runtime_test.dart
deleted file mode 100644
index 2809398dc3d..00000000000
--- a/tests/language_2/parameter/optional_named_runtime_test.dart
+++ /dev/null
@@ -1,108 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing optional named parameters.
-
-import "package:expect/expect.dart";
-
-class OptionalNamedParametersTest {
-  static int F00() {
-    return 0;
-  }
-
-  int f11() {
-    return 0;
-  }
-
-  static int F11(int a) {
-    return a;
-  }
-
-  int f22(int a) {
-    return a;
-  }
-
-  static int F10({int b: 20}) {
-    return b;
-  }
-
-  int f21({int b: 20}) {
-    return b;
-  }
-
-  static int F21(int a, {int b: 20}) {
-    return 100 * a + b;
-  }
-
-  int f32(int a, {int b: 20}) {
-    return 100 * a + b;
-  }
-
-  static int F31(int a, {int b: 20, int c: 30}) {
-    return 100 * (100 * a + b) + c;
-  }
-
-  int f42(int a, {int b: 20, int c: 30}) {
-    return 100 * (100 * a + b) + c;
-  }
-
-  static int F41(int a, {int b: 20, int c, int d: 40}) {
-    return 100 * (100 * (100 * a + b) + ((c != null) ? c : 0)) + d;
-  }
-
-  int f52(int a, {int b: 20, int c, int d: 40}) {
-    return 100 * (100 * (100 * a + b) + ((c != null) ? c : 0)) + d;
-  }
-
-  static void test() {
-    OptionalNamedParametersTest np = new OptionalNamedParametersTest();
-    Expect.equals(0, F00());
-    Expect.equals(0, np.f11());
-    Expect.equals(10, F11(10));
-    Expect.equals(10, np.f22(10));
-    Expect.equals(20, F10());
-    Expect.equals(20, np.f21());
-
-
-    Expect.equals(20, F10(b: 20));
-    Expect.equals(20, np.f21(b: 20));
-    Expect.equals(1020, F21(10));
-    Expect.equals(1020, np.f32(10));
-
-
-    Expect.equals(1025, F21(10, b: 25));
-    Expect.equals(1025, np.f32(10, b: 25));
-    Expect.equals(102030, F31(10));
-    Expect.equals(102030, np.f42(10));
-
-
-    Expect.equals(102530, F31(10, b: 25));
-    Expect.equals(102530, np.f42(10, b: 25));
-    Expect.equals(102035, F31(10, c: 35));
-    Expect.equals(102035, np.f42(10, c: 35));
-    Expect.equals(102535, F31(10, b: 25, c: 35));
-    Expect.equals(102535, np.f42(10, b: 25, c: 35));
-
-
-    Expect.equals(102535, F31(10, c: 35, b: 25));
-    Expect.equals(102535, np.f42(10, c: 35, b: 25));
-    Expect.equals(10200040, F41(10));
-    Expect.equals(10200040, np.f52(10));
-    Expect.equals(10203540, F41(10, c: 35));
-    Expect.equals(10203540, np.f52(10, c: 35));
-    Expect.equals(10250045, F41(10, d: 45, b: 25));
-
-    Expect.equals(10250045, np.f52(10, d: 45, b: 25));
-    Expect.equals(10253545, F41(10, d: 45, c: 35, b: 25));
-    Expect.equals(10253545, np.f52(10, d: 45, c: 35, b: 25));
-  }
-}
-
-main() {
-  OptionalNamedParametersTest.test();
-}
diff --git a/tests/language_2/parameter/optional_named_test.dart b/tests/language_2/parameter/optional_named_test.dart
deleted file mode 100644
index 17a32922c8e..00000000000
--- a/tests/language_2/parameter/optional_named_test.dart
+++ /dev/null
@@ -1,141 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing optional named parameters.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class OptionalNamedParametersTest {
-  static int F00() {
-    return 0;
-  }
-
-  int f11() {
-    return 0;
-  }
-
-  static int F11(int a) {
-    return a;
-  }
-
-  int f22(int a) {
-    return a;
-  }
-
-  static int F10({int b: 20}) {
-    return b;
-  }
-
-  int f21({int b: 20}) {
-    return b;
-  }
-
-  static int F21(int a, {int b: 20}) {
-    return 100 * a + b;
-  }
-
-  int f32(int a, {int b: 20}) {
-    return 100 * a + b;
-  }
-
-  static int F31(int a, {int b: 20, int c: 30}) {
-    return 100 * (100 * a + b) + c;
-  }
-
-  int f42(int a, {int b: 20, int c: 30}) {
-    return 100 * (100 * a + b) + c;
-  }
-
-  static int F41(int a, {int b: 20, int c, int d: 40}) {
-    return 100 * (100 * (100 * a + b) + ((c != null) ? c : 0)) + d;
-  }
-
-  int f52(int a, {int b: 20, int c, int d: 40}) {
-    return 100 * (100 * (100 * a + b) + ((c != null) ? c : 0)) + d;
-  }
-
-  static void test() {
-    OptionalNamedParametersTest np = new OptionalNamedParametersTest();
-    Expect.equals(0, F00());
-    Expect.equals(0, np.f11());
-    Expect.equals(10, F11(10));
-    Expect.equals(10, np.f22(10));
-    Expect.equals(20, F10());
-    Expect.equals(20, np.f21());
-    Expect.equals(20, F10(20));
-    //                    ^^
-    // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS_COULD_BE_NAMED
-    //                   ^^^^
-    // [cfe] Too many positional arguments: 0 allowed, but 1 found.
-    Expect.equals(20, np.f21(20));
-    //                       ^^
-    // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS_COULD_BE_NAMED
-    //                      ^^^^
-    // [cfe] Too many positional arguments: 0 allowed, but 1 found.
-    Expect.equals(20, F10(b: 20));
-    Expect.equals(20, np.f21(b: 20));
-    Expect.equals(1020, F21(10));
-    Expect.equals(1020, np.f32(10));
-    Expect.equals(1025, F21(10, 25));
-    //                          ^^
-    // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS_COULD_BE_NAMED
-    //                     ^^^^^^^^
-    // [cfe] Too many positional arguments: 1 allowed, but 2 found.
-    Expect.equals(1025, np.f32(10, 25));
-    //                             ^^
-    // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS_COULD_BE_NAMED
-    //                        ^^^^^^^^
-    // [cfe] Too many positional arguments: 1 allowed, but 2 found.
-    Expect.equals(1025, F21(10, b: 25));
-    Expect.equals(1025, np.f32(10, b: 25));
-    Expect.equals(102030, F31(10));
-    Expect.equals(102030, np.f42(10));
-    Expect.equals(102530, F31(10, 25));
-    //                            ^^
-    // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS_COULD_BE_NAMED
-    //                       ^^^^^^^^
-    // [cfe] Too many positional arguments: 1 allowed, but 2 found.
-    Expect.equals(102530, np.f42(10, 25));
-    //                               ^^
-    // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS_COULD_BE_NAMED
-    //                          ^^^^^^^^
-    // [cfe] Too many positional arguments: 1 allowed, but 2 found.
-    Expect.equals(102530, F31(10, b: 25));
-    Expect.equals(102530, np.f42(10, b: 25));
-    Expect.equals(102035, F31(10, c: 35));
-    Expect.equals(102035, np.f42(10, c: 35));
-    Expect.equals(102535, F31(10, b: 25, c: 35));
-    Expect.equals(102535, np.f42(10, b: 25, c: 35));
-    Expect.equals(102535, F31(10, 25, c:35));
-    //                            ^^
-    // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS_COULD_BE_NAMED
-    //                       ^^^^^^^^^^^^^^
-    // [cfe] Too many positional arguments: 1 allowed, but 2 found.
-    Expect.equals(102535, np.f42(10, 25, c:35));
-    //                               ^^
-    // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS_COULD_BE_NAMED
-    //                          ^^^^^^^^^^^^^^
-    // [cfe] Too many positional arguments: 1 allowed, but 2 found.
-    Expect.equals(102535, F31(10, c: 35, b: 25));
-    Expect.equals(102535, np.f42(10, c: 35, b: 25));
-    Expect.equals(10200040, F41(10));
-    Expect.equals(10200040, np.f52(10));
-    Expect.equals(10203540, F41(10, c: 35));
-    Expect.equals(10203540, np.f52(10, c: 35));
-    Expect.equals(10250045, F41(10, d: 45, b: 25));
-    Expect.equals(10250045, F41(10, 25, d:45));
-    //                              ^^
-    // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS_COULD_BE_NAMED
-    //                         ^^^^^^^^^^^^^^
-    // [cfe] Too many positional arguments: 1 allowed, but 2 found.
-    Expect.equals(10250045, np.f52(10, d: 45, b: 25));
-    Expect.equals(10253545, F41(10, d: 45, c: 35, b: 25));
-    Expect.equals(10253545, np.f52(10, d: 45, c: 35, b: 25));
-  }
-}
-
-main() {
-  OptionalNamedParametersTest.test();
-}
diff --git a/tests/language_2/parameter/param_test.dart b/tests/language_2/parameter/param_test.dart
deleted file mode 100644
index 579bf6edadb..00000000000
--- a/tests/language_2/parameter/param_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing params.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Helper {
-  static int foo(int i) {
-    var b;
-    b = i + 1;
-    return b;
-  }
-}
-
-class ParamTest {
-  static testMain() {
-    Expect.equals(2, Helper.foo(1));
-  }
-}
-
-main() {
-  ParamTest.testMain();
-}
diff --git a/tests/language_2/parameter/parameter1_test.dart b/tests/language_2/parameter/parameter1_test.dart
deleted file mode 100644
index 67de1cb7b9e..00000000000
--- a/tests/language_2/parameter/parameter1_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing params.
-
-// @dart = 2.9
-
-class Param1Test {
-  // TODO(asiva): Should we try to interpret 1 above as an int? In order to
-  // avoid a type error with --enable_type_checks, the type of i below is
-  // changed from int to String.
-  // static int testMain(String s, int i) { return i; }
-  static int testMain() {
-    return 0;
-  }
-}
-
-main() {
-  Param1Test.testMain();
-}
diff --git a/tests/language_2/parameter/parameter2_test.dart b/tests/language_2/parameter/parameter2_test.dart
deleted file mode 100644
index 67ae462dde0..00000000000
--- a/tests/language_2/parameter/parameter2_test.dart
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing function type parameters.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Param2Test {
-  static forEach(List<int> a, int f(int k)) {
-    for (int i = 0; i < a.length; i++) {
-      a[i] = f(a[i]);
-    }
-  }
-
-  static int apply(f(int k), int arg) {
-    var res = f(arg);
-    return res;
-  }
-
-  static exists(List<int> a, f(e)) {
-    for (int i = 0; i < a.length; i++) {
-      if (f(a[i])) return true;
-    }
-    return false;
-  }
-
-  static testMain() {
-    int square(int x) {
-      return x * x;
-    }
-
-    Expect.equals(4, apply(square, 2));
-    Expect.equals(100, apply(square, 10));
-
-    var v = [1, 2, 3, 4, 5, 6];
-    forEach(v, square);
-    Expect.equals(1, v[0]);
-    Expect.equals(4, v[1]);
-    Expect.equals(9, v[2]);
-    Expect.equals(16, v[3]);
-    Expect.equals(25, v[4]);
-    Expect.equals(36, v[5]);
-
-    isOdd(element) {
-      return element % 2 == 1;
-    }
-
-    Expect.equals(true, exists([3, 5, 7, 11, 13], isOdd));
-    Expect.equals(false, exists([2, 4, 10], isOdd));
-    Expect.equals(false, exists([], isOdd));
-
-    v = [4, 5, 7];
-    Expect.equals(true, exists(v, (e) => e % 2 == 1));
-    Expect.equals(false, exists(v, (e) => e == 6));
-
-    var isZero = (e) => e == 0;
-    Expect.equals(false, exists(v, isZero));
-  }
-}
-
-main() {
-  Param2Test.testMain();
-}
diff --git a/tests/language_2/parameter/positional_type_runtime_test.dart b/tests/language_2/parameter/positional_type_runtime_test.dart
deleted file mode 100644
index 50901a37127..00000000000
--- a/tests/language_2/parameter/positional_type_runtime_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program for testing optional positional parameters in type tests.
-
-main() {
-  Function anyFunction;
-  void acceptFunNumOptBool(void funNumOptBool(num n, [bool b])) {}
-  void funNum(num n) {}
-  void funNumBool(num n, bool b) {}
-  void funNumOptBool(num n, [bool b = true]) {}
-  void funNumOptBoolX(num n, [bool x = true]) {}
-
-  anyFunction = funNum;
-  anyFunction = funNumBool;
-  anyFunction = funNumOptBool;
-  anyFunction = funNumOptBoolX;
-  acceptFunNumOptBool(funNumOptBool);
-  acceptFunNumOptBool(funNumOptBoolX);
-
-
-}
diff --git a/tests/language_2/parameter/positional_type_test.dart b/tests/language_2/parameter/positional_type_test.dart
deleted file mode 100644
index 8e96699f8b9..00000000000
--- a/tests/language_2/parameter/positional_type_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test program for testing optional positional parameters in type tests.
-
-// @dart = 2.9
-
-main() {
-  Function anyFunction;
-  void acceptFunNumOptBool(void funNumOptBool(num n, [bool b])) {}
-  void funNum(num n) {}
-  void funNumBool(num n, bool b) {}
-  void funNumOptBool(num n, [bool b = true]) {}
-  void funNumOptBoolX(num n, [bool x = true]) {}
-
-  anyFunction = funNum;
-  anyFunction = funNumBool;
-  anyFunction = funNumOptBool;
-  anyFunction = funNumOptBoolX;
-  acceptFunNumOptBool(funNumOptBool);
-  acceptFunNumOptBool(funNumOptBoolX);
-  acceptFunNumOptBool(funNum);
-  //                  ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_CAST_FUNCTION
-  // [cfe] The local function has type 'void Function(num)' that isn't of expected type 'void Function(num, [bool])'.
-  acceptFunNumOptBool(funNumBool);
-  //                  ^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_CAST_FUNCTION
-  // [cfe] The local function has type 'void Function(num, bool)' that isn't of expected type 'void Function(num, [bool])'.
-}
diff --git a/tests/language_2/parameter/types_specialization_test.dart b/tests/language_2/parameter/types_specialization_test.dart
deleted file mode 100644
index 5dae22ef3d7..00000000000
--- a/tests/language_2/parameter/types_specialization_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test that we invalidate parameter type optimization in the presence
-// of optional parameters.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  void foo(bool firstInvocation, [a = 42, b = 'foo']) {
-    if (firstInvocation) {
-      Expect.isTrue(a is String);
-      Expect.isTrue(b is int);
-    } else {
-      Expect.isTrue(a is int);
-      Expect.isTrue(b is String);
-    }
-  }
-}
-
-test() {
-  // This call to [A.foo] will be in the queue after [A.foo] has been
-  // compiled with the optimistic type assumptions.
-  new A().foo(false);
-}
-
-main() {
-  test();
-  // This call to [A.foo] will be the first in the queue, and dart2js
-  // will optimize the method with these parameter types.
-  new A().foo(true, 'bar', 42);
-}
diff --git a/tests/language_2/part/missing_part_of_tag_part.dart b/tests/language_2/part/missing_part_of_tag_part.dart
deleted file mode 100644
index 479f0d492f9..00000000000
--- a/tests/language_2/part/missing_part_of_tag_part.dart
+++ /dev/null
@@ -1,5 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
diff --git a/tests/language_2/part/missing_part_of_tag_test.dart b/tests/language_2/part/missing_part_of_tag_test.dart
deleted file mode 100644
index 5ac9b502b01..00000000000
--- a/tests/language_2/part/missing_part_of_tag_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for missing part-of tag.
-
-library lib;
-
-part 'missing_part_of_tag_part.dart'; //# 01: compile-time error
-
-void main() {}
diff --git a/tests/language_2/part/of_multiple_libs_lib.dart b/tests/language_2/part/of_multiple_libs_lib.dart
deleted file mode 100644
index 9eebf167d41..00000000000
--- a/tests/language_2/part/of_multiple_libs_lib.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library ambiguous_lib;
-
-part "of_multiple_libs_part.dart";
-
-test() {
-  foo();
-}
diff --git a/tests/language_2/part/of_multiple_libs_part.dart b/tests/language_2/part/of_multiple_libs_part.dart
deleted file mode 100644
index 023bab5ba09..00000000000
--- a/tests/language_2/part/of_multiple_libs_part.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-part of ambiguous_lib;
-
-bar() {}
-
-foo() {
-  bar();
-}
diff --git a/tests/language_2/part/of_multiple_libs_runtime_test.dart b/tests/language_2/part/of_multiple_libs_runtime_test.dart
deleted file mode 100644
index 96cfb95578d..00000000000
--- a/tests/language_2/part/of_multiple_libs_runtime_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-library ambiguous_lib;
-
-
-
-part "of_multiple_libs_part.dart";
-
-main() {
-  foo();
-}
diff --git a/tests/language_2/part/of_multiple_libs_test.dart b/tests/language_2/part/of_multiple_libs_test.dart
deleted file mode 100644
index 3fa76ca9d33..00000000000
--- a/tests/language_2/part/of_multiple_libs_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library ambiguous_lib;
-
-import 'of_multiple_libs_lib.dart';
-
-part "of_multiple_libs_part.dart";
-
-//^
-// [cfe] Method not found: 'foo'.
-main() {
-  foo();
-}
diff --git a/tests/language_2/part/of_uri2_part.dart b/tests/language_2/part/of_uri2_part.dart
deleted file mode 100644
index 11ee3f446a9..00000000000
--- a/tests/language_2/part/of_uri2_part.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-part of "of_uri2_test.dart";
-
-// Refer to declaration in library and other part.
-const bar1 = "part1";
-const baz1 = "$foo${bar2}1";
diff --git a/tests/language_2/part/of_uri2_part2.dart b/tests/language_2/part/of_uri2_part2.dart
deleted file mode 100644
index bb093eb1c62..00000000000
--- a/tests/language_2/part/of_uri2_part2.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-part of part_of_uri2;
-
-// Refer to declaration in library and other part.
-const bar2 = "part2";
-const baz2 = "$foo${bar1}2";
diff --git a/tests/language_2/part/of_uri2_test.dart b/tests/language_2/part/of_uri2_test.dart
deleted file mode 100644
index 1b63b563b1e..00000000000
--- a/tests/language_2/part/of_uri2_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library part_of_uri2;
-
-part "of_uri2_part.dart"; // declares bar1, baz1, uses URI.
-part "of_uri2_part2.dart"; // declares bar2, baz2, uses id.
-
-const foo = 'foo';
-const qux = "$baz1$baz2";
-
-main() {
-  if (!identical(qux, "foopart21foopart12")) throw "Fail: $qux";
-}
diff --git a/tests/language_2/part/of_uri_part.dart b/tests/language_2/part/of_uri_part.dart
deleted file mode 100644
index 6c9c1005244..00000000000
--- a/tests/language_2/part/of_uri_part.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-part of "of_uri_test.dart";
-
-// Refer to declaration in library and other part.
-const bar1 = "part1";
-const baz1 = "$foo${bar2}1";
diff --git a/tests/language_2/part/of_uri_part2.dart b/tests/language_2/part/of_uri_part2.dart
deleted file mode 100644
index ec19b10834f..00000000000
--- a/tests/language_2/part/of_uri_part2.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-part of "of_uri_test.dart";
-
-// Refer to declaration in library and other part.
-const bar2 = "part2";
-const baz2 = "$foo${bar1}2";
diff --git a/tests/language_2/part/of_uri_test.dart b/tests/language_2/part/of_uri_test.dart
deleted file mode 100644
index a1cef5633ff..00000000000
--- a/tests/language_2/part/of_uri_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// No library declaration
-part "of_uri_part.dart"; // declares bar1, baz1
-part "of_uri_part2.dart"; // declares bar2, baz2
-
-const foo = 'foo';
-const qux = "$baz1$baz2";
-
-main() {
-  if (!identical(qux, "foopart21foopart12")) throw "Fail: $qux";
-}
diff --git a/tests/language_2/part/part.dart b/tests/language_2/part/part.dart
deleted file mode 100644
index 3e283596f3c..00000000000
--- a/tests/language_2/part/part.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-part of org.dartlang.test.part_test;
-
-const foo = 'foo';
diff --git a/tests/language_2/part/part2_test.dart b/tests/language_2/part/part2_test.dart
deleted file mode 100644
index dd92d83133e..00000000000
--- a/tests/language_2/part/part2_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library org.dartlang.test.part2_test;
-
-part "part.dart"; //# 01: compile-time error
-
-main() {
-  print(foo); //# 01: continued
-}
diff --git a/tests/language_2/part/part_test.dart b/tests/language_2/part/part_test.dart
deleted file mode 100644
index f4829e7eeda..00000000000
--- a/tests/language_2/part/part_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library org.dartlang.test.part_test;
-
-part "part.dart";
-
-main() {
-  print(foo);
-}
diff --git a/tests/language_2/part/refers_to_core_library_runtime_test.dart b/tests/language_2/part/refers_to_core_library_runtime_test.dart
deleted file mode 100644
index 9b10a6c4558..00000000000
--- a/tests/language_2/part/refers_to_core_library_runtime_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// This test reproduces https://github.com/dart-lang/sdk/issues/29709.
-
-library dart.async;
-
-
-
-main() {}
diff --git a/tests/language_2/part/self_test.dart b/tests/language_2/part/self_test.dart
deleted file mode 100644
index 8298f3cb21f..00000000000
--- a/tests/language_2/part/self_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-part "self_test.dart";
-//   ^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.PART_OF_NON_PART
-
-main() {
-  print('should not be able to recursively include self as library part');
-}
diff --git a/tests/language_2/prefix/assignment_runtime_test.dart b/tests/language_2/prefix/assignment_runtime_test.dart
deleted file mode 100644
index de7ec2b5c4a..00000000000
--- a/tests/language_2/prefix/assignment_runtime_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Validate that assignment to a prefix is handled consistently with the
-// following spec text from section 16.19 (Assignment):
-//     Evaluation of an assignment a of the form v = e proceeds as follows:
-//     Let d be the innermost declaration whose name is v or v=, if it exists.
-//     It is a compile-time error if d denotes a prefix object.
-
-import "empty_library.dart" as p;
-
-class Base {
-  var p;
-}
-
-class Derived extends Base {
-  void f() {
-
-  }
-}
-
-main() {
-  new Derived().f();
-
-}
diff --git a/tests/language_2/prefix/assignment_test.dart b/tests/language_2/prefix/assignment_test.dart
deleted file mode 100644
index bed611979ce..00000000000
--- a/tests/language_2/prefix/assignment_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Validate that assignment to a prefix is handled consistently with the
-// following spec text from section 16.19 (Assignment):
-//     Evaluation of an assignment a of the form v = e proceeds as follows:
-//     Let d be the innermost declaration whose name is v or v=, if it exists.
-//     It is a compile-time error if d denotes a prefix object.
-
-import "empty_library.dart" as p;
-
-class Base {
-  var p;
-}
-
-class Derived extends Base {
-  void f() {
-    p = 1;
-//  ^
-// [analyzer] COMPILE_TIME_ERROR.PREFIX_IDENTIFIER_NOT_FOLLOWED_BY_DOT
-// [cfe] A prefix can't be used as an expression.
-  }
-}
-
-main() {
-  new Derived().f();
-  p = 1;
-//^
-// [analyzer] COMPILE_TIME_ERROR.PREFIX_IDENTIFIER_NOT_FOLLOWED_BY_DOT
-// [cfe] A prefix can't be used as an expression.
-}
diff --git a/tests/language_2/prefix/empty_library.dart b/tests/language_2/prefix/empty_library.dart
deleted file mode 100644
index 073586f598d..00000000000
--- a/tests/language_2/prefix/empty_library.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library empty_library;
diff --git a/tests/language_2/prefix/identifier_reference_test.dart b/tests/language_2/prefix/identifier_reference_test.dart
deleted file mode 100644
index 6dcb682899e..00000000000
--- a/tests/language_2/prefix/identifier_reference_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Validate the following spec text from section 16.32 (Identifier Reference):
-//     Evaluation of an identifier expression e of the form id proceeds as
-//   follows:
-//     Let d be the innermost declaration in the enclosing lexical scope whose
-//   name is id or id=.  If no such declaration exists in the lexical scope,
-//   d be the declaration of the inherited member named id if it exists.
-//     - If d is a prefix p, a compile-time error occurs unless the token
-//       immediately following d is '.'.
-
-import "package:expect/expect.dart";
-import "empty_library.dart" as p;
-
-void f(x) {}
-
-main() {
-  f(p); //        //# 01: compile-time error
-  var x = p; //   //# 02: compile-time error
-  var x = p[0]; //# 03: compile-time error
-  p[0] = null; // //# 04: compile-time error
-  p += 0; //      //# 05: compile-time error
-}
diff --git a/tests/language_2/prefix/import_collision_runtime_test.dart b/tests/language_2/prefix/import_collision_runtime_test.dart
deleted file mode 100644
index 219a701096e..00000000000
--- a/tests/language_2/prefix/import_collision_runtime_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Using the same prefix name while importing two different libraries is
-// not an error but both library1.dart and library2.dart define 'foo' which
-// results in a duplicate definition error.
-import "../library1.dart" as lib2; // defines 'foo'.
-import "../library2.dart" as lib2; // also defines 'foo'.
-
-main() {
-
-}
diff --git a/tests/language_2/prefix/import_collision_test.dart b/tests/language_2/prefix/import_collision_test.dart
deleted file mode 100644
index c97ff674f0b..00000000000
--- a/tests/language_2/prefix/import_collision_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Using the same prefix name while importing two different libraries is
-// not an error but both library1.dart and library2.dart define 'foo' which
-// results in a duplicate definition error.
-import "../library1.dart" as lib2; // defines 'foo'.
-import "../library2.dart" as lib2; // also defines 'foo'.
-
-main() {
-  lib2.foo = 1;
-  //   ^^^
-  // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_IMPORT
-  // [cfe] Setter not found: 'foo'.
-}
diff --git a/tests/language_2/prefix/invalid_name_runtime_test.dart b/tests/language_2/prefix/invalid_name_runtime_test.dart
deleted file mode 100644
index a88c4d0bd07..00000000000
--- a/tests/language_2/prefix/invalid_name_runtime_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Prefix must be a valid identifier.
-import "../library1.dart"
-
-    ;
-
-main() {}
diff --git a/tests/language_2/prefix/invalid_name_test.dart b/tests/language_2/prefix/invalid_name_test.dart
deleted file mode 100644
index b513fad54f1..00000000000
--- a/tests/language_2/prefix/invalid_name_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Prefix must be a valid identifier.
-import "../library1.dart"
-    as lib1.invalid
-    // ^^^^
-    // [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-    // [cfe] Expected ';' after this.
-    //     ^
-    // [analyzer] SYNTACTIC_ERROR.EXPECTED_EXECUTABLE
-    // [cfe] Expected a declaration, but got '.'.
-    //      ^^^^^^^
-    // [analyzer] SYNTACTIC_ERROR.MISSING_CONST_FINAL_VAR_OR_TYPE
-    // [cfe] Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
-    ;
-
-main() {}
diff --git a/tests/language_2/prefix/new_test.dart b/tests/language_2/prefix/new_test.dart
deleted file mode 100644
index 8eac1769267..00000000000
--- a/tests/language_2/prefix/new_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library PrefixTest;
-
-import "package:expect/expect.dart";
-import "new_test1.dart";
-
-main() {
-  Expect.equals(Prefix.getSource(), Prefix.getImport() + 1);
-}
diff --git a/tests/language_2/prefix/new_test1.dart b/tests/language_2/prefix/new_test1.dart
deleted file mode 100644
index 05681eee60c..00000000000
--- a/tests/language_2/prefix/new_test1.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library PrefixTest1;
-
-import "new_test2.dart" as test2;
-
-class Prefix {
-  static const int foo = 43;
-
-  static getSource() {
-    return foo;
-  }
-
-  static getImport() {
-    return test2.Prefix.foo;
-  }
-}
diff --git a/tests/language_2/prefix/new_test2.dart b/tests/language_2/prefix/new_test2.dart
deleted file mode 100644
index c23f84dda04..00000000000
--- a/tests/language_2/prefix/new_test2.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library PrefixNewTest2;
-
-class Prefix {
-  static const int foo = 42;
-}
diff --git a/tests/language_2/prefix/prefix101_test.dart b/tests/language_2/prefix/prefix101_test.dart
deleted file mode 100644
index cc2570f7b8b..00000000000
--- a/tests/language_2/prefix/prefix101_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test to check if we are able to import multiple libraries using the
-// same prefix.
-
-library Prefix101Test.dart;
-
-import "package:expect/expect.dart";
-import "../library10.dart" as lib101;
-import "../library11.dart" as lib101;
-
-class Prefix101Test {
-  static Test1() {
-    var result = 0;
-    var obj = new lib101.Library10(1);
-    result = obj.fld;
-    Expect.equals(1, result);
-    result += obj.func();
-    Expect.equals(3, result);
-    result += lib101.Library10.static_func();
-    Expect.equals(6, result);
-    result += lib101.Library10.static_fld;
-    Expect.equals(10, result);
-  }
-
-  static Test2() {
-    var result = 0;
-    var obj = new lib101.Library11(4);
-    result = obj.fld;
-    Expect.equals(4, result);
-    result += obj.func();
-    Expect.equals(7, result);
-    result += lib101.Library11.static_func();
-    Expect.equals(9, result);
-    result += lib101.Library11.static_fld;
-    Expect.equals(10, result);
-  }
-
-  static Test3() {
-    Expect.equals(10, lib101.top_level10);
-    Expect.equals(20, lib101.top_level_func10());
-  }
-
-  static Test4() {
-    Expect.equals(100, lib101.top_level11);
-    Expect.equals(200, lib101.top_level_func11());
-  }
-}
-
-main() {
-  Prefix101Test.Test1();
-  Prefix101Test.Test2();
-  Prefix101Test.Test3();
-  Prefix101Test.Test4();
-}
diff --git a/tests/language_2/prefix/prefix10_test.dart b/tests/language_2/prefix/prefix10_test.dart
deleted file mode 100644
index dbcd3fd1c1f..00000000000
--- a/tests/language_2/prefix/prefix10_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library Prefix10Test.dart;
-
-import "package:expect/expect.dart";
-import "../library10.dart" as lib10;
-import "../library11.dart" as lib11;
-
-class Prefix10Test {
-  static Test1() {
-    var result = 0;
-    var obj = new lib10.Library10(1);
-    result = obj.fld;
-    Expect.equals(1, result);
-    result += obj.func();
-    Expect.equals(3, result);
-    result += lib10.Library10.static_func();
-    Expect.equals(6, result);
-    result += lib10.Library10.static_fld;
-    Expect.equals(10, result);
-  }
-
-  static Test2() {
-    var result = 0;
-    var obj = new lib11.Library11(4);
-    result = obj.fld;
-    Expect.equals(4, result);
-    result += obj.func();
-    Expect.equals(7, result);
-    result += lib11.Library11.static_func();
-    Expect.equals(9, result);
-    result += lib11.Library11.static_fld;
-    Expect.equals(10, result);
-  }
-
-  static Test3() {
-    Expect.equals(10, lib10.top_level10);
-    Expect.equals(20, lib10.top_level_func10());
-  }
-
-  static Test4() {
-    Expect.equals(100, lib11.top_level11);
-    Expect.equals(200, lib11.top_level_func11());
-  }
-}
-
-main() {
-  Prefix10Test.Test1();
-  Prefix10Test.Test2();
-  Prefix10Test.Test3();
-  Prefix10Test.Test4();
-}
diff --git a/tests/language_2/prefix/prefix11_test.dart b/tests/language_2/prefix/prefix11_test.dart
deleted file mode 100644
index b621f9e0640..00000000000
--- a/tests/language_2/prefix/prefix11_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-// @dart = 2.9
-
-library Prefix11Test.dart;
-
-import "package:expect/expect.dart";
-import "../library10.dart";
-import "../library11.dart" as lib11;
-
-class Prefix11Test {
-  static Test1() {
-    var result = 0;
-    var obj = new Library10(1);
-    result = obj.fld;
-    Expect.equals(1, result);
-    result += obj.func();
-    Expect.equals(3, result);
-    result += Library10.static_func();
-    Expect.equals(6, result);
-    result += Library10.static_fld;
-    Expect.equals(10, result);
-  }
-
-  static Test2() {
-    var result = 0;
-    var obj = new lib11.Library11(4);
-    result = obj.fld;
-    Expect.equals(4, result);
-    result += obj.func();
-    Expect.equals(7, result);
-    result += lib11.Library11.static_func();
-    Expect.equals(9, result);
-    result += lib11.Library11.static_fld;
-    Expect.equals(10, result);
-  }
-
-  static Test3() {
-    Expect.equals(10, top_level10);
-    Expect.equals(20, top_level_func10());
-  }
-
-  static Test4() {
-    Expect.equals(100, lib11.top_level11);
-    Expect.equals(200, lib11.top_level_func11());
-  }
-}
-
-main() {
-  Prefix11Test.Test1();
-  Prefix11Test.Test2();
-  Prefix11Test.Test3();
-  Prefix11Test.Test4();
-}
diff --git a/tests/language_2/prefix/prefix12_test.dart b/tests/language_2/prefix/prefix12_test.dart
deleted file mode 100644
index eeca2863b2c..00000000000
--- a/tests/language_2/prefix/prefix12_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-// @dart = 2.9
-
-library Prefix12Test.dart;
-
-import "package:expect/expect.dart";
-import "../library11.dart" as lib11;
-
-class Prefix12Test {
-  static Test1() {
-    var result = 0;
-    var obj = new lib11.Library11.namedConstructor(10);
-    result = obj.fld;
-    Expect.equals(10, result);
-  }
-
-  static Test2() {
-    int result = 0;
-    var obj = new lib11.Library111<int>.namedConstructor(10);
-    result = obj.fld;
-    Expect.equals(10, result);
-  }
-}
-
-main() {
-  Prefix12Test.Test1();
-  Prefix12Test.Test2();
-}
diff --git a/tests/language_2/prefix/prefix14_test.dart b/tests/language_2/prefix/prefix14_test.dart
deleted file mode 100644
index a72ae2d7c68..00000000000
--- a/tests/language_2/prefix/prefix14_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Use qualified symbols at various places.
-
-// @dart = 2.9
-
-library Prefix14Test.dart;
-
-import "package:expect/expect.dart";
-import "../library12.dart" as lib12;
-
-typedef lib12.Library12 myFunc(lib12.Library12 param);
-
-class myInterface implements lib12.Library12Interface {
-  myInterface(lib12.Library12 this.myfld);
-  lib12.Library12 addObjects(lib12.Library12 value1, lib12.Library12 value2) {
-    myfld.fld = (value1.fld + value2.fld + myfld.fld);
-    return myfld;
-  }
-
-  lib12.Library12 myfld;
-}
-
-class myClass extends lib12.Library12 {
-  myClass(int value) : super(value);
-  static lib12.Library12 func1() {
-    var i = new lib12.Library12(10);
-    return i;
-  }
-
-  static lib12.Library12 func2(lib12.Library12 param) {
-    return param;
-  }
-}
-
-class myClass1 {
-  myClass1(int value) : fld1 = new lib12.Library12(value);
-  lib12.Library12 fld1;
-}
-
-class myClass2 {
-  myClass2(lib12.Library12 this.fld2);
-  lib12.Library12 fld2;
-}
-
-main() {
-  var o;
-  o = myClass.func1();
-  Expect.equals(2, o.func());
-  o = new myClass(10);
-  Expect.equals(10, o.fld);
-
-  myFunc func = myClass.func2;
-  Expect.equals(2, func(new lib12.Library12(10)).func());
-  Expect.equals(10, func(new lib12.Library12(10)).fld);
-
-  o = new myClass1(100);
-  Expect.equals(2, o.fld1.func());
-  Expect.equals(100, o.fld1.fld);
-
-  o = new myClass2(new lib12.Library12(200));
-  Expect.equals(2, o.fld2.func());
-  Expect.equals(200, o.fld2.fld);
-
-  o = new myInterface(new lib12.Library12(100));
-  Expect.equals(2, o.myfld.func());
-  Expect.equals(100, o.myfld.fld);
-  o = o.addObjects(new lib12.Library12(200), new lib12.Library12(300));
-  Expect.equals(2, o.func());
-  Expect.equals(600, o.fld);
-}
diff --git a/tests/language_2/prefix/prefix15_test.dart b/tests/language_2/prefix/prefix15_test.dart
deleted file mode 100644
index 85e6f16f495..00000000000
--- a/tests/language_2/prefix/prefix15_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Use qualified symbols with generics at various places.
-
-// @dart = 2.9
-
-library Prefix15Test.dart;
-
-import "package:expect/expect.dart";
-import "../library12.dart" as lib12;
-
-typedef T myFunc<T>(T param);
-
-class myInterface<T extends lib12.Library12>
-    implements lib12.Library12Interface {
-  myInterface(T this.myfld);
-  T addObjects(covariant T value1, covariant T value2) {
-    myfld.fld = (value1.fld + value2.fld + myfld.fld);
-    return myfld;
-  }
-
-  T myfld;
-}
-
-class myClass2<T> {
-  myClass2(T this.fld2);
-  T func(T val) => val;
-  T fld2;
-}
-
-main() {
-  var o;
-  o = new myClass2<lib12.Library12>(new lib12.Library12(100));
-  myFunc<lib12.Library12> func = o.func;
-  Expect.equals(2, func(new lib12.Library12(10)).func());
-  Expect.equals(10, func(new lib12.Library12(10)).fld);
-
-  o = new myClass2<lib12.Library12>(new lib12.Library12(200));
-  Expect.equals(2, o.fld2.func());
-  Expect.equals(200, o.fld2.fld);
-
-  o = new myInterface<lib12.Library12>(new lib12.Library12(100));
-  Expect.equals(2, o.myfld.func());
-  Expect.equals(100, o.myfld.fld);
-  o = o.addObjects(new lib12.Library12(200), new lib12.Library12(300));
-  Expect.equals(2, o.func());
-  Expect.equals(600, o.fld);
-}
diff --git a/tests/language_2/prefix/prefix16_runtime_test.dart b/tests/language_2/prefix/prefix16_runtime_test.dart
deleted file mode 100644
index 465bc059f18..00000000000
--- a/tests/language_2/prefix/prefix16_runtime_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Unresolved imported symbols are errors.
-// In this test, the function myFunc contains malformed types because
-// lib12.Library13 is not resolved.
-
-import "package:expect/expect.dart";
-import "../library12.dart" as lib12;
-
-typedef
-
-    myFunc(
-
-        param);
-typedef
-
-    myFunc2(
-
-        param, int i);
-
-main() {
-  Expect.isTrue(((Object x) => x) is myFunc);
-  Expect.isTrue(((Object x, int y) => x) is myFunc2);
-  Expect.isFalse(((Object x, String y) => x) is myFunc2);
-}
diff --git a/tests/language_2/prefix/prefix16_test.dart b/tests/language_2/prefix/prefix16_test.dart
deleted file mode 100644
index e3f4ad9fb2b..00000000000
--- a/tests/language_2/prefix/prefix16_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Unresolved imported symbols are errors.
-// In this test, the function myFunc contains malformed types because
-// lib12.Library13 is not resolved.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "../library12.dart" as lib12;
-
-typedef
-    lib12.Library13
-//  ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_CLASS
-// [cfe] Type 'lib12.Library13' not found.
-    myFunc(
-        lib12.Library13
-//      ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_CLASS
-// [cfe] Type 'lib12.Library13' not found.
-        param);
-typedef
-    lib12.Library13
-//  ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_CLASS
-// [cfe] Type 'lib12.Library13' not found.
-    myFunc2(
-        lib12.Library13
-//      ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_CLASS
-// [cfe] Type 'lib12.Library13' not found.
-        param, int i);
-
-main() {
-  Expect.isTrue(((Object x) => x) is myFunc);
-  Expect.isTrue(((Object x, int y) => x) is myFunc2);
-  Expect.isFalse(((Object x, String y) => x) is myFunc2);
-}
diff --git a/tests/language_2/prefix/prefix17_test.dart b/tests/language_2/prefix/prefix17_test.dart
deleted file mode 100644
index 1bbadd85b5f..00000000000
--- a/tests/language_2/prefix/prefix17_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library Prefix17Test.dart;
-
-import "../library12.dart" as lib12;
-
-class LocalClass {
-  static int static_fld;
-}
-
-void main() {
-  LocalClass.static_fld = 42;
-  var lc1 = new lib12.Library12(5);
-  lib12.Library12 lc2 = new lib12.Library12(10);
-  lib12.Library12 lc2m = new lib12.Library12.other(10, 2);
-  lib12.Library12.static_fld = 43;
-  //print("${LocalClass.static_fld}, ${lc1.fld}, ${lc2.fld}, ${lc2m.fld}, ${lib12.Library12.static_fld}");
-}
diff --git a/tests/language_2/prefix/prefix21_bad_lib.dart b/tests/language_2/prefix/prefix21_bad_lib.dart
deleted file mode 100644
index 4bd7201d388..00000000000
--- a/tests/language_2/prefix/prefix21_bad_lib.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library Prefix21Bad;
-
-int badFunction(int x) {
-  return x << 1;
-}
-
-Function get getValue {
-  return badFunction;
-}
diff --git a/tests/language_2/prefix/prefix21_good_lib.dart b/tests/language_2/prefix/prefix21_good_lib.dart
deleted file mode 100644
index 1f1b3e3e733..00000000000
--- a/tests/language_2/prefix/prefix21_good_lib.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library Prefix21Good;
-
-int goodFunction(int x) {
-  return x;
-}
-
-Function get getValue {
-  return goodFunction;
-}
diff --git a/tests/language_2/prefix/prefix21_test.dart b/tests/language_2/prefix/prefix21_test.dart
deleted file mode 100644
index 1c1121e9026..00000000000
--- a/tests/language_2/prefix/prefix21_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library Prefix21;
-
-import "package:expect/expect.dart";
-import "prefix21_good_lib.dart" as good;
-import "prefix21_bad_lib.dart" as bad;
-
-main() {
-  Expect.equals(good.getValue(42), 42);
-  Expect.equals(bad.getValue(42), 84);
-}
diff --git a/tests/language_2/prefix/prefix22_runtime_test.dart b/tests/language_2/prefix/prefix22_runtime_test.dart
deleted file mode 100644
index 178ab0dd577..00000000000
--- a/tests/language_2/prefix/prefix22_runtime_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Unresolved symbols should be reported as static type warnings.
-// This should not prevent execution.
-
-library Prefix21NegativeTest.dart;
-import "../library12.dart" as lib12;
-
-class myClass {
-  myClass(
-
-      p) { }
-}
-
-main() {
-  new myClass(null);  // no dynamic type error when assigning null
-}
diff --git a/tests/language_2/prefix/prefix22_test.dart b/tests/language_2/prefix/prefix22_test.dart
deleted file mode 100644
index 95d0827689a..00000000000
--- a/tests/language_2/prefix/prefix22_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Unresolved symbols should be reported as static type warnings.
-// This should not prevent execution.
-
-// @dart = 2.9
-
-library Prefix21NegativeTest.dart;
-import "../library12.dart" as lib12;
-
-class myClass {
-  myClass(
-      lib12.Library13
-//    ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_CLASS
-// [cfe] Type 'lib12.Library13' not found.
-//          ^
-// [cfe] 'Library13' isn't a type.
-      p) { }
-}
-
-main() {
-  new myClass(null);  // no dynamic type error when assigning null
-}
diff --git a/tests/language_2/prefix/prefix23_runtime_test.dart b/tests/language_2/prefix/prefix23_runtime_test.dart
deleted file mode 100644
index 6d59d60d300..00000000000
--- a/tests/language_2/prefix/prefix23_runtime_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Unresolved symbols should be reported as an static type warnings.
-// This should not prevent execution.
-
-library Prefix23Test.dart;
-
-import "../library12.dart" as lib12;
-
-class myClass {
-  final
-
-      fld = null;
-}
-
-main() {}
diff --git a/tests/language_2/prefix/prefix23_test.dart b/tests/language_2/prefix/prefix23_test.dart
deleted file mode 100644
index a5c7b9485dc..00000000000
--- a/tests/language_2/prefix/prefix23_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Unresolved symbols should be reported as an static type warnings.
-// This should not prevent execution.
-
-// @dart = 2.9
-
-library Prefix23Test.dart;
-
-import "../library12.dart" as lib12;
-
-class myClass {
-  final
-      lib12.Library13
-//    ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_CLASS
-// [cfe] Type 'lib12.Library13' not found.
-//          ^
-// [cfe] 'Library13' isn't a type.
-      fld = null;
-}
-
-main() {}
diff --git a/tests/language_2/prefix/prefix24_lib1.dart b/tests/language_2/prefix/prefix24_lib1.dart
deleted file mode 100644
index aca4e95c1e0..00000000000
--- a/tests/language_2/prefix/prefix24_lib1.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library prefix24_lib1;
-
-import "prefix24_lib2.dart" as X;
-
-// lib1_foo() returns value of bar() in library prefix24_lib2.
-lib1_foo() => X.bar();
diff --git a/tests/language_2/prefix/prefix24_lib2.dart b/tests/language_2/prefix/prefix24_lib2.dart
deleted file mode 100644
index 1a9356700ae..00000000000
--- a/tests/language_2/prefix/prefix24_lib2.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library prefix24_lib2;
-
-bar() => "prefix24_lib2_bar";
diff --git a/tests/language_2/prefix/prefix24_lib3.dart b/tests/language_2/prefix/prefix24_lib3.dart
deleted file mode 100644
index 5a41739a8ee..00000000000
--- a/tests/language_2/prefix/prefix24_lib3.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library prefix24_lib3;
-
-class X {
-  static bar() => "static method bar of class X";
-}
diff --git a/tests/language_2/prefix/prefix24_test.dart b/tests/language_2/prefix/prefix24_test.dart
deleted file mode 100644
index da8f1f3698e..00000000000
--- a/tests/language_2/prefix/prefix24_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library prefix24_test;
-
-import "package:expect/expect.dart";
-
-// Import a library that contains library prefix X.
-import "prefix24_lib1.dart";
-
-// Import a library that declares class X.
-import "prefix24_lib3.dart";
-
-// Check that the library prefix X that is used in library prefix24_lib1
-// remains private to that library and does not collide with class X
-// defined in (and imported from) prefix24_lib3;
-
-main() {
-  Expect.equals("static method bar of class X", X.bar());
-  Expect.equals("prefix24_lib2_bar", lib1_foo());
-}
diff --git a/tests/language_2/prefix/prefix_test.dart b/tests/language_2/prefix/prefix_test.dart
deleted file mode 100644
index a5341d68e7f..00000000000
--- a/tests/language_2/prefix/prefix_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library PrefixTest.dart;
-
-import "package:expect/expect.dart";
-import "test1.dart";
-
-class PrefixTest {
-  static testMain() {
-    Expect.equals(Prefix.getSource(), Prefix.getImport() + 1);
-  }
-}
-
-main() {
-  PrefixTest.testMain();
-}
diff --git a/tests/language_2/prefix/shadow_runtime_test.dart b/tests/language_2/prefix/shadow_runtime_test.dart
deleted file mode 100644
index abab315a9ac..00000000000
--- a/tests/language_2/prefix/shadow_runtime_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Type parameters can shadow a library prefix.
-
-import "package:expect/expect.dart";
-import "../library10.dart" as T;
-import "../library10.dart" as lib10;
-
-class P<T> {
-  test() {
-
-  }
-}
-
-main() {
-  new P<int>().test();
-
-  {
-    // Variables in the local scope hide the library prefix.
-
-    var result = 0;
-    result = lib10.Library10.static_fld;
-    Expect.equals(4, result);
-  }
-
-  {
-    // Shadowing is not an error.
-    var lib10 = 1;
-    Expect.equals(2, lib10 + 1);
-  }
-}
diff --git a/tests/language_2/prefix/shadow_test.dart b/tests/language_2/prefix/shadow_test.dart
deleted file mode 100644
index 118c67acba5..00000000000
--- a/tests/language_2/prefix/shadow_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Type parameters can shadow a library prefix.
-
-import "package:expect/expect.dart";
-import "../library10.dart" as T;
-import "../library10.dart" as lib10;
-
-class P<T> {
-  test() {
-    new T.Library10(10);
-    //  ^
-    // [analyzer] COMPILE_TIME_ERROR.PREFIX_SHADOWED_BY_LOCAL_DECLARATION
-    //    ^
-    // [cfe] Couldn't find constructor 'T.Library10'.
-  }
-}
-
-main() {
-  new P<int>().test();
-
-  {
-    // Variables in the local scope hide the library prefix.
-    var lib10 = 0;
-    var result = 0;
-    result = lib10.Library10.static_fld;
-    //             ^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'Library10' isn't defined for the class 'int'.
-    Expect.equals(4, result);
-  }
-
-  {
-    // Shadowing is not an error.
-    var lib10 = 1;
-    Expect.equals(2, lib10 + 1);
-  }
-}
diff --git a/tests/language_2/prefix/test1.dart b/tests/language_2/prefix/test1.dart
deleted file mode 100644
index 62e6567d615..00000000000
--- a/tests/language_2/prefix/test1.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library PrefixTest1.dart;
-
-import "test2.dart" as prefix;
-
-class Prefix {
-  static const int foo = 43;
-
-  static getSource() {
-    return foo;
-  }
-
-  static getImport() {
-    return prefix.Prefix.foo;
-  }
-}
diff --git a/tests/language_2/prefix/test2.dart b/tests/language_2/prefix/test2.dart
deleted file mode 100644
index 4042663a8fc..00000000000
--- a/tests/language_2/prefix/test2.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library PrefixTest2.dart;
-
-class Prefix {
-  static const int foo = 42;
-}
diff --git a/tests/language_2/prefix/transitive_import_prefix_runtime_test.dart b/tests/language_2/prefix/transitive_import_prefix_runtime_test.dart
deleted file mode 100644
index 78a0ece700d..00000000000
--- a/tests/language_2/prefix/transitive_import_prefix_runtime_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-import "../library10.dart";
-
-main() {
-  // Library prefixes in the imported libraries should not be visible here.
-
-
-
-}
diff --git a/tests/language_2/prefix/transitive_import_prefix_test.dart b/tests/language_2/prefix/transitive_import_prefix_test.dart
deleted file mode 100644
index cd08fe55c30..00000000000
--- a/tests/language_2/prefix/transitive_import_prefix_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-import "../library10.dart";
-
-main() {
-  // Library prefixes in the imported libraries should not be visible here.
-  new lib11.Library11(1);
-  //  ^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-  // [cfe] Couldn't find constructor 'lib11.Library11'.
-  lib11.Library11.static_func();
-//^^^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-// [cfe] Undefined name 'lib11'.
-  lib11.Library11.static_fld;
-//^^^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-// [cfe] Undefined name 'lib11'.
-}
diff --git a/tests/language_2/prefix/transitive_import_runtime_test.dart b/tests/language_2/prefix/transitive_import_runtime_test.dart
deleted file mode 100644
index b098e604996..00000000000
--- a/tests/language_2/prefix/transitive_import_runtime_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Symbols in libraries imported by the prefixed library should not be visible.
-
-import "../library12.dart" as lib12;
-
-main() {
-  // Class should not be visible.
-
-
-  // Variable should not be visible.
-
-}
diff --git a/tests/language_2/prefix/transitive_import_test.dart b/tests/language_2/prefix/transitive_import_test.dart
deleted file mode 100644
index ca407263dd0..00000000000
--- a/tests/language_2/prefix/transitive_import_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Symbols in libraries imported by the prefixed library should not be visible.
-
-import "../library12.dart" as lib12;
-
-main() {
-  // Class should not be visible.
-  new lib12.Library11(1);
-  //        ^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-  // [cfe] Couldn't find constructor 'Library11'.
-
-  // Variable should not be visible.
-  lib12.top_level11;
-  //    ^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_PREFIXED_NAME
-  // [cfe] Undefined name 'top_level11'.
-}
diff --git a/tests/language_2/prefix/unqualified_invocation_runtime_test.dart b/tests/language_2/prefix/unqualified_invocation_runtime_test.dart
deleted file mode 100644
index b74d67167a7..00000000000
--- a/tests/language_2/prefix/unqualified_invocation_runtime_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Validate the following spec text from section 16.14.3 (Unqualified
-// invocation):
-//     An unqualifiedfunction invocation i has the form
-//     id(a1, ..., an, xn+1 : an+1, ..., xn+k : an+k),
-//     where id is an identifier.
-//     If there exists a lexically visible declaration named id, let fid be the
-//   innermost such declaration.  Then:
-//     - If fid is a prefix object, a compile-time error occurs.
-
-import "empty_library.dart" as p;
-
-class Base {
-  void p() {}
-}
-
-class Derived extends Base {
-  void f() {
-
-  }
-}
-
-main() {
-  new Derived().f();
-
-}
diff --git a/tests/language_2/prefix/unqualified_invocation_test.dart b/tests/language_2/prefix/unqualified_invocation_test.dart
deleted file mode 100644
index 8294dfbdaed..00000000000
--- a/tests/language_2/prefix/unqualified_invocation_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Validate the following spec text from section 16.14.3 (Unqualified
-// invocation):
-//     An unqualifiedfunction invocation i has the form
-//     id(a1, ..., an, xn+1 : an+1, ..., xn+k : an+k),
-//     where id is an identifier.
-//     If there exists a lexically visible declaration named id, let fid be the
-//   innermost such declaration.  Then:
-//     - If fid is a prefix object, a compile-time error occurs.
-
-import "empty_library.dart" as p;
-
-class Base {
-  void p() {}
-}
-
-class Derived extends Base {
-  void f() {
-    p();
-//  ^
-// [analyzer] COMPILE_TIME_ERROR.PREFIX_IDENTIFIER_NOT_FOLLOWED_BY_DOT
-// [cfe] A prefix can't be used as an expression.
-  }
-}
-
-main() {
-  new Derived().f();
-  p();
-//^
-// [analyzer] COMPILE_TIME_ERROR.PREFIX_IDENTIFIER_NOT_FOLLOWED_BY_DOT
-// [cfe] A prefix can't be used as an expression.
-}
diff --git a/tests/language_2/prefix/unresolved_class_runtime_test.dart b/tests/language_2/prefix/unresolved_class_runtime_test.dart
deleted file mode 100644
index 32efe0bc60d..00000000000
--- a/tests/language_2/prefix/unresolved_class_runtime_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Unresolved symbols should be reported as an error.
-import "../library12.dart" as lib12;
-
-class Subclass
-
-{}
-
-class Implementer
-
-{}
-
-main() {
-  new Subclass();
-  new Implementer();
-}
diff --git a/tests/language_2/prefix/unresolved_class_test.dart b/tests/language_2/prefix/unresolved_class_test.dart
deleted file mode 100644
index a0e532dd98a..00000000000
--- a/tests/language_2/prefix/unresolved_class_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Unresolved symbols should be reported as an error.
-import "../library12.dart" as lib12;
-
-class Subclass
-    extends lib12.Library13
-    //      ^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.EXTENDS_NON_CLASS
-    // [cfe] Type 'lib12.Library13' not found.
-{}
-
-class Implementer
-    implements lib12.Library13
-    //         ^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.IMPLEMENTS_NON_CLASS
-    // [cfe] Type 'lib12.Library13' not found.
-{}
-
-main() {
-  new Subclass();
-  new Implementer();
-}
diff --git a/tests/language_2/prefix/variable_collision_runtime_test.dart b/tests/language_2/prefix/variable_collision_runtime_test.dart
deleted file mode 100644
index f702e99fe4b..00000000000
--- a/tests/language_2/prefix/variable_collision_runtime_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-import "../library10.dart" as lib10;
-
-// Top level variables cannot shadow library prefixes, they should collide.
-
-
-main() {}
diff --git a/tests/language_2/prefix/variable_collision_test.dart b/tests/language_2/prefix/variable_collision_test.dart
deleted file mode 100644
index 6668d452a5b..00000000000
--- a/tests/language_2/prefix/variable_collision_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-import "../library10.dart" as lib10;
-//                         ^
-// [cfe] 'lib10' is already declared in this scope.
-
-// Top level variables cannot shadow library prefixes, they should collide.
-var lib10;
-//  ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.PREFIX_COLLIDES_WITH_TOP_LEVEL_MEMBER
-
-main() {}
diff --git a/tests/language_2/private/access_lib.dart b/tests/language_2/private/access_lib.dart
deleted file mode 100644
index 3e6ef90d38b..00000000000
--- a/tests/language_2/private/access_lib.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library private;
-
-_function() {}
-
-class _Class {}
-
-class Class {
-  Class._constructor();
-}
diff --git a/tests/language_2/private/access_runtime_test.dart b/tests/language_2/private/access_runtime_test.dart
deleted file mode 100644
index 5b90337302b..00000000000
--- a/tests/language_2/private/access_runtime_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-import 'access_lib.dart';
-import 'access_lib.dart' as private;
-
-main() {
-
-
-
-
-
-
-}
diff --git a/tests/language_2/private/access_test.dart b/tests/language_2/private/access_test.dart
deleted file mode 100644
index 7bc1b6c020d..00000000000
--- a/tests/language_2/private/access_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'access_lib.dart';
-import 'access_lib.dart' as private;
-
-main() {
-  _function();
-//^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_FUNCTION
-// [cfe] Method not found: '_function'.
-  private._function();
-//        ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_FUNCTION
-// [cfe] Method not found: '_function'.
-  new _Class();
-  //  ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-  // [cfe] Couldn't find constructor '_Class'.
-  private._Class();
-//        ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_FUNCTION
-// [cfe] Method not found: '_Class'.
-  new Class._constructor();
-  //        ^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.NEW_WITH_UNDEFINED_CONSTRUCTOR
-  // [cfe] Couldn't find constructor 'Class._constructor'.
-  new private.Class._constructor();
-  //                ^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.NEW_WITH_UNDEFINED_CONSTRUCTOR
-  // [cfe] Couldn't find constructor 'Class._constructor'.
-}
diff --git a/tests/language_2/private/clash_lib.dart b/tests/language_2/private/clash_lib.dart
deleted file mode 100644
index 720336abed7..00000000000
--- a/tests/language_2/private/clash_lib.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library a$_b;
-
-class B {
-  var _c$ = 10; // With library prefix: _a$_b$_c$
-
-  getValueA() {
-    try {} catch (e) {} // no inline
-    return this._c$;
-  }
-}
diff --git a/tests/language_2/private/clash_test.dart b/tests/language_2/private/clash_test.dart
deleted file mode 100644
index 8c719a9501d..00000000000
--- a/tests/language_2/private/clash_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library a;
-
-import 'clash_lib.dart' as lib;
-import 'package:expect/expect.dart';
-
-class A extends lib.B {
-  var _b$_c$ = 100; // With library prefix: _a$_b$_c$
-
-  getValueB() {
-    try {} catch (e) {} // no inline
-    return this._b$_c$;
-  }
-}
-
-main() {
-  A a = new A();
-  Expect.equals(110, a.getValueA() + a.getValueB());
-}
diff --git a/tests/language_2/private/lib.dart b/tests/language_2/private/lib.dart
deleted file mode 100644
index 3c9c5ec5518..00000000000
--- a/tests/language_2/private/lib.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing access to private fields.
-
-// @dart = 2.9
-
-library PrivateLib;
-
-class PrivateLib {
-  final _myPrecious;
-
-  const PrivateLib() : this._myPrecious = "The Ring";
-}
diff --git a/tests/language_2/private/main.dart b/tests/language_2/private/main.dart
deleted file mode 100644
index 6bf7927de64..00000000000
--- a/tests/language_2/private/main.dart
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing access to private fields.
-
-// @dart = 2.9
-
-part of Private3Test.dart;
-
-main() {
-  PrivateMain.main();
-}
-
-class PrivateMain {
-  static const _myPrecious = "A Ring";
-
-  static accessMyPrivates() {
-    var value;
-    value = 0;
-    try {
-      value = _myPrecious;
-    } catch (e) {
-      value = -1;
-    }
-    Expect.equals("A Ring", value);
-  }
-
-  static accessMyLibPrivates() {
-    var value;
-    value = 0;
-    var the_other = new PrivateOther();
-    try {
-      value = the_other._myPrecious;
-    } catch (e, trace) {
-      print(e);
-      print(trace);
-      Expect.equals(true, e is NoSuchMethodError);
-      value = -1;
-    }
-    Expect.equals("Another Ring", value);
-  }
-
-  static accessOtherLibPrivates() {
-    var value;
-    value = 0;
-    var the_other = new PrivateLib();
-    try {
-      value = (the_other as dynamic)._myPrecious;
-    } catch (e, trace) {
-      print(e);
-      print(trace);
-      Expect.equals(true, e is NoSuchMethodError);
-      value = -1;
-    }
-    Expect.equals(-1, value);
-  }
-
-  static main() {
-    accessMyPrivates();
-    accessMyLibPrivates();
-    accessOtherLibPrivates();
-  }
-}
diff --git a/tests/language_2/private/member1_lib.dart b/tests/language_2/private/member1_lib.dart
deleted file mode 100644
index 55b4f73eee7..00000000000
--- a/tests/language_2/private/member1_lib.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'member1_test.dart';
-
-class B extends A {
-  bool _instanceField;
-}
diff --git a/tests/language_2/private/member1_test.dart b/tests/language_2/private/member1_test.dart
deleted file mode 100644
index acd7259f263..00000000000
--- a/tests/language_2/private/member1_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'member1_lib.dart';
-
-class A {}
-
-class Test extends B {
-  test() {
-    _instanceField = true;
-//  ^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-// [cfe] The setter '_instanceField' isn't defined for the class 'Test'.
-  }
-}
-
-void main() {
-  Test().test();
-}
diff --git a/tests/language_2/private/member2_lib.dart b/tests/language_2/private/member2_lib.dart
deleted file mode 100644
index 68acc8d0403..00000000000
--- a/tests/language_2/private/member2_lib.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'member2_test.dart';
-
-class B extends A {
-  static bool _staticField;
-}
diff --git a/tests/language_2/private/member2_test.dart b/tests/language_2/private/member2_test.dart
deleted file mode 100644
index 8b7fff5e428..00000000000
--- a/tests/language_2/private/member2_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'member2_lib.dart';
-
-class A {}
-
-class Test extends B {
-  test() {
-    _staticField = true;
-//  ^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-// [cfe] The setter '_staticField' isn't defined for the class 'Test'.
-  }
-}
-
-void main() {
-  Test().test();
-}
diff --git a/tests/language_2/private/member3_lib.dart b/tests/language_2/private/member3_lib.dart
deleted file mode 100644
index 7d25d0ce2de..00000000000
--- a/tests/language_2/private/member3_lib.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'member3_test.dart';
-
-class B extends A {
-  bool _fun() {
-    return true;
-  }
-}
diff --git a/tests/language_2/private/member3_test.dart b/tests/language_2/private/member3_test.dart
deleted file mode 100644
index fd6e0a0b858..00000000000
--- a/tests/language_2/private/member3_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'member3_lib.dart';
-
-class A {}
-
-class Test extends B {
-  test() {
-    _fun();
-//  ^^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_METHOD
-// [cfe] The method '_fun' isn't defined for the class 'Test'.
-  }
-}
-
-void main() {
-  Test().test();
-}
diff --git a/tests/language_2/private/member_lib_b.dart b/tests/language_2/private/member_lib_b.dart
deleted file mode 100644
index 7442b13fd13..00000000000
--- a/tests/language_2/private/member_lib_b.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library PrivateMemberLibB;
-
-import 'member_test.dart';
-
-class B extends A {
-  bool _instanceField;
-  static bool _staticField;
-  bool _fun1(bool b) {
-    return true;
-  }
-
-  void _fun2() {}
-}
diff --git a/tests/language_2/private/member_test.dart b/tests/language_2/private/member_test.dart
deleted file mode 100644
index 1ea7adce48a..00000000000
--- a/tests/language_2/private/member_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library PrivateMemberLibA;
-
-import 'member_lib_b.dart';
-
-class A {
-  int i;
-  int _instanceField;
-  static int _staticField;
-  int _fun1() {
-    return 1;
-  }
-
-  void _fun2(int i) {}
-}
-
-class Test extends B {
-  test() {
-    i = _instanceField;
-    i = A._staticField;
-    i = _fun1();
-    _fun2(42);
-  }
-}
-
-void main() {
-  new Test().test();
-}
diff --git a/tests/language_2/private/method_tearoff_lib.dart b/tests/language_2/private/method_tearoff_lib.dart
deleted file mode 100644
index ecbbc4bbd11..00000000000
--- a/tests/language_2/private/method_tearoff_lib.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Companion library for private_method_tearoff_test.dart.
-
-class Bar {
-  void _f() {}
-}
-
-String baz(Bar bar) {
-  return bar._f.runtimeType.toString();
-}
diff --git a/tests/language_2/private/method_tearoff_test.dart b/tests/language_2/private/method_tearoff_test.dart
deleted file mode 100644
index 9978b55d8a5..00000000000
--- a/tests/language_2/private/method_tearoff_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'method_tearoff_lib.dart';
-
-// `Bar' contains a private method `_f'. The function `baz' is declared in the
-// same library as `Bar'. Given an subtype of `Bar', it tearoffs `_f' and
-// returns a string representation of its runtime type. For this code to
-// evaluate correctly, the generated Kernel code for `Foo' must contain a no
-// such method forwarder for `_f'.
-
-class Foo implements Bar {}
-
-main() {
-  Expect.equals("() => void", baz(new Foo()));
-}
diff --git a/tests/language_2/private/mixin2_test.dart b/tests/language_2/private/mixin2_test.dart
deleted file mode 100644
index 041c79fd36d..00000000000
--- a/tests/language_2/private/mixin2_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test for testing access to private fields on mixins.
-
-library private_mixin2;
-
-import 'package:expect/expect.dart';
-import 'other_mixin2.dart';
-
-void main() {
-  var c1;
-  c1 = new C1();
-  Expect.throwsNoSuchMethodError(() => c1._field);
-  Expect.throwsNoSuchMethodError(() => c1.field);
-
-  var c2;
-  c2 = new C2();
-  Expect.throwsNoSuchMethodError(() => c2._field);
-  Expect.equals(42, c2.field);
-}
diff --git a/tests/language_2/private/mixin_exception_throw_test.dart b/tests/language_2/private/mixin_exception_throw_test.dart
deleted file mode 100644
index ade4f0462d1..00000000000
--- a/tests/language_2/private/mixin_exception_throw_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for http://dartbug.com/11637
-
-class _C {}
-
-class _E {
-  throwIt() => throw "it";
-}
-
-class _F {
-  throwIt() => throw "IT";
-}
-
-class _D extends _C with _E, _F {}
-
-main() {
-  var d = new _D();
-  try {
-    d.throwIt();
-  } catch (e, s) {
-    print("Exception: $e");
-    print("Stacktrace:\n$s");
-  }
-}
diff --git a/tests/language_2/private/other.dart b/tests/language_2/private/other.dart
deleted file mode 100644
index 6f288821a28..00000000000
--- a/tests/language_2/private/other.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing access to private fields.
-
-// @dart = 2.9
-
-part of Private3Test.dart;
-
-class PrivateOther {
-  final _myPrecious;
-
-  const PrivateOther() : this._myPrecious = "Another Ring";
-}
diff --git a/tests/language_2/private/other_lib.dart b/tests/language_2/private/other_lib.dart
deleted file mode 100644
index df83627506c..00000000000
--- a/tests/language_2/private/other_lib.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test for testing access to private fields.
-library PrivateOther;
-
-import "private_test.dart";
-
-class LibOther3 {
-  static accessFieldA3(var a) => a.fieldA;
-  static accessFieldB3(var b) => b._fieldB;
-  static int c_field1b(c) => c._field1;
-  static int c_field2b(c) => c._field2;
-}
-
-class AImported extends AExposed {
-  AImported() : super();
-  getFieldA() => fieldA;
-}
-
-class C2 extends C1 {
-  int _field1;
-  C2()
-      : _field1 = 99,
-        super();
-
-  field1b() => _field1;
-}
-
-class C4 extends C3 {
-  int _field2;
-  C4()
-      : _field2 = 1024,
-        super();
-
-  field2b() => _field2;
-  field1d() => _field1;
-}
diff --git a/tests/language_2/private/other_library.dart b/tests/language_2/private/other_library.dart
deleted file mode 100644
index 83466b2cadf..00000000000
--- a/tests/language_2/private/other_library.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that inlining in the compiler works with privacy.
-
-library other_library;
-
-// Make [foo] small enough that is can be inlined. Make it call a
-// private method.
-foo(a) => a._bar();
-
-class A {
-  _bar() => 42;
-}
diff --git a/tests/language_2/private/other_mixin2.dart b/tests/language_2/private/other_mixin2.dart
deleted file mode 100644
index 31aa24de1bd..00000000000
--- a/tests/language_2/private/other_mixin2.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test for testing access to private fields on mixins.
-
-library private_mixin2_other;
-
-class C1 {
-  int _field = 42;
-}
-
-class C2 extends Object with C1 {
-  int get field => _field;
-}
diff --git a/tests/language_2/private/private1.dart b/tests/language_2/private/private1.dart
deleted file mode 100644
index e78ddcdac9d..00000000000
--- a/tests/language_2/private/private1.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test for testing access to private fields.
-
-part of PrivateTest.dart;
-
-main() {
-  testPrivateTopLevel();
-  testPrivateClasses();
-}
-
-void expectCatch(f) {
-  bool threw = false;
-  try {
-    f();
-  } catch (e) {
-    threw = true;
-  }
-  Expect.equals(true, threw);
-}
-
-String _private1() => "private1";
-const String _private1Field = "private1Field";
-
-void testPrivateTopLevel() {
-  Expect.equals("private1", _private1());
-  Expect.equals("private2", _private2());
-  Expect.equals("private1Field", _private1Field);
-  Expect.equals("private2Field", _private2Field);
-}
-
-class _A {
-  _A() : fieldA = 499;
-
-  int fieldA;
-}
-
-class AExposed extends _A {
-  AExposed() : super();
-}
-
-class B {
-  int _fieldB;
-  B() : _fieldB = 42;
-}
-
-class C1 {
-  int _field1;
-  C1() : _field1 = 499;
-
-  field1a() => _field1;
-}
-
-class C3 extends C2 {
-  int _field2;
-  C3()
-      : _field2 = 42,
-        super();
-
-  field2a() => _field2;
-  field1c() => _field1;
-}
-
-int c_field1a(c) => c._field1;
-int c_field2a(c) => c._field2;
-
-int _field1FromNewC4() => new C4()._field1;
-int _field2FromNewC4() => new C4()._field2;
-
-void testPrivateClasses() {
-  _A a = new _A();
-  Expect.equals(499, a.fieldA);
-  Expect.equals(499, accessFieldA2(a));
-  Expect.equals(499, LibOther3.accessFieldA3(a));
-
-  var a2 = new AImported();
-  Expect.equals(499, a2.getFieldA());
-
-  B b = new B();
-  Expect.equals(42, b._fieldB);
-  Expect.equals(42, accessFieldB2(b));
-  expectCatch(() => LibOther3.accessFieldB3(b));
-
-  C4 c = new C4();
-  Expect.equals(499, c._field1);
-  Expect.equals(499, c_field1a(c));
-  Expect.equals(499, c.field1a());
-  Expect.equals(42, c._field2);
-  Expect.equals(42, c_field2a(c));
-  Expect.equals(42, c.field2a());
-  Expect.equals(99, LibOther3.c_field1b(c));
-  Expect.equals(99, c.field1b());
-  Expect.equals(1024, LibOther3.c_field2b(c));
-  Expect.equals(1024, c.field2b());
-  Expect.equals(499, c.field1c());
-  Expect.equals(99, c.field1d());
-  Expect.equals(499, _field1FromNewC4());
-  Expect.equals(42, _field2FromNewC4());
-}
diff --git a/tests/language_2/private/private2.dart b/tests/language_2/private/private2.dart
deleted file mode 100644
index 252babd302b..00000000000
--- a/tests/language_2/private/private2.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test for testing access to private fields.
-
-part of PrivateTest.dart;
-
-String _private2() {
-  return "private2";
-}
-
-const String _private2Field = "private2Field";
-
-accessFieldA2(_A a) {
-  return a.fieldA;
-}
-
-accessFieldB2(B b) {
-  return b._fieldB;
-}
diff --git a/tests/language_2/private/private2_lib.dart b/tests/language_2/private/private2_lib.dart
deleted file mode 100644
index 46cffbdd572..00000000000
--- a/tests/language_2/private/private2_lib.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing access to private fields across class hierarchies.
-
-// @dart = 2.9
-
-library Private2Lib;
-
-import "private2_test.dart";
-
-class B extends A {
-  B() : super();
-}
diff --git a/tests/language_2/private/private2_main.dart b/tests/language_2/private/private2_main.dart
deleted file mode 100644
index 852462e5a48..00000000000
--- a/tests/language_2/private/private2_main.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing access to private fields across class hierarchies.
-
-// @dart = 2.9
-
-part of Private2Test;
-
-class A {
-  var _f;
-  var g;
-  A()
-      : _f = 42,
-        g = 43;
-}
-
-class C extends B {
-  C() : super();
-}
-
-main() {
-  var a = new A();
-  print(a.g);
-  print(a._f);
-  var o = new C();
-  print(o.g); // Access to public field in A.
-  print(o._f); // Access to private field in A is allowed.
-}
diff --git a/tests/language_2/private/private2_test.dart b/tests/language_2/private/private2_test.dart
deleted file mode 100644
index b2d091561c0..00000000000
--- a/tests/language_2/private/private2_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing access to private fields across class hierarchies.
-
-// @dart = 2.9
-
-library Private2Test;
-
-import "private2_lib.dart";
-part "private2_main.dart";
diff --git a/tests/language_2/private/private3_test.dart b/tests/language_2/private/private3_test.dart
deleted file mode 100644
index b83b7aedd8e..00000000000
--- a/tests/language_2/private/private3_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing access to private fields.
-
-// @dart = 2.9
-
-library Private3Test.dart;
-
-import "package:expect/expect.dart";
-import "lib.dart";
-
-part "main.dart";
-part "other.dart";
diff --git a/tests/language_2/private/private4_test.dart b/tests/language_2/private/private4_test.dart
deleted file mode 100644
index b282b7caf0d..00000000000
--- a/tests/language_2/private/private4_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that inlining in the compiler works with privacy.
-
-library private4_test;
-
-import "package:expect/expect.dart";
-import 'other_library.dart';
-
-main() {
-  Expect.equals(42, foo(new A()));
-  Expect.throwsNoSuchMethodError(() => foo(new B()));
-}
-
-class B {
-  _bar() => 42;
-}
diff --git a/tests/language_2/private/private_test.dart b/tests/language_2/private/private_test.dart
deleted file mode 100644
index d8f3ba5af3a..00000000000
--- a/tests/language_2/private/private_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test for testing access to private fields.
-
-library PrivateTest.dart;
-
-import "package:expect/expect.dart";
-import "other_lib.dart";
-part "private1.dart";
-part "private2.dart";
diff --git a/tests/language_2/private/selector_lib.dart b/tests/language_2/private/selector_lib.dart
deleted file mode 100644
index a0900a7a439..00000000000
--- a/tests/language_2/private/selector_lib.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library private_selector_lib;
-
-import 'selector_test.dart';
-
-bool executed = false;
-
-class A {
-  public() {
-    new B()._private();
-  }
-
-  _private() {
-    executed = true;
-  }
-}
diff --git a/tests/language_2/private/selector_test.dart b/tests/language_2/private/selector_test.dart
deleted file mode 100644
index d0d36d8b6c0..00000000000
--- a/tests/language_2/private/selector_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library private_selector_test;
-
-import "package:expect/expect.dart";
-import 'selector_lib.dart';
-
-class B extends A {}
-
-main() {
-  new A().public();
-  Expect.isTrue(executed);
-}
diff --git a/tests/language_2/private/super_constructor_lib.dart b/tests/language_2/private/super_constructor_lib.dart
deleted file mode 100644
index 5da18fa9786..00000000000
--- a/tests/language_2/private/super_constructor_lib.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library private_super_constructor_lib;
-
-class B {
-  B();
-  B._foo();
-}
diff --git a/tests/language_2/private/super_constructor_runtime_test.dart b/tests/language_2/private/super_constructor_runtime_test.dart
deleted file mode 100644
index ddba3380352..00000000000
--- a/tests/language_2/private/super_constructor_runtime_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-library private_super_constructor_test;
-
-import 'super_constructor_lib.dart';
-
-class C extends B {
-
-}
-
-main() => new C();
diff --git a/tests/language_2/private/super_constructor_test.dart b/tests/language_2/private/super_constructor_test.dart
deleted file mode 100644
index 68905a60b79..00000000000
--- a/tests/language_2/private/super_constructor_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library private_super_constructor_test;
-
-import 'super_constructor_lib.dart';
-
-class C extends B {
-  C() : super._foo();
-  //    ^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_CONSTRUCTOR_IN_INITIALIZER
-  // [cfe] Superclass has no constructor named 'B._foo'.
-}
-
-main() => new C();
diff --git a/tests/language_2/propagate/argument_type_check_test.dart b/tests/language_2/propagate/argument_type_check_test.dart
deleted file mode 100644
index beaf22d668f..00000000000
--- a/tests/language_2/propagate/argument_type_check_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.equals("str", foo("str"));
-}
-
-foo(y) {
-  dynamic x = 3;
-  for (int i = 0; i < 2; i++) {
-    // Make sure that we don't think that the type of x is necessarily
-    // a number and optimize the x + y expression based on that. The
-    // value of x changes later...
-    if (i == 1) return bar(x + y);
-    x = new A();
-  }
-}
-
-bar(t) => t;
-
-class A {
-  A() {}
-  operator +(x) => x;
-}
diff --git a/tests/language_2/propagate/assert_assignable_test.dart b/tests/language_2/propagate/assert_assignable_test.dart
deleted file mode 100644
index 58adf6487b1..00000000000
--- a/tests/language_2/propagate/assert_assignable_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check that type of the AssertAssignable is recomputed correctly.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  final p;
-  final _b;
-
-  b() {
-    try {
-      return _b;
-    } catch (e) {}
-  }
-
-  A(this.p, this._b);
-}
-
-class B extends A {
-  B(p, b) : super(p, b);
-}
-
-bar(v) {
-  for (var x = v; x != null; x = x.p) {
-    if (x.b()) {
-      return x;
-    }
-  }
-  return null;
-}
-
-foo(v) {
-  A x = bar(v);
-  return x != null;
-}
-
-main() {
-  final a = new A(new B(new A("haha", true), false), false);
-
-  for (var i = 0; i < 20; i++) {
-    Expect.isTrue(foo(a));
-  }
-  Expect.isTrue(foo(a));
-}
diff --git a/tests/language_2/propagate/in_for_update_test.dart b/tests/language_2/propagate/in_for_update_test.dart
deleted file mode 100644
index e72058d8118..00000000000
--- a/tests/language_2/propagate/in_for_update_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check that phi type computation in the Dart2Js compiler does the
-// correct thing.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-bar() => 'foo';
-
-main() {
-  Expect.throws(foo1);
-  Expect.throws(foo2);
-}
-
-foo1() {
-  var a = bar();
-  for (;; a = 1 + a) {
-    if (a != 'foo') return;
-  }
-}
-
-foo2() {
-  var a = bar();
-  for (;; a = 1 + a) {
-    if (a != 'foo') break;
-  }
-}
diff --git a/tests/language_2/propagate/past_constant_test.dart b/tests/language_2/propagate/past_constant_test.dart
deleted file mode 100644
index 9e1f7f7a168..00000000000
--- a/tests/language_2/propagate/past_constant_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-foo(x) => x;
-
-check(y) {
-  Expect.equals('foo', y);
-}
-
-main() {
-  var x = foo('foo');
-  var y = foo(x);
-  x = 'constant';
-  check(
-      y); // 'y' should not propagate here unless reference to 'x' is rewritten
-  foo(x);
-  foo(x);
-}
diff --git a/tests/language_2/propagate/phi_test.dart b/tests/language_2/propagate/phi_test.dart
deleted file mode 100644
index c49c6d2f7ee..00000000000
--- a/tests/language_2/propagate/phi_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check that phi type computation in the Dart2Js compiler does the
-// correct thing.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-bar() => 490;
-bar2() => 0;
-
-foo(b) {
-  var x = bar();
-  var x2 = x;
-  if (b) x2 = bar2();
-  var x3 = 9 + x; // Guarantees that x is a number. Dart2js propagated the
-  // type information back to the phi (for x2).
-  return x2 + x3;
-}
-
-main() {
-  Expect.equals(499, foo(true));
-}
diff --git a/tests/language_2/propagate/propagate2_test.dart b/tests/language_2/propagate/propagate2_test.dart
deleted file mode 100644
index 5c17bd3c215..00000000000
--- a/tests/language_2/propagate/propagate2_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to infinite loop on
-// speculatively propagating types.
-
-class Bar {
-  noSuchMethod(e) => null;
-}
-
-main() {
-  var d = new Bar();
-
-  while (false) {
-    // [input] will change from indexable to unknown: the use line 20
-    // changes its decision because [a2] changes its type from unknown to
-    // null.
-    var input = ((x) {})(null);
-    var p2 = input.keys.firstWhere(null);
-    var a2 = input.keys.firstWhere(null);
-    print(input[a2] == p2);
-  }
-}
diff --git a/tests/language_2/propagate/propagate3_test.dart b/tests/language_2/propagate/propagate3_test.dart
deleted file mode 100644
index d2fa1f2a3c6..00000000000
--- a/tests/language_2/propagate/propagate3_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to generate wrong code for
-// it. The bug happened in the SSA type propagation.
-
-class A {
-  next() => new B();
-  doIt() => null;
-  bool get isEmpty => false;
-  foo() => 42;
-  bar() => 54;
-}
-
-bool entered = false;
-
-class B extends A {
-  foo() => 54;
-  doIt() => new A();
-  bool get isEmpty => true;
-  bar() => entered = true;
-}
-
-// (1) At initialization phase of the type propagation, [a] would be
-//     marked as [exact A].
-// (2) Will make the loop phi [b] typed [null, exact A].
-// (3) Will create a [HTypeKnown] [exact A] for [b].
-// (4) Will create a [HTypeKnown] [exact A] for [b] and update users
-//     of [b] to use this [HTypeKnown] instead.
-// (5) [a] will be updated to [subclass A].
-// (6) Will change the [HTypeKnown] of [b] from [exact A] to [subclass A].
-// (7) Receiver is [subclass A] and it will refine it to
-//     [subclass A]. We used to wrongly assume there was
-//     no need to update the [HTypeKnown] created in (3).
-// (8) Consider that bar is called on an [exact A] (the [HTypeKnown]
-//     created in (3)) and remove the call because it does not have
-//     any side effects.
-
-main() {
-  var a = new A();
-  for (var i in [42]) {
-    a = a.next();
-  }
-
-  // (1, 5)
-
-  var b = a;
-  while (b.isEmpty) {
-    // (4, 6)
-    b.foo(); // (3, 7)
-    b.bar(); // (8)
-    b = b.doIt(); // (2)
-  }
-
-  if (!entered) throw 'Test failed';
-}
diff --git a/tests/language_2/propagate/type_propagation_test.dart b/tests/language_2/propagate/type_propagation_test.dart
deleted file mode 100644
index 0b22d9a3c3f..00000000000
--- a/tests/language_2/propagate/type_propagation_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// dart2js used to have an infinite loop in its type propagation
-// algorithm due to types becoming broader instead of narrower.
-
-import "package:expect/expect.dart";
-
-class A {
-  resolveSend(node) {
-    if (node == null) {
-      return [new B()][0];
-    } else {
-      return [new B(), new A()][1];
-    }
-  }
-
-  visitSend(node) {
-    var target = resolveSend(node);
-
-    if (false) {
-      if (false) {
-        target = target.getter;
-        if (false) {
-          target = new Object();
-        }
-      }
-    }
-    return true ? target : null;
-  }
-}
-
-var a = 43;
-
-class B {
-  var getter = a == 42 ? new A() : null;
-}
-
-main() {
-  Expect.isTrue(new A().visitSend(new A()) is A);
-  Expect.isTrue(new A().visitSend(null) is B);
-}
diff --git a/tests/language_2/redirecting/constructor_initializer_test.dart b/tests/language_2/redirecting/constructor_initializer_test.dart
deleted file mode 100644
index 851f3241e0f..00000000000
--- a/tests/language_2/redirecting/constructor_initializer_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var string = '';
-
-append(x) {
-  string += x;
-  return x;
-}
-
-class A {
-  var x = append('x');
-  var y;
-  var z;
-
-  // Should append y but not yet x.
-  A() : this.foo(append('y'));
-
-  // Append x and z.
-  A.foo(this.y) : z = append('z');
-}
-
-class B extends A {
-  var w;
-
-  // Call the redirecting constructor using super.
-  B()
-      : w = append('w'),
-        super();
-}
-
-main() {
-  string = '';
-  new A();
-  Expect.equals('yxz', string);
-
-  string = '';
-  new B();
-  Expect.equals('wyxz', string);
-}
diff --git a/tests/language_2/redirecting/factory_bounds_test.dart b/tests/language_2/redirecting/factory_bounds_test.dart
deleted file mode 100644
index f8fcca9520a..00000000000
--- a/tests/language_2/redirecting/factory_bounds_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Bounds checking on redirecting factories.
-
-class Foo<T> {}
-
-class Baz<T> {}
-
-class Foobar<T> implements Foo<T> {}
-
-class Bar<
-          T // A comment to prevent dart format from joining the lines.
-          extends Foo<T>      //# 00: ok
-          extends Baz<Foo<T>> //# 01: compile-time error
-          extends Foobar<T>   //# 02: compile-time error
-  > {
-  Bar.named();
-  factory Bar() = Qux<T>;
-}
-
-class Qux<
-          T // A comment to prevent dart format from joining the lines.
-          extends Foo<T> //# 00: continued
-          extends Foo<T> //# 01: continued
-          extends Foo<T> //# 02: continued
-         > extends Bar<T> {
-  Qux() : super.named();
-}
-
-
-
-class A<T extends int> {
-  factory A() = B<
-                  T // A comment to prevent dart format from joining the lines.
-                  , int //# 03: compile-time error
-                  , String //# 04: ok
-                 >;
-}
-
-class B<T extends int
-        , S extends String //# 03: continued
-        , S extends String //# 04: continued
-       > implements A<T> {}
-
-void main() {
-  new Bar<Null>();
-  new A<int>();
-}
diff --git a/tests/language_2/redirecting/factory_default_values_runtime_test.dart b/tests/language_2/redirecting/factory_default_values_runtime_test.dart
deleted file mode 100644
index 3120a387764..00000000000
--- a/tests/language_2/redirecting/factory_default_values_runtime_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that parameter default values are disallowed in a redirecting factory.
-
-import "package:expect/expect.dart";
-
-class A {
-  A(this.a, [this.b = 0]);
-  factory A.f(int a) = A;
-
-
-
-  int a;
-  int b;
-}
-
-main() {
-  var x = new A.f(42);
-  Expect.equals(x.a, 42);
-  Expect.equals(x.b, 0);
-
-
-}
diff --git a/tests/language_2/redirecting/factory_default_values_test.dart b/tests/language_2/redirecting/factory_default_values_test.dart
deleted file mode 100644
index d4709b92e9f..00000000000
--- a/tests/language_2/redirecting/factory_default_values_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that parameter default values are disallowed in a redirecting factory.
-
-import "package:expect/expect.dart";
-
-class A {
-  A(this.a, [this.b = 0]);
-  factory A.f(int a) = A;
-  factory A.g(int a, [int b = 0]) = A;
-  //                      ^
-  // [analyzer] COMPILE_TIME_ERROR.DEFAULT_VALUE_IN_REDIRECTING_FACTORY_CONSTRUCTOR
-  //                          ^
-  // [cfe] Can't have a default value here because any default values of 'A' would be used instead.
-  factory A.h(int a, {int b: 0}) = A;
-  //                      ^
-  // [analyzer] COMPILE_TIME_ERROR.DEFAULT_VALUE_IN_REDIRECTING_FACTORY_CONSTRUCTOR
-  //                         ^
-  // [cfe] Can't have a default value here because any default values of 'A' would be used instead.
-  //                               ^
-  // [analyzer] COMPILE_TIME_ERROR.REDIRECT_TO_INVALID_FUNCTION_TYPE
-  // [cfe] The constructor function type 'A Function(int, [int])' isn't a subtype of 'A Function(int, {int b})'.
-
-  int a;
-  int b;
-}
-
-main() {
-  var x = new A.f(42);
-  Expect.equals(x.a, 42);
-  Expect.equals(x.b, 0);
-
-  var y = new A.f(42, 43);
-  //                  ^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS
-  //             ^^^^^^^^
-  // [cfe] Too many positional arguments: 1 allowed, but 2 found.
-}
diff --git a/tests/language_2/redirecting/factory_incompatible_signature_runtime_test.dart b/tests/language_2/redirecting/factory_incompatible_signature_runtime_test.dart
deleted file mode 100644
index 04743063ffb..00000000000
--- a/tests/language_2/redirecting/factory_incompatible_signature_runtime_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that incompatible signatures in a forwarding factory
-// constructor leads to a compile-time error.
-
-import "package:expect/expect.dart";
-
-class A {
-  A(a, b);
-
-}
-
-main() {
-
-}
diff --git a/tests/language_2/redirecting/factory_incompatible_signature_test.dart b/tests/language_2/redirecting/factory_incompatible_signature_test.dart
deleted file mode 100644
index aef50104be3..00000000000
--- a/tests/language_2/redirecting/factory_incompatible_signature_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that incompatible signatures in a forwarding factory
-// constructor leads to a compile-time error.
-
-import "package:expect/expect.dart";
-
-class A {
-  A(a, b);
-  factory A.f() = A;
-  //              ^
-  // [analyzer] COMPILE_TIME_ERROR.REDIRECT_TO_INVALID_FUNCTION_TYPE
-  // [cfe] The constructor function type 'A Function(dynamic, dynamic)' isn't a subtype of 'A Function()'.
-}
-
-main() {
-  new A.f();
-}
diff --git a/tests/language_2/redirecting/factory_infinite_steps_test.dart b/tests/language_2/redirecting/factory_infinite_steps_test.dart
deleted file mode 100644
index 8cc9443b976..00000000000
--- a/tests/language_2/redirecting/factory_infinite_steps_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// From Dart Language Specification, 0.12 M1, "7.6.2 Factories": It is
-// a compile-time error if a redirecting factory constructor does not
-// redirect to a non-redirecting factory constructor or to a
-// generative constructor in a finite number of steps.
-
-// TODO(ahe): The above specification will probably change to
-// something like: "It is a compile-time error if a redirecting
-// factory constructor redirects to itself, either directly or
-// indirectly via a sequence of redirections."
-
-class Foo extends Bar {
-  factory Foo() = Bar; //# 01: compile-time error
-}
-
-class Bar {
-  factory Bar() = Foo; //# 02: compile-time error
-}
-
-main() {
-  new Foo();
-}
diff --git a/tests/language_2/redirecting/factory_long_test.dart b/tests/language_2/redirecting/factory_long_test.dart
deleted file mode 100644
index e1486cd28d2..00000000000
--- a/tests/language_2/redirecting/factory_long_test.dart
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test long substitution of long redirection chains.
-
-import 'package:expect/expect.dart';
-
-class C {
-  const factory C() = D<int>;
-}
-
-class D<T> implements C {
-  const factory D() = E<double, T>;
-}
-
-class E<S, T> implements D<T> {
-  final field = 42;
-  const E();
-}
-
-class X<T> {
-  const factory X() = Y<T>;
-}
-
-class X1<T1> {
-  const factory X1() = Y<T1>;
-}
-
-class X2 {
-  const factory X2() = Y<int>;
-}
-
-class Y<S> implements X<S>, X1<S>, X2 {
-  const factory Y() = Y1<S>;
-}
-
-class Y1<U> implements Y<U> {
-  const factory Y1() = Z<U>;
-}
-
-class Z<V> implements Y1<V> {
-  final field = 87;
-  const Z();
-}
-
-void main() {
-  testC(new C());
-  testC(const C());
-  testZ(new X<int>());
-  testZ(new X1<int>());
-  testZ(new X2());
-  testZ(const X<int>());
-  testZ(const X1<int>());
-  testZ(const X2());
-}
-
-void testC(var c) {
-  Expect.isTrue(c is C);
-  Expect.isTrue(c is D<int>);
-  Expect.isTrue(c is! D<String>);
-  Expect.isTrue(c is E<double, int>);
-  Expect.isTrue(c is! E<String, int>);
-  Expect.isTrue(c is! E<double, String>);
-  Expect.equals(42, c.field);
-}
-
-void testZ(var z) {
-  Expect.isTrue(z is X<int>);
-  Expect.isTrue(z is! X<String>);
-  Expect.isTrue(z is X1<int>);
-  Expect.isTrue(z is! X1<String>);
-  Expect.isTrue(z is X2);
-  Expect.isTrue(z is Y<int>);
-  Expect.isTrue(z is! Y<String>);
-  Expect.isTrue(z is Y1<int>);
-  Expect.isTrue(z is! Y1<String>);
-  Expect.isTrue(z is Z<int>);
-  Expect.isTrue(z is! Z<String>);
-  Expect.equals(87, z.field);
-}
diff --git a/tests/language_2/redirecting/factory_malbounded_runtime_test.dart b/tests/language_2/redirecting/factory_malbounded_runtime_test.dart
deleted file mode 100644
index 78c6f990d0e..00000000000
--- a/tests/language_2/redirecting/factory_malbounded_runtime_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Foo<T> {
-  factory Foo() = Bar<T>;
-  Foo.create() {}
-}
-
-class Bar<
-    T
-
-    > extends Foo<T> {
-  factory Bar() {
-    return new Bar<T>.create();
-  }
-
-  Bar.create() : super.create() {}
-}
-
-main() {
-  new Foo<String>();
-}
diff --git a/tests/language_2/redirecting/factory_malbounded_test.dart b/tests/language_2/redirecting/factory_malbounded_test.dart
deleted file mode 100644
index 24225b76b57..00000000000
--- a/tests/language_2/redirecting/factory_malbounded_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Foo<T> {
-  factory Foo() = Bar<T>;
-  //              ^
-  // [cfe] The type 'T' doesn't extend 'num'.
-  //                  ^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-  Foo.create() {}
-}
-
-class Bar<T extends num> extends Foo<T> {
-  factory Bar() {
-    return new Bar<T>.create();
-  }
-
-  Bar.create() : super.create() {}
-}
-
-main() {
-  new Foo<String>();
-}
diff --git a/tests/language_2/redirecting/factory_upcast_test.dart b/tests/language_2/redirecting/factory_upcast_test.dart
deleted file mode 100644
index a91daeacb65..00000000000
--- a/tests/language_2/redirecting/factory_upcast_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A implements B {
-  var x;
-  A(Object this.x);
-}
-
-class B {
-  factory B(String s) = A;
-}
-
-main() {
-  B(42 as dynamic); //# 01: runtime error
-}
diff --git a/tests/language_2/reg_exp/reg_exp2_test.dart b/tests/language_2/reg_exp/reg_exp2_test.dart
deleted file mode 100644
index 50f061d93e6..00000000000
--- a/tests/language_2/reg_exp/reg_exp2_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing regular expressions in Dart.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class RegExp2Test {
-  static String findImageTag_(String text, String extensions) {
-    final re = new RegExp('src="(http://\\S+\\.(${extensions}))"');
-    print('REGEXP findImageTag_ $extensions text: \n$text');
-    final match = re.firstMatch(text);
-    print('REGEXP findImageTag_ $extensions SUCCESS');
-    if (match != null) {
-      return match[1];
-    } else {
-      return null;
-    }
-  }
-
-  static testMain() {
-    String text =
-        '''<img src="http://cdn.archinect.net/images/514x/c0/c0p3qo202oxp0e6z.jpg" width="514" height="616" border="0" title="" alt=""><em><p>My last entry was in December of 2009. I suppose I never was particularly good about updating this thing, but it seems a bit ridiculous that I couldn't be bothered to post once about the many, many things that have gone on since then. My apologies. I guess I could start by saying that the world looks like a very different place than it did back in second year.</p></em>
-
-''';
-    String extensions = 'jpg|jpeg|png';
-    String tag = findImageTag_(text, extensions);
-    Expect.isNotNull(tag);
-  }
-}
-
-main() {
-  RegExp2Test.testMain();
-}
diff --git a/tests/language_2/reg_exp/reg_exp3_test.dart b/tests/language_2/reg_exp/reg_exp3_test.dart
deleted file mode 100644
index d39faae22f5..00000000000
--- a/tests/language_2/reg_exp/reg_exp3_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing regular expressions in Dart.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class RegExp3Test {
-  static testMain() {
-    var i = 2000;
-    try {
-      RegExp exp = new RegExp("[");
-      i = 100; // Should not reach here.
-    } on FormatException catch (e) {
-      i = 0;
-    }
-    Expect.equals(0, i);
-  }
-}
-
-main() {
-  RegExp3Test.testMain();
-}
diff --git a/tests/language_2/reg_exp/reg_exp4_test.dart b/tests/language_2/reg_exp/reg_exp4_test.dart
deleted file mode 100644
index 941118cf4a3..00000000000
--- a/tests/language_2/reg_exp/reg_exp4_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing regular expressions in Dart.
-
-// @dart = 2.9
-
-class RegEx2Test {
-  static void testMain() {
-    final helloPattern = new RegExp("with (hello)");
-    String s = "this is a string with hello somewhere";
-    Match match = helloPattern.firstMatch(s);
-    if (match != null) {
-      print("got match");
-      int groupCount = match.groupCount;
-      print("groupCount is $groupCount");
-      print("group 0 is ${match.group(0)}");
-      print("group 1 is ${match.group(1)}");
-    } else {
-      print("match not round");
-    }
-    print("done");
-  }
-}
-
-main() {
-  RegEx2Test.testMain();
-}
diff --git a/tests/language_2/reg_exp/reg_exp_test.dart b/tests/language_2/reg_exp/reg_exp_test.dart
deleted file mode 100644
index d83588de6d9..00000000000
--- a/tests/language_2/reg_exp/reg_exp_test.dart
+++ /dev/null
@@ -1,86 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing regular expressions in Dart.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  RegExp exp = new RegExp(r"(\w+)");
-  String str = "Parse my string";
-  List<Match> matches = exp.allMatches(str).toList();
-  Expect.equals(3, matches.length);
-  Expect.equals("Parse", matches[0].group(0));
-  Expect.equals("my", matches[1].group(0));
-  Expect.equals("string", matches[2].group(0));
-
-  // Check that allMatches progresses correctly for empty matches, and that
-  // it includes the empty match at the end position.
-  exp = new RegExp("a?");
-  str = "babba";
-  Expect.listEquals(["", "a", "", "", "a", ""],
-      exp.allMatches(str).map((x) => x[0]).toList());
-
-  // Check that allMatches works with optional start index.
-  exp = new RegExp("as{2}");
-  str = "assassin";
-  Expect.equals(2, exp.allMatches(str).length);
-  Expect.equals(2, exp.allMatches(str, 0).length);
-  Expect.equals(1, exp.allMatches(str, 1).length);
-  Expect.equals(0, exp.allMatches(str, 4).length);
-  Expect.equals(0, exp.allMatches(str, str.length).length);
-  Expect.throws(() => exp.allMatches(str, -1));
-  Expect.throws(() => exp.allMatches(str, str.length + 1));
-
-  exp = new RegExp(".*");
-  Expect.equals("", exp.allMatches(str, str.length).single[0]);
-
-  // The "^" must only match at the beginning of the string.
-  // Using a start-index doesn't change where the string starts.
-  exp = new RegExp("^ass");
-  Expect.equals(1, exp.allMatches(str, 0).length);
-  Expect.equals(0, exp.allMatches(str, 3).length);
-
-  // Regression test for http://dartbug.com/2980
-  exp = new RegExp("^", multiLine: true); // Any zero-length match will work.
-  str = "foo\nbar\nbaz";
-  Expect.equals(" foo\n bar\n baz", str.replaceAll(exp, " "));
-
-  exp = new RegExp(r"(\w+)");
-  Expect.isNull(exp.matchAsPrefix(" xyz ab"));
-  Expect.isNull(exp.matchAsPrefix(" xyz ab", 0));
-
-  var m = exp.matchAsPrefix(" xyz ab", 1);
-  Expect.equals("xyz", m[0]);
-  Expect.equals("xyz", m[1]);
-  Expect.equals(1, m.groupCount);
-
-  m = exp.matchAsPrefix(" xyz ab", 2);
-  Expect.equals("yz", m[0]);
-  Expect.equals("yz", m[1]);
-  Expect.equals(1, m.groupCount);
-
-  m = exp.matchAsPrefix(" xyz ab", 3);
-  Expect.equals("z", m[0]);
-  Expect.equals("z", m[1]);
-  Expect.equals(1, m.groupCount);
-
-  Expect.isNull(exp.matchAsPrefix(" xyz ab", 4));
-
-  m = exp.matchAsPrefix(" xyz ab", 5);
-  Expect.equals("ab", m[0]);
-  Expect.equals("ab", m[1]);
-  Expect.equals(1, m.groupCount);
-
-  m = exp.matchAsPrefix(" xyz ab", 6);
-  Expect.equals("b", m[0]);
-  Expect.equals("b", m[1]);
-  Expect.equals(1, m.groupCount);
-
-  Expect.isNull(exp.matchAsPrefix(" xyz ab", 7));
-
-  Expect.throws(() => exp.matchAsPrefix(" xyz ab", -1));
-  Expect.throws(() => exp.matchAsPrefix(" xyz ab", 8));
-}
diff --git a/tests/language_2/regress/r24720_test.dart b/tests/language_2/regress/r24720_test.dart
deleted file mode 100644
index c5fd87cfa9a..00000000000
--- a/tests/language_2/regress/r24720_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for r24720.
-
-import 'package:expect/expect.dart';
-
-class A<T> {}
-
-class B extends A<int> {
-  B() : this.foo();
-  B.foo();
-}
-
-main() {
-  Expect.isTrue(new B() is B);
-  Expect.isTrue(new B() is A<int>);
-  Expect.isFalse(new B() is A<String>);
-}
diff --git a/tests/language_2/regress/regress10204_test.dart b/tests/language_2/regress/regress10204_test.dart
deleted file mode 100644
index 734ca2762c5..00000000000
--- a/tests/language_2/regress/regress10204_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to miscompile
-// [A.visitInvokeDynamicMethod].
-
-import "package:expect/expect.dart";
-
-var a = 2;
-
-class Tupe {
-  const Tupe();
-  get instructionType => a == 2 ? this : new A();
-  refine(a, b) => '$a$b';
-}
-
-class Node {
-  final selector = null;
-  var inputs = {"a": const Tupe(), "b": const Tupe()};
-  bool isCallOnInterceptor = false;
-
-  getDartReceiver() {
-    return isCallOnInterceptor ? inputs["a"] : inputs["b"];
-  }
-}
-
-class A {
-  visitInvokeDynamicMethod(node) {
-    var receiverType = node.getDartReceiver().instructionType;
-    return receiverType.refine(node.selector, node.selector);
-  }
-}
-
-main() {
-  Expect.equals(
-      'nullnull', [new A()].last.visitInvokeDynamicMethod(new Node()));
-}
diff --git a/tests/language_2/regress/regress10321_test.dart b/tests/language_2/regress/regress10321_test.dart
deleted file mode 100644
index 7632b8da191..00000000000
--- a/tests/language_2/regress/regress10321_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Regression test for dart2js that used to miscompile [A.foo].
-
-var global = 54;
-
-class A {
-  int a = 0;
-  int b = 42;
-  final int c = global;
-  foo() {
-    int start = a - 1;
-    a = 54;
-    if (b == 42) {
-      b = 32;
-    } else {
-      b = 42;
-    }
-    Expect.equals(-1, start);
-  }
-
-  bar() {
-    int start = a - c - 1;
-    a = 42;
-    if (b == 42) {
-      b = 32;
-    } else {
-      b = 42;
-    }
-    Expect.equals(-55, start);
-  }
-}
-
-main() {
-  new A().foo();
-  new A().bar();
-}
diff --git a/tests/language_2/regress/regress10581_test.dart b/tests/language_2/regress/regress10581_test.dart
deleted file mode 100644
index 21eefee32cc..00000000000
--- a/tests/language_2/regress/regress10581_test.dart
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for https://code.google.com/p/dart/issues/detail?id=10581.
-
-import 'package:expect/expect.dart';
-
-abstract class AxesObject {
-  Update();
-}
-
-String result = '';
-
-class Point2DObject extends AxesObject {
-  Update() {
-    result += 'P';
-  }
-}
-
-class BestFitObject extends AxesObject {
-  Update() {
-    result += 'B';
-  }
-}
-
-class Foo {
-  AddAxesObject(type) {
-    AxesObject a = null;
-    switch (type) {
-      case 100:
-        a = new Point2DObject();
-        break;
-      case 200:
-        a = new BestFitObject();
-        break;
-    }
-    if (a != null) {
-      a.Update();
-    }
-  }
-
-  AddAxesObject2(type) {
-    AxesObject a = null;
-    if (type == 100) {
-      a = new Point2DObject();
-    } else if (type == 200) {
-      a = new BestFitObject();
-    }
-    if (a != null) {
-      a.Update();
-    }
-  }
-}
-
-main() {
-  var f = new Foo();
-  f.AddAxesObject(100);
-  f.AddAxesObject(200);
-  f.AddAxesObject2(100);
-  f.AddAxesObject2(200);
-  Expect.equals('PBPB', result);
-}
diff --git a/tests/language_2/regress/regress10721_test.dart b/tests/language_2/regress/regress10721_test.dart
deleted file mode 100644
index cca6c9291b6..00000000000
--- a/tests/language_2/regress/regress10721_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  Expect.equals('', useParameterInClosure(1));
-  Expect.equals(43, updateParameterInClosure(1)());
-}
-
-String useParameterInClosure(arg1, {int arg2}) {
-  if (arg1 is Map) {
-    return arg1.keys.map((key) => arg1[key]).first;
-  } else {
-    return '';
-  }
-}
-
-Function updateParameterInClosure(arg1) {
-  if (arg1 is Map) {
-    return () => arg1 = 42;
-  } else {
-    return () => arg1 = arg1 + 42;
-  }
-}
diff --git a/tests/language_2/regress/regress10747_test.dart b/tests/language_2/regress/regress10747_test.dart
deleted file mode 100644
index 38f6406be9e..00000000000
--- a/tests/language_2/regress/regress10747_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class B<T> {}
-
-class A<T> {
-  var field;
-  A(this.field);
-  asTypeVariable() => field as T;
-  asBOfT() => field as B<T>;
-}
-
-main() {
-  Expect.equals(42, new A<int>(42).asTypeVariable());
-  Expect.throwsTypeError(() => new A<String>(42).asTypeVariable());
-
-  var b = new B<int>();
-  Expect.equals(b, new A<int>(b).asBOfT());
-  Expect.throwsTypeError(() => new A<String>(b).asBOfT());
-}
diff --git a/tests/language_2/regress/regress10783_test.dart b/tests/language_2/regress/regress10783_test.dart
deleted file mode 100644
index 7a5ca314e48..00000000000
--- a/tests/language_2/regress/regress10783_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C {
-  foo(int y) {
-    return y;
-  }
-}
-
-main() {
-  for (var b in [
-    [false, 'pig']
-  ]) {
-    var c;
-    if (b[0]) c = new C();
-    Expect.throwsNoSuchMethodError(() => print(c.foo(b[1])));
-  }
-}
diff --git a/tests/language_2/regress/regress10996_lib.dart b/tests/language_2/regress/regress10996_lib.dart
deleted file mode 100644
index 4dd4507c55e..00000000000
--- a/tests/language_2/regress/regress10996_lib.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library regress_10996_lib;
-
-var a = 3;
-var b = 4;
-var c = 5;
-var d = 6;
diff --git a/tests/language_2/regress/regress10996_test.dart b/tests/language_2/regress/regress10996_test.dart
deleted file mode 100644
index d6f07be8172..00000000000
--- a/tests/language_2/regress/regress10996_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "regress10996_lib.dart" as lib;
-
-foo(a, [b]) {
-  return a + b + lib.a + lib.b;
-}
-
-bar(c, {d}) {
-  return c + d + lib.c + lib.d;
-}
-
-main() {
-  Expect.equals(1 + 2 + 3 + 4, foo(1, 2));
-  Expect.equals(7 + 8 + 3 + 4, foo(7, 8));
-  Expect.equals(3 + 4 + 5 + 6, bar(3, d: 4));
-  Expect.equals(7 + 8 + 5 + 6, bar(7, d: 8));
-}
diff --git a/tests/language_2/regress/regress11010_test.dart b/tests/language_2/regress/regress11010_test.dart
deleted file mode 100644
index 203bdd81b4d..00000000000
--- a/tests/language_2/regress/regress11010_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// We used to have an issue in dart2js where calling a top-level or
-// static field wouldn't register the 'call' selector correctly.
-var caller = new Caller();
-
-class Caller {
-  call(a, b) => a + b;
-}
-
-main() {
-  if (caller(42, 87) != 42 + 87) {
-    throw 'unexpected result';
-  }
-}
diff --git a/tests/language_2/regress/regress11724_runtime_test.dart b/tests/language_2/regress/regress11724_runtime_test.dart
deleted file mode 100644
index e4057ceaf5f..00000000000
--- a/tests/language_2/regress/regress11724_runtime_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-void main() {
-
-}
diff --git a/tests/language_2/regress/regress11724_test.dart b/tests/language_2/regress/regress11724_test.dart
deleted file mode 100644
index f0394528af8..00000000000
--- a/tests/language_2/regress/regress11724_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  method(<int>[]);
-//^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_FUNCTION
-// [cfe] Method not found: 'method'.
-}
diff --git a/tests/language_2/regress/regress11793_test.dart b/tests/language_2/regress/regress11793_test.dart
deleted file mode 100644
index 00700d73121..00000000000
--- a/tests/language_2/regress/regress11793_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js, whose value range analysis phase
-// assumed loop phis that were integer necessarily had integer inputs.
-
-var array = const [0, 0.5];
-var globalB = array[0];
-var otherArray = [5];
-
-main() {
-  var b = globalB;
-  var a = b + 1;
-  if (otherArray[0] == 0) {
-    // Use a non-existing selector to prevent adding a bailout check.
-    (a as dynamic).noSuch();
-    a = otherArray[0];
-  }
-
-  // Use [a] to make sure it does not become dead code.
-  var f = array[a];
-
-  // Add an integer check on [b].
-  var d = array[b];
-
-  // This instruction will be GVN to the same value as [a].
-  // By being GVN'ed, [e] will have its type changed from integer
-  // to number: because of the int type check on [b], we know
-  // [: b + 1 :] returns an integer.
-  // However we update this instruction with the previous [: b + 1 :]
-  // that did not have that information and therefore only knows that
-  // the instruction returns a number.
-  var e = b + 1;
-
-  // Introduce a loop phi that has [e] as header input, and [e++] as
-  // update input. By having [e] as input, dart2js will compute an
-  // integer type for the phi. However, after GVN, [e] becomes a
-  // number.
-
-  while (otherArray[0] == 0) {
-    // Use [e] as an index for an array so that the value range
-    // analysis tries to compute a range for [e].
-    otherArray[e] = d + f;
-    e++;
-  }
-}
diff --git a/tests/language_2/regress/regress11800_test.dart b/tests/language_2/regress/regress11800_test.dart
deleted file mode 100644
index a6c322fb0f4..00000000000
--- a/tests/language_2/regress/regress11800_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test correct register allocation with a value used twice at the same
-// instruction.
-test(List a, int v) {
-  a[v] = v;
-}
-
-main() {
-  var list = new List<dynamic>.filled(2, null);
-  for (var i = 0; i < 20; i++) test(list, 1);
-  Expect.equals(null, list[0]);
-  Expect.equals(1, list[1]);
-}
diff --git a/tests/language_2/regress/regress12023_test.dart b/tests/language_2/regress/regress12023_test.dart
deleted file mode 100644
index c8dc06de17c..00000000000
--- a/tests/language_2/regress/regress12023_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  List test = ["f", "5", "s", "6"];
-  int length = test.length;
-  for (int i = 0; i < length;) {
-    var action = test[i++];
-    switch (action) {
-      case "f":
-      case "s":
-        action = test[i - 1];
-        int value = int.parse(test[i++]);
-        if (action == "f") {
-          Expect.equals(5, value);
-        } else {
-          Expect.equals(6, value);
-        }
-        break;
-    }
-  }
-}
diff --git a/tests/language_2/regress/regress12118_test.dart b/tests/language_2/regress/regress12118_test.dart
deleted file mode 100644
index ec4652b129c..00000000000
--- a/tests/language_2/regress/regress12118_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 12118 which caused a crash in dart2js.
-
-const X = 42;
-
-class A {
-  final x;
-  A({this.x: X});
-}
-
-class B extends A {}
-
-void main() {
-  if (new B().x != 42) {
-    throw 'Test failed';
-  }
-}
diff --git a/tests/language_2/regress/regress12284_test.dart b/tests/language_2/regress/regress12284_test.dart
deleted file mode 100644
index 4c5b0bb7e86..00000000000
--- a/tests/language_2/regress/regress12284_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  int field;
-
-  @pragma('vm:never-inline')
-  @pragma('dart2js:noInline')
-  A(param) {
-    // Currently defeat inlining by using a closure.
-    var bar = () => 42;
-    field = param + 42;
-  }
-  A.redirect() : this('foo');
-}
-
-main() {
-  Expect.equals(42 + 42, new A(42).field);
-  // TODO(jmesserly): DDC throws an nSM if the argument types mismatch,
-  // instead of a TypeError.
-  // https://github.com/dart-lang/dev_compiler/issues/534
-  Expect.throws(() => new A.redirect(),
-      (e) => e is ArgumentError || e is TypeError || e is NoSuchMethodError);
-}
diff --git a/tests/language_2/regress/regress12288_test.dart b/tests/language_2/regress/regress12288_test.dart
deleted file mode 100644
index 9227ae57057..00000000000
--- a/tests/language_2/regress/regress12288_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  var parent = new Element(null);
-  var child = new Element(parent);
-  var result = child.path0.length;
-  if (result != 2) {
-    throw "Expected 2, but child.path0.length was $result";
-  }
-}
-
-class Element {
-  final Element parent;
-
-  Element(this.parent);
-
-  List<Element> get path0 {
-    if (parent == null) {
-      return <Element>[this];
-    } else {
-      var list = parent.path0;
-      list.add(this);
-      return list;
-    }
-  }
-}
diff --git a/tests/language_2/regress/regress12336_test.dart b/tests/language_2/regress/regress12336_test.dart
deleted file mode 100644
index df728703816..00000000000
--- a/tests/language_2/regress/regress12336_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to generate wrong code for
-// [foo].
-
-import "package:expect/expect.dart";
-
-main() {
-  var result = foo(1, 2);
-  Expect.equals(1, result[0]);
-  Expect.equals(2, result[1]);
-
-  result = foo([], 2);
-  Expect.equals(0, result[0]);
-  Expect.listEquals([], result[1]);
-}
-
-@pragma('vm:never-inline')
-@pragma('dart2js:noInline')
-foo(a, b) {
-  () => 42;
-  if (a is List) {
-    var saved = a as List;
-    // By having two HTypeKnown SSA instructions for [a], dart2js was
-    // confused when updating the phis at exit of this block.
-    a = a.length;
-    b = saved;
-  }
-  return [a, b];
-}
diff --git a/tests/language_2/regress/regress124683_test.dart b/tests/language_2/regress/regress124683_test.dart
deleted file mode 100644
index 3da3ec970d1..00000000000
--- a/tests/language_2/regress/regress124683_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for ddc failure triggered by
-// https://dart-review.googlesource.com/c/sdk/+/124683
-
-class Class {
-  String toString() {
-    void local() {}
-
-    return '${runtimeType.toString()}';
-  }
-}
-
-main() {
-  new Class().toString();
-}
diff --git a/tests/language_2/regress/regress12561_test.dart b/tests/language_2/regress/regress12561_test.dart
deleted file mode 100644
index 24b682faf85..00000000000
--- a/tests/language_2/regress/regress12561_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C {
-  noSuchMethod(int x, int y) => x + y;
-//^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-// [cfe] The method 'C.noSuchMethod' has more required arguments than those of overridden method 'Object.noSuchMethod'.
-  //               ^
-  // [cfe] The parameter 'x' of the method 'C.noSuchMethod' has type 'int', which does not match the corresponding type, 'Invocation', in the overridden method, 'Object.noSuchMethod'.
-}
-
-main() {
-  Expect.throws(() => new C().foo, (e) => e is Error);
-  //                          ^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'foo' isn't defined for the class 'C'.
-}
diff --git a/tests/language_2/regress/regress12615_test.dart b/tests/language_2/regress/regress12615_test.dart
deleted file mode 100644
index 0e5a4f9cfb0..00000000000
--- a/tests/language_2/regress/regress12615_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that try-catch works properly in the VM.
-
-main() {
-  void test() {
-    f() {
-      try {} catch (e) {}
-    }
-
-    try {} catch (e) {}
-  }
-
-  test();
-}
diff --git a/tests/language_2/regress/regress13179_test.dart b/tests/language_2/regress/regress13179_test.dart
deleted file mode 100644
index f8ac487d83e..00000000000
--- a/tests/language_2/regress/regress13179_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-int count = 0;
-
-void f([void f([Null x]) = f]) {
-  count++;
-  if (f != null) {
-    f(null);
-  }
-}
-
-main() {
-  f();
-  Expect.equals(2, count);
-}
diff --git a/tests/language_2/regress/regress13494_test.dart b/tests/language_2/regress/regress13494_test.dart
deleted file mode 100644
index 9377eb9de1e..00000000000
--- a/tests/language_2/regress/regress13494_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js. Test that the argument to an unresolved static
-// getter is only evaluated once.
-
-import "package:expect/expect.dart";
-
-int i = 0;
-
-p(x) => i++;
-
-class A {}
-
-main() {
-  bool caught = false;
-  try {
-    A.unknown = p(2);
-    //^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_SETTER
-    // [cfe] Setter not found: 'unknown'.
-  } catch (_) {
-    caught = true;
-  }
-  Expect.isTrue(caught);
-  Expect.equals(1, i);
-}
diff --git a/tests/language_2/regress/regress13556_test.dart b/tests/language_2/regress/regress13556_test.dart
deleted file mode 100644
index 14119d6c38c..00000000000
--- a/tests/language_2/regress/regress13556_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to crash when resolving the
-// @B() annotation.
-
-class A {
-  final a;
-  const A({this.a});
-}
-
-class B extends A {
-  const B();
-}
-
-@B()
-main() {}
diff --git a/tests/language_2/regress/regress1363_lib.dart b/tests/language_2/regress/regress1363_lib.dart
deleted file mode 100644
index 1706957248d..00000000000
--- a/tests/language_2/regress/regress1363_lib.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library Issue1363;
-
-class C {}
-
-class Cup<T> {
-  var foo;
-  Cup(this.foo);
-
-  T getContents() => foo;
-}
diff --git a/tests/language_2/regress/regress1363_runtime_test.dart b/tests/language_2/regress/regress1363_runtime_test.dart
deleted file mode 100644
index bb28153c977..00000000000
--- a/tests/language_2/regress/regress1363_runtime_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--enable_type_checks
-
-library Issue1363Test.dart;
-
-import 'regress1363_lib.dart' as lib;
-
-main() {
-  new C().test();
-}
-
-class C {
-  lib.Cup<lib.C> libCup;
-  lib.Cup<C> myCup;
-
-  C();
-
-  test() {
-    myCup = new lib.Cup<C>(new C());
-    libCup = new lib.Cup<lib.C>(new lib.C());
-
-    C contents = myCup.getContents(); // expect no warning or error
-
-  }
-}
diff --git a/tests/language_2/regress/regress1363_test.dart b/tests/language_2/regress/regress1363_test.dart
deleted file mode 100644
index 71fc5fb026d..00000000000
--- a/tests/language_2/regress/regress1363_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--enable_type_checks
-
-// @dart = 2.9
-
-library Issue1363Test.dart;
-
-import 'regress1363_lib.dart' as lib;
-
-main() {
-  new C().test();
-}
-
-class C {
-  lib.Cup<lib.C> libCup;
-  lib.Cup<C> myCup;
-
-  C();
-
-  test() {
-    myCup = new lib.Cup<C>(new C());
-    libCup = new lib.Cup<lib.C>(new lib.C());
-
-    C contents = myCup.getContents(); // expect no warning or error
-    contents = libCup.getContents();
-    //         ^^^^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-    //                ^
-    // [cfe] A value of type 'C/*1*/' can't be assigned to a variable of type 'C/*2*/'.
-  }
-}
diff --git a/tests/language_2/regress/regress13673_test.dart b/tests/language_2/regress/regress13673_test.dart
deleted file mode 100644
index 56631aae3d5..00000000000
--- a/tests/language_2/regress/regress13673_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Bar {
-  Type field;
-  Bar(this.field);
-  foo() => field;
-}
-
-dynamic topLevel = new Bar(String).foo();
-
-main() {
-  Expect.isTrue(topLevel is Type);
-}
diff --git a/tests/language_2/regress/regress14014_2_test.dart b/tests/language_2/regress/regress14014_2_test.dart
deleted file mode 100644
index 15436736a4c..00000000000
--- a/tests/language_2/regress/regress14014_2_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that a type variable used in a parameter of a constructor that
-// has a closure in its initializer list does not lead to a crash in
-// dart2js.
-
-class A<T> {
-  A(f);
-}
-
-class B<T> extends A<T> {
-  B({void f(T foo)})
-      : super((T a) {
-          f = (a) => 42;
-        });
-}
-
-main() {
-  var t = new B<int>();
-}
diff --git a/tests/language_2/regress/regress14014_3_test.dart b/tests/language_2/regress/regress14014_3_test.dart
deleted file mode 100644
index 8bdd11b16ad..00000000000
--- a/tests/language_2/regress/regress14014_3_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that an is check on a function type involving type parameters
-// does not crash dart2js, when the is test is in the initializer list
-// of a constructor.
-
-class A<T> {
-  var f;
-  A(this.f);
-}
-
-typedef foo<T>(T a);
-
-class B<T> extends A<T> {
-  B({void f(T foo)}) : super(() => f is foo<T>);
-}
-
-main() {
-  var t = new B<int>(f: (int a) => 42);
-  if (!t.f()) {
-    throw 'Test failed';
-  }
-}
diff --git a/tests/language_2/regress/regress14014_test.dart b/tests/language_2/regress/regress14014_test.dart
deleted file mode 100644
index ab0dd892c1b..00000000000
--- a/tests/language_2/regress/regress14014_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A<T> {
-  A(f);
-}
-
-class B<T> extends A<T> {
-  B() : super((T param) => 42);
-}
-
-main() {
-  var t = new B<int>();
-}
diff --git a/tests/language_2/regress/regress14105_test.dart b/tests/language_2/regress/regress14105_test.dart
deleted file mode 100644
index 1ec2d0c58aa..00000000000
--- a/tests/language_2/regress/regress14105_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for Issue 14105.
-
-typedef UsedAsFieldType();
-
-class ClassOnlyForRti {
-  UsedAsFieldType field;
-}
-
-class A<T> {
-  var field;
-}
-
-use(a) => a.field = "";
-
-var useFieldSetter = use;
-
-main() {
-  var a = new A<ClassOnlyForRti>();
-  useFieldSetter(a);
-  print(a is A<int>);
-}
diff --git a/tests/language_2/regress/regress14242_test.dart b/tests/language_2/regress/regress14242_test.dart
deleted file mode 100644
index 57cf5505f8b..00000000000
--- a/tests/language_2/regress/regress14242_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to crash on type literals
-// used in a cascade send.
-
-class A {
-  var bar;
-  var foo = {};
-}
-
-main() {
-  var a = new A();
-  a
-    ..foo[Object] = 54
-    ..bar = 42;
-  if (a.foo.keys.first is! Type) {
-    throw 'Test failed';
-  }
-}
diff --git a/tests/language_2/regress/regress14348_test.dart b/tests/language_2/regress/regress14348_test.dart
deleted file mode 100644
index 100eafafe08..00000000000
--- a/tests/language_2/regress/regress14348_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 14348.
-
-import "package:collection/equality.dart";
-
-main() {
-  const Equality<Iterable> eq = const UnorderedIterableEquality();
-  const Equality<Map<dynamic, Iterable>> mapeq =
-      const MapEquality<dynamic, Iterable>(values: eq);
-}
diff --git a/tests/language_2/regress/regress15606_runtime_test.dart b/tests/language_2/regress/regress15606_runtime_test.dart
deleted file mode 100644
index ddcd5792f39..00000000000
--- a/tests/language_2/regress/regress15606_runtime_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Foo<T> {}
-
-var a = [new Object(), 42];
-
-bar(x, y) {}
-
-main() {
-  while (false) {
-    // Comply to inlining heuristics.
-    // Use an unresolved prefix.
-    var foo =
-
-        bar(
-      // Make dart2js generate a call to setRuntimeTypeInfo.
-      new Foo<int>(),
-      // Use a one-shot interceptor.
-      a[0].toString());
-
-    // Do an is test on `Foo` to require setRuntimeTypeInfo.
-    print(foo is Foo<int>);
-  }
-}
diff --git a/tests/language_2/regress/regress15606_test.dart b/tests/language_2/regress/regress15606_test.dart
deleted file mode 100644
index 740f9199027..00000000000
--- a/tests/language_2/regress/regress15606_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Foo<T> {}
-
-var a = [new Object(), 42];
-
-bar(x, y) {}
-
-main() {
-  while (false) {
-    // Comply to inlining heuristics.
-    // Use an unresolved prefix.
-    var foo =
-      Unresolved.
-//    ^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-// [cfe] Undefined name 'Unresolved'.
-        bar(
-      // Make dart2js generate a call to setRuntimeTypeInfo.
-      new Foo<int>(),
-      // Use a one-shot interceptor.
-      a[0].toString());
-
-    // Do an is test on `Foo` to require setRuntimeTypeInfo.
-    print(foo is Foo<int>);
-  }
-}
diff --git a/tests/language_2/regress/regress15702_test.dart b/tests/language_2/regress/regress15702_test.dart
deleted file mode 100644
index 13fbb67ae5e..00000000000
--- a/tests/language_2/regress/regress15702_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  Amount stake = new Amount(2.5);
-  if ((stake.value * 10).toInt() != 25) {
-    throw 'Test failed';
-  }
-}
-
-class Amount {
-  num value;
-  Amount(this.value);
-}
diff --git a/tests/language_2/regress/regress15720_test.dart b/tests/language_2/regress/regress15720_test.dart
deleted file mode 100644
index 14d5b183502..00000000000
--- a/tests/language_2/regress/regress15720_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js, issue 15720.
-
-class B {}
-
-confuse(x) {
-  if (DateTime.now().millisecondsSinceEpoch == 42) return confuse(x);
-  return x;
-}
-
-main() {
-  Set<B> set = new Set<B>.from([]);
-
-  confuse(499);
-  confuse(set);
-
-  // Dart2js used to reuse a variable name, overwriting the `set` variable with
-  // one of the B's.
-  var t1 = new B();
-  var t2 = new B();
-  var t3 = new B();
-  var t4 = new B();
-
-  set.addAll([t1, t2, t3, t4]);
-  confuse(7);
-
-  set.addAll([t1, t2, t3, t4]);
-}
diff --git a/tests/language_2/regress/regress1578_test.dart b/tests/language_2/regress/regress1578_test.dart
deleted file mode 100644
index d899ca861ef..00000000000
--- a/tests/language_2/regress/regress1578_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 1578.
-
-]~<)$
-// [error line 9, column 1, length 1]
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_EXECUTABLE
-// [cfe] Expected a declaration, but got ']'.
-// [error line 9, column 2, length 1]
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_EXECUTABLE
-// [cfe] Expected a declaration, but got '~'.
-//^
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_EXECUTABLE
-// [cfe] Expected a declaration, but got '<'.
-// ^
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_EXECUTABLE
-// [cfe] Expected a declaration, but got ')'.
-//  ^
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-// [analyzer] SYNTACTIC_ERROR.MISSING_CONST_FINAL_VAR_OR_TYPE
-// [cfe] Expected ';' after this.
-// [cfe] Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
diff --git a/tests/language_2/regress/regress16640_test.dart b/tests/language_2/regress/regress16640_test.dart
deleted file mode 100644
index 299442d6abf..00000000000
--- a/tests/language_2/regress/regress16640_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 16640.
-
-class Segment extends SegmentGen {}
-
-class SegmentGen extends ConceptEntity<Segment> {}
-
-class ConceptEntity<E> {}
-
-main() {
-  new ConceptEntity<Segment>();
-}
diff --git a/tests/language_2/regress/regress17382_test.dart b/tests/language_2/regress/regress17382_test.dart
deleted file mode 100644
index 2b6bfaaaf8a..00000000000
--- a/tests/language_2/regress/regress17382_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 17382.
-
-import 'package:expect/expect.dart';
-
-var mCalled = false;
-
-m(x) {
-  mCalled = true;
-  return x;
-}
-
-main() {
-  try {
-    tl(m(0));
-//  ^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_FUNCTION
-// [cfe] Method not found: 'tl'.
-  } catch (e) {}
-  Expect.isTrue(mCalled);
-}
diff --git a/tests/language_2/regress/regress1751477_lib1.dart b/tests/language_2/regress/regress1751477_lib1.dart
deleted file mode 100644
index 10ce32d7e39..00000000000
--- a/tests/language_2/regress/regress1751477_lib1.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib1;
-
-import 'regress1751477_lib2.dart';
-import 'regress1751477_lib3.dart';
-import 'regress1751477_lib4.dart';
-import 'regress1751477_lib5.dart';
-import 'regress1751477_lib6.dart';
-import 'regress1751477_lib7.dart';
-import 'regress1751477_lib8.dart';
-import 'regress1751477_lib9.dart';
-
-import 'regress1751477_lib11.dart';
-import 'regress1751477_lib21.dart';
-import 'regress1751477_lib31.dart';
-import 'regress1751477_lib41.dart';
-import 'regress1751477_lib51.dart';
-import 'regress1751477_lib61.dart';
-import 'regress1751477_lib71.dart';
-import 'regress1751477_lib81.dart';
-import 'regress1751477_lib91.dart';
-
-lib1_func() {}
diff --git a/tests/language_2/regress/regress1751477_lib11.dart b/tests/language_2/regress/regress1751477_lib11.dart
deleted file mode 100644
index f0c4e0dd3fa..00000000000
--- a/tests/language_2/regress/regress1751477_lib11.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib11;
-
-import 'regress1751477_lib1.dart';
-import 'regress1751477_lib2.dart';
-import 'regress1751477_lib3.dart';
-import 'regress1751477_lib4.dart';
-import 'regress1751477_lib5.dart';
-import 'regress1751477_lib6.dart';
-import 'regress1751477_lib7.dart';
-import 'regress1751477_lib8.dart';
-import 'regress1751477_lib9.dart';
-
-import 'regress1751477_lib21.dart';
-import 'regress1751477_lib31.dart';
-import 'regress1751477_lib41.dart';
-import 'regress1751477_lib51.dart';
-import 'regress1751477_lib61.dart';
-import 'regress1751477_lib71.dart';
-import 'regress1751477_lib81.dart';
-import 'regress1751477_lib91.dart';
-
-lib11_func() {}
diff --git a/tests/language_2/regress/regress1751477_lib2.dart b/tests/language_2/regress/regress1751477_lib2.dart
deleted file mode 100644
index 63a3216d51d..00000000000
--- a/tests/language_2/regress/regress1751477_lib2.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib2;
-
-import 'regress1751477_lib1.dart';
-import 'regress1751477_lib3.dart';
-import 'regress1751477_lib4.dart';
-import 'regress1751477_lib5.dart';
-import 'regress1751477_lib6.dart';
-import 'regress1751477_lib7.dart';
-import 'regress1751477_lib8.dart';
-import 'regress1751477_lib9.dart';
-
-import 'regress1751477_lib11.dart';
-import 'regress1751477_lib21.dart';
-import 'regress1751477_lib31.dart';
-import 'regress1751477_lib41.dart';
-import 'regress1751477_lib51.dart';
-import 'regress1751477_lib61.dart';
-import 'regress1751477_lib71.dart';
-import 'regress1751477_lib81.dart';
-import 'regress1751477_lib91.dart';
-
-lib2_func() {}
diff --git a/tests/language_2/regress/regress1751477_lib21.dart b/tests/language_2/regress/regress1751477_lib21.dart
deleted file mode 100644
index 24b9aeea1bd..00000000000
--- a/tests/language_2/regress/regress1751477_lib21.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib21;
-
-import 'regress1751477_lib1.dart';
-import 'regress1751477_lib2.dart';
-import 'regress1751477_lib3.dart';
-import 'regress1751477_lib4.dart';
-import 'regress1751477_lib5.dart';
-import 'regress1751477_lib6.dart';
-import 'regress1751477_lib7.dart';
-import 'regress1751477_lib8.dart';
-import 'regress1751477_lib9.dart';
-
-import 'regress1751477_lib11.dart';
-import 'regress1751477_lib31.dart';
-import 'regress1751477_lib41.dart';
-import 'regress1751477_lib51.dart';
-import 'regress1751477_lib61.dart';
-import 'regress1751477_lib71.dart';
-import 'regress1751477_lib81.dart';
-import 'regress1751477_lib91.dart';
-
-lib21_func() {}
diff --git a/tests/language_2/regress/regress1751477_lib3.dart b/tests/language_2/regress/regress1751477_lib3.dart
deleted file mode 100644
index c6518372f82..00000000000
--- a/tests/language_2/regress/regress1751477_lib3.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib3;
-
-import 'regress1751477_lib2.dart';
-import 'regress1751477_lib1.dart';
-import 'regress1751477_lib4.dart';
-import 'regress1751477_lib5.dart';
-import 'regress1751477_lib6.dart';
-import 'regress1751477_lib7.dart';
-import 'regress1751477_lib8.dart';
-import 'regress1751477_lib9.dart';
-
-import 'regress1751477_lib11.dart';
-import 'regress1751477_lib21.dart';
-import 'regress1751477_lib31.dart';
-import 'regress1751477_lib41.dart';
-import 'regress1751477_lib51.dart';
-import 'regress1751477_lib61.dart';
-import 'regress1751477_lib71.dart';
-import 'regress1751477_lib81.dart';
-import 'regress1751477_lib91.dart';
-
-lib3_func() {}
diff --git a/tests/language_2/regress/regress1751477_lib31.dart b/tests/language_2/regress/regress1751477_lib31.dart
deleted file mode 100644
index e27d72c7deb..00000000000
--- a/tests/language_2/regress/regress1751477_lib31.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib31;
-
-import 'regress1751477_lib1.dart';
-import 'regress1751477_lib2.dart';
-import 'regress1751477_lib3.dart';
-import 'regress1751477_lib4.dart';
-import 'regress1751477_lib5.dart';
-import 'regress1751477_lib6.dart';
-import 'regress1751477_lib7.dart';
-import 'regress1751477_lib8.dart';
-import 'regress1751477_lib9.dart';
-
-import 'regress1751477_lib11.dart';
-import 'regress1751477_lib21.dart';
-import 'regress1751477_lib41.dart';
-import 'regress1751477_lib51.dart';
-import 'regress1751477_lib61.dart';
-import 'regress1751477_lib71.dart';
-import 'regress1751477_lib81.dart';
-import 'regress1751477_lib91.dart';
-
-lib31_func() {}
diff --git a/tests/language_2/regress/regress1751477_lib4.dart b/tests/language_2/regress/regress1751477_lib4.dart
deleted file mode 100644
index db6297c8aa8..00000000000
--- a/tests/language_2/regress/regress1751477_lib4.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib4;
-
-import 'regress1751477_lib2.dart';
-import 'regress1751477_lib3.dart';
-import 'regress1751477_lib1.dart';
-import 'regress1751477_lib5.dart';
-import 'regress1751477_lib6.dart';
-import 'regress1751477_lib7.dart';
-import 'regress1751477_lib8.dart';
-import 'regress1751477_lib9.dart';
-
-import 'regress1751477_lib11.dart';
-import 'regress1751477_lib21.dart';
-import 'regress1751477_lib31.dart';
-import 'regress1751477_lib41.dart';
-import 'regress1751477_lib51.dart';
-import 'regress1751477_lib61.dart';
-import 'regress1751477_lib71.dart';
-import 'regress1751477_lib81.dart';
-import 'regress1751477_lib91.dart';
-
-lib4_func() {}
diff --git a/tests/language_2/regress/regress1751477_lib41.dart b/tests/language_2/regress/regress1751477_lib41.dart
deleted file mode 100644
index 0fb044e4f98..00000000000
--- a/tests/language_2/regress/regress1751477_lib41.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib41;
-
-import 'regress1751477_lib1.dart';
-import 'regress1751477_lib2.dart';
-import 'regress1751477_lib3.dart';
-import 'regress1751477_lib4.dart';
-import 'regress1751477_lib5.dart';
-import 'regress1751477_lib6.dart';
-import 'regress1751477_lib7.dart';
-import 'regress1751477_lib8.dart';
-import 'regress1751477_lib9.dart';
-
-import 'regress1751477_lib11.dart';
-import 'regress1751477_lib21.dart';
-import 'regress1751477_lib31.dart';
-import 'regress1751477_lib51.dart';
-import 'regress1751477_lib61.dart';
-import 'regress1751477_lib71.dart';
-import 'regress1751477_lib81.dart';
-import 'regress1751477_lib91.dart';
-
-lib41_func() {}
diff --git a/tests/language_2/regress/regress1751477_lib5.dart b/tests/language_2/regress/regress1751477_lib5.dart
deleted file mode 100644
index 6a2ec5b3a2d..00000000000
--- a/tests/language_2/regress/regress1751477_lib5.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib5;
-
-import 'regress1751477_lib2.dart';
-import 'regress1751477_lib3.dart';
-import 'regress1751477_lib4.dart';
-import 'regress1751477_lib1.dart';
-import 'regress1751477_lib6.dart';
-import 'regress1751477_lib7.dart';
-import 'regress1751477_lib8.dart';
-import 'regress1751477_lib9.dart';
-
-import 'regress1751477_lib11.dart';
-import 'regress1751477_lib21.dart';
-import 'regress1751477_lib31.dart';
-import 'regress1751477_lib41.dart';
-import 'regress1751477_lib51.dart';
-import 'regress1751477_lib61.dart';
-import 'regress1751477_lib71.dart';
-import 'regress1751477_lib81.dart';
-import 'regress1751477_lib91.dart';
-
-lib5_func() {}
diff --git a/tests/language_2/regress/regress1751477_lib51.dart b/tests/language_2/regress/regress1751477_lib51.dart
deleted file mode 100644
index e50b83e42d6..00000000000
--- a/tests/language_2/regress/regress1751477_lib51.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib51;
-
-import 'regress1751477_lib1.dart';
-import 'regress1751477_lib2.dart';
-import 'regress1751477_lib3.dart';
-import 'regress1751477_lib4.dart';
-import 'regress1751477_lib5.dart';
-import 'regress1751477_lib6.dart';
-import 'regress1751477_lib7.dart';
-import 'regress1751477_lib8.dart';
-import 'regress1751477_lib9.dart';
-
-import 'regress1751477_lib11.dart';
-import 'regress1751477_lib21.dart';
-import 'regress1751477_lib31.dart';
-import 'regress1751477_lib41.dart';
-import 'regress1751477_lib61.dart';
-import 'regress1751477_lib71.dart';
-import 'regress1751477_lib81.dart';
-import 'regress1751477_lib91.dart';
-
-lib51_func() {}
diff --git a/tests/language_2/regress/regress1751477_lib6.dart b/tests/language_2/regress/regress1751477_lib6.dart
deleted file mode 100644
index d9fd9ae4b44..00000000000
--- a/tests/language_2/regress/regress1751477_lib6.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib6;
-
-import 'regress1751477_lib2.dart';
-import 'regress1751477_lib3.dart';
-import 'regress1751477_lib4.dart';
-import 'regress1751477_lib5.dart';
-import 'regress1751477_lib1.dart';
-import 'regress1751477_lib7.dart';
-import 'regress1751477_lib8.dart';
-import 'regress1751477_lib9.dart';
-
-import 'regress1751477_lib11.dart';
-import 'regress1751477_lib21.dart';
-import 'regress1751477_lib31.dart';
-import 'regress1751477_lib41.dart';
-import 'regress1751477_lib51.dart';
-import 'regress1751477_lib61.dart';
-import 'regress1751477_lib71.dart';
-import 'regress1751477_lib81.dart';
-import 'regress1751477_lib91.dart';
-
-lib6_func() {}
diff --git a/tests/language_2/regress/regress1751477_lib61.dart b/tests/language_2/regress/regress1751477_lib61.dart
deleted file mode 100644
index c624ca517e0..00000000000
--- a/tests/language_2/regress/regress1751477_lib61.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib61;
-
-import 'regress1751477_lib1.dart';
-import 'regress1751477_lib2.dart';
-import 'regress1751477_lib3.dart';
-import 'regress1751477_lib4.dart';
-import 'regress1751477_lib5.dart';
-import 'regress1751477_lib6.dart';
-import 'regress1751477_lib7.dart';
-import 'regress1751477_lib8.dart';
-import 'regress1751477_lib9.dart';
-
-import 'regress1751477_lib11.dart';
-import 'regress1751477_lib21.dart';
-import 'regress1751477_lib31.dart';
-import 'regress1751477_lib41.dart';
-import 'regress1751477_lib51.dart';
-import 'regress1751477_lib71.dart';
-import 'regress1751477_lib81.dart';
-import 'regress1751477_lib91.dart';
-
-lib61_func() {}
diff --git a/tests/language_2/regress/regress1751477_lib7.dart b/tests/language_2/regress/regress1751477_lib7.dart
deleted file mode 100644
index 736473cc9b0..00000000000
--- a/tests/language_2/regress/regress1751477_lib7.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib7;
-
-import 'regress1751477_lib2.dart';
-import 'regress1751477_lib3.dart';
-import 'regress1751477_lib4.dart';
-import 'regress1751477_lib5.dart';
-import 'regress1751477_lib6.dart';
-import 'regress1751477_lib1.dart';
-import 'regress1751477_lib8.dart';
-import 'regress1751477_lib9.dart';
-
-import 'regress1751477_lib11.dart';
-import 'regress1751477_lib21.dart';
-import 'regress1751477_lib31.dart';
-import 'regress1751477_lib41.dart';
-import 'regress1751477_lib51.dart';
-import 'regress1751477_lib61.dart';
-import 'regress1751477_lib71.dart';
-import 'regress1751477_lib81.dart';
-import 'regress1751477_lib91.dart';
-
-lib7_func() {}
diff --git a/tests/language_2/regress/regress1751477_lib71.dart b/tests/language_2/regress/regress1751477_lib71.dart
deleted file mode 100644
index 735e989115c..00000000000
--- a/tests/language_2/regress/regress1751477_lib71.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib71;
-
-import 'regress1751477_lib1.dart';
-import 'regress1751477_lib2.dart';
-import 'regress1751477_lib3.dart';
-import 'regress1751477_lib4.dart';
-import 'regress1751477_lib5.dart';
-import 'regress1751477_lib6.dart';
-import 'regress1751477_lib7.dart';
-import 'regress1751477_lib8.dart';
-import 'regress1751477_lib9.dart';
-
-import 'regress1751477_lib11.dart';
-import 'regress1751477_lib21.dart';
-import 'regress1751477_lib31.dart';
-import 'regress1751477_lib41.dart';
-import 'regress1751477_lib51.dart';
-import 'regress1751477_lib61.dart';
-import 'regress1751477_lib81.dart';
-import 'regress1751477_lib91.dart';
-
-lib71_func() {}
diff --git a/tests/language_2/regress/regress1751477_lib8.dart b/tests/language_2/regress/regress1751477_lib8.dart
deleted file mode 100644
index 98a13b67eb6..00000000000
--- a/tests/language_2/regress/regress1751477_lib8.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib8;
-
-import 'regress1751477_lib2.dart';
-import 'regress1751477_lib3.dart';
-import 'regress1751477_lib4.dart';
-import 'regress1751477_lib5.dart';
-import 'regress1751477_lib6.dart';
-import 'regress1751477_lib7.dart';
-import 'regress1751477_lib1.dart';
-import 'regress1751477_lib9.dart';
-
-import 'regress1751477_lib11.dart';
-import 'regress1751477_lib21.dart';
-import 'regress1751477_lib31.dart';
-import 'regress1751477_lib41.dart';
-import 'regress1751477_lib51.dart';
-import 'regress1751477_lib61.dart';
-import 'regress1751477_lib71.dart';
-import 'regress1751477_lib81.dart';
-import 'regress1751477_lib91.dart';
-
-lib8_func() {}
diff --git a/tests/language_2/regress/regress1751477_lib81.dart b/tests/language_2/regress/regress1751477_lib81.dart
deleted file mode 100644
index d4ad07a46d0..00000000000
--- a/tests/language_2/regress/regress1751477_lib81.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib81;
-
-import 'regress1751477_lib1.dart';
-import 'regress1751477_lib2.dart';
-import 'regress1751477_lib3.dart';
-import 'regress1751477_lib4.dart';
-import 'regress1751477_lib5.dart';
-import 'regress1751477_lib6.dart';
-import 'regress1751477_lib7.dart';
-import 'regress1751477_lib8.dart';
-import 'regress1751477_lib9.dart';
-
-import 'regress1751477_lib11.dart';
-import 'regress1751477_lib21.dart';
-import 'regress1751477_lib31.dart';
-import 'regress1751477_lib41.dart';
-import 'regress1751477_lib51.dart';
-import 'regress1751477_lib61.dart';
-import 'regress1751477_lib71.dart';
-import 'regress1751477_lib91.dart';
-
-lib81_func() {}
diff --git a/tests/language_2/regress/regress1751477_lib9.dart b/tests/language_2/regress/regress1751477_lib9.dart
deleted file mode 100644
index 6355f021b41..00000000000
--- a/tests/language_2/regress/regress1751477_lib9.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib9;
-
-import 'regress1751477_lib2.dart';
-import 'regress1751477_lib3.dart';
-import 'regress1751477_lib4.dart';
-import 'regress1751477_lib5.dart';
-import 'regress1751477_lib6.dart';
-import 'regress1751477_lib7.dart';
-import 'regress1751477_lib8.dart';
-import 'regress1751477_lib1.dart';
-
-import 'regress1751477_lib11.dart';
-import 'regress1751477_lib21.dart';
-import 'regress1751477_lib31.dart';
-import 'regress1751477_lib41.dart';
-import 'regress1751477_lib51.dart';
-import 'regress1751477_lib61.dart';
-import 'regress1751477_lib71.dart';
-import 'regress1751477_lib81.dart';
-import 'regress1751477_lib91.dart';
-
-lib9_func() {}
diff --git a/tests/language_2/regress/regress1751477_lib91.dart b/tests/language_2/regress/regress1751477_lib91.dart
deleted file mode 100644
index dc3a0c97a6f..00000000000
--- a/tests/language_2/regress/regress1751477_lib91.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib91;
-
-import 'regress1751477_lib1.dart';
-import 'regress1751477_lib2.dart';
-import 'regress1751477_lib3.dart';
-import 'regress1751477_lib4.dart';
-import 'regress1751477_lib5.dart';
-import 'regress1751477_lib6.dart';
-import 'regress1751477_lib7.dart';
-import 'regress1751477_lib8.dart';
-import 'regress1751477_lib9.dart';
-
-import 'regress1751477_lib11.dart';
-import 'regress1751477_lib21.dart';
-import 'regress1751477_lib31.dart';
-import 'regress1751477_lib41.dart';
-import 'regress1751477_lib51.dart';
-import 'regress1751477_lib61.dart';
-import 'regress1751477_lib71.dart';
-import 'regress1751477_lib81.dart';
-
-lib91_func() {}
diff --git a/tests/language_2/regress/regress1751477_test.dart b/tests/language_2/regress/regress1751477_test.dart
deleted file mode 100644
index 5647ac9c5f6..00000000000
--- a/tests/language_2/regress/regress1751477_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'regress1751477_lib1.dart' deferred as lib1;
-import 'regress1751477_lib2.dart' deferred as lib2;
-import 'regress1751477_lib3.dart' deferred as lib3;
-import 'regress1751477_lib4.dart' deferred as lib4;
-import 'regress1751477_lib5.dart' deferred as lib5;
-import 'regress1751477_lib6.dart' deferred as lib6;
-import 'regress1751477_lib7.dart' deferred as lib7;
-import 'regress1751477_lib8.dart' deferred as lib8;
-import 'regress1751477_lib9.dart' deferred as lib9;
-
-main() {
-  lib1.loadLibrary().then((_) {
-    lib2.loadLibrary().then((_) {
-      lib3.loadLibrary().then((_) {
-        lib4.loadLibrary().then((_) {
-          lib5.loadLibrary().then((_) {
-            lib6.loadLibrary().then((_) {
-              lib7.loadLibrary().then((_) {
-                lib8.loadLibrary().then((_) {
-                  lib9.loadLibrary().then((_) {});
-                });
-              });
-            });
-          });
-        });
-      });
-    });
-  });
-}
diff --git a/tests/language_2/regress/regress18435_test.dart b/tests/language_2/regress/regress18435_test.dart
deleted file mode 100644
index 599b21f16ed..00000000000
--- a/tests/language_2/regress/regress18435_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 18435.
-
-import "package:expect/expect.dart";
-
-main() {
-  const MISSING_VALUE = "MISSING_VALUE";
-
-  void foo([var p1 = MISSING_VALUE, var p2 = MISSING_VALUE]) {
-    Expect.equals("P1", p1);
-    Expect.equals("P2", p2);
-  }
-
-  void bar([var p1 = "MISSING_VALUE", var p2 = "MISSING_VALUE"]) {
-    Expect.equals("P1", p1);
-    Expect.equals("P2", p2);
-  }
-
-  foo("P1", "P2");
-  bar("P1", "P2");
-}
diff --git a/tests/language_2/regress/regress18628_1_runtime_test.dart b/tests/language_2/regress/regress18628_1_runtime_test.dart
deleted file mode 100644
index 8f996add9fd..00000000000
--- a/tests/language_2/regress/regress18628_1_runtime_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// This test checks for a regression found in Dart Editor: the
-// analyzer was treating [Type] as more specific than any type
-// variable (generic parameter).
-//
-// https://code.google.com/p/dart/issues/detail?id=18628
-
-class C<T> {
-  // This line is supposed to cause the warning; the other commented
-  // line just doesn't make sense without this line.
-
-}
-
-main() {
-  C<Type> c = new C<Type>();
-
-}
diff --git a/tests/language_2/regress/regress18628_1_test.dart b/tests/language_2/regress/regress18628_1_test.dart
deleted file mode 100644
index ba8e67c46a6..00000000000
--- a/tests/language_2/regress/regress18628_1_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test checks for a regression found in Dart Editor: the
-// analyzer was treating [Type] as more specific than any type
-// variable (generic parameter).
-//
-// https://code.google.com/p/dart/issues/detail?id=18628
-
-class C<T> {
-  // This line is supposed to cause the warning; the other commented
-  // line just doesn't make sense without this line.
-  T t = int;
-  //    ^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  // [cfe] A value of type 'Type' can't be assigned to a variable of type 'T'.
-}
-
-main() {
-  C<Type> c = new C<Type>();
-  print(c.t);
-}
diff --git a/tests/language_2/regress/regress18628_2_runtime_test.dart b/tests/language_2/regress/regress18628_2_runtime_test.dart
deleted file mode 100644
index ebfb189d74c..00000000000
--- a/tests/language_2/regress/regress18628_2_runtime_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// This test checks for a regression found in Dart Editor: the
-// analyzer was treating [Type] as more specific than any type
-// variable (generic parameter).
-//
-// https://code.google.com/p/dart/issues/detail?id=18628
-
-class X<T extends Type> {}
-
-// This line is supposed to cause the warning; the other lines are
-// marked because they don't make sense when [Y] is not defined.
-
-
-main() {
-
-
-}
diff --git a/tests/language_2/regress/regress18628_2_test.dart b/tests/language_2/regress/regress18628_2_test.dart
deleted file mode 100644
index e035c813a63..00000000000
--- a/tests/language_2/regress/regress18628_2_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test checks for a regression found in Dart Editor: the
-// analyzer was treating [Type] as more specific than any type
-// variable (generic parameter).
-//
-// https://code.google.com/p/dart/issues/detail?id=18628
-
-class X<T extends Type> {}
-
-// This line is supposed to cause the warning; the other lines are
-// marked because they don't make sense when [Y] is not defined.
-class Y<U> extends X<U> {}
-//                 ^
-// [cfe] Type argument 'U' doesn't conform to the bound 'Type' of the type variable 'T' on 'X'.
-//                   ^
-// [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-
-main() {
-  X<Type> x = new X<Type>();
-  Y<Type> y = new Y<Type>();
-}
diff --git a/tests/language_2/regress/regress18713_test.dart b/tests/language_2/regress/regress18713_test.dart
deleted file mode 100644
index 08a03b2b6a1..00000000000
--- a/tests/language_2/regress/regress18713_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class T<X> {
-  final Type tType = X;
-  Type get getTType => X;
-}
-
-class S<Y> {
-  final Type sType = Y;
-  Type get getSType => Y;
-}
-
-class TS<A, B> = T<A> with S<B>;
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-dyn(x) => x;
-
-main() {
-  var ts = new TS<int, String>();
-
-  Expect.equals("String", ts.sType.toString());
-  Expect.equals("int", ts.tType.toString());
-  Expect.equals("String", ts.getSType.toString());
-  Expect.equals("int", ts.getTType.toString());
-
-  Expect.equals("String", dyn(ts).sType.toString());
-  Expect.equals("int", dyn(ts).tType.toString());
-  Expect.equals("String", dyn(ts).getSType.toString());
-  Expect.equals("int", dyn(ts).getTType.toString());
-}
diff --git a/tests/language_2/regress/regress18865_test.dart b/tests/language_2/regress/regress18865_test.dart
deleted file mode 100644
index ca7cec2c006..00000000000
--- a/tests/language_2/regress/regress18865_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 18865.
-
-class B<T> {}
-
-class A<T> extends B {
-  static foo() => new A();
-}
-
-main() {
-  A.foo();
-}
diff --git a/tests/language_2/regress/regress19413_bar.dart b/tests/language_2/regress/regress19413_bar.dart
deleted file mode 100644
index 681826b06c8..00000000000
--- a/tests/language_2/regress/regress19413_bar.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library bar;
-
-f() {
-  print('bar.f()');
-}
diff --git a/tests/language_2/regress/regress19413_foo.dart b/tests/language_2/regress/regress19413_foo.dart
deleted file mode 100644
index 5165bbab347..00000000000
--- a/tests/language_2/regress/regress19413_foo.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library foo;
-
-f() {
-  print('foo.f()');
-}
diff --git a/tests/language_2/regress/regress19413_test.dart b/tests/language_2/regress/regress19413_test.dart
deleted file mode 100644
index 6b9919412de..00000000000
--- a/tests/language_2/regress/regress19413_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 19413.
-
-import 'regress19413_foo.dart' as foo;
-import 'regress19413_bar.dart' as foo;
-
-main() {
-  foo.f();
-  //  ^
-  // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_IMPORT
-  // [cfe] 'f' is imported from both 'tests/language_2/regress/regress19413_bar.dart' and 'tests/language_2/regress/regress19413_foo.dart'.
-}
diff --git a/tests/language_2/regress/regress19728_test.dart b/tests/language_2/regress/regress19728_test.dart
deleted file mode 100644
index d2f5e3e23e4..00000000000
--- a/tests/language_2/regress/regress19728_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 19728.
-
-class C<T extends dynamic> {
-  T field;
-
-  test() {
-    field = 0;
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-    // [cfe] A value of type 'int' can't be assigned to a variable of type 'T'.
-    int i = field;
-    //      ^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-    // [cfe] A value of type 'T' can't be assigned to a variable of type 'int'.
-  }
-}
-
-void main() {
-  new C().test();
-}
diff --git a/tests/language_2/regress/regress20074_test.dart b/tests/language_2/regress/regress20074_test.dart
deleted file mode 100644
index 6b80c20f6f8..00000000000
--- a/tests/language_2/regress/regress20074_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 20074. Check that a parameter is not declared
-// in the same scope as its function declaration.
-
-doit() {
-  error(error) {
-    print(error);
-  }
-
-  error('foobar');
-}
-
-main() {
-  doit();
-}
diff --git a/tests/language_2/regress/regress20394_lib.dart b/tests/language_2/regress/regress20394_lib.dart
deleted file mode 100644
index e4f39ebbe0f..00000000000
--- a/tests/language_2/regress/regress20394_lib.dart
+++ /dev/null
@@ -1,8 +0,0 @@
-
-// @dart = 2.9
-library lib;
-
-class Super {
-  Super();
-  Super._private(arg);
-}
diff --git a/tests/language_2/regress/regress20394_runtime_test.dart b/tests/language_2/regress/regress20394_runtime_test.dart
deleted file mode 100644
index e6458f84259..00000000000
--- a/tests/language_2/regress/regress20394_runtime_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-import 'regress20394_lib.dart';
-
-class M {}
-
-class C extends Super with M {
-
-}
-
-main() {
-  new C();
-}
diff --git a/tests/language_2/regress/regress20394_test.dart b/tests/language_2/regress/regress20394_test.dart
deleted file mode 100644
index a09869bc126..00000000000
--- a/tests/language_2/regress/regress20394_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-
-// @dart = 2.9
-import 'regress20394_lib.dart';
-
-class M {}
-
-class C extends Super with M {
-  C() : super._private(42);
-  //    ^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_CONSTRUCTOR_IN_INITIALIZER
-  // [cfe] Superclass has no constructor named 'Super._private'.
-}
-
-main() {
-  new C();
-}
diff --git a/tests/language_2/regress/regress20476_test.dart b/tests/language_2/regress/regress20476_test.dart
deleted file mode 100644
index 5b4c9e8f4dd..00000000000
--- a/tests/language_2/regress/regress20476_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-foo() {
-  try {
-    try {
-      return 1;
-    } catch (e1) {} finally {
-      return 3;
-    }
-  } catch (e2) {} finally {
-    return 5;
-  }
-}
-
-main() {
-  Expect.equals(5, foo());
-}
diff --git a/tests/language_2/regress/regress20840_test.dart b/tests/language_2/regress/regress20840_test.dart
deleted file mode 100644
index 792376442fe..00000000000
--- a/tests/language_2/regress/regress20840_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 20840.
-
-class SomeClass {
-  Object someField;
-
-  SomeClass() {
-    [1].forEach((o) => someMethod());
-    someField = new Object();
-  }
-
-  void someMethod() {
-    if (someField != null) {
-      throw "FAIL";
-    }
-  }
-}
-
-void main() {
-  new SomeClass();
-}
diff --git a/tests/language_2/regress/regress21016_test.dart b/tests/language_2/regress/regress21016_test.dart
deleted file mode 100644
index a98a85b291e..00000000000
--- a/tests/language_2/regress/regress21016_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that we give up on tracing a function if one of its closurizations
-// escapes tracing.
-
-class A {
-  var _boo = 22;
-  get boo {
-    return _boo;
-    return 1;
-  }
-}
-
-class B {
-  var _bar = 42;
-  get boo {
-    return _bar;
-    return 1;
-  }
-}
-
-class Holder {
-  tearMe(x) => x.boo;
-}
-
-var list = [];
-
-main() {
-  var holder = new Holder();
-  var hide = ((X) => X)(holder.tearMe);
-  hide(new A());
-  list.add(holder.tearMe);
-  var x = list[0];
-  x(new B());
-}
diff --git a/tests/language_2/regress/regress21793_runtime_test.dart b/tests/language_2/regress/regress21793_runtime_test.dart
deleted file mode 100644
index f7bc9da2ab6..00000000000
--- a/tests/language_2/regress/regress21793_runtime_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Regression test for issue 21793.
-
-import 'package:expect/expect.dart';
-
-
-class A {
-  call(x) => x;
-}
-
-
-main() {
-  print(new A()(499));
-}
diff --git a/tests/language_2/regress/regress21793_test.dart b/tests/language_2/regress/regress21793_test.dart
deleted file mode 100644
index dde067241fa..00000000000
--- a/tests/language_2/regress/regress21793_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 21793.
-
-import 'package:expect/expect.dart';
-
-/*
-class A {
-  call(x) => x;
-}
-*/
-
-main() {
-  print(new A()(499));
-  //        ^
-  // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-  // [cfe] Couldn't find constructor 'A'.
-}
diff --git a/tests/language_2/regress/regress21795_test.dart b/tests/language_2/regress/regress21795_test.dart
deleted file mode 100644
index bc0d46e73bb..00000000000
--- a/tests/language_2/regress/regress21795_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 21795.
-
-@pragma("vm:entry-point") // Prevent obfuscation
-foo(t) {
-  try {
-    if (t == 123) throw 42;
-  } finally {}
-}
-
-bar() {
-  try {
-    return 42;
-  } finally {}
-}
-
-class A {
-  test(t) {
-    try {
-      foo(t);
-    } finally {
-      if (t == 0) {
-        try {} catch (err, st) {}
-      }
-    }
-  }
-}
-
-main() {
-  var a = new A();
-  for (var i = 0; i < 10000; ++i) a.test(0);
-  try {
-    a.test(123);
-  } catch (e, s) {
-    if (s.toString().indexOf("foo") == -1) {
-      print(s);
-      throw "Expected foo in stacktrace!";
-    }
-  }
-}
diff --git a/tests/language_2/regress/regress21912_runtime_test.dart b/tests/language_2/regress/regress21912_runtime_test.dart
deleted file mode 100644
index 5d98f6db03d..00000000000
--- a/tests/language_2/regress/regress21912_runtime_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Regression test for issue 21912.
-
-class A {}
-
-class B extends A {}
-
-typedef T Function2<S, T>(S z);
-typedef B AToB(A x);
-typedef A BToA(B x);
-
-void main() {
-  {
-    Function2<Function2<A, B>, Function2<B, A>> t1;
-    Function2<AToB, BToA> t2;
-    Function2<Function2<int, double>, Function2<int, double>> left;
-
-
-  }
-}
diff --git a/tests/language_2/regress/regress21912_test.dart b/tests/language_2/regress/regress21912_test.dart
deleted file mode 100644
index d103a787088..00000000000
--- a/tests/language_2/regress/regress21912_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 21912.
-
-class A {}
-
-class B extends A {}
-
-typedef T Function2<S, T>(S z);
-typedef B AToB(A x);
-typedef A BToA(B x);
-
-void main() {
-  {
-    Function2<Function2<A, B>, Function2<B, A>> t1;
-    Function2<AToB, BToA> t2;
-    Function2<Function2<int, double>, Function2<int, double>> left;
-    left = t1;
-    //     ^^
-    // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-    // [cfe] A value of type 'A Function(B) Function(B Function(A))' can't be assigned to a variable of type 'double Function(int) Function(double Function(int))'.
-    left = t2;
-    //     ^^
-    // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-    // [cfe] A value of type 'A Function(B) Function(B Function(A))' can't be assigned to a variable of type 'double Function(int) Function(double Function(int))'.
-  }
-}
diff --git a/tests/language_2/regress/regress21957_double_test.dart b/tests/language_2/regress/regress21957_double_test.dart
deleted file mode 100644
index 097f11d6deb..00000000000
--- a/tests/language_2/regress/regress21957_double_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check slow path for PotentialUnboxedStore.
-// VMOptions=--optimization_counter_threshold=-1
-
-main() {
-  for (int i = 0; i < 1000000; i++) {
-    new A();
-  }
-}
-
-class A {
-  var a = 1.0;
-}
diff --git a/tests/language_2/regress/regress21957_float32x4_test.dart b/tests/language_2/regress/regress21957_float32x4_test.dart
deleted file mode 100644
index d668029aedf..00000000000
--- a/tests/language_2/regress/regress21957_float32x4_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check slow path for PotentialUnboxedStore.
-// VMOptions=--optimization_counter_threshold=-1
-
-import "dart:typed_data";
-
-main() {
-  for (int i = 0; i < 1000000; i++) {
-    new A();
-  }
-}
-
-class A {
-  var a = new Float32x4(1.0, 2.0, 3.0, 4.0);
-}
diff --git a/tests/language_2/regress/regress21957_float64x2_test.dart b/tests/language_2/regress/regress21957_float64x2_test.dart
deleted file mode 100644
index 9b9890c2f41..00000000000
--- a/tests/language_2/regress/regress21957_float64x2_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check slow path for PotentialUnboxedStore.
-// VMOptions=--optimization_counter_threshold=-1
-
-import "dart:typed_data";
-
-main() {
-  for (int i = 0; i < 1000000; i++) {
-    new A();
-  }
-}
-
-class A {
-  var a = new Float64x2(1.0, 2.0);
-}
diff --git a/tests/language_2/regress/regress21998_1_test.dart b/tests/language_2/regress/regress21998_1_test.dart
deleted file mode 100644
index 8f12a0b9c75..00000000000
--- a/tests/language_2/regress/regress21998_1_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:math' as Math;
-import 'package:expect/expect.dart';
-
-main() {
-  Expect.equals(4, new C().m());
-}
-
-class C {
-  max(a) => a;
-
-  m() {
-    return max(Math.max(2, 4));
-  }
-}
diff --git a/tests/language_2/regress/regress21998_2_test.dart b/tests/language_2/regress/regress21998_2_test.dart
deleted file mode 100644
index 83cdd76a644..00000000000
--- a/tests/language_2/regress/regress21998_2_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:math' as Math;
-import 'package:expect/expect.dart';
-import 'regress21998_lib1.dart' as lib1;
-
-main() {
-  Expect.equals(4, new C().m());
-}
-
-class C {
-  max(a) => a;
-
-  m() {
-    return max(Math.max(2, lib1.max('a', 'b', 'cd').length));
-  }
-}
diff --git a/tests/language_2/regress/regress21998_3_test.dart b/tests/language_2/regress/regress21998_3_test.dart
deleted file mode 100644
index 970f31983bb..00000000000
--- a/tests/language_2/regress/regress21998_3_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:math' as Math;
-import 'package:expect/expect.dart';
-import 'regress21998_lib1.dart' as lib1;
-import 'regress21998_lib2.dart';
-
-main() {
-  Expect.equals(4, new C().m());
-}
-
-class C {
-  max(a) => a;
-
-  m() {
-    return max(
-        Math.max<num>(lib2_max(1, 2), lib1.max('a', 'b', 'cd').length));
-  }
-}
diff --git a/tests/language_2/regress/regress21998_4_test.dart b/tests/language_2/regress/regress21998_4_test.dart
deleted file mode 100644
index c1f6a0cb828..00000000000
--- a/tests/language_2/regress/regress21998_4_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:math' as Math;
-import 'package:expect/expect.dart';
-import 'regress21998_lib1.dart' as lib1;
-import 'regress21998_lib2.dart';
-import 'regress21998_lib3.dart';
-
-main() {
-  Expect.equals(4, new C().m());
-}
-
-class C {
-  max(a) => a;
-
-  m() {
-    return max(Math.max<num>(
-        lib3_max(0, lib2_max(1, 2)), lib1.max('a', 'b', 'cd').length));
-  }
-}
diff --git a/tests/language_2/regress/regress21998_lib1.dart b/tests/language_2/regress/regress21998_lib1.dart
deleted file mode 100644
index 2e3912cfdb2..00000000000
--- a/tests/language_2/regress/regress21998_lib1.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library regress_21998_lib1;
-
-String max(String a, String b, String c) => '$a$b$c';
diff --git a/tests/language_2/regress/regress21998_lib2.dart b/tests/language_2/regress/regress21998_lib2.dart
deleted file mode 100644
index 8cbff7c7a54..00000000000
--- a/tests/language_2/regress/regress21998_lib2.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library regress_21998_lib2;
-
-import 'dart:math';
-
-lib2_max(a, b) => max<num>(a, b);
diff --git a/tests/language_2/regress/regress21998_lib3.dart b/tests/language_2/regress/regress21998_lib3.dart
deleted file mode 100644
index 3e355e5bb48..00000000000
--- a/tests/language_2/regress/regress21998_lib3.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library regress_21998_lib3;
-
-import 'dart:math' as math;
-
-lib3_max(a, b) => math.max<num>(a, b);
diff --git a/tests/language_2/regress/regress22438_test.dart b/tests/language_2/regress/regress22438_test.dart
deleted file mode 100644
index 13253fee03b..00000000000
--- a/tests/language_2/regress/regress22438_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-
-main() async {
-  var error = "no error";
-  try {
-    try {
-      await new Future.error("error");
-    } on MissingType catch (e) {}
-    //   ^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.NON_TYPE_IN_CATCH_CLAUSE
-    // [cfe] 'MissingType' isn't a type.
-  } catch (e) {
-    error = e;
-  }
-  Expect.isTrue(error is TypeError);
-}
diff --git a/tests/language_2/regress/regress22443_lib.dart b/tests/language_2/regress/regress22443_lib.dart
deleted file mode 100644
index cc7c6d5cc1e..00000000000
--- a/tests/language_2/regress/regress22443_lib.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library regress_22443;
-
-class LazyClass {}
diff --git a/tests/language_2/regress/regress22443_test.dart b/tests/language_2/regress/regress22443_test.dart
deleted file mode 100644
index c3272411c32..00000000000
--- a/tests/language_2/regress/regress22443_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'regress22443_lib.dart' deferred as D;
-import 'package:expect/expect.dart';
-
-int fooCount = 0;
-
-foo() {
-  fooCount++;
-  return new D.LazyClass();
-}
-
-main() {
-  var caughtIt = false;
-  try {
-    foo();
-  } catch (e) {
-    caughtIt = true;
-  }
-  D.loadLibrary().then((_) {
-    foo();
-    Expect.isTrue(caughtIt);
-    Expect.equals(2, fooCount);
-  });
-}
diff --git a/tests/language_2/regress/regress22445_test.dart b/tests/language_2/regress/regress22445_test.dart
deleted file mode 100644
index fc569aba475..00000000000
--- a/tests/language_2/regress/regress22445_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-
-foo() async {
-  try {
-    print("a");
-    await new Future.value(3);
-    print("b");
-    throw "Error";
-    print("c");
-  } catch (e) {
-    print("d");
-    await new Future.error("Error2");
-  } finally {
-    print("e");
-  }
-  print("f");
-}
-
-main() async {
-  var error = "no error";
-  try {
-    await foo();
-  } catch (e) {
-    error = e;
-  }
-  Expect.equals("Error2", error);
-}
diff --git a/tests/language_2/regress/regress22579_test.dart b/tests/language_2/regress/regress22579_test.dart
deleted file mode 100644
index 600006c1145..00000000000
--- a/tests/language_2/regress/regress22579_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-
-foo() async {
-  try {
-    await 1;
-  } catch (e) {}
-  throw "error";
-}
-
-main() async {
-  var error = "no error";
-  try {
-    await foo();
-  } catch (e) {
-    error = e;
-  }
-  Expect.equals("error", error);
-}
diff --git a/tests/language_2/regress/regress22666_test.dart b/tests/language_2/regress/regress22666_test.dart
deleted file mode 100644
index fd89422439d..00000000000
--- a/tests/language_2/regress/regress22666_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:collection';
-
-class A extends Object with LinkedListEntry<A> {}
-
-main() => new A();
diff --git a/tests/language_2/regress/regress22700_test.dart b/tests/language_2/regress/regress22700_test.dart
deleted file mode 100644
index 844c381b46f..00000000000
--- a/tests/language_2/regress/regress22700_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class WrapT<T> {
-  Type get type => T;
-}
-
-printAndCheck(t) {
-  print(t);
-  Expect.equals(String, t);
-}
-
-class MyClass<T> {
-  factory MyClass.works() {
-    Type t = new WrapT<T>().type;
-    printAndCheck(t);
-  }
-
-  factory MyClass.works2() {
-    printAndCheck(T);
-  }
-}
-
-main() {
-  new MyClass<String>.works();
-  new MyClass<String>.works2();
-}
diff --git a/tests/language_2/regress/regress22719_test.dart b/tests/language_2/regress/regress22719_test.dart
deleted file mode 100644
index 01be222a0a1..00000000000
--- a/tests/language_2/regress/regress22719_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:collection';
-import 'package:expect/expect.dart';
-
-abstract class A {}
-
-abstract class B extends Object with IterableMixin<int> {
-  Iterator<int> get iterator;
-}
-
-abstract class C extends A with IterableMixin<int> implements B {
-  final list = [1, 2, 3, 4, 5];
-  Iterator<int> get iterator => list.iterator;
-}
-
-class D extends C {}
-
-void main() {
-  var d = new D();
-  var expected = 1;
-  for (var i in d) {
-    Expect.equals(expected, i);
-    expected += 1;
-  }
-}
diff --git a/tests/language_2/regress/regress22728_test.dart b/tests/language_2/regress/regress22728_test.dart
deleted file mode 100644
index 0e0aea6b6e6..00000000000
--- a/tests/language_2/regress/regress22728_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-bool assertsChecked() {
-  bool checked = false;
-  try {
-    assert(false);
-  } on AssertionError catch (error) {
-    checked = true;
-  }
-  return checked;
-}
-
-main() async {
-  bool fault = false;
-  try {
-    assert(await false);
-  } on AssertionError catch (error) {
-    fault = true;
-  }
-  Expect.equals(assertsChecked(), fault);
-}
diff --git a/tests/language_2/regress/regress22777_test.dart b/tests/language_2/regress/regress22777_test.dart
deleted file mode 100644
index 99fbdb23a80..00000000000
--- a/tests/language_2/regress/regress22777_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:async_helper/async_helper.dart";
-import "package:expect/expect.dart";
-
-var a = 0;
-
-testSync() {
-  do {
-    continue;
-  } while (throw "Error");
-  a = 100;
-}
-
-testAsync() async {
-  do {
-    continue;
-  } while (await (throw "Error"));
-  a = 100;
-}
-
-test() async {
-  try {
-    testSync();
-  } catch (e) {
-    Expect.equals(e, "Error");
-  }
-  Expect.equals(a, 0);
-
-  try {
-    await testAsync();
-  } catch (e) {
-    Expect.equals(e, "Error");
-  }
-  Expect.equals(a, 0);
-}
-
-main() {
-  asyncStart();
-  test().then((_) => asyncEnd());
-}
diff --git a/tests/language_2/regress/regress22780_test.dart b/tests/language_2/regress/regress22780_test.dart
deleted file mode 100644
index d90a9459e39..00000000000
--- a/tests/language_2/regress/regress22780_test.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  f() => "Oh, the joy of ${f()}"; print(f()); //# 01: runtime error
-}
diff --git a/tests/language_2/regress/regress22800_test.dart b/tests/language_2/regress/regress22800_test.dart
deleted file mode 100644
index 929bb9deb64..00000000000
--- a/tests/language_2/regress/regress22800_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check proper exception handler finalization, even for unreachable handlers.
-
-void main() {
-  try {
-    print("Starting here");
-    throw 0;
-    try {} catch (e) {}
-  } catch (e) {
-    print("Caught in here: $e");
-  }
-  try {} catch (e) {}
-}
diff --git a/tests/language_2/regress/regress22822_test.dart b/tests/language_2/regress/regress22822_test.dart
deleted file mode 100644
index 8a5e0ce0652..00000000000
--- a/tests/language_2/regress/regress22822_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 22822. The assignment in the finally block
-// used to crash because it was executed at context level 1 instead of
-// context level 2.
-
-import 'package:expect/expect.dart';
-
-test(b) {
-  try {
-    for (int i = 0; i < 10; i++) {
-      // Closurizing i and b, thus the return statement
-      // executes at context level 2, and the code in
-      // the finally block runs at context level 1.
-      return () => i + b;
-    }
-  } finally {
-    b = 10;
-  }
-}
-
-main() {
-  var c = test(0);
-  Expect.equals(10, c());
-}
diff --git a/tests/language_2/regress/regress22858_test.dart b/tests/language_2/regress/regress22858_test.dart
deleted file mode 100644
index fbc26cce4c8..00000000000
--- a/tests/language_2/regress/regress22858_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  var good = "good";
-
-  f1() {
-    {
-      var bad = "bad";
-      f2() {
-        bad;
-      }
-    }
-
-    Expect.equals("good", good);
-    do {
-      Expect.equals("good", good);
-      int ugly = 0;
-      f3() {
-        ugly;
-      }
-    } while (false);
-  }
-
-  f1();
-}
diff --git a/tests/language_2/regress/regress22936_test.dart b/tests/language_2/regress/regress22936_test.dart
deleted file mode 100644
index 58010efa735..00000000000
--- a/tests/language_2/regress/regress22936_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 22936.
-
-import 'package:expect/expect.dart';
-
-bool fooCalled = false;
-
-foo() {
-  fooCalled = true;
-  return null;
-}
-
-main() {
-  final x = null;
-  try {
-    x = foo();
-//  ^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_LOCAL
-// [cfe] Can't assign to the final variable 'x'.
-  } on NoSuchMethodError {}
-  Expect.isTrue(fooCalled);
-}
diff --git a/tests/language_2/regress/regress22976_test.dart b/tests/language_2/regress/regress22976_test.dart
deleted file mode 100644
index dc9a53fe82d..00000000000
--- a/tests/language_2/regress/regress22976_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 22976.
-
-class A<T> {}
-
-class B<T> implements A<T> {}
-
-class C<S, T> implements B<S>, A<T> {}
-// [error line 13, column 7, length 1]
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_GENERIC_INTERFACES
-//    ^
-// [cfe] 'C' can't implement both 'A<S>' and 'A<T>'
-
-main() {
-  C<int, String> c1 = new C<int, String>();
-  C<String, int> c2 = new C<String, int>();
-  A<int> a0 = c1;
-  A<int> a1 = c2;
-  //          ^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  // [cfe] A value of type 'C<String, int>' can't be assigned to a variable of type 'A<int>'.
-}
diff --git a/tests/language_2/regress/regress23038_runtime_test.dart b/tests/language_2/regress/regress23038_runtime_test.dart
deleted file mode 100644
index 1e69c04072b..00000000000
--- a/tests/language_2/regress/regress23038_runtime_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class C<T> {
-  const
-
-  C()
-
-  ;
-}
-
-main() {
-  const C<int>();
-}
diff --git a/tests/language_2/regress/regress23038_test.dart b/tests/language_2/regress/regress23038_test.dart
deleted file mode 100644
index 605f629f9bf..00000000000
--- a/tests/language_2/regress/regress23038_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class C<T> {
-  const
-    factory
-  C()
-//^
-// [cfe] Cyclic definition of factory 'C'.
-    = C<C<T>>
-    //^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.RECURSIVE_CONSTRUCTOR_REDIRECT
-  ;
-}
-
-main() {
-  const C<int>();
-}
diff --git a/tests/language_2/regress/regress23046_test.dart b/tests/language_2/regress/regress23046_test.dart
deleted file mode 100644
index 83ab215039d..00000000000
--- a/tests/language_2/regress/regress23046_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Make sure the logic for skipping the initial quotes in a string isn't
-// re-triggered after an interpolation expression.
-
-const String x = '$y"';
-const String y = 'foo';
-const Map m = const {x: 0, y: 1};
-
-main() {
-  Expect.equals(x, 'foo"');
-  Expect.equals(m.length, 2);
-}
diff --git a/tests/language_2/regress/regress23051_test.dart b/tests/language_2/regress/regress23051_test.dart
deleted file mode 100644
index 7aee0bf7078..00000000000
--- a/tests/language_2/regress/regress23051_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 23051.
-
-main() {
-  new A(); //                                //# 01: continued
-}
-
-class A { //                                 //# 01: continued
-  // Note the trailing ' in the next line.   //# 01: continued
-  get foo => bar();' //                      //# 01: syntax error
-  //                                         //# 01: continued
-  String bar( //                             //# 01: continued
diff --git a/tests/language_2/regress/regress23089_test.dart b/tests/language_2/regress/regress23089_test.dart
deleted file mode 100644
index d42cded74aa..00000000000
--- a/tests/language_2/regress/regress23089_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test doesn't cover http://dartbug.com/23089 anymore.
-// Generic bounds now must be fully instantiated. This means that the
-// cycle is not possible anymore.
-
-abstract class IPeer<C extends IP2PClient> {}
-//                             ^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NOT_INSTANTIATED_BOUND
-
-abstract class IPeerRoom<P extends IPeer, C extends IP2PClient> {}
-//                                 ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NOT_INSTANTIATED_BOUND
-//                                                  ^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NOT_INSTANTIATED_BOUND
-
-abstract class IP2PClient<R extends IPeerRoom> {}
-//             ^
-// [cfe] Generic type 'IP2PClient' can't be used without type arguments in the bounds of its own type variables. It is referenced indirectly through 'IPeerRoom'.
-//                                  ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NOT_INSTANTIATED_BOUND
-
-class _Peer<C extends _P2PClient> implements IPeer<C> {}
-//                    ^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NOT_INSTANTIATED_BOUND
-
-class _PeerRoom<P extends _Peer, C extends _P2PClient>
-//                        ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NOT_INSTANTIATED_BOUND
-//                                         ^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NOT_INSTANTIATED_BOUND
-    implements
-        IPeerRoom<P, C> {}
-
-abstract class _P2PClient<R extends _PeerRoom, P extends _Peer>
-//             ^
-// [cfe] Generic type '_P2PClient' can't be used without type arguments in the bounds of its own type variables. It is referenced indirectly through '_Peer'.
-// [cfe] Generic type '_P2PClient' can't be used without type arguments in the bounds of its own type variables. It is referenced indirectly through '_PeerRoom'.
-//                                  ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NOT_INSTANTIATED_BOUND
-//                                                       ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NOT_INSTANTIATED_BOUND
-    implements
-        IP2PClient<R> {}
-
-void main() {}
diff --git a/tests/language_2/regress/regress23244_test.dart b/tests/language_2/regress/regress23244_test.dart
deleted file mode 100644
index e3669e7ccad..00000000000
--- a/tests/language_2/regress/regress23244_test.dart
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test case for http://dartbug.com/23244
-import 'dart:async';
-import 'dart:isolate';
-import 'package:async_helper/async_helper.dart';
-
-enum Fisk {
-  torsk,
-}
-
-isolate1(Object port) {
-  (port as SendPort).send(Fisk.torsk);
-}
-
-isolate2(Object port) {
-  (port as SendPort).send([Fisk.torsk]);
-}
-
-isolate3(Object port) {
-  var x = new Map<int, Fisk>();
-  x[0] = Fisk.torsk;
-  x[1] = Fisk.torsk;
-  (port as SendPort).send(x);
-}
-
-main() async {
-  var port = new ReceivePort();
-  asyncStart();
-  await Isolate.spawn(isolate1, port.sendPort);
-  Completer completer1 = new Completer();
-  port.listen((message) {
-    print("Received $message");
-    port.close();
-    expectTorsk(message);
-    completer1.complete();
-  });
-  await completer1.future;
-  Completer completer2 = new Completer();
-  port = new ReceivePort();
-  await Isolate.spawn(isolate2, port.sendPort);
-  port.listen((message) {
-    print("Received $message");
-    port.close();
-    expectTorsk(message[0]);
-    completer2.complete();
-  });
-  await completer2.future;
-  port = new ReceivePort();
-  await Isolate.spawn(isolate3, port.sendPort);
-  port.listen((message) {
-    print("Received $message");
-    port.close();
-    expectTorsk(message[0]);
-    expectTorsk(message[1]);
-    asyncEnd();
-  });
-}
-
-expectTorsk(Fisk fisk) {
-  if (fisk != Fisk.torsk) {
-    throw "$fisk isn't a ${Fisk.torsk}";
-  }
-}
diff --git a/tests/language_2/regress/regress23408_lib.dart b/tests/language_2/regress/regress23408_lib.dart
deleted file mode 100644
index 2ff9cedff8c..00000000000
--- a/tests/language_2/regress/regress23408_lib.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library regress_23408_lib;
-
-import "regress23408_test.dart" as main;
-
-class K extends main.C {
-  K();
-}
diff --git a/tests/language_2/regress/regress23408_test.dart b/tests/language_2/regress/regress23408_test.dart
deleted file mode 100644
index 2a153c2572f..00000000000
--- a/tests/language_2/regress/regress23408_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library regress_23408_test;
-
-import 'package:expect/expect.dart';
-
-import 'regress23408_lib.dart' deferred as lib;
-
-class C {
-  var v = 55;
-  C();
-  factory C.c() = lib.K;
-}
-
-void main() {
-  lib.loadLibrary().then((_) {
-    var z = new C.c();
-    Expect.equals(55, z.v);
-  });
-}
diff --git a/tests/language_2/regress/regress23408a_test.dart b/tests/language_2/regress/regress23408a_test.dart
deleted file mode 100644
index 8c417d84fa4..00000000000
--- a/tests/language_2/regress/regress23408a_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library regress_23408a_test;
-
-import 'package:expect/expect.dart';
-
-import 'regress23408_lib.dart' deferred as lib;
-
-class A<T> extends C {
-  get t => T;
-}
-
-class C {
-  C();
-  factory C.l() = A<lib.K>;
-  //                ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_ANNOTATION_DEFERRED_CLASS
-  // [cfe] unspecified
-  get t => null;
-}
-
-void main() async {
-  await lib.loadLibrary();
-  Expect.equals(lib.K, C.l().t);
-}
diff --git a/tests/language_2/regress/regress23498_test.dart b/tests/language_2/regress/regress23498_test.dart
deleted file mode 100644
index e6db4929709..00000000000
--- a/tests/language_2/regress/regress23498_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-
-foo() async {
-  try {
-    try {
-      await new Future.error('error');
-    } catch (error) {
-      print("caught once");
-      throw 'error';
-    }
-  } catch (error) {
-    print("caught twice");
-    throw 'error';
-  }
-}
-
-main() async {
-  var error = "no error";
-  try {
-    await foo();
-  } catch (e) {
-    error = e;
-  }
-  Expect.equals("error", error);
-}
diff --git a/tests/language_2/regress/regress23500_test.dart b/tests/language_2/regress/regress23500_test.dart
deleted file mode 100644
index 931e57f4281..00000000000
--- a/tests/language_2/regress/regress23500_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-
-foo() async {
-  try {
-    try {
-      await for (var c in new Stream.fromIterable([])) {} // //# 01: ok
-      await 0; // //# 02: ok
-    } catch (error) {}
-  } catch (error) {}
-  throw "error";
-}
-
-main() async {
-  var error = "no error";
-  try {
-    await foo();
-  } catch (e) {
-    error = e;
-  }
-  Expect.equals("error", error);
-}
diff --git a/tests/language_2/regress/regress23537_test.dart b/tests/language_2/regress/regress23537_test.dart
deleted file mode 100644
index 78cf2196d54..00000000000
--- a/tests/language_2/regress/regress23537_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-var d;
-
-test(a) {
-  while (true) {
-    try {
-      var b;
-      try {
-        for (int i = 0; i < 10; i++) {
-          // Closurizing i, a, and b, thus the return statement
-          // executes at context level 3, and the code in
-          // the finally blocks runs at context level 1 and 2.
-          return () => i + a + b;
-        }
-      } finally {
-        b = 10;
-        while (true) {
-          // Chain a new context.
-          var c = 5;
-          d = () => a + b + c;
-          break;
-        }
-      }
-    } finally {
-      a = 1;
-    }
-    break;
-  }
-}
-
-main() {
-  var c = test(0);
-  Expect.equals(11, c());
-  Expect.equals(16, d());
-}
diff --git a/tests/language_2/regress/regress23650_test.dart b/tests/language_2/regress/regress23650_test.dart
deleted file mode 100644
index 036e689a8ca..00000000000
--- a/tests/language_2/regress/regress23650_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that type variables in try-catch work.
-
-import "package:expect/expect.dart";
-
-class C<T> {
-  C.foo();
-  factory C() {
-    try {
-      return new C<T>.foo();
-    } finally {}
-  }
-}
-
-main() {
-  var c = new C<int>();
-  Expect.isTrue(c is C<int>);
-  Expect.isFalse(c is C<String>);
-}
diff --git a/tests/language_2/regress/regress23746_test.dart b/tests/language_2/regress/regress23746_test.dart
deleted file mode 100644
index 00c0e4fe2ee..00000000000
--- a/tests/language_2/regress/regress23746_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart=2.9
-
-import "package:expect/expect.dart";
-
-class A<T, U> {
-  B<T> get b => B<T>();
-}
-
-class B<T> {}
-
-@pragma('vm:never-inline')
-bool test(Object a, Object b) {
-  print(a.runtimeType);
-  print(b.runtimeType);
-  return a.runtimeType == b.runtimeType;
-}
-
-void main() {
-  Expect.isTrue(test(B<int>(), A<int, String>().b));
-}
diff --git a/tests/language_2/regress/regress23914_test.dart b/tests/language_2/regress/regress23914_test.dart
deleted file mode 100644
index f40c5d2d38b..00000000000
--- a/tests/language_2/regress/regress23914_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:collection';
-
-class C extends LinkedListEntry<C> {}
-
-main() {
-  var ll = new LinkedList<C>();
-  var a = new List.unmodifiable(ll);
-}
diff --git a/tests/language_2/regress/regress23996_test.dart b/tests/language_2/regress/regress23996_test.dart
deleted file mode 100644
index 7551471a21b..00000000000
--- a/tests/language_2/regress/regress23996_test.dart
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:async_helper/async_helper.dart";
-
-/// This test verifies that an await for loop sends the correct
-/// signals to the stream it iterates over:
-/// 1) A listen event.
-/// 2) A pause event when the loop body is awaiting something,
-///    and more elements arrive on the stream.  See issue
-///    https://github.com/dart-lang/sdk/issues/23996 .
-/// 3) A resume event, when the loop is again ready to iterate.
-main() {
-  Completer listenEventReceived = new Completer();
-  Completer pauseEventReceived = new Completer();
-  Completer resumeEventReceived = new Completer();
-  StreamController controller = new StreamController(
-      onListen: () => listenEventReceived.complete(),
-      onPause: () => pauseEventReceived.complete(),
-      onResume: () => resumeEventReceived.complete());
-
-  Completer forLoopEntered = new Completer();
-
-  /// The send function puts items on the stream. It waits for a
-  /// listener, puts "first" on the stream, waits for the for loop
-  /// to start (and eventually block), puts "second" on the stream
-  /// multiple times, letting the event loop run, until the for loop
-  /// pauses the stream because it it blocked.
-  /// The for loop unblocks after the pause message is received, and
-  /// reads the stream items, sending a stream resume message when it
-  /// is ready for more.
-  /// Then the send function puts a final "third" on the stream, and
-  /// closes the stream.
-  send() async {
-    await listenEventReceived.future;
-    controller.add('first');
-    await forLoopEntered.future;
-    var timer = new Timer.periodic(new Duration(milliseconds: 10), (timer) {
-      controller.add('second');
-    });
-    await pauseEventReceived.future;
-    // pauseEventReceived.future completes when controller.stream is
-    // paused by the await-for loop below. What's specified is that
-    // await-for must pause immediately on an "await", but instead
-    // the implementations agree on not pausing until receiving the
-    // next event. For this reason, [timer] will call its callback at
-    // least once before we cancel it again.
-    timer.cancel();
-    await resumeEventReceived.future;
-    controller.add('third');
-    controller.close();
-  }
-
-  receive() async {
-    bool thirdReceived = false;
-    await for (var entry in controller.stream) {
-      if (entry == 'first') {
-        forLoopEntered.complete();
-        await pauseEventReceived.future;
-      } else if (entry == 'third') {
-        thirdReceived = true;
-      }
-    }
-    if (!thirdReceived) {
-      throw "Error in await-for loop: 'third' not received";
-    }
-  }
-
-  asyncTest(() async {
-    // We need to start both functions in parallel, and wait on them both.
-    var f = send();
-    await receive();
-    await f;
-  });
-}
diff --git a/tests/language_2/regress/regress24283_test.dart b/tests/language_2/regress/regress24283_test.dart
deleted file mode 100644
index 28568871be7..00000000000
--- a/tests/language_2/regress/regress24283_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  // Smi
-  var i = 1 << 30;
-  var j = -i;
-  Expect.equals(0, i >> 37);
-  Expect.equals(-1, j >> 37);
-  // Mint
-  i = 1 << 50;
-  j = -i;
-  Expect.equals(0, i >> 67);
-  Expect.equals(-1, j >> 67);
-}
diff --git a/tests/language_2/regress/regress24567_test.dart b/tests/language_2/regress/regress24567_test.dart
deleted file mode 100644
index e49fbfa6235..00000000000
--- a/tests/language_2/regress/regress24567_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:math' as math;
-
-class Random {}
-
-typedef F(Random r);
-
-main() {
-  f(Random r) {}
-  g(math.Random r) {}
-  Expect.isTrue(f is F);
-  Expect.isFalse(g is F);
-}
diff --git a/tests/language_2/regress/regress24935_test.dart b/tests/language_2/regress/regress24935_test.dart
deleted file mode 100644
index b225938da4d..00000000000
--- a/tests/language_2/regress/regress24935_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-S() => new Stream.fromIterable([1]);
-
-Future main() async {
-  L:
-  for (var s = 0; s < 10; s++) {
-    await for (var s1 in S()) {
-      await for (var s2 in S()) {
-        continue L;
-      }
-    }
-  }
-  // Regression check: make sure throwing an exception
-  // after breaking out of the innermost loop does not
-  // crash the VM. In other words, the expected test
-  // outcome is an unhandled exception.
-  throw "ball"; //# 01: runtime error
-}
diff --git a/tests/language_2/regress/regress25122_test.dart b/tests/language_2/regress/regress25122_test.dart
deleted file mode 100644
index c3cad4fa666..00000000000
--- a/tests/language_2/regress/regress25122_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {}
-
-class AbstractListMember<E, M extends AbstractListMember<E, M>> {}
-
-class RepoListMember<M extends RepoListMember<M>>
-    extends AbstractListMember<String, M> {}
diff --git a/tests/language_2/regress/regress25246_1_test.dart b/tests/language_2/regress/regress25246_1_test.dart
deleted file mode 100644
index 722245c1607..00000000000
--- a/tests/language_2/regress/regress25246_1_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'regress25246_2.dart';
-
-class ConcreteClass extends Object with MixIn {}
-
-void main() {
-  new ConcreteClass().test();
-}
diff --git a/tests/language_2/regress/regress25246_2.dart b/tests/language_2/regress/regress25246_2.dart
deleted file mode 100644
index 438b9c3cee9..00000000000
--- a/tests/language_2/regress/regress25246_2.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'regress25246_3.dart';
-
-class MixIn {
-  var test3 = new Test3(() {});
-  void test() {
-    test3.test();
-  }
-}
diff --git a/tests/language_2/regress/regress25246_3.dart b/tests/language_2/regress/regress25246_3.dart
deleted file mode 100644
index fb781b29410..00000000000
--- a/tests/language_2/regress/regress25246_3.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Test3 {
-  final fn;
-  Test3(this.fn);
-  void test() {
-    fn();
-  }
-}
diff --git a/tests/language_2/regress/regress25389_part.dart b/tests/language_2/regress/regress25389_part.dart
deleted file mode 100644
index 0117fa01eed..00000000000
--- a/tests/language_2/regress/regress25389_part.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-part of regress_25389;
-
-abstract class ComponentState<S extends ComponentState<S>> {}
-
-abstract class AbstractListEditorState<D,
-    S extends AbstractListEditorState<D, S>> extends ComponentState<S> {}
-
-class IssueListEditorState
-    extends AbstractListEditorState<String, IssueListEditorState>
-    implements ComponentState<IssueListEditorState> {}
diff --git a/tests/language_2/regress/regress25389_test.dart b/tests/language_2/regress/regress25389_test.dart
deleted file mode 100644
index 546350bbf3f..00000000000
--- a/tests/language_2/regress/regress25389_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library regress_25389;
-
-part 'regress25389_part.dart';
-
-main() {
-  new IssueListEditorState();
-}
-
-abstract class AbstractListEditor<D, S extends AbstractListEditorState<D, S>> {}
diff --git a/tests/language_2/regress/regress25550_test.dart b/tests/language_2/regress/regress25550_test.dart
deleted file mode 100644
index d679f363430..00000000000
--- a/tests/language_2/regress/regress25550_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-typedef int Adder(int a, int b);
-
-class Mock {
-  noSuchMethod(i) => null;
-}
-
-class MockAdder extends Mock {
-  int call(int a, int b);
-}
-
-main() {
-  Adder adder = new MockAdder();
-}
diff --git a/tests/language_2/regress/regress25568_test.dart b/tests/language_2/regress/regress25568_test.dart
deleted file mode 100644
index 7f756efee12..00000000000
--- a/tests/language_2/regress/regress25568_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  var c1 = new BacklogListEditorState();
-  var c2 = new BacklogsState();
-}
-
-class BacklogListEditorState
-    extends AbstractListEditorState<BacklogsState, BacklogListEditorState> {}
-
-class BacklogsState extends MutableEntityState<BacklogsState> {}
-
-abstract class AbstractListEditorState<ES extends ComponentState<ES>,
-    S extends AbstractListEditorState<ES, S>> extends ComponentState<S> {}
-
-abstract class ComponentState<S extends ComponentState<S>> {}
-
-abstract class EntityState<ES extends EntityState<ES>>
-    extends ComponentState<ES> {}
-
-abstract class MutableEntityState<S extends MutableEntityState<S>>
-    extends EntityState<S> implements ComponentState<S> {}
diff --git a/tests/language_2/regress/regress25609_lib1.dart b/tests/language_2/regress/regress25609_lib1.dart
deleted file mode 100644
index ae8cbfc4b31..00000000000
--- a/tests/language_2/regress/regress25609_lib1.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library regress_25609_lib1;
-
-import 'regress25609_lib2.dart';
-
-typedef Bar Foo(int y);
diff --git a/tests/language_2/regress/regress25609_lib2.dart b/tests/language_2/regress/regress25609_lib2.dart
deleted file mode 100644
index bfbb2f972e9..00000000000
--- a/tests/language_2/regress/regress25609_lib2.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library regress_25609_lib2;
-
-typedef void Bar(double x);
diff --git a/tests/language_2/regress/regress25609_test.dart b/tests/language_2/regress/regress25609_test.dart
deleted file mode 100644
index 18884dfc0f4..00000000000
--- a/tests/language_2/regress/regress25609_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'regress25609_lib1.dart';
-
-Foo baz() => null;
-
-main() {
-  baz();
-}
diff --git a/tests/language_2/regress/regress25620_test.dart b/tests/language_2/regress/regress25620_test.dart
deleted file mode 100644
index bde71a25d86..00000000000
--- a/tests/language_2/regress/regress25620_test.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-
-typedef Future<T> SyncedExecutionFn<T>(Future<T> fn());
-main() {}
diff --git a/tests/language_2/regress/regress25935_test.dart b/tests/language_2/regress/regress25935_test.dart
deleted file mode 100644
index de84161a0ae..00000000000
--- a/tests/language_2/regress/regress25935_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  AddIssueSourceMember2 m = new AddIssueSourceMember2();
-}
-
-abstract class RepoListEditorState2<M extends RepoListMember2<M>,
-        S extends RepoListEditorState2<M, S>>
-    extends AbstractListEditorState2<M, S> {}
-
-abstract class AbstractListEditorState2<
-    M extends AbstractListMember2<Object, M>,
-    S extends AbstractListEditorState2<M, S>> extends ComponentState2<S> {}
-
-class AddIssueSourceMember2 extends RepoListMember2<AddIssueSourceMember2> {}
-
-class RepoListMember2<M extends RepoListMember2<M>>
-    extends AbstractListMember2<Object, M> {}
-
-abstract class AbstractListMember2<E, M extends AbstractListMember2<E, M>>
-    extends ComponentState2<M> {}
-
-abstract class ComponentState2<S extends ComponentState2<S>> {}
diff --git a/tests/language_2/regress/regress26133_test.dart b/tests/language_2/regress/regress26133_test.dart
deleted file mode 100644
index cc89b4e6949..00000000000
--- a/tests/language_2/regress/regress26133_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-var x = 'a';
-
-Future<int> foo() async {
-  return x;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] A value of type 'Future<String>' can't be assigned to a variable of type 'FutureOr<int>'.
-}
-
-main() {
-  foo();
-}
diff --git a/tests/language_2/regress/regress26175_test.dart b/tests/language_2/regress/regress26175_test.dart
deleted file mode 100644
index 8e2dd0884b9..00000000000
--- a/tests/language_2/regress/regress26175_test.dart
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-// Test that local variable reads and writes are sequenced correctly with
-// respect to reads and writes in an awaited Future.  See issue 26175.
-
-// Reads are sequenced correctly with respect to writes in a Future.
-Future test1() async {
-  var x = 'a';
-  f() async => x = 'b';
-  Expect.equals('abb', '${x}${await f()}${x}');
-}
-
-// Writes are sequenced correctly with respect to writes in a Future.
-Future test2(ignore) async {
-  var x;
-  f() async => x = 'b';
-  Expect.equals('abb', '${x = 'a'}${await f()}${x}');
-}
-
-// Writes are sequenced correctly with respect to reads in a Future.
-Future test3(ignore) async {
-  var x = 'a';
-  f() async => x;
-  Expect.equals('bbb', '${x = 'b'}${await f()}${x}');
-}
-
-// Repeat the same tests for static variables.
-var cell = 'a';
-
-asyncReadCell() async => cell;
-asyncWriteCell(value) async => cell = value;
-
-Future test4(ignore) async {
-  // This test assumes that it can read the initial value of cell.
-  Expect.equals('abb', '${cell}${await asyncWriteCell('b')}${cell}');
-}
-
-Future test5(ignore) async {
-  Expect.equals('abb', '${cell = 'a'}${await asyncWriteCell('b')}${cell}');
-}
-
-Future test6(ignore) async {
-  Expect.equals('bbb', '${cell = 'b'}${await asyncReadCell()}${cell}');
-}
-
-// Test that throwing is sequenced correctly with respect to other effects.
-Future test7(ignore) async {
-  cell = 'a';
-  try {
-    Expect.equals(
-        'unreachable', '${throw 0}${await asyncWriteCell('b')}${cell}');
-  } catch (_) {
-    Expect.equals('a', cell);
-  }
-}
-
-main() {
-  asyncStart();
-  test1()
-      .then(test2)
-      .then(test3)
-      .then(test4)
-      .then(test5)
-      .then(test6)
-      .then(test7)
-      .then((_) => asyncEnd());
-}
diff --git a/tests/language_2/regress/regress26230_test.dart b/tests/language_2/regress/regress26230_test.dart
deleted file mode 100644
index 31b645d9945..00000000000
--- a/tests/language_2/regress/regress26230_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class _RenderTabBar extends RenderBox
-    with
-        ContainerRenderObjectMixin<RenderBox, _TabBarParentData>,
-        RenderBoxContainerDefaultsMixin<RenderBox, _TabBarParentData> {}
-
-class RenderObject {}
-
-class RenderSector extends RenderObject {}
-
-class RenderBox extends RenderObject {}
-
-class ParentData {}
-
-class BoxParentData extends ParentData {}
-
-class SectorParentData extends ParentData {}
-
-class ContainerParentDataMixin<ChildType extends RenderObject> {}
-
-class ContainerRenderObjectMixin<ChildType extends RenderObject,
-    ParentDataType extends ContainerParentDataMixin<ChildType>> {}
-
-class SectorChildListParentData extends SectorParentData
-    with ContainerParentDataMixin<RenderSector> {}
-
-class RenderDecoratedSector extends RenderSector {}
-
-class RenderSectorWithChildren extends RenderDecoratedSector
-    with ContainerRenderObjectMixin<RenderSector, SectorChildListParentData> {}
-
-class ContainerBoxParentDataMixin<ChildType extends RenderObject>
-    extends BoxParentData with ContainerParentDataMixin<ChildType> {}
-
-class RenderBoxContainerDefaultsMixin<ChildType extends RenderBox,
-        ParentDataType extends ContainerBoxParentDataMixin<ChildType>>
-    implements ContainerRenderObjectMixin<ChildType, ParentDataType> {}
-
-class FlexParentData extends ContainerBoxParentDataMixin<RenderBox> {}
-
-class _TabBarParentData extends ContainerBoxParentDataMixin<RenderBox> {}
-
-main() {
-  new _RenderTabBar();
-}
diff --git a/tests/language_2/regress/regress26453_test.dart b/tests/language_2/regress/regress26453_test.dart
deleted file mode 100644
index fc7b61266e3..00000000000
--- a/tests/language_2/regress/regress26453_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// The program crashed with segfault because we when we first compile foo
-// and bar we allocate all four variables (a, b, c and d) to the context.
-// When we compile foo the second time (with optimizations) we allocate
-// only c and d to the context. This happened because parser folds away
-// "${a}" and "${b}" as constant expressions when parsing bar on its own,
-// i.e. the expressions were not parsed again and thus a and b were not
-// marked as captured.
-// This caused a mismatch between a context that bar expects and that
-// the optimized version of foo produces.
-
-foo() {
-  const a = 1;
-  const b = 2;
-  var c = 3;
-  var d = 4;
-
-  bar() {
-    if ("${a}" != "1") throw "failed";
-    if ("${b}" != "2") throw "failed";
-    if ("${c}" != "3") throw "failed";
-    if ("${d}" != "4") throw "failed";
-  }
-
-  bar();
-}
-
-main() {
-  for (var i = 0; i < 50000; i++) foo();
-}
diff --git a/tests/language_2/regress/regress26530_test.dart b/tests/language_2/regress/regress26530_test.dart
deleted file mode 100644
index 881dc049966..00000000000
--- a/tests/language_2/regress/regress26530_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var trace = "";
-
-main() {
-  var x = 0;
-  try {
-    try {
-      throw x++; // 1
-    } on int catch (e) {
-      trace += "$e";
-      trace += "-$x";
-      x++; // 2
-      try {
-        x++; // 3
-        rethrow;
-      } finally {
-        trace += "-f";
-        x++; // 4
-      }
-    }
-  } catch (e) {
-    trace += "-c";
-    trace += "-$e";
-    trace += "-$x";
-  }
-  Expect.equals("0-1-f-c-0-4", trace);
-}
diff --git a/tests/language_2/regress/regress26543_1_test.dart b/tests/language_2/regress/regress26543_1_test.dart
deleted file mode 100644
index 1939171f5fc..00000000000
--- a/tests/language_2/regress/regress26543_1_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 26543
-
-class C {
-  var x;
-  C() : x = null ?? <int, int>{} {}
-}
-
-main() {
-  print(new C());
-}
diff --git a/tests/language_2/regress/regress26543_2_test.dart b/tests/language_2/regress/regress26543_2_test.dart
deleted file mode 100644
index ba569b201d0..00000000000
--- a/tests/language_2/regress/regress26543_2_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 26543
-
-class C {
-  var x, y;
-  C()
-      : x = null ?? <int, int>{},
-        y = 0 {}
-}
-
-main() {
-  print(new C());
-}
diff --git a/tests/language_2/regress/regress26543_3_test.dart b/tests/language_2/regress/regress26543_3_test.dart
deleted file mode 100644
index 5ed39d20f76..00000000000
--- a/tests/language_2/regress/regress26543_3_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 26543
-
-class C {
-  var x, y;
-  C()
-      : x = 0,
-        y = null ?? <int, int>{} {}
-}
-
-main() {
-  print(new C());
-}
diff --git a/tests/language_2/regress/regress26668_test.dart b/tests/language_2/regress/regress26668_test.dart
deleted file mode 100644
index 9b4b998d83f..00000000000
--- a/tests/language_2/regress/regress26668_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-main() async {
-  var myClass = new CustomClass<int>();
-  await myClass.processData();
-}
-
-class CustomClass<T> {
-  Future<T> processData() async {
-    return null;
-  }
-}
diff --git a/tests/language_2/regress/regress26855_runtime_test.dart b/tests/language_2/regress/regress26855_runtime_test.dart
deleted file mode 100644
index 9802c5c6742..00000000000
--- a/tests/language_2/regress/regress26855_runtime_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-
-
-
-
-
-
-class C {
-  C();
-  var x;
-
-
-}
-
-main() {
-
-
-
-  C c = new C();
-
-
-}
diff --git a/tests/language_2/regress/regress26855_test.dart b/tests/language_2/regress/regress26855_test.dart
deleted file mode 100644
index c34f2640e18..00000000000
--- a/tests/language_2/regress/regress26855_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-void f0(this.x) {}
-//      ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.FIELD_INITIALIZER_OUTSIDE_CONSTRUCTOR
-// [cfe] Field formal parameters can only be used in a constructor.
-
-void f1(int g(this.x)) {}
-//            ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.FIELD_INITIALIZER_OUTSIDE_CONSTRUCTOR
-// [cfe] Field formal parameters can only be used in a constructor.
-
-void f2(int g(int this.x)) {}
-//            ^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.FIELD_INITIALIZER_OUTSIDE_CONSTRUCTOR
-//                ^
-// [cfe] Field formal parameters can only be used in a constructor.
-
-class C {
-  C();
-  var x;
-  void f3(int g(this.x)) {}
-  //            ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.FIELD_INITIALIZER_OUTSIDE_CONSTRUCTOR
-  // [cfe] Field formal parameters can only be used in a constructor.
-  C.f4(int g(this.x));
-  //         ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.FIELD_INITIALIZER_OUTSIDE_CONSTRUCTOR
-  // [cfe] Field formal parameters can only be used in a constructor.
-}
-
-main() {
-  f0(null);
-  f1(null);
-  f2(null);
-  C c = new C();
-  c.f3(null);
-  new C.f4(null);
-}
diff --git a/tests/language_2/regress/regress26948_test.dart b/tests/language_2/regress/regress26948_test.dart
deleted file mode 100644
index 7dbd0db31c6..00000000000
--- a/tests/language_2/regress/regress26948_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-import 'dart:async';
-import "package:expect/expect.dart";
-
-void check(Function f) {
-  Expect.isTrue(f());
-}
-
-Future doSync() async {
-  try {
-    await 123;
-  } finally {
-    var next = 5.0;
-    check(() => next == 5.0);
-  }
-}
-
-main() async {
-  for (int i = 0; i < 20; i++) {
-    await doSync();
-  }
-}
diff --git a/tests/language_2/regress/regress27164_test.dart b/tests/language_2/regress/regress27164_test.dart
deleted file mode 100644
index 7b6766bd79c..00000000000
--- a/tests/language_2/regress/regress27164_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 27164.
-
-import 'package:expect/expect.dart';
-
-String simpleEcho(String arg) => arg;
-
-class Echo {
-  final echo;
-  // Check that the expression simpleEcho is a compile-time constant.
-  const Echo() : echo = simpleEcho;
-}
-
-void main() {
-  Expect.equals("hello", const Echo().echo("hello"));
-}
diff --git a/tests/language_2/regress/regress27572_test.dart b/tests/language_2/regress/regress27572_test.dart
deleted file mode 100644
index 9f8b637c020..00000000000
--- a/tests/language_2/regress/regress27572_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test has been modified and doesn't test http://dartbug.com/275272 anymore.
-// Static unresolved calls are not allowed anymore.
-
-import "package:expect/expect.dart";
-
-import 'dart:collection' as col;
-
-main() {
-  col.foobar(1234567);
-  //  ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_FUNCTION
-  // [cfe] Method not found: 'foobar'.
-}
diff --git a/tests/language_2/regress/regress27617_runtime_test.dart b/tests/language_2/regress/regress27617_runtime_test.dart
deleted file mode 100644
index 3a1dca64b78..00000000000
--- a/tests/language_2/regress/regress27617_runtime_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Foo {
-  final String greeting;
-  Foo._(this.greeting) {}
-
-  // Const constructor must not redirect to non-const constructor.
-
-}
-
-main() {
-
-}
diff --git a/tests/language_2/regress/regress27617_test.dart b/tests/language_2/regress/regress27617_test.dart
deleted file mode 100644
index 1645a7cbfd6..00000000000
--- a/tests/language_2/regress/regress27617_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Foo {
-  final String greeting;
-  Foo._(this.greeting) {}
-
-  // Const constructor must not redirect to non-const constructor.
-  const Foo.hi() : this._('hi');
-  //                    ^
-  // [analyzer] COMPILE_TIME_ERROR.REDIRECT_TO_NON_CONST_CONSTRUCTOR
-  // [cfe] A constant constructor can't call a non-constant constructor.
-}
-
-main() {
-  const h = const Foo.hi();
-}
diff --git a/tests/language_2/regress/regress27659_test.dart b/tests/language_2/regress/regress27659_test.dart
deleted file mode 100644
index 06b5ac37b6f..00000000000
--- a/tests/language_2/regress/regress27659_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-const String lineLength = '120';
-
-foo({lineLength: lineLength}) {
-  print(lineLength);
-}
-
-bar({lineLength: lineLength}) async {
-  print(lineLength);
-}
-
-baz([lineLength = lineLength]) {
-  print(lineLength);
-}
-
-qux([lineLength = lineLength]) async {
-  print(lineLength);
-}
-
-main() {
-  foo();
-  bar();
-  baz();
-  qux();
-}
diff --git a/tests/language_2/regress/regress27700_test.dart b/tests/language_2/regress/regress27700_test.dart
deleted file mode 100644
index d21e699fb05..00000000000
--- a/tests/language_2/regress/regress27700_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 27700.
-
-main() {
-  var x = new List.filled(0, null);
-  var z = "$x";
-}
diff --git a/tests/language_2/regress/regress27957_lib1.dart b/tests/language_2/regress/regress27957_lib1.dart
deleted file mode 100644
index e8a16e8de05..00000000000
--- a/tests/language_2/regress/regress27957_lib1.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library regress_27957_lib1;
-
-class Superclass {
-  int m() => 1;
-}
diff --git a/tests/language_2/regress/regress27957_lib2.dart b/tests/language_2/regress/regress27957_lib2.dart
deleted file mode 100644
index babe611831b..00000000000
--- a/tests/language_2/regress/regress27957_lib2.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library regress_27957_lib2;
-
-class Superclass {
-  int m() => 2;
-}
diff --git a/tests/language_2/regress/regress27957_test.dart b/tests/language_2/regress/regress27957_test.dart
deleted file mode 100644
index fa3fa743a98..00000000000
--- a/tests/language_2/regress/regress27957_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'regress27957_lib1.dart' as s1;
-import 'regress27957_lib2.dart' as s2;
-
-class Mixin {}
-
-class C1 = s1.Superclass with Mixin;
-class C2 = s2.Superclass with Mixin;
-
-main() {
-  var c1 = new C1(), c2 = new C2();
-  Expect.equals(1, c1.m());
-  Expect.equals(2, c2.m());
-}
diff --git a/tests/language_2/regress/regress28217_test.dart b/tests/language_2/regress/regress28217_test.dart
deleted file mode 100644
index 06fc8da727d..00000000000
--- a/tests/language_2/regress/regress28217_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test non-existing redirecting constructor and
-// redirecting to a factory constructor.
-
-class B {
-  B() : this.a(); //   //# none: compile-time error
-  factory B.a() {} //  //# 01: compile-time error
-  B.a(); //            //# 02: ok
-}
-
-main() => new B();
diff --git a/tests/language_2/regress/regress28268_test.dart b/tests/language_2/regress/regress28268_test.dart
deleted file mode 100644
index 591fa94081c..00000000000
--- a/tests/language_2/regress/regress28268_test.dart
+++ /dev/null
@@ -1,161 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class E {
-  static final String a = "get a";
-  static void set a(String o) {
-    printx("set a: $o");
-  }
-
-  static const String b = "get b";
-  static void set b(String o) {
-    printx("set b: $o");
-  }
-
-  static void set c(String o) {
-    printx("set c: $o");
-  }
-
-  final String d = "get d";
-  void set d(String o) {
-    printx("set d: $o");
-  }
-
-  final String e = "get e";
-
-  static const String f = "get f";
-
-  set g(v) {
-    printx("set g: $v");
-  }
-
-  set h(v) {
-    printx("set h: $v");
-  }
-
-  foo() {
-    printx(e);
-    e = "set e"; // //# 01: compile-time error
-    printx(e);
-
-    printx(f);
-    f = "set f"; // //# 02: compile-time error
-    printx(f);
-
-    printx(g); //   //# 03: compile-time error
-    g = "set g";
-    printx(g); //   //# 04: compile-time error
-
-    printx(h); //   //# 05: compile-time error
-    h = "set h";
-    printx(h); //   //# 06: compile-time error
-  }
-}
-
-set e(v) {
-  printx("Setting top-level e: $v");
-}
-
-set f(v) {
-  printx("Setting top-level f: $v");
-}
-
-final String g = "get g";
-
-const String h = "get h";
-
-const x = 42;
-final y = 42;
-
-set x(v) {
-  printx("Setting top-level x: $v");
-}
-
-set y(v) {
-  printx("Setting top-level y: $v");
-}
-
-main() {
-  printx(E.a);
-  E.a = "set E";
-  printx(E.a);
-
-  printx(E.b);
-  E.b = "set E";
-  printx(E.b);
-
-  E.c = "set E";
-
-  E eInstance = new E();
-  printx(eInstance.d);
-  eInstance.d = "set eInstance";
-  printx(eInstance.d);
-  eInstance.foo();
-
-  printx(e); //     //# 07: compile-time error
-  e = "set e";
-  printx(e); //     //# 08: compile-time error
-
-  printx(f); //     //# 09: compile-time error
-  f = "set f";
-  printx(f); //     //# 10: compile-time error
-
-  printx(g);
-  g = "set g"; //   //# 11: compile-time error
-  printx(g);
-
-  printx(h);
-  h = "set h"; //   //# 12: compile-time error
-  printx(h);
-
-  printx(x);
-  x = "Hello world!";
-  printx(x);
-
-  printx(y);
-  y = "Hello world!";
-  printx(y);
-
-  Expect.listEquals(expected, actual);
-}
-
-List<String> actual = <String>[];
-void printx(Object x) {
-  actual.add(x.toString());
-}
-
-List<String> expected = <String>[
-  "get a",
-  "set a: set E",
-  "get a",
-  "get b",
-  "set b: set E",
-  "get b",
-  "set c: set E",
-  "get d",
-  "set d: set eInstance",
-  "get d",
-  "get e",
-  "get e",
-  "get f",
-  "get f",
-  "set g: set g",
-  "set h: set h",
-  "Setting top-level e: set e",
-  "Setting top-level f: set f",
-  "get g",
-  "get g",
-  "get h",
-  "get h",
-  "42",
-  "Setting top-level x: Hello world!",
-  "42",
-  "42",
-  "Setting top-level y: Hello world!",
-  "42",
-];
diff --git a/tests/language_2/regress/regress28278_lib.dart b/tests/language_2/regress/regress28278_lib.dart
deleted file mode 100644
index 510109a6b72..00000000000
--- a/tests/language_2/regress/regress28278_lib.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-foo(x) => x + "Hello";
diff --git a/tests/language_2/regress/regress28278_test.dart b/tests/language_2/regress/regress28278_test.dart
deleted file mode 100644
index 0f2004fe458..00000000000
--- a/tests/language_2/regress/regress28278_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--load-deferred-eagerly
-// VMOptions=
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import "regress28278_lib.dart" deferred as def;
-
-var result = "";
-
-class D {
-  m() async {
-    await def.loadLibrary();
-    result = def.foo(result += "Here");
-  }
-}
-
-main() async {
-  var d = new D();
-  await d.m();
-  await d.m();
-  Expect.equals("HereHelloHereHello", result);
-}
diff --git a/tests/language_2/regress/regress28341_test.dart b/tests/language_2/regress/regress28341_test.dart
deleted file mode 100644
index c15df1cce38..00000000000
--- a/tests/language_2/regress/regress28341_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-enum E { A }
-
-main() {
-  Expect.isTrue(E.values == const <E>[E.A]);
-  Expect.isTrue(E.values == const [E.A]);
-}
diff --git a/tests/language_2/regress/regress28498_test.dart b/tests/language_2/regress/regress28498_test.dart
deleted file mode 100644
index 9251f025e8e..00000000000
--- a/tests/language_2/regress/regress28498_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// The Kernel async transformer should not skip assert statements.
-
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-g() async => 21;
-f() async => 42;
-
-test() async {
-  assert(await g() == await f());
-}
-
-main() {
-  bool ok = true;
-  assert(!(ok = false));
-  // !ok iff asserts are enabled.
-
-  asyncStart();
-  test().then((_) => Expect.isTrue(ok), onError: (error) {
-    // !ok implies error is AssertionError.
-    Expect.isTrue(ok || error is AssertionError);
-  }).whenComplete(asyncEnd);
-}
diff --git a/tests/language_2/regress/regress28610_test.dart b/tests/language_2/regress/regress28610_test.dart
deleted file mode 100644
index b8b3755912d..00000000000
--- a/tests/language_2/regress/regress28610_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  final int Function = 0;
-}
-
-main() {
-  final int Function = 0;
-  Expect.equals(Function, new A().Function);
-}
diff --git a/tests/language_2/regress/regress29025_test.dart b/tests/language_2/regress/regress29025_test.dart
deleted file mode 100644
index f9a6b8c86ba..00000000000
--- a/tests/language_2/regress/regress29025_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-abstract class F<T> {
-  T foo(T t);
-}
-
-class B<T extends F<T>> {}
-
-class C<T extends F<C<T>>> {}
-
-class D extends B<D> implements F<D> {
-  D foo(D x) => x;
-}
-
-class E extends C<E> implements F<C<E>> {
-  C<E> foo(C<E> x) => x;
-}
-
-main() {
-  D fd = D();
-  var d = fd.foo(fd);
-  print(d);
-  E fe = E();
-  var e = fe.foo(fe);
-  print(e);
-}
diff --git a/tests/language_2/regress/regress29243_test.dart b/tests/language_2/regress/regress29243_test.dart
deleted file mode 100644
index 108ce422080..00000000000
--- a/tests/language_2/regress/regress29243_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-int Function() x = () => 42;
-int Function(int Function()) y = (int Function() x) => x();
-List<int Function()> l = <int Function()>[()=>42, x];
-main() {
-  Expect.equals(42, y(l[1]));
-}
diff --git a/tests/language_2/regress/regress29349_test.dart b/tests/language_2/regress/regress29349_test.dart
deleted file mode 100644
index d91e6befc07..00000000000
--- a/tests/language_2/regress/regress29349_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-List<T> get<T>(T item) => <T>[item];
-List<T> get2<T>(T item) => <T>[item];
-
-void main() {
- print(get(1));
- print(get2(1));
-}
diff --git a/tests/language_2/regress/regress29357_test.dart b/tests/language_2/regress/regress29357_test.dart
deleted file mode 100644
index 34efe1543fd..00000000000
--- a/tests/language_2/regress/regress29357_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-abstract class A<T extends A<T>> {}
-
-abstract class B<T extends A<T>> {}
-
-class C<U> extends B<D<U>> {}
-
-class D<U> extends A<D<U>> {}
-
-main() {
-  new D();
-  new C();
-  new D<C>();
-  new C<D>();
-}
diff --git a/tests/language_2/regress/regress29784_runtime_test.dart b/tests/language_2/regress/regress29784_runtime_test.dart
deleted file mode 100644
index aa53e1657b6..00000000000
--- a/tests/language_2/regress/regress29784_runtime_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// VMOptions=--enable_asserts
-
-// Verify that only static members can be accessed in initializers, and this
-// applies to asserts in initializers.
-
-import 'package:expect/expect.dart';
-
-class A {
-
-
-  var a, b;
-}
-
-main() {
-
-
-}
diff --git a/tests/language_2/regress/regress29784_test.dart b/tests/language_2/regress/regress29784_test.dart
deleted file mode 100644
index 4bef070fedf..00000000000
--- a/tests/language_2/regress/regress29784_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--enable_asserts
-
-// Verify that only static members can be accessed in initializers, and this
-// applies to asserts in initializers.
-
-import 'package:expect/expect.dart';
-
-class A {
-  A.ok() : b = a;
-  //           ^
-  // [analyzer] COMPILE_TIME_ERROR.IMPLICIT_THIS_REFERENCE_IN_INITIALIZER
-  // [cfe] Can't access 'this' in a field initializer to read 'a'.
-  A.ko() : assert(a == null);
-  //              ^
-  // [analyzer] COMPILE_TIME_ERROR.IMPLICIT_THIS_REFERENCE_IN_INITIALIZER
-  // [cfe] Can't access 'this' in a field initializer to read 'a'.
-  var a, b;
-}
-
-main() {
-  new A.ok();
-  new A.ko();
-}
diff --git a/tests/language_2/regress/regress29949_test.dart b/tests/language_2/regress/regress29949_test.dart
deleted file mode 100644
index b3d00ca5d57..00000000000
--- a/tests/language_2/regress/regress29949_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-abstract class S {}
-
-abstract class M<T> {}
-
-abstract class N<T> {}
-
-class C<T> extends S with M<C<T>>, N<C<T>> {}
-
-main() {
-  new C<int>();
-}
diff --git a/tests/language_2/regress/regress30092_test.dart b/tests/language_2/regress/regress30092_test.dart
deleted file mode 100644
index 1196edbe53e..00000000000
--- a/tests/language_2/regress/regress30092_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class BigInt {}
-
-main() {
-  void foo(void Function(BigInt, BigInt) f) {
-    f(new BigInt(), new BigInt());
-  }
-
-  foo((x, y) {});
-}
diff --git a/tests/language_2/regress/regress30121_test.dart b/tests/language_2/regress/regress30121_test.dart
deleted file mode 100644
index 835ad83fda3..00000000000
--- a/tests/language_2/regress/regress30121_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Mock {
-  noSuchMethod(i) {}
-}
-
-class Foo {
-  int call() => 1;
-}
-
-class MockFoo extends Mock implements Foo {}
-
-main() {
-  var foo = new MockFoo();
-  foo();
-}
diff --git a/tests/language_2/regress/regress30339_test.dart b/tests/language_2/regress/regress30339_test.dart
deleted file mode 100644
index a7ea7db936a..00000000000
--- a/tests/language_2/regress/regress30339_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import 'package:expect/expect.dart';
-
-isCheckedMode() {
-  try {
-    dynamic i = 1;
-    String s = i;
-    return false;
-  } on TypeError {
-    return true;
-  }
-}
-
-dynamic x = 'a';
-
-Future<int> foo() async {
-  return x;
-}
-
-Future<int> bar() async => x;
-
-main() {
-  foo().then((_) {
-    Expect.isFalse(isCheckedMode());
-  }, onError: (e) {
-    Expect.isTrue(isCheckedMode() && (e is TypeError));
-  });
-  bar().then((_) {
-    Expect.isFalse(isCheckedMode());
-  }, onError: (e) {
-    Expect.isTrue(isCheckedMode() && (e is TypeError));
-  });
-}
diff --git a/tests/language_2/regress/regress30516_test.dart b/tests/language_2/regress/regress30516_test.dart
deleted file mode 100644
index 424fdd4d417..00000000000
--- a/tests/language_2/regress/regress30516_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-typedef void RecognizerCallback<T>();
-typedef void GestureTapCancelCallback();
-GestureTapCancelCallback onTapCancel;
-T invokeCallback<T>(String name, RecognizerCallback<T> callback,
-    {String debugReport()}) {}
-main() {
-  invokeCallback<void>('spontaneous onTapCancel', onTapCancel);
-}
diff --git a/tests/language_2/regress/regress30669_test.dart b/tests/language_2/regress/regress30669_test.dart
deleted file mode 100644
index 24f1ce70d1f..00000000000
--- a/tests/language_2/regress/regress30669_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class M {
-  int compareTo(int x) => x.isEven ? 1 : -1;
-}
-
-// All of these should work the same for the purposes of calling through
-// the Comparable interface.
-
-class C extends M implements Comparable<int> {}
-
-class D extends Object with M implements Comparable<int> {}
-
-class E = Object with M implements Comparable<int>;
-
-/// Regression test for https://github.com/dart-lang/sdk/issues/30669, DDC was
-/// not attaching the "extension member" symbol to call `Comparable.compareTo` in
-/// some cases.
-main() {
-  testComparable(new C());
-  testComparable(new D());
-  testComparable(new E());
-}
-
-testComparable(Comparable<Object> c) {
-  Expect.equals(c.compareTo(42), 1, '$c');
-  Expect.equals(c.compareTo(41), -1, '$c');
-  Expect.throws(() => c.compareTo('42'));
-}
diff --git a/tests/language_2/regress/regress30927_test.dart b/tests/language_2/regress/regress30927_test.dart
deleted file mode 100644
index 5cd4490e2d9..00000000000
--- a/tests/language_2/regress/regress30927_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class B {
-  m(int v) => v + 42;
-}
-
-abstract class C extends B {
-  m(Object v);
-}
-
-class D extends C {
-  m(Object v) => 'hi $v!';
-}
-
-/// Regression test for https://github.com/dart-lang/sdk/issues/30927, DDC used
-/// to use the incorrect signature for D.m.
-main() {
-  dynamic d = new D();
-  // Make sure we dispatch using the type signature for D.m, not B.m
-  Expect.equals(d.m('world'), 'hi world!');
-}
diff --git a/tests/language_2/regress/regress31057_test.dart b/tests/language_2/regress/regress31057_test.dart
deleted file mode 100644
index b205976a38d..00000000000
--- a/tests/language_2/regress/regress31057_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--reify-generic-functions
-
-import 'package:expect/expect.dart';
-
-class Foo<T> {
-  a<A>() {
-    b<B>() {
-      c<C>() => '$T $A $B $C';
-      return c;
-    }
-
-    return b;
-  }
-}
-
-main() {
-  Expect.equals('bool int double String',
-      ((new Foo<bool>().a<int>())<double>())<String>());
-}
diff --git a/tests/language_2/regress/regress31066_test.dart b/tests/language_2/regress/regress31066_test.dart
deleted file mode 100644
index 312fd0bdeac..00000000000
--- a/tests/language_2/regress/regress31066_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-typedef Bar = int Function(int);
-
-int defaultBar(int value) => value + 1;
-
-class Foo {
-  final Bar bar;
-
-  const Foo._(Bar bar) : bar = bar ?? defaultBar;
-
-  const Foo.baz({Bar bar}) : this._(bar);
-}
-
-void main() {
-  final foo = const Foo.baz();
-  Expect.equals(2, foo.bar(1));
-}
diff --git a/tests/language_2/regress/regress31106_test.dart b/tests/language_2/regress/regress31106_test.dart
deleted file mode 100644
index 3e431f73806..00000000000
--- a/tests/language_2/regress/regress31106_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-void main() {
-  final schema = const UserSchema();
-  Expect.equals('users', schema.name);
-  final user = const User(first: 'firstname');
-  var map = schema._decode(user);
-  Expect.equals('firstname', map['first']);
-}
-
-class User {
-  final String first;
-
-  const User({
-    this.first,
-  });
-}
-
-class Schema<T> {
-  final String name;
-  final Map<String, Object> Function(T) _decode;
-
-  const Schema({
-    this.name,
-    Map<String, Object> Function(T) decode,
-  })
-      : _decode = decode;
-}
-
-class UserSchema extends Schema<User> {
-  static Map<String, Object> _decode$(User user) {
-    return {
-      'first': user.first,
-    };
-  }
-
-  const UserSchema() : super(name: 'users', decode: _decode$);
-}
diff --git a/tests/language_2/regress/regress31279_test.dart b/tests/language_2/regress/regress31279_test.dart
deleted file mode 100644
index 398a04822d7..00000000000
--- a/tests/language_2/regress/regress31279_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-abstract class Base {
-  void update(void Function(Iterable) updates);
-  void update2(void updates(Iterable iterable));
-}
-
-class CovariantParsingIssue implements Base {
-  void update(covariant void Function(List) updates) {}
-  void update2(covariant void updates(List list)) {}
-}
-
-void VoidParsingIssue() {
-  List<void Function(int)> functions = [(int i) => print(i + 1)];
-  functions[0](42);
-}
-
-void main() {
-  new CovariantParsingIssue();
-  VoidParsingIssue();
-}
diff --git a/tests/language_2/regress/regress31436_test.dart b/tests/language_2/regress/regress31436_test.dart
deleted file mode 100644
index f151b6cc7a8..00000000000
--- a/tests/language_2/regress/regress31436_test.dart
+++ /dev/null
@@ -1,69 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void block_test() {
-  List<Object> Function() g;
-  g = () {
-    return [3];
-  };
-  assert(g is List<Object> Function());
-  assert(g is! List<int> Function());
-  g().add("hello"); // No runtime error
-  List<int> l = [3];
-  g = () {
-    return l;
-  };
-  assert(g is List<Object> Function());
-  assert(g is List<int> Function());
-  Expect.throwsTypeError(() {
-    g().add("hello"); // runtime error
-  });
-  Object o = l;
-  g = () {
-    return o;
-  }; // No implicit downcast on the assignment, implicit downcast on the return
-  assert(g is List<Object> Function());
-  assert(g is! List<int> Function());
-  assert(g is Object Function());
-  g(); // No runtime error;
-  o = 3;
-  Expect.throwsTypeError(() {
-    g(); // Failed runtime cast on the return type of f
-  });
-}
-
-void arrow_test() {
-  List<Object> Function() g;
-  g = () => [3];
-  assert(g is List<Object> Function());
-  assert(g is! List<int> Function());
-  g().add("hello"); // No runtime error
-  List<int> l = [3];
-  g = () => l;
-  assert(g is List<Object> Function());
-  assert(g is List<int> Function());
-  Expect.throwsTypeError(() {
-    g().add("hello"); // runtime error
-  });
-  Object o = l;
-  g = () =>
-      o; // No implicit downcast on the assignment, implicit downcast on the return
-  assert(g is List<Object> Function());
-  assert(g is! List<int> Function());
-  assert(g is Object Function());
-  g(); // No runtime error;
-  o = 3;
-  Expect.throwsTypeError(() {
-    g(); // Failed runtime cast on the return type of f
-  });
-}
-
-main() {
-  block_test();
-  arrow_test();
-}
diff --git a/tests/language_2/regress/regress31591_test.dart b/tests/language_2/regress/regress31591_test.dart
deleted file mode 100644
index 04ad7f6a800..00000000000
--- a/tests/language_2/regress/regress31591_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--optimization-counter-threshold=90
-
-import 'package:expect/expect.dart';
-
-typedef FunObjObj = Object Function<T>(Object, {Object y});
-
-Object funTypObj<T>(T x, {Object y}) => y;
-
-main() {
-  for (int i = 0; i < 100; i++) {
-    Expect.throwsTypeError(() {
-      dynamic y = funTypObj;
-      final FunObjObj x2 = y;
-    });
-  }
-}
diff --git a/tests/language_2/regress/regress31596_covariant_declaration_test.dart b/tests/language_2/regress/regress31596_covariant_declaration_test.dart
deleted file mode 100644
index 677efe6911a..00000000000
--- a/tests/language_2/regress/regress31596_covariant_declaration_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test the treatment of a method whose signature has a covariant parameter
-// in the interface of a class `C`, when the implementation of that method
-// is inherited and its parameter is not covariant.
-
-class I0 {}
-
-class A {}
-
-class B extends A implements I0 {}
-
-class C {
-  void f(B x) {}
-}
-
-abstract class I {
-  void f(covariant A x);
-}
-
-// As of dart-lang/language#1833 this is not a compile-time error.
-class D extends C implements I {}
-
-main() {}
diff --git a/tests/language_2/regress/regress31596_override_test.dart b/tests/language_2/regress/regress31596_override_test.dart
deleted file mode 100644
index 57f9e7be935..00000000000
--- a/tests/language_2/regress/regress31596_override_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class I0 {}
-
-class A {}
-
-class B extends A implements I0 {}
-
-class B2 extends A {}
-
-class C {
-  void f(B x) {}
-}
-
-abstract class I1<X> {
-  void f(X x);
-}
-
-// This class contains a forwarding stub for f to allow it to satisfy the
-// interface I<B>, while still ensuring that the x argument is type checked
-// before C.f is executed.
-class D extends C implements I1<B> {}
-
-class Test extends D {
-  void f(A x) {} //# 01: ok
-  void f(covariant A x) {} //# 02: ok
-
-  void f(B x) {} //# 03: ok
-  void f(covariant B x) {} //# 04: ok
-
-  void f(I0 x) {} //# 05: ok
-  void f(covariant I0 x) {} //# 06: ok
-
-  void f(B2 x) {} //# 07: compile-time error
-  void f(covariant B2 x) {} //# 08: compile-time error
-}
-
-main() {
-  // Make sure that Test is compiled.
-  new Test();
-}
diff --git a/tests/language_2/regress/regress31596_runtime_test.dart b/tests/language_2/regress/regress31596_runtime_test.dart
deleted file mode 100644
index c5d6223070e..00000000000
--- a/tests/language_2/regress/regress31596_runtime_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-class B2 extends A {}
-
-class C {
-  void f(B x, B y) {}
-}
-
-abstract class I<X> {
-  void f(X x, B y);
-}
-
-// This class contains a forwarding stub for f to allow it to satisfy the
-// interface I<B>, while still ensuring that the x argument is type checked
-// before C.f is executed.
-//
-// For purposes of static type checking, the interface of the class D is
-// considered to contain a method f with signature (B, B) -> void. For purposes
-// of runtime behavior, a tearoff of D.f is considered to have the reified
-// runtime type (Object, B) -> void.
-class D extends C implements I<B> {}
-
-main() {
-  var d = new D();
-  I<A> i = d;
-  A a = new A();
-  B b = new B();
-  B2 b2 = null;
-
-  i.f(b2, b); // Ok since B2 assignable to A
-  // TODO: Downcast will be a compile-time error with NNBD. Consider using
-  // `d.f as dynamic`.
-  void Function(Object, B) g = d.f; // Ok; D.f reified as (Object, B) -> void
-  Expect.throwsTypeError(() {
-    // TODO: Downcast will be a compile-time error with NNBD.
-    d.f(a, b);
-  });
-  Expect.throwsTypeError(() {
-    // TODO: Downcast will be a compile-time error with NNBD.
-    i.f(a, b);
-  });
-}
diff --git a/tests/language_2/regress/regress31596_super_runtime_1_test.dart b/tests/language_2/regress/regress31596_super_runtime_1_test.dart
deleted file mode 100644
index 70d96a5ee4c..00000000000
--- a/tests/language_2/regress/regress31596_super_runtime_1_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class I0 {}
-
-class A {}
-
-class B extends A implements I0 {}
-
-class B2 extends A {}
-
-class C {
-  void f(B x) {}
-}
-
-abstract class I<X> {
-  void f(X x);
-}
-
-// This class contains a forwarding stub for f to allow it to satisfy the
-// interface I<B>, while still ensuring that the x argument is type checked
-// before C.f is executed.
-//
-// Super calls in a derived class resolve directly to C.f, and are type checked
-// accordingly at compile time.
-class D extends C implements I<B> {}
-
-class E extends D {
-  void test() {
-    I0 i0 = null;
-    B2 b2 = null;
-
-    // ok since I0 is assignable to B
-    // TODO: Downcast from I0 to B will be a compile-time error with NNBD.
-    super.f(i0);
-
-    // not ok since B2 is not assignable to B
-
-
-    var superF = super.f; // Inferred static type: void Function(B)
-
-    // ok since I0 is assignable to B
-    // TODO: Downcast from I0 to B will be a compile-time error with NNBD.
-
-
-    // not ok since B2 is not assignable to B
-
-
-    // Should pass since superF's runtime type is void Function(Object)
-
-
-
-
-  }
-}
-
-main() {
-  new E().test();
-}
diff --git a/tests/language_2/regress/regress31596_super_runtime_2_test.dart b/tests/language_2/regress/regress31596_super_runtime_2_test.dart
deleted file mode 100644
index 1be51486ffb..00000000000
--- a/tests/language_2/regress/regress31596_super_runtime_2_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class I0 {}
-
-class A {}
-
-class B extends A implements I0 {}
-
-class B2 extends A {}
-
-class C {
-  void f(B x) {}
-}
-
-abstract class I<X> {
-  void f(X x);
-}
-
-// This class contains a forwarding stub for f to allow it to satisfy the
-// interface I<B>, while still ensuring that the x argument is type checked
-// before C.f is executed.
-//
-// Super calls in a derived class resolve directly to C.f, and are type checked
-// accordingly at compile time.
-class D extends C implements I<B> {}
-
-class E extends D {
-  void test() {
-    I0 i0 = null;
-    B2 b2 = null;
-
-    // ok since I0 is assignable to B
-    // TODO: Downcast from I0 to B will be a compile-time error with NNBD.
-
-
-    // not ok since B2 is not assignable to B
-
-
-    var superF = super.f; // Inferred static type: void Function(B)
-
-    // ok since I0 is assignable to B
-    // TODO: Downcast from I0 to B will be a compile-time error with NNBD.
-    superF(i0);
-
-    // not ok since B2 is not assignable to B
-
-
-    // Should pass since superF's runtime type is void Function(Object)
-
-
-
-
-  }
-}
-
-main() {
-  new E().test();
-}
diff --git a/tests/language_2/regress/regress31596_super_runtime_3_test.dart b/tests/language_2/regress/regress31596_super_runtime_3_test.dart
deleted file mode 100644
index d30aa103b7b..00000000000
--- a/tests/language_2/regress/regress31596_super_runtime_3_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class I0 {}
-
-class A {}
-
-class B extends A implements I0 {}
-
-class B2 extends A {}
-
-class C {
-  void f(B x) {}
-}
-
-abstract class I<X> {
-  void f(X x);
-}
-
-// This class contains a forwarding stub for f to allow it to satisfy the
-// interface I<B>, while still ensuring that the x argument is type checked
-// before C.f is executed.
-//
-// Super calls in a derived class resolve directly to C.f, and are type checked
-// accordingly at compile time.
-class D extends C implements I<B> {}
-
-class E extends D {
-  void test() {
-    I0 i0 = null;
-    B2 b2 = null;
-
-    // ok since I0 is assignable to B
-    // TODO: Downcast from I0 to B will be a compile-time error with NNBD.
-
-
-    // not ok since B2 is not assignable to B
-
-
-    var superF = super.f; // Inferred static type: void Function(B)
-
-    // ok since I0 is assignable to B
-    // TODO: Downcast from I0 to B will be a compile-time error with NNBD.
-
-
-    // not ok since B2 is not assignable to B
-
-
-    // Should pass since superF's runtime type is void Function(Object)
-    Expect.isTrue(superF is void Function(B));
-    Expect.isTrue(superF is void Function(I0));
-    Expect.isTrue(superF is void Function(A));
-    Expect.isTrue(superF is void Function(Object));
-  }
-}
-
-main() {
-  new E().test();
-}
diff --git a/tests/language_2/regress/regress31596_super_runtime_test.dart b/tests/language_2/regress/regress31596_super_runtime_test.dart
deleted file mode 100644
index f3d843432c6..00000000000
--- a/tests/language_2/regress/regress31596_super_runtime_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class I0 {}
-
-class A {}
-
-class B extends A implements I0 {}
-
-class B2 extends A {}
-
-class C {
-  void f(B x) {}
-}
-
-abstract class I<X> {
-  void f(X x);
-}
-
-// This class contains a forwarding stub for f to allow it to satisfy the
-// interface I<B>, while still ensuring that the x argument is type checked
-// before C.f is executed.
-//
-// Super calls in a derived class resolve directly to C.f, and are type checked
-// accordingly at compile time.
-class D extends C implements I<B> {}
-
-class E extends D {
-  void test() {
-    I0 i0 = null;
-    B2 b2 = null;
-
-    // ok since I0 is assignable to B
-    // TODO: Downcast from I0 to B will be a compile-time error with NNBD.
-
-
-    // not ok since B2 is not assignable to B
-
-
-    var superF = super.f; // Inferred static type: void Function(B)
-
-    // ok since I0 is assignable to B
-    // TODO: Downcast from I0 to B will be a compile-time error with NNBD.
-
-
-    // not ok since B2 is not assignable to B
-
-
-    // Should pass since superF's runtime type is void Function(Object)
-
-
-
-
-  }
-}
-
-main() {
-  new E().test();
-}
diff --git a/tests/language_2/regress/regress31596_super_test.dart b/tests/language_2/regress/regress31596_super_test.dart
deleted file mode 100644
index faa166856b5..00000000000
--- a/tests/language_2/regress/regress31596_super_test.dart
+++ /dev/null
@@ -1,70 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class I0 {}
-
-class A {}
-
-class B extends A implements I0 {}
-
-class B2 extends A {}
-
-class C {
-  void f(B x) {}
-}
-
-abstract class I<X> {
-  void f(X x);
-}
-
-// This class contains a forwarding stub for f to allow it to satisfy the
-// interface I<B>, while still ensuring that the x argument is type checked
-// before C.f is executed.
-//
-// Super calls in a derived class resolve directly to C.f, and are type checked
-// accordingly at compile time.
-class D extends C implements I<B> {}
-
-class E extends D {
-  void test() {
-    I0 i0 = null;
-    B2 b2 = null;
-
-    // ok since I0 is assignable to B
-    // TODO: Downcast from I0 to B will be a compile-time error with NNBD.
-    super.f(i0);
-
-    // not ok since B2 is not assignable to B
-    super.f(b2);
-    //      ^^
-    // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-    // [cfe] The argument type 'B2' can't be assigned to the parameter type 'B'.
-
-    var superF = super.f; // Inferred static type: void Function(B)
-
-    // ok since I0 is assignable to B
-    // TODO: Downcast from I0 to B will be a compile-time error with NNBD.
-    superF(i0);
-
-    // not ok since B2 is not assignable to B
-    superF(b2);
-    //     ^^
-    // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-    // [cfe] The argument type 'B2' can't be assigned to the parameter type 'B'.
-
-    // Should pass since superF's runtime type is void Function(Object)
-    Expect.isTrue(superF is void Function(B));
-    Expect.isTrue(superF is void Function(I0));
-    Expect.isTrue(superF is void Function(A));
-    Expect.isTrue(superF is void Function(Object));
-  }
-}
-
-main() {
-  new E().test();
-}
diff --git a/tests/language_2/regress/regress31596_tearoff_test.dart b/tests/language_2/regress/regress31596_tearoff_test.dart
deleted file mode 100644
index 7b3a9a58b97..00000000000
--- a/tests/language_2/regress/regress31596_tearoff_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-class C {
-  void f(B x) {}
-}
-
-abstract class I<X> {
-  void f(X x);
-}
-
-// This class contains a forwarding stub for f to allow it to satisfy the
-// interface I<B>, while still ensuring that the x argument is type checked
-// before C.f is executed.
-//
-// For purposes of static type checking, the interface of the class D is
-// considered to contain a method f with signature (B) -> void.  For purposes of
-// runtime behavior, a tearoff of D.f is considered to have the reified runtime
-// type (Object) -> void.
-class D extends C implements I<B> {}
-
-main() {
-  var d = new D();
-  A aNull = null;
-  A a = new A();
-
-  // Since the compile-time type of D.f is (B) -> void, it is assignable to (A)
-  // -> void.  Since the runtime type is (Object) -> void, the assignment is
-  // allowed at runtime as well.
-  // TODO: Implicit downcast from void Function(B) to void Function(A) will be a
-  // compile-time error with NNBD. Consider using `d.f as dynamic`.
-  void Function(A) g = d.f;
-
-  // However, the tear-off performs a runtime check of its argument, so it
-  // accepts a value of `null`, but it does not accept a value whose runtime
-  // type is A.
-  g(aNull);
-  Expect.throwsTypeError(() {
-    g(a);
-  });
-}
diff --git a/tests/language_2/regress/regress31596_test.dart b/tests/language_2/regress/regress31596_test.dart
deleted file mode 100644
index df94d093ed0..00000000000
--- a/tests/language_2/regress/regress31596_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-class B2 extends A {}
-
-class C {
-  void f(B x, B y) {}
-}
-
-abstract class I<X> {
-  void f(X x, B y);
-}
-
-// This class contains a forwarding stub for f to allow it to satisfy the
-// interface I<B>, while still ensuring that the x argument is type checked
-// before C.f is executed.
-//
-// For purposes of static type checking, the interface of the class D is
-// considered to contain a method f with signature (B, B) -> void. For purposes
-// of runtime behavior, a tearoff of D.f is considered to have the reified
-// runtime type (Object, B) -> void.
-class D extends C implements I<B> {}
-
-main() {
-  var d = new D();
-  I<A> i = d;
-  A a = new A();
-  B b = new B();
-  B2 b2 = null;
-  d.f(b2, b);
-  //  ^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] The argument type 'B2' can't be assigned to the parameter type 'B'.
-  i.f(b2, b); // Ok since B2 assignable to A
-  // TODO: Downcast will be a compile-time error with NNBD. Consider using
-  // `d.f as dynamic`.
-  void Function(Object, B) g = d.f; // Ok; D.f reified as (Object, B) -> void
-  Expect.throwsTypeError(() {
-    // TODO: Downcast will be a compile-time error with NNBD.
-    d.f(a, b);
-  });
-  Expect.throwsTypeError(() {
-    // TODO: Downcast will be a compile-time error with NNBD.
-    i.f(a, b);
-  });
-}
diff --git a/tests/language_2/regress/regress32012_test.dart b/tests/language_2/regress/regress32012_test.dart
deleted file mode 100644
index 1cc5cc264cd..00000000000
--- a/tests/language_2/regress/regress32012_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class C {
-  int x;
-
-  int bar() {
-    return 19;
-  }
-}
-
-main() {
-  B foo<A extends B, B extends C>(A a) {
-    int bar<Q>(B b) {
-      return 23 + b.bar();
-    }
-
-    a.x = bar(a);
-    return a;
-  }
-
-  var x = <A extends B, B>(A a) {
-    return a;
-  };
-
-  Expect.equals(x(foo(new C())).x, 42);
-}
diff --git a/tests/language_2/regress/regress32267_test.dart b/tests/language_2/regress/regress32267_test.dart
deleted file mode 100644
index 67f95ff4b8f..00000000000
--- a/tests/language_2/regress/regress32267_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// There was a bug in the Kernel mixin transformation: it copied factory
-// constructors from the mixin into the mixin application class.  This could be
-// observed as an unbound type parameter which led to a crash.
-
-class State<T> {}
-
-class A {}
-
-abstract class Mixin<T> {
-  factory Mixin._() => null;
-}
-
-class AState extends State<A> {}
-
-class AStateImpl extends AState with Mixin {}
-
-void main() {
-  new AStateImpl();
-}
diff --git a/tests/language_2/regress/regress32305_test.dart b/tests/language_2/regress/regress32305_test.dart
deleted file mode 100644
index fb4198f1f0f..00000000000
--- a/tests/language_2/regress/regress32305_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-void main() {
-  int Function(int) f;
-
-  List<num> l = [];
-  var a = l.map(f);
-  //            ^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] The argument type 'int Function(int)' can't be assigned to the parameter type 'dynamic Function(num)'.
-}
diff --git a/tests/language_2/regress/regress32353_2_test.dart b/tests/language_2/regress/regress32353_2_test.dart
deleted file mode 100644
index 78092534b3e..00000000000
--- a/tests/language_2/regress/regress32353_2_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// The following compile-time error is expected:
-//
-// Error: 'D' can't implement both '#lib1::B<#lib1::D::X, #lib1::D::Y>' and
-// '#lib1::B<#lib1::D::X, #lib1::A>'
-// class D<X, Y> extends B<X, Y> with C<X> {}
-//       ~
-
-class A {}
-
-class B<X, Y> {}
-
-mixin C<X> on B<X, A> {}
-
-class D<X, Y> extends B<X, Y> with C {}
-//    ^
-// [cfe] 'B with C' can't implement both 'B<X, Y>' and 'B<dynamic, A>'
-// [cfe] 'B<X, Y>' doesn't implement 'B<dynamic, A>' so it can't be used with 'C<dynamic>'.
-//                                 ^
-// [analyzer] COMPILE_TIME_ERROR.MIXIN_APPLICATION_NOT_IMPLEMENTED_INTERFACE
-
-main() {}
diff --git a/tests/language_2/regress/regress32353_test.dart b/tests/language_2/regress/regress32353_test.dart
deleted file mode 100644
index 2b109619a2e..00000000000
--- a/tests/language_2/regress/regress32353_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class io_FileSystemEntity {}
-
-class io_Directory extends io_FileSystemEntity {}
-
-class _LocalDirectory
-    extends _LocalFileSystemEntity<_LocalDirectory, io_Directory>
-    with ForwardingDirectory, DirectoryAddOnsMixin {
-  noSuchMethod(invocation) => null;
-}
-
-abstract class _LocalFileSystemEntity<T extends FileSystemEntity,
-    D extends io_FileSystemEntity> extends ForwardingFileSystemEntity<T, D> {}
-
-abstract class FileSystemEntity implements io_FileSystemEntity {}
-
-abstract class ForwardingFileSystemEntity<T extends FileSystemEntity,
-    D extends io_FileSystemEntity> implements FileSystemEntity {}
-
-mixin ForwardingDirectory<T extends Directory>
-    on ForwardingFileSystemEntity<T, io_Directory> implements Directory {
-  get t => T;
-}
-
-abstract class Directory implements FileSystemEntity, io_Directory {}
-
-abstract class DirectoryAddOnsMixin implements Directory {}
-
-main() {
-  var x = new _LocalDirectory();
-  Expect.equals(x.t, _LocalDirectory);
-}
diff --git a/tests/language_2/regress/regress32372_test.dart b/tests/language_2/regress/regress32372_test.dart
deleted file mode 100644
index 89c32c36a45..00000000000
--- a/tests/language_2/regress/regress32372_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A extends Object with B<String>, C {}
-
-class B<T> {}
-
-mixin C<T> on B<T> {
-  get t => T;
-}
-
-main() {
-  var x = new A();
-  Expect.equals(x.t, String);
-}
diff --git a/tests/language_2/regress/regress32425_test.dart b/tests/language_2/regress/regress32425_test.dart
deleted file mode 100644
index 56ce6b90f1f..00000000000
--- a/tests/language_2/regress/regress32425_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class A<T> {}
-
-final map = {};
-
-class B<T> {
-  void foo() {
-    Expect.equals(map[new A<T>().runtimeType], 42);
-  }
-}
-
-class C<T, U> {
-  void build() {
-    new B<T>().foo();
-    new B<U>().foo();
-    Expect.equals(new B<T>().runtimeType, new B<U>().runtimeType);
-  }
-}
-
-void main() {
-  map[new A<String>().runtimeType] = 42;
-  new C<String, String>().build();
-}
diff --git a/tests/language_2/regress/regress32660_test.dart b/tests/language_2/regress/regress32660_test.dart
deleted file mode 100644
index 8c003521d89..00000000000
--- a/tests/language_2/regress/regress32660_test.dart
+++ /dev/null
@@ -1,80 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// noSuchMethod does not overwrite actual implementations, so if an
-// implementation of a member exists that doesn't fulfill the interface it's
-// an error.
-// On the other hand, if no implementation exists,
-// noSuchMethod will take its place and everything is okay.
-
-class B {
-  foo(int x, // force formatter to not combine these lines.
-          {int y} //# 02: compile-time error
-          ) =>
-      x;
-}
-
-class C extends B {
-  foo(int x, // force formatter to not combine these lines.
-      {int y} //# 01: compile-time error
-      );
-  bar();
-
-  noSuchMethod(i) {
-    print("No such method!");
-    return 42;
-  }
-}
-
-abstract class D {
-  foo(int x, // force formatter to not combine these lines.
-      {int y} //# 03: ok
-      );
-}
-
-abstract class E {
-  foo(int x, // force formatter to not combine these lines.
-      {int y} //# 04: ok
-      );
-}
-
-class F extends D implements E {
-  noSuchMethod(i) {
-    print("No such method!");
-    return 42;
-  }
-}
-
-class G {
-  foo(int x, // force formatter to not combine these lines.
-          {int y} //# 05: ok
-          ) =>
-      x;
-}
-
-class H {
-  foo(int x, // force formatter to not combine these lines.
-          {int y} //# 06: compile-time error
-          ) =>
-      x;
-}
-
-class I extends G implements H {
-  noSuchMethod(i) {
-    print("No such method: $i!");
-    return 42;
-  }
-}
-
-main() {
-  var c = new C();
-  c.foo(123);
-  c.bar();
-  var f = new F();
-  f.foo(42);
-  var i = new I();
-  i.foo(42);
-}
diff --git a/tests/language_2/regress/regress33009_lib.dart b/tests/language_2/regress/regress33009_lib.dart
deleted file mode 100644
index dd695fb2576..00000000000
--- a/tests/language_2/regress/regress33009_lib.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class I<T> {
-  T get foo => _foo;
-  T _foo = null;
-}
diff --git a/tests/language_2/regress/regress33009_test.dart b/tests/language_2/regress/regress33009_test.dart
deleted file mode 100644
index 247fdb879c5..00000000000
--- a/tests/language_2/regress/regress33009_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'regress33009_lib.dart';
-
-class A implements I<dynamic> {
-  dynamic get foo => 1;
-}
-
-main() {}
diff --git a/tests/language_2/regress/regress33235_01_runtime_test.dart b/tests/language_2/regress/regress33235_01_runtime_test.dart
deleted file mode 100644
index a87f6387fda..00000000000
--- a/tests/language_2/regress/regress33235_01_runtime_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class C {
-
-
-  static int get n {
-    return 42;
-  }
-}
-
-main() {
-  print(C);
-}
diff --git a/tests/language_2/regress/regress33235_01_test.dart b/tests/language_2/regress/regress33235_01_test.dart
deleted file mode 100644
index fde55e8d8c4..00000000000
--- a/tests/language_2/regress/regress33235_01_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class C {
-  C.n() {}
-//^
-// [cfe] Conflicts with member 'n'.
-//  ^
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_CONSTRUCTOR_AND_STATIC_MEMBER
-
-  static int get n {
-  //             ^
-  // [cfe] Conflicts with constructor 'C.n'.
-    return 42;
-  }
-}
-
-main() {
-  print(C);
-}
diff --git a/tests/language_2/regress/regress33235_02_runtime_test.dart b/tests/language_2/regress/regress33235_02_runtime_test.dart
deleted file mode 100644
index 3a07b765961..00000000000
--- a/tests/language_2/regress/regress33235_02_runtime_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class C {
-
-
-  static int n() {
-    return 42;
-  }
-}
-
-main() {
-  print(C);
-}
diff --git a/tests/language_2/regress/regress33235_02_test.dart b/tests/language_2/regress/regress33235_02_test.dart
deleted file mode 100644
index ddcd04a434f..00000000000
--- a/tests/language_2/regress/regress33235_02_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class C {
-  C.n() {}
-//^
-// [cfe] Conflicts with member 'n'.
-//  ^
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_CONSTRUCTOR_AND_STATIC_MEMBER
-
-  static int n() {
-  //         ^
-  // [cfe] Conflicts with constructor 'C.n'.
-    return 42;
-  }
-}
-
-main() {
-  print(C);
-}
diff --git a/tests/language_2/regress/regress33235_03_runtime_test.dart b/tests/language_2/regress/regress33235_03_runtime_test.dart
deleted file mode 100644
index f7b3517df1a..00000000000
--- a/tests/language_2/regress/regress33235_03_runtime_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class C {
-
-
-  static set n(int x) {}
-}
-
-main() {
-  print(C);
-}
diff --git a/tests/language_2/regress/regress33235_03_test.dart b/tests/language_2/regress/regress33235_03_test.dart
deleted file mode 100644
index 1b6e87e7ce9..00000000000
--- a/tests/language_2/regress/regress33235_03_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class C {
-  C.n() {}
-//^
-// [cfe] Conflicts with setter 'n'.
-//  ^
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_CONSTRUCTOR_AND_STATIC_MEMBER
-
-  static set n(int x) {}
-  //         ^
-  // [cfe] Conflicts with constructor 'n'.
-}
-
-main() {
-  print(C);
-}
diff --git a/tests/language_2/regress/regress33235_04_runtime_test.dart b/tests/language_2/regress/regress33235_04_runtime_test.dart
deleted file mode 100644
index 3761da1ca68..00000000000
--- a/tests/language_2/regress/regress33235_04_runtime_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class C {
-
-
-  static int n() => 42;
-}
-
-main() {
-  print(C);
-}
diff --git a/tests/language_2/regress/regress33235_04_test.dart b/tests/language_2/regress/regress33235_04_test.dart
deleted file mode 100644
index ebdb8d3af23..00000000000
--- a/tests/language_2/regress/regress33235_04_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class C {
-  static int get n => 42;
-
-  static int n() => 42;
-  //         ^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-  // [cfe] 'n' is already declared in this scope.
-}
-
-main() {
-  print(C);
-}
diff --git a/tests/language_2/regress/regress33235_05_runtime_test.dart b/tests/language_2/regress/regress33235_05_runtime_test.dart
deleted file mode 100644
index a8425413c94..00000000000
--- a/tests/language_2/regress/regress33235_05_runtime_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class A {
-  int get n => 43;
-}
-
-class B extends A {
-
-}
-
-abstract class B2 implements A {
-
-}
-
-class C {
-
-
-  int get n => 43;
-}
-
-main() {
-  print(C);
-  print(B);
-  print(B2);
-}
diff --git a/tests/language_2/regress/regress33235_05_test.dart b/tests/language_2/regress/regress33235_05_test.dart
deleted file mode 100644
index e60565898cb..00000000000
--- a/tests/language_2/regress/regress33235_05_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class A {
-  int get n => 43;
-}
-
-class B extends A {
-  static int get n => 42;
-  //             ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-abstract class B2 implements A {
-  static int get n => 42;
-  //             ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-class C {
-  static int get n => 42;
-  //             ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-
-  int get n => 43;
-  //      ^
-  // [cfe] 'n' is already declared in this scope.
-}
-
-main() {
-  print(C);
-  print(B);
-  print(B2);
-}
diff --git a/tests/language_2/regress/regress33235_06_runtime_test.dart b/tests/language_2/regress/regress33235_06_runtime_test.dart
deleted file mode 100644
index d3e35672d5d..00000000000
--- a/tests/language_2/regress/regress33235_06_runtime_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class A {
-  int n() => 43;
-}
-
-class B extends A {
-
-}
-
-abstract class B2 implements A {
-
-}
-
-class C {
-
-
-  int n() => 43;
-}
-
-main() {
-  print(C);
-  print(B);
-  print(B2);
-}
diff --git a/tests/language_2/regress/regress33235_06_test.dart b/tests/language_2/regress/regress33235_06_test.dart
deleted file mode 100644
index 818c1c5c744..00000000000
--- a/tests/language_2/regress/regress33235_06_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class A {
-  int n() => 43;
-}
-
-class B extends A {
-  static int get n => 42;
-  //             ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-abstract class B2 implements A {
-  static int get n => 42;
-  //             ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-class C {
-  static int get n => 42;
-  //             ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-
-  int n() => 43;
-  //  ^
-  // [cfe] 'n' is already declared in this scope.
-}
-
-main() {
-  print(C);
-  print(B);
-  print(B2);
-}
diff --git a/tests/language_2/regress/regress33235_07_runtime_test.dart b/tests/language_2/regress/regress33235_07_runtime_test.dart
deleted file mode 100644
index 81dde9dd284..00000000000
--- a/tests/language_2/regress/regress33235_07_runtime_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class A {
-  void set n(int i) {}
-}
-
-class B extends A {
-
-}
-
-abstract class B2 implements A {
-
-}
-
-class C {
-
-
-  void set n(int i) {}
-}
-
-main() {
-  print(C);
-  print(B);
-  print(B2);
-}
diff --git a/tests/language_2/regress/regress33235_07_test.dart b/tests/language_2/regress/regress33235_07_test.dart
deleted file mode 100644
index 66242727b8f..00000000000
--- a/tests/language_2/regress/regress33235_07_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class A {
-  void set n(int i) {}
-}
-
-class B extends A {
-  static int get n => 42;
-  //             ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-abstract class B2 implements A {
-  static int get n => 42;
-  //             ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-class C {
-  static int get n => 42;
-  //             ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] This static member conflicts with an instance member.
-
-  void set n(int i) {}
-}
-
-main() {
-  print(C);
-  print(B);
-  print(B2);
-}
diff --git a/tests/language_2/regress/regress33235_08_runtime_test.dart b/tests/language_2/regress/regress33235_08_runtime_test.dart
deleted file mode 100644
index a8425413c94..00000000000
--- a/tests/language_2/regress/regress33235_08_runtime_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class A {
-  int get n => 43;
-}
-
-class B extends A {
-
-}
-
-abstract class B2 implements A {
-
-}
-
-class C {
-
-
-  int get n => 43;
-}
-
-main() {
-  print(C);
-  print(B);
-  print(B2);
-}
diff --git a/tests/language_2/regress/regress33235_08_test.dart b/tests/language_2/regress/regress33235_08_test.dart
deleted file mode 100644
index 810b0bb1f32..00000000000
--- a/tests/language_2/regress/regress33235_08_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class A {
-  int get n => 43;
-}
-
-class B extends A {
-  static int n() => 42;
-  //         ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-abstract class B2 implements A {
-  static int n() => 42;
-  //         ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-class C {
-  static int n() => 42;
-  //         ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-
-  int get n => 43;
-  //      ^
-  // [cfe] 'n' is already declared in this scope.
-}
-
-main() {
-  print(C);
-  print(B);
-  print(B2);
-}
diff --git a/tests/language_2/regress/regress33235_09_runtime_test.dart b/tests/language_2/regress/regress33235_09_runtime_test.dart
deleted file mode 100644
index d3e35672d5d..00000000000
--- a/tests/language_2/regress/regress33235_09_runtime_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class A {
-  int n() => 43;
-}
-
-class B extends A {
-
-}
-
-abstract class B2 implements A {
-
-}
-
-class C {
-
-
-  int n() => 43;
-}
-
-main() {
-  print(C);
-  print(B);
-  print(B2);
-}
diff --git a/tests/language_2/regress/regress33235_09_test.dart b/tests/language_2/regress/regress33235_09_test.dart
deleted file mode 100644
index be6f19c89cd..00000000000
--- a/tests/language_2/regress/regress33235_09_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class A {
-  int n() => 43;
-}
-
-class B extends A {
-  static int n() => 42;
-  //         ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-abstract class B2 implements A {
-  static int n() => 42;
-  //         ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-class C {
-  static int n() => 42;
-  //         ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-
-  int n() => 43;
-  //  ^
-  // [cfe] 'n' is already declared in this scope.
-}
-
-main() {
-  print(C);
-  print(B);
-  print(B2);
-}
diff --git a/tests/language_2/regress/regress33235_10_runtime_test.dart b/tests/language_2/regress/regress33235_10_runtime_test.dart
deleted file mode 100644
index 81dde9dd284..00000000000
--- a/tests/language_2/regress/regress33235_10_runtime_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class A {
-  void set n(int i) {}
-}
-
-class B extends A {
-
-}
-
-abstract class B2 implements A {
-
-}
-
-class C {
-
-
-  void set n(int i) {}
-}
-
-main() {
-  print(C);
-  print(B);
-  print(B2);
-}
diff --git a/tests/language_2/regress/regress33235_10_test.dart b/tests/language_2/regress/regress33235_10_test.dart
deleted file mode 100644
index b26f77f5037..00000000000
--- a/tests/language_2/regress/regress33235_10_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class A {
-  void set n(int i) {}
-}
-
-class B extends A {
-  static int n() => 42;
-  //         ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-abstract class B2 implements A {
-  static int n() => 42;
-  //         ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-class C {
-  static int n() => 42;
-  //         ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] This static member conflicts with an instance member.
-
-  void set n(int i) {}
-}
-
-main() {
-  print(C);
-  print(B);
-  print(B2);
-}
diff --git a/tests/language_2/regress/regress33235_11_runtime_test.dart b/tests/language_2/regress/regress33235_11_runtime_test.dart
deleted file mode 100644
index 3761da1ca68..00000000000
--- a/tests/language_2/regress/regress33235_11_runtime_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class C {
-
-
-  static int n() => 42;
-}
-
-main() {
-  print(C);
-}
diff --git a/tests/language_2/regress/regress33235_11_test.dart b/tests/language_2/regress/regress33235_11_test.dart
deleted file mode 100644
index 3376b7a52a0..00000000000
--- a/tests/language_2/regress/regress33235_11_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class C {
-  static void set n(int i) {}
-
-  static int n() => 42;
-  //         ^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-  // [cfe] 'n' is already declared in this scope.
-}
-
-main() {
-  print(C);
-}
diff --git a/tests/language_2/regress/regress33235_12_runtime_test.dart b/tests/language_2/regress/regress33235_12_runtime_test.dart
deleted file mode 100644
index 0d880124b8d..00000000000
--- a/tests/language_2/regress/regress33235_12_runtime_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class A {
-  int get n => 42;
-}
-
-class B extends A {
-
-}
-
-abstract class B2 implements A {
-
-}
-
-class C {
-
-
-  int get n => 42;
-}
-
-main() {
-  print(C);
-  print(B);
-  print(B2);
-}
diff --git a/tests/language_2/regress/regress33235_12_test.dart b/tests/language_2/regress/regress33235_12_test.dart
deleted file mode 100644
index 718c2a93abd..00000000000
--- a/tests/language_2/regress/regress33235_12_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class A {
-  int get n => 42;
-}
-
-class B extends A {
-  static void set n(int i) {}
-  //              ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-abstract class B2 implements A {
-  static void set n(int i) {}
-  //              ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-class C {
-  static void set n(int i) {}
-  //              ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] This static member conflicts with an instance member.
-
-  int get n => 42;
-}
-
-main() {
-  print(C);
-  print(B);
-  print(B2);
-}
diff --git a/tests/language_2/regress/regress33235_13_runtime_test.dart b/tests/language_2/regress/regress33235_13_runtime_test.dart
deleted file mode 100644
index b519f17d34b..00000000000
--- a/tests/language_2/regress/regress33235_13_runtime_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class A {
-  int n() => 42;
-}
-
-class B extends A {
-
-}
-
-abstract class B2 implements A {
-
-}
-
-class C {
-
-
-  int n() => 42;
-}
-
-main() {
-  print(C);
-  print(B);
-  print(B2);
-}
diff --git a/tests/language_2/regress/regress33235_13_test.dart b/tests/language_2/regress/regress33235_13_test.dart
deleted file mode 100644
index 2bbdafb7e4d..00000000000
--- a/tests/language_2/regress/regress33235_13_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class A {
-  int n() => 42;
-}
-
-class B extends A {
-  static void set n(int i) {}
-  //              ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-abstract class B2 implements A {
-  static void set n(int i) {}
-  //              ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-class C {
-  static void set n(int i) {}
-  //              ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] This static member conflicts with an instance member.
-
-  int n() => 42;
-}
-
-main() {
-  print(C);
-  print(B);
-  print(B2);
-}
diff --git a/tests/language_2/regress/regress33235_14_runtime_test.dart b/tests/language_2/regress/regress33235_14_runtime_test.dart
deleted file mode 100644
index 4143a69638b..00000000000
--- a/tests/language_2/regress/regress33235_14_runtime_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-class A {
-  void set n(int x) {}
-}
-
-class B extends A {
-
-}
-
-abstract class B2 implements A {
-
-}
-
-class C {
-
-
-  void set n(int x) {}
-}
-
-main() {
-  print(C);
-  print(B);
-  print(B2);
-}
diff --git a/tests/language_2/regress/regress33235_14_test.dart b/tests/language_2/regress/regress33235_14_test.dart
deleted file mode 100644
index 5005948f1f2..00000000000
--- a/tests/language_2/regress/regress33235_14_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-class A {
-  void set n(int x) {}
-}
-
-class B extends A {
-  static void set n(int i) {}
-  //              ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-abstract class B2 implements A {
-  static void set n(int i) {}
-  //              ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-class C {
-  static void set n(int i) {}
-  //              ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-
-  void set n(int x) {}
-  //       ^
-  // [cfe] 'n' is already declared in this scope.
-}
-
-main() {
-  print(C);
-  print(B);
-  print(B2);
-}
diff --git a/tests/language_2/regress/regress33235_15_runtime_test.dart b/tests/language_2/regress/regress33235_15_runtime_test.dart
deleted file mode 100644
index d3e35672d5d..00000000000
--- a/tests/language_2/regress/regress33235_15_runtime_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class A {
-  int n() => 43;
-}
-
-class B extends A {
-
-}
-
-abstract class B2 implements A {
-
-}
-
-class C {
-
-
-  int n() => 43;
-}
-
-main() {
-  print(C);
-  print(B);
-  print(B2);
-}
diff --git a/tests/language_2/regress/regress33235_15_test.dart b/tests/language_2/regress/regress33235_15_test.dart
deleted file mode 100644
index 522c1325fdf..00000000000
--- a/tests/language_2/regress/regress33235_15_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class A {
-  int n() => 43;
-}
-
-class B extends A {
-  int get n => 42;
-  //      ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_FIELD_AND_METHOD
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-abstract class B2 implements A {
-  int get n => 42;
-  //      ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_FIELD_AND_METHOD
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-class C {
-  int get n => 42;
-
-  int n() => 43;
-  //  ^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-  // [cfe] 'n' is already declared in this scope.
-}
-
-main() {
-  print(C);
-  print(B);
-  print(B2);
-}
diff --git a/tests/language_2/regress/regress33235_16_runtime_test.dart b/tests/language_2/regress/regress33235_16_runtime_test.dart
deleted file mode 100644
index d3e35672d5d..00000000000
--- a/tests/language_2/regress/regress33235_16_runtime_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class A {
-  int n() => 43;
-}
-
-class B extends A {
-
-}
-
-abstract class B2 implements A {
-
-}
-
-class C {
-
-
-  int n() => 43;
-}
-
-main() {
-  print(C);
-  print(B);
-  print(B2);
-}
diff --git a/tests/language_2/regress/regress33235_16_test.dart b/tests/language_2/regress/regress33235_16_test.dart
deleted file mode 100644
index e9a83200ddc..00000000000
--- a/tests/language_2/regress/regress33235_16_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class A {
-  int n() => 43;
-}
-
-class B extends A {
-  void set n(int i) {}
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_FIELD_AND_METHOD
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-abstract class B2 implements A {
-  void set n(int i) {}
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_FIELD_AND_METHOD
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-class C {
-  void set n(int i) {}
-
-  int n() => 43;
-  //  ^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-  // [cfe] 'n' is already declared in this scope.
-}
-
-main() {
-  print(C);
-  print(B);
-  print(B2);
-}
diff --git a/tests/language_2/regress/regress33235_17_test.dart b/tests/language_2/regress/regress33235_17_test.dart
deleted file mode 100644
index 43b5ee1f669..00000000000
--- a/tests/language_2/regress/regress33235_17_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class C {
-  static void set n(int i) {}
-
-  static int get n {
-    return 43;
-  }
-}
-
-main() {
-  print(C);
-}
diff --git a/tests/language_2/regress/regress33235_18_test.dart b/tests/language_2/regress/regress33235_18_test.dart
deleted file mode 100644
index 4a39968527f..00000000000
--- a/tests/language_2/regress/regress33235_18_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class A {
-  void set n(int i) {}
-}
-
-class B extends A {
-  int get n {
-    return 42;
-  }
-}
-
-abstract class B2 implements A {
-  int get n {
-    return 42;
-  }
-}
-
-class C {
-  int get n {
-    return 42;
-  }
-
-  void set n(int i) {}
-}
-
-main() {
-  print(C);
-  print(B);
-  print(B2);
-}
diff --git a/tests/language_2/regress/regress33235_19_test.dart b/tests/language_2/regress/regress33235_19_test.dart
deleted file mode 100644
index 2b9343de9bb..00000000000
--- a/tests/language_2/regress/regress33235_19_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class A {
-  int n() {
-    return 42;
-  }
-}
-
-class B extends A {
-  B.n() {}
-}
-
-abstract class B2 implements A {
-  B2.n() {}
-}
-
-class C {
-  C.n() {}
-
-  int n() {
-    return 42;
-  }
-}
-
-main() {
-  print(C);
-  print(B);
-  print(B2);
-}
diff --git a/tests/language_2/regress/regress33235_20_test.dart b/tests/language_2/regress/regress33235_20_test.dart
deleted file mode 100644
index bee20948ef2..00000000000
--- a/tests/language_2/regress/regress33235_20_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class A {
-  int get n {
-    return 42;
-  }
-}
-
-class B extends A {
-  B.n() {}
-}
-
-abstract class B2 implements A {
-  B2.n() {}
-}
-
-class C {
-  C.n() {}
-
-  int get n {
-    return 42;
-  }
-}
-
-main() {
-  print(C);
-  print(B);
-  print(B2);
-}
diff --git a/tests/language_2/regress/regress33235_21_test.dart b/tests/language_2/regress/regress33235_21_test.dart
deleted file mode 100644
index 03614cd27a3..00000000000
--- a/tests/language_2/regress/regress33235_21_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for compliance with tables at
-// https://github.com/dart-lang/sdk/issues/33235#issue-326617285
-// Files 01 to 16 should be compile time errors, files 17 to 21 should not.
-
-class A {
-  void set n(int i) {}
-}
-
-class B extends A {
-  B.n() {}
-}
-
-abstract class B2 implements A {
-  B2.n() {}
-}
-
-class C {
-  C.n() {}
-
-  void set n(int i) {}
-}
-
-main() {
-  print(C);
-  print(B);
-  print(B2);
-}
diff --git a/tests/language_2/regress/regress33392_test.dart b/tests/language_2/regress/regress33392_test.dart
deleted file mode 100644
index e25a3dec3b5..00000000000
--- a/tests/language_2/regress/regress33392_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import 'package:expect/expect.dart';
-
-class B extends A<B> {}
-
-class A<T> {
-  int x(FutureOr<T> v) => 42;
-}
-
-void main() {
-  Expect.equals(new B().x(new B()), 42);
-}
diff --git a/tests/language_2/regress/regress33479_runtime_test.dart b/tests/language_2/regress/regress33479_runtime_test.dart
deleted file mode 100644
index 122be212fe6..00000000000
--- a/tests/language_2/regress/regress33479_runtime_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-class Hest<TypeX extends Fisk> {}
-
-typedef Fisk = void Function // don't merge lines
-
-        ();
-
-main() {
-  Hest hest = new Hest();
-}
diff --git a/tests/language_2/regress/regress33479_test.dart b/tests/language_2/regress/regress33479_test.dart
deleted file mode 100644
index 492913e12ad..00000000000
--- a/tests/language_2/regress/regress33479_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-
-// @dart = 2.9
-class Hest<TypeX extends Fisk> {}
-//         ^
-// [cfe] Type variables can't have generic function types in their bounds.
-//                       ^^^^
-// [analyzer] COMPILE_TIME_ERROR.NOT_INSTANTIATED_BOUND
-
-typedef Fisk = void Function // don't merge lines
-//      ^^^^
-// [analyzer] COMPILE_TIME_ERROR.TYPE_ALIAS_CANNOT_REFERENCE_ITSELF
-//      ^
-// [cfe] Generic type 'Fisk' can't be used without type arguments in the bounds of its own type variables. It is referenced indirectly through 'Hest'.
-    <TypeY extends Hest>();
-//                 ^^^^
-// [analyzer] COMPILE_TIME_ERROR.NOT_INSTANTIATED_BOUND
-
-main() {
-  Hest hest = new Hest();
-//                ^
-// [cfe] Generic function type 'void Function<TypeY>()' inferred as a type argument.
-}
diff --git a/tests/language_2/regress/regress34034_test.dart b/tests/language_2/regress/regress34034_test.dart
deleted file mode 100644
index 4df807b0d45..00000000000
--- a/tests/language_2/regress/regress34034_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-dynamic bar(int Function(int) f) => f;
-T foo<T>(T a) => a;
-
-void main() {
-  final closure = bar(foo);
-  String s = closure.toString();
-  print(s);
-  Expect.isTrue(s.contains("(int) => int") || s.contains("with <int>"));
-}
diff --git a/tests/language_2/regress/regress34091.dart b/tests/language_2/regress/regress34091.dart
deleted file mode 100644
index 7e759d51cc5..00000000000
--- a/tests/language_2/regress/regress34091.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that stack traces from data URIs don't contain the entire URI, and
-// instead just have the substitute file name: <data:application/dart>
-
-import "dart:isolate";
-import "package:expect/expect.dart";
-import 'dart:async';
-
-void main() {
-  // This data URI encodes:
-  /*
-    import "dart:isolate";
-    void main(_, p){
-      try {
-        throw("Hello World");
-      } catch (e, s) {
-        p.send("$e\n$s");
-      }
-    }
-  */
-  final uri = Uri.parse(
-      "data:application/dart;charset=utf8,import%20%22dart%3Aisolate%22%3Bvoi" +
-          "d%20main(_%2Cp)%7Btry%7Bthrow(%22Hello%20World%22)%3B%7Dcatch(e%2C" +
-          "%20s)%7Bp.send(%22%24e%5Cn%24s%22)%3B%7D%7D");
-  ReceivePort port = new ReceivePort();
-  Isolate.spawnUri(uri, [], port.sendPort);
-  port.listen((trace) {
-    // Test that the trace contains the exception message.
-    Expect.isTrue(trace.contains("Hello World"));
-
-    // Test that the trace contains data URI substitute.
-    Expect.isTrue(trace.contains("<data:application/dart>"));
-
-    // Test that the trace doesn't contain any leftover URL encoded junk.
-    Expect.isFalse(trace.contains("%20"));
-
-    port.close();
-  });
-}
diff --git a/tests/language_2/regress/regress34147_test.dart b/tests/language_2/regress/regress34147_test.dart
deleted file mode 100644
index ba74a1ae434..00000000000
--- a/tests/language_2/regress/regress34147_test.dart
+++ /dev/null
@@ -1,74 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-void main() {
-  conditionalTest();
-  orTest();
-  andTest();
-  ifTest();
-  forTest();
-  whileTest();
-  doTest();
-  notTest();
-}
-
-void conditionalTest() {
-  bool x = null;
-  Expect.throwsAssertionError(() => x ? 1 : 0);
-}
-
-void orTest() {
-  bool x = null;
-  Expect.throwsAssertionError(() => x || x);
-  Expect.throwsAssertionError(() => x || false);
-  Expect.throwsAssertionError(() => x || true);
-  Expect.throwsAssertionError(() => false || x);
-  Expect.isTrue(true || x);
-}
-
-void andTest() {
-  bool x = null;
-  Expect.throwsAssertionError(() => x && x);
-  Expect.throwsAssertionError(() => x && false);
-  Expect.throwsAssertionError(() => x && true);
-  Expect.isFalse(false && x);
-  Expect.throwsAssertionError(() => true && x);
-}
-
-void ifTest() {
-  bool x = null;
-  Expect.throwsAssertionError(() {
-    if (x) {}
-  });
-}
-
-void forTest() {
-  bool x = null;
-  Expect.throwsAssertionError(() {
-    for (; x;) {}
-  });
-}
-
-void whileTest() {
-  bool x = null;
-  Expect.throwsAssertionError(() {
-    while (x) {}
-  });
-}
-
-void doTest() {
-  bool x = null;
-  Expect.throwsAssertionError(() {
-    do {} while (x);
-  });
-}
-
-void notTest() {
-  bool x = null;
-  Expect.throwsAssertionError(() => !x);
-}
diff --git a/tests/language_2/regress/regress34225_test.dart b/tests/language_2/regress/regress34225_test.dart
deleted file mode 100644
index b99d904c7c6..00000000000
--- a/tests/language_2/regress/regress34225_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class C {
-  static set C(v) {} //# 01: compile-time error
-  set C(v) {} //# 02: compile-time error
-}
-
-main() {
-  new C();
-}
diff --git a/tests/language_2/regress/regress34235_runtime_test.dart b/tests/language_2/regress/regress34235_runtime_test.dart
deleted file mode 100644
index 1f8058cb137..00000000000
--- a/tests/language_2/regress/regress34235_runtime_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Base {
-  void foo() {}
-}
-
-class M1 {
-  void foo(
-      // Prevent formatter from joining the line below to the one above
-
-      ) {}
-}
-
-class BaseWithM1 = Base with M1;
-
-class M2 {
-  void foo() {}
-}
-
-class Derived extends BaseWithM1 with M2 {}
-
-main() {
-  new Derived().foo();
-}
diff --git a/tests/language_2/regress/regress34235_test.dart b/tests/language_2/regress/regress34235_test.dart
deleted file mode 100644
index 5c199a5401d..00000000000
--- a/tests/language_2/regress/regress34235_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Base {
-  void foo() {}
-}
-
-class M1 {
-  void foo(
-      // Prevent formatter from joining the line below to the one above
-      {x}
-      ) {}
-}
-
-class BaseWithM1 = Base with M1;
-
-class M2 {
-  void foo() {}
-}
-
-class Derived extends BaseWithM1 with M2 {}
-//    ^^^^^^^
-// [cfe] Applying the mixin 'M2' to 'BaseWithM1' introduces an erroneous override of 'foo'.
-//                                    ^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-
-main() {
-  new Derived().foo();
-}
diff --git a/tests/language_2/regress/regress34392_test.dart b/tests/language_2/regress/regress34392_test.dart
deleted file mode 100644
index afdb5619149..00000000000
--- a/tests/language_2/regress/regress34392_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-abstract class I {
-  foo([a]);
-}
-
-abstract class A {
-  foo() {}
-}
-
-abstract class B extends A implements I {}
-
-class C extends B {
-  foo([a]) {}
-}
-
-void main() {}
diff --git a/tests/language_2/regress/regress34404_flutter_modified_test.dart b/tests/language_2/regress/regress34404_flutter_modified_test.dart
deleted file mode 100644
index 82be4b106bf..00000000000
--- a/tests/language_2/regress/regress34404_flutter_modified_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test case is a reduction of some Flutter code, modified to use the new
-// mixin syntax.  We wish to verify that the class _DismissibleState doesn't
-// have any type inference errors.
-
-class _DismissibleState extends State<Dismissible>
-    with TickerProviderStateMixin, AutomaticKeepAliveClientMixin {}
-
-abstract class State<T extends StatefulWidget> extends Diagnosticable {}
-
-abstract class StatefulWidget extends Widget {}
-
-abstract class Widget extends DiagnosticableTree {}
-
-abstract class DiagnosticableTree extends Diagnosticable {}
-
-abstract class Diagnosticable {}
-
-class Dismissible extends StatefulWidget {}
-
-mixin TickerProviderStateMixin<T extends StatefulWidget> on State<T>
-    implements TickerProvider {}
-
-abstract class TickerProvider {}
-
-mixin AutomaticKeepAliveClientMixin<T extends StatefulWidget> on State<T> {}
-
-main() {
-  new _DismissibleState();
-}
diff --git a/tests/language_2/regress/regress34404_flutter_test.dart b/tests/language_2/regress/regress34404_flutter_test.dart
deleted file mode 100644
index 9539112a378..00000000000
--- a/tests/language_2/regress/regress34404_flutter_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test case is a reduction of some Flutter code.  We wish to verify that
-// the class _DismissibleState doesn't have any type inference errors.
-
-class _DismissibleState extends State<Dismissible>
-    with TickerProviderStateMixin, AutomaticKeepAliveClientMixin {}
-
-abstract class State<T extends StatefulWidget> extends Diagnosticable {}
-
-abstract class StatefulWidget extends Widget {}
-
-abstract class Widget extends DiagnosticableTree {}
-
-abstract class DiagnosticableTree extends Diagnosticable {}
-
-abstract class Diagnosticable {}
-
-class Dismissible extends StatefulWidget {}
-
-mixin TickerProviderStateMixin<T extends StatefulWidget> on State<T>
-    implements TickerProvider {}
-
-abstract class TickerProvider {}
-
-mixin AutomaticKeepAliveClientMixin<T extends StatefulWidget> on State<T> {}
-
-main() {
-  new _DismissibleState();
-}
diff --git a/tests/language_2/regress/regress34482_test.dart b/tests/language_2/regress/regress34482_test.dart
deleted file mode 100644
index 187c78b562d..00000000000
--- a/tests/language_2/regress/regress34482_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-main() {
-  Future f = new Future(() => 12345);
-  Future<FutureOr> f1 = f;
-
-  FutureOr fo = f;
-  f1 = fo;
-}
diff --git a/tests/language_2/regress/regress34488_runtime_test.dart b/tests/language_2/regress/regress34488_runtime_test.dart
deleted file mode 100644
index b2957dfb200..00000000000
--- a/tests/language_2/regress/regress34488_runtime_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-abstract class Base {
-  void f(int i);
-  void g([int i]);
-  void h({int i});
-}
-
-abstract class Mixin implements Base {}
-
-class Derived extends Object with Mixin {
-  // Type `(int) -> void` should be inherited from `Base`
-  f(i) {}
-
-  // Type `([int]) -> void` should be inherited from `Base`
-  g([i]) {}
-
-  // Type `({h: int}) -> void` should be inherited from `Base`
-  h({i}) {}
-}
-
-main() {
-  var d = new Derived();
-
-
-
-
-
-
-}
diff --git a/tests/language_2/regress/regress34488_test.dart b/tests/language_2/regress/regress34488_test.dart
deleted file mode 100644
index c0e40955015..00000000000
--- a/tests/language_2/regress/regress34488_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-abstract class Base {
-  void f(int i);
-  void g([int i]);
-  void h({int i});
-}
-
-abstract class Mixin implements Base {}
-
-class Derived extends Object with Mixin {
-  // Type `(int) -> void` should be inherited from `Base`
-  f(i) {}
-
-  // Type `([int]) -> void` should be inherited from `Base`
-  g([i]) {}
-
-  // Type `({h: int}) -> void` should be inherited from `Base`
-  h({i}) {}
-}
-
-main() {
-  var d = new Derived();
-  d.f('bad');
-  //  ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] The argument type 'String' can't be assigned to the parameter type 'int'.
-  d.g('bad');
-  //  ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] The argument type 'String' can't be assigned to the parameter type 'int'.
-  d.h(i: 'bad');
-  //     ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] The argument type 'String' can't be assigned to the parameter type 'int'.
-  Object x = d.f(1);
-  //           ^
-  // [analyzer] COMPILE_TIME_ERROR.USE_OF_VOID_RESULT
-  // [cfe] This expression has type 'void' and can't be used.
-  Object y = d.g(1);
-  //           ^
-  // [analyzer] COMPILE_TIME_ERROR.USE_OF_VOID_RESULT
-  // [cfe] This expression has type 'void' and can't be used.
-  Object z = d.h(i: 1);
-  //           ^
-  // [analyzer] COMPILE_TIME_ERROR.USE_OF_VOID_RESULT
-  // [cfe] This expression has type 'void' and can't be used.
-}
diff --git a/tests/language_2/regress/regress34489_runtime_test.dart b/tests/language_2/regress/regress34489_runtime_test.dart
deleted file mode 100644
index c2efabadd5f..00000000000
--- a/tests/language_2/regress/regress34489_runtime_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class C<T> {
-  var field = T;
-}
-
-main() {
-
-}
diff --git a/tests/language_2/regress/regress34489_test.dart b/tests/language_2/regress/regress34489_test.dart
deleted file mode 100644
index 28141dcbbc3..00000000000
--- a/tests/language_2/regress/regress34489_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class C<T> {
-  var field = T;
-}
-
-main() {
-  new C().field = 'bad';
-  //              ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  // [cfe] A value of type 'String' can't be assigned to a variable of type 'Type'.
-}
diff --git a/tests/language_2/regress/regress34495_runtime_test.dart b/tests/language_2/regress/regress34495_runtime_test.dart
deleted file mode 100644
index 3e132311da9..00000000000
--- a/tests/language_2/regress/regress34495_runtime_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-
-
-main() {}
diff --git a/tests/language_2/regress/regress34495_test.dart b/tests/language_2/regress/regress34495_test.dart
deleted file mode 100644
index 85d923d1a2c..00000000000
--- a/tests/language_2/regress/regress34495_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-final foo = A<B>.foo();
-//          ^
-// [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-// [cfe] Couldn't find constructor 'A'.
-//            ^
-// [analyzer] COMPILE_TIME_ERROR.NON_TYPE_AS_TYPE_ARGUMENT
-// [cfe] 'B' isn't a type.
-
-main() {}
diff --git a/tests/language_2/regress/regress34498_test.dart b/tests/language_2/regress/regress34498_test.dart
deleted file mode 100644
index d52a7692e07..00000000000
--- a/tests/language_2/regress/regress34498_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:core';
-import 'dart:core' as core;
-
-class A {
-  core.List get core => null;
-//^^^^
-// [analyzer] COMPILE_TIME_ERROR.PREFIX_SHADOWED_BY_LOCAL_DECLARATION
-// [cfe] 'core.List' can't be used as a type because 'core' doesn't refer to an import prefix.
-}
-
-main() {
-  new A().core;
-}
diff --git a/tests/language_2/regress/regress34514_test.dart b/tests/language_2/regress/regress34514_test.dart
deleted file mode 100644
index b43bf495766..00000000000
--- a/tests/language_2/regress/regress34514_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Inferred type should be `int`
-var x = (() => 1)();
-
-main() {
-  x = 'bad'; // `String` not assignable to `int`
-  //  ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  // [cfe] A value of type 'String' can't be assigned to a variable of type 'int'.
-}
diff --git a/tests/language_2/regress/regress34532_test.dart b/tests/language_2/regress/regress34532_test.dart
deleted file mode 100644
index 47c8a7b6581..00000000000
--- a/tests/language_2/regress/regress34532_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Foo<T> {}
-
-class Bar<T extends Foo<T>> {}
-
-// Should be error here, because Bar completes to Bar<Foo>
-class Baz extends Bar {}
-//                ^^^
-// [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-// [cfe] Inferred type argument 'Foo<dynamic>' doesn't conform to the bound 'Foo<T>' of the type variable 'T' on 'Bar'.
-
-void main() {}
diff --git a/tests/language_2/regress/regress34635_test.dart b/tests/language_2/regress/regress34635_test.dart
deleted file mode 100644
index 94a15d4b17d..00000000000
--- a/tests/language_2/regress/regress34635_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A<X extends C> {}
-//                ^
-// [analyzer] COMPILE_TIME_ERROR.NOT_INSTANTIATED_BOUND
-
-class C<X extends C> {}
-//      ^
-// [cfe] Generic type 'C' can't be used without type arguments in the bounds of its own type variables.
-//                ^
-// [analyzer] COMPILE_TIME_ERROR.NOT_INSTANTIATED_BOUND
-
-main() {}
diff --git a/tests/language_2/regress/regress34636_test.dart b/tests/language_2/regress/regress34636_test.dart
deleted file mode 100644
index da8b6e2f8e8..00000000000
--- a/tests/language_2/regress/regress34636_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A<X extends B> {}
-//                ^
-// [analyzer] COMPILE_TIME_ERROR.NOT_INSTANTIATED_BOUND
-
-class B<X extends C> {}
-//    ^
-// [cfe] Generic type 'B' can't be used without type arguments in the bounds of its own type variables. It is referenced indirectly through 'C'.
-//                ^
-// [analyzer] COMPILE_TIME_ERROR.NOT_INSTANTIATED_BOUND
-
-class C<X extends A<B>> {}
-//                  ^
-// [analyzer] COMPILE_TIME_ERROR.NOT_INSTANTIATED_BOUND
-
-main() {}
diff --git a/tests/language_2/regress/regress34870_test.dart b/tests/language_2/regress/regress34870_test.dart
deleted file mode 100644
index 04a4b042d0b..00000000000
--- a/tests/language_2/regress/regress34870_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test: superclass is not shadowed by class members.
-
-class A extends B {
-  B() {}
-}
-
-class B {}
-
-main() {}
diff --git a/tests/language_2/regress/regress34877_test.dart b/tests/language_2/regress/regress34877_test.dart
deleted file mode 100644
index 02e36a15149..00000000000
--- a/tests/language_2/regress/regress34877_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test: ensure that async for loops remain async for loops when
-// mixed in.
-
-import 'dart:async';
-
-abstract class _Mixin {
-  Future<int> stuff(Stream<int> values) async {
-    var total = 0;
-    await for (var value in values) {
-      total += value;
-    }
-    return total;
-  }
-}
-
-class Implementation extends Object with _Mixin {}
-
-void main() async {
-  print(await Implementation().stuff(Stream.fromIterable([1, 2, 3])));
-}
diff --git a/tests/language_2/regress/regress34896_test.dart b/tests/language_2/regress/regress34896_test.dart
deleted file mode 100644
index 43f38c164d9..00000000000
--- a/tests/language_2/regress/regress34896_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test: verify super-signatures of super-invoked methods of a
-// mixin against the superclass, not signatures in the mixin.
-
-class A<T> {
-  void remove(T x) {}
-}
-
-mixin M<U> on A<U> {
-  void remove(Object x) {
-    super.remove(x as U);
-  }
-}
-
-class X<T> = A<T> with M<T>;
-
-main() {}
diff --git a/tests/language_2/regress/regress34907_test.dart b/tests/language_2/regress/regress34907_test.dart
deleted file mode 100644
index 3a646bba0e7..00000000000
--- a/tests/language_2/regress/regress34907_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C<T> {}
-
-mixin M<T> on C<T> {}
-
-M<T> f<T>() {
-  Expect.equals(T, int);
-  return null;
-}
-
-main() {
-  C<int> c = f();
-}
diff --git a/tests/language_2/regress/regress35043_runtime_test.dart b/tests/language_2/regress/regress35043_runtime_test.dart
deleted file mode 100644
index 3e132311da9..00000000000
--- a/tests/language_2/regress/regress35043_runtime_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-
-
-main() {}
diff --git a/tests/language_2/regress/regress35043_test.dart b/tests/language_2/regress/regress35043_test.dart
deleted file mode 100644
index 4bb870c1129..00000000000
--- a/tests/language_2/regress/regress35043_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-final foo = Map<int>();
-//          ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-// [cfe] Expected 2 type arguments.
-
-main() {}
diff --git a/tests/language_2/regress/regress35090_test.dart b/tests/language_2/regress/regress35090_test.dart
deleted file mode 100644
index 405f7640fd9..00000000000
--- a/tests/language_2/regress/regress35090_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  int get g => 0;
-}
-
-class C implements A {
-  noSuchMethod(Invocation i) {
-    return 1;
-  }
-}
-
-mixin M on A {
-  int test() {
-    return super.g;
-  }
-
-  noSuchMethod(Invocation i) {
-    return 2;
-  }
-}
-
-class MA extends C with M {}
-
-main() {
-  Expect.equals(new MA().g, 2);
-  Expect.equals(new MA().test(), 2);
-}
diff --git a/tests/language_2/regress/regress35258_runtime_test.dart b/tests/language_2/regress/regress35258_runtime_test.dart
deleted file mode 100644
index 62bdb49baf4..00000000000
--- a/tests/language_2/regress/regress35258_runtime_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-main() {
-  new C(42);
-}
-
-class C {
-  final d;
-
-
-  C(this.d) {}
-}
diff --git a/tests/language_2/regress/regress35258_test.dart b/tests/language_2/regress/regress35258_test.dart
deleted file mode 100644
index e084a5c355f..00000000000
--- a/tests/language_2/regress/regress35258_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  new C(42);
-  //  ^
-  // [cfe] Can't use 'C' because it is declared more than once.
-  //    ^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS
-}
-
-class C {
-  final d;
-  //    ^
-  // [cfe] Final field 'd' is not initialized.
-
-  C() {}
-//^
-// [analyzer] COMPILE_TIME_ERROR.FINAL_NOT_INITIALIZED_CONSTRUCTOR
-  C(this.d) {}
-//^
-// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_CONSTRUCTOR
-// [cfe] 'C' is already declared in this scope.
-}
diff --git a/tests/language_2/regress/regress35259_runtime_test.dart b/tests/language_2/regress/regress35259_runtime_test.dart
deleted file mode 100644
index 203fbf43b5b..00000000000
--- a/tests/language_2/regress/regress35259_runtime_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Supertype {
-
-
-}
-
-main() {
-  print(new Supertype());
-}
diff --git a/tests/language_2/regress/regress35259_test.dart b/tests/language_2/regress/regress35259_test.dart
deleted file mode 100644
index 245a0e67edb..00000000000
--- a/tests/language_2/regress/regress35259_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Supertype {
-  factory Supertype() = Unresolved;
-  //                    ^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.REDIRECT_TO_NON_CLASS
-  // [cfe] Couldn't find constructor 'Unresolved'.
-  //                    ^
-  // [cfe] Redirection constructor target not found: 'Unresolved'
-  factory Supertype() = Unresolved;
-//        ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_CONSTRUCTOR
-//        ^
-// [cfe] 'Supertype' is already declared in this scope.
-//                      ^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.REDIRECT_TO_NON_CLASS
-// [cfe] Couldn't find constructor 'Unresolved'.
-//                      ^
-// [cfe] Redirection constructor target not found: 'Unresolved'
-}
-
-main() {
-  print(new Supertype());
-  //        ^
-  // [cfe] Can't use 'Supertype' because it is declared more than once.
-}
diff --git a/tests/language_2/regress/regress35260_runtime_test.dart b/tests/language_2/regress/regress35260_runtime_test.dart
deleted file mode 100644
index c620ace5ab6..00000000000
--- a/tests/language_2/regress/regress35260_runtime_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Supertype {
-  factory Supertype() = X;
-
-}
-
-class X implements Supertype {
-  X();
-}
-
-main() {
-  X x = new Supertype();
-}
diff --git a/tests/language_2/regress/regress35260_test.dart b/tests/language_2/regress/regress35260_test.dart
deleted file mode 100644
index 6b1f53f4325..00000000000
--- a/tests/language_2/regress/regress35260_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Supertype {
-  factory Supertype() = X;
-  factory Supertype() = X;
-//        ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_CONSTRUCTOR
-//        ^
-// [cfe] 'Supertype' is already declared in this scope.
-}
-
-class X implements Supertype {
-  X();
-}
-
-main() {
-  X x = new Supertype();
-  //        ^
-  // [cfe] Can't use 'Supertype' because it is declared more than once.
-}
diff --git a/tests/language_2/regress/regress35266_runtime_test.dart b/tests/language_2/regress/regress35266_runtime_test.dart
deleted file mode 100644
index 36006050ab7..00000000000
--- a/tests/language_2/regress/regress35266_runtime_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class B<T> extends C<T> {
-  B();
-  factory B.foo() = B<T>;
-
-}
-
-class C<K> {
-  C();
-  factory C.bar() = B<K>.foo;
-}
-
-main() {
-  new C.bar();
-}
diff --git a/tests/language_2/regress/regress35266_test.dart b/tests/language_2/regress/regress35266_test.dart
deleted file mode 100644
index bd0dab1418e..00000000000
--- a/tests/language_2/regress/regress35266_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class B<T> extends C<T> {
-  B();
-  factory B.foo() = B<T>;
-  factory B.foo() = B<T>;
-//        ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.DUPLICATE_CONSTRUCTOR
-//        ^
-// [cfe] 'B.foo' is already declared in this scope.
-}
-
-class C<K> {
-  C();
-  factory C.bar() = B<K>.foo;
-  //                ^
-  // [cfe] Can't use 'B.foo' because it is declared more than once.
-}
-
-main() {
-  new C.bar();
-}
diff --git a/tests/language_2/regress/regress35542_test.dart b/tests/language_2/regress/regress35542_test.dart
deleted file mode 100644
index 434780285ae..00000000000
--- a/tests/language_2/regress/regress35542_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import 'package:expect/expect.dart';
-
-FutureOr<dynamic> x = 'abc';
-dynamic y = 'abc';
-
-void smi() {
-  x = 42;
-  y = 42;
-}
-
-void mint() {
-  x = 0x7fffffff00000000;
-  y = 0x7fffffff00000000;
-}
-
-void dbl() {
-  x = 1.0;
-  y = 1.0;
-}
-
-void main() {
-  smi();
-  Expect.isTrue(identical(x, y));
-  mint();
-  Expect.isTrue(identical(x, y));
-  dbl();
-  Expect.isTrue(identical(x, y));
-}
diff --git a/tests/language_2/regress/regress36084_test.dart b/tests/language_2/regress/regress36084_test.dart
deleted file mode 100644
index bd033ba19e4..00000000000
--- a/tests/language_2/regress/regress36084_test.dart
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  void call(int a, [int b]) {}
-}
-
-class A1 {
-  void call(int a, [int b]) {}
-  int noSuchMethod(Invocation invocation) {
-    return 42;
-  }
-}
-
-class A2 {
-  // Same as A1 but without a call method.
-  int noSuchMethod(Invocation invocation) {
-    return 42;
-  }
-}
-
-class B {
-  dynamic foo;
-  dynamic get bar => foo;
-}
-
-class B1 {
-  dynamic foo;
-  dynamic get bar => foo;
-
-  int noSuchMethod(Invocation invocation) {
-    Expect.fail('B1.noSuchMethod should not be called.');
-  }
-}
-
-main() {
-  B b = new B();
-  b.foo = new A();
-  Expect.throwsNoSuchMethodError(() => b.foo(1, 2, 3));
-  Expect.throwsNoSuchMethodError(() => b.bar(1, 2, 3));
-  b.foo = new A1();
-  Expect.equals(42, b.foo(1, 2, 3));
-  Expect.equals(42, b.bar(1, 2, 3));
-  b.foo = new A2();
-  Expect.equals(42, b.foo(1, 2, 3));
-  Expect.equals(42, b.bar(1, 2, 3));
-
-  // Same test but with B1, which has its own `noSuchMethod()` handler.
-  B1 b1 = new B1();
-  b1.foo = new A();
-  Expect.throwsNoSuchMethodError(() => b1.foo(1, 2, 3));
-  Expect.throwsNoSuchMethodError(() => b1.bar(1, 2, 3));
-  b1.foo = new A1();
-  Expect.equals(42, b1.foo(1, 2, 3));
-  Expect.equals(42, b1.bar(1, 2, 3));
-  b1.foo = new A2();
-  Expect.equals(42, b1.foo(1, 2, 3));
-  Expect.equals(42, b1.bar(1, 2, 3));
-}
diff --git a/tests/language_2/regress/regress3806_test.dart b/tests/language_2/regress/regress3806_test.dart
deleted file mode 100644
index 3fd3fa98d04..00000000000
--- a/tests/language_2/regress/regress3806_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart2js produced a statement in an expression context for this test.
-
-class A {
-  dynamic foo = "foo";
-  bar(x) {
-    if (foo == 3) return;
-    var t = x;
-    if (x == 0) t = foo;
-    foo = t;
-  }
-
-  toto(x) => x;
-  titi() {
-    foo = 0;
-    for (int i = 0; i < 3; i++) bar(i);
-  }
-}
-
-main() => new A().titi();
diff --git a/tests/language_2/regress/regress38816_test.dart b/tests/language_2/regress/regress38816_test.dart
deleted file mode 100644
index 663e5c5b6dd..00000000000
--- a/tests/language_2/regress/regress38816_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void foo<T extends num>(T x) {}
-void bar<T extends num>(num x) {}
-
-typedef F = Function<T extends num>(T x);
-
-void main() {
-  Expect.isTrue(foo is F);
-  Expect.isTrue(bar is F);
-}
diff --git a/tests/language_2/regress/regress40066_test.dart b/tests/language_2/regress/regress40066_test.dart
deleted file mode 100644
index 8cc91285168..00000000000
--- a/tests/language_2/regress/regress40066_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  foo(T x) {
-    print('T = $T');
-    print('x.runtimeType = ${x.runtimeType}');
-    print('x is T = ${x is T}');
-  }
-}
-
-typedef IntFunc = void Function(int);
-typedef StringFunc = void Function(String);
-
-void main() {
-  void inner<S>(S y) {}
-
-  IntFunc innerOfInt = inner;
-  A a = new A<IntFunc>();
-  a.foo(innerOfInt);
-
-  StringFunc innerOfString = inner;
-  Expect.throwsTypeError(() {
-    a.foo(innerOfString);
-  });
-}
diff --git a/tests/language_2/regress/regress40765_test.dart b/tests/language_2/regress/regress40765_test.dart
deleted file mode 100644
index 6037c00fc2d..00000000000
--- a/tests/language_2/regress/regress40765_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Something {
-  final int x;
-  Something({this.x});
-}
-
-abstract class Base {
-  Something get x;
-}
-
-class Child1 extends Base {
-  final Something x;
-  Child1({this.x});
-}
-
-class Child2 extends Base {
-  final int y;
-  final Something x;
-  Child2({this.x, this.y});
-}
-
-@pragma('vm:never-inline')
-int foo(int k, Base x) {
-  var y = 0;
-  for (var i = 0; i < k; i++) {
-    x as Child1;
-    // Next line will be hoisted out as x.{Child1::x}.{Something::x}
-    // and at foo(0, Child2(..., y: 24)) will end up executing as
-    // x.{Child1::x} -> will load Child2::y (24) and then segfault.
-    y = x.x.x;
-  }
-  return y;
-}
-
-void main() {
-  print(foo(1, Child1(x: Something(x: 1))));
-  print(foo(1, Child1(x: Something(x: 2))));
-  print(foo(0, Child2(x: Something(x: 42), y: 24)));
-}
diff --git a/tests/language_2/regress/regress4157508_test.dart b/tests/language_2/regress/regress4157508_test.dart
deleted file mode 100644
index a2bd1110795..00000000000
--- a/tests/language_2/regress/regress4157508_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Issue4157508Test {
-  Issue4157508Test(var v) {
-    var d = new DateTime.fromMillisecondsSinceEpoch(v, isUtc: true);
-  }
-
-  static void testMain() {
-    var d = new Issue4157508Test(0);
-  }
-}
-
-main() {
-  Issue4157508Test.testMain();
-}
diff --git a/tests/language_2/regress/regress41983_test.dart b/tests/language_2/regress/regress41983_test.dart
deleted file mode 100644
index 60f2016dd29..00000000000
--- a/tests/language_2/regress/regress41983_test.dart
+++ /dev/null
@@ -1,20016 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  List<int> ints = <int>[]
-    ..add(0)
-    ..add(1)
-    ..add(2)
-    ..add(3)
-    ..add(4)
-    ..add(5)
-    ..add(6)
-    ..add(7)
-    ..add(8)
-    ..add(9)
-    ..add(10)
-    ..add(11)
-    ..add(12)
-    ..add(13)
-    ..add(14)
-    ..add(15)
-    ..add(16)
-    ..add(17)
-    ..add(18)
-    ..add(19)
-    ..add(20)
-    ..add(21)
-    ..add(22)
-    ..add(23)
-    ..add(24)
-    ..add(25)
-    ..add(26)
-    ..add(27)
-    ..add(28)
-    ..add(29)
-    ..add(30)
-    ..add(31)
-    ..add(32)
-    ..add(33)
-    ..add(34)
-    ..add(35)
-    ..add(36)
-    ..add(37)
-    ..add(38)
-    ..add(39)
-    ..add(40)
-    ..add(41)
-    ..add(42)
-    ..add(43)
-    ..add(44)
-    ..add(45)
-    ..add(46)
-    ..add(47)
-    ..add(48)
-    ..add(49)
-    ..add(50)
-    ..add(51)
-    ..add(52)
-    ..add(53)
-    ..add(54)
-    ..add(55)
-    ..add(56)
-    ..add(57)
-    ..add(58)
-    ..add(59)
-    ..add(60)
-    ..add(61)
-    ..add(62)
-    ..add(63)
-    ..add(64)
-    ..add(65)
-    ..add(66)
-    ..add(67)
-    ..add(68)
-    ..add(69)
-    ..add(70)
-    ..add(71)
-    ..add(72)
-    ..add(73)
-    ..add(74)
-    ..add(75)
-    ..add(76)
-    ..add(77)
-    ..add(78)
-    ..add(79)
-    ..add(80)
-    ..add(81)
-    ..add(82)
-    ..add(83)
-    ..add(84)
-    ..add(85)
-    ..add(86)
-    ..add(87)
-    ..add(88)
-    ..add(89)
-    ..add(90)
-    ..add(91)
-    ..add(92)
-    ..add(93)
-    ..add(94)
-    ..add(95)
-    ..add(96)
-    ..add(97)
-    ..add(98)
-    ..add(99)
-    ..add(100)
-    ..add(101)
-    ..add(102)
-    ..add(103)
-    ..add(104)
-    ..add(105)
-    ..add(106)
-    ..add(107)
-    ..add(108)
-    ..add(109)
-    ..add(110)
-    ..add(111)
-    ..add(112)
-    ..add(113)
-    ..add(114)
-    ..add(115)
-    ..add(116)
-    ..add(117)
-    ..add(118)
-    ..add(119)
-    ..add(120)
-    ..add(121)
-    ..add(122)
-    ..add(123)
-    ..add(124)
-    ..add(125)
-    ..add(126)
-    ..add(127)
-    ..add(128)
-    ..add(129)
-    ..add(130)
-    ..add(131)
-    ..add(132)
-    ..add(133)
-    ..add(134)
-    ..add(135)
-    ..add(136)
-    ..add(137)
-    ..add(138)
-    ..add(139)
-    ..add(140)
-    ..add(141)
-    ..add(142)
-    ..add(143)
-    ..add(144)
-    ..add(145)
-    ..add(146)
-    ..add(147)
-    ..add(148)
-    ..add(149)
-    ..add(150)
-    ..add(151)
-    ..add(152)
-    ..add(153)
-    ..add(154)
-    ..add(155)
-    ..add(156)
-    ..add(157)
-    ..add(158)
-    ..add(159)
-    ..add(160)
-    ..add(161)
-    ..add(162)
-    ..add(163)
-    ..add(164)
-    ..add(165)
-    ..add(166)
-    ..add(167)
-    ..add(168)
-    ..add(169)
-    ..add(170)
-    ..add(171)
-    ..add(172)
-    ..add(173)
-    ..add(174)
-    ..add(175)
-    ..add(176)
-    ..add(177)
-    ..add(178)
-    ..add(179)
-    ..add(180)
-    ..add(181)
-    ..add(182)
-    ..add(183)
-    ..add(184)
-    ..add(185)
-    ..add(186)
-    ..add(187)
-    ..add(188)
-    ..add(189)
-    ..add(190)
-    ..add(191)
-    ..add(192)
-    ..add(193)
-    ..add(194)
-    ..add(195)
-    ..add(196)
-    ..add(197)
-    ..add(198)
-    ..add(199)
-    ..add(200)
-    ..add(201)
-    ..add(202)
-    ..add(203)
-    ..add(204)
-    ..add(205)
-    ..add(206)
-    ..add(207)
-    ..add(208)
-    ..add(209)
-    ..add(210)
-    ..add(211)
-    ..add(212)
-    ..add(213)
-    ..add(214)
-    ..add(215)
-    ..add(216)
-    ..add(217)
-    ..add(218)
-    ..add(219)
-    ..add(220)
-    ..add(221)
-    ..add(222)
-    ..add(223)
-    ..add(224)
-    ..add(225)
-    ..add(226)
-    ..add(227)
-    ..add(228)
-    ..add(229)
-    ..add(230)
-    ..add(231)
-    ..add(232)
-    ..add(233)
-    ..add(234)
-    ..add(235)
-    ..add(236)
-    ..add(237)
-    ..add(238)
-    ..add(239)
-    ..add(240)
-    ..add(241)
-    ..add(242)
-    ..add(243)
-    ..add(244)
-    ..add(245)
-    ..add(246)
-    ..add(247)
-    ..add(248)
-    ..add(249)
-    ..add(250)
-    ..add(251)
-    ..add(252)
-    ..add(253)
-    ..add(254)
-    ..add(255)
-    ..add(256)
-    ..add(257)
-    ..add(258)
-    ..add(259)
-    ..add(260)
-    ..add(261)
-    ..add(262)
-    ..add(263)
-    ..add(264)
-    ..add(265)
-    ..add(266)
-    ..add(267)
-    ..add(268)
-    ..add(269)
-    ..add(270)
-    ..add(271)
-    ..add(272)
-    ..add(273)
-    ..add(274)
-    ..add(275)
-    ..add(276)
-    ..add(277)
-    ..add(278)
-    ..add(279)
-    ..add(280)
-    ..add(281)
-    ..add(282)
-    ..add(283)
-    ..add(284)
-    ..add(285)
-    ..add(286)
-    ..add(287)
-    ..add(288)
-    ..add(289)
-    ..add(290)
-    ..add(291)
-    ..add(292)
-    ..add(293)
-    ..add(294)
-    ..add(295)
-    ..add(296)
-    ..add(297)
-    ..add(298)
-    ..add(299)
-    ..add(300)
-    ..add(301)
-    ..add(302)
-    ..add(303)
-    ..add(304)
-    ..add(305)
-    ..add(306)
-    ..add(307)
-    ..add(308)
-    ..add(309)
-    ..add(310)
-    ..add(311)
-    ..add(312)
-    ..add(313)
-    ..add(314)
-    ..add(315)
-    ..add(316)
-    ..add(317)
-    ..add(318)
-    ..add(319)
-    ..add(320)
-    ..add(321)
-    ..add(322)
-    ..add(323)
-    ..add(324)
-    ..add(325)
-    ..add(326)
-    ..add(327)
-    ..add(328)
-    ..add(329)
-    ..add(330)
-    ..add(331)
-    ..add(332)
-    ..add(333)
-    ..add(334)
-    ..add(335)
-    ..add(336)
-    ..add(337)
-    ..add(338)
-    ..add(339)
-    ..add(340)
-    ..add(341)
-    ..add(342)
-    ..add(343)
-    ..add(344)
-    ..add(345)
-    ..add(346)
-    ..add(347)
-    ..add(348)
-    ..add(349)
-    ..add(350)
-    ..add(351)
-    ..add(352)
-    ..add(353)
-    ..add(354)
-    ..add(355)
-    ..add(356)
-    ..add(357)
-    ..add(358)
-    ..add(359)
-    ..add(360)
-    ..add(361)
-    ..add(362)
-    ..add(363)
-    ..add(364)
-    ..add(365)
-    ..add(366)
-    ..add(367)
-    ..add(368)
-    ..add(369)
-    ..add(370)
-    ..add(371)
-    ..add(372)
-    ..add(373)
-    ..add(374)
-    ..add(375)
-    ..add(376)
-    ..add(377)
-    ..add(378)
-    ..add(379)
-    ..add(380)
-    ..add(381)
-    ..add(382)
-    ..add(383)
-    ..add(384)
-    ..add(385)
-    ..add(386)
-    ..add(387)
-    ..add(388)
-    ..add(389)
-    ..add(390)
-    ..add(391)
-    ..add(392)
-    ..add(393)
-    ..add(394)
-    ..add(395)
-    ..add(396)
-    ..add(397)
-    ..add(398)
-    ..add(399)
-    ..add(400)
-    ..add(401)
-    ..add(402)
-    ..add(403)
-    ..add(404)
-    ..add(405)
-    ..add(406)
-    ..add(407)
-    ..add(408)
-    ..add(409)
-    ..add(410)
-    ..add(411)
-    ..add(412)
-    ..add(413)
-    ..add(414)
-    ..add(415)
-    ..add(416)
-    ..add(417)
-    ..add(418)
-    ..add(419)
-    ..add(420)
-    ..add(421)
-    ..add(422)
-    ..add(423)
-    ..add(424)
-    ..add(425)
-    ..add(426)
-    ..add(427)
-    ..add(428)
-    ..add(429)
-    ..add(430)
-    ..add(431)
-    ..add(432)
-    ..add(433)
-    ..add(434)
-    ..add(435)
-    ..add(436)
-    ..add(437)
-    ..add(438)
-    ..add(439)
-    ..add(440)
-    ..add(441)
-    ..add(442)
-    ..add(443)
-    ..add(444)
-    ..add(445)
-    ..add(446)
-    ..add(447)
-    ..add(448)
-    ..add(449)
-    ..add(450)
-    ..add(451)
-    ..add(452)
-    ..add(453)
-    ..add(454)
-    ..add(455)
-    ..add(456)
-    ..add(457)
-    ..add(458)
-    ..add(459)
-    ..add(460)
-    ..add(461)
-    ..add(462)
-    ..add(463)
-    ..add(464)
-    ..add(465)
-    ..add(466)
-    ..add(467)
-    ..add(468)
-    ..add(469)
-    ..add(470)
-    ..add(471)
-    ..add(472)
-    ..add(473)
-    ..add(474)
-    ..add(475)
-    ..add(476)
-    ..add(477)
-    ..add(478)
-    ..add(479)
-    ..add(480)
-    ..add(481)
-    ..add(482)
-    ..add(483)
-    ..add(484)
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-    ..add(19329)
-    ..add(19330)
-    ..add(19331)
-    ..add(19332)
-    ..add(19333)
-    ..add(19334)
-    ..add(19335)
-    ..add(19336)
-    ..add(19337)
-    ..add(19338)
-    ..add(19339)
-    ..add(19340)
-    ..add(19341)
-    ..add(19342)
-    ..add(19343)
-    ..add(19344)
-    ..add(19345)
-    ..add(19346)
-    ..add(19347)
-    ..add(19348)
-    ..add(19349)
-    ..add(19350)
-    ..add(19351)
-    ..add(19352)
-    ..add(19353)
-    ..add(19354)
-    ..add(19355)
-    ..add(19356)
-    ..add(19357)
-    ..add(19358)
-    ..add(19359)
-    ..add(19360)
-    ..add(19361)
-    ..add(19362)
-    ..add(19363)
-    ..add(19364)
-    ..add(19365)
-    ..add(19366)
-    ..add(19367)
-    ..add(19368)
-    ..add(19369)
-    ..add(19370)
-    ..add(19371)
-    ..add(19372)
-    ..add(19373)
-    ..add(19374)
-    ..add(19375)
-    ..add(19376)
-    ..add(19377)
-    ..add(19378)
-    ..add(19379)
-    ..add(19380)
-    ..add(19381)
-    ..add(19382)
-    ..add(19383)
-    ..add(19384)
-    ..add(19385)
-    ..add(19386)
-    ..add(19387)
-    ..add(19388)
-    ..add(19389)
-    ..add(19390)
-    ..add(19391)
-    ..add(19392)
-    ..add(19393)
-    ..add(19394)
-    ..add(19395)
-    ..add(19396)
-    ..add(19397)
-    ..add(19398)
-    ..add(19399)
-    ..add(19400)
-    ..add(19401)
-    ..add(19402)
-    ..add(19403)
-    ..add(19404)
-    ..add(19405)
-    ..add(19406)
-    ..add(19407)
-    ..add(19408)
-    ..add(19409)
-    ..add(19410)
-    ..add(19411)
-    ..add(19412)
-    ..add(19413)
-    ..add(19414)
-    ..add(19415)
-    ..add(19416)
-    ..add(19417)
-    ..add(19418)
-    ..add(19419)
-    ..add(19420)
-    ..add(19421)
-    ..add(19422)
-    ..add(19423)
-    ..add(19424)
-    ..add(19425)
-    ..add(19426)
-    ..add(19427)
-    ..add(19428)
-    ..add(19429)
-    ..add(19430)
-    ..add(19431)
-    ..add(19432)
-    ..add(19433)
-    ..add(19434)
-    ..add(19435)
-    ..add(19436)
-    ..add(19437)
-    ..add(19438)
-    ..add(19439)
-    ..add(19440)
-    ..add(19441)
-    ..add(19442)
-    ..add(19443)
-    ..add(19444)
-    ..add(19445)
-    ..add(19446)
-    ..add(19447)
-    ..add(19448)
-    ..add(19449)
-    ..add(19450)
-    ..add(19451)
-    ..add(19452)
-    ..add(19453)
-    ..add(19454)
-    ..add(19455)
-    ..add(19456)
-    ..add(19457)
-    ..add(19458)
-    ..add(19459)
-    ..add(19460)
-    ..add(19461)
-    ..add(19462)
-    ..add(19463)
-    ..add(19464)
-    ..add(19465)
-    ..add(19466)
-    ..add(19467)
-    ..add(19468)
-    ..add(19469)
-    ..add(19470)
-    ..add(19471)
-    ..add(19472)
-    ..add(19473)
-    ..add(19474)
-    ..add(19475)
-    ..add(19476)
-    ..add(19477)
-    ..add(19478)
-    ..add(19479)
-    ..add(19480)
-    ..add(19481)
-    ..add(19482)
-    ..add(19483)
-    ..add(19484)
-    ..add(19485)
-    ..add(19486)
-    ..add(19487)
-    ..add(19488)
-    ..add(19489)
-    ..add(19490)
-    ..add(19491)
-    ..add(19492)
-    ..add(19493)
-    ..add(19494)
-    ..add(19495)
-    ..add(19496)
-    ..add(19497)
-    ..add(19498)
-    ..add(19499)
-    ..add(19500)
-    ..add(19501)
-    ..add(19502)
-    ..add(19503)
-    ..add(19504)
-    ..add(19505)
-    ..add(19506)
-    ..add(19507)
-    ..add(19508)
-    ..add(19509)
-    ..add(19510)
-    ..add(19511)
-    ..add(19512)
-    ..add(19513)
-    ..add(19514)
-    ..add(19515)
-    ..add(19516)
-    ..add(19517)
-    ..add(19518)
-    ..add(19519)
-    ..add(19520)
-    ..add(19521)
-    ..add(19522)
-    ..add(19523)
-    ..add(19524)
-    ..add(19525)
-    ..add(19526)
-    ..add(19527)
-    ..add(19528)
-    ..add(19529)
-    ..add(19530)
-    ..add(19531)
-    ..add(19532)
-    ..add(19533)
-    ..add(19534)
-    ..add(19535)
-    ..add(19536)
-    ..add(19537)
-    ..add(19538)
-    ..add(19539)
-    ..add(19540)
-    ..add(19541)
-    ..add(19542)
-    ..add(19543)
-    ..add(19544)
-    ..add(19545)
-    ..add(19546)
-    ..add(19547)
-    ..add(19548)
-    ..add(19549)
-    ..add(19550)
-    ..add(19551)
-    ..add(19552)
-    ..add(19553)
-    ..add(19554)
-    ..add(19555)
-    ..add(19556)
-    ..add(19557)
-    ..add(19558)
-    ..add(19559)
-    ..add(19560)
-    ..add(19561)
-    ..add(19562)
-    ..add(19563)
-    ..add(19564)
-    ..add(19565)
-    ..add(19566)
-    ..add(19567)
-    ..add(19568)
-    ..add(19569)
-    ..add(19570)
-    ..add(19571)
-    ..add(19572)
-    ..add(19573)
-    ..add(19574)
-    ..add(19575)
-    ..add(19576)
-    ..add(19577)
-    ..add(19578)
-    ..add(19579)
-    ..add(19580)
-    ..add(19581)
-    ..add(19582)
-    ..add(19583)
-    ..add(19584)
-    ..add(19585)
-    ..add(19586)
-    ..add(19587)
-    ..add(19588)
-    ..add(19589)
-    ..add(19590)
-    ..add(19591)
-    ..add(19592)
-    ..add(19593)
-    ..add(19594)
-    ..add(19595)
-    ..add(19596)
-    ..add(19597)
-    ..add(19598)
-    ..add(19599)
-    ..add(19600)
-    ..add(19601)
-    ..add(19602)
-    ..add(19603)
-    ..add(19604)
-    ..add(19605)
-    ..add(19606)
-    ..add(19607)
-    ..add(19608)
-    ..add(19609)
-    ..add(19610)
-    ..add(19611)
-    ..add(19612)
-    ..add(19613)
-    ..add(19614)
-    ..add(19615)
-    ..add(19616)
-    ..add(19617)
-    ..add(19618)
-    ..add(19619)
-    ..add(19620)
-    ..add(19621)
-    ..add(19622)
-    ..add(19623)
-    ..add(19624)
-    ..add(19625)
-    ..add(19626)
-    ..add(19627)
-    ..add(19628)
-    ..add(19629)
-    ..add(19630)
-    ..add(19631)
-    ..add(19632)
-    ..add(19633)
-    ..add(19634)
-    ..add(19635)
-    ..add(19636)
-    ..add(19637)
-    ..add(19638)
-    ..add(19639)
-    ..add(19640)
-    ..add(19641)
-    ..add(19642)
-    ..add(19643)
-    ..add(19644)
-    ..add(19645)
-    ..add(19646)
-    ..add(19647)
-    ..add(19648)
-    ..add(19649)
-    ..add(19650)
-    ..add(19651)
-    ..add(19652)
-    ..add(19653)
-    ..add(19654)
-    ..add(19655)
-    ..add(19656)
-    ..add(19657)
-    ..add(19658)
-    ..add(19659)
-    ..add(19660)
-    ..add(19661)
-    ..add(19662)
-    ..add(19663)
-    ..add(19664)
-    ..add(19665)
-    ..add(19666)
-    ..add(19667)
-    ..add(19668)
-    ..add(19669)
-    ..add(19670)
-    ..add(19671)
-    ..add(19672)
-    ..add(19673)
-    ..add(19674)
-    ..add(19675)
-    ..add(19676)
-    ..add(19677)
-    ..add(19678)
-    ..add(19679)
-    ..add(19680)
-    ..add(19681)
-    ..add(19682)
-    ..add(19683)
-    ..add(19684)
-    ..add(19685)
-    ..add(19686)
-    ..add(19687)
-    ..add(19688)
-    ..add(19689)
-    ..add(19690)
-    ..add(19691)
-    ..add(19692)
-    ..add(19693)
-    ..add(19694)
-    ..add(19695)
-    ..add(19696)
-    ..add(19697)
-    ..add(19698)
-    ..add(19699)
-    ..add(19700)
-    ..add(19701)
-    ..add(19702)
-    ..add(19703)
-    ..add(19704)
-    ..add(19705)
-    ..add(19706)
-    ..add(19707)
-    ..add(19708)
-    ..add(19709)
-    ..add(19710)
-    ..add(19711)
-    ..add(19712)
-    ..add(19713)
-    ..add(19714)
-    ..add(19715)
-    ..add(19716)
-    ..add(19717)
-    ..add(19718)
-    ..add(19719)
-    ..add(19720)
-    ..add(19721)
-    ..add(19722)
-    ..add(19723)
-    ..add(19724)
-    ..add(19725)
-    ..add(19726)
-    ..add(19727)
-    ..add(19728)
-    ..add(19729)
-    ..add(19730)
-    ..add(19731)
-    ..add(19732)
-    ..add(19733)
-    ..add(19734)
-    ..add(19735)
-    ..add(19736)
-    ..add(19737)
-    ..add(19738)
-    ..add(19739)
-    ..add(19740)
-    ..add(19741)
-    ..add(19742)
-    ..add(19743)
-    ..add(19744)
-    ..add(19745)
-    ..add(19746)
-    ..add(19747)
-    ..add(19748)
-    ..add(19749)
-    ..add(19750)
-    ..add(19751)
-    ..add(19752)
-    ..add(19753)
-    ..add(19754)
-    ..add(19755)
-    ..add(19756)
-    ..add(19757)
-    ..add(19758)
-    ..add(19759)
-    ..add(19760)
-    ..add(19761)
-    ..add(19762)
-    ..add(19763)
-    ..add(19764)
-    ..add(19765)
-    ..add(19766)
-    ..add(19767)
-    ..add(19768)
-    ..add(19769)
-    ..add(19770)
-    ..add(19771)
-    ..add(19772)
-    ..add(19773)
-    ..add(19774)
-    ..add(19775)
-    ..add(19776)
-    ..add(19777)
-    ..add(19778)
-    ..add(19779)
-    ..add(19780)
-    ..add(19781)
-    ..add(19782)
-    ..add(19783)
-    ..add(19784)
-    ..add(19785)
-    ..add(19786)
-    ..add(19787)
-    ..add(19788)
-    ..add(19789)
-    ..add(19790)
-    ..add(19791)
-    ..add(19792)
-    ..add(19793)
-    ..add(19794)
-    ..add(19795)
-    ..add(19796)
-    ..add(19797)
-    ..add(19798)
-    ..add(19799)
-    ..add(19800)
-    ..add(19801)
-    ..add(19802)
-    ..add(19803)
-    ..add(19804)
-    ..add(19805)
-    ..add(19806)
-    ..add(19807)
-    ..add(19808)
-    ..add(19809)
-    ..add(19810)
-    ..add(19811)
-    ..add(19812)
-    ..add(19813)
-    ..add(19814)
-    ..add(19815)
-    ..add(19816)
-    ..add(19817)
-    ..add(19818)
-    ..add(19819)
-    ..add(19820)
-    ..add(19821)
-    ..add(19822)
-    ..add(19823)
-    ..add(19824)
-    ..add(19825)
-    ..add(19826)
-    ..add(19827)
-    ..add(19828)
-    ..add(19829)
-    ..add(19830)
-    ..add(19831)
-    ..add(19832)
-    ..add(19833)
-    ..add(19834)
-    ..add(19835)
-    ..add(19836)
-    ..add(19837)
-    ..add(19838)
-    ..add(19839)
-    ..add(19840)
-    ..add(19841)
-    ..add(19842)
-    ..add(19843)
-    ..add(19844)
-    ..add(19845)
-    ..add(19846)
-    ..add(19847)
-    ..add(19848)
-    ..add(19849)
-    ..add(19850)
-    ..add(19851)
-    ..add(19852)
-    ..add(19853)
-    ..add(19854)
-    ..add(19855)
-    ..add(19856)
-    ..add(19857)
-    ..add(19858)
-    ..add(19859)
-    ..add(19860)
-    ..add(19861)
-    ..add(19862)
-    ..add(19863)
-    ..add(19864)
-    ..add(19865)
-    ..add(19866)
-    ..add(19867)
-    ..add(19868)
-    ..add(19869)
-    ..add(19870)
-    ..add(19871)
-    ..add(19872)
-    ..add(19873)
-    ..add(19874)
-    ..add(19875)
-    ..add(19876)
-    ..add(19877)
-    ..add(19878)
-    ..add(19879)
-    ..add(19880)
-    ..add(19881)
-    ..add(19882)
-    ..add(19883)
-    ..add(19884)
-    ..add(19885)
-    ..add(19886)
-    ..add(19887)
-    ..add(19888)
-    ..add(19889)
-    ..add(19890)
-    ..add(19891)
-    ..add(19892)
-    ..add(19893)
-    ..add(19894)
-    ..add(19895)
-    ..add(19896)
-    ..add(19897)
-    ..add(19898)
-    ..add(19899)
-    ..add(19900)
-    ..add(19901)
-    ..add(19902)
-    ..add(19903)
-    ..add(19904)
-    ..add(19905)
-    ..add(19906)
-    ..add(19907)
-    ..add(19908)
-    ..add(19909)
-    ..add(19910)
-    ..add(19911)
-    ..add(19912)
-    ..add(19913)
-    ..add(19914)
-    ..add(19915)
-    ..add(19916)
-    ..add(19917)
-    ..add(19918)
-    ..add(19919)
-    ..add(19920)
-    ..add(19921)
-    ..add(19922)
-    ..add(19923)
-    ..add(19924)
-    ..add(19925)
-    ..add(19926)
-    ..add(19927)
-    ..add(19928)
-    ..add(19929)
-    ..add(19930)
-    ..add(19931)
-    ..add(19932)
-    ..add(19933)
-    ..add(19934)
-    ..add(19935)
-    ..add(19936)
-    ..add(19937)
-    ..add(19938)
-    ..add(19939)
-    ..add(19940)
-    ..add(19941)
-    ..add(19942)
-    ..add(19943)
-    ..add(19944)
-    ..add(19945)
-    ..add(19946)
-    ..add(19947)
-    ..add(19948)
-    ..add(19949)
-    ..add(19950)
-    ..add(19951)
-    ..add(19952)
-    ..add(19953)
-    ..add(19954)
-    ..add(19955)
-    ..add(19956)
-    ..add(19957)
-    ..add(19958)
-    ..add(19959)
-    ..add(19960)
-    ..add(19961)
-    ..add(19962)
-    ..add(19963)
-    ..add(19964)
-    ..add(19965)
-    ..add(19966)
-    ..add(19967)
-    ..add(19968)
-    ..add(19969)
-    ..add(19970)
-    ..add(19971)
-    ..add(19972)
-    ..add(19973)
-    ..add(19974)
-    ..add(19975)
-    ..add(19976)
-    ..add(19977)
-    ..add(19978)
-    ..add(19979)
-    ..add(19980)
-    ..add(19981)
-    ..add(19982)
-    ..add(19983)
-    ..add(19984)
-    ..add(19985)
-    ..add(19986)
-    ..add(19987)
-    ..add(19988)
-    ..add(19989)
-    ..add(19990)
-    ..add(19991)
-    ..add(19992)
-    ..add(19993)
-    ..add(19994)
-    ..add(19995)
-    ..add(19996)
-    ..add(19997)
-    ..add(19998)
-    ..add(19999);
-
-  Expect.equals(ints.length, 20000);
-  for (int i = 0; i < ints.length; i++) {
-    Expect.equals(ints[i], i);
-  }
-}
diff --git a/tests/language_2/regress/regress42946_test.dart b/tests/language_2/regress/regress42946_test.dart
deleted file mode 100644
index 2092115819f..00000000000
--- a/tests/language_2/regress/regress42946_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-/// https://github.com/dart-lang/sdk/issues/42946
-void main() {
-  // fix bug in constant eval
-  const x = (2.0 == 2);
-  const a = (2.0 == 2.0);
-  const b = (0.0 == 0.0);
-  const c = (double.nan == double.nan);
-  const d = (2.0 == 1.0);
-
-  Expect.isTrue(x);
-  Expect.isTrue(a);
-  Expect.isTrue(b);
-  Expect.isFalse(c);
-  Expect.isFalse(d);
-}
diff --git a/tests/language_2/regress/regress4295001_test.dart b/tests/language_2/regress/regress4295001_test.dart
deleted file mode 100644
index d8719c9752f..00000000000
--- a/tests/language_2/regress/regress4295001_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Issue4295001Test {
-  String foo;
-  Issue4295001Test(String s) : this.foo = s {
-    var f = () => s;
-  }
-
-  static void testMain() {
-    var d = new Issue4295001Test("Hello");
-  }
-}
-
-main() {
-  Issue4295001Test.testMain();
-}
diff --git a/tests/language_2/regress/regress42954_test.dart b/tests/language_2/regress/regress42954_test.dart
deleted file mode 100644
index c201abe6039..00000000000
--- a/tests/language_2/regress/regress42954_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  Type get type => T;
-}
-
-class B extends A<B> {}
-
-void main() {
-  var first = B;
-  var second = B().type;
-
-  Expect.equals(first, second);
-  Expect.equals(second, first);
-  Expect.equals(first.hashCode, second.hashCode);
-}
diff --git a/tests/language_2/regress/regress44136_test.dart b/tests/language_2/regress/regress44136_test.dart
deleted file mode 100644
index 6607e6a43fc..00000000000
--- a/tests/language_2/regress/regress44136_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-typedef Foo = void Function<X extends dynamic>();
-typedef Bar = void Function<X extends Object>();
-
-void main() {
-  Expect.notEquals(Foo, Bar);
-}
diff --git a/tests/language_2/regress/regress45060_test.dart b/tests/language_2/regress/regress45060_test.dart
deleted file mode 100644
index e1e6e322853..00000000000
--- a/tests/language_2/regress/regress45060_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  var executor = new Executor();
-  new Command1().execute(executor);
-  executor.execute<Command1>(new Command1());
-}
-
-class Command1 extends CommandBase<Command1> {}
-
-abstract class Command {}
-
-abstract class CommandBase<TSelf extends CommandBase<TSelf>> extends Command {
-  void execute(Executor e) {
-    TSelf self = this as TSelf;
-    e.execute<TSelf>(self);
-  }
-}
-
-abstract class CommandHandler<T extends Command> {
-  void handle(T command);
-}
-
-class Executor {
-  void execute<T extends Command>(T action) {
-    testTypeEquality<CommandHandler<T>, CommandHandler<Command1>>();
-  }
-}
-
-void testTypeEquality<T1, T2>() {
-  Expect.equals(T1.hashCode, T2.hashCode);
-  Expect.equals(T1, T2);
-  Expect.identical(T1, T2);
-}
diff --git a/tests/language_2/regress/regress4515170_test.dart b/tests/language_2/regress/regress4515170_test.dart
deleted file mode 100644
index 9b8f70c0420..00000000000
--- a/tests/language_2/regress/regress4515170_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Issue4515170Test {
-  static const VAL = 3;
-  static int defaultVal([int a = VAL]) {
-    return a;
-  }
-}
-
-main() {
-  Expect.equals(3, Issue4515170Test.defaultVal());
-}
diff --git a/tests/language_2/regress/regress45428_test.dart b/tests/language_2/regress/regress45428_test.dart
deleted file mode 100644
index 115321d9f94..00000000000
--- a/tests/language_2/regress/regress45428_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-void something(List<String> l) {
-  String s = l.first;
-}
-
-void checkAndInvoke(Function f) {
-  f(["foo"]);
-  var l = <int>[1];
-  Expect.throwsTypeError(() => f(l));
-  if (f is Function(List<Never>)) {
-    Expect.throwsTypeError(() => (f as Function)(l));
-  }
-}
-
-void main() {
-  checkAndInvoke(something);
-}
diff --git a/tests/language_2/regress/regress45642_test.dart b/tests/language_2/regress/regress45642_test.dart
deleted file mode 100644
index 0ca83ea2ff2..00000000000
--- a/tests/language_2/regress/regress45642_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Utils {
-  static final foo = Foo(() {});
-}
-
-class Foo {
-  Foo(func);
-}
-
-void main() {
-  print(Utils.foo); // should print: Instance of 'Foo'
-}
diff --git a/tests/language_2/regress/regress45890_test.dart b/tests/language_2/regress/regress45890_test.dart
deleted file mode 100644
index 8dae9ebd1c2..00000000000
--- a/tests/language_2/regress/regress45890_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C {
-  T foo<T>(T value) => value;
-}
-
-void main() {
-  var c = C();
-  num Function(num) f0 = c.foo;
-  int Function(int) f1 = c.foo;
-  Expect.notEquals(f0, f1);
-}
diff --git a/tests/language_2/regress/regress46165_test.dart b/tests/language_2/regress/regress46165_test.dart
deleted file mode 100644
index f2c43c6a2de..00000000000
--- a/tests/language_2/regress/regress46165_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart=2.9
-
-void main() {
-  final l = <Object>[];
-  l.add((String x, StringBuffer y) {
-    print(x);
-  });
-}
diff --git a/tests/language_2/regress/regress46550_test.dart b/tests/language_2/regress/regress46550_test.dart
deleted file mode 100644
index 14b5ee7ff40..00000000000
--- a/tests/language_2/regress/regress46550_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart=2.9
-
-// VMOptions=--optimization_counter_threshold=100 --deterministic
-
-import "package:expect/expect.dart";
-
-typedef void test1<T extends num>();
-
-void t1<T extends int>() {
-  Expect.equals(int, T);
-}
-
-const test1 res1 = t1;
-
-main() {
-  for (int i = 0; i < 120; ++i) {
-    res1();
-  }
-}
diff --git a/tests/language_2/regress/regress46816_test.dart b/tests/language_2/regress/regress46816_test.dart
deleted file mode 100644
index 9d39bacecfd..00000000000
--- a/tests/language_2/regress/regress46816_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart=2.9
-
-import 'package:expect/expect.dart';
-
-class A<X extends num> {
-  void f<Y extends X>(Y y) {}
-}
-
-typedef Func = void Function<Y extends int>(Y);
-
-main() {
-  A<num> a = new A<int>();
-  dynamic f = (a as A<int>).f;
-  Expect.isTrue(f is Func);
-  print(f as Func);
-}
diff --git a/tests/language_2/regress/regress46867_test.dart b/tests/language_2/regress/regress46867_test.dart
deleted file mode 100644
index 750b2234243..00000000000
--- a/tests/language_2/regress/regress46867_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for https://github.com/dart-lang/sdk/issues/46867
-
-import 'package:expect/expect.dart';
-
-class Interface {
-  covariant Object x = 'from Interface';
-}
-
-mixin Mixin implements Interface {}
-
-class BaseClass {
-  static var getterCallCount = 0;
-  static var setterCallCount = 0;
-  Object get x => getterCallCount++;
-  set x(Object value) => setterCallCount++;
-}
-
-class SubClass extends BaseClass with Mixin {}
-
-void main() {
-  Expect.equals(0, BaseClass.getterCallCount);
-  SubClass().x;
-  Expect.equals(1, BaseClass.getterCallCount);
-
-  Expect.equals(0, BaseClass.setterCallCount);
-  SubClass().x = 42;
-  Expect.equals(1, BaseClass.setterCallCount);
-}
diff --git a/tests/language_2/regress/regress52243_test.dart b/tests/language_2/regress/regress52243_test.dart
deleted file mode 100644
index c9b721b5f5f..00000000000
--- a/tests/language_2/regress/regress52243_test.dart
+++ /dev/null
@@ -1,105 +0,0 @@
-// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-/// Regression test for the issue discovered by
-/// https://github.com/dart-lang/sdk/issues/52243.
-///
-/// In DDC the types [num], [int], [double], [String], and [bool] used in bounds
-/// caused an "optimization" in type tests that was incorrect when passing a
-/// subtype as the type argument.
-
-bool isWithNumBound<T extends num>(x) => x is T;
-T asWithNumBound<T extends num>(x) => x as T;
-bool isWithIntBound<T extends int>(x) => x is T;
-T asWithIntBound<T extends int>(x) => x as T;
-bool isWithDoubleBound<T extends double>(x) => x is T;
-T asWithDoubleBound<T extends double>(x) => x as T;
-bool isWithStringBound<T extends String>(x) => x is T;
-T asWithStringBound<T extends String>(x) => x as T;
-bool isWithBoolBound<T extends bool>(x) => x is T;
-T asWithBoolBound<T extends bool>(x) => x as T;
-
-main() {
-  Expect.isTrue(isWithNumBound<num>(1));
-  Expect.isTrue(isWithNumBound<int>(1));
-  // NOTE: Web backends can't determine that 1 is not a double so that test is
-  // excluded here.
-  Expect.isFalse(isWithNumBound<Null>(1));
-  Expect.isTrue(isWithNumBound<num>(1.2));
-  Expect.isFalse(isWithNumBound<int>(1.2));
-  Expect.isTrue(isWithNumBound<double>(1.2));
-  Expect.isFalse(isWithNumBound<Null>(1.2));
-  Expect.isFalse(isWithNumBound<num>(null));
-  Expect.isFalse(isWithNumBound<int>(null));
-  Expect.isFalse(isWithNumBound<double>(null));
-  Expect.isTrue(isWithNumBound<Null>(null));
-
-  Expect.equals(1, asWithNumBound<num>(1));
-  Expect.equals(1, asWithNumBound<int>(1));
-  // NOTE: Web backends can't determine that 1 is not a double so that test is
-  // excluded here.
-  Expect.throws<TypeError>(() => asWithNumBound<Null>(1));
-  Expect.equals(1.2, asWithNumBound<num>(1.2));
-  Expect.throws<TypeError>(() => asWithNumBound<int>(1.2));
-  Expect.equals(1.2, asWithNumBound<double>(1.2));
-  Expect.throws<TypeError>(() => asWithNumBound<Null>(1.2));
-  Expect.equals(null, asWithNumBound<num>(null));
-  Expect.equals(null, asWithNumBound<int>(null));
-  Expect.equals(null, asWithNumBound<double>(null));
-  Expect.equals(null, asWithNumBound<Null>(null));
-
-  Expect.isTrue(isWithIntBound<int>(1));
-  Expect.isFalse(isWithIntBound<Null>(1));
-  Expect.isFalse(isWithIntBound<int>(1.2));
-  Expect.isFalse(isWithIntBound<Null>(1.2));
-  Expect.isFalse(isWithIntBound<int>(null));
-  Expect.isTrue(isWithIntBound<Null>(null));
-
-  Expect.equals(1, asWithIntBound<int>(1));
-  Expect.throws<TypeError>(() => asWithIntBound<Null>(1));
-  Expect.throws<TypeError>(() => asWithIntBound<int>(1.2));
-  Expect.throws<TypeError>(() => asWithIntBound<Null>(1.2));
-  Expect.equals(null, asWithIntBound<int>(null));
-  Expect.equals(null, asWithIntBound<Null>(null));
-
-  // NOTE: Web backends can't determine that 1 is not a double so that test is
-  // excluded here.
-  Expect.isFalse(isWithDoubleBound<Null>(1));
-  Expect.isTrue(isWithDoubleBound<double>(1.2));
-  Expect.isFalse(isWithDoubleBound<Null>(1.2));
-  Expect.isFalse(isWithDoubleBound<double>(null));
-  Expect.isTrue(isWithDoubleBound<Null>(null));
-
-  // NOTE: Web backends can't determine that 1 is not a double so that test is
-  // excluded here.
-  Expect.throws<TypeError>(() => asWithDoubleBound<Null>(1));
-  Expect.equals(1.2, asWithDoubleBound<double>(1.2));
-  Expect.throws<TypeError>(() => asWithDoubleBound<Null>(1.2));
-  Expect.equals(null, asWithDoubleBound<double>(null));
-  Expect.equals(null, asWithDoubleBound<Null>(null));
-
-  Expect.isTrue(isWithStringBound<String>('hello'));
-  Expect.isFalse(isWithStringBound<Null>('hello'));
-  Expect.isFalse(isWithStringBound<String>(null));
-  Expect.isTrue(isWithStringBound<Null>(null));
-
-  Expect.equals('hello', asWithStringBound<String>('hello'));
-  Expect.throws<TypeError>(() => asWithStringBound<Null>('hello'));
-  Expect.equals(null, asWithStringBound<String>(null));
-  Expect.equals(null, asWithStringBound<Null>(null));
-
-  Expect.isTrue(isWithBoolBound<bool>(true));
-  Expect.isFalse(isWithBoolBound<Null>(true));
-  Expect.isFalse(isWithBoolBound<bool>(null));
-  Expect.isTrue(isWithBoolBound<Null>(null));
-
-  Expect.equals(true, asWithBoolBound<bool>(true));
-  Expect.throws<TypeError>(() => asWithBoolBound<Null>(true));
-  Expect.equals(null, asWithBoolBound<bool>(null));
-  Expect.equals(null, asWithBoolBound<Null>(null));
-}
diff --git a/tests/language_2/regress/regress65278_test.dart b/tests/language_2/regress/regress65278_test.dart
deleted file mode 100644
index 71d879d538a..00000000000
--- a/tests/language_2/regress/regress65278_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-void main() {
-  ContentTabsWidget();
-}
-
-class StatefulWidget {}
-
-class State<T> {}
-
-class WidgetsBindingObserver {}
-
-class IBase {}
-
-class ContentTabsWidget extends BaseStatefulWidget<ContentTabsState, dynamic> {}
-
-class ContentTabsState<W extends ContentTabsWidget>
-    extends BaseState<W, dynamic> {}
-
-class BaseStatefulWidget<ST extends SuperState, T>
-    extends SuperStatefulWidget<ST, T, IBase> {}
-
-class BaseState<W extends StatefulWidget, T> extends SuperState<W, T, IBase> {}
-
-class SuperStatefulWidget<S extends SuperState, T, B> extends StatefulWidget {}
-
-class SuperState<W extends StatefulWidget, T, B> extends State<W>
-    with WidgetsBindingObserver {}
diff --git a/tests/language_2/regress/regress6725_part.dart b/tests/language_2/regress/regress6725_part.dart
deleted file mode 100644
index 7ea55714d1e..00000000000
--- a/tests/language_2/regress/regress6725_part.dart
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for a crash in dart2js.
-
-part of crash_6725;
-
-class Fisk {
-  it1(x) {
-    // "key" is unresolved and caused a crash in dart2js.
-    // This is the original example the user reported.
-    for (key in x) {
-      print(key);
-    }
-  }
-
-  it2(x) {
-    // "length" is "intercepted" and handled differently from other
-    // names when an instance of list is observed.
-    for (length in x) {
-      print(length);
-    }
-  }
-
-  it3(x) {
-    // We're pretty sure that there's no "fisk" that is "intercepted".
-    for (fisk in x) {
-      print(fisk);
-    }
-  }
-}
-
-class SubFisk extends Fisk {
-  var key;
-  var length;
-  var fisk;
-}
-
-test() {
-  Fisk f = new SubFisk();
-  var m = (x) {
-    for (undeclared in x) {
-      print(undeclared);
-    }
-  };
-  if (new DateTime.now().millisecondsSinceEpoch == 42) {
-    f = null;
-    m = (x) {};
-  }
-
-  f.it1([87, 42]);
-  if (f.key != 42) {
-    throw 'f.key != 42 (${f.key})';
-  }
-
-  f.it2([87, 42]);
-  if (f.length != 42) {
-    throw 'f.length != 42 (${f.length})';
-  }
-
-  f.it3([87, 42]);
-  if (f.fisk != 42) {
-    throw 'f.fisk != 42 (${f.fisk})';
-  }
-
-  try {
-    m([87, 42]);
-    throw 'NoSuchMethodError expected';
-  } on NoSuchMethodError {
-    // Expected.
-  }
-}
diff --git a/tests/language_2/regress/regress6725_runtime_test.dart b/tests/language_2/regress/regress6725_runtime_test.dart
deleted file mode 100644
index 28aa582131e..00000000000
--- a/tests/language_2/regress/regress6725_runtime_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Regression test for a crash in dart2js.
-
-library crash_6725;
-
-
-
-main() {
-
-}
diff --git a/tests/language_2/regress/regress6725_test.dart b/tests/language_2/regress/regress6725_test.dart
deleted file mode 100644
index 3e2abe3049e..00000000000
--- a/tests/language_2/regress/regress6725_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for a crash in dart2js.
-
-library crash_6725;
-
-part 'regress6725_part.dart'; //# 01: compile-time error
-
-main() {
-  test(); //# 01: continued
-}
diff --git a/tests/language_2/regress/regress7513_test.dart b/tests/language_2/regress/regress7513_test.dart
deleted file mode 100644
index bda6041a370..00000000000
--- a/tests/language_2/regress/regress7513_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Regression test for issue 7513.
-
-foo(a, b) {
-  b[0] = 0.1;
-  return a * b[0];
-}
-
-main() {
-  var a = 0.1;
-  var b = [0.1];
-  for (var i = 0; i < 20; i++) {
-    foo(a, b);
-  }
-  Expect.approxEquals(0.01, foo(a, b));
-}
diff --git a/tests/language_2/regress/regress7525_test.dart b/tests/language_2/regress/regress7525_test.dart
deleted file mode 100644
index 8f724f05bc6..00000000000
--- a/tests/language_2/regress/regress7525_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Regression test for issue 7525.
-
-foo() {
-  var ol = <int>[2];
-  (ol as List<int>)[0];
-  int x = (ol as List<int>)[0];
-  return x;
-}
-
-main() {
-  for (int i = 0; i < 20; i++) {
-    foo();
-  }
-  Expect.equals(2, foo());
-}
diff --git a/tests/language_2/regress/regress9602_other.dart b/tests/language_2/regress/regress9602_other.dart
deleted file mode 100644
index 9d5380cad3a..00000000000
--- a/tests/language_2/regress/regress9602_other.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test case for http://dartbug.com/9602
-library issue9602_other;
-
-class M {
-  var _field;
-}
diff --git a/tests/language_2/regress/regress9602_test.dart b/tests/language_2/regress/regress9602_test.dart
deleted file mode 100644
index a658b686ab7..00000000000
--- a/tests/language_2/regress/regress9602_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test case for http://dartbug.com/9602
-library issue9602;
-
-import 'regress9602_other.dart';
-
-class C extends Object with M {}
-
-main() {
-  new C();
-}
diff --git a/tests/language_2/regress/regress9664_test.dart b/tests/language_2/regress/regress9664_test.dart
deleted file mode 100644
index 5265d17cb73..00000000000
--- a/tests/language_2/regress/regress9664_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for http://dartbug.com/9664
-
-main() {
-  while (true ? true : true) break;
-}
diff --git a/tests/language_2/regress/regress9687_test.dart b/tests/language_2/regress/regress9687_test.dart
deleted file mode 100644
index f79e3155e4e..00000000000
--- a/tests/language_2/regress/regress9687_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js code generation in checked mode. See
-// last part of https://code.google.com/p/dart/issues/detail?id=9687.
-
-import "package:expect/expect.dart";
-
-class A {
-  final finalField;
-  final otherFinalField;
-
-  A()
-      : finalField = 42,
-        otherFinalField = 54;
-
-  expectFinalField(arg1, arg2) {
-    Expect.equals(arg1, arg2);
-    Expect.equals(finalField, arg1);
-  }
-
-  expectOtherFinalField(_, arg1, arg2) {
-    Expect.equals(arg1, arg2);
-    Expect.equals(otherFinalField, arg1);
-  }
-}
-
-var array = [new A()];
-
-main() {
-  // [untypedReceiver] is made so that the compiler does not know
-  // what it is.
-  var untypedReceiver = array[0];
-
-  // [typedReceiver] is made so that the compiler knows what it is.
-  var typedReceiver = new A();
-
-  // Using [: finalField :] twice will make the compiler want to
-  // allocate one temporary for it.
-  var a = untypedReceiver.expectFinalField(
-      typedReceiver.finalField, typedReceiver.finalField);
-
-  // Having a check instruction in between two allocations of
-  // temporary variables used to trigger a bug in the compiler.
-  int b = a;
-
-  // Using [: otherFinalField :] twice will make the compiler want to
-  // allocate one temporary for it. The compiler used to assign the
-  // same temporary for [: otherFinalField :] and [: finalField :].
-  untypedReceiver.expectOtherFinalField(
-      b, typedReceiver.otherFinalField, typedReceiver.otherFinalField);
-}
diff --git a/tests/language_2/regress/regress9939_test.dart b/tests/language_2/regress/regress9939_test.dart
deleted file mode 100644
index c36b709ca1f..00000000000
--- a/tests/language_2/regress/regress9939_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// dart2js was generating incorrect code for the [A] constructor, by
-// using a temporary variable for two instructions, even though they
-// are both live at the same time.
-
-import "package:expect/expect.dart";
-
-var globalVar = [1, 2];
-
-class A {
-  final field1;
-  final field2;
-  var field3;
-
-  A(this.field1, this.field2) {
-    bool entered = false;
-    // We use [field1] twice to ensure it will have a temporary.
-    for (var a in field1) {
-      try {
-        entered = true;
-        // We use [field2] twice to ensure it will have a temporary.
-        print(field2);
-        print(field2);
-      } catch (e) {
-        // Because the catch is aborting, the SSA graph we used to
-        // generate thought that the whole try/catch was aborting, and
-        // therefore it could not reach the code after the loop.
-        throw e;
-      }
-    }
-    Expect.isTrue(entered);
-    // dart2js used to overwrite the temporary for [field1] with
-    // [field2].
-    Expect.equals(globalVar, field1);
-  }
-}
-
-main() {
-  new A(globalVar, null);
-}
diff --git a/tests/language_2/regress/regress9949_test.dart b/tests/language_2/regress/regress9949_test.dart
deleted file mode 100644
index b3d50c45ca6..00000000000
--- a/tests/language_2/regress/regress9949_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to crash in the presence of a
-// super constructor declared external.
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-
-class Crash extends StringBuffer {
-  Crash() : super();
-}
-
-void main() {
-  Crash expando = new Crash();
-  Expect.isTrue(expando is StringBuffer);
-}
diff --git a/tests/language_2/resolution/resolution_test.dart b/tests/language_2/resolution/resolution_test.dart
deleted file mode 100644
index 917765a06ff..00000000000
--- a/tests/language_2/resolution/resolution_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-int get foo => 499;
-
-class CompileError {
-  var x;
-
-  // Dart2js tried to resolve factories twice. The second time during building
-  // when it was not allowed to do so.
-  factory CompileError() {
-    return new CompileError.internal(foo);
-  }
-
-  CompileError.internal(this.x);
-}
-
-void main() {
-  Expect.equals(499, new CompileError().x);
-}
diff --git a/tests/language_2/resolution/resolve_test.dart b/tests/language_2/resolution/resolve_test.dart
deleted file mode 100644
index e3ce6ce7f0e..00000000000
--- a/tests/language_2/resolution/resolve_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing resolving of dynamic and static calls.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  static staticCall() {
-    return 4;
-  }
-
-  dynamicCall() {
-    return 5;
-  }
-
-  ovrDynamicCall() {
-    return 6;
-  }
-}
-
-class B extends A {
-  ovrDynamicCall() {
-    return -6;
-  }
-}
-
-class ResolveTest {
-  static testMain() {
-    var b = new B();
-    Expect.equals(3, (b.dynamicCall() + A.staticCall() + b.ovrDynamicCall()));
-  }
-}
-
-main() {
-  ResolveTest.testMain();
-}
diff --git a/tests/language_2/resolution/unqual_name_test.dart b/tests/language_2/resolution/unqual_name_test.dart
deleted file mode 100644
index d31af19b455..00000000000
--- a/tests/language_2/resolution/unqual_name_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to check that we can resolve unqualified identifiers
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class B {
-  B(x, y) : b = y {}
-  var b;
-
-  get_b() {
-    // Resolving unqualified instance method.
-    return really_really_get_it();
-  }
-
-  really_really_get_it() {
-    return 5;
-  }
-}
-
-class UnqualNameTest {
-  static eleven() {
-    return 11;
-  }
-
-  static testMain() {
-    var o = new B(3, 5);
-    Expect.equals(11, eleven()); // Unqualified static method call.
-    Expect.equals(5, o.get_b());
-
-    // Check whether we handle variable initializers correctly.
-    var a = 1, x, b = a + 3;
-    Expect.equals(5, a + b);
-  }
-}
-
-main() {
-  UnqualNameTest.testMain();
-}
diff --git a/tests/language_2/return/in_loop_test.dart b/tests/language_2/return/in_loop_test.dart
deleted file mode 100644
index e664dd2d806..00000000000
--- a/tests/language_2/return/in_loop_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test for a dart2js bug where the live environment was not computed
-// right.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  foo() {
-    var x = 0;
-    while (true) {
-      if (true) {
-        return 42;
-      } else {}
-      x = bar();
-    }
-  }
-
-  bar() => 1;
-}
-
-main() {
-  Expect.equals(42, new A().foo());
-}
diff --git a/tests/language_2/return/skip_expression_test.dart b/tests/language_2/return/skip_expression_test.dart
deleted file mode 100644
index 09c83cd4e8c..00000000000
--- a/tests/language_2/return/skip_expression_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class OneArg<A> {
-  OneArg<A> get foo => new OneArg<A>();
-  OneArg<A> get bar {
-    return new OneArg<A>();
-  }
-}
-
-class TwoArgs<A, B> {
-  TwoArgs<A, B> get foo => new TwoArgs<A, B>();
-  TwoArgs<A, B> get bar {
-    return new TwoArgs<A, B>();
-  }
-}
-
-void main() {
-  Expect.isTrue(new OneArg<String>().foo is OneArg);
-  Expect.isTrue(new OneArg<String>().bar is OneArg);
-  Expect.isTrue(new TwoArgs<String, int>().foo is TwoArgs);
-  Expect.isTrue(new TwoArgs<String, int>().bar is TwoArgs);
-
-  // TODO(karlklose): Please remove the return when dart2js can handle
-  // the type tests after it.
-  return;
-  Expect.isTrue(new OneArg<String>().foo is OneArg<String>);
-  Expect.isTrue(new OneArg<String>().bar is OneArg<String>);
-  Expect.isTrue(new TwoArgs<String, int>().foo is TwoArgs<String, int>);
-  Expect.isTrue(new TwoArgs<String, int>().bar is TwoArgs<String, int>);
-}
diff --git a/tests/language_2/return/this_type_test.dart b/tests/language_2/return/this_type_test.dart
deleted file mode 100644
index 95d5f0121a4..00000000000
--- a/tests/language_2/return/this_type_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Make sure the engine does not infer the wrong type for [:A.foo:].
-
-import "package:expect/expect.dart";
-
-class A {
-  foo() => this;
-}
-
-class B extends A {}
-
-main() {
-  Expect.isTrue(new B().foo() is B);
-}
diff --git a/tests/language_2/return/type_test.dart b/tests/language_2/return/type_test.dart
deleted file mode 100644
index 5f975568dc4..00000000000
--- a/tests/language_2/return/type_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-int returnString1() => 's';
-//                     ^^^
-// [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-// [cfe] A value of type 'String' can't be assigned to a variable of type 'int'.
-
-// OK to return anything from a void function with a "=>" body.
-void returnNull() => null;
-void returnString2() => 's';
-
-main() {
-  returnString1();
-  returnNull();
-  returnString2();
-}
diff --git a/tests/language_2/rewrite/assign_test.dart b/tests/language_2/rewrite/assign_test.dart
deleted file mode 100644
index 7d9c90f9512..00000000000
--- a/tests/language_2/rewrite/assign_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-bar(x, y) {}
-
-foo(b) {
-  var x, y;
-  if (b) {
-    x = 1;
-    y = 2;
-  } else {
-    x = 2;
-    y = 1;
-  }
-  bar(x, y);
-  bar(x, y);
-  return x;
-}
-
-main() {
-  Expect.equals(1, foo(true));
-  Expect.equals(2, foo(false));
-}
diff --git a/tests/language_2/rewrite/compound_assign_test.dart b/tests/language_2/rewrite/compound_assign_test.dart
deleted file mode 100644
index ca1e634e9d2..00000000000
--- a/tests/language_2/rewrite/compound_assign_test.dart
+++ /dev/null
@@ -1,133 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var global = 0;
-
-class Foo {
-  var field = 0;
-  static var staticField = 0;
-}
-
-field_compound1(obj) {
-  return obj.field = obj.field + 5;
-}
-
-field_compound2(obj) {
-  return obj.field = obj.field + 1;
-}
-
-field_compound3(obj) {
-  return obj.field = obj.field - 1;
-}
-
-field_compound4(obj) {
-  return obj.field = obj.field * 1;
-}
-
-static_compound1() {
-  return Foo.staticField = Foo.staticField + 5;
-}
-
-static_compound2() {
-  return Foo.staticField = Foo.staticField + 1;
-}
-
-static_compound3() {
-  return Foo.staticField = Foo.staticField - 1;
-}
-
-static_compound4() {
-  return Foo.staticField = Foo.staticField * 1;
-}
-
-global_compound1() {
-  return global = global + 5;
-}
-
-global_compound2() {
-  return global = global + 1;
-}
-
-global_compound3() {
-  return global = global - 1;
-}
-
-global_compound4() {
-  return global = global * 1;
-}
-
-local_compound1(x) {
-  x = x + 5;
-  if (x > 0) {
-    return x;
-  }
-  return -x;
-}
-
-local_compound2(x) {
-  x = x + 1;
-  if (x > 0) {
-    return x;
-  }
-  return -x;
-}
-
-local_compound3(x) {
-  x = x - 1;
-  if (x > 0) {
-    return x;
-  }
-  return -x;
-}
-
-local_compound4(x) {
-  x = x * 1;
-  if (x > 0) {
-    return x;
-  }
-  return -x;
-}
-
-main() {
-  var obj = new Foo();
-  Expect.equals(5, field_compound1(obj));
-  Expect.equals(5, obj.field);
-  Expect.equals(6, field_compound2(obj));
-  Expect.equals(6, obj.field);
-  Expect.equals(5, field_compound3(obj));
-  Expect.equals(5, obj.field);
-  Expect.equals(5, field_compound4(obj));
-  Expect.equals(5, obj.field);
-
-  Expect.equals(5, static_compound1());
-  Expect.equals(5, Foo.staticField);
-  Expect.equals(6, static_compound2());
-  Expect.equals(6, Foo.staticField);
-  Expect.equals(5, static_compound3());
-  Expect.equals(5, Foo.staticField);
-  Expect.equals(5, static_compound4());
-  Expect.equals(5, Foo.staticField);
-
-  Expect.equals(5, global_compound1());
-  Expect.equals(5, global);
-  Expect.equals(6, global_compound2());
-  Expect.equals(6, global);
-  Expect.equals(5, global_compound3());
-  Expect.equals(5, global);
-  Expect.equals(5, global_compound4());
-  Expect.equals(5, global);
-
-  Expect.equals(8, local_compound1(3));
-  Expect.equals(3, local_compound1(-8));
-  Expect.equals(4, local_compound2(3));
-  Expect.equals(7, local_compound2(-8));
-  Expect.equals(2, local_compound3(3));
-  Expect.equals(9, local_compound3(-8));
-  Expect.equals(3, local_compound4(3));
-  Expect.equals(8, local_compound4(-8));
-}
diff --git a/tests/language_2/rewrite/conditional_test.dart b/tests/language_2/rewrite/conditional_test.dart
deleted file mode 100644
index fb5b6b1220d..00000000000
--- a/tests/language_2/rewrite/conditional_test.dart
+++ /dev/null
@@ -1,101 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-var global = 0;
-
-bar() {
-  global += 1;
-}
-
-baz() {
-  global += 100;
-}
-
-foo(x, y, z) {
-  if ((x ? false : true) ? y : z) {
-    bar();
-    bar();
-  } else {
-    baz();
-    baz();
-  }
-}
-
-foo2(x, y, z) {
-  return (x ? false : true) ? y : z;
-}
-
-foo3(x, y, z) {
-  if (x ? (z ? false : true) : (y ? false : true)) {
-    baz();
-    baz();
-  } else {
-    bar();
-    bar();
-  }
-}
-
-main() {
-  foo(true, true, true);
-  Expect.equals(2, global);
-
-  foo(true, true, false);
-  Expect.equals(202, global);
-
-  foo(true, false, true);
-  Expect.equals(204, global);
-
-  foo(true, false, false);
-  Expect.equals(404, global);
-
-  foo(false, true, true);
-  Expect.equals(406, global);
-
-  foo(false, true, false);
-  Expect.equals(408, global);
-
-  foo(false, false, true);
-  Expect.equals(608, global);
-
-  foo(false, false, false);
-  Expect.equals(808, global);
-
-  Expect.equals(true, foo2(true, true, true));
-  Expect.equals(false, foo2(true, true, false));
-  Expect.equals(true, foo2(true, false, true));
-  Expect.equals(false, foo2(true, false, false));
-  Expect.equals(true, foo2(false, true, true));
-  Expect.equals(true, foo2(false, true, false));
-  Expect.equals(false, foo2(false, false, true));
-  Expect.equals(false, foo2(false, false, false));
-
-  global = 0;
-  foo3(true, true, true);
-  Expect.equals(2, global);
-
-  foo3(true, true, false);
-  Expect.equals(202, global);
-
-  foo3(true, false, true);
-  Expect.equals(204, global);
-
-  foo3(true, false, false);
-  Expect.equals(404, global);
-
-  foo3(false, true, true);
-  Expect.equals(406, global);
-
-  foo3(false, true, false);
-  Expect.equals(408, global);
-
-  foo3(false, false, true);
-  Expect.equals(608, global);
-
-  foo3(false, false, false);
-  Expect.equals(808, global);
-}
diff --git a/tests/language_2/rewrite/for_update_order_test.dart b/tests/language_2/rewrite/for_update_order_test.dart
deleted file mode 100644
index d6f6ffc0ed3..00000000000
--- a/tests/language_2/rewrite/for_update_order_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var counter = 0;
-var global = 0;
-
-test() {
-  ++counter;
-  return counter <= 2;
-}
-
-first() {
-  global = global + 1;
-}
-
-second() {
-  global = global * 2;
-}
-
-foo() {
-  while (test()) {
-    first();
-    second();
-  }
-}
-
-main() {
-  foo();
-  Expect.equals(6, global);
-}
diff --git a/tests/language_2/rewrite/if_empty_then_test.dart b/tests/language_2/rewrite/if_empty_then_test.dart
deleted file mode 100644
index fb7dfab3d35..00000000000
--- a/tests/language_2/rewrite/if_empty_then_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var global = 0;
-
-effect() {
-  global = 1;
-}
-
-baz(b) {
-  return b;
-}
-
-foo(b) {
-  if (b) {
-    // do nothing
-  } else {
-    effect();
-  }
-  return baz(b);
-}
-
-foo2(b) {
-  if (b) {
-    // do nothing (but implicit return may get inlined up here)
-  } else {
-    effect();
-  }
-}
-
-main() {
-  global = 0;
-  Expect.equals(true, foo(true));
-  Expect.equals(0, global);
-
-  global = 0;
-  Expect.equals(false, foo(false));
-  Expect.equals(1, global);
-
-  global = 0;
-  foo2(true);
-  Expect.equals(0, global);
-
-  global = 0;
-  foo2(false);
-  Expect.equals(1, global);
-}
diff --git a/tests/language_2/rewrite/if_return_test.dart b/tests/language_2/rewrite/if_return_test.dart
deleted file mode 100644
index 10f3af8b838..00000000000
--- a/tests/language_2/rewrite/if_return_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var global = 0;
-
-bar() {
-  global = 1;
-}
-
-baz() {
-  global = 2;
-}
-
-return_const(b) {
-  if (b) {
-    bar();
-    return 1;
-  } else {
-    baz();
-    return 1;
-  }
-}
-
-return_var(b, x) {
-  if (b) {
-    bar();
-    return x;
-  } else {
-    baz();
-    return x;
-  }
-}
-
-main() {
-  return_const(true);
-  Expect.equals(1, global);
-  return_const(false);
-  Expect.equals(2, global);
-
-  Expect.equals(4, return_var(true, 4));
-  Expect.equals(1, global);
-  Expect.equals(5, return_var(false, 5));
-  Expect.equals(2, global);
-}
diff --git a/tests/language_2/rewrite/if_swap_test.dart b/tests/language_2/rewrite/if_swap_test.dart
deleted file mode 100644
index ad4e2cf85bf..00000000000
--- a/tests/language_2/rewrite/if_swap_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var global = 0;
-
-bar() {
-  global += 1;
-}
-
-baz() {
-  global += 100;
-}
-
-foo(b) {
-  var old_backend_was_used;
-  if (b ? false : true) {
-    bar();
-    bar();
-  } else {
-    baz();
-    baz();
-  }
-}
-
-main() {
-  foo(true);
-  Expect.equals(200, global);
-
-  foo(false);
-  Expect.equals(202, global);
-}
diff --git a/tests/language_2/rewrite/implicit_this_runtime_test.dart b/tests/language_2/rewrite/implicit_this_runtime_test.dart
deleted file mode 100644
index b2afcbe925e..00000000000
--- a/tests/language_2/rewrite/implicit_this_runtime_test.dart
+++ /dev/null
@@ -1,113 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-String toplevel = 'A';
-
-class Foo {
-  String x = 'x';
-
-  easy(z) {
-
-  }
-
-  // Shadow the 'y' field in various ways
-  shadow_y_parameter(y) {
-
-  }
-
-  shadow_y_local(z) {
-    var y = z;
-
-  }
-
-  shadow_y_capturedLocal(z) {
-    var y = z;
-    foo() {
-
-    }
-    return foo();
-  }
-
-  shadow_y_closureParam(z) {
-    foo(y) {
-
-    }
-    return foo(z);
-  }
-
-  shadow_y_localInsideClosure(z) {
-    foo() {
-      var y = z;
-
-    }
-
-    return foo();
-  }
-
-  // Shadow the 'x' field in various ways
-  shadow_x_parameter(x) {
-
-  }
-
-  shadow_x_local(z) {
-    var x = z;
-
-  }
-
-  shadow_x_capturedLocal(z) {
-    var x = z;
-    foo() {
-
-    }
-    return foo();
-  }
-
-  shadow_x_closureParam(z) {
-    foo(x) {
-
-    }
-    return foo(z);
-  }
-
-  shadow_x_localInsideClosure(z) {
-    foo() {
-      var x = z;
-
-    }
-
-    return foo();
-  }
-
-  shadow_x_toplevel() {
-
-  }
-}
-
-class Sub extends Foo {
-  String y = 'y';
-  String toplevel = 'B';
-}
-
-main() {
-
-
-
-
-
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/rewrite/implicit_this_test.dart b/tests/language_2/rewrite/implicit_this_test.dart
deleted file mode 100644
index 005fe1794b8..00000000000
--- a/tests/language_2/rewrite/implicit_this_test.dart
+++ /dev/null
@@ -1,149 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-String toplevel = 'A';
-
-class Foo {
-  String x = 'x';
-
-  easy(z) {
-        return x + y + z;
-        //         ^
-        // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-        // [cfe] The getter 'y' isn't defined for the class 'Foo'.
-  }
-
-  // Shadow the 'y' field in various ways
-  shadow_y_parameter(y) {
-        return x + this.y + y;
-        //              ^
-        // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-        // [cfe] The getter 'y' isn't defined for the class 'Foo'.
-  }
-
-  shadow_y_local(z) {
-    var y = z;
-        return x + this.y + y;
-        //              ^
-        // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-        // [cfe] The getter 'y' isn't defined for the class 'Foo'.
-  }
-
-  shadow_y_capturedLocal(z) {
-    var y = z;
-    foo() {
-            return x + this.y + y;
-            //              ^
-            // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-            // [cfe] The getter 'y' isn't defined for the class 'Foo'.
-    }
-    return foo();
-  }
-
-  shadow_y_closureParam(z) {
-    foo(y) {
-            return x + this.y + y;
-            //              ^
-            // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-            // [cfe] The getter 'y' isn't defined for the class 'Foo'.
-    }
-    return foo(z);
-  }
-
-  shadow_y_localInsideClosure(z) {
-    foo() {
-      var y = z;
-            return x + this.y + y;
-            //              ^
-            // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-            // [cfe] The getter 'y' isn't defined for the class 'Foo'.
-    }
-
-    return foo();
-  }
-
-  // Shadow the 'x' field in various ways
-  shadow_x_parameter(x) {
-        return this.x + y + x;
-        //              ^
-        // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-        // [cfe] The getter 'y' isn't defined for the class 'Foo'.
-  }
-
-  shadow_x_local(z) {
-    var x = z;
-        return this.x + y + x;
-        //              ^
-        // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-        // [cfe] The getter 'y' isn't defined for the class 'Foo'.
-  }
-
-  shadow_x_capturedLocal(z) {
-    var x = z;
-    foo() {
-            return this.x + y + x;
-            //              ^
-            // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-            // [cfe] The getter 'y' isn't defined for the class 'Foo'.
-    }
-    return foo();
-  }
-
-  shadow_x_closureParam(z) {
-    foo(x) {
-            return this.x + y + x;
-            //              ^
-            // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-            // [cfe] The getter 'y' isn't defined for the class 'Foo'.
-    }
-    return foo(z);
-  }
-
-  shadow_x_localInsideClosure(z) {
-    foo() {
-      var x = z;
-            return this.x + y + x;
-            //              ^
-            // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-            // [cfe] The getter 'y' isn't defined for the class 'Foo'.
-    }
-
-    return foo();
-  }
-
-  shadow_x_toplevel() {
-        return x + this.y + toplevel + this.toplevel;
-        //              ^
-        // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-        // [cfe] The getter 'y' isn't defined for the class 'Foo'.
-        //                                  ^^^^^^^^
-        // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-        // [cfe] The getter 'toplevel' isn't defined for the class 'Foo'.
-  }
-}
-
-class Sub extends Foo {
-  String y = 'y';
-  String toplevel = 'B';
-}
-
-main() {
-    Expect.equals('xyz', new Sub().easy('z'));
-    Expect.equals('xyz', new Sub().shadow_y_parameter('z'));
-    Expect.equals('xyz', new Sub().shadow_y_local('z'));
-    Expect.equals('xyz', new Sub().shadow_y_capturedLocal('z'));
-    Expect.equals('xyz', new Sub().shadow_y_closureParam('z'));
-    Expect.equals('xyz', new Sub().shadow_y_localInsideClosure('z'));
-    Expect.equals('xyz', new Sub().shadow_x_parameter('z'));
-    Expect.equals('xyz', new Sub().shadow_x_local('z'));
-    Expect.equals('xyz', new Sub().shadow_x_capturedLocal('z'));
-    Expect.equals('xyz', new Sub().shadow_x_closureParam('z'));
-    Expect.equals('xyz', new Sub().shadow_x_localInsideClosure('z'));
-
-    Expect.equals('xyAB', new Sub().shadow_x_toplevel());
-}
diff --git a/tests/language_2/rewrite/logical_test.dart b/tests/language_2/rewrite/logical_test.dart
deleted file mode 100644
index e423b40eb99..00000000000
--- a/tests/language_2/rewrite/logical_test.dart
+++ /dev/null
@@ -1,314 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-cneg_and(x, y) {
-  if ((x && y) ? false : true) {
-    return 0;
-  } else {
-    return 1;
-  }
-}
-
-cneg_and_not(x, y) {
-  if ((x && (y ? false : true)) ? false : true) {
-    return 0;
-  } else {
-    return 1;
-  }
-}
-
-cneg_not_and(x, y) {
-  if (((x ? false : true) && y) ? false : true) {
-    return 0;
-  } else {
-    return 1;
-  }
-}
-
-cneg_not_and_not(x, y) {
-  if (((x ? false : true) && (y ? false : true)) ? false : true) {
-    return 0;
-  } else {
-    return 1;
-  }
-}
-
-cneg_or(x, y) {
-  if ((x || y) ? false : true) {
-    return 0;
-  } else {
-    return 1;
-  }
-}
-
-cneg_or_not(x, y) {
-  if ((x || (y ? false : true)) ? false : true) {
-    return 0;
-  } else {
-    return 1;
-  }
-}
-
-cneg_not_or(x, y) {
-  if (((x ? false : true) || y) ? false : true) {
-    return 0;
-  } else {
-    return 1;
-  }
-}
-
-cneg_not_or_not(x, y) {
-  if (((x ? false : true) || (y ? false : true)) ? false : true) {
-    return 0;
-  } else {
-    return 1;
-  }
-}
-
-value_tobool(x) {
-  return x ? true : false;
-}
-
-value_negate(x) {
-  return x ? false : true;
-}
-
-value_and(x, y) {
-  return x ? y ? true : false : false;
-}
-
-value_or(x, y) {
-  return x ? true : y ? true : false;
-}
-
-value_and_not(x, y) {
-  return x ? y ? false : true : false;
-}
-
-value_not_and(x, y) {
-  return x ? false : y ? true : false;
-}
-
-value_not_and_not(x, y) {
-  return x ? false : y ? false : true;
-}
-
-value_or_not(x, y) {
-  return x ? true : y ? false : true;
-}
-
-value_not_or(x, y) {
-  return x ? y ? true : false : true;
-}
-
-value_not_or_not(x, y) {
-  return x ? y ? false : true : true;
-}
-
-if_negate(x) {
-  if (x ? false : true) {
-    return 1;
-  } else {
-    return 0;
-  }
-}
-
-if_and(x, y) {
-  if (x ? y ? true : false : false) {
-    return 1;
-  } else {
-    return 0;
-  }
-}
-
-if_or(x, y) {
-  if (x ? true : y) {
-    return 1;
-  } else {
-    return 0;
-  }
-}
-
-if_and_not(x, y) {
-  if (x ? y ? false : true : false) {
-    return 1;
-  } else {
-    return 0;
-  }
-}
-
-if_not_and(x, y) {
-  if (x ? false : y) {
-    return 1;
-  } else {
-    return 0;
-  }
-}
-
-if_not_and_not(x, y) {
-  if (x ? false : y ? false : true) {
-    return 1;
-  } else {
-    return 0;
-  }
-}
-
-if_or_not(x, y) {
-  if (x ? true : y ? false : true) {
-    return 1;
-  } else {
-    return 0;
-  }
-}
-
-if_not_or(x, y) {
-  if (x ? y : true) {
-    return 1;
-  } else {
-    return 0;
-  }
-}
-
-if_not_or_not(x, y) {
-  if (x ? y ? false : true : true) {
-    return 1;
-  } else {
-    return 0;
-  }
-}
-
-main() {
-  Expect.equals(1, cneg_and(true, true));
-  Expect.equals(0, cneg_and(true, false));
-  Expect.equals(0, cneg_and(false, true));
-  Expect.equals(0, cneg_and(false, false));
-
-  Expect.equals(0, cneg_and_not(true, true));
-  Expect.equals(1, cneg_and_not(true, false));
-  Expect.equals(0, cneg_and_not(false, true));
-  Expect.equals(0, cneg_and_not(false, false));
-
-  Expect.equals(0, cneg_not_and(true, true));
-  Expect.equals(0, cneg_not_and(true, false));
-  Expect.equals(1, cneg_not_and(false, true));
-  Expect.equals(0, cneg_not_and(false, false));
-
-  Expect.equals(0, cneg_not_and_not(true, true));
-  Expect.equals(0, cneg_not_and_not(true, false));
-  Expect.equals(0, cneg_not_and_not(false, true));
-  Expect.equals(1, cneg_not_and_not(false, false));
-
-  Expect.equals(1, cneg_or(true, true));
-  Expect.equals(1, cneg_or(true, false));
-  Expect.equals(1, cneg_or(false, true));
-  Expect.equals(0, cneg_or(false, false));
-
-  Expect.equals(1, cneg_or_not(true, true));
-  Expect.equals(1, cneg_or_not(true, false));
-  Expect.equals(0, cneg_or_not(false, true));
-  Expect.equals(1, cneg_or_not(false, false));
-
-  Expect.equals(1, cneg_not_or(true, true));
-  Expect.equals(0, cneg_not_or(true, false));
-  Expect.equals(1, cneg_not_or(false, true));
-  Expect.equals(1, cneg_not_or(false, false));
-
-  Expect.equals(0, cneg_not_or_not(true, true));
-  Expect.equals(1, cneg_not_or_not(true, false));
-  Expect.equals(1, cneg_not_or_not(false, true));
-  Expect.equals(1, cneg_not_or_not(false, false));
-
-  Expect.equals(true, value_tobool(true));
-  Expect.equals(false, value_tobool(false));
-
-  Expect.equals(false, value_negate(true));
-  Expect.equals(true, value_negate(false));
-
-  Expect.equals(true, value_and(true, true));
-  Expect.equals(false, value_and(true, false));
-  Expect.equals(false, value_and(false, true));
-  Expect.equals(false, value_and(false, false));
-
-  Expect.equals(false, value_and_not(true, true));
-  Expect.equals(true, value_and_not(true, false));
-  Expect.equals(false, value_and_not(false, true));
-  Expect.equals(false, value_and_not(false, false));
-
-  Expect.equals(false, value_not_and(true, true));
-  Expect.equals(false, value_not_and(true, false));
-  Expect.equals(true, value_not_and(false, true));
-  Expect.equals(false, value_not_and(false, false));
-
-  Expect.equals(false, value_not_and_not(true, true));
-  Expect.equals(false, value_not_and_not(true, false));
-  Expect.equals(false, value_not_and_not(false, true));
-  Expect.equals(true, value_not_and_not(false, false));
-
-  Expect.equals(true, value_or(true, true));
-  Expect.equals(true, value_or(true, false));
-  Expect.equals(true, value_or(false, true));
-  Expect.equals(false, value_or(false, false));
-
-  Expect.equals(true, value_or_not(true, true));
-  Expect.equals(true, value_or_not(true, false));
-  Expect.equals(false, value_or_not(false, true));
-  Expect.equals(true, value_or_not(false, false));
-
-  Expect.equals(true, value_not_or(true, true));
-  Expect.equals(false, value_not_or(true, false));
-  Expect.equals(true, value_not_or(false, true));
-  Expect.equals(true, value_not_or(false, false));
-
-  Expect.equals(false, value_not_or_not(true, true));
-  Expect.equals(true, value_not_or_not(true, false));
-  Expect.equals(true, value_not_or_not(false, true));
-  Expect.equals(true, value_not_or_not(false, false));
-
-  Expect.equals(0, if_negate(true));
-  Expect.equals(1, if_negate(false));
-
-  Expect.equals(1, if_and(true, true));
-  Expect.equals(0, if_and(true, false));
-  Expect.equals(0, if_and(false, true));
-  Expect.equals(0, if_and(false, false));
-
-  Expect.equals(0, if_and_not(true, true));
-  Expect.equals(1, if_and_not(true, false));
-  Expect.equals(0, if_and_not(false, true));
-  Expect.equals(0, if_and_not(false, false));
-
-  Expect.equals(0, if_not_and(true, true));
-  Expect.equals(0, if_not_and(true, false));
-  Expect.equals(1, if_not_and(false, true));
-  Expect.equals(0, if_not_and(false, false));
-
-  Expect.equals(0, if_not_and_not(true, true));
-  Expect.equals(0, if_not_and_not(true, false));
-  Expect.equals(0, if_not_and_not(false, true));
-  Expect.equals(1, if_not_and_not(false, false));
-
-  Expect.equals(1, if_or(true, true));
-  Expect.equals(1, if_or(true, false));
-  Expect.equals(1, if_or(false, true));
-  Expect.equals(0, if_or(false, false));
-
-  Expect.equals(1, if_or_not(true, true));
-  Expect.equals(1, if_or_not(true, false));
-  Expect.equals(0, if_or_not(false, true));
-  Expect.equals(1, if_or_not(false, false));
-
-  Expect.equals(1, if_not_or(true, true));
-  Expect.equals(0, if_not_or(true, false));
-  Expect.equals(1, if_not_or(false, true));
-  Expect.equals(1, if_not_or(false, false));
-
-  Expect.equals(0, if_not_or_not(true, true));
-  Expect.equals(1, if_not_or_not(true, false));
-  Expect.equals(1, if_not_or_not(false, true));
-  Expect.equals(1, if_not_or_not(false, false));
-}
diff --git a/tests/language_2/rewrite/nested_if1_test.dart b/tests/language_2/rewrite/nested_if1_test.dart
deleted file mode 100644
index 8c6031e6517..00000000000
--- a/tests/language_2/rewrite/nested_if1_test.dart
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-var global;
-
-setGlobal(v) {
-  global = v;
-}
-
-check_true_true(x, y, v) {
-  if (x) {
-    if (y) {
-      setGlobal(v);
-    }
-  }
-}
-
-check_false_true(x, y, v) {
-  if (x) {} else {
-    if (y) {
-      setGlobal(v);
-    }
-  }
-}
-
-check_true_false(x, y, v) {
-  if (x) {
-    if (y) {} else {
-      setGlobal(v);
-    }
-  }
-}
-
-check_false_false(x, y, v) {
-  if (x) {} else {
-    if (y) {} else {
-      setGlobal(v);
-    }
-  }
-}
-
-main() {
-  check_true_true(true, true, 4);
-  check_true_true(false, false, 1);
-  check_true_true(false, true, 2);
-  check_true_true(true, false, 3);
-
-  Expect.equals(4, global);
-
-  check_true_false(false, false, 1);
-  check_true_false(false, true, 2);
-  check_true_false(true, false, 3);
-  check_true_false(true, true, 4);
-
-  Expect.equals(3, global);
-
-  check_false_true(false, false, 1);
-  check_false_true(false, true, 2);
-  check_false_true(true, false, 3);
-  check_false_true(true, true, 4);
-
-  Expect.equals(2, global);
-
-  check_false_false(false, false, 1);
-  check_false_false(false, true, 2);
-  check_false_false(true, false, 3);
-  check_false_false(true, true, 4);
-
-  Expect.equals(1, global);
-}
diff --git a/tests/language_2/rewrite/nested_if2_test.dart b/tests/language_2/rewrite/nested_if2_test.dart
deleted file mode 100644
index a91eb77d90c..00000000000
--- a/tests/language_2/rewrite/nested_if2_test.dart
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-check_true_true(x, y) {
-  if (x) {
-    if (y) {
-      return true;
-    }
-  }
-  return false;
-}
-
-check_false_true(x, y) {
-  if (x) {} else {
-    if (y) {
-      return true;
-    }
-  }
-  return false;
-}
-
-check_true_false(x, y) {
-  if (x) {
-    if (y) {} else {
-      return true;
-    }
-  }
-  return false;
-}
-
-check_false_false(x, y) {
-  if (x) {} else {
-    if (y) {} else {
-      return true;
-    }
-  }
-  return false;
-}
-
-main() {
-  Expect.equals(true, check_true_true(true, true));
-  Expect.equals(false, check_true_true(true, false));
-  Expect.equals(false, check_true_true(false, true));
-  Expect.equals(false, check_true_true(false, false));
-
-  Expect.equals(false, check_true_false(true, true));
-  Expect.equals(true, check_true_false(true, false));
-  Expect.equals(false, check_true_false(false, true));
-  Expect.equals(false, check_true_false(false, false));
-
-  Expect.equals(false, check_false_true(true, true));
-  Expect.equals(false, check_false_true(true, false));
-  Expect.equals(true, check_false_true(false, true));
-  Expect.equals(false, check_false_true(false, false));
-
-  Expect.equals(false, check_false_false(true, true));
-  Expect.equals(false, check_false_false(true, false));
-  Expect.equals(false, check_false_false(false, true));
-  Expect.equals(true, check_false_false(false, false));
-}
diff --git a/tests/language_2/rewrite/nested_if3_test.dart b/tests/language_2/rewrite/nested_if3_test.dart
deleted file mode 100644
index f59ea1345cc..00000000000
--- a/tests/language_2/rewrite/nested_if3_test.dart
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-baz() {}
-
-check_true_true(x, y) {
-  if (x) {
-    if (y) {
-      return true;
-    }
-  }
-  baz();
-  return false;
-}
-
-check_false_true(x, y) {
-  if (x) {} else {
-    if (y) {
-      return true;
-    }
-  }
-  baz();
-  return false;
-}
-
-check_true_false(x, y) {
-  if (x) {
-    if (y) {} else {
-      return true;
-    }
-  }
-  baz();
-  return false;
-}
-
-check_false_false(x, y) {
-  if (x) {} else {
-    if (y) {} else {
-      return true;
-    }
-  }
-  baz();
-  return false;
-}
-
-main() {
-  Expect.equals(true, check_true_true(true, true));
-  Expect.equals(false, check_true_true(true, false));
-  Expect.equals(false, check_true_true(false, true));
-  Expect.equals(false, check_true_true(false, false));
-
-  Expect.equals(false, check_true_false(true, true));
-  Expect.equals(true, check_true_false(true, false));
-  Expect.equals(false, check_true_false(false, true));
-  Expect.equals(false, check_true_false(false, false));
-
-  Expect.equals(false, check_false_true(true, true));
-  Expect.equals(false, check_false_true(true, false));
-  Expect.equals(true, check_false_true(false, true));
-  Expect.equals(false, check_false_true(false, false));
-
-  Expect.equals(false, check_false_false(true, true));
-  Expect.equals(false, check_false_false(true, false));
-  Expect.equals(false, check_false_false(false, true));
-  Expect.equals(true, check_false_false(false, false));
-}
diff --git a/tests/language_2/rewrite/swap_test.dart b/tests/language_2/rewrite/swap_test.dart
deleted file mode 100644
index 133b7fb4485..00000000000
--- a/tests/language_2/rewrite/swap_test.dart
+++ /dev/null
@@ -1,92 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-swap1(x, y, b) {
-  if (b) {
-    var t = x;
-    x = y;
-    y = t;
-  }
-  Expect.equals(2, x);
-  Expect.equals(1, y);
-}
-
-swap2(x, y, z, w, b) {
-  if (b) {
-    var t = x;
-    x = y;
-    y = t;
-
-    var q = z;
-    z = w;
-    w = q;
-  }
-  Expect.equals(2, x);
-  Expect.equals(1, y);
-  Expect.equals(4, z);
-  Expect.equals(3, w);
-}
-
-swap3(x, y, z, b) {
-  if (b) {
-    var t = x;
-    x = y;
-    y = z;
-    z = t;
-  }
-  Expect.equals(2, x);
-  Expect.equals(3, y);
-  Expect.equals(1, z);
-}
-
-swap4(x, y, z, b) {
-  if (b) {
-    var t = x;
-    x = y;
-    y = z; // swap cycle involves unused variable 'y'
-    z = t;
-  }
-  Expect.equals(2, x);
-  Expect.equals(1, z);
-}
-
-swap5(x, y, z, w, b, b2) {
-  if (b) {
-    var t = x;
-    x = y;
-    y = t;
-  }
-  if (b2) {
-    var q = z;
-    z = w;
-    w = q;
-  }
-  Expect.equals(2, x);
-  Expect.equals(1, y);
-  Expect.equals(4, z);
-  Expect.equals(3, w);
-}
-
-main() {
-  swap1(1, 2, true);
-  swap1(2, 1, false);
-
-  swap2(1, 2, 3, 4, true);
-  swap2(2, 1, 4, 3, false);
-
-  swap3(1, 2, 3, true);
-  swap3(2, 3, 1, false);
-
-  swap4(1, 2, 3, true);
-  swap4(2, 3, 1, false);
-
-  swap5(1, 2, 3, 4, true, true);
-  swap5(1, 2, 4, 3, true, false);
-  swap5(2, 1, 3, 4, false, true);
-  swap5(2, 1, 4, 3, false, false);
-}
diff --git a/tests/language_2/rewrite/variable_initializer_test.dart b/tests/language_2/rewrite/variable_initializer_test.dart
deleted file mode 100644
index d1a04a0ff56..00000000000
--- a/tests/language_2/rewrite/variable_initializer_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Foo {
-  var field = 0;
-}
-
-bar(x, y) {
-  return x * 100 + y;
-}
-
-foo(z) {
-  var x = 0, y = x;
-  if (z > 0) {
-    x = 10;
-  }
-  if (z > 10) {
-    y = 20;
-  }
-  return bar(x, y);
-}
-
-baz(z) {
-  var f = new Foo()
-    ..field = 10
-    ..field = z;
-  return f;
-}
-
-main() {
-  Expect.equals(0, foo(0));
-  Expect.equals(1000, foo(5));
-  Expect.equals(1020, foo(15));
-
-  Expect.equals(20, baz(20).field);
-  Expect.equals(30, baz(30).field);
-}
diff --git a/tests/language_2/rewrite/while_many_exits_test.dart b/tests/language_2/rewrite/while_many_exits_test.dart
deleted file mode 100644
index 9da72d55adb..00000000000
--- a/tests/language_2/rewrite/while_many_exits_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var baz_clicks = 0;
-
-baz() {
-  return ++baz_clicks;
-}
-
-var global = 0;
-
-increment_global() {
-  ++global;
-  return global <= 10;
-}
-
-foo(x, y) {
-  var n = 0;
-  while (true) {
-    baz();
-    if (n >= x) {
-      return n;
-    }
-    baz();
-    if (n >= y) {
-      return n;
-    }
-    n = n + 1;
-  }
-}
-
-bar() {
-  while (increment_global()) {
-    baz();
-  }
-  return baz();
-}
-
-main() {
-  Expect.equals(10, foo(10, 20));
-  Expect.equals(10, foo(20, 10));
-
-  baz_clicks = 0;
-  Expect.equals(11, bar());
-}
diff --git a/tests/language_2/rewrite/while_test.dart b/tests/language_2/rewrite/while_test.dart
deleted file mode 100644
index 60c2a9abe50..00000000000
--- a/tests/language_2/rewrite/while_test.dart
+++ /dev/null
@@ -1,87 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-baz() {}
-
-loop1(x) {
-  var n = 0;
-  while (n < x) {
-    n = n + 1;
-  }
-  return n;
-}
-
-loop2(x) {
-  var n = 0;
-  if (x < 100) {
-    while (n < x) {
-      n = n + 1;
-    }
-  }
-  baz();
-  return n;
-}
-
-loop3(x) {
-  var n = 0;
-  if (x < 100) {
-    while (n < x) {
-      n = n + 1;
-      baz();
-    }
-  }
-  baz();
-  return n;
-}
-
-loop4(x) {
-  var n = 0;
-  if (x < 100) {
-    while (n < x) {
-      baz();
-      n = n + 1;
-    }
-  }
-  baz();
-  return n;
-}
-
-f1(b) {
-  while (b) return 1;
-
-  return 2;
-}
-
-f2(b) {
-  while (b) {
-    return 1;
-  }
-  return 2;
-}
-
-main() {
-  Expect.equals(0, loop1(-10));
-  Expect.equals(10, loop1(10));
-
-  Expect.equals(0, loop2(-10));
-  Expect.equals(10, loop2(10));
-  Expect.equals(0, loop2(200));
-
-  Expect.equals(0, loop3(-10));
-  Expect.equals(10, loop3(10));
-  Expect.equals(0, loop3(200));
-
-  Expect.equals(0, loop4(-10));
-  Expect.equals(10, loop4(10));
-  Expect.equals(0, loop4(200));
-
-  Expect.equals(1, f1(true));
-  Expect.equals(2, f1(false));
-  Expect.equals(1, f2(true));
-  Expect.equals(2, f2(false));
-}
diff --git a/tests/language_2/script/lib.dart b/tests/language_2/script/lib.dart
deleted file mode 100644
index 605efd955d3..00000000000
--- a/tests/language_2/script/lib.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// A perfectly legal dart library for use with script and library tests.
-
-library ScriptLib;
-
-const int scriptLib = 1;
diff --git a/tests/language_2/script/script1_lib.dart b/tests/language_2/script/script1_lib.dart
deleted file mode 100644
index b83de63edae..00000000000
--- a/tests/language_2/script/script1_lib.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-int ok = 1;
diff --git a/tests/language_2/script/script1_part.dart b/tests/language_2/script/script1_part.dart
deleted file mode 100644
index ee9a8f9f856..00000000000
--- a/tests/language_2/script/script1_part.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-part of "script1_test.dart";
-
-const int scriptPart = 1;
diff --git a/tests/language_2/script/script1_test.dart b/tests/language_2/script/script1_test.dart
deleted file mode 100644
index 9c3f05bda84..00000000000
--- a/tests/language_2/script/script1_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Wrong order of import and part directives.
-
-part "script1_part.dart";
-import "script1_lib.dart";
-// [error line 10, column 1, length 6]
-// [analyzer] SYNTACTIC_ERROR.IMPORT_DIRECTIVE_AFTER_PART_DIRECTIVE
-// [cfe] Import directives must precede part directives.
-
-main() {
-  print("Should not reach here.");
-}
diff --git a/tests/language_2/script/script2_part.dart b/tests/language_2/script/script2_part.dart
deleted file mode 100644
index 3d52c097e66..00000000000
--- a/tests/language_2/script/script2_part.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library Script2Part;
-import "lib.dart";
-
-part of "script2_test.dart";
-
-const int scriptPart = 1;
diff --git a/tests/language_2/script/script2_test.dart b/tests/language_2/script/script2_test.dart
deleted file mode 100644
index 0d0138b9c7e..00000000000
--- a/tests/language_2/script/script2_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Part file has library and import directives.
-
-// TODO(rnystrom): Using a multitest instead of making this a static error test
-// because the error is reported in the part file and not in this file. Once
-// issue #44990 is fixed, this can be a static error test.
-part "script2_part.dart"; //# 01: compile-time error
-
-main() {}
diff --git a/tests/language_2/set_literals/big_set_literal_test.dart b/tests/language_2/set_literals/big_set_literal_test.dart
deleted file mode 100644
index e1721baf432..00000000000
--- a/tests/language_2/set_literals/big_set_literal_test.dart
+++ /dev/null
@@ -1,20030 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  Expect.equals(10000, intSet.length);
-  Iterator<int> intIterator = intSet.iterator;
-  for (int i = 0; i < 10000; i++) {
-    Expect.equals(true, intIterator.moveNext());
-    Expect.equals(i, intIterator.current);
-  }
-  Expect.equals(false, intIterator.moveNext());
-
-  Expect.equals(10000, stringSet.length);
-  Iterator<String> stringIterator = stringSet.iterator;
-  for (int i = 0; i < 10000; i++) {
-    Expect.equals(true, stringIterator.moveNext());
-    Expect.equals("foo_$i", stringIterator.current);
-  }
-  Expect.equals(false, stringIterator.moveNext());
-}
-
-Set<int> intSet = {
-  0,
-  1,
-  2,
-  3,
-  4,
-  5,
-  6,
-  7,
-  8,
-  9,
-  10,
-  11,
-  12,
-  13,
-  14,
-  15,
-  16,
-  17,
-  18,
-  19,
-  20,
-  21,
-  22,
-  23,
-  24,
-  25,
-  26,
-  27,
-  28,
-  29,
-  30,
-  31,
-  32,
-  33,
-  34,
-  35,
-  36,
-  37,
-  38,
-  39,
-  40,
-  41,
-  42,
-  43,
-  44,
-  45,
-  46,
-  47,
-  48,
-  49,
-  50,
-  51,
-  52,
-  53,
-  54,
-  55,
-  56,
-  57,
-  58,
-  59,
-  60,
-  61,
-  62,
-  63,
-  64,
-  65,
-  66,
-  67,
-  68,
-  69,
-  70,
-  71,
-  72,
-  73,
-  74,
-  75,
-  76,
-  77,
-  78,
-  79,
-  80,
-  81,
-  82,
-  83,
-  84,
-  85,
-  86,
-  87,
-  88,
-  89,
-  90,
-  91,
-  92,
-  93,
-  94,
-  95,
-  96,
-  97,
-  98,
-  99,
-  100,
-  101,
-  102,
-  103,
-  104,
-  105,
-  106,
-  107,
-  108,
-  109,
-  110,
-  111,
-  112,
-  113,
-  114,
-  115,
-  116,
-  117,
-  118,
-  119,
-  120,
-  121,
-  122,
-  123,
-  124,
-  125,
-  126,
-  127,
-  128,
-  129,
-  130,
-  131,
-  132,
-  133,
-  134,
-  135,
-  136,
-  137,
-  138,
-  139,
-  140,
-  141,
-  142,
-  143,
-  144,
-  145,
-  146,
-  147,
-  148,
-  149,
-  150,
-  151,
-  152,
-  153,
-  154,
-  155,
-  156,
-  157,
-  158,
-  159,
-  160,
-  161,
-  162,
-  163,
-  164,
-  165,
-  166,
-  167,
-  168,
-  169,
-  170,
-  171,
-  172,
-  173,
-  174,
-  175,
-  176,
-  177,
-  178,
-  179,
-  180,
-  181,
-  182,
-  183,
-  184,
-  185,
-  186,
-  187,
-  188,
-  189,
-  190,
-  191,
-  192,
-  193,
-  194,
-  195,
-  196,
-  197,
-  198,
-  199,
-  200,
-  201,
-  202,
-  203,
-  204,
-  205,
-  206,
-  207,
-  208,
-  209,
-  210,
-  211,
-  212,
-  213,
-  214,
-  215,
-  216,
-  217,
-  218,
-  219,
-  220,
-  221,
-  222,
-  223,
-  224,
-  225,
-  226,
-  227,
-  228,
-  229,
-  230,
-  231,
-  232,
-  233,
-  234,
-  235,
-  236,
-  237,
-  238,
-  239,
-  240,
-  241,
-  242,
-  243,
-  244,
-  245,
-  246,
-  247,
-  248,
-  249,
-  250,
-  251,
-  252,
-  253,
-  254,
-  255,
-  256,
-  257,
-  258,
-  259,
-  260,
-  261,
-  262,
-  263,
-  264,
-  265,
-  266,
-  267,
-  268,
-  269,
-  270,
-  271,
-  272,
-  273,
-  274,
-  275,
-  276,
-  277,
-  278,
-  279,
-  280,
-  281,
-  282,
-  283,
-  284,
-  285,
-  286,
-  287,
-  288,
-  289,
-  290,
-  291,
-  292,
-  293,
-  294,
-  295,
-  296,
-  297,
-  298,
-  299,
-  300,
-  301,
-  302,
-  303,
-  304,
-  305,
-  306,
-  307,
-  308,
-  309,
-  310,
-  311,
-  312,
-  313,
-  314,
-  315,
-  316,
-  317,
-  318,
-  319,
-  320,
-  321,
-  322,
-  323,
-  324,
-  325,
-  326,
-  327,
-  328,
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-  9771,
-  9772,
-  9773,
-  9774,
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-  9781,
-  9782,
-  9783,
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-  9792,
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-  9798,
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-  9800,
-  9801,
-  9802,
-  9803,
-  9804,
-  9805,
-  9806,
-  9807,
-  9808,
-  9809,
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-  9812,
-  9813,
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-  9815,
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-  9817,
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-  9851,
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-  9862,
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-  9873,
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-  9876,
-  9877,
-  9878,
-  9879,
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-  9881,
-  9882,
-  9883,
-  9884,
-  9885,
-  9886,
-  9887,
-  9888,
-  9889,
-  9890,
-  9891,
-  9892,
-  9893,
-  9894,
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-  9914,
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-  9918,
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-  9926,
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-  9992,
-  9993,
-  9994,
-  9995,
-  9996,
-  9997,
-  9998,
-  9999,
-};
-Set<String> stringSet = {
-  'foo_0',
-  'foo_1',
-  'foo_2',
-  'foo_3',
-  'foo_4',
-  'foo_5',
-  'foo_6',
-  'foo_7',
-  'foo_8',
-  'foo_9',
-  'foo_10',
-  'foo_11',
-  'foo_12',
-  'foo_13',
-  'foo_14',
-  'foo_15',
-  'foo_16',
-  'foo_17',
-  'foo_18',
-  'foo_19',
-  'foo_20',
-  'foo_21',
-  'foo_22',
-  'foo_23',
-  'foo_24',
-  'foo_25',
-  'foo_26',
-  'foo_27',
-  'foo_28',
-  'foo_29',
-  'foo_30',
-  'foo_31',
-  'foo_32',
-  'foo_33',
-  'foo_34',
-  'foo_35',
-  'foo_36',
-  'foo_37',
-  'foo_38',
-  'foo_39',
-  'foo_40',
-  'foo_41',
-  'foo_42',
-  'foo_43',
-  'foo_44',
-  'foo_45',
-  'foo_46',
-  'foo_47',
-  'foo_48',
-  'foo_49',
-  'foo_50',
-  'foo_51',
-  'foo_52',
-  'foo_53',
-  'foo_54',
-  'foo_55',
-  'foo_56',
-  'foo_57',
-  'foo_58',
-  'foo_59',
-  'foo_60',
-  'foo_61',
-  'foo_62',
-  'foo_63',
-  'foo_64',
-  'foo_65',
-  'foo_66',
-  'foo_67',
-  'foo_68',
-  'foo_69',
-  'foo_70',
-  'foo_71',
-  'foo_72',
-  'foo_73',
-  'foo_74',
-  'foo_75',
-  'foo_76',
-  'foo_77',
-  'foo_78',
-  'foo_79',
-  'foo_80',
-  'foo_81',
-  'foo_82',
-  'foo_83',
-  'foo_84',
-  'foo_85',
-  'foo_86',
-  'foo_87',
-  'foo_88',
-  'foo_89',
-  'foo_90',
-  'foo_91',
-  'foo_92',
-  'foo_93',
-  'foo_94',
-  'foo_95',
-  'foo_96',
-  'foo_97',
-  'foo_98',
-  'foo_99',
-  'foo_100',
-  'foo_101',
-  'foo_102',
-  'foo_103',
-  'foo_104',
-  'foo_105',
-  'foo_106',
-  'foo_107',
-  'foo_108',
-  'foo_109',
-  'foo_110',
-  'foo_111',
-  'foo_112',
-  'foo_113',
-  'foo_114',
-  'foo_115',
-  'foo_116',
-  'foo_117',
-  'foo_118',
-  'foo_119',
-  'foo_120',
-  'foo_121',
-  'foo_122',
-  'foo_123',
-  'foo_124',
-  'foo_125',
-  'foo_126',
-  'foo_127',
-  'foo_128',
-  'foo_129',
-  'foo_130',
-  'foo_131',
-  'foo_132',
-  'foo_133',
-  'foo_134',
-  'foo_135',
-  'foo_136',
-  'foo_137',
-  'foo_138',
-  'foo_139',
-  'foo_140',
-  'foo_141',
-  'foo_142',
-  'foo_143',
-  'foo_144',
-  'foo_145',
-  'foo_146',
-  'foo_147',
-  'foo_148',
-  'foo_149',
-  'foo_150',
-  'foo_151',
-  'foo_152',
-  'foo_153',
-  'foo_154',
-  'foo_155',
-  'foo_156',
-  'foo_157',
-  'foo_158',
-  'foo_159',
-  'foo_160',
-  'foo_161',
-  'foo_162',
-  'foo_163',
-  'foo_164',
-  'foo_165',
-  'foo_166',
-  'foo_167',
-  'foo_168',
-  'foo_169',
-  'foo_170',
-  'foo_171',
-  'foo_172',
-  'foo_173',
-  'foo_174',
-  'foo_175',
-  'foo_176',
-  'foo_177',
-  'foo_178',
-  'foo_179',
-  'foo_180',
-  'foo_181',
-  'foo_182',
-  'foo_183',
-  'foo_184',
-  'foo_185',
-  'foo_186',
-  'foo_187',
-  'foo_188',
-  'foo_189',
-  'foo_190',
-  'foo_191',
-  'foo_192',
-  'foo_193',
-  'foo_194',
-  'foo_195',
-  'foo_196',
-  'foo_197',
-  'foo_198',
-  'foo_199',
-  'foo_200',
-  'foo_201',
-  'foo_202',
-  'foo_203',
-  'foo_204',
-  'foo_205',
-  'foo_206',
-  'foo_207',
-  'foo_208',
-  'foo_209',
-  'foo_210',
-  'foo_211',
-  'foo_212',
-  'foo_213',
-  'foo_214',
-  'foo_215',
-  'foo_216',
-  'foo_217',
-  'foo_218',
-  'foo_219',
-  'foo_220',
-  'foo_221',
-  'foo_222',
-  'foo_223',
-  'foo_224',
-  'foo_225',
-  'foo_226',
-  'foo_227',
-  'foo_228',
-  'foo_229',
-  'foo_230',
-  'foo_231',
-  'foo_232',
-  'foo_233',
-  'foo_234',
-  'foo_235',
-  'foo_236',
-  'foo_237',
-  'foo_238',
-  'foo_239',
-  'foo_240',
-  'foo_241',
-  'foo_242',
-  'foo_243',
-  'foo_244',
-  'foo_245',
-  'foo_246',
-  'foo_247',
-  'foo_248',
-  'foo_249',
-  'foo_250',
-  'foo_251',
-  'foo_252',
-  'foo_253',
-  'foo_254',
-  'foo_255',
-  'foo_256',
-  'foo_257',
-  'foo_258',
-  'foo_259',
-  'foo_260',
-  'foo_261',
-  'foo_262',
-  'foo_263',
-  'foo_264',
-  'foo_265',
-  'foo_266',
-  'foo_267',
-  'foo_268',
-  'foo_269',
-  'foo_270',
-  'foo_271',
-  'foo_272',
-  'foo_273',
-  'foo_274',
-  'foo_275',
-  'foo_276',
-  'foo_277',
-  'foo_278',
-  'foo_279',
-  'foo_280',
-  'foo_281',
-  'foo_282',
-  'foo_283',
-  'foo_284',
-  'foo_285',
-  'foo_286',
-  'foo_287',
-  'foo_288',
-  'foo_289',
-  'foo_290',
-  'foo_291',
-  'foo_292',
-  'foo_293',
-  'foo_294',
-  'foo_295',
-  'foo_296',
-  'foo_297',
-  'foo_298',
-  'foo_299',
-  'foo_300',
-  'foo_301',
-  'foo_302',
-  'foo_303',
-  'foo_304',
-  'foo_305',
-  'foo_306',
-  'foo_307',
-  'foo_308',
-  'foo_309',
-  'foo_310',
-  'foo_311',
-  'foo_312',
-  'foo_313',
-  'foo_314',
-  'foo_315',
-  'foo_316',
-  'foo_317',
-  'foo_318',
-  'foo_319',
-  'foo_320',
-  'foo_321',
-  'foo_322',
-  'foo_323',
-  'foo_324',
-  'foo_325',
-  'foo_326',
-  'foo_327',
-  'foo_328',
-  'foo_329',
-  'foo_330',
-  'foo_331',
-  'foo_332',
-  'foo_333',
-  'foo_334',
-  'foo_335',
-  'foo_336',
-  'foo_337',
-  'foo_338',
-  'foo_339',
-  'foo_340',
-  'foo_341',
-  'foo_342',
-  'foo_343',
-  'foo_344',
-  'foo_345',
-  'foo_346',
-  'foo_347',
-  'foo_348',
-  'foo_349',
-  'foo_350',
-  'foo_351',
-  'foo_352',
-  'foo_353',
-  'foo_354',
-  'foo_355',
-  'foo_356',
-  'foo_357',
-  'foo_358',
-  'foo_359',
-  'foo_360',
-  'foo_361',
-  'foo_362',
-  'foo_363',
-  'foo_364',
-  'foo_365',
-  'foo_366',
-  'foo_367',
-  'foo_368',
-  'foo_369',
-  'foo_370',
-  'foo_371',
-  'foo_372',
-  'foo_373',
-  'foo_374',
-  'foo_375',
-  'foo_376',
-  'foo_377',
-  'foo_378',
-  'foo_379',
-  'foo_380',
-  'foo_381',
-  'foo_382',
-  'foo_383',
-  'foo_384',
-  'foo_385',
-  'foo_386',
-  'foo_387',
-  'foo_388',
-  'foo_389',
-  'foo_390',
-  'foo_391',
-  'foo_392',
-  'foo_393',
-  'foo_394',
-  'foo_395',
-  'foo_396',
-  'foo_397',
-  'foo_398',
-  'foo_399',
-  'foo_400',
-  'foo_401',
-  'foo_402',
-  'foo_403',
-  'foo_404',
-  'foo_405',
-  'foo_406',
-  'foo_407',
-  'foo_408',
-  'foo_409',
-  'foo_410',
-  'foo_411',
-  'foo_412',
-  'foo_413',
-  'foo_414',
-  'foo_415',
-  'foo_416',
-  'foo_417',
-  'foo_418',
-  'foo_419',
-  'foo_420',
-  'foo_421',
-  'foo_422',
-  'foo_423',
-  'foo_424',
-  'foo_425',
-  'foo_426',
-  'foo_427',
-  'foo_428',
-  'foo_429',
-  'foo_430',
-  'foo_431',
-  'foo_432',
-  'foo_433',
-  'foo_434',
-  'foo_435',
-  'foo_436',
-  'foo_437',
-  'foo_438',
-  'foo_439',
-  'foo_440',
-  'foo_441',
-  'foo_442',
-  'foo_443',
-  'foo_444',
-  'foo_445',
-  'foo_446',
-  'foo_447',
-  'foo_448',
-  'foo_449',
-  'foo_450',
-  'foo_451',
-  'foo_452',
-  'foo_453',
-  'foo_454',
-  'foo_455',
-  'foo_456',
-  'foo_457',
-  'foo_458',
-  'foo_459',
-  'foo_460',
-  'foo_461',
-  'foo_462',
-  'foo_463',
-  'foo_464',
-  'foo_465',
-  'foo_466',
-  'foo_467',
-  'foo_468',
-  'foo_469',
-  'foo_470',
-  'foo_471',
-  'foo_472',
-  'foo_473',
-  'foo_474',
-  'foo_475',
-  'foo_476',
-  'foo_477',
-  'foo_478',
-  'foo_479',
-  'foo_480',
-  'foo_481',
-  'foo_482',
-  'foo_483',
-  'foo_484',
-  'foo_485',
-  'foo_486',
-  'foo_487',
-  'foo_488',
-  'foo_489',
-  'foo_490',
-  'foo_491',
-  'foo_492',
-  'foo_493',
-  'foo_494',
-  'foo_495',
-  'foo_496',
-  'foo_497',
-  'foo_498',
-  'foo_499',
-  'foo_500',
-  'foo_501',
-  'foo_502',
-  'foo_503',
-  'foo_504',
-  'foo_505',
-  'foo_506',
-  'foo_507',
-  'foo_508',
-  'foo_509',
-  'foo_510',
-  'foo_511',
-  'foo_512',
-  'foo_513',
-  'foo_514',
-  'foo_515',
-  'foo_516',
-  'foo_517',
-  'foo_518',
-  'foo_519',
-  'foo_520',
-  'foo_521',
-  'foo_522',
-  'foo_523',
-  'foo_524',
-  'foo_525',
-  'foo_526',
-  'foo_527',
-  'foo_528',
-  'foo_529',
-  'foo_530',
-  'foo_531',
-  'foo_532',
-  'foo_533',
-  'foo_534',
-  'foo_535',
-  'foo_536',
-  'foo_537',
-  'foo_538',
-  'foo_539',
-  'foo_540',
-  'foo_541',
-  'foo_542',
-  'foo_543',
-  'foo_544',
-  'foo_545',
-  'foo_546',
-  'foo_547',
-  'foo_548',
-  'foo_549',
-  'foo_550',
-  'foo_551',
-  'foo_552',
-  'foo_553',
-  'foo_554',
-  'foo_555',
-  'foo_556',
-  'foo_557',
-  'foo_558',
-  'foo_559',
-  'foo_560',
-  'foo_561',
-  'foo_562',
-  'foo_563',
-  'foo_564',
-  'foo_565',
-  'foo_566',
-  'foo_567',
-  'foo_568',
-  'foo_569',
-  'foo_570',
-  'foo_571',
-  'foo_572',
-  'foo_573',
-  'foo_574',
-  'foo_575',
-  'foo_576',
-  'foo_577',
-  'foo_578',
-  'foo_579',
-  'foo_580',
-  'foo_581',
-  'foo_582',
-  'foo_583',
-  'foo_584',
-  'foo_585',
-  'foo_586',
-  'foo_587',
-  'foo_588',
-  'foo_589',
-  'foo_590',
-  'foo_591',
-  'foo_592',
-  'foo_593',
-  'foo_594',
-  'foo_595',
-  'foo_596',
-  'foo_597',
-  'foo_598',
-  'foo_599',
-  'foo_600',
-  'foo_601',
-  'foo_602',
-  'foo_603',
-  'foo_604',
-  'foo_605',
-  'foo_606',
-  'foo_607',
-  'foo_608',
-  'foo_609',
-  'foo_610',
-  'foo_611',
-  'foo_612',
-  'foo_613',
-  'foo_614',
-  'foo_615',
-  'foo_616',
-  'foo_617',
-  'foo_618',
-  'foo_619',
-  'foo_620',
-  'foo_621',
-  'foo_622',
-  'foo_623',
-  'foo_624',
-  'foo_625',
-  'foo_626',
-  'foo_627',
-  'foo_628',
-  'foo_629',
-  'foo_630',
-  'foo_631',
-  'foo_632',
-  'foo_633',
-  'foo_634',
-  'foo_635',
-  'foo_636',
-  'foo_637',
-  'foo_638',
-  'foo_639',
-  'foo_640',
-  'foo_641',
-  'foo_642',
-  'foo_643',
-  'foo_644',
-  'foo_645',
-  'foo_646',
-  'foo_647',
-  'foo_648',
-  'foo_649',
-  'foo_650',
-  'foo_651',
-  'foo_652',
-  'foo_653',
-  'foo_654',
-  'foo_655',
-  'foo_656',
-  'foo_657',
-  'foo_658',
-  'foo_659',
-  'foo_660',
-  'foo_661',
-  'foo_662',
-  'foo_663',
-  'foo_664',
-  'foo_665',
-  'foo_666',
-  'foo_667',
-  'foo_668',
-  'foo_669',
-  'foo_670',
-  'foo_671',
-  'foo_672',
-  'foo_673',
-  'foo_674',
-  'foo_675',
-  'foo_676',
-  'foo_677',
-  'foo_678',
-  'foo_679',
-  'foo_680',
-  'foo_681',
-  'foo_682',
-  'foo_683',
-  'foo_684',
-  'foo_685',
-  'foo_686',
-  'foo_687',
-  'foo_688',
-  'foo_689',
-  'foo_690',
-  'foo_691',
-  'foo_692',
-  'foo_693',
-  'foo_694',
-  'foo_695',
-  'foo_696',
-  'foo_697',
-  'foo_698',
-  'foo_699',
-  'foo_700',
-  'foo_701',
-  'foo_702',
-  'foo_703',
-  'foo_704',
-  'foo_705',
-  'foo_706',
-  'foo_707',
-  'foo_708',
-  'foo_709',
-  'foo_710',
-  'foo_711',
-  'foo_712',
-  'foo_713',
-  'foo_714',
-  'foo_715',
-  'foo_716',
-  'foo_717',
-  'foo_718',
-  'foo_719',
-  'foo_720',
-  'foo_721',
-  'foo_722',
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-  'foo_9739',
-  'foo_9740',
-  'foo_9741',
-  'foo_9742',
-  'foo_9743',
-  'foo_9744',
-  'foo_9745',
-  'foo_9746',
-  'foo_9747',
-  'foo_9748',
-  'foo_9749',
-  'foo_9750',
-  'foo_9751',
-  'foo_9752',
-  'foo_9753',
-  'foo_9754',
-  'foo_9755',
-  'foo_9756',
-  'foo_9757',
-  'foo_9758',
-  'foo_9759',
-  'foo_9760',
-  'foo_9761',
-  'foo_9762',
-  'foo_9763',
-  'foo_9764',
-  'foo_9765',
-  'foo_9766',
-  'foo_9767',
-  'foo_9768',
-  'foo_9769',
-  'foo_9770',
-  'foo_9771',
-  'foo_9772',
-  'foo_9773',
-  'foo_9774',
-  'foo_9775',
-  'foo_9776',
-  'foo_9777',
-  'foo_9778',
-  'foo_9779',
-  'foo_9780',
-  'foo_9781',
-  'foo_9782',
-  'foo_9783',
-  'foo_9784',
-  'foo_9785',
-  'foo_9786',
-  'foo_9787',
-  'foo_9788',
-  'foo_9789',
-  'foo_9790',
-  'foo_9791',
-  'foo_9792',
-  'foo_9793',
-  'foo_9794',
-  'foo_9795',
-  'foo_9796',
-  'foo_9797',
-  'foo_9798',
-  'foo_9799',
-  'foo_9800',
-  'foo_9801',
-  'foo_9802',
-  'foo_9803',
-  'foo_9804',
-  'foo_9805',
-  'foo_9806',
-  'foo_9807',
-  'foo_9808',
-  'foo_9809',
-  'foo_9810',
-  'foo_9811',
-  'foo_9812',
-  'foo_9813',
-  'foo_9814',
-  'foo_9815',
-  'foo_9816',
-  'foo_9817',
-  'foo_9818',
-  'foo_9819',
-  'foo_9820',
-  'foo_9821',
-  'foo_9822',
-  'foo_9823',
-  'foo_9824',
-  'foo_9825',
-  'foo_9826',
-  'foo_9827',
-  'foo_9828',
-  'foo_9829',
-  'foo_9830',
-  'foo_9831',
-  'foo_9832',
-  'foo_9833',
-  'foo_9834',
-  'foo_9835',
-  'foo_9836',
-  'foo_9837',
-  'foo_9838',
-  'foo_9839',
-  'foo_9840',
-  'foo_9841',
-  'foo_9842',
-  'foo_9843',
-  'foo_9844',
-  'foo_9845',
-  'foo_9846',
-  'foo_9847',
-  'foo_9848',
-  'foo_9849',
-  'foo_9850',
-  'foo_9851',
-  'foo_9852',
-  'foo_9853',
-  'foo_9854',
-  'foo_9855',
-  'foo_9856',
-  'foo_9857',
-  'foo_9858',
-  'foo_9859',
-  'foo_9860',
-  'foo_9861',
-  'foo_9862',
-  'foo_9863',
-  'foo_9864',
-  'foo_9865',
-  'foo_9866',
-  'foo_9867',
-  'foo_9868',
-  'foo_9869',
-  'foo_9870',
-  'foo_9871',
-  'foo_9872',
-  'foo_9873',
-  'foo_9874',
-  'foo_9875',
-  'foo_9876',
-  'foo_9877',
-  'foo_9878',
-  'foo_9879',
-  'foo_9880',
-  'foo_9881',
-  'foo_9882',
-  'foo_9883',
-  'foo_9884',
-  'foo_9885',
-  'foo_9886',
-  'foo_9887',
-  'foo_9888',
-  'foo_9889',
-  'foo_9890',
-  'foo_9891',
-  'foo_9892',
-  'foo_9893',
-  'foo_9894',
-  'foo_9895',
-  'foo_9896',
-  'foo_9897',
-  'foo_9898',
-  'foo_9899',
-  'foo_9900',
-  'foo_9901',
-  'foo_9902',
-  'foo_9903',
-  'foo_9904',
-  'foo_9905',
-  'foo_9906',
-  'foo_9907',
-  'foo_9908',
-  'foo_9909',
-  'foo_9910',
-  'foo_9911',
-  'foo_9912',
-  'foo_9913',
-  'foo_9914',
-  'foo_9915',
-  'foo_9916',
-  'foo_9917',
-  'foo_9918',
-  'foo_9919',
-  'foo_9920',
-  'foo_9921',
-  'foo_9922',
-  'foo_9923',
-  'foo_9924',
-  'foo_9925',
-  'foo_9926',
-  'foo_9927',
-  'foo_9928',
-  'foo_9929',
-  'foo_9930',
-  'foo_9931',
-  'foo_9932',
-  'foo_9933',
-  'foo_9934',
-  'foo_9935',
-  'foo_9936',
-  'foo_9937',
-  'foo_9938',
-  'foo_9939',
-  'foo_9940',
-  'foo_9941',
-  'foo_9942',
-  'foo_9943',
-  'foo_9944',
-  'foo_9945',
-  'foo_9946',
-  'foo_9947',
-  'foo_9948',
-  'foo_9949',
-  'foo_9950',
-  'foo_9951',
-  'foo_9952',
-  'foo_9953',
-  'foo_9954',
-  'foo_9955',
-  'foo_9956',
-  'foo_9957',
-  'foo_9958',
-  'foo_9959',
-  'foo_9960',
-  'foo_9961',
-  'foo_9962',
-  'foo_9963',
-  'foo_9964',
-  'foo_9965',
-  'foo_9966',
-  'foo_9967',
-  'foo_9968',
-  'foo_9969',
-  'foo_9970',
-  'foo_9971',
-  'foo_9972',
-  'foo_9973',
-  'foo_9974',
-  'foo_9975',
-  'foo_9976',
-  'foo_9977',
-  'foo_9978',
-  'foo_9979',
-  'foo_9980',
-  'foo_9981',
-  'foo_9982',
-  'foo_9983',
-  'foo_9984',
-  'foo_9985',
-  'foo_9986',
-  'foo_9987',
-  'foo_9988',
-  'foo_9989',
-  'foo_9990',
-  'foo_9991',
-  'foo_9992',
-  'foo_9993',
-  'foo_9994',
-  'foo_9995',
-  'foo_9996',
-  'foo_9997',
-  'foo_9998',
-  'foo_9999',
-};
diff --git a/tests/language_2/set_literals/const_big_set_literal_test.dart b/tests/language_2/set_literals/const_big_set_literal_test.dart
deleted file mode 100644
index 9a4a9b053a6..00000000000
--- a/tests/language_2/set_literals/const_big_set_literal_test.dart
+++ /dev/null
@@ -1,20030 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  Expect.equals(10000, intSet.length);
-  Iterator<int> intIterator = intSet.iterator;
-  for (int i = 0; i < 10000; i++) {
-    Expect.equals(true, intIterator.moveNext());
-    Expect.equals(i, intIterator.current);
-  }
-  Expect.equals(false, intIterator.moveNext());
-
-  Expect.equals(10000, stringSet.length);
-  Iterator<String> stringIterator = stringSet.iterator;
-  for (int i = 0; i < 10000; i++) {
-    Expect.equals(true, stringIterator.moveNext());
-    Expect.equals("foo_$i", stringIterator.current);
-  }
-  Expect.equals(false, stringIterator.moveNext());
-}
-
-const Set<int> intSet = {
-  0,
-  1,
-  2,
-  3,
-  4,
-  5,
-  6,
-  7,
-  8,
-  9,
-  10,
-  11,
-  12,
-  13,
-  14,
-  15,
-  16,
-  17,
-  18,
-  19,
-  20,
-  21,
-  22,
-  23,
-  24,
-  25,
-  26,
-  27,
-  28,
-  29,
-  30,
-  31,
-  32,
-  33,
-  34,
-  35,
-  36,
-  37,
-  38,
-  39,
-  40,
-  41,
-  42,
-  43,
-  44,
-  45,
-  46,
-  47,
-  48,
-  49,
-  50,
-  51,
-  52,
-  53,
-  54,
-  55,
-  56,
-  57,
-  58,
-  59,
-  60,
-  61,
-  62,
-  63,
-  64,
-  65,
-  66,
-  67,
-  68,
-  69,
-  70,
-  71,
-  72,
-  73,
-  74,
-  75,
-  76,
-  77,
-  78,
-  79,
-  80,
-  81,
-  82,
-  83,
-  84,
-  85,
-  86,
-  87,
-  88,
-  89,
-  90,
-  91,
-  92,
-  93,
-  94,
-  95,
-  96,
-  97,
-  98,
-  99,
-  100,
-  101,
-  102,
-  103,
-  104,
-  105,
-  106,
-  107,
-  108,
-  109,
-  110,
-  111,
-  112,
-  113,
-  114,
-  115,
-  116,
-  117,
-  118,
-  119,
-  120,
-  121,
-  122,
-  123,
-  124,
-  125,
-  126,
-  127,
-  128,
-  129,
-  130,
-  131,
-  132,
-  133,
-  134,
-  135,
-  136,
-  137,
-  138,
-  139,
-  140,
-  141,
-  142,
-  143,
-  144,
-  145,
-  146,
-  147,
-  148,
-  149,
-  150,
-  151,
-  152,
-  153,
-  154,
-  155,
-  156,
-  157,
-  158,
-  159,
-  160,
-  161,
-  162,
-  163,
-  164,
-  165,
-  166,
-  167,
-  168,
-  169,
-  170,
-  171,
-  172,
-  173,
-  174,
-  175,
-  176,
-  177,
-  178,
-  179,
-  180,
-  181,
-  182,
-  183,
-  184,
-  185,
-  186,
-  187,
-  188,
-  189,
-  190,
-  191,
-  192,
-  193,
-  194,
-  195,
-  196,
-  197,
-  198,
-  199,
-  200,
-  201,
-  202,
-  203,
-  204,
-  205,
-  206,
-  207,
-  208,
-  209,
-  210,
-  211,
-  212,
-  213,
-  214,
-  215,
-  216,
-  217,
-  218,
-  219,
-  220,
-  221,
-  222,
-  223,
-  224,
-  225,
-  226,
-  227,
-  228,
-  229,
-  230,
-  231,
-  232,
-  233,
-  234,
-  235,
-  236,
-  237,
-  238,
-  239,
-  240,
-  241,
-  242,
-  243,
-  244,
-  245,
-  246,
-  247,
-  248,
-  249,
-  250,
-  251,
-  252,
-  253,
-  254,
-  255,
-  256,
-  257,
-  258,
-  259,
-  260,
-  261,
-  262,
-  263,
-  264,
-  265,
-  266,
-  267,
-  268,
-  269,
-  270,
-  271,
-  272,
-  273,
-  274,
-  275,
-  276,
-  277,
-  278,
-  279,
-  280,
-  281,
-  282,
-  283,
-  284,
-  285,
-  286,
-  287,
-  288,
-  289,
-  290,
-  291,
-  292,
-  293,
-  294,
-  295,
-  296,
-  297,
-  298,
-  299,
-  300,
-  301,
-  302,
-  303,
-  304,
-  305,
-  306,
-  307,
-  308,
-  309,
-  310,
-  311,
-  312,
-  313,
-  314,
-  315,
-  316,
-  317,
-  318,
-  319,
-  320,
-  321,
-  322,
-  323,
-  324,
-  325,
-  326,
-  327,
-  328,
-  329,
-  330,
-  331,
-  332,
-  333,
-  334,
-  335,
-  336,
-  337,
-  338,
-  339,
-  340,
-  341,
-  342,
-  343,
-  344,
-  345,
-  346,
-  347,
-  348,
-  349,
-  350,
-  351,
-  352,
-  353,
-  354,
-  355,
-  356,
-  357,
-  358,
-  359,
-  360,
-  361,
-  362,
-  363,
-  364,
-  365,
-  366,
-  367,
-  368,
-  369,
-  370,
-  371,
-  372,
-  373,
-  374,
-  375,
-  376,
-  377,
-  378,
-  379,
-  380,
-  381,
-  382,
-  383,
-  384,
-  385,
-  386,
-  387,
-  388,
-  389,
-  390,
-  391,
-  392,
-  393,
-  394,
-  395,
-  396,
-  397,
-  398,
-  399,
-  400,
-  401,
-  402,
-  403,
-  404,
-  405,
-  406,
-  407,
-  408,
-  409,
-  410,
-  411,
-  412,
-  413,
-  414,
-  415,
-  416,
-  417,
-  418,
-  419,
-  420,
-  421,
-  422,
-  423,
-  424,
-  425,
-  426,
-  427,
-  428,
-  429,
-  430,
-  431,
-  432,
-  433,
-  434,
-  435,
-  436,
-  437,
-  438,
-  439,
-  440,
-  441,
-  442,
-  443,
-  444,
-  445,
-  446,
-  447,
-  448,
-  449,
-  450,
-  451,
-  452,
-  453,
-  454,
-  455,
-  456,
-  457,
-  458,
-  459,
-  460,
-  461,
-  462,
-  463,
-  464,
-  465,
-  466,
-  467,
-  468,
-  469,
-  470,
-  471,
-  472,
-  473,
-  474,
-  475,
-  476,
-  477,
-  478,
-  479,
-  480,
-  481,
-  482,
-  483,
-  484,
-  485,
-  486,
-  487,
-  488,
-  489,
-  490,
-  491,
-  492,
-  493,
-  494,
-  495,
-  496,
-  497,
-  498,
-  499,
-  500,
-  501,
-  502,
-  503,
-  504,
-  505,
-  506,
-  507,
-  508,
-  509,
-  510,
-  511,
-  512,
-  513,
-  514,
-  515,
-  516,
-  517,
-  518,
-  519,
-  520,
-  521,
-  522,
-  523,
-  524,
-  525,
-  526,
-  527,
-  528,
-  529,
-  530,
-  531,
-  532,
-  533,
-  534,
-  535,
-  536,
-  537,
-  538,
-  539,
-  540,
-  541,
-  542,
-  543,
-  544,
-  545,
-  546,
-  547,
-  548,
-  549,
-  550,
-  551,
-  552,
-  553,
-  554,
-  555,
-  556,
-  557,
-  558,
-  559,
-  560,
-  561,
-  562,
-  563,
-  564,
-  565,
-  566,
-  567,
-  568,
-  569,
-  570,
-  571,
-  572,
-  573,
-  574,
-  575,
-  576,
-  577,
-  578,
-  579,
-  580,
-  581,
-  582,
-  583,
-  584,
-  585,
-  586,
-  587,
-  588,
-  589,
-  590,
-  591,
-  592,
-  593,
-  594,
-  595,
-  596,
-  597,
-  598,
-  599,
-  600,
-  601,
-  602,
-  603,
-  604,
-  605,
-  606,
-  607,
-  608,
-  609,
-  610,
-  611,
-  612,
-  613,
-  614,
-  615,
-  616,
-  617,
-  618,
-  619,
-  620,
-  621,
-  622,
-  623,
-  624,
-  625,
-  626,
-  627,
-  628,
-  629,
-  630,
-  631,
-  632,
-  633,
-  634,
-  635,
-  636,
-  637,
-  638,
-  639,
-  640,
-  641,
-  642,
-  643,
-  644,
-  645,
-  646,
-  647,
-  648,
-  649,
-  650,
-  651,
-  652,
-  653,
-  654,
-  655,
-  656,
-  657,
-  658,
-  659,
-  660,
-  661,
-  662,
-  663,
-  664,
-  665,
-  666,
-  667,
-  668,
-  669,
-  670,
-  671,
-  672,
-  673,
-  674,
-  675,
-  676,
-  677,
-  678,
-  679,
-  680,
-  681,
-  682,
-  683,
-  684,
-  685,
-  686,
-  687,
-  688,
-  689,
-  690,
-  691,
-  692,
-  693,
-  694,
-  695,
-  696,
-  697,
-  698,
-  699,
-  700,
-  701,
-  702,
-  703,
-  704,
-  705,
-  706,
-  707,
-  708,
-  709,
-  710,
-  711,
-  712,
-  713,
-  714,
-  715,
-  716,
-  717,
-  718,
-  719,
-  720,
-  721,
-  722,
-  723,
-  724,
-  725,
-  726,
-  727,
-  728,
-  729,
-  730,
-  731,
-  732,
-  733,
-  734,
-  735,
-  736,
-  737,
-  738,
-  739,
-  740,
-  741,
-  742,
-  743,
-  744,
-  745,
-  746,
-  747,
-  748,
-  749,
-  750,
-  751,
-  752,
-  753,
-  754,
-  755,
-  756,
-  757,
-  758,
-  759,
-  760,
-  761,
-  762,
-  763,
-  764,
-  765,
-  766,
-  767,
-  768,
-  769,
-  770,
-  771,
-  772,
-  773,
-  774,
-  775,
-  776,
-  777,
-  778,
-  779,
-  780,
-  781,
-  782,
-  783,
-  784,
-  785,
-  786,
-  787,
-  788,
-  789,
-  790,
-  791,
-  792,
-  793,
-  794,
-  795,
-  796,
-  797,
-  798,
-  799,
-  800,
-  801,
-  802,
-  803,
-  804,
-  805,
-  806,
-  807,
-  808,
-  809,
-  810,
-  811,
-  812,
-  813,
-  814,
-  815,
-  816,
-  817,
-  818,
-  819,
-  820,
-  821,
-  822,
-  823,
-  824,
-  825,
-  826,
-  827,
-  828,
-  829,
-  830,
-  831,
-  832,
-  833,
-  834,
-  835,
-  836,
-  837,
-  838,
-  839,
-  840,
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-  9774,
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-  9779,
-  9780,
-  9781,
-  9782,
-  9783,
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-  9788,
-  9789,
-  9790,
-  9791,
-  9792,
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-  9876,
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-  9884,
-  9885,
-  9886,
-  9887,
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-  9889,
-  9890,
-  9891,
-  9892,
-  9893,
-  9894,
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-  9897,
-  9898,
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-  9912,
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-  9914,
-  9915,
-  9916,
-  9917,
-  9918,
-  9919,
-  9920,
-  9921,
-  9922,
-  9923,
-  9924,
-  9925,
-  9926,
-  9927,
-  9928,
-  9929,
-  9930,
-  9931,
-  9932,
-  9933,
-  9934,
-  9935,
-  9936,
-  9937,
-  9938,
-  9939,
-  9940,
-  9941,
-  9942,
-  9943,
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-  9950,
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-  9953,
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-  9956,
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-  9958,
-  9959,
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-  9961,
-  9962,
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-  9965,
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-  9967,
-  9968,
-  9969,
-  9970,
-  9971,
-  9972,
-  9973,
-  9974,
-  9975,
-  9976,
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-  9978,
-  9979,
-  9980,
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-  9983,
-  9984,
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-  9987,
-  9988,
-  9989,
-  9990,
-  9991,
-  9992,
-  9993,
-  9994,
-  9995,
-  9996,
-  9997,
-  9998,
-  9999,
-};
-const Set<String> stringSet = {
-  'foo_0',
-  'foo_1',
-  'foo_2',
-  'foo_3',
-  'foo_4',
-  'foo_5',
-  'foo_6',
-  'foo_7',
-  'foo_8',
-  'foo_9',
-  'foo_10',
-  'foo_11',
-  'foo_12',
-  'foo_13',
-  'foo_14',
-  'foo_15',
-  'foo_16',
-  'foo_17',
-  'foo_18',
-  'foo_19',
-  'foo_20',
-  'foo_21',
-  'foo_22',
-  'foo_23',
-  'foo_24',
-  'foo_25',
-  'foo_26',
-  'foo_27',
-  'foo_28',
-  'foo_29',
-  'foo_30',
-  'foo_31',
-  'foo_32',
-  'foo_33',
-  'foo_34',
-  'foo_35',
-  'foo_36',
-  'foo_37',
-  'foo_38',
-  'foo_39',
-  'foo_40',
-  'foo_41',
-  'foo_42',
-  'foo_43',
-  'foo_44',
-  'foo_45',
-  'foo_46',
-  'foo_47',
-  'foo_48',
-  'foo_49',
-  'foo_50',
-  'foo_51',
-  'foo_52',
-  'foo_53',
-  'foo_54',
-  'foo_55',
-  'foo_56',
-  'foo_57',
-  'foo_58',
-  'foo_59',
-  'foo_60',
-  'foo_61',
-  'foo_62',
-  'foo_63',
-  'foo_64',
-  'foo_65',
-  'foo_66',
-  'foo_67',
-  'foo_68',
-  'foo_69',
-  'foo_70',
-  'foo_71',
-  'foo_72',
-  'foo_73',
-  'foo_74',
-  'foo_75',
-  'foo_76',
-  'foo_77',
-  'foo_78',
-  'foo_79',
-  'foo_80',
-  'foo_81',
-  'foo_82',
-  'foo_83',
-  'foo_84',
-  'foo_85',
-  'foo_86',
-  'foo_87',
-  'foo_88',
-  'foo_89',
-  'foo_90',
-  'foo_91',
-  'foo_92',
-  'foo_93',
-  'foo_94',
-  'foo_95',
-  'foo_96',
-  'foo_97',
-  'foo_98',
-  'foo_99',
-  'foo_100',
-  'foo_101',
-  'foo_102',
-  'foo_103',
-  'foo_104',
-  'foo_105',
-  'foo_106',
-  'foo_107',
-  'foo_108',
-  'foo_109',
-  'foo_110',
-  'foo_111',
-  'foo_112',
-  'foo_113',
-  'foo_114',
-  'foo_115',
-  'foo_116',
-  'foo_117',
-  'foo_118',
-  'foo_119',
-  'foo_120',
-  'foo_121',
-  'foo_122',
-  'foo_123',
-  'foo_124',
-  'foo_125',
-  'foo_126',
-  'foo_127',
-  'foo_128',
-  'foo_129',
-  'foo_130',
-  'foo_131',
-  'foo_132',
-  'foo_133',
-  'foo_134',
-  'foo_135',
-  'foo_136',
-  'foo_137',
-  'foo_138',
-  'foo_139',
-  'foo_140',
-  'foo_141',
-  'foo_142',
-  'foo_143',
-  'foo_144',
-  'foo_145',
-  'foo_146',
-  'foo_147',
-  'foo_148',
-  'foo_149',
-  'foo_150',
-  'foo_151',
-  'foo_152',
-  'foo_153',
-  'foo_154',
-  'foo_155',
-  'foo_156',
-  'foo_157',
-  'foo_158',
-  'foo_159',
-  'foo_160',
-  'foo_161',
-  'foo_162',
-  'foo_163',
-  'foo_164',
-  'foo_165',
-  'foo_166',
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-  'foo_9234',
-  'foo_9235',
-  'foo_9236',
-  'foo_9237',
-  'foo_9238',
-  'foo_9239',
-  'foo_9240',
-  'foo_9241',
-  'foo_9242',
-  'foo_9243',
-  'foo_9244',
-  'foo_9245',
-  'foo_9246',
-  'foo_9247',
-  'foo_9248',
-  'foo_9249',
-  'foo_9250',
-  'foo_9251',
-  'foo_9252',
-  'foo_9253',
-  'foo_9254',
-  'foo_9255',
-  'foo_9256',
-  'foo_9257',
-  'foo_9258',
-  'foo_9259',
-  'foo_9260',
-  'foo_9261',
-  'foo_9262',
-  'foo_9263',
-  'foo_9264',
-  'foo_9265',
-  'foo_9266',
-  'foo_9267',
-  'foo_9268',
-  'foo_9269',
-  'foo_9270',
-  'foo_9271',
-  'foo_9272',
-  'foo_9273',
-  'foo_9274',
-  'foo_9275',
-  'foo_9276',
-  'foo_9277',
-  'foo_9278',
-  'foo_9279',
-  'foo_9280',
-  'foo_9281',
-  'foo_9282',
-  'foo_9283',
-  'foo_9284',
-  'foo_9285',
-  'foo_9286',
-  'foo_9287',
-  'foo_9288',
-  'foo_9289',
-  'foo_9290',
-  'foo_9291',
-  'foo_9292',
-  'foo_9293',
-  'foo_9294',
-  'foo_9295',
-  'foo_9296',
-  'foo_9297',
-  'foo_9298',
-  'foo_9299',
-  'foo_9300',
-  'foo_9301',
-  'foo_9302',
-  'foo_9303',
-  'foo_9304',
-  'foo_9305',
-  'foo_9306',
-  'foo_9307',
-  'foo_9308',
-  'foo_9309',
-  'foo_9310',
-  'foo_9311',
-  'foo_9312',
-  'foo_9313',
-  'foo_9314',
-  'foo_9315',
-  'foo_9316',
-  'foo_9317',
-  'foo_9318',
-  'foo_9319',
-  'foo_9320',
-  'foo_9321',
-  'foo_9322',
-  'foo_9323',
-  'foo_9324',
-  'foo_9325',
-  'foo_9326',
-  'foo_9327',
-  'foo_9328',
-  'foo_9329',
-  'foo_9330',
-  'foo_9331',
-  'foo_9332',
-  'foo_9333',
-  'foo_9334',
-  'foo_9335',
-  'foo_9336',
-  'foo_9337',
-  'foo_9338',
-  'foo_9339',
-  'foo_9340',
-  'foo_9341',
-  'foo_9342',
-  'foo_9343',
-  'foo_9344',
-  'foo_9345',
-  'foo_9346',
-  'foo_9347',
-  'foo_9348',
-  'foo_9349',
-  'foo_9350',
-  'foo_9351',
-  'foo_9352',
-  'foo_9353',
-  'foo_9354',
-  'foo_9355',
-  'foo_9356',
-  'foo_9357',
-  'foo_9358',
-  'foo_9359',
-  'foo_9360',
-  'foo_9361',
-  'foo_9362',
-  'foo_9363',
-  'foo_9364',
-  'foo_9365',
-  'foo_9366',
-  'foo_9367',
-  'foo_9368',
-  'foo_9369',
-  'foo_9370',
-  'foo_9371',
-  'foo_9372',
-  'foo_9373',
-  'foo_9374',
-  'foo_9375',
-  'foo_9376',
-  'foo_9377',
-  'foo_9378',
-  'foo_9379',
-  'foo_9380',
-  'foo_9381',
-  'foo_9382',
-  'foo_9383',
-  'foo_9384',
-  'foo_9385',
-  'foo_9386',
-  'foo_9387',
-  'foo_9388',
-  'foo_9389',
-  'foo_9390',
-  'foo_9391',
-  'foo_9392',
-  'foo_9393',
-  'foo_9394',
-  'foo_9395',
-  'foo_9396',
-  'foo_9397',
-  'foo_9398',
-  'foo_9399',
-  'foo_9400',
-  'foo_9401',
-  'foo_9402',
-  'foo_9403',
-  'foo_9404',
-  'foo_9405',
-  'foo_9406',
-  'foo_9407',
-  'foo_9408',
-  'foo_9409',
-  'foo_9410',
-  'foo_9411',
-  'foo_9412',
-  'foo_9413',
-  'foo_9414',
-  'foo_9415',
-  'foo_9416',
-  'foo_9417',
-  'foo_9418',
-  'foo_9419',
-  'foo_9420',
-  'foo_9421',
-  'foo_9422',
-  'foo_9423',
-  'foo_9424',
-  'foo_9425',
-  'foo_9426',
-  'foo_9427',
-  'foo_9428',
-  'foo_9429',
-  'foo_9430',
-  'foo_9431',
-  'foo_9432',
-  'foo_9433',
-  'foo_9434',
-  'foo_9435',
-  'foo_9436',
-  'foo_9437',
-  'foo_9438',
-  'foo_9439',
-  'foo_9440',
-  'foo_9441',
-  'foo_9442',
-  'foo_9443',
-  'foo_9444',
-  'foo_9445',
-  'foo_9446',
-  'foo_9447',
-  'foo_9448',
-  'foo_9449',
-  'foo_9450',
-  'foo_9451',
-  'foo_9452',
-  'foo_9453',
-  'foo_9454',
-  'foo_9455',
-  'foo_9456',
-  'foo_9457',
-  'foo_9458',
-  'foo_9459',
-  'foo_9460',
-  'foo_9461',
-  'foo_9462',
-  'foo_9463',
-  'foo_9464',
-  'foo_9465',
-  'foo_9466',
-  'foo_9467',
-  'foo_9468',
-  'foo_9469',
-  'foo_9470',
-  'foo_9471',
-  'foo_9472',
-  'foo_9473',
-  'foo_9474',
-  'foo_9475',
-  'foo_9476',
-  'foo_9477',
-  'foo_9478',
-  'foo_9479',
-  'foo_9480',
-  'foo_9481',
-  'foo_9482',
-  'foo_9483',
-  'foo_9484',
-  'foo_9485',
-  'foo_9486',
-  'foo_9487',
-  'foo_9488',
-  'foo_9489',
-  'foo_9490',
-  'foo_9491',
-  'foo_9492',
-  'foo_9493',
-  'foo_9494',
-  'foo_9495',
-  'foo_9496',
-  'foo_9497',
-  'foo_9498',
-  'foo_9499',
-  'foo_9500',
-  'foo_9501',
-  'foo_9502',
-  'foo_9503',
-  'foo_9504',
-  'foo_9505',
-  'foo_9506',
-  'foo_9507',
-  'foo_9508',
-  'foo_9509',
-  'foo_9510',
-  'foo_9511',
-  'foo_9512',
-  'foo_9513',
-  'foo_9514',
-  'foo_9515',
-  'foo_9516',
-  'foo_9517',
-  'foo_9518',
-  'foo_9519',
-  'foo_9520',
-  'foo_9521',
-  'foo_9522',
-  'foo_9523',
-  'foo_9524',
-  'foo_9525',
-  'foo_9526',
-  'foo_9527',
-  'foo_9528',
-  'foo_9529',
-  'foo_9530',
-  'foo_9531',
-  'foo_9532',
-  'foo_9533',
-  'foo_9534',
-  'foo_9535',
-  'foo_9536',
-  'foo_9537',
-  'foo_9538',
-  'foo_9539',
-  'foo_9540',
-  'foo_9541',
-  'foo_9542',
-  'foo_9543',
-  'foo_9544',
-  'foo_9545',
-  'foo_9546',
-  'foo_9547',
-  'foo_9548',
-  'foo_9549',
-  'foo_9550',
-  'foo_9551',
-  'foo_9552',
-  'foo_9553',
-  'foo_9554',
-  'foo_9555',
-  'foo_9556',
-  'foo_9557',
-  'foo_9558',
-  'foo_9559',
-  'foo_9560',
-  'foo_9561',
-  'foo_9562',
-  'foo_9563',
-  'foo_9564',
-  'foo_9565',
-  'foo_9566',
-  'foo_9567',
-  'foo_9568',
-  'foo_9569',
-  'foo_9570',
-  'foo_9571',
-  'foo_9572',
-  'foo_9573',
-  'foo_9574',
-  'foo_9575',
-  'foo_9576',
-  'foo_9577',
-  'foo_9578',
-  'foo_9579',
-  'foo_9580',
-  'foo_9581',
-  'foo_9582',
-  'foo_9583',
-  'foo_9584',
-  'foo_9585',
-  'foo_9586',
-  'foo_9587',
-  'foo_9588',
-  'foo_9589',
-  'foo_9590',
-  'foo_9591',
-  'foo_9592',
-  'foo_9593',
-  'foo_9594',
-  'foo_9595',
-  'foo_9596',
-  'foo_9597',
-  'foo_9598',
-  'foo_9599',
-  'foo_9600',
-  'foo_9601',
-  'foo_9602',
-  'foo_9603',
-  'foo_9604',
-  'foo_9605',
-  'foo_9606',
-  'foo_9607',
-  'foo_9608',
-  'foo_9609',
-  'foo_9610',
-  'foo_9611',
-  'foo_9612',
-  'foo_9613',
-  'foo_9614',
-  'foo_9615',
-  'foo_9616',
-  'foo_9617',
-  'foo_9618',
-  'foo_9619',
-  'foo_9620',
-  'foo_9621',
-  'foo_9622',
-  'foo_9623',
-  'foo_9624',
-  'foo_9625',
-  'foo_9626',
-  'foo_9627',
-  'foo_9628',
-  'foo_9629',
-  'foo_9630',
-  'foo_9631',
-  'foo_9632',
-  'foo_9633',
-  'foo_9634',
-  'foo_9635',
-  'foo_9636',
-  'foo_9637',
-  'foo_9638',
-  'foo_9639',
-  'foo_9640',
-  'foo_9641',
-  'foo_9642',
-  'foo_9643',
-  'foo_9644',
-  'foo_9645',
-  'foo_9646',
-  'foo_9647',
-  'foo_9648',
-  'foo_9649',
-  'foo_9650',
-  'foo_9651',
-  'foo_9652',
-  'foo_9653',
-  'foo_9654',
-  'foo_9655',
-  'foo_9656',
-  'foo_9657',
-  'foo_9658',
-  'foo_9659',
-  'foo_9660',
-  'foo_9661',
-  'foo_9662',
-  'foo_9663',
-  'foo_9664',
-  'foo_9665',
-  'foo_9666',
-  'foo_9667',
-  'foo_9668',
-  'foo_9669',
-  'foo_9670',
-  'foo_9671',
-  'foo_9672',
-  'foo_9673',
-  'foo_9674',
-  'foo_9675',
-  'foo_9676',
-  'foo_9677',
-  'foo_9678',
-  'foo_9679',
-  'foo_9680',
-  'foo_9681',
-  'foo_9682',
-  'foo_9683',
-  'foo_9684',
-  'foo_9685',
-  'foo_9686',
-  'foo_9687',
-  'foo_9688',
-  'foo_9689',
-  'foo_9690',
-  'foo_9691',
-  'foo_9692',
-  'foo_9693',
-  'foo_9694',
-  'foo_9695',
-  'foo_9696',
-  'foo_9697',
-  'foo_9698',
-  'foo_9699',
-  'foo_9700',
-  'foo_9701',
-  'foo_9702',
-  'foo_9703',
-  'foo_9704',
-  'foo_9705',
-  'foo_9706',
-  'foo_9707',
-  'foo_9708',
-  'foo_9709',
-  'foo_9710',
-  'foo_9711',
-  'foo_9712',
-  'foo_9713',
-  'foo_9714',
-  'foo_9715',
-  'foo_9716',
-  'foo_9717',
-  'foo_9718',
-  'foo_9719',
-  'foo_9720',
-  'foo_9721',
-  'foo_9722',
-  'foo_9723',
-  'foo_9724',
-  'foo_9725',
-  'foo_9726',
-  'foo_9727',
-  'foo_9728',
-  'foo_9729',
-  'foo_9730',
-  'foo_9731',
-  'foo_9732',
-  'foo_9733',
-  'foo_9734',
-  'foo_9735',
-  'foo_9736',
-  'foo_9737',
-  'foo_9738',
-  'foo_9739',
-  'foo_9740',
-  'foo_9741',
-  'foo_9742',
-  'foo_9743',
-  'foo_9744',
-  'foo_9745',
-  'foo_9746',
-  'foo_9747',
-  'foo_9748',
-  'foo_9749',
-  'foo_9750',
-  'foo_9751',
-  'foo_9752',
-  'foo_9753',
-  'foo_9754',
-  'foo_9755',
-  'foo_9756',
-  'foo_9757',
-  'foo_9758',
-  'foo_9759',
-  'foo_9760',
-  'foo_9761',
-  'foo_9762',
-  'foo_9763',
-  'foo_9764',
-  'foo_9765',
-  'foo_9766',
-  'foo_9767',
-  'foo_9768',
-  'foo_9769',
-  'foo_9770',
-  'foo_9771',
-  'foo_9772',
-  'foo_9773',
-  'foo_9774',
-  'foo_9775',
-  'foo_9776',
-  'foo_9777',
-  'foo_9778',
-  'foo_9779',
-  'foo_9780',
-  'foo_9781',
-  'foo_9782',
-  'foo_9783',
-  'foo_9784',
-  'foo_9785',
-  'foo_9786',
-  'foo_9787',
-  'foo_9788',
-  'foo_9789',
-  'foo_9790',
-  'foo_9791',
-  'foo_9792',
-  'foo_9793',
-  'foo_9794',
-  'foo_9795',
-  'foo_9796',
-  'foo_9797',
-  'foo_9798',
-  'foo_9799',
-  'foo_9800',
-  'foo_9801',
-  'foo_9802',
-  'foo_9803',
-  'foo_9804',
-  'foo_9805',
-  'foo_9806',
-  'foo_9807',
-  'foo_9808',
-  'foo_9809',
-  'foo_9810',
-  'foo_9811',
-  'foo_9812',
-  'foo_9813',
-  'foo_9814',
-  'foo_9815',
-  'foo_9816',
-  'foo_9817',
-  'foo_9818',
-  'foo_9819',
-  'foo_9820',
-  'foo_9821',
-  'foo_9822',
-  'foo_9823',
-  'foo_9824',
-  'foo_9825',
-  'foo_9826',
-  'foo_9827',
-  'foo_9828',
-  'foo_9829',
-  'foo_9830',
-  'foo_9831',
-  'foo_9832',
-  'foo_9833',
-  'foo_9834',
-  'foo_9835',
-  'foo_9836',
-  'foo_9837',
-  'foo_9838',
-  'foo_9839',
-  'foo_9840',
-  'foo_9841',
-  'foo_9842',
-  'foo_9843',
-  'foo_9844',
-  'foo_9845',
-  'foo_9846',
-  'foo_9847',
-  'foo_9848',
-  'foo_9849',
-  'foo_9850',
-  'foo_9851',
-  'foo_9852',
-  'foo_9853',
-  'foo_9854',
-  'foo_9855',
-  'foo_9856',
-  'foo_9857',
-  'foo_9858',
-  'foo_9859',
-  'foo_9860',
-  'foo_9861',
-  'foo_9862',
-  'foo_9863',
-  'foo_9864',
-  'foo_9865',
-  'foo_9866',
-  'foo_9867',
-  'foo_9868',
-  'foo_9869',
-  'foo_9870',
-  'foo_9871',
-  'foo_9872',
-  'foo_9873',
-  'foo_9874',
-  'foo_9875',
-  'foo_9876',
-  'foo_9877',
-  'foo_9878',
-  'foo_9879',
-  'foo_9880',
-  'foo_9881',
-  'foo_9882',
-  'foo_9883',
-  'foo_9884',
-  'foo_9885',
-  'foo_9886',
-  'foo_9887',
-  'foo_9888',
-  'foo_9889',
-  'foo_9890',
-  'foo_9891',
-  'foo_9892',
-  'foo_9893',
-  'foo_9894',
-  'foo_9895',
-  'foo_9896',
-  'foo_9897',
-  'foo_9898',
-  'foo_9899',
-  'foo_9900',
-  'foo_9901',
-  'foo_9902',
-  'foo_9903',
-  'foo_9904',
-  'foo_9905',
-  'foo_9906',
-  'foo_9907',
-  'foo_9908',
-  'foo_9909',
-  'foo_9910',
-  'foo_9911',
-  'foo_9912',
-  'foo_9913',
-  'foo_9914',
-  'foo_9915',
-  'foo_9916',
-  'foo_9917',
-  'foo_9918',
-  'foo_9919',
-  'foo_9920',
-  'foo_9921',
-  'foo_9922',
-  'foo_9923',
-  'foo_9924',
-  'foo_9925',
-  'foo_9926',
-  'foo_9927',
-  'foo_9928',
-  'foo_9929',
-  'foo_9930',
-  'foo_9931',
-  'foo_9932',
-  'foo_9933',
-  'foo_9934',
-  'foo_9935',
-  'foo_9936',
-  'foo_9937',
-  'foo_9938',
-  'foo_9939',
-  'foo_9940',
-  'foo_9941',
-  'foo_9942',
-  'foo_9943',
-  'foo_9944',
-  'foo_9945',
-  'foo_9946',
-  'foo_9947',
-  'foo_9948',
-  'foo_9949',
-  'foo_9950',
-  'foo_9951',
-  'foo_9952',
-  'foo_9953',
-  'foo_9954',
-  'foo_9955',
-  'foo_9956',
-  'foo_9957',
-  'foo_9958',
-  'foo_9959',
-  'foo_9960',
-  'foo_9961',
-  'foo_9962',
-  'foo_9963',
-  'foo_9964',
-  'foo_9965',
-  'foo_9966',
-  'foo_9967',
-  'foo_9968',
-  'foo_9969',
-  'foo_9970',
-  'foo_9971',
-  'foo_9972',
-  'foo_9973',
-  'foo_9974',
-  'foo_9975',
-  'foo_9976',
-  'foo_9977',
-  'foo_9978',
-  'foo_9979',
-  'foo_9980',
-  'foo_9981',
-  'foo_9982',
-  'foo_9983',
-  'foo_9984',
-  'foo_9985',
-  'foo_9986',
-  'foo_9987',
-  'foo_9988',
-  'foo_9989',
-  'foo_9990',
-  'foo_9991',
-  'foo_9992',
-  'foo_9993',
-  'foo_9994',
-  'foo_9995',
-  'foo_9996',
-  'foo_9997',
-  'foo_9998',
-  'foo_9999',
-};
diff --git a/tests/language_2/set_literals/const_set_literal_test.dart b/tests/language_2/set_literals/const_set_literal_test.dart
deleted file mode 100644
index 8b1bba983de..00000000000
--- a/tests/language_2/set_literals/const_set_literal_test.dart
+++ /dev/null
@@ -1,130 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-import "package:expect/expect.dart";
-
-void main() {
-  test();
-}
-
-void test() {
-  checkSet<T>(Object o, List elements) {
-    Expect.type<Set<T>>(o);
-    Set<T> set = o;
-    Expect.listEquals(elements, set.toList());
-    Expect.throws<Error>(set.clear);
-  }
-
-  // Various context types for literals.
-  Object setContext<T>(Set<T> object) => object;
-  Object iterableContext<T>(Iterable<T> object) => object;
-  Object foSetContext<T>(FutureOr<Set<T>> object) => object;
-  Object foIterableContext<T>(FutureOr<Set<T>> object) => object;
-
-  // Empty literal, no type arguments.
-  // No context.
-  Expect.type<Map<dynamic, dynamic>>(const {});
-  // Set context with no inferred type argument.
-  checkSet<dynamic>(setContext(const {}), []);
-  checkSet<dynamic>(iterableContext(const {}), []);
-  checkSet<dynamic>(foSetContext(const {}), []);
-  checkSet<dynamic>(foIterableContext(const {}), []);
-  // Specific set context.
-  checkSet<int>(setContext<int>(const {}), []);
-  checkSet<int>(iterableContext<int>(const {}), []);
-  checkSet<int>(foSetContext<int>(const {}), []);
-  checkSet<int>(foIterableContext<int>(const {}), []);
-
-  // Non-empty set literal, no type argument.
-  // No context.
-  checkSet<int>(const {1}, [1]);
-  checkSet<int>(const {3, 1, 2, 4}, [3, 1, 2, 4]);
-  // Set context with no inferred type argument.
-  checkSet<int>(setContext(const {1}), [1]);
-  checkSet<int>(iterableContext(const {1}), [1]);
-  checkSet<int>(foSetContext(const {1}), [1]);
-  checkSet<int>(foIterableContext(const {1}), [1]);
-  checkSet<int>(setContext(const {3, 1, 2, 4}), [3, 1, 2, 4]);
-  checkSet<int>(iterableContext(const {3, 1, 2, 4}), [3, 1, 2, 4]);
-  checkSet<int>(foSetContext(const {1}), [1]);
-  checkSet<int>(foIterableContext(const {1}), [1]);
-  // Specific set context.
-  checkSet<num>(setContext<num>(const {1}), [1]);
-  checkSet<num>(iterableContext<num>(const {1}), [1]);
-  checkSet<num>(foSetContext<num>(const {1}), [1]);
-  checkSet<num>(foIterableContext<num>(const {1}), [1]);
-  checkSet<num>(setContext<num>(const {3, 1, 2, 4}), [3, 1, 2, 4]);
-  checkSet<num>(iterableContext<num>(const {3, 1, 2, 4}), [3, 1, 2, 4]);
-  checkSet<num>(foSetContext<num>(const {3, 1, 2, 4}), [3, 1, 2, 4]);
-  checkSet<num>(foIterableContext<num>(const {3, 1, 2, 4}), [3, 1, 2, 4]);
-
-  // Non-empty set literal with type argument.
-  checkSet<num>(const <num>{1}, [1]);
-  checkSet<num>(const <num>{3, 1, 2, 4}, [3, 1, 2, 4]);
-
-  // Integers, String and symbols work, even if they override ==.
-  checkSet<String>(const {"foo", "bar"}, ["foo", "bar"]);
-  checkSet<Symbol>(const {#foo, #bar}, [#foo, #bar]);
-  checkSet<Symbol>(const {#_foo, #_bar}, [#_foo, #_bar]);
-  const object = Object();
-  checkSet<Object>(const {#foo, 1, "string", object, true},
-      [#foo, 1, "string", object, true]);
-
-  // Nested constant literals.
-  const Object o = {{2}};
-  Expect.type<Set<Set<int>>>(o);
-  Set<Set<int>> set = o;
-  Expect.equals(1, set.length);
-  Expect.equals(1, set.first.length);
-  Expect.equals(2, set.first.first);
-
-  const Object o2 = {{2}, <int>{}};
-  Expect.type<Set<Set<int>>>(o);
-  set = o2;
-  Expect.equals(2, set.length);
-  Expect.equals(1, set.first.length);
-  Expect.equals(2, set.first.first);
-
-  const Set<Set<int>> o3 = {{}};
-  Expect.equals(1, o3.length);
-  Expect.equals(0, o3.first.length);
-
-  const o4 = {{}};
-  Expect.type<Set<Map<dynamic, dynamic>>>(o4);
-  Expect.equals(1, o4.length);
-  Expect.equals(0, o4.first.length);
-
-  const o5 = {{1}, {}};  // Set<Object>
-  Expect.type<Set<Object>>(o5);
-  Expect.notType<Set<Set<Object>>>(o5);
-
-  // User defined constant class.
-  const o6 = {
-    Something(1, "a"),
-    Something(2, "a"),
-    Something(1, "b"),
-    Something(2, "b"),
-  };
-  Expect.equals("1:a,2:a,1:b,2:b", o6.toList().join(","));
-
-  // Canonicalization of constant sets takes ordering into account,
-  // that is, o7 and o8 cannot be the same object.
-  const o7 = {1, 2, 3};
-  const o8 = {3, 2, 1};
-  Expect.notIdentical(o7, o8);
-  // But o7 and o9 must be identical.
-  const o9 = {1, 2, 3};
-  Expect.identical(o7, o9);
-}
-
-class Something {
-  final int id;
-  final String name;
-  const Something(this.id, this.name);
-  String toString() => "$id:$name";
-}
diff --git a/tests/language_2/set_literals/in_annotations_test.dart b/tests/language_2/set_literals/in_annotations_test.dart
deleted file mode 100644
index 2e1547e3e23..00000000000
--- a/tests/language_2/set_literals/in_annotations_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@Meta({})
-import 'dart:core';
-
-@Meta({})
-void f(@Meta({}) int foo) {}
-
-@Meta({})
-class A<@Meta({}) T> {
-  @Meta({})
-  String x, y;
-
-  @Meta({})
-  A();
-
-  @Meta({})
-  void m() {
-    @Meta({})
-    int z;
-  }
-}
-
-@Meta({})
-enum E {
-  @Meta({})
-  v
-}
-
-class Meta {
-  final Set<int> value;
-
-  const Meta(this.value);
-}
-
-main() {}
diff --git a/tests/language_2/set_literals/in_initializer_test.dart b/tests/language_2/set_literals/in_initializer_test.dart
deleted file mode 100644
index 24583158bc1..00000000000
--- a/tests/language_2/set_literals/in_initializer_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Bag {
-  final Set<Object> things;
-  Bag({Set<Object> things}) : this.things = things ?? <Object>{};
-  Bag.full({Set<Object> this.things = const {"cat"}});
-}
-
-main() {
-  new Bag();
-  new Bag(things: {});
-  new Bag.full();
-  new Bag.full(things: {});
-}
diff --git a/tests/language_2/set_literals/invalid_set_literal_test.dart b/tests/language_2/set_literals/invalid_set_literal_test.dart
deleted file mode 100644
index 54c63dc360a..00000000000
--- a/tests/language_2/set_literals/invalid_set_literal_test.dart
+++ /dev/null
@@ -1,90 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:collection" show HashSet, LinkedHashSet;
-
-import "package:expect/expect.dart";
-
-const Object d = 3.5;
-
-void main() {
-   var o //
-      = <int>{1: 1} //# 01: compile-time error
-      = <int, int, int>{} //# 02: compile-time error
-      = <int, int, int>{1} //# 03: compile-time error
-      = <int, int>{1} //# 04: compile-time error
-      = const <int, int, int>{} //# 05: compile-time error
-      = const <int, int, int>{1} //# 06: compile-time error
-      = const <int, int>{1} //# 07: compile-time error
-      = const {Duration(seconds: 0)} // Overrides ==. //# 08: compile-time error
-      = const {4.2} // Overrides ==. //# 09: compile-time error
-      = const {d} // Overrides ==. //# 10: compile-time error
-      = {,} //# 11: syntax error
-      = {1,,} //# 12: syntax error
-      = {1,,1} //# 13: syntax error
-      ;
-  Expect.isNull(o); // Should be unreachable with a value.
-
-  Set<int> s //
-      = {"not int"} //# 14: compile-time error
-      = {4.2} //# 15: compile-time error
-      = {1: 1} //# 16: compile-time error
-      = {{}} //# 17: compile-time error
-      ;
-  Expect.isNull(s);
-
-  Set<Set<Object>> ss //
-      = {{1: 1}} //# 19: compile-time error
-      = {<int, int>{}} //# 20: compile-time error
-      = {<int>{1: 1}} //# 21: compile-time error
-      = const {ss} //# 22: compile-time error
-      ;
-  Expect.isNull(ss);
-
-  HashSet<int> hs //
-      = {} // Exact type is LinkedHashSet //# 23: compile-time error
-      ;
-  Expect.isNull(hs);
-
-  <T>(x) {
-    // Type constants are allowed, type variables are not.
-    var o //
-        = const {T} //# 26: compile-time error
-        = const {x} //# 27: compile-time error
-        ;
-    Expect.isNull(o);
-  }<int>(42);
-
-  <T extends Set<num>>() {
-    // Regression test for http://dartbug.com/35300.
-    // The `Set<Null>` type is not assignable to `T extends Set<num>`,
-    // so we don't make this a set. You can't assign a map to `T`.
-    T o //
-    = {}; //# 28: compile-time error
-    ;
-  }();
-
-  // Constant sets must not contain equal elements.
-  const cs = {
-    1,
-    "s",
-    #foo,
-    int,
-    C(1),
-    {1},
-    1, //# 29: compile-time error
-    "s", //# 30: compile-time error
-    #foo, //# 31: compile-time error
-    int, //# 32: compile-time error
-    C(1), //# 33: compile-time error
-    {1}, //# 34: compile-time error
-  };
-}
-
-class C {
-  final Object id;
-  const C(this.id);
-}
diff --git a/tests/language_2/set_literals/set_literal_test.dart b/tests/language_2/set_literals/set_literal_test.dart
deleted file mode 100644
index c11ce5afe45..00000000000
--- a/tests/language_2/set_literals/set_literal_test.dart
+++ /dev/null
@@ -1,133 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import "dart:collection" show LinkedHashSet;
-
-import "package:expect/expect.dart";
-
-void main() {
-  test();
-}
-
-void test() {
-  checkSet<T>(Object o, List elements) {
-    Expect.type<LinkedHashSet<T>>(o);
-    Set<T> set = o;
-    Expect.listEquals(elements, set.toList());
-  }
-
-  Object setContext<T>(Set<T> object) => object;
-  Object iterableContext<T>(Iterable<T> object) => object;
-  Object foSetContext<T>(FutureOr<Set<T>> object) => object;
-  Object foIterableContext<T>(FutureOr<Iterable<T>> object) => object;
-
-  // Empty literal, no type arguments.
-  // No context.
-  Expect.type<Map<dynamic, dynamic>>({});
-  // Set context with no inferred type argument.
-  checkSet<dynamic>(setContext({}), []);
-  checkSet<dynamic>(iterableContext({}), []);
-  checkSet<dynamic>(foSetContext({}), []);
-  checkSet<dynamic>(foIterableContext({}), []);
-  // Specific set context.
-  checkSet<int>(setContext<int>({}), []);
-  checkSet<int>(iterableContext<int>({}), []);
-  checkSet<int>(foSetContext<int>({}), []);
-  checkSet<int>(foIterableContext<int>({}), []);
-
-  // Non-empty set literal, no type argument.
-  // No context.
-  checkSet<int>({1}, [1]);
-  checkSet<int>({3, 1, 2, 4, 1, 4}, [3, 1, 2, 4]);
-  // Set context with no inferred type argument.
-  checkSet<int>(setContext({1}), [1]);
-  checkSet<int>(iterableContext({1}), [1]);
-  checkSet<int>(foSetContext({1}), [1]);
-  checkSet<int>(foIterableContext({1}), [1]);
-  checkSet<int>(setContext({3, 1, 2, 4, 1, 4}), [3, 1, 2, 4]);
-  checkSet<int>(iterableContext({3, 1, 2, 4, 1, 4}), [3, 1, 2, 4]);
-  checkSet<int>(foSetContext({3, 1, 2, 4, 1, 4}), [3, 1, 2, 4]);
-  checkSet<int>(foIterableContext({3, 1, 2, 4, 1, 4}), [3, 1, 2, 4]);
-  // Specific set context.
-  checkSet<num>(setContext<num>({1}), [1]);
-  checkSet<num>(iterableContext<num>({1}), [1]);
-  checkSet<num>(foSetContext<num>({1}), [1]);
-  checkSet<num>(foIterableContext<num>({1}), [1]);
-  checkSet<num>(setContext<num>({3, 1, 2, 4, 1, 4}), [3, 1, 2, 4]);
-  checkSet<num>(iterableContext<num>({3, 1, 2, 4, 1, 4}), [3, 1, 2, 4]);
-  checkSet<num>(foSetContext<num>({3, 1, 2, 4, 1, 4}), [3, 1, 2, 4]);
-  checkSet<num>(foIterableContext<num>({3, 1, 2, 4, 1, 4}), [3, 1, 2, 4]);
-
-  // Non-empty set literal with type argument.
-  checkSet<num>(<num>{1}, [1]);
-  checkSet<num>(<num>{3, 1, 2, 4, 1, 4}, [3, 1, 2, 4]);
-
-  // Iteration order. Values are evaluated in first-added order.
-  var e1a = Equality(1, "a");
-  var e1b = Equality(1, "b");
-  var e2a = Equality(2, "a");
-  var e2b = Equality(2, "b");
-  var es = {e1a, e2b, e1b, e2a};
-  checkSet<Equality>(es, [e1a, e2b]);
-  Expect.equals("1:a,2:b", es.join(","));
-
-  // Evaluation order. All elements are evaluated, left to right.
-  var entries = <int>[];
-  T log<T>(T value, int entry) {
-    entries.add(entry);
-    return value;
-  }
-  checkSet<Equality>(
-      {log(e1a, 1), log(e2b, 2), log(e1b, 3), log(e2a, 4)}, [e1a, e2b]);
-  Expect.listEquals([1, 2, 3, 4], entries);
-
-  // Nested literals.
-  Object o = {{2}};
-  Expect.type<LinkedHashSet<Set<int>>>(o);
-  Expect.type<LinkedHashSet<int>>((o as Set).first);
-  Set<Set<int>> set = o;
-  Expect.equals(1, set.length);
-  Expect.equals(1, set.first.length);
-  Expect.equals(2, set.first.first);
-
-  o = {{2}, <int>{}};
-  Expect.type<LinkedHashSet<Set<int>>>(o);
-  Expect.type<LinkedHashSet<int>>((o as Set).first);
-  set = o;
-  Expect.equals(2, set.length);
-  Expect.equals(1, set.first.length);
-  Expect.equals(2, set.first.first);
-
-  var set2 = {{}};
-  Expect.type<Set<Map<dynamic, dynamic>>>(set2);
-  Expect.equals(1, set2.length);
-  Expect.equals(0, set2.first.length);
-
-  var set3 = {{1}, {}};  // Set<Object>
-  Expect.type<Set<Object>>(set3);
-  Expect.notType<Set<Set<Object>>>(set3);
-
-  // Trailing comma.
-  Iterable<Object> i;
-  i = {1,};
-  Expect.type<Set<Object>>(i);
-  Expect.equals(1, i.length);
-
-  o = {1, 2, 3,};
-  Expect.type<Set<int>>(o);
-  Set<Object> set4 = o;
-  Expect.equals(3, set4.length);
-}
-
-class Equality {
-  final int id;
-  final String name;
-  const Equality(this.id, this.name);
-  int get hashCode => id;
-  bool operator==(Object other) => other is Equality && id == other.id;
-  String toString() => "$id:$name";
-}
diff --git a/tests/language_2/setter/checked2_test.dart b/tests/language_2/setter/checked2_test.dart
deleted file mode 100644
index 29d91633390..00000000000
--- a/tests/language_2/setter/checked2_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that implicit setters do a type check generic types.
-import "package:expect/expect.dart";
-
-class A {
-  C<int> c;
-}
-
-class B extends A {}
-
-class C<T> {}
-
-var array = <dynamic>[new B()];
-
-main() {
-  array[0].c = new C<int>();
-  Expect.throwsTypeError(() => array[0].c = new C<bool>());
-}
diff --git a/tests/language_2/setter/checked3_test.dart b/tests/language_2/setter/checked3_test.dart
deleted file mode 100644
index 37a591754db..00000000000
--- a/tests/language_2/setter/checked3_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  T field;
-}
-
-class B<T> {
-  T field = 42 as dynamic;
-}
-
-main() {
-  var a = new A<String>();
-  dynamic s = "string";
-
-  // This assignment is OK.
-  a.field = s;
-
-  dynamic i = 42;
-  Expect.throwsTypeError(() => a.field = i);
-
-  // Throws because the field initializer fails the implicit cast.
-  Expect.throwsTypeError(() => new B<String>());
-
-  // Throws because the assigned value fails the implicit cast.
-  var b = new B<int>();
-  Expect.throwsTypeError(() => b.field = s);
-}
diff --git a/tests/language_2/setter/checked_setter_test.dart b/tests/language_2/setter/checked_setter_test.dart
deleted file mode 100644
index 41b8b64cc77..00000000000
--- a/tests/language_2/setter/checked_setter_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that implicit setters do a runtime type check.
-
-import "package:expect/expect.dart";
-
-class A {
-  C c;
-}
-
-class B extends A {}
-
-class C {}
-
-var array = <dynamic>[new B()];
-
-main() {
-  array[0].c = new C();
-  Expect.throwsTypeError(() => array[0].c = new B());
-}
diff --git a/tests/language_2/setter/declaration_test.dart b/tests/language_2/setter/declaration_test.dart
deleted file mode 100644
index 10603f438fc..00000000000
--- a/tests/language_2/setter/declaration_test.dart
+++ /dev/null
@@ -1,128 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that a setter has a single argument.
-
-import 'dart:async';
-
-set tooFew() {}
-//  ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_SETTER
-//        ^
-// [cfe] A setter should have exactly one formal parameter.
-
-set tooMany(var value, var extra) {}
-//  ^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_PARAMETERS_FOR_SETTER
-//         ^
-// [cfe] A setter should have exactly one formal parameter.
-
-/*space*/ int set wrongReturnType1(_) {}
-//        ^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_VOID_RETURN_FOR_SETTER
-// [cfe] unspecified
-
-/*space*/ FutureOr<void> set wrongReturnType2(_) {}
-//        ^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_VOID_RETURN_FOR_SETTER
-// [cfe] unspecified
-
-/*space*/ Never set wrongReturnType3(_) {}
-//        ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_VOID_RETURN_FOR_SETTER
-// [cfe] unspecified
-
-class C {
-  static int set staticWrongReturnType1(_) => 1;
-  //     ^^^
-  // [analyzer] COMPILE_TIME_ERROR.NON_VOID_RETURN_FOR_SETTER
-  // [cfe] unspecified
-
-  static FutureOr<void> set staticWrongReturnType2(_) {}
-  //     ^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.NON_VOID_RETURN_FOR_SETTER
-  // [cfe] unspecified
-
-  static Never set staticWrongReturnType3(_) => throw 1;
-  //     ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.NON_VOID_RETURN_FOR_SETTER
-  // [cfe] unspecified
-
-  /*space*/ int set wrongReturnType1(_) {}
-  //        ^^^
-  // [analyzer] COMPILE_TIME_ERROR.NON_VOID_RETURN_FOR_SETTER
-  // [cfe] unspecified
-
-  /*space*/ FutureOr<void> set wrongReturnType2(_) {}
-  //        ^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.NON_VOID_RETURN_FOR_SETTER
-  // [cfe] unspecified
-
-  /*space*/ Never set wrongReturnType3(_) => throw 1;
-  //        ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.NON_VOID_RETURN_FOR_SETTER
-  // [cfe] unspecified
-
-  static int get staticNonAssignableTypes1 => 1;
-  //             ^^^^^^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.GETTER_NOT_ASSIGNABLE_SETTER_TYPES
-  // [cfe] unspecified
-  static set staticNonAssignableTypes1(String _) {}
-
-  static num get staticAssignableTypes1 => 1;
-  static set staticAssignableTypes1(int _) {}
-
-  static FutureOr<int> get staticAssignableTypes2 => 1;
-  static set staticAssignableTypes2(int _) {}
-
-  static dynamic get staticAssignableTypes3 => 1;
-  static set staticAssignableTypes3(int _) {}
-
-  int get nonAssignableTypes1 => 1;
-  //      ^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.GETTER_NOT_ASSIGNABLE_SETTER_TYPES
-  // [cfe] unspecified
-  set nonAssignableTypes1(String _) {}
-
-  num get assignableTypes1 => 1;
-  set assignableTypes1(int _) {}
-
-  FutureOr<int> get assignableTypes2 => 1;
-  set assignableTypes2(int _) {}
-
-  dynamic get assignableTypes3 => 1;
-  set assignableTypes3(int _) {}
-}
-
-main() {
-  tooFew = 1;
-  tooMany = 1;
-  wrongReturnType1 = 1;
-  wrongReturnType2 = 1;
-  wrongReturnType3 = 1;
-  C.staticWrongReturnType1 = 4;
-  C.staticWrongReturnType2 = 4;
-  C.staticWrongReturnType3 = 4;
-  C().wrongReturnType1 = 5;
-  C().wrongReturnType2 = 5;
-  C().wrongReturnType3 = 5;
-  var x1 = C.staticNonAssignableTypes1;
-  C.staticNonAssignableTypes1 = '' as dynamic;
-  var y1 = C.staticAssignableTypes1;
-  C.staticAssignableTypes1 = '' as dynamic;
-  var y2 = C.staticAssignableTypes2;
-  C.staticAssignableTypes2 = '' as dynamic;
-  var y3 = C.staticAssignableTypes3;
-  C.staticAssignableTypes3 = '' as dynamic;
-  var z1 = C().nonAssignableTypes1;
-  C().nonAssignableTypes1 = '' as dynamic;
-  var w1 = C().assignableTypes1;
-  C().assignableTypes1 = '' as dynamic;
-  var w2 = C().assignableTypes2;
-  C().assignableTypes2 = '' as dynamic;
-  var w3 = C().assignableTypes3;
-  C().assignableTypes3 = '' as dynamic;
-}
diff --git a/tests/language_2/setter/no_getter_call_runtime_test.dart b/tests/language_2/setter/no_getter_call_runtime_test.dart
deleted file mode 100644
index 77dafc69386..00000000000
--- a/tests/language_2/setter/no_getter_call_runtime_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-var topLevelClosure;
-
-
-get topLevel => topLevelClosure;
-
-set topLevel(var value) {}
-
-initialize() {
-  print("initializing");
-  topLevelClosure = (x) => x * 2;
-}
-
-main() {
-  initialize();
-  var x = topLevelClosure(2);
-  Expect.equals(4, x);
-
-  x = topLevel(3);
-  Expect.equals(6, x);
-}
diff --git a/tests/language_2/setter/no_getter_call_test.dart b/tests/language_2/setter/no_getter_call_test.dart
deleted file mode 100644
index a93f33be8e5..00000000000
--- a/tests/language_2/setter/no_getter_call_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var topLevelClosure;
-
-/*
-get topLevel => topLevelClosure;
-*/
-set topLevel(var value) {}
-
-initialize() {
-  print("initializing");
-  topLevelClosure = (x) => x * 2;
-}
-
-main() {
-  initialize();
-  var x = topLevelClosure(2);
-  Expect.equals(4, x);
-
-  x = topLevel(3);
-  //  ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_FUNCTION
-  // [cfe] Getter not found: 'topLevel'.
-  Expect.equals(6, x);
-}
diff --git a/tests/language_2/setter/no_getter_test.dart b/tests/language_2/setter/no_getter_test.dart
deleted file mode 100644
index cf9cd233b69..00000000000
--- a/tests/language_2/setter/no_getter_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-set topLevel(var value) {}
-
-class Example {
-  set foo(var value) {}
-}
-
-main() {
-  print(topLevel++);
-  //    ^
-  // [analyzer] unspecified
-  // [cfe] Getter not found: 'topLevel'.
-
-  Example ex = new Example();
-  print(ex.foo++);
-  //       ^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'foo' isn't defined for the class 'Example'.
-}
diff --git a/tests/language_2/setter/override2_test.dart b/tests/language_2/setter/override2_test.dart
deleted file mode 100644
index 78fcdddedf5..00000000000
--- a/tests/language_2/setter/override2_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that we do not report a compile-time error when an instance setter named
-// foo= is declared in a class inheriting an instance method, field, or getter
-// named foo, or an instance setter named foo=.
-
-import "package:expect/expect.dart";
-import "package:meta/meta.dart" show virtual;
-
-class A {
-  var foo = 42; // //# 00: ok
-  get foo => 42; // //# 01: ok
-  foo() => 42; // //# 02: compile-time error
-  set foo(value) {} // //# 03: ok
-}
-
-class B extends A {
-  var foo_;
-  set foo(value) {
-    foo_ = value;
-  }
-}
-
-main() {
-  var b = new B();
-  b.foo = 42;
-  Expect.equals(42, b.foo_);
-}
diff --git a/tests/language_2/setter/override3_test.dart b/tests/language_2/setter/override3_test.dart
deleted file mode 100644
index 263c48a158d..00000000000
--- a/tests/language_2/setter/override3_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that a setter in a subclass does not shadow the getter in the
-// superclass.
-import "package:expect/expect.dart";
-
-class A {
-  int _x = 42;
-  int get x => _x;
-}
-
-class B extends A {
-  void set x(int val) {
-    _x = val;
-  }
-}
-
-void main() {
-  var b = new B();
-  Expect.equals(42, b.x);
-
-  b.x = 21;
-  Expect.equals(21, b.x);
-}
diff --git a/tests/language_2/setter/override_test.dart b/tests/language_2/setter/override_test.dart
deleted file mode 100644
index 8a3ad48abe3..00000000000
--- a/tests/language_2/setter/override_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that we do not report a compile-time error when a static setter named
-// foo= is declared in a class inheriting an instance method or getter named
-// foo, and that we do report an error if an instance setter named foo= or
-// instance field name foo is inherited.
-
-import "package:expect/expect.dart";
-
-class A {
-  var foo = 42; // //# 00: compile-time error
-  get foo => 42; // //# 01: compile-time error
-  foo() => 42; // //# 02: compile-time error
-  set foo(value) {} // //# 03: compile-time error
-}
-
-class B extends A {
-  static var foo_;
-  static set foo(value) {
-    foo_ = value;
-  }
-}
-
-main() {
-  B.foo = 42;
-  Expect.equals(42, B.foo_);
-}
diff --git a/tests/language_2/setter/setter0_test.dart b/tests/language_2/setter/setter0_test.dart
deleted file mode 100644
index 63465b5a3d2..00000000000
--- a/tests/language_2/setter/setter0_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing setting/getting of fields when
-// only getter/setter methods are specified.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class First {
-  First(int val) : a_ = val {}
-  int a_;
-}
-
-class Second extends First {
-  static int c;
-
-  Second(int val) : super(val) {}
-
-  static void testStaticMethod() {
-    int i;
-    Second.static_a = 20;
-    i = Second.c;
-  }
-
-  void set instance_a(int value) {
-    a_ = a_ + value;
-  }
-
-  int get instance_a {
-    return a_;
-  }
-
-  static void set static_a(int value) {
-    Second.c = value;
-  }
-
-  static int get static_d {
-    return Second.c;
-  }
-}
-
-class Setter0Test {
-  static testMain() {
-    Second obj = new Second(10);
-    Expect.equals(10, obj.instance_a);
-    obj.instance_a = 20;
-    Expect.equals(30, obj.instance_a);
-
-    Second.testStaticMethod();
-    Expect.equals(20, Second.c);
-    Expect.equals(20, Second.static_d);
-  }
-}
-
-main() {
-  Setter0Test.testMain();
-}
diff --git a/tests/language_2/setter/setter1_test.dart b/tests/language_2/setter/setter1_test.dart
deleted file mode 100644
index 1b29c437d6b..00000000000
--- a/tests/language_2/setter/setter1_test.dart
+++ /dev/null
@@ -1,102 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing setting/getting of fields when
-// only getter/setter methods are specified.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class First {
-  First(int val) : a_ = val {}
-
-  void testMethod() {
-    a = 20;
-  }
-
-  static void testStaticMethod() {
-    b = 20;
-  }
-
-  int get a {
-    return a_;
-  }
-
-  void set a(int val) {
-    a_ = a_ + val;
-  }
-
-  static int get b {
-    return b_;
-  }
-
-  static void set b(int val) {
-    b_ = val;
-  }
-
-  int a_;
-  static int b_;
-}
-
-class Second {
-  static int c;
-  int a_;
-
-  Second(int value) : a_ = value {}
-
-  void testMethod() {
-    a = 20;
-  }
-
-  static void testStaticMethod() {
-    int i;
-    b = 20;
-    i = d;
-    // TODO(asiva): Turn these on once we have error handling.
-    // i = b; // Should be an error.
-    // d = 40; // Should be an error.
-  }
-
-  int get a {
-    return a_;
-  }
-
-  void set a(int value) {
-    a_ = a_ + value;
-  }
-
-  static void set b(int value) {
-    Second.c = value;
-  }
-
-  static int get d {
-    return Second.c;
-  }
-}
-
-class Setter1Test {
-  static testMain() {
-    First obj1 = new First(10);
-    Expect.equals(10, obj1.a);
-    obj1.testMethod();
-    Expect.equals(30, obj1.a);
-    First.b = 10;
-    Expect.equals(10, First.b);
-    First.testStaticMethod();
-    Expect.equals(20, First.b);
-
-    Second obj = new Second(10);
-    Expect.equals(10, obj.a);
-    obj.testMethod();
-    Expect.equals(30, obj.a);
-
-    Second.testStaticMethod();
-    Expect.equals(20, Second.c);
-    Expect.equals(20, Second.d);
-  }
-}
-
-main() {
-  Setter1Test.testMain();
-}
diff --git a/tests/language_2/setter/setter2_test.dart b/tests/language_2/setter/setter2_test.dart
deleted file mode 100644
index ca3a7c92171..00000000000
--- a/tests/language_2/setter/setter2_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing use of 'this' in an instance method.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Nested {
-  Nested(int val) : a = val {}
-  int a;
-  int foo(int i) {
-    return i;
-  }
-}
-
-class Second {
-  int a;
-  static Nested obj;
-
-  Second(int val) {}
-
-  void bar(int value) {
-    a = value;
-    Second.obj.a = Second.obj.foo(this.a);
-    this.a = 100;
-    Expect.equals(100, a);
-  }
-}
-
-class Setter2Test {
-  static testMain() {
-    Second obj = new Second(10);
-    Second.obj = new Nested(10);
-    Second.obj.a = 10;
-    Expect.equals(10, Second.obj.a);
-    Expect.equals(10, Second.obj.foo(10));
-    obj.bar(20);
-    Expect.equals(20, Second.obj.a);
-  }
-}
-
-main() {
-  Setter2Test.testMain();
-}
diff --git a/tests/language_2/setter/setter3_runtime_test.dart b/tests/language_2/setter/setter3_runtime_test.dart
deleted file mode 100644
index 6d4053cb1e0..00000000000
--- a/tests/language_2/setter/setter3_runtime_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that setters cannot have defined, non-void return types.
-// Note: The language specification specifies the absence of a type means
-// it is dynamic, however you cannot specify dynamic.
-
-class A {
-  set foo(x) {}
-  void set bar(x) {}
-
-
-}
-
-main() {
-  new A();
-}
diff --git a/tests/language_2/setter/setter3_test.dart b/tests/language_2/setter/setter3_test.dart
deleted file mode 100644
index 714ecf1e802..00000000000
--- a/tests/language_2/setter/setter3_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that setters cannot have defined, non-void return types.
-// Note: The language specification specifies the absence of a type means
-// it is dynamic, however you cannot specify dynamic.
-
-class A {
-  set foo(x) {}
-  void set bar(x) {}
-  dynamic set baz(x) {}
-//^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_VOID_RETURN_FOR_SETTER
-// [cfe] The return type of the setter must be 'void' or absent.
-  bool set bob(x) {}
-//^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_VOID_RETURN_FOR_SETTER
-// [cfe] The return type of the setter must be 'void' or absent.
-}
-
-main() {
-  new A();
-}
diff --git a/tests/language_2/setter/setter4_test.dart b/tests/language_2/setter/setter4_test.dart
deleted file mode 100644
index 67bf442f17d..00000000000
--- a/tests/language_2/setter/setter4_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test to catch error reporting bugs in class fields declarations.
-// Should be an error because we have a setter overriding a function name.
-
-// @dart = 2.9
-
-class A {
-  int a() {
-    return 1;
-  }
-
-  void set a(var val) {
-    //     ^
-    // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-    // [cfe] 'a' is already declared in this scope.
-    int i = val;
-  }
-}
-
-main() {}
diff --git a/tests/language_2/spread_collections/await_test.dart b/tests/language_2/spread_collections/await_test.dart
deleted file mode 100644
index 8dfba8a04a9..00000000000
--- a/tests/language_2/spread_collections/await_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:async_helper/async_helper.dart";
-import 'package:expect/expect.dart';
-
-final list = [1, 2, 3, 4, 5];
-final map = {1: 1, 2: 2, 3: 3, 4: 4, 5: 5};
-final set = {1, 2, 3, 4, 5};
-
-void main() {
-  asyncTest(() async {
-    await testList();
-    await testMap();
-    await testSet();
-  });
-}
-
-Future<void> testList() async {
-  var future12 = Future.value([1, 2]);
-  var future45 = Future.value([4, 5]);
-  var futureNull = Future.value(null);
-
-  // Await in spread.
-  Expect.listEquals(list, [...await future12, 3, ...await future45]);
-
-  // Await in null-aware spread.
-  Expect.listEquals(list, [...?await future12, 3, ...?await futureNull, 4, 5]);
-}
-
-Future<void> testMap() async {
-  var future12 = Future.value({1: 1, 2: 2});
-  var future45 = Future.value({4: 4, 5: 5});
-  var futureNull = Future.value(null);
-
-  // Await in spread.
-  Expect.mapEquals(map, {...await future12, 3: 3, ...await future45});
-
-  // Await in null-aware spread.
-  Expect.mapEquals(map,
-      {...?await future12, 3: 3, ...?await futureNull, 4: 4, 5: 5});
-}
-
-Future<void> testSet() async {
-  var future12 = Future.value([1, 2]);
-  var future45 = Future.value([4, 5]);
-  var futureNull = Future.value(null);
-
-  // Await in spread.
-  Expect.setEquals(set, {...await future12, 3, ...await future45});
-
-  // Await in null-aware spread.
-  Expect.setEquals(set, {...?await future12, 3, ...?await futureNull, 4, 5});
-}
diff --git a/tests/language_2/spread_collections/bind_test.dart b/tests/language_2/spread_collections/bind_test.dart
deleted file mode 100644
index 85b7ea682f5..00000000000
--- a/tests/language_2/spread_collections/bind_test.dart
+++ /dev/null
@@ -1,89 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Check that spread collections can be used in combination with async/await features.
-/// This is a regression test for http://dartbug.com/38896
-
-import "package:async_helper/async_helper.dart";
-import 'package:expect/expect.dart';
-
-Future<void> asyncTest1(Future<void> f()) {
-  asyncStart();
-  return f().then(asyncSuccess);
-}
-
-void main() {
-  asyncTest1(() async {
-    await awaitSpreadMemberCallBindTest(); // A
-    await yieldSpreadMemberCallBindTest(); // C
-    await spreadAwaitMemberCallBindTest(); // G
-    await spreadAwaitMemberAccessBindTest(); // I
-  });
-}
-
-class A {
-  List<int> m1() => [1, 2];
-  Future<List<int>> run() async {
-    return [await null, ...m1()];
-  }
-}
-
-Future<void> awaitSpreadMemberCallBindTest() async {
-  // spread on member call in await
-  Expect.listEquals([null, 1, 2], await A().run());
-}
-
-class C {
-  List<int> m2() => [1, 2];
-
-  Future<List<int>> run() async {
-    return await run3().toList();
-  }
-
-  Stream<int> run3() async* {
-    for (var k in [...await m2()]) yield k;
-  }
-}
-
-Future<void> yieldSpreadMemberCallBindTest() async {
-  var expected = [1, 2];
-
-  // spread on await of member call with yield
-  Expect.listEquals(expected, await C().run());
-}
-
-class G {
-  List<int> m2() => [1, 2];
-
-  Future<List<int>> run() async {
-    return [...await m2()];
-  }
-}
-
-Future<void> spreadAwaitMemberCallBindTest() async {
-  var expected = [1, 2];
-
-  // spread on await of member call
-  Expect.listEquals(expected, await G().run());
-}
-
-class I1 {
-  List<int> foo() => [1, 2];
-}
-
-class I {
-  I1 b = I1();
-  Future<List<int>> run() async {
-    return [...await b.foo()];
-  }
-}
-
-Future<void> spreadAwaitMemberAccessBindTest() async {
-  var expected = [1, 2];
-
-  // spread on await of member access
-  Expect.listEquals(expected, await I().run());
-}
diff --git a/tests/language_2/spread_collections/const_error_test.dart b/tests/language_2/spread_collections/const_error_test.dart
deleted file mode 100644
index 1a0a43ed647..00000000000
--- a/tests/language_2/spread_collections/const_error_test.dart
+++ /dev/null
@@ -1,70 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:collection';
-
-import 'helper_classes.dart';
-
-var nonConstList = <int>[];
-var nonConstMap = <int, String>{};
-var nonConstSet = <int>{};
-const dynamic nonIterable = 3;
-const dynamic nonMap = 3;
-
-void main() {
-  testList();
-  testMap();
-  testSet();
-}
-
-void testList() {
-  // Must be constant.
-  const _ = <int>[...nonConstList]; //# 01: compile-time error
-
-  // Must be iterable.
-  const _ = <int>[...nonIterable]; //# 02: compile-time error
-
-  // Cannot be custom iterable type.
-  const _ = <int>[...ConstIterable()]; //# 03: compile-time error
-}
-
-void testMap() {
-  // Must be constant.
-  const _ = <int, String>{...nonConstMap}; //# 04: compile-time error
-
-  // Must be map.
-  const _ = <int, String>{...nonMap}; //# 05: compile-time error
-
-  // Cannot be custom map type.
-  const _ = <int, String>{...ConstMap()}; //# 06: compile-time error
-
-  // Cannot have key collision.
-  const _ = <int, String>{1: "s", ...{1: "t"}}; //# 07: compile-time error
-  const _ = <int, String>{...{1: "s"}, ...{1: "t"}}; //# 08: compile-time error
-}
-
-void testSet() {
-  // Must be constant.
-  const _ = <int>{...nonConstList}; //# 09: compile-time error
-  const _ = <int>{...nonConstSet}; //# 10: compile-time error
-
-  // Must be iterable.
-  const _ = <int>{...nonIterable}; //# 11: compile-time error
-
-  // Cannot be custom iterable type.
-  const _ = <int>{...ConstIterable()}; //# 12: compile-time error
-
-  // Cannot override operator.==().
-  const obj = 0.1;
-  const _ = {...[0.1]}; //# 13: compile-time error
-  const _ = {...[Duration(seconds: 0)]}; //# 14: compile-time error
-  const _ = {...[obj]}; //# 15: compile-time error
-
-  // Cannot have collision.
-  const _ = {1, ...[1]}; //# 16: compile-time error
-  const _ = {...[1, 1, 3, 8]}; //# 17: compile-time error
-  const _ = {...[1], ...[1]}; //# 18: compile-time error
-}
diff --git a/tests/language_2/spread_collections/const_test.dart b/tests/language_2/spread_collections/const_test.dart
deleted file mode 100644
index 4e7eb8f31aa..00000000000
--- a/tests/language_2/spread_collections/const_test.dart
+++ /dev/null
@@ -1,182 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-// Typed as dynamic to also test spreading a value of type dynamic.
-const dynamic list = [1, 2, 3, 4];
-const dynamic map = {1: 1, 2: 2, 3: 3, 4: 4};
-const dynamic set = {1, 2, 3, 4};
-
-void main() {
-  testList();
-  testMap();
-  testSet();
-  testKeyOrder();
-}
-
-void testList() {
-  // Only spread.
-  Expect.identical(list, const <int>[...list]);
-  Expect.identical(list, const <int>[...set]);
-
-  // Spread at beginning.
-  Expect.identical(list, const <int>[...<int>[1, 2], 3, 4]);
-
-  // Spread in middle.
-  Expect.identical(list, const <int>[1, ...<int>[2, 3], 4]);
-
-  // Spread at end.
-  Expect.identical(list, const <int>[1, 2, ...<int>[3, 4]]);
-
-  // Empty spreads.
-  Expect.identical(list,
-      const <int>[...<int>[], 1, 2, ...<int>[], 3, 4, ...<int>[]]);
-
-  // Multiple spreads.
-  Expect.identical(list,
-      const <int>[...<int>[1], 2, ...<int>[3, 4]]);
-
-  // Nested spreads.
-  Expect.identical(list,
-      const <int>[...<int>[...<int>[1, 2], ...<int>[3, 4]]]);
-
-  // Null-aware.
-  Expect.identical(list,
-      const <int>[1, ...?<int>[2, 3], ...?(null), ...?<int>[4]]);
-
-  // Does not deep flatten.
-  Expect.identical(
-      const <Object>[1, 2, <int>[3], 4],
-      const <Object>[1, ...<Object>[2, <int>[3], 4]]);
-
-  // Establishes const context.
-  Expect.identical(const <Symbol>[Symbol("sym")],
-      const <Symbol>[...<Symbol>[Symbol("sym")]]);
-}
-
-void testMap() {
-  // Only spread.
-  Expect.identical(map, const <int, int>{...map});
-
-  // Spread at beginning.
-  Expect.identical(map,
-      const <int, int>{...<int, int>{1: 1, 2: 2}, 3: 3, 4: 4});
-
-  // Spread in middle.
-  Expect.identical(map,
-      const <int, int>{1: 1, ...<int, int>{2: 2, 3: 3}, 4: 4});
-
-  // Spread at end.
-  Expect.identical(map,
-      const <int, int>{1: 1, 2: 2, ...<int, int>{3: 3, 4: 4}});
-
-  // Empty spreads.
-  Expect.identical(map, const <int, int>{
-    ...<int, int>{},
-    1: 1,
-    2: 2,
-    ...<int, int>{},
-    3: 3,
-    4: 4,
-    ...<int, int>{}
-  });
-
-  // Multiple spreads.
-  Expect.identical(map,
-      const <int, int>{...<int, int>{1: 1}, 2: 2, ...<int, int>{3: 3, 4: 4}});
-
-  // Nested spreads.
-  Expect.identical(map, const <int, int>{
-    ...<int, int>{
-      ...<int, int>{1: 1, 2: 2},
-      ...<int, int>{3: 3, 4: 4}
-    }
-  });
-
-  // Null-aware.
-  Expect.identical(map, const <int, int>{
-    1: 1,
-    ...?<int, int>{2: 2, 3: 3},
-    ...?(null),
-    ...?<int, int>{4: 4}
-  });
-
-  // Does not deep flatten.
-  Expect.identical(const <int, Object>{
-    1: 1,
-    2: 2,
-    3: <int, int>{3: 3},
-    4: 4
-  }, const <int, Object>{
-    1: 1,
-    ...<int, Object>{
-      2: 2,
-      3: <int, int>{3: 3},
-      4: 4
-    }
-  });
-
-  // Establishes const context.
-  Expect.identical(const <Symbol, Symbol>{
-    Symbol("sym"): Symbol("bol")
-  }, const <Symbol, Symbol>{
-    ...<Symbol, Symbol>{Symbol("sym"): Symbol("bol")}
-  });
-}
-
-void testSet() {
-  // Only spread.
-  Expect.identical(set, const <int>{...set});
-  Expect.identical(set, const <int>{...list});
-
-  // Spread at beginning.
-  Expect.identical(set, const <int>{...<int>[1, 2], 3, 4});
-
-  // Spread in middle.
-  Expect.identical(set, const <int>{1, ...<int>[2, 3], 4});
-
-  // Spread at end.
-  Expect.identical(set, const <int>{1, 2, ...<int>[3, 4]});
-
-  // Empty spreads.
-  Expect.identical(set,
-      const <int>{...<int>[], 1, 2, ...<int>[], 3, 4, ...<int>[]});
-
-  // Multiple spreads.
-  Expect.identical(set, const <int>{...<int>[1], 2, ...<int>[3, 4]});
-
-  // Nested spreads.
-  Expect.identical(set, const <int>{...<int>{...<int>[1, 2], ...<int>[3, 4]}});
-
-  // Null-aware.
-  Expect.identical(set,
-      const <int>{1, ...?<int>[2, 3], ...?(null), ...?<int>[4]});
-
-  // Does not deep flatten.
-  Expect.identical(const <Object>{1, 2, <int>{3}, 4},
-      const <Object>{1, ...<Object>{2, <int>{3}, 4}});
-
-  // Establishes const context.
-  Expect.identical(const <Symbol>{Symbol("sym")},
-      const <Symbol>{...<Symbol>{Symbol("sym")}});
-}
-
-void testKeyOrder() {
-  // Canonicalization isn't affected by which elements are spread.
-  Expect.identical(map,
-      const <int, int>{1: 1, ...<int, int>{2: 2, 3: 3}, 4: 4});
-  Expect.identical(map,
-      const <int, int>{1: 1, ...<int, int>{2: 2}, 3: 3, ...<int, int>{4: 4}});
-
-  Expect.identical(set, const <int>{1, ...<int>{2, 3}, 4});
-  Expect.identical(set, const <int>{1, ...<int>{2}, 3, ...<int>{4}});
-
-  // Ordering does affect canonicalization.
-  Expect.notIdentical(const <int, int>{1: 1, 2: 2, 3: 3},
-      const <int, int>{1: 1, ...<int, int>{3: 3, 2: 2}});
-  Expect.notIdentical(const <int>{1, 2, 3}, const <int>{1, ...<int>{3, 2}});
-}
diff --git a/tests/language_2/spread_collections/helper_classes.dart b/tests/language_2/spread_collections/helper_classes.dart
deleted file mode 100644
index d888fc17b57..00000000000
--- a/tests/language_2/spread_collections/helper_classes.dart
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:collection';
-
-class ConstIterable extends IterableBase<int> {
-  const ConstIterable();
-
-  Iterator<int> get iterator => <int>[].iterator;
-}
-
-class ConstMap implements Map<int, String> {
-  const ConstMap();
-
-  Iterable<MapEntry<int, String>> get entries => const [];
-
-  bool get isEmpty => throw UnsupportedError("unsupported");
-  bool get isNotEmpty => throw UnsupportedError("unsupported");
-  Iterable<int> get keys => throw UnsupportedError("unsupported");
-  int get length => throw UnsupportedError("unsupported");
-  Iterable<String> get values => throw UnsupportedError("unsupported");
-  String operator [](Object key) => throw UnsupportedError("unsupported");
-  operator []=(int key, String value) => throw UnsupportedError("unsupported");
-  bool add(Object value) => throw UnsupportedError("unsupported");
-  void addAll(Map<int, String> map) => throw UnsupportedError("unsupported");
-  void addEntries(Iterable<MapEntry<int, String>> entries) =>
-      throw UnsupportedError("unsupported");
-  Map<RK, RV> cast<RK, RV>() => throw UnsupportedError("unsupported");
-  void clear() => throw UnsupportedError("unsupported");
-  bool containsKey(Object key) => throw UnsupportedError("unsupported");
-  bool containsValue(Object value) => throw UnsupportedError("unsupported");
-  void forEach(void Function(int key, String value) f) =>
-      throw UnsupportedError("unsupported");
-  Map<K2, V2> map<K2, V2>(MapEntry<K2, V2> Function(int key, String value) f) =>
-      throw UnsupportedError("unsupported");
-  String putIfAbsent(int key, String Function() ifAbsent) =>
-      throw UnsupportedError("unsupported");
-  String remove(Object key) => throw UnsupportedError("unsupported");
-  void removeWhere(bool Function(int key, String value) predicate) =>
-      throw UnsupportedError("unsupported");
-  String update(int key, String Function(String value) update,
-          {String Function() ifAbsent}) =>
-      throw UnsupportedError("unsupported");
-  void updateAll(String Function(int key, String value) update) =>
-      throw UnsupportedError("unsupported");
-}
-
-class CustomMap with MapMixin<int, String> {
-  Iterable<int> get keys => [];
-  String operator [](Object key) => "";
-  operator []=(int key, String value) {}
-  String remove(Object key) => throw UnsupportedError("unsupported");
-  void clear() => throw UnsupportedError("unsupported");
-}
-
-class CustomSet extends SetBase<int> {
-  bool add(int value) => throw UnsupportedError("unsupported");
-  bool contains(Object value) => throw UnsupportedError("unsupported");
-  Iterator<int> get iterator => <int>[].iterator;
-  int get length => 0;
-  int lookup(Object value) => throw UnsupportedError("unsupported");
-  bool remove(Object value) => throw UnsupportedError("unsupported");
-  Set<int> toSet() => this;
-}
-
-class Equality {
-  final int id;
-  final String name;
-  const Equality(this.id, this.name);
-  int get hashCode => id;
-  bool operator ==(Object other) => other is Equality && id == other.id;
-  String toString() => "$id:$name";
-}
diff --git a/tests/language_2/spread_collections/inference_test.dart b/tests/language_2/spread_collections/inference_test.dart
deleted file mode 100644
index 53d598df2fb..00000000000
--- a/tests/language_2/spread_collections/inference_test.dart
+++ /dev/null
@@ -1,117 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test how spread interacts with inference.
-import 'package:expect/expect.dart';
-
-void main() {
-  testBottomUpInference();
-  testTopDownInference();
-}
-
-void testBottomUpInference() {
-  // Lists.
-  Expect.type<List<dynamic>>([...[]]);
-  Expect.type<List<int>>([...<int>[]]);
-  Expect.type<List<int>>([...[1]]);
-  Expect.type<List<int>>([1, ...[2]]);
-  Expect.type<List<num>>([1, ...[0.2]]);
-  Expect.type<List<int>>([...[1, 2]]);
-  Expect.type<List<num>>([...[1, 0.2]]);
-  Expect.type<List<int>>([...[1], ...[2]]);
-  Expect.type<List<num>>([...[1], ...[0.2]]);
-
-  // Maps.
-  Expect.type<Map<dynamic, dynamic>>({...{}});
-  Expect.type<Map<int, int>>({...<int, int>{}});
-  Expect.type<Map<int, int>>({...{1: 1}});
-  Expect.type<Map<int, int>>({1: 1, ...{2: 2}});
-  Expect.type<Map<num, num>>({1: 1, ...{0.2: 0.2}});
-  Expect.type<Map<int, int>>({...{1: 1, 2: 2}});
-  Expect.type<Map<num, num>>({...{1: 1, 0.2: 0.2}});
-  Expect.type<Map<int, int>>({...{1: 1}, ...{2: 2}});
-  Expect.type<Map<num, num>>({...{1: 1}, ...{0.2: 0.2}});
-
-  // Sets.
-  Expect.type<Set<dynamic>>({...[]});
-  Expect.type<Set<int>>({...<int>[]});
-  Expect.type<Set<int>>({...[1]});
-  Expect.type<Set<int>>({1, ...[2]});
-  Expect.type<Set<num>>({1, ...[0.2]});
-  Expect.type<Set<int>>({...[1, 2]});
-  Expect.type<Set<num>>({...[1, 0.2]});
-  Expect.type<Set<int>>({...[1], ...[2]});
-  Expect.type<Set<num>>({...[1], ...[0.2]});
-  Expect.type<Set<num>>({...{1}, ...[0.2]});
-  Expect.type<Set<num>>({...{1}, ...{0.2}});
-
-  // If the iterable's type is dynamic, the element type is inferred as dynamic.
-  Expect.type<List<dynamic>>([...([] as dynamic)]);
-  Expect.type<Set<dynamic>>({1, ...([] as dynamic)});
-
-  // If the iterable's type is dynamic, the key and value types are inferred as
-  // dynamic.
-  Expect.type<Map<dynamic, dynamic>>({1: 1, ...({} as dynamic)});
-}
-
-void testTopDownInference() {
-  // Lists.
-  Iterable<T> expectIntIterable<T>() {
-    Expect.equals(int, T);
-    return [];
-  }
-
-  Iterable<T> expectDynamicIterable<T>() {
-    Expect.equals(dynamic, T);
-    return [];
-  }
-
-  // The context element type is pushed into the spread expression if it is
-  // Iterable<T>.
-  Expect.listEquals(<int>[], <int>[...expectIntIterable()]);
-
-  // Bottom up-inference from elements is not pushed back down into spread.
-  Expect.listEquals(<int>[1], [1, ...expectDynamicIterable()]);
-
-  // Maps.
-  Map<K, V> expectIntStringMap<K, V>() {
-    Expect.equals(int, K);
-    Expect.equals(String, V);
-    return {};
-  }
-
-  Map<K, V> expectDynamicDynamicMap<K, V>() {
-    Expect.equals(dynamic, K);
-    Expect.equals(dynamic, V);
-    return {};
-  }
-
-  // The context element type is pushed into the spread expression if it is
-  // Map<K, V>.
-  Expect.mapEquals(<int, String>{}, <int, String>{...expectIntStringMap()});
-
-  // Bottom up-inference from elements is not pushed back down into spread.
-  Expect.mapEquals(<int, String>{1: "s"},
-      {1: "s", ...expectDynamicDynamicMap()});
-
-  // Sets.
-  Set<T> expectIntSet<T>() {
-    Expect.equals(int, T);
-    return Set();
-  }
-
-  Set<T> expectDynamicSet<T>() {
-    Expect.equals(dynamic, T);
-    return Set();
-  }
-
-  // The context element type is pushed into the spread expression if it is
-  // Iterable<T>.
-  Expect.setEquals(<int>{}, <int>{...expectIntSet()});
-
-  // Bottom up-inference from elements is not pushed back down into spread.
-  Expect.setEquals(<int>{1}, {1, ...expectDynamicSet()});
-}
diff --git a/tests/language_2/spread_collections/issue_45174_error_test.dart b/tests/language_2/spread_collections/issue_45174_error_test.dart
deleted file mode 100644
index e29c3f61de0..00000000000
--- a/tests/language_2/spread_collections/issue_45174_error_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-f(Object objectQuestion) {
-  return {...<int>{}, ...objectQuestion};
-  //     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_SET_OR_MAP_LITERAL_EITHER
-  //                     ^
-  // [cfe] Unexpected type 'Object' of a map spread entry.  Expected 'dynamic' or a Map.
-}
-
-main() {}
diff --git a/tests/language_2/spread_collections/map_set_ambiguity_error_test.dart b/tests/language_2/spread_collections/map_set_ambiguity_error_test.dart
deleted file mode 100644
index fa4bcac8230..00000000000
--- a/tests/language_2/spread_collections/map_set_ambiguity_error_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test cases where the syntax is ambiguous between maps and sets.
-import 'dart:collection';
-
-import 'helper_classes.dart';
-
-void main() {
-  Map<int, int> map = {};
-  Set<int> set = Set();
-  dynamic dyn = map;
-  Iterable<int> iterable = [];
-  CustomSet customSet = CustomSet();
-  CustomMap customMap = CustomMap();
-
-  var _ = {...dyn}; //# 00: compile-time error
-  var _ = {...map, ...set}; //# 01: compile-time error
-  var _ = {...map, ...iterable}; //# 02: compile-time error
-  var _ = {...map, ...customSet}; //# 03: compile-time error
-  var _ = {...set, ...customMap}; //# 04: compile-time error
-  var _ = {...dyn, ...dyn}; //# 05: compile-time error
-  var _ = {...iterable, ...customMap}; //# 06: compile-time error
-  var _ = {...customSet, ...customMap}; //# 07: compile-time error
-}
diff --git a/tests/language_2/spread_collections/map_set_ambiguity_test.dart b/tests/language_2/spread_collections/map_set_ambiguity_test.dart
deleted file mode 100644
index 29b54699e71..00000000000
--- a/tests/language_2/spread_collections/map_set_ambiguity_test.dart
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test cases where the syntax is ambiguous between maps and sets.
-import 'dart:collection';
-
-import 'package:expect/expect.dart';
-
-import 'helper_classes.dart';
-
-void main() {
-  testBottomUpInference();
-  testTopDownInference();
-}
-
-void testBottomUpInference() {
-  Map<int, int> map = {};
-  Set<int> set = Set();
-  dynamic dynMap = map;
-  dynamic dynSet = set;
-  Iterable<int> iterable = [];
-  CustomSet customSet = CustomSet();
-  CustomMap customMap = CustomMap();
-
-  // Note: The commented out cases are the error cases. They are shown here for
-  // completeness and tested in map_set_ambiguity_error_test.dart.
-  Expect.type<Map<int, int>>({...map});
-  Expect.type<Set<int>>({...set});
-  // Expect.type<...>({...dyn});
-  Expect.type<Set<int>>({...iterable});
-  Expect.type<Set<int>>({...customSet});
-  Expect.type<Map<int, String>>({...customMap});
-
-  Expect.type<Map<int, int>>({...map, ...map});
-  // Expect.type<...>({...map, ...set});
-  Expect.type<Map<dynamic, dynamic>>({...map, ...dynMap});
-  // Expect.type<...>({...map, ...iterable});
-  // Expect.type<...>({...map, ...customSet});
-  Expect.type<Map<int, Object>>({...map, ...customMap});
-
-  Expect.type<Set<int>>({...set, ...set});
-  Expect.type<Set<dynamic>>({...set, ...dynSet});
-  Expect.type<Set<int>>({...set, ...iterable});
-  Expect.type<Set<int>>({...set, ...customSet});
-  // Expect.type<...>({...set, ...customMap});
-
-  // Expect.type<...>({...dyn, ...dyn});
-  Expect.type<Set<dynamic>>({...dynSet, ...iterable});
-  Expect.type<Set<dynamic>>({...dynSet, ...customSet});
-  Expect.type<Map<dynamic, dynamic>>({...dynMap, ...customMap});
-
-  Expect.type<Set<int>>({...iterable, ...iterable});
-  Expect.type<Set<int>>({...iterable, ...customSet});
-  // Expect.type<...>({...iterable, ...customMap});
-
-  Expect.type<Set<int>>({...customSet, ...customSet});
-  // Expect.type<...>({...customSet, ...customMap});
-
-  Expect.type<Map<int, String>>({...customMap, ...customMap});
-}
-
-void testTopDownInference() {
-  dynamic untypedMap = <int, int>{};
-  dynamic untypedIterable = <int>[];
-
-  Map<int, int> map = {...untypedMap};
-  Set<int> set = {...untypedIterable};
-  Iterable<int> iterable = {...untypedIterable};
-
-  Expect.type<Map<int, int>>(map);
-  Expect.type<Set<int>>(set);
-  Expect.type<Set<int>>(iterable);
-}
diff --git a/tests/language_2/spread_collections/runtime_error_test.dart b/tests/language_2/spread_collections/runtime_error_test.dart
deleted file mode 100644
index 4f6eff30bbb..00000000000
--- a/tests/language_2/spread_collections/runtime_error_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-// Typed as dynamic to also test spreading a value of type dynamic.
-final dynamic list = [1, 2, 3, 4];
-final dynamic map = {1: 1, 2: 2, 3: 3, 4: 4};
-final dynamic set = {1, 2, 3, 4};
-
-void main() {
-  dynamic nonIterable = 3;
-  Expect.throwsTypeError(() => <int>[...nonIterable]);
-  Expect.throwsTypeError(() => <int>{...nonIterable});
-
-  dynamic nonMap = 3;
-  Expect.throwsTypeError(() => <int, int>{...nonMap});
-
-  dynamic wrongIterableType = <String>["s"];
-  Expect.throwsTypeError(() => <int>[...wrongIterableType]);
-  Expect.throwsTypeError(() => <int>{...wrongIterableType});
-
-  dynamic wrongKeyType = <String, int>{"s": 1};
-  dynamic wrongValueType = <int, String>{1: "s"};
-  Expect.throwsTypeError(() => <int, int>{...wrongKeyType});
-  Expect.throwsTypeError(() => <int, int>{...wrongValueType});
-
-  // Mismatched collection types.
-  Expect.throwsTypeError(() => <int>[...map]);
-  Expect.throwsTypeError(() => <int, int>{...list});
-  Expect.throwsTypeError(() => <int, int>{...set});
-  Expect.throwsTypeError(() => <int>{...map});
-}
diff --git a/tests/language_2/spread_collections/spread_test.dart b/tests/language_2/spread_collections/spread_test.dart
deleted file mode 100644
index ecf7bd83948..00000000000
--- a/tests/language_2/spread_collections/spread_test.dart
+++ /dev/null
@@ -1,198 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'helper_classes.dart';
-
-// Typed as dynamic to also test spreading a value of type dynamic.
-final dynamic list = [1, 2, 3, 4];
-final dynamic map = {1: 1, 2: 2, 3: 3, 4: 4};
-final dynamic set = {1, 2, 3, 4};
-
-void main() {
-  testList();
-  testMap();
-  testSet();
-  testDuplicateKeys();
-  testKeyOrder();
-}
-
-void testList() {
-  // Only spread.
-  Expect.listEquals(list, <int>[...list]);
-
-  // Spread at beginning.
-  Expect.listEquals(list, <int>[...<int>[1, 2], 3, 4]);
-
-  // Spread in middle.
-  Expect.listEquals(list, <int>[1, ...<int>[2, 3], 4]);
-
-  // Spread at end.
-  Expect.listEquals(list, <int>[1, 2, ...<int>[3, 4]]);
-
-  // Empty spreads.
-  Expect.listEquals(list,
-      <int>[...<int>[], 1, 2, ...<int>[], 3, 4, ...<int>[]]);
-
-  // Multiple spreads.
-  Expect.listEquals(list, <int>[...<int>[1], 2, ...<int>[3, 4]]);
-
-  // Nested spreads.
-  Expect.listEquals(list, <int>[...<int>[...<int>[1, 2], ...<int>[3, 4]]]);
-
-  // Null-aware.
-  Expect.listEquals(list, <int>[1, ...?<int>[2, 3], ...?(null), ...?<int>[4]]);
-
-  // Does not deep flatten.
-  var innerList = <int>[3];
-  Expect.listEquals(
-      <Object>[1, 2, innerList, 4],
-      <Object>[1, ...<Object>[2, innerList, 4]]);
-
-  // Downcast element.
-  Expect.listEquals(list, <int>[...<num>[1, 2, 3, 4]]);
-}
-
-void testMap() {
-  // Only spread.
-  Expect.mapEquals(map, <int, int>{...map});
-
-  // Spread at beginning.
-  Expect.mapEquals(map, <int, int>{...<int, int>{1: 1, 2: 2}, 3: 3, 4: 4});
-
-  // Spread in middle.
-  Expect.mapEquals(map, <int, int>{1: 1, ...<int, int>{2: 2, 3: 3}, 4: 4});
-
-  // Spread at end.
-  Expect.mapEquals(map, <int, int>{1: 1, 2: 2, ...<int, int>{3: 3, 4: 4}});
-
-  // Empty spreads.
-  Expect.mapEquals(map, <int, int>{
-    ...<int, int>{},
-    1: 1,
-    2: 2,
-    ...<int, int>{},
-    3: 3,
-    4: 4,
-    ...<int, int>{}
-  });
-
-  // Multiple spreads.
-  Expect.mapEquals(map,
-      <int, int>{...<int, int>{1: 1}, 2: 2, ...<int, int>{3: 3, 4: 4}});
-
-  // Nested spreads.
-  Expect.mapEquals(map, <int, int>{
-    ...<int, int>{
-      ...<int, int>{1: 1, 2: 2},
-      ...<int, int>{3: 3, 4: 4}
-    }
-  });
-
-  // Null-aware.
-  Expect.mapEquals(map, <int, int>{
-    1: 1,
-    ...?<int, int>{2: 2, 3: 3},
-    ...?(null),
-    ...?<int, int>{4: 4}
-  });
-
-  // Does not deep flatten.
-  var innerMap = <int, int>{3: 3};
-  Expect.mapEquals(<int, Object>{
-    1: 1,
-    2: 2,
-    3: innerMap,
-    4: 4
-  }, <int, Object>{
-    1: 1,
-    ...<int, Object>{
-      2: 2,
-      3: innerMap,
-      4: 4
-    }
-  });
-
-  // Downcast element.
-  Expect.mapEquals(map, <int, int>{...<num, num>{1: 1, 2: 2, 3: 3, 4: 4}});
-}
-
-void testSet() {
-  // Only spread.
-  Expect.setEquals(set, <int>{...set});
-
-  // Spread at beginning.
-  Expect.setEquals(set, <int>{...<int>[1, 2], 3, 4});
-
-  // Spread in middle.
-  Expect.setEquals(set, <int>{1, ...<int>[2, 3], 4});
-
-  // Spread at end.
-  Expect.setEquals(set, <int>{1, 2, ...<int>[3, 4]});
-
-  // Empty spreads.
-  Expect.setEquals(set, <int>{...<int>[], 1, 2, ...<int>[], 3, 4, ...<int>[]});
-
-  // Multiple spreads.
-  Expect.setEquals(set, <int>{...<int>[1], 2, ...<int>[3, 4]});
-
-  // Nested spreads.
-  Expect.setEquals(set, <int>{...<int>{...<int>[1, 2], ...<int>[3, 4]}});
-
-  // Null-aware.
-  Expect.setEquals(set, <int>{1, ...?<int>[2, 3], ...?(null), ...?<int>[4]});
-
-  // Does not deep flatten.
-  var innerSet = <int>{3};
-  Expect.setEquals(<Object>{1, 2, innerSet, 4},
-      <Object>{1, ...<Object>[2, innerSet, 4]});
-
-  // Downcast element.
-  Expect.setEquals(set, <int>{...<num>[1, 2, 3, 4]});
-}
-
-void testDuplicateKeys() {
-  Expect.mapEquals(map, <int, int>{
-    1: 1,
-    2: 2,
-    ...<int, int>{2: 2, 3: 3, 4: 4},
-    ...<int, int>{3: 3},
-    4: 4
-  });
-  Expect.setEquals(set, <int>{1, 2, ...<int>[1, 2, 3, 4], ...<int>[2, 3], 4});
-}
-
-void testKeyOrder() {
-  // First equal key wins.
-  var e1a = Equality(1, "a");
-  var e1b = Equality(1, "b");
-  var e2a = Equality(2, "a");
-  var e2b = Equality(2, "b");
-
-  var map = <Equality, int>{e1a: 1, ...<Equality, int>{e1b: 2, e2a: 3, e2b: 4}};
-  Expect.equals("1:a,2:a", map.keys.join(","));
-
-  var set = <Equality>{e1a, ...<Equality>[e1b, e2a, e2b]};
-  Expect.equals("1:a,2:a", set.join(","));
-
-  // All elements are evaluated, left to right.
-  var transcript = <String>[];
-  T log<T>(T value) {
-    transcript.add(value.toString());
-    return value;
-  }
-
-  map = <Equality, int>{
-    log(e1a): log(1),
-    ...<Equality, int>{log(e1b): log(2), log(e2a): log(3), log(e2b): log(4)}
-  };
-  Expect.equals("1:a,1,1:b,2,2:a,3,2:b,4", transcript.join(","));
-
-  transcript.clear();
-  set = <Equality>{log(e1a), ...<Equality>[log(e1b), log(e2a), log(e2b)]};
-  Expect.equals("1:a,1:b,2:a,2:b", transcript.join(","));
-}
diff --git a/tests/language_2/spread_collections/syntax_error_test.dart b/tests/language_2/spread_collections/syntax_error_test.dart
deleted file mode 100644
index 4d9e36dc169..00000000000
--- a/tests/language_2/spread_collections/syntax_error_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-void main() {
-  // Spread nothing.
-  var _ = [...]; //# 00: syntax error
-  var _ = [...?]; //# 01: syntax error
-  var _ = [...,]; //# 02: syntax error
-
-  // Use `...` in map entry.
-  var _ = {"a": ...{}}; //# 03: syntax error
-  var _ = {...{}: "b"}; //# 04: syntax error
-  var _ = {"a": ...?{}}; //# 05: syntax error
-  var _ = {...?{}: "b"}; //# 06: syntax error
-
-  // Treats `...?` as single token.
-  var _ = [... ?null]; //# 07: syntax error
-  var _ = {1: 2, ... ?null}; //# 08: syntax error
-}
diff --git a/tests/language_2/spread_collections/syntax_test.dart b/tests/language_2/spread_collections/syntax_test.dart
deleted file mode 100644
index 94d83d205bd..00000000000
--- a/tests/language_2/spread_collections/syntax_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests syntax edge cases.
-import 'package:expect/expect.dart';
-
-void main() {
-  // Trailing comma.
-  Expect.listEquals([1, 2], [...[1, 2],]);
-  Expect.mapEquals({1: 1, 2: 2}, {...{1: 1, 2: 2},});
-  Expect.setEquals({1, 2}, {...{1, 2},});
-
-  // Precedence.
-  Expect.listEquals([1, 2, 3], [1, ...true ? [2] : [], 3]);
-  Expect.listEquals([1, 3], [1, ...?true ? null : [], 3]);
-
-  var a = [0];
-  Expect.listEquals([1, 2, 3], [1, ...a = [2], 3]);
-  Expect.listEquals([1, 3], [1, ...?a = null, 3]);
-
-  var b = [2];
-  Expect.listEquals([1, 2, 3, 4], [1, ...b..add(3), 4]);
-  b = [2];
-  Expect.listEquals([1, 2, 3, 4], [1, ...?b..add(3), 4]);
-}
diff --git a/tests/language_2/spread_collections/type_error_test.dart b/tests/language_2/spread_collections/type_error_test.dart
deleted file mode 100644
index 64bcb238704..00000000000
--- a/tests/language_2/spread_collections/type_error_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-void main() {
-  // Spread non-iterable or non-map.
-  var _ = [...(3)]; //# 00: compile-time error
-  var _ = <int, int>{...(3)}; //# 01: compile-time error
-  var _ = <int>{...(3)}; //# 02: compile-time error
-
-  // Object.
-  var _ = [...([] as Object)]; //# 03: compile-time error
-  var _ = <int, int>{...({} as Object)}; //# 04: compile-time error
-  var _ = <int>{...([] as Object)}; //# 05: compile-time error
-
-  // Wrong element type.
-  var _ = <int>[...<String>[]]; //# 06: compile-time error
-  var _ = <int, int>{...<String, int>{}}; //# 07: compile-time error
-  var _ = <int, int>{...<int, String>{}}; //# 08: compile-time error
-  var _ = <int>{...<String>[]}; //# 09: compile-time error
-}
diff --git a/tests/language_2/spread_collections/unevaluated_test.dart b/tests/language_2/spread_collections/unevaluated_test.dart
deleted file mode 100644
index 3be94c49b8f..00000000000
--- a/tests/language_2/spread_collections/unevaluated_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that the body of an if element with unevaluated condition can
-// contain a spread.
-// Regression test for https://github.com/dart-lang/sdk/issues/36812
-
-const b = bool.fromEnvironment("foo");
-
-main() {
-  const l1 = [1, 2, 3];
-  const l2 = [if (b) ...l1];
-  print(l2);
-}
diff --git a/tests/language_2/stack_trace/custom_await_test.dart b/tests/language_2/stack_trace/custom_await_test.dart
deleted file mode 100644
index ea57a062ba4..00000000000
--- a/tests/language_2/stack_trace/custom_await_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-
-class Blah implements StackTrace {
-  Blah(this._trace);
-
-  toString() {
-    return "Blah " + _trace.toString();
-  }
-
-  var _trace;
-}
-
-foo() {
-  var x = "\nBloop\nBleep\n";
-  return new Future.error(42, new Blah(x));
-}
-
-main() async {
-  try {
-    var x = await foo();
-    Expect.fail("Should not reach here.");
-  } on int catch (e, s) {
-    Expect.equals(42, e);
-    Expect.equals("Blah \nBloop\nBleep\n", s.toString());
-    return;
-  }
-  Expect.fail("Unreachable.");
-}
diff --git a/tests/language_2/stack_trace/demangle_ctors_test.dart b/tests/language_2/stack_trace/demangle_ctors_test.dart
deleted file mode 100644
index 714fc095bb6..00000000000
--- a/tests/language_2/stack_trace/demangle_ctors_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that stack traces are properly demangled in constructors (#28740).
-
-import "package:expect/expect.dart";
-
-class SomeClass {
-  SomeClass.namedConstructor() {
-    throw new Exception();
-  }
-
-  SomeClass() {
-    throw new Exception();
-  }
-
-  factory SomeClass.useFactory() {
-    throw new Exception();
-  }
-}
-
-class OnlyHasFactory {
-  factory OnlyHasFactory() {
-    throw new Exception();
-  }
-}
-
-void main() {
-  try {
-    new SomeClass();
-  } on Exception catch (e, st) {
-    final stString = st.toString();
-    Expect.isTrue(stString.contains("new SomeClass"));
-    Expect.isFalse(stString.contains("SomeClass."));
-  }
-
-  try {
-    new SomeClass.namedConstructor();
-  } on Exception catch (e, st) {
-    final stString = st.toString();
-    Expect.isTrue(stString.contains("new SomeClass.namedConstructor"));
-  }
-
-  try {
-    new OnlyHasFactory();
-  } on Exception catch (e, st) {
-    final stString = st.toString();
-    Expect.isTrue(stString.contains("new OnlyHasFactory"));
-    Expect.isFalse(stString.contains("OnlyHasFactory."));
-  }
-
-  try {
-    new SomeClass.useFactory();
-  } on Exception catch (e, st) {
-    final stString = st.toString();
-    Expect.isTrue(stString.contains("new SomeClass.useFactory"));
-  }
-}
diff --git a/tests/language_2/stack_trace/error_runtime_test.dart b/tests/language_2/stack_trace/error_runtime_test.dart
deleted file mode 100644
index b91bf26a2c0..00000000000
--- a/tests/language_2/stack_trace/error_runtime_test.dart
+++ /dev/null
@@ -1,128 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing throw statement
-
-import "package:expect/expect.dart";
-
-class MyException {
-  const MyException(String message) : message_ = message;
-  final String message_;
-}
-
-class Helper1 {
-  static int func1() {
-    return func2();
-  }
-
-  static int func2() {
-    return func3();
-  }
-
-  static int func3() {
-    return func4();
-  }
-
-  static int func4() {
-    var i = 0;
-    try {
-      i = 10;
-      func5();
-    } on ArgumentError catch (e) {
-      i = 100;
-      Expect.isNotNull(e.stackTrace, "Errors need a stackTrace on throw");
-    }
-    return i;
-  }
-
-  static void func5() {
-    // Throw an Error.
-    throw new ArgumentError("ArgumentError in func5");
-  }
-}
-
-class Helper2 {
-  static int func1() {
-    return func2();
-  }
-
-  static int func2() {
-    return func3();
-  }
-
-  static int func3() {
-    return func4();
-  }
-
-  static int func4() {
-    var i = 0;
-    try {
-      i = 10;
-      func5();
-    } on ArgumentError catch (e, s) {
-      i = 200;
-      Expect.isNotNull(e.stackTrace, "Errors need a stackTrace on throw");
-      Expect.equals(e.stackTrace.toString(), s.toString());
-    }
-    return i;
-  }
-
-  static List func5() {
-    // Throw an Error.
-    throw new ArgumentError("ArgumentError in func5");
-  }
-}
-
-class Helper3 {
-  static int func1() {
-    return func2();
-  }
-
-  static int func2() {
-    return func3();
-  }
-
-  static int func3() {
-    return func4();
-  }
-
-  static int func4() {
-    var i = 0;
-    try {
-      i = 10;
-      func5();
-    } on MyException catch (e) {
-      i = 300;
-
-        // There should be no stackTrace in this normal exception object.
-        // We should get a NoSuchMethodError.
-
-
-
-
-    }
-    return i;
-  }
-
-  static List func5() {
-    // Throw an Exception (any random object).
-    throw new MyException("MyException in func5");
-  }
-}
-
-class ErrorStackTraceTest {
-  static testMain() {
-    Expect.equals(100, Helper1.func1());
-    Expect.equals(200, Helper2.func1());
-    Expect.equals(300, Helper3.func1());
-  }
-}
-
-main() {
-  ErrorStackTraceTest.testMain();
-}
diff --git a/tests/language_2/stack_trace/full1_test.dart b/tests/language_2/stack_trace/full1_test.dart
deleted file mode 100644
index e00620009f1..00000000000
--- a/tests/language_2/stack_trace/full1_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-@pragma("vm:entry-point") // Prevents obfuscation
-void func1() {
-  throw new Exception("Test full stacktrace");
-}
-
-@pragma("vm:entry-point") // Prevents obfuscation
-void func2() {
-  func1();
-}
-
-@pragma("vm:entry-point") // Prevents obfuscation
-void func3() {
-  try {
-    func2();
-  } on Object catch (e, s) {
-    var fullTrace = s.toString();
-    Expect.isTrue(fullTrace.contains("func1"));
-    Expect.isTrue(fullTrace.contains("func2"));
-    Expect.isTrue(fullTrace.contains("func3"));
-    Expect.isTrue(fullTrace.contains("func4"));
-    Expect.isTrue(fullTrace.contains("func5"));
-    Expect.isTrue(fullTrace.contains("func6"));
-    Expect.isTrue(fullTrace.contains("main"));
-  }
-}
-
-@pragma("vm:entry-point") // Prevents obfuscation
-int func4() {
-  func3();
-  return 1;
-}
-
-@pragma("vm:entry-point") // Prevents obfuscation
-int func5() {
-  func4();
-  return 1;
-}
-
-@pragma("vm:entry-point") // Prevents obfuscation
-int func6() {
-  func5();
-  return 1;
-}
-
-main() {
-  var i = func6();
-  Expect.equals(1, i);
-}
diff --git a/tests/language_2/stack_trace/full2_test.dart b/tests/language_2/stack_trace/full2_test.dart
deleted file mode 100644
index 4b1dbe30ca5..00000000000
--- a/tests/language_2/stack_trace/full2_test.dart
+++ /dev/null
@@ -1,77 +0,0 @@
-// (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-@pragma("vm:entry-point") // Prevent obfuscation.
-void func1() {
-  throw new Exception("Test full stacktrace");
-}
-
-@pragma("vm:entry-point") // Prevent obfuscation.
-void func2() {
-  func1();
-}
-
-@pragma("vm:entry-point") // Prevent obfuscation.
-void func3() {
-  try {
-    func2();
-  } on Object catch (e, s) {
-    var fullTrace = s.toString();
-    Expect.isTrue(fullTrace.contains("func1"));
-    Expect.isTrue(fullTrace.contains("func2"));
-    Expect.isTrue(fullTrace.contains("func3"));
-    Expect.isTrue(fullTrace.contains("func4"));
-    Expect.isTrue(fullTrace.contains("func5"));
-    Expect.isTrue(fullTrace.contains("func6"));
-    Expect.isTrue(fullTrace.contains("func7"));
-    Expect.isTrue(fullTrace.contains("main"));
-
-    rethrow; // This is a rethrow.
-  }
-}
-
-@pragma("vm:entry-point") // Prevent obfuscation.
-int func4() {
-  func3();
-  return 1;
-}
-
-@pragma("vm:entry-point") // Prevent obfuscation.
-int func5() {
-  try {
-    func4();
-  } on Object catch (e, s) {
-    var fullTrace = s.toString();
-    Expect.isTrue(fullTrace.contains("func1"));
-    Expect.isTrue(fullTrace.contains("func2"));
-    Expect.isTrue(fullTrace.contains("func3"));
-    Expect.isTrue(fullTrace.contains("func4"));
-    Expect.isTrue(fullTrace.contains("func5"));
-    Expect.isTrue(fullTrace.contains("func6"));
-    Expect.isTrue(fullTrace.contains("func7"));
-    Expect.isTrue(fullTrace.contains("main"));
-  }
-  return 1;
-}
-
-@pragma("vm:entry-point") // Prevent obfuscation.
-int func6() {
-  func5();
-  return 1;
-}
-
-@pragma("vm:entry-point") // Prevent obfuscation.
-int func7() {
-  func6();
-  return 1;
-}
-
-main() {
-  var i = func7();
-  Expect.equals(1, i);
-}
diff --git a/tests/language_2/stack_trace/full3_test.dart b/tests/language_2/stack_trace/full3_test.dart
deleted file mode 100644
index ee621b2f0db..00000000000
--- a/tests/language_2/stack_trace/full3_test.dart
+++ /dev/null
@@ -1,76 +0,0 @@
-// (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-@pragma("vm:entry-point") // Prevent obfuscation
-void func1() {
-  throw new Exception("Test full stacktrace");
-}
-
-@pragma("vm:entry-point") // Prevent obfuscation
-void func2() {
-  func1();
-}
-
-@pragma("vm:entry-point") // Prevent obfuscation
-void func3() {
-  try {
-    func2();
-  } on Object catch (e, s) {
-    var fullTrace = s.toString();
-    Expect.isTrue(fullTrace.contains("func1"));
-    Expect.isTrue(fullTrace.contains("func2"));
-    Expect.isTrue(fullTrace.contains("func3"));
-    Expect.isTrue(fullTrace.contains("func4"));
-    Expect.isTrue(fullTrace.contains("func5"));
-    Expect.isTrue(fullTrace.contains("func6"));
-    Expect.isTrue(fullTrace.contains("func7"));
-    Expect.isTrue(fullTrace.contains("main"));
-    throw new Exception("This is not a rethrow");
-  }
-}
-
-@pragma("vm:entry-point") // Prevent obfuscation
-int func4() {
-  func3();
-  return 1;
-}
-
-@pragma("vm:entry-point") // Prevent obfuscation
-int func5() {
-  try {
-    func4();
-  } on Object catch (e, s) {
-    var fullTrace = s.toString();
-    Expect.isFalse(fullTrace.contains("func1"));
-    Expect.isFalse(fullTrace.contains("func2"));
-    Expect.isTrue(fullTrace.contains("func3"));
-    Expect.isTrue(fullTrace.contains("func4"));
-    Expect.isTrue(fullTrace.contains("func5"));
-    Expect.isTrue(fullTrace.contains("func6"));
-    Expect.isTrue(fullTrace.contains("func7"));
-    Expect.isTrue(fullTrace.contains("main"));
-  }
-  return 1;
-}
-
-@pragma("vm:entry-point") // Prevent obfuscation
-int func6() {
-  func5();
-  return 1;
-}
-
-@pragma("vm:entry-point") // Prevent obfuscation
-int func7() {
-  func6();
-  return 1;
-}
-
-main() {
-  var i = func7();
-  Expect.equals(1, i);
-}
diff --git a/tests/language_2/stack_trace/rethrow_error_test.dart b/tests/language_2/stack_trace/rethrow_error_test.dart
deleted file mode 100644
index 211e186aeea..00000000000
--- a/tests/language_2/stack_trace/rethrow_error_test.dart
+++ /dev/null
@@ -1,181 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class SubclassOfError extends Error {}
-
-fail() => throw "Fail";
-
-// == Rethrow, skipping through typed handlers. ==
-
-@pragma("vm:entry-point") // Prevent obfuscation
-aa1() {
-  try {
-    bb1();
-    fail();
-  } catch (error
-          , stacktrace // //# withtraceparameter: ok
-  ) {
-    expectTrace(
-        ['gg1', 'ff1', 'ee1', 'dd1', 'cc1', 'bb1', 'aa1'], error.stackTrace);
-    expectTrace(['gg1', 'ff1', 'ee1', 'dd1', 'cc1', 'bb1', 'aa1'], stacktrace); // //# withtraceparameter: continued
-  }
-}
-
-@pragma("vm:entry-point") // Prevent obfuscation
-bb1() => cc1();
-
-@pragma("vm:entry-point") // Prevent obfuscation
-cc1() {
-  try {
-    dd1();
-  } on String catch (e) {
-    fail();
-  } on int catch (e) {
-    fail();
-  }
-}
-
-@pragma("vm:entry-point") // Prevent obfuscation
-dd1() => ee1();
-
-@pragma("vm:entry-point") // Prevent obfuscation
-ee1() {
-  try {
-    ff1();
-  } catch (e) {
-    rethrow;
-  }
-}
-
-@pragma("vm:entry-point") // Prevent obfuscation
-ff1() => gg1();
-
-@pragma("vm:entry-point") // Prevent obfuscation
-gg1() => throw new SubclassOfError();
-
-// == Rethrow, rethrow again in typed handler. ==
-
-@pragma("vm:entry-point") // Prevent obfuscation
-aa2() {
-  try {
-    bb2();
-    fail();
-  } catch (error
-          , stacktrace // //# withtraceparameter: continued
-  ) {
-    expectTrace(
-        ['gg2', 'ff2', 'ee2', 'dd2', 'cc2', 'bb2', 'aa2'], error.stackTrace);
-    expectTrace(['gg2', 'ff2', 'ee2', 'dd2', 'cc2', 'bb2', 'aa2'], stacktrace); // //# withtraceparameter: continued
-  }
-}
-
-@pragma("vm:entry-point") // Prevent obfuscation
-bb2() => cc2();
-
-@pragma("vm:entry-point") // Prevent obfuscation
-cc2() {
-  try {
-    dd2();
-  } on SubclassOfError catch (e) {
-    rethrow;
-  } on int catch (e) {
-    fail();
-  }
-}
-
-@pragma("vm:entry-point") // Prevent obfuscation
-dd2() => ee2();
-
-@pragma("vm:entry-point") // Prevent obfuscation
-ee2() {
-  try {
-    ff2();
-  } catch (e) {
-    rethrow;
-  }
-}
-
-@pragma("vm:entry-point") // Prevent obfuscation
-ff2() => gg2();
-
-@pragma("vm:entry-point") // Prevent obfuscation
-gg2() => throw new SubclassOfError();
-
-// == Rethrow, with intervening catch without a trace parameter.
-
-@pragma("vm:entry-point") // Prevent obfuscation
-aa3() {
-  try {
-    bb3();
-    fail();
-  } catch (error
-          , stacktrace // //# withtraceparameter: continued
-  ) {
-    expectTrace(
-        ['gg3', 'ff3', 'ee3', 'dd3', 'cc3', 'bb3', 'aa3'], error.stackTrace);
-    expectTrace(['cc3', 'bb3', 'aa3'], stacktrace); // //# withtraceparameter: continued
-  }
-}
-
-@pragma("vm:entry-point") // Prevent obfuscation
-bb3() => cc3();
-
-@pragma("vm:entry-point") // Prevent obfuscation
-cc3() {
-  try {
-    dd3();
-  } catch (e) {
-    throw e;
-  }
-}
-
-@pragma("vm:entry-point") // Prevent obfuscation
-dd3() => ee3();
-
-@pragma("vm:entry-point") // Prevent obfuscation
-ee3() {
-  try {
-    ff3();
-  } catch (e) {
-    rethrow;
-  }
-}
-
-@pragma("vm:entry-point") // Prevent obfuscation
-ff3() => gg3();
-
-@pragma("vm:entry-point") // Prevent obfuscation
-gg3() => throw new SubclassOfError();
-
-expectTrace(functionNames, stacktrace) {
-  // Note we don't expect functionNames to cover the whole trace, only the
-  // top portion, because the frames below main are an implementation detail.
-  var traceLines = stacktrace.toString().split('\n');
-  var expectedIndex = 0;
-  var actualIndex = 0;
-  print(stacktrace);
-  print(functionNames);
-  while (expectedIndex < functionNames.length) {
-    var expected = functionNames[expectedIndex];
-    var actual = traceLines[actualIndex];
-    if (actual.indexOf(expected) == -1) {
-      if (expectedIndex == 0) {
-        actualIndex++; // Skip over some helper frames at the top
-      } else {
-        throw "Expected: $expected actual: $actual";
-      }
-    } else {
-      actualIndex++;
-      expectedIndex++;
-    }
-  }
-}
-
-main() {
-  aa1();
-  aa2();
-  aa3();
-}
diff --git a/tests/language_2/stack_trace/rethrow_nonerror_test.dart b/tests/language_2/stack_trace/rethrow_nonerror_test.dart
deleted file mode 100644
index 3ca985f04e9..00000000000
--- a/tests/language_2/stack_trace/rethrow_nonerror_test.dart
+++ /dev/null
@@ -1,169 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class NotASubclassOfError {}
-
-fail() => throw "Fail";
-
-// == Rethrow, skipping through typed handlers. ==
-
-@pragma("vm:entry-point")
-aa1() {
-  try {
-    bb1();
-    fail();
-  } catch (exception, stacktrace) {
-    expectTrace(['gg1', 'ff1', 'ee1', 'dd1', 'cc1', 'bb1', 'aa1'], stacktrace);
-  }
-}
-
-@pragma("vm:entry-point")
-bb1() => cc1();
-
-@pragma("vm:entry-point")
-cc1() {
-  try {
-    dd1();
-  } on String catch (e) {
-    fail();
-  } on int catch (e) {
-    fail();
-  }
-}
-
-@pragma("vm:entry-point")
-dd1() => ee1();
-
-@pragma("vm:entry-point")
-ee1() {
-  try {
-    ff1();
-  } catch (e) {
-    rethrow;
-  }
-}
-
-@pragma("vm:entry-point")
-ff1() => gg1();
-
-@pragma("vm:entry-point")
-gg1() => throw new NotASubclassOfError();
-
-// == Rethrow, rethrow again in typed handler. ==
-
-@pragma("vm:entry-point")
-aa2() {
-  try {
-    bb2();
-    fail();
-  } catch (exception, stacktrace) {
-    expectTrace(['gg2', 'ff2', 'ee2', 'dd2', 'cc2', 'bb2', 'aa2'], stacktrace);
-  }
-}
-
-@pragma("vm:entry-point")
-bb2() => cc2();
-
-@pragma("vm:entry-point")
-cc2() {
-  try {
-    dd2();
-  } on NotASubclassOfError catch (e) {
-    rethrow;
-  } on int catch (e) {
-    fail();
-  }
-}
-
-@pragma("vm:entry-point")
-dd2() => ee2();
-
-@pragma("vm:entry-point")
-ee2() {
-  try {
-    ff2();
-  } catch (e) {
-    rethrow;
-  }
-}
-
-@pragma("vm:entry-point")
-ff2() => gg2();
-
-@pragma("vm:entry-point")
-gg2() => throw new NotASubclassOfError();
-
-// == Rethrow, with intervening catch without a trace parameter.
-
-@pragma("vm:entry-point")
-aa3() {
-  try {
-    bb3();
-    fail();
-  } catch (exception, stacktrace) {
-    expectTrace(['cc3', 'bb3', 'aa3'], stacktrace);
-  }
-}
-
-@pragma("vm:entry-point")
-bb3() => cc3();
-
-@pragma("vm:entry-point")
-cc3() {
-  try {
-    dd3();
-  } catch (e) {
-    throw e;
-  }
-}
-
-@pragma("vm:entry-point")
-dd3() => ee3();
-
-@pragma("vm:entry-point")
-ee3() {
-  try {
-    ff3();
-  } catch (e) {
-    rethrow;
-  }
-}
-
-@pragma("vm:entry-point")
-ff3() => gg3();
-
-@pragma("vm:entry-point")
-gg3() => throw new NotASubclassOfError();
-
-expectTrace(functionNames, stacktrace) {
-  // Note we don't expect functionNames to cover the whole trace, only the
-  // top portion, because the frames below main are an implementation detail.
-  var traceLines = stacktrace.toString().split('\n');
-  var expectedIndex = 0;
-  var actualIndex = 0;
-  print(stacktrace);
-  print(functionNames);
-  while (expectedIndex < functionNames.length) {
-    var expected = functionNames[expectedIndex];
-    var actual = traceLines[actualIndex];
-    if (actual.indexOf(expected) == -1) {
-      if (expectedIndex == 0) {
-        actualIndex++; // Skip over some helper frames at the top
-      } else {
-        throw "Expected: $expected actual: $actual";
-      }
-    } else {
-      actualIndex++;
-      expectedIndex++;
-    }
-  }
-}
-
-main() {
-  aa1();
-  aa2();
-  aa3();
-}
diff --git a/tests/language_2/stack_trace/stack_trace_test.dart b/tests/language_2/stack_trace/stack_trace_test.dart
deleted file mode 100644
index 55797983d88..00000000000
--- a/tests/language_2/stack_trace/stack_trace_test.dart
+++ /dev/null
@@ -1,141 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing throw statement
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class MyException {
-  const MyException(String message) : message_ = message;
-  final String message_;
-}
-
-class Helper {
-  static int f1(int i) {
-    try {
-      i = func();
-      i = 10;
-    } on MyException catch (exception, stacktrace) {
-      i = 50;
-      print(exception.message_);
-      Expect.isNotNull(stacktrace);
-      print(stacktrace);
-    }
-    try {
-      int j;
-      i = func1();
-      i = 200;
-    } on MyException catch (exception, stacktrace) {
-      i = 50;
-      print(exception.message_);
-      Expect.isNotNull(stacktrace);
-      print(stacktrace);
-    }
-    try {
-      int j;
-      i = func2();
-      i = 200;
-    } on MyException catch (exception, stacktrace) {
-      i = 50;
-      print(exception.message_);
-      Expect.isNotNull(stacktrace);
-      print(stacktrace);
-    } finally {
-      i = i + 800;
-    }
-    return i;
-  }
-
-  static int func() {
-    int i = 0;
-    while (i < 10) {
-      i++;
-    }
-    if (i > 0) {
-      throw new MyException("Exception Test for stack trace being printed");
-    }
-    return 10;
-  }
-
-  static int func1() {
-    try {
-      func();
-    } on MyException catch (exception) {
-      throw new MyException("Exception Test for stack trace being printed");
-      ;
-    }
-    return 10;
-  }
-
-  static int func2() {
-    try {
-      func();
-    } on MyException catch (exception) {
-      rethrow;
-    }
-    return 10;
-  }
-}
-
-class StackTraceTest {
-  static testMain() {
-    Expect.equals(850, Helper.f1(1));
-  }
-}
-
-// Test that the full stack trace is generated for rethrow.
-class RethrowStacktraceTest {
-  var config = 0;
-
-  @pragma("vm:entry-point") // Prevent obfuscation
-  @pragma("vm:never-inline") // Prevent inlining
-  issue12940() {
-    throw "Progy";
-  }
-
-  b() {
-    issue12940();
-  }
-
-  c() {
-    if (config == 0) {
-      try {
-        b();
-      } catch (e) {
-        rethrow;
-      }
-    } else {
-      try {
-        b();
-      } catch (e, s) {
-        rethrow;
-      }
-    }
-  }
-
-  d() {
-    c();
-  }
-
-  testBoth() {
-    for (config = 0; config < 2; config++) {
-      try {
-        d();
-      } catch (e, s) {
-        Expect.contains("issue12940", s.toString());
-      }
-    }
-  }
-
-  static testMain() {
-    var test = new RethrowStacktraceTest();
-    test.testBoth();
-  }
-}
-
-main() {
-  StackTraceTest.testMain();
-  RethrowStacktraceTest.testMain();
-}
diff --git a/tests/language_2/stack_trace/stacktrace_test.dart b/tests/language_2/stack_trace/stacktrace_test.dart
deleted file mode 100644
index 691f9688ad2..00000000000
--- a/tests/language_2/stack_trace/stacktrace_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that a stack trace is properly terminated (issue 8850).
-
-import "package:expect/expect.dart";
-
-void main() {
-  var ex = new Exception("fail");
-  try {
-    throw ex;
-  } on Exception catch (e, st) {
-    Expect.equals(ex, e);
-    Expect.isTrue(st.toString().length > 0);
-  }
-}
diff --git a/tests/language_2/static/call_wrong_argument_count_test.dart b/tests/language_2/static/call_wrong_argument_count_test.dart
deleted file mode 100644
index 4420fc9d76c..00000000000
--- a/tests/language_2/static/call_wrong_argument_count_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Test mismatch in argument counts.
-class Niesen {
-  static int goodCall(int a, int b, int c) {
-    return a + b;
-  }
-}
-
-main() {
-  Niesen.goodCall(1, 2, 3);
-
-  Niesen.goodCall(1, 2, 3, 4);
-  //                       ^
-  // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS
-  //             ^^^^^^^^^^^^
-  // [cfe] Too many positional arguments: 3 allowed, but 4 found.
-}
diff --git a/tests/language_2/static/closure_identical_test.dart b/tests/language_2/static/closure_identical_test.dart
deleted file mode 100644
index 5505a265ab8..00000000000
--- a/tests/language_2/static/closure_identical_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var foo = main;
-
-main() {
-  Expect.equals(main, main);
-  Expect.identical(main, main);
-  Expect.equals(main.hashCode, main.hashCode);
-
-  Expect.equals(main, foo);
-  Expect.identical(main, foo);
-  Expect.equals(main.hashCode, foo.hashCode);
-}
diff --git a/tests/language_2/static/const_field_reserved_name_test.dart b/tests/language_2/static/const_field_reserved_name_test.dart
deleted file mode 100644
index eb00b994f07..00000000000
--- a/tests/language_2/static/const_field_reserved_name_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test for testing redefinition of reserved names as static const fields.
-// Issue https://github.com/dart-archive/dev_compiler/issues/587
-
-import "package:expect/expect.dart";
-
-class Field {
-  static const name = 'Foo';
-}
-
-class StaticConstFieldReservedNameTest {
-  static testMain() {
-    Expect.equals('Foo', Field.name);
-  }
-}
-
-class Foo {
-  int get foo => 42;
-  static final baz = new Foo();
-}
-
-class Bar extends Foo {
-  get foo => 123;
-  Bar.baz();
-}
-
-void main() {
-  StaticConstFieldReservedNameTest.testMain();
-
-  // Regression test for https://github.com/dart-lang/sdk/issues/33621
-  Expect.equals(Bar.baz().foo, 123);
-}
diff --git a/tests/language_2/static/const_field_test.dart b/tests/language_2/static/const_field_test.dart
deleted file mode 100644
index a189147464e..00000000000
--- a/tests/language_2/static/const_field_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing static const fields.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class Spain {
-  static const AG = "Antoni Gaudi";
-  static const SD = "Salvador Dali";
-}
-
-abstract class Switzerland {
-  static const AG = "Alberto Giacometti";
-  static const LC = "Le Corbusier";
-}
-
-class A implements Switzerland {
-  const A() : n = 5;
-  final n;
-  static const a = const A();
-  static const b = 3 + 5;
-  static const c = A.b + 7;
-  static const d = const A();
-  static const s1 = "hula";
-  static const s2 = "hula";
-  static const s3 = "hop";
-  static const d1 = 1.1;
-  static const d2 = 0.55 + 0.55;
-  static const artist2 = Switzerland.AG;
-  static const architect1 = Spain.AG;
-  static const array1 = const <int>[1, 2];
-  static const map1 = const {
-    "Monday": 1,
-    "Tuesday": 2,
-  };
-}
-
-class StaticFinalFieldTest {
-  static testMain() {
-    Expect.equals(15, A.c);
-    Expect.equals(8, A.b);
-    Expect.equals(5, A.a.n);
-    Expect.equals(true, identical(8, A.b));
-    Expect.equals(true, identical(A.a, A.d));
-    Expect.equals(true, identical(A.s1, A.s2));
-    Expect.equals(false, identical(A.s1, A.s3));
-    Expect.equals(false, identical(A.s1, A.b));
-    Expect.equals(true, identical(A.d1, A.d2));
-    Expect.equals(true, Spain.SD == "Salvador Dali");
-    Expect.equals(true, A.artist2 == "Alberto Giacometti");
-    Expect.equals(true, A.architect1 == "Antoni Gaudi");
-    Expect.equals(2, A.map1["Tuesday"]);
-  }
-}
-
-main() {
-  StaticFinalFieldTest.testMain();
-}
diff --git a/tests/language_2/static/field1_runtime_test.dart b/tests/language_2/static/field1_runtime_test.dart
deleted file mode 100644
index c2e9e5c5303..00000000000
--- a/tests/language_2/static/field1_runtime_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test that a static field cannot be read as an instance field.
-
-class Foo {
-  Foo() {}
-  static var x;
-}
-
-class StaticField1Test {
-  static testMain() {
-    if (false) {
-      var foo = new Foo();
-
-    }
-  }
-}
-
-main() {
-  StaticField1Test.testMain();
-}
diff --git a/tests/language_2/static/field1_test.dart b/tests/language_2/static/field1_test.dart
deleted file mode 100644
index 77f9dc31436..00000000000
--- a/tests/language_2/static/field1_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test that a static field cannot be read as an instance field.
-
-// @dart = 2.9
-
-class Foo {
-  Foo() {}
-  static var x;
-}
-
-class StaticField1Test {
-  static testMain() {
-    if (false) {
-      var foo = new Foo();
-      var x = foo.x;
-      //          ^
-      // [analyzer] COMPILE_TIME_ERROR.INSTANCE_ACCESS_TO_STATIC_MEMBER
-      // [cfe] The getter 'x' isn't defined for the class 'Foo'.
-    }
-  }
-}
-
-main() {
-  StaticField1Test.testMain();
-}
diff --git a/tests/language_2/static/field1a_runtime_test.dart b/tests/language_2/static/field1a_runtime_test.dart
deleted file mode 100644
index b1ebe25de3c..00000000000
--- a/tests/language_2/static/field1a_runtime_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test that a static method cannot be read as an instance field.
-
-class Foo {
-  Foo() {}
-  static void m() {}
-}
-
-class StaticField1aTest {
-  static testMain() {
-    if (false) {
-      var foo = new Foo();
-
-    }
-  }
-}
-
-main() {
-  StaticField1aTest.testMain();
-}
diff --git a/tests/language_2/static/field1a_test.dart b/tests/language_2/static/field1a_test.dart
deleted file mode 100644
index 363af9d5790..00000000000
--- a/tests/language_2/static/field1a_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test that a static method cannot be read as an instance field.
-
-// @dart = 2.9
-
-class Foo {
-  Foo() {}
-  static void m() {}
-}
-
-class StaticField1aTest {
-  static testMain() {
-    if (false) {
-      var foo = new Foo();
-      var m = foo.m;
-      //          ^
-      // [analyzer] COMPILE_TIME_ERROR.INSTANCE_ACCESS_TO_STATIC_MEMBER
-      // [cfe] The getter 'm' isn't defined for the class 'Foo'.
-    }
-  }
-}
-
-main() {
-  StaticField1aTest.testMain();
-}
diff --git a/tests/language_2/static/field3_runtime_test.dart b/tests/language_2/static/field3_runtime_test.dart
deleted file mode 100644
index 15bb25b9817..00000000000
--- a/tests/language_2/static/field3_runtime_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test that an instance field cannot be read as a static field.
-
-class Foo {
-  Foo() {}
-  var x;
-  void m() {}
-}
-
-main() {
-  if (false) {
-
-
-
-
-  }
-}
diff --git a/tests/language_2/static/field3_test.dart b/tests/language_2/static/field3_test.dart
deleted file mode 100644
index 44f1f7ae471..00000000000
--- a/tests/language_2/static/field3_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test that an instance field cannot be read as a static field.
-
-// @dart = 2.9
-
-class Foo {
-  Foo() {}
-  var x;
-  void m() {}
-}
-
-main() {
-  if (false) {
-    var x = Foo.x;
-    //          ^
-    // [analyzer] COMPILE_TIME_ERROR.STATIC_ACCESS_TO_INSTANCE_MEMBER
-    // [cfe] Member not found: 'x'.
-    var m = Foo.m;
-    //          ^
-    // [analyzer] COMPILE_TIME_ERROR.STATIC_ACCESS_TO_INSTANCE_MEMBER
-    // [cfe] Member not found: 'm'.
-    Foo.m = 1;
-    //  ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_SETTER
-    // [cfe] Setter not found: 'm'.
-    Foo.x = 1;
-    //  ^
-    // [analyzer] COMPILE_TIME_ERROR.STATIC_ACCESS_TO_INSTANCE_MEMBER
-    // [cfe] Setter not found: 'x'.
-  }
-}
diff --git a/tests/language_2/static/field_override1_test.dart b/tests/language_2/static/field_override1_test.dart
deleted file mode 100644
index 46063be0c51..00000000000
--- a/tests/language_2/static/field_override1_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class Foo {
-  static int get x => 42;
-}
-
-class Bar extends Foo {
-  static int x = 12;
-}
-
-void main() {
-  Expect.equals(12, Bar.x);
-}
diff --git a/tests/language_2/static/field_override2_test.dart b/tests/language_2/static/field_override2_test.dart
deleted file mode 100644
index 177f033d57d..00000000000
--- a/tests/language_2/static/field_override2_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class Foo {
-  static int get x => 42;
-  static void set x(value) {}
-}
-
-class Bar extends Foo {
-  static int x = 12;
-}
-
-void main() {
-  Expect.equals(12, Bar.x);
-}
diff --git a/tests/language_2/static/field_override3_test.dart b/tests/language_2/static/field_override3_test.dart
deleted file mode 100644
index 9ba21fb62a4..00000000000
--- a/tests/language_2/static/field_override3_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class Foo {
-  static int x = 42;
-}
-
-class Bar extends Foo {
-  static int x = 12;
-}
-
-void main() {
-  Expect.equals(12, Bar.x);
-}
diff --git a/tests/language_2/static/field_test.dart b/tests/language_2/static/field_test.dart
deleted file mode 100644
index f21534c183d..00000000000
--- a/tests/language_2/static/field_test.dart
+++ /dev/null
@@ -1,116 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing setting/getting/initializing static fields.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class First {
-  First() {}
-  static var a;
-  static var b;
-  static const int c = 1;
-  static setValues() {
-    a = 24;
-    b = 10;
-    return a + b + c;
-  }
-}
-
-class InitializerTest {
-  static var one;
-  static var two = 2;
-  static var three = 2;
-
-  static checkValueOfThree() {
-    // We need to keep this check separate to prevent three from
-    // getting initialized before the += is executed.
-    Expect.equals(3, three);
-  }
-
-  static void testStaticFieldInitialization() {
-    Expect.equals(null, one);
-    Expect.equals(2, two);
-    one = 11;
-    two = 22;
-    Expect.equals(11, one);
-    Expect.equals(22, two);
-
-    // Assignment operators exercise a different code path.  Make sure
-    // that initialization works here as well.
-    three += 1;
-    checkValueOfThree();
-  }
-}
-
-class StaticFieldTest {
-  static testMain() {
-    First.a = 3;
-    First.b = First.a;
-    Expect.equals(3, First.a);
-    Expect.equals(First.a, First.b);
-    First.b = (First.a = 10);
-    Expect.equals(10, First.a);
-    Expect.equals(10, First.b);
-    First.b = First.a = 15;
-    Expect.equals(15, First.a);
-    Expect.equals(15, First.b);
-    Expect.equals(35, First.setValues());
-    Expect.equals(24, First.a);
-    Expect.equals(10, First.b);
-  }
-}
-
-class StaticField1RunNegativeTest {
-  static // //# 01: compile-time error
-  var x;
-  testMain() {
-    var foo = new StaticField1RunNegativeTest();
-    print(x); // Used to compile 'x' and force any errors.
-    var result = foo.x;
-  }
-}
-
-class StaticField1aRunNegativeTest {
-  static // //# 02: compile-time error, runtime error
-  void m() {}
-
-  testMain() {
-    var foo = new StaticField1aRunNegativeTest();
-    print(m); // Used to compile 'm' and force any errors.
-    var result = foo.m;
-  }
-}
-
-class StaticField2RunNegativeTest {
-  static //# 03:  compile-time error
-  var x;
-
-  testMain() {
-    var foo = new StaticField2RunNegativeTest();
-    print(x); // Used to compile 'x' and force any errors.
-    foo.x = 1;
-  }
-}
-
-class StaticField2aRunNegativeTest {
-  static //  //# 04: compile-time error
-  void m() {}
-
-  testMain() {
-    var foo = new StaticField2aRunNegativeTest();
-    print(m); // Used to compile 'm' and force any errors.
-    foo.m = 1; //# 04:continued
-  }
-}
-
-main() {
-  StaticFieldTest.testMain();
-  InitializerTest.testStaticFieldInitialization();
-  new StaticField1RunNegativeTest().testMain();
-  new StaticField1aRunNegativeTest().testMain();
-  new StaticField2RunNegativeTest().testMain();
-  new StaticField2aRunNegativeTest().testMain();
-}
diff --git a/tests/language_2/static/final_field2_runtime_test.dart b/tests/language_2/static/final_field2_runtime_test.dart
deleted file mode 100644
index 69433ba9cca..00000000000
--- a/tests/language_2/static/final_field2_runtime_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Disallow re-assignment of a final static variable.
-
-class A {
-  static const x = 1;
-}
-
-class B {
-  const B() : n = 5;
-  final n;
-
-  static const b = 3 + 5;
-}
-
-main() {
-
-  new B();
-  print(B.b);
-
-}
diff --git a/tests/language_2/static/final_field2_test.dart b/tests/language_2/static/final_field2_test.dart
deleted file mode 100644
index 04149822dc7..00000000000
--- a/tests/language_2/static/final_field2_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Disallow re-assignment of a final static variable.
-
-// @dart = 2.9
-
-class A {
-  static const x = 1;
-}
-
-class B {
-  const B() : n = 5;
-  final n;
-  static const a;
-  //           ^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_NOT_INITIALIZED
-  // [cfe] The const variable 'a' must be initialized.
-  static const b = 3 + 5;
-}
-
-main() {
-  A.x = 2;
-//  ^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_CONST
-// [cfe] Setter not found: 'x'.
-  new B();
-  print(B.b);
-  print(B.a);
-}
diff --git a/tests/language_2/static/getter_no_setter1_runtime_test.dart b/tests/language_2/static/getter_no_setter1_runtime_test.dart
deleted file mode 100644
index c83846de15f..00000000000
--- a/tests/language_2/static/getter_no_setter1_runtime_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-class Class {
-  static int get getter => 0;
-
-  method() {
-
-  }
-}
-
-main() {
-  new Class().method();
-}
diff --git a/tests/language_2/static/getter_no_setter1_test.dart b/tests/language_2/static/getter_no_setter1_test.dart
deleted file mode 100644
index 818cc6891f8..00000000000
--- a/tests/language_2/static/getter_no_setter1_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class Class {
-  static int get getter => 0;
-
-  method() {
-    getter++;
-//  ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'getter'.
-  }
-}
-
-main() {
-  new Class().method();
-}
diff --git a/tests/language_2/static/getter_no_setter2_runtime_test.dart b/tests/language_2/static/getter_no_setter2_runtime_test.dart
deleted file mode 100644
index 1999fb4be41..00000000000
--- a/tests/language_2/static/getter_no_setter2_runtime_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-class Class {
-  static int get getter => 0;
-
-  method() {
-
-  }
-
-  noSuchMethod(i) => 42;
-}
-
-main() {
-  new Class().method();
-}
diff --git a/tests/language_2/static/getter_no_setter2_test.dart b/tests/language_2/static/getter_no_setter2_test.dart
deleted file mode 100644
index 4656d053eca..00000000000
--- a/tests/language_2/static/getter_no_setter2_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class Class {
-  static int get getter => 0;
-
-  method() {
-    getter++;
-//  ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL_NO_SETTER
-// [cfe] Setter not found: 'getter'.
-  }
-
-  noSuchMethod(i) => 42;
-}
-
-main() {
-  new Class().method();
-}
diff --git a/tests/language_2/static/implicit_closure_test.dart b/tests/language_2/static/implicit_closure_test.dart
deleted file mode 100644
index 666a118d427..00000000000
--- a/tests/language_2/static/implicit_closure_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing invocation of implicit closures.
-// VMOptions=
-// VMOptions=--use_slow_path
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class First {
-  First() {}
-  static int get a {
-    return 10;
-  }
-
-  static var b;
-  static int foo() {
-    return 30;
-  }
-}
-
-class StaticImplicitClosureTest {
-  static void testMain() {
-    Function func = () => 20;
-    Expect.equals(10, First.a);
-    First.b = First.a;
-    Expect.equals(10, First.b);
-    First.b = func;
-    Expect.equals(20, First.b());
-    Function fa = First.foo;
-    Expect.equals(30, fa());
-  }
-}
-
-main() {
-  StaticImplicitClosureTest.testMain();
-}
diff --git a/tests/language_2/static/initializer_type_error_test.dart b/tests/language_2/static/initializer_type_error_test.dart
deleted file mode 100644
index 280e3cccfbf..00000000000
--- a/tests/language_2/static/initializer_type_error_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-int x = "milou";
-//      ^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-// [cfe] A value of type 'String' can't be assigned to a variable of type 'int'.
-
-bool readXThrows() {
-  try {
-    var y = x;
-    return false;
-  } catch (e) {
-    x = 5; // Make sure we do not throw exception a second time.
-    return true;
-  }
-}
-
-main() {
-  int numExceptions = 0;
-  for (int i = 0; i < 8; i++) {
-    if (readXThrows()) {
-      numExceptions++;
-    }
-  }
-  Expect.equals(1, numExceptions);
-}
diff --git a/tests/language_2/static/inline_test.dart b/tests/language_2/static/inline_test.dart
deleted file mode 100644
index 37938b20081..00000000000
--- a/tests/language_2/static/inline_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test inlining of assignments in parameter passing. If [StringScanner.charAt]
-// is inlined, the argument expression [: ++byteOffset :] should not be
-// duplicated.
-
-class StringScanner {
-  static String string;
-  int byteOffset = -1;
-
-  int nextByte(foo) {
-    if (foo) return -2;
-    return charAt(++byteOffset);
-  }
-
-  static int charAt(index) =>
-      (string.length > index) ? string.codeUnitAt(index) : -1;
-}
-
-void main() {
-  var scanner = new StringScanner();
-  StringScanner.string = 'az9';
-  Expect.equals(0x61, scanner.nextByte(false)); // Expect a.
-  Expect.equals(0x7A, scanner.nextByte(false)); // Expect z.
-  Expect.equals(0x39, scanner.nextByte(false)); // Expect 9.
-  Expect.equals(-1, scanner.nextByte(false));
-}
diff --git a/tests/language_2/static/parameter_test.dart b/tests/language_2/static/parameter_test.dart
deleted file mode 100644
index ecd35e58258..00000000000
--- a/tests/language_2/static/parameter_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-foo(x
-    , static int y // //# 01: syntax error
-    , final static y // //# 02: syntax error
-    , {static y} // //# 03: syntax error
-    , [static y] // //# 04: syntax error
-    ) {}
-
-class C {
-  bar(x
-      , static int y // //# 05: syntax error
-      , final static y // //# 06: syntax error
-      , {static y} // //# 07: syntax error
-      , [static y] // //# 08: syntax error
-      ) {}
-
-  static baz(x
-      , static int y // //# 09: syntax error
-      , final static y // //# 10: syntax error
-      , {static y} // //# 11: syntax error
-      , [static y] // //# 12: syntax error
-      ) {}
-}
-
-main() {
-  foo(1
-      , 1 // //# 01: continued
-      , 1 // //# 02: continued
-      , y: 1 // //# 03: continued
-      , 1 // //# 04: continued
-      );
-  new C().bar(1
-      , 1 // //# 05: continued
-      , 1 // //# 06: continued
-      , y: 1 // //# 07: continued
-      , 1 // //# 08: continued
-      );
-  C.baz(1
-      , 1 // //# 09: continued
-      , 1 // //# 10: continued
-      , y: 1 // //# 11: continued
-      , 1 // //# 12: continued
-      );
-}
diff --git a/tests/language_2/static/postfix_operator_test.dart b/tests/language_2/static/postfix_operator_test.dart
deleted file mode 100644
index 6fc9c03d432..00000000000
--- a/tests/language_2/static/postfix_operator_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-int a = 0;
-int b = 0;
-
-withTryFinally() {
-  bool inIt = false;
-  // Do a try/finally to potentially force a non-optimizing compiler.
-  try {
-    if (a++ == 0) {
-      inIt = true;
-    }
-  } finally {}
-  Expect.isTrue(inIt);
-}
-
-withoutTryFinally() {
-  bool inIt = false;
-  if (b++ == 0) {
-    inIt = true;
-  }
-  Expect.isTrue(inIt);
-}
-
-main() {
-  withTryFinally();
-  withoutTryFinally();
-}
diff --git a/tests/language_2/static/setter_conflicts_test.dart b/tests/language_2/static/setter_conflicts_test.dart
deleted file mode 100644
index 7907a518d4c..00000000000
--- a/tests/language_2/static/setter_conflicts_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class C {
-  static set foo(int x) {}
-
-  int foo(int x) => x; //# 01: compile-time error
-  static int foo(int x) => x; //# 02: compile-time error
-
-  int foo = 3; //# 03: compile-time error
-  final int foo = 4; //# 04: compile-time error
-  static int foo = 5; //# 05: compile-time error
-  static final int foo = 6; //# 06: ok
-
-  int get foo => 7; //# 07: compile-time error
-  static int get foo => 8; //# 08: ok
-
-  set foo(int x) {} //# 09: compile-time error
-  static set foo(int x) {} //# 10: compile-time error
-
-  C.foo(int x) {} //# 11: compile-time error
-  factory C.foo(int x) => null; //# 12: compile-time error
-}
-
-main() {}
diff --git a/tests/language_2/static/setter_get_runtime_test.dart b/tests/language_2/static/setter_get_runtime_test.dart
deleted file mode 100644
index 9d464b330fd..00000000000
--- a/tests/language_2/static/setter_get_runtime_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-class Class {
-  static set o(_) {}
-
-  noSuchMethod(_) => 42;
-}
-
-main() {
-
-}
diff --git a/tests/language_2/static/setter_get_test.dart b/tests/language_2/static/setter_get_test.dart
deleted file mode 100644
index c9f4d25a00b..00000000000
--- a/tests/language_2/static/setter_get_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class Class {
-  static set o(_) {}
-  m() => o;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-  // [cfe] Getter not found: 'o'.
-  noSuchMethod(_) => 42;
-}
-
-main() {
-  Expect.throws(() => new Class().m());
-}
diff --git a/tests/language_2/static/static_setter_on_const_field_test.dart b/tests/language_2/static/static_setter_on_const_field_test.dart
deleted file mode 100644
index 354e7242922..00000000000
--- a/tests/language_2/static/static_setter_on_const_field_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Tests that static setters of const fields are properly invoked on set.
-
-class A {
-  static const int field = 0;
-  static void set field(int value) {
-    Expect.equals(value, 100);
-    B.count += 1;
-  }
-}
-
-class B {
-  static int count = 0;
-}
-
-main() {
-  Expect.equals(B.count, 0);
-  A.field = 100;
-  Expect.equals(B.count, 1);
-  Expect.equals(A.field, 0);
-  A.field = 100;
-  Expect.equals(B.count, 2);
-  Expect.equals(A.field, 0);
-}
diff --git a/tests/language_2/static/top_level_runtime_test.dart b/tests/language_2/static/top_level_runtime_test.dart
deleted file mode 100644
index 215451f5e2e..00000000000
--- a/tests/language_2/static/top_level_runtime_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-
-
-
-
-
-
-
-
-
-
-void main() {}
diff --git a/tests/language_2/static/top_level_test.dart b/tests/language_2/static/top_level_test.dart
deleted file mode 100644
index d29cfd8648f..00000000000
--- a/tests/language_2/static/top_level_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-static method() { }
-// [error line 7, column 1, length 6]
-// [analyzer] SYNTACTIC_ERROR.EXTRANEOUS_MODIFIER
-// [cfe] Can't have modifier 'static' here.
-static var field;
-// [error line 11, column 1, length 6]
-// [analyzer] SYNTACTIC_ERROR.EXTRANEOUS_MODIFIER
-// [cfe] Can't have modifier 'static' here.
-static const finalField = 42;
-// [error line 15, column 1, length 6]
-// [analyzer] SYNTACTIC_ERROR.EXTRANEOUS_MODIFIER
-// [cfe] Can't have modifier 'static' here.
-static const constant = 123;
-// [error line 19, column 1, length 6]
-// [analyzer] SYNTACTIC_ERROR.EXTRANEOUS_MODIFIER
-// [cfe] Can't have modifier 'static' here.
-
-static int typedMethod() => 87;
-// [error line 24, column 1, length 6]
-// [analyzer] SYNTACTIC_ERROR.EXTRANEOUS_MODIFIER
-// [cfe] Can't have modifier 'static' here.
-static int typedField;
-// [error line 28, column 1, length 6]
-// [analyzer] SYNTACTIC_ERROR.EXTRANEOUS_MODIFIER
-// [cfe] Can't have modifier 'static' here.
-static const int typedFinalField = 99;
-// [error line 32, column 1, length 6]
-// [analyzer] SYNTACTIC_ERROR.EXTRANEOUS_MODIFIER
-// [cfe] Can't have modifier 'static' here.
-static const int typedConstant = 1;
-// [error line 36, column 1, length 6]
-// [analyzer] SYNTACTIC_ERROR.EXTRANEOUS_MODIFIER
-// [cfe] Can't have modifier 'static' here.
-
-void main() {}
diff --git a/tests/language_2/static_type_helper.dart b/tests/language_2/static_type_helper.dart
deleted file mode 100644
index 4a7809ac76c..00000000000
--- a/tests/language_2/static_type_helper.dart
+++ /dev/null
@@ -1,90 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-/// Helper to create [Type] values.
-Type typeOf<T>() => T;
-
-/// Ensures a context type of [T] for the operand.
-void context<T>(T x) {}
-
-/// Captures the context type of the call and returns the same type.
-///
-/// Can be used to check the context type as:
-/// ```dart
-/// int x = contextType(1 /* valid value */)..expectStaticType<Exactly<int>>;
-/// ```
-T contextType<T>(Object result) => result as T;
-
-extension StaticType<T> on T {
-  /// Check the static type.
-  ///
-  /// Use as follows (assuming `e` has static type `num`):
-  /// ```dart
-  ///   e.expectStaticType<Exactly<num>>()  // No context type.
-  ///   e.expectStaticType<SubtypeOf<Object>>()  // No context type.
-  ///   e.expectStaticType<SupertypeOf<int>>()  // No context type.
-  /// ```
-  /// or
-  /// ```dart
-  ///   e..expectStaticType<Exactly<num>>()  // Preserve context type.
-  ///   e..expectStaticType<SubtypeOf<Object>>()  // Preserve context type.
-  ///   e..expectStaticType<SupertypeOf<int>>()  // Preserve context type.
-  /// ```
-  /// This will be a *compile-time error* if the static type is not
-  /// as required by the constraints type (the one passed to [Exactly],
-  /// [SubtypeOf] or [SupertypeOf].)
-  T expectStaticType<R extends Exactly<T>>() {
-    return this;
-  }
-
-  /// Invokes [callback] with the static type of `this`.
-  ///
-  /// Allows any operation on the type.
-  T captureStaticType(void Function<X>() callback) {
-    callback<T>();
-    return this;
-  }
-}
-
-/// Invokes [callback] with the static type of [value].
-///
-/// Similar to [StaticType.captureStaticType], but works
-/// for types like `void` and `dynamic` which do not allow
-/// extension methods.
-void captureStaticType<T>(T value, void Function<X>(X value) callback) {
-  callback<T>(value);
-}
-
-/// Use with [StaticType.expectStaticType] to expect precisely the type [T].
-///
-/// Example use:
-/// ```dart
-/// "abc".expectStaticType<Exactly<String>>();
-/// ```
-typedef Exactly<T> = T Function(T);
-
-/// Use with [StaticType.expectStaticType] to expect a subtype of [T].
-///
-/// Example use:
-/// ```dart
-/// num x = 1;
-/// x.expectStaticType<SubtypeOf<Object>>();
-/// ```
-typedef SubtypeOf<T> = Never Function(T);
-
-/// Use with [StaticType.expectStaticType] to expect a supertype of [T].
-///
-/// Example use:
-/// ```dart
-/// num x = 1;
-/// x.expectStaticType<SupertypeOf<int>>();
-/// ```
-typedef SupertypeOf<T> = T Function(Object?);
-
-/// Checks that an expression is assignable to [T1], [T2] and [Object].
-///
-/// This ensures that the static type of the expression is either dynamic,
-/// Never, or a type assignable to both [T1] and [T2], and if those are
-/// unrelated, it must be an intersection type.
-void checkIntersectionType<T1, T2>(T1 v1, T2 v2, Object v3) {}
diff --git a/tests/language_2/string/adjacent_const_string_literals_test.dart b/tests/language_2/string/adjacent_const_string_literals_test.dart
deleted file mode 100644
index 0416f6d9beb..00000000000
--- a/tests/language_2/string/adjacent_const_string_literals_test.dart
+++ /dev/null
@@ -1,119 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Conster {
-  const Conster(this.value);
-
-  final value;
-
-  toString() {
-    return value.toString();
-  }
-}
-
-main() {
-  testEmpty();
-  testInterpolation();
-  testMultiline();
-}
-
-testEmpty() {
-  Expect.equals("", (const Conster("" "" "")).toString());
-  Expect.equals("", (const Conster("" '' "")).toString());
-  Expect.equals("", (const Conster("" "" r"")).toString());
-
-  Expect.equals("a", (const Conster("a" "")).toString());
-  Expect.equals("a", (const Conster("a" '')).toString());
-  Expect.equals("a", (const Conster("a" r'')).toString());
-
-  Expect.equals("b", (const Conster('b' "")).toString());
-  Expect.equals("b", (const Conster('b' '')).toString());
-  Expect.equals("b", (const Conster('b' r'')).toString());
-
-  Expect.equals("c", (const Conster(r'c' "")).toString());
-  Expect.equals("c", (const Conster(r'c' '')).toString());
-  Expect.equals("c", (const Conster(r'c' r'')).toString());
-
-  Expect.equals("a", (const Conster("" "a")).toString());
-  Expect.equals("a", (const Conster("" 'a')).toString());
-  Expect.equals("a", (const Conster("" r'a')).toString());
-
-  Expect.equals("b", (const Conster('' "b")).toString());
-  Expect.equals("b", (const Conster('' 'b')).toString());
-  Expect.equals("b", (const Conster('' r'b')).toString());
-
-  Expect.equals("c", (const Conster(r'' "c")).toString());
-  Expect.equals("c", (const Conster(r'' 'c')).toString());
-  Expect.equals("c", (const Conster(r'' r'c')).toString());
-}
-
-const s = "a";
-
-testInterpolation() {
-  Expect.equals(r"ab", (const Conster("$s" "b")).toString());
-  Expect.equals(r"ab", (const Conster('$s' "b")).toString());
-  Expect.equals(r"$sb", (const Conster(r'$s' "b")).toString());
-
-  Expect.equals(r"-a-b", (const Conster("-$s-" "b")).toString());
-  Expect.equals(r"-a-b", (const Conster('-$s-' "b")).toString());
-  Expect.equals(r"-$s-b", (const Conster(r'-$s-' "b")).toString());
-
-  Expect.equals(r"ba", (const Conster('b' "$s")).toString());
-  Expect.equals(r"ba", (const Conster('b' '$s')).toString());
-  Expect.equals(r"b$s", (const Conster('b' r'$s')).toString());
-
-  Expect.equals(r"b-a-", (const Conster('b' "-$s-")).toString());
-  Expect.equals(r"b-a-", (const Conster('b' '-$s-')).toString());
-  Expect.equals(r"b-$s-", (const Conster('b' r'-$s-')).toString());
-}
-
-testMultiline() {
-  Expect.equals(
-      "abe",
-      (const Conster("a"
-              "b"
-              "e"))
-          .toString());
-  Expect.equals(
-      "a b e",
-      (const Conster("a "
-              "b "
-              "e"))
-          .toString());
-  Expect.equals(
-      "a b e",
-      (const Conster("a"
-              " b"
-              " e"))
-          .toString());
-
-  Expect.equals(
-      "abe",
-      (const Conster("""
-a"""
-              "b"
-              "e"))
-          .toString());
-  Expect.equals(
-      "a b e",
-      (const Conster("""
-a"""
-              " b"
-              " e"))
-          .toString());
-
-  Expect.equals(
-      "abe",
-      (const Conster("""
-a"""
-              """
-b"""
-              """
-e"""))
-          .toString());
-}
diff --git a/tests/language_2/string/adjacent_string_literals_test.dart b/tests/language_2/string/adjacent_string_literals_test.dart
deleted file mode 100644
index 50b6c10daa8..00000000000
--- a/tests/language_2/string/adjacent_string_literals_test.dart
+++ /dev/null
@@ -1,102 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  testEmpty();
-  testInterpolation();
-  testMultiline();
-}
-
-testEmpty() {
-  Expect.equals("", "" "" "");
-  Expect.equals("", "" '' "");
-  Expect.equals("", "" "" r"");
-
-  Expect.equals("a", "a" "");
-  Expect.equals("a", "a" '');
-  Expect.equals("a", "a" r'');
-
-  Expect.equals("b", 'b' "");
-  Expect.equals("b", 'b' '');
-  Expect.equals("b", 'b' r'');
-
-  Expect.equals("c", r'c' "");
-  Expect.equals("c", r'c' '');
-  Expect.equals("c", r'c' r'');
-
-  Expect.equals("a", "" "a");
-  Expect.equals("a", "" 'a');
-  Expect.equals("a", "" r'a');
-
-  Expect.equals("b", '' "b");
-  Expect.equals("b", '' 'b');
-  Expect.equals("b", '' r'b');
-
-  Expect.equals("c", r'' "c");
-  Expect.equals("c", r'' 'c');
-  Expect.equals("c", r'' r'c');
-}
-
-testInterpolation() {
-  var s = "a";
-  Expect.equals(r"ab", "$s" "b");
-  Expect.equals(r"ab", '$s' "b");
-  Expect.equals(r"$sb", r'$s' "b");
-
-  Expect.equals(r"-a-b", "-$s-" "b");
-  Expect.equals(r"-a-b", '-$s-' "b");
-  Expect.equals(r"-$s-b", r'-$s-' "b");
-
-  Expect.equals(r"ba", 'b' "$s");
-  Expect.equals(r"ba", 'b' '$s');
-  Expect.equals(r"b$s", 'b' r'$s');
-
-  Expect.equals(r"b-a-", 'b' "-$s-");
-  Expect.equals(r"b-a-", 'b' '-$s-');
-  Expect.equals(r"b-$s-", 'b' r'-$s-');
-}
-
-testMultiline() {
-  Expect.equals(
-      "abe",
-      "a"
-      "b"
-      "e");
-  Expect.equals(
-      "a b e",
-      "a "
-      "b "
-      "e");
-  Expect.equals(
-      "a b e",
-      "a"
-      " b"
-      " e");
-
-  Expect.equals(
-      "abe",
-      """
-a"""
-      "b"
-      "e");
-  Expect.equals(
-      "a b e",
-      """
-a"""
-      " b"
-      " e");
-
-  Expect.equals(
-      "abe",
-      """
-a"""
-      """
-b"""
-      """
-e""");
-}
diff --git a/tests/language_2/string/bad_raw_string_runtime_test.dart b/tests/language_2/string/bad_raw_string_runtime_test.dart
deleted file mode 100644
index 873ad3eb6d2..00000000000
--- a/tests/language_2/string/bad_raw_string_runtime_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-main() {
-  // Raw String may not contain newline (may not be multi-line).
-  String x = ''
-
-
-
-
-      // Test that a raw string containing just one character, a \n char, fails.
-      // Enclose the test string in a bigger multiline string, except in case 03:
-
-      """
-
-    r'
-'
-
-    """
-
-      ;
-}
diff --git a/tests/language_2/string/bad_raw_string_test.dart b/tests/language_2/string/bad_raw_string_test.dart
deleted file mode 100644
index 794872a4c7c..00000000000
--- a/tests/language_2/string/bad_raw_string_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  // Raw String may not contain newline (may not be multi-line).
-  String x = ''
-    r'
-//  ^
-// [cfe] String starting with r' must end with '.
-//   ^
-// [analyzer] SYNTACTIC_ERROR.UNTERMINATED_STRING_LITERAL
-'
-// [error line 15, column 1, length 1]
-// [analyzer] SYNTACTIC_ERROR.UNTERMINATED_STRING_LITERAL
-// [cfe] String starting with ' must end with '.
-    r"
-//  ^
-// [cfe] String starting with r" must end with ".
-//   ^
-// [analyzer] SYNTACTIC_ERROR.UNTERMINATED_STRING_LITERAL
-"
-// [error line 24, column 1, length 1]
-// [analyzer] SYNTACTIC_ERROR.UNTERMINATED_STRING_LITERAL
-// [cfe] String starting with " must end with ".
-
-      // Test that a raw string containing just one character, a \n char, fails.
-      // Enclose the test string in a bigger multiline string, except in case 03:
-    '''
-      """
-    '''
-    r'
-//  ^
-// [cfe] String starting with r' must end with '.
-//   ^
-// [analyzer] SYNTACTIC_ERROR.UNTERMINATED_STRING_LITERAL
-'
-// [error line 39, column 1, length 1]
-// [analyzer] SYNTACTIC_ERROR.UNTERMINATED_STRING_LITERAL
-// [cfe] String starting with ' must end with '.
-    '''
-    """
-    '''
-      ;
-}
diff --git a/tests/language_2/string/char_escape_test.dart b/tests/language_2/string/char_escape_test.dart
deleted file mode 100644
index 4ffc220cafa..00000000000
--- a/tests/language_2/string/char_escape_test.dart
+++ /dev/null
@@ -1,535 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for reading escape sequences in string literals
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class CharEscapeTest {
-  static testMain() {
-    var x00 = "\x00";
-    var u0000 = "\u0000";
-    var v0 = "\u{0}";
-    var v00 = "\u{00}";
-    var v000 = "\u{000}";
-    var v0000 = "\u{0000}";
-    var v00000 = "\u{00000}";
-    var v000000 = "\u{000000}";
-    Expect.equals(1, x00.length);
-    Expect.equals(1, u0000.length);
-    Expect.equals(1, v0.length);
-    Expect.equals(1, v00.length);
-    Expect.equals(1, v000.length);
-    Expect.equals(1, v0000.length);
-    Expect.equals(1, v00000.length);
-    Expect.equals(1, v000000.length);
-    Expect.equals(0, x00.codeUnitAt(0));
-    Expect.equals(0, u0000.codeUnitAt(0));
-    Expect.equals(0, v0.codeUnitAt(0));
-    Expect.equals(0, v00.codeUnitAt(0));
-    Expect.equals(0, v000.codeUnitAt(0));
-    Expect.equals(0, v0000.codeUnitAt(0));
-    Expect.equals(0, v00000.codeUnitAt(0));
-    Expect.equals(0, v000000.codeUnitAt(0));
-    Expect.equals("\x00", new String.fromCharCodes([0]));
-    Expect.equals("\u0000", new String.fromCharCodes([0]));
-    Expect.equals("\u{0}", new String.fromCharCodes([0]));
-    Expect.equals("\u{00}", new String.fromCharCodes([0]));
-    Expect.equals("\u{000}", new String.fromCharCodes([0]));
-    Expect.equals("\u{0000}", new String.fromCharCodes([0]));
-    Expect.equals("\u{00000}", new String.fromCharCodes([0]));
-    Expect.equals("\u{000000}", new String.fromCharCodes([0]));
-
-    var x01 = "\x01";
-    var u0001 = "\u0001";
-    var v1 = "\u{1}";
-    var v01 = "\u{01}";
-    var v001 = "\u{001}";
-    var v0001 = "\u{0001}";
-    var v00001 = "\u{00001}";
-    var v000001 = "\u{000001}";
-    Expect.equals(1, x01.length);
-    Expect.equals(1, u0001.length);
-    Expect.equals(1, v1.length);
-    Expect.equals(1, v01.length);
-    Expect.equals(1, v001.length);
-    Expect.equals(1, v0001.length);
-    Expect.equals(1, v00001.length);
-    Expect.equals(1, v000001.length);
-    Expect.equals(1, x01.codeUnitAt(0));
-    Expect.equals(1, u0001.codeUnitAt(0));
-    Expect.equals(1, v1.codeUnitAt(0));
-    Expect.equals(1, v01.codeUnitAt(0));
-    Expect.equals(1, v001.codeUnitAt(0));
-    Expect.equals(1, v0001.codeUnitAt(0));
-    Expect.equals(1, v00001.codeUnitAt(0));
-    Expect.equals(1, v000001.codeUnitAt(0));
-    Expect.equals("\x01", new String.fromCharCodes([1]));
-    Expect.equals("\u0001", new String.fromCharCodes([1]));
-    Expect.equals("\u{1}", new String.fromCharCodes([1]));
-    Expect.equals("\u{01}", new String.fromCharCodes([1]));
-    Expect.equals("\u{001}", new String.fromCharCodes([1]));
-    Expect.equals("\u{0001}", new String.fromCharCodes([1]));
-    Expect.equals("\u{00001}", new String.fromCharCodes([1]));
-    Expect.equals("\u{000001}", new String.fromCharCodes([1]));
-
-    var x55 = "\x55";
-    var u0055 = "\u0055";
-    var v55 = "\u{55}";
-    var v055 = "\u{055}";
-    var v0055 = "\u{0055}";
-    var v00055 = "\u{00055}";
-    var v000055 = "\u{000055}";
-    Expect.equals(1, x55.length);
-    Expect.equals(1, u0055.length);
-    Expect.equals(1, v55.length);
-    Expect.equals(1, v055.length);
-    Expect.equals(1, v0055.length);
-    Expect.equals(1, v00055.length);
-    Expect.equals(1, v000055.length);
-    Expect.equals(0x55, x55.codeUnitAt(0));
-    Expect.equals(0x55, u0055.codeUnitAt(0));
-    Expect.equals(0x55, v55.codeUnitAt(0));
-    Expect.equals(0x55, v055.codeUnitAt(0));
-    Expect.equals(0x55, v0055.codeUnitAt(0));
-    Expect.equals(0x55, v00055.codeUnitAt(0));
-    Expect.equals(0x55, v000055.codeUnitAt(0));
-    Expect.equals("\x55", new String.fromCharCodes([0x55]));
-    Expect.equals("\u0055", new String.fromCharCodes([0x55]));
-    Expect.equals("\u{55}", new String.fromCharCodes([0x55]));
-    Expect.equals("\u{055}", new String.fromCharCodes([0x55]));
-    Expect.equals("\u{0055}", new String.fromCharCodes([0x55]));
-    Expect.equals("\u{00055}", new String.fromCharCodes([0x55]));
-    Expect.equals("\u{000055}", new String.fromCharCodes([0x55]));
-
-    var x7F = "\x7F";
-    var u007F = "\u007F";
-    var v7F = "\u{7F}";
-    var v07F = "\u{07F}";
-    var v007F = "\u{007F}";
-    var v0007F = "\u{0007F}";
-    var v00007F = "\u{00007F}";
-    Expect.equals(1, x7F.length);
-    Expect.equals(1, u007F.length);
-    Expect.equals(1, v7F.length);
-    Expect.equals(1, v07F.length);
-    Expect.equals(1, v007F.length);
-    Expect.equals(1, v0007F.length);
-    Expect.equals(1, v00007F.length);
-    Expect.equals(0x7F, x7F.codeUnitAt(0));
-    Expect.equals(0x7F, u007F.codeUnitAt(0));
-    Expect.equals(0x7F, v7F.codeUnitAt(0));
-    Expect.equals(0x7F, v07F.codeUnitAt(0));
-    Expect.equals(0x7F, v007F.codeUnitAt(0));
-    Expect.equals(0x7F, v0007F.codeUnitAt(0));
-    Expect.equals(0x7F, v00007F.codeUnitAt(0));
-    Expect.equals("\x7F", new String.fromCharCodes([0x7F]));
-    Expect.equals("\u007F", new String.fromCharCodes([0x7F]));
-    Expect.equals("\u{7F}", new String.fromCharCodes([0x7F]));
-    Expect.equals("\u{07F}", new String.fromCharCodes([0x7F]));
-    Expect.equals("\u{007F}", new String.fromCharCodes([0x7F]));
-    Expect.equals("\u{0007F}", new String.fromCharCodes([0x7F]));
-    Expect.equals("\u{00007F}", new String.fromCharCodes([0x7F]));
-
-    var x80 = "\x80";
-    var u0080 = "\u0080";
-    var v80 = "\u{80}";
-    var v080 = "\u{080}";
-    var v0080 = "\u{0080}";
-    var v00080 = "\u{00080}";
-    var v000080 = "\u{000080}";
-    Expect.equals(1, x80.length);
-    Expect.equals(1, u0080.length);
-    Expect.equals(1, v80.length);
-    Expect.equals(1, v080.length);
-    Expect.equals(1, v0080.length);
-    Expect.equals(1, v00080.length);
-    Expect.equals(1, v000080.length);
-    Expect.equals(0x80, x80.codeUnitAt(0));
-    Expect.equals(0x80, u0080.codeUnitAt(0));
-    Expect.equals(0x80, v80.codeUnitAt(0));
-    Expect.equals(0x80, v080.codeUnitAt(0));
-    Expect.equals(0x80, v0080.codeUnitAt(0));
-    Expect.equals(0x80, v00080.codeUnitAt(0));
-    Expect.equals(0x80, v000080.codeUnitAt(0));
-    Expect.equals("\x80", new String.fromCharCodes([0x80]));
-    Expect.equals("\u0080", new String.fromCharCodes([0x80]));
-    Expect.equals("\u{80}", new String.fromCharCodes([0x80]));
-    Expect.equals("\u{080}", new String.fromCharCodes([0x80]));
-    Expect.equals("\u{0080}", new String.fromCharCodes([0x80]));
-    Expect.equals("\u{00080}", new String.fromCharCodes([0x80]));
-    Expect.equals("\u{000080}", new String.fromCharCodes([0x80]));
-
-    var xAA = "\xAA";
-    var u00AA = "\u00AA";
-    var vAA = "\u{AA}";
-    var v0AA = "\u{0AA}";
-    var v00AA = "\u{00AA}";
-    var v000AA = "\u{000AA}";
-    var v0000AA = "\u{0000AA}";
-    Expect.equals(1, xAA.length);
-    Expect.equals(1, u00AA.length);
-    Expect.equals(1, vAA.length);
-    Expect.equals(1, v0AA.length);
-    Expect.equals(1, v00AA.length);
-    Expect.equals(1, v000AA.length);
-    Expect.equals(1, v0000AA.length);
-    Expect.equals(0xAA, xAA.codeUnitAt(0));
-    Expect.equals(0xAA, u00AA.codeUnitAt(0));
-    Expect.equals(0xAA, vAA.codeUnitAt(0));
-    Expect.equals(0xAA, v0AA.codeUnitAt(0));
-    Expect.equals(0xAA, v00AA.codeUnitAt(0));
-    Expect.equals(0xAA, v000AA.codeUnitAt(0));
-    Expect.equals(0xAA, v0000AA.codeUnitAt(0));
-    Expect.equals("\xAA", new String.fromCharCodes([0xAA]));
-    Expect.equals("\u00AA", new String.fromCharCodes([0xAA]));
-    Expect.equals("\u{AA}", new String.fromCharCodes([0xAA]));
-    Expect.equals("\u{0AA}", new String.fromCharCodes([0xAA]));
-    Expect.equals("\u{00AA}", new String.fromCharCodes([0xAA]));
-    Expect.equals("\u{000AA}", new String.fromCharCodes([0xAA]));
-    Expect.equals("\u{0000AA}", new String.fromCharCodes([0xAA]));
-
-    var xFE = "\xFE";
-    var u00FE = "\u00FE";
-    var vFE = "\u{FE}";
-    var v0FE = "\u{0FE}";
-    var v00FE = "\u{00FE}";
-    var v000FE = "\u{000FE}";
-    var v0000FE = "\u{0000FE}";
-    Expect.equals(1, xFE.length);
-    Expect.equals(1, u00FE.length);
-    Expect.equals(1, vFE.length);
-    Expect.equals(1, v0FE.length);
-    Expect.equals(1, v00FE.length);
-    Expect.equals(1, v000FE.length);
-    Expect.equals(1, v0000FE.length);
-    Expect.equals(0xFE, xFE.codeUnitAt(0));
-    Expect.equals(0xFE, u00FE.codeUnitAt(0));
-    Expect.equals(0xFE, vFE.codeUnitAt(0));
-    Expect.equals(0xFE, v0FE.codeUnitAt(0));
-    Expect.equals(0xFE, v00FE.codeUnitAt(0));
-    Expect.equals(0xFE, v000FE.codeUnitAt(0));
-    Expect.equals(0xFE, v0000FE.codeUnitAt(0));
-    Expect.equals("\xFE", new String.fromCharCodes([0xFE]));
-    Expect.equals("\u00FE", new String.fromCharCodes([0xFE]));
-    Expect.equals("\u{FE}", new String.fromCharCodes([0xFE]));
-    Expect.equals("\u{0FE}", new String.fromCharCodes([0xFE]));
-    Expect.equals("\u{00FE}", new String.fromCharCodes([0xFE]));
-    Expect.equals("\u{000FE}", new String.fromCharCodes([0xFE]));
-    Expect.equals("\u{0000FE}", new String.fromCharCodes([0xFE]));
-
-    var xFF = "\xFF";
-    var u00FF = "\u00FF";
-    var vFF = "\u{FF}";
-    var v0FF = "\u{0FF}";
-    var v00FF = "\u{00FF}";
-    var v000FF = "\u{000FF}";
-    var v0000FF = "\u{0000FF}";
-    Expect.equals(1, xFF.length);
-    Expect.equals(1, u00FF.length);
-    Expect.equals(1, vFF.length);
-    Expect.equals(1, v0FF.length);
-    Expect.equals(1, v00FF.length);
-    Expect.equals(1, v000FF.length);
-    Expect.equals(1, v0000FF.length);
-    Expect.equals(0xFF, xFF.codeUnitAt(0));
-    Expect.equals(0xFF, u00FF.codeUnitAt(0));
-    Expect.equals(0xFF, vFF.codeUnitAt(0));
-    Expect.equals(0xFF, v0FF.codeUnitAt(0));
-    Expect.equals(0xFF, v00FF.codeUnitAt(0));
-    Expect.equals(0xFF, v000FF.codeUnitAt(0));
-    Expect.equals(0xFF, v0000FF.codeUnitAt(0));
-    Expect.equals("\xFF", new String.fromCharCodes([0xFF]));
-    Expect.equals("\u00FF", new String.fromCharCodes([0xFF]));
-    Expect.equals("\u{FF}", new String.fromCharCodes([0xFF]));
-    Expect.equals("\u{0FF}", new String.fromCharCodes([0xFF]));
-    Expect.equals("\u{00FF}", new String.fromCharCodes([0xFF]));
-    Expect.equals("\u{000FF}", new String.fromCharCodes([0xFF]));
-    Expect.equals("\u{0000FF}", new String.fromCharCodes([0xFF]));
-
-    var u1000 = "\u1000";
-    var v1000 = "\u{1000}";
-    var v01000 = "\u{01000}";
-    var v001000 = "\u{001000}";
-    Expect.equals(1, u1000.length);
-    Expect.equals(1, v1000.length);
-    Expect.equals(1, v01000.length);
-    Expect.equals(1, v001000.length);
-    Expect.equals(0x1000, u1000.codeUnitAt(0));
-    Expect.equals(0x1000, v1000.codeUnitAt(0));
-    Expect.equals(0x1000, v01000.codeUnitAt(0));
-    Expect.equals(0x1000, v001000.codeUnitAt(0));
-    Expect.equals("\u1000", new String.fromCharCodes([0x1000]));
-    Expect.equals("\u{1000}", new String.fromCharCodes([0x1000]));
-    Expect.equals("\u{01000}", new String.fromCharCodes([0x1000]));
-    Expect.equals("\u{001000}", new String.fromCharCodes([0x1000]));
-
-    var u5555 = "\u5555";
-    var v5555 = "\u{5555}";
-    var v05555 = "\u{05555}";
-    var v005555 = "\u{005555}";
-    Expect.equals(1, u5555.length);
-    Expect.equals(1, v5555.length);
-    Expect.equals(1, v05555.length);
-    Expect.equals(1, v005555.length);
-    Expect.equals(0x5555, u5555.codeUnitAt(0));
-    Expect.equals(0x5555, v5555.codeUnitAt(0));
-    Expect.equals(0x5555, v05555.codeUnitAt(0));
-    Expect.equals(0x5555, v005555.codeUnitAt(0));
-    Expect.equals("\u5555", new String.fromCharCodes([0x5555]));
-    Expect.equals("\u{5555}", new String.fromCharCodes([0x5555]));
-    Expect.equals("\u{05555}", new String.fromCharCodes([0x5555]));
-    Expect.equals("\u{005555}", new String.fromCharCodes([0x5555]));
-
-    var u7FFF = "\u7FFF";
-    var v7FFF = "\u{7FFF}";
-    var v07FFF = "\u{07FFF}";
-    var v007FFF = "\u{007FFF}";
-    Expect.equals(1, u7FFF.length);
-    Expect.equals(1, v7FFF.length);
-    Expect.equals(1, v07FFF.length);
-    Expect.equals(1, v007FFF.length);
-    Expect.equals(0x7FFF, u7FFF.codeUnitAt(0));
-    Expect.equals(0x7FFF, v7FFF.codeUnitAt(0));
-    Expect.equals(0x7FFF, v07FFF.codeUnitAt(0));
-    Expect.equals(0x7FFF, v007FFF.codeUnitAt(0));
-    Expect.equals("\u7FFF", new String.fromCharCodes([0x7FFF]));
-    Expect.equals("\u{7FFF}", new String.fromCharCodes([0x7FFF]));
-    Expect.equals("\u{07FFF}", new String.fromCharCodes([0x7FFF]));
-    Expect.equals("\u{007FFF}", new String.fromCharCodes([0x7FFF]));
-
-    var u8000 = "\u8000";
-    var v8000 = "\u{8000}";
-    var v08000 = "\u{08000}";
-    var v008000 = "\u{008000}";
-    Expect.equals(1, u8000.length);
-    Expect.equals(1, v8000.length);
-    Expect.equals(1, v08000.length);
-    Expect.equals(1, v008000.length);
-    Expect.equals(0x8000, u8000.codeUnitAt(0));
-    Expect.equals(0x8000, v8000.codeUnitAt(0));
-    Expect.equals(0x8000, v08000.codeUnitAt(0));
-    Expect.equals(0x8000, v008000.codeUnitAt(0));
-    Expect.equals("\u8000", new String.fromCharCodes([0x8000]));
-    Expect.equals("\u{8000}", new String.fromCharCodes([0x8000]));
-    Expect.equals("\u{08000}", new String.fromCharCodes([0x8000]));
-    Expect.equals("\u{008000}", new String.fromCharCodes([0x8000]));
-
-    var uAAAA = "\uAAAA";
-    var vAAAA = "\u{AAAA}";
-    var v0AAAA = "\u{0AAAA}";
-    var v00AAAA = "\u{00AAAA}";
-    Expect.equals(1, uAAAA.length);
-    Expect.equals(1, vAAAA.length);
-    Expect.equals(1, v0AAAA.length);
-    Expect.equals(1, v00AAAA.length);
-    Expect.equals(0xAAAA, uAAAA.codeUnitAt(0));
-    Expect.equals(0xAAAA, vAAAA.codeUnitAt(0));
-    Expect.equals(0xAAAA, v0AAAA.codeUnitAt(0));
-    Expect.equals(0xAAAA, v00AAAA.codeUnitAt(0));
-    Expect.equals("\uAAAA", new String.fromCharCodes([0xAAAA]));
-    Expect.equals("\u{AAAA}", new String.fromCharCodes([0xAAAA]));
-    Expect.equals("\u{0AAAA}", new String.fromCharCodes([0xAAAA]));
-    Expect.equals("\u{00AAAA}", new String.fromCharCodes([0xAAAA]));
-
-    var uFFFE = "\uFFFE";
-    var vFFFE = "\u{FFFE}";
-    var v0FFFE = "\u{0FFFE}";
-    var v00FFFE = "\u{00FFFE}";
-    Expect.equals(1, uFFFE.length);
-    Expect.equals(1, vFFFE.length);
-    Expect.equals(1, v0FFFE.length);
-    Expect.equals(1, v00FFFE.length);
-    Expect.equals(0xFFFE, uFFFE.codeUnitAt(0));
-    Expect.equals(0xFFFE, vFFFE.codeUnitAt(0));
-    Expect.equals(0xFFFE, v0FFFE.codeUnitAt(0));
-    Expect.equals(0xFFFE, v00FFFE.codeUnitAt(0));
-    Expect.equals("\uFFFE", new String.fromCharCodes([0xFFFE]));
-    Expect.equals("\u{FFFE}", new String.fromCharCodes([0xFFFE]));
-    Expect.equals("\u{0FFFE}", new String.fromCharCodes([0xFFFE]));
-    Expect.equals("\u{00FFFE}", new String.fromCharCodes([0xFFFE]));
-
-    var uFFFF = "\uFFFF";
-    var vFFFF = "\u{FFFF}";
-    var v0FFFF = "\u{0FFFF}";
-    var v00FFFF = "\u{00FFFF}";
-    Expect.equals(1, uFFFF.length);
-    Expect.equals(1, vFFFF.length);
-    Expect.equals(1, v0FFFF.length);
-    Expect.equals(1, v00FFFF.length);
-    Expect.equals(0xFFFF, uFFFF.codeUnitAt(0));
-    Expect.equals(0xFFFF, vFFFF.codeUnitAt(0));
-    Expect.equals(0xFFFF, v0FFFF.codeUnitAt(0));
-    Expect.equals(0xFFFF, v00FFFF.codeUnitAt(0));
-    Expect.equals("\uFFFF", new String.fromCharCodes([0xFFFF]));
-    Expect.equals("\u{FFFF}", new String.fromCharCodes([0xFFFF]));
-    Expect.equals("\u{0FFFF}", new String.fromCharCodes([0xFFFF]));
-    Expect.equals("\u{00FFFF}", new String.fromCharCodes([0xFFFF]));
-
-    var v10000 = "\u{10000}";
-    var v010000 = "\u{010000}";
-    Expect.equals(2, v10000.length);
-    Expect.equals(2, v010000.length);
-    Expect.equals("\u{10000}", new String.fromCharCodes([0x10000]));
-    Expect.equals("\u{010000}", new String.fromCharCodes([0x10000]));
-
-    var v1FFFF = "\u{1FFFF}";
-    var v01FFFF = "\u{01FFFF}";
-    Expect.equals(2, v1FFFF.length);
-    Expect.equals(2, v01FFFF.length);
-    Expect.equals("\u{1FFFF}", new String.fromCharCodes([0x1FFFF]));
-    Expect.equals("\u{01FFFF}", new String.fromCharCodes([0x1FFFF]));
-
-    var v105555 = "\u{105555}";
-    Expect.equals(2, v105555.length);
-    Expect.equals("\u{105555}", new String.fromCharCodes([0x105555]));
-
-    var v10FFFF = "\u{10FFFF}";
-    Expect.equals(2, v10FFFF.length);
-    Expect.equals("\u{10FFFF}", new String.fromCharCodes([0x10FFFF]));
-
-    var bs = "\b";
-    Expect.isTrue(bs != "b");
-    Expect.equals(1, bs.length);
-    Expect.equals(0x08, bs.codeUnitAt(0));
-    Expect.equals(bs, new String.fromCharCodes([0x08]));
-    Expect.equals("\x08", bs);
-    Expect.equals("\u0008", bs);
-    Expect.equals("\u{8}", bs);
-    Expect.equals("\u{08}", bs);
-    Expect.equals("\u{008}", bs);
-    Expect.equals("\u{0008}", bs);
-    Expect.equals("\u{00008}", bs);
-    Expect.equals("\u{000008}", bs);
-
-    var ht = "\t";
-    Expect.isTrue(ht != "t");
-    Expect.equals(1, ht.length);
-    Expect.equals(0x09, ht.codeUnitAt(0));
-    Expect.equals(ht, new String.fromCharCodes([0x09]));
-    Expect.equals("\x09", ht);
-    Expect.equals("\u0009", ht);
-    Expect.equals("\u{9}", ht);
-    Expect.equals("\u{09}", ht);
-    Expect.equals("\u{009}", ht);
-    Expect.equals("\u{0009}", ht);
-    Expect.equals("\u{00009}", ht);
-    Expect.equals("\u{000009}", ht);
-
-    var lf = "\n";
-    Expect.isTrue(lf != "n");
-    Expect.equals(1, lf.length);
-    Expect.equals(0x0A, lf.codeUnitAt(0));
-    Expect.equals(lf, new String.fromCharCodes([0x0A]));
-    Expect.equals("\x0A", lf);
-    Expect.equals("\u000A", lf);
-    Expect.equals("\u{A}", lf);
-    Expect.equals("\u{0A}", lf);
-    Expect.equals("\u{00A}", lf);
-    Expect.equals("\u{000A}", lf);
-    Expect.equals("\u{0000A}", lf);
-    Expect.equals("\u{00000A}", lf);
-
-    var vt = "\v";
-    Expect.isTrue(vt != "v");
-    Expect.equals(1, vt.length);
-    Expect.equals(0x0B, vt.codeUnitAt(0));
-    Expect.equals(vt, new String.fromCharCodes([0x0B]));
-    Expect.equals("\x0B", vt);
-    Expect.equals("\u000B", vt);
-    Expect.equals("\u{B}", vt);
-    Expect.equals("\u{0B}", vt);
-    Expect.equals("\u{00B}", vt);
-    Expect.equals("\u{000B}", vt);
-    Expect.equals("\u{0000B}", vt);
-    Expect.equals("\u{00000B}", vt);
-
-    var ff = "\f";
-    Expect.isTrue(ff != "f");
-    Expect.equals(1, ff.length);
-    Expect.equals(0x0C, ff.codeUnitAt(0));
-    Expect.equals(ff, new String.fromCharCodes([0x0C]));
-    Expect.equals("\x0C", ff);
-    Expect.equals("\u000C", ff);
-    Expect.equals("\u{C}", ff);
-    Expect.equals("\u{0C}", ff);
-    Expect.equals("\u{00C}", ff);
-    Expect.equals("\u{000C}", ff);
-    Expect.equals("\u{0000C}", ff);
-    Expect.equals("\u{00000C}", ff);
-
-    var cr = "\r";
-    Expect.isTrue(cr != "r");
-    Expect.equals(1, cr.length);
-    Expect.equals(0x0D, cr.codeUnitAt(0));
-    Expect.equals(cr, new String.fromCharCodes([0x0D]));
-    Expect.equals("\x0D", cr);
-    Expect.equals("\u000D", cr);
-    Expect.equals("\u{D}", cr);
-    Expect.equals("\u{0D}", cr);
-    Expect.equals("\u{00D}", cr);
-    Expect.equals("\u{000D}", cr);
-    Expect.equals("\u{0000D}", cr);
-    Expect.equals("\u{00000D}", cr);
-
-    Expect.equals("\a", "a");
-    // \b U+0006 BS
-    Expect.equals("\c", "c");
-    Expect.equals("\d", "d");
-    Expect.equals("\e", "e");
-    // \f U+000C FF
-    Expect.equals("\g", "g");
-    Expect.equals("\h", "h");
-    Expect.equals("\i", "i");
-    Expect.equals("\j", "j");
-    Expect.equals("\k", "k");
-    Expect.equals("\l", "l");
-    Expect.equals("\m", "m");
-    // \n U+000A LF
-    Expect.equals("\o", "o");
-    Expect.equals("\p", "p");
-    Expect.equals("\q", "q");
-    // \r U+000D CR
-    Expect.equals("\s", "s");
-    // \t U+0009 HT
-    // \u code point escape
-    // \v U+000B VT
-    Expect.equals("\w", "w");
-    // \x code point escape
-    Expect.equals("\y", "y");
-    Expect.equals("\z", "z");
-
-    Expect.equals("\A", "A");
-    Expect.equals("\B", "B");
-    Expect.equals("\C", "C");
-    Expect.equals("\D", "D");
-    Expect.equals("\E", "E");
-    Expect.equals("\F", "F");
-    Expect.equals("\G", "G");
-    Expect.equals("\H", "H");
-    Expect.equals("\I", "I");
-    Expect.equals("\J", "J");
-    Expect.equals("\K", "K");
-    Expect.equals("\L", "L");
-    Expect.equals("\M", "M");
-    Expect.equals("\N", "N");
-    Expect.equals("\O", "O");
-    Expect.equals("\P", "P");
-    Expect.equals("\Q", "Q");
-    Expect.equals("\R", "R");
-    Expect.equals("\S", "S");
-    Expect.equals("\T", "T");
-    Expect.equals("\U", "U");
-    Expect.equals("\V", "V");
-    Expect.equals("\W", "W");
-    Expect.equals("\X", "X");
-    Expect.equals("\Y", "Y");
-    Expect.equals("\Z", "Z");
-  }
-}
-
-main() {
-  CharEscapeTest.testMain();
-}
diff --git a/tests/language_2/string/charcode_test.dart b/tests/language_2/string/charcode_test.dart
deleted file mode 100644
index f19caa96ba2..00000000000
--- a/tests/language_2/string/charcode_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  for (int i = 0; i < 20; i++) {
-    Expect.isTrue(moo("x"));
-    Expect.isFalse(moo("X"));
-    Expect.isFalse(moo("xx"));
-    Expect.isTrue(mooRev("x"));
-    Expect.isFalse(mooRev("X"));
-    Expect.isFalse(mooRev("xx"));
-    Expect.isTrue(goo("Hello", "e"));
-    Expect.isFalse(goo("Hello", "E"));
-    Expect.isFalse(goo("Hello", "ee"));
-    Expect.isTrue(gooRev("Hello", "e"));
-    Expect.isFalse(gooRev("Hello", "E"));
-    Expect.isFalse(gooRev("Hello", "ee"));
-    Expect.isTrue(hoo("HH"));
-    Expect.isFalse(hoo("Ha"));
-    Expect.isTrue(hooRev("HH"));
-    Expect.isFalse(hooRev("Ha"));
-  }
-  Expect.isFalse(moo(12));
-  Expect.isFalse(mooRev(12));
-  Expect.isTrue(goo([1, 2], 2));
-  Expect.isTrue(gooRev([1, 2], 2));
-  Expect.throwsRangeError(() => hoo("H"));
-  Expect.throwsRangeError(() => hooRev("H"));
-}
-
-moo(j) {
-  return "x" == j;
-}
-
-goo(a, j) {
-  return a[1] == j;
-}
-
-// Check constant folding.
-hoo(a) {
-  return a[1] == ("Hello")[0];
-}
-
-mooRev(j) {
-  return j == "x";
-}
-
-gooRev(a, j) {
-  return j == a[1];
-}
-
-// Check constant folding.
-hooRev(a) {
-  return ("Hello")[0] == a[1];
-}
diff --git a/tests/language_2/string/const_interpolation2_test.dart b/tests/language_2/string/const_interpolation2_test.dart
deleted file mode 100644
index 363cb3ab2d9..00000000000
--- a/tests/language_2/string/const_interpolation2_test.dart
+++ /dev/null
@@ -1,105 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Regression test for issue #24839 - http://dartbug.com/24839
-
-const u1 = null;
-const int u2 = null;
-const List u3 = null;
-const u4 = const bool.hasEnvironment("XXXXX")
-    ? const String.fromEnvironment("XXXXX")
-    : null;
-const u5 = const bool.hasEnvironment("XXXXX")
-    ? const int.fromEnvironment("XXXXX")
-    : null;
-const u6 = bool.hasEnvironment("XXXXX")
-    ? const bool.fromEnvironment("XXXXX")
-    : null;
-const n1 = 42;
-const n2 = 3.1415;
-const int n3 = 37;
-const double n4 = 4.6692;
-const num n5 = b3 ? 1 : 2.71828;
-const n6 = const int.fromEnvironment("XXXXX", defaultValue: 87);
-const s1 = "s1";
-const String s2 = "s2";
-const String s3 = "$s1$s2";
-const s4 = const String.fromEnvironment("XXXXX", defaultValue: "s4");
-const b1 = true;
-const b2 = false;
-const b3 = b1 && (b2 || !b1);
-const b4 = const bool.fromEnvironment("XXXXX", defaultValue: true);
-
-// Individually
-const su1 = "$u1";
-const su2 = "$u2";
-const su3 = "$u3";
-const su4 = "$u4";
-const su5 = "$u5";
-const su6 = "$u6";
-const sn1 = "$n1";
-const sn2 = "$n2";
-const sn3 = "$n3";
-const sn4 = "$n4";
-const sn5 = "$n5";
-const sn6 = "$n6";
-const ss1 = "$s1";
-const ss2 = "$s2";
-const ss3 = "$s3";
-const ss4 = "$s4";
-const sb1 = "$b1";
-const sb2 = "$b2";
-const sb3 = "$b3";
-const sb4 = "$b4";
-
-// Constant variables in interpolation.
-const interpolation1 =
-    "$u1 $u2 $u3 $u4 $u5 $u6 $n1 $n2 $n3 $n4 $n5 $n6 $s1 $s2 $s3 $s4 $b1 $b2 $b3 $b4";
-// Constant expressions in interpolation.
-// (Single string, the linebreak to fit this into 80 chars is inside an
-// interpolation, which is allowed, even for single-line strings).
-const interpolation2 =
-    "${u1} ${u2} ${u3} ${u4} ${u5} ${u6} ${n1} ${n2} ${n3} ${n4} ${n5} ${n6} ${
-     s1} ${s2} ${s3} ${s4} ${b1} ${b2} ${b3} ${b4}";
-// Adjacent string literals are combined.
-const interpolation3 = "$u1 $u2 $u3 $u4 $u5 "
-    '$u6 $n1 $n2 $n3 $n4 '
-    """$n5 $n6 $s1 $s2 $s3 """
-    '''$s4 $b1 $b2 $b3 $b4''';
-// Nested interpolations.
-const interpolation4 = "${"$u1 $u2 $u3 $u4 $u5 " '$u6 $n1 $n2 $n3 $n4'} ${
-     """$n5 $n6 $s1 $s2 $s3 """ '''$s4 $b1 $b2 $b3 $b4'''}";
-
-main() {
-  Expect.equals(u1.toString(), su1);
-  Expect.equals(u2.toString(), su2);
-  Expect.equals(u3.toString(), su3);
-  Expect.equals(u4.toString(), su4);
-  Expect.equals(u5.toString(), su5);
-  Expect.equals(u6.toString(), su6);
-  Expect.equals(n1.toString(), sn1);
-  Expect.equals(n2.toString(), sn2);
-  Expect.equals(n3.toString(), sn3);
-  Expect.equals(n4.toString(), sn4);
-  Expect.equals(n5.toString(), sn5);
-  Expect.equals(n6.toString(), sn6);
-  Expect.equals(s1.toString(), ss1);
-  Expect.equals(s2.toString(), ss2);
-  Expect.equals(s3.toString(), ss3);
-  Expect.equals(s4.toString(), ss4);
-  Expect.equals(b1.toString(), sb1);
-  Expect.equals(b2.toString(), sb2);
-  Expect.equals(b3.toString(), sb3);
-  Expect.equals(b4.toString(), sb4);
-  var expect = "null null null null null null 42 3.1415 37 4.6692 2.71828 87 "
-      "s1 s2 s1s2 s4 true false false true";
-  Expect.equals(expect, interpolation1);
-  Expect.equals(expect, interpolation2);
-  Expect.equals(expect, interpolation3);
-  Expect.equals(expect, interpolation4);
-}
diff --git a/tests/language_2/string/const_interpolation_constant_string_interpolation_test.dart b/tests/language_2/string/const_interpolation_constant_string_interpolation_test.dart
deleted file mode 100644
index 0d4970b7228..00000000000
--- a/tests/language_2/string/const_interpolation_constant_string_interpolation_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  final a = new A();
-  for (int i = 0; i < 20; i++) {
-    final r = interpolIt(a);
-    Expect.stringEquals("hello home", r);
-  }
-  final b = new B();
-  // Deoptimize "interpolIt".
-  final r = interpolIt(b);
-  Expect.stringEquals("hello world", r);
-}
-
-String interpolIt(v) {
-  // String interpolation will be constant folded.
-  return "hello ${v.foo()}";
-}
-
-class A {
-  foo() => "home";
-}
-
-class B {
-  foo() => "world";
-}
diff --git a/tests/language_2/string/escape4_test.dart b/tests/language_2/string/escape4_test.dart
deleted file mode 100644
index cfedc5d26ee..00000000000
--- a/tests/language_2/string/escape4_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that newlines cannot be escaped in strings.
-
-main() {
-  // Note: The newline inside a string literal doesn't play nice with the
-  // static error updater tool, so if you need to tweak the static error
-  // expectations in this test, you may need to do so manually.
-  print('Hello, World!\
-  //   ^
-  // [cfe] Can't find ')' to match '('.
-  //    ^
-  // [cfe] String starting with ' must end with '.
-  //                  ^
-  // [analyzer] SYNTACTIC_ERROR.INVALID_UNICODE_ESCAPE_STARTED
-  // [analyzer] SYNTACTIC_ERROR.UNTERMINATED_STRING_LITERAL
-  // [cfe] The string '\' can't stand alone.
-');
-// [error column 1, length 3]
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-// [cfe] Expected ';' after this.
-// [cfe] String starting with ' must end with '.
-//^
-// [analyzer] SYNTACTIC_ERROR.UNTERMINATED_STRING_LITERAL
-}
-// [error column 1, length 1]
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
diff --git a/tests/language_2/string/escapes_test.dart b/tests/language_2/string/escapes_test.dart
deleted file mode 100644
index a0322f43a96..00000000000
--- a/tests/language_2/string/escapes_test.dart
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class StringEscapesTest {
-  static testMain() {
-    testDelimited();
-    testFixed2();
-    testFixed4();
-    testEscapes();
-    testLiteral();
-  }
-
-  static testDelimited() {
-    String str = "Foo\u{1}Bar\u{000001}Baz\u{D7FF}Boo";
-    Expect.equals(15, str.length);
-    Expect.equals(1, str.codeUnitAt(3));
-    Expect.equals(1, str.codeUnitAt(7));
-    Expect.equals(0xD7FF, str.codeUnitAt(11));
-    Expect.equals('B'.codeUnitAt(0), str.codeUnitAt(12));
-  }
-
-  static testEscapes() {
-    String str = "Foo\fBar\vBaz\bBoo";
-    Expect.equals(15, str.length);
-    Expect.equals(12, str.codeUnitAt(3));
-    Expect.equals('B'.codeUnitAt(0), str.codeUnitAt(4));
-    Expect.equals(11, str.codeUnitAt(7));
-    Expect.equals('z'.codeUnitAt(0), str.codeUnitAt(10));
-    Expect.equals(8, str.codeUnitAt(11));
-    Expect.equals('o'.codeUnitAt(0), str.codeUnitAt(14));
-    str = "Abc\rDef\nGhi\tJkl";
-    Expect.equals(15, str.length);
-    Expect.equals(13, str.codeUnitAt(3));
-    Expect.equals('D'.codeUnitAt(0), str.codeUnitAt(4));
-    Expect.equals(10, str.codeUnitAt(7));
-    Expect.equals('G'.codeUnitAt(0), str.codeUnitAt(8));
-    Expect.equals(9, str.codeUnitAt(11));
-    Expect.equals('J'.codeUnitAt(0), str.codeUnitAt(12));
-  }
-
-  static testFixed2() {
-    String str = "Foo\xFFBar";
-    Expect.equals(7, str.length);
-    Expect.equals(255, str.codeUnitAt(3));
-    Expect.equals('B'.codeUnitAt(0), str.codeUnitAt(4));
-  }
-
-  static testFixed4() {
-    String str = "Foo\u0001Bar";
-    Expect.equals(7, str.length);
-    Expect.equals(1, str.codeUnitAt(3));
-    Expect.equals('B'.codeUnitAt(0), str.codeUnitAt(4));
-  }
-
-  static testLiteral() {
-    String str = "\a\c\d\e\g\h\i\j\k\l\$\{\}\"";
-    Expect.equals(r'acdeghijkl${}"', str);
-  }
-}
-
-main() {
-  StringEscapesTest.testMain();
-}
diff --git a/tests/language_2/string/interpolate1_test.dart b/tests/language_2/string/interpolate1_test.dart
deleted file mode 100644
index 9db9cd676ae..00000000000
--- a/tests/language_2/string/interpolate1_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// The interpolated identifier can't start with '$'.
-
-main() {
-  var $x = 1;
-  var s = "eins und $$x macht zwei.";
-  //                 ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-  //                  ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-  // [cfe] Undefined name 'x'.
-}
diff --git a/tests/language_2/string/interpolate2_test.dart b/tests/language_2/string/interpolate2_test.dart
deleted file mode 100644
index 5c5d672fa88..00000000000
--- a/tests/language_2/string/interpolate2_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program testing string interpolation of expressions.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class StringInterpolate2Test {
-  static var F1;
-
-  static void testMain() {
-    F1 = "1 + 5 = ${1+5}";
-
-    Expect.equals("1 + 5 = 6", F1);
-
-    var fib = [1, 1, 2, 3, 5, 8, 13, 21];
-
-    var i = 5;
-    var s = "${i}";
-    Expect.equals("5", s);
-
-    s = "fib(${i}) = ${fib[i]}";
-    Expect.equals("fib(5) = 8", s);
-
-    i = 5;
-    s = "$i squared is ${((x) => x*x)(i)}";
-    Expect.equals("5 squared is 25", s);
-
-    Expect.equals("8", "${fib.length}");
-    // test single quote
-    Expect.equals("8", '${fib.length}');
-    // test multi-line
-    Expect.equals(
-        "8",
-        '${fib.
-    length}');
-
-    var map = {"red": 1, "green": 2, "blue": 3};
-    s = "green has value ${map["green"]}";
-    Expect.equals("green has value 2", s);
-
-    i = 0;
-    b() => "${++i}";
-    s = "aaa ${"bbb ${b()} bbb"} aaa ${b()}";
-    Expect.equals("aaa bbb 1 bbb aaa 2", s);
-
-    // test multiple levels of nesting, including changing quotes and
-    // multiline string types
-    s = "a ${(){ return 'b ${(){ return """
-c""";}()}'; }()} d";
-    Expect.equals("a b c d", s);
-  }
-}
-
-main() {
-  StringInterpolate2Test.testMain();
-}
diff --git a/tests/language_2/string/interpolate3_test.dart b/tests/language_2/string/interpolate3_test.dart
deleted file mode 100644
index 6b675340623..00000000000
--- a/tests/language_2/string/interpolate3_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// The interpolated identifier must start with an identifier start character.
-
-main() {
-  var x = 1;
-  var s = "eins und $-x macht zwei.";
-  //                 ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-}
diff --git a/tests/language_2/string/interpolate_null_test.dart b/tests/language_2/string/interpolate_null_test.dart
deleted file mode 100644
index f8dd7b7ebc8..00000000000
--- a/tests/language_2/string/interpolate_null_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program testing NPE within string interpolation.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  A(String this.name) {}
-  String name;
-}
-
-main() {
-  A a = new A("Kermit");
-  var s = "Hello Mr. ${a.name}";
-  Expect.stringEquals("Hello Mr. Kermit", s);
-  a = null;
-  try {
-    s = "Hello Mr. ${a.name}";
-  } on NoSuchMethodError catch (e) {
-    return;
-  }
-  Expect.fail("NoSuchMethodError not thrown");
-}
diff --git a/tests/language_2/string/interpolate_test.dart b/tests/language_2/string/interpolate_test.dart
deleted file mode 100644
index 38997dd9fd2..00000000000
--- a/tests/language_2/string/interpolate_test.dart
+++ /dev/null
@@ -1,268 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program testing string interpolation.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class WhatchamaCallIt {
-  WhatchamaCallIt() {}
-
-  String foo() {
-    // Test $this and Field name is defined in subclass.
-    dynamic self = this;
-    dynamic name = self.name;
-    return "$this and $name";
-  }
-}
-
-class ThingamaBob extends WhatchamaCallIt {
-  ThingamaBob(String s)
-      : name = s,
-        super();
-  String name;
-  toString() => "Hansel";
-}
-
-const String A = "svin";
-const String B = "hest";
-const int N = 1 + 1;
-String Printers;
-String AAR_Printers;
-
-main() {
-  Printers = "Printers: $A and $B";
-  AAR_Printers = "AAR has $N $Printers.";
-
-  var x = 1;
-  var s = "eins und \$x macht zwei.";
-  print(s);
-  Expect.equals(r"eins und $x macht zwei.", s);
-
-  s = "eins und $x macht zwei.";
-  print(s);
-  Expect.equals(r"eins und 1 macht zwei.", s);
-
-  print(AAR_Printers);
-  Expect.equals(r"AAR has 2 Printers: svin and hest.", AAR_Printers);
-
-  var s$eins = "eins";
-  var $1 = 1;
-  var zw = "zw";
-  var ei = "ei";
-  var zw$ei = "\"Martini, dry? Nai zwai.\"";
-  s = "${s$eins} und ${$1} macht $zw$ei.";
-  print(s);
-  Expect.equals(r"eins und 1 macht zwei.", s);
-
-  dynamic t = new ThingamaBob("Gretel");
-  print(t.foo());
-  Expect.equals(t.foo(), "Hansel and Gretel");
-
-  testStringVariants();
-}
-
-class Stringable {
-  final String value;
-  Stringable(this.value);
-  String toString() => value;
-  operator *(int count) => new Stringable(value * count);
-}
-
-void testStringVariants() {
-  String latin = "ab\x00\xff";
-  String nonLatin = "\u2000\u{10000}\ufeff";
-  dynamic oLatin = new Stringable(latin);
-  dynamic oNonLatin = new Stringable(nonLatin);
-
-  // ASCII.
-  Expect.equals(latin * 3, "$latin$latin$latin");
-  Expect.equals(
-      latin * 64,
-      "$latin$latin$latin$latin$latin$latin$latin$latin"
-      "$latin$latin$latin$latin$latin$latin$latin$latin"
-      "$latin$latin$latin$latin$latin$latin$latin$latin"
-      "$latin$latin$latin$latin$latin$latin$latin$latin"
-      "$latin$latin$latin$latin$latin$latin$latin$latin"
-      "$latin$latin$latin$latin$latin$latin$latin$latin"
-      "$latin$latin$latin$latin$latin$latin$latin$latin"
-      "$latin$latin$latin$latin$latin$latin$latin$latin");
-  Expect.equals(
-      latin * 64,
-      "${latin * 4}${latin * 4}${latin * 4}${latin * 4}"
-      "${latin * 4}${latin * 4}${latin * 4}${latin * 4}"
-      "${latin * 4}${latin * 4}${latin * 4}${latin * 4}"
-      "${latin * 4}${latin * 4}${latin * 4}${latin * 4}");
-  // Non-ASCII.
-  Expect.equals(nonLatin * 3, "$nonLatin$nonLatin$nonLatin");
-  Expect.equals(
-      nonLatin * 64,
-      "$nonLatin$nonLatin$nonLatin$nonLatin"
-      "$nonLatin$nonLatin$nonLatin$nonLatin"
-      "$nonLatin$nonLatin$nonLatin$nonLatin"
-      "$nonLatin$nonLatin$nonLatin$nonLatin"
-      "$nonLatin$nonLatin$nonLatin$nonLatin"
-      "$nonLatin$nonLatin$nonLatin$nonLatin"
-      "$nonLatin$nonLatin$nonLatin$nonLatin"
-      "$nonLatin$nonLatin$nonLatin$nonLatin"
-      "$nonLatin$nonLatin$nonLatin$nonLatin"
-      "$nonLatin$nonLatin$nonLatin$nonLatin"
-      "$nonLatin$nonLatin$nonLatin$nonLatin"
-      "$nonLatin$nonLatin$nonLatin$nonLatin"
-      "$nonLatin$nonLatin$nonLatin$nonLatin"
-      "$nonLatin$nonLatin$nonLatin$nonLatin"
-      "$nonLatin$nonLatin$nonLatin$nonLatin"
-      "$nonLatin$nonLatin$nonLatin$nonLatin");
-  Expect.equals(
-      nonLatin * 64,
-      "${nonLatin * 4}${nonLatin * 4}"
-      "${nonLatin * 4}${nonLatin * 4}"
-      "${nonLatin * 4}${nonLatin * 4}"
-      "${nonLatin * 4}${nonLatin * 4}"
-      "${nonLatin * 4}${nonLatin * 4}"
-      "${nonLatin * 4}${nonLatin * 4}"
-      "${nonLatin * 4}${nonLatin * 4}"
-      "${nonLatin * 4}${nonLatin * 4}");
-  // Mixed.
-  Expect.equals(latin * 3 + nonLatin, "$latin$latin$latin$nonLatin");
-  Expect.equals(nonLatin + latin * 3, "$nonLatin$latin$latin$latin");
-  Expect.equals(
-      latin * 60 + nonLatin * 4,
-      "$latin$latin$latin$latin$latin$latin$latin$latin"
-      "$latin$latin$latin$latin$latin$latin$latin$latin"
-      "$latin$latin$latin$latin$latin$latin$latin$latin"
-      "$latin$latin$latin$latin$latin$latin$latin$latin"
-      "$latin$latin$latin$latin$latin$latin$latin$latin"
-      "$latin$latin$latin$latin$latin$latin$latin$latin"
-      "$latin$latin$latin$latin$latin$latin$latin$latin"
-      "$latin$latin$latin$latin"
-      "$nonLatin$nonLatin$nonLatin$nonLatin");
-  Expect.equals(
-      nonLatin * 4 + latin * 60,
-      "$nonLatin$nonLatin$nonLatin$nonLatin"
-      "$latin$latin$latin$latin$latin$latin$latin$latin"
-      "$latin$latin$latin$latin$latin$latin$latin$latin"
-      "$latin$latin$latin$latin$latin$latin$latin$latin"
-      "$latin$latin$latin$latin$latin$latin$latin$latin"
-      "$latin$latin$latin$latin$latin$latin$latin$latin"
-      "$latin$latin$latin$latin$latin$latin$latin$latin"
-      "$latin$latin$latin$latin$latin$latin$latin$latin"
-      "$latin$latin$latin$latin");
-  Expect.equals(
-      latin * 60 + nonLatin * 4,
-      "${latin * 4}${latin * 4}${latin * 4}${latin * 4}"
-      "${latin * 4}${latin * 4}${latin * 4}${latin * 4}"
-      "${latin * 4}${latin * 4}${latin * 4}${latin * 4}"
-      "${latin * 4}${latin * 4}${latin * 4}${nonLatin * 4}");
-  Expect.equals(
-      nonLatin * 4 + latin * 60,
-      "${nonLatin * 4}${latin * 4}${latin * 4}${latin * 4}"
-      "${latin * 4}${latin * 4}${latin * 4}${latin * 4}"
-      "${latin * 4}${latin * 4}${latin * 4}${latin * 4}"
-      "${latin * 4}${latin * 4}${latin * 4}${latin * 4}");
-  // With objects.
-  Expect.equals(latin * 3, "$latin$oLatin$latin");
-  Expect.equals(
-      latin * 64,
-      "$latin$latin$latin$latin$latin$latin$latin$oLatin"
-      "$latin$latin$latin$latin$latin$latin$latin$oLatin"
-      "$latin$latin$latin$latin$latin$latin$latin$oLatin"
-      "$latin$latin$latin$latin$latin$latin$latin$oLatin"
-      "$latin$latin$latin$latin$latin$latin$latin$oLatin"
-      "$latin$latin$latin$latin$latin$latin$latin$oLatin"
-      "$latin$latin$latin$latin$latin$latin$latin$oLatin"
-      "$latin$latin$latin$latin$latin$latin$latin$oLatin");
-  Expect.equals(
-      latin * 64,
-      "${latin * 4}${latin * 4}${latin * 4}${oLatin * 4}"
-      "${latin * 4}${latin * 4}${latin * 4}${oLatin * 4}"
-      "${latin * 4}${latin * 4}${latin * 4}${oLatin * 4}"
-      "${latin * 4}${latin * 4}${latin * 4}${oLatin * 4}");
-  // Non-ASCII.
-  Expect.equals(nonLatin * 3, "$nonLatin$oNonLatin$nonLatin");
-  Expect.equals(
-      nonLatin * 64,
-      "$nonLatin$nonLatin$nonLatin$oNonLatin"
-      "$nonLatin$nonLatin$nonLatin$oNonLatin"
-      "$nonLatin$nonLatin$nonLatin$oNonLatin"
-      "$nonLatin$nonLatin$nonLatin$oNonLatin"
-      "$nonLatin$nonLatin$nonLatin$oNonLatin"
-      "$nonLatin$nonLatin$nonLatin$oNonLatin"
-      "$nonLatin$nonLatin$nonLatin$oNonLatin"
-      "$nonLatin$nonLatin$nonLatin$oNonLatin"
-      "$nonLatin$nonLatin$nonLatin$oNonLatin"
-      "$nonLatin$nonLatin$nonLatin$oNonLatin"
-      "$nonLatin$nonLatin$nonLatin$oNonLatin"
-      "$nonLatin$nonLatin$nonLatin$oNonLatin"
-      "$nonLatin$nonLatin$nonLatin$oNonLatin"
-      "$nonLatin$nonLatin$nonLatin$oNonLatin"
-      "$nonLatin$nonLatin$nonLatin$oNonLatin"
-      "$nonLatin$nonLatin$nonLatin$oNonLatin");
-  Expect.equals(
-      nonLatin * 64,
-      "${nonLatin * 4}${oNonLatin * 4}"
-      "${nonLatin * 4}${oNonLatin * 4}"
-      "${nonLatin * 4}${oNonLatin * 4}"
-      "${nonLatin * 4}${oNonLatin * 4}"
-      "${nonLatin * 4}${oNonLatin * 4}"
-      "${nonLatin * 4}${oNonLatin * 4}"
-      "${nonLatin * 4}${oNonLatin * 4}"
-      "${nonLatin * 4}${oNonLatin * 4}");
-  // Mixed.
-  Expect.equals(latin * 2 + nonLatin * 2, "$latin$oLatin$nonLatin$oNonLatin");
-  Expect.equals(nonLatin * 2 + latin * 2, "$nonLatin$oNonLatin$latin$oLatin");
-  Expect.equals(
-      (latin * 2 + nonLatin * 2) * 8,
-      "$latin$oLatin$nonLatin$oNonLatin"
-      "$latin$oLatin$nonLatin$oNonLatin"
-      "$latin$oLatin$nonLatin$oNonLatin"
-      "$latin$oLatin$nonLatin$oNonLatin"
-      "$latin$oLatin$nonLatin$oNonLatin"
-      "$latin$oLatin$nonLatin$oNonLatin"
-      "$latin$oLatin$nonLatin$oNonLatin"
-      "$latin$oLatin$nonLatin$oNonLatin");
-  Expect.equals(
-      (nonLatin * 2 + latin * 2) * 8,
-      "$nonLatin$oNonLatin$latin$oLatin"
-      "$nonLatin$oNonLatin$latin$oLatin"
-      "$nonLatin$oNonLatin$latin$oLatin"
-      "$nonLatin$oNonLatin$latin$oLatin"
-      "$nonLatin$oNonLatin$latin$oLatin"
-      "$nonLatin$oNonLatin$latin$oLatin"
-      "$nonLatin$oNonLatin$latin$oLatin"
-      "$nonLatin$oNonLatin$latin$oLatin");
-
-  // All combinations
-  var o1 = new Stringable("x");
-  var o2 = new Stringable("\ufeff");
-
-  Expect.equals("a\u2000x\ufeff", "${"a"}${"\u2000"}${o1}${o2}");
-  Expect.equals("a\u2000\ufeffx", "${"a"}${"\u2000"}${o2}${o1}");
-  Expect.equals("ax\u2000\ufeff", "${"a"}${o1}${"\u2000"}${o2}");
-  Expect.equals("ax\ufeff\u2000", "${"a"}${o1}${o2}${"\u2000"}");
-  Expect.equals("a\ufeffx\u2000", "${"a"}${o2}${o1}${"\u2000"}");
-  Expect.equals("a\ufeff\u2000x", "${"a"}${o2}${"\u2000"}${o1}");
-
-  Expect.equals("\u2000ax\ufeff", "${"\u2000"}${"a"}${o1}${o2}");
-  Expect.equals("\u2000a\ufeffx", "${"\u2000"}${"a"}${o2}${o1}");
-  Expect.equals("xa\u2000\ufeff", "${o1}${"a"}${"\u2000"}${o2}");
-  Expect.equals("xa\ufeff\u2000", "${o1}${"a"}${o2}${"\u2000"}");
-  Expect.equals("\ufeffax\u2000", "${o2}${"a"}${o1}${"\u2000"}");
-  Expect.equals("\ufeffa\u2000x", "${o2}${"a"}${"\u2000"}${o1}");
-
-  Expect.equals("\u2000xa\ufeff", "${"\u2000"}${o1}${"a"}${o2}");
-  Expect.equals("\u2000\ufeffax", "${"\u2000"}${o2}${"a"}${o1}");
-  Expect.equals("x\u2000a\ufeff", "${o1}${"\u2000"}${"a"}${o2}");
-  Expect.equals("x\ufeffa\u2000", "${o1}${o2}${"a"}${"\u2000"}");
-  Expect.equals("\ufeffxa\u2000", "${o2}${o1}${"a"}${"\u2000"}");
-  Expect.equals("\ufeff\u2000ax", "${o2}${"\u2000"}${"a"}${o1}");
-
-  Expect.equals("\u2000x\ufeffa", "${"\u2000"}${o1}${o2}${"a"}");
-  Expect.equals("\u2000\ufeffxa", "${"\u2000"}${o2}${o1}${"a"}");
-  Expect.equals("x\u2000\ufeffa", "${o1}${"\u2000"}${o2}${"a"}");
-  Expect.equals("x\ufeff\u2000a", "${o1}${o2}${"\u2000"}${"a"}");
-  Expect.equals("\ufeffx\u2000a", "${o2}${o1}${"\u2000"}${"a"}");
-  Expect.equals("\ufeff\u2000xa", "${o2}${"\u2000"}${o1}${"a"}");
-}
diff --git a/tests/language_2/string/interpolation1_runtime_test.dart b/tests/language_2/string/interpolation1_runtime_test.dart
deleted file mode 100644
index 76c7b4f4a4d..00000000000
--- a/tests/language_2/string/interpolation1_runtime_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// A dollar must be followed by a "{" or an identifier.
-
-class A {
-  final String str;
-  const A(this.str);
-}
-
-class StringInterpolation1NegativeTest {
-  // Dollar not followed by "{" or identifier.
-
-  static testMain() {
-
-  }
-}
-
-main() {
-  StringInterpolation1NegativeTest.testMain();
-}
diff --git a/tests/language_2/string/interpolation1_test.dart b/tests/language_2/string/interpolation1_test.dart
deleted file mode 100644
index 35f6a1ea624..00000000000
--- a/tests/language_2/string/interpolation1_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// A dollar must be followed by a "{" or an identifier.
-
-class A {
-  final String str;
-  const A(this.str);
-}
-
-class StringInterpolation1NegativeTest {
-  // Dollar not followed by "{" or identifier.
-  static const DOLLAR = const A("$");
-  //                              ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_CONSTANT
-  // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-  static testMain() {
-    print(DOLLAR);
-  }
-}
-
-main() {
-  StringInterpolation1NegativeTest.testMain();
-}
diff --git a/tests/language_2/string/interpolation2_runtime_test.dart b/tests/language_2/string/interpolation2_runtime_test.dart
deleted file mode 100644
index 5871262d464..00000000000
--- a/tests/language_2/string/interpolation2_runtime_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// A dollar must be followed by a "{" or an identifier.
-
-class StringInterpolation2NegativeTest {
-  static testMain() {
-    // Dollar followed by "/".
-
-  }
-}
-
-main() {
-  StringInterpolation2NegativeTest.testMain();
-}
diff --git a/tests/language_2/string/interpolation2_test.dart b/tests/language_2/string/interpolation2_test.dart
deleted file mode 100644
index 654e2ea3bf6..00000000000
--- a/tests/language_2/string/interpolation2_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// A dollar must be followed by a "{" or an identifier.
-
-class StringInterpolation2NegativeTest {
-  static testMain() {
-    // Dollar followed by "/".
-    print('C;Y1;X4;K"$/Month"');
-    //                ^
-    // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-    // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-  }
-}
-
-main() {
-  StringInterpolation2NegativeTest.testMain();
-}
diff --git a/tests/language_2/string/interpolation3_runtime_test.dart b/tests/language_2/string/interpolation3_runtime_test.dart
deleted file mode 100644
index 4e75fbced98..00000000000
--- a/tests/language_2/string/interpolation3_runtime_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// A dollar must be followed by a "{" or an identifier.
-
-class StringInterpolation3NegativeTest {
-  static testMain() {
-    // Dollar followed by a number.
-
-  }
-}
-
-main() {
-  StringInterpolation3NegativeTest.testMain();
-}
diff --git a/tests/language_2/string/interpolation3_test.dart b/tests/language_2/string/interpolation3_test.dart
deleted file mode 100644
index 15cca20f40d..00000000000
--- a/tests/language_2/string/interpolation3_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// A dollar must be followed by a "{" or an identifier.
-
-class StringInterpolation3NegativeTest {
-  static testMain() {
-    // Dollar followed by a number.
-    print('F;P4;F$2R');
-    //            ^
-    // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-    // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-  }
-}
-
-main() {
-  StringInterpolation3NegativeTest.testMain();
-}
diff --git a/tests/language_2/string/interpolation4_runtime_test.dart b/tests/language_2/string/interpolation4_runtime_test.dart
deleted file mode 100644
index c5a23a93307..00000000000
--- a/tests/language_2/string/interpolation4_runtime_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// A dollar must be followed by a "{" or an identifier.
-
-class StringInterpolation4NegativeTest {
-  static testMain() {
-    // Dollar not followed by "{" or identifier.
-
-  }
-}
-
-main() {
-  StringInterpolation4NegativeTest.testMain();
-}
diff --git a/tests/language_2/string/interpolation4_test.dart b/tests/language_2/string/interpolation4_test.dart
deleted file mode 100644
index 4cf1cb7a8f1..00000000000
--- a/tests/language_2/string/interpolation4_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// A dollar must be followed by a "{" or an identifier.
-
-class StringInterpolation4NegativeTest {
-  static testMain() {
-    // Dollar not followed by "{" or identifier.
-    print("-" + "$" + "foo");
-    //            ^
-    // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-    // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-  }
-}
-
-main() {
-  StringInterpolation4NegativeTest.testMain();
-}
diff --git a/tests/language_2/string/interpolation5_runtime_test.dart b/tests/language_2/string/interpolation5_runtime_test.dart
deleted file mode 100644
index 34262ed94a1..00000000000
--- a/tests/language_2/string/interpolation5_runtime_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// A dollar must be followed by a "{" or an identifier.
-
-class StringInterpolation5NegativeTest {
-  static testMain() {
-    // Dollar followed by a number.
-
-  }
-}
-
-main() {
-  StringInterpolation5NegativeTest.testMain();
-}
diff --git a/tests/language_2/string/interpolation5_test.dart b/tests/language_2/string/interpolation5_test.dart
deleted file mode 100644
index de2ae86c314..00000000000
--- a/tests/language_2/string/interpolation5_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// A dollar must be followed by a "{" or an identifier.
-
-class StringInterpolation5NegativeTest {
-  static testMain() {
-    // Dollar followed by a number.
-    print("$1,000");
-    //      ^
-    // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-    // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-  }
-}
-
-main() {
-  StringInterpolation5NegativeTest.testMain();
-}
diff --git a/tests/language_2/string/interpolation6_test.dart b/tests/language_2/string/interpolation6_test.dart
deleted file mode 100644
index b92e7128977..00000000000
--- a/tests/language_2/string/interpolation6_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// A dollar must be followed by a "{" or an identifier.
-
-class StringInterpolation6NegativeTest {
-  static testMain() {
-    // Dollar not followed by "{" or identifier.
-    String regexp;
-    regexp = "^(\\d\\d?)[-/](\\d\\d?)$";
-    //                                ^
-    // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-    // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-    print(regexp);
-  }
-}
-
-main() {
-  StringInterpolation6NegativeTest.testMain();
-}
diff --git a/tests/language_2/string/interpolation7_test.dart b/tests/language_2/string/interpolation7_test.dart
deleted file mode 100644
index 46fb0be76cf..00000000000
--- a/tests/language_2/string/interpolation7_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test program testing string interpolation with toString on custom
-// classes and on null.
-
-class A {
-  const A();
-  String toString() {
-    return "A";
-  }
-}
-
-class StringInterpolation7Test {
-  static testMain() {
-    A a = new A();
-    Expect.equals("A + A", "$a + $a");
-    a = null;
-    Expect.equals("null", "$a");
-  }
-}
-
-main() {
-  StringInterpolation7Test.testMain();
-}
diff --git a/tests/language_2/string/interpolation8_test.dart b/tests/language_2/string/interpolation8_test.dart
deleted file mode 100644
index 0c2aabe8da6..00000000000
--- a/tests/language_2/string/interpolation8_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Allow assignment of string interpolation to a static const field
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  static const x = 1;
-  static const y = "Two is greater than ${x}";
-}
-
-main() {
-  Expect.identical("Two is greater than 1", A.y);
-}
diff --git a/tests/language_2/string/interpolation9_runtime_test.dart b/tests/language_2/string/interpolation9_runtime_test.dart
deleted file mode 100644
index 0a79f762201..00000000000
--- a/tests/language_2/string/interpolation9_runtime_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Almost valid string interpolation syntax.
-
-main() {
-  var x;
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-  return x;
-}
diff --git a/tests/language_2/string/interpolation9_test.dart b/tests/language_2/string/interpolation9_test.dart
deleted file mode 100644
index a6f2602ebfa..00000000000
--- a/tests/language_2/string/interpolation9_test.dart
+++ /dev/null
@@ -1,97 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Almost valid string interpolation syntax.
-
-// @dart = 2.9
-
-main() {
-  var x;
-
-  x = "$";
-  //    ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-  x = "x$";
-  //     ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-  x = "$x$";
-  //      ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-  x = "$$x";
-  //    ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-  x = "$ ";
-  //    ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-
-  x = '$';
-  //    ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-  x = 'x$';
-  //     ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-  x = '$x$';
-  //      ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-  x = '$$x';
-  //    ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-  x = '$ ';
-  //    ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-
-  x = """$""";
-  //      ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-  x = """x$""";
-  //       ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-  x = """$x$""";
-  //        ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-  x = """$$x""";
-  //      ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-  x = """$ """;
-  //      ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-
-  x = '''$''';
-  //      ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-  x = '''x$''';
-  //       ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-  x = '''$x$''';
-  //        ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-  x = '''$$x''';
-  //      ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-  x = '''$ ''';
-  //      ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-  // [cfe] A '$' has special meaning inside a string, and must be followed by an identifier or an expression in curly braces ({}).
-
-  return x;
-}
diff --git a/tests/language_2/string/interpolation_and_buffer_test.dart b/tests/language_2/string/interpolation_and_buffer_test.dart
deleted file mode 100644
index da94e5639af..00000000000
--- a/tests/language_2/string/interpolation_and_buffer_test.dart
+++ /dev/null
@@ -1,70 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Interpolation calls `toString`.
-// The evaluation of the interpolation fails if `toString` throws or returns
-// null. In Dart 2, any method overriding `Object.toString` must return a
-// `String` or `null`. In particular, if `object.toString()` returns null, then
-// `"$object"` must not evaluate to the string `"null"`.
-//
-// The specification states that the expression of an interpolation is
-// evaluated as follows:
-//
-// 1. Evaluate $e_i$ to an object $o_i$.
-// 2. Invoke the `toString` method on *o<sub>i</sub>* with no arguments,
-//    and let *r<sub>i</sub>*$ be the returned value.
-// 3. If *r<sub>i</sub>* is not an instance of the built-in type `String`,
-//    throw an `Error`.
-//
-// (Then the resulting strings are concatenated with the literal string parts).
-//
-//
-// Adding an object to a `StringBuffer` behaves the same as evaluating
-// an expression in an interpolation. It must immediately fail if the
-// object's toString throws or returns `null`.
-//
-// This ensures that implementing interpolation via a `StringBuffer`is
-// a valid implementation choice.
-
-import "package:expect/expect.dart";
-
-class ToStringString {
-  String toString() => "String";
-}
-
-class ToStringNull {
-  String toString() => null;
-}
-
-class ToStringThrows {
-  String toString() => throw "Throw";
-}
-
-void main() {
-  var s = ToStringString();
-  var n = ToStringNull();
-  var t = ToStringThrows();
-
-  Expect.equals("$s$s", "StringString");
-  // Throws immediately when evaluating the first interpolated expression.
-  Expect.throws<String>(() => "$t${throw "unreachable"}", (e) => e == "Throw");
-  Expect.throws<Error>(() => "$n${throw "unreachable"}");
-
-  // Throws immediately when adding object that doesn't return a String.
-  Expect.equals(
-      (StringBuffer()..write(s)..write(s)).toString(), "StringString");
-  Expect.throws<String>(
-      () => StringBuffer()..write(t)..write(throw "unreachable"),
-      (e) => e == "Throw");
-  Expect.throws<Error>(
-      () => StringBuffer()..write(n)..write(throw "unreachable"));
-
-  // Same behavior for constructor argument as if adding it to buffer later.
-  Expect.equals((StringBuffer(s)..write(s)).toString(), "StringString");
-  Expect.throws<String>(
-      () => StringBuffer(t)..write(throw "unreachable"), (e) => e == "Throw");
-  Expect.throws<Error>(() => StringBuffer(n)..write(throw "unreachable"));
-}
diff --git a/tests/language_2/string/interpolation_newline_test.dart b/tests/language_2/string/interpolation_newline_test.dart
deleted file mode 100644
index b22c45f5d08..00000000000
--- a/tests/language_2/string/interpolation_newline_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Test of newlines in interpolated strings.
-
-main() {
-  String expected = '[[{{}: {}}]]';
-  String a = "${ [ "${ [ '${ { '${ { } }' : { } } }' ] }" ] }";
-  String b = "${ [ "${ [ '${ { '${
-      { } }' : { } } }' ] }" ] }";
-  String c = "${ [ "${ [ '${ { '${
-      {
-      } }' : {
-      } } }' ] }" ] }";
-  if (expected != a) throw 'expecteda: $expected != $a';
-  if (a != b) throw 'ab: $a != $b';
-  if (b != c) throw 'bc: $b != $c';
-  print('$a$b$c');
-}
diff --git a/tests/language_2/string/interpolation_runtime_test.dart b/tests/language_2/string/interpolation_runtime_test.dart
deleted file mode 100644
index 57c3372faf3..00000000000
--- a/tests/language_2/string/interpolation_runtime_test.dart
+++ /dev/null
@@ -1,87 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-// Tests for string interpolation
-class StringInterpolationTest {
-  StringInterpolationTest() {}
-
-  static void m() {}
-
-  static const int i = 1;
-  static const String a = "<hi>";
-
-  int j;
-  int k;
-
-  static testMain(bool alwaysFalse) {
-    var test = new StringInterpolationTest();
-    test.j = 3;
-    test.k = 5;
-
-    // simple string
-    Expect.equals(" hi ", " hi ");
-
-    var c1 = '1';
-    var c2 = '2';
-    var c3 = '3';
-    var c4 = '4';
-    // no chars before/after/between embedded expressions
-    Expect.equals(" 1", " ${c1}");
-    Expect.equals("1 ", "${c1} ");
-    Expect.equals("1", "${c1}");
-    Expect.equals("12", "${c1}${c2}");
-    Expect.equals("12 34", "${c1}${c2} ${c3}${c4}");
-
-    // embedding static fields
-    Expect.equals(" hi 1 ", " hi ${i} ");
-    Expect.equals(" hi <hi> ", " hi ${a} ");
-
-    // embedding method parameters
-    Expect.equals("param = 9", test.embedParams(9));
-
-    // embedding a class field
-    Expect.equals("j = 3", test.embedSingleField());
-
-    // embedding more than one (non-constant) expression
-    Expect.equals(" hi 1 <hi>", " hi ${i} ${a}");
-    Expect.equals("j = 3; k = 5", test.embedMultipleFields());
-
-    // escaping $ - doesn't start the embedded expression
-    Expect.equals("\$", "escaped     \${3+2}"[12]);
-    Expect.equals("{", "escaped     \${3+2}"[13]);
-    Expect.equals("3", "escaped     \${3+2}"[14]);
-    Expect.equals("+", "escaped     \${3+2}"[15]);
-    Expect.equals("2", "escaped     \${3+2}"[16]);
-    Expect.equals("}", "escaped     \${3+2}"[17]);
-
-    if (alwaysFalse) {
-
-    }
-
-    Expect.equals("${m}", "$m");
-  }
-
-  String embedParams(int z) {
-    return "param = ${z}";
-  }
-
-  String embedSingleField() {
-    return "j = ${j}";
-  }
-
-  String embedMultipleFields() {
-    return "j = ${j}; k = ${k}";
-  }
-}
-
-main() {
-  StringInterpolationTest.testMain(false);
-}
diff --git a/tests/language_2/string/interpolation_test.dart b/tests/language_2/string/interpolation_test.dart
deleted file mode 100644
index edfc6922675..00000000000
--- a/tests/language_2/string/interpolation_test.dart
+++ /dev/null
@@ -1,87 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Tests for string interpolation
-class StringInterpolationTest {
-  StringInterpolationTest() {}
-
-  static void m() {}
-
-  static const int i = 1;
-  static const String a = "<hi>";
-
-  int j;
-  int k;
-
-  static testMain(bool alwaysFalse) {
-    var test = new StringInterpolationTest();
-    test.j = 3;
-    test.k = 5;
-
-    // simple string
-    Expect.equals(" hi ", " hi ");
-
-    var c1 = '1';
-    var c2 = '2';
-    var c3 = '3';
-    var c4 = '4';
-    // no chars before/after/between embedded expressions
-    Expect.equals(" 1", " ${c1}");
-    Expect.equals("1 ", "${c1} ");
-    Expect.equals("1", "${c1}");
-    Expect.equals("12", "${c1}${c2}");
-    Expect.equals("12 34", "${c1}${c2} ${c3}${c4}");
-
-    // embedding static fields
-    Expect.equals(" hi 1 ", " hi ${i} ");
-    Expect.equals(" hi <hi> ", " hi ${a} ");
-
-    // embedding method parameters
-    Expect.equals("param = 9", test.embedParams(9));
-
-    // embedding a class field
-    Expect.equals("j = 3", test.embedSingleField());
-
-    // embedding more than one (non-constant) expression
-    Expect.equals(" hi 1 <hi>", " hi ${i} ${a}");
-    Expect.equals("j = 3; k = 5", test.embedMultipleFields());
-
-    // escaping $ - doesn't start the embedded expression
-    Expect.equals("\$", "escaped     \${3+2}"[12]);
-    Expect.equals("{", "escaped     \${3+2}"[13]);
-    Expect.equals("3", "escaped     \${3+2}"[14]);
-    Expect.equals("+", "escaped     \${3+2}"[15]);
-    Expect.equals("2", "escaped     \${3+2}"[16]);
-    Expect.equals("}", "escaped     \${3+2}"[17]);
-
-    if (alwaysFalse) {
-      "${i.toHorse()}";
-      //   ^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_METHOD
-      // [cfe] The method 'toHorse' isn't defined for the class 'int'.
-    }
-
-    Expect.equals("${m}", "$m");
-  }
-
-  String embedParams(int z) {
-    return "param = ${z}";
-  }
-
-  String embedSingleField() {
-    return "j = ${j}";
-  }
-
-  String embedMultipleFields() {
-    return "j = ${j}; k = ${k}";
-  }
-}
-
-main() {
-  StringInterpolationTest.testMain(false);
-}
diff --git a/tests/language_2/string/intrinsics_test.dart b/tests/language_2/string/intrinsics_test.dart
deleted file mode 100644
index e139dd13a3e..00000000000
--- a/tests/language_2/string/intrinsics_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Replace with shared test once interface issues clarified.
-// Test various String intrinsics
-// VMOptions=--optimization-counter-threshold=10
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  var oneByte = "Hello world";
-  var empty = "";
-  for (int i = 0; i < 20; i++) {
-    Expect.equals(11, testLength(oneByte));
-    Expect.equals(0, testLength(empty));
-    Expect.isFalse(testIsEmpty(oneByte));
-    Expect.isTrue(testIsEmpty(empty));
-  }
-}
-
-testLength(s) {
-  return s.length;
-}
-
-testIsEmpty(s) {
-  return s.isEmpty;
-}
diff --git a/tests/language_2/string/join_test.dart b/tests/language_2/string/join_test.dart
deleted file mode 100644
index 2108fc7de90..00000000000
--- a/tests/language_2/string/join_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Regression test ensuring that only ObjectArrays are handed to the VM code.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class StringJoinTest {
-  static testMain() {
-    List<String> ga = <String>[];
-    ga.add("a");
-    ga.add("b");
-    Expect.equals("ab", ga.join());
-    Expect.equals("ab", ga.join(""));
-  }
-}
-
-main() {
-  StringJoinTest.testMain();
-}
diff --git a/tests/language_2/string/literals_test.dart b/tests/language_2/string/literals_test.dart
deleted file mode 100644
index 41d4c8df8b4..00000000000
--- a/tests/language_2/string/literals_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  var expect = new String.fromCharCodes(
-      [0, 0x0a, 0x0d, 0x7f, 0xff, 0xffff, 0xd800, 0xdc00, 0xdbff, 0xdfff]);
-  test(string) {
-    Expect.equals(expect, string);
-  }
-
-  // Plain escapes of code points.
-  test("\x00\x0a\x0d\x7f\xff\uffff\u{10000}\u{10ffff}");
-  test("""\x00\x0a\x0d\x7f\xff\uffff\u{10000}\u{10ffff}""");
-  test('\x00\x0a\x0d\x7f\xff\uffff\u{10000}\u{10ffff}');
-  test('''\x00\x0a\x0d\x7f\xff\uffff\u{10000}\u{10ffff}''');
-  // Plain escapes of individual code units.
-  test("\x00\x0a\x0d\x7f\xff\uffff\ud800\udc00\udbff\udfff");
-  test("""\x00\x0a\x0d\x7f\xff\uffff\ud800\udc00\udbff\udfff""");
-  test('\x00\x0a\x0d\x7f\xff\uffff\ud800\udc00\udbff\udfff');
-  test('''\x00\x0a\x0d\x7f\xff\uffff\ud800\udc00\udbff\udfff''');
-  // Insert newline into multiline string.
-  test("""\x00
-\x0d\x7f\xff\uffff\ud800\udc00\udbff\udfff""");
-  test('''\x00
-\x0d\x7f\xff\uffff\ud800\udc00\udbff\udfff''');
-  // Extract code points from multi-character escape string.
-  test("\x00\x0a\x0d\x7f\xff\uffff"
-      "${"\u{10000}"[0]}${"\u{10000}"[1]}"
-      "${"\u{10FFFF}"[0]}${"\u{10FFFF}"[1]}");
-  test("\x00\x0a\x0d\x7f\xff\uffff" + "\ud800" + "\udc00\udbff" + "\udfff");
-  // Single line string over multiple lines with newlines inside interpolation.
-  test("\x00\x0a\x0d\x7f\xff${
-           ""
-       }\uffff\ud800\udc00\udbff\udfff");
-}
diff --git a/tests/language_2/string/multiline_newline_cr.dart b/tests/language_2/string/multiline_newline_cr.dart
deleted file mode 100644
index 2cea98be048..00000000000
--- a/tests/language_2/string/multiline_newline_cr.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library multiline_newline_cr;
-
-const constantMultilineString = """
-a
-b
-""";
-
-var nonConstantMultilineString = """
-a
-b
-""";
-
-const constantRawMultilineString = r"""
-\a
-\b
-""";
-
-var nonConstantRawMultilineString = r"""
-\a
-\b
-""";
diff --git a/tests/language_2/string/multiline_newline_crlf.dart b/tests/language_2/string/multiline_newline_crlf.dart
deleted file mode 100644
index 39baeffb9f5..00000000000
--- a/tests/language_2/string/multiline_newline_crlf.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Note: This test relies on LF line endings in the source file.
-// It requires an entry in the .gitattributes file.
-
-library multiline_newline_crlf;
-
-const constantMultilineString = """
-a
-b
-""";
-
-var nonConstantMultilineString = """
-a
-b
-""";
-
-const constantRawMultilineString = r"""
-\a
-\b
-""";
-
-var nonConstantRawMultilineString = r"""
-\a
-\b
-""";
diff --git a/tests/language_2/string/multiline_newline_lf.dart b/tests/language_2/string/multiline_newline_lf.dart
deleted file mode 100644
index 0cfee93ec44..00000000000
--- a/tests/language_2/string/multiline_newline_lf.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Note: This test relies on LF line endings in the source file.
-// It requires an entry in the .gitattributes file.
-
-library multiline_newline_lf;
-
-const constantMultilineString = """
-a
-b
-""";
-
-var nonConstantMultilineString = """
-a
-b
-""";
-
-const constantRawMultilineString = r"""
-\a
-\b
-""";
-
-var nonConstantRawMultilineString = r"""
-\a
-\b
-""";
diff --git a/tests/language_2/string/multiline_newline_runtime_1_test.dart b/tests/language_2/string/multiline_newline_runtime_1_test.dart
deleted file mode 100644
index f45db797f13..00000000000
--- a/tests/language_2/string/multiline_newline_runtime_1_test.dart
+++ /dev/null
@@ -1,130 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-import 'multiline_newline_cr.dart' as cr;
-import 'multiline_newline_crlf.dart' as crlf;
-import 'multiline_newline_lf.dart' as lf;
-
-main() {
-  Expect.equals(4, cr.constantMultilineString.length);
-  Expect.equals(4, crlf.constantMultilineString.length);
-  Expect.equals(4, lf.constantMultilineString.length);
-
-  Expect.equals(6, cr.constantRawMultilineString.length);
-  Expect.equals(6, crlf.constantRawMultilineString.length);
-  Expect.equals(6, lf.constantRawMultilineString.length);
-
-  Expect.equals(cr.constantMultilineString, crlf.constantMultilineString);
-  Expect.equals(crlf.constantMultilineString, lf.constantMultilineString);
-  Expect.equals(lf.constantMultilineString, cr.constantMultilineString);
-
-  Expect.equals(cr.constantRawMultilineString, crlf.constantRawMultilineString);
-  Expect.equals(crlf.constantRawMultilineString, lf.constantRawMultilineString);
-  Expect.equals(lf.constantRawMultilineString, cr.constantRawMultilineString);
-
-  Expect.equals(4, cr.nonConstantMultilineString.length);
-  Expect.equals(4, crlf.nonConstantMultilineString.length);
-  Expect.equals(4, lf.nonConstantMultilineString.length);
-
-  Expect.equals(6, cr.nonConstantRawMultilineString.length);
-  Expect.equals(6, crlf.nonConstantRawMultilineString.length);
-  Expect.equals(6, lf.nonConstantRawMultilineString.length);
-
-  Expect.equals(cr.nonConstantMultilineString, crlf.nonConstantMultilineString);
-  Expect.equals(crlf.nonConstantMultilineString, lf.nonConstantMultilineString);
-  Expect.equals(lf.nonConstantMultilineString, cr.nonConstantMultilineString);
-
-  Expect.equals(
-      cr.nonConstantRawMultilineString, crlf.nonConstantRawMultilineString);
-  Expect.equals(
-      crlf.nonConstantRawMultilineString, lf.nonConstantRawMultilineString);
-  Expect.equals(
-      lf.nonConstantRawMultilineString, cr.nonConstantRawMultilineString);
-
-  const c1 =
-  cr.constantMultilineString == crlf.constantMultilineString ? true : null;
-  const c2 =
-  crlf.constantMultilineString == lf.constantMultilineString ? true : null;
-  const c3 =
-  lf.constantMultilineString == cr.constantMultilineString ? true : null;
-  Expect.isTrue(c1);
-  Expect.isTrue(c2);
-  Expect.isTrue(c3);
-
-  const c1r = cr.constantRawMultilineString == crlf.constantRawMultilineString
-      ? true
-      : null;
-  const c2r = crlf.constantRawMultilineString == lf.constantRawMultilineString
-      ? true
-      : null;
-  const c3r = lf.constantRawMultilineString == cr.constantRawMultilineString
-      ? true
-      : null;
-  Expect.isTrue(c1r);
-  Expect.isTrue(c2r);
-  Expect.isTrue(c3r);
-
-  const c4 = c1 ? 1 : 2;
-  Expect.equals(1, c4);
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-  const c7 =
-  cr.constantMultilineString != crlf.constantMultilineString ? true : null;
-  const c8 =
-  crlf.constantMultilineString != lf.constantMultilineString ? true : null;
-  const c9 =
-  lf.constantMultilineString != cr.constantMultilineString ? true : null;
-  Expect.isNull(c7);
-  Expect.isNull(c8);
-  Expect.isNull(c9);
-
-  const c7r = cr.constantRawMultilineString != crlf.constantRawMultilineString
-      ? true
-      : null;
-  const c8r = crlf.constantRawMultilineString != lf.constantRawMultilineString
-      ? true
-      : null;
-  const c9r = lf.constantRawMultilineString != cr.constantRawMultilineString
-      ? true
-      : null;
-  Expect.isNull(c7r);
-  Expect.isNull(c8r);
-  Expect.isNull(c9r);
-
-  // What's the deal with the compile-time errors below? This is to validate
-  // that constants are evaluated correctly at compile-time (or analysis
-  // time). For example, only if [c7] is evaluated correctly does it become
-  // null which leads to a compile-time error (as it isn't a boolean). For
-  // tools like dart2js, this ensures that the compile-time evaluation of
-  // constants is similar to the runtime evaluation tested above. For tools
-  // like the analyzer, this ensures that evaluation is tested (there's no
-  // runtime evaluation).
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/string/multiline_newline_runtime_2_test.dart b/tests/language_2/string/multiline_newline_runtime_2_test.dart
deleted file mode 100644
index 9e8835ef595..00000000000
--- a/tests/language_2/string/multiline_newline_runtime_2_test.dart
+++ /dev/null
@@ -1,130 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-import 'multiline_newline_cr.dart' as cr;
-import 'multiline_newline_crlf.dart' as crlf;
-import 'multiline_newline_lf.dart' as lf;
-
-main() {
-  Expect.equals(4, cr.constantMultilineString.length);
-  Expect.equals(4, crlf.constantMultilineString.length);
-  Expect.equals(4, lf.constantMultilineString.length);
-
-  Expect.equals(6, cr.constantRawMultilineString.length);
-  Expect.equals(6, crlf.constantRawMultilineString.length);
-  Expect.equals(6, lf.constantRawMultilineString.length);
-
-  Expect.equals(cr.constantMultilineString, crlf.constantMultilineString);
-  Expect.equals(crlf.constantMultilineString, lf.constantMultilineString);
-  Expect.equals(lf.constantMultilineString, cr.constantMultilineString);
-
-  Expect.equals(cr.constantRawMultilineString, crlf.constantRawMultilineString);
-  Expect.equals(crlf.constantRawMultilineString, lf.constantRawMultilineString);
-  Expect.equals(lf.constantRawMultilineString, cr.constantRawMultilineString);
-
-  Expect.equals(4, cr.nonConstantMultilineString.length);
-  Expect.equals(4, crlf.nonConstantMultilineString.length);
-  Expect.equals(4, lf.nonConstantMultilineString.length);
-
-  Expect.equals(6, cr.nonConstantRawMultilineString.length);
-  Expect.equals(6, crlf.nonConstantRawMultilineString.length);
-  Expect.equals(6, lf.nonConstantRawMultilineString.length);
-
-  Expect.equals(cr.nonConstantMultilineString, crlf.nonConstantMultilineString);
-  Expect.equals(crlf.nonConstantMultilineString, lf.nonConstantMultilineString);
-  Expect.equals(lf.nonConstantMultilineString, cr.nonConstantMultilineString);
-
-  Expect.equals(
-      cr.nonConstantRawMultilineString, crlf.nonConstantRawMultilineString);
-  Expect.equals(
-      crlf.nonConstantRawMultilineString, lf.nonConstantRawMultilineString);
-  Expect.equals(
-      lf.nonConstantRawMultilineString, cr.nonConstantRawMultilineString);
-
-  const c1 =
-  cr.constantMultilineString == crlf.constantMultilineString ? true : null;
-  const c2 =
-  crlf.constantMultilineString == lf.constantMultilineString ? true : null;
-  const c3 =
-  lf.constantMultilineString == cr.constantMultilineString ? true : null;
-  Expect.isTrue(c1);
-  Expect.isTrue(c2);
-  Expect.isTrue(c3);
-
-  const c1r = cr.constantRawMultilineString == crlf.constantRawMultilineString
-      ? true
-      : null;
-  const c2r = crlf.constantRawMultilineString == lf.constantRawMultilineString
-      ? true
-      : null;
-  const c3r = lf.constantRawMultilineString == cr.constantRawMultilineString
-      ? true
-      : null;
-  Expect.isTrue(c1r);
-  Expect.isTrue(c2r);
-  Expect.isTrue(c3r);
-
-
-
-
-  const c5 = c2 ? 2 : 3;
-  Expect.equals(2, c5);
-
-
-
-
-
-
-
-
-
-
-
-
-
-  const c7 =
-  cr.constantMultilineString != crlf.constantMultilineString ? true : null;
-  const c8 =
-  crlf.constantMultilineString != lf.constantMultilineString ? true : null;
-  const c9 =
-  lf.constantMultilineString != cr.constantMultilineString ? true : null;
-  Expect.isNull(c7);
-  Expect.isNull(c8);
-  Expect.isNull(c9);
-
-  const c7r = cr.constantRawMultilineString != crlf.constantRawMultilineString
-      ? true
-      : null;
-  const c8r = crlf.constantRawMultilineString != lf.constantRawMultilineString
-      ? true
-      : null;
-  const c9r = lf.constantRawMultilineString != cr.constantRawMultilineString
-      ? true
-      : null;
-  Expect.isNull(c7r);
-  Expect.isNull(c8r);
-  Expect.isNull(c9r);
-
-  // What's the deal with the compile-time errors below? This is to validate
-  // that constants are evaluated correctly at compile-time (or analysis
-  // time). For example, only if [c7] is evaluated correctly does it become
-  // null which leads to a compile-time error (as it isn't a boolean). For
-  // tools like dart2js, this ensures that the compile-time evaluation of
-  // constants is similar to the runtime evaluation tested above. For tools
-  // like the analyzer, this ensures that evaluation is tested (there's no
-  // runtime evaluation).
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/string/multiline_newline_runtime_3_test.dart b/tests/language_2/string/multiline_newline_runtime_3_test.dart
deleted file mode 100644
index 50624689a7d..00000000000
--- a/tests/language_2/string/multiline_newline_runtime_3_test.dart
+++ /dev/null
@@ -1,130 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-import 'multiline_newline_cr.dart' as cr;
-import 'multiline_newline_crlf.dart' as crlf;
-import 'multiline_newline_lf.dart' as lf;
-
-main() {
-  Expect.equals(4, cr.constantMultilineString.length);
-  Expect.equals(4, crlf.constantMultilineString.length);
-  Expect.equals(4, lf.constantMultilineString.length);
-
-  Expect.equals(6, cr.constantRawMultilineString.length);
-  Expect.equals(6, crlf.constantRawMultilineString.length);
-  Expect.equals(6, lf.constantRawMultilineString.length);
-
-  Expect.equals(cr.constantMultilineString, crlf.constantMultilineString);
-  Expect.equals(crlf.constantMultilineString, lf.constantMultilineString);
-  Expect.equals(lf.constantMultilineString, cr.constantMultilineString);
-
-  Expect.equals(cr.constantRawMultilineString, crlf.constantRawMultilineString);
-  Expect.equals(crlf.constantRawMultilineString, lf.constantRawMultilineString);
-  Expect.equals(lf.constantRawMultilineString, cr.constantRawMultilineString);
-
-  Expect.equals(4, cr.nonConstantMultilineString.length);
-  Expect.equals(4, crlf.nonConstantMultilineString.length);
-  Expect.equals(4, lf.nonConstantMultilineString.length);
-
-  Expect.equals(6, cr.nonConstantRawMultilineString.length);
-  Expect.equals(6, crlf.nonConstantRawMultilineString.length);
-  Expect.equals(6, lf.nonConstantRawMultilineString.length);
-
-  Expect.equals(cr.nonConstantMultilineString, crlf.nonConstantMultilineString);
-  Expect.equals(crlf.nonConstantMultilineString, lf.nonConstantMultilineString);
-  Expect.equals(lf.nonConstantMultilineString, cr.nonConstantMultilineString);
-
-  Expect.equals(
-      cr.nonConstantRawMultilineString, crlf.nonConstantRawMultilineString);
-  Expect.equals(
-      crlf.nonConstantRawMultilineString, lf.nonConstantRawMultilineString);
-  Expect.equals(
-      lf.nonConstantRawMultilineString, cr.nonConstantRawMultilineString);
-
-  const c1 =
-  cr.constantMultilineString == crlf.constantMultilineString ? true : null;
-  const c2 =
-  crlf.constantMultilineString == lf.constantMultilineString ? true : null;
-  const c3 =
-  lf.constantMultilineString == cr.constantMultilineString ? true : null;
-  Expect.isTrue(c1);
-  Expect.isTrue(c2);
-  Expect.isTrue(c3);
-
-  const c1r = cr.constantRawMultilineString == crlf.constantRawMultilineString
-      ? true
-      : null;
-  const c2r = crlf.constantRawMultilineString == lf.constantRawMultilineString
-      ? true
-      : null;
-  const c3r = lf.constantRawMultilineString == cr.constantRawMultilineString
-      ? true
-      : null;
-  Expect.isTrue(c1r);
-  Expect.isTrue(c2r);
-  Expect.isTrue(c3r);
-
-
-
-
-
-
-
-  const c6 = c3 ? 3 : 4;
-  Expect.equals(3, c6);
-
-
-
-
-
-
-
-
-
-
-  const c7 =
-  cr.constantMultilineString != crlf.constantMultilineString ? true : null;
-  const c8 =
-  crlf.constantMultilineString != lf.constantMultilineString ? true : null;
-  const c9 =
-  lf.constantMultilineString != cr.constantMultilineString ? true : null;
-  Expect.isNull(c7);
-  Expect.isNull(c8);
-  Expect.isNull(c9);
-
-  const c7r = cr.constantRawMultilineString != crlf.constantRawMultilineString
-      ? true
-      : null;
-  const c8r = crlf.constantRawMultilineString != lf.constantRawMultilineString
-      ? true
-      : null;
-  const c9r = lf.constantRawMultilineString != cr.constantRawMultilineString
-      ? true
-      : null;
-  Expect.isNull(c7r);
-  Expect.isNull(c8r);
-  Expect.isNull(c9r);
-
-  // What's the deal with the compile-time errors below? This is to validate
-  // that constants are evaluated correctly at compile-time (or analysis
-  // time). For example, only if [c7] is evaluated correctly does it become
-  // null which leads to a compile-time error (as it isn't a boolean). For
-  // tools like dart2js, this ensures that the compile-time evaluation of
-  // constants is similar to the runtime evaluation tested above. For tools
-  // like the analyzer, this ensures that evaluation is tested (there's no
-  // runtime evaluation).
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/string/multiline_newline_runtime_4_test.dart b/tests/language_2/string/multiline_newline_runtime_4_test.dart
deleted file mode 100644
index 942a129e099..00000000000
--- a/tests/language_2/string/multiline_newline_runtime_4_test.dart
+++ /dev/null
@@ -1,130 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-import 'multiline_newline_cr.dart' as cr;
-import 'multiline_newline_crlf.dart' as crlf;
-import 'multiline_newline_lf.dart' as lf;
-
-main() {
-  Expect.equals(4, cr.constantMultilineString.length);
-  Expect.equals(4, crlf.constantMultilineString.length);
-  Expect.equals(4, lf.constantMultilineString.length);
-
-  Expect.equals(6, cr.constantRawMultilineString.length);
-  Expect.equals(6, crlf.constantRawMultilineString.length);
-  Expect.equals(6, lf.constantRawMultilineString.length);
-
-  Expect.equals(cr.constantMultilineString, crlf.constantMultilineString);
-  Expect.equals(crlf.constantMultilineString, lf.constantMultilineString);
-  Expect.equals(lf.constantMultilineString, cr.constantMultilineString);
-
-  Expect.equals(cr.constantRawMultilineString, crlf.constantRawMultilineString);
-  Expect.equals(crlf.constantRawMultilineString, lf.constantRawMultilineString);
-  Expect.equals(lf.constantRawMultilineString, cr.constantRawMultilineString);
-
-  Expect.equals(4, cr.nonConstantMultilineString.length);
-  Expect.equals(4, crlf.nonConstantMultilineString.length);
-  Expect.equals(4, lf.nonConstantMultilineString.length);
-
-  Expect.equals(6, cr.nonConstantRawMultilineString.length);
-  Expect.equals(6, crlf.nonConstantRawMultilineString.length);
-  Expect.equals(6, lf.nonConstantRawMultilineString.length);
-
-  Expect.equals(cr.nonConstantMultilineString, crlf.nonConstantMultilineString);
-  Expect.equals(crlf.nonConstantMultilineString, lf.nonConstantMultilineString);
-  Expect.equals(lf.nonConstantMultilineString, cr.nonConstantMultilineString);
-
-  Expect.equals(
-      cr.nonConstantRawMultilineString, crlf.nonConstantRawMultilineString);
-  Expect.equals(
-      crlf.nonConstantRawMultilineString, lf.nonConstantRawMultilineString);
-  Expect.equals(
-      lf.nonConstantRawMultilineString, cr.nonConstantRawMultilineString);
-
-  const c1 =
-  cr.constantMultilineString == crlf.constantMultilineString ? true : null;
-  const c2 =
-  crlf.constantMultilineString == lf.constantMultilineString ? true : null;
-  const c3 =
-  lf.constantMultilineString == cr.constantMultilineString ? true : null;
-  Expect.isTrue(c1);
-  Expect.isTrue(c2);
-  Expect.isTrue(c3);
-
-  const c1r = cr.constantRawMultilineString == crlf.constantRawMultilineString
-      ? true
-      : null;
-  const c2r = crlf.constantRawMultilineString == lf.constantRawMultilineString
-      ? true
-      : null;
-  const c3r = lf.constantRawMultilineString == cr.constantRawMultilineString
-      ? true
-      : null;
-  Expect.isTrue(c1r);
-  Expect.isTrue(c2r);
-  Expect.isTrue(c3r);
-
-
-
-
-
-
-
-
-
-
-  const c4r = c1r ? 1 : 2;
-  Expect.equals(1, c4r);
-
-
-
-
-
-
-
-  const c7 =
-  cr.constantMultilineString != crlf.constantMultilineString ? true : null;
-  const c8 =
-  crlf.constantMultilineString != lf.constantMultilineString ? true : null;
-  const c9 =
-  lf.constantMultilineString != cr.constantMultilineString ? true : null;
-  Expect.isNull(c7);
-  Expect.isNull(c8);
-  Expect.isNull(c9);
-
-  const c7r = cr.constantRawMultilineString != crlf.constantRawMultilineString
-      ? true
-      : null;
-  const c8r = crlf.constantRawMultilineString != lf.constantRawMultilineString
-      ? true
-      : null;
-  const c9r = lf.constantRawMultilineString != cr.constantRawMultilineString
-      ? true
-      : null;
-  Expect.isNull(c7r);
-  Expect.isNull(c8r);
-  Expect.isNull(c9r);
-
-  // What's the deal with the compile-time errors below? This is to validate
-  // that constants are evaluated correctly at compile-time (or analysis
-  // time). For example, only if [c7] is evaluated correctly does it become
-  // null which leads to a compile-time error (as it isn't a boolean). For
-  // tools like dart2js, this ensures that the compile-time evaluation of
-  // constants is similar to the runtime evaluation tested above. For tools
-  // like the analyzer, this ensures that evaluation is tested (there's no
-  // runtime evaluation).
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/string/multiline_newline_runtime_5_test.dart b/tests/language_2/string/multiline_newline_runtime_5_test.dart
deleted file mode 100644
index 5a662e0916c..00000000000
--- a/tests/language_2/string/multiline_newline_runtime_5_test.dart
+++ /dev/null
@@ -1,130 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-import 'multiline_newline_cr.dart' as cr;
-import 'multiline_newline_crlf.dart' as crlf;
-import 'multiline_newline_lf.dart' as lf;
-
-main() {
-  Expect.equals(4, cr.constantMultilineString.length);
-  Expect.equals(4, crlf.constantMultilineString.length);
-  Expect.equals(4, lf.constantMultilineString.length);
-
-  Expect.equals(6, cr.constantRawMultilineString.length);
-  Expect.equals(6, crlf.constantRawMultilineString.length);
-  Expect.equals(6, lf.constantRawMultilineString.length);
-
-  Expect.equals(cr.constantMultilineString, crlf.constantMultilineString);
-  Expect.equals(crlf.constantMultilineString, lf.constantMultilineString);
-  Expect.equals(lf.constantMultilineString, cr.constantMultilineString);
-
-  Expect.equals(cr.constantRawMultilineString, crlf.constantRawMultilineString);
-  Expect.equals(crlf.constantRawMultilineString, lf.constantRawMultilineString);
-  Expect.equals(lf.constantRawMultilineString, cr.constantRawMultilineString);
-
-  Expect.equals(4, cr.nonConstantMultilineString.length);
-  Expect.equals(4, crlf.nonConstantMultilineString.length);
-  Expect.equals(4, lf.nonConstantMultilineString.length);
-
-  Expect.equals(6, cr.nonConstantRawMultilineString.length);
-  Expect.equals(6, crlf.nonConstantRawMultilineString.length);
-  Expect.equals(6, lf.nonConstantRawMultilineString.length);
-
-  Expect.equals(cr.nonConstantMultilineString, crlf.nonConstantMultilineString);
-  Expect.equals(crlf.nonConstantMultilineString, lf.nonConstantMultilineString);
-  Expect.equals(lf.nonConstantMultilineString, cr.nonConstantMultilineString);
-
-  Expect.equals(
-      cr.nonConstantRawMultilineString, crlf.nonConstantRawMultilineString);
-  Expect.equals(
-      crlf.nonConstantRawMultilineString, lf.nonConstantRawMultilineString);
-  Expect.equals(
-      lf.nonConstantRawMultilineString, cr.nonConstantRawMultilineString);
-
-  const c1 =
-  cr.constantMultilineString == crlf.constantMultilineString ? true : null;
-  const c2 =
-  crlf.constantMultilineString == lf.constantMultilineString ? true : null;
-  const c3 =
-  lf.constantMultilineString == cr.constantMultilineString ? true : null;
-  Expect.isTrue(c1);
-  Expect.isTrue(c2);
-  Expect.isTrue(c3);
-
-  const c1r = cr.constantRawMultilineString == crlf.constantRawMultilineString
-      ? true
-      : null;
-  const c2r = crlf.constantRawMultilineString == lf.constantRawMultilineString
-      ? true
-      : null;
-  const c3r = lf.constantRawMultilineString == cr.constantRawMultilineString
-      ? true
-      : null;
-  Expect.isTrue(c1r);
-  Expect.isTrue(c2r);
-  Expect.isTrue(c3r);
-
-
-
-
-
-
-
-
-
-
-
-
-
-  const c5r = c2r ? 2 : 3;
-  Expect.equals(2, c5r);
-
-
-
-
-  const c7 =
-  cr.constantMultilineString != crlf.constantMultilineString ? true : null;
-  const c8 =
-  crlf.constantMultilineString != lf.constantMultilineString ? true : null;
-  const c9 =
-  lf.constantMultilineString != cr.constantMultilineString ? true : null;
-  Expect.isNull(c7);
-  Expect.isNull(c8);
-  Expect.isNull(c9);
-
-  const c7r = cr.constantRawMultilineString != crlf.constantRawMultilineString
-      ? true
-      : null;
-  const c8r = crlf.constantRawMultilineString != lf.constantRawMultilineString
-      ? true
-      : null;
-  const c9r = lf.constantRawMultilineString != cr.constantRawMultilineString
-      ? true
-      : null;
-  Expect.isNull(c7r);
-  Expect.isNull(c8r);
-  Expect.isNull(c9r);
-
-  // What's the deal with the compile-time errors below? This is to validate
-  // that constants are evaluated correctly at compile-time (or analysis
-  // time). For example, only if [c7] is evaluated correctly does it become
-  // null which leads to a compile-time error (as it isn't a boolean). For
-  // tools like dart2js, this ensures that the compile-time evaluation of
-  // constants is similar to the runtime evaluation tested above. For tools
-  // like the analyzer, this ensures that evaluation is tested (there's no
-  // runtime evaluation).
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/string/multiline_newline_runtime_6_test.dart b/tests/language_2/string/multiline_newline_runtime_6_test.dart
deleted file mode 100644
index ffc02893b6b..00000000000
--- a/tests/language_2/string/multiline_newline_runtime_6_test.dart
+++ /dev/null
@@ -1,130 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-import 'multiline_newline_cr.dart' as cr;
-import 'multiline_newline_crlf.dart' as crlf;
-import 'multiline_newline_lf.dart' as lf;
-
-main() {
-  Expect.equals(4, cr.constantMultilineString.length);
-  Expect.equals(4, crlf.constantMultilineString.length);
-  Expect.equals(4, lf.constantMultilineString.length);
-
-  Expect.equals(6, cr.constantRawMultilineString.length);
-  Expect.equals(6, crlf.constantRawMultilineString.length);
-  Expect.equals(6, lf.constantRawMultilineString.length);
-
-  Expect.equals(cr.constantMultilineString, crlf.constantMultilineString);
-  Expect.equals(crlf.constantMultilineString, lf.constantMultilineString);
-  Expect.equals(lf.constantMultilineString, cr.constantMultilineString);
-
-  Expect.equals(cr.constantRawMultilineString, crlf.constantRawMultilineString);
-  Expect.equals(crlf.constantRawMultilineString, lf.constantRawMultilineString);
-  Expect.equals(lf.constantRawMultilineString, cr.constantRawMultilineString);
-
-  Expect.equals(4, cr.nonConstantMultilineString.length);
-  Expect.equals(4, crlf.nonConstantMultilineString.length);
-  Expect.equals(4, lf.nonConstantMultilineString.length);
-
-  Expect.equals(6, cr.nonConstantRawMultilineString.length);
-  Expect.equals(6, crlf.nonConstantRawMultilineString.length);
-  Expect.equals(6, lf.nonConstantRawMultilineString.length);
-
-  Expect.equals(cr.nonConstantMultilineString, crlf.nonConstantMultilineString);
-  Expect.equals(crlf.nonConstantMultilineString, lf.nonConstantMultilineString);
-  Expect.equals(lf.nonConstantMultilineString, cr.nonConstantMultilineString);
-
-  Expect.equals(
-      cr.nonConstantRawMultilineString, crlf.nonConstantRawMultilineString);
-  Expect.equals(
-      crlf.nonConstantRawMultilineString, lf.nonConstantRawMultilineString);
-  Expect.equals(
-      lf.nonConstantRawMultilineString, cr.nonConstantRawMultilineString);
-
-  const c1 =
-  cr.constantMultilineString == crlf.constantMultilineString ? true : null;
-  const c2 =
-  crlf.constantMultilineString == lf.constantMultilineString ? true : null;
-  const c3 =
-  lf.constantMultilineString == cr.constantMultilineString ? true : null;
-  Expect.isTrue(c1);
-  Expect.isTrue(c2);
-  Expect.isTrue(c3);
-
-  const c1r = cr.constantRawMultilineString == crlf.constantRawMultilineString
-      ? true
-      : null;
-  const c2r = crlf.constantRawMultilineString == lf.constantRawMultilineString
-      ? true
-      : null;
-  const c3r = lf.constantRawMultilineString == cr.constantRawMultilineString
-      ? true
-      : null;
-  Expect.isTrue(c1r);
-  Expect.isTrue(c2r);
-  Expect.isTrue(c3r);
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-  const c6r = c3r ? 3 : 4;
-  Expect.equals(3, c6r);
-
-  const c7 =
-  cr.constantMultilineString != crlf.constantMultilineString ? true : null;
-  const c8 =
-  crlf.constantMultilineString != lf.constantMultilineString ? true : null;
-  const c9 =
-  lf.constantMultilineString != cr.constantMultilineString ? true : null;
-  Expect.isNull(c7);
-  Expect.isNull(c8);
-  Expect.isNull(c9);
-
-  const c7r = cr.constantRawMultilineString != crlf.constantRawMultilineString
-      ? true
-      : null;
-  const c8r = crlf.constantRawMultilineString != lf.constantRawMultilineString
-      ? true
-      : null;
-  const c9r = lf.constantRawMultilineString != cr.constantRawMultilineString
-      ? true
-      : null;
-  Expect.isNull(c7r);
-  Expect.isNull(c8r);
-  Expect.isNull(c9r);
-
-  // What's the deal with the compile-time errors below? This is to validate
-  // that constants are evaluated correctly at compile-time (or analysis
-  // time). For example, only if [c7] is evaluated correctly does it become
-  // null which leads to a compile-time error (as it isn't a boolean). For
-  // tools like dart2js, this ensures that the compile-time evaluation of
-  // constants is similar to the runtime evaluation tested above. For tools
-  // like the analyzer, this ensures that evaluation is tested (there's no
-  // runtime evaluation).
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/string/multiline_newline_runtime_test.dart b/tests/language_2/string/multiline_newline_runtime_test.dart
deleted file mode 100644
index f4590777ace..00000000000
--- a/tests/language_2/string/multiline_newline_runtime_test.dart
+++ /dev/null
@@ -1,130 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-import 'multiline_newline_cr.dart' as cr;
-import 'multiline_newline_crlf.dart' as crlf;
-import 'multiline_newline_lf.dart' as lf;
-
-main() {
-  Expect.equals(4, cr.constantMultilineString.length);
-  Expect.equals(4, crlf.constantMultilineString.length);
-  Expect.equals(4, lf.constantMultilineString.length);
-
-  Expect.equals(6, cr.constantRawMultilineString.length);
-  Expect.equals(6, crlf.constantRawMultilineString.length);
-  Expect.equals(6, lf.constantRawMultilineString.length);
-
-  Expect.equals(cr.constantMultilineString, crlf.constantMultilineString);
-  Expect.equals(crlf.constantMultilineString, lf.constantMultilineString);
-  Expect.equals(lf.constantMultilineString, cr.constantMultilineString);
-
-  Expect.equals(cr.constantRawMultilineString, crlf.constantRawMultilineString);
-  Expect.equals(crlf.constantRawMultilineString, lf.constantRawMultilineString);
-  Expect.equals(lf.constantRawMultilineString, cr.constantRawMultilineString);
-
-  Expect.equals(4, cr.nonConstantMultilineString.length);
-  Expect.equals(4, crlf.nonConstantMultilineString.length);
-  Expect.equals(4, lf.nonConstantMultilineString.length);
-
-  Expect.equals(6, cr.nonConstantRawMultilineString.length);
-  Expect.equals(6, crlf.nonConstantRawMultilineString.length);
-  Expect.equals(6, lf.nonConstantRawMultilineString.length);
-
-  Expect.equals(cr.nonConstantMultilineString, crlf.nonConstantMultilineString);
-  Expect.equals(crlf.nonConstantMultilineString, lf.nonConstantMultilineString);
-  Expect.equals(lf.nonConstantMultilineString, cr.nonConstantMultilineString);
-
-  Expect.equals(
-      cr.nonConstantRawMultilineString, crlf.nonConstantRawMultilineString);
-  Expect.equals(
-      crlf.nonConstantRawMultilineString, lf.nonConstantRawMultilineString);
-  Expect.equals(
-      lf.nonConstantRawMultilineString, cr.nonConstantRawMultilineString);
-
-  const c1 =
-  cr.constantMultilineString == crlf.constantMultilineString ? true : null;
-  const c2 =
-  crlf.constantMultilineString == lf.constantMultilineString ? true : null;
-  const c3 =
-  lf.constantMultilineString == cr.constantMultilineString ? true : null;
-  Expect.isTrue(c1);
-  Expect.isTrue(c2);
-  Expect.isTrue(c3);
-
-  const c1r = cr.constantRawMultilineString == crlf.constantRawMultilineString
-      ? true
-      : null;
-  const c2r = crlf.constantRawMultilineString == lf.constantRawMultilineString
-      ? true
-      : null;
-  const c3r = lf.constantRawMultilineString == cr.constantRawMultilineString
-      ? true
-      : null;
-  Expect.isTrue(c1r);
-  Expect.isTrue(c2r);
-  Expect.isTrue(c3r);
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-  const c7 =
-  cr.constantMultilineString != crlf.constantMultilineString ? true : null;
-  const c8 =
-  crlf.constantMultilineString != lf.constantMultilineString ? true : null;
-  const c9 =
-  lf.constantMultilineString != cr.constantMultilineString ? true : null;
-  Expect.isNull(c7);
-  Expect.isNull(c8);
-  Expect.isNull(c9);
-
-  const c7r = cr.constantRawMultilineString != crlf.constantRawMultilineString
-      ? true
-      : null;
-  const c8r = crlf.constantRawMultilineString != lf.constantRawMultilineString
-      ? true
-      : null;
-  const c9r = lf.constantRawMultilineString != cr.constantRawMultilineString
-      ? true
-      : null;
-  Expect.isNull(c7r);
-  Expect.isNull(c8r);
-  Expect.isNull(c9r);
-
-  // What's the deal with the compile-time errors below? This is to validate
-  // that constants are evaluated correctly at compile-time (or analysis
-  // time). For example, only if [c7] is evaluated correctly does it become
-  // null which leads to a compile-time error (as it isn't a boolean). For
-  // tools like dart2js, this ensures that the compile-time evaluation of
-  // constants is similar to the runtime evaluation tested above. For tools
-  // like the analyzer, this ensures that evaluation is tested (there's no
-  // runtime evaluation).
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/string/multiline_newline_test.dart b/tests/language_2/string/multiline_newline_test.dart
deleted file mode 100644
index 250706efa4a..00000000000
--- a/tests/language_2/string/multiline_newline_test.dart
+++ /dev/null
@@ -1,151 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'multiline_newline_cr.dart' as cr;
-import 'multiline_newline_crlf.dart' as crlf;
-import 'multiline_newline_lf.dart' as lf;
-
-main() {
-  Expect.equals(4, cr.constantMultilineString.length);
-  Expect.equals(4, crlf.constantMultilineString.length);
-  Expect.equals(4, lf.constantMultilineString.length);
-
-  Expect.equals(6, cr.constantRawMultilineString.length);
-  Expect.equals(6, crlf.constantRawMultilineString.length);
-  Expect.equals(6, lf.constantRawMultilineString.length);
-
-  Expect.equals(cr.constantMultilineString, crlf.constantMultilineString);
-  Expect.equals(crlf.constantMultilineString, lf.constantMultilineString);
-  Expect.equals(lf.constantMultilineString, cr.constantMultilineString);
-
-  Expect.equals(cr.constantRawMultilineString, crlf.constantRawMultilineString);
-  Expect.equals(crlf.constantRawMultilineString, lf.constantRawMultilineString);
-  Expect.equals(lf.constantRawMultilineString, cr.constantRawMultilineString);
-
-  Expect.equals(4, cr.nonConstantMultilineString.length);
-  Expect.equals(4, crlf.nonConstantMultilineString.length);
-  Expect.equals(4, lf.nonConstantMultilineString.length);
-
-  Expect.equals(6, cr.nonConstantRawMultilineString.length);
-  Expect.equals(6, crlf.nonConstantRawMultilineString.length);
-  Expect.equals(6, lf.nonConstantRawMultilineString.length);
-
-  Expect.equals(cr.nonConstantMultilineString, crlf.nonConstantMultilineString);
-  Expect.equals(crlf.nonConstantMultilineString, lf.nonConstantMultilineString);
-  Expect.equals(lf.nonConstantMultilineString, cr.nonConstantMultilineString);
-
-  Expect.equals(
-      cr.nonConstantRawMultilineString, crlf.nonConstantRawMultilineString);
-  Expect.equals(
-      crlf.nonConstantRawMultilineString, lf.nonConstantRawMultilineString);
-  Expect.equals(
-      lf.nonConstantRawMultilineString, cr.nonConstantRawMultilineString);
-
-  const c1 =
-  cr.constantMultilineString == crlf.constantMultilineString ? true : null;
-  const c2 =
-  crlf.constantMultilineString == lf.constantMultilineString ? true : null;
-  const c3 =
-  lf.constantMultilineString == cr.constantMultilineString ? true : null;
-  Expect.isTrue(c1);
-  Expect.isTrue(c2);
-  Expect.isTrue(c3);
-
-  const c1r = cr.constantRawMultilineString == crlf.constantRawMultilineString
-      ? true
-      : null;
-  const c2r = crlf.constantRawMultilineString == lf.constantRawMultilineString
-      ? true
-      : null;
-  const c3r = lf.constantRawMultilineString == cr.constantRawMultilineString
-      ? true
-      : null;
-  Expect.isTrue(c1r);
-  Expect.isTrue(c2r);
-  Expect.isTrue(c3r);
-
-  const c4 = c1 ? 1 : 2;
-  Expect.equals(1, c4);
-
-  const c5 = c2 ? 2 : 3;
-  Expect.equals(2, c5);
-
-  const c6 = c3 ? 3 : 4;
-  Expect.equals(3, c6);
-
-  const c4r = c1r ? 1 : 2;
-  Expect.equals(1, c4r);
-
-  const c5r = c2r ? 2 : 3;
-  Expect.equals(2, c5r);
-
-  const c6r = c3r ? 3 : 4;
-  Expect.equals(3, c6r);
-
-  const c7 =
-  cr.constantMultilineString != crlf.constantMultilineString ? true : null;
-  const c8 =
-  crlf.constantMultilineString != lf.constantMultilineString ? true : null;
-  const c9 =
-  lf.constantMultilineString != cr.constantMultilineString ? true : null;
-  Expect.isNull(c7);
-  Expect.isNull(c8);
-  Expect.isNull(c9);
-
-  const c7r = cr.constantRawMultilineString != crlf.constantRawMultilineString
-      ? true
-      : null;
-  const c8r = crlf.constantRawMultilineString != lf.constantRawMultilineString
-      ? true
-      : null;
-  const c9r = lf.constantRawMultilineString != cr.constantRawMultilineString
-      ? true
-      : null;
-  Expect.isNull(c7r);
-  Expect.isNull(c8r);
-  Expect.isNull(c9r);
-
-  // What's the deal with the compile-time errors below? This is to validate
-  // that constants are evaluated correctly at compile-time (or analysis
-  // time). For example, only if [c7] is evaluated correctly does it become
-  // null which leads to a compile-time error (as it isn't a boolean). For
-  // tools like dart2js, this ensures that the compile-time evaluation of
-  // constants is similar to the runtime evaluation tested above. For tools
-  // like the analyzer, this ensures that evaluation is tested (there's no
-  // runtime evaluation).
-  const c10 = c7 ? 1 : 2;
-  //          ^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_TYPE_BOOL
-  //             ^
-  // [cfe] Constant evaluation error:
-  const c11 = c8 ? 2 : 3;
-  //          ^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_TYPE_BOOL
-  //             ^
-  // [cfe] Constant evaluation error:
-  const c12 = c9 ? 3 : 4;
-  //          ^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_TYPE_BOOL
-  //             ^
-  // [cfe] Constant evaluation error:
-
-  const c10r = c7r ? 1 : 2;
-  //           ^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_TYPE_BOOL
-  //               ^
-  // [cfe] Constant evaluation error:
-  const c11r = c8r ? 2 : 3;
-  //           ^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_TYPE_BOOL
-  //               ^
-  // [cfe] Constant evaluation error:
-  const c12r = c9r ? 3 : 4;
-  //           ^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_EVAL_TYPE_BOOL
-  //               ^
-  // [cfe] Constant evaluation error:
-}
diff --git a/tests/language_2/string/multiline_strings_test.dart b/tests/language_2/string/multiline_strings_test.dart
deleted file mode 100644
index 1c253e54870..00000000000
--- a/tests/language_2/string/multiline_strings_test.dart
+++ /dev/null
@@ -1,72 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Note: This test relies on LF line endings in the source file.
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.equals(
-      'foo',
-      '''  
-foo''');
-
-  Expect.equals(
-      '\\\nfoo',
-      '''\\
-foo''');
-
-  Expect.equals(
-      '\t\nfoo',
-      '''\t
-foo''');
-
-  Expect.equals(
-      'foo',
-      '''\
-foo''');
-
-  Expect.equals(
-      'foo',
-      '''\ \
-foo''');
-
-  Expect.equals(
-      ' \nfoo',
-      '''\x20
-foo''');
-
-  String x = ' ';
-  Expect.equals(
-      ' \nfoo',
-      '''$x
-foo''');
-
-  Expect.equals(
-      'foo',
-      r'''  
-foo''');
-
-  Expect.equals(
-      '\\\\\nfoo',
-      r'''\\
-foo''');
-
-  Expect.equals(
-      '\\t\nfoo',
-      r'''\t
-foo''');
-
-  Expect.equals(
-      'foo',
-      r'''\
-foo''');
-
-  Expect.equals(
-      'foo',
-      r'''\ \
-foo''');
-}
diff --git a/tests/language_2/string/no_operator_runtime_test.dart b/tests/language_2/string/no_operator_runtime_test.dart
deleted file mode 100644
index 824c470f736..00000000000
--- a/tests/language_2/string/no_operator_runtime_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-main() {
-  var x = "x";
-  var y = "y";
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/string/no_operator_test.dart b/tests/language_2/string/no_operator_test.dart
deleted file mode 100644
index 5b3e4aa0ce1..00000000000
--- a/tests/language_2/string/no_operator_test.dart
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  var x = "x";
-  var y = "y";
-  Expect.throws(() => x < y);
-  //                    ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '<' isn't defined for the class 'String'.
-  Expect.throws(() => x <= y);
-  //                    ^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '<=' isn't defined for the class 'String'.
-  Expect.throws(() => x > y);
-  //                    ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '>' isn't defined for the class 'String'.
-  Expect.throws(() => x >= y);
-  //                    ^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '>=' isn't defined for the class 'String'.
-  Expect.throws(() => x - y);
-  //                    ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '-' isn't defined for the class 'String'.
-  Expect.throws(() => x * y);
-  //                      ^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] A value of type 'String' can't be assigned to a variable of type 'int'.
-  Expect.throws(() => x / y);
-  //                    ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '/' isn't defined for the class 'String'.
-  Expect.throws(() => x ~/ y);
-  //                    ^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '~/' isn't defined for the class 'String'.
-  Expect.throws(() => x % y);
-  //                    ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '%' isn't defined for the class 'String'.
-  Expect.throws(() => x >> y);
-  //                    ^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '>>' isn't defined for the class 'String'.
-  Expect.throws(() => x << y);
-  //                    ^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '<<' isn't defined for the class 'String'.
-  Expect.throws(() => x & y);
-  //                    ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '&' isn't defined for the class 'String'.
-  Expect.throws(() => x | y);
-  //                    ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '|' isn't defined for the class 'String'.
-  Expect.throws(() => x ^ y);
-  //                    ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '^' isn't defined for the class 'String'.
-  Expect.throws(() => -x);
-  //                  ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator 'unary-' isn't defined for the class 'String'.
-  Expect.throws(() => ~x);
-  //                  ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '~' isn't defined for the class 'String'.
-}
diff --git a/tests/language_2/string/optimizations_test.dart b/tests/language_2/string/optimizations_test.dart
deleted file mode 100644
index 5c2bb9dee48..00000000000
--- a/tests/language_2/string/optimizations_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js's type inferrer, that used to not
-// correctly infer optional named parameters.
-
-import "package:expect/expect.dart";
-
-@pragma('vm:never-inline')
-@pragma('dart2js:noInline')
-foo({path}) {
-  () => 42;
-  return path.toString();
-}
-
-@pragma('vm:never-inline')
-@pragma('dart2js:noInline')
-bar({path}) {
-  () => 42;
-  return path;
-}
-
-main() {
-  var a = <Object>[foo(path: '42'), foo(), 42, bar(path: '54')];
-  Expect.isTrue(a[1] is String);
-  Expect.throwsNoSuchMethodError(() => bar().concat('54'));
-}
diff --git a/tests/language_2/string/raw_string_test.dart b/tests/language_2/string/raw_string_test.dart
deleted file mode 100644
index cf9b1ce236b..00000000000
--- a/tests/language_2/string/raw_string_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Note: This test relies on LF line endings in the source file.
-
-import "package:expect/expect.dart";
-
-class RawStringTest {
-  static testMain() {
-    Expect.equals("abcd", r"abcd");
-    Expect.equals("", r"");
-    Expect.equals("", r'');
-    Expect.equals("", r"""""");
-    Expect.equals("", r'''''');
-    Expect.equals("''''", r"''''");
-    Expect.equals('""""', r'""""');
-    Expect.equals(
-        "1\n2\n3",
-        r"""1
-2
-3""");
-    Expect.equals(
-        "1\n2\n3",
-        r'''1
-2
-3''');
-    Expect.equals(
-        "1",
-        r"""
-1""");
-    Expect.equals(
-        "1",
-        r'''
-1''');
-    Expect.equals("'", r"'");
-    Expect.equals('"', r'"');
-    Expect.equals("1", r"1");
-    Expect.equals("1", r"1");
-    Expect.equals("\$", r"$");
-    Expect.equals("\\", r"\");
-    Expect.equals("\\", r'\');
-    Expect.equals("\${12}", r"${12}");
-    Expect.equals("\\a\\b\\c\\d\\e\\f\\g\\h\\i\\j\\k\\l\\m",
-        r"\a\b\c\d\e\f\g\h\i\j\k\l\m");
-    Expect.equals("\\n\\o\\p\\q\\r\\s\\t\\u\\v\\w\\x\\y\\z",
-        r"\n\o\p\q\r\s\t\u\v\w\x\y\z");
-  }
-}
-
-main() {
-  RawStringTest.testMain();
-}
diff --git a/tests/language_2/string/runtime_test.dart b/tests/language_2/string/runtime_test.dart
deleted file mode 100644
index 561c2172d75..00000000000
--- a/tests/language_2/string/runtime_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Replace with shared test once interface issues clarified.
-
-import "package:expect/expect.dart";
-
-class StringTest {
-  static testMain() {
-    testCodePoints();
-    testNoSuchMethod();
-    testStringsJoin();
-    testCharCodes();
-  }
-
-  static testCodePoints() {
-    String str = "string";
-    for (int i = 0; i < str.length; i++) {
-      Expect.equals(true, str[i] is String);
-      Expect.equals(true, str.codeUnitAt(i) is int);
-    }
-  }
-
-  static testStringsJoin() {
-    List<String> a = new List<String>.filled(2, null);
-    a[0] = "Hello";
-    a[1] = "World";
-    String s = a.join("*^*");
-    Expect.equals("Hello*^*World", s);
-  }
-
-  static testNoSuchMethod() {
-    String a = "Hello";
-
-  }
-
-  static testCharCodes() {
-    String s = new String.fromCharCodes(const [0x41, 0xC1, 0x424]);
-    Expect.equals("A", s[0]);
-    Expect.equals(0x424, s.codeUnitAt(2));
-  }
-}
-
-main() {
-  StringTest.testMain();
-}
diff --git a/tests/language_2/string/split_test.dart b/tests/language_2/string/split_test.dart
deleted file mode 100644
index 6d855d069ab..00000000000
--- a/tests/language_2/string/split_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Issue 24043.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class EvilMatch implements Match {
-  int get start => 100000000;
-  int get end => 3;
-  bool noSuchMethod(Invocation im) => false; // To appease dartanalyzer.
-}
-
-class EvilIterator implements Iterator<Match> {
-  bool moveNext() => true;
-  EvilMatch get current => new EvilMatch();
-}
-
-class EvilIterable extends Iterable<Match> {
-  get iterator => new EvilIterator();
-}
-
-class EvilPattern implements Pattern {
-  allMatches(String s, [int start = 0]) => new EvilIterable();
-  bool noSuchMethod(Invocation im) => false; // To appease dartanalyzer.
-}
-
-void main() {
-  Expect.throwsRangeError(() => "foo".split(new EvilPattern())[0].length);
-}
diff --git a/tests/language_2/string/string_test.dart b/tests/language_2/string/string_test.dart
deleted file mode 100644
index ec67d921143..00000000000
--- a/tests/language_2/string/string_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Replace with shared test once interface issues clarified.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class StringTest {
-  static testMain() {
-    testCodePoints();
-    testNoSuchMethod();
-    testStringsJoin();
-    testCharCodes();
-  }
-
-  static testCodePoints() {
-    String str = "string";
-    for (int i = 0; i < str.length; i++) {
-      Expect.equals(true, str[i] is String);
-      Expect.equals(true, str.codeUnitAt(i) is int);
-    }
-  }
-
-  static testStringsJoin() {
-    List<String> a = new List<String>.filled(2, null);
-    a[0] = "Hello";
-    a[1] = "World";
-    String s = a.join("*^*");
-    Expect.equals("Hello*^*World", s);
-  }
-
-  static testNoSuchMethod() {
-    String a = "Hello";
-    a[1] = 12;
-//   ^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-// [cfe] The operator '[]=' isn't defined for the class 'String'.
-  }
-
-  static testCharCodes() {
-    String s = new String.fromCharCodes(const [0x41, 0xC1, 0x424]);
-    Expect.equals("A", s[0]);
-    Expect.equals(0x424, s.codeUnitAt(2));
-  }
-}
-
-main() {
-  StringTest.testMain();
-}
diff --git a/tests/language_2/string/substring_runtime_test.dart b/tests/language_2/string/substring_runtime_test.dart
deleted file mode 100644
index 96591b15706..00000000000
--- a/tests/language_2/string/substring_runtime_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart version of two-argument Ackermann-Peter function.
-
-import "package:expect/expect.dart";
-
-main() {
-  try {
-
-
-  } on TypeError catch (e) {
-    // OK.
-  } on ArgumentError catch (e) {
-    // OK.
-  }
-}
diff --git a/tests/language_2/string/substring_test.dart b/tests/language_2/string/substring_test.dart
deleted file mode 100644
index 6a64de4a985..00000000000
--- a/tests/language_2/string/substring_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart version of two-argument Ackermann-Peter function.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  try {
-    print("abcdef".substring(1.5, 3.5));
-    //                       ^^^
-    // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-    // [cfe] The argument type 'double' can't be assigned to the parameter type 'int'.
-    //                            ^^^
-    // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-    // [cfe] The argument type 'double' can't be assigned to the parameter type 'int'.
-    Expect.fail("Should have thrown an exception");
-  } on TypeError catch (e) {
-    // OK.
-  } on ArgumentError catch (e) {
-    // OK.
-  }
-}
diff --git a/tests/language_2/string/supertype_checked_test.dart b/tests/language_2/string/supertype_checked_test.dart
deleted file mode 100644
index ef857a5ed6a..00000000000
--- a/tests/language_2/string/supertype_checked_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// This tests a bug in dart2js which caused the compiler to emit bad
-// type assertions for supertypes of String.
-
-class A implements Comparable<A> {
-  int value;
-
-  A(this.value);
-
-  int compareTo(Object other) {
-    A o = promote(other);
-    return value.compareTo(o.value);
-  }
-
-  A promote(var other) {
-    return other;
-  }
-}
-
-main() {
-  var a = new A(1);
-  var b = new A(2);
-  Expect.equals(-1, a.compareTo(b));
-}
diff --git a/tests/language_2/string/unicode1_test.dart b/tests/language_2/string/unicode1_test.dart
deleted file mode 100644
index 78443308648..00000000000
--- a/tests/language_2/string/unicode1_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// (backslash) uXXXX must have exactly 4 hex digits.
-
-main() {
-  var str = "Foo\u00";
-  //            ^^^^
-  // [analyzer] SYNTACTIC_ERROR.INVALID_UNICODE_ESCAPE_U_NO_BRACKET
-  // [cfe] An escape sequence starting with '\u' must be followed by 4 hexadecimal digits.
-  str = "Foo\uDEEMBar";
-  //        ^^^^^
-  // [analyzer] SYNTACTIC_ERROR.INVALID_UNICODE_ESCAPE_U_NO_BRACKET
-  // [cfe] An escape sequence starting with '\u' must be followed by 4 hexadecimal digits.
-}
diff --git a/tests/language_2/string/unicode2_test.dart b/tests/language_2/string/unicode2_test.dart
deleted file mode 100644
index 6c2cb90e099..00000000000
--- a/tests/language_2/string/unicode2_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// \u{X*} should have 1-6 hex digits.
-
-main() {
-  var str = "Foo\u{}Bar";
-  //            ^^^^
-  // [analyzer] SYNTACTIC_ERROR.INVALID_UNICODE_ESCAPE_U_BRACKET
-  // [cfe] An escape sequence starting with '\u{' must be followed by 1 to 6 hexadecimal digits followed by a '}'.
-  str = "Foo\u{000000000}Bar";
-  //        ^^^^^^^^^
-  // [analyzer] SYNTACTIC_ERROR.INVALID_UNICODE_ESCAPE_U_BRACKET
-  // [cfe] An escape sequence starting with '\u{' must be followed by 1 to 6 hexadecimal digits followed by a '}'.
-  str = "Foo\u{DEAF!}Bar";
-  //        ^^^^^^^^
-  // [analyzer] SYNTACTIC_ERROR.INVALID_UNICODE_ESCAPE_U_BRACKET
-  // [cfe] An escape sequence starting with '\u{' must be followed by 1 to 6 hexadecimal digits followed by a '}'.
-}
diff --git a/tests/language_2/string/unicode3_test.dart b/tests/language_2/string/unicode3_test.dart
deleted file mode 100644
index 8431e4e4f14..00000000000
--- a/tests/language_2/string/unicode3_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Backslash xXX must have exactly 2 hex digits.
-
-main() {
-  var str = "Foo\x0";
-  //            ^^^
-  // [analyzer] SYNTACTIC_ERROR.INVALID_HEX_ESCAPE
-  // [cfe] An escape sequence starting with '\x' must be followed by 2 hexadecimal digits.
-  str = "Foo\xF Bar";
-  //        ^^^
-  // [analyzer] SYNTACTIC_ERROR.INVALID_HEX_ESCAPE
-  // [cfe] An escape sequence starting with '\x' must be followed by 2 hexadecimal digits.
-}
diff --git a/tests/language_2/string/unicode4_test.dart b/tests/language_2/string/unicode4_test.dart
deleted file mode 100644
index 701ac3e324d..00000000000
--- a/tests/language_2/string/unicode4_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Unicode escapes must refer to valid Unicode points and not surrogate
-/// characters.
-
-main() {
-  var str = "Foo\u{FFFFFF}";
-  //            ^^^^^^^^^
-  // [analyzer] SYNTACTIC_ERROR.INVALID_CODE_POINT
-  // [cfe] The escape sequence starting with '\u' isn't a valid code point.
-  str = "Foo\uD800";
-  str = "Foo\uDC00";
-}
diff --git a/tests/language_2/string/unicode_bom_middle_test.dart b/tests/language_2/string/unicode_bom_middle_test.dart
deleted file mode 100644
index ed98b3b6a19..00000000000
--- a/tests/language_2/string/unicode_bom_middle_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-int inscrutable(int x) => x == 0 ? 0 : x | inscrutable(x & (x - 1));
-
-foo(x) {
-  if (inscrutable(1999) == 1999) return x;
-  return 499;
-}
-
-main() {
-  Expect.equals(3, "xx".length); // BOM character between the xs.
-  Expect.equals(3, foo("xx").length); // BOM character between the xs.
-}
diff --git a/tests/language_2/string/unicode_bom_test.dart b/tests/language_2/string/unicode_bom_test.dart
deleted file mode 100644
index b81c494fa3f..00000000000
--- a/tests/language_2/string/unicode_bom_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This file is saved with a BOM character (as first character). This character
-// should be ignored.
-// Tests that files with a BOM character are correctly handled.
-
-main() {
-  /* do nothing. */
-}
diff --git a/tests/language_2/string/unicode_hash_test.dart b/tests/language_2/string/unicode_hash_test.dart
deleted file mode 100644
index 78ae63ed2cf..00000000000
--- a/tests/language_2/string/unicode_hash_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.equals("\u{10412}", "𐐒"); // Second string is literal U+10412.
-  Expect.equals("\u{10412}".hashCode, "𐐒".hashCode);
-}
diff --git a/tests/language_2/subtyping_dynamic/README.md b/tests/language_2/subtyping_dynamic/README.md
deleted file mode 100644
index 24c6b0da0cd..00000000000
--- a/tests/language_2/subtyping_dynamic/README.md
+++ /dev/null
@@ -1,4 +0,0 @@
-# Feature tests for the dynamic semantics of subtyping
-
-This directory was created in order to hold tests pertaining to the
-dynamic behavior of Dart programs where it involves subtyping.
diff --git a/tests/language_2/subtyping_static/README.md b/tests/language_2/subtyping_static/README.md
deleted file mode 100644
index c634811db9a..00000000000
--- a/tests/language_2/subtyping_static/README.md
+++ /dev/null
@@ -1,4 +0,0 @@
-# Feature tests for static analysis involving subtyping
-
-This directory was created in order to hold tests pertaining to the
-static analysis of Dart where it involves subtyping.
diff --git a/tests/language_2/subtyping_static/future_or_subtype_test.dart b/tests/language_2/subtyping_static/future_or_subtype_test.dart
deleted file mode 100644
index 611b8b01847..00000000000
--- a/tests/language_2/subtyping_static/future_or_subtype_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import 'package:expect/expect.dart';
-
-class A implements Future<Future<A>> {
-  @override
-  noSuchMethod(Invocation _) {}
-}
-
-void main() {
-  Expect.notSubtype<A, Future<A>>();
-  Expect.subtype<FutureOr<A>, FutureOr<Future<A>>>();
-}
diff --git a/tests/language_2/super/abstract_method_test.dart b/tests/language_2/super/abstract_method_test.dart
deleted file mode 100644
index 69fbc56b119..00000000000
--- a/tests/language_2/super/abstract_method_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that a method overridden by an abstract method is called at
-// runtime.
-
-import "package:expect/expect.dart";
-
-class Base {
-  foo() => 42;
-}
-
-abstract class A extends Base {
-  foo();
-}
-
-class B extends A {
-  testSuperCall() => super.foo();
-  foo() =>
-      42; // required since if is removed, then a warning is introduced on 'B' above
-}
-
-main() {
-  Expect.equals(42, new B().foo());
-  Expect.equals(42, new B().testSuperCall());
-}
diff --git a/tests/language_2/super/additional_interface_adds_optional_args_supercall_test.dart b/tests/language_2/super/additional_interface_adds_optional_args_supercall_test.dart
deleted file mode 100644
index 00bb09c960b..00000000000
--- a/tests/language_2/super/additional_interface_adds_optional_args_supercall_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  void foo() {}
-}
-
-abstract class I {
-  void foo([x]);
-}
-
-abstract class B extends A implements I {
-  // If this class were concrete, there would be a problem, since `new
-  // B().foo(42)` would be statically allowed, but would lead to invalid
-  // arguments being passed to A.foo.  But since the class is abstract, there is
-  // no problem.
-}
-
-class C extends B {
-  void foo([x]) {
-    // But it is a problem to try to pass `x` along to super, since the super
-    // method is A.foo.
-    super.foo(x);
-    //       ^
-    // [cfe] Too many positional arguments: 0 allowed, but 1 found.
-    //        ^
-    // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS
-  }
-}
-
-void f(B b) {
-  b.foo(42);
-}
-
-main() {
-  f(new C());
-}
diff --git a/tests/language_2/super/all_named_constructor_test.dart b/tests/language_2/super/all_named_constructor_test.dart
deleted file mode 100644
index 5040d7c127f..00000000000
--- a/tests/language_2/super/all_named_constructor_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing implicit invocation of super constructor with all
-// named parameters.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var res = 0;
-
-class A {
-  A([v = 1]) {
-    res += v;
-  }
-}
-
-class B extends A {
-  B([v = 2]) {
-    res += v;
-  }
-}
-
-main() {
-  new B();
-  Expect.equals(3, res);
-}
diff --git a/tests/language_2/super/assign_runtime_test.dart b/tests/language_2/super/assign_runtime_test.dart
deleted file mode 100644
index 1cc6f77e6b9..00000000000
--- a/tests/language_2/super/assign_runtime_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class A {
-  int x;
-}
-
-class C extends A {
-  void setX(int value) {
-    super.x = value;
-  }
-}
-
-main() {
-  A a = new C();
-  a.x = 37;
-
-}
diff --git a/tests/language_2/super/assign_test.dart b/tests/language_2/super/assign_test.dart
deleted file mode 100644
index 9143fbd70a8..00000000000
--- a/tests/language_2/super/assign_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  int x;
-}
-
-class C extends A {
-  void setX(int value) {
-    super.x = value;
-  }
-}
-
-main() {
-  A a = new C();
-  a.x = 37;
-  a.setX(42);
-  //^^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_METHOD
-  // [cfe] The method 'setX' isn't defined for the class 'A'.
-}
diff --git a/tests/language_2/super/bound_closure_test.dart b/tests/language_2/super/bound_closure_test.dart
deleted file mode 100644
index 439a7e8449a..00000000000
--- a/tests/language_2/super/bound_closure_test.dart
+++ /dev/null
@@ -1,151 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  bar([var optional = 1]) => 498 + optional;
-  bar2({namedOptional: 2}) => 40 + namedOptional;
-  bar3(x, [var optional = 3]) => x + 498 + optional;
-  bar4(x, {namedOptional: 4}) => 422 + x + namedOptional;
-
-  // Gee is the same as bar, but we make sure that gee is used. Potentially
-  // this yields different code if the redirecting stub exists.
-  gee([var optional = 1]) => 498 + optional;
-  gee2({namedOptional: 2}) => 40 + namedOptional;
-  gee3(x, [var optional = 3]) => x + 498 + optional;
-  gee4(x, {namedOptional: 4}) => 422 + x + namedOptional;
-
-  // Use identifiers that could be intercepted.
-  add([var optional = 33]) => 1234 + optional;
-  trim({namedOptional: 22}) => 1313 + namedOptional;
-  sublist(x, [optional = 44]) => 4321 + optional + x;
-  splitMapJoin(x, {onMatch: 55, onNonMatch: 66}) =>
-      111 + x + onMatch + onNonMatch;
-
-  // Other interceptable identifiers, but all of them are used.
-  shuffle([var optional = 121]) => 12342 + optional;
-  toList({growable: 2233}) => 13131 + growable;
-  lastIndexOf(x, [optional = 424]) => 14321 + optional + x;
-  lastWhere(x, {orElse: 555}) => x + 1213 + 555;
-}
-
-class B extends A {
-  // The closure `super.bar` is invoked without the optional argument.
-  // Dart2js must not generate a `bar$0 => bar$1(null)` closure, since that
-  // would redirect to B's `bar$1`. Instead it must enforce that `bar$0` in
-  // `A` redirects to A's bar$1.
-  foo() => confuse(super.bar)();
-  foo2() => confuse(super.bar)(2);
-  foo3() => confuse(super.bar2)();
-  foo4() => confuse(super.bar2)(namedOptional: 77);
-  foo5() => confuse(super.bar3)(-3);
-  foo6() => confuse(super.bar3)(-11, -19);
-  foo7() => confuse(super.bar4)(0);
-  foo8() => confuse(super.bar4)(3, namedOptional: 77);
-
-  fooGee() => confuse(super.gee)();
-  fooGee2() => confuse(super.gee)(2);
-  fooGee3() => confuse(super.gee2)();
-  fooGee4() => confuse(super.gee2)(namedOptional: 77);
-  fooGee5() => confuse(super.gee3)(-3);
-  fooGee6() => confuse(super.gee3)(-11, -19);
-  fooGee7() => confuse(super.gee4)(0);
-  fooGee8() => confuse(super.gee4)(3, namedOptional: 77);
-
-  fooIntercept() => confuse(super.add)();
-  fooIntercept2() => confuse(super.add)(2);
-  fooIntercept3() => confuse(super.trim)();
-  fooIntercept4() => confuse(super.trim)(namedOptional: 77);
-  fooIntercept5() => confuse(super.sublist)(-3);
-  fooIntercept6() => confuse(super.sublist)(-11, -19);
-  fooIntercept7() => confuse(super.splitMapJoin)(0);
-  fooIntercept8() => confuse(super.splitMapJoin)(3, onMatch: 77, onNonMatch: 8);
-
-  fooIntercept21() => confuse(super.shuffle)();
-  fooIntercept22() => confuse(super.shuffle)(2);
-  fooIntercept23() => confuse(super.toList)();
-  fooIntercept24() => confuse(super.toList)(growable: 77);
-  fooIntercept25() => confuse(super.lastIndexOf)(-3);
-  fooIntercept26() => confuse(super.lastIndexOf)(-11, -19);
-  fooIntercept27() => confuse(super.lastWhere)(0);
-  fooIntercept28() => confuse(super.lastWhere)(3, orElse: 77);
-
-  // Warning: overrides should not change default parameter values.
-  bar([var optional]) => -1; //       //# 01: ok
-  bar2({namedOptional}) => -1; //   //# 01: continued
-  bar3(x, [var optional]) => -1; //   //# 01: continued
-  bar4(x, {namedOptional}) => -1; //# 01: continued
-
-  gee([var optional]) => -1; //       //# 01: continued
-  gee2({namedOptional}) => -1; //   //# 01: continued
-  gee3(x, [var optional]) => -1; //   //# 01: continued
-  gee4(x, {namedOptional}) => -1; //# 01: continued
-
-  add([var optional = 33]) => -1;
-  trim({namedOptional: 22}) => -1;
-  sublist(x, [optional = 44]) => -1;
-  splitMapJoin(x, {onMatch: 55, onNonMatch: 66}) => -1;
-
-  shuffle([var optional = 121]) => -1;
-  toList({growable: 2233}) => -1;
-  lastIndexOf(x, [optional = 424]) => -1;
-  lastWhere(x, {orElse: 555}) => -1;
-}
-
-confuse(x) {
-  if (new DateTime.now().millisecondsSinceEpoch == 42) return confuse(x - 1);
-  return x;
-}
-
-main() {
-  var list = [new A(), new B(), [], "foo"];
-  var a = list[confuse(0)];
-  dynamic b = list[confuse(1)];
-  var ignored = list[confuse(2)];
-  var ignored2 = list[confuse(3)];
-
-  var t = b.gee() + b.gee2() + b.gee3(9) + b.gee4(19);
-  Expect.equals(-4, t); //# 01: continued
-  t = b.shuffle() + b.toList() + b.lastIndexOf(1) + b.lastWhere(2);
-  Expect.equals(-4, t);
-
-  Expect.equals(499, b.foo()); // //# 01: continued
-  Expect.equals(500, b.foo2()); //# 01: continued
-  Expect.equals(42, b.foo3()); // //# 01: continued
-  Expect.equals(117, b.foo4()); //# 01: continued
-  Expect.equals(498, b.foo5()); //# 01: continued
-  Expect.equals(468, b.foo6()); //# 01: continued
-  Expect.equals(426, b.foo7()); //# 01: continued
-  Expect.equals(502, b.foo8()); //# 01: continued
-
-  Expect.equals(499, b.fooGee()); // //# 01: continued
-  Expect.equals(500, b.fooGee2()); //# 01: continued
-  Expect.equals(42, b.fooGee3()); // //# 01: continued
-  Expect.equals(117, b.fooGee4()); //# 01: continued
-  Expect.equals(498, b.fooGee5()); //# 01: continued
-  Expect.equals(468, b.fooGee6()); //# 01: continued
-  Expect.equals(426, b.fooGee7()); //# 01: continued
-  Expect.equals(502, b.fooGee8()); //# 01: continued
-
-  Expect.equals(1267, b.fooIntercept());
-  Expect.equals(1236, b.fooIntercept2());
-  Expect.equals(1335, b.fooIntercept3());
-  Expect.equals(1390, b.fooIntercept4());
-  Expect.equals(4362, b.fooIntercept5());
-  Expect.equals(4291, b.fooIntercept6());
-  Expect.equals(232, b.fooIntercept7());
-  Expect.equals(199, b.fooIntercept8());
-
-  Expect.equals(12463, b.fooIntercept21());
-  Expect.equals(12344, b.fooIntercept22());
-  Expect.equals(15364, b.fooIntercept23());
-  Expect.equals(13208, b.fooIntercept24());
-  Expect.equals(14742, b.fooIntercept25());
-  Expect.equals(14291, b.fooIntercept26());
-  Expect.equals(1768, b.fooIntercept27());
-  Expect.equals(1771, b.fooIntercept28());
-}
diff --git a/tests/language_2/super/call2_test.dart b/tests/language_2/super/call2_test.dart
deleted file mode 100644
index 8153c6243b0..00000000000
--- a/tests/language_2/super/call2_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regresion test for bug discovered in frog handling super calls: the test case
-// mixes generics, super calls, and purposely doesn't allocate the base type.
-//
-// Also is a regression test for https://github.com/dart-lang/sdk/issues/31973
-
-import 'package:expect/expect.dart';
-
-class C<T> {
-  foo(T a) {}
-}
-
-class D<T> extends C<T> {
-  foo(T a) {
-    super.foo(a); // used to be resolved incorrectly and generate this.foo(a).
-  }
-}
-
-class A {
-  static int _value;
-  Function foo = (int x) => _value = x + 1;
-}
-
-class B extends A {
-  void m(int x) {
-    super.foo(x);
-  }
-}
-
-main() {
-  var d = new D();
-  d.foo(null);
-
-  var b = new B();
-  b.m(41);
-  Expect.equals(42, A._value);
-}
diff --git a/tests/language_2/super/call3_runtime_test.dart b/tests/language_2/super/call3_runtime_test.dart
deleted file mode 100644
index 0b63e6c9ed4..00000000000
--- a/tests/language_2/super/call3_runtime_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing implicit super calls with bad arguments or no default
-// constructor in super class.
-
-import "package:expect/expect.dart";
-
-class A {
-  A(
-
-      );
-  final foo = 499;
-}
-
-class B extends A {}
-
-class B2 extends A {
-  B2();
-  B2.named() : this.x = 499;
-  var x;
-}
-
-class C {
-  C
-
-  ();
-  final foo = 499;
-}
-
-class D extends C {}
-
-class D2 extends C {
-  D2();
-  D2.named() : this.x = 499;
-  var x;
-}
-
-main() {
-  Expect.equals(499, new B().foo);
-  Expect.equals(499, new B2().foo);
-  Expect.equals(499, new B2.named().foo);
-  Expect.equals(499, new D().foo);
-  Expect.equals(499, new D2().foo);
-  Expect.equals(499, new D2.named().foo);
-}
diff --git a/tests/language_2/super/call3_test.dart b/tests/language_2/super/call3_test.dart
deleted file mode 100644
index eab93d94f6f..00000000000
--- a/tests/language_2/super/call3_test.dart
+++ /dev/null
@@ -1,70 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing implicit super calls with bad arguments or no default
-// constructor in super class.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  A(
-    this.x
-//  ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INITIALIZING_FORMAL_FOR_NON_EXISTENT_FIELD
-//       ^
-// [cfe] 'x' isn't an instance field of this class.
-      );
-  final foo = 499;
-}
-
-class B extends A {}
-//    ^
-// [analyzer] COMPILE_TIME_ERROR.NO_DEFAULT_SUPER_CONSTRUCTOR
-// [cfe] The superclass, 'A', has no unnamed constructor that takes no arguments.
-
-class B2 extends A {
-  B2();
-//^^
-// [analyzer] COMPILE_TIME_ERROR.NO_DEFAULT_SUPER_CONSTRUCTOR
-// [cfe] The superclass, 'A', has no unnamed constructor that takes no arguments.
-  B2.named() : this.x = 499;
-//^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NO_DEFAULT_SUPER_CONSTRUCTOR
-// [cfe] The superclass, 'A', has no unnamed constructor that takes no arguments.
-  var x;
-}
-
-class C {
-  C
-  .named
-  ();
-  final foo = 499;
-}
-
-class D extends C {}
-//    ^
-// [analyzer] COMPILE_TIME_ERROR.NO_DEFAULT_SUPER_CONSTRUCTOR
-// [cfe] The superclass, 'C', has no unnamed constructor that takes no arguments.
-
-class D2 extends C {
-  D2();
-//^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_CONSTRUCTOR_IN_INITIALIZER
-// [cfe] The superclass, 'C', has no unnamed constructor that takes no arguments.
-  D2.named() : this.x = 499;
-//^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_CONSTRUCTOR_IN_INITIALIZER
-// [cfe] The superclass, 'C', has no unnamed constructor that takes no arguments.
-  var x;
-}
-
-main() {
-  Expect.equals(499, new B().foo);
-  Expect.equals(499, new B2().foo);
-  Expect.equals(499, new B2.named().foo);
-  Expect.equals(499, new D().foo);
-  Expect.equals(499, new D2().foo);
-  Expect.equals(499, new D2.named().foo);
-}
diff --git a/tests/language_2/super/call4_test.dart b/tests/language_2/super/call4_test.dart
deleted file mode 100644
index c0712366a4c..00000000000
--- a/tests/language_2/super/call4_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C {
-  bool foo();
-  bool bar(int a);
-  bool baz({int b});
-  bool boz(int a, {int c});
-
-  bool noSuchMethod(Invocation im) => true;
-}
-
-class D extends C {
-  bool noSuchMethod(Invocation im) => false;
-
-  // `super.foo()` et al. will statically use [C]'s [noSuchMethod] forwarder,
-  // but the forwarder will (virtually) call [D]'s [noSuchMethod] at runtime.
-
-  test1() {
-    return super.foo();
-  }
-
-  test2() {
-    return super.bar(1);
-  }
-
-  test3() {
-    return super.baz(b: 2);
-  }
-
-  test4() {
-    return super.boz(1, c: 2);
-  }
-}
-
-main() {
-  var d = new D();
-  Expect.isFalse(d.test1());
-  Expect.isFalse(d.test2());
-  Expect.isFalse(d.test3());
-  Expect.isFalse(d.test4());
-}
diff --git a/tests/language_2/super/call_test.dart b/tests/language_2/super/call_test.dart
deleted file mode 100644
index bb2accafe55..00000000000
--- a/tests/language_2/super/call_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing super calls
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  A() : field = 0 {}
-  int field;
-  incrField() {
-    field++;
-  }
-
-  timesX(v) {
-    return v * 2;
-  }
-}
-
-class B extends A {
-  incrField() {
-    field++;
-    super.incrField();
-  }
-
-  timesX(v) {
-    return super.timesX(v) * 3;
-  }
-
-  B() : super() {}
-}
-
-class SuperCallTest {
-  static testMain() {
-    var b = new B();
-    b.incrField();
-    Expect.equals(2, b.field);
-    Expect.equals(12, b.timesX(2));
-  }
-}
-
-main() {
-  SuperCallTest.testMain();
-}
diff --git a/tests/language_2/super/closure_test.dart b/tests/language_2/super/closure_test.dart
deleted file mode 100644
index f58daa1de3c..00000000000
--- a/tests/language_2/super/closure_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Dart test program for testing access to super from closure.
-
-class Super {
-  var superX = "super";
-  get x => superX;
-}
-
-class Sub extends Super {
-  var subX = "sub";
-  get x => subX;
-
-  buildClosures() => [() => x, () => this.x, () => super.x];
-}
-
-main() {
-  var closures = new Sub().buildClosures();
-  Expect.equals(3, closures.length);
-  Expect.equals("sub", closures[0]());
-  Expect.equals("sub", closures[1]());
-  Expect.equals("super", closures[2]());
-}
diff --git a/tests/language_2/super/conditional_operator_runtime_test.dart b/tests/language_2/super/conditional_operator_runtime_test.dart
deleted file mode 100644
index f7fb940fceb..00000000000
--- a/tests/language_2/super/conditional_operator_runtime_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify that the ?. operator cannot be used with "super".
-
-class B {
-  B();
-  B.namedConstructor();
-  var field = 1;
-  method() => 1;
-}
-
-class C extends B {
-  C()
-
-  ;
-
-  test() {
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-  }
-}
-
-main() {
-  new C().test();
-}
diff --git a/tests/language_2/super/conditional_operator_test.dart b/tests/language_2/super/conditional_operator_test.dart
deleted file mode 100644
index de79c9296ac..00000000000
--- a/tests/language_2/super/conditional_operator_test.dart
+++ /dev/null
@@ -1,112 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that the ?. operator cannot be used with "super".
-
-class B {
-  B();
-  B.namedConstructor();
-  var field = 1;
-  method() => 1;
-}
-
-class C extends B {
-  C()
-    : super?.namedConstructor()
-    //     ^^
-    // [analyzer] SYNTACTIC_ERROR.INVALID_OPERATOR_QUESTIONMARK_PERIOD_FOR_SUPER
-    // [cfe] Cannot use '?.' here.
-    //     ^
-    // [cfe] The operator '?.' cannot be used with 'super' because 'super' cannot be null.
-  ;
-
-  test() {
-    super?.field = 1;
-    //   ^^
-    // [analyzer] SYNTACTIC_ERROR.INVALID_OPERATOR_QUESTIONMARK_PERIOD_FOR_SUPER
-    // [cfe] The operator '?.' cannot be used with 'super' because 'super' cannot be null.
-    super?.field += 1;
-    //   ^^
-    // [analyzer] SYNTACTIC_ERROR.INVALID_OPERATOR_QUESTIONMARK_PERIOD_FOR_SUPER
-    // [cfe] The operator '?.' cannot be used with 'super' because 'super' cannot be null.
-    super?.field ??= 1;
-    //   ^^
-    // [analyzer] SYNTACTIC_ERROR.INVALID_OPERATOR_QUESTIONMARK_PERIOD_FOR_SUPER
-    // [cfe] The operator '?.' cannot be used with 'super' because 'super' cannot be null.
-    super?.field;
-    //   ^^
-    // [analyzer] SYNTACTIC_ERROR.INVALID_OPERATOR_QUESTIONMARK_PERIOD_FOR_SUPER
-    // [cfe] The operator '?.' cannot be used with 'super' because 'super' cannot be null.
-    1 * super?.field;
-    //       ^^
-    // [analyzer] SYNTACTIC_ERROR.INVALID_OPERATOR_QUESTIONMARK_PERIOD_FOR_SUPER
-    // [cfe] The operator '?.' cannot be used with 'super' because 'super' cannot be null.
-    -super?.field;
-    //    ^^
-    // [analyzer] SYNTACTIC_ERROR.INVALID_OPERATOR_QUESTIONMARK_PERIOD_FOR_SUPER
-    // [cfe] The operator '?.' cannot be used with 'super' because 'super' cannot be null.
-    ~super?.field;
-    //    ^^
-    // [analyzer] SYNTACTIC_ERROR.INVALID_OPERATOR_QUESTIONMARK_PERIOD_FOR_SUPER
-    // [cfe] The operator '?.' cannot be used with 'super' because 'super' cannot be null.
-    !super?.field;
-//   ^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_BOOL_NEGATION_EXPRESSION
-//        ^^
-// [analyzer] SYNTACTIC_ERROR.INVALID_OPERATOR_QUESTIONMARK_PERIOD_FOR_SUPER
-// [cfe] The operator '?.' cannot be used with 'super' because 'super' cannot be null.
-//          ^
-// [cfe] A value of type 'int' can't be assigned to a variable of type 'bool'.
-    --super?.field;
-    //     ^^
-    // [analyzer] SYNTACTIC_ERROR.INVALID_OPERATOR_QUESTIONMARK_PERIOD_FOR_SUPER
-    // [cfe] The operator '?.' cannot be used with 'super' because 'super' cannot be null.
-    ++super?.field;
-    //     ^^
-    // [analyzer] SYNTACTIC_ERROR.INVALID_OPERATOR_QUESTIONMARK_PERIOD_FOR_SUPER
-    // [cfe] The operator '?.' cannot be used with 'super' because 'super' cannot be null.
-    super?.method();
-    //   ^^
-    // [analyzer] SYNTACTIC_ERROR.INVALID_OPERATOR_QUESTIONMARK_PERIOD_FOR_SUPER
-    // [cfe] The operator '?.' cannot be used with 'super' because 'super' cannot be null.
-    1 * super?.method();
-    //       ^^
-    // [analyzer] SYNTACTIC_ERROR.INVALID_OPERATOR_QUESTIONMARK_PERIOD_FOR_SUPER
-    // [cfe] The operator '?.' cannot be used with 'super' because 'super' cannot be null.
-    -super?.method();
-    //    ^^
-    // [analyzer] SYNTACTIC_ERROR.INVALID_OPERATOR_QUESTIONMARK_PERIOD_FOR_SUPER
-    // [cfe] The operator '?.' cannot be used with 'super' because 'super' cannot be null.
-    ~super?.method();
-    //    ^^
-    // [analyzer] SYNTACTIC_ERROR.INVALID_OPERATOR_QUESTIONMARK_PERIOD_FOR_SUPER
-    // [cfe] The operator '?.' cannot be used with 'super' because 'super' cannot be null.
-    !super?.method();
-    //    ^^
-    // [analyzer] SYNTACTIC_ERROR.INVALID_OPERATOR_QUESTIONMARK_PERIOD_FOR_SUPER
-    // [cfe] The operator '?.' cannot be used with 'super' because 'super' cannot be null.
-    --super?.method();
-    //     ^^
-    // [analyzer] SYNTACTIC_ERROR.INVALID_OPERATOR_QUESTIONMARK_PERIOD_FOR_SUPER
-    // [cfe] The operator '?.' cannot be used with 'super' because 'super' cannot be null.
-    //       ^
-    // [cfe] Can't assign to this.
-    //              ^
-    // [analyzer] SYNTACTIC_ERROR.MISSING_ASSIGNABLE_SELECTOR
-    ++super?.method();
-    //     ^^
-    // [analyzer] SYNTACTIC_ERROR.INVALID_OPERATOR_QUESTIONMARK_PERIOD_FOR_SUPER
-    // [cfe] The operator '?.' cannot be used with 'super' because 'super' cannot be null.
-    //       ^
-    // [cfe] Can't assign to this.
-    //              ^
-    // [analyzer] SYNTACTIC_ERROR.MISSING_ASSIGNABLE_SELECTOR
-  }
-}
-
-main() {
-  new C().test();
-}
diff --git a/tests/language_2/super/field_2_test.dart b/tests/language_2/super/field_2_test.dart
deleted file mode 100644
index 086a4f50fa9..00000000000
--- a/tests/language_2/super/field_2_test.dart
+++ /dev/null
@@ -1,87 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  var foo;
-  A(this.foo);
-
-  B_Sfoo() => 'A.B_Sfoo()';
-}
-
-class B extends A {
-  B(x) : super(x);
-
-  B_Sfoo() => super.foo;
-  BC_Sfoo() => super.foo;
-  BCD_Sfoo() => super.foo;
-}
-
-class C extends B {
-  var foo;
-  C(x, this.foo) : super(x);
-
-  BC_Sfoo() => super.foo;
-  BCD_Sfoo() => super.foo;
-}
-
-class D extends C {
-  D(x, y) : super(x, y);
-
-  BCD_Sfoo() => super.foo;
-}
-
-var inscrutable;
-
-main() {
-  inscrutable = (x) => x;
-
-  var b = new B('Ba');
-  var c = new C('Ca', 'Cc');
-  var d = new D('Da', 'Dc');
-
-  // Check access via plain getter.
-  var b_bc = inscrutable(true) ? b : c; // B, but compiler thinks can also be C
-  var c_bc = inscrutable(true) ? c : b; // C, but compiler thinks can also be B
-
-  Expect.equals('Ba', b.foo);
-  Expect.equals('Cc', c.foo);
-  Expect.equals('Dc', d.foo);
-  Expect.equals('Ba', b_bc.foo);
-  Expect.equals('Cc', c_bc.foo);
-
-  Expect.equals('Ba', inscrutable(b).foo);
-  Expect.equals('Cc', inscrutable(c).foo);
-  Expect.equals('Dc', inscrutable(d).foo);
-  Expect.equals('Ba', inscrutable(b_bc).foo);
-  Expect.equals('Cc', inscrutable(c_bc).foo);
-
-  // Check access via super.foo in various contexts
-  Expect.equals('Ba', b.B_Sfoo());
-  Expect.equals('Ca', c.B_Sfoo());
-  Expect.equals('Da', d.B_Sfoo());
-
-  Expect.equals('Ba', b.BC_Sfoo());
-  Expect.equals('Ca', c.BC_Sfoo());
-  Expect.equals('Da', d.BC_Sfoo());
-
-  Expect.equals('Ba', b.BCD_Sfoo());
-  Expect.equals('Ca', c.BCD_Sfoo());
-  Expect.equals('Dc', d.BCD_Sfoo());
-
-  Expect.equals('Ba', inscrutable(b).B_Sfoo());
-  Expect.equals('Ca', inscrutable(c).B_Sfoo());
-  Expect.equals('Da', inscrutable(d).B_Sfoo());
-
-  Expect.equals('Ba', inscrutable(b).BC_Sfoo());
-  Expect.equals('Ca', inscrutable(c).BC_Sfoo());
-  Expect.equals('Da', inscrutable(d).BC_Sfoo());
-
-  Expect.equals('Ba', inscrutable(b).BCD_Sfoo());
-  Expect.equals('Ca', inscrutable(c).BCD_Sfoo());
-  Expect.equals('Dc', inscrutable(d).BCD_Sfoo());
-}
diff --git a/tests/language_2/super/field_access_test.dart b/tests/language_2/super/field_access_test.dart
deleted file mode 100644
index d5fcbdfe866..00000000000
--- a/tests/language_2/super/field_access_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  int foo;
-  A(this.foo);
-
-  raw$foo() => foo;
-  this$foo() => this.foo;
-}
-
-class B extends A {
-  int foo;
-  B.b1(x, this.foo) : super(x);
-  B.b2(x, y)
-      : this.foo = y,
-        super(x);
-  B.b3(x, y)
-      : this.foo = y,
-        super(x);
-
-  super$foo() => super.foo;
-  sum() => foo + super.foo;
-}
-
-test(b) {
-  Expect.equals(10, b.foo);
-  Expect.equals(10, b.raw$foo());
-  Expect.equals(10, b.this$foo());
-  Expect.equals(100, b.super$foo());
-  Expect.equals(110, b.sum());
-}
-
-main() {
-  test(new B.b1(100, 10));
-  test(new B.b2(100, 10));
-  test(new B.b3(100, 10));
-}
diff --git a/tests/language_2/super/field_test.dart b/tests/language_2/super/field_test.dart
deleted file mode 100644
index 27544dcf7c4..00000000000
--- a/tests/language_2/super/field_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing super field access.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  A() {
-    city = "Bern";
-  }
-  String greeting() {
-    return "Gruezi";
-  }
-
-  String city;
-}
-
-class B extends A {
-  B() : super() {}
-  String greeting() {
-    return "Hola " + super.greeting();
-  }
-}
-
-class C extends B {
-  C() : super() {}
-  String greeting() {
-    return "Servus " + super.greeting();
-  }
-
-  String get city {
-    return "Basel " + super.city;
-  }
-}
-
-class SuperFieldTest {
-  static testMain() {
-    A a = new A();
-    B b = new B();
-    C c = new C();
-    Expect.equals("Gruezi", a.greeting());
-    Expect.equals("Hola Gruezi", b.greeting());
-    Expect.equals("Servus Hola Gruezi", c.greeting());
-
-    Expect.equals("Bern", a.city);
-    Expect.equals("Bern", b.city);
-    Expect.equals("Basel Bern", c.city);
-    c.city = "Zurich";
-    Expect.equals("Basel Zurich", c.city);
-  }
-}
-
-main() {
-  SuperFieldTest.testMain();
-}
diff --git a/tests/language_2/super/from_constructor_test.dart b/tests/language_2/super/from_constructor_test.dart
deleted file mode 100644
index 9de3a0684f1..00000000000
--- a/tests/language_2/super/from_constructor_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-final results = [];
-
-int invoke(int f()) => f();
-
-class Base {
-  var f;
-  var z;
-
-  m(x) => results.add(x);
-
-  int g() {
-    return 42;
-  }
-}
-
-class C extends Base {
-  final Iterable _iter;
-
-  C(this._iter) {
-    _iter.map((x) => super.m(x)).toList();
-    super.f = _iter;
-    z = invoke(super.g);
-  }
-
-  int g() {
-    return -1;
-  }
-}
-
-main() {
-  var c = new C([1, 2, 3]);
-  Expect.listEquals([1, 2, 3], results);
-  Expect.listEquals([1, 2, 3], c.f);
-  Expect.equals(42, c.z);
-}
diff --git a/tests/language_2/super/implicit_closure_test.dart b/tests/language_2/super/implicit_closure_test.dart
deleted file mode 100644
index 0e4268c5666..00000000000
--- a/tests/language_2/super/implicit_closure_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing invocation of implicit closures.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class BaseClass {
-  BaseClass(this._i) {}
-  int foo() {
-    return _i;
-  }
-
-  int _i;
-}
-
-class DerivedClass extends BaseClass {
-  DerivedClass(this._y, int j) : super(j) {}
-  int foo() {
-    return _y;
-  }
-
-  getSuper() {
-    return super.foo;
-  }
-
-  int _y;
-}
-
-class SuperImplicitClosureTest {
-  static void testMain() {
-    DerivedClass obj = new DerivedClass(20, 10);
-
-    var ib = obj.foo;
-    Expect.equals(obj._y, ib());
-
-    ib = obj.getSuper();
-    Expect.equals(obj._i, ib());
-  }
-}
-
-main() {
-  SuperImplicitClosureTest.testMain();
-}
diff --git a/tests/language_2/super/in_async1_test.dart b/tests/language_2/super/in_async1_test.dart
deleted file mode 100644
index 63b5200124a..00000000000
--- a/tests/language_2/super/in_async1_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import 'dart:async';
-
-class A {
-  Future<int> foo() async => 42;
-}
-
-class B extends A {
-  Future<int> foo() async {
-    var x = await super.foo();
-    return x + 1;
-  }
-}
-
-main() async {
-  Expect.equals(43, await new B().foo());
-}
diff --git a/tests/language_2/super/in_async2_test.dart b/tests/language_2/super/in_async2_test.dart
deleted file mode 100644
index adb3f41c468..00000000000
--- a/tests/language_2/super/in_async2_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import 'dart:async';
-
-class A {
-  Future<int> foo() async => 42;
-}
-
-class B extends A {
-  Future<int> foo() async {
-    var x = await super.foo();
-    var y = await super.foo();
-    return x + y;
-  }
-}
-
-main() async {
-  Expect.equals(84, await new B().foo());
-}
diff --git a/tests/language_2/super/in_async3_test.dart b/tests/language_2/super/in_async3_test.dart
deleted file mode 100644
index e6927caa48a..00000000000
--- a/tests/language_2/super/in_async3_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import 'dart:async';
-
-class A {
-  Future<T> foo<T>(T x) async => x;
-}
-
-class B extends A {
-  Future<int> bar() async {
-    var x = await super.foo(41);
-    return x + 1;
-  }
-}
-
-main() async {
-  Expect.equals(42, await new B().bar());
-}
diff --git a/tests/language_2/super/in_async4_test.dart b/tests/language_2/super/in_async4_test.dart
deleted file mode 100644
index a866b5493a8..00000000000
--- a/tests/language_2/super/in_async4_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import 'dart:async';
-
-class A {
-  Future<T> foo<T>({T x}) async => x;
-}
-
-class B extends A {
-  Future<int> bar() async {
-    var x = await super.foo(x: 41);
-    return x + 1;
-  }
-}
-
-main() async {
-  Expect.equals(42, await new B().bar());
-}
diff --git a/tests/language_2/super/in_async5_test.dart b/tests/language_2/super/in_async5_test.dart
deleted file mode 100644
index 344769ad163..00000000000
--- a/tests/language_2/super/in_async5_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import 'dart:async';
-
-class A {
-  Future<int> get foo async => 42;
-}
-
-class B extends A {
-  Future<int> bar() async {
-    var x = await super.foo;
-    return x + 1;
-  }
-}
-
-main() async {
-  Expect.equals(43, await new B().bar());
-}
diff --git a/tests/language_2/super/in_async6_test.dart b/tests/language_2/super/in_async6_test.dart
deleted file mode 100644
index a610ff75767..00000000000
--- a/tests/language_2/super/in_async6_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import 'dart:async';
-
-class A {
-  Future<int> foo(int x, int y, int z) async => x + y + z;
-}
-
-class B extends A {
-  Future<int> foo(int x, int y, int z) async {
-    var w = await super.foo(x, y, z);
-    return w + 1;
-  }
-}
-
-main() async {
-  Expect.equals(7, await new B().foo(1, 2, 3));
-}
diff --git a/tests/language_2/super/in_constructor_test.dart b/tests/language_2/super/in_constructor_test.dart
deleted file mode 100644
index a2c4b7846c8..00000000000
--- a/tests/language_2/super/in_constructor_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Foo {
-  bool myBoolean = false;
-
-  void set foo(bool b) {
-    print("Setting foo in Foo");
-    myBoolean = b;
-  }
-}
-
-class Baz extends Foo {
-  Baz() {
-    super.foo = true;
-    Expect.equals(true, super.myBoolean);
-  }
-}
-
-main() {
-  new Baz();
-}
diff --git a/tests/language_2/super/in_finally_test.dart b/tests/language_2/super/in_finally_test.dart
deleted file mode 100644
index cbeaa2b2ee4..00000000000
--- a/tests/language_2/super/in_finally_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  T foo<T>({T x}) => x;
-}
-
-class B extends A {
-  int bar() {
-    try {
-      throw 'bar';
-      return 1;
-    } finally {
-      var x = super.foo(x: 41);
-      return x + 1;
-    }
-  }
-}
-
-main() {
-  Expect.equals(42, new B().bar());
-}
diff --git a/tests/language_2/super/inferrer_test.dart b/tests/language_2/super/inferrer_test.dart
deleted file mode 100644
index 56c16b61846..00000000000
--- a/tests/language_2/super/inferrer_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that dart2js's backend type inference handles super calls.
-
-import "package:expect/expect.dart";
-
-class A {
-  foo(a) => a + 42;
-}
-
-class B extends A {
-  bar() {
-    super.foo(null);
-  }
-}
-
-var a = [new A()];
-
-main() {
-  analyzeFirst();
-  analyzeSecond();
-}
-
-analyzeFirst() {
-  Expect.equals(84, a[0].foo(42));
-}
-
-analyzeSecond() {
-  Expect.throwsNoSuchMethodError(() => new B().bar());
-}
diff --git a/tests/language_2/super/mixin_test.dart b/tests/language_2/super/mixin_test.dart
deleted file mode 100644
index 9cccbb73ffc..00000000000
--- a/tests/language_2/super/mixin_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart2js regression test: Test that the type mask for non-null exact Mixin is
-// created for Mixin.getter.
-
-import 'package:expect/expect.dart';
-
-class Mixin {
-  @pragma('dart2js:noInline')
-  get getter => 42;
-}
-
-class Superclass {}
-
-class Subclass extends Superclass with Mixin {
-  method() => super.getter;
-}
-
-void main() {
-  Expect.equals(42, new Subclass().method());
-}
diff --git a/tests/language_2/super/no_such_method1_test.dart b/tests/language_2/super/no_such_method1_test.dart
deleted file mode 100644
index 6d61f6c073b..00000000000
--- a/tests/language_2/super/no_such_method1_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class A {
-  int foo();
-  noSuchMethod(im) => 42;
-}
-
-class B extends A {
-  noSuchMethod(im) => 87;
-
-  int foo() => super.foo();
-}
-
-main() {
-  Expect.equals(87, new B().foo());
-}
diff --git a/tests/language_2/super/no_such_method2_test.dart b/tests/language_2/super/no_such_method2_test.dart
deleted file mode 100644
index a43b1a81a0b..00000000000
--- a/tests/language_2/super/no_such_method2_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class A {
-  int get foo;
-  noSuchMethod(im) => 42;
-}
-
-class B extends A {
-  noSuchMethod(im) => 87;
-
-  get foo => super.foo;
-}
-
-main() {
-  Expect.equals(87, new B().foo);
-}
diff --git a/tests/language_2/super/no_such_method3_test.dart b/tests/language_2/super/no_such_method3_test.dart
deleted file mode 100644
index 7a724977e2a..00000000000
--- a/tests/language_2/super/no_such_method3_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-var result;
-
-class A {
-  set foo(int a);
-
-  noSuchMethod(im) {
-    result = 42;
-  }
-}
-
-class B extends A {
-  noSuchMethod(im) {
-    result = 87;
-  }
-
-  set foo(v) => super.foo = v;
-}
-
-main() {
-  new B().foo = 0;
-  Expect.equals(87, result);
-}
diff --git a/tests/language_2/super/no_such_method4_runtime_test.dart b/tests/language_2/super/no_such_method4_runtime_test.dart
deleted file mode 100644
index fff4dee2c5c..00000000000
--- a/tests/language_2/super/no_such_method4_runtime_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-class A {
-  int foo();
-
-  noSuchMethod(im) => 42;
-}
-
-class B extends Object with A {
-  noSuchMethod(im) => 87;
-
-
-}
-
-main() {
-  Expect.equals(87, new B().foo());
-}
diff --git a/tests/language_2/super/no_such_method4_test.dart b/tests/language_2/super/no_such_method4_test.dart
deleted file mode 100644
index c3bc167bfd9..00000000000
--- a/tests/language_2/super/no_such_method4_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class A {
-  int foo();
-
-  noSuchMethod(im) => 42;
-}
-
-class B extends Object with A {
-  noSuchMethod(im) => 87;
-
-  foo() => super.foo();
-  //             ^^^
-  // [analyzer] COMPILE_TIME_ERROR.ABSTRACT_SUPER_MEMBER_REFERENCE
-  // [cfe] Superclass has no method named 'foo'.
-}
-
-main() {
-  Expect.equals(87, new B().foo());
-}
diff --git a/tests/language_2/super/no_such_method5_runtime_test.dart b/tests/language_2/super/no_such_method5_runtime_test.dart
deleted file mode 100644
index c76f43dc936..00000000000
--- a/tests/language_2/super/no_such_method5_runtime_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-class A {
-  int foo();
-
-  noSuchMethod(im) => 42;
-}
-
-class B extends Object with A {
-
-}
-
-main() {
-  Expect.equals(42, new B().foo());
-}
diff --git a/tests/language_2/super/no_such_method5_test.dart b/tests/language_2/super/no_such_method5_test.dart
deleted file mode 100644
index 67e29b0ef97..00000000000
--- a/tests/language_2/super/no_such_method5_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class A {
-  int foo();
-
-  noSuchMethod(im) => 42;
-}
-
-class B extends Object with A {
-  foo() => super.foo();
-  //             ^^^
-  // [analyzer] COMPILE_TIME_ERROR.ABSTRACT_SUPER_MEMBER_REFERENCE
-  // [cfe] Superclass has no method named 'foo'.
-}
-
-main() {
-  Expect.equals(42, new B().foo());
-}
diff --git a/tests/language_2/super/non_const_test.dart b/tests/language_2/super/non_const_test.dart
deleted file mode 100644
index 8ee25dcd240..00000000000
--- a/tests/language_2/super/non_const_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Check fails because const class extends from non const class.
-
-class Base {
-  Base() {}
-}
-
-class Sub extends Base {
-  const Sub(a) : a_ = a;
-  //    ^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONST_CONSTRUCTOR_WITH_NON_CONST_SUPER
-  // [cfe] A constant constructor can't call a non-constant super constructor.
-  final a_;
-}
-
-main() {
-  Sub(0);
-}
diff --git a/tests/language_2/super/operator_index2_test.dart b/tests/language_2/super/operator_index2_test.dart
deleted file mode 100644
index 1665c90b640..00000000000
--- a/tests/language_2/super/operator_index2_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for super indexing operations.
-
-import "package:expect/expect.dart";
-
-class A {
-  var map = new Map<int, int>();
-  operator []=(a, b) {
-    map[a] = b;
-  }
-
-  operator [](a) => map[a];
-}
-
-class B extends A {
-  foo() {
-    super[4] = 42;
-    Expect.equals(42, super[4]);
-    super[4] += 5;
-    Expect.equals(47, super[4]);
-  }
-}
-
-main() {
-  new B().foo();
-}
diff --git a/tests/language_2/super/operator_index3_test.dart b/tests/language_2/super/operator_index3_test.dart
deleted file mode 100644
index 8928b36254e..00000000000
--- a/tests/language_2/super/operator_index3_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for operator[]= resolved in super class.
-
-import "package:expect/expect.dart";
-
-class A {
-  var indexField = new List<int>.filled(2, null);
-  operator []=(index, value) {
-    indexField[index] = value;
-  }
-}
-
-class B extends A {
-  operator [](index) => indexField[index];
-}
-
-class C extends B {
-  test() {
-    Expect.equals(42, super[0] = 42);
-    Expect.equals(42, super[0]);
-    Expect.equals(43, super[0] += 1);
-    Expect.equals(43, super[0]);
-    Expect.equals(43, super[0]++);
-    Expect.equals(44, super[0]);
-
-    Expect.equals(2, super[0] = 2);
-    Expect.equals(2, super[0]);
-    Expect.equals(3, super[0] += 1);
-    Expect.equals(3, super[0]);
-    Expect.equals(3, super[0]++);
-    Expect.equals(4, super[0]);
-  }
-}
-
-main() {
-  new C().test();
-}
diff --git a/tests/language_2/super/operator_index4_test.dart b/tests/language_2/super/operator_index4_test.dart
deleted file mode 100644
index 903aac4ff7d..00000000000
--- a/tests/language_2/super/operator_index4_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for operator[] resolved in the super class.
-
-import "package:expect/expect.dart";
-
-class A {
-  var indexField = new List<int>.filled(2, null);
-  operator [](index) => indexField[index];
-}
-
-class B extends A {
-  operator []=(index, value) {
-    indexField[index] = value;
-  }
-}
-
-class C extends B {
-  test() {
-    Expect.equals(42, super[0] = 42);
-    Expect.equals(42, super[0]);
-    Expect.equals(43, super[0] += 1);
-    Expect.equals(43, super[0]);
-    Expect.equals(43, super[0]++);
-    Expect.equals(44, super[0]);
-
-    Expect.equals(2, super[0] = 2);
-    Expect.equals(2, super[0]);
-    Expect.equals(3, super[0] += 1);
-    Expect.equals(3, super[0]);
-    Expect.equals(3, super[0]++);
-    Expect.equals(4, super[0]);
-  }
-}
-
-main() {
-  new C().test();
-}
diff --git a/tests/language_2/super/operator_index5_test.dart b/tests/language_2/super/operator_index5_test.dart
deleted file mode 100644
index f6aaab84618..00000000000
--- a/tests/language_2/super/operator_index5_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for unresolved super[]=.
-
-import "package:expect/expect.dart";
-
-class A {
-  var indexField = new List<dynamic>.filled(2, null);
-  operator [](index) => indexField[index];
-
-  operator []=(index, value);
-
-  noSuchMethod(Invocation im) {
-    if (im.memberName == const Symbol('[]=')) {
-      Expect.equals(2, im.positionalArguments.length);
-      indexField[im.positionalArguments[0]] = im.positionalArguments[1];
-    } else {
-      Expect.fail('Should not reach here');
-    }
-  }
-}
-
-class B extends A {
-  test() {
-    Expect.equals(42, super[0] = 42);
-    Expect.equals(42, super[0]);
-    Expect.equals(43, super[0] += 1);
-    Expect.equals(43, super[0]);
-    Expect.equals(43, super[0]++);
-    Expect.equals(44, super[0]);
-
-    Expect.equals(2, super[0] = 2);
-    Expect.equals(2, super[0]);
-    Expect.equals(3, super[0] += 1);
-    Expect.equals(3, super[0]);
-    Expect.equals(3, super[0]++);
-    Expect.equals(4, super[0]);
-  }
-}
-
-main() {
-  new B().test();
-}
diff --git a/tests/language_2/super/operator_index6_test.dart b/tests/language_2/super/operator_index6_test.dart
deleted file mode 100644
index 8692ba161b8..00000000000
--- a/tests/language_2/super/operator_index6_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for unresolved super[].
-
-import "package:expect/expect.dart";
-
-class A {
-  var indexField = new List<dynamic>.filled(2, null);
-  operator []=(index, value) {
-    indexField[index] = value;
-  }
-
-  operator [](index);
-
-  noSuchMethod(Invocation im) {
-    if (im.memberName == const Symbol('[]')) {
-      Expect.equals(1, im.positionalArguments.length);
-      return indexField[im.positionalArguments[0]];
-    } else {
-      Expect.fail('Should not reach here');
-    }
-  }
-}
-
-class B extends A {
-  test() {
-    Expect.equals(42, super[0] = 42);
-    Expect.equals(42, super[0]);
-    Expect.equals(43, super[0] += 1);
-    Expect.equals(43, super[0]);
-    Expect.equals(43, super[0]++);
-    Expect.equals(44, super[0]);
-
-    Expect.equals(2, super[0] = 2);
-    Expect.equals(2, super[0]);
-    Expect.equals(3, super[0] += 1);
-    Expect.equals(3, super[0]);
-    Expect.equals(3, super[0]++);
-    Expect.equals(4, super[0]);
-  }
-}
-
-main() {
-  new B().test();
-}
diff --git a/tests/language_2/super/operator_index7_test.dart b/tests/language_2/super/operator_index7_test.dart
deleted file mode 100644
index ebfe0d270b9..00000000000
--- a/tests/language_2/super/operator_index7_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for unresolved super[] and super[]=.
-
-import "package:expect/expect.dart";
-
-class A {
-  var indexField = new List<dynamic>.filled(2, null);
-
-  operator []=(index, value);
-  operator [](index);
-
-  noSuchMethod(Invocation im) {
-    if (im.memberName == const Symbol('[]=')) {
-      Expect.equals(2, im.positionalArguments.length);
-      indexField[im.positionalArguments[0]] = im.positionalArguments[1];
-    } else if (im.memberName == const Symbol('[]')) {
-      Expect.equals(1, im.positionalArguments.length);
-      return indexField[im.positionalArguments[0]];
-    } else {
-      Expect.fail('Should not reach here');
-    }
-  }
-}
-
-class B extends A {
-  test() {
-    Expect.equals(42, super[0] = 42);
-    Expect.equals(42, super[0]);
-    Expect.equals(43, super[0] += 1);
-    Expect.equals(43, super[0]);
-    Expect.equals(43, super[0]++);
-    Expect.equals(44, super[0]);
-
-    Expect.equals(2, super[0] = 2);
-    Expect.equals(2, super[0]);
-    Expect.equals(3, super[0] += 1);
-    Expect.equals(3, super[0]);
-    Expect.equals(3, super[0]++);
-    Expect.equals(4, super[0]);
-  }
-}
-
-main() {
-  new B().test();
-}
diff --git a/tests/language_2/super/operator_index8_test.dart b/tests/language_2/super/operator_index8_test.dart
deleted file mode 100644
index 010adafde86..00000000000
--- a/tests/language_2/super/operator_index8_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for unresolved super[] and super[]= and correct evaluation order.
-
-import "package:expect/expect.dart";
-
-class A {
-  var indexField = new List<dynamic>.filled(2, null);
-
-  operator []=(index, value);
-  operator [](index);
-
-  noSuchMethod(Invocation im) {
-    if (im.memberName == const Symbol('[]=')) {
-      Expect.equals(2, im.positionalArguments.length);
-      indexField[im.positionalArguments[0]] = im.positionalArguments[1];
-    } else if (im.memberName == const Symbol('[]')) {
-      Expect.equals(1, im.positionalArguments.length);
-      return indexField[im.positionalArguments[0]];
-    } else {
-      Expect.fail('Should not reach here');
-    }
-  }
-}
-
-var global = 0;
-
-f() {
-  Expect.equals(0, global++);
-  return 0;
-}
-
-g() {
-  Expect.equals(1, global++);
-  return 42;
-}
-
-class B extends A {
-  test() {
-    Expect.equals(42, super[f()] = g());
-    Expect.equals(2, global);
-  }
-}
-
-main() {
-  new B().test();
-}
diff --git a/tests/language_2/super/operator_index_test.dart b/tests/language_2/super/operator_index_test.dart
deleted file mode 100644
index 327565fe378..00000000000
--- a/tests/language_2/super/operator_index_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that we emit errors for unresolved indexing operations on super.
-
-class A {
-  operator []=(a, b) {}
-}
-
-class B extends A {
-  foo() {
-    super[4] = 42;
-    super[4] += 5; //# 01: compile-time error
-    return super[2]; //# 02: compile-time error
-  }
-}
-
-class C {
-  operator [](a) {}
-}
-
-class D extends C {
-  foo() {
-    super[4] = 42; //# 03: compile-time error
-    super[4] += 5; //# 04: compile-time error
-    return super[2];
-  }
-}
-
-class E {
-  foo() {
-    super[4] = 42; //# 05: compile-time error
-    super[4] += 5; //# 06: compile-time error
-    return super[2]; //# 07: compile-time error
-  }
-}
-
-main() {
-  new B().foo();
-  new D().foo();
-  new E().foo();
-}
diff --git a/tests/language_2/super/operator_test.dart b/tests/language_2/super/operator_test.dart
deleted file mode 100644
index e846e811a4c..00000000000
--- a/tests/language_2/super/operator_test.dart
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing super operator calls
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  String val = "";
-  List things;
-
-  A() : things = ['D', 'a', 'r', 't', 42];
-
-  operator +(String s) {
-    val = "${val}${s}";
-    return this;
-  }
-
-  operator [](i) {
-    return things[i];
-  }
-
-  operator []=(i, val) {
-    return things[i] = val;
-  }
-}
-
-class B extends A {
-  operator +(String s) {
-    super + ("${s}${s}"); // Call A.operator+(this, "${s}${s}").
-    return this;
-  }
-
-  operator [](i) {
-    var temp = super[i];
-    if (temp is String) {
-      return "$temp$temp";
-    }
-    return temp + temp;
-  }
-
-  operator []=(i, val) {
-    // Make sure the index expression is only evaluated
-    // once in the presence of a compound assignment.
-    return super[i++] += val;
-  }
-}
-
-
-main() {
-  var a = new A();
-  a = a + "William"; // operator + of class A.
-  Expect.equals("William", a.val);
-  Expect.equals("r", a[2]); // operator [] of class A.
-
-  a = new B();
-  a += "Tell"; //   operator + of class B.
-  Expect.equals("TellTell", a.val);
-  Expect.equals("rr", a[2]); // operator [] of class B.
-
-  a[4] = 1; // operator []= of class B.
-  Expect.equals(43, a.things[4]);
-  Expect.equals(86, a[4]);
-}
diff --git a/tests/language_2/super/regress47698_test.dart b/tests/language_2/super/regress47698_test.dart
deleted file mode 100644
index 770878ecb91..00000000000
--- a/tests/language_2/super/regress47698_test.dart
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Regression test for https://github.com/dart-lang/sdk/issues/47698.
-
-// Exposes a class field.
-class A {
-  int i;
-  A(this.i);
-}
-
-// Exposes a getter/setter pair.
-class B {
-  int _j;
-  int get j => _j;
-  set j(int x) => _j = x;
-  B(this._j);
-}
-
-// A super class field used in constructor as getter and setter.
-class C extends A {
-  C(int val) : super(val) {
-    var x = super.i + 10; // Getter is used first.
-    super.i = x + 100; // Boom! Missing setter.
-  }
-}
-
-class D extends A {
-  D(int val) : super(val) {
-    super.i = 100; // Setter is used first.
-    super.i = super.i + 10 + val; // Boom! Missing getter.
-  }
-}
-
-// Actual super getter and setter used in constructor
-class E extends B {
-  E(int val) : super(val) {
-    var x = super.j + 10; // Getter is used first.
-    super.j = x + 100; // Boom! Missing setter.
-  }
-}
-
-class F extends B {
-  F(int val) : super(val) {
-    super.j = 100; // Setter is used first.
-    super.j = super.j + 10 + val; // Boom! Missing getter.
-  }
-}
-
-void main() {
-  var c = C(1);
-  Expect.equals(c.i, 111);
-  var d = D(1);
-  Expect.equals(d.i, 111);
-  var e = E(1);
-  Expect.equals(e.j, 111);
-  var f = F(1);
-  Expect.equals(f.j, 111);
-}
diff --git a/tests/language_2/super/setter_interceptor_test.dart b/tests/language_2/super/setter_interceptor_test.dart
deleted file mode 100644
index acfd50e0522..00000000000
--- a/tests/language_2/super/setter_interceptor_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that we correctly intercept super getter and setter calls.
-
-import "package:expect/expect.dart";
-
-var expected;
-
-class A {
-  set length(a) {
-    Expect.equals(expected, a);
-  }
-
-  get length => 41;
-}
-
-class B extends A {
-  test() {
-    expected = 42;
-    Expect.equals(42, super.length = 42);
-    expected = 42;
-    Expect.equals(42, super.length += 1);
-    expected = 42;
-    Expect.equals(42, ++super.length);
-    expected = 40;
-    Expect.equals(40, --super.length);
-    expected = 42;
-    Expect.equals(41, super.length++);
-    expected = 40;
-    Expect.equals(41, super.length--);
-    Expect.equals(41, super.length);
-  }
-}
-
-main() {
-  // Ensures the list class is instantiated.
-  print([]);
-  new B().test();
-}
diff --git a/tests/language_2/super/setter_test.dart b/tests/language_2/super/setter_test.dart
deleted file mode 100644
index 6baaf0c72fd..00000000000
--- a/tests/language_2/super/setter_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing super setters and getters.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Base {
-  Base() {}
-  String value_;
-
-  String get value { return value_; }
-  String //# 01: compile-time error
-  set value(String newValue) {
-    value_ = 'Base:$newValue';
-  }
-}
-
-
-class Derived extends Base {
-  Derived() : super() {}
-
-  String //# 02: compile-time error
-  set value(String newValue) {
-    super.value = 'Derived:$newValue';
-  }
-  String get value { return super.value; }
-}
-
-
-class SuperSetterTest {
-  static void testMain() {
-    final b = new Derived();
-    b.value = "foo";
-    Expect.equals("Base:Derived:foo", b.value);
-  }
-}
-
-main() {
-  SuperSetterTest.testMain();
-}
diff --git a/tests/language_2/super/super_test.dart b/tests/language_2/super/super_test.dart
deleted file mode 100644
index fedc169725d..00000000000
--- a/tests/language_2/super/super_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-int i = 0;
-
-// Tests super calls and constructors.
-main() {
-  Sub sub = new Sub(1, 2);
-  Expect.equals(1, sub.x);
-  Expect.equals(2, sub.y);
-  Expect.equals(3, sub.z);
-  Expect.equals(1, sub.v);
-  Expect.equals(2, sub.w);
-  Expect.equals(3, sub.u);
-
-  sub = new Sub.stat();
-  Expect.equals(2, sub.x);
-  Expect.equals(3, sub.y);
-  Expect.equals(0, sub.v);
-  Expect.equals(1, sub.w);
-  Expect.equals(4, sub.z);
-  Expect.equals(5, sub.u);
-}
-
-class Sup {
-  var x, y, z;
-
-  Sup(a, b)
-      : this.x = a,
-        this.y = b {
-    z = a + b;
-  }
-
-  Sup.stat()
-      : this.x = i++,
-        this.y = i++ {
-    z = i++;
-  }
-}
-
-class Sub extends Sup {
-  var u, v, w;
-
-  Sub(a, b)
-      : this.v = a,
-        this.w = b,
-        super(a, b) {
-    u = a + b;
-  }
-
-  Sub.stat()
-      : this.v = i++,
-        this.w = i++,
-        super.stat() {
-    u = i++;
-  }
-}
diff --git a/tests/language_2/superinterface_variance/abstract_class_error_test.dart b/tests/language_2/superinterface_variance/abstract_class_error_test.dart
deleted file mode 100644
index a2a5d04f728..00000000000
--- a/tests/language_2/superinterface_variance/abstract_class_error_test.dart
+++ /dev/null
@@ -1,134 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-typedef F1<X> = void Function(X);
-typedef F2<X> = X Function(X);
-typedef F3<X> = void Function<Y extends X>();
-typedef F4<X> = X Function(X Function(void));
-typedef F5<X, Y> = Y Function(X);
-typedef F6<X, Y> = X Function(Y);
-
-class A<X> {}
-
-abstract class B<X> extends A<A<F1<X>>> {} //# 01: compile-time error
-
-abstract class B<X> extends A<A<F2<X>>> {} //# 02: compile-time error
-
-abstract class B<X> extends A<A<F3<X>>> {} //# 03: compile-time error
-
-abstract class B<X> extends A<A<F4<X>>> {} //# 04: compile-time error
-
-abstract class B<X, Y> extends A<A<F5<X, Y>>> {} //# 05: compile-time error
-
-abstract class B<X, Y> extends A<A<F6<X, Y>>> {} //# 06: compile-time error
-
-abstract class B<X> extends Object //# 07: compile-time error
-    with //# 07: continued
-        A<A<F1<X>>> {} //# 07: continued
-
-abstract class B<X> extends Object //# 08: compile-time error
-    with //# 08: continued
-        A<A<F2<X>>> {} //# 08: continued
-
-abstract class B<X> extends Object //# 09: compile-time error
-    with //# 09: continued
-        A<A<F3<X>>> {} //# 09: continued
-
-abstract class B<X> extends Object //# 10: compile-time error
-    with //# 10: continued
-        A<A<F4<X>>> {} //# 10: continued
-
-abstract class B<X, Y> extends Object //# 11: compile-time error
-    with //# 11: continued
-        A<A<F5<X, Y>>> {} //# 11: continued
-
-abstract class B<X, Y> extends Object //# 12: compile-time error
-    with //# 12: continued
-        A<A<F6<X, Y>>> {} //# 12: continued
-
-abstract class B<X> implements A<A<F1<X>>> {} //# 13: compile-time error
-
-abstract class B<X> implements A<A<F2<X>>> {} //# 14: compile-time error
-
-abstract class B<X> implements A<A<F3<X>>> {} //# 15: compile-time error
-
-abstract class B<X> implements A<A<F4<X>>> {} //# 16: compile-time error
-
-abstract class B<X, Y> implements A<A<F5<X, Y>>> {} //# 17: compile-time error
-
-abstract class B<X, Y> implements A<A<F6<X, Y>>> {} //# 18: compile-time error
-
-abstract class B<X> extends A<A<void Function(X)>> {} //# 19: compile-time error
-
-abstract class B<X> extends A<A<X Function(X)>> {} //# 20: compile-time error
-
-// Two errors here: Invariance in superinterface and
-// generic function type used as actual type argument.
-abstract class B<X> extends //# 21: compile-time error
-    A<A<void Function<Y extends X>()>> {} //# 21: continued
-
-abstract class B<X> extends //# 22: compile-time error
-    A<A<X Function(X Function(void))>> {} //# 22: continued
-
-abstract class B<X, Y> extends A<A<Y Function(X)>> {} //# 23: compile-time error
-
-abstract class B<X, Y> extends A<A<X Function(Y)>> {} //# 24: compile-time error
-
-abstract class B<X> extends Object //# 25: compile-time error
-    with //# 25: continued
-        A<A<void Function(X)>> {} //# 25: continued
-
-abstract class B<X> extends Object //# 26: compile-time error
-    with //# 26: continued
-        A<A<X Function(X)>> {} //# 26: continued
-
-// Two errors here: Invariance in superinterface and
-// generic function type used as actual type argument.
-abstract class B<X> extends Object //# 27: compile-time error
-    with //# 27: continued
-        A<A<void Function<Y extends X>()>> {} //# 27: continued
-
-abstract class B<X> extends Object //# 28: compile-time error
-    with //# 28: continued
-        A<A<X Function(X Function(void))>> {} //# 28: continued
-
-abstract class B<X, Y> extends Object //# 29: compile-time error
-    with //# 29: continued
-        A<A<Y Function(X)>> {} //# 29: continued
-
-abstract class B<X, Y> extends Object //# 30: compile-time error
-    with //# 30: continued
-        A<A<X Function(Y)>> {} //# 30: continued
-
-abstract class B<X> //# 31: compile-time error
-    implements //# 31: continued
-        A<A<void Function(X)>> {} //# 31: continued
-
-abstract class B<X> //# 32: compile-time error
-    implements //# 32: continued
-        A<A<X Function(X)>> {} //# 32: continued
-
-// Two errors here: Invariance in superinterface and
-// generic function type used as actual type argument.
-abstract class B<X> //# 33: compile-time error
-    implements //# 33: continued
-        A<A<void Function<Y extends X>()>> {} //# 33: continued
-
-abstract class B<X> //# 34: compile-time error
-    implements //# 34: continued
-        A<A<X Function(X Function(void))>> {} //# 34: continued
-
-abstract class B<X, Y> //# 35: compile-time error
-    implements //# 35: continued
-        A<A<Y Function(X)>> {} //# 35: continued
-
-abstract class B<X, Y> //# 36: compile-time error
-    implements //# 36: continued
-        A<A<X Function(Y)>> {} //# 36: continued
-
-main() {
-  A();
-}
diff --git a/tests/language_2/superinterface_variance/abstract_mixin_application_error_test.dart b/tests/language_2/superinterface_variance/abstract_mixin_application_error_test.dart
deleted file mode 100644
index db640fb25f1..00000000000
--- a/tests/language_2/superinterface_variance/abstract_mixin_application_error_test.dart
+++ /dev/null
@@ -1,163 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-typedef F1<X> = void Function(X);
-typedef F2<X> = X Function(X);
-typedef F3<X> = void Function<Y extends X>();
-typedef F4<X> = X Function(X Function(void));
-typedef F5<X, Y> = Y Function(X);
-typedef F6<X, Y> = X Function(Y);
-
-class A<X> {}
-
-mixin B {}
-
-class C0 = Object with B;
-
-abstract class C<X> = A<F1<X>> with B; //# 01: compile-time error
-
-abstract class C<X> = A<F2<X>> with B; //# 02: compile-time error
-
-abstract class C<X> = A<F3<X>> with B; //# 03: compile-time error
-
-abstract class C<X> = A<F4<X>> with B; //# 04: compile-time error
-
-abstract class C<X, Y> = A<F5<X, Y>> with B; //# 05: compile-time error
-
-abstract class C<X, Y> = A<F6<X, Y>> with B; //# 06: compile-time error
-
-abstract class C<X> = Object with A<F1<X>>; //# 07: compile-time error
-
-abstract class C<X> = Object with A<F2<X>>; //# 08: compile-time error
-
-abstract class C<X> = Object with A<F3<X>>; //# 09: compile-time error
-
-abstract class C<X> = Object with A<F4<X>>; //# 10: compile-time error
-
-abstract class C<X, Y> = Object with A<F5<X, Y>>; //# 11: compile-time error
-
-abstract class C<X, Y> = Object with A<F6<X, Y>>; //# 12: compile-time error
-
-abstract class C<X> = Object //# 13: compile-time error
-    with //# 13: continued
-        B //# 13: continued
-    implements //# 13: continued
-        A<F1<X>>; //# 13: continued
-
-abstract class C<X> = Object //# 14: compile-time error
-    with //# 14: continued
-        B //# 14: continued
-    implements //# 14: continued
-        A<F2<X>>; //# 14: continued
-
-abstract class C<X> = Object //# 15: compile-time error
-    with //# 15: continued
-        B //# 15: continued
-    implements //# 15: continued
-        A<F3<X>>; //# 15: continued
-
-abstract class C<X> = Object //# 16: compile-time error
-    with //# 16: continued
-        B //# 16: continued
-    implements //# 16: continued
-        A<F4<X>>; //# 16: continued
-
-abstract class C<X, Y> = Object //# 17: compile-time error
-    with //# 17: continued
-        B //# 17: continued
-    implements //# 17: continued
-        A<F5<X, Y>>; //# 17: continued
-
-abstract class C<X, Y> = Object //# 18: compile-time error
-    with //# 18: continued
-        B //# 18: continued
-    implements //# 18: continued
-        A<F6<X, Y>>; //# 18: continued
-
-abstract class C<X> = A<void Function(X)> with B; //# 19: compile-time error
-
-abstract class C<X> = A<X Function(X)> with B; //# 20: compile-time error
-
-// Two errors here: Invariance in superinterface and
-// generic function type used as actual type argument.
-abstract class C<X> = A<void Function<Y extends X>()> //# 21: compile-time error
-    with //# 21: continued
-        B; //# 21: continued
-
-abstract class C<X> = A<X Function(X Function(void))> //# 22: compile-time error
-    with //# 22: continued
-        B; //# 22: continued
-
-abstract class C<X, Y> = A<Y Function(X)> with B; //# 23: compile-time error
-
-abstract class C<X, Y> = A<X Function(Y)> with B; //# 24: compile-time error
-
-abstract class C<X> = Object //# 25: compile-time error
-    with //# 25: continued
-        A<void Function(X)>; //# 25: continued
-
-abstract class C<X> = Object with A<X Function(X)>; //# 26: compile-time error
-
-// Two errors here: Invariance in superinterface and
-// generic function type used as actual type argument.
-abstract class C<X> = Object //# 27: compile-time error
-    with //# 27: continued
-        A<void Function<Y extends X>()>; //# 27: continued
-
-abstract class C<X> = Object //# 28: compile-time error
-    with //# 28: continued
-        A<X Function(X Function(void))>; //# 28: continued
-
-abstract class C<X, Y> = Object //# 29: compile-time error
-    with //# 29: continued
-        A<Y Function(X)>; //# 29: continued
-
-abstract class C<X, Y> = Object //# 30: compile-time error
-    with //# 30: continued
-        A<X Function(Y)>; //# 30: continued
-
-abstract class C<X> = Object //# 31: compile-time error
-    with //# 31: continued
-        B //# 31: continued
-    implements //# 31: continued
-        A<void Function(X)>; //# 31: continued
-
-abstract class C<X> = Object //# 32: compile-time error
-    with //# 32: continued
-        B //# 32: continued
-    implements //# 32: continued
-        A<X Function(X)>; //# 32: continued
-
-// Two errors here: Invariance in superinterface and
-// generic function type used as actual type argument.
-abstract class C<X> = Object //# 33: compile-time error
-    with //# 33: continued
-        B //# 33: continued
-    implements //# 33: continued
-        A<void Function<Y extends X>()>; //# 33: continued
-
-abstract class C<X> = Object //# 34: compile-time error
-    with //# 34: continued
-        B //# 34: continued
-    implements //# 34: continued
-        A<X Function(X Function(void))>; //# 34: continued
-
-abstract class C<X, Y> = Object //# 35: compile-time error
-    with //# 35: continued
-        B //# 35: continued
-    implements //# 35: continued
-        A<Y Function(X)>; //# 35: continued
-
-abstract class C<X, Y> = Object //# 36: compile-time error
-    with //# 36: continued
-        B //# 36: continued
-    implements //# 36: continued
-        A<X Function(Y)>; //# 36: continued
-
-main() {
-  A();
-  C0();
-}
diff --git a/tests/language_2/superinterface_variance/concrete_class_error_test.dart b/tests/language_2/superinterface_variance/concrete_class_error_test.dart
deleted file mode 100644
index f0a25e5f604..00000000000
--- a/tests/language_2/superinterface_variance/concrete_class_error_test.dart
+++ /dev/null
@@ -1,104 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-typedef F1<X> = void Function(X);
-typedef F2<X> = X Function(X);
-typedef F3<X> = void Function<Y extends X>();
-typedef F4<X> = X Function(X Function(void));
-typedef F5<X, Y> = Y Function(X);
-typedef F6<X, Y> = X Function(Y);
-
-class A<X> {}
-
-class B<X> extends A<F1<X>> {} //# 01: compile-time error
-
-class B<X> extends A<F2<X>> {} //# 02: compile-time error
-
-class B<X> extends A<F3<X>> {} //# 03: compile-time error
-
-class B<X> extends A<F4<X>> {} //# 04: compile-time error
-
-class B<X, Y> extends A<F5<X, Y>> {} //# 05: compile-time error
-
-class B<X, Y> extends A<F6<X, Y>> {} //# 06: compile-time error
-
-class B<X> extends Object with A<F1<X>> {} //# 07: compile-time error
-
-class B<X> extends Object with A<F2<X>> {} //# 08: compile-time error
-
-class B<X> extends Object with A<F3<X>> {} //# 09: compile-time error
-
-class B<X> extends Object with A<F4<X>> {} //# 10: compile-time error
-
-class B<X, Y> extends Object with A<F5<X, Y>> {} //# 11: compile-time error
-
-class B<X, Y> extends Object with A<F6<X, Y>> {} //# 12: compile-time error
-
-class B<X> implements A<F1<X>> {} //# 13: compile-time error
-
-class B<X> implements A<F2<X>> {} //# 14: compile-time error
-
-class B<X> implements A<F3<X>> {} //# 15: compile-time error
-
-class B<X> implements A<F4<X>> {} //# 16: compile-time error
-
-class B<X, Y> implements A<F5<X, Y>> {} //# 17: compile-time error
-
-class B<X, Y> implements A<F6<X, Y>> {} //# 18: compile-time error
-
-class B<X> extends A<void Function(X)> {} //# 19: compile-time error
-
-class B<X> extends A<X Function(X)> {} //# 20: compile-time error
-
-// Two errors here: Invariance in superinterface and
-// generic function type used as actual type argument.
-class B<X> extends A<void Function<Y extends X>()> {} //# 21: compile-time error
-
-class B<X> extends A<X Function(X Function(void))> {} //# 22: compile-time error
-
-class B<X, Y> extends A<Y Function(X)> {} //# 23: compile-time error
-
-class B<X, Y> extends A<X Function(Y)> {} //# 24: compile-time error
-
-class B<X> extends Object with A<void Function(X)> {} //# 25: compile-time error
-
-class B<X> extends Object with A<X Function(X)> {} //# 26: compile-time error
-
-// Two errors here: Invariance in superinterface and
-// generic function type used as actual type argument.
-class B<X> extends Object //# 27: compile-time error
-    with //# 27: continued
-        A<void Function<Y extends X>()> {} //# 27: continued
-
-class B<X> extends Object //# 28: compile-time error
-    with //# 28: continued
-        A<X Function(X Function(void))> {} //# 28: continued
-
-class B<X, Y> extends Object with A<Y Function(X)> {} //# 29: compile-time error
-
-class B<X, Y> extends Object with A<X Function(Y)> {} //# 30: compile-time error
-
-class B<X> implements A<void Function(X)> {} //# 31: compile-time error
-
-class B<X> implements A<X Function(X)> {} //# 32: compile-time error
-
-// Two errors here: Invariance in superinterface and
-// generic function type used as actual type argument.
-class B<X> //# 33: compile-time error
-    implements //# 33: continued
-        A<void Function<Y extends X>()> {} //# 33: continued
-
-class B<X> //# 34: compile-time error
-    implements //# 34: continued
-        A<X Function(X Function(void))> {} //# 34: continued
-
-class B<X, Y> implements A<Y Function(X)> {} //# 35: compile-time error
-
-class B<X, Y> implements A<X Function(Y)> {} //# 36: compile-time error
-
-main() {
-  A();
-}
diff --git a/tests/language_2/superinterface_variance/concrete_mixin_application_error_test.dart b/tests/language_2/superinterface_variance/concrete_mixin_application_error_test.dart
deleted file mode 100644
index 51231a8c1c6..00000000000
--- a/tests/language_2/superinterface_variance/concrete_mixin_application_error_test.dart
+++ /dev/null
@@ -1,129 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-typedef F1<X> = void Function(X);
-typedef F2<X> = X Function(X);
-typedef F3<X> = void Function<Y extends X>();
-typedef F4<X> = X Function(X Function(void));
-typedef F5<X, Y> = Y Function(X);
-typedef F6<X, Y> = X Function(Y);
-
-class A<X> {}
-
-mixin B {}
-
-class C0 = Object with B;
-
-class C<X> = A<F1<X>> with B; //# 01: compile-time error
-
-class C<X> = A<F2<X>> with B; //# 02: compile-time error
-
-class C<X> = A<F3<X>> with B; //# 03: compile-time error
-
-class C<X> = A<F4<X>> with B; //# 04: compile-time error
-
-class C<X, Y> = A<F5<X, Y>> with B; //# 05: compile-time error
-
-class C<X, Y> = A<F6<X, Y>> with B; //# 06: compile-time error
-
-class C<X> = Object with A<F1<X>>; //# 07: compile-time error
-
-class C<X> = Object with A<F2<X>>; //# 08: compile-time error
-
-class C<X> = Object with A<F3<X>>; //# 09: compile-time error
-
-class C<X> = Object with A<F4<X>>; //# 10: compile-time error
-
-class C<X, Y> = Object with A<F5<X, Y>>; //# 11: compile-time error
-
-class C<X, Y> = Object with A<F6<X, Y>>; //# 12: compile-time error
-
-class C<X> = Object with B implements A<F1<X>>; //# 13: compile-time error
-
-class C<X> = Object with B implements A<F2<X>>; //# 14: compile-time error
-
-class C<X> = Object with B implements A<F3<X>>; //# 15: compile-time error
-
-class C<X> = Object with B implements A<F4<X>>; //# 16: compile-time error
-
-class C<X, Y> = Object with B implements A<F5<X, Y>>; //# 17: compile-time error
-
-class C<X, Y> = Object with B implements A<F6<X, Y>>; //# 18: compile-time error
-
-class C<X> = A<void Function(X)> with B; //# 19: compile-time error
-
-class C<X> = A<X Function(X)> with B; //# 20: compile-time error
-
-// Two errors here: Invariance in superinterface and
-// generic function type used as actual type argument.
-class C<X> = A<void Function<Y extends X>()> with B; //# 21: compile-time error
-
-class C<X> = A<X Function(X Function(void))> with B; //# 22: compile-time error
-
-class C<X, Y> = A<Y Function(X)> with B; //# 23: compile-time error
-
-class C<X, Y> = A<X Function(Y)> with B; //# 24: compile-time error
-
-class C<X> = Object with A<void Function(X)>; //# 25: compile-time error
-
-class C<X> = Object with A<X Function(X)>; //# 26: compile-time error
-
-// Two errors here: Invariance in superinterface and
-// generic function type used as actual type argument.
-class C<X> = Object //# 27: compile-time error
-    with //# 27: continued
-        A<void Function<Y extends X>()>; //# 27: continued
-
-class C<X> = Object //# 28: compile-time error
-    with //# 28: continued
-        A<X Function(X Function(void))>; //# 28: continued
-
-class C<X, Y> = Object with A<Y Function(X)>; //# 29: compile-time error
-
-class C<X, Y> = Object with A<X Function(Y)>; //# 30: compile-time error
-
-class C<X> = Object //# 31: compile-time error
-    with //# 31: continued
-        B //# 31: continued
-    implements //# 31: continued
-        A<void Function(X)>; //# 31: continued
-
-class C<X> = Object //# 32: compile-time error
-    with //# 32: continued
-        B //# 32: continued
-    implements //# 32: continued
-        A<X Function(X)>; //# 32: continued
-
-// Two errors here: Invariance in superinterface and
-// generic function type used as actual type argument.
-class C<X> = Object //# 33: compile-time error
-    with //# 33: continued
-        B //# 33: continued
-    implements //# 33: continued
-        A<void Function<Y extends X>()>; //# 33: continued
-
-class C<X> = Object //# 34: compile-time error
-    with //# 34: continued
-        B //# 34: continued
-    implements //# 34: continued
-        A<X Function(X Function(void))>; //# 34: continued
-
-class C<X, Y> = Object //# 35: compile-time error
-    with //# 35: continued
-        B //# 35: continued
-    implements //# 35: continued
-        A<Y Function(X)>; //# 35: continued
-
-class C<X, Y> = Object //# 36: compile-time error
-    with //# 36: continued
-        B //# 36: continued
-    implements //# 36: continued
-        A<X Function(Y)>; //# 36: continued
-
-main() {
-  A();
-  C0();
-}
diff --git a/tests/language_2/superinterface_variance/covariance_test.dart b/tests/language_2/superinterface_variance/covariance_test.dart
deleted file mode 100644
index 8e506a177a9..00000000000
--- a/tests/language_2/superinterface_variance/covariance_test.dart
+++ /dev/null
@@ -1,89 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-typedef F<X> = X Function();
-typedef G<X> = void Function(void Function(X));
-
-class A<X> {}
-
-class B01<X> extends A<F<X>> {}
-
-class B02<X> extends A<G<X>> {}
-
-class B03<X> extends A<X Function()> {}
-
-class B04<X> extends A<void Function(void Function(X))> {}
-
-class B05<X> extends Object with A<F<X>> {}
-
-class B06<X> extends Object with A<G<X>> {}
-
-class B07<X> extends Object with A<X Function()> {}
-
-class B08<X> extends Object with A<void Function(void Function(X))> {}
-
-class B09<X> implements A<F<X>> {}
-
-class B10<X> implements A<G<X>> {}
-
-class B11<X> implements A<X Function()> {}
-
-class B12<X> implements A<void Function(void Function(X))> {}
-
-abstract class B13<X> extends A<A<F<X>>> {}
-
-abstract class B14<X> extends A<A<G<X>>> {}
-
-abstract class B15<X> extends A<A<X Function()>> {}
-
-abstract class B16<X> extends A<A<void Function(void Function(X))>> {}
-
-abstract class B17<X> extends Object with A<A<F<X>>> {}
-
-abstract class B18<X> extends Object with A<A<G<X>>> {}
-
-abstract class B19<X> extends Object with A<A<X Function()>> {}
-
-abstract class B20<X> extends Object
-    with A<A<void Function(void Function(X))>> {}
-
-abstract class B21<X> implements A<A<F<X>>> {}
-
-abstract class B22<X> implements A<A<G<X>>> {}
-
-abstract class B23<X> implements A<A<X Function()>> {}
-
-abstract class B24<X> implements A<A<void Function(void Function(X))>> {}
-
-main() {
-  A();
-
-  B01();
-  B02();
-  B03();
-  B04();
-  B05();
-  B06();
-  B07();
-  B08();
-  B09();
-  B10();
-  B11();
-  B12();
-
-  B13 b13;
-  B14 b14;
-  B15 b15;
-  B16 b16;
-  B17 b17;
-  B18 b18;
-  B19 b19;
-  B20 b20;
-  B21 b21;
-  B22 b22;
-  B23 b23;
-  B24 b24;
-}
diff --git a/tests/language_2/superinterface_variance/mixin_error_test.dart b/tests/language_2/superinterface_variance/mixin_error_test.dart
deleted file mode 100644
index 446460864bf..00000000000
--- a/tests/language_2/superinterface_variance/mixin_error_test.dart
+++ /dev/null
@@ -1,164 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-typedef F1<X> = void Function(X);
-typedef F2<X> = X Function(X);
-typedef F3<X> = void Function<Y extends X>();
-typedef F4<X> = X Function(X Function(void));
-typedef F5<X, Y> = Y Function(X);
-typedef F6<X, Y> = X Function(Y);
-
-class A<X> {}
-
-mixin B<X> on A<F1<X>> {} //# 01: compile-time error
-
-mixin B<X> on A<F2<X>> {} //# 02: compile-time error
-
-mixin B<X> on A<F3<X>> {} //# 03: compile-time error
-
-mixin B<X> on A<F4<X>> {} //# 04: compile-time error
-
-mixin B<X, Y> on A<F5<X, Y>> {} //# 05: compile-time error
-
-mixin B<X, Y> on A<F6<X, Y>> {} //# 06: compile-time error
-
-mixin B<X> on Object, A<F1<X>> {} //# 07: compile-time error
-
-mixin B<X> on Object, A<F2<X>> {} //# 08: compile-time error
-
-mixin B<X> on Object, A<F3<X>> {} //# 09: compile-time error
-
-mixin B<X> on Object, A<F4<X>> {} //# 10: compile-time error
-
-mixin B<X, Y> on Object, A<F5<X, Y>> {} //# 11: compile-time error
-
-mixin B<X, Y> on Object, A<F6<X, Y>> {} //# 12: compile-time error
-
-mixin B<X> implements A<F1<X>> {} //# 13: compile-time error
-
-mixin B<X> implements A<F2<X>> {} //# 14: compile-time error
-
-mixin B<X> implements A<F3<X>> {} //# 15: compile-time error
-
-mixin B<X> implements A<F4<X>> {} //# 16: compile-time error
-
-mixin B<X, Y> implements A<F5<X, Y>> {} //# 17: compile-time error
-
-mixin B<X, Y> implements A<F6<X, Y>> {} //# 18: compile-time error
-
-mixin B<X> on A<void Function(X)> {} //# 19: compile-time error
-
-mixin B<X> on A<X Function(X)> {} //# 20: compile-time error
-
-// Two errors here: Invariance in `on` clause and
-// generic function type used as actual type argument.
-mixin B<X> on A<void Function<Y extends X>()> {} //# 21: compile-time error
-
-mixin B<X> on A<X Function(X Function(void))> {} //# 22: compile-time error
-
-mixin B<X, Y> on A<Y Function(X)> {} //# 23: compile-time error
-
-mixin B<X, Y> on A<X Function(Y)> {} //# 24: compile-time error
-
-mixin B<X> on Object, A<void Function(X)> {} //# 25: compile-time error
-
-mixin B<X> on Object, A<X Function(X)> {} //# 26: compile-time error
-
-// Two errors here: Invariance in `on` clause and
-// generic function type used as actual type argument.
-mixin B<X> //# 27: compile-time error
-    on //# 27: continued
-        Object, //# 27: continued
-        A<void Function<Y extends X>()> {} //# 27: continued
-
-mixin B<X> //# 28: compile-time error
-    on //# 28: continued
-        Object, //# 28: continued
-        A<X Function(X Function(void))> {} //# 28: continued
-
-mixin B<X, Y> on Object, A<Y Function(X)> {} //# 29: compile-time error
-
-mixin B<X, Y> on Object, A<X Function(Y)> {} //# 30: compile-time error
-
-mixin B<X> implements A<void Function(X)> {} //# 31: compile-time error
-
-mixin B<X> implements A<X Function(X)> {} //# 32: compile-time error
-
-// Two errors here: Invariance in superinterface and
-// generic function type used as actual type argument.
-mixin B<X> //# 33: compile-time error
-    implements //# 33: continued
-        A<void Function<Y extends X>()> {} //# 33: continued
-
-mixin B<X> //# 34: compile-time error
-    implements //# 34: continued
-        A<X Function(X Function(void))> {} //# 34: continued
-
-mixin B<X, Y> implements A<Y Function(X)> {} //# 35: compile-time error
-
-mixin B<X, Y> implements A<X Function(Y)> {} //# 36: compile-time error
-
-// A superinterface variance error can arise for an inferred type. For
-// instance, mixin inference and instantiation to bound transforms `B` to
-// `B<X, F1<X>>` in subtest 37.
-
-class C<X> extends A<X> with B {} //# 37: compile-time error
-
-mixin B<X, Y extends F1<X>> on A<X> {} //# 37: continued
-
-class C<X> extends A<X> with B {} //# 38: compile-time error
-
-mixin B<X, Y extends F2<X>> on A<X> {} //# 38: continued
-
-class C<X> extends A<X> with B {} //# 39: compile-time error
-
-mixin B<X, Y extends F3<X>> on A<X> {} //# 39: continued
-
-class C<X> extends A<X> with B {} //# 40: compile-time error
-
-mixin B<X, Y extends F4<X>> on A<X> {} //# 40: continued
-
-class C<X> extends A<X> with B {} //# 41: compile-time error
-
-mixin B<X, Y extends F5<X, Y>> on A<X> {} //# 41: continued
-
-// Different kind of error here: I2b binds `Y` to `Null` which yields the
-// correct super-bounded type `B<X, F6<X, Null>>`. But it is still an error
-// for `C`, because a superinterface cannot be a super-bounded type.
-class C<X> extends A<X> with B {} //# 42: compile-time error
-
-mixin B<X, Y extends F6<X, Y>> on A<X> {} //# 42: continued
-
-class C<X> extends A<X> with B {} //# 43: compile-time error
-
-mixin B<X, Y extends void Function(X)> on A<X> {} //# 43: continued
-
-class C<X> extends A<X> with B {} //# 44: compile-time error
-
-mixin B<X, Y extends X Function(X)> on A<X> {} //# 44: continued
-
-// Two errors here: Invariance in inferred superinterface of `C` and
-// generic function type used as bound.
-class C<X> extends A<X> with B {} //# 45: compile-time error
-
-mixin B<X, Y extends void Function<Z extends X>()> on A<X> {} //# 45: continued
-
-class C<X> extends A<X> with B {} //# 46: compile-time error
-
-mixin B<X, Y extends X Function(X Function(void))> on A<X> {} //# 46: continued
-
-class C<X> extends A<X> with B {} //# 47: compile-time error
-
-mixin B<X, Y extends Y Function(X)> on A<X> {} //# 47: continued
-
-// Similar to subtest 42.
-class C<X> extends A<X> with B {} //# 48: compile-time error
-
-mixin B<X, Y extends X Function(Y)> on A<X> {} //# 48: continued
-
-main() {
-  A();
-}
diff --git a/tests/language_2/switch/aborting_switch_case_test.dart b/tests/language_2/switch/aborting_switch_case_test.dart
deleted file mode 100644
index 881ca30e6da..00000000000
--- a/tests/language_2/switch/aborting_switch_case_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to be confused when inlining
-// method that always aborts in a switch case.
-
-import "package:expect/expect.dart";
-
-foo() {
-  throw 42;
-}
-
-main() {
-  var exception;
-  try {
-    switch (42) {
-      case 42:
-        foo();
-        foo();
-        break;
-    }
-  } catch (e) {
-    exception = e;
-  }
-  Expect.equals(42, exception);
-}
diff --git a/tests/language_2/switch/backward_jump_test.dart b/tests/language_2/switch/backward_jump_test.dart
deleted file mode 100644
index dbcde00f928..00000000000
--- a/tests/language_2/switch/backward_jump_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// VMOptions=
-// VMOptions=--force-switch-dispatch-type=0
-// VMOptions=--force-switch-dispatch-type=1
-// VMOptions=--force-switch-dispatch-type=2
-
-import 'package:expect/expect.dart';
-
-main() {
-  Expect.equals(test(5), 'a');
-  Expect.equals(test(10), 'a through b');
-  Expect.equals(test(7), 'b');
-}
-
-String test(int i) {
-  switch (i) {
-    a:
-    case 5:
-      {
-        if (i == 10) {
-          return 'a through b';
-        }
-        if (i == 0) {
-          return 'a';
-        }
-        i -= 1;
-        continue a; // backward jump to non-default self
-      }
-
-    b:
-    default:
-      {
-        if (i == 10) {
-          continue a; // backward jump to non-default
-        }
-        if (i == 0) {
-          return 'b';
-        }
-        i -= 1;
-        continue b; // backward jump to default
-      }
-  }
-}
diff --git a/tests/language_2/switch/bad_case_runtime_test.dart b/tests/language_2/switch/bad_case_runtime_test.dart
deleted file mode 100644
index b47e5cc9571..00000000000
--- a/tests/language_2/switch/bad_case_runtime_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test reporting a compile-time error if case expressions do not all have
-// the same type or are of type double.
-
-import "package:expect/expect.dart";
-
-void main() {
-  Expect.equals("IV", caesarSays(4));
-  Expect.equals(null, caesarSays(2));
-  Expect.equals(null, archimedesSays(3.14));
-}
-
-caesarSays(n) {
-  switch (n) {
-    case 1:
-      return "I";
-    case 4:
-      return "IV";
-
-
-  }
-  return null;
-}
-
-archimedesSays(n) {
-
-
-
-
-
-
-  return null;
-}
diff --git a/tests/language_2/switch/bad_case_test.dart b/tests/language_2/switch/bad_case_test.dart
deleted file mode 100644
index 85c88faf08a..00000000000
--- a/tests/language_2/switch/bad_case_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test reporting a compile-time error if case expressions do not all have
-// the same type or are of type double.
-
-import "package:expect/expect.dart";
-
-void main() {
-  Expect.equals("IV", caesarSays(4));
-  Expect.equals(null, caesarSays(2));
-  Expect.equals(null, archimedesSays(3.14));
-}
-
-caesarSays(n) {
-  switch (n) {
-    case 1:
-      return "I";
-    case 4:
-      return "IV";
-    case "M":
-    //   ^^^
-    // [analyzer] COMPILE_TIME_ERROR.INCONSISTENT_CASE_EXPRESSION_TYPES
-      return 1000;
-  }
-  return null;
-}
-
-archimedesSays(n) {
-  switch (n) {
-//^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CASE_EXPRESSION_TYPE_IMPLEMENTS_EQUALS
-    case 3.14:
-    //   ^
-    // [cfe] Case expression '3.14' does not have a primitive operator '=='.
-      return "Pi";
-    case 2.71828:
-    //   ^
-    // [cfe] Case expression '2.71828' does not have a primitive operator '=='.
-      return "Huh?";
-  }
-  return null;
-}
diff --git a/tests/language_2/switch/case_expression_with_assignment_runtime_test.dart b/tests/language_2/switch/case_expression_with_assignment_runtime_test.dart
deleted file mode 100644
index 73372b7698f..00000000000
--- a/tests/language_2/switch/case_expression_with_assignment_runtime_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Regression test for crash in VM parser (issue 29370).
-
-import "package:expect/expect.dart";
-
-const ERROR_A = 0;
-const ERROR_B = 1;
-
-errorToString(error) {
-  switch (error) {
-    case ERROR_A:
-      return "ERROR_A";
-
-    case ERROR_B:
-      return "ERROR_B";
-    default:
-      return "Unknown error";
-  }
-}
-
-main() {
-  Expect.equals(errorToString(ERROR_A), "ERROR_A");
-  Expect.equals(errorToString(ERROR_B), "ERROR_B");
-  Expect.equals(errorToString(55), "Unknown error");
-}
diff --git a/tests/language_2/switch/case_expression_with_assignment_test.dart b/tests/language_2/switch/case_expression_with_assignment_test.dart
deleted file mode 100644
index 30c03646650..00000000000
--- a/tests/language_2/switch/case_expression_with_assignment_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for crash in VM parser (issue 29370).
-
-import "package:expect/expect.dart";
-
-const ERROR_A = 0;
-const ERROR_B = 1;
-
-errorToString(error) {
-  switch (error) {
-    case ERROR_A:
-      return "ERROR_A";
-    case ERROR_B = 1:
-    //   ^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_CONST
-    //   ^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.NON_CONSTANT_CASE_EXPRESSION
-    // [cfe] Setter not found: 'ERROR_B'.
-    case ERROR_B:
-      return "ERROR_B";
-    default:
-      return "Unknown error";
-  }
-}
-
-main() {
-  Expect.equals(errorToString(ERROR_A), "ERROR_A");
-  Expect.equals(errorToString(ERROR_B), "ERROR_B");
-  Expect.equals(errorToString(55), "Unknown error");
-}
diff --git a/tests/language_2/switch/case_runtime_test.dart b/tests/language_2/switch/case_runtime_test.dart
deleted file mode 100644
index f25ac4307cf..00000000000
--- a/tests/language_2/switch/case_runtime_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class A {
-  const A();
-  const factory A.B() = B;
-  const factory A.C() = C;
-  const factory A.C2() = D;
-}
-
-class B implements A {
-  const B();
-
-
-}
-
-class C implements D {
-  final int x;
-  const C() : x = 0;
-  const C.fromD() : x = 1;
-}
-
-class D implements A {
-  int get x => 0;
-  const factory D() = C.fromD;
-}
-
-main() {
-  switch (new B()) {
-
-  }
-
-  switch (new C()) {
-    case const C():
-      Expect.fail("bad switch");
-      break;
-    case const A.C():
-      Expect.fail("bad switch");
-      break;
-    case const A.C2():
-      Expect.fail("bad switch");
-      break;
-
-  }
-
-  switch (new A()) {
-    case const A():
-      Expect.fail("bad switch");
-      break;
-
-  }
-}
diff --git a/tests/language_2/switch/case_static_const_test.dart b/tests/language_2/switch/case_static_const_test.dart
deleted file mode 100644
index d6a0007a451..00000000000
--- a/tests/language_2/switch/case_static_const_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  static const S = 'A.S';
-}
-
-const S = 'S';
-
-foo(var p) {
-  switch (p) {
-    case S:
-      break;
-    case A.S:
-      break;
-    case 'abc':
-      break;
-  }
-}
-
-main() {
-  foo('p');
-}
diff --git a/tests/language_2/switch/case_test.dart b/tests/language_2/switch/case_test.dart
deleted file mode 100644
index fa519fd0709..00000000000
--- a/tests/language_2/switch/case_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  const A();
-  const factory A.B() = B;
-  const factory A.C() = C;
-  const factory A.C2() = D;
-}
-
-class B implements A {
-  const B();
-
-  operator ==(o) => true;
-}
-
-class C implements D {
-  final int x;
-  const C() : x = 0;
-  const C.fromD() : x = 1;
-}
-
-class D implements A {
-  int get x => 0;
-  const factory D() = C.fromD;
-}
-
-main() {
-  switch (new B()) {
-//^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CASE_EXPRESSION_TYPE_IMPLEMENTS_EQUALS
-    case const A.B(): Expect.fail("bad switch"); break;
-    //         ^
-    // [cfe] Case expression 'B {}' does not have a primitive operator '=='.
-  }
-
-  switch (new C()) {
-    case const C():
-      Expect.fail("bad switch");
-      break;
-    case const A.C():
-      Expect.fail("bad switch");
-      break;
-    case const A.C2():
-      Expect.fail("bad switch");
-      break;
-    case const A(): Expect.fail("bad switch"); break;
-    //   ^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.INCONSISTENT_CASE_EXPRESSION_TYPES
-  }
-
-  switch (new A()) {
-    case const A():
-      Expect.fail("bad switch");
-      break;
-    case const A.B(): Expect.fail("bad switch"); break;
-    //   ^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.INCONSISTENT_CASE_EXPRESSION_TYPES
-    //         ^
-    // [cfe] Case expression 'B {}' does not have a primitive operator '=='.
-  }
-}
diff --git a/tests/language_2/switch/case_warn_test.dart b/tests/language_2/switch/case_warn_test.dart
deleted file mode 100644
index 25b95168810..00000000000
--- a/tests/language_2/switch/case_warn_test.dart
+++ /dev/null
@@ -1,219 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test switch statement.
-
-// @dart = 2.9
-
-// Tests some switch-case statements blocks that should and should not
-// cause static warnings.
-// This test is not testing runtime behavior, only static warnings.
-
-// None of the cases blocks should cause a warning.
-void testSwitch(int x) {
-  // Catch all control flow leaving the switch.
-  // Run switch in catch clause to check rethrow.
-  TRY:
-  try {
-    throw x;
-  } catch (x) {
-    // Add loop as break/continue target.
-    LOOP:
-    do {
-      switch (x) {
-        case 0:
-        case 1:
-          nop(x);
-          break; // Break switch.
-        case 2:
-          nop(x);
-          break LOOP;
-        case 3:
-          nop(x);
-          continue; // Continue loop.
-        case 4:
-          nop(x);
-          continue LOOP;
-        case 5:
-          nop(x);
-          continue LAST;
-        // Avoid warning for "return;"" and "return e;" in same function.
-        case 6: //     //# retnon: ok
-          nop(x); //   //# retnon: continued
-          return; //   //# retnon: continued
-        case 7: //     //# retval: ok
-          nop(x); //   //# retval: continued
-          return x; // //# retval: continued
-        case 8:
-          nop(x);
-          throw x;
-        case 9:
-          nop(x);
-          rethrow;
-        case 10:
-        case 11:
-          {
-            nop(x);
-            break; // Break switch.
-          }
-        case 12:
-          {
-            nop(x);
-            break LOOP;
-          }
-        case 13:
-          {
-            nop(x);
-            continue; // Continue loop.
-          }
-        case 14:
-          {
-            nop(x);
-            continue LOOP;
-          }
-        case 15:
-          {
-            nop(x);
-            continue LAST;
-          }
-        case 16: { //  //# retnon: continued
-          nop(x); //   //# retnon: continued
-          return; //   //# retnon: continued
-        } //           //# retnon: continued
-        case 17: { //  //# retval: continued
-          nop(x); //   //# retval: continued
-          return x; // //# retval: continued
-        } //           //# retval: continued
-        case 18:
-          {
-            nop(x);
-            throw x;
-          }
-        case 19:
-          {
-            nop(x);
-            rethrow;
-          }
-        LAST:
-        case 20:
-          {
-            nop(x);
-            // Fallthrough allowed on last statements.
-          }
-      }
-    } while (false);
-  } finally {
-    // Catch all control flow leaving the switch and ignore it.
-    // Use break instead of return to avoid warning for `return` and `return e`
-    // in same function.
-    break TRY;
-  }
-}
-
-// All these switch cases should cause warnings.
-void testSwitchWarn(x) {
-  // Catch all control flow from the switch and ignore it.
-  TRY:
-  try {
-    throw 0;
-  } catch (e) {
-    // Wrap in loop as target for continue/break.
-    LOOP:
-    do {
-      switch (x) {
-        case 0: //                         //# 01: compile-time error
-        case 1: { //                       //# 01: continued
-          { //                             //# 01: continued
-            nop(x); //                     //# 01: continued
-            break;  // Break switch. //    //# 01: continued
-          } //                             //# 01: continued
-        } //                               //# 01: continued
-        case 2: { //                       //# 02: compile-time error
-          { //                             //# 02: continued
-            nop(x); //                     //# 02: continued
-            break LOOP; //                 //# 02: continued
-          } //                             //# 02: continued
-        } //                               //# 02: continued
-        case 3: { //                       //# 03: compile-time error
-          { //                             //# 03: continued
-            nop(x); //                     //# 03: continued
-            continue; // Continue loop.    //# 03: continued
-          } //                             //# 03: continued
-        } //                               //# 03: continued
-        case 4: { //                       //# 04: compile-time error
-          { //                             //# 04: continued
-            nop(x); //                     //# 04: continued
-            continue LOOP; //              //# 04: continued
-          } //                             //# 04: continued
-        } //                               //# 04: continued
-        case 5: { //                       //# 05: compile-time error
-          { //                             //# 05: continued
-            nop(x); //                     //# 05: continued
-            continue LAST; //              //# 05: continued
-          } //                             //# 05: continued
-        } //                               //# 05: continued
-        case 6: { //                       //# 06: compile-time error
-          { //                             //# 06: continued
-            nop(x); //                     //# 06: continued
-            return; //                     //# 06: continued
-          } //                             //# 06: continued
-        } //                               //# 06: continued
-        case 7: { //                       //# 07: compile-time error
-          { //                             //# 07: continued
-            nop(x); //                     //# 07: continued
-            return x; //                   //# 07: continued
-          } //                             //# 07: continued
-        } //                               //# 07: continued
-        case 8: { //                       //# 08: compile-time error
-          { //                             //# 08: continued
-            nop(x); //                     //# 08: continued
-            throw x; //                    //# 08: continued
-          } //                             //# 08: continued
-        } //                               //# 08: continued
-        case 9: { //                       //# 09: compile-time error
-          { //                             //# 09: continued
-            nop(x); //                     //# 09: continued
-            rethrow; //                    //# 09: continued
-          } //                             //# 09: continued
-        } //                               //# 09: continued
-        case 10: //                        //# 10: compile-time error
-          while (true) break; //           //# 10: continued
-        case 11: //                        //# 11: compile-time error
-          do break; while (true); //       //# 11: continued
-        case 12: //                        //# 12: compile-time error
-          for (;;) break; //               //# 12: continued
-        case 13: //                        //# 13: compile-time error
-          for (var _ in []) break; //      //# 13: continued
-        case 14: //                        //# 14: compile-time error
-          if (x) break; else break; //     //# 14: continued
-        case 15: //                        //# 15: compile-time error
-          (throw 0); //                    //# 15: continued
-        case 16: //                        //# 16: compile-time error
-          nop(x); //      fallthrough. //  //# 16: continued
-        case 17: //                        //# 17: compile-time error
-          L: break; //                     //# 17: continued
-        LAST:
-        case 99:
-        // Last case can't cause static warning.
-      }
-    } while (false);
-  } finally {
-    // Catch all control flow leaving the switch and ignore it.
-    // Use break instead of return to avoid warning for `return` and `return e`
-    // in same function.
-    break TRY;
-  }
-}
-
-main() {
-  // Ensure that all the cases compile and run (even if they might throw).
-  for (int i = 0; i <= 20; i++) {
-    testSwitch(i); // Just make sure it runs.
-  }
-  for (int i = 0; i <= 18; i++) {
-    testSwitchWarn(i);
-  }
-}
-
-/// Don't make it obvious that a switch case isn't doing anything.
-void nop(x) {}
diff --git a/tests/language_2/switch/empty_block_case_test.dart b/tests/language_2/switch/empty_block_case_test.dart
deleted file mode 100644
index 83439271f94..00000000000
--- a/tests/language_2/switch/empty_block_case_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that a case with an empty block does not fall through.
-
-// VMOptions=
-// VMOptions=--force-switch-dispatch-type=0
-// VMOptions=--force-switch-dispatch-type=1
-// VMOptions=--force-switch-dispatch-type=2
-
-class EmptyBlockCaseTest {
-  static testMain() {
-    switch (1) {
-      case 1:
-//    ^^^^
-// [analyzer] COMPILE_TIME_ERROR.CASE_BLOCK_NOT_TERMINATED
-// [cfe] Switch case may fall through to the next case.
-        {}
-      case 2:
-        Expect.equals(true, false);
-    }
-  }
-}
-
-main() {
-  EmptyBlockCaseTest.testMain();
-}
diff --git a/tests/language_2/switch/fallthru_test.dart b/tests/language_2/switch/fallthru_test.dart
deleted file mode 100644
index e0b6f60caca..00000000000
--- a/tests/language_2/switch/fallthru_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-String test(int n) {
-  String result = "foo";
-  switch (n) {
-    case 0:
-      result = "zero";
-      break;
-    case 1:
-//  ^^^^
-// [analyzer] COMPILE_TIME_ERROR.CASE_BLOCK_NOT_TERMINATED
-// [cfe] Switch case may fall through to the next case.
-      result = "one";
-    // fall-through, error if case is non-empty
-    case 9:
-      result = "nine";
-    // No error at end of last switch case.
-  }
-  return result;
-}
-
-main() {
-  Expect.equals("zero", test(0));
-  Expect.equals("nine", test(1));
-  Expect.equals("nine", test(9));
-  Expect.equals("foo", test(99));
-}
diff --git a/tests/language_2/switch/infinite_switch_label_test.dart b/tests/language_2/switch/infinite_switch_label_test.dart
deleted file mode 100644
index 2ddfad61bc6..00000000000
--- a/tests/language_2/switch/infinite_switch_label_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test nested switch statement using labels.
-
-// VMOptions=
-// VMOptions=--force-switch-dispatch-type=0
-// VMOptions=--force-switch-dispatch-type=1
-// VMOptions=--force-switch-dispatch-type=2
-
-library nested_switch_label;
-
-import "package:expect/expect.dart";
-
-void main() {
-  Expect.throws(() => doSwitch(0), (list) {
-    Expect.listEquals([0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0], list);
-    return true;
-  });
-  Expect.throws(() => doSwitch(2), (list) {
-    Expect.listEquals([2, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0], list);
-    return true;
-  });
-}
-
-void doSwitch(int target) {
-  List list = [];
-  switch (target) {
-    l0:
-    case 0:
-      if (list.length > 10) throw list;
-      list.add(0);
-      continue l1;
-    l1:
-    case 1:
-      if (list.length > 10) throw list;
-      list.add(1);
-      continue l0;
-    default:
-      list.add(2);
-      continue l1;
-  }
-}
diff --git a/tests/language_2/switch/label2_test.dart b/tests/language_2/switch/label2_test.dart
deleted file mode 100644
index 4c2dbb6fda8..00000000000
--- a/tests/language_2/switch/label2_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test switch statement using labels.
-
-// VMOptions=
-// VMOptions=--force-switch-dispatch-type=0
-// VMOptions=--force-switch-dispatch-type=1
-// VMOptions=--force-switch-dispatch-type=2
-
-import 'package:expect/expect.dart';
-
-void main() {
-  doSwitch(0, [0, 2]);
-  doSwitch(1, [1]);
-  doSwitch(2, [2]);
-  doSwitch(3, [3, 1]);
-}
-
-void doSwitch(int target, List expect) {
-  List list = [];
-  switch (target) {
-    case 0:
-      list.add(0);
-      continue case2;
-    case1:
-    case 1:
-      list.add(1);
-      break;
-    case2:
-    case 2:
-      list.add(2);
-      break;
-    case 3:
-      list.add(3);
-      continue case1;
-  }
-  Expect.listEquals(expect, list);
-}
diff --git a/tests/language_2/switch/label3_test.dart b/tests/language_2/switch/label3_test.dart
deleted file mode 100644
index e12dc1e2e05..00000000000
--- a/tests/language_2/switch/label3_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-enum Color { red, green, blue }
-
-enum Taste { sweet, sour, salty, bitter, umami }
-
-void main() {
-  Expect.equals(getValue(Taste.sweet, Color.blue), 1);
-  Expect.equals(getValue(Taste.bitter, Color.blue), 1);
-  Expect.equals(getValue(Taste.salty, Color.red), 2);
-  Expect.equals(getValue(Taste.salty, Color.blue), 4);
-  Expect.equals(getValue(Taste.salty, Color.green), 3);
-  Expect.equals(getValue(Taste.umami, Color.red), 4);
-}
-
-int getValue(Taste taste, Color color) {
-  switch (taste) {
-    case Taste.sweet:
-    case Taste.sour:
-    case Taste.bitter:
-      return 1;
-    case Taste.salty:
-      switch (color) {
-        case Color.red:
-          return 2;
-        case Color.blue:
-          continue LABEL;
-        case Color.green:
-          return 3;
-      }
-      throw Exception('Invalid state.');
-    LABEL:
-    case Taste.umami:
-      return 4;
-  }
-}
diff --git a/tests/language_2/switch/label_test.dart b/tests/language_2/switch/label_test.dart
deleted file mode 100644
index d67bd328886..00000000000
--- a/tests/language_2/switch/label_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test switch statement using labels.
-
-// @dart = 2.9
-
-// VMOptions=
-// VMOptions=--force-switch-dispatch-type=0
-// VMOptions=--force-switch-dispatch-type=1
-// VMOptions=--force-switch-dispatch-type=2
-
-import "package:expect/expect.dart";
-
-class Switcher {
-  Switcher() {}
-
-  say1(sound) {
-    var x = 0;
-    switch (sound) {
-      MOO:
-      case "moo":
-        x = 100;
-        break;
-      case "woof":
-        x = 200;
-        continue MOO;
-      default:
-        x = 300;
-        break;
-    }
-    return x;
-  }
-
-  say2(sound) {
-    var x = 0;
-    switch (sound) {
-      WOOF:
-      case "woof":
-        x = 200;
-        break;
-      case "moo":
-        x = 100;
-        continue WOOF;
-      default:
-        x = 300;
-        break;
-    }
-    return x;
-  }
-
-  // forward label to outer switch
-  say3(animal, sound) {
-    var x = 0;
-    switch (animal) {
-      case "cow":
-        switch (sound) {
-          case "moo":
-            x = 100;
-            break;
-          case "muh":
-            x = 200;
-            break;
-          default:
-            continue NIX_UNDERSTAND;
-        }
-        break;
-      case "dog":
-        if (sound == "woof") {
-          x = 300;
-        } else {
-          continue NIX_UNDERSTAND;
-        }
-        break;
-      NIX_UNDERSTAND:
-      case "unicorn":
-        x = 400;
-        break;
-      default:
-        x = 500;
-        break;
-    }
-    return x;
-  }
-}
-
-class SwitchLabelTest {
-  static testMain() {
-    Switcher s = new Switcher();
-    Expect.equals(100, s.say1("moo"));
-    Expect.equals(100, s.say1("woof"));
-    Expect.equals(300, s.say1("cockadoodledoo"));
-
-    Expect.equals(200, s.say2("moo"));
-    Expect.equals(200, s.say2("woof"));
-    Expect.equals(300, s.say2("")); // Dead unicorn says nothing.
-
-    Expect.equals(100, s.say3("cow", "moo"));
-    Expect.equals(200, s.say3("cow", "muh"));
-    Expect.equals(400, s.say3("cow", "boeh")); // Don't ask.
-    Expect.equals(300, s.say3("dog", "woof"));
-    Expect.equals(400, s.say3("dog", "boj")); // Ĉu vi parolas Esperanton?
-    Expect.equals(400, s.say3("unicorn", "")); // Still dead.
-    Expect.equals(500, s.say3("angry bird", "whoooo"));
-  }
-}
-
-main() {
-  SwitchLabelTest.testMain();
-}
diff --git a/tests/language_2/switch/nested_switch_label_test.dart b/tests/language_2/switch/nested_switch_label_test.dart
deleted file mode 100644
index 1d1b2b50f38..00000000000
--- a/tests/language_2/switch/nested_switch_label_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test nested switch statement using labels.
-
-// VMOptions=
-// VMOptions=--force-switch-dispatch-type=0
-// VMOptions=--force-switch-dispatch-type=1
-// VMOptions=--force-switch-dispatch-type=2
-
-library nested_switch_label;
-
-import "package:expect/expect.dart";
-
-void main() {
-  doSwitch(0, ['0', '2:0', '1', 'default']);
-  doSwitch(2, ['2:2', '2:1', '2', '1', 'default']);
-}
-
-void doSwitch(int target, List expect) {
-  List list = [];
-  switch (target) {
-    outer0:
-    case 0:
-      list.add('0');
-      continue outer2;
-    outer1:
-    case 1:
-      list.add('1');
-      continue outerDefault;
-    outer2:
-    case 2:
-      switch (target) {
-        inner0:
-        case 0:
-          list.add('2:0');
-          continue outer1;
-        inner2:
-        case 2:
-          list.add('2:2');
-          continue inner1;
-        inner1:
-        case 1:
-          list.add('2:1');
-      }
-      list.add('2');
-      continue outer1;
-    outerDefault:
-    default:
-      list.add('default');
-  }
-  Expect.listEquals(expect, list);
-}
diff --git a/tests/language_2/switch/scope_test.dart b/tests/language_2/switch/scope_test.dart
deleted file mode 100644
index c36ec4a8ea7..00000000000
--- a/tests/language_2/switch/scope_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that a new scope is introduced for each switch case.
-
-// @dart = 2.9
-
-// VMOptions=
-// VMOptions=--force-switch-dispatch-type=0
-// VMOptions=--force-switch-dispatch-type=1
-// VMOptions=--force-switch-dispatch-type=2
-
-import "package:expect/expect.dart";
-
-class SwitchScopeTest {
-  static testMain() {
-    switch (1) {
-      case 1:
-        final v = 1;
-        break;
-      case 2:
-        final v = 2;
-        Expect.equals(2, v);
-        break;
-      default:
-        final v = 3;
-        break;
-    }
-  }
-}
-
-main() {
-  SwitchScopeTest.testMain();
-}
diff --git a/tests/language_2/switch/switch1_test.dart b/tests/language_2/switch/switch1_test.dart
deleted file mode 100644
index f461c0dd52b..00000000000
--- a/tests/language_2/switch/switch1_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Check that default clause must be last case.
-
-main() {
-  var a = 5;
-  var x;
-  S: switch (a) {
-    case 1: x = 1; break;
-    case 6: x = 2; break S;
-    default:
-//  ^
-// [cfe] Switch case may fall through to the next case.
-    case 8:  break;
-//  ^^^^
-// [analyzer] SYNTACTIC_ERROR.SWITCH_HAS_CASE_AFTER_DEFAULT_CASE
-// [cfe] The default case should be the last case in a switch statement.
-  }
-  return a;
-}
diff --git a/tests/language_2/switch/switch3_test.dart b/tests/language_2/switch/switch3_test.dart
deleted file mode 100644
index 0b3d5bf6755..00000000000
--- a/tests/language_2/switch/switch3_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Check that 'continue' to switch statement is illegal.
-
-main() {
-  var a = 5;
-  var x;
-  switch (a) {
-    case 1: x = 1; break;
-    case 6: x = 2; continue;
-//  ^
-// [cfe] Switch case may fall through to the next case.
-//                 ^^^^^^^^
-// [analyzer] SYNTACTIC_ERROR.CONTINUE_WITHOUT_LABEL_IN_CASE
-// [cfe] A continue statement in a switch statement must have a label as a target.
-    case 8:  break;
-  }
-  return a;
-}
diff --git a/tests/language_2/switch/switch4_test.dart b/tests/language_2/switch/switch4_test.dart
deleted file mode 100644
index 31a30e74236..00000000000
--- a/tests/language_2/switch/switch4_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Discover unresolved case labels.
-
-main() {
-  var a = 5;
-  var x;
-  switch (a) {
-    case 1:
-      x = 1;
-      continue L;
-//    ^
-// [cfe] Can't find label 'L'.
-      //       ^
-      // [analyzer] COMPILE_TIME_ERROR.LABEL_UNDEFINED
-    case 6:
-      x = 2;
-      break;
-    case 8:
-      break;
-  }
-  return a;
-}
diff --git a/tests/language_2/switch/switch5_test.dart b/tests/language_2/switch/switch5_test.dart
deleted file mode 100644
index 8d22193939e..00000000000
--- a/tests/language_2/switch/switch5_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Break' to case label is illegal.
-
-main() {
-  var a = 5;
-  var x;
-  switch (a) {
-    L:
-    case 1:
-      x = 1;
-      break;
-    case 6:
-//  ^
-// [cfe] Switch case may fall through to the next case.
-      x = 2;
-      break L;
-      //    ^
-      // [analyzer] COMPILE_TIME_ERROR.BREAK_LABEL_ON_SWITCH_MEMBER
-      // [cfe] Can't break to 'L'.
-    default:
-      break;
-  }
-  return a;
-}
diff --git a/tests/language_2/switch/switch6_test.dart b/tests/language_2/switch/switch6_test.dart
deleted file mode 100644
index 9dad116c9ba..00000000000
--- a/tests/language_2/switch/switch6_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// The break is in the right scope, http://b/3428700 was agreed upon.
-
-// VMOptions=
-// VMOptions=--force-switch-dispatch-type=0
-// VMOptions=--force-switch-dispatch-type=1
-// VMOptions=--force-switch-dispatch-type=2
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Switch6Test {
-  static testMain() {
-    var a = 0;
-    var x = -1;
-    switch (a) {
-      case 0:
-        {
-          x = 0;
-          break;
-        }
-      case 1:
-        x = 1;
-        break;
-    }
-    Expect.equals(0, x);
-  }
-}
-
-main() {
-  Switch6Test.testMain();
-}
diff --git a/tests/language_2/switch/switch7_test.dart b/tests/language_2/switch/switch7_test.dart
deleted file mode 100644
index e4ffb710f3e..00000000000
--- a/tests/language_2/switch/switch7_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Illegal to reference a labeled case statement with break.
-
-main() {
-  var x = 1;
-  L:
-  while (true) {
-    switch (x) {
-      L:
-      case 1: // Shadowing another label is OK.
-        break L; // Illegal, can't reference labeled case from break.
-        //    ^
-        // [analyzer] COMPILE_TIME_ERROR.BREAK_LABEL_ON_SWITCH_MEMBER
-        // [cfe] Can't break to 'L'.
-    }
-  }
-}
diff --git a/tests/language_2/switch/switch8_test.dart b/tests/language_2/switch/switch8_test.dart
deleted file mode 100644
index 91e658ed79a..00000000000
--- a/tests/language_2/switch/switch8_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to not generate code for
-// compile-time constants only seen in case expressions.
-
-class A {
-  const A();
-}
-
-main() {
-  switch (new List.filled(1, null)[0]) {
-    case const A():
-      throw 'Test failed';
-  }
-}
diff --git a/tests/language_2/switch/switch_test.dart b/tests/language_2/switch/switch_test.dart
deleted file mode 100644
index f1908065bad..00000000000
--- a/tests/language_2/switch/switch_test.dart
+++ /dev/null
@@ -1,176 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test switch statement.
-
-// VMOptions=
-// VMOptions=--force-switch-dispatch-type=0
-// VMOptions=--force-switch-dispatch-type=1
-// VMOptions=--force-switch-dispatch-type=2
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Switcher {
-  Switcher() {}
-
-  test1(val) {
-    var x = 0;
-    switch (val) {
-      case 1:
-        x = 100;
-        break;
-      case 2:
-      case 3:
-        x = 200;
-        break;
-      case 4:
-      default:
-        {
-          x = 400;
-          break;
-        }
-    }
-    return x;
-  }
-
-  test2(val) {
-    switch (val) {
-      case 1:
-        return 200;
-      default:
-        return 400;
-    }
-  }
-}
-
-class SwitchTest {
-  static testMain() {
-    Switcher s = new Switcher();
-    Expect.equals(100, s.test1(1));
-    Expect.equals(200, s.test1(2));
-    Expect.equals(200, s.test1(3));
-    Expect.equals(400, s.test1(4));
-    Expect.equals(400, s.test1(5));
-
-    Expect.equals(200, s.test2(1));
-    Expect.equals(400, s.test2(2));
-  }
-}
-
-class Enum {
-  static const Enum e1 = const Enum(1);
-  static const Enum e2 = const Enum(2);
-  static const Enum e3 = const Enum(3);
-  final int id;
-  const Enum(this.id);
-}
-
-void testSwitchEnum(Enum input, int expect) {
-  int result = null;
-  switch (input) {
-    case Enum.e1:
-      result = 10;
-      break;
-    case Enum.e2:
-      result = 20;
-      break;
-    case Enum.e3:
-      result = 30;
-      break;
-    default:
-      result = 40;
-  }
-  Expect.equals(expect, result);
-}
-
-const int ic1 = 1;
-const int ic2 = 2;
-void testSwitchIntExpression(int input, int expect) {
-  int result = null;
-  switch (input) {
-    case 1 + 1: // 2
-    case ic1 + 2: // 3
-      result = 11;
-      break;
-    case ic2 * 2: // 4
-    case 1 * 5: // 5
-      result = 21;
-      break;
-    case ic1 % ic2 + 5: // 6
-      result = 31;
-      break;
-  }
-  Expect.equals(expect, result);
-}
-
-void testSwitchBool(bool input, int expect) {
-  int result = null;
-  switch (input) {
-    case true:
-      result = 12;
-      break;
-    case false:
-      result = 22;
-  }
-  Expect.equals(expect, result);
-}
-
-void testSwitchString(String input, int expect) {
-  int result = null;
-  switch (input) {
-    case 'one':
-      result = 1;
-      break;
-    case 'two':
-      result = 2;
-      break;
-  }
-  Expect.equals(expect, result);
-}
-
-switchConstString() {
-  const c = 'a';
-  switch (c) {
-    case 'a':
-      return 'aa';
-    case 'b':
-      return 'bb';
-    case 'c':
-      return 'cc';
-    case 'd':
-      return 'dd';
-    case 'e':
-      return 'ee';
-    case 'f':
-      return 'ff';
-  }
-}
-
-main() {
-  SwitchTest.testMain();
-
-  testSwitchEnum(Enum.e1, 10);
-  testSwitchEnum(Enum.e2, 20);
-  testSwitchEnum(Enum.e3, 30);
-  testSwitchEnum(null, 40);
-
-  testSwitchIntExpression(2, 11);
-  testSwitchIntExpression(3, 11);
-  testSwitchIntExpression(4, 21);
-  testSwitchIntExpression(5, 21);
-  testSwitchIntExpression(6, 31);
-  testSwitchIntExpression(7, null);
-
-  testSwitchBool(true, 12);
-  testSwitchBool(false, 22);
-
-  testSwitchString(null, null);
-  testSwitchString('one', 1);
-  testSwitchString('two', 2);
-  testSwitchString('three', null);
-
-  Expect.equals('aa', switchConstString());
-}
diff --git a/tests/language_2/switch/try_catch_test.dart b/tests/language_2/switch/try_catch_test.dart
deleted file mode 100644
index d95e4760df9..00000000000
--- a/tests/language_2/switch/try_catch_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 18869: Check that try-catch is working correctly
-// inside switch-case clauses.
-
-// VMOptions=
-// VMOptions=--force-switch-dispatch-type=0
-// VMOptions=--force-switch-dispatch-type=1
-// VMOptions=--force-switch-dispatch-type=2
-
-import "package:expect/expect.dart";
-
-test_switch() {
-  switch (0) {
-    _0:
-    case 0:
-      print("_0");
-      continue _5;
-    _1:
-    case 1:
-      try {
-        print("bunny");
-        continue _6;
-      } catch (e) {}
-      break;
-    _5:
-    case 5:
-      print("_5");
-      continue _6;
-    _6:
-    case 6:
-      print("_6");
-      throw 555;
-  }
-}
-
-main() {
-  Expect.throws(() => test_switch(), (e) => e == 555);
-}
diff --git a/tests/language_2/symbol/conflict_test.dart b/tests/language_2/symbol/conflict_test.dart
deleted file mode 100644
index b988b43cb7e..00000000000
--- a/tests/language_2/symbol/conflict_test.dart
+++ /dev/null
@@ -1,2817 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that const symbols are only equal to the symbol they represent.
-
-import 'package:expect/expect.dart';
-
-class A {
-  noSuchMethod(invocation) {
-    Expect.isFalse(oneAndTwoCharacterSymbols.contains(invocation.memberName));
-  }
-}
-
-main() {
-  var a = new A() as dynamic;
-  a.foo = 23;
-  a.foo;
-  a.bar;
-  a.longer;
-  a.anotherOne;
-  a.add(1);
-  a.isEmpty;
-}
-
-/**
- The following constant was generated with the following program:
-
-   const RESERVED_WORDS = const [
-     'assert', 'break', 'case', 'catch', 'class', 'const', 'continue',
-     'default', 'do', 'else', 'enum', 'extends', 'false', 'final',
-     'finally', 'for', 'if', 'in', 'is', 'new', 'null', 'rethrow',
-     'return', 'super', 'switch', 'this', 'throw', 'true', 'try',
-     'var', 'void', 'while', 'with'];
-
-   get chars sync* {
-      for (int i = "a".codeUnitAt(0); i <= "z".codeUnitAt(0); i++) {
-        yield new String.fromCharCodes([i]);
-      }
-      for (int i = "A".codeUnitAt(0); i <= "Z".codeUnitAt(0); i++) {
-        yield new String.fromCharCodes([i]);
-      }
-    }
-
-    main() {
-      print("const oneAndTwoCharacterSymbols = const [");
-      // One character symbols.
-      for (String c in chars) {
-        print("  const Symbol('$c'),");
-      }
-      // Two character symbols.
-      for (String c1 in chars) {
-        for (String c2 in chars) {
-          if (!RESERVED_WORDS.contains('$c1$c2')) {
-            print("  const Symbol('$c1$c2'),");
-          }
-        }
-      }
-      print("];");
-    }
-*/
-const oneAndTwoCharacterSymbols = const [
-  const Symbol('a'),
-  const Symbol('b'),
-  const Symbol('c'),
-  const Symbol('d'),
-  const Symbol('e'),
-  const Symbol('f'),
-  const Symbol('g'),
-  const Symbol('h'),
-  const Symbol('i'),
-  const Symbol('j'),
-  const Symbol('k'),
-  const Symbol('l'),
-  const Symbol('m'),
-  const Symbol('n'),
-  const Symbol('o'),
-  const Symbol('p'),
-  const Symbol('q'),
-  const Symbol('r'),
-  const Symbol('s'),
-  const Symbol('t'),
-  const Symbol('u'),
-  const Symbol('v'),
-  const Symbol('w'),
-  const Symbol('x'),
-  const Symbol('y'),
-  const Symbol('z'),
-  const Symbol('A'),
-  const Symbol('B'),
-  const Symbol('C'),
-  const Symbol('D'),
-  const Symbol('E'),
-  const Symbol('F'),
-  const Symbol('G'),
-  const Symbol('H'),
-  const Symbol('I'),
-  const Symbol('J'),
-  const Symbol('K'),
-  const Symbol('L'),
-  const Symbol('M'),
-  const Symbol('N'),
-  const Symbol('O'),
-  const Symbol('P'),
-  const Symbol('Q'),
-  const Symbol('R'),
-  const Symbol('S'),
-  const Symbol('T'),
-  const Symbol('U'),
-  const Symbol('V'),
-  const Symbol('W'),
-  const Symbol('X'),
-  const Symbol('Y'),
-  const Symbol('Z'),
-  const Symbol('aa'),
-  const Symbol('ab'),
-  const Symbol('ac'),
-  const Symbol('ad'),
-  const Symbol('ae'),
-  const Symbol('af'),
-  const Symbol('ag'),
-  const Symbol('ah'),
-  const Symbol('ai'),
-  const Symbol('aj'),
-  const Symbol('ak'),
-  const Symbol('al'),
-  const Symbol('am'),
-  const Symbol('an'),
-  const Symbol('ao'),
-  const Symbol('ap'),
-  const Symbol('aq'),
-  const Symbol('ar'),
-  const Symbol('as'),
-  const Symbol('at'),
-  const Symbol('au'),
-  const Symbol('av'),
-  const Symbol('aw'),
-  const Symbol('ax'),
-  const Symbol('ay'),
-  const Symbol('az'),
-  const Symbol('aA'),
-  const Symbol('aB'),
-  const Symbol('aC'),
-  const Symbol('aD'),
-  const Symbol('aE'),
-  const Symbol('aF'),
-  const Symbol('aG'),
-  const Symbol('aH'),
-  const Symbol('aI'),
-  const Symbol('aJ'),
-  const Symbol('aK'),
-  const Symbol('aL'),
-  const Symbol('aM'),
-  const Symbol('aN'),
-  const Symbol('aO'),
-  const Symbol('aP'),
-  const Symbol('aQ'),
-  const Symbol('aR'),
-  const Symbol('aS'),
-  const Symbol('aT'),
-  const Symbol('aU'),
-  const Symbol('aV'),
-  const Symbol('aW'),
-  const Symbol('aX'),
-  const Symbol('aY'),
-  const Symbol('aZ'),
-  const Symbol('ba'),
-  const Symbol('bb'),
-  const Symbol('bc'),
-  const Symbol('bd'),
-  const Symbol('be'),
-  const Symbol('bf'),
-  const Symbol('bg'),
-  const Symbol('bh'),
-  const Symbol('bi'),
-  const Symbol('bj'),
-  const Symbol('bk'),
-  const Symbol('bl'),
-  const Symbol('bm'),
-  const Symbol('bn'),
-  const Symbol('bo'),
-  const Symbol('bp'),
-  const Symbol('bq'),
-  const Symbol('br'),
-  const Symbol('bs'),
-  const Symbol('bt'),
-  const Symbol('bu'),
-  const Symbol('bv'),
-  const Symbol('bw'),
-  const Symbol('bx'),
-  const Symbol('by'),
-  const Symbol('bz'),
-  const Symbol('bA'),
-  const Symbol('bB'),
-  const Symbol('bC'),
-  const Symbol('bD'),
-  const Symbol('bE'),
-  const Symbol('bF'),
-  const Symbol('bG'),
-  const Symbol('bH'),
-  const Symbol('bI'),
-  const Symbol('bJ'),
-  const Symbol('bK'),
-  const Symbol('bL'),
-  const Symbol('bM'),
-  const Symbol('bN'),
-  const Symbol('bO'),
-  const Symbol('bP'),
-  const Symbol('bQ'),
-  const Symbol('bR'),
-  const Symbol('bS'),
-  const Symbol('bT'),
-  const Symbol('bU'),
-  const Symbol('bV'),
-  const Symbol('bW'),
-  const Symbol('bX'),
-  const Symbol('bY'),
-  const Symbol('bZ'),
-  const Symbol('ca'),
-  const Symbol('cb'),
-  const Symbol('cc'),
-  const Symbol('cd'),
-  const Symbol('ce'),
-  const Symbol('cf'),
-  const Symbol('cg'),
-  const Symbol('ch'),
-  const Symbol('ci'),
-  const Symbol('cj'),
-  const Symbol('ck'),
-  const Symbol('cl'),
-  const Symbol('cm'),
-  const Symbol('cn'),
-  const Symbol('co'),
-  const Symbol('cp'),
-  const Symbol('cq'),
-  const Symbol('cr'),
-  const Symbol('cs'),
-  const Symbol('ct'),
-  const Symbol('cu'),
-  const Symbol('cv'),
-  const Symbol('cw'),
-  const Symbol('cx'),
-  const Symbol('cy'),
-  const Symbol('cz'),
-  const Symbol('cA'),
-  const Symbol('cB'),
-  const Symbol('cC'),
-  const Symbol('cD'),
-  const Symbol('cE'),
-  const Symbol('cF'),
-  const Symbol('cG'),
-  const Symbol('cH'),
-  const Symbol('cI'),
-  const Symbol('cJ'),
-  const Symbol('cK'),
-  const Symbol('cL'),
-  const Symbol('cM'),
-  const Symbol('cN'),
-  const Symbol('cO'),
-  const Symbol('cP'),
-  const Symbol('cQ'),
-  const Symbol('cR'),
-  const Symbol('cS'),
-  const Symbol('cT'),
-  const Symbol('cU'),
-  const Symbol('cV'),
-  const Symbol('cW'),
-  const Symbol('cX'),
-  const Symbol('cY'),
-  const Symbol('cZ'),
-  const Symbol('da'),
-  const Symbol('db'),
-  const Symbol('dc'),
-  const Symbol('dd'),
-  const Symbol('de'),
-  const Symbol('df'),
-  const Symbol('dg'),
-  const Symbol('dh'),
-  const Symbol('di'),
-  const Symbol('dj'),
-  const Symbol('dk'),
-  const Symbol('dl'),
-  const Symbol('dm'),
-  const Symbol('dn'),
-  const Symbol('dp'),
-  const Symbol('dq'),
-  const Symbol('dr'),
-  const Symbol('ds'),
-  const Symbol('dt'),
-  const Symbol('du'),
-  const Symbol('dv'),
-  const Symbol('dw'),
-  const Symbol('dx'),
-  const Symbol('dy'),
-  const Symbol('dz'),
-  const Symbol('dA'),
-  const Symbol('dB'),
-  const Symbol('dC'),
-  const Symbol('dD'),
-  const Symbol('dE'),
-  const Symbol('dF'),
-  const Symbol('dG'),
-  const Symbol('dH'),
-  const Symbol('dI'),
-  const Symbol('dJ'),
-  const Symbol('dK'),
-  const Symbol('dL'),
-  const Symbol('dM'),
-  const Symbol('dN'),
-  const Symbol('dO'),
-  const Symbol('dP'),
-  const Symbol('dQ'),
-  const Symbol('dR'),
-  const Symbol('dS'),
-  const Symbol('dT'),
-  const Symbol('dU'),
-  const Symbol('dV'),
-  const Symbol('dW'),
-  const Symbol('dX'),
-  const Symbol('dY'),
-  const Symbol('dZ'),
-  const Symbol('ea'),
-  const Symbol('eb'),
-  const Symbol('ec'),
-  const Symbol('ed'),
-  const Symbol('ee'),
-  const Symbol('ef'),
-  const Symbol('eg'),
-  const Symbol('eh'),
-  const Symbol('ei'),
-  const Symbol('ej'),
-  const Symbol('ek'),
-  const Symbol('el'),
-  const Symbol('em'),
-  const Symbol('en'),
-  const Symbol('eo'),
-  const Symbol('ep'),
-  const Symbol('eq'),
-  const Symbol('er'),
-  const Symbol('es'),
-  const Symbol('et'),
-  const Symbol('eu'),
-  const Symbol('ev'),
-  const Symbol('ew'),
-  const Symbol('ex'),
-  const Symbol('ey'),
-  const Symbol('ez'),
-  const Symbol('eA'),
-  const Symbol('eB'),
-  const Symbol('eC'),
-  const Symbol('eD'),
-  const Symbol('eE'),
-  const Symbol('eF'),
-  const Symbol('eG'),
-  const Symbol('eH'),
-  const Symbol('eI'),
-  const Symbol('eJ'),
-  const Symbol('eK'),
-  const Symbol('eL'),
-  const Symbol('eM'),
-  const Symbol('eN'),
-  const Symbol('eO'),
-  const Symbol('eP'),
-  const Symbol('eQ'),
-  const Symbol('eR'),
-  const Symbol('eS'),
-  const Symbol('eT'),
-  const Symbol('eU'),
-  const Symbol('eV'),
-  const Symbol('eW'),
-  const Symbol('eX'),
-  const Symbol('eY'),
-  const Symbol('eZ'),
-  const Symbol('fa'),
-  const Symbol('fb'),
-  const Symbol('fc'),
-  const Symbol('fd'),
-  const Symbol('fe'),
-  const Symbol('ff'),
-  const Symbol('fg'),
-  const Symbol('fh'),
-  const Symbol('fi'),
-  const Symbol('fj'),
-  const Symbol('fk'),
-  const Symbol('fl'),
-  const Symbol('fm'),
-  const Symbol('fn'),
-  const Symbol('fo'),
-  const Symbol('fp'),
-  const Symbol('fq'),
-  const Symbol('fr'),
-  const Symbol('fs'),
-  const Symbol('ft'),
-  const Symbol('fu'),
-  const Symbol('fv'),
-  const Symbol('fw'),
-  const Symbol('fx'),
-  const Symbol('fy'),
-  const Symbol('fz'),
-  const Symbol('fA'),
-  const Symbol('fB'),
-  const Symbol('fC'),
-  const Symbol('fD'),
-  const Symbol('fE'),
-  const Symbol('fF'),
-  const Symbol('fG'),
-  const Symbol('fH'),
-  const Symbol('fI'),
-  const Symbol('fJ'),
-  const Symbol('fK'),
-  const Symbol('fL'),
-  const Symbol('fM'),
-  const Symbol('fN'),
-  const Symbol('fO'),
-  const Symbol('fP'),
-  const Symbol('fQ'),
-  const Symbol('fR'),
-  const Symbol('fS'),
-  const Symbol('fT'),
-  const Symbol('fU'),
-  const Symbol('fV'),
-  const Symbol('fW'),
-  const Symbol('fX'),
-  const Symbol('fY'),
-  const Symbol('fZ'),
-  const Symbol('ga'),
-  const Symbol('gb'),
-  const Symbol('gc'),
-  const Symbol('gd'),
-  const Symbol('ge'),
-  const Symbol('gf'),
-  const Symbol('gg'),
-  const Symbol('gh'),
-  const Symbol('gi'),
-  const Symbol('gj'),
-  const Symbol('gk'),
-  const Symbol('gl'),
-  const Symbol('gm'),
-  const Symbol('gn'),
-  const Symbol('go'),
-  const Symbol('gp'),
-  const Symbol('gq'),
-  const Symbol('gr'),
-  const Symbol('gs'),
-  const Symbol('gt'),
-  const Symbol('gu'),
-  const Symbol('gv'),
-  const Symbol('gw'),
-  const Symbol('gx'),
-  const Symbol('gy'),
-  const Symbol('gz'),
-  const Symbol('gA'),
-  const Symbol('gB'),
-  const Symbol('gC'),
-  const Symbol('gD'),
-  const Symbol('gE'),
-  const Symbol('gF'),
-  const Symbol('gG'),
-  const Symbol('gH'),
-  const Symbol('gI'),
-  const Symbol('gJ'),
-  const Symbol('gK'),
-  const Symbol('gL'),
-  const Symbol('gM'),
-  const Symbol('gN'),
-  const Symbol('gO'),
-  const Symbol('gP'),
-  const Symbol('gQ'),
-  const Symbol('gR'),
-  const Symbol('gS'),
-  const Symbol('gT'),
-  const Symbol('gU'),
-  const Symbol('gV'),
-  const Symbol('gW'),
-  const Symbol('gX'),
-  const Symbol('gY'),
-  const Symbol('gZ'),
-  const Symbol('ha'),
-  const Symbol('hb'),
-  const Symbol('hc'),
-  const Symbol('hd'),
-  const Symbol('he'),
-  const Symbol('hf'),
-  const Symbol('hg'),
-  const Symbol('hh'),
-  const Symbol('hi'),
-  const Symbol('hj'),
-  const Symbol('hk'),
-  const Symbol('hl'),
-  const Symbol('hm'),
-  const Symbol('hn'),
-  const Symbol('ho'),
-  const Symbol('hp'),
-  const Symbol('hq'),
-  const Symbol('hr'),
-  const Symbol('hs'),
-  const Symbol('ht'),
-  const Symbol('hu'),
-  const Symbol('hv'),
-  const Symbol('hw'),
-  const Symbol('hx'),
-  const Symbol('hy'),
-  const Symbol('hz'),
-  const Symbol('hA'),
-  const Symbol('hB'),
-  const Symbol('hC'),
-  const Symbol('hD'),
-  const Symbol('hE'),
-  const Symbol('hF'),
-  const Symbol('hG'),
-  const Symbol('hH'),
-  const Symbol('hI'),
-  const Symbol('hJ'),
-  const Symbol('hK'),
-  const Symbol('hL'),
-  const Symbol('hM'),
-  const Symbol('hN'),
-  const Symbol('hO'),
-  const Symbol('hP'),
-  const Symbol('hQ'),
-  const Symbol('hR'),
-  const Symbol('hS'),
-  const Symbol('hT'),
-  const Symbol('hU'),
-  const Symbol('hV'),
-  const Symbol('hW'),
-  const Symbol('hX'),
-  const Symbol('hY'),
-  const Symbol('hZ'),
-  const Symbol('ia'),
-  const Symbol('ib'),
-  const Symbol('ic'),
-  const Symbol('id'),
-  const Symbol('ie'),
-  const Symbol('ig'),
-  const Symbol('ih'),
-  const Symbol('ii'),
-  const Symbol('ij'),
-  const Symbol('ik'),
-  const Symbol('il'),
-  const Symbol('im'),
-  const Symbol('io'),
-  const Symbol('ip'),
-  const Symbol('iq'),
-  const Symbol('ir'),
-  const Symbol('it'),
-  const Symbol('iu'),
-  const Symbol('iv'),
-  const Symbol('iw'),
-  const Symbol('ix'),
-  const Symbol('iy'),
-  const Symbol('iz'),
-  const Symbol('iA'),
-  const Symbol('iB'),
-  const Symbol('iC'),
-  const Symbol('iD'),
-  const Symbol('iE'),
-  const Symbol('iF'),
-  const Symbol('iG'),
-  const Symbol('iH'),
-  const Symbol('iI'),
-  const Symbol('iJ'),
-  const Symbol('iK'),
-  const Symbol('iL'),
-  const Symbol('iM'),
-  const Symbol('iN'),
-  const Symbol('iO'),
-  const Symbol('iP'),
-  const Symbol('iQ'),
-  const Symbol('iR'),
-  const Symbol('iS'),
-  const Symbol('iT'),
-  const Symbol('iU'),
-  const Symbol('iV'),
-  const Symbol('iW'),
-  const Symbol('iX'),
-  const Symbol('iY'),
-  const Symbol('iZ'),
-  const Symbol('ja'),
-  const Symbol('jb'),
-  const Symbol('jc'),
-  const Symbol('jd'),
-  const Symbol('je'),
-  const Symbol('jf'),
-  const Symbol('jg'),
-  const Symbol('jh'),
-  const Symbol('ji'),
-  const Symbol('jj'),
-  const Symbol('jk'),
-  const Symbol('jl'),
-  const Symbol('jm'),
-  const Symbol('jn'),
-  const Symbol('jo'),
-  const Symbol('jp'),
-  const Symbol('jq'),
-  const Symbol('jr'),
-  const Symbol('js'),
-  const Symbol('jt'),
-  const Symbol('ju'),
-  const Symbol('jv'),
-  const Symbol('jw'),
-  const Symbol('jx'),
-  const Symbol('jy'),
-  const Symbol('jz'),
-  const Symbol('jA'),
-  const Symbol('jB'),
-  const Symbol('jC'),
-  const Symbol('jD'),
-  const Symbol('jE'),
-  const Symbol('jF'),
-  const Symbol('jG'),
-  const Symbol('jH'),
-  const Symbol('jI'),
-  const Symbol('jJ'),
-  const Symbol('jK'),
-  const Symbol('jL'),
-  const Symbol('jM'),
-  const Symbol('jN'),
-  const Symbol('jO'),
-  const Symbol('jP'),
-  const Symbol('jQ'),
-  const Symbol('jR'),
-  const Symbol('jS'),
-  const Symbol('jT'),
-  const Symbol('jU'),
-  const Symbol('jV'),
-  const Symbol('jW'),
-  const Symbol('jX'),
-  const Symbol('jY'),
-  const Symbol('jZ'),
-  const Symbol('ka'),
-  const Symbol('kb'),
-  const Symbol('kc'),
-  const Symbol('kd'),
-  const Symbol('ke'),
-  const Symbol('kf'),
-  const Symbol('kg'),
-  const Symbol('kh'),
-  const Symbol('ki'),
-  const Symbol('kj'),
-  const Symbol('kk'),
-  const Symbol('kl'),
-  const Symbol('km'),
-  const Symbol('kn'),
-  const Symbol('ko'),
-  const Symbol('kp'),
-  const Symbol('kq'),
-  const Symbol('kr'),
-  const Symbol('ks'),
-  const Symbol('kt'),
-  const Symbol('ku'),
-  const Symbol('kv'),
-  const Symbol('kw'),
-  const Symbol('kx'),
-  const Symbol('ky'),
-  const Symbol('kz'),
-  const Symbol('kA'),
-  const Symbol('kB'),
-  const Symbol('kC'),
-  const Symbol('kD'),
-  const Symbol('kE'),
-  const Symbol('kF'),
-  const Symbol('kG'),
-  const Symbol('kH'),
-  const Symbol('kI'),
-  const Symbol('kJ'),
-  const Symbol('kK'),
-  const Symbol('kL'),
-  const Symbol('kM'),
-  const Symbol('kN'),
-  const Symbol('kO'),
-  const Symbol('kP'),
-  const Symbol('kQ'),
-  const Symbol('kR'),
-  const Symbol('kS'),
-  const Symbol('kT'),
-  const Symbol('kU'),
-  const Symbol('kV'),
-  const Symbol('kW'),
-  const Symbol('kX'),
-  const Symbol('kY'),
-  const Symbol('kZ'),
-  const Symbol('la'),
-  const Symbol('lb'),
-  const Symbol('lc'),
-  const Symbol('ld'),
-  const Symbol('le'),
-  const Symbol('lf'),
-  const Symbol('lg'),
-  const Symbol('lh'),
-  const Symbol('li'),
-  const Symbol('lj'),
-  const Symbol('lk'),
-  const Symbol('ll'),
-  const Symbol('lm'),
-  const Symbol('ln'),
-  const Symbol('lo'),
-  const Symbol('lp'),
-  const Symbol('lq'),
-  const Symbol('lr'),
-  const Symbol('ls'),
-  const Symbol('lt'),
-  const Symbol('lu'),
-  const Symbol('lv'),
-  const Symbol('lw'),
-  const Symbol('lx'),
-  const Symbol('ly'),
-  const Symbol('lz'),
-  const Symbol('lA'),
-  const Symbol('lB'),
-  const Symbol('lC'),
-  const Symbol('lD'),
-  const Symbol('lE'),
-  const Symbol('lF'),
-  const Symbol('lG'),
-  const Symbol('lH'),
-  const Symbol('lI'),
-  const Symbol('lJ'),
-  const Symbol('lK'),
-  const Symbol('lL'),
-  const Symbol('lM'),
-  const Symbol('lN'),
-  const Symbol('lO'),
-  const Symbol('lP'),
-  const Symbol('lQ'),
-  const Symbol('lR'),
-  const Symbol('lS'),
-  const Symbol('lT'),
-  const Symbol('lU'),
-  const Symbol('lV'),
-  const Symbol('lW'),
-  const Symbol('lX'),
-  const Symbol('lY'),
-  const Symbol('lZ'),
-  const Symbol('ma'),
-  const Symbol('mb'),
-  const Symbol('mc'),
-  const Symbol('md'),
-  const Symbol('me'),
-  const Symbol('mf'),
-  const Symbol('mg'),
-  const Symbol('mh'),
-  const Symbol('mi'),
-  const Symbol('mj'),
-  const Symbol('mk'),
-  const Symbol('ml'),
-  const Symbol('mm'),
-  const Symbol('mn'),
-  const Symbol('mo'),
-  const Symbol('mp'),
-  const Symbol('mq'),
-  const Symbol('mr'),
-  const Symbol('ms'),
-  const Symbol('mt'),
-  const Symbol('mu'),
-  const Symbol('mv'),
-  const Symbol('mw'),
-  const Symbol('mx'),
-  const Symbol('my'),
-  const Symbol('mz'),
-  const Symbol('mA'),
-  const Symbol('mB'),
-  const Symbol('mC'),
-  const Symbol('mD'),
-  const Symbol('mE'),
-  const Symbol('mF'),
-  const Symbol('mG'),
-  const Symbol('mH'),
-  const Symbol('mI'),
-  const Symbol('mJ'),
-  const Symbol('mK'),
-  const Symbol('mL'),
-  const Symbol('mM'),
-  const Symbol('mN'),
-  const Symbol('mO'),
-  const Symbol('mP'),
-  const Symbol('mQ'),
-  const Symbol('mR'),
-  const Symbol('mS'),
-  const Symbol('mT'),
-  const Symbol('mU'),
-  const Symbol('mV'),
-  const Symbol('mW'),
-  const Symbol('mX'),
-  const Symbol('mY'),
-  const Symbol('mZ'),
-  const Symbol('na'),
-  const Symbol('nb'),
-  const Symbol('nc'),
-  const Symbol('nd'),
-  const Symbol('ne'),
-  const Symbol('nf'),
-  const Symbol('ng'),
-  const Symbol('nh'),
-  const Symbol('ni'),
-  const Symbol('nj'),
-  const Symbol('nk'),
-  const Symbol('nl'),
-  const Symbol('nm'),
-  const Symbol('nn'),
-  const Symbol('no'),
-  const Symbol('np'),
-  const Symbol('nq'),
-  const Symbol('nr'),
-  const Symbol('ns'),
-  const Symbol('nt'),
-  const Symbol('nu'),
-  const Symbol('nv'),
-  const Symbol('nw'),
-  const Symbol('nx'),
-  const Symbol('ny'),
-  const Symbol('nz'),
-  const Symbol('nA'),
-  const Symbol('nB'),
-  const Symbol('nC'),
-  const Symbol('nD'),
-  const Symbol('nE'),
-  const Symbol('nF'),
-  const Symbol('nG'),
-  const Symbol('nH'),
-  const Symbol('nI'),
-  const Symbol('nJ'),
-  const Symbol('nK'),
-  const Symbol('nL'),
-  const Symbol('nM'),
-  const Symbol('nN'),
-  const Symbol('nO'),
-  const Symbol('nP'),
-  const Symbol('nQ'),
-  const Symbol('nR'),
-  const Symbol('nS'),
-  const Symbol('nT'),
-  const Symbol('nU'),
-  const Symbol('nV'),
-  const Symbol('nW'),
-  const Symbol('nX'),
-  const Symbol('nY'),
-  const Symbol('nZ'),
-  const Symbol('oa'),
-  const Symbol('ob'),
-  const Symbol('oc'),
-  const Symbol('od'),
-  const Symbol('oe'),
-  const Symbol('of'),
-  const Symbol('og'),
-  const Symbol('oh'),
-  const Symbol('oi'),
-  const Symbol('oj'),
-  const Symbol('ok'),
-  const Symbol('ol'),
-  const Symbol('om'),
-  const Symbol('on'),
-  const Symbol('oo'),
-  const Symbol('op'),
-  const Symbol('oq'),
-  const Symbol('or'),
-  const Symbol('os'),
-  const Symbol('ot'),
-  const Symbol('ou'),
-  const Symbol('ov'),
-  const Symbol('ow'),
-  const Symbol('ox'),
-  const Symbol('oy'),
-  const Symbol('oz'),
-  const Symbol('oA'),
-  const Symbol('oB'),
-  const Symbol('oC'),
-  const Symbol('oD'),
-  const Symbol('oE'),
-  const Symbol('oF'),
-  const Symbol('oG'),
-  const Symbol('oH'),
-  const Symbol('oI'),
-  const Symbol('oJ'),
-  const Symbol('oK'),
-  const Symbol('oL'),
-  const Symbol('oM'),
-  const Symbol('oN'),
-  const Symbol('oO'),
-  const Symbol('oP'),
-  const Symbol('oQ'),
-  const Symbol('oR'),
-  const Symbol('oS'),
-  const Symbol('oT'),
-  const Symbol('oU'),
-  const Symbol('oV'),
-  const Symbol('oW'),
-  const Symbol('oX'),
-  const Symbol('oY'),
-  const Symbol('oZ'),
-  const Symbol('pa'),
-  const Symbol('pb'),
-  const Symbol('pc'),
-  const Symbol('pd'),
-  const Symbol('pe'),
-  const Symbol('pf'),
-  const Symbol('pg'),
-  const Symbol('ph'),
-  const Symbol('pi'),
-  const Symbol('pj'),
-  const Symbol('pk'),
-  const Symbol('pl'),
-  const Symbol('pm'),
-  const Symbol('pn'),
-  const Symbol('po'),
-  const Symbol('pp'),
-  const Symbol('pq'),
-  const Symbol('pr'),
-  const Symbol('ps'),
-  const Symbol('pt'),
-  const Symbol('pu'),
-  const Symbol('pv'),
-  const Symbol('pw'),
-  const Symbol('px'),
-  const Symbol('py'),
-  const Symbol('pz'),
-  const Symbol('pA'),
-  const Symbol('pB'),
-  const Symbol('pC'),
-  const Symbol('pD'),
-  const Symbol('pE'),
-  const Symbol('pF'),
-  const Symbol('pG'),
-  const Symbol('pH'),
-  const Symbol('pI'),
-  const Symbol('pJ'),
-  const Symbol('pK'),
-  const Symbol('pL'),
-  const Symbol('pM'),
-  const Symbol('pN'),
-  const Symbol('pO'),
-  const Symbol('pP'),
-  const Symbol('pQ'),
-  const Symbol('pR'),
-  const Symbol('pS'),
-  const Symbol('pT'),
-  const Symbol('pU'),
-  const Symbol('pV'),
-  const Symbol('pW'),
-  const Symbol('pX'),
-  const Symbol('pY'),
-  const Symbol('pZ'),
-  const Symbol('qa'),
-  const Symbol('qb'),
-  const Symbol('qc'),
-  const Symbol('qd'),
-  const Symbol('qe'),
-  const Symbol('qf'),
-  const Symbol('qg'),
-  const Symbol('qh'),
-  const Symbol('qi'),
-  const Symbol('qj'),
-  const Symbol('qk'),
-  const Symbol('ql'),
-  const Symbol('qm'),
-  const Symbol('qn'),
-  const Symbol('qo'),
-  const Symbol('qp'),
-  const Symbol('qq'),
-  const Symbol('qr'),
-  const Symbol('qs'),
-  const Symbol('qt'),
-  const Symbol('qu'),
-  const Symbol('qv'),
-  const Symbol('qw'),
-  const Symbol('qx'),
-  const Symbol('qy'),
-  const Symbol('qz'),
-  const Symbol('qA'),
-  const Symbol('qB'),
-  const Symbol('qC'),
-  const Symbol('qD'),
-  const Symbol('qE'),
-  const Symbol('qF'),
-  const Symbol('qG'),
-  const Symbol('qH'),
-  const Symbol('qI'),
-  const Symbol('qJ'),
-  const Symbol('qK'),
-  const Symbol('qL'),
-  const Symbol('qM'),
-  const Symbol('qN'),
-  const Symbol('qO'),
-  const Symbol('qP'),
-  const Symbol('qQ'),
-  const Symbol('qR'),
-  const Symbol('qS'),
-  const Symbol('qT'),
-  const Symbol('qU'),
-  const Symbol('qV'),
-  const Symbol('qW'),
-  const Symbol('qX'),
-  const Symbol('qY'),
-  const Symbol('qZ'),
-  const Symbol('ra'),
-  const Symbol('rb'),
-  const Symbol('rc'),
-  const Symbol('rd'),
-  const Symbol('re'),
-  const Symbol('rf'),
-  const Symbol('rg'),
-  const Symbol('rh'),
-  const Symbol('ri'),
-  const Symbol('rj'),
-  const Symbol('rk'),
-  const Symbol('rl'),
-  const Symbol('rm'),
-  const Symbol('rn'),
-  const Symbol('ro'),
-  const Symbol('rp'),
-  const Symbol('rq'),
-  const Symbol('rr'),
-  const Symbol('rs'),
-  const Symbol('rt'),
-  const Symbol('ru'),
-  const Symbol('rv'),
-  const Symbol('rw'),
-  const Symbol('rx'),
-  const Symbol('ry'),
-  const Symbol('rz'),
-  const Symbol('rA'),
-  const Symbol('rB'),
-  const Symbol('rC'),
-  const Symbol('rD'),
-  const Symbol('rE'),
-  const Symbol('rF'),
-  const Symbol('rG'),
-  const Symbol('rH'),
-  const Symbol('rI'),
-  const Symbol('rJ'),
-  const Symbol('rK'),
-  const Symbol('rL'),
-  const Symbol('rM'),
-  const Symbol('rN'),
-  const Symbol('rO'),
-  const Symbol('rP'),
-  const Symbol('rQ'),
-  const Symbol('rR'),
-  const Symbol('rS'),
-  const Symbol('rT'),
-  const Symbol('rU'),
-  const Symbol('rV'),
-  const Symbol('rW'),
-  const Symbol('rX'),
-  const Symbol('rY'),
-  const Symbol('rZ'),
-  const Symbol('sa'),
-  const Symbol('sb'),
-  const Symbol('sc'),
-  const Symbol('sd'),
-  const Symbol('se'),
-  const Symbol('sf'),
-  const Symbol('sg'),
-  const Symbol('sh'),
-  const Symbol('si'),
-  const Symbol('sj'),
-  const Symbol('sk'),
-  const Symbol('sl'),
-  const Symbol('sm'),
-  const Symbol('sn'),
-  const Symbol('so'),
-  const Symbol('sp'),
-  const Symbol('sq'),
-  const Symbol('sr'),
-  const Symbol('ss'),
-  const Symbol('st'),
-  const Symbol('su'),
-  const Symbol('sv'),
-  const Symbol('sw'),
-  const Symbol('sx'),
-  const Symbol('sy'),
-  const Symbol('sz'),
-  const Symbol('sA'),
-  const Symbol('sB'),
-  const Symbol('sC'),
-  const Symbol('sD'),
-  const Symbol('sE'),
-  const Symbol('sF'),
-  const Symbol('sG'),
-  const Symbol('sH'),
-  const Symbol('sI'),
-  const Symbol('sJ'),
-  const Symbol('sK'),
-  const Symbol('sL'),
-  const Symbol('sM'),
-  const Symbol('sN'),
-  const Symbol('sO'),
-  const Symbol('sP'),
-  const Symbol('sQ'),
-  const Symbol('sR'),
-  const Symbol('sS'),
-  const Symbol('sT'),
-  const Symbol('sU'),
-  const Symbol('sV'),
-  const Symbol('sW'),
-  const Symbol('sX'),
-  const Symbol('sY'),
-  const Symbol('sZ'),
-  const Symbol('ta'),
-  const Symbol('tb'),
-  const Symbol('tc'),
-  const Symbol('td'),
-  const Symbol('te'),
-  const Symbol('tf'),
-  const Symbol('tg'),
-  const Symbol('th'),
-  const Symbol('ti'),
-  const Symbol('tj'),
-  const Symbol('tk'),
-  const Symbol('tl'),
-  const Symbol('tm'),
-  const Symbol('tn'),
-  const Symbol('to'),
-  const Symbol('tp'),
-  const Symbol('tq'),
-  const Symbol('tr'),
-  const Symbol('ts'),
-  const Symbol('tt'),
-  const Symbol('tu'),
-  const Symbol('tv'),
-  const Symbol('tw'),
-  const Symbol('tx'),
-  const Symbol('ty'),
-  const Symbol('tz'),
-  const Symbol('tA'),
-  const Symbol('tB'),
-  const Symbol('tC'),
-  const Symbol('tD'),
-  const Symbol('tE'),
-  const Symbol('tF'),
-  const Symbol('tG'),
-  const Symbol('tH'),
-  const Symbol('tI'),
-  const Symbol('tJ'),
-  const Symbol('tK'),
-  const Symbol('tL'),
-  const Symbol('tM'),
-  const Symbol('tN'),
-  const Symbol('tO'),
-  const Symbol('tP'),
-  const Symbol('tQ'),
-  const Symbol('tR'),
-  const Symbol('tS'),
-  const Symbol('tT'),
-  const Symbol('tU'),
-  const Symbol('tV'),
-  const Symbol('tW'),
-  const Symbol('tX'),
-  const Symbol('tY'),
-  const Symbol('tZ'),
-  const Symbol('ua'),
-  const Symbol('ub'),
-  const Symbol('uc'),
-  const Symbol('ud'),
-  const Symbol('ue'),
-  const Symbol('uf'),
-  const Symbol('ug'),
-  const Symbol('uh'),
-  const Symbol('ui'),
-  const Symbol('uj'),
-  const Symbol('uk'),
-  const Symbol('ul'),
-  const Symbol('um'),
-  const Symbol('un'),
-  const Symbol('uo'),
-  const Symbol('up'),
-  const Symbol('uq'),
-  const Symbol('ur'),
-  const Symbol('us'),
-  const Symbol('ut'),
-  const Symbol('uu'),
-  const Symbol('uv'),
-  const Symbol('uw'),
-  const Symbol('ux'),
-  const Symbol('uy'),
-  const Symbol('uz'),
-  const Symbol('uA'),
-  const Symbol('uB'),
-  const Symbol('uC'),
-  const Symbol('uD'),
-  const Symbol('uE'),
-  const Symbol('uF'),
-  const Symbol('uG'),
-  const Symbol('uH'),
-  const Symbol('uI'),
-  const Symbol('uJ'),
-  const Symbol('uK'),
-  const Symbol('uL'),
-  const Symbol('uM'),
-  const Symbol('uN'),
-  const Symbol('uO'),
-  const Symbol('uP'),
-  const Symbol('uQ'),
-  const Symbol('uR'),
-  const Symbol('uS'),
-  const Symbol('uT'),
-  const Symbol('uU'),
-  const Symbol('uV'),
-  const Symbol('uW'),
-  const Symbol('uX'),
-  const Symbol('uY'),
-  const Symbol('uZ'),
-  const Symbol('va'),
-  const Symbol('vb'),
-  const Symbol('vc'),
-  const Symbol('vd'),
-  const Symbol('ve'),
-  const Symbol('vf'),
-  const Symbol('vg'),
-  const Symbol('vh'),
-  const Symbol('vi'),
-  const Symbol('vj'),
-  const Symbol('vk'),
-  const Symbol('vl'),
-  const Symbol('vm'),
-  const Symbol('vn'),
-  const Symbol('vo'),
-  const Symbol('vp'),
-  const Symbol('vq'),
-  const Symbol('vr'),
-  const Symbol('vs'),
-  const Symbol('vt'),
-  const Symbol('vu'),
-  const Symbol('vv'),
-  const Symbol('vw'),
-  const Symbol('vx'),
-  const Symbol('vy'),
-  const Symbol('vz'),
-  const Symbol('vA'),
-  const Symbol('vB'),
-  const Symbol('vC'),
-  const Symbol('vD'),
-  const Symbol('vE'),
-  const Symbol('vF'),
-  const Symbol('vG'),
-  const Symbol('vH'),
-  const Symbol('vI'),
-  const Symbol('vJ'),
-  const Symbol('vK'),
-  const Symbol('vL'),
-  const Symbol('vM'),
-  const Symbol('vN'),
-  const Symbol('vO'),
-  const Symbol('vP'),
-  const Symbol('vQ'),
-  const Symbol('vR'),
-  const Symbol('vS'),
-  const Symbol('vT'),
-  const Symbol('vU'),
-  const Symbol('vV'),
-  const Symbol('vW'),
-  const Symbol('vX'),
-  const Symbol('vY'),
-  const Symbol('vZ'),
-  const Symbol('wa'),
-  const Symbol('wb'),
-  const Symbol('wc'),
-  const Symbol('wd'),
-  const Symbol('we'),
-  const Symbol('wf'),
-  const Symbol('wg'),
-  const Symbol('wh'),
-  const Symbol('wi'),
-  const Symbol('wj'),
-  const Symbol('wk'),
-  const Symbol('wl'),
-  const Symbol('wm'),
-  const Symbol('wn'),
-  const Symbol('wo'),
-  const Symbol('wp'),
-  const Symbol('wq'),
-  const Symbol('wr'),
-  const Symbol('ws'),
-  const Symbol('wt'),
-  const Symbol('wu'),
-  const Symbol('wv'),
-  const Symbol('ww'),
-  const Symbol('wx'),
-  const Symbol('wy'),
-  const Symbol('wz'),
-  const Symbol('wA'),
-  const Symbol('wB'),
-  const Symbol('wC'),
-  const Symbol('wD'),
-  const Symbol('wE'),
-  const Symbol('wF'),
-  const Symbol('wG'),
-  const Symbol('wH'),
-  const Symbol('wI'),
-  const Symbol('wJ'),
-  const Symbol('wK'),
-  const Symbol('wL'),
-  const Symbol('wM'),
-  const Symbol('wN'),
-  const Symbol('wO'),
-  const Symbol('wP'),
-  const Symbol('wQ'),
-  const Symbol('wR'),
-  const Symbol('wS'),
-  const Symbol('wT'),
-  const Symbol('wU'),
-  const Symbol('wV'),
-  const Symbol('wW'),
-  const Symbol('wX'),
-  const Symbol('wY'),
-  const Symbol('wZ'),
-  const Symbol('xa'),
-  const Symbol('xb'),
-  const Symbol('xc'),
-  const Symbol('xd'),
-  const Symbol('xe'),
-  const Symbol('xf'),
-  const Symbol('xg'),
-  const Symbol('xh'),
-  const Symbol('xi'),
-  const Symbol('xj'),
-  const Symbol('xk'),
-  const Symbol('xl'),
-  const Symbol('xm'),
-  const Symbol('xn'),
-  const Symbol('xo'),
-  const Symbol('xp'),
-  const Symbol('xq'),
-  const Symbol('xr'),
-  const Symbol('xs'),
-  const Symbol('xt'),
-  const Symbol('xu'),
-  const Symbol('xv'),
-  const Symbol('xw'),
-  const Symbol('xx'),
-  const Symbol('xy'),
-  const Symbol('xz'),
-  const Symbol('xA'),
-  const Symbol('xB'),
-  const Symbol('xC'),
-  const Symbol('xD'),
-  const Symbol('xE'),
-  const Symbol('xF'),
-  const Symbol('xG'),
-  const Symbol('xH'),
-  const Symbol('xI'),
-  const Symbol('xJ'),
-  const Symbol('xK'),
-  const Symbol('xL'),
-  const Symbol('xM'),
-  const Symbol('xN'),
-  const Symbol('xO'),
-  const Symbol('xP'),
-  const Symbol('xQ'),
-  const Symbol('xR'),
-  const Symbol('xS'),
-  const Symbol('xT'),
-  const Symbol('xU'),
-  const Symbol('xV'),
-  const Symbol('xW'),
-  const Symbol('xX'),
-  const Symbol('xY'),
-  const Symbol('xZ'),
-  const Symbol('ya'),
-  const Symbol('yb'),
-  const Symbol('yc'),
-  const Symbol('yd'),
-  const Symbol('ye'),
-  const Symbol('yf'),
-  const Symbol('yg'),
-  const Symbol('yh'),
-  const Symbol('yi'),
-  const Symbol('yj'),
-  const Symbol('yk'),
-  const Symbol('yl'),
-  const Symbol('ym'),
-  const Symbol('yn'),
-  const Symbol('yo'),
-  const Symbol('yp'),
-  const Symbol('yq'),
-  const Symbol('yr'),
-  const Symbol('ys'),
-  const Symbol('yt'),
-  const Symbol('yu'),
-  const Symbol('yv'),
-  const Symbol('yw'),
-  const Symbol('yx'),
-  const Symbol('yy'),
-  const Symbol('yz'),
-  const Symbol('yA'),
-  const Symbol('yB'),
-  const Symbol('yC'),
-  const Symbol('yD'),
-  const Symbol('yE'),
-  const Symbol('yF'),
-  const Symbol('yG'),
-  const Symbol('yH'),
-  const Symbol('yI'),
-  const Symbol('yJ'),
-  const Symbol('yK'),
-  const Symbol('yL'),
-  const Symbol('yM'),
-  const Symbol('yN'),
-  const Symbol('yO'),
-  const Symbol('yP'),
-  const Symbol('yQ'),
-  const Symbol('yR'),
-  const Symbol('yS'),
-  const Symbol('yT'),
-  const Symbol('yU'),
-  const Symbol('yV'),
-  const Symbol('yW'),
-  const Symbol('yX'),
-  const Symbol('yY'),
-  const Symbol('yZ'),
-  const Symbol('za'),
-  const Symbol('zb'),
-  const Symbol('zc'),
-  const Symbol('zd'),
-  const Symbol('ze'),
-  const Symbol('zf'),
-  const Symbol('zg'),
-  const Symbol('zh'),
-  const Symbol('zi'),
-  const Symbol('zj'),
-  const Symbol('zk'),
-  const Symbol('zl'),
-  const Symbol('zm'),
-  const Symbol('zn'),
-  const Symbol('zo'),
-  const Symbol('zp'),
-  const Symbol('zq'),
-  const Symbol('zr'),
-  const Symbol('zs'),
-  const Symbol('zt'),
-  const Symbol('zu'),
-  const Symbol('zv'),
-  const Symbol('zw'),
-  const Symbol('zx'),
-  const Symbol('zy'),
-  const Symbol('zz'),
-  const Symbol('zA'),
-  const Symbol('zB'),
-  const Symbol('zC'),
-  const Symbol('zD'),
-  const Symbol('zE'),
-  const Symbol('zF'),
-  const Symbol('zG'),
-  const Symbol('zH'),
-  const Symbol('zI'),
-  const Symbol('zJ'),
-  const Symbol('zK'),
-  const Symbol('zL'),
-  const Symbol('zM'),
-  const Symbol('zN'),
-  const Symbol('zO'),
-  const Symbol('zP'),
-  const Symbol('zQ'),
-  const Symbol('zR'),
-  const Symbol('zS'),
-  const Symbol('zT'),
-  const Symbol('zU'),
-  const Symbol('zV'),
-  const Symbol('zW'),
-  const Symbol('zX'),
-  const Symbol('zY'),
-  const Symbol('zZ'),
-  const Symbol('Aa'),
-  const Symbol('Ab'),
-  const Symbol('Ac'),
-  const Symbol('Ad'),
-  const Symbol('Ae'),
-  const Symbol('Af'),
-  const Symbol('Ag'),
-  const Symbol('Ah'),
-  const Symbol('Ai'),
-  const Symbol('Aj'),
-  const Symbol('Ak'),
-  const Symbol('Al'),
-  const Symbol('Am'),
-  const Symbol('An'),
-  const Symbol('Ao'),
-  const Symbol('Ap'),
-  const Symbol('Aq'),
-  const Symbol('Ar'),
-  const Symbol('As'),
-  const Symbol('At'),
-  const Symbol('Au'),
-  const Symbol('Av'),
-  const Symbol('Aw'),
-  const Symbol('Ax'),
-  const Symbol('Ay'),
-  const Symbol('Az'),
-  const Symbol('AA'),
-  const Symbol('AB'),
-  const Symbol('AC'),
-  const Symbol('AD'),
-  const Symbol('AE'),
-  const Symbol('AF'),
-  const Symbol('AG'),
-  const Symbol('AH'),
-  const Symbol('AI'),
-  const Symbol('AJ'),
-  const Symbol('AK'),
-  const Symbol('AL'),
-  const Symbol('AM'),
-  const Symbol('AN'),
-  const Symbol('AO'),
-  const Symbol('AP'),
-  const Symbol('AQ'),
-  const Symbol('AR'),
-  const Symbol('AS'),
-  const Symbol('AT'),
-  const Symbol('AU'),
-  const Symbol('AV'),
-  const Symbol('AW'),
-  const Symbol('AX'),
-  const Symbol('AY'),
-  const Symbol('AZ'),
-  const Symbol('Ba'),
-  const Symbol('Bb'),
-  const Symbol('Bc'),
-  const Symbol('Bd'),
-  const Symbol('Be'),
-  const Symbol('Bf'),
-  const Symbol('Bg'),
-  const Symbol('Bh'),
-  const Symbol('Bi'),
-  const Symbol('Bj'),
-  const Symbol('Bk'),
-  const Symbol('Bl'),
-  const Symbol('Bm'),
-  const Symbol('Bn'),
-  const Symbol('Bo'),
-  const Symbol('Bp'),
-  const Symbol('Bq'),
-  const Symbol('Br'),
-  const Symbol('Bs'),
-  const Symbol('Bt'),
-  const Symbol('Bu'),
-  const Symbol('Bv'),
-  const Symbol('Bw'),
-  const Symbol('Bx'),
-  const Symbol('By'),
-  const Symbol('Bz'),
-  const Symbol('BA'),
-  const Symbol('BB'),
-  const Symbol('BC'),
-  const Symbol('BD'),
-  const Symbol('BE'),
-  const Symbol('BF'),
-  const Symbol('BG'),
-  const Symbol('BH'),
-  const Symbol('BI'),
-  const Symbol('BJ'),
-  const Symbol('BK'),
-  const Symbol('BL'),
-  const Symbol('BM'),
-  const Symbol('BN'),
-  const Symbol('BO'),
-  const Symbol('BP'),
-  const Symbol('BQ'),
-  const Symbol('BR'),
-  const Symbol('BS'),
-  const Symbol('BT'),
-  const Symbol('BU'),
-  const Symbol('BV'),
-  const Symbol('BW'),
-  const Symbol('BX'),
-  const Symbol('BY'),
-  const Symbol('BZ'),
-  const Symbol('Ca'),
-  const Symbol('Cb'),
-  const Symbol('Cc'),
-  const Symbol('Cd'),
-  const Symbol('Ce'),
-  const Symbol('Cf'),
-  const Symbol('Cg'),
-  const Symbol('Ch'),
-  const Symbol('Ci'),
-  const Symbol('Cj'),
-  const Symbol('Ck'),
-  const Symbol('Cl'),
-  const Symbol('Cm'),
-  const Symbol('Cn'),
-  const Symbol('Co'),
-  const Symbol('Cp'),
-  const Symbol('Cq'),
-  const Symbol('Cr'),
-  const Symbol('Cs'),
-  const Symbol('Ct'),
-  const Symbol('Cu'),
-  const Symbol('Cv'),
-  const Symbol('Cw'),
-  const Symbol('Cx'),
-  const Symbol('Cy'),
-  const Symbol('Cz'),
-  const Symbol('CA'),
-  const Symbol('CB'),
-  const Symbol('CC'),
-  const Symbol('CD'),
-  const Symbol('CE'),
-  const Symbol('CF'),
-  const Symbol('CG'),
-  const Symbol('CH'),
-  const Symbol('CI'),
-  const Symbol('CJ'),
-  const Symbol('CK'),
-  const Symbol('CL'),
-  const Symbol('CM'),
-  const Symbol('CN'),
-  const Symbol('CO'),
-  const Symbol('CP'),
-  const Symbol('CQ'),
-  const Symbol('CR'),
-  const Symbol('CS'),
-  const Symbol('CT'),
-  const Symbol('CU'),
-  const Symbol('CV'),
-  const Symbol('CW'),
-  const Symbol('CX'),
-  const Symbol('CY'),
-  const Symbol('CZ'),
-  const Symbol('Da'),
-  const Symbol('Db'),
-  const Symbol('Dc'),
-  const Symbol('Dd'),
-  const Symbol('De'),
-  const Symbol('Df'),
-  const Symbol('Dg'),
-  const Symbol('Dh'),
-  const Symbol('Di'),
-  const Symbol('Dj'),
-  const Symbol('Dk'),
-  const Symbol('Dl'),
-  const Symbol('Dm'),
-  const Symbol('Dn'),
-  const Symbol('Do'),
-  const Symbol('Dp'),
-  const Symbol('Dq'),
-  const Symbol('Dr'),
-  const Symbol('Ds'),
-  const Symbol('Dt'),
-  const Symbol('Du'),
-  const Symbol('Dv'),
-  const Symbol('Dw'),
-  const Symbol('Dx'),
-  const Symbol('Dy'),
-  const Symbol('Dz'),
-  const Symbol('DA'),
-  const Symbol('DB'),
-  const Symbol('DC'),
-  const Symbol('DD'),
-  const Symbol('DE'),
-  const Symbol('DF'),
-  const Symbol('DG'),
-  const Symbol('DH'),
-  const Symbol('DI'),
-  const Symbol('DJ'),
-  const Symbol('DK'),
-  const Symbol('DL'),
-  const Symbol('DM'),
-  const Symbol('DN'),
-  const Symbol('DO'),
-  const Symbol('DP'),
-  const Symbol('DQ'),
-  const Symbol('DR'),
-  const Symbol('DS'),
-  const Symbol('DT'),
-  const Symbol('DU'),
-  const Symbol('DV'),
-  const Symbol('DW'),
-  const Symbol('DX'),
-  const Symbol('DY'),
-  const Symbol('DZ'),
-  const Symbol('Ea'),
-  const Symbol('Eb'),
-  const Symbol('Ec'),
-  const Symbol('Ed'),
-  const Symbol('Ee'),
-  const Symbol('Ef'),
-  const Symbol('Eg'),
-  const Symbol('Eh'),
-  const Symbol('Ei'),
-  const Symbol('Ej'),
-  const Symbol('Ek'),
-  const Symbol('El'),
-  const Symbol('Em'),
-  const Symbol('En'),
-  const Symbol('Eo'),
-  const Symbol('Ep'),
-  const Symbol('Eq'),
-  const Symbol('Er'),
-  const Symbol('Es'),
-  const Symbol('Et'),
-  const Symbol('Eu'),
-  const Symbol('Ev'),
-  const Symbol('Ew'),
-  const Symbol('Ex'),
-  const Symbol('Ey'),
-  const Symbol('Ez'),
-  const Symbol('EA'),
-  const Symbol('EB'),
-  const Symbol('EC'),
-  const Symbol('ED'),
-  const Symbol('EE'),
-  const Symbol('EF'),
-  const Symbol('EG'),
-  const Symbol('EH'),
-  const Symbol('EI'),
-  const Symbol('EJ'),
-  const Symbol('EK'),
-  const Symbol('EL'),
-  const Symbol('EM'),
-  const Symbol('EN'),
-  const Symbol('EO'),
-  const Symbol('EP'),
-  const Symbol('EQ'),
-  const Symbol('ER'),
-  const Symbol('ES'),
-  const Symbol('ET'),
-  const Symbol('EU'),
-  const Symbol('EV'),
-  const Symbol('EW'),
-  const Symbol('EX'),
-  const Symbol('EY'),
-  const Symbol('EZ'),
-  const Symbol('Fa'),
-  const Symbol('Fb'),
-  const Symbol('Fc'),
-  const Symbol('Fd'),
-  const Symbol('Fe'),
-  const Symbol('Ff'),
-  const Symbol('Fg'),
-  const Symbol('Fh'),
-  const Symbol('Fi'),
-  const Symbol('Fj'),
-  const Symbol('Fk'),
-  const Symbol('Fl'),
-  const Symbol('Fm'),
-  const Symbol('Fn'),
-  const Symbol('Fo'),
-  const Symbol('Fp'),
-  const Symbol('Fq'),
-  const Symbol('Fr'),
-  const Symbol('Fs'),
-  const Symbol('Ft'),
-  const Symbol('Fu'),
-  const Symbol('Fv'),
-  const Symbol('Fw'),
-  const Symbol('Fx'),
-  const Symbol('Fy'),
-  const Symbol('Fz'),
-  const Symbol('FA'),
-  const Symbol('FB'),
-  const Symbol('FC'),
-  const Symbol('FD'),
-  const Symbol('FE'),
-  const Symbol('FF'),
-  const Symbol('FG'),
-  const Symbol('FH'),
-  const Symbol('FI'),
-  const Symbol('FJ'),
-  const Symbol('FK'),
-  const Symbol('FL'),
-  const Symbol('FM'),
-  const Symbol('FN'),
-  const Symbol('FO'),
-  const Symbol('FP'),
-  const Symbol('FQ'),
-  const Symbol('FR'),
-  const Symbol('FS'),
-  const Symbol('FT'),
-  const Symbol('FU'),
-  const Symbol('FV'),
-  const Symbol('FW'),
-  const Symbol('FX'),
-  const Symbol('FY'),
-  const Symbol('FZ'),
-  const Symbol('Ga'),
-  const Symbol('Gb'),
-  const Symbol('Gc'),
-  const Symbol('Gd'),
-  const Symbol('Ge'),
-  const Symbol('Gf'),
-  const Symbol('Gg'),
-  const Symbol('Gh'),
-  const Symbol('Gi'),
-  const Symbol('Gj'),
-  const Symbol('Gk'),
-  const Symbol('Gl'),
-  const Symbol('Gm'),
-  const Symbol('Gn'),
-  const Symbol('Go'),
-  const Symbol('Gp'),
-  const Symbol('Gq'),
-  const Symbol('Gr'),
-  const Symbol('Gs'),
-  const Symbol('Gt'),
-  const Symbol('Gu'),
-  const Symbol('Gv'),
-  const Symbol('Gw'),
-  const Symbol('Gx'),
-  const Symbol('Gy'),
-  const Symbol('Gz'),
-  const Symbol('GA'),
-  const Symbol('GB'),
-  const Symbol('GC'),
-  const Symbol('GD'),
-  const Symbol('GE'),
-  const Symbol('GF'),
-  const Symbol('GG'),
-  const Symbol('GH'),
-  const Symbol('GI'),
-  const Symbol('GJ'),
-  const Symbol('GK'),
-  const Symbol('GL'),
-  const Symbol('GM'),
-  const Symbol('GN'),
-  const Symbol('GO'),
-  const Symbol('GP'),
-  const Symbol('GQ'),
-  const Symbol('GR'),
-  const Symbol('GS'),
-  const Symbol('GT'),
-  const Symbol('GU'),
-  const Symbol('GV'),
-  const Symbol('GW'),
-  const Symbol('GX'),
-  const Symbol('GY'),
-  const Symbol('GZ'),
-  const Symbol('Ha'),
-  const Symbol('Hb'),
-  const Symbol('Hc'),
-  const Symbol('Hd'),
-  const Symbol('He'),
-  const Symbol('Hf'),
-  const Symbol('Hg'),
-  const Symbol('Hh'),
-  const Symbol('Hi'),
-  const Symbol('Hj'),
-  const Symbol('Hk'),
-  const Symbol('Hl'),
-  const Symbol('Hm'),
-  const Symbol('Hn'),
-  const Symbol('Ho'),
-  const Symbol('Hp'),
-  const Symbol('Hq'),
-  const Symbol('Hr'),
-  const Symbol('Hs'),
-  const Symbol('Ht'),
-  const Symbol('Hu'),
-  const Symbol('Hv'),
-  const Symbol('Hw'),
-  const Symbol('Hx'),
-  const Symbol('Hy'),
-  const Symbol('Hz'),
-  const Symbol('HA'),
-  const Symbol('HB'),
-  const Symbol('HC'),
-  const Symbol('HD'),
-  const Symbol('HE'),
-  const Symbol('HF'),
-  const Symbol('HG'),
-  const Symbol('HH'),
-  const Symbol('HI'),
-  const Symbol('HJ'),
-  const Symbol('HK'),
-  const Symbol('HL'),
-  const Symbol('HM'),
-  const Symbol('HN'),
-  const Symbol('HO'),
-  const Symbol('HP'),
-  const Symbol('HQ'),
-  const Symbol('HR'),
-  const Symbol('HS'),
-  const Symbol('HT'),
-  const Symbol('HU'),
-  const Symbol('HV'),
-  const Symbol('HW'),
-  const Symbol('HX'),
-  const Symbol('HY'),
-  const Symbol('HZ'),
-  const Symbol('Ia'),
-  const Symbol('Ib'),
-  const Symbol('Ic'),
-  const Symbol('Id'),
-  const Symbol('Ie'),
-  const Symbol('If'),
-  const Symbol('Ig'),
-  const Symbol('Ih'),
-  const Symbol('Ii'),
-  const Symbol('Ij'),
-  const Symbol('Ik'),
-  const Symbol('Il'),
-  const Symbol('Im'),
-  const Symbol('In'),
-  const Symbol('Io'),
-  const Symbol('Ip'),
-  const Symbol('Iq'),
-  const Symbol('Ir'),
-  const Symbol('Is'),
-  const Symbol('It'),
-  const Symbol('Iu'),
-  const Symbol('Iv'),
-  const Symbol('Iw'),
-  const Symbol('Ix'),
-  const Symbol('Iy'),
-  const Symbol('Iz'),
-  const Symbol('IA'),
-  const Symbol('IB'),
-  const Symbol('IC'),
-  const Symbol('ID'),
-  const Symbol('IE'),
-  const Symbol('IF'),
-  const Symbol('IG'),
-  const Symbol('IH'),
-  const Symbol('II'),
-  const Symbol('IJ'),
-  const Symbol('IK'),
-  const Symbol('IL'),
-  const Symbol('IM'),
-  const Symbol('IN'),
-  const Symbol('IO'),
-  const Symbol('IP'),
-  const Symbol('IQ'),
-  const Symbol('IR'),
-  const Symbol('IS'),
-  const Symbol('IT'),
-  const Symbol('IU'),
-  const Symbol('IV'),
-  const Symbol('IW'),
-  const Symbol('IX'),
-  const Symbol('IY'),
-  const Symbol('IZ'),
-  const Symbol('Ja'),
-  const Symbol('Jb'),
-  const Symbol('Jc'),
-  const Symbol('Jd'),
-  const Symbol('Je'),
-  const Symbol('Jf'),
-  const Symbol('Jg'),
-  const Symbol('Jh'),
-  const Symbol('Ji'),
-  const Symbol('Jj'),
-  const Symbol('Jk'),
-  const Symbol('Jl'),
-  const Symbol('Jm'),
-  const Symbol('Jn'),
-  const Symbol('Jo'),
-  const Symbol('Jp'),
-  const Symbol('Jq'),
-  const Symbol('Jr'),
-  const Symbol('Js'),
-  const Symbol('Jt'),
-  const Symbol('Ju'),
-  const Symbol('Jv'),
-  const Symbol('Jw'),
-  const Symbol('Jx'),
-  const Symbol('Jy'),
-  const Symbol('Jz'),
-  const Symbol('JA'),
-  const Symbol('JB'),
-  const Symbol('JC'),
-  const Symbol('JD'),
-  const Symbol('JE'),
-  const Symbol('JF'),
-  const Symbol('JG'),
-  const Symbol('JH'),
-  const Symbol('JI'),
-  const Symbol('JJ'),
-  const Symbol('JK'),
-  const Symbol('JL'),
-  const Symbol('JM'),
-  const Symbol('JN'),
-  const Symbol('JO'),
-  const Symbol('JP'),
-  const Symbol('JQ'),
-  const Symbol('JR'),
-  const Symbol('JS'),
-  const Symbol('JT'),
-  const Symbol('JU'),
-  const Symbol('JV'),
-  const Symbol('JW'),
-  const Symbol('JX'),
-  const Symbol('JY'),
-  const Symbol('JZ'),
-  const Symbol('Ka'),
-  const Symbol('Kb'),
-  const Symbol('Kc'),
-  const Symbol('Kd'),
-  const Symbol('Ke'),
-  const Symbol('Kf'),
-  const Symbol('Kg'),
-  const Symbol('Kh'),
-  const Symbol('Ki'),
-  const Symbol('Kj'),
-  const Symbol('Kk'),
-  const Symbol('Kl'),
-  const Symbol('Km'),
-  const Symbol('Kn'),
-  const Symbol('Ko'),
-  const Symbol('Kp'),
-  const Symbol('Kq'),
-  const Symbol('Kr'),
-  const Symbol('Ks'),
-  const Symbol('Kt'),
-  const Symbol('Ku'),
-  const Symbol('Kv'),
-  const Symbol('Kw'),
-  const Symbol('Kx'),
-  const Symbol('Ky'),
-  const Symbol('Kz'),
-  const Symbol('KA'),
-  const Symbol('KB'),
-  const Symbol('KC'),
-  const Symbol('KD'),
-  const Symbol('KE'),
-  const Symbol('KF'),
-  const Symbol('KG'),
-  const Symbol('KH'),
-  const Symbol('KI'),
-  const Symbol('KJ'),
-  const Symbol('KK'),
-  const Symbol('KL'),
-  const Symbol('KM'),
-  const Symbol('KN'),
-  const Symbol('KO'),
-  const Symbol('KP'),
-  const Symbol('KQ'),
-  const Symbol('KR'),
-  const Symbol('KS'),
-  const Symbol('KT'),
-  const Symbol('KU'),
-  const Symbol('KV'),
-  const Symbol('KW'),
-  const Symbol('KX'),
-  const Symbol('KY'),
-  const Symbol('KZ'),
-  const Symbol('La'),
-  const Symbol('Lb'),
-  const Symbol('Lc'),
-  const Symbol('Ld'),
-  const Symbol('Le'),
-  const Symbol('Lf'),
-  const Symbol('Lg'),
-  const Symbol('Lh'),
-  const Symbol('Li'),
-  const Symbol('Lj'),
-  const Symbol('Lk'),
-  const Symbol('Ll'),
-  const Symbol('Lm'),
-  const Symbol('Ln'),
-  const Symbol('Lo'),
-  const Symbol('Lp'),
-  const Symbol('Lq'),
-  const Symbol('Lr'),
-  const Symbol('Ls'),
-  const Symbol('Lt'),
-  const Symbol('Lu'),
-  const Symbol('Lv'),
-  const Symbol('Lw'),
-  const Symbol('Lx'),
-  const Symbol('Ly'),
-  const Symbol('Lz'),
-  const Symbol('LA'),
-  const Symbol('LB'),
-  const Symbol('LC'),
-  const Symbol('LD'),
-  const Symbol('LE'),
-  const Symbol('LF'),
-  const Symbol('LG'),
-  const Symbol('LH'),
-  const Symbol('LI'),
-  const Symbol('LJ'),
-  const Symbol('LK'),
-  const Symbol('LL'),
-  const Symbol('LM'),
-  const Symbol('LN'),
-  const Symbol('LO'),
-  const Symbol('LP'),
-  const Symbol('LQ'),
-  const Symbol('LR'),
-  const Symbol('LS'),
-  const Symbol('LT'),
-  const Symbol('LU'),
-  const Symbol('LV'),
-  const Symbol('LW'),
-  const Symbol('LX'),
-  const Symbol('LY'),
-  const Symbol('LZ'),
-  const Symbol('Ma'),
-  const Symbol('Mb'),
-  const Symbol('Mc'),
-  const Symbol('Md'),
-  const Symbol('Me'),
-  const Symbol('Mf'),
-  const Symbol('Mg'),
-  const Symbol('Mh'),
-  const Symbol('Mi'),
-  const Symbol('Mj'),
-  const Symbol('Mk'),
-  const Symbol('Ml'),
-  const Symbol('Mm'),
-  const Symbol('Mn'),
-  const Symbol('Mo'),
-  const Symbol('Mp'),
-  const Symbol('Mq'),
-  const Symbol('Mr'),
-  const Symbol('Ms'),
-  const Symbol('Mt'),
-  const Symbol('Mu'),
-  const Symbol('Mv'),
-  const Symbol('Mw'),
-  const Symbol('Mx'),
-  const Symbol('My'),
-  const Symbol('Mz'),
-  const Symbol('MA'),
-  const Symbol('MB'),
-  const Symbol('MC'),
-  const Symbol('MD'),
-  const Symbol('ME'),
-  const Symbol('MF'),
-  const Symbol('MG'),
-  const Symbol('MH'),
-  const Symbol('MI'),
-  const Symbol('MJ'),
-  const Symbol('MK'),
-  const Symbol('ML'),
-  const Symbol('MM'),
-  const Symbol('MN'),
-  const Symbol('MO'),
-  const Symbol('MP'),
-  const Symbol('MQ'),
-  const Symbol('MR'),
-  const Symbol('MS'),
-  const Symbol('MT'),
-  const Symbol('MU'),
-  const Symbol('MV'),
-  const Symbol('MW'),
-  const Symbol('MX'),
-  const Symbol('MY'),
-  const Symbol('MZ'),
-  const Symbol('Na'),
-  const Symbol('Nb'),
-  const Symbol('Nc'),
-  const Symbol('Nd'),
-  const Symbol('Ne'),
-  const Symbol('Nf'),
-  const Symbol('Ng'),
-  const Symbol('Nh'),
-  const Symbol('Ni'),
-  const Symbol('Nj'),
-  const Symbol('Nk'),
-  const Symbol('Nl'),
-  const Symbol('Nm'),
-  const Symbol('Nn'),
-  const Symbol('No'),
-  const Symbol('Np'),
-  const Symbol('Nq'),
-  const Symbol('Nr'),
-  const Symbol('Ns'),
-  const Symbol('Nt'),
-  const Symbol('Nu'),
-  const Symbol('Nv'),
-  const Symbol('Nw'),
-  const Symbol('Nx'),
-  const Symbol('Ny'),
-  const Symbol('Nz'),
-  const Symbol('NA'),
-  const Symbol('NB'),
-  const Symbol('NC'),
-  const Symbol('ND'),
-  const Symbol('NE'),
-  const Symbol('NF'),
-  const Symbol('NG'),
-  const Symbol('NH'),
-  const Symbol('NI'),
-  const Symbol('NJ'),
-  const Symbol('NK'),
-  const Symbol('NL'),
-  const Symbol('NM'),
-  const Symbol('NN'),
-  const Symbol('NO'),
-  const Symbol('NP'),
-  const Symbol('NQ'),
-  const Symbol('NR'),
-  const Symbol('NS'),
-  const Symbol('NT'),
-  const Symbol('NU'),
-  const Symbol('NV'),
-  const Symbol('NW'),
-  const Symbol('NX'),
-  const Symbol('NY'),
-  const Symbol('NZ'),
-  const Symbol('Oa'),
-  const Symbol('Ob'),
-  const Symbol('Oc'),
-  const Symbol('Od'),
-  const Symbol('Oe'),
-  const Symbol('Of'),
-  const Symbol('Og'),
-  const Symbol('Oh'),
-  const Symbol('Oi'),
-  const Symbol('Oj'),
-  const Symbol('Ok'),
-  const Symbol('Ol'),
-  const Symbol('Om'),
-  const Symbol('On'),
-  const Symbol('Oo'),
-  const Symbol('Op'),
-  const Symbol('Oq'),
-  const Symbol('Or'),
-  const Symbol('Os'),
-  const Symbol('Ot'),
-  const Symbol('Ou'),
-  const Symbol('Ov'),
-  const Symbol('Ow'),
-  const Symbol('Ox'),
-  const Symbol('Oy'),
-  const Symbol('Oz'),
-  const Symbol('OA'),
-  const Symbol('OB'),
-  const Symbol('OC'),
-  const Symbol('OD'),
-  const Symbol('OE'),
-  const Symbol('OF'),
-  const Symbol('OG'),
-  const Symbol('OH'),
-  const Symbol('OI'),
-  const Symbol('OJ'),
-  const Symbol('OK'),
-  const Symbol('OL'),
-  const Symbol('OM'),
-  const Symbol('ON'),
-  const Symbol('OO'),
-  const Symbol('OP'),
-  const Symbol('OQ'),
-  const Symbol('OR'),
-  const Symbol('OS'),
-  const Symbol('OT'),
-  const Symbol('OU'),
-  const Symbol('OV'),
-  const Symbol('OW'),
-  const Symbol('OX'),
-  const Symbol('OY'),
-  const Symbol('OZ'),
-  const Symbol('Pa'),
-  const Symbol('Pb'),
-  const Symbol('Pc'),
-  const Symbol('Pd'),
-  const Symbol('Pe'),
-  const Symbol('Pf'),
-  const Symbol('Pg'),
-  const Symbol('Ph'),
-  const Symbol('Pi'),
-  const Symbol('Pj'),
-  const Symbol('Pk'),
-  const Symbol('Pl'),
-  const Symbol('Pm'),
-  const Symbol('Pn'),
-  const Symbol('Po'),
-  const Symbol('Pp'),
-  const Symbol('Pq'),
-  const Symbol('Pr'),
-  const Symbol('Ps'),
-  const Symbol('Pt'),
-  const Symbol('Pu'),
-  const Symbol('Pv'),
-  const Symbol('Pw'),
-  const Symbol('Px'),
-  const Symbol('Py'),
-  const Symbol('Pz'),
-  const Symbol('PA'),
-  const Symbol('PB'),
-  const Symbol('PC'),
-  const Symbol('PD'),
-  const Symbol('PE'),
-  const Symbol('PF'),
-  const Symbol('PG'),
-  const Symbol('PH'),
-  const Symbol('PI'),
-  const Symbol('PJ'),
-  const Symbol('PK'),
-  const Symbol('PL'),
-  const Symbol('PM'),
-  const Symbol('PN'),
-  const Symbol('PO'),
-  const Symbol('PP'),
-  const Symbol('PQ'),
-  const Symbol('PR'),
-  const Symbol('PS'),
-  const Symbol('PT'),
-  const Symbol('PU'),
-  const Symbol('PV'),
-  const Symbol('PW'),
-  const Symbol('PX'),
-  const Symbol('PY'),
-  const Symbol('PZ'),
-  const Symbol('Qa'),
-  const Symbol('Qb'),
-  const Symbol('Qc'),
-  const Symbol('Qd'),
-  const Symbol('Qe'),
-  const Symbol('Qf'),
-  const Symbol('Qg'),
-  const Symbol('Qh'),
-  const Symbol('Qi'),
-  const Symbol('Qj'),
-  const Symbol('Qk'),
-  const Symbol('Ql'),
-  const Symbol('Qm'),
-  const Symbol('Qn'),
-  const Symbol('Qo'),
-  const Symbol('Qp'),
-  const Symbol('Qq'),
-  const Symbol('Qr'),
-  const Symbol('Qs'),
-  const Symbol('Qt'),
-  const Symbol('Qu'),
-  const Symbol('Qv'),
-  const Symbol('Qw'),
-  const Symbol('Qx'),
-  const Symbol('Qy'),
-  const Symbol('Qz'),
-  const Symbol('QA'),
-  const Symbol('QB'),
-  const Symbol('QC'),
-  const Symbol('QD'),
-  const Symbol('QE'),
-  const Symbol('QF'),
-  const Symbol('QG'),
-  const Symbol('QH'),
-  const Symbol('QI'),
-  const Symbol('QJ'),
-  const Symbol('QK'),
-  const Symbol('QL'),
-  const Symbol('QM'),
-  const Symbol('QN'),
-  const Symbol('QO'),
-  const Symbol('QP'),
-  const Symbol('QQ'),
-  const Symbol('QR'),
-  const Symbol('QS'),
-  const Symbol('QT'),
-  const Symbol('QU'),
-  const Symbol('QV'),
-  const Symbol('QW'),
-  const Symbol('QX'),
-  const Symbol('QY'),
-  const Symbol('QZ'),
-  const Symbol('Ra'),
-  const Symbol('Rb'),
-  const Symbol('Rc'),
-  const Symbol('Rd'),
-  const Symbol('Re'),
-  const Symbol('Rf'),
-  const Symbol('Rg'),
-  const Symbol('Rh'),
-  const Symbol('Ri'),
-  const Symbol('Rj'),
-  const Symbol('Rk'),
-  const Symbol('Rl'),
-  const Symbol('Rm'),
-  const Symbol('Rn'),
-  const Symbol('Ro'),
-  const Symbol('Rp'),
-  const Symbol('Rq'),
-  const Symbol('Rr'),
-  const Symbol('Rs'),
-  const Symbol('Rt'),
-  const Symbol('Ru'),
-  const Symbol('Rv'),
-  const Symbol('Rw'),
-  const Symbol('Rx'),
-  const Symbol('Ry'),
-  const Symbol('Rz'),
-  const Symbol('RA'),
-  const Symbol('RB'),
-  const Symbol('RC'),
-  const Symbol('RD'),
-  const Symbol('RE'),
-  const Symbol('RF'),
-  const Symbol('RG'),
-  const Symbol('RH'),
-  const Symbol('RI'),
-  const Symbol('RJ'),
-  const Symbol('RK'),
-  const Symbol('RL'),
-  const Symbol('RM'),
-  const Symbol('RN'),
-  const Symbol('RO'),
-  const Symbol('RP'),
-  const Symbol('RQ'),
-  const Symbol('RR'),
-  const Symbol('RS'),
-  const Symbol('RT'),
-  const Symbol('RU'),
-  const Symbol('RV'),
-  const Symbol('RW'),
-  const Symbol('RX'),
-  const Symbol('RY'),
-  const Symbol('RZ'),
-  const Symbol('Sa'),
-  const Symbol('Sb'),
-  const Symbol('Sc'),
-  const Symbol('Sd'),
-  const Symbol('Se'),
-  const Symbol('Sf'),
-  const Symbol('Sg'),
-  const Symbol('Sh'),
-  const Symbol('Si'),
-  const Symbol('Sj'),
-  const Symbol('Sk'),
-  const Symbol('Sl'),
-  const Symbol('Sm'),
-  const Symbol('Sn'),
-  const Symbol('So'),
-  const Symbol('Sp'),
-  const Symbol('Sq'),
-  const Symbol('Sr'),
-  const Symbol('Ss'),
-  const Symbol('St'),
-  const Symbol('Su'),
-  const Symbol('Sv'),
-  const Symbol('Sw'),
-  const Symbol('Sx'),
-  const Symbol('Sy'),
-  const Symbol('Sz'),
-  const Symbol('SA'),
-  const Symbol('SB'),
-  const Symbol('SC'),
-  const Symbol('SD'),
-  const Symbol('SE'),
-  const Symbol('SF'),
-  const Symbol('SG'),
-  const Symbol('SH'),
-  const Symbol('SI'),
-  const Symbol('SJ'),
-  const Symbol('SK'),
-  const Symbol('SL'),
-  const Symbol('SM'),
-  const Symbol('SN'),
-  const Symbol('SO'),
-  const Symbol('SP'),
-  const Symbol('SQ'),
-  const Symbol('SR'),
-  const Symbol('SS'),
-  const Symbol('ST'),
-  const Symbol('SU'),
-  const Symbol('SV'),
-  const Symbol('SW'),
-  const Symbol('SX'),
-  const Symbol('SY'),
-  const Symbol('SZ'),
-  const Symbol('Ta'),
-  const Symbol('Tb'),
-  const Symbol('Tc'),
-  const Symbol('Td'),
-  const Symbol('Te'),
-  const Symbol('Tf'),
-  const Symbol('Tg'),
-  const Symbol('Th'),
-  const Symbol('Ti'),
-  const Symbol('Tj'),
-  const Symbol('Tk'),
-  const Symbol('Tl'),
-  const Symbol('Tm'),
-  const Symbol('Tn'),
-  const Symbol('To'),
-  const Symbol('Tp'),
-  const Symbol('Tq'),
-  const Symbol('Tr'),
-  const Symbol('Ts'),
-  const Symbol('Tt'),
-  const Symbol('Tu'),
-  const Symbol('Tv'),
-  const Symbol('Tw'),
-  const Symbol('Tx'),
-  const Symbol('Ty'),
-  const Symbol('Tz'),
-  const Symbol('TA'),
-  const Symbol('TB'),
-  const Symbol('TC'),
-  const Symbol('TD'),
-  const Symbol('TE'),
-  const Symbol('TF'),
-  const Symbol('TG'),
-  const Symbol('TH'),
-  const Symbol('TI'),
-  const Symbol('TJ'),
-  const Symbol('TK'),
-  const Symbol('TL'),
-  const Symbol('TM'),
-  const Symbol('TN'),
-  const Symbol('TO'),
-  const Symbol('TP'),
-  const Symbol('TQ'),
-  const Symbol('TR'),
-  const Symbol('TS'),
-  const Symbol('TT'),
-  const Symbol('TU'),
-  const Symbol('TV'),
-  const Symbol('TW'),
-  const Symbol('TX'),
-  const Symbol('TY'),
-  const Symbol('TZ'),
-  const Symbol('Ua'),
-  const Symbol('Ub'),
-  const Symbol('Uc'),
-  const Symbol('Ud'),
-  const Symbol('Ue'),
-  const Symbol('Uf'),
-  const Symbol('Ug'),
-  const Symbol('Uh'),
-  const Symbol('Ui'),
-  const Symbol('Uj'),
-  const Symbol('Uk'),
-  const Symbol('Ul'),
-  const Symbol('Um'),
-  const Symbol('Un'),
-  const Symbol('Uo'),
-  const Symbol('Up'),
-  const Symbol('Uq'),
-  const Symbol('Ur'),
-  const Symbol('Us'),
-  const Symbol('Ut'),
-  const Symbol('Uu'),
-  const Symbol('Uv'),
-  const Symbol('Uw'),
-  const Symbol('Ux'),
-  const Symbol('Uy'),
-  const Symbol('Uz'),
-  const Symbol('UA'),
-  const Symbol('UB'),
-  const Symbol('UC'),
-  const Symbol('UD'),
-  const Symbol('UE'),
-  const Symbol('UF'),
-  const Symbol('UG'),
-  const Symbol('UH'),
-  const Symbol('UI'),
-  const Symbol('UJ'),
-  const Symbol('UK'),
-  const Symbol('UL'),
-  const Symbol('UM'),
-  const Symbol('UN'),
-  const Symbol('UO'),
-  const Symbol('UP'),
-  const Symbol('UQ'),
-  const Symbol('UR'),
-  const Symbol('US'),
-  const Symbol('UT'),
-  const Symbol('UU'),
-  const Symbol('UV'),
-  const Symbol('UW'),
-  const Symbol('UX'),
-  const Symbol('UY'),
-  const Symbol('UZ'),
-  const Symbol('Va'),
-  const Symbol('Vb'),
-  const Symbol('Vc'),
-  const Symbol('Vd'),
-  const Symbol('Ve'),
-  const Symbol('Vf'),
-  const Symbol('Vg'),
-  const Symbol('Vh'),
-  const Symbol('Vi'),
-  const Symbol('Vj'),
-  const Symbol('Vk'),
-  const Symbol('Vl'),
-  const Symbol('Vm'),
-  const Symbol('Vn'),
-  const Symbol('Vo'),
-  const Symbol('Vp'),
-  const Symbol('Vq'),
-  const Symbol('Vr'),
-  const Symbol('Vs'),
-  const Symbol('Vt'),
-  const Symbol('Vu'),
-  const Symbol('Vv'),
-  const Symbol('Vw'),
-  const Symbol('Vx'),
-  const Symbol('Vy'),
-  const Symbol('Vz'),
-  const Symbol('VA'),
-  const Symbol('VB'),
-  const Symbol('VC'),
-  const Symbol('VD'),
-  const Symbol('VE'),
-  const Symbol('VF'),
-  const Symbol('VG'),
-  const Symbol('VH'),
-  const Symbol('VI'),
-  const Symbol('VJ'),
-  const Symbol('VK'),
-  const Symbol('VL'),
-  const Symbol('VM'),
-  const Symbol('VN'),
-  const Symbol('VO'),
-  const Symbol('VP'),
-  const Symbol('VQ'),
-  const Symbol('VR'),
-  const Symbol('VS'),
-  const Symbol('VT'),
-  const Symbol('VU'),
-  const Symbol('VV'),
-  const Symbol('VW'),
-  const Symbol('VX'),
-  const Symbol('VY'),
-  const Symbol('VZ'),
-  const Symbol('Wa'),
-  const Symbol('Wb'),
-  const Symbol('Wc'),
-  const Symbol('Wd'),
-  const Symbol('We'),
-  const Symbol('Wf'),
-  const Symbol('Wg'),
-  const Symbol('Wh'),
-  const Symbol('Wi'),
-  const Symbol('Wj'),
-  const Symbol('Wk'),
-  const Symbol('Wl'),
-  const Symbol('Wm'),
-  const Symbol('Wn'),
-  const Symbol('Wo'),
-  const Symbol('Wp'),
-  const Symbol('Wq'),
-  const Symbol('Wr'),
-  const Symbol('Ws'),
-  const Symbol('Wt'),
-  const Symbol('Wu'),
-  const Symbol('Wv'),
-  const Symbol('Ww'),
-  const Symbol('Wx'),
-  const Symbol('Wy'),
-  const Symbol('Wz'),
-  const Symbol('WA'),
-  const Symbol('WB'),
-  const Symbol('WC'),
-  const Symbol('WD'),
-  const Symbol('WE'),
-  const Symbol('WF'),
-  const Symbol('WG'),
-  const Symbol('WH'),
-  const Symbol('WI'),
-  const Symbol('WJ'),
-  const Symbol('WK'),
-  const Symbol('WL'),
-  const Symbol('WM'),
-  const Symbol('WN'),
-  const Symbol('WO'),
-  const Symbol('WP'),
-  const Symbol('WQ'),
-  const Symbol('WR'),
-  const Symbol('WS'),
-  const Symbol('WT'),
-  const Symbol('WU'),
-  const Symbol('WV'),
-  const Symbol('WW'),
-  const Symbol('WX'),
-  const Symbol('WY'),
-  const Symbol('WZ'),
-  const Symbol('Xa'),
-  const Symbol('Xb'),
-  const Symbol('Xc'),
-  const Symbol('Xd'),
-  const Symbol('Xe'),
-  const Symbol('Xf'),
-  const Symbol('Xg'),
-  const Symbol('Xh'),
-  const Symbol('Xi'),
-  const Symbol('Xj'),
-  const Symbol('Xk'),
-  const Symbol('Xl'),
-  const Symbol('Xm'),
-  const Symbol('Xn'),
-  const Symbol('Xo'),
-  const Symbol('Xp'),
-  const Symbol('Xq'),
-  const Symbol('Xr'),
-  const Symbol('Xs'),
-  const Symbol('Xt'),
-  const Symbol('Xu'),
-  const Symbol('Xv'),
-  const Symbol('Xw'),
-  const Symbol('Xx'),
-  const Symbol('Xy'),
-  const Symbol('Xz'),
-  const Symbol('XA'),
-  const Symbol('XB'),
-  const Symbol('XC'),
-  const Symbol('XD'),
-  const Symbol('XE'),
-  const Symbol('XF'),
-  const Symbol('XG'),
-  const Symbol('XH'),
-  const Symbol('XI'),
-  const Symbol('XJ'),
-  const Symbol('XK'),
-  const Symbol('XL'),
-  const Symbol('XM'),
-  const Symbol('XN'),
-  const Symbol('XO'),
-  const Symbol('XP'),
-  const Symbol('XQ'),
-  const Symbol('XR'),
-  const Symbol('XS'),
-  const Symbol('XT'),
-  const Symbol('XU'),
-  const Symbol('XV'),
-  const Symbol('XW'),
-  const Symbol('XX'),
-  const Symbol('XY'),
-  const Symbol('XZ'),
-  const Symbol('Ya'),
-  const Symbol('Yb'),
-  const Symbol('Yc'),
-  const Symbol('Yd'),
-  const Symbol('Ye'),
-  const Symbol('Yf'),
-  const Symbol('Yg'),
-  const Symbol('Yh'),
-  const Symbol('Yi'),
-  const Symbol('Yj'),
-  const Symbol('Yk'),
-  const Symbol('Yl'),
-  const Symbol('Ym'),
-  const Symbol('Yn'),
-  const Symbol('Yo'),
-  const Symbol('Yp'),
-  const Symbol('Yq'),
-  const Symbol('Yr'),
-  const Symbol('Ys'),
-  const Symbol('Yt'),
-  const Symbol('Yu'),
-  const Symbol('Yv'),
-  const Symbol('Yw'),
-  const Symbol('Yx'),
-  const Symbol('Yy'),
-  const Symbol('Yz'),
-  const Symbol('YA'),
-  const Symbol('YB'),
-  const Symbol('YC'),
-  const Symbol('YD'),
-  const Symbol('YE'),
-  const Symbol('YF'),
-  const Symbol('YG'),
-  const Symbol('YH'),
-  const Symbol('YI'),
-  const Symbol('YJ'),
-  const Symbol('YK'),
-  const Symbol('YL'),
-  const Symbol('YM'),
-  const Symbol('YN'),
-  const Symbol('YO'),
-  const Symbol('YP'),
-  const Symbol('YQ'),
-  const Symbol('YR'),
-  const Symbol('YS'),
-  const Symbol('YT'),
-  const Symbol('YU'),
-  const Symbol('YV'),
-  const Symbol('YW'),
-  const Symbol('YX'),
-  const Symbol('YY'),
-  const Symbol('YZ'),
-  const Symbol('Za'),
-  const Symbol('Zb'),
-  const Symbol('Zc'),
-  const Symbol('Zd'),
-  const Symbol('Ze'),
-  const Symbol('Zf'),
-  const Symbol('Zg'),
-  const Symbol('Zh'),
-  const Symbol('Zi'),
-  const Symbol('Zj'),
-  const Symbol('Zk'),
-  const Symbol('Zl'),
-  const Symbol('Zm'),
-  const Symbol('Zn'),
-  const Symbol('Zo'),
-  const Symbol('Zp'),
-  const Symbol('Zq'),
-  const Symbol('Zr'),
-  const Symbol('Zs'),
-  const Symbol('Zt'),
-  const Symbol('Zu'),
-  const Symbol('Zv'),
-  const Symbol('Zw'),
-  const Symbol('Zx'),
-  const Symbol('Zy'),
-  const Symbol('Zz'),
-  const Symbol('ZA'),
-  const Symbol('ZB'),
-  const Symbol('ZC'),
-  const Symbol('ZD'),
-  const Symbol('ZE'),
-  const Symbol('ZF'),
-  const Symbol('ZG'),
-  const Symbol('ZH'),
-  const Symbol('ZI'),
-  const Symbol('ZJ'),
-  const Symbol('ZK'),
-  const Symbol('ZL'),
-  const Symbol('ZM'),
-  const Symbol('ZN'),
-  const Symbol('ZO'),
-  const Symbol('ZP'),
-  const Symbol('ZQ'),
-  const Symbol('ZR'),
-  const Symbol('ZS'),
-  const Symbol('ZT'),
-  const Symbol('ZU'),
-  const Symbol('ZV'),
-  const Symbol('ZW'),
-  const Symbol('ZX'),
-  const Symbol('ZY'),
-  const Symbol('ZZ'),
-];
diff --git a/tests/language_2/symbol/literal_runtime_1_test.dart b/tests/language_2/symbol/literal_runtime_1_test.dart
deleted file mode 100644
index ff5f0cb35ed..00000000000
--- a/tests/language_2/symbol/literal_runtime_1_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test symbol literals.
-
-library symbol_literal_test;
-
-import 'package:expect/expect.dart';
-
-foo(a, b) => Expect.isTrue(identical(a, b));
-
-var check = foo; // Indirection used to avoid inlining.
-
-testSwitch(Symbol s) {
-  switch (s) {
-    case #abc:
-      return 1;
-    case const Symbol("def"):
-      return 2;
-    default:
-      return 0;
-  }
-}
-
-main() {
-  bool doChecks = false;
-  doChecks = true;
-  if (doChecks) {
-    check(const Symbol("a"), #a);
-    check(const Symbol("a"), #a);
-    check(const Symbol("ab"), #ab);
-    check(const Symbol("ab"), #ab);
-    check(const Symbol("a.b"), #a.b);
-    check(const Symbol("a.b"), #a.b);
-    check(const Symbol("=="), #==);
-    check(const Symbol("=="), #==);
-    check(const Symbol("a.toString"), #a.toString);
-  }
-
-  Expect.equals(1, testSwitch(#abc));
-
-  const m = const <Symbol, int>{#A: 0, #B: 1};
-  Expect.equals(1, m[#B]);
-
-  // Tries to call the symbol literal #a.toString
-
-}
diff --git a/tests/language_2/symbol/literal_runtime_test.dart b/tests/language_2/symbol/literal_runtime_test.dart
deleted file mode 100644
index 945678fa1c8..00000000000
--- a/tests/language_2/symbol/literal_runtime_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test symbol literals.
-
-library symbol_literal_test;
-
-import 'package:expect/expect.dart';
-
-foo(a, b) => Expect.isTrue(identical(a, b));
-
-var check = foo; // Indirection used to avoid inlining.
-
-testSwitch(Symbol s) {
-  switch (s) {
-    case #abc:
-      return 1;
-    case const Symbol("def"):
-      return 2;
-    default:
-      return 0;
-  }
-}
-
-main() {
-  bool doChecks = false;
-
-  if (doChecks) {
-    check(const Symbol("a"), #a);
-    check(const Symbol("a"), #a);
-    check(const Symbol("ab"), #ab);
-    check(const Symbol("ab"), #ab);
-    check(const Symbol("a.b"), #a.b);
-    check(const Symbol("a.b"), #a.b);
-    check(const Symbol("=="), #==);
-    check(const Symbol("=="), #==);
-    check(const Symbol("a.toString"), #a.toString);
-  }
-
-  Expect.equals(1, testSwitch(#abc));
-
-  const m = const <Symbol, int>{#A: 0, #B: 1};
-  Expect.equals(1, m[#B]);
-
-  // Tries to call the symbol literal #a.toString
-
-}
diff --git a/tests/language_2/symbol/literal_test.dart b/tests/language_2/symbol/literal_test.dart
deleted file mode 100644
index ae77cf25ae2..00000000000
--- a/tests/language_2/symbol/literal_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test symbol literals.
-
-library symbol_literal_test;
-
-import 'package:expect/expect.dart';
-
-foo(a, b) => Expect.isTrue(identical(a, b));
-
-var check = foo; // Indirection used to avoid inlining.
-
-testSwitch(Symbol s) {
-  switch (s) {
-    case #abc:
-      return 1;
-    case const Symbol("def"):
-      return 2;
-    default:
-      return 0;
-  }
-}
-
-main() {
-  bool doChecks = false;
-  doChecks = true;
-  if (doChecks) {
-    check(const Symbol("a"), #a);
-    check(const Symbol("a"), #a);
-    check(const Symbol("ab"), #ab);
-    check(const Symbol("ab"), #ab);
-    check(const Symbol("a.b"), #a.b);
-    check(const Symbol("a.b"), #a.b);
-    check(const Symbol("=="), #==);
-    check(const Symbol("=="), #==);
-    check(const Symbol("a.toString"), #a.toString);
-  }
-
-  Expect.equals(1, testSwitch(#abc));
-
-  const m = const <Symbol, int>{#A: 0, #B: 1};
-  Expect.equals(1, m[#B]);
-
-  // Tries to call the symbol literal #a.toString
-  Expect.throwsNoSuchMethodError(() => #a.toString());
-  //                                   ^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVOCATION_OF_NON_FUNCTION_EXPRESSION
-  //                                              ^
-  // [cfe] The method 'call' isn't defined for the class 'Symbol'.
-}
diff --git a/tests/language_2/sync_star/covariant_type_test.dart b/tests/language_2/sync_star/covariant_type_test.dart
deleted file mode 100644
index cad3f94200a..00000000000
--- a/tests/language_2/sync_star/covariant_type_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that TypeErrors happen for sync* methods without creating iterator.
-
-import 'package:expect/expect.dart';
-
-class D<T> {
-  // Parametric covariance check is usually compiled into method.
-  Iterable<T> add(T n) sync* {
-    yield n;
-  }
-}
-
-main() {
-  D<num> d = new D<int>();
-  Expect.throwsTypeError(() => d.add(4.6));
-}
diff --git a/tests/language_2/sync_star/dcall_type_test.dart b/tests/language_2/sync_star/dcall_type_test.dart
deleted file mode 100644
index e783855efbf..00000000000
--- a/tests/language_2/sync_star/dcall_type_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that TypeErrors happen for sync* methods without creating iterator.
-
-import 'package:expect/expect.dart';
-
-Iterable<int> iota(int n) sync* {
-  for (int i = 0; i < n; i++) yield i;
-}
-
-class C {
-  Iterable<int> add(int n) sync* {
-    yield n;
-  }
-}
-
-main() {
-  dynamic f = iota;
-  Expect.throwsTypeError(() => f('ten'));
-  Expect.throwsTypeError(() => f(4.7));
-
-  dynamic o = new C();
-  Expect.throwsTypeError(() => o.add('ten'));
-  Expect.throwsTypeError(() => o.add(4.7));
-}
diff --git a/tests/language_2/sync_star/generator1_runtime_test.dart b/tests/language_2/sync_star/generator1_runtime_test.dart
deleted file mode 100644
index 3b1faa46567..00000000000
--- a/tests/language_2/sync_star/generator1_runtime_test.dart
+++ /dev/null
@@ -1,92 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Simple test program for sync* generator functions.
-
-// VMOptions=--optimization_counter_threshold=10
-
-import "package:expect/expect.dart";
-
-sum10() sync* {
-  var s = 0;
-  for (var k = 1; k <= 10; k++) {
-    s += k;
-    yield s;
-  }
-}
-
-class Range {
-  int start, end;
-  Range(this.start, this.end);
-  elements() sync* {
-    var e = start;
-    while (e <= end) yield e++;
-  }
-
-  get yield sync* {
-    // yield is a legal member name here.
-    var e = start;
-    while (e <= end) yield e++;
-  }
-}
-
-get sync sync* {
-  // sync is a legal identifier.
-  yield "sync";
-}
-
-einsZwei() sync* {
-  yield 1;
-  yield* [2, 3];
-  yield* [];
-  yield 5;
-  yield [6];
-}
-
-dreiVier() sync* {
-  // Throws type error: yielded object is not an iterable.
-
-}
-
-main() {
-  for (int i = 0; i < 10; i++) {
-    var sums = sum10();
-    print(sums);
-    Expect.isTrue(sums is Iterable);
-    Expect.equals(10, sums.length);
-    Expect.equals(1, sums.first);
-    Expect.equals(55, sums.last);
-    var q = "";
-    for (var n in sums.take(3)) {
-      q += "$n ";
-    }
-    Expect.equals("1 3 6 ", q);
-
-    var r = new Range(10, 12);
-    var elems1 = r.elements();
-    print(elems1);
-    var elems2 = r.yield;
-    print(elems2);
-    // Walk the elements of each iterable and compare them.
-    var i = elems1.iterator;
-    Expect.isTrue(i is Iterator);
-    elems2.forEach((e) {
-      Expect.isTrue(i.moveNext());
-      Expect.equals(e, i.current);
-    });
-
-    print(sync);
-    Expect.equals("sync", sync.single);
-
-    print(einsZwei());
-    Expect.equals("(1, 2, 3, 5, [6])", einsZwei().toString());
-
-
-  }
-}
diff --git a/tests/language_2/sync_star/generator1_test.dart b/tests/language_2/sync_star/generator1_test.dart
deleted file mode 100644
index 5bd8a87c02f..00000000000
--- a/tests/language_2/sync_star/generator1_test.dart
+++ /dev/null
@@ -1,92 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Simple test program for sync* generator functions.
-
-// VMOptions=--optimization_counter_threshold=10
-
-import "package:expect/expect.dart";
-
-sum10() sync* {
-  var s = 0;
-  for (var k = 1; k <= 10; k++) {
-    s += k;
-    yield s;
-  }
-}
-
-class Range {
-  int start, end;
-  Range(this.start, this.end);
-  elements() sync* {
-    var e = start;
-    while (e <= end) yield e++;
-  }
-
-  get yield sync* {
-    // yield is a legal member name here.
-    var e = start;
-    while (e <= end) yield e++;
-  }
-}
-
-get sync sync* {
-  // sync is a legal identifier.
-  yield "sync";
-}
-
-einsZwei() sync* {
-  yield 1;
-  yield* [2, 3];
-  yield* [];
-  yield 5;
-  yield [6];
-}
-
-dreiVier() sync* {
-  // Throws type error: yielded object is not an iterable.
-  yield* 3;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.YIELD_OF_INVALID_TYPE
-  // [cfe] A value of type 'int' can't be assigned to a variable of type 'Iterable<dynamic>'.
-}
-
-main() {
-  for (int i = 0; i < 10; i++) {
-    var sums = sum10();
-    print(sums);
-    Expect.isTrue(sums is Iterable);
-    Expect.equals(10, sums.length);
-    Expect.equals(1, sums.first);
-    Expect.equals(55, sums.last);
-    var q = "";
-    for (var n in sums.take(3)) {
-      q += "$n ";
-    }
-    Expect.equals("1 3 6 ", q);
-
-    var r = new Range(10, 12);
-    var elems1 = r.elements();
-    print(elems1);
-    var elems2 = r.yield;
-    print(elems2);
-    // Walk the elements of each iterable and compare them.
-    var i = elems1.iterator;
-    Expect.isTrue(i is Iterator);
-    elems2.forEach((e) {
-      Expect.isTrue(i.moveNext());
-      Expect.equals(e, i.current);
-    });
-
-    print(sync);
-    Expect.equals("sync", sync.single);
-
-    print(einsZwei());
-    Expect.equals("(1, 2, 3, 5, [6])", einsZwei().toString());
-
-    Expect.throws(() => dreiVier().toString());
-  }
-}
diff --git a/tests/language_2/sync_star/generator2_test.dart b/tests/language_2/sync_star/generator2_test.dart
deleted file mode 100644
index 822d3a485e8..00000000000
--- a/tests/language_2/sync_star/generator2_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Simple test program for sync* generator functions.
-
-import "package:expect/expect.dart";
-import "dart:async";
-
-var sync = "topLevelSync";
-var async = "topLevelAsync";
-var await = "topLevelAwait";
-var yield = "topLevelYield";
-
-test01() sync* {
-  var yield = 0; // //# 01: syntax error
-  var await = 0; // //# 02: syntax error
-  bool yield() => false; //# 04: syntax error
-  bool await() => false; //# 05: syntax error
-
-  var x1 = sync;
-  var x3 = await; // //# 08: syntax error
-  var x4 = await 55; // //# 09: compile-time error
-  var x4 = yield; // //# 10: syntax error
-
-  var stream = new Stream.fromIterable([1, 2, 3]);
-  await for (var e in stream) print(e); //  //# 11: compile-time error
-}
-
-test02() sync* {
-  yield 12321;
-  return null; // //# 20: compile-time error
-}
-
-test03() sync* => null; //  //# 30: syntax error
-
-get test04 sync* => null; // //# 40: syntax error
-set test04(a) sync* { print(a); } // //# 41: compile-time error
-
-class K {
-  K() sync* {} // //# 50: compile-time error
-  get nix sync* {}
-  get garnix sync* => null; // //# 51: syntax error
-  set etwas(var z) sync* { } // //# 52: compile-time error
-  sync() sync* {
-    yield sync; // Yields a tear-off of the sync() method.
-  }
-}
-
-main() {
-  var x;
-  x = test01();
-  Expect.equals("()", x.toString());
-  x = test02();
-  test03(); //# 30: continued
-  Expect.equals("(12321)", x.toString());
-  x = test04; // //# 40: continued
-  test04 = x; // //# 41: continued
-  x = new K();
-  print(x.garnix); //# 51: continued
-  x.etwas = null; //# 52: continued
-  print(x.sync().toList());
-  Expect.equals(1, x.sync().length);
-//  Expect.isTrue(x.sync().single is Function);
-}
diff --git a/tests/language_2/sync_star/generator3_test.dart b/tests/language_2/sync_star/generator3_test.dart
deleted file mode 100644
index 15af7829966..00000000000
--- a/tests/language_2/sync_star/generator3_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test program for sync* generator functions and yielding in try blocks.
-
-import "package:expect/expect.dart";
-
-f() sync* {
-  try {
-    yield 1;
-    throw "three";
-  } catch (e) {
-    yield 2;
-    yield e;
-  } finally {
-    yield 4;
-  }
-}
-
-test1() {
-  var s = f().toString();
-  Expect.equals("(1, 2, three, 4)", s);
-  print(s);
-}
-
-g() sync* {
-  try {
-    yield "a";
-    throw "pow!";
-  } finally {
-    yield "b";
-  }
-}
-
-test2() {
-  Iterator i = g().iterator;
-  Expect.isTrue(i.moveNext());
-  Expect.equals("a", i.current);
-  Expect.isTrue(i.moveNext());
-  Expect.equals("b", i.current);
-  Expect.throws(() => i.moveNext(), (error) => error == "pow!");
-}
-
-main() {
-  test1(); // //# test1: ok
-  test2(); // //# test2: ok
-}
diff --git a/tests/language_2/sync_star/less_than_test.dart b/tests/language_2/sync_star/less_than_test.dart
deleted file mode 100644
index 58cbb4c1329..00000000000
--- a/tests/language_2/sync_star/less_than_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2015, the Dart Team. All rights reserved. Use of this
-// source code is governed by a BSD-style license that can be found in
-// the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-confuse(x) => [1, 'x', true, null, x].last;
-
-Iterable<int> foo() sync* {
-  var a = confuse(1);
-  if (a < 10) {
-    yield 2;
-  }
-}
-
-main() {
-  Expect.listEquals([2], foo().toList());
-}
diff --git a/tests/language_2/sync_star/move_past_end_test.dart b/tests/language_2/sync_star/move_past_end_test.dart
deleted file mode 100644
index e389698e4ea..00000000000
--- a/tests/language_2/sync_star/move_past_end_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test program for sync* generator functions that have their iterator moved
-// past the end. Moving past the end should not cause re-execution of parts of
-// the generator.
-
-import "package:expect/expect.dart";
-
-String log = '';
-
-Iterable<int> simpleGenerator() sync* {
-  log += 'a';
-  yield 1;
-  log += 'b';
-  yield 2;
-  log += 'c';
-}
-
-Iterable<int> compoundGenerator() sync* {
-  log += 'X';
-  yield* simpleGenerator();
-  log += 'Y';
-  yield* simpleGenerator();
-  log += 'Z';
-}
-
-void testSimple() {
-  log = '';
-  Expect.equals('12', simpleGenerator().join());
-  Expect.equals('abc', log);
-
-  log = '';
-  final iterator = simpleGenerator().iterator;
-  Expect.isTrue(iterator.moveNext());
-  Expect.isTrue(iterator.moveNext());
-  Expect.isFalse(iterator.moveNext());
-  Expect.isFalse(iterator.moveNext());
-  Expect.isFalse(iterator.moveNext());
-  Expect.equals('abc', log);
-}
-
-void testCompound() {
-  log = '';
-  Expect.equals('1212', compoundGenerator().join());
-  Expect.equals('XabcYabcZ', log);
-
-  log = '';
-  final iterator = compoundGenerator().iterator;
-  Expect.isTrue(iterator.moveNext());
-  Expect.isTrue(iterator.moveNext());
-  Expect.isTrue(iterator.moveNext());
-  Expect.isTrue(iterator.moveNext());
-  Expect.isFalse(iterator.moveNext());
-  Expect.isFalse(iterator.moveNext());
-  Expect.isFalse(iterator.moveNext());
-  Expect.equals('XabcYabcZ', log);
-}
-
-void main() {
-  for (final test in [testSimple, testCompound]) {
-    test();
-  }
-}
diff --git a/tests/language_2/sync_star/nested_subtype_test.dart b/tests/language_2/sync_star/nested_subtype_test.dart
deleted file mode 100644
index 97614a81570..00000000000
--- a/tests/language_2/sync_star/nested_subtype_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2020, the Dart Team. All rights reserved. Use of this
-// source code is governed by a BSD-style license that can be found in
-// the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for: https://github.com/dart-lang/sdk/issues/42234
-
-Iterable<Object> f() sync* {
-  yield* g();
-}
-
-Iterable<int> g() sync* {
-  yield 1;
-  yield 2;
-}
-
-main() {
-  for (var i in f()) {
-    print(i);
-  }
-}
diff --git a/tests/language_2/sync_star/sync_star_exception_current_test.dart b/tests/language_2/sync_star/sync_star_exception_current_test.dart
deleted file mode 100644
index 960f603a1cc..00000000000
--- a/tests/language_2/sync_star/sync_star_exception_current_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:collection';
-import 'package:expect/expect.dart';
-
-class ThrowingCurrentIterator implements Iterator<int> {
-  int _remaining;
-  ThrowingCurrentIterator(this._remaining);
-
-  bool moveNext() => _remaining-- > 0;
-  int get current => throw 'current';
-}
-
-class ThrowingCurrent extends IterableBase<int> {
-  final int _length;
-  ThrowingCurrent(this._length);
-  Iterator<int> get iterator => ThrowingCurrentIterator(_length);
-}
-
-Iterable<int> f1() sync* {
-  yield* ThrowingCurrent(5);
-  yield* ThrowingCurrent(5);
-}
-
-Iterable<int> f2() sync* {
-  yield* f1();
-  yield* f1();
-}
-
-main() {
-  // `IterableBase.length` uses only `moveNext()`.
-  Expect.equals(5, ThrowingCurrent(5).length);
-
-  // The spec dictates that `yield*` calls `moveNext()` and `current` for each
-  // element in order to add the value to the iterable associated with the
-  // generator.
-  final i1 = f1().iterator;
-  Expect.throws(() => i1.moveNext());
-
-  // Further calls to `moveNext()` must return false (17.15).
-  Expect.isFalse(i1.moveNext());
-
-  // Same tests but for nested `yield*`.
-  final i2 = f2().iterator;
-  Expect.throws(() => i2.moveNext());
-  Expect.isFalse(i2.moveNext());
-
-  // Slighly surprising consequence of the specified behavior.
-  Expect.throws(() => f1().length);
-  Expect.throws(() => f2().length);
-}
diff --git a/tests/language_2/sync_star/sync_star_exception_iterator_test.dart b/tests/language_2/sync_star/sync_star_exception_iterator_test.dart
deleted file mode 100644
index e4759f94c2b..00000000000
--- a/tests/language_2/sync_star/sync_star_exception_iterator_test.dart
+++ /dev/null
@@ -1,124 +0,0 @@
-// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-String log = 'uninitialized';
-
-class Throwing extends Iterable<int> {
-  final String path;
-  Throwing(this.path) {
-    log += '[$path]';
-  }
-  Iterator<int> get iterator => throw 'iterator@$path';
-
-  // The following ensure these methods are not used to implement `yield*`.
-  int get length => throw 'length';
-  int elementAt(int i) => throw 'elementAt';
-  void forEach(void Function(int) action) => throw 'forEach';
-}
-
-Iterable<int> f1(String path) sync* {
-  final here = '$path.f1';
-  yield* Throwing('$here.a');
-  yield* Throwing('$here.b');
-  log += '[f1.done]';
-}
-
-Iterable<int> f2(String path) sync* {
-  final here = '$path.f2';
-  try {
-    final p = f1('$here.p');
-    log += '[$here.p.y*1]';
-    yield* p;
-    log += '[$here.p.y*2]';
-
-    yield* f1('$here.q');
-  } catch (e) {
-    log += '[$here.catch:$e]';
-  }
-  yield 100;
-  log += '[$here.done]';
-}
-
-Iterable<int> f3(String path) sync* {
-  final here = '$path.f3';
-  try {
-    yield* Throwing('$here.f');
-    yield* Throwing('$here.g');
-  } catch (e) {
-    log += '[$here.catch:$e]';
-  }
-  log += '[$here.done]';
-}
-
-Iterable<int> f4(String path) sync* {
-  final here = '$path.f4';
-  try {
-    final s = f3('$here.s');
-    log += '[$here.s.y*1]';
-    yield* s;
-    log += '[$here.s.y*2]';
-
-    yield* f3('$here.t');
-  } catch (e) {
-    log += '[$here.catch:$e]';
-  }
-  yield 200;
-  log += '[$here.done]';
-}
-
-main() {
-  // The spec dictates that `yield*` calls `iterator` on the operand. This
-  // implies that any exception thrown by accessing the iterator should happen
-  // as if at the yield* statement.
-
-  {
-    log = '';
-    final iterator = f1('main').iterator;
-    Expect.throws(() => iterator.moveNext());
-    Expect.equals('[main.f1.a]', log);
-    Expect.isFalse(iterator.moveNext());
-    Expect.equals('[main.f1.a]', log);
-  }
-
-  {
-    log = '';
-    final iterator = f2('main').iterator;
-    Expect.isTrue(iterator.moveNext());
-    Expect.equals(100, iterator.current);
-    Expect.equals(
-        '[main.f2.p.y*1][main.f2.p.f1.a][main.f2.catch:iterator@main.f2.p.f1.a]',
-        log);
-    log = '';
-    Expect.isFalse(iterator.moveNext());
-    Expect.equals('[main.f2.done]', log);
-  }
-
-  {
-    log = '';
-    final iterator = f3('main').iterator;
-    Expect.isFalse(iterator.moveNext());
-    Expect.equals(
-        '[main.f3.f][main.f3.catch:iterator@main.f3.f][main.f3.done]', log);
-  }
-
-  {
-    log = '';
-    final iterator = f4('M').iterator;
-    Expect.isTrue(iterator.moveNext());
-    Expect.equals(200, iterator.current);
-    Expect.equals(
-        '[M.f4.s.y*1]'
-        '[M.f4.s.f3.f][M.f4.s.f3.catch:iterator@M.f4.s.f3.f][M.f4.s.f3.done]'
-        '[M.f4.s.y*2]'
-        '[M.f4.t.f3.f][M.f4.t.f3.catch:iterator@M.f4.t.f3.f][M.f4.t.f3.done]',
-        log);
-    log = '';
-    Expect.isFalse(iterator.moveNext());
-    Expect.equals('[M.f4.done]', log);
-  }
-}
diff --git a/tests/language_2/sync_star/sync_star_exception_nested_test.dart b/tests/language_2/sync_star/sync_star_exception_nested_test.dart
deleted file mode 100644
index 0b113659e43..00000000000
--- a/tests/language_2/sync_star/sync_star_exception_nested_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// See: https://github.com/dart-lang/sdk/issues/42466
-
-import 'dart:collection';
-import 'package:expect/expect.dart';
-
-String caughtString;
-
-a() sync* {
-  yield 3;
-  throw 'Throw from a()';
-  yield 4;
-}
-
-b() sync* {
-  yield 2;
-  yield* a();
-  yield 5;
-}
-
-c() sync* {
-  try {
-    yield 1;
-    yield* b();
-    yield 6;
-  } catch (e, st) {
-    caughtString = 'Caught in c()';
-  }
-}
-
-d() sync* {
-  try {
-    yield 0;
-    yield* c();
-    yield 7;
-  } catch (e, st) {
-    caughtString = 'Caught in d()';
-  }
-}
-
-main() {
-  List yields = [];
-  try {
-    for (final e in d()) {
-      yields.add(e);
-    }
-  } catch (e, st) {
-    caughtString = 'Caught in main()';
-  }
-  Expect.equals('Caught in c()', caughtString);
-  Expect.listEquals([0, 1, 2, 3, 7], yields);
-}
diff --git a/tests/language_2/sync_star/sync_star_exception_test.dart b/tests/language_2/sync_star/sync_star_exception_test.dart
deleted file mode 100644
index 54eb32ec8fb..00000000000
--- a/tests/language_2/sync_star/sync_star_exception_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// See: https://github.com/dart-lang/sdk/issues/42466
-
-import 'dart:collection';
-import 'package:expect/expect.dart';
-
-var caughtString;
-
-class AlwaysThrowingIterator implements Iterator<int> {
-  bool moveNext() => throw 'moveNext';
-  int get current => throw 'current';
-}
-
-class AlwaysThrowing extends IterableBase<int> {
-  Iterator<int> get iterator => AlwaysThrowingIterator();
-}
-
-Iterable<int> f() sync* {
-  try {
-    yield* AlwaysThrowing();
-  } catch (e, st) {
-    caughtString = 'caught $e in f';
-  }
-}
-
-void g() {
-  try {
-    for (int x in f()) {
-      print(x);
-    }
-  } catch (e, st) {
-    caughtString = 'caught $e in g';
-  }
-}
-
-main() {
-  g();
-  // The spec dictates that if `e` (moveNext, current) throws then `yield* e`
-  // should throw.
-  // I.e. even though the iteration is happening in `g`, the `yield*` is in `f`
-  // so its catch should trigger.
-  Expect.equals('caught moveNext in f', caughtString);
-}
diff --git a/tests/language_2/sync_star/void_sync_star_test.dart b/tests/language_2/sync_star/void_sync_star_test.dart
deleted file mode 100644
index 1755b6a69eb..00000000000
--- a/tests/language_2/sync_star/void_sync_star_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// It is an error for a `sync*` function to have return type `void`.
-
-/*space*/ void f1() sync* {
-  //      ^^^^
-  // [analyzer] unspecified
-  // [cfe] unspecified
-}
-
-class C {
-  static void f2() sync* {
-    //   ^^^^
-    // [analyzer] unspecified
-    // [cfe] unspecified
-  }
-
-  /*space*/ void f3() sync* {
-    //      ^^^^
-    // [analyzer] unspecified
-    // [cfe] unspecified
-  }
-}
-
-void main() {
-  /*space*/ void f4() sync* {
-    //      ^^^^
-    // [analyzer] unspecified
-    // [cfe] unspecified
-  }
-
-  // No function literal: It is probably not possible to infer the
-  // return type `void` for a function literal marked `sync*`.
-}
diff --git a/tests/language_2/sync_star/yield_star_pause_test.dart b/tests/language_2/sync_star/yield_star_pause_test.dart
deleted file mode 100644
index 82448f567de..00000000000
--- a/tests/language_2/sync_star/yield_star_pause_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-// Regression test for http://dartbug.com/27205
-// If a yield-star completes while the stream is paused, it didn't resume.
-
-main() {
-  asyncTest(() {
-    var c = new Completer();
-    var s = yieldStream(mkStream());
-    var sub;
-    sub = s.listen((v) {
-      sub.pause();
-      print(v);
-      Timer.run(sub.resume);
-    }, onDone: () {
-      print("DONE");
-      c.complete(null);
-    });
-    return c.future;
-  });
-}
-
-Stream yieldStream(Stream s) async* {
-  yield* s;
-}
-
-Stream mkStream() {
-  var s = new StreamController(sync: true);
-  // The close event has to be sent and received between
-  // the pause and resume above.
-  // Using a sync controller and a Timer.run(sub.resume) ensures this.
-  Timer.run(() {
-    s.add("event");
-    s.close();
-  });
-  return s.stream;
-}
diff --git a/tests/language_2/sync_star/yield_test.dart b/tests/language_2/sync_star/yield_test.dart
deleted file mode 100644
index 5484a134811..00000000000
--- a/tests/language_2/sync_star/yield_test.dart
+++ /dev/null
@@ -1,108 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// TODO(jmesserly): this is a copy of the language test of the same name,
-// we can remove this copy when we're running against those tests.
-import "package:expect/expect.dart";
-
-Iterable<int> foo1() sync* {
-  yield 1;
-}
-
-Iterable<int> foo2(p) sync* {
-  bool t = false;
-  yield null;
-  while (true) {
-    a:
-    for (int i = 0; i < p; i++) {
-      if (!t) {
-        for (int j = 0; j < 3; j++) {
-          yield -1;
-          t = true;
-          break a;
-        }
-      }
-      yield i;
-    }
-  }
-}
-
-// p is copied to all Iterators from the Iterable returned by foo3.
-// Also each iterator will have its own i.
-Iterable<int> foo3(int p) sync* {
-  int i = 0;
-  i++;
-  p++;
-  yield p + i;
-}
-
-void testCapturingInSyncStar() {
-  int localL0 = 0;
-
-  nested1(int paramL1) sync* {
-    int localL1 = 0;
-    localL0 += 10;
-    paramL1 += 100;
-
-    nested2(int paramL2) sync* {
-      int localL2 = 0;
-      localL0 += 1000;
-      paramL1 += 10000;
-      localL1 += 100000;
-      paramL2 += 1000000;
-      localL2 += 10000000;
-
-      yield localL0 + paramL1 + localL1 + paramL2 + localL2;
-    }
-
-    yield nested2(0);
-  }
-
-  Iterable t1 = nested1(0);
-
-  Iterator it11 = t1.iterator;
-  Iterator it12 = t1.iterator;
-  it11.moveNext();
-  it12.moveNext();
-
-  Iterable t2 = it11.current;
-  Iterable t3 = it12.current;
-  Iterator it21 = t2.iterator;
-  Iterator it22 = t2.iterator;
-  Iterator it31 = t3.iterator;
-  Iterator it32 = t3.iterator;
-
-  it21.moveNext();
-  it22.moveNext();
-  it31.moveNext();
-  it32.moveNext();
-
-  Expect.equals(11111120, it21.current);
-  Expect.equals(11222120, it22.current);
-  Expect.equals(11113120, it31.current);
-  Expect.equals(11224120, it32.current);
-}
-
-main() {
-  Expect.listEquals([1], foo1().toList());
-  Expect.listEquals(
-      [null, -1, 0, 1, 2, 3, 0, 1, 2, 3], foo2(4).take(10).toList());
-  Iterable t = foo3(0);
-  Iterator it1 = t.iterator;
-  Iterator it2 = t.iterator; //# copyParameters: ok
-  it1.moveNext();
-  it2.moveNext(); //# copyParameters: continued
-  Expect.equals(2, it1.current);
-  // TODO(sigurdm): Check up on the spec here.
-  Expect.equals(2, it2.current); // //# copyParameters: continued
-  Expect.isFalse(it1.moveNext());
-  // Test that two `moveNext()` calls are fine.
-  Expect.isFalse(it1.moveNext());
-  Expect.isFalse(it2.moveNext()); //# copyParameters: continued
-  Expect.isFalse(it2.moveNext()); //# copyParameters: continued
-
-  testCapturingInSyncStar(); //# capturing: ok
-}
diff --git a/tests/language_2/sync_star/yieldstar_test.dart b/tests/language_2/sync_star/yieldstar_test.dart
deleted file mode 100644
index 703188a278f..00000000000
--- a/tests/language_2/sync_star/yieldstar_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// TODO(jmesserly): this is a copy of the language test of the same name,
-// we can remove this copy when we're running against those tests.
-import "package:expect/expect.dart";
-
-bar() sync* {
-  int i = 1;
-  int j = 1;
-  while (true) {
-    yield i;
-    j = i + j;
-    i = j - i;
-  }
-}
-
-foo() sync* {
-  yield* [1, 2, 3];
-  yield null;
-  // TODO(jmesserly): added cast here to work around:
-  // https://codereview.chromium.org/1213503002/
-  yield* bar() as Iterable;
-}
-
-main() async {
-  Expect.listEquals([1, 2, 3, null, 1, 1, 2, 3, 5], foo().take(9).toList());
-}
diff --git a/tests/language_2/syntax/deep_nesting_expression_test.dart b/tests/language_2/syntax/deep_nesting_expression_test.dart
deleted file mode 100644
index a0fff3e6ec9..00000000000
--- a/tests/language_2/syntax/deep_nesting_expression_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Deeply nested expression must not crash compiler due to stack overflow.
-
-main() {
-  var x =
-[
-[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[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//# 01: ok, compile-time error
-];
-  print('okay');
-}
diff --git a/tests/language_2/syntax/deep_nesting_statement_test.dart b/tests/language_2/syntax/deep_nesting_statement_test.dart
deleted file mode 100644
index 883d3d4ab73..00000000000
--- a/tests/language_2/syntax/deep_nesting_statement_test.dart
+++ /dev/null
@@ -1,10015 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Deeply nested statements must not crash compiler due to stack overflow.
-
-var x = 0;
-
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-  if (x == 0) { //# 01: continued
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-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  if (x == 0) { //# 01: continued
-  }}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} //# 01: continued
-  }
-  print("survived!");
-}
diff --git a/tests/language_2/syntax/nested_comments_test.dart b/tests/language_2/syntax/nested_comments_test.dart
deleted file mode 100644
index b3f7dcfa2f8..00000000000
--- a/tests/language_2/syntax/nested_comments_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program testing nested comments
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// /* nested comment */
-/*// nested comment */
-/*/* nested comment */*/
-/* entire function
-void main() {
-  /* nested comment */
-  Expect.isTrue(false); // nested
-}
-*/
-
-/**
- test documentation
- /* nested comment */
-*/
-main() {
-  Expect.isTrue(true);
-}
diff --git a/tests/language_2/syntax/pre_nnbd_modifiers_test.dart b/tests/language_2/syntax/pre_nnbd_modifiers_test.dart
deleted file mode 100644
index ef1224dfe8e..00000000000
--- a/tests/language_2/syntax/pre_nnbd_modifiers_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test ensures that the modifiers added as part of NNBD are not enabled
-// until NNBD is enabled by default. At that time, this test should be removed.
-
-// [NNBD non-migrated] Note: This test is specific to legacy mode and
-// deliberately does not have a counter-part in language/.
-
-import 'package:expect/expect.dart';
-
-class late {
-  int get g => 1;
-}
-
-class required {
-  int get g => 2;
-}
-
-class C {
-  late l = late();
-  required r = required();
-}
-
-main() {
-  Expect.equals(C().l.g, 1);
-  Expect.equals(C().r.g, 2);
-}
diff --git a/tests/language_2/syntax/statement_test.dart b/tests/language_2/syntax/statement_test.dart
deleted file mode 100644
index 3ea3f77caa7..00000000000
--- a/tests/language_2/syntax/statement_test.dart
+++ /dev/null
@@ -1,225 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Tests all statement types. Not an exhaustive test of all statement semantics.
-class StatementTest {
-  StatementTest() {}
-
-  static testMain() {
-    var test = new StatementTest();
-    test.testIfStatement();
-    test.testForLoop();
-    test.testWhileLoops();
-    test.testSwitch();
-    test.testExceptions();
-    test.testBreak();
-    test.testContinue();
-    test.testFunction();
-    test.testReturn();
-  }
-
-  testIfStatement() {
-    // Basic if statements.
-    if (true) {
-      Expect.equals(true, true);
-    } else {
-      Expect.equals(false, true);
-    }
-
-    if (false) {
-      Expect.equals(false, true);
-    } else {
-      Expect.equals(true, true);
-    }
-  }
-
-  testForLoop() {
-    int count = 0, count2;
-
-    // Basic for loop.
-    for (int i = 0; i < 10; ++i) {
-      ++count;
-    }
-    Expect.equals(10, count);
-
-    // For loop with no 'var'.
-    count2 = 0;
-    for (count = 0; count < 5; ++count) {
-      ++count2;
-    }
-    Expect.equals(5, count);
-    Expect.equals(5, count2);
-
-    // For loop with no initializer.
-    count = count2 = 0;
-    for (; count < 10; ++count) {
-      ++count2;
-    }
-    Expect.equals(10, count);
-    Expect.equals(10, count2);
-
-    // For loop with no increment.
-    for (count = 0; count < 5;) {
-      ++count;
-    }
-    Expect.equals(5, count);
-
-    // For loop with no test.
-    for (count = 0;; ++count) {
-      if (count == 10) {
-        break;
-      }
-    }
-    Expect.equals(10, count);
-
-    // For loop with no nothing.
-    count = 0;
-    for (;;) {
-      if (count == 5) {
-        break;
-      }
-      ++count;
-    }
-    Expect.equals(5, count);
-  }
-
-  testWhileLoops() {
-    // Basic while loop.
-    int count = 0;
-    while (count < 10) {
-      ++count;
-    }
-    Expect.equals(10, count);
-
-    // Basic do loop.
-    count = 0;
-    do {
-      ++count;
-    } while (count < 5);
-    Expect.equals(5, count);
-  }
-
-  testSwitch() {
-    // Int switch.
-    bool hit0, hit1, hitDefault;
-    for (int x = 0; x < 3; ++x) {
-      switch (x) {
-        case 0:
-          hit0 = true;
-          break;
-        case 1:
-          hit1 = true;
-          break;
-        default:
-          hitDefault = true;
-          break;
-      }
-    }
-    Expect.equals(true, hit0);
-    Expect.equals(true, hit1);
-    Expect.equals(true, hitDefault);
-
-    // String switch.
-    var strings = ['a', 'b', 'c'];
-    bool hitA, hitB;
-    hitDefault = false;
-    for (int x = 0; x < 3; ++x) {
-      switch (strings[x]) {
-        case 'a':
-          hitA = true;
-          break;
-        case 'b':
-          hitB = true;
-          break;
-        default:
-          hitDefault = true;
-          break;
-      }
-    }
-    Expect.equals(true, hitA);
-    Expect.equals(true, hitB);
-    Expect.equals(true, hitDefault);
-  }
-
-  testExceptions() {
-    // TODO(jgw): Better tests once all the exception semantics are worked out.
-    bool hitCatch, hitFinally;
-    try {
-      throw "foo";
-    } catch (e) {
-      Expect.equals(true, e == "foo");
-      hitCatch = true;
-    } finally {
-      hitFinally = true;
-    }
-
-    Expect.equals(true, hitCatch);
-    Expect.equals(true, hitFinally);
-  }
-
-  testBreak() {
-    var ints = [
-      [32, 87, 3, 589],
-      [12, 1076, 2000, 8],
-      [622, 127, 77, 955]
-    ];
-    int i, j = 0;
-    bool foundIt = false;
-
-    search:
-    for (i = 0; i < ints.length; i++) {
-      for (j = 0; j < ints[i].length; j++) {
-        if (ints[i][j] == 12) {
-          foundIt = true;
-          break search;
-        }
-      }
-    }
-    Expect.equals(true, foundIt);
-  }
-
-  testContinue() {
-    String searchMe = "Look for a substring in me";
-    String substring = "sub";
-    bool foundIt = false;
-    int max = searchMe.length - substring.length;
-
-    test:
-    for (int i = 0; i <= max; i++) {
-      int n = substring.length;
-      int j = i;
-      int k = 0;
-      while (n-- != 0) {
-        if (searchMe[j++] != substring[k++]) {
-          continue test;
-        }
-      }
-      foundIt = true;
-      break test;
-    }
-  }
-
-  testFunction() {
-    int foo() {
-      return 42;
-    }
-
-    Expect.equals(42, foo());
-  }
-
-  void testReturn() {
-    if (true) {
-      return;
-    }
-    Expect.equals(true, false);
-  }
-}
-
-main() {
-  StatementTest.testMain();
-}
diff --git a/tests/language_2/syntax/syntax_test.dart b/tests/language_2/syntax/syntax_test.dart
deleted file mode 100644
index 61e87630792..00000000000
--- a/tests/language_2/syntax/syntax_test.dart
+++ /dev/null
@@ -1,257 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class SyntaxTest {
-  // "this" cannot be used as a field name.
-  SyntaxTest this; //# 01: syntax error
-
-  // Syntax error.
-  foo {} //# 02: syntax error
-
-  // Syntax error.
-  static foo {} //# 03: syntax error
-
-  // Syntax error.
-  operator +=() {} //# 04: syntax error
-
-  // Syntax error.
-  operator -=() {} //# 05: syntax error
-
-  // Syntax error.
-  operator *=() {} //# 06: syntax error
-
-  // Syntax error.
-  operator /=() {} //# 07: syntax error
-
-  // Syntax error.
-  operator ~/=() {} //# 08: syntax error
-
-  // Syntax error.
-  operator %=() {} //# 09: syntax error
-
-  // Syntax error.
-  operator <<=() {} //# 10: syntax error
-
-  // Syntax error.
-  operator >>=() {} //# 11: syntax error
-
-  // Syntax error.
-  operator >>>=() {} //# 12: syntax error
-
-  // Syntax error.
-  operator &=() {} //# 13: syntax error
-
-  // Syntax error.
-  operator ^=() {} //# 14: syntax error
-
-  // Syntax error.
-  operator |=() {} //# 15: syntax error
-
-  // Syntax error.
-  operator ?() {} //# 16: syntax error
-
-  // Syntax error.
-  operator ||() {} //# 17: syntax error
-
-  // Syntax error.
-  operator &&() {} //# 18: syntax error
-
-  // Syntax error.
-  operator !=() {} //# 19: syntax error
-
-  // Syntax error.
-  operator ===() {} //# 20: syntax error
-
-  // Syntax error.
-  operator !==() {} //# 21: syntax error
-
-  // Syntax error.
-  operator is() {} //# 22: syntax error
-
-  // Syntax error.
-  operator !() {} //# 23: syntax error
-
-  // Syntax error.
-  operator ++() {} //# 24: syntax error
-
-  // Syntax error.
-  operator --() {} //# 25: syntax error
-
-  // Syntax error.
-  bool operator ===(A other) { return true; } //# 26: syntax error
-
-  int sample;
-}
-
-fisk {} //# 27: syntax error
-
-class DOMWindow {}
-
-class Window extends DOMWindow
-native "*Window" //# 28: syntax error
-{}
-
-class Console
-native "=(typeof console == 'undefined' ? {} : console)" //# 29: syntax error
-{}
-
-class NativeClass
-native "FooBar" //# 30: syntax error
-{}
-
-abstract class Fisk {}
-
-class BoolImplementation implements Fisk
-native "Boolean" //# 31: syntax error
-{}
-
-class _JSON
-native 'JSON' //# 32: syntax error
-{}
-
-class ListFactory<E> implements List<E>
-native "Array" //# 33: syntax error
-{
-  noSuchMethod(_) => null; // Allow unimplemented methods
-}
-
-abstract class I implements UNKNOWN; //# 34: syntax error
-
-class XWindow extends DOMWindow
-hest "*Window" //# 35: syntax error
-{}
-
-class XConsole
-hest "=(typeof console == 'undefined' ? {} : console)" //# 36: syntax error
-{}
-
-class XNativeClass
-hest "FooBar" //# 37: syntax error
-{}
-
-class XBoolImplementation implements Fisk
-hest "Boolean" //# 38: syntax error
-{}
-
-class _JSONX
-hest 'JSON' //# 39: syntax error
-{}
-
-class XListFactory<E> implements List<E>
-hest "Array" //# 40: syntax error
-{
-  noSuchMethod(_) => null; // Allow unimplemented methods
-}
-
-class YWindow extends DOMWindow
-for "*Window" //# 41: syntax error
-{}
-
-class YConsole
-for "=(typeof console == 'undefined' ? {} : console)" //# 42: syntax error
-{}
-
-class YNativeClass
-for "FooBar" //# 43: syntax error
-{}
-
-class YBoolImplementation implements Fisk
-for "Boolean" //# 44: syntax error
-{}
-
-class _JSONY
-for 'JSON' //# 45: syntax error
-{}
-
-class YListFactory<E> implements List<E>
-for "Array" //# 46: syntax error
-{
-  noSuchMethod(_) => null; // Allow unimplemented methods
-}
-
-class A {
-  const A()
-  {} //# 47: syntax error
-  ;
-}
-
-abstract class G<T> {}
-
-typedef <T>(); //# 48: syntax error
-
-class B
-extends void //# 49: syntax error
-{}
-
-main() {
-  try {
-    new SyntaxTest();
-    new SyntaxTest().foo(); //# 02: continued
-    SyntaxTest.foo(); //# 03: continued
-    fisk(); //# 27: continued
-
-    new Window();
-    new Console();
-    new NativeClass();
-    new BoolImplementation();
-    new _JSON();
-    new ListFactory();
-    new ListFactory<Object>();
-    var x = null;
-    x is I; //# 34: continued
-
-    new XConsole();
-    new XNativeClass();
-    new XBoolImplementation();
-    new _JSONX();
-    new XListFactory();
-    new XListFactory<Object>();
-
-    new YConsole();
-    new YNativeClass();
-    new YBoolImplementation();
-    new _JSONY();
-    new YListFactory();
-    new YListFactory<Object>();
-
-    futureOf(x) {}
-    if (!(fisk futureOf(false))) {} //# 50: syntax error
-    if (!(await futureOf(false))) {} //# 51: compile-time error
-
-    void f{} //# 52: syntax error
-    G<int double> g; //# 53: syntax error
-    f(void) {}; //# 54: syntax error
-
-    optionalArg([x]) {}
-    optionalArg(
-      void (var i) {} //# 55: syntax error
-        );
-
-    function __PROTO__$(...args) { return 12; } //# 56: syntax error
-    G<> t; //# 57: syntax error
-    G<null> t; //# 58: syntax error
-    A<void> a = null; //# 59: compile-time error
-    void v; //# 60: ok
-    void v = null; //# 61: ok
-    print(null is void); //# 62: syntax error
-    new A();
-    new B();
-
-    new Bad();
-
-    1 + 2 = 1; //# 63: syntax error
-    new SyntaxTest() = 1; //# 64: syntax error
-    futureOf(null) = 1; //# 65: syntax error
-
-  } catch (ex) {
-    // Swallowing exceptions. Any error should be a compile-time error
-    // which kills the current isolate.
-  }
-}
-
-class Bad {
-  factory Bad<Bad(String type) { return null; } //# 63: syntax error
-}
diff --git a/tests/language_2/syntax/unbalanced_brace_test.dart b/tests/language_2/syntax/unbalanced_brace_test.dart
deleted file mode 100644
index 659ecdd7a56..00000000000
--- a/tests/language_2/syntax/unbalanced_brace_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test syntax errors related to unterminated braces.
-
-class A {
-  m() {
-  /* //# 01: syntax error
-  }
-  // */
-
-/* //# 02: syntax error
-}
-// */
-
-class B {}
-
-main() {
-  new A();
-  new B();
-}
diff --git a/tests/language_2/syntax_helper.dart b/tests/language_2/syntax_helper.dart
deleted file mode 100644
index f4965b48ef6..00000000000
--- a/tests/language_2/syntax_helper.dart
+++ /dev/null
@@ -1,138 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:convert';
-
-import "package:expect/expect.dart";
-
-/// Helper class for determining when no argument is passed to a function.
-class Absent {
-  const Absent();
-}
-
-const absent = Absent();
-
-/// Returns an approximate representation of the syntax that was used to
-/// construct [x].  Extra parentheses are used around unary and binary
-/// expressions to disambiguate precedence.
-String syntax(Object x) {
-  var knownSyntax = SyntaxTracker.known[x];
-  if (knownSyntax != null) return knownSyntax;
-  if (x is SyntaxTracker || x is num) {
-    return x.toString();
-  } else if (x is List) {
-    return '[${x.map(syntax).join(', ')}]';
-  } else if (x is Set) {
-    if (x.isEmpty) return 'Set()';
-    return '{${x.map(syntax).join(', ')}}';
-  } else if (x is Map) {
-    if (x.isEmpty) return '{}';
-    var entries = x.entries
-        .map((entry) => '${syntax(entry.key)}: ${syntax(entry.value)}');
-    return '{ ${entries.join(', ')} }';
-  } else if (x is String) {
-    return json.encode(x);
-  } else {
-    throw UnimplementedError('Unknown syntax for $x.  '
-        'Consider adding to `SyntaxTracker.known`.');
-  }
-}
-
-/// Instances of this class record the syntax of operations performed on them.
-class SyntaxTracker {
-  final String _syntax;
-
-  SyntaxTracker(this._syntax);
-
-  String toString() => _syntax;
-
-  static String args([Object x = absent, Object y = absent]) =>
-      '(${[x, y].where((v) => v is! Absent).join(', ')})';
-
-  static String typeArgs(Type T, Type U) =>
-      T == dynamic && U == dynamic ? '' : '<${syntax(T)}, ${syntax(U)}>';
-
-  /// Simple objects with known syntactic representations.  Tests can add to
-  /// this map.
-  static Map<Object, String> known = {
-    true: 'true',
-    false: 'false',
-    null: 'null'
-  };
-}
-
-/// Extension allowing us to detect the syntax of most operations performed on
-/// arbitrary types.
-extension SyntaxTrackingExtension on Object {
-  Object method<T, U>([Object x = absent, Object y = absent]) => SyntaxTracker(
-      '${syntax(this)}.method${SyntaxTracker.typeArgs(T, U)}${SyntaxTracker.args(x, y)}');
-
-  Object call<T, U>([Object x = absent, Object y = absent]) => SyntaxTracker(
-      '${syntax(this)}${SyntaxTracker.typeArgs(T, U)}${SyntaxTracker.args(x, y)}');
-
-  Object get getter => SyntaxTracker('${syntax(this)}.getter');
-
-  Object operator [](Object index) =>
-      SyntaxTracker('${syntax(this)}[${syntax(index)}]');
-
-  Object operator -() => SyntaxTracker('(-${syntax(this)})');
-
-  Object operator ~() => SyntaxTracker('(~${syntax(this)})');
-
-  Object operator *(Object other) =>
-      SyntaxTracker('(${syntax(this)} * ${syntax(other)})');
-
-  Object operator /(Object other) =>
-      SyntaxTracker('(${syntax(this)} / ${syntax(other)})');
-
-  Object operator ~/(Object other) =>
-      SyntaxTracker('(${syntax(this)} ~/ ${syntax(other)})');
-
-  Object operator %(Object other) =>
-      SyntaxTracker('(${syntax(this)} % ${syntax(other)})');
-
-  Object operator +(Object other) =>
-      SyntaxTracker('(${syntax(this)} + ${syntax(other)})');
-
-  Object operator -(Object other) =>
-      SyntaxTracker('(${syntax(this)} - ${syntax(other)})');
-
-  Object operator <<(Object other) =>
-      SyntaxTracker('(${syntax(this)} << ${syntax(other)})');
-
-  Object operator >>(Object other) =>
-      SyntaxTracker('(${syntax(this)} >> ${syntax(other)})');
-
-  Object operator &(Object other) =>
-      SyntaxTracker('(${syntax(this)} & ${syntax(other)})');
-
-  Object operator ^(Object other) =>
-      SyntaxTracker('(${syntax(this)} ^ ${syntax(other)})');
-
-  Object operator |(Object other) =>
-      SyntaxTracker('(${syntax(this)} | ${syntax(other)})');
-
-  Object operator <(Object other) =>
-      SyntaxTracker('(${syntax(this)} < ${syntax(other)})');
-
-  Object operator >(Object other) =>
-      SyntaxTracker('(${syntax(this)} > ${syntax(other)})');
-
-  Object operator <=(Object other) =>
-      SyntaxTracker('(${syntax(this)} <= ${syntax(other)})');
-
-  Object operator >=(Object other) =>
-      SyntaxTracker('(${syntax(this)} >= ${syntax(other)})');
-}
-
-void checkSyntax(Object x, String expectedSyntax) {
-  Expect.equals(expectedSyntax, syntax(x));
-}
-
-Object f<T, U>([Object x = absent, Object y = absent]) => SyntaxTracker(
-    'f${SyntaxTracker.typeArgs(T, U)}${SyntaxTracker.args(x, y)}');
-
-Object x = SyntaxTracker('x');
diff --git a/tests/language_2/this/as_covariant_call_checks_test.dart b/tests/language_2/this/as_covariant_call_checks_test.dart
deleted file mode 100644
index 077b53a494c..00000000000
--- a/tests/language_2/this/as_covariant_call_checks_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// VMOptions=--no-background-compilation --optimization-counter-threshold=10
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  T field;
-
-  @pragma('vm:never-inline')
-  set property(T v) {}
-
-  @pragma('vm:never-inline')
-  void method(T x) {}
-
-  @pragma('vm:never-inline')
-  void testMethod(bool violateType) {
-    A<dynamic> x = this;
-    x.method(violateType ? 10 : "10");
-  }
-
-  @pragma('vm:never-inline')
-  void testSetter(bool violateType) {
-    A<dynamic> x = this;
-    x.property = violateType ? 10 : "10";
-  }
-
-  @pragma('vm:never-inline')
-  void testField(bool violateType) {
-    A<dynamic> x = this;
-    x.field = violateType ? 10 : "10";
-  }
-}
-
-@pragma('vm:never-inline')
-void loop(A<String> obj, bool violateType) {
-  for (var i = 0; i < 100; i++) {
-    obj.testMethod(violateType);
-    obj.testSetter(violateType);
-    obj.testField(violateType);
-  }
-}
-
-void main() {
-  A<num>().field = 10;
-  final obj = A<String>();
-  loop(obj, false);
-  loop(obj, false);
-  Expect.throwsTypeError(() => obj.testMethod(true));
-  Expect.throwsTypeError(() => obj.testSetter(true));
-  Expect.throwsTypeError(() => obj.testField(true));
-}
diff --git a/tests/language_2/this/as_dynamic_call_checks_test.dart b/tests/language_2/this/as_dynamic_call_checks_test.dart
deleted file mode 100644
index c1e34eea3fa..00000000000
--- a/tests/language_2/this/as_dynamic_call_checks_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// VMOptions=--no-background-compilation --optimization-counter-threshold=10
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  T field;
-
-  @pragma('vm:never-inline')
-  set property(T v) {}
-
-  @pragma('vm:never-inline')
-  void method(T x) {}
-
-  @pragma('vm:never-inline')
-  void testMethod({bool violateType: false}) {
-    dynamic x = this;
-    x.method(violateType ? 10 : "10");
-  }
-
-  @pragma('vm:never-inline')
-  void testSetter({bool violateType: false}) {
-    dynamic x = this;
-    x.property = violateType ? 10 : "10";
-  }
-
-  @pragma('vm:never-inline')
-  void testField({bool violateType: false}) {
-    dynamic x = this;
-    x.field = violateType ? 10 : "10";
-  }
-}
-
-@pragma('vm:never-inline')
-void loop(A<String> obj, {bool violateType: false}) {
-  for (var i = 0; i < 100; i++) {
-    obj.testMethod(violateType: violateType);
-    obj.testSetter(violateType: violateType);
-    obj.testField(violateType: violateType);
-  }
-}
-
-void main() {
-  final obj = A<String>();
-  loop(obj, violateType: false);
-  loop(obj, violateType: false);
-  Expect.throwsTypeError(() => obj.testMethod(violateType: true));
-  Expect.throwsTypeError(() => obj.testSetter(violateType: true));
-  Expect.throwsTypeError(() => obj.testField(violateType: true));
-}
diff --git a/tests/language_2/this/call_this_test.dart b/tests/language_2/this/call_this_test.dart
deleted file mode 100644
index 00586a7e271..00000000000
--- a/tests/language_2/this/call_this_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that dart2js treats [:this():] as a closure send.
-
-import "package:expect/expect.dart";
-
-class A {
-  call() => 42;
-  test1() => this();
-  test2() => (this)();
-}
-
-main() {
-  Expect.equals(42, (new A()).test1());
-  Expect.equals(42, (new A()).test2());
-}
diff --git a/tests/language_2/this/conditional_operator_runtime_test.dart b/tests/language_2/this/conditional_operator_runtime_test.dart
deleted file mode 100644
index 4db87724bf8..00000000000
--- a/tests/language_2/this/conditional_operator_runtime_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Verify that the ?. operator cannot be used for forwarding "this"
-// constructors.
-
-class B {
-  B();
-  B.namedConstructor();
-  var field = 1;
-  method() => 1;
-
-  B.forward()
-
-  ;
-
-  test() {
-    this?.field = 1;
-    this?.field += 1;
-    this?.field;
-    this?.method();
-  }
-}
-
-main() {
-  new B.forward().test();
-}
diff --git a/tests/language_2/this/conditional_operator_test.dart b/tests/language_2/this/conditional_operator_test.dart
deleted file mode 100644
index 98016a28c1b..00000000000
--- a/tests/language_2/this/conditional_operator_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that the ?. operator cannot be used for forwarding "this"
-// constructors.
-
-class B {
-  B();
-  B.namedConstructor();
-  var field = 1;
-  method() => 1;
-
-  B.forward()
-    : this?.namedConstructor()
-    //^^^^
-    // [analyzer] COMPILE_TIME_ERROR.INVALID_REFERENCE_TO_THIS
-    // [analyzer] SYNTACTIC_ERROR.MISSING_ASSIGNMENT_IN_INITIALIZER
-    //^^^^^^^^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.INITIALIZER_FOR_NON_EXISTENT_FIELD
-    // [cfe] Expected an assignment after the field name.
-    //    ^^
-    // [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-    // [cfe] Expected '.' before this.
-    // [cfe] Expected an identifier, but got ''.
-  ;
-
-  test() {
-    this?.field = 1;
-    this?.field += 1;
-    this?.field;
-    this?.method();
-  }
-}
-
-main() {
-  new B.forward().test();
-}
diff --git a/tests/language_2/this/implicit_runtime_test.dart b/tests/language_2/this/implicit_runtime_test.dart
deleted file mode 100644
index b244f612e84..00000000000
--- a/tests/language_2/this/implicit_runtime_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-abstract class Interface {
-  final x;
-  Interface(this.x);
-}
-
-abstract class Abstract implements Interface {
-  String toString() => x.toString();
-}
-
-// This class does not implement "x" either, but it is not marked
-// abstract.
-
-
-// This class does not implement "x", but is itself abstract, so that's OK.
-abstract class SubAbstract2 extends Abstract {
-  get x; // Abstract.
-}
-
-// This class does not implement "x" either, but it is not marked
-// abstract.
-
-
-class Concrete extends Abstract {
-  get x => 7;
-}
-
-class SubConcrete extends Concrete {
-  final x;
-  SubConcrete(this.x);
-}
-
-void main() {
-
-  Expect.equals('7', new Concrete().toString());
-  Expect.equals('42', new SubConcrete(42).toString());
-  Expect.equals('7', new SubConcrete(new Concrete()).toString());
-}
diff --git a/tests/language_2/this/implicit_this_test.dart b/tests/language_2/this/implicit_this_test.dart
deleted file mode 100644
index e830d15148a..00000000000
--- a/tests/language_2/this/implicit_this_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class Interface {
-  final x;
-  Interface(this.x);
-}
-
-abstract class Abstract implements Interface {
-  String toString() => x.toString();
-}
-
-// This class does not implement "x" either, but it is not marked
-// abstract.
-class SubAbstract1 extends Abstract {}
-//    ^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER
-// [cfe] The non-abstract class 'SubAbstract1' is missing implementations for these members:
-
-// This class does not implement "x", but is itself abstract, so that's OK.
-abstract class SubAbstract2 extends Abstract {
-  get x; // Abstract.
-}
-
-// This class does not implement "x" either, but it is not marked
-// abstract.
-class SubSubAbstract2 extends SubAbstract2 {}
-//    ^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NON_ABSTRACT_CLASS_INHERITS_ABSTRACT_MEMBER
-// [cfe] The non-abstract class 'SubSubAbstract2' is missing implementations for these members:
-
-class Concrete extends Abstract {
-  get x => 7;
-}
-
-class SubConcrete extends Concrete {
-  final x;
-  SubConcrete(this.x);
-}
-
-void main() {
-  new Abstract();
-  //  ^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INSTANTIATE_ABSTRACT_CLASS
-  // [cfe] The class 'Abstract' is abstract and can't be instantiated.
-  Expect.equals('7', new Concrete().toString());
-  Expect.equals('42', new SubConcrete(42).toString());
-  Expect.equals('7', new SubConcrete(new Concrete()).toString());
-}
diff --git a/tests/language_2/this/in_initializer_test.dart b/tests/language_2/this/in_initializer_test.dart
deleted file mode 100644
index a1e3ff9048c..00000000000
--- a/tests/language_2/this/in_initializer_test.dart
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  static var s = "something";
-  var a = "anything";
-  var x;
-
-  foo() => null;
-  bar(var y) => y;
-  static sfoo() => null;
-  static sbar(var y) => y;
-
-  A.next();
-
-  A(); //# 00: ok
-  A() : this.next(); //# 01: ok
-
-  A() : x = s; //# 02: ok
-  A() : x = sfoo(); //# 03: ok
-  A() : x = sbar(null); //# 04: ok
-  A() : x = a; //# 05: compile-time error
-  A() : x = foo(); //# 06: compile-time error
-  A() : x = bar(null); //# 07: compile-time error
-  A() : x = bar(this); //# 08: compile-time error
-  A() : x = this; //# 09: compile-time error
-  A() : x = this.a; //# 10: compile-time error
-  A() : x = this.foo(); //# 11: compile-time error
-  A() : x = this.bar(null); //# 12: compile-time error
-  A() : x = this.bar(this); //# 13: compile-time error
-  A() : x = sbar(this); //# 14: compile-time error
-  A() : x = sbar(this.a); //# 15: compile-time error
-  A() : x = sbar(this.foo()); //# 16: compile-time error
-  A() : x = sbar(this.bar(null)); //# 17: compile-time error
-  A() : x = sbar(this.bar(this)); //# 18: compile-time error
-
-  A() : this.x = (() => null); //# 19: ok
-  A() : this.x = (() => s)(); //# 20: ok
-  A() : this.x = ((c) => c); //# 21: ok
-  A() : this.x = ((c) => s)(null); //# 22: ok
-  A() : this.x = ((c) => c)(this); //# 23: compile-time error
-  A() : this.x = (() => this); //# 24: compile-time error
-  A() : this.x = (() => this.a)(); //# 25: compile-time error
-  A() : this.x = ((c) => this.foo()); //# 26: compile-time error
-  A() : this.x = ((c) => a)(null); //# 27: compile-time error
-  A() : this.x = ((c) => foo())(s); //# 28: compile-time error
-  A() : this.x = sbar((() { return null; })); //# 29: ok
-  A() : this.x = sbar((() { return s; })()); //# 30: ok
-  A() : this.x = sbar(((c) { return c; })); //# 31: ok
-  A() : this.x = sbar(((c) { return s; })(null)); //# 32: ok
-  A() : this.x = sbar(((c) { return c; })(this)); //# 33: compile-time error
-  A() : this.x = sbar((() { return this; })); //# 34: compile-time error
-  A() : this.x = sbar((() { return this.a; })()); //# 35: compile-time error
-  A() : this.x = sbar(((c) { return this.foo(); })); //# 36: compile-time error
-  A() : this.x = sbar(((c) { return a; })(null)); //# 37: compile-time error
-  A() : this.x = sbar(((c) { return foo(); })(s)); //# 38: compile-time error
-
-  A() : this.x = (s = null); //# 39: ok
-  A() : this.x = (a = null); //# 40: compile-time error
-  A() : this.x = (this.a = null); //# 41: compile-time error
-}
-
-main() {}
diff --git a/tests/language_2/this/runtime_test.dart b/tests/language_2/this/runtime_test.dart
deleted file mode 100644
index a377ab32b7e..00000000000
--- a/tests/language_2/this/runtime_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Foo {
-  var x;
-  f() {}
-
-  testMe() {
-
-
-
-
-
-
-
-
-  }
-}
-
-main() {
-  new Foo().testMe();
-}
diff --git a/tests/language_2/this/this_test.dart b/tests/language_2/this/this_test.dart
deleted file mode 100644
index 43cf9060e67..00000000000
--- a/tests/language_2/this/this_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Foo {
-  var x;
-  f() {}
-
-  testMe() {
-    x.this;
-    //^^^^
-    // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-    // [cfe] Expected identifier, but got 'this'.
-    x.this();
-    //^^^^
-    // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-    // [cfe] Expected identifier, but got 'this'.
-    x.this.x;
-    //^^^^
-    // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-    // [cfe] Expected identifier, but got 'this'.
-    x.this().x;
-    //^^^^
-    // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-    // [cfe] Expected identifier, but got 'this'.
-    f().this;
-    //  ^^^^
-    // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-    // [cfe] Expected identifier, but got 'this'.
-    f().this();
-    //  ^^^^
-    // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-    // [cfe] Expected identifier, but got 'this'.
-    f().this.f();
-    //  ^^^^
-    // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-    // [cfe] Expected identifier, but got 'this'.
-    f().this().f();
-    //  ^^^^
-    // [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
-    // [cfe] Expected identifier, but got 'this'.
-  }
-}
-
-main() {
-  new Foo().testMe();
-}
diff --git a/tests/language_2/top_level/collision1_test.dart b/tests/language_2/top_level/collision1_test.dart
deleted file mode 100644
index 82d8efaefaf..00000000000
--- a/tests/language_2/top_level/collision1_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-int x = 100;
-
-get x => 200; //                //# 00: compile-time error
-set x(var i) { print(i); } //     //# 01: compile-time error
-
-int x(a, b) { print(a + b); } //  //# 02: compile-time error
-
-void main() {
-  // No need to reference x.
-}
diff --git a/tests/language_2/top_level/collision2_test.dart b/tests/language_2/top_level/collision2_test.dart
deleted file mode 100644
index 742836cd45e..00000000000
--- a/tests/language_2/top_level/collision2_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-get x => 200;
-
-// Ok: can have a setter named x when getter x is defined.
-set x(var i) {
-  print(i);
-}
-
-// Error: there is already a getter for x
-int x; //                         //# 00: compile-time error
-
-// Error: there is already a getter named x.
-int x(a, b) { print(a + b); } //  //# 01: compile-time error
-
-void main() {
-  // No need to reference x.
-}
diff --git a/tests/language_2/top_level/file1.dart b/tests/language_2/top_level/file1.dart
deleted file mode 100644
index 83d00f025a4..00000000000
--- a/tests/language_2/top_level/file1.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-part of TopLevelMultipleFilesTest.dart;
-
-main() {
-  Expect.equals(topLevelVar, 42);
-  Expect.equals(topLevelMethod(), 87);
-}
diff --git a/tests/language_2/top_level/file2.dart b/tests/language_2/top_level/file2.dart
deleted file mode 100644
index f137c3f9980..00000000000
--- a/tests/language_2/top_level/file2.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-part of TopLevelMultipleFilesTest.dart;
-
-const topLevelVar = 42;
-
-topLevelMethod() => 87;
diff --git a/tests/language_2/top_level/func_test.dart b/tests/language_2/top_level/func_test.dart
deleted file mode 100644
index 7aac30bcdfc..00000000000
--- a/tests/language_2/top_level/func_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program testing top-level variables.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class TopLevelFuncTest {
-  static testMain() {
-    var z = [1, 10, 100, 1000];
-    Expect.equals(Sum(z), 1111);
-
-    var w = Window;
-    Expect.equals(w, "window");
-
-    Expect.equals(null, rgb);
-    Color = "ff0000";
-    Expect.equals(rgb, "#ff0000");
-    CheckColor("#ff0000");
-
-    Expect.equals("5", digits[5]);
-
-    var e1 = Enumerator;
-    var e2 = Enumerator;
-    Expect.equals(0, e1());
-    Expect.equals(1, e1());
-    Expect.equals(2, e1());
-    Expect.equals(0, e2());
-  }
-}
-
-void CheckColor(String expected) {
-  Expect.equals(expected, rgb);
-}
-
-int Sum(List<int> v) {
-  int s = 0;
-  for (int i = 0; i < v.length; i++) {
-    s += v[i];
-  }
-  return s;
-}
-
-get Window {
-  return "win" "dow";
-}
-
-String rgb;
-
-void set Color(col) {
-  rgb = "#$col";
-}
-
-List<String> get digits {
-  return ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9"];
-}
-
-Function get Enumerator {
-  int k = 0;
-  return () => k++;
-}
-
-main() {
-  TopLevelFuncTest.testMain();
-}
diff --git a/tests/language_2/top_level/getter_arrow_syntax_test.dart b/tests/language_2/top_level/getter_arrow_syntax_test.dart
deleted file mode 100644
index fadc883cabb..00000000000
--- a/tests/language_2/top_level/getter_arrow_syntax_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-get getter => 42;
-
-List<int> get lgetter => null;
-
-bool get two_wrongs {
-  return !true;
-}
-
-main() {
-  Expect.equals(42, getter);
-  Expect.equals(null, lgetter);
-  Expect.equals(false, two_wrongs);
-}
diff --git a/tests/language_2/top_level/getter_no_setter1_test.dart b/tests/language_2/top_level/getter_no_setter1_test.dart
deleted file mode 100644
index 3b6ca9dcf4c..00000000000
--- a/tests/language_2/top_level/getter_no_setter1_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-bool getter_visited = false;
-
-int get getter {
-  getter_visited = true;
-}
-
-class Class {
-  method() {
-    getter++;
-//  ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL
-// [cfe] Setter not found: 'getter'.
-  }
-}
-
-main() {
-  new Class().method();
-}
diff --git a/tests/language_2/top_level/getter_no_setter2_test.dart b/tests/language_2/top_level/getter_no_setter2_test.dart
deleted file mode 100644
index c3042ada17b..00000000000
--- a/tests/language_2/top_level/getter_no_setter2_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-bool getter_visited = false;
-
-final int getter = () {
-  getter_visited = true;
-}();
-
-class Class {
-  method() {
-    getter++;
-//  ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_FINAL
-// [cfe] Setter not found: 'getter'.
-  }
-}
-
-main() {
-  new Class().method();
-}
diff --git a/tests/language_2/top_level/in_initializer_test.dart b/tests/language_2/top_level/in_initializer_test.dart
deleted file mode 100644
index f77d8618d48..00000000000
--- a/tests/language_2/top_level/in_initializer_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that constructor initializers can access top level elements.
-
-const topLevelField = 1;
-topLevelMethod() => 1;
-get topLevelGetter {
-  return 1;
-}
-
-class Foo {
-  Foo.one() : x = topLevelField;
-  Foo.second() : x = topLevelMethod;
-  Foo.third() : x = topLevelGetter;
-  var x;
-}
-
-main() {
-  Expect.equals(topLevelField, new Foo.one().x);
-  Expect.equals(topLevelMethod(), new Foo.second().x());
-  Expect.equals(topLevelGetter, new Foo.third().x);
-}
diff --git a/tests/language_2/top_level/method_test.dart b/tests/language_2/top_level/method_test.dart
deleted file mode 100644
index 74ad48e634d..00000000000
--- a/tests/language_2/top_level/method_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-untypedTopLevel() {
-  return 1;
-}
-
-class TopLevelMethodTest {
-  static void testMain() {
-    Expect.equals(1, untypedTopLevel());
-  }
-}
-
-main() {
-  TopLevelMethodTest.testMain();
-}
diff --git a/tests/language_2/top_level/multiple_files_test.dart b/tests/language_2/top_level/multiple_files_test.dart
deleted file mode 100644
index 1bb3bda3b98..00000000000
--- a/tests/language_2/top_level/multiple_files_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library TopLevelMultipleFilesTest.dart;
-
-import "package:expect/expect.dart";
-part 'file1.dart';
-part 'file2.dart';
diff --git a/tests/language_2/top_level/non_prefixed_library_test.dart b/tests/language_2/top_level/non_prefixed_library_test.dart
deleted file mode 100644
index 0e7681beb50..00000000000
--- a/tests/language_2/top_level/non_prefixed_library_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library TopLevelMultipleFilesTest.dart;
-
-import "package:expect/expect.dart";
-import 'prefixed_library.dart';
-part 'file1.dart';
diff --git a/tests/language_2/top_level/prefixed_declaration_test.dart b/tests/language_2/top_level/prefixed_declaration_test.dart
deleted file mode 100644
index 5f41a73c5c2..00000000000
--- a/tests/language_2/top_level/prefixed_declaration_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Dart test for top level declarations involving an imported type.
-
-// @dart = 2.9
-
-library main;
-
-import "package:expect/expect.dart";
-import "../library11.dart" as lib11;
-
-lib11.Library11 variable = null;
-
-lib11.Library11 function() => null;
-
-lib11.Library11 get getter => null;
-
-main() {
-  Expect.isTrue(variable == null);
-  Expect.isTrue(function() == null);
-  Expect.isTrue(getter == null);
-}
diff --git a/tests/language_2/top_level/prefixed_library.dart b/tests/language_2/top_level/prefixed_library.dart
deleted file mode 100644
index 7f2b5432b5e..00000000000
--- a/tests/language_2/top_level/prefixed_library.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library TopLevelMultipleFilesTest.dart;
-
-const topLevelVar = 42;
-
-topLevelMethod() => 87;
diff --git a/tests/language_2/top_level/unresolved_method_test.dart b/tests/language_2/top_level/unresolved_method_test.dart
deleted file mode 100644
index 2e9e531f86e..00000000000
--- a/tests/language_2/top_level/unresolved_method_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that an unresolved method call at the top level creates a compile-
-// time error.
-
-var a = b();
-//      ^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_FUNCTION
-// [cfe] Method not found: 'b'.
-
-main() {
-  print(a);
-}
diff --git a/tests/language_2/top_level/unresolved_var_test.dart b/tests/language_2/top_level/unresolved_var_test.dart
deleted file mode 100644
index 40ebb852b81..00000000000
--- a/tests/language_2/top_level/unresolved_var_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that an unresolved identifier at the top level causes a compile-time
-// error.
-
-var a = b;
-//      ^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-// [cfe] Undefined name 'b'.
-
-main() {
-  print(a);
-}
diff --git a/tests/language_2/top_level/var_test.dart b/tests/language_2/top_level/var_test.dart
deleted file mode 100644
index 5537dd19828..00000000000
--- a/tests/language_2/top_level/var_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program testing top-level variables.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var a, b;
-
-class TopLevelVarTest {
-  static testMain() {
-    Expect.equals(null, a);
-    Expect.equals(null, b);
-    a = b = 100;
-    b++;
-    Expect.equals(100, a);
-    Expect.equals(101, b);
-
-    Expect.equals(111, x);
-    Expect.equals(112, y);
-  }
-}
-
-// Ensure that initializers work for both const and non-const variables.
-const int x = 2 * 55 + 1;
-int y = x + 1;
-
-main() {
-  TopLevelVarTest.testMain();
-}
diff --git a/tests/language_2/type/alias_equality_test.dart b/tests/language_2/type/alias_equality_test.dart
deleted file mode 100644
index 0803c1cc9b8..00000000000
--- a/tests/language_2/type/alias_equality_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that type aliases perform equality tests according to the
-// underlying function type, not as if they were a distinct type
-// for each type alias declaration.
-
-import 'package:expect/expect.dart';
-
-typedef F1 = void Function(int);
-typedef F2 = void Function(int);
-typedef void F3(int x);
-
-typedef G1 = X Function<X>(X);
-typedef G2 = X Function<X>(X);
-typedef G3 = Y Function<Y>(Y);
-
-main() {
-  Expect.equals(F1, F2); //# 01: ok
-  Expect.equals(F1, F3); //# 02: ok
-  Expect.equals(G1, G2); //# 03: ok
-  Expect.equals(G1, G3); //# 04: ok
-}
diff --git a/tests/language_2/type/check_const_function_typedef2_test.dart b/tests/language_2/type/check_const_function_typedef2_test.dart
deleted file mode 100644
index bea07a038e6..00000000000
--- a/tests/language_2/type/check_const_function_typedef2_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that typechecks on const objects with typedefs work.
-
-import "package:expect/expect.dart";
-
-typedef String Int2String(int x);
-
-class A {
-  final Int2String f;
-  const A(this.f);
-}
-
-int foo(String x) => 499;
-
-const a = const A(foo);
-//                ^^^
-// [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-// [analyzer] COMPILE_TIME_ERROR.CONST_CONSTRUCTOR_PARAM_TYPE_MISMATCH
-// [cfe] The argument type 'int Function(String)' can't be assigned to the parameter type 'String Function(int)'.
-
-main() {
-  a.f(499);
-}
diff --git a/tests/language_2/type/check_const_function_typedef_test.dart b/tests/language_2/type/check_const_function_typedef_test.dart
deleted file mode 100644
index f88797adcd6..00000000000
--- a/tests/language_2/type/check_const_function_typedef_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that typechecks on const objects with typedefs work.
-
-import "package:expect/expect.dart";
-
-typedef String Int2String(int x);
-
-class A {
-  final Int2String f;
-  const A(this.f);
-}
-
-String foo(int x) => "str";
-
-const a = const A(foo);
-
-main() {
-  Expect.equals("str", a.f(499));
-}
diff --git a/tests/language_2/type/check_test.dart b/tests/language_2/type/check_test.dart
deleted file mode 100644
index 798a0e94ce3..00000000000
--- a/tests/language_2/type/check_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to remove the a B type check
-// after an A type check, because it thought any subtype of A had to be B.
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-main() {
-  var a = [new A(), new B()];
-  var b = a[0];
-  b = b as A;
-  Expect.throwsTypeError(() => b as B);
-}
diff --git a/tests/language_2/type/checks_in_factory_method_runtime_test.dart b/tests/language_2/type/checks_in_factory_method_runtime_test.dart
deleted file mode 100644
index a680bb3201c..00000000000
--- a/tests/language_2/type/checks_in_factory_method_runtime_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Tests the type checking when passing code into closure from inside a factory method
-
-import "package:expect/expect.dart";
-
-abstract class Foo<T> {
-  factory Foo.from() = Bar<T>.from;
-}
-
-class Bar<T> implements Foo<T> {
-  Bar() {}
-
-  factory Bar.from() {
-    var func = (T arg) {
-      T foo = arg;
-      bool isString = foo is String;
-      print(arg);
-      print(" String=$isString");
-    };
-
-
-    return new Bar<T>();
-  }
-}
-
-main() {
-  Foo<String> value1;
-  value1 = new Foo<String>.from();
-
-  bool gotError = false;
-
-  try {
-    Foo<int> value2 = new Foo<int>.from();
-  } on TypeError catch (e) {
-    gotError = true;
-  }
-  Expect.equals(false, gotError);
-}
diff --git a/tests/language_2/type/checks_in_factory_method_test.dart b/tests/language_2/type/checks_in_factory_method_test.dart
deleted file mode 100644
index a0d0c719568..00000000000
--- a/tests/language_2/type/checks_in_factory_method_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Tests the type checking when passing code into closure from inside a factory method
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class Foo<T> {
-  factory Foo.from() = Bar<T>.from;
-}
-
-class Bar<T> implements Foo<T> {
-  Bar() {}
-
-  factory Bar.from() {
-    var func = (T arg) {
-      T foo = arg;
-      bool isString = foo is String;
-      print(arg);
-      print(" String=$isString");
-    };
-
-    func("Hello World!");
-    //   ^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-    // [cfe] The argument type 'String' can't be assigned to the parameter type 'T'.
-    return new Bar<T>();
-  }
-}
-
-main() {
-  Foo<String> value1;
-  value1 = new Foo<String>.from();
-
-  bool gotError = false;
-
-  try {
-    Foo<int> value2 = new Foo<int>.from();
-  } on TypeError catch (e) {
-    gotError = true;
-  }
-  Expect.equals(false, gotError);
-}
diff --git a/tests/language_2/type/constants_test.dart b/tests/language_2/type/constants_test.dart
deleted file mode 100644
index 95f71c3991f..00000000000
--- a/tests/language_2/type/constants_test.dart
+++ /dev/null
@@ -1,92 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that the value of constant type literals are allowed as
-// constant map keys and case expressions, and the value of non-constant type
-// literals are not.
-
-import "dart:collection" deferred as prefix show HashSet;
-
-main(args) {
-  testSwitch(args);
-  testMaps(args);
-}
-
-const Type numType = num;
-
-const bool fromEnvironment =
-    const bool.fromEnvironment("foo", defaultValue: true);
-
-Type argumentType<T>() => T;
-
-void testSwitch<T extends MyType>(args) {
-  var types = [MyType, T, argumentType<MyType>(), argumentType<T>()];
-  for (int i = 0; i < types.length; i++) {
-    switch (types[i]) {
-      // Must be type literal or not override `==`.
-      case const MyType(0): //# 01: compile-time error
-
-      // Must not be type variable.
-      case T: //# 02: compile-time error
-
-      // Must not be deferred type.
-      case prefix.HashSet: //# 03: compile-time error
-
-      // Constant type literals are valid.
-      case String:
-        throw "unreachable: String #$i";
-      case int:
-        throw "unreachable: int #$i";
-      case numType:
-        throw "unreachable: num #$i";
-      case MyType:
-        break;
-      // Must be type literal or not override `==`.
-      case fromEnvironment ? const MyType(1) : Type: //# 07: compile-time error
-      default:
-        throw "unreachable: default #$i";
-    }
-  }
-}
-
-void testMaps<T extends MyType>(args) {
-  const map = {
-    // Must be type literal or not override `==`.
-    MyType(0): 0, //# 04: compile-time error
-
-    // Must not be type variable.
-    T: 0, //# 05: compile-time error
-
-    // Must not be deferred.
-    prefix.HashSet: 0, //# 06: compile-time error
-
-    // Constant type literals are valid.
-    MyType: 0,
-    int: 1,
-    String: 2,
-    numType: 3,
-    // Must be type literal or not override `==`.
-    fromEnvironment ? const MyType(1) : Type: 4, //# 08: compile-time error
-  };
-  if (map[MyType] != 0) throw "Map Error: ${MyType} as literal";
-  if (map[T] != 0) throw "Map Error: ${T} as type argument";
-  if (map[argumentType<MyType>()] != 0) {
-    throw "Map Error: ${argumentType<MyType>()} as type argument of literal";
-  }
-  if (map[argumentType<T>()] != 0) {
-    throw "Map Error: ${argumentType<T>()} as type argument of type variable";
-  }
-  if (map[num] != 3) throw "Map Error: ${num} -> ${map[num]}";
-}
-
-// An implementation of `Type` which overrides `==`,
-// but is not the value of a constant type literal.
-class MyType implements Type {
-  final int value;
-  const MyType(this.value);
-  int get hashCode => 0;
-  bool operator ==(Object other) => identical(this, other);
-}
diff --git a/tests/language_2/type/conversion_ssa_test.dart b/tests/language_2/type/conversion_ssa_test.dart
deleted file mode 100644
index 1e6e3318ee4..00000000000
--- a/tests/language_2/type/conversion_ssa_test.dart
+++ /dev/null
@@ -1,84 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js, that used to generate bad code in
-// checked mode. The pattern that lead to an error was:
-//
-// t1 = GeneratedAtUseSite instruction
-// t2 = check(t1)
-// t3 = check(t2)
-// t4 = use(t3)
-// t5 = use(t3)
-// t6 = use(t2)
-//
-// The SSA variable allocator used to allocate the same variable for
-// t5 and t2, because of a bogus optimization with check instructions.
-
-expect(a, b) {
-  if (a != b) throw 'Failed';
-}
-
-var array = [
-  new SelectorGroup([
-    new Selector([new SimpleSelectorSequence(new ClassSelector())]),
-    new Selector([new SimpleSelectorSequence(new ClassSelector())]),
-    new Selector([new SimpleSelectorSequence(new ClassSelector())])
-  ]),
-  new Object()
-];
-
-class RuleSet {
-  final SelectorGroup _selectorGroup;
-  RuleSet(this._selectorGroup);
-  SelectorGroup get selectorGroup => _selectorGroup;
-}
-
-class SelectorGroup {
-  List<Selector> _selectors;
-  SelectorGroup(this._selectors);
-  List<Selector> get selectors => _selectors;
-}
-
-class Selector {
-  final List<SimpleSelectorSequence> _simpleSelectorSequences;
-  Selector(this._simpleSelectorSequences);
-  List<SimpleSelectorSequence> get simpleSelectorSequences =>
-      _simpleSelectorSequences;
-}
-
-class SimpleSelectorSequence {
-  final SimpleSelector _selector;
-  SimpleSelectorSequence(this._selector);
-  get simpleSelector => _selector;
-}
-
-class SimpleSelector {}
-
-class ClassSelector extends SimpleSelector {}
-
-void testSelectorGroups() {
-  // Fetch the rule set from an array to trick the type inferrer.
-  var ruleset = new RuleSet(array[0]);
-  expect(ruleset.selectorGroup.selectors.length, 3);
-
-  var groupSelector0 = ruleset.selectorGroup.selectors[0];
-  var selector0 = groupSelector0.simpleSelectorSequences[0];
-  var simpleSelector0 = selector0.simpleSelector;
-
-  var groupSelector1 = ruleset.selectorGroup.selectors[1];
-  var selector1 = groupSelector1.simpleSelectorSequences[0];
-  var simpleSelector1 = selector1.simpleSelector;
-  expect(simpleSelector1 is ClassSelector, true);
-  var groupSelector2 = ruleset.selectorGroup.selectors[2];
-}
-
-main() {
-  testSelectorGroups();
-  // Trick the type inferrer.
-  new SimpleSelectorSequence(new SimpleSelector());
-  new SelectorGroup([]);
-  new Selector([]);
-}
diff --git a/tests/language_2/type/error_test.dart b/tests/language_2/type/error_test.dart
deleted file mode 100644
index 0543ba3aa54..00000000000
--- a/tests/language_2/type/error_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that various type errors produced by explicit casts don't invoke
-// user-defined code during error reporting.
-
-class NoToString {
-  toString() {
-    Expect.fail("should not be called");
-    return "";
-  }
-}
-
-/// Defeat optimizations of type checks.
-dynamic wrap(e) {
-  if (new DateTime.now().year == 1980) return null;
-  return e;
-}
-
-bool assertionsEnabled = false;
-
-void main() {
-  assert(assertionsEnabled = true);
-
-  dynamic noToString = NoToString();
-
-  Expect.throws<TypeError>(() {
-    wrap(noToString) as int; // Explicit cast should throw
-  }, (e) {
-    e.toString(); // Should not throw.
-    return true;
-  });
-
-  if (assertionsEnabled) {
-    Expect.throws<AssertionError>(() {
-      assert(wrap(false), noToString); // Assertion should throw
-    }, (e) {
-      e.toString(); // Should not throw.
-      return true;
-    });
-  }
-}
diff --git a/tests/language_2/type/guard_conversion_test.dart b/tests/language_2/type/guard_conversion_test.dart
deleted file mode 100644
index 4429ff17078..00000000000
--- a/tests/language_2/type/guard_conversion_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-foo() => 'bar';
-
-main() {
-  var a = foo();
-  var b = 'c';
-  do {
-    b = a[2];
-  } while (b != 'r');
-
-  if (a is Comparable) {
-    a += a;
-  }
-  Expect.equals('barbar', a);
-}
diff --git a/tests/language_2/type/hoisting_test.dart b/tests/language_2/type/hoisting_test.dart
deleted file mode 100644
index ef471285982..00000000000
--- a/tests/language_2/type/hoisting_test.dart
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-import "package:expect/expect.dart";
-
-class A<T> {
-  A(this.x, T z);
-  A.make();
-  void f(T x) {}
-  static String g(String x) {
-    return x;
-  }
-
-  T x;
-}
-
-class B extends A<int> {
-  B(int x, int z) : super(x, z);
-  B.make() : super.make();
-  void f(int x) {}
-  static int g(int x) {
-    return x;
-  }
-}
-
-class C {
-  C(this.x, int z);
-  void f(int x) {}
-  static int g(int x) {
-    return x;
-  }
-
-  int x = 0;
-}
-
-typedef void ToVoid<T>(T x);
-typedef T Id<T>(T x);
-
-void main() {
-  {
-    A<String> a = new A<String>("hello", "world");
-    Expect.isTrue(new A<String>.make() is! A<int>);
-    Expect.isTrue(new A.make() is A);
-    Expect.isTrue(a is! A<int>);
-    Expect.isTrue(a is A<String>);
-    Expect.isTrue(a.f is ToVoid<String>);
-    Expect.isTrue(A.g is Id<String>);
-  }
-  {
-    B b = new B(0, 1);
-    Expect.isTrue(new B.make() is B);
-    Expect.isTrue(new B.make() is A<int>);
-    Expect.isTrue(b is B);
-    Expect.isTrue(b.f is ToVoid<int>);
-    Expect.isTrue(B.g is Id<int>);
-  }
-  {
-    C c = new C(0, 1);
-    Expect.isTrue(c is C);
-    Expect.isTrue(c.f is ToVoid<int>);
-    Expect.isTrue(C.g is Id<int>);
-  }
-}
diff --git a/tests/language_2/type/implicit_error_test.dart b/tests/language_2/type/implicit_error_test.dart
deleted file mode 100644
index 815abf796ef..00000000000
--- a/tests/language_2/type/implicit_error_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that various type errors produced by implicit casts don't invoke
-// user-defined code during error reporting.
-
-class NoToString {
-  toString() {
-    Expect.fail("should not be called");
-    return "";
-  }
-}
-
-/// Defeat optimizations of type checks.
-dynamic wrap(e) {
-  if (new DateTime.now().year == 1980) return null;
-  return e;
-}
-
-bool assertionsEnabled = false;
-
-void main() {
-  assert(assertionsEnabled = true);
-
-  dynamic noToString = NoToString();
-
-  Expect.throws<TypeError>(() {
-    int x = wrap(noToString); // Implicit cast should throw
-    return x;
-  }, (e) {
-    e.toString(); // Should not throw.
-    return true;
-  });
-
-  if (assertionsEnabled) {
-    Expect.throws<TypeError>(() {
-      assert(wrap(noToString)); // Implicit cast should throw
-    }, (e) {
-      e.toString(); // Should not throw.
-      return true;
-    });
-  }
-}
diff --git a/tests/language_2/type/intersection_test.dart b/tests/language_2/type/intersection_test.dart
deleted file mode 100644
index 12e190265de..00000000000
--- a/tests/language_2/type/intersection_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to consider that the
-// intersection of [Comparable] and [num] is conflicting.
-
-import "package:expect/expect.dart";
-
-class A {
-  foo(a, Comparable b) => a == b;
-  bar(a, Comparable b) => b == a;
-}
-
-main() {
-  Expect.isFalse(new A().foo(1, 'foo'));
-  Expect.isTrue(new A().foo(1, 1));
-  Expect.isFalse(new A().bar(1, 'foo'));
-  Expect.isTrue(new A().bar(1, 1));
-}
diff --git a/tests/language_2/type_object/constant_type_literal_runtime_test.dart b/tests/language_2/type_object/constant_type_literal_runtime_test.dart
deleted file mode 100644
index 3e53acdf28d..00000000000
--- a/tests/language_2/type_object/constant_type_literal_runtime_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test for type literals as compile-time constants.
-
-class C<T> {
-  void m() {
-    const List lst = const [
-
-    ];
-  }
-}
-
-main() {
-  new C().m();
-}
diff --git a/tests/language_2/type_object/constant_type_literal_test.dart b/tests/language_2/type_object/constant_type_literal_test.dart
deleted file mode 100644
index 34adaea2848..00000000000
--- a/tests/language_2/type_object/constant_type_literal_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for type literals as compile-time constants.
-
-class C<T> {
-  void m() {
-    const List lst = const [
-      T
-//    ^
-// [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
-// [cfe] Type variables can't be used as constants.
-//    ^
-// [analyzer] COMPILE_TIME_ERROR.NON_CONSTANT_LIST_ELEMENT
-    ];
-  }
-}
-
-main() {
-  new C().m();
-}
diff --git a/tests/language_2/type_object/first_class_types_constants_test.dart b/tests/language_2/type_object/first_class_types_constants_test.dart
deleted file mode 100644
index 6dfd36baade..00000000000
--- a/tests/language_2/type_object/first_class_types_constants_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C<T> {
-  final T t;
-  const C(this.t);
-}
-
-typedef int Fun(bool, String);
-
-const c0 = C;
-const c1 = const C<Type>(C);
-const c2 = Fun;
-const c3 = const C<Type>(Fun);
-
-main() {
-  Expect.identical(C, C);
-  Expect.identical(C, c0);
-  Expect.identical(c1, c1);
-  Expect.notEquals(c0, c1);
-  Expect.notEquals(c1, c2);
-  Expect.identical(c1.t, c0);
-  Expect.notEquals(C, Fun);
-  Expect.identical(Fun, Fun);
-  Expect.identical(Fun, c2);
-  Expect.identical(c3.t, c2);
-}
diff --git a/tests/language_2/type_object/first_class_types_lib1.dart b/tests/language_2/type_object/first_class_types_lib1.dart
deleted file mode 100644
index 0721042d0d2..00000000000
--- a/tests/language_2/type_object/first_class_types_lib1.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib1;
-
-class A {}
diff --git a/tests/language_2/type_object/first_class_types_lib2.dart b/tests/language_2/type_object/first_class_types_lib2.dart
deleted file mode 100644
index d56239faa23..00000000000
--- a/tests/language_2/type_object/first_class_types_lib2.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib2;
-
-class A {}
diff --git a/tests/language_2/type_object/first_class_types_libraries_test.dart b/tests/language_2/type_object/first_class_types_libraries_test.dart
deleted file mode 100644
index eec983a3ec8..00000000000
--- a/tests/language_2/type_object/first_class_types_libraries_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library firstClassLibrariestest;
-
-import "package:expect/expect.dart";
-import 'first_class_types_lib1.dart' as lib1;
-import 'first_class_types_lib2.dart' as lib2;
-
-class C<X> {}
-
-sameType(a, b) {
-  Expect.equals(a.runtimeType, b.runtimeType);
-}
-
-differentType(a, b) {
-  Expect.notEquals(a.runtimeType, b.runtimeType);
-}
-
-main() {
-  sameType(new lib1.A(), new lib1.A());
-  differentType(new lib1.A(), new lib2.A());
-  differentType(new C<lib1.A>(), new C<lib2.A>());
-}
diff --git a/tests/language_2/type_object/first_class_types_literals_runtime_1_test.dart b/tests/language_2/type_object/first_class_types_literals_runtime_1_test.dart
deleted file mode 100644
index 6a053856eac..00000000000
--- a/tests/language_2/type_object/first_class_types_literals_runtime_1_test.dart
+++ /dev/null
@@ -1,69 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class C<T, U, V> {}
-
-class D {}
-
-typedef int Foo(bool b);
-
-sameType(a, b) {
-  Expect.equals(a.runtimeType, b.runtimeType);
-}
-
-main() {
-  void foo(a) {}
-
-  // Test that literals can be used in different contexts.
-  [int];
-  ([int]);
-  foo([int]);
-  [int].length;
-  ({1: int});
-  foo({1: int});
-  ({1: int}).keys;
-
-  // Test type literals.
-  Expect.equals(int, int);
-  Expect.notEquals(int, num);
-  Expect.equals(Foo, Foo);
-  Expect.equals(dynamic, dynamic);
-
-  // Test that class literals return instances of Type.
-  Expect.isTrue((D).runtimeType is Type);
-  Expect.isTrue((dynamic).runtimeType is Type);
-
-  // Test that types from runtimeType and literals agree.
-  Expect.equals(int, 1.runtimeType);
-  Expect.equals(String, 'hest'.runtimeType);
-  Expect.equals(double, (0.5).runtimeType);
-  Expect.equals(bool, true.runtimeType);
-  Expect.equals(Object, Object().runtimeType);
-  Expect.equals(C, new C().runtimeType);
-
-
-  // runtimeType on type is idempotent.
-  Expect.equals((D).runtimeType, (D).runtimeType.runtimeType);
-
-  // Test that operator calls on class literals go to Type.
-
-
-
-
-
-
-
-
-
-
-
-  Expect.equals((dynamic).toString(), 'dynamic');
-}
diff --git a/tests/language_2/type_object/first_class_types_literals_runtime_2_test.dart b/tests/language_2/type_object/first_class_types_literals_runtime_2_test.dart
deleted file mode 100644
index 7ef4771444a..00000000000
--- a/tests/language_2/type_object/first_class_types_literals_runtime_2_test.dart
+++ /dev/null
@@ -1,69 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class C<T, U, V> {}
-
-class D {}
-
-typedef int Foo(bool b);
-
-sameType(a, b) {
-  Expect.equals(a.runtimeType, b.runtimeType);
-}
-
-main() {
-  void foo(a) {}
-
-  // Test that literals can be used in different contexts.
-  [int];
-  ([int]);
-  foo([int]);
-  [int].length;
-  ({1: int});
-  foo({1: int});
-  ({1: int}).keys;
-
-  // Test type literals.
-  Expect.equals(int, int);
-  Expect.notEquals(int, num);
-  Expect.equals(Foo, Foo);
-  Expect.equals(dynamic, dynamic);
-
-  // Test that class literals return instances of Type.
-  Expect.isTrue((D).runtimeType is Type);
-  Expect.isTrue((dynamic).runtimeType is Type);
-
-  // Test that types from runtimeType and literals agree.
-  Expect.equals(int, 1.runtimeType);
-  Expect.equals(String, 'hest'.runtimeType);
-  Expect.equals(double, (0.5).runtimeType);
-  Expect.equals(bool, true.runtimeType);
-  Expect.equals(Object, Object().runtimeType);
-
-  Expect.equals(D, new D().runtimeType);
-
-  // runtimeType on type is idempotent.
-  Expect.equals((D).runtimeType, (D).runtimeType.runtimeType);
-
-  // Test that operator calls on class literals go to Type.
-
-
-
-
-
-
-
-
-
-
-
-  Expect.equals((dynamic).toString(), 'dynamic');
-}
diff --git a/tests/language_2/type_object/first_class_types_literals_runtime_test.dart b/tests/language_2/type_object/first_class_types_literals_runtime_test.dart
deleted file mode 100644
index 0b35f143f60..00000000000
--- a/tests/language_2/type_object/first_class_types_literals_runtime_test.dart
+++ /dev/null
@@ -1,69 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-class C<T, U, V> {}
-
-class D {}
-
-typedef int Foo(bool b);
-
-sameType(a, b) {
-  Expect.equals(a.runtimeType, b.runtimeType);
-}
-
-main() {
-  void foo(a) {}
-
-  // Test that literals can be used in different contexts.
-  [int];
-  ([int]);
-  foo([int]);
-  [int].length;
-  ({1: int});
-  foo({1: int});
-  ({1: int}).keys;
-
-  // Test type literals.
-  Expect.equals(int, int);
-  Expect.notEquals(int, num);
-  Expect.equals(Foo, Foo);
-  Expect.equals(dynamic, dynamic);
-
-  // Test that class literals return instances of Type.
-  Expect.isTrue((D).runtimeType is Type);
-  Expect.isTrue((dynamic).runtimeType is Type);
-
-  // Test that types from runtimeType and literals agree.
-  Expect.equals(int, 1.runtimeType);
-  Expect.equals(String, 'hest'.runtimeType);
-  Expect.equals(double, (0.5).runtimeType);
-  Expect.equals(bool, true.runtimeType);
-  Expect.equals(Object, Object().runtimeType);
-
-
-
-  // runtimeType on type is idempotent.
-  Expect.equals((D).runtimeType, (D).runtimeType.runtimeType);
-
-  // Test that operator calls on class literals go to Type.
-
-
-
-
-
-
-
-
-
-
-
-  Expect.equals((dynamic).toString(), 'dynamic');
-}
diff --git a/tests/language_2/type_object/first_class_types_literals_test.dart b/tests/language_2/type_object/first_class_types_literals_test.dart
deleted file mode 100644
index edd0dc03ab9..00000000000
--- a/tests/language_2/type_object/first_class_types_literals_test.dart
+++ /dev/null
@@ -1,98 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C<T, U, V> {}
-
-class D {}
-
-typedef int Foo(bool b);
-
-sameType(a, b) {
-  Expect.equals(a.runtimeType, b.runtimeType);
-}
-
-main() {
-  void foo(a) {}
-
-  // Test that literals can be used in different contexts.
-  [int];
-  ([int]);
-  foo([int]);
-  [int].length;
-  ({1: int});
-  foo({1: int});
-  ({1: int}).keys;
-
-  // Test type literals.
-  Expect.equals(int, int);
-  Expect.notEquals(int, num);
-  Expect.equals(Foo, Foo);
-  Expect.equals(dynamic, dynamic);
-
-  // Test that class literals return instances of Type.
-  Expect.isTrue((D).runtimeType is Type);
-  Expect.isTrue((dynamic).runtimeType is Type);
-
-  // Test that types from runtimeType and literals agree.
-  Expect.equals(int, 1.runtimeType);
-  Expect.equals(String, 'hest'.runtimeType);
-  Expect.equals(double, (0.5).runtimeType);
-  Expect.equals(bool, true.runtimeType);
-  Expect.equals(Object, Object().runtimeType);
-  Expect.equals(C, new C().runtimeType);
-  Expect.equals(D, new D().runtimeType);
-
-  // runtimeType on type is idempotent.
-  Expect.equals((D).runtimeType, (D).runtimeType.runtimeType);
-
-  // Test that operator calls on class literals go to Type.
-  Expect.throwsNoSuchMethodError(() => C = 1);
-  //                                   ^
-  // [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_TYPE
-  // [cfe] Can't assign to a type literal.
-  Expect.throwsNoSuchMethodError(() => C++);
-  //                                   ^
-  // [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_TYPE
-  // [cfe] Can't assign to a type literal.
-  Expect.throwsNoSuchMethodError(() => C + 1);
-  //                                     ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '+' isn't defined for the class 'Type'.
-  Expect.throwsNoSuchMethodError(() => C[2]);
-  //                                    ^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '[]' isn't defined for the class 'Type'.
-  Expect.throwsNoSuchMethodError(() => C[2] = 'hest');
-  //                                    ^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '[]=' isn't defined for the class 'Type'.
-  Expect.throwsNoSuchMethodError(() => dynamic = 1);
-  //                                   ^
-  // [cfe] Can't assign to a type literal.
-  //                                   ^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_TYPE
-  Expect.throwsNoSuchMethodError(() => dynamic++);
-  //                                   ^
-  // [cfe] Can't assign to a type literal.
-  //                                   ^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.ASSIGNMENT_TO_TYPE
-  Expect.throwsNoSuchMethodError(() => dynamic + 1);
-  //                                           ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '+' isn't defined for the class 'Type'.
-  Expect.throwsNoSuchMethodError(() => dynamic[2]);
-  //                                          ^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '[]' isn't defined for the class 'Type'.
-  Expect.throwsNoSuchMethodError(() => dynamic[2] = 'hest');
-  //                                          ^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '[]=' isn't defined for the class 'Type'.
-
-  Expect.equals((dynamic).toString(), 'dynamic');
-}
diff --git a/tests/language_2/type_object/first_class_types_test.dart b/tests/language_2/type_object/first_class_types_test.dart
deleted file mode 100644
index d5f163bee4e..00000000000
--- a/tests/language_2/type_object/first_class_types_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C<T> {}
-
-sameType(a, b) {
-  Expect.equals(a.runtimeType, b.runtimeType);
-}
-
-differentType(a, b) {
-  Expect.isFalse(a.runtimeType == b.runtimeType);
-}
-
-main() {
-  // Test types obtained by calling runtimeType.
-  var v1 = new C<int>();
-  var v2 = new C<int>();
-  sameType(v1, v2);
-
-  var v3 = new C<num>();
-  differentType(v1, v3);
-
-  var i = 1;
-  var s = 'string';
-  var d = 3.14;
-  var b = true;
-  sameType(2, i);
-  sameType('hest', s);
-  sameType(1.2, d);
-  sameType(false, b);
-
-  List l = [1, 2, 3];
-  Map m = {'a': 1, 'b': 2};
-  sameType([], l);
-  sameType({}, m);
-
-  // Test parameterized lists.
-  sameType(<int>[], <int>[]);
-  differentType(<int>[], <num>[]);
-  differentType(<int>[], []);
-}
diff --git a/tests/language_2/type_object/literal_canonicalization_test.dart b/tests/language_2/type_object/literal_canonicalization_test.dart
deleted file mode 100644
index 69c95d48484..00000000000
--- a/tests/language_2/type_object/literal_canonicalization_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Foo {}
-
-class Box<T> {
-  Type get typeArg => T;
-}
-
-/// A typedef that defines a non-generic function type.
-typedef int Func1(bool b);
-
-/// Semantically identical to [Func], but using the Dart 2 syntax.
-typedef Func2 = int Function(bool);
-
-main() {
-  // Literals are canonicalized.
-  Expect.identical(Foo, Foo);
-  Expect.identical(Box, Box);
-  Expect.identical(new Box<Foo>().typeArg, new Box<Foo>().typeArg);
-  Expect.identical(Func1, Func1);
-  Expect.identical(Func2, Func2);
-}
diff --git a/tests/language_2/type_object/literal_prefix_call_test.dart b/tests/language_2/type_object/literal_prefix_call_test.dart
deleted file mode 100644
index 09b06f9fa53..00000000000
--- a/tests/language_2/type_object/literal_prefix_call_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:core' as core;
-
-main() {
-  core.Object();
-}
diff --git a/tests/language_2/type_object/literal_type_literal_test.dart b/tests/language_2/type_object/literal_type_literal_test.dart
deleted file mode 100644
index 6d641154c3b..00000000000
--- a/tests/language_2/type_object/literal_type_literal_test.dart
+++ /dev/null
@@ -1,121 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-import 'literal_type_literal_test.dart' as prefix;
-
-// TODO(rnystrom): This test has a lot of overlap with some other language
-// tests, but those are sort of all over the place so I thought it useful to
-// test all of the relevant bits in one place here.
-
-class Foo {
-  static var property;
-  static method() => "result";
-}
-
-class Box<T> {
-  Type get typeArg => T;
-}
-
-class G<A, B> {}
-
-/// A typedef that defines a non-generic function type.
-typedef int Func(bool b);
-
-/// Semantically identical to [Func], but using the Dart 2 syntax.
-typedef Func2 = int Function(bool);
-
-/// A typedef that defines a generic function type.
-typedef GenericFunc = int Function<T>(T);
-
-/// A typedef with a type parameter that defines a non-generic function type.
-typedef int GenericTypedef<T>(T t);
-
-/// Semantically identical to [GenericTypedef], but using the Dart 2 syntax.
-typedef GenericTypedef2<T> = int Function(T);
-
-/// A typedef with a type parameter that defines a generic function type.
-typedef GenericTypedefAndFunc<S> = S Function<T>(T);
-
-main() {
-  // Primitive types.
-  testType(Object, "Object");
-  testType(Null, "Null");
-  testType(bool, "bool");
-  testType(double, "double");
-  testType(int, "int");
-  testType(num, "num");
-  testType(String, "String");
-
-  // Class types.
-  testType(Foo, "Foo");
-
-  // Generic classes.
-  testType(Box, ["Box", "Box<dynamic>"]);
-  testType(new Box<Foo>().typeArg, "Foo");
-  testType(new Box<dynamic>().typeArg, "dynamic");
-  testType(new Box<Box<Foo>>().typeArg, "Box<Foo>");
-  testType(G, ["G", "G<dynamic, dynamic>"]);
-  testType(new Box<G<int, String>>().typeArg, "G<int, String>");
-
-  // Typedef.
-  testType(Func, ["Func", "(bool) => int"]);
-  testType(Func2, ["Func2", "(bool) => int"]);
-  testType(GenericTypedef,
-      ["GenericTypedef", "GenericTypedef<dynamic>", "(dynamic) => int"]);
-  testType(GenericTypedef2,
-      ["GenericTypedef2", "GenericTypedef2<dynamic>", "(dynamic) => int"]);
-  testType(new Box<GenericTypedef<int>>().typeArg,
-      ["GenericTypedef<int>", "(int) => int"]);
-  testType(GenericFunc, ["GenericFunc", RegExp(r'<(\w+)>\((\1)\) => int')]);
-  testType(GenericTypedefAndFunc, [
-    "GenericTypedefAndFunc",
-    "GenericTypedefAndFunc<dynamic>",
-    RegExp(r'<(\w+)>\((\1)\) => dynamic')
-  ]);
-
-  // Literals are canonicalized.
-  // See type_literal_canonicalization_test.dart
-
-  // Static member uses are not type literals.
-  Foo.property = "value";
-  Expect.equals("value", Foo.property);
-  Expect.equals("result", Foo.method());
-
-  // Prefixed types are type literals.
-  testType(prefix.Foo, "Foo");
-
-  // Prefix member uses are not.
-  prefix.Foo.property = "value2";
-  Expect.equals("value2", prefix.Foo.property);
-  Expect.equals("result", prefix.Foo.method());
-}
-
-void testType(Type type, Object expectedToStringValues) {
-  Expect.isTrue(type is Type);
-  String text = type.toString();
-
-  // dart2js minified names should be tagged. We can still test types that don't
-  // contain minified names.
-  if (text.contains('minified:')) return;
-
-  if (expectedToStringValues is List) {
-    var matched = false;
-    for (var value in expectedToStringValues) {
-      if (value is String) {
-        matched = matched || value == text;
-      } else if (value is RegExp) {
-        matched = matched || value.hasMatch(text);
-      }
-    }
-    Expect.isTrue(matched,
-        'type `$type`.toString() should be one of: $expectedToStringValues.');
-  } else {
-    var string = expectedToStringValues as String;
-    Expect.equals(string, text);
-  }
-}
diff --git a/tests/language_2/type_object/reify_type_variable_test.dart b/tests/language_2/type_object/reify_type_variable_test.dart
deleted file mode 100644
index 2320966b524..00000000000
--- a/tests/language_2/type_object/reify_type_variable_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Foo<T> {
-  reify() {
-    return T;
-  }
-}
-
-main() {
-  Expect.equals(int, new Foo<int>().reify());
-  Expect.equals(Foo, new Foo().runtimeType);
-}
diff --git a/tests/language_2/type_object/runtime_type_function_test.dart b/tests/language_2/type_object/runtime_type_function_test.dart
deleted file mode 100644
index dd333f2e5e6..00000000000
--- a/tests/language_2/type_object/runtime_type_function_test.dart
+++ /dev/null
@@ -1,104 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-typedef String F(String returns, String arguments, [Map<String, String> named]);
-
-/// Formats a type like `(String, [int], {bool name}) => double`.
-String fn(String returns, String positional,
-    [Map<String, String> named = const {}]) {
-  var result = new StringBuffer();
-  result.write("($positional");
-  if (positional != "" && named.isNotEmpty) result.write(", ");
-  if (named.isNotEmpty) {
-    result.write("{");
-    bool first = true;
-    named.forEach((name, type) {
-      if (first) {
-        first = false;
-      } else {
-        result.write(", ");
-      }
-      result.write("$type $name");
-    });
-    result.write("}");
-  }
-  result.write(") => $returns");
-  return result.toString();
-}
-
-main() {
-  // Types that do not use class names - these can be checked on dart2js in
-  // minified mode.
-
-  check(fn('dynamic', ''), main); //        Top-level tear-off.
-  check(fn('void', ''), Xyzzy.foo); //      Class static member tear-off.
-  check(fn('void', 'Object'), new MyList().add); //  Instance tear-off.
-  check(fn('int', ''), () => 1); //       closure.
-
-  var s = new Xyzzy().runtimeType.toString();
-  if (s.length <= 3) return; // dart2js --minify has minified names.
-
-  Expect.equals('Xyzzy', s, 'runtime type of plain class prints as class name');
-
-  check(fn('void', 'String, dynamic'), check);
-
-  // Class static member tear-offs.
-  check(fn('String', 'String, [String, dynamic]'), Xyzzy.opt);
-  check(fn('String', 'String', {'a': 'String', 'b': 'dynamic'}), Xyzzy.nam);
-
-  // Instance method tear-offs.
-  check(fn('void', 'Object'), new MyList<String>().add);
-  check(fn('void', 'Object'), new MyList<int>().add);
-  check(fn('void', 'int'), new Xyzzy().intAdd);
-
-  check(fn('String', 'Object'), new G<String, int>().foo);
-
-  // Instance method with function parameter.
-  var string2int = fn('int', 'String');
-  check(fn('String', 'Object'), new G<String, int>().moo);
-  check(fn('String', '$string2int'), new G<String, int>().higherOrder);
-
-  // Closures.
-  String localFunc(String a, String b, [Map<String, String> named]) => a + b;
-  void localFunc2(int a) {
-    print(a);
-  }
-
-  Expect.isTrue(localFunc is F);
-  check(fn('String', 'String, String, [Map<String, String>]'), localFunc);
-  check(fn('void', 'int'), localFunc2);
-}
-
-void check(String text, var thing) {
-  var type = thing.runtimeType.toString();
-  if (type == text) return;
-  Expect.fail("""
-Type print string does not match expectation
-  Expected: '$text'
-  Actual: '$type'
-""");
-}
-
-class Xyzzy {
-  static void foo() {}
-  static String opt(String x, [String a, b]) {}
-  static String nam(String x, {String a, b}) {}
-  void intAdd(int x) {}
-}
-
-// Using 'MyList' instead of core lib 'List' keeps covariant parameter type of
-// tear-offs 'Object' (legacy lib) instead of 'Object?' (opted-in lib).
-class MyList<E> {
-  void add(E value) {}
-}
-
-class G<U, V> {
-  U foo(V x) => null;
-  U moo(V f(U x)) => null;
-  U higherOrder(int f(U x)) => null;
-}
diff --git a/tests/language_2/type_object/runtime_type_test.dart b/tests/language_2/type_object/runtime_type_test.dart
deleted file mode 100644
index 2287d6223e3..00000000000
--- a/tests/language_2/type_object/runtime_type_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B {}
-
-main() {
-  var a = new A();
-  var b = new B();
-  var f = () => null;
-  var funcType = f.runtimeType;
-  var classA = A;
-  var classB = B;
-
-  Expect.isTrue(a.runtimeType is Type);
-  Expect.equals(A, a.runtimeType);
-  Expect.notEquals(B, a.runtimeType);
-  Expect.notEquals(A, b.runtimeType);
-
-  Expect.isTrue(f.runtimeType is Type);
-  Expect.isFalse(f.runtimeType == a.runtimeType);
-
-  Expect.isTrue(classA.runtimeType is Type);
-  Expect.isTrue(classA.runtimeType == classB.runtimeType);
-  Expect.isFalse(classA.runtimeType == a.runtimeType);
-  Expect.isFalse(classA.runtimeType == f.runtimeType);
-
-  Expect.isTrue(funcType.runtimeType == classA.runtimeType);
-
-  Expect.isTrue(null.runtimeType is Type);
-  Expect.equals(Null, null.runtimeType);
-}
diff --git a/tests/language_2/type_promotion/assign_runtime_test.dart b/tests/language_2/type_promotion/assign_runtime_test.dart
deleted file mode 100644
index e4999cdf611..00000000000
--- a/tests/language_2/type_promotion/assign_runtime_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test type promotion of assigned locals.
-
-class A {
-  var a = "a";
-}
-
-class B extends A {
-  var b = "b";
-}
-
-class C extends B {
-  var c = "c";
-}
-
-class D extends A {
-  var d = "d";
-}
-
-class E implements C, D {
-  var a = "";
-  var b = "";
-  var c = "";
-  var d = "";
-}
-
-void main() {
-  A a = new E();
-  if (a is B) {
-    print(a.a);
-
-    a = null;
-  }
-  if (a is B) {
-    a = null;
-    print(a.a);
-
-  }
-  if (a is B) {
-    print(a.a);
-
-    {
-      a = null;
-    }
-    print(a.a);
-
-  }
-}
diff --git a/tests/language_2/type_promotion/assign_test.dart b/tests/language_2/type_promotion/assign_test.dart
deleted file mode 100644
index b366b2a0b02..00000000000
--- a/tests/language_2/type_promotion/assign_test.dart
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test type promotion of assigned locals.
-
-class A {
-  var a = "a";
-}
-
-class B extends A {
-  var b = "b";
-}
-
-class C extends B {
-  var c = "c";
-}
-
-class D extends A {
-  var d = "d";
-}
-
-class E implements C, D {
-  var a = "";
-  var b = "";
-  var c = "";
-  var d = "";
-}
-
-void main() {
-  A a = new E();
-  if (a is B) {
-    print(a.a);
-    print(a.b);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'b' isn't defined for the class 'A'.
-    a = null;
-  }
-  if (a is B) {
-    a = null;
-    print(a.a);
-    print(a.b);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'b' isn't defined for the class 'A'.
-  }
-  if (a is B) {
-    print(a.a);
-    print(a.b);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'b' isn't defined for the class 'A'.
-    {
-      a = null;
-    }
-    print(a.a);
-    print(a.b);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'b' isn't defined for the class 'A'.
-  }
-}
diff --git a/tests/language_2/type_promotion/assignment_defeats_promotion_and_test.dart b/tests/language_2/type_promotion/assignment_defeats_promotion_and_test.dart
deleted file mode 100644
index fcee4184a61..00000000000
--- a/tests/language_2/type_promotion/assignment_defeats_promotion_and_test.dart
+++ /dev/null
@@ -1,242 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that an assignment on the right hand side of `&&` defeats promotion
-// after the entire `&&` expression, not just in the right hand side.
-
-class A {}
-
-class B extends A {
-  // An invocation of the form `x.checkB()` verifies that the static type of `x`
-  // is `B`, since this method is not defined anywhere else.
-  dynamic checkB() => null;
-}
-
-class C extends A {}
-
-class D extends B {}
-
-// An invocation of the form `checkNotB(x)` verifies that the static type of `x`
-// is not `B`, since `B` is not assignable to `C`.
-dynamic checkNotB(C c) => null;
-
-// An invocation of the form `alwaysTrue(x)` always returns `true` regardless of
-// `x`.
-bool alwaysTrue(dynamic x) => true;
-
-ifSimple([A a]) {
-  if (a is B && alwaysTrue(a = null)) {
-    checkNotB(a);
-  }
-}
-
-ifChainedAndsUnparenthesizedUnrelated([A a, Object x]) {
-  if (a is B && alwaysTrue(a = null) && x is int) {
-    checkNotB(a);
-  }
-}
-
-ifChainedAndsUnparenthesizedRePromote([A a]) {
-  if (a is B && alwaysTrue(a = null) && a is B) {
-    a.checkB();
-  }
-}
-
-ifChainedAndsUnparenthesizedAssignLast([A a, Object x]) {
-  if (a is B && x is int && alwaysTrue(a = null)) {
-    checkNotB(a);
-  }
-}
-
-ifChainedAndsUnparenthesizedDeeperPromote([A a]) {
-  if (a is B && a is D && alwaysTrue(a = null)) {
-    checkNotB(a);
-  }
-}
-
-ifChainedAndsParenLeftUnrelated([A a, Object x]) {
-  if ((a is B && alwaysTrue(a = null)) && x is int) {
-    checkNotB(a);
-  }
-}
-
-ifChainedAndsParenLeftRePromote([A a]) {
-  if ((a is B && alwaysTrue(a = null)) && a is B) {
-    a.checkB();
-  }
-}
-
-ifChainedAndsParenLeftAssignLast([A a, Object x]) {
-  if ((a is B && x is int) && alwaysTrue(a = null)) {
-    checkNotB(a);
-  }
-}
-
-ifChainedAndsParenLeftDeeperPromote([A a]) {
-  if ((a is B && a is D) && alwaysTrue(a = null)) {
-    checkNotB(a);
-  }
-}
-
-ifChainedAndsParenRightUnrelated([A a, Object x]) {
-  if (a is B && (alwaysTrue(a = null) && x is int)) {
-    checkNotB(a);
-  }
-}
-
-ifChainedAndsParenRightRePromote([A a]) {
-  if (a is B && (alwaysTrue(a = null) && a is B)) {
-    checkNotB(a);
-  }
-}
-
-ifChainedAndsParenRightAssignLast([A a, Object x]) {
-  if (a is B && (x is int && alwaysTrue(a = null))) {
-    checkNotB(a);
-  }
-}
-
-ifChainedAndsParenRightDeeperPromote([A a]) {
-  if (a is B && (a is D && alwaysTrue(a = null))) {
-    checkNotB(a);
-  }
-}
-
-conditionalSimple([A a]) {
-  a is B && alwaysTrue(a = null) ? checkNotB(a) : null;
-}
-
-conditionalChainedAndsUnparenthesizedUnrelated([A a, Object x]) {
-  a is B && alwaysTrue(a = null) && x is int ? checkNotB(a) : null;
-}
-
-conditionalChainedAndsUnparenthesizedRePromote([A a]) {
-  a is B && alwaysTrue(a = null) && a is B ? a.checkB() : null;
-}
-
-conditionalChainedAndsUnparenthesizedAssignLast([A a, Object x]) {
-  a is B && x is int && alwaysTrue(a = null) ? checkNotB(a) : null;
-}
-
-conditionalChainedAndsUnparenthesizedDeeperPromote([A a]) {
-  a is B && a is D && alwaysTrue(a = null) ? checkNotB(a) : null;
-}
-
-conditionalChainedAndsParenLeftUnrelated([A a, Object x]) {
-  (a is B && alwaysTrue(a = null)) && x is int ? checkNotB(a) : null;
-}
-
-conditionalChainedAndsParenLeftRePromote([A a]) {
-  (a is B && alwaysTrue(a = null)) && a is B ? a.checkB() : null;
-}
-
-conditionalChainedAndsParenLeftAssignLast([A a, Object x]) {
-  (a is B && x is int) && alwaysTrue(a = null) ? checkNotB(a) : null;
-}
-
-conditionalChainedAndsParenLeftDeeperPromote([A a]) {
-  (a is B && a is D) && alwaysTrue(a = null) ? checkNotB(a) : null;
-}
-
-conditionalChainedAndsParenRightUnrelated([A a, Object x]) {
-  a is B && (alwaysTrue(a = null) && x is int) ? checkNotB(a) : null;
-}
-
-conditionalChainedAndsParenRightRePromote([A a]) {
-  a is B && (alwaysTrue(a = null) && a is B) ? checkNotB(a) : null;
-}
-
-conditionalChainedAndsParenRightAssignLast([A a, Object x]) {
-  a is B && (x is int && alwaysTrue(a = null)) ? checkNotB(a) : null;
-}
-
-conditionalChainedAndsParenRightDeeperPromote([A a]) {
-  a is B && (a is D && alwaysTrue(a = null)) ? checkNotB(a) : null;
-}
-
-andSimple([A a]) {
-  a is B && alwaysTrue(a = null) && checkNotB(a);
-}
-
-andChainedAndsUnparenthesizedUnrelated([A a, Object x]) {
-  a is B && alwaysTrue(a = null) && x is int && checkNotB(a);
-}
-
-andChainedAndsUnparenthesizedAssignLast([A a, Object x]) {
-  a is B && x is int && alwaysTrue(a = null) && checkNotB(a);
-}
-
-andChainedAndsUnparenthesizedDeeperPromote([A a]) {
-  a is B && a is D && alwaysTrue(a = null) && checkNotB(a);
-}
-
-andChainedAndsParenLeftUnrelated([A a, Object x]) {
-  (a is B && alwaysTrue(a = null)) && x is int && checkNotB(a);
-}
-
-andChainedAndsParenLeftAssignLast([A a, Object x]) {
-  (a is B && x is int) && alwaysTrue(a = null) && checkNotB(a);
-}
-
-andChainedAndsParenLeftDeeperPromote([A a]) {
-  (a is B && a is D) && alwaysTrue(a = null) && checkNotB(a);
-}
-
-andChainedAndsParenRightUnrelated([A a, Object x]) {
-  a is B && (alwaysTrue(a = null) && x is int) && checkNotB(a);
-}
-
-andChainedAndsParenRightRePromote([A a]) {
-  a is B && (alwaysTrue(a = null) && a is B) && checkNotB(a);
-}
-
-andChainedAndsParenRightAssignLast([A a, Object x]) {
-  a is B && (x is int && alwaysTrue(a = null)) && checkNotB(a);
-}
-
-andChainedAndsParenRightDeeperPromote([A a]) {
-  a is B && (a is D && alwaysTrue(a = null)) && checkNotB(a);
-}
-
-main() {
-  ifSimple();
-  ifChainedAndsUnparenthesizedUnrelated();
-  ifChainedAndsUnparenthesizedRePromote();
-  ifChainedAndsUnparenthesizedAssignLast();
-  ifChainedAndsUnparenthesizedDeeperPromote();
-  ifChainedAndsParenLeftUnrelated();
-  ifChainedAndsParenLeftRePromote();
-  ifChainedAndsParenLeftAssignLast();
-  ifChainedAndsParenLeftDeeperPromote();
-  ifChainedAndsParenRightUnrelated();
-  ifChainedAndsParenRightRePromote();
-  ifChainedAndsParenRightAssignLast();
-  ifChainedAndsParenRightDeeperPromote();
-  conditionalSimple();
-  conditionalChainedAndsUnparenthesizedUnrelated();
-  conditionalChainedAndsUnparenthesizedRePromote();
-  conditionalChainedAndsUnparenthesizedAssignLast();
-  conditionalChainedAndsUnparenthesizedDeeperPromote();
-  conditionalChainedAndsParenLeftUnrelated();
-  conditionalChainedAndsParenLeftRePromote();
-  conditionalChainedAndsParenLeftAssignLast();
-  conditionalChainedAndsParenLeftDeeperPromote();
-  conditionalChainedAndsParenRightUnrelated();
-  conditionalChainedAndsParenRightRePromote();
-  conditionalChainedAndsParenRightAssignLast();
-  conditionalChainedAndsParenRightDeeperPromote();
-  andSimple();
-  andChainedAndsUnparenthesizedUnrelated();
-  andChainedAndsUnparenthesizedAssignLast();
-  andChainedAndsUnparenthesizedDeeperPromote();
-  andChainedAndsParenLeftUnrelated();
-  andChainedAndsParenLeftAssignLast();
-  andChainedAndsParenLeftDeeperPromote();
-  andChainedAndsParenRightUnrelated();
-  andChainedAndsParenRightRePromote();
-  andChainedAndsParenRightAssignLast();
-  andChainedAndsParenRightDeeperPromote();
-}
diff --git a/tests/language_2/type_promotion/assignment_defeats_promotion_cascaded_test.dart b/tests/language_2/type_promotion/assignment_defeats_promotion_cascaded_test.dart
deleted file mode 100644
index 4648a371571..00000000000
--- a/tests/language_2/type_promotion/assignment_defeats_promotion_cascaded_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that an assignment inside a complex promotion scope defeats all pending
-// promotions, whether introduced directly or through LHS or RHS of a logical
-// and expression.
-
-class A {}
-
-class B extends A {}
-
-class C extends A {}
-
-class D extends B {}
-
-class E extends D {}
-
-// An invocation of the form `checkNotB(x)` verifies that the static type of `x`
-// is not `B`, since `B` is not assignable to `C`.
-dynamic checkNotB(C c) => null;
-
-test([A a]) {
-  if (a is B && a is D) {
-    if (a is E) {
-      checkNotB(a);
-      a = null;
-    }
-  }
-}
-
-main() {
-  test();
-}
diff --git a/tests/language_2/type_promotion/assignment_defeats_promotion_immediate_test.dart b/tests/language_2/type_promotion/assignment_defeats_promotion_immediate_test.dart
deleted file mode 100644
index 904ee16f7ca..00000000000
--- a/tests/language_2/type_promotion/assignment_defeats_promotion_immediate_test.dart
+++ /dev/null
@@ -1,85 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that an assignment inside a promotion scope defeats the promotion, even
-// if the assignment fills the scope (there are no intervening syntactic
-// constructs).
-
-class A {}
-
-class B extends A {}
-
-class C extends A {}
-
-// An invocation of the form `checkNotB(x)` verifies that the static type of `x`
-// is not `B`, since `B` is not assignable to `C`.
-dynamic checkNotB(C c) => null;
-
-conditional([A a]) {
-  a is B ? a = checkNotB(a) : null;
-}
-
-ifStatementWithoutElse([A a]) {
-  if (a is B) a = checkNotB(a);
-}
-
-ifStatementWithElse([A a]) {
-  if (a is B)
-    a = checkNotB(a);
-  else
-    null;
-}
-
-ifElementWithoutElseList([A a]) {
-  [if (a is B) a = checkNotB(a)];
-}
-
-ifElementWithoutElseSet([A a]) {
-  ({if (a is B) a = checkNotB(a)});
-}
-
-ifElementWithoutElseMapKey([A a]) {
-  ({if (a is B) a = checkNotB(a): null});
-}
-
-ifElementWithoutElseMapValue([A a]) {
-  ({if (a is B) null: a = checkNotB(a)});
-}
-
-ifElementWithElseList([A a]) {
-  [if (a is B) a = checkNotB(a) else null];
-}
-
-ifElementWithElseSet([A a]) {
-  ({if (a is B) a = checkNotB(a) else null});
-}
-
-ifElementWithElseMapKey([A a]) {
-  ({if (a is B) a = checkNotB(a): null else null: null});
-}
-
-ifElementWithElseMapValue([A a]) {
-  ({if (a is B) null: a = checkNotB(a) else null: null});
-}
-
-logicalAnd([A a]) {
-  a is B && (a = checkNotB(a));
-}
-
-main() {
-  conditional();
-  ifStatementWithoutElse();
-  ifStatementWithElse();
-  ifElementWithoutElseList();
-  ifElementWithoutElseSet();
-  ifElementWithoutElseMapKey();
-  ifElementWithoutElseMapValue();
-  ifElementWithElseList();
-  ifElementWithElseSet();
-  ifElementWithElseMapKey();
-  ifElementWithElseMapValue();
-  logicalAnd();
-}
diff --git a/tests/language_2/type_promotion/assignment_defeats_promotion_lhs_and_test.dart b/tests/language_2/type_promotion/assignment_defeats_promotion_lhs_and_test.dart
deleted file mode 100644
index bfe5800759d..00000000000
--- a/tests/language_2/type_promotion/assignment_defeats_promotion_lhs_and_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that an assignment on the left hand side of `&&` defeats promotion after
-// the entire `&&` expression, even if the promotion is on the right hand side
-// of `&&`.
-//
-// Note that it is not strictly necessary for soundness to defeat promotion
-// under this circumstance, but it is in the spec.
-
-class A {}
-
-class B extends A {}
-
-class C extends A {}
-
-// An invocation of the form `checkNotB(x)` verifies that the static type of `x`
-// is not `B`, since `B` is not assignable to `C`.
-dynamic checkNotB(C c) => null;
-
-// An invocation of the form `alwaysTrue(x)` always returns `true` regardless of
-// `x`.
-bool alwaysTrue(dynamic x) => true;
-
-andChainedAndsUnparenthesizedRePromote([A a]) {
-  a is B && alwaysTrue(a = null) && a is B && checkNotB(a);
-}
-
-andChainedAndsParenLeftRePromote([A a]) {
-  (a is B && alwaysTrue(a = null)) && a is B && checkNotB(a);
-}
-
-main() {
-  andChainedAndsUnparenthesizedRePromote();
-  andChainedAndsParenLeftRePromote();
-}
diff --git a/tests/language_2/type_promotion/assignment_defeats_promotion_nested_other_bool_test.dart b/tests/language_2/type_promotion/assignment_defeats_promotion_nested_other_bool_test.dart
deleted file mode 100644
index befa43c6cef..00000000000
--- a/tests/language_2/type_promotion/assignment_defeats_promotion_nested_other_bool_test.dart
+++ /dev/null
@@ -1,120 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that an assignment inside a promotion scope defeats the promotion, even
-// if it is nested inside another unrelated promotion scope.
-
-class A {}
-
-class B extends A {}
-
-class C extends A {}
-
-// An invocation of the form `checkNotB(x)` verifies that the static type of `x`
-// is not `B`, since `B` is not assignable to `C`.
-checkNotB(C c) {}
-
-// An invocation of the form `alwaysTrue(x)` always returns `true` regardless of
-// `x`.
-bool alwaysTrue(dynamic x) => true;
-
-noNesting([A a]) {
-  if (a is B) {
-    checkNotB(a);
-    a = null;
-  }
-}
-
-nestedInsideConditionalExpressionThen([A a, bool b = true]) {
-  if (a is B) {
-    checkNotB(a);
-    b ? a = null : null;
-  }
-}
-
-nestedInsideConditionalExpressionElse([A a, bool b = true]) {
-  if (a is B) {
-    checkNotB(a);
-    b ? null : a = null;
-  }
-}
-
-nestedInsideIfStatementThenNoElse([A a, bool b = true]) {
-  if (a is B) {
-    checkNotB(a);
-    if (b) {
-      a = null;
-    }
-  }
-}
-
-nestedInsideIfStatementThenWithElse([A a, bool b = true]) {
-  if (a is B) {
-    checkNotB(a);
-    if (b) {
-      a = null;
-    } else {}
-  }
-}
-
-nestedInsideIfStatementElse([A a, bool b = true]) {
-  if (a is B) {
-    checkNotB(a);
-    if (b) {
-    } else {
-      a = null;
-    }
-  }
-}
-
-nestedInsideIfElementThenNoElse([A a, bool b = true]) {
-  if (a is B) {
-    checkNotB(a);
-    [if (b) alwaysTrue(a = null)];
-  }
-}
-
-nestedInsideIfElementThenWithElse([A a, bool b = true]) {
-  if (a is B) {
-    checkNotB(a);
-    [if (b) alwaysTrue(a = null) else 0];
-  }
-}
-
-nestedInsideIfElementElse([A a, bool b = true]) {
-  if (a is B) {
-    checkNotB(a);
-    [if (b) 0 else alwaysTrue(a = null)];
-  }
-}
-
-nestedInsideRhsOfAnd([A a, bool b = true]) {
-  if (a is B) {
-    checkNotB(a);
-    b && alwaysTrue(a = null);
-  }
-}
-
-nestedInsideRhsOfOr([A a, bool b = true]) {
-  if (a is B) {
-    checkNotB(a);
-    b || alwaysTrue(a = null);
-  }
-}
-
-main() {
-  noNesting();
-  nestedInsideConditionalExpressionThen();
-  nestedInsideConditionalExpressionElse();
-  nestedInsideIfStatementThenNoElse();
-  nestedInsideIfStatementThenWithElse();
-  nestedInsideIfStatementElse();
-  nestedInsideIfElementThenNoElse();
-  nestedInsideIfElementThenWithElse();
-  nestedInsideIfElementElse();
-  nestedInsideRhsOfAnd();
-  nestedInsideRhsOfOr();
-}
diff --git a/tests/language_2/type_promotion/assignment_defeats_promotion_nested_other_test.dart b/tests/language_2/type_promotion/assignment_defeats_promotion_nested_other_test.dart
deleted file mode 100644
index c53ba0fc75d..00000000000
--- a/tests/language_2/type_promotion/assignment_defeats_promotion_nested_other_test.dart
+++ /dev/null
@@ -1,120 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that an assignment inside a promotion scope defeats the promotion, even
-// if it is nested inside another unrelated promotion scope.
-
-class A {}
-
-class B extends A {}
-
-class C extends A {}
-
-// An invocation of the form `checkNotB(x)` verifies that the static type of `x`
-// is not `B`, since `B` is not assignable to `C`.
-checkNotB(C c) {}
-
-// An invocation of the form `alwaysTrue(x)` always returns `true` regardless of
-// `x`.
-bool alwaysTrue(dynamic x) => true;
-
-noNesting([A a]) {
-  if (a is B) {
-    checkNotB(a);
-    a = null;
-  }
-}
-
-nestedInsideConditionalExpressionThen([A a, Object x]) {
-  if (a is B) {
-    checkNotB(a);
-    x is int ? a = null : null;
-  }
-}
-
-nestedInsideConditionalExpressionElse([A a, Object x]) {
-  if (a is B) {
-    checkNotB(a);
-    x is int ? null : a = null;
-  }
-}
-
-nestedInsideIfStatementThenNoElse([A a, Object x]) {
-  if (a is B) {
-    checkNotB(a);
-    if (x is int) {
-      a = null;
-    }
-  }
-}
-
-nestedInsideIfStatementThenWithElse([A a, Object x]) {
-  if (a is B) {
-    checkNotB(a);
-    if (x is int) {
-      a = null;
-    } else {}
-  }
-}
-
-nestedInsideIfStatementElse([A a, Object x]) {
-  if (a is B) {
-    checkNotB(a);
-    if (x is int) {
-    } else {
-      a = null;
-    }
-  }
-}
-
-nestedInsideIfElementThenNoElse([A a, Object x]) {
-  if (a is B) {
-    checkNotB(a);
-    [if (x is int) alwaysTrue(a = null)];
-  }
-}
-
-nestedInsideIfElementThenWithElse([A a, Object x]) {
-  if (a is B) {
-    checkNotB(a);
-    [if (x is int) alwaysTrue(a = null) else 0];
-  }
-}
-
-nestedInsideIfElementElse([A a, Object x]) {
-  if (a is B) {
-    checkNotB(a);
-    [if (x is int) 0 else alwaysTrue(a = null)];
-  }
-}
-
-nestedInsideRhsOfAnd([A a, Object x]) {
-  if (a is B) {
-    checkNotB(a);
-    x is int && alwaysTrue(a = null);
-  }
-}
-
-nestedInsideRhsOfOr([A a, Object x]) {
-  if (a is B) {
-    checkNotB(a);
-    x is int || alwaysTrue(a = null);
-  }
-}
-
-main() {
-  noNesting();
-  nestedInsideConditionalExpressionThen();
-  nestedInsideConditionalExpressionElse();
-  nestedInsideIfStatementThenNoElse();
-  nestedInsideIfStatementThenWithElse();
-  nestedInsideIfStatementElse();
-  nestedInsideIfElementThenNoElse();
-  nestedInsideIfElementThenWithElse();
-  nestedInsideIfElementElse();
-  nestedInsideRhsOfAnd();
-  nestedInsideRhsOfOr();
-}
diff --git a/tests/language_2/type_promotion/assignment_defeats_promotion_nested_same_test.dart b/tests/language_2/type_promotion/assignment_defeats_promotion_nested_same_test.dart
deleted file mode 100644
index 57c6d49d4cb..00000000000
--- a/tests/language_2/type_promotion/assignment_defeats_promotion_nested_same_test.dart
+++ /dev/null
@@ -1,123 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that an assignment inside a promotion scope defeats the promotion, even
-// if it is nested inside another promotion scope that promotes the same
-// variable.
-
-class A {}
-
-class B extends A {}
-
-class C extends A {}
-
-class D extends B {}
-
-// An invocation of the form `checkNotB(x)` verifies that the static type of `x`
-// is not `B`, since `B` is not assignable to `C`.
-checkNotB(C c) {}
-
-// An invocation of the form `alwaysTrue(x)` always returns `true` regardless of
-// `x`.
-bool alwaysTrue(dynamic x) => true;
-
-noNesting([A a]) {
-  if (a is B) {
-    checkNotB(a);
-    a = null;
-  }
-}
-
-nestedInsideConditionalExpressionThen([A a]) {
-  if (a is B) {
-    checkNotB(a);
-    a is D ? a = null : null;
-  }
-}
-
-nestedInsideConditionalExpressionElse([A a]) {
-  if (a is B) {
-    checkNotB(a);
-    a is D ? null : a = null;
-  }
-}
-
-nestedInsideIfStatementThenNoElse([A a]) {
-  if (a is B) {
-    checkNotB(a);
-    if (a is D) {
-      a = null;
-    }
-  }
-}
-
-nestedInsideIfStatementThenWithElse([A a]) {
-  if (a is B) {
-    checkNotB(a);
-    if (a is D) {
-      a = null;
-    } else {}
-  }
-}
-
-nestedInsideIfStatementElse([A a]) {
-  if (a is B) {
-    checkNotB(a);
-    if (a is D) {
-    } else {
-      a = null;
-    }
-  }
-}
-
-nestedInsideIfElementThenNoElse([A a]) {
-  if (a is B) {
-    checkNotB(a);
-    [if (a is D) alwaysTrue(a = null)];
-  }
-}
-
-nestedInsideIfElementThenWithElse([A a]) {
-  if (a is B) {
-    checkNotB(a);
-    [if (a is D) alwaysTrue(a = null) else 0];
-  }
-}
-
-nestedInsideIfElementElse([A a]) {
-  if (a is B) {
-    checkNotB(a);
-    [if (a is D) 0 else alwaysTrue(a = null)];
-  }
-}
-
-nestedInsideRhsOfAnd([A a]) {
-  if (a is B) {
-    checkNotB(a);
-    a is D && alwaysTrue(a = null);
-  }
-}
-
-nestedInsideRhsOfOr([A a]) {
-  if (a is B) {
-    checkNotB(a);
-    a is D || alwaysTrue(a = null);
-  }
-}
-
-main() {
-  noNesting();
-  nestedInsideConditionalExpressionThen();
-  nestedInsideConditionalExpressionElse();
-  nestedInsideIfStatementThenNoElse();
-  nestedInsideIfStatementThenWithElse();
-  nestedInsideIfStatementElse();
-  nestedInsideIfElementThenNoElse();
-  nestedInsideIfElementThenWithElse();
-  nestedInsideIfElementElse();
-  nestedInsideRhsOfAnd();
-  nestedInsideRhsOfOr();
-}
diff --git a/tests/language_2/type_promotion/closure_runtime_1_test.dart b/tests/language_2/type_promotion/closure_runtime_1_test.dart
deleted file mode 100644
index bca51c081f3..00000000000
--- a/tests/language_2/type_promotion/closure_runtime_1_test.dart
+++ /dev/null
@@ -1,205 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test type promotion of locals potentially mutated in closures.
-
-import "package:meta/meta.dart" show virtual;
-
-class A {
-  var a = "a";
-  A operator +(int i) => this;
-}
-
-class B extends A {
-  var b = "b";
-}
-
-class C extends B {
-  var c = "c";
-}
-
-class D extends A {
-  var d = "d";
-}
-
-class E extends D implements C {
-  var a = "";
-  var b = "";
-  var c = "";
-  var d = "";
-}
-
-func(x) => true;
-
-void main() {
-  test1();
-  test2();
-  test3();
-  test3a();
-  test4();
-  test5();
-  test6();
-  test6a();
-  test7();
-  test8();
-  test9();
-  test10();
-  test11();
-  test12();
-}
-
-void test1() {
-  A a = new E();
-  if (a is B) {
-    print(a.a);
-
-  }
-  void foo() {
-    a = new D();
-  }
-}
-
-void test2() {
-  A a = new E();
-  void foo() {
-    a = new D();
-  }
-
-  if (a is B) {
-    print(a.a);
-
-  }
-}
-
-void test3() {
-  A a = new E();
-  void foo() {
-    a = new D();
-  }
-
-  if (a is B) {
-    print(a.a);
-
-    void foo() {
-      a = new D();
-    }
-
-    print(a.a);
-
-  }
-}
-
-void test3a() {
-  A a = new E();
-  void foo() {
-    a = new D();
-  }
-
-  if ((((a)) is B)) {
-    print(a.a);
-
-    void foo() {
-      a = new D();
-    }
-
-    print(a.a);
-
-  }
-}
-
-void test4() {
-  A a = new E();
-  if (a is B) {
-    func(() => a.b);
-    print(a.a);
-    print(a.b);
-  }
-}
-
-void test5() {
-  A a = new E();
-  if (a is B) {
-
-    print(a.a);
-  }
-  a = null;
-}
-
-void test6() {
-  A a = new E();
-  if (a is B) {
-    func(() => a);
-    print(a.a);
-
-  }
-  a = null;
-}
-
-void test6a() {
-  A a = new E();
-  if (((a) is B)) {
-    func(() => a);
-    print(a.a);
-
-  }
-  a = null;
-}
-
-void test7() {
-  A a = new E();
-  if (a is B && func(() => a)) {
-    print(a.a);
-
-  }
-  a = null;
-}
-
-void test8() {
-  A a = new E();
-  if (a is B
-
-      ) {
-    print(a.a);
-  }
-  a = null;
-}
-
-void test9() {
-  A a = new E();
-
-  a = null;
-}
-
-void test10() {
-  List<A> a = <E>[new E()];
-  if (a is List<B>) {
-    func(() => a[0]);
-
-  }
-  a = null;
-}
-
-void test11() {
-  List<A> a = <E>[new E()];
-  if (a is List<B>) {
-    func(() => a[0] = null);
-
-  }
-  a = null;
-}
-
-void test12() {
-  A a = new E();
-  if (a is B) {
-    func(() => a++);
-    print(a.a);
-
-  }
-  a = null;
-}
diff --git a/tests/language_2/type_promotion/closure_runtime_2_test.dart b/tests/language_2/type_promotion/closure_runtime_2_test.dart
deleted file mode 100644
index 94e686b0837..00000000000
--- a/tests/language_2/type_promotion/closure_runtime_2_test.dart
+++ /dev/null
@@ -1,205 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test type promotion of locals potentially mutated in closures.
-
-import "package:meta/meta.dart" show virtual;
-
-class A {
-  var a = "a";
-  A operator +(int i) => this;
-}
-
-class B extends A {
-  var b = "b";
-}
-
-class C extends B {
-  var c = "c";
-}
-
-class D extends A {
-  var d = "d";
-}
-
-class E extends D implements C {
-  var a = "";
-  var b = "";
-  var c = "";
-  var d = "";
-}
-
-func(x) => true;
-
-void main() {
-  test1();
-  test2();
-  test3();
-  test3a();
-  test4();
-  test5();
-  test6();
-  test6a();
-  test7();
-  test8();
-  test9();
-  test10();
-  test11();
-  test12();
-}
-
-void test1() {
-  A a = new E();
-  if (a is B) {
-    print(a.a);
-
-  }
-  void foo() {
-    a = new D();
-  }
-}
-
-void test2() {
-  A a = new E();
-  void foo() {
-    a = new D();
-  }
-
-  if (a is B) {
-    print(a.a);
-
-  }
-}
-
-void test3() {
-  A a = new E();
-  void foo() {
-    a = new D();
-  }
-
-  if (a is B) {
-    print(a.a);
-
-    void foo() {
-      a = new D();
-    }
-
-    print(a.a);
-
-  }
-}
-
-void test3a() {
-  A a = new E();
-  void foo() {
-    a = new D();
-  }
-
-  if ((((a)) is B)) {
-    print(a.a);
-
-    void foo() {
-      a = new D();
-    }
-
-    print(a.a);
-
-  }
-}
-
-void test4() {
-  A a = new E();
-  if (a is B) {
-
-    print(a.a);
-    print(a.b);
-  }
-}
-
-void test5() {
-  A a = new E();
-  if (a is B) {
-
-    print(a.a);
-  }
-  a = null;
-}
-
-void test6() {
-  A a = new E();
-  if (a is B) {
-    func(() => a);
-    print(a.a);
-
-  }
-  a = null;
-}
-
-void test6a() {
-  A a = new E();
-  if (((a) is B)) {
-    func(() => a);
-    print(a.a);
-
-  }
-  a = null;
-}
-
-void test7() {
-  A a = new E();
-  if (a is B && func(() => a)) {
-    print(a.a);
-    print(a.b);
-  }
-  a = null;
-}
-
-void test8() {
-  A a = new E();
-  if (a is B
-
-      ) {
-    print(a.a);
-  }
-  a = null;
-}
-
-void test9() {
-  A a = new E();
-
-  a = null;
-}
-
-void test10() {
-  List<A> a = <E>[new E()];
-  if (a is List<B>) {
-    func(() => a[0]);
-
-  }
-  a = null;
-}
-
-void test11() {
-  List<A> a = <E>[new E()];
-  if (a is List<B>) {
-    func(() => a[0] = null);
-
-  }
-  a = null;
-}
-
-void test12() {
-  A a = new E();
-  if (a is B) {
-    func(() => a++);
-    print(a.a);
-
-  }
-  a = null;
-}
diff --git a/tests/language_2/type_promotion/closure_runtime_test.dart b/tests/language_2/type_promotion/closure_runtime_test.dart
deleted file mode 100644
index 8d5414c2741..00000000000
--- a/tests/language_2/type_promotion/closure_runtime_test.dart
+++ /dev/null
@@ -1,205 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test type promotion of locals potentially mutated in closures.
-
-import "package:meta/meta.dart" show virtual;
-
-class A {
-  var a = "a";
-  A operator +(int i) => this;
-}
-
-class B extends A {
-  var b = "b";
-}
-
-class C extends B {
-  var c = "c";
-}
-
-class D extends A {
-  var d = "d";
-}
-
-class E extends D implements C {
-  var a = "";
-  var b = "";
-  var c = "";
-  var d = "";
-}
-
-func(x) => true;
-
-void main() {
-  test1();
-  test2();
-  test3();
-  test3a();
-  test4();
-  test5();
-  test6();
-  test6a();
-  test7();
-  test8();
-  test9();
-  test10();
-  test11();
-  test12();
-}
-
-void test1() {
-  A a = new E();
-  if (a is B) {
-    print(a.a);
-
-  }
-  void foo() {
-    a = new D();
-  }
-}
-
-void test2() {
-  A a = new E();
-  void foo() {
-    a = new D();
-  }
-
-  if (a is B) {
-    print(a.a);
-
-  }
-}
-
-void test3() {
-  A a = new E();
-  void foo() {
-    a = new D();
-  }
-
-  if (a is B) {
-    print(a.a);
-
-    void foo() {
-      a = new D();
-    }
-
-    print(a.a);
-
-  }
-}
-
-void test3a() {
-  A a = new E();
-  void foo() {
-    a = new D();
-  }
-
-  if ((((a)) is B)) {
-    print(a.a);
-
-    void foo() {
-      a = new D();
-    }
-
-    print(a.a);
-
-  }
-}
-
-void test4() {
-  A a = new E();
-  if (a is B) {
-
-    print(a.a);
-    print(a.b);
-  }
-}
-
-void test5() {
-  A a = new E();
-  if (a is B) {
-
-    print(a.a);
-  }
-  a = null;
-}
-
-void test6() {
-  A a = new E();
-  if (a is B) {
-    func(() => a);
-    print(a.a);
-
-  }
-  a = null;
-}
-
-void test6a() {
-  A a = new E();
-  if (((a) is B)) {
-    func(() => a);
-    print(a.a);
-
-  }
-  a = null;
-}
-
-void test7() {
-  A a = new E();
-  if (a is B && func(() => a)) {
-    print(a.a);
-
-  }
-  a = null;
-}
-
-void test8() {
-  A a = new E();
-  if (a is B
-
-      ) {
-    print(a.a);
-  }
-  a = null;
-}
-
-void test9() {
-  A a = new E();
-
-  a = null;
-}
-
-void test10() {
-  List<A> a = <E>[new E()];
-  if (a is List<B>) {
-    func(() => a[0]);
-
-  }
-  a = null;
-}
-
-void test11() {
-  List<A> a = <E>[new E()];
-  if (a is List<B>) {
-    func(() => a[0] = null);
-
-  }
-  a = null;
-}
-
-void test12() {
-  A a = new E();
-  if (a is B) {
-    func(() => a++);
-    print(a.a);
-
-  }
-  a = null;
-}
diff --git a/tests/language_2/type_promotion/closure_test.dart b/tests/language_2/type_promotion/closure_test.dart
deleted file mode 100644
index 28c06252129..00000000000
--- a/tests/language_2/type_promotion/closure_test.dart
+++ /dev/null
@@ -1,244 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test type promotion of locals potentially mutated in closures.
-
-import "package:meta/meta.dart" show virtual;
-
-class A {
-  var a = "a";
-  A operator +(int i) => this;
-}
-
-class B extends A {
-  var b = "b";
-}
-
-class C extends B {
-  var c = "c";
-}
-
-class D extends A {
-  var d = "d";
-}
-
-class E extends D implements C {
-  var a = "";
-  var b = "";
-  var c = "";
-  var d = "";
-}
-
-func(x) => true;
-
-void main() {
-  test1();
-  test2();
-  test3();
-  test3a();
-  test4();
-  test5();
-  test6();
-  test6a();
-  test7();
-  test8();
-  test9();
-  test10();
-  test11();
-  test12();
-}
-
-void test1() {
-  A a = new E();
-  if (a is B) {
-    print(a.a);
-    print(a.b);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'b' isn't defined for the class 'A'.
-  }
-  void foo() {
-    a = new D();
-  }
-}
-
-void test2() {
-  A a = new E();
-  void foo() {
-    a = new D();
-  }
-
-  if (a is B) {
-    print(a.a);
-    print(a.b);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'b' isn't defined for the class 'A'.
-  }
-}
-
-void test3() {
-  A a = new E();
-  void foo() {
-    a = new D();
-  }
-
-  if (a is B) {
-    print(a.a);
-    print(a.b);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'b' isn't defined for the class 'A'.
-    void foo() {
-      a = new D();
-    }
-
-    print(a.a);
-    print(a.b);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'b' isn't defined for the class 'A'.
-  }
-}
-
-void test3a() {
-  A a = new E();
-  void foo() {
-    a = new D();
-  }
-
-  if ((((a)) is B)) {
-    print(a.a);
-    print(a.b);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'b' isn't defined for the class 'A'.
-    void foo() {
-      a = new D();
-    }
-
-    print(a.a);
-    print(a.b);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'b' isn't defined for the class 'A'.
-  }
-}
-
-void test4() {
-  A a = new E();
-  if (a is B) {
-    func(() => a.b);
-    print(a.a);
-    print(a.b);
-  }
-}
-
-void test5() {
-  A a = new E();
-  if (a is B) {
-    func(() => a.b);
-    //           ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'b' isn't defined for the class 'A'.
-    print(a.a);
-  }
-  a = null;
-}
-
-void test6() {
-  A a = new E();
-  if (a is B) {
-    func(() => a);
-    print(a.a);
-    print(a.b);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'b' isn't defined for the class 'A'.
-  }
-  a = null;
-}
-
-void test6a() {
-  A a = new E();
-  if (((a) is B)) {
-    func(() => a);
-    print(a.a);
-    print(a.b);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'b' isn't defined for the class 'A'.
-  }
-  a = null;
-}
-
-void test7() {
-  A a = new E();
-  if (a is B && func(() => a)) {
-    print(a.a);
-    print(a.b);
-  }
-  a = null;
-}
-
-void test8() {
-  A a = new E();
-  if (a is B
-      && func(() => a.b)
-      //              ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'b' isn't defined for the class 'A'.
-      ) {
-    print(a.a);
-  }
-  a = null;
-}
-
-void test9() {
-  A a = new E();
-  var b = a is B ? func(() => a.b) : false;
-  //                            ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'b' isn't defined for the class 'A'.
-  a = null;
-}
-
-void test10() {
-  List<A> a = <E>[new E()];
-  if (a is List<B>) {
-    func(() => a[0]);
-    print(a[0].b);
-    //         ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'b' isn't defined for the class 'A'.
-  }
-  a = null;
-}
-
-void test11() {
-  List<A> a = <E>[new E()];
-  if (a is List<B>) {
-    func(() => a[0] = null);
-    print(a[0].b);
-    //         ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'b' isn't defined for the class 'A'.
-  }
-  a = null;
-}
-
-void test12() {
-  A a = new E();
-  if (a is B) {
-    func(() => a++);
-    print(a.a);
-    print(a.b);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'b' isn't defined for the class 'A'.
-  }
-  a = null;
-}
diff --git a/tests/language_2/type_promotion/functions_runtime_test.dart b/tests/language_2/type_promotion/functions_runtime_test.dart
deleted file mode 100644
index b3b6db0beff..00000000000
--- a/tests/language_2/type_promotion/functions_runtime_test.dart
+++ /dev/null
@@ -1,129 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test type promotion of functions.
-
-class A {}
-
-class B extends A {}
-
-class C {}
-
-// Subtype relations:
-//
-//   FuncDynToA    == A       Function(dynamic) <:
-//   FuncDynToDyn  == dynamic Function(dynamic) <:> // "void == dynamic"
-//   FuncDynToVoid == void    Function(dynamic) <:
-//   FuncAtoDyn    == dynamic Function(A).
-//
-// Declarations ordered by "super before sub", as is common for classes:
-
-typedef FuncAtoDyn(A a);
-typedef void FuncDynToVoid(x);
-typedef FuncDynToDyn(x);
-typedef A FuncDynToA(x);
-
-A func(x) => null;
-
-A a;
-B b;
-C c;
-
-main() {
-  testFuncAtoDyn();
-  testFuncDynToDyn();
-  testFuncDynToVoid();
-  testFuncDynToA();
-}
-
-testFuncAtoDyn() {
-  FuncAtoDyn funcAtoDyn = func;
-  a = funcAtoDyn(new A());
-  b = funcAtoDyn(new B());
-
-
-  if (funcAtoDyn is FuncDynToDyn) {
-    // Promotion: FuncDynToDyn <: FuncAtoDyn.
-    a = funcAtoDyn(new A());
-    b = funcAtoDyn(new B());
-    c = funcAtoDyn(new C());
-  }
-}
-
-testFuncDynToDyn() {
-  FuncDynToDyn funcDynToDyn = func;
-  a = funcDynToDyn(new A());
-  b = funcDynToDyn(new B());
-  c = funcDynToDyn(new C());
-
-  if (funcDynToDyn is FuncAtoDyn) {
-    // No promotion: FuncAtoDyn <\: FuncDynToDyn.
-    a = funcDynToDyn(new A());
-    b = funcDynToDyn(new B());
-    c = funcDynToDyn(new C());
-  }
-
-  if (funcDynToDyn is FuncDynToVoid) {
-    // Promotion: FuncDynToVoid <: FuncDynToDyn.
-    funcDynToDyn(new A());
-    funcDynToDyn(new B());
-    funcDynToDyn(new C());
-    // Returned value has type `void`, usage is restricted.
-
-  }
-
-  if (funcDynToDyn is FuncDynToA) {
-    // Promotion: FuncDynToA <: FuncDynToDyn.
-    a = funcDynToDyn(new A());
-    b = funcDynToDyn(new B());
-
-  }
-}
-
-testFuncDynToVoid() {
-  FuncDynToVoid funcDynToVoid = func;
-
-
-
-
-  if (funcDynToVoid is FuncDynToDyn) {
-    // Promotion: FuncDynToDyn <:> FuncDynToVoid.
-    a = funcDynToVoid(new A());
-    b = funcDynToVoid(new B());
-    c = funcDynToVoid(new C());
-  }
-
-  if (funcDynToVoid is FuncDynToA) {
-    // Promotion: FuncDynToA <: FuncDynToVoid.
-    a = funcDynToVoid(new A());
-    b = funcDynToVoid(new B());
-
-  }
-}
-
-testFuncDynToA() {
-  FuncDynToA funcDynToA = func;
-  a = funcDynToA(new A());
-  b = funcDynToA(new B());
-
-
-  if (funcDynToA is FuncDynToDyn) {
-    // No promotion: FuncDynToDyn <\: FuncDynToA.
-    a = funcDynToA(new A());
-    b = funcDynToA(new B());
-
-  }
-
-  if (funcDynToA is FuncDynToVoid) {
-    // No promotion: FuncDynToVoid <\: FuncDynToA.
-    a = funcDynToA(new A());
-    b = funcDynToA(new B());
-
-  }
-}
diff --git a/tests/language_2/type_promotion/functions_test.dart b/tests/language_2/type_promotion/functions_test.dart
deleted file mode 100644
index 46f3b43e7e1..00000000000
--- a/tests/language_2/type_promotion/functions_test.dart
+++ /dev/null
@@ -1,166 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test type promotion of functions.
-
-class A {}
-
-class B extends A {}
-
-class C {}
-
-// Subtype relations:
-//
-//   FuncDynToA    == A       Function(dynamic) <:
-//   FuncDynToDyn  == dynamic Function(dynamic) <:> // "void == dynamic"
-//   FuncDynToVoid == void    Function(dynamic) <:
-//   FuncAtoDyn    == dynamic Function(A).
-//
-// Declarations ordered by "super before sub", as is common for classes:
-
-typedef FuncAtoDyn(A a);
-typedef void FuncDynToVoid(x);
-typedef FuncDynToDyn(x);
-typedef A FuncDynToA(x);
-
-A func(x) => null;
-
-A a;
-B b;
-C c;
-
-main() {
-  testFuncAtoDyn();
-  testFuncDynToDyn();
-  testFuncDynToVoid();
-  testFuncDynToA();
-}
-
-testFuncAtoDyn() {
-  FuncAtoDyn funcAtoDyn = func;
-  a = funcAtoDyn(new A());
-  b = funcAtoDyn(new B());
-  c = funcAtoDyn(new C());
-  //             ^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  //                 ^
-  // [cfe] The argument type 'C' can't be assigned to the parameter type 'A'.
-
-  if (funcAtoDyn is FuncDynToDyn) {
-    // Promotion: FuncDynToDyn <: FuncAtoDyn.
-    a = funcAtoDyn(new A());
-    b = funcAtoDyn(new B());
-    c = funcAtoDyn(new C());
-  }
-}
-
-testFuncDynToDyn() {
-  FuncDynToDyn funcDynToDyn = func;
-  a = funcDynToDyn(new A());
-  b = funcDynToDyn(new B());
-  c = funcDynToDyn(new C());
-
-  if (funcDynToDyn is FuncAtoDyn) {
-    // No promotion: FuncAtoDyn <\: FuncDynToDyn.
-    a = funcDynToDyn(new A());
-    b = funcDynToDyn(new B());
-    c = funcDynToDyn(new C());
-  }
-
-  if (funcDynToDyn is FuncDynToVoid) {
-    // Promotion: FuncDynToVoid <: FuncDynToDyn.
-    funcDynToDyn(new A());
-    funcDynToDyn(new B());
-    funcDynToDyn(new C());
-    // Returned value has type `void`, usage is restricted.
-    Object o = funcDynToDyn(null);
-    //         ^^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.USE_OF_VOID_RESULT
-    //                     ^
-    // [cfe] This expression has type 'void' and can't be used.
-  }
-
-  if (funcDynToDyn is FuncDynToA) {
-    // Promotion: FuncDynToA <: FuncDynToDyn.
-    a = funcDynToDyn(new A());
-    b = funcDynToDyn(new B());
-    c = funcDynToDyn(new C());
-    //  ^^^^^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-    //              ^
-    // [cfe] A value of type 'A' can't be assigned to a variable of type 'C'.
-  }
-}
-
-testFuncDynToVoid() {
-  FuncDynToVoid funcDynToVoid = func;
-  a = funcDynToVoid(new A());
-  //  ^^^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.USE_OF_VOID_RESULT
-  //               ^
-  // [cfe] This expression has type 'void' and can't be used.
-  b = funcDynToVoid(new B());
-  //  ^^^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.USE_OF_VOID_RESULT
-  //               ^
-  // [cfe] This expression has type 'void' and can't be used.
-  c = funcDynToVoid(new C());
-  //  ^^^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.USE_OF_VOID_RESULT
-  //               ^
-  // [cfe] This expression has type 'void' and can't be used.
-
-  if (funcDynToVoid is FuncDynToDyn) {
-    // Promotion: FuncDynToDyn <:> FuncDynToVoid.
-    a = funcDynToVoid(new A());
-    b = funcDynToVoid(new B());
-    c = funcDynToVoid(new C());
-  }
-
-  if (funcDynToVoid is FuncDynToA) {
-    // Promotion: FuncDynToA <: FuncDynToVoid.
-    a = funcDynToVoid(new A());
-    b = funcDynToVoid(new B());
-    c = funcDynToVoid(new C());
-    //  ^^^^^^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-    //               ^
-    // [cfe] A value of type 'A' can't be assigned to a variable of type 'C'.
-  }
-}
-
-testFuncDynToA() {
-  FuncDynToA funcDynToA = func;
-  a = funcDynToA(new A());
-  b = funcDynToA(new B());
-  c = funcDynToA(new C());
-  //  ^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //            ^
-  // [cfe] A value of type 'A' can't be assigned to a variable of type 'C'.
-
-  if (funcDynToA is FuncDynToDyn) {
-    // No promotion: FuncDynToDyn <\: FuncDynToA.
-    a = funcDynToA(new A());
-    b = funcDynToA(new B());
-    c = funcDynToA(new C());
-    //  ^^^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-    //            ^
-    // [cfe] A value of type 'A' can't be assigned to a variable of type 'C'.
-  }
-
-  if (funcDynToA is FuncDynToVoid) {
-    // No promotion: FuncDynToVoid <\: FuncDynToA.
-    a = funcDynToA(new A());
-    b = funcDynToA(new B());
-    c = funcDynToA(new C());
-    //  ^^^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-    //            ^
-    // [cfe] A value of type 'A' can't be assigned to a variable of type 'C'.
-  }
-}
diff --git a/tests/language_2/type_promotion/local_runtime_test.dart b/tests/language_2/type_promotion/local_runtime_test.dart
deleted file mode 100644
index 58900909383..00000000000
--- a/tests/language_2/type_promotion/local_runtime_test.dart
+++ /dev/null
@@ -1,165 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test type promotion of locals.
-
-class A {
-  var a = "a";
-}
-
-class B extends A {
-  var b = "b";
-}
-
-class C extends B {
-  var c = "c";
-}
-
-class D extends A {
-  var d = "d";
-}
-
-class E implements C, D {
-  var a = "";
-  var b = "";
-  var c = "";
-  var d = "";
-}
-
-void main() {
-  A a = new E();
-  print(a.a);
-
-
-
-
-  if (a is B) {
-    print(a.a);
-    print(a.b);
-
-
-
-    if (a is C) {
-      print(a.a);
-      print(a.b);
-      print(a.c);
-
-    }
-
-    print(a.a);
-    print(a.b);
-
-
-  }
-  if (a is C) {
-    print(a.a);
-    print(a.b);
-    print(a.c);
-
-
-    if (a is B) {
-      print(a.a);
-      print(a.b);
-      print(a.c);
-
-    }
-    if (a is D) {
-      print(a.a);
-      print(a.b);
-      print(a.c);
-
-    }
-
-    print(a.a);
-    print(a.b);
-    print(a.c);
-
-  }
-
-  print(a.a);
-
-
-
-
-  if (a is D) {
-    print(a.a);
-
-
-    print(a.d);
-  }
-
-  print(a.a);
-
-
-
-
-  var o1 = a is B
-          ? '${a.a}'
-              '${a.b}'
-
-
-          : '${a.a}'
-
-
-
-      ;
-
-  var o2 = a is C
-          ? '${a.a}'
-              '${a.b}'
-              '${a.c}'
-
-          : '${a.a}'
-
-
-
-      ;
-
-  var o3 = a is D
-          ? '${a.a}'
-
-
-              '${a.d}'
-          : '${a.a}'
-
-
-
-      ;
-
-  if (a is B && a is B) {
-    print(a.a);
-    print(a.b);
-
-
-  }
-  if (a is B && a is C) {
-    print(a.a);
-    print(a.b);
-    print(a.c);
-
-  }
-  if (a is C && a is B) {
-    print(a.a);
-    print(a.b);
-    print(a.c);
-
-  }
-  if (a is C && a is D) {
-    print(a.a);
-    print(a.b);
-    print(a.c);
-
-  }
-  if (a is D && a is C) {
-    print(a.a);
-
-
-    print(a.d);
-  }
-}
diff --git a/tests/language_2/type_promotion/local_test.dart b/tests/language_2/type_promotion/local_test.dart
deleted file mode 100644
index 9ce1e4a8696..00000000000
--- a/tests/language_2/type_promotion/local_test.dart
+++ /dev/null
@@ -1,285 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test type promotion of locals.
-
-class A {
-  var a = "a";
-}
-
-class B extends A {
-  var b = "b";
-}
-
-class C extends B {
-  var c = "c";
-}
-
-class D extends A {
-  var d = "d";
-}
-
-class E implements C, D {
-  var a = "";
-  var b = "";
-  var c = "";
-  var d = "";
-}
-
-void main() {
-  A a = new E();
-  print(a.a);
-  print(a.b);
-  //      ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'b' isn't defined for the class 'A'.
-  print(a.c);
-  //      ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'c' isn't defined for the class 'A'.
-  print(a.d);
-  //      ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'd' isn't defined for the class 'A'.
-
-  if (a is B) {
-    print(a.a);
-    print(a.b);
-    print(a.c);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'c' isn't defined for the class 'B'.
-    print(a.d);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'd' isn't defined for the class 'B'.
-
-    if (a is C) {
-      print(a.a);
-      print(a.b);
-      print(a.c);
-      print(a.d);
-      //      ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'd' isn't defined for the class 'C'.
-    }
-
-    print(a.a);
-    print(a.b);
-    print(a.c);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'c' isn't defined for the class 'B'.
-    print(a.d);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'd' isn't defined for the class 'B'.
-  }
-  if (a is C) {
-    print(a.a);
-    print(a.b);
-    print(a.c);
-    print(a.d);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'd' isn't defined for the class 'C'.
-
-    if (a is B) {
-      print(a.a);
-      print(a.b);
-      print(a.c);
-      print(a.d);
-      //      ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'd' isn't defined for the class 'C'.
-    }
-    if (a is D) {
-      print(a.a);
-      print(a.b);
-      print(a.c);
-      print(a.d);
-      //      ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'd' isn't defined for the class 'C'.
-    }
-
-    print(a.a);
-    print(a.b);
-    print(a.c);
-    print(a.d);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'd' isn't defined for the class 'C'.
-  }
-
-  print(a.a);
-  print(a.b);
-  //      ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'b' isn't defined for the class 'A'.
-  print(a.c);
-  //      ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'c' isn't defined for the class 'A'.
-  print(a.d);
-  //      ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'd' isn't defined for the class 'A'.
-
-  if (a is D) {
-    print(a.a);
-    print(a.b);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'b' isn't defined for the class 'D'.
-    print(a.c);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'c' isn't defined for the class 'D'.
-    print(a.d);
-  }
-
-  print(a.a);
-  print(a.b);
-  //      ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'b' isn't defined for the class 'A'.
-  print(a.c);
-  //      ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'c' isn't defined for the class 'A'.
-  print(a.d);
-  //      ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'd' isn't defined for the class 'A'.
-
-  var o1 = a is B
-          ? '${a.a}'
-              '${a.b}'
-      '${a.c}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'c' isn't defined for the class 'B'.
-      '${a.d}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'd' isn't defined for the class 'B'.
-          : '${a.a}'
-      '${a.b}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'b' isn't defined for the class 'A'.
-      '${a.c}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'c' isn't defined for the class 'A'.
-      '${a.d}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'd' isn't defined for the class 'A'.
-      ;
-
-  var o2 = a is C
-          ? '${a.a}'
-              '${a.b}'
-              '${a.c}'
-      '${a.d}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'd' isn't defined for the class 'C'.
-          : '${a.a}'
-      '${a.b}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'b' isn't defined for the class 'A'.
-      '${a.c}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'c' isn't defined for the class 'A'.
-      '${a.d}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'd' isn't defined for the class 'A'.
-      ;
-
-  var o3 = a is D
-          ? '${a.a}'
-      '${a.b}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'b' isn't defined for the class 'D'.
-      '${a.c}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'c' isn't defined for the class 'D'.
-              '${a.d}'
-          : '${a.a}'
-      '${a.b}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'b' isn't defined for the class 'A'.
-      '${a.c}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'c' isn't defined for the class 'A'.
-      '${a.d}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'd' isn't defined for the class 'A'.
-      ;
-
-  if (a is B && a is B) {
-    print(a.a);
-    print(a.b);
-    print(a.c);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'c' isn't defined for the class 'B'.
-    print(a.d);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'd' isn't defined for the class 'B'.
-  }
-  if (a is B && a is C) {
-    print(a.a);
-    print(a.b);
-    print(a.c);
-    print(a.d);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'd' isn't defined for the class 'C'.
-  }
-  if (a is C && a is B) {
-    print(a.a);
-    print(a.b);
-    print(a.c);
-    print(a.d);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'd' isn't defined for the class 'C'.
-  }
-  if (a is C && a is D) {
-    print(a.a);
-    print(a.b);
-    print(a.c);
-    print(a.d);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'd' isn't defined for the class 'C'.
-  }
-  if (a is D && a is C) {
-    print(a.a);
-    print(a.b);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'b' isn't defined for the class 'D'.
-    print(a.c);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'c' isn't defined for the class 'D'.
-    print(a.d);
-  }
-}
diff --git a/tests/language_2/type_promotion/logical_and_runtime_test.dart b/tests/language_2/type_promotion/logical_and_runtime_test.dart
deleted file mode 100644
index 11a6f0a2b8a..00000000000
--- a/tests/language_2/type_promotion/logical_and_runtime_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test type promotion of locals potentially mutated.
-
-class A {
-  var a = true;
-}
-
-class B extends A {
-  var b = true;
-}
-
-class C extends B {
-  var c = true;
-}
-
-class D extends A {
-  var d = true;
-}
-
-class E implements C, D {
-  var a = true;
-  var b = true;
-  var c = true;
-  var d = true;
-}
-
-void main() {
-  A a = new E();
-  var b;
-  if (a is D && ((a = new D()) != null)) {
-
-  }
-  if (a is D && (b = a.d)) {
-
-    a = null;
-  }
-  if ((((a) is D) && (b = (a).d))) {
-
-    a = null;
-  }
-  if (f(a = null) && a is D) {
-    b = a.d;
-  }
-}
-
-bool f(x) => true;
diff --git a/tests/language_2/type_promotion/logical_and_test.dart b/tests/language_2/type_promotion/logical_and_test.dart
deleted file mode 100644
index 76d63935b28..00000000000
--- a/tests/language_2/type_promotion/logical_and_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test type promotion of locals potentially mutated.
-
-class A {
-  var a = true;
-}
-
-class B extends A {
-  var b = true;
-}
-
-class C extends B {
-  var c = true;
-}
-
-class D extends A {
-  var d = true;
-}
-
-class E implements C, D {
-  var a = true;
-  var b = true;
-  var c = true;
-  var d = true;
-}
-
-void main() {
-  A a = new E();
-  var b;
-  if (a is D && ((a = new D()) != null)) {
-    b = a.d;
-    //    ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'd' isn't defined for the class 'A'.
-  }
-  if (a is D && (b = a.d)) {
-    b = a.d;
-    //    ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'd' isn't defined for the class 'A'.
-    a = null;
-  }
-  if ((((a) is D) && (b = (a).d))) {
-    b = a.d;
-    //    ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'd' isn't defined for the class 'A'.
-    a = null;
-  }
-  if (f(a = null) && a is D) {
-    b = a.d;
-  }
-}
-
-bool f(x) => true;
diff --git a/tests/language_2/type_promotion/more_specific_runtime_1_test.dart b/tests/language_2/type_promotion/more_specific_runtime_1_test.dart
deleted file mode 100644
index 17465207caf..00000000000
--- a/tests/language_2/type_promotion/more_specific_runtime_1_test.dart
+++ /dev/null
@@ -1,95 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test use of more specific in type promotion of interface types.
-
-class A {
-  var a;
-}
-
-class B extends A {
-  var b;
-}
-
-class C {
-  var c;
-}
-
-class D<T> {
-  T d;
-
-  D(this.d);
-}
-
-class E<T> extends D<T> {
-  T e;
-
-  E(e)
-      : this.e = e,
-        super(e);
-}
-
-void main() {
-  testInterface();
-  testGeneric();
-}
-
-void testInterface() {
-  var x;
-  var y;
-
-  A a = new B();
-  if (a is B) {
-    // Promotion B << A.
-    x = a.b;
-  }
-  if (a is C) {
-    // No promotion C !<< A.
-
-  }
-  B b = new B();
-  if (b is A) {
-    // No promotion B !<< A.
-
-  }
-  if (x is A) {
-    // Promotion A << dynamic.
-
-  }
-}
-
-testGeneric() {
-  var x;
-  var y;
-
-  D d1 = new E<B>(null);
-  if (d1 is E) {
-    // Promotion: E << D.
-
-  }
-  if (d1 is E<A>) {
-    // Promotion: E<A> << D.
-
-
-
-  }
-
-  D<A> d2 = new E<B>(null);
-  if (d2 is E) {
-    // No promotion: E !<< D<A>
-
-  }
-
-  D<A> d3 = new E<B>(new B());
-  if (d3 is E<B>) {
-    // Promotion: E<B> << D<A>
-
-
-  }
-}
diff --git a/tests/language_2/type_promotion/more_specific_runtime_2_test.dart b/tests/language_2/type_promotion/more_specific_runtime_2_test.dart
deleted file mode 100644
index fdfa6807fcb..00000000000
--- a/tests/language_2/type_promotion/more_specific_runtime_2_test.dart
+++ /dev/null
@@ -1,95 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test use of more specific in type promotion of interface types.
-
-class A {
-  var a;
-}
-
-class B extends A {
-  var b;
-}
-
-class C {
-  var c;
-}
-
-class D<T> {
-  T d;
-
-  D(this.d);
-}
-
-class E<T> extends D<T> {
-  T e;
-
-  E(e)
-      : this.e = e,
-        super(e);
-}
-
-void main() {
-  testInterface();
-  testGeneric();
-}
-
-void testInterface() {
-  var x;
-  var y;
-
-  A a = new B();
-  if (a is B) {
-    // Promotion B << A.
-
-  }
-  if (a is C) {
-    // No promotion C !<< A.
-
-  }
-  B b = new B();
-  if (b is A) {
-    // No promotion B !<< A.
-    x = b.b;
-  }
-  if (x is A) {
-    // Promotion A << dynamic.
-
-  }
-}
-
-testGeneric() {
-  var x;
-  var y;
-
-  D d1 = new E<B>(null);
-  if (d1 is E) {
-    // Promotion: E << D.
-
-  }
-  if (d1 is E<A>) {
-    // Promotion: E<A> << D.
-
-
-
-  }
-
-  D<A> d2 = new E<B>(null);
-  if (d2 is E) {
-    // No promotion: E !<< D<A>
-
-  }
-
-  D<A> d3 = new E<B>(new B());
-  if (d3 is E<B>) {
-    // Promotion: E<B> << D<A>
-
-
-  }
-}
diff --git a/tests/language_2/type_promotion/more_specific_runtime_3_test.dart b/tests/language_2/type_promotion/more_specific_runtime_3_test.dart
deleted file mode 100644
index 87fdb4da9ca..00000000000
--- a/tests/language_2/type_promotion/more_specific_runtime_3_test.dart
+++ /dev/null
@@ -1,95 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test use of more specific in type promotion of interface types.
-
-class A {
-  var a;
-}
-
-class B extends A {
-  var b;
-}
-
-class C {
-  var c;
-}
-
-class D<T> {
-  T d;
-
-  D(this.d);
-}
-
-class E<T> extends D<T> {
-  T e;
-
-  E(e)
-      : this.e = e,
-        super(e);
-}
-
-void main() {
-  testInterface();
-  testGeneric();
-}
-
-void testInterface() {
-  var x;
-  var y;
-
-  A a = new B();
-  if (a is B) {
-    // Promotion B << A.
-
-  }
-  if (a is C) {
-    // No promotion C !<< A.
-
-  }
-  B b = new B();
-  if (b is A) {
-    // No promotion B !<< A.
-
-  }
-  if (x is A) {
-    // Promotion A << dynamic.
-
-  }
-}
-
-testGeneric() {
-  var x;
-  var y;
-
-  D d1 = new E<B>(null);
-  if (d1 is E) {
-    // Promotion: E << D.
-    x = d1.e;
-  }
-  if (d1 is E<A>) {
-    // Promotion: E<A> << D.
-
-
-
-  }
-
-  D<A> d2 = new E<B>(null);
-  if (d2 is E) {
-    // No promotion: E !<< D<A>
-
-  }
-
-  D<A> d3 = new E<B>(new B());
-  if (d3 is E<B>) {
-    // Promotion: E<B> << D<A>
-
-
-  }
-}
diff --git a/tests/language_2/type_promotion/more_specific_runtime_4_test.dart b/tests/language_2/type_promotion/more_specific_runtime_4_test.dart
deleted file mode 100644
index 757510c4bcd..00000000000
--- a/tests/language_2/type_promotion/more_specific_runtime_4_test.dart
+++ /dev/null
@@ -1,95 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test use of more specific in type promotion of interface types.
-
-class A {
-  var a;
-}
-
-class B extends A {
-  var b;
-}
-
-class C {
-  var c;
-}
-
-class D<T> {
-  T d;
-
-  D(this.d);
-}
-
-class E<T> extends D<T> {
-  T e;
-
-  E(e)
-      : this.e = e,
-        super(e);
-}
-
-void main() {
-  testInterface();
-  testGeneric();
-}
-
-void testInterface() {
-  var x;
-  var y;
-
-  A a = new B();
-  if (a is B) {
-    // Promotion B << A.
-
-  }
-  if (a is C) {
-    // No promotion C !<< A.
-
-  }
-  B b = new B();
-  if (b is A) {
-    // No promotion B !<< A.
-
-  }
-  if (x is A) {
-    // Promotion A << dynamic.
-
-  }
-}
-
-testGeneric() {
-  var x;
-  var y;
-
-  D d1 = new E<B>(null);
-  if (d1 is E) {
-    // Promotion: E << D.
-
-  }
-  if (d1 is E<A>) {
-    // Promotion: E<A> << D.
-
-
-    x = d1.e;
-  }
-
-  D<A> d2 = new E<B>(null);
-  if (d2 is E) {
-    // No promotion: E !<< D<A>
-
-  }
-
-  D<A> d3 = new E<B>(new B());
-  if (d3 is E<B>) {
-    // Promotion: E<B> << D<A>
-
-
-  }
-}
diff --git a/tests/language_2/type_promotion/more_specific_runtime_5_test.dart b/tests/language_2/type_promotion/more_specific_runtime_5_test.dart
deleted file mode 100644
index bc22838fe2f..00000000000
--- a/tests/language_2/type_promotion/more_specific_runtime_5_test.dart
+++ /dev/null
@@ -1,95 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test use of more specific in type promotion of interface types.
-
-class A {
-  var a;
-}
-
-class B extends A {
-  var b;
-}
-
-class C {
-  var c;
-}
-
-class D<T> {
-  T d;
-
-  D(this.d);
-}
-
-class E<T> extends D<T> {
-  T e;
-
-  E(e)
-      : this.e = e,
-        super(e);
-}
-
-void main() {
-  testInterface();
-  testGeneric();
-}
-
-void testInterface() {
-  var x;
-  var y;
-
-  A a = new B();
-  if (a is B) {
-    // Promotion B << A.
-
-  }
-  if (a is C) {
-    // No promotion C !<< A.
-
-  }
-  B b = new B();
-  if (b is A) {
-    // No promotion B !<< A.
-
-  }
-  if (x is A) {
-    // Promotion A << dynamic.
-
-  }
-}
-
-testGeneric() {
-  var x;
-  var y;
-
-  D d1 = new E<B>(null);
-  if (d1 is E) {
-    // Promotion: E << D.
-
-  }
-  if (d1 is E<A>) {
-    // Promotion: E<A> << D.
-
-
-
-  }
-
-  D<A> d2 = new E<B>(null);
-  if (d2 is E) {
-    // No promotion: E !<< D<A>
-
-  }
-
-  D<A> d3 = new E<B>(new B());
-  if (d3 is E<B>) {
-    // Promotion: E<B> << D<A>
-    x = d3.d.b;
-
-  }
-}
diff --git a/tests/language_2/type_promotion/more_specific_runtime_6_test.dart b/tests/language_2/type_promotion/more_specific_runtime_6_test.dart
deleted file mode 100644
index e7a79915689..00000000000
--- a/tests/language_2/type_promotion/more_specific_runtime_6_test.dart
+++ /dev/null
@@ -1,95 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test use of more specific in type promotion of interface types.
-
-class A {
-  var a;
-}
-
-class B extends A {
-  var b;
-}
-
-class C {
-  var c;
-}
-
-class D<T> {
-  T d;
-
-  D(this.d);
-}
-
-class E<T> extends D<T> {
-  T e;
-
-  E(e)
-      : this.e = e,
-        super(e);
-}
-
-void main() {
-  testInterface();
-  testGeneric();
-}
-
-void testInterface() {
-  var x;
-  var y;
-
-  A a = new B();
-  if (a is B) {
-    // Promotion B << A.
-
-  }
-  if (a is C) {
-    // No promotion C !<< A.
-
-  }
-  B b = new B();
-  if (b is A) {
-    // No promotion B !<< A.
-
-  }
-  if (x is A) {
-    // Promotion A << dynamic.
-
-  }
-}
-
-testGeneric() {
-  var x;
-  var y;
-
-  D d1 = new E<B>(null);
-  if (d1 is E) {
-    // Promotion: E << D.
-
-  }
-  if (d1 is E<A>) {
-    // Promotion: E<A> << D.
-
-
-
-  }
-
-  D<A> d2 = new E<B>(null);
-  if (d2 is E) {
-    // No promotion: E !<< D<A>
-
-  }
-
-  D<A> d3 = new E<B>(new B());
-  if (d3 is E<B>) {
-    // Promotion: E<B> << D<A>
-
-    x = d3.e.b;
-  }
-}
diff --git a/tests/language_2/type_promotion/more_specific_runtime_test.dart b/tests/language_2/type_promotion/more_specific_runtime_test.dart
deleted file mode 100644
index 523c95542b7..00000000000
--- a/tests/language_2/type_promotion/more_specific_runtime_test.dart
+++ /dev/null
@@ -1,95 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test use of more specific in type promotion of interface types.
-
-class A {
-  var a;
-}
-
-class B extends A {
-  var b;
-}
-
-class C {
-  var c;
-}
-
-class D<T> {
-  T d;
-
-  D(this.d);
-}
-
-class E<T> extends D<T> {
-  T e;
-
-  E(e)
-      : this.e = e,
-        super(e);
-}
-
-void main() {
-  testInterface();
-  testGeneric();
-}
-
-void testInterface() {
-  var x;
-  var y;
-
-  A a = new B();
-  if (a is B) {
-    // Promotion B << A.
-
-  }
-  if (a is C) {
-    // No promotion C !<< A.
-
-  }
-  B b = new B();
-  if (b is A) {
-    // No promotion B !<< A.
-
-  }
-  if (x is A) {
-    // Promotion A << dynamic.
-
-  }
-}
-
-testGeneric() {
-  var x;
-  var y;
-
-  D d1 = new E<B>(null);
-  if (d1 is E) {
-    // Promotion: E << D.
-
-  }
-  if (d1 is E<A>) {
-    // Promotion: E<A> << D.
-
-
-
-  }
-
-  D<A> d2 = new E<B>(null);
-  if (d2 is E) {
-    // No promotion: E !<< D<A>
-
-  }
-
-  D<A> d3 = new E<B>(new B());
-  if (d3 is E<B>) {
-    // Promotion: E<B> << D<A>
-
-
-  }
-}
diff --git a/tests/language_2/type_promotion/more_specific_test.dart b/tests/language_2/type_promotion/more_specific_test.dart
deleted file mode 100644
index 69b17308c21..00000000000
--- a/tests/language_2/type_promotion/more_specific_test.dart
+++ /dev/null
@@ -1,109 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test use of more specific in type promotion of interface types.
-
-class A {
-  var a;
-}
-
-class B extends A {
-  var b;
-}
-
-class C {
-  var c;
-}
-
-class D<T> {
-  T d;
-
-  D(this.d);
-}
-
-class E<T> extends D<T> {
-  T e;
-
-  E(e)
-      : this.e = e,
-        super(e);
-}
-
-void main() {
-  testInterface();
-  testGeneric();
-}
-
-void testInterface() {
-  var x;
-  var y;
-
-  A a = new B();
-  if (a is B) {
-    // Promotion B << A.
-    x = a.b;
-  }
-  if (a is C) {
-    // No promotion C !<< A.
-    x = a.c;
-    //    ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'c' isn't defined for the class 'A'.
-  }
-  B b = new B();
-  if (b is A) {
-    // No promotion B !<< A.
-    x = b.b;
-  }
-  if (x is A) {
-    // Promotion A << dynamic.
-    y = x.b;
-    //    ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'b' isn't defined for the class 'A'.
-  }
-}
-
-testGeneric() {
-  var x;
-  var y;
-
-  D d1 = new E<B>(null);
-  if (d1 is E) {
-    // Promotion: E << D.
-    x = d1.e;
-  }
-  if (d1 is E<A>) {
-    // Promotion: E<A> << D.
-    int a = d1.d;
-    //      ^^^^
-    // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-    //         ^
-    // [cfe] A value of type 'A' can't be assigned to a variable of type 'int'.
-    String b = d1.d;
-    //         ^^^^
-    // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-    //            ^
-    // [cfe] A value of type 'A' can't be assigned to a variable of type 'String'.
-    x = d1.e;
-  }
-
-  D<A> d2 = new E<B>(null);
-  if (d2 is E) {
-    // No promotion: E !<< D<A>
-    x = d2.e;
-    //     ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'e' isn't defined for the class 'D<A>'.
-  }
-
-  D<A> d3 = new E<B>(new B());
-  if (d3 is E<B>) {
-    // Promotion: E<B> << D<A>
-    x = d3.d.b;
-    x = d3.e.b;
-  }
-}
diff --git a/tests/language_2/type_promotion/multiple_runtime_test.dart b/tests/language_2/type_promotion/multiple_runtime_test.dart
deleted file mode 100644
index b14251f1941..00000000000
--- a/tests/language_2/type_promotion/multiple_runtime_test.dart
+++ /dev/null
@@ -1,105 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test type promotion of locals.
-
-class A {
-  var a = "a";
-}
-
-class B extends A {
-  var b = "b";
-}
-
-class C extends B {
-  var c = "c";
-}
-
-class D extends A {
-  var d = "d";
-}
-
-class E implements C, D {
-  var a = "";
-  var b = "";
-  var c = "";
-  var d = "";
-}
-
-void main() {
-  test(new E());
-}
-
-void test(A a1) {
-  A a2 = new E();
-  print(a1.a);
-
-
-
-
-  print(a2.a);
-
-
-
-
-  if (a1 is B && a2 is C) {
-    print(a1.a);
-    print(a1.b);
-
-
-
-    print(a2.a);
-    print(a2.b);
-    print(a2.c);
-
-
-    if (a1 is C && a2 is D) {
-      print(a1.a);
-      print(a1.b);
-      print(a1.c);
-
-
-      print(a2.a);
-      print(a2.b);
-      print(a2.c);
-
-    }
-  }
-
-  var o1 = a1 is B && a2 is C
-          ? '${a1.a}'
-              '${a1.b}'
-
-
-              '${a2.a}'
-              '${a2.b}'
-              '${a2.c}'
-
-          : '${a1.a}'
-
-
-
-          '${a2.a}'
-
-
-
-      ;
-
-  if (a2 is C && a1 is B && a1 is C && a2 is B && a2 is D) {
-    print(a1.a);
-    print(a1.b);
-    print(a1.c);
-
-
-    print(a2.a);
-    print(a2.b);
-    print(a2.c);
-
-  }
-}
diff --git a/tests/language_2/type_promotion/multiple_test.dart b/tests/language_2/type_promotion/multiple_test.dart
deleted file mode 100644
index de8607c9c27..00000000000
--- a/tests/language_2/type_promotion/multiple_test.dart
+++ /dev/null
@@ -1,168 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test type promotion of locals.
-
-class A {
-  var a = "a";
-}
-
-class B extends A {
-  var b = "b";
-}
-
-class C extends B {
-  var c = "c";
-}
-
-class D extends A {
-  var d = "d";
-}
-
-class E implements C, D {
-  var a = "";
-  var b = "";
-  var c = "";
-  var d = "";
-}
-
-void main() {
-  test(new E());
-}
-
-void test(A a1) {
-  A a2 = new E();
-  print(a1.a);
-  print(a1.b);
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'b' isn't defined for the class 'A'.
-  print(a1.c);
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'c' isn't defined for the class 'A'.
-  print(a1.d);
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'd' isn't defined for the class 'A'.
-
-  print(a2.a);
-  print(a2.b);
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'b' isn't defined for the class 'A'.
-  print(a2.c);
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'c' isn't defined for the class 'A'.
-  print(a2.d);
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'd' isn't defined for the class 'A'.
-
-  if (a1 is B && a2 is C) {
-    print(a1.a);
-    print(a1.b);
-    print(a1.c);
-    //       ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'c' isn't defined for the class 'B'.
-    print(a1.d);
-    //       ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'd' isn't defined for the class 'B'.
-
-    print(a2.a);
-    print(a2.b);
-    print(a2.c);
-    print(a2.d);
-    //       ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'd' isn't defined for the class 'C'.
-
-    if (a1 is C && a2 is D) {
-      print(a1.a);
-      print(a1.b);
-      print(a1.c);
-      print(a1.d);
-      //       ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'd' isn't defined for the class 'C'.
-
-      print(a2.a);
-      print(a2.b);
-      print(a2.c);
-      print(a2.d);
-      //       ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'd' isn't defined for the class 'C'.
-    }
-  }
-
-  var o1 = a1 is B && a2 is C
-          ? '${a1.a}'
-              '${a1.b}'
-      '${a1.c}'
-      //    ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'c' isn't defined for the class 'B'.
-      '${a1.d}'
-      //    ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'd' isn't defined for the class 'B'.
-              '${a2.a}'
-              '${a2.b}'
-              '${a2.c}'
-      '${a2.d}'
-      //    ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'd' isn't defined for the class 'C'.
-          : '${a1.a}'
-      '${a1.b}'
-      //    ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'b' isn't defined for the class 'A'.
-      '${a1.c}'
-      //    ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'c' isn't defined for the class 'A'.
-      '${a1.d}'
-      //    ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'd' isn't defined for the class 'A'.
-          '${a2.a}'
-      '${a2.b}'
-      //    ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'b' isn't defined for the class 'A'.
-      '${a2.c}'
-      //    ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'c' isn't defined for the class 'A'.
-      '${a2.d}'
-      //    ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'd' isn't defined for the class 'A'.
-      ;
-
-  if (a2 is C && a1 is B && a1 is C && a2 is B && a2 is D) {
-    print(a1.a);
-    print(a1.b);
-    print(a1.c);
-    print(a1.d);
-    //       ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'd' isn't defined for the class 'C'.
-
-    print(a2.a);
-    print(a2.b);
-    print(a2.c);
-    print(a2.d);
-    //       ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'd' isn't defined for the class 'C'.
-  }
-}
diff --git a/tests/language_2/type_promotion/parameter_runtime_test.dart b/tests/language_2/type_promotion/parameter_runtime_test.dart
deleted file mode 100644
index bbfdb298a36..00000000000
--- a/tests/language_2/type_promotion/parameter_runtime_test.dart
+++ /dev/null
@@ -1,213 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test type promotion of parameters.
-
-class A {
-  var a = "a";
-}
-
-class B extends A {
-  var b = "b";
-}
-
-class C extends B {
-  var c = "c";
-}
-
-class D extends A {
-  var d = "d";
-}
-
-class E implements C, D {
-  var a = "";
-  var b = "";
-  var c = "";
-  var d = "";
-}
-
-void main() {
-  test(new E());
-}
-
-void test(A a) {
-  print(a.a);
-
-
-
-
-  if (a is B) {
-    print(a.a);
-    print(a.b);
-
-
-
-    if (a is C) {
-      print(a.a);
-      print(a.b);
-      print(a.c);
-
-    }
-
-    print(a.a);
-    print(a.b);
-
-
-  }
-  if (a is C) {
-    print(a.a);
-    print(a.b);
-    print(a.c);
-
-
-    if (a is B) {
-      print(a.a);
-      print(a.b);
-      print(a.c);
-
-    }
-    if (a is D) {
-      print(a.a);
-      print(a.b);
-      print(a.c);
-
-    }
-
-    print(a.a);
-    print(a.b);
-    print(a.c);
-
-  }
-
-  print(a.a);
-
-
-
-
-  if (a is D) {
-    print(a.a);
-
-
-    print(a.d);
-  }
-
-  print(a.a);
-
-
-
-
-  var o1 = a is B
-          ? '${a.a}'
-              '${a.b}'
-
-
-          : '${a.a}'
-
-
-
-      ;
-
-  var o2 = a is C
-          ? '${a.a}'
-              '${a.b}'
-              '${a.c}'
-
-          : '${a.a}'
-
-
-
-      ;
-
-  var o3 = a is D
-          ? '${a.a}'
-
-
-              '${a.d}'
-          : '${a.a}'
-
-
-
-      ;
-
-  if (a is B && a is B) {
-    print(a.a);
-    print(a.b);
-
-
-  }
-  if (a is B && a is C) {
-    print(a.a);
-    print(a.b);
-    print(a.c);
-
-  }
-  if (a is C && a is B) {
-    print(a.a);
-    print(a.b);
-    print(a.c);
-
-  }
-  if (a is C && a is D) {
-    print(a.a);
-    print(a.b);
-    print(a.c);
-
-  }
-  if (a is D && a is C) {
-    print(a.a);
-
-
-    print(a.d);
-  }
-  if (a is D &&
-      a.a == ""
-
-
-      &&
-      a.d == "") {
-    print(a.a);
-
-
-    print(a.d);
-  }
-  if (a.a == ""
-
-
-
-          &&
-          a is B &&
-          a.a == "" &&
-          a.b == ""
-
-
-          &&
-          a is C &&
-          a.a == "" &&
-          a.b == "" &&
-          a.c == ""
-
-      ) {
-    print(a.a);
-    print(a.b);
-    print(a.c);
-
-  }
-  if ((a is B)) {
-    print(a.a);
-    print(a.b);
-
-
-  }
-  if ((a is B && (a) is C) && a is B) {
-    print(a.a);
-    print(a.b);
-    print(a.c);
-
-  }
-}
diff --git a/tests/language_2/type_promotion/parameter_test.dart b/tests/language_2/type_promotion/parameter_test.dart
deleted file mode 100644
index ccde9665880..00000000000
--- a/tests/language_2/type_promotion/parameter_test.dart
+++ /dev/null
@@ -1,375 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test type promotion of parameters.
-
-class A {
-  var a = "a";
-}
-
-class B extends A {
-  var b = "b";
-}
-
-class C extends B {
-  var c = "c";
-}
-
-class D extends A {
-  var d = "d";
-}
-
-class E implements C, D {
-  var a = "";
-  var b = "";
-  var c = "";
-  var d = "";
-}
-
-void main() {
-  test(new E());
-}
-
-void test(A a) {
-  print(a.a);
-  print(a.b);
-  //      ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'b' isn't defined for the class 'A'.
-  print(a.c);
-  //      ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'c' isn't defined for the class 'A'.
-  print(a.d);
-  //      ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'd' isn't defined for the class 'A'.
-
-  if (a is B) {
-    print(a.a);
-    print(a.b);
-    print(a.c);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'c' isn't defined for the class 'B'.
-    print(a.d);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'd' isn't defined for the class 'B'.
-
-    if (a is C) {
-      print(a.a);
-      print(a.b);
-      print(a.c);
-      print(a.d);
-      //      ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'd' isn't defined for the class 'C'.
-    }
-
-    print(a.a);
-    print(a.b);
-    print(a.c);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'c' isn't defined for the class 'B'.
-    print(a.d);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'd' isn't defined for the class 'B'.
-  }
-  if (a is C) {
-    print(a.a);
-    print(a.b);
-    print(a.c);
-    print(a.d);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'd' isn't defined for the class 'C'.
-
-    if (a is B) {
-      print(a.a);
-      print(a.b);
-      print(a.c);
-      print(a.d);
-      //      ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'd' isn't defined for the class 'C'.
-    }
-    if (a is D) {
-      print(a.a);
-      print(a.b);
-      print(a.c);
-      print(a.d);
-      //      ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'd' isn't defined for the class 'C'.
-    }
-
-    print(a.a);
-    print(a.b);
-    print(a.c);
-    print(a.d);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'd' isn't defined for the class 'C'.
-  }
-
-  print(a.a);
-  print(a.b);
-  //      ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'b' isn't defined for the class 'A'.
-  print(a.c);
-  //      ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'c' isn't defined for the class 'A'.
-  print(a.d);
-  //      ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'd' isn't defined for the class 'A'.
-
-  if (a is D) {
-    print(a.a);
-    print(a.b);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'b' isn't defined for the class 'D'.
-    print(a.c);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'c' isn't defined for the class 'D'.
-    print(a.d);
-  }
-
-  print(a.a);
-  print(a.b);
-  //      ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'b' isn't defined for the class 'A'.
-  print(a.c);
-  //      ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'c' isn't defined for the class 'A'.
-  print(a.d);
-  //      ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'd' isn't defined for the class 'A'.
-
-  var o1 = a is B
-          ? '${a.a}'
-              '${a.b}'
-      '${a.c}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'c' isn't defined for the class 'B'.
-      '${a.d}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'd' isn't defined for the class 'B'.
-          : '${a.a}'
-      '${a.b}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'b' isn't defined for the class 'A'.
-      '${a.c}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'c' isn't defined for the class 'A'.
-      '${a.d}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'd' isn't defined for the class 'A'.
-      ;
-
-  var o2 = a is C
-          ? '${a.a}'
-              '${a.b}'
-              '${a.c}'
-      '${a.d}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'd' isn't defined for the class 'C'.
-          : '${a.a}'
-      '${a.b}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'b' isn't defined for the class 'A'.
-      '${a.c}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'c' isn't defined for the class 'A'.
-      '${a.d}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'd' isn't defined for the class 'A'.
-      ;
-
-  var o3 = a is D
-          ? '${a.a}'
-      '${a.b}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'b' isn't defined for the class 'D'.
-      '${a.c}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'c' isn't defined for the class 'D'.
-              '${a.d}'
-          : '${a.a}'
-      '${a.b}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'b' isn't defined for the class 'A'.
-      '${a.c}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'c' isn't defined for the class 'A'.
-      '${a.d}'
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'd' isn't defined for the class 'A'.
-      ;
-
-  if (a is B && a is B) {
-    print(a.a);
-    print(a.b);
-    print(a.c);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'c' isn't defined for the class 'B'.
-    print(a.d);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'd' isn't defined for the class 'B'.
-  }
-  if (a is B && a is C) {
-    print(a.a);
-    print(a.b);
-    print(a.c);
-    print(a.d);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'd' isn't defined for the class 'C'.
-  }
-  if (a is C && a is B) {
-    print(a.a);
-    print(a.b);
-    print(a.c);
-    print(a.d);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'd' isn't defined for the class 'C'.
-  }
-  if (a is C && a is D) {
-    print(a.a);
-    print(a.b);
-    print(a.c);
-    print(a.d);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'd' isn't defined for the class 'C'.
-  }
-  if (a is D && a is C) {
-    print(a.a);
-    print(a.b);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'b' isn't defined for the class 'D'.
-    print(a.c);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'c' isn't defined for the class 'D'.
-    print(a.d);
-  }
-  if (a is D &&
-      a.a == ""
-      && a.b == ""
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'b' isn't defined for the class 'D'.
-      && a.c == ""
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'c' isn't defined for the class 'D'.
-      &&
-      a.d == "") {
-    print(a.a);
-    print(a.b);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'b' isn't defined for the class 'D'.
-    print(a.c);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'c' isn't defined for the class 'D'.
-    print(a.d);
-  }
-  if (a.a == ""
-      && a.b == ""
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'b' isn't defined for the class 'A'.
-      && a.c == ""
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'c' isn't defined for the class 'A'.
-      && a.d == ""
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'd' isn't defined for the class 'A'.
-          &&
-          a is B &&
-          a.a == "" &&
-          a.b == ""
-      && a.c == ""
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'c' isn't defined for the class 'B'.
-      && a.d == ""
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'd' isn't defined for the class 'B'.
-          &&
-          a is C &&
-          a.a == "" &&
-          a.b == "" &&
-          a.c == ""
-      && a.d == ""
-      //   ^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-      // [cfe] The getter 'd' isn't defined for the class 'C'.
-      ) {
-    print(a.a);
-    print(a.b);
-    print(a.c);
-    print(a.d);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'd' isn't defined for the class 'C'.
-  }
-  if ((a is B)) {
-    print(a.a);
-    print(a.b);
-    print(a.c);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'c' isn't defined for the class 'B'.
-    print(a.d);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'd' isn't defined for the class 'B'.
-  }
-  if ((a is B && (a) is C) && a is B) {
-    print(a.a);
-    print(a.b);
-    print(a.c);
-    print(a.d);
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-    // [cfe] The getter 'd' isn't defined for the class 'C'.
-  }
-}
diff --git a/tests/language_2/type_variable/bound_access_runtime_test.dart b/tests/language_2/type_variable/bound_access_runtime_test.dart
deleted file mode 100644
index cda73892edd..00000000000
--- a/tests/language_2/type_variable/bound_access_runtime_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class DynamicClass<T extends dynamic, S extends T> {
-  T field1;
-  T field2;
-
-  DynamicClass(this.field1, this.field2);
-
-  method() => field1 * field2;
-}
-
-class NumClass<T extends num, S extends T> {
-  T field1;
-  S field2;
-
-  NumClass(this.field1, this.field2);
-
-  num method1() => field1 * field2;
-
-
-}
-
-main() {
-  new DynamicClass<num, int>(0.5, 2).method();
-  new NumClass<num, double>(2, 0.5).method1();
-
-}
diff --git a/tests/language_2/type_variable/bound_access_test.dart b/tests/language_2/type_variable/bound_access_test.dart
deleted file mode 100644
index 5737b7c2b89..00000000000
--- a/tests/language_2/type_variable/bound_access_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class DynamicClass<T extends dynamic, S extends T> {
-  T field1;
-  T field2;
-
-  DynamicClass(this.field1, this.field2);
-
-  method() => field1 * field2;
-}
-
-class NumClass<T extends num, S extends T> {
-  T field1;
-  S field2;
-
-  NumClass(this.field1, this.field2);
-
-  num method1() => field1 * field2;
-
-  num method2() => field1 + field2.length;
-  //                               ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'length' isn't defined for the class 'num'.
-}
-
-main() {
-  new DynamicClass<num, int>(0.5, 2).method();
-  new NumClass<num, double>(2, 0.5).method1();
-  new NumClass<num, double>(2, 0.5).method2();
-}
diff --git a/tests/language_2/type_variable/bounds2_test.dart b/tests/language_2/type_variable/bounds2_test.dart
deleted file mode 100644
index c1e7805dcfd..00000000000
--- a/tests/language_2/type_variable/bounds2_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test of parameterized types with invalid bounds.
-
-abstract class J<T> {}
-
-abstract class I<T extends num> {}
-
-class A<T> implements I<T>, J<T> {}
-//                    ^
-// [cfe] Type argument 'T' doesn't conform to the bound 'num' of the type variable 'T' on 'I'.
-//                      ^
-// [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-
-main() {
-  // We are only interested in the instance creation, hence
-  // the result is assigned to `dynamic`.
-  dynamic a = new A<String>();
-}
diff --git a/tests/language_2/type_variable/bounds3_runtime_test.dart b/tests/language_2/type_variable/bounds3_runtime_test.dart
deleted file mode 100644
index 93211de9054..00000000000
--- a/tests/language_2/type_variable/bounds3_runtime_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test of parameterized types with invalid bounds.
-
-class A<K extends int> {}
-
-class B<X, Y> {
-  foo(x) {
-
-  }
-}
-
-main() {
-  var b = new B<double, double>();
-  b.foo(new A());
-}
diff --git a/tests/language_2/type_variable/bounds3_test.dart b/tests/language_2/type_variable/bounds3_test.dart
deleted file mode 100644
index 7246ac71ed8..00000000000
--- a/tests/language_2/type_variable/bounds3_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test of parameterized types with invalid bounds.
-
-class A<K extends int> {}
-
-class B<X, Y> {
-  foo(x) {
-    return x is A<X>;
-    //          ^
-    // [cfe] Type argument 'X' doesn't conform to the bound 'int' of the type variable 'K' on 'A'.
-    //            ^
-    // [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-  }
-}
-
-main() {
-  var b = new B<double, double>();
-  b.foo(new A());
-}
diff --git a/tests/language_2/type_variable/bounds4_runtime_test.dart b/tests/language_2/type_variable/bounds4_runtime_test.dart
deleted file mode 100644
index de363f9d439..00000000000
--- a/tests/language_2/type_variable/bounds4_runtime_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test instantiation of object with malbounded types.
-
-class A<
-    T
-
-    > {}
-
-class B<T> implements A<T> {}
-
-class C<
-    T
-
-    > implements B<T> {}
-
-class Class<T> {
-  newA() {
-    new A<T>();
-  }
-  newB() {
-    new B<T>();
-  }
-  newC() {
-    new C<T>();
-  }
-}
-
-void test(f()) {
-  var v = f();
-}
-
-void main() {
-  test(() => new A<int>());
-  // TODO(eernst): Should it be a compile-time error to create an instance
-  // of this class in #01?
-  test(() => new B<int>());
-  test(() => new C<int>());
-
-  test(() => new A<String>());
-  test(() => new B<String>());
-  test(() => new C<String>());
-
-  dynamic c = new Class<int>();
-  test(() => c.newA());
-  test(() => c.newB());
-  test(() => c.newC());
-
-  c = new Class<String>();
-  test(() => c.newA());
-  test(() => c.newB());
-  test(() => c.newC());
-}
diff --git a/tests/language_2/type_variable/bounds4_test.dart b/tests/language_2/type_variable/bounds4_test.dart
deleted file mode 100644
index 9fa6558abd4..00000000000
--- a/tests/language_2/type_variable/bounds4_test.dart
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test instantiation of object with malbounded types.
-
-class A<
-    T
-          extends num
-    > {}
-
-class B<T> implements A<T> {}
-//                    ^
-// [cfe] Type argument 'T' doesn't conform to the bound 'num' of the type variable 'T' on 'A'.
-//                      ^
-// [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-
-class C<
-    T
-          extends num
-    > implements B<T> {}
-
-class Class<T> {
-  newA() {
-    new A<T>();
-    //  ^
-    // [cfe] Type argument 'T' doesn't conform to the bound 'num' of the type variable 'T' on 'A'.
-    //    ^
-    // [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-  }
-  newB() {
-    new B<T>();
-  }
-  newC() {
-    new C<T>();
-    //  ^
-    // [cfe] Type argument 'T' doesn't conform to the bound 'num' of the type variable 'T' on 'C'.
-    //    ^
-    // [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-  }
-}
-
-void test(f()) {
-  var v = f();
-}
-
-void main() {
-  test(() => new A<int>());
-  // TODO(eernst): Should it be a compile-time error to create an instance
-  // of this class in #01?
-  test(() => new B<int>());
-  test(() => new C<int>());
-
-  test(() => new A<String>());
-  //             ^
-  // [cfe] Type argument 'String' doesn't conform to the bound 'num' of the type variable 'T' on 'A'.
-  //               ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-  test(() => new B<String>());
-  test(() => new C<String>());
-  //             ^
-  // [cfe] Type argument 'String' doesn't conform to the bound 'num' of the type variable 'T' on 'C'.
-  //               ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-
-  dynamic c = new Class<int>();
-  test(() => c.newA());
-  test(() => c.newB());
-  test(() => c.newC());
-
-  c = new Class<String>();
-  test(() => c.newA());
-  test(() => c.newB());
-  test(() => c.newC());
-}
diff --git a/tests/language_2/type_variable/bounds_test.dart b/tests/language_2/type_variable/bounds_test.dart
deleted file mode 100644
index 05f8c0b3d9f..00000000000
--- a/tests/language_2/type_variable/bounds_test.dart
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test of parameterized factory methods.
-
-class Foo<T extends num> {
-  Foo();
-
-  factory Foo.bad() = XFoo; // //# 00: compile-time error
-
-  factory Foo.good() = Foo<T>;
-
-  factory Foo.IFoo() {
-    return null;
-  }
-}
-
-abstract class IFoo<T extends num> {
-  factory IFoo() = Foo<T>; //# 11: compile-time error
-}
-
-// String is not a subtype of num.
-class Baz
-    extends Foo<String> //# 01: compile-time error
-{}
-
-class Biz extends Foo<int> {}
-
-Foo<int> fi;
-
-// String is not a subtype of num.
-Foo
-    <String> //# 02: compile-time error
-    fs;
-
-class Box<T> {
-  // Box.T is not guaranteed to be a subtype of num.
-  Foo<T> t; //# 03: compile-time error
-
-  makeFoo() {
-    // Box.T is not guaranteed to be a subtype of num.
-    return new Foo<T>(); //# 04: compile-time error
-  }
-}
-
-main() {
-  // String is not a subtype of num.
-  var v1 = new Foo<String>(); //# 05: compile-time error
-
-  // String is not a subtype of num.
-  Foo<String> v2 = null; //# 06: compile-time error
-
-  new Baz();
-  new Biz();
-
-  fi = new Foo();
-  fs = new Foo();
-
-  new Box().makeFoo();
-  new Box<int>().makeFoo();
-  new Box<String>().makeFoo();
-
-  // Fisk does not exist.
-  new Box<Fisk>(); //# 07: compile-time error
-
-  // Too many type arguments.
-  new Box<Object, Object>(); //# 08: compile-time error
-
-  // Fisk does not exist.
-  Box<Fisk> box = null; //# 09: compile-time error
-
-  // Too many type arguments.
-  Box<Object, Object> box = null; //# 10: compile-time error
-}
diff --git a/tests/language_2/type_variable/closure2_test.dart b/tests/language_2/type_variable/closure2_test.dart
deleted file mode 100644
index f674acd89a7..00000000000
--- a/tests/language_2/type_variable/closure2_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A<T> {}
-
-class C<T> {
-  a() {
-    return () => new A<T>();
-  }
-
-  list() {
-    return () => <T>[];
-  }
-
-  map() {
-    return () => <T, T>{};
-  }
-}
-
-main() {
-  Expect.isTrue(new C<int>().a()() is A<int>);
-  Expect.isFalse(new C<int>().a()() is A<String>);
-  Expect.isTrue(new C<int>().list()() is List<int>);
-  Expect.isFalse(new C<int>().list()() is List<String>);
-  Expect.isTrue(new C<int>().map()() is Map<int, int>);
-  Expect.isFalse(new C<int>().map()() is Map<String, int>);
-  Expect.isFalse(new C<int>().map()() is Map<int, String>);
-}
diff --git a/tests/language_2/type_variable/closure3_test.dart b/tests/language_2/type_variable/closure3_test.dart
deleted file mode 100644
index 1b961349dc0..00000000000
--- a/tests/language_2/type_variable/closure3_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A<T> {}
-
-class C<T> {
-  a() {
-    return () => new A<T>();
-  }
-}
-
-main() {
-  Expect.isTrue(new C<int>().a()() is A<int>);
-  Expect.isFalse(new C<int>().a()() is A<String>);
-}
diff --git a/tests/language_2/type_variable/closure4_test.dart b/tests/language_2/type_variable/closure4_test.dart
deleted file mode 100644
index 902c26b3207..00000000000
--- a/tests/language_2/type_variable/closure4_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A<T> {}
-
-class C<T> {
-  map() {
-    return () => <T, T>{};
-  }
-}
-
-main() {
-  Expect.isTrue(new C<int>().map()() is Map<int, int>);
-  Expect.isFalse(new C<int>().map()() is Map<String, int>);
-  Expect.isFalse(new C<int>().map()() is Map<int, String>);
-}
diff --git a/tests/language_2/type_variable/closure_test.dart b/tests/language_2/type_variable/closure_test.dart
deleted file mode 100644
index e1f0e999249..00000000000
--- a/tests/language_2/type_variable/closure_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C<T> {
-  C.foo() {
-    x = (a) => a is T;
-  }
-  C.bar() {
-    x = (a) => a is! T;
-  }
-  C.baz() {
-    x = (a) => a as T;
-  }
-  var x;
-}
-
-main() {
-  Expect.isTrue(new C<int>.foo().x(1));
-  Expect.isFalse(new C<int>.foo().x('1'));
-  Expect.isFalse(new C<int>.bar().x(1));
-  Expect.isTrue(new C<int>.bar().x('1'));
-  Expect.equals(new C<int>.baz().x(1), 1);
-  Expect.throws(() => new C<int>.baz().x('1'));
-}
diff --git a/tests/language_2/type_variable/conflict2_runtime_test.dart b/tests/language_2/type_variable/conflict2_runtime_test.dart
deleted file mode 100644
index ff0180d5daf..00000000000
--- a/tests/language_2/type_variable/conflict2_runtime_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Regression test for issue 13134. Invocation of a type parameter.
-
-import "package:expect/expect.dart";
-
-class C<T> {
-  noSuchMethod(Invocation im) {
-    throw "noSuchMethod shouldn't be called in this test.";
-  }
-
-  // This is equivalent to (T).call(). See issue 19725
-
-
-  // T is in scope, even in static context. Compile-time error to call this.T().
-
-
-  // X is not in scope. NoSuchMethodError.
-
-
-  // Class 'C' has no static method 'T': NoSuchMethodError.
-
-
-  // Class '_Type' has no instance method 'call': NoSuchMethodError.
-
-
-  // Runtime type T not accessible from static context. Compile-time error.
-
-
-  // Class '_Type' has no [] operator: NoSuchMethodError.
-
-
-  // Runtime type T not accessible from static context. Compile-time error.
-
-
-  // Class '_Type' has no member m: NoSuchMethodError.
-
-
-  // Runtime type T not accessible from static context. Compile-time error.
-
-}
-
-main() {
-
-
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/type_variable/conflict2_test.dart b/tests/language_2/type_variable/conflict2_test.dart
deleted file mode 100644
index 40abfb9c8e9..00000000000
--- a/tests/language_2/type_variable/conflict2_test.dart
+++ /dev/null
@@ -1,100 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 13134. Invocation of a type parameter.
-
-import "package:expect/expect.dart";
-
-class C<T> {
-  noSuchMethod(Invocation im) {
-    throw "noSuchMethod shouldn't be called in this test.";
-  }
-
-  // This is equivalent to (T).call(). See issue 19725
-  foo() => T();
-  //       ^
-  // [analyzer] COMPILE_TIME_ERROR.INVOCATION_OF_NON_FUNCTION
-  // [cfe] Couldn't find constructor 'T'.
-
-  // T is in scope, even in static context. Compile-time error to call this.T().
-  static bar() => T();
-  //              ^
-  // [analyzer] COMPILE_TIME_ERROR.INVOCATION_OF_NON_FUNCTION
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_PARAMETER_REFERENCED_BY_STATIC
-  // [cfe] Couldn't find constructor 'T'.
-
-  // X is not in scope. NoSuchMethodError.
-  static baz() => X();
-  //              ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_METHOD
-  // [cfe] Method not found: 'X'.
-
-  // Class 'C' has no static method 'T': NoSuchMethodError.
-  static qux() => C.T();
-  //                ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_METHOD
-  // [cfe] Member not found: 'C.T'.
-
-  // Class '_Type' has no instance method 'call': NoSuchMethodError.
-  quux() => (T)();
-  //        ^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVOCATION_OF_NON_FUNCTION_EXPRESSION
-  //           ^
-  // [cfe] The method 'call' isn't defined for the class 'Type'.
-
-  // Runtime type T not accessible from static context. Compile-time error.
-  static corge() => (T)();
-  //                ^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVOCATION_OF_NON_FUNCTION_EXPRESSION
-  //                 ^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_PARAMETER_REFERENCED_BY_STATIC
-  // [cfe] Type variables can't be used in static members.
-  //                   ^
-  // [cfe] The method 'call' isn't defined for the class 'Type'.
-
-  // Class '_Type' has no [] operator: NoSuchMethodError.
-  grault() => T[0];
-  //           ^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '[]' isn't defined for the class 'Type'.
-
-  // Runtime type T not accessible from static context. Compile-time error.
-  static garply() => T[0];
-  //                 ^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_PARAMETER_REFERENCED_BY_STATIC
-  // [cfe] Type variables can't be used in static members.
-  //                  ^^^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_OPERATOR
-  // [cfe] The operator '[]' isn't defined for the class 'Type'.
-
-  // Class '_Type' has no member m: NoSuchMethodError.
-  waldo() => T.m;
-  //           ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'm' isn't defined for the class 'Type'.
-
-  // Runtime type T not accessible from static context. Compile-time error.
-  static fred() => T.m;
-  //               ^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_PARAMETER_REFERENCED_BY_STATIC
-  // [cfe] Type variables can't be used in static members.
-  //                 ^
-  // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-  // [cfe] The getter 'm' isn't defined for the class 'Type'.
-}
-
-main() {
-  Expect.throwsNoSuchMethodError(() => new C().foo());
-  C.bar();
-  Expect.throwsNoSuchMethodError(() => C.baz());
-  Expect.throwsNoSuchMethodError(() => C.qux());
-  Expect.throwsNoSuchMethodError(() => new C().quux());
-  C.corge();
-  Expect.throwsNoSuchMethodError(() => new C().grault());
-  C.garply();
-  Expect.throwsNoSuchMethodError(() => new C().waldo());
-  C.fred();
-}
diff --git a/tests/language_2/type_variable/conflict_runtime_test.dart b/tests/language_2/type_variable/conflict_runtime_test.dart
deleted file mode 100644
index 26cf7779eb4..00000000000
--- a/tests/language_2/type_variable/conflict_runtime_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that we report a compile-time error when a type parameter conflicts
-// with an instance or static member with the same name.
-
-import "package:expect/expect.dart";
-
-class G1<T> {
-
-}
-
-class G2<T> {
-
-}
-
-class G3<T> {
-
-}
-
-class G4<T> {
-
-}
-
-class G5<T> {
-
-}
-
-class G6<T> {
-
-}
-
-class G7<T> {
-
-}
-
-class G8<T> {
-
-}
-
-main() {
-  new G1<int>();
-  new G2<int>();
-  new G3<int>();
-  new G4<int>();
-  new G5<int>();
-  new G6<int>();
-  new G7<int>();
-  new G8<int>();
-}
diff --git a/tests/language_2/type_variable/conflict_test.dart b/tests/language_2/type_variable/conflict_test.dart
deleted file mode 100644
index 6a7f0ab1b95..00000000000
--- a/tests/language_2/type_variable/conflict_test.dart
+++ /dev/null
@@ -1,85 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that we report a compile-time error when a type parameter conflicts
-// with an instance or static member with the same name.
-
-import "package:expect/expect.dart";
-
-class G1<T> {
-//       ^
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_TYPE_VARIABLE_AND_MEMBER
-  var T;
-  //  ^
-  // [cfe] Conflicts with type variable 'T'.
-}
-
-class G2<T> {
-//       ^
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_TYPE_VARIABLE_AND_MEMBER
-  get T {}
-  //  ^
-  // [cfe] Conflicts with type variable 'T'.
-}
-
-class G3<T> {
-//       ^
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_TYPE_VARIABLE_AND_MEMBER
-  T() {}
-//^
-// [cfe] Conflicts with type variable 'T'.
-}
-
-class G4<T> {
-//       ^
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_TYPE_VARIABLE_AND_MEMBER
-  static var T;
-  //         ^
-  // [cfe] Conflicts with type variable 'T'.
-}
-
-class G5<T> {
-//       ^
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_TYPE_VARIABLE_AND_MEMBER
-  static get T {}
-  //         ^
-  // [cfe] Conflicts with type variable 'T'.
-}
-
-class G6<T> {
-//       ^
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_TYPE_VARIABLE_AND_MEMBER
-  static T() {}
-  //     ^
-  // [cfe] Conflicts with type variable 'T'.
-}
-
-class G7<T> {
-//       ^
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_TYPE_VARIABLE_AND_MEMBER
-  set T(_) {}
-  //  ^
-  // [cfe] Conflicts with type variable 'T'.
-}
-
-class G8<T> {
-//       ^
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_TYPE_VARIABLE_AND_MEMBER
-  static set T(x) {}
-  //         ^
-  // [cfe] Conflicts with type variable 'T'.
-}
-
-main() {
-  new G1<int>();
-  new G2<int>();
-  new G3<int>();
-  new G4<int>();
-  new G5<int>();
-  new G6<int>();
-  new G7<int>();
-  new G8<int>();
-}
diff --git a/tests/language_2/type_variable/field_initializer2_test.dart b/tests/language_2/type_variable/field_initializer2_test.dart
deleted file mode 100644
index 3aad18e18e6..00000000000
--- a/tests/language_2/type_variable/field_initializer2_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that an inlined field initializer has access to the enclosing
-// type variables.
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  var c = new X<T>();
-}
-
-class B<T> extends A<T> {}
-
-class X<T> {}
-
-main() {
-  Expect.isTrue(new B<int>().c is X<int>);
-  Expect.isFalse(new B<String>().c is X<int>);
-}
diff --git a/tests/language_2/type_variable/field_initializer_closure2_test.dart b/tests/language_2/type_variable/field_initializer_closure2_test.dart
deleted file mode 100644
index d78d73c2b92..00000000000
--- a/tests/language_2/type_variable/field_initializer_closure2_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that an inlined field closure has access to the enclosing
-// type variables.
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  var c = (() => new X<T>())();
-}
-
-class B<T> extends A<T> {}
-
-class X<T> {}
-
-main() {
-  Expect.isTrue(new B<int>().c is X<int>);
-  Expect.isFalse(new B<String>().c is X<int>);
-}
diff --git a/tests/language_2/type_variable/field_initializer_closure_test.dart b/tests/language_2/type_variable/field_initializer_closure_test.dart
deleted file mode 100644
index c0f1b01f8a5..00000000000
--- a/tests/language_2/type_variable/field_initializer_closure_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that an inlined field closure has access to the enclosing
-// type variables.
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  var c = (() => <T>[])();
-}
-
-class B<T> extends A<T> {}
-
-main() {
-  Expect.isTrue(new B<int>().c is List<int>);
-  Expect.isFalse(new B<String>().c is List<int>);
-}
diff --git a/tests/language_2/type_variable/field_initializer_test.dart b/tests/language_2/type_variable/field_initializer_test.dart
deleted file mode 100644
index 06d03088ae1..00000000000
--- a/tests/language_2/type_variable/field_initializer_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that an inlined field initializer has access to the enclosing
-// type variables.
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  var c = <T>[];
-}
-
-class B<T> extends A<T> {}
-
-main() {
-  Expect.isTrue(new B<int>().c is List<int>);
-  Expect.isFalse(new B<String>().c is List<int>);
-}
diff --git a/tests/language_2/type_variable/function_type_test.dart b/tests/language_2/type_variable/function_type_test.dart
deleted file mode 100644
index 789cc1f4f10..00000000000
--- a/tests/language_2/type_variable/function_type_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-typedef T Func<T>();
-
-class Foo<S> {
-  m(x) => x is Func<S>;
-}
-
-class Bar<T> {
-  f() {
-    T local() {}
-    return local;
-  }
-}
-
-void main() {
-  dynamic x = new Foo<List<String>>();
-  if (new DateTime.now().millisecondsSinceEpoch == 42) x = new Foo<int>();
-  Expect.isFalse(x.m(new Bar<String>().f()));
-  Expect.isTrue(x.m(new Bar<List<String>>().f()));
-}
diff --git a/tests/language_2/type_variable/identifier_expression_test.dart b/tests/language_2/type_variable/identifier_expression_test.dart
deleted file mode 100644
index db821c834dc..00000000000
--- a/tests/language_2/type_variable/identifier_expression_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--enable_type_checks
-
-// @dart = 2.9
-
-class A {
-  static func() {
-    return "class A";
-  }
-}
-
-class B<T> {
-  doFunc() {
-    T.func();
-    //^^^^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_METHOD
-    // [cfe] The method 'func' isn't defined for the class 'Type'.
-  }
-}
-
-main() {
-  new B<A>().doFunc();
-}
diff --git a/tests/language_2/type_variable/initializer_test.dart b/tests/language_2/type_variable/initializer_test.dart
deleted file mode 100644
index 1645114f835..00000000000
--- a/tests/language_2/type_variable/initializer_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Regression test for dart2js where the reference to [:this:] in a
-// constructor was not propagated to the super initializers.
-
-class A<T> {
-  var map;
-  // Usage of type variables in the initializer makes the SSA builder
-  // want to access [:this:]. And because the initializers of A are
-  // inlined in the constructor of B, we have to make sure the
-  // [:this:] in the A constructor has a corresponding
-  // SSA instruction.
-  A() : map = new Map<T, T>();
-}
-
-class B<T> extends A<T> {}
-
-main() {
-  Expect.isTrue(new B<int>().map is Map<int, int>);
-}
diff --git a/tests/language_2/type_variable/nested_test.dart b/tests/language_2/type_variable/nested_test.dart
deleted file mode 100644
index 36453e3837d..00000000000
--- a/tests/language_2/type_variable/nested_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for
-// http://code.google.com/p/dart/issues/detail?id=9050.
-
-import 'package:expect/expect.dart';
-
-class A<T> {}
-
-class B<T> {
-  var _copy;
-  B() {
-    // We used to not register the dependency between List and B.
-    _copy = <A<T>>[];
-  }
-}
-
-main() {
-  var a = new B();
-  Expect.isFalse(a._copy is List<int>);
-  Expect.isTrue(a._copy is List<A>);
-  Expect.isFalse(a._copy is List<A<int>>); //# 01: ok
-
-  a = new B<String>();
-  Expect.isFalse(a._copy is List<String>);
-  Expect.isTrue(a._copy is List<A>);
-  Expect.isTrue(a._copy is List<A<String>>);
-  Expect.isTrue(a._copy is List<A<Object>>);
-  Expect.isFalse(a._copy is List<A<int>>);
-}
diff --git a/tests/language_2/type_variable/promotion_issue39752_test.dart b/tests/language_2/type_variable/promotion_issue39752_test.dart
deleted file mode 100644
index 16a9390f26e..00000000000
--- a/tests/language_2/type_variable/promotion_issue39752_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {}
-
-void f<T>(T a) {
-  if (a is num) {
-    if (a is int) {
-      a.isEven;
-    }
-  }
-}
diff --git a/tests/language_2/type_variable/promotion_test.dart b/tests/language_2/type_variable/promotion_test.dart
deleted file mode 100644
index 0bf731964d7..00000000000
--- a/tests/language_2/type_variable/promotion_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class A {}
-
-class B extends A {}
-
-class Foo<T extends A> {
-  String foo(T x) {
-    if (x is B) {
-      var list = [x];
-      return list.runtimeType.toString();
-    }
-    return '';
-  }
-
-  List<T> bar(T x) {
-    var tlist = <T>[];
-    if (x is B) {
-      var list = [x];
-      tlist = list;
-    }
-    return tlist;
-  }
-}
-
-main() {
-  var foo = new Foo<B>();
-  var b = new B();
-
-  // List class has many different platform specific implementations
-  // so we can't rely on the fact that all of them have the same
-  // user visible name. Instead we build a name for List<B> from List<A>.
-  final expected = (<A>[]).runtimeType.toString().replaceAll('<$A>', '<$B>');
-  Expect.equals(expected, foo.foo(b));
-  Expect.listEquals([b], foo.bar(b));
-}
diff --git a/tests/language_2/type_variable/scope2_test.dart b/tests/language_2/type_variable/scope2_test.dart
deleted file mode 100644
index dd7cade611f..00000000000
--- a/tests/language_2/type_variable/scope2_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that malformed type arguments are treated as an error.
-
-class Foo<T> {
-  // T is not in scope for a static method.
-  static Foo<T> m() {
-  //         ^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_PARAMETER_REFERENCED_BY_STATIC
-  // [cfe] Type variables can't be used in static members.
-    return new Foo();
-  }
-}
-
-main() {}
diff --git a/tests/language_2/type_variable/scope3_runtime_test.dart b/tests/language_2/type_variable/scope3_runtime_test.dart
deleted file mode 100644
index 49dbcea3e24..00000000000
--- a/tests/language_2/type_variable/scope3_runtime_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that a type parameter cannot be repeated.
-
-class Foo<
-    T
-
-    > {}
-
-main() {
-  new Foo<
-      String
-
-      >();
-}
diff --git a/tests/language_2/type_variable/scope3_test.dart b/tests/language_2/type_variable/scope3_test.dart
deleted file mode 100644
index 4463a6bf92c..00000000000
--- a/tests/language_2/type_variable/scope3_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that a type parameter cannot be repeated.
-
-class Foo<
-    T
-    , T
-    //^
-    // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-    // [cfe] A type variable can't have the same name as another.
-    > {}
-
-main() {
-  new Foo<
-      String
-      , String
-      >();
-}
diff --git a/tests/language_2/type_variable/scope_runtime_test.dart b/tests/language_2/type_variable/scope_runtime_test.dart
deleted file mode 100644
index 69ca8c5738f..00000000000
--- a/tests/language_2/type_variable/scope_runtime_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that type variables referenced from within static members are malformed.
-
-class Foo<T> implements I<T> {
-  Foo() {}
-
-  static
-
-      m(
-
-          f) {
-
-    return new Foo<String>();
-  }
-
-  // T is in scope for a factory method.
-  factory Foo.I(Foo<T> f) {
-    Foo<T> x = f;
-  }
-
-  // T is not in scope for a static field.
-
-
-  static
-
-      get f {
-    return new Foo<String>();
-  }
-
-  static void set f(
-
-      value) {}
-}
-
-abstract class I<T> {
-  factory I(Foo<T> f) = Foo<T>.I;
-}
-
-main() {
-  Foo.m(new Foo<String>());
-  new I(new Foo<String>());
-
-  var x = Foo.f;
-  Foo.f = x;
-}
diff --git a/tests/language_2/type_variable/scope_test.dart b/tests/language_2/type_variable/scope_test.dart
deleted file mode 100644
index cc5775effc6..00000000000
--- a/tests/language_2/type_variable/scope_test.dart
+++ /dev/null
@@ -1,86 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that type variables referenced from within static members are malformed.
-
-class Foo<T> implements I<T> {
-  Foo() {}
-
-  static
-  Foo<T>
-  //  ^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_PARAMETER_REFERENCED_BY_STATIC
-      m(
-//    ^
-// [cfe] Can only use type variables in instance methods.
-    Foo<T>
-    //  ^
-    // [analyzer] COMPILE_TIME_ERROR.TYPE_PARAMETER_REFERENCED_BY_STATIC
-    // [cfe] Type variables can't be used in static members.
-          f) {
-    Foo<T> x = new Foo<String>();
-    //  ^
-    // [analyzer] COMPILE_TIME_ERROR.TYPE_PARAMETER_REFERENCED_BY_STATIC
-    // [cfe] Type variables can't be used in static members.
-    //         ^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-    return new Foo<String>();
-    //     ^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  }
-
-  // T is in scope for a factory method.
-  factory Foo.I(Foo<T> f) {
-    Foo<T> x = f;
-  }
-
-  // T is not in scope for a static field.
-  static Foo<T> f1;
-  //         ^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_PARAMETER_REFERENCED_BY_STATIC
-  // [cfe] Type variables can't be used in static members.
-  //            ^
-  // [cfe] Verification of the generated program failed:
-
-  static
-  Foo<T>
-  //  ^
-  // [analyzer] COMPILE_TIME_ERROR.TYPE_PARAMETER_REFERENCED_BY_STATIC
-      get f {
-      //  ^
-      // [cfe] Can only use type variables in instance methods.
-    return new Foo<String>();
-    //     ^^^^^^^^^^^^^^^^^
-    // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  }
-
-  static void set f(
-  //              ^
-  // [cfe] Can only use type variables in instance methods.
-                    Foo<T>
-                    //  ^
-                    // [analyzer] COMPILE_TIME_ERROR.TYPE_PARAMETER_REFERENCED_BY_STATIC
-                    // [cfe] Type variables can't be used in static members.
-      value) {}
-}
-
-abstract class I<T> {
-  factory I(Foo<T> f) = Foo<T>.I;
-}
-
-main() {
-  Foo.m(new Foo<String>());
-  //    ^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  new I(new Foo<String>());
-  Foo.f1 = new Foo<String>();
-  //       ^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  //           ^
-  // [cfe] A value of type 'Foo<String>' can't be assigned to a variable of type 'Foo<T>'.
-  var x = Foo.f;
-  Foo.f = x;
-}
diff --git a/tests/language_2/type_variable/static_context_test.dart b/tests/language_2/type_variable/static_context_test.dart
deleted file mode 100644
index f579e8b33d0..00000000000
--- a/tests/language_2/type_variable/static_context_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// A type variable can't be referenced in a static class
-
-class A<T> {
-  static int method() {
-    // error, can't reference a type variable in a static context
-    var foo = new T();
-    //            ^
-    // [analyzer] COMPILE_TIME_ERROR.CREATION_WITH_NON_TYPE
-    // [analyzer] COMPILE_TIME_ERROR.TYPE_PARAMETER_REFERENCED_BY_STATIC
-    // [cfe] Couldn't find constructor 'T'.
-  }
-}
-
-main() {
-  A.method();
-}
diff --git a/tests/language_2/type_variable/typedef_test.dart b/tests/language_2/type_variable/typedef_test.dart
deleted file mode 100644
index 41cd1cf3e50..00000000000
--- a/tests/language_2/type_variable/typedef_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that rti dependency registration takes type variables within typedefs
-// into account.
-
-import 'package:expect/expect.dart';
-
-typedef Foo<T>(T t);
-
-class A<T> {
-  m() => new B<Foo<T>>();
-}
-
-class B<T> {
-  m(o) => o is T;
-}
-
-foo(int i) {}
-bar(String s) {}
-
-void main() {
-  Expect.isTrue(new A<int>().m().m(foo));
-  Expect.isFalse(new A<int>().m().m(bar));
-  Expect.isFalse(new A<String>().m().m(foo));
-  Expect.isTrue(new A<String>().m().m(bar));
-  Expect.isFalse(new A<double>().m().m(foo));
-  Expect.isFalse(new A<double>().m().m(bar));
-}
diff --git a/tests/language_2/typedef/bad_typedef_runtime_test.dart b/tests/language_2/typedef/bad_typedef_runtime_test.dart
deleted file mode 100644
index a1b69df8ef6..00000000000
--- a/tests/language_2/typedef/bad_typedef_runtime_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for a function type test that cannot be eliminated at compile time.
-
-import "package:expect/expect.dart";
-
-typedef int H(
-    Function
-
-        x);
-
-main() {
-  bool b = true;
-  Expect.isFalse(b is H);
-}
diff --git a/tests/language_2/typedef/bad_typedef_test.dart b/tests/language_2/typedef/bad_typedef_test.dart
deleted file mode 100644
index 808c3e925ce..00000000000
--- a/tests/language_2/typedef/bad_typedef_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for a function type test that cannot be eliminated at compile time.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-typedef int H(
-    Function
-    Function
-        x);
-//      ^
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-// [cfe] Expected ')' before this.
-
-main() {
-  bool b = true;
-  Expect.isFalse(b is H);
-}
diff --git a/tests/language_2/typedef/check_bounds_generic_test.dart b/tests/language_2/typedef/check_bounds_generic_test.dart
deleted file mode 100644
index 7cab6acf693..00000000000
--- a/tests/language_2/typedef/check_bounds_generic_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that typedef type parameters are verified to satisfy their bounds.
-
-typedef F<T extends num> = T Function<U>(T x);
-
-void g(F<String> f) {}
-//     ^
-// [cfe] Type argument 'String' doesn't conform to the bound 'num' of the type variable 'T' on 'F'.
-//       ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-
-main() {
-  g(null);
-}
diff --git a/tests/language_2/typedef/check_bounds_test.dart b/tests/language_2/typedef/check_bounds_test.dart
deleted file mode 100644
index 5fba1eb9a19..00000000000
--- a/tests/language_2/typedef/check_bounds_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that typedef type parameters are verified to satisfy their bounds.
-
-typedef T F<T extends num>(T x);
-
-void g(F<String> f) {}
-//     ^
-// [cfe] Type argument 'String' doesn't conform to the bound 'num' of the type variable 'T' on 'F'.
-//       ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-
-main() {
-  g(null);
-}
diff --git a/tests/language_2/typedef/check_bounds_unused_test.dart b/tests/language_2/typedef/check_bounds_unused_test.dart
deleted file mode 100644
index 53ac761ab6a..00000000000
--- a/tests/language_2/typedef/check_bounds_unused_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that typedef type parameters are verified to satisfy their bounds, even
-// if the type parameter in question isn't used by the typedef.
-
-typedef void F<T extends num>();
-
-void g(F<String> f) {}
-//     ^
-// [cfe] Type argument 'String' doesn't conform to the bound 'num' of the type variable 'T' on 'F'.
-//       ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS
-
-main() {
-  g(null);
-}
diff --git a/tests/language_2/typedef/class_in_other_file_helper.dart b/tests/language_2/typedef/class_in_other_file_helper.dart
deleted file mode 100644
index ec04b88eef8..00000000000
--- a/tests/language_2/typedef/class_in_other_file_helper.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Bar {}
diff --git a/tests/language_2/typedef/class_in_other_file_test.dart b/tests/language_2/typedef/class_in_other_file_test.dart
deleted file mode 100644
index 6cc14464799..00000000000
--- a/tests/language_2/typedef/class_in_other_file_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This has crashed DDC with Kernel because of a
-// "Concurrent modification during iteration" exception.
-
-import 'class_in_other_file_helper.dart';
-
-typedef bool Foo1(bool baz);
-typedef bool Foo2(Bar baz);
-
-main() {}
diff --git a/tests/language_2/typedef/cyclic_test.dart b/tests/language_2/typedef/cyclic_test.dart
deleted file mode 100644
index ecfef2a9d23..00000000000
--- a/tests/language_2/typedef/cyclic_test.dart
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that cyclic reference of a typedef is a compile-time error.
-
-// To test various cyclic references the definition of the [:typedef A():] is
-// split over several lines:
-typedef
-
-// Cyclic through return type.
-A //# 01: compile-time error
-
-    A // The name of the typedef
-
-// Cyclic through type variable bound.
-<T extends A> //# 10: compile-time error
-
-// Cyclic through generic type variable bound.
-<T extends List<A>> //# 11: compile-time error
-
-    (// The left parenthesis of the typedef arguments.
-
-// Cyclic through parameter type.
-A a //# 02: compile-time error
-
-// Cyclic through optional parameter type.
-[A a] //# 03: compile-time error
-
-// Cyclic through named parameter type.
-{A a} //# 04: compile-time error
-
-// Cyclic through generic parameter type.
-List<A> a //# 05: compile-time error
-
-// Cyclic through return type of function typed parameter.
-A f() //# 06: compile-time error
-
-// Cyclic through parameter type of function typed parameter.
-f(A a) //# 07: compile-time error
-
-// Cyclic through another typedef.
-B b //# 08: compile-time error
-
-// Cyclic through another more typedefs.
-C c //# 09: compile-time error
-
-// Reference through a class is not a cyclic self-reference.
-Class c //# 12: ok
-
-// Reference through a class type bound is not a cyclic self-reference.
-Class c //# 13: compile-time error
-
-    ); // The right parenthesis of the typedef arguments.
-
-typedef B(A a);
-typedef C(B b);
-
-class Class
-<T extends A> //# 13: continued
-{
-  A a; //# 12: continued
-}
-
-void testA(A a) {}
-
-void main() {
-  testA(null);
-}
diff --git a/tests/language_2/typedef/is_test.dart b/tests/language_2/typedef/is_test.dart
deleted file mode 100644
index 788b9909d1e..00000000000
--- a/tests/language_2/typedef/is_test.dart
+++ /dev/null
@@ -1,127 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test is-test of typedefs with optional and named parameters.
-
-typedef int Func1(int a);
-typedef int Func2(int a, [int b]);
-typedef int Func3(int a, [int b, int c]);
-typedef int Func4([int a, int b, int c]);
-typedef int Func5(int a, {int b});
-typedef int Func6(int a, {int b, int c});
-typedef int Func7({int a, int b, int c});
-
-void main() {
-  int func1(int i) {}
-  Expect.isTrue(func1 is Func1);
-  Expect.isFalse(func1 is Func2);
-  Expect.isFalse(func1 is Func3);
-  Expect.isFalse(func1 is Func4);
-  Expect.isFalse(func1 is Func5);
-  Expect.isFalse(func1 is Func6);
-  Expect.isFalse(func1 is Func7);
-
-  int func2(int i, int j) {}
-  Expect.isFalse(func2 is Func1);
-  Expect.isFalse(func2 is Func2);
-  Expect.isFalse(func2 is Func3);
-  Expect.isFalse(func2 is Func4);
-  Expect.isFalse(func2 is Func5);
-  Expect.isFalse(func2 is Func6);
-  Expect.isFalse(func2 is Func7);
-
-  int func3(int i, int j, int k) {}
-  Expect.isFalse(func3 is Func1);
-  Expect.isFalse(func3 is Func2);
-  Expect.isFalse(func3 is Func3);
-  Expect.isFalse(func3 is Func4);
-  Expect.isFalse(func3 is Func5);
-  Expect.isFalse(func3 is Func6);
-  Expect.isFalse(func3 is Func7);
-
-  int func4(int i, [int j]) {}
-  Expect.isTrue(func4 is Func1);
-  Expect.isTrue(func4 is Func2);
-  Expect.isFalse(func4 is Func3);
-  Expect.isFalse(func4 is Func4);
-  Expect.isFalse(func4 is Func5);
-  Expect.isFalse(func4 is Func6);
-  Expect.isFalse(func4 is Func7);
-
-  int func5(int i, [int j, int k]) {}
-  Expect.isTrue(func5 is Func1);
-  Expect.isTrue(func5 is Func2);
-  Expect.isTrue(func5 is Func3);
-  Expect.isFalse(func5 is Func4);
-  Expect.isFalse(func5 is Func5);
-  Expect.isFalse(func5 is Func6);
-  Expect.isFalse(func5 is Func7);
-
-  int func6([int i, int j, int k]) {}
-  Expect.isTrue(func6 is Func1);
-  Expect.isTrue(func6 is Func2);
-  Expect.isTrue(func6 is Func3);
-  Expect.isTrue(func6 is Func4);
-  Expect.isFalse(func6 is Func5);
-  Expect.isFalse(func6 is Func6);
-  Expect.isFalse(func6 is Func7);
-
-  int func7(int i, {int j}) {}
-  Expect.isTrue(func7 is Func1);
-  Expect.isFalse(func7 is Func2);
-  Expect.isFalse(func7 is Func3);
-  Expect.isFalse(func7 is Func4);
-  Expect.isFalse(func7 is Func5);
-  Expect.isFalse(func7 is Func6);
-  Expect.isFalse(func7 is Func7);
-
-  int func8(int i, {int b}) {}
-  Expect.isTrue(func8 is Func1);
-  Expect.isFalse(func8 is Func2);
-  Expect.isFalse(func8 is Func3);
-  Expect.isFalse(func8 is Func4);
-  Expect.isTrue(func8 is Func5);
-  Expect.isFalse(func8 is Func6);
-  Expect.isFalse(func8 is Func7);
-
-  int func9(int i, {int b, int c}) {}
-  Expect.isTrue(func9 is Func1);
-  Expect.isFalse(func9 is Func2);
-  Expect.isFalse(func9 is Func3);
-  Expect.isFalse(func9 is Func4);
-  Expect.isTrue(func9 is Func5);
-  Expect.isTrue(func9 is Func6);
-  Expect.isFalse(func9 is Func7);
-
-  int func10(int i, {int c, int b}) {}
-  Expect.isTrue(func10 is Func1);
-  Expect.isFalse(func10 is Func2);
-  Expect.isFalse(func10 is Func3);
-  Expect.isFalse(func10 is Func4);
-  Expect.isTrue(func10 is Func5);
-  Expect.isTrue(func10 is Func6);
-  Expect.isFalse(func10 is Func7);
-
-  int func11({int a, int b, int c}) {}
-  Expect.isFalse(func11 is Func1);
-  Expect.isFalse(func11 is Func2);
-  Expect.isFalse(func11 is Func3);
-  Expect.isFalse(func11 is Func4);
-  Expect.isFalse(func11 is Func5);
-  Expect.isFalse(func11 is Func6);
-  Expect.isTrue(func11 is Func7);
-
-  int func12({int c, int a, int b}) {}
-  Expect.isFalse(func12 is Func1);
-  Expect.isFalse(func12 is Func2);
-  Expect.isFalse(func12 is Func3);
-  Expect.isFalse(func12 is Func4);
-  Expect.isFalse(func12 is Func5);
-  Expect.isFalse(func12 is Func6);
-  Expect.isTrue(func12 is Func7);
-}
diff --git a/tests/language_2/unsorted/ackermann_test.dart b/tests/language_2/unsorted/ackermann_test.dart
deleted file mode 100644
index 5b2952b2aa3..00000000000
--- a/tests/language_2/unsorted/ackermann_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart version of two-argument Ackermann-Peter function.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class AckermannTest {
-  static int ack(int m, int n) {
-    return m == 0
-        ? n + 1
-        : ((n == 0) ? ack(m - 1, 1) : ack(m - 1, ack(m, n - 1)));
-  }
-
-  static testMain() {
-    Expect.equals(253, ack(3, 5));
-  }
-}
-
-main() {
-  AckermannTest.testMain();
-}
diff --git a/tests/language_2/unsorted/additional_interface_adds_optional_args_concrete_test.dart b/tests/language_2/unsorted/additional_interface_adds_optional_args_concrete_test.dart
deleted file mode 100644
index 83670e28924..00000000000
--- a/tests/language_2/unsorted/additional_interface_adds_optional_args_concrete_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  void foo() {}
-}
-
-abstract class I {
-  void foo([x]);
-}
-
-class B extends A implements I {
-//    ^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_IMPLEMENTATION_OVERRIDE
-// [cfe] The implementation of 'foo' in the non-abstract class 'B' does not conform to its interface.
-
-  // This class declaration violates soundness, since it allows `new
-  // B().foo(42)`, which would lead to invalid arguments being passed to A.foo.
-}
-
-void f(B b) {
-  b.foo();
-}
-
-main() {
-  f(new B());
-}
diff --git a/tests/language_2/unsorted/additional_interface_adds_optional_args_test.dart b/tests/language_2/unsorted/additional_interface_adds_optional_args_test.dart
deleted file mode 100644
index 0c74fd29ac3..00000000000
--- a/tests/language_2/unsorted/additional_interface_adds_optional_args_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test exercises a corner case of override checking that is safe from a
-// soundness perspective, but which we haven't decided whether or not to allow
-// from a usability perspective.
-
-class A {
-  void foo() {}
-}
-
-abstract class I {
-  void foo([x]);
-}
-
-abstract class B extends A implements I {
-  // If this class were concrete, there would be a problem, since `new
-  // B().foo(42)` would be statically allowed, but would lead to invalid
-  // arguments being passed to A.foo.  But since the class is abstract, there is
-  // no problem.
-}
-
-class C extends B {
-  void foo([x]) {
-    super.foo();
-  }
-}
-
-void f(B b) {
-  b.foo(42);
-}
-
-main() {
-  f(new C());
-}
diff --git a/tests/language_2/unsorted/allocate_large_object_test.dart b/tests/language_2/unsorted/allocate_large_object_test.dart
deleted file mode 100644
index 997b4797dd7..00000000000
--- a/tests/language_2/unsorted/allocate_large_object_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  int a;
-  double d1;
-  double d2;
-  double d3;
-  double d4;
-  double d5;
-  double d6;
-  double d7;
-  double d8;
-  double d9;
-  double d10;
-  double d11;
-  double d12;
-  double d13;
-  double d14;
-  static var s;
-
-  static foo() {
-    return s;
-  }
-
-  A(this.a) {}
-
-  value() {
-    return a + foo();
-  }
-}
-
-class AllocateLargeObject {
-  static testMain() {
-    var a = new A(1);
-    A.s = 4;
-    Expect.equals(5, a.value());
-  }
-}
-
-main() {
-  AllocateLargeObject.testMain();
-}
diff --git a/tests/language_2/unsorted/allocate_test.dart b/tests/language_2/unsorted/allocate_test.dart
deleted file mode 100644
index 1c060df294a..00000000000
--- a/tests/language_2/unsorted/allocate_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class MyAllocate {
-  const MyAllocate([int value = 0]) : value_ = value;
-  int getValue() {
-    return value_;
-  }
-
-  final int value_;
-}
-
-class AllocateTest {
-  static testMain() {
-    Expect.equals(900, (new MyAllocate(900)).getValue());
-  }
-}
-
-main() {
-  AllocateTest.testMain();
-}
diff --git a/tests/language_2/unsorted/arg_param_trailing_comma_test.dart b/tests/language_2/unsorted/arg_param_trailing_comma_test.dart
deleted file mode 100644
index 335cfac50bd..00000000000
--- a/tests/language_2/unsorted/arg_param_trailing_comma_test.dart
+++ /dev/null
@@ -1,564 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing params.
-
-// @dart = 2.9
-
-// Convenience values.
-var c = new C();
-var x = 42;
-var y = 42;
-var z = 42;
-
-// Trailing comma in parameter lists.
-
-// Typedefs.
-typedef fx(x, ); //                                     //# none: ok
-typedef fy([y,]); //                                    //# none: continued
-typedef fxy(x, [y, ]); //                               //# none: continued
-typedef fz({z,}); //                                    //# none: continued
-typedef fxz(x, {z, }); //                               //# none: continued
-
-// As arguments type.
-argfx(void f(x, )) {} //                                //# none: continued
-argfy(void f([y, ])) {} //                              //# none: continued
-argfxy(void f(x, [y, ])) {} //                          //# none: continued
-argfz(void f({z, })) {} //                              //# none: continued
-argfxz(void f(x, {z, })) {} //                          //# none: continued
-
-// Top level functions
-void topx(x,) {} //                                     //# none: continued
-void topy([y, ]) {} //                                  //# none: continued
-void topxy(x, [y, ]) {} //                              //# none: continued
-void topz({z, }) {} //                                  //# none: continued
-void topxz(x, {z, }) {} //                              //# none: continued
-
-void set topsetx(x, ) {} //                             //# none: continued
-
-// After specific parameter formats.
-void afterDefaultValueY([int y = 42, ]) {} //           //# none: continued
-void afterDefaultValueZ({int z : 42, }) {} //           //# none: continued
-void afterFunsigX(void f(),) {} //                      //# none: continued
-void afterFunsigY([void f(),]) {} //                    //# none: continued
-void afterFunsigZ({void f(),}) {} //                    //# none: continued
-void afterFunsigDefaultValueY([void f() = topy,]) {} // //# none: continued
-void afterFunsigDefaultValueZ({void f() : topz,}) {} // //# none: continued
-
-class C {
-  C();
-
-  // Constructors.
-  C.x(x, ); //                                          //# none: continued
-  C.y([y, ]); //                                        //# none: continued
-  C.xy(x, [y, ]); //                                    //# none: continued
-  C.z({z, }); //                                        //# none: continued
-  C.xz(x, {z, }); //                                    //# none: continued
-
-  // Static members
-  static void staticx(x,) {} //                         //# none: continued
-  static void staticy([y, ]) {} //                      //# none: continued
-  static void staticxy(x, [y, ]) {} //                  //# none: continued
-  static void staticz({z, }) {} //                      //# none: continued
-  static void staticxz(x, {z, }) {} //                  //# none: continued
-
-  static void set staticsetx(x, ) {} //                 //# none: continued
-
-  // Instance members
-  void instancex(x,) {} //                              //# none: continued
-  void instancey([y, ]) {} //                           //# none: continued
-  void instancexy(x, [y, ]) {} //                       //# none: continued
-  void instancez({z, }) {} //                           //# none: continued
-  void instancexz(x, {z, }) {} //                       //# none: continued
-
-  void set instancesetx(x, ) {} //                      //# none: continued
-
-  operator +(x, ) => this; //                           //# none: continued
-  operator []=(x, y, ) {} //                            //# none: continued
-}
-
-main() {
-  testCalls(); //                                       //# none: continued
-  // Make sure the cases are checked.
-  testBadCalls();
-}
-
-void testCalls() {
-  // Check that all functions can be called normally
-  topx(x); //                                           //# none: continued
-  topy(y); //                                           //# none: continued
-  topxy(x, y); //                                       //# none: continued
-  topz(); //                                            //# none: continued
-  topz(z: z); //                                        //# none: continued
-  topxz(x); //                                          //# none: continued
-  topxz(x, z: z); //                                    //# none: continued
-  topsetx = x; //                                       //# none: continued
-  afterDefaultValueY(); //                              //# none: continued
-  afterDefaultValueY(y); //                             //# none: continued
-  afterDefaultValueZ(); //                              //# none: continued
-  afterDefaultValueZ(z: z); //                          //# none: continued
-  new C.x(x); //                                        //# none: continued
-  new C.xy(x); //                                       //# none: continued
-  new C.xy(x, y); //                                    //# none: continued
-  new C.y(y); //                                        //# none: continued
-  new C.xz(x); //                                       //# none: continued
-  new C.xz(x, z: z); //                                 //# none: continued
-  new C.z(z: z); //                                     //# none: continued
-  C.staticx(x); //                                      //# none: continued
-  C.staticy(y); //                                      //# none: continued
-  C.staticxy(x); //                                     //# none: continued
-  C.staticxy(x, y); //                                  //# none: continued
-  C.staticz(); //                                       //# none: continued
-  C.staticz(z: z); //                                   //# none: continued
-  C.staticxz(x); //                                     //# none: continued
-  C.staticxz(x, z: z); //                               //# none: continued
-  C.staticsetx = x; //                                  //# none: continued
-  c.instancex(x); //                                    //# none: continued
-  c.instancey(); //                                     //# none: continued
-  c.instancey(y); //                                    //# none: continued
-  c.instancexy(x); //                                   //# none: continued
-  c.instancexy(x, y); //                                //# none: continued
-  c.instancez(); //                                     //# none: continued
-  c.instancez(z: z); //                                 //# none: continued
-  c.instancexz(x); //                                   //# none: continued
-  c.instancexz(x, z: z); //                             //# none: continued
-  c.instancesetx = x; //                                //# none: continued
-  c + x; //                                             //# none: continued
-  c[x] = y; //                                          //# none: continued
-
-  // Call with extra comma (not possible for setters and operators).
-  topx(x, ); //                                         //# none: continued
-  topy(y, ); //                                         //# none: continued
-  topxy(x, y, ); //                                     //# none: continued
-  topxy(x, ); //                                        //# none: continued
-  topz(z: z, ); //                                      //# none: continued
-  topxz(x, ); //                                        //# none: continued
-  topxz(x, z: z, ); //                                  //# none: continued
-  new C.x(x, ); //                                      //# none: continued
-  new C.xy(x, y, ); //                                  //# none: continued
-  new C.xy(x, ); //                                     //# none: continued
-  new C.y(y, ); //                                      //# none: continued
-  new C.xz(x, ); //                                     //# none: continued
-  new C.xz(x, z: z, ); //                               //# none: continued
-  new C.z(z: z, ); //                                   //# none: continued
-  C.staticx(x, ); //                                    //# none: continued
-  C.staticy(y, ); //                                    //# none: continued
-  C.staticxy(x, y, ); //                                //# none: continued
-  C.staticxy(x, ); //                                   //# none: continued
-  C.staticz(z: z, ); //                                 //# none: continued
-  C.staticxz(x, ); //                                   //# none: continued
-  C.staticxz(x, z: z, ); //                             //# none: continued
-  c.instancex(x, ); //                                  //# none: continued
-  c.instancey(y, ); //                                  //# none: continued
-  c.instancexy(x, y, ); //                              //# none: continued
-  c.instancexy(x, ); //                                 //# none: continued
-  c.instancez(z: z, ); //                               //# none: continued
-  c.instancexz(x, ); //                                 //# none: continued
-  c.instancexz(x, z: z, ); //                           //# none: continued
-
-  // Typedefs work as expected.
-  if (topx is! fx) throw "Bad type: $fx"; //            //# none: continued
-  if (topy is! fy) throw "Bad type: $fy"; //            //# none: continued
-  if (topxy is! fxy) throw "Bad type: $fxy"; //         //# none: continued
-  if (topz is! fz) throw "Bad type: $fz"; //            //# none: continued
-  if (topxz is! fxz) throw "Bad type: $fxz"; //         //# none: continued
-
-  // Parameter types work (checked mode only test).
-  argfx(topx); //                                       //# none: continued
-  argfy(topy); //                                       //# none: continued
-  argfxy(topxy); //                                     //# none: continued
-  argfz(topz); //                                       //# none: continued
-  argfxz(topxz); //                                     //# none: continued
-}
-
-// Invalid syntax. This was invalid syntax before the addition of trailing
-// commas too, and should stay that way.
-void topBadEmpty(,) {} //                          //# 1: syntax error
-void topBadStart(, a) {} //                        //# 2: syntax error
-void topBadEnd(a,,) {} //                          //# 3: syntax error
-void topBadMiddle(a,, b) {} //                     //# 4: syntax error
-void topBadPosEmpty([]) {} //                      //# 5: syntax error
-void topBadPosEmpty(,[]) {} //                     //# 6: syntax error
-void topBadPosEmpty([,]) {} //                     //# 7: syntax error
-void topBadPosEmpty([],) {} //                     //# 8: syntax error
-void topBadPosStart(,[a]) {} //                    //# 9: syntax error
-void topBadPosStart([, a]) {} //                   //# 10: syntax error
-void topBadPosEnd([a,,]) {} //                     //# 11: syntax error
-void topBadPosStart([a],) {} //                    //# 12: syntax error
-void topBadPosMiddle([a,, b]) {} //                //# 13: syntax error
-void topBadNamEmpty({}) {} //                      //# 14: syntax error
-void topBadNamEmpty(,{}) {} //                     //# 15: syntax error
-void topBadNamEmpty({,}) {} //                     //# 16: syntax error
-void topBadNamEmpty({},) {} //                     //# 17: syntax error
-void topBadNamStart(,{a}) {} //                    //# 18: syntax error
-void topBadNamStart({, a}) {} //                   //# 19: syntax error
-void topBadNamEnd({a,,}) {} //                     //# 20: syntax error
-void topBadNamStart({a},) {} //                    //# 21: syntax error
-void topBadNamMiddle({a,, b}) {} //                //# 22: syntax error
-void set topSetBadEmpty(,) {} //                   //# 23: syntax error
-void set topSetBadStart(, a) {} //                 //# 24: syntax error
-void set topSetBadEnd(a,,) {} //                   //# 25: syntax error
-void set topSetBadMiddle(a,, b) {} //              //# 26: syntax error
-class Bad {
-  Bad() {}
-  Bad.empty(,) {} //                               //# 27: syntax error
-  Bad.start(, a) {} //                             //# 28: syntax error
-  Bad.end(a,,) {} //                               //# 29: syntax error
-  Bad.middle(a,, b) {} //                          //# 30: syntax error
-  Bad.posEmpty([]) {} //                           //# 31: syntax error
-  Bad.posEmpty(,[]) {} //                          //# 32: syntax error
-  Bad.posEmpty([,]) {} //                          //# 33: syntax error
-  Bad.posEmpty([],) {} //                          //# 34: syntax error
-  Bad.posStart(,[a]) {} //                         //# 35: syntax error
-  Bad.posStart([, a]) {} //                        //# 36: syntax error
-  Bad.posEnd([a,,]) {} //                          //# 37: syntax error
-  Bad.posStart([a],) {} //                         //# 38: syntax error
-  Bad.PosMiddle([a,, b]) {} //                     //# 39: syntax error
-  Bad.namEmpty({}) {} //                           //# 40: syntax error
-  Bad.namEmpty(,{}) {} //                          //# 41: syntax error
-  Bad.namEmpty({,}) {} //                          //# 42: syntax error
-  Bad.namEmpty({},) {} //                          //# 43: syntax error
-  Bad.namStart(,{a}) {} //                         //# 44: syntax error
-  Bad.namStart({, a}) {} //                        //# 45: syntax error
-  Bad.namEnd({a,,}) {} //                          //# 46: syntax error
-  Bad.namStart({a},) {} //                         //# 47: syntax error
-  Bad.namMiddle({a,, b}) {} //                     //# 48: syntax error
-  static void staticBadEmpty(,) {} //              //# 49: syntax error
-  static void staticBadStart(, a) {} //            //# 50: syntax error
-  static void staticBadEnd(a,,) {} //              //# 51: syntax error
-  static void staticBadMiddle(a,, b) {} //         //# 52: syntax error
-  static void staticBadPosEmpty([]) {} //          //# 53: syntax error
-  static void staticBadPosEmpty(,[]) {} //         //# 54: syntax error
-  static void staticBadPosEmpty([,]) {} //         //# 55: syntax error
-  static void staticBadPosEmpty([],) {} //         //# 56: syntax error
-  static void staticBadPosStart(,[a]) {} //        //# 57: syntax error
-  static void staticBadPosStart([, a]) {} //       //# 58: syntax error
-  static void staticBadPosEnd([a,,]) {} //         //# 59: syntax error
-  static void staticBadPosStart([a],) {} //        //# 60: syntax error
-  static void staticBadPosMiddle([a,, b]) {} //    //# 61: syntax error
-  static void staticBadNamEmpty({}) {} //          //# 62: syntax error
-  static void staticBadNamEmpty(,{}) {} //         //# 63: syntax error
-  static void staticBadNamEmpty({,}) {} //         //# 64: syntax error
-  static void staticBadNamEmpty({},) {} //         //# 65: syntax error
-  static void staticBadNamStart(,{a}) {} //        //# 66: syntax error
-  static void staticBadNamStart({, a}) {} //       //# 67: syntax error
-  static void staticBadNamEnd({a,,}) {} //         //# 68: syntax error
-  static void staticBadNamStart({a},) {} //        //# 69: syntax error
-  static void staticBadNamMiddle({a,, b}) {} //    //# 70: syntax error
-  static void set staticSetBadEmpty(,) {} //       //# 71: syntax error
-  static void set staticSetBadStart(, a) {} //     //# 72: syntax error
-  static void set staticSetBadEnd(a,,) {} //       //# 73: syntax error
-  static void set staticSetBadMiddle(a,, b) {} //  //# 74: syntax error
-  void instanceBadEmpty(,) {} //                   //# 75: syntax error
-  void instanceBadStart(, a) {} //                 //# 76: syntax error
-  void instanceBadEnd(a,,) {} //                   //# 77: syntax error
-  void instanceBadMiddle(a,, b) {} //              //# 78: syntax error
-  void instanceBadPosEmpty([]) {} //               //# 79: syntax error
-  void instanceBadPosEmpty(,[]) {} //              //# 80: syntax error
-  void instanceBadPosEmpty([,]) {} //              //# 81: syntax error
-  void instanceBadPosEmpty([],) {} //              //# 82: syntax error
-  void instanceBadPosStart(,[a]) {} //             //# 83: syntax error
-  void instanceBadPosStart([, a]) {} //            //# 84: syntax error
-  void instanceBadPosEnd([a,,]) {} //              //# 85: syntax error
-  void instanceBadPosStart([a],) {} //             //# 86: syntax error
-  void instanceBadPosMiddle([a,, b]) {} //         //# 87: syntax error
-  void instanceBadNamEmpty({}) {} //               //# 88: syntax error
-  void instanceBadNamEmpty(,{}) {} //              //# 89: syntax error
-  void instanceBadNamEmpty({,}) {} //              //# 90: syntax error
-  void instanceBadNamEmpty({},) {} //              //# 91: syntax error
-  void instanceBadNamStart(,{a}) {} //             //# 92: syntax error
-  void instanceBadNamStart({, a}) {} //            //# 93: syntax error
-  void instanceBadNamEnd({a,,}) {} //              //# 94: syntax error
-  void instanceBadNamStart({a},) {} //             //# 95: syntax error
-  void instanceBadNamMiddle({a,, b}) {} //         //# 96: syntax error
-  void set instanceSetBadEmpty(,) {} //            //# 97: syntax error
-  void set instanceSetBadStart(, a) {} //          //# 98: syntax error
-  void set instanceSetBadEnd(a,,) {} //            //# 99: syntax error
-  void set instanceSetBadMiddle(a,, b) {} //       //# 100: syntax error
-  void operator *(,); //                           //# 101: syntax error
-  void operator *(, a); //                         //# 102: syntax error
-  void operator *(a,,); //                         //# 103: syntax error
-  void operator []=(, a); //                       //# 104: syntax error
-  void operator []=(a,,); //                       //# 105: syntax error
-  void operator []=(a,, b); //                     //# 106: syntax error
-  void operator []=(a,); //                        //# 107: compile-time error
-
-  method() {
-    // Local methods.
-    void localBadEmpty(,) {} //                    //# 108: syntax error
-    void localBadStart(, a) {} //                  //# 109: syntax error
-    void localBadEnd(a,,) {} //                    //# 110: syntax error
-    void localBadMiddle(a,, b) {} //               //# 111: syntax error
-    void localBadPosEmpty([]) {} //                //# 112: syntax error
-    void localBadPosEmpty(,[]) {} //               //# 113: syntax error
-    void localBadPosEmpty([,]) {} //               //# 114: syntax error
-    void localBadPosEmpty([],) {} //               //# 115: syntax error
-    void localBadPosStart(,[a]) {} //              //# 116: syntax error
-    void localBadPosStart([, a]) {} //             //# 117: syntax error
-    void localBadPosEnd([a,,]) {} //               //# 118: syntax error
-    void localBadPosStart([a],) {} //              //# 119: syntax error
-    void localBadPosMiddle([a,, b]) {} //          //# 120: syntax error
-    void localBadNamEmpty({}) {} //                //# 121: syntax error
-    void localBadNamEmpty(,{}) {} //               //# 122: syntax error
-    void localBadNamEmpty({,}) {} //               //# 123: syntax error
-    void localBadNamEmpty({},) {} //               //# 124: syntax error
-    void localBadNamStart(,{a}) {} //              //# 125: syntax error
-    void localBadNamStart({, a}) {} //             //# 126: syntax error
-    void localBadNamEnd({a,,}) {} //               //# 127: syntax error
-    void localBadNamStart({a},) {} //              //# 128: syntax error
-    void localBadNamMiddle({a,, b}) {} //          //# 129: syntax error
-
-    // invalid calls.
-
-    topx(,); //                                    //# 130: syntax error
-    topy(,); //                                    //# 131: syntax error
-    topz(,); //                                    //# 132: syntax error
-    topx(, x); //                                  //# 133: syntax error
-    topz(, z:z); //                                //# 134: syntax error
-    topxy(x,, y); //                               //# 135: syntax error
-    topxz(x,, z:z); //                             //# 136: syntax error
-    topx(x,,); //                                  //# 137: syntax error
-    topz(z:z,,); //                                //# 138: syntax error
-
-    new C.x(,); //                                 //# 139: syntax error
-    new C.y(,); //                                 //# 140: syntax error
-    new C.z(,); //                                 //# 141: syntax error
-    new C.x(, x); //                               //# 142: syntax error
-    new C.z(, z:z); //                             //# 143: syntax error
-    new C.xy(x,, y); //                            //# 144: syntax error
-    new C.xz(x,, z:z); //                          //# 145: syntax error
-    new C.x(x,,); //                               //# 146: syntax error
-    new C.z(z:z,,); //                             //# 147: syntax error
-
-    C.staticx(,); //                               //# 148: syntax error
-    C.staticy(,); //                               //# 149: syntax error
-    C.staticz(,); //                               //# 150: syntax error
-    C.staticx(, x); //                             //# 151: syntax error
-    C.staticz(, z:z); //                           //# 152: syntax error
-    C.staticxy(x,, y); //                          //# 153: syntax error
-    C.staticxz(x,, z:z); //                        //# 154: syntax error
-    C.staticx(x,,); //                             //# 155: syntax error
-    C.staticz(z:z,,); //                           //# 156: syntax error
-
-    c.instancex(,); //                             //# 157: syntax error
-    c.instancey(,); //                             //# 158: syntax error
-    c.instancez(,); //                             //# 159: syntax error
-    c.instancex(, x); //                           //# 160: syntax error
-    c.instancez(, z:z); //                         //# 161: syntax error
-    c.instancexy(x,, y); //                        //# 162: syntax error
-    c.instancexz(x,, z:z); //                      //# 163: syntax error
-    c.instancex(x,,); //                           //# 164: syntax error
-    c.instancez(z:z,,); //                         //# 165: syntax error
-
-    c[x,] = y; //                                  //# 166: syntax error
-  }
-
-  // As parameters:
-  void f(void topBadEmpty(,)) {} //                //# 167: syntax error
-  void f(void topBadStart(, a)) {} //              //# 168: syntax error
-  void f(void topBadEnd(a,,)) {} //                //# 169: syntax error
-  void f(void topBadMiddle(a,, b)) {} //           //# 170: syntax error
-  void f(void topBadPosEmpty([])) {} //            //# 171: syntax error
-  void f(void topBadPosEmpty(,[])) {} //           //# 172: syntax error
-  void f(void topBadPosEmpty([,])) {} //           //# 173: syntax error
-  void f(void topBadPosEmpty([],)) {} //           //# 174: syntax error
-  void f(void topBadPosStart(,[a])) {} //          //# 175: syntax error
-  void f(void topBadPosStart([, a])) {} //         //# 176: syntax error
-  void f(void topBadPosEnd([a,,])) {} //           //# 177: syntax error
-  void f(void topBadPosStart([a],)) {} //          //# 178: syntax error
-  void f(void topBadPosMiddle([a,, b])) {} //      //# 179: syntax error
-  void f(void topBadNamEmpty({})) {} //            //# 180: syntax error
-  void f(void topBadNamEmpty(,{})) {} //           //# 181: syntax error
-  void f(void topBadNamEmpty({,})) {} //           //# 182: syntax error
-  void f(void topBadNamEmpty({},)) {} //           //# 183: syntax error
-  void f(void topBadNamStart(,{a})) {} //          //# 184: syntax error
-  void f(void topBadNamStart({, a})) {} //         //# 185: syntax error
-  void f(void topBadNamEnd({a,,})) {} //           //# 186: syntax error
-  void f(void topBadNamStart({a},)) {} //          //# 187: syntax error
-  void f(void topBadNamMiddle({a,, b})) {} //      //# 188: syntax error
-}
-
-// As typedefs
-typedef void BadEmpty(,); //                       //# 189: syntax error
-typedef void BadStart(, a); //                     //# 190: syntax error
-typedef void BadEnd(a,,); //                       //# 191: syntax error
-typedef void BadMiddle(a,, b); //                  //# 192: syntax error
-typedef void BadPosEmpty([]); //                   //# 193: syntax error
-typedef void BadPosEmpty(,[]); //                  //# 194: syntax error
-typedef void BadPosEmpty([,]); //                  //# 195: syntax error
-typedef void BadPosEmpty([],); //                  //# 196: syntax error
-typedef void BadPosStart(,[a]); //                 //# 197: syntax error
-typedef void BadPosStart([, a]); //                //# 198: syntax error
-typedef void BadPosEnd([a,,]); //                  //# 199: syntax error
-typedef void BadPosStart([a],); //                 //# 200: syntax error
-typedef void BadPosMiddle([a,, b]); //             //# 201: syntax error
-typedef void BadNamEmpty({}); //                   //# 202: syntax error
-typedef void BadNamEmpty(,{}); //                  //# 203: syntax error
-typedef void BadNamEmpty({,}); //                  //# 204: syntax error
-typedef void BadNamEmpty({},); //                  //# 205: syntax error
-typedef void BadNamStart(,{a}); //                 //# 206: syntax error
-typedef void BadNamStart({, a}); //                //# 207: syntax error
-typedef void BadNamEnd({a,,}); //                  //# 208: syntax error
-typedef void BadNamStart({a},); //                 //# 209: syntax error
-typedef void BadNamMiddle({a,, b}); //             //# 210: syntax error
-
-void testBadCalls() {
-  topBadEmpty(); //                                //# 1: continued
-  topBadStart(); //                                //# 2: continued
-  topBadEnd(); //                                  //# 3: continued
-  topBadMiddle(); //                               //# 4: continued
-  topBadPosEmpty(); //                             //# 5: continued
-  topBadPosEmpty(); //                             //# 6: continued
-  topBadPosEmpty(); //                             //# 7: continued
-  topBadPosEmpty(); //                             //# 8: continued
-  topBadPosStart(); //                             //# 9: continued
-  topBadPosStart(); //                             //# 10: continued
-  topBadPosEnd(); //                               //# 11: continued
-  topBadPosStart(); //                             //# 12: continued
-  topBadPosMiddle(); //                            //# 13: continued
-  topBadNamEmpty(); //                             //# 14: continued
-  topBadNamEmpty(); //                             //# 15: continued
-  topBadNamEmpty(); //                             //# 16: continued
-  topBadNamEmpty(); //                             //# 17: continued
-  topBadNamStart(); //                             //# 18: continued
-  topBadNamStart(); //                             //# 19: continued
-  topBadNamEnd(); //                               //# 20: continued
-  topBadNamStart(); //                             //# 21: continued
-  topBadNamMiddle(); //                            //# 22: continued
-  topSetBadEmpty = 1; //                           //# 23: continued
-  topSetBadStart = 1; //                           //# 24: continued
-  topSetBadEnd = 1; //                             //# 25: continued
-  topSetBadMiddle = 1; //                          //# 26: continued
-  new Bad.empty(); //                              //# 27: continued
-  new Bad.start(); //                              //# 28: continued
-  new Bad.end(); //                                //# 29: continued
-  new Bad.middle(); //                             //# 30: continued
-  new Bad.posEmpty(); //                           //# 31: continued
-  new Bad.posEmpty(); //                           //# 32: continued
-  new Bad.posEmpty(); //                           //# 33: continued
-  new Bad.posEmpty(); //                           //# 34: continued
-  new Bad.posStart(); //                           //# 35: continued
-  new Bad.posStart(); //                           //# 36: continued
-  new Bad.posEnd(); //                             //# 37: continued
-  new Bad.posStart(); //                           //# 38: continued
-  new Bad.PosMiddle(); //                          //# 39: continued
-  new Bad.namEmpty(); //                           //# 40: continued
-  new Bad.namEmpty(); //                           //# 41: continued
-  new Bad.namEmpty(); //                           //# 42: continued
-  new Bad.namEmpty(); //                           //# 43: continued
-  new Bad.namStart(); //                           //# 44: continued
-  new Bad.namStart(); //                           //# 45: continued
-  new Bad.namEnd(); //                             //# 46: continued
-  new Bad.namStart(); //                           //# 47: continued
-  new Bad.namMiddle(); //                          //# 48: continued
-  Bad.staticBadEmpty(); //                         //# 49: continued
-  Bad.staticBadStart(); //                         //# 50: continued
-  Bad.staticBadEnd(); //                           //# 51: continued
-  Bad.staticBadMiddle(); //                        //# 52: continued
-  Bad.staticBadPosEmpty(); //                      //# 53: continued
-  Bad.staticBadPosEmpty(); //                      //# 54: continued
-  Bad.staticBadPosEmpty(); //                      //# 55: continued
-  Bad.staticBadPosEmpty(); //                      //# 56: continued
-  Bad.staticBadPosStart(); //                      //# 57: continued
-  Bad.staticBadPosStart(); //                      //# 58: continued
-  Bad.staticBadPosEnd(); //                        //# 59: continued
-  Bad.staticBadPosStart(); //                      //# 60: continued
-  Bad.staticBadPosMiddle(); //                     //# 61: continued
-  Bad.staticBadNamEmpty(); //                      //# 62: continued
-  Bad.staticBadNamEmpty(); //                      //# 63: continued
-  Bad.staticBadNamEmpty(); //                      //# 64: continued
-  Bad.staticBadNamEmpty(); //                      //# 65: continued
-  Bad.staticBadNamStart(); //                      //# 66: continued
-  Bad.staticBadNamStart(); //                      //# 67: continued
-  Bad.staticBadNamEnd(); //                        //# 68: continued
-  Bad.staticBadNamStart(); //                      //# 69: continued
-  Bad.staticBadNamMiddle(); //                     //# 70: continued
-  Bad.staticSetBadEmpty = 1; //                    //# 71: continued
-  Bad.staticSetBadStart = 1; //                    //# 72: continued
-  Bad.staticSetBadEnd = 1; //                      //# 73: continued
-  Bad.staticSetBadMiddle = 1; //                   //# 74: continued
-
-  var bad = new Bad();
-  bad.instanceBadEmpty(); //                       //# 75: continued
-  bad.instanceBadStart(); //                       //# 76: continued
-  bad.instanceBadEnd(); //                         //# 77: continued
-  bad.instanceBadMiddle(); //                      //# 78: continued
-  bad.instanceBadPosEmpty(); //                    //# 79: continued
-  bad.instanceBadPosEmpty(); //                    //# 80: continued
-  bad.instanceBadPosEmpty(); //                    //# 81: continued
-  bad.instanceBadPosEmpty(); //                    //# 82: continued
-  bad.instanceBadPosStart(); //                    //# 83: continued
-  bad.instanceBadPosStart(); //                    //# 84: continued
-  bad.instanceBadPosEnd(); //                      //# 85: continued
-  bad.instanceBadPosStart(); //                    //# 86: continued
-  bad.instanceBadPosMiddle(); //                   //# 87: continued
-  bad.instanceBadNamEmpty(); //                    //# 88: continued
-  bad.instanceBadNamEmpty(); //                    //# 89: continued
-  bad.instanceBadNamEmpty(); //                    //# 90: continued
-  bad.instanceBadNamEmpty(); //                    //# 91: continued
-  bad.instanceBadNamStart(); //                    //# 92: continued
-  bad.instanceBadNamStart(); //                    //# 93: continued
-  bad.instanceBadNamEnd(); //                      //# 94: continued
-  bad.instanceBadNamStart(); //                    //# 95: continued
-  bad.instanceBadNamMiddle(); //                   //# 96: continued
-  bad.instanceSetBadEmpty = 1; //                  //# 97: continued
-  bad.instanceSetBadStart = 1; //                  //# 98: continued
-  bad.instanceSetBadEnd = 1; //                    //# 99: continued
-  bad.instanceSetBadMiddle = 1; //                 //# 100: continued
-  bad * bad; //                                    //# 101: continued
-  bad * bad; //                                    //# 102: continued
-  bad * bad; //                                    //# 103: continued
-  bad[1] = 1; //                                   //# 104: continued
-  bad[1] = 1; //                                   //# 105: continued
-  bad[1] = 1; //                                   //# 106: continued
-  bad[1] = 1; //                                   //# 107: continued
-
-  // This covers tests 108-166
-  bad.method();
-
-  bad.f(() {}); //                                 //# 167: continued
-  bad.f(() {}); //                                 //# 168: continued
-  bad.f(() {}); //                                 //# 169: continued
-  bad.f(() {}); //                                 //# 170: continued
-  bad.f(() {}); //                                 //# 171: continued
-  bad.f(() {}); //                                 //# 172: continued
-  bad.f(() {}); //                                 //# 173: continued
-  bad.f(() {}); //                                 //# 174: continued
-  bad.f(() {}); //                                 //# 175: continued
-  bad.f(() {}); //                                 //# 176: continued
-  bad.f(() {}); //                                 //# 177: continued
-  bad.f(() {}); //                                 //# 178: continued
-  bad.f(() {}); //                                 //# 179: continued
-  bad.f(() {}); //                                 //# 180: continued
-  bad.f(() {}); //                                 //# 181: continued
-  bad.f(() {}); //                                 //# 182: continued
-  bad.f(() {}); //                                 //# 183: continued
-  bad.f(() {}); //                                 //# 184: continued
-  bad.f(() {}); //                                 //# 185: continued
-  bad.f(() {}); //                                 //# 186: continued
-  bad.f(() {}); //                                 //# 187: continued
-  bad.f(() {}); //                                 //# 188: continued
-
-  BadEmpty x; //                                   //# 189: continued
-  BadStart x; //                                   //# 190: continued
-  BadEnd x; //                                     //# 191: continued
-  BadMiddle x; //                                  //# 192: continued
-  BadPosEmpty x; //                                //# 193: continued
-  BadPosEmpty x; //                                //# 194: continued
-  BadPosEmpty x; //                                //# 195: continued
-  BadPosEmpty x; //                                //# 196: continued
-  BadPosStart x; //                                //# 197: continued
-  BadPosStart x; //                                //# 198: continued
-  BadPosEnd x; //                                  //# 199: continued
-  BadPosStart x; //                                //# 200: continued
-  BadPosMiddle x; //                               //# 201: continued
-  BadNamEmpty x; //                                //# 202: continued
-  BadNamEmpty x; //                                //# 203: continued
-  BadNamEmpty x; //                                //# 204: continued
-  BadNamEmpty x; //                                //# 205: continued
-  BadNamStart x; //                                //# 206: continued
-  BadNamStart x; //                                //# 207: continued
-  BadNamEnd x; //                                  //# 208: continued
-  BadNamStart x; //                                //# 209: continued
-  BadNamMiddle x; //                               //# 210: continued
-}
diff --git a/tests/language_2/unsorted/assignable_expression_runtime_test.dart b/tests/language_2/unsorted/assignable_expression_runtime_test.dart
deleted file mode 100644
index 77daac8c599..00000000000
--- a/tests/language_2/unsorted/assignable_expression_runtime_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test to detect syntactically illegal left-hand-side (assignable)
-// expressions.
-
-class C {
-  static dynamic field = 0;
-}
-
-dynamic variable = 0;
-
-main() {
-  variable = 0;
-
-
-
-
-  C.field = 0;
-
-
-
-
-  variable = [1, 2, 3];
-  variable[0] = 0;
-  (variable)[0] = 0;
-
-
-
-
-  C.field = [1, 2, 3];
-
-
-
-
-  var a = 0;
-
-
-
-
-  // Neat palindrome expression. x is assignable, ((x)) is not.
-
-}
diff --git a/tests/language_2/unsorted/assignable_expression_test.dart b/tests/language_2/unsorted/assignable_expression_test.dart
deleted file mode 100644
index 4074af4f51b..00000000000
--- a/tests/language_2/unsorted/assignable_expression_test.dart
+++ /dev/null
@@ -1,115 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test to detect syntactically illegal left-hand-side (assignable)
-// expressions.
-
-class C {
-  static dynamic field = 0;
-}
-
-dynamic variable = 0;
-
-main() {
-  variable = 0;
-  (variable) = 0;
-//^^^^^^^^^^
-// [analyzer] SYNTACTIC_ERROR.ILLEGAL_ASSIGNMENT_TO_NON_ASSIGNABLE
-//^^^^^^^^^^
-// [analyzer] SYNTACTIC_ERROR.MISSING_ASSIGNABLE_SELECTOR
-//         ^
-// [cfe] Can't assign to a parenthesized expression.
-  (variable)++;
-  //       ^
-  // [cfe] Can't assign to a parenthesized expression.
-  //        ^^
-  // [analyzer] SYNTACTIC_ERROR.ILLEGAL_ASSIGNMENT_TO_NON_ASSIGNABLE
-  ++(variable);
-  //         ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_ASSIGNABLE_SELECTOR
-  // [cfe] Can't assign to a parenthesized expression.
-
-  C.field = 0;
-  (C.field) = 0;
-//^^^^^^^^^
-// [analyzer] SYNTACTIC_ERROR.ILLEGAL_ASSIGNMENT_TO_NON_ASSIGNABLE
-//^^^^^^^^^
-// [analyzer] SYNTACTIC_ERROR.MISSING_ASSIGNABLE_SELECTOR
-//        ^
-// [cfe] Can't assign to a parenthesized expression.
-  (C.field)++;
-  //      ^
-  // [cfe] Can't assign to a parenthesized expression.
-  //       ^^
-  // [analyzer] SYNTACTIC_ERROR.ILLEGAL_ASSIGNMENT_TO_NON_ASSIGNABLE
-  ++(C.field);
-  //        ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_ASSIGNABLE_SELECTOR
-  // [cfe] Can't assign to a parenthesized expression.
-
-  variable = [1, 2, 3];
-  variable[0] = 0;
-  (variable)[0] = 0;
-  (variable[0]) = 0;
-//^^^^^^^^^^^^^
-// [analyzer] SYNTACTIC_ERROR.ILLEGAL_ASSIGNMENT_TO_NON_ASSIGNABLE
-//^^^^^^^^^^^^^
-// [analyzer] SYNTACTIC_ERROR.MISSING_ASSIGNABLE_SELECTOR
-//            ^
-// [cfe] Can't assign to a parenthesized expression.
-  (variable[0])++;
-  //          ^
-  // [cfe] Can't assign to a parenthesized expression.
-  //           ^^
-  // [analyzer] SYNTACTIC_ERROR.ILLEGAL_ASSIGNMENT_TO_NON_ASSIGNABLE
-  ++(variable[0]);
-  //            ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_ASSIGNABLE_SELECTOR
-  // [cfe] Can't assign to a parenthesized expression.
-
-  C.field = [1, 2, 3];
-  (C.field[0]) = 0;
-//^^^^^^^^^^^^
-// [analyzer] SYNTACTIC_ERROR.ILLEGAL_ASSIGNMENT_TO_NON_ASSIGNABLE
-//^^^^^^^^^^^^
-// [analyzer] SYNTACTIC_ERROR.MISSING_ASSIGNABLE_SELECTOR
-//           ^
-// [cfe] Can't assign to a parenthesized expression.
-  (C.field[0])++;
-  //         ^
-  // [cfe] Can't assign to a parenthesized expression.
-  //          ^^
-  // [analyzer] SYNTACTIC_ERROR.ILLEGAL_ASSIGNMENT_TO_NON_ASSIGNABLE
-  ++(C.field[0]);
-  //           ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_ASSIGNABLE_SELECTOR
-  // [cfe] Can't assign to a parenthesized expression.
-
-  var a = 0;
-  (a) = 0;
-//^^^
-// [analyzer] SYNTACTIC_ERROR.ILLEGAL_ASSIGNMENT_TO_NON_ASSIGNABLE
-//^^^
-// [analyzer] SYNTACTIC_ERROR.MISSING_ASSIGNABLE_SELECTOR
-//  ^
-// [cfe] Can't assign to a parenthesized expression.
-  (a)++;
-  //^
-  // [cfe] Can't assign to a parenthesized expression.
-  // ^^
-  // [analyzer] SYNTACTIC_ERROR.ILLEGAL_ASSIGNMENT_TO_NON_ASSIGNABLE
-  ++(a);
-  //  ^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_ASSIGNABLE_SELECTOR
-  // [cfe] Can't assign to a parenthesized expression.
-
-  // Neat palindrome expression. x is assignable, ((x)) is not.
-  var funcnuf = (x) => ((x))=((x)) <= (x);
-  //                   ^^^^^
-  // [analyzer] SYNTACTIC_ERROR.MISSING_ASSIGNABLE_SELECTOR
-  //                       ^
-  // [cfe] Can't assign to a parenthesized expression.
-}
diff --git a/tests/language_2/unsorted/bad_override_runtime_test.dart b/tests/language_2/unsorted/bad_override_runtime_test.dart
deleted file mode 100644
index 8475b1cf75e..00000000000
--- a/tests/language_2/unsorted/bad_override_runtime_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Fisk {
-  get fisk => null;
-
-  set fisk(x) {}
-
-
-  get hest => null;
-  set hest(x) {}
-
-  foo() {}
-  var field;
-  method() {}
-  nullary() {}
-}
-
-class Hest extends Fisk {
-
-
-
-
-}
-
-main() {
-  new Fisk();
-  new Hest();
-}
diff --git a/tests/language_2/unsorted/bad_override_test.dart b/tests/language_2/unsorted/bad_override_test.dart
deleted file mode 100644
index d823d771e43..00000000000
--- a/tests/language_2/unsorted/bad_override_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Fisk {
-  get fisk => null;
-  static
-  set fisk(x) {}
-  //  ^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] This static member conflicts with an instance member.
-
-  static
-  get hest => null;
-  //  ^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] This static member conflicts with an instance member.
-  set hest(x) {}
-
-  foo() {}
-  var field;
-  method() {}
-  nullary() {}
-}
-
-class Hest extends Fisk {
-  static foo() {}
-  //     ^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-  field() {}
-//^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_METHOD_AND_FIELD
-// [cfe] Can't declare a member that conflicts with an inherited one.
-  var method;
-  //  ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_FIELD_AND_METHOD
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-  nullary(x) {}
-//^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-// [cfe] The method 'Hest.nullary' has more required arguments than those of overridden method 'Fisk.nullary'.
-}
-
-main() {
-  new Fisk();
-  new Hest();
-}
diff --git a/tests/language_2/unsorted/bind_test.dart b/tests/language_2/unsorted/bind_test.dart
deleted file mode 100644
index 580c1e1f2dd..00000000000
--- a/tests/language_2/unsorted/bind_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Bound {
-  run() {
-    return 42;
-  }
-}
-
-void main() {
-  var runner = new Bound().run;
-  Expect.equals(42, runner());
-}
diff --git a/tests/language_2/unsorted/bootstrap_test.dart b/tests/language_2/unsorted/bootstrap_test.dart
deleted file mode 100644
index 32c440c8e01..00000000000
--- a/tests/language_2/unsorted/bootstrap_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class BootstrapTest {
-  static testMain() {
-    var obj = new Object();
-
-    return obj;
-  }
-}
-
-main() {
-  BootstrapTest.testMain();
-}
diff --git a/tests/language_2/unsorted/bottom_test.dart b/tests/language_2/unsorted/bottom_test.dart
deleted file mode 100644
index a3df620265e..00000000000
--- a/tests/language_2/unsorted/bottom_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  final f1 = () => throw null;
-  final f2 = () => null;
-  Expect.equals(f1.runtimeType, f2.runtimeType);
-
-  final Bottom = (<F>(F Function() f) => F)(() => throw null);
-  Expect.equals(Null, Bottom);
-}
diff --git a/tests/language_2/unsorted/branch_canonicalization_test.dart b/tests/language_2/unsorted/branch_canonicalization_test.dart
deleted file mode 100644
index a3b24641d95..00000000000
--- a/tests/language_2/unsorted/branch_canonicalization_test.dart
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that branch fusion correctly sets branch environment for comparisons
-// that require unboxing and does not fuse branches that can deoptimize.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-import "package:expect/expect.dart";
-
-var sideEffect = true;
-
-barDouble(a, b) {
-  sideEffect = false;
-  final result = (a == b);
-  sideEffect = !sideEffect;
-  return result;
-}
-
-fooDouble(a, b) => barDouble(a, b) ? 1 : 0;
-
-barMint(a, b) {
-  sideEffect = false;
-  final result = (a == b);
-  sideEffect = !sideEffect;
-  return result;
-}
-
-fooMint(a, b) => barMint(a, b) ? 1 : 0;
-
-class A {
-  operator ==(other) => identical(this, other);
-}
-
-class B extends A {}
-
-class C extends A {}
-
-barPoly(a, b) {
-  sideEffect = false;
-  final result = a == b;
-  sideEffect = !sideEffect;
-  return result;
-}
-
-fooPoly(a, b) => barPoly(a, b) ? 1 : 0;
-
-main() {
-  final a = 1.0;
-  final b = 0x4000000000000000; // 1 << 62
-  final x = new A(), y = new B(), z = new C();
-  for (var i = 0; i < 20; i++) {
-    Expect.equals(1, fooDouble(a, a));
-    Expect.isTrue(sideEffect);
-    Expect.equals(0, fooMint(b, 0));
-    Expect.isTrue(sideEffect);
-    Expect.equals(1, fooPoly(x, x));
-    Expect.equals(0, fooPoly(y, x));
-  }
-  Expect.equals(1, fooDouble(z, z));
-  Expect.isTrue(sideEffect);
-  Expect.equals(1, fooMint(z, z));
-  Expect.isTrue(sideEffect);
-  Expect.equals(1, fooPoly(z, z));
-  Expect.isTrue(sideEffect);
-}
diff --git a/tests/language_2/unsorted/branches_test.dart b/tests/language_2/unsorted/branches_test.dart
deleted file mode 100644
index d52e7393bdb..00000000000
--- a/tests/language_2/unsorted/branches_test.dart
+++ /dev/null
@@ -1,161 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for branches. Make sure that shortcuts work, even if they have
-// to jump over several expressions.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class BranchesTest {
-  static bool f() {
-    Expect.equals("Never reached", 0);
-    return true;
-  }
-
-  static void testMain() {
-    int checkPointCounter = 1;
-    int checkPoint1 = 0;
-    int checkPoint2 = 0;
-    int checkPoint3 = 0;
-    int checkPoint4 = 0;
-    int checkPoint5 = 0;
-    int checkPoint6 = 0;
-    int i = 0;
-    for (int i = 0; i < 2; i++) {
-      if (i == 0) {
-        checkPoint1 += checkPointCounter++;
-        if (true || // Test branch-if-true.
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f() ||
-            f()) {
-          checkPoint2 += checkPointCounter++;
-        }
-      } else {
-        // Test branch (jumping over the else branch).
-        checkPoint3 += checkPointCounter++;
-        if (false) {
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-          checkPoint4 = checkPointCounter++; // Never reached.
-        }
-      }
-      checkPoint5 += checkPointCounter++;
-    }
-    checkPoint6 += checkPointCounter++;
-    Expect.equals(1, checkPoint1);
-    Expect.equals(2, checkPoint2);
-    Expect.equals(4, checkPoint3);
-    Expect.equals(0, checkPoint4);
-    Expect.equals(8, checkPoint5);
-    Expect.equals(6, checkPoint6);
-  }
-}
-
-main() {
-  BranchesTest.testMain();
-}
diff --git a/tests/language_2/unsorted/callable_runtime_test.dart b/tests/language_2/unsorted/callable_runtime_test.dart
deleted file mode 100644
index 6745f859ae7..00000000000
--- a/tests/language_2/unsorted/callable_runtime_test.dart
+++ /dev/null
@@ -1,72 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-class X {
-  call() => 42;
-}
-
-class XX extends X {
-  XX.named();
-}
-
-class Y {
-  call(int x) => 87 + x;
-
-  static int staticMethod(int x) => x + 1;
-}
-
-class Z<T> {
-  final T value;
-  Z(this.value);
-  T call() => value;
-
-  static int staticMethod(int x) => x + 1;
-}
-
-typedef F(int x);
-typedef G(String y);
-typedef H();
-typedef T I<T>();
-
-main() {
-  X x = new X();
-  Function f = x; // Should pass checked mode test
-  Y y = new Y();
-  Function g = y; // Should pass checked mode test
-  F f0 = y; // Should pass checked mode test
-
-
-
-
-  Expect.equals(f(), 42);
-  Expect.equals(g(100), 187);
-
-  var z = new Z<int>(123);
-  Expect.equals(z(), 123);
-  Expect.equals((z as dynamic)(), 123);
-
-  Expect.equals(Y.staticMethod(6), 7);
-  Expect.equals(Z.staticMethod(6), 7);
-
-  var xx = new XX.named();
-  Expect.equals(xx(), 42);
-
-  H xx2 = new XX.named();
-  Expect.equals(xx2(), 42);
-
-  Expect.throwsTypeError(() {
-    F f2 = x as dynamic;
-  });
-
-  Expect.throwsTypeError(() {
-    G g1 = y as dynamic;
-  });
-}
diff --git a/tests/language_2/unsorted/callable_test.dart b/tests/language_2/unsorted/callable_test.dart
deleted file mode 100644
index 43fff135957..00000000000
--- a/tests/language_2/unsorted/callable_test.dart
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class X {
-  call() => 42;
-}
-
-class XX extends X {
-  XX.named();
-}
-
-class Y {
-  call(int x) => 87 + x;
-
-  static int staticMethod(int x) => x + 1;
-}
-
-class Z<T> {
-  final T value;
-  Z(this.value);
-  T call() => value;
-
-  static int staticMethod(int x) => x + 1;
-}
-
-typedef F(int x);
-typedef G(String y);
-typedef H();
-typedef T I<T>();
-
-main() {
-  X x = new X();
-  Function f = x; // Should pass checked mode test
-  Y y = new Y();
-  Function g = y; // Should pass checked mode test
-  F f0 = y; // Should pass checked mode test
-
-  F f1 = x;
-  //^
-  // [cfe] A value of type 'dynamic Function()' can't be assigned to a variable of type 'dynamic Function(int)'.
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-  G g0 = y;
-  //^
-  // [cfe] A value of type 'dynamic Function(int)' can't be assigned to a variable of type 'dynamic Function(String)'.
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-
-  Expect.equals(f(), 42);
-  Expect.equals(g(100), 187);
-
-  var z = new Z<int>(123);
-  Expect.equals(z(), 123);
-  Expect.equals((z as dynamic)(), 123);
-
-  Expect.equals(Y.staticMethod(6), 7);
-  Expect.equals(Z.staticMethod(6), 7);
-
-  var xx = new XX.named();
-  Expect.equals(xx(), 42);
-
-  H xx2 = new XX.named();
-  Expect.equals(xx2(), 42);
-
-  Expect.throwsTypeError(() {
-    F f2 = x as dynamic;
-  });
-
-  Expect.throwsTypeError(() {
-    G g1 = y as dynamic;
-  });
-}
diff --git a/tests/language_2/unsorted/cascaded_forwarding_stubs_test.dart b/tests/language_2/unsorted/cascaded_forwarding_stubs_test.dart
deleted file mode 100644
index 29fbe1fe29e..00000000000
--- a/tests/language_2/unsorted/cascaded_forwarding_stubs_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-class C {
-  void f(B x, B y) {}
-}
-
-abstract class I1 {
-  void f(covariant A x, B y);
-}
-
-// D contains a forwarding stub for f which ensures that `x` is type checked.
-class D extends C implements I1 {}
-
-abstract class I2 {
-  void f(B x, covariant A y);
-}
-
-// E contains a forwarding stub for f which ensures that `y` is type checked.
-class E extends D implements I2 {
-  void f(B x, B y);
-}
-
-main() {
-  E e = new E();
-  C c = e;
-  I1 i1 = e;
-  D d = e;
-  I2 i2 = e;
-  A a = new A();
-  B b = new B();
-  c.f(b, b); // No error
-  i1.f(b, b); // No error
-  d.f(b, b); // No error
-  i2.f(b, b); // No error
-  e.f(b, b); // No error
-  Expect.throwsTypeError(() {
-    i1.f(a, b);
-  });
-  Expect.throwsTypeError(() {
-    d.f(a, b);
-  });
-  Expect.throwsTypeError(() {
-    i2.f(b, a);
-  });
-  Expect.throwsTypeError(() {
-    e.f(a, b);
-  });
-  Expect.throwsTypeError(() {
-    e.f(b, a);
-  });
-}
diff --git a/tests/language_2/unsorted/cast2_test.dart b/tests/language_2/unsorted/cast2_test.dart
deleted file mode 100644
index c65855fed19..00000000000
--- a/tests/language_2/unsorted/cast2_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test 'expression as Type' casts.
-
-class C {
-  final int foo = 42;
-
-  int val = 0;
-  void inc() {
-    ++val;
-  }
-}
-
-class D extends C {
-  final int bar = 37;
-}
-
-main() {
-  C oc = new C();
-  D od = new D();
-
-  Expect.throwsNoSuchMethodError(() => (oc as dynamic).bar);
-
-  // Casts should always evaluate the left-hand side, if only for its effects.
-  oc.inc() as dynamic;
-  Expect.equals(1, oc.val);
-  oc.inc() as Object;
-  Expect.equals(2, oc.val);
-}
diff --git a/tests/language_2/unsorted/cast_test.dart b/tests/language_2/unsorted/cast_test.dart
deleted file mode 100644
index f655690e4fa..00000000000
--- a/tests/language_2/unsorted/cast_test.dart
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test 'expression as Type' casts.
-
-class C {
-  final int foo = 42;
-}
-
-class D extends C {
-  final int bar = 37;
-}
-
-Object createC() => new C();
-Object createD() => new D();
-Object getNull() => null;
-Object createList() => <int>[2];
-Object createInt() => 87;
-Object createString() => "a string";
-
-main() {
-  Object oc = createC();
-  Object od = createD();
-  Object on = getNull();
-  Object ol = createList();
-  Object oi = createInt();
-  Object os = createString();
-
-  Expect.equals(42, (oc as C).foo);
-  Expect.equals(42, (od as C).foo);
-  Expect.equals(42, (od as D).foo);
-  Expect.equals(37, (od as D).bar);
-  Expect.equals(37, ((od as C) as D).bar);
-  (oc as D).foo; // //# 01: runtime error
-  (on as D).toString();
-  (on as D).foo; // //# 02: runtime error
-  (on as C).foo; // //# 03: runtime error
-  oc.foo; // //# 04: compile-time error
-  od.foo; // //# 05: compile-time error
-  (on as Object).toString();
-  (oc as Object).toString();
-  (od as Object).toString();
-  (on as dynamic).toString();
-  (on as dynamic).foo; // //# 07: runtime error
-  (oc as dynamic).foo;
-  (od as dynamic).foo;
-  (oc as dynamic).bar; // //# 08: runtime error
-  (od as dynamic).bar;
-  C c = oc as C;
-  c = od as C;
-  c = oc;
-  D d = od as D;
-  d = oc as D; // //# 10: runtime error
-  d = od;
-
-  (ol as List)[0];
-  (ol as List<int>)[0];
-  (ol as dynamic)[0];
-  (ol as String).length; // //# 12: runtime error
-  int x = (ol as List<int>)[0];
-  (ol as List<int>)[0] = (oi as int);
-
-  (os as String).length;
-  (os as dynamic).length;
-  (oi as String).length; // //# 13: runtime error
-  (os as List).length; // //# 14: runtime error
-
-  (oi as int) + 2;
-  (oi as List).length; // //# 15: runtime error
-}
diff --git a/tests/language_2/unsorted/check_member_static_runtime_1_test.dart b/tests/language_2/unsorted/check_member_static_runtime_1_test.dart
deleted file mode 100644
index 05f92a4ded1..00000000000
--- a/tests/language_2/unsorted/check_member_static_runtime_1_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class A {
-  static var a;
-  var b;
-}
-
-class B extends A {}
-
-class C extends B {
-  var a;
-
-}
-
-void main() {
-  new C();
-}
diff --git a/tests/language_2/unsorted/check_member_static_runtime_test.dart b/tests/language_2/unsorted/check_member_static_runtime_test.dart
deleted file mode 100644
index 06df24db19c..00000000000
--- a/tests/language_2/unsorted/check_member_static_runtime_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class A {
-  static var a;
-  var b;
-}
-
-class B extends A {}
-
-class C extends B {
-
-
-}
-
-void main() {
-  new C();
-}
diff --git a/tests/language_2/unsorted/check_member_static_test.dart b/tests/language_2/unsorted/check_member_static_test.dart
deleted file mode 100644
index dc7b84502c7..00000000000
--- a/tests/language_2/unsorted/check_member_static_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  static var a;
-  var b;
-}
-
-class B extends A {}
-
-class C extends B {
-  var a;
-  static var b;
-  //         ^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-}
-
-void main() {
-  new C();
-}
diff --git a/tests/language_2/unsorted/check_method_override_runtime_test.dart b/tests/language_2/unsorted/check_method_override_runtime_test.dart
deleted file mode 100644
index c4b4a55a845..00000000000
--- a/tests/language_2/unsorted/check_method_override_runtime_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class A {
-  f([var x]) {}
-  foo(var a, [x, y]) {}
-}
-
-class C extends A {
-
-
-}
-
-main() {
-  new A().foo(2);
-  new C().foo(1);
-}
diff --git a/tests/language_2/unsorted/check_method_override_test.dart b/tests/language_2/unsorted/check_method_override_test.dart
deleted file mode 100644
index d2d439ea90c..00000000000
--- a/tests/language_2/unsorted/check_method_override_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  f([var x]) {}
-  foo(var a, [x, y]) {}
-}
-
-class C extends A {
-  f() {}
-//^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-// [cfe] The method 'C.f' has fewer positional arguments than those of overridden method 'A.f'.
-  foo(var a, [x]) {}
-//^^^
-// [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE
-// [cfe] The method 'C.foo' has fewer positional arguments than those of overridden method 'A.foo'.
-}
-
-main() {
-  new A().foo(2);
-  new C().foo(1);
-}
diff --git a/tests/language_2/unsorted/checked_method_error_order_test.dart b/tests/language_2/unsorted/checked_method_error_order_test.dart
deleted file mode 100644
index 7419c2070ea..00000000000
--- a/tests/language_2/unsorted/checked_method_error_order_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-import "package:expect/expect.dart";
-
-class Bar {
-  foo({int i, String a}) {
-    print(i);
-    print(a);
-  }
-}
-
-main() {
-  bool checkedMode = false;
-  assert((checkedMode = true));
-  // Test that in checked mode, we are checking the type of optional parameters
-  // in the correct order (aka, don't check the type of parameter 'a' first).
-  if (checkedMode) {
-    dynamic x = 'e';
-    dynamic y = 3;
-    Expect.throws(() => new Bar().foo(i: x, a: y), (e) {
-      if (e is TypeError) {
-        var m = e.toString();
-        return m.contains("is not a subtype of type 'int'") ||
-            m.contains(
-                "Expected a value of type 'int', but got one of type 'String'");
-      }
-      return false;
-    });
-  }
-}
diff --git a/tests/language_2/unsorted/combiner_type_lookup_indexed_test.dart b/tests/language_2/unsorted/combiner_type_lookup_indexed_test.dart
deleted file mode 100644
index ee2afc342d3..00000000000
--- a/tests/language_2/unsorted/combiner_type_lookup_indexed_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {}
-
-class B extends A {
-  B operator +(int i) => this;
-}
-
-class C {
-  B operator [](int i) => new B();
-
-  void operator []=(int i, A value) {}
-}
-
-main() {
-  new C()[0] += 1;
-}
diff --git a/tests/language_2/unsorted/combiner_type_lookup_instance_test.dart b/tests/language_2/unsorted/combiner_type_lookup_instance_test.dart
deleted file mode 100644
index 497d7a6331a..00000000000
--- a/tests/language_2/unsorted/combiner_type_lookup_instance_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {}
-
-class B extends A {
-  B operator +(int i) => this;
-}
-
-class C {
-  B get property => new B();
-
-  void set property(A value) {}
-}
-
-main() {
-  new C().property += 1;
-}
diff --git a/tests/language_2/unsorted/combiner_type_lookup_static_test.dart b/tests/language_2/unsorted/combiner_type_lookup_static_test.dart
deleted file mode 100644
index 8979b0ed8e3..00000000000
--- a/tests/language_2/unsorted/combiner_type_lookup_static_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {}
-
-class B extends A {
-  B operator +(int i) => this;
-}
-
-class C {
-  static B get staticProperty => new B();
-
-  static void set staticProperty(A value) {}
-}
-
-main() {
-  C.staticProperty += 1;
-}
diff --git a/tests/language_2/unsorted/combiner_type_lookup_top_level_test.dart b/tests/language_2/unsorted/combiner_type_lookup_top_level_test.dart
deleted file mode 100644
index 4a1b2765306..00000000000
--- a/tests/language_2/unsorted/combiner_type_lookup_top_level_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {}
-
-class B extends A {
-  B operator +(int i) => this;
-}
-
-B get topLevel => new B();
-
-void set topLevel(A value) {}
-
-main() {
-  topLevel += 1;
-}
diff --git a/tests/language_2/unsorted/condition_bailout_test.dart b/tests/language_2/unsorted/condition_bailout_test.dart
deleted file mode 100644
index b0d39d3141e..00000000000
--- a/tests/language_2/unsorted/condition_bailout_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program testing closures.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  operator -() => this;
-
-  foo(x) {
-    -a;
-    if (x) return true;
-    return false;
-  }
-
-  loop1(x) {
-    -a;
-    while (x) return true;
-    return false;
-  }
-
-  loop2(x) {
-    -a;
-    for (; x;) return true;
-    return false;
-  }
-
-  loop3(x) {
-    -a;
-    var i = 0;
-    do {
-      if (i++ == 1) return false;
-    } while (!x);
-    return true;
-  }
-}
-
-var a;
-
-main() {
-  a = new A();
-  Expect.isTrue(a.foo(true));
-  Expect.isTrue(a.loop1(true));
-  Expect.isTrue(a.loop2(true));
-  Expect.isTrue(a.loop3(true));
-}
diff --git a/tests/language_2/unsorted/context2_test.dart b/tests/language_2/unsorted/context2_test.dart
deleted file mode 100644
index 1ac6c38d9bd..00000000000
--- a/tests/language_2/unsorted/context2_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for capturing.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Regression test for issue 5991015.
-
-class V {
-  notCalled(Function x) {
-    return x();
-  }
-
-  foofoo(x) {
-    return x;
-  }
-
-  hoop(input, n) {
-    while (n-- > 0) {
-      Expect.equals(5, input);
-      continue; // This continue statement must properly unchain the context.
-      switch (input) {
-        case 3:
-          var values = foofoo;
-          notCalled(() => values(input));
-      }
-    }
-  }
-}
-
-main() {
-  new V().hoop(5, 3);
-}
diff --git a/tests/language_2/unsorted/context_args_with_defaults_test.dart b/tests/language_2/unsorted/context_args_with_defaults_test.dart
deleted file mode 100644
index d9dd2a1c529..00000000000
--- a/tests/language_2/unsorted/context_args_with_defaults_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class ContextArgsWithDefaultsTest {
-  static void testMain() {
-    crasher(1, 'foo')();
-  }
-
-  static crasher(int fixed, [String optional = '']) {
-    return () {
-      Expect.equals(1, fixed);
-      Expect.equals('foo', optional);
-    };
-  }
-}
-
-main() {
-  ContextArgsWithDefaultsTest.testMain();
-}
diff --git a/tests/language_2/unsorted/context_test.dart b/tests/language_2/unsorted/context_test.dart
deleted file mode 100644
index eb8a0d5faa5..00000000000
--- a/tests/language_2/unsorted/context_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for capturing.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class ContextTest {
-  static foo(Function f) {
-    return f();
-  }
-
-  static void testMain() {
-    int x = 42;
-    bar() {
-      return x;
-    }
-
-    x++;
-    Expect.equals(43, foo(bar));
-  }
-}
-
-main() {
-  ContextTest.testMain();
-}
diff --git a/tests/language_2/unsorted/core_type_check_test.dart b/tests/language_2/unsorted/core_type_check_test.dart
deleted file mode 100644
index e2e85f7c436..00000000000
--- a/tests/language_2/unsorted/core_type_check_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-check(value, expectComparable, expectPattern) {
-  Expect.equals(expectComparable, value is Comparable);
-  Expect.equals(expectPattern, value is Pattern);
-}
-
-int inscrutable(int x) => x == 0 ? 0 : x | inscrutable(x & (x - 1));
-
-class A implements Comparable {
-  int compareTo(o) => 0;
-}
-
-class B {}
-
-class C implements Pattern {
-  matchAsPrefix(String s, [int start = 0]) => null;
-  allMatches(String s, [int start = 0]) => null;
-}
-
-class D implements Pattern, Comparable {
-  int compareTo(o) => 0;
-  matchAsPrefix(String s, [int start = 0]) => null;
-  allMatches(String s, [int start = 0]) => null;
-}
-
-main() {
-  var things = [
-    [],
-    4,
-    4.2,
-    'foo',
-    new Object(),
-    new A(),
-    new B(),
-    new C(),
-    new D()
-  ];
-
-  check(things[inscrutable(0)], false, false); // List
-  check(things[inscrutable(1)], true, false); // int
-  check(things[inscrutable(2)], true, false); // num
-  check(things[inscrutable(3)], true, true); // string
-  check(things[inscrutable(4)], false, false); // Object
-  check(things[inscrutable(5)], true, false); // A
-  check(things[inscrutable(6)], false, false); // B
-  check(things[inscrutable(7)], false, true); // C
-  check(things[inscrutable(8)], true, true); // D
-}
diff --git a/tests/language_2/unsorted/cyclic_default_values_test.dart b/tests/language_2/unsorted/cyclic_default_values_test.dart
deleted file mode 100644
index 32c3b686a15..00000000000
--- a/tests/language_2/unsorted/cyclic_default_values_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-bar([x = foo]) => x((_) => "bar");
-foo([y = bar]) => y((_) => "foo");
-
-foo2({f: bar2}) => f(f: ({f}) => "foo2");
-bar2({f: foo2}) => f(f: ({f}) => "bar2");
-
-main() {
-  var f = bar;
-  Expect.equals("bar", Function.apply(f, []));
-  Expect.equals("main", Function.apply(f, [(_) => "main"]));
-
-  var f_2 = bar2;
-  Expect.equals("bar2", Function.apply(f_2, []));
-  Expect.equals("main2", Function.apply(f_2, [], {#f: ({f}) => "main2"}));
-}
diff --git a/tests/language_2/unsorted/cyclic_type2_test.dart b/tests/language_2/unsorted/cyclic_type2_test.dart
deleted file mode 100644
index 4eb23300475..00000000000
--- a/tests/language_2/unsorted/cyclic_type2_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests self referencing types.
-
-import "package:expect/expect.dart";
-
-class Base<U, V> {
-  get u => U;
-  get v => V;
-}
-
-class Derived1<U, V>
-    extends Base<Derived1<U, V>, Derived1<Derived2<V, U>, Derived2>> {}
-
-class Derived2<U, V>
-    extends Base<Derived2<U, V>, Derived2<Derived1<V, U>, Derived1>> {}
-
-main() {
-  var d = new Derived1<Derived1, Derived2>();
-  Expect.equals(
-      "Derived1<Derived1<dynamic, dynamic>, Derived2<dynamic, dynamic>>",
-      d.u.toString());
-  Expect.equals(
-      "Derived1<Derived2<Derived2<dynamic, dynamic>, "
-      "Derived1<dynamic, dynamic>>, Derived2<dynamic, dynamic>>",
-      d.v.toString());
-  Expect.isTrue(d is Derived1<Derived1, Derived2>);
-  Expect.isFalse(d is Derived1<Derived1, Derived1>);
-  Expect.isTrue(d is Base<Derived1<Derived1, Derived2>,
-      Derived1<Derived2<Derived2, Derived1>, Derived2>>);
-  Expect.isFalse(d is Base<Derived1<Derived1, Derived2>,
-      Derived1<Derived2<Derived2, Derived2>, Derived2>>);
-}
diff --git a/tests/language_2/unsorted/cyclic_type_test.dart b/tests/language_2/unsorted/cyclic_type_test.dart
deleted file mode 100644
index dc15b107333..00000000000
--- a/tests/language_2/unsorted/cyclic_type_test.dart
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests self referencing types.
-
-import "package:expect/expect.dart";
-
-@pragma("vm:entry-point")  // Prevent obfuscation
-class Base<T> {
-  get t => T;
-}
-
-// Derived<T> is contractive.
-@pragma("vm:entry-point")  // Prevent obfuscation
-class Derived<T> extends Base<Derived<T>> {} // //# 00: ok
-
-// Derived<T> is contractive.
-@pragma("vm:entry-point")  // Prevent obfuscation
-class Derived<T> extends Base<Derived<Derived<int>>> {} // //# 01: ok
-
-// Derived<T> is non-contractive.
-@pragma("vm:entry-point")  // Prevent obfuscation
-class Derived<T> extends Base<Derived<Derived<T>>> {} // //# 02: ok
-
-// Derived1<U> and Derived2<V> are contractive.
-@pragma("vm:entry-point")  // Prevent obfuscation
-class Derived1<U> extends Base<Derived2<U>> {} //  //# 03: ok
-@pragma("vm:entry-point")  // Prevent obfuscation
-class Derived2<V> extends Base<Derived1<V>> {} //  //# 03: ok
-
-// Derived1<U> and Derived2<V> are non-contractive.
-@pragma("vm:entry-point")  // Prevent obfuscation
-class Derived1<U> extends Base<Derived2<U>> {} //  //# 04: ok
-@pragma("vm:entry-point")  // Prevent obfuscation
-class Derived2<V> extends Base<Derived1<Derived2<V>>> {} //  //# 04: ok
-
-main() {
-  // In the tests below we test that we get "int" and "bool" when calling
-  // toString() on the int and bool type respectively. This is not required
-  // behavior. However, we want to keep the original names for the most common
-  // core types so we make sure to handle these specifically in the compiler.
-
-  var d;
-  d = new Derived(); // //# 00: continued
-  Expect.equals("Derived<dynamic>", d.t.toString()); // //# 00: continued
-  d = new Derived<bool>(); // //# 00: continued
-  Expect.equals("Derived<bool>", d.t.toString()); // //# 00: continued
-  d = new Derived<Derived>(); // //# 00: continued
-  Expect.equals("Derived<Derived<dynamic>>", d.t.toString()); // //# 00: continued
-
-  d = new Derived(); // //# 01: continued
-
-  Expect.equals("Derived<Derived<int>>", d.t.toString()); // //# 01: continued
-  d = new Derived<bool>(); // //# 01: continued
-  Expect.equals("Derived<Derived<int>>", d.t.toString()); // //# 01: continued
-  d = new Derived<Derived>(); // //# 01: continued
-  Expect.equals("Derived<Derived<int>>", d.t.toString()); // //# 01: continued
-
-  d = new Derived(); // //# 02: continued
-  Expect.equals("Derived<Derived<dynamic>>", d.t.toString()); // //# 02: continued
-  d = new Derived<bool>(); // //# 02: continued
-  Expect.equals("Derived<Derived<bool>>", d.t.toString()); // //# 02: continued
-  d = new Derived<Derived>(); // //# 02: continued
-  Expect.equals("Derived<Derived<Derived<dynamic>>>", d.t.toString()); // //# 02: continued
-
-  d = new Derived1(); // //# 03: continued
-  Expect.equals("Derived2<dynamic>", d.t.toString()); // //# 03: continued
-  d = new Derived2(); // //# 03: continued
-  Expect.equals("Derived1<dynamic>", d.t.toString()); // //# 03: continued
-  d = new Derived2<Derived1<int>>(); // //# 03: continued
-  Expect.equals("Derived1<Derived1<int>>", d.t.toString()); // //# 03: continued
-
-  d = new Derived1(); // //# 04: continued
-  Expect.equals("Derived2<dynamic>", d.t.toString()); // //# 04: continued
-  d = new Derived2(); // //# 04: continued
-  Expect.equals("Derived1<Derived2<dynamic>>", d.t.toString()); // //# 04: continued
-  d = new Derived2<Derived1<int>>(); // //# 04: continued
-  Expect.equals("Derived1<Derived2<Derived1<int>>>", d.t.toString()); // //# 04: continued
-}
diff --git a/tests/language_2/unsorted/default_implementation2_test.dart b/tests/language_2/unsorted/default_implementation2_test.dart
deleted file mode 100644
index f279d818f6d..00000000000
--- a/tests/language_2/unsorted/default_implementation2_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test to verify incompatible constructor types
-
-// @dart = 2.9
-
-abstract class Point {
-  factory Point(int x, int y) = PointImplementation; //# 01: ok
-  factory Point(x, y) = PointImplementation; //# 02: compile-time error
-}
-
-class PointImplementation implements Point {
-   PointImplementation(int x, int y) {}
-}
-
-main() {
-  new Point(1, 2); //# 01: continued
-  new Point(1, 2); //# 02: continued
-}
diff --git a/tests/language_2/unsorted/default_implementation_test.dart b/tests/language_2/unsorted/default_implementation_test.dart
deleted file mode 100644
index 945f6439388..00000000000
--- a/tests/language_2/unsorted/default_implementation_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test to verify that factory classes are working.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class Point {
-  factory Point(int x, int y) = PointImplementation;
-
-  final int x;
-  final int y;
-}
-
-class PointImplementation implements Point {
-  const PointImplementation(int x, int y)
-      : this.x = x,
-        this.y = y;
-  final int x;
-  final int y;
-}
-
-class DefaultImplementationTest {
-  static void testMain() {
-    Point point = new Point(4, 2);
-    Expect.equals(4, point.x);
-    Expect.equals(2, point.y);
-  }
-}
-
-main() {
-  DefaultImplementationTest.testMain();
-}
diff --git a/tests/language_2/unsorted/default_init_test.dart b/tests/language_2/unsorted/default_init_test.dart
deleted file mode 100644
index 3513254e542..00000000000
--- a/tests/language_2/unsorted/default_init_test.dart
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Tests static and instance fields initialization.
-class DefaultInitTest {
-  static testMain() {
-    Expect.equals(0, A.a);
-    Expect.equals(2, A.b);
-    Expect.equals(null, A.c);
-
-    A a1 = new A(42);
-    Expect.equals(42, a1.d);
-    Expect.equals(null, a1.e);
-
-    A a2 = new A.named(43);
-    Expect.equals(null, a2.d);
-    Expect.equals(43, a2.e);
-
-    Expect.equals(42, B.instance.x);
-    Expect.equals(3, C.instance.z);
-  }
-}
-
-class A {
-  static const int a = 0;
-  static const int b = 2;
-  static int c;
-  int d;
-  int e;
-
-  A(int val) {
-    d = val;
-  }
-
-  A.named(int val) {
-    e = val;
-  }
-}
-
-// The following tests cover cases described in b/4101270
-
-class B {
-  static const B instance = const B();
-  // by putting this field after the static initializer above, the JS code gen
-  // was calling the constructor before the setter of this property was defined.
-  final int x;
-  const B() : this.x = (41 + 1);
-}
-
-class C {
-  // forward reference to another class
-  static const D instance = const D();
-  C() {}
-}
-
-class D {
-  const D() : this.z = 3;
-  final int z;
-}
-
-main() {
-  DefaultInitTest.testMain();
-}
diff --git a/tests/language_2/unsorted/deny_listed_test.dart b/tests/language_2/unsorted/deny_listed_test.dart
deleted file mode 100644
index ba5775cdcdf..00000000000
--- a/tests/language_2/unsorted/deny_listed_test.dart
+++ /dev/null
@@ -1,81 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test checking that static/instance field shadowing do not conflict.
-
-// @dart = 2.9
-
-// Test that certain interfaces/classes are denylisted from being
-// implemented or extended.
-
-// bool.
-class MyBool implements bool {} //                    //# 01: compile-time error
-abstract class MyBoolInterface implements bool default F { // //# 02: syntax error
-  MyBoolInterface(); //                               //# 02: continued
-} //                                                  //# 02: continued
-
-// num.
-class MyNum implements num {} //                      //# 03: compile-time error
-abstract class MyNumInterface implements num default F { //   //# 04: syntax error
-  MyNumInterface(); //                                //# 04: continued
-} //                                                  //# 04: continued
-
-// int.
-class MyInt implements int {} //                      //# 05: compile-time error
-abstract class MyIntInterface implements int default F { //   //# 06: syntax error
-  MyIntInterface(); //                                //# 06: continued
-} //                                                  //# 06: continued
-
-// double.
-class MyDouble implements double {} //                    //# 07: compile-time error
-abstract class MyDoubleInterface implements double default F { // //# 08: syntax error
-  MyDoubleInterface(); //                                 //# 08: continued
-} //                                                      //# 08: continued
-
-// String.
-class MyString implements String {} //                    //# 09: compile-time error
-abstract class MyStringInterface implements String default F { // //# 10: syntax error
-  MyStringInterface(); //                                 //# 10: continued
-} //                                                      //# 10: continued
-
-// Function.
-class MyFunction implements Function {}
-
-class MyOtherFunction extends Function {}
-abstract class MyFunctionInterface implements Function default F { // //# 12: syntax error
-  MyFunctionInterface(); //                                   //# 12: continued
-} //                                                          //# 12: continued
-
-// dynamic.
-class MyDynamic implements dynamic {} //                     //# 13: compile-time error
-abstract class MyDynamicInterface implements dynamic default F { //  //# 14: syntax error
-  MyDynamicInterface(); //                                   //# 14: continued
-} //                                                         //# 14: continued
-
-class F {
-  factory MyBoolInterface() { return null; } //     //# 02: continued
-  factory MyNumInterface() { return null; } //      //# 04: continued
-  factory MyIntInterface() { return null; } //      //# 06: continued
-  factory MyDoubleInterface() { return null; } //   //# 08: continued
-  factory MyStringInterface() { return null; } //   //# 10: continued
-  factory MyFunctionInterface() { return null; } // //# 12: continued
-  factory MyDynamicInterface() { return null; } //  //# 14: continued
-}
-
-main() {
-  new MyBool(); //             //# 01: continued
-  new MyBoolInterface(); //    //# 02: continued
-  new MyNum(); //              //# 03: continued
-  new MyNumInterface(); //     //# 04: continued
-  new MyInt(); //              //# 05: continued
-  new MyIntInterface(); //     //# 06: continued
-  new MyDouble(); //           //# 07: continued
-  new MyDoubleInterface(); //  //# 08: continued
-  new MyString(); //           //# 09: continued
-  new MyStringInterface(); //  //# 10: continued
-  new MyFunction();
-  new MyOtherFunction();
-  new MyFunctionInterface(); //# 12: continued
-  new MyDynamic(); //          //# 13: continued
-  new MyDynamicInterface(); // //# 14: continued
-}
diff --git a/tests/language_2/unsorted/disassemble_test.dart b/tests/language_2/unsorted/disassemble_test.dart
deleted file mode 100644
index 65cc56c857a..00000000000
--- a/tests/language_2/unsorted/disassemble_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests proper object recognition in disassembler.
-import 'dart:async';
-import 'dart:io';
-import "package:expect/expect.dart";
-
-Future runBinary(String binary, List<String> arguments) async {
-  print("+ $binary " + arguments.join(" "));
-  final result = await Process.run(binary, arguments);
-  return result;
-}
-
-f(x) {
-  return "foo";
-}
-
-Future<void> main(List<String> args) async {
-  if (args.contains('--child')) {
-    print(f(0));
-    return;
-  }
-  if (Platform.executable.contains("Product")) {
-    return; // No disassembler in product mode.
-  }
-
-  final result = await runBinary(Platform.executable, [
-    '--no-sound-null-safety',
-    '--disassemble',
-    Platform.script.toFilePath(),
-    '--child'
-  ]);
-  Expect.equals(0, result.exitCode);
-}
diff --git a/tests/language_2/unsorted/efficient_length_warning_test.dart b/tests/language_2/unsorted/efficient_length_warning_test.dart
deleted file mode 100644
index 78192bb32c4..00000000000
--- a/tests/language_2/unsorted/efficient_length_warning_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Third dart test program.
-
-// @dart = 2.9
-
-import "dart:math";
-
-main() {
-  // This should no longer cause a warning because the least-upper-bound
-  // of List<int> and Set<int> is Object.
-  // The LUB is now EfficientLengthIterable and it extends Iterable.
-  var x = (new Random().nextBool() // Unpredictable condition.
-          ? <int>[1]
-          : new Set<int>.from([1]))
-      .first;
-  if (x != 1) throw "Wat?";
-}
diff --git a/tests/language_2/unsorted/emit_const_fields_test.dart b/tests/language_2/unsorted/emit_const_fields_test.dart
deleted file mode 100644
index 641ea1da488..00000000000
--- a/tests/language_2/unsorted/emit_const_fields_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test that used static consts are emitted.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Guide {
-  static const LTUAE = 42;
-  static const TITLE = "Life, the Universe and Everything";
-  static const EARTH = const {
-    "Sector": "ZZ9 Plural Z Alpha",
-    "Status": const ["Scheduled for demolition", "1978-03-08"],
-    "Description": "Mostly harmless"
-  };
-}
-
-main() {
-  Expect.isTrue(42 == Guide.LTUAE);
-  Expect.isTrue("1978-03-08" == (Guide.EARTH["Status"] as List)[1]);
-}
diff --git a/tests/language_2/unsorted/expect_test.dart b/tests/language_2/unsorted/expect_test.dart
deleted file mode 100644
index d1df5bc1cb2..00000000000
--- a/tests/language_2/unsorted/expect_test.dart
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Testing the Expect class.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class ExpectTest {
-  static testEquals(a) {
-    try {
-      Expect.equals("AB", a, "within testEquals");
-    } on ExpectException catch (msg) {
-      print(msg);
-      return;
-    }
-    Expect.equals("AB", "${a}B");
-    throw "Expect.equals did not fail";
-  }
-
-  static testIsTrue(f) {
-    try {
-      Expect.isTrue(f);
-    } on ExpectException catch (msg) {
-      print(msg);
-      return;
-    }
-    Expect.isFalse(f);
-    throw "Expect.isTrue did not fail";
-  }
-
-  static testIsFalse(t) {
-    try {
-      Expect.isFalse(t);
-    } on ExpectException catch (msg) {
-      print(msg);
-      return;
-    }
-    Expect.isTrue(t);
-    throw "Expect.isFalse did not fail";
-  }
-
-  static testIdentical(a) {
-    var ab = a + "B";
-    try {
-      Expect.identical("AB", ab);
-    } on ExpectException catch (msg) {
-      print(msg);
-      return;
-    }
-    Expect.equals("AB", ab);
-    throw "Expect.identical did not fail";
-  }
-
-  static testFail() {
-    try {
-      Expect.fail("fail now");
-    } on ExpectException catch (msg) {
-      print(msg);
-      return;
-    }
-    throw "Expect.fail did not fail";
-  }
-
-  static void testMain() {
-    testEquals("A");
-    testIsTrue(false);
-    testIsTrue(1);
-    testIsFalse(true);
-    testIsFalse(0);
-    testIdentical("A");
-    testFail();
-  }
-}
-
-main() {
-  ExpectTest.testMain();
-}
diff --git a/tests/language_2/unsorted/extend_type_parameter_test.dart b/tests/language_2/unsorted/extend_type_parameter_test.dart
deleted file mode 100644
index 10f1817a6ce..00000000000
--- a/tests/language_2/unsorted/extend_type_parameter_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Extending a type parameter is not allowed.
-
-abstract class A<T> extends T {} // //# 00: compile-time error
-class A<T> extends T {} // //# 01: compile-time error
-
-main() {
-  A a = new A(); // //# 00: compile-time error
-  A a = new A(); // //# 01: continued
-}
diff --git a/tests/language_2/unsorted/extends_test.dart b/tests/language_2/unsorted/extends_test.dart
deleted file mode 100644
index 787552e3cc2..00000000000
--- a/tests/language_2/unsorted/extends_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library ExtendsTestMain;
-
-import "extends_test_lib.dart";
-import "package:expect/expect.dart";
-
-// S should extend class A from below, not the one imported
-// from the library.
-class S extends A {}
-
-class A {
-  var y = "class A from main script";
-}
-
-main() {
-  var s = new S();
-  Expect.equals("class A from main script", s.y);
-}
diff --git a/tests/language_2/unsorted/extends_test_lib.dart b/tests/language_2/unsorted/extends_test_lib.dart
deleted file mode 100644
index b34ac7a18ca..00000000000
--- a/tests/language_2/unsorted/extends_test_lib.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library ExtendsTestLib;
-
-class A {
-  var y = "class A from library";
-}
diff --git a/tests/language_2/unsorted/external_runtime_test.dart b/tests/language_2/unsorted/external_runtime_test.dart
deleted file mode 100644
index eca7602057b..00000000000
--- a/tests/language_2/unsorted/external_runtime_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Bar {
-  Bar(val);
-}
-
-class Foo {
-  var x;
-  f() {}
-
-  Foo() : x = 0;
-
-  // fields can't be declared external
-
-
-
-
-
-
-
-
-
-
-
-
-
-}
-
-
-
-
-main() {
-  // Ensure Foo class is compiled.
-  var foo = new Foo();
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-}
diff --git a/tests/language_2/unsorted/external_test.dart b/tests/language_2/unsorted/external_test.dart
deleted file mode 100644
index 56c47026ad6..00000000000
--- a/tests/language_2/unsorted/external_test.dart
+++ /dev/null
@@ -1,106 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Bar {
-  Bar(val);
-}
-
-class Foo {
-//    ^
-// [cfe] The non-abstract class 'Foo' is missing implementations for these members:
-  var x;
-  f() {}
-
-  Foo() : x = 0;
-
-  // fields can't be declared external
-  external var x01;
-//^^^^^^^^
-// [analyzer] SYNTACTIC_ERROR.EXTERNAL_FIELD
-// [cfe] Fields can't be declared to be 'external'.
-  external int x02;
-//^^^^^^^^
-// [analyzer] SYNTACTIC_ERROR.EXTERNAL_FIELD
-// [cfe] Fields can't be declared to be 'external'.
-
-  external f11() { }
-  //             ^
-  // [analyzer] SYNTACTIC_ERROR.EXTERNAL_METHOD_WITH_BODY
-  // [cfe] An external or native method can't have a body.
-  external f12() => 1;
-  //             ^^
-  // [analyzer] SYNTACTIC_ERROR.EXTERNAL_METHOD_WITH_BODY
-  // [cfe] An external or native method can't have a body.
-  //                ^
-  // [cfe] An external or native method can't have a body.
-  static external f14();
-  //     ^^^^^^^^
-  // [analyzer] SYNTACTIC_ERROR.MODIFIER_OUT_OF_ORDER
-  // [cfe] The modifier 'external' should be before the modifier 'static'.
-  int external f16();
-  //  ^^^^^^^^
-  // [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-  // [cfe] Expected ';' after this.
-  //           ^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONCRETE_CLASS_WITH_ABSTRACT_MEMBER
-
-  external Foo.n21(val) : x = 1;
-  //                    ^
-  // [analyzer] SYNTACTIC_ERROR.EXTERNAL_CONSTRUCTOR_WITH_INITIALIZER
-  // [cfe] An external constructor can't have any initializers.
-  external Foo.n22(val) { x = 1; }
-  //                    ^
-  // [analyzer] SYNTACTIC_ERROR.EXTERNAL_METHOD_WITH_BODY
-  // [cfe] An external or native method can't have a body.
-  external factory Foo.n23(val) => new Foo();
-  //                            ^^
-  // [analyzer] SYNTACTIC_ERROR.EXTERNAL_FACTORY_WITH_BODY
-  // [cfe] External factories can't have a body.
-  //                               ^
-  // [cfe] An external or native method can't have a body.
-  external Foo.n24(this.x);
-  //                    ^
-  // [cfe] An external constructor can't initialize fields.
-  external factory Foo.n25(val) = Bar;
-  //                            ^
-  // [analyzer] SYNTACTIC_ERROR.EXTERNAL_FACTORY_REDIRECTION
-  // [cfe] A redirecting factory can't be external.
-  //                              ^^^
-  // [analyzer] COMPILE_TIME_ERROR.REDIRECT_TO_INVALID_RETURN_TYPE
-  // [cfe] The constructor function type 'Bar Function(dynamic)' isn't a subtype of 'Foo Function(dynamic)'.
-}
-
-external int t06(int i) { }
-// [error column 1, length 8]
-// [analyzer] SYNTACTIC_ERROR.EXTERNAL_METHOD_WITH_BODY
-// [cfe] An external or native method can't have a body.
-//                      ^
-// [cfe] An external or native method can't have a body.
-external int t07(int i) => i + 1;
-// [error column 1, length 8]
-// [analyzer] SYNTACTIC_ERROR.EXTERNAL_METHOD_WITH_BODY
-// [cfe] An external or native method can't have a body.
-//                         ^
-// [cfe] An external or native method can't have a body.
-
-main() {
-  // Ensure Foo class is compiled.
-  var foo = new Foo();
-
-  new Foo().f11();
-  new Foo().f12();
-  Foo.f14();
-  new Foo().f16();
-
-  new Foo.n21(1);
-  new Foo.n22(1);
-  new Foo.n23(1);
-  new Foo.n24(1);
-  new Foo.n25(1);
-
-  t06(1);
-  t07(1);
-}
diff --git a/tests/language_2/unsorted/extract_type_arguments_test.dart b/tests/language_2/unsorted/extract_type_arguments_test.dart
deleted file mode 100644
index b535bd6fac0..00000000000
--- a/tests/language_2/unsorted/extract_type_arguments_test.dart
+++ /dev/null
@@ -1,99 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Tests the (probably temporary) API for extracting reified type arguments
-/// from an object.
-
-import "package:expect/expect.dart";
-
-// It's weird that a language test is testing code defined in a package. The
-// rationale for putting this test here is:
-//
-// * This package is special and "built-in" to Dart in that the various
-//   compilers give it the special privilege of importing "dart:_internal"
-//   without error.
-//
-// * Eventually, the API being tested here may be replaced with an actual
-//   language feature, in which case this test will become an actual language
-//   test.
-//
-// * Placing the test here ensures it is tested on all of the various platforms
-//   and configurations where we need the API to work.
-import "package:dart_internal/extract_type_arguments.dart";
-
-main() {
-  testExtractIterableTypeArgument();
-  testExtractMapTypeArguments();
-}
-
-testExtractIterableTypeArgument() {
-  Object object = <int>[];
-
-  // Invokes function with iterable's type argument.
-  var called = false;
-  extractIterableTypeArgument(object, <T>() {
-    Expect.equals(T, int);
-    called = true;
-  });
-  Expect.isTrue(called);
-
-  // Returns result of function.
-  Object result = extractIterableTypeArgument(object, <T>() => new Set<T>());
-  Expect.isTrue(result is Set<int>);
-  Expect.isFalse(result is Set<bool>);
-
-  // Accepts user-defined implementations of Iterable.
-  object = new CustomIterable();
-  result = extractIterableTypeArgument(object, <T>() => new Set<T>());
-  Expect.isTrue(result is Set<String>);
-  Expect.isFalse(result is Set<bool>);
-}
-
-testExtractMapTypeArguments() {
-  Object object = <String, int>{};
-
-  // Invokes function with map's type arguments.
-  var called = false;
-  extractMapTypeArguments(object, <K, V>() {
-    Expect.equals(K, String);
-    Expect.equals(V, int);
-    called = true;
-  });
-  Expect.isTrue(called);
-
-  // Returns result of function.
-  Object result = extractMapTypeArguments(object, <K, V>() => new Two<K, V>());
-  Expect.isTrue(result is Two<String, int>);
-  Expect.isFalse(result is Two<int, String>);
-
-  // Accepts user-defined implementations of Map.
-  object = new CustomMap();
-  result = extractMapTypeArguments(object, <K, V>() => new Two<K, V>());
-  Expect.isTrue(result is Two<int, bool>);
-  Expect.isFalse(result is Two<bool, int>);
-
-  // Uses the type parameter order of Map, not any other type in the hierarchy.
-  object = new FlippedMap<double, Null>();
-  result = extractMapTypeArguments(object, <K, V>() => new Two<K, V>());
-  // Order is reversed here:
-  Expect.isTrue(result is Two<Null, double>);
-  Expect.isFalse(result is Two<double, Null>);
-}
-
-class Two<A, B> {}
-
-class CustomIterable implements Iterable<String> {
-  noSuchMethod(i) => throw new UnimplementedError();
-}
-
-class CustomMap implements Map<int, bool> {
-  noSuchMethod(i) => throw new UnimplementedError();
-}
-
-// Note: Flips order of type parameters.
-class FlippedMap<V, K> implements Map<K, V> {
-  noSuchMethod(i) => throw new UnimplementedError();
-}
diff --git a/tests/language_2/unsorted/fannkuch_test.dart b/tests/language_2/unsorted/fannkuch_test.dart
deleted file mode 100644
index 9f3818111eb..00000000000
--- a/tests/language_2/unsorted/fannkuch_test.dart
+++ /dev/null
@@ -1,96 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// The Computer Language Benchmarks Game
-// https://benchmarksgame-team.pages.debian.net/benchmarksgame/
-// Ported from JavaScript contributed by Isaac Gouy.
-// Description: Repeatedly access a tiny integer-sequence.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class FannkuchTest {
-  static fannkuch(n) {
-    var p = new List<dynamic>.filled(n, null),
-        q = new List<dynamic>.filled(n, null),
-        s = new List<dynamic>.filled(n, null);
-    var sign = 1, maxflips = 0, sum = 0, m = n - 1;
-    for (var i = 0; i < n; i++) {
-      p[i] = i;
-      q[i] = i;
-      s[i] = i;
-    }
-    do {
-      // Copy and flip.
-      var q0 = p[0]; // Cache 0th element.
-      if (q0 != 0) {
-        for (var i = 1; i < n; i++) q[i] = p[i]; // Work on a copy.
-        var flips = 1;
-        do {
-          var qq = q[q0];
-          if (qq == 0) {
-            // ... until 0th element is 0.
-            sum += sign * flips;
-            if (flips > maxflips) maxflips = flips; // New maximum?
-            break;
-          }
-          q[q0] = q0;
-          if (q0 >= 3) {
-            var i = 1, j = q0 - 1, t;
-            do {
-              t = q[i];
-              q[i] = q[j];
-              q[j] = t;
-              i++;
-              j--;
-            } while (i < j);
-          }
-          q0 = qq;
-          flips++;
-        } while (true);
-      }
-      if (sign == 1) {
-        var t = p[1];
-        p[1] = p[0];
-        p[0] = t;
-        sign = -1; // Rotate 0<-1.
-      } else {
-        // Rotate 0<-1 and 0<-1<-2.
-        var t = p[1];
-        p[1] = p[2];
-        p[2] = t;
-        sign = 1;
-        for (var i = 2; i < n; i++) {
-          var sx = s[i];
-          if (sx != 0) {
-            s[i] = sx - 1;
-            break;
-          }
-          if (i == m) {
-            return [sum, maxflips];
-          }
-          s[i] = i;
-          // Rotate 0<-...<-i+1.
-          t = p[0];
-          for (var j = 0; j <= i; j++) {
-            p[j] = p[j + 1];
-          }
-          p[i + 1] = t;
-        }
-      }
-    } while (true);
-  }
-
-  static testMain() {
-    var n = 6;
-    var pf = fannkuch(n);
-    Expect.equals(49, pf[0]);
-    Expect.equals(10, pf[1]);
-    print("${pf[0]}\nPfannkuchen($n) = ${pf[1]}");
-  }
-}
-
-main() {
-  FannkuchTest.testMain();
-}
diff --git a/tests/language_2/unsorted/fast_method_extraction_test.dart b/tests/language_2/unsorted/fast_method_extraction_test.dart
deleted file mode 100644
index 6da4f057906..00000000000
--- a/tests/language_2/unsorted/fast_method_extraction_test.dart
+++ /dev/null
@@ -1,108 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test that fast method extraction returns correct closure.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  var f;
-  A(this.f);
-  foo() => 40 + f;
-}
-
-class B {
-  var f;
-  B(this.f);
-  foo() => -40 - f;
-}
-
-class X {}
-
-class C<T> {
-  foo(v) => v is T;
-}
-
-class ChaA {
-  final magic;
-  ChaA(magic) : this.magic = magic;
-
-  foo() {
-    Expect.isTrue(this is ChaA);
-    Expect.equals("magicA", magic);
-    return "A";
-  }
-
-  bar() => foo;
-}
-
-class ChaB extends ChaA {
-  ChaB(magic) : super(magic);
-
-  foo() {
-    Expect.isTrue(this is ChaB);
-    Expect.equals("magicB", magic);
-    return "B";
-  }
-}
-
-mono(a) {
-  var f = a.foo;
-  return f();
-}
-
-poly(a) {
-  var f = a.foo;
-  return f();
-}
-
-types(a, b) {
-  var f = a.foo;
-  Expect.isTrue(f(b));
-}
-
-cha(a) {
-  var f = a.bar();
-  return f();
-}
-
-extractFromNull() {
-  var f = (null).toString;
-  Expect.equals("null", f());
-}
-
-main() {
-  var a = new A(2);
-  var b = new B(2);
-  for (var i = 0; i < 20; i++) {
-    Expect.equals(42, mono(a));
-  }
-
-  for (var i = 0; i < 20; i++) {
-    Expect.equals(42, poly(a));
-    Expect.equals(-42, poly(b));
-  }
-
-  var c = new C<X>();
-  var x = new X();
-  for (var i = 0; i < 20; i++) {
-    types(c, x);
-  }
-
-  var chaA = new ChaA("magicA");
-  for (var i = 0; i < 20; i++) {
-    Expect.equals("A", cha(chaA));
-  }
-
-  var chaB = new ChaB("magicB");
-  for (var i = 0; i < 20; i++) {
-    Expect.equals("B", cha(chaB));
-  }
-
-  for (var i = 0; i < 20; i++) {
-    extractFromNull();
-  }
-}
diff --git a/tests/language_2/unsorted/fauxverride_runtime_test.dart b/tests/language_2/unsorted/fauxverride_runtime_test.dart
deleted file mode 100644
index 46067923094..00000000000
--- a/tests/language_2/unsorted/fauxverride_runtime_test.dart
+++ /dev/null
@@ -1,104 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-// Test the semantics of static members mixed with instance members.
-
-// Following are relevant quotes from Dart Programming Language
-// Specification, Draft Version 0.10, June 7, 2012.
-
-// 7 Classes:
-
-// "It is a compile-time error if a class has an instance method and a
-// static member method with the same name."
-
-// 7.1 Instance Methods:
-
-// "Instance methods are functions (6) whose declarations are
-// immediately contained within a class declaration and that are not
-// declared static. The instance methods of a class C are those
-// instance methods declared by C and the instance methods inherited
-// by C from its superclass."
-
-// 7.6 Static Methods
-
-// "Static methods are functions whose declarations are immediately
-// contained within a class declaration and that are declared
-// static. The static methods of a class C are those static methods
-// declared by C."
-
-// 7.7 Static Variables
-
-// "Static variables are variables whose declarations are immediately
-// contained within a class declaration and that are declared
-// static. The static variables of a class C are those static
-// variables declared by C."
-
-// "A static variable declaration of one of the forms static T v;,
-// static T v = e; , static const T v = e; or static final T v = e;
-// always induces an implicit static getter function (7.2) with
-// signature static T get v whose invocation evaluates as described
-// below (7.7.1)."
-
-m() => 'top level';
-
-class Super {
-  // No error from hiding.
-  static m() => 'super';
-
-  static var i = 'super';
-
-  static var i2 = 'super';
-
-  instanceMethod() => m();
-
-  instanceMethod2() => m();
-}
-
-class Sub extends Super {
-  // According to 7.6, static methods are not inherited.
-  static m() => 'sub';
-
-  // According to 7.7, static variables are not inherited.
-  static var i = 'sub';
-
-  // According to 7.1, instance methods include those of the
-  // superclass, and according to 7, it is a compile-time to have an
-  // instance method and static method with the same name.
-
-  instanceMethod() => m();
-
-  // According to 7.7, static variables are not inherited.
-  static i2() => m();
-
-  // According to 7.1, instance methods include those of the
-  // superclass, and according to 7, it is a compile-time to have an
-  // instance method and static method with the same
-  // name. Furthermore, according to 7.7 a static variable induces an
-  // implicit getter function (a static method).
-
-
-  foo() => 'foo';
-}
-
-main() {
-  Expect.equals('foo', new Sub().foo());
-  Expect.equals('top level', m());
-  Expect.equals('super', Super.m());
-  Expect.equals('sub', Sub.m());
-  Expect.equals('super', Super.i);
-  Expect.equals('sub', Sub.i);
-  Expect.equals('super', Super.i2);
-  Expect.equals('sub', Sub.i2());
-  Expect.equals('super', new Super().instanceMethod());
-  Expect.equals('sub', new Sub().instanceMethod());
-  Expect.equals('super', new Super().instanceMethod2());
-  Expect.equals('super', new Sub().instanceMethod2());
-}
diff --git a/tests/language_2/unsorted/fauxverride_test.dart b/tests/language_2/unsorted/fauxverride_test.dart
deleted file mode 100644
index d1597f68203..00000000000
--- a/tests/language_2/unsorted/fauxverride_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test the semantics of static members mixed with instance members.
-
-// Following are relevant quotes from Dart Programming Language
-// Specification, Draft Version 0.10, June 7, 2012.
-
-// 7 Classes:
-
-// "It is a compile-time error if a class has an instance method and a
-// static member method with the same name."
-
-// 7.1 Instance Methods:
-
-// "Instance methods are functions (6) whose declarations are
-// immediately contained within a class declaration and that are not
-// declared static. The instance methods of a class C are those
-// instance methods declared by C and the instance methods inherited
-// by C from its superclass."
-
-// 7.6 Static Methods
-
-// "Static methods are functions whose declarations are immediately
-// contained within a class declaration and that are declared
-// static. The static methods of a class C are those static methods
-// declared by C."
-
-// 7.7 Static Variables
-
-// "Static variables are variables whose declarations are immediately
-// contained within a class declaration and that are declared
-// static. The static variables of a class C are those static
-// variables declared by C."
-
-// "A static variable declaration of one of the forms static T v;,
-// static T v = e; , static const T v = e; or static final T v = e;
-// always induces an implicit static getter function (7.2) with
-// signature static T get v whose invocation evaluates as described
-// below (7.7.1)."
-
-m() => 'top level';
-
-class Super {
-  // No error from hiding.
-  static m() => 'super';
-
-  static var i = 'super';
-
-  static var i2 = 'super';
-
-  instanceMethod() => m();
-
-  instanceMethod2() => m();
-}
-
-class Sub extends Super {
-  // According to 7.6, static methods are not inherited.
-  static m() => 'sub';
-
-  // According to 7.7, static variables are not inherited.
-  static var i = 'sub';
-
-  // According to 7.1, instance methods include those of the
-  // superclass, and according to 7, it is a compile-time to have an
-  // instance method and static method with the same name.
-  static
-  instanceMethod() => m();
-//^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-// [cfe] Can't declare a member that conflicts with an inherited one.
-
-  // According to 7.7, static variables are not inherited.
-  static i2() => m();
-
-  // According to 7.1, instance methods include those of the
-  // superclass, and according to 7, it is a compile-time to have an
-  // instance method and static method with the same
-  // name. Furthermore, according to 7.7 a static variable induces an
-  // implicit getter function (a static method).
-  static var instanceMethod2;
-  //         ^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.CONFLICTING_STATIC_AND_INSTANCE
-  // [cfe] Can't declare a member that conflicts with an inherited one.
-
-  foo() => 'foo';
-}
-
-main() {
-  Expect.equals('foo', new Sub().foo());
-  Expect.equals('top level', m());
-  Expect.equals('super', Super.m());
-  Expect.equals('sub', Sub.m());
-  Expect.equals('super', Super.i);
-  Expect.equals('sub', Sub.i);
-  Expect.equals('super', Super.i2);
-  Expect.equals('sub', Sub.i2());
-  Expect.equals('super', new Super().instanceMethod());
-  Expect.equals('sub', new Sub().instanceMethod());
-  //                             ^
-  // [cfe] The method 'instanceMethod' isn't defined for the class 'Sub'.
-  Expect.equals('super', new Super().instanceMethod2());
-  Expect.equals('super', new Sub().instanceMethod2());
-  //                               ^
-  // [cfe] The method 'instanceMethod2' isn't defined for the class 'Sub'.
-}
diff --git a/tests/language_2/unsorted/fibo_test.dart b/tests/language_2/unsorted/fibo_test.dart
deleted file mode 100644
index 5182753626c..00000000000
--- a/tests/language_2/unsorted/fibo_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program calculating the Fibonacci sequence.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Helper {
-  static int fibonacci(int n) {
-    int a = 0, b = 1, i = 0;
-    while (i++ < n) {
-      a = a + b;
-      b = a - b;
-    }
-    return a;
-  }
-}
-
-class FiboTest {
-  static testMain() {
-    Expect.equals(0, Helper.fibonacci(0));
-    Expect.equals(1, Helper.fibonacci(1));
-    Expect.equals(1, Helper.fibonacci(2));
-    Expect.equals(2, Helper.fibonacci(3));
-    Expect.equals(3, Helper.fibonacci(4));
-    Expect.equals(5, Helper.fibonacci(5));
-    Expect.equals(102334155, Helper.fibonacci(40));
-  }
-}
-
-main() {
-  FiboTest.testMain();
-}
diff --git a/tests/language_2/unsorted/first_test.dart b/tests/language_2/unsorted/first_test.dart
deleted file mode 100644
index 836646443d2..00000000000
--- a/tests/language_2/unsorted/first_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// First dart test program.
-
-// @dart = 2.9
-
-class FirstTest {
-  static testMain() {
-    return 42;
-  }
-}
-
-main() {
-  FirstTest.testMain();
-}
diff --git a/tests/language_2/unsorted/fixed_length_test.dart b/tests/language_2/unsorted/fixed_length_test.dart
deleted file mode 100644
index 6c89cea41cb..00000000000
--- a/tests/language_2/unsorted/fixed_length_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Regression test for https://code.google.com/p/dart/issues/detail?id=7994.
-
-void main() {
-  Expect.equals(-1, foo());
-}
-
-int foo() {
-  var list = new List<int>.filled(1024, null);
-
-  for (int i = 0; i < list.length; i++) list[i] = -i;
-
-  for (int n = list.length; n > 1; n--) {
-    for (int i = 0; i < n - 1; i++) {
-      if (list[i] > list[i + 1]) {
-        return list[i + 1];
-      }
-    }
-  }
-}
diff --git a/tests/language_2/unsorted/flatten_test.dart b/tests/language_2/unsorted/flatten_test.dart
deleted file mode 100644
index 5f4b86a637e..00000000000
--- a/tests/language_2/unsorted/flatten_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-class Derived<T> implements Future<T> {
-  noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
-}
-
-class FixedPoint<T> implements Future<FixedPoint<T>> {
-  noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
-}
-
-class Divergent<T> implements Future<Divergent<Divergent<T>>> {
-  noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
-}
-
-test() async {
-  // flatten(Derived<int>) = int
-  int x = await new Derived<int>(); //# 01: runtime error
-  Future<int> f() async => new Derived<int>(); //# 02: ok
-  Future<int> f() async { return new Derived<int>(); } //# 03: ok
-  Future<int> x = (() async => new Derived<int>())(); //# 04: runtime error
-
-  // flatten(FixedPoint<int>) = FixedPoint<int>
-  FixedPoint<int> x = await new FixedPoint<int>(); //# 05: runtime error
-  Future<FixedPoint<int>> f() async => new FixedPoint<int>(); //# 06: ok
-  Future<FixedPoint<int>> f() async { return new FixedPoint<int>(); } //# 07: ok
-  Future<FixedPoint<int>> x = (() async => new FixedPoint<int>())(); //# 08: runtime error
-
-  // flatten(Divergent<int>) = Divergent<Divergent<int>>
-  Divergent<Divergent<int>> x = await new Divergent<int>(); //# 09: runtime error
-  Future<Divergent<Divergent<int>>> f() async => new Divergent<int>(); //# 10: ok
-  Future<Divergent<Divergent<int>>> f() async { return new Divergent<int>(); } //# 11: ok
-  Future<Divergent<Divergent<int>>> x = (() async => new Divergent<int>())(); //# 12: runtime error
-}
-
-main() {
-  test();
-}
diff --git a/tests/language_2/unsorted/forwarding_semi_stub_test.dart b/tests/language_2/unsorted/forwarding_semi_stub_test.dart
deleted file mode 100644
index 6f9c6208596..00000000000
--- a/tests/language_2/unsorted/forwarding_semi_stub_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class B {
-  void f(num x) {}
-}
-
-abstract class I<T> {
-  void f(T x);
-}
-
-class C extends B implements I<num> {
-  // This method is a "forwarding semi-stub"--the front end needs to add an
-  // implementation to it that performs type checking and forwards to B::f.
-  void f(num x);
-}
-
-main() {
-  I<Object> i = new C();
-  Expect.throwsTypeError(() {
-    i.f('oops');
-  });
-}
diff --git a/tests/language_2/unsorted/future_or_function_test.dart b/tests/language_2/unsorted/future_or_function_test.dart
deleted file mode 100644
index 6b7b2627cb9..00000000000
--- a/tests/language_2/unsorted/future_or_function_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import 'package:expect/expect.dart';
-
-main() {
-  Expect.subtype<void Function(), FutureOr<void Function()>>();
-}
diff --git a/tests/language_2/unsorted/fuzzy_arrows_test.dart b/tests/language_2/unsorted/fuzzy_arrows_test.dart
deleted file mode 100644
index 7cb92d9b13d..00000000000
--- a/tests/language_2/unsorted/fuzzy_arrows_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Fuzzy arrows will be eliminated from Dart 2.0 soon.  This test checks that
-// implementations have properly removed fuzzy arrow support, both at compile
-// time and at run time.  See dartbug.com/29630 for a detailed explanation.
-
-import "package:expect/expect.dart";
-
-typedef DynamicToDynamic(x);
-typedef NullToDynamic(Null x);
-
-num numToNum(num x) => null;
-
-main() {
-  DynamicToDynamic x = numToNum; //# 01: compile-time error
-  NullToDynamic x = numToNum; //# 02: ok
-  Expect.isFalse(numToNum is DynamicToDynamic); //# 03: ok
-  Expect.isTrue(numToNum is NullToDynamic); //# 04: ok
-}
diff --git a/tests/language_2/unsorted/gc_test.dart b/tests/language_2/unsorted/gc_test.dart
deleted file mode 100644
index 239f107a520..00000000000
--- a/tests/language_2/unsorted/gc_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Testing GC, issue 1469.
-
-// @dart = 2.9
-
-main() {
-  var div;
-  for (int i = 0; i < 200; ++i) {
-    List l = new List<dynamic>.filled(1000000, null);
-    var m = 2;
-    div = (_) {
-      var b = l; // Was causing OutOfMemory.
-    };
-    var lSmall = new List<dynamic>.filled(3, null);
-    // Circular reference between new and old gen objects.
-    lSmall[0] = l;
-    l[0] = lSmall;
-  }
-}
diff --git a/tests/language_2/unsorted/guess_cid_test.dart b/tests/language_2/unsorted/guess_cid_test.dart
deleted file mode 100644
index 77a83427601..00000000000
--- a/tests/language_2/unsorted/guess_cid_test.dart
+++ /dev/null
@@ -1,92 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program to test cid guessing optimizations.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  // Warmup optimizes methods.
-  for (int i = 0; i < 100; i++) {
-    Expect.equals(i, compareInt(i));
-    Expect.equals(i.toDouble(), compareDouble(i.toDouble()));
-    Expect.equals(i, binOpInt(i, i));
-    Expect.equals(i.toDouble(), binOpDouble(i.toDouble(), i.toDouble()));
-  }
-  Expect.equals(3, compareInt(3));
-  Expect.equals(-2, compareInt(-2));
-  Expect.equals(0, compareInt(-1));
-
-  Expect.equals(3, binOpInt(3, 3));
-  Expect.equals(0, binOpInt(-2, -2));
-
-  Expect.equals(3.0, binOpDouble(3.0, 3.0));
-  Expect.equals(0.0, binOpDouble(-2.0, -2.0));
-
-  Expect.equals(3.0, compareDouble(3.0));
-  Expect.equals(-2.0, compareDouble(-2.0));
-  Expect.equals(0.0, compareDouble(-1.0));
-
-  testOSR();
-}
-
-int compareInt(int i) {
-  if (i < 0) {
-    // Not visited in before optimization.
-    // Guess cid of comparison below.
-    if (i == -1) return 0;
-  }
-  return i;
-}
-
-double compareDouble(double i) {
-  if (i < 0.0) {
-    // Not visited in before optimization.
-    // Guess cid of comparison below.
-    if (i == -1.0) return 0.0;
-  }
-  return i;
-}
-
-int binOpInt(int i, int x) {
-  if (i < 0) {
-    // Not visited in before optimization.
-    // Guess cid of binary operation below.
-    return x + 2;
-  }
-  return i;
-}
-
-double binOpDouble(double i, double x) {
-  if (i < 0.0) {
-    // Not visited in before optimization.
-    // Guess cid of binary operation below.
-    return x + 2.0;
-  }
-  return i;
-}
-
-testOSR() {
-  // Foul up  IC data in integer's unary minus.
-  var y = -0x80000000;
-  Expect.equals(
-      (0x7fffffffffffffff + 2) * 10, testLoop(10, 0x7fffffffffffffff));
-  // Second time no deoptimization can occur, since runtime feedback has been collected.
-  Expect.equals(
-      (0x7fffffffffffffff + 2) * 10, testLoop(10, 0x7fffffffffffffff));
-}
-
-testLoop(N, x) {
-  for (int i = 0; i < N; ++i) {
-    // Will trigger OSR. Operation in loop below will use guessed cids.
-  }
-  int sum = 0;
-  for (int i = 0; i < N; ++i) {
-    // Guess 'x' is Smi, but is actually Mint: deoptimize.
-    sum += x + 2;
-  }
-  return sum;
-}
diff --git a/tests/language_2/unsorted/gvn_field_access_test.dart b/tests/language_2/unsorted/gvn_field_access_test.dart
deleted file mode 100644
index fc68ee159ea..00000000000
--- a/tests/language_2/unsorted/gvn_field_access_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  var y = 0;
-  foo(x) {
-    var t = this.y;
-    if (t < x) {
-      for (int i = this.y; i < x; i++) y++;
-    }
-    // dart2js was reusing the 't' from above.
-    return this.y;
-  }
-}
-
-void main() {
-  Expect.equals(3, new A().foo(3));
-}
diff --git a/tests/language_2/unsorted/gvn_interceptor_test.dart b/tests/language_2/unsorted/gvn_interceptor_test.dart
deleted file mode 100644
index c3003ccab1d..00000000000
--- a/tests/language_2/unsorted/gvn_interceptor_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-foo(a, index) {
-  if (a.length < index) {
-    for (int i = a.length; i <= index; i++) a.add(i);
-  }
-  // dart2js was reusing the a.length from above.
-  return a[a.length - 1];
-}
-
-void main() {
-  Expect.equals(3, foo([0], 3));
-}
diff --git a/tests/language_2/unsorted/gvn_test.dart b/tests/language_2/unsorted/gvn_test.dart
deleted file mode 100644
index ef749760c38..00000000000
--- a/tests/language_2/unsorted/gvn_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  int x = 0;
-
-  foo(i) {
-    var start = x;
-    do {
-      x++;
-      i++;
-    } while (i != 10);
-  }
-}
-
-main() {
-  var a = new A();
-  a.foo(0);
-  Expect.equals(10, a.x);
-}
diff --git a/tests/language_2/unsorted/hash_code_mangling_test.dart b/tests/language_2/unsorted/hash_code_mangling_test.dart
deleted file mode 100644
index f24094ce9e0..00000000000
--- a/tests/language_2/unsorted/hash_code_mangling_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Foo {
-  var $identityHash;
-}
-
-void main() {
-  Foo foo = new Foo();
-  foo.$identityHash = 'fisk';
-  Expect.isTrue(foo.$identityHash is String);
-  int hash = foo.hashCode;
-  Expect.isTrue(hash is int);
-  Expect.isTrue(foo.$identityHash is String);
-  Expect.equals(hash, foo.hashCode);
-}
diff --git a/tests/language_2/unsorted/hello_dart_test.dart b/tests/language_2/unsorted/hello_dart_test.dart
deleted file mode 100644
index f0f11b26971..00000000000
--- a/tests/language_2/unsorted/hello_dart_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Simple test program invoked with an option to eagerly
-// compile all code that is loaded in the isolate.
-// VMOptions=--compile_all
-
-// @dart = 2.9
-
-class HelloDartTest {
-  static testMain() {
-    print("Hello, Darter!");
-  }
-}
-
-main() {
-  HelloDartTest.testMain();
-}
diff --git a/tests/language_2/unsorted/hello_script_lib.dart b/tests/language_2/unsorted/hello_script_lib.dart
deleted file mode 100644
index f3b2fdf96fc..00000000000
--- a/tests/language_2/unsorted/hello_script_lib.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing a simple script importing a library.
-// This file contains the library.
-
-library HelloScriptLib;
-
-import "package:expect/expect.dart";
-part "hello_script_lib_source.dart";
-
-class HelloLib {
-  static doTest() {
-    x = 17;
-    Expect.equals(17, x++);
-    print("Hello from Lib!");
-  }
-}
diff --git a/tests/language_2/unsorted/hello_script_lib_source.dart b/tests/language_2/unsorted/hello_script_lib_source.dart
deleted file mode 100644
index 09924617dd6..00000000000
--- a/tests/language_2/unsorted/hello_script_lib_source.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing a simple script importing a library.
-// This file contains a source file included from the library.
-
-// A top-level variable being accessed both from the library and the importer.
-
-part of HelloScriptLib;
-
-var x;
diff --git a/tests/language_2/unsorted/hello_script_test.dart b/tests/language_2/unsorted/hello_script_test.dart
deleted file mode 100644
index f524e62c6a5..00000000000
--- a/tests/language_2/unsorted/hello_script_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-#! This is currently only a comment.
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing a simple script importing a library.
-// This file contains the script (aka root library).
-
-library HelloScriptTest.dart;
-
-import "package:expect/expect.dart";
-import "hello_script_lib.dart";
-
-main() {
-  HelloLib.doTest();
-  Expect.equals(18, x);
-  print("Hello done.");
-}
diff --git a/tests/language_2/unsorted/illegal_declaration_test.dart b/tests/language_2/unsorted/illegal_declaration_test.dart
deleted file mode 100644
index 4ef6c084a07..00000000000
--- a/tests/language_2/unsorted/illegal_declaration_test.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-[ //# 01: syntax error
-
-main() {}
diff --git a/tests/language_2/unsorted/illegal_invocation_lib.dart b/tests/language_2/unsorted/illegal_invocation_lib.dart
deleted file mode 100644
index 1f0c4d57fec..00000000000
--- a/tests/language_2/unsorted/illegal_invocation_lib.dart
+++ /dev/null
@@ -1,5 +0,0 @@
-
-// @dart = 2.9
-library foo;
-
-foo() {}
diff --git a/tests/language_2/unsorted/illegal_invocation_runtime_test.dart b/tests/language_2/unsorted/illegal_invocation_runtime_test.dart
deleted file mode 100644
index 12bae4ca945..00000000000
--- a/tests/language_2/unsorted/illegal_invocation_runtime_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-//
-// Test for issue 1393.  Invoking a library prefix name caused an internal error
-// in dartc.
-
-
-
-main() {
-  // probably what the user meant was foo.foo(), but the qualifier refers
-  // to the library prefix, not the method defined within the library.
-
-}
diff --git a/tests/language_2/unsorted/illegal_invocation_test.dart b/tests/language_2/unsorted/illegal_invocation_test.dart
deleted file mode 100644
index 4527584f580..00000000000
--- a/tests/language_2/unsorted/illegal_invocation_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-//
-// Test for issue 1393.  Invoking a library prefix name caused an internal error
-// in dartc.
-
-// @dart = 2.9
-
-import "illegal_invocation_lib.dart" as foo;
-
-main() {
-  // probably what the user meant was foo.foo(), but the qualifier refers
-  // to the library prefix, not the method defined within the library.
-  foo();
-//^^^
-// [analyzer] COMPILE_TIME_ERROR.PREFIX_IDENTIFIER_NOT_FOLLOWED_BY_DOT
-// [cfe] A prefix can't be used as an expression.
-}
diff --git a/tests/language_2/unsorted/implicit_scope_test.dart b/tests/language_2/unsorted/implicit_scope_test.dart
deleted file mode 100644
index 741e51c4094..00000000000
--- a/tests/language_2/unsorted/implicit_scope_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test that if, while etc create an implicit scope if the body
-// is not a compound statement.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class ImplicitScopeTest {
-  static bool alwaysTrue() {
-    return 1 + 1 == 2;
-  }
-
-  static testMain() {
-    var a = "foo";
-    var b;
-    if (alwaysTrue())
-      var a = "bar";
-    else
-      var b = a;
-    Expect.equals("foo", a);
-    Expect.equals(null, b);
-
-    while (!alwaysTrue()) var a = "bar", b = "baz";
-    Expect.equals("foo", a);
-    Expect.equals(null, b);
-
-    for (int i = 0; i < 10; i++) var a = "bar", b = "baz";
-    Expect.equals("foo", a);
-    Expect.equals(null, b);
-
-    do var a = "bar", b = "baz"; while ("black" == "white");
-    Expect.equals("foo", a);
-    Expect.equals(null, b);
-  }
-}
-
-main() {
-  ImplicitScopeTest.testMain();
-}
diff --git a/tests/language_2/unsorted/index_assign_operator_infer_return_type_test.dart b/tests/language_2/unsorted/index_assign_operator_infer_return_type_test.dart
deleted file mode 100644
index abd5a06f6b3..00000000000
--- a/tests/language_2/unsorted/index_assign_operator_infer_return_type_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class C {
-  operator []=(dynamic index, dynamic value) {}
-}
-
-abstract class I {
-  void operator []=(dynamic index, dynamic value) {}
-}
-
-class D extends C implements I {
-  // Even though `C` and `I` define different return types for `operator[]=`, it
-  // should still be possible to infer a return type here, since the return type
-  // of `operator[]=` is always inferred as `void`.
-  operator []=(dynamic index, dynamic value) {}
-}
-
-main() {}
diff --git a/tests/language_2/unsorted/indirect_const_null_test.dart b/tests/language_2/unsorted/indirect_const_null_test.dart
deleted file mode 100644
index 52737be2946..00000000000
--- a/tests/language_2/unsorted/indirect_const_null_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  const NULL = 1 == 1 ? null : false;
-  Expect.isNull(NULL);
-}
diff --git a/tests/language_2/unsorted/inference_enum_list_test.dart b/tests/language_2/unsorted/inference_enum_list_test.dart
deleted file mode 100644
index 45ec5758c7d..00000000000
--- a/tests/language_2/unsorted/inference_enum_list_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-enum E1 { a, b }
-enum E2 { a, b }
-enum E3 { a, b }
-
-var v = [E1.a, E2.b];
-
-main() {
-  // Test that v is `List<Enum>`, so these assignments are OK.
-  v[0] = E3.a;
-  List<Enum> w = v;
-}
diff --git a/tests/language_2/unsorted/inference_list_or_null_test.dart b/tests/language_2/unsorted/inference_list_or_null_test.dart
deleted file mode 100644
index 8ba52320206..00000000000
--- a/tests/language_2/unsorted/inference_list_or_null_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to statically inline the length of an
-// array held in a variable when it could, even if that variable could
-// be null.
-
-import "package:expect/expect.dart";
-
-var list;
-
-main() {
-  if (new DateTime.now().millisecondsSinceEpoch == 0)
-    list = new List.filled(4, null);
-  Expect.throwsNoSuchMethodError(() => print(list[5]));
-}
diff --git a/tests/language_2/unsorted/intrinsified_methods_test.dart b/tests/language_2/unsorted/intrinsified_methods_test.dart
deleted file mode 100644
index 6ad9e92fb85..00000000000
--- a/tests/language_2/unsorted/intrinsified_methods_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing the instanceof operation.
-
-// @dart = 2.9
-
-library intrinsified_methods_test;
-
-import "package:expect/expect.dart";
-import 'dart:math';
-
-testIsNegative() {
-  Expect.isFalse((12.0).isNegative);
-  Expect.isTrue((-12.0).isNegative);
-  Expect.isFalse((double.nan).isNegative);
-  Expect.isFalse((0.0).isNegative);
-  Expect.isTrue((-0.0).isNegative);
-  Expect.isFalse((double.infinity).isNegative);
-  Expect.isTrue((double.negativeInfinity).isNegative);
-}
-
-testIsNaN() {
-  Expect.isFalse((1.0).isNaN);
-  Expect.isTrue((double.nan).isNaN);
-}
-
-testTrigonometric() {
-  Expect.approxEquals(1.0, sin(pi / 2.0), 0.0001);
-  Expect.approxEquals(1.0, cos(0), 0.0001);
-  Expect.approxEquals(1.0, cos(0.0), 0.0001);
-}
-
-num foo(int n) {
-  var x;
-  for (var i = 0; i <= n; ++i) {
-    Expect.equals(2.0, sqrt(4.0));
-    testIsNegative();
-    testIsNaN();
-    testTrigonometric();
-  }
-  return x;
-}
-
-void main() {
-  var m = foo(4000);
-}
diff --git a/tests/language_2/unsorted/inv_cse_licm_test.dart b/tests/language_2/unsorted/inv_cse_licm_test.dart
deleted file mode 100644
index dc19fcd2ef3..00000000000
--- a/tests/language_2/unsorted/inv_cse_licm_test.dart
+++ /dev/null
@@ -1,501 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--deterministic --optimization_counter_threshold=10
-
-import 'dart:typed_data';
-import "package:expect/expect.dart";
-
-// Tests a few situations in which invariant instructions
-// can be subject to CSE and LICM.
-
-@pragma('vm:never-inline')
-int cse1(Int32List a, int n) {
-  int x = a[0];
-  for (int i = 0; i < n; i++) {
-    // The a[0] null check, bounds check, and the actual load can be
-    // CSEed with the instructions above even if loop is not taken.
-    x += a[0] * a[i];
-  }
-  return x;
-}
-
-@pragma('vm:never-inline')
-int cse2(Int32List a, int n) {
-  int x = a[0];
-  for (int i = 0; i < n; i++) {
-    // The a[0] null check, bounds check, but not the actual load can be
-    // CSEed with the instructions above, since the value of the load
-    // changes in the loop.
-    a[i] = a[0] + 1;
-  }
-  return x;
-}
-
-@pragma('vm:never-inline')
-int licm1(Int32List a, int n) {
-  int x = 0;
-  for (int i = 0; i < n; i++) {
-    // The a[0] null check, bounds check, and the actual load cannot
-    // be LICMed, since the loop may be non-taken.
-    x += a[0] * a[i];
-  }
-  return x;
-}
-
-@pragma('vm:never-inline')
-int licm2(Int32List a) {
-  int x = 0;
-  for (int i = 0; i < 16; i++) {
-    // The a[0] null check, bounds check, and the actual load can be
-    // LICMed, since the loop is always-taken.
-    x += a[0] * a[i];
-  }
-  return x;
-}
-
-@pragma('vm:never-inline')
-int licm3(Int32List a, bool cond) {
-  int x = 0;
-  for (int i = 0; i < 16; i++) {
-    // The a[0] null check, bounds check, and the actual load cannot
-    // be LICMed, since the condition may be non-taken (and we don't
-    // hoist invariant conditions).
-    if (cond) x += a[0] * a[i];
-  }
-  return x;
-}
-
-@pragma('vm:never-inline')
-int licm3_brk(Int32List a, bool cond) {
-  int x = 0;
-  for (int i = 0; i < 16; i++) {
-    // The a[0] null check, bounds check, and the actual load cannot
-    // be LICMed, since the condition may be taken (and we don't
-    // hoist invariant conditions).
-    if (cond) break;
-    x += a[0] * a[i];
-  }
-  return x;
-}
-
-int global;
-
-@pragma('vm:never-inline')
-int licm4(Int32List a) {
-  int x = 0;
-  for (int i = 0; i < 16; i++) {
-    // The a[0] null check, bounds check, and the actual load cannot
-    // be LICMed, since something visible happens before an exception
-    // may be thrown.
-    global++;
-    x += a[0] * a[i];
-  }
-  return x;
-}
-
-@pragma('vm:never-inline')
-int licm5(Int32List a) {
-  int x = 0;
-  // Anything in the loop header can be LICMed.
-  for (int i = 0; i < a[1]; i++) {
-    x++;
-  }
-  return x;
-}
-
-@pragma('vm:never-inline')
-int licm6(Int32List a, int n) {
-  int x = 0;
-  int i = 0;
-  do {
-    // The a[0] null check, bounds check, and the actual load can be
-    // LICMed, since this "header" is always-taken.
-    x += a[0] * a[i++];
-  } while (i < n);
-  return x;
-}
-
-@pragma('vm:never-inline')
-int licm7(Int32List a, int n) {
-  int x = 0;
-  int i = 0;
-  while (true) {
-    // The a[0] null check, bounds check, and the actual load can be
-    // LICMed, since this "header" is always-taken.
-    x += a[0] * a[i++];
-    if (i >= n) break;
-  }
-  return x;
-}
-
-@pragma('vm:never-inline')
-int licm8(Int32List a, int n) {
-  int x = 0;
-  int i = 0;
-  while (true) {
-    if (i >= n) break;
-    // No LICM at this point, loop body may not be taken.
-    x += a[0] * a[i++];
-  }
-  return x;
-}
-
-@pragma('vm:never-inline')
-int licm9(Int32List a) {
-  int x = 0;
-  int i = 0;
-  while (true) {
-    if (i >= 16) break;
-    // The a[0] null check, bounds check, and the actual load can be
-    // LICMed, since the loop is always-taken.
-    x += a[0] * a[i++];
-  }
-  return x;
-}
-
-@pragma('vm:never-inline')
-int licm10(Int32List a, bool cond) {
-  int x = 0;
-  int i = 0;
-  while (true) {
-    if (i >= 16) break;
-    // The a[0] null check, bounds check, and the actual load cannot
-    // be LICMed, since the condition may be non-taken (and we don't
-    // hoist invariant conditions).
-    if (cond) x += a[0] * a[i];
-    i++;
-  }
-  return x;
-}
-
-@pragma('vm:never-inline')
-int licm10_brk(Int32List a, bool cond) {
-  int x = 0;
-  int i = 0;
-  while (true) {
-    if (i >= 16) break;
-    // The a[0] null check, bounds check, and the actual load cannot
-    // be LICMed, since the condition may be taken (and we don't
-    // hoist invariant conditions).
-    if (cond) break;
-    x += a[0] * a[i++];
-  }
-  return x;
-}
-
-@pragma('vm:never-inline')
-int licm11(Int32List a) {
-  int x = 0;
-  while (true) {
-    // Anything in the loop header can be LICMed.
-    if (x > a[1]) break;
-    x++;
-  }
-  return x;
-}
-
-@pragma('vm:never-inline')
-int foo() {
-  return global--;
-}
-
-@pragma('vm:never-inline')
-int licm12(Int32List a) {
-  int x = 0;
-  int i = 0;
-  // Side-effect loop bound.
-  for (int i = 0; i < foo(); i++) {
-    x += a[0] * a[i++];
-  }
-  return x;
-}
-
-doTests() {
-  var x = new Int32List(0);
-  var a = new Int32List(16);
-  for (int i = 0; i < 16; i++) {
-    a[i] = i + 1;
-  }
-
-  Expect.throws(() {
-    cse1(null, 0);
-  }, (e) {
-    return e is NoSuchMethodError;
-  });
-  Expect.throws(() {
-    cse1(null, 1);
-  }, (e) {
-    return e is NoSuchMethodError;
-  });
-  Expect.throws(() {
-    cse1(x, 0);
-  }, (e) {
-    return e is RangeError;
-  });
-  Expect.throws(() {
-    cse1(x, 1);
-  }, (e) {
-    return e is RangeError;
-  });
-  Expect.equals(1, cse1(a, 0));
-  Expect.equals(137, cse1(a, 16));
-
-  Expect.throws(() {
-    cse2(null, 0);
-  }, (e) {
-    return e is NoSuchMethodError;
-  });
-  Expect.throws(() {
-    cse2(null, 1);
-  }, (e) {
-    return e is NoSuchMethodError;
-  });
-  Expect.throws(() {
-    cse2(x, 0);
-  }, (e) {
-    return e is RangeError;
-  });
-  Expect.throws(() {
-    cse2(x, 1);
-  }, (e) {
-    return e is RangeError;
-  });
-  Expect.equals(1, cse2(a, 0));
-  Expect.equals(1, cse2(a, 16));
-  Expect.equals(2, a[0]);
-  for (int i = 1; i < 16; i++) {
-    Expect.equals(3, a[i]);
-  }
-
-  Expect.equals(0, licm1(null, 0));
-  Expect.throws(() {
-    licm1(null, 1);
-  }, (e) {
-    return e is NoSuchMethodError;
-  });
-  Expect.equals(0, licm1(x, 0));
-  Expect.throws(() {
-    licm1(x, 1);
-  }, (e) {
-    return e is RangeError;
-  });
-  Expect.equals(0, licm1(a, 0));
-  Expect.equals(94, licm1(a, 16));
-
-  Expect.throws(() {
-    licm2(null);
-  }, (e) {
-    return e is NoSuchMethodError;
-  });
-  Expect.throws(() {
-    licm2(x);
-  }, (e) {
-    return e is RangeError;
-  });
-  Expect.equals(94, licm2(a));
-
-  Expect.equals(0, licm3(null, false));
-  Expect.throws(() {
-    licm3(null, true);
-  }, (e) {
-    return e is NoSuchMethodError;
-  });
-  Expect.equals(0, licm3(x, false));
-  Expect.throws(() {
-    licm3(x, true);
-  }, (e) {
-    return e is RangeError;
-  });
-  Expect.equals(0, licm3(a, false));
-  Expect.equals(94, licm3(a, true));
-
-  Expect.equals(0, licm3_brk(null, true));
-  Expect.throws(() {
-    licm3_brk(null, false);
-  }, (e) {
-    return e is NoSuchMethodError;
-  });
-  Expect.equals(0, licm3_brk(x, true));
-  Expect.throws(() {
-    licm3_brk(x, false);
-  }, (e) {
-    return e is RangeError;
-  });
-  Expect.equals(0, licm3_brk(a, true));
-  Expect.equals(94, licm3_brk(a, false));
-
-  global = 0;
-  Expect.throws(() {
-    licm4(null);
-  }, (e) {
-    return e is NoSuchMethodError;
-  });
-  Expect.equals(1, global);
-  Expect.throws(() {
-    licm4(x);
-  }, (e) {
-    return e is RangeError;
-  });
-  Expect.equals(2, global);
-  Expect.equals(94, licm4(a));
-  Expect.equals(18, global);
-
-  Expect.throws(() {
-    licm5(null);
-  }, (e) {
-    return e is NoSuchMethodError;
-  });
-  Expect.throws(() {
-    licm5(x);
-  }, (e) {
-    return e is RangeError;
-  });
-  Expect.equals(3, licm5(a));
-
-  Expect.throws(() {
-    licm6(null, 0);
-  }, (e) {
-    return e is NoSuchMethodError;
-  });
-  Expect.throws(() {
-    licm6(null, 1);
-  }, (e) {
-    return e is NoSuchMethodError;
-  });
-  Expect.throws(() {
-    licm6(x, 0);
-  }, (e) {
-    return e is RangeError;
-  });
-  Expect.throws(() {
-    licm6(x, 1);
-  }, (e) {
-    return e is RangeError;
-  });
-  Expect.equals(4, licm6(a, 0));
-  Expect.equals(94, licm6(a, 16));
-
-  Expect.throws(() {
-    licm7(null, 0);
-  }, (e) {
-    return e is NoSuchMethodError;
-  });
-  Expect.throws(() {
-    licm7(null, 1);
-  }, (e) {
-    return e is NoSuchMethodError;
-  });
-  Expect.throws(() {
-    licm7(x, 0);
-  }, (e) {
-    return e is RangeError;
-  });
-  Expect.throws(() {
-    licm7(x, 1);
-  }, (e) {
-    return e is RangeError;
-  });
-  Expect.equals(4, licm7(a, 0));
-  Expect.equals(94, licm7(a, 16));
-
-  Expect.equals(0, licm8(null, 0));
-  Expect.throws(() {
-    licm8(null, 1);
-  }, (e) {
-    return e is NoSuchMethodError;
-  });
-  Expect.equals(0, licm8(x, 0));
-  Expect.throws(() {
-    licm8(x, 1);
-  }, (e) {
-    return e is RangeError;
-  });
-  Expect.equals(0, licm8(a, 0));
-  Expect.equals(94, licm8(a, 16));
-
-  Expect.throws(() {
-    licm9(null);
-  }, (e) {
-    return e is NoSuchMethodError;
-  });
-  Expect.throws(() {
-    licm9(x);
-  }, (e) {
-    return e is RangeError;
-  });
-  Expect.equals(94, licm9(a));
-
-  Expect.equals(0, licm10(null, false));
-  Expect.throws(() {
-    licm10(null, true);
-  }, (e) {
-    return e is NoSuchMethodError;
-  });
-  Expect.equals(0, licm10(x, false));
-  Expect.throws(() {
-    licm10(x, true);
-  }, (e) {
-    return e is RangeError;
-  });
-  Expect.equals(0, licm10(a, false));
-  Expect.equals(94, licm10(a, true));
-
-  Expect.equals(0, licm10_brk(null, true));
-  Expect.throws(() {
-    licm10_brk(null, false);
-  }, (e) {
-    return e is NoSuchMethodError;
-  });
-  Expect.equals(0, licm10_brk(x, true));
-  Expect.throws(() {
-    licm10_brk(x, false);
-  }, (e) {
-    return e is RangeError;
-  });
-  Expect.equals(0, licm10_brk(a, true));
-  Expect.equals(94, licm10_brk(a, false));
-
-  Expect.throws(() {
-    licm11(null);
-  }, (e) {
-    return e is NoSuchMethodError;
-  });
-  Expect.throws(() {
-    licm11(x);
-  }, (e) {
-    return e is RangeError;
-  });
-  Expect.equals(4, licm11(a));
-
-  global = 0;
-  Expect.equals(0, licm12(null));
-  Expect.equals(-1, global);
-  Expect.equals(0, licm12(x));
-  Expect.equals(-2, global);
-  global = 16;
-  Expect.throws(() {
-    licm12(null);
-  }, (e) {
-    return e is NoSuchMethodError;
-  });
-  Expect.equals(15, global);
-  Expect.throws(() {
-    licm12(x);
-  }, (e) {
-    return e is RangeError;
-  });
-  Expect.equals(14, global);
-  Expect.equals(28, licm12(a));
-  Expect.equals(8, global);
-}
-
-main() {
-  // Repeat to enter JIT (when applicable).
-  for (int i = 0; i < 20; i++) {
-    doTests();
-  }
-}
diff --git a/tests/language_2/unsorted/invalid_cast_runtime_1_test.dart b/tests/language_2/unsorted/invalid_cast_runtime_1_test.dart
deleted file mode 100644
index 9a4e555ec14..00000000000
--- a/tests/language_2/unsorted/invalid_cast_runtime_1_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class C {
-  C();
-  factory C.fact() => null;
-  factory C.fact2() = D;
-  C.nonFact();
-  C.nonFact2() : this.nonFact();
-  static void staticFunction(int i) {}
-}
-
-class D extends C {}
-
-void topLevelFunction(int i) {}
-
-test() {
-  void localFunction(int i) {}
-
-
-
-
-  D e = new C.fact();
-
-
-
-
-
-
-}
-
-main() {}
diff --git a/tests/language_2/unsorted/invalid_cast_runtime_2_test.dart b/tests/language_2/unsorted/invalid_cast_runtime_2_test.dart
deleted file mode 100644
index 15a0b7711ab..00000000000
--- a/tests/language_2/unsorted/invalid_cast_runtime_2_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class C {
-  C();
-  factory C.fact() => null;
-  factory C.fact2() = D;
-  C.nonFact();
-  C.nonFact2() : this.nonFact();
-  static void staticFunction(int i) {}
-}
-
-class D extends C {}
-
-void topLevelFunction(int i) {}
-
-test() {
-  void localFunction(int i) {}
-
-
-
-
-
-  D f = new C.fact2();
-
-
-
-
-
-}
-
-main() {}
diff --git a/tests/language_2/unsorted/invalid_cast_runtime_test.dart b/tests/language_2/unsorted/invalid_cast_runtime_test.dart
deleted file mode 100644
index b94e73466fc..00000000000
--- a/tests/language_2/unsorted/invalid_cast_runtime_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class C {
-  C();
-  factory C.fact() => null;
-  factory C.fact2() = D;
-  C.nonFact();
-  C.nonFact2() : this.nonFact();
-  static void staticFunction(int i) {}
-}
-
-class D extends C {}
-
-void topLevelFunction(int i) {}
-
-test() {
-  void localFunction(int i) {}
-
-
-
-
-
-
-
-
-
-
-
-}
-
-main() {}
diff --git a/tests/language_2/unsorted/invalid_cast_test.dart b/tests/language_2/unsorted/invalid_cast_test.dart
deleted file mode 100644
index ca0f164359b..00000000000
--- a/tests/language_2/unsorted/invalid_cast_test.dart
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class C {
-  C();
-  factory C.fact() => null;
-  factory C.fact2() = D;
-  C.nonFact();
-  C.nonFact2() : this.nonFact();
-  static void staticFunction(int i) {}
-}
-
-class D extends C {}
-
-void topLevelFunction(int i) {}
-
-test() {
-  void localFunction(int i) {}
-  List<int> a = <Object>[];
-  //            ^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_CAST_LITERAL_LIST
-  //                    ^
-  // [cfe] The list literal type 'List<Object>' isn't of expected type 'List<int>'.
-  Map<int, String> b = <Object, String>{};
-  //                   ^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_CAST_LITERAL_MAP
-  //                                   ^
-  // [cfe] The map literal type 'Map<Object, String>' isn't of expected type 'Map<int, String>'.
-  Map<int, String> c = <int, Object>{};
-  //                   ^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_CAST_LITERAL_MAP
-  //                                ^
-  // [cfe] The map literal type 'Map<int, Object>' isn't of expected type 'Map<int, String>'.
-  int Function(Object) d = (int i) => i;
-  //                       ^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_CAST_FUNCTION_EXPR
-  // [cfe] The function expression type 'int Function(int)' isn't of expected type 'int Function(Object)'.
-  D e = new C.fact();
-  D f = new C.fact2();
-  D g = new C.nonFact();
-  //    ^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_CAST_NEW_EXPR
-  //        ^
-  // [cfe] The constructor returns type 'C' that isn't of expected type 'D'.
-  D h = new C.nonFact2();
-  //    ^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_CAST_NEW_EXPR
-  //        ^
-  // [cfe] The constructor returns type 'C' that isn't of expected type 'D'.
-  void Function(Object) i = C.staticFunction;
-  //                        ^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_CAST_METHOD
-  //                          ^
-  // [cfe] The static method has type 'void Function(int)' that isn't of expected type 'void Function(Object)'.
-  void Function(Object) j = topLevelFunction;
-  //                        ^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_CAST_FUNCTION
-  // [cfe] The top level function has type 'void Function(int)' that isn't of expected type 'void Function(Object)'.
-  void Function(Object) k = localFunction;
-  //                        ^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.INVALID_CAST_FUNCTION
-  // [cfe] The local function has type 'void Function(int)' that isn't of expected type 'void Function(Object)'.
-}
-
-main() {}
diff --git a/tests/language_2/unsorted/invalid_type_argument_count_runtime_test.dart b/tests/language_2/unsorted/invalid_type_argument_count_runtime_test.dart
deleted file mode 100644
index ff5c8489e79..00000000000
--- a/tests/language_2/unsorted/invalid_type_argument_count_runtime_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test top level field.
-dynamic // Formatter shouldn't join this line.
-
-    x1 = 42;
-
-class Foo {
-  // Test class member.
-  dynamic // Formatter shouldn't join this line.
-
-      x2 = 42;
-
-  Foo() {
-    print(x2);
-  }
-}
-
-main() {
-  print(x1);
-
-  new Foo();
-
-  // Test local variable.
-  dynamic // Formatter shouldn't join this line.
-
-      x3 = 42;
-  print(x3);
-
-  foo(42);
-}
-
-// Test parameter.
-void foo(
-    dynamic // Formatter shouldn't join this line.
-
-        x4) {
-  print(x4);
-}
diff --git a/tests/language_2/unsorted/invalid_type_argument_count_test.dart b/tests/language_2/unsorted/invalid_type_argument_count_test.dart
deleted file mode 100644
index 8cfb724a3b0..00000000000
--- a/tests/language_2/unsorted/invalid_type_argument_count_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test top level field.
-dynamic<int> x1 = 42;
-// [error line 8, column 1, length 12]
-// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-// [cfe] Expected 0 type arguments.
-
-class Foo {
-  // Test class member.
-  dynamic<int> x2 = 42;
-//^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-// [cfe] Expected 0 type arguments.
-
-  Foo() {
-    print(x2);
-  }
-}
-
-main() {
-  print(x1);
-
-  new Foo();
-
-  // Test local variable.
-  dynamic<int> x3 = 42;
-//^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-// [cfe] Expected 0 type arguments.
-  print(x3);
-
-  foo(42);
-}
-
-// Test parameter.
-void foo(dynamic<int> x4) {
-//       ^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.WRONG_NUMBER_OF_TYPE_ARGUMENTS
-// [cfe] Expected 0 type arguments.
-  print(x4);
-}
diff --git a/tests/language_2/unsorted/invocation_mirror2_test.dart b/tests/language_2/unsorted/invocation_mirror2_test.dart
deleted file mode 100644
index e6c1a4262ff..00000000000
--- a/tests/language_2/unsorted/invocation_mirror2_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C {
-  Invocation im;
-  noSuchMethod(im) => this.im = im;
-  flif() {}
-}
-
-main() {
-  dynamic c = new C();
-  c.flif = 42;
-  Expect.equals(const Symbol("flif="), c.im.memberName);
-  Expect.equals(42, c.im.positionalArguments[0]);
-}
diff --git a/tests/language_2/unsorted/invocation_mirror_empty_arguments_test.dart b/tests/language_2/unsorted/invocation_mirror_empty_arguments_test.dart
deleted file mode 100644
index 485b1533a9e..00000000000
--- a/tests/language_2/unsorted/invocation_mirror_empty_arguments_test.dart
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Validates that positional arguments are an empty immutable list.
-void expectEmptyPositionalArguments(Invocation invocation) {
-  Expect.isTrue(invocation.positionalArguments.isEmpty);
-  Expect.throwsUnsupportedError(() => invocation.positionalArguments.clear());
-}
-
-// Validates that positional arguments are an empty immutable map.
-void expectEmptyNamedArguments(Invocation invocation) {
-  Expect.isTrue(invocation.namedArguments.isEmpty);
-  Expect.throwsUnsupportedError(() => invocation.namedArguments.clear());
-}
-
-class Getter {
-  get getterThatDoesNotExist;
-
-  noSuchMethod(invocation) {
-    Expect.isTrue(invocation.isGetter);
-    expectEmptyPositionalArguments(invocation);
-    expectEmptyNamedArguments(invocation);
-  }
-}
-
-class Setter {
-  set setterThatDoesNotExist(value);
-
-  noSuchMethod(invocation) {
-    Expect.isTrue(invocation.isSetter);
-    expectEmptyNamedArguments(invocation);
-  }
-}
-
-class Method {
-  methodThatDoesNotExist();
-
-  noSuchMethod(invocation) {
-    Expect.isTrue(invocation.isMethod);
-    expectEmptyPositionalArguments(invocation);
-    expectEmptyNamedArguments(invocation);
-  }
-}
-
-class Operator {
-  operator +(other);
-
-  noSuchMethod(invocation) {
-    Expect.isTrue(invocation.isMethod);
-    expectEmptyNamedArguments(invocation);
-  }
-}
-
-main() {
-  var g = new Getter();
-  print(g.getterThatDoesNotExist);
-  var s = new Setter();
-  print(s.setterThatDoesNotExist = 42);
-  var m = new Method();
-  print(m.methodThatDoesNotExist());
-  var o = new Operator();
-  print(o + 42); // Operator that does not exist.
-}
diff --git a/tests/language_2/unsorted/invocation_mirror_test.dart b/tests/language_2/unsorted/invocation_mirror_test.dart
deleted file mode 100644
index 4addddba484..00000000000
--- a/tests/language_2/unsorted/invocation_mirror_test.dart
+++ /dev/null
@@ -1,319 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Invocation and noSuchMethod testing.
-
-Map<Symbol, dynamic> listToNamedArguments(list) {
-  var iterator = list.iterator;
-  var result = new Map<Symbol, dynamic>();
-  while (iterator.moveNext()) {
-    Symbol key = iterator.current;
-    Expect.isTrue(iterator.moveNext());
-    result[key] = iterator.current;
-  }
-  return result;
-}
-
-/** Class with noSuchMethod that returns the mirror */
-class N {
-  // Storage for the last argument to noSuchMethod.
-  // Needed for setters, which don't evaluate to the return value.
-  var last;
-  noSuchMethod(Invocation m) => last = m;
-
-  flif(int x) {
-    Expect.fail("never get here");
-  }
-
-  flaf([int x]) {
-    Expect.fail("never get here");
-  }
-
-  flof({int y}) {
-    Expect.fail("never get here");
-  }
-
-  get wut => this;
-  final int plif = 99;
-  int get plaf {
-    Expect.fail("never get here");
-    return 0;
-  }
-}
-
-/** As [N] but also implements 'call', so we can call it with wrong arguments.*/
-class C extends N {
-  call(int x) {
-    Expect.fail("never get here");
-  }
-}
-
-/**
- * Checks the data of an Invocation.
- *
- * Call without optionals for getters, with only positional for setters,
- * and with both optionals for everything else.
- */
-testInvocationMirror(Invocation im, Symbol name,
-    [List positional, List named, List typeArgs]) {
-  Expect.isTrue(im is Invocation, "is Invocation");
-  Expect.equals(name, im.memberName, "name");
-  if (named == null) {
-    Expect.isTrue(im.isAccessor, "$name:isAccessor");
-    Expect.isFalse(im.isMethod, "$name:isMethod");
-    if (positional == null) {
-      Expect.isTrue(im.isGetter, "$name:isGetter");
-      Expect.isFalse(im.isSetter, "$name:isSetter");
-      Expect.equals(0, im.positionalArguments.length, "$name:#positional");
-      Expect.equals(0, im.namedArguments.length, "$name:#named");
-      return;
-    }
-    Expect.isTrue(im.isSetter, "$name:isSetter");
-    Expect.isFalse(im.isGetter, "$name:isGetter");
-    Expect.equals(1, im.positionalArguments.length, "$name:#positional");
-    Expect.equals(
-        positional[0], im.positionalArguments[0], "$name:positional[0]");
-    Expect.equals(0, im.namedArguments.length, "$name:#named");
-    return;
-  }
-  Map<Symbol, dynamic> namedArguments = listToNamedArguments(named);
-  Expect.isTrue(im.isMethod, "$name:isMethod");
-  Expect.isFalse(im.isAccessor, "$name:isAccessor");
-  Expect.isFalse(im.isSetter, "$name:isSetter");
-  Expect.isFalse(im.isGetter, "$name:isGetter");
-
-  Expect.listEquals(positional, im.positionalArguments);
-
-  Expect.equals(
-      namedArguments.length, im.namedArguments.length, "$name:#named");
-  namedArguments.forEach((k, v) {
-    Expect.isTrue(
-        im.namedArguments.containsKey(k), "$name:?namedArguments[$k]");
-    Expect.equals(v, im.namedArguments[k], "$name:namedArguments[$k]");
-  });
-  var imTypeArgs = (im as dynamic).typeArguments as List<Type>;
-  Expect.listEquals(typeArgs ?? [], imTypeArgs);
-}
-
-// Test different ways that noSuchMethod can be called.
-testInvocationMirrors() {
-  dynamic n = new N();
-  dynamic c = new C();
-
-  // Missing property/method access.
-  testInvocationMirror(n.bar, const Symbol('bar'));
-  testInvocationMirror((n..bar = 42).last, const Symbol('bar='), [42]);
-  testInvocationMirror(n.bar(), const Symbol('bar'), [], []);
-  testInvocationMirror(n.bar(42), const Symbol('bar'), [42], []);
-  testInvocationMirror(
-      n.bar(x: 42), const Symbol('bar'), [], [const Symbol("x"), 42]);
-  testInvocationMirror(
-      n.bar(37, x: 42), const Symbol('bar'), [37], [const Symbol("x"), 42]);
-
-  // Missing operator access.
-  testInvocationMirror(n + 4, const Symbol('+'), [4], []);
-  testInvocationMirror(n - 4, const Symbol('-'), [4], []);
-  testInvocationMirror(-n, const Symbol('unary-'), [], []);
-  testInvocationMirror(n[42], const Symbol('[]'), [42], []);
-  testInvocationMirror((n..[37] = 42).last, const Symbol('[]='), [37, 42], []);
-
-  // Calling as function when it's not.
-  testInvocationMirror(n(), const Symbol('call'), [], []);
-  testInvocationMirror(n(42), const Symbol('call'), [42], []);
-  testInvocationMirror(
-      n(x: 42), const Symbol('call'), [], [const Symbol("x"), 42]);
-  testInvocationMirror(
-      n(37, x: 42), const Symbol('call'), [37], [const Symbol("x"), 42]);
-
-  // Calling with arguments not matching existing call method.
-  testInvocationMirror(c(), const Symbol('call'), [], []);
-  testInvocationMirror(c(37, 42), const Symbol('call'), [37, 42], []);
-  testInvocationMirror(
-      c(x: 42), const Symbol('call'), [], [const Symbol("x"), 42]);
-  testInvocationMirror(
-      c(37, x: 42), const Symbol('call'), [37], [const Symbol("x"), 42]);
-
-  // Wrong arguments to existing function.
-  testInvocationMirror(n.flif(), const Symbol("flif"), [], []);
-  testInvocationMirror(n.flif(37, 42), const Symbol("flif"), [37, 42], []);
-  testInvocationMirror(
-      n.flif(x: 42), const Symbol("flif"), [], [const Symbol("x"), 42]);
-  testInvocationMirror(
-      n.flif(37, x: 42), const Symbol("flif"), [37], [const Symbol("x"), 42]);
-  testInvocationMirror((n..flif = 42).last, const Symbol("flif="), [42]);
-
-  testInvocationMirror(n.flaf(37, 42), const Symbol("flaf"), [37, 42], []);
-  testInvocationMirror(
-      n.flaf(x: 42), const Symbol("flaf"), [], [const Symbol("x"), 42]);
-  testInvocationMirror(
-      n.flaf(37, x: 42), const Symbol("flaf"), [37], [const Symbol("x"), 42]);
-  testInvocationMirror((n..flaf = 42).last, const Symbol("flaf="), [42]);
-
-  testInvocationMirror(n.flof(37, 42), const Symbol("flof"), [37, 42], []);
-  testInvocationMirror(
-      n.flof(x: 42), const Symbol("flof"), [], [const Symbol("x"), 42]);
-  testInvocationMirror(
-      n.flof(37, y: 42), const Symbol("flof"), [37], [const Symbol("y"), 42]);
-  testInvocationMirror((n..flof = 42).last, const Symbol("flof="), [42]);
-
-  // Reading works.
-  Expect.isTrue(n.flif is Function);
-  Expect.isTrue(n.flaf is Function);
-  Expect.isTrue(n.flof is Function);
-
-  // Writing to read-only fields.
-  testInvocationMirror((n..wut = 42).last, const Symbol("wut="), [42]);
-  testInvocationMirror((n..plif = 42).last, const Symbol("plif="), [42]);
-  testInvocationMirror((n..plaf = 42).last, const Symbol("plaf="), [42]);
-
-  // Trick call to n.call - wut is a getter returning n again.
-  testInvocationMirror(n.wut(42), const Symbol("call"), [42], []);
-
-  // Calling noSuchMethod itself, badly.
-  testInvocationMirror(n.noSuchMethod(), const Symbol("noSuchMethod"), [], []);
-  testInvocationMirror(
-      n.noSuchMethod(37, 42), const Symbol("noSuchMethod"), [37, 42], []);
-  testInvocationMirror(n.noSuchMethod(37, x: 42), const Symbol("noSuchMethod"),
-      [37], [const Symbol("x"), 42]);
-  testInvocationMirror(n.noSuchMethod(x: 42), const Symbol("noSuchMethod"), [],
-      [const Symbol("x"), 42]);
-
-  // Closurizing a method means that calling it badly will not hit the
-  // original receivers noSuchMethod, only the one inherited from Object
-  // by the closure object.
-  Expect.throwsNoSuchMethodError(() {
-    var x = n.flif;
-    x(37, 42);
-  });
-  Expect.throwsNoSuchMethodError(() {
-    var x = c.call;
-    x(37, 42);
-  });
-}
-
-class M extends N {
-  testSelfCalls() {
-    // Missing property/method access.
-    dynamic self = this;
-    testInvocationMirror(self.bar, const Symbol('bar'));
-    testInvocationMirror(() {
-      self.bar = 42;
-      return last;
-    }(), const Symbol('bar='), [42]);
-    testInvocationMirror(self.bar(), const Symbol('bar'), [], []);
-    testInvocationMirror(self.bar(42), const Symbol('bar'), [42], []);
-    testInvocationMirror(
-        self.bar(x: 42), const Symbol('bar'), [], [const Symbol("x"), 42]);
-    testInvocationMirror(self.bar(37, x: 42), const Symbol('bar'), [37],
-        [const Symbol("x"), 42]);
-
-    // Missing operator access.
-    testInvocationMirror(self + 4, const Symbol('+'), [4], []);
-    testInvocationMirror(self - 4, const Symbol('-'), [4], []);
-    testInvocationMirror(-self, const Symbol('unary-'), [], []);
-    testInvocationMirror(self[42], const Symbol('[]'), [42], []);
-    testInvocationMirror(() {
-      self[37] = 42;
-      return last;
-    }(), const Symbol('[]='), [37, 42], []);
-
-    // Wrong arguments to existing function.
-    testInvocationMirror(self.flif(), const Symbol("flif"), [], []);
-    testInvocationMirror(self.flif(37, 42), const Symbol("flif"), [37, 42], []);
-    testInvocationMirror(
-        self.flif(x: 42), const Symbol("flif"), [], [const Symbol("x"), 42]);
-    testInvocationMirror(self.flif(37, x: 42), const Symbol("flif"), [37],
-        [const Symbol("x"), 42]);
-    testInvocationMirror(() {
-      self.flif = 42;
-      return last;
-    }(), const Symbol("flif="), [42]);
-
-    testInvocationMirror(self.flaf(37, 42), const Symbol("flaf"), [37, 42], []);
-    testInvocationMirror(
-        self.flaf(x: 42), const Symbol("flaf"), [], [const Symbol("x"), 42]);
-    testInvocationMirror(self.flaf(37, x: 42), const Symbol("flaf"), [37],
-        [const Symbol("x"), 42]);
-    testInvocationMirror(() {
-      self.flaf = 42;
-      return last;
-    }(), const Symbol("flaf="), [42]);
-
-    testInvocationMirror(self.flof(37, 42), const Symbol("flof"), [37, 42], []);
-    testInvocationMirror(
-        self.flof(x: 42), const Symbol("flof"), [], [const Symbol("x"), 42]);
-    testInvocationMirror(self.flof(37, y: 42), const Symbol("flof"), [37],
-        [const Symbol("y"), 42]);
-    testInvocationMirror(() {
-      self.flof = 42;
-      return last;
-    }(), const Symbol("flof="), [42]);
-
-    // Reading works.
-    Expect.isTrue(self.flif is Function);
-    Expect.isTrue(self.flaf is Function);
-    Expect.isTrue(self.flof is Function);
-
-    // Writing to read-only fields.
-    testInvocationMirror(() {
-      self.wut = 42;
-      return last;
-    }(), const Symbol("wut="), [42]);
-    testInvocationMirror(() {
-      self.plif = 42;
-      return last;
-    }(), const Symbol("plif="), [42]);
-    testInvocationMirror(() {
-      self.plaf = 42;
-      return last;
-    }(), const Symbol("plaf="), [42]);
-
-    // Calling noSuchMethod itself, badly.
-    testInvocationMirror(
-        self.noSuchMethod(), const Symbol("noSuchMethod"), [], []);
-    testInvocationMirror(
-        self.noSuchMethod(37, 42), const Symbol("noSuchMethod"), [37, 42], []);
-    testInvocationMirror(self.noSuchMethod(37, x: 42),
-        const Symbol("noSuchMethod"), [37], [const Symbol("x"), 42]);
-    testInvocationMirror(self.noSuchMethod(x: 42), const Symbol("noSuchMethod"),
-        [], [const Symbol("x"), 42]);
-
-    // Closurizing a method means that calling it badly will not hit the
-    // original receivers noSuchMethod, only the one inherited from Object
-    // by the closure object.
-    Expect.throwsNoSuchMethodError(() {
-      var x = self.flif;
-      x(37, 42);
-    });
-  }
-}
-
-// Test the NoSuchMethodError thrown by different incorrect calls.
-testNoSuchMethodErrors() {
-  dynamic n = new N();
-  dynamic o = new Object();
-  Expect.throwsNoSuchMethodError(() => o.bar);
-  Expect.throwsNoSuchMethodError(() => o.bar = 42);
-  Expect.throwsNoSuchMethodError(() => o.bar());
-  Expect.throwsNoSuchMethodError(() => o + 2);
-  Expect.throwsNoSuchMethodError(() => -o);
-  Expect.throwsNoSuchMethodError(() => o[0]);
-  Expect.throwsNoSuchMethodError(() => o[0] = 42);
-  Expect.throwsNoSuchMethodError(() => o());
-  Expect.throwsNoSuchMethodError(() => o.toString = 42);
-  Expect.throwsNoSuchMethodError(() => o.toString(42));
-  Expect.throwsNoSuchMethodError(() => o.toString(x: 37));
-  Expect.throwsNoSuchMethodError(() => o.hashCode = 42);
-  Expect.throwsNoSuchMethodError(() => (n.flif)()); // Extracted method has no noSuchMethod.
-}
-
-main() {
-  testInvocationMirrors();
-  testNoSuchMethodErrors();
-  new M().testSelfCalls();
-}
diff --git a/tests/language_2/unsorted/js_properties_test.dart b/tests/language_2/unsorted/js_properties_test.dart
deleted file mode 100644
index 6139dff51e1..00000000000
--- a/tests/language_2/unsorted/js_properties_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test that JavaScript properties on Object can still be classes in
-// Dart.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  Expect.equals(42, new __defineGetter__().hello());
-  Expect.equals(42, new __defineSetter__().hello());
-  Expect.equals(42, new __lookupGetter__().hello());
-  Expect.equals(42, new __lookupSetter__().hello());
-  Expect.equals(42, new constructor().hello());
-  Expect.equals(42, new hasOwnProperty().hello());
-  Expect.equals(42, new isPrototypeOf().hello());
-  Expect.equals(42, new propertyIsEnumerable().hello());
-  Expect.equals(42, new toLocaleString().hello());
-  Expect.equals(42, new toString().hello());
-  Expect.equals(42, new valueOf().hello());
-}
-
-class Hello {
-  int hello() => 42;
-}
-
-class __defineGetter__ extends Hello {}
-
-class __defineSetter__ extends Hello {}
-
-class __lookupGetter__ extends Hello {}
-
-class __lookupSetter__ extends Hello {}
-
-class constructor extends Hello {}
-
-class hasOwnProperty extends Hello {}
-
-class isPrototypeOf extends Hello {}
-
-class propertyIsEnumerable extends Hello {}
-
-class toLocaleString extends Hello {}
-
-class toString extends Hello {}
-
-class valueOf extends Hello {}
diff --git a/tests/language_2/unsorted/keyword_type_expression_test.dart b/tests/language_2/unsorted/keyword_type_expression_test.dart
deleted file mode 100644
index e7ae957767b..00000000000
--- a/tests/language_2/unsorted/keyword_type_expression_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that a keyword can't be used as type.  Serves as regression test for
-// crashes in dart2js.
-
-in greeting = "fisk"; // //# 01: syntax error
-
-main(
-in greeting // //# 02: syntax error
-    ) {
-  in greeting = "fisk"; // //# 03: syntax error
-  print(greeting); // //# 01: continued
-}
diff --git a/tests/language_2/unsorted/large_implicit_getter_test.dart b/tests/language_2/unsorted/large_implicit_getter_test.dart
deleted file mode 100644
index df69a05827f..00000000000
--- a/tests/language_2/unsorted/large_implicit_getter_test.dart
+++ /dev/null
@@ -1,1377 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing compilation of large implicit getters.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-List<List> panels = [
-  [6853.940039224797, 6050.837897021371],
-  [6953.240039224797, 6050.837897021371],
-  [7052.5400392247975, 5885.237897021371],
-  [7052.5400392247975, 5719.637897021372],
-  [7151.840039224798, 5885.237897021371],
-  [7052.5400392247975, 6050.837897021371],
-  [7052.5400392247975, 6216.43789702137],
-  [7052.5400392247975, 6382.03789702137],
-  [6953.240039224797, 6382.03789702137],
-  [6953.240039224797, 6216.43789702137],
-  [6853.940039224797, 6216.43789702137],
-  [6853.940039224797, 6382.03789702137],
-  [6754.640039224797, 6216.43789702137],
-  [6754.640039224797, 6382.03789702137],
-  [6754.640039224797, 6547.637897021369],
-  [6754.640039224797, 6713.237897021369],
-  [6655.340039224797, 6713.237897021369],
-  [6754.640039224797, 6878.837897021368],
-  [6853.940039224797, 6713.237897021369],
-  [6853.940039224797, 6878.837897021368],
-  [6953.240039224797, 6713.237897021369],
-  [7052.5400392247975, 6547.637897021369],
-  [7151.840039224798, 6713.237897021369],
-  [7151.840039224798, 6547.637897021369],
-  [7151.840039224798, 6382.03789702137],
-  [7251.140039224798, 6547.637897021369],
-  [7251.140039224798, 6713.237897021369],
-  [7350.440039224798, 6878.837897021368],
-  [7449.740039224798, 6878.837897021368],
-  [7449.740039224798, 6713.237897021369],
-  [7549.040039224798, 6547.637897021369],
-  [7449.740039224798, 6382.03789702137],
-  [7449.740039224798, 6216.43789702137],
-  [7549.040039224798, 6050.837897021371],
-  [7648.340039224799, 6216.43789702137],
-  [7549.040039224798, 6382.03789702137],
-  [7648.340039224799, 6382.03789702137],
-  [7747.640039224799, 6216.43789702137],
-  [7846.940039224799, 6382.03789702137],
-  [7946.240039224799, 6382.03789702137],
-  [7946.240039224799, 6547.637897021369],
-  [7846.940039224799, 6713.237897021369],
-  [7946.240039224799, 6713.237897021369],
-  [8045.540039224799, 6547.637897021369],
-  [8045.540039224799, 6713.237897021369],
-  [7946.240039224799, 6878.837897021368],
-  [7946.240039224799, 7044.4378970213675],
-  [8045.540039224799, 7210.037897021367],
-  [8144.8400392247995, 7375.637897021366],
-  [8144.8400392247995, 7541.237897021366],
-  [8045.540039224799, 7375.637897021366],
-  [8144.8400392247995, 7210.037897021367],
-  [8045.540039224799, 7044.4378970213675],
-  [7946.240039224799, 7210.037897021367],
-  [7846.940039224799, 7210.037897021367],
-  [7946.240039224799, 7375.637897021366],
-  [8045.540039224799, 7541.237897021366],
-  [8144.8400392247995, 7706.837897021365],
-  [8244.1400392248, 7541.237897021366],
-  [8343.4400392248, 7541.237897021366],
-  [8343.4400392248, 7706.837897021365],
-  [8244.1400392248, 7706.837897021365],
-  [4735.523842661975, 3503.497768214323],
-  [4636.223842661975, 3337.897768214323],
-  [4536.923842661975, 3337.897768214323],
-  [4437.623842661975, 3172.2977682143232],
-  [4338.323842661975, 3172.2977682143232],
-  [4239.023842661974, 3172.2977682143232],
-  [4338.323842661975, 3006.6977682143233],
-  [4437.623842661975, 2841.0977682143234],
-  [4338.323842661975, 2675.4977682143235],
-  [4338.323842661975, 2509.8977682143236],
-  [4239.023842661974, 2675.4977682143235],
-  [4139.723842661974, 2509.8977682143236],
-  [4040.4238426619745, 2344.2977682143237],
-  [4139.723842661974, 2178.697768214324],
-  [4239.023842661974, 2178.697768214324],
-  [4139.723842661974, 2344.2977682143237],
-  [4040.4238426619745, 2178.697768214324],
-  [4139.723842661974, 2013.0977682143237],
-  [4139.723842661974, 1847.4977682143235],
-  [4239.023842661974, 2013.0977682143237],
-  [4239.023842661974, 1847.4977682143235],
-  [4338.323842661975, 1847.4977682143235],
-  [4437.623842661975, 1847.4977682143235],
-  [4536.923842661975, 1681.8977682143234],
-  [4437.623842661975, 1516.2977682143232],
-  [4536.923842661975, 1516.2977682143232],
-  [4536.923842661975, 1350.697768214323],
-  [4437.623842661975, 1350.697768214323],
-  [4536.923842661975, 1185.097768214323],
-  [4636.223842661975, 1019.497768214323],
-  [4536.923842661975, 853.897768214323],
-  [4636.223842661975, 853.897768214323],
-  [4735.523842661975, 688.2977682143231],
-  [4636.223842661975, 522.6977682143232],
-  [4636.223842661975, 357.09776821432325],
-  [4735.523842661975, 357.09776821432325],
-  [4735.523842661975, 522.6977682143232],
-  [4636.223842661975, 688.2977682143231],
-  [4735.523842661975, 853.897768214323],
-  [4834.8238426619755, 853.897768214323],
-  [4735.523842661975, 1019.497768214323],
-  [4735.523842661975, 1185.097768214323],
-  [4735.523842661975, 1350.697768214323],
-  [4834.8238426619755, 1516.2977682143232],
-  [4735.523842661975, 1516.2977682143232],
-  [4834.8238426619755, 1350.697768214323],
-  [4834.8238426619755, 1185.097768214323],
-  [4934.123842661976, 1350.697768214323],
-  [5033.423842661976, 1185.097768214323],
-  [5033.423842661976, 1019.497768214323],
-  [5033.423842661976, 853.897768214323],
-  [4934.123842661976, 853.897768214323],
-  [4934.123842661976, 1019.497768214323],
-  [4834.8238426619755, 1019.497768214323],
-  [4934.123842661976, 1185.097768214323],
-  [5033.423842661976, 1350.697768214323],
-  [5132.723842661976, 1350.697768214323],
-  [5132.723842661976, 1185.097768214323],
-  [5232.023842661976, 1019.497768214323],
-  [5232.023842661976, 1185.097768214323],
-  [5331.323842661976, 1019.497768214323],
-  [5430.623842661977, 1019.497768214323],
-  [5529.923842661977, 1185.097768214323],
-  [5430.623842661977, 1350.697768214323],
-  [5430.623842661977, 1516.2977682143232],
-  [5529.923842661977, 1350.697768214323],
-  [5629.223842661977, 1350.697768214323],
-  [5728.523842661977, 1350.697768214323],
-  [5728.523842661977, 1516.2977682143232],
-  [5728.523842661977, 1681.8977682143234],
-  [5629.223842661977, 1516.2977682143232],
-  [5529.923842661977, 1516.2977682143232],
-  [5629.223842661977, 1681.8977682143234],
-  [5529.923842661977, 1681.8977682143234],
-  [5430.623842661977, 1847.4977682143235],
-  [5331.323842661976, 1847.4977682143235],
-  [5331.323842661976, 2013.0977682143237],
-  [5232.023842661976, 2178.697768214324],
-  [5132.723842661976, 2013.0977682143237],
-  [5132.723842661976, 2178.697768214324],
-  [5232.023842661976, 2013.0977682143237],
-  [5232.023842661976, 1847.4977682143235],
-  [5232.023842661976, 1681.8977682143234],
-  [5331.323842661976, 1681.8977682143234],
-  [5331.323842661976, 1516.2977682143232],
-  [5331.323842661976, 1350.697768214323],
-  [5232.023842661976, 1350.697768214323],
-  [5232.023842661976, 1516.2977682143232],
-  [5132.723842661976, 1516.2977682143232],
-  [5132.723842661976, 1681.8977682143234],
-  [5033.423842661976, 1847.4977682143235],
-  [5132.723842661976, 1847.4977682143235],
-  [5033.423842661976, 2013.0977682143237],
-  [4934.123842661976, 2178.697768214324],
-  [5033.423842661976, 2344.2977682143237],
-  [4934.123842661976, 2344.2977682143237],
-  [4834.8238426619755, 2178.697768214324],
-  [4834.8238426619755, 2344.2977682143237],
-  [4735.523842661975, 2344.2977682143237],
-  [4636.223842661975, 2344.2977682143237],
-  [4536.923842661975, 2178.697768214324],
-  [4437.623842661975, 2013.0977682143237],
-  [4338.323842661975, 2178.697768214324],
-  [4437.623842661975, 2344.2977682143237],
-  [4536.923842661975, 2509.8977682143236],
-  [4636.223842661975, 2675.4977682143235],
-  [4636.223842661975, 2509.8977682143236],
-  [4536.923842661975, 2675.4977682143235],
-  [4636.223842661975, 2841.0977682143234],
-  [4536.923842661975, 2841.0977682143234],
-  [4636.223842661975, 3006.6977682143233],
-  [4735.523842661975, 3172.2977682143232],
-  [4834.8238426619755, 3006.6977682143233],
-  [4735.523842661975, 2841.0977682143234],
-  [4735.523842661975, 3006.6977682143233],
-  [4636.223842661975, 3172.2977682143232],
-  [4735.523842661975, 3337.897768214323],
-  [4834.8238426619755, 3503.497768214323],
-  [4735.523842661975, 3669.097768214323],
-  [4834.8238426619755, 3834.697768214323],
-  [4834.8238426619755, 3669.097768214323],
-  [4934.123842661976, 3503.497768214323],
-  [5033.423842661976, 3503.497768214323],
-  [5033.423842661976, 3337.897768214323],
-  [4934.123842661976, 3337.897768214323],
-  [4834.8238426619755, 3172.2977682143232],
-  [4834.8238426619755, 3337.897768214323],
-  [4934.123842661976, 3172.2977682143232],
-  [5033.423842661976, 3006.6977682143233],
-  [5132.723842661976, 2841.0977682143234],
-  [5132.723842661976, 3006.6977682143233],
-  [5232.023842661976, 3172.2977682143232],
-  [5232.023842661976, 3337.897768214323],
-  [5132.723842661976, 3337.897768214323],
-  [5232.023842661976, 3503.497768214323],
-  [5331.323842661976, 3337.897768214323],
-  [5331.323842661976, 3503.497768214323],
-  [5430.623842661977, 3669.097768214323],
-  [5331.323842661976, 3669.097768214323],
-  [5430.623842661977, 3503.497768214323],
-  [5430.623842661977, 3337.897768214323],
-  [5529.923842661977, 3172.2977682143232],
-  [5529.923842661977, 3337.897768214323],
-  [5629.223842661977, 3337.897768214323],
-  [5728.523842661977, 3337.897768214323],
-  [5728.523842661977, 3503.497768214323],
-  [5827.823842661977, 3503.497768214323],
-  [5927.1238426619775, 3669.097768214323],
-  [6026.423842661978, 3669.097768214323],
-  [6125.723842661978, 3503.497768214323],
-  [6125.723842661978, 3669.097768214323],
-  [6225.023842661978, 3503.497768214323],
-  [6225.023842661978, 3337.897768214323],
-  [6324.323842661978, 3337.897768214323],
-  [6423.623842661978, 3503.497768214323],
-  [6324.323842661978, 3669.097768214323],
-  [6225.023842661978, 3669.097768214323],
-  [6324.323842661978, 3834.697768214323],
-  [6423.623842661978, 3834.697768214323],
-  [6324.323842661978, 4000.297768214323],
-  [6225.023842661978, 3834.697768214323],
-  [6125.723842661978, 3834.697768214323],
-  [6125.723842661978, 4000.297768214323],
-  [6225.023842661978, 4000.297768214323],
-  [6225.023842661978, 4165.897768214322],
-  [6225.023842661978, 4331.497768214322],
-  [6125.723842661978, 4165.897768214322],
-  [6026.423842661978, 4000.2977682143223],
-  [5927.1238426619775, 4165.897768214322],
-  [6026.423842661978, 4331.497768214322],
-  [6026.423842661978, 4497.097768214321],
-  [5927.1238426619775, 4497.097768214321],
-  [5827.823842661977, 4662.697768214321],
-  [5728.523842661977, 4828.29776821432],
-  [5827.823842661977, 4828.29776821432],
-  [5927.1238426619775, 4828.29776821432],
-  [5927.1238426619775, 4662.697768214321],
-  [5827.823842661977, 4497.097768214321],
-  [5927.1238426619775, 4331.497768214322],
-  [5827.823842661977, 4165.897768214322],
-  [5728.523842661977, 4331.497768214322],
-  [5728.523842661977, 4165.897768214322],
-  [5629.223842661977, 4000.2977682143223],
-  [5629.223842661977, 3834.6977682143224],
-  [5529.923842661977, 3669.0977682143225],
-  [5629.223842661977, 3503.4977682143226],
-  [5728.523842661977, 3669.0977682143225],
-  [5827.823842661977, 3669.0977682143225],
-  [5927.1238426619775, 3834.6977682143224],
-  [5927.1238426619775, 4000.2977682143223],
-  [6026.423842661978, 4165.897768214322],
-  [6125.723842661978, 4331.497768214322],
-  [6225.023842661978, 4497.097768214321],
-  [6225.023842661978, 4662.697768214321],
-  [6324.323842661978, 4662.697768214321],
-  [6225.023842661978, 4828.29776821432],
-  [6324.323842661978, 4828.29776821432],
-  [6423.623842661978, 4828.29776821432],
-  [6324.323842661978, 4993.8977682143195],
-  [6225.023842661978, 5159.497768214319],
-  [6125.723842661978, 5159.497768214319],
-  [6026.423842661978, 5325.097768214318],
-  [5927.1238426619775, 5490.697768214318],
-  [6026.423842661978, 5656.297768214317],
-  [5927.1238426619775, 5821.897768214317],
-  [5927.1238426619775, 5987.497768214316],
-  [6026.423842661978, 5987.497768214316],
-  [6026.423842661978, 5821.897768214317],
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-  [775.6759911280789, 4008.3700224365043],
-  [874.9759911280789, 3842.7700224365044],
-  [974.275991128079, 3677.1700224365045],
-  [974.275991128079, 3511.5700224365046],
-  [1073.575991128079, 3345.9700224365047],
-  [1172.875991128079, 3180.3700224365048],
-  [1272.175991128079, 3180.3700224365048],
-  [1272.175991128079, 3345.9700224365047],
-  [1371.475991128079, 3180.3700224365048],
-  [1470.7759911280789, 3345.9700224365047],
-  [1371.475991128079, 3345.9700224365047],
-  [1371.475991128079, 3511.5700224365046],
-  [1470.7759911280789, 3511.5700224365046],
-  [1570.0759911280788, 3677.1700224365045],
-  [1470.7759911280789, 3677.1700224365045],
-  [1570.0759911280788, 3511.5700224365046],
-  [1669.3759911280788, 3511.5700224365046],
-  [1669.3759911280788, 3677.1700224365045],
-  [1768.6759911280787, 3842.7700224365044],
-  [1669.3759911280788, 3842.7700224365044],
-  [1768.6759911280787, 4008.3700224365043],
-  [1867.9759911280787, 3842.7700224365044],
-  [1967.2759911280787, 3677.1700224365045],
-  [2066.5759911280784, 3842.7700224365044],
-  [2165.875991128078, 3677.1700224365045],
-  [2066.5759911280784, 3511.5700224365046],
-  [2165.875991128078, 3511.5700224365046],
-  [2066.5759911280784, 3677.1700224365045],
-  [2165.875991128078, 3842.7700224365044],
-  [2265.175991128078, 4008.3700224365043],
-  [2364.4759911280776, 4008.3700224365043],
-  [2265.175991128078, 3842.7700224365044],
-  [2364.4759911280776, 3677.1700224365045],
-  [2463.7759911280773, 3842.7700224365044],
-  [2463.7759911280773, 4008.3700224365043],
-  [2364.4759911280776, 3842.7700224365044]
-];
-
-main() {
-  for (int i = 0; i < 20; i++) {
-    var y = panels.length;
-  }
-}
diff --git a/tests/language_2/unsorted/larger_implicit_getter_test.dart b/tests/language_2/unsorted/larger_implicit_getter_test.dart
deleted file mode 100644
index 99d0781f7e5..00000000000
--- a/tests/language_2/unsorted/larger_implicit_getter_test.dart
+++ /dev/null
@@ -1,4102 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for testing compilation of large implicit getters.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-List<List> panels = [
-  [6853.940039224797, 6050.837897021371],
-  [6953.240039224797, 6050.837897021371],
-  [7052.5400392247975, 5885.237897021371],
-  [7052.5400392247975, 5719.637897021372],
-  [7151.840039224798, 5885.237897021371],
-  [7052.5400392247975, 6050.837897021371],
-  [7052.5400392247975, 6216.43789702137],
-  [7052.5400392247975, 6382.03789702137],
-  [6953.240039224797, 6382.03789702137],
-  [6953.240039224797, 6216.43789702137],
-  [6853.940039224797, 6216.43789702137],
-  [6853.940039224797, 6382.03789702137],
-  [6754.640039224797, 6216.43789702137],
-  [6754.640039224797, 6382.03789702137],
-  [6754.640039224797, 6547.637897021369],
-  [6754.640039224797, 6713.237897021369],
-  [6655.340039224797, 6713.237897021369],
-  [6754.640039224797, 6878.837897021368],
-  [6853.940039224797, 6713.237897021369],
-  [6853.940039224797, 6878.837897021368],
-  [6953.240039224797, 6713.237897021369],
-  [7052.5400392247975, 6547.637897021369],
-  [7151.840039224798, 6713.237897021369],
-  [7151.840039224798, 6547.637897021369],
-  [7151.840039224798, 6382.03789702137],
-  [7251.140039224798, 6547.637897021369],
-  [7251.140039224798, 6713.237897021369],
-  [7350.440039224798, 6878.837897021368],
-  [7449.740039224798, 6878.837897021368],
-  [7449.740039224798, 6713.237897021369],
-  [7549.040039224798, 6547.637897021369],
-  [7449.740039224798, 6382.03789702137],
-  [7449.740039224798, 6216.43789702137],
-  [7549.040039224798, 6050.837897021371],
-  [7648.340039224799, 6216.43789702137],
-  [7549.040039224798, 6382.03789702137],
-  [7648.340039224799, 6382.03789702137],
-  [7747.640039224799, 6216.43789702137],
-  [7846.940039224799, 6382.03789702137],
-  [7946.240039224799, 6382.03789702137],
-  [7946.240039224799, 6547.637897021369],
-  [7846.940039224799, 6713.237897021369],
-  [7946.240039224799, 6713.237897021369],
-  [8045.540039224799, 6547.637897021369],
-  [8045.540039224799, 6713.237897021369],
-  [7946.240039224799, 6878.837897021368],
-  [7946.240039224799, 7044.4378970213675],
-  [8045.540039224799, 7210.037897021367],
-  [8144.8400392247995, 7375.637897021366],
-  [8144.8400392247995, 7541.237897021366],
-  [8045.540039224799, 7375.637897021366],
-  [8144.8400392247995, 7210.037897021367],
-  [8045.540039224799, 7044.4378970213675],
-  [7946.240039224799, 7210.037897021367],
-  [7846.940039224799, 7210.037897021367],
-  [7946.240039224799, 7375.637897021366],
-  [8045.540039224799, 7541.237897021366],
-  [8144.8400392247995, 7706.837897021365],
-  [8244.1400392248, 7541.237897021366],
-  [8343.4400392248, 7541.237897021366],
-  [8343.4400392248, 7706.837897021365],
-  [8244.1400392248, 7706.837897021365],
-  [4735.523842661975, 3503.497768214323],
-  [4636.223842661975, 3337.897768214323],
-  [4536.923842661975, 3337.897768214323],
-  [4437.623842661975, 3172.2977682143232],
-  [4338.323842661975, 3172.2977682143232],
-  [4239.023842661974, 3172.2977682143232],
-  [4338.323842661975, 3006.6977682143233],
-  [4437.623842661975, 2841.0977682143234],
-  [4338.323842661975, 2675.4977682143235],
-  [4338.323842661975, 2509.8977682143236],
-  [4239.023842661974, 2675.4977682143235],
-  [4139.723842661974, 2509.8977682143236],
-  [4040.4238426619745, 2344.2977682143237],
-  [4139.723842661974, 2178.697768214324],
-  [4239.023842661974, 2178.697768214324],
-  [4139.723842661974, 2344.2977682143237],
-  [4040.4238426619745, 2178.697768214324],
-  [4139.723842661974, 2013.0977682143237],
-  [4139.723842661974, 1847.4977682143235],
-  [4239.023842661974, 2013.0977682143237],
-  [4239.023842661974, 1847.4977682143235],
-  [4338.323842661975, 1847.4977682143235],
-  [4437.623842661975, 1847.4977682143235],
-  [4536.923842661975, 1681.8977682143234],
-  [4437.623842661975, 1516.2977682143232],
-  [4536.923842661975, 1516.2977682143232],
-  [4536.923842661975, 1350.697768214323],
-  [4437.623842661975, 1350.697768214323],
-  [4536.923842661975, 1185.097768214323],
-  [4636.223842661975, 1019.497768214323],
-  [4536.923842661975, 853.897768214323],
-  [4636.223842661975, 853.897768214323],
-  [4735.523842661975, 688.2977682143231],
-  [4636.223842661975, 522.6977682143232],
-  [4636.223842661975, 357.09776821432325],
-  [4735.523842661975, 357.09776821432325],
-  [4735.523842661975, 522.6977682143232],
-  [4636.223842661975, 688.2977682143231],
-  [4735.523842661975, 853.897768214323],
-  [4834.8238426619755, 853.897768214323],
-  [4735.523842661975, 1019.497768214323],
-  [4735.523842661975, 1185.097768214323],
-  [4735.523842661975, 1350.697768214323],
-  [4834.8238426619755, 1516.2977682143232],
-  [4735.523842661975, 1516.2977682143232],
-  [4834.8238426619755, 1350.697768214323],
-  [4834.8238426619755, 1185.097768214323],
-  [4934.123842661976, 1350.697768214323],
-  [5033.423842661976, 1185.097768214323],
-  [5033.423842661976, 1019.497768214323],
-  [5033.423842661976, 853.897768214323],
-  [4934.123842661976, 853.897768214323],
-  [4934.123842661976, 1019.497768214323],
-  [4834.8238426619755, 1019.497768214323],
-  [4934.123842661976, 1185.097768214323],
-  [5033.423842661976, 1350.697768214323],
-  [5132.723842661976, 1350.697768214323],
-  [5132.723842661976, 1185.097768214323],
-  [5232.023842661976, 1019.497768214323],
-  [5232.023842661976, 1185.097768214323],
-  [5331.323842661976, 1019.497768214323],
-  [5430.623842661977, 1019.497768214323],
-  [5529.923842661977, 1185.097768214323],
-  [5430.623842661977, 1350.697768214323],
-  [5430.623842661977, 1516.2977682143232],
-  [5529.923842661977, 1350.697768214323],
-  [5629.223842661977, 1350.697768214323],
-  [5728.523842661977, 1350.697768214323],
-  [5728.523842661977, 1516.2977682143232],
-  [5728.523842661977, 1681.8977682143234],
-  [5629.223842661977, 1516.2977682143232],
-  [5529.923842661977, 1516.2977682143232],
-  [5629.223842661977, 1681.8977682143234],
-  [5529.923842661977, 1681.8977682143234],
-  [5430.623842661977, 1847.4977682143235],
-  [5331.323842661976, 1847.4977682143235],
-  [5331.323842661976, 2013.0977682143237],
-  [5232.023842661976, 2178.697768214324],
-  [5132.723842661976, 2013.0977682143237],
-  [5132.723842661976, 2178.697768214324],
-  [5232.023842661976, 2013.0977682143237],
-  [5232.023842661976, 1847.4977682143235],
-  [5232.023842661976, 1681.8977682143234],
-  [5331.323842661976, 1681.8977682143234],
-  [5331.323842661976, 1516.2977682143232],
-  [5331.323842661976, 1350.697768214323],
-  [5232.023842661976, 1350.697768214323],
-  [5232.023842661976, 1516.2977682143232],
-  [5132.723842661976, 1516.2977682143232],
-  [5132.723842661976, 1681.8977682143234],
-  [5033.423842661976, 1847.4977682143235],
-  [5132.723842661976, 1847.4977682143235],
-  [5033.423842661976, 2013.0977682143237],
-  [4934.123842661976, 2178.697768214324],
-  [5033.423842661976, 2344.2977682143237],
-  [4934.123842661976, 2344.2977682143237],
-  [4834.8238426619755, 2178.697768214324],
-  [4834.8238426619755, 2344.2977682143237],
-  [4735.523842661975, 2344.2977682143237],
-  [4636.223842661975, 2344.2977682143237],
-  [4536.923842661975, 2178.697768214324],
-  [4437.623842661975, 2013.0977682143237],
-  [4338.323842661975, 2178.697768214324],
-  [4437.623842661975, 2344.2977682143237],
-  [4536.923842661975, 2509.8977682143236],
-  [4636.223842661975, 2675.4977682143235],
-  [4636.223842661975, 2509.8977682143236],
-  [4536.923842661975, 2675.4977682143235],
-  [4636.223842661975, 2841.0977682143234],
-  [4536.923842661975, 2841.0977682143234],
-  [4636.223842661975, 3006.6977682143233],
-  [4735.523842661975, 3172.2977682143232],
-  [4834.8238426619755, 3006.6977682143233],
-  [4735.523842661975, 2841.0977682143234],
-  [4735.523842661975, 3006.6977682143233],
-  [4636.223842661975, 3172.2977682143232],
-  [4735.523842661975, 3337.897768214323],
-  [4834.8238426619755, 3503.497768214323],
-  [4735.523842661975, 3669.097768214323],
-  [4834.8238426619755, 3834.697768214323],
-  [4834.8238426619755, 3669.097768214323],
-  [4934.123842661976, 3503.497768214323],
-  [5033.423842661976, 3503.497768214323],
-  [5033.423842661976, 3337.897768214323],
-  [4934.123842661976, 3337.897768214323],
-  [4834.8238426619755, 3172.2977682143232],
-  [4834.8238426619755, 3337.897768214323],
-  [4934.123842661976, 3172.2977682143232],
-  [5033.423842661976, 3006.6977682143233],
-  [5132.723842661976, 2841.0977682143234],
-  [5132.723842661976, 3006.6977682143233],
-  [5232.023842661976, 3172.2977682143232],
-  [5232.023842661976, 3337.897768214323],
-  [5132.723842661976, 3337.897768214323],
-  [5232.023842661976, 3503.497768214323],
-  [5331.323842661976, 3337.897768214323],
-  [5331.323842661976, 3503.497768214323],
-  [5430.623842661977, 3669.097768214323],
-  [5331.323842661976, 3669.097768214323],
-  [5430.623842661977, 3503.497768214323],
-  [5430.623842661977, 3337.897768214323],
-  [5529.923842661977, 3172.2977682143232],
-  [5529.923842661977, 3337.897768214323],
-  [5629.223842661977, 3337.897768214323],
-  [5728.523842661977, 3337.897768214323],
-  [5728.523842661977, 3503.497768214323],
-  [5827.823842661977, 3503.497768214323],
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-  [6125.723842661978, 3503.497768214323],
-  [6125.723842661978, 3669.097768214323],
-  [6225.023842661978, 3503.497768214323],
-  [6225.023842661978, 3337.897768214323],
-  [6324.323842661978, 3337.897768214323],
-  [6423.623842661978, 3503.497768214323],
-  [6324.323842661978, 3669.097768214323],
-  [6225.023842661978, 3669.097768214323],
-  [6324.323842661978, 3834.697768214323],
-  [6423.623842661978, 3834.697768214323],
-  [6324.323842661978, 4000.297768214323],
-  [6225.023842661978, 3834.697768214323],
-  [6125.723842661978, 3834.697768214323],
-  [6125.723842661978, 4000.297768214323],
-  [6225.023842661978, 4000.297768214323],
-  [6225.023842661978, 4165.897768214322],
-  [6225.023842661978, 4331.497768214322],
-  [6125.723842661978, 4165.897768214322],
-  [6026.423842661978, 4000.2977682143223],
-  [5927.1238426619775, 4165.897768214322],
-  [6026.423842661978, 4331.497768214322],
-  [6026.423842661978, 4497.097768214321],
-  [5927.1238426619775, 4497.097768214321],
-  [5827.823842661977, 4662.697768214321],
-  [5728.523842661977, 4828.29776821432],
-  [5827.823842661977, 4828.29776821432],
-  [5927.1238426619775, 4828.29776821432],
-  [5927.1238426619775, 4662.697768214321],
-  [5827.823842661977, 4497.097768214321],
-  [5927.1238426619775, 4331.497768214322],
-  [5827.823842661977, 4165.897768214322],
-  [5728.523842661977, 4331.497768214322],
-  [5728.523842661977, 4165.897768214322],
-  [5629.223842661977, 4000.2977682143223],
-  [5629.223842661977, 3834.6977682143224],
-  [5529.923842661977, 3669.0977682143225],
-  [5629.223842661977, 3503.4977682143226],
-  [5728.523842661977, 3669.0977682143225],
-  [5827.823842661977, 3669.0977682143225],
-  [5927.1238426619775, 3834.6977682143224],
-  [5927.1238426619775, 4000.2977682143223],
-  [6026.423842661978, 4165.897768214322],
-  [6125.723842661978, 4331.497768214322],
-  [6225.023842661978, 4497.097768214321],
-  [6225.023842661978, 4662.697768214321],
-  [6324.323842661978, 4662.697768214321],
-  [6225.023842661978, 4828.29776821432],
-  [6324.323842661978, 4828.29776821432],
-  [6423.623842661978, 4828.29776821432],
-  [6324.323842661978, 4993.8977682143195],
-  [6225.023842661978, 5159.497768214319],
-  [6125.723842661978, 5159.497768214319],
-  [6026.423842661978, 5325.097768214318],
-  [5927.1238426619775, 5490.697768214318],
-  [6026.423842661978, 5656.297768214317],
-  [5927.1238426619775, 5821.897768214317],
-  [5927.1238426619775, 5987.497768214316],
-  [6026.423842661978, 5987.497768214316],
-  [6026.423842661978, 5821.897768214317],
-  [5927.1238426619775, 5656.297768214317],
-  [5827.823842661977, 5656.297768214317],
-  [5827.823842661977, 5490.697768214318],
-  [5728.523842661977, 5490.697768214318],
-  [5629.223842661977, 5325.097768214318],
-  [5629.223842661977, 5159.497768214319],
-  [5529.923842661977, 4993.8977682143195],
-  [5529.923842661977, 5159.497768214319],
-  [5629.223842661977, 4993.8977682143195],
-  [5629.223842661977, 4828.29776821432],
-  [5529.923842661977, 4662.697768214321],
-  [5430.623842661977, 4828.29776821432],
-  [5529.923842661977, 4828.29776821432],
-  [5629.223842661977, 4662.697768214321],
-  [5728.523842661977, 4662.697768214321],
-  [5629.223842661977, 4497.097768214321],
-  [5728.523842661977, 4497.097768214321],
-  [5827.823842661977, 4331.497768214322],
-  [10216.161365168813, 2951.605409896135],
-  [10116.861365168812, 2951.605409896135],
-  [10017.56136516881, 3117.205409896135],
-  [9918.26136516881, 3117.205409896135],
-  [9818.961365168809, 3117.205409896135],
-  [9719.661365168808, 3282.8054098961347],
-  [9620.361365168807, 3282.8054098961347],
-  [9620.361365168807, 3117.205409896135],
-  [9521.061365168805, 2951.605409896135],
-  [9521.061365168805, 2786.005409896135],
-  [9620.361365168807, 2786.005409896135],
-  [9719.661365168808, 2786.005409896135],
-  [9818.961365168809, 2620.405409896135],
-  [9918.26136516881, 2786.005409896135],
-  [9818.961365168809, 2951.605409896135],
-  [9818.961365168809, 2786.005409896135],
-  [9719.661365168808, 2620.405409896135],
-  [9719.661365168808, 2454.805409896135],
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-  [80.69443543747111, 1154.3681204032646],
-  [179.9944354374711, 988.7681204032646],
-  [279.2944354374711, 823.1681204032647],
-  [378.5944354374711, 657.5681204032647],
-  [378.5944354374711, 823.1681204032647],
-  [477.89443543747103, 823.1681204032647],
-  [477.89443543747103, 657.5681204032647],
-  [378.5944354374711, 491.9681204032648],
-  [477.89443543747103, 326.3681204032648],
-  [477.89443543747103, 160.76812040326482],
-  [378.5944354374711, 160.76812040326482],
-  [279.2944354374711, 326.3681204032648],
-  [179.99443543747114, 491.9681204032648],
-  [179.99443543747114, 326.3681204032648],
-  [279.2944354374711, 491.9681204032648],
-  [279.2944354374711, 657.5681204032647],
-  [179.99443543747114, 823.1681204032647],
-  [279.2944354374711, 988.7681204032646],
-  [279.2944354374711, 1154.3681204032646],
-  [378.5944354374711, 1319.9681204032647],
-  [477.89443543747103, 1485.5681204032649],
-  [577.194435437471, 1651.168120403265],
-  [676.4944354374711, 1651.168120403265],
-  [775.7944354374712, 1816.7681204032651],
-  [676.4944354374711, 1816.7681204032651],
-  [775.7944354374712, 1651.168120403265],
-  [875.0944354374712, 1651.168120403265],
-  [974.3944354374713, 1651.168120403265],
-  [875.0944354374712, 1485.5681204032649],
-  [775.7944354374712, 1485.5681204032649],
-  [676.4944354374711, 1485.5681204032649],
-  [775.7944354374712, 1319.9681204032647],
-  [676.4944354374711, 1154.3681204032646],
-  [3138.413562431697, 2355.845602060523],
-  [3039.113562431697, 2521.445602060523],
-  [3039.113562431697, 2355.845602060523],
-  [3039.113562431697, 2190.245602060523],
-  [3138.413562431697, 2024.645602060523],
-  [3237.7135624316966, 1859.045602060523],
-  [3237.7135624316966, 2024.645602060523],
-  [3337.0135624316963, 1859.045602060523],
-  [3337.0135624316963, 1693.4456020605228],
-  [3436.313562431696, 1527.8456020605227],
-  [3535.6135624316958, 1693.4456020605228],
-  [3535.6135624316958, 1859.045602060523],
-  [3634.9135624316955, 2024.645602060523],
-  [3734.213562431695, 2190.245602060523],
-  [3634.9135624316955, 2190.245602060523],
-  [3535.6135624316958, 2190.245602060523],
-  [3535.6135624316958, 2355.845602060523],
-  [3535.6135624316958, 2521.445602060523],
-  [3436.313562431696, 2687.045602060523],
-  [3436.313562431696, 2852.645602060523],
-  [3535.6135624316958, 2687.045602060523],
-  [3634.9135624316955, 2521.445602060523],
-  [3634.9135624316955, 2355.845602060523],
-  [3734.213562431695, 2355.845602060523],
-  [3833.513562431695, 2190.245602060523],
-  [3932.8135624316947, 2024.645602060523],
-  [3833.513562431695, 1859.045602060523],
-  [3833.513562431695, 1693.4456020605228],
-  [3734.213562431695, 1859.045602060523],
-  [3734.213562431695, 1693.4456020605228],
-  [3734.213562431695, 1527.8456020605227],
-  [3634.9135624316955, 1527.8456020605227],
-  [3634.9135624316955, 1693.4456020605228],
-  [3535.6135624316958, 1527.8456020605227],
-  [3634.9135624316955, 1362.2456020605225],
-  [3535.6135624316958, 1362.2456020605225],
-  [3436.313562431696, 1196.6456020605224],
-  [3535.6135624316958, 1196.6456020605224],
-  [3535.6135624316958, 1031.0456020605222],
-  [3436.313562431696, 1031.0456020605222],
-  [3535.6135624316958, 865.4456020605222],
-  [3436.313562431696, 865.4456020605222],
-  [3535.6135624316958, 699.8456020605223],
-  [3634.9135624316955, 699.8456020605223],
-  [3535.6135624316958, 534.2456020605224],
-  [3436.313562431696, 368.64560206052244],
-  [3436.313562431696, 203.04560206052244],
-  [3337.0135624316963, 37.445602060522454],
-  [3436.313562431696, 37.445602060522454],
-  [3337.0135624316963, 203.04560206052244],
-  [3237.7135624316966, 37.445602060522454],
-  [3138.413562431697, 37.445602060522454],
-  [3237.7135624316966, 203.04560206052244],
-  [3337.0135624316963, 368.6456020605224],
-  [3436.313562431696, 534.2456020605224],
-  [3337.0135624316963, 699.8456020605223],
-  [3237.7135624316966, 534.2456020605224],
-  [3337.0135624316963, 534.2456020605224],
-  [3436.313562431696, 699.8456020605223],
-  [3337.0135624316963, 865.4456020605222],
-  [3237.7135624316966, 865.4456020605222],
-  [3337.0135624316963, 1031.0456020605222],
-  [3237.7135624316966, 1196.6456020605224],
-  [3138.413562431697, 1362.2456020605225],
-  [3039.113562431697, 1527.8456020605227],
-  [3138.413562431697, 1527.8456020605227],
-  [3039.113562431697, 1693.4456020605228],
-  [2939.8135624316974, 1527.8456020605227],
-  [2840.5135624316977, 1362.2456020605225],
-  [2840.5135624316977, 1527.8456020605227],
-  [2840.5135624316977, 1693.4456020605228],
-  [2939.8135624316974, 1859.045602060523],
-  [2840.5135624316977, 2024.645602060523],
-  [2840.5135624316977, 1859.045602060523],
-  [2939.8135624316974, 1693.4456020605228],
-  [3039.113562431697, 1859.045602060523],
-  [3039.113562431697, 2024.645602060523],
-  [2939.8135624316974, 2190.245602060523],
-  [2939.8135624316974, 2024.645602060523],
-  [16388.412117675925, 1839.818884803299],
-  [16289.112117675924, 1839.818884803299],
-  [16388.412117675925, 1674.2188848032988],
-  [16487.712117675925, 1508.6188848032987],
-  [16487.712117675925, 1674.2188848032988],
-  [16388.412117675925, 1508.6188848032987],
-  [16289.112117675924, 1343.0188848032985],
-  [16289.112117675924, 1508.6188848032987],
-  [16189.812117675923, 1674.2188848032988],
-  [16090.512117675922, 1839.818884803299],
-  [16090.512117675922, 2005.418884803299],
-  [15991.212117675921, 2171.018884803299],
-  [16090.512117675922, 2336.618884803299],
-  [16090.512117675922, 2502.218884803299],
-  [16090.512117675922, 2667.8188848032987],
-  [15991.212117675921, 2833.4188848032986],
-  [15991.212117675921, 2999.0188848032985],
-  [15891.91211767592, 3164.6188848032984],
-  [15891.91211767592, 3330.2188848032984],
-  [15991.212117675921, 3330.2188848032984],
-  [16090.512117675922, 3330.2188848032984],
-  [16189.812117675923, 3495.8188848032983],
-  [16289.112117675924, 3495.8188848032983],
-  [16189.812117675923, 3330.2188848032984],
-  [16189.812117675923, 3164.6188848032984],
-  [16289.112117675924, 3164.6188848032984],
-  [16388.412117675925, 3164.6188848032984],
-  [16388.412117675925, 3330.2188848032984],
-  [16487.712117675925, 3330.2188848032984],
-  [16587.012117675924, 3495.8188848032983],
-  [16587.012117675924, 3661.418884803298],
-  [16686.312117675923, 3661.418884803298],
-  [16785.612117675922, 3661.418884803298],
-  [16884.91211767592, 3661.418884803298],
-  [16984.21211767592, 3661.418884803298],
-  [16884.91211767592, 3827.018884803298],
-  [16884.91211767592, 3992.618884803298],
-  [16984.21211767592, 3827.018884803298],
-  [17083.51211767592, 3661.418884803298],
-  [17182.81211767592, 3495.8188848032983],
-  [17182.81211767592, 3330.2188848032984],
-  [17282.11211767592, 3164.6188848032984],
-  [17282.11211767592, 3330.2188848032984],
-  [17182.81211767592, 3164.6188848032984],
-  [17083.51211767592, 3164.6188848032984],
-  [16984.21211767592, 3330.2188848032984],
-  [16984.21211767592, 3495.8188848032983],
-  [17083.51211767592, 3330.2188848032984],
-  [16984.21211767592, 3164.6188848032984],
-  [16984.21211767592, 2999.0188848032985],
-  [17083.51211767592, 2833.4188848032986],
-  [17083.51211767592, 2667.8188848032987],
-  [17182.81211767592, 2667.8188848032987],
-  [17182.81211767592, 2833.4188848032986],
-  [17083.51211767592, 2999.0188848032985],
-  [16984.21211767592, 2833.4188848032986],
-  [16884.91211767592, 2833.4188848032986],
-  [16884.91211767592, 2999.0188848032985],
-  [16785.612117675922, 2999.0188848032985],
-  [16884.91211767592, 3164.6188848032984],
-  [16785.612117675922, 3164.6188848032984],
-  [16686.312117675923, 3164.6188848032984],
-  [16587.012117675924, 3164.6188848032984],
-  [16587.012117675924, 2999.0188848032985],
-  [16487.712117675925, 3164.6188848032984],
-  [16587.012117675924, 3330.2188848032984],
-  [16686.312117675923, 3495.8188848032983],
-  [16686.312117675923, 3330.2188848032984],
-  [16785.612117675922, 3330.2188848032984],
-  [16884.91211767592, 3495.8188848032983],
-  [16785.612117675922, 3495.8188848032983],
-  [16884.91211767592, 3330.2188848032984],
-  [1272.175991128079, 3842.7700224365044],
-  [1371.475991128079, 3842.7700224365044],
-  [1272.175991128079, 3677.1700224365045],
-  [1172.875991128079, 3511.5700224365046],
-  [1272.175991128079, 3511.5700224365046],
-  [1172.875991128079, 3345.9700224365047],
-  [1073.575991128079, 3180.3700224365048],
-  [1073.575991128079, 3014.770022436505],
-  [974.275991128079, 3014.770022436505],
-  [874.9759911280789, 3014.770022436505],
-  [775.6759911280789, 2849.170022436505],
-  [775.6759911280789, 3014.770022436505],
-  [775.6759911280789, 3180.3700224365048],
-  [676.3759911280788, 3345.9700224365047],
-  [676.3759911280788, 3511.5700224365046],
-  [775.6759911280789, 3677.1700224365045],
-  [676.3759911280788, 3842.7700224365044],
-  [577.0759911280787, 3842.7700224365044],
-  [577.0759911280787, 3677.1700224365045],
-  [676.3759911280788, 3677.1700224365045],
-  [775.6759911280789, 3511.5700224365046],
-  [775.6759911280789, 3345.9700224365047],
-  [874.9759911280789, 3345.9700224365047],
-  [874.9759911280789, 3180.3700224365048],
-  [974.275991128079, 3180.3700224365048],
-  [974.275991128079, 3345.9700224365047],
-  [1073.575991128079, 3511.5700224365046],
-  [1073.575991128079, 3677.1700224365045],
-  [1172.875991128079, 3677.1700224365045],
-  [1172.875991128079, 3842.7700224365044],
-  [1073.575991128079, 3842.7700224365044],
-  [1172.875991128079, 4008.3700224365043],
-  [1073.575991128079, 4008.3700224365043],
-  [974.275991128079, 3842.7700224365044],
-  [974.275991128079, 4008.3700224365043],
-  [874.9759911280789, 4008.3700224365043],
-  [775.6759911280789, 4008.3700224365043],
-  [874.9759911280789, 3842.7700224365044],
-  [974.275991128079, 3677.1700224365045],
-  [974.275991128079, 3511.5700224365046],
-  [1073.575991128079, 3345.9700224365047],
-  [1172.875991128079, 3180.3700224365048],
-  [1272.175991128079, 3180.3700224365048],
-  [1272.175991128079, 3345.9700224365047],
-  [1371.475991128079, 3180.3700224365048],
-  [1470.7759911280789, 3345.9700224365047],
-  [1371.475991128079, 3345.9700224365047],
-  [1371.475991128079, 3511.5700224365046],
-  [1470.7759911280789, 3511.5700224365046],
-  [1570.0759911280788, 3677.1700224365045],
-  [1470.7759911280789, 3677.1700224365045],
-  [1570.0759911280788, 3511.5700224365046],
-  [1669.3759911280788, 3511.5700224365046],
-  [1669.3759911280788, 3677.1700224365045],
-  [1768.6759911280787, 3842.7700224365044],
-  [1669.3759911280788, 3842.7700224365044],
-  [1768.6759911280787, 4008.3700224365043],
-  [1867.9759911280787, 3842.7700224365044],
-  [1967.2759911280787, 3677.1700224365045],
-  [2066.5759911280784, 3842.7700224365044],
-  [2165.875991128078, 3677.1700224365045],
-  [2066.5759911280784, 3511.5700224365046],
-  [2165.875991128078, 3511.5700224365046],
-  [2066.5759911280784, 3677.1700224365045],
-  [2165.875991128078, 3842.7700224365044],
-  [2265.175991128078, 4008.3700224365043],
-  [2364.4759911280776, 4008.3700224365043],
-  [2265.175991128078, 3842.7700224365044],
-  [2364.4759911280776, 3677.1700224365045],
-  [2463.7759911280773, 3842.7700224365044],
-  [2463.7759911280773, 4008.3700224365043],
-  [2364.4759911280776, 3842.7700224365044]
-];
-
-@pragma('dart2js:assumeDynamic')
-@pragma('dart2js:noInline')
-confuse(x) => x;
-
-main() {
-  print(confuse(panels).length);
-}
diff --git a/tests/language_2/unsorted/liveness_test.dart b/tests/language_2/unsorted/liveness_test.dart
deleted file mode 100644
index 33dde3bb038..00000000000
--- a/tests/language_2/unsorted/liveness_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program testing closures.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-foo(x) {
-  var y = x;
-  for (int i = 0; i < 10; i++) x++;
-  return y;
-}
-
-main() {
-  Expect.equals(499, foo(499));
-}
diff --git a/tests/language_2/unsorted/load_indexed_constant_test.dart b/tests/language_2/unsorted/load_indexed_constant_test.dart
deleted file mode 100644
index 64493175241..00000000000
--- a/tests/language_2/unsorted/load_indexed_constant_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test constant propagation of load-indexed operations
-// VMOptions=--optimization-counter-threshold=10
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  Expect.equals(101, stringIndexedLoad());
-  Expect.equals(102, arrayIndexedLoad());
-  for (int i = 0; i < 20; i++) {
-    stringIndexedLoad();
-    arrayIndexedLoad();
-  }
-  Expect.equals(101, stringIndexedLoad());
-  Expect.equals(102, arrayIndexedLoad());
-}
-
-stringIndexedLoad() => ("Hello").codeUnitAt(1);
-arrayIndexedLoad() => (const [101, 102, 103])[1];
diff --git a/tests/language_2/unsorted/local_var_in_annotation_test.dart b/tests/language_2/unsorted/local_var_in_annotation_test.dart
deleted file mode 100644
index c9e22e3eeb8..00000000000
--- a/tests/language_2/unsorted/local_var_in_annotation_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for https://github.com/dart-lang/sdk/issues/37065
-
-const x = 0;
-main(@x args) {
-  const z = 0;
-  foo(@z args) {}
-  bar(@x args) {}
-}
diff --git a/tests/language_2/unsorted/many_calls_test.dart b/tests/language_2/unsorted/many_calls_test.dart
deleted file mode 100644
index 9da3f6cbc97..00000000000
--- a/tests/language_2/unsorted/many_calls_test.dart
+++ /dev/null
@@ -1,225 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test megamorphic calls.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  A() {}
-  f1() {
-    return 1;
-  }
-
-  f2() {
-    return 2;
-  }
-
-  f3() {
-    return 3;
-  }
-
-  f4() {
-    return 4;
-  }
-
-  f5() {
-    return 5;
-  }
-
-  f6() {
-    return 6;
-  }
-
-  f7() {
-    return 7;
-  }
-
-  f8() {
-    return 8;
-  }
-
-  f9() {
-    return 9;
-  }
-
-  f11() {
-    return 11;
-  }
-
-  f12() {
-    return 12;
-  }
-
-  f13() {
-    return 13;
-  }
-
-  f14() {
-    return 14;
-  }
-
-  f15() {
-    return 15;
-  }
-
-  f16() {
-    return 16;
-  }
-
-  f17() {
-    return 17;
-  }
-
-  f18() {
-    return 18;
-  }
-
-  f19() {
-    return 19;
-  }
-
-  f20() {
-    return 20;
-  }
-
-  f21() {
-    return 21;
-  }
-
-  f22() {
-    return 22;
-  }
-
-  f23() {
-    return 23;
-  }
-
-  f24() {
-    return 24;
-  }
-
-  f25() {
-    return 25;
-  }
-
-  f26() {
-    return 26;
-  }
-
-  f27() {
-    return 27;
-  }
-
-  f28() {
-    return 28;
-  }
-
-  f29() {
-    return 29;
-  }
-
-  f30() {
-    return 30;
-  }
-
-  f31() {
-    return 31;
-  }
-
-  f32() {
-    return 32;
-  }
-
-  f33() {
-    return 33;
-  }
-
-  f34() {
-    return 34;
-  }
-
-  f35() {
-    return 35;
-  }
-
-  f36() {
-    return 36;
-  }
-
-  f37() {
-    return 37;
-  }
-
-  f38() {
-    return 38;
-  }
-
-  f39() {
-    return 39;
-  }
-}
-
-class B extends A {
-  B() : super() {}
-}
-
-class ManyCallsTest {
-  static testMain() {
-    var list = new List<dynamic>.filled(10, null);
-    for (int i = 0; i < (list.length ~/ 2); i++) {
-      list[i] = new A();
-    }
-    for (int i = (list.length ~/ 2); i < list.length; i++) {
-      list[i] = new B();
-    }
-    for (int loop = 0; loop < 7; loop++) {
-      for (int i = 0; i < list.length; i++) {
-        Expect.equals(1, list[i].f1());
-        Expect.equals(2, list[i].f2());
-        Expect.equals(3, list[i].f3());
-        Expect.equals(4, list[i].f4());
-        Expect.equals(5, list[i].f5());
-        Expect.equals(6, list[i].f6());
-        Expect.equals(7, list[i].f7());
-        Expect.equals(8, list[i].f8());
-        Expect.equals(9, list[i].f9());
-        Expect.equals(11, list[i].f11());
-        Expect.equals(12, list[i].f12());
-        Expect.equals(13, list[i].f13());
-        Expect.equals(14, list[i].f14());
-        Expect.equals(15, list[i].f15());
-        Expect.equals(16, list[i].f16());
-        Expect.equals(17, list[i].f17());
-        Expect.equals(18, list[i].f18());
-        Expect.equals(19, list[i].f19());
-        Expect.equals(20, list[i].f20());
-        Expect.equals(21, list[i].f21());
-        Expect.equals(22, list[i].f22());
-        Expect.equals(23, list[i].f23());
-        Expect.equals(24, list[i].f24());
-        Expect.equals(25, list[i].f25());
-        Expect.equals(26, list[i].f26());
-        Expect.equals(27, list[i].f27());
-        Expect.equals(28, list[i].f28());
-        Expect.equals(29, list[i].f29());
-        Expect.equals(30, list[i].f30());
-        Expect.equals(31, list[i].f31());
-        Expect.equals(32, list[i].f32());
-        Expect.equals(33, list[i].f33());
-        Expect.equals(34, list[i].f34());
-        Expect.equals(35, list[i].f35());
-        Expect.equals(36, list[i].f36());
-        Expect.equals(37, list[i].f37());
-        Expect.equals(38, list[i].f38());
-        Expect.equals(39, list[i].f39());
-      }
-    }
-  }
-}
-
-main() {
-  ManyCallsTest.testMain();
-}
diff --git a/tests/language_2/unsorted/many_method_calls_test.dart b/tests/language_2/unsorted/many_method_calls_test.dart
deleted file mode 100644
index 7b56c4ee5a6..00000000000
--- a/tests/language_2/unsorted/many_method_calls_test.dart
+++ /dev/null
@@ -1,6646 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that compiler does not crash for very long chains of method calls.
-
-var field = false;
-
-foo() {
-  if (field) {
-    print('foo');
-  }
-}
-
-main() {
-  manyMethodCalls();
-  field = true;
-}
-
-manyMethodCalls() {
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
-  foo();
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-  foo();
-  foo();
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-  foo();
-}
diff --git a/tests/language_2/unsorted/many_named_arguments_test.dart b/tests/language_2/unsorted/many_named_arguments_test.dart
deleted file mode 100644
index 0e9170ac255..00000000000
--- a/tests/language_2/unsorted/many_named_arguments_test.dart
+++ /dev/null
@@ -1,128 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class Fisk {
-  method(
-      {a: 'a',
-      b: 'b',
-      c: 'c',
-      d: 'd',
-      e: 'e',
-      f: 'f',
-      g: 'g',
-      h: 'h',
-      i: 'i',
-      j: 'j',
-      k: 'k',
-      l: 'l',
-      m: 'm',
-      n: 'n',
-      o: 'o',
-      p: 'p',
-      q: 'q',
-      r: 'r',
-      s: 's',
-      t: 't',
-      u: 'u',
-      v: 'v',
-      w: 'w',
-      x: 'x',
-      y: 'y',
-      z: 'z'}) {
-    return 'a: $a, '
-        'b: $b, '
-        'c: $c, '
-        'd: $d, '
-        'e: $e, '
-        'f: $f, '
-        'g: $g, '
-        'h: $h, '
-        'i: $i, '
-        'j: $j, '
-        'k: $k, '
-        'l: $l, '
-        'm: $m, '
-        'n: $n, '
-        'o: $o, '
-        'p: $p, '
-        'q: $q, '
-        'r: $r, '
-        's: $s, '
-        't: $t, '
-        'u: $u, '
-        'v: $v, '
-        'w: $w, '
-        'x: $x, '
-        'y: $y, '
-        'z: $z';
-  }
-}
-
-main() {
-  var method = new Fisk().method;
-  var namedArguments = new Map<Symbol, dynamic>();
-  namedArguments[const Symbol('a')] = 'a';
-  Expect.stringEquals(
-      EXPECTED_RESULT, Function.apply(method, [], namedArguments));
-  Expect.stringEquals(
-      EXPECTED_RESULT,
-      new Fisk().method(
-          a: 'a',
-          b: 'b',
-          c: 'c',
-          d: 'd',
-          e: 'e',
-          f: 'f',
-          g: 'g',
-          h: 'h',
-          i: 'i',
-          j: 'j',
-          k: 'k',
-          l: 'l',
-          m: 'm',
-          n: 'n',
-          o: 'o',
-          p: 'p',
-          q: 'q',
-          r: 'r',
-          s: 's',
-          t: 't',
-          u: 'u',
-          v: 'v',
-          w: 'w',
-          x: 'x',
-          y: 'y',
-          z: 'z'));
-}
-
-const String EXPECTED_RESULT = 'a: a, '
-    'b: b, '
-    'c: c, '
-    'd: d, '
-    'e: e, '
-    'f: f, '
-    'g: g, '
-    'h: h, '
-    'i: i, '
-    'j: j, '
-    'k: k, '
-    'l: l, '
-    'm: m, '
-    'n: n, '
-    'o: o, '
-    'p: p, '
-    'q: q, '
-    'r: r, '
-    's: s, '
-    't: t, '
-    'u: u, '
-    'v: v, '
-    'w: w, '
-    'x: x, '
-    'y: y, '
-    'z: z';
diff --git a/tests/language_2/unsorted/mega_load_test.dart b/tests/language_2/unsorted/mega_load_test.dart
deleted file mode 100644
index 962c847f7e1..00000000000
--- a/tests/language_2/unsorted/mega_load_test.dart
+++ /dev/null
@@ -1,210 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test megamorphic, but single target field load.
-// VMOptions=--optimization-counter-threshold=10
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Base {
-  var f;
-}
-
-class A extends Base {
-  A() {
-    this.f = 0;
-  }
-}
-
-class B extends Base {
-  B() {
-    this.f = 1;
-  }
-}
-
-class C extends Base {
-  C() {
-    this.f = 2;
-  }
-}
-
-class D extends Base {
-  D() {
-    this.f = 3;
-  }
-}
-
-class E extends Base {
-  E() {
-    this.f = 4;
-  }
-}
-
-class F extends Base {
-  F() {
-    this.f = 5;
-  }
-}
-
-class G extends Base {
-  G() {
-    this.f = 6;
-  }
-}
-
-class H extends Base {
-  H() {
-    this.f = 7;
-  }
-}
-
-class I extends Base {
-  I() {
-    this.f = 8;
-  }
-}
-
-class J extends Base {
-  J() {
-    this.f = 9;
-  }
-}
-
-class K extends Base {
-  K() {
-    this.f = 10;
-  }
-}
-
-class L extends Base {
-  L() {
-    this.f = 11;
-  }
-}
-
-class M extends Base {
-  M() {
-    this.f = 12;
-  }
-}
-
-class N extends Base {
-  N() {
-    this.f = 13;
-  }
-}
-
-class O extends Base {
-  O() {
-    this.f = 14;
-  }
-}
-
-class P extends Base {
-  P() {
-    this.f = 15;
-  }
-}
-
-class Q extends Base {
-  Q() {
-    this.f = 16;
-  }
-}
-
-class R extends Base {
-  R() {
-    this.f = 17;
-  }
-}
-
-class S extends Base {
-  S() {
-    this.f = 18;
-  }
-}
-
-class T extends Base {
-  T() {
-    this.f = 19;
-  }
-}
-
-class U extends Base {
-  U() {
-    this.f = 20;
-  }
-}
-
-class V extends Base {
-  V() {
-    this.f = 21;
-  }
-}
-
-class W extends Base {
-  V() {
-    this.f = 22;
-  }
-}
-
-class X extends Base {
-  V() {
-    this.f = 21;
-  }
-}
-
-class Y extends Base {
-  V() {
-    this.f = 24;
-  }
-}
-
-class Z extends Base {
-  V() {
-    this.f = 21;
-  }
-}
-
-allocateObjects() {
-  var list = [];
-  list.add(new A());
-  list.add(new B());
-  list.add(new C());
-  list.add(new D());
-  list.add(new E());
-  list.add(new F());
-  list.add(new G());
-  list.add(new H());
-  list.add(new I());
-  list.add(new J());
-  list.add(new K());
-  list.add(new L());
-  list.add(new M());
-  list.add(new N());
-  list.add(new O());
-  list.add(new P());
-  list.add(new Q());
-  list.add(new R());
-  list.add(new S());
-  list.add(new T());
-  list.add(new U());
-  list.add(new V());
-  return list;
-}
-
-callThemAll(var list) {
-  for (var i = 0; i < list.length; i++) {
-    Expect.equals(i, list[i].f);
-  }
-}
-
-main() {
-  var list = allocateObjects();
-  // Make sure the optimizer triggers the compilation of callThemAll.
-  for (var i = 0; i < 20; i++) {
-    callThemAll(list);
-  }
-}
diff --git a/tests/language_2/unsorted/memory_swap_test.dart b/tests/language_2/unsorted/memory_swap_test.dart
deleted file mode 100644
index af050c3260b..00000000000
--- a/tests/language_2/unsorted/memory_swap_test.dart
+++ /dev/null
@@ -1,92 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that the ParallelMoveResolver in the VM uses valid registers
-// when requiring scratch registers.
-
-main() {
-  // Iterate enough to ensure optimizing `spillingMethod`.
-  for (int i = 0; i < 100000; i++) {
-    spillingMethod(i, () => 0);
-  }
-}
-
-spillingMethod(what, obfuscate) {
-  // Define lots of variables to get a few in stack.
-  var a = obfuscate();
-  var b = obfuscate();
-  var c = obfuscate();
-  var d = obfuscate();
-  var e = obfuscate();
-  var f = obfuscate();
-  var g = obfuscate();
-  var h = obfuscate();
-  var i = obfuscate();
-  var j = obfuscate();
-  var k = obfuscate();
-  var l = obfuscate();
-  var m = obfuscate();
-  var n = obfuscate();
-  var o = obfuscate();
-  var p = obfuscate();
-  var q = obfuscate();
-  var r = obfuscate();
-  var s = obfuscate();
-  var t = obfuscate();
-  var u = obfuscate();
-  var v = obfuscate();
-
-  // Swap all variables, in the hope of a memory <-> memory swap operation.
-  while (what == 42) {
-    a = b;
-    b = a;
-    c = d;
-    d = c;
-    e = f;
-    f = e;
-    g = h;
-    h = g;
-    i = j;
-    j = i;
-    k = l;
-    l = k;
-    m = n;
-    n = m;
-    o = p;
-    p = o;
-    q = r;
-    r = q;
-    s = t;
-    t = s;
-    u = v;
-    v = u;
-    what++;
-  }
-
-  // Keep all variables alive.
-  return a +
-      b +
-      c +
-      d +
-      e +
-      f +
-      g +
-      h +
-      i +
-      j +
-      k +
-      l +
-      m +
-      n +
-      o +
-      p +
-      q +
-      r +
-      s +
-      t +
-      u +
-      v;
-}
diff --git a/tests/language_2/unsorted/mint_compares_test.dart b/tests/language_2/unsorted/mint_compares_test.dart
deleted file mode 100644
index fdc1e04d7e7..00000000000
--- a/tests/language_2/unsorted/mint_compares_test.dart
+++ /dev/null
@@ -1,155 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test compares on 64-bit integers.
-
-compareTest() {
-  Expect.isFalse(4294967296 < 6);
-  Expect.isFalse(4294967296 < 4294967296);
-  Expect.isFalse(4294967296 <= 6);
-  Expect.isTrue(4294967296 <= 4294967296);
-  Expect.isFalse(4294967296 < 4294967295);
-
-  Expect.isTrue(-4294967296 < 6);
-  Expect.isTrue(-4294967296 < 4294967296);
-  Expect.isTrue(-4294967296 <= 6);
-  Expect.isTrue(-4294967296 <= 4294967296);
-  Expect.isTrue(-4294967296 < 4294967295);
-
-  Expect.isFalse(4294967296 < -6);
-  Expect.isFalse(4294967296 <= -6);
-  Expect.isFalse(4294967296 < -4294967295);
-
-  Expect.isTrue(-4294967296 < -6);
-  Expect.isTrue(-4294967296 <= -6);
-  Expect.isTrue(-4294967296 < -4294967295);
-
-  Expect.isTrue(4294967296 > 6);
-  Expect.isFalse(4294967296 > 4294967296);
-  Expect.isTrue(4294967296 >= 6);
-  Expect.isTrue(4294967296 >= 4294967296);
-  Expect.isTrue(4294967296 > 4294967295);
-
-  Expect.isFalse(-4294967296 > 6);
-  Expect.isFalse(-4294967296 > 4294967296);
-  Expect.isFalse(-4294967296 >= 6);
-  Expect.isFalse(-4294967296 >= 4294967296);
-  Expect.isFalse(-4294967296 > 4294967295);
-
-  Expect.isTrue(4294967296 > -6);
-  Expect.isTrue(4294967296 >= -6);
-  Expect.isTrue(4294967296 > -4294967295);
-
-  Expect.isFalse(-4294967296 > -6);
-  Expect.isFalse(-4294967296 >= -6);
-  Expect.isFalse(-4294967296 > -4294967295);
-
-  Expect.isTrue(4294967296 < 9223372036854775807);
-  Expect.isTrue(-4294967296 < 9223372036854775807);
-  Expect.isFalse(4294967296 < -9223372036854775808);
-  Expect.isFalse(-4294967296 < -9223372036854775808);
-}
-
-compareTest2(lt, lte, gt, gte) {
-  Expect.isFalse(lt(4294967296, 6));
-  Expect.isFalse(lte(4294967296, 6));
-  Expect.isTrue(gt(4294967296, 6));
-  Expect.isTrue(gte(4294967296, 6));
-
-  Expect.isTrue(lte(-1, -1));
-  Expect.isTrue(gte(-1, -1));
-  Expect.isTrue(lte(-2, -1));
-  Expect.isFalse(gte(-2, -1));
-  Expect.isTrue(lte(-4294967296, -1));
-  Expect.isFalse(gte(-4294967296, -1));
-
-  Expect.isTrue(lt(-2, -1));
-  Expect.isFalse(gt(-2, -1));
-  Expect.isTrue(lt(-4294967296, -1));
-  Expect.isFalse(gt(-4294967296, -1));
-
-  Expect.isFalse(lt(-1, -4294967296));
-  Expect.isTrue(gt(-1, -4294967296));
-  Expect.isFalse(lt(2, -2));
-  Expect.isTrue(gt(2, -2));
-  Expect.isFalse(lt(4294967296, -1));
-  Expect.isTrue(gt(4294967296, -1));
-}
-
-compareTestWithZero(lt, lte, gt, gte, eq, ne) {
-  Expect.isFalse(lt(4294967296));
-  Expect.isFalse(lte(4294967296));
-  Expect.isTrue(gt(4294967296));
-  Expect.isTrue(gte(4294967296));
-  Expect.isFalse(eq(4294967296));
-  Expect.isTrue(ne(4294967296));
-
-  Expect.isTrue(lt(-1));
-  Expect.isTrue(lte(-1));
-  Expect.isFalse(gt(-1));
-  Expect.isFalse(gte(-1));
-  Expect.isFalse(eq(-1));
-  Expect.isTrue(ne(-1));
-
-  Expect.isTrue(lt(-2));
-  Expect.isTrue(lte(-2));
-  Expect.isFalse(gt(-2));
-  Expect.isFalse(gte(-2));
-  Expect.isFalse(eq(-2));
-  Expect.isTrue(ne(-2));
-
-  Expect.isTrue(lt(-4294967296));
-  Expect.isTrue(lte(-4294967296));
-  Expect.isFalse(gt(-4294967296));
-  Expect.isFalse(gte(-4294967296));
-  Expect.isFalse(eq(-4294967296));
-  Expect.isTrue(ne(-4294967296));
-
-  Expect.isFalse(lt(0));
-  Expect.isTrue(lte(0));
-  Expect.isFalse(gt(0));
-  Expect.isTrue(gte(0));
-  Expect.isTrue(eq(0));
-  Expect.isFalse(ne(0));
-}
-
-bool lt1(a, b) => a < b;
-bool lte1(a, b) => a <= b;
-bool gt1(a, b) => a > b;
-bool gte1(a, b) => a >= b;
-
-bool lt2(a, b) => a < b ? true : false;
-bool lte2(a, b) => a <= b ? true : false;
-bool gt2(a, b) => a > b ? true : false;
-bool gte2(a, b) => a >= b ? true : false;
-
-bool int_lt1(int a) => a < 0;
-bool int_lte1(int a) => a <= 0;
-bool int_gt1(int a) => a > 0;
-bool int_gte1(int a) => a >= 0;
-bool int_eq1(int a) => a == 0;
-bool int_ne1(int a) => a != 0;
-
-bool int_lt2(int a) => a < 0 ? true : false;
-bool int_lte2(int a) => a <= 0 ? true : false;
-bool int_gt2(int a) => a > 0 ? true : false;
-bool int_gte2(int a) => a >= 0 ? true : false;
-bool int_eq2(int a) => a == 0 ? true : false;
-bool int_ne2(int a) => a != 0 ? true : false;
-
-main() {
-  for (var i = 0; i < 20; i++) {
-    compareTest();
-    compareTest2(lt1, lte1, gt1, gte1);
-    compareTest2(lt2, lte2, gt2, gte2);
-
-    compareTestWithZero(int_lt1, int_lte1, int_gt1, int_gte1, int_eq1, int_ne1);
-    compareTestWithZero(int_lt2, int_lte2, int_gt2, int_gte2, int_eq2, int_ne2);
-  }
-}
diff --git a/tests/language_2/unsorted/mock_writable_final_field_test.dart b/tests/language_2/unsorted/mock_writable_final_field_test.dart
deleted file mode 100644
index 7835e940461..00000000000
--- a/tests/language_2/unsorted/mock_writable_final_field_test.dart
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-final values = <int>[];
-
-class Mock {
-  noSuchMethod(Invocation i) {
-    var expected = i.isGetter ? #x : const Symbol("x=");
-    Expect.equals(expected.toString(), i.memberName.toString());
-    values.add(i.positionalArguments[0]);
-  }
-}
-
-class Foo {
-  // Prevent obfuscation of 'x'.
-  @pragma("vm:entry-point")
-  int x;
-}
-
-class Bar extends Mock implements Foo {
-  final int x = 42;
-}
-
-class _Baz implements Foo {
-  final int x = 42;
-
-  noSuchMethod(Invocation i) {
-    var expected = i.isGetter ? #x : const Symbol("x=");
-    Expect.equals(expected.toString(), i.memberName.toString());
-    values.add(i.positionalArguments[0]);
-  }
-}
-
-void main() {
-  {
-    Bar b = new Bar();
-    Expect.equals(b.x, 42);
-    b.x = 123;
-    Expect.listEquals([123], values);
-    values.clear();
-  }
-  {
-    // It works the same if called statically through the Foo interface.
-    Foo b = new Bar();
-    Expect.equals(b.x, 42);
-    b.x = 123;
-    Expect.listEquals([123], values);
-    values.clear();
-  }
-  {
-    // It works the same if the noSuchMethod is defined directly in the class.
-    Foo b = new _Baz();
-    Expect.equals(b.x, 42);
-    b.x = 123;
-    Expect.listEquals([123], values);
-    values.clear();
-  }
-}
diff --git a/tests/language_2/unsorted/multi_pass2_test.dart b/tests/language_2/unsorted/multi_pass2_test.dart
deleted file mode 100644
index 31e48749fee..00000000000
--- a/tests/language_2/unsorted/multi_pass2_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for loading several dart files and resolving superclasses lazily.
-// Same as MultiPassTest, except that the file order is reversed.
-
-// @dart = 2.9
-
-library MultiPassTest.dart;
-
-import "package:expect/expect.dart";
-part "multi_pass_a.dart";
-part "multi_pass_b.dart";
-
-class Base {
-  Base(this.value) {}
-  var value;
-}
-
-class MultiPass2Test {
-  static testMain() {
-    var a = new B(5);
-    Expect.equals(5, a.value);
-  }
-}
-
-main() {
-  MultiPass2Test.testMain();
-}
diff --git a/tests/language_2/unsorted/multi_pass_a.dart b/tests/language_2/unsorted/multi_pass_a.dart
deleted file mode 100644
index 4c66703b53f..00000000000
--- a/tests/language_2/unsorted/multi_pass_a.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for loading several dart files and resolving superclasses lazily.
-
-// @dart = 2.9
-
-part of MultiPassTest.dart;
-
-class A extends Base {
-  A(v) : super(v) {}
-}
diff --git a/tests/language_2/unsorted/multi_pass_b.dart b/tests/language_2/unsorted/multi_pass_b.dart
deleted file mode 100644
index 9b3aa32cc00..00000000000
--- a/tests/language_2/unsorted/multi_pass_b.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for loading several dart files and resolving superclasses lazily.
-
-// @dart = 2.9
-
-part of MultiPassTest.dart;
-
-class B extends A {
-  B(v) : super(v) {}
-}
diff --git a/tests/language_2/unsorted/multi_pass_test.dart b/tests/language_2/unsorted/multi_pass_test.dart
deleted file mode 100644
index 0b05e952e46..00000000000
--- a/tests/language_2/unsorted/multi_pass_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for loading several dart files and resolving superclasses lazily.
-
-// @dart = 2.9
-
-library MultiPassTest.dart;
-
-import "package:expect/expect.dart";
-part "multi_pass_a.dart";
-part "multi_pass_b.dart";
-
-class Base {
-  Base(this.value) {}
-  var value;
-}
-
-class MultiPassTest {
-  static testMain() {
-    var a = new B(5);
-    Expect.equals(5, a.value);
-  }
-}
-
-main() {
-  MultiPassTest.testMain();
-}
diff --git a/tests/language_2/unsorted/namer2_test.dart b/tests/language_2/unsorted/namer2_test.dart
deleted file mode 100644
index 8c400ca1b4c..00000000000
--- a/tests/language_2/unsorted/namer2_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that user field names cannot clash with internal names of the
-// dart2js compiler.
-
-class A<T> {
-  var $isA;
-  var $eq;
-  var $builtinTypeInfo;
-}
-
-main() {
-  var c = [new A()];
-  Expect.isTrue(c[0] is A);
-  Expect.isTrue(c[0] == c[0]);
-
-  c = [new A<int>()];
-  c[0].$builtinTypeInfo = 42;
-  Expect.isTrue(c[0] is! A<String>);
-}
diff --git a/tests/language_2/unsorted/namer_test.dart b/tests/language_2/unsorted/namer_test.dart
deleted file mode 100644
index abe13bb1e35..00000000000
--- a/tests/language_2/unsorted/namer_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Regression test for a bug in dart2js where global names could
-// collide.
-
-var i = 'top level';
-
-var i0 = 'top level zero';
-
-var i00 = 'top level zero zero';
-
-var i2 = 'top level too';
-
-class A {
-  static var i = 'A';
-}
-
-var j = 'top level';
-
-var j0 = 'top level zero';
-
-var j00 = 'top level zero zero';
-
-var j2 = 'top level too';
-
-class B {
-  static var j = 'B';
-}
-
-var k = 'top level';
-
-var k0 = 'top level zero';
-
-var k00 = 'top level zero zero';
-
-var k2 = 'top level too';
-
-class C {
-  static var k = 'C';
-}
-
-main() {
-  // Order matters. This sequence triggered the bug.
-  Expect.equals('top level', i);
-  Expect.equals('A', A.i);
-  Expect.equals('top level too', i2);
-  Expect.equals('top level zero zero', i00);
-  Expect.equals('top level zero', i0);
-
-  Expect.equals('top level zero zero', j00);
-  Expect.equals('top level', j);
-  Expect.equals('top level too', j2);
-  Expect.equals('top level zero', j0);
-  Expect.equals('B', B.j);
-
-  Expect.equals('top level too', k2);
-  Expect.equals('top level zero', k0);
-  Expect.equals('top level', k);
-  Expect.equals('C', C.k);
-  Expect.equals('top level zero zero', k00);
-}
diff --git a/tests/language_2/unsorted/native_test.dart b/tests/language_2/unsorted/native_test.dart
deleted file mode 100644
index 0b5707c4cf7..00000000000
--- a/tests/language_2/unsorted/native_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program which shows how to write self verifying tests
-// and how to print dart objects if needed.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Helper {
-  static int foo(int i) {
-    return i + 10;
-  }
-}
-
-class NativeTest {
-  static testMain() {
-    int i = 10;
-    int result = 10 + 10 + 10;
-    i = Helper.foo(i + 10);
-    print("$i is result.");
-    Expect.equals(i, result);
-  }
-}
-
-main() {
-  NativeTest.testMain();
-}
diff --git a/tests/language_2/unsorted/parse_types_test.dart b/tests/language_2/unsorted/parse_types_test.dart
deleted file mode 100644
index b4f40040f57..00000000000
--- a/tests/language_2/unsorted/parse_types_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing parsing of "standard" types.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class ParseTypesTest {
-  static bool callBool1() {
-    return true;
-  }
-
-  static bool callBool2() {
-    return false;
-  }
-
-  static int callInt() {
-    return 2;
-  }
-
-  static String callString() {
-    return "Hey";
-  }
-
-  static double callDouble() {
-    return 4.0;
-  }
-
-  static void testMain() {
-    Expect.equals(true, ParseTypesTest.callBool1());
-    Expect.equals(false, ParseTypesTest.callBool2());
-    Expect.equals(2, ParseTypesTest.callInt());
-    Expect.equals("Hey", ParseTypesTest.callString());
-    Expect.equals(4.0, ParseTypesTest.callDouble());
-  }
-}
-
-main() {
-  ParseTypesTest.testMain();
-}
diff --git a/tests/language_2/unsorted/partial_min_test.dart b/tests/language_2/unsorted/partial_min_test.dart
deleted file mode 100644
index f66db487250..00000000000
--- a/tests/language_2/unsorted/partial_min_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// This test triggered an NPE in dart2js.
-// The bug needed:
-// - double usage of the same variable in one expression ("b != b").
-// - replacement of "b" with "typechecked b".
-// - ...
-// The example below is minimal (as far as I was able to do).
-
-num foo(num a, num b) {
-  if (a > b) return b;
-  if (b is double) {
-    if (true) {
-      if (true) {
-        return (a + b) * a * b;
-      }
-    }
-    // Check for NaN and b == -0.0.
-    if (a == 0 && b == 0 || b != b) return b;
-  }
-}
-
-main() {
-  Expect.equals(1, foo(2, 1));
-}
diff --git a/tests/language_2/unsorted/patch_test.dart b/tests/language_2/unsorted/patch_test.dart
deleted file mode 100644
index 34faf19f3d6..00000000000
--- a/tests/language_2/unsorted/patch_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-patch() {
-  return 12;
-}
-
-main() {
-  var x = patch();
-  Expect.equals(12, x);
-}
diff --git a/tests/language_2/unsorted/property_field_override_test.dart b/tests/language_2/unsorted/property_field_override_test.dart
deleted file mode 100644
index 24bc7287b41..00000000000
--- a/tests/language_2/unsorted/property_field_override_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test overriding a getter property with a field.
-abstract class A {
-  int get v; // Abstract.
-
-  int a() {
-    return v - 1;
-  }
-}
-
-class B extends A {
-  int v = 3;
-
-  int b() {
-    return ++v;
-  }
-}
-
-main() {
-  var x = new B();
-  Expect.equals(3, x.v);
-  Expect.equals(2, x.a());
-  Expect.equals(4, x.b());
-}
diff --git a/tests/language_2/unsorted/range_analysis2_test.dart b/tests/language_2/unsorted/range_analysis2_test.dart
deleted file mode 100644
index 464169952f3..00000000000
--- a/tests/language_2/unsorted/range_analysis2_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to remove bounds checks on
-// boxed variables.
-
-import "package:expect/expect.dart";
-
-main() {
-  var a = 0;
-  var b = [1];
-  foo() => b[a--] + b[a];
-  Expect.throwsRangeError(foo);
-}
diff --git a/tests/language_2/unsorted/range_analysis3_test.dart b/tests/language_2/unsorted/range_analysis3_test.dart
deleted file mode 100644
index debf01d4d55..00000000000
--- a/tests/language_2/unsorted/range_analysis3_test.dart
+++ /dev/null
@@ -1,212 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-confuse(x) {
-  if (new DateTime.now().millisecondsSinceEpoch == 0) {
-    return confuse(x + 1);
-  } else if (new DateTime.now().millisecondsSinceEpoch == 0) {
-    return confuse(x - 1);
-  }
-  return x;
-}
-
-test1() {
-  int x = 0;
-  // Give x a range of -1 to 0.
-  if (confuse(0) == 1) x = -1;
-
-  int y = 0;
-  // Give y a range of 0 to 1.
-  if (confuse(0) == 1) y = 1;
-
-  var zero = 0;
-
-  var status = "bad";
-  if (x < zero) {
-    Expect.fail("unreachable");
-  } else {
-    // Dart2js must not conclude that zero has a range of [-1, 0].
-    if (y <= zero) {
-      status = "good";
-    }
-  }
-  Expect.equals("good", status);
-}
-
-test2() {
-  int x = 0;
-  // Give x a range of -1 to 0.
-  if (confuse(0) == 1) x = -1;
-
-  int y = 0;
-  // Give y a range of -1 to 1.
-  if (confuse(0) == 1) y = 1;
-  if (confuse(1) == 2) y = -1;
-
-  var status = "good";
-  if (x < y) {
-    Expect.fail("unreachable");
-  } else {
-    // Dart2js must not conclude that y has a range of [-1, -1].
-    if (y == -1) {
-      status = "bad";
-    }
-  }
-  Expect.equals("good", status);
-}
-
-test3a() {
-  int x = 0;
-  // Give x a range of -1 to 1.
-  if (confuse(0) == 1) x = -1;
-  if (confuse(1) == 2) x = 1;
-
-  int y = 0;
-  // Give y a range of -1 to 1.
-  if (confuse(0) == 1) y = 1;
-  if (confuse(1) == 2) y = -1;
-
-  var status = "good";
-  if (x < y) {
-    Expect.fail("unreachable");
-  } else {
-    // Test that the range-analysis does not lose a value.
-    if (x <= -1) status = "bad";
-    if (x >= 1) status = "bad";
-    if (x < 0) status = "bad";
-    if (x > 0) status = "bad";
-    if (-1 >= x) status = "bad";
-    if (1 <= x) status = "bad";
-    if (0 > x) status = "bad";
-    if (0 < x) status = "bad";
-    if (y <= -1) status = "bad";
-    if (y >= 1) status = "bad";
-    if (y < 0) status = "bad";
-    if (y > 0) status = "bad";
-    if (-1 >= y) status = "bad";
-    if (1 <= y) status = "bad";
-    if (0 > y) status = "bad";
-    if (0 < y) status = "bad";
-  }
-  Expect.equals("good", status);
-}
-
-test3b() {
-  int x = 0;
-  // Give x a range of -2 to 0.
-  if (confuse(0) == 1) x = -2;
-
-  int y = 0;
-  // Give y a range of -1 to 1.
-  if (confuse(0) == 1) y = 1;
-  if (confuse(1) == 2) y = -1;
-
-  var status = "good";
-  if (x < y) {
-    Expect.fail("unreachable");
-  } else {
-    // Test that the range-analysis does not lose a value.
-    if (x <= -1) status = "bad";
-    if (x >= 1) status = "bad";
-    if (x < 0) status = "bad";
-    if (x > 0) status = "bad";
-    if (-1 >= x) status = "bad";
-    if (1 <= x) status = "bad";
-    if (0 > x) status = "bad";
-    if (0 < x) status = "bad";
-    if (y <= -1) status = "bad";
-    if (y >= 1) status = "bad";
-    if (y < 0) status = "bad";
-    if (y > 0) status = "bad";
-    if (-1 >= y) status = "bad";
-    if (1 <= y) status = "bad";
-    if (0 > y) status = "bad";
-    if (0 < y) status = "bad";
-  }
-  Expect.equals("good", status);
-}
-
-test4a() {
-  int x = -1;
-  // Give x a range of -1 to 1.
-  if (confuse(0) == 1) x = 1;
-
-  int y = 0;
-  // Give y a range of -1 to 1.
-  if (confuse(0) == 1) y = 1;
-  if (confuse(1) == 2) y = -1;
-
-  var status = "good";
-  if (x < y) {
-    // Test that the range-analysis does not lose a value.
-    if (x <= -2) status = "bad";
-    if (x >= 0) status = "bad";
-    if (x < -1) status = "bad";
-    if (x > -1) status = "bad";
-    if (-2 >= x) status = "bad";
-    if (0 <= x) status = "bad";
-    if (-1 > x) status = "bad";
-    if (-1 < x) status = "bad";
-    if (y <= -1) status = "bad";
-    if (y >= 1) status = "bad";
-    if (y < 0) status = "bad";
-    if (y > 0) status = "bad";
-    if (-1 >= y) status = "bad";
-    if (1 <= y) status = "bad";
-    if (0 > y) status = "bad";
-    if (0 < y) status = "bad";
-  } else {
-    Expect.fail("unreachable");
-  }
-  Expect.equals("good", status);
-}
-
-test4b() {
-  int x = -1;
-  // Give x a range of -2 to 0.
-  if (confuse(0) == 1) x = -2;
-  if (confuse(1) == 2) x = 0;
-
-  int y = 0;
-  // Give y a range of -1 to 1.
-  if (confuse(0) == 1) y = 1;
-  if (confuse(1) == 2) y = -1;
-
-  var status = "good";
-  if (x < y) {
-    // Test that the range-analysis does not lose a value.
-    if (x <= -2) status = "bad";
-    if (x >= 0) status = "bad";
-    if (x < -1) status = "bad";
-    if (x > -1) status = "bad";
-    if (-2 >= x) status = "bad";
-    if (0 <= x) status = "bad";
-    if (-1 > x) status = "bad";
-    if (-1 < x) status = "bad";
-    if (y <= -1) status = "bad";
-    if (y >= 1) status = "bad";
-    if (y < 0) status = "bad";
-    if (y > 0) status = "bad";
-    if (-1 >= y) status = "bad";
-    if (1 <= y) status = "bad";
-    if (0 > y) status = "bad";
-    if (0 < y) status = "bad";
-  } else {
-    Expect.fail("unreachable");
-  }
-  Expect.equals("good", status);
-}
-
-main() {
-  test1();
-  test2();
-  test3a();
-  test3b();
-  test4a();
-  test4b();
-}
diff --git a/tests/language_2/unsorted/range_analysis_test.dart b/tests/language_2/unsorted/range_analysis_test.dart
deleted file mode 100644
index 0c9f3857f32..00000000000
--- a/tests/language_2/unsorted/range_analysis_test.dart
+++ /dev/null
@@ -1,120 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test program for constructors and initializers.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Check that range analysis does not enter infinite loop trying to propagate
-// ranges through dependant phis.
-bar() {
-  var sum = 0;
-  for (var i = 0; i < 10; i++) {
-    for (var j = i - 1; j >= 0; j--) {
-      for (var k = j; k < i; k++) {
-        sum += (i + j + k);
-      }
-    }
-  }
-  return sum;
-}
-
-test1() {
-  for (var i = 0; i < 20; i++) bar();
-}
-
-// Check that range analysis does not erroneously remove overflow check.
-test2() {
-  var width = 1073741823;
-  Expect.equals(width - 1, foo(width - 5000, width - 1));
-  Expect.equals(width, foo(width - 5000, width));
-}
-
-foo(n, w) {
-  var x = 0;
-  for (var i = n; i <= w; i++) {
-    Expect.isTrue(i > 0);
-    x = i;
-  }
-  return x;
-}
-
-// Test detection of unsatisfiable constraints.
-f(a, b) {
-  if (a < b) {
-    if (a > b) {
-      throw "unreachable";
-    }
-    return 2;
-  }
-  return 3;
-}
-
-f1(a, b) {
-  if (a < b) {
-    if (a > b - 1) {
-      throw "unreachable";
-    }
-    return 2;
-  }
-  return 3;
-}
-
-f2(a, b) {
-  if (a < b) {
-    if (a > b - 2) {
-      return 2;
-    }
-    throw "unreachable";
-  }
-  return 3;
-}
-
-g() {
-  var i;
-  for (i = 0; i < 10; i++) {
-    if (i < 0) throw "unreachable";
-  }
-  return i;
-}
-
-h(n) {
-  var i;
-  for (i = 0; i < n; i++) {
-    if (i < 0) throw "unreachable";
-    var j = i - 1;
-    if (j >= n - 1) throw "unreachable";
-  }
-  return i;
-}
-
-test3() {
-  test_fun(fun) {
-    Expect.equals(2, fun(0, 1));
-    Expect.equals(3, fun(0, 0));
-    for (var i = 0; i < 20; i++) fun(0, 1);
-    Expect.equals(2, fun(0, 1));
-    Expect.equals(3, fun(0, 0));
-  }
-
-  test_fun(f);
-  test_fun(f1);
-  test_fun(f2);
-
-  Expect.equals(10, g());
-  for (var i = 0; i < 20; i++) g();
-  Expect.equals(10, g());
-
-  Expect.equals(10, h(10));
-  for (var i = 0; i < 20; i++) h(10);
-  Expect.equals(10, h(10));
-}
-
-main() {
-  test1();
-  test2();
-  test3();
-}
diff --git a/tests/language_2/unsorted/recursive_calls_test.dart b/tests/language_2/unsorted/recursive_calls_test.dart
deleted file mode 100644
index 75e0d4b9ff0..00000000000
--- a/tests/language_2/unsorted/recursive_calls_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-int bar(x) => foo(x + 1);
-int foo(x) => x > 9 ? x : bar(x);
-
-main() {
-  Expect.equals(foo(int.parse("1")), 10);
-}
diff --git a/tests/language_2/unsorted/recursive_loop_phis_test.dart b/tests/language_2/unsorted/recursive_loop_phis_test.dart
deleted file mode 100644
index 580b47deb32..00000000000
--- a/tests/language_2/unsorted/recursive_loop_phis_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// This program tripped dart2js.
-
-foo(bool b) {
-  var x = 499;
-  // If the loop-phi is not declared it will assign to a global and the
-  // recursive call will screw up the methods "local" state.
-  for (int i = 0; i < 3; i++) {
-    if (i == 0 && b) x = 42;
-    if (!b) foo(true);
-  }
-  return x;
-}
-
-main() {
-  Expect.equals(499, foo(false));
-}
diff --git a/tests/language_2/unsorted/refine_receiver_null_test.dart b/tests/language_2/unsorted/refine_receiver_null_test.dart
deleted file mode 100644
index df580baaf6a..00000000000
--- a/tests/language_2/unsorted/refine_receiver_null_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to infer that code following
-// a dynamic call could assume the receiver is not null. This does not
-// work for Object methods.
-
-import "package:expect/expect.dart";
-
-main() {
-  var a = true ? null : 42;
-  a.toString();
-  foo(a);
-}
-
-@pragma('vm:never-inline')
-@pragma('dart2js:noInline')
-foo(a) {
-  var f = () => 42;
-  Expect.throwsNoSuchMethodError(() => a + 42);
-}
diff --git a/tests/language_2/unsorted/savannah_test.dart b/tests/language_2/unsorted/savannah_test.dart
deleted file mode 100644
index 3200d2f42fa..00000000000
--- a/tests/language_2/unsorted/savannah_test.dart
+++ /dev/null
@@ -1,81 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test using an identity hash.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-abstract class BigGame {
-  String get name;
-}
-
-// Giraffe overrides hashCode and provides its own identity hash.
-class Giraffe implements BigGame {
-  final String name;
-  final int identityHash_;
-
-  Giraffe(this.name) : identityHash_ = nextId() {}
-
-  int get hashCode {
-    return identityHash_;
-  }
-
-  // Calculate identity hash for a giraffe.
-  static int nextId_;
-  static int nextId() {
-    if (nextId_ == null) {
-      nextId_ = 17;
-    }
-    return nextId_++;
-  }
-}
-
-// Zebra relies on the system provided identity hash.
-class Zebra implements BigGame {
-  final String name;
-  Zebra(this.name) {}
-}
-
-class SavannahTest {
-  static void testMain() {
-    Map<BigGame, String> savannah = new Map<BigGame, String>();
-
-    Giraffe giraffe1 = new Giraffe("Tony");
-    Giraffe giraffe2 = new Giraffe("Rose");
-    savannah[giraffe1] = giraffe1.name;
-    savannah[giraffe2] = giraffe2.name;
-    print("giraffe1 hash: ${giraffe1.hashCode}");
-    print("giraffe2 hash: ${giraffe2.hashCode}");
-
-    var count = savannah.length;
-    print("getCount is $count");
-    Expect.equals(2, count);
-
-    print("giraffe1: ${savannah[giraffe1]}");
-    print("giraffe2: ${savannah[giraffe2]}");
-    Expect.equals("Tony", savannah[giraffe1]);
-    Expect.equals("Rose", savannah[giraffe2]);
-
-    Zebra zebra1 = new Zebra("Paolo");
-    Zebra zebra2 = new Zebra("Zeeta");
-    savannah[zebra1] = zebra1.name;
-    savannah[zebra2] = zebra2.name;
-    print("zebra1 hash: ${zebra1.hashCode}");
-    print("zebra2 hash: ${zebra2.hashCode}");
-
-    count = savannah.length;
-    print("getCount is $count");
-    Expect.equals(4, count);
-
-    print("zebra1: ${savannah[zebra1]}");
-    print("zebra2: ${savannah[zebra2]}");
-    Expect.equals("Paolo", savannah[zebra1]);
-    Expect.equals("Zeeta", savannah[zebra2]);
-  }
-}
-
-main() {
-  SavannahTest.testMain();
-}
diff --git a/tests/language_2/unsorted/scanner_test.dart b/tests/language_2/unsorted/scanner_test.dart
deleted file mode 100644
index 08db501d599..00000000000
--- a/tests/language_2/unsorted/scanner_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test dart scanner.
-
-// @dart = 2.9
-
-class ScannerTest {
-  static testMain() {
-    var s = "Hello\tmy\tfriend\n";
-    return s;
-  }
-}
-
-main() {
-  ScannerTest.testMain();
-}
diff --git a/tests/language_2/unsorted/second_test.dart b/tests/language_2/unsorted/second_test.dart
deleted file mode 100644
index 48a48fdbc8e..00000000000
--- a/tests/language_2/unsorted/second_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Second dart test program.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Helper {
-  static empty() {}
-  static int foo() {
-    return 42;
-  }
-}
-
-class SecondTest {
-  static testMain() {
-    Helper.empty();
-    Expect.equals(42, Helper.foo());
-  }
-}
-
-main() {
-  SecondTest.testMain();
-}
diff --git a/tests/language_2/unsorted/shadow_parameter_and_local_test.dart b/tests/language_2/unsorted/shadow_parameter_and_local_test.dart
deleted file mode 100644
index 2b7b65ce291..00000000000
--- a/tests/language_2/unsorted/shadow_parameter_and_local_test.dart
+++ /dev/null
@@ -1,136 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Regression test for https://github.com/dart-lang/sdk/issues/29733 in DDC.
-foo(a) {
-  var a = 123;
-  return a;
-}
-
-// Regression test for https://github.com/dart-lang/sdk/issues/30792 in DDC.
-bar(a) async {
-  var a = 123;
-  return a;
-}
-
-baz(a) sync* {
-  var a = 123;
-  yield a;
-}
-
-qux(a) async* {
-  var a = 123;
-  yield a;
-}
-
-// Regression test for https://github.com/dart-lang/sdk/issues/32140
-class C {
-  var x, y, localY, _value;
-
-  C(a) {
-    var a = 123;
-    this.x = a;
-  }
-
-  C.initY(this.y) {
-    var y = 123;
-    this.localY = y;
-  }
-
-  method(a) {
-    var a = 123;
-    return a;
-  }
-
-  mOptional([a = 0]) {
-    var a = 123;
-    return a;
-  }
-
-  mNamed({a = 0}) {
-    var a = 123;
-    return a;
-  }
-
-  mAsync({a: 0}) async {
-    var a = 123;
-    return a;
-  }
-
-  mSyncStar({a: 0}) sync* {
-    var a = 123;
-    yield a;
-  }
-
-  mAsyncStar({a: 0}) async* {
-    var a = 123;
-    yield a;
-  }
-
-  get accessor => _value;
-  set accessor(a) {
-    var a = 123;
-    this._value = a;
-  }
-}
-
-testCatch() {
-  try {
-    throw 'oops';
-  } catch (e) {
-    var e = 123;
-    return e;
-  }
-}
-
-testStackTrace() {
-  try {
-    throw 'oops';
-  } catch (e, s) {
-    var s = 123;
-    return s;
-  }
-}
-
-main() async {
-  Expect.equals(123, foo(42));
-  Expect.equals(123, await bar(42));
-  Expect.equals(123, baz(42).single);
-  Expect.equals(123, await qux(42).single);
-
-  await testClass();
-
-  Expect.equals(123, testCatch());
-  Expect.equals(123, testStackTrace());
-}
-
-testClass() async {
-  var c = new C('hi');
-  Expect.equals(123, c.x);
-  Expect.equals(123, c.method(42));
-  c.accessor = 42;
-  Expect.equals(123, c.accessor);
-  c = new C.initY(42);
-  Expect.equals(42, c.y);
-  Expect.equals(123, c.localY);
-
-  Expect.equals(123, c.mOptional());
-  Expect.equals(123, c.mOptional(42));
-
-  Expect.equals(123, c.mNamed());
-  Expect.equals(123, c.mNamed(a: 42));
-
-  Expect.equals(123, await c.mAsync());
-
-  var iter = c.mSyncStar();
-  Expect.listEquals([123], iter.toList());
-  Expect.listEquals([123], iter.toList(), 'second iteration yields same value');
-
-  var stream = c.mAsyncStar();
-  Expect.listEquals([123], await stream.toList());
-}
diff --git a/tests/language_2/unsorted/side_effect_throw_test.dart b/tests/language_2/unsorted/side_effect_throw_test.dart
deleted file mode 100644
index f2918953a85..00000000000
--- a/tests/language_2/unsorted/side_effect_throw_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class B {
-  static var x;
-  operator <<(other) {
-    x = other;
-    return 33;
-  }
-}
-
-class A {
-  get _m => new B();
-  opshl(n) {
-    // 'n' must be a number, but we are not allowed to throw before we have
-    // evaluated _m << 499.
-    return (_m << 499) | (2 - n);
-  }
-}
-
-main() {
-  var a = new A();
-  Expect.throws(() => a.opshl("string"));
-  Expect.equals(499, B.x);
-}
diff --git a/tests/language_2/unsorted/smaller_4_Interface_Types_A11_t01_test.dart b/tests/language_2/unsorted/smaller_4_Interface_Types_A11_t01_test.dart
deleted file mode 100644
index 42d069bbe49..00000000000
--- a/tests/language_2/unsorted/smaller_4_Interface_Types_A11_t01_test.dart
+++ /dev/null
@@ -1,271 +0,0 @@
-
-// @dart = 2.9
-/*
- * Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
- * for details. All rights reserved. Use of this source code is governed by a
- * BSD-style license that can be found in the LICENSE file.
- */
-
-// This is a small version of the co19 test
-// Language/14_Types/4_Interface_Types_A11_t01.
-
-import 'package:expect/expect.dart';
-
-class C {}
-
-main() {
-  Expect.isTrue(new C126() is C);
-  Expect.isTrue(new C126() is Object);
-}
-
-class C1 extends C {}
-
-class C2 extends C1 {}
-
-class C3 extends C2 {}
-
-class C4 extends C3 {}
-
-class C5 extends C4 {}
-
-class C6 extends C5 {}
-
-class C7 extends C6 {}
-
-class C8 extends C7 {}
-
-class C9 extends C8 {}
-
-class C10 extends C9 {}
-
-class C11 extends C10 {}
-
-class C12 extends C11 {}
-
-class C13 extends C12 {}
-
-class C14 extends C13 {}
-
-class C15 extends C14 {}
-
-class C16 extends C15 {}
-
-class C17 extends C16 {}
-
-class C18 extends C17 {}
-
-class C19 extends C18 {}
-
-class C20 extends C19 {}
-
-class C21 extends C20 {}
-
-class C22 extends C21 {}
-
-class C23 extends C22 {}
-
-class C24 extends C23 {}
-
-class C25 extends C24 {}
-
-class C26 extends C25 {}
-
-class C27 extends C26 {}
-
-class C28 extends C27 {}
-
-class C29 extends C28 {}
-
-class C30 extends C29 {}
-
-class C31 extends C30 {}
-
-class C32 extends C31 {}
-
-class C33 extends C32 {}
-
-class C34 extends C33 {}
-
-class C35 extends C34 {}
-
-class C36 extends C35 {}
-
-class C37 extends C36 {}
-
-class C38 extends C37 {}
-
-class C39 extends C38 {}
-
-class C40 extends C39 {}
-
-class C41 extends C40 {}
-
-class C42 extends C41 {}
-
-class C43 extends C42 {}
-
-class C44 extends C43 {}
-
-class C45 extends C44 {}
-
-class C46 extends C45 {}
-
-class C47 extends C46 {}
-
-class C48 extends C47 {}
-
-class C49 extends C48 {}
-
-class C50 extends C49 {}
-
-class C51 extends C50 {}
-
-class C52 extends C51 {}
-
-class C53 extends C52 {}
-
-class C54 extends C53 {}
-
-class C55 extends C54 {}
-
-class C56 extends C55 {}
-
-class C57 extends C56 {}
-
-class C58 extends C57 {}
-
-class C59 extends C58 {}
-
-class C60 extends C59 {}
-
-class C61 extends C60 {}
-
-class C62 extends C61 {}
-
-class C63 extends C62 {}
-
-class C64 extends C63 {}
-
-class C65 extends C64 {}
-
-class C66 extends C65 {}
-
-class C67 extends C66 {}
-
-class C68 extends C67 {}
-
-class C69 extends C68 {}
-
-class C70 extends C69 {}
-
-class C71 extends C70 {}
-
-class C72 extends C71 {}
-
-class C73 extends C72 {}
-
-class C74 extends C73 {}
-
-class C75 extends C74 {}
-
-class C76 extends C75 {}
-
-class C77 extends C76 {}
-
-class C78 extends C77 {}
-
-class C79 extends C78 {}
-
-class C80 extends C79 {}
-
-class C81 extends C80 {}
-
-class C82 extends C81 {}
-
-class C83 extends C82 {}
-
-class C84 extends C83 {}
-
-class C85 extends C84 {}
-
-class C86 extends C85 {}
-
-class C87 extends C86 {}
-
-class C88 extends C87 {}
-
-class C89 extends C88 {}
-
-class C90 extends C89 {}
-
-class C91 extends C90 {}
-
-class C92 extends C91 {}
-
-class C93 extends C92 {}
-
-class C94 extends C93 {}
-
-class C95 extends C94 {}
-
-class C96 extends C95 {}
-
-class C97 extends C96 {}
-
-class C98 extends C97 {}
-
-class C99 extends C98 {}
-
-class C100 extends C99 {}
-
-class C101 extends C100 {}
-
-class C102 extends C101 {}
-
-class C103 extends C102 {}
-
-class C104 extends C103 {}
-
-class C105 extends C104 {}
-
-class C106 extends C105 {}
-
-class C107 extends C106 {}
-
-class C108 extends C107 {}
-
-class C109 extends C108 {}
-
-class C110 extends C109 {}
-
-class C111 extends C110 {}
-
-class C112 extends C111 {}
-
-class C113 extends C112 {}
-
-class C114 extends C113 {}
-
-class C115 extends C114 {}
-
-class C116 extends C115 {}
-
-class C117 extends C116 {}
-
-class C118 extends C117 {}
-
-class C119 extends C118 {}
-
-class C120 extends C119 {}
-
-class C121 extends C120 {}
-
-class C122 extends C121 {}
-
-class C123 extends C122 {}
-
-class C124 extends C123 {}
-
-class C125 extends C124 {}
-
-class C126 extends C125 {}
diff --git a/tests/language_2/unsorted/smaller_4_Interface_Types_A11_t02_test.dart b/tests/language_2/unsorted/smaller_4_Interface_Types_A11_t02_test.dart
deleted file mode 100644
index d2c1af844e3..00000000000
--- a/tests/language_2/unsorted/smaller_4_Interface_Types_A11_t02_test.dart
+++ /dev/null
@@ -1,272 +0,0 @@
-
-// @dart = 2.9
-/*
- * Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
- * for details. All rights reserved. Use of this source code is governed by a
- * BSD-style license that can be found in the LICENSE file.
- */
-
-// This is a small version of the co19 test
-// Language/14_Types/4_Interface_Types_A11_t02.
-
-import 'package:expect/expect.dart';
-
-class C {}
-
-class G<T, S, U> {}
-
-main() {
-  Expect.isTrue(new G<C126, C126, C126>() is G<C, C, C>);
-}
-
-class C1 extends C {}
-
-class C2 extends C1 {}
-
-class C3 extends C2 {}
-
-class C4 extends C3 {}
-
-class C5 extends C4 {}
-
-class C6 extends C5 {}
-
-class C7 extends C6 {}
-
-class C8 extends C7 {}
-
-class C9 extends C8 {}
-
-class C10 extends C9 {}
-
-class C11 extends C10 {}
-
-class C12 extends C11 {}
-
-class C13 extends C12 {}
-
-class C14 extends C13 {}
-
-class C15 extends C14 {}
-
-class C16 extends C15 {}
-
-class C17 extends C16 {}
-
-class C18 extends C17 {}
-
-class C19 extends C18 {}
-
-class C20 extends C19 {}
-
-class C21 extends C20 {}
-
-class C22 extends C21 {}
-
-class C23 extends C22 {}
-
-class C24 extends C23 {}
-
-class C25 extends C24 {}
-
-class C26 extends C25 {}
-
-class C27 extends C26 {}
-
-class C28 extends C27 {}
-
-class C29 extends C28 {}
-
-class C30 extends C29 {}
-
-class C31 extends C30 {}
-
-class C32 extends C31 {}
-
-class C33 extends C32 {}
-
-class C34 extends C33 {}
-
-class C35 extends C34 {}
-
-class C36 extends C35 {}
-
-class C37 extends C36 {}
-
-class C38 extends C37 {}
-
-class C39 extends C38 {}
-
-class C40 extends C39 {}
-
-class C41 extends C40 {}
-
-class C42 extends C41 {}
-
-class C43 extends C42 {}
-
-class C44 extends C43 {}
-
-class C45 extends C44 {}
-
-class C46 extends C45 {}
-
-class C47 extends C46 {}
-
-class C48 extends C47 {}
-
-class C49 extends C48 {}
-
-class C50 extends C49 {}
-
-class C51 extends C50 {}
-
-class C52 extends C51 {}
-
-class C53 extends C52 {}
-
-class C54 extends C53 {}
-
-class C55 extends C54 {}
-
-class C56 extends C55 {}
-
-class C57 extends C56 {}
-
-class C58 extends C57 {}
-
-class C59 extends C58 {}
-
-class C60 extends C59 {}
-
-class C61 extends C60 {}
-
-class C62 extends C61 {}
-
-class C63 extends C62 {}
-
-class C64 extends C63 {}
-
-class C65 extends C64 {}
-
-class C66 extends C65 {}
-
-class C67 extends C66 {}
-
-class C68 extends C67 {}
-
-class C69 extends C68 {}
-
-class C70 extends C69 {}
-
-class C71 extends C70 {}
-
-class C72 extends C71 {}
-
-class C73 extends C72 {}
-
-class C74 extends C73 {}
-
-class C75 extends C74 {}
-
-class C76 extends C75 {}
-
-class C77 extends C76 {}
-
-class C78 extends C77 {}
-
-class C79 extends C78 {}
-
-class C80 extends C79 {}
-
-class C81 extends C80 {}
-
-class C82 extends C81 {}
-
-class C83 extends C82 {}
-
-class C84 extends C83 {}
-
-class C85 extends C84 {}
-
-class C86 extends C85 {}
-
-class C87 extends C86 {}
-
-class C88 extends C87 {}
-
-class C89 extends C88 {}
-
-class C90 extends C89 {}
-
-class C91 extends C90 {}
-
-class C92 extends C91 {}
-
-class C93 extends C92 {}
-
-class C94 extends C93 {}
-
-class C95 extends C94 {}
-
-class C96 extends C95 {}
-
-class C97 extends C96 {}
-
-class C98 extends C97 {}
-
-class C99 extends C98 {}
-
-class C100 extends C99 {}
-
-class C101 extends C100 {}
-
-class C102 extends C101 {}
-
-class C103 extends C102 {}
-
-class C104 extends C103 {}
-
-class C105 extends C104 {}
-
-class C106 extends C105 {}
-
-class C107 extends C106 {}
-
-class C108 extends C107 {}
-
-class C109 extends C108 {}
-
-class C110 extends C109 {}
-
-class C111 extends C110 {}
-
-class C112 extends C111 {}
-
-class C113 extends C112 {}
-
-class C114 extends C113 {}
-
-class C115 extends C114 {}
-
-class C116 extends C115 {}
-
-class C117 extends C116 {}
-
-class C118 extends C117 {}
-
-class C119 extends C118 {}
-
-class C120 extends C119 {}
-
-class C121 extends C120 {}
-
-class C122 extends C121 {}
-
-class C123 extends C122 {}
-
-class C124 extends C123 {}
-
-class C125 extends C124 {}
-
-class C126 extends C125 {}
diff --git a/tests/language_2/unsorted/stack_overflow_stacktrace_test.dart b/tests/language_2/unsorted/stack_overflow_stacktrace_test.dart
deleted file mode 100644
index f9db45e74a7..00000000000
--- a/tests/language_2/unsorted/stack_overflow_stacktrace_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart program testing stack overflow.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class StackOverflowTest {
-  static void curseTheRecurse(a, b, c) {
-    curseTheRecurse(b, c, a);
-  }
-
-  static void testMain() {
-    bool exceptionCaught = false;
-    try {
-      curseTheRecurse(1, 2, 3);
-    } on StackOverflowError catch (e, stacktrace) {
-      String s = stacktrace.toString();
-      Expect.equals(-1, s.indexOf("-1:-1"));
-      exceptionCaught = true;
-    }
-    Expect.equals(true, exceptionCaught);
-  }
-}
-
-main() {
-  StackOverflowTest.testMain();
-}
diff --git a/tests/language_2/unsorted/stack_overflow_test.dart b/tests/language_2/unsorted/stack_overflow_test.dart
deleted file mode 100644
index 43baa7a5bb1..00000000000
--- a/tests/language_2/unsorted/stack_overflow_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart program testing stack overflow.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class StackOverflowTest {
-  static void curseTheRecurse(a, b, c) {
-    curseTheRecurse(b, c, a);
-  }
-
-  static void testMain() {
-    bool exceptionCaught = false;
-    try {
-      curseTheRecurse(1, 2, 3);
-    } on StackOverflowError catch (e) {
-      exceptionCaught = true;
-    }
-    Expect.equals(true, exceptionCaught);
-  }
-}
-
-main() {
-  StackOverflowTest.testMain();
-}
diff --git a/tests/language_2/unsorted/state_mangling2_test.dart b/tests/language_2/unsorted/state_mangling2_test.dart
deleted file mode 100644
index ab8a3f3657e..00000000000
--- a/tests/language_2/unsorted/state_mangling2_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-foo(state) {
-  if (state == null) return 0;
-  var sum = 0;
-  state = inscrutableId(state);
-  for (int i = 0; i < state.length; i++) {
-    sum += state[i];
-  }
-  state = inscrutableId(state);
-  for (int i = 0; i < state.length; i++) {
-    sum += state[i];
-  }
-  return sum;
-}
-
-int inscrutable(int x) => x == 0 ? 0 : x | inscrutable(x & (x - 1));
-
-inscrutableId(x) {
-  if (x == 0) return inscrutable(x);
-  return (3 == inscrutable(3)) ? x : false;
-}
-
-class A {
-  int length = 3;
-  operator [](i) => 1;
-}
-
-main() {
-  Expect.equals(12, foo([1, 2, 3]));
-  if (inscrutableId(0) == 0) {
-    Expect.equals(6, foo(new A()));
-  }
-}
diff --git a/tests/language_2/unsorted/state_mangling3_test.dart b/tests/language_2/unsorted/state_mangling3_test.dart
deleted file mode 100644
index abd12881efa..00000000000
--- a/tests/language_2/unsorted/state_mangling3_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-foo(state0) {
-  if (state0 == null) return 0;
-  var sum = 0;
-  for (int i = 0; i < state0.length; i++) {
-    sum += state0[i];
-  }
-  state0 = inscrutableId(state0);
-  for (int i = 0; i < state0.length; i++) {
-    sum += state0[i];
-  }
-  return sum;
-}
-
-int inscrutable(int x) => x == 0 ? 0 : x | inscrutable(x & (x - 1));
-
-inscrutableId(x) {
-  if (x == 0) return inscrutable(x);
-  return (3 == inscrutable(3)) ? x : false;
-}
-
-class A {
-  int length = 3;
-  operator [](i) => 1;
-}
-
-main() {
-  Expect.equals(12, foo([1, 2, 3]));
-  if (inscrutableId(0) == 0) {
-    Expect.equals(6, foo(new A()));
-  }
-}
diff --git a/tests/language_2/unsorted/state_mangling4_test.dart b/tests/language_2/unsorted/state_mangling4_test.dart
deleted file mode 100644
index 29dd8cdc67d..00000000000
--- a/tests/language_2/unsorted/state_mangling4_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-foo(env1) {
-  if (env1 == null) return 0;
-  var env0 = 0;
-  for (int i = 0; i < env1.length; i++) {
-    env0 += env1[i];
-  }
-  env1 = inscrutableId(new A());
-  for (int i = 0; i < env1.length; i++) {
-    env0 += env1[i];
-  }
-  return env0;
-}
-
-int inscrutable(int x) => x == 0 ? 0 : x | inscrutable(x & (x - 1));
-
-inscrutableId(x) {
-  if (x == 0) return inscrutable(x);
-  return (3 == inscrutable(3)) ? x : false;
-}
-
-class A {
-  int length = 3;
-  operator [](i) => 1;
-}
-
-main() {
-  Expect.equals(9, foo([1, 2, 3]));
-  if (inscrutableId(0) == 0) {
-    Expect.equals(6, foo(new A()));
-  }
-}
diff --git a/tests/language_2/unsorted/state_mangling_test.dart b/tests/language_2/unsorted/state_mangling_test.dart
deleted file mode 100644
index 8c0232c5bd0..00000000000
--- a/tests/language_2/unsorted/state_mangling_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-foo(state) {
-  if (state == null) return 0;
-  var sum = 0;
-  for (int i = 0; i < state.length; i++) {
-    sum += state[i];
-  }
-  state = inscrutableId(state);
-  for (int i = 0; i < state.length; i++) {
-    sum += state[i];
-  }
-  return sum;
-}
-
-int inscrutable(int x) => x == 0 ? 0 : x | inscrutable(x & (x - 1));
-
-inscrutableId(x) {
-  if (x == 0) return inscrutable(x);
-  return (3 == inscrutable(3)) ? x : false;
-}
-
-class A {
-  int length = 3;
-  operator [](i) => 1;
-}
-
-main() {
-  Expect.equals(12, foo([1, 2, 3]));
-  if (inscrutableId(0) == 0) {
-    Expect.equals(6, foo(new A()));
-  }
-}
diff --git a/tests/language_2/unsorted/temp_mangling_test.dart b/tests/language_2/unsorted/temp_mangling_test.dart
deleted file mode 100644
index bade0ff5f13..00000000000
--- a/tests/language_2/unsorted/temp_mangling_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  testOne();
-  testTwo();
-}
-
-testOne() {
-  // Dart2JS uses t[0-9]* to declare temporaries, so a local variable
-  // with that pattern can conflict with them.
-  var t0 = [];
-  // By using 'is' check, we make sure 't0.length' does not become
-  // generate at use site.
-  Expect.isTrue(t0.length is int);
-  Expect.isTrue(t0 is List);
-}
-
-testTwo() {
-  var x = [];
-  var x_0 = [];
-  {
-    // This used to introduce x_0.
-    var x = new Set();
-    Expect.equals(0, x.length);
-    Expect.isTrue(x.isEmpty);
-  }
-  Expect.isTrue(x is List);
-  Expect.isTrue(x_0 is List);
-}
diff --git a/tests/language_2/unsorted/third_test.dart b/tests/language_2/unsorted/third_test.dart
deleted file mode 100644
index afb76cfb35e..00000000000
--- a/tests/language_2/unsorted/third_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Third dart test program.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A extends B {
-  var a;
-  static var s;
-
-  static foo() {
-    return s;
-  }
-
-  A(x, y)
-      : a = x,
-        super(y) {}
-
-  value() {
-    return a + b + foo();
-  }
-}
-
-class B {
-  var b;
-  static var s;
-
-  static foo(x) {
-    return x + s;
-  }
-
-  value() {
-    return b + foo(s) + A.foo();
-  }
-
-  B(x) : b = x {
-    b = b + 1;
-  }
-}
-
-class ThirdTest {
-  static testMain() {
-    var a = new A(1, 2);
-    var b = new B(3);
-    A.s = 4;
-    B.s = 5;
-    Expect.equals(26, a.value() + b.value());
-  }
-}
-
-main() {
-  ThirdTest.testMain();
-}
diff --git a/tests/language_2/unsorted/tree_shake_typed_selector_test.dart b/tests/language_2/unsorted/tree_shake_typed_selector_test.dart
deleted file mode 100644
index 3f165acfedb..00000000000
--- a/tests/language_2/unsorted/tree_shake_typed_selector_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Check that dart2js emits code for classes that implement another
-// class.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  factory A() => new B();
-  foo() => 0;
-}
-
-class B implements A {
-  foo() => 42;
-}
-
-main() {
-  var a = new A();
-  if (a is A) {
-    Expect.equals(42, a.foo());
-  } else {
-    Expect.fail('Should not be here');
-  }
-}
diff --git a/tests/language_2/unsorted/typecheck_multifield_declaration_test.dart b/tests/language_2/unsorted/typecheck_multifield_declaration_test.dart
deleted file mode 100644
index 178e82f104c..00000000000
--- a/tests/language_2/unsorted/typecheck_multifield_declaration_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Checks that we can correctly typecheck multi-variable declarations on fields
-/// and top-levels. This is also a regression test for Issue 27401.
-
-class A {}
-
-A a = new A(), b = new A();
-
-class B {
-  A a = new A(), b = new A();
-}
-
-main() => [a, b, new B().a, new B().b];
diff --git a/tests/language_2/unsorted/typed_equality_test.dart b/tests/language_2/unsorted/typed_equality_test.dart
deleted file mode 100644
index 5306e2dc79e..00000000000
--- a/tests/language_2/unsorted/typed_equality_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for http://dartbug.com/6036. dart2js used to fail
-// this method because it was computing that intersecting type D with
-// type C is conflicting.
-
-foo(a, b) {
-  if (identical(a, b)) return;
-  throw 'broken';
-}
-
-class D {}
-
-class C implements D {}
-
-main() {
-  var c = new C();
-  foo(c, c as D);
-}
diff --git a/tests/language_2/unsorted/typed_selector2_test.dart b/tests/language_2/unsorted/typed_selector2_test.dart
deleted file mode 100644
index 2a22bd4ba43..00000000000
--- a/tests/language_2/unsorted/typed_selector2_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test for dart2js to handle a typed selector with a typedef as a
-// receiver type.
-
-// @dart = 2.9
-
-getComparator() => (a, b) => 42;
-
-class A {
-  foo() => 42;
-}
-
-main() {
-  Comparator a = getComparator();
-  if (a(1, 2) != 42) {
-    // This call used to crash dart2js because 'foo' was a typed
-    // selector with a typedef as a receiver type.
-    a.foo();
-    //^^^
-    // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_METHOD
-    // [cfe] The method 'foo' isn't defined for the class 'int Function(dynamic, dynamic)'.
-  }
-  var b = new A();
-  b.foo();
-}
diff --git a/tests/language_2/unsorted/typed_selector_test.dart b/tests/language_2/unsorted/typed_selector_test.dart
deleted file mode 100644
index 0ad6715b966..00000000000
--- a/tests/language_2/unsorted/typed_selector_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Regression test for http://dartbug.com/6259. This test used to fail
-// on dart2js because class A does not know [A.document] is a target for
-// the call [:obj.document:] in the [main] method. Therefore, dart2js
-// would not compile [A.document].
-
-class A {
-  get document => 42;
-}
-
-abstract class B {
-  get document; // Abstract.
-}
-
-class C extends A implements B {}
-
-int inscrutable(int x) => x == 0 ? 0 : x | inscrutable(x & (x - 1));
-
-void main() {
-  var tab = [new Object(), new C()];
-  var obj = tab[inscrutable(1)];
-  int res = 0;
-  if (obj is B) res = obj.document;
-  Expect.equals(42, res);
-}
diff --git a/tests/language_2/unsorted/unevaluated_field_test.dart b/tests/language_2/unsorted/unevaluated_field_test.dart
deleted file mode 100644
index da3b760cc59..00000000000
--- a/tests/language_2/unsorted/unevaluated_field_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that environment constants in field initializers work properly.
-
-import "package:expect/expect.dart";
-
-const int gx =
-    const bool.hasEnvironment("x") ? const int.fromEnvironment("x") : null;
-
-class A {
-  final int x = gx;
-  final int y =
-      const bool.hasEnvironment("y") ? const int.fromEnvironment("y") : null;
-  const A();
-}
-
-main() {
-  const a = const A();
-  Expect.isTrue(a.x == null || a.x != null);
-  Expect.isTrue(a.y == null || a.y != null);
-}
diff --git a/tests/language_2/unsorted/unused_overridden_async_test.dart b/tests/language_2/unsorted/unused_overridden_async_test.dart
deleted file mode 100644
index ffb5b00f495..00000000000
--- a/tests/language_2/unsorted/unused_overridden_async_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-import 'dart:async';
-
-class Base {
-  Future<int> method() async {
-    throw 'Should be unused';
-  }
-}
-
-class Sub1 extends Base {
-  Future<int> method() async {
-    return 1;
-  }
-}
-
-class Sub2 extends Base {
-  Future<int> method() async {
-    return 2;
-  }
-}
-
-help(Base object) async {
-  print(await object.method());
-}
-
-main() async {
-  await help(new Sub1());
-  await help(new Sub2());
-}
diff --git a/tests/language_2/unsorted/value_range2_test.dart b/tests/language_2/unsorted/value_range2_test.dart
deleted file mode 100644
index 7059e688d0a..00000000000
--- a/tests/language_2/unsorted/value_range2_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-int inscrutable(int x) => x == 0 ? 0 : x | inscrutable(x & (x - 1));
-
-foo() {
-  int x = 0;
-  if (inscrutable(0) == 0) x = -2; // x is now in range [-2 .. 0].
-  int y = 2;
-  if (inscrutable(0) == 0) y = 4; // y is now in range [2 .. 4].
-  int i = y - x; // i should be in range [2 .. 6].
-  i -= 4; // i should be in range [-2 .. 2]. Actual value: 2.
-  var a = const [1];
-  return a[i];
-}
-
-main() {
-  Expect.throwsRangeError(() => foo());
-}
diff --git a/tests/language_2/unsorted/value_range3_test.dart b/tests/language_2/unsorted/value_range3_test.dart
deleted file mode 100644
index 4a025c3163b..00000000000
--- a/tests/language_2/unsorted/value_range3_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class A {
-  copy(array, index1, index2) {
-    if (index1 < index2 + index2) {
-      // dart2js used to remove the bounds check.
-      return array[index1];
-    }
-  }
-}
-
-main() {
-  Expect.throwsRangeError(() => new A().copy(new List.filled(0, null), 0, 1));
-}
diff --git a/tests/language_2/unsorted/value_range_test.dart b/tests/language_2/unsorted/value_range_test.dart
deleted file mode 100644
index 546899c506d..00000000000
--- a/tests/language_2/unsorted/value_range_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-int inscrutable(int x) => x == 0 ? 0 : x | inscrutable(x & (x - 1));
-
-foo() {
-  var x = 0x102;
-  if (inscrutable(x) == 0) x = 0x0;
-  if (inscrutable(10) == 10) x = 0x10; // x is in range [0 .. 0x102].
-  x = x & 0xFF; // x should be in range [0 .. 0xFF]. Actual value: 0x10.
-  var a = const [1, 2, 3];
-  return a[x];
-}
-
-main() {
-  Expect.throwsRangeError(() => foo());
-}
diff --git a/tests/language_2/unsorted/var_init_test.dart b/tests/language_2/unsorted/var_init_test.dart
deleted file mode 100644
index d5d00cc49be..00000000000
--- a/tests/language_2/unsorted/var_init_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Testing correct initialization of variables in scopes.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class VarInitTest {
-  static void testMain() {
-    for (int i = 0; i < 10; i++) {
-      var x;
-      Expect.equals(null, x);
-      x = 1;
-    }
-  }
-}
-
-main() {
-  VarInitTest.testMain();
-}
diff --git a/tests/language_2/variable/bad_initializer1_runtime_test.dart b/tests/language_2/variable/bad_initializer1_runtime_test.dart
deleted file mode 100644
index 420dc76d394..00000000000
--- a/tests/language_2/variable/bad_initializer1_runtime_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Variable initializer must not reference the initialized variable.
-
-main() {
-  const elems = const [
-    const [
-      1,
-      2.0,
-      true,
-      false,
-      0xffffffffff,
-
-    ],
-    "a",
-    "b"
-  ];
-}
diff --git a/tests/language_2/variable/bad_initializer1_test.dart b/tests/language_2/variable/bad_initializer1_test.dart
deleted file mode 100644
index eecfbc36286..00000000000
--- a/tests/language_2/variable/bad_initializer1_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Variable initializer must not reference the initialized variable.
-
-main() {
-  const elems = const [
-  //    ^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.RECURSIVE_COMPILE_TIME_CONSTANT
-    const [
-      1,
-      2.0,
-      true,
-      false,
-      0xffffffffff,
-      elems
-//    ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.REFERENCED_BEFORE_DECLARATION
-// [cfe] Local variable 'elems' can't be referenced before it is declared.
-// [cfe] Undefined name 'elems'.
-    ],
-    "a",
-    "b"
-  ];
-}
diff --git a/tests/language_2/variable/bad_initializer2_runtime_test.dart b/tests/language_2/variable/bad_initializer2_runtime_test.dart
deleted file mode 100644
index 50252bde5b7..00000000000
--- a/tests/language_2/variable/bad_initializer2_runtime_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Variable initializer must not reference the initialized variable.
-import "package:expect/expect.dart";
-
-main() {
-  var foo = (int n) {
-    if (n == 0) {
-      return 0;
-    } else {
-      return 1
-
-          ;
-    }
-  };
-  foo(1);
-}
diff --git a/tests/language_2/variable/bad_initializer2_test.dart b/tests/language_2/variable/bad_initializer2_test.dart
deleted file mode 100644
index dcc7cefd546..00000000000
--- a/tests/language_2/variable/bad_initializer2_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Variable initializer must not reference the initialized variable.
-import "package:expect/expect.dart";
-
-main() {
-  var foo = (int n) {
-    if (n == 0) {
-      return 0;
-    } else {
-      return 1
-          + foo(n - 1)
-          //^^^
-          // [analyzer] COMPILE_TIME_ERROR.REFERENCED_BEFORE_DECLARATION
-          // [cfe] Local variable 'foo' can't be referenced before it is declared.
-          // [cfe] Method not found: 'foo'.
-          ;
-    }
-  };
-  foo(1);
-//^
-// [cfe] Method not found: 'foo'.
-}
diff --git a/tests/language_2/variable/conflicting_type_variable_and_setter_test.dart b/tests/language_2/variable/conflicting_type_variable_and_setter_test.dart
deleted file mode 100644
index 16c48926dfb..00000000000
--- a/tests/language_2/variable/conflicting_type_variable_and_setter_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C<
-        D //# 01: compile-time error
-        E //# none: ok
-         > {
-  void set D(int value) {
-    field = value;
-  }
-
-  int field;
-}
-
-main() {
-  C<int> c = new C<int>();
-  c.D = 1;
-  Expect.equals(c.field, 1);
-}
diff --git a/tests/language_2/variable/cyclic_type_variable_test.dart b/tests/language_2/variable/cyclic_type_variable_test.dart
deleted file mode 100644
index 4e1d5836fa3..00000000000
--- a/tests/language_2/variable/cyclic_type_variable_test.dart
+++ /dev/null
@@ -1,69 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests cyclic reference to type variables in type expressions
-
-class Base<T> {}
-
-class Derived extends Base<Derived> {} // legal
-
-typedef void funcType<
-    T
-extends T //# 01: compile-time error
-    >(T arg);
-
-class DerivedFunc extends Base<funcType<DerivedFunc>> {}
-
-abstract class A<
-    S
-extends S //# 02: compile-time error
-    > {
-  S field;
-}
-
-abstract class B<U extends Base<U>> {
-  // legal
-  U field;
-}
-
-class C1<
-    V
-extends V // //# 03: compile-time error
-    > {
-  V field;
-}
-
-class C2<
-    V
-extends V // //# 04: compile-time error
-    > implements A<V> {
-  V field;
-}
-
-class D1<W extends Base<W>> {
-  // legal
-  W field;
-}
-
-class D2<W extends Base<W>> implements B<W> {
-  //   legal
-  W field;
-}
-
-class E<X extends Base<funcType<X>>> {
-  // legal
-
-  X field;
-}
-
-main() {
-  new C1<int>();
-  new C2<int>();
-  new D1<Derived>();
-  new D2<Derived>();
-  new E<DerivedFunc>();
-  funcType<Object> val = null;
-}
diff --git a/tests/language_2/variable/duplicate_field_with_initializer_runtime_test.dart b/tests/language_2/variable/duplicate_field_with_initializer_runtime_test.dart
deleted file mode 100644
index 0af58536268..00000000000
--- a/tests/language_2/variable/duplicate_field_with_initializer_runtime_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class Repeated {
-  var a, b = 'Something';
-
-}
-
-main() {}
diff --git a/tests/language_2/variable/duplicate_field_with_initializer_test.dart b/tests/language_2/variable/duplicate_field_with_initializer_test.dart
deleted file mode 100644
index 35a75d1cd6b..00000000000
--- a/tests/language_2/variable/duplicate_field_with_initializer_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Repeated {
-  var a, b = 'Something';
-  var b;
-  //  ^
-  // [analyzer] COMPILE_TIME_ERROR.DUPLICATE_DEFINITION
-  // [cfe] 'b' is already declared in this scope.
-}
-
-main() {}
diff --git a/tests/language_2/variable/fixed_type_variable2_test.dart b/tests/language_2/variable/fixed_type_variable2_test.dart
deleted file mode 100644
index 611aa7c3851..00000000000
--- a/tests/language_2/variable/fixed_type_variable2_test.dart
+++ /dev/null
@@ -1,85 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that type variables are passed on from subtypes that fixed the type
-// variable in inheritance.
-
-import 'package:expect/expect.dart';
-
-class A<T> {
-  B<T> createB() => new B<T>();
-}
-
-class NumA extends A<num> {}
-
-class B<T> {
-  T value;
-
-  void test(var o, bool expect) {
-    Expect.equals(expect, o is T);
-  }
-}
-
-class StringB extends B<String> {}
-
-class C<T> extends A<T> {}
-
-class IntC extends C<int> {}
-
-void main() {
-  testA(); //# 01: ok
-  testNumA(); //# 02: ok
-  testB(); //# 03: ok
-  testStringB(); //# 04: ok
-  testC(); //# 05: ok
-  testIntC(); //# 06: ok
-}
-
-void testA() {
-  var instanceA = new A<String>();
-  var instanceB = instanceA.createB();
-  instanceB.test(0.5, false);
-  instanceB.test(0, false);
-  instanceB.test('', true);
-}
-
-void testNumA() {
-  var instanceA = new NumA();
-  var instanceB = instanceA.createB();
-  instanceB.test(0.5, true);
-  instanceB.test(0, true);
-  instanceB.test('', false);
-}
-
-void testB() {
-  var instanceB = new B<int>();
-  instanceB.test(0.5, false);
-  instanceB.test(0, true);
-  instanceB.test('', false);
-}
-
-void testStringB() {
-  var instanceB = new StringB();
-  instanceB.test(0.5, false);
-  instanceB.test(0, false);
-  instanceB.test('', true);
-}
-
-void testC() {
-  var instanceA = new C<String>();
-  var instanceB = instanceA.createB();
-  instanceB.test(0.5, false);
-  instanceB.test(0, false);
-  instanceB.test('', true);
-}
-
-void testIntC() {
-  var instanceA = new IntC();
-  var instanceB = instanceA.createB();
-  instanceB.test(0.5, false);
-  instanceB.test(0, true);
-  instanceB.test('', false);
-}
diff --git a/tests/language_2/variable/fixed_type_variable_test.dart b/tests/language_2/variable/fixed_type_variable_test.dart
deleted file mode 100644
index 63e42529a64..00000000000
--- a/tests/language_2/variable/fixed_type_variable_test.dart
+++ /dev/null
@@ -1,85 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that type variables are passed on from subtypes that fixed the type
-// variable in inheritance.
-
-import 'package:expect/expect.dart';
-
-class A<T> {
-  B<T> createB() => new B<T>();
-}
-
-class NumA extends A<num> {}
-
-class B<T> {
-  T value;
-
-  void test(var type, bool expect) {
-    Expect.equals(expect, T == type);
-  }
-}
-
-class StringB extends B<String> {}
-
-class C<T> extends A<T> {}
-
-class IntC extends C<int> {}
-
-void main() {
-  testA(); //# 01: ok
-  testNumA(); //# 02: ok
-  testB(); //# 03: ok
-  testStringB(); //# 04: ok
-  testC(); //# 05: ok
-  testIntC(); //# 06: ok
-}
-
-void testA() {
-  var instanceA = new A<String>();
-  var instanceB = instanceA.createB();
-  instanceB.test(num, false);
-  instanceB.test(int, false);
-  instanceB.test(String, true);
-}
-
-void testNumA() {
-  var instanceA = new NumA();
-  var instanceB = instanceA.createB();
-  instanceB.test(num, true);
-  instanceB.test(int, false);
-  instanceB.test(String, false);
-}
-
-void testB() {
-  var instanceB = new B<int>();
-  instanceB.test(num, false);
-  instanceB.test(int, true);
-  instanceB.test(String, false);
-}
-
-void testStringB() {
-  var instanceB = new StringB();
-  instanceB.test(num, false);
-  instanceB.test(int, false);
-  instanceB.test(String, true);
-}
-
-void testC() {
-  var instanceA = new C<String>();
-  var instanceB = instanceA.createB();
-  instanceB.test(num, false);
-  instanceB.test(int, false);
-  instanceB.test(String, true);
-}
-
-void testIntC() {
-  var instanceA = new IntC();
-  var instanceB = instanceA.createB();
-  instanceB.test(num, false);
-  instanceB.test(int, true);
-  instanceB.test(String, false);
-}
diff --git a/tests/language_2/variable/illegal_initializer_runtime_test.dart b/tests/language_2/variable/illegal_initializer_runtime_test.dart
deleted file mode 100644
index 20049d9f236..00000000000
--- a/tests/language_2/variable/illegal_initializer_runtime_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class A {
-  A();
-  A.foo();
-}
-
-class B extends A {
-  B.c1()
-      : super.foo
-
-        ()
-
-  ;
-
-  B.foo();
-  B.c2()
-      : this.foo
-
-        ()
-
-  ;
-
-  B.c3()
-      : super
-
-        ()
-
-  ;
-
-  B();
-  B.c4()
-      : this
-
-        ()
-
-  ;
-}
-
-main() {
-  new B.c1();
-  new B.c2();
-  new B.c3();
-  new B.c4();
-}
diff --git a/tests/language_2/variable/illegal_initializer_test.dart b/tests/language_2/variable/illegal_initializer_test.dart
deleted file mode 100644
index e33e562b0d3..00000000000
--- a/tests/language_2/variable/illegal_initializer_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class A {
-  A();
-  A.foo();
-}
-
-class B extends A {
-  B.c1() : super.foo;
-//                  ^
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-// [cfe] Expected '(' after this.
-
-  B.foo();
-  B.c2() : this.foo;
-      //   ^^^^
-      // [analyzer] COMPILE_TIME_ERROR.INVALID_REFERENCE_TO_THIS
-      // [analyzer] SYNTACTIC_ERROR.MISSING_ASSIGNMENT_IN_INITIALIZER
-      //   ^^^^^^^^
-      // [analyzer] COMPILE_TIME_ERROR.INITIALIZER_FOR_NON_EXISTENT_FIELD
-      // [cfe] Can't access 'this' in a field initializer.
-      // [cfe] Expected an assignment after the field name.
-      //        ^^^
-      // [analyzer] COMPILE_TIME_ERROR.UNDEFINED_GETTER
-
-  B.c3() : super;
-  //            ^
-  // [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-  // [cfe] Expected '(' after this.
-  ;
-//^
-// [analyzer] SYNTACTIC_ERROR.EXPECTED_CLASS_MEMBER
-// [cfe] Expected a class member, but got ';'.
-
-  B();
-  B.c4() : this;
-      //   ^^^^
-      // [analyzer] COMPILE_TIME_ERROR.INITIALIZER_FOR_NON_EXISTENT_FIELD
-      // [analyzer] COMPILE_TIME_ERROR.INVALID_REFERENCE_TO_THIS
-      // [analyzer] SYNTACTIC_ERROR.MISSING_ASSIGNMENT_IN_INITIALIZER
-      // [cfe] Expected an assignment after the field name.
-      //       ^
-      // [analyzer] SYNTACTIC_ERROR.EXPECTED_TOKEN
-      // [cfe] Expected '.' before this.
-      // [cfe] Expected an identifier, but got ''.
-}
-
-main() {
-  new B.c1();
-  new B.c2();
-  new B.c3();
-  new B.c4();
-}
diff --git a/tests/language_2/variable/inference_captured_variable2_test.dart b/tests/language_2/variable/inference_captured_variable2_test.dart
deleted file mode 100644
index 2a3d845ac7e..00000000000
--- a/tests/language_2/variable/inference_captured_variable2_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Ensure that dart2js's receiver specialization optimization works
-// with captured variables.
-
-import "package:expect/expect.dart";
-
-var list = <dynamic>[new Object(), 31];
-
-main() {
-  Expect.throwsNoSuchMethodError(() => foo()() + 42);
-}
-
-foo() {
-  var a = list[0];
-  var closure = (() => a - 42);
-  return () => a + 54;
-}
diff --git a/tests/language_2/variable/inference_captured_variable_test.dart b/tests/language_2/variable/inference_captured_variable_test.dart
deleted file mode 100644
index cb7ce749082..00000000000
--- a/tests/language_2/variable/inference_captured_variable_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Ensure that dart2js's receiver specialization optimization works
-// with captured variables.
-
-import "package:expect/expect.dart";
-
-var list = <dynamic>[new Object(), 31];
-
-main() {
-  Expect.throwsNoSuchMethodError(() => foo()() + 42);
-}
-
-foo() {
-  var a = list[0];
-  var closure = (() => a + 42);
-  if (list[1] == 0) {
-    a.toInt();
-    return closure;
-  }
-  return closure;
-}
diff --git a/tests/language_2/variable/initializer_super_last_runtime_test.dart b/tests/language_2/variable/initializer_super_last_runtime_test.dart
deleted file mode 100644
index 2b8d84c896b..00000000000
--- a/tests/language_2/variable/initializer_super_last_runtime_test.dart
+++ /dev/null
@@ -1,172 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--enable-asserts
-//
-// Dart test program testing assert statements.
-
-import "package:expect/expect.dart";
-
-class S {
-  const S();
-  const S.named();
-}
-
-class C extends S {
-  final int x;
-  C.cc01(int x)
-      : x = x,
-        super();
-  C.cc02(int x)
-      : x = x,
-        super.named();
-  C.cc03(this.x) : super();
-  C.cc04(this.x) : super.named();
-  C.cc05(int x)
-      : x = x,
-        assert(x == x),
-        super();
-  C.cc06(int x)
-      : x = x,
-        assert(x == x),
-        super.named();
-  C.cc07(this.x)
-      : assert(x == x),
-        super();
-  C.cc08(this.x)
-      : assert(x == x),
-        super.named();
-  C.cc09(int x)
-      : //
-
-        x = x;
-  C.cc10(int x)
-      : //
-
-        x = x;
-  C.cc11(this.x)
-      : //
-
-        assert(x == x);
-  C.cc12(this.x)
-      : //
-
-        assert(x == x);
-  C.cc13(int x)
-      : //
-
-        x = x,
-        assert(x == x);
-  C.cc14(int x)
-      : //
-
-        x = x,
-        assert(x == x);
-  C.cc15(int x)
-      : x = x,
-
-        assert(x == x);
-  C.cc16(int x)
-      : x = x,
-
-        assert(x == x);
-
-  const C.cc17(int x)
-      : x = x,
-        super();
-  const C.cc18(int x)
-      : x = x,
-        super.named();
-  const C.cc19(this.x) : super();
-  const C.cc20(this.x) : super.named();
-  const C.cc21(int x)
-      : x = x,
-        assert(x == x),
-        super();
-  const C.cc22(int x)
-      : x = x,
-        assert(x == x),
-        super.named();
-  const C.cc23(this.x)
-      : assert(x == x),
-        super();
-  const C.cc24(this.x)
-      : assert(x == x),
-        super.named();
-  const C.cc25(int x)
-      : //
-
-        x = x;
-  const C.cc26(int x)
-      : //
-
-        x = x;
-  const C.cc27(this.x)
-      : //
-
-        assert(x == x);
-  const C.cc28(this.x)
-      : //
-
-        assert(x == x);
-  const C.cc29(int x)
-      : //
-
-        x = x,
-        assert(x == x);
-  const C.cc30(int x)
-      : //
-
-        x = x,
-        assert(x == x);
-  const C.cc31(int x)
-      : x = x,
-
-        assert(x == x);
-  const C.cc32(int x)
-      : x = x,
-
-        assert(x == x);
-}
-
-main() {
-  // Ensure that erroneous constructors are actually needed.
-  new C.cc01(42);
-  new C.cc02(42);
-  new C.cc03(42);
-  new C.cc04(42);
-  new C.cc05(42);
-  new C.cc06(42);
-  new C.cc07(42);
-  new C.cc08(42);
-  new C.cc09(42);
-  new C.cc10(42);
-  new C.cc11(42);
-  new C.cc12(42);
-  new C.cc13(42);
-  new C.cc14(42);
-  new C.cc15(42);
-  new C.cc16(42);
-
-  const C.cc17(42);
-  const C.cc18(42);
-  const C.cc19(42);
-  const C.cc20(42);
-  const C.cc21(42);
-  const C.cc22(42);
-  const C.cc23(42);
-  const C.cc24(42);
-  const C.cc25(42);
-  const C.cc26(42);
-  const C.cc27(42);
-  const C.cc28(42);
-  const C.cc29(42);
-  const C.cc30(42);
-  const C.cc31(42);
-  const C.cc32(42);
-}
diff --git a/tests/language_2/variable/initializer_super_last_test.dart b/tests/language_2/variable/initializer_super_last_test.dart
deleted file mode 100644
index 6f205950f08..00000000000
--- a/tests/language_2/variable/initializer_super_last_test.dart
+++ /dev/null
@@ -1,241 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--enable-asserts
-//
-// Dart test program testing assert statements.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class S {
-  const S();
-  const S.named();
-}
-
-class C extends S {
-  final int x;
-  C.cc01(int x)
-      : x = x,
-        super();
-  C.cc02(int x)
-      : x = x,
-        super.named();
-  C.cc03(this.x) : super();
-  C.cc04(this.x) : super.named();
-  C.cc05(int x)
-      : x = x,
-        assert(x == x),
-        super();
-  C.cc06(int x)
-      : x = x,
-        assert(x == x),
-        super.named();
-  C.cc07(this.x)
-      : assert(x == x),
-        super();
-  C.cc08(this.x)
-      : assert(x == x),
-        super.named();
-  C.cc09(int x)
-      : //
-        super(),
-//      ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUPER_INVOCATION_NOT_LAST
-        x = x;
-        //^
-        // [cfe] Can't have initializers after 'super'.
-  C.cc10(int x)
-      : //
-        super.named(),
-//      ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUPER_INVOCATION_NOT_LAST
-        x = x;
-        //^
-        // [cfe] Can't have initializers after 'super'.
-  C.cc11(this.x)
-      : //
-        super(),
-//      ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUPER_INVOCATION_NOT_LAST
-        assert(x == x);
-//      ^
-// [cfe] Can't have initializers after 'super'.
-  C.cc12(this.x)
-      : //
-        super.named(),
-//      ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUPER_INVOCATION_NOT_LAST
-        assert(x == x);
-//      ^
-// [cfe] Can't have initializers after 'super'.
-  C.cc13(int x)
-      : //
-        super(),
-//      ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUPER_INVOCATION_NOT_LAST
-        x = x,
-        //^
-        // [cfe] Can't have initializers after 'super'.
-        assert(x == x);
-//      ^
-// [cfe] Can't have initializers after 'super'.
-  C.cc14(int x)
-      : //
-        super.named(),
-//      ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUPER_INVOCATION_NOT_LAST
-        x = x,
-        //^
-        // [cfe] Can't have initializers after 'super'.
-        assert(x == x);
-//      ^
-// [cfe] Can't have initializers after 'super'.
-  C.cc15(int x)
-      : x = x,
-        super(),
-//      ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUPER_INVOCATION_NOT_LAST
-        assert(x == x);
-//      ^
-// [cfe] Can't have initializers after 'super'.
-  C.cc16(int x)
-      : x = x,
-        super.named(),
-//      ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUPER_INVOCATION_NOT_LAST
-        assert(x == x);
-//      ^
-// [cfe] Can't have initializers after 'super'.
-
-  const C.cc17(int x)
-      : x = x,
-        super();
-  const C.cc18(int x)
-      : x = x,
-        super.named();
-  const C.cc19(this.x) : super();
-  const C.cc20(this.x) : super.named();
-  const C.cc21(int x)
-      : x = x,
-        assert(x == x),
-        super();
-  const C.cc22(int x)
-      : x = x,
-        assert(x == x),
-        super.named();
-  const C.cc23(this.x)
-      : assert(x == x),
-        super();
-  const C.cc24(this.x)
-      : assert(x == x),
-        super.named();
-  const C.cc25(int x)
-      : //
-        super(),
-//      ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUPER_INVOCATION_NOT_LAST
-        x = x;
-        //^
-        // [cfe] Can't have initializers after 'super'.
-  const C.cc26(int x)
-      : //
-        super.named(),
-//      ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUPER_INVOCATION_NOT_LAST
-        x = x;
-        //^
-        // [cfe] Can't have initializers after 'super'.
-  const C.cc27(this.x)
-      : //
-        super(),
-//      ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUPER_INVOCATION_NOT_LAST
-        assert(x == x);
-//      ^
-// [cfe] Can't have initializers after 'super'.
-  const C.cc28(this.x)
-      : //
-        super.named(),
-//      ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUPER_INVOCATION_NOT_LAST
-        assert(x == x);
-//      ^
-// [cfe] Can't have initializers after 'super'.
-  const C.cc29(int x)
-      : //
-        super(),
-//      ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUPER_INVOCATION_NOT_LAST
-        x = x,
-        //^
-        // [cfe] Can't have initializers after 'super'.
-        assert(x == x);
-//      ^
-// [cfe] Can't have initializers after 'super'.
-  const C.cc30(int x)
-      : //
-        super.named(),
-//      ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUPER_INVOCATION_NOT_LAST
-        x = x,
-        //^
-        // [cfe] Can't have initializers after 'super'.
-        assert(x == x);
-//      ^
-// [cfe] Can't have initializers after 'super'.
-  const C.cc31(int x)
-      : x = x,
-        super(),
-//      ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUPER_INVOCATION_NOT_LAST
-        assert(x == x);
-//      ^
-// [cfe] Can't have initializers after 'super'.
-  const C.cc32(int x)
-      : x = x,
-        super.named(),
-//      ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUPER_INVOCATION_NOT_LAST
-        assert(x == x);
-//      ^
-// [cfe] Can't have initializers after 'super'.
-}
-
-main() {
-  // Ensure that erroneous constructors are actually needed.
-  new C.cc01(42);
-  new C.cc02(42);
-  new C.cc03(42);
-  new C.cc04(42);
-  new C.cc05(42);
-  new C.cc06(42);
-  new C.cc07(42);
-  new C.cc08(42);
-  new C.cc09(42);
-  new C.cc10(42);
-  new C.cc11(42);
-  new C.cc12(42);
-  new C.cc13(42);
-  new C.cc14(42);
-  new C.cc15(42);
-  new C.cc16(42);
-
-  const C.cc17(42);
-  const C.cc18(42);
-  const C.cc19(42);
-  const C.cc20(42);
-  const C.cc21(42);
-  const C.cc22(42);
-  const C.cc23(42);
-  const C.cc24(42);
-  const C.cc25(42);
-  const C.cc26(42);
-  const C.cc27(42);
-  const C.cc28(42);
-  const C.cc29(42);
-  const C.cc30(42);
-  const C.cc31(42);
-  const C.cc32(42);
-}
diff --git a/tests/language_2/variable/inst_field_initializer1_test.dart b/tests/language_2/variable/inst_field_initializer1_test.dart
deleted file mode 100644
index 3d6c05c8a55..00000000000
--- a/tests/language_2/variable/inst_field_initializer1_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Catch illegal access to 'this' in initialized instance fields.
-
-class A {
-  var x = 5;
-  var arr = [x]; // Illegal access to 'this'.
-  //         ^
-  // [analyzer] COMPILE_TIME_ERROR.IMPLICIT_THIS_REFERENCE_IN_INITIALIZER
-  // [cfe] Can't access 'this' in a field initializer to read 'x'.
-}
-
-void main() {
-  A();
-}
diff --git a/tests/language_2/variable/inst_field_initializer_test.dart b/tests/language_2/variable/inst_field_initializer_test.dart
deleted file mode 100644
index c97b9067d62..00000000000
--- a/tests/language_2/variable/inst_field_initializer_test.dart
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test for instance field initializer expressions.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Cheese {
-  static const mild = 1;
-  static const stinky = 2;
-
-  // Instance fields with initializer expression.
-  String name = "";
-  var smell = mild;
-
-  Cheese() {
-    Expect.equals("", this.name);
-    Expect.equals(Cheese.mild, this.smell);
-  }
-
-  Cheese.initInBlock(String s) {
-    Expect.equals("", this.name);
-    Expect.equals(Cheese.mild, this.smell);
-    this.name = s;
-  }
-
-  Cheese.initFieldParam(this.name, this.smell) {}
-
-  // Test that static const field Cheese.mild is not shadowed
-  // by the parameter mild when compiling the field initializer
-  // for instance field smell.
-  Cheese.hideAndSeek(var mild) : name = mild {
-    Expect.equals(mild, this.name);
-    Expect.equals(Cheese.mild, this.smell);
-  }
-}
-
-class HasNoExplicitConstructor {
-  String s = "Tilsiter";
-}
-
-main() {
-  var generic = new Cheese();
-  Expect.equals("", generic.name);
-  Expect.equals(Cheese.mild, generic.smell);
-
-  var gruyere = new Cheese.initInBlock("Gruyere");
-  Expect.equals("Gruyere", gruyere.name);
-  Expect.equals(Cheese.mild, gruyere.smell);
-
-  var munster = new Cheese.initFieldParam("Munster", Cheese.stinky);
-  Expect.equals("Munster", munster.name);
-  Expect.equals(Cheese.stinky, munster.smell);
-
-  var brie = new Cheese.hideAndSeek("Brie");
-  Expect.equals("Brie", brie.name);
-  Expect.equals(Cheese.mild, brie.smell);
-
-  var t = new HasNoExplicitConstructor();
-  Expect.equals("Tilsiter", t.s);
-}
diff --git a/tests/language_2/variable/labeled_variable_declaration_test.dart b/tests/language_2/variable/labeled_variable_declaration_test.dart
deleted file mode 100644
index 3f59df9d0b0..00000000000
--- a/tests/language_2/variable/labeled_variable_declaration_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-main() {
-  L:
-  var x, y;
-  x = 42;
-  y = x;
-}
diff --git a/tests/language_2/variable/ref_before_declaration_runtime_test.dart b/tests/language_2/variable/ref_before_declaration_runtime_test.dart
deleted file mode 100644
index 8ef4def26a1..00000000000
--- a/tests/language_2/variable/ref_before_declaration_runtime_test.dart
+++ /dev/null
@@ -1,102 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test compile-time errors for illegal variable declarations if the name
-// has been referenced before the variable is declared.
-
-import 'dart:math' as math;
-
-use(value) => value;
-
-var x = 0;
-final y = 0;
-
-class C {
-  var f;
-  C() : f = 'How do you spell PTSD?';
-
-  void test1() {
-    use(f); // Refers to instance field f.
-
-  }
-
-  void test2() {
-    void localFunc() {
-      use(f); // Refers to instance field f.
-    }
-
-
-    if (true) {
-      var f = 1; // ok, shadows outer f and instance field f.
-    }
-  }
-
-  void test3() {
-    if (true) {
-      use(x); // Refers to top-level x.
-      use(y); // Refers to top-level y.
-    }
-
-
-  }
-
-  void test4() {
-    void Q() {
-
-    }
-
-
-
-
-
-  }
-
-  test() {
-    test1();
-    test2();
-    test3();
-    test4();
-  }
-}
-
-void testTypeRef() {
-  String s = 'Can vegetarians eat animal crackers?';
-
-}
-
-void testLibPrefix() {
-  var pie = math.pi;
-
-}
-
-void noErrorsExpected() {
-  use(x);
-  for (var x = 0; x < 10; x++) use(x);
-  for (var i = 0; i < 10; i++) var x = 0;
-  if (true) var x = 0;
-  while (false) var x = 0;
-  try {
-    throw "ball";
-  } catch (x) {
-    use(x);
-  }
-  switch (x) {
-    case 0:
-      var x = 'Does fuzzy logic tickle?';
-  }
-  var int = 007;
-}
-
-void main() {
-  var c = new C();
-  c.test();
-  testTypeRef();
-  testLibPrefix();
-  noErrorsExpected();
-}
diff --git a/tests/language_2/variable/ref_before_declaration_test.dart b/tests/language_2/variable/ref_before_declaration_test.dart
deleted file mode 100644
index bbec25cff8a..00000000000
--- a/tests/language_2/variable/ref_before_declaration_test.dart
+++ /dev/null
@@ -1,125 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test compile-time errors for illegal variable declarations if the name
-// has been referenced before the variable is declared.
-
-import 'dart:math' as math;
-
-use(value) => value;
-
-var x = 0;
-final y = 0;
-
-class C {
-  var f;
-  C() : f = 'How do you spell PTSD?';
-
-  void test1() {
-    use(f); // Refers to instance field f.
-    //  ^
-    // [analyzer] COMPILE_TIME_ERROR.REFERENCED_BEFORE_DECLARATION
-    // [cfe] Local variable 'f' can't be referenced before it is declared.
-    var f = 'A shut mouth gathers no foot.';
-  }
-
-  void test2() {
-    void localFunc() {
-      use(f); // Refers to instance field f.
-      //  ^
-      // [analyzer] COMPILE_TIME_ERROR.REFERENCED_BEFORE_DECLARATION
-      // [cfe] Local variable 'f' can't be referenced before it is declared.
-    }
-
-    var f = 'When chemists die, they barium.';
-    if (true) {
-      var f = 1; // ok, shadows outer f and instance field f.
-    }
-  }
-
-  void test3() {
-    if (true) {
-      use(x); // Refers to top-level x.
-      //  ^
-      // [analyzer] COMPILE_TIME_ERROR.REFERENCED_BEFORE_DECLARATION
-      // [cfe] Local variable 'x' can't be referenced before it is declared.
-      use(y); // Refers to top-level y.
-      //  ^
-      // [analyzer] COMPILE_TIME_ERROR.REFERENCED_BEFORE_DECLARATION
-      // [cfe] Local variable 'y' can't be referenced before it is declared.
-    }
-    final x = "I have not yet begun to procrastinate.";
-    const y = "Honk if you like peace and quiet!";
-  }
-
-  void test4() {
-    void Q() {
-      P(); // Refers to non-existing top-level function P
-//    ^
-// [analyzer] COMPILE_TIME_ERROR.REFERENCED_BEFORE_DECLARATION
-// [cfe] Local variable 'P' can't be referenced before it is declared.
-// [cfe] The method 'P' isn't defined for the class 'C'.
-    }
-    void P() {
-      Q();
-    }
-
-    Function f = () {x = f;};
-    //                   ^
-    // [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
-    // [analyzer] COMPILE_TIME_ERROR.REFERENCED_BEFORE_DECLARATION
-    // [cfe] Local variable 'f' can't be referenced before it is declared.
-  }
-
-  test() {
-    test1();
-    test2();
-    test3();
-    test4();
-  }
-}
-
-void testTypeRef() {
-  String s = 'Can vegetarians eat animal crackers?';
-//^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.REFERENCED_BEFORE_DECLARATION
-// [cfe] Local variable 'String' can't be referenced before it is declared.
-  var String = "I distinctly remember forgetting that.";
-}
-
-void testLibPrefix() {
-  var pie = math.pi;
-  //        ^^^^
-  // [analyzer] COMPILE_TIME_ERROR.REFERENCED_BEFORE_DECLARATION
-  // [cfe] Local variable 'math' can't be referenced before it is declared.
-  final math = 0;
-}
-
-void noErrorsExpected() {
-  use(x);
-  for (var x = 0; x < 10; x++) use(x);
-  for (var i = 0; i < 10; i++) var x = 0;
-  if (true) var x = 0;
-  while (false) var x = 0;
-  try {
-    throw "ball";
-  } catch (x) {
-    use(x);
-  }
-  switch (x) {
-    case 0:
-      var x = 'Does fuzzy logic tickle?';
-  }
-  var int = 007;
-}
-
-void main() {
-  var c = new C();
-  c.test();
-  testTypeRef();
-  testLibPrefix();
-  noErrorsExpected();
-}
diff --git a/tests/language_2/variable/scope_variable_runtime_test.dart b/tests/language_2/variable/scope_variable_runtime_test.dart
deleted file mode 100644
index d30a2d31fdd..00000000000
--- a/tests/language_2/variable/scope_variable_runtime_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// TODO(multitest): This was automatically migrated from a multitest and may
-// contain strange or dead code.
-
-// @dart = 2.9
-
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-void testSimpleScope() {
-  {
-    var a = "Test";
-    int b = 1;
-  }
-  {
-    var c;
-    int d;
-    Expect.isNull(c);
-    Expect.isNull(d);
-  }
-}
-
-void testShadowingScope() {
-  var a = "Test";
-  {
-    var a;
-    Expect.isNull(a);
-    a = "a";
-    Expect.equals(a, "a");
-  }
-  Expect.equals(a, "Test");
-}
-
-int testShadowingAfterUse() {
-  var a = 1;
-  {
-    var b = 2;
-    var c = a; // Use of 'a' prior to its shadow declaration below.
-    var d = b + c;
-    // Shadow declaration of 'a'.
-
-    return d + a;
-  }
-}
-
-main() {
-  testSimpleScope();
-  testShadowingScope();
-  testShadowingAfterUse();
-}
diff --git a/tests/language_2/variable/scope_variable_test.dart b/tests/language_2/variable/scope_variable_test.dart
deleted file mode 100644
index f9750e6d125..00000000000
--- a/tests/language_2/variable/scope_variable_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void testSimpleScope() {
-  {
-    var a = "Test";
-    int b = 1;
-  }
-  {
-    var c;
-    int d;
-    Expect.isNull(c);
-    Expect.isNull(d);
-  }
-}
-
-void testShadowingScope() {
-  var a = "Test";
-  {
-    var a;
-    Expect.isNull(a);
-    a = "a";
-    Expect.equals(a, "a");
-  }
-  Expect.equals(a, "Test");
-}
-
-int testShadowingAfterUse() {
-  var a = 1;
-  {
-    var b = 2;
-    var c = a; // Use of 'a' prior to its shadow declaration below.
-    //      ^
-    // [analyzer] COMPILE_TIME_ERROR.REFERENCED_BEFORE_DECLARATION
-    // [cfe] Local variable 'a' can't be referenced before it is declared.
-    var d = b + c;
-    // Shadow declaration of 'a'.
-    var a = 5;
-    return d + a;
-  }
-}
-
-main() {
-  testSimpleScope();
-  testShadowingScope();
-  testShadowingAfterUse();
-}
diff --git a/tests/language_2/variable/scoped_variables_try_catch_test.dart b/tests/language_2/variable/scoped_variables_try_catch_test.dart
deleted file mode 100644
index 9726429171d..00000000000
--- a/tests/language_2/variable/scoped_variables_try_catch_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test that try/catch does not shadow a variable at runtime.
-
-main() {
-  var a = bar();
-  try {
-    a = bar();
-  } catch (e) {}
-  Expect.equals(42, a);
-
-  {
-    var a = foo();
-    try {
-      a = foo();
-    } catch (e) {}
-    Expect.equals(54, a);
-  }
-
-  Expect.equals(42, a);
-}
-
-bar() => 42;
-foo() => 54;
diff --git a/tests/language_2/variable/variable_declaration_metadata_test.dart b/tests/language_2/variable/variable_declaration_metadata_test.dart
deleted file mode 100644
index f4c34fb7f41..00000000000
--- a/tests/language_2/variable/variable_declaration_metadata_test.dart
+++ /dev/null
@@ -1,88 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that the individual variable declarations inside a variable
-// declaration list are not allowed to be annotated with metadata.
-
-const annotation = null;
-
-var
-  @annotation //# 01: syntax error
-    v1,
-  @annotation //# 02: syntax error
-    v2;
-
-int
-  @annotation //# 03: syntax error
-    v3,
-  @annotation //# 04: syntax error
-    v4;
-
-class C {
-  var
-    @annotation //# 05: syntax error
-      f1,
-    @annotation //# 06: syntax error
-      f2;
-
-  int
-    @annotation //# 07: syntax error
-      f3,
-    @annotation //# 08: syntax error
-      f4;
-}
-
-use(x) => x;
-
-main() {
-  use(v1);
-  use(v2);
-  use(v3);
-  use(v4);
-
-  C c = new C();
-  use(c.f1);
-  use(c.f2);
-  use(c.f3);
-  use(c.f4);
-
-  var
-    @annotation //# 09: syntax error
-      l1,
-    @annotation //# 10: syntax error
-      l2;
-
-  int
-    @annotation //# 11: syntax error
-      l3,
-    @annotation //# 12: syntax error
-      l4;
-
-  use(l1);
-  use(l2);
-  use(l3);
-  use(l4);
-
-  for (var
-         @annotation //# 13: syntax error
-      i1 = 0,
-         @annotation //# 14: syntax error
-      i2 = 0;;) {
-    use(i1);
-    use(i2);
-    break;
-  }
-
-  for (int
-         @annotation //# 15: syntax error
-      i3 = 0,
-         @annotation //# 16: syntax error
-      i4 = 0;;) {
-    use(i3);
-    use(i4);
-    break;
-  }
-}
diff --git a/tests/language_2/variable/variable_named_dart_test.dart b/tests/language_2/variable/variable_named_dart_test.dart
deleted file mode 100644
index d88fb9c8448..00000000000
--- a/tests/language_2/variable/variable_named_dart_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-main() {
-  dynamic dart = 123;
-  Expect.equals(dart.toDouble(), 123.0);
-}
diff --git a/tests/language_2/vm/allocate_overflow_array_test.dart b/tests/language_2/vm/allocate_overflow_array_test.dart
deleted file mode 100644
index f7499618417..00000000000
--- a/tests/language_2/vm/allocate_overflow_array_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-const interestingLengths = <int>[
-  0x3FFFFFFF00000000,
-  0x3FFFFFFFFFFFF000,
-  0x3FFFFFFFFFFFFF00,
-  0x3FFFFFFFFFFFFFF0,
-  0x3FFFFFFFFFFFFFFE,
-  0x3FFFFFFFFFFFFFFF,
-  0x7FFFFFFF00000000,
-  0x7FFFFFFFFFFFF000,
-  0x7FFFFFFFFFFFFF00,
-  0x7FFFFFFFFFFFFFF0,
-  0x7FFFFFFFFFFFFFFE,
-  0x7FFFFFFFFFFFFFFF,
-];
-
-main() {
-  for (int interestingLength in interestingLengths) {
-    for (int elementLength in <int>[1, 2, 3, 4, 5, 6, 7, 8, 9]) {
-      print(interestingLength ~/ elementLength);
-
-      Expect.throws(() {
-        var array = new List.filled(interestingLength ~/ elementLength, null);
-        print(array.first);
-      }, (e) => e is OutOfMemoryError);
-    }
-  }
-}
diff --git a/tests/language_2/vm/allocate_overflow_bytearray_test.dart b/tests/language_2/vm/allocate_overflow_bytearray_test.dart
deleted file mode 100644
index d9aa360f806..00000000000
--- a/tests/language_2/vm/allocate_overflow_bytearray_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:typed_data';
-
-import 'package:expect/expect.dart';
-
-const interestingLengths = <int>[
-  0x3FFFFFFF00000000,
-  0x3FFFFFFFFFFFFFF0,
-  0x3FFFFFFFFFFFFFFE,
-  0x3FFFFFFFFFFFFFFF,
-  0x7FFFFFFF00000000,
-  0x7FFFFFFFFFFFFFF0,
-  0x7FFFFFFFFFFFFFFE,
-  0x7FFFFFFFFFFFFFFF,
-];
-
-main() {
-  for (int interestingLength in interestingLengths) {
-    bool exceptionCheck(e) {
-      // Allow RangeError as the range check may happen before the allocation.
-      return e is RangeError || e is OutOfMemoryError;
-    }
-
-    print(interestingLength);
-
-    Expect.throws(() {
-      var bytearray = new Uint8List(interestingLength);
-      print(bytearray.first);
-    }, exceptionCheck);
-
-    Expect.throws(() {
-      var bytearray = new Uint8ClampedList(interestingLength);
-      print(bytearray.first);
-    }, exceptionCheck);
-
-    Expect.throws(() {
-      var bytearray = new Int8List(interestingLength);
-      print(bytearray.first);
-    }, exceptionCheck);
-
-    Expect.throws(() {
-      var bytearray = new ByteData(interestingLength);
-      print(bytearray.getUint8(0));
-    }, exceptionCheck);
-  }
-}
diff --git a/tests/language_2/vm/allocate_overflow_string_test.dart b/tests/language_2/vm/allocate_overflow_string_test.dart
deleted file mode 100644
index 464dea8139f..00000000000
--- a/tests/language_2/vm/allocate_overflow_string_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-const interestingLengths = <int>[
-  0x3FFFFFFF00000000,
-  0x3FFFFFFFFFFFFFF0,
-  0x3FFFFFFFFFFFFFFE,
-  0x3FFFFFFFFFFFFFFF,
-  0x7FFFFFFF00000000,
-  0x7FFFFFFFFFFFFFF0,
-  0x7FFFFFFFFFFFFFFE,
-  0x7FFFFFFFFFFFFFFF,
-];
-
-main() {
-  for (int interestingLength in interestingLengths) {
-    print(interestingLength);
-
-    Expect.throws(() {
-      var oneByteString = "v";
-      oneByteString *= interestingLength;
-    }, (e) => e is OutOfMemoryError);
-
-    Expect.throws(() {
-      var oneByteString = "v";
-      oneByteString = oneByteString.padLeft(interestingLength);
-    }, (e) => e is OutOfMemoryError);
-
-    Expect.throws(() {
-      var oneByteString = "v";
-      oneByteString = oneByteString.padRight(interestingLength);
-    }, (e) => e is OutOfMemoryError);
-  }
-}
diff --git a/tests/language_2/vm/allocation_sinking_arrays_test.dart b/tests/language_2/vm/allocation_sinking_arrays_test.dart
deleted file mode 100644
index 98961310edc..00000000000
--- a/tests/language_2/vm/allocation_sinking_arrays_test.dart
+++ /dev/null
@@ -1,91 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--optimization-counter-threshold=100 --deterministic
-
-// Tests allocation sinking of arrays and typed data objects.
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-class Vector2 {
-  final Float64List _v2storage;
-
-  @pragma('vm:prefer-inline')
-  Vector2.zero() : _v2storage = Float64List(2);
-
-  @pragma('vm:prefer-inline')
-  factory Vector2(double x, double y) => Vector2.zero()..setValues(x, y);
-
-  @pragma('vm:prefer-inline')
-  factory Vector2.copy(Vector2 other) => Vector2.zero()..setFrom(other);
-
-  @pragma('vm:prefer-inline')
-  Vector2 clone() => Vector2.copy(this);
-
-  @pragma('vm:prefer-inline')
-  void setValues(double x_, double y_) {
-    _v2storage[0] = x_;
-    _v2storage[1] = y_;
-  }
-
-  @pragma('vm:prefer-inline')
-  void setFrom(Vector2 other) {
-    final otherStorage = other._v2storage;
-    _v2storage[1] = otherStorage[1];
-    _v2storage[0] = otherStorage[0];
-  }
-
-  @pragma('vm:prefer-inline')
-  Vector2 operator +(Vector2 other) => clone()..add(other);
-
-  @pragma('vm:prefer-inline')
-  void add(Vector2 arg) {
-    final argStorage = arg._v2storage;
-    _v2storage[0] = _v2storage[0] + argStorage[0];
-    _v2storage[1] = _v2storage[1] + argStorage[1];
-  }
-
-  @pragma('vm:prefer-inline')
-  double get x => _v2storage[0];
-
-  @pragma('vm:prefer-inline')
-  double get y => _v2storage[1];
-}
-
-@pragma('vm:never-inline')
-String foo(double x, num doDeopt) {
-  // All allocations in this function are eliminated by the compiler,
-  // except array allocation for string interpolation at the end.
-  List v1 = List.filled(2, null);
-  v1[0] = 1;
-  v1[1] = 'hi';
-  Vector2 v2 = new Vector2(1.0, 2.0);
-  Vector2 v3 = v2 + Vector2(x, x);
-  double sum = v3.x + v3.y;
-  Float32List v4 = Float32List(2);
-  v4[0] = 11.0;
-  v4[1] = sum + 3;
-  print(v4[0]);
-  // Deoptimization is triggered here to materialize removed allocations.
-  doDeopt + 2;
-  return "v1: [${v1[0]},${v1[1]}], v2: [${v2.x},${v2.y}], v3: [${v3.x},${v3.y}], v4: [${v4[0]}, ${v4[1]}], sum: $sum";
-}
-
-main() {
-  // Due to '--optimization-counter-threshold=100 --deterministic'
-  // foo() is optimized during the first 100 iterations.
-  // After that, on iteration 120 deoptimization is triggered by changed
-  // type of 'doDeopt'. That forces materialization of all objects which
-  // allocations were removed by optimizer.
-  for (int i = 0; i < 130; ++i) {
-    final num doDeopt = (i < 120 ? 1 : 2.0);
-    final result = foo(3.0, doDeopt);
-    Expect.equals(
-        "v1: [1,hi], v2: [1.0,2.0], v3: [4.0,5.0], v4: [11.0, 12.0], sum: 9.0",
-        result);
-  }
-}
diff --git a/tests/language_2/vm/allocation_sinking_vm_test.dart b/tests/language_2/vm/allocation_sinking_vm_test.dart
deleted file mode 100644
index 845c0a026f3..00000000000
--- a/tests/language_2/vm/allocation_sinking_vm_test.dart
+++ /dev/null
@@ -1,341 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test allocation sinking optimization.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-class Point {
-  var x, y;
-
-  Point(this.x, this.y);
-
-  operator *(other) {
-    return x * other.x + y * other.y;
-  }
-}
-
-class C {
-  var p;
-  C(this.p);
-}
-
-class Pointx4 {
-  var x, y;
-
-  Pointx4(this.x, this.y);
-
-  operator *(other) {
-    return x * other.x + y * other.y;
-  }
-}
-
-class Cx4 {
-  var p;
-  Cx4(this.p);
-}
-
-class D {
-  var p;
-  D(this.p);
-}
-
-// Class that is used to capture materialized Point object with * operator.
-class F {
-  var p;
-  var val;
-
-  F(this.p);
-
-  operator *(other) {
-    Expect.isTrue(other is Point);
-    Expect.equals(42.0, other.x);
-    Expect.equals(0.5, other.y);
-
-    if (val == null) {
-      val = other;
-    } else {
-      Expect.isTrue(identical(val, other));
-    }
-
-    return this.p * other;
-  }
-}
-
-test1(c, x, y) {
-  var a = new Point(x - 0.5, y + 0.5);
-  var b = new Point(x + 0.5, y + 0.8);
-  var d = new Point(c.p * a, c.p * b);
-  return d * d;
-}
-
-test1x4(c, x, y, z, w) {
-  var a = new Pointx4(x - z, y + w);
-  var b = new Pointx4(x + w, y + z);
-  var d = new Pointx4(c.p * a, c.p * b);
-  return d * d;
-}
-
-effects() {
-  // This function should not be inlinable.
-  try {} catch (e) {}
-}
-
-testForwardingThroughEffects(c, x, y) {
-  var a = new Point(x - 0.5, y + 0.5);
-  var b = new Point(x - 0.5, y - 0.8);
-  var d = new Point(c.p * a, c.p * b);
-  // Effects can't affect neither a, b, nor d because they do not escape.
-  effects();
-  effects();
-  return ((a == null) ? 0.0 : 0.1) + (d * d);
-}
-
-testIdentity(x) {
-  var y = new Point(42.0, 0.5);
-  var z = y;
-  return x * y + x * z;
-}
-
-class PointP<T> {
-  var x, y;
-
-  PointP(this.x, this.y);
-
-  operator *(other) {
-    return x * other.x + y * other.y;
-  }
-}
-
-foo2() => new PointP<int>(1, 3) * new PointP<num>(5, 6);
-
-class A<T> {
-  var x, y;
-}
-
-foo3(x) {
-  // Test materialization of type arguments.
-  var a = new A<int>();
-  a.x = x;
-  a.y = x;
-  if (x is int) return a.x + a.y;
-  Expect.isFalse(a is A<double>);
-  Expect.isTrue(a is A<int>);
-  Expect.isTrue(a is A);
-  return a.x - a.y;
-}
-
-class WithFinal {
-  final _x;
-  WithFinal(this._x);
-}
-
-testInitialValueForFinalField(x) {
-  new WithFinal(x);
-}
-
-testFinalField() {
-  for (var i = 0; i < 100; i++) {
-    testInitialValueForFinalField(1);
-  }
-}
-
-class V {
-  var x = 0;
-}
-
-test_vm_field() {
-  var obj;
-  inner() => obj.x = 42;
-  var a = new V();
-  obj = a;
-  var t1 = a.x;
-  var t2 = inner();
-  return a.x + t1 + t2;
-}
-
-testVMField() {
-  Expect.equals(84, test_vm_field());
-  for (var i = 0; i < 100; i++) test_vm_field();
-  Expect.equals(84, test_vm_field());
-}
-
-class CompoundA {
-  var b;
-  CompoundA(this.b);
-}
-
-class CompoundB {
-  var c;
-  CompoundB(this.c);
-}
-
-class CompoundC {
-  var d;
-  var root;
-  CompoundC(this.d);
-}
-
-class NoopSink {
-  const NoopSink();
-  call(val) {}
-}
-
-testCompound1() {
-  f(d, [sink = const NoopSink()]) {
-    var c = new CompoundC(d);
-    var a = new CompoundA(new CompoundB(c));
-    sink(a);
-    return c.d;
-  }
-
-  Expect.equals(0.1, f(0.1));
-  for (var i = 0; i < 100; i++) f(0.1);
-  Expect.equals(0.1, f(0.1));
-  Expect.equals(
-      0.1,
-      f(0.1, (val) {
-        Expect.isTrue(val is CompoundA);
-        Expect.isTrue(val.b is CompoundB);
-        Expect.isTrue(val.b.c is CompoundC);
-        Expect.isNull(val.b.c.root);
-        Expect.equals(0.1, val.b.c.d);
-      }));
-}
-
-testCompound2() {
-  f(d, [sink = const NoopSink()]) {
-    var c = new CompoundC(d);
-    var a = new CompoundA(new CompoundB(c));
-    c.root = a;
-    sink(a);
-    return c.d;
-  }
-
-  Expect.equals(0.1, f(0.1));
-  for (var i = 0; i < 100; i++) f(0.1);
-  Expect.equals(0.1, f(0.1));
-  Expect.equals(
-      0.1,
-      f(0.1, (val) {
-        Expect.isTrue(val is CompoundA);
-        Expect.isTrue(val.b is CompoundB);
-        Expect.isTrue(val.b.c is CompoundC);
-        Expect.equals(val, val.b.c.root);
-        Expect.equals(0.1, val.b.c.d);
-      }));
-}
-
-testCompound3() {
-  f(d, [sink = const NoopSink()]) {
-    var c = new CompoundC(d);
-    c.root = c;
-    sink(c);
-    return c.d;
-  }
-
-  Expect.equals(0.1, f(0.1));
-  for (var i = 0; i < 100; i++) f(0.1);
-  Expect.equals(0.1, f(0.1));
-  Expect.equals(
-      0.1,
-      f(0.1, (val) {
-        Expect.isTrue(val is CompoundC);
-        Expect.equals(val, val.root);
-        Expect.equals(0.1, val.d);
-      }));
-}
-
-testCompound4() {
-  f(d, [sink = const NoopSink()]) {
-    var c = new CompoundC(d);
-    c.root = c;
-    for (var i = 0; i < 10; i++) {
-      c.d += 1.0;
-    }
-    sink(c);
-    return c.d - 1.0 * 10;
-  }
-
-  Expect.equals(1.0, f(1.0));
-  for (var i = 0; i < 100; i++) f(1.0);
-  Expect.equals(1.0, f(1.0));
-  Expect.equals(
-      1.0,
-      f(1.0, (val) {
-        Expect.isTrue(val is CompoundC);
-        Expect.equals(val, val.root);
-        Expect.equals(11.0, val.d);
-      }));
-}
-
-main() {
-  var c = new C(new Point(0.1, 0.2));
-
-  // Compute initial values.
-  final x0 = test1(c, 11.11, 22.22);
-  var fc = new Cx4(new Pointx4(
-      new Float32x4(1.0, 1.0, 1.0, 1.0), new Float32x4(1.0, 1.0, 1.0, 1.0)));
-  final fx0 = test1x4(
-      fc,
-      new Float32x4(1.0, 1.0, 1.0, 1.0),
-      new Float32x4(1.0, 1.0, 1.0, 1.0),
-      new Float32x4(1.0, 1.0, 1.0, 1.0),
-      new Float32x4(1.0, 1.0, 1.0, 1.0));
-  final y0 = testForwardingThroughEffects(c, 11.11, 22.22);
-  final z0 = testIdentity(c.p);
-
-  // Force optimization.
-  for (var i = 0; i < 100; i++) {
-    test1(c, i.toDouble(), i.toDouble());
-    test1x4(
-        fc,
-        new Float32x4(1.0, 1.0, 1.0, 1.0),
-        new Float32x4(1.0, 1.0, 1.0, 1.0),
-        new Float32x4(1.0, 1.0, 1.0, 1.0),
-        new Float32x4(1.0, 1.0, 1.0, 1.0));
-    testForwardingThroughEffects(c, i.toDouble(), i.toDouble());
-    testIdentity(c.p);
-    foo2();
-    Expect.equals(10, foo3(5));
-  }
-  Expect.equals(0.0, foo3(0.5));
-
-  // Test returned value after optimization.
-  final x1 = test1(c, 11.11, 22.22);
-  final y1 = testForwardingThroughEffects(c, 11.11, 22.22);
-
-  // Test returned value after deopt.
-  final x2 = test1(new D(c.p), 11.11, 22.22);
-  final y2 = testForwardingThroughEffects(new D(c.p), 11.11, 22.22);
-
-  Expect.equals(6465, (x0 * 100).floor());
-  Expect.equals(6465, (x1 * 100).floor());
-  Expect.equals(6465, (x2 * 100).floor());
-  Expect.equals(x0, x1);
-  Expect.equals(x0, x2);
-
-  Expect.equals(6008, (y0 * 100).floor());
-  Expect.equals(6008, (y1 * 100).floor());
-  Expect.equals(6008, (y2 * 100).floor());
-  Expect.equals(y0, y1);
-  Expect.equals(y0, y2);
-
-  // Test that identity of materialized objects is preserved correctly and
-  // no copies are materialized.
-  final z1 = testIdentity(c.p);
-  final z2 = testIdentity(new F(c.p));
-  Expect.equals(z0, z1);
-  Expect.equals(z0, z2);
-
-  testFinalField();
-  testVMField();
-  testCompound1();
-  testCompound2();
-  testCompound3();
-  testCompound4();
-}
diff --git a/tests/language_2/vm/async_await_catch_stacktrace_test.dart b/tests/language_2/vm/async_await_catch_stacktrace_test.dart
deleted file mode 100644
index 16584de2324..00000000000
--- a/tests/language_2/vm/async_await_catch_stacktrace_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-void main() {
-  x() async {
-    print("Starting!");
-    try {
-      await runAsync();
-    } catch (e, st) {
-      print("Got exception and stacktrace:");
-      var stText = st.toString();
-      print(e);
-      print(stText);
-      // Stacktrace should be something like
-      // #0      runAsync.<runAsync_async_body> (this file)
-      // #1      Future.Future.microtask.<anonymous closure> (dart:async/future.dart:184)
-      // #2      _microtaskLoop (dart:async/schedule_microtask.dart:41)
-      // #3      _startMicrotaskLoop (dart:async/schedule_microtask.dart:50)
-      // #4      _runPendingImmediateCallback (dart:isolate-patch/isolate_patch.dart:96)
-      // #5      _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:149)
-
-      // if exception and stacktrace is rethrown correctly, NOT
-
-      // #0      main.<anonymous closure>.async_op (this file)
-      // #1      _asyncErrorWrapperHelper.<anonymous closure> (dart:async:134:33)
-      // #2      _RootZone.runBinary (dart:async/zone.dart:1410:54)
-      // #3      _FutureListener.handleError (dart:async/future_impl.dart:146:20)
-      // #4      _Future._propagateToListeners.handleError (dart:async/future_impl.dart:649:47)
-      // #5      _Future._propagateToListeners (dart:async/future_impl.dart:671:13)
-      // #6      _Future._completeError (dart:async/future_impl.dart:485:5)
-      // #7      _SyncCompleter._completeError (dart:async/future_impl.dart:56:12)
-      // #8      _Completer.completeError (dart:async/future_impl.dart:27:5)
-      // #9      runAsync.async_op (this file)
-      // #10     Future.Future.microtask.<anonymous closure> (dart:async/future.dart:184:26)
-      // #11     _microtaskLoop (dart:async/schedule_microtask.dart:41:5)
-      // #12     _startMicrotaskLoop (dart:async/schedule_microtask.dart:50:5)
-      // #13     _runPendingImmediateCallback (dart:isolate:1054:5)
-      // #14     _RawReceivePortImpl._handleMessage (dart:isolate:1104:5)
-
-      Expect.isFalse(stText.contains("propagateToListeners"));
-      Expect.isFalse(stText.contains("_completeError"));
-    }
-    print("Ending!");
-  }
-
-  asyncStart();
-  x().then((_) => asyncEnd());
-}
-
-runAsync() async {
-  throw 'oh no!';
-}
diff --git a/tests/language_2/vm/await_synchronous_future_test.dart b/tests/language_2/vm/await_synchronous_future_test.dart
deleted file mode 100644
index 1a314ca9bd9..00000000000
--- a/tests/language_2/vm/await_synchronous_future_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that async/await syntax works for synchronously completed futures.
-// Such futures are used by Flutter (see http://dartbug.com/32098).
-
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-class SynchronousFuture<T> implements Future<T> {
-  final T v;
-
-  SynchronousFuture(this.v);
-
-  Future<E> then<E>(FutureOr<E> f(T v), {Function onError}) {
-    final u = f(v);
-    return u is Future<dynamic>
-        ? (u as Future<dynamic>).then((v) => v as E)
-        : new SynchronousFuture<E>(u);
-  }
-
-  Stream<T> asStream() => throw 'unimplemented';
-  Future<T> catchError(Function onError, {bool test(dynamic error)}) =>
-      throw 'unimplemented';
-  Future<T> timeout(Duration timeLimit, {dynamic onTimeout()}) =>
-      throw 'unimplemented';
-  Future<T> whenComplete(dynamic action()) => throw 'unimplemented';
-}
-
-void main() {
-  var stage = 0;
-  asyncTest(() async {
-    int v;
-    Expect.equals(0, stage++);
-    v = await new SynchronousFuture<int>(stage);
-    Expect.equals(1, v);
-    Expect.equals(1, stage++);
-    v = await new SynchronousFuture<int>(stage);
-    Expect.equals(2, v);
-    Expect.equals(2, stage++);
-    v = await new SynchronousFuture<int>(stage);
-    Expect.equals(3, v);
-    Expect.equals(3, stage++);
-  });
-}
diff --git a/tests/language_2/vm/bitnot_int_test.dart b/tests/language_2/vm/bitnot_int_test.dart
deleted file mode 100644
index 2d7a6073832..00000000000
--- a/tests/language_2/vm/bitnot_int_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--no_background_compilation --optimization_counter_threshold=10
-
-import "package:expect/expect.dart";
-
-// Tests for long bit-not under 64-bit arithmetic wrap-around semantics.
-
-final int maxInt32 = 2147483647;
-final int minInt32 = -2147483648;
-final int maxInt64 = 0x7fffffffffffffff;
-final int minInt64 = 0x8000000000000000;
-
-int bitnot(int x) {
-  return ~x;
-}
-
-doConstant() {
-  Expect.equals(0, bitnot(-1));
-  Expect.equals(-1, bitnot(0));
-  Expect.equals(-2, bitnot(1));
-
-  Expect.equals(minInt32, bitnot(maxInt32));
-  Expect.equals(maxInt32, bitnot(minInt32));
-  Expect.equals(minInt64, bitnot(maxInt64));
-  Expect.equals(maxInt64, bitnot(minInt64)); // sic!
-}
-
-doVar() {
-  int d = 0;
-  for (int i = -88; i < 10; i++) {
-    d += bitnot(i);
-  }
-  Expect.equals(3773, d);
-}
-
-main() {
-  // Repeat tests to enter JIT (when applicable).
-  for (int i = 0; i < 20; i++) {
-    doConstant();
-    doVar();
-  }
-}
diff --git a/tests/language_2/vm/bool_check_stack_traces_test.dart b/tests/language_2/vm/bool_check_stack_traces_test.dart
deleted file mode 100644
index cd9c490d7d6..00000000000
--- a/tests/language_2/vm/bool_check_stack_traces_test.dart
+++ /dev/null
@@ -1,105 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class Test1 {
-  void bar(bool condition) {
-    if (condition) {
-      Expect.fail('Should not reach here');
-    }
-    Expect.fail('Should throw earlier');
-  }
-}
-
-void test1(bool condition) {
-  Test1 obj = new Test1();
-  obj.bar(condition);
-}
-
-class Test2 {
-  bool condition;
-  Test2(this.condition);
-
-  void bar() {
-    if (!condition) {
-      Expect.fail('Should not reach here');
-    }
-    Expect.fail('Should throw earlier');
-  }
-}
-
-void test2(bool condition) {
-  Test2 obj = new Test2(condition);
-  obj.bar();
-}
-
-class Test3 {
-  bool condition;
-  Test3(this.condition);
-
-  bool bazz() => condition;
-
-  void bar() {
-    while (bazz() || bazz()) {
-      Expect.fail('Should not reach here');
-    }
-    Expect.fail('Should throw earlier');
-  }
-}
-
-void test3(bool condition) {
-  Test3 obj = new Test3(condition);
-  obj.bar();
-}
-
-const bool test4Condition = null;
-
-void test4(bool condition) {
-  if (test4Condition) {
-    Expect.fail('Should not reach here');
-  }
-  Expect.fail('Should throw earlier');
-}
-
-void test5(bool condition) {
-  if (null) {
-    Expect.fail('Should not reach here');
-  }
-  Expect.fail('Should throw earlier');
-}
-
-void testStackTrace(void testCase(bool condition), List<int> lineNumbers) {
-  try {
-    testCase(null);
-    Expect.fail("Using null in a bool condition should throw TypeError");
-  } catch (e, stacktrace) {
-    print('--------- exception ---------');
-    print(e);
-    print('-------- stack trace --------');
-    print(stacktrace);
-    print('-----------------------------');
-
-    Expect.isTrue(e is AssertionError);
-    Expect.equals(
-        'Failed assertion: boolean expression must not be null', e.toString());
-
-    final String st = stacktrace.toString();
-    for (int lineNum in lineNumbers) {
-      String item = '.dart:$lineNum';
-      Expect.isTrue(st.contains(item), "Stack trace doesn't contain $item");
-    }
-    print('OK');
-  }
-}
-
-main() {
-  testStackTrace(test1, [11, 20]);
-  testStackTrace(test2, [28, 37]);
-  testStackTrace(test3, [47, 56]);
-  testStackTrace(test4, [62]); //# 01: ok
-  testStackTrace(test5, [69]); //# 02: ok
-}
diff --git a/tests/language_2/vm/canonicalization_preserves_deopt_test.dart b/tests/language_2/vm/canonicalization_preserves_deopt_test.dart
deleted file mode 100644
index 593fdd2b60e..00000000000
--- a/tests/language_2/vm/canonicalization_preserves_deopt_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization_counter_threshold=10 --no-use-osr --no-background_compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class X {
-  operator *(other) => "NaNNaNNaNNaNBatman";
-}
-
-foo(x) => (x * 1.0) is double;
-
-bar(x) {
-  try {
-    int i = (x * 1);
-    return true;
-  } catch (e) {
-    return false;
-  }
-}
-
-baz(x) => (x * 1) == x;
-
-main() {
-  for (var i = 0; i < 100; i++) {
-    Expect.isTrue(foo(1.0));
-    assert(() {
-      Expect.isTrue(bar(-1 << 63));
-      return true;
-    }());
-    Expect.isTrue(baz(-1 << 63));
-  }
-  Expect.isFalse(foo(new X()));
-  assert(() {
-    Expect.isFalse(bar(new X()));
-    return true;
-  }());
-  Expect.isFalse(baz(new X()));
-}
diff --git a/tests/language_2/vm/checked_smi_comparison_test.dart b/tests/language_2/vm/checked_smi_comparison_test.dart
deleted file mode 100644
index 777ca3f1e41..00000000000
--- a/tests/language_2/vm/checked_smi_comparison_test.dart
+++ /dev/null
@@ -1,88 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=
-// VMOptions=--use_slow_path
-
-import "package:expect/expect.dart";
-
-@pragma("vm:never-inline")
-dynamic hiddenSmi() {
-  try {
-    throw 42;
-  } catch (e) {
-    return e;
-  }
-  return 0;
-}
-
-@pragma("vm:never-inline")
-dynamic hiddenMint() {
-  try {
-    throw 0x8000000000000000;
-  } catch (e) {
-    return e;
-  }
-  return 0;
-}
-
-@pragma("vm:never-inline")
-dynamic hiddenDouble() {
-  try {
-    throw 3.0;
-  } catch (e) {
-    return e;
-  }
-  return 0;
-}
-
-@pragma("vm:never-inline")
-dynamic hiddenCustom() {
-  try {
-    throw new Custom();
-  } catch (e) {
-    return e;
-  }
-  return 0;
-}
-
-class Custom {
-  operator <(other) => "lt";
-  operator >(other) => "gt";
-  operator <=(other) => "le";
-  operator >=(other) => "ge";
-  operator ==(other) => false;
-}
-
-main() {
-  Expect.equals(false, hiddenSmi() < 2);
-  Expect.equals(true, hiddenSmi() > 2);
-  Expect.equals(false, hiddenSmi() <= 2);
-  Expect.equals(true, hiddenSmi() >= 2);
-  Expect.equals(false, hiddenSmi() == 2);
-  Expect.equals(true, hiddenSmi() != 2);
-
-  Expect.equals(true, hiddenMint() < 2);
-  Expect.equals(false, hiddenMint() > 2);
-  Expect.equals(true, hiddenMint() <= 2);
-  Expect.equals(false, hiddenMint() >= 2);
-  Expect.equals(false, hiddenMint() == 2);
-  Expect.equals(true, hiddenMint() != 2);
-
-  Expect.equals(false, hiddenDouble() < 2);
-  Expect.equals(true, hiddenDouble() > 2);
-  Expect.equals(false, hiddenDouble() <= 2);
-  Expect.equals(true, hiddenDouble() >= 2);
-  Expect.equals(false, hiddenDouble() == 2);
-  Expect.equals(true, hiddenDouble() != 2);
-
-  Expect.equals("lt", hiddenCustom() < 2);
-  Expect.equals("gt", hiddenCustom() > 2);
-  Expect.equals("le", hiddenCustom() <= 2);
-  Expect.equals("ge", hiddenCustom() >= 2);
-  Expect.equals(false, hiddenCustom() == 2);
-  Expect.equals(true, hiddenCustom() != 2);
-}
diff --git a/tests/language_2/vm/checked_smi_op_test.dart b/tests/language_2/vm/checked_smi_op_test.dart
deleted file mode 100644
index 5e1f8cd8383..00000000000
--- a/tests/language_2/vm/checked_smi_op_test.dart
+++ /dev/null
@@ -1,109 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=
-// VMOptions=--use_slow_path
-
-import "package:expect/expect.dart";
-
-@pragma("vm:never-inline")
-dynamic hiddenSmi() {
-  try {
-    throw 42;
-  } catch (e) {
-    return e;
-  }
-  return 0;
-}
-
-@pragma("vm:never-inline")
-dynamic hiddenMint() {
-  try {
-    throw 0x8000000000000000;
-  } catch (e) {
-    return e;
-  }
-  return 0;
-}
-
-@pragma("vm:never-inline")
-dynamic hiddenDouble() {
-  try {
-    throw 3.0;
-  } catch (e) {
-    return e;
-  }
-  return 0;
-}
-
-@pragma("vm:never-inline")
-dynamic hiddenCustom() {
-  try {
-    throw new Custom();
-  } catch (e) {
-    return e;
-  }
-  return 0;
-}
-
-class Custom {
-  operator +(other) => "add";
-  operator -(other) => "sub";
-  operator *(other) => "mul";
-  operator ~/(other) => "div";
-  operator %(other) => "mod";
-  operator &(other) => "and";
-  operator |(other) => "or";
-  operator ^(other) => "xor";
-  operator <<(other) => "sll";
-  operator >>(other) => "sra";
-}
-
-main() {
-  Expect.equals(44, hiddenSmi() + 2);
-  Expect.equals(40, hiddenSmi() - 2);
-  Expect.equals(84, hiddenSmi() * 2);
-  Expect.equals(21, hiddenSmi() ~/ 2);
-  Expect.equals(0, hiddenSmi() % 2);
-  Expect.equals(2, hiddenSmi() & 2);
-  Expect.equals(42, hiddenSmi() | 2);
-  Expect.equals(40, hiddenSmi() ^ 2);
-  Expect.equals(168, hiddenSmi() << 2);
-  Expect.equals(10, hiddenSmi() >> 2);
-
-  Expect.equals(-9223372036854775806, hiddenMint() + 2);
-  Expect.equals(9223372036854775806, hiddenMint() - 2);
-  Expect.equals(0, hiddenMint() * 2);
-  Expect.equals(-4611686018427387904, hiddenMint() ~/ 2);
-  Expect.equals(0, hiddenMint() % 2);
-  Expect.equals(0, hiddenMint() & 2);
-  Expect.equals(-9223372036854775806, hiddenMint() | 2);
-  Expect.equals(-9223372036854775806, hiddenMint() ^ 2);
-  Expect.equals(0, hiddenMint() << 2);
-  Expect.equals(-2305843009213693952, hiddenMint() >> 2);
-
-  Expect.equals(5.0, hiddenDouble() + 2);
-  Expect.equals(1.0, hiddenDouble() - 2);
-  Expect.equals(6.0, hiddenDouble() * 2);
-  Expect.equals(1, hiddenDouble() ~/ 2);
-  Expect.equals(1.0, hiddenDouble() % 2);
-  Expect.throws(() => hiddenDouble() & 2, (e) => e is NoSuchMethodError);
-  Expect.throws(() => hiddenDouble() | 2, (e) => e is NoSuchMethodError);
-  Expect.throws(() => hiddenDouble() ^ 2, (e) => e is NoSuchMethodError);
-  Expect.throws(() => hiddenDouble() << 2, (e) => e is NoSuchMethodError);
-  Expect.throws(() => hiddenDouble() >> 2, (e) => e is NoSuchMethodError);
-
-  Expect.equals("add", hiddenCustom() + 2);
-  Expect.equals("sub", hiddenCustom() - 2);
-  Expect.equals("mul", hiddenCustom() * 2);
-  Expect.equals("div", hiddenCustom() ~/ 2);
-  Expect.equals("mod", hiddenCustom() % 2);
-  Expect.equals("and", hiddenCustom() & 2);
-  Expect.equals("or", hiddenCustom() | 2);
-  Expect.equals("xor", hiddenCustom() ^ 2);
-  Expect.equals("sll", hiddenCustom() << 2);
-  Expect.equals("sra", hiddenCustom() >> 2);
-}
diff --git a/tests/language_2/vm/clamp_37868_test.dart b/tests/language_2/vm/clamp_37868_test.dart
deleted file mode 100755
index dce6bcd253b..00000000000
--- a/tests/language_2/vm/clamp_37868_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--deterministic
-
-import "package:expect/expect.dart";
-
-import 'dart:typed_data';
-
-// Found by "value-guided" DartFuzzing: incorrect clamping.
-// https://github.com/dart-lang/sdk/issues/37868
-@pragma("vm:never-inline")
-foo(List<int> x) => Uint8ClampedList.fromList(x);
-
-@pragma("vm:never-inline")
-bar(List<int> x) => Uint8List.fromList(x);
-
-@pragma("vm:never-inline")
-baz(List<int> x) => Int8List.fromList(x);
-
-main() {
-  // Proper values.
-  final List<int> x = [
-    9223372036854775807,
-    -9223372036854775808,
-    9223372032559808513,
-    -9223372032559808513,
-    5000000000,
-    -5000000000,
-    2147483647,
-    -2147483648,
-    255,
-    -255,
-    11,
-    -11,
-    0,
-    -1,
-  ];
-  Expect.listEquals(
-      [255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 11, 0, 0, 0], foo(x));
-  Expect.listEquals(
-      [255, 0, 1, 255, 0, 0, 255, 0, 255, 1, 11, 245, 0, 255], bar(x));
-  Expect.listEquals([-1, 0, 1, -1, 0, 0, -1, 0, -1, 1, 11, -11, 0, -1], baz(x));
-
-  // Hidden null.
-  final List<int> a = [1, null, 2];
-  int num_exceptions = 0;
-  try {
-    foo(a);
-  } on NoSuchMethodError catch (e) {
-    num_exceptions++;
-  }
-  try {
-    bar(a);
-  } on NoSuchMethodError catch (e) {
-    num_exceptions++;
-  }
-  try {
-    baz(a);
-  } on NoSuchMethodError catch (e) {
-    num_exceptions++;
-  }
-  Expect.equals(3, num_exceptions);
-}
diff --git a/tests/language_2/vm/closure_memory_retention_test.dart b/tests/language_2/vm/closure_memory_retention_test.dart
deleted file mode 100644
index 5e473fde952..00000000000
--- a/tests/language_2/vm/closure_memory_retention_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--old_gen_heap_size=50
-
-// @dart = 2.9
-
-// Test that non-capturing closures don't retain unnecessary memory.
-// It tests that the context of `f` allocated within `bar` not leaking and does
-// not become the context of empty non-capturing closure allocated inside `foo`.
-// If failing it crashes with an OOM error.
-
-import "package:expect/expect.dart";
-
-foo() {
-  return () {};
-}
-
-bar(a, b) {
-  f() => [a, b];
-  return foo();
-}
-
-main() {
-  var closure = null;
-  for (var i = 0; i < 100; i++) {
-    closure = bar(closure, new List.filled(1024 * 1024, null));
-  }
-  Expect.isTrue(closure is Function);
-}
diff --git a/tests/language_2/vm/create_array_instr_deopt2_test.dart b/tests/language_2/vm/create_array_instr_deopt2_test.dart
deleted file mode 100644
index 83ae58120b9..00000000000
--- a/tests/language_2/vm/create_array_instr_deopt2_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-foo(n) {
-  return new List.filled(n, null);
-}
-
-@pragma('vm:never-inline')
-bar(n) {
-  try {
-    return foo(n);
-  } catch (e) {}
-}
-
-main() {
-  for (var i = 0; i < 20; i++) {
-    bar(5);
-  }
-  bar("");
-}
diff --git a/tests/language_2/vm/create_array_instr_deopt_test.dart b/tests/language_2/vm/create_array_instr_deopt_test.dart
deleted file mode 100644
index c82c8019b82..00000000000
--- a/tests/language_2/vm/create_array_instr_deopt_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-@pragma('vm:never-inline')
-foo(n) {
-  try {
-    return new List.filled(n, null);
-  } catch (e) {}
-}
-
-main() {
-  for (var i = 0; i < 20; i++) {
-    foo(5);
-  }
-  foo("");
-}
diff --git a/tests/language_2/vm/deep_loop_test.dart b/tests/language_2/vm/deep_loop_test.dart
deleted file mode 100644
index 8c6b6bec13c..00000000000
--- a/tests/language_2/vm/deep_loop_test.dart
+++ /dev/null
@@ -1,365 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-// Stress tests on loop nesting depth. Make sure loop and induction
-// analysis do not break down (excessive compile-time or otherwise)
-// when analyzing a deeply nested loop with dependent bounds.
-
-@pragma("vm:never-inline")
-foo(List<int> a) {
-  for (int i0 = 100; i0 <= a.length - 101; i0++)
-    for (int i1 = i0 - 1; i1 <= i0 + 1; i1++)
-      for (int i2 = i1 - 1; i2 <= i1 + 1; i2++)
-        for (int i3 = i2 - 1; i3 <= i2 + 1; i3++)
-          for (int i4 = i3 - 1; i4 <= i3 + 1; i4++)
-            for (int i5 = i4 - 1; i5 <= i4 + 1; i5++)
-              for (int i6 = i5 - 1; i6 <= i5 + 1; i6++)
-                for (int i7 = i6 - 1; i7 <= i6 + 1; i7++)
-                  for (int i8 = i7 - 1; i8 <= i7 + 1; i8++)
-                    for (int i9 = i8 - 1; i9 <= i8 + 1; i9++)
-                      for (int i10 = i9 - 1; i10 <= i9 + 1; i10++)
-                        for (int i11 = i10 - 1; i11 <= i10 + 1; i11++)
-                          for (int i12 = i11 - 1; i12 <= i11 + 1; i12++)
-                            for (int i13 = i12 - 1; i13 <= i12 + 1; i13++)
-                              for (int i14 = i13 - 1; i14 <= i13 + 1; i14++)
-                                for (int i15 = i14 - 1; i15 <= i14 + 1; i15++)
-                                  for (int i16 = i15 - 1; i16 <= i15 + 1; i16++)
-                                    for (int i17 = i16 - 1;
-                                        i17 <= i16 + 1;
-                                        i17++)
-                                      for (int i18 = i17 - 1;
-                                          i18 <= i17 + 1;
-                                          i18++)
-                                        for (int i19 = i18 - 1;
-                                            i19 <= i18 + 1;
-                                            i19++)
-                                          for (int i20 = i19 - 1;
-                                              i20 <= i19 + 1;
-                                              i20++)
-                                            for (int i21 = i20 - 1;
-                                                i21 <= i20 + 1;
-                                                i21++)
-                                              for (int i22 = i21 - 1;
-                                                  i22 <= i21 + 1;
-                                                  i22++)
-                                                for (int i23 = i22 - 1;
-                                                    i23 <= i22 + 1;
-                                                    i23++)
-                                                  for (int i24 = i23 - 1;
-                                                      i24 <= i23 + 1;
-                                                      i24++)
-                                                    for (int i25 = i24 - 1;
-                                                        i25 <= i24 + 1;
-                                                        i25++)
-                                                      for (int i26 = i25 - 1;
-                                                          i26 <= i25 + 1;
-                                                          i26++)
-                                                        for (int i27 = i26 - 1;
-                                                            i27 <= i26 + 1;
-                                                            i27++)
-                                                          for (int i28 =
-                                                                  i27 - 1;
-                                                              i28 <= i27 + 1;
-                                                              i28++)
-                                                            for (int i29 =
-                                                                    i28 - 1;
-                                                                i29 <= i28 + 1;
-                                                                i29++)
-                                                              for (int i30 =
-                                                                      i29 - 1;
-                                                                  i30 <=
-                                                                      i29 + 1;
-                                                                  i30++)
-                                                                for (int i31 =
-                                                                        i30 - 1;
-                                                                    i31 <=
-                                                                        i30 + 1;
-                                                                    i31++)
-                                                                  for (int i32 =
-                                                                          i31 -
-                                                                              1;
-                                                                      i32 <=
-                                                                          i31 +
-                                                                              1;
-                                                                      i32++)
-                                                                    for (int i33 =
-                                                                            i32 -
-                                                                                1;
-                                                                        i33 <=
-                                                                            i32 +
-                                                                                1;
-                                                                        i33++)
-                                                                      for (int i34 = i33 -
-                                                                              1;
-                                                                          i34 <=
-                                                                              i33 + 1;
-                                                                          i34++)
-                                                                        for (int i35 = i34 -
-                                                                                1;
-                                                                            i35 <=
-                                                                                i34 + 1;
-                                                                            i35++)
-                                                                          for (int i36 = i35 - 1;
-                                                                              i36 <= i35 + 1;
-                                                                              i36++)
-                                                                            for (int i37 = i36 - 1;
-                                                                                i37 <= i36 + 1;
-                                                                                i37++)
-                                                                              for (int i38 = i37 - 1; i38 <= i37 + 1; i38++)
-                                                                                for (int i39 = i38 - 1; i39 <= i38 + 1; i39++)
-                                                                                  for (int i40 = i39 - 1; i40 <= i39 + 1; i40++)
-                                                                                    for (int i41 = i40 - 1; i41 <= i40 + 1; i41++)
-                                                                                      for (int i42 = i41 - 1; i42 <= i41 + 1; i42++)
-                                                                                        for (int i43 = i42 - 1; i43 <= i42 + 1; i43++)
-                                                                                          for (int i44 = i43 - 1; i44 <= i43 + 1; i44++)
-                                                                                            for (int i45 = i44 - 1; i45 <= i44 + 1; i45++)
-                                                                                              for (int i46 = i45 - 1; i46 <= i45 + 1; i46++)
-                                                                                                for (int i47 = i46 - 1; i47 <= i46 + 1; i47++)
-                                                                                                  for (int i48 = i47 - 1; i48 <= i47 + 1; i48++)
-                                                                                                    for (int i49 = i48 - 1; i49 <= i48 + 1; i49++)
-                                                                                                      for (int i50 = i49 - 1; i50 <= i49 + 1; i50++)
-                                                                                                        for (int i51 = i50 - 1; i51 <= i50 + 1; i51++)
-                                                                                                          for (int i52 = i51 - 1; i52 <= i51 + 1; i52++)
-                                                                                                            for (int i53 = i52 - 1; i53 <= i52 + 1; i53++)
-                                                                                                              for (int i54 = i53 - 1; i54 <= i53 + 1; i54++)
-                                                                                                                for (int i55 = i54 - 1; i55 <= i54 + 1; i55++)
-                                                                                                                  for (int i56 = i55 - 1; i56 <= i55 + 1; i56++)
-                                                                                                                    for (int i57 = i56 - 1; i57 <= i56 + 1; i57++)
-                                                                                                                      for (int i58 = i57 - 1; i58 <= i57 + 1; i58++)
-                                                                                                                        for (int i59 = i58 - 1; i59 <= i58 + 1; i59++)
-                                                                                                                          for (int i60 = i59 - 1; i60 <= i59 + 1; i60++)
-                                                                                                                            for (int i61 = i60 - 1; i61 <= i60 + 1; i61++)
-                                                                                                                              for (int i62 = i61 - 1; i62 <= i61 + 1; i62++)
-                                                                                                                                for (int i63 = i62 - 1; i63 <= i62 + 1; i63++)
-                                                                                                                                  for (int i64 = i63 - 1; i64 <= i63 + 1; i64++)
-                                                                                                                                    for (int i65 = i64 - 1; i65 <= i64 + 1; i65++)
-                                                                                                                                      for (int i66 = i65 - 1; i66 <= i65 + 1; i66++)
-                                                                                                                                        for (int i67 = i66 - 1; i67 <= i66 + 1; i67++)
-                                                                                                                                          for (int i68 = i67 - 1; i68 <= i67 + 1; i68++)
-                                                                                                                                            for (int i69 = i68 - 1; i69 <= i68 + 1; i69++)
-                                                                                                                                              for (int i70 = i69 - 1; i70 <= i69 + 1; i70++)
-                                                                                                                                                for (int i71 = i70 - 1; i71 <= i70 + 1; i71++)
-                                                                                                                                                  for (int i72 = i71 - 1; i72 <= i71 + 1; i72++)
-                                                                                                                                                    for (int i73 = i72 - 1; i73 <= i72 + 1; i73++)
-                                                                                                                                                      for (int i74 = i73 - 1; i74 <= i73 + 1; i74++)
-                                                                                                                                                        for (int i75 = i74 - 1; i75 <= i74 + 1; i75++)
-                                                                                                                                                          for (int i76 = i75 - 1; i76 <= i75 + 1; i76++)
-                                                                                                                                                            for (int i77 = i76 - 1; i77 <= i76 + 1; i77++)
-                                                                                                                                                              for (int i78 = i77 - 1; i78 <= i77 + 1; i78++)
-                                                                                                                                                                for (int i79 = i78 - 1; i79 <= i78 + 1; i79++)
-                                                                                                                                                                  for (int i80 = i79 - 1; i80 <= i79 + 1; i80++)
-                                                                                                                                                                    for (int i81 = i80 - 1; i81 <= i80 + 1; i81++)
-                                                                                                                                                                      for (int i82 = i81 - 1; i82 <= i81 + 1; i82++)
-                                                                                                                                                                        for (int i83 = i82 - 1; i83 <= i82 + 1; i83++)
-                                                                                                                                                                          for (int i84 = i83 - 1; i84 <= i83 + 1; i84++)
-                                                                                                                                                                            for (int i85 = i84 - 1; i85 <= i84 + 1; i85++)
-                                                                                                                                                                              for (int i86 = i85 - 1; i86 <= i85 + 1; i86++)
-                                                                                                                                                                                for (int i87 = i86 - 1; i87 <= i86 + 1; i87++)
-                                                                                                                                                                                  for (int i88 = i87 - 1; i88 <= i87 + 1; i88++)
-                                                                                                                                                                                    for (int i89 = i88 - 1; i89 <= i88 + 1; i89++)
-                                                                                                                                                                                      for (int i90 = i89 - 1; i90 <= i89 + 1; i90++)
-                                                                                                                                                                                        for (int i91 = i90 - 1; i91 <= i90 + 1; i91++)
-                                                                                                                                                                                          for (int i92 = i91 - 1; i92 <= i91 + 1; i92++)
-                                                                                                                                                                                            for (int i93 = i92 - 1; i93 <= i92 + 1; i93++)
-                                                                                                                                                                                              for (int i94 = i93 - 1; i94 <= i93 + 1; i94++)
-                                                                                                                                                                                                for (int i95 = i94 - 1; i95 <= i94 + 1; i95++)
-                                                                                                                                                                                                  for (int i96 = i95 - 1; i96 <= i95 + 1; i96++)
-                                                                                                                                                                                                    for (int i97 = i96 - 1; i97 <= i96 + 1; i97++)
-                                                                                                                                                                                                      for (int i98 = i97 - 1; i98 <= i97 + 1; i98++)
-                                                                                                                                                                                                        for (int i99 = i98 - 1; i99 <= i98 + 1; i99++)
-                                                                                                                                                                                                          for (int i100 = i99 - 1; i100 <= i99 + 1; i100++) {
-                                                                                                                                                                                                            // Range [0,a.length).
-                                                                                                                                                                                                            a[i100] += 1;
-                                                                                                                                                                                                          }
-}
-
-@pragma("vm:never-inline")
-bar(List<int> a) {
-  for (int i0 = a.length - 101; i0 >= 100; i0--)
-    for (int i1 = i0 + 1; i1 >= i0 - 1; i1--)
-      for (int i2 = i1 + 1; i2 >= i1 - 1; i2--)
-        for (int i3 = i2 + 1; i3 >= i2 - 1; i3--)
-          for (int i4 = i3 + 1; i4 >= i3 - 1; i4--)
-            for (int i5 = i4 + 1; i5 >= i4 - 1; i5--)
-              for (int i6 = i5 + 1; i6 >= i5 - 1; i6--)
-                for (int i7 = i6 + 1; i7 >= i6 - 1; i7--)
-                  for (int i8 = i7 + 1; i8 >= i7 - 1; i8--)
-                    for (int i9 = i8 + 1; i9 >= i8 - 1; i9--)
-                      for (int i10 = i9 + 1; i10 >= i9 - 1; i10--)
-                        for (int i11 = i10 + 1; i11 >= i10 - 1; i11--)
-                          for (int i12 = i11 + 1; i12 >= i11 - 1; i12--)
-                            for (int i13 = i12 + 1; i13 >= i12 - 1; i13--)
-                              for (int i14 = i13 + 1; i14 >= i13 - 1; i14--)
-                                for (int i15 = i14 + 1; i15 >= i14 - 1; i15--)
-                                  for (int i16 = i15 + 1; i16 >= i15 - 1; i16--)
-                                    for (int i17 = i16 + 1;
-                                        i17 >= i16 - 1;
-                                        i17--)
-                                      for (int i18 = i17 + 1;
-                                          i18 >= i17 - 1;
-                                          i18--)
-                                        for (int i19 = i18 + 1;
-                                            i19 >= i18 - 1;
-                                            i19--)
-                                          for (int i20 = i19 + 1;
-                                              i20 >= i19 - 1;
-                                              i20--)
-                                            for (int i21 = i20 + 1;
-                                                i21 >= i20 - 1;
-                                                i21--)
-                                              for (int i22 = i21 + 1;
-                                                  i22 >= i21 - 1;
-                                                  i22--)
-                                                for (int i23 = i22 + 1;
-                                                    i23 >= i22 - 1;
-                                                    i23--)
-                                                  for (int i24 = i23 + 1;
-                                                      i24 >= i23 - 1;
-                                                      i24--)
-                                                    for (int i25 = i24 + 1;
-                                                        i25 >= i24 - 1;
-                                                        i25--)
-                                                      for (int i26 = i25 + 1;
-                                                          i26 >= i25 - 1;
-                                                          i26--)
-                                                        for (int i27 = i26 + 1;
-                                                            i27 >= i26 - 1;
-                                                            i27--)
-                                                          for (int i28 =
-                                                                  i27 + 1;
-                                                              i28 >= i27 - 1;
-                                                              i28--)
-                                                            for (int i29 =
-                                                                    i28 + 1;
-                                                                i29 >= i28 - 1;
-                                                                i29--)
-                                                              for (int i30 =
-                                                                      i29 + 1;
-                                                                  i30 >=
-                                                                      i29 - 1;
-                                                                  i30--)
-                                                                for (int i31 =
-                                                                        i30 + 1;
-                                                                    i31 >=
-                                                                        i30 - 1;
-                                                                    i31--)
-                                                                  for (int i32 =
-                                                                          i31 +
-                                                                              1;
-                                                                      i32 >=
-                                                                          i31 -
-                                                                              1;
-                                                                      i32--)
-                                                                    for (int i33 =
-                                                                            i32 +
-                                                                                1;
-                                                                        i33 >=
-                                                                            i32 -
-                                                                                1;
-                                                                        i33--)
-                                                                      for (int i34 = i33 +
-                                                                              1;
-                                                                          i34 >=
-                                                                              i33 - 1;
-                                                                          i34--)
-                                                                        for (int i35 = i34 +
-                                                                                1;
-                                                                            i35 >=
-                                                                                i34 - 1;
-                                                                            i35--)
-                                                                          for (int i36 = i35 + 1;
-                                                                              i36 >= i35 - 1;
-                                                                              i36--)
-                                                                            for (int i37 = i36 + 1;
-                                                                                i37 >= i36 - 1;
-                                                                                i37--)
-                                                                              for (int i38 = i37 + 1; i38 >= i37 - 1; i38--)
-                                                                                for (int i39 = i38 + 1; i39 >= i38 - 1; i39--)
-                                                                                  for (int i40 = i39 + 1; i40 >= i39 - 1; i40--)
-                                                                                    for (int i41 = i40 + 1; i41 >= i40 - 1; i41--)
-                                                                                      for (int i42 = i41 + 1; i42 >= i41 - 1; i42--)
-                                                                                        for (int i43 = i42 + 1; i43 >= i42 - 1; i43--)
-                                                                                          for (int i44 = i43 + 1; i44 >= i43 - 1; i44--)
-                                                                                            for (int i45 = i44 + 1; i45 >= i44 - 1; i45--)
-                                                                                              for (int i46 = i45 + 1; i46 >= i45 - 1; i46--)
-                                                                                                for (int i47 = i46 + 1; i47 >= i46 - 1; i47--)
-                                                                                                  for (int i48 = i47 + 1; i48 >= i47 - 1; i48--)
-                                                                                                    for (int i49 = i48 + 1; i49 >= i48 - 1; i49--)
-                                                                                                      for (int i50 = i49 + 1; i50 >= i49 - 1; i50--)
-                                                                                                        for (int i51 = i50 + 1; i51 >= i50 - 1; i51--)
-                                                                                                          for (int i52 = i51 + 1; i52 >= i51 - 1; i52--)
-                                                                                                            for (int i53 = i52 + 1; i53 >= i52 - 1; i53--)
-                                                                                                              for (int i54 = i53 + 1; i54 >= i53 - 1; i54--)
-                                                                                                                for (int i55 = i54 + 1; i55 >= i54 - 1; i55--)
-                                                                                                                  for (int i56 = i55 + 1; i56 >= i55 - 1; i56--)
-                                                                                                                    for (int i57 = i56 + 1; i57 >= i56 - 1; i57--)
-                                                                                                                      for (int i58 = i57 + 1; i58 >= i57 - 1; i58--)
-                                                                                                                        for (int i59 = i58 + 1; i59 >= i58 - 1; i59--)
-                                                                                                                          for (int i60 = i59 + 1; i60 >= i59 - 1; i60--)
-                                                                                                                            for (int i61 = i60 + 1; i61 >= i60 - 1; i61--)
-                                                                                                                              for (int i62 = i61 + 1; i62 >= i61 - 1; i62--)
-                                                                                                                                for (int i63 = i62 + 1; i63 >= i62 - 1; i63--)
-                                                                                                                                  for (int i64 = i63 + 1; i64 >= i63 - 1; i64--)
-                                                                                                                                    for (int i65 = i64 + 1; i65 >= i64 - 1; i65--)
-                                                                                                                                      for (int i66 = i65 + 1; i66 >= i65 - 1; i66--)
-                                                                                                                                        for (int i67 = i66 + 1; i67 >= i66 - 1; i67--)
-                                                                                                                                          for (int i68 = i67 + 1; i68 >= i67 - 1; i68--)
-                                                                                                                                            for (int i69 = i68 + 1; i69 >= i68 - 1; i69--)
-                                                                                                                                              for (int i70 = i69 + 1; i70 >= i69 - 1; i70--)
-                                                                                                                                                for (int i71 = i70 + 1; i71 >= i70 - 1; i71--)
-                                                                                                                                                  for (int i72 = i71 + 1; i72 >= i71 - 1; i72--)
-                                                                                                                                                    for (int i73 = i72 + 1; i73 >= i72 - 1; i73--)
-                                                                                                                                                      for (int i74 = i73 + 1; i74 >= i73 - 1; i74--)
-                                                                                                                                                        for (int i75 = i74 + 1; i75 >= i74 - 1; i75--)
-                                                                                                                                                          for (int i76 = i75 + 1; i76 >= i75 - 1; i76--)
-                                                                                                                                                            for (int i77 = i76 + 1; i77 >= i76 - 1; i77--)
-                                                                                                                                                              for (int i78 = i77 + 1; i78 >= i77 - 1; i78--)
-                                                                                                                                                                for (int i79 = i78 + 1; i79 >= i78 - 1; i79--)
-                                                                                                                                                                  for (int i80 = i79 + 1; i80 >= i79 - 1; i80--)
-                                                                                                                                                                    for (int i81 = i80 + 1; i81 >= i80 - 1; i81--)
-                                                                                                                                                                      for (int i82 = i81 + 1; i82 >= i81 - 1; i82--)
-                                                                                                                                                                        for (int i83 = i82 + 1; i83 >= i82 - 1; i83--)
-                                                                                                                                                                          for (int i84 = i83 + 1; i84 >= i83 - 1; i84--)
-                                                                                                                                                                            for (int i85 = i84 + 1; i85 >= i84 - 1; i85--)
-                                                                                                                                                                              for (int i86 = i85 + 1; i86 >= i85 - 1; i86--)
-                                                                                                                                                                                for (int i87 = i86 + 1; i87 >= i86 - 1; i87--)
-                                                                                                                                                                                  for (int i88 = i87 + 1; i88 >= i87 - 1; i88--)
-                                                                                                                                                                                    for (int i89 = i88 + 1; i89 >= i88 - 1; i89--)
-                                                                                                                                                                                      for (int i90 = i89 + 1; i90 >= i89 - 1; i90--)
-                                                                                                                                                                                        for (int i91 = i90 + 1; i91 >= i90 - 1; i91--)
-                                                                                                                                                                                          for (int i92 = i91 + 1; i92 >= i91 - 1; i92--)
-                                                                                                                                                                                            for (int i93 = i92 + 1; i93 >= i92 - 1; i93--)
-                                                                                                                                                                                              for (int i94 = i93 + 1; i94 >= i93 - 1; i94--)
-                                                                                                                                                                                                for (int i95 = i94 + 1; i95 >= i94 - 1; i95--)
-                                                                                                                                                                                                  for (int i96 = i95 + 1; i96 >= i95 - 1; i96--)
-                                                                                                                                                                                                    for (int i97 = i96 + 1; i97 >= i96 - 1; i97--)
-                                                                                                                                                                                                      for (int i98 = i97 + 1; i98 >= i97 - 1; i98--)
-                                                                                                                                                                                                        for (int i99 = i98 + 1; i99 >= i98 - 1; i99--)
-                                                                                                                                                                                                          for (int i100 = i99 + 1; i100 >= i99 - 1; i100--) {
-                                                                                                                                                                                                            // Range [0,a.length).
-                                                                                                                                                                                                            a[i100] += 1;
-                                                                                                                                                                                                          }
-}
-
-main() {
-  // To avoid executing the deep loops completely, we pass in a list
-  // with null values, so that each first iteration throws an exception.
-  List<int> a = new List<int>.filled(300, null);
-  int tryCallingPlusOnNull = 0;
-  try {
-    foo(a);
-  } on NoSuchMethodError catch (e) {
-    ++tryCallingPlusOnNull;
-  }
-  try {
-    bar(a);
-  } on NoSuchMethodError catch (e) {
-    ++tryCallingPlusOnNull;
-  }
-  Expect.equals(2, tryCallingPlusOnNull);
-}
diff --git a/tests/language_2/vm/deopt_hoisted_smi_check_vm_test.dart b/tests/language_2/vm/deopt_hoisted_smi_check_vm_test.dart
deleted file mode 100644
index 00454bc9d7e..00000000000
--- a/tests/language_2/vm/deopt_hoisted_smi_check_vm_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test deoptimization on an optimistically hoisted smi check.
-// VMOptions=--optimization-counter-threshold=10  --no-background-compilation
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-sum(a, b) {
-  var sum = 0;
-  for (var j = 1; j < 10; j++) {
-    for (var i = a; i < b; i++) {
-      sum++;
-    }
-  }
-  return sum;
-}
-
-mask(x) {
-  for (var i = 0; i < 10; i++) {
-    if (i == 1) {
-      return x;
-    }
-    x = x & 0xFF;
-  }
-}
-
-main() {
-  for (var i = 0; i < 20; i++) {
-    Expect.equals(9, sum(1, 2));
-    Expect.equals(0xAB, mask(0xAB));
-  }
-  Expect.equals(9, sum(1.0, 2.0)); // Passing double causes deoptimization.
-  Expect.equals(0xAB, mask(0x1000000AB));
-}
diff --git a/tests/language_2/vm/deopt_smi_check_vm_test.dart b/tests/language_2/vm/deopt_smi_check_vm_test.dart
deleted file mode 100644
index 9642b458ef7..00000000000
--- a/tests/language_2/vm/deopt_smi_check_vm_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test deoptimization on a smi check.
-// VMOptions=--optimization-counter-threshold=10  --no-background-compilation
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-hc(a) {
-  var r = a.hashCode;
-  return r;
-}
-
-main() {
-  for (var i = 0; i < 20; i++) {
-    Expect.equals((1).hashCode, hc(1));
-  }
-  // Passing double causes deoptimization.
-  Expect.equals((1.0).hashCode, hc(1.0));
-}
diff --git a/tests/language_2/vm/div_mod_test.dart b/tests/language_2/vm/div_mod_test.dart
deleted file mode 100755
index 47d3b0b9f07..00000000000
--- a/tests/language_2/vm/div_mod_test.dart
+++ /dev/null
@@ -1,303 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--deterministic
-// VMOptions=--deterministic --use_slow_path
-
-// Unit tests on DIV and MOV operations by various constants.
-
-import "package:expect/expect.dart";
-
-int kMin = 0x8000000000000000;
-int kMax = 0x7fffffffffffffff;
-
-// The basic DIV operation.
-int divme(int x, int c) {
-  return x ~/ c;
-}
-
-// The basic MOD operation.
-int modme(int x, int c) {
-  return x % c;
-}
-
-//
-// Test several "hidden" DIV constants.
-//
-
-@pragma("vm:never-inline")
-int div0(int x) {
-  return divme(x, 0);
-}
-
-@pragma("vm:never-inline")
-int div1(int x) {
-  return divme(x, 1);
-}
-
-@pragma("vm:never-inline")
-int divm1(int x) {
-  return divme(x, -1);
-}
-
-@pragma("vm:never-inline")
-int div2(int x) {
-  return divme(x, 2);
-}
-
-@pragma("vm:never-inline")
-int divm2(int x) {
-  return divme(x, -2);
-}
-
-@pragma("vm:never-inline")
-int div37(int x) {
-  return divme(x, 37);
-}
-
-@pragma("vm:never-inline")
-int div131(int x) {
-  return divme(x, 131);
-}
-
-@pragma("vm:never-inline")
-int divm333(int x) {
-  return divme(x, -333);
-}
-
-@pragma("vm:never-inline")
-int divmin(int x) {
-  return divme(x, kMin);
-}
-
-@pragma("vm:never-inline")
-int divmax(int x) {
-  return divme(x, kMax);
-}
-
-//
-// Test several "hidden" MOD constants.
-//
-
-@pragma("vm:never-inline")
-int mod0(int x) {
-  return modme(x, 0);
-}
-
-@pragma("vm:never-inline")
-int mod1(int x) {
-  return modme(x, 1);
-}
-
-@pragma("vm:never-inline")
-int modm1(int x) {
-  return modme(x, -1);
-}
-
-@pragma("vm:never-inline")
-int mod2(int x) {
-  return modme(x, 2);
-}
-
-@pragma("vm:never-inline")
-int modm2(int x) {
-  return modme(x, -2);
-}
-
-@pragma("vm:never-inline")
-int mod37(int x) {
-  return modme(x, 37);
-}
-
-@pragma("vm:never-inline")
-int mod131(int x) {
-  return modme(x, 131);
-}
-
-@pragma("vm:never-inline")
-int modm333(int x) {
-  return modme(x, -333);
-}
-
-@pragma("vm:never-inline")
-int modmin(int x) {
-  return modme(x, kMin);
-}
-
-@pragma("vm:never-inline")
-int modmax(int x) {
-  return modme(x, kMax);
-}
-
-main() {
-  // Exceptional case DIV.
-  for (int i = -1; i <= 1; i++) {
-    bool threw = false;
-    try {
-      div0(i);
-    } on UnsupportedError catch (e) {
-      threw = true;
-    }
-    Expect.isTrue(threw);
-  }
-
-  // Exceptional case MOD.
-  for (int i = -1; i <= 1; i++) {
-    bool threw = false;
-    try {
-      mod0(i);
-    } on UnsupportedError catch (e) {
-      threw = true;
-    }
-    Expect.isTrue(threw);
-  }
-
-  // DIV by +/- 1.
-  Expect.equals(kMin, div1(kMin));
-  Expect.equals(kMin, divm1(kMin));
-  for (int i = -999; i <= 999; i++) {
-    Expect.equals(i, div1(i));
-    Expect.equals(-i, divm1(i));
-  }
-  Expect.equals(kMax, div1(kMax));
-  Expect.equals(-kMax, divm1(kMax));
-
-  // MOD by +/- 1.
-  Expect.equals(0, mod1(kMin));
-  Expect.equals(0, modm1(kMin));
-  for (int i = -999; i <= 999; i++) {
-    Expect.equals(0, mod1(i));
-    Expect.equals(0, modm1(i));
-  }
-  Expect.equals(0, mod1(kMax));
-  Expect.equals(0, modm1(kMax));
-
-  // DIV by +/- 2.
-  Expect.equals(-4611686018427387904, div2(kMin));
-  Expect.equals(-4611686018427387903, div2(kMin + 1));
-  Expect.equals(-4611686018427387903, div2(kMin + 2));
-  Expect.equals(4611686018427387904, divm2(kMin));
-  Expect.equals(4611686018427387903, divm2(kMin + 1));
-  Expect.equals(4611686018427387903, divm2(kMin + 2));
-  for (int i = -999; i <= 999; i++) {
-    int e = (i + ((i < 0) ? 1 : 0)) >> 1;
-    Expect.equals(e, div2(i));
-    Expect.equals(-e, divm2(i));
-  }
-  Expect.equals(4611686018427387903, div2(kMax));
-  Expect.equals(4611686018427387903, div2(kMax - 1));
-  Expect.equals(4611686018427387902, div2(kMax - 2));
-  Expect.equals(-4611686018427387903, divm2(kMax));
-  Expect.equals(-4611686018427387903, divm2(kMax - 1));
-  Expect.equals(-4611686018427387902, divm2(kMax - 2));
-
-  // MOD by +/- 2.
-  Expect.equals(0, mod2(kMin));
-  Expect.equals(1, mod2(kMin + 1));
-  Expect.equals(0, mod2(kMin + 2));
-  Expect.equals(0, modm2(kMin));
-  Expect.equals(1, modm2(kMin + 1));
-  Expect.equals(0, modm2(kMin + 2));
-  for (int i = -999; i <= 999; i++) {
-    Expect.equals(i & 1, mod2(i));
-    Expect.equals(i & 1, modm2(i));
-  }
-  Expect.equals(1, mod2(kMax));
-  Expect.equals(0, mod2(kMax - 1));
-  Expect.equals(1, mod2(kMax - 2));
-  Expect.equals(1, modm2(kMax));
-  Expect.equals(0, modm2(kMax - 1));
-  Expect.equals(1, modm2(kMax - 2));
-
-  // DIV/MOD by 37.
-  Expect.equals(-249280325320399346, div37(kMin));
-  Expect.equals(31, mod37(kMin));
-  for (int i = -999; i <= 999; i++) {
-    Expect.equals(i, div37(37 * i));
-    Expect.equals(i, div37(37 * i + ((i >= 0) ? 36 : -36)));
-    Expect.equals(0, mod37(37 * i));
-    Expect.equals(1, mod37(37 * i + 1));
-    Expect.equals(36, mod37(37 * i + 36));
-  }
-  for (int i = 1; i < 37; i++) {
-    Expect.equals(0, div37(i));
-    Expect.equals(i, mod37(i));
-    Expect.equals(0, div37(-i));
-    Expect.equals(37 - i, mod37(-i));
-  }
-  Expect.equals(249280325320399346, div37(kMax));
-  Expect.equals(5, mod37(kMax));
-
-  // DIV/MOD by 131.
-  Expect.equals(-70407420128662410, div131(kMin));
-  Expect.equals(33, mod131(kMin));
-  for (int i = -999; i <= 999; i++) {
-    Expect.equals(i, div131(131 * i));
-    Expect.equals(i, div131(131 * i + ((i >= 0) ? 130 : -130)));
-    Expect.equals(0, mod131(131 * i));
-    Expect.equals(1, mod131(131 * i + 1));
-    Expect.equals(130, mod131(131 * i + 130));
-  }
-  for (int i = 1; i < 131; i++) {
-    Expect.equals(0, div131(i));
-    Expect.equals(i, mod131(i));
-    Expect.equals(0, div131(-i));
-    Expect.equals(131 - i, mod131(-i));
-  }
-  Expect.equals(70407420128662410, div131(kMax));
-  Expect.equals(97, mod131(kMax));
-
-  // DIV/MOD by -333.
-  Expect.equals(27697813924488816, divm333(kMin));
-  Expect.equals(253, modm333(kMin));
-  for (int i = -999; i <= 999; i++) {
-    Expect.equals(i, divm333(-333 * i));
-    Expect.equals(i, divm333(-333 * i + ((i < 0) ? 130 : -130)));
-    Expect.equals(0, modm333(-333 * i));
-    Expect.equals(1, modm333(-333 * i + 1));
-    Expect.equals(130, modm333(-333 * i + 130));
-  }
-  Expect.equals(-27697813924488816, divm333(kMax));
-  Expect.equals(79, modm333(kMax));
-
-  // DIV/MOD by Min.
-  Expect.equals(1, divmin(kMin));
-  Expect.equals(0, modmin(kMin));
-  for (int i = -999; i <= 999; i++) {
-    Expect.equals(0, divmin(i));
-    Expect.equals(i >= 0 ? i : 1 + kMax + i, modmin(i));
-  }
-  Expect.equals(0, divmin(kMax));
-  Expect.equals(kMax, modmin(kMax));
-
-  // DIV/MOD by Max.
-  Expect.equals(-1, divmax(kMin));
-  Expect.equals(kMax - 1, modmax(kMin));
-  for (int i = -999; i <= 999; i++) {
-    Expect.equals(0, divmax(i));
-    Expect.equals(i >= 0 ? i : kMax + i, modmax(i));
-  }
-  Expect.equals(1, divmax(kMax));
-  Expect.equals(0, modmax(kMax));
-
-  // Exceptional null value MOD.
-  bool threwDiv = false;
-  try {
-    div2(null);
-  } on NoSuchMethodError catch (e) {
-    threwDiv = true;
-  }
-  Expect.isTrue(threwDiv);
-
-  // Exceptional null value MOD.
-  bool threwMod = false;
-  try {
-    mod2(null);
-  } on NoSuchMethodError catch (e) {
-    threwMod = true;
-  }
-  Expect.isTrue(threwMod);
-}
diff --git a/tests/language_2/vm/exactness/future_or_regression_34238_test.dart b/tests/language_2/vm/exactness/future_or_regression_34238_test.dart
deleted file mode 100644
index 9c73911bb9c..00000000000
--- a/tests/language_2/vm/exactness/future_or_regression_34238_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-
-// @dart = 2.9
-import 'dart:async';
-
-class A {
-  FutureOr<int> x;
-}
-
-Future<int> foo() async => 42;
-
-main() {
-  var a = new A();
-  a.x = 33;
-  a.x = null;
-  a.x = foo();
-}
diff --git a/tests/language_2/vm/function_equality_vm_test.dart b/tests/language_2/vm/function_equality_vm_test.dart
deleted file mode 100644
index 961bff55ea1..00000000000
--- a/tests/language_2/vm/function_equality_vm_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test function equality with null.
-
-import "package:expect/expect.dart";
-
-class A {
-  foo() {}
-}
-
-main() {
-  var a = new A();
-  var f = a.foo;
-  Expect.isFalse(f == null);
-  Expect.isFalse(null == f);
-}
diff --git a/tests/language_2/vm/if_conversion_vm_test.dart b/tests/language_2/vm/if_conversion_vm_test.dart
deleted file mode 100644
index c86aeea5154..00000000000
--- a/tests/language_2/vm/if_conversion_vm_test.dart
+++ /dev/null
@@ -1,154 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test if-conversion pass in the optimizing compiler.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-import "package:expect/expect.dart";
-
-f1(i) => (i == 0) ? 0 : 1;
-f2(i) => (i == 0) ? 2 : 3;
-f3(i) => (i == null) ? 0 : 1;
-f4(i) => (i == null) ? 2 : 3;
-
-f5(i) => (i != 0) ? 0 : 1;
-f6(i) => (i != 0) ? 2 : 3;
-f7(i) => (i != null) ? 0 : 1;
-f8(i) => (i != null) ? 2 : 3;
-
-f9(i) => identical(i, 0) ? 0 : 1;
-f10(i) => identical(i, 0) ? 2 : 3;
-f11(i) => identical(i, null) ? 0 : 1;
-f12(i) => identical(i, null) ? 2 : 3;
-
-f13(i) => !identical(i, 0) ? 0 : 1;
-f14(i) => !identical(i, 0) ? 2 : 3;
-f15(i) => !identical(i, null) ? 0 : 1;
-f16(i) => !identical(i, null) ? 2 : 3;
-
-const POWER_OF_2 = 0x1000000000;
-
-bigPower(i) => (i == 11) ? 0 : POWER_OF_2;
-
-cse(i) {
-  final a = i == 0 ? 0 : 1;
-  final b = i == 0 ? 2 : 3;
-  return a + b;
-}
-
-f17(b) => b ? 0 : 11;
-f18(b) => b ? 2 : 0;
-
-f19(i) => i == 0 ? 0 : 0;
-
-f20(i) => i > 0 ? 0 : 1;
-f21(i) => i > 0 ? 2 : 3;
-f22(i) => i & 1 == 0 ? 0 : 1;
-f23(i) => i & 1 != 0 ? 1 : 0;
-
-f24(i) => i >= 0 ? 0 : 1;
-f25(i) => i < 0 ? 0 : 1;
-f26(i) => i <= 0 ? 0 : 1;
-
-main() {
-  for (var i = 0; i < 20; i++) {
-    f1(i);
-    f2(i);
-    f3(i);
-    f4(i);
-    f5(i);
-    f6(i);
-    f7(i);
-    f8(i);
-    f9(i);
-    f10(i);
-    f11(i);
-    f12(i);
-    f13(i);
-    f14(i);
-    f15(i);
-    f16(i);
-    cse(i);
-    bigPower(i);
-    f17(true);
-    f18(true);
-    f19(i);
-    f20(i);
-    f21(i);
-    f22(i);
-    f23(i);
-    f24(i);
-    f25(i);
-    f26(i);
-  }
-
-  Expect.equals(0, f1(0));
-  Expect.equals(1, f1(44));
-  Expect.equals(2, f2(0));
-  Expect.equals(3, f2(44));
-  Expect.equals(0, f3(null));
-  Expect.equals(1, f3(44));
-  Expect.equals(2, f4(null));
-  Expect.equals(3, f4(44));
-
-  Expect.equals(1, f5(0));
-  Expect.equals(0, f5(44));
-  Expect.equals(3, f6(0));
-  Expect.equals(2, f6(44));
-  Expect.equals(1, f7(null));
-  Expect.equals(0, f7(44));
-  Expect.equals(3, f8(null));
-  Expect.equals(2, f8(44));
-
-  Expect.equals(0, f9(0));
-  Expect.equals(1, f9(44));
-  Expect.equals(2, f10(0));
-  Expect.equals(3, f10(44));
-  Expect.equals(0, f11(null));
-  Expect.equals(1, f11(44));
-  Expect.equals(2, f12(null));
-  Expect.equals(3, f12(44));
-
-  Expect.equals(1, f13(0));
-  Expect.equals(0, f13(44));
-  Expect.equals(3, f14(0));
-  Expect.equals(2, f14(44));
-  Expect.equals(1, f15(null));
-  Expect.equals(0, f15(44));
-  Expect.equals(3, f16(null));
-  Expect.equals(2, f16(44));
-
-  Expect.equals(0, bigPower(11));
-  Expect.equals(POWER_OF_2, bigPower(12));
-
-  Expect.equals(2, cse(0));
-  Expect.equals(4, cse(1));
-
-  Expect.equals(11, f17(false));
-  Expect.equals(0, f17(true));
-
-  Expect.equals(0, f18(false));
-  Expect.equals(2, f18(true));
-
-  Expect.equals(0, f19(0));
-  Expect.equals(0, f19(1));
-
-  Expect.equals(0, f20(123));
-  Expect.equals(2, f21(123));
-  Expect.equals(0, f22(122));
-  Expect.equals(1, f22(123));
-  Expect.equals(0, f23(122));
-  Expect.equals(1, f23(123));
-
-  Expect.equals(0, f24(0));
-  Expect.equals(1, f24(-1));
-
-  Expect.equals(0, f25(-1));
-  Expect.equals(1, f25(0));
-
-  Expect.equals(0, f26(0));
-  Expect.equals(1, f26(1));
-}
diff --git a/tests/language_2/vm/inline_heuristic_test.dart b/tests/language_2/vm/inline_heuristic_test.dart
deleted file mode 100755
index 5f9bb7cbd0f..00000000000
--- a/tests/language_2/vm/inline_heuristic_test.dart
+++ /dev/null
@@ -1,303 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--deterministic --optimization_counter_threshold=10
-
-// Test on specialized vs non-specialized inlining.
-
-import 'dart:core';
-import "package:expect/expect.dart";
-
-// To inline or not to inline, that is the question?
-int foo(int k) {
-  switch (k) {
-    case 0:
-      return 1;
-    case 1:
-      return 2;
-    case 2:
-      return 3;
-    case 3:
-      return 4;
-    case 4:
-      return 5;
-    case 5:
-      return 6;
-    case 6:
-      return 7;
-    case 7:
-      return 8;
-    case 8:
-      return 9;
-    case 9:
-      return 10;
-    case 10:
-      return 11;
-    case 11:
-      return 12;
-    case 12:
-      return 13;
-    case 13:
-      return 14;
-    case 14:
-      return 15;
-    case 15:
-      return 16;
-    case 16:
-      return 17;
-    case 17:
-      return 18;
-    case 18:
-      return 19;
-    case 19:
-      return 20;
-    case 20:
-      return 21;
-    case 21:
-      return 22;
-    case 22:
-      return 23;
-    case 23:
-      return 24;
-    case 24:
-      return 25;
-    case 25:
-      return 26;
-    case 26:
-      return 27;
-    case 27:
-      return 28;
-    case 28:
-      return 29;
-    case 29:
-      return 30;
-    case 30:
-      return 31;
-    case 31:
-      return 32;
-    case 32:
-      return 33;
-    case 33:
-      return 34;
-    case 34:
-      return 35;
-    case 35:
-      return 36;
-    case 36:
-      return 37;
-    case 37:
-      return 38;
-    case 38:
-      return 39;
-    case 39:
-      return 40;
-    case 40:
-      return 41;
-    case 41:
-      return 42;
-    case 42:
-      return 43;
-    case 43:
-      return 44;
-    case 44:
-      return 45;
-    case 45:
-      return 46;
-    case 46:
-      return 47;
-    case 47:
-      return 48;
-    case 48:
-      return 49;
-    case 49:
-      return 50;
-    case 50:
-      return 51;
-    case 51:
-      return 52;
-    case 52:
-      return 53;
-    case 53:
-      return 54;
-    case 54:
-      return 55;
-    case 55:
-      return 56;
-    case 56:
-      return 57;
-    case 57:
-      return 58;
-    case 58:
-      return 59;
-    case 59:
-      return 60;
-    case 60:
-      return 61;
-    case 61:
-      return 62;
-    case 62:
-      return 63;
-    case 63:
-      return 64;
-    case 64:
-      return 65;
-    case 65:
-      return 66;
-    case 66:
-      return 67;
-    case 67:
-      return 68;
-    case 68:
-      return 69;
-    case 69:
-      return 70;
-    case 70:
-      return 71;
-    case 71:
-      return 72;
-    case 72:
-      return 73;
-    case 73:
-      return 74;
-    case 74:
-      return 75;
-    case 75:
-      return 76;
-    case 76:
-      return 77;
-    case 77:
-      return 78;
-    case 78:
-      return 79;
-    case 79:
-      return 80;
-    case 80:
-      return 81;
-    case 81:
-      return 82;
-    case 82:
-      return 83;
-    case 83:
-      return 84;
-    case 84:
-      return 85;
-    case 85:
-      return 86;
-    case 86:
-      return 87;
-    case 87:
-      return 88;
-    case 88:
-      return 89;
-    case 89:
-      return 90;
-    case 90:
-      return 91;
-    case 91:
-      return 92;
-    case 92:
-      return 93;
-    case 93:
-      return 94;
-    case 94:
-      return 95;
-    case 95:
-      return 96;
-    case 96:
-      return 97;
-    case 97:
-      return 98;
-    case 98:
-      return 99;
-    case 99:
-      return 100;
-    case 100:
-      return 101;
-    case 101:
-      return 102;
-    case 102:
-      return 103;
-    case 103:
-      return 104;
-    case 104:
-      return 105;
-    case 105:
-      return 106;
-    case 106:
-      return 107;
-    case 107:
-      return 108;
-    case 108:
-      return 109;
-    case 109:
-      return 110;
-    case 110:
-      return 111;
-    case 111:
-      return 112;
-    case 112:
-      return 113;
-    case 113:
-      return 114;
-    case 114:
-      return 115;
-    case 115:
-      return 116;
-    case 116:
-      return 117;
-    case 117:
-      return 118;
-    case 118:
-      return 119;
-    case 119:
-      return 120;
-    case 120:
-      return 121;
-    case 121:
-      return 122;
-    case 122:
-      return 123;
-    case 123:
-      return 124;
-    case 124:
-      return 125;
-    case 125:
-      return 126;
-    case 126:
-      return 127;
-    case 127:
-      return 128;
-    default:
-      return -1;
-  }
-}
-
-@pragma('vm:never-inline')
-int bar() {
-  // Here we should inline! The inlined size is very small
-  // after specialization for the constant arguments.
-  return foo(1) + foo(12);
-}
-
-@pragma('vm:never-inline')
-int baz(int i) {
-  // Here we should not inline! The inlined size is too large,
-  // just keep the original method. In fact, we can use the cached
-  // estimate of foo()'s size from the previous compilation at this
-  // point, which enables the "early" bail heuristic!
-  return foo(i);
-}
-
-main() {
-  // Repeat tests to enter JIT (when applicable).
-  for (int i = 0; i < 20; i++) {
-    Expect.equals(15, bar());
-    for (int i = -150; i <= 150; i++) {
-      int e = (i < 0 || i > 127) ? -1 : i + 1;
-      Expect.equals(e, baz(i));
-    }
-  }
-}
diff --git a/tests/language_2/vm/integer_type_propagation2_test.dart b/tests/language_2/vm/integer_type_propagation2_test.dart
deleted file mode 100644
index 918d0cd9d92..00000000000
--- a/tests/language_2/vm/integer_type_propagation2_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test various optimizations and deoptimizations of optimizing compiler..
-// VMOptions=--no-background-compilation --optimization-counter-threshold=1000
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "dart:typed_data";
-
-var list = new Uint32List(1);
-
-@pragma('vm:never-inline')
-testuint32(bool b) {
-  var t;
-  if (b) {
-    t = list[0];
-  }
-  if (t != null) {
-    return t & 0x7fffffff;
-  }
-  return -1;
-}
-
-main() {
-  var s = 0;
-  testuint32(true);
-  testuint32(false);
-  for (int i = 0; i < 10000; ++i) {
-    testuint32(true);
-  }
-  Expect.equals(0, testuint32(true));
-  Expect.equals(-1, testuint32(false));
-}
diff --git a/tests/language_2/vm/integer_type_propagation_test.dart b/tests/language_2/vm/integer_type_propagation_test.dart
deleted file mode 100644
index 468f03e6eae..00000000000
--- a/tests/language_2/vm/integer_type_propagation_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test various optimizations and deoptimizations of optimizing compiler..
-// VMOptions=--no-background-compilation --optimization-counter-threshold=1000
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-@pragma('vm:never-inline')
-testuint32(y) {
-  int x = y;
-  if (x != null) {
-    return x & 0xffff;
-  }
-}
-
-main() {
-  var s = 0;
-  testuint32(0x7fffffff);
-  for (int i = 0; i < 10000; ++i) {
-    testuint32(i);
-  }
-  Expect.equals(65535, testuint32(0x7fffffff));
-  Expect.equals(65535, testuint32(0x7f3452435245ffff));
-}
diff --git a/tests/language_2/vm/irreducible_loop_test.dart b/tests/language_2/vm/irreducible_loop_test.dart
deleted file mode 100644
index 218844d5199..00000000000
--- a/tests/language_2/vm/irreducible_loop_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--no_background_compilation --optimization_counter_threshold=10
-
-import "package:expect/expect.dart";
-
-// This method forms an infinite, irreducible loop. As long as we
-// don't enter any of the branches, the method terminates. The test
-// is included to ensure an irreducible loop does not break anything
-// in the compiler.
-int bar(int x) {
-  switch (x) {
-    case_1:
-    case 1:
-      continue case_2;
-    case_2:
-    case 2:
-      continue case_1;
-  }
-  return x;
-}
-
-main() {
-  for (var i = -50; i <= 0; i++) {
-    Expect.equals(i, bar(i));
-  }
-  for (var i = 3; i <= 50; i++) {
-    Expect.equals(i, bar(i));
-  }
-}
diff --git a/tests/language_2/vm/issue11087_vm_test.dart b/tests/language_2/vm/issue11087_vm_test.dart
deleted file mode 100644
index 40763eb435a..00000000000
--- a/tests/language_2/vm/issue11087_vm_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for VM's IfConverted pass not keeping graph structure and
-// use lists in sync.
-
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-class A {
-  int x;
-}
-
-f() {
-  var a = new A();
-  a.x = (true ? 2 : 4);
-  return a.x;
-}
-
-main() {
-  for (var i = 0; i < 20; i++) f();
-}
diff --git a/tests/language_2/vm/issue21220_vm_test.dart b/tests/language_2/vm/issue21220_vm_test.dart
deleted file mode 100644
index f48392fcc67..00000000000
--- a/tests/language_2/vm/issue21220_vm_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-main() {
-  final val = (0xffb15062).toSigned(32);
-  final arr = new Int32x4List(1);
-  arr[0] = new Int32x4(val, val, val, val);
-  Expect.equals(val, arr[0].x);
-  Expect.equals(val, arr[0].y);
-  Expect.equals(val, arr[0].z);
-  Expect.equals(val, arr[0].w);
-}
diff --git a/tests/language_2/vm/lazy_async_exception_stack2_test.dart b/tests/language_2/vm/lazy_async_exception_stack2_test.dart
deleted file mode 100644
index 9cff86a1d0c..00000000000
--- a/tests/language_2/vm/lazy_async_exception_stack2_test.dart
+++ /dev/null
@@ -1,100 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_minitest.dart';
-
-import 'lazy_async_exception_stack_helper.dart' as h;
-
-foo3() async => throw "foo";
-bar3() async => throw "bar";
-
-foo2() async => foo3();
-bar2() async => bar3();
-
-foo() async => foo2();
-bar() async => bar2();
-
-test1() async {
-  // test1 -> foo -> foo2 -> foo3
-  // test1 -> bar -> bar2 -> bar3
-  // These run interleaved, check their stack traces don't become mixed.
-  var a = foo();
-  var b = bar();
-
-  try {
-    await a;
-  } catch (e, st) {
-    // st has foo,2,3 and not bar,2,3.
-    expect(
-        h.stringContainsInOrder(st.toString(), [
-          'foo3',
-          'foo2',
-          'foo',
-          'test1',
-        ]),
-        isTrue);
-    expect(st.toString().contains('bar'), isFalse);
-  }
-
-  try {
-    await b;
-  } catch (e, st) {
-    // st has bar,2,3 but not foo,2,3
-    expect(
-        h.stringContainsInOrder(st.toString(), [
-          'bar3',
-          'bar2',
-          'bar',
-          'test1',
-        ]),
-        isTrue);
-    expect(st.toString().contains('foo'), isFalse);
-  }
-}
-
-test2() async {
-  // test2 -> foo -> foo2 -> foo3
-  // test2 -> bar -> bar2 -> bar3
-  // These run sequentially, check the former stack trace didn't get linked to
-  // from the latter stack trace.
-
-  try {
-    await foo();
-  } catch (e, st) {
-    // st has foo,2,3 but not bar,2,3
-    expect(
-        h.stringContainsInOrder(st.toString(), [
-          'foo3',
-          'foo2',
-          'foo',
-          'test2',
-        ]),
-        isTrue);
-    expect(st.toString().contains('bar'), isFalse);
-  }
-
-  try {
-    await bar();
-  } catch (e, st) {
-    // st has bar,2,3 but not foo,2,3
-    expect(
-        h.stringContainsInOrder(st.toString(), [
-          'bar3',
-          'bar2',
-          'bar',
-          'test2',
-        ]),
-        isTrue);
-    expect(st.toString().contains('foo'), isFalse);
-  }
-}
-
-main() async {
-  test('lazy async exception stack', () async {
-    await test1();
-    await test2();
-  });
-}
diff --git a/tests/language_2/vm/lazy_async_exception_stack_helper.dart b/tests/language_2/vm/lazy_async_exception_stack_helper.dart
deleted file mode 100644
index 36e5c3ba084..00000000000
--- a/tests/language_2/vm/lazy_async_exception_stack_helper.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-bool stringContainsInOrder(String string, List<String> substrings) {
-  var fromIndex = 0;
-  for (var s in substrings) {
-    fromIndex = string.indexOf(s, fromIndex);
-    if (fromIndex < 0) {
-      return false;
-    }
-  }
-  return true;
-}
diff --git a/tests/language_2/vm/lazy_async_exception_stack_test.dart b/tests/language_2/vm/lazy_async_exception_stack_test.dart
deleted file mode 100644
index f037568acb6..00000000000
--- a/tests/language_2/vm/lazy_async_exception_stack_test.dart
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_minitest.dart';
-
-import 'lazy_async_exception_stack_helper.dart' as h;
-
-thrower() async {
-  throw 'oops';
-}
-
-number() async {
-  return 4;
-}
-
-generator() async* {
-  yield await number();
-  yield await thrower();
-}
-
-foo() async {
-  await for (var i in generator()) {
-    print(i);
-  }
-}
-
-main() async {
-  // Test async and async*.
-  test('lazy async exception stack', () async {
-    try {
-      await foo();
-      fail("Did not throw");
-    } catch (e, st) {
-      expect(
-          h.stringContainsInOrder(st.toString(), [
-            'thrower', '.dart:12', // no auto-format.
-            'generator', '.dart:21', // no auto-format.
-            '<asynchronous suspension>', // no auto-format.
-            'foo', '.dart', // no auto-format.
-            'main',
-          ]),
-          isTrue);
-    }
-
-    inner() async {
-      deep() async {
-        await thrower();
-      }
-
-      await deep();
-    }
-
-    // Test inner functions.
-    try {
-      await inner();
-    } catch (e, st) {
-      expect(
-          h.stringContainsInOrder(st.toString(), [
-            'thrower',
-            'main.<anonymous closure>.inner.deep',
-            'main.<anonymous closure>.inner',
-            'main',
-            '<asynchronous suspension>',
-          ]),
-          isTrue);
-    }
-
-    // Test for correct linkage.
-    try {
-      await thrower();
-    } catch (e, st) {
-      expect(
-          h.stringContainsInOrder(st.toString(), [
-            'thrower', '.dart:12', // no auto-format.
-            'main.<anonymous closure>', '.dart:73', // no auto-format.
-          ]),
-          isTrue);
-    }
-  });
-}
diff --git a/tests/language_2/vm/lazy_deopt_vm_test.dart b/tests/language_2/vm/lazy_deopt_vm_test.dart
deleted file mode 100644
index 4ff83510794..00000000000
--- a/tests/language_2/vm/lazy_deopt_vm_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-filter=foo --deoptimize_every=10 --optimization-counter-threshold=10  --no-background-compilation
-
-// @dart = 2.9
-
-// Test that lazy deoptimization on stack checks does not damage unoptimized
-// frame.
-
-import 'package:expect/expect.dart';
-
-foo() {
-  var a = 0;
-  var b = 1;
-  var c = 2;
-  var d = 3;
-  var e = 4;
-  for (var i = 0; i < 10; i++) {
-    a++;
-    b++;
-    c++;
-    d++;
-    e++;
-  }
-  Expect.equals(10, a);
-  Expect.equals(11, b);
-  Expect.equals(12, c);
-  Expect.equals(13, d);
-  Expect.equals(14, e);
-}
-
-main() {
-  for (var i = 0; i < 10; ++i) {
-    foo();
-  }
-}
diff --git a/tests/language_2/vm/lazy_deopt_with_exception_and_stacktrace_test.dart b/tests/language_2/vm/lazy_deopt_with_exception_and_stacktrace_test.dart
deleted file mode 100644
index ce9d80343dd..00000000000
--- a/tests/language_2/vm/lazy_deopt_with_exception_and_stacktrace_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test deoptimization on an optimistically hoisted smi check.
-// VMOptions=--optimization-counter-threshold=10  --no-background-compilation
-
-// @dart = 2.9
-
-// Test that lazy deoptimization works if the program returns to a function
-// that is scheduled for lazy deoptimization via an exception.
-
-import 'package:expect/expect.dart';
-
-class C {
-  dynamic x = 42;
-}
-
-@pragma('vm:never-inline')
-AA(C c, bool b) {
-  if (b) {
-    c.x = 2.5;
-    throw 123;
-  }
-}
-
-@pragma('vm:never-inline')
-T1(C c, bool b) {
-  try {
-    AA(c, b);
-  } on dynamic catch (e, st) {
-    print(e);
-    print(st);
-    Expect.isTrue(st is StackTrace, "is StackTrace");
-  }
-  return c.x + 1;
-}
-
-@pragma('vm:never-inline')
-T2(C c, bool b) {
-  try {
-    AA(c, b);
-  } on String catch (e, st) {
-    print(e);
-    print(st);
-    Expect.isTrue(st is StackTrace, "is StackTrace");
-    Expect.isTrue(false);
-  } on int catch (e, st) {
-    Expect.equals(e, 123);
-    Expect.equals(b, true);
-    Expect.equals(c.x, 2.5);
-    print(st);
-    Expect.isTrue(st is StackTrace, "is StackTrace");
-  }
-  return c.x + 1;
-}
-
-main() {
-  var c = new C();
-  for (var i = 0; i < 10000; ++i) {
-    T1(c, false);
-    T2(c, false);
-  }
-  Expect.equals(43, T1(c, false));
-  Expect.equals(43, T2(c, false));
-  Expect.equals(3.5, T1(c, true));
-  Expect.equals(3.5, T2(c, true));
-}
diff --git a/tests/language_2/vm/lazy_deopt_with_exception_concurrent_test.dart b/tests/language_2/vm/lazy_deopt_with_exception_concurrent_test.dart
deleted file mode 100644
index 3e07cbba57f..00000000000
--- a/tests/language_2/vm/lazy_deopt_with_exception_concurrent_test.dart
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test deoptimization on an optimistically hoisted smi check.
-// VMOptions=--optimization-counter-threshold=10  --no-background-compilation
-
-// @dart = 2.9
-
-// Test that lazy deoptimization works if the program returns to a function
-// that is scheduled for lazy deoptimization via an exception.
-
-import 'dart:async';
-import 'dart:isolate';
-
-import 'package:expect/expect.dart';
-
-class C {
-  dynamic x = 42;
-}
-
-@pragma('vm:never-inline')
-AA(C c, bool b) {
-  if (b) {
-    c.x = 2.5;
-    throw 123;
-  }
-}
-
-@pragma('vm:never-inline')
-T1(C c, bool b) {
-  try {
-    AA(c, b);
-  } on dynamic {}
-  return c.x + 1;
-}
-
-@pragma('vm:never-inline')
-T2(C c, bool b) {
-  try {
-    AA(c, b);
-  } on String {
-    Expect.isTrue(false);
-  } on int catch (e) {
-    Expect.equals(e, 123);
-    Expect.equals(b, true);
-    Expect.equals(c.x, 2.5);
-  }
-  return c.x + 1;
-}
-
-main() async {
-  const count = 10;
-
-  final rp = ReceivePort();
-  for (int i = 0; i < count; ++i) {
-    Isolate.spawn(entry, i, onExit: rp.sendPort);
-  }
-  final si = StreamIterator(rp);
-  int j = 0;
-  while (await si.moveNext()) {
-    j++;
-    if (j == count) break;
-  }
-  print('done');
-
-  if (j != count) throw 'a';
-  si.cancel();
-  rp.close();
-  print('done');
-}
-
-void entry(_) {
-  var c = new C();
-  for (var i = 0; i < 100000; ++i) {
-    T1(c, false);
-    T2(c, false);
-  }
-  Expect.equals(43, T1(c, false));
-  Expect.equals(43, T2(c, false));
-  Expect.equals(3.5, T1(c, true));
-  Expect.equals(3.5, T2(c, true));
-}
diff --git a/tests/language_2/vm/lazy_deopt_with_exception_test.dart b/tests/language_2/vm/lazy_deopt_with_exception_test.dart
deleted file mode 100644
index a38089f5c29..00000000000
--- a/tests/language_2/vm/lazy_deopt_with_exception_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test deoptimization on an optimistically hoisted smi check.
-// VMOptions=--optimization-counter-threshold=10  --no-background-compilation
-
-// @dart = 2.9
-
-// Test that lazy deoptimization works if the program returns to a function
-// that is scheduled for lazy deoptimization via an exception.
-
-import 'package:expect/expect.dart';
-
-class C {
-  dynamic x = 42;
-}
-
-@pragma('vm:never-inline')
-AA(C c, bool b) {
-  if (b) {
-    c.x = 2.5;
-    throw 123;
-  }
-}
-
-@pragma('vm:never-inline')
-T1(C c, bool b) {
-  try {
-    AA(c, b);
-  } on dynamic {}
-  return c.x + 1;
-}
-
-@pragma('vm:never-inline')
-T2(C c, bool b) {
-  try {
-    AA(c, b);
-  } on String {
-    Expect.isTrue(false);
-  } on int catch (e) {
-    Expect.equals(e, 123);
-    Expect.equals(b, true);
-    Expect.equals(c.x, 2.5);
-  }
-  return c.x + 1;
-}
-
-main() {
-  var c = new C();
-  for (var i = 0; i < 10000; ++i) {
-    T1(c, false);
-    T2(c, false);
-  }
-  Expect.equals(43, T1(c, false));
-  Expect.equals(43, T2(c, false));
-  Expect.equals(3.5, T1(c, true));
-  Expect.equals(3.5, T2(c, true));
-}
diff --git a/tests/language_2/vm/licm_constant_redefinition_vm_test.dart b/tests/language_2/vm/licm_constant_redefinition_vm_test.dart
deleted file mode 100644
index 28d64e5870c..00000000000
--- a/tests/language_2/vm/licm_constant_redefinition_vm_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization_counter_threshold=100 --no-use-osr --no-background_compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class X {
-  final nested = [];
-
-  get length => nested.length;
-}
-
-loop(val) {
-  var sum = 0;
-  for (var i = 0; i < 10; i++) {
-    sum += val.length;
-  }
-  return sum;
-}
-
-// LoadField(LoadField(",", nested), length) should not be hoisted.
-// Otherwise it would crash.
-testRedef() => loop(",");
-
-main() {
-  // Provide polymorphic type feedback.
-  loop("");
-  loop(new X());
-
-  // Optimize loop with a constant argument.
-  for (var i = 0; i < 100; i++) {
-    testRedef();
-  }
-}
diff --git a/tests/language_2/vm/load_elimination_any_use_creates_alias_test.dart b/tests/language_2/vm/load_elimination_any_use_creates_alias_test.dart
deleted file mode 100644
index b1092ae4680..00000000000
--- a/tests/language_2/vm/load_elimination_any_use_creates_alias_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test correctness of side effects tracking used by load to load forwarding.
-
-// @dart = 2.9
-
-// VMOptions=--no-use-osr --optimization-counter-threshold=10 --no-background-compilation
-
-import "package:expect/expect.dart";
-
-B G;
-
-@pragma('vm:never-inline')
-modify() {
-  G.bval = 123;
-}
-
-class B {
-  @pragma('vm:prefer-inline')
-  poly() {
-    G = this;
-    modify();
-    return bval;
-  }
-
-  var bval = -1;
-}
-
-class C {
-  poly() => null;
-}
-
-@pragma('vm:prefer-inline')
-foo(obj) => obj.poly();
-
-@pragma('vm:never-inline')
-test() {
-  var b = new B();
-
-  foo(b);
-  return b.bval;
-}
-
-main() {
-  foo(new C());
-  foo(new B());
-  for (var i = 0; i < 100; i++) test();
-  Expect.equals(123, test());
-}
diff --git a/tests/language_2/vm/load_elimination_has_loads_from_place_test.dart b/tests/language_2/vm/load_elimination_has_loads_from_place_test.dart
deleted file mode 100644
index 0a5d3bd5d99..00000000000
--- a/tests/language_2/vm/load_elimination_has_loads_from_place_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test correctness of side effects tracking used by load to load forwarding.
-
-// @dart = 2.9
-
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// Tests correct handling of redefinitions in aliasing computation.
-
-import "package:expect/expect.dart";
-
-var H = true;
-
-class A {
-  B bb;
-
-  @pragma('vm:prefer-inline')
-  poly(p) {
-    if (H) {
-      bb = p;
-    }
-    B t = bb;
-    t.bval = 123;
-    return t.bval;
-  }
-}
-
-class B {
-  int bval = -1;
-
-  @pragma('vm:prefer-inline')
-  poly(p) {
-    return bval;
-  }
-}
-
-@pragma('vm:prefer-inline')
-foo(obj, p) => obj.poly(p);
-
-@pragma('vm:never-inline')
-test() {
-  A a = new A();
-  B b = new B();
-  foo(a, b);
-  return b.bval;
-}
-
-main() {
-  // Prime foo with polymorphic type feedback.
-  foo(new B(), new A());
-  foo(new A(), new B());
-
-  for (var i = 0; i < 100; i++) test();
-  Expect.equals(123, test());
-}
diff --git a/tests/language_2/vm/load_elimination_mark_stored_values_escaping_test.dart b/tests/language_2/vm/load_elimination_mark_stored_values_escaping_test.dart
deleted file mode 100644
index 4a3835ca1a9..00000000000
--- a/tests/language_2/vm/load_elimination_mark_stored_values_escaping_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test correctness of side effects tracking used by load to load forwarding.
-
-// @dart = 2.9
-
-// VMOptions=--no-use-osr --optimization-counter-threshold=10 --no-background-compilation
-
-// Tests correct handling of redefinitions in aliasing computation.
-
-import "package:expect/expect.dart";
-
-B G;
-
-class A {
-  int val = -1;
-
-  @pragma('vm:prefer-inline')
-  poly(p) {
-    p.aa = this;
-  }
-}
-
-@pragma('vm:never-inline')
-modify() {
-  G.aa.val = 123;
-}
-
-class B {
-  A aa;
-
-  @pragma('vm:prefer-inline')
-  poly(p) {
-    G = this;
-    foo2(p, this);
-    modify();
-  }
-}
-
-@pragma('vm:prefer-inline')
-foo(obj, p) => obj.poly(p);
-
-@pragma('vm:prefer-inline')
-foo2(obj, p) => obj.poly(p);
-
-@pragma('vm:never-inline')
-testfunc() {
-  var a = new A();
-  var b = new B();
-  foo(b, a);
-  return a.val;
-}
-
-main() {
-  foo(new B(), new A());
-  foo(new A(), new B());
-  foo2(new B(), new A());
-  foo2(new A(), new B());
-  for (var i = 0; i < 100; i++) testfunc();
-  Expect.equals(123, testfunc());
-}
diff --git a/tests/language_2/vm/load_elimination_two_redefinitions_test.dart b/tests/language_2/vm/load_elimination_two_redefinitions_test.dart
deleted file mode 100644
index 3e8e79271e6..00000000000
--- a/tests/language_2/vm/load_elimination_two_redefinitions_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test correctness of side effects tracking used by load to load forwarding.
-
-// @dart = 2.9
-
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// Tests correct handling of redefinitions in aliasing computation.
-
-import "package:expect/expect.dart";
-
-var H = true;
-
-class A {
-  B bb;
-
-  @pragma('vm:prefer-inline')
-  poly(p) {
-    if (H) {
-      bb = p;
-    }
-    B t = bb;
-    t.bval = 123;
-    return t.bval;
-  }
-}
-
-class B {
-  int bval = -1;
-
-  @pragma('vm:prefer-inline')
-  poly(p) {
-    return bval;
-  }
-}
-
-@pragma('vm:prefer-inline')
-foo(obj, p) => obj.poly(p);
-
-@pragma('vm:never-inline')
-test() {
-  A a = new A();
-  B b = new B();
-  foo(a, b);
-  foo(a, b);
-  return b.bval;
-}
-
-main() {
-  // Prime foo with polymorphic type feedback.
-  foo(new B(), new A());
-  foo(new A(), new B());
-
-  for (var i = 0; i < 100; i++) test();
-  Expect.equals(123, test());
-}
diff --git a/tests/language_2/vm/load_to_load_forwarding_cutdown_vm_test.dart b/tests/language_2/vm/load_to_load_forwarding_cutdown_vm_test.dart
deleted file mode 100644
index 5dbc50334e9..00000000000
--- a/tests/language_2/vm/load_to_load_forwarding_cutdown_vm_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test correctness of side effects tracking used by load to load forwarding.
-// In this cutdown version of the load_to_load_forwarding_vm test, the function
-// being compiled ends up in a single basic block, which tests load
-// elimination when generating the initial sets.
-
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-import "package:expect/expect.dart";
-import "dart:typed_data";
-
-testViewAliasing1() {
-  final f64 = new Float64List(1);
-  final f32 = new Float32List.view(f64.buffer);
-  f64[0] = 1.0; // Should not be forwarded.
-  f32[1] = 2.0; // upper 32bits for 2.0f and 2.0 are the same
-  return f64[0];
-}
-
-main() {
-  for (var i = 0; i < 20; i++) {
-    Expect.equals(2.0, testViewAliasing1());
-  }
-}
diff --git a/tests/language_2/vm/load_to_load_forwarding_vm_test.dart b/tests/language_2/vm/load_to_load_forwarding_vm_test.dart
deleted file mode 100644
index fbbe30acd62..00000000000
--- a/tests/language_2/vm/load_to_load_forwarding_vm_test.dart
+++ /dev/null
@@ -1,596 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test correctness of side effects tracking used by load to load forwarding.
-
-// @dart = 2.9
-
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-import "package:expect/expect.dart";
-import "dart:typed_data";
-
-class A {
-  var x, y;
-  A(this.x, this.y);
-}
-
-foo(a) {
-  var value1 = a.x;
-  var value2 = a.y;
-  for (var j = 1; j < 4; j++) {
-    value1 |= a.x << (j * 8);
-    a.y += 1;
-    a.x += 1;
-    value2 |= a.y << (j * 8);
-  }
-  return [value1, value2];
-}
-
-bar(a, mode) {
-  var value1 = a.x;
-  var value2 = a.y;
-  for (var j = 1; j < 4; j++) {
-    value1 |= a.x << (j * 8);
-    a.y += 1;
-    if (mode) a.x += 1;
-    a.x += 1;
-    value2 |= a.y << (j * 8);
-  }
-  return [value1, value2];
-}
-
-// Verify that immutable and mutable VM fields (array length in this case)
-// are not confused by load forwarding even if the access the same offset
-// in the object.
-testImmutableVMFields(arr, immutable) {
-  if (immutable) {
-    return arr.length; // Immutable length load.
-  }
-
-  if (arr.length < 2) {
-    // Mutable length load, should not be forwarded.
-    arr.add(null);
-  }
-
-  return arr.length;
-}
-
-testPhiRepresentation(f, arr) {
-  if (f) {
-    arr[0] = arr[0] + arr[1];
-  } else {
-    arr[0] = arr[0] - arr[1];
-  }
-  return arr[0];
-}
-
-testPhiConversions(f, arr) {
-  if (f) {
-    arr[0] = arr[1];
-  } else {
-    arr[0] = arr[2];
-  }
-  return arr[0];
-}
-
-class M {
-  var x;
-  M(this.x);
-}
-
-fakeAliasing(arr) {
-  var a = new M(10);
-  var b = new M(10);
-  var c = arr.length;
-
-  if (c * c != c * c) {
-    arr[0] = a; // Escape.
-    arr[0] = b;
-  }
-
-  return c * c; // Deopt point.
-}
-
-class X {
-  var next;
-  X(this.next);
-}
-
-testPhiForwarding(obj) {
-  if (obj.next == null) {
-    return 1;
-  }
-
-  var len = 0;
-  while (obj != null) {
-    len++;
-    obj = obj.next; // This load should not be forwarded.
-  }
-
-  return len;
-}
-
-testPhiForwarding2(obj) {
-  if (obj.next == null) {
-    return 1;
-  }
-
-  var len = 0, next = null;
-  while ((obj != null) && len < 2) {
-    len++;
-    obj = obj.next; // This load should be forwarded.
-    next = obj.next;
-  }
-
-  return len;
-}
-
-class V {
-  final f;
-  V(this.f);
-}
-
-testPhiForwarding3() {
-  var a = new V(-0.1);
-  var c = new V(0.0);
-  var b = new V(0.1);
-
-  for (var i = 0; i < 3; i++) {
-    var af = a.f;
-    var bf = b.f;
-    var cf = c.f;
-    a = new V(cf);
-    b = new V(af);
-    c = new V(bf);
-  }
-
-  Expect.equals(-0.1, a.f);
-  Expect.equals(0.1, b.f);
-  Expect.equals(0.0, c.f);
-}
-
-testPhiForwarding4() {
-  var a = new V(-0.1);
-  var b = new V(0.1);
-  var c = new V(0.0);
-
-  var result = new List<dynamic>.filled(9, null);
-  for (var i = 0, j = 0; i < 3; i++) {
-    result[j++] = a.f;
-    result[j++] = b.f;
-    result[j++] = c.f;
-    var xa = a;
-    var xb = b;
-    a = c;
-    b = xa;
-    c = xb;
-  }
-
-  Expect.listEquals([-0.1, 0.1, 0.0, 0.0, -0.1, 0.1, 0.1, 0.0, -0.1], result);
-}
-
-class C {
-  C(this.box, this.parent);
-  final box;
-  final C parent;
-}
-
-testPhiForwarding5(C c) {
-  var s = 0;
-  var tmp = c;
-  var a = c.parent;
-  if (a.box + tmp.box != 1) throw "failed";
-  do {
-    s += tmp.box + a.box;
-    tmp = a;
-    a = a.parent;
-  } while (a != null);
-  return s;
-}
-
-class U {
-  var x, y;
-  U()
-      : x = 0,
-        y = 0;
-}
-
-testEqualPhisElimination() {
-  var u = new U();
-  var v = new U();
-  var sum = 0;
-  for (var i = 0; i < 3; i++) {
-    u.x = i;
-    u.y = i;
-    if ((i & 1) == 1) {
-      v.x = i + 1;
-      v.y = i + 1;
-    } else {
-      v.x = i - 1;
-      v.y = i - 1;
-    }
-    sum += v.x + v.y;
-  }
-  Expect.equals(4, sum);
-  Expect.equals(2, u.x);
-  Expect.equals(2, u.y);
-}
-
-testPhiMultipleRepresentations(f, arr) {
-  var w;
-  if (f) {
-    w = arr[0] + arr[1];
-  } else {
-    w = arr[0] - arr[1];
-  }
-  var v;
-  if (f) {
-    v = arr[0];
-  } else {
-    v = arr[0];
-  }
-  return v + w;
-}
-
-testIndexedNoAlias(a) {
-  a[0] = 1;
-  a[1] = 2;
-  a[2] = 3;
-  return a[0] + a[1];
-}
-
-//
-// Tests for indexed store aliases were autogenerated to have extensive
-// coverage for all interesting aliasing combinations within the alias
-// lattice (*[*], *[C], X[*], X[C])
-//
-
-testIndexedAliasedStore1(i) {
-  var a = new List<dynamic>.filled(2, null);
-  a[0] = 1; // X[C]
-  a[i] = 2; // X[*]
-  return a[0];
-}
-
-testIndexedAliasedStore2(f, c) {
-  var a = new List<dynamic>.filled(2, null);
-  var d = f ? a : c;
-  a[0] = 1; // X[C]
-  d[0] = 2; // *[C]
-  return a[0];
-}
-
-testIndexedAliasedStore3(f, c, i) {
-  var a = new List<dynamic>.filled(2, null);
-  var d = f ? a : c;
-  a[0] = 1; // X[C]
-  d[i] = 2; // *[*]
-  return a[0];
-}
-
-testIndexedAliasedStore4(i) {
-  var a = new List<dynamic>.filled(2, null);
-  a[i] = 1; // X[*]
-  a[0] = 2; // X[C]
-  return a[i];
-}
-
-testIndexedAliasedStore5(i, j) {
-  var a = new List<dynamic>.filled(2, null);
-  a[i] = 1; // X[*]
-  a[j] = 2; // X[*]
-  return a[i];
-}
-
-testIndexedAliasedStore6(i, f, c) {
-  var a = new List<dynamic>.filled(2, null);
-  var d = f ? a : c;
-  a[i] = 1; // X[*]
-  d[0] = 2; // *[C]
-  return a[i];
-}
-
-testIndexedAliasedStore7(i, f, c) {
-  var a = new List<dynamic>.filled(2, null);
-  var d = f ? a : c;
-  a[i] = 1; // X[*]
-  d[i] = 2; // *[*]
-  return a[i];
-}
-
-testIndexedAliasedStore8(c, i) {
-  c[0] = 1; // *[C]
-  c[i] = 2; // *[*]
-  return c[0];
-}
-
-testIndexedAliasedStore9(c, f) {
-  var a = new List<dynamic>.filled(2, null);
-  var d = f ? a : c;
-  c[0] = 1; // *[C]
-  d[0] = 2; // *[C]
-  return c[0];
-}
-
-testIndexedAliasedStore10(c, i) {
-  c[i] = 1; // *[*]
-  c[0] = 2; // *[C]
-  return c[i];
-}
-
-testIndexedAliasedStore11(c, i, j) {
-  c[i] = 1; // *[*]
-  c[j] = 2; // *[*]
-  return c[i];
-}
-
-testIndexedAliasedStore12(f, c) {
-  var a = new List<dynamic>.filled(2, null);
-  var d = f ? a : c;
-  d[0] = 1; // *[C]
-  a[0] = 2; // X[C]
-  return d[0];
-}
-
-testIndexedAliasedStore13(f, c, i) {
-  var a = new List<dynamic>.filled(2, null);
-  var d = f ? a : c;
-  d[0] = 1; // *[C]
-  a[i] = 2; // X[*]
-  return d[0];
-}
-
-testIndexedAliasedStore14(f, c, i) {
-  var a = new List<dynamic>.filled(2, null);
-  var d = f ? a : c;
-  d[i] = 1; // *[*]
-  a[0] = 2; // X[C]
-  return d[i];
-}
-
-testIndexedAliasedStore15(f, c, i) {
-  var a = new List<dynamic>.filled(2, null);
-  var d = f ? a : c;
-  d[i] = 1; // *[*]
-  a[i] = 2; // X[*]
-  return d[i];
-}
-
-testIndexedAliasedStores() {
-  var arr = new List<dynamic>.filled(2, null);
-
-  for (var i = 0; i < 50; i++) {
-    Expect.equals(2, testIndexedAliasedStore1(0));
-    Expect.equals(1, testIndexedAliasedStore1(1));
-  }
-
-  for (var i = 0; i < 50; i++) {
-    Expect.equals(1, testIndexedAliasedStore2(false, arr));
-    Expect.equals(2, testIndexedAliasedStore2(true, arr));
-  }
-
-  for (var i = 0; i < 50; i++) {
-    Expect.equals(1, testIndexedAliasedStore3(false, arr, 0));
-    Expect.equals(1, testIndexedAliasedStore3(false, arr, 1));
-    Expect.equals(2, testIndexedAliasedStore3(true, arr, 0));
-    Expect.equals(1, testIndexedAliasedStore3(true, arr, 1));
-  }
-
-  for (var i = 0; i < 50; i++) {
-    Expect.equals(2, testIndexedAliasedStore4(0));
-    Expect.equals(1, testIndexedAliasedStore4(1));
-  }
-
-  for (var i = 0; i < 50; i++) {
-    Expect.equals(2, testIndexedAliasedStore5(0, 0));
-    Expect.equals(1, testIndexedAliasedStore5(0, 1));
-    Expect.equals(1, testIndexedAliasedStore5(1, 0));
-    Expect.equals(2, testIndexedAliasedStore5(1, 1));
-  }
-
-  for (var i = 0; i < 50; i++) {
-    Expect.equals(1, testIndexedAliasedStore6(0, false, arr));
-    Expect.equals(2, testIndexedAliasedStore6(0, true, arr));
-    Expect.equals(1, testIndexedAliasedStore6(1, false, arr));
-    Expect.equals(1, testIndexedAliasedStore6(1, true, arr));
-  }
-
-  for (var i = 0; i < 50; i++) {
-    Expect.equals(1, testIndexedAliasedStore7(0, false, arr));
-    Expect.equals(2, testIndexedAliasedStore7(0, true, arr));
-    Expect.equals(1, testIndexedAliasedStore7(1, false, arr));
-    Expect.equals(2, testIndexedAliasedStore7(1, true, arr));
-  }
-
-  for (var i = 0; i < 50; i++) {
-    Expect.equals(2, testIndexedAliasedStore8(arr, 0));
-    Expect.equals(1, testIndexedAliasedStore8(arr, 1));
-  }
-
-  for (var i = 0; i < 50; i++) {
-    Expect.equals(2, testIndexedAliasedStore9(arr, false));
-    Expect.equals(1, testIndexedAliasedStore9(arr, true));
-  }
-
-  for (var i = 0; i < 50; i++) {
-    Expect.equals(2, testIndexedAliasedStore10(arr, 0));
-    Expect.equals(1, testIndexedAliasedStore10(arr, 1));
-  }
-
-  for (var i = 0; i < 50; i++) {
-    Expect.equals(2, testIndexedAliasedStore11(arr, 0, 0));
-    Expect.equals(1, testIndexedAliasedStore11(arr, 0, 1));
-    Expect.equals(1, testIndexedAliasedStore11(arr, 1, 0));
-    Expect.equals(2, testIndexedAliasedStore11(arr, 1, 1));
-  }
-
-  for (var i = 0; i < 50; i++) {
-    Expect.equals(1, testIndexedAliasedStore12(false, arr));
-    Expect.equals(2, testIndexedAliasedStore12(true, arr));
-  }
-
-  for (var i = 0; i < 50; i++) {
-    Expect.equals(1, testIndexedAliasedStore13(false, arr, 0));
-    Expect.equals(1, testIndexedAliasedStore13(false, arr, 1));
-    Expect.equals(2, testIndexedAliasedStore13(true, arr, 0));
-    Expect.equals(1, testIndexedAliasedStore13(true, arr, 1));
-  }
-
-  for (var i = 0; i < 50; i++) {
-    Expect.equals(1, testIndexedAliasedStore14(false, arr, 0));
-    Expect.equals(1, testIndexedAliasedStore14(false, arr, 1));
-    Expect.equals(2, testIndexedAliasedStore14(true, arr, 0));
-    Expect.equals(1, testIndexedAliasedStore14(true, arr, 1));
-  }
-
-  for (var i = 0; i < 50; i++) {
-    Expect.equals(1, testIndexedAliasedStore15(false, arr, 0));
-    Expect.equals(1, testIndexedAliasedStore15(false, arr, 1));
-    Expect.equals(2, testIndexedAliasedStore15(true, arr, 0));
-    Expect.equals(2, testIndexedAliasedStore15(true, arr, 1));
-  }
-}
-
-var indices = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
-
-class Z {
-  var x = 42;
-}
-
-var global_array = new List<Z>.filled(1, null);
-
-side_effect() {
-  global_array[0].x++;
-}
-
-testAliasingStoreIndexed(array) {
-  var z = new Z();
-  array[0] = z;
-  side_effect();
-  return z.x;
-}
-
-class ZZ {
-  var f;
-}
-
-var zz, f0 = 42;
-
-testAliasesRefinement() {
-  zz = new ZZ();
-  var b = zz;
-  if (b.f == null) {
-    b.f = f0;
-  }
-  return b.f;
-}
-
-testViewAliasing1() {
-  final f64 = new Float64List(1);
-  final f32 = new Float32List.view(f64.buffer);
-  f64[0] = 1.0; // Should not be forwarded.
-  f32[1] = 2.0; // upper 32bits for 2.0f and 2.0 are the same
-  return f64[0];
-}
-
-testViewAliasing2() {
-  final f64 = new Float64List(2);
-  final f64v = new Float64List.view(f64.buffer, Float64List.bytesPerElement);
-  f64[1] = 1.0; // Should not be forwarded.
-  f64v[0] = 2.0;
-  return f64[1];
-}
-
-testViewAliasing3() {
-  final u8 = new Uint8List(Float64List.bytesPerElement * 2);
-  final f64 = new Float64List.view(u8.buffer, Float64List.bytesPerElement);
-  f64[0] = 1.0; // Should not be forwarded.
-  u8[15] = 0x40;
-  u8[14] = 0x00;
-  return f64[0];
-}
-
-testViewAliasing4() {
-  final u8 = new Uint8List(Float64List.bytesPerElement * 2);
-  final f64 = new Float64List.view(u8.buffer, Float64List.bytesPerElement);
-  f64[0] = 2.0; // Not aliased: should be forwarded.
-  u8[0] = 0x40;
-  u8[1] = 0x00;
-  return f64[0];
-}
-
-main() {
-  final fixed = new List<dynamic>.filled(10, null);
-  final growable = [];
-  testImmutableVMFields(fixed, true);
-  testImmutableVMFields(growable, false);
-  testImmutableVMFields(growable, false);
-
-  final f64List = new Float64List(2);
-  testPhiRepresentation(true, f64List);
-  testPhiRepresentation(false, f64List);
-
-  final obj = new X(new X(new X(null)));
-
-  final cs = new C(0, new C(1, new C(2, null)));
-
-  for (var i = 0; i < 20; i++) {
-    Expect.listEquals([0x02010000, 0x03020100], foo(new A(0, 0)));
-    Expect.listEquals([0x02010000, 0x03020100], bar(new A(0, 0), false));
-    Expect.listEquals([0x04020000, 0x03020100], bar(new A(0, 0), true));
-    testImmutableVMFields(fixed, true);
-    testPhiRepresentation(true, f64List);
-    testPhiForwarding(obj);
-    testPhiForwarding2(obj);
-    testPhiForwarding3();
-    testPhiForwarding4();
-    Expect.equals(4, testPhiForwarding5(cs));
-    testEqualPhisElimination();
-    Expect.equals(f0, testAliasesRefinement());
-  }
-
-  Expect.equals(1, testImmutableVMFields([], false));
-  Expect.equals(2, testImmutableVMFields([1], false));
-  Expect.equals(2, testImmutableVMFields([1, 2], false));
-  Expect.equals(3, testImmutableVMFields([1, 2, 3], false));
-
-  final u32List = new Uint32List(3);
-  u32List[0] = 0;
-  u32List[1] = 0x3FFFFFFF;
-  u32List[2] = 0x7FFFFFFF;
-
-  for (var i = 0; i < 20; i++) {
-    testPhiConversions(true, u32List);
-    testPhiConversions(false, u32List);
-  }
-
-  for (var i = 0; i < 20; i++) {
-    Expect.equals(0.0, testPhiMultipleRepresentations(true, f64List));
-    Expect.equals(0, testPhiMultipleRepresentations(false, const [1, 2]));
-  }
-
-  final escape = new List<dynamic>.filled(1, null);
-  for (var i = 0; i < 20; i++) {
-    fakeAliasing(escape);
-  }
-
-  final array = new List<dynamic>.filled(3, null);
-  for (var i = 0; i < 20; i++) {
-    Expect.equals(3, testIndexedNoAlias(array));
-  }
-
-  testIndexedAliasedStores();
-
-  var test_array = new List<dynamic>.filled(1, null);
-  for (var i = 0; i < 20; i++) {
-    Expect.equals(43, testAliasingStoreIndexed(global_array));
-  }
-
-  for (var i = 0; i < 20; i++) {
-    Expect.equals(2.0, testViewAliasing1());
-    Expect.equals(2.0, testViewAliasing2());
-    Expect.equals(2.0, testViewAliasing3());
-    Expect.equals(2.0, testViewAliasing4());
-  }
-}
diff --git a/tests/language_2/vm/load_to_load_unaligned_forwarding_vm_test.dart b/tests/language_2/vm/load_to_load_unaligned_forwarding_vm_test.dart
deleted file mode 100644
index e648e949e01..00000000000
--- a/tests/language_2/vm/load_to_load_unaligned_forwarding_vm_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test correctness of side effects tracking used by load to load forwarding.
-// Should be merged into load_to_load_forwarding once Issue 22151 is fixed.
-
-// @dart = 2.9
-
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-import "package:expect/expect.dart";
-import "dart:typed_data";
-
-testViewAliasing5() {
-  final f32 = new Float32List(2);
-  final raw = f32.buffer.asByteData();
-  f32[0] = 1.5; // Aliased by unaligned write of the same size.
-  raw.setInt32(1, 0x00400000, Endian.little);
-  return f32[0];
-}
-
-main() {
-  for (var i = 0; i < 20; i++) {
-    Expect.equals(2.0, testViewAliasing5());
-  }
-}
diff --git a/tests/language_2/vm/math_vm_test.dart b/tests/language_2/vm/math_vm_test.dart
deleted file mode 100644
index 3fc97bcbb38..00000000000
--- a/tests/language_2/vm/math_vm_test.dart
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Tests that the VM does not crash on weird corner cases of class Math.
-// VMOptions=--optimization_counter_threshold=100 --no-background_compilation
-
-// @dart = 2.9
-
-library math_vm_test;
-
-import "package:expect/expect.dart";
-import 'dart:math';
-
-class FakeNumber {
-  const FakeNumber();
-  void toDouble() {}
-}
-
-class MathTest {
-  static bool testParseInt(x) {
-    try {
-      int.parse(x); // Expects string.
-      return true;
-    } catch (e) {
-      return false;
-    }
-  }
-
-  static bool testSqrt(x) {
-    try {
-      sqrt(x); // Expects number.
-      return true;
-    } catch (e) {
-      return false;
-    }
-  }
-
-  static void testMain() {
-    Expect.equals(false, testParseInt(5));
-    Expect.equals(false, testSqrt(const FakeNumber()));
-  }
-}
-
-testDoublePow() {
-  Expect.equals((1 << 32).toDouble(), pow(2.0, 32));
-}
-
-testSinCos(a) {
-  double sVal = sin(a);
-  double cVal = cos(a);
-  return sVal + cVal;
-}
-
-main() {
-  const double value = 1.54;
-  final firstRes = testSinCos(value);
-  for (int i = 0; i < 200; i++) {
-    MathTest.testMain();
-    testDoublePow();
-    testSinCos(value);
-  }
-  Expect.equals(firstRes, testSinCos(value));
-}
diff --git a/tests/language_2/vm/mixin_test.dart b/tests/language_2/vm/mixin_test.dart
deleted file mode 100755
index b68f98a4db5..00000000000
--- a/tests/language_2/vm/mixin_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Illustrates inlining heuristic issue of
-// https://github.com/dart-lang/sdk/issues/37126
-// (mixins introduce one extra depth of inlining).
-
-// VMOptions=--deterministic
-
-import "package:expect/expect.dart";
-
-class X {
-  const X();
-  int foo() {
-    return 1;
-  }
-}
-
-mixin YMixin {
-  int bar() {
-    return 2;
-  }
-}
-
-class Y with YMixin {
-  const Y();
-}
-
-@pragma("vm:never-inline")
-int foobar() {
-  return new X().foo() + new Y().bar();
-}
-
-main() {
-  Expect.equals(3, foobar());
-}
diff --git a/tests/language_2/vm/modtruncdiv_int_test.dart b/tests/language_2/vm/modtruncdiv_int_test.dart
deleted file mode 100644
index b34ac76e6eb..00000000000
--- a/tests/language_2/vm/modtruncdiv_int_test.dart
+++ /dev/null
@@ -1,300 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--no_background_compilation --optimization_counter_threshold=10
-// VMOptions=--no_background_compilation --optimization_counter_threshold=10 --use_slow_path
-
-import "package:expect/expect.dart";
-
-// Tests for long trunc div and mod under
-// 64-bit arithmetic wrap-around semantics.
-
-final int maxInt32 = 2147483647;
-final int minInt32 = -2147483648;
-final int maxInt64 = 0x7fffffffffffffff;
-final int minInt64 = 0x8000000000000000;
-
-int mod(int x, int y) {
-  return x % y;
-}
-
-int truncdiv(int x, int y) {
-  return x ~/ y;
-}
-
-doModConstants() {
-  Expect.equals(0, mod(0, 1));
-  Expect.equals(0, mod(0, -1));
-  Expect.equals(1, mod(1, 2));
-  Expect.equals(1, mod(-1, 2));
-  Expect.equals(1, mod(1, -2));
-  Expect.equals(1, mod(-1, -2));
-  Expect.equals(2, mod(8, 3));
-  Expect.equals(1, mod(-8, 3));
-  Expect.equals(2, mod(8, -3));
-  Expect.equals(1, mod(-8, -3));
-  Expect.equals(0, mod(6, 3));
-  Expect.equals(1, mod(7, 3));
-  Expect.equals(2, mod(8, 3));
-  Expect.equals(0, mod(9, 3));
-
-  Expect.equals(1, mod(1, maxInt32));
-  Expect.equals(1, mod(1, maxInt64));
-  Expect.equals(1, mod(1, minInt32));
-  Expect.equals(1, mod(1, minInt64));
-
-  Expect.equals(maxInt32 - 1, mod(-1, maxInt32));
-  Expect.equals(maxInt64 - 1, mod(-1, maxInt64));
-  Expect.equals(maxInt32, mod(-1, minInt32));
-  Expect.equals(maxInt64, mod(-1, minInt64));
-
-  Expect.equals(0, mod(minInt32, -1));
-  Expect.equals(0, mod(maxInt32, -1));
-  Expect.equals(0, mod(minInt64, -1));
-  Expect.equals(0, mod(maxInt64, -1));
-
-  Expect.equals(0, mod(maxInt32, maxInt32));
-  Expect.equals(maxInt32, mod(maxInt32, minInt32));
-  Expect.equals(maxInt32, mod(maxInt32, maxInt64));
-  Expect.equals(maxInt32, mod(maxInt32, minInt64));
-
-  Expect.equals(maxInt32 - 1, mod(minInt32, maxInt32));
-  Expect.equals(0, mod(minInt32, minInt32));
-  Expect.equals(9223372034707292159, mod(minInt32, maxInt64));
-  Expect.equals(9223372034707292160, mod(minInt32, minInt64));
-
-  Expect.equals(1, mod(maxInt64, maxInt32));
-  Expect.equals(0, mod(maxInt64 - 1, maxInt32));
-  Expect.equals(maxInt32 - 1, mod(maxInt64 - 2, maxInt32));
-  Expect.equals(maxInt32, mod(maxInt64, minInt32));
-  Expect.equals(0, mod(maxInt64, maxInt64));
-  Expect.equals(maxInt64, mod(maxInt64, minInt64));
-
-  Expect.equals(maxInt32 - 2, mod(minInt64, maxInt32));
-  Expect.equals(0, mod(minInt64, minInt32));
-  Expect.equals(maxInt64 - 1, mod(minInt64, maxInt64));
-  Expect.equals(0, mod(minInt64, minInt64));
-
-  Expect.equals(maxInt32 - 1, mod(maxInt32 - 1, maxInt32));
-  Expect.equals(1, mod(maxInt32 + 1, maxInt32));
-  Expect.equals(maxInt32 - 2, mod(minInt32 - 1, maxInt32));
-  Expect.equals(0, mod(minInt32 + 1, maxInt32));
-
-  Expect.equals(15, mod(-1, 16));
-  Expect.equals(15, mod(-17, 16));
-  Expect.equals(15, mod(-1, -16));
-  Expect.equals(15, mod(-17, -16));
-  Expect.equals(100, mod(100, 1 << 32));
-  Expect.equals(100, mod(100, -(1 << 32)));
-  Expect.equals((1 << 32) - 1, mod((1 << 35) - 1, 1 << 32));
-  Expect.equals((1 << 32) - 1, mod((1 << 35) - 1, -(1 << 32)));
-  Expect.equals(maxInt64, mod(-1, 1 << 63));
-  Expect.equals(0, mod(minInt64, 1 << 63));
-}
-
-doModVarConstant() {
-  for (int i = -10; i < 10; i++) {
-    Expect.equals(i & maxInt64, mod(i, minInt64));
-  }
-}
-
-doTruncDivConstants() {
-  Expect.equals(0, truncdiv(0, 1));
-  Expect.equals(0, truncdiv(0, -1));
-  Expect.equals(0, truncdiv(1, 2));
-  Expect.equals(0, truncdiv(-1, 2));
-  Expect.equals(0, truncdiv(1, -2));
-  Expect.equals(0, truncdiv(-1, -2));
-  Expect.equals(2, truncdiv(8, 3));
-  Expect.equals(-2, truncdiv(-8, 3));
-  Expect.equals(-2, truncdiv(8, -3));
-  Expect.equals(2, truncdiv(-8, -3));
-  Expect.equals(2, truncdiv(6, 3));
-  Expect.equals(2, truncdiv(7, 3));
-  Expect.equals(2, truncdiv(8, 3));
-  Expect.equals(3, truncdiv(9, 3));
-
-  Expect.equals(0, truncdiv(1, maxInt32));
-  Expect.equals(0, truncdiv(1, maxInt64));
-  Expect.equals(0, truncdiv(1, minInt32));
-  Expect.equals(0, truncdiv(1, minInt64));
-
-  Expect.equals(0, truncdiv(-1, maxInt32));
-  Expect.equals(0, truncdiv(-1, maxInt64));
-  Expect.equals(0, truncdiv(-1, minInt32));
-  Expect.equals(0, truncdiv(-1, minInt64));
-
-  Expect.equals(-minInt32, truncdiv(minInt32, -1));
-  Expect.equals(-maxInt32, truncdiv(maxInt32, -1));
-  Expect.equals(minInt64, truncdiv(minInt64, -1));
-  Expect.equals(-maxInt64, truncdiv(maxInt64, -1));
-
-  Expect.equals(1, truncdiv(maxInt32, maxInt32));
-  Expect.equals(0, truncdiv(maxInt32, minInt32));
-  Expect.equals(0, truncdiv(maxInt32, maxInt64));
-  Expect.equals(0, truncdiv(maxInt32, minInt64));
-
-  Expect.equals(-1, truncdiv(minInt32, maxInt32));
-  Expect.equals(1, truncdiv(minInt32, minInt32));
-  Expect.equals(0, truncdiv(minInt32, maxInt64));
-  Expect.equals(0, truncdiv(minInt32, minInt64));
-
-  Expect.equals(4294967298, truncdiv(maxInt64, maxInt32));
-  Expect.equals(4294967298, truncdiv(maxInt64 - 1, maxInt32));
-  Expect.equals(4294967297, truncdiv(maxInt64 - 2, maxInt32));
-  Expect.equals(-4294967295, truncdiv(maxInt64, minInt32));
-  Expect.equals(1, truncdiv(maxInt64, maxInt64));
-  Expect.equals(0, truncdiv(maxInt64, minInt64));
-
-  Expect.equals(-4294967298, truncdiv(minInt64, maxInt32));
-  Expect.equals(4294967296, truncdiv(minInt64, minInt32));
-  Expect.equals(-1, truncdiv(minInt64, maxInt64));
-  Expect.equals(1, truncdiv(minInt64, minInt64));
-
-  Expect.equals(0, truncdiv(maxInt32 - 1, maxInt32));
-  Expect.equals(1, truncdiv(maxInt32 + 1, maxInt32));
-  Expect.equals(-1, truncdiv(minInt32 - 1, maxInt32));
-  Expect.equals(-1, truncdiv(minInt32 + 1, maxInt32));
-}
-
-int acc;
-
-doModVars(int xlo, int xhi, int ylo, int yhi) {
-  for (int x = xlo; x <= xhi; x++) {
-    for (int y = ylo; y <= yhi; y++) {
-      acc += mod(x, y);
-    }
-  }
-}
-
-doTruncDivVars(int xlo, int xhi, int ylo, int yhi) {
-  for (int x = xlo; x <= xhi; x++) {
-    for (int y = ylo; y <= yhi; y++) {
-      acc += truncdiv(x, y);
-    }
-  }
-}
-
-main() {
-  // Repeat to enter JIT (when applicable).
-  for (int i = 0; i < 20; i++) {
-    // Constants.
-
-    doModConstants();
-    doModVarConstant();
-    doTruncDivConstants();
-
-    // Variable ranges.
-
-    acc = 0;
-    doModVars(3, 5, 2, 6);
-    Expect.equals(28, acc);
-
-    acc = 0;
-    doModVars((3 << 32) - 1, (3 << 32) + 1, (3 << 32) - 1, (3 << 32) + 1);
-    Expect.equals(38654705666, acc);
-
-    acc = 0;
-    doModVars(minInt32 - 4, minInt32 + 4, -11, -1);
-    Expect.equals(239, acc);
-
-    acc = 0;
-    doModVars(minInt32 - 4, minInt32 + 4, 2, 7);
-    Expect.equals(85, acc);
-
-    acc = 0;
-    doModVars(minInt32 - 4, minInt32 + 4, minInt32 - 4, minInt32 + 4);
-    Expect.equals(77309411268, acc);
-
-    acc = 0;
-    doModVars(minInt32 - 4, minInt32 + 4, maxInt32 - 4, maxInt32 + 4);
-    Expect.equals(96636763974, acc);
-
-    acc = 0;
-    doModVars(maxInt32 - 4, maxInt32 + 4, 2, 7);
-    Expect.equals(104, acc);
-
-    acc = 0;
-    doModVars(maxInt32 - 4, maxInt32 + 4, minInt32 - 4, minInt32 + 4);
-    Expect.equals(96636764139, acc);
-
-    acc = 0;
-    doModVars(maxInt32 - 4, maxInt32 + 4, maxInt32 - 4, maxInt32 + 4);
-    Expect.equals(77309411352, acc);
-
-    acc = 0;
-    doTruncDivVars(3, 5, 2, 6);
-    Expect.equals(11, acc);
-
-    acc = 0;
-    doTruncDivVars(-5, -3, 2, 6);
-    Expect.equals(-11, acc);
-
-    acc = 0;
-    doTruncDivVars(3, 5, -6, -2);
-    Expect.equals(-11, acc);
-
-    acc = 0;
-    doTruncDivVars(-5, -3, -6, -2);
-    Expect.equals(11, acc);
-
-    acc = 0;
-    doTruncDivVars((3 << 32) - 1, (3 << 32) + 1, 3, 6);
-    Expect.equals(36721970376, acc);
-
-    acc = 0;
-    doTruncDivVars(minInt64, minInt64, -1, -1);
-    Expect.equals(minInt64, acc);
-
-    acc = 0;
-    doTruncDivVars(minInt32 - 4, minInt32 + 4, -11, -1);
-    Expect.equals(58366234918, acc);
-
-    acc = 0;
-    doTruncDivVars(minInt32 - 4, minInt32 + 4, 2, 7);
-    Expect.equals(-30785711991, acc);
-
-    acc = 0;
-    doTruncDivVars(minInt32 - 4, minInt32 + 4, minInt32 - 4, minInt32 + 4);
-    Expect.equals(45, acc);
-
-    acc = 0;
-    doTruncDivVars(minInt32 - 4, minInt32 + 4, maxInt32 - 4, maxInt32 + 4);
-    Expect.equals(-53, acc);
-
-    acc = 0;
-    doTruncDivVars(maxInt32 - 4, maxInt32 + 4, 2, 7);
-    Expect.equals(30785711975, acc);
-
-    acc = 0;
-    doTruncDivVars(maxInt32 - 4, maxInt32 + 4, minInt32 - 4, minInt32 + 4);
-    Expect.equals(-36, acc);
-
-    acc = 0;
-    doTruncDivVars(maxInt32 - 4, maxInt32 + 4, maxInt32 - 4, maxInt32 + 4);
-    Expect.equals(45, acc);
-
-    acc = 0;
-    doTruncDivVars(maxInt32 - 4, maxInt32 + 4, 1, 7);
-    Expect.equals(50113064798, acc);
-
-    // Exceptions at the right time.
-
-    acc = 0;
-    try {
-      doModVars(9, 9, -9, 0);
-      acc = 0; // don't reach!
-    } on UnsupportedError catch (e, s) {}
-    Expect.equals(12, acc);
-
-    acc = 0;
-    try {
-      doTruncDivVars(9, 9, -9, 0);
-      acc = 0; // don't reach!
-    } on UnsupportedError catch (e, s) {}
-    Expect.equals(-23, acc);
-  }
-}
diff --git a/tests/language_2/vm/mult_int_test.dart b/tests/language_2/vm/mult_int_test.dart
deleted file mode 100644
index 83ff1aabf83..00000000000
--- a/tests/language_2/vm/mult_int_test.dart
+++ /dev/null
@@ -1,104 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--no_background_compilation --optimization_counter_threshold=10
-// VMOptions=--no_background_compilation --optimization_counter_threshold=10 --use_slow_path
-
-import "package:expect/expect.dart";
-
-// Tests for long multiplication under
-// 64-bit arithmetic wrap-around semantics.
-
-final int maxInt32 = 2147483647;
-final int minInt32 = -2147483648;
-final int maxInt64 = 0x7fffffffffffffff;
-final int minInt64 = 0x8000000000000000;
-
-int mul(int x, int y) {
-  return x * y;
-}
-
-doConstants() {
-  Expect.equals(0, mul(0, 0));
-  Expect.equals(0, mul(0, 7));
-  Expect.equals(0, mul(7, 0));
-  Expect.equals(1, mul(1, 1));
-  Expect.equals(7, mul(1, 7));
-  Expect.equals(7, mul(7, 1));
-  Expect.equals(21, mul(7, 3));
-  Expect.equals(21, mul(3, 7));
-
-  Expect.equals(21 << 32, mul(3 << 32, 7));
-  Expect.equals(21 << 32, mul(3, 7 << 32));
-  Expect.equals(0, mul(3 << 32, 7 << 32));
-
-  Expect.equals(0, mul(0, maxInt32));
-  Expect.equals(0, mul(maxInt32, 0));
-  Expect.equals(maxInt32, mul(1, maxInt32));
-  Expect.equals(maxInt32, mul(maxInt32, 1));
-  Expect.equals(maxInt32 + maxInt32, mul(2, maxInt32));
-
-  Expect.equals(0, mul(0, maxInt64));
-  Expect.equals(0, mul(maxInt64, 0));
-  Expect.equals(maxInt64, mul(1, maxInt64));
-  Expect.equals(maxInt64, mul(maxInt64, 1));
-  Expect.equals(-2, mul(2, maxInt64));
-
-  Expect.equals(0, mul(0, minInt32));
-  Expect.equals(0, mul(minInt32, 0));
-  Expect.equals(minInt32, mul(1, minInt32));
-  Expect.equals(minInt32, mul(minInt32, 1));
-  Expect.equals(minInt32 + minInt32, mul(2, minInt32));
-
-  Expect.equals(0, mul(0, minInt64));
-  Expect.equals(0, mul(minInt64, 0));
-  Expect.equals(minInt64, mul(1, minInt64));
-  Expect.equals(minInt64, mul(minInt64, 1));
-  Expect.equals(0, mul(2, minInt64));
-
-  Expect.equals(4611686014132420609, mul(maxInt32, maxInt32));
-  Expect.equals(-4611686016279904256, mul(maxInt32, minInt32));
-  Expect.equals(9223372034707292161, mul(maxInt32, maxInt64));
-  Expect.equals(minInt64, mul(maxInt32, minInt64));
-
-  Expect.equals(-4611686016279904256, mul(minInt32, maxInt32));
-  Expect.equals(4611686018427387904, mul(minInt32, minInt32));
-  Expect.equals(2147483648, mul(minInt32, maxInt64));
-  Expect.equals(0, mul(minInt32, minInt64));
-
-  Expect.equals(9223372034707292161, mul(maxInt64, maxInt32));
-  Expect.equals(2147483648, mul(maxInt64, minInt32));
-  Expect.equals(1, mul(maxInt64, maxInt64));
-  Expect.equals(minInt64, mul(maxInt64, minInt64));
-
-  Expect.equals(minInt64, mul(minInt64, maxInt32));
-  Expect.equals(0, mul(minInt64, minInt32));
-  Expect.equals(minInt64, mul(minInt64, maxInt64));
-  Expect.equals(0, mul(minInt64, minInt64));
-}
-
-doVars(int v) {
-  int e = v;
-  for (int i = 1; i < 256; i++) {
-    Expect.equals(e, mul(i, v));
-    Expect.equals(e, mul(v, i));
-    e += v;
-  }
-}
-
-main() {
-  // Repeat tests to enter JIT (when applicable).
-  for (int i = 0; i < 20; i++) {
-    doConstants();
-    doVars(1);
-    doVars(maxInt32);
-    doVars(minInt32);
-    doVars(7 << 32);
-    doVars(-(7 << 32));
-    doVars(maxInt64);
-    doVars(minInt64);
-  }
-}
diff --git a/tests/language_2/vm/negate_int_test.dart b/tests/language_2/vm/negate_int_test.dart
deleted file mode 100644
index 9ba3d9bf6d6..00000000000
--- a/tests/language_2/vm/negate_int_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--no_background_compilation --optimization_counter_threshold=10
-// VMOptions=--no_background_compilation --optimization_counter_threshold=10 --use_slow_path
-
-import "package:expect/expect.dart";
-
-// Tests for long negations under
-// 64-bit arithmetic wrap-around semantics.
-
-final int maxInt32 = 2147483647;
-final int minInt32 = -2147483648;
-final int maxInt64 = 0x7fffffffffffffff;
-final int minInt64 = 0x8000000000000000;
-
-int negate(int x) {
-  return -x;
-}
-
-doConstant() {
-  Expect.equals(1, negate(-1));
-  Expect.equals(0, negate(0));
-  Expect.equals(-1, negate(1));
-
-  Expect.equals(-maxInt32, negate(maxInt32));
-  Expect.equals(-minInt32, negate(minInt32));
-  Expect.equals(-maxInt64, negate(maxInt64));
-  Expect.equals(minInt64, negate(minInt64)); // sic!
-}
-
-doVar() {
-  int d = 0;
-  for (int i = -88; i < 10; i++) {
-    d += negate(i);
-  }
-  Expect.equals(3871, d);
-}
-
-main() {
-  // Repeat tests to enter JIT (when applicable).
-  for (int i = 0; i < 20; i++) {
-    doConstant();
-    doVar();
-  }
-}
diff --git a/tests/language_2/vm/no_such_args_error_message_vm_test.dart b/tests/language_2/vm/no_such_args_error_message_vm_test.dart
deleted file mode 100644
index 4242f8fe4e3..00000000000
--- a/tests/language_2/vm/no_such_args_error_message_vm_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=100 --no-use-osr --no-background-compilation
-// VMOptions=--optimization-counter-threshold=100 --no-use-osr --no-background-compilation --no-lazy-dispatchers
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test error message with misusing Functions and Closures: wrong args
-// should result in a message that reports the missing method.
-
-call_with_bar(x) => x("bar");
-
-testClosureMessage() {
-  try {
-    call_with_bar(() {});
-  } catch (e) {
-    // The latter may happen if in --dwarf-stack-traces mode.
-    final possibleNames = ['testClosureMessage', '<optimized out>'];
-    Expect.containsOneOf(
-        possibleNames.map((s) => s + '.<anonymous closure>("bar")'),
-        e.toString());
-  }
-}
-
-noargs() {}
-
-testFunctionMessage() {
-  try {
-    call_with_bar(noargs);
-  } catch (e) {
-    final expectedStrings = [
-      'Tried calling: noargs("bar")',
-    ];
-    Expect.stringContainsInOrder(e.toString(), expectedStrings);
-  }
-}
-
-main() {
-  for (var i = 0; i < 120; i++) testClosureMessage();
-  for (var i = 0; i < 120; i++) testFunctionMessage();
-}
diff --git a/tests/language_2/vm/no_such_method_error_message_callable_vm_test.dart b/tests/language_2/vm/no_such_method_error_message_callable_vm_test.dart
deleted file mode 100644
index a0723f76534..00000000000
--- a/tests/language_2/vm/no_such_method_error_message_callable_vm_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test error message with noSuchMethodError: nonexistent names
-// should result in a message that reports the missing method.
-
-class Callable {
-  call() {}
-}
-
-call_bar(x) => x.bar();
-call_with_bar(x) => x("bar");
-
-testMessageProp() {
-  try {
-    call_bar(new Callable());
-  } catch (e) {
-    Expect.isTrue(e.toString().contains("has no instance method 'bar'"));
-  }
-}
-
-testMessageCall() {
-  try {
-    call_with_bar(new Callable());
-  } catch (e) {
-    Expect.isTrue(e.toString().contains("has no instance method 'call'"));
-  }
-}
-
-main() {
-  for (var i = 0; i < 20; i++) testMessageProp();
-  for (var i = 0; i < 20; i++) testMessageCall();
-}
diff --git a/tests/language_2/vm/no_such_method_error_message_vm_test.dart b/tests/language_2/vm/no_such_method_error_message_vm_test.dart
deleted file mode 100644
index 498628074dc..00000000000
--- a/tests/language_2/vm/no_such_method_error_message_vm_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test error message with noSuchMethodError: nonexistent names
-// should result in a message that reports the missing method.
-
-call_bar(x) => x.bar();
-
-testMessage() {
-  try {
-    call_bar(5);
-  } catch (e) {
-    Expect.isTrue(e.toString().contains("has no instance method 'bar'"));
-  }
-}
-
-main() {
-  for (var i = 0; i < 20; i++) testMessage();
-}
diff --git a/tests/language_2/vm/null_hashcode_optimized_vm_test.dart b/tests/language_2/vm/null_hashcode_optimized_vm_test.dart
deleted file mode 100644
index bb2d0c71b67..00000000000
--- a/tests/language_2/vm/null_hashcode_optimized_vm_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test that optimized Object.hashCode works for the null receiver.
-// VMOptions=--optimization_counter_threshold=10 --no-background_compilation
-
-// @dart = 2.9
-
-main() {
-  for (int i = 0; i < 20; i++) {
-    foo(null);
-  }
-}
-
-foo(a) => a.hashCode;
diff --git a/tests/language_2/vm/optimization_test.dart b/tests/language_2/vm/optimization_test.dart
deleted file mode 100644
index 293a8209ad6..00000000000
--- a/tests/language_2/vm/optimization_test.dart
+++ /dev/null
@@ -1,102 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test various optimizations and deoptimizations of optimizing compiler..
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-addThem(a, b) {
-  return a + b;
-}
-
-isItInt(a) {
-  return a is int;
-}
-
-doNeg(a) {
-  return -a;
-}
-
-doNeg2(a) {
-  return -a;
-}
-
-doNot(a) {
-  return !a;
-}
-
-doBitNot(a) {
-  return ~a;
-}
-
-doStore1(a, v) {
-  a[1] = v;
-}
-
-doStore2(a, v) {
-  a[2] = v;
-}
-
-class StringPlus {
-  const StringPlus(String this._val);
-  operator +(right) => new StringPlus("${_val}${right}");
-  toString() => _val;
-
-  final String _val;
-}
-
-main() {
-  for (int i = 0; i < 20; i++) {
-    Expect.stringEquals("HI 5", addThem(const StringPlus("HI "), 5).toString());
-    Expect.equals(true, isItInt(5));
-  }
-  Expect.equals(8, addThem(3, 5));
-  for (int i = 0; i < 20; i++) {
-    Expect.stringEquals("HI 5", addThem(const StringPlus("HI "), 5).toString());
-    Expect.equals(8, addThem(3, 5));
-  }
-  for (int i = -10; i < 10; i++) {
-    var r = doNeg(i);
-    var p = doNeg(r);
-    Expect.equals(i, p);
-  }
-  var maxSmi = (1 << 30) - 1;
-  Expect.equals(maxSmi, doNeg(doNeg(maxSmi)));
-  // Deoptimize because of overflow.
-  var minInt = -(1 << 30);
-  Expect.equals(minInt, doNeg(doNeg(minInt)));
-
-  for (int i = 0; i < 20; i++) {
-    Expect.equals(false, doNot(true));
-    Expect.equals(true, doNot(doNot(true)));
-  }
-  for (int i = 0; i < 20; i++) {
-    Expect.equals(-57, doBitNot(56));
-    Expect.equals(55, doBitNot(-56));
-  }
-
-  for (int i = 0; i < 20; i++) {
-    Expect.equals(-2.2, doNeg2(2.2));
-  }
-  // Deoptimize.
-  Expect.equals(-5, doNeg2(5));
-
-  var fixed = new List<dynamic>.filled(10, null);
-  var growable = [1, 2, 3, 4, 5];
-
-  for (int i = 0; i < 20; i++) {
-    doStore1(fixed, 7);
-    Expect.equals(7, fixed[1]);
-    doStore2(growable, 12);
-    Expect.equals(12, growable[2]);
-  }
-
-  // Deoptimize.
-  doStore1(growable, 8);
-  Expect.equals(8, growable[1]);
-  doStore2(fixed, 101);
-  Expect.equals(101, fixed[2]);
-}
diff --git a/tests/language_2/vm/optimized_await_regress_test.dart b/tests/language_2/vm/optimized_await_regress_test.dart
deleted file mode 100644
index 9980578585a..00000000000
--- a/tests/language_2/vm/optimized_await_regress_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// This tests that captured parameters (by the async-closure) are
-// correctly treated in try-catch generated in the async function.
-// They must be skipped when generating sync-code in the optimized
-// try-block.
-
-import 'package:expect/expect.dart';
-
-import 'dart:async';
-
-fail() {
-  try {
-    Expect.isTrue(false);
-  } finally {}
-}
-
-foo(i) async {
-  var k = await 77;
-  var a = "abc${k}";
-  if (a != "abc77") fail();
-  return k;
-}
-
-main() {
-  for (int i = 0; i < 20; i++) {
-    foo(i).then((value) => Expect.equals(77, value));
-  }
-}
diff --git a/tests/language_2/vm/optimized_check_class_test.dart b/tests/language_2/vm/optimized_check_class_test.dart
deleted file mode 100644
index 61f1b8fc19b..00000000000
--- a/tests/language_2/vm/optimized_check_class_test.dart
+++ /dev/null
@@ -1,101 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test dense class-id checks. Regression test for issue 22104.
-
-class A {
-  toString() => "an A";
-}
-
-class A1 extends A {}
-
-class A2 extends A {}
-
-class A3 extends A {}
-
-class A4 extends A {
-  toString() => "ha";
-}
-
-class A5 extends A {}
-
-class A6 extends A {}
-
-class A7 extends A {}
-
-class A8 extends A {}
-
-class A9 extends A {}
-
-class A10 extends A {}
-
-class A11 extends A {}
-
-class A12 extends A {}
-
-class A13 extends A {}
-
-class A14 extends A {}
-
-class A15 extends A {}
-
-class A16 extends A {}
-
-class A17 extends A {}
-
-class A18 extends A {}
-
-class A19 extends A {}
-
-class A20 extends A {}
-
-class A21 extends A {}
-
-class A22 extends A {}
-
-class A23 extends A {}
-
-class A24 extends A {}
-
-class A25 extends A {}
-
-class A26 extends A {}
-
-class A27 extends A {}
-
-class A28 extends A {}
-
-class A29 extends A {}
-
-class A30 extends A {}
-
-class A31 extends A {}
-
-class A32 extends A {}
-
-class A33 extends A {}
-
-class A34 extends A {}
-
-class A35 extends A {}
-
-class A36 extends A {}
-
-test_class_check(e) => e.toString();
-
-main() {
-  var list = [new A1(), new A2(), new A11(), new A36()];
-  for (var i = 0; i < list.length; i++) {
-    test_class_check(list[i]);
-  }
-  for (var i = 0; i < 100; i++) {
-    Expect.equals("an A", test_class_check(new A1()));
-  }
-  Expect.equals("ha", test_class_check(new A4()));
-}
diff --git a/tests/language_2/vm/optimized_guarded_field_isolates_test.dart b/tests/language_2/vm/optimized_guarded_field_isolates_test.dart
deleted file mode 100644
index ed022372861..00000000000
--- a/tests/language_2/vm/optimized_guarded_field_isolates_test.dart
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--optimization_counter_threshold=100 --no-background_compilation
-
-// Test field type tracking and field list-length tracking in the presence of
-// multiple isolates.
-
-import "dart:isolate";
-import "dart:async";
-import "package:expect/expect.dart";
-import 'package:async_helper/async_helper.dart';
-
-class A {
-  A(this.a);
-  var a;
-}
-
-class B extends A {
-  B(a, this.b) : super(a) {}
-
-  var b;
-}
-
-f1(Object send_port) {
-  (send_port as SendPort).send(new B("foo", "bar"));
-}
-
-test_b(B obj) => obj.a + obj.b;
-
-test_field_type() {
-  var receive_port = new ReceivePort();
-  asyncStart();
-  Future<Isolate> isolate = Isolate.spawn(f1, receive_port.sendPort);
-  B b = new B(1, 2);
-  for (var i = 0; i < 200; i++) {
-    test_b(b);
-  }
-  Expect.equals(3, test_b(b));
-  Future item = receive_port.first;
-  item.then((value) {
-    Expect.equals("foobar", test_b(value as B));
-    receive_port.close();
-    asyncEnd();
-  });
-}
-
-class C {
-  C(this.list);
-  final List list;
-}
-
-f2(Object send_port) {
-  (send_port as SendPort).send(new C(new List.filled(1, null)));
-}
-
-test_c(C obj) => obj.list[9999];
-
-test_list_length() {
-  var receive_port = new ReceivePort();
-  asyncStart();
-  Future<Isolate> isolate = Isolate.spawn(f2, receive_port.sendPort);
-  C c = new C(new List.filled(10000, null));
-  for (var i = 0; i < 200; i++) {
-    test_c(c);
-  }
-  Expect.equals(null, test_c(c));
-  Future item = receive_port.first;
-  item.then((value) {
-    Expect.throwsRangeError(() => test_c(value as C));
-    receive_port.close();
-    asyncEnd();
-  });
-}
-
-main() {
-  test_field_type();
-  test_list_length();
-}
diff --git a/tests/language_2/vm/optimized_guarded_field_test.dart b/tests/language_2/vm/optimized_guarded_field_test.dart
deleted file mode 100644
index 4f9d733312e..00000000000
--- a/tests/language_2/vm/optimized_guarded_field_test.dart
+++ /dev/null
@@ -1,102 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test correct handling of phis with only environment uses that were inserted
-// by store to load forwarding.
-// VMOptions=--optimization_counter_threshold=10 --no-background_compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "dart:typed_data";
-
-class A {
-  var foo;
-}
-
-class B {
-  get foo => null;
-}
-
-test(obj) => obj.foo == null ? "null" : "other";
-
-class C {
-  C(this.x, this.y);
-  final x;
-  final y;
-}
-
-test_deopt(a, b) {
-  var c = new C(a, b);
-  return c.x + c.y;
-}
-
-create_error(x) {
-  return x as int;
-}
-
-check_stacktrace(e) {
-  var s = e.stackTrace;
-  if (identical(s, null)) throw "FAIL";
-  // s should never be null.
-  return "OK";
-}
-
-test_stacktrace() {
-  try {
-    create_error("bar");
-  } catch (e) {
-    Expect.equals("OK", check_stacktrace(e));
-    for (var i = 0; i < 20; i++) {
-      check_stacktrace(e);
-    }
-    Expect.equals("OK", check_stacktrace(e));
-  }
-}
-
-class D {
-  final List f;
-  final Uint8List g;
-  D(this.f, this.g);
-  D.named(this.f, this.g);
-}
-
-test_guarded_length() {
-  var a = new D(new List.filled(5, null), new Uint8List(5));
-  var b = new D.named(new List.filled(5, null), new Uint8List(5));
-  Expect.equals(5, a.f.length);
-  Expect.equals(5, b.f.length);
-  Expect.equals(5, a.g.length);
-  Expect.equals(5, b.g.length);
-}
-
-main() {
-  var a = new A();
-  var b = new B();
-  // Trigger optimization of test with a polymorphic load.
-  // The guarded type of foo is null.
-  test(a);
-  test(b);
-  for (var i = 0; i < 20; ++i) test(a);
-  Expect.equals("null", test(a));
-  Expect.equals("null", test(b));
-
-  // Store a non-null object into foo to trigger deoptimization of test.
-  a.foo = 123;
-  Expect.equals("other", test(a));
-  Expect.equals("null", test(b));
-
-  // Test guarded fields with allocation sinking and deoptimization.
-  Expect.equals(43, test_deopt(42, 1));
-  for (var i = 0; i < 20; i++) {
-    test_deopt(42, 1);
-  }
-  Expect.equals(43, test_deopt(42, 1));
-  Expect.equals("aaabbb", test_deopt("aaa", "bbb"));
-
-  // Regression test for fields initialized in native code (Error._stackTrace).
-  test_stacktrace();
-
-  // Test guarded list length.
-  for (var i = 0; i < 20; i++) test_guarded_length();
-}
diff --git a/tests/language_2/vm/optimized_identical_test.dart b/tests/language_2/vm/optimized_identical_test.dart
deleted file mode 100644
index 3de4723a0f5..00000000000
--- a/tests/language_2/vm/optimized_identical_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test various optimizations and deoptimizations of optimizing compiler..
-// VMOptions=--optimization-counter-threshold=10 --no-constant-propagation --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test canonicalization of identical with double input.
-// Constant propagation is disabled so that canonicalization is run
-// one time less than usual.
-
-test(a) {
-  var dbl = a + 1.0;
-  if (!identical(dbl, true)) {
-    return "ok";
-  }
-  throw "fail";
-}
-
-Object Y = 1.0;
-
-test_object_type(x) => identical(x, Y);
-
-main() {
-  for (var i = 0; i < 20; i++) test(0);
-  Expect.equals("ok", test(0));
-
-  var x = 0.0 + 1.0;
-  for (var i = 0; i < 20; i++) test_object_type(x);
-  Expect.equals(true, test_object_type(x));
-}
diff --git a/tests/language_2/vm/optimized_list_constructor_test.dart b/tests/language_2/vm/optimized_list_constructor_test.dart
deleted file mode 100644
index 89cfea15fa9..00000000000
--- a/tests/language_2/vm/optimized_list_constructor_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test various optimizations and deoptimizations of optimizing compiler..
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test correct throwing of ArgumentError in optimized code.
-
-test() {
-  try {
-    var r = new List<int>.filled(-1, null);
-    Expect.isTrue(false); // Unreachable.
-  } on RangeError {
-    return true;
-  }
-  Expect.isTrue(false); // Unreachable.
-}
-
-main() {
-  for (var i = 0; i < 20; i++) {
-    Expect.isTrue(test());
-  }
-}
diff --git a/tests/language_2/vm/optimized_polymorphic_list_access_test.dart b/tests/language_2/vm/optimized_polymorphic_list_access_test.dart
deleted file mode 100644
index 1137d4eb441..00000000000
--- a/tests/language_2/vm/optimized_polymorphic_list_access_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization_counter_threshold=10 --no-background_compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test correct polymorphic inlining of recognized methods like list access.
-
-test(arr) {
-  var r = 0;
-  for (var i = 0; i < 1; ++i) {
-    r += arr[0];
-  }
-  return r;
-}
-
-main() {
-  var a = new List<int>.filled(1, null);
-  a[0] = 0;
-  var b = <int>[0];
-  Expect.equals(0, test(a));
-  Expect.equals(0, test(b));
-  for (var i = 0; i < 20; ++i) test(a);
-  Expect.equals(0, test(a));
-  Expect.equals(0, test(b));
-}
diff --git a/tests/language_2/vm/optimized_shl_test.dart b/tests/language_2/vm/optimized_shl_test.dart
deleted file mode 100644
index db1014ed7ea..00000000000
--- a/tests/language_2/vm/optimized_shl_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test truncating left-shift that can deoptimize.
-// Regression test for issue 19330.
-
-test_shl(w, x) {
-  x += 1;
-  return w << x & 0xff;
-}
-
-main() {
-  for (var i = 0; i < 20; i++) test_shl(i, i % 10);
-  Expect.equals(4, test_shl(1, 1));
-}
diff --git a/tests/language_2/vm/optimized_stacktrace_test.dart b/tests/language_2/vm/optimized_stacktrace_test.dart
deleted file mode 100644
index 6fd02e66e44..00000000000
--- a/tests/language_2/vm/optimized_stacktrace_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--stacktrace-every=3 --optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-// Test generating stacktraces with inlining and deferred code.
-// Regression test for issue dartbug.com/22331
-
-class A {
-  final N;
-  final inc;
-  var next;
-  A(this.N, this.inc) {
-    next = this;
-  }
-}
-
-foo(o, value) {
-  for (var i = 0; i < o.N; i += o.inc) {
-    if (value < i) {
-      throw "";
-    }
-    o = o.next;
-  }
-  return value;
-}
-
-@pragma('vm:never-inline')
-baz(x, y, z) => z;
-
-bar(o) {
-  var value = 0x100000000 + o.inc;
-  baz(0, 0, foo(o, value));
-}
-
-main() {
-  var o = new A(10, 1);
-  for (var i = 0; i < 100; i++) bar(o);
-  bar(new A(100000, 1));
-}
diff --git a/tests/language_2/vm/optimized_testsmi_test.dart b/tests/language_2/vm/optimized_testsmi_test.dart
deleted file mode 100644
index 124afc8eeca..00000000000
--- a/tests/language_2/vm/optimized_testsmi_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization_counter_threshold=10 --no-background_compilation
-
-// @dart = 2.9
-
-// Test branch optimization for TestSmiInstr
-
-import "package:expect/expect.dart";
-
-test1(a, bool b) {
-  if (b) {
-    a++;
-  } else {
-    a += 2;
-  }
-  if (a & 1 == 0) {
-    return "even";
-  }
-  return "odd";
-}
-
-test2(a, bool b) {
-  if (b) {
-    a++;
-  } else {
-    a += 2;
-  }
-  if (a & 1 == 1) {
-    return "odd";
-  }
-  return "even";
-}
-
-test3(a, bool b) {
-  return test1(0, b);
-}
-
-test4(a, bool b) {
-  return test2(0, b);
-}
-
-run(test) {
-  Expect.equals("odd", test(0, true));
-  Expect.equals("even", test(0, false));
-  for (var i = 0; i < 20; i++) test(0, false);
-  Expect.equals("odd", test(0, true));
-  Expect.equals("even", test(0, false));
-}
-
-main() {
-  run(test1);
-  run(test2);
-  run(test3);
-  run(test4);
-}
diff --git a/tests/language_2/vm/optimized_try_catch_cha_test.dart b/tests/language_2/vm/optimized_try_catch_cha_test.dart
deleted file mode 100644
index 8cbbc791fff..00000000000
--- a/tests/language_2/vm/optimized_try_catch_cha_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization_counter_threshold=100 --no-use-osr --no-background_compilation
-
-// @dart = 2.9
-
-// Test CHA-based optimizations in presence of try-catch.
-
-import "package:expect/expect.dart";
-
-bar(i) {
-  if (i == 11) throw 123;
-}
-
-class A {
-  var f = 42;
-
-  foo(i) {
-    do {
-      try {
-        bar(i);
-      } catch (e, s) {
-        Expect.equals(123, e);
-      }
-    } while (i < 0);
-    return f;
-  }
-}
-
-class B extends A {}
-
-main() {
-  var result;
-  for (var i = 0; i < 200; i++) {
-    try {
-      result = new B().foo(i);
-    } catch (e) {}
-  }
-  Expect.equals(42, result);
-}
diff --git a/tests/language_2/vm/optimized_unique_selector_test.dart b/tests/language_2/vm/optimized_unique_selector_test.dart
deleted file mode 100644
index e40f27ffd77..00000000000
--- a/tests/language_2/vm/optimized_unique_selector_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  _uniqueSelector() {}
-  final uniqueField = 10;
-}
-
-test1(obj) {
-  var res = 0;
-  for (var i = 0; i < 2; i++) {
-    obj._uniqueSelector();
-    res += obj.uniqueField; // This load must not be hoisted out of the loop.
-  }
-  return res;
-}
-
-test2(obj) {
-  final objAlias = obj;
-  closure() => objAlias;
-  var res = 0;
-  for (var i = 0; i < 2; i++) {
-    obj._uniqueSelector();
-    res +=
-        objAlias.uniqueField; // This load must not be hoisted out of the loop.
-  }
-  return res;
-}
-
-var foofoo_ = test1;
-
-main() {
-  Expect.equals(20, foofoo_(new A()));
-  Expect.throws(() => foofoo_(0));
-
-  foofoo_ = test2;
-
-  Expect.equals(20, foofoo_(new A()));
-  Expect.throws(() => foofoo_(0));
-}
diff --git a/tests/language_2/vm/osr_nonempty_stack_test.dart b/tests/language_2/vm/osr_nonempty_stack_test.dart
deleted file mode 100644
index 9f1407675a9..00000000000
--- a/tests/language_2/vm/osr_nonempty_stack_test.dart
+++ /dev/null
@@ -1,151 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test with OSR on non-empty stack (block expression).
-
-import 'dart:core';
-import "package:expect/expect.dart";
-
-class Z {
-  @pragma('vm:never-inline')
-  check(int a, int b, String c, List<int> d) {
-    Expect.equals(a, 42);
-    Expect.equals(b, global_bazz);
-    Expect.equals(c, 'abc');
-    return d;
-  }
-}
-
-Z z = new Z();
-int global_bazz = 123;
-int global_more_bazz = 456;
-
-@pragma('vm:never-inline')
-int bazz() {
-  return ++global_bazz;
-}
-
-@pragma('vm:never-inline')
-int more_bazz() {
-  return ++global_more_bazz;
-}
-
-@pragma('vm:never-inline')
-int bar(int i) {
-  return i - 1;
-}
-
-@pragma('vm:never-inline')
-List<int> spread(int v, List<int> x) {
-  return [v, ...x];
-}
-
-// Long running control-flow collection (block expression),
-// leaves the stack non-empty during a potential OSR.
-@pragma('vm:never-inline')
-List<int> test1(int n) {
-  return spread(more_bazz(), [for (int i = 0; i < n; i++) i]);
-}
-
-// Long running control-flow collection (block expression) inside outer
-// loop, leaves the stack non-empty during a potential OSR.
-List<int> test2(int n) {
-  List<int> x = [];
-  for (int k = 0; k < 10; k++) {
-    x += spread(more_bazz(), [for (int i = 0; i < n; i++) i]);
-  }
-  return x;
-}
-
-// Long running control-flow collection (block expression) inside two
-// outer loops, leaves the stack non-empty during a potential OSR.
-List<int> test3(int n) {
-  List<int> x = [];
-  for (int k = 0; k < 4; k++) {
-    for (int j = 0; j < 4; j++) {
-      x += spread(more_bazz(), [for (int i = 0; i < n; i++) i]);
-    }
-  }
-  return x;
-}
-
-// Long running control-flow collection (block expression),
-// leaves the stack non-empty during a potential OSR.
-@pragma('vm:never-inline')
-List<int> test4(int n) {
-  var x = [10] +
-      z.check(42, bazz(), 'abc',
-          [more_bazz(), for (int i = 0; i < n; i++) bar(2 * i)]);
-  return x;
-}
-
-// Long running control-flow collection (block expression) inside outer
-// loop, also leaves the stack non-empty during a potential OSR.
-@pragma('vm:never-inline')
-List<int> test5(int m, int n) {
-  List<int> x = [];
-  for (int k = 0; k < m; k++) {
-    x += [10] +
-        z.check(42, bazz(), 'abc',
-            [more_bazz(), for (int i = 0; i < n; i++) bar(2 * i)]);
-  }
-  return x;
-}
-
-List<int> globalList = [
-  1,
-  for (int loc1 = 2; loc1 <= 100000; loc1++) loc1,
-  100001
-];
-
-main() {
-  int n = 20000;
-  int g = 457;
-
-  var a = test1(n);
-  Expect.equals(a.length, n + 1);
-  for (int k = 0; k < n + 1; k++) {
-    int expect = (k == 0) ? g++ : k - 1;
-    Expect.equals(a[k], expect);
-  }
-
-  var b = test2(n);
-  Expect.equals(b.length, 10 * (n + 1));
-  for (int i = 0, k = 0; i < 10 * (n + 1); i++) {
-    int expect = (k == 0) ? g++ : k - 1;
-    Expect.equals(b[i], expect);
-    if (++k == (n + 1)) k = 0;
-  }
-
-  var c = test3(n);
-  Expect.equals(c.length, 16 * (n + 1));
-  for (int i = 0, k = 0; i < 16 * (n + 1); i++) {
-    int expect = (k == 0) ? g++ : k - 1;
-    Expect.equals(c[i], expect);
-    if (++k == (n + 1)) k = 0;
-  }
-
-  var d = test4(n);
-  Expect.equals(d.length, n + 2);
-  for (int k = 0; k < n + 2; k++) {
-    int expect = k <= 1 ? ((k == 0) ? 10 : g++) : -5 + 2 * k;
-    Expect.equals(d[k], expect);
-  }
-
-  var e = test5(10, n);
-  Expect.equals(e.length, 10 * (n + 2));
-  for (int i = 0, k = 0; i < 10 * (n + 2); i++) {
-    int expect = k <= 1 ? ((k == 0) ? 10 : g++) : -5 + 2 * k;
-    Expect.equals(e[i], expect);
-    if (++k == (n + 2)) k = 0;
-  }
-
-  Expect.isTrue(globalList != null);
-  Expect.equals(100001, globalList.length);
-  for (int i = 0; i < globalList.length; i++) {
-    Expect.equals(globalList[i], i + 1);
-  }
-}
diff --git a/tests/language_2/vm/plus_null_37719_test.dart b/tests/language_2/vm/plus_null_37719_test.dart
deleted file mode 100755
index 68f845f3101..00000000000
--- a/tests/language_2/vm/plus_null_37719_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--deterministic
-
-import "package:expect/expect.dart";
-
-@pragma("vm:never-inline")
-foo(List<int> x) => x[1] + x[0];
-
-@pragma("vm:never-inline")
-bar(List<int> x) => 1 + x[0];
-
-@pragma("vm:never-inline")
-baz(List<int> x) => x[0] + 2;
-
-main() {
-  var x = new List<int>.filled(2, null);
-
-  // Only first is null.
-  x[0] = null;
-  x[1] = 123;
-  try {
-    foo(x);
-  } on NoSuchMethodError catch (e) {
-    ;
-  }
-  try {
-    bar(x);
-  } on NoSuchMethodError catch (e) {
-    ;
-  }
-  try {
-    baz(x);
-  } on NoSuchMethodError catch (e) {
-    ;
-  }
-
-  // Only second is null.
-  x[0] = 456;
-  x[1] = null;
-  try {
-    foo(x);
-  } on NoSuchMethodError catch (e) {
-    ;
-  }
-  Expect.equals(457, bar(x));
-  Expect.equals(458, baz(x));
-
-  // Neither is null.
-  x[0] = 789;
-  x[1] = -1;
-  Expect.equals(788, foo(x));
-  Expect.equals(790, bar(x));
-  Expect.equals(791, baz(x));
-}
diff --git a/tests/language_2/vm/power_int_test.dart b/tests/language_2/vm/power_int_test.dart
deleted file mode 100644
index bc3fcc9ecca..00000000000
--- a/tests/language_2/vm/power_int_test.dart
+++ /dev/null
@@ -1,193 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:math';
-
-final int maxInt32 = 2147483647;
-final int minInt32 = -2147483648;
-
-doZeros() {
-  Expect.equals(1, pow(0, 0));
-  Expect.equals(0, pow(0, 1));
-  Expect.equals(0, pow(0, 2));
-  Expect.equals(0, pow(0, 3));
-  Expect.equals(0, pow(0, 4));
-  Expect.equals(0, pow(0, 5));
-  Expect.equals(0, pow(0, 45));
-  Expect.equals(0, pow(0, maxInt32 - 1));
-  Expect.equals(0, pow(0, maxInt32));
-
-  Expect.equals(double.infinity, pow(0, -1));
-  Expect.equals(double.infinity, pow(0, -2));
-  Expect.equals(double.infinity, pow(0, minInt32));
-}
-
-doOnes() {
-  Expect.equals(1, pow(1, 0));
-  Expect.equals(1, pow(1, 1));
-  Expect.equals(1, pow(1, 2));
-  Expect.equals(1, pow(1, 3));
-  Expect.equals(1, pow(1, 4));
-  Expect.equals(1, pow(1, 5));
-  Expect.equals(1, pow(1, 45));
-  Expect.equals(1, pow(1, maxInt32 - 1));
-  Expect.equals(1, pow(1, maxInt32));
-
-  Expect.equals(1.0, pow(1, -1));
-  Expect.equals(1.0, pow(1, -2));
-  Expect.equals(1.0, pow(1, minInt32));
-}
-
-doMinOnes() {
-  Expect.equals(1, pow(-1, 0));
-  Expect.equals(-1, pow(-1, 1));
-  Expect.equals(1, pow(-1, 2));
-  Expect.equals(-1, pow(-1, 3));
-  Expect.equals(1, pow(-1, 4));
-  Expect.equals(-1, pow(-1, 5));
-  Expect.equals(-1, pow(-1, 45));
-  Expect.equals(1, pow(-1, maxInt32 - 1));
-  Expect.equals(-1, pow(-1, maxInt32));
-
-  Expect.equals(-1.0, pow(-1, -1));
-  Expect.equals(1.0, pow(-1, -2));
-  Expect.equals(1.0, pow(-1, minInt32));
-}
-
-doTwos() {
-  Expect.equals(1, pow(2, 0));
-  Expect.equals(2, pow(2, 1));
-  Expect.equals(4, pow(2, 2));
-  Expect.equals(8, pow(2, 3));
-  Expect.equals(16, pow(2, 4));
-  Expect.equals(32, pow(2, 5));
-  Expect.equals(32768, pow(2, 15));
-  Expect.equals(65536, pow(2, 16));
-  Expect.equals(35184372088832, pow(2, 45));
-  Expect.equals(0, pow(2, maxInt32 - 1));
-  Expect.equals(0, pow(2, maxInt32));
-
-  Expect.equals(0.5, pow(2, -1));
-  Expect.equals(0.25, pow(2, -2));
-  Expect.equals(0.0, pow(2, minInt32));
-}
-
-doMinTwos() {
-  Expect.equals(1, pow(-2, 0));
-  Expect.equals(-2, pow(-2, 1));
-  Expect.equals(4, pow(-2, 2));
-  Expect.equals(-8, pow(-2, 3));
-  Expect.equals(16, pow(-2, 4));
-  Expect.equals(-32, pow(-2, 5));
-  Expect.equals(-32768, pow(-2, 15));
-  Expect.equals(65536, pow(-2, 16));
-  Expect.equals(-35184372088832, pow(-2, 45));
-  Expect.equals(0, pow(-2, maxInt32 - 1));
-  Expect.equals(0, pow(-2, maxInt32));
-
-  Expect.equals(-0.5, pow(-2, -1));
-  Expect.equals(0.25, pow(-2, -2));
-  Expect.equals(0.0, pow(-2, minInt32));
-}
-
-doVar0() {
-  int d = 0;
-  for (int i = -10; i < 10; i++) {
-    d += pow(i, 0);
-  }
-  Expect.equals(20, d);
-}
-
-doVar1() {
-  int d = 0;
-  for (int i = -10; i < 10; i++) {
-    d += pow(i, 1);
-  }
-  Expect.equals(-10, d);
-}
-
-doVar2() {
-  int d = 0;
-  for (int i = -10; i < 10; i++) {
-    d += pow(i, 2);
-  }
-  Expect.equals(670, d);
-}
-
-doVar3() {
-  int d = 0;
-  for (int i = -10; i < 10; i++) {
-    d += pow(i, 3);
-  }
-  Expect.equals(-1000, d);
-}
-
-doVar4() {
-  int d = 0;
-  for (int i = -10; i < 10; i++) {
-    d += pow(i, 4);
-  }
-  Expect.equals(40666, d);
-}
-
-doVar5() {
-  int d = 0;
-  for (int i = -10; i < 10; i++) {
-    d += pow(i, 5);
-  }
-  Expect.equals(-100000, d);
-}
-
-doVarMax() {
-  int d = 0;
-  for (int i = -5; i < 10; i++) {
-    d += pow(i, maxInt32);
-  }
-  Expect.equals(1786231423019973616, d);
-}
-
-doVarZeroes() {
-  int d = 0;
-  for (int i = 0; i < 10; i++) {
-    d += pow(0, i);
-  }
-  Expect.equals(1, d);
-}
-
-doVarOnes() {
-  int d = 0;
-  for (int i = 0; i < 10; i++) {
-    d += pow(1, i);
-  }
-  Expect.equals(10, d);
-}
-
-doVarTwos() {
-  int d = 0;
-  for (int i = 0; i < 10; i++) {
-    d += pow(2, i);
-  }
-  Expect.equals(1023, d);
-}
-
-main() {
-  doZeros();
-  doOnes();
-  doMinOnes();
-  doTwos();
-  doMinTwos();
-  doVar0();
-  doVar1();
-  doVar2();
-  doVar3();
-  doVar4();
-  doVar5();
-  doVarMax();
-  doVarZeroes();
-  doVarOnes();
-  doVarTwos();
-}
diff --git a/tests/language_2/vm/precompiled_static_initializer_test.dart b/tests/language_2/vm/precompiled_static_initializer_test.dart
deleted file mode 100644
index 0bbac2720f0..00000000000
--- a/tests/language_2/vm/precompiled_static_initializer_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test optimizations with static fields with precompilation.
-// VMOptions=--inlining-hotness=0
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-init() => 123;
-
-final a = init();
-
-main() {
-  var s = 0;
-  for (var i = 0; i < 10; i++) {
-    s += a;
-  }
-  Expect.equals(10 * 123, s);
-}
diff --git a/tests/language_2/vm/reflect_core_vm_test.dart b/tests/language_2/vm/reflect_core_vm_test.dart
deleted file mode 100644
index 16dc279d585..00000000000
--- a/tests/language_2/vm/reflect_core_vm_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test reflection of private functions in core classes.
-
-import "package:expect/expect.dart";
-import "dart:mirrors";
-
-main() {
-  var s = "string";
-  var im = reflect(s);
-  Expect.throwsNoSuchMethodError(() =>
-      im.invoke(MirrorSystem.getSymbol("_setAt", im.type.owner), [0, 65]));
-}
diff --git a/tests/language_2/vm/regress_14903_test.dart b/tests/language_2/vm/regress_14903_test.dart
deleted file mode 100644
index 342fb23c100..00000000000
--- a/tests/language_2/vm/regress_14903_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10  --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Test identical comparisons in optimized code. Registers must be preserved
-// when calling the runtime.
-
-cmp(a, b, c) {
-  var v = c + 1;
-  var w = v + 1;
-  var x = w + 1;
-  var y = x + 1;
-  var z = y + 1;
-  if (identical(a, b)) {
-    c++;
-  }
-  return c + v + w + x + y + z;
-}
-
-main() {
-  var str = "abc";
-  var before = cmp(str, str, 0);
-  Expect.equals(16, before);
-  for (var i = 0; i < 20; i++) cmp(str, str, 0);
-  Expect.equals(before, cmp(str, str, 0));
-}
diff --git a/tests/language_2/vm/regress_16873_test.dart b/tests/language_2/vm/regress_16873_test.dart
deleted file mode 100644
index 7a6fd546d1a..00000000000
--- a/tests/language_2/vm/regress_16873_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--new_gen_semi_max_size=1 --no_inline_alloc
-
-// @dart = 2.9
-
-// Regression test for slow-path allocation in the allocation stub.
-
-library map_test;
-
-import 'dart:collection';
-
-void testCollection(var collection, n) {
-  for (int i = 0; i < n; i++) {
-    if (i % 1000 == 0) print(i);
-    collection.add(i);
-  }
-}
-
-main() {
-  const int N = 100000;
-  testCollection(new LinkedHashSet(), N);
-}
diff --git a/tests/language_2/vm/regress_21245_test.dart b/tests/language_2/vm/regress_21245_test.dart
deleted file mode 100644
index a2e4d55db10..00000000000
--- a/tests/language_2/vm/regress_21245_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization_counter_threshold=10 --no-use-osr --no-background_compilation
-
-// @dart = 2.9
-
-test(a) {
-  var e;
-  for (var i = 0; i < a.length; i++) {
-    e = a[i];
-    for (var j = 0; j < i; j++) {
-      e = a[j];
-    }
-  }
-  return e;
-}
-
-main() {
-  var a = [0, 1, 2, 3, 4, 5];
-  for (var i = 0; i < 20; i++) {
-    test(a);
-  }
-}
diff --git a/tests/language_2/vm/regress_22480_test.dart b/tests/language_2/vm/regress_22480_test.dart
deleted file mode 100644
index ba5e2689017..00000000000
--- a/tests/language_2/vm/regress_22480_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization_counter_threshold=10 --no-background_compilation
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-test(j) {
-  var result = true;
-  j++;
-  for (var i = 0; i < 100; i++) {
-    result = (i < 50 || j < (1 << 32)) && result;
-  }
-  return result;
-}
-
-main() {
-  Expect.isTrue(test(30));
-}
diff --git a/tests/language_2/vm/regress_22541_vm_test.dart b/tests/language_2/vm/regress_22541_vm_test.dart
deleted file mode 100644
index 671a15fa2d0..00000000000
--- a/tests/language_2/vm/regress_22541_vm_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test range inference for multiplication of two negative values.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-test(a) {
-  var x = a ? -1 : -2;
-  if (0 < (x * x)) {
-    return "ok";
-  } else {
-    return "fail";
-  }
-}
-
-main() {
-  for (var j = 0; j < 20; j++) {
-    Expect.equals("ok", test(false));
-  }
-}
diff --git a/tests/language_2/vm/regress_22621_vm_test.dart b/tests/language_2/vm/regress_22621_vm_test.dart
deleted file mode 100644
index 38017503eaa..00000000000
--- a/tests/language_2/vm/regress_22621_vm_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test that BoxAllocationSlowPath for Mint emits stackmap in unoptimized code.
-// VMOptions=--inline_alloc=false
-
-// @dart = 2.9
-
-main() {
-  var re = new RegExp(r"IsolateStubs (.*)");
-  return re.firstMatch("oooo");
-}
diff --git a/tests/language_2/vm/regress_22693_vm_test.dart b/tests/language_2/vm/regress_22693_vm_test.dart
deleted file mode 100644
index 74a5b6bfc3e..00000000000
--- a/tests/language_2/vm/regress_22693_vm_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test location summary for Uint32 multiplication.
-// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
-
-// @dart = 2.9
-
-const MASK = 0xFFFFFFFF;
-
-uint32Mul(x, y) => (x * y) & MASK;
-
-main() {
-  for (var i = 0; i < 20; i++) uint32Mul((1 << 63) - 1, 1);
-}
diff --git a/tests/language_2/vm/regress_23117_vm_test.dart b/tests/language_2/vm/regress_23117_vm_test.dart
deleted file mode 100644
index 255c12cdd1b..00000000000
--- a/tests/language_2/vm/regress_23117_vm_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test location summary for Uint32 multiplication.
-// VMOptions=--optimization-counter-threshold=20 --no-background-compilation
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-mintLeftShift(x, y) => x << y;
-mintRightShift(x, y) => x >> y;
-
-main() {
-  for (var i = 0; i < 25; i++) {
-    var x = 1 + (1 << (i + 32));
-    Expect.equals(x, mintLeftShift(x, 0));
-    Expect.equals(x, mintRightShift(x, 0));
-    Expect.equals(2 * x, mintLeftShift(x, 1));
-    Expect.equals(x ~/ 2, mintRightShift(x, 1));
-    Expect.equals((i >= 16) ? 1 : x, mintRightShift(mintLeftShift(x, i), i));
-  }
-}
diff --git a/tests/language_2/vm/regress_23238_test.dart b/tests/language_2/vm/regress_23238_test.dart
deleted file mode 100644
index d11494f76ef..00000000000
--- a/tests/language_2/vm/regress_23238_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void main() {
-  int x = 327680;
-  int r = 65536;
-  for (var i = 0; i < 200; i++) {
-    Expect.equals(r, x ~/ 5);
-    x *= 10;
-    r *= 10;
-
-    if (x < 0) {
-      // Overflow.
-      break;
-    }
-  }
-}
diff --git a/tests/language_2/vm/regress_24517_test.dart b/tests/language_2/vm/regress_24517_test.dart
deleted file mode 100644
index c9e4dea0139..00000000000
--- a/tests/language_2/vm/regress_24517_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--no-intrinsify
-
-// Test that math runtime function (non-intrinsified) produce the expected
-// result and don't deviate due to double-rounding when using 80-bit FP ops.
-
-import "dart:math";
-import "package:expect/expect.dart";
-
-main() {
-  var x = 2.028240960366921e+31;
-  Expect.equals(4503599627372443.0, sqrt(x));
-}
diff --git a/tests/language_2/vm/regress_27671_other.dart b/tests/language_2/vm/regress_27671_other.dart
deleted file mode 100644
index e21d7423851..00000000000
--- a/tests/language_2/vm/regress_27671_other.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'regress_27671_test.dart';
-
-@pragma('vm:prefer-inline')
-void check(f, x) {
-  assert(f(x) && true);
-}
diff --git a/tests/language_2/vm/regress_27671_test.dart b/tests/language_2/vm/regress_27671_test.dart
deleted file mode 100644
index 9ec25191dc0..00000000000
--- a/tests/language_2/vm/regress_27671_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// VMOptions=--enable_asserts --optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'regress_27671_other.dart';
-
-@pragma('vm:prefer-inline')
-bounce(x) {
-  for (int i = 0; i < 10; i++) {
-    check(f, x);
-  }
-}
-
-@pragma('vm:prefer-inline')
-bool f(y) => y > 0;
-
-main() {
-  for (int i = 0; i < 100; i++) {
-    bounce(1);
-  }
-  try {
-    bounce(-1);
-  } catch (e) {
-    Expect.isTrue(e.toString().contains('f(x) && true'));
-  }
-}
diff --git a/tests/language_2/vm/regress_29137_vm_test.dart b/tests/language_2/vm/regress_29137_vm_test.dart
deleted file mode 100644
index 55293d4da19..00000000000
--- a/tests/language_2/vm/regress_29137_vm_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Check that optimizer correctly handles (x << y) & MASK_32 pattern on 32-bit
-// platforms: given the pattern
-//
-//     v1 <- UnboxedIntConverter([tr] mint->uint32, v0)
-//     v2 <- UnboxedIntConverter(uint32->mint, v1)
-//
-// optimizer must *not* replace v2 with v0 because the first conversion is
-// truncating and is erasing the high part of the mint value.
-//
-// VMOptions=--optimization-counter-threshold=90 --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-const _MASK_32 = 0xffffffff;
-int _rotl32(int val, int shift) {
-  final mod_shift = shift & 31;
-  return ((val << mod_shift) & _MASK_32) |
-      ((val & _MASK_32) >> (32 - mod_shift));
-}
-
-rot8(v) => _rotl32(v, 8);
-
-main() {
-  // Note: value is selected in such a way that (value << 8) is not a smi - this
-  // triggers emission of BinaryMintOp instructions for shifts.
-  const value = 0xF0F00000;
-  const rotated = 0xF00000F0;
-  Expect.equals(rotated, rot8(value));
-  for (var i = 0; i < 100; i++) {
-    Expect.equals(rotated, rot8(value));
-  }
-}
diff --git a/tests/language_2/vm/regress_29145_test.dart b/tests/language_2/vm/regress_29145_test.dart
deleted file mode 100644
index d182b41e058..00000000000
--- a/tests/language_2/vm/regress_29145_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=-1 --stacktrace-filter=completeError --stress-async-stacks
-
-// @dart = 2.9
-
-// Stress test for async stack traces.
-
-import 'dart:async';
-import "package:expect/expect.dart";
-
-class A {
-  Future<List<int>> read() => new Future.error(123);
-}
-
-Future<A> haha() => new Future.microtask(() => new A());
-
-Future<List<int>> mm() async => (await haha()).read();
-
-foo() async => await mm();
-
-main() async {
-  var x;
-  try {
-    x = await foo();
-  } catch (e) {
-    Expect.equals(123, e);
-    return;
-  }
-  Expect.isTrue(false);
-}
diff --git a/tests/language_2/vm/regress_31946_test.dart b/tests/language_2/vm/regress_31946_test.dart
deleted file mode 100644
index 3c9692cbd38..00000000000
--- a/tests/language_2/vm/regress_31946_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--no_background_compilation --optimization_counter_threshold=10
-
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-
-var root = [];
-var tests = <dynamic>[
-  () async {},
-  () async {
-    await new Future.value();
-    root.singleWhere((f) => f.name == 'optimizedFunction');
-  },
-];
-
-main(args) async {
-  for (int i = 0; i < 100; ++i) {
-    int exceptions = 0;
-    for (final test in tests) {
-      try {
-        await test();
-      } on StateError {
-        exceptions++;
-      }
-    }
-    Expect.isTrue(exceptions == 1);
-  }
-}
diff --git a/tests/language_2/vm/regress_32204_test.dart b/tests/language_2/vm/regress_32204_test.dart
deleted file mode 100644
index 25746612e16..00000000000
--- a/tests/language_2/vm/regress_32204_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that local functions capture `this` if their arguments refer to
-// type parameters from the enclosing class.
-
-import "package:expect/expect.dart";
-
-typedef void B<T>(T v);
-
-class MyFisk {}
-
-class MyHest {}
-
-class A<T> {
-  var value;
-
-  A(B<T> x) {
-    // This function does not capture `this` explicitly, however it needs
-    // to capture it in order to access T. Verify that we do it correctly.
-    // If `this` is not captured then foo turns into (B<dynamic>) -> Null
-    // which means that foo(x) would throw if T != dynamic.
-    f(B<T> v) {}
-
-    f(x);
-  }
-
-  foo<U>(B<T> x, B<U> y) {
-    // This function does not capture `this` explicitly, verify that it still
-    // can access `T`.
-    f(B<T> v, B<U> y) {}
-
-    f(x, y);
-  }
-}
-
-void main() {
-  new A<MyFisk>((MyFisk v) {});
-  new A<MyFisk>((MyFisk v) {}).foo<MyHest>((MyFisk v) {}, (MyHest v) {});
-}
diff --git a/tests/language_2/vm/regress_32322_test.dart b/tests/language_2/vm/regress_32322_test.dart
deleted file mode 100644
index 3312d0bede2..00000000000
--- a/tests/language_2/vm/regress_32322_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that optimizing compiler does not perform an illegal code motion
-// past CheckNull instruction.
-
-import "package:expect/expect.dart";
-
-class C {
-  final String padding = "";
-  final String field = "1"; // Note: need padding to hit an object header
-  // of the next object after [null] object when
-  // doing illegal null.field read. Need to hit
-  // object header to cause crash.
-}
-
-int foofoo(C p) {
-  int sum = 0;
-  for (var i = 0; i < 10; i++) {
-    // Note: need redundant instructions in the loop to trigger Canonicalize
-    // after CSE. Canonicalize then would illegally remove the Redefinition.
-    sum += p.field.length;
-    sum += p.field.length;
-  }
-  return sum;
-}
-
-void main() {
-  Expect.equals(20, foofoo(new C()));
-  Expect.throwsNoSuchMethodError(() => foofoo(null));
-}
diff --git a/tests/language_2/vm/regress_32502_test.dart b/tests/language_2/vm/regress_32502_test.dart
deleted file mode 100644
index b3433085958..00000000000
--- a/tests/language_2/vm/regress_32502_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that VM does not omit type checks from closure prologues.
-
-import "package:expect/expect.dart";
-
-void invoke(dynamic f, dynamic arg) {
-  f(arg);
-}
-
-void main() {
-  dynamic x = 42;
-
-  foo(int v) {
-    x = v;
-  }
-
-  bar<T>() {
-    return (T v) {
-      x = v;
-    };
-  }
-
-  Expect.throwsTypeError(() => invoke(foo, "hello"));
-  Expect.throwsTypeError(() => invoke(bar<int>(), "hello"));
-  Expect.equals(42, x);
-}
diff --git a/tests/language_2/vm/regress_32971_test.dart b/tests/language_2/vm/regress_32971_test.dart
deleted file mode 100644
index f335e6d6a7c..00000000000
--- a/tests/language_2/vm/regress_32971_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test verifying that default switch cast is cloned correctly by the
-// mixin transformation.
-
-import "package:expect/expect.dart";
-
-void main() {
-  final o = new A();
-  Expect.isTrue(o.f());
-  Expect.isTrue(o.g());
-}
-
-class A extends B with M {}
-
-class B {
-  bool f() {
-    switch (true) {
-      default:
-        return true;
-    }
-    return false;
-  }
-}
-
-class M {
-  bool g() {
-    switch (true) {
-      default:
-        return true;
-    }
-    return false;
-  }
-}
diff --git a/tests/language_2/vm/regress_33025_test.dart b/tests/language_2/vm/regress_33025_test.dart
deleted file mode 100644
index 52161b3a325..00000000000
--- a/tests/language_2/vm/regress_33025_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that VM correctly handles function type arguments across
-// yield points.
-
-import "package:expect/expect.dart";
-
-void main() {
-  doStuff<String>();
-}
-
-doStuff<T>() async {
-  Expect.equals(String, T);
-  await null;
-  Expect.equals(String, T);
-}
diff --git a/tests/language_2/vm/regress_33040_instantiation_test.dart b/tests/language_2/vm/regress_33040_instantiation_test.dart
deleted file mode 100644
index 0789b18ceec..00000000000
--- a/tests/language_2/vm/regress_33040_instantiation_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Exact regression test for issue #33040.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-class Optional<T> {}
-
-typedef T ConvertFunction<T>();
-
-T blockingLatest<T>() {
-  return null;
-}
-
-abstract class ObservableModel<T> {}
-
-abstract class AsyncValueMixin<T> {
-  Future<T> get asyncValue {
-    ConvertFunction<T> f = blockingLatest;
-    if (f is! ConvertFunction<T>) throw "error";
-    return null;
-  }
-}
-
-abstract class OptionalSettableObservableModel<T>
-    extends ObservableModel<Optional<T>> with AsyncValueMixin<Optional<T>> {}
-
-class FooObservableModel extends OptionalSettableObservableModel<int> {}
-
-Future<void> main() async {
-  var model = new FooObservableModel();
-  await model.asyncValue;
-}
diff --git a/tests/language_2/vm/regress_33040_test.dart b/tests/language_2/vm/regress_33040_test.dart
deleted file mode 100644
index bcd86a98440..00000000000
--- a/tests/language_2/vm/regress_33040_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that prefix sharing optimization is taken into account when
-// concatenating type arguments vectors.
-
-import "package:expect/expect.dart";
-
-class C0 {}
-
-class C1 {}
-
-class C2 {}
-
-class C3 {}
-
-class Wrong {}
-
-void bar<T0, T1>() {
-  void baz<T2, T3>() {
-    Expect.equals(C0, T0);
-    Expect.equals(C1, T1);
-    Expect.equals(C2, T2);
-    Expect.equals(C3, T3);
-  }
-
-  baz<C2, C3>();
-}
-
-class A<X, Y, Z> {
-  void foo() {
-    bar<X, Y>();
-  }
-}
-
-void main() {
-  new A<C0, C1, Wrong>().foo();
-}
diff --git a/tests/language_2/vm/regress_33073_test.dart b/tests/language_2/vm/regress_33073_test.dart
deleted file mode 100644
index fd79ad8e9d6..00000000000
--- a/tests/language_2/vm/regress_33073_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that the correct number of type arguments is observed in the
-// Invocation object for invocations that pass all-dynamic type arguments.
-
-import "package:expect/expect.dart";
-
-class C {
-  dynamic noSuchMethod(Invocation invoke) {
-    Expect.equals(1, invoke.typeArguments.length);
-  }
-}
-
-void main() {
-  ((new C()) as dynamic).foo<dynamic>();
-}
diff --git a/tests/language_2/vm/regress_33095_test.dart b/tests/language_2/vm/regress_33095_test.dart
deleted file mode 100644
index 05459305a23..00000000000
--- a/tests/language_2/vm/regress_33095_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-typedef String IntFunctionType(int _);
-
-class Box {
-  final IntFunctionType fun;
-  const Box(this.fun);
-}
-
-String genericFunction<T>(T v) => '$v';
-
-void main() {
-  const list = const [const Box(genericFunction)];
-  Expect.equals('42', list.first.fun(42));
-}
diff --git a/tests/language_2/vm/regress_33469_test.dart b/tests/language_2/vm/regress_33469_test.dart
deleted file mode 100644
index a85fcf4e4ce..00000000000
--- a/tests/language_2/vm/regress_33469_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class X {
-  final x;
-  const X(this.x);
-}
-
-void main() {
-  print(const X(1 << -1).x);  //# 01: compile-time error
-  print(const X(1 >> -1).x);  //# 02: compile-time error
-  print(const X(1 % 0).x);    //# 03: compile-time error
-  print(const X(1 ~/ 0).x);   //# 04: compile-time error
-}
diff --git a/tests/language_2/vm/regress_33794_test.dart b/tests/language_2/vm/regress_33794_test.dart
deleted file mode 100644
index c98cfa98808..00000000000
--- a/tests/language_2/vm/regress_33794_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that sub-expressions with side-effects are handled correctly
-// in the presence of exceptions or deoptimization.
-
-import "package:expect/expect.dart";
-
-int var1 = -35;
-
-main() {
-  try {
-    var1 = (((~(var1)) ^ (++var1)) >> (++var1));
-  } catch (e) {
-    Expect.equals('Invalid argument(s): -33', e.toString());
-  } finally {
-    Expect.equals(-33, var1);
-  }
-}
diff --git a/tests/language_2/vm/regress_34051_test.dart b/tests/language_2/vm/regress_34051_test.dart
deleted file mode 100644
index 2b6d3e39843..00000000000
--- a/tests/language_2/vm/regress_34051_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  // This is a regression test for http://dartbug.com/34051.
-
-  // Warm-up the subtype cache with a "(int) -> int" closure.
-  Expect.isTrue(fooClosure(partialInst(gen)));
-
-  // Test that the generic "(T) -> T" closure raises a type error.
-  Expect.throwsTypeError(() => fooClosure(gen));
-}
-
-FI partialInst(FI arg) => arg;
-
-T gen<T>(T a) => a;
-
-final dynamic fooClosure = foo;
-bool foo(FI arg) => arg is FI;
-
-typedef FI = int Function(int);
diff --git a/tests/language_2/vm/regress_34288_test.dart b/tests/language_2/vm/regress_34288_test.dart
deleted file mode 100644
index dd41e72ac57..00000000000
--- a/tests/language_2/vm/regress_34288_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test canonicalization of integer shift operations.
-// This is a regression test for dartbug.com/34288.
-
-// VMOptions=--no_background_compilation --optimization_counter_threshold=10
-
-import "package:expect/expect.dart";
-
-int _shl_63(int x) => x << 63;
-int _shl_64(int x) => x << 64;
-int _shl_65(int x) => x << 65;
-int _shl_m1(int x) => x << -1;
-
-int _shr_63(int x) => x >> 63;
-int _shr_64(int x) => x >> 64;
-int _shr_65(int x) => x >> 65;
-int _shr_m1(int x) => x >> -1;
-
-// Non-constant values.
-int one = 1;
-int minusOne = -1;
-
-doTests() {
-  Expect.equals(0x8000000000000000, _shl_63(one));
-  Expect.equals(0x8000000000000000, _shl_63(minusOne));
-  Expect.equals(0, _shl_64(one));
-  Expect.equals(0, _shl_64(minusOne));
-  Expect.equals(0, _shl_65(one));
-  Expect.equals(0, _shl_65(minusOne));
-
-  Expect.throws<ArgumentError>(() {
-    _shl_m1(one);
-  });
-
-  Expect.equals(0, _shr_63(one));
-  Expect.equals(-1, _shr_63(minusOne));
-  Expect.equals(0, _shr_64(one));
-  Expect.equals(-1, _shr_64(minusOne));
-  Expect.equals(0, _shr_65(one));
-  Expect.equals(-1, _shr_65(minusOne));
-
-  Expect.throws<ArgumentError>(() {
-    _shr_m1(one);
-  });
-}
-
-void main() {
-  for (int i = 0; i < 20; ++i) {
-    doTests();
-  }
-}
diff --git a/tests/language_2/vm/regress_34396_helper.dart b/tests/language_2/vm/regress_34396_helper.dart
deleted file mode 100644
index b3f19bc60b8..00000000000
--- a/tests/language_2/vm/regress_34396_helper.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library regress_34396_helper;
-
-get privateSymbol => #_privateSymbol;
-get privateSymbolSame => #_privateSymbol;
diff --git a/tests/language_2/vm/regress_34396_test.dart b/tests/language_2/vm/regress_34396_test.dart
deleted file mode 100644
index 53acc84ae45..00000000000
--- a/tests/language_2/vm/regress_34396_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'regress_34396_helper.dart' as helper;
-
-main() {
-  Expect.isFalse(#_privateSymbol == helper.privateSymbol);
-  Expect.isFalse(#_privateSymbol == helper.privateSymbolSame);
-  Expect.isFalse(identical(#_privateSymbol, helper.privateSymbol));
-  Expect.isFalse(identical(#_privateSymbol, helper.privateSymbolSame));
-
-  Expect.isTrue(helper.privateSymbol == helper.privateSymbolSame);
-  Expect.isTrue(identical(helper.privateSymbol, helper.privateSymbolSame));
-}
diff --git a/tests/language_2/vm/regress_34435_test.dart b/tests/language_2/vm/regress_34435_test.dart
deleted file mode 100644
index fc7eedbf0ab..00000000000
--- a/tests/language_2/vm/regress_34435_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--optimization-filter=triggerBug --no-background-compilation --optimization-counter-threshold=2
-
-@pragma('vm:never-inline')
-dynamic triggerGC() {
-  var a = [];
-  for (int i = 0; i < 100; ++i) {
-    a.add([]);
-  }
-  return a;
-}
-
-@pragma('vm:never-inline')
-void fillLowerStackWithReturnAddresses() {
-  recursive(20);
-}
-
-@pragma('vm:never-inline')
-dynamic recursive(dynamic n) {
-  if (n > 0) {
-    recursive(n - 1);
-  }
-  return 0x0deadbef;
-}
-
-class Box {
-  @pragma('vm:never-inline')
-  Box get value => global;
-}
-
-Box global;
-
-main() {
-  bool isTrue = true;
-  bool hasProblem = true;
-
-  @pragma('vm:never-inline')
-  void triggerBug(Box box) {
-    triggerGC();
-
-    Box element = box.value;
-    if (isTrue) {
-      hasProblem = true;
-      return;
-    }
-    try {
-      Map map = {};
-    } finally {}
-  }
-
-  final st = new Box();
-  for (int i = 0; i < 1000; ++i) {
-    fillLowerStackWithReturnAddresses();
-    triggerBug(st);
-  }
-}
diff --git a/tests/language_2/vm/regress_34466_test.dart b/tests/language_2/vm/regress_34466_test.dart
deleted file mode 100644
index c88b3605eca..00000000000
--- a/tests/language_2/vm/regress_34466_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test NaN comparison (dartbug.com/34466 and dartbug.com/34467).
-
-// VMOptions=--no_background_compilation --optimization_counter_threshold=10
-
-import "package:expect/expect.dart";
-
-double dvar = double.nan;
-
-int doit() {
-  if (!(((-84).toDouble() <= double.nan))) {
-    return 1;
-  } else {
-    return 2;
-  }
-}
-
-doTests() {
-  Expect.isFalse(dvar > dvar);
-  Expect.isFalse(dvar < dvar);
-  Expect.isFalse(dvar <= dvar);
-  Expect.isFalse(dvar >= dvar);
-  Expect.isFalse(dvar > -dvar);
-  Expect.isFalse(-dvar > dvar);
-
-  Expect.isTrue(!(dvar > dvar));
-  Expect.isTrue(!(dvar < dvar));
-  Expect.isTrue(!(dvar <= dvar));
-  Expect.isTrue(!(dvar >= dvar));
-  Expect.isTrue(!(dvar > -dvar));
-  Expect.isTrue(!(-dvar > dvar));
-
-  Expect.equals(1, doit());
-
-  Expect.isFalse(dvar == dvar);
-  Expect.isFalse(dvar == -dvar);
-  Expect.isTrue(dvar != dvar);
-  Expect.isTrue(dvar != -dvar);
-
-  Expect.isTrue(!(dvar == dvar));
-  Expect.isTrue(!(dvar == -dvar));
-  Expect.isFalse(!(dvar != dvar));
-  Expect.isFalse(!(dvar != -dvar));
-}
-
-void main() {
-  for (int i = 0; i < 20; ++i) {
-    doTests();
-  }
-}
diff --git a/tests/language_2/vm/regress_34644_test.dart b/tests/language_2/vm/regress_34644_test.dart
deleted file mode 100644
index f01ae2ba63f..00000000000
--- a/tests/language_2/vm/regress_34644_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test verifies that annotations on parameters are correctly handled
-// in the tree shaker.
-// Regression test for https://github.com/dart-lang/sdk/issues/34644.
-
-class ClassUsedInAnnotation1 {
-  const ClassUsedInAnnotation1();
-}
-
-class ClassUsedInAnnotation2 {
-  const ClassUsedInAnnotation2();
-}
-
-abstract class B {
-  void foo(@ClassUsedInAnnotation1() String param);
-}
-
-class C implements B {
-  void foo(String param) {}
-}
-
-typedef void Foo(@ClassUsedInAnnotation2() String param);
-
-B x = new C();
-
-void main() {
-  x.foo("hi");
-
-  Foo y = x.foo;
-  y("hello");
-}
diff --git a/tests/language_2/vm/regress_34684_test.dart b/tests/language_2/vm/regress_34684_test.dart
deleted file mode 100644
index 7ea37b91dea..00000000000
--- a/tests/language_2/vm/regress_34684_test.dart
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// No LICM on array bounds check (dartbug.com/34684).
-//
-// VMOptions=--deterministic --optimization_counter_threshold=10
-
-import "package:expect/expect.dart";
-
-List<int> foo(int n, int k) {
-  var l = new List<int>.filled(1, null);
-  var j = n - 1;
-  for (var i = 0; i < k; i++) {
-    l[j] = 10; // do not hoist
-  }
-  return l;
-}
-
-int x = -1;
-
-List<int> bar(int n, int k) {
-  x = -1;
-  var l = new List<int>.filled(n, null);
-  for (var i = 0; i < k; i++) {
-    x = i;
-    l[4] = 10; // do not hoist
-  }
-  return l;
-}
-
-void main() {
-  List<int> l;
-
-  for (int i = 0; i < 20; ++i) {
-    l = foo(1, 0);
-    Expect.equals(1, l.length);
-    Expect.equals(null, l[0]);
-
-    l = foo(2, 0);
-    Expect.equals(1, l.length);
-    Expect.equals(null, l[0]);
-
-    l = foo(i, 0);
-    Expect.equals(1, l.length);
-    Expect.equals(null, l[0]);
-
-    l = foo(1, 1);
-    Expect.equals(1, l.length);
-    Expect.equals(10, l[0]);
-
-    l = foo(1, i + 1);
-    Expect.equals(1, l.length);
-    Expect.equals(10, l[0]);
-
-    try {
-      l = foo(-i, 1);
-    } catch (_) {
-      l = null;
-    }
-    Expect.equals(null, l);
-
-    l = bar(5, 0);
-    Expect.equals(5, l.length);
-    Expect.equals(null, l[4]);
-    Expect.equals(-1, x);
-
-    l = bar(5, i + 1);
-    Expect.equals(5, l.length);
-    Expect.equals(10, l[4]);
-    Expect.equals(i, x);
-
-    try {
-      l = bar(1, i + 1);
-    } catch (_) {
-      l = null;
-    }
-    Expect.equals(null, l);
-    Expect.equals(0, x);
-  }
-}
diff --git a/tests/language_2/vm/regress_35321_test.dart b/tests/language_2/vm/regress_35321_test.dart
deleted file mode 100644
index bc8194b5281..00000000000
--- a/tests/language_2/vm/regress_35321_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Proper CP on double op (dartbug.com/35321).
-//
-// VMOptions=--deterministic --optimization_counter_threshold=10
-
-import "package:expect/expect.dart";
-
-double foo(bool x) {
-  if (x) return 1.0;
-}
-
-int bar(int i) {
-  if (i < 0) {
-    return bar(i + 1);
-  } else if ((foo(i == 22) / 22.0) >= (1 / 0.0)) {
-    return 1;
-  }
-  return 0;
-}
-
-void main() {
-  for (int i = 0; i < 20; ++i) {
-    var x = -1;
-    try {
-      x = bar(i);
-    } catch (_) {
-      x = -2;
-    }
-    Expect.equals(-2, x);
-  }
-}
diff --git a/tests/language_2/vm/regress_35325_test.dart b/tests/language_2/vm/regress_35325_test.dart
deleted file mode 100644
index c479a238a64..00000000000
--- a/tests/language_2/vm/regress_35325_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Proper nullable comparison (dartbug.com/35325).
-//
-// VMOptions=--deterministic --optimization_counter_threshold=10
-
-import "package:expect/expect.dart";
-
-bool var1;
-int var2;
-
-bar(List<int> par1, double par2) {
-  if (par2 == 123.0) return 456.0;
-  // fall into return null
-}
-
-bool foo(double par1) {
-  return (bar(
-          [81, 17],
-          ((!(var1))
-              ? double.maxFinite
-              : (var1 ? (80).floorToDouble() : par1))) ==
-      (((~(var2))).roundToDouble()).sign);
-}
-
-void main() {
-  for (int i = 0; i < 20; ++i) {
-    var1 = true;
-    var2 = 4;
-    var x = foo(0.0);
-    Expect.isFalse(x);
-    Expect.isTrue(var1);
-    Expect.equals(4, var2);
-  }
-}
diff --git a/tests/language_2/vm/regress_36589_test.dart b/tests/language_2/vm/regress_36589_test.dart
deleted file mode 100644
index 84fff574720..00000000000
--- a/tests/language_2/vm/regress_36589_test.dart
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Non-smi constant indices for load and store indexed (dartbug.com/36589).
-//
-// VMOptions=--deterministic --optimization_counter_threshold=5
-
-import "package:expect/expect.dart";
-
-List<int> mX = new List.filled(1, null);
-
-@pragma('vm:never-inline')
-int foo() {
-  return mX[8589934591];
-}
-
-@pragma('vm:never-inline')
-foo_store() {
-  mX[8589934591] = 0;
-}
-
-@pragma('vm:never-inline')
-int bar() {
-  List<int> x = new List.filled(1, null);
-  return x[8589934591];
-}
-
-@pragma('vm:never-inline')
-bar_store() {
-  List<int> x = new List.filled(1, null);
-  x[8589934591] = 0;
-}
-
-main() {
-  int i = 0;
-  for (int j = 0; j < 10; j++) {
-    try {
-      i = foo();
-    } catch (e, s) {
-      i++;
-    }
-  }
-  Expect.equals(10, i);
-  for (int j = 0; j < 10; j++) {
-    try {
-      foo_store();
-    } catch (e, s) {
-      i++;
-    }
-  }
-  Expect.equals(20, i);
-  for (int j = 0; j < 10; j++) {
-    try {
-      i = bar();
-    } catch (e, s) {
-      i++;
-    }
-  }
-  Expect.equals(30, i);
-  for (int j = 0; j < 10; j++) {
-    try {
-      bar_store();
-    } catch (e, s) {
-      i++;
-    }
-  }
-  Expect.equals(40, i);
-}
diff --git a/tests/language_2/vm/regress_36681_test.dart b/tests/language_2/vm/regress_36681_test.dart
deleted file mode 100644
index a61c70520a4..00000000000
--- a/tests/language_2/vm/regress_36681_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Enforce proper S-overlapping register for temp (dartbug.com/36681).
-//
-// VMOptions=--deterministic --optimization_counter_threshold=5
-
-import "package:expect/expect.dart";
-
-double v = 0;
-
-@pragma('vm:never-inline')
-int foo(int a, int p, int q) {
-  double p1 = 0;
-  double p2 = 0;
-  double p3 = 0;
-  double p4 = 0;
-  double p5 = 0;
-  double p6 = 0;
-  double p7 = 0;
-  double p8 = 0;
-  for (int z = 0; z < 8; z++) {
-    a += (p ~/ q);
-    a += (p % q);
-    p += 3;
-    q += 2;
-    p1 += 1;
-    p2 += 2;
-    p3 += 3;
-    p4 += 4;
-    p5 += 1;
-    p6 += 2;
-    p7 += 3;
-    p8 += 4;
-  }
-  v = p1 + p2 + p3 + p4 + p5 + p6 + p7 + p8;
-  return a;
-}
-
-main() {
-  for (int j = 0; j < 10; j++) {
-    int i = foo(1, 1, 1);
-    Expect.equals(37, i);
-    Expect.equals(160, v);
-  }
-}
diff --git a/tests/language_2/vm/regress_36778_test.dart b/tests/language_2/vm/regress_36778_test.dart
deleted file mode 100644
index 2c860d5ef4d..00000000000
--- a/tests/language_2/vm/regress_36778_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check for length overflow when eliminating write barriers for variable-length
-// objects.
-//
-// VMOptions=--deterministic --optimization_counter_threshold=5 --optimization_level=3
-
-import "package:expect/expect.dart";
-
-List foo(int a) {
-  if (a >= 100) {
-    return List.filled(2305843009213693951, 1);
-  }
-  return null;
-}
-
-main() {
-  for (int i = 0; i < 100; i++) {
-    List x = foo(i);
-    Expect.equals(null, x);
-  }
-}
diff --git a/tests/language_2/vm/regress_36803_test.dart b/tests/language_2/vm/regress_36803_test.dart
deleted file mode 100755
index 50b0dcbc81a..00000000000
--- a/tests/language_2/vm/regress_36803_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Don't LICM AOT's generic bounds check reference beyond other exception.
-// (dartbug.com/36803).
-//
-// VMOptions=--deterministic --optimization_level=3
-
-import "package:expect/expect.dart";
-
-String var1 = 'Hdi\u{1f600}T';
-
-@pragma('vm:never-inline')
-int foo() {
-  List<int> a = [1, 2, 3, 4];
-  int x = 0;
-  do {
-    Uri.decodeQueryComponent(var1);
-    x = x + a[1000];
-  } while (x < 1);
-  return x;
-}
-
-main() {
-  int x = 0;
-  try {
-    x = foo();
-  } on RangeError catch (e) {
-    x = -2;
-  } on ArgumentError catch (e) {
-    x = -1;
-  }
-  Expect.equals(-1, x);
-}
diff --git a/tests/language_2/vm/regress_36977_test.dart b/tests/language_2/vm/regress_36977_test.dart
deleted file mode 100755
index 0beca90eb81..00000000000
--- a/tests/language_2/vm/regress_36977_test.dart
+++ /dev/null
@@ -1,475 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// VMOptions=--deterministic
-//
-// Regression test, reduced case found by DartFuzz that crashed DBC register
-// allocator (https://github.com/dart-lang/sdk/issues/36977).
-
-// @dart = 2.9
-
-// [NNBD non-migrated]: This test contains dozens and dozens of static errors
-// under NNBD. Migrating the test to fix those errors significantly changes the
-// code under test in ways that are likely to invalidate it.
-
-import 'dart:async';
-import 'dart:cli';
-import 'dart:collection';
-import 'dart:convert';
-import 'dart:core';
-import 'dart:io';
-import 'dart:isolate';
-import 'dart:math';
-import 'dart:typed_data';
-
-double var0 = 0.9297828201722298;
-bool var1 = false;
-int var2 = -99;
-double var3 = 0.26752130449990763;
-String var4 = 'OJG';
-List<int> var5 = [0, -92, 49, 96];
-Set<int> var6 = {29, 9223372036854775807, 75};
-Map<int, String> var7 = {
-  56: '\u{1f600}D',
-  35: '62',
-  13: '',
-  14: '5k1\u{1f600}\u{1f600}'
-};
-
-double foo0(String par1) {
-  throw ({
-        51: MapBase.mapToString(var7),
-        9: '-Io',
-        65: ((var2 * var5[-77])).toRadixString(
-            ((false ? false : (true ? var1 : (!((!(var1))))))
-                ? (--var2)
-                : (-(-16)))),
-        61: ''
-      } ??
-      var7);
-}
-
-int foo1(Set<int> par1, Set<int> par2) {
-  return Int32x4.zxzy;
-}
-
-String foo2() {
-  {
-    int loc0 = 58;
-    while (--loc0 > 0) {
-      switch ((~((~((-((~(foo1((false ? var6 : var6), {
-        (~(-84)),
-        ((var1 ? var5[(loc0 + (var2--))] : -77) >>
-            ((var1 ? var2 : ((-(var2)) - loc0)) +
-                foo1(
-                    {
-                      -8,
-                      19,
-                      (true ? var2 : 70),
-                      39,
-                      loc0,
-                      Int32x4.wxyw,
-                      var5[var5[Int32x4.wzxz]],
-                      -12
-                    },
-                    (var6 ??
-                        {
-                          var5[(var1 ? var5[loc0] : var2)],
-                          var5[(loc0--)],
-                          loc0
-                        })))),
-        ((Int32x4.yzzw % loc0) % -87),
-        Int32x4.wxyz,
-        Float32x4.wzxz
-      })))))))))) {
-        case 3666713542:
-          {
-            var4 = (true
-                ? var4
-                : String.fromCharCode((var1
-                    ? ((true ? true : true) ? var5[(var2++)] : var2)
-                    : (((((false ? (true ? false : true) : false) ? 52 : var2) -
-                                foo1(var6, var6)) ~/
-                            var2) ^
-                        loc0))));
-          }
-          break;
-        case 3666713543:
-          {
-            var5 = [(Float32x4.xzyw << (Int32x4.zywz * var2))];
-          }
-          break;
-      }
-    }
-  }
-  return 'hLw';
-}
-
-class X0 {
-  bool fld0_0 = true;
-
-  Set<int> foo0_0(Map<int, String> par1, int par2) {
-    try {
-      if ((var5 != var5)) {
-        throw 0.2119336645634784;
-      }
-    } catch (exception, stackTrace) {
-      if (fld0_0) {
-        print({
-          ((Float32x4.xzzx %
-                  ((-(30)) *
-                      foo1(
-                          var6,
-                          ({
-                                (par2++),
-                                foo1({
-                                  var5[-83],
-                                  (true ? -58 : foo1(var6, var6)),
-                                  par2,
-                                  (var5[-49] - 46),
-                                  var2,
-                                  var5[76],
-                                  73
-                                }, (var6).difference(var6)),
-                                (((false ? var5[49] : 6442450943) > -98)
-                                    ? -92
-                                    : var5[7]),
-                                -93,
-                                var5[var5[27]],
-                                var5[-5],
-                                (-(((var1 ? false : true) ? var5[-87] : par2)))
-                              } ??
-                              {FileSystemEvent.modify, 31, var2})))) +
-              var2),
-          (((++par2)).isEven
-              ? foo1(
-                  ((var6).toSet()).intersection((var1
-                      ? var6
-                      : (true
-                          ? (var6 ??
-                              {
-                                foo1({
-                                  (45 ^ -59),
-                                  var2,
-                                  -94,
-                                  Int32x4.yyzw,
-                                  var2,
-                                  44,
-                                  var5[foo1(var6, (var6 ?? {-91, var2}))]
-                                }, var6),
-                                ((++par2) % 70),
-                                88
-                              })
-                          : var6))),
-                  ({
-                        -85,
-                        (var2++),
-                        (++par2),
-                        45,
-                        par2,
-                        (--par2),
-                        (var5[par2] ??
-                            (-((~(foo1(var6, {
-                              foo1(
-                                  ({
-                                        (var2 -
-                                            (FileSystemEntity.isFileSync(
-                                                    'd)\u{1f600}+Sm')
-                                                ? (false ? 22 : var2)
-                                                : -15)),
-                                        var5[var2],
-                                        par2,
-                                        var5[(foo1(
-                                                var6,
-                                                ({
-                                                      var2,
-                                                      (~(-9223372030412324863)),
-                                                      (var2++),
-                                                      -18
-                                                    } ??
-                                                    var6)) &
-                                            Int32x4.yxwx)],
-                                        (fld0_0
-                                            ? (~((-(-50))))
-                                            : foo1({
-                                                foo1({-92, var5[81]}, var6),
-                                                var2,
-                                                76,
-                                                var5[(false
-                                                    ? (true
-                                                        ? var2
-                                                        : var5[Float32x4.yzxx])
-                                                    : var5[var5[var2]])],
-                                                Duration.minutesPerHour,
-                                                34
-                                              }, var6)),
-                                        -72
-                                      } ??
-                                      var6),
-                                  {25, Float32x4.wwww})
-                            })))))),
-                        (par2--)
-                      } ??
-                      var6))
-              : (-((SecurityContext.alpnSupported
-                  ? Float32x4.zwyz
-                  : foo1({
-                      14,
-                      var5[var2],
-                      (~(39)),
-                      93,
-                      Float32x4.xyxx,
-                      (-(var5[(-65 << -28)])),
-                      24,
-                      (~(-64))
-                    }, {
-                      -31,
-                      (foo1(var6, {
-                            Float32x4.zzyx,
-                            96,
-                            Float32x4.yyxw,
-                            var2,
-                            par2
-                          }) +
-                          Int32x4.wzyy),
-                      (~(52)),
-                      -13,
-                      par2,
-                      -83,
-                      ZLibOption.defaultMemLevel,
-                      (var2++)
-                    })))))
-        });
-      }
-    } finally {
-      for (int loc0 = 0; loc0 < 90; loc0++) {
-        if (false) {
-          var5 ??= [(~((++par2)))];
-          var0 += ((0.08377494829959586 - (-(var3))) *
-              (-(((true ? (var0 + 0.8491470957055424) : var0) /
-                  ((!(var1))
-                      ? var0
-                      : (var0 *
-                          ((([
-                                        -67,
-                                        6442450943,
-                                        -95,
-                                        var5[par2],
-                                        -30,
-                                        6442450945,
-                                        loc0
-                                      ] ??
-                                      [
-                                        (true ? 6442450943 : 16),
-                                        var5[var5[1]],
-                                        var2,
-                                        Float32x4.xwzy,
-                                        par2,
-                                        var5[28],
-                                        Int32x4.xxwx,
-                                        var5[-23]
-                                      ]) !=
-                                  [var5[var5[(--par2)]], Int32x4.yzxy])
-                              ? var3
-                              : 0.9197172211286759)))))));
-        } else {
-          print((var4).codeUnits);
-        }
-      }
-      var7 ??= {
-        9: (var7[(((!(fld0_0)) ? -27 : (Float32x4.xyzz).round()) ^
-                ((~(54)) +
-                    foo1({
-                      var2,
-                      28,
-                      -9223372028264841217,
-                      (par2--),
-                      (++par2),
-                      -1,
-                      (-(var5[var2]))
-                    }, var6)))])
-            .padLeft(68, (0.0875980111263257).toStringAsPrecision((++par2))),
-        88: (foo2() ?? '1rcZ'),
-        32: 'NeAEG',
-        5: ('\u{1f600}n)V\u2665#').replaceRange(
-            (-(-1)),
-            (-(par2)),
-            ((((!((var1 || (true ? var1 : (var7).isEmpty)))) ? var1 : false) &&
-                    (var7).isEmpty)
-                ? ((false ? false : var1) ? '!Tlx)' : par1[6442450943])
-                : var4)),
-        13: var7[(((!(((par1[-27] ?? 'AcM') != 'Gb')))
-                ? true
-                : (var6 ==
-                    ({
-                          13,
-                          96,
-                          var5[Int32x4.zxyw],
-                          -41,
-                          ((fld0_0 || true) ? var5[-45] : var5[95]),
-                          (--par2),
-                          -37
-                        } ??
-                        {
-                          8589934591,
-                          ((--var2) ??
-                              (var2 *
-                                  ((!(var1))
-                                      ? var5[Float32x4.yxxx]
-                                      : (var2++)))),
-                          (var5[var5[Float32x4.wwzz]] * -30),
-                          Int32x4.xzzw,
-                          (-((~(22)))),
-                          15
-                        })))
-            ? (fld0_0
-                ? var2
-                : foo1({
-                    var5[-9223372028264841217],
-                    foo1(
-                        {
-                          -82,
-                          var5[Float32x4.zzyx],
-                          par2,
-                          (~(var5[par2])),
-                          (par2++),
-                          63
-                        },
-                        (false
-                            ? {
-                                0,
-                                Uint16List.bytesPerElement,
-                                -41,
-                                8,
-                                Int32x4.xxyz,
-                                RawSocketOption.levelSocket
-                              }
-                            : var6)),
-                    foo1({var5[(~(-47))], (-(-46))},
-                        ({var5[2], (-(-28))} ?? var6)),
-                    (par2--),
-                    foo1(({var5[-69], 52}).difference(var6),
-                        {25, (-(var5[9223372034707292159])), 52}),
-                    (var2++),
-                    Int32x4.ywyz,
-                    (FileSystemEntity.isWatchSupported ? (++par2) : var2)
-                  }, {
-                    Float32x4.wxzx,
-                    var2,
-                    par2,
-                    var5[var2],
-                    par2,
-                    var2
-                  }))
-            : (++par2))]
-      };
-    }
-    return var6;
-  }
-
-  Map<int, String> foo0_1(double par1) {
-    fld0_0 = (0.8454395181150425).isInfinite;
-    return {
-      86: var4,
-      59: ((((par1 ?? 0.45641338431576617)).toStringAsExponential(
-                  (foo1({51, 35, (var1 ? (~(var2)) : -35)}, var6) ^
-                      Int32x4.xwzx)))
-              .trimLeft() +
-          'FX')
-    };
-  }
-
-  void run() {
-    {
-      int loc0 = 2;
-      while (--loc0 > 0) {
-        var2 %= (fld0_0 ? var2 : -26);
-      }
-    }
-    try {
-      switch ((true
-          ? (~((var1 ? 40 : foo1((var6).difference(var6), {77}))))
-          : (92 ?? Float32x4.zxxx))) {
-        case 583336190:
-          {
-            var7 = (foo0_1(((2 ^ var2)).truncateToDouble()) ??
-                ((FileSystemEntity.isFileSync('J u') && false)
-                    ? ({
-                          96: 'PRN',
-                          26: 'rayc(',
-                          91: '',
-                          69: 'NG',
-                          78: 'B7',
-                          53: 'KOQzI',
-                          85: 'ZuksL'
-                        } ??
-                        var7)
-                    : var7));
-          }
-          break;
-        case 583336197:
-          {
-            var7 = (((--var2) != (~(((var2--) ~/ (++var2)))))
-                ? ((true ? Map.from(Map.of(var7)) : var7) ?? var7)
-                : foo0_1(0.48262288106096063));
-          }
-          break;
-      }
-      for (int loc0 = 0; loc0 < 8; loc0++) {
-        /*
-         * Multi-line
-         * comment.
-         */
-        {
-          int loc1 = 22;
-          while (--loc1 > 0) {
-            var6 ??= var6;
-            var7[(FileSystemEntity.isWatchSupported
-                ? foo1(
-                    (foo0_0({49: '7asVc2S', 12: 'x\u2665\u{1f600}tI'}, loc0))
-                        .difference(((!(true))
-                            ? foo0_0({
-                                24: 'kB9',
-                                87: 'vIEqX@r',
-                                36: '5u',
-                                34: 'M8\u{1f600}Og\u2665',
-                                73: '-bMA\u{1f600}N',
-                                39: 'F((\u{1f600}Y',
-                                54: 'FHp!'
-                              }, 4294967297)
-                            : var6)),
-                    foo0_0({
-                      95: '!sL',
-                      30: '\u2665',
-                      51: 'E+jWt\u{1f600}',
-                      78: 'cCr#k',
-                      56: ')P-a'
-                    }, -19))
-                : 76)] = (var4 + 'n\u2665\u{1f600}j');
-          }
-        }
-      }
-    } catch (exception, stackTrace) {
-      var3 ??= ((!(true))
-          ? foo0(var7[(false
-              ? foo1(
-                  ((foo0_0({
-                            60: 'Nt2h',
-                            48: 'gWolH9',
-                            42: ')',
-                            15: 'n!YW\u2665',
-                            79: '7E\u{1f600}'
-                          }, 37) ??
-                          {19}) ??
-                      var6),
-                  {-17, 4294967297, -94, -63})
-              : (var2--))])
-          : ((-(double.nan)) / 0.7833677975390729));
-    }
-  }
-}
-
-main() {
-  new X0().run();
-}
diff --git a/tests/language_2/vm/regress_37149_test.dart b/tests/language_2/vm/regress_37149_test.dart
deleted file mode 100644
index ab6b46ded07..00000000000
--- a/tests/language_2/vm/regress_37149_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test verifies that typedef types used in constants are correctly
-// visited in the tree shaker.
-// Regression test for https://github.com/dart-lang/sdk/issues/37149.
-
-import 'dart:async' show FutureOr;
-
-typedef ComputeCallback<Q, R> = FutureOr<R> Function(Q message);
-typedef _ComputeImpl = Future<R> Function<Q, R>(
-    ComputeCallback<Q, R> callback, Q message,
-    {String debugLabel});
-
-Future<R> isolatesCompute<Q, R>(ComputeCallback<Q, R> callback, Q message,
-    {String debugLabel}) async {
-  return null;
-}
-
-const _ComputeImpl compute = isolatesCompute;
-
-main() {
-  compute.call(null, null);
-}
diff --git a/tests/language_2/vm/regress_37984_test.dart b/tests/language_2/vm/regress_37984_test.dart
deleted file mode 100644
index 5ca6ba60be0..00000000000
--- a/tests/language_2/vm/regress_37984_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-main() async {
-  await for (var x in func(3)) {
-    print(x);
-  }
-}
-
-Stream<int> func(int i) async* {
-  int currentState = 0;
-  try {
-    print('outer try');
-  } finally {
-    try {
-      print('inner try');
-    } finally {
-      yield currentState + 1;
-    }
-    yield currentState + 1;
-    print('finally');
-  }
-}
diff --git a/tests/language_2/vm/regress_39283_test.dart b/tests/language_2/vm/regress_39283_test.dart
deleted file mode 100644
index ad35c0be005..00000000000
--- a/tests/language_2/vm/regress_39283_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  dynamic foo(a) {
-    baz() {
-      Expect.fail('Should not be reachable');
-    }
-
-    return baz;
-  }
-}
-
-main() {
-  Expect.throws(() {
-    dynamic x = A().foo(1);
-    x<List>();
-  }, (e) => e is NoSuchMethodError);
-}
diff --git a/tests/language_2/vm/regress_40792_test.dart b/tests/language_2/vm/regress_40792_test.dart
deleted file mode 100644
index 19d37390a0a..00000000000
--- a/tests/language_2/vm/regress_40792_test.dart
+++ /dev/null
@@ -1,131 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--optimization_counter_threshold=10 --deterministic
-
-// Regression test for https://dartbug.com/40792 and https://dartbug.com/40795.
-// Verifies that non-nullability is not inferred from 'is' tests which
-// accept null.
-
-import "package:expect/expect.dart";
-
-dynamic result;
-
-// Use separate functions so their parameter types can be inferred separately.
-setResult1(x) {
-  result = (x == null) ? 'null' : 'not null';
-}
-
-setResult2(x) {
-  result = (x == null) ? 'null' : 'not null';
-}
-
-setResult3(x) {
-  result = (x == null) ? 'null' : 'not null';
-}
-
-setResult4(x) {
-  result = (x == null) ? 'null' : 'not null';
-}
-
-setResult5(x) {
-  result = (x == null) ? 'null' : 'not null';
-}
-
-setResult6(x) {
-  result = (x == null) ? 'null' : 'not null';
-}
-
-setResult7(x) {
-  result = (x == null) ? 'null' : 'not null';
-}
-
-class A<S, T extends S> {
-  @pragma('vm:never-inline')
-  test1(S x) {
-    if (x is T) {
-      setResult1(x);
-    }
-  }
-
-  @pragma('vm:never-inline')
-  test2(S x) {
-    if (x is T) {
-      setResult2(x);
-    }
-  }
-
-  @pragma('vm:never-inline')
-  test3(S x) {
-    if (x is T) {
-      setResult2(x);
-    }
-  }
-
-  @pragma('vm:never-inline')
-  test4(S x) {
-    if (x is T) {
-      setResult2(x);
-    }
-  }
-}
-
-@pragma('vm:never-inline')
-test5(x) {
-  if (x is Null) {
-    setResult5(x);
-  }
-}
-
-@pragma('vm:never-inline')
-test6(x) {
-  if (x is Object) {
-    setResult6(x);
-  }
-}
-
-@pragma('vm:never-inline')
-test7(x) {
-  if (x is dynamic) {
-    setResult7(x);
-  }
-}
-
-void doTests() {
-  result = 'unexpected';
-  new A<Null, Null>().test1(null);
-  Expect.equals('null', result);
-
-  result = 'unexpected';
-  new A<Object, Object>().test2(null);
-  Expect.equals('null', result);
-
-  result = 'unexpected';
-  new A<dynamic, dynamic>().test3(null);
-  Expect.equals('null', result);
-
-  result = 'unexpected';
-  new A<void, void>().test4(null);
-  Expect.equals('null', result);
-
-  result = 'unexpected';
-  test5(null);
-  Expect.equals('null', result);
-
-  result = 'unexpected';
-  test6(null);
-  Expect.equals('null', result);
-
-  result = 'unexpected';
-  test7(null);
-  Expect.equals('null', result);
-}
-
-main(List<String> args) {
-  for (int i = 0; i < 20; ++i) {
-    doTests();
-  }
-}
diff --git a/tests/language_2/vm/regress_45260_test.dart b/tests/language_2/vm/regress_45260_test.dart
deleted file mode 100644
index 5f82672a9ac..00000000000
--- a/tests/language_2/vm/regress_45260_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--optimization-counter-threshold=20 --deterministic
-
-import 'package:expect/expect.dart';
-
-List<List<List<List<int>>>> toNestedList() {
-  final list = [
-    for (var i0 = 0; i0 < 2; i0++)
-      [
-        for (var i1 = 0; i1 < 2; i1++)
-          [
-            for (var i2 = 0; i2 < 2; i2++)
-              [
-                for (var i3 = 0; i3 < 2; i3++)
-                  1000 * i0 + 100 * i1 + 10 * i2 + i3
-              ]
-          ]
-      ]
-  ];
-  return list;
-}
-
-const expectedList = [
-  [
-    [
-      [0000, 0001],
-      [0010, 0011],
-    ],
-    [
-      [0100, 0101],
-      [0110, 0111],
-    ]
-  ],
-  [
-    [
-      [1000, 1001],
-      [1010, 1011],
-    ],
-    [
-      [1100, 1101],
-      [1110, 1111],
-    ]
-  ]
-];
-
-void main() {
-  Expect.deepEquals(expectedList, toNestedList());
-}
diff --git a/tests/language_2/vm/regress_45524_test.dart b/tests/language_2/vm/regress_45524_test.dart
deleted file mode 100644
index 3f33adb7fa8..00000000000
--- a/tests/language_2/vm/regress_45524_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-
-// Reduced from:
-// The Dart Project Fuzz Tester (1.89).
-// Program generated as:
-//   dart dartfuzz.dart --seed 3959760722 --no-fp --no-ffi --flat
-// @dart=2.7
-
-bool var17 = bool.fromEnvironment('2y');
-
-class X0 {
-  num fld0_2 = 9223372036854775807;
-}
-
-extension XE0 on X0 {
-  bool foo0_Extension0() {
-    if (-12 >= -(((var17 ? -92 : fld0_2)))) {
-      return true;
-    } else {
-      return false;
-    }
-  }
-}
-
-main() {
-  Expect.equals(true, X0().foo0_Extension0());
-}
diff --git a/tests/language_2/vm/regress_45525_test.dart b/tests/language_2/vm/regress_45525_test.dart
deleted file mode 100644
index 57c7e88ef7a..00000000000
--- a/tests/language_2/vm/regress_45525_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10  --no-background-compilation
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-dynamic a() {
-  return 23;
-}
-
-dynamic b() {
-  return 26;
-}
-
-@pragma("vm:never-inline")
-dynamic foo() {
-  // BinarySmiOp(<<) marked truncating
-  return (a() << b()) & 0xFFFFFFF;
-}
-
-main() {
-  for (var i = 0; i < 20; i++) {
-    Expect.equals(201326592, foo());
-  }
-}
diff --git a/tests/language_2/vm/regress_45674_test.dart b/tests/language_2/vm/regress_45674_test.dart
deleted file mode 100644
index 56ab0293020..00000000000
--- a/tests/language_2/vm/regress_45674_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-// Reduced from
-
-// The Dart Project Fuzz Tester (1.89).
-// Program generated as:
-//   dart dartfuzz.dart --seed 3586617624 --no-fp --no-ffi --flat
-
-import 'dart:typed_data';
-
-Int32x4List var14 = Int32x4List(5);
-Map<bool, int> var58 = {false: -5, true: -16, false: 22};
-
-bool foo3_Extension1() {
-  try {
-    print(var14[((Int32x4.wyxw as int) >> var58[true])]);
-    return true;
-  } catch (e) {
-    return false;
-  }
-}
-
-main() {
-  var r;
-  try {
-    r = foo3_Extension1();
-  } catch (e) {
-    Expect.fail("Exception should have been caught sooner");
-  }
-  Expect.equals(false, r);
-}
diff --git a/tests/language_2/vm/regress_45855_test.dart b/tests/language_2/vm/regress_45855_test.dart
deleted file mode 100644
index d35675c3fed..00000000000
--- a/tests/language_2/vm/regress_45855_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--optimization-counter-threshold=100 --deterministic
-//
-// The Dart Project Fuzz Tester (1.89).
-// Program generated as:
-//   dart dartfuzz.dart --seed 928581289 --no-fp --ffi --no-flat
-//
-// Minimized.
-
-@pragma('vm:never-inline')
-void main2(bool boolParam) {
-  for (int i = 0; i < 200; i++) {
-    final bool1 = boolParam ?? false;
-    if (bool1) {
-      () {
-        // Force creating a new current context.
-        i.toString();
-      };
-      // Force having multiple paths to the exit, popping the current context.
-      break;
-    }
-  }
-}
-
-void main() {
-  // Test OSR.
-  main2(null);
-
-  // Test non-OSR.
-  main2(null);
-}
diff --git a/tests/language_2/vm/regress_b131091988_test.dart b/tests/language_2/vm/regress_b131091988_test.dart
deleted file mode 100644
index 9d6f50cfaca..00000000000
--- a/tests/language_2/vm/regress_b131091988_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that await from a call-via-field expression works.
-
-import 'package:expect/expect.dart';
-
-abstract class A<T> {
-  T Function(List<int> raw) get decode;
-}
-
-class B extends A<int> {
-  int Function(List<int> raw) get decode => (List<int> raw) => raw.first;
-}
-
-class C<T> {
-  final A<T> aa;
-  C(this.aa);
-}
-
-class D {
-  final C<int> cc;
-  D(this.cc);
-
-  Future<int> read() async {
-    return cc.aa.decode(await getList());
-  }
-
-  Future<List<int>> getList() async => <int>[42];
-}
-
-main() async {
-  D dd = new D(new C<int>(new B()));
-  Expect.equals(42, await dd.read());
-}
diff --git a/tests/language_2/vm/regress_b80154489_test.dart b/tests/language_2/vm/regress_b80154489_test.dart
deleted file mode 100644
index d9f303b0d99..00000000000
--- a/tests/language_2/vm/regress_b80154489_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that class finalizer correctly marks supertypes of superinterfaces
-// as implemented.
-
-import 'package:expect/expect.dart';
-
-abstract class A {
-  String method();
-}
-
-abstract class B extends A {}
-
-class D extends A {
-  String method() => "D";
-}
-
-class C implements B {
-  String method() => "C";
-}
-
-String invoke(A a) {
-  return a.method();
-}
-
-void main(List<String> args) {
-  Expect.equals("C", invoke(args.contains('--use-d') ? new D() : new C()));
-}
diff --git a/tests/language_2/vm/regress_flutter_14891_test.dart b/tests/language_2/vm/regress_flutter_14891_test.dart
deleted file mode 100644
index 539199d352f..00000000000
--- a/tests/language_2/vm/regress_flutter_14891_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test verifying that type literals hidden within other constant objects
-// are correctly handled by the AOT compiler.
-
-import "package:expect/expect.dart";
-
-class _ClassOnlyUsedAsTypeLiteral {}
-
-void main() {
-  Expect
-      .isTrue((const [_ClassOnlyUsedAsTypeLiteral]).toString().startsWith('['));
-}
diff --git a/tests/language_2/vm/regress_flutter_19612_test.dart b/tests/language_2/vm/regress_flutter_19612_test.dart
deleted file mode 100644
index 36597645f8b..00000000000
--- a/tests/language_2/vm/regress_flutter_19612_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for https://github.com/flutter/flutter/issues/19612.
-// This test verifies that negated condition is correctly handled by the
-// AOT compiler.
-
-import "package:expect/expect.dart";
-
-class X {
-  final int maxLines;
-  X([this.maxLines]);
-
-  bool get isMultiline => maxLines != 1;
-}
-
-X x1 = new X(1);
-X x2 = new X(42);
-X x3 = new X();
-
-main() {
-  Expect.isFalse(x1.isMultiline);
-  Expect.isTrue(x2.isMultiline);
-  Expect.isTrue(x3.isMultiline);
-}
diff --git a/tests/language_2/vm/regress_flutter_21957_test.dart b/tests/language_2/vm/regress_flutter_21957_test.dart
deleted file mode 100644
index a60c2510b0e..00000000000
--- a/tests/language_2/vm/regress_flutter_21957_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests how nullability is inferred for a final field which is implicitly
-// initialized to null. This is a regression test for
-// https://github.com/flutter/flutter/issues/21957.
-
-// VMOptions=--no_background_compilation --optimization_counter_threshold=10
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class X {
-  final A f;
-  X.empty() : f = null;
-  X.full() : f = A();
-}
-
-bool doit(bool choice) {
-  X x = choice ? X.full() : X.empty();
-  return x.f == null;
-}
-
-class Y {
-  final A f;
-  Y.c0() : f = A();
-  Y.c1() : f = null;
-  Y.c2() : f = A();
-}
-
-bool doit2(int choice) {
-  Y y;
-  switch (choice) {
-    case 0:
-      y = new Y.c0();
-      break;
-    case 1:
-      y = new Y.c1();
-      break;
-    case 2:
-      y = new Y.c2();
-      break;
-  }
-  return y.f == null;
-}
-
-void main() {
-  for (int i = 0; i < 100; i++) {
-    bool ping = (i & 1) == 0;
-    bool result = doit(ping);
-    Expect.equals(result, !ping);
-
-    bool result2 = doit2(i % 3);
-    Expect.equals(result2, (i % 3) != 0 && (i % 3) != 2);
-  }
-}
diff --git a/tests/language_2/vm/regress_flutter_22131_test.dart b/tests/language_2/vm/regress_flutter_22131_test.dart
deleted file mode 100644
index b4bddeb23e6..00000000000
--- a/tests/language_2/vm/regress_flutter_22131_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verifies that inferred type of a final field takes constant objects into
-// account. This is a regression test for
-// https://github.com/flutter/flutter/issues/22131.
-
-// VMOptions=--no_background_compilation --optimization_counter_threshold=10
-
-import "package:expect/expect.dart";
-
-class X {
-  final Map<int, String> data;
-  const X(this.data);
-}
-
-const f = X({1: "ok-f"});
-final g = X({1: "ok-g"});
-
-void doTest() {
-  Expect.equals("ok-f", f.data[1]);
-  Expect.equals("ok-g", g.data[1]);
-}
-
-void main() {
-  for (int i = 0; i < 20; i++) {
-    doTest();
-  }
-}
diff --git a/tests/language_2/vm/regress_flutter_23879_test.dart b/tests/language_2/vm/regress_flutter_23879_test.dart
deleted file mode 100644
index 6e7297cb096..00000000000
--- a/tests/language_2/vm/regress_flutter_23879_test.dart
+++ /dev/null
@@ -1,74 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Bug in unboxed int spilling (https://github.com/flutter/flutter/issues/23879).
-//
-// VMOptions=--deterministic
-
-import "package:expect/expect.dart";
-
-List<int> list = new List<int>.filled(10, null);
-
-List<int> expected_values = [null, 152, 168, 184, 200, 216, 232, 248, 264, 280];
-
-int count = 0;
-
-bool getNext() {
-  return ++count <= 9;
-}
-
-int foo() {
-  int a = 1;
-  int b = 2;
-  int c = 3;
-  int d = 4;
-  int e = 5;
-  int f = 6;
-  int g = 7;
-  int h = 8;
-  int i = 9;
-  int j = 10;
-  int k = 11;
-  int l = 12;
-  int m = 13;
-  int n = 14;
-  int o = 15;
-  int p = 16;
-  count = 0;
-  int componentIndex = 1;
-  while (getNext()) {
-    // Make spilling likely.
-    a++;
-    b++;
-    c++;
-    d++;
-    e++;
-    f++;
-    g++;
-    h++;
-    i++;
-    j++;
-    k++;
-    l++;
-    m++;
-    n++;
-    o++;
-    p++;
-    list[componentIndex] =
-        a + b + c + d + e + f + g + h + i + j + k + l + m + n + o + p;
-    componentIndex++;
-  }
-  return componentIndex;
-}
-
-void main() {
-  int x = foo();
-  Expect.equals(10, x);
-  Expect.equals(10, count);
-  for (int i = 0; i < 10; i++) {
-    Expect.equals(expected_values[i], list[i]);
-  }
-}
diff --git a/tests/language_2/vm/regress_flutter_28260_test.dart b/tests/language_2/vm/regress_flutter_28260_test.dart
deleted file mode 100644
index 22a0478cc48..00000000000
--- a/tests/language_2/vm/regress_flutter_28260_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--deterministic --optimization_counter_threshold=10
-
-// Bug cid ranges (https://github.com/flutter/flutter/issues/28260).
-
-import 'dart:typed_data';
-
-import "package:expect/expect.dart";
-
-foo() {
-  ByteBuffer a = null;
-  var dataMap = Map<String, dynamic>();
-  dataMap['data'] = a;
-  return (dataMap['data'] is ByteBuffer);
-}
-
-void main() {
-  for (int i = 0; i < 20; i++) {
-    Expect.equals(false, foo());
-  }
-}
diff --git a/tests/language_2/vm/regress_flutter_42845_lib.dart b/tests/language_2/vm/regress_flutter_42845_lib.dart
deleted file mode 100644
index d21e1e3b56e..00000000000
--- a/tests/language_2/vm/regress_flutter_42845_lib.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-extension TestExtension on int {
-  bool get isPositive => this > 0;
-  bool get isNegative => this < 0;
-}
-
-extension UnusedExtension on int {
-  bool get isReallyZero => this == 0;
-}
diff --git a/tests/language_2/vm/regress_flutter_42845_test.dart b/tests/language_2/vm/regress_flutter_42845_test.dart
deleted file mode 100644
index 1991ad64d34..00000000000
--- a/tests/language_2/vm/regress_flutter_42845_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests exported extensions.
-
-import "regress_flutter_42845_lib.dart";
-export "regress_flutter_42845_lib.dart" show TestExtension, UnusedExtension;
-
-import "package:expect/expect.dart";
-
-int i = 42;
-
-void main() {
-  Expect.isTrue(i.isPositive);
-  Expect.isFalse(i.isNegative);
-}
diff --git a/tests/language_2/vm/regress_flutter_51828_bug2_test.dart b/tests/language_2/vm/regress_flutter_51828_bug2_test.dart
deleted file mode 100644
index d8180b63056..00000000000
--- a/tests/language_2/vm/regress_flutter_51828_bug2_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This is a regression test for the 2nd bug in
-// https://github.com/flutter/flutter/issues/51828.
-// Verifies that implicit cast of :result parameter of async_op
-// doesn't affect subsequent uses.
-
-import "package:expect/expect.dart";
-
-dynamic bar() async => 42;
-dynamic baz() async => 'hi';
-
-use(x, y) {
-  Expect.equals(42, x);
-  Expect.equals(2, y.length);
-}
-
-main() async {
-  int x = await bar();
-  String y = await baz();
-  use(x, y);
-}
diff --git a/tests/language_2/vm/regress_flutter_56479_test.dart b/tests/language_2/vm/regress_flutter_56479_test.dart
deleted file mode 100644
index 03b08a59606..00000000000
--- a/tests/language_2/vm/regress_flutter_56479_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verifies that optional parameters can be transformed in field initializers.
-// Regression test for https://github.com/flutter/flutter/issues/56479.
-
-import "package:expect/expect.dart";
-
-int bar({int x = 2}) => x + 1;
-
-class A {
-  static int foo = bar(x: 42);
-}
-
-main() {
-  Expect.equals(5, bar(x: 4));
-  Expect.equals(43, A.foo);
-}
diff --git a/tests/language_2/vm/regress_flutter_85311_test.dart b/tests/language_2/vm/regress_flutter_85311_test.dart
deleted file mode 100644
index a3458f95fd4..00000000000
--- a/tests/language_2/vm/regress_flutter_85311_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This is a regression test for the bug in
-// https://github.com/flutter/flutter/issues/51828.
-// Verifies that temporaries aren't incorrectly assigned types when they're
-// reused.
-
-import "package:expect/expect.dart";
-
-bool wasCalled = false;
-
-class Z {
-  bool operator ==(Object other) {
-    wasCalled = true;
-    return true;
-  }
-}
-
-class Y {
-  final dynamic v;
-  Y(this.v);
-}
-
-Future<bool> crash(dynamic y) async {
-  return (y.v == (await 7) || y == (await 9));
-}
-
-void main() async {
-  await crash(Y(Z()));
-
-  Expect.isTrue(wasCalled);
-}
diff --git a/tests/language_2/vm/regress_flutter_89584_test.dart b/tests/language_2/vm/regress_flutter_89584_test.dart
deleted file mode 100644
index 1fa00e7c2f7..00000000000
--- a/tests/language_2/vm/regress_flutter_89584_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This is a regression test for the bug in
-// https://github.com/flutter/flutter/issues/89584.
-// Verifies a Field::RecordStore is not done before all fields populated.
-
-import 'dart:isolate';
-import 'dart:typed_data';
-
-void main() async {
-  final receivePort = ReceivePort();
-  await Isolate.spawn<SendPort>(isolateEntry, receivePort.sendPort);
-  final wrapper = (await receivePort.first) as Wrapper;
-  final result = readWrapperUint8ListView(wrapper);
-  print(result);
-}
-
-const uint8ListLength = 1000000;
-
-void isolateEntry(SendPort sendPort) async {
-  final uint8list = Uint8List(uint8ListLength);
-  sendPort.send(Wrapper(
-    uint8list.buffer.asUint8List(0, uint8list.length),
-  ));
-}
-
-int readWrapperUint8ListView(Wrapper wrapper) {
-  var result = 0;
-  for (int i = 0; i < uint8ListLength; i++) {
-    result += wrapper.uint8ListView[i];
-  }
-  return result;
-}
-
-class Wrapper {
-  final Uint8List uint8ListView;
-  Wrapper(this.uint8ListView);
-}
diff --git a/tests/language_2/vm/regress_licm_test.dart b/tests/language_2/vm/regress_licm_test.dart
deleted file mode 100644
index 982fae93a0a..00000000000
--- a/tests/language_2/vm/regress_licm_test.dart
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// VMOptions=--optimization-counter-threshold=1000 --no-background-compilation
-
-// @dart = 2.9
-
-// Regression test for correct LICM and type propagation.
-
-class Attribute {
-  final id = 123;
-}
-
-abstract class Name {
-  Name(this.name);
-  final String name;
-  get attr;
-
-  @pragma('vm:prefer-inline')
-  int compareTo(other) {
-    int nameCompare = name.compareTo(other.name);
-    if (nameCompare != 0) return nameCompare;
-    if (attr == null) return 0;
-    return attr.id - other.attr.id;
-  }
-}
-
-class AName extends Name {
-  AName() : super("abc");
-  final attr = new Attribute();
-}
-
-class BName extends Name {
-  BName(name) : super(name);
-  get attr => null;
-}
-
-class Member {
-  Member(this.name);
-  var name;
-}
-
-Member find(List<Member> members, Name name) {
-  int low = 0, high = members.length - 1;
-  while (low <= high) {
-    int mid = low + ((high - low) >> 1);
-    Member pivot = members[mid];
-    int comparison = name.compareTo(pivot.name);
-    if (comparison < 0) {
-      high = mid - 1;
-    } else if (comparison > 0) {
-      low = mid + 1;
-    } else {
-      return pivot;
-    }
-  }
-  return null;
-}
-
-main() {
-  var list = [
-    new Member(new AName()),
-    new Member(new BName("a")),
-    new Member(new BName("b")),
-    new Member(new BName("c")),
-    new Member(new BName("d"))
-  ];
-
-  find(list, new AName());
-  find(list, new BName("e"));
-  find(list, new BName("b"));
-  for (var i = 0; i < 1000; ++i) {
-    find(list, new BName("b"));
-    find(list, new BName("e"));
-  }
-}
diff --git a/tests/language_2/vm/regress_protobuf_95_test.dart b/tests/language_2/vm/regress_protobuf_95_test.dart
deleted file mode 100644
index 773da9b7f6b..00000000000
--- a/tests/language_2/vm/regress_protobuf_95_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that compiler loads class id from the receiver and not from type
-// arguments when performing polymorphic inlining in the AOT mode.
-
-import "package:expect/expect.dart";
-
-abstract class Base {
-  Type rareMethod<T>();
-}
-
-class A extends Base {
-  Type rareMethod<T>() => A;
-}
-
-class B extends Base {
-  Type rareMethod<T>() => B;
-}
-
-Type trampoline<T>(Base v) => v.rareMethod<T>();
-
-void main() {
-  Expect.equals(A, trampoline(new A()));
-  Expect.equals(B, trampoline(new B()));
-}
diff --git a/tests/language_2/vm/regression_32912_test.dart b/tests/language_2/vm/regression_32912_test.dart
deleted file mode 100644
index 122929669f4..00000000000
--- a/tests/language_2/vm/regression_32912_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-dynamic _defaultCallback<T>(T t) => t;
-
-void bar<T>([dynamic Function(T) f = _defaultCallback]) {}  //# 01: compile-time error
-
-class C<T> {
-  // Should be statically rejected
-  foo([dynamic Function(T) f = _defaultCallback]) {}  //# 02: compile-time error
-
-  // Should be statically rejected
-  const C({this.callback = _defaultCallback});  //# 03: compile-time error
-
-  final dynamic Function(T) callback;  //# 03: continued
-}
-
-void main() {
-  bar<int>();                    //# 01: continued
-  print(new C<int>().foo());     //# 02: continued
-  print(new C<int>().callback);  //# 03: continued
-}
diff --git a/tests/language_2/vm/regression_36076_test.dart b/tests/language_2/vm/regression_36076_test.dart
deleted file mode 100755
index 1e847b408f8..00000000000
--- a/tests/language_2/vm/regression_36076_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Bug found by DartFuzz (stripped down version):
-// https://github.com/dart-lang/sdk/issues/36076
-
-// @dart = 2.9
-
-// Code does not do anything, but broke kernel binary flow graph builder.
-
-foo() {
-  try {
-    for (var x in [1, 2]) {
-      return;
-    }
-  } finally {
-    for (var x in [3]) {
-      break;
-    }
-  }
-}
-
-bar() {
-  try {} catch (e) {
-    try {} catch (e) {
-      for (var x in [1, 2]) {
-        if (x == 1) break;
-        return;
-      }
-      try {
-        try {} catch (e) {
-          return;
-        }
-      } catch (e) {}
-    } finally {
-      try {} catch (e) {
-        return;
-      }
-    }
-  } finally {}
-}
-
-main() {
-  foo();
-  bar();
-}
diff --git a/tests/language_2/vm/regression_36587_test.dart b/tests/language_2/vm/regression_36587_test.dart
deleted file mode 100644
index 91993bf9817..00000000000
--- a/tests/language_2/vm/regression_36587_test.dart
+++ /dev/null
@@ -1,107 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test extracted from a large DartFuzz-generated test.
-// https://github.com/dart-lang/sdk/issues/36587
-
-import "package:expect/expect.dart";
-
-import 'dart:async';
-import 'dart:cli';
-import 'dart:collection';
-import 'dart:convert';
-import 'dart:core';
-import 'dart:io';
-import 'dart:isolate';
-import 'dart:math';
-import 'dart:typed_data';
-
-Set<int> var0 = {-62, -13, 2147483648, -10, -9223372028264841217, -54, 47};
-Set<int> var1 = {-59};
-bool var2 = false;
-bool var3 = true;
-int var4 = 58;
-double var5 = 0.004032426761438224;
-String var6 = 'u6X2';
-List<int> var7 = [56, -95, 6442450944, -31, 82];
-Set<int> var8 = {9223372036854775807, 4294967297};
-Map<int, String> var9 = {
-  6: 'Ei(ZR',
-  75: 'O0A-',
-  99: 't',
-  49: 'Qu',
-  20: 'FujA\u2665',
-  47: ''
-};
-
-String foo2() {
-  var8 ??= Set.identity();
-  switch ((--var4)) {
-    case 3826530052:
-      {
-        {
-          int loc0 = 0;
-          do {
-            try {
-              throw {64: var6};
-            } catch (e) {
-              if ((!(var3))) {
-                break;
-              } else {
-                try {
-                  var8 = ((false ? FileSystemEntity.isWatchSupported : var3)
-                      ? {Int32x4.wxxx, var4, -43, Float32x4.wzxz}
-                      : {
-                          (var4++),
-                          (var7[(false ? -87 : (++loc0))] %
-                              (var7[((++loc0) * var4)] ~/ 73))
-                        });
-                  var0 = ((((-((((true ? var2 : false) ? (!(var3)) : true)
-                                  ? var5
-                                  : (0.38834735336907733 ??
-                                      0.8105736840461367)))) +
-                              (0.3752597438445757).abs()))
-                          .isFinite
-                      ? {
-                          (true ? 65 : (var3 ? (loc0--) : var4)),
-                          var7[Float32x4.xxxx]
-                        }
-                      : Set.identity());
-                  var1 = ((true
-                          ? ({var7[var7[-9223372032559808513]]}).toSet()
-                          : (Set.identity()).difference(var8)) ??
-                      var8);
-                  var9[Float32x4.zxyz] = '';
-                } catch (e) {
-                  loc0 ~/= ((var3 != var3)
-                      ? (~((false ? (-(loc0)) : Int32x4.wzwx)))
-                      : var4);
-                } finally {
-                  var1 = var8;
-                  var5 ??= 0.6273822429057158;
-                  throw [
-                    (loc0++),
-                    2147483647,
-                    (var4--),
-                    (-(ZLibOption.defaultWindowBits)),
-                    (~((loc0--))),
-                    (var4++)
-                  ];
-                }
-              }
-              break;
-            }
-          } while (++loc0 < 74);
-        }
-      }
-  }
-}
-
-main() {
-  Expect.equals(58, var4);
-  foo2();
-  Expect.equals(57, var4);
-}
diff --git a/tests/language_2/vm/regression_37408_test.dart b/tests/language_2/vm/regression_37408_test.dart
deleted file mode 100644
index b48d27a1dd0..00000000000
--- a/tests/language_2/vm/regression_37408_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Issue #37408: AOT did not throw.
-
-import "package:expect/expect.dart";
-
-import 'dart:math';
-
-String var0 = '5Zso';
-
-double foo2(String par1) {
-  return atan2(0.16964141699241508, num.tryParse('\u2665vDil'));
-}
-
-class X0 {
-  void run() {
-    foo2(var0);
-  }
-}
-
-main() {
-  bool x = false;
-  try {
-    new X0().run();
-  } catch (exception, stackTrace) {
-    x = true;
-  }
-  Expect.isTrue(x);
-}
diff --git a/tests/language_2/vm/regression_37622_test.dart b/tests/language_2/vm/regression_37622_test.dart
deleted file mode 100755
index 48562f53fcc..00000000000
--- a/tests/language_2/vm/regression_37622_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--deterministic
-
-// Issue #37622 found with fuzzing: internal compiler crash (division-by-zero).
-
-import 'dart:typed_data';
-
-import "package:expect/expect.dart";
-
-@pragma('vm:never-inline')
-int foo() {
-  int x = 0;
-  {
-    int loc0 = 67;
-    while (--loc0 > 0) {
-      --loc0;
-      x += (4 ~/ (Int32x4.wxwx >> loc0));
-      --loc0;
-      --loc0;
-    }
-  }
-}
-
-main() {
-  int x = 0;
-  bool d = false;
-  try {
-    x = foo();
-  } on UnsupportedError catch (e) {
-    d = true;
-  }
-  Expect.equals(x, 0);
-  Expect.isTrue(d);
-}
diff --git a/tests/language_2/vm/regression_37633_test.dart b/tests/language_2/vm/regression_37633_test.dart
deleted file mode 100755
index 53a00707440..00000000000
--- a/tests/language_2/vm/regression_37633_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--deterministic
-
-// Issue #37633 found with fuzzing: internal compiler crash (parallel move).
-
-import 'dart:math';
-
-import "package:expect/expect.dart";
-
-double foo0() {
-  return acos(0.9474715118880382);
-}
-
-@pragma('vm:never-inline')
-double foo() {
-  return atan2(foo0(), foo0());
-}
-
-main() {
-  double x = foo();
-  Expect.approxEquals(x, 0.7853981633974483);
-}
diff --git a/tests/language_2/vm/regression_37821_test.dart b/tests/language_2/vm/regression_37821_test.dart
deleted file mode 100755
index acad5da0859..00000000000
--- a/tests/language_2/vm/regression_37821_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--deterministic
-
-import "package:expect/expect.dart";
-
-import 'dart:typed_data';
-
-// Found by DartFuzzing: inconsistent view of unboxing
-// https://github.com/dart-lang/sdk/issues/37821
-
-double var5 = 0.5521203015696288;
-
-class X0 {
-  double fld0_1 = 0.44794902547497595;
-  void run() {
-    for (int loc1 = 0; loc1 < 11; loc1++) {
-      var5 = fld0_1;
-    }
-    fld0_1 -= 20;
-  }
-}
-
-class X1 extends X0 {
-  void run() {
-    super.run();
-  }
-}
-
-@pragma("vm:never-inline")
-void checkMe(double value) {
-  Expect.approxEquals(0.44794902547497595, value);
-}
-
-main() {
-  Expect.approxEquals(0.5521203015696288, var5);
-  new X1().run();
-  checkMe(var5);
-}
diff --git a/tests/language_2/vm/regression_38147_test.dart b/tests/language_2/vm/regression_38147_test.dart
deleted file mode 100755
index a2db5993373..00000000000
--- a/tests/language_2/vm/regression_38147_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--deterministic --optimization_counter_threshold=10
-
-import "package:expect/expect.dart";
-
-import 'dart:typed_data';
-
-// Found by DartFuzzing: truncating shift
-// https://github.com/dart-lang/sdk/issues/38147
-
-int bar(int x, int y) {
-  return (x << y) & 0xffff;
-}
-
-@pragma("vm:never-inline")
-int foo() {
-  return bar(-61, 12);
-}
-
-main() {
-  for (int i = 0; i < 20; i++) {
-    Expect.equals(12288, foo());
-  }
-}
diff --git a/tests/language_2/vm/regression_38231_test.dart b/tests/language_2/vm/regression_38231_test.dart
deleted file mode 100644
index 21cc7c96513..00000000000
--- a/tests/language_2/vm/regression_38231_test.dart
+++ /dev/null
@@ -1,128 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--optimization_counter_threshold=1
-
-import "package:expect/expect.dart";
-
-import 'dart:typed_data';
-
-// Found by DartFuzzing: would sometimes crash on OSR
-// https://github.com/dart-lang/sdk/issues/38231
-
-import 'dart:async';
-import 'dart:cli';
-import 'dart:collection';
-import 'dart:convert';
-import 'dart:core';
-import 'dart:io';
-import 'dart:isolate';
-import 'dart:math';
-import 'dart:typed_data';
-
-Map<int, String> var0 = {
-  41: 'V\u2665Y\u2665#Xs',
-  for (int loc0 in {
-    if (true) for (int loc0 in {-2147483649}) -4294967167 else if (false) -1,
-    -60,
-    -82,
-    -21,
-    for (int loc0 in [
-      -9223372036854771712,
-      for (int loc0 = 0; loc0 < 53; loc0++) 96
-    ])
-      1,
-    -58,
-    77
-  })
-    95: '',
-  5: 'z2\u2665e',
-  if (false) for (int loc0 in [-87, -2147483649, 0, 97, -53, 95]) 10: '#synP3',
-  22: ''
-};
-String var1 = ')LIpwG';
-double var2 = 0.30016980633333135;
-bool var3 = true;
-bool var4 = true;
-int var5 = -9223372036854774808;
-double var6 = 0.7012235530406754;
-String var7 = 'H';
-List<int> var8 = [90, -50, -34, -97, -33, 1];
-Set<int> var9 = {
-  42,
-  36,
-  9223372034707292159,
-  ...{52},
-  97,
-  for (int loc0 in {
-    if (true) ...{13} else -54,
-    -26,
-    -38,
-    9223372032559808513,
-    60
-  })
-    for (int loc1 in {
-      for (int loc1 in {19, 60}) -4294967280,
-      -17,
-      -62
-    }) ...{23, 11},
-  for (int loc0 = 0; loc0 < 30; loc0++) -44
-};
-Map<int, String> var10 = {
-  for (int loc0 in {
-    ...{
-      -52,
-      -9223372030412324864,
-      if (true) 82,
-      ...{76, 5, 9223372032559841279, 98, 58, 97, -127, 72},
-      for (int loc0 in [-97]) -14,
-      for (int loc0 = 0; loc0 < 21; loc0++) 88
-    },
-    -52,
-    for (int loc0 = 0; loc0 < 63; loc0++) ...{64, 0},
-    for (int loc0 = 0; loc0 < 67; loc0++) ...{67}
-  })
-    54: '',
-  41: 'cvokV0',
-  4: '9\u2665',
-  35: 'vRkv',
-  41: '\u2665',
-  63: 'Nu+u\u26659S'
-};
-
-class X0 {}
-
-class X1 with X0 {
-  bool foo1_0(List<int> par1, bool par2) => true;
-  Map<int, String> foo1_1(Set<int> par1, bool par2, Set<int> par3) {
-    return {1: "a", 2: "b"};
-  }
-}
-
-main() {
-  try {
-    X1().foo1_0([1, 2], true);
-  } catch (exception, stackTrace) {
-    print('X1().foo1_0() throws');
-  }
-  try {
-    X1().foo1_1(
-        {
-          32,
-          -94,
-          -2147483649,
-          -43,
-          for (int loc0 in {56, -31}) -9223372032559775745,
-          53,
-          86,
-          4294967296
-        },
-        var4,
-        {1, 2});
-  } catch (exception, stackTrace) {
-    print('X1().foo1_1() throws');
-  }
-}
diff --git a/tests/language_2/vm/regression_38412_test.dart b/tests/language_2/vm/regression_38412_test.dart
deleted file mode 100644
index c511db8e710..00000000000
--- a/tests/language_2/vm/regression_38412_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--optimization_counter_threshold=1
-
-// Found by DartFuzzing: would sometimes fail:
-// https://github.com/dart-lang/sdk/issues/38412
-
-import "package:expect/expect.dart";
-
-import 'dart:async';
-import 'dart:convert';
-
-int fuzzvar1 = -9223372028264841217;
-Map<int, String> fuzzvar8 = {1: "a"};
-
-class X1 {
-  List<int> foo1_0(List<int> par1, String par3) {
-    Expect.equals("not", par3);
-    Expect.equals(10, par1.length);
-    return [1];
-  }
-}
-
-String bar(Map<int, String> o1, int o2) {
-  Expect.equals(1, o1.length);
-  Expect.equals(-9223372028264841218, o2);
-  return "not";
-}
-
-main() {
-  for (int loc0 = 0; loc0 < 7500; loc0++) {
-    "a" == Uri.parse("\u2665");
-  }
-  print('fuzzvar8 runtime type: ${fuzzvar8.runtimeType}');
-  var x =
-      X1().foo1_0([for (int i = 0; i < 10; ++i) 0], bar(fuzzvar8, --fuzzvar1));
-  Expect.equals(1, x[0]);
-}
diff --git a/tests/language_2/vm/regression_38741_test.dart b/tests/language_2/vm/regression_38741_test.dart
deleted file mode 100644
index 256fea0cd96..00000000000
--- a/tests/language_2/vm/regression_38741_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--deterministic
-
-// Found by DartFuzzing: would fail during deopt:
-// https://github.com/dart-lang/sdk/issues/38741
-
-import 'package:expect/expect.dart';
-
-@pragma('vm:prefer-inline')
-bool foo(int x) => x < 10;
-
-@pragma('vm:never-inline')
-bool bar(bool f) => f && foo(1);
-
-void main() {
-  try {
-    foo(null); // seed feedback for x < 10 with null receiver cid
-  } catch (e) {}
-  // Now when foo will be inlined into bar we will know that x is Smi,
-  // this hower disagrees with type feedback (which currently is monomorphic and
-  // expects null receiver for x < 10).
-  for (var i = 0; i < 10000; i++) Expect.isFalse(bar(false));
-  Expect.isTrue(bar(true));
-}
diff --git a/tests/language_2/vm/regression_39071_test.dart b/tests/language_2/vm/regression_39071_test.dart
deleted file mode 100644
index aeb8d45e5b6..00000000000
--- a/tests/language_2/vm/regression_39071_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--optimization_counter_threshold=10
-
-// Found by DartFuzzing: would assert during OSR:
-// https://github.com/dart-lang/sdk/issues/39071
-
-main() {
-  var x = [
-    [for (int i = 0; i < 20; ++i) i]
-  ];
-}
diff --git a/tests/language_2/vm/regression_39193_test.dart b/tests/language_2/vm/regression_39193_test.dart
deleted file mode 100644
index 8b482e540b6..00000000000
--- a/tests/language_2/vm/regression_39193_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--optimization_counter_threshold=1
-
-// Found by DartFuzzing: would assert during OSR:
-// https://github.com/dart-lang/sdk/issues/39193
-
-Map<int, Set<int>> var75 = {};
-
-main() {
-  try {} catch (e, st) {} finally {
-    print('before');
-    var75[42] = (false
-        ? const {}
-        : {for (int loc1 = 0; loc1 < 1; loc1++) (-9223372034707292161 >> 165)});
-    print('after');
-  }
-}
diff --git a/tests/language_2/vm/reusable_boxes_test.dart b/tests/language_2/vm/reusable_boxes_test.dart
deleted file mode 100644
index 5fef79836b9..00000000000
--- a/tests/language_2/vm/reusable_boxes_test.dart
+++ /dev/null
@@ -1,91 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test correct handling reusable boxes.
-// VMOptions=--optimization_counter_threshold=100 --no-background_compilation
-
-// @dart = 2.9
-
-library reusable_boxes_test;
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-class D {
-  var a = 0.0;
-  var b = 1.0;
-  dynamic c = 2.0;
-  test() {
-    a = 0.0;
-    b = 1.0;
-    c = a + b;
-    return c;
-  }
-
-  testParam(x, y) {
-    x = x * x;
-    y = y * y;
-    c = x + y;
-  }
-}
-
-testD() {
-  var f = new D();
-  var r = 0.0;
-  for (var i = 0; i < 20; i++) {
-    r += f.test();
-  }
-  Expect.equals(20.0, r);
-  // Trigger a deopt of test.
-  f.testParam(new Float32x4(1.0, 2.0, 3.0, 4.0), new Float32x4.zero());
-  r = 0.0;
-  for (var i = 0; i < 20; i++) {
-    r += f.test();
-  }
-  Expect.equals(20.0, r);
-}
-
-class F {
-  var a = new Float32x4.zero();
-  var b = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  dynamic c = new Float32x4.zero();
-  test() {
-    a = new Float32x4.zero();
-    b = new Float32x4(1.0, 2.0, 3.0, 4.0);
-    c = a + b;
-    return c;
-  }
-
-  testParam(x, y) {
-    x = x * x;
-    y = y * y;
-    c = x + y;
-  }
-}
-
-testF() {
-  var f = new F();
-  var r = new Float32x4.zero();
-  for (var i = 0; i < 20; i++) {
-    r += f.test();
-  }
-  Expect.equals(20.0, r.x);
-  Expect.equals(40.0, r.y);
-  Expect.equals(60.0, r.z);
-  Expect.equals(80.0, r.w);
-  // Trigger a deopt of test.
-  f.testParam(1.0, 2.0);
-  r = new Float32x4.zero();
-  for (var i = 0; i < 20; i++) {
-    r += f.test();
-  }
-  Expect.equals(20.0, r.x);
-  Expect.equals(40.0, r.y);
-  Expect.equals(60.0, r.z);
-  Expect.equals(80.0, r.w);
-}
-
-main() {
-  testD();
-  testF();
-}
diff --git a/tests/language_2/vm/shift_special_cases_test.dart b/tests/language_2/vm/shift_special_cases_test.dart
deleted file mode 100644
index 4bda31fda52..00000000000
--- a/tests/language_2/vm/shift_special_cases_test.dart
+++ /dev/null
@@ -1,349 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation --use_slow_path
-
-// Test for special cases of << and >> integer operations with int64.
-
-import "package:expect/expect.dart";
-
-// int64 value, does not fit to smi
-int v1 = 0x778899aabbccddee;
-int v2 = 0x6000000000000000;
-int v3 = -0x778899aabbccddee;
-int negativeInt64 = -0x7000000000000000;
-int smi = 128;
-int negativeSmi = -3;
-
-int shl(int a, int b) => a << b;
-int shr(int a, int b) => a >> b;
-
-int shlUint32(int a, int b) => ((a & 0xffff) << b) & 0xffff;
-int shrUint32(int a, int b) => (a & 0xffff) >> b;
-
-int testInt64ShlByNegative1(int a, int b) {
-  int x = a + 1;
-  int y = a - 2;
-  try {
-    x = a << b;
-    Expect.fail('Shift by negative count should throw an error');
-  } on ArgumentError {
-    Expect.equals(0x778899aabbccddef, x);
-    Expect.equals(0x778899aabbccddec, y);
-  }
-}
-
-int testInt64ShlByNegative2(int a, int b) {
-  int x = a + 1;
-  int y = a - 2;
-  try {
-    x = shl(a, b);
-    Expect.fail('Shift by negative count should throw an error');
-  } on ArgumentError {
-    Expect.equals(0x778899aabbccddef, x);
-    Expect.equals(0x778899aabbccddec, y);
-  }
-}
-
-int testInt64ShlByNegative3(int a) {
-  int x = a + 1;
-  int y = a - 2;
-  try {
-    int i = -64;
-    x = a << i;
-    Expect.fail('Shift by negative count should throw an error');
-  } on ArgumentError {
-    Expect.equals(0x778899aabbccddef, x);
-    Expect.equals(0x778899aabbccddec, y);
-  }
-}
-
-int testInt64ShrByNegative1(int a, int b) {
-  int x = a + 1;
-  int y = a - 2;
-  try {
-    x = a >> b;
-    Expect.fail('Shift by negative count should throw an error');
-  } on ArgumentError {
-    Expect.equals(0x778899aabbccddef, x);
-    Expect.equals(0x778899aabbccddec, y);
-  }
-}
-
-int testInt64ShrByNegative2(int a, int b) {
-  int x = a + 1;
-  int y = a - 2;
-  try {
-    x = shr(a, b);
-    Expect.fail('Shift by negative count should throw an error');
-  } on ArgumentError {
-    Expect.equals(0x778899aabbccddef, x);
-    Expect.equals(0x778899aabbccddec, y);
-  }
-}
-
-int testInt64ShrByNegative3(int a) {
-  int x = a + 1;
-  int y = a - 2;
-  try {
-    int i = -64;
-    x = a >> i;
-    Expect.fail('Shift by negative count should throw an error');
-  } on ArgumentError {
-    Expect.equals(0x778899aabbccddef, x);
-    Expect.equals(0x778899aabbccddec, y);
-  }
-}
-
-int testInt64ShlByLarge1(int a, int b) {
-  int x = a << b;
-  Expect.equals(0, x);
-}
-
-int testInt64ShlByLarge2(int a) {
-  int i = 64;
-  int x = a << i;
-  Expect.equals(0, x);
-}
-
-int testInt64ShlByLarge3(int a) {
-  int i = 0x7fffffffffffffff;
-  int x = a << i;
-  Expect.equals(0, x);
-}
-
-int testInt64ShrByLarge1a(int a, int b) {
-  int x = a >> b;
-  Expect.equals(0, x);
-}
-
-int testInt64ShrByLarge1b(int a, int b) {
-  int x = a >> b;
-  Expect.equals(-1, x);
-}
-
-int testInt64ShrByLarge2a(int a) {
-  int i = 64;
-  int x = a >> i;
-  Expect.equals(0, x);
-}
-
-int testInt64ShrByLarge2b(int a) {
-  int i = 64;
-  int x = a >> i;
-  Expect.equals(-1, x);
-}
-
-int testInt64ShrByLarge3a(int a) {
-  int i = 0x7fffffffffffffff;
-  int x = a >> i;
-  Expect.equals(0, x);
-}
-
-int testInt64ShrByLarge3b(int a) {
-  int i = 0x7fffffffffffffff;
-  int x = a >> i;
-  Expect.equals(-1, x);
-}
-
-int testUint32ShlByNegative1(int a, int b) {
-  int x = (a & 0xfff) + 1;
-  int y = (a & 0xfff) - 2;
-  try {
-    x = ((a & 0xffff) << b) & 0xffff;
-    Expect.fail('Shift by negative count should throw an error');
-  } on ArgumentError {
-    Expect.equals(0xdef, x);
-    Expect.equals(0xdec, y);
-  }
-  return x;
-}
-
-int testUint32ShlByNegative2(int a, int b) {
-  int x = (a & 0xfff) + 1;
-  int y = (a & 0xfff) - 2;
-  try {
-    x = shlUint32(a, b);
-    Expect.fail('Shift by negative count should throw an error');
-  } on ArgumentError {
-    Expect.equals(0xdef, x);
-    Expect.equals(0xdec, y);
-  }
-}
-
-int testUint32ShlByNegative3(int a) {
-  int x = (a & 0xfff) + 1;
-  int y = (a & 0xfff) - 2;
-  try {
-    int i = -64;
-    x = ((a & 0xffff) << i) & 0xffff;
-    Expect.fail('Shift by negative count should throw an error');
-  } on ArgumentError {
-    Expect.equals(0xdef, x);
-    Expect.equals(0xdec, y);
-  }
-}
-
-int testUint32ShrByNegative1(int a, int b) {
-  int x = (a & 0xfff) + 1;
-  int y = (a & 0xfff) - 2;
-  try {
-    x = ((a & 0xffff) >> b) & 0xffff;
-    Expect.fail('Shift by negative count should throw an error');
-  } on ArgumentError {
-    Expect.equals(0xdef, x);
-    Expect.equals(0xdec, y);
-  }
-}
-
-int testUint32ShrByNegative2(int a, int b) {
-  int x = (a & 0xfff) + 1;
-  int y = (a & 0xfff) - 2;
-  try {
-    x = shrUint32(a, b);
-    Expect.fail('Shift by negative count should throw an error');
-  } on ArgumentError {
-    Expect.equals(0xdef, x);
-    Expect.equals(0xdec, y);
-  }
-}
-
-int testUint32ShrByNegative3(int a) {
-  int x = (a & 0xfff) + 1;
-  int y = (a & 0xfff) - 2;
-  try {
-    int i = -64;
-    x = ((a & 0xffff) >> i) & 0xffff;
-    Expect.fail('Shift by negative count should throw an error');
-  } on ArgumentError {
-    Expect.equals(0xdef, x);
-    Expect.equals(0xdec, y);
-  }
-}
-
-int testUint32ShlByLarge1(int a, int b) {
-  int x = ((a & 0xffff) << b) & 0xffff;
-  Expect.equals(0, x);
-}
-
-int testUint32ShlByLarge2(int a) {
-  int i = 64;
-  int x = ((a & 0xffff) << i) & 0xffff;
-  Expect.equals(0, x);
-}
-
-int testUint32ShlByLarge3(int a) {
-  int i = 0x7fffffffffffffff;
-  int x = ((a & 0xffff) << i) & 0xffff;
-  Expect.equals(0, x);
-}
-
-int testUint32ShrByLarge1(int a, int b) {
-  int x = ((a & 0xffff) >> b) & 0xffff;
-  Expect.equals(0, x);
-}
-
-int testUint32ShrByLarge2(int a) {
-  int i = 64;
-  int x = ((a & 0xffff) >> i) & 0xffff;
-  Expect.equals(0, x);
-}
-
-int testUint32ShrByLarge3(int a) {
-  int i = 0x7fffffffffffffff;
-  int x = ((a & 0xffff) >> i) & 0xffff;
-  Expect.equals(0, x);
-}
-
-doTests1() {
-  testInt64ShlByNegative1(v1, negativeSmi);
-  testInt64ShlByNegative2(v1, negativeSmi);
-  testInt64ShlByNegative3(v1);
-
-  testInt64ShrByNegative1(v1, negativeSmi);
-  testInt64ShrByNegative2(v1, negativeSmi);
-  testInt64ShrByNegative3(v1);
-
-  testInt64ShlByLarge1(v1, smi);
-  testInt64ShlByLarge1(v3, smi);
-
-  testInt64ShlByLarge2(v1);
-  testInt64ShlByLarge2(v3);
-
-  testInt64ShlByLarge3(v1);
-  testInt64ShlByLarge3(v3);
-
-  testInt64ShrByLarge1a(v1, smi);
-  testInt64ShrByLarge1b(v3, smi);
-
-  testInt64ShrByLarge2a(v1);
-  testInt64ShrByLarge2b(v3);
-
-  testInt64ShrByLarge3a(v1);
-  testInt64ShrByLarge3b(v3);
-
-  testUint32ShlByNegative1(v1, negativeSmi);
-  testUint32ShlByNegative2(v1, negativeSmi);
-  testUint32ShlByNegative3(v1);
-
-  testUint32ShrByNegative1(v1, negativeSmi);
-  testUint32ShrByNegative2(v1, negativeSmi);
-  testUint32ShrByNegative3(v1);
-
-  testUint32ShlByLarge1(v1, smi);
-  testUint32ShlByLarge1(v3, smi);
-
-  testUint32ShlByLarge2(v1);
-  testUint32ShlByLarge2(v3);
-
-  testUint32ShlByLarge3(v1);
-  testUint32ShlByLarge3(v3);
-
-  testUint32ShrByLarge1(v1, smi);
-  testUint32ShrByLarge1(v3, smi);
-
-  testUint32ShrByLarge2(v1);
-  testUint32ShrByLarge2(v3);
-
-  testUint32ShrByLarge3(v1);
-  testUint32ShrByLarge3(v3);
-}
-
-doTests2() {
-  testInt64ShlByNegative1(v1, negativeInt64);
-  testInt64ShlByNegative2(v1, negativeInt64);
-
-  testInt64ShrByNegative1(v1, negativeInt64);
-  testInt64ShrByNegative2(v1, negativeInt64);
-
-  testInt64ShlByLarge1(v1, v2);
-  testInt64ShlByLarge1(v3, v2);
-
-  testInt64ShrByLarge1a(v1, v2);
-  testInt64ShrByLarge1b(v3, v2);
-
-  testUint32ShlByNegative1(v1, negativeInt64);
-  testUint32ShlByNegative2(v1, negativeInt64);
-
-  testUint32ShrByNegative1(v1, negativeInt64);
-  testUint32ShrByNegative2(v1, negativeInt64);
-
-  testUint32ShlByLarge1(v1, v2);
-  testUint32ShlByLarge1(v3, v2);
-
-  testUint32ShrByLarge1(v1, v2);
-  testUint32ShrByLarge1(v3, v2);
-}
-
-main() {
-  for (var i = 0; i < 20; ++i) {
-    doTests1();
-  }
-  for (var i = 0; i < 50; ++i) {
-    doTests2();
-  }
-}
diff --git a/tests/language_2/vm/smi_widening_test.dart b/tests/language_2/vm/smi_widening_test.dart
deleted file mode 100644
index 0774909cb8f..00000000000
--- a/tests/language_2/vm/smi_widening_test.dart
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--deterministic --optimization-counter-threshold=102 --optimization-filter=Box_
-
-import 'package:expect/expect.dart';
-
-const int kLimit = 100;
-
-main() {
-  // Get all 3 functions optimized with _Smi's.
-  optimizeMilliseconds(1);
-  optimizeMicroseconds(1);
-  optimizeConstructor(1);
-
-  // Now we trigger a store of a _Mint into the Box._value
-  testMints(2048);
-}
-
-@pragma('vm:never-inline')
-optimizeConstructor(int value) {
-  for (int i = 0; i < kLimit; ++i) {
-    new Box(milliseconds: value);
-  }
-}
-
-@pragma('vm:never-inline')
-optimizeMicroseconds(int value) {
-  final d = new Box(milliseconds: value);
-  for (int i = 0; i < kLimit; ++i) {
-    Expect.equals(value * 1000, d.inMicroseconds);
-  }
-}
-
-@pragma('vm:never-inline')
-optimizeMilliseconds(int value) {
-  final d = new Box(seconds: value);
-  for (int i = 0; i < kLimit; ++i) {
-    Expect.equals(value * 1000, d.inMilliseconds);
-  }
-}
-
-@pragma('vm:never-inline')
-testMints(int value) {
-  final d = new Box(seconds: value);
-  for (int i = 0; i < kLimit; ++i) {
-    Expect.equals(value * 1000 * 1000, d.inMicroseconds);
-    Expect.equals(value * 1000, d.inMilliseconds);
-  }
-}
-
-int c = 0;
-
-class Box {
-  final int _value;
-
-  @pragma('vm:never-inline')
-  Box(
-      {int days: 0,
-      int hours: 0,
-      int minutes: 0,
-      int seconds: 0,
-      int milliseconds: 0,
-      int microseconds: 0})
-      : this._microseconds(1000 * 1000 * 60 * 60 * 24 * days +
-            1000 * 1000 * 60 * 60 * hours +
-            1000 * 1000 * 60 * minutes +
-            1000 * 1000 * seconds +
-            1000 * milliseconds +
-            microseconds);
-
-  Box._microseconds(this._value);
-
-  @pragma('vm:never-inline')
-  int get inMilliseconds => _value ~/ 1000;
-
-  @pragma('vm:never-inline')
-  int get inMicroseconds => _value;
-}
diff --git a/tests/language_2/vm/store_elimination_vm_test.dart b/tests/language_2/vm/store_elimination_vm_test.dart
deleted file mode 100644
index 996b481aa19..00000000000
--- a/tests/language_2/vm/store_elimination_vm_test.dart
+++ /dev/null
@@ -1,125 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test correctness of side effects tracking used by load to load forwarding.
-
-// @dart = 2.9
-
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-import "package:expect/expect.dart";
-
-class C {
-  var x;
-  var y;
-  final z = 123;
-}
-
-class D {
-  var x = 0.0;
-}
-
-var array = [0, 0];
-
-s1(a) {
-  a.x = 42;
-  a.x = 43;
-  return a.x;
-}
-
-void foo(a) {
-  Expect.equals(42, a.x);
-}
-
-s1a(a) {
-  a.x = 42;
-  foo(a);
-  a.x = 43;
-  return a.x;
-}
-
-s2() {
-  var t = new C();
-  return t;
-}
-
-s3(a, b) {
-  a.x = b + 1;
-  if (b % 2 == 0) {
-    a.x = 0;
-  } else {
-    a.x = 0;
-  }
-  return a.x;
-}
-
-s4(a, b) {
-  a.x = b + 1.0;
-  if (b % 2 == 0) {
-    a.x = b + 2.0;
-  }
-  a.x = b + 1.0;
-  return a.x;
-}
-
-test_with_context() {
-  f(a) {
-    var b = a + 1;
-    return (() => b + 1)();
-  }
-
-  for (var i = 0; i < 100000; i++) f(42);
-  Expect.equals(44, f(42));
-}
-
-test_with_instance() {
-  for (var i = 0; i < 20; i++) Expect.equals(43, s1(new C()));
-  for (var i = 0; i < 20; i++) Expect.equals(43, s1a(new C()));
-  for (var i = 0; i < 20; i++) Expect.equals(123, s2().z);
-  for (var i = 0; i < 20; i++) Expect.equals(0, s3(new C(), i));
-  for (var i = 0; i < 20; i++) Expect.equals(i + 1.0, s4(new D(), i));
-}
-
-arr1(a) {
-  a[0] = 42;
-  a[0] = 43;
-  Expect.equals(a[0], 43);
-  return a[0];
-}
-
-arr2(a, b) {
-  a[0] = 42;
-  a[b % 2] = 43;
-  Expect.equals(a[b % 2], 43);
-  return a[0];
-}
-
-test_with_array() {
-  for (var i = 0; i < 20; i++) Expect.equals(43, arr1(array));
-  for (var i = 0; i < 20; i++) {
-    Expect.equals(i % 2 == 0 ? 43 : 42, arr2(array, i));
-  }
-}
-
-var st = 0;
-
-static1(b) {
-  st = 42;
-  if (b % 2 == 0) {
-    st = 2;
-  }
-  st = b + 1;
-  Expect.equals(st, b + 1);
-  return st;
-}
-
-test_with_static() {
-  for (var i = 0; i < 20; i++) Expect.equals(i + 1, static1(i));
-}
-
-main() {
-  test_with_instance();
-  test_with_array();
-  test_with_context();
-  test_with_static();
-}
diff --git a/tests/language_2/vm/store_to_load_forwarding_phis_vm_test.dart b/tests/language_2/vm/store_to_load_forwarding_phis_vm_test.dart
deleted file mode 100644
index 14c718c80cf..00000000000
--- a/tests/language_2/vm/store_to_load_forwarding_phis_vm_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Test correct handling of phis with only environment uses that were inserted
-// by store to load forwarding.
-// VMOptions=--optimization_counter_threshold=100 --no-background_compilation
-
-// @dart = 2.9
-
-library store_to_load_forwarding_phis_vm_test;
-
-import 'dart:async';
-
-class A {
-  var _foo;
-
-  get foo {
-    if (_foo == null) {
-      _foo = new A();
-    }
-    return _foo;
-  }
-}
-
-foo(obj) {
-  var a = obj.foo;
-  return new Future.value().then((val) {});
-}
-
-main() {
-  final obj = new A();
-  for (var i = 0; i < 200; i++) {
-    foo(obj);
-  }
-}
diff --git a/tests/language_2/vm/string_polymorphic_test.dart b/tests/language_2/vm/string_polymorphic_test.dart
deleted file mode 100644
index 6ab734fc23f..00000000000
--- a/tests/language_2/vm/string_polymorphic_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization_counter_threshold=10 --no-background_compilation
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-test1(String a, String b) {
-  return a == b;
-}
-
-var LEN = 500;
-
-var ITER = 100000 / LEN;
-
-measure(fn, a, b) {
-  for (var i = 0; i < ITER; i++) {
-    Expect.equals(true, fn(a, b));
-  }
-}
-
-main() {
-  var n = LEN;
-  StringBuffer s = new StringBuffer();
-  for (var i = 0; i < n; ++i) s.write("A");
-  String t = s.toString();
-  String u = s.toString();
-  String v = s.toString() + "\u1234";
-  String w = s.toString() + "\u1234";
-  for (var i = 0; i < 10; i++) measure(test1, t, u);
-  for (var i = 0; i < 10; i++) measure(test1, v, w);
-}
diff --git a/tests/language_2/vm/symbols_test.dart b/tests/language_2/vm/symbols_test.dart
deleted file mode 100644
index b022a24b024..00000000000
--- a/tests/language_2/vm/symbols_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-void main() {
-  print(const Symbol(null));                                //# 01: compile-time error
-  print(const Symbol(r''));                                 //# 02: ok
-  Expect.isTrue(identical(const Symbol(r'foo'), #foo));     //# 03: ok
-  Expect.isTrue(identical(const Symbol(r'$foo'), #$foo));   //# 03: ok
-  Expect.isTrue(identical(const Symbol(r'$_'), #$_));       //# 03: ok
-  Expect.isTrue(identical(const Symbol(r'+'), #+));         //# 03: ok
-  Expect.isTrue(identical(const Symbol(r'[]='), #[]=));     //# 03: ok
-  Expect.isTrue(identical(const Symbol(r'_foo'), #_foo));   //# 03: compile-time error
-  Expect.isTrue(identical(const Symbol(r'_$'), #_$));       //# 03: compile-time error
-  Expect.isTrue(identical(const Symbol(r'_foo$'), #_foo$)); //# 03: compile-time error
-  print(const Symbol(r'_+'));                               //# 03: compile-time error
-}
diff --git a/tests/language_2/vm/tree_shake_type_args_in_constant_test.dart b/tests/language_2/vm/tree_shake_type_args_in_constant_test.dart
deleted file mode 100644
index 5d1e986dced..00000000000
--- a/tests/language_2/vm/tree_shake_type_args_in_constant_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test verifies that if a class is only used as a type argument of
-// a constant object, it is not removed by tree shaker.
-
-import "package:expect/expect.dart";
-
-@pragma("vm:entry-point") // Prevent obfuscation
-abstract class A {}
-
-class B<T> {
-  const B();
-  toString() => T.toString();
-}
-
-void main() {
-  const x = const B<A>();
-  Expect.equals("A", x.toString());
-}
diff --git a/tests/language_2/vm/type_cast_vm_test.dart b/tests/language_2/vm/type_cast_vm_test.dart
deleted file mode 100644
index f8b32e0e6a1..00000000000
--- a/tests/language_2/vm/type_cast_vm_test.dart
+++ /dev/null
@@ -1,144 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--no_show_internal_names
-// Dart test program testing type casts.
-
-// @dart = 2.9
-import "package:expect/expect.dart";
-
-checkSecondFunction(
-    String expectedFileAndLine, int expectedColum, StackTrace stacktrace) {
-  var topLine = stacktrace.toString().split("\n")[0];
-  int startPos = topLine.lastIndexOf("/");
-  int endPos = topLine.lastIndexOf(")");
-  String subs = topLine.substring(startPos + 1, endPos);
-  if (subs != expectedFileAndLine) {
-    Expect.equals("$expectedFileAndLine:$expectedColum", subs);
-  }
-}
-
-// Test that the initializer expression gets properly skipped.
-bool b = "foo" as bool;
-
-class TypeTest {
-  static test() {
-    int result = 0;
-    try {
-      var i = "hello" as int; // Throws a TypeError
-    } catch (error) {
-      result = 1;
-      Expect.type<TypeError>(error);
-      var msg = error.toString();
-      Expect.isTrue(msg.contains("int")); // dstType
-      Expect.isTrue(msg.contains("String")); // srcType
-      checkSecondFunction("type_cast_vm_test.dart:28", 23, error.stackTrace);
-    }
-    return result;
-  }
-
-  static testSideEffect() {
-    int result = 0;
-    int index() {
-      result++;
-      return 0;
-    }
-
-    try {
-      var a = new List<int>.filled(1, null) as List<int>;
-      a[0] = 0;
-      a[index()]++; // Type check succeeds, but does not create side effects.
-      Expect.equals(1, a[0]);
-    } catch (error) {
-      result = 100;
-    }
-    return result;
-  }
-
-  static testArgument() {
-    int result = 0;
-    int f(int i) {
-      return i;
-    }
-
-    try {
-      int i = f("hello" as int); // Throws a TypeError
-    } catch (error) {
-      result = 1;
-      Expect.type<TypeError>(error);
-      var msg = error.toString();
-      Expect.isTrue(msg.contains("int")); // dstType
-      Expect.isTrue(msg.contains("String")); // srcType
-      checkSecondFunction("type_cast_vm_test.dart:65", 25, error.stackTrace);
-    }
-    return result;
-  }
-
-  static testReturn() {
-    int result = 0;
-    int f(String s) {
-      return s as int; // Throws a TypeError
-    }
-
-    try {
-      int i = f("hello");
-    } catch (error) {
-      result = 1;
-      Expect.type<TypeError>(error);
-      var msg = error.toString();
-      Expect.isTrue(msg.contains("int")); // dstType
-      Expect.isTrue(msg.contains("String")); // srcType
-      checkSecondFunction("type_cast_vm_test.dart:80", 16, error.stackTrace);
-    }
-    return result;
-  }
-
-  static var field = "hello";
-
-  static testField() {
-    int result = 0;
-    Expect.equals(5, (field as String).length);
-    try {
-      field as int; // Throws a TypeError
-    } catch (error) {
-      result = 1;
-      var msg = error.toString();
-      Expect.isTrue(msg.contains("int")); // dstType
-      Expect.isTrue(msg.contains("String")); // srcType
-      checkSecondFunction("type_cast_vm_test.dart:102", 13, error.stackTrace);
-    }
-    return result;
-  }
-
-  static testAnyFunction() {
-    int result = 0;
-    Function anyFunction;
-    f() {}
-    ;
-    anyFunction = f as Function; // No error.
-    anyFunction = null as Function; // No error.
-    try {
-      var i = f as int; // Throws a TypeError if type checks are enabled.
-    } catch (error) {
-      result = 1;
-      var msg = error.toString();
-      Expect.isTrue(msg.contains("int")); // dstType
-      Expect.isTrue(msg.contains("() => Null")); // srcType
-      checkSecondFunction("type_cast_vm_test.dart:121", 17, error.stackTrace);
-    }
-    return result;
-  }
-
-  static testMain() {
-    Expect.equals(1, test());
-    Expect.equals(1, testSideEffect());
-    Expect.equals(1, testArgument());
-    Expect.equals(1, testReturn());
-    Expect.equals(1, testField());
-    Expect.equals(1, testAnyFunction());
-  }
-}
-
-main() {
-  TypeTest.testMain();
-}
diff --git a/tests/language_2/vm/type_of_call_via_getter_test.dart b/tests/language_2/vm/type_of_call_via_getter_test.dart
deleted file mode 100644
index e5ec68a3f2a..00000000000
--- a/tests/language_2/vm/type_of_call_via_getter_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test verifies that compiler infers correct type from call via getter.
-
-// VMOptions=--no_background_compilation --optimization_counter_threshold=10
-
-import "package:expect/expect.dart";
-
-typedef String IntFunctionType(int _);
-
-String functionImpl(int a) => 'abc';
-
-class Box {
-  IntFunctionType get fun => functionImpl;
-}
-
-var box = new Box();
-
-void test1() {
-  Expect.isFalse(box.fun(42) is Function);
-  Expect.isTrue(box.fun(42) is String);
-}
-
-class Callable {
-  String call(int i) => 'qwe';
-}
-
-class Box2 {
-  Callable get fun => new Callable();
-}
-
-var box2 = new Box2();
-
-void test2() {
-  Expect.isFalse(box2.fun is Function);
-  Expect.isTrue(box2.fun is Callable);
-  Expect.isFalse(box2.fun(42) is Function);
-  Expect.isFalse(box2.fun(42) is Callable);
-  Expect.isTrue(box2.fun(42) is String);
-}
-
-void main() {
-  for (int i = 0; i < 20; ++i) {
-    test1();
-  }
-  for (int i = 0; i < 20; ++i) {
-    test2();
-  }
-}
diff --git a/tests/language_2/vm/type_propagation_test.dart b/tests/language_2/vm/type_propagation_test.dart
deleted file mode 100644
index 40645a9b9eb..00000000000
--- a/tests/language_2/vm/type_propagation_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=1000 --max-polymorphic-checks=1 --no-background-compilation
-
-// @dart = 2.9
-
-// Test correct loop invariant code motion and type propagation from is-checks
-// and null-comparisons.
-
-class B {
-  var b;
-  B(this.b);
-}
-
-class C {
-  final f0 = null;
-
-  final a;
-  C() : a = new B(0);
-}
-
-foo(x) {
-  for (var i = 0; i < 10; i++) {
-    i + i;
-    i + i;
-    if (x is C) {
-      x.a.b < 0;
-    }
-  }
-}
-
-class Y {
-  var f = null;
-}
-
-bar(y) {
-  var x = y.f;
-  for (var i = 0; i < 10; i++) {
-    if (x != null) {
-      x.a.b < 0;
-    }
-  }
-}
-
-main() {
-  var o = new Y();
-  o.f = new C();
-  bar(o);
-  o.f = null;
-  bar(o);
-
-  for (var i = 0; i < 1000; i++) bar(o);
-
-  foo(new C());
-  foo(0);
-
-  for (var i = 0; i < 1000; i++) foo(0);
-}
diff --git a/tests/language_2/vm/type_vm_test.dart b/tests/language_2/vm/type_vm_test.dart
deleted file mode 100644
index cd9ecee7305..00000000000
--- a/tests/language_2/vm/type_vm_test.dart
+++ /dev/null
@@ -1,189 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--enable_type_checks --enable_asserts --no_show_internal_names
-// Dart test program testing type checks.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class C {
-  factory C() {
-    return 1; //# 01: compile-time error
-  }
-}
-
-class TypeTest {
-  static test() {
-    int i = "hello"; //# 02: compile-time error
-    return 1;
-  }
-
-  static testSideEffect() {
-    int result = 0;
-    int index() {
-      result++;
-      return 0;
-    }
-
-    try {
-      List<int> a = new List<int>.filled(1, null);
-      a[0] = 0;
-      a[index()]++; // Type check succeeds, but does not create side effects.
-      Expect.equals(1, a[0]);
-    } on TypeError catch (error) {
-      result = 100;
-    }
-    return result;
-  }
-
-  static testArgument() {
-    int f(int i) {
-      return i;
-    }
-    int i = f("hello"); //# 03: compile-time error
-    return 1;
-  }
-
-  static testReturn() {
-    int f(String s) { //# 04: continued
-      return s; //# 04: compile-time error
-    } //# 04: continued
-
-    int i = f("hello"); //# 04: continued
-    return 1;
-  }
-
-  static int field;
-  static testField() {
-    field = "hello"; //# 05: compile-time error
-    return 1;
-  }
-
-  static testAnyFunction() {
-    Function anyFunction;
-    f() {}
-    anyFunction = f; // No error.
-    int i = f; //# 06: compile-time error
-    return 1;
-  }
-
-  static testVoidFunction() {
-    Function anyFunction;
-    void acceptVoidFunObj(void voidFunObj(Object obj)) {}
-    void acceptObjFunObj(Object objFunObj(Object obj)) {}
-    void voidFunObj(Object obj) {}
-    Object objFunObj(Object obj) {
-      return obj;
-    }
-
-    ;
-    anyFunction = voidFunObj; // No error.
-    anyFunction = objFunObj; // No error.
-    acceptVoidFunObj(voidFunObj);
-    acceptVoidFunObj(objFunObj);
-    acceptObjFunObj(objFunObj);
-    acceptObjFunObj(voidFunObj);
-    return 1;
-  }
-
-  static testFunctionNum() {
-    Function anyFunction;
-    void acceptFunNum(void funNum(num n)) {}
-    void funObj(Object obj) {}
-    void funNum(num n) {}
-    void funInt(int i) {}
-    void funString(String s) {}
-    anyFunction = funObj; // No error.
-    anyFunction = funNum; // No error.
-    anyFunction = funInt; // No error.
-    anyFunction = funString; // No error.
-    acceptFunNum(funObj); // No error.
-    acceptFunNum(funNum); // No error.
-    acceptFunNum(funInt); //# 27: compile-time error
-    acceptFunNum(funString); //# 08: compile-time error
-    return 1;
-  }
-
-  static testBoolCheck() {
-      bool i = !"hello"; //# 09: compile-time error
-      while ("hello") {} //# 10: compile-time error
-      do {} while ("hello"); //# 11: compile-time error
-      for (; "hello";) {} //# 12: compile-time error
-      int i = "hello" ? 1 : 0; //# 13: compile-time error
-      if ("hello") {} //# 14: compile-time error
-      if ("hello" || false) {} //# 15: compile-time error
-      if (false || "hello") {} //# 16: compile-time error
-      if (null) {}             //# 28: runtime error
-    return 9;
-  }
-
-  static int testFactory() {
-    var x = new C(); //# 01: continued
-    return 1;
-  }
-
-  static int testListAssignment() {
-    int result = 0;
-    {
-      var a = new List<dynamic>.filled(5, null);
-      List a0 = a;
-      List<Object> ao = a;  // No error.
-      List<int> ai = a;  //# 30: runtime error
-      List<num> an = a;  //# 31: runtime error
-      List<String> as = a;  //# 32: runtime error
-    }
-    {
-      var a = new List<Object>.filled(5, null);
-      List a0 = a;
-      List<Object> ao = a;
-      List<int> ai = a;  //# 33: runtime error
-      List<num> an = a;  //# 34: runtime error
-      List<String> as = a;  //# 35: runtime error
-    }
-    {
-      var a = new List<int>.filled(5, null);
-      List a0 = a;
-      List<Object> ao = a;
-      List<int> ai = a;
-      List<num> an = a;
-      List<String> as = a; //# 22: compile-time error
-    }
-    {
-      var a = new List<num>.filled(5, null);
-      List a0 = a;
-      List<Object> ao = a;
-      List<int> ai = a;  //# 36: runtime error
-      List<num> an = a;
-      List<String> as = a; //# 24: compile-time error
-    }
-    {
-      var a = new List<String>.filled(5, null);
-      List a0 = a;
-      List<Object> ao = a;
-      List<int> ai = a; //# 25: compile-time error
-      List<num> an = a; //# 26: compile-time error
-      List<String> as = a;
-    }
-    return 8;
-  }
-
-  static testMain() {
-    Expect.equals(1, test());
-    Expect.equals(1, testSideEffect());
-    Expect.equals(1, testArgument());
-    Expect.equals(1, testReturn());
-    Expect.equals(1, testField());
-    Expect.equals(1, testAnyFunction());
-    Expect.equals(1, testVoidFunction());
-    Expect.equals(1, testFunctionNum());
-    Expect.equals(9, testBoolCheck());
-    Expect.equals(1, testFactory());
-    Expect.equals(8, testListAssignment());
-  }
-}
-
-main() {
-  TypeTest.testMain();
-}
diff --git a/tests/language_2/vm/uint32_add_test.dart b/tests/language_2/vm/uint32_add_test.dart
deleted file mode 100644
index 4c30e8e604b..00000000000
--- a/tests/language_2/vm/uint32_add_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization_counter_threshold=10 --no-background_compilation
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-trunc(x) => x & 0xFFFFFFFF;
-
-f(t, x) => t(x) + 1;
-
-g(t, x) => t(x + 1);
-
-// Foo should be entirely replaced by Uint32 operations. Running with
-// --trace-integer-ir-selection should result in:
-//    CheckStackOverflow:4()
-//    v22 <- UnboxUint32:14(v2)
-//    v24 <- UnboxUint32:14(v3)
-//    v6 <- BinaryUint32Op:14(+, v22 , v24 )
-//    v26 <- UnboxUint32:22(v4)
-//    v8 <- BinaryUint32Op:22(+, v6 , v26 )
-//    v28 <- UnboxUint32:30(v5)
-//    v10 <- BinaryUint32Op:30(+, v8 , v28 )
-//    v30 <- UnboxUint32:14(v21)
-//    v19 <- BinaryUint32Op:14(&, v10 , v30 )
-//    v32 <- BoxUint32:90(v19 )
-//    Return:38(v32 )
-foo(a, b, c, i) {
-  return trunc(a + b + c + i);
-}
-
-main() {
-  for (var i = 0; i < 20000; i++) {
-    Expect.equals(0x100000000, f(trunc, 0xFFFFFFFF));
-    Expect.equals(0x0, g(trunc, 0xFFFFFFFF));
-  }
-
-  var a = 0xFFFFFFFF;
-  var b = 0xCCCCCCCC;
-  var c = 0x33333335;
-
-  for (var i = 0; i < 20000; i++) {
-    Expect.equals(i, foo(a, b, c, i));
-  }
-}
diff --git a/tests/language_2/vm/uint32_right_shift_test.dart b/tests/language_2/vm/uint32_right_shift_test.dart
deleted file mode 100644
index f755584d102..00000000000
--- a/tests/language_2/vm/uint32_right_shift_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization_counter_threshold=10 --no-background_compilation
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-trunc(x) => x & 0xFFFFFFFF;
-
-foo(t, x) => t(x >> 15);
-
-main() {
-  for (var i = 0; i < 20000; i++) {
-    Expect.equals(0x00010000, foo(trunc, 0x80000000));
-  }
-  for (var i = 0; i < 20000; i++) {
-    Expect.equals(0x10000000, foo(trunc, 0x80000000000));
-  }
-}
diff --git a/tests/language_2/vm/uint32_shift_test.dart b/tests/language_2/vm/uint32_shift_test.dart
deleted file mode 100644
index 2c8a53070e0..00000000000
--- a/tests/language_2/vm/uint32_shift_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization_counter_threshold=10 --no-background_compilation
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-class Good {
-  use(x) {
-    return x & 0x1;
-  }
-}
-
-class Bad {
-  use(x) {
-    return x & 0x100000000;
-  }
-}
-
-f(o, x) => o.use(x << 1);
-
-main() {
-  final good = new Good();
-  final bad = new Bad();
-  for (var i = 0; i < 20000; i++) {
-    Expect.equals(0, f(good, 0x80000000));
-  }
-  Expect.equals(0x100000000, f(bad, 0x80000000));
-}
diff --git a/tests/language_2/vm/unaligned_float_access_literal_index_test.dart b/tests/language_2/vm/unaligned_float_access_literal_index_test.dart
deleted file mode 100644
index 80be22599e2..00000000000
--- a/tests/language_2/vm/unaligned_float_access_literal_index_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization_counter_threshold=10 --no-background_compilation
-
-// @dart = 2.9
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-unalignedFloat32() {
-  var bytes = new ByteData(64);
-  bytes.setFloat32(0, 16.25, Endian.host);
-  Expect.equals(16.25, bytes.getFloat32(0, Endian.host));
-  bytes.setFloat32(1, 32.125, Endian.host);
-  Expect.equals(32.125, bytes.getFloat32(1, Endian.host));
-  bytes.setFloat32(2, 16.25, Endian.host);
-  Expect.equals(16.25, bytes.getFloat32(2, Endian.host));
-  bytes.setFloat32(3, 32.125, Endian.host);
-  Expect.equals(32.125, bytes.getFloat32(3, Endian.host));
-}
-
-unalignedFloat64() {
-  var bytes = new ByteData(64);
-  bytes.setFloat64(0, 16.25, Endian.host);
-  Expect.equals(16.25, bytes.getFloat64(0, Endian.host));
-  bytes.setFloat64(1, 32.125, Endian.host);
-  Expect.equals(32.125, bytes.getFloat64(1, Endian.host));
-  bytes.setFloat64(2, 16.25, Endian.host);
-  Expect.equals(16.25, bytes.getFloat64(2, Endian.host));
-  bytes.setFloat64(3, 32.125, Endian.host);
-  Expect.equals(32.125, bytes.getFloat64(3, Endian.host));
-  bytes.setFloat64(4, 16.25, Endian.host);
-  Expect.equals(16.25, bytes.getFloat64(4, Endian.host));
-  bytes.setFloat64(5, 32.125, Endian.host);
-  Expect.equals(32.125, bytes.getFloat64(5, Endian.host));
-  bytes.setFloat64(6, 16.25, Endian.host);
-  Expect.equals(16.25, bytes.getFloat64(6, Endian.host));
-  bytes.setFloat64(7, 32.125, Endian.host);
-  Expect.equals(32.125, bytes.getFloat64(7, Endian.host));
-}
-
-main() {
-  for (var i = 0; i < 20; i++) {
-    unalignedFloat32();
-    unalignedFloat64();
-  }
-}
diff --git a/tests/language_2/vm/unaligned_float_access_register_index_test.dart b/tests/language_2/vm/unaligned_float_access_register_index_test.dart
deleted file mode 100644
index c654599d518..00000000000
--- a/tests/language_2/vm/unaligned_float_access_register_index_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization_counter_threshold=10 --no-background_compilation
-
-// @dart = 2.9
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-unalignedFloat32() {
-  var bytes = new ByteData(64);
-  for (var i = 0; i < 4; i++) {
-    bytes.setFloat32(i, 16.25, Endian.host);
-    Expect.equals(16.25, bytes.getFloat32(i, Endian.host));
-  }
-}
-
-unalignedFloat64() {
-  var bytes = new ByteData(64);
-  for (var i = 0; i < 8; i++) {
-    bytes.setFloat64(i, 16.25, Endian.host);
-    Expect.equals(16.25, bytes.getFloat64(i, Endian.host));
-  }
-}
-
-main() {
-  for (var i = 0; i < 20; i++) {
-    unalignedFloat32();
-    unalignedFloat64();
-  }
-}
diff --git a/tests/language_2/vm/unaligned_integer_access_literal_index_test.dart b/tests/language_2/vm/unaligned_integer_access_literal_index_test.dart
deleted file mode 100644
index 8f6937a8a6a..00000000000
--- a/tests/language_2/vm/unaligned_integer_access_literal_index_test.dart
+++ /dev/null
@@ -1,100 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization_counter_threshold=10 --no-background_compilation
-
-// @dart = 2.9
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-unalignedUint16() {
-  var bytes = new ByteData(64);
-  bytes.setUint16(0, 0xABCD, Endian.host);
-  Expect.equals(0xABCD, bytes.getUint16(0, Endian.host));
-  bytes.setUint16(1, 0xBCDE, Endian.host);
-  Expect.equals(0xBCDE, bytes.getUint16(1, Endian.host));
-}
-
-unalignedInt16() {
-  var bytes = new ByteData(64);
-  bytes.setInt16(0, -0x1234, Endian.host);
-  Expect.equals(-0x1234, bytes.getInt16(0, Endian.host));
-  bytes.setInt16(1, -0x2345, Endian.host);
-  Expect.equals(-0x2345, bytes.getInt16(1, Endian.host));
-}
-
-unalignedUint32() {
-  var bytes = new ByteData(64);
-  bytes.setUint32(0, 0xABCDABCD, Endian.host);
-  Expect.equals(0xABCDABCD, bytes.getUint32(0, Endian.host));
-  bytes.setUint32(1, 0xBCDEBCDE, Endian.host);
-  Expect.equals(0xBCDEBCDE, bytes.getUint32(1, Endian.host));
-  bytes.setUint32(2, 0xABCDABCD, Endian.host);
-  Expect.equals(0xABCDABCD, bytes.getUint32(2, Endian.host));
-  bytes.setUint32(3, 0xBCDEBCDE, Endian.host);
-  Expect.equals(0xBCDEBCDE, bytes.getUint32(3, Endian.host));
-}
-
-unalignedInt32() {
-  var bytes = new ByteData(64);
-  bytes.setInt32(0, -0x12341234, Endian.host);
-  Expect.equals(-0x12341234, bytes.getInt32(0, Endian.host));
-  bytes.setInt32(1, -0x23452345, Endian.host);
-  Expect.equals(-0x23452345, bytes.getInt32(1, Endian.host));
-  bytes.setInt32(2, -0x12341234, Endian.host);
-  Expect.equals(-0x12341234, bytes.getInt32(2, Endian.host));
-  bytes.setInt32(3, -0x23452345, Endian.host);
-  Expect.equals(-0x23452345, bytes.getInt32(3, Endian.host));
-}
-
-unalignedUint64() {
-  var bytes = new ByteData(64);
-  bytes.setUint64(0, 0xABCDABCD12345678, Endian.host);
-  Expect.equals(0xABCDABCD12345678, bytes.getUint64(0, Endian.host));
-  bytes.setUint64(1, 0xBCDEBCDE12345678, Endian.host);
-  Expect.equals(0xBCDEBCDE12345678, bytes.getUint64(1, Endian.host));
-  bytes.setUint64(2, 0xABCDABCD12345678, Endian.host);
-  Expect.equals(0xABCDABCD12345678, bytes.getUint64(2, Endian.host));
-  bytes.setUint64(3, 0xBCDEBCDE12345678, Endian.host);
-  Expect.equals(0xBCDEBCDE12345678, bytes.getUint64(3, Endian.host));
-  bytes.setUint64(4, 0xABCDABCD12345678, Endian.host);
-  Expect.equals(0xABCDABCD12345678, bytes.getUint64(4, Endian.host));
-  bytes.setUint64(5, 0xBCDEBCDE12345678, Endian.host);
-  Expect.equals(0xBCDEBCDE12345678, bytes.getUint64(5, Endian.host));
-  bytes.setUint64(6, 0xABCDABCD12345678, Endian.host);
-  Expect.equals(0xABCDABCD12345678, bytes.getUint64(6, Endian.host));
-  bytes.setUint64(7, 0xBCDEBCDE12345678, Endian.host);
-  Expect.equals(0xBCDEBCDE12345678, bytes.getUint64(7, Endian.host));
-}
-
-unalignedInt64() {
-  var bytes = new ByteData(64);
-  bytes.setInt64(0, -0x12341234ABCDABCD, Endian.host);
-  Expect.equals(-0x12341234ABCDABCD, bytes.getInt64(0, Endian.host));
-  bytes.setInt64(1, -0x23452345ABCDABCD, Endian.host);
-  Expect.equals(-0x23452345ABCDABCD, bytes.getInt64(1, Endian.host));
-  bytes.setInt64(2, -0x12341234ABCDABCD, Endian.host);
-  Expect.equals(-0x12341234ABCDABCD, bytes.getInt64(2, Endian.host));
-  bytes.setInt64(3, -0x23452345ABCDABCD, Endian.host);
-  Expect.equals(-0x23452345ABCDABCD, bytes.getInt64(3, Endian.host));
-  bytes.setInt64(4, -0x12341234ABCDABCD, Endian.host);
-  Expect.equals(-0x12341234ABCDABCD, bytes.getInt64(4, Endian.host));
-  bytes.setInt64(5, -0x23452345ABCDABCD, Endian.host);
-  Expect.equals(-0x23452345ABCDABCD, bytes.getInt64(5, Endian.host));
-  bytes.setInt64(6, -0x12341234ABCDABCD, Endian.host);
-  Expect.equals(-0x12341234ABCDABCD, bytes.getInt64(6, Endian.host));
-  bytes.setInt64(7, -0x23452345ABCDABCD, Endian.host);
-  Expect.equals(-0x23452345ABCDABCD, bytes.getInt64(7, Endian.host));
-}
-
-main() {
-  for (var i = 0; i < 20; i++) {
-    unalignedUint16();
-    unalignedInt16();
-    unalignedUint32();
-    unalignedInt32();
-    unalignedUint64();
-    unalignedInt64();
-  }
-}
diff --git a/tests/language_2/vm/unaligned_integer_access_register_index_test.dart b/tests/language_2/vm/unaligned_integer_access_register_index_test.dart
deleted file mode 100644
index d949ea5c0c2..00000000000
--- a/tests/language_2/vm/unaligned_integer_access_register_index_test.dart
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization_counter_threshold=10 --no-background_compilation
-
-// @dart = 2.9
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-unalignedUint16() {
-  var bytes = new ByteData(64);
-  for (var i = 0; i < 2; i++) {
-    bytes.setUint16(i, 0xABCD, Endian.host);
-    Expect.equals(0xABCD, bytes.getUint16(i, Endian.host));
-  }
-}
-
-unalignedInt16() {
-  var bytes = new ByteData(64);
-  for (var i = 0; i < 2; i++) {
-    bytes.setInt16(i, -0x1234, Endian.host);
-    Expect.equals(-0x1234, bytes.getInt16(i, Endian.host));
-  }
-}
-
-unalignedUint32() {
-  var bytes = new ByteData(64);
-  for (var i = 0; i < 4; i++) {
-    bytes.setUint32(i, 0xABCDABCD, Endian.host);
-    Expect.equals(0xABCDABCD, bytes.getUint32(i, Endian.host));
-  }
-}
-
-unalignedInt32() {
-  var bytes = new ByteData(64);
-  for (var i = 0; i < 4; i++) {
-    bytes.setInt32(i, -0x12341234, Endian.host);
-    Expect.equals(-0x12341234, bytes.getInt32(i, Endian.host));
-  }
-}
-
-unalignedUint64() {
-  var bytes = new ByteData(64);
-  for (var i = 0; i < 8; i++) {
-    bytes.setUint64(i, 0xABCDABCD12345678, Endian.host);
-    Expect.equals(0xABCDABCD12345678, bytes.getUint64(i, Endian.host));
-  }
-}
-
-unalignedInt64() {
-  var bytes = new ByteData(64);
-  for (var i = 0; i < 8; i++) {
-    bytes.setInt64(i, -0x12341234ABCDABCD, Endian.host);
-    Expect.equals(-0x12341234ABCDABCD, bytes.getInt64(i, Endian.host));
-  }
-}
-
-main() {
-  for (var i = 0; i < 20; i++) {
-    unalignedUint16();
-    unalignedInt16();
-    unalignedUint32();
-    unalignedInt32();
-    unalignedUint64();
-    unalignedInt64();
-  }
-}
diff --git a/tests/language_2/vm/unique_selector_test.dart b/tests/language_2/vm/unique_selector_test.dart
deleted file mode 100644
index ce637037e53..00000000000
--- a/tests/language_2/vm/unique_selector_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-class A {
-  _unique_method() => "foo";
-  bar() => "A";
-}
-
-class B {
-  noSuchMethod(invocation) => "nsm";
-  bar() => "B";
-}
-
-confuse(x) {
-  try {
-    throw x;
-  } catch (e) {
-    return e;
-  }
-  return null;
-}
-
-main() {
-  var a = confuse(new A());
-  Expect.equals("foo", a._unique_method());
-  Expect.equals("A", a.bar());
-
-  var b = confuse(new B());
-  Expect.equals("nsm", b._unique_method());
-  Expect.equals("B", b.bar()); // Don't propagate type A to b.
-}
diff --git a/tests/language_2/vm/unreachable_code_test.dart b/tests/language_2/vm/unreachable_code_test.dart
deleted file mode 100644
index f16ca815991..00000000000
--- a/tests/language_2/vm/unreachable_code_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verifies that VM is able to handle certain cases of unreachable code.
-
-// VMOptions=--no_background_compilation --optimization_counter_threshold=10
-
-import "package:expect/expect.dart";
-
-class A {
-  dynamic next;
-}
-
-test1(A arg1, bool arg2, bool arg3) {
-  assert(arg1.next == (arg2 ?? arg3));
-}
-
-test2(A arg1, bool arg2, bool arg3) {
-  print(((throw 'Error') as dynamic).next == (arg2 ?? arg3));
-}
-
-void doTests() {
-  test1(new A(), null, null);
-  Expect.throws(() {
-    test2(new A(), null, null);
-  });
-}
-
-void main() {
-  for (int i = 0; i < 20; i++) {
-    doTests();
-  }
-}
diff --git a/tests/language_2/vm/unregistered_closure_in_finally_test.dart b/tests/language_2/vm/unregistered_closure_in_finally_test.dart
deleted file mode 100644
index 5b7e30bda51..00000000000
--- a/tests/language_2/vm/unregistered_closure_in_finally_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--no-background-compilation
-
-// @dart = 2.9
-
-@pragma('vm:never-inline')
-doSomething() {
-  print("Hello!");
-}
-
-@pragma('vm:never-inline')
-maybeThrow(bool doThrow) {
-  if (doThrow) {
-    throw new Exception();
-  }
-}
-
-@pragma('vm:never-inline')
-run(action) {
-  try { action(); } catch(e) {}
-}
-
-test(bool doThrow) {
-  try {
-    maybeThrow(doThrow);
-  } finally {
-    run(() {
-      doSomething();  // Should not crash here.
-    });
-  }
-}
-
-main() {
-  try { test(true); } catch(e) {}
-  try { test(false); } catch(e) {}
-}
diff --git a/tests/language_2/void/README.md b/tests/language_2/void/README.md
deleted file mode 100644
index ad7fa6b07a9..00000000000
--- a/tests/language_2/void/README.md
+++ /dev/null
@@ -1,10 +0,0 @@
-# Feature tests for void
-
-This directory was created in order to hold tests pertaining to the
-Dart feature temporarily known as _generalized void_. This feature
-allows the type `void` to occur in many locations where it was
-previously a compile-time error, and it is intended to allow
-developers to express the intent that the value of certain expressions
-is of no interest, and help them to avoid using such values. For more
-details, please check the
-[feature specification](https://github.com/dart-lang/sdk/blob/main/docs/language/informal/generalized-void.md).
\ No newline at end of file
diff --git a/tests/language_2/void/await_void_test.dart b/tests/language_2/void/await_void_test.dart
deleted file mode 100644
index 82e4c3ce99c..00000000000
--- a/tests/language_2/void/await_void_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// [NNBD non-migrated] This test has no NNBD equivalent.
-// In NNBD, you are not allowed to await `void` and the corresponding test
-// is await_void_error_test.dart
-
-// Test that it is not an error to await an expression of type `void`.
-
-import "dart:async";
-
-void v;
-List<void> vs = [null];
-FutureOr<void> fov;
-
-void main() async {
-  await print('');
-  await v;
-  await vs[0];
-  var v2 = vs[0];
-  await v2;
-  await fov;
-}
diff --git a/tests/language_2/void/generalized_void_syntax_test.dart b/tests/language_2/void/generalized_void_syntax_test.dart
deleted file mode 100644
index 637724a5d68..00000000000
--- a/tests/language_2/void/generalized_void_syntax_test.dart
+++ /dev/null
@@ -1,148 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing that the reserved word `void` is allowed to occur as a type, not
-// just as a return type.
-
-typedef F = void Function(Object);
-typedef F2 = void Function([Object]);
-typedef F3 = void Function({Object x});
-
-typedef G = void Function(void);
-typedef G2 = void Function([void]);
-typedef G3 = void Function({void x});
-
-typedef H = int Function(void);
-typedef H2 = int Function([void]);
-typedef H3 = int Function({void x});
-
-class A<T> {
-  final T t;
-  const A(this.t);
-}
-
-const void x1 = null;
-const A<void> x2 = const A<void>(null);
-
-final void x3 = null;
-final A<void> x4 = new A<void>(null);
-
-void x5 = null, x6;
-A<void> x7 = new A<void>(null), x8;
-
-void get g1 => null;
-A<void> get g2 => new A<void>(null);
-void set s1(void x) => null;
-void set s2(A<void> x) => null;
-void m1(void x, [void y]) => null;
-void m2(void x, {void y}) => null;
-A<void> m3(A<void> x, [A<void> y]) => new A<void>(null);
-A<void> m4(A<void> x, {A<void> y}) => new A<void>(null);
-
-class B<S, T> implements A<void> {
-  void get t => null;
-}
-
-class C extends A<void> with B<void, A<void>> {
-  C() : super(null);
-
-  static final void x1 = null;
-  static final A<void> x2 = new A<void>(null);
-
-  static const void x3 = null;
-  static const A<void> x4 = const A<void>(null);
-
-  final void x5 = null;
-  final A<void> x6 = new A<void>(null);
-
-  static void x7 = null, x8;
-  static A<void> x9 = new A<void>(null), x10;
-
-  covariant void x11 = null, x12;
-  covariant A<void> x13 = new A<void>(null), x14;
-
-  static void get g1 => null;
-  static A<void> get g2 => new A<void>(null);
-  static void set s1(void x) => null;
-  static void set s2(A<void> x) => null;
-  static void m1(void x, [void y]) => null;
-  static void m2(void x, {void y}) => null;
-  static A<void> m3(A<void> x, [A<void> y]) => null;
-  static A<void> m4(A<void> x, {A<void> y}) => null;
-
-  void get g3 => null;
-  A<void> get g4 => new A<void>(null);
-  void set s3(void x) => null;
-  void set s4(A<void> x) => null;
-  void m5(void x, [void y]) => null;
-  void m6(void x, {void y}) => null;
-  A<void> m7(A<void> x, [A<void> y]) => null;
-  A<void> m8(A<void> x, {A<void> y}) => null;
-
-  // Ensure that all members are used, and use `void` in expressions.
-  void run() {
-    x1;
-    x2;
-    x3;
-    x4;
-    x5;
-    x6;
-    x7;
-    x8;
-    x9;
-    x10;
-    x11;
-    x12;
-    x13;
-    x14;
-    g1;
-    g2;
-    g3;
-    g4;
-
-    s1 = null;
-    s2 = new A<void>(null);
-    s3 = null;
-    s4 = new A<void>(null);
-    m1(null, null);
-    m2(null, y: null);
-    m3(null, new A<void>(null));
-    m4(null, y: new A<void>(null));
-    m5(null, null);
-    m6(null, y: null);
-    m7(null, new A<void>(null));
-    m8(null, y: new A<void>(null));
-
-    void pretendToUse(dynamic x) => null;
-    pretendToUse(<void>[]);
-    pretendToUse(<void, void>{});
-    pretendToUse(<A<void>>[]);
-    pretendToUse(<A<void>, A<void>>{});
-  }
-}
-
-// Testing syntax, just enforce compilation.
-main() {
-  // ignore
-  x1;
-  x2;
-  x3;
-  x4;
-  x5;
-  x6;
-  x7;
-  x8;
-  g1;
-  g2;
-
-  s1 = null;
-  s2 = new A<void>(null);
-  m1(null, null);
-  m2(null, y: null);
-  m3(null, null);
-  m4(null, y: null);
-  new C().run();
-}
diff --git a/tests/language_2/void/generalized_void_usage_test.dart b/tests/language_2/void/generalized_void_usage_test.dart
deleted file mode 100644
index 8fffbba8f3c..00000000000
--- a/tests/language_2/void/generalized_void_usage_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test for static checks on situations where expressions of type void
-// can be used. The point is simply that there are no compile-time errors.
-
-// We need expressions of type `void`; `void x` would do, but using
-// `void get x` will work with tools that do not yet handle `void x`.
-void get x => null;
-
-void use(dynamic x) {}
-
-main() {
-  // In an expressionStatement `e;`, e may have type void.
-  x;
-
-  // In the initialization and increment expressions of a for-loop,
-  // `for (e1; e2; e3) {..}`, `e1` and `e3` may have type void.
-  for (x;; x) {
-    break;
-  }
-
-  // In a typeCast `e as T`, `e` may have type void.
-  var y = x as Object;
-
-  // In a parenthesized expression `(e)`, `e` may have type void.
-  (x);
-
-  // In a return statement `return e;`, when the return type of the
-  // innermost enclosing function is the type void, e may have type void.
-  void f() => x;
-
-  void g() {
-    return x;
-  }
-}
diff --git a/tests/language_2/void/return_future_future_or_void_async_error0_test.dart b/tests/language_2/void/return_future_future_or_void_async_error0_test.dart
deleted file mode 100644
index aeea15de1d9..00000000000
--- a/tests/language_2/void/return_future_future_or_void_async_error0_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-void voidValue = null;
-
-void main() {
-  test();
-}
-
-// Testing that a block bodied async function may not return void
-Future<FutureOr<void>> test() async {
-  return voidValue;
-  //     ^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] This expression has type 'void' and can't be used.
-}
diff --git a/tests/language_2/void/return_future_future_or_void_async_error1_test.dart b/tests/language_2/void/return_future_future_or_void_async_error1_test.dart
deleted file mode 100644
index 6a560d5892c..00000000000
--- a/tests/language_2/void/return_future_future_or_void_async_error1_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-void main() {
-  test();
-}
-
-// Testing that a block bodied async function may not have an empty return
-Future<FutureOr<void>> test() async {
-  return; //# none: compile-time error
-}
diff --git a/tests/language_2/void/return_future_future_or_void_async_test.dart b/tests/language_2/void/return_future_future_or_void_async_test.dart
deleted file mode 100644
index 08bf6a05797..00000000000
--- a/tests/language_2/void/return_future_future_or_void_async_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-void voidValue = null;
-
-void main() {
-  test1();
-  test4();
-  test5();
-  test6();
-  test7();
-  test8();
-}
-
-// Testing that a block bodied async function may have no return
-Future<FutureOr<void>> test1() async {}
-
-// Testing that a block bodied async function may return Future<FutureOr<void>>
-Future<FutureOr<void>> test4([bool b]) async {
-  return null as Future<FutureOr<void>>;
-}
-
-// Testing that a block bodied async function may return Future<Future<void>>
-Future<FutureOr<void>> test5([bool b]) async {
-  return null as Future<Future<void>>;
-}
-
-// Testing that a block bodied async function may return FutureOr<Future<void>>
-Future<FutureOr<void>> test6([bool b]) async {
-  return null as FutureOr<Future<void>>;
-}
-
-// Testing that a block bodied async function may return non-void
-// values
-Future<FutureOr<void>> test7() async {
-  return 42;
-}
-
-// Testing that a block bodied async function may return non-void
-// Future values
-Future<FutureOr<void>> test8() async {
-  return new Future<int>.value(42);
-}
diff --git a/tests/language_2/void/return_future_future_or_void_sync_error0_test.dart b/tests/language_2/void/return_future_future_or_void_sync_error0_test.dart
deleted file mode 100644
index 20bd935ed8d..00000000000
--- a/tests/language_2/void/return_future_future_or_void_sync_error0_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-void voidValue = null;
-
-void main() {
-  test();
-}
-
-// Testing that a block bodied function may not return void
-Future<FutureOr<void>> test() {
-  return voidValue;
-  //     ^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] This expression has type 'void' and can't be used.
-}
diff --git a/tests/language_2/void/return_future_future_or_void_sync_error1_test.dart b/tests/language_2/void/return_future_future_or_void_sync_error1_test.dart
deleted file mode 100644
index 87adcd531d3..00000000000
--- a/tests/language_2/void/return_future_future_or_void_sync_error1_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-void main() {
-  test();
-}
-
-// Testing that a block bodied function may not have an empty return
-Future<FutureOr<void>> test() {
-  return;
-//^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.RETURN_WITHOUT_VALUE
-// [cfe] Must explicitly return a value from a non-void function.
-}
diff --git a/tests/language_2/void/return_future_future_or_void_sync_test.dart b/tests/language_2/void/return_future_future_or_void_sync_test.dart
deleted file mode 100644
index a06fd120f76..00000000000
--- a/tests/language_2/void/return_future_future_or_void_sync_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-void voidValue = null;
-
-void main() {
-  test1();
-  test2();
-  test3();
-  test4();
-}
-
-// Testing that a block bodied function may have no return
-Future<FutureOr<void>> test1() {}
-
-// Testing that a block bodied function may return Future<void>
-Future<FutureOr<void>> test2() {
-  return null as Future<void>;
-}
-
-// Testing that a block bodied function may return FutureOr<void>
-Future<FutureOr<void>> test3() {
-  return null as Future<FutureOr<void>>;
-}
-
-// Testing that a block bodied function may return non-void Future values
-Future<FutureOr<void>> test4() {
-  return new Future.value(42);
-}
diff --git a/tests/language_2/void/return_future_or_future_or_void_sync_error1_test.dart b/tests/language_2/void/return_future_or_future_or_void_sync_error1_test.dart
deleted file mode 100644
index 52aeded54d8..00000000000
--- a/tests/language_2/void/return_future_or_future_or_void_sync_error1_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-void voidValue = null;
-
-void main() {
-  test();
-}
-
-// Testing that a block bodied function may not return void
-FutureOr<FutureOr<void>> test() {
-  return voidValue;
-  //     ^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] This expression has type 'void' and can't be used.
-}
diff --git a/tests/language_2/void/return_future_or_future_or_void_sync_error2_test.dart b/tests/language_2/void/return_future_or_future_or_void_sync_error2_test.dart
deleted file mode 100644
index 23d797f6249..00000000000
--- a/tests/language_2/void/return_future_or_future_or_void_sync_error2_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-void main() {
-  test();
-}
-
-// Testing that a block bodied function may have an empty return
-FutureOr<FutureOr<void>> test() {
-  return; //# none: compile-time error
-}
diff --git a/tests/language_2/void/return_future_or_future_or_void_sync_test.dart b/tests/language_2/void/return_future_or_future_or_void_sync_test.dart
deleted file mode 100644
index cb17483e28b..00000000000
--- a/tests/language_2/void/return_future_or_future_or_void_sync_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-void voidValue = null;
-
-void main() {
-  test1();
-  test2();
-  test3();
-  test4();
-  test5();
-  test6();
-}
-
-// Testing that a block bodied function may have no return
-FutureOr<FutureOr<void>> test1() {}
-
-// Testing that a block bodied function may return Future<void>
-FutureOr<FutureOr<void>> test2() {
-  return null as Future<void>;
-}
-
-// Testing that a block bodied function may return FutureOr<void>
-FutureOr<FutureOr<void>> test3() {
-  return null as FutureOr<void>;
-}
-
-// Testing that a block bodied function may return Future<void>
-FutureOr<FutureOr<void>> test4() {
-  return null as Future<Future<void>>;
-}
-
-// Testing that a block bodied function may return non-void values
-FutureOr<FutureOr<void>> test5() {
-  return 42;
-}
-
-// Testing that a block bodied function may return non-void Future values
-FutureOr<FutureOr<void>> test6() {
-  return new Future.value(42);
-}
-
-// Testing that a block bodied function may return overly nested Future
-// values
-FutureOr<FutureOr<void>> test() {
-  return null as Future<Future<Future<void>>>;
-}
diff --git a/tests/language_2/void/return_future_or_void_async_test.dart b/tests/language_2/void/return_future_or_void_async_test.dart
deleted file mode 100644
index 3ad4c4e1195..00000000000
--- a/tests/language_2/void/return_future_or_void_async_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-void voidValue = null;
-
-void main() {
-  test0();
-  test1();
-  test2();
-  test3();
-  test6();
-}
-
-// Testing that a block bodied function may have an empty return
-FutureOr<void> test0() async {
-  return;
-}
-
-// Testing that a block bodied function may have no return
-FutureOr<void> test1() async {}
-
-// Testing that a block bodied function may return Future<void>
-FutureOr<void> test2() async {
-  return null as Future<void>;
-}
-
-// Testing that a block bodied function may return FutureOr<void>
-FutureOr<void> test3() async {
-  return null as FutureOr<void>;
-}
-
-// Testing that a block bodied function may return void
-FutureOr<void> test6() async {
-  return voidValue;
-}
diff --git a/tests/language_2/void/return_future_or_void_sync_error3_test.dart b/tests/language_2/void/return_future_or_void_sync_error3_test.dart
deleted file mode 100644
index c4d520f3eea..00000000000
--- a/tests/language_2/void/return_future_or_void_sync_error3_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-void voidValue = null;
-
-void main() {
-  test();
-}
-
-// Testing that a block bodied function may not return void
-FutureOr<void> test() {
-  return voidValue;
-  //     ^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] This expression has type 'void' and can't be used.
-}
diff --git a/tests/language_2/void/return_future_or_void_sync_error4_test.dart b/tests/language_2/void/return_future_or_void_sync_error4_test.dart
deleted file mode 100644
index c18d1d18b2e..00000000000
--- a/tests/language_2/void/return_future_or_void_sync_error4_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-void main() {
-  test();
-}
-
-// Testing that a block bodied function may not have an empty return
-FutureOr<void> test() {
-  return; //# none: compile-time error
-}
diff --git a/tests/language_2/void/return_future_or_void_sync_test.dart b/tests/language_2/void/return_future_or_void_sync_test.dart
deleted file mode 100644
index 74a97999c36..00000000000
--- a/tests/language_2/void/return_future_or_void_sync_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-void voidValue = null;
-
-void main() {
-  test1();
-  test2();
-  test3();
-  test4();
-  test5();
-  test6();
-}
-
-// Testing that a block bodied function may have no return
-FutureOr<void> test1() {}
-
-// Testing that a block bodied function may return Future<void>
-FutureOr<void> test2() {
-  return null as Future<void>;
-}
-
-// Testing that a block bodied function may return FutureOr<void>
-FutureOr<void> test3() {
-  return null as FutureOr<void>;
-}
-
-// Testing that a block bodied function may return Future<void>
-FutureOr<void> test4() {
-  return null as Future<Future<void>>;
-}
-
-// Testing that a block bodied function may return non-void values
-FutureOr<void> test5() {
-  return 42;
-}
-
-// Testing that a block bodied function may return non-void Future values
-FutureOr<void> test6() {
-  return new Future.value(42);
-}
diff --git a/tests/language_2/void/return_future_void_async_test.dart b/tests/language_2/void/return_future_void_async_test.dart
deleted file mode 100644
index 1cd7a154adb..00000000000
--- a/tests/language_2/void/return_future_void_async_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-void voidValue = null;
-
-void main() {
-  test0();
-  test1();
-  test2();
-  test3();
-  test4();
-  test5();
-  test6();
-}
-
-// Testing that a block bodied async function may have an empty return
-Future<void> test0() async {
-  return;
-}
-
-// Testing that a block bodied async function may have no return
-Future<void> test1() async {}
-
-// Testing that a block bodied async function may return Future<void>
-Future<void> test2([bool b]) async {
-  return null as Future<void>;
-}
-
-// Testing that a block bodied async function may return FutureOr<void>
-Future<void> test3([bool b]) async {
-  return null as FutureOr<void>;
-}
-
-// Testing that a block bodied async function may return null
-Future<void> test4([bool b]) async {
-  return null;
-}
-
-// Testing that a block bodied async function may return dynamic
-Future<void> test5([bool b]) async {
-  return null as dynamic;
-}
-
-// Testing that a block bodied async function return void
-Future<void> test6() async {
-  return voidValue;
-}
diff --git a/tests/language_2/void/return_void_async_error0_test.dart b/tests/language_2/void/return_void_async_error0_test.dart
deleted file mode 100644
index a8d941b5b5a..00000000000
--- a/tests/language_2/void/return_void_async_error0_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-void main() {
-  test();
-}
-
-// Testing that a block bodied async function may not return non-void non-top
-// values
-void test() async {
-  return 3;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] Can't return a value from a void function.
-}
diff --git a/tests/language_2/void/return_void_async_error1_test.dart b/tests/language_2/void/return_void_async_error1_test.dart
deleted file mode 100644
index 8bca1bf4692..00000000000
--- a/tests/language_2/void/return_void_async_error1_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-void main() {
-  test();
-}
-
-// Testing that a block bodied async function may not return non-void Object
-// values
-void test() async {
-  Object a = 3;
-  return a;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] Can't return a value from a void function.
-}
diff --git a/tests/language_2/void/return_void_async_error2_test.dart b/tests/language_2/void/return_void_async_error2_test.dart
deleted file mode 100644
index 3c12830dcf5..00000000000
--- a/tests/language_2/void/return_void_async_error2_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-void main() {
-  test();
-}
-
-// Testing that a block bodied async function may not return non-void Future
-// values
-void test() async {
-  return null as Future<int>;
-  //     ^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  //          ^
-  // [cfe] Can't return a value from a void function.
-}
diff --git a/tests/language_2/void/return_void_async_test.dart b/tests/language_2/void/return_void_async_test.dart
deleted file mode 100644
index 0ee020c90dd..00000000000
--- a/tests/language_2/void/return_void_async_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-void voidValue = null;
-
-void main() {
-  test0();
-  test1();
-  test2();
-  test3();
-  test4();
-  test5();
-  test6();
-}
-
-// Testing that a block bodied async function may have an empty return
-void test0() async {
-  return;
-}
-
-// Testing that a block bodied async function may have no return
-void test1() async {}
-
-// Testing that a block bodied async function may return void
-void test2() async {
-  return voidValue;
-}
-
-// Testing that a block bodied async function may have both empty returns
-//  and void returning paths
-void test3([bool b]) async {
-  if (b == null) {
-    return;
-  } else {
-    return voidValue;
-  }
-}
-
-// Testing that a block bodied async function may return Null
-void test4() async {
-  return null;
-}
-
-// Testing that a block bodied async function may return dynamic
-void test5() async {
-  return null as dynamic;
-}
-
-// Testing that a block bodied async function may return FutureOr<void>
-void test6() async {
-  return null as FutureOr<void>;
-}
diff --git a/tests/language_2/void/return_void_sync_error0_test.dart b/tests/language_2/void/return_void_sync_error0_test.dart
deleted file mode 100644
index 3a4a82fec7c..00000000000
--- a/tests/language_2/void/return_void_sync_error0_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-void main() {
-  test();
-}
-
-// Testing that a block bodied function may not return non-void non-top values
-void test() {
-  return 3;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] Can't return a value from a void function.
-}
diff --git a/tests/language_2/void/return_void_sync_error1_test.dart b/tests/language_2/void/return_void_sync_error1_test.dart
deleted file mode 100644
index ca95b691335..00000000000
--- a/tests/language_2/void/return_void_sync_error1_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-void main() {
-  test();
-}
-
-// Testing that a block bodied function may not return non-void Object values
-void test() {
-  Object a = 3;
-  return a;
-  //     ^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  // [cfe] Can't return a value from a void function.
-}
diff --git a/tests/language_2/void/return_void_sync_error2_test.dart b/tests/language_2/void/return_void_sync_error2_test.dart
deleted file mode 100644
index 2178975d9cd..00000000000
--- a/tests/language_2/void/return_void_sync_error2_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-void main() {
-  test();
-}
-
-// Testing that a block bodied function may not return FutureOr<void>
-void test() {
-  return null as FutureOr<void>;
-  //     ^^^^^^^^^^^^^^^^^^^^^^
-  // [analyzer] COMPILE_TIME_ERROR.RETURN_OF_INVALID_TYPE
-  //          ^
-  // [cfe] Can't return a value from a void function.
-}
diff --git a/tests/language_2/void/return_void_sync_test.dart b/tests/language_2/void/return_void_sync_test.dart
deleted file mode 100644
index 927e6750f3d..00000000000
--- a/tests/language_2/void/return_void_sync_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-void voidValue = null;
-
-void main() {
-  test0();
-  test1();
-  test2();
-  test3();
-}
-
-// Testing that a block bodied function may have an empty return
-void test0() {
-  return;
-}
-
-// Testing that a block bodied function may have no return
-void test1() {}
-
-// Testing that a block bodied function may return void
-void test2() {
-  return voidValue;
-}
-
-// Testing that a block bodied function may have both empty returns
-// and void returning paths
-void test3([bool b]) {
-  if (b == null) {
-    return;
-  } else if (b) {
-    return voidValue;
-  }
-}
diff --git a/tests/language_2/void/void_arrow_return_test.dart b/tests/language_2/void/void_arrow_return_test.dart
deleted file mode 100644
index 9d00757e917..00000000000
--- a/tests/language_2/void/void_arrow_return_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing that a void arrow function is allowed to return any type of value.
-
-void foo() => 42;
-void set bar(x) => 43;
-
-main() {
-  foo();
-  bar = 44;
-}
diff --git a/tests/language_2/void/void_block_return_test.dart b/tests/language_2/void/void_block_return_test.dart
deleted file mode 100644
index 8a3e793c308..00000000000
--- a/tests/language_2/void/void_block_return_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Testing that a void block function is not allowed to `return e`
-// where `e` is non-void.
-
-void foo() {
-  return 42; //# 00: compile-time error
-}
-
-main() {
-  foo();
-}
diff --git a/tests/language_2/void/void_check_test.dart b/tests/language_2/void/void_check_test.dart
deleted file mode 100644
index 73b6ce50550..00000000000
--- a/tests/language_2/void/void_check_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests that `void` accepts any value and won't throw on non-`null` values.
-// The test is set up in a way that `--trust-type-annotations` and type
-// propagation must not assume that `void` is `null` either.
-
-import 'package:expect/expect.dart';
-
-class A {
-  void foo() {
-    return bar();
-  }
-
-  void bar() {}
-}
-
-class B extends A {
-  int bar() => 42;
-}
-
-// Makes the typing cleaner: the return type here is `dynamic` and we are
-// guaranteed that there won't be any warnings.
-// Dart2js can still infer the type by itself.
-@pragma('dart2js:noInline')
-callFoo(A a) => a.foo();
-
-main() {
-  var a = new A();
-  var b = new B();
-  // The following line is not throwing, even though `a.foo()` (inside
-  // `callFoo`) is supposedly `void`.
-  callFoo(b).abs();
-  Expect.isNull(callFoo(a));
-  Expect.equals(42, callFoo(b));
-}
diff --git a/tests/language_2/void/void_subtype_test.dart b/tests/language_2/void/void_subtype_test.dart
deleted file mode 100644
index c6bab0e3a5d..00000000000
--- a/tests/language_2/void/void_subtype_test.dart
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for type checks involving the void type.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-var _str = new StringBuffer();
-
-T run<T>(T f()) {
-  _str.write("+");
-  var t = f();
-  _str.write("-");
-  return t;
-}
-
-void writeV() {
-  _str.write("V");
-}
-
-main() {
-  {
-    var x = run<dynamic>(writeV);
-    Expect.equals('+V-', _str.toString());
-    Expect.equals(null, x);
-    _str.clear();
-
-    var y = run(writeV) as dynamic;
-    Expect.equals('+V-', _str.toString());
-    Expect.equals(null, y);
-    _str.clear();
-  }
-
-  // implicit cast
-  {
-    dynamic d = writeV;
-    var x = run<dynamic>(d);
-    Expect.equals('+V-', _str.toString());
-    Expect.equals(null, x);
-    _str.clear();
-
-    var y = run(d);
-    Expect.equals('+V-', _str.toString());
-    Expect.equals(null, y);
-    _str.clear();
-  }
-
-  // dynamic dispatch
-  {
-    dynamic d = run;
-    var x = d<dynamic>(writeV);
-    Expect.equals('+V-', _str.toString());
-    Expect.equals(null, x);
-    _str.clear();
-
-    var y = d(writeV);
-    Expect.equals('+V-', _str.toString());
-    Expect.equals(null, y);
-    _str.clear();
-  }
-}
diff --git a/tests/language_2/void/void_type_callbacks_test.dart b/tests/language_2/void/void_type_callbacks_test.dart
deleted file mode 100644
index 2cc28752e68..00000000000
--- a/tests/language_2/void/void_type_callbacks_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test for type checks involving callbacks and the type void.
-
-import 'package:expect/expect.dart';
-
-class A<T> {
-  T x;
-
-  foo(T x) {}
-
-  T bar(T f()) {
-    T tmp = f();
-    return tmp;
-  }
-
-  gee(T f()) {
-    x = bar(f);
-  }
-
-  Object xAsObject() => x;
-}
-
-void voidFun() => 499;
-int intFun() => 42;
-
-main() {
-  A<void> a = new A<void>();
-  a.foo(a.x);
-  a.bar(voidFun);
-  Expect.equals(null, a.xAsObject());
-  a.x = a.bar(voidFun);
-  a.gee(voidFun);
-  Expect.equals(499, a.xAsObject());
-  a.gee(intFun);
-  Expect.equals(42, a.xAsObject());
-}
diff --git a/tests/language_2/void/void_type_function_types_test.dart b/tests/language_2/void/void_type_function_types_test.dart
deleted file mode 100644
index de546953c48..00000000000
--- a/tests/language_2/void/void_type_function_types_test.dart
+++ /dev/null
@@ -1,110 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test for type checks involving the void type in function types.
-
-import 'package:expect/expect.dart';
-
-typedef F = void Function(Object);
-typedef F2 = void Function([Object]);
-typedef F3 = void Function({Object x});
-
-typedef G = void Function(void);
-typedef G2 = void Function([void]);
-typedef G3 = void Function({void x});
-
-typedef H = int Function(void);
-typedef H2 = int Function([void]);
-typedef H3 = int Function({void x});
-
-void f(Object x) {}
-void f2([Object x]) {}
-void f3({Object x}) {}
-
-void g(void x) {}
-void g2([void x]) {}
-void g3({void x}) {}
-
-int h(void x) => 499;
-int h2([void x]) => 499;
-int h3({void x}) => 499;
-
-void expectsF(F f) {}
-void expectsG(G g) {}
-void expectsH(H h) {}
-
-void expectsF2(F2 f) {}
-void expectsG2(G2 g) {}
-void expectsH2(H2 h) {}
-
-void expectsF3(F3 f) {}
-void expectsG3(G3 g) {}
-void expectsH3(H3 h) {}
-
-main() {
-  Expect.isTrue(f is F);
-  Expect.isTrue(f is G);
-  Expect.isFalse(f is H);
-  expectsF(f);
-  expectsG(f);
-  expectsH(f); //# 00: compile-time error
-
-  Expect.isTrue(f2 is F2);
-  Expect.isTrue(f2 is G2);
-  Expect.isFalse(f2 is H2);
-  expectsF2(f2);
-  expectsG2(f2);
-  expectsH2(f2); //# 01: compile-time error
-
-  Expect.isTrue(f3 is F3);
-  Expect.isTrue(f3 is G3);
-  Expect.isFalse(f3 is H3);
-  expectsF3(f3);
-  expectsG3(f3);
-  expectsH3(f3); //# 03: compile-time error
-
-  Expect.isTrue(g is F);
-  Expect.isTrue(g is G);
-  Expect.isFalse(g is H);
-  expectsF(g);
-  expectsG(g);
-  expectsH(g); //# 05: compile-time error
-
-  Expect.isTrue(g2 is F2);
-  Expect.isTrue(g2 is G2);
-  Expect.isFalse(g2 is H2);
-  expectsF2(g2);
-  expectsG2(g2);
-  expectsH2(g2); //# 07: compile-time error
-
-  Expect.isTrue(g3 is F3);
-  Expect.isTrue(g3 is G3);
-  Expect.isFalse(g3 is H3);
-  expectsF3(g3);
-  expectsG3(g3);
-  expectsH3(g3); //# 09: compile-time error
-
-  Expect.isTrue(h is F);
-  Expect.isTrue(h is G);
-  Expect.isTrue(h is H);
-  expectsF(h);
-  expectsG(h);
-  expectsH(h);
-
-  Expect.isTrue(h2 is F2);
-  Expect.isTrue(h2 is G2);
-  Expect.isTrue(h2 is H2);
-  expectsF2(h2);
-  expectsG2(h2);
-  expectsH2(h2);
-
-  Expect.isTrue(h3 is F3);
-  Expect.isTrue(h3 is G3);
-  Expect.isTrue(h3 is H3);
-  expectsF3(h3);
-  expectsG3(h3);
-  expectsH3(h3);
-}
diff --git a/tests/language_2/void/void_type_override_test.dart b/tests/language_2/void/void_type_override_test.dart
deleted file mode 100644
index d2411132e9d..00000000000
--- a/tests/language_2/void/void_type_override_test.dart
+++ /dev/null
@@ -1,123 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test for type checks involving the void type and overriding.
-
-import 'package:expect/expect.dart';
-
-use<T>(T x) {}
-
-class A<T> {
-  T x;
-  Object y;
-  int z;
-
-  T foo() => null;
-  void bar() {}
-  void gee(T x) {}
-
-  f(A<Object> a) {}
-  g(A<void> a) {}
-  h(A<T> a) {}
-}
-
-class B implements A<Object> {
-  void   //# 00: ok
-  /*     //# 00: continued
-  var
-  */     //# 00: continued
-  x;
-
-  void   //# 00b: ok
-  /*     //# 00b: continued
-  var
-  */     //# 00b: continued
-  y;
-
-  void   //# 00c: compile-time error
-  /*     //# 00c: continued
-  int
-  */     //# 00c: continued
-  z;
-
-  void  //# 01: ok
-  foo() {}
-
-  int bar() => 499;
-  void gee(void x) {}
-  f(A<void> a) {}
-  g(A<void> a) {}
-  h(A<void> a) {}
-}
-
-class C implements A<void> {
-  void x;
-  Object y;
-  int z;
-
-  void foo() {}
-  void bar() {}
-  void gee(void x) {
-    use(x);
-  }
-
-  f(covariant C c) {}
-  g(covariant C c) {}
-  h(covariant C c) {}
-}
-
-class D implements A<void> {
-  Object x; // Setter will become a voidness preservation violation.
-  Object y;
-  int z;
-
-  Object foo() => null;
-  void bar() {}
-  void gee(
-      Object // Will become a voidness preservation violation.
-      x) {}
-
-  f(A<Object> a) {}
-  g(
-      A<Object> // Will become a voidness preservation violation.
-      a) {}
-  h(
-      A<Object> // Will become a voidness preservation violation.
-      a) {}
-}
-
-void instantiateClasses() {
-  var a = new A<void>();
-  var b = new B();
-  var c = new C();
-  var d = new D();
-
-  a.foo();
-  b.foo();
-  c.foo();
-  d.foo();
-  a.bar();
-  b.bar();
-  c.bar();
-  d.bar();
-  a.gee(499);
-  b.gee(499);
-  c.gee(499);
-  d.gee(499);
-}
-
-void testAssignments() {
-  A<void> a1 = new A<Object>();
-  A<Object> a2 = new A<void>();
-  A a3 = new A<void>();
-  A<dynamic> a4 = new A<void>();
-  dynamic a5 = new A<void>();
-}
-
-main() {
-  instantiateClasses();
-  testAssignments();
-}
diff --git a/tests/language_2/void/void_type_test.dart b/tests/language_2/void/void_type_test.dart
deleted file mode 100644
index 21c02f2d275..00000000000
--- a/tests/language_2/void/void_type_test.dart
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for type checks involving the void type.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-void f() {
-  return;
-}
-
-void f_null() {
-  return null;
-}
-
-void f_dyn_null() {
-  return null as dynamic;
-}
-
-void f_f() {
-  return f();
-}
-
-void test(int n, void func()) {
-  // Test as closure call.
-  {
-    bool got_type_error = false;
-    try {
-      func();
-    } on TypeError catch (error) {
-      got_type_error = true;
-    }
-    Expect.isFalse(got_type_error);
-  }
-  // Test as direct call.
-  {
-    bool got_type_error = false;
-    try {
-      var x;
-      switch (n) {
-        case 0:
-          x = f() as dynamic;
-          break;
-        case 1:
-          x = f_null() as dynamic;
-          break;
-        case 2:
-          x = f_dyn_null() as dynamic;
-          break;
-        case 3:
-          x = f_f() as dynamic;
-          break;
-      }
-    } on TypeError catch (error) {
-      got_type_error = true;
-    }
-    Expect.isFalse(got_type_error);
-  }
-}
-
-main() {
-  test(0, f);
-  test(1, f_null);
-  test(2, f_dyn_null);
-  test(3, f_f);
-}
diff --git a/tests/language_2/void/void_type_usage_test.dart b/tests/language_2/void/void_type_usage_test.dart
deleted file mode 100644
index bf7a9f1659d..00000000000
--- a/tests/language_2/void/void_type_usage_test.dart
+++ /dev/null
@@ -1,587 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test for type checks on usage of expressions of type void.
-
-void use(dynamic x) { }
-void useAsVoid(void x) { }
-
-Object testVoidParam(void x) {
-  x;  //# param_stmt: ok
-  true ? x : x;  //# param_conditional: ok
-  for (x; false; x) {}   //# param_for: ok
-  useAsVoid(x); //# param_argument_void: ok
-  use(x);   //# param_argument: compile-time error
-  use(x as Object);  //# param_as: ok
-  void y = x;   //# param_void_init: ok
-  dynamic z = x;  //# param_dynamic_init: compile-time error
-  x is Object;   //# param_is: compile-time error
-  throw x;   //# param_throw: compile-time error
-  <void>[x];   //# param_literal_void_list_init: ok
-  <Object>[x];   //# param_literal_list_init: compile-time error
-  var m1 = <int, void>{4: x};   //# param_literal_map_value_init: ok
-  var m2 = <void, int>{x : 4};   //# param_literal_map_key_init: ok
-  var m3 = <dynamic, dynamic>{4: x};  //# param_literal_map_value_init2: compile-time error
-  var m4 = <dynamic, dynamic>{x : 4};  //# param_literal_map_key_init2: compile-time error
-  x ?? 499;  //# param_null_equals1: compile-time error
-  null ?? x;  //# param_null_equals2: ok
-  return x;   //# param_return: compile-time error
-  while (x) {};  //# param_while: compile-time error
-  do {} while (x);  //# param_do_while: compile-time error
-  for (var v in x) {}   //# param_for_in: compile-time error
-  for (x in [1, 2]) {}  //# param_for_in2: ok
-  x += 1;  //# param_plus_eq: compile-time error
-  x.toString();  //# param_toString: compile-time error
-  x?.toString();  //# param_null_dot: compile-time error
-  x..toString();  //# param_cascade: compile-time error
-  if (x) {}; //# param_conditional_stmt: compile-time error
-  !x; //# param_boolean_negation: compile-time error
-  x && true; //# param_boolean_and_left: compile-time error
-  true && x; //# param_boolean_and_right: compile-time error
-  x || true; //# param_boolean_or_left: compile-time error
-  true || x; //# param_boolean_or_right: compile-time error
-  x == 3; //# param_equals_left: compile-time error
-  3 == x; //# param_equals_right: compile-time error
-  identical(3, x); //# param_identical: compile-time error
-  3 + x; //# param_addition: compile-time error
-  3 * x; //# param_multiplication: compile-time error
-  -x; //# param_negation: compile-time error
-  x(3); //# param_use_as_function: compile-time error
-  "hello$x"; //# param_use_in_string_interpolation: compile-time error
-  x ??= 3; //# param_use_in_conditional_assignment_left: compile-time error
-  Object xx;  xx ??= x; //# param_use_in_conditional_assignment_right: compile-time error
-  var ll = <int>[3]; ll[x]; //# param_use_in_list_subscript: compile-time error
-  var mm = <void, void>{}; mm[x]; //# param_use_in_map_lookup: compile-time error
-}
-
-testVoidAsync(void x) async {
-  await x; //# async_use_in_await: ok
-}
-
-testVoidAsyncStar(void x) async* {
-  yield x; //# async_use_in_yield: compile-time error
-  yield* x; //# async_use_in_yield_star: compile-time error
-  await for (var i in x) {} //# async_use_in_await_for: compile-time error
-}
-
-testVoidSyncStar(void x) sync* {
-  yield x; //# sync_use_in_yield: compile-time error
-  yield* x; //# sync_use_in_yield_star: compile-time error
-}
-
-const void c = null;
-
-dynamic testVoidDefaultParameter([int y = c]) {} //# void_default_parameter_global: compile-time error
-
-dynamic testVoidDefaultParameterClosure() {
-  ([int y = c]) => 3;//# void_default_parameter_closure: compile-time error
-}
-
-dynamic testVoidParamDynamic(void x) {
-  return x;   //# param_return_dynamic: ok
-}
-
-Object testVoidCall(void f()) {
-  f();  //# call_stmt: ok
-  true ? f() : f();  //# call_conditional: ok
-  for (f(); false; f()) {}   //# call_for: ok
-  useAsVoid(f()); //# call_argument_void: ok
-  use(f());   //# call_argument: compile-time error
-  use(f() as Object);  //# call_as: ok
-  void y = f();   //# call_void_init: ok
-  dynamic z = f();  //# call_dynamic_init: compile-time error
-  f() is Object;   //# call_is: compile-time error
-  throw f();   //# call_throw: compile-time error
-  <void>[f()];   //# call_literal_void_list_init: ok
-  <Object>[f()];   //# call_literal_list_init: compile-time error
-  var m1 = <int, void>{4: f() };   //# call_literal_map_value_init: ok
-  var m2 = <void, int>{ f(): 4};   //# call_literal_map_key_init: ok
-  var m3 = <dynamic, dynamic>{4: f() };  //# call_literal_map_value_init2: compile-time error
-  var m4 = <dynamic, dynamic>{ f(): 4};  //# call_literal_map_key_init2: compile-time error
-  f() ?? 499;  //# call_null_equals1: compile-time error
-  null ?? f();  //# call_null_equals2: ok
-  return f();   //# call_return: compile-time error
-  while (f()) {};  //# call_while: compile-time error
-  do {} while (f());  //# call_do_while: compile-time error
-  for (var v in f()) {}   //# call_for_in: compile-time error
-  f().toString();  //# call_toString: compile-time error
-  f()?.toString();  //# call_null_dot: compile-time error
-  f()..toString();  //# call_cascade: compile-time error
-  if (f()) {}; //# call_conditional_stmt: compile-time error
-  !f(); //# call_boolean_negation: compile-time error
-  f() && true; //# call_boolean_and_left: compile-time error
-  true && f(); //# call_boolean_and_right: compile-time error
-  f() || true; //# call_boolean_or_left: compile-time error
-  true || f(); //# call_boolean_or_right: compile-time error
-  f() == 3; //# call_equals_left: compile-time error
-  3 == f(); //# call_equals_right: compile-time error
-  identical(3, f()); //# call_identical: compile-time error
-  3 + f(); //# call_addition: compile-time error
-  3 * f(); //# call_multiplication: compile-time error
-  -f(); //# call_negation: compile-time error
-  f()(3); //# call_use_as_function: compile-time error
-  "hello${f()}"; //# call_use_in_string_interpolation: compile-time error
-  f() ??= 3; //# call_use_in_conditional_assignment_left: compile-time error
-  Object xx;  xx ??= f(); //# call_use_in_conditional_assignment_right: compile-time error
-  var ll = <int>[3]; ll[f()]; //# call_use_in_list_subscript: compile-time error
-  var mm = <void, void>{}; mm[f()]; //# call_use_in_map_lookup: compile-time error
-}
-
-dynamic testVoidCallDynamic(void f()) {
-  return f();   //# call_return: ok
-}
-
-Object testVoidLocal() {
-  void x;
-  x = 42;   //# local_assign: ok
-  x;  //# local_stmt: ok
-  true ? x : x;  //# local_conditional: ok
-  for (x; false; x) {}   //# local_for: ok
-  useAsVoid(x); //# local_argument_void: ok
-  use(x);   //# local_argument: compile-time error
-  use(x as Object);  //# local_as: ok
-  void y = x;   //# local_void_init: ok
-  dynamic z = x;  //# local_dynamic_init: compile-time error
-  x is Object;   //# local_is: compile-time error
-  throw x;   //# local_throw: compile-time error
-  <void>[x];   //# local_literal_void_list_init: ok
-  <Object>[x];   //# local_literal_list_init: compile-time error
-  var m1 = <int, void>{4: x};   //# local_literal_map_value_init: ok
-  var m2 = <void, int>{x : 4};   //# local_literal_map_key_init: ok
-  var m3 = <dynamic, dynamic>{4: x};  //# local_literal_map_value_init2: compile-time error
-  var m4 = <dynamic, dynamic>{x : 4};  //# local_literal_map_key_init2: compile-time error
-  x ?? 499;  //# local_null_equals1: compile-time error
-  null ?? x;  //# local_null_equals2: ok
-  return x;   //# local_return: compile-time error
-  while (x) {};  //# local_while: compile-time error
-  do {} while (x);  //# local_do_while: compile-time error
-  for (var v in x) {}   //# local_for_in: compile-time error
-  for (x in [1, 2]) {}  //# local_for_in2: ok
-  x += 1;  //# local_plus_eq: compile-time error
-  x.toString();  //# local_toString: compile-time error
-  x?.toString();  //# local_null_dot: compile-time error
-  x..toString();  //# local_cascade: compile-time error
-   if (x) {}; //# local_conditional_stmt: compile-time error
-  !x; //# local_boolean_negation: compile-time error
-  x && true; //# local_boolean_and_left: compile-time error
-  true && x; //# local_boolean_and_right: compile-time error
-  x || true; //# local_boolean_or_left: compile-time error
-  true || x; //# local_boolean_or_right: compile-time error
-  x == 3; //# local_equals_left: compile-time error
-  3 == x; //# local_equals_right: compile-time error
-  identical(3, x); //# local_identical: compile-time error
-  3 + x; //# local_addition: compile-time error
-  3 * x; //# local_multiplication: compile-time error
-  -x; //# local_negation: compile-time error
-  x(3); //# local_use_as_function: compile-time error
-  "hello$x"; //# local_use_in_string_interpolation: compile-time error
-  x ??= 3; //# local_use_in_conditional_assignment_left: compile-time error
-  Object xx;  xx ??= x; //# local_use_in_conditional_assignment_right: compile-time error
-  var ll = <int>[3]; ll[x]; //# local_use_in_list_subscript: compile-time error
-  var mm = <void, void>{}; mm[x]; //# local_use_in_map_lookup: compile-time error
-}
-
-dynamic testVoidLocalDynamic() {
-  void x;
-  return x;   //# local_return_dynamic: ok
-}
-
-Object testVoidFinalLocal() {
-  final void x = null;
-  x = 42;   //# final_local_assign: compile-time error
-  x;  //# final_local_stmt: ok
-  true ? x : x;  //# final_local_conditional: ok
-  for (x; false; x) {}   //# final_local_for: ok
-  useAsVoid(x); //# final_local_argument_void: ok
-  use(x);   //# final_local_argument: compile-time error
-  use(x as Object);  //# final_local_as: ok
-  void y = x;   //# final_local_void_init: ok
-  dynamic z = x;  //# final_local_dynamic_init: compile-time error
-  x is Object;   //# final_local_is: compile-time error
-  throw x;   //# final_local_throw: compile-time error
-  <void>[x];   //# final_local_literal_void_list_init: ok
-  <Object>[x];   //# final_local_literal_list_init: compile-time error
-  var m1 = <int, void>{4: x};   //# final_local_literal_map_value_init: ok
-  var m2 = <void, int>{x : 4};   //# final_local_literal_map_key_init: ok
-  var m3 = <dynamic, dynamic>{4: x};  //# final_local_literal_map_value_init2: compile-time error
-  var m4 = <dynamic, dynamic>{x : 4};  //# final_local_literal_map_key_init2: compile-time error
-  x ?? 499;  //# final_local_null_equals1: compile-time error
-  null ?? x;  //# final_local_null_equals2: ok
-  return x;   //# final_local_return: compile-time error
-  while (x) {};  //# final_local_while: compile-time error
-  do {} while (x);  //# final_local_do_while: compile-time error
-  for (var v in x) {}   //# final_local_for_in: compile-time error
-  for (x in [1, 2]) {}  //# final_local_for_in2: compile-time error
-  x += 1;  //# final_local_plus_eq: compile-time error
-  x.toString();  //# final_local_toString: compile-time error
-  x?.toString();  //# final_local_null_dot: compile-time error
-  x..toString();  //# final_local_cascade: compile-time error
-   if (x) {}; //# final_local_conditional_stmt: compile-time error
-  !x; //# final_local_boolean_negation: compile-time error
-  x && true; //# final_local_boolean_and_left: compile-time error
-  true && x; //# final_local_boolean_and_right: compile-time error
-  x || true; //# final_local_boolean_or_left: compile-time error
-  true || x; //# final_local_boolean_or_right: compile-time error
-  x == 3; //# final_local_equals_left: compile-time error
-  3 == x; //# final_local_equals_right: compile-time error
-  identical(3, x); //# final_local_identical: compile-time error
-  3 + x; //# final_local_addition: compile-time error
-  3 * x; //# final_local_multiplication: compile-time error
-  -x; //# final_local_negation: compile-time error
-  x(3); //# final_local_use_as_function: compile-time error
-  "hello$x"; //# final_local_use_in_string_interpolation: compile-time error
-  x ??= 3; //# final_local_use_in_conditional_assignment_left: compile-time error
-  Object xx;  xx ??= x; //# final_local_use_in_conditional_assignment_right: compile-time error
-  var ll = <int>[3]; ll[x]; //# final_local_use_in_list_subscript: compile-time error
-  var mm = <void, void>{}; mm[x]; //# final_local_use_in_map_lookup: compile-time error
-}
-
-dynamic testVoidFinalLocalDynamic() {
-  final void x = null;
-  return x;   //# final_local_return_dynamic: ok
-}
-
-void global;
-Object testVoidGlobal() {
-  global;  //# global_stmt: ok
-  true ? global : global;  //# global_conditional: ok
-  for (global; false; global) {}   //# global_for: ok
-  useAsVoid(global); //# global_argument_void: ok
-  use(global);   //# global_argument: compile-time error
-  use(global as Object);  //# global_as: ok
-  void y = global;   //# global_void_init: ok
-  dynamic z = global;  //# global_dynamic_init: compile-time error
-  global is Object;   //# global_is: compile-time error
-  throw global;   //# global_throw: compile-time error
-  <void>[global];   //# global_literal_void_list_init: ok
-  <Object>[global];   //# global_literal_list_init: compile-time error
-  var m1 = <int, void>{4: global };   //# global_literal_map_value_init: ok
-  var m2 = <void, int>{ global: 4};   //# global_literal_map_key_init: ok
-  var m3 = <dynamic, dynamic>{4: global };  //# global_literal_map_value_init2: compile-time error
-  var m4 = <dynamic, dynamic>{ global: 4};  //# global_literal_map_key_init2: compile-time error
-  null ?? global;  //# global_null_equals1: ok
-  global ?? 499;  //# global_null_equals2: compile-time error
-  return global;   //# global_return: compile-time error
-  while (global) {};  //# global_while: compile-time error
-  do {} while (global);  //# global_do_while: compile-time error
-  for (var v in global) {}   //# global_for_in: compile-time error
-  for (global in [1, 2]) {}  //# global_for_in2: ok
-  global += 1;  //# global_plus_eq: compile-time error
-  global.toString();  //# global_toString: compile-time error
-  global?.toString();  //# global_null_dot: compile-time error
-  global..toString();  //# global_cascade: compile-time error
-  if (global) {}; //# global_conditional_stmt: compile-time error
-  !global; //# global_boolean_negation: compile-time error
-  global && true; //# global_boolean_and_left: compile-time error
-  true && global; //# global_boolean_and_right: compile-time error
-  global || true; //# global_boolean_or_left: compile-time error
-  true || global; //# global_boolean_or_right: compile-time error
-  global == 3; //# global_equals_left: compile-time error
-  3 == global; //# global_equals_right: compile-time error
-  identical(3, global); //# global_identical: compile-time error
-  3 + global; //# global_addition: compile-time error
-  3 * global; //# global_multiplication: compile-time error
-  -global; //# global_negation: compile-time error
-  global(3); //# global_use_as_function: compile-time error
-  "hello$global"; //# global_use_in_string_interpolation: compile-time error
-  global ??= 3; //# global_use_in_conditional_assignment_left: compile-time error
-  Object xx;  xx ??= global; //# global_use_in_conditional_assignment_right: compile-time error
-  var ll = <int>[3]; ll[global]; //# global_use_in_list_subscript: compile-time error
-  var mm = <void, void>{}; mm[global]; //# global_use_in_map_lookup: compile-time error
-}
-
-dynamic testVoidGlobalDynamic() {
-  return global;   //# global_return_dynamic: ok
-}
-
-Object testVoidConditional() {
-  void x;
-  (true ? x : x);   //# conditional_parens: ok
-  true ? x : x;  //# conditional_stmt: ok
-  true ? true ? x : x : true ? x : x;  //# conditional_conditional: ok
-  for (true ? x : x; false; true ? x : x) {}   //# conditional_for: ok
-  useAsVoid(true ? x : x); //# conditional_argument_void: ok
-  use(true ? x : x);   //# conditional_argument: compile-time error
-  void y = true ? x : x;   //# conditional_void_init: ok
-  dynamic z = true ? x : x;  //# conditional_dynamic_init: compile-time error
-  throw true ? x : x;   //# conditional_throw: compile-time error
-  <void>[true ? x : x];   //# conditional_literal_void_list_init: ok
-  <Object>[true ? x : x];   //# conditional_literal_list_init: compile-time error
-  var m1 = <int, void>{4: true ? x : x};   //# conditional_literal_map_value_init: ok
-  var m3 = <dynamic, dynamic>{4: true ? x : x};  //# conditional_literal_map_value_init2: compile-time error
-  (true ? x : x) ?? null;  //# conditional_null_equals1: compile-time error
-  null ?? (true ? x : x);  //# conditional_null_equals2: ok
-  return true ? x : x;   //# conditional_return: compile-time error
-  while (true ? x : x) {};  //# conditional_while: compile-time error
-  do {} while (true ? x : x);  //# conditional_do_while: compile-time error
-  for (var v in true ? x : x) {}   //# conditional_for_in: compile-time error
-
-  (true ? 499 : x);   //# conditional2_parens: ok
-  true ? 499 : x;  //# conditional2_stmt: ok
-  true ? true ? 499 : x : true ? 499 : x;  //# conditional2_conditional: ok
-  for (true ? 499 : x; false; true ? 499 : x) {}   //# conditional2_for: ok
-  useAsVoid(true ? 499 : x); //# conditional2_argument_void: ok
-  use(true ? 499 : x);   //# conditional2_argument: compile-time error
-  void y2 = true ? 499 : x;   //# conditional2_void_init: ok
-  dynamic z2 = true ? 499 : x;  //# conditional2_dynamic_init: compile-time error
-  throw true ? 499 : x;   //# conditional2_throw: compile-time error
-  <void>[true ? 499 : x];   //# conditional2_literal_void_list_init: ok
-  <Object>[true ? 499 : x];   //# conditional2_literal_list_init: compile-time error
-  var m12 = <int, void>{4: true ? 499 : x};   //# conditional2_literal_map_value_init: ok
-  var m32 = <dynamic, dynamic>{4: true ? 499 : x};  //# conditional2_literal_map_value_init2: compile-time error
-  (true ? 499 : x) ?? null;  //# conditional2_null_equals1: compile-time error
-  null ?? (true ? 499 : x);  //# conditional2_null_equals2: ok
-  return true ? 499 : x;   //# conditional2_return: compile-time error
-  while (true ? 499 : x) {};  //# conditional2while: compile-time error
-  do {} while (true ? 499 : x);  //# conditional2do_while: compile-time error
-  for (var v in true ? 499 : x) {}   //# conditional2for_in: compile-time error
-
-  (true ? x : 499);   //# conditional3_parens: ok
-  true ? x : 499;  //# conditional3_stmt: ok
-  true ? true ? x : 499 : true ? x : 499;  //# conditional3_conditional: ok
-  for (true ? x : 499; false; true ? x : 499) {}   //# conditional3_for: ok
-  useAsVoid(true ? x : 499); //# conditional3_argument_void: ok
-  use(true ? x : 499);   //# conditional3_argument: compile-time error
-  void y3 = true ? x : 499;   //# conditional3_void_init: ok
-  dynamic z3 = true ? x : 499;  //# conditional3_dynamic_init: compile-time error
-  throw true ? x : 499;   //# conditional3_throw: compile-time error
-  <void>[true ? x : 499];   //# conditional3_literal_void_list_init: ok
-  <Object>[true ? x : 499];   //# conditional3_literal_list_init: compile-time error
-  var m13 = <int, void>{4: true ? x : 499 };   //# conditional3_literal_map_value_init: ok
-  var m33 = <dynamic, dynamic>{4: true ? x : 499 };  //# conditional3_literal_map_value_init2: compile-time error
-  (true ? x : 499) ?? null;  //# conditional3_null_equals1: compile-time error
-  null ?? (true ? x : 499);  //# conditional3_null_equals2: ok
-  return true ? x : 499;   //# conditional3_return: compile-time error
-  while (true ? x : 499) {};  //# conditional_while: compile-time error
-  do {} while (true ? x : 499);  //# conditional_do_while: compile-time error
-  for (var v in true ? x : 499) {}   //# conditional_for_in: compile-time error
-}
-
-dynamic testVoidConditionalDynamic() {
-  void x;
-  return true ? x : x;   //# conditional_return_dynamic: ok
-  return true ? 499 : x;   //# conditional2_return_dynamic: ok
-  return true ? x : 499;   //# conditional3_return_dynamic: ok
-}
-
-class A<T> {
-  T x;
-
-  void foo() {}
-}
-
-class B implements A<void> {
-  void x;
-
-  int foo() => 499;
-
-  void forInTest() {
-    for (x in <void>[]) {}  //# instance2_for_in2: ok
-    for (x in [1, 2]) {}  //# instance2_for_in3: ok
-  }
-}
-
-class C implements A<void> {
-  void get x => null;
-  set x(void y) {}
-
-  void foo() {}
-
-  void forInTest() {
-    for (x in <void>[]) {}  //# instance3_for_in2: ok
-    for (x in [1, 2]) {}  //# instance3_for_in3: ok
-  }
-}
-
-Object testInstanceField() {
-  A<void> a = new A<void>();
-  a.x = 499;  //# field_assign: ok
-  a.x;  //# instance_stmt: ok
-  true ? a.x : a.x;  //# instance_conditional: ok
-  for (a.x; false; a.x) {}   //# instance_for: ok
-  useAsVoid(a.x); //# instance_argument_void: ok
-  use(a.x);   //# instance_argument: compile-time error
-  use(a.x as Object);  //# instance_as: ok
-  void y = a.x;   //# instance_void_init: ok
-  dynamic z = a.x;  //# instance_dynamic_init: compile-time error
-  a.x is Object;   //# instance_is: compile-time error
-  throw a.x;   //# instance_throw: compile-time error
-  <void>[a.x];   //# instance_literal_void_list_init: ok
-  <Object>[a.x];   //# instance_literal_list_init: compile-time error
-  var m1 = <int, void>{4: a.x};   //# instance_literal_map_value_init: ok
-  var m2 = <void, int>{ a.x : 4};   //# instance_literal_map_key_init: ok
-  var m3 = <dynamic, dynamic>{4: a.x};  //# instance_literal_map_value_init2: compile-time error
-  var m4 = <dynamic, dynamic>{ a.x : 4};  //# instance_literal_map_key_init2: compile-time error
-  null ?? a.x;  //# instance_null_equals1: ok
-  a.x ?? 499;  //# instance_null_equals2: compile-time error
-  return a.x;   //# instance_return: compile-time error
-  while (a.x) {};  //# instance_while: compile-time error
-  do {} while (a.x);  //# instance_do_while: compile-time error
-  for (var v in a.x) {}   //# instance_for_in: compile-time error
-  a.x += 1;  //# instance_plus_eq: compile-time error
-  a.x.toString();  //# instance_toString: compile-time error
-  a.x?.toString();  //# instance_null_dot: compile-time error
-  a.x..toString();  //# instance_cascade: compile-time error
-
-  B b = new B();
-  b.x = 42;   //# field_assign2: ok
-  b.x;  //# instance2_stmt: ok
-  true ? b.x : b.x;  //# instance2_conditional: ok
-  for (b.x; false; b.x) {}   //# instance2_for: ok
-  useAsVoid(b.x); //# instance2_argument_void: ok
-  use(b.x);   //# instance2_argument: compile-time error
-  use(b.x as Object);  //# instance2_as: ok
-  void y2 = b.x;   //# instance2_void_init: ok
-  dynamic z2 = b.x;  //# instance2_dynamic_init: compile-time error
-  b.x is Object;   //# instance2_is: compile-time error
-  throw b.x;   //# instance2_throw: compile-time error
-  <void>[b.x];   //# instance2_literal_void_list_init: ok
-  <Object>[b.x];   //# instance2_literal_list_init: compile-time error
-  var m12 = <int, void>{4: b.x};   //# instance2_literal_map_value_init: ok
-  var m22 = <void, int>{ b.x : 4};   //# instance2_literal_map_key_init: ok
-  var m32 = <dynamic, dynamic>{4: b.x};  //# instance2_literal_map_value_init2: compile-time error
-  var m42 = <dynamic, dynamic>{ b.x : 4};  //# instance2_literal_map_key_init2: compile-time error
-  null ?? b.x;  //# instance2_null_equals1: ok
-  b.x ?? 499;  //# instance2_null_equals2: compile-time error
-  return b.x;   //# instance2_return: compile-time error
-  while (b.x) {};  //# instance2_while: compile-time error
-  do {} while (b.x);  //# instance2_do_while: compile-time error
-  for (var v in b.x) {}   //# instance2_for_in: compile-time error
-  b.forInTest();
-  b.x += 1;  //# instance2_plus_eq: compile-time error
-  b.x.toString();  //# instance2_toString: compile-time error
-  b.x?.toString();  //# instance2_null_dot: compile-time error
-  b.x..toString();  //# instance2_cascade: compile-time error
-
-  C c = new C();
-  c.x = 32;   //# setter_assign: ok
-  c.x;  //# instance3_stmt: ok
-  true ? c.x : c.x;  //# instance3_conditional: ok
-  for (c.x; false; c.x) {}   //# instance3_for: ok
-  useAsVoid(c.x); //# instance3_argument_void: ok
-  use(c.x);   //# instance3_argument: compile-time error
-  use(c.x as Object);  //# instance3_as: ok
-  void y3 = c.x;   //# instance3_void_init: ok
-  dynamic z3 = c.x;  //# instance3_dynamic_init: compile-time error
-  c.x is Object;   //# instance3_is: compile-time error
-  throw c.x;   //# instance3_throw: compile-time error
-  <void>[c.x];   //# instance3_literal_void_list_init: ok
-  <Object>[c.x];   //# instance3_literal_list_init: compile-time error
-  var m13 = <int, void>{4: c.x};   //# instance3_literal_map_value_init: ok
-  var m23 = <void, int>{ c.x : 4};   //# instance3_literal_map_key_init: ok
-  var m33 = <dynamic, dynamic>{4: c.x};  //# instance3_literal_map_value_init2: compile-time error
-  var m43 = <dynamic, dynamic>{ c.x : 4};  //# instance3_literal_map_key_init2: compile-time error
-  null ?? c.x;  //# instance3_null_equals1: ok
-  c.x ?? 499;  //# instance3_null_equals2: compile-time error
-  return c.x;   //# instance3_return: compile-time error
-  while (c.x) {};  //# instance3_while: compile-time error
-  do {} while (c.x);  //# instance3_do_while: compile-time error
-  for (var v in c.x) {}   //# instance3_for_in: compile-time error
-  c.forInTest();
-  c.x += 1;  //# instance3_plus_eq: compile-time error
-  c.x.toString();  //# instance3_toString: compile-time error
-  c.x?.toString();  //# instance3_null_dot: compile-time error
-  c.x..toString();  //# instance3_cascade: compile-time error
-}
-
-dynamic testInstanceFieldDynamic() {
-  A<void> a = new A<void>();
-  return a.x;   //# instance_return_dynamic: ok
-
-  B b = new B();
-  return b.x;   //# instance2_return_dynamic: ok
-
-  C c = new C();
-  return c.x;   //# instance3_return_dynamic: ok
-}
-
-Object testParenthesized() {
-  void x;
-  (x);  //# paren_stmt: ok
-  true ? (x) : (x);  //# paren_conditional: ok
-  for ((x); false; (x)) {}   //# paren_for: ok
-  useAsVoid((x)); //# paren_argument_void: ok
-  use((x));   //# paren_argument: compile-time error
-  use((x) as Object);  //# paren_as: ok
-  void y = (x);   //# paren_void_init: ok
-  dynamic z = (x);  //# paren_dynamic_init: compile-time error
-  (x) is Object;   //# paren_is: compile-time error
-  throw (x);   //# paren_throw: compile-time error
-  <void>[(x)];   //# paren_literal_void_list_init: ok
-  <Object>[(x)];   //# paren_literal_list_init: compile-time error
-  var m1 = <int, void>{4: (x) };   //# paren_literal_map_value_init: ok
-  var m2 = <void, int>{ (x): 4};   //# paren_literal_map_key_init: ok
-  var m3 = <dynamic, dynamic>{4: (x) };  //# paren_literal_map_value_init2: compile-time error
-  var m4 = <dynamic, dynamic>{ (x): 4};  //# paren_literal_map_key_init2: compile-time error
-  (x) ?? 499;  //# paren_null_equals1: compile-time error
-  null ?? (x);  //# paren_null_equals2: ok
-  return (x);   //# paren_return: compile-time error
-  while ((x)) {};  //# paren_while: compile-time error
-  do {} while ((x));  //# paren_do_while: compile-time error
-  for (var v in (x)) {}   //# paren_for_in: compile-time error
-  (x).toString();  //# paren_toString: compile-time error
-  (x)?.toString();  //# paren_null_dot: compile-time error
-  (x)..toString();  //# paren_cascade: compile-time error
-   if ((x)) {}; //# paren_conditional_stmt: compile-time error
-  !(x); //# paren_boolean_negation: compile-time error
-  (x) && true; //# paren_boolean_and_left: compile-time error
-  true && (x); //# paren_boolean_and_right: compile-time error
-  (x) || true; //# paren_boolean_or_left: compile-time error
-  true || (x); //# paren_boolean_or_right: compile-time error
-  (x) == 3; //# paren_equals_left: compile-time error
-  3 == (x); //# paren_equals_right: compile-time error
-  identical(3, (x)); //# paren_identical: compile-time error
-  3 + (x); //# paren_addition: compile-time error
-  3 * (x); //# paren_multiplication: compile-time error
-  -(x); //# paren_negation: compile-time error
-  (x)(3); //# paren_use_as_function: compile-time error
-  "hello${(x)}"; //# paren_use_in_string_interpolation: compile-time error
-  (x) ??= 3; //# paren_use_in_conditional_assignment_left: compile-time error
-  Object xx;  xx ??= (x); //# paren_use_in_conditional_assignment_right: compile-time error
-  var ll = <int>[3]; ll[(x)]; //# paren_use_in_list_subscript: compile-time error
-  var mm = <void, void>{}; mm[(x)]; //# paren_use_in_map_lookup: compile-time error
-}
-
-dynamic testParenthesizedDynamic() {
-  void x;
-  return (x);   //# paren_return_dynamic: ok
-}
-
-void testReturnToVoid(void x, void f()) {
-  void y;
-  final void z = null;
-  A<void> a = new A<void>();
-  B b = new B();
-  C c = new C();
-  return x;   //# param_return_to_void: ok
-  return f();   //# call_return_to_void: ok
-  return y;   //# local_return_to_void: ok
-  return z;   //# final_local_return_to_void: ok
-  return global;   //# global_return_to_void: ok
-  return true ? x : x;   //# conditional_return_to_void: ok
-  return true ? 499 : x;   //# conditional2_return_to_void: ok
-  return true ? x : 499;   //# conditional3_return_to_void: ok
-  return a.x;   //# instance_return_to_void: ok
-  return b.x;   //# instance2_return_to_void: ok
-  return c.x;   //# instance3_return_to_void: ok
-  return (x);   //# paren_return_to_void: ok
-}
-
-main() {
-  try {
-    testVoidParam(499);
-    testVoidCall(() {});
-    testVoidLocal();
-    testVoidFinalLocal();
-    testVoidConditional();
-    testInstanceField();
-    testParenthesized();
-    testReturnToVoid(499, () {});
-  } catch (e) {
-    // Silently eat all dynamic errors.
-    // This test is only testing static analysis.
-  }
-}
diff --git a/tests/lib_2/analyzer/analyze_library.status b/tests/lib_2/analyzer/analyze_library.status
deleted file mode 100644
index 0dd8e28ddcf..00000000000
--- a/tests/lib_2/analyzer/analyze_library.status
+++ /dev/null
@@ -1,6 +0,0 @@
-# Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-
-[ $compiler == dart2analyzer ]
-*: Skip
diff --git a/tests/lib_2/async/async_await_sync_completer_test.dart b/tests/lib_2/async/async_await_sync_completer_test.dart
deleted file mode 100644
index 3797a927497..00000000000
--- a/tests/lib_2/async/async_await_sync_completer_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-import 'dart:async';
-
-var events = [];
-var delayedValue = new Completer();
-var delayedError = new Completer();
-
-foo() async {
-  // Because of this `await null` the function returns and lets the caller
-  // install handlers. When the function finishes, it can then synchronously
-  // propagate the values.
-  await null;
-  new Future.microtask(() => 'in microtask')
-      .then(events.add)
-      .then(delayedValue.complete);
-  return 'in async function';
-}
-
-bar() async {
-  // Because of this `await null` the function returns and lets the caller
-  // install handlers. When the function finishes, it can then synchronously
-  // propagate the values.
-  await null;
-  new Future.microtask(() => throw 'in microtask error')
-      .catchError(events.add)
-      .then(delayedError.complete);
-  throw 'in async function error';
-}
-
-void main() {
-  asyncStart();
-  var asyncValueFuture = foo().then(events.add);
-  var asyncErrorFuture = bar().catchError(events.add);
-  Future.wait(<Future>[
-    asyncValueFuture,
-    delayedValue.future,
-    asyncErrorFuture,
-    delayedError.future
-  ]).then((_) {
-    // The body completed before nested microtask. So they should appear
-    // before the delayed functions. In other words, the async function should
-    // not unnecessarily delay the propagation of errors and values.
-    Expect.listEquals([
-      "in async function",
-      "in async function error",
-      "in microtask",
-      "in microtask error"
-    ], events);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/async_await_zones_test.dart b/tests/lib_2/async/async_await_zones_test.dart
deleted file mode 100644
index d2fcb95b387..00000000000
--- a/tests/lib_2/async/async_await_zones_test.dart
+++ /dev/null
@@ -1,147 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that async functions don't zone-register their callbacks for each
-// await. Async functions should register their callback once in the beginning
-// and then reuse it for all awaits in their body.
-// This has two advantages: it is faster, when there are several awaits (on
-// the Future class from dart:async), and it avoids zone-nesting when tracing
-// stacktraces.
-// See http://dartbug.com/23394 for more information.
-
-import 'dart:async';
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-gee(i) async {
-  return await i;
-}
-
-bar() async* {
-  var i = 0;
-  while (true) yield await gee(i++);
-}
-
-awaitForTest() async {
-  var sum = 0;
-  await for (var x in bar().take(100)) {
-    sum += x;
-  }
-  Expect.equals(4950, sum);
-}
-
-awaitTest() async {
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  await null;
-  return await 499;
-}
-
-runTests() async {
-  await awaitTest();
-  await awaitForTest();
-}
-
-var depth = 0;
-
-var depthIncreases = 0;
-
-increaseDepth() {
-  depthIncreases++;
-  depth++;
-  // The async/await code should not register callbacks recursively in the
-  // then-calls. As such the depth should never grow too much. We don't want
-  // to commit to a specific value, since implementations still have some
-  // room in how async/await is implemented, but 20 should be safe.
-  Expect.isTrue(depth < 20);
-}
-
-ZoneCallback<R> registerCallback<R>(
-    Zone self, ZoneDelegate parent, Zone zone, R f()) {
-  var oldDepth = depth;
-  increaseDepth();
-  return parent.registerCallback(zone, () {
-    depth = oldDepth;
-    return f();
-  });
-}
-
-ZoneUnaryCallback<R, T> registerUnaryCallback<R, T>(
-    Zone self, ZoneDelegate parent, Zone zone, R f(T arg)) {
-  var oldDepth = depth;
-  increaseDepth();
-  return parent.registerUnaryCallback(zone, (x) {
-    depth = oldDepth;
-    return f(x);
-  });
-}
-
-ZoneBinaryCallback<R, T1, T2> registerBinaryCallback<R, T1, T2>(
-    Zone self, ZoneDelegate parent, Zone zone, R f(T1 arg1, T2 arg2)) {
-  var oldDepth = depth;
-  increaseDepth();
-  return parent.registerBinaryCallback(zone, (x, y) {
-    depth = oldDepth;
-    return f(x, y);
-  });
-}
-
-void sm(Zone self, ZoneDelegate parent, Zone zone, f) {
-  var oldDepth = depth;
-  increaseDepth();
-  return parent.scheduleMicrotask(zone, () {
-    depth = oldDepth;
-    return f();
-  });
-}
-
-main() {
-  asyncStart();
-  var desc = new ZoneSpecification(
-      registerCallback: registerCallback,
-      registerUnaryCallback: registerUnaryCallback,
-      registerBinaryCallback: registerBinaryCallback,
-      scheduleMicrotask: sm);
-  var future = runZoned(runTests, zoneSpecification: desc);
-  future.then((_) => asyncEnd());
-}
diff --git a/tests/lib_2/async/async_no_await_zones_test.dart b/tests/lib_2/async/async_no_await_zones_test.dart
deleted file mode 100644
index ab5e74f4a16..00000000000
--- a/tests/lib_2/async/async_no_await_zones_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for https://github.com/dart-lang/sdk/issues/33330
-import 'dart:async';
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-var log = [];
-
-main() {
-  asyncStart();
-  runZoned(() {
-    dynamic d = new AsyncDoEvent();
-    return d.doEvent();
-  }, zoneSpecification: new ZoneSpecification(
-    scheduleMicrotask: (self, parent, zone, fn) {
-      log.add('scheduleMicrotask()');
-      return parent.scheduleMicrotask(zone, fn);
-    },
-  )).then((_) {
-    Expect.listEquals(log, ['doEvent()', 'scheduleMicrotask()']);
-    asyncEnd();
-  });
-}
-
-class AsyncDoEvent {
-  Future doEvent() async {
-    log.add('doEvent()');
-  }
-}
diff --git a/tests/lib_2/async/catch_errors.dart b/tests/lib_2/async/catch_errors.dart
deleted file mode 100644
index d73bff04412..00000000000
--- a/tests/lib_2/async/catch_errors.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-
-// @dart = 2.9
-library catch_errors;
-
-import 'dart:async';
-
-Stream catchErrors(dynamic body()) {
-  StreamController controller;
-
-  bool onError(e, st) {
-    controller.add(e);
-    return true;
-  }
-
-  void onListen() {
-    runZoned(body, onError: onError);
-  }
-
-  controller = new StreamController(onListen: onListen);
-  return controller.stream;
-}
-
-runZonedScheduleMicrotask(body(),
-    {void onScheduleMicrotask(void callback()), Function onError}) {
-  if (onScheduleMicrotask == null) {
-    return runZoned(body, onError: onError);
-  }
-  HandleUncaughtErrorHandler errorHandler;
-  if (onError != null) {
-    errorHandler = (Zone self, ZoneDelegate parent, Zone zone, error,
-        StackTrace stackTrace) {
-      try {
-        return self.parent.runUnary(onError, error);
-      } catch (e, s) {
-        if (identical(e, error)) {
-          return parent.handleUncaughtError(zone, error, stackTrace);
-        } else {
-          return parent.handleUncaughtError(zone, e, s);
-        }
-      }
-    };
-  }
-  ScheduleMicrotaskHandler asyncHandler;
-  if (onScheduleMicrotask != null) {
-    asyncHandler = (Zone self, ZoneDelegate parent, Zone zone, f()) {
-      self.parent.runUnary(onScheduleMicrotask, () => zone.runGuarded(f));
-    };
-  }
-  ZoneSpecification specification = new ZoneSpecification(
-      handleUncaughtError: errorHandler, scheduleMicrotask: asyncHandler);
-  Zone zone = Zone.current.fork(specification: specification);
-  if (onError != null) {
-    return zone.runGuarded(body);
-  } else {
-    return zone.run(body);
-  }
-}
diff --git a/tests/lib_2/async/catch_errors11_test.dart b/tests/lib_2/async/catch_errors11_test.dart
deleted file mode 100644
index 5fb2e903723..00000000000
--- a/tests/lib_2/async/catch_errors11_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  Completer done = new Completer();
-
-  var events = [];
-  // Test that `catchErrors` catches errors that are delayed by `Timer.run`.
-  catchErrors(() {
-    events.add("catch error entry");
-    new Future.error("future error");
-    Timer.run(() {
-      done.complete(true);
-      throw "timer error";
-    });
-  }).listen((x) {
-    events.add(x);
-  }, onDone: () {
-    Expect.fail("Unexpected callback");
-  });
-
-  done.future.whenComplete(() {
-    // Give the handler time to execute.
-    Timer.run(() {
-      Expect.listEquals([
-        "catch error entry",
-        "main exit",
-        "future error",
-        "timer error",
-      ], events);
-      asyncEnd();
-    });
-  });
-  events.add("main exit");
-}
diff --git a/tests/lib_2/async/catch_errors12_test.dart b/tests/lib_2/async/catch_errors12_test.dart
deleted file mode 100644
index 2a5b4d1cf16..00000000000
--- a/tests/lib_2/async/catch_errors12_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  Completer done = new Completer();
-
-  var events = [];
-  // Tests that errors that have been delayed by several milliseconds with
-  // Timers are still caught by `catchErrors`.
-  catchErrors(() {
-    events.add("catch error entry");
-    Timer.run(() {
-      throw "timer error";
-    });
-    new Timer(const Duration(milliseconds: 100), () {
-      throw "timer2 error";
-    });
-    new Future.value(499).then((x) {
-      new Timer(const Duration(milliseconds: 200), () {
-        done.complete(499);
-        throw x;
-      });
-    });
-    throw "catch error";
-  }).listen((x) {
-    events.add(x);
-  }, onDone: () {
-    Expect.fail("Unexpected callback");
-  });
-  done.future.whenComplete(() {
-    // Give time to execute the callbacks.
-    Timer.run(() {
-      Expect.listEquals([
-        "catch error entry",
-        "main exit",
-        "catch error",
-        "timer error",
-        "timer2 error",
-        499,
-      ], events);
-      asyncEnd();
-    });
-  });
-  events.add("main exit");
-}
diff --git a/tests/lib_2/async/catch_errors13_test.dart b/tests/lib_2/async/catch_errors13_test.dart
deleted file mode 100644
index 33adbbd7180..00000000000
--- a/tests/lib_2/async/catch_errors13_test.dart
+++ /dev/null
@@ -1,95 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  Completer done = new Completer();
-
-  var events = [];
-  // Work around bug that makes scheduleMicrotask use Timers. By invoking
-  // `scheduleMicrotask` here we make sure that asynchronous non-timer events
-  // are executed before any Timer events.
-  scheduleMicrotask(() {});
-
-  // Test that errors are caught by nested `catchErrors`. Also uses
-  // `scheduleMicrotask` in the body of a Timer.
-  bool outerTimerRan = false;
-  int outerTimerCounterDelayCount = 0;
-  catchErrors(() {
-    events.add("catch error entry");
-    catchErrors(() {
-      events.add("catch error entry2");
-      Timer.run(() {
-        throw "timer error";
-      });
-
-      // We want this timer to run after the timer below. When the machine is
-      // slow we saw that the timer below was scheduled more than 50ms after
-      // this line. A duration of 50ms was therefore not enough to guarantee
-      // that this timer runs before the timer below.
-      // Instead of increasing the duration to a bigger amount we decided to
-      // verify that the other timer already ran, and reschedule if not.
-      // This way we could reduce the timeout (to 10ms now), while still
-      // allowing for more time, in case the machine is slow.
-      void runDelayed() {
-        new Timer(const Duration(milliseconds: 10), () {
-          if (outerTimerRan) {
-            scheduleMicrotask(() {
-              throw "scheduleMicrotask";
-            });
-            throw "delayed error";
-          } else if (outerTimerCounterDelayCount < 100) {
-            outerTimerCounterDelayCount++;
-            runDelayed();
-          }
-        });
-      }
-
-      runDelayed();
-    }).listen((x) {
-      events.add(x);
-      if (x == "scheduleMicrotask") {
-        throw "inner done throw";
-      }
-    });
-    events.add("after inner");
-    Timer.run(() {
-      outerTimerRan = true;
-      throw "timer outer";
-    });
-    throw "inner throw";
-  }).listen((x) {
-    events.add(x);
-    if (x == "inner done throw") done.complete(true);
-  }, onDone: () {
-    Expect.fail("Unexpected callback");
-  });
-
-  done.future.whenComplete(() {
-    // Give callbacks time to run.
-    Timer.run(() {
-      Expect.listEquals([
-        "catch error entry",
-        "catch error entry2",
-        "after inner",
-        "main exit",
-        "inner throw",
-        "timer error",
-        "timer outer",
-        "delayed error",
-        "scheduleMicrotask",
-        "inner done throw"
-      ], events);
-      asyncEnd();
-    });
-  });
-  events.add("main exit");
-}
diff --git a/tests/lib_2/async/catch_errors14_test.dart b/tests/lib_2/async/catch_errors14_test.dart
deleted file mode 100644
index e9562682c89..00000000000
--- a/tests/lib_2/async/catch_errors14_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  Completer done = new Completer();
-
-  var events = [];
-  // Test that periodic Timers are handled correctly by `catchErrors`.
-  catchErrors(() {
-    int counter = 0;
-    new Timer.periodic(const Duration(milliseconds: 50), (timer) {
-      if (counter++ == 5) {
-        timer.cancel();
-        done.complete(true);
-      }
-      throw "error $counter";
-    });
-  }).listen((x) {
-    events.add(x);
-  }, onDone: () {
-    Expect.fail("Unexpected callback");
-  });
-
-  done.future.whenComplete(() {
-    // Give time to complete the handlers.
-    Timer.run(() {
-      Expect.listEquals([
-        "main exit",
-        "error 1",
-        "error 2",
-        "error 3",
-        "error 4",
-        "error 5",
-        "error 6",
-      ], events);
-      asyncEnd();
-    });
-  });
-  events.add("main exit");
-}
diff --git a/tests/lib_2/async/catch_errors15_test.dart b/tests/lib_2/async/catch_errors15_test.dart
deleted file mode 100644
index 6962cb07170..00000000000
--- a/tests/lib_2/async/catch_errors15_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  Completer done = new Completer();
-  var events = [];
-
-  catchErrors(() {
-    events.add("catch error entry");
-    catchErrors(() {
-      events.add("catch error entry2");
-      new Future.error("future error");
-      new Future.error("future error2");
-      new Future.value(499).then((x) => throw x);
-      new Future.delayed(const Duration(milliseconds: 50), () {
-        throw "delayed error";
-      });
-      throw "catch error";
-    }).listen((x) {
-      events.add("i $x");
-      if (x == "delayed error") done.complete(true);
-    }, onDone: () {
-      Expect.fail("Unexpected callback");
-    });
-    events.add("after inner");
-    throw "inner throw";
-  }).listen((x) {
-    events.add("o $x");
-  }, onDone: () {
-    Expect.fail("Unexpected callback");
-  });
-  done.future.whenComplete(() {
-    // Give some time to run the handlers.
-    Timer.run(() {
-      Expect.listEquals([
-        "catch error entry",
-        "catch error entry2",
-        "after inner",
-        "main exit",
-        "i catch error",
-        // We guarantee the order of one stream but not any
-        // global order.
-        "o inner throw",
-        "i future error",
-        "i future error2",
-        "i 499",
-        "i delayed error",
-      ], events);
-      asyncEnd();
-    });
-  });
-  events.add("main exit");
-}
diff --git a/tests/lib_2/async/catch_errors16_test.dart b/tests/lib_2/async/catch_errors16_test.dart
deleted file mode 100644
index ffdecb9e676..00000000000
--- a/tests/lib_2/async/catch_errors16_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  var events = [];
-  StreamController controller = new StreamController();
-  Stream stream = controller.stream;
-  // Test that the subscription of a stream is what counts. The error (2) runs
-  // through the map-stream which goes through the nested `catchError` but
-  // the nested `catchError` won't see the error.
-  catchErrors(() {
-    stream = stream.map((x) => x + 100);
-  }).listen((x) {
-    events.add(x);
-  });
-  stream
-      .transform(new StreamTransformer.fromHandlers(handleError: (e, st, sink) {
-    sink.add("error $e");
-  })).listen((x) {
-    events.add("stream $x");
-  }, onDone: () {
-    Expect.listEquals([
-      "stream 101",
-      "stream error 2",
-    ], events);
-    asyncEnd();
-  });
-  controller.add(1);
-  controller.addError(2);
-  controller.close();
-}
diff --git a/tests/lib_2/async/catch_errors17_test.dart b/tests/lib_2/async/catch_errors17_test.dart
deleted file mode 100644
index 1ba81385742..00000000000
--- a/tests/lib_2/async/catch_errors17_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  Completer done = new Completer();
-
-  var events = [];
-  StreamController controller;
-  // Test that errors do not cross zone boundaries.
-  catchErrors(() {
-    catchErrors(() {
-      controller = new StreamController();
-      controller.stream.map((x) {
-        events.add("map $x");
-        return x + 100;
-      }).transform(
-          new StreamTransformer.fromHandlers(handleError: (e, st, sink) {
-        sink.add("error $e");
-      })).listen((x) {
-        events.add("stream $x");
-      });
-    }).listen((x) {
-      events.add(x);
-    });
-    controller.add(1);
-    controller.addError(2);
-    new Future.error("outer error");
-    controller.close();
-  }).listen((x) {
-    events.add("outer: $x");
-    if (x == "outer error") done.complete(true);
-  }, onDone: () {
-    Expect.fail("Unexpected callback");
-  });
-
-  done.future.whenComplete(() {
-    Timer.run(() {
-      Expect.listEquals([
-        "map 1",
-        "stream 101",
-        "stream error 2",
-        "outer: outer error",
-      ], events);
-      asyncEnd();
-    });
-  });
-}
diff --git a/tests/lib_2/async/catch_errors18_test.dart b/tests/lib_2/async/catch_errors18_test.dart
deleted file mode 100644
index d8f07938b77..00000000000
--- a/tests/lib_2/async/catch_errors18_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  Completer done = new Completer();
-
-  var events = [];
-  Stream stream =
-      new Stream.periodic(const Duration(milliseconds: 20), (x) => x);
-  // Test that errors of periodic streams are caught.
-  catchErrors(() {
-    var subscription;
-    subscription = stream.listen((x) {
-      if (x == 5) {
-        events.add("cancel");
-        subscription.cancel();
-        done.complete(true);
-        return;
-      }
-      events.add(x);
-    });
-  }).listen((x) {
-    events.add("outer: $x");
-  }, onDone: () {
-    Expect.fail("Unexpected callback");
-  });
-
-  done.future.whenComplete(() {
-    // Give handlers time to run.
-    Timer.run(() {
-      Expect.listEquals([0, 1, 2, 3, 4, "cancel"], events);
-      asyncEnd();
-    });
-  });
-}
diff --git a/tests/lib_2/async/catch_errors19_test.dart b/tests/lib_2/async/catch_errors19_test.dart
deleted file mode 100644
index 879462d55a6..00000000000
--- a/tests/lib_2/async/catch_errors19_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  Completer done = new Completer();
-
-  var events = [];
-  Stream stream =
-      new Stream.periodic(const Duration(milliseconds: 20), (x) => x);
-  // Test that asynchronous callbacks in the done-handler of streams (here
-  // the `catchErrors`-stream) keep a zone alive.
-  catchErrors(() {
-    var subscription;
-    subscription = stream.take(5).listen((x) {
-      events.add(x);
-    }, onDone: () {
-      new Future.delayed(const Duration(milliseconds: 30), () {
-        events.add(499);
-        done.complete(true);
-      });
-    });
-  }).listen((x) {
-    events.add("outer: $x");
-  }, onDone: () {
-    Expect.fail("Unexpected callback");
-  });
-
-  done.future.whenComplete(() {
-    // Give handlers time to run.
-    Timer.run(() {
-      Expect.listEquals([0, 1, 2, 3, 4, 499], events);
-      asyncEnd();
-    });
-  });
-}
diff --git a/tests/lib_2/async/catch_errors20_test.dart b/tests/lib_2/async/catch_errors20_test.dart
deleted file mode 100644
index 58b344a2e60..00000000000
--- a/tests/lib_2/async/catch_errors20_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  Completer done = new Completer();
-
-  var events = [];
-  // Test that nested stream (from `catchErrors`) that is delayed by a future
-  // is waited for.
-  catchErrors(() {
-    catchErrors(() {
-      new Future.error(499);
-      new Future.delayed(const Duration(milliseconds: 20), () {
-        events.add(42);
-        done.complete(true);
-      });
-    }).listen(events.add, onDone: () {
-      events.add("done");
-    });
-    throw "foo";
-  }).listen((x) {
-    events.add("outer: $x");
-  }, onDone: () {
-    Expect.fail("Unexpected callback");
-  });
-
-  done.future.whenComplete(() {
-    // Give handlers time to run.
-    Timer.run(() {
-      Expect.listEquals([
-        "outer: foo",
-        499,
-        42,
-      ], events);
-      asyncEnd();
-    });
-  });
-}
diff --git a/tests/lib_2/async/catch_errors21_test.dart b/tests/lib_2/async/catch_errors21_test.dart
deleted file mode 100644
index fe3bdce1a47..00000000000
--- a/tests/lib_2/async/catch_errors21_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  Completer done = new Completer();
-
-  var events = [];
-  var controller = new StreamController();
-  // Test that stream errors, as a result of bad user-code (`map`) are correctly
-  // caught by `catchErrors`. Note that the values are added outside both
-  // `catchErrors`, but since the `listen` happens in the most nested
-  // `catchErrors` it is caught there.
-  catchErrors(() {
-    catchErrors(() {
-      controller.stream.map((x) {
-        throw x;
-      }).listen((x) {
-        // Should not happen.
-        events.add("bad: $x");
-      });
-    }).listen((x) {
-      events.add("caught: $x");
-      if (x == 4) done.complete(true);
-    }, onDone: () {
-      Expect.fail("Unexpected callback");
-    });
-  }).listen((x) {
-    events.add("outer: $x");
-  }, onDone: () {
-    Expect.fail("Unexpected callback");
-  });
-
-  done.future.whenComplete(() {
-    // Give handlers time to run.
-    Timer.run(() {
-      Expect.listEquals([
-        "caught: 1",
-        "caught: 2",
-        "caught: 3",
-        "caught: 4",
-      ], events);
-      asyncEnd();
-    });
-  });
-
-  [1, 2, 3, 4].forEach(controller.add);
-  controller.close();
-}
diff --git a/tests/lib_2/async/catch_errors22_test.dart b/tests/lib_2/async/catch_errors22_test.dart
deleted file mode 100644
index c507622a0f8..00000000000
--- a/tests/lib_2/async/catch_errors22_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-
-  var events = [];
-  bool onDoneWasCalled = false;
-  var controller = new StreamController();
-  // Test that streams that are never closed keep the `catchError` alive.
-  catchErrors(() {
-    catchErrors(() {
-      controller.stream.map((x) {
-        throw x;
-      }).listen((x) {
-        // Should not happen.
-        events.add("bad: $x");
-      });
-    }).listen((x) {
-      events.add("caught: $x");
-    }, onDone: () {
-      events.add("done");
-    });
-  }).listen((x) {
-    events.add("outer: $x");
-  }, onDone: () {
-    onDoneWasCalled = true;
-  });
-
-  [1, 2, 3, 4].forEach(controller.add);
-
-  new Timer(const Duration(milliseconds: 20), () {
-    Expect.isFalse(onDoneWasCalled);
-    Expect.listEquals([
-      "caught: 1",
-      "caught: 2",
-      "caught: 3",
-      "caught: 4",
-    ], events);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/catch_errors23_test.dart b/tests/lib_2/async/catch_errors23_test.dart
deleted file mode 100644
index 655371e221f..00000000000
--- a/tests/lib_2/async/catch_errors23_test.dart
+++ /dev/null
@@ -1,81 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  Completer done = new Completer();
-
-  var events = [];
-  StreamController controller;
-  Stream stream;
-  // Test that errors are not traversing zone boundaries.
-  // Note that the first listener of `asBroadcastStream` determines in which
-  // zone the subscription lives.
-  catchErrors(() {
-    catchErrors(() {
-      controller = new StreamController();
-
-      // Assign to "global" `stream`.
-      stream = controller.stream.map((x) {
-        events.add("map $x");
-        return x + 100;
-      }).transform(
-          new StreamTransformer.fromHandlers(handleError: (e, st, sink) {
-        sink.add("error $e");
-      })).asBroadcastStream();
-
-      // Listen to `stream` in the inner zone.
-      stream.listen((x) {
-        events.add("stream $x");
-      });
-    })
-        .listen((x) {
-          events.add(x);
-        })
-        .asFuture()
-        .then((_) {
-          Expect.fail("Unexpected callback");
-        });
-
-    // Listen to `stream` in the outer zone.
-    stream.listen((x) {
-      events.add("stream2 $x");
-    });
-
-    // Feed the controller from the outer zone.
-    controller.add(1);
-    // `addError` does not count as zone-traversal. It should be caught by
-    // the inner error handler.
-    controller.addError("inner error");
-    new Future.error("caught by outer");
-    controller.close();
-  }).listen((x) {
-    events.add("outer: $x");
-    if (x == "caught by outer") done.complete(true);
-  }, onDone: () {
-    Expect.fail("Unexpected callback");
-  });
-
-  done.future.whenComplete(() {
-    // Give handlers time to run.
-    Timer.run(() {
-      Expect.listEquals([
-        "map 1",
-        "stream 101",
-        "stream2 101",
-        "stream error inner error",
-        "stream2 error inner error",
-        "outer: caught by outer",
-      ], events);
-      asyncEnd();
-    });
-  });
-}
diff --git a/tests/lib_2/async/catch_errors24_test.dart b/tests/lib_2/async/catch_errors24_test.dart
deleted file mode 100644
index 4c68d9f20aa..00000000000
--- a/tests/lib_2/async/catch_errors24_test.dart
+++ /dev/null
@@ -1,81 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  Completer done = new Completer();
-
-  var events = [];
-  StreamController controller;
-  Stream stream;
-  // Test that the first listen on a `asBroadcastStream` determines the
-  // zone the subscription lives in. In this case the outer listen happens first
-  // and the error reaches `handleError`.
-  catchErrors(() {
-    catchErrors(() {
-      controller = new StreamController();
-
-      // Assign to the "global" `stream`.
-      stream = controller.stream.map((x) {
-        events.add("map $x");
-        return x + 100;
-      }).transform(
-          new StreamTransformer.fromHandlers(handleError: (e, st, sink) {
-        sink.add("error $e");
-      })).asBroadcastStream();
-
-      // Listen to the `stream` in the inner zone (but wait in a microtask).
-      scheduleMicrotask(() {
-        stream.listen((x) {
-          events.add("stream $x");
-          if (x == "error 2") done.complete(true);
-        });
-      });
-    })
-        .listen((x) {
-          events.add(x);
-        })
-        .asFuture()
-        .then((_) {
-          Expect.fail("Unexpected callback");
-        });
-
-    // Listen to `stream` from the outer zone.
-    stream.listen((x) {
-      events.add("stream2 $x");
-    });
-
-    // Feed the controller, but wait in a microtask.
-    scheduleMicrotask(() {
-      controller.add(1);
-      controller.addError(2);
-      controller.close();
-    });
-  }).listen((x) {
-    events.add("outer: $x");
-  }, onDone: () {
-    Expect.fail("Unexpected callback");
-  });
-
-  done.future.whenComplete(() {
-    // Give handlers time to complete.
-    Timer.run(() {
-      Expect.listEquals([
-        "map 1",
-        "stream2 101",
-        "stream 101",
-        "stream2 error 2",
-        "stream error 2",
-      ], events);
-      asyncEnd();
-    });
-  });
-}
diff --git a/tests/lib_2/async/catch_errors25_test.dart b/tests/lib_2/async/catch_errors25_test.dart
deleted file mode 100644
index 2fc8be095b4..00000000000
--- a/tests/lib_2/async/catch_errors25_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  Completer done = new Completer();
-
-  var events = [];
-  StreamController controller;
-  // Test multiple subscribers of an asBroadcastStream inside the same
-  // `catchErrors`.
-  catchErrors(() {
-    var stream = new Stream.fromIterable([1, 2]).asBroadcastStream();
-    stream.listen(events.add);
-    stream.listen(events.add);
-    done.complete(stream.listen(null).asFuture());
-  }).listen((x) {
-    events.add("outer: $x");
-  }, onDone: () {
-    Expect.fail("Unexpected callback");
-  });
-
-  done.future.whenComplete(() {
-    // Give handlers time to run.
-    Timer.run(() {
-      Expect.listEquals([1, 1, 2, 2], events);
-      asyncEnd();
-    });
-  });
-}
diff --git a/tests/lib_2/async/catch_errors26_test.dart b/tests/lib_2/async/catch_errors26_test.dart
deleted file mode 100644
index 43d714851f7..00000000000
--- a/tests/lib_2/async/catch_errors26_test.dart
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  Completer done = new Completer();
-
-  var events = [];
-  StreamController controller;
-  Stream stream;
-  // Test `StreamController.broadcast` streams.
-  catchErrors(() {
-    catchErrors(() {
-      controller = new StreamController.broadcast();
-
-      // Listen to the stream from the inner zone.
-      controller.stream.map((x) {
-        events.add("map $x");
-        return x + 100;
-      }).transform(
-          new StreamTransformer.fromHandlers(handleError: (e, st, sink) {
-        sink.add("error $e");
-      })).listen((x) {
-        events.add("stream $x");
-      });
-    })
-        .listen((x) {
-          events.add(x);
-        })
-        .asFuture()
-        .then((_) {
-          Expect.fail("Unexpected callback");
-        });
-
-    // Listen to the stream from the outer zone.
-    controller.stream.listen((x) {
-      events.add("stream2 $x");
-    }, onError: (x) {
-      events.add("stream2 error $x");
-    });
-
-    // Feed the controller.
-    controller.add(1);
-    controller.addError("inner stream");
-    new Future.error("outer error");
-    controller.close();
-  }).listen((x) {
-    events.add("outer: $x");
-    if (x == "outer error") done.complete(true);
-  }, onDone: () {
-    Expect.fail("Unexpected callback");
-  });
-
-  done.future.whenComplete(() {
-    // Give handlers time to run.
-    Timer.run(() {
-      Expect.listEquals([
-        "map 1",
-        "stream 101",
-        "stream2 1",
-        "stream error inner stream",
-        "stream2 error inner stream",
-        "outer: outer error",
-      ], events);
-      asyncEnd();
-    });
-  });
-}
diff --git a/tests/lib_2/async/catch_errors27_test.dart b/tests/lib_2/async/catch_errors27_test.dart
deleted file mode 100644
index f829b41e6da..00000000000
--- a/tests/lib_2/async/catch_errors27_test.dart
+++ /dev/null
@@ -1,81 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  Completer done = new Completer();
-
-  var events = [];
-  StreamController controller;
-  Stream stream;
-  // Test that streams live in the zone they have been listened too.
-  // It doesn't matter how many zone-boundaries the stream traverses. What
-  // counts is the zone where `listen` was invoked.
-  catchErrors(() {
-    catchErrors(() {
-      controller = new StreamController();
-
-      // Assignment to "global" `stream`.
-      stream = controller.stream.map((x) {
-        events.add("map $x");
-        return x + 100;
-      }).asBroadcastStream();
-
-      // Consume stream in the nested zone.
-      stream.transform(
-          new StreamTransformer.fromHandlers(handleError: (e, st, sink) {
-        sink.add("error $e");
-      })).listen((x) {
-        events.add("stream $x");
-      });
-
-      // Feed the controller in the nested zone.
-      scheduleMicrotask(() {
-        controller.add(1);
-        controller.addError(2);
-        controller.close();
-        new Future.error("done");
-      });
-    })
-        .listen((x) {
-          events.add("listen: $x");
-          if (x == "done") done.complete(true);
-        })
-        .asFuture()
-        .then((_) {
-          Expect.fail("Unexpected callback");
-        });
-
-    // Listen to stream in outer zone.
-    stream.listen((x) {
-      events.add("stream2 $x");
-    });
-  }).listen((x) {
-    events.add("outer: $x");
-  }, onDone: () {
-    Expect.fail("Unexpected callback");
-  });
-
-  done.future.whenComplete(() {
-    // Give handlers time to run.
-    Timer.run(() {
-      Expect.listEquals([
-        "map 1",
-        "stream 101",
-        "stream2 101",
-        "stream error 2",
-        "listen: done",
-        "outer: 2",
-      ], events);
-      asyncEnd();
-    });
-  });
-}
diff --git a/tests/lib_2/async/catch_errors28_test.dart b/tests/lib_2/async/catch_errors28_test.dart
deleted file mode 100644
index 2d1a4d6f8da..00000000000
--- a/tests/lib_2/async/catch_errors28_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  Completer done = new Completer();
-
-  var events = [];
-  // Test that periodic Timers are handled correctly by `catchErrors`.
-  catchErrors(() {
-    int counter = 0;
-    new Timer.periodic(const Duration(milliseconds: 50), (timer) {
-      if (counter == 5) {
-        timer.cancel();
-        done.complete(true);
-      }
-      counter++;
-      events.add(counter);
-    });
-  }).listen((x) {
-    events.add(x);
-  }, onDone: () {
-    Expect.fail("Unexpected callback");
-  });
-
-  done.future.whenComplete(() {
-    // Give handlers time to run.
-    Timer.run(() {
-      Expect.listEquals([
-        "main exit",
-        1,
-        2,
-        3,
-        4,
-        5,
-        6,
-      ], events);
-      asyncEnd();
-    });
-  });
-
-  events.add("main exit");
-}
diff --git a/tests/lib_2/async/catch_errors2_test.dart b/tests/lib_2/async/catch_errors2_test.dart
deleted file mode 100644
index eb61bc43e82..00000000000
--- a/tests/lib_2/async/catch_errors2_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  bool futureWasExecuted = false;
-  Future done;
-
-  // Error streams never close.
-  catchErrors(() {
-    done = new Future(() {
-      futureWasExecuted = true;
-    });
-    return 'allDone';
-  }).listen((x) {
-    Expect.fail("Unexpected callback");
-  }, onDone: () {
-    Expect.fail("Unexpected callback");
-  });
-
-  done.whenComplete(asyncEnd);
-}
diff --git a/tests/lib_2/async/catch_errors3_test.dart b/tests/lib_2/async/catch_errors3_test.dart
deleted file mode 100644
index f55cf5a01f3..00000000000
--- a/tests/lib_2/async/catch_errors3_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  Completer done = new Completer();
-  bool futureWasExecuted = false;
-  bool future2WasExecuted = false;
-
-  // Make sure `catchErrors` never closes its stream.
-  catchErrors(() {
-    new Future(() => 499).then((x) {
-      futureWasExecuted = true;
-    });
-    scheduleMicrotask(() {
-      new Future(() => 42).then((x) {
-        future2WasExecuted = true;
-        Expect.isTrue(futureWasExecuted);
-        done.complete(true);
-      });
-    });
-    return 'allDone';
-  }).listen((x) {
-    Expect.fail("Unexpected callback");
-  }, onDone: () {
-    Expect.fail("Unexpected callback");
-  });
-  done.future.whenComplete(asyncEnd);
-}
diff --git a/tests/lib_2/async/catch_errors4_test.dart b/tests/lib_2/async/catch_errors4_test.dart
deleted file mode 100644
index 7290634a325..00000000000
--- a/tests/lib_2/async/catch_errors4_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  Completer done = new Completer();
-
-  var events = [];
-  // Test that synchronous errors inside a `catchErrors` are caught.
-  catchErrors(() {
-    events.add("catch error entry");
-    throw "catch error";
-  }).listen((x) {
-    events.add(x);
-    done.complete(true);
-  }, onDone: () {
-    Expect.fail("Unexpected callback");
-  });
-
-  done.future.whenComplete(() {
-    Expect.listEquals([
-      "catch error entry",
-      "main exit",
-      "catch error",
-    ], events);
-    asyncEnd();
-  });
-  events.add("main exit");
-}
diff --git a/tests/lib_2/async/catch_errors5_test.dart b/tests/lib_2/async/catch_errors5_test.dart
deleted file mode 100644
index 01d81ae3170..00000000000
--- a/tests/lib_2/async/catch_errors5_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  Completer done = new Completer();
-
-  var events = [];
-  // Test that synchronous *and* asynchronous errors are caught by
-  // `catchErrors`.
-  catchErrors(() {
-    events.add("catch error entry");
-    Future errorFuture = new Future.error("future error");
-    errorFuture.whenComplete(() => done.complete(true));
-    throw "catch error";
-  }).listen((x) {
-    events.add(x);
-  }, onDone: () {
-    Expect.fail("Unexpected callback");
-  });
-
-  done.future.whenComplete(() {
-    // Give some time for the event listener to execute.
-    Timer.run(() {
-      Expect.listEquals([
-        "catch error entry",
-        "main exit",
-        "catch error",
-        "future error",
-      ], events);
-      asyncEnd();
-    });
-  });
-  events.add("main exit");
-}
diff --git a/tests/lib_2/async/catch_errors6_test.dart b/tests/lib_2/async/catch_errors6_test.dart
deleted file mode 100644
index f4b70fa9133..00000000000
--- a/tests/lib_2/async/catch_errors6_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  var completer = new Completer();
-  var errorHandlerOrDoneHasBeenExecuted = false;
-  // Test that `catchErrors` doesn't shut down if a future is never completed.
-  catchErrors(() {
-    completer.future.then((x) {
-      Expect.fail("should not be executed");
-    });
-  }).listen((x) {
-    errorHandlerOrDoneHasBeenExecuted = true;
-    Expect.fail("should not be executed (listen)");
-  }, onDone: () {
-    errorHandlerOrDoneHasBeenExecuted = true;
-    Expect.fail("should not be executed (onDone)");
-  });
-  Timer.run(() {
-    Expect.isFalse(errorHandlerOrDoneHasBeenExecuted);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/catch_errors7_test.dart b/tests/lib_2/async/catch_errors7_test.dart
deleted file mode 100644
index 32b37b1a13d..00000000000
--- a/tests/lib_2/async/catch_errors7_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  Completer done = new Completer();
-
-  var events = [];
-  // Test that asynchronous errors are caught.
-  catchErrors(() {
-    events.add("catch error entry");
-    var futures = [
-      new Future.error("future error"),
-      new Future.error("future error2"),
-      new Future.value(499).then((x) => throw x),
-    ];
-    int completedCount = 0;
-    for (var future in futures) {
-      future.whenComplete(() {
-        completedCount++;
-        if (completedCount == 3) done.complete(true);
-      });
-    }
-    throw "catch error";
-  }).listen((x) {
-    events.add(x);
-  }, onDone: () {
-    Expect.fail("Unexpected callback");
-  });
-
-  done.future.whenComplete(() {
-    // Give handlers time to execute.
-    Timer.run(() {
-      Expect.listEquals([
-        "catch error entry",
-        "main exit",
-        "catch error",
-        "future error",
-        "future error2",
-        499,
-      ], events);
-      asyncEnd();
-    });
-  });
-  events.add("main exit");
-}
diff --git a/tests/lib_2/async/catch_errors8_test.dart b/tests/lib_2/async/catch_errors8_test.dart
deleted file mode 100644
index 05f31e9445f..00000000000
--- a/tests/lib_2/async/catch_errors8_test.dart
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  Completer done = new Completer();
-
-  var events = [];
-  // Test nested `catchErrors`.
-  // The nested `catchErrors` throws all kinds of different errors (synchronous
-  // and asynchronous). The body of the outer `catchErrors` furthermore has a
-  // synchronous `throw`.
-  catchErrors(() {
-    events.add("catch error entry");
-    catchErrors(() {
-      events.add("catch error entry2");
-      new Future.error("future error");
-      new Future.error("future error2");
-      new Future.value(499).then((x) => throw x);
-      new Future.delayed(const Duration(milliseconds: 50), () {
-        throw "delayed error";
-      });
-      throw "catch error";
-    }).listen((x) {
-      events.add(x);
-      if (x == "delayed error") {
-        throw "inner done throw";
-      }
-    });
-    events.add("after inner");
-    throw "inner throw";
-  }).listen((x) {
-    events.add(x);
-    if (x == "inner done throw") {
-      done.complete(true);
-    }
-  }, onDone: () {
-    Expect.fail("Unexpected callback");
-  });
-
-  done.future.whenComplete(() {
-    Expect.listEquals([
-      "catch error entry",
-      "catch error entry2",
-      "after inner",
-      "main exit",
-      "catch error",
-      "inner throw",
-      "future error",
-      "future error2",
-      499,
-      "delayed error",
-      "inner done throw"
-    ], events);
-    asyncEnd();
-  });
-  events.add("main exit");
-}
diff --git a/tests/lib_2/async/catch_errors_test.dart b/tests/lib_2/async/catch_errors_test.dart
deleted file mode 100644
index aa3c20eb141..00000000000
--- a/tests/lib_2/async/catch_errors_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-
-  // Make sure `catchErrors` does not execute the error callback.
-  catchErrors(() {
-    return 'allDone';
-  }).listen((x) {
-    Expect.fail("Unexpected callback");
-  });
-
-  // Wait one cycle before shutting down the test.
-  Timer.run(asyncEnd);
-}
diff --git a/tests/lib_2/async/dart2js_uncaught_error_test.dart b/tests/lib_2/async/dart2js_uncaught_error_test.dart
deleted file mode 100644
index faaeab8201f..00000000000
--- a/tests/lib_2/async/dart2js_uncaught_error_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// TODO(bkonyi): This test should be moved to compiler/dart2js.
-
-import "dart:async";
-import "dart:js";
-import "dart:collection" show Queue;
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-var errors = new Queue();
-int ctr = 0;
-
-main() {
-  print("STARTED");
-  asyncStart();
-
-  void errorHandler(self, message, url, line, [column, error]) {
-    print(">> $message / $ctr");
-    var expect = errors.removeFirst();
-    if (ctr == 2) {
-      asyncEnd();
-      print("DONE");
-    }
-    Expect.equals(expect[0].toString(), message);
-    Expect.equals(expect[1].toString(), error["stack"].toString());
-  }
-
-  context["onerror"] = new JsFunction.withThis(errorHandler);
-
-  void throwit() {
-    var err = ++ctr;
-    try {
-      throw err;
-    } catch (e, s) {
-      errors.add([e, s]);
-      rethrow;
-    }
-  }
-
-  () async {
-    () async {
-      throwit();
-    }();
-    throwit();
-  }();
-}
diff --git a/tests/lib_2/async/event_helper.dart b/tests/lib_2/async/event_helper.dart
deleted file mode 100644
index 3dd075095c6..00000000000
--- a/tests/lib_2/async/event_helper.dart
+++ /dev/null
@@ -1,186 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library event_helper;
-
-import 'dart:async';
-
-abstract class Event {
-  void replay(EventSink sink);
-}
-
-class DataEvent implements Event {
-  final data;
-
-  DataEvent(this.data);
-
-  void replay(EventSink sink) {
-    sink.add(data);
-  }
-
-  int get hashCode => data.hashCode;
-
-  bool operator ==(Object other) {
-    if (other is! DataEvent) return false;
-    DataEvent otherEvent = other;
-    return data == otherEvent.data;
-  }
-
-  String toString() => "DataEvent: $data";
-}
-
-class ErrorEvent implements Event {
-  final error;
-
-  ErrorEvent(this.error);
-
-  void replay(EventSink sink) {
-    sink.addError(error);
-  }
-
-  int get hashCode => error.error.hashCode;
-
-  bool operator ==(Object other) {
-    if (other is! ErrorEvent) return false;
-    ErrorEvent otherEvent = other;
-    return error == otherEvent.error;
-  }
-
-  String toString() => "ErrorEvent: ${error}";
-}
-
-class DoneEvent implements Event {
-  const DoneEvent();
-
-  void replay(EventSink sink) {
-    sink.close();
-  }
-
-  int get hashCode => 42;
-
-  bool operator ==(Object other) => other is DoneEvent;
-
-  String toString() => "DoneEvent";
-}
-
-/** Collector of events. */
-class Events implements EventSink {
-  final List<Event> events = [];
-  bool trace = false;
-  Completer onDoneSignal = new Completer();
-
-  Events();
-
-  Events.fromIterable(Iterable iterable) {
-    for (var value in iterable) add(value);
-    close();
-  }
-
-  /** Capture events from a stream into a new [Events] object. */
-  factory Events.capture(Stream stream, {bool cancelOnError}) = CaptureEvents;
-
-  // EventSink interface.
-  void add(var value) {
-    if (trace) print("Events#$hashCode: add($value)");
-    events.add(new DataEvent(value));
-  }
-
-  void addError(error, [StackTrace stackTrace]) {
-    if (trace) print("Events#$hashCode: addError($error)");
-    events.add(new ErrorEvent(error));
-  }
-
-  void close() {
-    if (trace) print("Events#$hashCode: close()");
-    events.add(const DoneEvent());
-    onDoneSignal.complete();
-  }
-
-  /**
-   * Error shorthand, for writing events manually.
-   */
-  void error(var value, [StackTrace stackTrace]) {
-    addError(value, stackTrace);
-  }
-
-  /** Replay the captured events on a sink. */
-  void replay(EventSink sink) {
-    for (int i = 0; i < events.length; i++) {
-      events[i].replay(sink);
-    }
-  }
-
-  /**
-   * Create a new [Events] with the same captured events.
-   *
-   * This does not copy a subscription.
-   */
-  Events copy() {
-    Events result = new Events();
-    replay(result);
-    return result;
-  }
-
-  // Operations that only work when there is a subscription feeding the Events.
-
-  /**
-   * Pauses the subscription that feeds this [Events].
-   *
-   * Should only be used when there is a subscription. That is, after a
-   * call to [subscribeTo].
-   */
-  void pause([Future resumeSignal]) {
-    throw new StateError("Not capturing events.");
-  }
-
-  /** Resumes after a call to [pause]. */
-  void resume() {
-    throw new StateError("Not capturing events.");
-  }
-
-  /**
-   * Sets an action to be called when this [Events] receives a 'done' event.
-   *
-   * The action will also be called if capturing events from a stream with
-   * `cancelOnError` set to true and receiving an error.
-   */
-  void onDone(void action()) {
-    onDoneSignal.future.whenComplete(action);
-  }
-}
-
-class CaptureEvents extends Events {
-  StreamSubscription subscription;
-  bool cancelOnError = false;
-
-  CaptureEvents(Stream stream, {bool cancelOnError: false}) {
-    this.cancelOnError = cancelOnError;
-    subscription = stream.listen(add,
-        onError: addError, onDone: close, cancelOnError: cancelOnError);
-  }
-
-  void addError(error, [stackTrace]) {
-    super.addError(error, stackTrace);
-    if (cancelOnError) {
-      onDoneSignal.complete();
-    }
-  }
-
-  void pause([Future resumeSignal]) {
-    if (trace) print("Events#$hashCode: pause");
-    subscription.pause(resumeSignal);
-  }
-
-  void resume() {
-    if (trace) print("Events#$hashCode: resume");
-    subscription.resume();
-  }
-
-  void onDone(void action()) {
-    if (trace) print("Events#$hashCode: onDone");
-    super.onDone(action);
-  }
-}
diff --git a/tests/lib_2/async/first_regression_test.dart b/tests/lib_2/async/first_regression_test.dart
deleted file mode 100644
index c0d49e5e73d..00000000000
--- a/tests/lib_2/async/first_regression_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for http://dartbug.com/7964
-
-library first_regression_test;
-
-import 'dart:async';
-
-class DoubleTransformer<T> extends StreamTransformerBase<T, T> {
-  Stream<T> bind(Stream<T> stream) {
-    var transformer = new StreamTransformer<T, T>.fromHandlers(
-        handleData: (T data, EventSink<T> sink) {
-      sink.add(data);
-      sink.add(data);
-    });
-    return transformer.bind(stream);
-  }
-}
-
-main() async {
-  // This should not crash. Did crash by trying to complete future more
-  // than once.
-  await (new Stream.fromIterable([1, 2]).transform(new DoubleTransformer()))
-      .first;
-}
diff --git a/tests/lib_2/async/future_constructor2_test.dart b/tests/lib_2/async/future_constructor2_test.dart
deleted file mode 100644
index 29693b139c3..00000000000
--- a/tests/lib_2/async/future_constructor2_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library future_delayed_test;
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-
-Future<int> createIntFuture() {
-  return new Future<int>.value(499);
-}
-
-unnamed() {
-  asyncStart();
-  new Future<int>(createIntFuture).then((x) {
-    Expect.equals(499, x);
-    asyncEnd();
-  });
-}
-
-delayed() {
-  asyncStart();
-  new Future<int>.delayed(const Duration(milliseconds: 2), createIntFuture)
-      .then((x) {
-    Expect.equals(499, x);
-    asyncEnd();
-  });
-}
-
-microtask() {
-  asyncStart();
-  new Future<int>.microtask(createIntFuture).then((x) {
-    Expect.equals(499, x);
-    asyncEnd();
-  });
-}
-
-sync() {
-  asyncStart();
-  new Future<int>.sync(createIntFuture).then((x) {
-    Expect.equals(499, x);
-    asyncEnd();
-  });
-}
-
-main() {
-  asyncStart();
-  // Test that all the Future constructors take functions that return a Future
-  // as argument.
-  // In particular the constructors must not type their argument as
-  // `T computation()`.
-  unnamed();
-  delayed();
-  microtask();
-  sync();
-  asyncEnd();
-}
diff --git a/tests/lib_2/async/future_constructor_test.dart b/tests/lib_2/async/future_constructor_test.dart
deleted file mode 100644
index 6d97507f100..00000000000
--- a/tests/lib_2/async/future_constructor_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library future_test;
-
-import "package:expect/expect.dart";
-import 'dart:async';
-
-main() {
-  compare(func) {
-    // Compare the results of the following two futures.
-    Future f1 = new Future(func);
-    Future f2 = new Future.value().then((_) => func());
-    f2.catchError((_) {}); // I'll get the error later.
-    f1.then((v1) {
-      f2.then((v2) {
-        Expect.equals(v1, v2);
-      });
-    }, onError: (e1) {
-      f2.then((_) {
-        Expect.fail("Expected error");
-      }, onError: (e2) {
-        Expect.equals(e1, e2);
-      });
-    });
-  }
-
-  Future val = new Future.value(42);
-  Future err1 = new Future.error("Error")..catchError((_) {});
-  compare(() => 42);
-  compare(() => val);
-  compare(() {
-    throw "Flif";
-  });
-  compare(() => err1);
-  bool hasExecuted = false;
-  compare(() {
-    hasExecuted = true;
-    return 499;
-  });
-  Expect.isFalse(hasExecuted);
-}
diff --git a/tests/lib_2/async/future_delayed_error_test.dart b/tests/lib_2/async/future_delayed_error_test.dart
deleted file mode 100644
index af60b02ad15..00000000000
--- a/tests/lib_2/async/future_delayed_error_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library future_delayed_error_test;
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-
-testImmediateError() {
-  asyncStart();
-  var future = new Future.error("error");
-  future.catchError((error) {
-    Expect.equals(error, "error");
-    asyncEnd();
-  });
-}
-
-Future get completedFuture {
-  var completer = new Completer();
-  completer.completeError("foobar");
-  return completer.future;
-}
-
-testDelayedError() {
-  asyncStart();
-  completedFuture.catchError((error) {
-    Expect.equals(error, "foobar");
-    asyncEnd();
-  });
-}
-
-main() {
-  testImmediateError();
-  testDelayedError();
-}
diff --git a/tests/lib_2/async/future_error_test.dart b/tests/lib_2/async/future_error_test.dart
deleted file mode 100644
index 483b4815c1f..00000000000
--- a/tests/lib_2/async/future_error_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-
-main() {
-  // The error cannot be null.
-  Expect.throwsTypeError(() {
-    Future.error(null);
-  });
-}
diff --git a/tests/lib_2/async/future_extension_test.dart b/tests/lib_2/async/future_extension_test.dart
deleted file mode 100644
index 769a0f52e53..00000000000
--- a/tests/lib_2/async/future_extension_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart=2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async' show Completer, runZonedGuarded;
-import '../../language_2/static_type_helper.dart';
-
-void main() {
-  testIgnore();
-}
-
-void testIgnore() {
-  var future = Future<int>.value(42);
-  captureStaticType(future.ignore(), <T>(T value) {
-    Expect.equals(typeOf<void>(), T);
-  });
-
-  asyncStart();
-  // Ignored futures can still be listened to.
-  {
-    var c = Completer<int>.sync();
-    var f = c.future;
-    f.ignore();
-    asyncStart();
-    f.catchError((e) {
-      Expect.equals("ERROR1", e);
-      asyncEnd();
-      return 0;
-    });
-    c.completeError("ERROR1");
-  }
-
-  // Ignored futures are not uncaught errors.
-  {
-    asyncStart();
-    bool threw = false;
-    runZonedGuarded(() {
-      var c = Completer<int>.sync();
-      var f = c.future;
-      f.ignore();
-      c.completeError("ERROR2");
-    }, (e, s) {
-      threw = true;
-      Expect.fail("Should not happen: $e");
-    });
-    Future.delayed(Duration.zero, () {
-      if (threw) Expect.fail("Future not ignored.");
-      asyncEnd();
-    });
-  }
-  asyncEnd();
-}
diff --git a/tests/lib_2/async/future_foreach_test.dart b/tests/lib_2/async/future_foreach_test.dart
deleted file mode 100644
index 723a91e273d..00000000000
--- a/tests/lib_2/async/future_foreach_test.dart
+++ /dev/null
@@ -1,113 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library future_foreach_test;
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-
-main() {
-  asyncStart();
-
-  testForeach(<int>[]);
-  testForeach(<int>[0]);
-  testForeach(<int>[0, 1, 2, 3]);
-
-  testForeachIterableThrows(
-      new Iterable<int>.generate(5, (i) => i < 4 ? i : throw "ERROR"),
-      4,
-      "ERROR");
-
-  testForeachFunctionThrows(new Iterable<int>.generate(5, (x) => x), 4);
-
-  asyncEnd();
-}
-
-void testForeach(Iterable<int> elements) {
-  for (var delay in [0, 1, 2]) {
-    asyncStart();
-    int length = elements.length;
-    int count = 0;
-    int nesting = 0;
-    Future.forEach<int>(elements, (int value) {
-      Expect.isTrue(nesting == 0, "overlapping calls detected");
-      if (delay == 0) return "something-$delay";
-      nesting++;
-      var future;
-      if (delay == 1) {
-        future = new Future(() => null);
-      } else {
-        future = new Future.microtask(() => null);
-      }
-      return future.then<String>((_) {
-        Expect.equals(1, nesting);
-        nesting--;
-        return "something-$delay";
-      });
-    }).then((_) {
-      asyncEnd();
-    }).catchError((e) {
-      Expect.fail("Throws: $e");
-    });
-  }
-}
-
-void testForeachIterableThrows(Iterable<int> elements, n, error) {
-  for (var delay in [0, 1, 2]) {
-    asyncStart();
-    int count = 0;
-    Future.forEach<int>(elements, (_) {
-      count++;
-      Expect.isTrue(n >= 0);
-      switch (delay) {
-        case 1:
-          return new Future<String>(() {});
-        case 2:
-          return new Future<String>.microtask(() {});
-      }
-    }).then((_) {
-      Expect.fail("Did not throw");
-    }, onError: (e) {
-      Expect.equals(n, count);
-      Expect.equals(error, e);
-      asyncEnd();
-    });
-  }
-}
-
-void testForeachFunctionThrows(Iterable<int> elements, n) {
-  for (var delay in [0, 1, 2]) {
-    asyncStart();
-    Future.forEach<int>(elements, (v) {
-      if (v == n) {
-        switch (delay) {
-          case 0:
-            throw "ERROR";
-          case 1:
-            return new Future<String>(() {
-              throw "ERROR";
-            });
-          case 2:
-            return new Future<String>.microtask(() {
-              throw "ERROR";
-            });
-        }
-      }
-      switch (delay) {
-        case 1:
-          return new Future(() {});
-        case 2:
-          return new Future.microtask(() {});
-      }
-    }).then((_) {
-      Expect.fail("Did not throw");
-    }, onError: (e) {
-      Expect.equals("ERROR", e);
-      asyncEnd();
-    });
-  }
-}
diff --git a/tests/lib_2/async/future_future_test.dart b/tests/lib_2/async/future_future_test.dart
deleted file mode 100644
index 1d4a0a94684..00000000000
--- a/tests/lib_2/async/future_future_test.dart
+++ /dev/null
@@ -1,189 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Checks that Future<Future<int>> is a valid type and that futures can contain
-// and complete other futures.
-
-// This essentially checks that `FutureOr<X>` is treated correctly depending
-// on what `X` is.
-
-import 'dart:async';
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-
-main() {
-  asyncStart();
-
-  // Helper values.
-  Future<Null> nullFuture = Future<Null>.value(null);
-
-  var stack = StackTrace.current;
-  var error = ArgumentError("yep");
-  Future<Null> errorFuture = Future<Null>.error(error, stack)
-    ..catchError((_) => null);
-  Future<int> fi(int n) => Future<int>.value(n);
-
-  // Tests that Future<Future<int>> can be created.
-  Future<Future<int>> ffi(n) => Future<Future<int>>.value(fi(n));
-
-  asyncTest(() {
-    return expectFutureFutureInt(ffi(0), 0);
-  });
-
-  // Check `Future.then`'s callback.
-
-  asyncTest(() {
-    Future<int> future = nullFuture.then<int>((_) => fi(1));
-    return expectFutureInt(future, 1);
-  });
-
-  asyncTest(() {
-    Future<Future<int>> future = nullFuture.then<Future<int>>((_) => fi(2));
-    return expectFutureFutureInt(future, 2);
-  });
-
-  asyncTest(() {
-    Future<Future<int>> future = nullFuture.then<Future<int>>((_) => ffi(3));
-    return expectFutureFutureInt(future, 3);
-  });
-
-  // Check `Future.then`'s `onError`.
-
-  asyncTest(() {
-    Future<int> future =
-        errorFuture.then<int>((_) => -1, onError: (_) => fi(4));
-    return expectFutureInt(future, 4);
-  });
-
-  asyncTest(() {
-    Future<Future<int>> future =
-        errorFuture.then<Future<int>>((_) => fi(-1), onError: (_) => fi(5));
-    return expectFutureFutureInt(future, 5);
-  });
-
-  asyncTest(() {
-    Future<Future<int>> future =
-        errorFuture.then<Future<int>>((_) => fi(-1), onError: (_) => ffi(6));
-    return expectFutureFutureInt(future, 6);
-  });
-
-  // Checkc Future.catchError, it's FutureOr is based on the
-  // original future's type.
-
-  asyncTest(() {
-    Future<int> errorFuture = Future<int>.error(error, stack);
-    Future<int> future = errorFuture.catchError((_) => fi(7));
-    return expectFutureInt(future, 7);
-  });
-
-  asyncTest(() {
-    Future<Future<int>> errorFuture = Future<Future<int>>.error(error, stack);
-    Future<Future<int>> future = errorFuture.catchError((_) => fi(8));
-    return expectFutureFutureInt(future, 8);
-  });
-
-  asyncTest(() {
-    Future<Future<int>> errorFuture = Future<Future<int>>.error(error, stack);
-    Future<Future<int>> future = errorFuture.catchError((_) => ffi(9));
-    return expectFutureFutureInt(future, 9);
-  });
-
-  // Check Completer.complete.
-
-  asyncTest(() {
-    var completer = Completer<int>()..complete(fi(10));
-    return expectFutureInt(completer.future, 10);
-  });
-
-  asyncTest(() {
-    var completer = Completer<Future<int>>()..complete(fi(11));
-    return expectFutureFutureInt(completer.future, 11);
-  });
-
-  asyncTest(() {
-    var completer = Completer<Future<int>>()..complete(ffi(12));
-    return expectFutureFutureInt(completer.future, 12);
-  });
-
-  // Future<Object> works correctly when Object is another Future.
-  asyncTest(() {
-    Future<Object> future = nullFuture.then<Object>((_) => fi(13));
-    Expect.type<Future<Object>>(future);
-    Expect.notType<Future<int>>(future);
-    return future.then<void>((o) {
-      Expect.equals(13, o);
-    });
-  });
-
-  asyncTest(() {
-    Future<Object> future = nullFuture.then<Object>((_) => ffi(14));
-    Expect.type<Future<Object>>(future);
-    Expect.notType<Future<int>>(future);
-    Expect.notType<Future<Future<int>>>(future);
-    return future.then<void>((v) => expectFutureInt(v, 14));
-  });
-
-  asyncTest(() {
-    Future<Object> future =
-        errorFuture.then<Object>((_) => -1, onError: (_) => fi(15));
-    Expect.type<Future<Object>>(future);
-    Expect.notType<Future<int>>(future);
-    return future.then<void>((o) {
-      Expect.equals(15, o);
-    });
-  });
-
-  asyncTest(() {
-    Future<Object> future =
-        errorFuture.then<Object>((_) => -1, onError: (_) => ffi(16));
-    Expect.type<Future<Object>>(future);
-    Expect.notType<Future<int>>(future);
-    Expect.notType<Future<Future<int>>>(future);
-    return future.then<void>((v) => expectFutureInt(v, 16));
-  });
-
-  asyncTest(() {
-    Future<Object> errorFuture = Future<Object>.error(error, stack);
-    Future<Object> future = errorFuture.catchError((_) => fi(17));
-    Expect.type<Future<Object>>(future);
-    Expect.notType<Future<int>>(future);
-    return future.then<void>((o) {
-      Expect.equals(17, o);
-    });
-  });
-
-  asyncTest(() {
-    Future<Object> errorFuture = Future<Object>.error(error, stack);
-    Future<Object> future = errorFuture.catchError((_) => ffi(18));
-    Expect.type<Future<Object>>(future);
-    Expect.notType<Future<int>>(future);
-    Expect.notType<Future<Future<int>>>(future);
-    return future.then<void>((v) => expectFutureInt(v, 18));
-  });
-
-  asyncEnd();
-}
-
-// Checks that future is a Future<Future<int>> containing the value Future<int>
-// which then contains the value 42.
-Future<void> expectFutureFutureInt(dynamic future, int n) {
-  Expect.type<Future<Future<int>>>(future);
-  asyncStart();
-  return future.then<void>((dynamic v) {
-    Expect.type<Future<int>>(v, "$n");
-    return expectFutureInt(v, n).then(asyncSuccess);
-  });
-}
-
-Future<void> expectFutureInt(dynamic future, int n) {
-  Expect.type<Future<int>>(future);
-  asyncStart();
-  return future.then<void>((dynamic v) {
-    Expect.type<int>(v, "$n");
-    Expect.equals(n, v);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/future_microtask_test.dart b/tests/lib_2/async/future_microtask_test.dart
deleted file mode 100644
index 78a5808aadd..00000000000
--- a/tests/lib_2/async/future_microtask_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'package:async_helper/async_helper.dart';
-
-main() {
-  asyncStart();
-  dynamic x = 499;
-  scheduleMicrotask(() {
-    Expect.equals(499, x);
-    x = 42;
-  });
-  new Future.microtask(() {
-    Expect.equals(42, x);
-    x = null;
-    return 99;
-  }).then((val) {
-    Expect.isNull(x);
-    Expect.equals(99, val);
-    x = "foo";
-  });
-  scheduleMicrotask(() {
-    Expect.equals("foo", x);
-    x = "toto";
-    asyncEnd();
-  });
-
-  asyncStart();
-  new Future.microtask(() {
-    throw "foo";
-  }).catchError((e, stackTrace) {
-    Expect.equals("foo", e);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/future_or_bad_type_test.dart b/tests/lib_2/async/future_or_bad_type_test.dart
deleted file mode 100644
index 96ee05a534a..00000000000
--- a/tests/lib_2/async/future_or_bad_type_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// In non strong-mode, `FutureOr<T>` is dynamic, even if `T` doesn't exist.
-// `FutureOr<T>` can not be used as superclass, mixin, nor can it be
-// implemented (as interface).
-
-import 'dart:async';
-import 'package:expect/expect.dart';
-
-class A extends FutureOr<String> {}
-//    ^
-// [cfe] The superclass, 'FutureOr', has no unnamed constructor that takes no arguments.
-//              ^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-class B with FutureOr<bool> {}
-//    ^
-// [cfe] Can't use 'FutureOr' as a mixin because it has constructors.
-//           ^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-class C implements FutureOr<int> {}
-//    ^
-// [cfe] The type 'FutureOr' can't be used in an 'implements' clause.
-//                 ^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-main() {}
diff --git a/tests/lib_2/async/future_or_only_in_async_test.dart b/tests/lib_2/async/future_or_only_in_async_test.dart
deleted file mode 100644
index 5af0a85c55a..00000000000
--- a/tests/lib_2/async/future_or_only_in_async_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// `FutureOr<T>` is only visible when `dart:async` is imported.
-
-dynamic foo(dynamic x) {
-  return x as 
-      FutureOr<    //# 00: compile-time error
-          int
-      > //         //# 00: continued
-      ;
-}
-
-main() {
-  if (499 != foo(499)) throw "bad";
-}
diff --git a/tests/lib_2/async/future_or_strong_test.dart b/tests/lib_2/async/future_or_strong_test.dart
deleted file mode 100644
index b7a37a00a15..00000000000
--- a/tests/lib_2/async/future_or_strong_test.dart
+++ /dev/null
@@ -1,115 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// In strong mode, `FutureOr` should be equivalent to the union of `Future<T>`
-// and `T`.
-
-import 'dart:async';
-import 'package:expect/expect.dart';
-
-typedef void FunTakes<T>(T x);
-typedef T FunReturns<T>();
-
-main() {
-  Expect.isTrue(499 is FutureOr); // Same as `is Object`.
-  Expect.isTrue(499 is FutureOr<int>);
-  Expect.isFalse(499 is FutureOr<String>);
-
-  Expect.isTrue(new Future.value(499) is FutureOr); // Same as `is Object`.
-  Expect.isTrue(new Future.value(499) is FutureOr<int>);
-  Expect.isFalse(new Future.value(499) is FutureOr<String>);
-
-  void foo(FutureOr x) {} // Equivalent to `void bar(Object x) {}`.
-
-  // A function that takes Object takes everything.
-  Expect.isTrue(foo is FunTakes<dynamic>);
-  Expect.isTrue(foo is FunTakes<Object>);
-  Expect.isTrue(foo is FunTakes<int>);
-  Expect.isTrue(foo is FunTakes<String>);
-  Expect.isTrue(foo is FunTakes<Future<int>>);
-  Expect.isTrue(foo is FunTakes<Future<String>>);
-  Expect.isTrue(foo is FunTakes<FutureOr<Object>>);
-  Expect.isTrue(foo is FunTakes<FutureOr<int>>);
-  Expect.isTrue(foo is FunTakes<FutureOr<String>>);
-  Expect.isTrue(foo is FunTakes<FutureOr<FutureOr<Object>>>);
-  Expect.isTrue(foo is FunTakes<FutureOr<FutureOr<int>>>);
-  Expect.isTrue(foo is FunTakes<FutureOr<FutureOr<String>>>);
-
-  FutureOr bar() => 499; // Equivalent to `Object foo() => 499`.
-
-  Expect.isTrue(bar is FunReturns<dynamic>);
-  Expect.isTrue(bar is FunReturns<Object>);
-  Expect.isFalse(bar is FunReturns<int>);
-  Expect.isFalse(bar is FunReturns<String>);
-  Expect.isFalse(bar is FunReturns<Future<int>>);
-  Expect.isFalse(bar is FunReturns<Future<String>>);
-  Expect.isTrue(bar is FunReturns<FutureOr<Object>>);
-  Expect.isFalse(bar is FunReturns<FutureOr<int>>);
-  Expect.isFalse(bar is FunReturns<FutureOr<String>>);
-  Expect.isTrue(bar is FunReturns<FutureOr<FutureOr<Object>>>);
-  Expect.isFalse(bar is FunReturns<FutureOr<FutureOr<int>>>);
-  Expect.isFalse(bar is FunReturns<FutureOr<FutureOr<String>>>);
-
-  void foo2(FutureOr<String> x) {}
-
-  Expect.isFalse(foo2 is FunTakes<dynamic>);
-  Expect.isFalse(foo2 is FunTakes<Object>);
-  Expect.isFalse(foo2 is FunTakes<int>);
-  Expect.isTrue(foo2 is FunTakes<String>);
-  Expect.isFalse(foo2 is FunTakes<Future<int>>);
-  Expect.isTrue(foo2 is FunTakes<Future<String>>);
-  Expect.isFalse(foo2 is FunTakes<FutureOr<Object>>);
-  Expect.isFalse(foo2 is FunTakes<FutureOr<int>>);
-  Expect.isTrue(foo2 is FunTakes<FutureOr<String>>);
-  Expect.isFalse(foo2 is FunTakes<FutureOr<FutureOr<Object>>>);
-  Expect.isFalse(foo2 is FunTakes<FutureOr<FutureOr<int>>>);
-  Expect.isFalse(foo2 is FunTakes<FutureOr<FutureOr<String>>>);
-
-  FutureOr<int> bar2() => 499;
-
-  Expect.isTrue(bar2 is FunReturns<dynamic>);
-  Expect.isTrue(bar2 is FunReturns<Object>);
-  Expect.isFalse(bar2 is FunReturns<int>);
-  Expect.isFalse(bar2 is FunReturns<String>);
-  Expect.isFalse(bar2 is FunReturns<Future<int>>);
-  Expect.isFalse(bar2 is FunReturns<Future<String>>);
-  Expect.isTrue(bar2 is FunReturns<FutureOr<Object>>);
-  Expect.isTrue(bar2 is FunReturns<FutureOr<int>>);
-  Expect.isFalse(bar2 is FunReturns<FutureOr<String>>);
-  Expect.isTrue(bar2 is FunReturns<FutureOr<FutureOr<Object>>>);
-  Expect.isTrue(bar2 is FunReturns<FutureOr<FutureOr<int>>>);
-  Expect.isFalse(bar2 is FunReturns<FutureOr<FutureOr<String>>>);
-
-  void foo3(String x) {}
-
-  Expect.isFalse(foo3 is FunTakes<dynamic>);
-  Expect.isFalse(foo3 is FunTakes<Object>);
-  Expect.isFalse(foo3 is FunTakes<int>);
-  Expect.isTrue(foo3 is FunTakes<String>);
-  Expect.isFalse(foo3 is FunTakes<Future<int>>);
-  Expect.isFalse(foo3 is FunTakes<Future<String>>);
-  Expect.isFalse(foo3 is FunTakes<FutureOr<Object>>);
-  Expect.isFalse(foo3 is FunTakes<FutureOr<int>>);
-  Expect.isFalse(foo3 is FunTakes<FutureOr<String>>);
-  Expect.isFalse(foo3 is FunTakes<FutureOr<FutureOr<Object>>>);
-  Expect.isFalse(foo3 is FunTakes<FutureOr<FutureOr<int>>>);
-  Expect.isFalse(foo3 is FunTakes<FutureOr<FutureOr<String>>>);
-
-  int bar3() => 499;
-
-  Expect.isTrue(bar3 is FunReturns<dynamic>);
-  Expect.isTrue(bar3 is FunReturns<Object>);
-  Expect.isTrue(bar3 is FunReturns<int>);
-  Expect.isFalse(bar3 is FunReturns<String>);
-  Expect.isFalse(bar3 is FunReturns<Future<int>>);
-  Expect.isFalse(bar3 is FunReturns<Future<String>>);
-  Expect.isTrue(bar3 is FunReturns<FutureOr<Object>>);
-  Expect.isTrue(bar3 is FunReturns<FutureOr<int>>);
-  Expect.isFalse(bar3 is FunReturns<FutureOr<String>>);
-  Expect.isTrue(bar3 is FunReturns<FutureOr<FutureOr<Object>>>);
-  Expect.isTrue(bar3 is FunReturns<FutureOr<FutureOr<int>>>);
-  Expect.isFalse(bar3 is FunReturns<FutureOr<FutureOr<String>>>);
-}
diff --git a/tests/lib_2/async/future_or_type_test.dart b/tests/lib_2/async/future_or_type_test.dart
deleted file mode 100644
index c99f03f50c6..00000000000
--- a/tests/lib_2/async/future_or_type_test.dart
+++ /dev/null
@@ -1,256 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// In strong mode, `FutureOr` should be a valid type in most locations.
-
-import 'dart:async';
-import 'package:expect/expect.dart';
-
-typedef void FunTakes<T>(T x);
-typedef T FunReturns<T>();
-
-main() {
-  // Some useful values.
-  dynamic n = null;
-  dynamic i = 0;
-  dynamic d = 1.5;
-  dynamic fni = new Future<num>.value(i);
-  dynamic fnd = new Future<num>.value(d);
-  dynamic fi = new Future<int>.value(i);
-  dynamic fd = new Future<double>.value(d);
-  dynamic fn = new Future<Null>.value(null);
-
-  dynamic o = new Object();
-  dynamic fo = new Future<Object>.value(o);
-  dynamic foi = new Future<Object>.value(i);
-
-  if (typeAssertionsEnabled) {
-    // Type annotation allows correct values.
-    FutureOr<num> v;
-    v = n;
-    v = i;
-    v = d;
-    v = fni;
-    v = fnd;
-    v = fi;
-    v = fd;
-    v = fn;
-    // Disallows invalid values.
-    // These are all valid down-casts that fail at runtime.
-    Expect.throws(() => v = o);
-    Expect.throws(() => v = fo);
-    Expect.throws(() => v = foi);
-
-    void fun(FutureOr<num> v) {}
-    fun(n);
-    fun(i);
-    fun(d);
-    fun(fni);
-    fun(fnd);
-    fun(fi);
-    fun(fd);
-    fun(fn);
-    // Disallows invalid values.
-    // These are all valid down-casts that fail at runtime.
-    Expect.throws(() => fun(o));
-    Expect.throws(() => fun(fo));
-    Expect.throws(() => fun(foi));
-
-    FutureOr<num> fun2(Object o) => o; // implicit down-cast to return type.
-    fun2(n);
-    fun2(i);
-    fun2(d);
-    fun2(fni);
-    fun2(fnd);
-    fun2(fi);
-    fun2(fd);
-    fun2(fn);
-    // Disallows invalid values.
-    Expect.throws(() => fun2(o));
-    Expect.throws(() => fun2(fo));
-    Expect.throws(() => fun2(foi));
-
-    List<Object> list = <FutureOr<num>>[];
-    list.add(n);
-    list.add(i);
-    list.add(d);
-    list.add(fni);
-    list.add(fnd);
-    list.add(fi);
-    list.add(fd);
-    list.add(fn);
-    Expect.throws(() => list.add(o));
-    Expect.throws(() => list.add(fo));
-    Expect.throws(() => list.add(foi));
-  }
-
-  {
-    // Casts.
-    FutureOr<num> v;
-    v = n as FutureOr<num>;
-    v = i as FutureOr<num>;
-    v = d as FutureOr<num>;
-    v = fni as FutureOr<num>;
-    v = fnd as FutureOr<num>;
-    v = fi as FutureOr<num>;
-    v = fd as FutureOr<num>;
-    v = fn as FutureOr<num>;
-    // Disallows invalid values.
-    // These are all valid down-casts that fail at runtime.
-    Expect.throws(() => v = o as FutureOr<num>);
-    Expect.throws(() => v = fo as FutureOr<num>);
-    Expect.throws(() => v = foi as FutureOr<num>);
-  }
-
-  {
-    // on-catch
-    String check(Object o) {
-      try {
-        throw o;
-      } on FutureOr<num> {
-        return "caught";
-      } on Object {
-        return "uncaught";
-      }
-    }
-
-    // Can't throw null, so no `n` case here.
-    Expect.equals("caught", check(i));
-    Expect.equals("caught", check(d));
-    Expect.equals("caught", check(fni));
-    Expect.equals("caught", check(fnd));
-    Expect.equals("caught", check(fi));
-    Expect.equals("caught", check(fd));
-    Expect.equals("caught", check(fn));
-
-    Expect.equals("uncaught", check(o));
-    Expect.equals("uncaught", check(fo));
-    Expect.equals("uncaught", check(foi));
-  }
-
-  {
-    // Type variable bound.
-    var valids = <C<FutureOr<num>>>[
-      new C<Null>(),
-      new C<int>(),
-      new C<double>(),
-      new C<num>(),
-      new C<Future<Null>>(),
-      new C<Future<int>>(),
-      new C<Future<double>>(),
-      new C<Future<num>>(),
-      new C<FutureOr<Null>>(),
-      new C<FutureOr<int>>(),
-      new C<FutureOr<double>>(),
-      new C<FutureOr<num>>(),
-    ];
-    Expect.equals(12, valids.length);
-  }
-
-  {
-    // Dynamic checks.
-    Expect.isFalse(new C<FutureOr<num>>().isCheck(n));
-    Expect.isTrue(new C<FutureOr<num>>().isCheck(i));
-    Expect.isTrue(new C<FutureOr<num>>().isCheck(d));
-    Expect.isTrue(new C<FutureOr<num>>().isCheck(fni));
-    Expect.isTrue(new C<FutureOr<num>>().isCheck(fnd));
-    Expect.isTrue(new C<FutureOr<num>>().isCheck(fi));
-    Expect.isTrue(new C<FutureOr<num>>().isCheck(fd));
-    Expect.isTrue(new C<FutureOr<num>>().isCheck(fn));
-    Expect.isFalse(new C<FutureOr<num>>().isCheck(o));
-    Expect.isFalse(new C<FutureOr<num>>().isCheck(fo));
-    Expect.isFalse(new C<FutureOr<num>>().isCheck(foi));
-
-    Expect.isFalse(new C<FutureOr<int>>().isCheck(n));
-    Expect.isTrue(new C<FutureOr<int>>().isCheck(i));
-    Expect.isFalse(new C<FutureOr<int>>().isCheck(d));
-    Expect.isFalse(new C<FutureOr<int>>().isCheck(fni));
-    Expect.isFalse(new C<FutureOr<int>>().isCheck(fnd));
-    Expect.isTrue(new C<FutureOr<int>>().isCheck(fi));
-    Expect.isFalse(new C<FutureOr<int>>().isCheck(fd));
-    Expect.isTrue(new C<FutureOr<int>>().isCheck(fn));
-    Expect.isFalse(new C<FutureOr<int>>().isCheck(o));
-    Expect.isFalse(new C<FutureOr<int>>().isCheck(fo));
-    Expect.isFalse(new C<FutureOr<int>>().isCheck(foi));
-
-    Expect.isTrue(new C<FutureOr<Null>>().isCheck(n));
-    Expect.isFalse(new C<FutureOr<Null>>().isCheck(i));
-    Expect.isFalse(new C<FutureOr<Null>>().isCheck(d));
-    Expect.isFalse(new C<FutureOr<Null>>().isCheck(fni));
-    Expect.isFalse(new C<FutureOr<Null>>().isCheck(fnd));
-    Expect.isFalse(new C<FutureOr<Null>>().isCheck(fi));
-    Expect.isFalse(new C<FutureOr<Null>>().isCheck(fd));
-    Expect.isTrue(new C<FutureOr<Null>>().isCheck(fn));
-    Expect.isFalse(new C<FutureOr<Null>>().isCheck(o));
-    Expect.isFalse(new C<FutureOr<Null>>().isCheck(fo));
-    Expect.isFalse(new C<FutureOr<Null>>().isCheck(foi));
-
-    Expect.isFalse(new C<Future<num>>().isCheck(n));
-    Expect.isFalse(new C<Future<num>>().isCheck(i));
-    Expect.isFalse(new C<Future<num>>().isCheck(d));
-    Expect.isTrue(new C<Future<num>>().isCheck(fni));
-    Expect.isTrue(new C<Future<num>>().isCheck(fnd));
-    Expect.isTrue(new C<Future<num>>().isCheck(fi));
-    Expect.isTrue(new C<Future<num>>().isCheck(fd));
-    Expect.isTrue(new C<Future<num>>().isCheck(fn));
-    Expect.isFalse(new C<Future<num>>().isCheck(o));
-    Expect.isFalse(new C<Future<num>>().isCheck(fo));
-    Expect.isFalse(new C<Future<num>>().isCheck(foi));
-
-    Expect.isFalse(new C<Future<int>>().isCheck(n));
-    Expect.isFalse(new C<Future<int>>().isCheck(i));
-    Expect.isFalse(new C<Future<int>>().isCheck(d));
-    Expect.isFalse(new C<Future<int>>().isCheck(fni));
-    Expect.isFalse(new C<Future<int>>().isCheck(fnd));
-    Expect.isTrue(new C<Future<int>>().isCheck(fi));
-    Expect.isFalse(new C<Future<int>>().isCheck(fd));
-    Expect.isTrue(new C<Future<int>>().isCheck(fn));
-    Expect.isFalse(new C<Future<int>>().isCheck(o));
-    Expect.isFalse(new C<Future<int>>().isCheck(fo));
-    Expect.isFalse(new C<Future<int>>().isCheck(foi));
-
-    Expect.isFalse(new C<num>().isCheck(n));
-    Expect.isTrue(new C<num>().isCheck(i));
-    Expect.isTrue(new C<num>().isCheck(d));
-    Expect.isFalse(new C<num>().isCheck(fni));
-    Expect.isFalse(new C<num>().isCheck(fnd));
-    Expect.isFalse(new C<num>().isCheck(fi));
-    Expect.isFalse(new C<num>().isCheck(fd));
-    Expect.isFalse(new C<num>().isCheck(fn));
-    Expect.isFalse(new C<num>().isCheck(o));
-    Expect.isFalse(new C<num>().isCheck(fo));
-    Expect.isFalse(new C<num>().isCheck(foi));
-
-    Expect.isFalse(new C<int>().isCheck(n));
-    Expect.isTrue(new C<int>().isCheck(i));
-    Expect.isFalse(new C<int>().isCheck(d));
-    Expect.isFalse(new C<int>().isCheck(fni));
-    Expect.isFalse(new C<int>().isCheck(fnd));
-    Expect.isFalse(new C<int>().isCheck(fi));
-    Expect.isFalse(new C<int>().isCheck(fd));
-    Expect.isFalse(new C<int>().isCheck(fn));
-    Expect.isFalse(new C<int>().isCheck(o));
-    Expect.isFalse(new C<int>().isCheck(fo));
-    Expect.isFalse(new C<int>().isCheck(foi));
-
-    Expect.isTrue(new C<Null>().isCheck(n));
-    Expect.isFalse(new C<Null>().isCheck(i));
-    Expect.isFalse(new C<Null>().isCheck(d));
-    Expect.isFalse(new C<Null>().isCheck(fni));
-    Expect.isFalse(new C<Null>().isCheck(fnd));
-    Expect.isFalse(new C<Null>().isCheck(fi));
-    Expect.isFalse(new C<Null>().isCheck(fd));
-    Expect.isFalse(new C<Null>().isCheck(fn));
-    Expect.isFalse(new C<Null>().isCheck(o));
-    Expect.isFalse(new C<Null>().isCheck(fo));
-    Expect.isFalse(new C<Null>().isCheck(foi));
-  }
-}
-
-// FutureOr used as type parameter bound.
-class C<T extends FutureOr<num>> {
-  bool isCheck(Object o) => o is T;
-}
diff --git a/tests/lib_2/async/future_regression_48493_test.dart b/tests/lib_2/async/future_regression_48493_test.dart
deleted file mode 100644
index e167bf369bc..00000000000
--- a/tests/lib_2/async/future_regression_48493_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for http://dartbug.com/48493
-//
-// The `Completer.complete` method, given an already completed `_Future`
-// with a value result, will complete the `Completer.future` synchronously.
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-
-void main() async {
-  asyncStart();
-
-  var completer = Completer<int>(); // Not synchronous.
-  var future = Future<int>.value(4);
-  await future; // Ensure future completed.
-  bool thenRun = false;
-  completer.future.then((_) {
-    thenRun = true;
-  });
-  Expect.isFalse(thenRun, "Sanity check");
-  completer.complete(future);
-  Expect.isFalse(thenRun, "Ran early"); // Bug would cause this to fail.
-  await Future(() {}); // Await timer, all microtasks completed.
-  Expect.isTrue(thenRun, "Did not run as microtask");
-
-  asyncEnd();
-}
diff --git a/tests/lib_2/async/future_test.dart b/tests/lib_2/async/future_test.dart
deleted file mode 100644
index fa5c339585c..00000000000
--- a/tests/lib_2/async/future_test.dart
+++ /dev/null
@@ -1,1287 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library future_test;
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-
-const Duration MS = const Duration(milliseconds: 1);
-
-void testValue() {
-  final future = new Future<String>.value("42");
-  asyncStart();
-  future.then((x) {
-    Expect.equals("42", x);
-    asyncEnd();
-  });
-}
-
-void testSync() {
-  compare(func) {
-    // Compare the results of the following two futures.
-    Future f1 = new Future.sync(func);
-    Future f2 = new Future.value().then((_) => func());
-    f2.catchError((_) {}); // I'll get the error later.
-    f1.then((v1) {
-      f2.then((v2) {
-        Expect.equals(v1, v2);
-      });
-    }, onError: (e1) {
-      f2.then((_) {
-        Expect.fail("Expected error");
-      }, onError: (e2) {
-        Expect.equals(e1, e2);
-      });
-    });
-  }
-
-  Future val = new Future.value(42);
-  Future err1 = new Future.error("Error")..catchError((_) {});
-  try {
-    throw new List.filled(0, null);
-  } catch (e, st) {
-    Future err2 = new Future.error(e, st)..catchError((_) {});
-  }
-  compare(() => 42);
-  compare(() => val);
-  compare(() {
-    throw "Flif";
-  });
-  compare(() => err1);
-  bool hasExecuted = false;
-  compare(() {
-    hasExecuted = true;
-    return 499;
-  });
-  Expect.isTrue(hasExecuted);
-}
-
-void testNeverComplete() {
-  final completer = new Completer<int>();
-  final future = completer.future;
-  future.then((v) => Expect.fail("Value not expected"));
-  future.catchError((e) => Expect.fail("Value not expected"));
-}
-
-void testComplete() {
-  final completer = new Completer<int>();
-  final future = completer.future;
-  Expect.isFalse(completer.isCompleted);
-
-  completer.complete(3);
-  Expect.isTrue(completer.isCompleted);
-
-  future.then((v) => Expect.equals(3, v));
-}
-
-// Tests for [then]
-
-void testCompleteWithSuccessHandlerBeforeComplete() {
-  final completer = new Completer<int>();
-  final future = completer.future;
-
-  int after;
-
-  asyncStart();
-  future.then((int v) {
-    after = v;
-  }).then((_) {
-    Expect.equals(3, after);
-    asyncEnd();
-  });
-
-  completer.complete(3);
-  Expect.isNull(after);
-}
-
-void testCompleteWithSuccessHandlerAfterComplete() {
-  final completer = new Completer<int>();
-  final future = completer.future;
-
-  int after;
-  completer.complete(3);
-  Expect.isNull(after);
-
-  asyncStart();
-  future.then((int v) {
-    after = v;
-  }).then((_) {
-    Expect.equals(3, after);
-    asyncEnd();
-  });
-}
-
-void testCompleteManySuccessHandlers() {
-  final completer = new Completer<int>();
-  final future = completer.future;
-  int before;
-  int after1;
-  int after2;
-
-  var futures = <Future<int>>[];
-  futures.add(future.then((int v) {
-    before = v;
-  }));
-  completer.complete(3);
-  futures.add(future.then((int v) {
-    after1 = v;
-  }));
-  futures.add(future.then((int v) {
-    after2 = v;
-  }));
-
-  asyncStart();
-  Future.wait(futures).then((_) {
-    Expect.equals(3, before);
-    Expect.equals(3, after1);
-    Expect.equals(3, after2);
-    asyncEnd();
-  });
-
-  // Regression test for fix to issue:
-  // https://github.com/dart-lang/sdk/issues/43445
-  asyncStart();
-  Future.wait<int>(<Future<int>>[]).then((list) {
-    Expect.equals(0, list.length);
-    Expect.type<List<int>>(list);
-    Expect.notType<List<Null>>(list);
-    Expect.notType<List<Never>>(list);
-    asyncEnd();
-  });
-}
-
-// Tests for [catchError]
-
-void testException() {
-  final completer = new Completer<int>();
-  final future = completer.future;
-  final ex = new Exception();
-
-  asyncStart();
-  future.then((v) {
-    throw "Value not expected";
-  }).catchError((error) {
-    Expect.equals(error, ex);
-    asyncEnd();
-  }, test: (e) => e == ex);
-  completer.completeError(ex);
-}
-
-void testExceptionHandler() {
-  final completer = new Completer<int>();
-  final future = completer.future;
-  final ex = new Exception();
-
-  var ex2;
-  var done = future.catchError((error) {
-    ex2 = error;
-  });
-
-  Expect.isFalse(completer.isCompleted);
-  completer.completeError(ex);
-  Expect.isTrue(completer.isCompleted);
-
-  asyncStart();
-  done.then((_) {
-    Expect.equals(ex, ex2);
-    asyncEnd();
-  });
-}
-
-void testExceptionHandlerReturnsTrue() {
-  final completer = new Completer<int>();
-  final future = completer.future;
-  final ex = new Exception();
-
-  bool reached = false;
-  future.catchError((e) {});
-  future.catchError((e) {
-    reached = true;
-  }, test: (e) => false).catchError((e) {});
-  Expect.isFalse(completer.isCompleted);
-  completer.completeError(ex);
-  Expect.isTrue(completer.isCompleted);
-  Expect.isFalse(reached);
-}
-
-void testExceptionHandlerReturnsTrue2() {
-  final completer = new Completer<int>();
-  final future = completer.future;
-  final ex = new Exception();
-
-  bool reached = false;
-  var done = future.catchError((e) {}, test: (e) => false).catchError((e) {
-    reached = true;
-  });
-  completer.completeError(ex);
-
-  asyncStart();
-  done.then((_) {
-    Expect.isTrue(reached);
-    asyncEnd();
-  });
-}
-
-void testExceptionHandlerReturnsFalse() {
-  final completer = new Completer<int>();
-  final future = completer.future;
-  final ex = new Exception();
-
-  bool reached = false;
-
-  future.catchError((e) {});
-
-  future.catchError((e) {
-    reached = true;
-  }, test: (e) => false).catchError((e) {});
-
-  completer.completeError(ex);
-
-  Expect.isFalse(reached);
-}
-
-void testFutureAsStreamCompleteAfter() {
-  var completer = new Completer();
-  bool gotValue = false;
-  asyncStart();
-  completer.future.asStream().listen((data) {
-    Expect.isFalse(gotValue);
-    gotValue = true;
-    Expect.equals("value", data);
-  }, onDone: () {
-    Expect.isTrue(gotValue);
-    asyncEnd();
-  });
-  completer.complete("value");
-}
-
-void testFutureAsStreamCompleteBefore() {
-  var completer = new Completer();
-  bool gotValue = false;
-  asyncStart();
-  completer.complete("value");
-  completer.future.asStream().listen((data) {
-    Expect.isFalse(gotValue);
-    gotValue = true;
-    Expect.equals("value", data);
-  }, onDone: () {
-    Expect.isTrue(gotValue);
-    asyncEnd();
-  });
-}
-
-void testFutureAsStreamCompleteImmediate() {
-  bool gotValue = false;
-  asyncStart();
-  new Future.value("value").asStream().listen((data) {
-    Expect.isFalse(gotValue);
-    gotValue = true;
-    Expect.equals("value", data);
-  }, onDone: () {
-    Expect.isTrue(gotValue);
-    asyncEnd();
-  });
-}
-
-void testFutureAsStreamCompleteErrorAfter() {
-  var completer = new Completer();
-  bool gotError = false;
-  asyncStart();
-  completer.future.asStream().listen((data) {
-    Expect.fail("Unexpected data");
-  }, onError: (error) {
-    Expect.isFalse(gotError);
-    gotError = true;
-    Expect.equals("error", error);
-  }, onDone: () {
-    Expect.isTrue(gotError);
-    asyncEnd();
-  });
-  completer.completeError("error");
-}
-
-void testFutureAsStreamWrapper() {
-  var completer = new Completer();
-  bool gotValue = false;
-  asyncStart();
-  completer.complete("value");
-  completer.future
-      .catchError((_) {
-        throw "not possible";
-      }) // Returns a future wrapper.
-      .asStream()
-      .listen((data) {
-        Expect.isFalse(gotValue);
-        gotValue = true;
-        Expect.equals("value", data);
-      }, onDone: () {
-        Expect.isTrue(gotValue);
-        asyncEnd();
-      });
-}
-
-void testFutureWhenCompleteValue() {
-  asyncStart();
-  int counter = 2;
-  countDown() {
-    if (--counter == 0) asyncEnd();
-  }
-
-  var completer = new Completer();
-  Future future = completer.future;
-  Future later = future.whenComplete(countDown);
-  later.then((v) {
-    Expect.equals(42, v);
-    countDown();
-  });
-  completer.complete(42);
-}
-
-void testFutureWhenCompleteError() {
-  asyncStart();
-  int counter = 2;
-  countDown() {
-    if (--counter == 0) asyncEnd();
-  }
-
-  var completer = new Completer();
-  Future future = completer.future;
-  Future later = future.whenComplete(countDown);
-  later.catchError((error) {
-    Expect.equals("error", error);
-    countDown();
-  });
-  completer.completeError("error");
-}
-
-void testFutureWhenCompleteValueNewError() {
-  asyncStart();
-  int counter = 2;
-  countDown() {
-    if (--counter == 0) asyncEnd();
-  }
-
-  var completer = new Completer();
-  Future future = completer.future;
-  Future later = future.whenComplete(() {
-    countDown();
-    throw "new error";
-  });
-  later.catchError((error) {
-    Expect.equals("new error", error);
-    countDown();
-  });
-  completer.complete(42);
-}
-
-void testFutureWhenCompleteErrorNewError() {
-  asyncStart();
-  int counter = 2;
-  countDown() {
-    if (--counter == 0) asyncEnd();
-  }
-
-  var completer = new Completer();
-  Future future = completer.future;
-  Future later = future.whenComplete(() {
-    countDown();
-    throw "new error";
-  });
-  later.catchError((error) {
-    Expect.equals("new error", error);
-    countDown();
-  });
-  completer.completeError("error");
-}
-
-void testFutureWhenCompletePreValue() {
-  asyncStart();
-  int counter = 2;
-  countDown() {
-    if (--counter == 0) asyncEnd();
-  }
-
-  var completer = new Completer();
-  Future future = completer.future;
-  completer.complete(42);
-  Timer.run(() {
-    Future later = future.whenComplete(countDown);
-    later.then((v) {
-      Expect.equals(42, v);
-      countDown();
-    });
-  });
-}
-
-void testFutureWhenValueFutureValue() {
-  asyncStart();
-  int counter = 3;
-  countDown(int expect) {
-    Expect.equals(expect, counter);
-    if (--counter == 0) asyncEnd();
-  }
-
-  var completer = new Completer();
-  completer.future.whenComplete(() {
-    countDown(3);
-    var completer2 = new Completer();
-    new Timer(MS * 10, () {
-      countDown(2);
-      completer2.complete(37);
-    });
-    return completer2.future;
-  }).then((v) {
-    Expect.equals(42, v);
-    countDown(1);
-  });
-
-  completer.complete(42);
-}
-
-void testFutureWhenValueFutureError() {
-  asyncStart();
-  int counter = 3;
-  countDown(int expect) {
-    Expect.equals(expect, counter);
-    if (--counter == 0) asyncEnd();
-  }
-
-  var completer = new Completer();
-  completer.future.whenComplete(() {
-    countDown(3);
-    var completer2 = new Completer();
-    new Timer(MS * 10, () {
-      countDown(2);
-      completer2.completeError("Fail");
-    });
-    return completer2.future;
-  }).then((v) {
-    Expect.fail("should fail async");
-  }, onError: (error) {
-    Expect.equals("Fail", error);
-    countDown(1);
-  });
-
-  completer.complete(42);
-}
-
-void testFutureWhenErrorFutureValue() {
-  asyncStart();
-  int counter = 3;
-  countDown(int expect) {
-    Expect.equals(expect, counter);
-    if (--counter == 0) asyncEnd();
-  }
-
-  var completer = new Completer();
-  completer.future.whenComplete(() {
-    countDown(3);
-    var completer2 = new Completer();
-    new Timer(MS * 10, () {
-      countDown(2);
-      completer2.complete(37);
-    });
-    return completer2.future;
-  }).then((v) {
-    Expect.fail("should fail async");
-  }, onError: (error) {
-    Expect.equals("Error", error);
-    countDown(1);
-  });
-
-  completer.completeError("Error");
-}
-
-void testFutureWhenErrorFutureError() {
-  asyncStart();
-  int counter = 3;
-  countDown(int expect) {
-    Expect.equals(expect, counter);
-    if (--counter == 0) asyncEnd();
-  }
-
-  var completer = new Completer();
-  completer.future.whenComplete(() {
-    countDown(3);
-    var completer2 = new Completer();
-    new Timer(MS * 10, () {
-      countDown(2);
-      completer2.completeError("Fail");
-    });
-    return completer2.future;
-  }).then((v) {
-    Expect.fail("should fail async");
-  }, onError: (error) {
-    Expect.equals("Fail", error);
-    countDown(1);
-  });
-
-  completer.completeError("Error");
-}
-
-void testFutureThenThrowsAsync() {
-  final completer = new Completer<int>();
-  final future = completer.future;
-  int error = 42;
-
-  asyncStart();
-  future.then((v) {
-    throw error;
-  }).catchError((e) {
-    Expect.identical(error, e);
-    asyncEnd();
-  });
-  completer.complete(0);
-}
-
-void testFutureCatchThrowsAsync() {
-  final completer = new Completer<int>();
-  final future = completer.future;
-  int error = 42;
-
-  asyncStart();
-  future.catchError((e) {
-    throw error;
-  }).catchError((e) {
-    Expect.identical(error, e);
-    asyncEnd();
-  });
-  completer.completeError(0);
-}
-
-void testFutureCatchRethrowsAsync() {
-  final completer = new Completer<int>();
-  final future = completer.future;
-  var error;
-
-  asyncStart();
-  future.catchError((e) {
-    error = e;
-    throw e;
-  }).catchError((e) {
-    Expect.identical(error, e);
-    asyncEnd();
-  });
-  completer.completeError(0);
-}
-
-void testFutureWhenThrowsAsync() {
-  final completer = new Completer<int>();
-  final future = completer.future;
-  var error = 42;
-
-  asyncStart();
-  future.whenComplete(() {
-    throw error;
-  }).catchError((e) {
-    Expect.identical(error, e);
-    asyncEnd();
-  });
-  completer.complete(0);
-}
-
-void testCompleteWithError() {
-  final completer = new Completer<int>();
-  final future = completer.future;
-  var error = 42;
-
-  asyncStart();
-  future.catchError((e) {
-    Expect.identical(error, e);
-    asyncEnd();
-  });
-
-  completer.completeError(error);
-}
-
-void testCompleteWithFutureSuccess() {
-  asyncStart();
-  final completer = new Completer<int>();
-  final completer2 = new Completer<int>();
-  completer.complete(completer2.future);
-  completer.future.then((v) {
-    Expect.equals(42, v);
-    asyncEnd();
-  });
-  completer2.complete(42);
-}
-
-void testCompleteWithFutureSuccess2() {
-  asyncStart();
-  final completer = new Completer<int>();
-  final result = new Future<int>.value(42);
-  completer.complete(result);
-  completer.future.then((v) {
-    Expect.equals(42, v);
-    asyncEnd();
-  });
-}
-
-void testCompleteWithFutureError() {
-  asyncStart();
-  final completer = new Completer<int>();
-  final completer2 = new Completer<int>();
-  completer.complete(completer2.future);
-  completer.future.then((v) {
-    Expect.fail("Should not happen");
-    asyncEnd();
-  }, onError: (e) {
-    Expect.equals("ERROR-tcwfe", e);
-    asyncEnd();
-  });
-  completer2.completeError("ERROR-tcwfe");
-}
-
-void testCompleteWithFutureError2() {
-  asyncStart();
-  final completer = new Completer<int>();
-  var result = new Future<int>.error("ERROR-tcwfe2");
-  completer.complete(result);
-  completer.future.then((v) {
-    Expect.fail("Should not happen");
-    asyncEnd();
-  }, onError: (e) {
-    Expect.equals("ERROR-tcwfe2", e);
-    asyncEnd();
-  });
-}
-
-void testCompleteErrorWithFuture() {
-  asyncStart();
-  final completer = new Completer<int>();
-  completer.completeError(new Future.value(42));
-  completer.future.then((_) {
-    Expect.fail("Shouldn't happen");
-  }, onError: (e, s) {
-    Future f = e;
-    f.then((v) {
-      Expect.equals(42, v);
-      asyncEnd();
-    });
-  });
-}
-
-void testCompleteWithCustomFutureSuccess() {
-  asyncStart();
-  final completer = new Completer<int>();
-  final completer2 = new Completer<int>();
-  completer.complete(new CustomFuture(completer2.future));
-  completer.future.then((v) {
-    Expect.equals(42, v);
-    asyncEnd();
-  });
-  completer2.complete(42);
-}
-
-void testCompleteWithCustomFutureError() {
-  asyncStart();
-  final completer = new Completer<int>();
-  final completer2 = new Completer<int>();
-  completer.complete(new CustomFuture(completer2.future));
-  completer.future.then((v) {
-    Expect.fail("Should not happen");
-    asyncEnd();
-  }, onError: (e) {
-    Expect.equals("ERROR-tcwcfe", e);
-    asyncEnd();
-  });
-  completer2.completeError("ERROR-tcwcfe");
-}
-
-void testCompleteErrorWithCustomFuture() {
-  asyncStart();
-  final completer = new Completer<int>();
-  var future = new CustomFuture(new Future.value(42));
-  completer.completeError(future);
-  completer.future.then((_) {
-    Expect.fail("Shouldn't happen");
-  }, onError: (e) {
-    Future f = e;
-    f.then((v) {
-      Expect.equals(42, v);
-      asyncEnd();
-    });
-  });
-}
-
-void testCompleteErrorWithNull() {
-  final completer = new Completer<int>();
-  Expect.throwsTypeError(() {
-    completer.completeError(null);
-  });
-}
-
-void testChainedFutureValue() {
-  final completer = new Completer();
-  final future = completer.future;
-  asyncStart();
-
-  future.then((v) => new Future.value(v * 2)).then((v) {
-    Expect.equals(42, v);
-    asyncEnd();
-  });
-  completer.complete(21);
-}
-
-void testChainedFutureValueDelay() {
-  final completer = new Completer();
-  final future = completer.future;
-  asyncStart();
-
-  future
-      .then((v) =>
-          new Future.delayed(const Duration(milliseconds: 10), () => v * 2))
-      .then((v) {
-    Expect.equals(42, v);
-    asyncEnd();
-  });
-  completer.complete(21);
-}
-
-void testChainedFutureValue2Delay() {
-  asyncStart();
-
-  new Future.delayed(const Duration(milliseconds: 10)).then((v) {
-    Expect.isNull(v);
-    asyncEnd();
-  });
-}
-
-void testChainedFutureError() {
-  final completer = new Completer();
-  final future = completer.future;
-  asyncStart();
-
-  future.then((v) => new Future.error("Fehler")).then((v) {
-    Expect.fail("unreachable!");
-  }, onError: (error) {
-    Expect.equals("Fehler", error);
-    asyncEnd();
-  });
-  completer.complete(21);
-}
-
-void testSyncFuture_i13368() {
-  asyncStart();
-
-  final future = new Future<int>.sync(() {
-    return new Future<int>.value(42);
-  });
-
-  future.then((int val) {
-    Expect.equals(val, 42);
-    asyncEnd();
-  });
-}
-
-void testWaitCleanUp() {
-  asyncStart();
-  // Creates three futures with different completion times, and where some fail.
-  // The `mask` specifies which futures fail (values 1-7),
-  // and `permute` defines the order of completion. values 0-5.
-  void doTest(int mask, int permute) {
-    asyncStart();
-    String stringId = "waitCleanup-$mask-$permute";
-    List<Future> futures = new List.filled(3, null);
-    List cleanup = new List.filled(3, null);
-    int permuteTmp = permute;
-    for (int i = 0; i < 3; i++) {
-      bool throws = (mask & (1 << i)) != 0;
-      var future = new Future.delayed(new Duration(milliseconds: 100 * (i + 1)),
-          () => (throws ? throw "Error $i($mask-$permute)" : i));
-      int mod = 3 - i;
-      int position = permuteTmp % mod;
-      permuteTmp = permuteTmp ~/ mod;
-      while (futures[position] != null) position++;
-      futures[position] = future;
-      cleanup[i] = throws;
-    }
-    void cleanUp(index) {
-      Expect.isFalse(cleanup[index]);
-      cleanup[index] = true;
-    }
-
-    Future.wait(futures, cleanUp: cleanUp).then((_) {
-      Expect.fail("No error: $stringId");
-    }, onError: (e, s) {
-      Expect.listEquals([true, true, true], cleanup);
-      asyncEnd();
-    });
-  }
-
-  for (int i = 1; i < 8; i++) {
-    for (int j = 0; j < 6; j++) {
-      doTest(i, j);
-    }
-  }
-  asyncEnd();
-}
-
-void testWaitCleanUpEager() {
-  asyncStart();
-  // Creates three futures with different completion times, and where some fail.
-  // The `mask` specifies which futures fail (values 1-7),
-  // and `permute` defines the order of completion. values 0-5.
-  void doTest(int mask, int permute) {
-    asyncStart();
-    asyncStart();
-    bool done = false;
-    String stringId = "waitCleanup-$mask-$permute";
-    List<Future> futures = new List<Future>.filled(3, null);
-    List cleanup = new List.filled(3, null);
-    int permuteTmp = permute;
-    for (int i = 0; i < 3; i++) {
-      bool throws = (mask & (1 << i)) != 0;
-      var future = new Future.delayed(new Duration(milliseconds: 100 * (i + 1)),
-          () => (throws ? throw "Error $i($mask-$permute)" : i));
-      int mod = 3 - i;
-      int position = permuteTmp % mod;
-      permuteTmp = permuteTmp ~/ mod;
-      while (futures[position] != null) position++;
-      futures[position] = future;
-      cleanup[i] = throws;
-    }
-    void checkDone() {
-      if (done) return;
-      if (cleanup.every((v) => v)) {
-        done = true;
-        asyncEnd();
-      }
-    }
-
-    void cleanUp(index) {
-      Expect.isFalse(cleanup[index]);
-      cleanup[index] = true;
-      // Cleanup might happen before and after the wait().then() callback.
-      checkDone();
-    }
-
-    Future.wait(futures, eagerError: true, cleanUp: cleanUp).then((_) {
-      Expect.fail("No error: $stringId");
-    }, onError: (e, s) {
-      asyncEnd();
-      checkDone();
-    });
-  }
-
-  for (int i = 1; i < 8; i++) {
-    for (int j = 0; j < 6; j++) {
-      doTest(i, j);
-    }
-  }
-  asyncEnd();
-}
-
-void testWaitCleanUpError() {
-  var cms = const Duration(milliseconds: 100);
-  var cleanups = new List.filled(3, false);
-  var uncaughts = new List.filled(3, false);
-  asyncStart();
-  asyncStart();
-  asyncStart();
-  runZoned(() {
-    Future.wait([
-      new Future.delayed(cms, () => 0),
-      new Future.delayed(cms * 2, () => throw 1),
-      new Future.delayed(cms * 3, () => 2)
-    ], cleanUp: (index) {
-      Expect.isTrue(index == 0 || index == 2, "$index");
-      Expect.isFalse(cleanups[index]);
-      cleanups[index] = true;
-      throw index;
-    }).catchError((e) {
-      Expect.equals(e, 1);
-      asyncEnd();
-    });
-  }, onError: (e, s) {
-    int index = e;
-    Expect.isTrue(index == 0 || index == 2, "$index");
-    Expect.isFalse(uncaughts[index]);
-    uncaughts[index] = true;
-    asyncEnd();
-  });
-}
-
-void testWaitSyncError() {
-  var cms = const Duration(milliseconds: 100);
-  var cleanups = new List.filled(3, false);
-  asyncStart();
-  asyncStart();
-  runZoned(() {
-    Future.wait(
-        new Iterable.generate(5, (i) {
-          if (i != 3) return new Future.delayed(cms * (i + 1), () => i);
-          throw "throwing synchronously in iterable";
-        }), cleanUp: (index) {
-      Expect.isFalse(cleanups[index]);
-      cleanups[index] = true;
-      if (cleanups.every((x) => x)) asyncEnd();
-    });
-  }, onError: (e, s) {
-    asyncEnd();
-  });
-}
-
-void testWaitSyncError2() {
-  asyncStart();
-  Future.wait([null]).catchError((e, st) {
-    // Makes sure that the `catchError` is invoked.
-    // Regression test: an earlier version of `Future.wait` would propagate
-    // the error too soon for the code to install an error handler.
-    // `testWaitSyncError` didn't show this problem, because the `runZoned`
-    // was already installed.
-    asyncEnd();
-  });
-}
-
-// Future.wait transforms synchronous errors into asynchronous ones.
-// This function tests that zones can intercept them.
-void testWaitSyncError3() {
-  var caughtError;
-  var count = 0;
-
-  AsyncError errorCallback(Zone self, ZoneDelegate parent, Zone zone,
-      Object error, StackTrace stackTrace) {
-    Expect.equals(0, count);
-    count++;
-    caughtError = error;
-    return parent.errorCallback(zone, error, stackTrace);
-  }
-
-  asyncStart();
-  runZoned(() {
-    Future.wait([null]).catchError((e, st) {
-      Expect.identical(e, caughtError);
-      Expect.equals(1, count);
-      asyncEnd();
-    });
-  }, zoneSpecification: new ZoneSpecification(errorCallback: errorCallback));
-}
-
-void testBadFuture() {
-  var bad = new BadFuture();
-  // Completing with bad future (then call throws) puts error in result.
-  asyncStart();
-  Completer completer = new Completer();
-  completer.complete(bad);
-  completer.future.then((_) {
-    Expect.fail("unreachable");
-  }, onError: (e, s) {
-    Expect.isTrue(completer.isCompleted);
-    asyncEnd();
-  });
-
-  asyncStart();
-  var f = new Future.value().then((_) => bad);
-  f.then((_) {
-    Expect.fail("unreachable");
-  }, onError: (e, s) {
-    asyncEnd();
-  });
-}
-
-void testTypes() {
-  // Test that future is a Future<int> and not something less precise.
-  testType(name, future, [depth = 2]) {
-    var desc = "$name${".whenComplete" * (2 - depth)}";
-    Expect.isTrue(future is Future<int>, "$desc is Future<int>");
-    Expect.isFalse(future is Future<String>, "$desc is! Future<String>");
-    var stream = future.asStream();
-    Expect.isTrue(stream is Stream<int>, "$desc.asStream() is Stream<int>");
-    Expect.isFalse(
-        stream is Stream<String>, "$desc.asStream() is! Stream<String>");
-    if (depth > 0) {
-      testType(name, future.whenComplete(() {}), depth - 1);
-    }
-  }
-
-  for (var value in [42, null]) {
-    testType("Future($value)", new Future<int>(() => value));
-    testType("Future.delayed($value)",
-        new Future<int>.delayed(Duration.zero, () => value));
-    testType(
-        "Future.microtask($value)", new Future<int>.microtask(() => value));
-    testType("Future.sync($value)", new Future<int>.sync(() => value));
-    testType("Future.sync(future($value))",
-        new Future<int>.sync(() => new Future<int>.value(value)));
-    testType("Future.value($value)", new Future<int>.value(value));
-  }
-  testType("Completer.future", new Completer<int>().future);
-  testType("Future.error", new Future<int>.error("ERR")..catchError((_) {}));
-}
-
-void testAnyValue() {
-  asyncStart();
-  var cs = new List.generate(3, (_) => new Completer());
-  var result = Future.any(cs.map((x) => x.future));
-
-  result.then((v) {
-    Expect.equals(42, v);
-    asyncEnd();
-  }, onError: (e, s) {
-    Expect.fail("Unexpected error: $e");
-  });
-
-  cs[1].complete(42);
-  cs[2].complete(10);
-  cs[0].complete(20);
-}
-
-void testAnyError() {
-  asyncStart();
-  var cs = new List.generate(3, (_) => new Completer());
-  var result = Future.any(cs.map((x) => x.future));
-
-  result.then((v) {
-    Expect.fail("Unexpected value: $v");
-  }, onError: (e, s) {
-    Expect.equals(42, e);
-    asyncEnd();
-  });
-
-  cs[1].completeError(42);
-  cs[2].complete(10);
-  cs[0].complete(20);
-}
-
-void testAnyIgnoreIncomplete() {
-  asyncStart();
-  var cs = new List.generate(3, (_) => new Completer());
-  var result = Future.any(cs.map((x) => x.future));
-
-  result.then((v) {
-    Expect.equals(42, v);
-    asyncEnd();
-  }, onError: (e, s) {
-    Expect.fail("Unexpected error: $e");
-  });
-
-  cs[1].complete(42);
-  // The other two futures never complete.
-}
-
-void testAnyIgnoreError() {
-  asyncStart();
-  var cs = new List.generate(3, (_) => new Completer());
-  var result = Future.any(cs.map((x) => x.future));
-
-  result.then((v) {
-    Expect.equals(42, v);
-    asyncEnd();
-  }, onError: (e, s) {
-    Expect.fail("Unexpected error: $e");
-  });
-
-  cs[1].complete(42);
-  // The errors are ignored, not uncaught.
-  cs[2].completeError("BAD");
-  cs[0].completeError("BAD");
-}
-
-void testFutureResult() {
-  asyncStart();
-  () async {
-    var f = new UglyFuture(5);
-    // Sanity check that our future is as mis-behaved as we think.
-    f.then((v) {
-      Expect.equals(UglyFuture(4), v);
-    });
-
-    var v = await f;
-    // The static type of await is Flatten(static-type-of-expression), so it
-    // suggests that it flattens. In practice it currently doesn't.
-    // The specification doesn't say anything special, so v should be the
-    // completion value of the UglyFuture future which is a future.
-    Expect.equals(UglyFuture(4), v);
-
-    // We no longer flatten recursively in situations like this.
-    var w = new Future.value(42).then((_) => f);
-    Expect.equals(UglyFuture(4), await w);
-    asyncEnd();
-  }();
-}
-
-void testFutureOfFuture() async {
-  // Plain Future.
-  asyncStart();
-  var future = Future<Future<int>>.value(Future<int>.value(42));
-  Expect.type<Future<Future<int>>>(future);
-  future.then((innerFuture) {
-    Expect.type<Future<int>>(innerFuture);
-    innerFuture.then((number) {
-      Expect.equals(42, number);
-      asyncEnd();
-    });
-  });
-
-  // With completer.
-  asyncStart();
-  var completer = Completer<Future<int>>();
-  Expect.type<Future<Future<int>>>(completer.future);
-  completer.future.then((innerFuture) {
-    Expect.type<Future<int>>(innerFuture);
-    innerFuture.then((number) {
-      Expect.equals(42, number);
-      asyncEnd();
-    });
-  });
-  completer.complete(Future<int>.value(42));
-}
-
-main() {
-  asyncStart();
-
-  testValue();
-  testSync();
-  testNeverComplete();
-
-  testComplete();
-  testCompleteWithSuccessHandlerBeforeComplete();
-  testCompleteWithSuccessHandlerAfterComplete();
-  testCompleteManySuccessHandlers();
-  testCompleteWithError();
-
-  testCompleteWithFutureSuccess();
-  testCompleteWithFutureSuccess2();
-  testCompleteWithFutureError();
-  testCompleteWithFutureError2();
-  testCompleteErrorWithFuture();
-  testCompleteWithCustomFutureSuccess();
-  testCompleteWithCustomFutureError();
-  testCompleteErrorWithCustomFuture();
-  testCompleteErrorWithNull();
-
-  testException();
-  testExceptionHandler();
-  testExceptionHandlerReturnsTrue();
-  testExceptionHandlerReturnsTrue2();
-  testExceptionHandlerReturnsFalse();
-
-  testFutureAsStreamCompleteAfter();
-  testFutureAsStreamCompleteBefore();
-  testFutureAsStreamCompleteImmediate();
-  testFutureAsStreamCompleteErrorAfter();
-  testFutureAsStreamWrapper();
-
-  testFutureWhenCompleteValue();
-  testFutureWhenCompleteError();
-  testFutureWhenCompleteValueNewError();
-  testFutureWhenCompleteErrorNewError();
-
-  testFutureWhenValueFutureValue();
-  testFutureWhenErrorFutureValue();
-  testFutureWhenValueFutureError();
-  testFutureWhenErrorFutureError();
-
-  testFutureThenThrowsAsync();
-  testFutureCatchThrowsAsync();
-  testFutureWhenThrowsAsync();
-  testFutureCatchRethrowsAsync();
-
-  testChainedFutureValue();
-  testChainedFutureValueDelay();
-  testChainedFutureError();
-
-  testSyncFuture_i13368();
-
-  testWaitCleanUp();
-  testWaitCleanUpError();
-  testWaitSyncError();
-  testWaitSyncError2();
-  testWaitSyncError3();
-
-  testBadFuture();
-
-  testTypes();
-
-  testAnyValue();
-  testAnyError();
-  testAnyIgnoreIncomplete();
-  testAnyIgnoreError();
-
-  testFutureResult();
-
-  testFutureOfFuture();
-
-  asyncEnd();
-}
-
-/// A well-behaved Future that isn't recognizable as a _Future.
-class CustomFuture<T> implements Future<T> {
-  Future<T> _realFuture;
-  CustomFuture(this._realFuture);
-  Future<S> then<S>(action(T result), {Function onError}) =>
-      _realFuture.then(action, onError: onError);
-  Future<T> catchError(Function onError, {bool test(e)}) =>
-      _realFuture.catchError(onError, test: test);
-  Future<T> whenComplete(action()) => _realFuture.whenComplete(action);
-  Future<T> timeout(Duration timeLimit, {void onTimeout()}) =>
-      _realFuture.timeout(timeLimit, onTimeout: onTimeout);
-  Stream<T> asStream() => _realFuture.asStream();
-  String toString() => "CustomFuture@${_realFuture.hashCode}";
-  int get hashCode => _realFuture.hashCode;
-}
-
-/// A bad future that throws on every method.
-class BadFuture<T> implements Future<T> {
-  Future<S> then<S>(action(T result), {Function onError}) {
-    throw "then GOTCHA!";
-  }
-
-  Future<T> catchError(Function onError, {bool test(Object e)}) {
-    throw "catch GOTCHA!";
-  }
-
-  Future<T> whenComplete(action()) {
-    throw "finally GOTCHA!";
-  }
-
-  Stream<T> asStream() {
-    throw "asStream GOTCHA!";
-  }
-
-  Future<T> timeout(Duration duration, {onTimeout()}) {
-    throw "timeout GOTCHA!";
-  }
-}
-
-// An evil future that completes with another future.
-class UglyFuture implements Future<dynamic> {
-  final _result;
-  final int _badness;
-  UglyFuture(int badness)
-      : _badness = badness,
-        _result = (badness == 0) ? 42 : new UglyFuture(badness - 1);
-  Future<S> then<S>(action(value), {Function onError}) {
-    var c = new Completer<S>();
-    c.complete(new Future<S>.microtask(() => action(_result)));
-    return c.future;
-  }
-
-  Future catchError(onError, {test}) => this; // Never an error.
-  Future whenComplete(action()) {
-    return new Future.microtask(action).then((_) => this);
-  }
-
-  Stream asStream() {
-    return (new StreamController()
-          ..add(_result)
-          ..close())
-        .stream;
-  }
-
-  Future timeout(Duration duration, {onTimeout()}) {
-    return this;
-  }
-
-  int get hashCode => _badness;
-  bool operator ==(Object other) =>
-      other is UglyFuture && _badness == other._badness;
-
-  String toString() => "UglyFuture($_badness)";
-}
diff --git a/tests/lib_2/async/future_timeout_test.dart b/tests/lib_2/async/future_timeout_test.dart
deleted file mode 100644
index a2e3c67b37a..00000000000
--- a/tests/lib_2/async/future_timeout_test.dart
+++ /dev/null
@@ -1,236 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library future_timeout_test;
-
-import 'dart:async';
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-main() {
-  Future timeoutNoComplete() async {
-    asyncStart();
-    Completer completer = new Completer();
-    Future timedOut = completer.future
-        .timeout(const Duration(milliseconds: 5), onTimeout: () => 42);
-    timedOut.then((v) {
-      Expect.isTrue(v == 42);
-      asyncEnd();
-    });
-  }
-
-  Future timeoutCompleteAfterTimeout() async {
-    asyncStart();
-    Completer completer = new Completer();
-    Future timedOut = completer.future
-        .timeout(const Duration(milliseconds: 5), onTimeout: () => 42);
-    Timer timer = new Timer(const Duration(seconds: 1), () {
-      asyncStart();
-      completer.complete(-1);
-    });
-    timedOut.then((v) {
-      Expect.isTrue(v == 42);
-      asyncEnd();
-    });
-  }
-
-  Future timeoutCompleteBeforeTimeout() async {
-    asyncStart();
-    Completer completer = new Completer();
-    Timer timer = new Timer(const Duration(milliseconds: 5), () {
-      asyncStart();
-      completer.complete(42);
-    });
-    Future timedOut = completer.future
-        .timeout(const Duration(seconds: 1), onTimeout: () => -1);
-    timedOut.then((v) {
-      Expect.isTrue(v == 42);
-      asyncEnd();
-    });
-  }
-
-  Future timeoutCompleteBeforeCreate() async {
-    asyncStart();
-    Completer completer = new Completer.sync();
-    completer.complete(42);
-    Future timedOut = completer.future
-        .timeout(const Duration(milliseconds: 5), onTimeout: () => -1);
-    timedOut.then((v) {
-      Expect.isTrue(v == 42);
-      asyncEnd();
-    });
-  }
-
-  Future timeoutThrows() async {
-    asyncStart();
-    Completer completer = new Completer();
-    Future timedOut = completer.future.timeout(const Duration(milliseconds: 5),
-        onTimeout: () {
-      throw "EXN1";
-    });
-    timedOut.catchError((e, s) {
-      Expect.isTrue(e == "EXN1");
-    });
-  }
-
-  Future timeoutThrowAfterTimeout() async {
-    asyncStart();
-    Completer completer = new Completer();
-    Future timedOut = completer.future
-        .timeout(const Duration(milliseconds: 5), onTimeout: () => 42);
-    Timer timer = new Timer(const Duration(seconds: 1), () {
-      asyncStart();
-      completer.completeError("EXN2");
-    });
-    timedOut.then((v) {
-      Expect.isTrue(v == 42);
-      asyncEnd();
-    });
-  }
-
-  Future timeoutThrowBeforeTimeout() async {
-    asyncStart();
-    Completer completer = new Completer();
-    Timer timer = new Timer(const Duration(milliseconds: 5), () {
-      asyncStart();
-      completer.completeError("EXN3");
-    });
-    Future timedOut = completer.future
-        .timeout(const Duration(seconds: 1), onTimeout: () => -1);
-    timedOut.catchError((e, s) {
-      Expect.isTrue(e == "EXN3");
-    });
-  }
-
-  Future timeoutThrowBeforeCreate() async {
-    asyncStart();
-    // Prevent uncaught error when we create the error.
-    Completer completer = new Completer.sync()..future.catchError((e) {});
-    completer.completeError("EXN4");
-    Future timedOut = completer.future
-        .timeout(const Duration(milliseconds: 5), onTimeout: () => -1);
-    timedOut.catchError((e, s) {
-      Expect.isTrue(e == "EXN4");
-    });
-  }
-
-  Future timeoutReturnFutureValue() async {
-    asyncStart();
-    Future result = new Future.value(42);
-    Completer completer = new Completer();
-    Future timedOut = completer.future
-        .timeout(const Duration(milliseconds: 5), onTimeout: () => result);
-    timedOut.then((v) {
-      Expect.isTrue(v == 42);
-      asyncEnd();
-    });
-  }
-
-  Future timeoutReturnFutureError() async {
-    asyncStart();
-    Future result = new Future.error("EXN5")..catchError((e) {});
-    Completer completer = new Completer();
-    Future timedOut = completer.future
-        .timeout(const Duration(milliseconds: 5), onTimeout: () => result);
-    timedOut.catchError((e, s) {
-      Expect.isTrue(e == "EXN5");
-    });
-  }
-
-  Future timeoutReturnFutureValueLater() async {
-    asyncStart();
-    Completer result = new Completer();
-    Completer completer = new Completer();
-    Future timedOut = completer.future.timeout(const Duration(milliseconds: 5),
-        onTimeout: () {
-      result.complete(42);
-      return result.future;
-    });
-    timedOut.then((v) {
-      Expect.isTrue(v == 42);
-      asyncEnd();
-    });
-  }
-
-  Future timeoutFutureReturnErrorLater() async {
-    asyncStart();
-    Completer result = new Completer();
-    Completer completer = new Completer();
-    Future timedOut = completer.future.timeout(const Duration(milliseconds: 5),
-        onTimeout: () {
-      result.completeError("EXN6");
-      return result.future;
-    });
-    timedOut.catchError((e, s) {
-      Expect.isTrue(e == "EXN6");
-    });
-  }
-
-  Future timeoutZone() async {
-    asyncStart();
-    var initialZone = Zone.current;
-    Zone forked;
-    int registerCallDelta = 0;
-    bool callbackCalled = false;
-    Function callback = () {
-      Expect.isFalse(callbackCalled);
-      callbackCalled = true;
-      Expect.isTrue(Zone.current == forked);
-      return 42;
-    };
-    forked = Zone.current.fork(specification: new ZoneSpecification(
-        registerCallback:
-            <R>(Zone self, ZoneDelegate parent, Zone origin, R f()) {
-      R Function() result;
-      if (!identical(f, callback)) {
-        result = f;
-      } else {
-        registerCallDelta++; // Increment calls to register.
-        Expect.isTrue(origin == forked);
-        Expect.isTrue(self == forked);
-        result = () {
-          registerCallDelta--;
-          return f();
-        };
-      }
-      return f;
-    }));
-    Completer completer = new Completer();
-    Future timedOut;
-    forked.run(() {
-      timedOut = completer.future
-          .timeout(const Duration(milliseconds: 5), onTimeout: callback);
-    });
-    timedOut.then((v) {
-      Expect.isTrue(callbackCalled);
-      Expect.isTrue(registerCallDelta == 0);
-      Expect.isTrue(Zone.current == initialZone);
-      Expect.isTrue(v == 42);
-      asyncEnd();
-    });
-  }
-
-  Future timeoutNoFunction() async {
-    asyncStart();
-    Completer completer = new Completer();
-    Future timedOut = completer.future.timeout(const Duration(milliseconds: 5));
-    timedOut.catchError((e, s) {
-      Expect.isTrue(e is TimeoutException);
-      Expect.isTrue(e.duration == const Duration(milliseconds: 5));
-      Expect.isNull(s);
-    });
-  }
-
-  Future timeoutType() async {
-    asyncStart();
-    Completer completer = new Completer<int>();
-    Future timedOut = completer.future.timeout(const Duration(milliseconds: 5));
-    Expect.isTrue(timedOut is Future<int>);
-    Expect.isTrue(timedOut is! Future<String>);
-    timedOut.catchError((_) {});
-    completer.complete(499);
-  }
-}
diff --git a/tests/lib_2/async/future_value_chain2_test.dart b/tests/lib_2/async/future_value_chain2_test.dart
deleted file mode 100644
index 6ca96ccca38..00000000000
--- a/tests/lib_2/async/future_value_chain2_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-
-main() {
-  asyncStart();
-  var errorFuture = new Future.error(499);
-  var valueChainFuture = new Future.sync(() => errorFuture);
-  // The errorFuture must not be propagated immediately as we would otherwise
-  // not have time to catch the error.
-  valueChainFuture.catchError((error) {
-    Expect.equals(499, error);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/future_value_chain3_test.dart b/tests/lib_2/async/future_value_chain3_test.dart
deleted file mode 100644
index 5e3b7354bf6..00000000000
--- a/tests/lib_2/async/future_value_chain3_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-
-main() {
-  asyncStart();
-  var errorFuture = new Future.error(499);
-  errorFuture.catchError((x) {
-    Expect.equals(499, x);
-    var valueChainFuture = new Future.sync(() => errorFuture);
-    // The errorFuture must not be propagated immediately as we would otherwise
-    // not have time to catch the error.
-    valueChainFuture.catchError((error) {
-      Expect.equals(499, error);
-      asyncEnd();
-    });
-  });
-}
diff --git a/tests/lib_2/async/future_value_chain4_test.dart b/tests/lib_2/async/future_value_chain4_test.dart
deleted file mode 100644
index 7bdbe8caca8..00000000000
--- a/tests/lib_2/async/future_value_chain4_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-
-class MyFuture<T> implements Future<T> {
-  Future<S> then<S>(FutureOr<S> valueHandler(T x), {Function onError}) {
-    scheduleMicrotask(() {
-      valueHandler(null);
-    });
-    return null;
-  }
-
-  catchError(_, {test}) => null;
-  whenComplete(_) => null;
-  asStream() => null;
-  timeout(Duration timeLimit, {void onTimeout()}) => null;
-}
-
-main() {
-  asyncStart();
-  Completer completer = new Completer();
-  completer.complete(new MyFuture());
-  Expect.isTrue(completer.isCompleted);
-  Expect.throws(() => completer.complete(42));
-  completer.future.then((_) => asyncEnd());
-}
diff --git a/tests/lib_2/async/future_value_chain_test.dart b/tests/lib_2/async/future_value_chain_test.dart
deleted file mode 100644
index 9c96318119e..00000000000
--- a/tests/lib_2/async/future_value_chain_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-
-main() {
-  asyncStart();
-  var errorFuture = new Future.error(499);
-  errorFuture.catchError((x) {
-    Expect.equals(499, x);
-    var valueChainFuture = new Future.value(errorFuture);
-    // The errorFuture must not be propagated immediately as we would otherwise
-    // not have time to catch the error.
-    valueChainFuture.catchError((error) {
-      Expect.equals(499, error);
-      asyncEnd();
-    });
-  });
-}
diff --git a/tests/lib_2/async/futures_test.dart b/tests/lib_2/async/futures_test.dart
deleted file mode 100644
index 48b04f7566a..00000000000
--- a/tests/lib_2/async/futures_test.dart
+++ /dev/null
@@ -1,283 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library futures_test;
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-
-Future testWaitEmpty() {
-  final futures = <Future>[];
-  return Future.wait(futures);
-}
-
-Future testCompleteAfterWait() {
-  final futures = <Future>[];
-  final c = new Completer<Object>();
-  futures.add(c.future);
-  Future future = Future.wait(futures);
-  c.complete(null);
-  return future;
-}
-
-Future testCompleteBeforeWait() {
-  final futures = <Future>[];
-  final c = new Completer();
-  futures.add(c.future);
-  c.complete(null);
-  return Future.wait(futures);
-}
-
-Future testWaitWithMultipleValues() {
-  final futures = <Future>[];
-  final c1 = new Completer();
-  final c2 = new Completer();
-  futures.add(c1.future);
-  futures.add(c2.future);
-  c1.complete(1);
-  c2.complete(2);
-  return Future.wait(futures).then((values) {
-    Expect.listEquals([1, 2], values);
-  });
-}
-
-Future testWaitWithSingleError() {
-  final futures = <Future>[];
-  final c1 = new Completer();
-  final c2 = new Completer();
-  futures.add(c1.future);
-  futures.add(c2.future);
-  c1.complete();
-  c2.completeError('correct error');
-
-  return Future.wait(futures).then((_) {
-    throw 'incorrect error';
-  }).catchError((error, stackTrace) {
-    Expect.equals('correct error', error);
-    Expect.isNotNull(stackTrace);
-  });
-}
-
-Future testWaitWithMultipleErrors() {
-  final futures = <Future>[];
-  final c1 = new Completer();
-  final c2 = new Completer();
-  futures.add(c1.future);
-  futures.add(c2.future);
-  c1.completeError('correct error');
-  c2.completeError('incorrect error 1');
-
-  return Future.wait(futures).then((_) {
-    throw 'incorrect error 2';
-  }).catchError((error, stackTrace) {
-    Expect.equals('correct error', error);
-    Expect.isNotNull(stackTrace);
-  });
-}
-
-// Regression test for https://github.com/dart-lang/sdk/issues/41656
-Future testWaitWithErrorAndNonErrorEager() {
-  return Future(() {
-    var f1 = Future(() => throw "Error");
-    var f2 = Future(() => 3);
-    return Future.wait([f1, f2], eagerError: true);
-  }).then((_) => 0, onError: (_) => -1);
-}
-
-Future testWaitWithMultipleErrorsEager() {
-  final futures = <Future>[];
-  final c1 = new Completer();
-  final c2 = new Completer();
-  futures.add(c1.future);
-  futures.add(c2.future);
-  c1.completeError('correct error');
-  c2.completeError('incorrect error 1');
-
-  return Future.wait(futures, eagerError: true).then((_) {
-    throw 'incorrect error 2';
-  }).catchError((error, stackTrace) {
-    Expect.equals('correct error', error);
-    Expect.isNotNull(stackTrace);
-  });
-}
-
-StackTrace get currentStackTrace {
-  try {
-    throw 0;
-  } catch (e, st) {
-    return st;
-  }
-  throw "unreachable";
-}
-
-Future testWaitWithSingleErrorWithStackTrace() {
-  final futures = <Future>[];
-  final c1 = new Completer();
-  final c2 = new Completer();
-  futures.add(c1.future);
-  futures.add(c2.future);
-  c1.complete();
-  c2.completeError('correct error', currentStackTrace);
-
-  return Future.wait(futures).then((_) {
-    throw 'incorrect error';
-  }).catchError((error, stackTrace) {
-    Expect.equals('correct error', error);
-    Expect.isNotNull(stackTrace);
-  });
-}
-
-Future testWaitWithMultipleErrorsWithStackTrace() {
-  final futures = <Future>[];
-  final c1 = new Completer();
-  final c2 = new Completer();
-  futures.add(c1.future);
-  futures.add(c2.future);
-  c1.completeError('correct error', currentStackTrace);
-  c2.completeError('incorrect error 1');
-
-  return Future.wait(futures).then((_) {
-    throw 'incorrect error 2';
-  }).catchError((error, stackTrace) {
-    Expect.equals('correct error', error);
-    Expect.isNotNull(stackTrace);
-  });
-}
-
-Future testWaitWithMultipleErrorsWithStackTraceEager() {
-  final futures = <Future>[];
-  final c1 = new Completer();
-  final c2 = new Completer();
-  futures.add(c1.future);
-  futures.add(c2.future);
-  c1.completeError('correct error', currentStackTrace);
-  c2.completeError('incorrect error 1');
-
-  return Future.wait(futures, eagerError: true).then((_) {
-    throw 'incorrect error 2';
-  }).catchError((error, stackTrace) {
-    Expect.equals('correct error', error);
-    Expect.isNotNull(stackTrace);
-  });
-}
-
-Future testEagerWait() {
-  var st;
-  try {
-    throw 0;
-  } catch (e, s) {
-    st = s;
-  }
-  final c1 = new Completer();
-  final c2 = new Completer();
-  final futures = <Future>[c1.future, c2.future];
-  final waited = Future.wait(futures, eagerError: true);
-  final result = waited.then((v) {
-    throw "should not be called";
-  }, onError: (e, s) {
-    Expect.equals(e, 42);
-    Expect.identical(st, s);
-  }).whenComplete(() {
-    return new Future(() => true);
-  });
-  c1.completeError(42, st);
-  return result;
-}
-
-Future testForEachEmpty() {
-  return Future.forEach([], (_) {
-    throw 'should not be called';
-  });
-}
-
-Future testForEach() {
-  final seen = <int>[];
-  return Future.forEach([1, 2, 3, 4, 5], (n) {
-    seen.add(n);
-    return new Future.value();
-  }).then((_) => Expect.listEquals([1, 2, 3, 4, 5], seen));
-}
-
-Future testForEachSync() {
-  final seen = <int>[];
-  return Future.forEach([1, 2, 3, 4, 5], seen.add)
-      .then((_) => Expect.listEquals([1, 2, 3, 4, 5], seen));
-}
-
-Future testForEachWithException() {
-  final seen = <int>[];
-  return Future.forEach([1, 2, 3, 4, 5], (n) {
-    if (n == 4) throw 'correct exception';
-    seen.add(n);
-    return new Future.value();
-  }).then((_) {
-    throw 'incorrect exception';
-  }).catchError((error) {
-    Expect.equals('correct exception', error);
-  });
-}
-
-Future testDoWhile() {
-  var count = 0;
-  return Future.doWhile(() {
-    count++;
-    return new Future(() => count < 10);
-  }).then((_) => Expect.equals(10, count));
-}
-
-Future testDoWhileSync() {
-  var count = 0;
-  return Future.doWhile(() {
-    count++;
-    return count < 10;
-  }).then((_) => Expect.equals(10, count));
-}
-
-Future testDoWhileWithException() {
-  var count = 0;
-  return Future.doWhile(() {
-    count++;
-    if (count == 4) throw 'correct exception';
-    return new Future(() => true);
-  }).then((_) {
-    throw 'incorrect exception';
-  }).catchError((error) {
-    Expect.equals('correct exception', error);
-  }).whenComplete(() {
-    return new Future(() => false);
-  });
-}
-
-main() {
-  final futures = <Future>[];
-
-  futures.add(testWaitEmpty());
-  futures.add(testCompleteAfterWait());
-  futures.add(testCompleteBeforeWait());
-  futures.add(testWaitWithMultipleValues());
-  futures.add(testWaitWithSingleError());
-  futures.add(testWaitWithMultipleErrors());
-  futures.add(testWaitWithErrorAndNonErrorEager());
-  futures.add(testWaitWithMultipleErrorsEager());
-  futures.add(testWaitWithSingleErrorWithStackTrace());
-  futures.add(testWaitWithMultipleErrorsWithStackTrace());
-  futures.add(testWaitWithMultipleErrorsWithStackTraceEager());
-  futures.add(testEagerWait());
-  futures.add(testForEachEmpty());
-  futures.add(testForEach());
-  futures.add(testForEachSync());
-  futures.add(testForEachWithException());
-  futures.add(testDoWhile());
-  futures.add(testDoWhileSync());
-  futures.add(testDoWhileWithException());
-
-  asyncStart();
-  Future.wait(futures).then((List list) {
-    Expect.equals(19, list.length);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/intercept_print1_test.dart b/tests/lib_2/async/intercept_print1_test.dart
deleted file mode 100644
index 71e47d9b5c3..00000000000
--- a/tests/lib_2/async/intercept_print1_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-var events = [];
-
-void printHandler1(Zone self, ZoneDelegate parent, Zone origin, String line) {
-  events.add("print: $line");
-}
-
-bool shouldIntercept = true;
-
-void printHandler2(Zone self, ZoneDelegate parent, Zone origin, String line) {
-  if (shouldIntercept) {
-    events.add("print **: $line");
-  } else {
-    parent.print(origin, line);
-  }
-}
-
-const TEST_SPEC1 = const ZoneSpecification(print: printHandler1);
-const TEST_SPEC2 = const ZoneSpecification(print: printHandler2);
-
-main() {
-  Zone zone1 = Zone.current.fork(specification: TEST_SPEC1);
-  Zone zone2 = zone1.fork(specification: TEST_SPEC2);
-  zone1.run(() {
-    print("1");
-    print(2);
-    print({
-      3: [4]
-    });
-  });
-  zone2.run(() {
-    print("5");
-    shouldIntercept = false;
-    print(6);
-  });
-  Expect.listEquals(
-      ["print: 1", "print: 2", "print: {3: [4]}", "print **: 5", "print: 6"],
-      events);
-}
diff --git a/tests/lib_2/async/intercept_schedule_microtask1_test.dart b/tests/lib_2/async/intercept_schedule_microtask1_test.dart
deleted file mode 100644
index 75a9f686eb4..00000000000
--- a/tests/lib_2/async/intercept_schedule_microtask1_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  // Test that runZoned returns the result of executing the body.
-  var result = runZonedScheduleMicrotask(() => 499, onScheduleMicrotask: (f) {
-    Expect.fail("Unexpected invocation.");
-  });
-  Expect.equals(499, result);
-}
diff --git a/tests/lib_2/async/intercept_schedule_microtask2_test.dart b/tests/lib_2/async/intercept_schedule_microtask2_test.dart
deleted file mode 100644
index fe6649574a4..00000000000
--- a/tests/lib_2/async/intercept_schedule_microtask2_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-var events = [];
-
-body() {
-  events.add("body entry");
-  scheduleMicrotask(() {
-    events.add("run async body");
-  });
-  return 499;
-}
-
-handler(fun) {
-  events.add("handler");
-  fun();
-  events.add("handler done");
-}
-
-main() {
-  // Test that scheduleMicrotask interception works.
-  var result = runZonedScheduleMicrotask(body, onScheduleMicrotask: handler);
-  // No need for a ReceivePort: If the runZonedScheduleMicrotask misbehaved we
-  // would have an [events] list that is different from what we expect.
-  Expect.listEquals(
-      ["body entry", "handler", "run async body", "handler done"], events);
-}
diff --git a/tests/lib_2/async/intercept_schedule_microtask3_test.dart b/tests/lib_2/async/intercept_schedule_microtask3_test.dart
deleted file mode 100644
index 87f37e203ac..00000000000
--- a/tests/lib_2/async/intercept_schedule_microtask3_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-var events = [];
-
-body() {
-  events.add("body entry");
-  scheduleMicrotask(() {
-    events.add("run async body");
-  });
-  return 499;
-}
-
-handler(fun) {
-  events.add("handler");
-  scheduleMicrotask(fun);
-  events.add("handler done");
-}
-
-main() {
-  asyncStart();
-
-  // Test that scheduleMicrotask inside the scheduleMicrotask-handler goes to
-  // the parent zone.
-  var result = runZonedScheduleMicrotask(body, onScheduleMicrotask: handler);
-  events.add("after");
-  scheduleMicrotask(() {
-    Expect.listEquals(
-        ["body entry", "handler", "handler done", "after", "run async body"],
-        events);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/intercept_schedule_microtask4_test.dart b/tests/lib_2/async/intercept_schedule_microtask4_test.dart
deleted file mode 100644
index 9966f6b1af3..00000000000
--- a/tests/lib_2/async/intercept_schedule_microtask4_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-var events = [];
-
-body() {
-  events.add("body entry");
-  scheduleMicrotask(() {
-    events.add("run async body");
-    scheduleMicrotask(() {
-      events.add("run nested body");
-    });
-  });
-  return 499;
-}
-
-handler(fun) {
-  events.add("handler");
-  scheduleMicrotask(fun);
-  events.add("handler done");
-}
-
-main() {
-  asyncStart();
-
-  // Test that body of a scheduleMicrotask goes to the zone it came from.
-  var result = runZonedScheduleMicrotask(body, onScheduleMicrotask: handler);
-  events.add("after");
-  scheduleMicrotask(() {
-    scheduleMicrotask(() {
-      Expect.listEquals([
-        "body entry",
-        "handler",
-        "handler done",
-        "after",
-        "run async body",
-        "handler",
-        "handler done",
-        "run nested body"
-      ], events);
-      asyncEnd();
-    });
-  });
-}
diff --git a/tests/lib_2/async/intercept_schedule_microtask5_test.dart b/tests/lib_2/async/intercept_schedule_microtask5_test.dart
deleted file mode 100644
index 701368c4c30..00000000000
--- a/tests/lib_2/async/intercept_schedule_microtask5_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-var events = [];
-
-body() {
-  events.add("body entry");
-  scheduleMicrotask(() {
-    events.add("run async body");
-    scheduleMicrotask(() {
-      events.add("run nested body");
-    });
-  });
-  return 499;
-}
-
-handler(fun) {
-  events.add("handler");
-  scheduleMicrotask(fun);
-  events.add("handler done");
-}
-
-handler2(fun) {
-  events.add("handler2");
-  scheduleMicrotask(fun);
-  events.add("handler2 done");
-}
-
-main() {
-  asyncStart();
-
-  // Test that nested runZonedScheduleMicrotask go to the next outer zone.
-  var result = runZonedScheduleMicrotask(
-      () => runZonedScheduleMicrotask(body, onScheduleMicrotask: handler2),
-      onScheduleMicrotask: handler);
-  events.add("after");
-  Timer.run(() {
-    Expect.listEquals([
-      "body entry",
-      "handler2",
-      "handler",
-      "handler done",
-      "handler2 done",
-      "after",
-      "run async body",
-      "handler2",
-      "handler",
-      "handler done",
-      "handler2 done",
-      "run nested body"
-    ], events);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/intercept_schedule_microtask6_test.dart b/tests/lib_2/async/intercept_schedule_microtask6_test.dart
deleted file mode 100644
index 0e62d52692d..00000000000
--- a/tests/lib_2/async/intercept_schedule_microtask6_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-class A {
-  add(x) => print(x);
-}
-
-var events = [];
-
-body() {
-  events.add("body entry");
-  scheduleMicrotask(() {
-    events.add("run async body");
-    throw "foo";
-  });
-  return 499;
-}
-
-onAsyncHandler(fun) {
-  events.add("async handler");
-  scheduleMicrotask(fun);
-  events.add("async handler done");
-}
-
-onErrorHandler(e) {
-  events.add("error: $e");
-}
-
-main() {
-  asyncStart();
-
-  // Test that runZonedScheduleMicrotask works when async, error and done
-  // are used.
-  var result = runZonedScheduleMicrotask(body,
-      onScheduleMicrotask: onAsyncHandler, onError: onErrorHandler);
-  events.add("after");
-  Timer.run(() {
-    Expect.listEquals([
-      "body entry",
-      "async handler",
-      "async handler done",
-      "after",
-      "run async body",
-      "error: foo"
-    ], events);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/multiple_timer_test.dart b/tests/lib_2/async/multiple_timer_test.dart
deleted file mode 100644
index 3e43507b28b..00000000000
--- a/tests/lib_2/async/multiple_timer_test.dart
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library multiple_timer_test;
-
-import 'dart:async';
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-const Duration TIMEOUT1 = const Duration(seconds: 1);
-const Duration TIMEOUT2 = const Duration(seconds: 2);
-const Duration TIMEOUT3 = const Duration(milliseconds: 500);
-const Duration TIMEOUT4 = const Duration(milliseconds: 1500);
-
-// The stopwatch is more precise than the Timer.
-// Some browsers (Firefox and IE so far) can trigger too early. So we add more
-// margin. We use identical(1, 1.0) as an easy way to know if the test is
-// running on the web.
-int get safetyMargin => identical(1, 1.0) ? 100 : 0;
-
-main() {
-  Stopwatch _stopwatch1 = new Stopwatch();
-  Stopwatch _stopwatch2 = new Stopwatch();
-  Stopwatch _stopwatch3 = new Stopwatch();
-  Stopwatch _stopwatch4 = new Stopwatch();
-  List<int> _order;
-  int _message;
-
-  void timeoutHandler1() {
-    Expect.isTrue((_stopwatch1.elapsedMilliseconds + safetyMargin) >=
-        TIMEOUT1.inMilliseconds);
-    Expect.equals(_order[_message], 0);
-    _message++;
-    asyncEnd();
-  }
-
-  void timeoutHandler2() {
-    Expect.isTrue((_stopwatch2.elapsedMilliseconds + safetyMargin) >=
-        TIMEOUT2.inMilliseconds);
-    Expect.equals(_order[_message], 1);
-    _message++;
-    asyncEnd();
-  }
-
-  void timeoutHandler3() {
-    Expect.isTrue((_stopwatch3.elapsedMilliseconds + safetyMargin) >=
-        TIMEOUT3.inMilliseconds);
-    Expect.equals(_order[_message], 2);
-    _message++;
-    asyncEnd();
-  }
-
-  void timeoutHandler4() {
-    Expect.isTrue((_stopwatch4.elapsedMilliseconds + safetyMargin) >=
-        TIMEOUT4.inMilliseconds);
-    Expect.equals(_order[_message], 3);
-    _message++;
-    asyncEnd();
-  }
-
-  _order = new List<int>.filled(4, null);
-  _order[0] = 2;
-  _order[1] = 0;
-  _order[2] = 3;
-  _order[3] = 1;
-  _message = 0;
-
-  asyncStart();
-  _stopwatch1.start();
-  new Timer(TIMEOUT1, timeoutHandler1);
-  asyncStart();
-  _stopwatch2.start();
-  new Timer(TIMEOUT2, timeoutHandler2);
-  asyncStart();
-  _stopwatch3.start();
-  new Timer(TIMEOUT3, timeoutHandler3);
-  asyncStart();
-  _stopwatch4.start();
-  new Timer(TIMEOUT4, timeoutHandler4);
-}
diff --git a/tests/lib_2/async/null_future_zone_test.dart b/tests/lib_2/async/null_future_zone_test.dart
deleted file mode 100644
index 33229160396..00000000000
--- a/tests/lib_2/async/null_future_zone_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-import 'dart:async';
-
-main() {
-  asyncStart(2);
-  () async {
-    var it = new StreamIterator(new Stream.fromIterable([]));
-    Expect.isFalse(await it.moveNext());
-
-    Future nullFuture;
-    Future falseFuture;
-
-    runZoned(() {
-      nullFuture = (new StreamController()..stream.listen(null).cancel()).done;
-      falseFuture = it.moveNext();
-    }, zoneSpecification: new ZoneSpecification(scheduleMicrotask:
-        (Zone self, ZoneDelegate parent, Zone zone, void f()) {
-      Expect.fail("Should not be called");
-    }));
-
-    nullFuture.then((value) {
-      Expect.isNull(value);
-      asyncEnd();
-    });
-
-    falseFuture.then((value) {
-      Expect.isFalse(value);
-      asyncEnd();
-    });
-  }();
-}
diff --git a/tests/lib_2/async/periodic_timer2_test.dart b/tests/lib_2/async/periodic_timer2_test.dart
deleted file mode 100644
index e9db6527807..00000000000
--- a/tests/lib_2/async/periodic_timer2_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-const ms = const Duration(milliseconds: 1);
-
-expectGTE(min, actual, msg) {
-  if (actual >= min) return;
-  Expect.fail(msg.replaceAll('{0}', "$min").replaceAll('{1}', "$actual"));
-}
-
-main() {
-  int interval = 100;
-  // Most browsers can trigger timers too early. Test data shows instances where
-  // timers fire even 15ms early. We add a safety margin to prevent flakiness
-  // when running this test on affected platforms.
-  int safetyMargin = const bool.fromEnvironment('dart.library.js') ? 40 : 0;
-
-  asyncStart();
-  var sw = new Stopwatch()..start();
-  int nextTick = 1;
-  new Timer.periodic(ms * interval, (t) {
-    expectGTE(nextTick, t.tick, "tick {1} before expect next tick {0}.");
-    nextTick = t.tick + 1; // Always increment tick by at least one.
-    int time = sw.elapsedMilliseconds;
-    int minTime = interval * t.tick - safetyMargin;
-    expectGTE(minTime, time, "Actual time {1} before {0} at tick ${t.tick}");
-    if (t.tick > 20) {
-      t.cancel();
-      asyncEnd();
-    }
-  });
-}
diff --git a/tests/lib_2/async/periodic_timer3_test.dart b/tests/lib_2/async/periodic_timer3_test.dart
deleted file mode 100644
index 3f1ad5f46f9..00000000000
--- a/tests/lib_2/async/periodic_timer3_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library timer_test;
-
-import 'dart:async';
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-const ms = const Duration(milliseconds: 1);
-
-expectGTE(min, actual, msg) {
-  if (actual >= min) return;
-  Expect.fail(msg.replaceAll('{0}', "$min").replaceAll('{1}', "$actual"));
-}
-
-main() {
-  int interval = 100;
-  // Most browsers can trigger timers too early. Test data shows instances where
-  // timers fire even 15ms early. We add a safety margin to prevent flakiness
-  // when running this test on affected platforms.
-  int safetyMargin = const bool.fromEnvironment('dart.library.js') ? 40 : 0;
-
-  asyncStart();
-  var sw = new Stopwatch()..start();
-  int nextTick = 1;
-  new Timer.periodic(ms * interval, (t) {
-    expectGTE(nextTick, t.tick, "tick {1} before expect next tick {0}.");
-    int time = sw.elapsedMilliseconds;
-    int minTime = interval * t.tick - safetyMargin;
-    expectGTE(minTime, time, "Actual time {1} before {0} at tick ${t.tick}");
-    while (sw.elapsedMilliseconds < time + 3 * interval) {
-      // idle.
-    }
-    nextTick = t.tick + 2; // At least increment by two, probably more.
-    if (t.tick > 20) {
-      t.cancel();
-      asyncEnd();
-    }
-  });
-}
diff --git a/tests/lib_2/async/periodic_timer4_test.dart b/tests/lib_2/async/periodic_timer4_test.dart
deleted file mode 100644
index a8e292a9bd4..00000000000
--- a/tests/lib_2/async/periodic_timer4_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library timer_test;
-
-import 'dart:async';
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-const ms = const Duration(milliseconds: 1);
-
-expectGTE(min, actual, msg) {
-  if (actual >= min) return;
-  Expect.fail(msg.replaceAll('{0}', "$min").replaceAll('{1}', "$actual"));
-}
-
-main() {
-  int interval = 100;
-  // Most browsers can trigger timers too early. Test data shows instances where
-  // timers fire even 15ms early. We add a safety margin to prevent flakiness
-  // when running this test on affected platforms.
-  int safetyMargin = const bool.fromEnvironment('dart.library.js') ? 40 : 0;
-
-  asyncStart();
-  var sw = new Stopwatch()..start();
-  int nextTick = 1;
-  bool running = true;
-  var timer = new Timer.periodic(ms * interval, (t) {
-    expectGTE(nextTick, t.tick, "tick {1} before expect next tick {0}.");
-    nextTick += 1;
-    int time = sw.elapsedMilliseconds;
-    int minTime = interval * t.tick - safetyMargin;
-    expectGTE(minTime, time, "Actual time {1} before {0} at tick ${t.tick}");
-    if (t.tick > 20) {
-      running = false;
-      t.cancel();
-      asyncEnd();
-    }
-  });
-
-  /// Test that ticks still happen when the rest of the system is slow.
-  delay() {
-    int time = new DateTime.now().millisecondsSinceEpoch;
-    int limit = time + 3 * interval;
-    while (new DateTime.now().millisecondsSinceEpoch < limit) {
-      // Idle.
-    }
-    nextTick = timer.tick + 2; // At least increment by two, probably more.
-    if (running) Timer.run(delay);
-  }
-
-  Timer.run(delay);
-}
diff --git a/tests/lib_2/async/run_zoned1_test.dart b/tests/lib_2/async/run_zoned1_test.dart
deleted file mode 100644
index 45c20202bcd..00000000000
--- a/tests/lib_2/async/run_zoned1_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:async';
-
-main() {
-  // Make sure `runZoned` returns the result of a synchronous call.
-  Expect.equals(499, runZoned(() => 499));
-}
diff --git a/tests/lib_2/async/run_zoned4_test.dart b/tests/lib_2/async/run_zoned4_test.dart
deleted file mode 100644
index e252c81fb6a..00000000000
--- a/tests/lib_2/async/run_zoned4_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:async';
-
-main() {
-  // Make sure `runZoned` returns the result of a synchronous call when an
-  // error handler is defined.
-  Expect.equals(
-      499,
-      runZonedGuarded(() => 499, (e, s) {
-        throw "Unexpected";
-      }));
-}
diff --git a/tests/lib_2/async/run_zoned5_test.dart b/tests/lib_2/async/run_zoned5_test.dart
deleted file mode 100644
index 850aa07b88c..00000000000
--- a/tests/lib_2/async/run_zoned5_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-
-main() {
-  asyncStart();
-  // Ensure that `runZoned`'s onError handles synchronous errors.
-  runZonedGuarded(() {
-    throw 0;
-  }, (e, s) {
-    Expect.equals(0, e);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/run_zoned6_test.dart b/tests/lib_2/async/run_zoned6_test.dart
deleted file mode 100644
index 40e785ef67d..00000000000
--- a/tests/lib_2/async/run_zoned6_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'package:async_helper/async_helper.dart';
-
-main() {
-  asyncStart();
-  // Ensure that `runZoned`'s onError handles synchronous errors, and throwing
-  // in the error handler at that point (when it is a synchronous error) yields
-  // a synchronous error.
-  try {
-    runZonedGuarded(() {
-      throw 0;
-    }, (e, s) {
-      Expect.equals(0, e);
-      throw e;  //#01 : ok
-      asyncEnd();
-    });
-  } catch (e) {
-    asyncEnd(); return;  //# 01: continued
-    rethrow;
-  }
-}
diff --git a/tests/lib_2/async/run_zoned7_test.dart b/tests/lib_2/async/run_zoned7_test.dart
deleted file mode 100644
index 91fd804b8ff..00000000000
--- a/tests/lib_2/async/run_zoned7_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  Completer done = new Completer();
-
-  var events = [];
-  // Test runZoned with periodic Timers.
-  runZoned(() {
-    int counter = 0;
-    new Timer.periodic(const Duration(milliseconds: 50), (timer) {
-      if (counter == 5) {
-        timer.cancel();
-        done.complete(true);
-      }
-      counter++;
-      events.add(counter);
-    });
-  });
-
-  done.future.whenComplete(() {
-    Expect.listEquals([
-      "main exit",
-      1,
-      2,
-      3,
-      4,
-      5,
-      6,
-    ], events);
-    asyncEnd();
-  });
-  events.add("main exit");
-}
diff --git a/tests/lib_2/async/run_zoned8_test.dart b/tests/lib_2/async/run_zoned8_test.dart
deleted file mode 100644
index 22730abcd59..00000000000
--- a/tests/lib_2/async/run_zoned8_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  Completer done = new Completer();
-
-  var events = [];
-  // Test runZoned with periodic Timers.
-  runZoned(() {
-    int counter = 0;
-    new Timer.periodic(const Duration(milliseconds: 50), (timer) {
-      if (counter == 1) {
-        timer.cancel();
-        done.complete(true);
-      }
-      counter++;
-      events.add(counter);
-      throw counter;
-    });
-  }, onError: (e, [s]) {
-    events.add("error: $e");
-    Expect.isNotNull(s); // Regression test for http://dartbug.com/33589
-  });
-
-  done.future.whenComplete(() {
-    Expect.listEquals([
-      "main exit",
-      1,
-      "error: 1",
-      2,
-      "error: 2",
-    ], events);
-    asyncEnd();
-  });
-  events.add("main exit");
-}
diff --git a/tests/lib_2/async/run_zoned9_test.dart b/tests/lib_2/async/run_zoned9_test.dart
deleted file mode 100644
index 8ef3e3174bd..00000000000
--- a/tests/lib_2/async/run_zoned9_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'package:async_helper/async_helper.dart';
-
-main() {
-  asyncStart();
-  // Ensure that `runZoned`'s onError handles synchronous errors but delegates
-  // to the next runZoned when the handler returns false.
-  bool sawInnerHandler = false;
-  try {
-    runZonedGuarded(() {
-      runZonedGuarded(() {
-        throw 0;
-      }, (e, s) {
-        Expect.equals(0, e);
-        sawInnerHandler = true;
-        throw e;
-      });
-    }, (e, s) {
-      Expect.equals(0, e);
-      Expect.isTrue(sawInnerHandler);
-      // If we are waiting for an error, don't asyncEnd, but let it time out.
-      throw e;  //# 01: ok
-      asyncEnd();
-    });
-  } catch (e) {
-    asyncEnd(); return;  //# 01: continued
-    rethrow;
-  }
-}
diff --git a/tests/lib_2/async/schedule_microtask2_test.dart b/tests/lib_2/async/schedule_microtask2_test.dart
deleted file mode 100644
index c27fbae6de6..00000000000
--- a/tests/lib_2/async/schedule_microtask2_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library run_async_test;
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-import 'dart:async';
-
-main() {
-  int lastCallback = -1;
-  for (int i = 0; i < 100; i++) {
-    asyncStart();
-    scheduleMicrotask(() {
-      Expect.equals(lastCallback, i - 1);
-      lastCallback = i;
-      asyncEnd();
-    });
-  }
-}
diff --git a/tests/lib_2/async/schedule_microtask3_test.dart b/tests/lib_2/async/schedule_microtask3_test.dart
deleted file mode 100644
index 735b62ac2e3..00000000000
--- a/tests/lib_2/async/schedule_microtask3_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library run_async_test;
-
-import 'dart:async';
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-main() {
-  // Check that Timers don't run before the async callbacks.
-  bool timerCallbackExecuted = false;
-
-  asyncStart();
-  Timer.run(() {
-    timerCallbackExecuted = true;
-    asyncEnd();
-  });
-
-  scheduleMicrotask(() {
-    Expect.isFalse(timerCallbackExecuted);
-  });
-
-  scheduleMicrotask(() {
-    // Busy loop.
-    var sum = 1;
-    var sw = new Stopwatch()..start();
-    while (sw.elapsedMilliseconds < 5) {
-      sum++;
-    }
-    if (sum == 0) throw "bad"; // Just to use the result.
-    scheduleMicrotask(() {
-      Expect.isFalse(timerCallbackExecuted);
-    });
-  });
-
-  scheduleMicrotask(() {
-    Expect.isFalse(timerCallbackExecuted);
-  });
-}
diff --git a/tests/lib_2/async/schedule_microtask5_test.dart b/tests/lib_2/async/schedule_microtask5_test.dart
deleted file mode 100644
index c272a9ec02b..00000000000
--- a/tests/lib_2/async/schedule_microtask5_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library run_async_test;
-
-import 'dart:async';
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-
-main() {
-  // Check that Timers don't run before the async callbacks.
-  bool timerCallbackExecuted = false;
-
-  scheduleMicrotask(() {
-    Expect.isFalse(timerCallbackExecuted);
-  });
-
-  asyncStart();
-  Timer.run(() {
-    timerCallbackExecuted = true;
-    asyncEnd();
-  });
-
-  scheduleMicrotask(() {
-    Expect.isFalse(timerCallbackExecuted);
-  });
-
-  scheduleMicrotask(() {
-    // Busy loop.
-    var sum = 1;
-    var sw = new Stopwatch()..start();
-    while (sw.elapsedMilliseconds < 5) {
-      sum++;
-    }
-    if (sum == 0) throw "bad"; // Just to use the result.
-    scheduleMicrotask(() {
-      Expect.isFalse(timerCallbackExecuted);
-    });
-  });
-
-  scheduleMicrotask(() {
-    Expect.isFalse(timerCallbackExecuted);
-  });
-}
diff --git a/tests/lib_2/async/schedule_microtask_test.dart b/tests/lib_2/async/schedule_microtask_test.dart
deleted file mode 100644
index 163f8514531..00000000000
--- a/tests/lib_2/async/schedule_microtask_test.dart
+++ /dev/null
@@ -1,96 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-
-Future testOneScheduleMicrotask() {
-  var completer = new Completer();
-  Timer.run(() {
-    scheduleMicrotask(completer.complete);
-  });
-  return completer.future;
-}
-
-Future testMultipleScheduleMicrotask() {
-  var completer = new Completer();
-  Timer.run(() {
-    const TOTAL = 10;
-    int done = 0;
-    for (int i = 0; i < TOTAL; i++) {
-      scheduleMicrotask(() {
-        done++;
-        if (done == TOTAL) completer.complete();
-        ;
-      });
-    }
-  });
-  return completer.future;
-}
-
-Future testScheduleMicrotaskThenTimer() {
-  var completer = new Completer();
-  Timer.run(() {
-    bool scheduleMicrotaskDone = false;
-    scheduleMicrotask(() {
-      Expect.isFalse(scheduleMicrotaskDone);
-      scheduleMicrotaskDone = true;
-    });
-    Timer.run(() {
-      Expect.isTrue(scheduleMicrotaskDone);
-      completer.complete();
-    });
-  });
-  return completer.future;
-}
-
-Future testTimerThenScheduleMicrotask() {
-  var completer = new Completer();
-  Timer.run(() {
-    bool scheduleMicrotaskDone = false;
-    Timer.run(() {
-      Expect.isTrue(scheduleMicrotaskDone);
-      completer.complete();
-    });
-    scheduleMicrotask(() {
-      Expect.isFalse(scheduleMicrotaskDone);
-      scheduleMicrotaskDone = true;
-    });
-  });
-  return completer.future;
-}
-
-Future testTimerThenScheduleMicrotaskChain() {
-  var completer = new Completer();
-  Timer.run(() {
-    const TOTAL = 10;
-    int scheduleMicrotaskDone = 0;
-    Timer.run(() {
-      Expect.equals(TOTAL, scheduleMicrotaskDone);
-      completer.complete();
-    });
-    Future scheduleMicrotaskCallback() {
-      scheduleMicrotaskDone++;
-      if (scheduleMicrotaskDone != TOTAL) {
-        scheduleMicrotask(scheduleMicrotaskCallback);
-      }
-    }
-
-    scheduleMicrotask(scheduleMicrotaskCallback);
-  });
-  return completer.future;
-}
-
-main() {
-  asyncStart();
-  testOneScheduleMicrotask()
-      .then((_) => testMultipleScheduleMicrotask())
-      .then((_) => testScheduleMicrotaskThenTimer())
-      .then((_) => testTimerThenScheduleMicrotask())
-      .then((_) => testTimerThenScheduleMicrotaskChain())
-      .then((_) => asyncEnd());
-}
diff --git a/tests/lib_2/async/slow_consumer2_test.dart b/tests/lib_2/async/slow_consumer2_test.dart
deleted file mode 100644
index 4dc6716b262..00000000000
--- a/tests/lib_2/async/slow_consumer2_test.dart
+++ /dev/null
@@ -1,124 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--old_gen_heap_size=64 --no-background-compilation
-
-library slow_consumer2_test;
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-
-const int KB = 1024;
-const int MB = KB * KB;
-const int GB = KB * KB * KB;
-
-class SlowConsumer extends StreamConsumer {
-  int receivedCount = 0;
-  final int bytesPerSecond;
-  final int bufferSize;
-  final List bufferedData = [];
-  int usedBufferSize = 0;
-  int finalCount;
-
-  SlowConsumer(int this.bytesPerSecond, int this.bufferSize);
-
-  Future consume(Stream stream) {
-    return addStream(stream).then((_) => close());
-  }
-
-  Future addStream(Stream stream) {
-    Completer result = new Completer();
-    var subscription;
-    subscription = stream.listen((Object _data) {
-      List<int> data = _data;
-      receivedCount += data.length;
-      usedBufferSize += data.length;
-      bufferedData.add(data);
-      int currentBufferedDataLength = bufferedData.length;
-      if (usedBufferSize > bufferSize) {
-        subscription.pause();
-        usedBufferSize = 0;
-        int ms = data.length * 1000 ~/ bytesPerSecond;
-        Duration duration = new Duration(milliseconds: ms);
-        new Timer(duration, () {
-          for (int i = 0; i < currentBufferedDataLength; i++) {
-            bufferedData[i] = null;
-          }
-          subscription.resume();
-        });
-      }
-    }, onDone: () {
-      finalCount = receivedCount;
-      result.complete(receivedCount);
-    });
-    return result.future;
-  }
-
-  Future close() {
-    return new Future.value(finalCount);
-  }
-}
-
-class DataProvider {
-  final int chunkSize;
-  final int bytesPerSecond;
-  int sentCount = 0;
-  int targetCount;
-  StreamController controller;
-
-  DataProvider(int this.bytesPerSecond, int this.targetCount, this.chunkSize) {
-    controller = new StreamController(
-        sync: true, onPause: onPauseStateChange, onResume: onPauseStateChange);
-    Timer.run(send);
-  }
-
-  Stream get stream => controller.stream;
-
-  send() {
-    if (controller.isPaused) return;
-    if (sentCount == targetCount) {
-      controller.close();
-      return;
-    }
-    int listSize = chunkSize;
-    sentCount += listSize;
-    if (sentCount > targetCount) {
-      listSize -= sentCount - targetCount;
-      sentCount = targetCount;
-    }
-    controller.add(new List<int>.filled(listSize, null));
-    int ms = listSize * 1000 ~/ bytesPerSecond;
-    Duration duration = new Duration(milliseconds: ms);
-    if (!controller.isPaused) new Timer(duration, send);
-  }
-
-  onPauseStateChange() {
-    // We don't care if we just unpaused or paused. In either case we just
-    // call send which will test it for us.
-    send();
-  }
-}
-
-main() {
-  asyncStart();
-  // The data provider can deliver 800MB/s of data. It sends 100MB of data to
-  // the slower consumer who can only read 200MB/s. The data is sent in 1MB
-  // chunks. The consumer has a buffer of 5MB. That is, it can accept a few
-  // packages without pausing its input.
-  //
-  // This test is limited to 32MB of heap-space (see VMOptions on top of the
-  // file). If the consumer doesn't pause the data-provider it will run out of
-  // heap-space.
-
-  new DataProvider(800 * MB, 100 * MB, 1 * MB)
-      .stream
-      .pipe(new SlowConsumer(200 * MB, 5 * MB))
-      .then((count) {
-    Expect.equals(100 * MB, count);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/slow_consumer3_test.dart b/tests/lib_2/async/slow_consumer3_test.dart
deleted file mode 100644
index 5866a36e6a9..00000000000
--- a/tests/lib_2/async/slow_consumer3_test.dart
+++ /dev/null
@@ -1,95 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--old_gen_heap_size=64 --no-background-compilation
-
-library slow_consumer3_test;
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-
-const int KB = 1024;
-const int MB = KB * KB;
-const int GB = KB * KB * KB;
-
-class SlowConsumer extends StreamConsumer<List<int>> {
-  int receivedCount = 0;
-  final int bytesPerSecond;
-  final int bufferSize;
-  final List<List<int>> bufferedData = [];
-  int usedBufferSize = 0;
-  int finalCount;
-
-  SlowConsumer(int this.bytesPerSecond, int this.bufferSize);
-
-  Future consume(Stream stream) {
-    return addStream(stream).then((_) => close());
-  }
-
-  Future addStream(Stream stream) {
-    Completer result = new Completer();
-    var subscription;
-    subscription = stream.listen((Object _data) {
-      List<int> data = _data;
-      receivedCount += data.length;
-      usedBufferSize += data.length;
-      bufferedData.add(data);
-      int currentBufferedDataLength = bufferedData.length;
-      if (usedBufferSize > bufferSize) {
-        subscription.pause();
-        usedBufferSize = 0;
-        int ms = data.length * 1000 ~/ bytesPerSecond;
-        Duration duration = new Duration(milliseconds: ms);
-        new Timer(duration, () {
-          for (int i = 0; i < currentBufferedDataLength; i++) {
-            bufferedData[i] = null;
-          }
-          subscription.resume();
-        });
-      }
-    }, onDone: () {
-      finalCount = receivedCount;
-      result.complete(receivedCount);
-    });
-    return result.future;
-  }
-
-  Future close() {
-    return new Future.value(finalCount);
-  }
-}
-
-Stream<List<int>> dataGenerator(int bytesTotal, int chunkSize) {
-  int chunks = bytesTotal ~/ chunkSize;
-  return new Stream.fromIterable(new Iterable.generate(chunks, (_) {
-    // This assumes one byte per entry. In practice it will be more.
-    return new List<int>.filled(chunkSize, null);
-  }));
-}
-
-main() {
-  asyncStart();
-  // The data provider can deliver 800MBs of data as fast as it is
-  // requested. The data is sent in 0.5MB chunks. The consumer has a buffer of
-  // 3MB. That is, it can accept a few packages without pausing its input.
-  //
-  // Notice that we aren't really counting bytes, but words, since we use normal
-  // lists where each entry takes up a full word. In 64-bit VMs this will be
-  // 8 bytes per entry, so the 3*MB buffer is picked to stay below 32 actual
-  // MiB.
-  //
-  // This test is limited to 32MB of heap-space (see VMOptions on top of the
-  // file). If the consumer doesn't pause the data-provider it will run out of
-  // heap-space.
-
-  dataGenerator(100 * MB, 512 * KB)
-      .pipe(new SlowConsumer(200 * MB, 3 * MB))
-      .then((count) {
-    Expect.equals(100 * MB, count);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/slow_consumer_test.dart b/tests/lib_2/async/slow_consumer_test.dart
deleted file mode 100644
index f0670d9b840..00000000000
--- a/tests/lib_2/async/slow_consumer_test.dart
+++ /dev/null
@@ -1,126 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--old_gen_heap_size=64 --no-background-compilation
-
-library slow_consumer_test;
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-
-const int KB = 1024;
-const int MB = KB * KB;
-const int GB = KB * KB * KB;
-
-class SlowConsumer extends StreamConsumer {
-  var current = new Future.value(0);
-  final int bytesPerSecond;
-  int finalCount;
-
-  SlowConsumer(int this.bytesPerSecond);
-
-  Future consume(Stream stream) {
-    return addStream(stream).then((_) => close());
-  }
-
-  Future addStream(Stream stream) {
-    bool done = false;
-    Completer completer = new Completer();
-    var subscription;
-    subscription = stream.listen((Object _data) {
-      List data = _data;
-      current = current.then((count) {
-        // Simulated amount of time it takes to handle the data.
-        int ms = data.length * 1000 ~/ bytesPerSecond;
-        Duration duration = new Duration(milliseconds: ms);
-        if (!done) subscription.pause();
-        return new Future.delayed(duration, () {
-          if (!done) subscription.resume();
-          // Make sure we use data here to keep tracking it.
-          return count + data.length;
-        });
-      });
-    }, onDone: () {
-      done = true;
-      current.then((count) {
-        finalCount = count;
-        completer.complete(count);
-      });
-    });
-    return completer.future;
-  }
-
-  Future close() {
-    return new Future.value(finalCount);
-  }
-}
-
-class DataProvider {
-  final int chunkSize;
-  final int bytesPerSecond;
-  int sentCount = 0;
-  int targetCount;
-  StreamController controller;
-  Timer pendingSend;
-
-  DataProvider(int this.bytesPerSecond, int this.targetCount, this.chunkSize) {
-    controller = new StreamController(
-        sync: true, onPause: onPauseStateChange, onResume: onPauseStateChange);
-    Timer.run(send);
-  }
-
-  Stream get stream => controller.stream;
-
-  send() {
-    if (pendingSend != null) {
-      pendingSend.cancel();
-      pendingSend = null;
-    }
-    if (controller.isPaused) return;
-    if (sentCount == targetCount) {
-      controller.close();
-      return;
-    }
-    int listSize = chunkSize;
-    sentCount += listSize;
-    if (sentCount > targetCount) {
-      listSize -= sentCount - targetCount;
-      sentCount = targetCount;
-    }
-    controller.add(new List.filled(listSize, null));
-    int ms = listSize * 1000 ~/ bytesPerSecond;
-    Duration duration = new Duration(milliseconds: ms);
-    if (!controller.isPaused) {
-      pendingSend = new Timer(duration, send);
-    }
-  }
-
-  onPauseStateChange() {
-    // We don't care if we just unpaused or paused. In either case we just
-    // call send which will test it for us.
-    send();
-  }
-}
-
-main() {
-  asyncStart();
-  // The data provider can deliver 800MB/s of data. It sends 100MB of data to
-  // the slower consumer who can only read 200MB/s. The data is sent in 1MB
-  // chunks.
-  //
-  // This test is limited to 64MB of heap-space (see VMOptions on top of the
-  // file). If the consumer doesn't pause the data-provider it will run out of
-  // heap-space.
-
-  new DataProvider(800 * MB, 100 * MB, 1 * MB)
-      .stream
-      .pipe(new SlowConsumer(200 * MB))
-      .then((count) {
-    Expect.equals(100 * MB, count);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/stack_trace01_test.dart b/tests/lib_2/async/stack_trace01_test.dart
deleted file mode 100644
index eb180a7b0e7..00000000000
--- a/tests/lib_2/async/stack_trace01_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-StackTrace captureStackTrace() {
-  try {
-    throw 0;
-  } catch (e, st) {
-    return st;
-  }
-}
-
-main() {
-  StackTrace trace = captureStackTrace();
-  asyncStart();
-  var f = new Future.error(499, trace);
-  f.catchError((e, st) {
-    Expect.identical(trace, st);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/stack_trace02_test.dart b/tests/lib_2/async/stack_trace02_test.dart
deleted file mode 100644
index fe1fccd6387..00000000000
--- a/tests/lib_2/async/stack_trace02_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-main() {
-  StackTrace trace;
-  asyncStart();
-  var f = new Future(() {
-    throw "foo";
-  });
-  f.catchError((e, st) {
-    Expect.equals("foo", e);
-    Expect.isNotNull(st);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/stack_trace03_test.dart b/tests/lib_2/async/stack_trace03_test.dart
deleted file mode 100644
index bf934a17d5b..00000000000
--- a/tests/lib_2/async/stack_trace03_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-main() {
-  StackTrace trace;
-  asyncStart();
-  var f = new Future(() {
-    throw "foo";
-  });
-  f.then((_) => 499).catchError((e, st) {
-    Expect.equals("foo", e);
-    Expect.isNotNull(st);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/stack_trace04_test.dart b/tests/lib_2/async/stack_trace04_test.dart
deleted file mode 100644
index 16e27d6bc08..00000000000
--- a/tests/lib_2/async/stack_trace04_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-StackTrace captureStackTrace() {
-  try {
-    throw 0;
-  } catch (e, st) {
-    return st;
-  }
-}
-
-main() {
-  StackTrace trace = captureStackTrace();
-  asyncStart();
-  var f = new Future(() => 499);
-  f.then((_) => new Future.error("e", trace)).catchError((e, st) {
-    Expect.equals("e", e);
-    Expect.identical(trace, st);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/stack_trace05_test.dart b/tests/lib_2/async/stack_trace05_test.dart
deleted file mode 100644
index bda1b009e13..00000000000
--- a/tests/lib_2/async/stack_trace05_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-StackTrace captureStackTrace() {
-  try {
-    throw 0;
-  } catch (e, st) {
-    return st;
-  }
-}
-
-main() {
-  StackTrace trace = captureStackTrace();
-  asyncStart();
-  var f = new Future(() => 499);
-  f.then((_) => new Future.error("e", trace)).whenComplete(() => 499).then((_) {
-    throw "should never be reached";
-  }).catchError((e, st) {
-    Expect.equals("e", e);
-    Expect.identical(trace, st);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/stack_trace06_test.dart b/tests/lib_2/async/stack_trace06_test.dart
deleted file mode 100644
index 8e6a1ff42f2..00000000000
--- a/tests/lib_2/async/stack_trace06_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-StackTrace captureStackTrace() {
-  try {
-    throw 0;
-  } catch (e, st) {
-    return st;
-  }
-}
-
-main() {
-  Completer completer = new Completer();
-  StackTrace trace = captureStackTrace();
-  asyncStart();
-  completer.future.whenComplete(() => 499).then((_) {
-    throw "should never be reached";
-  }).catchError((e, st) {
-    Expect.equals("c-error", e);
-    Expect.identical(trace, st);
-    asyncEnd();
-  });
-  completer.completeError("c-error", trace);
-}
diff --git a/tests/lib_2/async/stack_trace07_test.dart b/tests/lib_2/async/stack_trace07_test.dart
deleted file mode 100644
index a5d7c37af60..00000000000
--- a/tests/lib_2/async/stack_trace07_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-StackTrace captureStackTrace() {
-  try {
-    throw 0;
-  } catch (e, st) {
-    return st;
-  }
-}
-
-main() {
-  Completer completer = new Completer();
-  StackTrace trace = captureStackTrace();
-  asyncStart();
-  completer.future.whenComplete(() => 499).then((_) {
-    throw "bad things happen";
-  }).catchError((e, st) {
-    Expect.equals("bad things happen", e);
-    Expect.isNotNull(st);
-    asyncEnd();
-  });
-  completer.complete(499);
-}
diff --git a/tests/lib_2/async/stack_trace08_test.dart b/tests/lib_2/async/stack_trace08_test.dart
deleted file mode 100644
index d3c116d3bd7..00000000000
--- a/tests/lib_2/async/stack_trace08_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-StackTrace captureStackTrace() {
-  try {
-    throw 0;
-  } catch (e, st) {
-    return st;
-  }
-}
-
-main() {
-  Completer completer = new Completer();
-  StackTrace trace = captureStackTrace();
-  asyncStart();
-  completer.future.whenComplete(() => 499).then((_) {
-    throw "should never be reached";
-  }).catchError((e, st) {
-    Expect.equals("c-error", e);
-    Expect.identical(trace, st);
-    // Test the rethrowing the same error keeps the stack trace.
-    throw e;
-  }).catchError((e, st) {
-    Expect.equals("c-error", e);
-    Expect.identical(trace, st);
-    asyncEnd();
-  });
-  completer.completeError("c-error", trace);
-}
diff --git a/tests/lib_2/async/stack_trace09_test.dart b/tests/lib_2/async/stack_trace09_test.dart
deleted file mode 100644
index 969de46e1f4..00000000000
--- a/tests/lib_2/async/stack_trace09_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-StackTrace captureStackTrace() {
-  try {
-    throw 0;
-  } catch (e, st) {
-    return st;
-  }
-}
-
-main() {
-  StackTrace trace = captureStackTrace();
-  var controller;
-  controller = new StreamController(onListen: () {
-    controller.addError("error", trace);
-    controller.close();
-  });
-  asyncStart();
-  controller.stream.handleError((e, st) {
-    Expect.equals("error", e);
-    Expect.identical(trace, st);
-  }).listen((x) {
-    throw "should never be reached";
-  }, onDone: asyncEnd);
-}
diff --git a/tests/lib_2/async/stack_trace10_test.dart b/tests/lib_2/async/stack_trace10_test.dart
deleted file mode 100644
index 0e7d6c0464f..00000000000
--- a/tests/lib_2/async/stack_trace10_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-StackTrace captureStackTrace() {
-  try {
-    throw 0;
-  } catch (e, st) {
-    return st;
-  }
-}
-
-main() {
-  StackTrace trace = captureStackTrace();
-  var controller;
-  controller = new StreamController(onListen: () {
-    controller.addError("error", trace);
-    controller.close();
-  });
-  asyncStart();
-  controller.stream.listen(null).asFuture().then((_) {
-    throw "should never be reached";
-  }, onError: (e, st) {
-    Expect.equals("error", e);
-    Expect.identical(trace, st);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/stack_trace11_test.dart b/tests/lib_2/async/stack_trace11_test.dart
deleted file mode 100644
index 7a60cb124c7..00000000000
--- a/tests/lib_2/async/stack_trace11_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-StackTrace captureStackTrace() {
-  try {
-    throw 0;
-  } catch (e, st) {
-    return st;
-  }
-}
-
-main() {
-  StackTrace trace = captureStackTrace();
-  asyncStart();
-  var f = new Future.error(499, trace);
-  f.then((_) {
-    throw "Unreachable";
-  }, onError: (e, st) {
-    Expect.identical(trace, st);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/stack_trace12_test.dart b/tests/lib_2/async/stack_trace12_test.dart
deleted file mode 100644
index 0991efcf8ef..00000000000
--- a/tests/lib_2/async/stack_trace12_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-main() {
-  StackTrace trace;
-  asyncStart();
-  var f = new Future(() {
-    throw "foo";
-  });
-  f.then((_) {
-    throw "Unreachable";
-  }, onError: (e, st) {
-    Expect.equals("foo", e);
-    Expect.isNotNull(st);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/stack_trace13_test.dart b/tests/lib_2/async/stack_trace13_test.dart
deleted file mode 100644
index 39e9dfb2812..00000000000
--- a/tests/lib_2/async/stack_trace13_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-main() {
-  StackTrace trace;
-  asyncStart();
-  var f = new Future(() {
-    throw "foo";
-  });
-  f.then((_) => 499).then((_) {
-    throw "Unreachable";
-  }, onError: (e, st) {
-    Expect.equals("foo", e);
-    Expect.isNotNull(st);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/stack_trace14_test.dart b/tests/lib_2/async/stack_trace14_test.dart
deleted file mode 100644
index 20c2c0a2c6a..00000000000
--- a/tests/lib_2/async/stack_trace14_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-StackTrace captureStackTrace() {
-  try {
-    throw 0;
-  } catch (e, st) {
-    return st;
-  }
-}
-
-main() {
-  StackTrace trace = captureStackTrace();
-  asyncStart();
-  var f = new Future(() => 499);
-  f.then((_) => new Future.error("e", trace)).then((_) {
-    throw "Unreachable";
-  }, onError: (e, st) {
-    Expect.equals("e", e);
-    Expect.identical(trace, st);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/stack_trace15_test.dart b/tests/lib_2/async/stack_trace15_test.dart
deleted file mode 100644
index 03e0ba9b357..00000000000
--- a/tests/lib_2/async/stack_trace15_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-StackTrace captureStackTrace() {
-  try {
-    throw 0;
-  } catch (e, st) {
-    return st;
-  }
-}
-
-main() {
-  StackTrace trace = captureStackTrace();
-  asyncStart();
-  var f = new Future(() => 499);
-  f.then((_) => new Future.error("e", trace)).whenComplete(() => 499).then((_) {
-    throw "should never be reached";
-  }).then((_) {
-    throw "Unreachable";
-  }, onError: (e, st) {
-    Expect.equals("e", e);
-    Expect.identical(trace, st);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/stack_trace16_test.dart b/tests/lib_2/async/stack_trace16_test.dart
deleted file mode 100644
index 398e14ce86c..00000000000
--- a/tests/lib_2/async/stack_trace16_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-StackTrace captureStackTrace() {
-  try {
-    throw 0;
-  } catch (e, st) {
-    return st;
-  }
-}
-
-main() {
-  Completer completer = new Completer();
-  StackTrace trace = captureStackTrace();
-  asyncStart();
-  completer.future.whenComplete(() => 499).then((_) {
-    throw "should never be reached";
-  }).then((_) {
-    throw "Unreachable";
-  }, onError: (e, st) {
-    Expect.equals("c-error", e);
-    Expect.identical(trace, st);
-    asyncEnd();
-  });
-  completer.completeError("c-error", trace);
-}
diff --git a/tests/lib_2/async/stack_trace17_test.dart b/tests/lib_2/async/stack_trace17_test.dart
deleted file mode 100644
index caed73153d8..00000000000
--- a/tests/lib_2/async/stack_trace17_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-StackTrace captureStackTrace() {
-  try {
-    throw 0;
-  } catch (e, st) {
-    return st;
-  }
-}
-
-main() {
-  Completer completer = new Completer();
-  StackTrace trace = captureStackTrace();
-  asyncStart();
-  completer.future.whenComplete(() => 499).then((_) {
-    throw "bad things happen";
-  }).then((_) {
-    throw "Unreachable";
-  }, onError: (e, st) {
-    Expect.equals("bad things happen", e);
-    Expect.isNotNull(st);
-    asyncEnd();
-  });
-  completer.complete(499);
-}
diff --git a/tests/lib_2/async/stack_trace18_test.dart b/tests/lib_2/async/stack_trace18_test.dart
deleted file mode 100644
index b15f5f7ac02..00000000000
--- a/tests/lib_2/async/stack_trace18_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-StackTrace captureStackTrace() {
-  try {
-    throw 0;
-  } catch (e, st) {
-    return st;
-  }
-}
-
-main() {
-  Completer completer = new Completer();
-  StackTrace trace = captureStackTrace();
-  asyncStart();
-  completer.future.whenComplete(() => 499).then((_) {
-    throw "should never be reached";
-  }).then((_) {
-    throw "Unreachable";
-  }, onError: (e, st) {
-    Expect.equals("c-error", e);
-    Expect.identical(trace, st);
-    // Test the rethrowing the same error keeps the stack trace.
-    throw e;
-  }).then((_) {
-    throw "Unreachable";
-  }, onError: (e, st) {
-    Expect.equals("c-error", e);
-    Expect.identical(trace, st);
-    asyncEnd();
-  });
-  completer.completeError("c-error", trace);
-}
diff --git a/tests/lib_2/async/stack_trace19_test.dart b/tests/lib_2/async/stack_trace19_test.dart
deleted file mode 100644
index 5a4d91517c0..00000000000
--- a/tests/lib_2/async/stack_trace19_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-StackTrace captureStackTrace() {
-  try {
-    throw 0;
-  } catch (e, st) {
-    return st;
-  }
-}
-
-main() {
-  Completer completer = new Completer();
-  StackTrace trace = captureStackTrace();
-  StackTrace whenCompleteStackTrace;
-  asyncStart();
-  completer.future.whenComplete(() {
-    throw "other_error";
-  }).then((_) {
-    throw "should never be reached";
-  }).catchError((e, st) {
-    Expect.equals("other_error", e);
-    Expect.isNotNull(st);
-    Expect.isFalse(identical(trace, st));
-    whenCompleteStackTrace = st;
-    // Test the rethrowing the same error keeps the stack trace.
-    throw e;
-  }).catchError((e, st) {
-    Expect.equals("other_error", e);
-    Expect.identical(whenCompleteStackTrace, st);
-    asyncEnd();
-  });
-  completer.completeError("c-error", trace);
-}
diff --git a/tests/lib_2/async/stack_trace20_test.dart b/tests/lib_2/async/stack_trace20_test.dart
deleted file mode 100644
index 0e7d6c0464f..00000000000
--- a/tests/lib_2/async/stack_trace20_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-StackTrace captureStackTrace() {
-  try {
-    throw 0;
-  } catch (e, st) {
-    return st;
-  }
-}
-
-main() {
-  StackTrace trace = captureStackTrace();
-  var controller;
-  controller = new StreamController(onListen: () {
-    controller.addError("error", trace);
-    controller.close();
-  });
-  asyncStart();
-  controller.stream.listen(null).asFuture().then((_) {
-    throw "should never be reached";
-  }, onError: (e, st) {
-    Expect.equals("error", e);
-    Expect.identical(trace, st);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/stack_trace21_test.dart b/tests/lib_2/async/stack_trace21_test.dart
deleted file mode 100644
index 9ce59293234..00000000000
--- a/tests/lib_2/async/stack_trace21_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-StackTrace captureStackTrace() {
-  try {
-    throw 0;
-  } catch (e, st) {
-    return st;
-  }
-}
-
-main() {
-  StackTrace trace = captureStackTrace();
-  var controller;
-  controller = new StreamController(onListen: () {
-    controller.addError("error", trace);
-    controller.close();
-  });
-  asyncStart();
-  controller.stream.listen((_) {
-    throw "should never be reached";
-  }, onError: (e, st) {
-    Expect.equals("error", e);
-    Expect.identical(trace, st);
-  }, onDone: () {
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/stack_trace22_test.dart b/tests/lib_2/async/stack_trace22_test.dart
deleted file mode 100644
index e37709dc277..00000000000
--- a/tests/lib_2/async/stack_trace22_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-StackTrace captureStackTrace() {
-  try {
-    throw 0;
-  } catch (e, st) {
-    return st;
-  }
-}
-
-main() {
-  StackTrace trace = captureStackTrace();
-  asyncStart();
-  var f = new Future.error(499, trace);
-  f.catchError((e, st) {
-    Expect.identical(trace, st);
-    asyncEnd();
-  }, test: (e) => e == 499);
-}
diff --git a/tests/lib_2/async/stack_trace23_test.dart b/tests/lib_2/async/stack_trace23_test.dart
deleted file mode 100644
index d6eaca3d089..00000000000
--- a/tests/lib_2/async/stack_trace23_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-StackTrace captureStackTrace() {
-  try {
-    throw 0;
-  } catch (e, st) {
-    return st;
-  }
-}
-
-main() {
-  StackTrace trace = captureStackTrace();
-  asyncStart();
-  var f = new Future.error(499, trace);
-  f.catchError((e) {
-    throw "unreachable";
-  }, test: (e) {
-    Expect.equals(499, e);
-    return false;
-  }).catchError((e, st) {
-    Expect.identical(trace, st);
-    asyncEnd();
-  }, test: (e) => e == 499);
-}
diff --git a/tests/lib_2/async/stack_trace24_test.dart b/tests/lib_2/async/stack_trace24_test.dart
deleted file mode 100644
index ccdd5db327e..00000000000
--- a/tests/lib_2/async/stack_trace24_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-main() {
-  var controller;
-  controller = new StreamController(onListen: () {
-    controller.add(499);
-    controller.close();
-  });
-  asyncStart();
-  controller.stream.map((e) {
-    throw "error";
-  }).listen((_) {
-    throw "should never be reached";
-  }, onError: (e, st) {
-    Expect.equals("error", e);
-    Expect.isNotNull(st);
-  }, onDone: () {
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/stack_trace25_test.dart b/tests/lib_2/async/stack_trace25_test.dart
deleted file mode 100644
index c04b48b9490..00000000000
--- a/tests/lib_2/async/stack_trace25_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-StackTrace captureStackTrace() {
-  try {
-    throw 0;
-  } catch (e, st) {
-    return st;
-  }
-}
-
-main() {
-  StackTrace trace = captureStackTrace();
-  var controller;
-  controller = new StreamController(onListen: () {
-    controller.addError("error", trace);
-    controller.close();
-  });
-  asyncStart();
-  var iterator = new StreamIterator(controller.stream);
-  var future = iterator.moveNext();
-  future.then((_) {
-    throw "unreachable";
-  }, onError: (e, st) {
-    Expect.equals("error", e);
-    Expect.identical(trace, st);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/stream_controller_add_error_test.dart b/tests/lib_2/async/stream_controller_add_error_test.dart
deleted file mode 100644
index 4656f831fb8..00000000000
--- a/tests/lib_2/async/stream_controller_add_error_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-
-main() {
-  // Single-cast async.
-  var controller = StreamController();
-  Expect.throwsTypeError(() {
-    controller.addError(null);
-  });
-
-  Expect.throwsTypeError(() {
-    controller.sink.addError(null);
-  });
-
-  // Single-cast sync.
-  controller = StreamController(sync: true);
-  Expect.throwsTypeError(() {
-    controller.addError(null);
-  });
-
-  Expect.throwsTypeError(() {
-    controller.sink.addError(null);
-  });
-
-  // Broadcast async.
-  controller = StreamController.broadcast();
-  Expect.throwsTypeError(() {
-    controller.addError(null);
-  });
-
-  Expect.throwsTypeError(() {
-    controller.sink.addError(null);
-  });
-
-  // Broadcast sync.
-  controller = StreamController.broadcast(sync: true);
-  Expect.throwsTypeError(() {
-    controller.addError(null);
-  });
-
-  Expect.throwsTypeError(() {
-    controller.sink.addError(null);
-  });
-}
diff --git a/tests/lib_2/async/stream_controller_async_test.dart b/tests/lib_2/async/stream_controller_async_test.dart
deleted file mode 100644
index bc8355edcce..00000000000
--- a/tests/lib_2/async/stream_controller_async_test.dart
+++ /dev/null
@@ -1,911 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test the basic StreamController and StreamController.broadcast.
-library stream_controller_async_test;
-
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_minitest.dart';
-
-import 'event_helper.dart';
-import 'stream_state_helper.dart';
-
-void cancelSub(StreamSubscription sub) {
-  sub.cancel();
-}
-
-testController() {
-  // Test fold
-  test("StreamController.fold", () {
-    StreamController c = new StreamController();
-    Stream stream = c.stream.asBroadcastStream(onCancel: cancelSub);
-    stream.fold(0, (a, b) => a + b).then(expectAsync((int v) {
-      Expect.equals(42, v);
-    }));
-    c.add(10);
-    c.add(32);
-    c.close();
-  });
-
-  test("StreamController.fold throws", () {
-    StreamController c = new StreamController();
-    Stream stream = c.stream.asBroadcastStream(onCancel: cancelSub);
-    stream.fold(0, (a, b) {
-      throw "Fnyf!";
-    }).catchError(expectAsync((error) {
-      Expect.equals("Fnyf!", error);
-    }));
-    c.add(42);
-  });
-}
-
-testSingleController() {
-  test("Single-subscription StreamController.fold", () {
-    StreamController c = new StreamController();
-    Stream stream = c.stream;
-    stream.fold(0, (a, b) => a + b).then(expectAsync((int v) {
-      Expect.equals(42, v);
-    }));
-    c.add(10);
-    c.add(32);
-    c.close();
-  });
-
-  test("Single-subscription StreamController.fold throws", () {
-    StreamController c = new StreamController();
-    Stream stream = c.stream;
-    stream.fold(0, (a, b) {
-      throw "Fnyf!";
-    }).catchError(expectAsync((e) {
-      Expect.equals("Fnyf!", e);
-    }));
-    c.add(42);
-  });
-
-  test(
-      "Single-subscription StreamController events are buffered when"
-      " there is no subscriber", () {
-    StreamController c = new StreamController();
-    EventSink sink = c.sink;
-    Stream stream = c.stream;
-    int counter = 0;
-    sink.add(1);
-    sink.add(2);
-    sink.close();
-    stream.listen((data) {
-      counter += data;
-    }, onDone: expectAsync(() {
-      Expect.equals(3, counter);
-    }));
-  });
-}
-
-testExtraMethods() {
-  Events sentEvents = new Events()
-    ..add(7)
-    ..add(9)
-    ..add(13)
-    ..add(87)
-    ..close();
-
-  test("forEach", () {
-    StreamController c = new StreamController();
-    Events actualEvents = new Events();
-    Future f = c.stream.forEach(actualEvents.add);
-    f.then(expectAsync((_) {
-      actualEvents.close();
-      Expect.listEquals(sentEvents.events, actualEvents.events);
-    }));
-    sentEvents.replay(c);
-  });
-
-  test("forEachError", () {
-    Events sentEvents = new Events()
-      ..add(7)
-      ..error("bad")
-      ..add(87)
-      ..close();
-    StreamController c = new StreamController();
-    Events actualEvents = new Events();
-    Future f = c.stream.forEach(actualEvents.add);
-    f.catchError(expectAsync((error) {
-      Expect.equals("bad", error);
-      Expect.listEquals((new Events()..add(7)).events, actualEvents.events);
-    }));
-    sentEvents.replay(c);
-  });
-
-  test("forEachError2", () {
-    Events sentEvents = new Events()
-      ..add(7)
-      ..add(9)
-      ..add(87)
-      ..close();
-    StreamController c = new StreamController();
-    Events actualEvents = new Events();
-    Future f = c.stream.forEach((x) {
-      if (x == 9) throw "bad";
-      actualEvents.add(x);
-    });
-    f.catchError(expectAsync((error) {
-      Expect.equals("bad", error);
-      Expect.listEquals((new Events()..add(7)).events, actualEvents.events);
-    }));
-    sentEvents.replay(c);
-  });
-
-  test("firstWhere", () {
-    StreamController c = new StreamController();
-    Future f = c.stream.firstWhere((x) => (x % 3) == 0);
-    f.then(expectAsync((v) {
-      Expect.equals(9, v);
-    }));
-    sentEvents.replay(c);
-  });
-
-  test("firstWhere 2", () {
-    StreamController c = new StreamController();
-    Future f = c.stream.firstWhere((x) => (x % 4) == 0);
-    f.catchError(expectAsync((e) {}));
-    sentEvents.replay(c);
-  });
-
-  test("firstWhere 3", () {
-    StreamController c = new StreamController();
-    Future f = c.stream.firstWhere((x) => (x % 4) == 0, orElse: () => 999);
-    f.then(expectAsync((v) {
-      Expect.equals(999, v);
-    }));
-    sentEvents.replay(c);
-  });
-
-  test("lastWhere", () {
-    StreamController c = new StreamController();
-    Future f = c.stream.lastWhere((x) => (x % 3) == 0);
-    f.then(expectAsync((v) {
-      Expect.equals(87, v);
-    }));
-    sentEvents.replay(c);
-  });
-
-  test("lastWhere 2", () {
-    StreamController c = new StreamController();
-    Future f = c.stream.lastWhere((x) => (x % 4) == 0);
-    f.catchError(expectAsync((e) {}));
-    sentEvents.replay(c);
-  });
-
-  test("lastWhere 3", () {
-    StreamController c = new StreamController();
-    Future f = c.stream.lastWhere((x) => (x % 4) == 0, orElse: () => 999);
-    f.then(expectAsync((v) {
-      Expect.equals(999, v);
-    }));
-    sentEvents.replay(c);
-  });
-
-  test("singleWhere", () {
-    StreamController c = new StreamController();
-    Future f = c.stream.singleWhere((x) => (x % 9) == 0);
-    f.then(expectAsync((v) {
-      Expect.equals(9, v);
-    }));
-    sentEvents.replay(c);
-  });
-
-  test("singleWhere 2", () {
-    StreamController c = new StreamController();
-    Future f = c.stream.singleWhere((x) => (x % 3) == 0); // Matches 9 and 87..
-    f.catchError(expectAsync((error) {
-      Expect.isTrue(error is StateError);
-    }));
-    sentEvents.replay(c);
-  });
-
-  test("first", () {
-    StreamController c = new StreamController();
-    Future f = c.stream.first;
-    f.then(expectAsync((v) {
-      Expect.equals(7, v);
-    }));
-    sentEvents.replay(c);
-  });
-
-  test("first empty", () {
-    StreamController c = new StreamController();
-    Future f = c.stream.first;
-    f.catchError(expectAsync((error) {
-      Expect.isTrue(error is StateError);
-    }));
-    Events emptyEvents = new Events()..close();
-    emptyEvents.replay(c);
-  });
-
-  test("first error", () {
-    StreamController c = new StreamController();
-    Future f = c.stream.first;
-    f.catchError(expectAsync((error) {
-      Expect.equals("error", error);
-    }));
-    Events errorEvents = new Events()
-      ..error("error")
-      ..close();
-    errorEvents.replay(c);
-  });
-
-  test("first error 2", () {
-    StreamController c = new StreamController();
-    Future f = c.stream.first;
-    f.catchError(expectAsync((error) {
-      Expect.equals("error", error);
-    }));
-    Events errorEvents = new Events()
-      ..error("error")
-      ..error("error2")
-      ..close();
-    errorEvents.replay(c);
-  });
-
-  test("last", () {
-    StreamController c = new StreamController();
-    Future f = c.stream.last;
-    f.then(expectAsync((v) {
-      Expect.equals(87, v);
-    }));
-    sentEvents.replay(c);
-  });
-
-  test("last empty", () {
-    StreamController c = new StreamController();
-    Future f = c.stream.last;
-    f.catchError(expectAsync((error) {
-      Expect.isTrue(error is StateError);
-    }));
-    Events emptyEvents = new Events()..close();
-    emptyEvents.replay(c);
-  });
-
-  test("last error", () {
-    StreamController c = new StreamController();
-    Future f = c.stream.last;
-    f.catchError(expectAsync((error) {
-      Expect.equals("error", error);
-    }));
-    Events errorEvents = new Events()
-      ..error("error")
-      ..close();
-    errorEvents.replay(c);
-  });
-
-  test("last error 2", () {
-    StreamController c = new StreamController();
-    Future f = c.stream.last;
-    f.catchError(expectAsync((error) {
-      Expect.equals("error", error);
-    }));
-    Events errorEvents = new Events()
-      ..error("error")
-      ..error("error2")
-      ..close();
-    errorEvents.replay(c);
-  });
-
-  test("elementAt", () {
-    StreamController c = new StreamController();
-    Future f = c.stream.elementAt(2);
-    f.then(expectAsync((v) {
-      Expect.equals(13, v);
-    }));
-    sentEvents.replay(c);
-  });
-
-  test("elementAt 2", () {
-    StreamController c = new StreamController();
-    Future f = c.stream.elementAt(20);
-    f.catchError(expectAsync((error) {
-      Expect.isTrue(error is RangeError);
-    }));
-    sentEvents.replay(c);
-  });
-
-  test("drain", () {
-    StreamController c = new StreamController();
-    Future f = c.stream.drain();
-    f.then(expectAsync((v) {
-      Expect.equals(null, v);
-    }));
-    sentEvents.replay(c);
-  });
-
-  test("drain error", () {
-    StreamController c = new StreamController();
-    Future f = c.stream.drain();
-    f.catchError(expectAsync((error) {
-      Expect.equals("error", error);
-    }));
-    Events errorEvents = new Events()
-      ..error("error")
-      ..error("error2")
-      ..close();
-    errorEvents.replay(c);
-  });
-}
-
-testPause() {
-  test("pause event-unpause", () {
-    StreamProtocolTest test = new StreamProtocolTest();
-    Completer completer = new Completer();
-    test
-      ..expectListen()
-      ..expectData(42, () {
-        test.pause(completer.future);
-      })
-      ..expectPause(() {
-        completer.complete(null);
-      })
-      ..expectData(43)
-      ..expectData(44)
-      ..expectCancel()
-      ..expectDone(test.terminate);
-    test.listen();
-    test.add(42);
-    test.add(43);
-    test.add(44);
-    test.close();
-  });
-
-  test("pause twice event-unpause", () {
-    StreamProtocolTest test = new StreamProtocolTest();
-    Completer completer = new Completer();
-    Completer completer2 = new Completer();
-    test
-      ..expectListen()
-      ..expectData(42, () {
-        test.pause(completer.future);
-        test.pause(completer2.future);
-      })
-      ..expectPause(() {
-        completer.future.then(completer2.complete);
-        completer.complete(null);
-      })
-      ..expectData(43)
-      ..expectData(44)
-      ..expectCancel()
-      ..expectDone(test.terminate);
-    test
-      ..listen()
-      ..add(42)
-      ..add(43)
-      ..add(44)
-      ..close();
-  });
-
-  test("pause twice direct-unpause", () {
-    StreamProtocolTest test = new StreamProtocolTest();
-    test
-      ..expectListen()
-      ..expectData(42, () {
-        test.pause();
-        test.pause();
-      })
-      ..expectPause(() {
-        test.resume();
-        test.resume();
-      })
-      ..expectData(43)
-      ..expectData(44)
-      ..expectCancel()
-      ..expectDone(test.terminate);
-    test
-      ..listen()
-      ..add(42)
-      ..add(43)
-      ..add(44)
-      ..close();
-  });
-
-  test("pause twice direct-event-unpause", () {
-    StreamProtocolTest test = new StreamProtocolTest();
-    Completer completer = new Completer();
-    test
-      ..expectListen()
-      ..expectData(42, () {
-        test.pause();
-        test.pause(completer.future);
-        test.add(43);
-        test.add(44);
-        test.close();
-      })
-      ..expectPause(() {
-        completer.future.then((v) => test.resume());
-        completer.complete(null);
-      })
-      ..expectData(43)
-      ..expectData(44)
-      ..expectCancel()
-      ..expectDone(test.terminate);
-    test
-      ..listen()
-      ..add(42);
-  });
-}
-
-class TestError {
-  const TestError();
-}
-
-testRethrow() {
-  TestError error = const TestError();
-
-  testStream(name, streamValueTransform) {
-    test("rethrow-$name-value", () {
-      StreamController c = new StreamController();
-      Stream s = streamValueTransform(c.stream, (v) {
-        throw error;
-      });
-      s.listen((_) {
-        Expect.fail("unexpected value");
-      }, onError: expectAsync((e) {
-        Expect.identical(error, e);
-      }));
-      c.add(null);
-      c.close();
-    });
-  }
-
-  testStreamError(name, streamErrorTransform) {
-    test("rethrow-$name-error", () {
-      StreamController c = new StreamController();
-      Stream s = streamErrorTransform(c.stream, (e) {
-        throw error;
-      });
-      s.listen((_) {
-        Expect.fail("unexpected value");
-      }, onError: expectAsync((e) {
-        Expect.identical(error, e);
-      }));
-      c.addError("SOME ERROR");
-      c.close();
-    });
-  }
-
-  testFuture(name, streamValueTransform) {
-    test("rethrow-$name-value", () {
-      StreamController c = new StreamController();
-      Future f = streamValueTransform(c.stream, (v) {
-        throw error;
-      });
-      f.then((v) {
-        Expect.fail("unreachable");
-      }, onError: expectAsync((e) {
-        Expect.identical(error, e);
-      }));
-      // Need two values to trigger compare for reduce.
-      c.add(0);
-      c.add(1);
-      c.close();
-    });
-  }
-
-  testStream("where", (s, act) => s.where(act));
-  testStream("map", (s, act) => s.map(act));
-  testStream("expand", (s, act) => s.expand(act));
-  testStream("where", (s, act) => s.where(act));
-  testStreamError("handleError", (s, act) => s.handleError(act));
-  testStreamError("handleTest", (s, act) => s.handleError((v) {}, test: act));
-  testFuture("forEach", (s, act) => s.forEach(act));
-  testFuture("every", (s, act) => s.every(act));
-  testFuture("any", (s, act) => s.any(act));
-  testFuture("reduce", (s, act) => s.reduce((a, b) => act(b)));
-  testFuture("fold", (s, act) => s.fold(0, (a, b) => act(b)));
-  testFuture("drain", (s, act) => s.drain().then(act));
-}
-
-void testBroadcastController() {
-  test("broadcast-controller-basic", () {
-    StreamProtocolTest test = new StreamProtocolTest.broadcast();
-    test
-      ..expectListen()
-      ..expectData(42)
-      ..expectCancel()
-      ..expectDone(test.terminate);
-    test
-      ..listen()
-      ..add(42)
-      ..close();
-  });
-
-  test("broadcast-controller-listen-twice", () {
-    StreamProtocolTest test = new StreamProtocolTest.broadcast();
-    test
-      ..expectListen()
-      ..expectData(42, () {
-        test.listen();
-        test.add(37);
-        test.close();
-      })
-      // Order is not guaranteed between subscriptions if not sync.
-      ..expectData(37)
-      ..expectData(37)
-      ..expectDone()
-      ..expectCancel()
-      ..expectDone(test.terminate);
-    test.listen();
-    test.add(42);
-  });
-
-  test("broadcast-controller-listen-twice-non-overlap", () {
-    StreamProtocolTest test = new StreamProtocolTest.broadcast();
-    test
-      ..expectListen(() {
-        test.add(42);
-      })
-      ..expectData(42, () {
-        test.cancel();
-      })
-      ..expectCancel(() {
-        test.listen();
-      })
-      ..expectListen(() {
-        test.add(37);
-      })
-      ..expectData(37, () {
-        test.close();
-      })
-      ..expectCancel()
-      ..expectDone(test.terminate);
-    test.listen();
-  });
-
-  test("broadcast-controller-individual-pause", () {
-    StreamProtocolTest test = new StreamProtocolTest.broadcast();
-    var sub1;
-    test
-      ..expectListen()
-      ..expectData(42)
-      ..expectData(42, () {
-        sub1.pause();
-      })
-      ..expectData(43, () {
-        sub1.cancel();
-        test.listen();
-        test.add(44);
-        test.expectData(44);
-        test.expectData(44, test.terminate);
-      });
-    sub1 = test.listen();
-    test.listen();
-    test.add(42);
-    test.add(43);
-  });
-
-  test("broadcast-controller-add-in-callback", () {
-    StreamProtocolTest test = new StreamProtocolTest.broadcast();
-    test.expectListen();
-    var sub = test.listen();
-    test.add(42);
-    sub.expectData(42, () {
-      test.add(87);
-      sub.cancel();
-    });
-    test.expectCancel(() {
-      test.add(37);
-      test.terminate();
-    });
-  });
-}
-
-void testAsBroadcast() {
-  test("asBroadcast-not-canceled", () {
-    StreamProtocolTest test = new StreamProtocolTest.asBroadcast();
-    var sub;
-    test
-      ..expectListen()
-      ..expectBroadcastListen((_) {
-        test.add(42);
-      })
-      ..expectData(42, () {
-        sub.cancel();
-      })
-      ..expectBroadcastCancel((_) {
-        sub = test.listen();
-      })
-      ..expectBroadcastListen((_) {
-        test.terminate();
-      });
-    sub = test.listen();
-  });
-
-  test("asBroadcast-canceled", () {
-    StreamProtocolTest test = new StreamProtocolTest.asBroadcast();
-    var sub;
-    test
-      ..expectListen()
-      ..expectBroadcastListen((_) {
-        test.add(42);
-      })
-      ..expectData(42, () {
-        sub.cancel();
-      })
-      ..expectBroadcastCancel((originalSub) {
-        originalSub.cancel();
-      })
-      ..expectCancel(test.terminate);
-    sub = test.listen();
-  });
-
-  test("asBroadcast-pause-original", () {
-    StreamProtocolTest test = new StreamProtocolTest.asBroadcast();
-    var sub;
-    test
-      ..expectListen()
-      ..expectBroadcastListen((_) {
-        test.add(42);
-        test.add(43);
-      })
-      ..expectData(42, () {
-        sub.cancel();
-      })
-      ..expectBroadcastCancel((originalSub) {
-        originalSub.pause(); // Pause before sending 43 from original sub.
-      })
-      ..expectPause(() {
-        sub = test.listen();
-      })
-      ..expectBroadcastListen((originalSub) {
-        originalSub.resume();
-      })
-      ..expectData(43)
-      ..expectResume(() {
-        test.close();
-      })
-      ..expectCancel()
-      ..expectDone()
-      ..expectBroadcastCancel((_) => test.terminate());
-    sub = test.listen();
-  });
-}
-
-void testSink({bool sync, bool broadcast, bool asBroadcast}) {
-  String type =
-      "${sync ? "S" : "A"}${broadcast ? "B" : "S"}${asBroadcast ? "aB" : ""}";
-  test("$type-controller-sink", () {
-    var done = expectAsync(() {});
-    var c = broadcast
-        ? new StreamController.broadcast(sync: sync)
-        : new StreamController(sync: sync);
-    var expected = new Events()
-      ..add(42)
-      ..error("error")
-      ..add(1)
-      ..add(2)
-      ..add(3)
-      ..add(4)
-      ..add(5)
-      ..add(43)
-      ..close();
-    var actual = new Events.capture(
-        asBroadcast ? c.stream.asBroadcastStream() : c.stream);
-    var sink = c.sink;
-    sink.add(42);
-    sink.addError("error");
-    sink.addStream(new Stream.fromIterable([1, 2, 3, 4, 5])).then((_) {
-      sink.add(43);
-      return sink.close();
-    }).then((_) {
-      Expect.listEquals(expected.events, actual.events);
-      done();
-    });
-  });
-
-  test("$type-controller-sink-canceled", () {
-    var done = expectAsync(() {});
-    var c = broadcast
-        ? new StreamController.broadcast(sync: sync)
-        : new StreamController(sync: sync);
-    var expected = new Events()
-      ..add(42)
-      ..error("error")
-      ..add(1)
-      ..add(2)
-      ..add(3);
-    var stream = asBroadcast ? c.stream.asBroadcastStream() : c.stream;
-    var actual = new Events();
-    var sub;
-    // Cancel subscription after receiving "3" event.
-    sub = stream.listen((v) {
-      if (v == 3) sub.cancel();
-      actual.add(v);
-    }, onError: actual.error);
-    var sink = c.sink;
-    sink.add(42);
-    sink.addError("error");
-    sink.addStream(new Stream.fromIterable([1, 2, 3, 4, 5])).then((_) {
-      Expect.listEquals(expected.events, actual.events);
-      // Close controller as well. It has no listener. If it is a broadcast
-      // stream, it will still be open, and we read the "done" future before
-      // closing. A normal stream is already done when its listener cancels.
-      Future doneFuture = sink.done;
-      sink.close();
-      return doneFuture;
-    }).then((_) {
-      // No change in events.
-      Expect.listEquals(expected.events, actual.events);
-      done();
-    });
-  });
-
-  test("$type-controller-sink-paused", () {
-    var done = expectAsync(() {});
-    var c = broadcast
-        ? new StreamController.broadcast(sync: sync)
-        : new StreamController(sync: sync);
-    var expected = new Events()
-      ..add(42)
-      ..error("error")
-      ..add(1)
-      ..add(2)
-      ..add(3)
-      ..add(4)
-      ..add(5)
-      ..add(43)
-      ..close();
-    var stream = asBroadcast ? c.stream.asBroadcastStream() : c.stream;
-    var actual = new Events();
-    var sub;
-    var pauseIsDone = false;
-    sub = stream.listen((v) {
-      if (v == 3) {
-        sub.pause(new Future.delayed(const Duration(milliseconds: 15), () {
-          pauseIsDone = true;
-        }));
-      }
-      actual.add(v);
-    }, onError: actual.error, onDone: actual.close);
-    var sink = c.sink;
-    sink.add(42);
-    sink.addError("error");
-    sink.addStream(new Stream.fromIterable([1, 2, 3, 4, 5])).then((_) {
-      sink.add(43);
-      return sink.close();
-    }).then((_) {
-      if (asBroadcast || broadcast) {
-        // The done-future of the sink completes when it passes
-        // the done event to the asBroadcastStream controller, which is
-        // before the final listener gets the event.
-        // Wait for the done event to be *delivered* before testing the
-        // events.
-        actual.onDone(() {
-          Expect.listEquals(expected.events, actual.events);
-          done();
-        });
-      } else {
-        Expect.listEquals(expected.events, actual.events);
-        done();
-      }
-    });
-  });
-
-  test("$type-controller-addstream-error-stop", () {
-    // Check that addStream defaults to ending after the first error.
-    var done = expectAsync(() {});
-    StreamController c = broadcast
-        ? new StreamController.broadcast(sync: sync)
-        : new StreamController(sync: sync);
-    Stream stream = asBroadcast ? c.stream.asBroadcastStream() : c.stream;
-    var actual = new Events.capture(stream);
-
-    var source = new Events();
-    source
-      ..add(1)
-      ..add(2)
-      ..error("BAD")
-      ..add(3)
-      ..error("FAIL")
-      ..close();
-
-    var expected = new Events()
-      ..add(1)
-      ..add(2)
-      ..error("BAD")
-      ..close();
-    StreamController sourceController = new StreamController();
-    c.addStream(sourceController.stream, cancelOnError: true).then((_) {
-      c.close().then((_) {
-        Expect.listEquals(expected.events, actual.events);
-        done();
-      });
-    });
-
-    source.replay(sourceController);
-  });
-
-  test("$type-controller-addstream-error-forward", () {
-    // Check that addStream with cancelOnError:false passes all data and errors
-    // to the controller.
-    var done = expectAsync(() {});
-    StreamController c = broadcast
-        ? new StreamController.broadcast(sync: sync)
-        : new StreamController(sync: sync);
-    Stream stream = asBroadcast ? c.stream.asBroadcastStream() : c.stream;
-    var actual = new Events.capture(stream);
-
-    var source = new Events();
-    source
-      ..add(1)
-      ..add(2)
-      ..addError("BAD")
-      ..add(3)
-      ..addError("FAIL")
-      ..close();
-
-    StreamController sourceController = new StreamController();
-    c.addStream(sourceController.stream).then((_) {
-      c.close().then((_) {
-        Expect.listEquals(source.events, actual.events);
-        done();
-      });
-    });
-
-    source.replay(sourceController);
-  });
-
-  test("$type-controller-addstream-twice", () {
-    // Using addStream twice on the same stream
-    var done = expectAsync(() {});
-    StreamController c = broadcast
-        ? new StreamController.broadcast(sync: sync)
-        : new StreamController(sync: sync);
-    Stream stream = asBroadcast ? c.stream.asBroadcastStream() : c.stream;
-    var actual = new Events.capture(stream);
-
-    // Streams of five events, throws on 3.
-    Stream s1 = new Stream.fromIterable([1, 2, 3, 4, 5])
-        .map((x) => (x == 3 ? throw x : x));
-    Stream s2 = new Stream.fromIterable([1, 2, 3, 4, 5])
-        .map((x) => (x == 3 ? throw x : x));
-
-    Events expected = new Events();
-    expected
-      ..add(1)
-      ..add(2)
-      ..error(3);
-    expected
-      ..add(1)
-      ..add(2)
-      ..error(3)
-      ..add(4)
-      ..add(5);
-    expected..close();
-
-    c.addStream(s1, cancelOnError: true).then((_) {
-      c.addStream(s2, cancelOnError: false).then((_) {
-        c.close().then((_) {
-          Expect.listEquals(expected.events, actual.events);
-          done();
-        });
-      });
-    });
-  });
-}
-
-main() {
-  testController();
-  testSingleController();
-  testExtraMethods();
-  testPause();
-  testRethrow();
-  testBroadcastController();
-  testAsBroadcast();
-  testSink(sync: true, broadcast: false, asBroadcast: false);
-  testSink(sync: true, broadcast: false, asBroadcast: true);
-  testSink(sync: true, broadcast: true, asBroadcast: false);
-  testSink(sync: false, broadcast: false, asBroadcast: false);
-  testSink(sync: false, broadcast: false, asBroadcast: true);
-  testSink(sync: false, broadcast: true, asBroadcast: false);
-}
diff --git a/tests/lib_2/async/stream_controller_test.dart b/tests/lib_2/async/stream_controller_test.dart
deleted file mode 100644
index a644be39925..00000000000
--- a/tests/lib_2/async/stream_controller_test.dart
+++ /dev/null
@@ -1,1139 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test the basic StreamController and StreamController.singleSubscription.
-library stream_controller_test;
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-import 'dart:async';
-import 'event_helper.dart';
-
-const MS = const Duration(milliseconds: 1);
-
-fail(e) {
-  Expect.fail("Unexepected error: $e");
-}
-
-void testMultiController() {
-  // Test normal flow.
-  {
-    var c = new StreamController(sync: true);
-    Events expectedEvents = new Events()
-      ..add(42)
-      ..add("dibs")
-      ..error("error!")
-      ..error("error too!")
-      ..close();
-    CaptureEvents actualEvents =
-        new Events.capture(c.stream.asBroadcastStream());
-    expectedEvents.replay(c);
-    Expect.listEquals(expectedEvents.events, actualEvents.events);
-  }
-
-  // Test automatic unsubscription on error.
-  {
-    var c = new StreamController(sync: true);
-    var expectedEvents = new Events()
-      ..add(42)
-      ..error("error");
-    var actualEvents =
-        new Events.capture(c.stream.asBroadcastStream(), cancelOnError: true);
-    Events sentEvents = new Events()
-      ..add(42)
-      ..error("error")
-      ..add("Are you there?");
-    sentEvents.replay(c);
-    Expect.listEquals(expectedEvents.events, actualEvents.events);
-  }
-
-  // Test manual unsubscription.
-  {
-    var c = new StreamController(sync: true);
-    var expectedEvents = new Events()
-      ..add(42)
-      ..error("error")
-      ..add(37);
-    dynamic actualEvents =
-        new Events.capture(c.stream.asBroadcastStream(), cancelOnError: false);
-    expectedEvents.replay(c);
-    actualEvents.subscription.cancel();
-    c.add("Are you there"); // Not sent to actualEvents.
-    Expect.listEquals(expectedEvents.events, actualEvents.events);
-  }
-
-  // Test filter.
-  {
-    var c = new StreamController(sync: true);
-    var expectedEvents = new Events()
-      ..add("a string")
-      ..add("another string")
-      ..close();
-    var sentEvents = new Events()
-      ..add("a string")
-      ..add(42)
-      ..add("another string")
-      ..close();
-    var actualEvents = new Events.capture(
-        c.stream.asBroadcastStream().where((v) => v is String));
-    sentEvents.replay(c);
-    Expect.listEquals(expectedEvents.events, actualEvents.events);
-  }
-
-  // Test map.
-  {
-    var c = new StreamController(sync: true);
-    var expectedEvents = new Events()
-      ..add("abab")
-      ..error("error")
-      ..close();
-    var sentEvents = new Events()
-      ..add("ab")
-      ..error("error")
-      ..close();
-    var actualEvents =
-        new Events.capture(c.stream.asBroadcastStream().map((v) => "$v$v"));
-    sentEvents.replay(c);
-    Expect.listEquals(expectedEvents.events, actualEvents.events);
-  }
-
-  // Test handleError.
-  {
-    var c = new StreamController(sync: true);
-    var expectedEvents = new Events()
-      ..add("ab")
-      ..error("[foo]");
-    var sentEvents = new Events()
-      ..add("ab")
-      ..error("foo")
-      ..add("ab")
-      ..close();
-    var actualEvents = new Events.capture(
-        c.stream.asBroadcastStream().handleError((error) {
-          if (error is String) {
-            // TODO(floitsch): this test originally changed the stacktrace.
-            throw "[${error}]";
-          }
-        }),
-        cancelOnError: true);
-    sentEvents.replay(c);
-    Expect.listEquals(expectedEvents.events, actualEvents.events);
-  }
-
-  // reduce is tested asynchronously and therefore not in this file.
-
-  // Test expand
-  {
-    var c = new StreamController(sync: true);
-    var sentEvents = new Events()
-      ..add(3)
-      ..add(2)
-      ..add(4)
-      ..close();
-    var expectedEvents = new Events()
-      ..add(1)
-      ..add(2)
-      ..add(3)
-      ..add(1)
-      ..add(2)
-      ..add(1)
-      ..add(2)
-      ..add(3)
-      ..add(4)
-      ..close();
-    var actualEvents =
-        new Events.capture(c.stream.asBroadcastStream().expand((v) {
-      var l = [];
-      for (int i = 0; i < v; i++) l.add(i + 1);
-      return l;
-    }));
-    sentEvents.replay(c);
-    Expect.listEquals(expectedEvents.events, actualEvents.events);
-  }
-
-  // Test transform.
-  {
-    var c = new StreamController(sync: true);
-    var sentEvents = new Events()
-      ..add("a")
-      ..error(42)
-      ..add("b")
-      ..close();
-    var expectedEvents = new Events()
-      ..error("a")
-      ..add(42)
-      ..error("b")
-      ..add("foo")
-      ..close();
-    var actualEvents = new Events.capture(c.stream
-        .asBroadcastStream()
-        .transform(new StreamTransformer.fromHandlers(handleData: (v, s) {
-          s.addError(v);
-        }, handleError: (e, st, s) {
-          s.add(e);
-        }, handleDone: (s) {
-          s.add("foo");
-          s.close();
-        })));
-    sentEvents.replay(c);
-    Expect.listEquals(expectedEvents.events, actualEvents.events);
-  }
-
-  // Test multiple filters.
-  {
-    var c = new StreamController(sync: true);
-    var sentEvents = new Events()
-      ..add(42)
-      ..add("snugglefluffy")
-      ..add(7)
-      ..add("42")
-      ..error("not FormatException") // Unsubscribes.
-      ..close();
-    var expectedEvents = new Events()
-      ..add(42)
-      ..error("not FormatException");
-    var actualEvents = new Events.capture(
-        c.stream
-            .asBroadcastStream()
-            .where((v) => v is String)
-            .map((v) => int.parse(v))
-            .handleError((error) {
-          if (error is! FormatException) throw error;
-        }).where((v) => v > 10),
-        cancelOnError: true);
-    sentEvents.replay(c);
-    Expect.listEquals(expectedEvents.events, actualEvents.events);
-  }
-
-  // Test subscription changes while firing.
-  {
-    var c = new StreamController(sync: true);
-    var sink = c.sink;
-    var stream = c.stream.asBroadcastStream();
-    var counter = 0;
-    var subscription = stream.listen(null);
-    subscription.onData((data) {
-      counter += data;
-      subscription.cancel();
-      stream.listen((data) {
-        counter += 10 * data;
-      });
-      var subscription2 = stream.listen(null);
-      subscription2.onData((data) {
-        counter += 100 * data;
-        if (data == 4) subscription2.cancel();
-      });
-    });
-    sink.add(1); // seen by stream 1
-    sink.add(2); // seen by stream 10 and 100
-    sink.add(3); // -"-
-    sink.add(4); // -"-
-    sink.add(5); // seen by stream 10
-    Expect.equals(1 + 20 + 200 + 30 + 300 + 40 + 400 + 50, counter);
-  }
-}
-
-testSingleController() {
-  // Test normal flow.
-  {
-    var c = new StreamController(sync: true);
-    Events expectedEvents = new Events()
-      ..add(42)
-      ..add("dibs")
-      ..error("error!")
-      ..error("error too!")
-      ..close();
-    CaptureEvents actualEvents = new Events.capture(c.stream);
-    expectedEvents.replay(c);
-    Expect.listEquals(expectedEvents.events, actualEvents.events);
-  }
-
-  // Test automatic unsubscription on error.
-  {
-    var c = new StreamController(sync: true);
-    var expectedEvents = new Events()
-      ..add(42)
-      ..error("error");
-    var actualEvents = new Events.capture(c.stream, cancelOnError: true);
-    Events sentEvents = new Events()
-      ..add(42)
-      ..error("error")
-      ..add("Are you there?");
-    sentEvents.replay(c);
-    Expect.listEquals(expectedEvents.events, actualEvents.events);
-  }
-
-  // Test manual unsubscription.
-  {
-    var c = new StreamController(sync: true);
-    var expectedEvents = new Events()
-      ..add(42)
-      ..error("error")
-      ..add(37);
-    dynamic actualEvents = new Events.capture(c.stream, cancelOnError: false);
-    expectedEvents.replay(c);
-    actualEvents.subscription.cancel();
-    c.add("Are you there"); // Not sent to actualEvents.
-    Expect.listEquals(expectedEvents.events, actualEvents.events);
-  }
-
-  // Test filter.
-  {
-    var c = new StreamController(sync: true);
-    var expectedEvents = new Events()
-      ..add("a string")
-      ..add("another string")
-      ..close();
-    var sentEvents = new Events()
-      ..add("a string")
-      ..add(42)
-      ..add("another string")
-      ..close();
-    var actualEvents = new Events.capture(c.stream.where((v) => v is String));
-    sentEvents.replay(c);
-    Expect.listEquals(expectedEvents.events, actualEvents.events);
-  }
-
-  // Test map.
-  {
-    var c = new StreamController(sync: true);
-    var expectedEvents = new Events()
-      ..add("abab")
-      ..error("error")
-      ..close();
-    var sentEvents = new Events()
-      ..add("ab")
-      ..error("error")
-      ..close();
-    var actualEvents = new Events.capture(c.stream.map((v) => "$v$v"));
-    sentEvents.replay(c);
-    Expect.listEquals(expectedEvents.events, actualEvents.events);
-  }
-
-  // Test handleError.
-  {
-    var c = new StreamController(sync: true);
-    var expectedEvents = new Events()
-      ..add("ab")
-      ..error("[foo]");
-    var sentEvents = new Events()
-      ..add("ab")
-      ..error("foo")
-      ..add("ab")
-      ..close();
-    var actualEvents = new Events.capture(c.stream.handleError((error) {
-      if (error is String) {
-        // TODO(floitsch): this error originally changed the stack trace.
-        throw "[${error}]";
-      }
-    }), cancelOnError: true);
-    sentEvents.replay(c);
-    Expect.listEquals(expectedEvents.events, actualEvents.events);
-  }
-
-  // reduce is tested asynchronously and therefore not in this file.
-
-  // Test expand
-  {
-    var c = new StreamController(sync: true);
-    var sentEvents = new Events()
-      ..add(3)
-      ..add(2)
-      ..add(4)
-      ..close();
-    var expectedEvents = new Events()
-      ..add(1)
-      ..add(2)
-      ..add(3)
-      ..add(1)
-      ..add(2)
-      ..add(1)
-      ..add(2)
-      ..add(3)
-      ..add(4)
-      ..close();
-    var actualEvents = new Events.capture(c.stream.expand((v) {
-      var l = [];
-      for (int i = 0; i < v; i++) l.add(i + 1);
-      return l;
-    }));
-    sentEvents.replay(c);
-    Expect.listEquals(expectedEvents.events, actualEvents.events);
-  }
-
-  // test contains.
-  {
-    var c = new StreamController(sync: true);
-    // Error after match is not important.
-    var sentEvents = new Events()
-      ..add("a")
-      ..add("x")
-      ..error("FAIL")
-      ..close();
-    Future<bool> contains = c.stream.contains("x");
-    contains.then((var c) {
-      Expect.isTrue(c);
-    });
-    sentEvents.replay(c);
-  }
-
-  {
-    var c = new StreamController(sync: true);
-    // Not matching is ok.
-    var sentEvents = new Events()
-      ..add("a")
-      ..add("x")
-      ..add("b")
-      ..close();
-    Future<bool> contains = c.stream.contains("y");
-    contains.then((var c) {
-      Expect.isFalse(c);
-    });
-    sentEvents.replay(c);
-  }
-
-  {
-    var c = new StreamController(sync: true);
-    // Error before match makes future err.
-    var sentEvents = new Events()
-      ..add("a")
-      ..error("FAIL")
-      ..add("b")
-      ..close();
-    Future<bool> contains = c.stream.contains("b");
-    contains.then((var c) {
-      Expect.fail("no value expected");
-    }).catchError((error) {
-      Expect.equals("FAIL", error);
-    });
-    sentEvents.replay(c);
-  }
-
-  // Test transform.
-  {
-    var c = new StreamController(sync: true);
-    var sentEvents = new Events()
-      ..add("a")
-      ..error(42)
-      ..add("b")
-      ..close();
-    var expectedEvents = new Events()
-      ..error("a")
-      ..add(42)
-      ..error("b")
-      ..add("foo")
-      ..close();
-    var actualEvents = new Events.capture(c.stream
-        .transform(new StreamTransformer.fromHandlers(handleData: (v, s) {
-      s.addError(v);
-    }, handleError: (e, st, s) {
-      s.add(e);
-    }, handleDone: (s) {
-      s.add("foo");
-      s.close();
-    })));
-    sentEvents.replay(c);
-    Expect.listEquals(expectedEvents.events, actualEvents.events);
-  }
-
-  // Test multiple filters.
-  {
-    var c = new StreamController(sync: true);
-    var sentEvents = new Events()
-      ..add(42)
-      ..add("snugglefluffy")
-      ..add(7)
-      ..add("42")
-      ..error("not FormatException") // Unsubscribes.
-      ..close();
-    var expectedEvents = new Events()
-      ..add(42)
-      ..error("not FormatException");
-    var actualEvents = new Events.capture(
-        c.stream
-            .where((v) => v is String)
-            .map((v) => int.parse(v))
-            .handleError((error) {
-          if (error is! FormatException) throw error;
-        }).where((v) => v > 10),
-        cancelOnError: true);
-    sentEvents.replay(c);
-    Expect.listEquals(expectedEvents.events, actualEvents.events);
-  }
-
-  // Test that only one subscription is allowed.
-  {
-    var c = new StreamController(sync: true);
-    var sink = c.sink;
-    var stream = c.stream;
-    var counter = 0;
-    var subscription = stream.listen((data) {
-      counter += data;
-    });
-    Expect.throwsStateError(() => stream.listen(null));
-    sink.add(1);
-    Expect.equals(1, counter);
-    c.close();
-  }
-}
-
-testExtraMethods() {
-  Events sentEvents = new Events()
-    ..add(1)
-    ..add(2)
-    ..add(3)
-    ..close();
-
-  var c = new StreamController(sync: true);
-  Events expectedEvents = new Events()
-    ..add(3)
-    ..close();
-  Events actualEvents = new Events.capture(c.stream.skip(2));
-  sentEvents.replay(c);
-  Expect.listEquals(expectedEvents.events, actualEvents.events);
-
-  c = new StreamController(sync: true);
-  expectedEvents = new Events()..close();
-  actualEvents = new Events.capture(c.stream.skip(3));
-  sentEvents.replay(c);
-  Expect.listEquals(expectedEvents.events, actualEvents.events);
-
-  c = new StreamController(sync: true);
-  expectedEvents = new Events()..close();
-  actualEvents = new Events.capture(c.stream.skip(7));
-  sentEvents.replay(c);
-  Expect.listEquals(expectedEvents.events, actualEvents.events);
-
-  c = new StreamController(sync: true);
-  expectedEvents = sentEvents;
-  actualEvents = new Events.capture(c.stream.skip(0));
-  sentEvents.replay(c);
-  Expect.listEquals(expectedEvents.events, actualEvents.events);
-
-  c = new StreamController(sync: true);
-  expectedEvents = new Events()
-    ..add(3)
-    ..close();
-  actualEvents = new Events.capture(c.stream.skipWhile((x) => x <= 2));
-  sentEvents.replay(c);
-  Expect.listEquals(expectedEvents.events, actualEvents.events);
-
-  c = new StreamController(sync: true);
-  expectedEvents = new Events()
-    ..add(2)
-    ..add(3)
-    ..close();
-  actualEvents = new Events.capture(c.stream.skipWhile((x) => x <= 1));
-  sentEvents.replay(c);
-  Expect.listEquals(expectedEvents.events, actualEvents.events);
-
-  c = new StreamController(sync: true);
-  expectedEvents = new Events()
-    ..add(1)
-    ..add(2)
-    ..add(3)
-    ..close();
-  actualEvents = new Events.capture(c.stream.skipWhile((x) => false));
-  sentEvents.replay(c);
-  Expect.listEquals(expectedEvents.events, actualEvents.events);
-
-  c = new StreamController(sync: true);
-  expectedEvents = new Events()
-    ..add(1)
-    ..add(2)
-    ..close();
-  actualEvents = new Events.capture(c.stream.take(2));
-  sentEvents.replay(c);
-  Expect.listEquals(expectedEvents.events, actualEvents.events);
-
-  c = new StreamController(sync: true);
-  expectedEvents = new Events()
-    ..add(1)
-    ..add(2)
-    ..close();
-  actualEvents = new Events.capture(c.stream.takeWhile((x) => x <= 2));
-  sentEvents.replay(c);
-  Expect.listEquals(expectedEvents.events, actualEvents.events);
-
-  c = new StreamController(sync: true);
-  sentEvents = new Events()
-    ..add(1)
-    ..add(1)
-    ..add(2)
-    ..add(1)
-    ..add(2)
-    ..add(2)
-    ..add(2)
-    ..close();
-  expectedEvents = new Events()
-    ..add(1)
-    ..add(2)
-    ..add(1)
-    ..add(2)
-    ..close();
-  actualEvents = new Events.capture(c.stream.distinct());
-  sentEvents.replay(c);
-  Expect.listEquals(expectedEvents.events, actualEvents.events);
-
-  c = new StreamController(sync: true);
-  sentEvents = new Events()
-    ..add(5)
-    ..add(6)
-    ..add(4)
-    ..add(6)
-    ..add(8)
-    ..add(3)
-    ..add(4)
-    ..add(1)
-    ..close();
-  expectedEvents = new Events()
-    ..add(5)
-    ..add(4)
-    ..add(3)
-    ..add(1)
-    ..close();
-  // Use 'distinct' as a filter with access to the previously emitted event.
-  actualEvents = new Events.capture(c.stream.distinct((a, b) => a < b));
-  sentEvents.replay(c);
-  Expect.listEquals(expectedEvents.events, actualEvents.events);
-}
-
-void testClosed() {
-  StreamController c = new StreamController(sync: true);
-  Expect.isFalse(c.isClosed);
-  c.add(42);
-  Expect.isFalse(c.isClosed);
-  c.addError("bad");
-  Expect.isFalse(c.isClosed);
-  c.close();
-  Expect.isTrue(c.isClosed);
-}
-
-void testCloseFuture() {
-  asyncStart();
-  asyncStart();
-  var c = new StreamController();
-  var f = c.close();
-  Expect.isTrue(c.isClosed);
-  bool doneSeen = false;
-  f.then((_) {
-    Expect.isTrue(doneSeen);
-    asyncEnd();
-  });
-  // Only listen after a while.
-  new Timer(MS * 250, () {
-    c.stream.listen(null, onDone: () {
-      asyncEnd();
-      doneSeen = true;
-    });
-  });
-}
-
-void testCloseFuture2() {
-  asyncStart();
-  asyncStart();
-  var c = new StreamController.broadcast();
-  var f = c.close();
-  Expect.isTrue(c.isClosed);
-  bool doneSeen = false;
-  f.then((_) {
-    // Done future on broadcast stream can happen
-    // before a listener is added.
-    Expect.isFalse(doneSeen);
-    asyncEnd();
-  });
-  // Only listen after a while.
-  new Timer(MS * 250, () {
-    c.stream.listen(null, onDone: () {
-      doneSeen = true;
-      asyncEnd();
-    });
-  });
-}
-
-void testCloseFuture3() {
-  asyncStart();
-  var c = new StreamController.broadcast();
-  c..add(1)..add(2)..add(3)..add(4);
-  c.stream.listen(null).cancel();
-  var f = c.close();
-  Expect.isTrue(c.isClosed);
-  f.then((_) {
-    asyncEnd();
-  });
-}
-
-void testStreamEquals() {
-  StreamController c;
-  c = new StreamController(sync: false);
-  Expect.equals(c.stream, c.stream);
-  c = new StreamController(sync: true);
-  Expect.equals(c.stream, c.stream);
-  c = new StreamController(sync: false, onListen: () {});
-  Expect.equals(c.stream, c.stream);
-  c = new StreamController(sync: true, onListen: () {});
-  Expect.equals(c.stream, c.stream);
-  c = new StreamController.broadcast(sync: false);
-  Expect.equals(c.stream, c.stream);
-  c = new StreamController.broadcast(sync: true);
-  Expect.equals(c.stream, c.stream);
-  c = new StreamController.broadcast(sync: false, onListen: () {});
-  Expect.equals(c.stream, c.stream);
-  c = new StreamController.broadcast(sync: true, onListen: () {});
-  Expect.equals(c.stream, c.stream);
-}
-
-void testCancelThrow() {
-  asyncStart();
-  asyncStart();
-  asyncStart();
-  StreamController c = new StreamController(onCancel: () {
-    asyncEnd();
-    throw "ERROR";
-  });
-  c.add(1);
-  c.add(2);
-  c.add(3);
-  Future done = c.close();
-  StreamSubscription sub;
-  sub = c.stream.listen((v) {
-    Expect.equals(1, v);
-    Future f = sub.cancel();
-    f.catchError((e) {
-      // Must complete with error from onCancel.
-      Expect.equals("ERROR", e);
-      asyncEnd();
-    });
-  });
-  done.catchError(fail).whenComplete(asyncEnd); // Must complete without error.
-}
-
-void testCancelThrow2() {
-  asyncStart();
-  asyncStart();
-  asyncStart();
-  asyncStart();
-  asyncStart();
-  StreamController c2 = new StreamController(onCancel: () {
-    asyncEnd();
-    throw "ERROR";
-  });
-  c2.add(1);
-  c2.add(2);
-  Future done2 = c2.close();
-  done2.catchError(fail).whenComplete(asyncEnd); // Should not get error;
-
-  StreamController c = new StreamController();
-  var sub;
-  sub = c.stream.listen((v) {
-    Expect.equals(1, v);
-    Future f = sub.cancel();
-    f.catchError((e) {
-      // Error from addStream stream's cancel must go only here.
-      asyncEnd();
-      Expect.equals("ERROR", e);
-    });
-  });
-  var addDone = c.addStream(c2.stream);
-  addDone.catchError(fail).whenComplete(asyncEnd); // Should not get error.
-  var done = c.done;
-  done.catchError(fail).whenComplete(asyncEnd); // Should not get error.
-}
-
-void testCancelThrow3() {
-  asyncStart();
-  asyncStart();
-  asyncStart();
-  asyncStart();
-  asyncStart();
-  asyncStart();
-  StreamController c2 = new StreamController(onCancel: () {
-    asyncEnd();
-    throw "ERROR2";
-  });
-  c2.add(1);
-  c2.add(2);
-  var done2 = c2.close();
-  done2.catchError(fail).whenComplete(asyncEnd); // Should not get error;
-
-  StreamController c = new StreamController(onCancel: () {
-    asyncEnd();
-    throw "ERROR1";
-  });
-  var sub;
-  sub = c.stream.listen((v) {
-    Expect.equals(1, v);
-    Future f = sub.cancel();
-    f.catchError((e) {
-      // Only the last error ends up here.
-      Expect.equals("ERROR1", e);
-      asyncEnd();
-    });
-  });
-  var addDone = c.addStream(c2.stream);
-  addDone.catchError(fail).whenComplete(asyncEnd); // Error must not go here.
-  c.done.catchError(fail).whenComplete(asyncEnd); // Error must not go here.
-}
-
-void testBroadcastListenAfterClose() {
-  asyncStart();
-  StreamController c = new StreamController.broadcast();
-  var f = c.close();
-  f.then((_) {
-    // Listening after close is allowed. The listener gets a done event.
-    c.stream.listen(null, onDone: asyncEnd);
-  });
-}
-
-void testBroadcastListenAfterClosePaused() {
-  asyncStart();
-  StreamController c = new StreamController.broadcast();
-  var f = c.close();
-  f.then((_) {
-    // Listening after close is allowed. The listener gets a done event.
-    var sub = c.stream.listen(null, onDone: () {
-      Expect.fail("wrong done");
-    });
-    sub.pause();
-    sub.pause();
-    new Timer(MS * 100, () {
-      sub.asFuture().whenComplete(() {
-        Expect.fail("Bad complete");
-      });
-      sub.resume();
-      new Timer(MS * 100, () {
-        sub.onDone(asyncEnd);
-        sub.resume();
-      });
-    });
-  });
-}
-
-void testAsBroadcastListenAfterClose() {
-  asyncStart();
-  asyncStart();
-  StreamController c = new StreamController();
-  Stream s = c.stream.asBroadcastStream();
-  s.listen(null, onDone: asyncEnd);
-  var f = c.close();
-  f.then((_) {
-    // Listening after close is allowed. The listener gets a done event.
-    s.listen(null, onDone: asyncEnd);
-  });
-}
-
-void testAsBroadcastListenAfterClosePaused() {
-  asyncStart();
-  asyncStart();
-  StreamController c = new StreamController();
-  Stream s = c.stream.asBroadcastStream();
-  s.listen(null, onDone: asyncEnd);
-  var f = c.close();
-  f.then((_) {
-    // Listening after close is allowed. The listener gets a done event.
-    var sub = s.listen(null, onDone: () {
-      Expect.fail("wrong done");
-    });
-    sub.pause();
-    sub.pause();
-    new Timer(MS * 100, () {
-      sub.asFuture().whenComplete(() {
-        Expect.fail("Bad complete");
-      });
-      sub.resume();
-      new Timer(MS * 100, () {
-        sub.onDone(asyncEnd);
-        sub.resume();
-      });
-    });
-  });
-}
-
-void testEventInListen() {
-  asyncStart();
-  // Regression test for http://dartbug.com/19722
-  var c;
-  void send() {
-    c.add(1);
-  }
-
-  int i = 1;
-  c = new StreamController.broadcast(onListen: send, sync: true);
-  c.stream.listen((v) {
-    Expect.equals(i++, v);
-  }, onDone: asyncEnd);
-  c.add(2);
-  c.close();
-}
-
-void testSyncControllerNotReentrant() {
-  Stream emptyStream = (new StreamController.broadcast()..close()).stream;
-  asyncStart();
-  for (int listenerCount = 1; listenerCount <= 2; listenerCount++) {
-    StreamController c = new StreamController.broadcast(sync: true);
-    for (int i = 0; i < listenerCount; i++) {
-      asyncStart();
-      asyncStart();
-      c.stream.listen((v) {
-        Expect.equals(42, v);
-        Expect.throws(() {
-          c.add(37);
-        });
-        Expect.throws(() {
-          c.addError(37);
-        });
-        Expect.throws(() {
-          c.addStream(emptyStream);
-        });
-        Expect.throws(() {
-          c.close();
-        });
-        asyncEnd();
-      }, onError: (e, s) {
-        Expect.equals(87, e);
-        Expect.throws(() {
-          c.add(37);
-        });
-        Expect.throws(() {
-          c.addError(37);
-        });
-        Expect.throws(() {
-          c.addStream(emptyStream);
-        });
-        Expect.throws(() {
-          c.close();
-        });
-        asyncEnd();
-      });
-    }
-    c.add(42);
-    c.addError(87);
-  }
-  asyncEnd();
-}
-
-void testSettingCallbacks() {
-  const int initial = 0;
-  const int running = 1;
-  const int paused = 2;
-  const int canceled = 3;
-
-  var controller = new StreamController();
-  var stream = controller.stream;
-  var state = initial;
-
-  var onListen = () {
-    state = running;
-  };
-  var onPause = () {
-    state = paused;
-  };
-  var onResume = () {
-    state = running;
-  };
-  var onCancel = () {
-    state = canceled;
-  };
-
-  Expect.isNull(controller.onListen);
-  Expect.isNull(controller.onPause);
-  Expect.isNull(controller.onResume);
-  Expect.isNull(controller.onCancel);
-
-  controller
-    ..onListen = onListen
-    ..onPause = onPause
-    ..onResume = onResume
-    ..onCancel = onCancel;
-
-  Expect.equals(onListen, controller.onListen);
-  Expect.equals(onPause, controller.onPause);
-  Expect.equals(onResume, controller.onResume);
-  Expect.equals(onCancel, controller.onCancel);
-
-  Expect.equals(initial, state);
-  var sub = stream.listen(null);
-  Expect.equals(running, state);
-  sub.pause();
-  Expect.equals(paused, state);
-  Expect.isTrue(controller.isPaused);
-  sub.resume();
-  Expect.equals(running, state);
-  Expect.isFalse(controller.isPaused);
-
-  var onListen2 = () {
-    state = -running;
-  };
-  var onPause2 = () {
-    state = -paused;
-  };
-  var onResume2 = () {
-    state = -running;
-  };
-  var onCancel2 = () {
-    state = -canceled;
-  };
-  // Changing them later does make a difference.
-  controller
-    ..onListen = onListen2
-    ..onPause = onPause2
-    ..onResume = onResume2
-    ..onCancel = onCancel2;
-
-  Expect.equals(onListen2, controller.onListen);
-  Expect.equals(onPause2, controller.onPause);
-  Expect.equals(onResume2, controller.onResume);
-  Expect.equals(onCancel2, controller.onCancel);
-
-  Expect.equals(running, state);
-  sub.pause();
-  Expect.equals(-paused, state);
-  Expect.isTrue(controller.isPaused);
-  sub.resume();
-  Expect.equals(-running, state);
-  Expect.isFalse(controller.isPaused);
-  sub.cancel();
-  Expect.equals(-canceled, state);
-}
-
-void testSettingNullCallbacks() {
-  failCallback() => fail("Callback should not be called");
-  var controller = new StreamController(
-      onListen: failCallback,
-      onPause: failCallback,
-      onResume: failCallback,
-      onCancel: failCallback);
-
-  var stream = controller.stream;
-
-  Expect.isFalse(controller.hasListener);
-  Expect.isTrue(controller.isPaused);
-
-  Expect.isNotNull(controller.onListen);
-  controller.onListen = null;
-  Expect.isNull(controller.onListen);
-
-  var sub = stream.listen(null);
-
-  Expect.isTrue(controller.hasListener);
-  Expect.isFalse(controller.isPaused);
-
-  Expect.isNotNull(controller.onPause);
-  controller.onPause = null;
-  Expect.isNull(controller.onPause);
-
-  sub.pause();
-
-  Expect.isTrue(controller.hasListener);
-  Expect.isTrue(controller.isPaused);
-
-  Expect.isNotNull(controller.onResume);
-  controller.onResume = null;
-  Expect.isNull(controller.onResume);
-
-  sub.resume();
-
-  Expect.isTrue(controller.hasListener);
-  Expect.isFalse(controller.isPaused);
-
-  Expect.isNotNull(controller.onCancel);
-  controller.onCancel = null;
-  Expect.isNull(controller.onCancel);
-
-  sub.cancel();
-
-  Expect.isFalse(controller.hasListener);
-  Expect.isFalse(controller.isPaused);
-}
-
-void testBroadcastSettingCallbacks() {
-  const int initial = 0;
-  const int running = 1;
-  const int canceled = 2;
-
-  var controller = new StreamController.broadcast();
-  var stream = controller.stream;
-  var state = initial;
-
-  Expect.throwsUnsupportedError(() => controller.onPause = () {});
-  Expect.throwsUnsupportedError(() => controller.onResume = () {});
-
-  controller
-    ..onListen = () {
-      state = running;
-    }
-    ..onCancel = () {
-      state = canceled;
-    };
-
-  Expect.equals(initial, state);
-  var sub = stream.listen(null);
-  Expect.equals(running, state);
-  sub.cancel();
-  Expect.equals(canceled, state);
-
-  // Changing them later does make a difference.
-  controller
-    ..onListen = () {
-      state = -running;
-    }
-    ..onCancel = () {
-      state = -canceled;
-    };
-
-  var sub2 = stream.listen(null);
-  Expect.equals(-running, state);
-  sub2.cancel();
-  Expect.equals(-canceled, state);
-}
-
-void testBroadcastSettingNullCallbacks() {
-  failCallback() => fail("Callback should not be called");
-  var controller = new StreamController.broadcast(
-      onListen: failCallback, onCancel: failCallback);
-
-  var stream = controller.stream;
-
-  Expect.isFalse(controller.hasListener);
-
-  controller.onListen = null;
-
-  var sub = stream.listen(null);
-
-  Expect.isTrue(controller.hasListener);
-
-  controller.onCancel = null;
-
-  sub.cancel();
-
-  Expect.isFalse(controller.hasListener);
-}
-
-main() {
-  asyncStart();
-  testMultiController();
-  testSingleController();
-  testExtraMethods();
-  testClosed();
-  testCloseFuture();
-  testCloseFuture2();
-  testCloseFuture3();
-  testStreamEquals();
-  testCancelThrow();
-  testCancelThrow2();
-  testCancelThrow3();
-  testBroadcastListenAfterClose();
-  testBroadcastListenAfterClosePaused();
-  testAsBroadcastListenAfterClose();
-  testAsBroadcastListenAfterClosePaused();
-  testEventInListen();
-  testSyncControllerNotReentrant();
-  testSettingCallbacks();
-  testSettingNullCallbacks();
-  testBroadcastSettingCallbacks();
-  testBroadcastSettingNullCallbacks();
-  asyncEnd();
-}
diff --git a/tests/lib_2/async/stream_distinct_test.dart b/tests/lib_2/async/stream_distinct_test.dart
deleted file mode 100644
index 03a06650c2d..00000000000
--- a/tests/lib_2/async/stream_distinct_test.dart
+++ /dev/null
@@ -1,128 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-class A {
-  const A();
-}
-
-class B extends A {
-  const B();
-}
-
-main() {
-  asyncStart();
-  // Correct behavior.
-  for (var eq in [null, (a, b) => a == b]) {
-    checkStream(mkSingleStream, eq, "single");
-    checkBroadcastStream(mkBroadcastStream, eq, "broadcast");
-    checkBroadcastStream(
-        () => mkSingleStream().asBroadcastStream(), eq, "asBroadcast");
-  }
-
-  // Regression test. Multiple listens on the same broadcast distinct stream.
-  var stream = mkBroadcastStream().distinct();
-  expectStream(stream, [1, 2, 3, 2], "broadcast.distinct#1");
-  expectStream(stream, [1, 2, 3, 2], "broadcast.distinct#2");
-
-  // Doesn't ignore equality.
-  expectStream(
-      new Stream.fromIterable([1, 2, 1, 3, 3]).distinct((a, b) => false),
-      [1, 2, 1, 3, 3],
-      "kFalse");
-  expectStream(
-      new Stream.fromIterable([1, 2, 1, 3, 3]).distinct((a, b) => true),
-      [1],
-      "kTrue");
-  expectStream(
-      new Stream.fromIterable([1, 2, 1, 3, 3]).distinct((a, b) => a != b),
-      [1, 1],
-      "neq");
-  expectStream(
-      new Stream.fromIterable([1, 2, 1, 3, 3]).distinct((a, b) => 2 == b),
-      [1, 1, 3, 3],
-      "is2");
-  // Forwards errors as errors.
-  expectStream(
-      new Stream.fromIterable([1, "E1", 2, "E2", 2, 3])
-          .map((v) => (v is String) ? (throw v) : v) // Make strings errors.
-          .distinct()
-          .transform(reifyErrors),
-      [1, "[E1]", 2, "[E2]", 3],
-      "errors");
-  // Equality throwing acts like error.
-  expectStream(
-      new Stream.fromIterable([1, "E1", 1, 2, "E2", 3])
-          .distinct((a, b) => (b is String) ? (throw b) : (a == b))
-          .transform(reifyErrors),
-      [1, "[E1]", 2, "[E2]", 3],
-      "eq-throws");
-  // Operator== throwing acts like error.
-  expectStream(
-      new Stream.fromIterable([1, 1, 2, 2, 1, 3])
-          .map((v) => new T(v))
-          .distinct()
-          .transform(reifyErrors.cast<T, dynamic>())
-          .map((v) => v is T ? v.value : "$v"),
-      [1, "[2]", "[2]", 3],
-      "==-throws");
-  asyncEnd();
-}
-
-checkStream(mkStream, eq, name) {
-  expectStream(mkStream().distinct(eq), [1, 2, 3, 2], "$name.distinct");
-  expectStream(mkStream().expand((e) => [e, e]).distinct(eq), [1, 2, 3, 2],
-      "$name.expand.distinct");
-  expectStream(mkStream().where((x) => x != 3).distinct(eq), [1, 2],
-      "$name.where.distinct");
-}
-
-checkBroadcastStream(mkStream, eq, name) {
-  var stream = mkStream();
-  // Run all the tests, multiple times each.
-  checkStream(() => stream, eq, "$name#1");
-  checkStream(() => stream, eq, "$name#2");
-}
-
-mkSingleStream() async* {
-  yield 1;
-  yield 2;
-  yield 3;
-  yield 2;
-}
-
-mkBroadcastStream() {
-  var c = new StreamController.broadcast();
-  c.onListen = () {
-    c.addStream(mkSingleStream()).whenComplete(c.close);
-  };
-  return c.stream;
-}
-
-expectStream(stream, list, [name]) {
-  asyncStart();
-  return stream.toList().then((events) {
-    Expect.listEquals(list, events, name);
-    asyncEnd();
-  });
-}
-
-// Class where operator== throws.
-class T {
-  final int value;
-  T(this.value);
-  int get hashCode => value.hashCode;
-  bool operator ==(Object other) =>
-      other is T && ((other.value == 2) ? throw 2 : (value == other.value));
-}
-
-StreamTransformer reifyErrors =
-    new StreamTransformer.fromHandlers(handleError: (e, s, sink) {
-  sink.add("[$e]");
-});
diff --git a/tests/lib_2/async/stream_empty_test.dart b/tests/lib_2/async/stream_empty_test.dart
deleted file mode 100644
index 8390d0f2b03..00000000000
--- a/tests/lib_2/async/stream_empty_test.dart
+++ /dev/null
@@ -1,166 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test empty stream.
-import "package:expect/expect.dart";
-import "dart:async";
-import 'package:async_helper/async_helper.dart';
-
-main() async {
-  await asyncTest(() async {
-    // Is a `const` constructor.
-    // Can be called with optional boolean to say whether broadcast or not.
-    await asyncTest(() => emptyTest(const Stream<int>.empty(), true));
-    await asyncTest(
-        () => emptyTest(const Stream<int>.empty(broadcast: true), true));
-    await asyncTest(
-        () => emptyTest(const Stream<int>.empty(broadcast: false), false));
-
-    // Check that the behavior is consistent with other empty multi-subscription
-    // streams.
-    await asyncTest(() => emptyTest(Stream<int>.fromIterable(<int>[]), false));
-    await asyncTest(() =>
-        emptyTest((StreamController<int>.broadcast()..close()).stream, true));
-    await asyncTest(
-        () => emptyTest(Stream<int>.multi((c) => c.close()), false));
-  });
-  await flushMicrotasks();
-}
-
-// Function which fails the test if it gets called.
-void unreachable([a, b]) {
-  Expect.fail("Unreachable");
-}
-
-/// Check that something happens once.
-class Checker {
-  bool checked = false;
-  void check() {
-    if (checked) Expect.fail("Checked more than once");
-    checked = true;
-  }
-}
-
-Future<void> emptyTest(Stream<int> s, bool broadcast) async {
-  var checker = Checker();
-  // Respects type parameter (not a `Stream<Never>`)
-  Expect.notType<Stream<String>>(s);
-
-  // Has the expected `isBroadcast`.
-  Expect.equals(broadcast, s.isBroadcast);
-
-  StreamSubscription<int> sub =
-      s.listen(unreachable, onError: unreachable, onDone: checker.check);
-  // Type parameter of subscription repspects stream.
-  // Not a `StreamSubscription<Never>`.
-  Expect.isFalse(sub is StreamSubscription<String>);
-
-  Expect.isFalse(sub.isPaused);
-  // Doesn't do callback immediately in response to listen.
-  Expect.isFalse(checker.checked);
-  await flushMicrotasks();
-  // Completes eventually, after a microtask.
-  Expect.isTrue(checker.checked);
-  Expect.isFalse(sub.isPaused);
-
-  // Can listen more than once, whether broadcast stream or not.
-  checker = Checker();
-  StreamSubscription<int> sub2 =
-      s.listen(unreachable, onError: unreachable, onDone: checker.check);
-  // Respects pauses.
-  sub2.pause();
-  Expect.isTrue(sub2.isPaused);
-  sub2.pause();
-  Expect.isTrue(sub2.isPaused);
-  sub2.pause(Future<int>.value(0));
-  Expect.isTrue(sub2.isPaused);
-
-  await flushMicrotasks();
-  Expect.isTrue(sub2.isPaused);
-  Expect.isFalse(checker.checked);
-
-  // Resumes when all pauses resumed.
-  sub2.resume();
-  Expect.isTrue(sub2.isPaused);
-  await flushMicrotasks();
-  Expect.isFalse(checker.checked);
-  Expect.isTrue(sub2.isPaused);
-
-  sub2.resume();
-  Expect.isFalse(sub2.isPaused);
-  await flushMicrotasks();
-  Expect.isTrue(checker.checked);
-  Expect.isFalse(sub2.isPaused);
-
-  // Can't pause after done.
-  sub2.pause(Future<int>.value(0));
-  Expect.isFalse(sub2.isPaused);
-  sub2.pause();
-  Expect.isFalse(sub2.isPaused);
-
-  // Respects cancel.
-  var sub3 = s.listen(unreachable, onError: unreachable, onDone: unreachable);
-  sub3.cancel();
-  sub3.onDone(unreachable);
-  Expect.isFalse(sub3.isPaused);
-  await flushMicrotasks();
-  Expect.isFalse(sub3.isPaused);
-
-  // Can't pause after cancel
-  sub3.pause();
-  Expect.isFalse(sub3.isPaused);
-  sub3.pause(Future<int>.value(0));
-  Expect.isFalse(sub3.isPaused);
-  // No errors.
-
-  // Respects cancel while paused.
-  var sub4 = s.listen(unreachable, onError: unreachable, onDone: unreachable);
-  sub4.pause();
-  sub4.cancel();
-  sub4.onDone(unreachable);
-  await flushMicrotasks();
-  sub4.resume();
-  await flushMicrotasks();
-
-  // Check that the stream is zone-aware.
-  // Registers onDone callback.
-  var log = [];
-  Zone zone;
-
-  void callback1() {
-    // Run in correct zone.
-    Expect.equals(zone, Zone.current);
-    log.add("don1");
-  }
-
-  void callback2() {
-    // Run in correct zone.
-    Expect.equals(zone, Zone.current);
-    log.add("don2");
-  }
-
-  zone = Zone.current.fork(
-      specification: ZoneSpecification(registerCallback: <R>(s, p, z, f) {
-    if (f == callback1) log.add("reg1");
-    if (f == callback2) log.add("reg2");
-    return p.registerCallback<R>(z, f);
-  }, run: <R>(s, p, z, f) {
-    if (f == callback1) log.add("run1");
-    if (f == callback2) log.add("run2");
-    return p.run<R>(z, f);
-  }));
-
-  await zone.run(() async {
-    var s = Stream<int>.empty();
-
-    var sub = s.listen(unreachable, onError: unreachable, onDone: callback1);
-    sub.onDone(callback2);
-  });
-  await flushMicrotasks();
-  Expect.listEquals(["reg1", "reg2", "run2", "don2"], log);
-}
-
-Future flushMicrotasks() => new Future.delayed(Duration.zero);
diff --git a/tests/lib_2/async/stream_error_test.dart b/tests/lib_2/async/stream_error_test.dart
deleted file mode 100644
index bc733766022..00000000000
--- a/tests/lib_2/async/stream_error_test.dart
+++ /dev/null
@@ -1,85 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-void main() async {
-  var stack = StackTrace.fromString("some stack trace");
-  var error = MyError();
-
-  asyncStart();
-
-  {
-    // There is an error before any element.
-    var stream = Stream<int>.error(error, stack);
-    try {
-      await stream.first;
-      Expect.fail("didn't throw");
-    } on MyError catch (e, s) {
-      Expect.identical(error, e);
-      Expect.identical(stack, s);
-    }
-  }
-
-  {
-    // There is an error before any element.
-    var stream = Stream<int>.error(error, stack);
-    try {
-      await for (var _ in stream) {}
-      Expect.fail("didn't throw");
-    } on MyError catch (e, s) {
-      Expect.identical(error, e);
-      Expect.identical(stack, s);
-    }
-  }
-
-  {
-    // There is no second element or error.
-    var stream = Stream<int>.error(error, stack);
-    int errorCount = 0;
-    var noErrorStream = stream.handleError((e, s) {
-      Expect.identical(error, e);
-      Expect.identical(stack, s);
-      errorCount++;
-    }, test: (o) => o is MyError);
-    Expect.isTrue(await noErrorStream.isEmpty);
-    Expect.equals(1, errorCount);
-  }
-
-  {
-    // Works with subscriptions and pause-resume.
-    var stream = Stream<int>.error(error, stack);
-    int errorCount = 0;
-    var onDone = Completer();
-    var sub = stream.listen((v) {
-      Expect.fail("Value event");
-    }, onError: (e, s) {
-      Expect.identical(error, e);
-      Expect.identical(stack, s);
-      errorCount++;
-    }, onDone: () {
-      Expect.equals(1, errorCount);
-      onDone.complete();
-    });
-    sub.pause();
-    await Future.delayed(Duration(milliseconds: 10));
-    Expect.equals(0, errorCount);
-    Expect.isFalse(onDone.isCompleted);
-    sub.resume();
-    await onDone.future;
-  }
-
-  // A null error argument is a synchronous error.
-  Expect.throwsTypeError(() {
-    Stream.error(null);
-  });
-
-  asyncEnd();
-}
-
-class MyError {}
diff --git a/tests/lib_2/async/stream_event_transformed_test.dart b/tests/lib_2/async/stream_event_transformed_test.dart
deleted file mode 100644
index 475e6fd9448..00000000000
--- a/tests/lib_2/async/stream_event_transformed_test.dart
+++ /dev/null
@@ -1,347 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-import 'event_helper.dart';
-
-class DecrementingTransformerSink implements EventSink {
-  final outSink;
-  DecrementingTransformerSink(this.outSink);
-
-  void add(dynamic i) => outSink.add(i - 1);
-  void addError(dynamic e, [st]) => outSink.addError(e - 1, st);
-  void close() => outSink.close();
-}
-
-class FutureWaitingTransformerSink implements EventSink {
-  final outSink;
-  final closeFuture;
-  FutureWaitingTransformerSink(this.outSink, this.closeFuture);
-
-  void add(dynamic future) {
-    future.then(outSink.add);
-  }
-
-  void addError(dynamic e, [st]) {
-    e.then((val) {
-      outSink.addError(val, st);
-    });
-  }
-
-  void close() {
-    closeFuture.whenComplete(outSink.close);
-  }
-}
-
-class ZoneTransformerSink implements EventSink {
-  final outSink;
-  ZoneTransformerSink(this.outSink);
-
-  void add(_) {
-    outSink.add(Zone.current);
-  }
-
-  void addError(_, [st]) {
-    outSink.add(Zone.current);
-  }
-
-  void close() {
-    outSink.add(Zone.current);
-    outSink.close();
-  }
-}
-
-class TypeChangingSink implements EventSink<int> {
-  final EventSink<String> outSink;
-  TypeChangingSink(this.outSink);
-
-  void add(int data) {
-    outSink.add(data.toString());
-  }
-
-  void addError(error, [st]) {
-    outSink.addError(error, st);
-  }
-
-  void close() {
-    outSink.close();
-  }
-}
-
-class SinkTransformer<S, T> extends StreamTransformerBase<S, T> {
-  final Function sinkMapper;
-  SinkTransformer(this.sinkMapper);
-
-  Stream<T> bind(Stream<S> stream) {
-    return new Stream<T>.eventTransformed(stream, sinkMapper);
-  }
-}
-
-get currentStackTrace {
-  try {
-    throw 0;
-  } catch (e, st) {
-    return st;
-  }
-}
-
-// In most cases the callback will be 'asyncEnd'. Errors are reported
-// asynchronously. We want to give them time to surface before reporting
-// asynchronous tests as done.
-void delayCycles(callback, int nbCycles) {
-  if (nbCycles == 0) {
-    callback();
-    return;
-  }
-  Timer.run(() {
-    delayCycles(callback, nbCycles - 1);
-  });
-}
-
-main() {
-  {
-    // Simple test: use the SinkTransformer (using the Stream.eventTransformed
-    // constructor) to transform a sequence of numbers. This is basically
-    // similar to a map.
-    asyncStart();
-    new Stream.fromIterable([1, 2, 3])
-        .transform(new SinkTransformer(
-            (sink) => new DecrementingTransformerSink(sink)))
-        .toList()
-        .then((list) {
-      Expect.listEquals([0, 1, 2], list);
-      asyncEnd();
-    });
-  }
-
-  {
-    // Similar test as above: but this time also transform errors. Also
-    // checks that the stack trace is correctly passed through.
-    asyncStart();
-    var controller;
-    var events = [];
-    var stackTrace = currentStackTrace;
-    controller = new StreamController(onListen: () {
-      controller.add(499);
-      controller.addError(42, stackTrace);
-      controller.close();
-    });
-    controller.stream
-        .transform(new SinkTransformer(
-            (sink) => new DecrementingTransformerSink(sink)))
-        .listen((data) {
-      events.add(data);
-    }, onError: (e, st) {
-      events.add(e);
-      events.add(st);
-    }, onDone: () {
-      Expect.listEquals([498, 41, stackTrace], events);
-      asyncEnd();
-    });
-  }
-
-  {
-    // Test that the output sink of the transformer can be used asynchronously.
-    asyncStart();
-    var controller;
-    var events = [];
-    var stackTrace = currentStackTrace;
-    var completer1 = new Completer();
-    var completer2 = new Completer();
-    var completer3 = new Completer();
-    var closeCompleter = new Completer();
-    controller = new StreamController(onListen: () {
-      controller.add(completer1.future);
-      controller.addError(completer2.future, stackTrace);
-      controller.add(completer3.future);
-      controller.close();
-    });
-    controller.stream
-        .transform(new SinkTransformer((sink) =>
-            new FutureWaitingTransformerSink(sink, closeCompleter.future)))
-        .listen((data) {
-      events.add(data);
-    }, onError: (e, st) {
-      events.add(e);
-      events.add(st);
-    }, onDone: () {
-      Expect.listEquals(["error2", stackTrace, "future3", "future1"], events);
-      asyncEnd();
-    });
-    Timer.run(() {
-      completer2.complete("error2");
-      Timer.run(() {
-        completer3.complete("future3");
-        Timer.run(() {
-          completer1.complete("future1");
-          scheduleMicrotask(closeCompleter.complete);
-        });
-      });
-    });
-  }
-
-  {
-    // Test that the output sink of the transformer can be used asynchronously
-    // and that events are paused if necessary.
-    asyncStart();
-    var controller;
-    var events = [];
-    var stackTrace = currentStackTrace;
-    var completer1 = new Completer.sync();
-    var completer2 = new Completer.sync();
-    var completer3 = new Completer.sync();
-    var closeCompleter = new Completer();
-    controller = new StreamController(onListen: () {
-      controller.add(completer1.future);
-      controller.addError(completer2.future, stackTrace);
-      controller.add(completer3.future);
-      controller.close();
-    });
-    var subscription;
-    completer1.future.then((_) {
-      Expect.isTrue(subscription.isPaused);
-    });
-    completer2.future.then((_) {
-      Expect.isTrue(subscription.isPaused);
-    });
-    completer3.future.then((_) {
-      Expect.isTrue(subscription.isPaused);
-    });
-    subscription = controller.stream
-        .transform(new SinkTransformer((sink) =>
-            new FutureWaitingTransformerSink(sink, closeCompleter.future)))
-        .listen((data) {
-      Expect.isFalse(subscription.isPaused);
-      events.add(data);
-    }, onError: (e, st) {
-      events.add(e);
-      events.add(st);
-    }, onDone: () {
-      Expect.listEquals(["error2", stackTrace, "future3", "future1"], events);
-      asyncEnd();
-    });
-    Timer.run(() {
-      subscription.pause();
-      completer2.complete("error2");
-      Timer.run(() {
-        subscription.resume();
-        Timer.run(() {
-          Expect.listEquals(["error2", stackTrace], events);
-          subscription.pause();
-          completer3.complete("future3");
-          Timer.run(() {
-            subscription.resume();
-            Timer.run(() {
-              Expect.listEquals(["error2", stackTrace, "future3"], events);
-              subscription.pause();
-              completer1.complete("future1");
-              subscription.resume();
-              scheduleMicrotask(closeCompleter.complete);
-            });
-          });
-        });
-      });
-    });
-  }
-
-  {
-    // Test that the output sink of the transformer reports errors when the
-    // stream is already closed.
-    asyncStart();
-    var controller;
-    var events = [];
-    var stackTrace = currentStackTrace;
-    var completer1 = new Completer();
-    var completer2 = new Completer();
-    var completer3 = new Completer();
-    var closeCompleter = new Completer();
-    controller = new StreamController(onListen: () {
-      controller.add(completer1.future);
-      controller.addError(completer2.future, stackTrace);
-      controller.add(completer3.future);
-      controller.close();
-    });
-
-    bool streamIsDone = false;
-    int errorCount = 0;
-    runZonedGuarded(() {
-      controller.stream
-          .transform(new SinkTransformer((sink) =>
-              new FutureWaitingTransformerSink(sink, closeCompleter.future)))
-          .listen((data) {
-        events.add(data);
-      }, onError: (e, st) {
-        events.add(e);
-        events.add(st);
-      }, onDone: () {
-        Expect.listEquals([], events);
-        streamIsDone = true;
-      });
-    }, (e, s) {
-      Expect.isTrue(e is StateError);
-      errorCount++;
-    });
-    closeCompleter.complete();
-    Timer.run(() {
-      Expect.isTrue(streamIsDone);
-      // Each of the delayed completions should trigger an unhandled error
-      // in the zone the stream was listened to.
-      Timer.run(() {
-        completer1.complete(499);
-      });
-      Timer.run(() {
-        completer2.complete(42);
-      });
-      Timer.run(() {
-        completer3.complete(99);
-      });
-      delayCycles(() {
-        Expect.equals(3, errorCount);
-        asyncEnd();
-      }, 5);
-    });
-  }
-
-  {
-    // Test that the transformer is executed in the zone it was listened to.
-    asyncStart();
-    var stackTrace = currentStackTrace;
-    var events = [];
-    var controller;
-    controller = new StreamController(onListen: () {
-      // Events are added outside the zone.
-      controller.add(499);
-      controller.addError(42, stackTrace);
-      controller.close();
-    });
-    Zone zone = Zone.current.fork();
-    var stream = controller.stream.transform(
-        new SinkTransformer((sink) => new ZoneTransformerSink(sink)));
-    zone.run(() {
-      stream.listen((data) {
-        events.add(data);
-      }, onDone: () {
-        Expect.listEquals([zone, zone, zone], events);
-        delayCycles(asyncEnd, 3);
-      });
-    });
-  }
-
-  {
-    // Just make sure that the generic types are correct everywhere.
-    asyncStart();
-    new Stream.fromIterable([1, 2, 3])
-        .transform(new SinkTransformer<int, String>(
-            (sink) => new TypeChangingSink(sink)))
-        .toList()
-        .then((list) {
-      Expect.listEquals(["1", "2", "3"], list);
-      asyncEnd();
-    });
-  }
-}
diff --git a/tests/lib_2/async/stream_first_where_test.dart b/tests/lib_2/async/stream_first_where_test.dart
deleted file mode 100644
index ec496a0e1b5..00000000000
--- a/tests/lib_2/async/stream_first_where_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library stream_controller_async_test;
-
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-class A {
-  const A();
-}
-
-class B extends A {
-  const B();
-}
-
-class C extends B {
-  const C();
-}
-
-main() {
-  asyncStart();
-  {
-    Stream<B> stream = new Stream<B>.fromIterable([new B()]);
-    A aFunc() => const A();
-    // Make sure that firstWhere does not allow you to return instances
-    // of types that are not subtypes of the generic type of the stream.
-    stream.firstWhere((x) => false, //# badType: compile-time error
-        orElse: aFunc); //          //# badType: continued
-  }
-  {
-    asyncStart();
-    C cFunc() => const C();
-    Stream<B> stream = new Stream<B>.fromIterable([new B()]);
-    // Make sure that firstWhere does allow you to return instances
-    // of types that are subtypes of the generic type of the stream.
-    stream.firstWhere((x) => false, orElse: cFunc).then((value) {
-      Expect.identical(const C(), value);
-      asyncEnd();
-    });
-  }
-  asyncEnd();
-}
diff --git a/tests/lib_2/async/stream_from_futures_test.dart b/tests/lib_2/async/stream_from_futures_test.dart
deleted file mode 100644
index 56442b2b8ea..00000000000
--- a/tests/lib_2/async/stream_from_futures_test.dart
+++ /dev/null
@@ -1,133 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-import 'package:async_helper/async_helper.dart';
-
-main() {
-  asyncStart();
-
-  testValues();
-  testErrors();
-  testMixed();
-  testOrdering();
-  testEmpty();
-  testPrecompleted();
-
-  asyncEnd();
-}
-
-void testValues() {
-  asyncStart();
-  var cs = new List.generate(3, (_) => new Completer());
-  var stream = new Stream.fromFutures(cs.map((x) => x.future));
-  var result = stream.toList();
-
-  result.then((list) {
-    Expect.listEquals([1, 2, 3], list);
-    asyncEnd();
-  });
-
-  cs[1].complete(1);
-  cs[2].complete(2);
-  cs[0].complete(3);
-}
-
-void testErrors() {
-  asyncStart();
-  var cs = new List.generate(3, (_) => new Completer());
-  var stream = new Stream.fromFutures(cs.map((x) => x.future));
-
-  int counter = 0;
-  stream.listen((_) {
-    Expect.fail("unexpected value");
-  }, onError: (e) {
-    Expect.equals(++counter, e);
-  }, onDone: () {
-    Expect.equals(3, counter);
-    asyncEnd();
-  });
-
-  cs[1].completeError(1);
-  cs[2].completeError(2);
-  cs[0].completeError(3);
-}
-
-void testMixed() {
-  asyncStart();
-  var cs = new List.generate(3, (_) => new Completer());
-  var stream = new Stream.fromFutures(cs.map((x) => x.future));
-
-  int counter = 0;
-  stream.listen((v) {
-    Expect.isTrue(counter == 0 || counter == 2);
-    Expect.equals(++counter, v);
-  }, onError: (e) {
-    Expect.equals(++counter, 2);
-    Expect.equals(2, e);
-  }, onDone: () {
-    Expect.equals(3, counter);
-    asyncEnd();
-  });
-
-  cs[1].complete(1);
-  cs[2].completeError(2);
-  cs[0].complete(3);
-}
-
-void testOrdering() {
-  // The output is in completion order, not affected by the input future order.
-  test(n1, n2, n3) {
-    asyncStart();
-    var cs = new List.generate(3, (_) => new Completer());
-    var stream = new Stream.fromFutures(cs.map((x) => x.future));
-    var result = stream.toList();
-
-    result.then((list) {
-      Expect.listEquals([1, 2, 3], list);
-      asyncEnd();
-    });
-
-    cs[n1].complete(1);
-    cs[n2].complete(2);
-    cs[n3].complete(3);
-  }
-
-  test(0, 1, 2);
-  test(0, 2, 1);
-  test(1, 0, 2);
-  test(1, 2, 0);
-  test(2, 0, 1);
-  test(2, 1, 0);
-}
-
-void testEmpty() {
-  asyncStart();
-  var stream = new Stream.fromFutures([]);
-
-  stream.listen((_) {
-    Expect.fail("unexpected value");
-  }, onError: (e) {
-    Expect.fail("unexpected error");
-  }, onDone: () {
-    asyncEnd();
-  });
-}
-
-void testPrecompleted() {
-  asyncStart();
-  var stream = new Stream.fromFutures(
-      new Iterable.generate(3, (v) => new Future.value(v + 1)));
-  var expected = new Set.from([1, 2, 3]);
-  stream.listen((v) {
-    Expect.isTrue(expected.contains(v));
-    expected.remove(v);
-  }, onDone: () {
-    Expect.isTrue(expected.isEmpty);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/stream_from_iterable_test.dart b/tests/lib_2/async/stream_from_iterable_test.dart
deleted file mode 100644
index 37ae173a988..00000000000
--- a/tests/lib_2/async/stream_from_iterable_test.dart
+++ /dev/null
@@ -1,269 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test Stream.fromIterable.
-
-import 'dart:async';
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_minitest.dart';
-
-import 'event_helper.dart';
-
-// Tests that various typed iterables that do not throw creates
-// suitable streams.
-void iterableTest<T>(Iterable<T> iterable) {
-  asyncStart();
-  List<T> expected = iterable.toList();
-  Stream<T> stream = new Stream<T>.fromIterable(iterable);
-  var events = <T>[];
-  stream.listen(events.add, onDone: () {
-    Expect.listEquals(expected, events, "fromIterable $iterable");
-    asyncEnd();
-  });
-}
-
-main() {
-  asyncStart();
-
-  iterableTest<Object>(<Object>[]);
-  iterableTest<Null>(<Null>[]);
-  iterableTest<Object>(<int>[1]);
-  iterableTest<Object>(<Object>[1, "two", true, null]);
-  iterableTest<int>(<int>[1, 2, 3, 4]);
-  iterableTest<String>(<String>["one", "two", "three", "four"]);
-  iterableTest<int>(new Iterable<int>.generate(1000, (i) => i));
-  iterableTest<String>(
-      new Iterable<int>.generate(1000, (i) => i).map((i) => "$i"));
-
-  Iterable<int> iter = new Iterable.generate(25, (i) => i * 2);
-
-  {
-    // Test that the stream's .toList works.
-    asyncStart();
-    new Stream.fromIterable(iter).toList().then((actual) {
-      List expected = iter.toList();
-      Expect.equals(25, expected.length);
-      Expect.listEquals(expected, actual);
-      asyncEnd();
-    });
-  }
-
-  {
-    // Test that the stream's .map works.
-    asyncStart();
-    new Stream.fromIterable(iter).map((i) => i * 3).toList().then((actual) {
-      List expected = iter.map((i) => i * 3).toList();
-      Expect.listEquals(expected, actual);
-      asyncEnd();
-    });
-  }
-
-  {
-    // Test that pause works.
-    asyncStart();
-    int ctr = 0;
-
-    var stream = new Stream<int>.fromIterable(iter.map((x) {
-      ctr++;
-      return x;
-    }));
-
-    StreamSubscription subscription;
-    var actual = [];
-    subscription = stream.listen((int value) {
-      actual.add(value);
-      // Do a 10 ms pause during the playback of the iterable.
-      Duration duration = const Duration(milliseconds: 10);
-      if (value == 20) {
-        asyncStart();
-        int beforeCtr = ctr;
-        subscription.pause(new Future.delayed(duration, () {}).whenComplete(() {
-          Expect.equals(beforeCtr, ctr);
-          asyncEnd();
-        }));
-      }
-    }, onDone: () {
-      Expect.listEquals(iter.toList(), actual);
-      asyncEnd();
-    });
-  }
-
-  {
-    asyncStart();
-    // Test that you can listen twice.
-    Stream stream = new Stream.fromIterable(iter);
-    stream.listen((x) {}).cancel();
-    stream.listen((x) {}).cancel(); // Doesn't throw.
-    Future.wait([stream.toList(), stream.toList()]).then((result) {
-      Expect.listEquals(iter.toList(), result[0]);
-      Expect.listEquals(iter.toList(), result[1]);
-      asyncEnd();
-    });
-  }
-
-  {
-    // Regression test for http://dartbug.com/14332.
-    // This should succeed.
-    var from = new Stream.fromIterable([1, 2, 3, 4, 5]);
-
-    var c = new StreamController();
-    var sink = c.sink;
-
-    asyncStart(2);
-
-    // if this goes first, test failed (hanged). Swapping addStream and toList
-    // made failure go away.
-    sink.addStream(from).then((_) {
-      c.close();
-      asyncEnd();
-    });
-
-    c.stream.toList().then((x) {
-      Expect.listEquals([1, 2, 3, 4, 5], x);
-      asyncEnd();
-    });
-  }
-
-  {
-    // Regression test for issue 14334 (#2)
-    var from = new Stream.fromIterable([1, 2, 3, 4, 5]);
-
-    // odd numbers as data events, even numbers as error events
-    from = from.map((x) => x.isOdd ? x : throw x);
-
-    var c = new StreamController();
-
-    asyncStart();
-
-    var data = [], errors = [];
-    c.stream.listen(data.add, onError: errors.add, onDone: () {
-      Expect.listEquals([1, 3, 5], data);
-      Expect.listEquals([2, 4], errors);
-      asyncEnd();
-    });
-    c.addStream(from).then((_) {
-      c.close();
-    });
-  }
-
-  {
-    // Example from issue http://dartbug.com/33431.
-    asyncStart();
-    var asyncStarStream = () async* {
-      yield 1;
-      yield 2;
-      throw "bad";
-    }();
-    collectEvents(asyncStarStream).then((events2) {
-      Expect.listEquals(["value", 1, "value", 2, "error", "bad"], events2);
-      asyncEnd();
-    });
-
-    Iterable<int> throwingIterable() sync* {
-      yield 1;
-      yield 2;
-      throw "bad";
-    }
-
-    // Sanity check behavior.
-    var it = throwingIterable().iterator;
-    Expect.isTrue(it.moveNext());
-    Expect.equals(1, it.current);
-    Expect.isTrue(it.moveNext());
-    Expect.equals(2, it.current);
-    Expect.throws(it.moveNext, (e) => e == "bad");
-
-    asyncStart();
-    var syncStarStream = new Stream<int>.fromIterable(throwingIterable());
-    collectEvents(syncStarStream).then((events1) {
-      Expect.listEquals(["value", 1, "value", 2, "error", "bad"], events1);
-      asyncEnd();
-    });
-  }
-
-  {
-    // Test error behavior. Changed when fixing issue 33431.
-    // Iterable where "current" throws for third value, moveNext on fifth call.
-    var m = new MockIterable<int>((n) {
-      return n != 5 || (throw "moveNext");
-    }, (n) {
-      return n != 3 ? n : throw "current";
-    });
-    asyncStart();
-    collectEvents(new Stream<int>.fromIterable(m)).then((events) {
-      // Error on "current" does not stop iteration.
-      // Error on "moveNext" does.
-      Expect.listEquals([
-        "value",
-        1,
-        "value",
-        2,
-        "error",
-        "current",
-        "value",
-        4,
-        "error",
-        "moveNext"
-      ], events);
-      asyncEnd();
-    });
-  }
-
-  asyncEnd();
-}
-
-// Collects value and error events in a list.
-// Value events preceded by "value", error events by "error".
-// Completes on done event.
-Future<List<Object>> collectEvents(Stream<Object> stream) {
-  var c = new Completer<List<Object>>();
-  var events = <Object>[];
-  stream.listen((value) {
-    events
-      ..add("value")
-      ..add(value);
-  }, onError: (error) {
-    events
-      ..add("error")
-      ..add(error);
-  }, onDone: () {
-    c.complete(events);
-  });
-  return c.future;
-}
-
-// Mock iterable.
-// A `MockIterable<T>(f1, f2)` calls `f1` on `moveNext` calls with incrementing
-// values starting from 1. Calls `f2` on `current` access, with the same integer
-// as the most recent `f1` call.
-class MockIterable<T> extends Iterable<T> {
-  final bool Function(int) _onMoveNext;
-  final T Function(int) _onCurrent;
-
-  MockIterable(this._onMoveNext, this._onCurrent);
-
-  Iterator<T> get iterator => MockIterator(_onMoveNext, _onCurrent);
-}
-
-class MockIterator<T> implements Iterator<T> {
-  final bool Function(int) _onMoveNext;
-  final T Function(int) _onCurrent;
-
-  int _counter = 0;
-
-  MockIterator(this._onMoveNext, this._onCurrent);
-
-  bool moveNext() {
-    _counter += 1;
-    return _onMoveNext(_counter);
-  }
-
-  T get current {
-    return _onCurrent(_counter);
-  }
-}
diff --git a/tests/lib_2/async/stream_iterator_double_cancel_test.dart b/tests/lib_2/async/stream_iterator_double_cancel_test.dart
deleted file mode 100644
index 6ae393530ad..00000000000
--- a/tests/lib_2/async/stream_iterator_double_cancel_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-Stream timedStream(int n) {
-  int i = 0;
-  StreamController controller;
-  tick() {
-    if (i >= n) {
-      controller.close();
-      return;
-    }
-    controller.add(i);
-    i++;
-    new Future.delayed(new Duration(milliseconds: 0), tick);
-  }
-
-  controller = new StreamController(onListen: tick);
-  return controller.stream;
-}
-
-void main() {
-  asyncStart();
-  StreamIterator iterator = new StreamIterator(timedStream(10));
-  helper(more) {
-    if (!more) {
-      // Canceling the already closed iterator should not lead to a crash.
-      iterator.cancel();
-      asyncEnd();
-    } else {
-      iterator.moveNext().then(helper);
-    }
-  }
-
-  iterator.moveNext().then(helper);
-}
diff --git a/tests/lib_2/async/stream_iterator_test.dart b/tests/lib_2/async/stream_iterator_test.dart
deleted file mode 100644
index 38b32771d7e..00000000000
--- a/tests/lib_2/async/stream_iterator_test.dart
+++ /dev/null
@@ -1,118 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-import 'package:async_helper/async_minitest.dart';
-
-main() {
-  test("stream iterator basic", () async {
-    var stream = createStream();
-    StreamIterator iterator = new StreamIterator(stream);
-    expect(iterator.current, isNull);
-    expect(await iterator.moveNext(), isTrue);
-    expect(iterator.current, 42);
-    expect(await iterator.moveNext(), isTrue);
-    expect(iterator.current, 37);
-    expect(await iterator.moveNext(), isFalse);
-    expect(iterator.current, isNull);
-    expect(await iterator.moveNext(), isFalse);
-  });
-
-  test("stream iterator prefilled", () async {
-    Stream stream = createStream();
-    StreamIterator iterator = new StreamIterator(stream);
-    await new Future.delayed(Duration.zero);
-    expect(iterator.current, isNull);
-    expect(await iterator.moveNext(), isTrue);
-    expect(iterator.current, 42);
-    expect(await iterator.moveNext(), isTrue);
-    expect(iterator.current, 37);
-    expect(await iterator.moveNext(), isFalse);
-    expect(iterator.current, isNull);
-    expect(await iterator.moveNext(), isFalse);
-  });
-
-  test("stream iterator error", () async {
-    Stream stream = createErrorStream();
-    StreamIterator iterator = new StreamIterator(stream);
-    expect(await iterator.moveNext(), isTrue);
-    expect(iterator.current, 42);
-    var hasNext = iterator.moveNext();
-    expect(hasNext, throwsA("BAD")); // This is an async expectation,
-    await hasNext.catchError((_) {}); // so we have to wait for the future too.
-    expect(iterator.current, isNull);
-    expect(await iterator.moveNext(), isFalse);
-    expect(iterator.current, isNull);
-  });
-
-  test("stream iterator current/moveNext during move", () async {
-    Stream stream = createStream();
-    StreamIterator iterator = new StreamIterator(stream);
-    var hasNext = iterator.moveNext();
-    expect(iterator.moveNext, throwsStateError);
-    expect(await hasNext, isTrue);
-    expect(iterator.current, 42);
-    iterator.cancel();
-  });
-
-  test("stream iterator error during cancel", () async {
-    Stream stream = createCancelErrorStream();
-    StreamIterator iterator = new StreamIterator(stream);
-    for (int i = 0; i < 10; i++) {
-      expect(await iterator.moveNext(), isTrue);
-      expect(iterator.current, i);
-    }
-    var hasNext = iterator.moveNext(); // active moveNext will be completed.
-    var cancel = iterator.cancel();
-    expect(cancel, throwsA("BAD"));
-    expect(await hasNext, isFalse);
-    expect(await iterator.moveNext(), isFalse);
-  });
-
-  test("regression 43799 (1)", () async {
-    // See: https://github.com/dart-lang/sdk/issues/43799
-    var badStream = StreamController<int>.broadcast(sync: true);
-    badStream.onListen = () {
-      badStream.add(1);
-      badStream.close();
-    };
-    var it = StreamIterator(badStream.stream);
-    expect(await it.moveNext(), false);
-  });
-
-  test("regression 43799 (2)", () async {
-    // See: https://github.com/dart-lang/sdk/issues/43799
-    var badStream = StreamController<int>.broadcast(sync: true);
-    badStream.onListen = () {
-      badStream.addError("bad");
-    };
-    var it = StreamIterator(badStream.stream);
-    expect(it.moveNext(), expectAsync(throwsA("bad")));
-  });
-}
-
-Stream createStream() async* {
-  yield 42;
-  yield 37;
-}
-
-Stream createErrorStream() async* {
-  yield 42;
-  // Emit an error without stopping the generator.
-  yield* (new Future.error("BAD").asStream());
-  yield 37;
-}
-
-/// Create a stream that throws when cancelled.
-Stream createCancelErrorStream() async* {
-  int i = 0;
-  try {
-    while (true) yield i++;
-  } finally {
-    throw "BAD";
-  }
-}
diff --git a/tests/lib_2/async/stream_join_test.dart b/tests/lib_2/async/stream_join_test.dart
deleted file mode 100644
index 2e5ded27a9c..00000000000
--- a/tests/lib_2/async/stream_join_test.dart
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test the basic StreamController and StreamController.singleSubscription.
-library stream_join_test;
-
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_minitest.dart';
-
-import 'event_helper.dart';
-
-main() {
-  test("join-empty", () {
-    StreamController c = new StreamController();
-    c.stream.join("X").then(expectAsync((String s) => expect(s, equals(""))));
-    c.close();
-  });
-
-  test("join-single", () {
-    StreamController c = new StreamController();
-    c.stream
-        .join("X")
-        .then(expectAsync((String s) => expect(s, equals("foo"))));
-    c.add("foo");
-    c.close();
-  });
-
-  test("join-three", () {
-    StreamController c = new StreamController();
-    c.stream
-        .join("X")
-        .then(expectAsync((String s) => expect(s, equals("fooXbarXbaz"))));
-    c.add("foo");
-    c.add("bar");
-    c.add("baz");
-    c.close();
-  });
-
-  test("join-three-non-string", () {
-    StreamController c = new StreamController();
-    c.stream
-        .join("X")
-        .then(expectAsync((String s) => expect(s, equals("fooXbarXbaz"))));
-    c.add(new Foo("foo"));
-    c.add(new Foo("bar"));
-    c.add(new Foo("baz"));
-    c.close();
-  });
-
-  test("join-error", () {
-    StreamController c = new StreamController();
-    c.stream
-        .join("X")
-        .catchError(expectAsync((String s) => expect(s, equals("BAD!"))));
-    c.add(new Foo("foo"));
-    c.add(new Foo("bar"));
-    c.add(new Bad());
-    c.add(new Foo("baz"));
-    c.close();
-  });
-}
-
-class Foo {
-  String value;
-  Foo(this.value);
-  String toString() => value;
-}
-
-class Bad {
-  Bad();
-  String toString() => throw "BAD!";
-}
diff --git a/tests/lib_2/async/stream_last_where_test.dart b/tests/lib_2/async/stream_last_where_test.dart
deleted file mode 100644
index 5100cf06855..00000000000
--- a/tests/lib_2/async/stream_last_where_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library stream_controller_async_test;
-
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-class A {
-  const A();
-}
-
-class B extends A {
-  const B();
-}
-
-class C extends B {
-  const C();
-}
-
-main() {
-  asyncStart();
-  {
-    Stream<B> stream = new Stream<B>.fromIterable([new B()]);
-    A aFunc() => const A();
-    // Make sure that lastWhere does not allow you to return instances
-    // of types that are not subtypes of the generic type of the stream.
-    stream.lastWhere((x) => false, //# badType: compile-time error
-        orElse: aFunc); //         //# badType: continued
-  }
-  {
-    asyncStart();
-    C cFunc() => const C();
-    Stream<B> stream = new Stream<B>.fromIterable([new B()]);
-    // Make sure that lastWhere does allow you to return instances
-    // of types that are subtypes of the generic type of the stream.
-    stream.lastWhere((x) => false, orElse: cFunc).then((value) {
-      Expect.identical(const C(), value);
-      asyncEnd();
-    });
-  }
-  asyncEnd();
-}
diff --git a/tests/lib_2/async/stream_listen_zone_test.dart b/tests/lib_2/async/stream_listen_zone_test.dart
deleted file mode 100644
index ff59f4680c7..00000000000
--- a/tests/lib_2/async/stream_listen_zone_test.dart
+++ /dev/null
@@ -1,153 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library stream_listen_zeno_test;
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-main() {
-  asyncStart();
-  var controller;
-  for (bool overrideDone in [false, true]) {
-    for (bool sync in [false, true]) {
-      var mode = "${sync ? "-sync" : ""}${overrideDone ? "-od": ""}";
-      controller = new StreamController(sync: sync);
-      testStream("SC$mode", controller, controller.stream, overrideDone);
-      controller = new StreamController.broadcast(sync: sync);
-      testStream("BSC$mode", controller, controller.stream, overrideDone);
-      controller = new StreamController(sync: sync);
-      testStream("SCAB$mode", controller, controller.stream.asBroadcastStream(),
-          overrideDone, 3);
-      controller = new StreamController(sync: sync);
-      testStream("SCMap$mode", controller, controller.stream.map((x) => x),
-          overrideDone, 3);
-    }
-  }
-  asyncEnd();
-}
-
-void testStream(
-    String name, StreamController controller, Stream stream, bool overrideDone,
-    [int registerExpect = 0]) {
-  asyncStart();
-  StreamSubscription sub;
-  Zone zone;
-  int registerCount = 0;
-  int callbackBits = 0;
-  int stepCount = 0;
-  Function step;
-  void nextStep() {
-    Zone.root.scheduleMicrotask(step);
-  }
-
-  runZoned(() {
-    zone = Zone.current;
-    sub = stream.listen((v) {
-      Expect.identical(zone, Zone.current, name);
-      Expect.equals(42, v, name);
-      callbackBits |= 1;
-      nextStep();
-    }, onError: (e, s) {
-      Expect.identical(zone, Zone.current, name);
-      Expect.equals("ERROR", e, name);
-      callbackBits |= 2;
-      nextStep();
-    }, onDone: () {
-      Expect.identical(zone, Zone.current, name);
-      if (overrideDone) throw "RUNNING WRONG ONDONE";
-      callbackBits |= 4;
-      nextStep();
-    });
-    registerExpect += 3;
-    Expect.equals(registerExpect, registerCount, name);
-  },
-      zoneSpecification: new ZoneSpecification(
-          registerCallback: <R>(self, p, z, R callback()) {
-        Expect.identical(zone, self, name);
-        registerCount++;
-        return () {
-          Expect.identical(zone, Zone.current, name);
-          return callback();
-        };
-      }, registerUnaryCallback: <R, T>(self, p, z, R callback(T a)) {
-        Expect.identical(zone, self, name);
-        registerCount++;
-        return (a) {
-          Expect.identical(zone, Zone.current, name);
-          return callback(a);
-        };
-      }, registerBinaryCallback:
-              <R, T1, T2>(self, package, z, R callback(T1 a, T2 b)) {
-        Expect.identical(zone, self, name);
-        registerCount++;
-        return (a, b) {
-          Expect.identical(zone, Zone.current, name);
-          return callback(a, b);
-        };
-      }));
-
-  int expectedBits = 0;
-  step = () {
-    var stepName = "$name-$stepCount";
-    Expect.identical(Zone.root, Zone.current, stepName);
-    Expect.equals(expectedBits, callbackBits, stepName);
-    switch (stepCount++) {
-      case 0:
-        expectedBits |= 1;
-        controller.add(42);
-        break;
-      case 1:
-        expectedBits |= 2;
-        controller.addError("ERROR", null);
-        break;
-      case 2:
-        Expect.equals(registerExpect, registerCount, stepName);
-        sub.onData((v) {
-          Expect.identical(zone, Zone.current, stepName);
-          Expect.equals(37, v);
-          callbackBits |= 8;
-          nextStep();
-        });
-        Expect.equals(++registerExpect, registerCount, stepName);
-        expectedBits |= 8;
-        controller.add(37);
-        break;
-      case 3:
-        Expect.equals(registerExpect, registerCount, stepName);
-        sub.onError((e, s) {
-          Expect.identical(zone, Zone.current);
-          Expect.equals("BAD", e);
-          callbackBits |= 16;
-          nextStep();
-        });
-        Expect.equals(++registerExpect, registerCount, stepName);
-        expectedBits |= 16;
-        controller.addError("BAD", null);
-        break;
-      case 4:
-        Expect.equals(registerExpect, registerCount, stepName);
-        if (overrideDone) {
-          sub.onDone(() {
-            Expect.identical(zone, Zone.current);
-            callbackBits |= 32;
-            nextStep();
-          });
-          registerExpect++;
-          expectedBits |= 32;
-        } else {
-          expectedBits |= 4;
-        }
-        Expect.equals(registerExpect, registerCount, stepName);
-        controller.close();
-        break;
-      case 5:
-        asyncEnd();
-    }
-  };
-  step();
-}
diff --git a/tests/lib_2/async/stream_multi_test.dart b/tests/lib_2/async/stream_multi_test.dart
deleted file mode 100644
index 413ed1d6626..00000000000
--- a/tests/lib_2/async/stream_multi_test.dart
+++ /dev/null
@@ -1,141 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-extension StreamRepeatLatestExtension<T> on Stream<T> {
-  Stream<T> repeatLatest() {
-    var done = false;
-    T latest = null;
-    var currentListeners = <MultiStreamController<T>>{};
-    this.listen((event) {
-      latest = event;
-      for (var listener in [...currentListeners]) listener.addSync(event);
-    }, onError: (Object error, StackTrace stack) {
-      for (var listener in [...currentListeners])
-        listener.addErrorSync(error, stack);
-    }, onDone: () {
-      done = true;
-      latest = null;
-      for (var listener in currentListeners) listener.closeSync();
-      currentListeners.clear();
-    });
-    return Stream.multi((controller) {
-      if (done) {
-        controller.close();
-        return;
-      }
-      currentListeners.add(controller);
-      if (latest != null) controller.add(latest);
-      controller.onCancel = () {
-        currentListeners.remove(controller);
-      };
-    });
-  }
-}
-
-void main() {
-  asyncStart();
-  testStreamsIndependent();
-  asyncTest(testStreamNonOverlap);
-  asyncTest(testRepeatLatest);
-  asyncEnd();
-}
-
-/// Test that the streams can provide different events.
-void testStreamsIndependent() {
-  var log = <String>[];
-  var index = 0;
-  var multi = Stream<List<int>>.multi((c) {
-    var id = ++index;
-    log.add("$id");
-    for (var i = 0; i < id + 1; i++) {
-      c.add([id, i]);
-    }
-    c.close();
-  });
-  void logList(List<int> l) {
-    log.add("${l.first}-${l.last}");
-  }
-
-  asyncStart();
-  Future.wait([multi.forEach(logList), multi.forEach(logList)])
-      .whenComplete(() {
-    Expect.equals(7, log.length);
-    for (var element in ["1", "1-0", "1-1", "2", "2-0", "2-1", "2-2"]) {
-      Expect.isTrue(log.contains(element));
-    }
-    asyncEnd();
-  });
-}
-
-/// Test that stream can be listened to again after having no listener.
-Future<void> testStreamNonOverlap() async {
-  var completer = Completer<Object>();
-  MultiStreamController<int> controller;
-  var stream = Stream<int>.multi((c) {
-    controller = c;
-    c.onCancel = () {
-      controller = null;
-      if (!completer.isCompleted) completer.complete(null);
-    };
-  });
-  for (var i in [1, 2, 3]) {
-    var log = <Object>[];
-    var subscription = stream.listen((v) {
-      log.add(v);
-      if (!completer.isCompleted) completer.complete(v);
-    }, onError: (e, s) {
-      log.add(e);
-      if (!completer.isCompleted) completer.complete(e);
-    }, onDone: () {
-      log.add(null);
-      if (!completer.isCompleted) completer.complete(null);
-    });
-    Expect.isNotNull(controller);
-    controller.add(1);
-    await completer.future;
-    Expect.listEquals([1], log);
-
-    completer = Completer();
-    controller.add(2);
-    await completer.future;
-    Expect.listEquals([1, 2], log);
-
-    completer = Completer();
-    if (i == 2) {
-      subscription.cancel();
-    } else {
-      controller.close();
-    }
-    await completer.future;
-    Expect.listEquals([1, 2, if (i != 2) null], log);
-  }
-}
-
-/// Test that the [Stream.repeatLatest] example code works as described.
-Future<void> testRepeatLatest() async {
-  var c = StreamController<int>();
-  var repStream = c.stream.repeatLatest();
-
-  var f1 = repStream.first;
-  c.add(1);
-  var v1 = await f1;
-  Expect.equals(1, v1);
-
-  var f2 = repStream.take(2).toList();
-  c.add(2);
-  var l2 = await f2;
-  Expect.listEquals([1, 2], l2);
-
-  var f3 = repStream.take(2).toList();
-  c.add(3);
-  var l3 = await f3;
-  Expect.listEquals([2, 3], l3);
-}
diff --git a/tests/lib_2/async/stream_periodic2_test.dart b/tests/lib_2/async/stream_periodic2_test.dart
deleted file mode 100644
index d0d9ed97cfd..00000000000
--- a/tests/lib_2/async/stream_periodic2_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test merging streams.
-library dart.test.stream_from_iterable;
-
-import 'dart:async';
-
-import 'package:async_helper/async_minitest.dart';
-
-main() {
-  test("stream-periodic2", () {
-    Stream stream =
-        new Stream.periodic(const Duration(milliseconds: 1), (x) => x);
-    int receivedCount = 0;
-    var subscription;
-    subscription = stream.listen(expectAsync((data) {
-      expect(data, receivedCount);
-      receivedCount++;
-      if (receivedCount == 5) subscription.cancel();
-    }, count: 5));
-  });
-}
diff --git a/tests/lib_2/async/stream_periodic3_test.dart b/tests/lib_2/async/stream_periodic3_test.dart
deleted file mode 100644
index 7e0f3fda684..00000000000
--- a/tests/lib_2/async/stream_periodic3_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test merging streams.
-library dart.test.stream_from_iterable;
-
-import 'dart:async';
-
-import 'package:async_helper/async_minitest.dart';
-
-// The stopwatch is more precise than the Timer.
-// Some browsers (Firefox and IE so far) can trigger too early. So we add more
-// margin. We use identical(1, 1.0) as an easy way to know if the test is
-// compiled by dart2js.
-int get safetyMargin => identical(1, 1.0) ? 5 : 0;
-
-main() {
-  test("stream-periodic3", () {
-    Stopwatch watch = new Stopwatch()..start();
-    Stream stream =
-        new Stream.periodic(const Duration(milliseconds: 1), (x) => x);
-    stream.take(10).listen((_) {}, onDone: expectAsync(() {
-      int millis = watch.elapsedMilliseconds + safetyMargin;
-      expect(millis, greaterThanOrEqualTo(10));
-    }));
-  });
-}
diff --git a/tests/lib_2/async/stream_periodic4_test.dart b/tests/lib_2/async/stream_periodic4_test.dart
deleted file mode 100644
index 5471b34446a..00000000000
--- a/tests/lib_2/async/stream_periodic4_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test merging streams.
-library dart.test.stream_from_iterable;
-
-import 'dart:async';
-
-import 'package:async_helper/async_minitest.dart';
-
-void runTest(period, maxElapsed, pauseDuration) {
-  Function done = expectAsync(() {});
-
-  Stopwatch watch = new Stopwatch()..start();
-  Stream stream = new Stream.periodic(period, (x) => x);
-  var subscription;
-  subscription = stream.take(5).listen((i) {
-    if (watch.elapsed > maxElapsed) {
-      // Test failed in this configuration. Try with more time (or give up
-      // if we reached an unreasonable maxElapsed).
-      if (maxElapsed > const Duration(seconds: 2)) {
-        // Give up.
-        expect(true, false);
-      } else {
-        subscription.cancel();
-        // Call 'done' ourself, since it won't be invoked in the onDone handler.
-        runTest(period * 2, maxElapsed * 2, pauseDuration * 2);
-        done();
-        return;
-      }
-    }
-    watch.reset();
-    if (i == 2) {
-      subscription.pause();
-      watch.stop();
-      new Timer(pauseDuration, () {
-        watch.start();
-        subscription.resume();
-      });
-    }
-  }, onDone: done);
-}
-
-main() {
-  test("stream-periodic4", () {
-    runTest(const Duration(milliseconds: 2), const Duration(milliseconds: 8),
-        const Duration(milliseconds: 10));
-  });
-}
diff --git a/tests/lib_2/async/stream_periodic5_test.dart b/tests/lib_2/async/stream_periodic5_test.dart
deleted file mode 100644
index 16148bcf4a1..00000000000
--- a/tests/lib_2/async/stream_periodic5_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test merging streams.
-library dart.test.stream_from_iterable;
-
-import 'dart:async';
-
-import 'package:async_helper/async_minitest.dart';
-
-watchMs(Stopwatch watch) {
-  int microsecs = watch.elapsedMicroseconds;
-  // Give it some slack. The Stopwatch is more precise than the timers. This
-  // means that we sometimes get 3995 microseconds instead of 4+ milliseconds.
-  // 200 microseconds should largely account for this discrepancy.
-  return (microsecs + 200) ~/ 1000;
-}
-
-main() {
-  test("stream-periodic4", () {
-    Stream stream =
-        new Stream.periodic(const Duration(milliseconds: 5), (x) => x);
-    Stopwatch watch = new Stopwatch()..start();
-    var subscription;
-    subscription = stream.take(10).listen((i) {
-      int ms = watchMs(watch);
-      watch.reset();
-      if (i == 2) {
-        Stopwatch watch2 = new Stopwatch()..start();
-        // Busy wait.
-        while (watch2.elapsedMilliseconds < 15) {}
-        // Make sure the stream can be paused when it has overdue events.
-        // We just busy waited for 15ms, even though the stream is supposed to
-        // emit events every 5ms.
-        subscription.pause();
-        watch.stop();
-        new Timer(const Duration(milliseconds: 150), () {
-          watch.start();
-          subscription.resume();
-        });
-      }
-    }, onDone: expectAsync(() {}));
-  });
-}
diff --git a/tests/lib_2/async/stream_periodic6_test.dart b/tests/lib_2/async/stream_periodic6_test.dart
deleted file mode 100644
index 6c1f42ee4ec..00000000000
--- a/tests/lib_2/async/stream_periodic6_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test merging streams.
-library dart.test.stream_from_iterable;
-
-import 'dart:async';
-
-import 'package:async_helper/async_minitest.dart';
-
-main() {
-  test("stream-periodic1", () {
-    Stream stream = new Stream.periodic(const Duration(milliseconds: 1), (i) {
-      if (i == 3) throw 42;
-      return i;
-    });
-    int expected = 0;
-    var subscription;
-    subscription = stream.listen(
-        expectAsync((data) {
-          expect(data, expected++);
-          if (expected == 5) subscription.cancel();
-        }, count: 4), onError: expectAsync((e, s) {
-      expect(e, 42);
-      expected++;
-    }));
-  });
-}
diff --git a/tests/lib_2/async/stream_periodic_test.dart b/tests/lib_2/async/stream_periodic_test.dart
deleted file mode 100644
index 554c802b473..00000000000
--- a/tests/lib_2/async/stream_periodic_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test merging streams.
-library dart.test.stream_from_iterable;
-
-import 'dart:async';
-
-import 'package:async_helper/async_minitest.dart';
-
-main() {
-  test("stream-periodic1", () {
-    Stream stream = new Stream.periodic(const Duration(milliseconds: 1));
-    int receivedCount = 0;
-    var subscription;
-    subscription = stream.listen(expectAsync((data) {
-      expect(data, isNull);
-      receivedCount++;
-      if (receivedCount == 5) {
-        var future = subscription.cancel();
-        expect(future, completes);
-      }
-    }, count: 5));
-  });
-}
diff --git a/tests/lib_2/async/stream_single_test.dart b/tests/lib_2/async/stream_single_test.dart
deleted file mode 100644
index 3d943d849b1..00000000000
--- a/tests/lib_2/async/stream_single_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test the Stream.single method.
-library stream_single_test;
-
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_minitest.dart';
-
-import 'event_helper.dart';
-
-main() {
-  test("single", () {
-    StreamController c = new StreamController(sync: true);
-    Future f = c.stream.single;
-    f.then(expectAsync((v) {
-      Expect.equals(42, v);
-    }));
-    new Events.fromIterable([42]).replay(c);
-  });
-
-  test("single empty", () {
-    StreamController c = new StreamController(sync: true);
-    Future f = c.stream.single;
-    f.catchError(expectAsync((error) {
-      Expect.isTrue(error is StateError);
-    }));
-    new Events.fromIterable([]).replay(c);
-  });
-
-  test("single error", () {
-    StreamController c = new StreamController(sync: true);
-    Future f = c.stream.single;
-    f.catchError(expectAsync((error) {
-      Expect.equals("error", error);
-    }));
-    Events errorEvents = new Events()
-      ..error("error")
-      ..close();
-    errorEvents.replay(c);
-  });
-
-  test("single error 2", () {
-    StreamController c = new StreamController(sync: true);
-    Future f = c.stream.single;
-    f.catchError(expectAsync((error) {
-      Expect.equals("error", error);
-    }));
-    Events errorEvents = new Events()
-      ..error("error")
-      ..error("error2")
-      ..close();
-    errorEvents.replay(c);
-  });
-
-  test("single error 3", () {
-    StreamController c = new StreamController(sync: true);
-    Future f = c.stream.single;
-    f.catchError(expectAsync((error) {
-      Expect.equals("error", error);
-    }));
-    Events errorEvents = new Events()
-      ..add(499)
-      ..error("error")
-      ..close();
-    errorEvents.replay(c);
-  });
-}
diff --git a/tests/lib_2/async/stream_single_to_multi_subscriber_test.dart b/tests/lib_2/async/stream_single_to_multi_subscriber_test.dart
deleted file mode 100644
index db68a582e58..00000000000
--- a/tests/lib_2/async/stream_single_to_multi_subscriber_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test the basic StreamController and StreamController.singleSubscription.
-library stream_single_test;
-
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_minitest.dart';
-
-import 'event_helper.dart';
-
-main() {
-  test("tomulti 1", () {
-    StreamController c = new StreamController<int>(sync: true);
-    Stream<int> multi = c.stream.asBroadcastStream();
-    // Listen twice.
-    multi.listen(expectAsync((v) => Expect.equals(42, v)));
-    multi.listen(expectAsync((v) => Expect.equals(42, v)));
-    c.add(42);
-  });
-
-  test("tomulti 2", () {
-    StreamController c = new StreamController<int>(sync: true);
-    Stream<int> multi = c.stream.asBroadcastStream();
-    Events expected = new Events.fromIterable([1, 2, 3, 4, 5]);
-    Events actual1 = new Events.capture(multi);
-    Events actual2 = new Events.capture(multi);
-    actual1.onDone(expectAsync(() {
-      Expect.listEquals(expected.events, actual1.events);
-    }));
-    actual2.onDone(expectAsync(() {
-      Expect.listEquals(expected.events, actual2.events);
-    }));
-    expected.replay(c);
-  });
-
-  test("tomulti no-op", () {
-    StreamController c = new StreamController<int>(sync: true);
-    Stream<int> multi = c.stream.asBroadcastStream();
-    Events expected = new Events.fromIterable([1, 2, 3, 4, 5]);
-    Events actual1 = new Events.capture(multi);
-    Events actual2 = new Events.capture(multi);
-    actual1.onDone(expectAsync(() {
-      Expect.listEquals(expected.events, actual1.events);
-    }));
-    actual2.onDone(expectAsync(() {
-      Expect.listEquals(expected.events, actual2.events);
-    }));
-    expected.replay(c);
-  });
-}
diff --git a/tests/lib_2/async/stream_state_helper.dart b/tests/lib_2/async/stream_state_helper.dart
deleted file mode 100644
index 131c0585b38..00000000000
--- a/tests/lib_2/async/stream_state_helper.dart
+++ /dev/null
@@ -1,608 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library stream_state_helper;
-
-import 'dart:async';
-import 'dart:collection';
-
-import 'package:async_helper/async_minitest.dart';
-
-class SubscriptionProtocolTest {
-  final StreamProtocolTest _streamTest;
-  final int id;
-  StreamSubscription _subscription;
-
-  SubscriptionProtocolTest(this.id, this._subscription, this._streamTest);
-
-  void pause([Future resumeSignal]) {
-    if (_subscription == null) throw new StateError("Not subscribed");
-    _subscription.pause(resumeSignal);
-  }
-
-  void resume() {
-    if (_subscription == null) throw new StateError("Not subscribed");
-    _subscription.resume();
-  }
-
-  void cancel() {
-    if (_subscription == null) throw new StateError("Not subscribed");
-    _subscription.cancel();
-    _subscription = null;
-  }
-
-  void expectData(var data, [void action()]) {
-    _streamTest._expectData(this, data, action);
-  }
-
-  void expectError(var error, [void action()]) {
-    _streamTest._expectError(this, error, action);
-  }
-
-  void expectDone([void action()]) {
-    _streamTest._expectDone(this, action);
-  }
-}
-
-class StreamProtocolTest {
-  bool trace = false;
-  final bool isBroadcast;
-  final bool isAsBroadcast;
-  StreamController _controller;
-  Stream _controllerStream;
-  // Most recent subscription created. Used as default for pause/resume.
-  SubscriptionProtocolTest _latestSubscription;
-  List<Event> _expectations = <Event>[];
-  int _nextExpectationIndex = 0;
-  int _subscriptionIdCounter = 0;
-  Function _onComplete;
-
-  StreamProtocolTest.broadcast({bool sync: false})
-      : isBroadcast = true,
-        isAsBroadcast = false {
-    _controller = new StreamController.broadcast(
-        sync: sync, onListen: _onListen, onCancel: _onCancel);
-    _controllerStream = _controller.stream;
-    _onComplete = expectAsync(() {
-      _onComplete = null; // Being null marks the test as being complete.
-    });
-  }
-
-  StreamProtocolTest({bool sync: false})
-      : isBroadcast = false,
-        isAsBroadcast = false {
-    _controller = new StreamController(
-        sync: sync,
-        onListen: _onListen,
-        onPause: _onPause,
-        onResume: _onResume,
-        onCancel: _onCancel);
-    _controllerStream = _controller.stream;
-    _onComplete = expectAsync(() {
-      _onComplete = null; // Being null marks the test as being complete.
-    });
-  }
-
-  StreamProtocolTest.asBroadcast({bool sync: false})
-      : isBroadcast = false,
-        isAsBroadcast = true {
-    _controller = new StreamController(
-        sync: sync,
-        onListen: _onListen,
-        onPause: _onPause,
-        onResume: _onResume,
-        onCancel: _onCancel);
-    _controllerStream = _controller.stream.asBroadcastStream(
-        onListen: _onBroadcastListen, onCancel: _onBroadcastCancel);
-    _onComplete = expectAsync(() {
-      _onComplete = null; // Being null marks the test as being complete.
-    });
-  }
-
-  // Actions on the stream and controller.
-  void add(var data) {
-    _controller.add(data);
-  }
-
-  void error(var error) {
-    _controller.addError(error);
-  }
-
-  void close() {
-    _controller.close();
-  }
-
-  SubscriptionProtocolTest listen({bool cancelOnError: false}) {
-    int subscriptionId = _subscriptionIdCounter++;
-
-    StreamSubscription subscription = _controllerStream.listen((var data) {
-      _onData(subscriptionId, data);
-    }, onError: (Object error) {
-      _onError(subscriptionId, error);
-    }, onDone: () {
-      _onDone(subscriptionId);
-    }, cancelOnError: cancelOnError);
-    _latestSubscription =
-        new SubscriptionProtocolTest(subscriptionId, subscription, this);
-    if (trace) {
-      print("[Listen #$subscriptionId(#${_latestSubscription.hashCode})]");
-    }
-    return _latestSubscription;
-  }
-
-  // Actions on the most recently created subscription.
-  void pause([Future resumeSignal]) {
-    _latestSubscription.pause(resumeSignal);
-  }
-
-  void resume() {
-    _latestSubscription.resume();
-  }
-
-  void cancel() {
-    _latestSubscription.cancel();
-    _latestSubscription = null;
-  }
-
-  // End the test now. There must be no open expectations, and no further
-  // expectations will be allowed.
-  // Called automatically by an onCancel event on a non-broadcast stream.
-  void terminate() {
-    if (_nextExpectationIndex != _expectations.length) {
-      _withNextExpectation((Event expect) {
-        _fail("Expected: $expect\n"
-            "Found   : Early termination.\n${expect._stackTrace}");
-      });
-    }
-    _onComplete();
-  }
-
-  // Handling of stream events.
-  void _onData(int id, var data) {
-    if (trace) print("[Data#$id : $data]");
-    _withNextExpectation((Event expect) {
-      if (!expect.matchData(id, data)) {
-        _fail("Expected: $expect\n"
-            "Found   : [Data#$id: $data]\n${expect._stackTrace}");
-      }
-    });
-  }
-
-  void _onError(int id, Object error) {
-    if (trace) print("[Error#$id : $error]");
-    _withNextExpectation((Event expect) {
-      if (!expect.matchError(id, error)) {
-        _fail("Expected: $expect\n"
-            "Found   : [Error#$id: ${error}]\n${expect._stackTrace}");
-      }
-    });
-  }
-
-  void _onDone(int id) {
-    if (trace) print("[Done#$id]");
-    _withNextExpectation((Event expect) {
-      if (!expect.matchDone(id)) {
-        _fail("Expected: $expect\n"
-            "Found   : [Done#$id]\n${expect._stackTrace}");
-      }
-    });
-  }
-
-  void _onPause() {
-    if (trace) print("[Pause]");
-    _withNextExpectation((Event expect) {
-      if (!expect.matchPause()) {
-        _fail("Expected: $expect\n"
-            "Found   : [Paused]\n${expect._stackTrace}");
-      }
-    });
-  }
-
-  void _onResume() {
-    if (trace) print("[Resumed]");
-    _withNextExpectation((Event expect) {
-      if (!expect.matchResume()) {
-        _fail("Expected: $expect\n"
-            "Found   : [Resumed]\n${expect._stackTrace}");
-      }
-    });
-  }
-
-  void _onListen() {
-    if (trace) print("[Subscribed]");
-    _withNextExpectation((Event expect) {
-      if (!expect.matchSubscribe()) {
-        _fail("Expected: $expect\n"
-            "Found: [Subscribed]\n${expect._stackTrace}");
-      }
-    });
-  }
-
-  void _onCancel() {
-    if (trace) print("[Cancelled]");
-    _withNextExpectation((Event expect) {
-      if (!expect.matchCancel()) {
-        _fail("Expected: $expect\n"
-            "Found: [Cancelled]\n${expect._stackTrace}");
-      }
-    });
-  }
-
-  void _onBroadcastListen(StreamSubscription sub) {
-    if (trace) print("[BroadcastListen]");
-    _withNextExpectation((Event expect) {
-      if (!expect.matchBroadcastListen(sub)) {
-        _fail("Expected: $expect\n"
-            "Found: [BroadcastListen]\n${expect._stackTrace}");
-      }
-    });
-  }
-
-  void _onBroadcastCancel(StreamSubscription sub) {
-    if (trace) print("[BroadcastCancel]");
-    _withNextExpectation((Event expect) {
-      if (!expect.matchBroadcastCancel(sub)) {
-        _fail("Expected: $expect\n"
-            "Found: [BroadcastCancel]\n${expect._stackTrace}");
-      }
-    });
-  }
-
-  void _withNextExpectation(void action(Event expect)) {
-    if (_nextExpectationIndex == _expectations.length) {
-      _nextExpectationIndex++;
-      action(new MismatchEvent());
-    } else {
-      Event next = _expectations[_nextExpectationIndex++];
-      action(next);
-    }
-  }
-
-  // Adds _expectations.
-  void expectAny([void action()]) {
-    if (_onComplete == null) {
-      _fail("Adding expectation after completing");
-    }
-    _expectations.add(new LogAnyEvent(action));
-  }
-
-  void expectData(var data, [void action()]) {
-    _expectData(null, data, action);
-  }
-
-  void _expectData(SubscriptionProtocolTest sub, var data, void action()) {
-    if (_onComplete == null) {
-      _fail("Adding expectation after completing");
-    }
-    _expectations.add(new DataEvent(sub, data, action));
-  }
-
-  void expectError(var error, [void action()]) {
-    _expectError(null, error, action);
-  }
-
-  void _expectError(SubscriptionProtocolTest sub, var error, void action()) {
-    if (_onComplete == null) {
-      _fail("Adding expectation after completing");
-    }
-    _expectations.add(new ErrorEvent(sub, error, action));
-  }
-
-  void expectDone([void action()]) {
-    _expectDone(null, action);
-  }
-
-  void _expectDone(SubscriptionProtocolTest sub, [void action()]) {
-    if (_onComplete == null) {
-      _fail("Adding expectation after completing");
-    }
-    _expectations.add(new DoneEvent(sub, action));
-  }
-
-  void expectPause([void action()]) {
-    if (_onComplete == null) {
-      _fail("Adding expectation after completing");
-    }
-    _expectations.add(new PauseCallbackEvent(action));
-  }
-
-  void expectResume([void action()]) {
-    if (_onComplete == null) {
-      _fail("Adding expectation after completing");
-    }
-    _expectations.add(new ResumeCallbackEvent(action));
-  }
-
-  void expectListen([void action()]) {
-    if (_onComplete == null) {
-      _fail("Adding expectation after completing");
-    }
-    _expectations.add(new SubscriptionCallbackEvent(action));
-  }
-
-  void expectCancel([void action()]) {
-    if (_onComplete == null) {
-      _fail("Adding expectation after completing");
-    }
-    _expectations.add(new CancelCallbackEvent(action));
-  }
-
-  void expectBroadcastListen([void action(StreamSubscription sub)]) {
-    if (_onComplete == null) {
-      _fail("Adding expectation after completing");
-    }
-    if (!isAsBroadcast) throw new StateError("Not an asBroadcast stream");
-    _expectations.add(new BroadcastListenCallbackEvent(action));
-  }
-
-  void expectBroadcastCancel([void action(StreamSubscription sub)]) {
-    if (_onComplete == null) {
-      _fail("Adding expectation after completing");
-    }
-    if (!isAsBroadcast) throw new StateError("Not an asBroadcast stream");
-    _expectations.add(new BroadcastCancelCallbackEvent(action));
-  }
-
-  void expectBroadcastListenOpt([void action(StreamSubscription sub)]) {
-    if (_onComplete == null) {
-      _fail("Adding expectation after completing");
-    }
-    if (!isAsBroadcast) return;
-    _expectations.add(new BroadcastListenCallbackEvent(action));
-  }
-
-  void expectBroadcastCancelOpt([void action(StreamSubscription sub)]) {
-    if (_onComplete == null) {
-      _fail("Adding expectation after completing");
-    }
-    if (!isAsBroadcast) return;
-    _expectations.add(new BroadcastCancelCallbackEvent(action));
-  }
-
-  void _fail(String message) {
-    if (_nextExpectationIndex == 0) {
-      throw "Unexpected event:\n$message\nNo earlier events matched.";
-    }
-    StringBuffer buf = new StringBuffer();
-    for (int i = 0; i < _expectations.length; i++) {
-      if (i == _nextExpectationIndex - 1) {
-        buf.write("->");
-      } else {
-        buf.write("  ");
-      }
-      buf.write(_expectations[i]);
-      buf.write("\n");
-    }
-    throw "Unexpected event:\n$message\nAll expectations:\n$buf";
-  }
-}
-
-class Event {
-  Function _action;
-  StackTrace _stackTrace;
-  Event(void action())
-      : _action = (action == null) ? null : expectAsync(action) {
-    try {
-      throw 0;
-    } catch (_, s) {
-      _stackTrace = s;
-    }
-  }
-  Event.broadcast(void action(StreamSubscription sub))
-      : _action = (action == null) ? null : expectAsync(action) {
-    try {
-      throw 0;
-    } catch (_, s) {
-      _stackTrace = s;
-    }
-  }
-
-  bool matchData(int id, var data) {
-    return false;
-  }
-
-  bool matchError(int id, e) {
-    return false;
-  }
-
-  bool matchDone(int id) {
-    return false;
-  }
-
-  bool matchPause() {
-    if (!_testPause()) return false;
-    if (_action != null) _action();
-    return true;
-  }
-
-  bool matchResume() {
-    if (!_testResume()) return false;
-    if (_action != null) _action();
-    return true;
-  }
-
-  bool matchSubscribe() {
-    if (!_testSubscribe()) return false;
-    if (_action != null) _action();
-    return true;
-  }
-
-  bool matchCancel() {
-    if (!_testCancel()) return false;
-    if (_action != null) _action();
-    return true;
-  }
-
-  bool matchBroadcastListen(StreamSubscription sub) {
-    if (!_testBroadcastListen()) return false;
-    if (_action != null) _action(sub);
-    return true;
-  }
-
-  bool matchBroadcastCancel(StreamSubscription sub) {
-    if (!_testBroadcastCancel()) return false;
-    if (_action != null) _action(sub);
-    return true;
-  }
-
-  bool _testData(_) => false;
-  bool _testError(_) => false;
-  bool _testDone() => false;
-  bool _testPause() => false;
-  bool _testResume() => false;
-  bool _testSubscribe() => false;
-  bool _testCancel() => false;
-  bool _testBroadcastListen() => false;
-  bool _testBroadcastCancel() => false;
-}
-
-class SubscriptionEvent extends Event {
-  SubscriptionProtocolTest subscription;
-  SubscriptionEvent(this.subscription, void action()) : super(action);
-
-  bool matchData(int id, var data) {
-    if (subscription != null && subscription.id != id) return false;
-    if (!_testData(data)) return false;
-    if (_action != null) _action();
-    return true;
-  }
-
-  bool matchError(int id, e) {
-    if (subscription != null && subscription.id != id) return false;
-    if (!_testError(e)) return false;
-    if (_action != null) _action();
-    return true;
-  }
-
-  bool matchDone(int id) {
-    if (subscription != null && subscription.id != id) return false;
-    if (!_testDone()) return false;
-    if (_action != null) _action();
-    return true;
-  }
-
-  String get _id => (subscription == null) ? "" : "#${subscription.id}";
-}
-
-class MismatchEvent extends Event {
-  MismatchEvent() : super(null);
-  toString() => "[No event expected]";
-}
-
-class DataEvent extends SubscriptionEvent {
-  final data;
-  DataEvent(SubscriptionProtocolTest sub, this.data, void action())
-      : super(sub, action);
-  bool _testData(var data) => this.data == data;
-  String toString() => "[Data$_id: $data]";
-}
-
-class ErrorEvent extends SubscriptionEvent {
-  final error;
-  ErrorEvent(SubscriptionProtocolTest sub, this.error, void action())
-      : super(sub, action);
-  bool _testError(error) => this.error == error;
-  String toString() => "[Error$_id: $error]";
-}
-
-class DoneEvent extends SubscriptionEvent {
-  DoneEvent(SubscriptionProtocolTest sub, void action()) : super(sub, action);
-  bool _testDone() => true;
-  String toString() => "[Done$_id]";
-}
-
-class PauseCallbackEvent extends Event {
-  PauseCallbackEvent(void action()) : super(action);
-  bool _testPause() => true;
-  String toString() => "[Paused]";
-}
-
-class ResumeCallbackEvent extends Event {
-  ResumeCallbackEvent(void action()) : super(action);
-  bool _testResume() => true;
-  String toString() => "[Resumed]";
-}
-
-class SubscriptionCallbackEvent extends Event {
-  SubscriptionCallbackEvent(void action()) : super(action);
-  bool _testSubscribe() => true;
-  String toString() => "[Subscribed]";
-}
-
-class CancelCallbackEvent extends Event {
-  CancelCallbackEvent(void action()) : super(action);
-  bool _testCancel() => true;
-  String toString() => "[Cancelled]";
-}
-
-class BroadcastCancelCallbackEvent extends Event {
-  BroadcastCancelCallbackEvent(void action(StreamSubscription sub))
-      : super.broadcast(action);
-  bool _testBroadcastCancel() => true;
-  String toString() => "[BroadcastCancel]";
-}
-
-class BroadcastListenCallbackEvent extends Event {
-  BroadcastListenCallbackEvent(void action(StreamSubscription sub))
-      : super.broadcast(action);
-  bool _testBroadcastListen() => true;
-  String toString() => "[BroadcastListen]";
-}
-
-/** Event matcher that matches any other event. */
-class LogAnyEvent extends Event {
-  String _actual = "*Not matched yet*";
-
-  LogAnyEvent(void action()) : super(action);
-
-  bool _testData(var data) {
-    _actual = "*[Data $data]";
-    return true;
-  }
-
-  bool _testError(error) {
-    _actual = "*[Error ${error}]";
-    return true;
-  }
-
-  bool _testDone() {
-    _actual = "*[Done]";
-    return true;
-  }
-
-  bool _testPause() {
-    _actual = "*[Paused]";
-    return true;
-  }
-
-  bool _testResume() {
-    _actual = "*[Resumed]";
-    return true;
-  }
-
-  bool _testSubscribe() {
-    _actual = "*[Subscribed]";
-    return true;
-  }
-
-  bool _testCancel() {
-    _actual = "*[Cancelled]";
-    return true;
-  }
-
-  bool _testBroadcastListen() {
-    _actual = "*[BroadcastListen]";
-    return true;
-  }
-
-  bool _testBroadcastCancel() {
-    _actual = "*[BroadcastCancel]";
-    return true;
-  }
-
-  /** Returns a representation of the event it was tested against. */
-  String toString() => _actual;
-}
diff --git a/tests/lib_2/async/stream_state_nonzero_timer_test.dart b/tests/lib_2/async/stream_state_nonzero_timer_test.dart
deleted file mode 100644
index 2b7ef1148f7..00000000000
--- a/tests/lib_2/async/stream_state_nonzero_timer_test.dart
+++ /dev/null
@@ -1,129 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test the event/callback protocol of the stream implementations.
-// Uses a non-zero timer so it fails on d8.
-
-library stream_state_nonzero_timer_test;
-
-import 'dart:async';
-
-import 'package:async_helper/async_minitest.dart';
-
-import 'stream_state_helper.dart';
-
-const ms5 = const Duration(milliseconds: 5);
-
-// Testing pause/resume, some with non-zero duration. This only makes sense for
-// non-broadcast streams, since broadcast stream subscriptions handle their
-// own pauses.
-
-main() {
-  var p = "StreamController";
-
-  test("$p-sub-data/pause/resume/pause/resume-done", () {
-    var t = new StreamProtocolTest();
-    t
-      ..expectListen()
-      ..expectData(42, () {
-        t.pause();
-      })
-      ..expectPause(() {
-        t.resume();
-      })
-      ..expectResume(() {
-        t.pause();
-      })
-      ..expectPause(() {
-        t.resume();
-      })
-      ..expectResume(() {
-        t.close();
-      })
-      ..expectCancel()
-      ..expectDone(t.terminate);
-    t
-      ..listen()
-      ..add(42);
-  });
-
-  test("$p-sub-data/pause-done", () {
-    var t = new StreamProtocolTest();
-    t
-      ..expectListen()
-      ..expectData(42, () {
-        t.pause(new Future.delayed(ms5, () => null));
-      })
-      ..expectPause()
-      ..expectCancel()
-      ..expectDone(t.terminate);
-    // We are calling "close" while the controller is actually paused,
-    // and it will stay paused until the pending events are sent.
-    t
-      ..listen()
-      ..add(42)
-      ..close();
-  });
-
-  test("$p-sub-data/pause-resume/done", () {
-    var t = new StreamProtocolTest();
-    t
-      ..expectListen()
-      ..expectData(42, () {
-        t.pause(new Future.delayed(ms5, () => null));
-      })
-      ..expectPause()
-      ..expectResume(t.close)
-      ..expectCancel()
-      ..expectDone(t.terminate);
-    t
-      ..listen()
-      ..add(42);
-  });
-
-  test("$p-sub-data/data+pause-data-resume-done", () {
-    var t = new StreamProtocolTest();
-    t
-      ..expectListen()
-      ..expectData(42, () {
-        t.add(43);
-        t.pause(new Future.delayed(ms5, () => null));
-        // Should now be paused until the future finishes.
-        // After that, the controller stays paused until the pending queue
-        // is empty.
-      })
-      ..expectPause()
-      ..expectData(43)
-      ..expectResume(t.close)
-      ..expectCancel()
-      ..expectDone(t.terminate);
-    t
-      ..listen()
-      ..add(42);
-  });
-
-  test("$p-pause-during-callback", () {
-    var t = new StreamProtocolTest();
-    t
-      ..expectListen()
-      ..expectData(42, () {
-        t.pause();
-      })
-      ..expectPause(() {
-        t.resume();
-      })
-      ..expectResume(() {
-        t.pause();
-        t.resume();
-        t.close();
-      })
-      ..expectCancel()
-      ..expectDone(t.terminate);
-    t
-      ..listen()
-      ..add(42);
-  });
-}
diff --git a/tests/lib_2/async/stream_state_test.dart b/tests/lib_2/async/stream_state_test.dart
deleted file mode 100644
index 6ea0b137aae..00000000000
--- a/tests/lib_2/async/stream_state_test.dart
+++ /dev/null
@@ -1,207 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test the event/callback protocol of the stream implementations.
-library stream_state_test;
-
-import 'package:async_helper/async_minitest.dart';
-
-import 'stream_state_helper.dart';
-
-const ms5 = const Duration(milliseconds: 5);
-
-main() {
-  mainTest(sync: true, asBroadcast: false);
-  mainTest(sync: true, asBroadcast: true);
-  mainTest(sync: false, asBroadcast: false);
-  mainTest(sync: false, asBroadcast: true);
-}
-
-void terminateWithDone(t, asBroadcast) {
-  if (asBroadcast) {
-    t
-      ..expectCancel()
-      ..expectDone()
-      ..expectBroadcastCancel((_) => t.terminate());
-  } else {
-    t
-      ..expectCancel()
-      ..expectDone(t.terminate);
-  }
-}
-
-mainTest({bool sync, bool asBroadcast}) {
-  var p = (sync ? "S" : "AS") + (asBroadcast ? "BC" : "SC");
-  test("$p-sub-data-done", () {
-    var t = asBroadcast
-        ? new StreamProtocolTest.asBroadcast(sync: sync)
-        : new StreamProtocolTest(sync: sync);
-    t
-      ..expectListen()
-      ..expectBroadcastListenOpt()
-      ..expectData(42);
-    terminateWithDone(t, asBroadcast);
-    t
-      ..listen()
-      ..add(42)
-      ..close();
-  });
-
-  test("$p-data-done-sub-sync", () {
-    var t = asBroadcast
-        ? new StreamProtocolTest.asBroadcast(sync: sync)
-        : new StreamProtocolTest(sync: sync);
-    t
-      ..expectListen()
-      ..expectBroadcastListenOpt()
-      ..expectData(42);
-    terminateWithDone(t, asBroadcast);
-    t
-      ..add(42)
-      ..close()
-      ..listen();
-  });
-
-  test("$p-data-done-sub-async", () {
-    var t = asBroadcast
-        ? new StreamProtocolTest.asBroadcast(sync: sync)
-        : new StreamProtocolTest(sync: sync);
-    t
-      ..expectListen()
-      ..expectBroadcastListenOpt()
-      ..expectData(42);
-    terminateWithDone(t, asBroadcast);
-    t
-      ..add(42)
-      ..close()
-      ..listen();
-  });
-
-  test("$p-sub-data/pause+resume-done", () {
-    var t = asBroadcast
-        ? new StreamProtocolTest.asBroadcast(sync: sync)
-        : new StreamProtocolTest(sync: sync);
-    t
-      ..expectListen()
-      ..expectBroadcastListenOpt()
-      ..expectData(42, () {
-        t.pause();
-        t.resume();
-        t.close();
-      });
-    terminateWithDone(t, asBroadcast);
-    t
-      ..listen()
-      ..add(42);
-  });
-
-  test("$p-sub-data-unsubonerror", () {
-    var t = asBroadcast
-        ? new StreamProtocolTest.asBroadcast(sync: sync)
-        : new StreamProtocolTest(sync: sync);
-    if (asBroadcast) {
-      t
-        ..expectListen()
-        ..expectBroadcastListen()
-        ..expectData(42)
-        ..expectError("bad")
-        ..expectBroadcastCancel()
-        ..expectCancel(t.terminate);
-    } else {
-      t
-        ..expectListen()
-        ..expectData(42)
-        ..expectCancel()
-        ..expectError("bad", t.terminate);
-    }
-    t
-      ..listen(cancelOnError: true)
-      ..add(42)
-      ..error("bad")
-      ..add(43)
-      ..close();
-  });
-
-  test("$p-sub-data-no-unsubonerror", () {
-    var t = asBroadcast
-        ? new StreamProtocolTest.asBroadcast(sync: sync)
-        : new StreamProtocolTest(sync: sync);
-    t
-      ..expectListen()
-      ..expectBroadcastListenOpt()
-      ..expectData(42)
-      ..expectError("bad")
-      ..expectData(43);
-    terminateWithDone(t, asBroadcast);
-    t
-      ..listen(cancelOnError: false)
-      ..add(42)
-      ..error("bad")
-      ..add(43)
-      ..close();
-  });
-
-  test("$p-pause-resume-during-event", () {
-    var t = asBroadcast
-        ? new StreamProtocolTest.broadcast(sync: sync)
-        : new StreamProtocolTest(sync: sync);
-    t
-      ..expectListen()
-      ..expectBroadcastListenOpt()
-      ..expectData(42, () {
-        t.pause();
-        t.resume();
-      });
-    if (!asBroadcast && !sync) {
-      t..expectPause();
-    }
-    if (asBroadcast && sync) {
-      t
-        ..expectDone()
-        ..expectCancel(t.terminate);
-    } else {
-      t
-        ..expectCancel()
-        ..expectDone(t.terminate);
-    }
-    t
-      ..listen()
-      ..add(42)
-      ..close();
-  });
-
-  test("$p-cancel-on-data", () {
-    var t = asBroadcast
-        ? new StreamProtocolTest.asBroadcast(sync: sync)
-        : new StreamProtocolTest(sync: sync);
-    t
-      ..expectListen()
-      ..expectBroadcastListenOpt()
-      ..expectData(42, t.cancel)
-      ..expectBroadcastCancelOpt()
-      ..expectCancel(t.terminate);
-    t
-      ..listen(cancelOnError: false)
-      ..add(42)
-      ..close();
-  });
-
-  test("$p-cancel-on-error", () {
-    var t = asBroadcast
-        ? new StreamProtocolTest.asBroadcast(sync: sync)
-        : new StreamProtocolTest(sync: sync);
-    t
-      ..expectListen()
-      ..expectBroadcastListenOpt()
-      ..expectError(42, t.cancel)
-      ..expectBroadcastCancelOpt()
-      ..expectCancel(t.terminate);
-    t
-      ..listen(cancelOnError: false)
-      ..error(42)
-      ..close();
-  });
-}
diff --git a/tests/lib_2/async/stream_subscription_as_future_test.dart b/tests/lib_2/async/stream_subscription_as_future_test.dart
deleted file mode 100644
index 131ac391a6f..00000000000
--- a/tests/lib_2/async/stream_subscription_as_future_test.dart
+++ /dev/null
@@ -1,144 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test the Stream.single method.
-library stream_single_test;
-
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_minitest.dart';
-
-main() {
-  test("subscription.asFuture success", () {
-    Stream stream = new Stream.fromIterable([1, 2, 3]);
-    var output = [];
-    var subscription = stream.listen((x) {
-      output.add(x);
-    });
-    subscription.asFuture(output).then(expectAsync((o) {
-      Expect.listEquals([1, 2, 3], o);
-    }));
-  });
-
-  test("subscription.asFuture success2", () {
-    StreamController controller = new StreamController(sync: true);
-    [1, 2, 3].forEach(controller.add);
-    controller.close();
-    Stream stream = controller.stream;
-    var output = [];
-    var subscription = stream.listen((x) {
-      output.add(x);
-    });
-    subscription.asFuture(output).then(expectAsync((o) {
-      Expect.listEquals([1, 2, 3], o);
-    }));
-  });
-
-  test("subscription.asFuture success 3", () {
-    Stream stream = new Stream.fromIterable([1, 2, 3]).map((x) => x);
-    var output = [];
-    var subscription = stream.listen((x) {
-      output.add(x);
-    });
-    subscription.asFuture(output).then(expectAsync((o) {
-      Expect.listEquals([1, 2, 3], o);
-    }));
-  });
-
-  test("subscription.asFuture different type", () {
-    Stream stream = new Stream<int>.fromIterable([1, 2, 3]);
-    var asyncCallback = expectAsync(() => {});
-    var output = [];
-    var subscription = stream.listen((x) {
-      output.add(x);
-    });
-    subscription.asFuture("string").then((String o) {
-      Expect.listEquals([1, 2, 3], output);
-      Expect.equals("string", o);
-      asyncCallback();
-    });
-  });
-
-  test("subscription.asFuture failure", () {
-    StreamController controller = new StreamController(sync: true);
-    [1, 2, 3].forEach(controller.add);
-    controller.addError("foo");
-    controller.close();
-    Stream stream = controller.stream;
-    var output = [];
-    var subscription = stream.listen((x) {
-      output.add(x);
-    });
-    subscription.asFuture(output).catchError(expectAsync((error) {
-      Expect.equals(error, "foo");
-    }));
-  });
-
-  test("subscription.asFuture failure2", () {
-    Stream stream = new Stream.fromIterable([1, 2, 3, 4]).map((x) {
-      if (x == 4) throw "foo";
-      return x;
-    });
-    var output = [];
-    var subscription = stream.listen((x) {
-      output.add(x);
-    });
-    subscription.asFuture(output).catchError(expectAsync((error) {
-      Expect.equals(error, "foo");
-    }));
-  });
-
-  test("subscription.asFuture delayed cancel", () {
-    var completer = new Completer();
-    var controller =
-        new StreamController(onCancel: () => completer.future, sync: true);
-    [1, 2, 3].forEach(controller.add);
-    controller.addError("foo");
-    controller.close();
-    Stream stream = controller.stream;
-    var output = [];
-    var subscription = stream.listen((x) {
-      output.add(x);
-    });
-    bool catchErrorHasRun = false;
-    subscription.asFuture(output).catchError(expectAsync((error) {
-      Expect.equals(error, "foo");
-      catchErrorHasRun = true;
-    }));
-    Timer.run(expectAsync(() {
-      Expect.isFalse(catchErrorHasRun);
-      completer.complete();
-    }));
-  });
-
-  test("subscription.asFuture failure in cancel", () {
-    runZonedGuarded(() {
-      var completer = new Completer();
-      var controller =
-          new StreamController(onCancel: () => completer.future, sync: true);
-      [1, 2, 3].forEach(controller.add);
-      controller.addError("foo");
-      controller.close();
-      Stream stream = controller.stream;
-      var output = [];
-      var subscription = stream.listen((x) {
-        output.add(x);
-      });
-      bool catchErrorHasRun = false;
-      subscription.asFuture(output).catchError(expectAsync((error) {
-        Expect.equals(error, "foo");
-        catchErrorHasRun = true;
-      }));
-      Timer.run(expectAsync(() {
-        Expect.isFalse(catchErrorHasRun);
-        completer.completeError(499);
-      }));
-    }, expectAsync2((e, s) {
-      Expect.equals(499, e);
-    }));
-  });
-}
diff --git a/tests/lib_2/async/stream_subscription_cancel_test.dart b/tests/lib_2/async/stream_subscription_cancel_test.dart
deleted file mode 100644
index db8062e3f76..00000000000
--- a/tests/lib_2/async/stream_subscription_cancel_test.dart
+++ /dev/null
@@ -1,321 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test the StreamSubscription.cancel return Future.
-library stream_subscription_cancel;
-
-import 'dart:async';
-
-import 'package:async_helper/async_minitest.dart';
-
-void main() {
-  test('subscription.cancel', () {
-    var completer = new Completer();
-    StreamController controller =
-        new StreamController(onCancel: () => completer.future);
-
-    bool done = false;
-    expect(controller.stream.listen(null).cancel().then((_) => done),
-        completion(equals(true)));
-
-    Timer.run(() {
-      done = true;
-      completer.complete();
-    });
-  });
-
-  test('subscription.cancel after close', () {
-    var completer = new Completer();
-    StreamController controller = new StreamController(onCancel: () {
-      completer.complete();
-      return completer.future;
-    });
-
-    controller.close();
-
-    var completer2 = new Completer();
-    var sub;
-    void onDone() {
-      sub.cancel().then(completer2.complete);
-    }
-
-    sub = controller.stream.listen(null, onDone: onDone);
-    expect(completer.future, completes);
-    expect(completer2.future, completes);
-  });
-
-  test('subscription.cancel after error', () {
-    var completer = new Completer();
-    StreamController controller =
-        new StreamController(onCancel: () => completer.future);
-
-    controller.addError("error");
-
-    bool done = false;
-
-    var subscription;
-    var doneCompleter = new Completer();
-    void onError(e) {
-      subscription.cancel().then((_) => doneCompleter.complete(done));
-      done = true;
-      completer.complete();
-    }
-
-    subscription = controller.stream.listen(null, onError: onError);
-    expect(doneCompleter.future, completion(equals(true)));
-  });
-
-  test('subscription.cancel after error (cancelOnError)', () {
-    bool called = false;
-    StreamController controller = new StreamController(onCancel: () {
-      called = true;
-    });
-
-    controller.addError("error");
-
-    var doneCompleter = new Completer();
-    void onError(e) {
-      expect(called, equals(true));
-      doneCompleter.complete(true);
-    }
-
-    controller.stream.listen(null, onError: onError, cancelOnError: true);
-    expect(doneCompleter.future, completion(equals(true)));
-  });
-
-  test('subscription.cancel before error (cancelOnError)', () {
-    var doneCompleter = new Completer();
-    StreamController controller = new StreamController(onCancel: () {
-      doneCompleter.complete(true);
-    });
-
-    controller.addError("error");
-
-    void onError(e) {
-      fail("onError is unexpected");
-    }
-
-    controller.stream
-        .listen(null, onError: onError, cancelOnError: true)
-        .cancel();
-    expect(doneCompleter.future, completion(equals(true)));
-  });
-
-  test('subscription.cancel on error (cancelOnError)', () {
-    bool called = false;
-    StreamController controller = new StreamController(onCancel: () {
-      expect(called, isFalse);
-      called = true;
-    });
-
-    controller.addError("error");
-
-    var doneCompleter = new Completer();
-    var sub;
-    void onError(e) {
-      expect(called, equals(true));
-      sub.cancel();
-      doneCompleter.complete(true);
-    }
-
-    sub = controller.stream.listen(null, onError: onError, cancelOnError: true);
-    expect(doneCompleter.future, completion(equals(true)));
-  });
-
-  test('subscription.cancel before done', () {
-    var doneCompleter = new Completer();
-    StreamController controller = new StreamController(onCancel: () {
-      doneCompleter.complete(true);
-    });
-
-    controller.close();
-
-    void onDone() {
-      fail("onDone is unexpected");
-    }
-
-    controller.stream.listen(null, onDone: onDone).cancel();
-    expect(doneCompleter.future, completion(equals(true)));
-  });
-
-  test('subscription.cancel through map', () {
-    var completer = new Completer();
-    StreamController controller =
-        new StreamController(onCancel: () => completer.future);
-
-    bool done = false;
-    var future = controller.stream.map((x) => x).listen(null).cancel();
-
-    expect(future.then((_) => done = true), completion(equals(true)));
-
-    Timer.run(() {
-      expect(done, isFalse);
-      completer.complete();
-    });
-  });
-
-  test('subscription.cancel through asyncMap', () {
-    var completer = new Completer();
-    StreamController controller =
-        new StreamController(onCancel: () => completer.future);
-
-    bool done = false;
-    var future = controller.stream.asyncMap((x) => x).listen(null).cancel();
-
-    expect(future.then((_) => done = true), completion(equals(true)));
-
-    Timer.run(() {
-      expect(done, isFalse);
-      completer.complete();
-    });
-  });
-
-  test('subscription.cancel through asyncExpand', () {
-    var completer = new Completer();
-    StreamController controller =
-        new StreamController(onCancel: () => completer.future);
-
-    bool done = false;
-    var future = controller.stream.asyncExpand((x) => x).listen(null).cancel();
-
-    expect(future.then((_) => done = true), completion(equals(true)));
-
-    Timer.run(() {
-      expect(done, isFalse);
-      completer.complete();
-    });
-  });
-
-  test('subscription.cancel through handleError', () {
-    var completer = new Completer();
-    StreamController controller =
-        new StreamController(onCancel: () => completer.future);
-
-    bool done = false;
-    var future = controller.stream.handleError((x) => x).listen(null).cancel();
-
-    expect(future.then((_) => done = true), completion(equals(true)));
-
-    Timer.run(() {
-      expect(done, isFalse);
-      completer.complete();
-    });
-  });
-
-  test('subscription.cancel through skip', () {
-    var completer = new Completer();
-    StreamController controller =
-        new StreamController(onCancel: () => completer.future);
-
-    bool done = false;
-    var future = controller.stream.skip(1).listen(null).cancel();
-
-    expect(future.then((_) => done = true), completion(equals(true)));
-
-    Timer.run(() {
-      expect(done, isFalse);
-      completer.complete();
-    });
-  });
-
-  test('subscription.cancel through take', () {
-    var completer = new Completer();
-    StreamController controller =
-        new StreamController(onCancel: () => completer.future);
-
-    bool done = false;
-    var future = controller.stream.take(1).listen(null).cancel();
-
-    expect(future.then((_) => done = true), completion(equals(true)));
-
-    Timer.run(() {
-      expect(done, isFalse);
-      completer.complete();
-    });
-  });
-
-  test('subscription.cancel through skipWhile', () {
-    var completer = new Completer();
-    StreamController controller =
-        new StreamController(onCancel: () => completer.future);
-
-    bool done = false;
-    var future = controller.stream.skipWhile((x) => true).listen(null).cancel();
-
-    expect(future.then((_) => done = true), completion(equals(true)));
-
-    Timer.run(() {
-      expect(done, isFalse);
-      completer.complete();
-    });
-  });
-
-  test('subscription.cancel through takeWhile', () {
-    var completer = new Completer();
-    StreamController controller =
-        new StreamController(onCancel: () => completer.future);
-
-    bool done = false;
-    var future = controller.stream.takeWhile((x) => true).listen(null).cancel();
-
-    expect(future.then((_) => done = true), completion(equals(true)));
-
-    Timer.run(() {
-      expect(done, isFalse);
-      completer.complete();
-    });
-  });
-
-  test('subscription.cancel through timeOut', () {
-    var completer = new Completer();
-    StreamController controller =
-        new StreamController(onCancel: () => completer.future);
-
-    bool done = false;
-    var duration = const Duration(hours: 5);
-    var future = controller.stream.timeout(duration).listen(null).cancel();
-
-    expect(future.then((_) => done = true), completion(equals(true)));
-
-    Timer.run(() {
-      expect(done, isFalse);
-      completer.complete();
-    });
-  });
-
-  test('subscription.cancel through transform', () {
-    var completer = new Completer();
-    StreamController controller =
-        new StreamController(onCancel: () => completer.future);
-
-    bool done = false;
-    var transformer = new StreamTransformer.fromHandlers(handleData: (x, y) {});
-    var future = controller.stream.transform(transformer).listen(null).cancel();
-
-    expect(future.then((_) => done = true), completion(equals(true)));
-
-    Timer.run(() {
-      expect(done, isFalse);
-      completer.complete();
-    });
-  });
-
-  test('subscription.cancel through where', () {
-    var completer = new Completer();
-    StreamController controller =
-        new StreamController(onCancel: () => completer.future);
-
-    bool done = false;
-    var future = controller.stream.where((x) => true).listen(null).cancel();
-
-    expect(future.then((_) => done = true), completion(equals(true)));
-
-    Timer.run(() {
-      expect(done, isFalse);
-      completer.complete();
-    });
-  });
-}
diff --git a/tests/lib_2/async/stream_take_test.dart b/tests/lib_2/async/stream_take_test.dart
deleted file mode 100644
index 2b193321a42..00000000000
--- a/tests/lib_2/async/stream_take_test.dart
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-class A {
-  const A();
-}
-
-class B extends A {
-  const B();
-}
-
-/// Stream which emits an error if it's not canceled at the correct time.
-///
-/// Must be canceled after at most [maxEvents] events.
-Stream makeStream(int maxEvents) {
-  var c;
-  int event = 0;
-  bool canceled = false;
-  c = new StreamController(onListen: () {
-    new Timer.periodic(const Duration(milliseconds: 10), (t) {
-      if (canceled) {
-        t.cancel();
-        return;
-      }
-      if (event == maxEvents) {
-        c.addError("NOT CANCELED IN TIME: $maxEvents");
-        c.close();
-        t.cancel();
-      } else {
-        c.add(event++);
-      }
-    });
-  }, onCancel: () {
-    canceled = true;
-  });
-  return c.stream;
-}
-
-main() {
-  asyncStart();
-  tests().then((_) {
-    asyncEnd();
-  });
-}
-
-tests() async {
-  await expectThrowsAsync(makeStream(4).take(5).toList(), "5/4");
-  await expectThrowsAsync(makeStream(0).take(1).toList(), "1/0");
-
-  Expect.listEquals([0, 1, 2, 3, 4], await makeStream(5).take(5).toList());
-
-  Expect.listEquals([0, 1, 2, 3], await makeStream(5).take(4).toList());
-
-  Expect.listEquals([0], await makeStream(5).take(1).toList());
-
-  Expect.listEquals([], await makeStream(5).take(0).toList());
-
-  Expect.listEquals([], await makeStream(0).take(0).toList());
-
-  // Regression for https://github.com/dart-lang/sdk/issues/30305
-  Expect.equals('result', await makeStream(5).take(0).drain('result'));
-}
-
-Future expectThrowsAsync(Future computation, String name) {
-  return computation.then((_) {
-    Expect.fail("$name: Did not throw");
-  }, onError: (e, s) {});
-}
diff --git a/tests/lib_2/async/stream_timeout_test.dart b/tests/lib_2/async/stream_timeout_test.dart
deleted file mode 100644
index e632d4ef3a2..00000000000
--- a/tests/lib_2/async/stream_timeout_test.dart
+++ /dev/null
@@ -1,197 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-import 'package:async_helper/async_minitest.dart';
-
-main() {
-  const ms5 = const Duration(milliseconds: 5);
-  const twoSecs = const Duration(seconds: 2);
-
-  test("stream timeout", () {
-    StreamController c = new StreamController();
-    Stream tos = c.stream.timeout(ms5);
-    expect(tos.isBroadcast, false);
-    tos.handleError(expectAsync((e, s) {
-      expect(e, new isInstanceOf<TimeoutException>());
-      expect(s, StackTrace.empty);
-    })).listen((v) {
-      fail("Unexpected event");
-    });
-  });
-
-  test("stream timeout add events", () {
-    StreamController c = new StreamController();
-    Stream tos = c.stream.timeout(ms5, onTimeout: (sink) {
-      sink.add(42);
-      sink.addError("ERROR");
-      sink.close();
-    });
-    expect(tos.isBroadcast, false);
-    tos.listen(expectAsync((v) {
-      expect(v, 42);
-    }), onError: expectAsync((e, s) {
-      expect(e, "ERROR");
-    }), onDone: expectAsync(() {}));
-  });
-
-  test("stream no timeout", () {
-    StreamController c = new StreamController();
-    Stream tos = c.stream.timeout(twoSecs);
-    int ctr = 0;
-    tos.listen((v) {
-      expect(v, 42);
-      ctr++;
-    }, onError: (e, s) {
-      fail("No error expected");
-    }, onDone: expectAsync(() {
-      expect(ctr, 2);
-    }));
-    expect(tos.isBroadcast, false);
-    c
-      ..add(42)
-      ..add(42)
-      ..close(); // Faster than a timeout!
-  });
-
-  test("stream timeout after events", () {
-    StreamController c = new StreamController();
-    Stream tos = c.stream.timeout(twoSecs);
-    expect(tos.isBroadcast, false);
-    int ctr = 0;
-    tos.listen((v) {
-      expect(v, 42);
-      ctr++;
-    }, onError: expectAsync((e, s) {
-      expect(ctr, 2);
-      expect(e, new isInstanceOf<TimeoutException>());
-    }));
-    c..add(42)..add(42); // No close, timeout after two events.
-  });
-
-  test("broadcast stream timeout", () {
-    StreamController c = new StreamController.broadcast();
-    Stream tos = c.stream.timeout(ms5);
-    expect(tos.isBroadcast, true);
-    tos.handleError(expectAsync((e, s) {
-      expect(e, new isInstanceOf<TimeoutException>());
-      expect(s, StackTrace.empty);
-    })).listen((v) {
-      fail("Unexpected event");
-    });
-  });
-
-  test("asBroadcast stream timeout", () {
-    StreamController c = new StreamController.broadcast();
-    Stream tos = c.stream.asBroadcastStream().timeout(ms5);
-    expect(tos.isBroadcast, true);
-    tos.handleError(expectAsync((e, s) {
-      expect(e, new isInstanceOf<TimeoutException>());
-      expect(s, StackTrace.empty);
-    })).listen((v) {
-      fail("Unexpected event");
-    });
-  });
-
-  test("mapped stream timeout", () {
-    StreamController c = new StreamController();
-    Stream tos = c.stream.map((x) => 2 * x).timeout(ms5);
-    expect(tos.isBroadcast, false);
-    tos.handleError(expectAsync((e, s) {
-      expect(e, new isInstanceOf<TimeoutException>());
-      expect(s, StackTrace.empty);
-    })).listen((v) {
-      fail("Unexpected event");
-    });
-  });
-
-  test("events prevent timeout", () {
-    Stopwatch sw = new Stopwatch();
-    StreamController c = new StreamController();
-    Stream tos = c.stream.timeout(twoSecs, onTimeout: (_) {
-      int elapsed = sw.elapsedMilliseconds;
-      if (elapsed > 250) {
-        // This should not happen, but it does occasionally.
-        // Starving the periodic timer has made the test useless.
-        print("Periodic timer of 5 ms delayed $elapsed ms.");
-        return;
-      }
-      fail("Timeout not prevented by events");
-      throw "ERROR";
-    });
-    // Start the periodic timer before we start listening to the stream.
-    // This should reduce the flakiness of the test.
-    int ctr = 200; // send this many events at 5ms intervals. Then close.
-    new Timer.periodic(ms5, (timer) {
-      sw.reset();
-      c.add(42);
-      if (--ctr == 0) {
-        timer.cancel();
-        c.close();
-      }
-    });
-    sw.start();
-
-    tos.listen((v) {
-      expect(v, 42);
-    }, onDone: expectAsync(() {}));
-  });
-
-  test("errors prevent timeout", () {
-    Stopwatch sw = new Stopwatch();
-    StreamController c = new StreamController();
-    Stream tos = c.stream.timeout(twoSecs, onTimeout: (_) {
-      int elapsed = sw.elapsedMilliseconds;
-      if (elapsed > 250) {
-        // This should not happen, but it does occasionally.
-        // Starving the periodic timer has made the test useless.
-        print("Periodic timer of 5 ms delayed $elapsed ms.");
-        return;
-      }
-      fail("Timeout not prevented by errors");
-    });
-
-    // Start the periodic timer before we start listening to the stream.
-    // This should reduce the flakiness of the test.
-    int ctr = 200; // send this many error events at 5ms intervals. Then close.
-    new Timer.periodic(ms5, (timer) {
-      sw.reset();
-      c.addError("ERROR");
-      if (--ctr == 0) {
-        timer.cancel();
-        c.close();
-      }
-    });
-    sw.start();
-
-    tos.listen((_) {}, onError: (e, s) {
-      expect(e, "ERROR");
-    }, onDone: expectAsync(() {}));
-  });
-
-  test("closing prevents timeout", () {
-    StreamController c = new StreamController();
-    Stream tos = c.stream.timeout(twoSecs, onTimeout: (_) {
-      fail("Timeout not prevented by close");
-    });
-    tos.listen((_) {}, onDone: expectAsync(() {}));
-    c.close();
-  });
-
-  test("pausing prevents timeout", () {
-    StreamController c = new StreamController();
-    Stream tos = c.stream.timeout(ms5, onTimeout: (_) {
-      fail("Timeout not prevented by close");
-    });
-    var subscription = tos.listen((_) {}, onDone: expectAsync(() {}));
-    subscription.pause();
-    new Timer(twoSecs, () {
-      c.close();
-      subscription.resume();
-    });
-  });
-}
diff --git a/tests/lib_2/async/stream_transform_test.dart b/tests/lib_2/async/stream_transform_test.dart
deleted file mode 100644
index 955b9ff84b0..00000000000
--- a/tests/lib_2/async/stream_transform_test.dart
+++ /dev/null
@@ -1,69 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library stream_transform_test;
-
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_minitest.dart';
-
-import 'event_helper.dart';
-
-main() {
-  // Regression tests for http://dartbug.com/8310 and 8311
-
-  test("simpleDone", () {
-    StreamController c = new StreamController(sync: true);
-    Stream out = c.stream.handleError((x) {}).handleError((x) {});
-    out.listen((v) {}, onDone: expectAsync(() {}));
-    // Should not throw.
-    c.close();
-  });
-
-  test("with events", () {
-    StreamController c = new StreamController(sync: true);
-    Events expected = new Events.fromIterable([10, 12]);
-    Events input = new Events.fromIterable([1, 2, 3, 4, 5, 6, 7]);
-    Events actual = new Events.capture(
-        c.stream.map((x) => x * 2).where((x) => x > 5).skip(2).take(2));
-    actual.onDone(expectAsync(() {
-      Expect.listEquals(expected.events, actual.events);
-    }));
-    input.replay(c);
-  });
-
-  test("paused events", () {
-    StreamController c = new StreamController(sync: true);
-    Events expected = new Events.fromIterable([10, 12]);
-    Events input = new Events.fromIterable([1, 2, 3, 4, 5, 6, 7]);
-    Events actual = new Events.capture(
-        c.stream.map((x) => x * 2).where((x) => x > 5).skip(2).take(2));
-    actual.onDone(expectAsync(() {
-      Expect.listEquals(expected.events, actual.events);
-    }));
-    actual.pause();
-    input.replay(c);
-    actual.resume();
-  });
-
-  test("closing after done", () {
-    var controller = new StreamController(sync: true);
-    controller.stream
-        .map((e) => e)
-        .transform(
-            new StreamTransformer.fromHandlers(handleData: (element, sink) {
-          sink.add(element);
-        }, handleDone: (sink) {
-          sink.close();
-        }))
-        .listen(expectAsync((e) => expect(e, equals("foo"))));
-
-    controller.add("foo");
-    // Should not crash.
-    controller.close();
-  });
-}
diff --git a/tests/lib_2/async/stream_transformation_broadcast_test.dart b/tests/lib_2/async/stream_transformation_broadcast_test.dart
deleted file mode 100644
index 34ec9eb2482..00000000000
--- a/tests/lib_2/async/stream_transformation_broadcast_test.dart
+++ /dev/null
@@ -1,364 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that transformations like `map` and `where` preserve broadcast flag.
-library stream_join_test;
-
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_minitest.dart';
-
-import 'event_helper.dart';
-
-main() {
-  testStream("singlesub", () => new StreamController(), (c) => c.stream);
-  testStream(
-      "broadcast", () => new StreamController.broadcast(), (c) => c.stream);
-  testStream("asBroadcast", () => new StreamController(),
-      (c) => c.stream.asBroadcastStream());
-  testStream("broadcast.asBroadcast", () => new StreamController.broadcast(),
-      (c) => c.stream.asBroadcastStream());
-}
-
-void testStream(
-    String name, StreamController create(), Stream getStream(controller)) {
-  test("$name-map", () {
-    var c = create();
-    var s = getStream(c);
-    Stream newStream = s.map((x) => x + 1);
-    Expect.equals(s.isBroadcast, newStream.isBroadcast);
-    newStream.single.then(expectAsync((v) {
-      Expect.equals(43, v);
-    }));
-    c.add(42);
-    c.close();
-  });
-  test("$name-where", () {
-    var c = create();
-    var s = getStream(c);
-    Stream newStream = s.where((x) => x.isEven);
-    Expect.equals(s.isBroadcast, newStream.isBroadcast);
-    newStream.single.then(expectAsync((v) {
-      Expect.equals(42, v);
-    }));
-    c.add(37);
-    c.add(42);
-    c.add(87);
-    c.close();
-  });
-  test("$name-handleError", () {
-    var c = create();
-    var s = getStream(c);
-    Stream newStream = s.handleError((x, s) {});
-    Expect.equals(s.isBroadcast, newStream.isBroadcast);
-    newStream.single.then(expectAsync((v) {
-      Expect.equals(42, v);
-    }));
-    c.addError("BAD1");
-    c.add(42);
-    c.addError("BAD2");
-    c.close();
-  });
-  test("$name-expand", () {
-    var c = create();
-    var s = getStream(c);
-    Stream newStream = s.expand((x) => x.isEven ? [x] : []);
-    Expect.equals(s.isBroadcast, newStream.isBroadcast);
-    newStream.single.then(expectAsync((v) {
-      Expect.equals(42, v);
-    }));
-    c.add(37);
-    c.add(42);
-    c.add(87);
-    c.close();
-  });
-  test("$name-transform", () {
-    var c = create();
-    var s = getStream(c);
-    // TODO: find name of default transformer
-    var t =
-        new StreamTransformer.fromHandlers(handleData: (value, EventSink sink) {
-      sink.add(value);
-    });
-    Stream newStream = s.transform(t);
-    Expect.equals(s.isBroadcast, newStream.isBroadcast);
-    newStream.single.then(expectAsync((v) {
-      Expect.equals(42, v);
-    }));
-    c.add(42);
-    c.close();
-  });
-  test("$name-take", () {
-    var c = create();
-    var s = getStream(c);
-    Stream newStream = s.take(1);
-    Expect.equals(s.isBroadcast, newStream.isBroadcast);
-    newStream.single.then(expectAsync((v) {
-      Expect.equals(42, v);
-    }));
-    c.add(42);
-    c.add(37);
-    c.close();
-  });
-  test("$name-takeWhile", () {
-    var c = create();
-    var s = getStream(c);
-    Stream newStream = s.takeWhile((x) => x.isEven);
-    Expect.equals(s.isBroadcast, newStream.isBroadcast);
-    newStream.single.then(expectAsync((v) {
-      Expect.equals(42, v);
-    }));
-    c.add(42);
-    c.add(37);
-    c.close();
-  });
-  test("$name-skip", () {
-    var c = create();
-    var s = getStream(c);
-    Stream newStream = s.skip(1);
-    Expect.equals(s.isBroadcast, newStream.isBroadcast);
-    newStream.single.then(expectAsync((v) {
-      Expect.equals(42, v);
-    }));
-    c.add(37);
-    c.add(42);
-    c.close();
-  });
-  test("$name-skipWhile", () {
-    var c = create();
-    var s = getStream(c);
-    Stream newStream = s.skipWhile((x) => x.isOdd);
-    Expect.equals(s.isBroadcast, newStream.isBroadcast);
-    newStream.single.then(expectAsync((v) {
-      Expect.equals(42, v);
-    }));
-    c.add(37);
-    c.add(42);
-    c.close();
-  });
-  test("$name-distinct", () {
-    var c = create();
-    var s = getStream(c);
-    Stream newStream = s.distinct();
-    Expect.equals(s.isBroadcast, newStream.isBroadcast);
-    newStream.single.then(expectAsync((v) {
-      Expect.equals(42, v);
-    }));
-    c.add(42);
-    c.add(42);
-    c.close();
-  });
-  test("$name-timeout", () {
-    var c = create();
-    var s = getStream(c);
-    Stream newStream = s.timeout(const Duration(seconds: 1));
-    Expect.equals(s.isBroadcast, newStream.isBroadcast);
-    newStream.single.then(expectAsync((v) {
-      Expect.equals(42, v);
-    }));
-    c.add(42);
-    c.close();
-  });
-  test("$name-asyncMap", () {
-    var c = create();
-    var s = getStream(c);
-    Stream newStream = s.asyncMap((x) => new Future.value(x + 1));
-    Expect.equals(s.isBroadcast, newStream.isBroadcast);
-    newStream.single.then(expectAsync((v) {
-      Expect.equals(43, v);
-    }));
-    c.add(42);
-    c.close();
-  });
-  test("$name-asyncExpand", () {
-    var c = create();
-    var s = getStream(c);
-    Stream newStream = s.asyncExpand((x) => new Stream.fromIterable([x + 1]));
-    Expect.equals(s.isBroadcast, newStream.isBroadcast);
-    newStream.single.then(expectAsync((v) {
-      Expect.equals(43, v);
-    }));
-    c.add(42);
-    c.close();
-  });
-
-  // The following tests are only on broadcast streams, they require listening
-  // more than once.
-  if (name.startsWith("singlesub")) return;
-
-  test("$name-skip-multilisten", () {
-    if (name.startsWith("singlesub") || name.startsWith("asBroadcast")) return;
-    var c = create();
-    var s = getStream(c);
-    Stream newStream = s.skip(5);
-    // Listen immediately, to ensure that an asBroadcast stream is started.
-    var sub = newStream.listen((_) {});
-    int i = 0;
-    var expect1 = 11;
-    var expect2 = 21;
-    var handler2 = expectAsync((v) {
-      expect(v, expect2);
-      expect2++;
-    }, count: 5);
-    var handler1 = expectAsync((v) {
-      expect(v, expect1);
-      expect1++;
-    }, count: 15);
-    var loop;
-    loop = expectAsync(() {
-      i++;
-      c.add(i);
-      if (i == 5) {
-        scheduleMicrotask(() {
-          newStream.listen(handler1);
-        });
-      }
-      if (i == 15) {
-        scheduleMicrotask(() {
-          newStream.listen(handler2);
-        });
-      }
-      if (i < 25) {
-        scheduleMicrotask(loop);
-      } else {
-        sub.cancel();
-        c.close();
-      }
-    }, count: 25);
-    scheduleMicrotask(loop);
-  });
-
-  test("$name-take-multilisten", () {
-    var c = create();
-    var s = getStream(c);
-    Stream newStream = s.take(10);
-    // Listen immediately, to ensure that an asBroadcast stream is started.
-    var sub = newStream.listen((_) {});
-    int i = 0;
-    var expect1 = 6;
-    var expect2 = 11;
-    var handler2 = expectAsync((v) {
-      expect(v, expect2);
-      expect(v <= 20, isTrue);
-      expect2++;
-    }, count: 10);
-    var handler1 = expectAsync((v) {
-      expect(v, expect1);
-      expect(v <= 15, isTrue);
-      expect1++;
-    }, count: 10);
-    var loop;
-    loop = expectAsync(() {
-      i++;
-      c.add(i);
-      if (i == 5) {
-        scheduleMicrotask(() {
-          newStream.listen(handler1);
-        });
-      }
-      if (i == 10) {
-        scheduleMicrotask(() {
-          newStream.listen(handler2);
-        });
-      }
-      if (i < 25) {
-        scheduleMicrotask(loop);
-      } else {
-        sub.cancel();
-        c.close();
-      }
-    }, count: 25);
-    scheduleMicrotask(loop);
-  });
-
-  test("$name-skipWhile-multilisten", () {
-    if (name.startsWith("singlesub") || name.startsWith("asBroadcast")) return;
-    var c = create();
-    var s = getStream(c);
-    Stream newStream = s.skipWhile((x) => (x % 10) != 1);
-    // Listen immediately, to ensure that an asBroadcast stream is started.
-    var sub = newStream.listen((_) {});
-    int i = 0;
-    var expect1 = 11;
-    var expect2 = 21;
-    var handler2 = expectAsync((v) {
-      expect(v, expect2);
-      expect2++;
-    }, count: 5);
-    var handler1 = expectAsync((v) {
-      expect(v, expect1);
-      expect1++;
-    }, count: 15);
-    var loop;
-    loop = expectAsync(() {
-      i++;
-      c.add(i);
-      if (i == 5) {
-        scheduleMicrotask(() {
-          newStream.listen(handler1);
-        });
-      }
-      if (i == 15) {
-        scheduleMicrotask(() {
-          newStream.listen(handler2);
-        });
-      }
-      if (i < 25) {
-        scheduleMicrotask(loop);
-      } else {
-        sub.cancel();
-        c.close();
-      }
-    }, count: 25);
-    scheduleMicrotask(loop);
-  });
-
-  test("$name-takeWhile-multilisten", () {
-    var c = create();
-    var s = getStream(c);
-    Stream newStream = s.takeWhile((x) => (x % 10) != 5);
-    // Listen immediately, to ensure that an asBroadcast stream is started.
-    var sub = newStream.listen((_) {});
-    int i = 0;
-    // Non-overlapping ranges means the test must not remember its first
-    // failure.
-    var expect1 = 6;
-    var expect2 = 16;
-    var handler2 = expectAsync((v) {
-      expect(v, expect2);
-      expect(v <= 25, isTrue);
-      expect2++;
-    }, count: 9);
-    var handler1 = expectAsync((v) {
-      expect(v, expect1);
-      expect(v <= 15, isTrue);
-      expect1++;
-    }, count: 9);
-    var loop;
-    loop = expectAsync(() {
-      i++;
-      c.add(i);
-      if (i == 5) {
-        scheduleMicrotask(() {
-          newStream.listen(handler1);
-        });
-      }
-      if (i == 15) {
-        scheduleMicrotask(() {
-          newStream.listen(handler2);
-        });
-      }
-      if (i < 25) {
-        scheduleMicrotask(loop);
-      } else {
-        sub.cancel();
-        c.close();
-      }
-    }, count: 25);
-    scheduleMicrotask(loop);
-  });
-}
diff --git a/tests/lib_2/async/stream_transformer_from_bind_test.dart b/tests/lib_2/async/stream_transformer_from_bind_test.dart
deleted file mode 100644
index 6908de16309..00000000000
--- a/tests/lib_2/async/stream_transformer_from_bind_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-import "package:async_helper/async_helper.dart";
-import 'package:expect/expect.dart';
-
-import 'event_helper.dart';
-
-void main() {
-  asyncStart();
-  var transformer =
-      new StreamTransformer<int, String>.fromBind((s) => s.map((v) => '$v'));
-  var controller = new StreamController<int>(sync: true);
-  Events expected = new Events.fromIterable(['1', '2']);
-  Events input = new Events.fromIterable([1, 2]);
-  Events actual = new Events.capture(controller.stream.transform(transformer));
-  actual.onDone(() {
-    Expect.listEquals(expected.events, actual.events);
-    asyncEnd();
-  });
-  input.replay(controller);
-}
diff --git a/tests/lib_2/async/stream_transformer_from_handlers_test.dart b/tests/lib_2/async/stream_transformer_from_handlers_test.dart
deleted file mode 100644
index 6b5a95e44e3..00000000000
--- a/tests/lib_2/async/stream_transformer_from_handlers_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-import 'event_helper.dart';
-
-get currentStackTrace {
-  try {
-    throw 0;
-  } catch (e, st) {
-    return st;
-  }
-}
-
-// In most cases the callback will be 'asyncEnd'. Errors are reported
-// asynchronously. We want to give them time to surface before reporting
-// asynchronous tests as done.
-void delayCycles(callback, int nbCycles) {
-  if (nbCycles == 0) {
-    callback();
-    return;
-  }
-  Timer.run(() {
-    delayCycles(callback, nbCycles - 1);
-  });
-}
-
-main() {
-  // Make sure the generic types are correct.
-  asyncStart();
-  var stackTrace = currentStackTrace;
-  var events = [];
-  var controller;
-  controller = new StreamController<int>(onListen: () {
-    controller.add(499);
-    controller.addError(42, stackTrace);
-    controller.close();
-  });
-  controller.stream
-      .transform(new StreamTransformer<int, String>.fromHandlers(
-          handleData: (int data, EventSink<String> sink) {
-    sink.add(data.toString());
-  }, handleError: (e, st, EventSink<String> sink) {
-    sink.add(e.toString());
-    sink.addError(e, st);
-  }, handleDone: (EventSink<String> sink) {
-    sink.add("done");
-    sink.close();
-  }))
-      .listen((data) => events.add(data), onError: (e, st) {
-    events.add(e);
-    events.add(st);
-  }, onDone: () {
-    Expect.listEquals(["499", "42", 42, stackTrace, "done"], events);
-    delayCycles(asyncEnd, 3);
-  });
-}
diff --git a/tests/lib_2/async/stream_transformer_test.dart b/tests/lib_2/async/stream_transformer_test.dart
deleted file mode 100644
index 7905a622381..00000000000
--- a/tests/lib_2/async/stream_transformer_test.dart
+++ /dev/null
@@ -1,105 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'dart:async';
-
-_defaultData(x) {}
-_defaultError(e, [st]) {}
-_defaultDone() {}
-
-/// Dummy StreamSubscription.
-class MyStreamSubscription<T> implements StreamSubscription<T> {
-  final Stream stream;
-  final bool cancelOnError;
-  Function handleData = null;
-  Function handleError = null;
-  Function handleDone = null;
-
-  MyStreamSubscription(this.stream, this.cancelOnError);
-
-  Future cancel() => null;
-  void onData(void handleData(T data)) {
-    this.handleData = handleData == null ? _defaultData : handleData;
-  }
-
-  void onError(Function handleError) {
-    this.handleError = handleError == null ? _defaultError : handleError;
-  }
-
-  void onDone(void handleDone()) {
-    this.handleDone = handleDone == null ? _defaultDone : handleDone;
-  }
-
-  void pause([Future resumeSignal]) {}
-  void resume() {}
-
-  final isPaused = false;
-  Future<E> asFuture<E>([E futureValue]) => null;
-}
-
-main() {
-  var transformer = new StreamTransformer<int, String>(
-      (stream, cancelOnError) =>
-          new MyStreamSubscription(stream, cancelOnError));
-
-  var controller = new StreamController<int>(sync: true);
-  var stream = controller.stream;
-  var transformed = stream.transform(transformer);
-
-  Expect.isFalse(transformed.isBroadcast);
-
-  var handleData = (String _) => 499;
-  var handleError = (e, st) => 42;
-  var handleDone = () => 99;
-
-  MyStreamSubscription<String> subscription =
-      transformed.listen(handleData, onError: handleError, onDone: handleDone);
-
-  Expect.identical(stream, subscription.stream);
-  Expect.equals(false, subscription.cancelOnError);
-  Expect.identical(handleData, subscription.handleData);
-  Expect.identical(handleError, subscription.handleError);
-  Expect.identical(handleDone, subscription.handleDone);
-
-  // Note that we reuse the transformer.
-
-  controller = new StreamController(sync: true);
-  stream = controller.stream;
-  transformed = stream.transform(transformer);
-  subscription = transformed.listen(null);
-
-  Expect.identical(stream, subscription.stream);
-  Expect.equals(false, subscription.cancelOnError);
-  Expect.identical(_defaultData, subscription.handleData);
-  Expect.identical(_defaultError, subscription.handleError);
-  Expect.identical(_defaultDone, subscription.handleDone);
-
-  controller = new StreamController(sync: true);
-  stream = controller.stream;
-  transformed = stream.transform(transformer);
-  subscription =
-      transformed.listen(null, onDone: handleDone, cancelOnError: true);
-
-  Expect.identical(stream, subscription.stream);
-  Expect.equals(true, subscription.cancelOnError);
-  Expect.identical(_defaultData, subscription.handleData);
-  Expect.identical(_defaultError, subscription.handleError);
-  Expect.identical(handleDone, subscription.handleDone);
-
-  controller = new StreamController.broadcast(sync: true);
-  stream = controller.stream;
-  transformed = stream.transform(transformer);
-  Expect.isTrue(transformed.isBroadcast);
-  subscription =
-      transformed.listen(null, onDone: handleDone, cancelOnError: true);
-
-  Expect.identical(stream, subscription.stream);
-  Expect.equals(true, subscription.cancelOnError);
-  Expect.identical(_defaultData, subscription.handleData);
-  Expect.identical(_defaultError, subscription.handleError);
-  Expect.identical(handleDone, subscription.handleDone);
-}
diff --git a/tests/lib_2/async/stream_type_test.dart b/tests/lib_2/async/stream_type_test.dart
deleted file mode 100644
index 11358d27b8f..00000000000
--- a/tests/lib_2/async/stream_type_test.dart
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-
-class TypeTest<T, NT> {
-  void call(object, name) {
-    Expect.isTrue(object is T, "$name is $T");
-    Expect.isFalse(object is NT, "$name is! $NT");
-  }
-}
-
-main() {
-  var checkIntStream = new TypeTest<Stream<int>, Stream<String>>();
-  var checkIntFuture = new TypeTest<Future<int>, Future<String>>();
-  var checkBoolFuture = new TypeTest<Future<bool>, Future<String>>();
-  var checkStringFuture = new TypeTest<Future<String>, Future<int>>();
-  var checkIntSetFuture = new TypeTest<Future<Set<int>>, Future<Set<String>>>();
-  var checkIntListFuture =
-      new TypeTest<Future<List<int>>, Future<List<String>>>();
-  var checkIntSubscription =
-      new TypeTest<StreamSubscription<int>, StreamSubscription<String>>();
-
-  // Generic function used as parameter for, e.g., `skipWhile` and `reduce`.
-  f([_1, _2]) => throw "unreachable";
-
-  bool testIntStream(stream(), name, int recursionDepth) {
-    checkIntStream(stream(), name);
-    if (recursionDepth > 0) {
-      checkIntSubscription(stream().listen(null), "$name.listen");
-
-      checkIntFuture(stream().first, "$name.first");
-      checkIntFuture(stream().last, "$name.last");
-      checkIntFuture(stream().single, "$name.single");
-      checkIntFuture(stream().singleWhere(f), "$name.singleWhere");
-      checkIntFuture(stream().elementAt(2), "$name.elementAt");
-      checkIntFuture(stream().reduce(f), "$name.reduce");
-      checkIntListFuture(stream().toList(), "$name.toList");
-      checkIntSetFuture(stream().toSet(), "$name.toSert");
-
-      checkIntFuture(stream().length, "$name.length");
-      checkBoolFuture(stream().isEmpty, "$name.is");
-      checkBoolFuture(stream().any(f), "$name.any");
-      checkBoolFuture(stream().every(f), "$name.every");
-      checkBoolFuture(stream().contains(null), "$name.contains");
-      checkStringFuture(stream().join(), "$name.join");
-
-      var n = recursionDepth - 1;
-      testIntStream(() => stream().where(f), "$name.where", n);
-      testIntStream(() => stream().take(2), "$name.take", n);
-      testIntStream(() => stream().takeWhile(f), "$name.takeWhile", n);
-      testIntStream(() => stream().skip(2), "$name.skip", n);
-      testIntStream(() => stream().skipWhile(f), "$name.skipWhile", n);
-      testIntStream(() => stream().distinct(f), "$name.distinct", n);
-      testIntStream(() => stream().handleError(f), "$name.handleError", n);
-      testIntStream(
-          () => stream().asBroadcastStream(), "$name.asBroadcastStream", n);
-    }
-  }
-
-  testIntStream(() => new StreamController<int>().stream, "Stream<int>", 3);
-  testIntStream(() => new StreamController<int>.broadcast().stream,
-      "BroadcastStream<int>", 3);
-}
diff --git a/tests/lib_2/async/stream_value_test.dart b/tests/lib_2/async/stream_value_test.dart
deleted file mode 100644
index ff5dec1d9ff..00000000000
--- a/tests/lib_2/async/stream_value_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-void main() async {
-  asyncStart();
-
-  {
-    // There is a first element.
-    var stream = Stream<int>.value(42);
-    var first = await stream.first;
-    Expect.equals(42, first);
-    // Is single-subscription.
-    Expect.throws(() => stream.first);
-  }
-
-  {
-    // There is no second element.
-    var stream = Stream<int>.value(42);
-    try {
-      await stream.skip(1).first;
-      Expect.fail("didn't throw");
-    } on Error {
-      // Success.
-    }
-  }
-
-  {
-    // There is still no second element.
-    var stream = Stream<int>.value(42);
-    try {
-      await stream.elementAt(1);
-      Expect.fail("didn't throw");
-    } on Error {
-      // Success.
-    }
-  }
-
-  {
-    // Works with await for.
-    var stream = Stream<int>.value(42);
-    var value = null;
-    await for (value in stream) {}
-    Expect.equals(42, value);
-  }
-
-  {
-    // Works with subscriptions and pause-resume.
-    var stream = Stream<int>.value(42);
-    var value;
-    var onDone = Completer();
-    var sub = stream.listen((v) {
-      value = v;
-    }, onDone: () {
-      Expect.equals(42, value);
-      onDone.complete();
-    });
-    sub.pause();
-    await Future.delayed(Duration(milliseconds: 10));
-    Expect.isNull(value);
-    Expect.isFalse(onDone.isCompleted);
-    sub.resume();
-    await onDone.future;
-  }
-
-  asyncEnd();
-}
diff --git a/tests/lib_2/async/stream_view_test.dart b/tests/lib_2/async/stream_view_test.dart
deleted file mode 100644
index def705acd26..00000000000
--- a/tests/lib_2/async/stream_view_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests the StreamView class.
-
-import "package:expect/expect.dart";
-import "dart:async";
-import "package:async_helper/async_helper.dart";
-
-main() {
-  asyncStart();
-  runTest().whenComplete(asyncEnd);
-}
-
-Future runTest() async {
-  unreachable([a, b]) {
-    throw "UNREACHABLE";
-  }
-
-  int tick = 0;
-  ticker() {
-    tick++;
-  }
-
-  asyncStart();
-
-  // Is const constructor.
-  Stream<int> s = const StreamView<int>(const Stream<int>.empty());
-
-  Expect.isFalse(s is Stream<String>); // Respects type parameter.
-  StreamSubscription<int> sub =
-      s.listen(unreachable, onError: unreachable, onDone: ticker);
-  Expect.isFalse(sub is StreamSubscription<String>); // Type parameter in sub.
-
-  Stream iterableStream = new Stream.fromIterable([1, 2, 3]);
-  Expect.listEquals([1, 2, 3], await iterableStream.toList());
-
-  asyncEnd();
-}
-
-Future flushMicrotasks() => new Future.delayed(Duration.zero);
diff --git a/tests/lib_2/async/stream_zones_test.dart b/tests/lib_2/async/stream_zones_test.dart
deleted file mode 100644
index e02385de5e8..00000000000
--- a/tests/lib_2/async/stream_zones_test.dart
+++ /dev/null
@@ -1,198 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async';
-
-/// StreamController in nested runZoned. Trivial.
-test1() {
-  var events = [];
-  var done = new Completer();
-  runZonedGuarded(() {
-    runZonedGuarded(() {
-      var c = new StreamController();
-      c.stream.listen((x) => events.add("stream: $x"),
-          onError: (x) => events.add("stream: error $x"),
-          onDone: done.complete);
-      c.add(1);
-      c.addError(2);
-      c.close();
-    }, (e, s) => events.add("rza: error $e"));
-  }, (e, s) => events.add("rzb: error $e"));
-  return [
-    done.future,
-    () {
-      Expect.listEquals(["stream: 1", "stream: error 2"], events);
-    }
-  ];
-}
-
-/// Adding errors to the stream controller from an outside zone.
-test2() {
-  var events = [];
-  var done = new Completer();
-  runZonedGuarded(() {
-    var c;
-    runZonedGuarded(() {
-      c = new StreamController();
-      c.stream.listen((x) => events.add("stream: $x"),
-          onError: (x) => events.add("stream: error $x"),
-          onDone: done.complete);
-    }, (e, s) => events.add("rza: error $e"));
-    c.add(1);
-    c.addError(2);
-    c.close();
-  }, (e, s) => events.add("rzb: error $e"));
-  return [
-    done.future,
-    () {
-      Expect.listEquals(["stream: 1", "stream: error 2"], events);
-    }
-  ];
-}
-
-/// Adding errors to the stream controller from a more nested zone.
-test3() {
-  var events = [];
-  var done = new Completer();
-  runZonedGuarded(() {
-    var c = new StreamController();
-    c.stream.listen((x) => events.add("stream: $x"),
-        onError: (x) => events.add("stream: error $x"), onDone: done.complete);
-    runZonedGuarded(() {
-      c.add(1);
-      c.addError(2);
-      c.close();
-    }, (e, s) => events.add("rza: error $e"));
-  }, (e, s) => events.add("rzb: error $e"));
-  return [
-    done.future,
-    () {
-      Expect.listEquals(["stream: 1", "stream: error 2"], events);
-    }
-  ];
-}
-
-/// Feeding a stream from a different zone into another controller.
-test4() {
-  var events = [];
-  var done = new Completer();
-  runZonedGuarded(() {
-    var c = new StreamController();
-    c.stream.listen((x) => events.add("stream: $x"),
-        onError: (x) => events.add("stream: error $x"), onDone: done.complete);
-    runZonedGuarded(() {
-      var c2 = new StreamController();
-      c.addStream(c2.stream).whenComplete(c.close);
-      c2.add(1);
-      c2.addError(2);
-      c2.close();
-    }, (e, s) => events.add("rza: error $e"));
-  }, (e, s) => events.add("rzb: error $e"));
-  return [
-    done.future,
-    () {
-      Expect.listEquals(["stream: 1", "stream: error 2"], events);
-    }
-  ];
-}
-
-/// Feeding a stream from a different zone into another controller.
-/// This time nesting is reversed wrt test4.
-test5() {
-  var events = [];
-  var done = new Completer();
-  runZonedGuarded(() {
-    var c;
-    runZonedGuarded(() {
-      c = new StreamController();
-      c.stream.listen((x) => events.add("stream: $x"),
-          onError: (x) => events.add("stream: error $x"),
-          onDone: done.complete);
-    }, (e, s) => events.add("rza: error $e"));
-    var c2 = new StreamController();
-    c.addStream(c2.stream).whenComplete(c.close);
-    c2.add(1);
-    c2.addError(2);
-    c2.close();
-  }, (e, s) => events.add("rzb: error $e"));
-  return [
-    done.future,
-    () {
-      Expect.listEquals(["stream: 1", "stream: error 2"], events);
-    }
-  ];
-}
-
-test6() {
-  var events = [];
-  var done = new Completer();
-  var c;
-  runZonedGuarded(() {
-    c = new StreamController();
-    c.stream.listen((x) => events.add("stream: $x"),
-        onError: (x) => events.add("stream: error $x"), onDone: done.complete);
-  }, (e, s) => events.add("rza: error $e"));
-  runZonedGuarded(() {
-    var c2 = new StreamController();
-    c.addStream(c2.stream).whenComplete(c.close);
-    c2.add(1);
-    c2.addError(2);
-    c2.close();
-  }, (e, s) => events.add("rzb: error $e"));
-  return [
-    done.future,
-    () {
-      Expect.listEquals(["stream: 1", "stream: error 2"], events);
-    }
-  ];
-}
-
-/// Adding errors to the stream controller from a parallel zone.
-test7() {
-  var events = [];
-  var done = new Completer();
-  var c;
-  runZonedGuarded(() {
-    c = new StreamController();
-    c.stream.listen((x) => events.add("stream: $x"),
-        onError: (x) => events.add("stream: error $x"), onDone: done.complete);
-  }, (e, s) => events.add("rza: error $e"));
-  runZonedGuarded(() {
-    c.add(1);
-    c.addError(2);
-    c.close();
-  }, (e, s) => events.add("rzb: error $e"));
-  return [
-    done.future,
-    () {
-      Expect.listEquals(["stream: 1", "stream: error 2"], events);
-    }
-  ];
-}
-
-main() {
-  asyncStart();
-
-  var tests = [
-    test1(),
-    test2(),
-    test3(),
-    test4(),
-    test5(),
-    test6(),
-    test7(),
-  ];
-
-  Future.wait(tests.map((l) => l.first as Future)).then((_) {
-    // Give time to complete all pending actions.
-    Timer.run(() {
-      tests.forEach((l) => (l.last)());
-      asyncEnd();
-    });
-  });
-}
diff --git a/tests/lib_2/async/timer_cancel1_test.dart b/tests/lib_2/async/timer_cancel1_test.dart
deleted file mode 100644
index e0c7901ade9..00000000000
--- a/tests/lib_2/async/timer_cancel1_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library timer_cancel1_test;
-
-import 'dart:async';
-
-import 'package:async_helper/async_minitest.dart';
-
-main() {
-  // Test that a timeout handler can cancel another.
-  test("timer cancel1 test", () {
-    var canceleeTimer;
-    var cancelerTimer;
-
-    void unreachable() {
-      fail("A canceled timeout handler should be unreachable.");
-    }
-
-    void handler() {
-      canceleeTimer.cancel();
-    }
-
-    cancelerTimer =
-        new Timer(const Duration(milliseconds: 1), expectAsync(handler));
-    canceleeTimer = new Timer(
-        const Duration(milliseconds: 1000), expectAsync(unreachable, count: 0));
-  });
-}
diff --git a/tests/lib_2/async/timer_cancel2_test.dart b/tests/lib_2/async/timer_cancel2_test.dart
deleted file mode 100644
index 1a9fc4a1def..00000000000
--- a/tests/lib_2/async/timer_cancel2_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library timer_cancel2_test;
-
-import 'dart:async';
-import 'package:expect/expect.dart';
-
-main() {
-  // Test that a timeout handler can cancel itself.
-  var cancelTimer;
-  var completer = new Completer();
-  int calls = 0;
-  void cancelHandler(Timer timer) {
-    Expect.equals(1, ++calls);
-    cancelTimer.cancel();
-    completer.complete();
-  }
-
-  cancelTimer =
-      new Timer.periodic(const Duration(milliseconds: 1), cancelHandler);
-  return completer.future;
-}
diff --git a/tests/lib_2/async/timer_cancel_test.dart b/tests/lib_2/async/timer_cancel_test.dart
deleted file mode 100644
index 310995df35f..00000000000
--- a/tests/lib_2/async/timer_cancel_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library timer_cancel_test;
-
-import 'dart:async';
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-final ms = const Duration(milliseconds: 1);
-
-main() {
-  asyncStart();
-  return testSimpleTimer()
-      .then((_) => cancelTimerWithSame())
-      .then((_) => asyncEnd());
-}
-
-Future testSimpleTimer() {
-  var cancelTimer = new Timer(ms * 1000, unreachable);
-  cancelTimer.cancel();
-
-  var handler = new Completer();
-  var repeatHandler = new Completer();
-  new Timer(ms * 1000, () {
-    cancelTimer.cancel();
-    handler.complete();
-  });
-
-  cancelTimer = new Timer(ms * 2000, unreachable);
-  var repeatTimer = 0;
-  new Timer.periodic(ms * 1500, (Timer timer) {
-    repeatTimer++;
-    timer.cancel();
-    Expect.equals(repeatTimer, 1);
-    repeatHandler.complete();
-  });
-
-  return handler.future.then((_) => repeatHandler.future);
-}
-
-Future cancelTimerWithSame() {
-  var completer = new Completer();
-  var t2;
-  var t1 = new Timer(ms * 0, () {
-    t2.cancel();
-    completer.complete();
-  });
-  t2 = new Timer(ms * 0, unreachable);
-  return completer.future;
-}
-
-void unreachable() {
-  Expect.fail("should not be reached");
-}
diff --git a/tests/lib_2/async/timer_isActive_test.dart b/tests/lib_2/async/timer_isActive_test.dart
deleted file mode 100644
index 01a937a8349..00000000000
--- a/tests/lib_2/async/timer_isActive_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-
-import 'package:async_helper/async_minitest.dart';
-
-main() {
-  test("timer isActive test", () {
-    Timer t;
-
-    t = new Timer(const Duration(seconds: 1),
-        expectAsync0(() => expect(t.isActive, equals(false))));
-    expect(t.isActive, equals(true));
-  });
-
-  test("periodic timer cancel test", () {
-    Timer t;
-
-    int i = 0;
-    void checkActive(Timer timer) {
-      expect(t.isActive, equals(true));
-      if (i == 2) {
-        t.cancel();
-        expect(t.isActive, equals(false));
-      }
-      i++;
-    }
-
-    t = new Timer.periodic(
-        new Duration(milliseconds: 1), expectAsync1(checkActive, count: 3));
-    expect(t.isActive, equals(true));
-  });
-
-  test("timer cancel test", () {
-    Timer timer = new Timer(
-        const Duration(seconds: 15), () => fail("Should not be reached."));
-    Timer.run(expectAsync0(() {
-      expect(timer.isActive, equals(true));
-      timer.cancel();
-      expect(timer.isActive, equals(false));
-    }));
-  });
-}
diff --git a/tests/lib_2/async/timer_repeat_test.dart b/tests/lib_2/async/timer_repeat_test.dart
deleted file mode 100644
index 7cc7f6de5fd..00000000000
--- a/tests/lib_2/async/timer_repeat_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library timer_repeat_test;
-
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-
-const Duration TIMEOUT = const Duration(milliseconds: 500);
-const int ITERATIONS = 5;
-
-Timer timer;
-Stopwatch stopwatch = new Stopwatch();
-int iteration;
-
-// Some browsers (Firefox and IE so far) can trigger too early. Add a safety
-// margin. We use identical(1, 1.0) as an easy way to know if the test is
-// compiled by dart2js.
-int get safetyMargin => identical(1, 1.0) ? 100 : 0;
-
-var completer = new Completer();
-
-void timeoutHandler(Timer timer) {
-  iteration++;
-  Expect.isTrue(iteration <= ITERATIONS);
-  if (iteration == ITERATIONS) {
-    // When we are done with all of the iterations, we expect a
-    // certain amount of time to have passed.  Checking the time on
-    // each iteration doesn't work because the timeoutHandler runs
-    // concurrently with the periodic timer.
-    Expect.isTrue(stopwatch.elapsedMilliseconds + safetyMargin >=
-        ITERATIONS * TIMEOUT.inMilliseconds);
-    timer.cancel();
-    completer.complete();
-  }
-}
-
-main() {
-  iteration = 0;
-  stopwatch.start();
-  timer = new Timer.periodic(TIMEOUT, timeoutHandler);
-  return completer.future;
-}
diff --git a/tests/lib_2/async/timer_test.dart b/tests/lib_2/async/timer_test.dart
deleted file mode 100644
index 51500d29b8e..00000000000
--- a/tests/lib_2/async/timer_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library timer_test;
-
-import 'dart:async';
-
-import 'package:async_helper/async_minitest.dart';
-
-const int STARTTIMEOUT = 1050;
-const int DECREASE = 200;
-const int ITERATIONS = 5;
-
-Stopwatch stopwatch = new Stopwatch();
-int timeout;
-int iteration;
-
-// Some browsers (Firefox and IE so far) can trigger too early. Add a safety
-// margin. We use identical(1, 1.0) as an easy way to know if the test is
-// compiled by dart2js.
-int get safetyMargin => identical(1, 1.0) ? 100 : 0;
-
-void timeoutHandler() {
-  expect(stopwatch.elapsedMilliseconds + safetyMargin,
-      greaterThanOrEqualTo(timeout));
-  if (iteration < ITERATIONS) {
-    iteration++;
-    timeout = timeout - DECREASE;
-    Duration duration = new Duration(milliseconds: timeout);
-    stopwatch.reset();
-    new Timer(duration, expectAsync(timeoutHandler));
-  }
-}
-
-main() {
-  test("timeout test", () {
-    iteration = 0;
-    timeout = STARTTIMEOUT;
-    Duration duration = new Duration(milliseconds: timeout);
-    stopwatch.start();
-    new Timer(duration, expectAsync(timeoutHandler));
-  });
-}
diff --git a/tests/lib_2/async/unawaited_error_test.dart b/tests/lib_2/async/unawaited_error_test.dart
deleted file mode 100644
index c1eecb8eaab..00000000000
--- a/tests/lib_2/async/unawaited_error_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-void main() {
-  // The `unawaited` function is not exposed by dart:core.
-  unawaited;
-//^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.UNDEFINED_IDENTIFIER
-// [cfe] Undefined name 'unawaited'.
-}
diff --git a/tests/lib_2/async/unawaited_test.dart b/tests/lib_2/async/unawaited_test.dart
deleted file mode 100644
index e78382c9d52..00000000000
--- a/tests/lib_2/async/unawaited_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:async_helper/async_helper.dart';
-import "package:expect/expect.dart";
-import 'dart:async' show Completer, runZonedGuarded, unawaited;
-import 'dart:async' as prefix;
-import '../../language_2/static_type_helper.dart';
-
-void main() {
-  testUnawaited();
-}
-
-void testUnawaited() {
-  // Exists where expected.
-  prefix.unawaited.expectStaticType<Exactly<void Function(Future<Object>)>>();
-
-  var future = Future<int>.value(42);
-  captureStaticType(unawaited(future), <T>(value) {
-    Expect.equals(typeOf<void>(), T);
-  });
-
-  Future<Never> noFuture = null;
-  unawaited(noFuture); // Doesn't throw on `null`.
-
-  asyncStart();
-  // Unawaited futures still throw.
-  {
-    var c = Completer<int>();
-    var f = c.future;
-    unawaited(f);
-    asyncStart();
-    f.catchError((e) {
-      Expect.equals("ERROR1", e);
-      asyncEnd();
-      return 0;
-    });
-    c.completeError("ERROR1");
-  }
-  // Unawaited futures are still uncaught errors.
-  {
-    asyncStart();
-    runZonedGuarded(() {
-      var c = Completer<int>();
-      var f = c.future;
-      unawaited(f);
-      c.completeError("ERROR2");
-    }, (e, s) {
-      Expect.equals("ERROR2", e);
-      asyncEnd();
-    });
-  }
-  asyncEnd();
-}
diff --git a/tests/lib_2/async/uncaught_error_handler_throws_test.dart b/tests/lib_2/async/uncaught_error_handler_throws_test.dart
deleted file mode 100644
index e5790af0199..00000000000
--- a/tests/lib_2/async/uncaught_error_handler_throws_test.dart
+++ /dev/null
@@ -1,78 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-void main() async {
-  asyncStart();
-  await testThrowSame();
-  await testThrowOther();
-  asyncEnd();
-}
-
-Future<void> testThrowSame() async {
-  asyncStart();
-  var object1 = Object();
-  var stack1 = StackTrace.current;
-  var outerZone = Zone.current;
-  var firstZone = Zone.current.fork(specification: onError((error, stack) {
-    // Uncaught error handlers run in the parent zone.
-    Expect.identical(outerZone, Zone.current);
-    Expect.identical(object1, error);
-    Expect.identical(stack1, stack); // Get same stack trace.
-    asyncEnd();
-  }));
-  firstZone.run(() async {
-    Expect.identical(firstZone, Zone.current);
-    var secondZone = Zone.current.fork(specification: onError((error, stack) {
-      // Uncaught error handlers run in the parent zone.
-      Expect.identical(firstZone, Zone.current);
-      Expect.identical(object1, error);
-      Expect.identical(stack1, stack);
-      throw error; // Throw same object
-    }));
-    secondZone.run(() async {
-      Expect.identical(secondZone, Zone.current);
-      Future.error(object1, stack1); // Unhandled async error.
-      await Future(() {});
-    });
-  });
-}
-
-Future<void> testThrowOther() async {
-  asyncStart();
-  var object1 = Object();
-  var object2 = Object();
-  var stack1 = StackTrace.current;
-  var outerZone = Zone.current;
-  var firstZone = Zone.current.fork(specification: onError((error, stack) {
-    Expect.identical(outerZone, Zone.current);
-    Expect.identical(object2, error);
-    Expect.notIdentical(stack1, stack); // Get different stack trace.
-    asyncEnd();
-  }));
-  firstZone.run(() async {
-    Expect.identical(firstZone, Zone.current);
-    var secondZone = Zone.current.fork(specification: onError((error, stack) {
-      Expect.identical(firstZone, Zone.current);
-      Expect.identical(object1, error);
-      Expect.identical(stack1, stack);
-      throw object2; // Throw different object
-    }));
-    secondZone.run(() async {
-      Expect.identical(secondZone, Zone.current);
-      Future.error(object1, stack1); // Unhandled async error.
-      await Future(() {});
-    });
-  });
-}
-
-ZoneSpecification onError(void Function(Object, StackTrace) handler) {
-  return ZoneSpecification(
-      handleUncaughtError: (s, p, z, e, st) => handler(e, st));
-}
diff --git a/tests/lib_2/async/wait_for_cancel_test.dart b/tests/lib_2/async/wait_for_cancel_test.dart
deleted file mode 100644
index aed799be04c..00000000000
--- a/tests/lib_2/async/wait_for_cancel_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-main() {
-  asyncStart();
-
-  bool waitedForCancel = false;
-
-  var controller = new StreamController(
-      onCancel: () => new Future(() => waitedForCancel = true));
-  var sub = controller.stream.take(1).listen((x) {
-    Expect.fail("onData should not be called");
-  });
-  var cancelFuture = sub.cancel();
-  Expect.isNotNull(cancelFuture);
-  cancelFuture.then((_) {
-    Expect.isTrue(waitedForCancel);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/zone_async_error_test.dart b/tests/lib_2/async/zone_async_error_test.dart
deleted file mode 100644
index 73840d422dc..00000000000
--- a/tests/lib_2/async/zone_async_error_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-
-main() {
-  // The error cannot be null.
-  Expect.throwsTypeError(() {
-    AsyncError(null, StackTrace.current);
-  });
-}
diff --git a/tests/lib_2/async/zone_bind_callback_test.dart b/tests/lib_2/async/zone_bind_callback_test.dart
deleted file mode 100644
index 234be15dca0..00000000000
--- a/tests/lib_2/async/zone_bind_callback_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-main() {
-  Completer done = new Completer();
-
-  var valueToCapture;
-  var restoredValue;
-
-  Expect.identical(Zone.root, Zone.current);
-  Zone forked = Zone.current.fork(specification: new ZoneSpecification(
-      registerCallback:
-          <R>(Zone self, ZoneDelegate parent, Zone origin, R f()) {
-    // The zone is still the same as when origin.run was invoked, which
-    // is the root zone. (The origin zone hasn't been set yet).
-    Expect.identical(Zone.current, Zone.root);
-    // Note that not forwarding is completely legal, though not encouraged.
-    var capturedValue = valueToCapture;
-    return parent.registerCallback(origin, () {
-      restoredValue = capturedValue;
-      return f();
-    });
-  }));
-
-  valueToCapture = 499;
-  var fun = () {
-    Expect.identical(forked, Zone.current);
-    return 99;
-  };
-  var registered = forked.bindCallback(fun);
-  Expect.isFalse(identical(fun, registered));
-
-  var result = registered();
-  Expect.equals(99, result);
-  Expect.equals(499, restoredValue);
-}
diff --git a/tests/lib_2/async/zone_bind_callback_unary_test.dart b/tests/lib_2/async/zone_bind_callback_unary_test.dart
deleted file mode 100644
index 8bf937fbbd0..00000000000
--- a/tests/lib_2/async/zone_bind_callback_unary_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-main() {
-  Completer done = new Completer();
-
-  var valueToCapture;
-  var restoredValue;
-
-  Expect.identical(Zone.root, Zone.current);
-  Zone forked = Zone.current.fork(specification: new ZoneSpecification(
-      registerUnaryCallback:
-          <R, T>(Zone self, ZoneDelegate parent, Zone origin, R f(T arg)) {
-    // The zone is still the same as when origin.run was invoked, which
-    // is the root zone. (The origin zone hasn't been set yet).
-    Expect.identical(Zone.current, Zone.root);
-    // Note that not forwarding is completely legal, though not encouraged.
-    var capturedValue = valueToCapture;
-    return parent.registerUnaryCallback(origin, (arg) {
-      restoredValue = capturedValue;
-      return f(arg);
-    });
-  }));
-
-  valueToCapture = 499;
-  var fun = (x) {
-    Expect.identical(forked, Zone.current);
-    return x + 99;
-  };
-  var bound = forked.bindUnaryCallback(fun);
-  Expect.isFalse(identical(fun, bound));
-
-  // It is legal to invoke the callback in a different zone. This is, of course,
-  // extremely discouraged.
-  var result = bound(399);
-  Expect.equals(498, result);
-  Expect.equals(499, restoredValue);
-}
diff --git a/tests/lib_2/async/zone_bind_test.dart b/tests/lib_2/async/zone_bind_test.dart
deleted file mode 100644
index 2920d146cbc..00000000000
--- a/tests/lib_2/async/zone_bind_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-main() {
-  Completer done = new Completer();
-
-  Expect.identical(Zone.root, Zone.current);
-  // New zone, does nothing by itself.
-  Zone forked = Zone.current.fork(specification: new ZoneSpecification());
-
-  int ctr = 0;
-  void expectZone([timer]) {
-    Expect.identical(forked, Zone.current);
-    if (timer != null) timer.cancel();
-    if (++ctr == 3) {
-      asyncEnd();
-    }
-  }
-
-  asyncStart();
-  Duration now = const Duration(seconds: 0);
-  // Check that the callback is bound to the zone.
-  forked.scheduleMicrotask(expectZone);
-  forked.createTimer(now, expectZone);
-  forked.createPeriodicTimer(now, expectZone);
-}
diff --git a/tests/lib_2/async/zone_create_periodic_timer_test.dart b/tests/lib_2/async/zone_create_periodic_timer_test.dart
deleted file mode 100644
index 2b48d908555..00000000000
--- a/tests/lib_2/async/zone_create_periodic_timer_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-main() {
-  Completer done = new Completer();
-  List events = [];
-
-  Expect.identical(Zone.root, Zone.current);
-  Zone forked;
-  forked = Zone.current.fork(specification: new ZoneSpecification(
-      createPeriodicTimer: (Zone self, ZoneDelegate parent, Zone origin,
-          Duration period, f(Timer timer)) {
-    events.add("forked.createPeriodicTimer");
-    return parent.createPeriodicTimer(origin, period, (Timer timer) {
-      events.add("wrapped function ${period.inMilliseconds}");
-      f(timer);
-    });
-  }));
-
-  asyncStart();
-  int tickCount = 0;
-  forked.run(() {
-    new Timer.periodic(const Duration(milliseconds: 5), (Timer timer) {
-      events.add("periodic Timer $tickCount");
-      Expect.identical(forked, Zone.current);
-      tickCount++;
-      if (tickCount == 4) {
-        timer.cancel();
-        // Allow some time in case the cancel didn't work.
-        new Timer(const Duration(milliseconds: 20), done.complete);
-      }
-    });
-  });
-
-  Expect.identical(Zone.root, Zone.current);
-  events.add("after createPeriodicTimer");
-
-  done.future.whenComplete(() {
-    Expect.listEquals([
-      "forked.createPeriodicTimer",
-      "after createPeriodicTimer",
-      "wrapped function 5",
-      "periodic Timer 0",
-      "wrapped function 5",
-      "periodic Timer 1",
-      "wrapped function 5",
-      "periodic Timer 2",
-      "wrapped function 5",
-      "periodic Timer 3"
-    ], events);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/zone_create_timer2_test.dart b/tests/lib_2/async/zone_create_timer2_test.dart
deleted file mode 100644
index 623d895eac0..00000000000
--- a/tests/lib_2/async/zone_create_timer2_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-main() {
-  Completer done = new Completer();
-  List events = [];
-
-  Expect.identical(Zone.root, Zone.current);
-  Zone forked;
-  forked = Zone.current.fork(specification: new ZoneSpecification(createTimer:
-      (Zone self, ZoneDelegate parent, Zone origin, Duration duration, f()) {
-    events.add("forked.createTimer");
-    return parent.createTimer(origin, duration, () {
-      events.add("wrapped function ${duration.inMilliseconds}");
-      f();
-    });
-  }));
-
-  asyncStart();
-  forked.run(() {
-    Timer timer = new Timer(const Duration(milliseconds: 20), () {
-      events.add("createTimer");
-      Expect.identical(forked, Zone.current);
-      done.complete(true);
-    });
-  });
-
-  Expect.identical(Zone.root, Zone.current);
-  events.add("after createTimer");
-
-  done.future.whenComplete(() {
-    Expect.listEquals([
-      "forked.createTimer",
-      "after createTimer",
-      "wrapped function 20",
-      "createTimer"
-    ], events);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/zone_create_timer_test.dart b/tests/lib_2/async/zone_create_timer_test.dart
deleted file mode 100644
index 5958b2e4607..00000000000
--- a/tests/lib_2/async/zone_create_timer_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-main() {
-  Completer done = new Completer();
-  List events = [];
-
-  Expect.identical(Zone.root, Zone.current);
-  Zone forked;
-  forked = Zone.current.fork(specification: new ZoneSpecification(createTimer:
-      (Zone self, ZoneDelegate parent, Zone origin, Duration duration, f()) {
-    events.add("forked.createTimer");
-    return parent.createTimer(origin, duration, () {
-      events.add("wrapped function ${duration.inMilliseconds}");
-      f();
-    });
-  }));
-
-  asyncStart();
-  forked.run(() {
-    new Timer(Duration.zero, () {
-      events.add("createTimer");
-      Expect.identical(forked, Zone.current);
-      done.complete(true);
-    });
-  });
-
-  Expect.identical(Zone.root, Zone.current);
-  events.add("after createTimer");
-
-  done.future.whenComplete(() {
-    Expect.listEquals([
-      "forked.createTimer",
-      "after createTimer",
-      "wrapped function 0",
-      "createTimer"
-    ], events);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/zone_debug_test.dart b/tests/lib_2/async/zone_debug_test.dart
deleted file mode 100644
index 916da2f4b40..00000000000
--- a/tests/lib_2/async/zone_debug_test.dart
+++ /dev/null
@@ -1,137 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-/**
- * We represent the current stack trace by an integer. From time to time we
- * increment the variable. This corresponds to a new stack trace.
- */
-int stackTrace = 0;
-List restoredStackTrace = [];
-
-List events = [];
-
-ZoneCallback<R> debugZoneRegisterCallback<R>(
-    Zone self, ZoneDelegate parent, Zone origin, R f()) {
-  List savedTrace = [stackTrace]..addAll(restoredStackTrace);
-  return parent.registerCallback(origin, () {
-    restoredStackTrace = savedTrace;
-    return f();
-  });
-}
-
-ZoneUnaryCallback<R, T> debugZoneRegisterUnaryCallback<R, T>(
-    Zone self, ZoneDelegate parent, Zone origin, R f(T arg)) {
-  List savedTrace = [stackTrace]..addAll(restoredStackTrace);
-  return parent.registerUnaryCallback(origin, (arg) {
-    restoredStackTrace = savedTrace;
-    return f(arg);
-  });
-}
-
-T debugZoneRun<T>(Zone self, ZoneDelegate parent, Zone origin, T f()) {
-  stackTrace++;
-  restoredStackTrace = [];
-  return parent.run(origin, f);
-}
-
-R debugZoneRunUnary<R, T>(
-    Zone self, ZoneDelegate parent, Zone origin, R f(T arg), T arg) {
-  stackTrace++;
-  restoredStackTrace = [];
-  return parent.runUnary(origin, f, arg);
-}
-
-List expectedDebugTrace;
-
-void debugUncaughtHandler(
-    Zone self, ZoneDelegate parent, Zone origin, error, StackTrace stackTrace) {
-  events.add("handling uncaught error $error");
-  Expect.listEquals(expectedDebugTrace, restoredStackTrace);
-  // Suppress the error and don't propagate to parent.
-}
-
-const DEBUG_SPECIFICATION = const ZoneSpecification(
-    registerCallback: debugZoneRegisterCallback,
-    registerUnaryCallback: debugZoneRegisterUnaryCallback,
-    run: debugZoneRun,
-    runUnary: debugZoneRunUnary,
-    handleUncaughtError: debugUncaughtHandler);
-
-main() {
-  Completer done = new Completer();
-
-  // runGuarded calls run, captures the synchronous error (if any) and
-  // gives that one to handleUncaughtError.
-
-  Expect.identical(Zone.root, Zone.current);
-  Zone forked;
-  forked = Zone.current.fork(specification: DEBUG_SPECIFICATION);
-
-  asyncStart();
-
-  int openTests = 0;
-
-  openTests++;
-  forked.run(() {
-    int forkTrace = stackTrace;
-    scheduleMicrotask(() {
-      int scheduleMicrotaskTrace = stackTrace;
-      scheduleMicrotask(() {
-        expectedDebugTrace = [scheduleMicrotaskTrace, forkTrace];
-        openTests--;
-        if (openTests == 0) {
-          done.complete();
-        }
-        throw "foo";
-      });
-      expectedDebugTrace = [forkTrace];
-      throw "bar";
-    });
-  });
-
-  Expect.listEquals([], restoredStackTrace);
-  Zone forked2 = forked.fork();
-  Zone forked3 = forked2.fork();
-  int fork2Trace;
-  int fork3Trace;
-  var f2;
-  var globalTrace = stackTrace;
-  var f = forked3.bindCallback(() {
-    Expect.identical(forked3, Zone.current);
-    fork2Trace = stackTrace;
-    f2 = forked2.bindCallback(() {
-      Expect.identical(forked2, Zone.current);
-      Expect.listEquals([fork2Trace, globalTrace], restoredStackTrace);
-      fork3Trace = stackTrace;
-      openTests--;
-      if (openTests == 0) {
-        done.complete();
-      }
-      scheduleMicrotask(() {
-        expectedDebugTrace = [fork3Trace, fork2Trace, globalTrace];
-        throw "gee";
-      });
-    });
-  });
-  openTests++;
-  f();
-  f2();
-
-  done.future.whenComplete(() {
-    // We don't really care for the order.
-    events.sort();
-    Expect.listEquals([
-      "handling uncaught error bar",
-      "handling uncaught error foo",
-      "handling uncaught error gee"
-    ], events);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/zone_empty_description2_test.dart b/tests/lib_2/async/zone_empty_description2_test.dart
deleted file mode 100644
index f99a70ab484..00000000000
--- a/tests/lib_2/async/zone_empty_description2_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-testEmptyZoneSpecification() {
-  Expect.identical(Zone.root, Zone.current);
-  Zone forked = Zone.current.fork();
-  Expect.isFalse(identical(Zone.root, forked));
-
-  asyncStart();
-  bool timerDidRun = false;
-  forked.createTimer(const Duration(milliseconds: 20), () {
-    // The createTimer function on the Zone binds the closures.
-    Expect.identical(forked, Zone.current);
-    timerDidRun = true;
-    asyncEnd();
-  });
-  Expect.identical(Zone.root, Zone.current);
-
-  asyncStart();
-  int periodicTimerCount = 0;
-  forked.createPeriodicTimer(const Duration(milliseconds: 20), (Timer timer) {
-    periodicTimerCount++;
-    if (periodicTimerCount == 4) {
-      timer.cancel();
-      asyncEnd();
-    }
-    // The createPeriodicTimer function on the Zone binds the closures.
-    Expect.identical(forked, Zone.current);
-  });
-  Expect.identical(Zone.root, Zone.current);
-}
-
-main() {
-  testEmptyZoneSpecification();
-}
diff --git a/tests/lib_2/async/zone_empty_description_test.dart b/tests/lib_2/async/zone_empty_description_test.dart
deleted file mode 100644
index c88a922f880..00000000000
--- a/tests/lib_2/async/zone_empty_description_test.dart
+++ /dev/null
@@ -1,80 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-testForkedZone(Zone forked) {
-  var result;
-  result = forked.run(() {
-    Expect.identical(forked, Zone.current);
-    return 499;
-  });
-  Expect.equals(499, result);
-  Expect.identical(Zone.root, Zone.current);
-
-  result = forked.runUnary((x) {
-    Expect.equals(42, x);
-    Expect.identical(forked, Zone.current);
-    return -499;
-  }, 42);
-  Expect.equals(-499, result);
-  Expect.identical(Zone.root, Zone.current);
-
-  bool runGuardedDidRun = false;
-  forked.runGuarded(() {
-    runGuardedDidRun = true;
-    Expect.identical(forked, Zone.current);
-  });
-  Expect.identical(Zone.root, Zone.current);
-  Expect.isTrue(runGuardedDidRun);
-
-  runGuardedDidRun = false;
-  forked.runUnaryGuarded((x) {
-    runGuardedDidRun = true;
-    Expect.equals(42, x);
-    Expect.identical(forked, Zone.current);
-  }, 42);
-  Expect.identical(Zone.root, Zone.current);
-  Expect.isTrue(runGuardedDidRun);
-
-  var callback = () => 499;
-  Expect.identical(callback, forked.registerCallback(callback));
-  Expect.identical(Zone.root, Zone.current);
-
-  var callback1 = (x) => 42 + x;
-  Expect.identical(callback1, forked.registerUnaryCallback(callback1));
-  Expect.identical(Zone.root, Zone.current);
-
-  asyncStart();
-  bool asyncDidRun = false;
-  forked.scheduleMicrotask(() {
-    Expect.identical(forked, Zone.current);
-    asyncDidRun = true;
-    asyncEnd();
-  });
-  Expect.isFalse(asyncDidRun);
-  Expect.identical(Zone.root, Zone.current);
-
-  asyncStart();
-  bool timerDidRun = false;
-  forked.createTimer(const Duration(milliseconds: 0), () {
-    Expect.identical(forked, Zone.current);
-    timerDidRun = true;
-    asyncEnd();
-  });
-  Expect.identical(Zone.root, Zone.current);
-}
-
-main() {
-  Expect.identical(Zone.root, Zone.current);
-  Zone forked = Zone.current.fork();
-  Expect.isFalse(identical(Zone.root, forked));
-  testForkedZone(forked);
-  Zone forkedChild = forked.fork();
-  testForkedZone(forkedChild);
-}
diff --git a/tests/lib_2/async/zone_error_callback_test.dart b/tests/lib_2/async/zone_error_callback_test.dart
deleted file mode 100644
index df9b9b3b3b4..00000000000
--- a/tests/lib_2/async/zone_error_callback_test.dart
+++ /dev/null
@@ -1,346 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-main() {
-  asyncStart();
-  testNoChange();
-  testWithReplacement();
-  asyncEnd();
-}
-
-class MockStack implements StackTrace {
-  final int id;
-  const MockStack(this.id);
-  String toString() => "MocKStack($id)";
-}
-
-const stack1 = const MockStack(1);
-const stack2 = const MockStack(2);
-
-class SomeError implements Error {
-  final int id;
-  const SomeError(this.id);
-  StackTrace get stackTrace => stack2;
-  String toString() => "SomeError($id)";
-}
-
-const error1 = const SomeError(1);
-const error2 = const SomeError(2);
-
-Null expectError(e, s) {
-  // Remember one asyncStart per use of this callback.
-  Expect.identical(error1, e);
-  Expect.identical(stack1, s);
-  asyncEnd();
-  return null;
-}
-
-Null expectErrorOnly(e, s) {
-  // Remember one asyncStart per use of this callback.
-  Expect.identical(error1, e);
-  asyncEnd();
-  return null;
-}
-
-AsyncError replace(self, parent, zone, e, s) {
-  if (e == "ignore") return null; // For testing handleError throwing.
-  Expect.identical(error1, e); // Ensure replacement only called once
-  return new AsyncError(error2, stack2);
-}
-
-var replaceZoneSpec = new ZoneSpecification(errorCallback: replace);
-
-// Expectation after replacing.
-Null expectReplaced(e, s) {
-  Expect.identical(error2, e);
-  Expect.identical(stack2, s);
-  asyncEnd();
-  return null;
-}
-
-void testProgrammaticErrors(expectError) {
-  {
-    asyncStart();
-    Completer c = new Completer();
-    c.future.catchError(expectError);
-    c.completeError(error1, stack1);
-  }
-
-  {
-    asyncStart();
-    StreamController controller = new StreamController();
-    controller.stream.listen(null, onError: expectError, cancelOnError: true);
-    controller.addError(error1, stack1);
-  }
-
-  {
-    asyncStart();
-    StreamController controller = new StreamController(sync: true);
-    controller.stream.listen(null, onError: expectError, cancelOnError: true);
-    controller.addError(error1, stack1);
-  }
-
-  {
-    asyncStart();
-    StreamController controller = new StreamController.broadcast();
-    controller.stream.listen(null, onError: expectError, cancelOnError: true);
-    controller.addError(error1, stack1);
-  }
-
-  {
-    asyncStart();
-    StreamController controller = new StreamController.broadcast(sync: true);
-    controller.stream.listen(null, onError: expectError, cancelOnError: true);
-    controller.addError(error1, stack1);
-  }
-
-  {
-    asyncStart();
-    StreamController controller = new StreamController();
-    controller.stream
-        .asBroadcastStream()
-        .listen(null, onError: expectError, cancelOnError: true);
-    controller.addError(error1, stack1);
-  }
-
-  {
-    asyncStart();
-    StreamController controller = new StreamController(sync: true);
-    controller.stream
-        .asBroadcastStream()
-        .listen(null, onError: expectError, cancelOnError: true);
-    controller.addError(error1, stack1);
-  }
-
-  {
-    asyncStart();
-    Future f = new Future.error(error1, stack1);
-    f.catchError(expectError);
-  }
-}
-
-void testThrownErrors(expectErrorOnly) {
-  // Throw error in non-registered callback.
-  {
-    asyncStart();
-    Future f = new Future(() => throw error1);
-    f.catchError(expectErrorOnly);
-  }
-
-  {
-    asyncStart();
-    Future f = new Future.microtask(() => throw error1);
-    f.catchError(expectErrorOnly);
-  }
-
-  {
-    asyncStart();
-    Future f = new Future.sync(() => throw error1);
-    f.catchError(expectErrorOnly);
-  }
-
-  {
-    asyncStart();
-    StreamController controller = new StreamController();
-    controller.stream
-        .map((x) => throw error1)
-        .listen(null, onError: expectErrorOnly, cancelOnError: true);
-    controller.add(null);
-  }
-
-  {
-    asyncStart();
-    StreamController controller = new StreamController();
-    controller.stream
-        .where((x) => throw error1)
-        .listen(null, onError: expectErrorOnly, cancelOnError: true);
-    controller.add(null);
-  }
-
-  {
-    asyncStart();
-    StreamController controller = new StreamController();
-    controller.stream.forEach((x) => throw error1).catchError(expectErrorOnly);
-    controller.add(null);
-  }
-
-  {
-    asyncStart();
-    StreamController controller = new StreamController();
-    controller.stream
-        .expand((x) => throw error1)
-        .listen(null, onError: expectErrorOnly, cancelOnError: true);
-    controller.add(null);
-  }
-
-  {
-    asyncStart();
-    StreamController controller = new StreamController();
-    controller.stream
-        .asyncMap((x) => throw error1)
-        .listen(null, onError: expectErrorOnly, cancelOnError: true);
-    controller.add(null);
-  }
-
-  {
-    asyncStart();
-    StreamController controller = new StreamController();
-    controller.stream
-        .asyncExpand((x) => throw error1)
-        .listen(null, onError: expectErrorOnly, cancelOnError: true);
-    controller.add(null);
-  }
-
-  {
-    asyncStart();
-    StreamController controller = new StreamController();
-    controller.stream
-        .handleError((e, s) => throw error1)
-        .listen(null, onError: expectErrorOnly, cancelOnError: true);
-    controller.addError("ignore", null);
-  }
-
-  {
-    asyncStart();
-    StreamController controller = new StreamController();
-    controller.stream
-        .skipWhile((x) => throw error1)
-        .listen(null, onError: expectErrorOnly, cancelOnError: true);
-    controller.add(null);
-  }
-
-  {
-    asyncStart();
-    StreamController controller = new StreamController();
-    controller.stream
-        .takeWhile((x) => throw error1)
-        .listen(null, onError: expectErrorOnly, cancelOnError: true);
-    controller.add(null);
-  }
-
-  {
-    asyncStart();
-    StreamController controller = new StreamController();
-    controller.stream.every((x) => throw error1).catchError(expectErrorOnly);
-    controller.add(null);
-  }
-
-  {
-    asyncStart();
-    StreamController controller = new StreamController();
-    controller.stream.any((x) => throw error1).catchError(expectErrorOnly);
-    controller.add(null);
-  }
-
-  {
-    asyncStart();
-    StreamController controller = new StreamController();
-    controller.stream
-        .firstWhere((x) => throw error1)
-        .catchError(expectErrorOnly);
-    controller.add(null);
-  }
-
-  {
-    asyncStart();
-    StreamController controller = new StreamController();
-    controller.stream
-        .lastWhere((x) => throw error1)
-        .catchError(expectErrorOnly);
-    controller.add(null);
-  }
-
-  {
-    asyncStart();
-    StreamController controller = new StreamController();
-    controller.stream
-        .singleWhere((x) => throw error1)
-        .catchError(expectErrorOnly);
-    controller.add(null);
-  }
-
-  {
-    asyncStart();
-    StreamController controller = new StreamController();
-    controller.stream
-        .reduce((x, y) => throw error1)
-        .catchError(expectErrorOnly);
-    controller.add(null);
-    controller.add(null);
-  }
-
-  {
-    asyncStart();
-    StreamController controller = new StreamController();
-    controller.stream
-        .fold(null, (x, y) => throw error1)
-        .catchError(expectErrorOnly);
-    controller.add(null);
-  }
-}
-
-testNoChange() {
-  void testTransparent() {
-    testProgrammaticErrors(expectError);
-    testThrownErrors(expectErrorOnly);
-  }
-
-  // Run directly.
-  testTransparent();
-
-  // Run in a zone that doesn't change callback.
-  runZoned(testTransparent,
-      zoneSpecification:
-          new ZoneSpecification(handleUncaughtError: (s, p, z, e, t) {}));
-
-  // Run in zone that delegates to root zone
-  runZoned(testTransparent,
-      zoneSpecification: new ZoneSpecification(
-          errorCallback: (s, p, z, e, t) => p.errorCallback(z, e, t)));
-
-  // Run in a zone that returns null from the callback.
-  runZoned(testTransparent,
-      zoneSpecification:
-          new ZoneSpecification(errorCallback: (s, p, z, e, t) => null));
-
-  // Run in zone that returns same values.
-  runZoned(testTransparent,
-      zoneSpecification: new ZoneSpecification(
-          errorCallback: (s, p, z, e, t) => new AsyncError(e, t)));
-
-  // Run in zone that returns null, inside zone that does replacement.
-  runZoned(() {
-    runZoned(testTransparent,
-        zoneSpecification:
-            new ZoneSpecification(errorCallback: (s, p, z, e, t) => null));
-  }, zoneSpecification: replaceZoneSpec);
-}
-
-void testWithReplacement() {
-  void testReplaced() {
-    testProgrammaticErrors(expectReplaced);
-    testThrownErrors(expectReplaced);
-  }
-
-  // Zone which replaces errors.
-  runZoned(testReplaced, zoneSpecification: replaceZoneSpec);
-
-  // Nested zone, only innermost gets to act.
-  runZoned(() {
-    runZoned(testReplaced, zoneSpecification: replaceZoneSpec);
-  }, zoneSpecification: replaceZoneSpec);
-
-  // Use delegation to parent which replaces.
-  runZoned(() {
-    runZoned(testReplaced,
-        zoneSpecification: new ZoneSpecification(
-            errorCallback: (s, p, z, e, t) => p.errorCallback(z, e, t)));
-  }, zoneSpecification: replaceZoneSpec);
-}
diff --git a/tests/lib_2/async/zone_fork_test.dart b/tests/lib_2/async/zone_fork_test.dart
deleted file mode 100644
index 558a8048b1c..00000000000
--- a/tests/lib_2/async/zone_fork_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-main() {
-  Completer done = new Completer();
-  List events = [];
-
-  Expect.identical(Zone.root, Zone.current);
-  Zone forked;
-  forked = Zone.current.fork(specification: new ZoneSpecification(fork:
-      (Zone self, ZoneDelegate parent, Zone origin,
-          ZoneSpecification zoneSpecification, Map mapValues) {
-    // The zone is still the same as when origin.run was invoked, which
-    // is the root zone. (The origin zone hasn't been set yet).
-    Expect.identical(Zone.root, Zone.current);
-    events.add("forked.fork");
-    var descriptionRun = zoneSpecification.run;
-    ZoneSpecification modified = new ZoneSpecification.from(zoneSpecification,
-        run: <R>(self, parent, origin, R f()) {
-      events.add("wrapped run");
-      return descriptionRun(self, parent, origin, () {
-        events.add("wrapped f");
-        return f();
-      });
-    });
-    return parent.fork(origin, modified, mapValues);
-  }));
-
-  events.add("start");
-  Zone forkedChild = forked.fork(specification: new ZoneSpecification(
-      run: <R>(Zone self, ZoneDelegate parent, Zone origin, R f()) {
-    events.add("executing child run");
-    return parent.run(origin, f);
-  }));
-
-  events.add("after child fork");
-  Expect.identical(Zone.root, Zone.current);
-
-  forkedChild.run(() {
-    events.add("child run");
-  });
-
-  events.add("after child run");
-
-  Expect.listEquals([
-    "start",
-    "forked.fork",
-    "after child fork",
-    "wrapped run",
-    "executing child run",
-    "wrapped f",
-    "child run",
-    "after child run"
-  ], events);
-}
diff --git a/tests/lib_2/async/zone_future_schedule_microtask_test.dart b/tests/lib_2/async/zone_future_schedule_microtask_test.dart
deleted file mode 100644
index b4c4cbd0711..00000000000
--- a/tests/lib_2/async/zone_future_schedule_microtask_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'package:async_helper/async_helper.dart';
-import 'catch_errors.dart';
-
-main() {
-  asyncStart();
-  Completer done = new Completer();
-
-  // Make sure that the zones use the scheduleMicrotask of their zones.
-  int scheduleMicrotaskCount = 0;
-  Completer completer;
-  Completer completer2;
-  Future future;
-  Future future2;
-  runZonedScheduleMicrotask(() {
-    completer = new Completer();
-    completer.complete(499);
-    completer2 = new Completer.sync();
-    completer2.complete(-499);
-    future = new Future.value(42);
-    future2 = new Future.error(11);
-  }, onScheduleMicrotask: (f) {
-    scheduleMicrotaskCount++;
-    scheduleMicrotask(f);
-  });
-  int openCallbackCount = 0;
-
-  openCallbackCount++;
-  completer.future.then((x) {
-    Expect.equals(499, x);
-    openCallbackCount--;
-    if (openCallbackCount == 0) done.complete();
-  });
-
-  openCallbackCount++;
-  completer2.future.then((x) {
-    Expect.equals(-499, x);
-    openCallbackCount--;
-    if (openCallbackCount == 0) done.complete();
-  });
-
-  openCallbackCount++;
-  future.then((x) {
-    Expect.equals(42, x);
-    openCallbackCount--;
-    if (openCallbackCount == 0) done.complete();
-  });
-
-  openCallbackCount++;
-  future2.catchError((x) {
-    Expect.equals(11, x);
-    openCallbackCount--;
-    if (openCallbackCount == 0) done.complete();
-  });
-
-  done.future.whenComplete(() {
-    Expect.equals(4, scheduleMicrotaskCount);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/zone_register_callback_test.dart b/tests/lib_2/async/zone_register_callback_test.dart
deleted file mode 100644
index d008920d762..00000000000
--- a/tests/lib_2/async/zone_register_callback_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-main() {
-  Completer done = new Completer();
-
-  var valueToCapture;
-  var restoredValue;
-
-  Expect.identical(Zone.root, Zone.current);
-  Zone forked = Zone.current.fork(specification: new ZoneSpecification(
-      registerCallback:
-          <R>(Zone self, ZoneDelegate parent, Zone origin, R f()) {
-    // The zone is still the same as when origin.run was invoked, which
-    // is the root zone. (The origin zone hasn't been set yet).
-    Expect.identical(Zone.current, Zone.root);
-    // Note that not forwarding is completely legal, though not encouraged.
-    var capturedValue = valueToCapture;
-    return parent.registerCallback(origin, () {
-      restoredValue = capturedValue;
-      return f();
-    });
-  }));
-
-  valueToCapture = 499;
-  var fun = () => 99;
-  var registered = forked.registerCallback<dynamic>(fun);
-  Expect.isFalse(identical(fun, registered));
-
-  // It is legal to invoke the callback in a different zone. This is, of course,
-  // extremely discouraged.
-  var result = registered();
-  Expect.equals(99, result);
-  Expect.equals(499, restoredValue);
-}
diff --git a/tests/lib_2/async/zone_register_callback_unary_test.dart b/tests/lib_2/async/zone_register_callback_unary_test.dart
deleted file mode 100644
index 5fe037da3a7..00000000000
--- a/tests/lib_2/async/zone_register_callback_unary_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-main() {
-  Completer done = new Completer();
-
-  var valueToCapture;
-  var restoredValue;
-
-  Expect.identical(Zone.root, Zone.current);
-  Zone forked = Zone.current.fork(specification: new ZoneSpecification(
-      registerUnaryCallback:
-          <R, T>(Zone self, ZoneDelegate parent, Zone origin, R f(T arg)) {
-    // The zone is still the same as when origin.run was invoked, which
-    // is the root zone. (The origin zone hasn't been set yet).
-    Expect.identical(Zone.current, Zone.root);
-    // Note that not forwarding is completely legal, though not encouraged.
-    var capturedValue = valueToCapture;
-    return parent.registerUnaryCallback(origin, (arg) {
-      restoredValue = capturedValue;
-      return f(arg);
-    });
-  }));
-
-  valueToCapture = 499;
-  var fun = (x) => x + 99;
-  var registered = forked.registerUnaryCallback(fun);
-  Expect.isFalse(identical(fun, registered));
-
-  // It is valid to invoke the callback in a different zone. This is, of course,
-  // extremely discouraged.
-  var result = registered(399);
-  Expect.equals(498, result);
-  Expect.equals(499, restoredValue);
-}
diff --git a/tests/lib_2/async/zone_root_bind_test.dart b/tests/lib_2/async/zone_root_bind_test.dart
deleted file mode 100644
index 5a545e7371e..00000000000
--- a/tests/lib_2/async/zone_root_bind_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-main() {
-  Expect.identical(Zone.root, Zone.current);
-  Zone forked = Zone.current.fork();
-  var f = Zone.current.bindCallback(() {
-    Expect.identical(Zone.root, Zone.current);
-  });
-  forked.run(() {
-    f();
-  });
-}
diff --git a/tests/lib_2/async/zone_run_guarded_test.dart b/tests/lib_2/async/zone_run_guarded_test.dart
deleted file mode 100644
index b1ea88dcce5..00000000000
--- a/tests/lib_2/async/zone_run_guarded_test.dart
+++ /dev/null
@@ -1,93 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-main() {
-  Completer done = new Completer();
-  List events = [];
-
-  // runGuarded calls run, captures the synchronous error (if any) and
-  // gives that one to handleUncaughtError.
-
-  var result;
-
-  Expect.identical(Zone.root, Zone.current);
-  Zone forked;
-  forked = Zone.current.fork(
-      specification: new ZoneSpecification(
-          run: <R>(Zone self, ZoneDelegate parent, Zone origin, R f()) {
-    // The zone is still the same as when origin.run was invoked, which
-    // is the root zone. (The origin zone hasn't been set yet).
-    Expect.identical(Zone.root, Zone.current);
-    events.add("forked.run");
-    return parent.run(origin, f);
-  }, handleUncaughtError:
-              (Zone self, ZoneDelegate parent, Zone origin, error, stackTrace) {
-    Expect.identical(Zone.root, Zone.current);
-    Expect.identical(forked, origin);
-    events.add("forked.handleUncaught $error");
-    result = 499;
-  }));
-
-  forked.runGuarded(() {
-    events.add("runGuarded 1");
-    Expect.identical(forked, Zone.current);
-    result = 42;
-  });
-  Expect.identical(Zone.root, Zone.current);
-  Expect.equals(42, result);
-  events.add("after runGuarded 1");
-
-  result = null;
-  forked.runGuarded(() {
-    events.add("runGuarded 2");
-    Expect.identical(forked, Zone.current);
-    throw 42;
-  });
-  Expect.equals(499, result);
-
-  Expect.listEquals([
-    "forked.run",
-    "runGuarded 1",
-    "after runGuarded 1",
-    "forked.run",
-    "runGuarded 2",
-    "forked.handleUncaught 42"
-  ], events);
-
-  result = null;
-  events.clear();
-  asyncStart();
-  forked.runGuarded(() {
-    Expect.identical(forked, Zone.current);
-    events.add("run closure");
-    forked.scheduleMicrotask(() {
-      events.add("run closure 2");
-      Expect.identical(forked, Zone.current);
-      done.complete(true);
-      throw 88;
-    });
-    throw 1234;
-  });
-  events.add("after nested scheduleMicrotask");
-  Expect.equals(499, result);
-
-  done.future.whenComplete(() {
-    Expect.listEquals([
-      "forked.run",
-      "run closure",
-      "forked.handleUncaught 1234",
-      "after nested scheduleMicrotask",
-      "forked.run",
-      "run closure 2",
-      "forked.handleUncaught 88"
-    ], events);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/zone_run_test.dart b/tests/lib_2/async/zone_run_test.dart
deleted file mode 100644
index 6f89937942f..00000000000
--- a/tests/lib_2/async/zone_run_test.dart
+++ /dev/null
@@ -1,96 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-main() {
-  Completer done = new Completer();
-  List events = [];
-
-  bool shouldForward = true;
-  Expect.identical(Zone.root, Zone.current);
-  Zone forked = Zone.current.fork(specification: new ZoneSpecification(
-      run: <R>(Zone self, ZoneDelegate parent, Zone origin, R f()) {
-    // The zone is still the same as when origin.run was invoked, which
-    // is the root zone. (The origin zone hasn't been set yet).
-    Expect.identical(Zone.root, Zone.current);
-    events.add("forked.run");
-    if (shouldForward) return parent.run(origin, f);
-    return 42 as R;
-  }));
-
-  events.add("zone forked");
-  Zone expectedZone = forked;
-  var result = forked.run(() {
-    Expect.identical(expectedZone, Zone.current);
-    events.add("run closure");
-    return 499;
-  });
-  Expect.equals(499, result);
-  events.add("executed run");
-
-  shouldForward = false;
-  result = forked.run(() {
-    Expect.fail("should not be invoked");
-  });
-  Expect.equals(42, result);
-  events.add("executed run2");
-
-  asyncStart();
-  shouldForward = true;
-  result = forked.run(() {
-    Expect.identical(forked, Zone.current);
-    events.add("run closure 2");
-    forked.scheduleMicrotask(() {
-      events.add("run closure 3");
-      Expect.identical(forked, Zone.current);
-      done.complete(true);
-    });
-    return 1234;
-  });
-  events.add("after nested scheduleMicrotask");
-  Expect.equals(1234, result);
-
-  done.future.whenComplete(() {
-    Expect.listEquals([
-      "zone forked",
-      "forked.run",
-      "run closure",
-      "executed run",
-      "forked.run",
-      "executed run2",
-      "forked.run",
-      "run closure 2",
-      "after nested scheduleMicrotask",
-      "forked.run",
-      "run closure 3"
-    ], events);
-    asyncEnd();
-  });
-
-  var zone1 = Zone.root.fork();
-  var zone2 = Zone.root.fork();
-  var zone3 = Zone.root.fork();
-  asyncStart();
-  asyncStart();
-  zone1.run(() {
-    var future = new Future.value();
-    zone2.run(() {
-      future.then((_) {
-        Expect.identical(zone2, Zone.current);
-        asyncEnd();
-      });
-    });
-    zone3.run(() {
-      future.then((_) {
-        Expect.identical(zone3, Zone.current);
-        asyncEnd();
-      });
-    });
-  });
-}
diff --git a/tests/lib_2/async/zone_run_unary_test.dart b/tests/lib_2/async/zone_run_unary_test.dart
deleted file mode 100644
index beb7f3271ad..00000000000
--- a/tests/lib_2/async/zone_run_unary_test.dart
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-main() {
-  Completer done = new Completer();
-  List events = [];
-
-  bool shouldForward = true;
-  Expect.identical(Zone.root, Zone.current);
-  Zone forked = Zone.current.fork(specification: new ZoneSpecification(runUnary:
-      <R, T>(Zone self, ZoneDelegate parent, Zone origin, R f(T arg), T arg) {
-    // The zone is still the same as when origin.run was invoked, which
-    // is the root zone. (The origin zone hasn't been set yet).
-    Expect.identical(Zone.current, Zone.root);
-    events.add("forked.run1");
-    if (shouldForward)
-      return parent.runUnary<R, T>(origin, f, ((arg as int) + 1) as T);
-    return 42 as R;
-  }));
-
-  events.add("zone forked");
-  Zone expectedZone = forked;
-  var result = forked.runUnary((arg) {
-    Expect.identical(expectedZone, Zone.current);
-    events.add("run closure");
-    return arg + 3;
-  }, 495);
-  Expect.equals(499, result);
-  events.add("executed run");
-
-  shouldForward = false;
-  result = forked.runUnary<int, int>((arg) {
-    Expect.fail("should not be invoked");
-  }, 99);
-  Expect.equals(42, result);
-  events.add("executed run2");
-
-  asyncStart();
-  shouldForward = true;
-  result = forked.runUnary((arg) {
-    Expect.identical(forked, Zone.current);
-    events.add("run closure 2");
-    scheduleMicrotask(() {
-      events.add("run closure 3");
-      Expect.identical(forked, Zone.current);
-      done.complete(true);
-    });
-    return -arg - 8;
-  }, 490);
-  events.add("after nested scheduleMicrotask");
-  Expect.equals(-499, result);
-
-  done.future.whenComplete(() {
-    Expect.listEquals([
-      "zone forked",
-      "forked.run1",
-      "run closure",
-      "executed run",
-      "forked.run1",
-      "executed run2",
-      "forked.run1",
-      "run closure 2",
-      "after nested scheduleMicrotask",
-      "run closure 3"
-    ], events);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/async/zone_value_test.dart b/tests/lib_2/async/zone_value_test.dart
deleted file mode 100644
index 15e2c83a90b..00000000000
--- a/tests/lib_2/async/zone_value_test.dart
+++ /dev/null
@@ -1,150 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-
-main() {
-  // Unique object.
-  var baz = new Mimic(new Object());
-  // Not so unique object that thinks it's the same as baz.
-  var mimic = new Mimic(baz.original);
-
-  // runGuarded calls run, captures the synchronous error (if any) and
-  // gives that one to handleUncaughtError.
-
-  Expect.identical(Zone.root, Zone.current);
-
-  // Create a map with various key types.
-  Map zoneValues = new Map();
-  zoneValues[#foo] = 499;
-  zoneValues["bar"] = [];
-  zoneValues[baz] = "baz";
-  zoneValues[0] = "zero!";
-  zoneValues[null] = baz;
-
-  Zone forked = Zone.current.fork(zoneValues: zoneValues);
-
-  // Values are not present when not inside the zone.
-  Expect.identical(Zone.root, Zone.current);
-  Expect.isNull(Zone.current[#foo]);
-  Expect.isNull(Zone.current["bar"]);
-  Expect.isNull(Zone.current[baz]);
-  Expect.isNull(Zone.current[mimic]);
-  Expect.isNull(Zone.current[0]);
-  Expect.isNull(Zone.current[null]);
-  Expect.isNull(Zone.current["qux"]);
-
-  // Changing the original map has no effect after the zone is created.
-  zoneValues[#foo] = -1;
-
-  // Values are available directly on the zone.
-  Expect.equals(499, forked[#foo]);
-  Expect.listEquals([], forked["bar"]);
-  Expect.equals("baz", forked[baz]);
-  Expect.equals("baz", forked[mimic]);
-  Expect.equals("zero!", forked[0]);
-  Expect.equals("zero!", forked[0.0]); // Lookup uses equality.
-  Expect.equals("zero!", forked[-0.0]);
-  Expect.equals(baz, forked[null]);
-  Expect.isNull(forked["qux"]);
-
-  forked.run(() {
-    Expect.identical(forked, Zone.current); // Sanity check.
-    // Values are present on current when inside zone.
-    Expect.equals(499, Zone.current[#foo]);
-    Expect.listEquals([], Zone.current["bar"]);
-    Expect.equals("baz", Zone.current[baz]);
-    Expect.equals("baz", Zone.current[mimic]);
-    Expect.equals("zero!", Zone.current[0]);
-    Expect.equals("zero!", Zone.current[0.0]); // Lookup uses equality.
-    Expect.equals("zero!", Zone.current[-0.0]);
-    Expect.equals(baz, Zone.current[null]);
-    Expect.isNull(Zone.current["qux"]);
-  });
-
-  // Values are still not present when not inside the zone.
-  Expect.identical(Zone.root, Zone.current);
-  Expect.isNull(Zone.current[#foo]);
-  Expect.isNull(Zone.current["bar"]);
-  Expect.isNull(Zone.current[baz]);
-  Expect.isNull(Zone.current[mimic]);
-  Expect.isNull(Zone.current[0]);
-  Expect.isNull(Zone.current[null]);
-  Expect.isNull(Zone.current["qux"]);
-
-  // Modifying the stored values work as expected.
-  zoneValues["bar"].add(42);
-
-  forked.run(() {
-    Expect.identical(forked, Zone.current); // Sanity check.
-    // Values are still there when inside the zone. The list was modified.
-    Expect.equals(499, Zone.current[#foo]);
-    Expect.listEquals([42], Zone.current["bar"]);
-    Expect.equals("baz", Zone.current[baz]);
-    Expect.equals("baz", Zone.current[mimic]);
-    Expect.equals("zero!", Zone.current[0]);
-    Expect.equals(baz, Zone.current[null]);
-    Expect.isNull(Zone.current["qux"]);
-  });
-
-  // Creating a further nested zone with new values allows keeping, overriding,
-  // and shadowing existing values from the outer zone.
-  zoneValues = new Map();
-  zoneValues[#foo] = -499; //     Values can be overridden.
-  zoneValues["bar"] = null; //    Values can be changed to null.
-  zoneValues["qux"] = 99; //      Values can be added
-  // Overriding with equal, but not identical, key is possible.
-  zoneValues[mimic] = "floo";
-  zoneValues[0.0] = "zero!ZERO!";
-
-  Zone forkedChild = forked.fork(zoneValues: zoneValues);
-
-  // New values available on zone.
-  Expect.equals(-499, forkedChild[#foo]); //         Overridden.
-  Expect.isNull(forkedChild["bar"]); //              Overridden to null.
-  Expect.equals("floo", forkedChild[baz]); //        Overridden by mimic.
-  Expect.equals("floo", forkedChild[mimic]); //      Now recognizes mimic.
-  Expect.equals("zero!ZERO!", forkedChild[0]); //    Overridden by 0.0.
-  Expect.equals("zero!ZERO!", forkedChild[0.0]); // Overriding 0.
-  Expect.equals(baz, forkedChild[null]); //          Inherited.
-  Expect.equals(99, forkedChild["qux"]); //          Added.
-
-  forkedChild.run(() {
-    Expect.identical(forkedChild, Zone.current); // Sanity check.
-    // New values available on current zone when the zone is current.
-    Expect.equals(-499, Zone.current[#foo]); //         Overridden.
-    Expect.isNull(Zone.current["bar"]); //              Overridden to null.
-    Expect.equals("floo", Zone.current[baz]); //        Overridden by mimic.
-    Expect.equals("floo", Zone.current[mimic]); //      Now recognizes mimic.
-    Expect.equals("zero!ZERO!", Zone.current[0]); //    Overridden by 0.0.
-    Expect.equals("zero!ZERO!", Zone.current[0.0]); // Overriding 0.
-    Expect.equals(baz, Zone.current[null]); //          Inherited.
-    Expect.equals(99, Zone.current["qux"]); //          Added.
-  });
-
-  // Parent zone values are unchanged.
-  Expect.equals(499, forked[#foo]);
-  Expect.listEquals([42], forked["bar"]);
-  Expect.equals("baz", forked[baz]);
-  Expect.equals("baz", forked[mimic]);
-  Expect.equals("zero!", forked[0]);
-  Expect.equals("zero!", forked[0.0]); // Lookup uses equality.
-  Expect.equals("zero!", forked[-0.0]);
-  Expect.equals(baz, forked[null]);
-  Expect.isNull(forked["qux"]);
-}
-
-// Class of objects that consider themselves equal to their originals.
-// Sees through mimicry.
-class Mimic {
-  final Object original;
-  Mimic(this.original);
-  int get hashCode => original.hashCode;
-  bool operator ==(Object other) =>
-      (other is Mimic) ? this == other.original : original == other;
-}
diff --git a/tests/lib_2/collection/hash_map_test.dart b/tests/lib_2/collection/hash_map_test.dart
deleted file mode 100644
index 98eab63e61b..00000000000
--- a/tests/lib_2/collection/hash_map_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:collection";
-import "package:expect/expect.dart";
-
-void main() {
-  // Test customized maps.
-  // Regression test for issue http://dartbug.com/18109
-
-  int hash(s) => s.toLowerCase().hashCode;
-  bool equals(a, b) => a.toLowerCase() == b.toLowerCase();
-
-  for (var m in [
-    new HashMap<String, int>(equals: equals, hashCode: hash),
-    new LinkedHashMap<String, int>(equals: equals, hashCode: hash),
-  ]) {
-    m["Abel"] = 42;
-    for (var key in ["Abel", "abel", "ABEL", "Abel"]) {
-      Expect.isTrue(m.containsKey(key), "contains $key in ${m.runtimeType} $m");
-      Expect.equals(42, m[key], "get $key in ${m.runtimeType} $m");
-      Expect.equals(42, m.remove(key), "remove $key in ${m.runtimeType} $m");
-      m[key] = 42;
-    }
-  }
-
-  int abshash(n) => n.abs();
-  bool abseq(a, b) => a.abs() == b.abs();
-  for (var m in [
-    new HashMap<int, int>(equals: abseq, hashCode: abshash),
-    new LinkedHashMap<int, int>(equals: abseq, hashCode: abshash),
-  ]) {
-    m[1] = 42;
-    for (var key in [1, -1, 1]) {
-      Expect.isTrue(m.containsKey(key), "contains $key in ${m.runtimeType} $m");
-      Expect.equals(42, m[key], "get $key in ${m.runtimeType} $m");
-      Expect.equals(42, m.remove(key), "remove $key in ${m.runtimeType} $m");
-      m[key] = 42;
-    }
-  }
-}
diff --git a/tests/lib_2/collection/hash_set_test.dart b/tests/lib_2/collection/hash_set_test.dart
deleted file mode 100644
index 67827b8a850..00000000000
--- a/tests/lib_2/collection/hash_set_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:collection";
-import "package:expect/expect.dart";
-
-void main() {
-  // Test customized sets.
-  // Regression test for issue http://dartbug.com/18109
-
-  int hash(s) => s.toLowerCase().hashCode;
-  bool equals(a, b) => a.toLowerCase() == b.toLowerCase();
-
-  for (var m in [
-    new HashSet<String>(equals: equals, hashCode: hash),
-    new LinkedHashSet<String>(equals: equals, hashCode: hash),
-  ]) {
-    m.add("Abel");
-    var prev = "Abel";
-    for (var key in ["Abel", "abel", "ABEL", "Abel"]) {
-      Expect.isTrue(m.contains(key), "contains $key in ${m.runtimeType} $m");
-      Expect.equals(prev, m.lookup(key), "lookup $key in ${m.runtimeType} $m");
-      Expect.isTrue(m.remove(key), "remove $key in ${m.runtimeType} $m");
-      m.add(key);
-      prev = key;
-    }
-  }
-
-  int abshash(n) => n.abs();
-  bool abseq(a, b) => a.abs() == b.abs();
-  for (var m in [
-    new HashSet<int>(equals: abseq, hashCode: abshash),
-    new LinkedHashSet<int>(equals: abseq, hashCode: abshash),
-  ]) {
-    m.add(1);
-    var prev = 1;
-    for (var key in [1, -1, 1]) {
-      Expect.isTrue(m.contains(key), "contains $key in ${m.runtimeType} $m");
-      Expect.equals(prev, m.lookup(key), "lookup $key in ${m.runtimeType} $m");
-      Expect.isTrue(m.remove(key), "remove $key in ${m.runtimeType} $m");
-      m.add(key);
-      prev = key;
-    }
-  }
-}
diff --git a/tests/lib_2/collection/linked_list_test.dart b/tests/lib_2/collection/linked_list_test.dart
deleted file mode 100644
index 210cd7ab839..00000000000
--- a/tests/lib_2/collection/linked_list_test.dart
+++ /dev/null
@@ -1,315 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:collection';
-import "package:expect/expect.dart";
-
-class MyEntry extends LinkedListEntry<MyEntry> {
-  final int value;
-
-  MyEntry(int this.value);
-
-  String toString() => value.toString();
-
-  int get hashCode => value.hashCode;
-  bool operator ==(Object o) => o is MyEntry && value == o.value;
-}
-
-void testPreviousNext() {
-  var list = LinkedList<MyEntry>();
-  Expect.throws(() => list.first);
-  Expect.throws(() => list.last);
-  Expect.equals(0, list.length);
-
-  for (int i = 0; i < 3; i++) {
-    list.add(MyEntry(i));
-  }
-  Expect.equals(3, list.length);
-
-  var entry = list.first;
-  Expect.isNull(entry.previous);
-  Expect.equals(0, entry.value);
-  entry = entry.next;
-  Expect.equals(1, entry.value);
-  entry = entry.next;
-  Expect.equals(2, entry.value);
-  Expect.isNull(entry.next);
-  entry = entry.previous;
-  Expect.equals(1, entry.value);
-  entry = entry.previous;
-  Expect.equals(0, entry.value);
-  Expect.isNull(entry.previous);
-}
-
-void testUnlinked() {
-  var unlinked = MyEntry(0);
-  Expect.isNull(unlinked.previous);
-  Expect.isNull(unlinked.next);
-  var list = LinkedList<MyEntry>();
-  list.add(unlinked);
-  Expect.isNull(unlinked.previous);
-  Expect.isNull(unlinked.next);
-  list.remove(unlinked);
-  Expect.isNull(unlinked.previous);
-  Expect.isNull(unlinked.next);
-  list.add(unlinked);
-  list.add(MyEntry(1));
-  Expect.isNull(unlinked.previous);
-  Expect.equals(1, unlinked.next.value);
-  list.remove(unlinked);
-  Expect.isNull(unlinked.previous);
-  Expect.isNull(unlinked.next);
-  list.add(unlinked);
-  Expect.isNull(unlinked.next);
-  Expect.equals(1, unlinked.previous.value);
-}
-
-void testInsert() {
-  // Insert last.
-  var list = LinkedList<MyEntry>();
-  for (int i = 0; i < 10; i++) {
-    list.add(MyEntry(i));
-  }
-
-  Expect.equals(10, list.length);
-
-  int i = 0;
-  for (var entry in list) {
-    Expect.equals(i, entry.value);
-    i++;
-  }
-
-  Expect.equals(10, i);
-
-  list.clear();
-
-  // Insert first.
-  for (int i = 0; i < 10; i++) {
-    list.addFirst(MyEntry(i));
-  }
-
-  Expect.equals(10, list.length);
-
-  i = 10;
-  for (var entry in list) {
-    Expect.equals(--i, entry.value);
-  }
-  Expect.equals(0, i);
-
-  list.clear();
-
-  // Insert after.
-  list.addFirst(MyEntry(0));
-  for (int i = 1; i < 10; i++) {
-    list.last.insertAfter(MyEntry(i));
-  }
-
-  Expect.equals(10, list.length);
-
-  i = 0;
-  for (var entry in list) {
-    Expect.equals(i, entry.value);
-    i++;
-  }
-
-  Expect.equals(10, i);
-
-  list.clear();
-
-  // Insert before.
-  list.addFirst(MyEntry(0));
-  for (int i = 1; i < 10; i++) {
-    list.first.insertBefore(MyEntry(i));
-  }
-
-  Expect.equals(10, list.length);
-
-  i = 10;
-  for (var entry in list) {
-    Expect.equals(--i, entry.value);
-  }
-  Expect.equals(0, i);
-
-  list.clear();
-}
-
-void testRemove() {
-  var list = LinkedList<MyEntry>();
-  for (int i = 0; i < 10; i++) {
-    list.add(MyEntry(i));
-  }
-
-  Expect.equals(10, list.length);
-
-  list.remove(list.skip(5).first);
-
-  Expect.equals(9, list.length);
-
-  int i = 0;
-  for (var entry in list) {
-    if (i == 5) i++;
-    Expect.equals(i, entry.value);
-    i++;
-  }
-
-  Expect.listEquals(
-      [0, 1, 2, 3, 4, 6, 7, 8, 9], list.map((e) => e.value).toList());
-
-  for (int i = 0; i < 9; i++) {
-    list.first.unlink();
-  }
-
-  Expect.throws(() => list.first);
-
-  Expect.equals(0, list.length);
-}
-
-void testContains() {
-  var list = LinkedList<MyEntry>();
-  var entry5 = MyEntry(5);
-
-  // Empty lists contains nothing.
-  Expect.isFalse(list.contains(null));
-  Expect.isFalse(list.contains(Object()));
-  Expect.isFalse(list.contains(entry5));
-
-  // Works for singleton lists.
-  list.add(MyEntry(0));
-  Expect.isTrue(list.contains(list.first));
-  Expect.isFalse(list.contains(null));
-  Expect.isFalse(list.contains(Object()));
-  Expect.isFalse(list.contains(entry5));
-
-  // Works for larger lists.
-  for (int i = 1; i < 10; i++) {
-    list.add(MyEntry(i));
-  }
-  for (var entry in list) {
-    Expect.isTrue(list.contains(entry));
-  }
-  Expect.isFalse(list.contains(Object()));
-  Expect.isFalse(list.contains(null));
-  Expect.isFalse(list.contains(entry5));
-  // Based on identity, not equality.
-  Expect.isTrue(list.elementAt(5) == entry5);
-}
-
-void testBadAdd() {
-  var list1 = LinkedList<MyEntry>();
-  list1.addFirst(MyEntry(0));
-
-  var list2 = LinkedList<MyEntry>();
-  Expect.throws(() => list2.addFirst(list1.first));
-
-  Expect.throws(() => MyEntry(0).unlink());
-}
-
-void testConcurrentModificationError() {
-  test(function(LinkedList<MyEntry> ll)) {
-    var ll = LinkedList<MyEntry>();
-    for (int i = 0; i < 10; i++) {
-      ll.add(MyEntry(i));
-    }
-    Expect.throws(() => function(ll), (e) => e is ConcurrentModificationError);
-  }
-
-  test((ll) {
-    for (var x in ll) {
-      ll.remove(x);
-    }
-  });
-  test((ll) {
-    ll.forEach((x) {
-      ll.remove(x);
-    });
-  });
-  test((ll) {
-    ll.any((x) {
-      ll.remove(x);
-      return false;
-    });
-  });
-  test((ll) {
-    ll.every((x) {
-      ll.remove(x);
-      return true;
-    });
-  });
-  test((ll) {
-    ll.fold(0, (x, y) {
-      ll.remove(y);
-      return x;
-    });
-  });
-  test((ll) {
-    ll.reduce((x, y) {
-      ll.remove(y);
-      return x;
-    });
-  });
-  test((ll) {
-    ll.where((x) {
-      ll.remove(x);
-      return true;
-    }).forEach((_) {});
-  });
-  test((ll) {
-    ll.map((x) {
-      ll.remove(x);
-      return x;
-    }).forEach((_) {});
-  });
-  test((ll) {
-    ll.expand((x) {
-      ll.remove(x);
-      return [x];
-    }).forEach((_) {});
-  });
-  test((ll) {
-    ll.takeWhile((x) {
-      ll.remove(x);
-      return true;
-    }).forEach((_) {});
-  });
-  test((ll) {
-    ll.skipWhile((x) {
-      ll.remove(x);
-      return true;
-    }).forEach((_) {});
-  });
-  test((ll) {
-    bool first = true;
-    ll.firstWhere((x) {
-      ll.remove(x);
-      if (!first) return true;
-      return first = false;
-    });
-  });
-  test((ll) {
-    ll.lastWhere((x) {
-      ll.remove(x);
-      return true;
-    });
-  });
-  test((ll) {
-    bool first = true;
-    ll.singleWhere((x) {
-      ll.remove(x);
-      if (!first) return false;
-      return !(first = false);
-    });
-  });
-}
-
-void main() {
-  testPreviousNext();
-  testUnlinked();
-  testInsert();
-  testRemove();
-  testContains();
-  testBadAdd();
-  testConcurrentModificationError();
-}
diff --git a/tests/lib_2/collection/list_test.dart b/tests/lib_2/collection/list_test.dart
deleted file mode 100644
index 04f7c2c9ae5..00000000000
--- a/tests/lib_2/collection/list_test.dart
+++ /dev/null
@@ -1,157 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:collection';
-import "package:expect/expect.dart";
-
-class MyList<E> extends ListBase<E> {
-  List<E> _list;
-
-  MyList(List<E> this._list);
-
-  int get length => _list.length;
-
-  void set length(int x) {
-    _list.length = x;
-  }
-
-  E operator [](int idx) => _list[idx];
-
-  void operator []=(int idx, E value) {
-    _list[idx] = value;
-  }
-}
-
-class MyNoSuchMethodList<E> extends Object
-    with ListMixin<E>
-    implements List<E> {
-  List<E> _list;
-
-  MyNoSuchMethodList(List<E> this._list);
-
-  noSuchMethod(Invocation invocation) {
-    if (invocation.memberName == #length && invocation.isGetter) {
-      return _list.length;
-    }
-    if (invocation.memberName == const Symbol("length=") &&
-        invocation.isSetter) {
-      _list.length = invocation.positionalArguments.first;
-      return null;
-    }
-    if (invocation.memberName == const Symbol("[]") &&
-        invocation.positionalArguments.length == 1) {
-      return _list[invocation.positionalArguments.first];
-    }
-    if (invocation.memberName == const Symbol("[]=") &&
-        invocation.positionalArguments.length == 2) {
-      _list[invocation.positionalArguments.first] =
-          invocation.positionalArguments[1];
-      return null;
-    }
-    return super.noSuchMethod(invocation);
-  }
-}
-
-// Class that behaves like a list but does not implement List.
-class MyIndexableNoSuchMethod<E> {
-  List<E> _list;
-
-  MyIndexableNoSuchMethod(List<E> this._list);
-
-  noSuchMethod(Invocation invocation) {
-    if (invocation.memberName == #length && invocation.isGetter) {
-      return _list.length;
-    }
-    if (invocation.memberName == const Symbol("length=") &&
-        invocation.isSetter) {
-      _list.length = invocation.positionalArguments.first;
-      return null;
-    }
-    if (invocation.memberName == const Symbol("prototype")) {
-      return 42;
-    }
-
-    if (invocation.memberName == const Symbol("[]") &&
-        invocation.positionalArguments.length == 1) {
-      return _list[invocation.positionalArguments.first];
-    }
-    if (invocation.memberName == const Symbol("[]=") &&
-        invocation.positionalArguments.length == 2) {
-      _list[invocation.positionalArguments.first] =
-          invocation.positionalArguments[1];
-      return null;
-    }
-    return super.noSuchMethod(invocation);
-  }
-}
-
-void testRetainWhere() {
-  List<int> list = <int>[1, 2, 3];
-  list.retainWhere((x) => x % 2 == 0);
-  Expect.equals(1, list.length);
-  Expect.equals(2, list.first);
-  Expect.equals(2, list[0]);
-
-  list = new MyList<int>([1, 2, 3]);
-  list.retainWhere((x) => x % 2 == 0);
-  Expect.equals(1, list.length);
-  Expect.equals(2, list.first);
-  Expect.equals(2, list[0]);
-
-  list = new MyNoSuchMethodList<int>([1, 2, 3]);
-  list.retainWhere((x) => x % 2 == 0);
-  Expect.equals(1, list.length);
-  Expect.equals(2, list.first);
-  Expect.equals(2, list[0]);
-
-  // Equivalent tests where the type of the List is known statically.
-  {
-    var l = new MyList<int>([1, 2, 3]);
-    l.retainWhere((x) => x % 2 == 0);
-    Expect.equals(1, l.length);
-    Expect.equals(2, l.first);
-    Expect.equals(2, l[0]);
-  }
-
-  {
-    var l = new MyNoSuchMethodList<int>([1, 2, 3]);
-    l.retainWhere((x) => x % 2 == 0);
-    Expect.equals(1, l.length);
-    Expect.equals(2, l.first);
-    Expect.equals(2, l[0]);
-  }
-
-  // Equivalent tests where the type of the List is not known.
-  {
-    dynamic l = new MyList<int>([1, 2, 3]);
-    l.retainWhere((x) => x % 2 == 0);
-    Expect.equals(1, l.length);
-    Expect.equals(2, l.first);
-    Expect.equals(2, l[0]);
-  }
-
-  {
-    dynamic l = new MyNoSuchMethodList<int>([1, 2, 3]);
-    l.retainWhere((x) => x % 2 == 0);
-    Expect.equals(1, l.length);
-    Expect.equals(2, l.first);
-    Expect.equals(2, l[0]);
-  }
-
-  {
-    dynamic indexable = new MyIndexableNoSuchMethod<int>([1, 2, 3]);
-    Expect.equals(3, indexable.length);
-    Expect.equals(1, indexable[0]);
-    Expect.equals(3, indexable[2]);
-    indexable.length = 2;
-    Expect.equals(2, indexable.length);
-    Expect.equals(42, indexable.prototype);
-  }
-}
-
-void main() {
-  testRetainWhere();
-}
diff --git a/tests/lib_2/collection/map_iterables_consistency_test.dart b/tests/lib_2/collection/map_iterables_consistency_test.dart
deleted file mode 100644
index 3ba421e2ed5..00000000000
--- a/tests/lib_2/collection/map_iterables_consistency_test.dart
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:collection';
-
-import 'package:expect/expect.dart';
-
-// Test that a Map's keys, values and entries iterables are consistent with
-// their map.
-//
-// While it is generally not permitted to modify a map while iterating the keys,
-// values, or entries, it is possible to iterate these collections in between
-// modifications of the map.
-//
-// See #48282
-
-void check(String kind, Map m) {
-  Expect.equals(0, m.length);
-
-  // These existing iterables
-  final keys = m.keys;
-  final values = m.values;
-  final entries = m.entries;
-
-  for (int i = 0; i < 20; i++) {
-    Expect.equals(i, m.length);
-
-    // Fresh iterables.
-    Expect.equals(i, m.keys.length);
-    Expect.equals(i, m.values.length);
-    Expect.equals(i, m.entries.length);
-
-    Expect.equals(i, List.of(m.keys).length);
-    Expect.equals(i, List.of(m.values).length);
-    Expect.equals(i, List.of(m.entries).length);
-
-    Expect.equals(i, iteratedLength(m.keys));
-    Expect.equals(i, iteratedLength(m.values));
-    Expect.equals(i, iteratedLength(m.entries));
-
-    // Existing iterables.
-    Expect.equals(i, keys.length);
-    Expect.equals(i, values.length);
-    Expect.equals(i, entries.length);
-
-    Expect.equals(i, List.of(keys).length);
-    Expect.equals(i, List.of(values).length);
-    Expect.equals(i, List.of(entries).length);
-
-    Expect.equals(i, iteratedLength(keys));
-    Expect.equals(i, iteratedLength(values));
-    Expect.equals(i, iteratedLength(entries));
-
-    m[i] = i;
-  }
-}
-
-int iteratedLength(Iterable iterable) {
-  int length = 0;
-  final iterator = iterable.iterator;
-  while (iterator.moveNext()) {
-    length++;
-  }
-  return length;
-}
-
-void main() {
-  check('Map', {});
-  check('Map.identity', Map.identity());
-  check('HashMap', HashMap());
-  check('HashMap.identity', HashMap.identity());
-  check('SplayTreeMap', SplayTreeMap());
-}
diff --git a/tests/lib_2/collection/queue_first_test.dart b/tests/lib_2/collection/queue_first_test.dart
deleted file mode 100644
index 99fe1c6549f..00000000000
--- a/tests/lib_2/collection/queue_first_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library queue.first.test;
-
-import "package:expect/expect.dart";
-import 'dart:collection' show Queue;
-
-main() {
-  Queue<int> queue1 = new Queue<int>();
-  queue1
-    ..add(11)
-    ..add(12)
-    ..add(13);
-  Queue queue2 = new Queue();
-
-  Expect.equals(11, queue1.first);
-  Expect.throwsStateError(() => queue2.first);
-}
diff --git a/tests/lib_2/collection/queue_iterator_test.dart b/tests/lib_2/collection/queue_iterator_test.dart
deleted file mode 100644
index 994de0a76df..00000000000
--- a/tests/lib_2/collection/queue_iterator_test.dart
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library queue.iterator.test;
-
-import "package:expect/expect.dart";
-import 'dart:collection' show Queue;
-
-class QueueIteratorTest {
-  static testMain() {
-    testSmallQueue();
-    testLargeQueue();
-    testEmptyQueue();
-  }
-
-  static int sum(int expected, Iterator<int> it) {
-    int count = 0;
-    while (it.moveNext()) {
-      count += it.current;
-    }
-    Expect.equals(expected, count);
-  }
-
-  static void testSmallQueue() {
-    Queue<int> queue = new Queue<int>();
-    queue.addLast(1);
-    queue.addLast(2);
-    queue.addLast(3);
-
-    Iterator<int> it = queue.iterator;
-    sum(6, it);
-    Expect.isFalse(it.moveNext());
-    Expect.isNull(it.current);
-  }
-
-  static void testLargeQueue() {
-    Queue<int> queue = new Queue<int>();
-    int count = 0;
-    for (int i = 0; i < 100; i++) {
-      count += i;
-      queue.addLast(i);
-    }
-    Iterator<int> it = queue.iterator;
-    sum(count, it);
-    Expect.isFalse(it.moveNext());
-    Expect.isNull(it.current);
-  }
-
-  static void testEmptyQueue() {
-    Queue<int> queue = new Queue<int>();
-    Iterator<int> it = queue.iterator;
-    sum(0, it);
-    Expect.isFalse(it.moveNext());
-    Expect.isNull(it.current);
-  }
-}
-
-main() {
-  QueueIteratorTest.testMain();
-}
diff --git a/tests/lib_2/collection/queue_last_test.dart b/tests/lib_2/collection/queue_last_test.dart
deleted file mode 100644
index f5575f1d478..00000000000
--- a/tests/lib_2/collection/queue_last_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library queue.last.test;
-
-import "package:expect/expect.dart";
-import 'dart:collection' show Queue;
-
-main() {
-  Queue<int> queue1 = new Queue<int>();
-  queue1
-    ..add(11)
-    ..add(12)
-    ..add(13);
-  Queue queue2 = new Queue();
-
-  Expect.equals(13, queue1.last);
-  Expect.throwsStateError(() => queue2.last);
-}
diff --git a/tests/lib_2/collection/queue_single_test.dart b/tests/lib_2/collection/queue_single_test.dart
deleted file mode 100644
index 29654c6d292..00000000000
--- a/tests/lib_2/collection/queue_single_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library queue.single.test;
-
-import "package:expect/expect.dart";
-import 'dart:collection' show Queue;
-
-main() {
-  Queue<int> queue1 = new Queue<int>();
-  queue1.add(42);
-  Queue queue2 = new Queue();
-  queue2
-    ..add(11)
-    ..add(12)
-    ..add(13);
-  Queue queue3 = new Queue();
-
-  Expect.equals(42, queue1.single);
-  Expect.throwsStateError(() => queue2.single);
-  Expect.throwsStateError(() => queue3.single);
-}
diff --git a/tests/lib_2/collection/queue_test.dart b/tests/lib_2/collection/queue_test.dart
deleted file mode 100644
index 6a903e6cfd0..00000000000
--- a/tests/lib_2/collection/queue_test.dart
+++ /dev/null
@@ -1,485 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library queue.test;
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-
-abstract class QueueTest {
-  Queue newQueue();
-  Queue newQueueFrom(Iterable iterable);
-
-  void testMain() {
-    Queue queue = newQueue();
-    checkQueue(queue, 0, 0);
-
-    queue.addFirst(1);
-    checkQueue(queue, 1, 1);
-
-    queue.addLast(10);
-    checkQueue(queue, 2, 11);
-
-    Expect.equals(10, queue.removeLast());
-    checkQueue(queue, 1, 1);
-
-    queue.addLast(10);
-    Expect.equals(1, queue.removeFirst());
-    checkQueue(queue, 1, 10);
-
-    queue.addFirst(1);
-    queue.addLast(100);
-    queue.addLast(1000);
-    Expect.equals(1000, queue.removeLast());
-    queue.addLast(1000);
-    checkQueue(queue, 4, 1111);
-
-    queue.removeFirst();
-    checkQueue(queue, 3, 1110);
-
-    int mapTest(Object value) {
-      return (value as int) ~/ 10;
-    }
-
-    bool is10(Object value) {
-      return (value == 10);
-    }
-
-    Queue mapped = newQueueFrom(queue.map(mapTest));
-    checkQueue(mapped, 3, 111);
-    checkQueue(queue, 3, 1110);
-    Expect.equals(1, mapped.removeFirst());
-    Expect.equals(100, mapped.removeLast());
-    Expect.equals(10, mapped.removeFirst());
-
-    Queue other = newQueueFrom(queue.where(is10));
-    checkQueue(other, 1, 10);
-
-    Expect.isTrue(queue.any(is10));
-
-    bool isInstanceOfInt(Object value) {
-      return (value is int);
-    }
-
-    Expect.isTrue(queue.every(isInstanceOfInt));
-
-    Expect.isFalse(queue.every(is10));
-
-    bool is1(Object value) {
-      return (value == 1);
-    }
-
-    Expect.isFalse(queue.any(is1));
-
-    queue.clear();
-    Expect.equals(0, queue.length);
-
-    Expect.throws<StateError>(queue.removeFirst);
-    Expect.equals(0, queue.length);
-
-    Expect.throws<StateError>(queue.removeLast);
-    Expect.equals(0, queue.length);
-
-    queue.addFirst(1);
-    queue.addFirst(2);
-    Expect.equals(2, queue.first);
-    Expect.equals(1, queue.last);
-
-    queue.addLast(3);
-    Expect.equals(3, queue.last);
-    bool isGreaterThanOne(Object value) {
-      return ((value as int) > 1);
-    }
-
-    other = newQueueFrom(queue.where(isGreaterThanOne));
-    checkQueue(other, 2, 5);
-
-    // Cycle through values without ever having large element count.
-    queue = newQueue();
-    queue.add(0);
-    for (int i = 0; i < 255; i++) {
-      queue.add(i + 1);
-      Expect.equals(i, queue.removeFirst());
-    }
-    Expect.equals(255, queue.removeFirst());
-    Expect.isTrue(queue.isEmpty);
-
-    testAddAll();
-    testLengthChanges();
-    testLarge();
-    testFromListToList();
-  }
-
-  void checkQueue(Queue queue, int expectedSize, int expectedSum) {
-    testLength(expectedSize, queue);
-    int sum = 0;
-    void sumElements(Object value) {
-      sum += value as int;
-    }
-
-    queue.forEach(sumElements);
-    Expect.equals(expectedSum, sum);
-  }
-
-  void testLength(int length, Queue queue) {
-    Expect.equals(length, queue.length);
-    ((length == 0) ? Expect.isTrue : Expect.isFalse)(queue.isEmpty);
-    ((length != 0) ? Expect.isTrue : Expect.isFalse)(queue.isNotEmpty);
-  }
-
-  void testAddAll() {
-    Set<int> set = new Set<int>.from([1, 2, 4]);
-    Expect.equals(3, set.length);
-
-    Queue queue1 = newQueueFrom(set);
-    Queue queue2 = newQueue();
-    Queue queue3 = newQueue();
-    testLength(3, queue1);
-    testLength(0, queue2);
-    testLength(0, queue3);
-
-    queue2.addAll(set);
-    testLength(3, queue2);
-
-    queue3.addAll(queue1);
-    testLength(3, queue3);
-
-    int sum = 0;
-    void f(e) {
-      sum += e;
-    }
-
-    set.forEach(f);
-    Expect.equals(7, sum);
-    sum = 0;
-
-    queue1.forEach(f);
-    Expect.equals(7, sum);
-    sum = 0;
-
-    queue2.forEach(f);
-    Expect.equals(7, sum);
-    sum = 0;
-
-    queue3.forEach(f);
-    Expect.equals(7, sum);
-    sum = 0;
-
-    set = new Set<int>.from([]);
-    queue1 = newQueueFrom(set);
-    queue2 = newQueue();
-    queue3 = newQueue();
-
-    queue2.addAll(set);
-    queue3.addAll(queue1);
-
-    Expect.equals(0, set.length);
-    Expect.equals(0, queue1.length);
-    Expect.equals(0, queue2.length);
-    Expect.equals(0, queue3.length);
-  }
-
-  void testLengthChanges() {
-    // Test that the length property is updated properly by
-    // modifications;
-    Queue queue = newQueue();
-    testLength(0, queue);
-
-    for (int i = 1; i <= 10; i++) {
-      queue.add(i);
-      testLength(i, queue);
-    }
-
-    for (int i = 1; i <= 10; i++) {
-      queue.addFirst(11 - i);
-      testLength(10 + i, queue);
-    }
-
-    for (int i = 1; i <= 10; i++) {
-      queue.addLast(i);
-      testLength(20 + i, queue);
-    }
-
-    queue.addAll([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);
-    testLength(40, queue);
-
-    for (int i = 1; i <= 5; i++) {
-      Expect.equals(i, queue.removeFirst());
-      testLength(40 - i, queue);
-    }
-
-    for (int i = 1; i <= 5; i++) {
-      Expect.equals(11 - i, queue.removeLast());
-      testLength(35 - i, queue);
-    }
-
-    Expect.isTrue(queue.remove(10));
-    testLength(29, queue);
-    Expect.isFalse(queue.remove(999));
-    testLength(29, queue);
-
-    queue.removeWhere((x) => x == 7);
-    testLength(26, queue);
-
-    queue.retainWhere((x) => x != 3);
-    testLength(23, queue);
-
-    Expect.listEquals(
-        [6, 8, 9, 1, 2, 4, 5, 6, 8, 9, 10, 1, 2, 4, 5, 6, 8, 9, 10, 1, 2, 4, 5],
-        queue.toList());
-
-    // Regression test: http://dartbug.com/16270
-    // These should all do nothing, and should not throw.
-    Queue emptyQueue = newQueue();
-    emptyQueue.remove(0);
-    emptyQueue.removeWhere((x) => throw "unreachable");
-    emptyQueue.retainWhere((x) => throw "unreachable");
-    Expect.equals(0, emptyQueue.length);
-  }
-
-  void testLarge() {
-    int N = 10000;
-    Set set = new Set();
-
-    Queue queue = newQueue();
-    Expect.isTrue(queue.isEmpty);
-
-    for (int i = 0; i < N; i++) {
-      queue.add(i);
-      set.add(i);
-    }
-    Expect.equals(N, queue.length);
-    Expect.isFalse(queue.isEmpty);
-
-    Expect.equals(0, queue.elementAt(0));
-    Expect.equals(N - 1, queue.elementAt(N - 1));
-    Expect.throws(() {
-      queue.elementAt(-1);
-    });
-    Expect.throws(() {
-      queue.elementAt(N);
-    });
-
-    Iterable skip1 = queue.skip(1);
-    Iterable take1 = queue.take(1);
-    Iterable mapped = queue.map((e) => -e);
-
-    for (int i = 0; i < 500; i++) {
-      Expect.equals(i, take1.first);
-      Expect.equals(i, queue.first);
-      Expect.equals(-i, mapped.first);
-      Expect.equals(i + 1, skip1.first);
-      Expect.equals(i, queue.removeFirst());
-      Expect.equals(i + 1, take1.first);
-      Expect.equals(-i - 1, mapped.first);
-      Expect.equals(N - 1 - i, queue.last);
-      Expect.equals(N - 1 - i, queue.removeLast());
-    }
-    Expect.equals(N - 1000, queue.length);
-
-    Expect.isTrue(queue.remove(N >> 1));
-    Expect.equals(N - 1001, queue.length);
-
-    queue.clear();
-    Expect.equals(0, queue.length);
-    Expect.isTrue(queue.isEmpty);
-
-    queue.addAll(set);
-    Expect.equals(N, queue.length);
-    Expect.isFalse(queue.isEmpty);
-
-    // Iterate.
-    for (var element in queue) {
-      Expect.isTrue(set.contains(element));
-    }
-
-    queue.forEach((element) {
-      Expect.isTrue(set.contains(element));
-    });
-
-    queue.addAll(set);
-    Expect.equals(N * 2, queue.length);
-    Expect.isFalse(queue.isEmpty);
-
-    queue.clear();
-    Expect.equals(0, queue.length);
-    Expect.isTrue(queue.isEmpty);
-  }
-
-  void testFromListToList() {
-    const int N = 256;
-    List list = [];
-    for (int i = 0; i < N; i++) {
-      Queue queue = newQueueFrom(list);
-
-      Expect.equals(list.length, queue.length);
-      List to = queue.toList();
-      Expect.listEquals(list, to);
-
-      queue.add(i);
-      list.add(i);
-      Expect.equals(list.length, queue.length);
-      to = queue.toList();
-      Expect.listEquals(list, to);
-    }
-  }
-}
-
-class ListQueueTest extends QueueTest {
-  Queue newQueue() => new ListQueue();
-  Queue newQueueFrom(Iterable elements) => new ListQueue.from(elements);
-
-  void testMain() {
-    super.testMain();
-    trickyTest();
-  }
-
-  void trickyTest() {
-    // Test behavior around the know growing capacities of a ListQueue.
-    Queue q = new ListQueue();
-
-    for (int i = 0; i < 255; i++) {
-      q.add(i);
-    }
-    for (int i = 0; i < 128; i++) {
-      Expect.equals(i, q.removeFirst());
-    }
-    q.add(255);
-    for (int i = 0; i < 127; i++) {
-      q.add(i);
-    }
-
-    Expect.equals(255, q.length);
-
-    // Remove element at end of internal buffer.
-    q.removeWhere((v) => v == 255);
-    // Remove element at beginning of internal buffer.
-    q.removeWhere((v) => v == 0);
-    // Remove element at both ends of internal buffer.
-    q.removeWhere((v) => v == 254 || v == 1);
-
-    Expect.equals(251, q.length);
-
-    Iterable i255 = new Iterable.generate(255, (x) => x);
-
-    q = new ListQueue();
-    q.addAll(i255);
-    Expect.listEquals(i255.toList(), q.toList());
-
-    q = new ListQueue();
-    q.addAll(i255.toList());
-    Expect.listEquals(i255.toList(), q.toList());
-
-    q = new ListQueue.from(i255);
-    for (int i = 0; i < 128; i++) q.removeFirst();
-    q.add(256);
-    q.add(0);
-    q.addAll(i255.toList());
-    Expect.equals(129 + 255, q.length);
-
-    // Test addAll that requires the queue to grow.
-    q = new ListQueue();
-    q.addAll(i255.take(35));
-    q.addAll(i255.skip(35).take(96));
-    q.addAll(i255.skip(35 + 96));
-    Expect.listEquals(i255.toList(), q.toList());
-  }
-}
-
-class DoubleLinkedQueueTest extends QueueTest {
-  Queue newQueue() => new DoubleLinkedQueue();
-  Queue newQueueFrom(Iterable elements) => new DoubleLinkedQueue.from(elements);
-
-  void testMain() {
-    super.testMain();
-    testQueueElements();
-  }
-
-  void testQueueElements() {
-    DoubleLinkedQueue<int> queue1 = new DoubleLinkedQueue<int>.from([1, 2, 3]);
-    DoubleLinkedQueue<int> queue2 = new DoubleLinkedQueue<int>();
-    queue2.addAll(queue1);
-
-    Expect.equals(queue1.length, queue2.length);
-    DoubleLinkedQueueEntry<int> entry1 = queue1.firstEntry();
-    DoubleLinkedQueueEntry<int> entry2 = queue2.firstEntry();
-    while (entry1 != null) {
-      Expect.notIdentical(entry1, entry2);
-      entry1 = entry1.nextEntry();
-      entry2 = entry2.nextEntry();
-    }
-    Expect.isNull(entry2);
-
-    var firstEntry = queue1.firstEntry();
-    var secondEntry = queue1.firstEntry().nextEntry();
-    var thirdEntry = queue1.lastEntry();
-    firstEntry.prepend(4);
-    firstEntry.append(5);
-    secondEntry.prepend(6);
-    secondEntry.append(7);
-    thirdEntry.prepend(8);
-    thirdEntry.append(9);
-    Expect.equals(9, queue1.length);
-    Expect.listEquals([4, 1, 5, 6, 2, 7, 8, 3, 9], queue1.toList());
-    Expect.equals(1, firstEntry.remove());
-    Expect.equals(2, secondEntry.remove());
-    Expect.equals(3, thirdEntry.remove());
-    Expect.equals(6, queue1.length);
-    Expect.listEquals([4, 5, 6, 7, 8, 9], queue1.toList());
-
-    var elements = [];
-    queue1.forEachEntry((entry) {
-      elements.add(entry.element);
-      entry.remove(); // Can remove while iterating.
-    });
-    Expect.listEquals([4, 5, 6, 7, 8, 9], elements);
-    Expect.isTrue(queue1.isEmpty);
-  }
-}
-
-void linkEntryTest() {
-  var entry = new DoubleLinkedQueueEntry(42);
-  Expect.isNull(entry.previousEntry());
-  Expect.isNull(entry.nextEntry());
-
-  entry.append(37);
-  entry.prepend(87);
-  var prev = entry.previousEntry();
-  var next = entry.nextEntry();
-  Expect.equals(42, entry.element);
-  Expect.equals(37, next.element);
-  Expect.equals(87, prev.element);
-  Expect.identical(entry, prev.nextEntry());
-  Expect.identical(entry, next.previousEntry());
-  Expect.isNull(next.nextEntry());
-  Expect.isNull(prev.previousEntry());
-
-  entry.element = 117;
-  Expect.equals(117, entry.element);
-  Expect.identical(next, entry.nextEntry());
-  Expect.identical(prev, entry.previousEntry());
-
-  Expect.equals(117, entry.remove());
-  Expect.identical(next, prev.nextEntry());
-  Expect.identical(prev, next.previousEntry());
-  Expect.isNull(next.nextEntry());
-  Expect.isNull(prev.previousEntry());
-  Expect.equals(37, next.element);
-  Expect.equals(87, prev.element);
-
-  Expect.equals(37, next.remove());
-  Expect.equals(87, prev.element);
-  Expect.isNull(prev.nextEntry());
-  Expect.isNull(prev.previousEntry());
-
-  Expect.equals(87, prev.remove());
-}
-
-main() {
-  new DoubleLinkedQueueTest().testMain();
-  new ListQueueTest().testMain();
-  linkEntryTest();
-}
diff --git a/tests/lib_2/convert/ascii_test.dart b/tests/lib_2/convert/ascii_test.dart
deleted file mode 100644
index fa72dc6818e..00000000000
--- a/tests/lib_2/convert/ascii_test.dart
+++ /dev/null
@@ -1,188 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:convert';
-
-var asciiStrings = [
-  "pure ascii",
-  "\x00 with control characters \n",
-  "\x01 edge cases \x7f"
-];
-
-var nonAsciiStrings = [
-  "\x80 edge case first",
-  "Edge case ASCII \u{80}",
-  "Edge case byte \u{ff}",
-  "Edge case super-BMP \u{10000}"
-];
-
-void main() {
-  // Build longer versions of the example strings.
-  for (int i = 0, n = asciiStrings.length; i < n; i++) {
-    var string = asciiStrings[i];
-    while (string.length < 1024) {
-      string += string;
-    }
-    asciiStrings.add(string);
-  }
-  for (int i = 0, n = nonAsciiStrings.length; i < n; i++) {
-    var string = nonAsciiStrings[i];
-    while (string.length < 1024) {
-      string += string;
-    }
-    nonAsciiStrings.add(string);
-  }
-  testDirectConversions();
-  testChunkedConversions();
-}
-
-void testDirectConversions() {
-  for (var codec in [ascii, new AsciiCodec()]) {
-    for (var asciiString in asciiStrings) {
-      List bytes = codec.encoder.convert(asciiString);
-      Expect.listEquals(asciiString.codeUnits.toList(), bytes, asciiString);
-      String roundTripString = codec.decoder.convert(bytes);
-      Expect.equals(asciiString, roundTripString);
-      roundTripString = codec.decode(bytes);
-      Expect.equals(asciiString, roundTripString);
-    }
-
-    for (var nonAsciiString in nonAsciiStrings) {
-      Expect.throws(() {
-        print(codec.encoder.convert(nonAsciiString));
-      }, null, nonAsciiString);
-    }
-
-    var encode = codec.encoder.convert;
-    Expect.listEquals([0x42, 0x43, 0x44], encode("ABCDE", 1, 4));
-    Expect.listEquals([0x42, 0x43, 0x44, 0x45], encode("ABCDE", 1));
-    Expect.listEquals([0x42, 0x43, 0x44], encode("\xffBCD\xff", 1, 4));
-    Expect.throws(() {
-      encode("\xffBCD\xff", 0, 4);
-    });
-    Expect.throws(() {
-      encode("\xffBCD\xff", 1);
-    });
-    Expect.throws(() {
-      encode("\xffBCD\xff", 1, 5);
-    });
-    Expect.throws(() {
-      encode("\xffBCD\xff", -1, 4);
-    });
-    Expect.throws(() {
-      encode("\xffBCD\xff", 1, -1);
-    });
-    Expect.throws(() {
-      encode("\xffBCD\xff", 3, 2);
-    });
-
-    var decode = codec.decoder.convert;
-    Expect.equals("BCD", decode([0x41, 0x42, 0x43, 0x44, 0x45], 1, 4));
-    Expect.equals("BCDE", decode([0x41, 0x42, 0x43, 0x44, 0x45], 1));
-    Expect.equals("BCD", decode([0xFF, 0x42, 0x43, 0x44, 0xFF], 1, 4));
-    Expect.throws(() {
-      decode([0xFF, 0x42, 0x43, 0x44, 0xFF], 0, 4);
-    });
-    Expect.throws(() {
-      decode([0xFF, 0x42, 0x43, 0x44, 0xFF], 1);
-    });
-    Expect.throws(() {
-      decode([0xFF, 0x42, 0x43, 0x44, 0xFF], 1, 5);
-    });
-    Expect.throws(() {
-      decode([0xFF, 0x42, 0x43, 0x44, 0xFF], -1, 4);
-    });
-    Expect.throws(() {
-      decode([0xFF, 0x42, 0x43, 0x44, 0xFF], 1, -1);
-    });
-    Expect.throws(() {
-      decode([0xFF, 0x42, 0x43, 0x44, 0xFF], 3, 2);
-    });
-  }
-
-  var allowInvalidCodec = new AsciiCodec(allowInvalid: true);
-  var invalidBytes = [0, 1, 0xff, 0xdead, 0];
-  String decoded = allowInvalidCodec.decode(invalidBytes);
-  Expect.equals("\x00\x01\uFFFD\uFFFD\x00", decoded);
-  decoded = allowInvalidCodec.decoder.convert(invalidBytes);
-  Expect.equals("\x00\x01\uFFFD\uFFFD\x00", decoded);
-  decoded = ascii.decode(invalidBytes, allowInvalid: true);
-  Expect.equals("\x00\x01\uFFFD\uFFFD\x00", decoded);
-}
-
-List<int> encode(
-    String str, int chunkSize, Converter<String, List<int>> converter) {
-  List<int> bytes = <int>[];
-  var byteSink = new ByteConversionSink.withCallback(bytes.addAll);
-  var stringConversionSink = converter.startChunkedConversion(byteSink);
-  for (int i = 0; i < str.length; i += chunkSize) {
-    if (i + chunkSize <= str.length) {
-      stringConversionSink.add(str.substring(i, i + chunkSize));
-    } else {
-      stringConversionSink.add(str.substring(i));
-    }
-  }
-  stringConversionSink.close();
-  return bytes;
-}
-
-String decode(
-    List<int> bytes, int chunkSize, Converter<List<int>, String> converter) {
-  StringBuffer buf = new StringBuffer();
-  var stringSink = new StringConversionSink.fromStringSink(buf);
-  var byteConversionSink = converter.startChunkedConversion(stringSink);
-  for (int i = 0; i < bytes.length; i += chunkSize) {
-    if (i + chunkSize <= bytes.length) {
-      byteConversionSink.add(bytes.sublist(i, i + chunkSize));
-    } else {
-      byteConversionSink.add(bytes.sublist(i));
-    }
-  }
-  byteConversionSink.close();
-  return buf.toString();
-}
-
-void testChunkedConversions() {
-  // Check encoding.
-  for (var converter in [
-    ascii.encoder,
-    new AsciiCodec().encoder,
-    new AsciiEncoder()
-  ]) {
-    for (int chunkSize in [1, 2, 5, 50]) {
-      for (var asciiString in asciiStrings) {
-        var units = asciiString.codeUnits.toList();
-        List bytes = encode(asciiString, chunkSize, converter);
-        Expect.listEquals(units, bytes);
-      }
-      for (var nonAsciiString in nonAsciiStrings) {
-        Expect.throws(() {
-          encode(nonAsciiString, chunkSize, converter);
-        });
-      }
-    }
-  }
-  // Check decoding.
-  for (var converter in [
-    ascii.decoder,
-    new AsciiCodec().decoder,
-    new AsciiDecoder()
-  ]) {
-    for (int chunkSize in [1, 2, 5, 50]) {
-      for (var asciiString in asciiStrings) {
-        var units = asciiString.codeUnits.toList();
-        Expect.equals(asciiString, decode(units, chunkSize, converter));
-      }
-      for (var nonAsciiString in nonAsciiStrings) {
-        var units = nonAsciiString.codeUnits.toList();
-        Expect.throws(() {
-          decode(units, chunkSize, converter);
-        });
-      }
-    }
-  }
-}
diff --git a/tests/lib_2/convert/base64_test.dart b/tests/lib_2/convert/base64_test.dart
deleted file mode 100644
index fdc10d9da8b..00000000000
--- a/tests/lib_2/convert/base64_test.dart
+++ /dev/null
@@ -1,300 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:convert';
-import "dart:typed_data";
-import "package:expect/expect.dart";
-
-main() {
-  for (var list in [
-    <int>[],
-    [0x00],
-    [0xff, 0x00],
-    [0xff, 0xaa, 0x55],
-    [0x00, 0x01, 0x02, 0x03],
-    new Iterable<int>.generate(13).toList(),
-    new Iterable<int>.generate(254).toList(),
-    new Iterable<int>.generate(255).toList(),
-    new Iterable<int>.generate(256).toList()
-  ]) {
-    testRoundtrip(list, "List#${list.length}");
-    testRoundtrip(new Uint8List.fromList(list), "Uint8List#${list.length}");
-  }
-  testErrors();
-  testIssue25577();
-
-  // Decoder is lenient with mixed styles.
-  Expect.listEquals([0xfb, 0xff, 0xbf, 0x00], base64.decode("-_+/AA%3D="));
-  Expect.listEquals([0xfb, 0xff, 0xbf, 0x00], base64.decode("-_+/AA=%3D"));
-}
-
-void testRoundtrip(List<int> list, String name) {
-  // Direct.
-  String encodedNormal = base64.encode(list);
-  String encodedPercent = encodedNormal.replaceAll("=", "%3D");
-  String uriEncoded = base64Url.encode(list);
-  String expectedUriEncoded =
-      encodedNormal.replaceAll("+", "-").replaceAll("/", "_");
-  Expect.equals(expectedUriEncoded, uriEncoded);
-
-  List result = base64.decode(encodedNormal);
-  Expect.listEquals(list, result, name);
-  result = base64.decode(encodedPercent);
-  Expect.listEquals(list, result, name);
-  result = base64.decode(uriEncoded);
-  Expect.listEquals(list, result, name);
-
-  int increment = list.length ~/ 7 + 1;
-  // Chunked.
-  for (int i = 0; i < list.length; i += increment) {
-    for (int j = i; j < list.length; j += increment) {
-      // Normal
-      {
-        // Using add/close
-        var results;
-        var sink = new ChunkedConversionSink<String>.withCallback((v) {
-          results = v;
-        });
-        var encoder = base64.encoder.startChunkedConversion(sink);
-        encoder.add(list.sublist(0, i));
-        encoder.add(list.sublist(i, j));
-        encoder.add(list.sublist(j, list.length));
-        encoder.close();
-        var name = "0-$i-$j-${list.length}: list";
-        Expect.equals(encodedNormal, results.join(""), name);
-      }
-      {
-        // Using addSlice
-        var results;
-        var sink = new ChunkedConversionSink<String>.withCallback((v) {
-          results = v;
-        });
-        var encoder = base64.encoder.startChunkedConversion(sink);
-        encoder.addSlice(list, 0, i, false);
-        encoder.addSlice(list, i, j, false);
-        encoder.addSlice(list, j, list.length, true);
-        var name = "0-$i-$j-${list.length}: $list";
-        Expect.equals(encodedNormal, results.join(""), name);
-      }
-      // URI
-      {
-        // Using add/close
-        var results;
-        var sink = new ChunkedConversionSink<String>.withCallback((v) {
-          results = v;
-        });
-        var encoder = base64Url.encoder.startChunkedConversion(sink);
-        encoder.add(list.sublist(0, i));
-        encoder.add(list.sublist(i, j));
-        encoder.add(list.sublist(j, list.length));
-        encoder.close();
-        var name = "0-$i-$j-${list.length}: list";
-        Expect.equals(uriEncoded, results.join(""), name);
-      }
-      {
-        // Using addSlice
-        var results;
-        var sink = new ChunkedConversionSink<String>.withCallback((v) {
-          results = v;
-        });
-        var encoder = base64Url.encoder.startChunkedConversion(sink);
-        encoder.addSlice(list, 0, i, false);
-        encoder.addSlice(list, i, j, false);
-        encoder.addSlice(list, j, list.length, true);
-        var name = "0-$i-$j-${list.length}: $list";
-        Expect.equals(uriEncoded, results.join(""), name);
-      }
-    }
-  }
-  // Using .encode
-  Expect.equals(uriEncoded, base64Url.encode(list), ".encode($list)");
-  // Using base64UrlEncode
-  Expect.equals(uriEncoded, base64UrlEncode(list), ".encode($list)");
-
-  for (var encoded in [encodedNormal, encodedPercent, uriEncoded]) {
-    increment = encoded.length ~/ 7 + 1;
-    for (int i = 0; i < encoded.length; i += increment) {
-      for (int j = i; j < encoded.length; j += increment) {
-        {
-          // Using add/close
-          List<List<int>> results;
-          var sink = new ChunkedConversionSink<List<int>>.withCallback((v) {
-            results = v;
-          });
-          var decoder = base64.decoder.startChunkedConversion(sink);
-          decoder.add(encoded.substring(0, i));
-          decoder.add(encoded.substring(i, j));
-          decoder.add(encoded.substring(j, encoded.length));
-          decoder.close();
-          var name = "0-$i-$j-${encoded.length}: $encoded";
-          Expect.listEquals(list, results.expand((x) => x).toList(), name);
-        }
-        {
-          // Using addSlice
-          List<List<int>> results;
-          var sink = new ChunkedConversionSink<List<int>>.withCallback((v) {
-            results = v;
-          });
-          var decoder = base64.decoder.startChunkedConversion(sink);
-          decoder.addSlice(encoded, 0, i, false);
-          decoder.addSlice(encoded, i, j, false);
-          decoder.addSlice(encoded, j, encoded.length, true);
-          var name = "0-$i-$j-${encoded.length}: $encoded";
-          Expect.listEquals(list, results.expand((x) => x).toList(), name);
-        }
-      }
-    }
-    Expect.listEquals(list, base64.decode(encoded), ".decode($encoded)");
-    Expect.listEquals(list, base64Url.decode(encoded), "url.decode($encoded)");
-    Expect.listEquals(list, base64Decode(encoded), "base64Decode($encoded)");
-  }
-}
-
-void testErrors() {
-  void badChunkDecode(List<String> list) {
-    Expect.throwsFormatException(() {
-      var sink = new ChunkedConversionSink<List<int>>.withCallback((v) {
-        Expect.fail("Should have thrown: chunk $list");
-      });
-      var c = base64.decoder.startChunkedConversion(sink);
-      for (String string in list) {
-        c.add(string);
-      }
-      c.close();
-    }, "chunk $list");
-  }
-
-  void badDecode(String string) {
-    Expect.throwsFormatException(() => base64.decode(string), string);
-    Expect.throwsFormatException(() => base64Url.decode(string), string);
-    badChunkDecode([string]);
-    badChunkDecode(["", string]);
-    badChunkDecode([string, ""]);
-    badChunkDecode([string, "", ""]);
-    badChunkDecode(["", string, ""]);
-  }
-
-  badDecode("A");
-  badDecode("AA");
-  badDecode("AAA");
-  badDecode("AAAAA");
-  badDecode("AAAAAA");
-  badDecode("AAAAAAA");
-  badDecode("AAAA=");
-  badDecode("AAAA==");
-  badDecode("AAAA===");
-  badDecode("AAAA====");
-  badDecode("AAAA%");
-  badDecode("AAAA%3");
-  badDecode("AAAA%3D");
-  badDecode("AAA%3D%");
-  badDecode("AAA%3D=");
-  badDecode("A=");
-  badDecode("A=A");
-  badDecode("A==");
-  badDecode("A==A");
-  badDecode("A===");
-  badDecode("====");
-  badDecode("AA=");
-  badDecode("AA%=");
-  badDecode("AA%3");
-  badDecode("AA%3D");
-  badDecode("AA===");
-  badDecode("AAA==");
-  badDecode("AAA=AAAA");
-  badDecode("AAA\x00");
-  badDecode("AAA=\x00");
-  badDecode("AAA\x80");
-  badDecode("AAA\xFF");
-  badDecode("AAA\u{141}");
-  badDecode("AAA\u{1041}");
-  badDecode("AAA\u{10041}");
-  badDecode("AA\u{141}=");
-  badDecode("AA\u{1041}=");
-  badDecode("AA\u{10041}=");
-
-  var alphabet =
-      "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz+/-_";
-  var units = alphabet.codeUnits;
-  for (int i = 0; i < 128; i++) {
-    if (!units.contains(i)) {
-      badDecode(new String.fromCharCode(i) * 4);
-    }
-  }
-
-  badChunkDecode(["A", "A"]);
-  badChunkDecode(["A", "A", "A"]);
-  badChunkDecode(["A", "A", "="]);
-  badChunkDecode(["A", "A", "=", ""]);
-  badChunkDecode(["A", "A", "=", "=", "="]);
-  badChunkDecode(["AAA", "=="]);
-  badChunkDecode(["A", "A", "A"]);
-  badChunkDecode(["AAA", ""]);
-  badChunkDecode(["AA=", ""]);
-  badChunkDecode(["AB==", ""]);
-
-  badChunkEncode(List<int> list) {
-    for (int i = 0; i < list.length; i++) {
-      for (int j = 0; j < list.length; j++) {
-        Expect.throwsArgumentError(() {
-          var sink = new ChunkedConversionSink<String>.withCallback((v) {
-            Expect.fail("Should have thrown: chunked $list");
-          });
-          var c = base64.encoder.startChunkedConversion(sink);
-          c.add(list.sublist(0, i));
-          c.add(list.sublist(i, j));
-          c.add(list.sublist(j, list.length));
-          c.close();
-        }, "chunk $list");
-      }
-    }
-    for (int i = 0; i < list.length; i++) {
-      for (int j = 0; j < list.length; j++) {
-        Expect.throwsArgumentError(() {
-          var sink = new ChunkedConversionSink<String>.withCallback((v) {
-            Expect.fail("Should have thrown: chunked $list");
-          });
-          var c = base64.encoder.startChunkedConversion(sink);
-          c.addSlice(list, 0, i, false);
-          c.addSlice(list, i, j, false);
-          c.addSlice(list, j, list.length, true);
-        }, "chunk $list");
-      }
-    }
-  }
-
-  void badEncode(int invalid) {
-    Expect.throwsArgumentError(() => base64.encode([invalid]), "$invalid");
-    Expect.throwsArgumentError(
-        () => base64.encode([0, invalid, 0]), "$invalid");
-    badChunkEncode([invalid]);
-    badChunkEncode([0, invalid]);
-    badChunkEncode([0, 0, invalid]);
-    badChunkEncode([0, invalid, 0]);
-    badChunkEncode([invalid, 0, 0]);
-  }
-
-  badEncode(-1);
-  badEncode(0x100);
-  badEncode(0x1000);
-  badEncode(0x10000);
-  badEncode(0x100000000); //         //# 01: ok
-  badEncode(0x7000000000000000); //  //# 01: continued
-}
-
-void testIssue25577() {
-  // Regression test for http://dartbug.com/25577.
-  StringConversionSink decodeSink =
-      base64.decoder.startChunkedConversion(new TestSink<List<int>>());
-  ByteConversionSink encodeSink =
-      base64.encoder.startChunkedConversion(new TestSink<String>());
-}
-
-// Implementation of Sink<T> to test type constraints.
-class TestSink<T> implements Sink<T> {
-  void add(T value) {}
-  void close() {}
-}
diff --git a/tests/lib_2/convert/chunked_conversion1_test.dart b/tests/lib_2/convert/chunked_conversion1_test.dart
deleted file mode 100644
index c998f548658..00000000000
--- a/tests/lib_2/convert/chunked_conversion1_test.dart
+++ /dev/null
@@ -1,261 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:convert';
-
-import 'package:expect/expect.dart';
-
-// This test implements a new special interface that can be used to
-// send data more efficiently between two converters.
-
-abstract class MyChunkedIntSink implements ChunkedConversionSink<int> {
-  MyChunkedIntSink();
-  factory MyChunkedIntSink.from(sink) = IntAdapterSink;
-  factory MyChunkedIntSink.withCallback(callback) {
-    var sink = new ChunkedConversionSink.withCallback(callback);
-    return new MyChunkedIntSink.from(sink);
-  }
-
-  add(int i);
-  close();
-
-  // The special method.
-  void specialI(int i);
-}
-
-class IntAdapterSink extends MyChunkedIntSink {
-  final _sink;
-  IntAdapterSink(this._sink);
-  add(o) => _sink.add(o);
-  close() => _sink.close();
-  void specialI(int o) => add(o);
-}
-
-abstract class MyChunkedBoolSink implements ChunkedConversionSink<bool> {
-  MyChunkedBoolSink();
-  factory MyChunkedBoolSink.from(sink) = BoolAdapterSink;
-  factory MyChunkedBoolSink.withCallback(callback) {
-    var sink = new ChunkedConversionSink.withCallback(callback);
-    return new MyChunkedBoolSink.from(sink);
-  }
-
-  add(bool b);
-  close();
-
-  specialB(bool b);
-}
-
-class BoolAdapterSink extends MyChunkedBoolSink {
-  final _sink;
-  BoolAdapterSink(this._sink);
-  add(o) => _sink.add(o);
-  close() => _sink.close();
-  specialB(o) => add(o);
-}
-
-class IntBoolConverter1 extends Converter<int, bool> {
-  bool convert(int input) => input > 0;
-
-  startChunkedConversion(sink) {
-    if (sink is! MyChunkedBoolSink) sink = new MyChunkedBoolSink.from(sink);
-    return new IntBoolConverter1Sink(sink);
-  }
-}
-
-class BoolIntConverter1 extends Converter<bool, int> {
-  int convert(bool input) => input ? 1 : 0;
-
-  startChunkedConversion(sink) {
-    if (sink is! MyChunkedIntSink) sink = new MyChunkedIntSink.from(sink);
-    return new BoolIntConverter1Sink(sink);
-  }
-}
-
-int specialICounter = 0;
-int specialBCounter = 0;
-
-class IntBoolConverter1Sink extends MyChunkedIntSink {
-  var outSink;
-  IntBoolConverter1Sink(this.outSink);
-
-  add(int i) {
-    outSink.specialB(i > 0);
-  }
-
-  void specialI(int i) {
-    specialICounter++;
-    add(i);
-  }
-
-  close() => outSink.close();
-}
-
-class BoolIntConverter1Sink extends MyChunkedBoolSink {
-  var outSink;
-  BoolIntConverter1Sink(this.outSink);
-
-  add(bool b) {
-    outSink.specialI(b ? 1 : 0);
-  }
-
-  specialB(bool b) {
-    specialBCounter++;
-    add(b);
-  }
-
-  close() => outSink.close();
-}
-
-class IdentityConverter<T> extends Converter<T, T> {
-  T convert(T x) => x;
-
-  startChunkedConversion(sink) {
-    return new IdentitySink<T>(sink);
-  }
-}
-
-class IdentitySink<T> implements ChunkedConversionSink<T> {
-  final _sink;
-  IdentitySink(this._sink);
-  void add(T o) => _sink.add(o);
-  close() => _sink.close();
-}
-
-main() {
-  var intSink, boolSink, sink, sink2;
-
-  // Test int->bool converter individually.
-  Converter<int, bool> int2boolConverter = new IntBoolConverter1();
-  Expect.listEquals(
-      [true, false, true], [2, -2, 2].map(int2boolConverter.convert).toList());
-  var hasExecuted = false;
-  boolSink = new MyChunkedBoolSink.withCallback((value) {
-    hasExecuted = true;
-    Expect.listEquals([true, false, true], value);
-  });
-  intSink = int2boolConverter.startChunkedConversion(boolSink);
-  intSink.add(3);
-  intSink.specialI(-3);
-  intSink.add(3);
-  intSink.close();
-  Expect.isTrue(hasExecuted);
-  Expect.equals(1, specialICounter);
-  specialICounter = 0;
-  hasExecuted = false;
-
-  // Test bool->int converter individually.
-  Converter<bool, int> bool2intConverter = new BoolIntConverter1();
-  Expect.listEquals(
-      [1, 0, 1], [true, false, true].map(bool2intConverter.convert).toList());
-  hasExecuted = false;
-  intSink = new MyChunkedIntSink.withCallback((value) {
-    hasExecuted = true;
-    Expect.listEquals([1, 0, 1], value);
-  });
-  boolSink = bool2intConverter.startChunkedConversion(intSink);
-  boolSink.specialB(true);
-  boolSink.add(false);
-  boolSink.add(true);
-  boolSink.close();
-  Expect.isTrue(hasExecuted);
-  Expect.equals(1, specialBCounter);
-  specialBCounter = 0;
-  hasExecuted = false;
-
-  // Test identity converter individually.
-  var identityConverter = new IdentityConverter();
-  hasExecuted = false;
-  sink = new ChunkedConversionSink.withCallback((value) {
-    hasExecuted = true;
-    Expect.listEquals([1, 2, 3], value);
-  });
-  sink2 = identityConverter.startChunkedConversion(sink);
-  [1, 2, 3].forEach(sink2.add);
-  sink2.close();
-  Expect.isTrue(hasExecuted);
-  hasExecuted = false;
-
-  // Test fused converters.
-  Converter<int, int> fused = int2boolConverter.fuse(bool2intConverter);
-  Expect.listEquals([1, 0, 1], [2, -2, 2].map(fused.convert).toList());
-  hasExecuted = false;
-  Sink<int> intSink2 = new MyChunkedIntSink.withCallback((value) {
-    hasExecuted = true;
-    Expect.listEquals([1, 0, 1], value);
-  });
-  intSink = fused.startChunkedConversion(intSink2);
-  intSink.specialI(3);
-  intSink.add(-3);
-  intSink.add(3);
-  intSink.close();
-  Expect.isTrue(hasExecuted);
-  Expect.equals(3, specialBCounter);
-  specialBCounter = 0;
-  Expect.equals(1, specialICounter);
-  specialICounter = 0;
-  hasExecuted = false;
-
-  // With identity in front.
-  Converter<int, int> fused2 = new IdentityConverter<int>().fuse(fused);
-  hasExecuted = false;
-  intSink2 = new MyChunkedIntSink.withCallback((value) {
-    hasExecuted = true;
-    Expect.listEquals([1, 0, 1], value);
-  });
-  sink = fused2.startChunkedConversion(intSink2);
-  Expect.isFalse(sink is MyChunkedIntSink);
-  sink.add(3);
-  sink.add(-3);
-  sink.add(3);
-  sink.close();
-  Expect.isTrue(hasExecuted);
-  Expect.equals(3, specialBCounter);
-  specialBCounter = 0;
-  Expect.equals(0, specialICounter);
-  specialICounter = 0;
-  hasExecuted = false;
-
-  // With identity at the end.
-  fused2 = fused.fuse(new IdentityConverter());
-  hasExecuted = false;
-  sink = new ChunkedConversionSink<int>.withCallback((value) {
-    hasExecuted = true;
-    Expect.listEquals([1, 0, 1], value);
-  });
-  intSink = fused2.startChunkedConversion(sink);
-  Expect.isTrue(intSink is MyChunkedIntSink);
-  intSink.specialI(3);
-  intSink.add(-3);
-  intSink.specialI(3);
-  intSink.close();
-  Expect.isTrue(hasExecuted);
-  Expect.equals(3, specialBCounter);
-  specialBCounter = 0;
-  Expect.equals(2, specialICounter);
-  specialICounter = 0;
-  hasExecuted = false;
-
-  // With identity between the two converters.
-  fused =
-      int2boolConverter.fuse(new IdentityConverter()).fuse(bool2intConverter);
-  Expect.listEquals([1, 0, 1], [2, -2, 2].map(fused.convert).toList());
-  hasExecuted = false;
-  intSink2 = new MyChunkedIntSink.withCallback((value) {
-    hasExecuted = true;
-    Expect.listEquals([1, 0, 1], value);
-  });
-  intSink = fused.startChunkedConversion(intSink2);
-  intSink.specialI(3);
-  intSink.add(-3);
-  intSink.add(3);
-  intSink.close();
-  Expect.isTrue(hasExecuted);
-  Expect.equals(0, specialBCounter);
-  specialBCounter = 0;
-  Expect.equals(1, specialICounter);
-  specialICounter = 0;
-  hasExecuted = false;
-}
diff --git a/tests/lib_2/convert/chunked_conversion2_test.dart b/tests/lib_2/convert/chunked_conversion2_test.dart
deleted file mode 100644
index ca6336c4a69..00000000000
--- a/tests/lib_2/convert/chunked_conversion2_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:convert';
-
-import 'package:expect/expect.dart';
-
-// Test that the String and ByteConversionSinks make a copy when they need to
-// adapt.
-
-class MyByteSink extends ByteConversionSink {
-  var accumulator = [];
-  add(List<int> bytes) {
-    accumulator.add(bytes);
-  }
-
-  close() {}
-}
-
-void testBase() {
-  var byteSink = new MyByteSink();
-  var bytes = [1];
-  byteSink.addSlice(bytes, 0, 1, false);
-  bytes[0] = 2;
-  byteSink.addSlice(bytes, 0, 1, true);
-  Expect.equals(1, byteSink.accumulator[0][0]);
-  Expect.equals(2, byteSink.accumulator[1][0]);
-}
-
-class MyChunkedSink implements ChunkedConversionSink<List<int>> {
-  var accumulator = [];
-  add(List<int> bytes) {
-    accumulator.add(bytes);
-  }
-
-  close() {}
-}
-
-void testAdapter() {
-  var chunkedSink = new MyChunkedSink();
-  var byteSink = new ByteConversionSink.from(chunkedSink);
-  var bytes = [1];
-  byteSink.addSlice(bytes, 0, 1, false);
-  bytes[0] = 2;
-  byteSink.addSlice(bytes, 0, 1, true);
-  Expect.equals(1, chunkedSink.accumulator[0][0]);
-  Expect.equals(2, chunkedSink.accumulator[1][0]);
-}
-
-void main() {
-  testBase();
-  testAdapter();
-}
diff --git a/tests/lib_2/convert/chunked_conversion_json_decode1_test.dart b/tests/lib_2/convert/chunked_conversion_json_decode1_test.dart
deleted file mode 100644
index ddfa29b9768..00000000000
--- a/tests/lib_2/convert/chunked_conversion_json_decode1_test.dart
+++ /dev/null
@@ -1,192 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:convert';
-
-final TESTS = [
-  [5, '5'],
-  [-42, '-42'],
-  [3.14, '3.14'],
-  [true, 'true'],
-  [false, 'false'],
-  [null, 'null'],
-  ['quote"or\'', '"quote\\"or\'"'],
-  ['', '""'],
-  [[], "[]"],
-  [
-    [3, -4.5, true, "hi", false],
-    '[3,-4.5,true,"hi",false]'
-  ],
-  [
-    [null],
-    "[null]"
-  ],
-  [
-    [
-      [null]
-    ],
-    "[[null]]"
-  ],
-  [
-    [
-      [3]
-    ],
-    "[[3]]"
-  ],
-  [{}, "{}"],
-  [
-    {"x": 3, "y": 4.5, "z": "hi", "u": true, "v": false},
-    '{"x":3,"y":4.5,"z":"hi","u":true,"v":false}'
-  ],
-  [
-    {"x": null},
-    '{"x":null}'
-  ],
-  [
-    {"x": {}},
-    '{"x":{}}'
-  ],
-  // Note that -0.0 won't be treated the same in JS. The Json spec seems to
-  // allow it, though.
-  [
-    {"hi there": 499, "'": -0.0},
-    '{"hi there":499,"\'":-0.0}'
-  ],
-  [r'\foo', r'"\\foo"'],
-];
-
-bool isJsonEqual(o1, o2) {
-  if (o1 == o2) return true;
-  if (o1 is List && o2 is List) {
-    if (o1.length != o2.length) return false;
-    for (int i = 0; i < o1.length; i++) {
-      if (!isJsonEqual(o1[i], o2[i])) return false;
-    }
-    return true;
-  }
-  if (o1 is Map && o2 is Map) {
-    if (o1.length != o2.length) return false;
-    for (var key in o1.keys) {
-      Expect.isTrue(key is String);
-      if (!o2.containsKey(key)) return false;
-      if (!isJsonEqual(o1[key], o2[key])) return false;
-    }
-    return true;
-  }
-  return false;
-}
-
-Object decode(String str) {
-  Object result;
-  var decoder = new JsonDecoder(null);
-  ChunkedConversionSink objectSink =
-      new ChunkedConversionSink.withCallback((x) => result = x.single);
-  var stringConversionSink = decoder.startChunkedConversion(objectSink);
-  stringConversionSink.add(str);
-  stringConversionSink.close();
-  return result;
-}
-
-Object decode2(String str) {
-  Object result;
-  var decoder = new JsonDecoder(null);
-  ChunkedConversionSink objectSink =
-      new ChunkedConversionSink.withCallback((x) => result = x.single);
-  var stringConversionSink = decoder.startChunkedConversion(objectSink);
-  ClosableStringSink stringSink = stringConversionSink.asStringSink();
-  stringSink.write(str);
-  stringSink.close();
-  return result;
-}
-
-Object decode3(String str) {
-  Object result;
-  var decoder = new JsonDecoder(null);
-  ChunkedConversionSink objectSink =
-      new ChunkedConversionSink.withCallback((x) => result = x.single);
-  var stringConversionSink = decoder.startChunkedConversion(objectSink);
-  ClosableStringSink stringSink = stringConversionSink.asStringSink();
-  str.codeUnits.forEach(stringSink.writeCharCode);
-  stringSink.close();
-  return result;
-}
-
-Object decode4(String str) {
-  Object result;
-  var decoder = new JsonDecoder(null);
-  ChunkedConversionSink objectSink =
-      new ChunkedConversionSink.withCallback((x) => result = x.single);
-  var stringConversionSink = decoder.startChunkedConversion(objectSink);
-  ClosableStringSink stringSink = stringConversionSink.asStringSink();
-  str.runes.forEach(stringSink.writeCharCode);
-  stringSink.close();
-  return result;
-}
-
-Object decode5(String str) {
-  Object result;
-  var decoder = new JsonDecoder(null);
-  ChunkedConversionSink objectSink =
-      new ChunkedConversionSink.withCallback((x) => result = x.single);
-  var stringConversionSink = decoder.startChunkedConversion(objectSink);
-  ByteConversionSink inputByteSink = stringConversionSink.asUtf8Sink(false);
-  Object tmpBytes = utf8.encode(str);
-  inputByteSink.add(tmpBytes);
-  inputByteSink.close();
-  return result;
-}
-
-Object decode6(String str) {
-  Object result;
-  var decoder = new JsonDecoder(null);
-  ChunkedConversionSink objectSink =
-      new ChunkedConversionSink.withCallback((x) => result = x.single);
-  var stringConversionSink = decoder.startChunkedConversion(objectSink);
-  ByteConversionSink inputByteSink = stringConversionSink.asUtf8Sink(false);
-  var tmpBytes = utf8.encode(str);
-  tmpBytes.forEach((b) => inputByteSink.addSlice([0, b, 1], 1, 2, false));
-  inputByteSink.close();
-  return result;
-}
-
-Object decode7(String str) {
-  Object result;
-  var decoder = new JsonDecoder(null);
-  ChunkedConversionSink objectSink =
-      new ChunkedConversionSink.withCallback((x) => result = x.single);
-  var stringConversionSink = decoder.startChunkedConversion(objectSink);
-  stringConversionSink.addSlice("1" + str + "2", 1, str.length + 1, false);
-  stringConversionSink.close();
-  return result;
-}
-
-main() {
-  var tests = TESTS.expand((test) {
-    var object = test[0];
-    var string = test[1];
-    var longString = "                                                        "
-        "                                                        "
-        "$string"
-        "                                                        "
-        "                                                        ";
-    return [
-      test,
-      [object, longString]
-    ];
-  });
-  for (var test in tests) {
-    var o = test[0];
-    var string = test[1];
-    Expect.isTrue(isJsonEqual(o, decode(string)));
-    Expect.isTrue(isJsonEqual(o, decode2(string)));
-    Expect.isTrue(isJsonEqual(o, decode3(string)));
-    Expect.isTrue(isJsonEqual(o, decode4(string)));
-    Expect.isTrue(isJsonEqual(o, decode5(string)));
-    Expect.isTrue(isJsonEqual(o, decode6(string)));
-    Expect.isTrue(isJsonEqual(o, decode7(string)));
-  }
-}
diff --git a/tests/lib_2/convert/chunked_conversion_json_encode1_test.dart b/tests/lib_2/convert/chunked_conversion_json_encode1_test.dart
deleted file mode 100644
index 6d77cd7d99a..00000000000
--- a/tests/lib_2/convert/chunked_conversion_json_encode1_test.dart
+++ /dev/null
@@ -1,106 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:convert';
-
-final TESTS = [
-  [5, '5'],
-  [-42, '-42'],
-  [3.14, '3.14'],
-  [true, 'true'],
-  [false, 'false'],
-  [null, 'null'],
-  ['quote"or\'', '"quote\\"or\'"'],
-  ['', '""'],
-  [[], "[]"],
-  [
-    [3, -4.5, true, "hi", false],
-    '[3,-4.5,true,"hi",false]'
-  ],
-  [
-    [null],
-    "[null]"
-  ],
-  [
-    [
-      [null]
-    ],
-    "[[null]]"
-  ],
-  [
-    [
-      [3]
-    ],
-    "[[3]]"
-  ],
-  [{}, "{}"],
-  [
-    {"x": 3, "y": 4.5, "z": "hi", "u": true, "v": false},
-    '{"x":3,"y":4.5,"z":"hi","u":true,"v":false}'
-  ],
-  [
-    {"x": null},
-    '{"x":null}'
-  ],
-  [
-    {"x": {}},
-    '{"x":{}}'
-  ],
-  // Note that -0.0 won't be treated the same in JS. The Json spec seems to
-  // allow it, though.
-  [
-    {"hi there": 499, "'": -0.0},
-    '{"hi there":499,"\'":-0.0}'
-  ],
-  [r'\foo', r'"\\foo"'],
-];
-
-class MyStringConversionSink extends StringConversionSink {
-  var buffer = new StringBuffer();
-  var callback;
-
-  MyStringConversionSink(this.callback);
-
-  addSlice(str, start, end, bool isLast) {
-    buffer.write(str.substring(start, end));
-    if (isLast) close();
-  }
-
-  close() {
-    callback(buffer.toString());
-  }
-}
-
-String encode(Object o) {
-  var result;
-  ChunkedConversionSink<String> stringSink =
-      new MyStringConversionSink((x) => result = x);
-  var objectSink = new JsonEncoder().startChunkedConversion(stringSink);
-  objectSink.add(o);
-  objectSink.close();
-  return result;
-}
-
-String encode2(Object o) {
-  var result;
-  var encoder = new JsonEncoder();
-  ChunkedConversionSink<String> stringSink =
-      new StringConversionSink.withCallback((x) => result = x);
-  var objectSink = encoder.startChunkedConversion(stringSink);
-  objectSink.add(o);
-  objectSink.close();
-  return result;
-}
-
-main() {
-  for (var test in TESTS) {
-    var o = test[0];
-    var expected = test[1];
-    Expect.equals(expected, encode(o));
-    Expect.equals(expected, encode2(o));
-  }
-}
diff --git a/tests/lib_2/convert/chunked_conversion_utf82_test.dart b/tests/lib_2/convert/chunked_conversion_utf82_test.dart
deleted file mode 100644
index 13f06438064..00000000000
--- a/tests/lib_2/convert/chunked_conversion_utf82_test.dart
+++ /dev/null
@@ -1,295 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library utf8_test;
-
-import "package:expect/expect.dart";
-import 'dart:convert';
-
-String decode(List<int> bytes, int chunkSize) {
-  StringBuffer buffer = new StringBuffer();
-  var stringSink = new StringConversionSink.fromStringSink(buffer);
-  var byteSink = new Utf8Decoder().startChunkedConversion(stringSink);
-  int i = 0;
-  while (i < bytes.length) {
-    var nextChunk = <int>[];
-    for (int j = 0; j < chunkSize; j++) {
-      if (i < bytes.length) {
-        nextChunk.add(bytes[i]);
-        i++;
-      }
-    }
-    byteSink.add(nextChunk);
-  }
-  byteSink.close();
-  return buffer.toString();
-}
-
-String decodeAllowMalformed(List<int> bytes, int chunkSize) {
-  StringBuffer buffer = new StringBuffer();
-  var stringSink = new StringConversionSink.fromStringSink(buffer);
-  var decoder = new Utf8Decoder(allowMalformed: true);
-  var byteSink = decoder.startChunkedConversion(stringSink);
-  int i = 0;
-  while (i < bytes.length) {
-    var nextChunk = <int>[];
-    for (int j = 0; j < chunkSize; j++) {
-      if (i < bytes.length) {
-        nextChunk.add(bytes[i]);
-        i++;
-      }
-    }
-    byteSink.add(nextChunk);
-  }
-  byteSink.close();
-  return buffer.toString();
-}
-
-final TESTS0 = [
-  // Unfinished UTF-8 sequences.
-  [0xc3],
-  [0xE2, 0x82],
-  [0xF0, 0xA4, 0xAD]
-];
-
-final TESTS1 = [
-  // Overlong encoding of euro-sign.
-  [0xF0, 0x82, 0x82, 0xAC],
-  // Other overlong/unfinished sequences.
-  [0xC0],
-  [0xC1],
-  [0xF5],
-  [0xF6],
-  [0xF7],
-  [0xF8],
-  [0xF9],
-  [0xFA],
-  [0xFB],
-  [0xFC],
-  [0xFD],
-  [0xFE],
-  [0xFF],
-  [0xC0, 0x80],
-  [0xC1, 0x80],
-  // Outside valid range.
-  [0xF4, 0xBF, 0xBF, 0xBF]
-];
-
-final TESTS2 = [
-  // Test that 0xC0|1, 0x80 does not eat the next character.
-  [
-    [0xC0, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xC1, 0x80, 0x61],
-    "XXa"
-  ],
-  // 0xF5 .. 0xFF never appear in valid UTF-8 sequences.
-  [
-    [0xF5, 0x80],
-    "XX"
-  ],
-  [
-    [0xF6, 0x80],
-    "XX"
-  ],
-  [
-    [0xF7, 0x80],
-    "XX"
-  ],
-  [
-    [0xF8, 0x80],
-    "XX"
-  ],
-  [
-    [0xF9, 0x80],
-    "XX"
-  ],
-  [
-    [0xFA, 0x80],
-    "XX"
-  ],
-  [
-    [0xFB, 0x80],
-    "XX"
-  ],
-  [
-    [0xFC, 0x80],
-    "XX"
-  ],
-  [
-    [0xFD, 0x80],
-    "XX"
-  ],
-  [
-    [0xFE, 0x80],
-    "XX"
-  ],
-  [
-    [0xFF, 0x80],
-    "XX"
-  ],
-  [
-    [0xF5, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xF6, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xF7, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xF8, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xF9, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xFA, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xFB, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xFC, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xFD, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xFE, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xFF, 0x80, 0x61],
-    "XXa"
-  ],
-  // Characters outside the valid range.
-  [
-    [0xF5, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xF6, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xF7, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xF8, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xF9, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xFA, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xFB, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xFC, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xFD, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xFE, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xFF, 0x80, 0x80, 0x61],
-    "XXXa"
-  ]
-];
-
-main() {
-  var allTests = [...TESTS0, ...TESTS1].expand((test) {
-    // Pairs of test and expected string output when malformed strings are
-    // allowed. Replacement character: U+FFFD, one per unfinished sequence or
-    // undecodable byte.
-    String replacement =
-        TESTS0.contains(test) ? "\u{FFFD}" : "\u{FFFD}" * test.length;
-    return [
-      [test, "${replacement}"],
-      [
-        [0x61, ...test],
-        "a${replacement}"
-      ],
-      [
-        [0x61, ...test, 0x61],
-        "a${replacement}a"
-      ],
-      [
-        [...test, 0x61],
-        "${replacement}a"
-      ],
-      [
-        [...test, ...test],
-        "${replacement}${replacement}"
-      ],
-      [
-        [...test, 0x61, ...test],
-        "${replacement}a${replacement}"
-      ],
-      [
-        [0xc3, 0xa5, ...test],
-        "å${replacement}"
-      ],
-      [
-        [0xc3, 0xa5, ...test, 0xc3, 0xa5],
-        "å${replacement}å"
-      ],
-      [
-        [...test, 0xc3, 0xa5],
-        "${replacement}å"
-      ],
-      [
-        [...test, 0xc3, 0xa5, ...test],
-        "${replacement}å${replacement}"
-      ]
-    ];
-  });
-
-  var allTests2 = TESTS2.map((test) {
-    // Pairs of test and expected string output when malformed strings are
-    // allowed. Replacement character: U+FFFD
-    String expected = (test[1] as String).replaceAll("X", "\u{FFFD}");
-    return [test[0], expected];
-  });
-
-  for (var test in []..addAll(allTests)..addAll(allTests2)) {
-    List<int> bytes = test[0];
-    Expect.throwsFormatException(() => decode(bytes, 1));
-    Expect.throwsFormatException(() => decode(bytes, 2));
-    Expect.throwsFormatException(() => decode(bytes, 3));
-    Expect.throwsFormatException(() => decode(bytes, 4));
-
-    String expected = test[1];
-    Expect.equals(expected, decodeAllowMalformed(bytes, 1));
-    Expect.equals(expected, decodeAllowMalformed(bytes, 2));
-    Expect.equals(expected, decodeAllowMalformed(bytes, 3));
-    Expect.equals(expected, decodeAllowMalformed(bytes, 4));
-  }
-}
diff --git a/tests/lib_2/convert/chunked_conversion_utf83_test.dart b/tests/lib_2/convert/chunked_conversion_utf83_test.dart
deleted file mode 100644
index f8a1ad6607f..00000000000
--- a/tests/lib_2/convert/chunked_conversion_utf83_test.dart
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-import 'dart:convert';
-
-String decode(List<int> bytes, int chunkSize) {
-  StringBuffer buffer = new StringBuffer();
-  var stringSink = new StringConversionSink.fromStringSink(buffer);
-  var byteSink = new Utf8Decoder().startChunkedConversion(stringSink);
-  int i = 0;
-  while (i < bytes.length) {
-    var nextChunk = <int>[];
-    for (int j = 0; j < chunkSize; j++) {
-      if (i < bytes.length) {
-        nextChunk.add(bytes[i]);
-        i++;
-      }
-    }
-    byteSink.add(nextChunk);
-  }
-  byteSink.close();
-  return buffer.toString();
-}
-
-String decodeAllowMalformed(List<int> bytes, int chunkSize) {
-  StringBuffer buffer = new StringBuffer();
-  var stringSink = new StringConversionSink.fromStringSink(buffer);
-  var decoder = new Utf8Decoder(allowMalformed: true);
-  var byteSink = decoder.startChunkedConversion(stringSink);
-  int i = 0;
-  while (i < bytes.length) {
-    var nextChunk = <int>[];
-    for (int j = 0; j < chunkSize; j++) {
-      if (i < bytes.length) {
-        nextChunk.add(bytes[i]);
-        i++;
-      }
-    }
-    byteSink.add(nextChunk);
-  }
-  byteSink.close();
-  return buffer.toString();
-}
-
-main() {
-  // Test that chunked UTF8-decoder removes leading BOM.
-  Expect.equals("a", decode([0xEF, 0xBB, 0xBF, 0x61], 1));
-  Expect.equals("a", decode([0xEF, 0xBB, 0xBF, 0x61], 2));
-  Expect.equals("a", decode([0xEF, 0xBB, 0xBF, 0x61], 3));
-  Expect.equals("a", decode([0xEF, 0xBB, 0xBF, 0x61], 4));
-  Expect.equals("a", decodeAllowMalformed([0xEF, 0xBB, 0xBF, 0x61], 1));
-  Expect.equals("a", decodeAllowMalformed([0xEF, 0xBB, 0xBF, 0x61], 2));
-  Expect.equals("a", decodeAllowMalformed([0xEF, 0xBB, 0xBF, 0x61], 3));
-  Expect.equals("a", decodeAllowMalformed([0xEF, 0xBB, 0xBF, 0x61], 4));
-  Expect.equals("", decode([0xEF, 0xBB, 0xBF], 1));
-  Expect.equals("", decode([0xEF, 0xBB, 0xBF], 2));
-  Expect.equals("", decode([0xEF, 0xBB, 0xBF], 3));
-  Expect.equals("", decode([0xEF, 0xBB, 0xBF], 4));
-  Expect.equals("", decodeAllowMalformed([0xEF, 0xBB, 0xBF], 1));
-  Expect.equals("", decodeAllowMalformed([0xEF, 0xBB, 0xBF], 2));
-  Expect.equals("", decodeAllowMalformed([0xEF, 0xBB, 0xBF], 3));
-  Expect.equals("", decodeAllowMalformed([0xEF, 0xBB, 0xBF], 4));
-  Expect.equals("a\u{FEFF}", decode([0x61, 0xEF, 0xBB, 0xBF], 1));
-  Expect.equals("a\u{FEFF}", decode([0x61, 0xEF, 0xBB, 0xBF], 2));
-  Expect.equals("a\u{FEFF}", decode([0x61, 0xEF, 0xBB, 0xBF], 3));
-  Expect.equals("a\u{FEFF}", decode([0x61, 0xEF, 0xBB, 0xBF], 4));
-  Expect.equals("a\u{FEFF}", decodeAllowMalformed([0x61, 0xEF, 0xBB, 0xBF], 1));
-  Expect.equals("a\u{FEFF}", decodeAllowMalformed([0x61, 0xEF, 0xBB, 0xBF], 2));
-  Expect.equals("a\u{FEFF}", decodeAllowMalformed([0x61, 0xEF, 0xBB, 0xBF], 3));
-  Expect.equals("a\u{FEFF}", decodeAllowMalformed([0x61, 0xEF, 0xBB, 0xBF], 4));
-}
diff --git a/tests/lib_2/convert/chunked_conversion_utf84_test.dart b/tests/lib_2/convert/chunked_conversion_utf84_test.dart
deleted file mode 100644
index 442387a1051..00000000000
--- a/tests/lib_2/convert/chunked_conversion_utf84_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:convert';
-import 'unicode_tests.dart';
-
-String decode(List<int> bytes, int chunkSize) {
-  // Use a non-chunked interface.
-  String result;
-  var chunkedSink =
-      new StringConversionSink.withCallback((decoded) => result = decoded);
-  var byteSink = new Utf8Decoder().startChunkedConversion(chunkedSink);
-  int i = 0;
-  while (i < bytes.length) {
-    var nextChunk = <int>[];
-    for (int j = 0; j < chunkSize; j++) {
-      if (i < bytes.length) {
-        nextChunk.add(bytes[i]);
-        i++;
-      }
-    }
-    byteSink.add(nextChunk);
-  }
-  byteSink.close();
-  return result;
-}
-
-main() {
-  for (var test in UNICODE_TESTS) {
-    var bytes = test[0];
-    var expected = test[1];
-    Expect.stringEquals(expected, decode(bytes, 1));
-    Expect.stringEquals(expected, decode(bytes, 2));
-    Expect.stringEquals(expected, decode(bytes, 3));
-    Expect.stringEquals(expected, decode(bytes, 4));
-  }
-}
diff --git a/tests/lib_2/convert/chunked_conversion_utf85_test.dart b/tests/lib_2/convert/chunked_conversion_utf85_test.dart
deleted file mode 100644
index 0b8b0559a23..00000000000
--- a/tests/lib_2/convert/chunked_conversion_utf85_test.dart
+++ /dev/null
@@ -1,100 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:convert';
-import 'unicode_tests.dart';
-
-List<int> encode(String str) {
-  List<int> bytes;
-  var byteSink =
-      new ByteConversionSink.withCallback((result) => bytes = result);
-  var stringConversionSink = new Utf8Encoder().startChunkedConversion(byteSink);
-  stringConversionSink.add(str);
-  stringConversionSink.close();
-  return bytes;
-}
-
-List<int> encode2(String str) {
-  List<int> bytes;
-  var byteSink =
-      new ByteConversionSink.withCallback((result) => bytes = result);
-  var stringConversionSink = new Utf8Encoder().startChunkedConversion(byteSink);
-  ClosableStringSink stringSink = stringConversionSink.asStringSink();
-  stringSink.write(str);
-  stringSink.close();
-  return bytes;
-}
-
-List<int> encode3(String str) {
-  List<int> bytes;
-  var byteSink =
-      new ByteConversionSink.withCallback((result) => bytes = result);
-  var stringConversionSink = new Utf8Encoder().startChunkedConversion(byteSink);
-  ClosableStringSink stringSink = stringConversionSink.asStringSink();
-  str.codeUnits.forEach(stringSink.writeCharCode);
-  stringSink.close();
-  return bytes;
-}
-
-List<int> encode4(String str) {
-  List<int> bytes;
-  var byteSink =
-      new ByteConversionSink.withCallback((result) => bytes = result);
-  var stringConversionSink = new Utf8Encoder().startChunkedConversion(byteSink);
-  ClosableStringSink stringSink = stringConversionSink.asStringSink();
-  str.runes.forEach(stringSink.writeCharCode);
-  stringSink.close();
-  return bytes;
-}
-
-List<int> encode5(String str) {
-  List<int> bytes;
-  var byteSink =
-      new ByteConversionSink.withCallback((result) => bytes = result);
-  var stringConversionSink = new Utf8Encoder().startChunkedConversion(byteSink);
-  ByteConversionSink inputByteSink = stringConversionSink.asUtf8Sink(false);
-  List<int> tmpBytes = utf8.encode(str);
-  inputByteSink.add(tmpBytes);
-  inputByteSink.close();
-  return bytes;
-}
-
-List<int> encode6(String str) {
-  List<int> bytes;
-  var byteSink =
-      new ByteConversionSink.withCallback((result) => bytes = result);
-  var stringConversionSink = new Utf8Encoder().startChunkedConversion(byteSink);
-  ByteConversionSink inputByteSink = stringConversionSink.asUtf8Sink(false);
-  List<int> tmpBytes = utf8.encode(str);
-  tmpBytes.forEach((b) => inputByteSink.addSlice([0, b, 1], 1, 2, false));
-  inputByteSink.close();
-  return bytes;
-}
-
-List<int> encode7(String str) {
-  List<int> bytes;
-  var byteSink =
-      new ByteConversionSink.withCallback((result) => bytes = result);
-  var stringConversionSink = new Utf8Encoder().startChunkedConversion(byteSink);
-  stringConversionSink.addSlice("1" + str + "2", 1, str.length + 1, false);
-  stringConversionSink.close();
-  return bytes;
-}
-
-main() {
-  for (var test in UNICODE_TESTS) {
-    List<int> bytes = test[0];
-    String string = test[1];
-    Expect.listEquals(bytes, encode(string));
-    Expect.listEquals(bytes, encode2(string));
-    Expect.listEquals(bytes, encode3(string));
-    Expect.listEquals(bytes, encode4(string));
-    Expect.listEquals(bytes, encode5(string));
-    Expect.listEquals(bytes, encode6(string));
-    Expect.listEquals(bytes, encode7(string));
-  }
-}
diff --git a/tests/lib_2/convert/chunked_conversion_utf86_test.dart b/tests/lib_2/convert/chunked_conversion_utf86_test.dart
deleted file mode 100644
index 3873c6b85ec..00000000000
--- a/tests/lib_2/convert/chunked_conversion_utf86_test.dart
+++ /dev/null
@@ -1,271 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:convert';
-
-String decode(List<int> bytes) {
-  StringBuffer buffer = new StringBuffer();
-  var stringSink = new StringConversionSink.fromStringSink(buffer);
-  var byteSink = new Utf8Decoder().startChunkedConversion(stringSink);
-  bytes.forEach((byte) {
-    byteSink.add([byte]);
-  });
-  byteSink.close();
-  return buffer.toString();
-}
-
-String decodeAllowMalformed(List<int> bytes) {
-  StringBuffer buffer = new StringBuffer();
-  var stringSink = new StringConversionSink.fromStringSink(buffer);
-  var decoder = new Utf8Decoder(allowMalformed: true);
-  var byteSink = decoder.startChunkedConversion(stringSink);
-  bytes.forEach((byte) {
-    byteSink.add([byte]);
-  });
-  byteSink.close();
-  return buffer.toString();
-}
-
-final TESTS0 = [
-  // Unfinished UTF-8 sequences.
-  [0xc3],
-  [0xE2, 0x82],
-  [0xF0, 0xA4, 0xAD]
-];
-
-final TESTS1 = [
-  // Overlong encoding of euro-sign.
-  [0xF0, 0x82, 0x82, 0xAC],
-  // Other overlong/unfinished sequences.
-  [0xC0],
-  [0xC1],
-  [0xF5],
-  [0xF6],
-  [0xF7],
-  [0xF8],
-  [0xF9],
-  [0xFA],
-  [0xFB],
-  [0xFC],
-  [0xFD],
-  [0xFE],
-  [0xFF],
-  [0xC0, 0x80],
-  [0xC1, 0x80],
-  // Outside valid range.
-  [0xF4, 0xBF, 0xBF, 0xBF]
-];
-
-final TESTS2 = [
-  // Test that 0xC0|1, 0x80 does not eat the next character.
-  [
-    [0xC0, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xC1, 0x80, 0x61],
-    "XXa"
-  ],
-  // 0xF5 .. 0xFF never appear in valid UTF-8 sequences.
-  [
-    [0xF5, 0x80],
-    "XX"
-  ],
-  [
-    [0xF6, 0x80],
-    "XX"
-  ],
-  [
-    [0xF7, 0x80],
-    "XX"
-  ],
-  [
-    [0xF8, 0x80],
-    "XX"
-  ],
-  [
-    [0xF9, 0x80],
-    "XX"
-  ],
-  [
-    [0xFA, 0x80],
-    "XX"
-  ],
-  [
-    [0xFB, 0x80],
-    "XX"
-  ],
-  [
-    [0xFC, 0x80],
-    "XX"
-  ],
-  [
-    [0xFD, 0x80],
-    "XX"
-  ],
-  [
-    [0xFE, 0x80],
-    "XX"
-  ],
-  [
-    [0xFF, 0x80],
-    "XX"
-  ],
-  [
-    [0xF5, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xF6, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xF7, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xF8, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xF9, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xFA, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xFB, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xFC, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xFD, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xFE, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xFF, 0x80, 0x61],
-    "XXa"
-  ],
-  // Characters outside the valid range.
-  [
-    [0xF5, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xF6, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xF7, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xF8, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xF9, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xFA, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xFB, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xFC, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xFD, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xFE, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xFF, 0x80, 0x80, 0x61],
-    "XXXa"
-  ]
-];
-
-main() {
-  var allTests = [...TESTS0, ...TESTS1].expand((test) {
-    // Pairs of test and expected string output when malformed strings are
-    // allowed. Replacement character: U+FFFD, one per unfinished sequence or
-    // undecodable byte.
-    String replacement =
-        TESTS0.contains(test) ? "\u{FFFD}" : "\u{FFFD}" * test.length;
-    return [
-      [test, "${replacement}"],
-      [
-        [0x61, ...test],
-        "a${replacement}"
-      ],
-      [
-        [0x61, ...test, 0x61],
-        "a${replacement}a"
-      ],
-      [
-        [...test, 0x61],
-        "${replacement}a"
-      ],
-      [
-        [...test, ...test],
-        "${replacement}${replacement}"
-      ],
-      [
-        [...test, 0x61, ...test],
-        "${replacement}a${replacement}"
-      ],
-      [
-        [0xc3, 0xa5, ...test],
-        "å${replacement}"
-      ],
-      [
-        [0xc3, 0xa5, ...test, 0xc3, 0xa5],
-        "å${replacement}å"
-      ],
-      [
-        [...test, 0xc3, 0xa5],
-        "${replacement}å"
-      ],
-      [
-        [...test, 0xc3, 0xa5, ...test],
-        "${replacement}å${replacement}"
-      ]
-    ];
-  });
-
-  var allTests2 = TESTS2.map((test) {
-    // Pairs of test and expected string output when malformed strings are
-    // allowed. Replacement character: U+FFFD
-    String expected = (test[1] as String).replaceAll("X", "\u{FFFD}");
-    return [test[0], expected];
-  });
-
-  for (var test in []..addAll(allTests)..addAll(allTests2)) {
-    List<int> bytes = test[0];
-    Expect.throwsFormatException(() => decode(bytes));
-
-    String expected = test[1];
-    Expect.equals(expected, decodeAllowMalformed(bytes));
-  }
-}
diff --git a/tests/lib_2/convert/chunked_conversion_utf87_test.dart b/tests/lib_2/convert/chunked_conversion_utf87_test.dart
deleted file mode 100644
index fd94ff9553a..00000000000
--- a/tests/lib_2/convert/chunked_conversion_utf87_test.dart
+++ /dev/null
@@ -1,294 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:convert';
-
-String decode(List<int> inputBytes) {
-  List<int> bytes;
-  var byteSink =
-      new ByteConversionSink.withCallback((result) => bytes = result);
-  var stringConversionSink = new Utf8Encoder().startChunkedConversion(byteSink);
-  ByteConversionSink inputByteSink = stringConversionSink.asUtf8Sink(false);
-  inputByteSink.add(inputBytes);
-  inputByteSink.close();
-  return utf8.decode(bytes);
-}
-
-String decode2(List<int> inputBytes) {
-  List<int> bytes;
-  var byteSink =
-      new ByteConversionSink.withCallback((result) => bytes = result);
-  var stringConversionSink = new Utf8Encoder().startChunkedConversion(byteSink);
-  ByteConversionSink inputByteSink = stringConversionSink.asUtf8Sink(false);
-  inputBytes.forEach((b) => inputByteSink.addSlice([0, b, 1], 1, 2, false));
-  inputByteSink.close();
-  return utf8.decode(bytes);
-}
-
-String decodeAllowMalformed(List<int> inputBytes) {
-  List<int> bytes;
-  var byteSink =
-      new ByteConversionSink.withCallback((result) => bytes = result);
-  var stringConversionSink = new Utf8Encoder().startChunkedConversion(byteSink);
-  ByteConversionSink inputByteSink = stringConversionSink.asUtf8Sink(true);
-  inputByteSink.add(inputBytes);
-  inputByteSink.close();
-  return utf8.decode(bytes);
-}
-
-String decodeAllowMalformed2(List<int> inputBytes) {
-  List<int> bytes;
-  var byteSink =
-      new ByteConversionSink.withCallback((result) => bytes = result);
-  var stringConversionSink = new Utf8Encoder().startChunkedConversion(byteSink);
-  ByteConversionSink inputByteSink = stringConversionSink.asUtf8Sink(true);
-  inputBytes.forEach((b) => inputByteSink.addSlice([0, b, 1], 1, 2, false));
-  inputByteSink.close();
-  return utf8.decode(bytes);
-}
-
-final TESTS0 = [
-  // Unfinished UTF-8 sequences.
-  [0xc3],
-  [0xE2, 0x82],
-  [0xF0, 0xA4, 0xAD]
-];
-
-final TESTS1 = [
-  // Overlong encoding of euro-sign.
-  [0xF0, 0x82, 0x82, 0xAC],
-  // Other overlong/unfinished sequences.
-  [0xC0],
-  [0xC1],
-  [0xF5],
-  [0xF6],
-  [0xF7],
-  [0xF8],
-  [0xF9],
-  [0xFA],
-  [0xFB],
-  [0xFC],
-  [0xFD],
-  [0xFE],
-  [0xFF],
-  [0xC0, 0x80],
-  [0xC1, 0x80],
-  // Outside valid range.
-  [0xF4, 0xBF, 0xBF, 0xBF]
-];
-
-final TESTS2 = [
-  // Test that 0xC0|1, 0x80 does not eat the next character.
-  [
-    [0xC0, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xC1, 0x80, 0x61],
-    "XXa"
-  ],
-  // 0xF5 .. 0xFF never appear in valid UTF-8 sequences.
-  [
-    [0xF5, 0x80],
-    "XX"
-  ],
-  [
-    [0xF6, 0x80],
-    "XX"
-  ],
-  [
-    [0xF7, 0x80],
-    "XX"
-  ],
-  [
-    [0xF8, 0x80],
-    "XX"
-  ],
-  [
-    [0xF9, 0x80],
-    "XX"
-  ],
-  [
-    [0xFA, 0x80],
-    "XX"
-  ],
-  [
-    [0xFB, 0x80],
-    "XX"
-  ],
-  [
-    [0xFC, 0x80],
-    "XX"
-  ],
-  [
-    [0xFD, 0x80],
-    "XX"
-  ],
-  [
-    [0xFE, 0x80],
-    "XX"
-  ],
-  [
-    [0xFF, 0x80],
-    "XX"
-  ],
-  [
-    [0xF5, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xF6, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xF7, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xF8, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xF9, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xFA, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xFB, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xFC, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xFD, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xFE, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xFF, 0x80, 0x61],
-    "XXa"
-  ],
-  // Characters outside the valid range.
-  [
-    [0xF5, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xF6, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xF7, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xF8, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xF9, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xFA, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xFB, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xFC, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xFD, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xFE, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xFF, 0x80, 0x80, 0x61],
-    "XXXa"
-  ]
-];
-
-main() {
-  var allTests = [...TESTS0, ...TESTS1].expand((test) {
-    // Pairs of test and expected string output when malformed strings are
-    // allowed. Replacement character: U+FFFD, one per unfinished sequence or
-    // undecodable byte.
-    String replacement =
-        TESTS0.contains(test) ? "\u{FFFD}" : "\u{FFFD}" * test.length;
-    return [
-      [test, "${replacement}"],
-      [
-        [0x61, ...test],
-        "a${replacement}"
-      ],
-      [
-        [0x61, ...test, 0x61],
-        "a${replacement}a"
-      ],
-      [
-        [...test, 0x61],
-        "${replacement}a"
-      ],
-      [
-        [...test, ...test],
-        "${replacement}${replacement}"
-      ],
-      [
-        [...test, 0x61, ...test],
-        "${replacement}a${replacement}"
-      ],
-      [
-        [0xc3, 0xa5, ...test],
-        "å${replacement}"
-      ],
-      [
-        [0xc3, 0xa5, ...test, 0xc3, 0xa5],
-        "å${replacement}å"
-      ],
-      [
-        [...test, 0xc3, 0xa5],
-        "${replacement}å"
-      ],
-      [
-        [...test, 0xc3, 0xa5, ...test],
-        "${replacement}å${replacement}"
-      ]
-    ];
-  });
-
-  var allTests2 = TESTS2.map((test) {
-    // Pairs of test and expected string output when malformed strings are
-    // allowed. Replacement character: U+FFFD
-    String expected = (test[1] as String).replaceAll("X", "\u{FFFD}");
-    return [test[0], expected];
-  });
-
-  for (var test in []..addAll(allTests)..addAll(allTests2)) {
-    List<int> bytes = test[0];
-    Expect.throwsFormatException(() => decode(bytes));
-    Expect.throwsFormatException(() => decode2(bytes));
-
-    String expected = test[1];
-    Expect.equals(expected, decodeAllowMalformed(bytes));
-    Expect.equals(expected, decodeAllowMalformed2(bytes));
-  }
-}
diff --git a/tests/lib_2/convert/chunked_conversion_utf88_test.dart b/tests/lib_2/convert/chunked_conversion_utf88_test.dart
deleted file mode 100644
index 5e28b35b215..00000000000
--- a/tests/lib_2/convert/chunked_conversion_utf88_test.dart
+++ /dev/null
@@ -1,249 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library utf8_test;
-
-import "package:expect/expect.dart";
-import 'dart:convert';
-
-List<int> encode(String str) {
-  List<int> bytes;
-  var byteSink =
-      new ByteConversionSink.withCallback((result) => bytes = result);
-  var stringConversionSink = new Utf8Encoder().startChunkedConversion(byteSink);
-  stringConversionSink.add(str);
-  stringConversionSink.close();
-  return bytes;
-}
-
-List<int> encode2(String str) {
-  List<int> bytes;
-  var byteSink =
-      new ByteConversionSink.withCallback((result) => bytes = result);
-  var stringConversionSink = new Utf8Encoder().startChunkedConversion(byteSink);
-  ClosableStringSink stringSink = stringConversionSink.asStringSink();
-  stringSink.write(str);
-  stringSink.close();
-  return bytes;
-}
-
-List<int> encode3(String str) {
-  List<int> bytes;
-  var byteSink =
-      new ByteConversionSink.withCallback((result) => bytes = result);
-  var stringConversionSink = new Utf8Encoder().startChunkedConversion(byteSink);
-  ClosableStringSink stringSink = stringConversionSink.asStringSink();
-  str.codeUnits.forEach(stringSink.writeCharCode);
-  stringSink.close();
-  return bytes;
-}
-
-List<int> encode4(String str) {
-  List<int> bytes;
-  var byteSink =
-      new ByteConversionSink.withCallback((result) => bytes = result);
-  var stringConversionSink = new Utf8Encoder().startChunkedConversion(byteSink);
-  ClosableStringSink stringSink = stringConversionSink.asStringSink();
-  str.runes.forEach(stringSink.writeCharCode);
-  stringSink.close();
-  return bytes;
-}
-
-List<int> encode5(String str) {
-  List<int> bytes;
-  var byteSink =
-      new ByteConversionSink.withCallback((result) => bytes = result);
-  var stringConversionSink = new Utf8Encoder().startChunkedConversion(byteSink);
-  ByteConversionSink inputByteSink = stringConversionSink.asUtf8Sink(false);
-  List<int> tmpBytes = utf8.encode(str);
-  inputByteSink.add(tmpBytes);
-  inputByteSink.close();
-  return bytes;
-}
-
-List<int> encode6(String str) {
-  List<int> bytes;
-  var byteSink =
-      new ByteConversionSink.withCallback((result) => bytes = result);
-  var stringConversionSink = new Utf8Encoder().startChunkedConversion(byteSink);
-  ByteConversionSink inputByteSink = stringConversionSink.asUtf8Sink(false);
-  List<int> tmpBytes = utf8.encode(str);
-  tmpBytes.forEach((b) => inputByteSink.addSlice([0, b, 1], 1, 2, false));
-  inputByteSink.close();
-  return bytes;
-}
-
-List<int> encode7(String str) {
-  List<int> bytes;
-  var byteSink =
-      new ByteConversionSink.withCallback((result) => bytes = result);
-  var stringConversionSink = new Utf8Encoder().startChunkedConversion(byteSink);
-  stringConversionSink.addSlice("1" + str + "2", 1, str.length + 1, false);
-  stringConversionSink.close();
-  return bytes;
-}
-
-int _nextPowerOf2(v) {
-  assert(v > 0);
-  v--;
-  v |= v >> 1;
-  v |= v >> 2;
-  v |= v >> 4;
-  v |= v >> 8;
-  v |= v >> 16;
-  v++;
-  return v;
-}
-
-runTest(test) {
-  List<int> bytes = test[0];
-  String string = test[1];
-  Expect.listEquals(bytes, encode(string));
-  Expect.listEquals(bytes, encode2(string));
-  Expect.listEquals(bytes, encode3(string));
-  Expect.listEquals(bytes, encode4(string));
-  Expect.listEquals(bytes, encode5(string));
-  Expect.listEquals(bytes, encode6(string));
-  Expect.listEquals(bytes, encode7(string));
-}
-
-main() {
-  const LEADING_SURROGATE = 0xd801;
-  const TRAILING_SURROGATE = 0xdc12;
-  const UTF8_ENCODING = const [0xf0, 0x90, 0x90, 0x92];
-  const UTF8_REPLACEMENT = const [0xef, 0xbf, 0xbd];
-  const CHAR_A = 0x61;
-
-  // Test surrogates at all kinds of locations.
-  var codeUnits = <int>[];
-  for (int i = 0; i < 2049; i++) {
-    // Invariant: codeUnits[0..i - 1] is filled with CHAR_A (character 'a').
-    codeUnits.length = i + 1;
-    codeUnits[i] = CHAR_A;
-
-    // Only test for problem zones, close to powers of two.
-    if (i > 20 && _nextPowerOf2(i - 2) - i > 10) continue;
-
-    codeUnits[i] = LEADING_SURROGATE;
-    var str = new String.fromCharCodes(codeUnits);
-    var bytes = new List.filled(i + 3, CHAR_A);
-    bytes[i] = UTF8_REPLACEMENT[0];
-    bytes[i + 1] = UTF8_REPLACEMENT[1];
-    bytes[i + 2] = UTF8_REPLACEMENT[2];
-    runTest([bytes, str]);
-
-    codeUnits[i] = TRAILING_SURROGATE;
-    str = new String.fromCharCodes(codeUnits);
-    bytes = new List.filled(i + 3, CHAR_A);
-    bytes[i] = UTF8_REPLACEMENT[0];
-    bytes[i + 1] = UTF8_REPLACEMENT[1];
-    bytes[i + 2] = UTF8_REPLACEMENT[2];
-    runTest([bytes, str]);
-
-    codeUnits.length = i + 2;
-    codeUnits[i] = LEADING_SURROGATE;
-    codeUnits[i + 1] = TRAILING_SURROGATE;
-    str = new String.fromCharCodes(codeUnits);
-    bytes = new List.filled(i + 4, CHAR_A);
-    bytes[i] = UTF8_ENCODING[0];
-    bytes[i + 1] = UTF8_ENCODING[1];
-    bytes[i + 2] = UTF8_ENCODING[2];
-    bytes[i + 3] = UTF8_ENCODING[3];
-    runTest([bytes, str]);
-
-    codeUnits[i] = TRAILING_SURROGATE;
-    codeUnits[i + 1] = TRAILING_SURROGATE;
-    str = new String.fromCharCodes(codeUnits);
-    bytes = new List.filled(i + 6, CHAR_A);
-    bytes[i] = UTF8_REPLACEMENT[0];
-    bytes[i + 1] = UTF8_REPLACEMENT[1];
-    bytes[i + 2] = UTF8_REPLACEMENT[2];
-    bytes[i + 3] = UTF8_REPLACEMENT[0];
-    bytes[i + 4] = UTF8_REPLACEMENT[1];
-    bytes[i + 5] = UTF8_REPLACEMENT[2];
-    runTest([bytes, str]);
-
-    codeUnits[i] = LEADING_SURROGATE;
-    codeUnits[i + 1] = LEADING_SURROGATE;
-    str = new String.fromCharCodes(codeUnits);
-    bytes = new List.filled(i + 6, CHAR_A);
-    bytes[i] = UTF8_REPLACEMENT[0];
-    bytes[i + 1] = UTF8_REPLACEMENT[1];
-    bytes[i + 2] = UTF8_REPLACEMENT[2];
-    bytes[i + 3] = UTF8_REPLACEMENT[0];
-    bytes[i + 4] = UTF8_REPLACEMENT[1];
-    bytes[i + 5] = UTF8_REPLACEMENT[2];
-    runTest([bytes, str]);
-
-    codeUnits[i] = TRAILING_SURROGATE;
-    codeUnits[i + 1] = LEADING_SURROGATE;
-    str = new String.fromCharCodes(codeUnits);
-    bytes = new List.filled(i + 6, CHAR_A);
-    bytes[i] = UTF8_REPLACEMENT[0];
-    bytes[i + 1] = UTF8_REPLACEMENT[1];
-    bytes[i + 2] = UTF8_REPLACEMENT[2];
-    bytes[i + 3] = UTF8_REPLACEMENT[0];
-    bytes[i + 4] = UTF8_REPLACEMENT[1];
-    bytes[i + 5] = UTF8_REPLACEMENT[2];
-    runTest([bytes, str]);
-
-    codeUnits.length = i + 3;
-    codeUnits[i] = LEADING_SURROGATE;
-    codeUnits[i + 1] = TRAILING_SURROGATE;
-    codeUnits[i + 2] = CHAR_A; // Add trailing 'a'.
-    str = new String.fromCharCodes(codeUnits);
-    bytes = new List.filled(i + 5, CHAR_A);
-    bytes[i] = UTF8_ENCODING[0];
-    bytes[i + 1] = UTF8_ENCODING[1];
-    bytes[i + 2] = UTF8_ENCODING[2];
-    bytes[i + 3] = UTF8_ENCODING[3];
-    // No need to assign the 'a' character. The whole list is already filled
-    // with it.
-    runTest([bytes, str]);
-
-    codeUnits[i] = TRAILING_SURROGATE;
-    codeUnits[i + 1] = TRAILING_SURROGATE;
-    codeUnits[i + 2] = CHAR_A; // Add trailing 'a'.
-    str = new String.fromCharCodes(codeUnits);
-    bytes = new List.filled(i + 7, CHAR_A);
-    bytes[i] = UTF8_REPLACEMENT[0];
-    bytes[i + 1] = UTF8_REPLACEMENT[1];
-    bytes[i + 2] = UTF8_REPLACEMENT[2];
-    bytes[i + 3] = UTF8_REPLACEMENT[0];
-    bytes[i + 4] = UTF8_REPLACEMENT[1];
-    bytes[i + 5] = UTF8_REPLACEMENT[2];
-    runTest([bytes, str]);
-
-    codeUnits[i] = LEADING_SURROGATE;
-    codeUnits[i + 1] = LEADING_SURROGATE;
-    codeUnits[i + 2] = CHAR_A; // Add trailing 'a'.
-    str = new String.fromCharCodes(codeUnits);
-    bytes = new List.filled(i + 7, CHAR_A);
-    bytes[i] = UTF8_REPLACEMENT[0];
-    bytes[i + 1] = UTF8_REPLACEMENT[1];
-    bytes[i + 2] = UTF8_REPLACEMENT[2];
-    bytes[i + 3] = UTF8_REPLACEMENT[0];
-    bytes[i + 4] = UTF8_REPLACEMENT[1];
-    bytes[i + 5] = UTF8_REPLACEMENT[2];
-    runTest([bytes, str]);
-
-    codeUnits[i] = TRAILING_SURROGATE;
-    codeUnits[i + 1] = LEADING_SURROGATE;
-    codeUnits[i + 2] = CHAR_A; // Add trailing 'a'.
-    str = new String.fromCharCodes(codeUnits);
-    bytes = new List.filled(i + 7, CHAR_A);
-    bytes[i] = UTF8_REPLACEMENT[0];
-    bytes[i + 1] = UTF8_REPLACEMENT[1];
-    bytes[i + 2] = UTF8_REPLACEMENT[2];
-    bytes[i + 3] = UTF8_REPLACEMENT[0];
-    bytes[i + 4] = UTF8_REPLACEMENT[1];
-    bytes[i + 5] = UTF8_REPLACEMENT[2];
-    runTest([bytes, str]);
-
-    // Make sure the invariant is correct.
-    codeUnits[i] = CHAR_A;
-  }
-}
diff --git a/tests/lib_2/convert/chunked_conversion_utf89_test.dart b/tests/lib_2/convert/chunked_conversion_utf89_test.dart
deleted file mode 100644
index fad9fcd753d..00000000000
--- a/tests/lib_2/convert/chunked_conversion_utf89_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:convert';
-
-class MySink implements ChunkedConversionSink<String> {
-  final Function _add;
-  final Function _close;
-
-  MySink(this._add, this._close);
-
-  void add(x) {
-    _add(x);
-  }
-
-  void close() {
-    _close();
-  }
-}
-
-main() {
-  // Make sure the UTF-8 decoder works eagerly.
-  String lastString;
-  bool isClosed = false;
-  var sink = new MySink((x) => lastString = x, () => isClosed = true);
-  var byteSink = new Utf8Decoder().startChunkedConversion(sink);
-  byteSink.add("abc".codeUnits);
-  Expect.equals("abc", lastString);
-  byteSink.add([0x61, 0xc3]); // 'a' followed by first part of Î.
-  Expect.equals("a", lastString);
-  byteSink.add([0x8e]); // second part of Î.
-  Expect.equals("Î", lastString);
-  Expect.isFalse(isClosed);
-  byteSink.close();
-  Expect.isTrue(isClosed);
-}
diff --git a/tests/lib_2/convert/chunked_conversion_utf8_test.dart b/tests/lib_2/convert/chunked_conversion_utf8_test.dart
deleted file mode 100644
index d58ff35cd48..00000000000
--- a/tests/lib_2/convert/chunked_conversion_utf8_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:convert';
-import 'unicode_tests.dart';
-
-String decode(List<int> bytes, int chunkSize) {
-  StringBuffer buffer = new StringBuffer();
-  var stringSink = new StringConversionSink.fromStringSink(buffer);
-  var byteSink = new Utf8Decoder().startChunkedConversion(stringSink);
-  int i = 0;
-  while (i < bytes.length) {
-    var nextChunk = <int>[];
-    for (int j = 0; j < chunkSize; j++) {
-      if (i < bytes.length) {
-        nextChunk.add(bytes[i]);
-        i++;
-      }
-    }
-    byteSink.add(nextChunk);
-  }
-  byteSink.close();
-  return buffer.toString();
-}
-
-main() {
-  for (var test in UNICODE_TESTS) {
-    var bytes = test[0];
-    var expected = test[1];
-    Expect.stringEquals(expected, decode(bytes, 1));
-    Expect.stringEquals(expected, decode(bytes, 2));
-    Expect.stringEquals(expected, decode(bytes, 3));
-    Expect.stringEquals(expected, decode(bytes, 4));
-  }
-}
diff --git a/tests/lib_2/convert/close_test.dart b/tests/lib_2/convert/close_test.dart
deleted file mode 100644
index 5bf08effed4..00000000000
--- a/tests/lib_2/convert/close_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import "dart:convert";
-
-class MySink implements Sink<List<int>> {
-  List<int> accumulated = <int>[];
-  bool isClosed = false;
-
-  int add(List<int> list) {
-    accumulated.addAll(list);
-    return list.length;
-  }
-
-  String close() {
-    isClosed = true;
-    // Returning a value here triggered a bug, where the caller was trying to
-    // pass the value through its 'void' return type.
-    // Example: void close() => _sink.close();
-    return "done";
-  }
-}
-
-main() {
-  var mySink = new MySink();
-  var byteSink = new ByteConversionSink.from(mySink);
-  byteSink.add([1, 2, 3]);
-  byteSink.close();
-  Expect.listEquals([1, 2, 3], mySink.accumulated);
-  Expect.isTrue(mySink.isClosed);
-}
diff --git a/tests/lib_2/convert/codec1_test.dart b/tests/lib_2/convert/codec1_test.dart
deleted file mode 100644
index 70c013e22ce..00000000000
--- a/tests/lib_2/convert/codec1_test.dart
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:convert';
-
-import 'package:expect/expect.dart';
-
-class MyCodec extends Codec<int, String> {
-  const MyCodec();
-
-  final Converter<int, String> encoder = const IntStringConverter();
-  final Converter<String, int> decoder = const StringIntConverter();
-}
-
-class IntStringConverter extends Converter<int, String> {
-  const IntStringConverter();
-
-  String convert(int i) => i.toString();
-}
-
-class StringIntConverter extends Converter<String, int> {
-  const StringIntConverter();
-
-  int convert(String str) => int.parse(str);
-}
-
-class MyCodec2 extends Codec<int, String> {
-  const MyCodec2();
-
-  Converter<int, String> get encoder => new IntStringConverter2();
-  Converter<String, int> get decoder => new StringIntConverter2();
-}
-
-class IntStringConverter2 extends Converter<int, String> {
-  String convert(int i) => (i + 99).toString();
-}
-
-class StringIntConverter2 extends Converter<String, int> {
-  int convert(String str) => int.parse(str) + 400;
-}
-
-const TEST_CODEC = const MyCodec();
-const TEST_CODEC2 = const MyCodec2();
-
-main() {
-  Expect.equals("0", TEST_CODEC.encode(0));
-  Expect.equals(5, TEST_CODEC.decode("5"));
-  Expect.equals(3, TEST_CODEC.decode(TEST_CODEC.encode(3)));
-
-  Expect.equals("99", TEST_CODEC2.encode(0));
-  Expect.equals(405, TEST_CODEC2.decode("5"));
-  Expect.equals(499, TEST_CODEC2.decode(TEST_CODEC2.encode(0)));
-
-  var inverted, fused;
-  inverted = TEST_CODEC.inverted;
-  fused = TEST_CODEC.fuse(inverted);
-  Expect.equals(499, fused.encode(499));
-  Expect.equals(499, fused.decode(499));
-
-  fused = inverted.fuse(TEST_CODEC);
-  Expect.equals("499", fused.encode("499"));
-  Expect.equals("499", fused.decode("499"));
-
-  inverted = TEST_CODEC2.inverted;
-  fused = TEST_CODEC2.fuse(inverted);
-  Expect.equals(499, fused.encode(0));
-  Expect.equals(499, fused.decode(0));
-
-  fused = TEST_CODEC.fuse(inverted);
-  Expect.equals(405, fused.encode(5));
-  Expect.equals(101, fused.decode(2));
-}
diff --git a/tests/lib_2/convert/codec2_test.dart b/tests/lib_2/convert/codec2_test.dart
deleted file mode 100644
index 18bf5f44fbf..00000000000
--- a/tests/lib_2/convert/codec2_test.dart
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:convert';
-
-import 'package:expect/expect.dart';
-
-main() {
-  final RAW = '["122ç",50,50,231]';
-  final ENCODED = const [
-    91,
-    34,
-    49,
-    50,
-    50,
-    195,
-    167,
-    34,
-    44,
-    53,
-    48,
-    44,
-    53,
-    48,
-    44,
-    50,
-    51,
-    49,
-    93
-  ];
-  Expect.listEquals(ENCODED, utf8.encode(RAW));
-  Expect.equals(RAW, utf8.decode(ENCODED));
-
-  Expect.listEquals([], utf8.encode(""));
-  Expect.equals("", utf8.decode([]));
-
-  final JSON_ENCODED = RAW;
-  Expect.equals(JSON_ENCODED, json.encode(["122ç", 50, 50, 231]));
-  Expect.listEquals(["122ç", 50, 50, 231], json.decode(JSON_ENCODED));
-
-  // Test that the reviver is passed to the decoder.
-  var decoded = json.decode('{"p": 5}', reviver: (dynamic k, dynamic v) {
-    if (k == null) return v;
-    return v * 2;
-  });
-  Expect.equals(10, decoded["p"]);
-  var jsonWithReviver = new JsonCodec.withReviver((dynamic k, dynamic v) {
-    if (k == null) return v;
-    return v * 2;
-  });
-  decoded = jsonWithReviver.decode('{"p": 5}');
-  Expect.equals(10, decoded["p"]);
-
-  // Test example from comments.
-  final JSON_TO_BYTES = json.fuse(utf8);
-  List<int> bytes = JSON_TO_BYTES.encode(["json-object"]);
-  decoded = JSON_TO_BYTES.decode(bytes);
-  Expect.isTrue(decoded is List);
-  Expect.equals("json-object", (decoded as List)[0]);
-}
diff --git a/tests/lib_2/convert/encoding_test.dart b/tests/lib_2/convert/encoding_test.dart
deleted file mode 100644
index ece01068ad0..00000000000
--- a/tests/lib_2/convert/encoding_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'dart:convert';
-import 'unicode_tests.dart';
-import "package:async_helper/async_helper.dart";
-
-void runTest(List<int> bytes, expected) {
-  var controller = new StreamController<List<int>>();
-  asyncStart();
-  utf8.decodeStream(controller.stream).then((decoded) {
-    Expect.equals(expected, decoded);
-    asyncEnd();
-  });
-  int i = 0;
-  while (i < bytes.length) {
-    List nextChunk = <int>[];
-    for (int j = 0; j < 3; j++) {
-      if (i < bytes.length) {
-        nextChunk.add(bytes[i]);
-        i++;
-      }
-    }
-    controller.add(nextChunk);
-  }
-  controller.close();
-}
-
-main() {
-  for (var test in UNICODE_TESTS) {
-    var bytes = test[0];
-    var expected = test[1];
-    runTest(bytes, expected);
-  }
-}
diff --git a/tests/lib_2/convert/html_escape_test.dart b/tests/lib_2/convert/html_escape_test.dart
deleted file mode 100644
index 3603447fc28..00000000000
--- a/tests/lib_2/convert/html_escape_test.dart
+++ /dev/null
@@ -1,91 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'dart:convert';
-
-const _NOOP = 'Nothing_to_escape';
-
-const _TEST_INPUT = """<A </test> of \xA0 "double" & 'single' values>""";
-
-const _OUTPUT_UNKNOWN = '&lt;A &lt;&#47;test&gt; of \xA0 &quot;double&quot; '
-    '&amp; &#39;single&#39; values&gt;';
-
-const _OUTPUT_ATTRIBUTE =
-    "&lt;A &lt;/test&gt; of \xA0 &quot;double&quot; &amp; 'single' values&gt;";
-
-const _OUTPUT_SQ_ATTRIBUTE =
-    '&lt;A &lt;/test&gt; of \xA0 "double" &amp; &#39;single&#39; values&gt;';
-
-const _OUTPUT_ELEMENT =
-    """&lt;A &lt;/test&gt; of \xA0 "double" &amp; 'single' values&gt;""";
-
-void _testMode(HtmlEscape escape, String input, String expected) {
-  _testConvert(escape, input, expected);
-  _testTransform(escape, input, expected);
-  _testChunked(escape, input, expected);
-}
-
-void _testChunked(HtmlEscape escape, String input, String expected) {
-  var buffer = new StringBuffer();
-
-  var rootSink = new StringConversionSink.fromStringSink(buffer);
-  var sink = escape.startChunkedConversion(rootSink);
-
-  sink.addSlice("1" + input + "2", 1, input.length + 1, false);
-  sink.close();
-
-  Expect.equals(expected, buffer.toString());
-}
-
-void _testConvert(HtmlEscape escape, String input, String expected) {
-  var output = escape.convert(input);
-  Expect.equals(expected, output);
-}
-
-void _testTransform(HtmlEscape escape, String input, String expected) {
-  var controller = new StreamController<String>(sync: true);
-
-  var stream = controller.stream.transform(escape);
-
-  var done = false;
-  int count = 0;
-
-  void stringData(value) {
-    Expect.equals(expected, value);
-    count++;
-  }
-
-  void streamClosed() {
-    done = true;
-  }
-
-  stream.listen(stringData, onDone: streamClosed);
-
-  for (var i = 0; i < _COUNT; i++) {
-    controller.add(input);
-  }
-  controller.close();
-  Expect.isTrue(done);
-  Expect.equals(_COUNT, count);
-}
-
-const _COUNT = 3;
-
-void main() {
-  _testMode(htmlEscape, _TEST_INPUT, _OUTPUT_UNKNOWN);
-  _testMode(const HtmlEscape(), _TEST_INPUT, _OUTPUT_UNKNOWN);
-  _testMode(
-      const HtmlEscape(HtmlEscapeMode.unknown), _TEST_INPUT, _OUTPUT_UNKNOWN);
-  _testMode(const HtmlEscape(HtmlEscapeMode.attribute), _TEST_INPUT,
-      _OUTPUT_ATTRIBUTE);
-  _testMode(const HtmlEscape(HtmlEscapeMode.sqAttribute), _TEST_INPUT,
-      _OUTPUT_SQ_ATTRIBUTE);
-  _testMode(
-      const HtmlEscape(HtmlEscapeMode.element), _TEST_INPUT, _OUTPUT_ELEMENT);
-  _testMode(htmlEscape, _NOOP, _NOOP);
-}
diff --git a/tests/lib_2/convert/json_chunk_test.dart b/tests/lib_2/convert/json_chunk_test.dart
deleted file mode 100644
index 8fb5df54552..00000000000
--- a/tests/lib_2/convert/json_chunk_test.dart
+++ /dev/null
@@ -1,173 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library json_test;
-
-import "package:expect/expect.dart";
-import "dart:convert";
-
-jsonTest(testName, expect, action(sink)) {
-  var sink = new ChunkedConversionSink.withCallback((values) {
-    var value = values[0];
-    Expect.equals(expect, value, "$testName:$value");
-  });
-  var decoderSink = json.decoder.startChunkedConversion(sink);
-  action(decoderSink);
-}
-
-jsonThrowsTest(testName, action(sink)) {
-  var sink = new ChunkedConversionSink.withCallback((values) {
-    Expect.fail("Should have thrown: $testName");
-  });
-  var decoderSink = json.decoder.startChunkedConversion(sink);
-  Expect.throwsFormatException(() => action(decoderSink), testName);
-}
-
-main() {
-  testNumbers();
-  testStrings();
-  testKeywords();
-}
-
-void testStrings() {
-  var s = r'"abc\f\n\r\t\b\"\/\\\u0001\u9999\uffff"';
-  var expected = "abc\f\n\r\t\b\"\/\\\u0001\u9999\uffff";
-  for (var i = 1; i < s.length - 1; i++) {
-    var s1 = s.substring(0, i);
-    var s2 = s.substring(i);
-    jsonTest("$s1|$s2", expected, (sink) {
-      sink.add(s1);
-      sink.add(s2);
-      sink.close();
-    });
-    jsonTest("$s1|$s2", expected, (sink) {
-      sink.addSlice(s, 0, i, false);
-      sink.addSlice(s, i, s.length, true);
-    });
-    for (var j = i; j < s.length - 1; j++) {
-      var s2a = s.substring(i, j);
-      var s2b = s.substring(j);
-      jsonTest("$s1|$s2a|$s2b", expected, (sink) {
-        sink.add(s1);
-        sink.add(s2a);
-        sink.add(s2b);
-        sink.close();
-      });
-    }
-  }
-}
-
-void testNumbers() {
-  void testNumber(number) {
-    var expected = num.parse(number);
-    for (int i = 1; i < number.length - 1; i++) {
-      var p1 = number.substring(0, i);
-      var p2 = number.substring(i);
-      jsonTest("$p1|$p2", expected, (sink) {
-        sink.add(p1);
-        sink.add(p2);
-        sink.close();
-      });
-
-      jsonTest("$p1|$p2/slice", expected, (sink) {
-        sink.addSlice(number, 0, i, false);
-        sink.addSlice(number, i, number.length, true);
-      });
-
-      for (int j = i; j < number.length - 1; j++) {
-        var p2a = number.substring(i, j);
-        var p2b = number.substring(j);
-        jsonTest("$p1|$p2a|$p2b", expected, (sink) {
-          sink.add(p1);
-          sink.add(p2a);
-          sink.add(p2b);
-          sink.close();
-        });
-      }
-    }
-  }
-
-  for (var sign in ["-", ""]) {
-    for (var intPart in ["0", "1", "99"]) {
-      for (var decimalPoint in [".", ""]) {
-        for (var decimals in decimalPoint.isEmpty ? [""] : ["0", "99"]) {
-          for (var e in ["e", "e-", "e+", ""]) {
-            for (var exp in e.isEmpty ? [""] : ["0", "2", "22", "34"]) {
-              testNumber("$sign$intPart$decimalPoint$decimals$e$exp");
-            }
-          }
-        }
-      }
-    }
-  }
-
-  void negativeTest(number) {
-    for (int i = 1; i < number.length - 1; i++) {
-      var p1 = number.substring(0, i);
-      var p2 = number.substring(i);
-      jsonThrowsTest("$p1|$p2", (sink) {
-        sink.add(p1);
-        sink.add(p2);
-        sink.close();
-      });
-
-      jsonThrowsTest("$p1|$p2/slice", (sink) {
-        sink.addSlice(number, 0, i, false);
-        sink.addSlice(number, i, number.length, true);
-      });
-
-      for (int j = i; j < number.length - 1; j++) {
-        var p2a = number.substring(i, j);
-        var p2b = number.substring(j);
-        jsonThrowsTest("$p1|$p2a|$p2b", (sink) {
-          sink.add(p1);
-          sink.add(p2a);
-          sink.add(p2b);
-          sink.close();
-        });
-      }
-    }
-  }
-
-  negativeTest("+1e");
-  negativeTest("-00");
-  negativeTest("01");
-  negativeTest(".1");
-  negativeTest("0.");
-  negativeTest("0.e1");
-  negativeTest("1e");
-  negativeTest("1e+");
-  negativeTest("1e-");
-}
-
-void testKeywords() {
-  for (var expected in [null, true, false]) {
-    var s = "$expected";
-    for (int i = 1; i < s.length - 1; i++) {
-      var s1 = s.substring(0, i);
-      var s2 = s.substring(i);
-      jsonTest("$s1|$s2", expected, (sink) {
-        sink.add(s1);
-        sink.add(s2);
-        sink.close();
-      });
-      jsonTest("$s1|$s2", expected, (sink) {
-        sink.addSlice(s, 0, i, false);
-        sink.addSlice(s, i, s.length, true);
-      });
-      for (var j = i; j < s.length - 1; j++) {
-        var s2a = s.substring(i, j);
-        var s2b = s.substring(j);
-        jsonTest("$s1|$s2a|$s2b", expected, (sink) {
-          sink.add(s1);
-          sink.add(s2a);
-          sink.add(s2b);
-          sink.close();
-        });
-      }
-    }
-  }
-}
diff --git a/tests/lib_2/convert/json_lib_test.dart b/tests/lib_2/convert/json_lib_test.dart
deleted file mode 100644
index 0ff1bdf30ab..00000000000
--- a/tests/lib_2/convert/json_lib_test.dart
+++ /dev/null
@@ -1,213 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'dart:convert';
-
-main() {
-  testParsing();
-  testStringify();
-  testStringifyErrors();
-}
-
-void testParsing() {
-  // Scalars.
-  Expect.equals(5, json.decode(' 5 '));
-  Expect.equals(-42, json.decode(' -42 '));
-  Expect.equals(3, json.decode(' 3e0 '));
-  Expect.equals(3.14, json.decode(' 3.14 '));
-  Expect.isTrue(json.decode('true '));
-  Expect.isFalse(json.decode(' false'));
-  Expect.isNull(json.decode(' null '));
-  Expect.isNull(json.decode('\n\rnull\t'));
-  Expect.equals('hi there" bob', json.decode(' "hi there\\" bob" '));
-  Expect.equals('', json.decode(' "" '));
-
-  // Lists.
-  Expect.deepEquals([], json.decode(' [] '));
-  Expect.deepEquals([], json.decode('[ ]'));
-  Expect.deepEquals([3, -4.5, true, 'hi', false],
-      json.decode(' [3, -4.5, true, "hi", false] '));
-  // Nulls are tricky.
-  Expect.deepEquals([null], json.decode('[null]'));
-  Expect.deepEquals([3, -4.5, null, true, 'hi', false],
-      json.decode(' [3, -4.5, null, true, "hi", false] '));
-  Expect.deepEquals([
-    [null]
-  ], json.decode('[[null]]'));
-  Expect.deepEquals([
-    [3],
-    [],
-    [null],
-    ['hi', true]
-  ], json.decode(' [ [3], [], [null], ["hi", true]] '));
-
-  // Maps.
-  Expect.deepEquals({}, json.decode(' {} '));
-  Expect.deepEquals({}, json.decode('{ }'));
-
-  Expect.deepEquals({"x": 3, "y": -4.5, "z": "hi", "u": true, "v": false},
-      json.decode(' {"x":3, "y": -4.5,  "z" : "hi","u" : true, "v": false } '));
-
-  Expect.deepEquals({"x": 3, "y": -4.5, "z": "hi"},
-      json.decode(' {"x":3, "y": -4.5,  "z" : "hi" } '));
-
-  Expect.deepEquals({"y": -4.5, "z": "hi", "x": 3},
-      json.decode(' {"y": -4.5,  "z" : "hi" ,"x":3 } '));
-
-  Expect.deepEquals(
-      {" hi bob ": 3, "": 4.5}, json.decode('{ " hi bob " :3, "": 4.5}'));
-
-  Expect.deepEquals({'x': {}}, json.decode(' { "x" : { } } '));
-  Expect.deepEquals({'x': {}}, json.decode('{"x":{}}'));
-
-  // Nulls are tricky.
-  Expect.deepEquals({'w': null}, json.decode('{"w":null}'));
-
-  Expect.deepEquals({
-    "x": {"w": null}
-  }, json.decode('{"x":{"w":null}}'));
-
-  Expect.deepEquals(
-      {"x": 3, "y": -4.5, "z": "hi", "w": null, "u": true, "v": false},
-      json.decode(' {"x":3, "y": -4.5,  "z" : "hi",'
-          '"w":null, "u" : true, "v": false } '));
-
-  Expect.deepEquals(
-      {
-        "x": {"a": 3, "b": -4.5},
-        "y": [{}],
-        "z": "hi",
-        "w": {"c": null, "d": true},
-        "v": null
-      },
-      json.decode('{"x": {"a":3, "b": -4.5}, "y":[{}], '
-          '"z":"hi","w":{"c":null,"d":true}, "v":null}'));
-}
-
-void testStringify() {
-  // Scalars.
-  Expect.equals('5', json.encode(5));
-  Expect.equals('-42', json.encode(-42));
-  // Dart does not guarantee a formatting for doubles,
-  // so reparse and compare to the original.
-  validateRoundTrip(3.14);
-  Expect.equals('true', json.encode(true));
-  Expect.equals('false', json.encode(false));
-  Expect.equals('null', json.encode(null));
-  Expect.equals('" hi there\\" bob "', json.encode(' hi there" bob '));
-  Expect.equals('"hi\\\\there"', json.encode('hi\\there'));
-  Expect.equals('"hi\\nthere"', json.encode('hi\nthere'));
-  Expect.equals('"hi\\r\\nthere"', json.encode('hi\r\nthere'));
-  Expect.equals('""', json.encode(''));
-
-  // Lists.
-  Expect.equals('[]', json.encode([]));
-  Expect.equals('[]', json.encode(new List.filled(0, null)));
-  Expect.equals('[null,null,null]', json.encode(new List.filled(3, null)));
-  validateRoundTrip([3, -4.5, null, true, 'hi', false]);
-  Expect.equals(
-      '[[3],[],[null],["hi",true]]',
-      json.encode([
-        [3],
-        [],
-        [null],
-        ['hi', true]
-      ]));
-
-  // Maps.
-  Expect.equals('{}', json.encode({}));
-  Expect.equals('{}', json.encode(new Map()));
-  Expect.equals('{"x":{}}', json.encode({'x': {}}));
-  Expect.equals(
-      '{"x":{"a":3}}',
-      json.encode({
-        'x': {'a': 3}
-      }));
-
-  // Dart does not guarantee an order on the keys
-  // of a map literal, so reparse and compare to the original Map.
-  validateRoundTrip(
-      {'x': 3, 'y': -4.5, 'z': 'hi', 'w': null, 'u': true, 'v': false});
-  validateRoundTrip({"x": 3, "y": -4.5, "z": 'hi'});
-  validateRoundTrip({' hi bob ': 3, '': 4.5});
-  validateRoundTrip({
-    'x': {'a': 3, 'b': -4.5},
-    'y': [{}],
-    'z': 'hi',
-    'w': {'c': null, 'd': true},
-    'v': null
-  });
-
-  Expect.equals("4", json.encode(new ToJson(4)));
-  Expect.equals('[4,"a"]', json.encode(new ToJson([4, "a"])));
-  Expect.equals(
-      '[4,{"x":42}]',
-      json.encode(new ToJson([
-        4,
-        new ToJson({"x": 42})
-      ])));
-
-  expectThrowsJsonError(() => json.encode([new ToJson(new ToJson(4))]));
-  expectThrowsJsonError(() => json.encode([new Object()]));
-}
-
-void testStringifyErrors() {
-  // Throws if argument cannot be converted.
-  expectThrowsJsonError(() => json.encode(new TestClass()));
-
-  // Throws if toJson throws.
-  expectThrowsJsonError(() => json.encode(new ToJsoner("bad", throws: true)));
-
-  // Throws if toJson returns non-serializable value.
-  expectThrowsJsonError(() => json.encode(new ToJsoner(new TestClass())));
-
-  // Throws on cyclic values.
-  var a = [];
-  var b = a;
-  for (int i = 0; i < 50; i++) {
-    b = [b];
-  }
-  a.add(b);
-  expectThrowsJsonError(() => json.encode(a));
-}
-
-void expectThrowsJsonError(void f()) {
-  Expect.throws(f, (e) => e is JsonUnsupportedObjectError);
-}
-
-class TestClass {
-  int x;
-  String y;
-
-  TestClass()
-      : x = 3,
-        y = 'joe' {}
-}
-
-class ToJsoner {
-  final Object returnValue;
-  final bool throws;
-  ToJsoner(this.returnValue, {this.throws});
-  Object toJson() {
-    if (throws) throw returnValue;
-    return returnValue;
-  }
-}
-
-class ToJson {
-  final object;
-  const ToJson(this.object);
-  toJson() => object;
-}
-
-/**
- * Checks that the argument can be converted to a JSON string and
- * back, and produce something equivalent to the argument.
- */
-validateRoundTrip(expected) {
-  Expect.deepEquals(expected, json.decode(json.encode(expected)));
-}
diff --git a/tests/lib_2/convert/json_pretty_test.dart b/tests/lib_2/convert/json_pretty_test.dart
deleted file mode 100644
index f95eb9e3894..00000000000
--- a/tests/lib_2/convert/json_pretty_test.dart
+++ /dev/null
@@ -1,133 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Note: This test relies on LF line endings in the source file.
-// It requires an entry in the .gitattributes file.
-
-library json_pretty_test;
-
-import 'dart:convert';
-
-import "package:expect/expect.dart";
-
-void _testIndentWithNullChar() {
-  var encoder = const JsonEncoder.withIndent('\x00');
-  var encoded = encoder.convert([
-    [],
-    [[]]
-  ]);
-  Expect.equals("[\n\x00[],\n\x00[\n\x00\x00[]\n\x00]\n]", encoded);
-}
-
-void main() {
-  _testIndentWithNullChar();
-
-  _expect(null, 'null');
-
-  _expect([
-    [],
-    [[]]
-  ], '''
-[
-  [],
-  [
-    []
-  ]
-]''');
-
-  _expect([1, 2, 3, 4], '''
-[
-  1,
-  2,
-  3,
-  4
-]''');
-
-  _expect([true, null, 'hello', 42.42], '''
-[
-  true,
-  null,
-  "hello",
-  42.42
-]''');
-
-  _expect({"hello": [], "goodbye": {}}, '''{
-  "hello": [],
-  "goodbye": {}
-}''');
-
-  _expect([
-    "test",
-    1,
-    2,
-    33234.324,
-    true,
-    false,
-    null,
-    {
-      "test1": "test2",
-      "test3": "test4",
-      "grace": 5,
-      "shanna": [0, 1, 2]
-    },
-    {
-      "lib": "app.dart",
-      "src": ["foo.dart", "bar.dart"]
-    }
-  ], '''[
-  "test",
-  1,
-  2,
-  33234.324,
-  true,
-  false,
-  null,
-  {
-    "test1": "test2",
-    "test3": "test4",
-    "grace": 5,
-    "shanna": [
-      0,
-      1,
-      2
-    ]
-  },
-  {
-    "lib": "app.dart",
-    "src": [
-      "foo.dart",
-      "bar.dart"
-    ]
-  }
-]''');
-}
-
-void _expect(Object object, String expected) {
-  var encoder = const JsonEncoder.withIndent('  ');
-  var prettyOutput = encoder.convert(object);
-
-  Expect.equals(expected, prettyOutput);
-
-  encoder = const JsonEncoder.withIndent('');
-
-  var flatOutput = encoder.convert(object);
-
-  var flatExpected = const LineSplitter()
-      .convert(expected)
-      .map((line) => line.trimLeft())
-      .join('\n');
-
-  Expect.equals(flatExpected, flatOutput);
-
-  var compactOutput = json.encode(object);
-
-  encoder = const JsonEncoder.withIndent(null);
-  Expect.equals(compactOutput, encoder.convert(object));
-
-  var prettyDecoded = json.decode(prettyOutput);
-
-  Expect.equals(compactOutput, json.encode(prettyDecoded));
-}
diff --git a/tests/lib_2/convert/json_test.dart b/tests/lib_2/convert/json_test.dart
deleted file mode 100644
index bd35b0dd7c9..00000000000
--- a/tests/lib_2/convert/json_test.dart
+++ /dev/null
@@ -1,421 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Disable background compilation so that the Issue 24908 can be reproduced.
-// VMOptions=--no-background-compilation
-
-// @dart = 2.9
-
-library json_test;
-
-import "package:expect/expect.dart";
-import "dart:convert";
-
-void testJson(jsonText, expected) {
-  compare(expected, actual, path) {
-    if (expected is List) {
-      Expect.isTrue(actual is List);
-      Expect.equals(expected.length, actual.length, "$path: List length");
-      for (int i = 0; i < expected.length; i++) {
-        compare(expected[i], actual[i], "$path[$i] in $jsonText");
-      }
-    } else if (expected is Map) {
-      Expect.isTrue(actual is Map);
-      Expect.equals(expected.length, actual.length,
-          "$path: Map size in $jsonText");
-      expected.forEach((key, value) {
-        Expect.isTrue(actual.containsKey(key));
-        compare(value, actual[key], "$path[$key] in $jsonText");
-      });
-    } else if (expected is num) {
-      Expect.equals(expected is int, actual is int,
-          "$path: not same number type in $jsonText");
-      Expect.isTrue(expected.compareTo(actual) == 0,
-          "$path: Expected: $expected, was: $actual in $jsonText");
-    } else {
-      // String, bool, null.
-      Expect.equals(expected, actual, "$path in $jsonText");
-    }
-  }
-
-  for (var reviver in [null, (k, v) => v]) {
-    for (var split in [0, 1, 2, 3, 4, 5]) {
-      var name = (reviver == null) ? "" : "reviver:";
-      var sink = new ChunkedConversionSink.withCallback((values) {
-        var value = values[0];
-        compare(expected, value, "$name$value");
-      });
-      var decoderSink = json.decoder.startChunkedConversion(sink);
-      switch (split) {
-        case 0:
-          // Split after first char.
-          decoderSink.add(jsonText.substring(0, 1));
-          decoderSink.add(jsonText.substring(1));
-          decoderSink.close();
-          break;
-        case 1:
-          // Split before last char.
-          int length = jsonText.length;
-          decoderSink.add(jsonText.substring(0, length - 1));
-          decoderSink.add(jsonText.substring(length - 1));
-          decoderSink.close();
-          break;
-        case 2:
-          // Split in middle.
-          int half = jsonText.length ~/ 2;
-          decoderSink.add(jsonText.substring(0, half));
-          decoderSink.add(jsonText.substring(half));
-          decoderSink.close();
-          break;
-        case 3:
-          // Split in three chunks.
-          int length = jsonText.length;
-          int third = length ~/ 3;
-          decoderSink.add(jsonText.substring(0, third));
-          decoderSink.add(jsonText.substring(third, 2 * third));
-          decoderSink.add(jsonText.substring(2 * third));
-          decoderSink.close();
-          break;
-        case 4:
-          // Use .decode
-          sink.add([json.decode(jsonText)]);
-          break;
-        case 5:
-          // Use jsonDecode
-          sink.add([jsonDecode(jsonText)]);
-          break;
-      }
-    }
-  }
-}
-
-String escape(String s) {
-  var sb = new StringBuffer();
-  for (int i = 0; i < s.length; i++) {
-    int code = s.codeUnitAt(i);
-    if (code == '\\'.codeUnitAt(0))
-      sb.write(r'\\');
-    else if (code == '\"'.codeUnitAt(0))
-      sb.write(r'\"');
-    else if (code >= 32 && code < 127)
-      sb.writeCharCode(code);
-    else {
-      String hex = '000${code.toRadixString(16)}';
-      sb.write(r'\u' '${hex.substring(hex.length - 4)}');
-    }
-  }
-  return '$sb';
-}
-
-void testThrows(jsonText) {
-  var message = "json = '${escape(jsonText)}'";
-  Expect.throwsFormatException(() => json.decode(jsonText),
-      "json.decode, $message");
-  Expect.throwsFormatException(() => jsonDecode(jsonText),
-      "jsonDecode, $message");
-  Expect.throwsFormatException(() => json.decoder.convert(jsonText),
-      "json.decoder.convert, $message");
-  Expect.throwsFormatException(() =>
-      utf8.decoder.fuse(json.decoder).convert(utf8.encode(jsonText)),
-      "utf8.decoder.fuse(json.decoder) o utf.encode, $message");
-}
-
-testNumbers() {
-  // Positive tests for number formats.
-  var integerList = ["0", "9", "9999"];
-  var signList = ["", "-"];
-  var fractionList = ["", ".0", ".1", ".99999"];
-  var exponentList = [""];
-  for (var exphead in ["e", "E", "e-", "E-", "e+", "E+"]) {
-    for (var expval in ["0", "1", "200"]) {
-      exponentList.add("$exphead$expval");
-    }
-  }
-
-  for (var integer in integerList) {
-    for (var sign in signList) {
-      for (var fraction in fractionList) {
-        for (var exp in exponentList) {
-          for (var ws in ["", " ", "\t"]) {
-            var literal = "$ws$sign$integer$fraction$exp$ws";
-            var expectedValue = num.parse(literal);
-            testJson(literal, expectedValue);
-          }
-        }
-      }
-    }
-  }
-
-  // Regression test.
-  // Detect and handle overflow on integer literals by making them doubles
-  // (work like `num.parse`).
-  testJson("9223372036854774784", 9223372036854774784);
-  testJson("-9223372036854775808", -9223372036854775808);
-  testJson("9223372036854775808", 9223372036854775808.0);
-  testJson("-9223372036854775809", -9223372036854775809.0);
-  testJson("9223372036854775808.0", 9223372036854775808.0);
-  testJson("9223372036854775810", 9223372036854775810.0);
-  testJson("18446744073709551616.0", 18446744073709551616.0);
-  testJson("1e309", double.infinity);
-  testJson("-1e309", double.negativeInfinity);
-  testJson("1e-325", 0.0);
-  testJson("-1e-325", -0.0);
-  // No overflow on exponent.
-  testJson("1e18446744073709551616", double.infinity);
-  testJson("-1e18446744073709551616", double.negativeInfinity);
-  testJson("1e-18446744073709551616", 0.0);
-  testJson("-1e-18446744073709551616", -0.0);
-
-  // (Wrapping numbers in list because the chunked parsing handles top-level
-  // numbers by buffering and then parsing using platform parser).
-  testJson("[9223372036854774784]", [9223372036854774784]);
-  testJson("[-9223372036854775808]", [-9223372036854775808]);
-  testJson("[9223372036854775808]", [9223372036854775808.0]);
-  testJson("[-9223372036854775809]", [-9223372036854775809.0]);
-  testJson("[9223372036854775808.0]", [9223372036854775808.0]);
-  testJson("[9223372036854775810]", [9223372036854775810.0]);
-  testJson("[18446744073709551616.0]", [18446744073709551616.0]);
-  testJson("[1e309]", [double.infinity]);
-  testJson("[-1e309]", [double.negativeInfinity]);
-  testJson("[1e-325]", [0.0]);
-  testJson("[-1e-325]", [-0.0]);
-  // No overflow on exponent.
-  testJson("[1e18446744073709551616]", [double.infinity]);
-  testJson("[-1e18446744073709551616]", [double.negativeInfinity]);
-  testJson("[1e-18446744073709551616]", [0.0]);
-  testJson("[-1e-18446744073709551616]", [-0.0]);
-
-  // Negative tests (syntax error).
-  // testError thoroughly tests the given parts with a lot of valid
-  // values for the other parts.
-  testError({signs, integers, fractions, exponents}) {
-    def(value, defaultValue) {
-      if (value == null) return defaultValue;
-      if (value is List) return value;
-      return [value];
-    }
-
-    signs = def(signs, signList);
-    integers = def(integers, integerList);
-    fractions = def(fractions, fractionList);
-    exponents = def(exponents, exponentList);
-    for (var integer in integers) {
-      for (var sign in signs) {
-        for (var fraction in fractions) {
-          for (var exponent in exponents) {
-            var literal = "$sign$integer$fraction$exponent";
-            testThrows(literal);
-          }
-        }
-      }
-    }
-  }
-
-  // Doubles overflow to Infinity.
-  testJson("1e+400", double.infinity);
-  // (Integers do not, but we don't have those on dart2js).
-
-  // Integer part cannot be omitted:
-  testError(integers: "");
-
-  // Test for "Initial zero only allowed for zero integer part" moved to
-  // json_strict_test.dart because IE's jsonDecode accepts additional initial
-  // zeros.
-
-  // Only minus allowed as sign.
-  testError(signs: "+");
-  // Requires digits after decimal point.
-  testError(fractions: ".");
-  // Requires exponent digits, and only digits.
-  testError(exponents: ["e", "e+", "e-", "e.0"]);
-
-  // No whitespace inside numbers.
-  // Additional case "- 2.2e+2" in json_strict_test.dart.
-  testThrows("-2 .2e+2");
-  testThrows("-2. 2e+2");
-  testThrows("-2.2 e+2");
-  testThrows("-2.2e +2");
-  testThrows("-2.2e+ 2");
-  testThrows("01");
-  testThrows("0.");
-  testThrows(".0");
-  testThrows("0.e1");
-
-  testThrows("[2.,2]");
-  testThrows("{2.:2}");
-
-  testThrows("NaN");
-  testThrows("Infinity");
-  testThrows("-Infinity");
-  Expect.throws(() => json.encode(double.nan));
-  Expect.throws(() => json.encode(double.infinity));
-  Expect.throws(() => json.encode(double.negativeInfinity));
-  Expect.throws(() => jsonEncode(double.nan));
-  Expect.throws(() => jsonEncode(double.infinity));
-  Expect.throws(() => jsonEncode(double.negativeInfinity));
-}
-
-testStrings() {
-  // String parser accepts and understands escapes.
-  var input = r'"\u0000\uffff\n\r\f\t\b\/\\\"' '\x20\ufffd\uffff"';
-  var expected = "\u0000\uffff\n\r\f\t\b\/\\\"\x20\ufffd\uffff";
-  testJson(input, expected);
-  // Empty string.
-  testJson(r'""', "");
-  // Escape first.
-  var escapes = {
-    "f": "\f",
-    "b": "\b",
-    "n": "\n",
-    "r": "\r",
-    "t": "\t",
-    r"\": r"\",
-    '"': '"',
-    "/": "/",
-  };
-  escapes.forEach((esc, lit) {
-    testJson('"\\$esc........"', "$lit........");
-    // Escape last.
-    testJson('"........\\$esc"', "........$lit");
-    // Escape middle.
-    testJson('"....\\$esc...."', "....$lit....");
-  });
-
-  // Does not accept single quotes.
-  testThrows(r"''");
-  // Throws on unterminated strings.
-  testThrows(r'"......\"');
-  // Throws on unterminated escapes.
-  testThrows(r'"\'); // ' is not escaped.
-  testThrows(r'"\a"');
-  testThrows(r'"\u"');
-  testThrows(r'"\u1"');
-  testThrows(r'"\u12"');
-  testThrows(r'"\u123"');
-  testThrows(r'"\ux"');
-  testThrows(r'"\u1x"');
-  testThrows(r'"\u12x"');
-  testThrows(r'"\u123x"');
-  // Throws on bad escapes.
-  testThrows(r'"\a"');
-  testThrows(r'"\x00"');
-  testThrows(r'"\c2"');
-  testThrows(r'"\000"');
-  testThrows(r'"\u{0}"');
-  testThrows(r'"\%"');
-  testThrows('"\\\x00"'); // Not raw string!
-  // Throws on control characters.
-  for (int i = 0; i < 32; i++) {
-    var string = new String.fromCharCodes([0x22, i, 0x22]); // '"\x00"' etc.
-    testThrows(string);
-  }
-}
-
-testObjects() {
-  testJson(r'{}', {});
-  testJson(r'{"x":42}', {"x": 42});
-  testJson(r'{"x":{"x":{"x":42}}}', {
-    "x": {
-      "x": {"x": 42}
-    }
-  });
-  testJson(r'{"x":10,"x":42}', {"x": 42});
-  testJson(r'{"":42}', {"": 42});
-
-  // Keys must be strings.
-  testThrows(r'{x:10}');
-  testThrows(r'{true:10}');
-  testThrows(r'{false:10}');
-  testThrows(r'{null:10}');
-  testThrows(r'{42:10}');
-  testThrows(r'{42e1:10}');
-  testThrows(r'{-42:10}');
-  testThrows(r'{["text"]:10}');
-  testThrows(r'{:10}');
-}
-
-testArrays() {
-  testJson(r'[]', []);
-  testJson(r'[1.1e1,"string",true,false,null,{}]',
-      [1.1e1, "string", true, false, null, {}]);
-  testJson(r'[[[[[[]]]],[[[]]],[[]]]]', [
-    [
-      [
-        [
-          [[]]
-        ]
-      ],
-      [
-        [[]]
-      ],
-      [[]]
-    ]
-  ]);
-  testJson(r'[{},[{}],{"x":[]}]', [
-    {},
-    [{}],
-    {"x": []}
-  ]);
-
-  testThrows(r'[1,,2]');
-  testThrows(r'[1,2,]');
-  testThrows(r'[,2]');
-}
-
-testWords() {
-  testJson(r'true', true);
-  testJson(r'false', false);
-  testJson(r'null', null);
-  testJson(r'[true]', [true]);
-  testJson(r'{"true":true}', {"true": true});
-
-  testThrows(r'truefalse');
-  testThrows(r'trues');
-  testThrows(r'nulll');
-  testThrows(r'full');
-  testThrows(r'nul');
-  testThrows(r'tru');
-  testThrows(r'fals');
-  testThrows(r'\null');
-  testThrows(r't\rue');
-  testThrows(r't\rue');
-}
-
-testWhitespace() {
-  // Valid white-space characters.
-  var v = '\t\r\n\ ';
-  // Invalid white-space and non-recognized characters.
-  var invalids = ['\x00', '\f', '\x08', '\\', '\xa0', '\u2028', '\u2029'];
-
-  // Valid whitespace accepted "everywhere".
-  testJson('$v[${v}-2.2e2$v,$v{$v"key"$v:${v}true$v}$v,$v"ab"$v]$v', [
-    -2.2e2,
-    {"key": true},
-    "ab"
-  ]);
-
-  // IE9 accepts invalid characters at the end, so some of these tests have been
-  // moved to json_strict_test.dart.
-  for (var i in invalids) {
-    testThrows('${i}"s"');
-    testThrows('42${i}');
-    testThrows('$i[]');
-    testThrows('[$i]');
-    testThrows('[$i"s"]');
-    testThrows('["s"$i]');
-    testThrows('$i{"k":"v"}');
-    testThrows('{$i"k":"v"}');
-    testThrows('{"k"$i:"v"}');
-    testThrows('{"k":$i"v"}');
-    testThrows('{"k":"v"$i}');
-  }
-}
-
-main() {
-  testNumbers();
-  testStrings();
-  testWords();
-  testObjects();
-  testArrays();
-  testWhitespace();
-}
diff --git a/tests/lib_2/convert/json_toEncodable_reviver_test.dart b/tests/lib_2/convert/json_toEncodable_reviver_test.dart
deleted file mode 100644
index d247cce324a..00000000000
--- a/tests/lib_2/convert/json_toEncodable_reviver_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library json_tests;
-
-import 'package:expect/expect.dart';
-import 'dart:convert';
-
-class A {
-  final x;
-  A(this.x);
-}
-
-toEncodable(Object a) => {"A": (a as A).x};
-reviver(key, value) {
-  if (value is Map && value.length == 1 && value["A"] != null) {
-    return new A(value["A"]);
-  }
-  return value;
-}
-
-const extendedJson =
-    const JsonCodec(toEncodable: toEncodable, reviver: reviver);
-
-main() {
-  var encoded = extendedJson.encode([
-    new A(0),
-    {"2": new A(1)}
-  ]);
-  Expect.equals('[{"A":0},{"2":{"A":1}}]', encoded);
-  var decoded = extendedJson.decode(encoded);
-  Expect.isTrue(decoded is List);
-  Expect.equals(2, decoded.length);
-  Expect.isTrue(decoded[0] is A);
-  Expect.equals(0, decoded[0].x);
-  Expect.isTrue(decoded[1] is Map);
-  Expect.isNotNull(decoded[1]["2"]);
-  Expect.isTrue(decoded[1]["2"] is A);
-  Expect.equals(1, decoded[1]["2"].x);
-
-  var a = extendedJson.decode(extendedJson.encode(new A(499)));
-  Expect.isTrue(a is A);
-  Expect.equals(499, a.x);
-
-  testInvalidMap();
-}
-
-void testInvalidMap() {
-  var map = {"a": 42, "b": 42, 37: 42}; // Non-string key.
-  var enc = new JsonEncoder((_) => "fixed");
-  var res = enc.convert(map);
-  Expect.equals('"fixed"', res);
-
-  enc = new JsonEncoder.withIndent(" ", (_) => "fixed");
-  res = enc.convert(map);
-  Expect.equals('"fixed"', res);
-}
diff --git a/tests/lib_2/convert/json_unicode_tests.dart b/tests/lib_2/convert/json_unicode_tests.dart
deleted file mode 100644
index 30d6a28c142..00000000000
--- a/tests/lib_2/convert/json_unicode_tests.dart
+++ /dev/null
@@ -1,84 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library json_unicode_tests;
-
-import 'unicode_tests.dart';
-
-const _quote = 0x22; // "
-const _colon = 0x3a; // :
-const _comma = 0x2c; // ,
-const _braceOpen = 0x7b; // {
-const _braceClose = 0x7d; // }
-const _bracketOpen = 0x5b; // [
-const _bracketClose = 0x5d; // ]
-
-_expandUnicodeTests() {
-  return UNICODE_TESTS.expand((test) {
-    // The unicode test will be a string (possibly) containing unicode
-    // characters. It also contains the empty string.
-    // It must not contain a double-quote '"'.
-    assert(!test.contains('"'));
-
-    var bytes = test[0];
-    var string = test[1];
-
-    // expanded will hold all tests that are generated from the unicode test.
-    var expanded = [];
-
-    // Put the string into quotes.
-    // For example: 'abcd' -> '"abcd"'.
-    var inQuotesBytes = <int>[];
-    inQuotesBytes.add(_quote);
-    inQuotesBytes.addAll(bytes);
-    inQuotesBytes.add(_quote);
-    expanded.add([inQuotesBytes, string]);
-
-    // Put the quoted string into a triple nested list.
-    // For example: 'abcd' -> '[[["abcd"]]]'.
-    var listExpected = [
-      [
-        [string]
-      ]
-    ];
-    var inListBytes = <int>[];
-    inListBytes.addAll([_bracketOpen, _bracketOpen, _bracketOpen]);
-    inListBytes.addAll(inQuotesBytes);
-    inListBytes.addAll([_bracketClose, _bracketClose, _bracketClose]);
-    expanded.add([inListBytes, listExpected]);
-
-    // Put the quoted string into a triple nested list and duplicate that
-    // list three times.
-    // For example: 'abcd' -> '[[[["abcd"]]],[[["abcd"]]],[[["abcd"]]]]'.
-    var listLongerExpected = [listExpected, listExpected, listExpected];
-    var listLongerBytes = <int>[];
-    listLongerBytes.add(_bracketOpen);
-    listLongerBytes.addAll(inListBytes);
-    listLongerBytes.add(_comma);
-    listLongerBytes.addAll(inListBytes);
-    listLongerBytes.add(_comma);
-    listLongerBytes.addAll(inListBytes);
-    listLongerBytes.add(_bracketClose);
-    expanded.add([listLongerBytes, listLongerExpected]);
-
-    // Put the previous strings/lists into a map.
-    // For example:
-    //    'abcd' -> '{"abcd":[[[["abcd"]]],[[["abcd"]]],[[["abcd"]]]]}'.
-    var mapExpected = new Map();
-    mapExpected[string] = listLongerExpected;
-    var mapBytes = <int>[];
-    mapBytes.add(_braceOpen);
-    mapBytes.addAll(inQuotesBytes);
-    mapBytes.add(_colon);
-    mapBytes.addAll(listLongerBytes);
-    mapBytes.add(_braceClose);
-    expanded.add([mapBytes, mapExpected]);
-
-    return expanded;
-  }).toList();
-}
-
-final JSON_UNICODE_TESTS = _expandUnicodeTests();
diff --git a/tests/lib_2/convert/json_utf8_chunk_test.dart b/tests/lib_2/convert/json_utf8_chunk_test.dart
deleted file mode 100644
index 99379b7ac38..00000000000
--- a/tests/lib_2/convert/json_utf8_chunk_test.dart
+++ /dev/null
@@ -1,461 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test;
-
-import "package:expect/expect.dart";
-import "dart:convert";
-import "unicode_tests.dart" show UNICODE_TESTS;
-
-main() {
-  testNumbers();
-  testStrings();
-  testKeywords();
-  testAll();
-  testMalformed();
-  testUnicodeTests();
-}
-
-// Create an UTF-8 sink from a chunked JSON decoder, then let [action]
-// put data into it, and check that what comes out is equal to [expect].
-void jsonTest(testName, expect, action(sink), [bool allowMalformed = false]) {
-  jsonParse(testName, (value) {
-    Expect.equals(expect, value, "$testName:$value");
-  }, action, allowMalformed);
-}
-
-void jsonParse(testName, check, action, [bool allowMalformed = false]) {
-  var sink = new ChunkedConversionSink.withCallback((values) {
-    var value = values[0];
-    check(value);
-  });
-  var decoderSink =
-      json.decoder.startChunkedConversion(sink).asUtf8Sink(allowMalformed);
-  try {
-    action(decoderSink);
-  } on FormatException catch (e, s) {
-    print("Source: ${e.source} @ ${e.offset}");
-    Expect.fail("Unexpected throw($testName): $e\n$s");
-  }
-}
-
-void testStrings() {
-  // String literal containing characters, all escape types,
-  // and a number of UTF-8 encoded characters.
-  var s = r'"abc\f\ndef\r\t\b\"\/\\\u0001\u9999\uffff'
-      '\x7f\xc2\x80\xdf\xbf\xe0\xa0\x80\xef\xbf\xbf'
-      '\xf0\x90\x80\x80\xf4\x8f\xbf\xbf"'; // UTF-8.
-  var expected = "abc\f\ndef\r\t\b\"\/\\\u0001\u9999\uffff"
-      "\x7f\x80\u07ff\u0800\uffff"
-      "\u{10000}\u{10ffff}";
-  for (var i = 1; i < s.length - 1; i++) {
-    var s1 = s.substring(0, i);
-    var s2 = s.substring(i);
-    jsonTest("$s1|$s2-$i", expected, (sink) {
-      sink.add(s1.codeUnits);
-      sink.add(s2.codeUnits);
-      sink.close();
-    });
-    jsonTest("$s1|$s2-$i-slice", expected, (sink) {
-      sink.addSlice(s.codeUnits, 0, i, false);
-      sink.addSlice(s.codeUnits, i, s.length, true);
-    });
-    for (var j = i; j < s.length - 1; j++) {
-      var s2a = s.substring(i, j);
-      var s2b = s.substring(j);
-      jsonTest("$s1|$s2a|$s2b-$i-$j", expected, (sink) {
-        sink.add(s1.codeUnits);
-        sink.add(s2a.codeUnits);
-        sink.add(s2b.codeUnits);
-        sink.close();
-      });
-    }
-  }
-}
-
-void testNumbers() {
-  for (var number in [
-    "-0.12e-12",
-    "-34.12E+12",
-    "0.0e0",
-    "9.9E9",
-    "0",
-    "9",
-    "1234.56789123456701418035663664340972900390625",
-    "1.2345678912345671e-14",
-    "9223372036854775807"
-  ]) {
-    var expected = num.parse(number);
-    for (int i = 1; i < number.length - 1; i++) {
-      var p1 = number.substring(0, i);
-      var p2 = number.substring(i);
-      jsonTest("$p1|$p2", expected, (sink) {
-        sink.add(p1.codeUnits);
-        sink.add(p2.codeUnits);
-        sink.close();
-      });
-
-      jsonTest("$p1|$p2/slice", expected, (sink) {
-        sink.addSlice(number.codeUnits, 0, i, false);
-        sink.addSlice(number.codeUnits, i, number.length, true);
-      });
-
-      for (int j = i; j < number.length - 1; j++) {
-        var p2a = number.substring(i, j);
-        var p2b = number.substring(j);
-        jsonTest("$p1|$p2a|$p2b", expected, (sink) {
-          sink.add(p1.codeUnits);
-          sink.add(p2a.codeUnits);
-          sink.add(p2b.codeUnits);
-          sink.close();
-        });
-      }
-    }
-  }
-}
-
-// Test that `null`, `true`, and `false` keywords are decoded correctly.
-void testKeywords() {
-  for (var expected in [null, true, false]) {
-    var s = "$expected";
-    for (int i = 1; i < s.length - 1; i++) {
-      var s1 = s.substring(0, i);
-      var s2 = s.substring(i);
-      jsonTest("$s1|$s2", expected, (sink) {
-        sink.add(s1.codeUnits);
-        sink.add(s2.codeUnits);
-        sink.close();
-      });
-      jsonTest("$s1|$s2", expected, (sink) {
-        sink.addSlice(s.codeUnits, 0, i, false);
-        sink.addSlice(s.codeUnits, i, s.length, true);
-      });
-      for (var j = i; j < s.length - 1; j++) {
-        var s2a = s.substring(i, j);
-        var s2b = s.substring(j);
-        jsonTest("$s1|$s2a|$s2b", expected, (sink) {
-          sink.add(s1.codeUnits);
-          sink.add(s2a.codeUnits);
-          sink.add(s2b.codeUnits);
-          sink.close();
-        });
-      }
-    }
-  }
-}
-
-// Tests combinations of numbers, strings and keywords.
-void testAll() {
-  var s = r'{"":[true,false,42, -33e-3,null,"\u0080"], "z": 0}';
-  bool check(o) {
-    if (o is Map) {
-      Expect.equals(2, o.length);
-      Expect.equals(0, o["z"]);
-      var v = o[""];
-      if (v is List) {
-        Expect.listEquals([true, false, 42, -33e-3, null, "\u0080"], v);
-      } else {
-        Expect.fail("Expected list, found ${v.runtimeType}");
-      }
-    } else {
-      Expect.fail("Expected map, found ${o.runtimeType}");
-    }
-  }
-
-  for (var i = 1; i < s.length - 1; i++) {
-    var s1 = s.substring(0, i);
-    var s2 = s.substring(i);
-    jsonParse("$s1|$s2-$i", check, (sink) {
-      sink.add(s1.codeUnits);
-      sink.add(s2.codeUnits);
-      sink.close();
-    });
-    jsonParse("$s1|$s2-$i-slice", check, (sink) {
-      sink.addSlice(s.codeUnits, 0, i, false);
-      sink.addSlice(s.codeUnits, i, s.length, true);
-    });
-    for (var j = i; j < s.length - 1; j++) {
-      var s2a = s.substring(i, j);
-      var s2b = s.substring(j);
-      jsonParse("$s1|$s2a|$s2b-$i-$j", check, (sink) {
-        sink.add(s1.codeUnits);
-        sink.add(s2a.codeUnits);
-        sink.add(s2b.codeUnits);
-        sink.close();
-      });
-    }
-  }
-}
-
-// Check that [codes] decode to [expect] when allowing malformed UTF-8,
-// and throws otherwise.
-void jsonMalformedTest(name, expect, codes) {
-  // Helper method.
-  void test(name, expect, action(sink)) {
-    var tag = "Malform:$name-$expect";
-    {
-      // Allowing malformed, expect [expect]
-      var sink = new ChunkedConversionSink.withCallback((values) {
-        var value = values[0];
-        Expect.equals(expect, value, tag);
-      });
-      var decoderSink =
-          json.decoder.startChunkedConversion(sink).asUtf8Sink(true);
-      try {
-        action(decoderSink);
-      } catch (e, s) {
-        Expect.fail("Unexpected throw ($tag): $e\n$s");
-      }
-    }
-    {
-      // Not allowing malformed, expect throw.
-      var sink = new ChunkedConversionSink.withCallback((values) {
-        Expect.fail(tag);
-      });
-      var decoderSink =
-          json.decoder.startChunkedConversion(sink).asUtf8Sink(false);
-      Expect.throws(() {
-        action(decoderSink);
-      }, null, tag);
-    }
-  }
-
-  // Test all two and three part slices.
-  for (int i = 1; i < codes.length - 1; i++) {
-    test("$name:$i", expect, (sink) {
-      sink.add(codes.sublist(0, i));
-      sink.add(codes.sublist(i));
-      sink.close();
-    });
-    test("$name:$i-slice", expect, (sink) {
-      sink.addSlice(codes, 0, i, false);
-      sink.addSlice(codes, i, codes.length, true);
-    });
-    for (int j = i; j < codes.length - 1; j++) {
-      test("$name:$i|$j", expect, (sink) {
-        sink.add(codes.sublist(0, i));
-        sink.add(codes.sublist(i, j));
-        sink.add(codes.sublist(j));
-        sink.close();
-      });
-    }
-  }
-}
-
-// Test that `codeString.codeUnits` fails to parse as UTF-8 JSON,
-// even with decoder not throwing on malformed encodings.
-void jsonThrows(String name, String codeString) {
-  testJsonThrows(tag, action) {
-    // Not allowing malformed, expect throw.
-    var sink = new ChunkedConversionSink.withCallback((values) {
-      Expect.fail(tag);
-    });
-    var decoderSink =
-        json.decoder.startChunkedConversion(sink).asUtf8Sink(true);
-    Expect.throws(() {
-      action(decoderSink);
-    }, null, tag);
-  }
-
-  var codes = codeString.codeUnits;
-  for (int i = 1; i < codes.length - 1; i++) {
-    testJsonThrows("$name:$i", (sink) {
-      sink.add(codes.sublist(0, i));
-      sink.add(codes.sublist(i));
-      sink.close();
-    });
-    testJsonThrows("$name:$i-slice", (sink) {
-      sink.addSlice(codes, 0, i, false);
-      sink.addSlice(codes, i, codes.length, true);
-    });
-    for (int j = i; j < codes.length - 1; j++) {
-      testJsonThrows("$name:$i|$j", (sink) {
-        sink.add(codes.sublist(0, i));
-        sink.add(codes.sublist(i, j));
-        sink.add(codes.sublist(j));
-        sink.close();
-      });
-    }
-  }
-}
-
-// Malformed UTF-8 encodings.
-void testMalformed() {
-  // Overlong encodings.
-  jsonMalformedTest(
-      "overlong-0-2", "@\uFFFD\uFFFD@", [0x22, 0x40, 0xc0, 0x80, 0x40, 0x22]);
-  jsonMalformedTest("overlong-0-3", "@\uFFFD\uFFFD\uFFFD@",
-      [0x22, 0x40, 0xe0, 0x80, 0x80, 0x40, 0x22]);
-  jsonMalformedTest("overlong-0-4", "@\uFFFD\uFFFD\uFFFD\uFFFD@",
-      [0x22, 0x40, 0xf0, 0x80, 0x80, 0x80, 0x40, 0x22]);
-
-  jsonMalformedTest(
-      "overlong-7f-2", "@\uFFFD\uFFFD@", [0x22, 0x40, 0xc1, 0xbf, 0x40, 0x22]);
-  jsonMalformedTest("overlong-7f-3", "@\uFFFD\uFFFD\uFFFD@",
-      [0x22, 0x40, 0xe0, 0x81, 0xbf, 0x40, 0x22]);
-  jsonMalformedTest("overlong-7f-4", "@\uFFFD\uFFFD\uFFFD\uFFFD@",
-      [0x22, 0x40, 0xf0, 0x80, 0x81, 0xbf, 0x40, 0x22]);
-
-  jsonMalformedTest("overlong-80-3", "@\uFFFD\uFFFD\uFFFD@",
-      [0x22, 0x40, 0xe0, 0x82, 0x80, 0x40, 0x22]);
-  jsonMalformedTest("overlong-80-4", "@\uFFFD\uFFFD\uFFFD\uFFFD@",
-      [0x22, 0x40, 0xf0, 0x80, 0x82, 0x80, 0x40, 0x22]);
-
-  jsonMalformedTest("overlong-7ff-3", "@\uFFFD\uFFFD\uFFFD@",
-      [0x22, 0x40, 0xe0, 0x9f, 0xbf, 0x40, 0x22]);
-  jsonMalformedTest("overlong-7ff-4", "@\uFFFD\uFFFD\uFFFD\uFFFD@",
-      [0x22, 0x40, 0xf0, 0x80, 0x9f, 0xbf, 0x40, 0x22]);
-
-  jsonMalformedTest("overlong-800-4", "@\uFFFD\uFFFD\uFFFD\uFFFD@",
-      [0x22, 0x40, 0xf0, 0x80, 0xa0, 0x80, 0x40, 0x22]);
-  jsonMalformedTest("overlong-ffff-4", "@\uFFFD\uFFFD\uFFFD\uFFFD@",
-      [0x22, 0x40, 0xf0, 0x8f, 0xbf, 0xbf, 0x40, 0x22]);
-
-  // Unterminated multibyte sequences.
-  jsonMalformedTest(
-      "unterminated-2-normal", "@\uFFFD@", [0x22, 0x40, 0xc0, 0x40, 0x22]);
-
-  jsonMalformedTest("unterminated-3-normal", "@\uFFFD\uFFFD@",
-      [0x22, 0x40, 0xe0, 0x80, 0x40, 0x22]);
-
-  jsonMalformedTest("unterminated-4-normal", "@\uFFFD\uFFFD\uFFFD@",
-      [0x22, 0x40, 0xf0, 0x80, 0x80, 0x40, 0x22]);
-
-  jsonMalformedTest("unterminated-2-multi", "@\uFFFD\x80@",
-      [0x22, 0x40, 0xc0, 0xc2, 0x80, 0x40, 0x22]);
-
-  jsonMalformedTest("unterminated-3-multi", "@\uFFFD\uFFFD\x80@",
-      [0x22, 0x40, 0xe0, 0x80, 0xc2, 0x80, 0x40, 0x22]);
-
-  jsonMalformedTest("unterminated-4-multi", "@\uFFFD\uFFFD\uFFFD\x80@",
-      [0x22, 0x40, 0xf0, 0x80, 0x80, 0xc2, 0x80, 0x40, 0x22]);
-
-  jsonMalformedTest("unterminated-2-escape", "@\uFFFD\n@",
-      [0x22, 0x40, 0xc0, 0x5c, 0x6e, 0x40, 0x22]);
-
-  jsonMalformedTest("unterminated-3-escape", "@\uFFFD\uFFFD\n@",
-      [0x22, 0x40, 0xe0, 0x80, 0x5c, 0x6e, 0x40, 0x22]);
-
-  jsonMalformedTest("unterminated-4-escape", "@\uFFFD\uFFFD\uFFFD\n@",
-      [0x22, 0x40, 0xf0, 0x80, 0x80, 0x5c, 0x6e, 0x40, 0x22]);
-
-  jsonMalformedTest("unterminated-2-end", "@\uFFFD", [0x22, 0x40, 0xc0, 0x22]);
-
-  jsonMalformedTest(
-      "unterminated-3-end", "@\uFFFD\uFFFD", [0x22, 0x40, 0xe0, 0x80, 0x22]);
-
-  jsonMalformedTest("unterminated-4-end", "@\uFFFD\uFFFD\uFFFD",
-      [0x22, 0x40, 0xf0, 0x80, 0x80, 0x22]);
-
-  // Unexpected continuation byte
-  // - after a normal character.
-  jsonMalformedTest(
-      "continuation-normal", "@\uFFFD@", [0x22, 0x40, 0x80, 0x40, 0x22]);
-
-  // - after a valid continuation byte.
-  jsonMalformedTest("continuation-continuation-2", "@\x80\uFFFD@",
-      [0x22, 0x40, 0xc2, 0x80, 0x80, 0x40, 0x22]);
-  jsonMalformedTest("continuation-continuation-3", "@\u0800\uFFFD@",
-      [0x22, 0x40, 0xe0, 0xa0, 0x80, 0x80, 0x40, 0x22]);
-  jsonMalformedTest("continuation-continuation-4", "@\u{10000}\uFFFD@",
-      [0x22, 0x40, 0xf0, 0x90, 0x80, 0x80, 0x80, 0x40, 0x22]);
-
-  // - after another invalid continuation byte
-  jsonMalformedTest("continuation-twice", "@\uFFFD\uFFFD\uFFFD@",
-      [0x22, 0x40, 0x80, 0x80, 0x80, 0x40, 0x22]);
-  // - at start.
-  jsonMalformedTest("continuation-start", "\uFFFD@", [0x22, 0x80, 0x40, 0x22]);
-
-  // Unexpected leading byte where continuation byte expected.
-  jsonMalformedTest(
-      "leading-2", "@\uFFFD\x80@", [0x22, 0x40, 0xc0, 0xc2, 0x80, 0x40, 0x22]);
-  jsonMalformedTest("leading-3-1", "@\uFFFD\x80@",
-      [0x22, 0x40, 0xe0, 0xc2, 0x80, 0x40, 0x22]);
-  jsonMalformedTest("leading-3-2", "@\uFFFD\uFFFD\x80@",
-      [0x22, 0x40, 0xe0, 0x80, 0xc2, 0x80, 0x40, 0x22]);
-  jsonMalformedTest("leading-4-1", "@\uFFFD\x80@",
-      [0x22, 0x40, 0xf0, 0xc2, 0x80, 0x40, 0x22]);
-  jsonMalformedTest("leading-4-2", "@\uFFFD\uFFFD\x80@",
-      [0x22, 0x40, 0xf0, 0x80, 0xc2, 0x80, 0x40, 0x22]);
-  jsonMalformedTest("leading-4-3", "@\uFFFD\uFFFD\uFFFD\x80@",
-      [0x22, 0x40, 0xf0, 0x80, 0x80, 0xc2, 0x80, 0x40, 0x22]);
-
-  // Overlong encodings of ASCII outside of strings always fail.
-  // Use Latin-1 strings as argument since most chars are correct,
-  // pass string.codeUnits to decoder as UTF-8.
-  jsonThrows("number-1", "\xc0\xab0.0e-0"); // '-' is 0x2b => \xc0\xab
-  jsonThrows("number-2", "-\xc0\xb0.0e-0"); // '0' is 0x30 => \xc0\xb0
-  jsonThrows("number-3", "-0\xc0\xae0e-0"); // '.' is 0x2e => \xc0\xae
-  jsonThrows("number-4", "-0.\xc0\xb0e-0");
-  jsonThrows("number-5", "-0.0\xc1\xa5-0"); // 'e' is 0x65 => \xc1\xa5
-  jsonThrows("number-6", "-0.0e\xc0\xab0");
-  jsonThrows("number-7", "-0.0e-\xc0\xb0");
-
-  jsonThrows("true-1", "\xc1\xb4rue"); // 't' is 0x74
-  jsonThrows("true-2", "t\xc1\xb2ue"); // 'r' is 0x72
-  jsonThrows("true-3", "tr\xc1\xb5e"); // 'u' is 0x75
-  jsonThrows("true-4", "tru\xc1\xa5"); // 'e' is 0x65
-
-  jsonThrows("false-1", "\xc1\xa6alse"); // 'f' is 0x66
-  jsonThrows("false-2", "f\xc1\xa1lse"); // 'a' is 0x61
-  jsonThrows("false-3", "fa\xc1\xacse"); // 'l' is 0x6c
-  jsonThrows("false-4", "fal\xc1\xb3e"); // 's' is 0x73
-  jsonThrows("false-5", "fals\xc1\xa5"); // 'e' is 0x65
-
-  jsonThrows("null-1", "\xc1\xaeull"); // 'n' is 0x6e
-  jsonThrows("null-2", "n\xc1\xb5ll"); // 'u' is 0x75
-  jsonThrows("null-3", "nu\xc1\xacl"); // 'l' is 0x6c
-  jsonThrows("null-4", "nul\xc1\xac"); // 'l' is 0x6c
-
-  jsonThrows("array-1", "\xc1\x9b0,0]"); // '[' is 0x5b
-  jsonThrows("array-2", "[0,0\xc1\x9d"); // ']' is 0x5d
-  jsonThrows("array-2", "[0\xc0\xac0]"); // ',' is 0x2c
-
-  jsonThrows("object-1", '\xc1\xbb"x":0}'); // '{' is 0x7b
-  jsonThrows("object-2", '{"x":0\xc1\xbd'); // '}' is 0x7d
-  jsonThrows("object-2", '{"x\xc0\xba0}'); // ':' is 0x3a
-
-  jsonThrows("string-1", '\xc0\xa2x"'); // '"' is 0x22
-  jsonThrows("string-1", '"x\xc0\xa2'); // Unterminated string.
-
-  jsonThrows("whitespace-1", "\xc0\xa01"); // ' ' is 0x20
-}
-
-void testUnicodeTests() {
-  for (var pair in UNICODE_TESTS) {
-    var bytes = pair[0];
-    var string = pair[1];
-    int step = 1;
-    if (bytes.length > 100) step = bytes.length ~/ 13;
-    for (int i = 1; i < bytes.length - 1; i += step) {
-      jsonTest("$string:$i", string, (sink) {
-        sink.add([0x22]); // Double-quote.
-        sink.add(bytes.sublist(0, i));
-        sink.add(bytes.sublist(i));
-        sink.add([0x22]);
-        sink.close();
-      });
-      jsonTest("$string:$i-slice", string, (sink) {
-        sink.addSlice([0x22], 0, 1, false);
-        sink.addSlice(bytes, 0, i, false);
-        sink.addSlice(bytes, i, bytes.length, false);
-        sink.addSlice([0x22], 0, 1, true);
-      });
-      int skip = 1;
-      if (bytes.length > 25) skip = bytes.length ~/ 17;
-      for (int j = i; j < bytes.length - 1; j += skip) {
-        jsonTest("$string:$i|$j", string, (sink) {
-          sink.add([0x22]);
-          sink.add(bytes.sublist(0, i));
-          sink.add(bytes.sublist(i, j));
-          sink.add(bytes.sublist(j));
-          sink.add([0x22]);
-          sink.close();
-        });
-      }
-    }
-  }
-}
diff --git a/tests/lib_2/convert/json_utf8_test.dart b/tests/lib_2/convert/json_utf8_test.dart
deleted file mode 100644
index f0afc40a5fe..00000000000
--- a/tests/lib_2/convert/json_utf8_test.dart
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that the fused UTF-8/JSON decoder accepts a leading BOM.
-library test;
-
-import "package:expect/expect.dart";
-import "dart:convert";
-
-void main() {
-  for (var parse in [parseFuse, parseSequence, parseChunked]) {
-    // Sanity checks.
-    Expect.isTrue(parse('true'.codeUnits.toList()));
-    Expect.isFalse(parse('false'.codeUnits.toList()));
-    Expect.equals(123, parse('123'.codeUnits.toList()));
-    Expect.listEquals([42], parse('[42]'.codeUnits.toList()));
-    Expect.mapEquals({"x": 42}, parse('{"x":42}'.codeUnits.toList()));
-
-    // String (0x22 = ") with UTF-8 encoded Unicode characters.
-    Expect.equals(
-        "A\xff\u1234\u{65555}",
-        parse([
-          0x22,
-          0x41,
-          0xc3,
-          0xbf,
-          0xe1,
-          0x88,
-          0xb4,
-          0xf1,
-          0xa5,
-          0x95,
-          0x95,
-          0x22
-        ]));
-
-    // BOM followed by true.
-    Expect.isTrue(parse([0xEF, 0xBB, 0xBF, 0x74, 0x72, 0x75, 0x65]));
-  }
-
-  // Do not accept BOM in non-UTF-8 decoder.
-  Expect.throws<FormatException>(
-      () => new JsonDecoder().convert("\xEF\xBB\xBFtrue"));
-  Expect.throws<FormatException>(() => new JsonDecoder().convert("\uFEFFtrue"));
-
-  // Only accept BOM first.
-  Expect.throws<FormatException>(
-      () => parseFuse(" \xEF\xBB\xBFtrue".codeUnits.toList()));
-  // Only accept BOM first.
-  Expect.throws<FormatException>(
-      () => parseFuse(" true\xEF\xBB\xBF".codeUnits.toList()));
-
-  Expect.throws<FormatException>(
-      () => parseFuse(" [\xEF\xBB\xBF]".codeUnits.toList()));
-}
-
-Object parseFuse(List<int> text) {
-  return new Utf8Decoder().fuse(new JsonDecoder()).convert(text);
-}
-
-Object parseSequence(List<int> text) {
-  return new JsonDecoder().convert(new Utf8Decoder().convert(text));
-}
-
-Object parseChunked(List<int> text) {
-  var result;
-  var sink = new Utf8Decoder().fuse(new JsonDecoder()).startChunkedConversion(
-      new ChunkedConversionSink.withCallback((List<Object> values) {
-    result = values[0];
-  }));
-  for (var i = 0; i < text.length; i++) {
-    sink.add([text[i]]);
-  }
-  sink.close();
-  return result;
-}
diff --git a/tests/lib_2/convert/json_util_test.dart b/tests/lib_2/convert/json_util_test.dart
deleted file mode 100644
index 4c5b212d121..00000000000
--- a/tests/lib_2/convert/json_util_test.dart
+++ /dev/null
@@ -1,180 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library jsonTest;
-
-import "package:expect/expect.dart";
-import 'dart:convert';
-
-main() {
-  testEscaping();
-  testParse();
-  testParseInvalid();
-}
-
-void testParse() {
-  // Scalars.
-  Expect.equals(5, json.decode(' 5 '));
-  Expect.equals(-42, json.decode(' -42 '));
-  Expect.equals(3, json.decode(' 3e0 '));
-  Expect.equals(3.14, json.decode(' 3.14 '));
-  Expect.equals(1.0E-06, json.decode(' 1.0E-06 '));
-  Expect.equals(0, json.decode("0"));
-  Expect.equals(1, json.decode("1"));
-  Expect.equals(0.1, json.decode("0.1"));
-  Expect.equals(1.1, json.decode("1.1"));
-  Expect.equals(1.1, json.decode("1.100000"));
-  Expect.equals(1.111111, json.decode("1.111111"));
-  Expect.equals(-0, json.decode("-0"));
-  Expect.equals(-1, json.decode("-1"));
-  Expect.equals(-0.1, json.decode("-0.1"));
-  Expect.equals(-1.1, json.decode("-1.1"));
-  Expect.equals(-1.1, json.decode("-1.100000"));
-  Expect.equals(-1.111111, json.decode("-1.111111"));
-  Expect.equals(11, json.decode("1.1e1"));
-  Expect.equals(11, json.decode("1.1e+1"));
-  Expect.equals(0.11, json.decode("1.1e-1"));
-  Expect.equals(11, json.decode("1.1E1"));
-  Expect.equals(11, json.decode("1.1E+1"));
-  Expect.equals(0.11, json.decode("1.1E-1"));
-  Expect.equals(1E0, json.decode(" 1E0"));
-  Expect.equals(1E+0, json.decode(" 1E+0"));
-  Expect.equals(1E-0, json.decode(" 1E-0"));
-  Expect.equals(1E00, json.decode(" 1E00"));
-  Expect.equals(1E+00, json.decode(" 1E+00"));
-  Expect.equals(1E-00, json.decode(" 1E-00"));
-  Expect.equals(1E+10, json.decode(" 1E+10"));
-  Expect.equals(1E+010, json.decode(" 1E+010"));
-  Expect.equals(1E+0010, json.decode(" 1E+0010"));
-  Expect.equals(1E10, json.decode(" 1E10"));
-  Expect.equals(1E010, json.decode(" 1E010"));
-  Expect.equals(1E0010, json.decode(" 1E0010"));
-  Expect.equals(1E-10, json.decode(" 1E-10"));
-  Expect.equals(1E-0010, json.decode(" 1E-0010"));
-  Expect.equals(1E0, json.decode(" 1e0"));
-  Expect.equals(1E+0, json.decode(" 1e+0"));
-  Expect.equals(1E-0, json.decode(" 1e-0"));
-  Expect.equals(1E00, json.decode(" 1e00"));
-  Expect.equals(1E+00, json.decode(" 1e+00"));
-  Expect.equals(1E-00, json.decode(" 1e-00"));
-  Expect.equals(1E+10, json.decode(" 1e+10"));
-  Expect.equals(1E+010, json.decode(" 1e+010"));
-  Expect.equals(1E+0010, json.decode(" 1e+0010"));
-  Expect.equals(1E10, json.decode(" 1e10"));
-  Expect.equals(1E010, json.decode(" 1e010"));
-  Expect.equals(1E0010, json.decode(" 1e0010"));
-  Expect.equals(1E-10, json.decode(" 1e-10"));
-  Expect.equals(1E-0010, json.decode(" 1e-0010"));
-  Expect.equals(true, json.decode(' true '));
-  Expect.equals(false, json.decode(' false'));
-  Expect.equals(null, json.decode(' null '));
-  Expect.equals(null, json.decode('\n\rnull\t'));
-  Expect.equals('hi there" bob', json.decode(' "hi there\\" bob" '));
-  Expect.equals('', json.decode(' "" '));
-
-  // Lists.
-  Expect.listEquals([], json.decode(' [] '));
-  Expect.listEquals(["entry"], json.decode(' ["entry"] '));
-  Expect.listEquals([true, false], json.decode(' [true, false] '));
-  Expect.listEquals([1, 2, 3], json.decode(' [ 1 , 2 , 3 ] '));
-
-  // Maps.
-  Expect.mapEquals({}, json.decode(' {} '));
-  Expect.mapEquals({"key": "value"}, json.decode(' {"key": "value" } '));
-  Expect.mapEquals(
-      {"key1": 1, "key2": 2}, json.decode(' {"key1": 1, "key2": 2} '));
-  Expect.mapEquals({"key1": 1}, json.decode(' { "key1" : 1 } '));
-}
-
-void testParseInvalid() {
-  void testString(String s) {
-    Expect.throwsFormatException(() => json.decode(s));
-  }
-
-  // Scalars
-  testString("");
-  testString("-");
-  testString("-.");
-  testString("3.a");
-  testString("{ key: value }");
-  testString("tru");
-  testString("1E--6");
-  testString("1E-+6");
-  testString("1E+-6");
-  testString("1E++6");
-  testString("1E6.6");
-  testString("1E-6.6");
-  testString("1E+6.6");
-
-  // JavaScript number literals not valid in JSON.
-  testString('[01]');
-  testString('[.1]');
-  testString('[1.]');
-  testString('[1.e1]');
-  testString('[-.1]');
-  testString('[-1.]');
-
-  // Plain invalid number literals.
-  testString('-');
-  testString('--1');
-  testString('-1e');
-  testString('1e--1]');
-  testString('1e+-1');
-  testString('1e-+1');
-  testString('1e++1');
-
-  // Lists
-  testString('[, ]');
-  testString('["", ]');
-  testString('["", "]');
-  testString('["" ""]');
-
-  // Maps
-  testString('{"" ""}');
-  testString('{"": "",}');
-}
-
-void testEscaping() {
-  Expect.stringEquals('""', json.encode(''));
-  Expect.stringEquals('"\\u0000"', json.encode('\u0000'));
-  Expect.stringEquals('"\\u0001"', json.encode('\u0001'));
-  Expect.stringEquals('"\\u0002"', json.encode('\u0002'));
-  Expect.stringEquals('"\\u0003"', json.encode('\u0003'));
-  Expect.stringEquals('"\\u0004"', json.encode('\u0004'));
-  Expect.stringEquals('"\\u0005"', json.encode('\u0005'));
-  Expect.stringEquals('"\\u0006"', json.encode('\u0006'));
-  Expect.stringEquals('"\\u0007"', json.encode('\u0007'));
-  Expect.stringEquals('"\\b"', json.encode('\u0008'));
-  Expect.stringEquals('"\\t"', json.encode('\u0009'));
-  Expect.stringEquals('"\\n"', json.encode('\u000a'));
-  Expect.stringEquals('"\\u000b"', json.encode('\u000b'));
-  Expect.stringEquals('"\\f"', json.encode('\u000c'));
-  Expect.stringEquals('"\\r"', json.encode('\u000d'));
-  Expect.stringEquals('"\\u000e"', json.encode('\u000e'));
-  Expect.stringEquals('"\\u000f"', json.encode('\u000f'));
-  Expect.stringEquals('"\\u0010"', json.encode('\u0010'));
-  Expect.stringEquals('"\\u0011"', json.encode('\u0011'));
-  Expect.stringEquals('"\\u0012"', json.encode('\u0012'));
-  Expect.stringEquals('"\\u0013"', json.encode('\u0013'));
-  Expect.stringEquals('"\\u0014"', json.encode('\u0014'));
-  Expect.stringEquals('"\\u0015"', json.encode('\u0015'));
-  Expect.stringEquals('"\\u0016"', json.encode('\u0016'));
-  Expect.stringEquals('"\\u0017"', json.encode('\u0017'));
-  Expect.stringEquals('"\\u0018"', json.encode('\u0018'));
-  Expect.stringEquals('"\\u0019"', json.encode('\u0019'));
-  Expect.stringEquals('"\\u001a"', json.encode('\u001a'));
-  Expect.stringEquals('"\\u001b"', json.encode('\u001b'));
-  Expect.stringEquals('"\\u001c"', json.encode('\u001c'));
-  Expect.stringEquals('"\\u001d"', json.encode('\u001d'));
-  Expect.stringEquals('"\\u001e"', json.encode('\u001e'));
-  Expect.stringEquals('"\\u001f"', json.encode('\u001f'));
-  Expect.stringEquals('"\\\""', json.encode('"'));
-  Expect.stringEquals('"\\\\"', json.encode('\\'));
-  Expect.stringEquals('"Got \\b, \\f, \\n, \\r, \\t, \\u0000, \\\\, and \\"."',
-      json.encode('Got \b, \f, \n, \r, \t, \u0000, \\, and ".'));
-  Expect.stringEquals('"Got \\b\\f\\n\\r\\t\\u0000\\\\\\"."',
-      json.encode('Got \b\f\n\r\t\u0000\\".'));
-}
diff --git a/tests/lib_2/convert/latin1_test.dart b/tests/lib_2/convert/latin1_test.dart
deleted file mode 100644
index 4e1355d0581..00000000000
--- a/tests/lib_2/convert/latin1_test.dart
+++ /dev/null
@@ -1,179 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:convert';
-
-var latin1Strings = ["pure ascii", "blåbærgrød", "\x00 edge cases \xff"];
-
-var nonLatin1Strings = ["Edge case \u{100}", "Edge case super-BMP \u{10000}"];
-
-void main() {
-  // Build longer versions of the example strings.
-  for (int i = 0, n = latin1Strings.length; i < n; i++) {
-    var string = latin1Strings[i];
-    while (string.length < 1024) {
-      string += string;
-    }
-    latin1Strings.add(string);
-  }
-  for (int i = 0, n = nonLatin1Strings.length; i < n; i++) {
-    var string = nonLatin1Strings[i];
-    while (string.length < 1024) {
-      string += string;
-    }
-    nonLatin1Strings.add(string);
-  }
-  testDirectConversions();
-  testChunkedConversions();
-}
-
-void testDirectConversions() {
-  for (var codec in [latin1, new Latin1Codec()]) {
-    for (var latin1String in latin1Strings) {
-      List bytes = codec.encoder.convert(latin1String);
-      Expect.listEquals(latin1String.codeUnits.toList(), bytes, latin1String);
-      String roundTripString = codec.decoder.convert(bytes);
-      Expect.equals(latin1String, roundTripString);
-      roundTripString = codec.decode(bytes);
-      Expect.equals(latin1String, roundTripString);
-    }
-
-    for (var nonLatin1String in nonLatin1Strings) {
-      Expect.throws(() {
-        print(codec.encoder.convert(nonLatin1String));
-      }, null, nonLatin1String);
-    }
-
-    var encode = codec.encoder.convert;
-    Expect.listEquals([0x42, 0xff, 0x44], encode("AB\xffDE", 1, 4));
-    Expect.listEquals([0x42, 0xff, 0x44, 0x45], encode("AB\xffDE", 1));
-    Expect.listEquals([0x42, 0xff, 0x44], encode("\u3000B\xffD\u3000", 1, 4));
-    Expect.throws(() {
-      encode("\u3000B\xffD\u3000", 0, 4);
-    });
-    Expect.throws(() {
-      encode("\u3000B\xffD\u3000", 1);
-    });
-    Expect.throws(() {
-      encode("\u3000B\xffD\u3000", 1, 5);
-    });
-    Expect.throws(() {
-      encode("\u3000B\xffD\u3000", -1, 4);
-    });
-    Expect.throws(() {
-      encode("\u3000B\xffD\u3000", 1, -1);
-    });
-    Expect.throws(() {
-      encode("\u3000B\xffD\u3000", 3, 2);
-    });
-
-    var decode = codec.decoder.convert;
-    Expect.equals("B\xffD", decode([0x41, 0x42, 0xff, 0x44, 0x45], 1, 4));
-    Expect.equals("B\xffDE", decode([0x41, 0x42, 0xff, 0x44, 0x45], 1));
-    Expect.equals("B\xffD", decode([0xFF, 0x42, 0xff, 0x44, 0xFF], 1, 4));
-    Expect.throws(() {
-      decode([0x3000, 0x42, 0xff, 0x44, 0x3000], 0, 4);
-    });
-    Expect.throws(() {
-      decode([0x3000, 0x42, 0xff, 0x44, 0x3000], 1);
-    });
-    Expect.throws(() {
-      decode([0x3000, 0x42, 0xff, 0x44, 0x3000], 1, 5);
-    });
-    Expect.throws(() {
-      decode([0x3000, 0x42, 0xff, 0x44, 0x3000], -1, 4);
-    });
-    Expect.throws(() {
-      decode([0x3000, 0x42, 0xff, 0x44, 0x3000], 1, -1);
-    });
-    Expect.throws(() {
-      decode([0x3000, 0x42, 0xff, 0x44, 0x3000], 3, 2);
-    });
-  }
-
-  var allowInvalidCodec = new Latin1Codec(allowInvalid: true);
-  var invalidBytes = [0, 1, 0xff, 0xdead, 0];
-  String decoded = allowInvalidCodec.decode(invalidBytes);
-  Expect.equals("\x00\x01\xFF\uFFFD\x00", decoded);
-  decoded = allowInvalidCodec.decoder.convert(invalidBytes);
-  Expect.equals("\x00\x01\xFF\uFFFD\x00", decoded);
-  decoded = latin1.decode(invalidBytes, allowInvalid: true);
-  Expect.equals("\x00\x01\xFF\uFFFD\x00", decoded);
-}
-
-List<int> encode(
-    String str, int chunkSize, Converter<String, List<int>> converter) {
-  List<int> bytes = <int>[];
-  var byteSink = new ByteConversionSink.withCallback(bytes.addAll);
-  var stringConversionSink = converter.startChunkedConversion(byteSink);
-  for (int i = 0; i < str.length; i += chunkSize) {
-    if (i + chunkSize <= str.length) {
-      stringConversionSink.add(str.substring(i, i + chunkSize));
-    } else {
-      stringConversionSink.add(str.substring(i));
-    }
-  }
-  stringConversionSink.close();
-  return bytes;
-}
-
-String decode(
-    List<int> bytes, int chunkSize, Converter<List<int>, String> converter) {
-  StringBuffer buf = new StringBuffer();
-  var stringSink = new StringConversionSink.fromStringSink(buf);
-  var byteConversionSink = converter.startChunkedConversion(stringSink);
-  for (int i = 0; i < bytes.length; i += chunkSize) {
-    if (i + chunkSize <= bytes.length) {
-      byteConversionSink.add(bytes.sublist(i, i + chunkSize));
-    } else {
-      byteConversionSink.add(bytes.sublist(i));
-    }
-  }
-  byteConversionSink.close();
-  return buf.toString();
-}
-
-void testChunkedConversions() {
-  // Check encoding.
-  for (var converter in [
-    latin1.encoder,
-    new Latin1Codec().encoder,
-    new Latin1Encoder()
-  ]) {
-    for (int chunkSize in [1, 2, 5, 50]) {
-      for (var latin1String in latin1Strings) {
-        var units = latin1String.codeUnits.toList();
-        List bytes = encode(latin1String, chunkSize, converter);
-        Expect.listEquals(units, bytes);
-      }
-      for (var nonLatin1String in nonLatin1Strings) {
-        Expect.throws(() {
-          encode(nonLatin1String, chunkSize, converter);
-        });
-      }
-    }
-  }
-  // Check decoding.
-  for (var converter in [
-    latin1.decoder,
-    new Latin1Codec().decoder,
-    new Latin1Decoder()
-  ]) {
-    for (int chunkSize in [1, 2, 5, 50]) {
-      for (var latin1String in latin1Strings) {
-        var units = latin1String.codeUnits.toList();
-        Expect.equals(latin1String, decode(units, chunkSize, converter));
-      }
-      for (var nonLatin1String in nonLatin1Strings) {
-        var units = nonLatin1String.codeUnits.toList();
-        Expect.throws(() {
-          decode(units, chunkSize, converter);
-        });
-      }
-    }
-  }
-}
diff --git a/tests/lib_2/convert/line_splitter_performance_test.dart b/tests/lib_2/convert/line_splitter_performance_test.dart
deleted file mode 100644
index 836ddc08e3e..00000000000
--- a/tests/lib_2/convert/line_splitter_performance_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library line_splitter_test;
-
-import 'dart:convert';
-
-import "package:expect/expect.dart";
-
-void main() {
-  testEfficency();
-}
-
-/// Regression test for https://dartbug.com/51167
-///
-/// Had quadratic time behavior when concatenating chunks without linebreaks.
-///
-/// Should now only use linear time/space for buffering.
-void testEfficency() {
-  // After fix: finishes in < 1 second on desktop.
-  // Before fix, with N = 100000, took 25 seconds.
-  const N = 1000000;
-  String result = ""; // Starts empty, set once.
-  var sink = LineSplitter()
-      .startChunkedConversion(ChunkedConversionSink.withCallback((lines) {
-    Expect.equals("", result);
-    Expect.equals(1, lines.length);
-    var line = lines.first;
-    Expect.notEquals("", line);
-    result = line;
-  }));
-  for (var i = 0; i < N; i++) {
-    sink.add("xy");
-  }
-  sink.close();
-  Expect.equals("xy" * N, result);
-}
diff --git a/tests/lib_2/convert/line_splitter_test.dart b/tests/lib_2/convert/line_splitter_test.dart
deleted file mode 100644
index f5e1c633a2e..00000000000
--- a/tests/lib_2/convert/line_splitter_test.dart
+++ /dev/null
@@ -1,292 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library line_splitter_test;
-
-import 'dart:async';
-import 'dart:convert';
-import 'dart:math';
-
-import "package:expect/expect.dart";
-
-const lineTerminators = const ['\n', '\r', '\r\n'];
-
-void main() {
-  testSimpleConvert();
-  testSplit();
-  testSplitWithOffsets();
-  testManyLines();
-  testReadLine1();
-  testReadLine2();
-  testChunkedConversion();
-  testCarry();
-}
-
-void testManyLines() {
-  int breakIndex = 0;
-
-  var inputs = const ['line1', 'line2', 'long line 3', ' line 4 ', 'l5'];
-
-  var buffer = inputs.fold(new StringBuffer(), (buff, e) {
-    buff.write(e);
-    buff.write(lineTerminators[breakIndex]);
-
-    breakIndex++;
-    breakIndex = breakIndex % lineTerminators.length;
-
-    return buff;
-  });
-
-  var foo = _getLinesSliced(buffer.toString());
-  Expect.equals(inputs.join(), foo);
-}
-
-String _getLinesSliced(String str) {
-  String lines;
-  var stringSink =
-      new StringConversionSink.withCallback((result) => lines = result);
-  var sink = new LineSplitter().startChunkedConversion(stringSink);
-
-  const chunkSize = 3;
-  var index = 0;
-  while (index < str.length) {
-    var end = min(str.length, index + chunkSize);
-
-    sink.addSlice(str, index, end, false);
-    index += chunkSize;
-  }
-
-  sink.close();
-  return lines;
-}
-
-void testSimpleConvert() {
-  var decoder = new LineSplitter();
-  for (var lf in lineTerminators) {
-    var test = "line1${lf}line2${lf}line3";
-
-    var result = decoder.convert(test);
-
-    Expect.listEquals(['line1', 'line2', 'line3'], result);
-  }
-
-  var test = "Line1\nLine2\r\nLine3\rLine4\n\n\n\r\n\r\n\r\r";
-  var result = decoder.convert(test);
-
-  Expect.listEquals(
-      ['Line1', 'Line2', 'Line3', 'Line4', '', '', '', '', '', ''], result);
-}
-
-void testReadLine1() {
-  var controller = new StreamController<List<int>>(sync: true);
-  var stream =
-      controller.stream.transform(utf8.decoder).transform(const LineSplitter());
-
-  var stage = 0;
-  var done = false;
-
-  void stringData(line) {
-    Expect.equals(stage, 0);
-    Expect.equals("Line", line);
-    stage++;
-  }
-
-  void streamClosed() {
-    Expect.equals(1, stage);
-    done = true;
-  }
-
-  stream.listen(stringData, onDone: streamClosed);
-
-  // Note: codeUnits is fine. Text is ASCII.
-  controller.add("Line".codeUnits);
-  controller.close();
-  Expect.isTrue(done, 'should be done by now');
-}
-
-void testReadLine2() {
-  var controller = new StreamController<List<int>>(sync: true);
-
-  var stream =
-      controller.stream.transform(utf8.decoder).transform(const LineSplitter());
-
-  var expectedLines = [
-    'Line1',
-    'Line2',
-    'Line3',
-    'Line4',
-    '',
-    '',
-    '',
-    '',
-    '',
-    '',
-    'Line5',
-    'Line6'
-  ];
-
-  var index = 0;
-
-  stream.listen((line) {
-    Expect.equals(expectedLines[index++], line);
-  });
-
-  // Note: codeUnits is fine. Text is ASCII.
-  controller.add("Line1\nLine2\r\nLine3\rLi".codeUnits);
-  controller.add("ne4\n".codeUnits);
-  controller.add("\n\n\r\n\r\n\r\r".codeUnits);
-  controller.add("Line5\r".codeUnits);
-  controller.add("\nLine6\n".codeUnits);
-  controller.close();
-  Expect.equals(expectedLines.length, index);
-}
-
-void testSplit() {
-  for (var lf in lineTerminators) {
-    var test = "line1${lf}line2${lf}line3";
-    var result = LineSplitter.split(test).toList();
-    Expect.listEquals(['line1', 'line2', 'line3'], result);
-  }
-
-  var test = "Line1\nLine2\r\nLine3\rLine4\n\n\n\r\n\r\n\r\r";
-  var result = LineSplitter.split(test).toList();
-
-  Expect.listEquals(
-      ['Line1', 'Line2', 'Line3', 'Line4', '', '', '', '', '', ''], result);
-}
-
-void testSplitWithOffsets() {
-  for (var lf in lineTerminators) {
-    var test = "line1${lf}line2${lf}line3";
-    var i2 = 5 + lf.length; // index of "line2".
-    Expect.equals(5 + lf.length, i2);
-
-    var result = LineSplitter.split(test, 4).toList();
-    Expect.listEquals(['1', 'line2', 'line3'], result);
-
-    result = LineSplitter.split(test, 5).toList();
-    Expect.listEquals(['', 'line2', 'line3'], result);
-
-    result = LineSplitter.split(test, i2).toList();
-    Expect.listEquals(['line2', 'line3'], result);
-
-    result = LineSplitter.split(test, 0, i2 + 2).toList();
-    Expect.listEquals(['line1', 'li'], result);
-
-    result = LineSplitter.split(test, i2, i2 + 5).toList();
-    Expect.listEquals(['line2'], result);
-  }
-
-  var test = "Line1\nLine2\r\nLine3\rLine4\n\n\n\r\n\r\n\r\r";
-
-  var result = LineSplitter.split(test).toList();
-
-  Expect.listEquals(
-      ['Line1', 'Line2', 'Line3', 'Line4', '', '', '', '', '', ''], result);
-
-  test = "a\n\nb\r\nc\n\rd\r\re\r\n\nf\r\n";
-  result = LineSplitter.split(test).toList();
-  Expect.listEquals(["a", "", "b", "c", "", "d", "", "e", "", "f"], result);
-}
-
-void testChunkedConversion() {
-  // Test any split of this complex string.
-  var test = "a\n\nb\r\nc\n\rd\r\re\r\n\nf\rg\nh\r\n";
-  var result = ["a", "", "b", "c", "", "d", "", "e", "", "f", "g", "h"];
-  for (int i = 0; i < test.length; i++) {
-    var output = [];
-    var splitter = new LineSplitter();
-    var outSink = new ChunkedConversionSink<String>.withCallback(output.addAll);
-    var sink = splitter.startChunkedConversion(outSink);
-    sink.addSlice(test, 0, i, false);
-    sink.addSlice(test, i, test.length, false);
-    sink.close();
-    Expect.listEquals(result, output);
-  }
-
-  // Test the string split into three parts in any way.
-  for (int i = 0; i < test.length; i++) {
-    for (int j = i; j < test.length; j++) {
-      var output = [];
-      var splitter = new LineSplitter();
-      var outSink =
-          new ChunkedConversionSink<String>.withCallback(output.addAll);
-      var sink = splitter.startChunkedConversion(outSink);
-      sink.addSlice(test, 0, i, false);
-      sink.addSlice(test, i, j, false);
-      sink.addSlice(test, j, test.length, true);
-      Expect.listEquals(result, output);
-    }
-  }
-}
-
-void testCarry() {
-  // Test, when multiple chunks contribute to the same line,
-  // That the carry-over is combined correctly.
-
-  // Test multiple chunks of carry, ending in linefeeds or not.
-  {
-    var output = [];
-    var splitter = new LineSplitter();
-    var outSink = new ChunkedConversionSink<String>.withCallback(output.addAll);
-    var sink = splitter.startChunkedConversion(outSink);
-
-    sink.add("abcd");
-    sink.add("fghi");
-    sink.add("jklm");
-    sink.add("nopq\r"); // Multiple chunks in carry, ends in \r.
-    sink.add("\nrstu"); // Followed by \n.
-    sink.close();
-
-    Expect.listEquals(["abcdfghijklmnopq", "rstu"], output);
-  }
-
-  {
-    var output = [];
-    var splitter = new LineSplitter();
-    var outSink = new ChunkedConversionSink<String>.withCallback(output.addAll);
-    var sink = splitter.startChunkedConversion(outSink);
-
-    sink.add("abcd");
-    sink.add("fghi");
-    sink.add("jklm");
-    sink.add("nopq\r"); // Multiple chunks in carry, ends in \r.
-    sink.add("rstu"); // Not followed by \n.
-    sink.close();
-
-    Expect.listEquals(["abcdfghijklmnopq", "rstu"], output);
-  }
-
-  {
-    var output = [];
-    var splitter = new LineSplitter();
-    var outSink = new ChunkedConversionSink<String>.withCallback(output.addAll);
-    var sink = splitter.startChunkedConversion(outSink);
-
-    sink.add("abcd");
-    sink.add("fghi");
-    sink.add("jklm");
-    sink.add("nopq\r"); // Multiple chunks in carry, ends in \r.
-    sink.close(); // Not followed by anything.
-
-    Expect.listEquals(["abcdfghijklmnopq"], output);
-  }
-
-  {
-    var output = [];
-    var splitter = new LineSplitter();
-    var outSink = new ChunkedConversionSink<String>.withCallback(output.addAll);
-    var sink = splitter.startChunkedConversion(outSink);
-
-    sink.add("abcd");
-    sink.add("fghi");
-    sink.add("jklm");
-    sink.add("nopq"); // Multiple chunks in carry, no linebreak.
-    sink.close();
-
-    Expect.listEquals(["abcdfghijklmnopq"], output);
-  }
-}
diff --git a/tests/lib_2/convert/streamed_conversion_json_decode1_test.dart b/tests/lib_2/convert/streamed_conversion_json_decode1_test.dart
deleted file mode 100644
index 0647f441d05..00000000000
--- a/tests/lib_2/convert/streamed_conversion_json_decode1_test.dart
+++ /dev/null
@@ -1,131 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'dart:convert';
-import "package:async_helper/async_helper.dart";
-
-final TESTS = [
-  [5, '5'],
-  [-42, '-42'],
-  [3.14, '3.14'],
-  [true, 'true'],
-  [false, 'false'],
-  [null, 'null'],
-  ['quote"or\'', '"quote\\"or\'"'],
-  ['', '""'],
-  [[], "[]"],
-  [
-    [3, -4.5, true, "hi", false],
-    '[3,-4.5,true,"hi",false]'
-  ],
-  [
-    [null],
-    "[null]"
-  ],
-  [
-    [
-      [null]
-    ],
-    "[[null]]"
-  ],
-  [
-    [
-      [3]
-    ],
-    "[[3]]"
-  ],
-  [{}, "{}"],
-  [
-    {"x": 3, "y": 4.5, "z": "hi", "u": true, "v": false},
-    '{"x":3,"y":4.5,"z":"hi","u":true,"v":false}'
-  ],
-  [
-    {"x": null},
-    '{"x":null}'
-  ],
-  [
-    {"x": {}},
-    '{"x":{}}'
-  ],
-  // Note that -0.0 won't be treated the same in JS. The Json spec seems to
-  // allow it, though.
-  [
-    {"hi there": 499, "'": -0.0},
-    '{"hi there":499,"\'":-0.0}'
-  ],
-  [r'\foo', r'"\\foo"'],
-];
-
-bool isJsonEqual(o1, o2) {
-  if (o1 == o2) return true;
-  if (o1 is List && o2 is List) {
-    if (o1.length != o2.length) return false;
-    for (int i = 0; i < o1.length; i++) {
-      if (!isJsonEqual(o1[i], o2[i])) return false;
-    }
-    return true;
-  }
-  if (o1 is Map && o2 is Map) {
-    if (o1.length != o2.length) return false;
-    for (var key in o1.keys) {
-      Expect.isTrue(key is String);
-      if (!o2.containsKey(key)) return false;
-      if (!isJsonEqual(o1[key], o2[key])) return false;
-    }
-    return true;
-  }
-  return false;
-}
-
-Stream<Object> createStream(List<String> chunks) {
-  var decoder = new JsonDecoder(null);
-  var controller;
-  controller = new StreamController<String>(onListen: () {
-    chunks.forEach(controller.add);
-    controller.close();
-  });
-  return controller.stream.transform(decoder);
-}
-
-Stream<Object> decode(String str) {
-  return createStream([str]);
-}
-
-Stream<Object> decode2(String str) {
-  return createStream(str.split(""));
-}
-
-void checkIsJsonEqual(expected, stream) {
-  asyncStart();
-  stream.single.then((o) {
-    Expect.isTrue(isJsonEqual(expected, o));
-    asyncEnd();
-  });
-}
-
-void main() {
-  var tests = TESTS.expand((test) {
-    var object = test[0];
-    var string = test[1];
-    var longString = "                                                        "
-        "                                                        "
-        "$string"
-        "                                                        "
-        "                                                        ";
-    return [
-      test,
-      [object, longString]
-    ];
-  });
-  for (var test in tests) {
-    var o = test[0];
-    var string = test[1];
-    checkIsJsonEqual(o, decode(string));
-    checkIsJsonEqual(o, decode2(string));
-  }
-}
diff --git a/tests/lib_2/convert/streamed_conversion_json_encode1_test.dart b/tests/lib_2/convert/streamed_conversion_json_encode1_test.dart
deleted file mode 100644
index 2aa76a7f2f9..00000000000
--- a/tests/lib_2/convert/streamed_conversion_json_encode1_test.dart
+++ /dev/null
@@ -1,106 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'dart:convert';
-import "package:async_helper/async_helper.dart";
-
-final TESTS = [
-  [5, '5'],
-  [-42, '-42'],
-  [3.14, '3.14'],
-  [true, 'true'],
-  [false, 'false'],
-  [null, 'null'],
-  ['quote"or\'', '"quote\\"or\'"'],
-  ['', '""'],
-  [[], "[]"],
-  [
-    [3, -4.5, true, "hi", false],
-    '[3,-4.5,true,"hi",false]'
-  ],
-  [
-    [null],
-    "[null]"
-  ],
-  [
-    [
-      [null]
-    ],
-    "[[null]]"
-  ],
-  [
-    [
-      [3]
-    ],
-    "[[3]]"
-  ],
-  [{}, "{}"],
-  [
-    {"x": 3, "y": 4.5, "z": "hi", "u": true, "v": false},
-    '{"x":3,"y":4.5,"z":"hi","u":true,"v":false}'
-  ],
-  [
-    {"x": null},
-    '{"x":null}'
-  ],
-  [
-    {"x": {}},
-    '{"x":{}}'
-  ],
-  // Note that -0.0 won't be treated the same in JS. The Json spec seems to
-  // allow it, though.
-  [
-    {"hi there": 499, "'": -0.0},
-    '{"hi there":499,"\'":-0.0}'
-  ],
-  [r'\foo', r'"\\foo"'],
-];
-
-Stream<String> encode(Object o) {
-  var encoder = new JsonEncoder();
-  StreamController controller;
-  controller = new StreamController(onListen: () {
-    controller.add(o);
-    controller.close();
-  });
-  return controller.stream.transform(encoder);
-}
-
-void testNoPause(String expected, Object o) {
-  asyncStart();
-  Stream stream = encode(o);
-  stream.toList().then((list) {
-    StringBuffer buffer = new StringBuffer();
-    buffer.writeAll(list);
-    Expect.stringEquals(expected, buffer.toString());
-    asyncEnd();
-  });
-}
-
-void testWithPause(String expected, Object o) {
-  asyncStart();
-  Stream stream = encode(o);
-  StringBuffer buffer = new StringBuffer();
-  var sub;
-  sub = stream.listen((x) {
-    buffer.write(x);
-    sub.pause(new Future.delayed(Duration.zero));
-  }, onDone: () {
-    Expect.stringEquals(expected, buffer.toString());
-    asyncEnd();
-  });
-}
-
-void main() {
-  for (var test in TESTS) {
-    var o = test[0];
-    var expected = test[1];
-    testNoPause(expected, o);
-    testWithPause(expected, o);
-  }
-}
diff --git a/tests/lib_2/convert/streamed_conversion_json_utf8_decode_test.dart b/tests/lib_2/convert/streamed_conversion_json_utf8_decode_test.dart
deleted file mode 100644
index 19094bf247f..00000000000
--- a/tests/lib_2/convert/streamed_conversion_json_utf8_decode_test.dart
+++ /dev/null
@@ -1,89 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=
-// VMOptions=--verify_before_gc
-// VMOptions=--verify_after_gc
-// VMOptions=--verify_before_gc --verify_after_gc
-// VMOptions=--verify_store_buffer
-// VMOptions=--no_intrinsify
-
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'dart:convert';
-import 'json_unicode_tests.dart';
-import "package:async_helper/async_helper.dart";
-
-final jsonUtf8 = json.fuse<List<int>>(utf8);
-
-void expectJsonEquals(o1, o2, [path = "result"]) {
-  if (o1 == o2) return;
-  if (o1 is List && o2 is List) {
-    Expect.equals(o1.length, o2.length, "$path.length");
-    for (int i = 0; i < o1.length; i++) {
-      expectJsonEquals(o1[i], o2[i], "$path[$i]");
-    }
-    return;
-  }
-  if (o1 is Map && o2 is Map) {
-    Expect.equals(o1.length, o2.length, "$path.length");
-    for (var key in o1.keys) {
-      Expect.isTrue(key is String, "$path:key = $key");
-      Expect.isTrue(o2.containsKey(key), "$path[$key] missing in $o2");
-      expectJsonEquals(o1[key], o2[key], "$path[$key]");
-    }
-    return;
-  }
-  Expect.equals(o1, o2);
-}
-
-Stream<Object> createStream(List<List<int>> chunks) {
-  var controller;
-  controller = new StreamController<List<int>>(onListen: () {
-    chunks.forEach(controller.add);
-    controller.close();
-  });
-  return controller.stream.transform(jsonUtf8.decoder);
-}
-
-Stream<Object> decode(List<int> bytes) {
-  return createStream([bytes]);
-}
-
-Stream<Object> decodeChunked(List<int> bytes, int chunkSize) {
-  List<List<int>> chunked = <List<int>>[];
-  int i = 0;
-  while (i < bytes.length) {
-    if (i + chunkSize <= bytes.length) {
-      chunked.add(bytes.sublist(i, i + chunkSize));
-    } else {
-      chunked.add(bytes.sublist(i));
-    }
-    i += chunkSize;
-  }
-  return createStream(chunked);
-}
-
-void checkIsJsonEqual(expected, stream) {
-  asyncStart();
-  stream.single.then((o) {
-    expectJsonEquals(expected, o);
-    asyncEnd();
-  });
-}
-
-main() {
-  for (var test in JSON_UNICODE_TESTS) {
-    var bytes = test[0];
-    var o = test[1];
-    checkIsJsonEqual(o, decode(bytes));
-    checkIsJsonEqual(o, decodeChunked(bytes, 1));
-    checkIsJsonEqual(o, decodeChunked(bytes, 2));
-    checkIsJsonEqual(o, decodeChunked(bytes, 3));
-    checkIsJsonEqual(o, decodeChunked(bytes, 4));
-    checkIsJsonEqual(o, decodeChunked(bytes, 5));
-  }
-}
diff --git a/tests/lib_2/convert/streamed_conversion_json_utf8_encode_test.dart b/tests/lib_2/convert/streamed_conversion_json_utf8_encode_test.dart
deleted file mode 100644
index d9d776dff01..00000000000
--- a/tests/lib_2/convert/streamed_conversion_json_utf8_encode_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'dart:convert';
-import 'json_unicode_tests.dart';
-import "package:async_helper/async_helper.dart";
-
-final jsonUtf8 = json.fuse<List<int>>(utf8);
-
-Stream<List<int>> encode(Object o) {
-  var controller;
-  controller = new StreamController(onListen: () {
-    controller.add(o);
-    controller.close();
-  });
-  return controller.stream.transform(jsonUtf8.encoder);
-}
-
-void testUnpaused(List<int> expected, Stream<List<int>> stream) {
-  asyncStart();
-  stream.toList().then((list) {
-    var combined = <int>[];
-    list.forEach(combined.addAll);
-    Expect.listEquals(expected, combined);
-    asyncEnd();
-  });
-}
-
-void testWithPauses(List<int> expected, Stream<List<int>> stream) {
-  asyncStart();
-  var accumulated = <int>[];
-  var sub;
-  sub = stream.listen((x) {
-    accumulated.addAll(x);
-    sub.pause(new Future.delayed(Duration.zero));
-  }, onDone: () {
-    Expect.listEquals(expected, accumulated);
-    asyncEnd();
-  });
-}
-
-void main() {
-  for (var test in JSON_UNICODE_TESTS) {
-    var expected = test[0];
-    var object = test[1];
-    testUnpaused(expected, encode(object));
-    testWithPauses(expected, encode(object));
-  }
-}
diff --git a/tests/lib_2/convert/streamed_conversion_utf8_decode_test.dart b/tests/lib_2/convert/streamed_conversion_utf8_decode_test.dart
deleted file mode 100644
index 10424b7c555..00000000000
--- a/tests/lib_2/convert/streamed_conversion_utf8_decode_test.dart
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'dart:convert';
-import 'unicode_tests.dart';
-import "package:async_helper/async_helper.dart";
-
-Stream<String> decode(List<int> bytes, int chunkSize) {
-  var controller;
-  controller = new StreamController<List<int>>(onListen: () {
-    int i = 0;
-    while (i < bytes.length) {
-      List nextChunk = <int>[];
-      for (int j = 0; j < chunkSize; j++) {
-        if (i < bytes.length) {
-          nextChunk.add(bytes[i]);
-          i++;
-        }
-      }
-      controller.add(nextChunk);
-    }
-    controller.close();
-  });
-  return controller.stream.transform(utf8.decoder);
-}
-
-testUnpaused(String expected, Stream stream) {
-  asyncStart();
-  stream.toList().then((list) {
-    StringBuffer buffer = new StringBuffer();
-    buffer.writeAll(list);
-    Expect.stringEquals(expected, buffer.toString());
-    asyncEnd();
-  });
-}
-
-testWithPauses(String expected, Stream stream) {
-  asyncStart();
-  StringBuffer buffer = new StringBuffer();
-  var sub;
-  sub = stream.listen((x) {
-    buffer.write(x);
-    sub.pause(new Future.delayed(Duration.zero));
-  }, onDone: () {
-    Expect.stringEquals(expected, buffer.toString());
-    asyncEnd();
-  });
-}
-
-main() {
-  for (var test in UNICODE_TESTS) {
-    var bytes = test[0];
-    var expected = test[1];
-    testUnpaused(expected, decode(bytes, 1));
-    testWithPauses(expected, decode(bytes, 1));
-    testUnpaused(expected, decode(bytes, 2));
-    testWithPauses(expected, decode(bytes, 2));
-    testUnpaused(expected, decode(bytes, 3));
-    testWithPauses(expected, decode(bytes, 3));
-    testUnpaused(expected, decode(bytes, 4));
-    testWithPauses(expected, decode(bytes, 4));
-  }
-}
diff --git a/tests/lib_2/convert/streamed_conversion_utf8_encode_test.dart b/tests/lib_2/convert/streamed_conversion_utf8_encode_test.dart
deleted file mode 100644
index d260db50e01..00000000000
--- a/tests/lib_2/convert/streamed_conversion_utf8_encode_test.dart
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:async';
-import 'dart:convert';
-import 'unicode_tests.dart';
-import "package:async_helper/async_helper.dart";
-
-Stream<List<int>> encode(String string, int chunkSize) {
-  var controller;
-  controller = new StreamController<String>(onListen: () {
-    int i = 0;
-    while (i < string.length) {
-      if (i + chunkSize <= string.length) {
-        controller.add(string.substring(i, i + chunkSize));
-      } else {
-        controller.add(string.substring(i));
-      }
-      i += chunkSize;
-    }
-    controller.close();
-  });
-  return controller.stream.transform(utf8.encoder);
-}
-
-void testUnpaused(List<int> expected, Stream<List<int>> stream) {
-  asyncStart();
-  stream.toList().then((list) {
-    var combined = [];
-    // Flatten the list.
-    list.forEach(combined.addAll);
-    Expect.listEquals(expected, combined);
-    asyncEnd();
-  });
-}
-
-void testWithPauses(List<int> expected, Stream<List<int>> stream) {
-  asyncStart();
-  var combined = <int>[];
-  var sub;
-  sub = stream.listen((x) {
-    combined.addAll(x);
-    sub.pause(new Future.delayed(Duration.zero));
-  }, onDone: () {
-    Expect.listEquals(expected, combined);
-    asyncEnd();
-  });
-}
-
-main() {
-  for (var test in UNICODE_TESTS) {
-    var expected = test[0];
-    var string = test[1];
-    testUnpaused(expected, encode(string, 1));
-    testWithPauses(expected, encode(string, 1));
-    testUnpaused(expected, encode(string, 2));
-    testWithPauses(expected, encode(string, 2));
-  }
-}
diff --git a/tests/lib_2/convert/unicode_tests.dart b/tests/lib_2/convert/unicode_tests.dart
deleted file mode 100644
index 0c8090679c1..00000000000
--- a/tests/lib_2/convert/unicode_tests.dart
+++ /dev/null
@@ -1,245 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library unicode_tests;
-
-// Google favorite: "Îñţérñåţîöñåļîžåţîờñ".
-const INTER_BYTES = const [
-  0xc3,
-  0x8e,
-  0xc3,
-  0xb1,
-  0xc5,
-  0xa3,
-  0xc3,
-  0xa9,
-  0x72,
-  0xc3,
-  0xb1,
-  0xc3,
-  0xa5,
-  0xc5,
-  0xa3,
-  0xc3,
-  0xae,
-  0xc3,
-  0xb6,
-  0xc3,
-  0xb1,
-  0xc3,
-  0xa5,
-  0xc4,
-  0xbc,
-  0xc3,
-  0xae,
-  0xc5,
-  0xbe,
-  0xc3,
-  0xa5,
-  0xc5,
-  0xa3,
-  0xc3,
-  0xae,
-  0xe1,
-  0xbb,
-  0x9d,
-  0xc3,
-  0xb1
-];
-const INTER_STRING = "Îñţérñåţîöñåļîžåţîờñ";
-
-// Blueberry porridge in Danish: "blåbærgrød".
-const BLUEBERRY_BYTES = const [
-  0x62,
-  0x6c,
-  0xc3,
-  0xa5,
-  0x62,
-  0xc3,
-  0xa6,
-  0x72,
-  0x67,
-  0x72,
-  0xc3,
-  0xb8,
-  0x64
-];
-const BLUEBERRY_STRING = "blåbærgrød";
-
-// "சிவா அணாமாைல", that is "Siva Annamalai" in Tamil.
-const SIVA_BYTES1 = const [
-  0xe0,
-  0xae,
-  0x9a,
-  0xe0,
-  0xae,
-  0xbf,
-  0xe0,
-  0xae,
-  0xb5,
-  0xe0,
-  0xae,
-  0xbe,
-  0x20,
-  0xe0,
-  0xae,
-  0x85,
-  0xe0,
-  0xae,
-  0xa3,
-  0xe0,
-  0xae,
-  0xbe,
-  0xe0,
-  0xae,
-  0xae,
-  0xe0,
-  0xae,
-  0xbe,
-  0xe0,
-  0xaf,
-  0x88,
-  0xe0,
-  0xae,
-  0xb2
-];
-const SIVA_STRING1 = "சிவா அணாமாைல";
-
-// "िसवा अणामालै", that is "Siva Annamalai" in Devanagari.
-const SIVA_BYTES2 = const [
-  0xe0,
-  0xa4,
-  0xbf,
-  0xe0,
-  0xa4,
-  0xb8,
-  0xe0,
-  0xa4,
-  0xb5,
-  0xe0,
-  0xa4,
-  0xbe,
-  0x20,
-  0xe0,
-  0xa4,
-  0x85,
-  0xe0,
-  0xa4,
-  0xa3,
-  0xe0,
-  0xa4,
-  0xbe,
-  0xe0,
-  0xa4,
-  0xae,
-  0xe0,
-  0xa4,
-  0xbe,
-  0xe0,
-  0xa4,
-  0xb2,
-  0xe0,
-  0xa5,
-  0x88
-];
-const SIVA_STRING2 = "िसवा अणामालै";
-
-// DESERET CAPITAL LETTER BEE, unicode 0x10412(0xD801+0xDC12)
-// UTF-8: F0 90 90 92
-const BEE_BYTES = const [0xf0, 0x90, 0x90, 0x92];
-const BEE_STRING = "𐐒";
-
-const DIGIT_BYTES = const [0x35];
-const DIGIT_STRING = "5";
-
-const ASCII_BYTES = const [
-  0x61,
-  0x62,
-  0x63,
-  0x64,
-  0x65,
-  0x66,
-  0x67,
-  0x68,
-  0x69,
-  0x6A,
-  0x6B,
-  0x6C,
-  0x6D,
-  0x6E,
-  0x6F,
-  0x70,
-  0x71,
-  0x72,
-  0x73,
-  0x74,
-  0x75,
-  0x76,
-  0x77,
-  0x78,
-  0x79,
-  0x7A
-];
-const ASCII_STRING = "abcdefghijklmnopqrstuvwxyz";
-
-const BIGGEST_ASCII_BYTES = const [0x7F];
-const BIGGEST_ASCII_STRING = "\x7F";
-
-const SMALLEST_2_UTF8_UNIT_BYTES = const [0xC2, 0x80];
-const SMALLEST_2_UTF8_UNIT_STRING = "\u{80}";
-
-const BIGGEST_2_UTF8_UNIT_BYTES = const [0xDF, 0xBF];
-const BIGGEST_2_UTF8_UNIT_STRING = "\u{7FF}";
-
-const SMALLEST_3_UTF8_UNIT_BYTES = const [0xE0, 0xA0, 0x80];
-const SMALLEST_3_UTF8_UNIT_STRING = "\u{800}";
-
-const BIGGEST_3_UTF8_UNIT_BYTES = const [0xEF, 0xBF, 0xBF];
-const BIGGEST_3_UTF8_UNIT_STRING = "\u{FFFF}";
-
-const SMALLEST_4_UTF8_UNIT_BYTES = const [0xF0, 0x90, 0x80, 0x80];
-const SMALLEST_4_UTF8_UNIT_STRING = "\u{10000}";
-
-const BIGGEST_4_UTF8_UNIT_BYTES = const [0xF4, 0x8F, 0xBF, 0xBF];
-const BIGGEST_4_UTF8_UNIT_STRING = "\u{10FFFF}";
-
-const _TEST_PAIRS = const [
-  const [const <int>[], ""],
-  const [INTER_BYTES, INTER_STRING],
-  const [BLUEBERRY_BYTES, BLUEBERRY_STRING],
-  const [SIVA_BYTES1, SIVA_STRING1],
-  const [SIVA_BYTES2, SIVA_STRING2],
-  const [BEE_BYTES, BEE_STRING],
-  const [DIGIT_BYTES, DIGIT_STRING],
-  const [ASCII_BYTES, ASCII_STRING],
-  const [BIGGEST_ASCII_BYTES, BIGGEST_ASCII_STRING],
-  const [SMALLEST_2_UTF8_UNIT_BYTES, SMALLEST_2_UTF8_UNIT_STRING],
-  const [BIGGEST_2_UTF8_UNIT_BYTES, BIGGEST_2_UTF8_UNIT_STRING],
-  const [SMALLEST_3_UTF8_UNIT_BYTES, SMALLEST_3_UTF8_UNIT_STRING],
-  const [BIGGEST_3_UTF8_UNIT_BYTES, BIGGEST_3_UTF8_UNIT_STRING],
-  const [SMALLEST_4_UTF8_UNIT_BYTES, SMALLEST_4_UTF8_UNIT_STRING],
-  const [BIGGEST_4_UTF8_UNIT_BYTES, BIGGEST_4_UTF8_UNIT_STRING],
-];
-
-List<List> _expandTestPairs() {
-  assert(2 == BEE_STRING.length);
-  var tests = <List>[];
-  tests.addAll(_TEST_PAIRS);
-  tests.addAll(_TEST_PAIRS.map((test) {
-    var bytes = test[0];
-    var string = test[1];
-    var longBytes = <int>[];
-    var longString = "";
-    for (int i = 0; i < 100; i++) {
-      longBytes.addAll(bytes);
-      longString += string;
-    }
-    return [longBytes, longString];
-  }));
-  return tests;
-}
-
-final List UNICODE_TESTS = _expandTestPairs();
diff --git a/tests/lib_2/convert/utf82_test.dart b/tests/lib_2/convert/utf82_test.dart
deleted file mode 100644
index 7aa483f9ad3..00000000000
--- a/tests/lib_2/convert/utf82_test.dart
+++ /dev/null
@@ -1,289 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library utf8_test;
-
-import "package:expect/expect.dart";
-import 'dart:convert';
-import 'dart:typed_data' show Uint8List;
-
-String decode(List<int> bytes) => new Utf8Decoder().convert(bytes);
-String decodeAllowMalformed(List<int> bytes) {
-  return new Utf8Decoder(allowMalformed: true).convert(bytes);
-}
-
-String decode2(List<int> bytes) => utf8.decode(bytes);
-String decodeAllowMalformed2(List<int> bytes) {
-  return utf8.decode(bytes, allowMalformed: true);
-}
-
-String decode3(List<int> bytes) => new Utf8Codec().decode(bytes);
-String decodeAllowMalformed3(List<int> bytes) {
-  return new Utf8Codec(allowMalformed: true).decode(bytes);
-}
-
-String decode4(List<int> bytes) => new Utf8Codec().decoder.convert(bytes);
-String decodeAllowMalformed4(List<int> bytes) {
-  return new Utf8Codec(allowMalformed: true).decoder.convert(bytes);
-}
-
-final TESTS0 = [
-  // Unfinished UTF-8 sequences.
-  [0xc3],
-  [0xE2, 0x82],
-  [0xF0, 0xA4, 0xAD]
-];
-
-final TESTS1 = [
-  // Overlong encoding of euro-sign.
-  [0xF0, 0x82, 0x82, 0xAC],
-  // Other overlong/unfinished sequences.
-  [0xC0],
-  [0xC1],
-  [0xF5],
-  [0xF6],
-  [0xF7],
-  [0xF8],
-  [0xF9],
-  [0xFA],
-  [0xFB],
-  [0xFC],
-  [0xFD],
-  [0xFE],
-  [0xFF],
-  [0xC0, 0x80],
-  [0xC1, 0x80],
-  // Outside valid range.
-  [0xF4, 0xBF, 0xBF, 0xBF],
-  // Negative
-  [-0x01],
-  [-0xFF],
-  [-0x80000000],
-  [-0x40000000],
-];
-
-final TESTS2 = [
-  // Test that 0xC0|1, 0x80 does not eat the next character.
-  [
-    [0xC0, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xC1, 0x80, 0x61],
-    "XXa"
-  ],
-  // 0xF5 .. 0xFF never appear in valid UTF-8 sequences.
-  [
-    [0xF5, 0x80],
-    "XX"
-  ],
-  [
-    [0xF6, 0x80],
-    "XX"
-  ],
-  [
-    [0xF7, 0x80],
-    "XX"
-  ],
-  [
-    [0xF8, 0x80],
-    "XX"
-  ],
-  [
-    [0xF9, 0x80],
-    "XX"
-  ],
-  [
-    [0xFA, 0x80],
-    "XX"
-  ],
-  [
-    [0xFB, 0x80],
-    "XX"
-  ],
-  [
-    [0xFC, 0x80],
-    "XX"
-  ],
-  [
-    [0xFD, 0x80],
-    "XX"
-  ],
-  [
-    [0xFE, 0x80],
-    "XX"
-  ],
-  [
-    [0xFF, 0x80],
-    "XX"
-  ],
-  [
-    [0xF5, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xF6, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xF7, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xF8, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xF9, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xFA, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xFB, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xFC, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xFD, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xFE, 0x80, 0x61],
-    "XXa"
-  ],
-  [
-    [0xFF, 0x80, 0x61],
-    "XXa"
-  ],
-  // Characters outside the valid range.
-  [
-    [0xF5, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xF6, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xF7, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xF8, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xF9, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xFA, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xFB, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xFC, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xFD, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xFE, 0x80, 0x80, 0x61],
-    "XXXa"
-  ],
-  [
-    [0xFF, 0x80, 0x80, 0x61],
-    "XXXa"
-  ]
-];
-
-main() {
-  var allTests = [...TESTS0, ...TESTS1].expand((test) {
-    // Pairs of test and expected string output when malformed strings are
-    // allowed. Replacement character: U+FFFD, one per unfinished sequence or
-    // undecodable byte.
-    String replacement =
-        TESTS0.contains(test) ? "\u{FFFD}" : "\u{FFFD}" * test.length;
-    return [
-      [test, "${replacement}"],
-      [
-        [0x61, ...test],
-        "a${replacement}"
-      ],
-      [
-        [0x61, ...test, 0x61],
-        "a${replacement}a"
-      ],
-      [
-        [...test, 0x61],
-        "${replacement}a"
-      ],
-      [
-        [...test, ...test],
-        "${replacement}${replacement}"
-      ],
-      [
-        [...test, 0x61, ...test],
-        "${replacement}a${replacement}"
-      ],
-      [
-        [0xc3, 0xa5, ...test],
-        "å${replacement}"
-      ],
-      [
-        [0xc3, 0xa5, ...test, 0xc3, 0xa5],
-        "å${replacement}å"
-      ],
-      [
-        [...test, 0xc3, 0xa5],
-        "${replacement}å"
-      ],
-      [
-        [...test, 0xc3, 0xa5, ...test],
-        "${replacement}å${replacement}"
-      ]
-    ];
-  });
-
-  var allTests2 = TESTS2.map((test) {
-    // Pairs of test and expected string output when malformed strings are
-    // allowed. Replacement character: U+FFFD
-    String expected = (test[1] as String).replaceAll("X", "\u{FFFD}");
-    return [test[0], expected];
-  });
-
-  check(String expected, List<int> bytes, String description) {
-    Expect.throwsFormatException(() => decode(bytes));
-    Expect.throwsFormatException(() => decode2(bytes));
-    Expect.throwsFormatException(() => decode3(bytes));
-    Expect.throwsFormatException(() => decode4(bytes));
-
-    Expect.equals(expected, decodeAllowMalformed(bytes));
-    Expect.equals(expected, decodeAllowMalformed2(bytes));
-    Expect.equals(expected, decodeAllowMalformed3(bytes));
-    Expect.equals(expected, decodeAllowMalformed4(bytes));
-  }
-
-  for (var test in []..addAll(allTests)..addAll(allTests2)) {
-    List<int> bytes = test[0];
-    String expected = test[1];
-    check(expected, bytes, 'plain list');
-    if (bytes.every((byte) => 0 <= byte && byte < 256)) {
-      check(expected, new Uint8List.fromList(bytes), 'Uint8List');
-    }
-  }
-}
diff --git a/tests/lib_2/convert/utf83_test.dart b/tests/lib_2/convert/utf83_test.dart
deleted file mode 100644
index 2a980c18527..00000000000
--- a/tests/lib_2/convert/utf83_test.dart
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library utf8_test;
-
-import "package:expect/expect.dart";
-import 'dart:convert';
-import 'dart:typed_data' show Uint8List;
-
-/// [bytes] transforms the input into some representation (eg. plain list,
-/// Uint8List).
-test(List<int> bytes(List<int> input)) {
-  // Test that UTF8-decoder removes leading BOM.
-  Expect.equals("a", utf8.decode(bytes([0xEF, 0xBB, 0xBF, 0x61])));
-  Expect.equals("a", utf8.decoder.convert(bytes([0xEF, 0xBB, 0xBF, 0x61])));
-  Expect.equals(
-      "a", new Utf8Decoder().convert(bytes([0xEF, 0xBB, 0xBF, 0x61])));
-  Expect.equals(
-      "a", utf8.decode(bytes([0xEF, 0xBB, 0xBF, 0x61]), allowMalformed: true));
-  Expect.equals(
-      "a",
-      new Utf8Codec(allowMalformed: true)
-          .decode(bytes([0xEF, 0xBB, 0xBF, 0x61])));
-  Expect.equals(
-      "a",
-      new Utf8Codec(allowMalformed: true)
-          .decoder
-          .convert(bytes([0xEF, 0xBB, 0xBF, 0x61])));
-  Expect.equals(
-      "a",
-      new Utf8Decoder(allowMalformed: true)
-          .convert(bytes([0xEF, 0xBB, 0xBF, 0x61])));
-  Expect.equals("", utf8.decode(bytes([0xEF, 0xBB, 0xBF])));
-  Expect.equals("", utf8.decoder.convert(bytes([0xEF, 0xBB, 0xBF])));
-  Expect.equals("", new Utf8Decoder().convert(bytes([0xEF, 0xBB, 0xBF])));
-  Expect.equals(
-      "", utf8.decode(bytes([0xEF, 0xBB, 0xBF]), allowMalformed: true));
-  Expect.equals("",
-      new Utf8Codec(allowMalformed: true).decode(bytes([0xEF, 0xBB, 0xBF])));
-  Expect.equals(
-      "",
-      new Utf8Codec(allowMalformed: true)
-          .decoder
-          .convert(bytes([0xEF, 0xBB, 0xBF])));
-  Expect.equals("",
-      new Utf8Decoder(allowMalformed: true).convert(bytes([0xEF, 0xBB, 0xBF])));
-  Expect.equals("a\u{FEFF}", utf8.decode(bytes([0x61, 0xEF, 0xBB, 0xBF])));
-  Expect.equals(
-      "a\u{FEFF}", utf8.decoder.convert(bytes([0x61, 0xEF, 0xBB, 0xBF])));
-  Expect.equals(
-      "a\u{FEFF}", new Utf8Decoder().convert(bytes([0x61, 0xEF, 0xBB, 0xBF])));
-  Expect.equals("a\u{FEFF}",
-      utf8.decode(bytes([0x61, 0xEF, 0xBB, 0xBF]), allowMalformed: true));
-  Expect.equals(
-      "a\u{FEFF}",
-      new Utf8Codec(allowMalformed: true)
-          .decode(bytes([0x61, 0xEF, 0xBB, 0xBF])));
-  Expect.equals(
-      "a\u{FEFF}",
-      new Utf8Codec(allowMalformed: true)
-          .decoder
-          .convert(bytes([0x61, 0xEF, 0xBB, 0xBF])));
-  Expect.equals(
-      "a\u{FEFF}",
-      new Utf8Decoder(allowMalformed: true)
-          .convert(bytes([0x61, 0xEF, 0xBB, 0xBF])));
-}
-
-main() {
-  test((list) => list);
-  test((list) => new Uint8List.fromList(list));
-}
diff --git a/tests/lib_2/convert/utf84_test.dart b/tests/lib_2/convert/utf84_test.dart
deleted file mode 100755
index 639504a4b4b..00000000000
--- a/tests/lib_2/convert/utf84_test.dart
+++ /dev/null
@@ -1,1048 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'dart:convert';
-import 'dart:typed_data' show Uint8List;
-
-const String testEnglishPhrase = "The quick brown fox jumps over the lazy dog.";
-
-const List<int> testEnglishUtf8 = const <int>[
-  0x54,
-  0x68,
-  0x65,
-  0x20,
-  0x71,
-  0x75,
-  0x69,
-  0x63,
-  0x6b,
-  0x20,
-  0x62,
-  0x72,
-  0x6f,
-  0x77,
-  0x6e,
-  0x20,
-  0x66,
-  0x6f,
-  0x78,
-  0x20,
-  0x6a,
-  0x75,
-  0x6d,
-  0x70,
-  0x73,
-  0x20,
-  0x6f,
-  0x76,
-  0x65,
-  0x72,
-  0x20,
-  0x74,
-  0x68,
-  0x65,
-  0x20,
-  0x6c,
-  0x61,
-  0x7a,
-  0x79,
-  0x20,
-  0x64,
-  0x6f,
-  0x67,
-  0x2e
-];
-
-const String testDanishPhrase = "Quizdeltagerne spiste jordbær med "
-    "fløde mens cirkusklovnen Wolther spillede på xylofon.";
-
-const List<int> testDanishUtf8 = const <int>[
-  0x51,
-  0x75,
-  0x69,
-  0x7a,
-  0x64,
-  0x65,
-  0x6c,
-  0x74,
-  0x61,
-  0x67,
-  0x65,
-  0x72,
-  0x6e,
-  0x65,
-  0x20,
-  0x73,
-  0x70,
-  0x69,
-  0x73,
-  0x74,
-  0x65,
-  0x20,
-  0x6a,
-  0x6f,
-  0x72,
-  0x64,
-  0x62,
-  0xc3,
-  0xa6,
-  0x72,
-  0x20,
-  0x6d,
-  0x65,
-  0x64,
-  0x20,
-  0x66,
-  0x6c,
-  0xc3,
-  0xb8,
-  0x64,
-  0x65,
-  0x20,
-  0x6d,
-  0x65,
-  0x6e,
-  0x73,
-  0x20,
-  0x63,
-  0x69,
-  0x72,
-  0x6b,
-  0x75,
-  0x73,
-  0x6b,
-  0x6c,
-  0x6f,
-  0x76,
-  0x6e,
-  0x65,
-  0x6e,
-  0x20,
-  0x57,
-  0x6f,
-  0x6c,
-  0x74,
-  0x68,
-  0x65,
-  0x72,
-  0x20,
-  0x73,
-  0x70,
-  0x69,
-  0x6c,
-  0x6c,
-  0x65,
-  0x64,
-  0x65,
-  0x20,
-  0x70,
-  0xc3,
-  0xa5,
-  0x20,
-  0x78,
-  0x79,
-  0x6c,
-  0x6f,
-  0x66,
-  0x6f,
-  0x6e,
-  0x2e
-];
-
-// unusual formatting due to strange editor interaction w/ text direction.
-const String testHebrewPhrase =
-    "דג סקרן שט בים מאוכזב ולפתע מצא לו חברה איך הקליטה";
-
-const List<int> testHebrewUtf8 = const <int>[
-  0xd7,
-  0x93,
-  0xd7,
-  0x92,
-  0x20,
-  0xd7,
-  0xa1,
-  0xd7,
-  0xa7,
-  0xd7,
-  0xa8,
-  0xd7,
-  0x9f,
-  0x20,
-  0xd7,
-  0xa9,
-  0xd7,
-  0x98,
-  0x20,
-  0xd7,
-  0x91,
-  0xd7,
-  0x99,
-  0xd7,
-  0x9d,
-  0x20,
-  0xd7,
-  0x9e,
-  0xd7,
-  0x90,
-  0xd7,
-  0x95,
-  0xd7,
-  0x9b,
-  0xd7,
-  0x96,
-  0xd7,
-  0x91,
-  0x20,
-  0xd7,
-  0x95,
-  0xd7,
-  0x9c,
-  0xd7,
-  0xa4,
-  0xd7,
-  0xaa,
-  0xd7,
-  0xa2,
-  0x20,
-  0xd7,
-  0x9e,
-  0xd7,
-  0xa6,
-  0xd7,
-  0x90,
-  0x20,
-  0xd7,
-  0x9c,
-  0xd7,
-  0x95,
-  0x20,
-  0xd7,
-  0x97,
-  0xd7,
-  0x91,
-  0xd7,
-  0xa8,
-  0xd7,
-  0x94,
-  0x20,
-  0xd7,
-  0x90,
-  0xd7,
-  0x99,
-  0xd7,
-  0x9a,
-  0x20,
-  0xd7,
-  0x94,
-  0xd7,
-  0xa7,
-  0xd7,
-  0x9c,
-  0xd7,
-  0x99,
-  0xd7,
-  0x98,
-  0xd7,
-  0x94
-];
-
-const String testRussianPhrase = "Съешь же ещё этих мягких "
-    "французских булок да выпей чаю";
-
-const List<int> testRussianUtf8 = const <int>[
-  0xd0,
-  0xa1,
-  0xd1,
-  0x8a,
-  0xd0,
-  0xb5,
-  0xd1,
-  0x88,
-  0xd1,
-  0x8c,
-  0x20,
-  0xd0,
-  0xb6,
-  0xd0,
-  0xb5,
-  0x20,
-  0xd0,
-  0xb5,
-  0xd1,
-  0x89,
-  0xd1,
-  0x91,
-  0x20,
-  0xd1,
-  0x8d,
-  0xd1,
-  0x82,
-  0xd0,
-  0xb8,
-  0xd1,
-  0x85,
-  0x20,
-  0xd0,
-  0xbc,
-  0xd1,
-  0x8f,
-  0xd0,
-  0xb3,
-  0xd0,
-  0xba,
-  0xd0,
-  0xb8,
-  0xd1,
-  0x85,
-  0x20,
-  0xd1,
-  0x84,
-  0xd1,
-  0x80,
-  0xd0,
-  0xb0,
-  0xd0,
-  0xbd,
-  0xd1,
-  0x86,
-  0xd1,
-  0x83,
-  0xd0,
-  0xb7,
-  0xd1,
-  0x81,
-  0xd0,
-  0xba,
-  0xd0,
-  0xb8,
-  0xd1,
-  0x85,
-  0x20,
-  0xd0,
-  0xb1,
-  0xd1,
-  0x83,
-  0xd0,
-  0xbb,
-  0xd0,
-  0xbe,
-  0xd0,
-  0xba,
-  0x20,
-  0xd0,
-  0xb4,
-  0xd0,
-  0xb0,
-  0x20,
-  0xd0,
-  0xb2,
-  0xd1,
-  0x8b,
-  0xd0,
-  0xbf,
-  0xd0,
-  0xb5,
-  0xd0,
-  0xb9,
-  0x20,
-  0xd1,
-  0x87,
-  0xd0,
-  0xb0,
-  0xd1,
-  0x8e
-];
-
-const String testGreekPhrase = "Γαζέες καὶ μυρτιὲς δὲν θὰ βρῶ πιὰ "
-    "στὸ χρυσαφὶ ξέφωτο";
-
-const List<int> testGreekUtf8 = const <int>[
-  0xce,
-  0x93,
-  0xce,
-  0xb1,
-  0xce,
-  0xb6,
-  0xce,
-  0xad,
-  0xce,
-  0xb5,
-  0xcf,
-  0x82,
-  0x20,
-  0xce,
-  0xba,
-  0xce,
-  0xb1,
-  0xe1,
-  0xbd,
-  0xb6,
-  0x20,
-  0xce,
-  0xbc,
-  0xcf,
-  0x85,
-  0xcf,
-  0x81,
-  0xcf,
-  0x84,
-  0xce,
-  0xb9,
-  0xe1,
-  0xbd,
-  0xb2,
-  0xcf,
-  0x82,
-  0x20,
-  0xce,
-  0xb4,
-  0xe1,
-  0xbd,
-  0xb2,
-  0xce,
-  0xbd,
-  0x20,
-  0xce,
-  0xb8,
-  0xe1,
-  0xbd,
-  0xb0,
-  0x20,
-  0xce,
-  0xb2,
-  0xcf,
-  0x81,
-  0xe1,
-  0xbf,
-  0xb6,
-  0x20,
-  0xcf,
-  0x80,
-  0xce,
-  0xb9,
-  0xe1,
-  0xbd,
-  0xb0,
-  0x20,
-  0xcf,
-  0x83,
-  0xcf,
-  0x84,
-  0xe1,
-  0xbd,
-  0xb8,
-  0x20,
-  0xcf,
-  0x87,
-  0xcf,
-  0x81,
-  0xcf,
-  0x85,
-  0xcf,
-  0x83,
-  0xce,
-  0xb1,
-  0xcf,
-  0x86,
-  0xe1,
-  0xbd,
-  0xb6,
-  0x20,
-  0xce,
-  0xbe,
-  0xce,
-  0xad,
-  0xcf,
-  0x86,
-  0xcf,
-  0x89,
-  0xcf,
-  0x84,
-  0xce,
-  0xbf
-];
-
-const String testKatakanaPhrase = "イロハニホヘト チリヌルヲ ワカヨタレソ "
-    "ツネナラム ウヰノオクヤマ ケフコエテ アサキユメミシ ヱヒモセスン";
-
-const List<int> testKatakanaUtf8 = const <int>[
-  0xe3,
-  0x82,
-  0xa4,
-  0xe3,
-  0x83,
-  0xad,
-  0xe3,
-  0x83,
-  0x8f,
-  0xe3,
-  0x83,
-  0x8b,
-  0xe3,
-  0x83,
-  0x9b,
-  0xe3,
-  0x83,
-  0x98,
-  0xe3,
-  0x83,
-  0x88,
-  0x20,
-  0xe3,
-  0x83,
-  0x81,
-  0xe3,
-  0x83,
-  0xaa,
-  0xe3,
-  0x83,
-  0x8c,
-  0xe3,
-  0x83,
-  0xab,
-  0xe3,
-  0x83,
-  0xb2,
-  0x20,
-  0xe3,
-  0x83,
-  0xaf,
-  0xe3,
-  0x82,
-  0xab,
-  0xe3,
-  0x83,
-  0xa8,
-  0xe3,
-  0x82,
-  0xbf,
-  0xe3,
-  0x83,
-  0xac,
-  0xe3,
-  0x82,
-  0xbd,
-  0x20,
-  0xe3,
-  0x83,
-  0x84,
-  0xe3,
-  0x83,
-  0x8d,
-  0xe3,
-  0x83,
-  0x8a,
-  0xe3,
-  0x83,
-  0xa9,
-  0xe3,
-  0x83,
-  0xa0,
-  0x20,
-  0xe3,
-  0x82,
-  0xa6,
-  0xe3,
-  0x83,
-  0xb0,
-  0xe3,
-  0x83,
-  0x8e,
-  0xe3,
-  0x82,
-  0xaa,
-  0xe3,
-  0x82,
-  0xaf,
-  0xe3,
-  0x83,
-  0xa4,
-  0xe3,
-  0x83,
-  0x9e,
-  0x20,
-  0xe3,
-  0x82,
-  0xb1,
-  0xe3,
-  0x83,
-  0x95,
-  0xe3,
-  0x82,
-  0xb3,
-  0xe3,
-  0x82,
-  0xa8,
-  0xe3,
-  0x83,
-  0x86,
-  0x20,
-  0xe3,
-  0x82,
-  0xa2,
-  0xe3,
-  0x82,
-  0xb5,
-  0xe3,
-  0x82,
-  0xad,
-  0xe3,
-  0x83,
-  0xa6,
-  0xe3,
-  0x83,
-  0xa1,
-  0xe3,
-  0x83,
-  0x9f,
-  0xe3,
-  0x82,
-  0xb7,
-  0x20,
-  0xe3,
-  0x83,
-  0xb1,
-  0xe3,
-  0x83,
-  0x92,
-  0xe3,
-  0x83,
-  0xa2,
-  0xe3,
-  0x82,
-  0xbb,
-  0xe3,
-  0x82,
-  0xb9,
-  0xe3,
-  0x83,
-  0xb3
-];
-
-void main() {
-  testEncodeToUtf8();
-
-  String decodeUtf8List(List<int> codeUnits) => utf8.decode(codeUnits);
-  String decodeUtf8Uint8List(List<int> codeUnits) =>
-      utf8.decode(new Uint8List.fromList(codeUnits));
-
-  testUtf8BytesToString(decodeUtf8List);
-  testUtf8BytesToString(decodeUtf8Uint8List);
-
-  List<int> utf8ToRunes1(List<int> codeUnits) {
-    return utf8.decode(codeUnits, allowMalformed: true).runes.toList();
-  }
-
-  List<int> utf8ToRunes2(List<int> codeUnits) {
-    return utf8
-        .decode(new Uint8List.fromList(codeUnits), allowMalformed: true)
-        .runes
-        .toList();
-  }
-
-  testUtf8bytesToCodepoints(utf8ToRunes1);
-  testUtf8bytesToCodepoints(utf8ToRunes2);
-}
-
-void testEncodeToUtf8() {
-  List<int> encodeUtf8(String str) => utf8.encode(str);
-
-  Expect.listEquals(
-      testEnglishUtf8, encodeUtf8(testEnglishPhrase), "english to utf8");
-
-  Expect.listEquals(
-      testDanishUtf8, encodeUtf8(testDanishPhrase), "encode danish to utf8");
-
-  Expect.listEquals(
-      testHebrewUtf8, encodeUtf8(testHebrewPhrase), "Hebrew to utf8");
-
-  Expect.listEquals(
-      testRussianUtf8, encodeUtf8(testRussianPhrase), "Russian to utf8");
-
-  Expect.listEquals(
-      testGreekUtf8, encodeUtf8(testGreekPhrase), "Greek to utf8");
-
-  Expect.listEquals(
-      testKatakanaUtf8, encodeUtf8(testKatakanaPhrase), "Katakana to utf8");
-}
-
-void testUtf8bytesToCodepoints(List<int> utf8ToRunes(List<int> utf8)) {
-  Expect.listEquals(
-      [954, 972, 963, 956, 949],
-      utf8ToRunes([0xce, 0xba, 0xcf, 0x8c, 0xcf, 0x83, 0xce, 0xbc, 0xce, 0xb5]),
-      "κόσμε");
-
-  // boundary conditions: First possible sequence of a certain length
-  Expect.listEquals([], utf8ToRunes([]), "no input");
-  Expect.listEquals([0x0], utf8ToRunes([0x0]), "0");
-  Expect.listEquals([0x80], utf8ToRunes([0xc2, 0x80]), "80");
-  Expect.listEquals([0x800], utf8ToRunes([0xe0, 0xa0, 0x80]), "800");
-  Expect.listEquals([0x10000], utf8ToRunes([0xf0, 0x90, 0x80, 0x80]), "10000");
-  Expect.listEquals([
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune
-  ], utf8ToRunes([0xf8, 0x88, 0x80, 0x80, 0x80]), "200000");
-  Expect.listEquals([
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune
-  ], utf8ToRunes([0xfc, 0x84, 0x80, 0x80, 0x80, 0x80]), "4000000");
-
-  // boundary conditions: Last possible sequence of a certain length
-  Expect.listEquals([0x7f], utf8ToRunes([0x7f]), "7f");
-  Expect.listEquals([0x7ff], utf8ToRunes([0xdf, 0xbf]), "7ff");
-  Expect.listEquals([0xffff], utf8ToRunes([0xef, 0xbf, 0xbf]), "ffff");
-  Expect.listEquals([
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune
-  ], utf8ToRunes([0xf7, 0xbf, 0xbf, 0xbf]), "1fffff");
-  Expect.listEquals([
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune
-  ], utf8ToRunes([0xfb, 0xbf, 0xbf, 0xbf, 0xbf]), "3ffffff");
-  Expect.listEquals([
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune
-  ], utf8ToRunes([0xfd, 0xbf, 0xbf, 0xbf, 0xbf, 0xbf]), "4000000");
-
-  // other boundary conditions
-  Expect.listEquals([0xd7ff], utf8ToRunes([0xed, 0x9f, 0xbf]), "d7ff");
-  Expect.listEquals([0xe000], utf8ToRunes([0xee, 0x80, 0x80]), "e000");
-  Expect.listEquals([unicodeReplacementCharacterRune],
-      utf8ToRunes([0xef, 0xbf, 0xbd]), "fffd");
-  Expect.listEquals(
-      [0x10ffff], utf8ToRunes([0xf4, 0x8f, 0xbf, 0xbf]), "10ffff");
-  Expect.listEquals([
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune
-  ], utf8ToRunes([0xf4, 0x90, 0x80, 0x80]), "110000");
-
-  // unexpected continuation bytes
-  Expect.listEquals([unicodeReplacementCharacterRune], utf8ToRunes([0x80]),
-      "80 => replacement character");
-  Expect.listEquals([unicodeReplacementCharacterRune], utf8ToRunes([0xbf]),
-      "bf => replacement character");
-
-  List<int> allContinuationBytes = <int>[];
-  List<int> matchingReplacementChars = <int>[];
-  for (int i = 0x80; i < 0xc0; i++) {
-    allContinuationBytes.add(i);
-    matchingReplacementChars.add(unicodeReplacementCharacterRune);
-  }
-  Expect.listEquals(matchingReplacementChars, utf8ToRunes(allContinuationBytes),
-      "80 - bf => replacement character x 64");
-
-  List<int> allFirstTwoByteSeq = <int>[];
-  matchingReplacementChars = <int>[];
-  for (int i = 0xc0; i < 0xe0; i++) {
-    allFirstTwoByteSeq.addAll([i, 0x20]);
-    matchingReplacementChars.addAll([unicodeReplacementCharacterRune, 0x20]);
-  }
-  Expect.listEquals(matchingReplacementChars, utf8ToRunes(allFirstTwoByteSeq),
-      "c0 - df + space => replacement character + space x 32");
-
-  List<int> allFirstThreeByteSeq = <int>[];
-  matchingReplacementChars = <int>[];
-  for (int i = 0xe0; i < 0xf0; i++) {
-    allFirstThreeByteSeq.addAll([i, 0x20]);
-    matchingReplacementChars.addAll([unicodeReplacementCharacterRune, 0x20]);
-  }
-  Expect.listEquals(matchingReplacementChars, utf8ToRunes(allFirstThreeByteSeq),
-      "e0 - ef + space => replacement character x 16");
-
-  List<int> allFirstFourByteSeq = <int>[];
-  matchingReplacementChars = <int>[];
-  for (int i = 0xf0; i < 0xf8; i++) {
-    allFirstFourByteSeq.addAll([i, 0x20]);
-    matchingReplacementChars.addAll([unicodeReplacementCharacterRune, 0x20]);
-  }
-  Expect.listEquals(matchingReplacementChars, utf8ToRunes(allFirstFourByteSeq),
-      "f0 - f7 + space => replacement character x 8");
-
-  List<int> allFirstFiveByteSeq = <int>[];
-  matchingReplacementChars = <int>[];
-  for (int i = 0xf8; i < 0xfc; i++) {
-    allFirstFiveByteSeq.addAll([i, 0x20]);
-    matchingReplacementChars.addAll([unicodeReplacementCharacterRune, 0x20]);
-  }
-  Expect.listEquals(matchingReplacementChars, utf8ToRunes(allFirstFiveByteSeq),
-      "f8 - fb + space => replacement character x 4");
-
-  List<int> allFirstSixByteSeq = <int>[];
-  matchingReplacementChars = <int>[];
-  for (int i = 0xfc; i < 0xfe; i++) {
-    allFirstSixByteSeq.addAll([i, 0x20]);
-    matchingReplacementChars.addAll([unicodeReplacementCharacterRune, 0x20]);
-  }
-  Expect.listEquals(matchingReplacementChars, utf8ToRunes(allFirstSixByteSeq),
-      "fc - fd + space => replacement character x 2");
-
-  // Sequences with last continuation byte missing
-  Expect.listEquals([unicodeReplacementCharacterRune], utf8ToRunes([0xc2]),
-      "2-byte sequence with last byte missing");
-  Expect.listEquals(
-      [unicodeReplacementCharacterRune, unicodeReplacementCharacterRune],
-      utf8ToRunes([0xe0, 0x80]),
-      "3-byte sequence with last byte missing");
-  Expect.listEquals([
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune
-  ], utf8ToRunes([0xf0, 0x80, 0x80]), "4-byte sequence with last byte missing");
-  Expect.listEquals([
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune
-  ], utf8ToRunes([0xf8, 0x88, 0x80, 0x80]),
-      "5-byte sequence with last byte missing");
-  Expect.listEquals([
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune
-  ], utf8ToRunes([0xfc, 0x80, 0x80, 0x80, 0x80]),
-      "6-byte sequence with last byte missing");
-
-  Expect.listEquals([unicodeReplacementCharacterRune], utf8ToRunes([0xdf]),
-      "2-byte sequence with last byte missing (hi)");
-  Expect.listEquals([unicodeReplacementCharacterRune],
-      utf8ToRunes([0xef, 0xbf]), "3-byte sequence with last byte missing (hi)");
-  Expect.listEquals([
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune
-  ], utf8ToRunes([0xf7, 0xbf, 0xbf]),
-      "4-byte sequence with last byte missing (hi)");
-  Expect.listEquals([
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune
-  ], utf8ToRunes([0xfb, 0xbf, 0xbf, 0xbf]),
-      "5-byte sequence with last byte missing (hi)");
-  Expect.listEquals([
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune
-  ], utf8ToRunes([0xfd, 0xbf, 0xbf, 0xbf, 0xbf]),
-      "6-byte sequence with last byte missing (hi)");
-
-  // Concatenation of incomplete sequences
-  Expect.listEquals(
-      [
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune,
-        unicodeReplacementCharacterRune
-      ],
-      utf8ToRunes([
-        0xc2,
-        0xe0,
-        0x80,
-        0xf0,
-        0x80,
-        0x80,
-        0xf8,
-        0x88,
-        0x80,
-        0x80,
-        0xfc,
-        0x80,
-        0x80,
-        0x80,
-        0x80,
-        0xdf,
-        0xef, // These two bytes form one incomplete sequence.
-        0xbf, // All others form one per byte.
-        0xf7,
-        0xbf,
-        0xbf,
-        0xfb,
-        0xbf,
-        0xbf,
-        0xbf,
-        0xfd,
-        0xbf,
-        0xbf,
-        0xbf,
-        0xbf
-      ]),
-      "Concatenation of incomplete sequences");
-
-  // Impossible bytes
-  Expect.listEquals(
-      [unicodeReplacementCharacterRune], utf8ToRunes([0xfe]), "fe");
-  Expect.listEquals(
-      [unicodeReplacementCharacterRune], utf8ToRunes([0xff]), "ff");
-  Expect.listEquals([
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune
-  ], utf8ToRunes([0xfe, 0xfe, 0xff, 0xff]), "fe fe ff ff");
-
-  // Overlong sequences
-  Expect.listEquals(
-      [unicodeReplacementCharacterRune, unicodeReplacementCharacterRune],
-      utf8ToRunes([0xc0, 0xaf]),
-      "c0 af");
-  Expect.listEquals([
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune
-  ], utf8ToRunes([0xe0, 0x80, 0xaf]), "e0 80 af");
-  Expect.listEquals([
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune
-  ], utf8ToRunes([0xf0, 0x80, 0x80, 0xaf]), "f0 80 80 af");
-  Expect.listEquals([
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune
-  ], utf8ToRunes([0xf8, 0x80, 0x80, 0x80, 0xaf]), "f8 80 80 80 af");
-  Expect.listEquals([
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune
-  ], utf8ToRunes([0xfc, 0x80, 0x80, 0x80, 0x80, 0xaf]), "fc 80 80 80 80 af");
-
-  Expect.listEquals(
-      [unicodeReplacementCharacterRune, unicodeReplacementCharacterRune],
-      utf8ToRunes([0xc1, 0xbf]),
-      "c1 bf");
-  Expect.listEquals([
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune
-  ], utf8ToRunes([0xe0, 0x9f, 0xbf]), "e0 9f bf");
-  Expect.listEquals([
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune
-  ], utf8ToRunes([0xf0, 0x8f, 0xbf, 0xbf]), "f0 8f bf bf");
-  Expect.listEquals([
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune
-  ], utf8ToRunes([0xf8, 0x87, 0xbf, 0xbf, 0xbf]), "f8 87 bf bf bf");
-  Expect.listEquals([
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune
-  ], utf8ToRunes([0xfc, 0x83, 0xbf, 0xbf, 0xbf, 0xbf]), "fc 83 bf bf bf bf");
-
-  Expect.listEquals(
-      [unicodeReplacementCharacterRune, unicodeReplacementCharacterRune],
-      utf8ToRunes([0xc0, 0x80]),
-      "c0 80");
-  Expect.listEquals([
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune
-  ], utf8ToRunes([0xe0, 0x80, 0x80]), "e0 80 80");
-  Expect.listEquals([
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune
-  ], utf8ToRunes([0xf0, 0x80, 0x80, 0x80]), "f0 80 80 80");
-  Expect.listEquals([
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune
-  ], utf8ToRunes([0xf8, 0x80, 0x80, 0x80, 0x80]), "f8 80 80 80 80");
-  Expect.listEquals([
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune,
-    unicodeReplacementCharacterRune
-  ], utf8ToRunes([0xfc, 0x80, 0x80, 0x80, 0x80, 0x80]), "fc 80 80 80 80 80");
-
-  // Other illegal code positions (???)
-  Expect.listEquals([0xfffe], utf8ToRunes([0xef, 0xbf, 0xbe]), "U+FFFE");
-  Expect.listEquals([0xffff], utf8ToRunes([0xef, 0xbf, 0xbf]), "U+FFFF");
-}
-
-void testUtf8BytesToString(String decodeUtf8(List<int> input)) {
-  Expect.stringEquals(
-      testEnglishPhrase, decodeUtf8(testEnglishUtf8), "English");
-
-  Expect.stringEquals(testDanishPhrase, decodeUtf8(testDanishUtf8), "Danish");
-
-  Expect.stringEquals(testHebrewPhrase, decodeUtf8(testHebrewUtf8), "Hebrew");
-
-  Expect.stringEquals(
-      testRussianPhrase, decodeUtf8(testRussianUtf8), "Russian");
-
-  Expect.stringEquals(testGreekPhrase, decodeUtf8(testGreekUtf8), "Greek");
-
-  Expect.stringEquals(
-      testKatakanaPhrase, decodeUtf8(testKatakanaUtf8), "Katakana");
-}
diff --git a/tests/lib_2/convert/utf85_test.dart b/tests/lib_2/convert/utf85_test.dart
deleted file mode 100644
index 75e05e1c4f0..00000000000
--- a/tests/lib_2/convert/utf85_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library utf8_test;
-
-import "package:expect/expect.dart";
-import 'dart:convert';
-
-main() {
-  for (int i = 0; i <= 0x10FFFF; i++) {
-    if (i == unicodeBomCharacterRune || (i & 0x1FF800) == 0xD800) continue;
-    Expect.equals(
-        i, utf8.decode(utf8.encode(new String.fromCharCode(i))).runes.first);
-  }
-}
diff --git a/tests/lib_2/convert/utf8_encode_test.dart b/tests/lib_2/convert/utf8_encode_test.dart
deleted file mode 100644
index 66ee3774f60..00000000000
--- a/tests/lib_2/convert/utf8_encode_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:convert';
-import 'unicode_tests.dart';
-
-List<int> encode(String str) => new Utf8Encoder().convert(str);
-List<int> encode2(String str) => utf8.encode(str);
-
-void main() {
-  for (var test in UNICODE_TESTS) {
-    List<int> bytes = test[0];
-    String string = test[1];
-    Expect.listEquals(bytes, encode(string));
-    Expect.listEquals(bytes, encode2(string));
-  }
-
-  testEncodeSlice();
-}
-
-void testEncodeSlice() {
-  var encoder = utf8.encoder;
-  String ascii = "ABCDE";
-  Expect.listEquals([0x41, 0x42, 0x43, 0x44, 0x45], encoder.convert(ascii));
-  Expect.listEquals([0x41, 0x42, 0x43, 0x44, 0x45], encoder.convert(ascii, 0));
-  Expect.listEquals(
-      [0x41, 0x42, 0x43, 0x44, 0x45], encoder.convert(ascii, 0, 5));
-  Expect.listEquals([0x42, 0x43, 0x44, 0x45], encoder.convert(ascii, 1));
-  Expect.listEquals([0x41, 0x42, 0x43, 0x44], encoder.convert(ascii, 0, 4));
-  Expect.listEquals([0x42, 0x43, 0x44], encoder.convert(ascii, 1, 4));
-
-  Expect.throws(() => encoder.convert(ascii, -1)); //    start < 0.
-  Expect.throws(() => encoder.convert(ascii, 6)); //     start > length
-  Expect.throws(() => encoder.convert(ascii, 0, -1)); // end < 0
-  Expect.throws(() => encoder.convert(ascii, 0, 6)); //  end > length
-  Expect.throws(() => encoder.convert(ascii, 3, 2)); //  end < start
-
-  var unicode = "\u0081\u0082\u1041\u{10101}";
-
-  Expect.listEquals(
-      [0xc2, 0x81, 0xc2, 0x82, 0xe1, 0x81, 0x81, 0xf0, 0x90, 0x84, 0x81],
-      encoder.convert(unicode));
-  Expect.listEquals(
-      [0xc2, 0x81, 0xc2, 0x82, 0xe1, 0x81, 0x81, 0xf0, 0x90, 0x84, 0x81],
-      encoder.convert(unicode, 0, unicode.length));
-  Expect.listEquals([0xc2, 0x82, 0xe1, 0x81, 0x81, 0xf0, 0x90, 0x84, 0x81],
-      encoder.convert(unicode, 1));
-  Expect.listEquals(
-      [0xc2, 0x82, 0xe1, 0x81, 0x81], encoder.convert(unicode, 1, 3));
-  // Split in the middle of a surrogate pair.
-  Expect.listEquals([0xc2, 0x82, 0xe1, 0x81, 0x81, 0xef, 0xbf, 0xbd],
-      encoder.convert(unicode, 1, 4));
-}
diff --git a/tests/lib_2/convert/utf8_test.dart b/tests/lib_2/convert/utf8_test.dart
deleted file mode 100644
index d92b0d6dff9..00000000000
--- a/tests/lib_2/convert/utf8_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:convert';
-import 'dart:typed_data' show Uint8List;
-import 'unicode_tests.dart';
-
-String decode(List<int> bytes) => new Utf8Decoder().convert(bytes);
-
-void main() {
-  for (var test in UNICODE_TESTS) {
-    List<int> bytes = test[0];
-    String expected = test[1];
-    Expect.stringEquals(expected, decode(bytes));
-    Expect.stringEquals(expected, decode(new Uint8List.fromList(bytes)));
-  }
-
-  testDecodeSlice();
-  testErrorOffset();
-}
-
-void testDecodeSlice() {
-  var decoder = utf8.decoder; // Doesn't allow malformed.
-
-  testAscii(List<int> ascii) {
-    Expect.equals("ABCDE", decoder.convert(ascii));
-    Expect.equals("ABCDE", decoder.convert(ascii, 0));
-    Expect.equals("ABCDE", decoder.convert(ascii, 0, ascii.length));
-    Expect.equals("CDE", decoder.convert(ascii, 2));
-    Expect.equals("BCD", decoder.convert(ascii, 1, 4));
-    Expect.equals("ABCD", decoder.convert(ascii, 0, 4));
-
-    Expect.throws(() => decoder.convert(ascii, -1)); //    start < 0.
-    Expect.throws(() => decoder.convert(ascii, 6)); //     start > length
-    Expect.throws(() => decoder.convert(ascii, 0, -1)); // end < 0
-    Expect.throws(() => decoder.convert(ascii, 0, 6)); // end > length
-    Expect.throws(() => decoder.convert(ascii, 3, 2)); // end < start
-  }
-
-  var ascii = [0x41, 0x42, 0x43, 0x44, 0x45];
-  testAscii(ascii);
-  testAscii(new Uint8List.fromList(ascii));
-
-  testUtf8(List<int> utf8) {
-    Expect.equals("\u0081\u0082\u1041", decoder.convert(utf8));
-    Expect.equals("\u0082\u1041", decoder.convert(utf8, 2));
-    Expect.equals("\u0081\u0082", decoder.convert(utf8, 0, 4));
-    Expect.equals("\u0082", decoder.convert(utf8, 2, 4));
-    Expect.throws(() => decoder.convert(utf8, 1));
-    Expect.throws(() => decoder.convert(utf8, 0, 1));
-    Expect.throws(() => decoder.convert(utf8, 2, 5));
-  }
-
-  var utf8bytes = [0xc2, 0x81, 0xc2, 0x82, 0xe1, 0x81, 0x81];
-  testUtf8(utf8bytes);
-  testUtf8(new Uint8List.fromList(utf8bytes));
-}
-
-void testErrorOffset() {
-  // Test that failed convert calls have an offset in the exception.
-  testExn(input, offset) {
-    Expect.throws(() {
-      utf8.decoder.convert(input);
-    }, (e) => e is FormatException && input == e.source && offset == e.offset);
-
-    var typed = new Uint8List.fromList(input);
-    Expect.throws(() {
-      utf8.decoder.convert(typed);
-    }, (e) => e is FormatException && typed == e.source && offset == e.offset);
-  }
-
-  // Bad encoding, points to first bad byte.
-  testExn([0x80, 0x00], 0);
-  testExn([0xC2, 0x00], 1);
-  testExn([0xE2, 0x00], 1);
-  testExn([0xE2, 0x80, 0x00], 2);
-  testExn([0xF2, 0x00], 1);
-  testExn([0xF2, 0x80, 0x00], 2);
-  testExn([0xF2, 0x80, 0x80, 0x00], 3);
-  testExn([0xF8, 0x00], 0);
-  // Short encoding, points to end.
-  testExn([0xC2], 1);
-  testExn([0xE2], 1);
-  testExn([0xE2, 0x80], 2);
-  testExn([0xF2], 1);
-  testExn([0xF2, 0x80], 2);
-  testExn([0xF2, 0x80, 0x80], 3);
-  // Overlong encoding, points to byte that gave enough information to conclude
-  // that it was overlong.
-  testExn([0xC0, 0x80], 0);
-  testExn([0xC1, 0xBF], 0);
-  testExn([0xE0, 0x80, 0x80], 1);
-  testExn([0xE0, 0x9F, 0xBF], 1);
-  testExn([0xF0, 0x80, 0x80, 0x80], 1);
-  testExn([0xF0, 0x8F, 0xBF, 0xBF], 1);
-  // Invalid character (value too large, over 0x10FFFF).
-  testExn([0xF4, 0x90, 0x80, 0x80], 1);
-  testExn([0xF7, 0xBF, 0xBF, 0xBF], 0);
-}
diff --git a/tests/lib_2/developer/inspect_test.dart b/tests/lib_2/developer/inspect_test.dart
deleted file mode 100644
index 80cf966af00..00000000000
--- a/tests/lib_2/developer/inspect_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:developer';
-import 'package:expect/expect.dart';
-
-class Point {
-  int x, y;
-  Point(this.x, this.y);
-}
-
-void main() {
-  var p_in = new Point(3, 4);
-  var p_out = inspect(p_in);
-  Expect.isTrue(identical(p_in, p_out));
-}
diff --git a/tests/lib_2/developer/post_event_test.dart b/tests/lib_2/developer/post_event_test.dart
deleted file mode 100644
index 612d7e6aa3b..00000000000
--- a/tests/lib_2/developer/post_event_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'dart:convert';
-import 'dart:async';
-import 'dart:developer';
-import 'package:expect/expect.dart';
-
-final protectedStreams = [
-  'VM',
-  'Isolate',
-  'Debug',
-  'GC',
-  '_Echo',
-  'HeapSnapshot',
-  'Logging',
-  'Timeline',
-  'Profiler',
-  '_aStreamThatStartsWithAnUnderScore'
-];
-
-main() {
-  for (final protectedStream in protectedStreams) {
-    Expect.throws(
-      () {
-        postEvent('theEvent', {'the': 'data'}, stream: protectedStream);
-      },
-      (_) => true,
-      'Should not allow posting to $protectedStream protected stream',
-    );
-  }
-
-  // The Extension stream is not protected so calling this should not fail
-  postEvent('theEvent', {'the': 'data'}, stream: 'Extension');
-
-  // Should be allowed to post to a non-protected custom stream
-  postEvent('theEvent', {'the': 'data'}, stream: 'someCustomStream');
-
-  // Should work with immutable map
-  postEvent('theEvent', const {'the': 'data'}, stream: 'someCustomStream');
-}
diff --git a/tests/lib_2/developer/timeline_recorders_test.dart b/tests/lib_2/developer/timeline_recorders_test.dart
deleted file mode 100644
index e0a82f0f45f..00000000000
--- a/tests/lib_2/developer/timeline_recorders_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// VMOptions=--timeline_streams=VM,Isolate,GC,Dart --timeline_recorder=endless
-/// VMOptions=--timeline_streams=VM,Isolate,GC,Dart --timeline_recorder=ring
-/// VMOptions=--timeline_streams=VM,Isolate,GC,Dart --timeline_recorder=startup
-/// VMOptions=--timeline_streams=VM,Isolate,GC,Dart --timeline_recorder=systrace
-
-import 'dart:developer';
-
-void main() {
-  Timeline.startSync('A');
-
-  Timeline.instantSync('B');
-
-  var task = new TimelineTask();
-  task.start('C');
-  task.instant('D');
-  task.finish();
-
-  Timeline.finishSync();
-}
diff --git a/tests/lib_2/developer/timeline_test.dart b/tests/lib_2/developer/timeline_test.dart
deleted file mode 100644
index 6e96e2a00eb..00000000000
--- a/tests/lib_2/developer/timeline_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:developer';
-import 'package:expect/expect.dart';
-
-void testUnbalancedStartFinish() {
-  Timeline.startSync('A');
-  Timeline.finishSync();
-
-  bool exceptionCaught = false;
-  try {
-    Timeline.finishSync();
-  } catch (e) {
-    exceptionCaught = true;
-  }
-  Expect.isTrue(exceptionCaught);
-}
-
-void main() {
-  testUnbalancedStartFinish();
-}
diff --git a/tests/lib_2/developer/user_tags_test.dart b/tests/lib_2/developer/user_tags_test.dart
deleted file mode 100644
index 16581bd4b71..00000000000
--- a/tests/lib_2/developer/user_tags_test.dart
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-
-// @dart = 2.9
-
-import 'dart:developer';
-import 'package:expect/expect.dart';
-
-// Test that the default tag is set.
-testDefault() {
-  Expect.isTrue(identical(UserTag.defaultTag, getCurrentTag()));
-}
-
-// Test that the label property matches the constructor.
-void testLabel() {
-  var label = 'Hello World';
-  var tag = new UserTag(label);
-  Expect.equals(label, tag.label);
-}
-
-// Test that we canonicalize UserTag by name.
-void testCanonicalize(tag1) {
-  var label = 'Global Tag';
-  var tag = new UserTag(label);
-  Expect.isTrue(identical(tag, tag1));
-  var defaultLabel = 'Default';
-  var defaultTag = new UserTag(defaultLabel);
-  Expect.isTrue(identical(UserTag.defaultTag, defaultTag));
-}
-
-// Test that we made the tag current.
-void testMakeCurrent(tag) {
-  tag.makeCurrent();
-  Expect.isTrue(identical(tag, getCurrentTag()));
-}
-
-// Test that we reach a limit of tags an exception is thrown.
-void testExhaust() {
-  var i = 0;
-  while (true) {
-    var label = i.toString();
-    var tag = new UserTag(label);
-    i++;
-  }
-}
-
-var callerTag = new UserTag('caller');
-var calleeTag = new UserTag('callee');
-
-void callee() {
-  var old = calleeTag.makeCurrent();
-  Expect.isTrue(identical(calleeTag, getCurrentTag()));
-  old.makeCurrent();
-}
-
-void testCallerPattern() {
-  Expect.isTrue(identical(UserTag.defaultTag, getCurrentTag()));
-  var old = callerTag.makeCurrent();
-  Expect.isTrue(identical(callerTag, getCurrentTag()));
-  callee();
-  Expect.isTrue(identical(callerTag, getCurrentTag()));
-  old.makeCurrent();
-  Expect.isTrue(identical(UserTag.defaultTag, getCurrentTag()));
-}
-
-main() {
-  testDefault();
-  testCallerPattern();
-  var label = 'Global Tag';
-  var tag = new UserTag(label);
-  testLabel();
-  testCanonicalize(tag);
-  for (var i = 0; i < 2000; i++) {
-    testMakeCurrent(tag);
-  }
-  Expect.throws(testExhaust);
-}
diff --git a/tests/lib_2/html/Ahem.ttf b/tests/lib_2/html/Ahem.ttf
deleted file mode 100644
index ac81cb03165..00000000000
Binary files a/tests/lib_2/html/Ahem.ttf and /dev/null differ
diff --git a/tests/lib_2/html/async_cancellingisolate.dart b/tests/lib_2/html/async_cancellingisolate.dart
deleted file mode 100644
index 50ce4186ed3..00000000000
--- a/tests/lib_2/html/async_cancellingisolate.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-
-// @dart = 2.9
-library async_cancellingisolate;
-
-import 'dart:async';
-import 'package:expect/minitest.dart';
-
-main(message, replyTo) {
-  var command = message.first;
-  expect(command, 'START');
-  var shot = false;
-  var oneshot;
-  var periodic;
-  periodic = new Timer.periodic(const Duration(milliseconds: 10), (timer) {
-    expect(shot, isFalse);
-    shot = true;
-    expect(timer, same(periodic));
-    periodic.cancel();
-    oneshot.cancel();
-    // Wait some more time to be sure callbacks won't be invoked any
-    // more.
-    new Timer(const Duration(milliseconds: 50), () {
-      replyTo.send('DONE');
-    });
-  });
-  // We launch the oneshot timer after the periodic timer. Otherwise a
-  // (very long) context switch could make this test flaky: assume the
-  // oneshot timer is created first and then there is a 30ms context switch.
-  // when the periodic timer is scheduled it would execute after the oneshot.
-  oneshot = new Timer(const Duration(milliseconds: 30), () {
-    fail('Should never be invoked');
-  });
-}
diff --git a/tests/lib_2/html/async_oneshot.dart b/tests/lib_2/html/async_oneshot.dart
deleted file mode 100644
index 55827b17b7d..00000000000
--- a/tests/lib_2/html/async_oneshot.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-
-// @dart = 2.9
-import 'dart:async';
-import 'package:expect/minitest.dart';
-
-main(message, replyTo) {
-  var command = message.first;
-  expect(command, 'START');
-  new Timer(const Duration(milliseconds: 10), () {
-    replyTo.send('DONE');
-  });
-}
diff --git a/tests/lib_2/html/async_periodictimer.dart b/tests/lib_2/html/async_periodictimer.dart
deleted file mode 100644
index 55c468ee93d..00000000000
--- a/tests/lib_2/html/async_periodictimer.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-
-// @dart = 2.9
-library async_periodictimer;
-
-import 'dart:async';
-import 'package:expect/minitest.dart';
-
-main(message, replyTo) {
-  var command = message.first;
-  expect(command, 'START');
-  int counter = 0;
-  new Timer.periodic(const Duration(milliseconds: 10), (timer) {
-    if (counter == 3) {
-      counter = 1024;
-      timer.cancel();
-      // Wait some more time to be sure callback won't be invoked any
-      // more.
-      new Timer(const Duration(milliseconds: 30), () {
-        replyTo.send('DONE');
-      });
-      return;
-    }
-    assert(counter < 3);
-    counter++;
-  });
-}
diff --git a/tests/lib_2/html/async_test.dart b/tests/lib_2/html/async_test.dart
deleted file mode 100644
index 7812c7c6940..00000000000
--- a/tests/lib_2/html/async_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-
-// @dart = 2.9
-library async_test;
-
-import 'package:async_helper/async_minitest.dart';
-
-import 'dart:async';
-import 'dart:isolate';
-import 'dart:html';
-
-import 'async_oneshot.dart' as oneshot_test show main;
-import 'async_periodictimer.dart' as periodictimer_test show main;
-import 'async_cancellingisolate.dart' as cancelling_test show main;
-
-oneshot(message) => oneshot_test.main(message.first, message.last);
-periodicTimerIsolate(message) =>
-    periodictimer_test.main(message.first, message.last);
-cancellingIsolate(message) => cancelling_test.main(message.first, message.last);
-
-main() {
-  test('one shot timer in pure isolate', () {
-    var response = new ReceivePort();
-    var remote = Isolate.spawn(oneshot, [
-      ['START'],
-      response.sendPort
-    ]);
-    expect(remote.then((_) => response.first), completion('DONE'));
-  });
-
-  test('periodic timer in pure isolate', () {
-    var response = new ReceivePort();
-    var remote = Isolate.spawn(periodicTimerIsolate, [
-      ['START'],
-      response.sendPort
-    ]);
-    expect(remote.then((_) => response.first), completion('DONE'));
-  });
-
-  test('cancellation in pure isolate', () {
-    var response = new ReceivePort();
-    var remote = Isolate.spawn(cancellingIsolate, [
-      ['START'],
-      response.sendPort
-    ]);
-    expect(remote.then((_) => response.first), completion('DONE'));
-  });
-}
diff --git a/tests/lib_2/html/audiobuffersourcenode_test.dart b/tests/lib_2/html/audiobuffersourcenode_test.dart
deleted file mode 100644
index fd79b01b250..00000000000
--- a/tests/lib_2/html/audiobuffersourcenode_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-
-// @dart = 2.9
-import 'dart:web_audio';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  group('supported', () {
-    test('supported', () {
-      expect(AudioContext.supported, isTrue);
-    });
-  });
-
-  group('functional', () {
-    test('createBuffer', () {
-      if (AudioContext.supported) {
-        var ctx = new AudioContext();
-        AudioBufferSourceNode node = ctx.createBufferSource();
-        expect(node is AudioBufferSourceNode, isTrue);
-        node.start(ctx.currentTime, 0, 2);
-        expect(node is AudioBufferSourceNode, isTrue);
-      }
-    });
-  });
-}
diff --git a/tests/lib_2/html/audiocontext_test.dart b/tests/lib_2/html/audiocontext_test.dart
deleted file mode 100644
index 396cf39f678..00000000000
--- a/tests/lib_2/html/audiocontext_test.dart
+++ /dev/null
@@ -1,170 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-import 'dart:async';
-import 'dart:html';
-import 'dart:typed_data';
-import 'dart:web_audio';
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/minitest.dart';
-
-main() {
-  var isAudioContext =
-      predicate((x) => x is AudioContext, 'is an AudioContext');
-
-  group('supported', () {
-    test('supported', () {
-      expect(AudioContext.supported, true);
-    });
-  });
-
-  group('functional', () {
-    var context;
-    if (AudioContext.supported) {
-      context = new AudioContext();
-    }
-
-    test('constructorTest', () {
-      if (AudioContext.supported) {
-        expect(context, isNotNull);
-        expect(context, isAudioContext);
-      }
-    });
-
-    test('audioRenames', () {
-      if (AudioContext.supported) {
-        GainNode gainNode = context.createGain();
-        gainNode.connectNode(context.destination);
-        expect(gainNode is GainNode, isTrue);
-
-        expect(context.createAnalyser() is AnalyserNode, isTrue);
-        expect(context.createChannelMerger() is AudioNode, isTrue);
-        expect(context.createChannelSplitter() is AudioNode, isTrue);
-        expect(context.createOscillator() is OscillatorNode, isTrue);
-        expect(context.createPanner() is PannerNode, isTrue);
-        expect(
-            context.createScriptProcessor(4096) is ScriptProcessorNode, isTrue);
-      }
-    });
-
-    // TODO(9322): This test times out.
-    /*
-    test('onAudioProcess', () {
-      if(AudioContext.supported) {
-        var completer = new Completer<bool>();
-        var context = new AudioContext();
-        var scriptProcessor = context.createScriptProcessor(1024, 1, 2);
-        scriptProcessor.connectNode(context.destination);
-        bool alreadyCalled = false;
-        scriptProcessor.onAudioProcess.listen((event) {
-          if (!alreadyCalled) {
-            completer.complete(true);
-          }
-          alreadyCalled = true;
-        });
-        return completer.future;
-      }
-    });
-    */
-
-    test('oscillatorTypes', () {
-      if (AudioContext.supported) {
-        OscillatorNode oscillator = context.createOscillator();
-        oscillator.connectNode(context.destination);
-
-        oscillator.type = 'sawtooth';
-        expect(oscillator.type, equals('sawtooth'));
-
-        oscillator.type = 'sine';
-        expect(oscillator.type, equals('sine'));
-
-        oscillator.type = 'square';
-        expect(oscillator.type, equals('square'));
-
-        oscillator.type = 'triangle';
-        expect(oscillator.type, equals('triangle'));
-
-        //expect(() => oscillator.type = 7, throws); Firefox does not throw, it
-        //simply ignores this value.
-        expect(oscillator.type, equals('triangle'));
-
-        // Firefox does not throw when it receives invalid values; it simply
-        // ignores them.
-        //expect(() => oscillator.type = ['heap object not a string'], throws);
-        expect(oscillator.type, equals('triangle'));
-      }
-    });
-
-    asyncTest(() async {
-      if (AudioContext.supported) {
-        final audioSourceUrl = "/root_dart/tests/lib_2/html/small.mp3";
-
-        Future<void> requestAudioDecode(
-            {bool triggerDecodeError: false,
-            DecodeSuccessCallback successCallback,
-            DecodeErrorCallback errorCallback}) async {
-          HttpRequest audioRequest = HttpRequest();
-          audioRequest.open("GET", audioSourceUrl, async: true);
-          audioRequest.responseType = "arraybuffer";
-          var completer = new Completer<void>();
-          audioRequest.onLoad.listen((_) {
-            ByteBuffer audioData = audioRequest.response;
-            if (triggerDecodeError) audioData = Uint8List.fromList([]).buffer;
-            context
-                .decodeAudioData(audioData, successCallback, errorCallback)
-                .then((_) {
-              completer.complete();
-            }).catchError((e) {
-              completer.completeError(e);
-            });
-          });
-          audioRequest.send();
-          return completer.future;
-        }
-
-        // Decode successfully without callback.
-        await requestAudioDecode();
-
-        // Decode successfully with callback. Use counter to make sure it's only
-        // called once.
-        var successCallbackCalled = 0;
-        await requestAudioDecode(
-            successCallback: (_) {
-              successCallbackCalled += 1;
-            },
-            errorCallback: (_) {});
-        expect(successCallbackCalled, 1);
-
-        // Fail decode without callback.
-        try {
-          await requestAudioDecode(triggerDecodeError: true);
-          fail('Expected decode failure.');
-        } catch (_) {}
-
-        // Fail decode with callback.
-        var errorCallbackCalled = 0;
-        try {
-          await requestAudioDecode(
-              triggerDecodeError: true,
-              successCallback: (_) {},
-              errorCallback: (_) {
-                errorCallbackCalled += 1;
-              });
-          fail('Expected decode failure.');
-        } catch (e) {
-          // Safari may return a null error. Assuming Safari is version >= 14.1,
-          // the Future should complete with a string error if the error
-          // callback never gets called.
-          if (errorCallbackCalled == 0) {
-            expect(e is String, true);
-          } else {
-            expect(errorCallbackCalled, 1);
-          }
-        }
-      }
-    });
-  });
-}
diff --git a/tests/lib_2/html/audioelement_test.dart b/tests/lib_2/html/audioelement_test.dart
deleted file mode 100644
index e438afb1290..00000000000
--- a/tests/lib_2/html/audioelement_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('constructorTest1', () {
-    var audio = new AudioElement();
-    expect(audio, isNotNull);
-    expect(audio is AudioElement, isTrue);
-  });
-
-  test('constructorTest2', () {
-    var audio = new AudioElement('IntentionallyMissingFileURL');
-    expect(audio, isNotNull);
-    expect(audio is AudioElement, isTrue);
-    expect(audio.src.contains('IntentionallyMissingFileURL'), isTrue);
-  });
-
-  test('canPlayTypeTest', () {
-    var audio = new AudioElement();
-    var canPlay = audio.canPlayType("audio/mp4");
-    expect(canPlay, isNotNull);
-    expect(canPlay is String, isTrue);
-  });
-}
diff --git a/tests/lib_2/html/b_element_test.dart b/tests/lib_2/html/b_element_test.dart
deleted file mode 100644
index 5083b759cc4..00000000000
--- a/tests/lib_2/html/b_element_test.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-main() {
-  new Element.tag('b');
-}
diff --git a/tests/lib_2/html/blob_constructor_test.dart b/tests/lib_2/html/blob_constructor_test.dart
deleted file mode 100644
index 6f17fd87b8f..00000000000
--- a/tests/lib_2/html/blob_constructor_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:typed_data';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('basic', () {
-    var b = new Blob([]);
-    expect(b.size, 0);
-  });
-
-  test('type1', () {
-    // OPTIONALS var b = new Blob(['Harry'], type: 'text');
-    var b = new Blob(['Harry'], 'text');
-    expect(b.size, 5);
-    expect(b.type, 'text');
-  });
-
-  test('endings1', () {
-    // OPTIONALS var b = new Blob(['A\nB\n'], endings: 'transparent');
-    var b = new Blob(['A\nB\n'], null, 'transparent');
-    expect(b.size, 4);
-  });
-
-  test('endings2', () {
-    // OPTIONALS var b = new Blob(['A\nB\n'], endings: 'native');
-    var b = new Blob(['A\nB\n'], null, 'native');
-    expect(b.size, predicate((x) => x == 4 || x == 6),
-        reason: "b.size should be 4 or 6");
-  });
-
-  test('twoStrings', () {
-    // OPTIONALS var b = new Blob(['123', 'xyz'], type: 'text/plain;charset=UTF-8');
-    var b = new Blob(['123', 'xyz'], 'text/plain;charset=UTF-8');
-    expect(b.size, 6);
-  });
-
-  test('fromBlob1', () {
-    var b1 = new Blob([]);
-    var b2 = new Blob([b1]);
-    expect(b2.size, 0);
-  });
-
-  test('fromBlob2', () {
-    var b1 = new Blob(['x']);
-    var b2 = new Blob([b1, b1]);
-    expect(b1.size, 1);
-    expect(b2.size, 2);
-  });
-
-  test('fromArrayBuffer', () {
-    var a = new Uint8List(100).buffer; // i.e. new ArrayBuffer(100);
-    var b = new Blob([a, a]);
-    expect(b.size, 200);
-  });
-}
diff --git a/tests/lib_2/html/cache_test.dart b/tests/lib_2/html/cache_test.dart
deleted file mode 100644
index 0200cf15305..00000000000
--- a/tests/lib_2/html/cache_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  group('supported', () {
-    test('supported', () {
-      expect(ApplicationCache.supported, isTrue);
-    });
-  });
-
-  group('ApplicationCache', () {
-    test('ApplicationCache', () {
-      var expectation = ApplicationCache.supported ? returnsNormally : throws;
-      expect(() {
-        ApplicationCache appCache = window.applicationCache;
-        expect(cacheStatusToString(appCache.status), "UNCACHED");
-      }, expectation);
-    });
-  });
-}
-
-String cacheStatusToString(int status) {
-  switch (status) {
-    case ApplicationCache.UNCACHED: // UNCACHED == 0
-      return 'UNCACHED';
-    case ApplicationCache.IDLE: // IDLE == 1
-      return 'IDLE';
-    case ApplicationCache.CHECKING: // CHECKING == 2
-      return 'CHECKING';
-    case ApplicationCache.DOWNLOADING: // DOWNLOADING == 3
-      return 'DOWNLOADING';
-    case ApplicationCache.UPDATEREADY: // UPDATEREADY == 4
-      return 'UPDATEREADY';
-    case ApplicationCache.OBSOLETE: // OBSOLETE == 5
-      return 'OBSOLETE';
-    default:
-      return 'UNKNOWN CACHE STATUS';
-  }
-  ;
-}
diff --git a/tests/lib_2/html/callback_list_test.dart b/tests/lib_2/html/callback_list_test.dart
deleted file mode 100644
index 1a90f169edd..00000000000
--- a/tests/lib_2/html/callback_list_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-
-// @dart = 2.9
-library callback_list_test;
-
-import 'dart:html';
-import 'dart:async';
-
-import 'package:expect/minitest.dart';
-
-var callbackDone = false;
-bool isCallbackDone() => callbackDone;
-
-Future waitUntilCallbackDone(bool test()) async {
-  var completer = new Completer();
-  check() {
-    if (test()) {
-      completer.complete();
-    } else {
-      new Timer(Duration.zero, check);
-    }
-  }
-
-  check();
-  return completer.future;
-}
-
-void main() async {
-  window.navigator.persistentStorage.requestQuota(1024 * 1024, _quotaHandler);
-
-  await waitUntilCallbackDone(isCallbackDone);
-  expect(true, isCallbackDone());
-}
-
-Future _quotaHandler(int byteCount) async {
-  FileSystem filesystem =
-      await window.requestFileSystem(1024 * 1024, persistent: true);
-  DirectoryEntry dir = await filesystem.root;
-  DirectoryReader dirReader = dir.createReader();
-  await dirReader.readEntries();
-  List<Entry> secondEntries = await dirReader.readEntries();
-  callbackDone = true;
-}
diff --git a/tests/lib_2/html/callbacks_test.dart b/tests/lib_2/html/callbacks_test.dart
deleted file mode 100644
index eae0b1e12f9..00000000000
--- a/tests/lib_2/html/callbacks_test.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-main() {
-  window.requestAnimationFrame((num time) => false);
-}
diff --git a/tests/lib_2/html/canvas_pixel_array_type_alias_test.dart b/tests/lib_2/html/canvas_pixel_array_type_alias_test.dart
deleted file mode 100644
index 8b511e95186..00000000000
--- a/tests/lib_2/html/canvas_pixel_array_type_alias_test.dart
+++ /dev/null
@@ -1,116 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:typed_data';
-
-import 'package:expect/minitest.dart';
-
-// We have aliased the legacy type CanvasPixelArray with the new type
-// Uint8ClampedArray by mapping the CanvasPixelArray type tag to
-// Uint8ClampedArray.  It is not a perfect match since CanvasPixelArray is
-// missing the ArrayBufferView members.  These should appear to be null.
-
-var inscrutable;
-
-main() {
-  inscrutable = (x) => x;
-
-  int width = 100;
-  int height = 100;
-
-  CanvasElement canvas = new CanvasElement(width: width, height: height);
-  document.body.append(canvas);
-
-  CanvasRenderingContext2D context = canvas.context2D;
-
-  group('basic', () {
-    test('CreateImageData', () {
-      ImageData image = context.createImageData(canvas.width, canvas.height);
-      List<int> data = image.data;
-      // It is legal for the dart2js compiler to believe the type of the native
-      //   ImageData.data and elides the check, so check the type explicitly:
-      expect(inscrutable(data) is List<int>, isTrue,
-          reason: 'canvas array type');
-
-      expect(data.length, 40000);
-      checkPixel(data, 0, [0, 0, 0, 0]);
-      checkPixel(data, width * height - 1, [0, 0, 0, 0]);
-
-      data[100] = 200;
-      expect(data[100], equals(200));
-    });
-  });
-
-  group('types1', () {
-    test('isList', () {
-      var data = context.createImageData(canvas.width, canvas.height).data;
-      expect(inscrutable(data) is List, true);
-    });
-
-    test('isListT_pos', () {
-      var data = context.createImageData(canvas.width, canvas.height).data;
-      expect(inscrutable(data) is List<int>, true);
-    });
-  });
-
-  group('types2', () {
-    test('isListT_neg', () {
-      var data = context.createImageData(canvas.width, canvas.height).data;
-      expect(inscrutable(data) is List<String>, false);
-    });
-
-    test('isUint8ClampedList', () {
-      var data = context.createImageData(canvas.width, canvas.height).data;
-      expect(inscrutable(data) is Uint8ClampedList, true);
-    });
-
-    test('consistent_isUint8ClampedList', () {
-      var data = context.createImageData(canvas.width, canvas.height).data;
-      // Static and dynamic values consistent?  Type inference should be able to
-      // constant-fold 'data is Uint8ClampedList' to 'true'.
-      expect(inscrutable(data) is Uint8ClampedList == data is Uint8ClampedList,
-          isTrue);
-    });
-
-    // TODO(sra): Why does this fail on Dartium? There are two types with the
-    // same print string:
-    //
-    //     Expected: ?:<Uint8ClampedList> Actual: ?:<Uint8ClampedList>
-    /*
-    test('runtimeType', () {
-      var data = context.createImageData(canvas.width, canvas.height).data;
-      expect(inscrutable(data).runtimeType, Uint8ClampedList);
-    });
-    */
-
-    test('consistent_runtimeType', () {
-      var data = context.createImageData(canvas.width, canvas.height).data;
-      expect(inscrutable(data).runtimeType == data.runtimeType, isTrue);
-    });
-  });
-
-  group('types2_runtimeTypeName', () {
-    test('runtimeTypeName', () {
-      var data = context.createImageData(canvas.width, canvas.height).data;
-      expect('${inscrutable(data).runtimeType}', 'Uint8ClampedList');
-    });
-  });
-
-  group('typed_data', () {
-    test('elementSizeInBytes', () {
-      var data = context.createImageData(canvas.width, canvas.height).data;
-      expect(inscrutable(data).elementSizeInBytes, 1);
-    });
-  });
-}
-
-void checkPixel(List<int> data, int offset, List<int> rgba) {
-  offset *= 4;
-  for (var i = 0; i < 4; ++i) {
-    expect(rgba[i], equals(data[offset + i]));
-  }
-}
diff --git a/tests/lib_2/html/canvas_test.dart b/tests/lib_2/html/canvas_test.dart
deleted file mode 100644
index 52ddd32d749..00000000000
--- a/tests/lib_2/html/canvas_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-
-// @dart = 2.9
-library CanvasTest;
-
-import 'dart:html';
-
-import 'package:async_helper/async_minitest.dart';
-
-main() {
-  CanvasElement canvas;
-  CanvasRenderingContext2D context;
-  int width = 100;
-  int height = 100;
-
-  canvas = new CanvasElement(width: width, height: height);
-  document.body.append(canvas);
-
-  context = canvas.context2D;
-
-  test('CreateImageData', () {
-    ImageData image = context.createImageData(canvas.width, canvas.height);
-    List<int> data = image.data;
-
-    expect(data.length, 40000);
-    checkPixel(data, 0, [0, 0, 0, 0]);
-    checkPixel(data, width * height - 1, [0, 0, 0, 0]);
-
-    data[100] = 200;
-    expect(data[100], equals(200));
-  });
-
-  test('toDataUrl', () {
-    var canvas = new CanvasElement(width: 100, height: 100);
-    var context = canvas.context2D;
-    context.fillStyle = 'red';
-    context.fill();
-
-    var url = canvas.toDataUrl();
-
-    var img = new ImageElement();
-    img.onLoad.listen(expectAsync((_) {
-      expect(img.complete, true);
-    }));
-    img.onError.listen((_) {
-      fail('URL failed to load.');
-    });
-    img.src = url;
-  });
-}
-
-void checkPixel(List<int> data, int offset, List<int> rgba) {
-  offset *= 4;
-  for (var i = 0; i < 4; ++i) {
-    expect(data[offset + i], equals(rgba[i]));
-  }
-}
diff --git a/tests/lib_2/html/canvasrendering/arc_test.dart b/tests/lib_2/html/canvasrendering/arc_test.dart
deleted file mode 100644
index ff393867c85..00000000000
--- a/tests/lib_2/html/canvasrendering/arc_test.dart
+++ /dev/null
@@ -1,105 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library canvas_rendering_context_2d_test;
-
-import 'dart:html';
-import 'dart:math';
-
-import 'canvas_rendering_util.dart';
-import 'package:expect/minitest.dart';
-
-main() {
-  setUp(setupFunc);
-  tearDown(tearDownFunc);
-
-  test('default arc should be clockwise', () {
-    context.beginPath();
-    final r = 10;
-
-    // Center of arc.
-    final cx = 20;
-    final cy = 20;
-    // Arc centered at (20, 20) with radius 10 will go clockwise
-    // from (20 + r, 20) to (20, 20 + r), which is 1/4 of a circle.
-    context.arc(cx, cy, r, 0, pi / 2);
-
-    context.strokeStyle = 'green';
-    context.lineWidth = 2;
-    context.stroke();
-
-    // Center should not be filled.
-    expectPixelUnfilled(cx, cy);
-
-    // (cx + r, cy) should be filled.
-    expectPixelFilled(cx + r, cy, true);
-    // (cx, cy + r) should be filled.
-    expectPixelFilled(cx, cy + r, true);
-    // (cx - r, cy) should be empty.
-    expectPixelFilled(cx - r, cy, false);
-    // (cx, cy - r) should be empty.
-    expectPixelFilled(cx, cy - r, false);
-
-    // (cx + r/SQRT2, cy + r/SQRT2) should be filled.
-    expectPixelFilled((cx + r / sqrt2).toInt(), (cy + r / sqrt2).toInt(), true);
-
-    // (cx - r/SQRT2, cy - r/SQRT2) should be empty.
-    expectPixelFilled(
-        (cx - r / sqrt2).toInt(), (cy + r / sqrt2).toInt(), false);
-
-    // (cx + r/SQRT2, cy + r/SQRT2) should be empty.
-    expectPixelFilled(
-        (cx - r / sqrt2).toInt(), (cy - r / sqrt2).toInt(), false);
-
-    // (cx - r/SQRT2, cy - r/SQRT2) should be empty.
-    expectPixelFilled(
-        (cx + r / sqrt2).toInt(), (cy - r / sqrt2).toInt(), false);
-  });
-
-  test('arc anticlockwise', () {
-    context.beginPath();
-    final r = 10;
-
-    // Center of arc.
-    final cx = 20;
-    final cy = 20;
-    // Arc centered at (20, 20) with radius 10 will go anticlockwise
-    // from (20 + r, 20) to (20, 20 + r), which is 3/4 of a circle.
-    // Because of the way arc work, when going anti-clockwise, the end points
-    // are not included, so small values are added to radius to make a little
-    // more than a 3/4 circle.
-    context.arc(cx, cy, r, .1, pi / 2 - .1, true);
-
-    context.strokeStyle = 'green';
-    context.lineWidth = 2;
-    context.stroke();
-
-    // Center should not be filled.
-    expectPixelUnfilled(cx, cy);
-
-    // (cx + r, cy) should be filled.
-    expectPixelFilled(cx + r, cy, true);
-    // (cx, cy + r) should be filled.
-    expectPixelFilled(cx, cy + r, true);
-    // (cx - r, cy) should be filled.
-    expectPixelFilled(cx - r, cy, true);
-    // (cx, cy - r) should be filled.
-    expectPixelFilled(cx, cy - r, true);
-
-    // (cx + r/SQRT2, cy + r/SQRT2) should be empty.
-    expectPixelFilled(
-        (cx + r / sqrt2).toInt(), (cy + r / sqrt2).toInt(), false);
-
-    // (cx - r/SQRT2, cy - r/SQRT2) should be filled.
-    expectPixelFilled((cx - r / sqrt2).toInt(), (cy + r / sqrt2).toInt(), true);
-
-    // (cx + r/SQRT2, cy + r/SQRT2) should be filled.
-    expectPixelFilled((cx - r / sqrt2).toInt(), (cy - r / sqrt2).toInt(), true);
-
-    // (cx - r/SQRT2, cy - r/SQRT2) should be filled.
-    expectPixelFilled((cx + r / sqrt2).toInt(), (cy - r / sqrt2).toInt(), true);
-  });
-}
diff --git a/tests/lib_2/html/canvasrendering/canvas_rendering_util.dart b/tests/lib_2/html/canvasrendering/canvas_rendering_util.dart
deleted file mode 100644
index 09e8984cd09..00000000000
--- a/tests/lib_2/html/canvasrendering/canvas_rendering_util.dart
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library canvas_rendering_context_2d_test;
-
-import 'dart:html';
-import 'dart:math';
-
-import 'package:expect/minitest.dart';
-
-// Some rounding errors in the browsers.
-checkPixel(List<int> pixel, List<int> expected) {
-  expect(pixel[0], closeTo(expected[0], 2));
-  expect(pixel[1], closeTo(expected[1], 2));
-  expect(pixel[2], closeTo(expected[2], 2));
-  expect(pixel[3], closeTo(expected[3], 2));
-}
-
-var canvas;
-var context;
-var otherCanvas;
-var otherContext;
-var video;
-
-void createCanvas() {
-  canvas = new CanvasElement();
-  canvas.width = 100;
-  canvas.height = 100;
-
-  context = canvas.context2D;
-}
-
-void createOtherCanvas() {
-  otherCanvas = new CanvasElement();
-  otherCanvas.width = 10;
-  otherCanvas.height = 10;
-  otherContext = otherCanvas.context2D;
-  otherContext.fillStyle = "red";
-  otherContext.fillRect(0, 0, otherCanvas.width, otherCanvas.height);
-}
-
-void setupFunc() {
-  createCanvas();
-  createOtherCanvas();
-  video = new VideoElement();
-}
-
-void tearDownFunc() {
-  canvas = null;
-  context = null;
-  otherCanvas = null;
-  otherContext = null;
-  video = null;
-}
-
-List<int> readPixel(int x, int y) {
-  var imageData = context.getImageData(x, y, 1, 1);
-  return imageData.data;
-}
-
-/// Returns true if the pixel has some data in it, false otherwise.
-bool isPixelFilled(int x, int y) => readPixel(x, y).any((p) => p != 0);
-
-String pixelDataToString(List<int> data, int x, int y) {
-  return '[${data.join(", ")}]';
-}
-
-String _filled(bool v) => v ? "filled" : "unfilled";
-
-void expectPixelFilled(int x, int y, [bool filled = true]) {
-  expect(isPixelFilled(x, y), filled,
-      reason: 'Pixel at ($x, $y) was expected to'
-          ' be: <${_filled(filled)}> but was: <${_filled(!filled)}> with data: '
-          '${pixelDataToString(readPixel(x, y), x, y)}');
-}
-
-void expectPixelUnfilled(int x, int y) {
-  expectPixelFilled(x, y, false);
-}
diff --git a/tests/lib_2/html/canvasrendering/draw_image_canvas_element_test.dart b/tests/lib_2/html/canvasrendering/draw_image_canvas_element_test.dart
deleted file mode 100644
index d7117d96935..00000000000
--- a/tests/lib_2/html/canvasrendering/draw_image_canvas_element_test.dart
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library canvas_rendering_context_2d_test;
-
-import 'dart:html';
-import 'dart:math';
-
-import 'canvas_rendering_util.dart';
-import 'package:expect/minitest.dart';
-
-main() {
-  setUp(setupFunc);
-  tearDown(tearDownFunc);
-
-  test('with 3 params', () {
-    // Draw an image to the canvas from a canvas element.
-    context.drawImage(otherCanvas, 50, 50);
-
-    expectPixelFilled(50, 50);
-    expectPixelFilled(55, 55);
-    expectPixelFilled(59, 59);
-    expectPixelUnfilled(60, 60);
-    expectPixelUnfilled(0, 0);
-    expectPixelUnfilled(70, 70);
-  });
-  test('with 5 params', () {
-    // Draw an image to the canvas from a canvas element.
-    context.drawImageToRect(otherCanvas, new Rectangle(50, 50, 20, 20));
-
-    expectPixelFilled(50, 50);
-    expectPixelFilled(55, 55);
-    expectPixelFilled(59, 59);
-    expectPixelFilled(60, 60);
-    expectPixelFilled(69, 69);
-    expectPixelUnfilled(70, 70);
-    expectPixelUnfilled(0, 0);
-    expectPixelUnfilled(80, 80);
-  });
-  test('with 9 params', () {
-    // Draw an image to the canvas from a canvas element.
-    otherContext.fillStyle = "blue";
-    otherContext.fillRect(5, 5, 5, 5);
-    context.drawImageToRect(otherCanvas, new Rectangle(50, 50, 20, 20),
-        sourceRect: new Rectangle(2, 2, 6, 6));
-
-    checkPixel(readPixel(50, 50), [255, 0, 0, 255]);
-    checkPixel(readPixel(55, 55), [255, 0, 0, 255]);
-    checkPixel(readPixel(60, 50), [255, 0, 0, 255]);
-    checkPixel(readPixel(65, 65), [0, 0, 255, 255]);
-    checkPixel(readPixel(69, 69), [0, 0, 255, 255]);
-    expectPixelFilled(50, 50);
-    expectPixelFilled(55, 55);
-    expectPixelFilled(59, 59);
-    expectPixelFilled(60, 60);
-    expectPixelFilled(69, 69);
-    expectPixelUnfilled(70, 70);
-    expectPixelUnfilled(0, 0);
-    expectPixelUnfilled(80, 80);
-  });
-
-  test('createImageData', () {
-    var imageData = context.createImageData(15, 15);
-    expect(imageData.width, 15);
-    expect(imageData.height, 15);
-
-    var other = context.createImageDataFromImageData(imageData);
-    expect(other.width, 15);
-    expect(other.height, 15);
-  });
-
-  test('createPattern', () {
-    var pattern = context.createPattern(new CanvasElement(), '');
-    //var pattern2 = context.createPatternFromImage(new ImageElement(), '');
-  });
-}
diff --git a/tests/lib_2/html/canvasrendering/draw_image_video_element_test.dart b/tests/lib_2/html/canvasrendering/draw_image_video_element_test.dart
deleted file mode 100644
index e8304d14c4c..00000000000
--- a/tests/lib_2/html/canvasrendering/draw_image_video_element_test.dart
+++ /dev/null
@@ -1,225 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library canvas_rendering_context_2d_test;
-
-import 'dart:async';
-import 'dart:html';
-import 'dart:math';
-
-import 'canvas_rendering_util.dart';
-import 'package:async_helper/async_helper.dart';
-
-// These videos and base64 strings are the same video, representing 2
-// frames of 8x8 red pixels.
-// The videos were created with:
-//   convert -size 8x8 xc:red blank1.jpg
-//   convert -size 8x8 xc:red blank2.jpg
-//   avconv -f image2  -i "blank%d.jpg" -c:v libx264 small.mp4
-//   avconv -i small.mp4 small.webm
-//   python -m base64 -e small.mp4
-//   python -m base64 -e small.webm
-var mp4VideoUrl = '/root_dart/tests/lib_2/html/small.mp4';
-var webmVideoUrl = '/root_dart/tests/lib_2/html/small.webm';
-var mp4VideoDataUrl =
-    'data:video/mp4;base64,AAAAIGZ0eXBpc29tAAACAGlzb21pc28yYXZjMW1wNDEAAA'
-    'AIZnJlZQAAAsdtZGF0AAACmwYF//+X3EXpvebZSLeWLNgg2SPu73gyNjQgLSBjb3JlID'
-    'EyMCByMjE1MSBhM2Y0NDA3IC0gSC4yNjQvTVBFRy00IEFWQyBjb2RlYyAtIENvcHlsZW'
-    'Z0IDIwMDMtMjAxMSAtIGh0dHA6Ly93d3cudmlkZW9sYW4ub3JnL3gyNjQuaHRtbCAtIG'
-    '9wdGlvbnM6IGNhYmFjPTEgcmVmPTMgZGVibG9jaz0xOjA6MCBhbmFseXNlPTB4MToweD'
-    'ExMSBtZT1oZXggc3VibWU9NyBwc3k9MSBwc3lfcmQ9MS4wMDowLjAwIG1peGVkX3JlZj'
-    '0wIG1lX3JhbmdlPTE2IGNocm9tYV9tZT0xIHRyZWxsaXM9MSA4eDhkY3Q9MCBjcW09MC'
-    'BkZWFkem9uZT0yMSwxMSBmYXN0X3Bza2lwPTEgY2hyb21hX3FwX29mZnNldD0tMiB0aH'
-    'JlYWRzPTE4IHNsaWNlZF90aHJlYWRzPTAgbnI9MCBkZWNpbWF0ZT0xIGludGVybGFjZW'
-    'Q9MCBibHVyYXlfY29tcGF0PTAgY29uc3RyYWluZWRfaW50cmE9MCBiZnJhbWVzPTMgYl'
-    '9weXJhbWlkPTAgYl9hZGFwdD0xIGJfYmlhcz0wIGRpcmVjdD0xIHdlaWdodGI9MCBvcG'
-    'VuX2dvcD0xIHdlaWdodHA9MiBrZXlpbnQ9MjUwIGtleWludF9taW49MjUgc2NlbmVjdX'
-    'Q9NDAgaW50cmFfcmVmcmVzaD0wIHJjX2xvb2thaGVhZD00MCByYz1jcmYgbWJ0cmVlPT'
-    'EgY3JmPTUxLjAgcWNvbXA9MC42MCBxcG1pbj0wIHFwbWF4PTY5IHFwc3RlcD00IGlwX3'
-    'JhdGlvPTEuMjUgYXE9MToxLjAwAIAAAAARZYiEB//3aoK5/tP9+8yeuIEAAAAHQZoi2P'
-    '/wgAAAAzxtb292AAAAbG12aGQAAAAAAAAAAAAAAAAAAAPoAAAAUAABAAABAAAAAAAAAA'
-    'AAAAAAAQAAAAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAA'
-    'AAAAAAAAAAAAAAAAAAAAACAAAAGGlvZHMAAAAAEICAgAcAT/////7/AAACUHRyYWsAAA'
-    'BcdGtoZAAAAA8AAAAAAAAAAAAAAAEAAAAAAAAAUAAAAAAAAAAAAAAAAAAAAAAAAQAAAA'
-    'AAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAEAAAAAACAAAAAgAAAAAACRlZHRzAAAAHG'
-    'Vsc3QAAAAAAAAAAQAAAFAAAAABAAEAAAAAAchtZGlhAAAAIG1kaGQAAAAAAAAAAAAAAA'
-    'AAAAAZAAAAAlXEAAAAAAAtaGRscgAAAAAAAAAAdmlkZQAAAAAAAAAAAAAAAFZpZGVvSG'
-    'FuZGxlcgAAAAFzbWluZgAAABR2bWhkAAAAAQAAAAAAAAAAAAAAJGRpbmYAAAAcZHJlZg'
-    'AAAAAAAAABAAAADHVybCAAAAABAAABM3N0YmwAAACXc3RzZAAAAAAAAAABAAAAh2F2Yz'
-    'EAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAACAAIAEgAAABIAAAAAAAAAAEAAAAAAAAAAA'
-    'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAY//8AAAAxYXZjQwFNQAr/4QAYZ01ACuiPyy'
-    '4C2QAAAwABAAADADIPEiUSAQAGaOvAZSyAAAAAGHN0dHMAAAAAAAAAAQAAAAIAAAABAA'
-    'AAFHN0c3MAAAAAAAAAAQAAAAEAAAAYY3R0cwAAAAAAAAABAAAAAgAAAAEAAAAcc3RzYw'
-    'AAAAAAAAABAAAAAQAAAAEAAAABAAAAHHN0c3oAAAAAAAAAAAAAAAIAAAK0AAAACwAAAB'
-    'hzdGNvAAAAAAAAAAIAAAAwAAAC5AAAAGB1ZHRhAAAAWG1ldGEAAAAAAAAAIWhkbHIAAA'
-    'AAAAAAAG1kaXJhcHBsAAAAAAAAAAAAAAAAK2lsc3QAAAAjqXRvbwAAABtkYXRhAAAAAQ'
-    'AAAABMYXZmNTMuMjEuMQ==';
-var webmVideoDataUrl =
-    'data:video/webm;base64,GkXfowEAAAAAAAAfQoaBAUL3gQFC8oEEQvOBCEKChHdlY'
-    'm1Ch4ECQoWBAhhTgGcBAAAAAAAB/hFNm3RALE27i1OrhBVJqWZTrIHfTbuMU6uEFlSua'
-    '1OsggEsTbuMU6uEHFO7a1OsggHk7AEAAAAAAACkAAAAAAAAAAAAAAAAAAAAAAAAAAAAA'
-    'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA'
-    'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA'
-    'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAVSalmAQAAAAAAA'
-    'EEq17GDD0JATYCLTGF2ZjUzLjIxLjFXQYtMYXZmNTMuMjEuMXOkkJatuHwTJ7cvFLSzB'
-    'Smxbp5EiYhAVAAAAAAAABZUrmsBAAAAAAAAR64BAAAAAAAAPteBAXPFgQGcgQAitZyDd'
-    'W5khoVWX1ZQOIOBASPjg4QCYloA4AEAAAAAAAASsIEIuoEIVLCBCFS6gQhUsoEDH0O2d'
-    'QEAAAAAAABZ54EAo72BAACA8AIAnQEqCAAIAABHCIWFiIWEiAICAnWqA/gD+gINTRgA/'
-    'v0hRf/kb+PnRv/I4//8WE8DijI//FRAo5WBACgAsQEAARAQABgAGFgv9AAIAAAcU7trA'
-    'QAAAAAAAA67jLOBALeH94EB8YIBfw==';
-
-Future testWithThreeParams() async {
-  setupFunc();
-
-  video.onError.listen((_) {
-    throw ('URL failed to load.');
-  });
-  if (video.canPlayType('video/webm; codecs="vp8.0, vorbis"', '') != '') {
-    video.src = webmVideoUrl;
-  } else if (video.canPlayType(
-          'video/mp4; codecs="avc1.4D401E, mp4a.40.2"', null) !=
-      '') {
-    video.src = mp4VideoUrl;
-  } else {
-    window.console.log('Video is not supported on this system.');
-  }
-
-  // Without user interaction, playing the video requires autoplay to be enabled
-  // and autoplay can only be enabled if muted. We loop the video so there is
-  // always an active frame that can be drawn.
-  video.loop = true;
-  video.muted = true;
-  video.autoplay = true;
-  await video.play();
-  context.drawImage(video, 50, 50);
-
-  expectPixelFilled(50, 50);
-  expectPixelFilled(54, 54);
-  expectPixelFilled(57, 57);
-  expectPixelUnfilled(58, 58);
-  expectPixelUnfilled(0, 0);
-  expectPixelUnfilled(70, 70);
-  tearDownFunc();
-}
-
-Future testWithFiveParams() async {
-  setupFunc();
-
-  video.onError.listen((_) {
-    throw ('URL failed to load.');
-  });
-
-  if (video.canPlayType('video/webm; codecs="vp8.0, vorbis"', '') != '') {
-    video.src = webmVideoUrl;
-  } else if (video.canPlayType(
-          'video/mp4; codecs="avc1.4D401E, mp4a.40.2"', null) !=
-      '') {
-    video.src = mp4VideoUrl;
-  } else {
-    // TODO(amouravski): Better fallback?
-    window.console.log('Video is not supported on this system.');
-  }
-
-  video.loop = true;
-  video.muted = true;
-  video.autoplay = true;
-  await video.play();
-  context.drawImageToRect(video, new Rectangle(50, 50, 20, 20));
-
-  expectPixelFilled(50, 50);
-  expectPixelFilled(55, 55);
-  expectPixelFilled(59, 59);
-  expectPixelFilled(60, 60);
-  expectPixelFilled(69, 69);
-  expectPixelUnfilled(70, 70);
-  expectPixelUnfilled(0, 0);
-  expectPixelUnfilled(80, 80);
-  tearDownFunc();
-}
-
-Future testWithNineParams() async {
-  setupFunc();
-
-  video.onError.listen((_) {
-    throw ('URL failed to load.');
-  });
-
-  if (video.canPlayType('video/webm; codecs="vp8.0, vorbis"', '') != '') {
-    video.src = webmVideoUrl;
-  } else if (video.canPlayType(
-          'video/mp4; codecs="avc1.4D401E, mp4a.40.2"', null) !=
-      '') {
-    video.src = mp4VideoUrl;
-  } else {
-    // TODO(amouravski): Better fallback?
-    window.console.log('Video is not supported on this system.');
-  }
-
-  video.loop = true;
-  video.muted = true;
-  video.autoplay = true;
-  await video.play();
-  context.drawImageToRect(video, new Rectangle(50, 50, 20, 20),
-      sourceRect: new Rectangle(2, 2, 6, 6));
-
-  expectPixelFilled(50, 50);
-  expectPixelFilled(55, 55);
-  expectPixelFilled(59, 59);
-  expectPixelFilled(60, 60);
-  expectPixelFilled(69, 69);
-  expectPixelUnfilled(70, 70);
-  expectPixelUnfilled(0, 0);
-  expectPixelUnfilled(80, 80);
-  tearDownFunc();
-}
-
-Future testDataUrlWithNineParams() async {
-  setupFunc();
-
-  video = new VideoElement();
-  canvas = new CanvasElement();
-
-  video.onError.listen((_) {
-    throw ('URL failed to load.');
-  });
-
-  if (video.canPlayType('video/webm; codecs="vp8.0, vorbis"', '') != '') {
-    video.src = webmVideoDataUrl;
-  } else if (video.canPlayType(
-          'video/mp4; codecs="avc1.4D401E, mp4a.40.2"', null) !=
-      '') {
-    video.src = mp4VideoDataUrl;
-  } else {
-    // TODO(amouravski): Better fallback?
-    window.console.log('Video is not supported on this system.');
-  }
-
-  video.loop = true;
-  video.muted = true;
-  video.autoplay = true;
-  await video.play();
-  context.drawImageToRect(video, new Rectangle(50, 50, 20, 20),
-      sourceRect: new Rectangle(2, 2, 6, 6));
-
-  expectPixelFilled(50, 50);
-  expectPixelFilled(55, 55);
-  expectPixelFilled(59, 59);
-  expectPixelFilled(60, 60);
-  expectPixelFilled(69, 69);
-  expectPixelUnfilled(70, 70);
-  expectPixelUnfilled(0, 0);
-  expectPixelUnfilled(80, 80);
-  tearDownFunc();
-}
-
-main() {
-  asyncTest(() async {
-    await testWithThreeParams();
-    await testWithFiveParams();
-    await testWithNineParams();
-    await testDataUrlWithNineParams();
-  });
-}
diff --git a/tests/lib_2/html/canvasrendering/fill_text_test.dart b/tests/lib_2/html/canvasrendering/fill_text_test.dart
deleted file mode 100644
index ad9381fa3fe..00000000000
--- a/tests/lib_2/html/canvasrendering/fill_text_test.dart
+++ /dev/null
@@ -1,87 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library canvas_rendering_context_2d_test;
-
-import 'dart:html';
-import 'dart:math';
-
-import 'canvas_rendering_util.dart';
-import 'package:expect/minitest.dart';
-
-main() {
-  setUp(setupFunc);
-  tearDown(tearDownFunc);
-
-  final x = 20;
-  final y = 20;
-
-  test('without maxWidth', () {
-    context.font = '40pt Garamond';
-    context.fillStyle = 'blue';
-
-    // Draw a blue box.
-    context.fillText('█', x, y);
-
-    var width = context.measureText('█').width.ceil();
-
-    checkPixel(readPixel(x, y), [0, 0, 255, 255]);
-    checkPixel(readPixel(x + 10, y), [0, 0, 255, 255]);
-
-    expectPixelUnfilled(x - 10, y);
-    expectPixelFilled(x, y);
-    expectPixelFilled(x + 10, y);
-
-    // The box does not draw after `width` pixels.
-    // Check -2 rather than -1 because this seems
-    // to run into a rounding error on Mac bots.
-    expectPixelFilled(x + width - 2, y);
-    expectPixelUnfilled(x + width + 1, y);
-  });
-
-  test('with maxWidth null', () {
-    context.font = '40pt Garamond';
-    context.fillStyle = 'blue';
-
-    // Draw a blue box with null maxWidth.
-    context.fillText('█', x, y, null);
-
-    var width = context.measureText('█').width.ceil();
-
-    checkPixel(readPixel(x, y), [0, 0, 255, 255]);
-    checkPixel(readPixel(x + 10, y), [0, 0, 255, 255]);
-
-    expectPixelUnfilled(x - 10, y);
-    expectPixelFilled(x, y);
-    expectPixelFilled(x + 10, y);
-
-    // The box does not draw after `width` pixels.
-    // Check -2 rather than -1 because this seems
-    // to run into a rounding error on Mac bots.
-    expectPixelFilled(x + width - 2, y);
-    expectPixelUnfilled(x + width + 1, y);
-  });
-
-  test('with maxWidth defined', () {
-    context.font = '40pt Garamond';
-    context.fillStyle = 'blue';
-
-    final maxWidth = 20;
-
-    // Draw a blue box that's at most 20 pixels wide.
-    context.fillText('█', x, y, maxWidth);
-
-    checkPixel(readPixel(x, y), [0, 0, 255, 255]);
-    checkPixel(readPixel(x + 10, y), [0, 0, 255, 255]);
-
-    // The box does not draw after 20 pixels.
-    expectPixelUnfilled(x - 10, y);
-    expectPixelUnfilled(x + maxWidth + 1, y);
-    expectPixelUnfilled(x + maxWidth + 20, y);
-    expectPixelFilled(x, y);
-    expectPixelFilled(x + 10, y);
-  });
-}
diff --git a/tests/lib_2/html/canvasrendering/image_element_test.dart b/tests/lib_2/html/canvasrendering/image_element_test.dart
deleted file mode 100644
index c5ee1d14ca5..00000000000
--- a/tests/lib_2/html/canvasrendering/image_element_test.dart
+++ /dev/null
@@ -1,110 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library canvas_rendering_context_2d_test;
-
-import 'dart:async';
-import 'dart:html';
-import 'dart:math';
-
-import 'canvas_rendering_util.dart';
-import 'package:async_helper/async_helper.dart';
-
-Future testWithThreeParams() async {
-  setupFunc();
-  // Draw an image to the canvas from an image element.
-  var dataUrl = otherCanvas.toDataUrl('image/gif');
-  var img = new ImageElement();
-
-  var loadedFuture = img.onLoad.first;
-  img.onError.listen((_) {
-    throw ('URL failed to load.');
-  });
-  img.src = dataUrl;
-
-  await loadedFuture;
-  context.drawImage(img, 50, 50);
-
-  expectPixelFilled(50, 50);
-  expectPixelFilled(55, 55);
-  expectPixelFilled(59, 59);
-  expectPixelUnfilled(60, 60);
-  expectPixelUnfilled(0, 0);
-  expectPixelUnfilled(70, 70);
-  tearDownFunc();
-}
-
-Future testWithFiveParams() async {
-  setupFunc();
-  // Draw an image to the canvas from an image element and scale it.
-  var dataUrl = otherCanvas.toDataUrl('image/gif');
-  var img = new ImageElement();
-
-  var loadedFuture = img.onLoad.first;
-  img.onError.listen((_) {
-    throw ('URL failed to load.');
-  });
-  img.src = dataUrl;
-
-  await loadedFuture;
-  context.drawImageToRect(img, new Rectangle(50, 50, 20, 20));
-
-  expectPixelFilled(50, 50);
-  expectPixelFilled(55, 55);
-  expectPixelFilled(59, 59);
-  expectPixelFilled(60, 60);
-  expectPixelFilled(69, 69);
-  expectPixelUnfilled(70, 70);
-  expectPixelUnfilled(0, 0);
-  expectPixelUnfilled(80, 80);
-  tearDownFunc();
-}
-
-Future testWithNineParams() async {
-  setupFunc();
-  // Draw an image to the canvas from an image element and scale it.
-  otherContext.fillStyle = "blue";
-  otherContext.fillRect(5, 5, 5, 5);
-  var dataUrl = otherCanvas.toDataUrl('image/gif');
-  var img = new ImageElement();
-
-  var loadedFuture = img.onLoad.first;
-  img.onError.listen((_) {
-    throw ('URL failed to load.');
-  });
-  img.src = dataUrl;
-
-  await loadedFuture;
-  // This will take a 6x6 square from the first canvas from position 2,2
-  // and then scale it to a 20x20 square and place it to the second
-  // canvas at 50,50.
-  context.drawImageToRect(img, new Rectangle(50, 50, 20, 20),
-      sourceRect: new Rectangle(2, 2, 6, 6));
-
-  checkPixel(readPixel(50, 50), [255, 0, 0, 255]);
-  checkPixel(readPixel(55, 55), [255, 0, 0, 255]);
-  checkPixel(readPixel(60, 50), [255, 0, 0, 255]);
-  checkPixel(readPixel(65, 65), [0, 0, 255, 255]);
-  checkPixel(readPixel(69, 69), [0, 0, 255, 255]);
-
-  expectPixelFilled(50, 50);
-  expectPixelFilled(55, 55);
-  expectPixelFilled(59, 59);
-  expectPixelFilled(60, 60);
-  expectPixelFilled(69, 69);
-  expectPixelUnfilled(70, 70);
-  expectPixelUnfilled(0, 0);
-  expectPixelUnfilled(80, 80);
-  tearDownFunc();
-}
-
-main() {
-  asyncTest(() async {
-    await testWithThreeParams();
-    await testWithFiveParams();
-    await testWithNineParams();
-  });
-}
diff --git a/tests/lib_2/html/canvasrendering/pixel_manipulation_test.dart b/tests/lib_2/html/canvasrendering/pixel_manipulation_test.dart
deleted file mode 100644
index 24e9e45ecd2..00000000000
--- a/tests/lib_2/html/canvasrendering/pixel_manipulation_test.dart
+++ /dev/null
@@ -1,173 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library canvas_rendering_context_2d_test;
-
-import 'dart:html';
-import 'dart:math';
-
-import 'canvas_rendering_util.dart';
-import 'package:expect/minitest.dart';
-
-main() {
-  setUp(setupFunc);
-  tearDown(tearDownFunc);
-
-  test('setFillColorRgb', () {
-    context.setFillColorRgb(255, 0, 255, 1);
-    context.fillRect(0, 0, canvas.width, canvas.height);
-    expect(readPixel(2, 2), [255, 0, 255, 255]);
-  });
-
-  test('setFillColorHsl hue', () {
-    context.setFillColorHsl(0, 100, 50);
-    context.fillRect(0, 0, canvas.width, canvas.height);
-    checkPixel(readPixel(2, 2), [255, 0, 0, 255]);
-  });
-
-  test('setFillColorHsl hue 2', () {
-    context.setFillColorHsl(240, 100, 50);
-    context.fillRect(0, 0, canvas.width, canvas.height);
-    checkPixel(readPixel(2, 2), [0, 0, 255, 255]);
-  });
-
-  test('setFillColorHsl sat', () {
-    context.setFillColorHsl(0, 0, 50);
-    context.fillRect(0, 0, canvas.width, canvas.height);
-    checkPixel(readPixel(2, 2), [127, 127, 127, 255]);
-  });
-
-  test('setStrokeColorRgb', () {
-    context.setStrokeColorRgb(255, 0, 255, 1);
-    context.lineWidth = 10;
-    context.strokeRect(0, 0, canvas.width, canvas.height);
-    expect(readPixel(2, 2), [255, 0, 255, 255]);
-  });
-
-  test('setStrokeColorHsl hue', () {
-    context.setStrokeColorHsl(0, 100, 50);
-    context.lineWidth = 10;
-    context.strokeRect(0, 0, canvas.width, canvas.height);
-    expect(readPixel(2, 2), [255, 0, 0, 255]);
-  });
-
-  test('setStrokeColorHsl hue 2', () {
-    context.setStrokeColorHsl(240, 100, 50);
-    context.lineWidth = 10;
-    context.strokeRect(0, 0, canvas.width, canvas.height);
-    expect(readPixel(2, 2), [0, 0, 255, 255]);
-  });
-
-  test('setStrokeColorHsl sat', () {
-    context.setStrokeColorHsl(0, 0, 50);
-    context.lineWidth = 10;
-    context.strokeRect(0, 0, canvas.width, canvas.height);
-    checkPixel(readPixel(2, 2), [127, 127, 127, 255]);
-  });
-
-  test('fillStyle', () {
-    context.fillStyle = "red";
-    context.fillRect(0, 0, canvas.width, canvas.height);
-    checkPixel(readPixel(2, 2), [255, 0, 0, 255]);
-  });
-
-  test('strokeStyle', () {
-    context.strokeStyle = "blue";
-    context.lineWidth = 10;
-    context.strokeRect(0, 0, canvas.width, canvas.height);
-    expect(readPixel(2, 2), [0, 0, 255, 255]);
-  });
-
-  test('fillStyle linearGradient', () {
-    var gradient = context.createLinearGradient(0, 0, 20, 20);
-    gradient.addColorStop(0, 'red');
-    gradient.addColorStop(1, 'blue');
-    context.fillStyle = gradient;
-    context.fillRect(0, 0, canvas.width, canvas.height);
-    expect(context.fillStyle is CanvasGradient, isTrue);
-  });
-
-  test('putImageData', () {
-    context.fillStyle = 'green';
-    context.fillRect(0, 0, canvas.width, canvas.height);
-
-    ImageData expectedData = context.getImageData(0, 0, 10, 10);
-    expectedData.data[0] = 25;
-    expectedData.data[1] = 65;
-    expectedData.data[2] = 255;
-    // Set alpha to 255 to make the pixels show up.
-    expectedData.data[3] = 255;
-
-    context.putImageData(expectedData, 0, 0);
-
-    var resultingData = context.getImageData(0, 0, 10, 10);
-    // Make sure that we read back what we wrote.
-    expect(resultingData.data, expectedData.data);
-  });
-
-  test('putImageData dirty rectangle', () {
-    context.fillStyle = 'green';
-    context.fillRect(0, 0, canvas.width, canvas.height);
-
-    ImageData drawnData = context.getImageData(0, 0, 10, 10);
-    drawnData.data[0] = 25;
-    drawnData.data[1] = 65;
-    drawnData.data[2] = 255;
-    drawnData.data[3] = 255;
-
-    // Draw these pixels to the 2nd pixel.
-    drawnData.data[2 * 4 + 0] = 25;
-    drawnData.data[2 * 4 + 1] = 65;
-    drawnData.data[2 * 4 + 2] = 255;
-    drawnData.data[2 * 4 + 3] = 255;
-
-    // Draw these pixels to the 8th pixel.
-    drawnData.data[7 * 4 + 0] = 25;
-    drawnData.data[7 * 4 + 1] = 65;
-    drawnData.data[7 * 4 + 2] = 255;
-    drawnData.data[7 * 4 + 3] = 255;
-
-    // Use a dirty rectangle to limit what pixels are drawn.
-    context.putImageData(drawnData, 0, 0, 1, 0, 5, 5);
-
-    // Expect the data to be all green, as we skip all drawn pixels.
-    ImageData expectedData = context.createImageData(10, 10);
-    for (int i = 0; i < expectedData.data.length; i++) {
-      switch (i % 4) {
-        case 0:
-          expectedData.data[i] = 0;
-          break;
-        case 1:
-          expectedData.data[i] = 128;
-          break;
-        case 2:
-          expectedData.data[i] = 0;
-          break;
-        case 3:
-          expectedData.data[i] = 255;
-          break;
-      }
-    }
-    // Third pixel was copied.
-    expectedData.data[2 * 4 + 0] = 25;
-    expectedData.data[2 * 4 + 1] = 65;
-    expectedData.data[2 * 4 + 2] = 255;
-    expectedData.data[2 * 4 + 3] = 255;
-
-    // Make sure that our data is all green.
-    var resultingData = context.getImageData(0, 0, 10, 10);
-    expect(resultingData.data, expectedData.data);
-  });
-
-  test('putImageData throws with wrong number of arguments', () {
-    ImageData expectedData = context.getImageData(0, 0, 10, 10);
-
-    // TODO(antonm): in Dartium ArgumentError should be thrown too.
-    expect(() => context.putImageData(expectedData, 0, 0, 1), throws);
-    expect(() => context.putImageData(expectedData, 0, 0, 1, 1), throws);
-    expect(() => context.putImageData(expectedData, 0, 0, 1, 1, 5), throws);
-  });
-}
diff --git a/tests/lib_2/html/cdata_test.dart b/tests/lib_2/html/cdata_test.dart
deleted file mode 100644
index 168ab1d5e1b..00000000000
--- a/tests/lib_2/html/cdata_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('remove', () {
-    var div = new Element.html('<div>content</div>');
-    var cdata = div.nodes[0];
-    expect(cdata is CharacterData, true);
-    expect(cdata, isNotNull);
-    expect(div.innerHtml, 'content');
-
-    cdata.remove();
-    expect(div.innerHtml, '');
-  });
-}
diff --git a/tests/lib_2/html/client_rect_test.dart b/tests/lib_2/html/client_rect_test.dart
deleted file mode 100644
index 056d851d0e9..00000000000
--- a/tests/lib_2/html/client_rect_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  var isRectList =
-      predicate((x) => x is DomRectList, 'should be a DomRectList');
-  var isListOfRectangle =
-      predicate((x) => x is List<Rectangle>, 'should be a List<Rectangle>');
-
-  var isRectangle = predicate((x) => x is Rectangle, 'should be a Rectangle');
-  var isDomRectReadOnly =
-      predicate((x) => x is DomRectReadOnly, 'should be a DomRectReadOnly');
-
-  insertTestDiv() {
-    var element = new Element.tag('div');
-    element.innerHtml = r'''
-    A large block of text should go here. Click this
-    block of text multiple times to see each line
-    highlight with every click of the mouse button.
-    ''';
-    document.body.append(element);
-    return element;
-  }
-
-  test("DomRectList test", () {
-    insertTestDiv();
-    var range = new Range();
-    var rects = range.getClientRects();
-    expect(rects, isListOfRectangle);
-    expect(rects, isRectList);
-  });
-
-  test("ClientRect ==", () {
-    var rect1 = document.body.getBoundingClientRect();
-    var rect2 = document.body.getBoundingClientRect();
-    expect(rect1, isRectangle);
-    expect(rect1, isDomRectReadOnly);
-    expect(rect1, equals(rect2));
-  });
-}
diff --git a/tests/lib_2/html/convert_native_to_dart_dictionary_test.dart b/tests/lib_2/html/convert_native_to_dart_dictionary_test.dart
deleted file mode 100644
index b61fea1df2a..00000000000
--- a/tests/lib_2/html/convert_native_to_dart_dictionary_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'dart:html_common';
-import 'package:expect/expect.dart';
-import 'package:expect/minitest.dart';
-
-var obj = {
-  'val1': 'hello',
-  'val2': 'there',
-  'val3': {
-    'sub1': 'general kenobi',
-    'sub2': 'you are',
-    'sub3': 'a bold one',
-    'sub4': {
-      'nilval': null,
-      'boolval': false,
-    }
-  },
-  'val4': [
-    'execute',
-    'order',
-    '66',
-    {'number': 33}
-  ]
-};
-
-main() {
-  test('dart to native -> native to dart', () {
-    var toNative = convertDartToNative_Dictionary(obj);
-    var toDart = convertNativeToDart_Dictionary(toNative);
-
-    Expect.deepEquals(obj, toDart);
-  });
-}
diff --git a/tests/lib_2/html/cross_domain_iframe_script.html b/tests/lib_2/html/cross_domain_iframe_script.html
deleted file mode 100644
index 41e2ea4751b..00000000000
--- a/tests/lib_2/html/cross_domain_iframe_script.html
+++ /dev/null
@@ -1,14 +0,0 @@
-<!DOCTYPE html>
-
-<html>
-  <head>
-  	<meta charset="utf-8">
-    <title>cross_domain_iframe_script</title>
-  </head>
-
-  <body>
-    <script type="application/javascript"
-            src="/root_dart/tests/lib_2/html/cross_domain_iframe_script.js">
-    </script>
-  </body>
-</html>
diff --git a/tests/lib_2/html/cross_domain_iframe_script.js b/tests/lib_2/html/cross_domain_iframe_script.js
deleted file mode 100644
index 9dcdc755a47..00000000000
--- a/tests/lib_2/html/cross_domain_iframe_script.js
+++ /dev/null
@@ -1 +0,0 @@
-window.parent.postMessage('foobar', '*');
\ No newline at end of file
diff --git a/tests/lib_2/html/cross_domain_iframe_test.dart b/tests/lib_2/html/cross_domain_iframe_test.dart
deleted file mode 100644
index d49025fbc7a..00000000000
--- a/tests/lib_2/html/cross_domain_iframe_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'package:expect/minitest.dart';
-
-main() {
-  var uri = Uri.parse(window.location.href);
-
-  var crossOriginPort = int.parse(uri.queryParameters['crossOriginPort']);
-  var crossOrigin = '${uri.scheme}://${uri.host}:$crossOriginPort';
-  var crossOriginUrl =
-      '$crossOrigin/root_dart/tests/lib_2/html/cross_domain_iframe_script.html';
-
-  var iframe = new IFrameElement();
-  iframe.src = crossOriginUrl;
-  document.body.append(iframe);
-
-  return window.onMessage
-      .where((MessageEvent event) {
-        return event.origin == crossOrigin;
-      })
-      .first
-      .then((MessageEvent event) {
-        expect(event.data, equals('foobar'));
-        expect(event.source, isNotNull);
-      });
-}
diff --git a/tests/lib_2/html/cross_frame_test.dart b/tests/lib_2/html/cross_frame_test.dart
deleted file mode 100644
index 4dcf5628251..00000000000
--- a/tests/lib_2/html/cross_frame_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  var isWindowBase = predicate((x) => x is WindowBase, 'is a WindowBase');
-  var isWindow = predicate((x) => x is Window, 'is a Window');
-  var isLocationBase = predicate((x) => x is LocationBase, 'is a LocationBase');
-  var isLocation = predicate((x) => x is Location, 'is a Location');
-  var isHistoryBase = predicate((x) => x is HistoryBase, 'is a HistoryBase');
-  var isHistory = predicate((x) => x is History, 'is a History');
-
-  final dynamic iframe = new IFrameElement();
-  document.body.append(iframe);
-
-  test('window', () {
-    expect(window, isWindow);
-    expect(window.document, document);
-  });
-
-  test('iframe', () {
-    final frameWindow = iframe.contentWindow;
-    expect(frameWindow, isWindowBase);
-    //TODO(gram) The next test should be written as:
-    //    expect(frameWindow, isNot(isWindow));
-    // but that will cause problems now until is/is! work
-    // properly in dart2js instead of always returning true.
-    expect(frameWindow is! Window, isTrue);
-    expect(frameWindow.parent, isWindow);
-
-    // Ensure that the frame's document is inaccessible via window.
-    expect(() => frameWindow.document, throws);
-  });
-
-  test('contentDocument', () {
-    // Ensure that the frame's document is inaccessible.
-    expect(() => iframe.contentDocument, throws);
-  });
-
-  test('location', () {
-    expect(window.location, isLocation);
-    final frameLocation = iframe.contentWindow.location;
-    expect(frameLocation, isLocationBase);
-    // TODO(gram) Similar to the above, the next test should be:
-    //     expect(frameLocation, isNot(isLocation));
-    expect(frameLocation is! Location, isTrue);
-
-    expect(() => frameLocation.href, throws);
-    expect(() => frameLocation.hash, throws);
-
-    final frameParentLocation = iframe.contentWindow.parent.location;
-    expect(frameParentLocation, isLocation);
-  });
-
-  test('history', () {
-    expect(window.history, isHistory);
-    final frameHistory = iframe.contentWindow.history;
-    expect(frameHistory, isHistoryBase);
-    // See earlier comments.
-    //expect(frameHistory, isNot(isHistory));
-    expect(frameHistory is! History, isTrue);
-
-    // Valid methods.
-    frameHistory.forward();
-
-    expect(() => frameHistory.length, throws);
-
-    final frameParentHistory = iframe.contentWindow.parent.history;
-    expect(frameParentHistory, isHistory);
-  });
-}
diff --git a/tests/lib_2/html/crypto_test.dart b/tests/lib_2/html/crypto_test.dart
deleted file mode 100644
index 7a9d8d88c87..00000000000
--- a/tests/lib_2/html/crypto_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:typed_data';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  group('supported', () {
-    test('supported', () {
-      expect(Crypto.supported, true);
-    });
-  });
-
-  group('functional', () {
-    if (Crypto.supported) {
-      // This will actually pass on FF since it has a Crypto API, but it is
-      // incompatible.
-      test('exists', () {
-        var crypto = window.crypto;
-        expect(crypto is Crypto, isTrue);
-      });
-
-      test('successful call', () {
-        var crypto = window.crypto;
-        var data = new Uint8List(100);
-        expect(data.every((e) => e == 0), isTrue);
-        crypto.getRandomValues(data);
-        // In theory this is flaky. However, in practice you will get 100 zeroes
-        // in a row from a cryptographically secure random number generator so
-        // rarely that we don't have to worry about it.
-        expect(data.any((e) => e != 0), isTrue);
-      });
-
-      test('type mismatch', () {
-        var crypto = window.crypto;
-        var data = new Float32List(100);
-        expect(() {
-          crypto.getRandomValues(data);
-        }, throws, reason: 'Only typed array views with integer types allowed');
-      });
-    }
-  });
-}
diff --git a/tests/lib_2/html/css_rule_list_test.dart b/tests/lib_2/html/css_rule_list_test.dart
deleted file mode 100644
index 8b61620029a..00000000000
--- a/tests/lib_2/html/css_rule_list_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  var isCssRuleList =
-      predicate((x) => x is List<CssRule>, 'is a List<CssRule>');
-
-  test("ClientRectList test", () {
-    var sheet = document.styleSheets[0] as CssStyleSheet;
-    List<CssRule> rulesList = sheet.cssRules;
-    expect(rulesList, isCssRuleList);
-  });
-}
diff --git a/tests/lib_2/html/css_selector_test.dart b/tests/lib_2/html/css_selector_test.dart
deleted file mode 100644
index 6540b481f86..00000000000
--- a/tests/lib_2/html/css_selector_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/expect.dart';
-import 'utils.dart';
-
-main() {
-  final String htmlPayload = "<div>"
-      "<div>"
-      "<p class='a'>"
-      "<span>Test #1</span>"
-      "</p>"
-      "</div>"
-      "<div>"
-      "<p class='b'>"
-      "<span>Test #2</span>"
-      "</p>"
-      "</div>"
-      "</div>";
-
-  final elements =
-      new Element.html(htmlPayload, treeSanitizer: new NullTreeSanitizer());
-  document.body.nodes.add(elements);
-
-  var para = document.body.querySelector('p') as ParagraphElement;
-  para.classes.removeAll(['a', 'b']);
-
-  para = document.body.querySelector('p') as ParagraphElement;
-  Expect.equals('<p class=""><span>Test #1</span></p>', para.outerHtml);
-
-  para = document.body.querySelector('p') as ParagraphElement;
-  para.classes.addAll(['c']);
-
-  para = document.body.querySelector('p') as ParagraphElement;
-  Expect.equals('<p class="c"><span>Test #1</span></p>', para.outerHtml);
-
-  var allPara = document.body.querySelectorAll('p');
-  allPara.classes.removeAll(['b', 'c']);
-
-  var checkAllPara = document.body.querySelectorAll('p');
-  Expect.equals(
-      '<p class=""><span>Test #1</span></p>', checkAllPara[0].outerHtml);
-  Expect.equals(
-      '<p class=""><span>Test #2</span></p>', checkAllPara[1].outerHtml);
-}
diff --git a/tests/lib_2/html/css_test.dart b/tests/lib_2/html/css_test.dart
deleted file mode 100644
index 2d60c97d830..00000000000
--- a/tests/lib_2/html/css_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-
-// @dart = 2.9
-library CssTest;
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  group('supportsPointConversions', () {
-    test('supported', () {
-      expect(Window.supportsPointConversions, true);
-    });
-  });
-
-  group('functional', () {
-    test('DomPoint', () {
-      var expectation =
-          Window.supportsPointConversions ? returnsNormally : throws;
-      expect(() {
-        Element element = new Element.tag('div');
-        element.attributes['style'] = '''
-          position: absolute;
-          width: 60px;
-          height: 100px;
-          left: 0px;
-          top: 0px;
-          background-color: red;
-          -webkit-transform: translate3d(250px, 100px, 0px);
-          -moz-transform: translate3d(250px, 100px, 0px);
-          ''';
-        document.body.append(element);
-
-        var elemRect = element.getBoundingClientRect();
-
-        checkPoint(250, 100, new Point(elemRect.left, elemRect.top));
-        checkPoint(310, 200, new Point(elemRect.right, elemRect.bottom));
-      }, expectation);
-    });
-  });
-}
-
-void checkPoint(expectedX, expectedY, Point point) {
-  expect(point.x.round(), equals(expectedX), reason: 'Wrong point.x');
-  expect(point.y.round(), equals(expectedY), reason: 'Wrong point.y');
-}
diff --git a/tests/lib_2/html/cssstyledeclaration_test.dart b/tests/lib_2/html/cssstyledeclaration_test.dart
deleted file mode 100644
index 393139e14b0..00000000000
--- a/tests/lib_2/html/cssstyledeclaration_test.dart
+++ /dev/null
@@ -1,167 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library CssStyleDeclarationTest;
-
-import 'dart:async';
-import 'dart:html';
-
-import 'package:async_helper/async_minitest.dart';
-
-import 'utils.dart';
-
-main() {
-  createTestStyle() {
-    return new CssStyleDeclaration.css("""
-      color: blue;
-      width: 2px !important;
-    """);
-  }
-
-  ;
-
-  test('default constructor is empty', () {
-    var style = new CssStyleDeclaration();
-    expect(style.cssText.isEmpty, isTrue);
-    expect(style.getPropertyPriority('color').isEmpty, isTrue);
-    expect(style.item(0).isEmpty, isTrue);
-    expect(style.length, 0);
-    // These assertions throw a UnimplementedError in dartium:
-    // expect(style.parentRule, isNull);
-    // expect(style.getPropertyCssValue('color'), isNull);
-    // expect(style.getPropertyShorthand('color'), isNull);
-  });
-
-  test('length is wrapped', () {
-    expect(createTestStyle().length, 2);
-  });
-
-  test('getPropertyPriority is wrapped', () {
-    var style = createTestStyle();
-    expect(style.getPropertyPriority("color").isEmpty, isTrue);
-    expect(style.getPropertyPriority("width"), equals("important"));
-  });
-
-  test('removeProperty is wrapped', () {
-    var style = createTestStyle();
-    style.removeProperty("width");
-    expect(style.cssText.trim(), equals("color: blue;"));
-  });
-
-  test('CSS property empty getters and setters', () {
-    var style = createTestStyle();
-    expect(style.border, equals(""));
-
-    style.border = "1px solid blue";
-    style.border = "";
-    expect(style.border, equals(""));
-
-    style.border = "1px solid blue";
-    style.border = null;
-    expect(style.border, equals(""));
-  });
-
-  test('CSS property getters and setters', () {
-    var style = createTestStyle();
-    expect(style.color, equals("blue"));
-    expect(style.width, equals("2px"));
-
-    style.color = "red";
-    style.transform = "translate(10px, 20px)";
-
-    expect(style.color, equals("red"));
-    expect(style.transform, equals("translate(10px, 20px)"));
-  });
-
-  test('Browser prefixes', () {
-    var element = new DivElement();
-    element.style.transform = 'translateX(10px)';
-    document.body.children.add(element);
-
-    var style = element.getComputedStyle();
-    // Some browsers will normalize this, so it'll be a matrix rather than
-    // the original string. Just check that it's something other than null.
-    expect(style.transform.length, greaterThan(3));
-  });
-
-  // IE9 requires an extra poke for some properties to get applied.
-  test('IE9 Invalidation', () {
-    var element = new DivElement();
-    document.body.children.add(element);
-
-    // Need to wait one tick after the element has been added to the page.
-    new Timer(const Duration(milliseconds: 10), expectAsync(() {
-      element.style.textDecoration = 'underline';
-      var style = element.getComputedStyle();
-      expect(style.textDecoration.contains('underline'), isTrue);
-    }));
-  });
-
-  test('Invalid values', () {
-    var element = new DivElement();
-    // Should not throw an error.
-    element.style.background = 'some_bad_value';
-  });
-
-  test('css multi get', () {
-    var listElement = new Element.html(
-        '<ul class="foo">'
-        '<li class="bar" style="background-color: red; border-left: 10px;">'
-        '<li class="baz" style="background-color: black;>'
-        '<li class="baz classy" style="background-color: blue; ">'
-        '</ul>',
-        treeSanitizer: new NullTreeSanitizer());
-    document.documentElement.children.add(listElement);
-
-    var elements = document.querySelectorAll('li');
-    expect(elements.style.backgroundColor, equals('red'));
-    expect(elements.style.borderLeftWidth, equals('10px'));
-    elements = document.querySelectorAll('.baz');
-    expect(elements.style.backgroundColor, equals('black'));
-    expect(elements.style.borderLeftWidth, equals(''));
-    elements = document.querySelectorAll('.bar');
-    expect(elements.style.backgroundColor, equals('red'));
-  });
-
-  test('css multi set', () {
-    var listElement = new Element.html(
-        '<ul class="foo">'
-        '<li class="bar" style="background-color: red; border-left: 10px;">'
-        '<li class="baz" style="background-color: black;>'
-        '<li class="baz" id="wat" style="background-color: blue; ">'
-        '</ul>',
-        treeSanitizer: new NullTreeSanitizer());
-    document.documentElement.children.add(listElement);
-
-    var elements = document.querySelectorAll('li');
-    elements.style.backgroundColor = 'green';
-    expect(elements.style.backgroundColor, equals('green'));
-    expect(elements.style.borderLeftWidth, equals('10px'));
-
-    elements = document.querySelectorAll('.baz');
-    expect(elements.style.backgroundColor, equals('green'));
-    elements.style.backgroundColor = 'yellow';
-    expect(elements.style.backgroundColor, equals('yellow'));
-    expect(elements.style.borderLeftWidth, equals(''));
-
-    elements = document.querySelectorAll('.bar');
-    expect(elements.style.backgroundColor, equals('green'));
-    elements = document.querySelectorAll('#wat');
-    expect(elements.style.backgroundColor, equals('yellow'));
-
-    elements.style.borderLeftWidth = '18px';
-    expect(elements.style.borderLeftWidth, equals('18px'));
-    elements = document.querySelectorAll('li');
-    expect(elements.style.borderLeftWidth, equals('10px'));
-  });
-
-  test('supports property', () {
-    expect(document.body.style.supportsProperty('bogus-property'), false);
-    expect(document.body.style.supportsProperty('background'), true);
-    expect(document.body.style.supportsProperty('borderBottomWidth'), true);
-    expect(document.body.style.supportsProperty('animation'), true);
-  });
-}
diff --git a/tests/lib_2/html/custom_tags_test.dart b/tests/lib_2/html/custom_tags_test.dart
deleted file mode 100644
index 855c9f5438c..00000000000
--- a/tests/lib_2/html/custom_tags_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-import 'utils.dart';
-
-main() {
-  test('create via custom tag', () {
-    var element = new Element.tag('x-basic1')..id = 'basic1';
-    document.body.nodes.add(element);
-
-    var queryById = querySelector('#basic1');
-    expect(queryById, equals(element));
-
-    var queryByTag = querySelectorAll('x-basic1');
-    expect(queryByTag.length, equals(1));
-    expect(queryByTag[0], equals(element));
-  });
-
-  test('custom inner html', () {
-    var element = new DivElement();
-    element.setInnerHtml("<x-basic2 id='basic2'></x-basic2>",
-        treeSanitizer: new NullTreeSanitizer());
-    document.body.nodes.add(element);
-
-    var queryById = querySelector('#basic2');
-    expect(queryById is Element, isTrue);
-
-    var queryByTag = querySelectorAll('x-basic2');
-    expect(queryByTag.length, equals(1));
-    expect(queryByTag[0], equals(queryById));
-  });
-
-  test('type extension inner html', () {
-    var element = new DivElement();
-    element.setInnerHtml("<div is='x-basic3' id='basic3'></div>",
-        treeSanitizer: new NullTreeSanitizer());
-    document.body.nodes.add(element);
-
-    var queryById = querySelector('#basic3');
-    expect(queryById is DivElement, isTrue);
-  });
-}
diff --git a/tests/lib_2/html/dart_object_local_storage_test.dart b/tests/lib_2/html/dart_object_local_storage_test.dart
deleted file mode 100644
index 3dd01fc3262..00000000000
--- a/tests/lib_2/html/dart_object_local_storage_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-// TODO(vsm): Rename this to wrapper_caching_test or similar.  It's
-// basically a port of dom/dart_object_local_storage_test.dart.  For
-// wrapping implementation of dart:html (i.e., the dartium one), it is
-// effectively testing dart_object_local_storage in the underlying dom
-// object.
-main() {
-  BodyElement body = document.body;
-  Storage localStorage = window.localStorage;
-  Storage sessionStorage = window.sessionStorage;
-  var element = new Element.tag('canvas');
-  element.id = 'test';
-  body.append(element);
-
-  test('body', () {
-    expect(body, equals(document.body));
-  });
-  test('localStorage', () {
-    expect(localStorage, equals(window.localStorage));
-  });
-  test('sessionStorage', () {
-    expect(sessionStorage, equals(window.sessionStorage));
-  });
-  test('unknown', () {
-    var test = document.querySelector('#test');
-    expect(element, equals(test));
-  });
-}
diff --git a/tests/lib_2/html/datalistelement_test.dart b/tests/lib_2/html/datalistelement_test.dart
deleted file mode 100644
index f5c04e45a6a..00000000000
--- a/tests/lib_2/html/datalistelement_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  var isDataListElement =
-      predicate((x) => x is DataListElement, 'is a DataListElement');
-
-  var div;
-
-  setUp(() {
-    div = new DivElement();
-    document.body.append(div);
-    div.innerHtml = """
-<input id="input" list="browsers" />
-<datalist id="browsers">
-  <option value="Chrome">
-  <option value="Firefox">
-  <option value="Internet Explorer">
-  <option value="Opera">
-  <option value="Safari">
-</datalist>
-""";
-  });
-
-  tearDown(() {
-    document.body.nodes.removeLast();
-  });
-
-  test('is', () {
-    try {
-      var list = document.querySelector('#browsers');
-      expect(list, isDataListElement);
-    } catch (e) {
-      expect(DataListElement.supported, false);
-    }
-  });
-
-  test('list', () {
-    try {
-      var list = document.querySelector('#browsers') as DataListElement;
-      var input = document.querySelector('#input') as InputElement;
-      expect(input.list, list);
-    } catch (e) {
-      expect(DataListElement.supported, false);
-    }
-  });
-
-  test('options', () {
-    try {
-      var options =
-          (document.querySelector('#browsers') as DataListElement).options;
-      expect(options.length, 5);
-    } catch (e) {
-      expect(DataListElement.supported, false);
-    }
-  });
-
-  test('create', () {
-    try {
-      var list = new DataListElement();
-      expect(list, isDataListElement);
-    } catch (e) {
-      expect(DataListElement.supported, false);
-    }
-  });
-}
diff --git a/tests/lib_2/html/dispatch_parent_event.js b/tests/lib_2/html/dispatch_parent_event.js
deleted file mode 100644
index ee204b46724..00000000000
--- a/tests/lib_2/html/dispatch_parent_event.js
+++ /dev/null
@@ -1,5 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-window.parent.dispatchEvent(new Event('detect_errors'));
diff --git a/tests/lib_2/html/document_test.dart b/tests/lib_2/html/document_test.dart
deleted file mode 100644
index 40dc9973782..00000000000
--- a/tests/lib_2/html/document_test.dart
+++ /dev/null
@@ -1,86 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  var isElement = predicate((x) => x is Element, 'is an Element');
-  var isDivElement = predicate((x) => x is DivElement, 'is a DivElement');
-  var isAnchorElement =
-      predicate((x) => x is AnchorElement, 'is an AnchorElement');
-  var isUnknownElement =
-      predicate((x) => x is UnknownElement, 'is UnknownElement');
-
-  var inscrutable;
-
-  test('CreateElement', () {
-    // FIXME: nifty way crashes, do it boring way.
-    expect(new Element.tag('span'), isElement);
-    expect(new Element.tag('div'), isDivElement);
-    expect(new Element.tag('a'), isAnchorElement);
-    expect(new Element.tag('bad_name'), isUnknownElement);
-  });
-
-  group('document', () {
-    inscrutable = (x) => x;
-
-    test('Document.query', () {
-      Document doc = new DomParser().parseFromString(
-          '''<ResultSet>
-           <Row>A</Row>
-           <Row>B</Row>
-           <Row>C</Row>
-         </ResultSet>''',
-          'text/xml');
-
-      var rs = doc.querySelector('ResultSet');
-      expect(rs, isNotNull);
-    });
-
-    test('CreateElement', () {
-      // FIXME: nifty way crashes, do it boring way.
-      expect(new Element.tag('span'), isElement);
-      expect(new Element.tag('div'), isDivElement);
-      expect(new Element.tag('a'), isAnchorElement);
-      expect(new Element.tag('bad_name'), isUnknownElement);
-    });
-
-    test('adoptNode', () {
-      var div = new Element.html('<div><div id="foo">bar</div></div>');
-      var doc = document.implementation.createHtmlDocument('');
-      expect(doc.adoptNode(div), div);
-      expect(div.ownerDocument, doc);
-      doc.body.nodes.add(div);
-      expect(doc.querySelector('#foo').text, 'bar');
-    });
-
-    test('importNode', () {
-      var div = new Element.html('<div><div id="foo">bar</div></div>');
-      var doc = document.implementation.createHtmlDocument('');
-      var div2 = doc.importNode(div, true);
-      expect(div2, notEquals(div));
-      expect(div2.ownerDocument, doc);
-      doc.body.nodes.add(div2);
-      expect(doc.querySelector('#foo').text, 'bar');
-    });
-
-    test('typeTest1', () {
-      inscrutable = inscrutable(inscrutable);
-      var doc1 = document;
-      expect(doc1 is HtmlDocument, true);
-      expect(inscrutable(doc1) is HtmlDocument, true);
-      var doc2 = document.implementation.createHtmlDocument('');
-      expect(doc2 is HtmlDocument, true);
-      expect(inscrutable(doc2) is HtmlDocument, true);
-    });
-
-    test('typeTest2', () {
-      inscrutable = inscrutable(inscrutable);
-      // XML document.
-      var doc3 = document.implementation.createDocument(null, 'report', null);
-      expect(doc3 is HtmlDocument, false);
-      expect(inscrutable(doc3) is HtmlDocument, false);
-    });
-  });
-}
diff --git a/tests/lib_2/html/documentfragment_test.dart b/tests/lib_2/html/documentfragment_test.dart
deleted file mode 100644
index 1bf5e60a6a7..00000000000
--- a/tests/lib_2/html/documentfragment_test.dart
+++ /dev/null
@@ -1,172 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-import 'utils.dart';
-
-main() {
-  var isAnchorElement =
-      predicate((x) => x is AnchorElement, 'is an AnchorElement');
-
-  List<String> _nodeStrings(Iterable<Node> input) {
-    var out = <String>[];
-    for (Node n in input) {
-      if (n is Element) {
-        Element e = n;
-        out.add(e.tagName);
-      } else {
-        out.add(n.text);
-      }
-    }
-    return out;
-  }
-
-  void expectEmptyStyleDeclaration(CssStyleDeclaration style) {
-    expect(style.cssText, equals(''));
-    expect(style.getPropertyPriority('color'), equals(''));
-    expect(style.item(0), equals(''));
-    expect(style.length, equals(0));
-    // TODO(jacobr): these checks throw UnimplementedErrors in dartium.
-    // expect(style.parentRule, isNull);
-    // expect(style.getPropertyCssValue('color'), isNull);
-    // expect(style.getPropertyShorthand('color'), isNull);
-    // expect(style.isPropertyImplicit('color'), isFalse);
-
-    // Ideally these would throw errors, but it's not possible to create a class
-    // that'll intercept these calls without implementing the entire
-    // CssStyleDeclaration interface, so we'll settle for them being no-ops.
-    style.cssText = '* {color: blue}';
-    style.removeProperty('color');
-    style.setProperty('color', 'blue');
-  }
-
-  group('constructors', () {
-    test('0-argument makes an empty fragment', () {
-      final fragment = new DocumentFragment();
-      expect(fragment.children, equals([]));
-    });
-
-    test('.html parses input as HTML', () {
-      final fragment = new DocumentFragment.html('<a>foo</a>');
-      expect(fragment.children[0], isAnchorElement);
-    });
-
-    // test('.svg parses input as SVG', () {
-    //   final fragment = new DocumentFragment.svg('<a>foo</a>');
-    //   expect(fragment.children[0] is SVGAElement, isTrue);
-    // });
-
-    // TODO(nweiz): enable this once XML is ported.
-    // test('.xml parses input as XML', () {
-    //   final fragment = new DocumentFragment.xml('<a>foo</a>');
-    //   expect(fragment.children[0] is XMLElement, isTrue);
-    // });
-  });
-
-  group('children', () {
-    DocumentFragment fragment;
-    List<Element> children;
-
-    init() {
-      fragment = new DocumentFragment();
-      children = fragment.children;
-      fragment.nodes.addAll([
-        new Text("1"),
-        new Element.tag("A"),
-        new Element.tag("B"),
-        new Text("2"),
-        new Element.tag("I"),
-        new Text("3"),
-        new Element.tag("U")
-      ]);
-    }
-
-    ;
-
-    test('is initially empty', () {
-      children = new DocumentFragment().children;
-      expect(children, equals([]));
-      expect(children.isEmpty, isTrue);
-    });
-
-    test('filters out non-element nodes', () {
-      init();
-      expect(_nodeStrings(fragment.nodes),
-          equals(["1", "A", "B", "2", "I", "3", "U"]));
-      expect(_nodeStrings(children), equals(["A", "B", "I", "U"]));
-    });
-
-    test('only indexes children, not other nodes', () {
-      init();
-      children[1] = new Element.tag("BR");
-      expect(_nodeStrings(fragment.nodes),
-          equals(["1", "A", "BR", "2", "I", "3", "U"]));
-      expect(_nodeStrings(children), equals(["A", "BR", "I", "U"]));
-    });
-
-    test('adds to both children and nodes', () {
-      init();
-      children.add(new Element.tag("UL"));
-      expect(_nodeStrings(fragment.nodes),
-          equals(["1", "A", "B", "2", "I", "3", "U", "UL"]));
-      expect(_nodeStrings(children), equals(["A", "B", "I", "U", "UL"]));
-    });
-
-    test('removes only children, from both children and nodes', () {
-      init();
-      expect(children.removeLast().tagName, equals('U'));
-      expect(
-          _nodeStrings(fragment.nodes), equals(["1", "A", "B", "2", "I", "3"]));
-      expect(_nodeStrings(children), equals(["A", "B", "I"]));
-
-      expect(children.removeLast().tagName, "I");
-      expect(_nodeStrings(fragment.nodes), equals(["1", "A", "B", "2", "3"]));
-      expect(_nodeStrings(children), equals(["A", "B"]));
-    });
-
-    test('accessors are wrapped', () {
-      init();
-      expect(children[0].tagName, "A");
-      expect(_nodeStrings(children.where((e) => e.tagName == "I")), ["I"]);
-      expect(children.every((e) => e is Element), isTrue);
-      expect(children.any((e) => e.tagName == "U"), isTrue);
-      expect(children.isEmpty, isFalse);
-      expect(children.length, 4);
-      expect(children[2].tagName, "I");
-      expect(children.last.tagName, "U");
-    });
-
-    test('setting children overwrites nodes as well', () {
-      init();
-      fragment.children = [new Element.tag("DIV"), new Element.tag("HEAD")];
-      expect(_nodeStrings(fragment.nodes), equals(["DIV", "HEAD"]));
-    });
-  });
-
-  test('setting innerHtml works', () {
-    var fragment = new DocumentFragment();
-    fragment.append(new Text("foo"));
-    fragment.innerHtml = "<a>bar</a>baz";
-    expect(_nodeStrings(fragment.nodes), equals(["A", "baz"]));
-  });
-
-  test('getting innerHtml works', () {
-    var fragment = new DocumentFragment();
-    fragment.nodes.addAll([new Text("foo"), new Element.html("<A>bar</A>")]);
-    expect(fragment.innerHtml, "foo<a>bar</a>");
-  });
-
-  test('query searches the fragment', () {
-    var fragment = new DocumentFragment.html(
-        "<div class='foo'><a>foo</a><b>bar</b></div>");
-    expect(fragment.querySelector(".foo a").tagName, "A");
-    expect(_nodeStrings(fragment.querySelectorAll<Element>(".foo *")),
-        equals(["A", "B"]));
-  });
-}
diff --git a/tests/lib_2/html/dom_constructors_test.dart b/tests/lib_2/html/dom_constructors_test.dart
deleted file mode 100644
index ef6867c809d..00000000000
--- a/tests/lib_2/html/dom_constructors_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('FileReader', () {
-    FileReader fileReader = new FileReader();
-    expect(fileReader.readyState, equals(FileReader.EMPTY));
-  });
-}
diff --git a/tests/lib_2/html/dom_isolates_test.dart.child_isolate.dart b/tests/lib_2/html/dom_isolates_test.dart.child_isolate.dart
deleted file mode 100644
index ef564f96695..00000000000
--- a/tests/lib_2/html/dom_isolates_test.dart.child_isolate.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:isolate';
-
-main() {
-  port.receive((msg, replyTo) {
-    if (msg != 'check') {
-      replyTo.send('wrong msg: $msg');
-    }
-    replyTo.send('${window.location}');
-    port.close();
-  });
-}
diff --git a/tests/lib_2/html/domparser_test.dart b/tests/lib_2/html/domparser_test.dart
deleted file mode 100644
index e240f60cf30..00000000000
--- a/tests/lib_2/html/domparser_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  var isDomParser = predicate((x) => x is DomParser, 'is a DomParser');
-
-  test('constructorTest', () {
-    var ctx = new DomParser();
-    expect(ctx, isNotNull);
-    expect(ctx, isDomParser);
-  });
-}
diff --git a/tests/lib_2/html/element_add_test.dart b/tests/lib_2/html/element_add_test.dart
deleted file mode 100644
index 3edd994fef6..00000000000
--- a/tests/lib_2/html/element_add_test.dart
+++ /dev/null
@@ -1,269 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-import 'utils.dart';
-
-main() {
-  var isSpanElement = predicate((x) => x is SpanElement, 'is a SpanElement');
-  var isDivElement = predicate((x) => x is DivElement, 'is a DivElement');
-  var isText = predicate((x) => x is Text, 'is a Text');
-
-  void expectNoSuchMethod(void fn()) => expect(fn, throwsNoSuchMethodError);
-
-  group('append', () {
-    test('htmlelement', () {
-      var el = new DivElement();
-      el.append(new SpanElement());
-      expect(el.children.length, equals(1));
-      var span = el.children[0];
-      expect(span, isSpanElement);
-
-      el.append(new DivElement());
-      expect(el.children.length, equals(2));
-      // Validate that the first item is still first.
-      expect(el.children[0], equals(span));
-      expect(el.children[1], isDivElement);
-    });
-
-    test('documentFragment', () {
-      var fragment = new DocumentFragment();
-      fragment.append(new SpanElement());
-      expect(fragment.children.length, equals(1));
-      expect(fragment.children[0], isSpanElement);
-    });
-  });
-
-  group('appendHtml', () {
-    test('htmlelement', () {
-      var el = new DivElement();
-      el.appendHtml('<span></span>');
-      expect(el.children.length, equals(1));
-      var span = el.children[0];
-      expect(span, isSpanElement);
-
-      el.appendHtml('<div></div>');
-      expect(el.children.length, equals(2));
-      // Validate that the first item is still first.
-      expect(el.children[0], equals(span));
-      expect(el.children[1], isDivElement);
-    });
-
-    test('documentFragment', () {
-      var fragment = new DocumentFragment();
-      fragment.appendHtml('<span>something</span>');
-      expect(fragment.children.length, equals(1));
-      expect(fragment.children[0], isSpanElement);
-    });
-
-    test('html interpreted in correct context', () {
-      // appendHtml, in order to sanitize, needs to create a document fragment,
-      // but it needs to be created in the right context. If we try to append
-      // table components then the document fragment needs the table context
-      // or it will fail to create them.
-      var el = new TableElement();
-      el.appendHtml('<tr><td>foo</td></tr>');
-      expect(el.children.length, 1);
-      var section = el.children.first;
-      expect(section is TableSectionElement, isTrue);
-      var row = section.children.first;
-      expect(row is TableRowElement, isTrue);
-      var item = row.children.first;
-      expect(item is TableCellElement, isTrue);
-      expect(item.innerHtml, 'foo');
-    });
-
-    test("use body context for elements that are don't support it", () {
-      // Some elements can't be used as context for createContextualFragment,
-      // often because it doesn't make any sense. So adding children to a
-      // <br> has no real effect on the page, but we can do it. But the
-      // document fragment will have to be created in the body context. Verify
-      // that this doesn't throw and that the children show up.
-      var el = new BRElement();
-      el.appendHtml("<p>Stuff</p>");
-      expect(el.children.length, 1);
-      expect(el.children[0].outerHtml, "<p>Stuff</p>");
-    });
-  });
-
-  group('appendText', () {
-    test('htmlelement', () {
-      var el = new DivElement();
-      el.appendText('foo');
-      // No children were created.
-      expect(el.children.length, equals(0));
-      // One text node was added.
-      expect(el.nodes.length, equals(1));
-    });
-
-    test('htmlelement', () {
-      var el = new DivElement();
-      var twoNewLines = "\n\n";
-      el.appendText(twoNewLines);
-      // No children were created.
-      expect(el.children.length, equals(0));
-      // One text node was added.
-      expect(el.nodes.length, equals(1));
-      expect(el.nodes[0], isText);
-      expect(el.nodes[0].text, equals(twoNewLines));
-      expect(el.text, equals(twoNewLines));
-    });
-
-    test('documentFragment', () {
-      var fragment = new DocumentFragment();
-      fragment.appendText('foo');
-      // No children were created.
-      expect(fragment.children.length, equals(0));
-      // One text node was added.
-      expect(fragment.nodes.length, equals(1));
-    });
-  });
-
-  group('insertAdjacentElement', () {
-    test('beforebegin', () {
-      var parent = new DivElement();
-      var child = new DivElement();
-      var newChild = new SpanElement();
-      parent.children.add(child);
-
-      child.insertAdjacentElement('beforebegin', newChild);
-
-      expect(parent.children.length, 2);
-      expect(parent.children[0], isSpanElement);
-    });
-
-    test('afterend', () {
-      var parent = new DivElement();
-      var child = new DivElement();
-      var newChild = new SpanElement();
-      parent.children.add(child);
-
-      child.insertAdjacentElement('afterend', newChild);
-
-      expect(parent.children.length, 2);
-      expect(parent.children[1], isSpanElement);
-    });
-
-    test('afterbegin', () {
-      var parent = new DivElement();
-      var child = new DivElement();
-      var newChild = new SpanElement();
-      parent.children.add(child);
-
-      parent.insertAdjacentElement('afterbegin', newChild);
-
-      expect(parent.children.length, 2);
-      expect(parent.children[0], isSpanElement);
-    });
-
-    test('beforeend', () {
-      var parent = new DivElement();
-      var child = new DivElement();
-      var newChild = new SpanElement();
-      parent.children.add(child);
-
-      parent.insertAdjacentElement('beforeend', newChild);
-
-      expect(parent.children.length, 2);
-      expect(parent.children[1], isSpanElement);
-    });
-  });
-
-  group('insertAdjacentHtml', () {
-    test('beforebegin', () {
-      var parent = new DivElement();
-      var child = new DivElement();
-      parent.children.add(child);
-
-      child.insertAdjacentHtml('beforebegin', '<span></span>');
-
-      expect(parent.children.length, 2);
-      expect(parent.children[0], isSpanElement);
-    });
-
-    test('afterend', () {
-      var parent = new DivElement();
-      var child = new DivElement();
-      parent.children.add(child);
-
-      child.insertAdjacentHtml('afterend', '<span></span>');
-
-      expect(parent.children.length, 2);
-      expect(parent.children[1], isSpanElement);
-    });
-
-    test('afterbegin', () {
-      var parent = new DivElement();
-      var child = new DivElement();
-      parent.children.add(child);
-
-      parent.insertAdjacentHtml('afterbegin', '<span></span>');
-
-      expect(parent.children.length, 2);
-      expect(parent.children[0], isSpanElement);
-    });
-
-    test('beforeend', () {
-      var parent = new DivElement();
-      var child = new DivElement();
-      parent.children.add(child);
-
-      parent.insertAdjacentHtml('beforeend', '<span></span>');
-
-      expect(parent.children.length, 2);
-      expect(parent.children[1], isSpanElement);
-    });
-  });
-
-  group('insertAdjacentText', () {
-    test('beforebegin', () {
-      var parent = new DivElement();
-      var child = new DivElement();
-      parent.children.add(child);
-
-      child.insertAdjacentText('beforebegin', 'test');
-
-      expect(parent.nodes.length, 2);
-      expect(parent.nodes[0], isText);
-    });
-
-    test('afterend', () {
-      var parent = new DivElement();
-      var child = new DivElement();
-      parent.children.add(child);
-
-      child.insertAdjacentText('afterend', 'test');
-
-      expect(parent.nodes.length, 2);
-      expect(parent.nodes[1], isText);
-    });
-
-    test('afterbegin', () {
-      var parent = new DivElement();
-      var child = new DivElement();
-      parent.children.add(child);
-
-      parent.insertAdjacentText('afterbegin', 'test');
-
-      expect(parent.nodes.length, 2);
-      expect(parent.nodes[0], isText);
-    });
-
-    test('beforeend', () {
-      var parent = new DivElement();
-      var child = new DivElement();
-      parent.children.add(child);
-
-      parent.insertAdjacentText('beforeend', 'test');
-
-      expect(parent.nodes.length, 2);
-      expect(parent.nodes[1], isText);
-    });
-  });
-}
diff --git a/tests/lib_2/html/element_animate_simple_timing_test.dart b/tests/lib_2/html/element_animate_simple_timing_test.dart
deleted file mode 100644
index a70dbf50bea..00000000000
--- a/tests/lib_2/html/element_animate_simple_timing_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library element_animate_test;
-
-import 'dart:async';
-import 'dart:html';
-
-import 'package:async_helper/async_minitest.dart';
-
-main() {
-  test('simple timing', () {
-    if (Animation.supported) {
-      var body = document.body;
-      var opacity = num.parse(body.getComputedStyle().opacity);
-      body.animate([
-        {"opacity": 100},
-        {"opacity": 0}
-      ], 100);
-      var newOpacity = num.parse(body.getComputedStyle().opacity);
-      expect(newOpacity == opacity, isTrue);
-    }
-  });
-}
diff --git a/tests/lib_2/html/element_animate_supported_test.dart b/tests/lib_2/html/element_animate_supported_test.dart
deleted file mode 100644
index 5eb33b82714..00000000000
--- a/tests/lib_2/html/element_animate_supported_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library element_animate_test;
-
-import 'dart:async';
-import 'dart:html';
-
-import 'package:async_helper/async_minitest.dart';
-
-main() {
-  test('supported', () {
-    expect(Animation.supported, isTrue);
-  });
-}
diff --git a/tests/lib_2/html/element_animate_timing_dict_test.dart b/tests/lib_2/html/element_animate_timing_dict_test.dart
deleted file mode 100644
index 156893ca5e5..00000000000
--- a/tests/lib_2/html/element_animate_timing_dict_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library element_animate_test;
-
-import 'dart:async';
-import 'dart:html';
-
-import 'package:async_helper/async_minitest.dart';
-
-main() {
-  test('timing dict', () {
-    if (Animation.supported) {
-      var body = document.body;
-      // Animate different characteristics so the tests can run concurrently.
-      var fontSize = body.getComputedStyle().fontSize;
-      var player = body.animate([
-        {"font-size": "500px"},
-        {"font-size": fontSize}
-      ], {
-        "duration": 100
-      });
-      var newFontSize = body.getComputedStyle().fontSize;
-      // Don't bother to parse to numbers, as long as it's changed that
-      // indicates something is happening.
-      expect(newFontSize == fontSize, isFalse);
-      player.on['finish'].listen(expectAsync((_) => 'done'));
-    }
-  });
-}
diff --git a/tests/lib_2/html/element_classes_svg_test.dart b/tests/lib_2/html/element_classes_svg_test.dart
deleted file mode 100644
index c46c5c85765..00000000000
--- a/tests/lib_2/html/element_classes_svg_test.dart
+++ /dev/null
@@ -1,231 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:collection';
-import 'dart:html';
-import 'dart:svg' as svg;
-
-import "package:expect/expect.dart";
-import 'package:expect/minitest.dart';
-
-// Test for `querySelectorAll(xxx).classes.op()` where the query returns mixed
-// Html and Svg elements.
-
-Element makeElementsContainer() {
-  var e = new Element.html('<ul class="yes foo">'
-      '<li class="yes quux qux">'
-      '</ul>');
-  final svgContent = r"""
-<svg version="1.1">
-  <circle class="yes qux"></circle>
-  <path class="yes classy"></path>
-</svg>""";
-  final svgElement = new svg.SvgElement.svg(svgContent);
-  e.append(svgElement);
-  return e;
-}
-
-Element elementsContainer;
-
-/// Test top-level querySelectorAll with generics.
-topLevelQuerySelector() {
-  var noElementsTop = querySelectorAll<svg.PathElement>('.no');
-  expect(noElementsTop.length, 0);
-  expect(noElementsTop is List, true);
-
-  // Expect runtime error all elements in the list are not the proper type.
-  Expect.throwsAssertionError(() => querySelectorAll<svg.CircleElement>('path'),
-      'All elements not of type CircleElement');
-
-  var simpleElems = querySelectorAll('circle');
-  expect(simpleElems.length, 1);
-  expect(simpleElems is List, true);
-  expect(simpleElems is List<dynamic>, true);
-  expect(simpleElems is List<svg.CircleElement>, false);
-  expect(simpleElems[0] is svg.CircleElement, true);
-
-  var varElementsFromTop = querySelectorAll<svg.CircleElement>('circle');
-  expect(varElementsFromTop.length, 1);
-  expect(varElementsFromTop is List, true);
-  expect(varElementsFromTop is List<svg.CircleElement>, true);
-  expect(varElementsFromTop[0] is svg.CircleElement, true);
-  expect(varElementsFromTop is List<svg.PathElement>, false);
-  expect(varElementsFromTop[0] is svg.PathElement, false);
-
-  List<svg.CircleElement> elementsFromTop =
-      querySelectorAll<svg.CircleElement>('circle');
-  expect(elementsFromTop is List, true);
-  expect(elementsFromTop is List<svg.CircleElement>, true);
-  expect(elementsFromTop[0] is svg.CircleElement, true);
-  expect(elementsFromTop.length, 1);
-}
-
-ElementList<Element> elementsSetup() {
-  elementsContainer = makeElementsContainer();
-  document.documentElement.children.add(elementsContainer);
-  var elements = document.querySelectorAll('.yes');
-  expect(elements.length, 4);
-
-  topLevelQuerySelector();
-
-  return elements;
-}
-
-void elementsTearDown() {
-  if (elementsContainer != null) {
-    document.documentElement.children.remove(elementsContainer);
-    elementsContainer = null;
-  }
-}
-
-/// Returns a canonical string for Set<String> and lists of Element's classes.
-String view(var e) {
-  if (e is Set) return '${e.toList()..sort()}';
-  if (e is Element) return view(e.classes);
-  if (e is Iterable) return '${e.map(view).toList()}';
-  throw new ArgumentError('Cannot make canonical view string for: $e}');
-}
-
-main() {
-  Set<String> extractClasses(Element el) {
-    final match = new RegExp('class="([^"]+)"').firstMatch(el.outerHtml);
-    return new LinkedHashSet.from(match[1].split(' '));
-  }
-
-  tearDown(elementsTearDown);
-
-  test('list_view', () {
-    // Test that the 'view' helper function is behaving.
-    var elements = elementsSetup();
-    expect(view(elements.classes), '[classy, foo, quux, qux, yes]');
-    expect(view(elements),
-        '[[foo, yes], [quux, qux, yes], [qux, yes], [classy, yes]]');
-  });
-
-  test('listClasses=', () {
-    var elements = elementsSetup();
-
-    elements.classes = ['foo', 'qux'];
-    expect(view(elements.classes), '[foo, qux]');
-    expect(view(elements), '[[foo, qux], [foo, qux], [foo, qux], [foo, qux]]');
-
-    var elements2 = document.querySelectorAll('.qux');
-    expect(view(elements2.classes), '[foo, qux]');
-    expect(view(elements2), '[[foo, qux], [foo, qux], [foo, qux], [foo, qux]]');
-
-    for (Element e in elements2) {
-      expect(e.classes, equals(['foo', 'qux']));
-      expect(extractClasses(e), equals(['foo', 'qux']));
-    }
-
-    elements.classes = [];
-    expect(view(elements2.classes), '[]');
-    expect(view(elements2), '[[], [], [], []]');
-  });
-
-  test('listMap', () {
-    var elements = elementsSetup();
-    expect(elements.classes.map((c) => c.toUpperCase()).toList(),
-        unorderedEquals(['YES', 'FOO', 'QUX', 'QUUX', 'CLASSY']));
-  });
-
-  test('listContains', () {
-    var elements = elementsSetup();
-    expect(elements.classes.contains('classy'), isTrue);
-    expect(elements.classes.contains('troll'), isFalse);
-  });
-
-  test('listAdd', () {
-    var elements = elementsSetup();
-    var added = elements.classes.add('lassie');
-    expect(added, isFalse);
-
-    expect(view(elements.classes), '[classy, foo, lassie, quux, qux, yes]');
-    expect(
-        view(elements),
-        '[[foo, lassie, yes], [lassie, quux, qux, yes], '
-        '[lassie, qux, yes], [classy, lassie, yes]]');
-  });
-
-  test('listRemove', () {
-    var elements = elementsSetup();
-    expect(elements.classes.remove('lassi'), isFalse);
-    expect(view(elements.classes), '[classy, foo, quux, qux, yes]');
-    expect(view(elements),
-        '[[foo, yes], [quux, qux, yes], [qux, yes], [classy, yes]]');
-
-    expect(elements.classes.remove('qux'), isTrue);
-    expect(view(elements.classes), '[classy, foo, quux, yes]');
-    expect(view(elements), '[[foo, yes], [quux, yes], [yes], [classy, yes]]');
-  });
-
-  test('listToggle', () {
-    var elements = elementsSetup();
-    elements.classes.toggle('qux');
-    expect(view(elements.classes), '[classy, foo, quux, qux, yes]');
-    expect(view(elements),
-        '[[foo, qux, yes], [quux, yes], [yes], [classy, qux, yes]]');
-  });
-
-  test('listAddAll', () {
-    var elements = elementsSetup();
-    elements.classes.addAll(['qux', 'lassi', 'sassy']);
-    expect(
-        view(elements.classes), '[classy, foo, lassi, quux, qux, sassy, yes]');
-    expect(
-        view(elements),
-        '[[foo, lassi, qux, sassy, yes], [lassi, quux, qux, sassy, yes], '
-        '[lassi, qux, sassy, yes], [classy, lassi, qux, sassy, yes]]');
-  });
-
-  test('listRemoveAll', () {
-    var elements = elementsSetup();
-    elements.classes.removeAll(['qux', 'classy', 'mumble']);
-    expect(view(elements.classes), '[foo, quux, yes]');
-    expect(view(elements), '[[foo, yes], [quux, yes], [yes], [yes]]');
-
-    elements.classes.removeAll(['foo', 'yes']);
-    expect(view(elements.classes), '[quux]');
-    expect(view(elements), '[[], [quux], [], []]');
-  });
-
-  test('listToggleAll', () {
-    var elements = elementsSetup();
-    elements.classes.toggleAll(['qux', 'mornin']);
-    expect(view(elements.classes), '[classy, foo, mornin, quux, qux, yes]');
-    expect(
-        view(elements),
-        '[[foo, mornin, qux, yes], [mornin, quux, yes], '
-        '[mornin, yes], [classy, mornin, qux, yes]]');
-  });
-
-  test('listRetainAll', () {
-    var elements = elementsSetup();
-    elements.classes.retainAll(['bar', 'baz', 'classy', 'qux']);
-    expect(view(elements.classes), '[classy, qux]');
-    expect(view(elements), '[[], [qux], [qux], [classy]]');
-  });
-
-  test('listRemoveWhere', () {
-    var elements = elementsSetup();
-    elements.classes.removeWhere((s) => s.startsWith('q'));
-    expect(view(elements.classes), '[classy, foo, yes]');
-    expect(view(elements), '[[foo, yes], [yes], [yes], [classy, yes]]');
-  });
-
-  test('listRetainWhere', () {
-    var elements = elementsSetup();
-    elements.classes.retainWhere((s) => s.startsWith('q'));
-    expect(view(elements.classes), '[quux, qux]');
-    expect(view(elements), '[[], [quux, qux], [qux], []]');
-  });
-
-  test('listContainsAll', () {
-    var elements = elementsSetup();
-    expect(elements.classes.containsAll(['qux', 'mornin']), isFalse);
-    expect(elements.classes.containsAll(['qux', 'classy']), isTrue);
-  });
-}
diff --git a/tests/lib_2/html/element_classes_test.dart b/tests/lib_2/html/element_classes_test.dart
deleted file mode 100644
index 051aa13dfe1..00000000000
--- a/tests/lib_2/html/element_classes_test.dart
+++ /dev/null
@@ -1,392 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:collection';
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-Element makeElement() => new Element.tag('div');
-
-Element makeElementWithClasses() =>
-    new Element.html('<div class="foo bar baz"></div>');
-
-CssClassSet makeClassSet() => makeElementWithClasses().classes;
-
-Element makeListElement() => new Element.html('<ul class="foo bar baz">'
-    '<li class="quux qux">'
-    '<li class="meta">'
-    '<li class="classy lassy">'
-    '<li class="qux lassy">'
-    '</ul>');
-
-Element listElement;
-
-ElementList<Element> listElementSetup() {
-  listElement = makeListElement();
-  document.documentElement.children.add(listElement);
-  return document.querySelectorAll('li');
-}
-
-void listElementTearDown() {
-  if (listElement != null) {
-    document.documentElement.children.remove(listElement);
-    listElement = null;
-  }
-}
-
-/// Returns a canonical string for Set<String> and lists of Element's classes.
-String view(var e) {
-  if (e is Set) return '${e.toList()..sort()}';
-  if (e is Element) return view(e.classes);
-  if (e is Iterable) return '${e.map(view).toList()}';
-  throw new ArgumentError('Cannot make canonical view string for: $e}');
-}
-
-main() {
-  Set<String> extractClasses(Element el) {
-    final match = new RegExp('class="([^"]+)"').firstMatch(el.outerHtml);
-    return new LinkedHashSet.from(match[1].split(' '));
-  }
-
-  test('affects the "class" attribute', () {
-    final el = makeElementWithClasses();
-    el.classes.add('qux');
-    expect(extractClasses(el), equals(['foo', 'bar', 'baz', 'qux']));
-  });
-
-  test('is affected by the "class" attribute', () {
-    final el = makeElementWithClasses();
-    el.attributes['class'] = 'foo qux';
-    expect(el.classes, equals(['foo', 'qux']));
-  });
-
-  test('classes=', () {
-    final el = makeElementWithClasses();
-    el.classes = ['foo', 'qux'];
-    expect(el.classes, equals(['foo', 'qux']));
-    expect(extractClasses(el), equals(['foo', 'qux']));
-  });
-
-  test('toString', () {
-    expect(makeClassSet().toString().split(' '), equals(['foo', 'bar', 'baz']));
-    expect(makeElement().classes.toString(), '');
-  });
-
-  test('forEach', () {
-    final classes = <String>[];
-    makeClassSet().forEach(classes.add);
-    expect(classes, equals(['foo', 'bar', 'baz']));
-  });
-
-  test('iterator', () {
-    final classes = <String>[];
-    for (var el in makeClassSet()) {
-      classes.add(el);
-    }
-    expect(classes, equals(['foo', 'bar', 'baz']));
-  });
-
-  test('map', () {
-    expect(makeClassSet().map((c) => c.toUpperCase()).toList(),
-        equals(['FOO', 'BAR', 'BAZ']));
-  });
-
-  test('where', () {
-    expect(makeClassSet().where((c) => c.contains('a')).toList(),
-        equals(['bar', 'baz']));
-  });
-
-  test('every', () {
-    expect(makeClassSet().every((c) => c is String), isTrue);
-    expect(makeClassSet().every((c) => c.contains('a')), isFalse);
-  });
-
-  test('any', () {
-    expect(makeClassSet().any((c) => c.contains('a')), isTrue);
-    expect(makeClassSet().any((c) => c is num), isFalse);
-  });
-
-  test('isEmpty', () {
-    expect(makeClassSet().isEmpty, isFalse);
-    expect(makeElement().classes.isEmpty, isTrue);
-  });
-
-  test('length', () {
-    expect(makeClassSet().length, 3);
-    expect(makeElement().classes.length, 0);
-  });
-
-  test('contains', () {
-    expect(makeClassSet().contains('foo'), isTrue);
-    expect(makeClassSet().contains('qux'), isFalse);
-  });
-
-  test('contains-bad', () {
-    // Non-strings return `false`.
-    // Strings need to be valid tokens.
-    final classes = makeClassSet();
-    expect(classes.contains(1), isFalse);
-    expect(() => classes.contains(''), throws);
-    expect(() => classes.contains('foo bar'), throws);
-  });
-
-  test('add', () {
-    final classes = makeClassSet();
-    var added = classes.add('qux');
-    expect(added, isTrue);
-    expect(classes, equals(['foo', 'bar', 'baz', 'qux']));
-
-    added = classes.add('qux');
-    expect(added, isFalse);
-    final list = new List.from(classes);
-    list.sort((a, b) => a.compareTo(b));
-    expect(list, equals(['bar', 'baz', 'foo', 'qux']),
-        reason: "The class set shouldn't have duplicate elements.");
-  });
-
-  test('add-bad', () {
-    final classes = makeClassSet();
-    expect(() => classes.add(''), throws);
-    expect(() => classes.add('foo bar'), throws);
-  });
-
-  test('remove', () {
-    final classes = makeClassSet();
-    classes.remove('bar');
-    expect(classes, equals(['foo', 'baz']));
-    classes.remove('qux');
-    expect(classes, equals(['foo', 'baz']));
-  });
-
-  test('remove-bad', () {
-    final classes = makeClassSet();
-    expect(() => classes.remove(''), throws);
-    expect(() => classes.remove('foo bar'), throws);
-  });
-
-  test('toggle', () {
-    final classes = makeClassSet();
-    classes.toggle('bar');
-    expect(classes, equals(['foo', 'baz']));
-    classes.toggle('qux');
-    expect(classes, equals(['foo', 'baz', 'qux']));
-
-    classes.toggle('qux', true);
-    expect(classes, equals(['foo', 'baz', 'qux']));
-    classes.toggle('qux', false);
-    expect(classes, equals(['foo', 'baz']));
-    classes.toggle('qux', false);
-    expect(classes, equals(['foo', 'baz']));
-    classes.toggle('qux', true);
-    expect(classes, equals(['foo', 'baz', 'qux']));
-  });
-
-  test('toggle-bad', () {
-    final classes = makeClassSet();
-    expect(() => classes.toggle(''), throws);
-    expect(() => classes.toggle('', true), throws);
-    expect(() => classes.toggle('', false), throws);
-    expect(() => classes.toggle('foo bar'), throws);
-    expect(() => classes.toggle('foo bar', true), throws);
-    expect(() => classes.toggle('foo bar', false), throws);
-  });
-
-  test('addAll', () {
-    final classes = makeClassSet();
-    classes.addAll(['bar', 'qux', 'bip']);
-    expect(classes, equals(['foo', 'bar', 'baz', 'qux', 'bip']));
-  });
-
-  test('removeAll', () {
-    final classes = makeClassSet();
-    classes.removeAll(['bar', 'baz', 'qux']);
-    expect(classes, equals(['foo']));
-  });
-
-  test('toggleAll', () {
-    final classes = makeClassSet();
-    classes.toggleAll(['bar', 'foo']);
-    expect(classes, equals(['baz']));
-    classes.toggleAll(['qux', 'quux']);
-    expect(classes, equals(['baz', 'qux', 'quux']));
-    classes.toggleAll(['bar', 'foo'], true);
-    expect(classes, equals(['baz', 'qux', 'quux', 'bar', 'foo']));
-    classes.toggleAll(['baz', 'quux'], false);
-    expect(classes, equals(['qux', 'bar', 'foo']));
-  });
-
-  test('retainAll', () {
-    final classes = makeClassSet();
-    classes.retainAll(['bar', 'baz', 'qux']);
-    expect(classes, equals(['bar', 'baz']));
-  });
-
-  test('removeWhere', () {
-    final classes = makeClassSet();
-    classes.removeWhere((s) => s.startsWith('b'));
-    expect(classes, equals(['foo']));
-  });
-
-  test('retainWhere', () {
-    final classes = makeClassSet();
-    classes.retainWhere((s) => s.startsWith('b'));
-    expect(classes, equals(['bar', 'baz']));
-  });
-
-  test('containsAll', () {
-    final classes = makeClassSet();
-    expect(classes.containsAll(['foo', 'baz']), isTrue);
-    expect(classes.containsAll(['foo', 'qux']), isFalse);
-    expect(classes.containsAll(['foo', 'baz'].toSet()), isTrue);
-    expect(classes.containsAll(['foo', 'qux'].toSet()), isFalse);
-  });
-
-  test('intersection', () {
-    final classes = makeClassSet();
-    expect(classes.intersection(['foo', 'qux', 'baz'].toSet()),
-        unorderedEquals(['foo', 'baz']));
-  });
-
-  test('clear', () {
-    final classes = makeClassSet();
-    classes.clear();
-    expect(classes, equals([]));
-  });
-
-  test('order', () {
-    var classes = makeClassSet();
-    classes.add('aardvark');
-    expect(classes, equals(['foo', 'bar', 'baz', 'aardvark']));
-    classes.toggle('baz');
-    expect(classes, equals(['foo', 'bar', 'aardvark']));
-    classes.toggle('baz');
-    expect(classes, equals(['foo', 'bar', 'aardvark', 'baz']));
-  });
-
-  tearDown(listElementTearDown);
-
-  test('list_view', () {
-    // Test that the 'view' helper function is behaving.
-    var elements = listElementSetup();
-    expect(view(elements.classes), '[classy, lassy, meta, quux, qux]');
-    expect(
-        view(elements), '[[quux, qux], [meta], [classy, lassy], [lassy, qux]]');
-  });
-
-  test('listClasses=', () {
-    var elements = listElementSetup();
-    elements.classes = ['foo', 'qux'];
-    elements = document.querySelectorAll('li');
-    for (Element e in elements) {
-      expect(e.classes, equals(['foo', 'qux']));
-      expect(extractClasses(e), equals(['foo', 'qux']));
-    }
-
-    elements.classes = [];
-    expect(view(elements.classes), '[]');
-    expect(view(elements), '[[], [], [], []]');
-  });
-
-  test('listMap', () {
-    var elements = listElementSetup();
-    expect(elements.classes.map((c) => c.toUpperCase()).toList(),
-        unorderedEquals(['QUX', 'QUUX', 'META', 'CLASSY', 'LASSY']));
-  });
-
-  test('listContains', () {
-    var elements = listElementSetup();
-    expect(elements.classes.contains('lassy'), isTrue);
-    expect(elements.classes.contains('foo'), isFalse);
-  });
-
-  test('listAdd', () {
-    var elements = listElementSetup();
-    var added = elements.classes.add('lassie');
-    expect(added, isNull);
-
-    expect(view(elements.classes), '[classy, lassie, lassy, meta, quux, qux]');
-    expect(
-        view(elements),
-        '[[lassie, quux, qux], [lassie, meta], [classy, lassie, lassy], '
-        '[lassie, lassy, qux]]');
-  });
-
-  test('listRemove', () {
-    var elements = listElementSetup();
-    expect(elements.classes.remove('lassi'), isFalse);
-    expect(view(elements.classes), '[classy, lassy, meta, quux, qux]');
-    expect(
-        view(elements), '[[quux, qux], [meta], [classy, lassy], [lassy, qux]]');
-
-    expect(elements.classes.remove('qux'), isTrue);
-    expect(view(elements.classes), '[classy, lassy, meta, quux]');
-    expect(view(elements), '[[quux], [meta], [classy, lassy], [lassy]]');
-  });
-
-  test('listToggle', () {
-    var elements = listElementSetup();
-    elements.classes.toggle('qux');
-    expect(view(elements.classes), '[classy, lassy, meta, quux, qux]');
-    expect(
-        view(elements), '[[quux], [meta, qux], [classy, lassy, qux], [lassy]]');
-  });
-
-  test('listAddAll', () {
-    var elements = listElementSetup();
-    elements.classes.addAll(['qux', 'lassi', 'sassy']);
-    expect(view(elements.classes),
-        '[classy, lassi, lassy, meta, quux, qux, sassy]');
-    expect(
-        view(elements),
-        '[[lassi, quux, qux, sassy], [lassi, meta, qux, sassy], '
-        '[classy, lassi, lassy, qux, sassy], [lassi, lassy, qux, sassy]]');
-  });
-
-  test('listRemoveAll', () {
-    var elements = listElementSetup();
-    elements.classes.removeAll(['qux', 'lassy', 'meta']);
-    expect(view(elements.classes), '[classy, quux]');
-    expect(view(elements), '[[quux], [], [classy], []]');
-  });
-
-  test('listToggleAll', () {
-    var elements = listElementSetup();
-    elements.classes.toggleAll(['qux', 'meta', 'mornin']);
-    expect(view(elements.classes), '[classy, lassy, meta, mornin, quux, qux]');
-    expect(
-        view(elements),
-        '[[meta, mornin, quux], [mornin, qux], '
-        '[classy, lassy, meta, mornin, qux], [lassy, meta, mornin]]');
-  });
-
-  test('listRetainAll', () {
-    var elements = listElementSetup();
-    elements.classes.retainAll(['bar', 'baz', 'qux']);
-    expect(view(elements.classes), '[qux]');
-    expect(view(elements), '[[qux], [], [], [qux]]');
-  });
-
-  test('listRemoveWhere', () {
-    var elements = listElementSetup();
-    elements.classes.removeWhere((s) => s.startsWith('q'));
-    expect(view(elements.classes), '[classy, lassy, meta]');
-    expect(view(elements), '[[], [meta], [classy, lassy], [lassy]]');
-  });
-
-  test('listRetainWhere', () {
-    var elements = listElementSetup();
-    elements.classes.retainWhere((s) => s.startsWith('q'));
-    expect(view(elements.classes), '[quux, qux]');
-    expect(view(elements), '[[quux, qux], [], [], [qux]]');
-  });
-
-  test('listContainsAll', () {
-    var elements = listElementSetup();
-    expect(elements.classes.containsAll(['qux', 'meta', 'mornin']), isFalse);
-    expect(elements.classes.containsAll(['qux', 'lassy', 'classy']), isTrue);
-  });
-}
diff --git a/tests/lib_2/html/element_constructor_1_test.dart b/tests/lib_2/html/element_constructor_1_test.dart
deleted file mode 100644
index 50e24510728..00000000000
--- a/tests/lib_2/html/element_constructor_1_test.dart
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Put universally passing event constructors in this file.
-// Move constructors that fail on some configuration to their own
-// element_constructor_foo_test.dart file.
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  var isAnchorElement =
-      predicate((x) => x is AnchorElement, 'is an AnchorElement');
-  var isAreaElement = predicate((x) => x is AreaElement, 'is an AreaElement');
-  var isDivElement = predicate((x) => x is DivElement, 'is a DivElement');
-  var isCanvasElement =
-      predicate((x) => x is CanvasElement, 'is a CanvasElement');
-  var isParagraphElement =
-      predicate((x) => x is ParagraphElement, 'is a ParagraphElement');
-  var isSpanElement = predicate((x) => x is SpanElement, 'is a SpanElement');
-  var isSelectElement =
-      predicate((x) => x is SelectElement, 'is a SelectElement');
-
-  test('anchor1', () {
-    var e = new AnchorElement();
-    expect(e, isAnchorElement);
-  });
-
-  test('anchor2', () {
-    var e = new AnchorElement(href: '#blah');
-    expect(e, isAnchorElement);
-    expect(e.href.endsWith('#blah'), isTrue);
-  });
-
-  test('area', () {
-    var e = new AreaElement();
-    expect(e, isAreaElement);
-  });
-
-  // AudioElement tested in audioelement_test.dart
-
-  test('div', () {
-    var e = new DivElement();
-    expect(e, isDivElement);
-  });
-
-  test('canvas1', () {
-    var e = new CanvasElement();
-    expect(e, isCanvasElement);
-  });
-
-  test('canvas2', () {
-    var e = new CanvasElement(height: 100, width: 200);
-    expect(e, isCanvasElement);
-    expect(e.width, 200);
-    expect(e.height, 100);
-  });
-
-  test('p', () {
-    var e = new ParagraphElement();
-    expect(e, isParagraphElement);
-  });
-
-  test('span', () {
-    var e = new SpanElement();
-    expect(e, isSpanElement);
-  });
-
-  test('select', () {
-    var e = new SelectElement();
-    expect(e, isSelectElement);
-  });
-}
diff --git a/tests/lib_2/html/element_dimensions_test.dart b/tests/lib_2/html/element_dimensions_test.dart
deleted file mode 100644
index ecadde45d7a..00000000000
--- a/tests/lib_2/html/element_dimensions_test.dart
+++ /dev/null
@@ -1,262 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  var isElement = predicate((x) => x is Element, 'is an Element');
-  var isCanvasElement =
-      predicate((x) => x is CanvasElement, 'is a CanvasElement');
-  var isDivElement = predicate((x) => x is DivElement, 'is a isDivElement');
-
-  var div = new DivElement();
-  div.id = 'test';
-  document.body.nodes.add(div);
-
-  void initDiv() {
-    var style = div.style;
-    style
-      ..padding = '4px'
-      ..border = '0px solid #fff'
-      ..margin = '6px'
-      ..height = '10px'
-      ..width = '11px'
-      ..boxSizing = 'content-box'
-      ..overflow = 'visible';
-  }
-
-  div.nodes.addAll([
-    new DivElement(),
-    new CanvasElement(),
-    new DivElement(),
-    new Text('Hello'),
-    new DivElement(),
-    new Text('World'),
-    new CanvasElement()
-  ]);
-
-  group('dimensions', () {
-    setUp(initDiv);
-
-    test('contentEdge.height', () {
-      var all1 = querySelectorAll('#test');
-
-      expect(all1.contentEdge.height, 10);
-      expect(all1[0].getComputedStyle().getPropertyValue('height'), '10px');
-
-      all1.contentEdge.height = new Dimension.px(600);
-      all1.contentEdge.height = 600;
-      expect(all1.contentEdge.height, 600);
-      expect(all1[0].getComputedStyle().getPropertyValue('height'), '600px');
-      all1[0].style.visibility = 'hidden';
-      expect(all1.contentEdge.height, 600);
-      all1[0].style.visibility = 'visible';
-
-      // If user passes in a negative number, set height to 0.
-      all1.contentEdge.height = new Dimension.px(-1);
-      expect(all1.contentEdge.height, 0);
-
-      // Adding padding or border shouldn't affect the height for
-      // non-box-sizing.
-      div.style.padding = '20pc';
-      expect(all1.contentEdge.height, 0);
-      div.style.border = '2px solid #fff';
-      expect(all1.contentEdge.height, 0);
-    });
-
-    test('contentEdge.height with border-box', () {
-      var all1 = document.querySelectorAll('#test');
-      div.style.boxSizing = 'border-box';
-      expect(all1.contentEdge.height, 2);
-      div.style.padding = '20pc';
-      expect(all1.contentEdge.height, 0);
-      div.style.border = '2px solid #fff';
-      expect(all1.contentEdge.height, 0);
-    });
-
-    test('contentEdge.width', () {
-      var all1 = document.querySelectorAll('#test');
-      expect(all1.contentEdge.width, 11);
-      expect(all1[0].getComputedStyle().getPropertyValue('width'), '11px');
-
-      all1.contentEdge.width = new Dimension.px(600);
-      expect(all1.contentEdge.width, 600);
-      expect(all1[0].getComputedStyle().getPropertyValue('width'), '600px');
-      all1[0].style.visibility = 'hidden';
-      expect(all1.contentEdge.width, 600);
-      all1[0].style.visibility = 'visible';
-
-      // If user passes in a negative number, set width to 0.
-      all1.contentEdge.width = new Dimension.px(-1);
-      expect(all1.contentEdge.width, 0);
-
-      // Adding padding or border shouldn't affect the width.
-      div.style.padding = '20pc';
-      expect(all1.contentEdge.width, 0);
-      div.style.border = '2px solid #fff';
-      expect(all1.contentEdge.width, 0);
-    });
-
-    test('contentEdge.width with border-box', () {
-      var all1 = document.querySelectorAll('#test');
-      div.style.boxSizing = 'border-box';
-      expect(all1.contentEdge.width, 3);
-      div.style.padding = '20pc';
-      expect(all1.contentEdge.width, 0);
-      div.style.border = '2px solid #fff';
-      expect(all1.contentEdge.width, 0);
-    });
-
-    test('paddingEdge.height', () {
-      var all1 = document.querySelectorAll('#test');
-      expect(all1.paddingEdge.height, 18);
-      all1[0].style.visibility = 'hidden';
-      expect(all1.paddingEdge.height, 18);
-      all1[0].style.visibility = 'visible';
-
-      // Adding border shouldn't affect the paddingEdge.height.
-      div.style.border = '2px solid #fff';
-      expect(all1.paddingEdge.height, 18);
-      // Adding padding should affect the paddingEdge.height.
-      div.style.padding = '20pc';
-      expect(all1.paddingEdge.height, 650);
-    });
-
-    test('paddingEdge.height with border-box', () {
-      var all1 = document.querySelectorAll('#test');
-      div.style.boxSizing = 'border-box';
-      expect(all1.paddingEdge.height, 10);
-      div.style.padding = '20pc';
-      expect(all1.paddingEdge.height, 640);
-      div.style.border = '2px solid #fff';
-      expect(all1.paddingEdge.height, 640);
-    });
-
-    test('paddingEdge.width', () {
-      var all1 = document.querySelectorAll('#test');
-      expect(all1.paddingEdge.width, 19);
-      all1[0].style.visibility = 'hidden';
-      expect(all1.paddingEdge.width, 19);
-      all1[0].style.visibility = 'visible';
-
-      // Adding border shouldn't affect the width.
-      div.style.border = '2px solid #fff';
-      expect(all1.paddingEdge.width, 19);
-
-      // Adding padding should affect the paddingEdge.width.
-      div.style.padding = '20pc';
-      expect(all1.paddingEdge.width, 651);
-    });
-
-    test('paddingEdge.width with border-box', () {
-      var all1 = document.querySelectorAll('#test');
-      div.style.boxSizing = 'border-box';
-      expect(all1.paddingEdge.width, 11);
-      div.style.padding = '20pc';
-      expect(all1.paddingEdge.width, 640);
-      div.style.border = '2px solid #fff';
-      expect(all1.paddingEdge.width, 640);
-    });
-
-    test('borderEdge.height and marginEdge.height', () {
-      var all1 = document.querySelectorAll('#test');
-      expect(div.borderEdge.height, 18);
-      expect(div.marginEdge.height, 30);
-      expect(all1.borderEdge.height, 18);
-      expect(all1.marginEdge.height, 30);
-      all1[0].style.visibility = 'hidden';
-      expect(all1.borderEdge.height, 18);
-      all1[0].style.visibility = 'visible';
-
-      // Adding border should affect the borderEdge.height.
-      div.style.border = '2px solid #fff';
-      expect(all1.borderEdge.height, 22);
-      // Adding padding should affect the borderEdge.height.
-      div.style.padding = '20pc';
-      expect(all1.borderEdge.height, 654);
-      expect(all1.marginEdge.height, 666);
-    });
-
-    test('borderEdge.height and marginEdge.height with border-box', () {
-      var all1 = document.querySelectorAll('#test');
-      div.style.boxSizing = 'border-box';
-      expect(all1.borderEdge.height, 10);
-      expect(all1.marginEdge.height, 22);
-      div.style.padding = '20pc';
-      expect(all1.borderEdge.height, 640);
-      expect(all1.marginEdge.height, 652);
-      div.style.border = '2px solid #fff';
-      expect(all1.borderEdge.height, 644);
-      expect(all1.marginEdge.height, 656);
-    });
-
-    test('borderEdge.width and marginEdge.width', () {
-      var all1 = document.querySelectorAll('#test');
-      expect(all1.borderEdge.width, 19);
-      expect(all1.marginEdge.width, 31);
-
-      // Adding border should affect the width.
-      div.style.border = '2px solid #fff';
-      expect(all1.borderEdge.width, 23);
-
-      // Adding padding should affect the borderEdge.width.
-      div.style.padding = '20pc';
-      expect(all1.borderEdge.width, 655);
-      expect(all1.marginEdge.width, 667);
-    });
-
-    test('borderEdge.width and marginEdge.width with border-box', () {
-      var all1 = document.querySelectorAll('#test');
-      div.style.boxSizing = 'border-box';
-      expect(all1.borderEdge.width, 11);
-      expect(all1.marginEdge.width, 23);
-      div.style.padding = '20pc';
-      expect(all1.borderEdge.width, 640);
-      expect(all1.marginEdge.width, 652);
-      div.style.border = '2px solid #fff';
-      expect(all1.borderEdge.width, 644);
-      expect(all1.marginEdge.width, 656);
-    });
-
-    test('left and top', () {
-      div.style.border = '1px solid #fff';
-      div.style.margin = '6px 7px';
-      div.style.padding = '4px 5px';
-      var all1 = document.querySelectorAll('#test');
-
-      expect(all1.borderEdge.left, all1[0].getBoundingClientRect().left);
-      expect(all1.borderEdge.top, all1[0].getBoundingClientRect().top);
-
-      expect(
-          all1.contentEdge.left, all1[0].getBoundingClientRect().left + 1 + 5);
-      expect(all1.contentEdge.top, all1[0].getBoundingClientRect().top + 1 + 4);
-
-      expect(all1.marginEdge.left, all1[0].getBoundingClientRect().left - 7);
-      expect(all1.marginEdge.top, all1[0].getBoundingClientRect().top - 6);
-
-      expect(all1.paddingEdge.left, all1[0].getBoundingClientRect().left + 1);
-      expect(all1.paddingEdge.top, all1[0].getBoundingClientRect().top + 1);
-    });
-
-    test('setHeight ElementList', () {
-      div.style.border = '1px solid #fff';
-      div.style.margin = '6px 7px';
-      div.style.padding = '4px 5px';
-      var all1 = document.querySelectorAll('div');
-      all1.contentEdge.height = new Dimension.px(200);
-      all1.contentEdge.height = 200;
-      for (Element elem in all1) {
-        expect(elem.contentEdge.height, 200);
-      }
-      all1.contentEdge.height = new Dimension.px(10);
-      for (Element elem in all1) {
-        expect(elem.contentEdge.height, 10);
-      }
-    });
-  });
-}
diff --git a/tests/lib_2/html/element_offset_test.dart b/tests/lib_2/html/element_offset_test.dart
deleted file mode 100644
index 19cd2c62913..00000000000
--- a/tests/lib_2/html/element_offset_test.dart
+++ /dev/null
@@ -1,138 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  void initPage() {
-    var level1 = new UListElement()
-      ..classes.add('level-1')
-      ..children.add(new LIElement()..innerHtml = 'I');
-    var itemii = new LIElement()
-      ..classes.add('item-ii')
-      ..style.position = 'relative'
-      ..style.top = '4px'
-      ..innerHtml = 'II';
-    level1.children.add(itemii);
-    var level2 = new UListElement();
-    itemii.children.add(level2);
-    var itema = new LIElement()
-      ..classes.add('item-a')
-      ..innerHtml = 'A';
-    var item1 = new LIElement()
-      ..classes.add('item-1')
-      ..innerHtml = '1';
-    var item2 = new LIElement()
-      ..classes.add('item-2')
-      ..innerHtml = '2';
-    var level3 = new UListElement()..children.addAll([item1, item2]);
-    var itemb = new LIElement()
-      ..classes.add('item-b')
-      ..style.position = 'relative'
-      ..style.top = '20px'
-      ..style.left = '150px'
-      ..innerHtml = 'B'
-      ..children.add(level3);
-    level2.children.addAll([itema, itemb, new LIElement()..innerHtml = 'C']);
-    document.body.append(level1);
-    document.body.style.whiteSpace = 'nowrap';
-
-    var bar = new DivElement()..classes.add('bar');
-    var style = bar.style;
-    style
-      ..position = 'absolute'
-      ..top = '8px'
-      ..left = '90px';
-    var baz = new DivElement()..classes.add('baz');
-    style = baz.style;
-    style
-      ..position = 'absolute'
-      ..top = '600px'
-      ..left = '7000px';
-    bar.children.add(baz);
-
-    var quux = new DivElement()..classes.add('quux');
-    var qux = new DivElement()..classes.add('qux')..children.add(quux);
-
-    document.body.append(bar);
-    document.body.append(qux);
-  }
-
-  group('offset', () {
-    setUp(initPage);
-
-    test('offsetTo', () {
-      var itema = querySelector('.item-a');
-      var itemb = querySelector('.item-b');
-      var item1 = querySelector('.item-1');
-      var itemii = querySelector('.item-ii');
-      var level1 = querySelector('.level-1');
-      var baz = querySelector('.baz');
-      var bar = querySelector('.bar');
-      var qux = querySelector('.qux');
-      var quux = querySelector('.quux');
-
-      var point = itema.offsetTo(itemii);
-      expect(point.x, 40);
-      expect(point.y, inInclusiveRange(16, 20));
-
-      expect(baz.offsetTo(bar).x, 7000);
-      expect(baz.offsetTo(bar).y, inInclusiveRange(599, 604));
-
-      qux.style.position = 'fixed';
-      expect(quux.offsetTo(qux).x, 0);
-      expect(quux.offsetTo(qux).y, 0);
-
-      point = item1.offsetTo(itemb);
-      expect(point.x, 40);
-      expect(point.y, inInclusiveRange(16, 20));
-      point = itemb.offsetTo(itemii);
-      expect(point.x, 190);
-      expect(point.y, inInclusiveRange(52, 60));
-      point = item1.offsetTo(itemii);
-      expect(point.x, 230);
-      expect(point.y, inInclusiveRange(68, 80));
-    });
-
-    test('documentOffset', () {
-      var bar = querySelector('.bar');
-      var baz = querySelector('.baz');
-      var qux = querySelector('.qux');
-      var quux = querySelector('.quux');
-      var itema = querySelector('.item-a');
-      var itemb = querySelector('.item-b');
-      var item1 = querySelector('.item-1');
-      var itemii = querySelector('.item-ii');
-
-      expect(itema.documentOffset.x, 88);
-      expect(itema.documentOffset.y, inInclusiveRange(111, 160));
-
-      expect(itemii.documentOffset.x, 48);
-      expect(itemii.documentOffset.y, inInclusiveRange(95, 145));
-
-      expect(itemb.documentOffset.x, 238);
-      expect(itemb.documentOffset.y, inInclusiveRange(147, 205));
-
-      expect(item1.documentOffset.x, 278);
-      expect(item1.documentOffset.y, inInclusiveRange(163, 222));
-
-      expect(bar.documentOffset.x, 90);
-      expect(bar.documentOffset.y, 8);
-
-      expect(baz.documentOffset.x, 7090);
-      expect(baz.documentOffset.y, 608);
-
-      expect(qux.documentOffset.x, 8);
-      expect(qux.documentOffset.y, inInclusiveRange(203, 240));
-
-      expect(quux.documentOffset.x, 8);
-      expect(quux.documentOffset.y, inInclusiveRange(203, 240));
-    });
-  });
-}
diff --git a/tests/lib_2/html/element_test.dart b/tests/lib_2/html/element_test.dart
deleted file mode 100644
index 4e658273505..00000000000
--- a/tests/lib_2/html/element_test.dart
+++ /dev/null
@@ -1,1011 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library ElementTest;
-
-import 'package:async_helper/async_minitest.dart';
-import 'package:expect/expect.dart';
-import 'dart:async';
-import 'dart:html';
-import 'dart:svg' as svg;
-import 'utils.dart';
-
-expectLargeRect(Rectangle rect) {
-  expect(rect.top, 0);
-  expect(rect.left, 0);
-  expect(rect.width, greaterThan(100));
-  expect(rect.height, greaterThan(100));
-  expect(rect.bottom, rect.top + rect.height);
-  expect(rect.right, rect.left + rect.width);
-}
-
-void testUnsupported(String name, void f()) {
-  test(name, () => Expect.throwsUnsupportedError(f));
-}
-
-main() {
-  var isHRElement = predicate((x) => x is HRElement, 'is a HRElement');
-  var isBRElement = predicate((x) => x is BRElement, 'is a BRElement');
-  var isInputElement =
-      predicate((x) => x is InputElement, 'is an InputElement');
-  var isImageElement =
-      predicate((x) => x is ImageElement, 'is an ImageElement');
-  var isSpanElement = predicate((x) => x is SpanElement, 'is a SpanElement');
-  var isAnchorElement =
-      predicate((x) => x is AnchorElement, 'is an AnchorElement');
-  var isElementList =
-      predicate((x) => x is List<Element>, 'is a List<Element>');
-  var isElementIterable =
-      predicate((x) => x is Iterable<Element>, 'is an Iterable<Element>');
-  var isHeadingElement =
-      predicate((x) => x is HeadingElement, 'is a HeadingElement');
-
-  Element makeElement() => new Element.tag('div');
-
-  Element makeElementWithChildren() =>
-      new Element.html("<div><br/><img/><input/></div>");
-
-  group('position', () {
-    test('computedStyle', () {
-      final element = document.body;
-      var style = element.getComputedStyle();
-      expect(style.getPropertyValue('left'), 'auto');
-    });
-
-    test('client position synchronous', () {
-      final container = new Element.tag("div");
-      container.style.position = 'absolute';
-      container.style.top = '8px';
-      container.style.left = '9px';
-      final element = new Element.tag("div");
-      element.style.width = '200px';
-      element.style.height = '200px';
-      container.children.add(element);
-      document.body.children.add(container);
-
-      expect(element.client.width, greaterThan(100));
-      expect(element.client.height, greaterThan(100));
-      expect(element.offset.width, greaterThan(100));
-      expect(element.offset.height, greaterThan(100));
-      expect(element.scrollWidth, greaterThan(100));
-      expect(element.scrollHeight, greaterThan(100));
-      expect(element.getBoundingClientRect().left, 9);
-      expect(element.getBoundingClientRect().top, 8);
-
-      expect(element.documentOffset.x, 9);
-      expect(element.documentOffset.y, 8);
-      container.remove();
-    });
-  });
-
-  group('constructors', () {
-    test('error', () {
-      Expect.throwsStateError(() => new Element.html('<br/><br/>'));
-    });
-
-    test('.html has no parent',
-        () => expect(new Element.html('<br/>').parent, isNull));
-
-    test('.html table', () {
-      // http://developers.whatwg.org/tabular-data.html#tabular-data
-      TableElement node = new Element.html('''
-<table>
- <caption>Characteristics with positive and negative sides</caption>
- <thead>
-  <tr>
-   <th id="n"> Negative
-   <th> Characteristic
-   <th> Positive
- <tbody>
-  <tr>
-   <td headers="n r1"> Sad
-   <th id="r1"> Mood
-   <td> Happy
-  <tr>
-   <td headers="n r2"> Failing
-   <th id="r2"> Grade
-   <td> Passing
-</table>''');
-      expect(node, predicate((x) => x is TableElement, 'is a TableElement'));
-      expect(node.tagName, 'TABLE');
-      expect(node.parent, isNull);
-      expect(node.caption.innerHtml,
-          'Characteristics with positive and negative sides');
-      expect(node.tHead.rows.length, 1);
-      expect(node.tHead.rows[0].cells.length, 3);
-      expect(node.tBodies.length, 1);
-      expect(node.tBodies[0].rows.length, 2);
-      expect(node.tBodies[0].rows[1].cells.map((c) => c.innerHtml),
-          [' Failing\n   ', ' Grade\n   ', ' Passing\n']);
-    });
-
-    test('.html caption', () {
-      var table = new TableElement();
-      TableCaptionElement node =
-          table.createFragment('<caption><p>Table 1.').nodes.single;
-      expect(
-          node,
-          predicate(
-              (x) => x is TableCaptionElement, 'is a TableCaptionElement'));
-      expect(node.tagName, 'CAPTION');
-      expect(node.parent, isNull);
-      expect(node.innerHtml, '<p>Table 1.</p>');
-    });
-
-    test('.html colgroup', () {
-      var table = new TableElement();
-      TableColElement node =
-          table.createFragment('<colgroup> <col> <col> <col>').nodes.single;
-      expect(
-          node, predicate((x) => x is TableColElement, 'is a TableColElement'));
-      expect(node.tagName, 'COLGROUP');
-      expect(node.parent, isNull);
-      expect(node.innerHtml, ' <col> <col> <col>');
-    });
-
-    test('.html tbody', () {
-      var innerHtml = '<tr><td headers="n r1">Sad</td><td>Happy</td></tr>';
-      var table = new TableElement();
-      TableSectionElement node =
-          table.createFragment('<tbody>$innerHtml').nodes.single;
-      expect(
-          node,
-          predicate(
-              (x) => x is TableSectionElement, 'is a TableSectionElement'));
-      expect(node.tagName, 'TBODY');
-      expect(node.parent, isNull);
-      expect(node.rows.length, 1);
-      expect(node.rows[0].cells.length, 2);
-      expect(node.innerHtml, innerHtml);
-    });
-
-    test('.html thead', () {
-      var innerHtml = '<tr><th id="n">Negative</th><th>Positive</th></tr>';
-      var table = new TableElement();
-      TableSectionElement node =
-          table.createFragment('<thead>$innerHtml').nodes.single;
-      expect(
-          node,
-          predicate(
-              (x) => x is TableSectionElement, 'is a TableSectionElement'));
-      expect(node.tagName, 'THEAD');
-      expect(node.parent, isNull);
-      expect(node.rows.length, 1);
-      expect(node.rows[0].cells.length, 2);
-      expect(node.innerHtml, innerHtml);
-    });
-
-    test('.html tfoot', () {
-      var innerHtml = '<tr><th>percentage</th><td>34.3%</td></tr>';
-      var table = new TableElement();
-      TableSectionElement node =
-          table.createFragment('<tfoot>$innerHtml').nodes.single;
-      expect(
-          node,
-          predicate(
-              (x) => x is TableSectionElement, 'is a TableSectionElement'));
-      expect(node.tagName, 'TFOOT');
-      expect(node.parent, isNull);
-      expect(node.rows.length, 1);
-      expect(node.rows[0].cells.length, 2);
-      expect(node.innerHtml, innerHtml);
-    });
-
-    test('.html tr', () {
-      var table = new TableElement();
-      document.body.append(table);
-      var tBody = table.createTBody();
-      TableRowElement node =
-          tBody.createFragment('<tr><td>foo<td>bar').nodes.single;
-      expect(
-          node, predicate((x) => x is TableRowElement, 'is a TableRowElement'));
-      expect(node.tagName, 'TR');
-      expect(node.parent, isNull);
-      expect(node.cells.map((c) => c.innerHtml), ['foo', 'bar']);
-    });
-
-    test('.html td', () {
-      var table = new TableElement();
-      document.body.append(table);
-      var tBody = table.createTBody();
-      var tRow = tBody.addRow();
-      TableCellElement node = tRow.createFragment('<td>foobar').nodes.single;
-      expect(node,
-          predicate((x) => x is TableCellElement, 'is a TableCellElement'));
-      expect(node.tagName, 'TD');
-      expect(node.parent, isNull);
-      expect(node.innerHtml, 'foobar');
-    });
-
-    test('.html th', () {
-      var table = new TableElement();
-      document.body.append(table);
-      var tBody = table.createTBody();
-      var tRow = tBody.addRow();
-      TableCellElement node = tRow.createFragment('<th>foobar').nodes.single;
-      expect(node,
-          predicate((x) => x is TableCellElement, 'is a TableCellElement'));
-      expect(node.tagName, 'TH');
-      expect(node.parent, isNull);
-      expect(node.innerHtml, 'foobar');
-    });
-
-    test('.html can fire events', () {
-      var e = new Element.html('<button>aha</button>');
-      var gotEvent = false;
-      e.onClick.listen((_) {
-        gotEvent = true;
-      });
-      e.click();
-      expect(gotEvent, isTrue, reason: 'click should have raised click event');
-    });
-  });
-
-  group('eventListening', () {
-    test('streams', () {
-      final target = new TextAreaElement();
-
-      void testEvent(Stream stream, String type, [createEvent(String type)]) {
-        var firedOnEvent = false;
-        stream.listen((e) {
-          firedOnEvent = true;
-        });
-        expect(firedOnEvent, isFalse);
-        var event = createEvent != null ? createEvent(type) : new Event(type);
-        target.dispatchEvent(event);
-
-        expect(firedOnEvent, isTrue);
-      }
-
-      testEvent(target.onAbort, 'abort');
-      testEvent(target.onBeforeCopy, 'beforecopy');
-      testEvent(target.onBeforeCut, 'beforecut');
-      testEvent(target.onBeforePaste, 'beforepaste');
-      testEvent(target.onBlur, 'blur');
-      testEvent(target.onChange, 'change');
-      testEvent(
-          target.onContextMenu, 'contextmenu', (type) => new MouseEvent(type));
-      // We cannot test dispatching a true ClipboardEvent as the DOM does not
-      // provide a way to create a fake ClipboardEvent.
-      testEvent(target.onCopy, 'copy');
-      testEvent(target.onCut, 'cut');
-      testEvent(target.onPaste, 'paste');
-
-      testEvent(
-          target.onDoubleClick, 'dblclick', (type) => new MouseEvent(type));
-      testEvent(target.onDrag, 'drag', (type) => new MouseEvent(type));
-      testEvent(target.onDragEnd, 'dragend', (type) => new MouseEvent(type));
-      testEvent(
-          target.onDragEnter, 'dragenter', (type) => new MouseEvent(type));
-      testEvent(
-          target.onDragLeave, 'dragleave', (type) => new MouseEvent(type));
-      testEvent(target.onDragOver, 'dragover', (type) => new MouseEvent(type));
-      testEvent(
-          target.onDragStart, 'dragstart', (type) => new MouseEvent(type));
-      testEvent(target.onDrop, 'drop', (type) => new MouseEvent(type));
-      testEvent(target.onError, 'error');
-      testEvent(target.onFocus, 'focus');
-      testEvent(target.onFullscreenChange, 'webkitfullscreenchange');
-      testEvent(target.onInput, 'input');
-      testEvent(target.onInvalid, 'invalid');
-      testEvent(target.onKeyDown, 'keydown', (type) => new KeyboardEvent(type));
-      testEvent(
-          target.onKeyPress, 'keypress', (type) => new KeyboardEvent(type));
-      testEvent(target.onKeyUp, 'keyup', (type) => new KeyboardEvent(type));
-      testEvent(target.onLoad, 'load');
-      testEvent(
-          target.onMouseDown, 'mousedown', (type) => new MouseEvent(type));
-      testEvent(
-          target.onMouseMove, 'mousemove', (type) => new MouseEvent(type));
-      testEvent(target.onMouseOut, 'mouseout', (type) => new MouseEvent(type));
-      testEvent(
-          target.onMouseOver, 'mouseover', (type) => new MouseEvent(type));
-      testEvent(target.onMouseUp, 'mouseup', (type) => new MouseEvent(type));
-      testEvent(target.onReset, 'reset');
-      testEvent(target.onScroll, 'scroll');
-      testEvent(target.onSearch, 'search');
-      testEvent(target.onSelect, 'select');
-      testEvent(target.onSelectStart, 'selectstart');
-      testEvent(target.onSubmit, 'submit');
-      // We would prefer to create new touch events for this test via
-      // new TouchEvent(null, null, null, type)
-      // but that fails on desktop browsers as touch is not enabled.
-      testEvent(target.onTouchCancel, 'touchcancel');
-      testEvent(target.onTouchEnd, 'touchend');
-      testEvent(target.onTouchLeave, 'touchleave');
-      testEvent(target.onTouchMove, 'touchmove');
-      testEvent(target.onTouchStart, 'touchstart');
-    });
-  });
-
-  group('click', () {
-    test('clickEvent', () {
-      var e = new DivElement();
-      var firedEvent = false;
-      e.onClick.listen((event) {
-        firedEvent = true;
-      });
-      expect(firedEvent, false);
-      e.click();
-      expect(firedEvent, true);
-
-      var e2 = new DivElement();
-      var firedEvent2 = false;
-      e2.onClick.matches('.foo').listen((event) {
-        firedEvent2 = true;
-      });
-      e2.click();
-      expect(firedEvent2, false);
-      e2.classes.add('foo');
-      e2.click();
-      expect(firedEvent2, true);
-    });
-  });
-
-  group('attributes', () {
-    test('manipulation', () {
-      final element = new Element.html(
-          '''<div class="foo" style="overflow: hidden" data-foo="bar"
-                   data-foo2="bar2" dir="rtl">
-               </div>''',
-          treeSanitizer: new NullTreeSanitizer());
-      final attributes = element.attributes;
-      expect(attributes['class'], 'foo');
-      startsWith(match) => predicate((x) => x is String && x.startsWith(match));
-      expect(attributes['style'], startsWith('overflow: hidden'));
-      expect(attributes['data-foo'], 'bar');
-      expect(attributes['data-foo2'], 'bar2');
-      expect(attributes.length, 5);
-      expect(element.dataset.length, 2);
-      element.dataset['foo'] = 'baz';
-      expect(element.dataset['foo'], 'baz');
-      expect(attributes['data-foo'], 'baz');
-      attributes['data-foo2'] = 'baz2';
-      expect(attributes['data-foo2'], 'baz2');
-      expect(element.dataset['foo2'], 'baz2');
-      expect(attributes['dir'], 'rtl');
-
-      final dataset = element.dataset;
-      dataset.remove('foo2');
-      expect(attributes.length, 4);
-      expect(dataset.length, 1);
-      attributes.remove('style');
-      expect(attributes.length, 3);
-      dataset['foo3'] = 'baz3';
-      expect(dataset.length, 2);
-      expect(attributes.length, 4);
-      attributes['style'] = 'width: 300px;';
-      expect(attributes.length, 5);
-    });
-
-    test('namespaces', () {
-      var element =
-          new svg.SvgElement.svg('''<svg xmlns="http://www.w3.org/2000/svg"
-                  xmlns:xlink="http://www.w3.org/1999/xlink">
-            <image xlink:href="foo" data-foo="bar"/>
-          </svg>''').children[0];
-
-      var attributes = element.attributes;
-      expect(attributes.length, 1);
-      expect(attributes['data-foo'], 'bar');
-
-      var xlinkAttrs =
-          element.getNamespacedAttributes('http://www.w3.org/1999/xlink');
-      expect(xlinkAttrs.length, 1);
-      expect(xlinkAttrs['href'], 'foo');
-
-      xlinkAttrs.remove('href');
-      expect(xlinkAttrs.length, 0);
-
-      xlinkAttrs['href'] = 'bar';
-      expect(xlinkAttrs['href'], 'bar');
-
-      var randomAttrs = element.getNamespacedAttributes('http://example.com');
-      expect(randomAttrs.length, 0);
-      randomAttrs['href'] = 'bar';
-      expect(randomAttrs.length, 1);
-    });
-  });
-
-  group('children', () {
-    test('is a subset of nodes', () {
-      var el = new Element.html("<div>Foo<br/><img/></div>");
-      expect(el.nodes.length, 3);
-      expect(el.children.length, 2);
-      expect(el.nodes[1], el.children[0]);
-      expect(el.nodes[2], el.children[1]);
-    });
-
-    test('changes when an element is added to nodes', () {
-      var el = new Element.html("<div>Foo<br/><img/></div>");
-      el.nodes.add(new Element.tag('hr'));
-      expect(el.children.length, 3);
-      expect(el.children[2], isHRElement);
-      expect(el.nodes[3], el.children[2]);
-    });
-
-    test('changes nodes when an element is added', () {
-      var el = new Element.html("<div>Foo<br/><img/></div>");
-      el.children.add(new Element.tag('hr'));
-      expect(el.nodes.length, 4);
-      expect(el.nodes[3], isHRElement);
-      expect(el.children[2], el.nodes[3]);
-    });
-
-    test('last', () {
-      var el = makeElementWithChildren();
-      expect(el.children.last, isInputElement);
-    });
-
-    test('forEach', () {
-      var els = [];
-      var el = makeElementWithChildren();
-      el.children.forEach((n) => els.add(n));
-      expect(els[0], isBRElement);
-      expect(els[1], isImageElement);
-      expect(els[2], isInputElement);
-    });
-
-    test('where', () {
-      var filtered =
-          makeElementWithChildren().children.where((n) => n is ImageElement);
-      expect(1, filtered.length);
-      expect(filtered.first, isImageElement);
-      expect(filtered, isElementIterable);
-    });
-
-    test('every', () {
-      var el = makeElementWithChildren();
-      expect(el.children.every((n) => n is Element), isTrue);
-      expect(el.children.every((n) => n is InputElement), isFalse);
-    });
-
-    test('any', () {
-      var el = makeElementWithChildren();
-      expect(el.children.any((n) => n is InputElement), isTrue);
-      expect(el.children.any((n) => n is svg.SvgElement), isFalse);
-    });
-
-    test('isEmpty', () {
-      expect(makeElement().children.isEmpty, isTrue);
-      expect(makeElementWithChildren().children.isEmpty, isFalse);
-    });
-
-    test('length', () {
-      expect(makeElement().children.length, 0);
-      expect(makeElementWithChildren().children.length, 3);
-    });
-
-    test('[]', () {
-      var el = makeElementWithChildren();
-      expect(el.children[0], isBRElement);
-      expect(el.children[1], isImageElement);
-      expect(el.children[2], isInputElement);
-    });
-
-    test('[]=', () {
-      var el = makeElementWithChildren();
-      el.children[1] = new Element.tag('hr');
-      expect(el.children[0], isBRElement);
-      expect(el.children[1], isHRElement);
-      expect(el.children[2], isInputElement);
-    });
-
-    test('add', () {
-      var el = makeElement();
-      el.children.add(new Element.tag('hr'));
-      expect(el.children.last, isHRElement);
-    });
-
-    test('iterator', () {
-      var els = [];
-      var el = makeElementWithChildren();
-      for (var subel in el.children) {
-        els.add(subel);
-      }
-      expect(els[0], isBRElement);
-      expect(els[1], isImageElement);
-      expect(els[2], isInputElement);
-    });
-
-    test('addAll', () {
-      var el = makeElementWithChildren();
-      el.children.addAll([
-        new Element.tag('span'),
-        new Element.tag('a'),
-        new Element.tag('h1')
-      ]);
-      expect(el.children[0], isBRElement);
-      expect(el.children[1], isImageElement);
-      expect(el.children[2], isInputElement);
-      expect(el.children[3], isSpanElement);
-      expect(el.children[4], isAnchorElement);
-      expect(el.children[5], isHeadingElement);
-    });
-
-    test('insert', () {
-      var element = new DivElement();
-      element.children.insert(0, new BRElement());
-      expect(element.children[0], isBRElement);
-      element.children.insert(0, new HRElement());
-      expect(element.children[0], isHRElement);
-      element.children.insert(1, new ImageElement());
-      expect(element.children[1], isImageElement);
-      element.children.insert(element.children.length, new InputElement());
-      expect(element.children.last, isInputElement);
-    });
-
-    test('clear', () {
-      var el = makeElementWithChildren();
-      el.children.clear();
-      expect(el.children, equals([]));
-    });
-
-    test('removeLast', () {
-      var el = makeElementWithChildren();
-      expect(el.children.removeLast(), isInputElement);
-      expect(el.children.length, 2);
-      expect(el.children.removeLast(), isImageElement);
-      expect(el.children.length, 1);
-    });
-
-    test('sublist', () {
-      var el = makeElementWithChildren();
-      expect(el.children.sublist(1, 2), isElementList);
-    });
-
-    test('getRange', () {
-      var el = makeElementWithChildren();
-      expect(el.children.getRange(1, 2).length, 1);
-    });
-
-    test('retainWhere', () {
-      var el = makeElementWithChildren();
-      expect(el.children.length, 3);
-      el.children.retainWhere((e) => true);
-      expect(el.children.length, 3);
-
-      el = makeElementWithChildren();
-      expect(el.children.length, 3);
-      el.children.retainWhere((e) => false);
-      expect(el.children.length, 0);
-
-      el = makeElementWithChildren();
-      expect(el.children.length, 3);
-      el.children.retainWhere((e) => e.localName == 'input');
-      expect(el.children.length, 1);
-
-      el = makeElementWithChildren();
-      expect(el.children.length, 3);
-      el.children.retainWhere((e) => e.localName == 'br');
-      expect(el.children.length, 1);
-    });
-
-    test('removeWhere', () {
-      var el = makeElementWithChildren();
-      expect(el.children.length, 3);
-      el.children.removeWhere((e) => true);
-      expect(el.children.length, 0);
-
-      el = makeElementWithChildren();
-      expect(el.children.length, 3);
-      el.children.removeWhere((e) => false);
-      expect(el.children.length, 3);
-
-      el = makeElementWithChildren();
-      expect(el.children.length, 3);
-      el.children.removeWhere((e) => e.localName == 'input');
-      expect(el.children.length, 2);
-
-      el = makeElementWithChildren();
-      expect(el.children.length, 3);
-      el.children.removeWhere((e) => e.localName == 'br');
-      expect(el.children.length, 2);
-    });
-
-    testUnsupported('sort', () {
-      var l = makeElementWithChildren().children;
-      l.sort();
-    });
-
-    testUnsupported('setRange', () {
-      var l = makeElementWithChildren().children;
-      l.setRange(0, 0, []);
-    });
-
-    testUnsupported('replaceRange', () {
-      var l = makeElementWithChildren().children;
-      l.replaceRange(0, 0, []);
-    });
-
-    testUnsupported('removeRange', () {
-      var l = makeElementWithChildren().children;
-      l.removeRange(0, 1);
-    });
-
-    testUnsupported('insertAll', () {
-      var l = makeElementWithChildren().children;
-      l.insertAll(0, []);
-    });
-  });
-
-  group('matches', () {
-    test('matches', () {
-      var element = new DivElement();
-      document.body.append(element);
-      element.classes.add('test');
-
-      expect(element.matches('div'), true);
-      expect(element.matches('span'), false);
-      expect(element.matches('.test'), true);
-    });
-  });
-
-  group('querySelectorAll', () {
-    List<Element> getQuerySelectorAll() {
-      return new Element.html("""
-<div>
-  <hr/>
-  <a class='q' href='http://dartlang.org'>Dart!</a>
-  <p>
-    <span class='q'>Hello</span>,
-    <em>world</em>!
-  </p>
-  <hr class='q'/>
-</div>
-""").querySelectorAll('.q');
-    }
-
-    List<Element> getEmptyQuerySelectorAll() =>
-        new Element.tag('div').querySelectorAll('img');
-
-    test('last', () {
-      expect(getQuerySelectorAll().last, isHRElement);
-    });
-
-    test('forEach', () {
-      var els = [];
-      getQuerySelectorAll().forEach((el) => els.add(el));
-      expect(els[0], isAnchorElement);
-      expect(els[1], isSpanElement);
-      expect(els[2], isHRElement);
-    });
-
-    test('map', () {
-      var texts = getQuerySelectorAll().map((el) => el.text).toList();
-      expect(texts, equals(['Dart!', 'Hello', '']));
-    });
-
-    test('where', () {
-      var filtered =
-          getQuerySelectorAll().where((n) => n is SpanElement).toList();
-      expect(filtered.length, 1);
-      expect(filtered[0], isSpanElement);
-      expect(filtered, isElementList);
-    });
-
-    test('every', () {
-      var el = getQuerySelectorAll();
-      expect(el.every((n) => n is Element), isTrue);
-      expect(el.every((n) => n is SpanElement), isFalse);
-    });
-
-    test('any', () {
-      var el = getQuerySelectorAll();
-      expect(el.any((n) => n is SpanElement), isTrue);
-      expect(el.any((n) => n is svg.SvgElement), isFalse);
-    });
-
-    test('isEmpty', () {
-      expect(getEmptyQuerySelectorAll().isEmpty, isTrue);
-      expect(getQuerySelectorAll().isEmpty, isFalse);
-    });
-
-    test('length', () {
-      expect(getEmptyQuerySelectorAll().length, 0);
-      expect(getQuerySelectorAll().length, 3);
-    });
-
-    test('[]', () {
-      var els = getQuerySelectorAll();
-      expect(els[0], isAnchorElement);
-      expect(els[1], isSpanElement);
-      expect(els[2], isHRElement);
-    });
-
-    test('iterator', () {
-      var els = [];
-      for (var subel in getQuerySelectorAll()) {
-        els.add(subel);
-      }
-      expect(els[0], isAnchorElement);
-      expect(els[1], isSpanElement);
-      expect(els[2], isHRElement);
-    });
-
-    test('sublist', () {
-      expect(getQuerySelectorAll().sublist(1, 2) is List<Element>, isTrue);
-    });
-
-    testUnsupported(
-        '[]=', () => getQuerySelectorAll()[1] = new Element.tag('br'));
-    testUnsupported(
-        'add', () => getQuerySelectorAll().add(new Element.tag('br')));
-
-    testUnsupported('addAll', () {
-      getQuerySelectorAll().addAll([
-        new Element.tag('span'),
-        new Element.tag('a'),
-        new Element.tag('h1')
-      ]);
-    });
-
-    testUnsupported('sort', () => getQuerySelectorAll().sort((a1, a2) => 0));
-
-    testUnsupported('setRange', () {
-      getQuerySelectorAll().setRange(0, 1, [new BRElement()]);
-    });
-
-    testUnsupported(
-        'removeRange', () => getQuerySelectorAll().removeRange(0, 1));
-
-    testUnsupported('clear', () => getQuerySelectorAll().clear());
-
-    testUnsupported('removeLast', () => getQuerySelectorAll().removeLast());
-  });
-
-  group('functional', () {
-    test('toString', () {
-      final elems = makeElementWithChildren().children;
-      expect(elems.toString(), "[br, img, input]");
-      final elem = makeElement().children;
-      expect(elem.toString(), '[]');
-    });
-
-    test('scrollIntoView', () {
-      var child = new DivElement();
-      document.body.append(child);
-
-      child.scrollIntoView(ScrollAlignment.TOP);
-      child.scrollIntoView(ScrollAlignment.BOTTOM);
-      child.scrollIntoView(ScrollAlignment.CENTER);
-      child.scrollIntoView();
-    });
-  });
-
-  group('_ElementList', () {
-    List<Element> makeElList() => makeElementWithChildren().children;
-
-    test('where', () {
-      var filtered = makeElList().where((n) => n is ImageElement);
-      expect(filtered.length, 1);
-      expect(filtered.first, isImageElement);
-      expect(filtered, isElementIterable);
-    });
-
-    test('sublist', () {
-      var range = makeElList().sublist(1, 3);
-      expect(range, isElementList);
-      expect(range[0], isImageElement);
-      expect(range[1], isInputElement);
-    });
-  });
-
-  group('eventDelegation', () {
-    test('matches', () {
-      Element clickOne = new Element.a();
-      Element selectorOne = new Element.div()
-        ..classes.add('selector')
-        ..children.add(clickOne);
-
-      Element clickTwo = new Element.a();
-      Element selectorTwo = new Element.div()
-        ..classes.add('selector')
-        ..children.add(clickTwo);
-      document.body.append(selectorOne);
-      document.body.append(selectorTwo);
-
-      document.body.onClick
-          .matches('.selector')
-          .listen(expectAsync1((Event event) {
-        expect(event.currentTarget, document.body);
-        expect(event.target, clickOne);
-        expect(event.matchingTarget, selectorOne);
-      }));
-
-      selectorOne.onClick
-          .matches('.selector')
-          .listen(expectAsync1((Event event) {
-        expect(event.currentTarget, selectorOne);
-        expect(event.target, clickOne);
-        expect(event.matchingTarget, selectorOne);
-      }));
-      clickOne.click();
-
-      Element elem = new Element.div()..classes.addAll(['a', 'b']);
-      Element img = new Element.img()
-        ..classes.addAll(['b', 'a', 'd'])
-        ..id = 'cookie';
-      Element input = new InputElement()..classes.addAll(['c', 'd']);
-      var div = new Element.div()
-        ..classes.add('a')
-        ..id = 'wat';
-      document.body.append(elem);
-      document.body.append(img);
-      document.body.append(input);
-      document.body.append(div);
-
-      Element elem4 = new Element.div()..classes.addAll(['i', 'j']);
-      Element elem5 = new Element.div()
-        ..classes.addAll(['g', 'h'])
-        ..children.add(elem4);
-      Element elem6 = new Element.div()
-        ..classes.addAll(['e', 'f'])
-        ..children.add(elem5);
-      document.body.append(elem6);
-
-      var firedEvent = false;
-      var elems = querySelectorAll('.a');
-      querySelectorAll('.a').onClick.listen((event) {
-        firedEvent = true;
-      });
-      expect(firedEvent, false);
-      querySelector('.c').click();
-      expect(firedEvent, false);
-      querySelector('#wat').click();
-      expect(firedEvent, true);
-
-      var firedEvent4 = false;
-      querySelectorAll('.a').onClick.matches('.d').listen((event) {
-        firedEvent4 = true;
-      });
-      expect(firedEvent4, false);
-      querySelector('.c').click();
-      expect(firedEvent4, false);
-      querySelector('#wat').click();
-      expect(firedEvent4, false);
-      querySelector('#cookie').click();
-      expect(firedEvent4, true);
-
-      var firedEvent2 = false;
-      querySelectorAll('.a').onClick.listen((event) {
-        firedEvent2 = true;
-      });
-      Element elem2 = new Element.html('<div class="a"><br/>');
-      document.body.append(elem2);
-      elem2.click();
-      expect(firedEvent2, false);
-      elem2.classes.add('a');
-      elem2.click();
-      expect(firedEvent2, false);
-
-      var firedEvent3 = false;
-      querySelectorAll(':root').onClick.matches('.a').listen((event) {
-        firedEvent3 = true;
-      });
-      Element elem3 = new Element.html('<div class="d"><br/>');
-      document.body.append(elem3);
-      elem3.click();
-      expect(firedEvent3, false);
-      elem3.classes.add('a');
-      elem3.click();
-      expect(firedEvent3, true);
-
-      var firedEvent5 = false;
-      querySelectorAll(':root').onClick.matches('.e').listen((event) {
-        firedEvent5 = true;
-      });
-      expect(firedEvent5, false);
-      querySelector('.i').click();
-      expect(firedEvent5, true);
-    });
-
-    test('event ordering', () {
-      var a = new DivElement();
-      var b = new DivElement();
-      a.append(b);
-      var c = new DivElement();
-      b.append(c);
-
-      var eventOrder = [];
-
-      ElementStream aEvent = a.on['custom_event'];
-      aEvent.listen((_) {
-        eventOrder.add('a no-capture');
-      });
-
-      aEvent.capture((_) {
-        eventOrder.add('a capture');
-      });
-
-      ElementStream bEvent = b.on['custom_event'];
-      bEvent.listen((_) {
-        eventOrder.add('b no-capture');
-      });
-
-      bEvent.capture((_) {
-        eventOrder.add('b capture');
-      });
-
-      document.body.append(a);
-
-      var event = new Event('custom_event', canBubble: true);
-      c.dispatchEvent(event);
-      expect(eventOrder,
-          ['a capture', 'b capture', 'b no-capture', 'a no-capture']);
-    });
-  });
-
-  group('ElementList', () {
-    // Tests for methods on the DOM class 'NodeList'.
-    //
-    // There are two interesting things that are validated here from the
-    // viewpoint of the dart2js implementation of a 'native' class:
-    //
-    //   1. Some methods are implemented from by 'Object' or 'Interceptor';
-    //      some of these tests validate that a method can be called.
-    //   2. Some methods are implemented by mixins.
-
-    ElementList<Element> makeElementList() =>
-        (new Element.html("<div>Foo<br/><!--baz--><br/><br/></div>"))
-            .querySelectorAll('br');
-
-    test('hashCode', () {
-      var nodes = makeElementList();
-      var hash = nodes.hashCode;
-      final int N = 1000;
-      int matchCount = 0;
-      for (int i = 0; i < N; i++) {
-        if (makeElementList().hashCode == hash) matchCount++;
-      }
-      expect(matchCount, lessThan(N));
-    });
-
-    test('operator==', () {
-      var a = [makeElementList(), makeElementList(), null];
-      for (int i = 0; i < a.length; i++) {
-        for (int j = 0; j < a.length; j++) {
-          expect(i == j, a[i] == a[j]);
-        }
-      }
-    });
-
-    test('runtimeType', () {
-      var nodes1 = makeElementList();
-      var nodes2 = makeElementList();
-      var type1 = nodes1.runtimeType;
-      var type2 = nodes2.runtimeType;
-      expect(type1 == type2, true);
-      String name = '$type1';
-      if (name.length > 3) {
-        expect(name.contains('ElementList'), true);
-      }
-    });
-
-    test('first', () {
-      var nodes = makeElementList();
-      expect(nodes.first, isBRElement);
-    });
-
-    test('last', () {
-      var nodes = makeElementList();
-      expect(nodes.last, isBRElement);
-    });
-
-    test('where', () {
-      var filtered = makeElementList().where((n) => n is BRElement).toList();
-      expect(filtered.length, 3);
-      expect(filtered[0], isBRElement);
-    });
-
-    test('sublist', () {
-      var range = makeElementList().sublist(1, 3);
-      expect(range.length, 2);
-      expect(range[0], isBRElement);
-      expect(range[1], isBRElement);
-    });
-  });
-}
diff --git a/tests/lib_2/html/element_types_constructors1_test.dart b/tests/lib_2/html/element_types_constructors1_test.dart
deleted file mode 100644
index e8ccc9af8b4..00000000000
--- a/tests/lib_2/html/element_types_constructors1_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  check(String name, bool fn(), [bool supported = true]) {
-    test(name, () {
-      if (supported) {
-        expect(fn(), isTrue);
-      } else {
-        // Can either throw or return false.
-        expect(() => (fn() || (throw "false")), throws);
-      }
-    });
-  }
-
-  group('constructors', () {
-    check('a', () => new AnchorElement() is AnchorElement);
-    check('area', () => new AreaElement() is AreaElement);
-    check('audio', () => new AudioElement() is AudioElement);
-    check('body', () => new BodyElement() is BodyElement);
-    check('br', () => new BRElement() is BRElement);
-    check('base', () => new BaseElement() is BaseElement);
-    check('button', () => new ButtonElement() is ButtonElement);
-    check('canvas', () => new CanvasElement() is CanvasElement);
-    check('caption', () => new TableCaptionElement() is TableCaptionElement);
-    check('content', () => new ContentElement() is ContentElement,
-        ContentElement.supported);
-    check('details', () => new DetailsElement() is DetailsElement,
-        DetailsElement.supported);
-    check('datalist', () => new DataListElement() is DataListElement,
-        DataListElement.supported);
-    check('dl', () => new DListElement() is DListElement);
-    check('div', () => new DivElement() is DivElement);
-    check('embed', () => new EmbedElement() is EmbedElement,
-        EmbedElement.supported);
-  });
-}
diff --git a/tests/lib_2/html/element_types_constructors2_test.dart b/tests/lib_2/html/element_types_constructors2_test.dart
deleted file mode 100644
index c2c22c071a1..00000000000
--- a/tests/lib_2/html/element_types_constructors2_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  check(String name, bool fn(), [bool supported = true]) {
-    test(name, () {
-      if (supported) {
-        expect(fn(), supported);
-      } else {
-        // Can either throw or return false.
-        expect(() => (fn() || (throw "false")), throws);
-      }
-    });
-  }
-
-  group('constructors', () {
-    check('fieldset', () => new FieldSetElement() is FieldSetElement);
-    check('form', () => new FormElement() is FormElement);
-    check('head', () => new HeadElement() is HeadElement);
-    check('hr', () => new HRElement() is HRElement);
-    check('html', () => new HtmlHtmlElement() is HtmlHtmlElement);
-    check('h1', () => new HeadingElement.h1() is HeadingElement);
-    check('h2', () => new HeadingElement.h2() is HeadingElement);
-    check('h3', () => new HeadingElement.h3() is HeadingElement);
-    check('h4', () => new HeadingElement.h4() is HeadingElement);
-    check('h5', () => new HeadingElement.h5() is HeadingElement);
-    check('h6', () => new HeadingElement.h6() is HeadingElement);
-    check('iframe', () => new IFrameElement() is IFrameElement);
-    check('img', () => new ImageElement() is ImageElement);
-    check('input', () => new InputElement() is InputElement);
-  });
-}
diff --git a/tests/lib_2/html/element_types_constructors3_test.dart b/tests/lib_2/html/element_types_constructors3_test.dart
deleted file mode 100644
index f5f6765795e..00000000000
--- a/tests/lib_2/html/element_types_constructors3_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  check(String name, bool fn(), [bool supported = true]) {
-    test(name, () {
-      if (supported) {
-        expect(fn(), isTrue);
-      } else {
-        // Can either throw or return false.
-        expect(() => (fn() || (throw "false")), throws);
-      }
-    });
-  }
-
-  group('constructors', () {
-    check('li', () => new LIElement() is LIElement);
-    check('label', () => new LabelElement() is LabelElement);
-    check('legen', () => new LegendElement() is LegendElement);
-    check('link', () => new LinkElement() is LinkElement);
-    check('map', () => new MapElement() is MapElement);
-    check('menu', () => new MenuElement() is MenuElement);
-    check('meta', () => new MetaElement() is MetaElement);
-    check('meter', () => new MeterElement() is MeterElement,
-        MeterElement.supported);
-    check('del', () => new Element.tag('del') is ModElement);
-    check('ins', () => new Element.tag('ins') is ModElement);
-    check('object', () => new ObjectElement() is ObjectElement,
-        ObjectElement.supported);
-    check('ol', () => new OListElement() is OListElement);
-    check('optgroup', () => new OptGroupElement() is OptGroupElement);
-    check('option', () => new OptionElement() is OptionElement);
-    check('output', () => new OutputElement() is OutputElement,
-        OutputElement.supported);
-  });
-}
diff --git a/tests/lib_2/html/element_types_constructors4_test.dart b/tests/lib_2/html/element_types_constructors4_test.dart
deleted file mode 100644
index c445c3d435d..00000000000
--- a/tests/lib_2/html/element_types_constructors4_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  check(String name, bool fn(), [bool supported = true]) {
-    test(name, () {
-      if (supported) {
-        expect(fn(), isTrue);
-      } else {
-        // Can either throw or return false.
-        expect(() => (fn() || (throw "false")), throws);
-      }
-    });
-  }
-
-  group('constructors', () {
-    check('p', () => new ParagraphElement() is ParagraphElement);
-    check('param', () => new ParamElement() is ParamElement);
-    check('pre', () => new PreElement() is PreElement);
-    check('progress', () => new ProgressElement() is ProgressElement,
-        ProgressElement.supported);
-    check('q', () => new QuoteElement() is QuoteElement);
-    check('script', () => new ScriptElement() is ScriptElement);
-    check('select', () => new SelectElement() is SelectElement);
-    check('shadow', () => new ShadowElement() is ShadowElement,
-        ShadowElement.supported);
-    check('source', () => new SourceElement() is SourceElement);
-    check('span', () => new SpanElement() is SpanElement);
-    check('style', () => new StyleElement() is StyleElement);
-  });
-}
diff --git a/tests/lib_2/html/element_types_constructors5_test.dart b/tests/lib_2/html/element_types_constructors5_test.dart
deleted file mode 100644
index 08041d00ed3..00000000000
--- a/tests/lib_2/html/element_types_constructors5_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  check(String name, bool fn(), [bool supported = true]) {
-    test(name, () {
-      if (supported) {
-        expect(fn(), isTrue);
-      } else {
-        // Can either throw or return false.
-        expect(() => (fn() || (throw "false")), throws);
-      }
-    });
-  }
-
-  group('constructors', () {
-    check('table', () => new TableElement() is TableElement);
-    check('template', () => new TemplateElement() is TemplateElement,
-        TemplateElement.supported);
-    check('textarea', () => new TextAreaElement() is TextAreaElement);
-    check('title', () => new TitleElement() is TitleElement);
-    check('td', () => new TableCellElement() is TableCellElement);
-    check('col', () => new TableColElement() is TableColElement);
-    check('colgroup', () => new Element.tag('colgroup') is TableColElement);
-    check('tr', () => new TableRowElement() is TableRowElement);
-    check('tbody', () => new Element.tag('tbody') is TableSectionElement);
-    check('tfoot', () => new Element.tag('tfoot') is TableSectionElement);
-    check('thead', () => new Element.tag('thead') is TableSectionElement);
-    check('track', () => new TrackElement() is TrackElement,
-        TrackElement.supported);
-  });
-}
diff --git a/tests/lib_2/html/element_types_constructors6_test.dart b/tests/lib_2/html/element_types_constructors6_test.dart
deleted file mode 100644
index 147782b362d..00000000000
--- a/tests/lib_2/html/element_types_constructors6_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  check(String name, bool fn(), [bool supported = true]) {
-    test(name, () {
-      if (supported) {
-        expect(fn(), isTrue);
-      } else {
-        // Can either throw or return false.
-        expect(() => (fn() || (throw "false")), throws);
-      }
-    });
-  }
-
-  group('ul', () {
-    check('ul', () => new UListElement() is UListElement);
-
-    test('accepts li', () {
-      var ul = new UListElement();
-      var li = new LIElement();
-      ul.append(li);
-    });
-  });
-  group('constructors', () {
-    check('video', () => new VideoElement() is VideoElement);
-    check('unknown', () => new Element.tag('someunknown') is UnknownElement);
-  });
-}
diff --git a/tests/lib_2/html/element_types_content_test.dart b/tests/lib_2/html/element_types_content_test.dart
deleted file mode 100644
index 2b84907c119..00000000000
--- a/tests/lib_2/html/element_types_content_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('content_supported', () {
-    expect(ContentElement.supported, true);
-  });
-}
diff --git a/tests/lib_2/html/element_types_datalist_test.dart b/tests/lib_2/html/element_types_datalist_test.dart
deleted file mode 100644
index e84af69a4ae..00000000000
--- a/tests/lib_2/html/element_types_datalist_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('datalist_supported', () {
-    expect(DataListElement.supported, true);
-  });
-}
diff --git a/tests/lib_2/html/element_types_details_test.dart b/tests/lib_2/html/element_types_details_test.dart
deleted file mode 100644
index 7fcb106453f..00000000000
--- a/tests/lib_2/html/element_types_details_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('details_supported', () {
-    expect(DetailsElement.supported, true);
-  });
-}
diff --git a/tests/lib_2/html/element_types_embed_test.dart b/tests/lib_2/html/element_types_embed_test.dart
deleted file mode 100644
index 6820e29f3aa..00000000000
--- a/tests/lib_2/html/element_types_embed_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('embed_supported', () {
-    expect(EmbedElement.supported, true);
-  });
-}
diff --git a/tests/lib_2/html/element_types_meter_test.dart b/tests/lib_2/html/element_types_meter_test.dart
deleted file mode 100644
index 2eb097c5c8f..00000000000
--- a/tests/lib_2/html/element_types_meter_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('meter_supported', () {
-    expect(MeterElement.supported, true);
-  });
-}
diff --git a/tests/lib_2/html/element_types_object_test.dart b/tests/lib_2/html/element_types_object_test.dart
deleted file mode 100644
index e7a9702a7e1..00000000000
--- a/tests/lib_2/html/element_types_object_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('object_supported', () {
-    expect(ObjectElement.supported, true);
-  });
-}
diff --git a/tests/lib_2/html/element_types_output_test.dart b/tests/lib_2/html/element_types_output_test.dart
deleted file mode 100644
index 0caf8dad194..00000000000
--- a/tests/lib_2/html/element_types_output_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('output_supported', () {
-    expect(OutputElement.supported, true);
-  });
-}
diff --git a/tests/lib_2/html/element_types_progress_test.dart b/tests/lib_2/html/element_types_progress_test.dart
deleted file mode 100644
index 3d03210d7b6..00000000000
--- a/tests/lib_2/html/element_types_progress_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('progress_supported', () {
-    expect(ProgressElement.supported, true);
-  });
-}
diff --git a/tests/lib_2/html/element_types_shadow_test.dart b/tests/lib_2/html/element_types_shadow_test.dart
deleted file mode 100644
index f0469a909f1..00000000000
--- a/tests/lib_2/html/element_types_shadow_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('shadow_supported', () {
-    expect(ShadowElement.supported, true);
-  });
-}
diff --git a/tests/lib_2/html/element_types_template_test.dart b/tests/lib_2/html/element_types_template_test.dart
deleted file mode 100644
index b82dd9d5c69..00000000000
--- a/tests/lib_2/html/element_types_template_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('template_supported', () {
-    expect(TemplateElement.supported, true);
-  });
-}
diff --git a/tests/lib_2/html/element_types_track_test.dart b/tests/lib_2/html/element_types_track_test.dart
deleted file mode 100644
index 9620c9973e8..00000000000
--- a/tests/lib_2/html/element_types_track_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('track_supported', () {
-    expect(TrackElement.supported, true);
-  });
-}
diff --git a/tests/lib_2/html/event_callback_test.dart b/tests/lib_2/html/event_callback_test.dart
deleted file mode 100644
index d5a1dc7be31..00000000000
--- a/tests/lib_2/html/event_callback_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 33627.
-
-import 'dart:html';
-import 'package:expect/expect.dart';
-
-void main() {
-  try {
-    print('InputElement');
-    var i = new InputElement();
-    print('> onKeyPress');
-    i.onKeyPress.listen(onEvent);
-    print('> onClick');
-    i.onClick.listen(onEvent);
-    print('TextAreaElement');
-    var e = new TextAreaElement();
-    print('> onKeyPress');
-    e.onKeyPress.listen(onEvent);
-    print('> onClick');
-    e.onClick.listen(onEvent);
-    print('Done!');
-  } catch (e, s) {
-    print('$e\n$s');
-    Expect.fail("Unexpected exception: $e");
-  }
-}
-
-void onEvent(Event e) {
-  print(e);
-}
diff --git a/tests/lib_2/html/event_customevent_test.dart b/tests/lib_2/html/event_customevent_test.dart
deleted file mode 100644
index 7fa81a3aa9f..00000000000
--- a/tests/lib_2/html/event_customevent_test.dart
+++ /dev/null
@@ -1,85 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library EventCustomEventTest;
-
-import 'package:async_helper/async_minitest.dart';
-import 'dart:html';
-import 'dart:js' as js;
-
-class DartPayloadData {
-  final dartValue;
-
-  DartPayloadData(this.dartValue);
-}
-
-main() {
-  test('custom events', () {
-    var provider = new EventStreamProvider<CustomEvent>('foo');
-    var el = new DivElement();
-
-    var fired = false;
-    provider.forTarget(el).listen((ev) {
-      fired = true;
-      expect(ev.detail, {'type': 'detail'});
-    });
-
-    var ev = new CustomEvent('foo',
-        canBubble: false, cancelable: false, detail: {'type': 'detail'});
-    el.dispatchEvent(ev);
-    expect(fired, isTrue);
-  });
-
-  test('custom events from JS', () {
-    var scriptContents = '''
-      var event = document.createEvent("CustomEvent");
-      event.initCustomEvent("js_custom_event", true, true, {type: "detail"});
-      window.dispatchEvent(event);
-    ''';
-
-    var fired = false;
-    window.on['js_custom_event'].listen((ev) {
-      fired = true;
-      expect((ev as CustomEvent).detail, {'type': 'detail'});
-    });
-
-    var script = new ScriptElement();
-    script.text = scriptContents;
-    document.body.append(script);
-
-    expect(fired, isTrue);
-  });
-
-  test('custom events to JS', () {
-    expect(js.context['gotDartEvent'], isNull);
-    var scriptContents = '''
-      window.addEventListener('dart_custom_event', function(e) {
-        if (e.detail == 'dart_message') {
-          e.preventDefault();
-          window.gotDartEvent = true;
-        }
-        window.console.log('here' + e.detail);
-      }, false);''';
-
-    document.body.append(new ScriptElement()..text = scriptContents);
-
-    var event = new CustomEvent('dart_custom_event', detail: 'dart_message');
-    window.dispatchEvent(event);
-    expect(js.context['gotDartEvent'], isTrue);
-  });
-
-  test('custom data to Dart', () {
-    var data = new DartPayloadData(666);
-    var event = new CustomEvent('dart_custom_data_event', detail: data);
-
-    var future = window.on['dart_custom_data_event'].first.then((_) {
-      expect(event.detail.dartValue, 666);
-    });
-
-    document.body.dispatchEvent(event);
-    return future;
-  });
-}
diff --git a/tests/lib_2/html/event_test.dart b/tests/lib_2/html/event_test.dart
deleted file mode 100644
index c51b76c3294..00000000000
--- a/tests/lib_2/html/event_test.dart
+++ /dev/null
@@ -1,222 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-eventTest(String name, Event eventFn(), void validate(Event),
-    [String type = 'foo']) {
-  test(name, () {
-    final el = new Element.tag('div');
-    var fired = false;
-    el.on[type].listen((ev) {
-      fired = true;
-      validate(ev);
-    });
-    el.dispatchEvent(eventFn());
-    expect(fired, isTrue, reason: 'Expected event to be dispatched.');
-  });
-}
-
-main() {
-  // Issue 1005.
-  // eventTest('AnimationEvent', () => new AnimationEvent('foo', 'color', 0.5),
-  //     (ev) {
-  //   expect(ev.animationName, 'color');
-  //   expect(ev.elapsedTime, 0.5);
-  // });
-
-  // Issue 1005.
-  // eventTest('BeforeLoadEvent',
-  //    () => new BeforeLoadEvent('foo', 'http://example.url'),
-  //    (ev) { expect(ev.url, 'http://example.url'); });
-
-  // Issue 1005.
-  // eventTest('CloseEvent',
-  //     () => new CloseEvent('foo', 5, 'reason', wasClean: true),
-  //     (ev) {
-  //   expect(ev.code, 5);
-  //   expect(ev.reason, 'reason');
-  //   expect(ev.wasClean, isTrue);
-  // });
-
-  eventTest(
-      'CompositionEvent',
-      () =>
-          new CompositionEvent('compositionstart', view: window, data: 'data'),
-      (ev) {
-    expect(ev.data, 'data');
-  }, 'compositionstart');
-
-  // initCustomEvent is not yet implemented
-  // eventTest('CustomEvent',
-  //     () => new CustomEvent('foo', false, false, 'detail'),
-  //     (ev) { expect(ev.detail, 'detail'); });
-
-  // DeviceMotionEvent has no properties to itself, so just test that it doesn't
-  // error out on creation and can be dispatched.
-  // Suppress. DeviceMotion has no constructor, and I don't think it can be
-  // created on a non-mobile device. Issue 23321
-  // eventTest('DeviceMotionEvent', () => new DeviceMotionEvent('foo'), (ev) {});
-
-  // initDeviceOrientationEvent is not yet implemented
-  // eventTest('DeviceOrientationEvent',
-  //     () => new DeviceOrientationEvent('foo', 0.1, 0.2, 0.3),
-  //     (ev) {
-  //   expect(ev.alpha, 0.1);
-  //   expect(ev.beta, 0.2);
-  //   expect(ev.gamma, 0.3);
-  // });
-
-  // Issue 1005.
-  // eventTest('ErrorEvent',
-  //     () => new ErrorEvent('foo', 'message', 'filename', 10),
-  //     (ev) {
-  //   expect('message', ev.message);
-  //   expect('filename', ev.filename);
-  //   expect(ev.lineno, 10);
-  // });
-
-  eventTest(
-      'Event', () => new Event('foo', canBubble: false, cancelable: false),
-      (ev) {
-    expect(ev.type, equals('foo'));
-    expect(ev.bubbles, isFalse);
-    expect(ev.cancelable, isFalse);
-  });
-
-  eventTest(
-      'HashChangeEvent',
-      () => new HashChangeEvent('foo',
-          oldUrl: 'http://old.url', newUrl: 'http://new.url'), (ev) {
-    expect(ev.oldUrl, equals('http://old.url'));
-    expect(ev.newUrl, equals('http://new.url'));
-  });
-
-  // KeyboardEvent has its own test file, and has cross-browser issues.
-
-  eventTest(
-      'MouseEvent',
-      () => new MouseEvent('foo',
-          view: window,
-          detail: 1,
-          screenX: 2,
-          screenY: 3,
-          clientX: 4,
-          clientY: 5,
-          button: 6,
-          ctrlKey: true,
-          altKey: true,
-          shiftKey: true,
-          metaKey: true,
-          relatedTarget: document.body), (ev) {
-    expect(ev.detail, 1);
-    expect(ev.screen.x, 2);
-    expect(ev.screen.y, 3);
-    expect(ev.client.x, 4);
-    expect(ev.client.y, 5);
-    expect(ev.offset.x, 4); // Same as clientX.
-    expect(ev.offset.y, 5); // Same as clientY.
-    expect(ev.button, 6);
-    expect(ev.ctrlKey, isTrue);
-    expect(ev.altKey, isTrue);
-    expect(ev.shiftKey, isTrue);
-    expect(ev.metaKey, isTrue);
-    // TODO(alanknight): The target does not seem to get correctly set.
-    // Issue 23438
-    //  expect(ev.relatedTarget, document.body);
-  });
-
-  // Issue 1005.
-  // eventTest('OverflowEvent',
-  //     () => new OverflowEvent(OverflowEvent.BOTH, true, true),
-  //     (ev) {
-  //   expect(ev.orient, OverflowEvent.BOTH);
-  //   expect(ev.horizontalOverflow, isTrue);
-  //   expect(ev.verticalOverflow, isTrue);
-  // }, type: 'overflowchanged');
-
-  // Issue 1005.
-  // eventTest('PageTransitionEvent',
-  //     () => new PageTransitionEvent('foo', persisted: true),
-  //     (ev) { expect(ev.persisted, isTrue); });
-
-  // initPopStateEvent is not yet implemented
-  // eventTest('PopStateEvent', () => new PopStateEvent('foo', 'state'),
-  //     (ev) { expect(ev.state, 'state'); }
-
-  // Issue 1005.
-  // eventTest('ProgressEvent',
-  //     // canBubble and cancelable are currently required to avoid dartc
-  //     // complaining about the types of the named arguments.
-  //     () => new ProgressEvent('foo', 5, canBubble: true, cancelable: true,
-  //         lengthComputable: true, total: 10),
-  //     (ev) {
-  //   expect(ev.loaded, 5);
-  //   expect(ev.lengthComputable, isTrue);
-  //   expect(ev.total, 10);
-  // });
-
-  eventTest(
-      'StorageEvent',
-      () => new StorageEvent('foo',
-          key: 'key',
-          url: 'http://example.url',
-          storageArea: window.localStorage,
-          canBubble: true,
-          cancelable: true,
-          oldValue: 'old',
-          newValue: 'new'), (ev) {
-    expect(ev.key, 'key');
-    expect(ev.url, 'http://example.url');
-    // Equality isn't preserved for storageArea
-    expect(ev.storageArea, isNotNull);
-    expect(ev.oldValue, 'old');
-    expect(ev.newValue, 'new');
-  });
-
-  // Issue 1005.
-  // eventTest('TransitionEvent', () => new TransitionEvent('foo', 'color', 0.5),
-  //     (ev) {
-  //   expect(ev.propertyName, 'color');
-  //   expect(ev.elapsedTime, 0.5);
-  // });
-
-  eventTest('UIEvent', () => new UIEvent('foo', view: window, detail: 12),
-      (ev) {
-    expect(window, ev.view);
-    expect(12, ev.detail);
-  });
-
-  eventTest(
-      'WheelEvent',
-      // TODO(alanknight): Can't pass window on Dartium. Add view: window
-      // once going through JS.
-      () => new WheelEvent("mousewheel",
-          deltaX: 1,
-          deltaY: 0,
-          detail: 4,
-          screenX: 3,
-          screenY: 4,
-          clientX: 5,
-          clientY: 6,
-          ctrlKey: true,
-          altKey: true,
-          shiftKey: true,
-          metaKey: true), (ev) {
-    expect(ev.deltaX, 1);
-    expect(ev.deltaY, 0);
-    expect(ev.screen.x, 3);
-    expect(ev.screen.y, 4);
-    expect(ev.client.x, 5);
-    expect(ev.client.y, 6);
-    expect(ev.ctrlKey, isTrue);
-    expect(ev.altKey, isTrue);
-    expect(ev.shiftKey, isTrue);
-    expect(ev.metaKey, isTrue);
-  }, 'mousewheel');
-}
diff --git a/tests/lib_2/html/events_test.dart b/tests/lib_2/html/events_test.dart
deleted file mode 100644
index 99a316adc2d..00000000000
--- a/tests/lib_2/html/events_test.dart
+++ /dev/null
@@ -1,119 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library tests.html.events_test;
-
-import 'dart:async';
-import 'dart:html';
-import 'package:async_helper/async_minitest.dart';
-import 'package:expect/expect.dart';
-
-main() {
-  test('TimeStamp', () {
-    var event = new Event('test');
-
-    var timeStamp = event.timeStamp;
-    expect(timeStamp, greaterThan(0));
-  });
-
-  test('Event canBubble and cancelable', () {
-    // Try every combination of canBubble and cancelable
-    for (var i = 0; i < 4; i++) {
-      var bubble = (i & 1) != 0;
-      var cancel = (i & 2) != 0;
-      var e = new Event('input', canBubble: bubble, cancelable: cancel);
-      expect(e.bubbles, bubble, reason: 'canBubble was set to $bubble');
-      expect(e.cancelable, cancel, reason: 'cancelable was set to $cancel');
-    }
-  });
-
-  // The next test is not asynchronous because [on['test'].dispatch(event)] fires the event
-  // and event listener synchronously.
-  test('EventTarget', () {
-    var element = new Element.tag('test');
-    element.id = 'eventtarget';
-    document.body.append(element);
-
-    var invocationCounter = 0;
-    void handler(Event e) {
-      expect(e.type, equals('test'));
-      var target = e.target;
-      expect(element, equals(target));
-      invocationCounter++;
-    }
-
-    var event = new Event('test');
-
-    invocationCounter = 0;
-    element.dispatchEvent(event);
-    expect(invocationCounter, 0);
-
-    var provider = new EventStreamProvider<Event>('test');
-
-    var sub = provider.forTarget(element).listen(handler);
-    invocationCounter = 0;
-    element.dispatchEvent(event);
-    expect(invocationCounter, 1);
-
-    sub.cancel();
-    invocationCounter = 0;
-    element.dispatchEvent(event);
-    expect(invocationCounter, 0);
-
-    provider.forTarget(element).listen(handler);
-    invocationCounter = 0;
-    element.dispatchEvent(event);
-    expect(invocationCounter, 1);
-
-    provider.forTarget(element).listen(handler);
-    invocationCounter = 0;
-    element.dispatchEvent(event);
-
-    // NOTE: when run in a custom zone, the handler is wrapped
-    // The logic for html events which ensures identical handlers are added only
-    // once is therefor muted by the wrapped handlers.
-    // Hence, we get different behavior depending on the current zone.
-    if (Zone.current == Zone.root) {
-      expect(invocationCounter, 1);
-    } else {
-      expect(invocationCounter, 2);
-    }
-  });
-
-  test('InitMouseEvent', () {
-    var div = new Element.tag('div');
-    var event = new MouseEvent('zebra', relatedTarget: div);
-  });
-
-  test('DOM event callbacks are associated with the correct zone', () {
-    var callbacks = [];
-
-    var element = new Element.tag('test');
-    element.id = 'eventtarget';
-    document.body.append(element);
-
-    // runZoned executes the function synchronously, but we don't want to
-    // rely on this. We therefore wrap it into an expectAsync.
-    runZoned(expectAsync0(() {
-      var zone = Zone.current;
-      Expect.notEquals(zone, Zone.root);
-
-      StreamSubscription<Event> sub;
-
-      void handler(Event e) {
-        expect(Zone.current, equals(zone));
-
-        scheduleMicrotask(expectAsync0(() {
-          expect(Zone.current, equals(zone));
-          sub.cancel();
-        }));
-      }
-
-      sub = element.on['test'].listen(expectAsync1(handler));
-    }));
-    element.dispatchEvent(new Event('test'));
-  });
-}
diff --git a/tests/lib_2/html/exceptions_test.dart b/tests/lib_2/html/exceptions_test.dart
deleted file mode 100644
index cc4abad8369..00000000000
--- a/tests/lib_2/html/exceptions_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('EventException', () {
-    final event = new Event('Event');
-    // Intentionally do not initialize it!
-    try {
-      document.dispatchEvent(event);
-    } on DomException catch (e) {
-      expect(e.name, DomException.INVALID_STATE);
-    }
-  });
-}
diff --git a/tests/lib_2/html/fileapi_directory_reader_test.dart b/tests/lib_2/html/fileapi_directory_reader_test.dart
deleted file mode 100644
index ee2a4268e7c..00000000000
--- a/tests/lib_2/html/fileapi_directory_reader_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-library fileapi;
-
-import 'dart:async';
-import 'dart:html';
-
-import 'package:async_helper/async_minitest.dart';
-
-class FileAndDir {
-  FileEntry file;
-  DirectoryEntry dir;
-  FileAndDir(this.file, this.dir);
-}
-
-main() async {
-  // Do the boilerplate to get several files and directories created to then
-  // test the functions that use those items.
-  Future doDirSetup(String testName) async {
-    final fs = await window.requestFileSystem(100);
-    // Prepend this file name to prevent collisions among tests runnning on the
-    // same browser.
-    const prefix = 'fileapi_directory_reader_';
-    var file = await fs.root.createFile('${prefix}file_$testName') as FileEntry;
-    var dir = await fs.root.createDirectory('${prefix}dir_$testName')
-        as DirectoryEntry;
-    return new Future.value(new FileAndDir(file, dir));
-  }
-
-  if (FileSystem.supported) {
-    test('readEntries', () async {
-      var fileAndDir = await doDirSetup('readEntries');
-      var reader = await fileAndDir.dir.createReader();
-      var entries = await reader.readEntries();
-      expect(entries is List, true);
-    });
-  }
-}
diff --git a/tests/lib_2/html/fileapi_directory_test.dart b/tests/lib_2/html/fileapi_directory_test.dart
deleted file mode 100644
index fa8c4ba8991..00000000000
--- a/tests/lib_2/html/fileapi_directory_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:async_helper/async_minitest.dart';
-
-main() {
-  if (!FileSystem.supported) return;
-  // Prepend this file name to prevent collisions among tests runnning on the
-  // same browser.
-  const prefix = 'fileapi_directory_';
-
-  test('directoryDoesntExist', () async {
-    final fs = await window.requestFileSystem(100);
-    try {
-      await fs.root.getDirectory('${prefix}directory2');
-    } on DomException catch (error) {
-      expect(DomException.NOT_FOUND, error.name);
-    }
-  });
-
-  test('directoryCreate', () async {
-    final fs = await window.requestFileSystem(100);
-    var entry = await fs.root.createDirectory('${prefix}directory3');
-    expect(entry.name, equals('${prefix}directory3'));
-  });
-}
diff --git a/tests/lib_2/html/fileapi_entry_test.dart b/tests/lib_2/html/fileapi_entry_test.dart
deleted file mode 100644
index 4d2ec2f93ba..00000000000
--- a/tests/lib_2/html/fileapi_entry_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-library fileapi;
-
-import 'dart:async';
-import 'dart:html';
-
-import 'package:async_helper/async_minitest.dart';
-
-class FileAndDir {
-  FileEntry file;
-  DirectoryEntry dir;
-  FileAndDir(this.file, this.dir);
-}
-
-main() {
-  if (!FileSystem.supported) return;
-  // Prepend this file name to prevent collisions among tests runnning on the
-  // same browser.
-  const prefix = 'fileapi_entry_';
-
-  // Do the boilerplate to get several files and directories created to then
-  // test the functions that use those items.
-  Future doDirSetup(FileSystem fs, String testName) async {
-    var file =
-        await fs.root.createFile('${prefix}file_$testName') as FileEntry;
-    var dir = await fs.root.createDirectory('${prefix}dir_$testName')
-        as DirectoryEntry;
-    return new Future.value(new FileAndDir(file, dir));
-  }
-
-  test('copy_move', () async {
-    final fs = await window.requestFileSystem(100);
-    var fileAndDir = await doDirSetup(fs, 'copyTo');
-    var entry =
-        await fileAndDir.file.copyTo(fileAndDir.dir, name: 'copiedFile');
-    expect(entry.isFile, true, reason: "Expected File");
-    expect(entry.name, 'copiedFile');
-
-    // getParent
-    fileAndDir = await doDirSetup(fs, 'getParent');
-    entry = await fileAndDir.file.getParent();
-    expect(entry.name, '');
-    expect(entry.isDirectory, true, reason: "Expected Directory");
-
-    // moveTo
-    fileAndDir = await doDirSetup(fs, 'moveTo');
-    entry = await fileAndDir.file.moveTo(fileAndDir.dir, name: 'movedFile');
-    expect(entry.name, 'movedFile');
-    expect(entry.fullPath, '/${prefix}dir_moveTo/movedFile');
-
-    try {
-      entry = await fs.root.getFile('${prefix}file4');
-      fail("File ${prefix}file4 should not exist.");
-    } on DomException catch (error) {
-      expect(DomException.NOT_FOUND, error.name);
-    }
-
-    // remove
-    fileAndDir = await doDirSetup(fs, 'remove');
-    expect('${prefix}file_remove', fileAndDir.file.name);
-    await fileAndDir.file.remove();
-    try {
-      await fileAndDir.dir.getFile(fileAndDir.file.name);
-      fail("file not removed");
-    } on DomException catch (error) {
-      expect(DomException.NOT_FOUND, error.name);
-    }
-  });
-}
diff --git a/tests/lib_2/html/fileapi_file_entry_test.dart b/tests/lib_2/html/fileapi_file_entry_test.dart
deleted file mode 100644
index 5abb7552b21..00000000000
--- a/tests/lib_2/html/fileapi_file_entry_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-
-// @dart = 2.9
-library fileapi;
-
-import 'dart:async';
-import 'dart:html';
-
-import 'package:async_helper/async_minitest.dart';
-
-class FileAndDir {
-  FileEntry file;
-  DirectoryEntry dir;
-  FileAndDir(this.file, this.dir);
-}
-
-main() {
-  if (!FileSystem.supported) return;
-  // Prepend this file name to prevent collisions among tests runnning on the
-  // same browser.
-  const prefix = 'fileapi_file_entry_';
-
-  // Do the boilerplate to get several files and directories created to then
-  // test the functions that use those items.
-  Future doDirSetup(String testName) async {
-    final fs = await window.requestFileSystem(100);
-    var file =
-        await fs.root.createFile('${prefix}file_$testName') as FileEntry;
-    var dir = await fs.root.createDirectory('${prefix}dir_$testName')
-        as DirectoryEntry;
-    return new Future.value(new FileAndDir(file, dir));
-  }
-
-  test('createWriter', () async {
-    var fileAndDir = await doDirSetup('createWriter');
-    var writer = await fileAndDir.file.createWriter();
-    expect(writer.position, 0);
-    expect(writer.readyState, FileWriter.INIT);
-    expect(writer.length, 0);
-  });
-
-  test('file', () async {
-    var fileAndDir = await doDirSetup('file');
-    var fileObj = await fileAndDir.file.file();
-    expect(fileObj.name, fileAndDir.file.name);
-    expect(fileObj.relativePath, '');
-    expect(
-        new DateTime.now().difference(fileObj.lastModifiedDate).inMinutes < 30,
-        isTrue);
-  });
-}
diff --git a/tests/lib_2/html/fileapi_file_test.dart b/tests/lib_2/html/fileapi_file_test.dart
deleted file mode 100644
index 7f79a4a61b7..00000000000
--- a/tests/lib_2/html/fileapi_file_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-library fileapi;
-
-import 'dart:html';
-
-import 'package:async_helper/async_minitest.dart';
-
-main() {
-  if (!FileSystem.supported) return;
-  // Prepend this file name to prevent collisions among tests runnning on the
-  // same browser.
-  const prefix = 'fileapi_file_';
-
-  test('fileDoesntExist', () async {
-    final fs = await window.requestFileSystem(100);
-    try {
-      await fs.root.getFile('${prefix}file2');
-      fail("file found");
-    } on DomException catch (error) {
-      expect(DomException.NOT_FOUND, error.name);
-    }
-  });
-
-  test('fileCreate', () async {
-    final fs = await window.requestFileSystem(100);
-    var fileObj = await fs.root.createFile('${prefix}file4');
-    expect(fileObj.name, equals('${prefix}file4'));
-    expect(fileObj.isFile, isTrue);
-
-    var metadata = await fileObj.getMetadata();
-    var changeTime = metadata.modificationTime;
-
-    // Increased Windows buildbots can sometimes be particularly slow.
-    expect(new DateTime.now().difference(changeTime).inMinutes < 4, isTrue);
-    expect(metadata.size, equals(0));
-  });
-}
diff --git a/tests/lib_2/html/fileapi_supported_test.dart b/tests/lib_2/html/fileapi_supported_test.dart
deleted file mode 100644
index 88a3bf31479..00000000000
--- a/tests/lib_2/html/fileapi_supported_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-
-// @dart = 2.9
-library fileapi;
-
-import 'dart:async';
-import 'dart:html';
-
-import 'package:async_helper/async_minitest.dart';
-
-Future<FileSystem> _fileSystem;
-
-Future<FileSystem> get fileSystem async {
-  if (_fileSystem != null) return _fileSystem;
-
-  _fileSystem = window.requestFileSystem(100);
-
-  var fs = await _fileSystem;
-  expect(fs != null, true);
-  expect(fs.root != null, true);
-  expect(fs.runtimeType, FileSystem);
-  expect(fs.root.runtimeType, DirectoryEntry);
-
-  return _fileSystem;
-}
-
-main() {
-  test('supported', () {
-    expect(FileSystem.supported, true);
-  });
-
-  test('requestFileSystem', () async {
-    var expectation = FileSystem.supported ? returnsNormally : throws;
-    expect(() async {
-      var fs = await fileSystem;
-      expect(fs.root != null, true);
-    }, expectation);
-  });
-}
diff --git a/tests/lib_2/html/fileapi_supported_throws_test.dart b/tests/lib_2/html/fileapi_supported_throws_test.dart
deleted file mode 100644
index 56e686f7380..00000000000
--- a/tests/lib_2/html/fileapi_supported_throws_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-
-// @dart = 2.9
-library fileapi;
-
-import 'dart:html';
-
-import 'package:async_helper/async_minitest.dart';
-
-main() {
-  test('requestFileSystem', () async {
-    var expectation = FileSystem.supported ? returnsNormally : throws;
-    expect(() async {
-      await window.requestFileSystem(100);
-    }, expectation);
-  });
-}
diff --git a/tests/lib_2/html/filereader_test.dart b/tests/lib_2/html/filereader_test.dart
deleted file mode 100644
index a4652a75641..00000000000
--- a/tests/lib_2/html/filereader_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library filereader_test;
-
-import 'package:async_helper/async_minitest.dart';
-import 'dart:html';
-import 'dart:typed_data';
-
-main() {
-  test('readAsText', () {
-    var reader = new FileReader();
-    reader.onLoad.listen(expectAsync((event) {
-      var result = reader.result;
-      expect(result, equals('hello world'));
-    }));
-    reader.readAsText(new Blob(['hello ', 'world']));
-  });
-
-  test('readAsArrayBuffer', () {
-    var reader = new FileReader();
-    reader.onLoad.listen(expectAsync((event) {
-      var result = reader.result;
-      expect(result is Uint8List, isTrue);
-      expect(result, equals([65, 66, 67]));
-    }));
-    reader.readAsArrayBuffer(new Blob(['ABC']));
-  });
-
-  test('readDataUrl', () {
-    var reader = new FileReader();
-    reader.onLoad.listen(expectAsync((event) {
-      String result = reader.result;
-      expect(result is String, isTrue);
-      expect(result.startsWith('data:'), isTrue);
-    }));
-    reader.readAsDataUrl(new Blob(['ABC']));
-  });
-}
diff --git a/tests/lib_2/html/filteredelementlist_test.dart b/tests/lib_2/html/filteredelementlist_test.dart
deleted file mode 100644
index da99d402978..00000000000
--- a/tests/lib_2/html/filteredelementlist_test.dart
+++ /dev/null
@@ -1,106 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-import 'dart:html_common';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  var t1 = new Text('T1'),
-      t2 = new Text('T2'),
-      t3 = new Text('T3'),
-      t4 = new Text('T4');
-
-  var d1 = new DivElement(), d2 = new DivElement(), d3 = new DivElement();
-
-  createTestDiv() {
-    var testDiv = new DivElement();
-    testDiv
-      ..append(t1)
-      ..append(d1)
-      ..append(t2)
-      ..append(d2)
-      ..append(t3)
-      ..append(d3)
-      ..append(t4);
-    return testDiv;
-  }
-
-  test('FilteredElementList.insert test', () {
-    var i = new DivElement();
-
-    // Insert before first element
-    var nodeList = createTestDiv();
-    var elementList = new FilteredElementList(nodeList);
-    elementList.insert(0, i);
-    expect(nodeList.childNodes[0], t1);
-    expect(nodeList.childNodes[1], i);
-    expect(nodeList.childNodes[2], d1);
-
-    // Insert in middle
-    nodeList = createTestDiv();
-    elementList = new FilteredElementList(nodeList);
-    elementList.insert(1, i);
-    expect(nodeList.childNodes[2], t2);
-    expect(nodeList.childNodes[3], i);
-    expect(nodeList.childNodes[4], d2);
-
-    // Insert before last element
-    nodeList = createTestDiv();
-    elementList = new FilteredElementList(nodeList);
-    elementList.insert(2, i);
-    expect(nodeList.childNodes[4], t3);
-    expect(nodeList.childNodes[5], i);
-    expect(nodeList.childNodes[6], d3);
-  });
-
-  test('FilteredElementList.insertAll test', () {
-    var i1 = new DivElement(), i2 = new DivElement();
-
-    var it = [i1, i2];
-
-    // Insert before first element
-    var nodeList = createTestDiv();
-    var elementList = new FilteredElementList(nodeList);
-    elementList.insertAll(0, it);
-    expect(nodeList.childNodes[0], t1);
-    expect(nodeList.childNodes[1], i1);
-    expect(nodeList.childNodes[2], i2);
-    expect(nodeList.childNodes[3], d1);
-
-    // Insert in middle
-    nodeList = createTestDiv();
-    elementList = new FilteredElementList(nodeList);
-    elementList.insertAll(1, it);
-    expect(nodeList.childNodes[2], t2);
-    expect(nodeList.childNodes[3], i1);
-    expect(nodeList.childNodes[4], i2);
-    expect(nodeList.childNodes[5], d2);
-
-    // Insert before last element
-    nodeList = createTestDiv();
-    elementList = new FilteredElementList(nodeList);
-    elementList.insertAll(2, it);
-    expect(nodeList.childNodes[4], t3);
-    expect(nodeList.childNodes[5], i1);
-    expect(nodeList.childNodes[6], i2);
-    expect(nodeList.childNodes[7], d3);
-  });
-
-  test('FilteredElementList.insertAndRemove', () {
-    var emptyDiv = new DivElement();
-    var elementList = new FilteredElementList(emptyDiv);
-    expect(() => elementList[0], throwsRangeError);
-    expect(() => elementList.insert(2, new BRElement()), throwsRangeError);
-    var br = new BRElement();
-    elementList.insert(0, br);
-    expect(elementList.removeLast(), br);
-    elementList.add(br);
-    expect(elementList.remove(br), isTrue);
-    var br2 = new BRElement();
-    elementList.add(br);
-    expect(elementList.remove(br2), isFalse);
-    expect(elementList[0], br);
-    expect(() => elementList[1], throwsRangeError);
-  });
-}
diff --git a/tests/lib_2/html/fontface_loaded_test.dart b/tests/lib_2/html/fontface_loaded_test.dart
deleted file mode 100644
index 2abea51ea59..00000000000
--- a/tests/lib_2/html/fontface_loaded_test.dart
+++ /dev/null
@@ -1,63 +0,0 @@
-
-// @dart = 2.9
-library fontface_loaded_test;
-
-import 'package:async_helper/async_minitest.dart';
-
-import 'dart:async';
-import 'dart:isolate';
-import 'dart:html';
-
-class NullTreeSanitizer implements NodeTreeSanitizer {
-  void sanitizeTree(Node node) {}
-}
-
-main() {
-  var style = new Element.html(
-      '''
-      <style>
-      @font-face {
-        font-family: 'Ahem';
-        src: url(/root_dart/tests/lib_2/html/Ahem.ttf);
-        font-style: italic;
-        font-weight: 300;
-        unicode-range: U+0-3FF;
-        font-variant: small-caps;
-        -webkit-font-feature-settings: "dlig" 1;
-        /* font-stretch property is not supported */
-      }
-      </style>
-      ''',
-      treeSanitizer: new NullTreeSanitizer());
-  document.head.append(style);
-
-  test('document fonts - temporary', () async {
-    var atLeastOneFont = false;
-    var loaded = <Future<FontFace>>[];
-    document.fonts.forEach((FontFace fontFace, _, __) async {
-      atLeastOneFont = true;
-      var f1 = fontFace.loaded;
-      var f2 = fontFace.loaded;
-      loaded.add(fontFace.load());
-      loaded.add(f1);
-      loaded.add(f2);
-    });
-    expect(atLeastOneFont, isTrue);
-    return Future.wait(loaded).then(expectAsync((_) async {
-      document.fonts.forEach((fontFace, _, __) {
-        expect(fontFace.status, 'loaded');
-      });
-      expect(loaded.length, 3);
-      for (var loadedEntry in loaded) {
-        var fontFace = await loadedEntry;
-        expect(fontFace.status, 'loaded');
-        var fontFamily = fontFace.family;
-        if (fontFamily.startsWith('"')) {
-          // FF wraps family in quotes - remove the quotes.
-          fontFamily = fontFamily.substring(1, fontFamily.length - 1);
-        }
-        expect(fontFamily, 'Ahem');
-      }
-    }));
-  });
-}
diff --git a/tests/lib_2/html/fontface_test.dart b/tests/lib_2/html/fontface_test.dart
deleted file mode 100644
index 522f5dabda7..00000000000
--- a/tests/lib_2/html/fontface_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test("Creation with parameters", () {
-    var font = new FontFace('Ahem', 'url(Ahem.ttf)', {'variant': 'small-caps'});
-    expect(font is FontFace, isTrue);
-    expect(font.family, 'Ahem');
-    expect(font.variant, 'small-caps');
-  });
-}
diff --git a/tests/lib_2/html/form_data_test.dart b/tests/lib_2/html/form_data_test.dart
deleted file mode 100644
index aa920594e6d..00000000000
--- a/tests/lib_2/html/form_data_test.dart
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library FormDataTest;
-
-import 'package:async_helper/async_minitest.dart';
-import 'dart:html';
-
-void main() {
-  // TODO(efortuna): This is a bad test. Revisit when we have tests that can run
-  // both a server and fire up a browser.
-  group('supported', () {
-    test('supported', () {
-      expect(FormData.supported, isTrue);
-    });
-  });
-
-  group('functional', () {
-    test('unsupported throws', () {
-      var expectation = FormData.supported ? returnsNormally : throws;
-      expect(() {
-        new FormData();
-      }, expectation);
-    });
-
-    var isFormData = predicate((x) => x is FormData, 'is a FormData');
-
-    if (FormData.supported) {
-      test('constructorTest1', () {
-        var form = new FormData();
-        expect(form, isNotNull);
-        expect(form, isFormData);
-      });
-
-      test('constructorTest2', () {
-        var form = new FormData(new FormElement());
-        expect(form, isNotNull);
-        expect(form, isFormData);
-      });
-
-      test('appendTest', () {
-        var form = new FormData();
-        form.append('test', '1');
-        form.append('username', 'Elmo');
-        form.append('address', '1 Sesame Street');
-        form.append('password', '123456');
-        expect(form, isNotNull);
-      });
-
-      test('appendBlob', () {
-        var form = new FormData();
-        var blob = new Blob(
-            ['Indescribable... Indestructible! Nothing can stop it!'],
-            'text/plain');
-        form.appendBlob('theBlob', blob, 'theBlob.txt');
-      });
-
-      test('send', () {
-        var form = new FormData();
-        var blobString =
-            'Indescribable... Indestructible! Nothing can stop it!';
-        var blob = new Blob([blobString], 'text/plain');
-        form.appendBlob('theBlob', blob, 'theBlob.txt');
-
-        var xhr = new HttpRequest();
-        xhr.open('POST',
-            '${window.location.protocol}//${window.location.host}/echo');
-
-        xhr.onLoad.listen(expectAsync((e) {
-          expect(xhr.responseText.contains(blobString), isTrue);
-        }));
-        xhr.onError.listen((e) {
-          fail('$e');
-        });
-        xhr.send(form);
-      });
-    }
-  });
-}
diff --git a/tests/lib_2/html/form_element_test.dart b/tests/lib_2/html/form_element_test.dart
deleted file mode 100644
index 2b30e1750ca..00000000000
--- a/tests/lib_2/html/form_element_test.dart
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-void main() {
-  var isFormElement = predicate((x) => x is FormElement, 'is a FormElement');
-
-  test('constructorTest1', () {
-    var form = new FormElement();
-    expect(form, isNotNull);
-    expect(form, isFormElement);
-  });
-
-  test('checkValidityTest', () {
-    var form = new FormElement();
-    form.innerHtml = '<label>Google: <input type="search" name="q"></label> '
-        '<input type="submit" value="Search...">';
-    expect(form.checkValidity(), isTrue);
-    // TODO(efortuna): Issue 4832.
-    form.innerHtml = '<input type="email" value="notemail" blaber="test"'
-        ' required>';
-    expect(form.checkValidity(), isFalse);
-  });
-
-  var form = new FormElement();
-  test('acceptCharsetTest', () {
-    var charset = 'abc';
-    form.acceptCharset = charset;
-    expect(form.acceptCharset, charset);
-  });
-
-  test('actionTest', () {
-    var action = 'http://dartlang.org/';
-    form.action = action;
-    expect(form.action, action);
-  });
-
-  test('autocompleteTest', () {
-    var auto = 'on';
-    form.autocomplete = auto;
-    expect(form.autocomplete, auto);
-  });
-
-  test('encodingAndEnctypeTest', () {
-    expect(form.enctype, form.encoding);
-  });
-
-  test('lengthTest', () {
-    expect(form.length, 0);
-    form.innerHtml = '<label>Google: <input type="search" name="q"></label> '
-        '<input type="submit" value="Search...">';
-    expect(form.length, 2);
-  });
-
-  test('methodTest', () {
-    var method = 'post';
-    form.method = method;
-    expect(form.method, method);
-  });
-
-  test('nameTest', () {
-    var name = 'aname';
-    form.name = name;
-    expect(form.name, name);
-  });
-
-  test('noValidateTest', () {
-    form.noValidate = true;
-    expect(form.noValidate, true);
-  });
-
-  test('targetTest', () {
-    var target = 'target';
-    form.target = target;
-    expect(form.target, target);
-  });
-}
diff --git a/tests/lib_2/html/gamepad_test.dart b/tests/lib_2/html/gamepad_test.dart
deleted file mode 100644
index 2a50bb6cef6..00000000000
--- a/tests/lib_2/html/gamepad_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-
-// @dart = 2.9
-import 'package:expect/minitest.dart';
-import 'dart:html';
-
-main() {
-  var isGamepadList =
-      predicate((x) => x is List<Gamepad>, 'is a List<Gamepad>');
-
-  insertTestDiv() {
-    var element = new Element.tag('div');
-    element.innerHtml = r'''
-    A large block of text should go here. Click this
-    block of text multiple times to see each line
-    highlight with every click of the mouse button.
-    ''';
-    document.body.append(element);
-    return element;
-  }
-
-  test("getGamepads", () {
-    insertTestDiv();
-    var gamepads = window.navigator.getGamepads();
-    expect(gamepads, isGamepadList);
-    for (var gamepad in gamepads) {
-      if (gamepad != null) {
-        expect(gamepad.id, isNotNull);
-      }
-    }
-  });
-}
diff --git a/tests/lib_2/html/geolocation_test.dart b/tests/lib_2/html/geolocation_test.dart
deleted file mode 100644
index f05bfe44303..00000000000
--- a/tests/lib_2/html/geolocation_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  // Actual tests require browser interaction. This just makes sure the API
-  // is present.
-  test('is not null', () {
-    expect(window.navigator.geolocation, isNotNull);
-  });
-}
diff --git a/tests/lib_2/html/hidden_dom_1_test.dart b/tests/lib_2/html/hidden_dom_1_test.dart
deleted file mode 100644
index b4a5ca36b51..00000000000
--- a/tests/lib_2/html/hidden_dom_1_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-// Test that the dart:html API does not leak native jsdom methods:
-//   onfocus setter.
-
-main() {
-  test('test1', () {
-    document.body.children.add(new Element.html(r'''
-<div id='div1'>
-Hello World!
-</div>'''));
-    Element e = document.querySelector('#div1');
-    expect(e, isNotNull);
-
-    expect(() {
-      confuse(e).onfocus = null;
-    }, throwsNoSuchMethodError);
-  });
-}
-
-class Decoy {
-  void set onfocus(x) {
-    throw 'dead code';
-  }
-}
-
-confuse(x) => opaqueTrue() ? x : (opaqueTrue() ? new Object() : new Decoy());
-
-/** Returns `true`, but in a way that confuses the compiler. */
-opaqueTrue() => true; // Expand as needed.
diff --git a/tests/lib_2/html/hidden_dom_2_test.dart b/tests/lib_2/html/hidden_dom_2_test.dart
deleted file mode 100644
index 35db625c12c..00000000000
--- a/tests/lib_2/html/hidden_dom_2_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-// Test that the dart:html API does not leak native jsdom methods:
-//   appendChild operation.
-
-main() {
-  test('test1', () {
-    document.body.children.add(new Element.html(r'''
-<div id='div1'>
-Hello World!
-</div>'''));
-    Element e = document.querySelector('#div1');
-    Element e2 = new Element.html(r"<div id='xx'>XX</div>");
-    expect(e, isNotNull);
-
-    expect(() {
-      confuse(e).appendChild(e2);
-    }, throwsNoSuchMethodError);
-  });
-}
-
-class Decoy {
-  void appendChild(x) {
-    throw 'dead code';
-  }
-}
-
-confuse(x) => opaqueTrue() ? x : (opaqueTrue() ? new Object() : new Decoy());
-
-/** Returns `true`, but in a way that confuses the compiler. */
-opaqueTrue() => true; // Expand as needed.
diff --git a/tests/lib_2/html/history_hash_change_test.dart b/tests/lib_2/html/history_hash_change_test.dart
deleted file mode 100644
index d3918101836..00000000000
--- a/tests/lib_2/html/history_hash_change_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-
-// @dart = 2.9
-library HistoryTest;
-
-import 'package:async_helper/async_minitest.dart';
-import 'dart:html';
-import 'dart:async';
-
-main() {
-  test('supported', () {
-    expect(HashChangeEvent.supported, true);
-  });
-}
-
diff --git a/tests/lib_2/html/history_supported_test.dart b/tests/lib_2/html/history_supported_test.dart
deleted file mode 100644
index 97b188e6086..00000000000
--- a/tests/lib_2/html/history_supported_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-
-// @dart = 2.9
-library HistoryTest;
-
-import 'package:async_helper/async_minitest.dart';
-import 'dart:html';
-import 'dart:async';
-
-main() {
-  test('supports_state', () {
-    expect(History.supportsState, true);
-  });
-
-  test('supported_HashChangeEvent', () {
-    expect(HashChangeEvent.supported, true);
-  });
-}
diff --git a/tests/lib_2/html/history_test.dart b/tests/lib_2/html/history_test.dart
deleted file mode 100644
index 03cb68e9de2..00000000000
--- a/tests/lib_2/html/history_test.dart
+++ /dev/null
@@ -1,79 +0,0 @@
-
-// @dart = 2.9
-library HistoryTest;
-
-import 'package:async_helper/async_minitest.dart';
-import 'dart:html';
-import 'dart:async';
-
-main() {
-  var expectation = History.supportsState ? returnsNormally : throws;
-
-  test('pushState', () {
-    expect(() {
-      window.history.pushState(null, document.title, '?dummy');
-      var length = window.history.length;
-
-      window.history.pushState(null, document.title, '?foo=bar');
-
-      expect(window.location.href.endsWith('foo=bar'), isTrue);
-    }, expectation);
-  });
-
-  test('pushState with data', () {
-    expect(() {
-      window.history.pushState({'one': 1}, document.title, '?dummy');
-      expect(window.history.state, equals({'one': 1}));
-      window.history.pushState(null, document.title, '?foo=bar');
-
-      expect(window.location.href.endsWith('foo=bar'), isTrue);
-    }, expectation);
-  });
-
-  test('back', () {
-    expect(() {
-      window.history.pushState(null, document.title, '?dummy1');
-      window.history.pushState(null, document.title, '?dummy2');
-      var length = window.history.length;
-
-      expect(window.location.href.endsWith('dummy2'), isTrue);
-
-      // Need to wait a frame or two to let the pushState events occur.
-      new Timer(const Duration(milliseconds: 100), expectAsync(() {
-        window.onPopState.first.then(expectAsync((_) {
-          expect(window.history.length, length);
-          expect(window.location.href.endsWith('dummy1'), isTrue);
-        }));
-
-        window.history.back();
-      }));
-    }, expectation);
-  });
-
-  test('replaceState', () {
-    expect(() {
-      var length = window.history.length;
-
-      window.history.replaceState(null, document.title, '?foo=baz');
-      expect(window.history.length, length);
-      expect(window.location.href.endsWith('foo=baz'), isTrue);
-    }, expectation);
-  });
-
-  test('popstatevent', () {
-    expect(() {
-      var event = new Event.eventType('PopStateEvent', 'popstate');
-      expect(event is PopStateEvent, true);
-    }, expectation);
-  });
-
-  test('hashchangeevent', () {
-    var expectation = HashChangeEvent.supported ? returnsNormally : throws;
-    expect(() {
-      var event = new HashChangeEvent('change', oldUrl: 'old', newUrl: 'new');
-      expect(event is HashChangeEvent, true);
-      expect(event.oldUrl, 'old');
-      expect(event.newUrl, 'new');
-    }, expectation);
-  });
-}
diff --git a/tests/lib_2/html/html_mock_test.dart b/tests/lib_2/html/html_mock_test.dart
deleted file mode 100644
index dced1e1e16e..00000000000
--- a/tests/lib_2/html/html_mock_test.dart
+++ /dev/null
@@ -1,92 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-class Mock {
-  noSuchMethod(Invocation i) {
-    if (this is Window) return document;
-    if (this is FileList) return new MockFile();
-    return null;
-  }
-}
-
-class MockBodyElement extends Mock implements BodyElement {
-  Node append(Node e) => e;
-}
-
-class _EventListeners {
-  Stream<Event> get onBlur => new Stream.fromIterable([]);
-}
-
-class MockHtmlDocument extends Mock
-    with _EventListeners
-    implements HtmlDocument {
-  BodyElement get body => new MockBodyElement();
-}
-
-class MockWindow extends Mock with _EventListeners implements Window {
-  Stream<Event> get onBeforeUnload => new Stream.fromIterable([]);
-
-  String name = "MOCK_NAME";
-}
-
-class MockLocation extends Mock implements Location {
-  String href = "MOCK_HREF";
-}
-
-class MockFileList extends Mock implements FileList {}
-
-class MockFile extends Mock implements File {}
-
-main() {
-  test('is', () {
-    var win = new MockWindow();
-    expect(win is Window, isTrue);
-  });
-
-  test('getter', () {
-    var win = new MockWindow();
-    expect(win.document, equals(document));
-  });
-
-  test('override', () {
-    Window win = new MockWindow();
-    expect(win.onBeforeUnload != null, isTrue);
-    expect(win.name, equals("MOCK_NAME"));
-  });
-
-  test('override', () {
-    var loc1 = new MockLocation();
-    Location loc2 = loc1;
-    dynamic loc3 = loc1;
-    expect(loc1.href, equals("MOCK_HREF"));
-    loc1.href = "RESET";
-    expect(loc2.href, equals("RESET"));
-    loc2.href = "RESET2";
-    expect(loc3.href, equals("RESET2"));
-  });
-
-  test('method', () {
-    HtmlDocument doc = new MockHtmlDocument();
-    expect(doc.body.append(null), equals(null));
-  });
-
-  test('mixin', () {
-    Window win = new MockWindow();
-    expect(win.onBlur is Stream, isTrue, reason: 'onBlur should be a stream');
-    HtmlDocument doc = new MockHtmlDocument();
-    expect(doc.onBlur is Stream, isTrue, reason: 'onBlur should be a stream');
-  });
-
-  test('operator', () {
-    var fileList = new MockFileList();
-    expect(fileList[1] is File, isTrue);
-  });
-}
diff --git a/tests/lib_2/html/htmlcollection_test.dart b/tests/lib_2/html/htmlcollection_test.dart
deleted file mode 100644
index 5e8d8aa78ee..00000000000
--- a/tests/lib_2/html/htmlcollection_test.dart
+++ /dev/null
@@ -1,257 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-bool isChecked(Element e) => (e as CheckboxInputElement).checked;
-bool isUnchecked(Element e) => !(e as CheckboxInputElement).checked;
-
-// Test that List<Element> implements List<T>
-main() {
-  Element insertTestDiv() {
-    Element element = new Element.tag('div');
-    element.innerHtml = r"""
-<div id='allChecked'>
-<input type="checkbox" name="c1" value="1" checked="yes">
-<input type="checkbox" name="c2" value="2" checked="yes">
-<input type="checkbox" name="c3" value="3" checked="yes">
-<input type="checkbox" name="c4" value="4" checked="yes">
-</div>
-<div id='someChecked'>
-<input type="checkbox" name="s1" value="1" checked="yes">
-<input type="checkbox" name="s2" value="2">
-<input type="checkbox" name="s3" value="3" checked="yes">
-<input type="checkbox" name="s4" value="4">
-</div>
-<div id='noneChecked'>
-<input type="checkbox" name="n1" value="1">
-<input type="checkbox" name="n2" value="2">
-<input type="checkbox" name="n3" value="3">
-<input type="checkbox" name="n4" value="4">
-</div>
-<div id='emptyDiv'></div>
-""";
-    document.body.append(element);
-    return element;
-  }
-
-  test('IsList', () {
-    Element root = insertTestDiv();
-
-    List<Element> eachChecked = document.querySelector('#allChecked').children;
-
-    expect(eachChecked is List, isTrue);
-
-    root.remove();
-  });
-  test('Every', () {
-    Element root = insertTestDiv();
-
-    List<Element> eachChecked = document.querySelector('#allChecked').children;
-
-    List<Element> someChecked = document.querySelector('#someChecked').children;
-
-    List<Element> noneChecked = document.querySelector('#noneChecked').children;
-
-    expect(eachChecked.length, 4);
-    expect(someChecked.length, 4);
-    expect(noneChecked.length, 4);
-
-    expect(eachChecked.every(isChecked), isTrue);
-    expect(eachChecked.every(isUnchecked), isFalse);
-    expect(someChecked.every(isChecked), isFalse);
-    expect(someChecked.every(isUnchecked), isFalse);
-    expect(noneChecked.every(isChecked), isFalse);
-    expect(noneChecked.every(isUnchecked), isTrue);
-
-    root.remove();
-  });
-  test('Some', () {
-    Element root = insertTestDiv();
-
-    List<Element> eachChecked = document.querySelector('#allChecked').children;
-
-    List<Element> someChecked = document.querySelector('#someChecked').children;
-
-    List<Element> noneChecked = document.querySelector('#noneChecked').children;
-
-    expect(eachChecked.length, 4);
-    expect(someChecked.length, 4);
-    expect(noneChecked.length, 4);
-
-    expect(eachChecked.any(isChecked), isTrue);
-    expect(eachChecked.any(isUnchecked), isFalse);
-    expect(someChecked.any(isChecked), isTrue);
-    expect(someChecked.any(isUnchecked), isTrue);
-    expect(noneChecked.any(isChecked), isFalse);
-    expect(noneChecked.any(isUnchecked), isTrue);
-
-    root.remove();
-  });
-  test('Filter', () {
-    Element root = insertTestDiv();
-
-    List<Element> eachChecked = document.querySelector('#allChecked').children;
-
-    List<Element> someChecked = document.querySelector('#someChecked').children;
-
-    List<Element> noneChecked = document.querySelector('#noneChecked').children;
-
-    expect(eachChecked.length, 4);
-    expect(someChecked.length, 4);
-    expect(noneChecked.length, 4);
-
-    expect(eachChecked.where(isChecked).length, 4);
-    expect(eachChecked.where(isUnchecked).length, 0);
-    expect(someChecked.where(isChecked).length, 2);
-    expect(someChecked.where(isUnchecked).length, 2);
-    expect(noneChecked.where(isChecked).length, 0);
-    expect(noneChecked.where(isUnchecked).length, 4);
-
-    root.remove();
-  });
-  test('IsEmpty', () {
-    Element root = insertTestDiv();
-
-    List<Element> someChecked = document.querySelector('#someChecked').children;
-
-    List<Element> emptyDiv = document.querySelector('#emptyDiv').children;
-
-    expect(someChecked.length, 4);
-    expect(emptyDiv.length, 0);
-
-    expect(someChecked.isEmpty, isFalse);
-    expect(emptyDiv.isEmpty, isTrue);
-
-    root.remove();
-  });
-
-  int countWithForEach(collection, predicate) {
-    int count = 0;
-    collection.forEach((element) {
-      if (predicate(element)) count++;
-    });
-    return count;
-  }
-
-  test('ForEach', () {
-    Element root = insertTestDiv();
-
-    List<Element> eachChecked = document.querySelector('#allChecked').children;
-
-    List<Element> someChecked = document.querySelector('#someChecked').children;
-
-    List<Element> noneChecked = document.querySelector('#noneChecked').children;
-
-    expect(eachChecked.length, 4);
-    expect(someChecked.length, 4);
-    expect(noneChecked.length, 4);
-
-    expect(countWithForEach(eachChecked, isChecked), 4);
-    expect(countWithForEach(eachChecked, isUnchecked), 0);
-    expect(countWithForEach(someChecked, isChecked), 2);
-    expect(countWithForEach(someChecked, isUnchecked), 2);
-    expect(countWithForEach(noneChecked, isChecked), 0);
-    expect(countWithForEach(noneChecked, isUnchecked), 4);
-
-    root.remove();
-  });
-
-  int countWithForLoop(collection, predicate) {
-    int count = 0;
-    for (var element in collection) {
-      if (predicate(element)) count++;
-    }
-    return count;
-  }
-
-  test('ForLoop', () {
-    // Uses iterator.
-    Element root = insertTestDiv();
-
-    List<Element> eachChecked = document.querySelector('#allChecked').children;
-
-    List<Element> someChecked = document.querySelector('#someChecked').children;
-
-    List<Element> noneChecked = document.querySelector('#noneChecked').children;
-
-    expect(eachChecked.length, 4);
-    expect(someChecked.length, 4);
-    expect(noneChecked.length, 4);
-
-    expect(countWithForLoop(eachChecked, isChecked), 4);
-    expect(countWithForLoop(eachChecked, isUnchecked), 0);
-    expect(countWithForLoop(someChecked, isChecked), 2);
-    expect(countWithForLoop(someChecked, isUnchecked), 2);
-    expect(countWithForLoop(noneChecked, isChecked), 0);
-    expect(countWithForLoop(noneChecked, isUnchecked), 4);
-
-    root.remove();
-  });
-  test('Last', () {
-    Element root = insertTestDiv();
-
-    List<Element> someChecked = document.querySelector('#someChecked').children;
-
-    expect(someChecked.length, 4);
-
-    expect(someChecked.last, equals(someChecked[3]));
-
-    root.remove();
-  });
-  test('IndexOf', () {
-    Element root = insertTestDiv();
-
-    List<Element> someChecked = document.querySelector('#someChecked').children;
-
-    List<Element> noneChecked = document.querySelector('#noneChecked').children;
-
-    expect(someChecked.length, 4);
-    expect(noneChecked.length, 4);
-
-    expect(someChecked.indexOf(someChecked[0], 0), 0);
-    expect(someChecked.indexOf(someChecked[1], 0), 1);
-    expect(someChecked.indexOf(someChecked[2], 0), 2);
-    expect(someChecked.indexOf(someChecked[3], 0), 3);
-
-    expect(someChecked.indexOf(someChecked[0], 1), -1);
-    expect(someChecked.indexOf(someChecked[1], 2), -1);
-    expect(someChecked.indexOf(someChecked[2], 3), -1);
-    expect(someChecked.indexOf(someChecked[3], 4), -1);
-
-    expect(someChecked.indexOf(noneChecked[0], 0), -1);
-    expect(noneChecked.indexOf(someChecked[0], 0), -1);
-    expect(someChecked.indexOf(noneChecked[1], 0), -1);
-    expect(noneChecked.indexOf(someChecked[1], 0), -1);
-
-    root.remove();
-  });
-  test('LastIndexOf', () {
-    Element root = insertTestDiv();
-
-    List<Element> someChecked = document.querySelector('#someChecked').children;
-
-    List<Element> noneChecked = document.querySelector('#noneChecked').children;
-
-    expect(someChecked.length, 4);
-    expect(noneChecked.length, 4);
-
-    expect(someChecked.lastIndexOf(someChecked[0], 3), 0);
-    expect(someChecked.lastIndexOf(someChecked[1], 3), 1);
-    expect(someChecked.lastIndexOf(someChecked[2], 3), 2);
-    expect(someChecked.lastIndexOf(someChecked[3], 3), 3);
-
-    expect(someChecked.lastIndexOf(someChecked[0], -1), -1);
-    expect(someChecked.lastIndexOf(someChecked[1], 0), -1);
-    expect(someChecked.lastIndexOf(someChecked[2], 1), -1);
-    expect(someChecked.lastIndexOf(someChecked[3], 2), -1);
-
-    expect(someChecked.lastIndexOf(noneChecked[0], 3), -1);
-    expect(noneChecked.lastIndexOf(someChecked[0], 3), -1);
-    expect(someChecked.lastIndexOf(noneChecked[1], 3), -1);
-    expect(noneChecked.lastIndexOf(someChecked[1], 3), -1);
-
-    root.remove();
-  });
-}
diff --git a/tests/lib_2/html/htmlelement_test.dart b/tests/lib_2/html/htmlelement_test.dart
deleted file mode 100644
index 0c8680569b9..00000000000
--- a/tests/lib_2/html/htmlelement_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-import 'utils.dart';
-
-main() {
-  test('InnerHTML', () {
-    Element element = new Element.tag('div');
-    element.id = 'test';
-    element.innerHtml = 'Hello World';
-    document.body.append(element);
-
-    element = document.querySelector('#test');
-    expect(element.innerHtml, 'Hello World');
-    element.remove();
-  });
-  test('HTMLTable', () {
-    TableElement table = new Element.tag('table');
-
-    TableRowElement row = new Element.tag('tr');
-    table.append(row);
-
-    row.append(new Element.tag('td'));
-    row.append(new Element.tag('td'));
-
-    expect(row.cells.length, 2);
-
-    TableRowElement headerRow = table.rows[0];
-    expect(headerRow.cells.length, 2);
-  });
-  test('dataset', () {
-    Element div = new Element.tag('div');
-
-    expect(div.dataset.isEmpty, isTrue);
-    expect(div.dataset['foo'], isNull);
-    expect(div.dataset.isEmpty, isTrue);
-
-    div.dataset['foo'] = 'foo-value';
-    expect(div.dataset['foo'], 'foo-value');
-    expect(div.dataset.isEmpty, isFalse);
-
-    expect(div.dataset.containsValue('foo-value'), isTrue);
-    expect(div.dataset.containsValue('bar-value'), isFalse);
-    expect(div.dataset.containsKey('foo'), isTrue);
-    expect(div.dataset.containsKey('bar'), isFalse);
-
-    bool hasBeenInvoked;
-    String f() {
-      hasBeenInvoked = true;
-      return 'bar-value';
-    }
-
-    hasBeenInvoked = false;
-    expect(div.dataset.putIfAbsent('bar', f), 'bar-value');
-    expect(hasBeenInvoked, isTrue);
-
-    hasBeenInvoked = false;
-    expect(div.dataset.putIfAbsent('bar', f), 'bar-value');
-    expect(hasBeenInvoked, isFalse);
-
-    final keys = <String>[];
-    final values = <String>[];
-    div.dataset.forEach((String key, String value) {
-      keys.add(key);
-      values.add(value);
-    });
-    expect(keys, unorderedEquals(['foo', 'bar']));
-    expect(values, unorderedEquals(['foo-value', 'bar-value']));
-
-    expect(new List<String>.from(div.dataset.keys),
-        unorderedEquals(['foo', 'bar']));
-    expect(new List<String>.from(div.dataset.values),
-        unorderedEquals(['foo-value', 'bar-value']));
-
-    expect(div.dataset.length, 2);
-    expect(div.dataset.isEmpty, isFalse);
-
-    expect(div.dataset.remove('qux'), isNull);
-    expect(div.dataset.length, 2);
-    expect(div.dataset.isEmpty, isFalse);
-
-    expect(div.dataset.remove('foo'), 'foo-value');
-    expect(div.dataset.length, 1);
-    expect(div.dataset.isEmpty, isFalse);
-
-    div.dataset.clear();
-    expect(div.dataset.length, 0);
-    expect(div.dataset.isEmpty, isTrue);
-
-    Element otherDiv = new Element.html(
-        '<div id="dataDiv" data-my-message="Hello World"></div>',
-        treeSanitizer: new NullTreeSanitizer());
-    expect(otherDiv.dataset.containsKey('myMessage'), isTrue);
-
-    Element anotherDiv = new Element.html(
-        '<div id="dataDiv" data-eggs="bacon"></div>',
-        treeSanitizer: new NullTreeSanitizer());
-    expect(anotherDiv.dataset.containsKey('eggs'), isTrue);
-  });
-}
diff --git a/tests/lib_2/html/htmloptionscollection_test.dart b/tests/lib_2/html/htmloptionscollection_test.dart
deleted file mode 100644
index 7177be7156c..00000000000
--- a/tests/lib_2/html/htmloptionscollection_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('indexedAccessTest', () {
-    // FIXME: we need some massaging to dart:html to enable HTMLOptionsCollection.add
-    // and hence programatic building of collection.
-    SelectElement selectElement = new Element.html('''
-      <select>
-        <option value="0">Option0</option>
-        <option value="1">Option1</option>
-        <option value="2">Option2</option>
-      ''');
-    final optionsCollection = selectElement.options;
-
-    expect(optionsCollection[0].value, equals('0'));
-    expect(optionsCollection[1].value, equals('1'));
-    expect(optionsCollection[2].value, equals('2'));
-
-    expect(optionsCollection[0].text, equals('Option0'));
-    expect(optionsCollection[1].text, equals('Option1'));
-    expect(optionsCollection[2].text, equals('Option2'));
-
-    expect(() {
-      (optionsCollection as dynamic)[0] = 1;
-    }, throws);
-
-    // OPTIONALS optionsCollection[0] = new OptionElement(value: '42', data: 'Option42');
-    expect(() {
-      optionsCollection[0] = new OptionElement(data: 'Option42', value: '42');
-    }, throws);
-  });
-}
diff --git a/tests/lib_2/html/http_test.dart b/tests/lib_2/html/http_test.dart
deleted file mode 100644
index 48b9efa349d..00000000000
--- a/tests/lib_2/html/http_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-bool testSwitch(int currentValue) {
-  switch (currentValue) {
-    case HttpStatus.continue_:
-      return true;
-    case HttpStatus.ok:
-      return true;
-    case HttpStatus.NETWORK_CONNECT_TIMEOUT_ERROR:
-      return true;
-  }
-
-  return false;
-}
-
-main() {
-  expect(testSwitch(HttpStatus.continue_), isTrue);
-  expect(testSwitch(HttpStatus.CONTINUE), isTrue);
-
-  expect(testSwitch(HttpStatus.ok), isTrue);
-  expect(testSwitch(HttpStatus.OK), isTrue);
-
-  expect(testSwitch(HttpStatus.networkConnectTimeoutError), isTrue);
-  expect(testSwitch(HttpStatus.NETWORK_CONNECT_TIMEOUT_ERROR), isTrue);
-
-  expect(testSwitch(-20100), isFalse);
-}
diff --git a/tests/lib_2/html/indexeddb_1_test.dart b/tests/lib_2/html/indexeddb_1_test.dart
deleted file mode 100644
index 9edf491d3bc..00000000000
--- a/tests/lib_2/html/indexeddb_1_test.dart
+++ /dev/null
@@ -1,188 +0,0 @@
-
-// @dart = 2.9
-library IndexedDB1Test;
-
-import 'package:async_helper/async_minitest.dart';
-import 'dart:async';
-import 'dart:html' as html;
-import 'dart:math' as math;
-import 'dart:indexed_db' as idb;
-
-const String STORE_NAME = 'TEST';
-const int VERSION = 1;
-
-var databaseNameIndex = 0;
-String nextDatabaseName() {
-  return 'Test1_${databaseNameIndex++}';
-}
-
-Future testUpgrade() {
-  var dbName = nextDatabaseName();
-  var upgraded = false;
-
-  // Delete any existing DBs.
-  return html.window.indexedDB.deleteDatabase(dbName).then((_) {
-    return html.window.indexedDB
-        .open(dbName, version: 1, onUpgradeNeeded: (e) {});
-  }).then((db) {
-    db.close();
-  }).then((_) {
-    return html.window.indexedDB.open(dbName, version: 2, onUpgradeNeeded: (e) {
-      expect(e.oldVersion, 1);
-      expect(e.newVersion, 2);
-      upgraded = true;
-    });
-  }).then((_) {
-    expect(upgraded, isTrue);
-  });
-}
-
-testReadWrite(key, value, matcher,
-        [dbName,
-        storeName = STORE_NAME,
-        version = VERSION,
-        stringifyResult = false]) =>
-    () {
-      if (dbName == null) {
-        dbName = nextDatabaseName();
-      }
-      createObjectStore(e) {
-        idb.ObjectStore store = e.target.result.createObjectStore(storeName);
-        expect(store, isNotNull);
-      }
-
-      idb.Database db;
-      return html.window.indexedDB.deleteDatabase(dbName).then((_) {
-        return html.window.indexedDB
-            .open(dbName, version: version, onUpgradeNeeded: createObjectStore);
-      }).then((idb.Database result) {
-        db = result;
-        var transaction = db.transactionList([storeName], 'readwrite');
-        transaction.objectStore(storeName).put(value, key);
-        return transaction.completed;
-      }).then((_) {
-        var transaction = db.transaction(storeName, 'readonly');
-        return transaction.objectStore(storeName).getObject(key);
-      }).then((object) {
-        db.close();
-        if (stringifyResult) {
-          // Stringify the numbers to verify that we're correctly returning ints
-          // as ints vs doubles.
-          expect(object.toString(), matcher);
-        } else {
-          expect(object, matcher);
-        }
-      }).whenComplete(() {
-        if (db != null) {
-          db.close();
-        }
-        return html.window.indexedDB.deleteDatabase(dbName);
-      });
-    };
-
-testReadWriteTyped(key, value, matcher,
-        [dbName,
-        String storeName = STORE_NAME,
-        version = VERSION,
-        stringifyResult = false]) =>
-    () {
-      if (dbName == null) {
-        dbName = nextDatabaseName();
-      }
-      void createObjectStore(e) {
-        var store = e.target.result.createObjectStore(storeName);
-        expect(store, isNotNull);
-      }
-
-      idb.Database db;
-      // Delete any existing DBs.
-      return html.window.indexedDB.deleteDatabase(dbName).then((_) {
-        return html.window.indexedDB
-            .open(dbName, version: version, onUpgradeNeeded: createObjectStore);
-      }).then((idb.Database result) {
-        db = result;
-        idb.Transaction transaction =
-            db.transactionList([storeName], 'readwrite');
-        transaction.objectStore(storeName).put(value, key);
-
-        return transaction.completed;
-      }).then((idb.Database result) {
-        idb.Transaction transaction = db.transaction(storeName, 'readonly');
-        return transaction.objectStore(storeName).getObject(key);
-      }).then((object) {
-        db.close();
-        if (stringifyResult) {
-          // Stringify the numbers to verify that we're correctly returning ints
-          // as ints vs doubles.
-          expect(object.toString(), matcher);
-        } else {
-          expect(object, matcher);
-        }
-      }).whenComplete(() {
-        if (db != null) {
-          db.close();
-        }
-        return html.window.indexedDB.deleteDatabase(dbName);
-      });
-    };
-
-void testTypes(testFunction) {
-  test('String', testFunction(123, 'Hoot!', equals('Hoot!')));
-  test('int', testFunction(123, 12345, equals(12345)));
-  test('List', testFunction(123, [1, 2, 3], equals([1, 2, 3])));
-  test('List 2', testFunction(123, [2, 3, 4], equals([2, 3, 4])));
-  test('bool', testFunction(123, [true, false], equals([true, false])));
-  test(
-      'largeInt',
-      testFunction(123, 1371854424211, equals("1371854424211"), null,
-          STORE_NAME, VERSION, true));
-  test(
-      'largeDoubleConvertedToInt',
-      testFunction(123, 1371854424211.0, equals("1371854424211"), null,
-          STORE_NAME, VERSION, true));
-  test(
-      'largeIntInMap',
-      testFunction(123, {'time': 4503599627370492},
-          equals("{time: 4503599627370492}"), null, STORE_NAME, VERSION, true));
-  var now = new DateTime.now();
-  test(
-      'DateTime',
-      testFunction(
-          123,
-          now,
-          predicate((date) =>
-              date.millisecondsSinceEpoch == now.millisecondsSinceEpoch)));
-}
-
-main() {
-  // Test that indexed_db is properly flagged as supported or not.
-  // Note that the rest of the indexed_db tests assume that this has been
-  // checked.
-  group('supported', () {
-    test('supported', () {
-      expect(idb.IdbFactory.supported, true);
-    });
-  });
-
-  group('functional', () {
-    test('throws when unsupported', () {
-      var expectation = idb.IdbFactory.supported ? returnsNormally : throws;
-
-      expect(() {
-        var db = html.window.indexedDB;
-        db.open('random_db');
-      }, expectation);
-    });
-
-    // Don't bother with these tests if it's unsupported.
-    if (idb.IdbFactory.supported) {
-      test('upgrade', testUpgrade);
-      group('dynamic', () {
-        testTypes(testReadWrite);
-      });
-      group('typed', () {
-        testTypes(testReadWriteTyped);
-      });
-    }
-  });
-}
diff --git a/tests/lib_2/html/indexeddb_2_test.dart b/tests/lib_2/html/indexeddb_2_test.dart
deleted file mode 100644
index 4da3a634b58..00000000000
--- a/tests/lib_2/html/indexeddb_2_test.dart
+++ /dev/null
@@ -1,131 +0,0 @@
-
-// @dart = 2.9
-library IndexedDB1Test;
-
-import 'package:async_helper/async_helper.dart';
-import 'package:async_helper/async_minitest.dart';
-import 'dart:async';
-import 'dart:html' as html;
-import 'dart:indexed_db' as idb;
-import 'dart:collection';
-import 'utils.dart';
-
-// Write and re-read Maps: simple Maps; Maps with DAGs; Maps with cycles.
-
-const String DB_NAME = 'Test2';
-const String STORE_NAME = 'TEST';
-const int VERSION = 1;
-
-testReadWrite(key, value, check,
-    [dbName = DB_NAME, storeName = STORE_NAME, version = VERSION]) async {
-  void createObjectStore(e) {
-    idb.ObjectStore store = e.target.result.createObjectStore(storeName);
-    expect(store, isNotNull);
-  }
-
-  idb.Database db;
-  // Delete any existing DBs.
-  try {
-    await html.window.indexedDB.deleteDatabase(dbName);
-    idb.Database db = await html.window.indexedDB
-        .open(dbName, version: version, onUpgradeNeeded: createObjectStore);
-
-    idb.Transaction transaction = db.transactionList([storeName], 'readwrite');
-    transaction.objectStore(storeName).put(value, key);
-
-    db = await transaction.completed;
-    transaction = db.transaction(storeName, 'readonly');
-    var object = await transaction.objectStore(storeName).getObject(key);
-
-    db.close();
-    check(value, object);
-  } catch (error) {
-    if (db != null) {
-      db.close();
-    }
-    throw error;
-  }
-}
-
-List<String> get nonNativeListData {
-  var list = <String>[];
-  list.add("data");
-  list.add("clone");
-  list.add("error");
-  list.add("test");
-  return list;
-}
-
-main() {
-  var obj1 = {'a': 100, 'b': 's'};
-  var obj2 = {'x': obj1, 'y': obj1}; // DAG.
-
-  var obj3 = {};
-  obj3['a'] = 100;
-  obj3['b'] = obj3; // Cycle.
-
-  var obj4 = new SplayTreeMap<String, dynamic>(); // Different implementation.
-  obj4['a'] = 100;
-  obj4['b'] = 's';
-
-  var cyclic_list = <Object>[1, 2, 3];
-  cyclic_list[1] = cyclic_list;
-
-  go(name, data) => testReadWrite(123, data, verifyGraph);
-
-  test('test_verifyGraph', () {
-    // Nice to know verifyGraph is working before we rely on it.
-    verifyGraph(obj4, obj4);
-    verifyGraph(obj1, new Map.from(obj1));
-    verifyGraph(obj4, new Map.from(obj4));
-
-    var l1 = [1, 2, 3];
-    var l2 = [
-      const [1, 2, 3],
-      const [1, 2, 3]
-    ];
-    verifyGraph([l1, l1], l2);
-    // Use a try-catch block, since failure can be an expect exception.
-    // package:expect does not allow catching test exceptions.
-    try {
-      verifyGraph([
-        [1, 2, 3],
-        [1, 2, 3]
-      ], l2);
-      fail("Expected failure in verifying the graph.");
-    } catch (_) {
-      // Expected failure. Continue.
-    }
-
-    verifyGraph(cyclic_list, cyclic_list);
-  });
-
-  // Don't bother with these tests if it's unsupported.
-  // Support is tested in indexeddb_1_test
-  if (idb.IdbFactory.supported) {
-    asyncTest(() async {
-      await go('test_simple', obj1);
-      await go('test_DAG', obj2);
-      await go('test_cycle', obj3);
-      await go('test_simple_splay', obj4);
-      await go('const_array_1', const [
-        const [1],
-        const [2]
-      ]);
-      await go('const_array_dag', const [
-        const [1],
-        const [1]
-      ]);
-      await go('array_deferred_copy', [1, 2, 3, obj3, obj3, 6]);
-      await go('array_deferred_copy_2', [
-        1,
-        2,
-        3,
-        [4, 5, obj3],
-        [obj3, 6]
-      ]);
-      await go('cyclic_list', cyclic_list);
-      await go('non-native lists', nonNativeListData);
-    });
-  }
-}
diff --git a/tests/lib_2/html/indexeddb_3_test.dart b/tests/lib_2/html/indexeddb_3_test.dart
deleted file mode 100644
index 61c46f60b49..00000000000
--- a/tests/lib_2/html/indexeddb_3_test.dart
+++ /dev/null
@@ -1,104 +0,0 @@
-
-// @dart = 2.9
-library IndexedDB3Test;
-
-import 'package:async_helper/async_helper.dart';
-import 'package:async_helper/async_minitest.dart';
-import 'dart:async';
-import 'dart:html' as html;
-import 'dart:indexed_db';
-
-// Read with cursor.
-
-const String DB_NAME = 'Test3';
-const String STORE_NAME = 'TEST';
-const int VERSION = 1;
-
-Future<Database> createAndOpenDb() {
-  return html.window.indexedDB.deleteDatabase(DB_NAME).then((_) {
-    return html.window.indexedDB.open(DB_NAME, version: VERSION,
-        onUpgradeNeeded: (VersionChangeEvent e) {
-      var db = e.target.result;
-      db.createObjectStore(STORE_NAME);
-    });
-  });
-}
-
-Future<Database> writeItems(Database db) {
-  Future<Object> write(index) {
-    var transaction = db.transaction(STORE_NAME, 'readwrite');
-    transaction.objectStore(STORE_NAME).put('Item $index', index);
-    return transaction.completed;
-  }
-
-  var future = write(0);
-  for (var i = 1; i < 100; ++i) {
-    future = future.then((_) => write(i));
-  }
-
-  // Chain on the DB so we return it at the end.
-  return future.then((_) => db);
-}
-
-Future<Database> setupDb() {
-  return createAndOpenDb().then(writeItems);
-}
-
-Future<Database> readAllViaCursor(Database db) {
-  Transaction txn = db.transaction(STORE_NAME, 'readonly');
-  ObjectStore objectStore = txn.objectStore(STORE_NAME);
-  int itemCount = 0;
-  int sumKeys = 0;
-  var lastKey = null;
-
-  var cursors = objectStore.openCursor().asBroadcastStream();
-  cursors.listen((cursor) {
-    ++itemCount;
-    lastKey = cursor.key;
-    sumKeys += cursor.key;
-    expect(cursor.value, 'Item ${cursor.key}');
-    cursor.next();
-  });
-  cursors.last.then((cursor) {
-    expect(lastKey, 99);
-    expect(sumKeys, (100 * 99) ~/ 2);
-    expect(itemCount, 100);
-  });
-
-  return cursors.last.then((_) => db);
-}
-
-Future<Database> readAllReversedViaCursor(Database db) {
-  Transaction txn = db.transaction(STORE_NAME, 'readonly');
-  ObjectStore objectStore = txn.objectStore(STORE_NAME);
-  int itemCount = 0;
-  int sumKeys = 0;
-  var lastKey = null;
-
-  var cursors = objectStore.openCursor(direction: 'prev').asBroadcastStream();
-  cursors.listen((cursor) {
-    ++itemCount;
-    lastKey = cursor.key;
-    sumKeys += cursor.key;
-    expect(cursor.value, 'Item ${cursor.key}');
-    cursor.next();
-  });
-  cursors.last.then((cursor) {
-    expect(lastKey, 0);
-    expect(sumKeys, (100 * 99) ~/ 2);
-    expect(itemCount, 100);
-  });
-  return cursors.last.then((_) => db);
-}
-
-main() {
-  // Don't bother with these tests if it's unsupported.
-  // Support is tested in indexeddb_1_test
-  if (IdbFactory.supported) {
-    asyncTest(() async {
-      var db = await setupDb();
-      await readAllViaCursor(db);
-      await readAllReversedViaCursor(db);
-    });
-  }
-}
diff --git a/tests/lib_2/html/indexeddb_4_test.dart b/tests/lib_2/html/indexeddb_4_test.dart
deleted file mode 100644
index c257ccbb28b..00000000000
--- a/tests/lib_2/html/indexeddb_4_test.dart
+++ /dev/null
@@ -1,122 +0,0 @@
-
-// @dart = 2.9
-library IndexedDB4Test;
-
-import 'package:async_helper/async_minitest.dart';
-import 'dart:async';
-import 'dart:html' as html;
-import 'dart:indexed_db';
-
-// Test for KeyRange and Cursor.
-
-const String DB_NAME = 'Test4';
-const String STORE_NAME = 'TEST';
-const int VERSION = 1;
-
-Future<Database> createAndOpenDb() {
-  return html.window.indexedDB.deleteDatabase(DB_NAME).then((_) {
-    return html.window.indexedDB.open(DB_NAME, version: VERSION,
-        onUpgradeNeeded: (e) {
-      var db = e.target.result;
-      db.createObjectStore(STORE_NAME);
-    });
-  });
-}
-
-Future<Database> writeItems(Database db) {
-  Future<Object> write(index) {
-    var transaction = db.transaction(STORE_NAME, 'readwrite');
-    return transaction
-        .objectStore(STORE_NAME)
-        .put({'content': 'Item $index'}, index);
-  }
-
-  var future = write(0);
-  for (var i = 1; i < 100; ++i) {
-    future = future.then((_) => write(i));
-  }
-
-  // Chain on the DB so we return it at the end.
-  return future.then((_) => db);
-}
-
-Future<Database> setupDb() {
-  return createAndOpenDb().then(writeItems);
-}
-
-testRange(db, range, expectedFirst, expectedLast) {
-  Transaction txn = db.transaction(STORE_NAME, 'readonly');
-  ObjectStore objectStore = txn.objectStore(STORE_NAME);
-  var cursors = objectStore
-      .openCursor(range: range, autoAdvance: true)
-      .asBroadcastStream();
-
-  int lastKey;
-  cursors.listen((cursor) {
-    lastKey = cursor.key;
-    var value = cursor.value;
-    expect(value['content'], 'Item ${cursor.key}');
-  });
-
-  if (expectedFirst != null) {
-    cursors.first.then((cursor) {
-      expect(cursor.key, expectedFirst);
-    });
-  }
-  if (expectedLast != null) {
-    cursors.last.then((cursor) {
-      expect(lastKey, expectedLast);
-    });
-  }
-
-  return cursors.length.then((length) {
-    if (expectedFirst == null) {
-      expect(length, 0);
-    } else {
-      expect(length, expectedLast - expectedFirst + 1);
-    }
-  });
-}
-
-main() async {
-  // Don't bother with these tests if it's unsupported.
-  // Support is tested in indexeddb_1_test
-  if (IdbFactory.supported) {
-    var db = await setupDb();
-    test('only1', () => testRange(db, new KeyRange.only(55), 55, 55));
-    test('only2', () => testRange(db, new KeyRange.only(100), null, null));
-    test('only3', () => testRange(db, new KeyRange.only(-1), null, null));
-
-    test('lower1', () => testRange(db, new KeyRange.lowerBound(40), 40, 99));
-    // OPTIONALS lower2() => testRange(db, new KeyRange.lowerBound(40, open: true), 41, 99);
-    test('lower2',
-        () => testRange(db, new KeyRange.lowerBound(40, true), 41, 99));
-    // OPTIONALS lower3() => testRange(db, new KeyRange.lowerBound(40, open: false), 40, 99);
-    test('lower3',
-        () => testRange(db, new KeyRange.lowerBound(40, false), 40, 99));
-
-    test('upper1', () => testRange(db, new KeyRange.upperBound(40), 0, 40));
-    // OPTIONALS upper2() => testRange(db, new KeyRange.upperBound(40, open: true), 0, 39);
-    test('upper2',
-        () => testRange(db, new KeyRange.upperBound(40, true), 0, 39));
-    // upper3() => testRange(db, new KeyRange.upperBound(40, open: false), 0, 40);
-    test('upper3',
-        () => testRange(db, new KeyRange.upperBound(40, false), 0, 40));
-
-    test('bound1', () => testRange(db, new KeyRange.bound(20, 30), 20, 30));
-
-    test('bound2', () => testRange(db, new KeyRange.bound(-100, 200), 0, 99));
-
-    bound3() =>
-        // OPTIONALS testRange(db, new KeyRange.bound(20, 30, upperOpen: true),
-        testRange(db, new KeyRange.bound(20, 30, false, true), 20, 29);
-
-    bound4() =>
-        // OPTIONALS testRange(db, new KeyRange.bound(20, 30, lowerOpen: true),
-        testRange(db, new KeyRange.bound(20, 30, true), 21, 30);
-
-    bound5() =>
-        // OPTIONALS testRange(db, new KeyRange.bound(20, 30, lowerOpen: true, upperOpen: true),
-        testRange(db, new KeyRange.bound(20, 30, true, true), 21, 29);
-  }
-}
diff --git a/tests/lib_2/html/indexeddb_5_test.dart b/tests/lib_2/html/indexeddb_5_test.dart
deleted file mode 100644
index c784ce6cd3b..00000000000
--- a/tests/lib_2/html/indexeddb_5_test.dart
+++ /dev/null
@@ -1,146 +0,0 @@
-
-// @dart = 2.9
-library IndexedDB1Test;
-
-import 'package:async_helper/async_helper.dart';
-import 'package:async_helper/async_minitest.dart';
-import 'dart:async';
-import 'dart:html' as html;
-import 'dart:indexed_db' as idb;
-
-var dbName = 'test_db_5';
-var storeName = 'test_store';
-var indexName = 'name_index';
-var db;
-var value = {'name_index': 'one', 'value': 'add_value'};
-
-Future testInit() async {
-  await html.window.indexedDB.deleteDatabase(dbName);
-  db = await html.window.indexedDB.open(dbName, version: 1,
-      onUpgradeNeeded: (idb.VersionChangeEvent e) {
-    var db = e.target.result;
-    var objectStore = db.createObjectStore(storeName, autoIncrement: true);
-    objectStore.createIndex(indexName, 'name_index', unique: false);
-  });
-}
-
-Future testAddDelete() async {
-  var transaction = db.transaction(storeName, 'readwrite');
-  var key = await transaction.objectStore(storeName).add(value);
-  await transaction.completed;
-  transaction = db.transaction(storeName, 'readonly');
-  var readValue = await transaction.objectStore(storeName).getObject(key);
-  expect(readValue['value'], value['value']);
-  await transaction.completed;
-  transaction = db.transactionList([storeName], 'readwrite');
-  await transaction.objectStore(storeName).delete(key);
-  await transaction.completed;
-  transaction = db.transactionList([storeName], 'readonly');
-  var count = await transaction.objectStore(storeName).count();
-  expect(count, 0);
-}
-
-Future testClearCount() async {
-  var transaction = db.transaction(storeName, 'readwrite');
-  transaction.objectStore(storeName).add(value);
-
-  await transaction.completed;
-  transaction = db.transaction(storeName, 'readonly');
-  var count = await transaction.objectStore(storeName).count();
-  expect(count, 1);
-  await transaction.completed;
-  transaction = db.transactionList([storeName], 'readwrite');
-  transaction.objectStore(storeName).clear();
-  await transaction.completed;
-  transaction = db.transactionList([storeName], 'readonly');
-  count = await transaction.objectStore(storeName).count();
-  expect(count, 0);
-}
-
-Future testIndex() async {
-  var transaction = db.transaction(storeName, 'readwrite');
-  transaction.objectStore(storeName).add(value);
-  transaction.objectStore(storeName).add(value);
-  transaction.objectStore(storeName).add(value);
-  transaction.objectStore(storeName).add(value);
-
-  await transaction.completed;
-  transaction = db.transactionList([storeName], 'readonly');
-  var index = transaction.objectStore(storeName).index(indexName);
-  var count = await index.count();
-  expect(count, 4);
-  await transaction.completed;
-  transaction = db.transaction(storeName, 'readonly');
-  index = transaction.objectStore(storeName).index(indexName);
-  var cursorsLength = await index.openCursor(autoAdvance: true).length;
-  expect(cursorsLength, 4);
-  await transaction.completed;
-  transaction = db.transaction(storeName, 'readonly');
-  index = transaction.objectStore(storeName).index(indexName);
-  cursorsLength = await index.openKeyCursor(autoAdvance: true).length;
-  expect(cursorsLength, 4);
-  await transaction.completed;
-  transaction = db.transaction(storeName, 'readonly');
-  index = transaction.objectStore(storeName).index(indexName);
-  var readValue = await index.get('one');
-  expect(readValue['value'], value['value']);
-  await transaction.completed;
-  transaction = db.transaction(storeName, 'readwrite');
-  transaction.objectStore(storeName).clear();
-  return transaction.completed;
-}
-
-Future testCursor() async {
-  var deleteValue = {'name_index': 'two', 'value': 'delete_value'};
-  var updateValue = {'name_index': 'three', 'value': 'update_value'};
-  var updatedValue = {'name_index': 'three', 'value': 'updated_value'};
-  var transaction = db.transaction(storeName, 'readwrite');
-  transaction.objectStore(storeName).add(value);
-  transaction.objectStore(storeName).add(deleteValue);
-  transaction.objectStore(storeName).add(updateValue);
-
-  await transaction.completed;
-  transaction = db.transactionList([storeName], 'readwrite');
-  var index = transaction.objectStore(storeName).index(indexName);
-  var cursors = index.openCursor().asBroadcastStream();
-
-  cursors.listen((cursor) {
-    var value = cursor.value;
-    if (value['value'] == 'delete_value') {
-      cursor.delete().then((_) {
-        cursor.next();
-      });
-    } else if (value['value'] == 'update_value') {
-      cursor.update(updatedValue).then((_) {
-        cursor.next();
-      });
-    } else {
-      cursor.next();
-    }
-  });
-  await cursors.last;
-  await transaction.completed;
-  transaction = db.transaction(storeName, 'readonly');
-  index = transaction.objectStore(storeName).index(indexName);
-  var readValue = await index.get('three');
-  expect(readValue['value'], 'updated_value');
-  await transaction.completed;
-  transaction = db.transaction(storeName, 'readonly');
-  index = transaction.objectStore(storeName).index(indexName);
-  readValue = await index.get('two');
-  expect(readValue, isNull);
-  return transaction.completed;
-}
-
-main() {
-  if (!idb.IdbFactory.supported) {
-    return;
-  }
-  asyncTest(() async {
-    await testInit();
-    await testAddDelete();
-    await testClearCount();
-    await testIndex();
-    await testCursor();
-  });
-}
diff --git a/tests/lib_2/html/input_element_attributes_test.dart b/tests/lib_2/html/input_element_attributes_test.dart
deleted file mode 100644
index 34ccb0527bb..00000000000
--- a/tests/lib_2/html/input_element_attributes_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-dynamic _undefined = (() => new List.filled(5, null)[0])();
-
-main() {
-  test('valueSetNull', () {
-    final e = new TextInputElement();
-    e.value = null;
-    expect(e.value, '');
-  });
-  test('valueSetNullProxy', () {
-    final e = new TextInputElement();
-    e.value = _undefined;
-    expect(e.value, '');
-  });
-}
diff --git a/tests/lib_2/html/input_element_constructor_test.dart b/tests/lib_2/html/input_element_constructor_test.dart
deleted file mode 100644
index 81f52ff6bb1..00000000000
--- a/tests/lib_2/html/input_element_constructor_test.dart
+++ /dev/null
@@ -1,112 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-void check(InputElement element, String type, [bool supported = true]) {
-  expect(element is InputElement, true);
-  if (supported) {
-    expect(element.type, type);
-  } else {
-    expect(element.type, 'text');
-  }
-}
-
-main() {
-  test('hidden', () {
-    check(new HiddenInputElement(), 'hidden');
-  });
-
-  test('search', () {
-    check(new SearchInputElement(), 'search', SearchInputElement.supported);
-  });
-
-  test('text', () {
-    check(new TextInputElement(), 'text');
-  });
-
-  test('url', () {
-    check(new UrlInputElement(), 'url', UrlInputElement.supported);
-  });
-
-  test('telephone', () {
-    check(
-        new TelephoneInputElement(), 'tel', TelephoneInputElement.supported);
-  });
-
-  test('email', () {
-    check(new EmailInputElement(), 'email', EmailInputElement.supported);
-  });
-
-  test('password', () {
-    check(new PasswordInputElement(), 'password');
-  });
-
-  test('date', () {
-    check(new DateInputElement(), 'date', DateInputElement.supported);
-  });
-
-  test('month', () {
-    check(new MonthInputElement(), 'month', MonthInputElement.supported);
-  });
-
-  test('week', () {
-    check(new WeekInputElement(), 'week', WeekInputElement.supported);
-  });
-
-  test('time', () {
-    check(new TimeInputElement(), 'time', TimeInputElement.supported);
-    if (TimeInputElement.supported) {
-      var element = new TimeInputElement();
-      var now = new DateTime.now();
-      element.valueAsDate = now;
-      expect(element.valueAsDate is DateTime, isTrue);
-
-      // Bug 8813, setting it is just going to the epoch.
-      //expect(element.valueAsDate, now);
-    }
-  });
-
-  test('datetime-local', () {
-    check(new LocalDateTimeInputElement(), 'datetime-local',
-        LocalDateTimeInputElement.supported);
-  });
-
-  test('number', () {
-    check(new NumberInputElement(), 'number', NumberInputElement.supported);
-  });
-
-  test('range', () {
-    check(new RangeInputElement(), 'range', RangeInputElement.supported);
-  });
-
-  test('checkbox', () {
-    check(new CheckboxInputElement(), 'checkbox');
-  });
-
-  test('radio', () {
-    check(new RadioButtonInputElement(), 'radio');
-  });
-
-  test('file', () {
-    check(new FileUploadInputElement(), 'file');
-  });
-
-  test('submit', () {
-    check(new SubmitButtonInputElement(), 'submit');
-  });
-
-  test('image', () {
-    check(new ImageButtonInputElement(), 'image');
-  });
-
-  test('reset', () {
-    check(new ResetButtonInputElement(), 'reset');
-  });
-
-  test('button', () {
-    check(new ButtonInputElement(), 'button');
-  });
-}
-
diff --git a/tests/lib_2/html/input_element_date_test.dart b/tests/lib_2/html/input_element_date_test.dart
deleted file mode 100644
index ef2b32a3cb5..00000000000
--- a/tests/lib_2/html/input_element_date_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('supported', () {
-     expect(DateInputElement.supported, true);
-  });
-}
diff --git a/tests/lib_2/html/input_element_datetime_test.dart b/tests/lib_2/html/input_element_datetime_test.dart
deleted file mode 100644
index ef85625330e..00000000000
--- a/tests/lib_2/html/input_element_datetime_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('supported', () {
-    expect(LocalDateTimeInputElement.supported, true);
-  });
-}
diff --git a/tests/lib_2/html/input_element_email_test.dart b/tests/lib_2/html/input_element_email_test.dart
deleted file mode 100644
index 42a11a33fda..00000000000
--- a/tests/lib_2/html/input_element_email_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('supported', () {
-    expect(EmailInputElement.supported, true);
-  });
-}
-
diff --git a/tests/lib_2/html/input_element_month_test.dart b/tests/lib_2/html/input_element_month_test.dart
deleted file mode 100644
index d5842dd41a7..00000000000
--- a/tests/lib_2/html/input_element_month_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('supported', () {
-    expect(MonthInputElement.supported, true);
-  });
-}
-
diff --git a/tests/lib_2/html/input_element_number_test.dart b/tests/lib_2/html/input_element_number_test.dart
deleted file mode 100644
index f82ac9da309..00000000000
--- a/tests/lib_2/html/input_element_number_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('supported', () {
-    expect(NumberInputElement.supported, true);
-  });
-}
diff --git a/tests/lib_2/html/input_element_range_test.dart b/tests/lib_2/html/input_element_range_test.dart
deleted file mode 100644
index 96b3822eb93..00000000000
--- a/tests/lib_2/html/input_element_range_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('supported', () {
-    expect(RangeInputElement.supported, true);
-  });
-}
diff --git a/tests/lib_2/html/input_element_search_test.dart b/tests/lib_2/html/input_element_search_test.dart
deleted file mode 100644
index 1f254e3ce35..00000000000
--- a/tests/lib_2/html/input_element_search_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('supported', () {
-    expect(SearchInputElement.supported, true);
-  });
-}
-
diff --git a/tests/lib_2/html/input_element_tel_test.dart b/tests/lib_2/html/input_element_tel_test.dart
deleted file mode 100644
index 1c80570af69..00000000000
--- a/tests/lib_2/html/input_element_tel_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('supported', () {
-    expect(TelephoneInputElement.supported, true);
-  });
-}
-
diff --git a/tests/lib_2/html/input_element_time_test.dart b/tests/lib_2/html/input_element_time_test.dart
deleted file mode 100644
index 3b76421aa34..00000000000
--- a/tests/lib_2/html/input_element_time_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('supported', () {
-    expect(TimeInputElement.supported, true);
-  });
-}
diff --git a/tests/lib_2/html/input_element_url_test.dart b/tests/lib_2/html/input_element_url_test.dart
deleted file mode 100644
index 5d707cc76b8..00000000000
--- a/tests/lib_2/html/input_element_url_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('supported', () {
-    expect(UrlInputElement.supported, true);
-  });
-}
-
diff --git a/tests/lib_2/html/input_element_week_test.dart b/tests/lib_2/html/input_element_week_test.dart
deleted file mode 100644
index 9b29589eef2..00000000000
--- a/tests/lib_2/html/input_element_week_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('supported', () {
-    expect(WeekInputElement.supported, true);
-  });
-}
diff --git a/tests/lib_2/html/instance_of_test.dart b/tests/lib_2/html/instance_of_test.dart
deleted file mode 100644
index 31ccadcea36..00000000000
--- a/tests/lib_2/html/instance_of_test.dart
+++ /dev/null
@@ -1,77 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  CanvasElement canvas;
-
-  canvas = new Element.tag('canvas');
-  canvas.attributes['width'] = '100';
-  canvas.attributes['height'] = '100';
-  document.body.append(canvas);
-
-  var isCanvasRenderingContext = predicate(
-      (x) => x is CanvasRenderingContext, 'is a CanvasRenderingContext');
-  var isNotCanvasRenderingContext = predicate(
-      (x) => x is! CanvasRenderingContext, 'is not a CanvasRenderingContext');
-  var isCanvasRenderingContext2D = predicate(
-      (x) => x is CanvasRenderingContext2D, 'is a CanvasRenderingContext2D');
-  var isNotCanvasRenderingContext2D = predicate(
-      (x) => x is! CanvasRenderingContext2D,
-      'is not a CanvasRenderingContext2D');
-  var isElement = predicate((x) => x is Element, 'is an Element');
-  var isNotElement = predicate((x) => x is! Element, 'is not an Element');
-  var isCanvasElement =
-      predicate((x) => x is CanvasElement, 'is a CanvasElement');
-  var isNotCanvasElement =
-      predicate((x) => x is! CanvasElement, 'is not a CanvasElement');
-  var isImageData = predicate((x) => x is ImageData, 'is an ImageData');
-  var isNotImageData = predicate((x) => x is! ImageData, 'is not an ImageData');
-  //var isUint8ClampedArray =
-  //  predicate((x) => x is Uint8ClampedArray, 'is a Uint8ClampedArray');
-  var isIntList = predicate((x) => x is List<int>, 'is a List<int>');
-
-  test('Instanceof', () {
-    expect(canvas, isNotCanvasRenderingContext);
-    expect(canvas, isNotCanvasRenderingContext2D);
-    expect(canvas, isElement);
-    expect(canvas, isCanvasElement);
-    expect(canvas, isNotImageData);
-    // expect(canvas, isNot(isCanvasPixelArray));
-
-    CanvasRenderingContext2D context = canvas.getContext('2d');
-    expect(context, isCanvasRenderingContext);
-    expect(context, isCanvasRenderingContext2D);
-    expect(context, isNotElement);
-    expect(context, isNotCanvasElement);
-    expect(context, isNotImageData);
-    // expect(context, isNot(isCanvasPixelArray));
-
-    // FIXME(b/5286633): Interface injection type check workaround.
-    var image = context.createImageData(
-        canvas.width as dynamic, canvas.height as dynamic);
-    expect(image, isNotCanvasRenderingContext);
-    expect(image, isNotCanvasRenderingContext2D);
-    expect(image, isNotElement);
-    expect(image, isNotCanvasElement);
-    expect(image, isImageData);
-    // expect(image, isNot(isCanvasPixelArray));
-
-    // Include CanvasPixelArray since constructor and prototype are not
-    // available until one is created.
-    var bytes = image.data;
-    expect(bytes, isNotCanvasRenderingContext);
-    expect(bytes, isNotCanvasRenderingContext2D);
-    expect(bytes, isNotElement);
-    expect(bytes, isNotCanvasElement);
-    expect(bytes, isNotImageData);
-    expect(bytes, isIntList);
-
-    // FIXME: Ensure this is an SpanElement when we next update
-    // WebKit IDL.
-    var span = new Element.tag('span');
-    expect(span, isElement);
-  });
-}
diff --git a/tests/lib_2/html/interactive_geolocation_test.dart b/tests/lib_2/html/interactive_geolocation_test.dart
deleted file mode 100644
index 6728e3d60e1..00000000000
--- a/tests/lib_2/html/interactive_geolocation_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library interactive_test;
-
-import 'dart:async';
-import 'dart:html';
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-import 'utils.dart';
-
-Future testGetCurrentPosition() async {
-  var position = await window.navigator.geolocation.getCurrentPosition();
-  Expect.isNotNull(position.coords.latitude);
-  Expect.isNotNull(position.coords.longitude);
-  Expect.isNotNull(position.coords.accuracy);
-}
-
-Future testWatchPosition() async {
-  var position = await window.navigator.geolocation.watchPosition().first;
-  Expect.isNotNull(position.coords.latitude);
-  Expect.isNotNull(position.coords.longitude);
-  Expect.isNotNull(position.coords.accuracy);
-}
-
-main() {
-  asyncTest(() async {
-    await testGetCurrentPosition();
-    await testWatchPosition();
-  });
-}
diff --git a/tests/lib_2/html/interactive_media_test.dart b/tests/lib_2/html/interactive_media_test.dart
deleted file mode 100644
index 81aeed7eee0..00000000000
--- a/tests/lib_2/html/interactive_media_test.dart
+++ /dev/null
@@ -1,94 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library interactive_test;
-
-import 'dart:async';
-import 'dart:html';
-
-import 'package:async_helper/async_minitest.dart';
-import 'package:async_helper/async_helper.dart';
-
-// NOTE: To test enable chrome://flags/#enable-experimental-web-platform-features
-
-testUserMediaAudio(Future userMediaFuture) async {
-  try {
-    var mediaStream = await userMediaFuture;
-    expect(mediaStream, isNotNull);
-    expect(mediaStream is MediaStream, true);
-    var devices = window.navigator.mediaDevices;
-    var enumDevices = await devices.enumerateDevices();
-    expect(enumDevices.length > 1, true);
-    for (var device in enumDevices) {
-      var goodDevLabel = device.label.endsWith('Built-in Output') ||
-          device.label.endsWith('Built-in Microphone');
-      expect(goodDevLabel, true);
-    }
-  } on DomException catch (e) {
-    // Could fail if bot machine doesn't support audio or video.
-    expect(e.name == DomException.NOT_FOUND, true);
-  }
-}
-
-testUserMediaVideo(Future userMediaFuture) async {
-  try {
-    var mediaStream = await userMediaFuture;
-    expect(mediaStream, isNotNull);
-
-    var url = Url.createObjectUrlFromStream(mediaStream);
-    expect(url, isNotNull);
-
-    var video = new VideoElement()..autoplay = true;
-
-    var completer = new Completer();
-    video.onError.listen((e) {
-      completer.completeError(e);
-    });
-    video.onPlaying.first.then((e) {
-      completer.complete(video);
-    });
-
-    document.body.append(video);
-    video.src = url;
-
-    await completer.future;
-  } on DomException catch (e) {
-    // Could fail if bot machine doesn't support audio or video.
-    expect(e.name == DomException.NOT_FOUND, true);
-  }
-}
-
-main() {
-  if (MediaStream.supported) {
-    test('getUserMedia audio', () async {
-      await testUserMediaAudio(window.navigator
-          .getUserMedia(audio: true)); // Deprecated way to get a media stream.
-      await testUserMediaAudio(
-          window.navigator.mediaDevices.getUserMedia({'audio': true}));
-    });
-
-    test('getUserMedia', () async {
-      await testUserMediaVideo(window.navigator
-          .getUserMedia(video: true)); // Deprecated way to get a media stream.
-      await testUserMediaVideo(
-          window.navigator.mediaDevices.getUserMedia({'video': true}));
-    });
-
-    test('getUserMediaComplexConstructor', () async {
-      var videoOptions = {
-        'mandatory': {'minAspectRatio': 1.333, 'maxAspectRatio': 1.334},
-        'optional': [
-          {'minFrameRate': 60},
-          {'maxWidth': 640}
-        ]
-      };
-      await testUserMediaVideo(window.navigator.getUserMedia(
-          video: videoOptions)); // Deprecated way to get a media stream.
-      await testUserMediaVideo(
-          window.navigator.mediaDevices.getUserMedia({'video': videoOptions}));
-    });
-  }
-}
diff --git a/tests/lib_2/html/interactive_test.dart b/tests/lib_2/html/interactive_test.dart
deleted file mode 100644
index d1ad70ed72f..00000000000
--- a/tests/lib_2/html/interactive_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library interactive_test;
-
-import 'dart:async';
-import 'dart:html';
-import 'package:expect/minitest.dart';
-import 'utils.dart';
-
-main() {
-  group('KeyEvent', () {
-    keydownHandlerTest(KeyEvent e) {
-      document.body.innerHtml =
-          '${document.body.innerHtml}KeyDOWN: CharCode: ${e.charCode}, KeyCode:'
-          ' ${e.keyCode}<br />';
-      expect(e.charCode, 0);
-    }
-
-    keypressHandlerTest(KeyEvent e) {
-      document.body.innerHtml =
-          '${document.body.innerHtml}KeyPRESS: CharCode: ${e.charCode}, '
-          'KeyCode: ${e.keyCode}<br />';
-    }
-
-    keyupHandlerTest(KeyEvent e) {
-      document.body.innerHtml =
-          '${document.body.innerHtml}KeyUP: CharCode: ${e.charCode}, KeyCode:'
-          ' ${e.keyCode}<br />';
-      expect(e.charCode, 0);
-    }
-
-    keyupHandlerTest2(KeyEvent e) {
-      document.body.innerHtml =
-          '${document.body.innerHtml}A second KeyUP handler: CharCode: '
-          '${e.charCode}, KeyCode: ${e.keyCode}<br />';
-      expect(e.charCode, 0);
-    }
-
-    test('keys', () {
-      document.body.innerHtml =
-          '${document.body.innerHtml}To test keyboard event values, press some '
-          'keys on your keyboard.<br /><br />The charcode for keydown and keyup'
-          ' should be 0, and the keycode should (generally) be populated with a'
-          ' value. Keycode and charcode should both have values for the '
-          'keypress event.';
-      KeyboardEventStream.onKeyDown(document.body).listen(keydownHandlerTest);
-      KeyboardEventStream.onKeyPress(document.body).listen(keypressHandlerTest);
-      KeyboardEventStream.onKeyUp(document.body).listen(keyupHandlerTest);
-      KeyboardEventStream.onKeyUp(document.body).listen(keyupHandlerTest2);
-    });
-  });
-}
diff --git a/tests/lib_2/html/isolates_test.dart b/tests/lib_2/html/isolates_test.dart
deleted file mode 100644
index 0bbaf360d48..00000000000
--- a/tests/lib_2/html/isolates_test.dart
+++ /dev/null
@@ -1,66 +0,0 @@
-
-// @dart = 2.9
-library IsolatesTest;
-
-import 'package:async_helper/async_minitest.dart';
-import 'dart:async';
-import 'dart:html';
-import 'dart:convert';
-import 'dart:isolate' as isolate;
-
-String responseFor(message) => 'response for $message';
-
-void isolateEntry(isolate.SendPort initialReplyTo) {
-  var port = new isolate.ReceivePort();
-  initialReplyTo.send(port.sendPort);
-
-  bool wasThrown = false;
-  try {
-    window.alert('Test');
-  } catch (e) {
-    wasThrown = true;
-  }
-  // If wasn't thrown, do not listen to messages to make test fail.
-  if (!wasThrown) {
-    return;
-  }
-
-  // Check that convert library was loaded to isolate.
-  json.encode([1, 2, 3]);
-
-  port.listen((message) {
-    var data = message[0];
-    var replyTo = message[1];
-    replyTo.send(responseFor(data));
-  });
-}
-
-Future sendReceive(isolate.SendPort port, msg) {
-  var response = new isolate.ReceivePort();
-  port.send([msg, response.sendPort]);
-  return response.first;
-}
-
-main() {
-  test('IsolateSpawn', () {
-    var port = new isolate.ReceivePort();
-    isolate.Isolate.spawn(isolateEntry, port.sendPort);
-    port.close();
-  });
-  test('NonDOMIsolates', () {
-    var callback = expectAsync(() {});
-    var response = new isolate.ReceivePort();
-    var remote = isolate.Isolate.spawn(isolateEntry, response.sendPort);
-    response.first.then((port) {
-      final msg1 = 'foo';
-      final msg2 = 'bar';
-      sendReceive(port, msg1).then((response) {
-        expect(response, equals(responseFor(msg1)));
-        sendReceive(port, msg2).then((response) {
-          expect(response, equals(responseFor(msg2)));
-          callback();
-        });
-      });
-    });
-  });
-}
diff --git a/tests/lib_2/html/js_array_test.dart b/tests/lib_2/html/js_array_test.dart
deleted file mode 100644
index 1ad544a51da..00000000000
--- a/tests/lib_2/html/js_array_test.dart
+++ /dev/null
@@ -1,677 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS("ArrayTest.Util")
-library js_array_test;
-
-import 'dart:html';
-
-import 'dart:js' as js;
-import 'package:js/js.dart';
-import 'package:expect/minitest.dart';
-import 'json_helper.dart' as json_helper;
-
-_injectJs() {
-  document.body.append(new ScriptElement()
-    ..type = 'text/javascript'
-    ..innerHtml = r"""
-ArrayTest = {};
-ArrayTest.Util = {
-  callJsMethod: function(jsObj, jsMethodName, args) {
-    return jsObj[jsMethodName].apply(jsObj, args);
-  },
-
-  jsEnumerateIndices: function(obj) {
-    var ret = [];
-    for(var i in obj) {
-      ret.push(i);
-    }
-    return ret;
-  },
-
-  checkIsArray: function(obj) {
-    return Array.isArray(obj);
-  },
-
-  concatValues: function(obj) {
-    return obj.concat("a", "b", ["c", "d"], 42, {foo: 10});
-  },
-
-  concatOntoArray: function(obj) {
-    return [1,2,3].concat(obj, "foo");
-  },
-
-  repeatedConcatOntoArray: function(obj) {
-    return [1,2,3].concat(obj, obj);
-  },
-
-  everyGreaterThanZero: function(obj) {
-    return obj.every(function(currentValue, index, array) {
-      return currentValue > 0;
-    });
-  },
-
-  everyGreaterThanZeroCheckThisArg: function(obj) {
-    var j = 0;
-    return obj.every(function(currentValue, index, array) {
-      if (j != index) {
-        throw "Unxpected index";
-      }
-      j++;
-      if (array !== obj) {
-        throw "Array argument doesn't match obj";
-      }
-      return currentValue > 0;
-    });
-  },
-
-  filterGreater42: function(obj) {
-    return obj.filter(function(currentValue, index, array) {
-      return currentValue > 42;
-    });
-  },
-
-  forEachCollectResult: function(array) {
-    var result = [];
-    array.forEach(function(currentValue) {
-      result.push(currentValue * 2);
-    });
-    return result;
-  },
-
-  someEqual42: function(array) {
-    return array.some(function(currentValue) {
-      return currentValue == 42;
-    });
-  },
-
-  sortNumbersBackwards: function(array) {
-    return array.sort(function(a, b) {
-      return b - a;
-    });
-  },
-
-  spliceDummyItems: function(array) {
-    return array.splice(1, 2, "quick" ,"brown", "fox");
-  },
-
-  spliceTestStringArgs: function(array) {
-    return array.splice("1.2", "2.01", "quick" ,"brown", "fox");
-  },
-
-  splicePastEnd: function(array) {
-    return array.splice(1, 5332, "quick" ,"brown", "fox");
-  },
-
-  callJsToString: function(array) {
-    return array.toString();
-  },
-
-  mapAddIndexToEachElement: function(array) {
-    return array.map(function(currentValue, index) {
-      return currentValue + index;
-    });
-  },
-
-  reduceSumDoubledElements: function(array) {
-    return array.reduce(function(previousValue, currentValue) {
-          return previousValue + currentValue*2;
-        },
-        0);
-  },
-
-  // TODO(jacobr): add a test that distinguishes reduce from reduceRight.
-  reduceRightSumDoubledElements: function(array) {
-    return array.reduceRight(function(previousValue, currentValue) {
-          return previousValue + currentValue*2;
-        },
-        0);
-  },
-
-  getOwnPropertyDescriptor: function(array, property) {
-    return Object.getOwnPropertyDescriptor(array, property);
-  },
-
-  setLength: function(array, len) {
-    return array.length = len;
-  },
-
-  getValue: function(obj, index) {
-    return obj[index];
-  },
-
-  setValue: function(obj, index, value) {
-    return obj[index] = value;
-  },
-
-  // Calling a method from Dart List on an arbitrary target object.
-  callListMethodOnTarget: function(dartArray, target, methodName, args) {
-    return dartArray[methodName].apply(target, args);
-  },
-
-  newArray: function() { return []; },
-
-  newLiteral: function() { return {}; },
-
-};
-""");
-}
-
-@JS()
-class PropertyDescriptor {
-  external get value;
-  external bool get writable;
-  external bool get enumerable;
-  external bool get configurable;
-}
-
-@JS()
-class SimpleJsLiteralClass {
-  external get foo;
-}
-
-class Foo {}
-
-@JS()
-external callJsMethod(List array, String methodName, List args);
-
-callIndexOf(List array, value) => callJsMethod(array, "indexOf", [value]);
-callLastIndexOf(List array, value) =>
-    callJsMethod(array, "lastIndexOf", [value]);
-
-callPop(List array) => callJsMethod(array, "pop", []);
-callPush(List array, element) => callJsMethod(array, "push", [element]);
-callShift(List array) => callJsMethod(array, "shift", []);
-callReverse(List array) => callJsMethod(array, "reverse", []);
-
-callListMethodOnObject(object, String methodName, List args) =>
-    callListMethodOnTarget([], object, methodName, args);
-
-@JS()
-external jsEnumerateIndices(obj);
-@JS()
-external bool checkIsArray(obj);
-@JS()
-external concatValues(obj);
-
-@JS()
-external concatOntoArray(obj);
-
-@JS()
-external repeatedConcatOntoArray(obj);
-@JS()
-external bool everyGreaterThanZero(obj);
-@JS()
-external bool everyGreaterThanZeroCheckThisArg(obj);
-
-@JS()
-external filterGreater42(obj);
-
-@JS()
-external forEachCollectResult(List array);
-@JS()
-external someEqual42(List array);
-@JS()
-external sortNumbersBackwards(List array);
-
-@JS()
-external List spliceDummyItems(List array);
-
-@JS()
-external List spliceTestStringArgs(List array);
-
-@JS()
-external List splicePastEnd(List array);
-
-@JS()
-external String callJsToString(List array);
-
-@JS()
-external mapAddIndexToEachElement(List array);
-@JS()
-external reduceSumDoubledElements(List array);
-
-// TODO(jacobr): add a test that distinguishes reduce from reduceRight.
-@JS()
-external reduceRightSumDoubledElements(List array);
-
-@JS()
-external PropertyDescriptor getOwnPropertyDescriptor(obj, property);
-
-@JS("setLength")
-external callSetLength(List array, length);
-
-@JS()
-external getValue(obj, index);
-
-@JS()
-external setValue(obj, index, value);
-
-@JS()
-external callListMethodOnTarget(
-    List target, object, String methodName, List args);
-
-@JS()
-external newArray();
-
-@JS()
-external newLiteral();
-
-main() {
-  _injectJs();
-
-  group('indexOf', () {
-    var div = new DivElement();
-    var list = [3, 42, "foo", 42, div];
-    test('found', () {
-      expect(callIndexOf(list, 3), equals(0));
-      expect(callIndexOf(list, 42), equals(1));
-      expect(callIndexOf(list, "foo"), equals(2));
-      expect(callIndexOf(list, div), equals(4));
-    });
-
-    test('missing', () {
-      expect(callIndexOf(list, 31), equals(-1));
-      expect(callIndexOf(list, "42"), equals(-1));
-      expect(callIndexOf(list, null), equals(-1));
-    });
-  });
-
-  group('set length', () {
-    test('larger', () {
-      var list = ["a", "b", "c", "d"];
-      expect(callSetLength(list, 10), equals(10));
-      expect(list.length, equals(10));
-      expect(list.last, equals(null));
-      expect(list[3], equals("d"));
-    });
-
-    test('smaller', () {
-      var list = ["a", "b", "c", "d"];
-      expect(callSetLength(list, 2), equals(2));
-      expect(list.first, equals("a"));
-      expect(list.last, equals("b"));
-      expect(list.length, equals(2));
-      expect(callSetLength(list, 0), equals(0));
-      expect(list.length, equals(0));
-      expect(callSetLength(list, 2), equals(2));
-      expect(list.first, equals(null));
-    });
-
-    test('invalid', () {
-      var list = ["a", "b", "c", "d"];
-      expect(() => callSetLength(list, 2.3), throws);
-      expect(list.length, equals(4));
-      expect(() => callSetLength(list, -1), throws);
-      expect(list.length, equals(4));
-      // Make sure we are coercing to a JS number.
-      expect(callSetLength(list, "2"), equals("2"));
-      expect(list.length, equals(2));
-    });
-  });
-
-  group('join', () {
-    var list = [3, 42, "foo"];
-    var listWithDartClasses = [3, new Foo(), 42, "foo", new Object()];
-    test('default', () {
-      expect(callJsMethod(list, "join", []), equals("3,42,foo"));
-      expect(callJsMethod(listWithDartClasses, "join", []),
-          equals("3,${new Foo()},42,foo,${new Object()}"));
-    });
-
-    test('custom separator', () {
-      expect(callJsMethod(list, "join", ["##"]), equals("3##42##foo"));
-    });
-  });
-
-  group('lastIndexOf', () {
-    var list = [3, 42, "foo", 42];
-    test('found', () {
-      expect(callLastIndexOf(list, 3), equals(0));
-      expect(callLastIndexOf(list, 42), equals(3));
-      expect(callLastIndexOf(list, "foo"), equals(2));
-    });
-
-    test('missing', () {
-      expect(callLastIndexOf(list, 31), equals(-1));
-      expect(callLastIndexOf(list, "42"), equals(-1));
-      expect(callLastIndexOf(list, null), equals(-1));
-    });
-  });
-
-  group('pop', () {
-    test('all', () {
-      var foo = new Foo();
-      var div = new DivElement();
-      var list = [3, 42, "foo", foo, div];
-      expect(callPop(list), equals(div));
-      expect(list.length, equals(4));
-      expect(callPop(list), equals(foo));
-      expect(list.length, equals(3));
-      expect(callPop(list), equals("foo"));
-      expect(list.length, equals(2));
-      expect(callPop(list), equals(42));
-      expect(list.length, equals(1));
-      expect(callPop(list), equals(3));
-      expect(list.length, equals(0));
-      expect(callPop(list), equals(null));
-      expect(list.length, equals(0));
-    });
-  });
-
-  group('push', () {
-    test('strings', () {
-      var list = [];
-      var div = new DivElement();
-      expect(callPush(list, "foo"), equals(1));
-      expect(callPush(list, "bar"), equals(2));
-      // Calling push with 0 elements should do nothing.
-      expect(callJsMethod(list, "push", []), equals(2));
-      expect(callPush(list, "baz"), equals(3));
-      expect(callPush(list, div), equals(4));
-      expect(callJsMethod(list, "push", ["a", "b"]), equals(6));
-      expect(list, equals(["foo", "bar", "baz", div, "a", "b"]));
-    });
-  });
-
-  group('shift', () {
-    test('all', () {
-      var foo = new Foo();
-      var div = new DivElement();
-      var list = [3, 42, "foo", foo, div];
-      expect(callShift(list), equals(3));
-      expect(list.length, equals(4));
-      expect(callShift(list), equals(42));
-      expect(list.length, equals(3));
-      expect(callShift(list), equals("foo"));
-      expect(list.length, equals(2));
-      expect(callShift(list), equals(foo));
-      expect(list.length, equals(1));
-      expect(callShift(list), equals(div));
-      expect(list.length, equals(0));
-      expect(callShift(list), equals(null));
-      expect(list.length, equals(0));
-    });
-  });
-
-  group('reverse', () {
-    test('simple', () {
-      var foo = new Foo();
-      var div = new DivElement();
-      var list = [div, 42, foo];
-      callReverse(list);
-      expect(list, equals([foo, 42, div]));
-      list = [3, 42];
-      callReverse(list);
-      expect(list, equals([42, 3]));
-    });
-  });
-
-  group('slice', () {
-    test('copy', () {
-      var foo = new Foo();
-      var div = new DivElement();
-      var list = [3, 42, "foo", foo, div];
-      var copy = callJsMethod(list, "slice", []);
-      expect(identical(list, copy), isFalse);
-      expect(copy.length, equals(list.length));
-      for (var i = 0; i < list.length; i++) {
-        expect(list[i], equals(copy[i]));
-      }
-      expect(identical(list[3], copy[3]), isTrue);
-      expect(identical(list[4], copy[4]), isTrue);
-
-      copy.add("dummy");
-      expect(list.length + 1, equals(copy.length));
-    });
-
-    test('specify start', () {
-      var list = [3, 42, "foo"];
-      var copy = callJsMethod(list, "slice", [1]);
-      expect(copy.first, equals(42));
-    });
-
-    test('specify start and end', () {
-      var list = [3, 42, 92, "foo"];
-      var copy = callJsMethod(list, "slice", [1, 3]);
-      expect(copy.first, equals(42));
-      expect(copy.last, equals(92));
-    });
-
-    test('from end', () {
-      var list = [3, 42, 92, "foo"];
-      expect(callJsMethod(list, "slice", [-2]), equals([92, "foo"]));
-
-      // Past the end of the front of the array.
-      expect(callJsMethod(list, "slice", [-2, 3]), equals([92]));
-
-      // Past the end of the front of the array.
-      expect(callJsMethod(list, "slice", [-10, 2]), equals([3, 42]));
-    });
-  });
-
-  group("js snippet tests", () {
-    test("enumerate indices", () {
-      var list = ["a", "b", "c", "d"];
-      var indices = jsEnumerateIndices(list);
-      expect(indices.length, equals(4));
-      for (int i = 0; i < 4; i++) {
-        expect(indices[i], equals('$i'));
-      }
-    });
-
-    test("set element", () {
-      var list = ["a", "b", "c", "d"];
-      setValue(list, 0, 42);
-      expect(list[0], equals(42));
-      setValue(list, 1, 84);
-      expect(list[1], equals(84));
-      setValue(list, 6, 100); // Off the end of the list.
-      expect(list.length, equals(7));
-      expect(list[4], equals(null));
-      expect(list[6], equals(100));
-
-      // These tests have to be commented out because we don't persist
-      // JS proxies for Dart objects like we could/should.
-      // setValue(list, -1, "foo"); // Not a valid array index
-      // expect(getValue(list, -1), equals("foo"));
-      // expect(getValue(list, "-1"), equals("foo"));
-    });
-
-    test("get element", () {
-      var list = ["a", "b", "c", "d"];
-      expect(getValue(list, 0), equals("a"));
-      expect(getValue(list, 1), equals("b"));
-      expect(getValue(list, 6), equals(null));
-      expect(getValue(list, -1), equals(null));
-
-      expect(getValue(list, "0"), equals("a"));
-      expect(getValue(list, "1"), equals("b"));
-    });
-
-    test("is array", () {
-      var list = ["a", "b"];
-      expect(checkIsArray(list), isTrue);
-    });
-
-    test("property descriptors", () {
-      // This test matters to make behavior consistent with JS native arrays
-      // and to make devtools integration work well.
-      var list = ["a", "b"];
-      var descriptor = getOwnPropertyDescriptor(list, 0);
-
-      expect(descriptor.value, equals("a"));
-      expect(descriptor.writable, isTrue);
-      // TODO(jacobr): commented out until https://github.com/dart-lang/sdk/issues/26128
-      // is fixed.
-      // expect(descriptor.enumerable, isTrue);
-      // expect(descriptor.configurable, isTrue);
-
-      descriptor = getOwnPropertyDescriptor(list, "length");
-      expect(descriptor.value, equals(2));
-      expect(descriptor.writable, isTrue);
-      expect(descriptor.enumerable, isFalse);
-      expect(descriptor.configurable, isFalse);
-    });
-
-    test("concat js arrays", () {
-      var list = ["1", "2"];
-      // Tests that calling the concat method from JS will flatten out JS arrays
-      // We concat the array with "a", "b", ["c", "d"], 42, {foo: 10}
-      // which should generate ["1", "2", "a", "b", ["c", "d"], 42, {foo: 10}]
-      var ret = concatValues(list);
-      expect(list.length, equals(2));
-      expect(ret.length, equals(8));
-      expect(ret[0], equals("1"));
-      expect(ret[3], equals("b"));
-      expect(ret[5], equals("d"));
-      expect(ret[6], equals(42));
-      dynamic item = ret[7];
-      expect(item.foo, equals(10));
-    });
-
-    test("concat onto arrays", () {
-      // This test only passes if we have monkey patched the core Array object
-      // prototype to handle Dart Lists.
-      var list = ["a", "b"];
-      var ret = concatOntoArray(list);
-      expect(list.length, equals(2));
-      expect(ret, equals([1, 2, 3, "a", "b", "foo"]));
-    });
-
-    test("dart arrays on dart arrays", () {
-      // This test only passes if we have monkey patched the core Array object
-      // prototype to handle Dart Lists.
-      var list = ["a", "b"];
-      var ret = callJsMethod(list, "concat", [
-        ["c", "d"],
-        "e",
-        ["f", "g"]
-      ]);
-      expect(list.length, equals(2));
-      expect(ret, equals(["a", "b", "c", "d", "e", "f", "g"]));
-    });
-
-    test("every greater than zero", () {
-      expect(everyGreaterThanZero([1, 5]), isTrue);
-      expect(everyGreaterThanZeroCheckThisArg([1, 5]), isTrue);
-      expect(everyGreaterThanZero([1, 0]), isFalse);
-      expect(everyGreaterThanZero([]), isTrue);
-    });
-
-    test("filter greater than 42", () {
-      expect(filterGreater42([1, 5]), equals([]));
-      expect(filterGreater42([43, 5, 49]), equals([43, 49]));
-      expect(filterGreater42(["43", "5", "49"]), equals(["43", "49"]));
-    });
-
-    test("for each collect result", () {
-      expect(forEachCollectResult([1, 5, 7]), equals([2, 10, 14]));
-    });
-
-    test("some", () {
-      expect(someEqual42([1, 5, 9]), isFalse);
-      expect(someEqual42([1, 42, 9]), isTrue);
-    });
-
-    test("sort backwards", () {
-      var arr = [1, 5, 9];
-      var ret = sortNumbersBackwards(arr);
-      expect(identical(arr, ret), isTrue);
-      expect(ret, equals([9, 5, 1]));
-    });
-
-    test("splice dummy items", () {
-      var list = [1, 2, 3, 4];
-      var removed = spliceDummyItems(list);
-      expect(removed.length, equals(2));
-      expect(removed[0], equals(2));
-      expect(removed[1], equals(3));
-      expect(list.first, equals(1));
-      expect(list[1], equals("quick"));
-      expect(list[2], equals("brown"));
-      expect(list[3], equals("fox"));
-      expect(list.last, equals(4));
-    });
-
-    test("splice string args", () {
-      var list = [1, 2, 3, 4];
-      var removed = spliceTestStringArgs(list);
-      expect(removed.length, equals(2));
-      expect(removed[0], equals(2));
-      expect(removed[1], equals(3));
-      expect(list.first, equals(1));
-      expect(list[1], equals("quick"));
-      expect(list[2], equals("brown"));
-      expect(list[3], equals("fox"));
-      expect(list.last, equals(4));
-    });
-
-    test("splice pastEndOfArray", () {
-      var list = [1, 2, 3, 4];
-      var removed = splicePastEnd(list);
-      expect(removed.length, equals(3));
-      expect(list.first, equals(1));
-      expect(list.length, equals(4));
-      expect(list[1], equals("quick"));
-      expect(list[2], equals("brown"));
-      expect(list[3], equals("fox"));
-    });
-
-    test("splice both bounds past end of array", () {
-      var list = [1];
-      var removed = splicePastEnd(list);
-      expect(removed.length, equals(0));
-      expect(list.first, equals(1));
-      expect(list.length, equals(4));
-      expect(list[1], equals("quick"));
-      expect(list[2], equals("brown"));
-      expect(list[3], equals("fox"));
-    });
-
-    test("call List method on JavaScript object", () {
-      var jsObject = newLiteral();
-      callListMethodOnObject(jsObject, 'push', ["a"]);
-      callListMethodOnObject(jsObject, 'push', ["b"]);
-      callListMethodOnObject(jsObject, 'push', ["c", "d"]);
-      callListMethodOnObject(jsObject, 'push', []);
-
-      expect(json_helper.stringify(jsObject),
-          equals('{"0":"a","1":"b","2":"c","3":"d","length":4}'));
-
-      expect(callListMethodOnObject(jsObject, 'pop', []), equals("d"));
-      expect(callListMethodOnObject(jsObject, 'join', ["#"]), equals("a#b#c"));
-
-      var jsArray = newArray();
-      callListMethodOnObject(jsArray, 'push', ["a"]);
-      callListMethodOnObject(jsArray, 'push', ["b"]);
-      callListMethodOnObject(jsArray, 'push', ["c", "d"]);
-      callListMethodOnObject(jsArray, 'push', []);
-
-      expect(json_helper.stringify(jsArray), equals('["a","b","c","d"]'));
-    });
-  });
-
-  // This test group is disabled until we figure out an efficient way to
-  // distinguish between "array" Dart List types and non-array Dart list types.
-  /*
-  group('Non-array Lists', () {
-    test('opaque proxy', () {
-      // Dartium could easily support making LinkedList and all other classes
-      // implementing List behave like a JavaScript array but that would
-      // be challenging to implement in dart2js until browsers support ES6.
-      var list = ["a", "b", "c", "d"];
-      var listView = new UnmodifiableListView(list.getRange(1,3));
-      expect(listView is List, isTrue);
-      expect(listView.length, equals(2));
-      expect(checkIsArray(listView), isFalse);
-      expect(checkIsArray(listView.toList()), isTrue);
-      expect(getOwnPropertyDescriptor(
-          listView, "length"), equals(null));
-    });
-  });
-  */
-}
diff --git a/tests/lib_2/html/js_browser_test.dart b/tests/lib_2/html/js_browser_test.dart
deleted file mode 100644
index a5996aa9caf..00000000000
--- a/tests/lib_2/html/js_browser_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:indexed_db' show IdbFactory, KeyRange;
-import 'dart:typed_data' show Int32List;
-import 'dart:js';
-
-import 'package:js/js_util.dart' as js_util;
-import 'package:expect/minitest.dart';
-
-import 'js_test_util.dart';
-
-main() {
-  injectJs();
-
-  test('Nodes are proxied', () {
-    var node = new JsObject.fromBrowserObject(new DivElement());
-    context.callMethod('addTestProperty', [node]);
-    expect(node is JsObject, isTrue);
-    // TODO(justinfagnani): make this work in IE9
-    // expect(node.instanceof(context['HTMLDivElement']), isTrue);
-    expect(node['testProperty'], 'test');
-  });
-
-  test('primitives and null throw ArgumentError', () {
-    for (var v in ['a', 1, 2.0, true, null]) {
-      expect(() => new JsObject.fromBrowserObject(v), throwsArgumentError);
-    }
-  });
-}
diff --git a/tests/lib_2/html/js_caching_test.dart b/tests/lib_2/html/js_caching_test.dart
deleted file mode 100644
index 677b8097314..00000000000
--- a/tests/lib_2/html/js_caching_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:indexed_db' show IdbFactory, KeyRange;
-import 'dart:typed_data' show Int32List;
-import 'dart:js';
-
-import 'package:js/js_util.dart' as js_util;
-import 'package:expect/minitest.dart';
-
-import 'js_test_util.dart';
-
-main() {
-  injectJs();
-
-  test('JS->Dart', () {
-    // Test that we are not pulling cached proxy from the prototype
-    // when asking for a proxy for the object.
-    final proto = context['someProto'];
-    expect(proto['role'], equals('proto'));
-    final obj = context['someObject'];
-    expect(obj['role'], equals('object'));
-  });
-}
diff --git a/tests/lib_2/html/js_context_test.dart b/tests/lib_2/html/js_context_test.dart
deleted file mode 100644
index 9c875d705df..00000000000
--- a/tests/lib_2/html/js_context_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:indexed_db' show IdbFactory, KeyRange;
-import 'dart:typed_data' show Int32List;
-import 'dart:js';
-
-import 'package:js/js_util.dart' as js_util;
-import 'package:expect/minitest.dart';
-
-import 'js_test_util.dart';
-
-main() {
-  injectJs();
-
-  test('read global field', () {
-    expect(context['x'], equals(42));
-    expect(context['y'], isNull);
-  });
-
-  test('read global field with underscore', () {
-    expect(context['_x'], equals(123));
-    expect(context['y'], isNull);
-  });
-
-  test('write global field', () {
-    context['y'] = 42;
-    expect(context['y'], equals(42));
-  });
-}
diff --git a/tests/lib_2/html/js_dart_functions_test.dart b/tests/lib_2/html/js_dart_functions_test.dart
deleted file mode 100644
index 33fa0e6b440..00000000000
--- a/tests/lib_2/html/js_dart_functions_test.dart
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:indexed_db' show IdbFactory, KeyRange;
-import 'dart:typed_data' show Int32List;
-import 'dart:js';
-
-import 'package:js/js_util.dart' as js_util;
-import 'package:expect/minitest.dart';
-
-import 'js_test_util.dart';
-
-main() {
-  injectJs();
-
-  test('invoke Dart callback from JS', () {
-    expect(() => context.callMethod('invokeCallback'), throws);
-
-    context['callback'] = () => 42;
-    expect(context.callMethod('invokeCallback'), equals(42));
-
-    context.deleteProperty('callback');
-  });
-
-  test('pass a Dart function to JS and back', () {
-    var dartFunction = () => 42;
-    context['dartFunction'] = dartFunction;
-    expect(identical(context['dartFunction'], dartFunction), isTrue);
-    context.deleteProperty('dartFunction');
-  });
-
-  test('callback as parameter', () {
-    expect(context.callMethod('getTypeOf', [context['razzle']]),
-        equals("function"));
-  });
-
-  test('invoke Dart callback from JS with this', () {
-    // A JavaScript constructor function implemented in Dart which
-    // uses 'this'
-    final constructor = new JsFunction.withThis(($this, arg1) {
-      var t = $this;
-      $this['a'] = 42;
-    });
-    var o = new JsObject(constructor, ["b"]);
-    expect(o['a'], equals(42));
-  });
-
-  test('invoke Dart callback from JS with 11 parameters', () {
-    context['callbackWith11params'] =
-        (p1, p2, p3, p4, p5, p6, p7, p8, p9, p10, p11) =>
-            '$p1$p2$p3$p4$p5$p6$p7$p8$p9$p10$p11';
-    expect(context.callMethod('invokeCallbackWith11params'),
-        equals('1234567891011'));
-  });
-
-  test('return a JS proxy to JavaScript', () {
-    var result = context.callMethod('testJsMap', [
-      () => new JsObject.jsify({'value': 42})
-    ]);
-    expect(result, 42);
-  });
-
-  test('emulated functions should not be callable in JS', () {
-    context['callable'] = new Callable();
-    expect(() => context.callMethod('callable'), throwsNoSuchMethodError);
-
-    Function f = new Callable();
-    context['callable'] = f;
-    expect(context.callMethod('callable'), 'called');
-    context.deleteProperty('callable');
-  });
-}
diff --git a/tests/lib_2/html/js_dart_js_test.dart b/tests/lib_2/html/js_dart_js_test.dart
deleted file mode 100644
index c3723ab317f..00000000000
--- a/tests/lib_2/html/js_dart_js_test.dart
+++ /dev/null
@@ -1,100 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:indexed_db' show IdbFactory, KeyRange;
-import 'dart:typed_data' show Int32List;
-import 'dart:js';
-
-import 'package:js/js_util.dart' as js_util;
-import 'package:expect/minitest.dart';
-
-import 'js_test_util.dart';
-
-main() {
-  injectJs();
-
-  test('Date', () {
-    context['o'] = new DateTime(1995, 12, 17);
-    var dateType = context['Date'];
-    expect(context.callMethod('isPropertyInstanceOf', ['o', dateType]), isTrue);
-    context.deleteProperty('o');
-  });
-
-  skipIE9_test('window', () {
-    context['o'] = window;
-    var windowType = context['Window'];
-    expect(
-        context.callMethod('isPropertyInstanceOf', ['o', windowType]), isTrue);
-    context.deleteProperty('o');
-  });
-
-  skipIE9_test('document', () {
-    context['o'] = document;
-    var documentType = context['Document'];
-    expect(context.callMethod('isPropertyInstanceOf', ['o', documentType]),
-        isTrue);
-    context.deleteProperty('o');
-  });
-
-  skipIE9_test('Blob', () {
-    var fileParts = ['<a id="a"><b id="b">hey!</b></a>'];
-    context['o'] = new Blob(fileParts, 'text/html');
-    var blobType = context['Blob'];
-    expect(context.callMethod('isPropertyInstanceOf', ['o', blobType]), isTrue);
-    context.deleteProperty('o');
-  });
-
-  test('unattached DivElement', () {
-    context['o'] = new DivElement();
-    var divType = context['HTMLDivElement'];
-    expect(context.callMethod('isPropertyInstanceOf', ['o', divType]), isTrue);
-    context.deleteProperty('o');
-  });
-
-  test('Event', () {
-    context['o'] = new CustomEvent('test');
-    var eventType = context['Event'];
-    expect(
-        context.callMethod('isPropertyInstanceOf', ['o', eventType]), isTrue);
-    context.deleteProperty('o');
-  });
-
-  test('KeyRange', () {
-    if (IdbFactory.supported) {
-      context['o'] = new KeyRange.only(1);
-      var keyRangeType = context['IDBKeyRange'];
-      expect(context.callMethod('isPropertyInstanceOf', ['o', keyRangeType]),
-          isTrue);
-      context.deleteProperty('o');
-    }
-  });
-
-  // this test fails in IE9 for very weird, but unknown, reasons
-  // the expression context['ImageData'] fails if useHtmlConfiguration()
-  // is called, or if the other tests in this file are enabled
-  skipIE9_test('ImageData', () {
-    var canvas = new CanvasElement();
-    var ctx = canvas.getContext('2d') as CanvasRenderingContext2D;
-    context['o'] = ctx.createImageData(1, 1);
-    var imageDataType = context['ImageData'];
-    expect(context.callMethod('isPropertyInstanceOf', ['o', imageDataType]),
-        isTrue);
-    context.deleteProperty('o');
-  });
-
-  test('typed data: Int32List', () {
-    if (Platform.supportsTypedData) {
-      context['o'] = new Int32List.fromList([1, 2, 3, 4]);
-      var listType = context['Int32Array'];
-      // TODO(jacobr): make this test pass. Currently some type information
-      // is lost when typed arrays are passed between JS and Dart.
-      // expect(context.callMethod('isPropertyInstanceOf', ['o', listType]),
-      //    isTrue);
-      context.deleteProperty('o');
-    }
-  });
-}
diff --git a/tests/lib_2/html/js_dart_to_string_test.dart b/tests/lib_2/html/js_dart_to_string_test.dart
deleted file mode 100644
index 0a3be04a0d2..00000000000
--- a/tests/lib_2/html/js_dart_to_string_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS()
-library js_dart_to_string_test;
-
-import 'dart:html';
-
-import 'package:js/js.dart';
-import 'package:expect/minitest.dart';
-
-_injectJs() {
-  document.body.append(new ScriptElement()
-    ..type = 'text/javascript'
-    ..innerHtml = r"""
-
-  function jsToStringViaCoercion(a) {
-    return a + '';
-  };
-""");
-}
-
-@JS()
-external String jsToStringViaCoercion(obj);
-
-class ExampleClassWithCustomToString {
-  var x;
-  ExampleClassWithCustomToString(this.x);
-  String toString() => "#$x#";
-}
-
-main() {
-  _injectJs();
-
-  group('toString', () {
-    test('custom dart', () {
-      var x = new ExampleClassWithCustomToString("fooBar");
-      expect(jsToStringViaCoercion(x), equals("#fooBar#"));
-      expect(jsToStringViaCoercion({'a': 1, 'b': 2}), equals("{a: 1, b: 2}"));
-    });
-  });
-}
diff --git a/tests/lib_2/html/js_dispatch_property_test.dart b/tests/lib_2/html/js_dispatch_property_test.dart
deleted file mode 100644
index 866b7e69444..00000000000
--- a/tests/lib_2/html/js_dispatch_property_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test for dart2js initialization of dispatchPropertyName.
-
-import 'package:expect/minitest.dart';
-
-import 'js_dispatch_property_test_lib.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-main() {
-  group('group', () {
-    test('test', () {
-      // Force dynamic interceptor dispatch.
-      var a = confuse(create());
-      expect(a.foo('A'), equals('Foo A'));
-    });
-  });
-}
diff --git a/tests/lib_2/html/js_dispatch_property_test.html b/tests/lib_2/html/js_dispatch_property_test.html
deleted file mode 100644
index 630ed9507c6..00000000000
--- a/tests/lib_2/html/js_dispatch_property_test.html
+++ /dev/null
@@ -1,27 +0,0 @@
-<!DOCTYPE html>
-<--
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
--->
-<html>
-<head>
-  <meta http-equiv="X-UA-Compatible" content="IE=edge">
-  <meta name="dart.unittest" content="full-stack-traces">
-  <title> js_type_test </title>
-  <style>
-     .unittest-table { font-family:monospace; border:1px; }
-     .unittest-pass { background: #6b3;}
-     .unittest-fail { background: #d55;}
-     .unittest-error { background: #a11;}
-  </style>
-</head>
-<body>
-  <h1> Running js_type_test </h1>
-  <script type="text/javascript"
-      src="/root_dart/tests/lib_2/html/js_dispatch_property_test_js.js"></script>
-  <script type="text/javascript"
-      src="/root_dart/pkg/test_runner/lib/src/test_controller.js"></script>
-  %TEST_SCRIPTS%
-</body>
-</html>
diff --git a/tests/lib_2/html/js_dispatch_property_test_js.js b/tests/lib_2/html/js_dispatch_property_test_js.js
deleted file mode 100644
index 0b159d668b0..00000000000
--- a/tests/lib_2/html/js_dispatch_property_test_js.js
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-self.create = function() {
-  return {
-    // If the dispatch property name is uninitialized, it will be `undefined` or
-    // `null`, which will match these properties on dispatch record
-    // lookup. These properties map to malformed dispatch records to force an
-    // error.
-
-    'undefined': {p: false},
-    'null': {p: false},
-
-    foo: function(x) { return 'Foo ' + x; },
-  };
-}
\ No newline at end of file
diff --git a/tests/lib_2/html/js_dispatch_property_test_lib.dart b/tests/lib_2/html/js_dispatch_property_test_lib.dart
deleted file mode 100644
index 6f32c2d5a11..00000000000
--- a/tests/lib_2/html/js_dispatch_property_test_lib.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS()
-library js_dispatch_property_test_lib;
-
-import 'package:js/js.dart';
-
-@JS()
-external A create();
-
-@JS()
-@anonymous
-class A {
-  external String foo(String x);
-}
diff --git a/tests/lib_2/html/js_function_getter_test.dart b/tests/lib_2/html/js_function_getter_test.dart
deleted file mode 100644
index 1e3f63bb30a..00000000000
--- a/tests/lib_2/html/js_function_getter_test.dart
+++ /dev/null
@@ -1,107 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS()
-library js_function_getter_test;
-
-import 'dart:html';
-
-import 'package:js/js.dart';
-import 'package:expect/minitest.dart';
-
-_injectJs() {
-  document.body.append(new ScriptElement()
-    ..type = 'text/javascript'
-    ..innerHtml = r"""
-  var bar = { };
-
-  bar.instanceMember = function() {
-    if (this !== bar) {
-      throw 'Unexpected this!';
-    }
-    return arguments.length;
-  };
-
-  bar.staticMember = function() {
-    return arguments.length * 2;
-  };
-
-  bar.dynamicStatic = function() {
-    return arguments.length;
-  };
-
-  bar.add = function(a, b) {
-    return a + b;
-  };
-
-  var foo = { 'bar' : bar };
-""");
-}
-
-typedef int AddFn(int x, int y);
-
-@JS()
-abstract class Bar {
-  external Function get staticMember;
-  external Function get instanceMember;
-  external AddFn get add;
-  external get dynamicStatic;
-  external num get nonFunctionStatic;
-}
-
-@JS()
-abstract class Foo {
-  external Bar get bar;
-}
-
-@JS()
-external Foo get foo;
-
-main() {
-  _injectJs();
-
-  group('call getter as function', () {
-    test('member function', () {
-      expect(foo.bar.instanceMember(), equals(0));
-      expect(foo.bar.instanceMember(0), equals(1));
-      expect(foo.bar.instanceMember(0, 0), equals(2));
-      expect(foo.bar.instanceMember(0, 0, 0, 0, 0, 0), equals(6));
-      var instanceMember = foo.bar.instanceMember;
-      expect(() => instanceMember(), throws);
-      expect(() => instanceMember(0), throws);
-      expect(() => instanceMember(0, 0), throws);
-      expect(() => instanceMember(0, 0, 0, 0, 0, 0), throws);
-    });
-
-    test('static function', () {
-      expect(foo.bar.staticMember(), equals(0));
-      expect(foo.bar.staticMember(0), equals(2));
-      expect(foo.bar.staticMember(0, 0), equals(4));
-      expect(foo.bar.staticMember(0, 0, 0, 0, 0, 0), equals(12));
-      var staticMember = foo.bar.staticMember;
-      expect(staticMember(), equals(0));
-      expect(staticMember(0), equals(2));
-      expect(staticMember(0, 0), equals(4));
-      expect(staticMember(0, 0, 0, 0, 0, 0), equals(12));
-    });
-
-    test('static dynamicStatic', () {
-      expect(foo.bar.dynamicStatic(), equals(0));
-      expect(foo.bar.dynamicStatic(0), equals(1));
-      expect(foo.bar.dynamicStatic(0, 0), equals(2));
-      expect(foo.bar.dynamicStatic(0, 0, 0, 0, 0, 0), equals(6));
-      var dynamicStatic = foo.bar.dynamicStatic;
-      expect(dynamicStatic(), equals(0));
-      expect(dynamicStatic(0), equals(1));
-      expect(dynamicStatic(0, 0), equals(2));
-      expect(dynamicStatic(0, 0, 0, 0, 0, 0), equals(6));
-    });
-
-    test('typedef function', () {
-      expect(foo.bar.add(4, 5), equals(9));
-    });
-  });
-}
diff --git a/tests/lib_2/html/js_function_getter_trust_types/compile_test.dart b/tests/lib_2/html/js_function_getter_trust_types/compile_test.dart
deleted file mode 100644
index 24980285183..00000000000
--- a/tests/lib_2/html/js_function_getter_trust_types/compile_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// SharedOptions=--trust-type-annotations
-@JS()
-library js_function_getter_trust_types_test;
-
-import 'package:js/js.dart';
-import 'package:expect/expect.dart';
-
-import 'js_function_util.dart';
-
-main() {
-  injectJs();
-
-  foo.bar.nonFunctionStatic();
-//        ^
-// [cfe] Error: 'nonFunctionStatic' isn't a function or method and can't be invoked.
-//^^^^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVOCATION_OF_NON_FUNCTION_EXPRESSION
-
-  foo.bar.nonFunctionStatic(0);
-//        ^
-// [cfe] Error: 'nonFunctionStatic' isn't a function or method and can't be invoked.
-//^^^^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVOCATION_OF_NON_FUNCTION_EXPRESSION
-
-  foo.bar.nonFunctionStatic(0, 0);
-//        ^
-// [cfe] Error: 'nonFunctionStatic' isn't a function or method and can't be invoked.
-//^^^^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVOCATION_OF_NON_FUNCTION_EXPRESSION
-
-  foo.bar.nonFunctionStatic(0, 0, 0, 0, 0, 0);
-//        ^
-// [cfe] Error: 'nonFunctionStatic' isn't a function or method and can't be invoked.
-//^^^^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.INVOCATION_OF_NON_FUNCTION_EXPRESSION
-
-  foo.bar.add(4);
-  //         ^
-  // [cfe] Error: Too few positional arguments: 2 required, 1 given.
-  //           ^
-  // [analyzer] COMPILE_TIME_ERROR.NOT_ENOUGH_POSITIONAL_ARGUMENTS
-
-  foo.bar.add(4, 5, 10);
-  //         ^
-  // [cfe] Error: Too many positional arguments: 2 allowed, but 3 found.
-  //                ^^
-  // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS
-}
diff --git a/tests/lib_2/html/js_function_getter_trust_types/function_test.dart b/tests/lib_2/html/js_function_getter_trust_types/function_test.dart
deleted file mode 100644
index b184c53dc6e..00000000000
--- a/tests/lib_2/html/js_function_getter_trust_types/function_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// SharedOptions=--trust-type-annotations
-@JS()
-library js_function_getter_trust_types_test;
-
-import 'package:js/js.dart';
-import 'package:expect/expect.dart';
-
-import 'js_function_util.dart';
-
-main() {
-  injectJs();
-
-  Expect.equals(foo.bar.add(4, 5), 9);
-}
diff --git a/tests/lib_2/html/js_function_getter_trust_types/js_function_util.dart b/tests/lib_2/html/js_function_getter_trust_types/js_function_util.dart
deleted file mode 100644
index f1ccd0dc21f..00000000000
--- a/tests/lib_2/html/js_function_getter_trust_types/js_function_util.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// SharedOptions=--trust-type-annotations
-@JS()
-library js_function_getter_trust_types_test;
-
-import 'dart:html';
-
-import 'package:js/js.dart';
-
-injectJs() {
-  document.body.append(new ScriptElement()
-    ..type = 'text/javascript'
-    ..innerHtml = r"""
-  var bar = { };
-
-  bar.nonFunctionStatic = function() {
-    return arguments.length * 2;
-  };
-
-  bar.add = function(a, b) {
-    return a + b;
-  };
-
-  var foo = { 'bar' : bar };
-""");
-}
-
-typedef int AddFn(int x, int y);
-
-@JS()
-class NotAFn {}
-
-@JS()
-abstract class Bar {
-  external AddFn get add;
-  external NotAFn get nonFunctionStatic;
-}
-
-@JS()
-abstract class Foo {
-  external Bar get bar;
-}
-
-@JS()
-external Foo get foo;
diff --git a/tests/lib_2/html/js_identity_test.dart b/tests/lib_2/html/js_identity_test.dart
deleted file mode 100644
index 0860f643256..00000000000
--- a/tests/lib_2/html/js_identity_test.dart
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:indexed_db' show IdbFactory, KeyRange;
-import 'dart:typed_data' show Int32List;
-import 'dart:js';
-
-import 'package:js/js_util.dart' as js_util;
-import 'package:expect/minitest.dart';
-
-import 'js_test_util.dart';
-
-main() {
-  injectJs();
-
-  test('context instances should be identical', () {
-    var c1 = context;
-    var c2 = context;
-    expect(identical(c1, c2), isTrue);
-  });
-
-  test('identical JS objects should have identical proxies', () {
-    var o1 = new JsObject(context['Foo'], [1]);
-    context['f1'] = o1;
-    var o2 = context['f1'];
-    expect(identical(o1, o2), isTrue);
-  });
-
-  test('identical Dart functions should have identical proxies', () {
-    var f1 = allowInterop(() => print("I'm a Function!"));
-    expect(context.callMethod('identical', [f1, f1]), isTrue);
-  });
-
-  test('identical JS functions should have identical proxies', () {
-    var f1 = context['Object'];
-    var f2 = context['Object'];
-    expect(identical(f1, f2), isTrue);
-  });
-
-  // TODO(justinfagnani): old tests duplicate checks above, remove
-  // on test next cleanup pass
-  test('test proxy equality', () {
-    var foo1 = new JsObject(context['Foo'], [1]);
-    var foo2 = new JsObject(context['Foo'], [2]);
-    context['foo1'] = foo1;
-    context['foo2'] = foo2;
-    expect(foo1, notEquals(context['foo2']));
-    expect(foo2, equals(context['foo2']));
-    context.deleteProperty('foo1');
-    context.deleteProperty('foo2');
-  });
-
-  test('retrieve same dart Object', () {
-    final obj = new Object();
-    context['obj'] = obj;
-    expect(context['obj'], same(obj));
-    context.deleteProperty('obj');
-  });
-}
diff --git a/tests/lib_2/html/js_interop_1_test.dart b/tests/lib_2/html/js_interop_1_test.dart
deleted file mode 100644
index 6057d8049c7..00000000000
--- a/tests/lib_2/html/js_interop_1_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file
-
-// @dart = 2.9
-
-library JsInterop1Test;
-
-import 'package:async_helper/async_helper.dart';
-import 'dart:async';
-import 'dart:html';
-
-injectSource(code) {
-  final script = new ScriptElement();
-  script.type = 'text/javascript';
-  script.innerHtml = code;
-  document.body.append(script);
-}
-
-main() {
-  asyncTest(() async {
-    var subscription;
-    var completer = Completer<void>();
-    subscription = window.onMessage.listen((e) {
-      if (!completer.isCompleted && e.data == 'hello') {
-        completer.complete();
-        subscription.cancel();
-      }
-    });
-    injectSource("window.postMessage('hello', '*');");
-
-    await completer.future;
-  });
-}
diff --git a/tests/lib_2/html/js_interop_constructor_name/div_test.dart b/tests/lib_2/html/js_interop_constructor_name/div_test.dart
deleted file mode 100644
index deff18af7e1..00000000000
--- a/tests/lib_2/html/js_interop_constructor_name/div_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html' as html;
-
-import 'package:expect/minitest.dart';
-
-import 'util.dart';
-
-main() {
-  setUpJS();
-  test('dom-is-dom', () {
-    var e = confuse(new html.DivElement());
-    expect(e is html.DivElement, isTrue);
-  });
-
-  test('js-is-dom', () {
-    var e = confuse(makeDiv('hello'));
-    expect(e is html.DivElement, isFalse);
-  });
-
-  test('js-is-js', () {
-    var e = confuse(makeDiv('hello'));
-    expect(e is HTMLDivElement, isTrue);
-  });
-}
diff --git a/tests/lib_2/html/js_interop_constructor_name/error1_test.dart b/tests/lib_2/html/js_interop_constructor_name/error1_test.dart
deleted file mode 100644
index 19f516c2048..00000000000
--- a/tests/lib_2/html/js_interop_constructor_name/error1_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html' as html;
-
-import 'package:expect/minitest.dart';
-
-import 'util.dart';
-
-main() {
-  setUpJS();
-  test('dom-is-js', () {
-    var e = confuse(new html.DivElement());
-    // Currently, HTML types are not `LegacyJavaScriptObject`s, so therefore
-    // they cannot be used with the usual `package:js` types.
-    expect(e is HTMLDivElement, isFalse);
-  });
-  test('dom-is-static-js', () {
-    var e = confuse(new html.DivElement());
-    // However, HTML types are `JavaScriptObject`s, so they can be used with
-    // static `package:js` types, using `@staticInterop`.
-    expect(e is StaticHTMLDivElement, isTrue);
-  });
-}
diff --git a/tests/lib_2/html/js_interop_constructor_name/error2_test.dart b/tests/lib_2/html/js_interop_constructor_name/error2_test.dart
deleted file mode 100644
index 85b511742ea..00000000000
--- a/tests/lib_2/html/js_interop_constructor_name/error2_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/minitest.dart';
-
-import 'util.dart';
-
-main() {
-  setUpJS();
-  test('String-is-not-js', () {
-    var e = confuse('kombucha');
-    // A String should not be a JS interop type. The type test flags are added
-    // to Interceptor, but should be added to the class that implements all
-    // the JS-interop methods.
-    expect(e is HTMLDivElement, isFalse);
-    expect(e is StaticHTMLDivElement, isFalse);
-  });
-}
diff --git a/tests/lib_2/html/js_interop_constructor_name/method_test.dart b/tests/lib_2/html/js_interop_constructor_name/method_test.dart
deleted file mode 100644
index 251bf8d6c45..00000000000
--- a/tests/lib_2/html/js_interop_constructor_name/method_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html' as html;
-
-import 'package:expect/expect.dart' show Expect;
-import 'package:expect/minitest.dart';
-
-import 'util.dart';
-
-main() {
-  setUpJS();
-  test('js-call-js-method', () {
-    var e = confuse(makeDiv('hello'));
-    expect(e.bar(), equals('hello'));
-  });
-
-  test('dom-call-js-method', () {
-    var e = confuse(new html.DivElement());
-    expect(() => e.bar(), throws);
-  });
-
-  test('js-call-dom-method', () {
-    var e = confuse(makeDiv('hello'));
-    expect(() => e.clone(false), throws);
-  });
-
-  test('dom-call-dom-method', () {
-    var e = confuse(new html.DivElement());
-    Expect.type<html.DivElement>(e.clone(false));
-  });
-
-  test('js-call-static-js-method', () {
-    StaticHTMLDivElement e = confuse(makeDiv('hello'));
-    expect(e.bar(), equals('hello'));
-  });
-
-  test('dom-call-static-js-method', () {
-    StaticHTMLDivElement e = confuse(new html.DivElement());
-    Expect.type<html.DivElement>(e.cloneNode(false));
-  });
-}
diff --git a/tests/lib_2/html/js_interop_constructor_name/util.dart b/tests/lib_2/html/js_interop_constructor_name/util.dart
deleted file mode 100644
index bdb5602b7ad..00000000000
--- a/tests/lib_2/html/js_interop_constructor_name/util.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS()
-library util;
-
-import 'package:js/js.dart';
-
-@JS()
-external void eval(String code);
-
-@JS()
-external makeDiv(String text);
-
-// Static error to name @JS class the same as a @Native class, so we use a
-// namespace `Foo` to avoid conflicting with the native class.
-@JS('Foo.HTMLDivElement')
-class HTMLDivElement {
-  external String bar();
-}
-
-@JS('Foo.HTMLDivElement')
-@staticInterop
-class StaticHTMLDivElement {}
-
-extension StaticHTMLDivElementExtension on StaticHTMLDivElement {
-  external String bar();
-  external StaticHTMLDivElement cloneNode(bool deep);
-}
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-void setUpJS() {
-  eval(r"""
-  var Foo = {}
-
-  // A constructor function with the same name as a HTML element.
-  Foo.HTMLDivElement = function(a) {
-    this.a = a;
-  }
-
-  Foo.HTMLDivElement.prototype.bar = function() {
-    return this.a;
-  }
-
-  Foo.HTMLDivElement.prototype.toString = function() {
-    return "HTMLDivElement(" + this.a + ")";
-  }
-
-  self.makeDiv = function(text) {
-    return new Foo.HTMLDivElement(text);
-  }
-  """);
-}
diff --git a/tests/lib_2/html/js_javascript_function_test.dart b/tests/lib_2/html/js_javascript_function_test.dart
deleted file mode 100644
index 992eac25a5f..00000000000
--- a/tests/lib_2/html/js_javascript_function_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:js';
-
-import 'package:expect/minitest.dart';
-
-import 'js_test_util.dart';
-
-main() {
-  injectJs();
-
-  test('is check', () {
-    var fn = (String s) => true;
-    var jsFn = allowInterop(fn);
-    expect(fn is StringToBool, isTrue);
-    expect(jsFn is StringToBool, isTrue);
-    expect(jsFn is Function, isTrue);
-    expect(jsFn is List, isFalse);
-  });
-}
diff --git a/tests/lib_2/html/js_jsarray_test.dart b/tests/lib_2/html/js_jsarray_test.dart
deleted file mode 100644
index d8e1f7d4474..00000000000
--- a/tests/lib_2/html/js_jsarray_test.dart
+++ /dev/null
@@ -1,157 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:indexed_db' show IdbFactory, KeyRange;
-import 'dart:typed_data' show Int32List;
-import 'dart:js';
-
-import 'package:js/js_util.dart' as js_util;
-import 'package:expect/minitest.dart';
-
-import 'js_test_util.dart';
-
-main() {
-  injectJs();
-
-  test('new JsArray()', () {
-    var array = new JsArray();
-    var arrayType = context['Array'];
-    expect(array.instanceof(arrayType), true);
-    expect(array, []);
-    // basic check that it behaves like a List
-    array.addAll([1, 2, 3]);
-    expect(array, [1, 2, 3]);
-  });
-
-  test('new JsArray.from()', () {
-    var array = new JsArray.from([1, 2, 3]);
-    var arrayType = context['Array'];
-    expect(array.instanceof(arrayType), true);
-    expect(array, [1, 2, 3]);
-  });
-
-  test('get Array from JS', () {
-    context['a'] = new JsObject(context['Array'], [1, 2, 3]);
-    expect(context.callMethod('isPropertyInstanceOf', ['a', context['Array']]),
-        isTrue);
-    var a = context['a'];
-    expect(a is JsArray, isTrue);
-    expect(a, [1, 2, 3]);
-    context.deleteProperty('a');
-  });
-
-  test('pass Array to JS', () {
-    context['a'] = [1, 2, 3];
-    var a = context['a'];
-    expect(a is List, isTrue);
-    expect(a is JsArray, isFalse);
-    expect(a, [1, 2, 3]);
-    context.deleteProperty('a');
-  });
-
-  test('[]', () {
-    var array = new JsArray.from([1, 2]);
-    expect(array[0], 1);
-    expect(array[1], 2);
-    expect(() => array[-1], throwsRangeError);
-    expect(() => array[2], throwsRangeError);
-  });
-
-  test('[]=', () {
-    var array = new JsArray<Object>.from([1, 2]);
-    array[0] = 'd';
-    array[1] = 'e';
-    expect(array, ['d', 'e']);
-    expect(() => array[-1] = 3, throwsRangeError);
-    expect(() => array[2] = 3, throwsRangeError);
-  });
-
-  test('length', () {
-    var array = new JsArray.from([1, 2, 3]);
-    expect(array.length, 3);
-    array.add(4);
-    expect(array.length, 4);
-    array.length = 2;
-    expect(array, [1, 2]);
-    array.length = 3;
-    expect(array, [1, 2, null]);
-  });
-
-  test('add', () {
-    var array = new JsArray();
-    array.add('a');
-    expect(array, ['a']);
-    array.add('b');
-    expect(array, ['a', 'b']);
-  });
-
-  test('addAll', () {
-    var array = new JsArray();
-    array.addAll(['a', 'b']);
-    expect(array, ['a', 'b']);
-    // make sure addAll can handle Iterables
-    array.addAll(new Set.from(['c']));
-    expect(array, ['a', 'b', 'c']);
-  });
-
-  test('insert', () {
-    var array = new JsArray.from([]);
-    array.insert(0, 'b');
-    expect(array, ['b']);
-    array.insert(0, 'a');
-    expect(array, ['a', 'b']);
-    array.insert(2, 'c');
-    expect(array, ['a', 'b', 'c']);
-    expect(() => array.insert(4, 'e'), throwsRangeError);
-    expect(() => array.insert(-1, 'e'), throwsRangeError);
-  });
-
-  test('removeAt', () {
-    var array = new JsArray.from(['a', 'b', 'c']);
-    expect(array.removeAt(1), 'b');
-    expect(array, ['a', 'c']);
-    expect(() => array.removeAt(2), throwsRangeError);
-    expect(() => array.removeAt(-1), throwsRangeError);
-  });
-
-  test('removeLast', () {
-    var array = new JsArray.from(['a', 'b', 'c']);
-    expect(array.removeLast(), 'c');
-    expect(array, ['a', 'b']);
-    array.length = 0;
-    expect(() => array.removeLast(), throwsRangeError);
-  });
-
-  test('removeRange', () {
-    var array = new JsArray.from(['a', 'b', 'c', 'd']);
-    array.removeRange(1, 3);
-    expect(array, ['a', 'd']);
-    expect(() => array.removeRange(-1, 2), throwsRangeError);
-    expect(() => array.removeRange(0, 3), throwsRangeError);
-    expect(() => array.removeRange(2, 1), throwsRangeError);
-  });
-
-  test('setRange', () {
-    var array = new JsArray.from(['a', 'b', 'c', 'd']);
-    array.setRange(1, 3, ['e', 'f']);
-    expect(array, ['a', 'e', 'f', 'd']);
-    array.setRange(3, 4, ['g', 'h', 'i'], 1);
-    expect(array, ['a', 'e', 'f', 'h']);
-  });
-
-  test('sort', () {
-    var array = new JsArray.from(['c', 'a', 'b']);
-    array.sort();
-    expect(array, ['a', 'b', 'c']);
-  });
-
-  test('sort with a Comparator', () {
-    var array = new JsArray.from(['c', 'a', 'b']);
-    array.sort((a, b) => -(a.compareTo(b)));
-    expect(array, ['c', 'b', 'a']);
-  });
-}
diff --git a/tests/lib_2/html/js_jsfunc_callmethod_test.dart b/tests/lib_2/html/js_jsfunc_callmethod_test.dart
deleted file mode 100644
index d0c09bed080..00000000000
--- a/tests/lib_2/html/js_jsfunc_callmethod_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:indexed_db' show IdbFactory, KeyRange;
-import 'dart:typed_data' show Int32List;
-import 'dart:js';
-
-import 'package:js/js_util.dart' as js_util;
-import 'package:expect/minitest.dart';
-
-import 'js_test_util.dart';
-
-main() {
-  injectJs();
-
-  test('new JsObject can return a JsFunction', () {
-    var f = new JsObject(context['Function']);
-    expect(f is JsFunction, isTrue);
-  });
-
-  test('JsFunction.apply on a function defined in JS', () {
-    expect(context['razzle'].apply([]), equals(42));
-  });
-
-  test('JsFunction.apply on a function that uses this', () {
-    var object = new Object();
-    expect(context['returnThis'].apply([], thisArg: object), same(object));
-  });
-
-  test('JsObject.callMethod on a function defined in JS', () {
-    expect(context.callMethod('razzle'), equals(42));
-    expect(() => context.callMethod('dazzle'), throwsNoSuchMethodError);
-  });
-
-  test('callMethod with many arguments', () {
-    expect(context.callMethod('varArgs', [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]),
-        equals(55));
-  });
-
-  test('access a property of a function', () {
-    expect(context.callMethod('Bar'), "ret_value");
-    expect(context['Bar']['foo'], "property_value");
-  });
-/*
- TODO(jacobr): evaluate whether we should be in the business of throwing
- ArgumentError outside of checked mode. In unchecked mode this should just
- return a NoSuchMethodError as the class lacks a method "true".
-
-    test('callMethod throws if name is not a String or num', () {
-      expect(() => context.callMethod(true),
-          throwsArgumentError);
-    });
-*/
-}
diff --git a/tests/lib_2/html/js_jsify_test.dart b/tests/lib_2/html/js_jsify_test.dart
deleted file mode 100644
index db5f6f2cf0c..00000000000
--- a/tests/lib_2/html/js_jsify_test.dart
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:indexed_db' show IdbFactory, KeyRange;
-import 'dart:typed_data' show Int32List;
-import 'dart:js';
-
-import 'package:js/js_util.dart' as js_util;
-import 'package:expect/minitest.dart';
-
-import 'js_test_util.dart';
-
-main() {
-  injectJs();
-
-  test('convert a List', () {
-    final list = [1, 2, 3, 4, 5, 6, 7, 8];
-    var array = new JsObject.jsify(list);
-    expect(context.callMethod('isArray', [array]), isTrue);
-    expect(array['length'], equals(list.length));
-    for (var i = 0; i < list.length; i++) {
-      expect(array[i], equals(list[i]));
-    }
-  });
-
-  test('convert an Iterable', () {
-    final set = new Set.from([1, 2, 3, 4, 5, 6, 7, 8]);
-    var array = new JsObject.jsify(set);
-    expect(context.callMethod('isArray', [array]), isTrue);
-    expect(array['length'], equals(set.length));
-    for (var i = 0; i < array['length']; i++) {
-      expect(set.contains(array[i]), isTrue);
-    }
-  });
-
-  test('convert a Map', () {
-    var map = {
-      'a': 1,
-      'b': 2,
-      'c': 3,
-      'd': allowInteropCaptureThis((that) => 42)
-    };
-    var jsMap = new JsObject.jsify(map);
-    expect(!context.callMethod('isArray', [jsMap]), isTrue);
-    for (final key in map.keys) {
-      expect(context.callMethod('checkMap', [jsMap, key, map[key]]), isTrue);
-    }
-  });
-
-  test('deep convert a complex object', () {
-    dynamic object = {
-      'a': [
-        1,
-        [2, 3]
-      ],
-      'b': {
-        'c': 3,
-        'd': new JsObject(context['Foo'], [42])
-      },
-      'e': null
-    };
-    var jsObject = new JsObject.jsify(object);
-    expect(jsObject['a'][0], equals(object['a'][0]));
-    expect(jsObject['a'][1][0], equals(object['a'][1][0]));
-    expect(jsObject['a'][1][1], equals(object['a'][1][1]));
-    expect(jsObject['b']['c'], equals(object['b']['c']));
-    expect(jsObject['b']['d'], equals(object['b']['d']));
-    expect(jsObject['b']['d'].callMethod('bar'), equals(42));
-    expect(jsObject['e'], isNull);
-  });
-
-  test('throws if object is not a Map or Iterable', () {
-    expect(() => new JsObject.jsify('a'), throwsArgumentError);
-  });
-}
diff --git a/tests/lib_2/html/js_jsobject_test.dart b/tests/lib_2/html/js_jsobject_test.dart
deleted file mode 100644
index 06a2e8c5577..00000000000
--- a/tests/lib_2/html/js_jsobject_test.dart
+++ /dev/null
@@ -1,135 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:indexed_db' show IdbFactory, KeyRange;
-import 'dart:typed_data' show Int32List;
-import 'dart:js';
-
-import 'package:js/js_util.dart' as js_util;
-import 'package:expect/minitest.dart';
-
-import 'js_test_util.dart';
-
-main() {
-  injectJs();
-
-  test('new Foo()', () {
-    var foo = new JsObject(context['Foo'], [42]);
-    expect(foo['a'], equals(42));
-    expect(foo.callMethod('bar'), equals(42));
-    expect(() => foo.callMethod('baz'), throwsNoSuchMethodError);
-  });
-
-  test('new container.Foo()', () {
-    final Foo2 = context['container']['Foo'];
-    final foo = new JsObject(Foo2, [42]);
-    expect(foo['a'], 42);
-    expect(Foo2['b'], 38);
-  });
-
-  test('new Array()', () {
-    var a = new JsObject(context['Array']);
-    expect(a is JsArray, isTrue);
-
-    // Test that the object still behaves via the base JsObject interface.
-    // JsArray specific tests are below.
-    expect(a['length'], 0);
-
-    a.callMethod('push', ["value 1"]);
-    expect(a['length'], 1);
-    expect(a[0], "value 1");
-
-    a.callMethod('pop');
-    expect(a['length'], 0);
-  });
-
-  test('new Date()', () {
-    final a = new JsObject(context['Date']);
-    expect(a.callMethod('getTime'), isNotNull);
-  });
-
-  test('new Date(12345678)', () {
-    final a = new JsObject(context['Date'], [12345678]);
-    expect(a.callMethod('getTime'), equals(12345678));
-  });
-
-  test('new Date("December 17, 1995 03:24:00 GMT")', () {
-    final a = new JsObject(context['Date'], ["December 17, 1995 03:24:00 GMT"]);
-    expect(a.callMethod('getTime'), equals(819170640000));
-  });
-
-  test('new Date(1995,11,17)', () {
-    // Note: JS Date counts months from 0 while Dart counts from 1.
-    final a = new JsObject(context['Date'], [1995, 11, 17]);
-    final b = new DateTime(1995, 12, 17);
-    expect(a.callMethod('getTime'), equals(b.millisecondsSinceEpoch));
-  });
-
-  test('new Date(1995,11,17,3,24,0)', () {
-    // Note: JS Date counts months from 0 while Dart counts from 1.
-    final a = new JsObject(context['Date'], [1995, 11, 17, 3, 24, 0]);
-    final b = new DateTime(1995, 12, 17, 3, 24, 0);
-    expect(a.callMethod('getTime'), equals(b.millisecondsSinceEpoch));
-  });
-
-  test('new Object()', () {
-    final a = new JsObject(context['Object']);
-    expect(a, isNotNull);
-
-    a['attr'] = "value";
-    expect(a['attr'], equals("value"));
-  });
-
-  test(r'new RegExp("^\w+$")', () {
-    final a = new JsObject(context['RegExp'], [r'^\w+$']);
-    expect(a, isNotNull);
-    expect(a.callMethod('test', ['true']), isTrue);
-    expect(a.callMethod('test', [' false']), isFalse);
-  });
-
-  test('js instantiation via map notation : new Array()', () {
-    final a = new JsObject(context['Array']);
-    expect(a, isNotNull);
-    expect(a['length'], equals(0));
-
-    a.callMethod('push', ["value 1"]);
-    expect(a['length'], equals(1));
-    expect(a[0], equals("value 1"));
-
-    a.callMethod('pop');
-    expect(a['length'], equals(0));
-  });
-
-  test('js instantiation via map notation : new Date()', () {
-    final a = new JsObject(context['Date']);
-    expect(a.callMethod('getTime'), isNotNull);
-  });
-
-  test('typed array', () {
-    if (Platform.supportsTypedData) {
-      // Safari's ArrayBuffer is not a Function and so doesn't support bind
-      // which JsObject's constructor relies on.
-      // bug: https://bugs.webkit.org/show_bug.cgi?id=122976
-      if (context['ArrayBuffer']['bind'] != null) {
-        final codeUnits = "test".codeUnits;
-        final buf = new JsObject(context['ArrayBuffer'], [codeUnits.length]);
-        final bufView = new JsObject(context['Uint8Array'], [buf]);
-        for (var i = 0; i < codeUnits.length; i++) {
-          bufView[i] = codeUnits[i];
-        }
-      }
-    }
-  });
-
-  test('>10 parameters', () {
-    final o = new JsObject(context['Baz'], [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]);
-    for (var i = 1; i <= 11; i++) {
-      expect(o["f$i"], i);
-    }
-    expect(o['constructor'], equals(context['Baz']));
-  });
-}
diff --git a/tests/lib_2/html/js_methods_test.dart b/tests/lib_2/html/js_methods_test.dart
deleted file mode 100644
index 14fef959d65..00000000000
--- a/tests/lib_2/html/js_methods_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:indexed_db' show IdbFactory, KeyRange;
-import 'dart:typed_data' show Int32List;
-import 'dart:js';
-
-import 'package:js/js_util.dart' as js_util;
-import 'package:expect/minitest.dart';
-
-import 'js_test_util.dart';
-
-main() {
-  injectJs();
-
-  test('hashCode and ==', () {
-    final o1 = context['Object'];
-    final o2 = context['Object'];
-    expect(o1 == o2, isTrue);
-    expect(o1.hashCode == o2.hashCode, isTrue);
-    final d = context['document'];
-    expect(o1 == d, isFalse);
-  });
-
-  test('toString', () {
-    var foo = new JsObject(context['Foo'], [42]);
-    expect(foo.toString(), equals("I'm a Foo a=42"));
-    var container = context['container'];
-    expect(container.toString(), equals("[object Object]"));
-  });
-
-  test('toString returns a String even if the JS object does not', () {
-    var foo = new JsObject(context['Liar']);
-    expect(foo.callMethod('toString'), 1);
-    expect(foo.toString(), '1');
-  });
-
-  test('instanceof', () {
-    var foo = new JsObject(context['Foo'], [1]);
-    expect(foo.instanceof(context['Foo']), isTrue);
-    expect(foo.instanceof(context['Object']), isTrue);
-    expect(foo.instanceof(context['String']), isFalse);
-  });
-
-  test('deleteProperty', () {
-    var object = new JsObject.jsify({});
-    object['a'] = 1;
-    expect(context['Object'].callMethod('keys', [object])['length'], 1);
-    expect(context['Object'].callMethod('keys', [object])[0], "a");
-    object.deleteProperty("a");
-    expect(context['Object'].callMethod('keys', [object])['length'], 0);
-  });
-
-/* TODO(jacobr): this is another test that is inconsistent with JS semantics.
-  test('deleteProperty throws if name is not a String or num', () {
-    var object = new JsObject.jsify({});
-    expect(() => object.deleteProperty(true),
-        throwsArgumentError);
-  });
-*/
-
-  test('hasProperty', () {
-    var object = new JsObject.jsify({});
-    object['a'] = 1;
-    expect(object.hasProperty('a'), isTrue);
-    expect(object.hasProperty('b'), isFalse);
-  });
-
-/* TODO(jacobr): is this really the correct unchecked mode behavior?
-  test('hasProperty throws if name is not a String or num', () {
-    var object = new JsObject.jsify({});
-    expect(() => object.hasProperty(true),
-        throwsArgumentError);
-  });
-*/
-
-  test('[] and []=', () {
-    final myArray = context['myArray'];
-    expect(myArray['length'], equals(1));
-    expect(myArray[0], equals("value1"));
-    myArray[0] = "value2";
-    expect(myArray['length'], equals(1));
-    expect(myArray[0], equals("value2"));
-
-    final foo = new JsObject(context['Foo'], [1]);
-    foo["getAge"] = () => 10;
-    expect(foo.callMethod('getAge'), equals(10));
-  });
-
-/* TODO(jacobr): remove as we should only throw this in checked mode.
-  test('[] and []= throw if name is not a String or num', () {
-    var object = new JsObject.jsify({});
-    expect(() => object[true],
-        throwsArgumentError);
-    expect(() => object[true] = 1,
-        throwsArgumentError);
-  });
-*/
-}
diff --git a/tests/lib_2/html/js_test_util.dart b/tests/lib_2/html/js_test_util.dart
deleted file mode 100644
index a2e63cf46c5..00000000000
--- a/tests/lib_2/html/js_test_util.dart
+++ /dev/null
@@ -1,230 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library TestJsUtils;
-
-import 'dart:html';
-import 'dart:indexed_db' show IdbFactory, KeyRange;
-import 'dart:js';
-
-import 'package:expect/minitest.dart';
-
-injectJs() {
-  final script = new ScriptElement();
-  script.type = 'text/javascript';
-  script.innerHtml = r"""
-var x = 42;
-
-var _x = 123;
-
-var myArray = ["value1"];
-
-var foreignDoc = (function(){
-  var doc = document.implementation.createDocument("", "root", null);
-  var element = doc.createElement('element');
-  element.setAttribute('id', 'abc');
-  doc.documentElement.appendChild(element);
-  return doc;
-})();
-
-function razzle() {
-  return x;
-}
-
-function returnThis() {
-  return this;
-}
-
-function getTypeOf(o) {
-  return typeof(o);
-}
-
-function varArgs() {
-  var args = arguments;
-  var sum = 0;
-  for (var i = 0; i < args.length; ++i) {
-    sum += args[i];
-  }
-  return sum;
-}
-
-function Foo(a) {
-  this.a = a;
-}
-
-Foo.b = 38;
-
-Foo.prototype.bar = function() {
-  return this.a;
-}
-Foo.prototype.toString = function() {
-  return "I'm a Foo a=" + this.a;
-}
-
-var container = new Object();
-container.Foo = Foo;
-
-function isArray(a) {
-  return a instanceof Array;
-}
-
-function checkMap(m, key, value) {
-  if (m.hasOwnProperty(key))
-    return m[key] == value;
-  else
-    return false;
-}
-
-function invokeCallback() {
-  return callback();
-}
-
-function invokeCallbackWith11params() {
-  return callbackWith11params(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11);
-}
-
-function returnElement(element) {
-  return element;
-}
-
-function getElementAttribute(element, attr) {
-  return element.getAttribute(attr);
-}
-
-function addClassAttributes(list) {
-  var result = "";
-  for (var i=0; i < list.length; i++) {
-    result += list[i].getAttribute("class");
-  }
-  return result;
-}
-
-function getNewDate() {
-  return new Date(1995, 11, 17);
-}
-
-function getNewDivElement() {
-  return document.createElement("div");
-}
-
-function getNewEvent() {
-  return new CustomEvent('test');
-}
-
-function getNewBlob() {
-  var fileParts = ['<a id="a"><b id="b">hey!</b></a>'];
-  return new Blob(fileParts, {type : 'text/html'});
-}
-
-function getNewIDBKeyRange() {
-  return IDBKeyRange.only(1);
-}
-
-function getNewImageData() {
-  var canvas = document.createElement('canvas');
-  var context = canvas.getContext('2d');
-  return context.createImageData(1, 1);
-}
-
-function getNewInt32Array() {
-  return new Int32Array([1, 2, 3, 4, 5, 6, 7, 8]);
-}
-
-function getNewArrayBuffer() {
-  return new ArrayBuffer(8);
-}
-
-function isPropertyInstanceOf(property, type) {
-  return window[property] instanceof type;
-}
-
-function testJsMap(callback) {
-  var result = callback();
-  return result['value'];
-}
-
-function addTestProperty(o) {
-  o.testProperty = "test";
-}
-
-function fireClickEvent(w) {
-  var event = w.document.createEvent('Events');
-  event.initEvent('click', true, false);
-  w.document.dispatchEvent(event);
-}
-
-function Bar() {
-  return "ret_value";
-}
-Bar.foo = "property_value";
-
-function Baz(p1,p2,p3,p4,p5,p6,p7,p8,p9,p10,p11) {
-  this.f1 = p1;
-  this.f2 = p2;
-  this.f3 = p3;
-  this.f4 = p4;
-  this.f5 = p5;
-  this.f6 = p6;
-  this.f7 = p7;
-  this.f8 = p8;
-  this.f9 = p9;
-  this.f10 = p10;
-  this.f11 = p11;
-}
-
-function Liar(){}
-
-Liar.prototype.toString = function() {
-  return 1;
-}
-
-function identical(o1, o2) {
-  return o1 === o2;
-}
-
-var someProto = { role: "proto" };
-var someObject = Object.create(someProto);
-someObject.role = "object";
-
-""";
-  document.body.append(script);
-}
-
-typedef bool StringToBool(String s);
-
-// Some test are either causing other test to fail in IE9, or they are failing
-// for unknown reasons
-// useHtmlConfiguration+ImageData bug: dartbug.com/14355
-skipIE9_test(String description, t()) {
-  if (Platform.supportsTypedData) {
-    test(description, t);
-  }
-}
-
-class Foo {
-  final JsObject _proxy;
-
-  Foo(num a) : this._proxy = new JsObject(context['Foo'], [a]);
-
-  JsObject toJs() => _proxy;
-
-  num get a => _proxy['a'];
-  num bar() => _proxy.callMethod('bar');
-}
-
-class Color {
-  static final RED = new Color._("red");
-  static final BLUE = new Color._("blue");
-  String _value;
-  Color._(this._value);
-  String toJs() => this._value;
-}
-
-class TestDartObject {}
-
-class Callable {
-  call() => 'called';
-}
diff --git a/tests/lib_2/html/js_transferrables_test.dart b/tests/lib_2/html/js_transferrables_test.dart
deleted file mode 100644
index 3a839560945..00000000000
--- a/tests/lib_2/html/js_transferrables_test.dart
+++ /dev/null
@@ -1,120 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:indexed_db' show IdbFactory, KeyRange;
-import 'dart:typed_data' show Int32List;
-import 'dart:js';
-
-import 'package:js/js_util.dart' as js_util;
-import 'package:expect/minitest.dart';
-
-import 'js_test_util.dart';
-
-main() {
-  injectJs();
-
-  test('DateTime', () {
-    var date = context.callMethod('getNewDate');
-    expect(date is DateTime, isTrue);
-  });
-
-  test('window', () {
-    expect(context['window'] is Window, isTrue);
-  });
-
-  test('foreign browser objects should be proxied', () {
-    var iframe = new IFrameElement();
-    document.body.children.add(iframe);
-    var proxy = new JsObject.fromBrowserObject(iframe);
-
-    // Window
-    var contentWindow = proxy['contentWindow'];
-    expect(contentWindow is! Window, isTrue);
-    expect(contentWindow is JsObject, isTrue);
-
-    // Node
-    var foreignDoc = contentWindow['document'];
-    expect(foreignDoc is! Node, isTrue);
-    expect(foreignDoc is JsObject, isTrue);
-
-    // Event
-    var clicked = false;
-    foreignDoc['onclick'] = (e) {
-      expect(e is! Event, isTrue);
-      expect(e is JsObject, isTrue);
-      clicked = true;
-    };
-
-    context.callMethod('fireClickEvent', [contentWindow]);
-    expect(clicked, isTrue);
-  });
-
-  test('foreign functions pass function is checks', () {
-    var iframe = new IFrameElement();
-    document.body.children.add(iframe);
-    var proxy = new JsObject.fromBrowserObject(iframe);
-
-    var contentWindow = proxy['contentWindow'];
-    var foreignDoc = contentWindow['document'];
-
-    // Function
-    var foreignFunction = foreignDoc['createElement'];
-    expect(foreignFunction is JsFunction, isTrue);
-
-    // Verify that internal isChecks in callMethod work.
-    foreignDoc.callMethod('createElement', ['div']);
-
-    var typedContentWindow = js_util.getProperty(iframe, 'contentWindow');
-    var typedForeignDoc = js_util.getProperty(typedContentWindow, 'document');
-
-    var typedForeignFunction =
-        js_util.getProperty(typedForeignDoc, 'createElement');
-    expect(typedForeignFunction is Function, isTrue);
-    js_util.callMethod(typedForeignDoc, 'createElement', ['div']);
-  });
-
-  test('document', () {
-    expect(context['document'] is Document, isTrue);
-  });
-
-  skipIE9_test('Blob', () {
-    var blob = context.callMethod('getNewBlob');
-    expect(blob is Blob, isTrue);
-    expect(blob.type, equals('text/html'));
-  });
-
-  test('unattached DivElement', () {
-    var node = context.callMethod('getNewDivElement');
-    expect(node is DivElement, isTrue);
-  });
-
-  test('Event', () {
-    var event = context.callMethod('getNewEvent');
-    expect(event is Event, true);
-  });
-
-  test('KeyRange', () {
-    if (IdbFactory.supported) {
-      var node = context.callMethod('getNewIDBKeyRange');
-      expect(node is KeyRange, isTrue);
-    }
-  });
-
-  test('ImageData', () {
-    var node = context.callMethod('getNewImageData');
-    expect(node is ImageData, isTrue);
-  });
-
-  test('typed data: Int32Array', () {
-    if (Platform.supportsTypedData) {
-      var list = context.callMethod('getNewInt32Array');
-      print(list);
-      expect(list is Int32List, isTrue);
-      expect(list, equals([1, 2, 3, 4, 5, 6, 7, 8]));
-    }
-  });
-}
diff --git a/tests/lib_2/html/js_typed_interop_anonymous2_test.dart b/tests/lib_2/html/js_typed_interop_anonymous2_test.dart
deleted file mode 100644
index 99b4de5ae5b..00000000000
--- a/tests/lib_2/html/js_typed_interop_anonymous2_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS()
-library js_typed_interop_anonymous2_test;
-
-import 'dart:html';
-import 'dart:js' as js;
-
-import 'package:js/js.dart';
-import 'package:expect/minitest.dart';
-
-@JS()
-@anonymous
-class A {
-  external factory A({B b});
-
-  external B get b;
-}
-
-@JS()
-@anonymous
-class B {
-  external factory B({C c});
-
-  external C get c;
-}
-
-@JS()
-@anonymous
-class C {
-  external factory C();
-}
-
-// D is unreachable, and that is OK
-@JS()
-@anonymous
-class D {
-  external factory D();
-}
-
-main() {
-  test('simple', () {
-    var b = new B();
-    var a = new A(b: b);
-    expect(a.b, equals(b));
-    expect(b.c, isNull);
-  });
-}
diff --git a/tests/lib_2/html/js_typed_interop_anonymous_test.dart b/tests/lib_2/html/js_typed_interop_anonymous_test.dart
deleted file mode 100644
index 06755d37f42..00000000000
--- a/tests/lib_2/html/js_typed_interop_anonymous_test.dart
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS()
-library js_typed_interop_anonymous_test;
-
-import 'package:js/js.dart';
-import 'package:expect/minitest.dart';
-
-@JS()
-@anonymous
-class Literal {
-  external factory Literal({int x, String y, num z});
-
-  external set x(int v);
-  external int get x;
-  external String get y;
-  external num get z;
-}
-
-class MockLiteral implements Literal {
-  int _v = 0;
-  set x(int v) {
-    _v = v;
-  }
-
-  int get x => _v;
-  String get y => "";
-  num get z => 1;
-}
-
-main() {
-  test('simple', () {
-    var l = new Literal(x: 3, y: "foo");
-    expect(l.x, equals(3));
-    expect(l.y, equals("foo"));
-    expect(l.z, isNull);
-  });
-
-  test('mock', () {
-    Literal l = new MockLiteral();
-    expect(l.x, equals(0));
-    l.x = 3;
-    expect(l.x, equals(3));
-    expect(l.y, equals(""));
-    expect(l.z, equals(1));
-  });
-
-  // Test that instance checks behave appropriately.
-  test('Instance checks: implements', () {
-    Object l = new Literal(x: 3, y: "foo");
-    Object m = new MockLiteral();
-    expect(m is Literal, isTrue);
-    expect(m is MockLiteral, isTrue);
-    expect(l is Literal, isTrue);
-    expect(l is MockLiteral, isFalse);
-  });
-
-  // Test that casts behave appropriately.
-  test('Casts: implements', () {
-    Object l = new Literal(x: 3, y: "foo");
-    Object m = new MockLiteral();
-    expect(m as Literal, equals(m));
-    expect(m as MockLiteral, equals(m));
-    expect(l as Literal, equals(l));
-    expect(() => l as MockLiteral, throws);
-  });
-}
diff --git a/tests/lib_2/html/js_typed_interop_anonymous_unreachable_test.dart b/tests/lib_2/html/js_typed_interop_anonymous_unreachable_test.dart
deleted file mode 100644
index 70c1dd688a9..00000000000
--- a/tests/lib_2/html/js_typed_interop_anonymous_unreachable_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS()
-library js_typed_interop_anonymous_unreachable_test;
-
-import 'dart:html';
-import 'dart:js' as js;
-
-import 'package:js/js.dart';
-import 'package:expect/minitest.dart';
-
-@JS()
-@anonymous
-class Literal {
-  external factory Literal({int x, String y, num z});
-
-  external int get x;
-  external String get y;
-  external num get z;
-}
-
-main() {
-  test('nothing to do', () {
-    // This test is empty, but it is a regression for Issue# 24974: dart2js
-    // would crash trying to compile code that used @anonymous and that was
-    // not reachable from main.
-  });
-}
diff --git a/tests/lib_2/html/js_typed_interop_bind_this_test.dart b/tests/lib_2/html/js_typed_interop_bind_this_test.dart
deleted file mode 100644
index dc4bc2ad9bb..00000000000
--- a/tests/lib_2/html/js_typed_interop_bind_this_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS()
-library js_typed_interop_bind_this_test;
-
-import 'dart:html';
-
-import 'package:js/js.dart';
-import 'package:expect/minitest.dart';
-
-// This is a regression test for https://github.com/dart-lang/sdk/issues/25658
-
-_injectJs() {
-  document.body.append(new ScriptElement()
-    ..type = 'text/javascript'
-    ..innerHtml = r"""
-  "use strict";
-
-  function JsTest() {
-  }
-
-  JsTest.returnThis = function(name, value) {
-    return this;
-  };
-""");
-}
-
-@JS('JsTest.returnThis')
-external returnThis([name, value]);
-
-@JS('JsTest')
-external get jsTestObject;
-
-@JS('window')
-external get jsWindow;
-
-main() {
-  _injectJs();
-
-  group('bind this', () {
-    test('simple', () {
-      expect(identical(returnThis(), jsWindow), isFalse);
-      expect(identical(returnThis(), null), isFalse);
-      expect(identical(returnThis(), jsTestObject), isTrue);
-    });
-  });
-}
diff --git a/tests/lib_2/html/js_typed_interop_callable_object_test.dart b/tests/lib_2/html/js_typed_interop_callable_object_test.dart
deleted file mode 100644
index 9ede0a2e2dc..00000000000
--- a/tests/lib_2/html/js_typed_interop_callable_object_test.dart
+++ /dev/null
@@ -1,69 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS()
-library js_typed_interop_callable_object_test;
-
-import 'dart:html';
-
-import 'package:js/js.dart';
-import 'package:expect/minitest.dart';
-
-// This is a regression test for https://github.com/dart-lang/sdk/issues/25658
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-_injectJs() {
-  document.body.append(new ScriptElement()
-    ..type = 'text/javascript'
-    ..innerHtml = r"""
-  "use strict";
-
-  window.callableObject = function (a, b) { return a + b; };
-  window.callableObject.foo = function() { return "bar"; };
-  window.callableObject.bar = 42;
-
-""");
-}
-
-@JS()
-@anonymous
-class CallableObject {
-  /// If a @JS class implements `call`, the underlying representation must be
-  /// a JavaScript callable (i.e. function).
-  external num call(num a, num b);
-  external int get bar;
-  external String foo();
-}
-
-@JS()
-external CallableObject get callableObject;
-
-main() {
-  _injectJs();
-
-  group('callable object', () {
-    test('simple', () {
-      var obj = callableObject;
-      expect(obj(4, 5), equals(9));
-      expect(obj.bar, equals(42));
-      expect(obj.foo(), equals("bar"));
-
-      expect(callableObject(4, 5), equals(9));
-      expect(callableObject.bar, equals(42));
-      expect(callableObject.foo(), equals("bar"));
-    });
-
-    test('dynamic', () {
-      var obj = confuse(callableObject);
-      expect(obj(4, 5), equals(9));
-      expect(obj.bar, equals(42));
-      expect(obj.foo(), equals("bar"));
-    });
-  });
-}
diff --git a/tests/lib_2/html/js_typed_interop_default_arg_static_test.dart b/tests/lib_2/html/js_typed_interop_default_arg_static_test.dart
deleted file mode 100644
index c8b6c8ebf8e..00000000000
--- a/tests/lib_2/html/js_typed_interop_default_arg_static_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS()
-library js_typed_interop_test;
-
-import 'dart:html';
-
-import 'package:js/js.dart';
-import 'package:expect/minitest.dart';
-
-_injectJs() {
-  document.body.append(new ScriptElement()
-    ..type = 'text/javascript'
-    ..innerHtml = r"""
-  var Foo = {
-    get42: function(b) { return arguments.length >= 1 ? b : 42; }
-  };
-""");
-}
-
-@JS()
-class Foo {
-  external static num get42([num b = 3
-      // TODO(41375): This should be a static error. It's invalid to have a
-      // default value.
-      ]);
-}
-
-main() {
-  _injectJs();
-
-  test('call tearoff from dart with default', () {
-    var f = Foo.get42;
-    // Note: today both SSA and CPS remove the extra argument on static calls,
-    // but they fail to do so on tearoffs.
-    expect(f(), 3);
-    // TODO(41375): Remove this once the above is resolved. This is temporary
-    // to track this test failure.
-    throw ("This test should not execute. It should fail to compile above.");
-  });
-}
diff --git a/tests/lib_2/html/js_typed_interop_default_arg_test.dart b/tests/lib_2/html/js_typed_interop_default_arg_test.dart
deleted file mode 100644
index d5f40cf8e3d..00000000000
--- a/tests/lib_2/html/js_typed_interop_default_arg_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS()
-library js_typed_interop_test;
-
-import 'dart:html';
-
-import 'package:js/js.dart';
-import 'package:expect/minitest.dart';
-
-_injectJs() {
-  document.body.append(new ScriptElement()
-    ..type = 'text/javascript'
-    ..innerHtml = r"""
-  var Foo = {
-    get42: function(b) { return arguments.length >= 1 ? b : 42; }
-  };
-""");
-}
-
-@JS()
-class Foo {
-  external static num get42([num b]);
-}
-
-main() {
-  _injectJs();
-
-  test('call directly from dart', () {
-    expect(Foo.get42(2), 2);
-    expect(Foo.get42(), 42);
-  });
-
-  test('call tearoff from dart with arg', () {
-    var f = Foo.get42;
-    expect(f(2), 2);
-  });
-
-  test('call tearoff from dart with no arg', () {
-    var f = Foo.get42;
-    expect(f(), 42);
-  });
-}
diff --git a/tests/lib_2/html/js_typed_interop_dynamic_test.dart b/tests/lib_2/html/js_typed_interop_dynamic_test.dart
deleted file mode 100644
index 8438dce1ff7..00000000000
--- a/tests/lib_2/html/js_typed_interop_dynamic_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS()
-library js_typed_interop_anonymous_test;
-
-import 'dart:html';
-import 'dart:js' as js;
-
-import 'package:js/js.dart';
-import 'package:js/js_util.dart' as js_util;
-import 'package:expect/minitest.dart';
-
-@JS()
-@anonymous
-class Literal {
-  external factory Literal({int x, String y, num z, Function foo});
-
-  external int get x;
-  external String get y;
-  external num get z;
-  external Function get foo;
-}
-
-@JS()
-@anonymous
-class FunctionWithExpando {
-  external int call();
-  external String get myExpando;
-}
-
-main() {
-  test('object', () {
-    dynamic l = new Literal(x: 3, y: 'foo', foo: allowInterop((x) => x * 2));
-    expect(l.x, equals(3));
-    expect(l.y, equals('foo'));
-    expect(l.z, isNull);
-    expect(l.foo(4), equals(8));
-  });
-
-  test('function', () {
-    // Get a JS function.
-    dynamic f = js_util.getProperty(window, 'addEventListener');
-    js_util.setProperty(f, 'myExpando', 'foo');
-    expect(f.myExpando, equals('foo'));
-  });
-
-  test('dart object', () {
-    dynamic o = new Object();
-    js_util.setProperty(o, 'x', 3);
-    expect(() => o.x, throwsNoSuchMethodError);
-    expect(() => o.foo(), throwsNoSuchMethodError);
-  });
-}
diff --git a/tests/lib_2/html/js_typed_interop_lazy_test.dart b/tests/lib_2/html/js_typed_interop_lazy_test.dart
deleted file mode 100644
index 918193db8b5..00000000000
--- a/tests/lib_2/html/js_typed_interop_lazy_test.dart
+++ /dev/null
@@ -1,283 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS()
-library js_typed_interop_lazy_test;
-
-import 'dart:html';
-
-import 'package:js/js.dart';
-import 'package:js/js_util.dart' as js_util;
-import 'package:expect/minitest.dart';
-
-@JS('someProperty')
-external get foo;
-
-@JS('baz.bar')
-external get bar;
-
-@JS('baz.LazyClass')
-class LazyClass {
-  external factory LazyClass(a);
-  external get a;
-}
-
-@JS('baz.foo.NestedLazyClass')
-class NestedLazyClass {
-  external factory NestedLazyClass(a);
-  external get a;
-}
-
-@anonymous
-@JS('some.bogus.ignored.js.path')
-class AnonClass {
-  external factory AnonClass({a});
-  external get a;
-}
-
-@anonymous
-@JS()
-class AnonClass2 {
-  external factory AnonClass2({b});
-  external get b;
-}
-
-abstract class Foo<T> {
-  T get obj;
-}
-
-class Mock1LazyClass implements LazyClass {
-  noSuchMethod(Invocation i) => i.memberName == #a ? 42 : null;
-}
-
-class Mock2LazyClass implements LazyClass {
-  get a => 42;
-}
-
-class Mock1NestedLazyClass implements NestedLazyClass {
-  noSuchMethod(Invocation i) => i.memberName == #a ? 42 : null;
-}
-
-class Mock2NestedLazyClass implements NestedLazyClass {
-  get a => 42;
-}
-
-class Other {
-  noSuchMethod(Invocation i) {}
-}
-
-// Test that the lazy JS classes can be used as a generic type argument.
-class FooImpl extends Foo<LazyClass> {
-  LazyClass get obj => new LazyClass(100);
-}
-
-class NestedFooImpl extends Foo<NestedLazyClass> {
-  NestedLazyClass get obj => new NestedLazyClass(100);
-}
-
-class ExampleGenericClass<T> {
-  String add(T foo) {
-    return foo.toString();
-  }
-}
-
-main() {
-  group('lazy property', () {
-    test('simple', () {
-      expect(foo, isNull);
-      js_util.setProperty(window, 'someProperty', 42);
-      expect(foo, equals(42));
-    });
-
-    test('nested', () {
-      js_util.setProperty(window, 'baz', js_util.newObject());
-      expect(bar, isNull);
-      js_util.setProperty(window, 'baz', js_util.jsify({'bar': 100}));
-      expect(bar, equals(100));
-    });
-  });
-
-  group('lazy class', () {
-    test('type literal', () {
-      // Fine because we can determine the class literals are equal without
-      // having to determine what (non-existant) JS type they correspond to.
-      var x = LazyClass;
-      var y = LazyClass;
-      expect(x == y, isTrue);
-    });
-
-    test('reference in type parameter', () {
-      var o = new FooImpl();
-      expect(o is Foo<LazyClass>, isTrue);
-    });
-
-    test('create instance', () {
-      var anon = new AnonClass(a: 42);
-      // Until LazyClass is defined, fall back to Anon behavior.
-      expect(anon is LazyClass, isTrue); //# 01: ok
-      expect(new Object() is! LazyClass, isTrue);
-
-      document.body.append(new ScriptElement()
-        ..type = 'text/javascript'
-        ..innerHtml = r"""
-window.baz = {};
-
-baz.LazyClass = function LazyClass(a) {
-  this.a = a;
-};
-""");
-      var l = new LazyClass(42);
-      expect(l.a, equals(42));
-      expect(l is LazyClass, isTrue);
-      expect(l is AnonClass, isTrue);
-      expect((l as AnonClass) == l, isTrue);
-      expect((l as AnonClass2) == l, isTrue);
-      expect(anon is AnonClass, isTrue);
-      expect(anon is AnonClass2, isTrue);
-
-      // Sanity check that is and as are not broken.
-      expect(new Object() is! LazyClass, isTrue);
-      expect(new Object() is! AnonClass, isTrue);
-      expect(new Object() is! AnonClass2, isTrue);
-
-      expect(<AnonClass>[] is List<AnonClass>, isTrue);
-      expect(<AnonClass>[] is List<AnonClass2>, isTrue);
-      expect(<int>[] is! List<AnonClass>, isTrue);
-      expect(<AnonClass>[] is List<LazyClass>, isTrue);
-      expect(<int>[] is! List<LazyClass>, isTrue);
-      expect(<LazyClass>[] is List<LazyClass>, isTrue);
-
-      var listLazyClass = <LazyClass>[];
-      Object instanceLazyObject = l;
-      expect(() => listLazyClass.add(42 as dynamic), throws); //# 01: ok
-      // Regression test for bug where this call failed.
-      listLazyClass.add(instanceLazyObject);
-      listLazyClass.add(null);
-
-      dynamic listLazyClassDynamic = listLazyClass;
-      expect(() => listLazyClassDynamic.add(42), throws); //# 01: ok
-      // Regression test for bug where this call failed.
-      listLazyClassDynamic.add(instanceLazyObject);
-      listLazyClassDynamic.add(null);
-
-      var genericClass = new ExampleGenericClass<LazyClass>();
-      genericClass.add(instanceLazyObject);
-      expect(() => genericClass.add(42 as dynamic), throws); //# 01: ok
-      genericClass.add(null);
-
-      dynamic genericClassDynamic = genericClass;
-      genericClassDynamic.add(instanceLazyObject);
-      expect(() => genericClassDynamic.add(42), throws); //# 01: ok
-      genericClassDynamic.add(null);
-    });
-
-    test('mocks', () {
-      var mock1 = new Mock1LazyClass();
-      expect(mock1 is LazyClass, isTrue);
-      expect((mock1 as dynamic) as LazyClass, equals(mock1));
-      expect(mock1.a, equals(42));
-
-      var mock2 = new Mock2LazyClass();
-      expect(mock2 is LazyClass, isTrue);
-      expect((mock2 as dynamic) as LazyClass, equals(mock2));
-      expect(mock2.a, equals(42));
-
-      Object other = new Other();
-      expect(other is LazyClass, isFalse);
-    });
-  });
-
-  group('nested lazy class', () {
-    test('type literal', () {
-      // Fine because we can determine the class literals are equal without
-      // having to determine what (non-existant) JS type they correspond to.
-      var x = NestedLazyClass;
-      var y = NestedLazyClass;
-      expect(x == y, isTrue);
-    });
-
-    test('reference in type parameter', () {
-      var o = new NestedFooImpl();
-      expect(o is Foo<NestedLazyClass>, isTrue);
-    });
-
-    test('create instance', () {
-      var anon = new AnonClass(a: 42);
-      // Until NestedLazyClass is defined, fall back to Anon behavior.
-      expect(anon is NestedLazyClass, isTrue); //# 01: ok
-      expect(new Object() is! NestedLazyClass, isTrue);
-
-      document.body.append(new ScriptElement()
-        ..type = 'text/javascript'
-        ..innerHtml = r"""
-window.baz = window.baz || {};
-window.baz.foo = {};
-
-baz.foo.NestedLazyClass = function NestedLazyClass(a) {
-  this.a = a;
-};
-""");
-      var l = new NestedLazyClass(42);
-      expect(l.a, equals(42));
-      expect(l is NestedLazyClass, isTrue);
-      expect(l is AnonClass, isTrue);
-      expect((l as AnonClass) == l, isTrue);
-      expect((l as AnonClass2) == l, isTrue);
-      expect(anon is AnonClass, isTrue);
-      expect(anon is AnonClass2, isTrue);
-
-      // Sanity check that is and as are not broken.
-      expect(new Object() is! NestedLazyClass, isTrue);
-      expect(new Object() is! AnonClass, isTrue);
-      expect(new Object() is! AnonClass2, isTrue);
-
-      expect(<AnonClass>[] is List<AnonClass>, isTrue);
-      expect(<AnonClass>[] is List<AnonClass2>, isTrue);
-      expect(<int>[] is! List<AnonClass>, isTrue);
-      expect(<AnonClass>[] is List<NestedLazyClass>, isTrue);
-      expect(<int>[] is! List<NestedLazyClass>, isTrue);
-      expect(<NestedLazyClass>[] is List<NestedLazyClass>, isTrue);
-
-      var listLazyClass = <NestedLazyClass>[];
-      Object instanceLazyObject = l;
-      expect(() => listLazyClass.add(42 as dynamic), throws); //# 01: ok
-      // Regression test for bug where this call failed.
-      listLazyClass.add(instanceLazyObject);
-      listLazyClass.add(null);
-
-      dynamic listLazyClassDynamic = listLazyClass;
-      expect(() => listLazyClassDynamic.add(42), throws); //# 01: ok
-      // Regression test for bug where this call failed.
-      listLazyClassDynamic.add(instanceLazyObject);
-      listLazyClassDynamic.add(null);
-
-      var genericClass = new ExampleGenericClass<NestedLazyClass>();
-      genericClass.add(instanceLazyObject);
-      expect(() => genericClass.add(42 as dynamic), throws); //# 01: ok
-      genericClass.add(null);
-
-      dynamic genericClassDynamic = genericClass;
-      genericClassDynamic.add(instanceLazyObject);
-      expect(() => genericClassDynamic.add(42), throws); //# 01: ok
-      genericClassDynamic.add(null);
-    });
-
-    test('mocks', () {
-      var mock1 = new Mock1NestedLazyClass();
-      expect(mock1 is NestedLazyClass, isTrue);
-      expect((mock1 as dynamic) as NestedLazyClass, equals(mock1));
-      expect(mock1.a, equals(42));
-
-      var mock2 = new Mock2NestedLazyClass();
-      expect(mock2 is NestedLazyClass, isTrue);
-      expect((mock2 as dynamic) as NestedLazyClass, equals(mock2));
-      expect(mock2.a, equals(42));
-
-      Object other = new Other();
-      expect(other is NestedLazyClass, isFalse);
-    });
-  });
-}
diff --git a/tests/lib_2/html/js_typed_interop_rename_static_test.dart b/tests/lib_2/html/js_typed_interop_rename_static_test.dart
deleted file mode 100644
index a8ca50b288a..00000000000
--- a/tests/lib_2/html/js_typed_interop_rename_static_test.dart
+++ /dev/null
@@ -1,97 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS()
-library js_typed_interop_rename_static_test;
-
-import 'dart:html';
-
-import 'package:js/js.dart';
-import 'package:js/js_util.dart' as js_util;
-import 'package:expect/minitest.dart';
-
-@JS('JSTopLevelField')
-external set topLevelFieldOnlySetter(v);
-
-@JS('JSTopLevelField')
-external get topLevelFieldOnlyGetter;
-
-@JS()
-external get topLevelFieldNoRename;
-
-@JS()
-external set topLevelSetterNoRename(v);
-
-@JS()
-external topLevelMethod(v);
-
-@JS('topLevelMethod')
-external renamedTopLevelMethod(v);
-
-@JS('JSFoo')
-class Foo {
-  @JS('JSBar')
-  external static get bar;
-
-  @JS('JSBar')
-  external static set bar(v);
-
-  @JS('JSBar2')
-  external static get bar2;
-
-  @JS('JSBaz')
-  external static set baz(v);
-
-  @JS('JSMethodAddBar')
-  external static addBar(a);
-}
-
-main() {
-  document.body.append(new ScriptElement()
-    ..type = 'text/javascript'
-    ..innerHtml = r"""
-window.JSFoo = {
-  'JSBar': 42,
-  'JSBar2': 80,
-  'JSMethodAddBar': function(a,b) { return a + this.JSBar; }
-};
-window.JSTopLevelField = 91;
-window.topLevelFieldNoRename = 8;
-window.topLevelMethod = function(a) { return a * 2; };
-""");
-
-  group('rename static', () {
-    test('getter', () {
-      expect(Foo.bar, equals(42));
-      expect(Foo.bar2, equals(80));
-      expect(topLevelFieldOnlyGetter, 91);
-      expect(topLevelFieldNoRename, 8);
-    });
-
-    test('setter', () {
-      Foo.baz = 100;
-      expect(js_util.getProperty(js_util.getProperty(window, 'JSFoo'), 'JSBaz'),
-          equals(100));
-      Foo.bar = 30;
-      expect(Foo.bar, equals(30));
-      expect(js_util.getProperty(js_util.getProperty(window, 'JSFoo'), 'JSBar'),
-          equals(30));
-      topLevelFieldOnlySetter = 83;
-      expect(topLevelFieldOnlyGetter, 83);
-      topLevelSetterNoRename = 10;
-      expect(js_util.getProperty(window, 'topLevelSetterNoRename'), 10);
-    });
-
-    test('method', () {
-      Foo.bar = 100;
-      expect(Foo.addBar(10), equals(110));
-      Foo.bar = 200;
-      expect(Foo.addBar(10), equals(210));
-      expect(topLevelMethod(10), equals(20));
-      expect(renamedTopLevelMethod(10), equals(20));
-    });
-  });
-}
diff --git a/tests/lib_2/html/js_typed_interop_side_cast_test.dart b/tests/lib_2/html/js_typed_interop_side_cast_test.dart
deleted file mode 100644
index 9c8dec5e207..00000000000
--- a/tests/lib_2/html/js_typed_interop_side_cast_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS()
-library js_typed_interop_anonymous2_test;
-
-import 'package:js/js.dart';
-import 'package:expect/minitest.dart';
-
-@JS()
-@anonymous
-class A {
-  external int get x;
-  external factory A({int x});
-}
-
-@JS()
-@anonymous
-class C {
-  external int get x;
-  external factory C({int x});
-}
-
-@JS()
-@anonymous
-class B {
-  external int get x;
-  external factory B({int x});
-}
-
-main() {
-  test('side-casts work for reachable types', () {
-    new C(x: 3); // make C reachable
-    dynamic a = new A(x: 3);
-    expect(a is C, isTrue);
-    C c = a;
-    expect(c.x, equals(3));
-  });
-
-  test('side-casts work for otherwise unreachable types', () {
-    dynamic a = new A(x: 3);
-    expect(a is B, isTrue);
-  });
-}
diff --git a/tests/lib_2/html/js_typed_interop_test.dart b/tests/lib_2/html/js_typed_interop_test.dart
deleted file mode 100644
index 751ad0e3c17..00000000000
--- a/tests/lib_2/html/js_typed_interop_test.dart
+++ /dev/null
@@ -1,461 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS()
-library js_typed_interop_test;
-
-import 'dart:html';
-
-import 'package:js/js.dart';
-import 'package:expect/minitest.dart';
-
-_injectJs() {
-  document.body.append(new ScriptElement()
-    ..type = 'text/javascript'
-    ..innerHtml = r"""
-  "use strict";
-
-  var Foo = {
-    multiplyDefault2: function(a, b) {
-      if (arguments.length >= 2) return a *b;
-      return a * 2;
-    }
-  };
-
-  var foo = {
-    x: 3,
-    z: 40, // Not specified in typed Dart API so should fail in checked mode.
-    multiplyByX: function(arg) { return arg * this.x; },
-    // This function can be torn off without having to bind this.
-    multiplyBy2: function(arg) { return arg * 2; },
-    multiplyDefault2Function: function(a, b) {
-      if (arguments.length >= 2) return a * b;
-      return a * 2;
-    },
-    callClosureWithArg1: function(closure, arg) {
-      return closure(arg);
-    },
-    callClosureWithArg2: function(closure, arg1, arg2) {
-      return closure(arg1, arg2);
-    },
-    callClosureWithArgAndThis: function(closure, arg) {
-      return closure.apply(this, [arg]);
-    },
-
-    getBar: function() {
-      return bar;
-    }
-  };
-
-  var foob = {
-    x: 8,
-    y: "why",
-    multiplyByX: function(arg) { return arg * this.x; }
-  };
-
-  var bar = {
-    x: "foo",
-    multiplyByX: true,
-    getFoo: function() {
-      return foo;
-    }
-  };
-
-  function ClassWithConstructor(a, b) {
-    this.a = a;
-    this.b = b;
-  };
-
-  ClassWithConstructor.prototype = {
-    getA: function() { return this.a;}
-  };
-
-  var list = ["a", "b", "c", foo, bar];
-
-  function returnNumArgs() { return arguments.length; };
-  function returnLastArg() { return arguments[arguments.length-1]; };
-
-  function confuse(obj) { return obj; }
-
-  function isUndefined(obj) { return obj === void 0; }
-
-  function StringWrapper(str) {
-    this.str = str;
-  }
-  StringWrapper.prototype = {
-    charCodeAt: function(index) {
-      return this.str.charCodeAt(index);
-    }
-  };
-  function getCanvasContext() {
-    return document.createElement('canvas').getContext('2d');
-  }
-  window.windowProperty = 42;
-  document.documentProperty = 45;
-""");
-}
-
-class RegularClass {
-  factory RegularClass(a) {
-    return new RegularClass.fooConstructor(a);
-  }
-  RegularClass.fooConstructor(this.a);
-  var a;
-}
-
-@JS()
-class ClassWithConstructor {
-  external ClassWithConstructor(aParam, bParam);
-  external getA();
-  external get a;
-  external get b;
-}
-
-@JS('ClassWithConstructor')
-class ClassWithFactory {
-  external factory ClassWithFactory(aParam, bParam);
-  external getA();
-  external get a;
-  external get b;
-}
-
-typedef num MultiplyWithDefault(num a, [num b]);
-
-@JS()
-@anonymous
-class Foo {
-  external int get x;
-  external set x(int v);
-  external num multiplyByX(num y);
-  external num multiplyBy2(num y);
-  external MultiplyWithDefault get multiplyDefault2Function;
-
-  external callClosureWithArgAndThis(Function closure, arg);
-  external callClosureWithArg1(Function closure, arg1);
-  external callClosureWithArg2(Function closure, arg1, arg2);
-  external Bar getBar();
-
-  external static num multiplyDefault2(num a, [num b]);
-}
-
-@anonymous
-@JS()
-class ExampleLiteral {
-  external factory ExampleLiteral({int x, String y, num z});
-
-  external int get x;
-  external String get y;
-  external num get z;
-}
-
-@anonymous
-@JS()
-class EmptyLiteral {
-  external factory EmptyLiteral();
-}
-
-@JS('Foob')
-class Foob extends Foo {
-  external String get y;
-}
-
-@JS('Bar')
-class Bar {
-  external String get x;
-  external bool get multiplyByX;
-  external Foo getFoo();
-}
-
-// No @JS is required for these external methods as the library is
-// annotated with Js.
-external Foo get foo;
-external Foob get foob;
-external Bar get bar;
-external Object get list;
-
-addWithDefault(a, [b = 100]) => a + b;
-
-external Function get returnNumArgs;
-external Function get returnLastArg;
-
-const STRINGIFY_LOCATION = "JSON.stringify";
-@JS(STRINGIFY_LOCATION)
-external String stringify(obj);
-
-@JS()
-class StringWrapper {
-  external StringWrapper(String str);
-  external int charCodeAt(int i);
-}
-
-// Defeat JS type inference by calling through JavaScript interop.
-@JS()
-external confuse(obj);
-
-@JS()
-external isUndefined(obj);
-
-@JS()
-external CanvasRenderingContext2D getCanvasContext();
-
-@JS('window.window.document.documentProperty')
-external num get propertyOnDocument;
-
-@JS('window.self.window.window.windowProperty')
-external num get propertyOnWindow;
-
-class DartClassWithNullField {
-  int x;
-}
-
-main() {
-  _injectJs();
-
-  group('object literal', () {
-    test('simple', () {
-      var l = new ExampleLiteral(x: 3, y: "foo");
-      expect(l.x, equals(3));
-      expect(l.y, equals("foo"));
-      expect(l.z, isNull);
-      expect(stringify(l), equals('{"x":3,"y":"foo"}'));
-      var l2 = new ExampleLiteral(y: "foo", x: 3);
-      expect(l2.x, equals(l.x));
-      expect(l2.y, equals(l.y));
-      l = new ExampleLiteral(z: 100);
-      expect(l.x, isNull);
-      expect(l.y, isNull);
-      expect(l.z, equals(100));
-      expect(stringify(l), equals('{"z":100}'));
-    });
-
-    test('empty', () {
-      var l = new EmptyLiteral();
-      expect(stringify(l), equals('{}'));
-    });
-  });
-
-  group('constructor', () {
-    test('simple', () {
-      var o = new ClassWithConstructor("foo", "bar");
-      expect(o.a, equals("foo"));
-      expect(o.b, equals("bar"));
-      expect(o.getA(), equals("foo"));
-    });
-
-    test('external factory', () {
-      var o = new ClassWithFactory("foo", "bar");
-      expect(o.a, equals("foo"));
-      expect(o.b, equals("bar"));
-      expect(o.getA(), equals("foo"));
-    });
-  });
-
-  group('property', () {
-    test('get', () {
-      expect(foo.x, equals(3));
-      expect(foob.x, equals(8));
-      expect(foob.y, equals("why"));
-
-      // Exists in JS but not in API.
-      // TODO(29419): add back this line once the appropriate metadata is
-      // tracked for anonymous JS classes (DARTBUG.
-      // expect(() => (foo as dynamic).zSomeInvalidName, throws);
-      expect(bar.multiplyByX, isTrue);
-    });
-    test('set', () {
-      foo.x = 42;
-      expect(foo.x, equals(42));
-      // Property tagged as read only in typed API.
-      // TODO(29419): add back this line once the appropriate metadata is
-      // tracked for anonymous JS classes.
-      // expect(() => (foob as dynamic).y = "bla", throws);
-      // expect(() => (foo as dynamic).unknownName = 42, throws);
-    });
-  });
-
-  group('method', () {
-    test('call', () {
-      foo.x = 100;
-      expect(foo.multiplyByX(4), equals(400));
-      foob.x = 10;
-      expect(foob.multiplyByX(4), equals(40));
-    });
-
-    test('tearoff', () {
-      foo.x = 10;
-      Function multiplyBy2 = foo.multiplyBy2;
-      expect(multiplyBy2(5), equals(10));
-      foo.x = 73;
-      Function multiplyByX = foo.multiplyByX;
-      // Tearing off a JS closure doesn't bind this.
-      // You will need to use the new method tearoff syntax to bind this.
-      // Invoking will trigger an error throwing because "this is undefined".
-      expect(() => multiplyByX(4), throws);
-
-      MultiplyWithDefault multiplyWithDefault = foo.multiplyDefault2Function;
-      expect(multiplyWithDefault(6, 6), equals(36));
-      expect(multiplyWithDefault(6), equals(12));
-      Function untypedFunction = foo.multiplyDefault2Function;
-      // Calling with extra bogus arguments has no impact for JavaScript
-      // methods.
-      expect(untypedFunction(6, 6, "ignored", "ignored"), equals(36));
-      expect(
-          untypedFunction(6, 6, "ignored", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-              0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
-          equals(36));
-      // Calling a JavaScript method with too few arguments is also fine and
-      // defaults to JavaScript behavior of setting all unspecified arguments
-      // to undefined resulting in multiplying undefined by 2 == NAN.
-      expect(untypedFunction().toString(), equals(double.nan.toString()));
-    });
-  });
-
-  group('static_method_call', () {
-    test('call directly from dart', () {
-      expect(Foo.multiplyDefault2(6, 7), equals(42));
-      expect(Foo.multiplyDefault2(6), equals(12));
-    });
-  });
-
-  // Note: these extra groups are added to be able to mark each test
-  // individually in status files. This should be split as separate test files.
-  group('static_method_tearoff_1', () {
-    test('call tearoff from dart', () {
-      MultiplyWithDefault tearOffMethod = Foo.multiplyDefault2;
-      expect(tearOffMethod(6, 6), equals(36));
-    });
-  });
-
-  group('static_method_tearoff_2', () {
-    test('call tearoff from dart', () {
-      MultiplyWithDefault tearOffMethod = Foo.multiplyDefault2;
-      expect(tearOffMethod(6), equals(12));
-    });
-  });
-
-  group('closure', () {
-    test('call from js', () {
-      localClosure(x) => x * 10;
-      var wrappedLocalClosure = allowInterop(localClosure);
-      var wrappedLocalClosure2 = allowInterop(localClosure);
-      expect(identical(wrappedLocalClosure2, wrappedLocalClosure), isTrue);
-      expect(foo.callClosureWithArg1(wrappedLocalClosure, 10), equals(100));
-      expect(foo.callClosureWithArg1(wrappedLocalClosure, "a"),
-          equals("aaaaaaaaaa"));
-      expect(foo.callClosureWithArg1(allowInterop(addWithDefault), 10),
-          equals(110));
-      expect(foo.callClosureWithArg2(allowInterop(addWithDefault), 10, 20),
-          equals(30));
-      addThisXAndArg(Foo that, int arg) {
-        return foo.x + arg;
-      }
-
-      dynamic wrappedCaptureThisClosure =
-          allowInteropCaptureThis(addThisXAndArg);
-      expect(wrappedCaptureThisClosure is Function, isTrue);
-      expect(wrappedCaptureThisClosure is Map, isFalse);
-      expect(wrappedCaptureThisClosure is Object, isTrue);
-      foo.x = 20;
-      expect(foo.callClosureWithArgAndThis(wrappedCaptureThisClosure, 10),
-          equals(30));
-      foo.x = 50;
-      expect(foo.callClosureWithArgAndThis(wrappedCaptureThisClosure, 10),
-          equals(60));
-      expect(
-          identical(allowInteropCaptureThis(addThisXAndArg),
-              wrappedCaptureThisClosure),
-          isTrue);
-
-      ExampleLiteral addXValues(that, ExampleLiteral arg) {
-        return new ExampleLiteral(x: that.x + arg.x);
-      }
-
-      // Check to make sure returning a JavaScript value from a Dart closure
-      // works as expected.
-      expect(
-          foo
-              .callClosureWithArg2(allowInterop(addXValues),
-                  new ExampleLiteral(x: 20), new ExampleLiteral(x: 10))
-              .x,
-          equals(30));
-
-      foo.x = 50;
-      expect(
-          foo
-              .callClosureWithArgAndThis(allowInteropCaptureThis(addXValues),
-                  new ExampleLiteral(x: 10))
-              .x,
-          equals(60));
-    });
-
-    test('call from dart', () {
-      var returnNumArgsFn = returnNumArgs;
-      var returnLastArgFn = returnLastArg;
-      expect(returnNumArgsFn(), equals(0));
-      expect(returnNumArgsFn("a", "b", "c"), equals(3));
-      expect(returnNumArgsFn("a", "b", "c", null, null), equals(5));
-      expect(returnNumArgsFn(1, 2, 3, 4, 5, 6, null), equals(7));
-      expect(returnNumArgsFn(1, 2, 3, 4, 5, 6, 7, 8), equals(8));
-      expect(returnLastArgFn(1, 2, "foo"), equals("foo"));
-      expect(returnLastArgFn(1, 2, 3, 4, 5, 6, "foo"), equals("foo"));
-    });
-  });
-
-  group('chain calls', () {
-    test("method calls", () {
-      // In dart2js make sure we still use interceptors when making nested
-      // calls to objects.
-      var bar = foo.getBar().getFoo().getBar().getFoo().getBar();
-      expect(bar.x, equals("foo"));
-    });
-  });
-
-  group('avoid leaks on dart:core', () {
-    test('String', () {
-      var s = confuse('Hello');
-      var stringWrapper = confuse(new StringWrapper('Hello'));
-      // Make sure we don't allow calling JavaScript methods on String.
-      expect(() => s.charCodeAt(0), throws);
-      expect(stringWrapper.charCodeAt(0), equals(72));
-    });
-  });
-
-  group('type check', () {
-    test('js interfaces', () {
-      // Is checks return true for all anonymous JS interfaces.
-      dynamic dartObject = new Object();
-      expect(foo is Foo, isTrue);
-      expect(foo is ExampleLiteral, isTrue);
-
-      expect(dartObject is Foo, isFalse);
-      expect(dartObject is ExampleLiteral, isFalse);
-
-      expect(list is List, isTrue);
-
-      // We do know at runtime whether something is a JsArray or not.
-      expect(foo is List, isFalse);
-    });
-
-    test('dart interfaces', () {
-      expect(foo is Function, isFalse);
-      expect(list is List, isTrue);
-    });
-  });
-
-  group('html', () {
-    test('return html type', () {
-      expect(getCanvasContext() is CanvasRenderingContext2D, isTrue);
-    });
-    test('js path contains html types', () {
-      expect(propertyOnWindow, equals(42));
-      expect(propertyOnDocument, equals(45));
-    });
-  });
-
-  test('Dart field is null instead of undefined', () {
-    expect(isUndefined(new DartClassWithNullField().x), false);
-  });
-}
diff --git a/tests/lib_2/html/js_typed_interop_type1_test.dart b/tests/lib_2/html/js_typed_interop_type1_test.dart
deleted file mode 100644
index 6cab4aa54f1..00000000000
--- a/tests/lib_2/html/js_typed_interop_type1_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-
-// @dart = 2.9
-@JS()
-library js_typed_interop_type1_test;
-
-import 'dart:html';
-import 'package:js/js.dart';
-import 'package:expect/expect.dart';
-
-@JS()
-class A {
-  external get foo;
-
-  external A(var foo);
-}
-
-class F {
-  final foo;
-
-  F(this.foo);
-}
-
-@pragma('dart2js:noInline')
-testA(A o) {
-  return o.foo;
-}
-
-@pragma('dart2js:noInline')
-testF(F o) {
-  return o.foo;
-}
-
-_injectJs() {
-  document.body.append(new ScriptElement()
-    ..type = 'text/javascript'
-    ..innerHtml = r"""
-function A(foo) {
-  this.foo = foo;
-}
-""");
-}
-
-main() {
-  _injectJs();
-
-  var a = new A(1);
-  var f = new F(6);
-
-  Expect.equals(testA(a), 1);
-  Expect.equals(testF(f), 6);
-}
diff --git a/tests/lib_2/html/js_typed_interop_type2_test.dart b/tests/lib_2/html/js_typed_interop_type2_test.dart
deleted file mode 100644
index 85d49fd227a..00000000000
--- a/tests/lib_2/html/js_typed_interop_type2_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-
-// @dart = 2.9
-@JS()
-library js_typed_interop_type2_test;
-
-import 'dart:html';
-import 'package:js/js.dart';
-import 'package:expect/expect.dart';
-
-@JS()
-@anonymous
-class C {
-  final foo;
-
-  external factory C({foo});
-}
-
-@JS()
-@anonymous
-class D {
-  final foo;
-
-  external factory D({foo});
-}
-
-class F {
-  final foo;
-
-  F(this.foo);
-}
-
-@pragma('dart2js:noInline')
-testC(C o) {
-  return o.foo;
-}
-
-@pragma('dart2js:noInline')
-testF(F o) {
-  return o.foo;
-}
-
-main() {
-  dynamic d = new D(foo: 4);
-  var f = new F(6);
-  Expect.equals(testC(d), 4);
-  Expect.equals(testF(f), 6);
-}
diff --git a/tests/lib_2/html/js_typed_interop_type3_test.dart b/tests/lib_2/html/js_typed_interop_type3_test.dart
deleted file mode 100644
index 13dbb5740ea..00000000000
--- a/tests/lib_2/html/js_typed_interop_type3_test.dart
+++ /dev/null
@@ -1,79 +0,0 @@
-
-// @dart = 2.9
-@JS()
-library js_typed_interop_type3_test;
-
-import 'dart:html';
-import 'package:js/js.dart';
-import 'package:expect/expect.dart';
-
-@JS()
-class A {
-  external get foo;
-
-  external A(var foo);
-}
-
-@JS()
-@anonymous
-class C {
-  final foo;
-
-  external factory C({foo});
-}
-
-@JS()
-@anonymous
-class D {
-  final foo;
-
-  external factory D({foo});
-}
-
-class F {
-  final foo;
-
-  F(this.foo);
-}
-
-@pragma('dart2js:noInline')
-testA(A o) {
-  return o.foo;
-}
-
-@pragma('dart2js:noInline')
-testC(C o) {
-  return o.foo;
-}
-
-@pragma('dart2js:noInline')
-testD(D o) {
-  return o.foo;
-}
-
-@pragma('dart2js:noInline')
-testF(F o) {
-  return o.foo;
-}
-
-_injectJs() {
-  document.body.append(new ScriptElement()
-    ..type = 'text/javascript'
-    ..innerHtml = r"""
-function A(foo) {
-  this.foo = foo;
-}
-""");
-}
-
-main() {
-  _injectJs();
-
-  var a = new A(1);
-  dynamic d = new D(foo: 4);
-
-  Expect.equals(testA(a), 1); //# 01: ok
-  Expect.equals(testA(a), 1); //# 02: ok
-  Expect.equals(testA(d), 4);
-  Expect.equals(testD(d), 4); //# 02: continued
-}
diff --git a/tests/lib_2/html/js_typed_interop_type_test.dart b/tests/lib_2/html/js_typed_interop_type_test.dart
deleted file mode 100644
index 646b38eda4c..00000000000
--- a/tests/lib_2/html/js_typed_interop_type_test.dart
+++ /dev/null
@@ -1,163 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS()
-library js_typed_interop_type_test;
-
-import 'dart:html';
-import 'package:js/js.dart';
-import 'package:expect/expect.dart';
-
-@JS()
-class A {
-  var foo;
-
-  external A(var foo);
-}
-
-@JS()
-class B {
-  var foo;
-
-  external B(var foo);
-}
-
-@JS()
-@anonymous
-class C {
-  final foo;
-
-  external factory C({foo});
-}
-
-@JS()
-@anonymous
-class D {
-  final foo;
-
-  external factory D({foo});
-}
-
-class E {
-  final foo;
-
-  E(this.foo);
-}
-
-class F {
-  final foo;
-
-  F(this.foo);
-}
-
-@pragma('dart2js:noInline')
-testA(A o) {
-  return o.foo;
-}
-
-@pragma('dart2js:noInline')
-testB(B o) {
-  return o.foo;
-}
-
-@pragma('dart2js:noInline')
-testC(C o) {
-  return o.foo;
-}
-
-@pragma('dart2js:noInline')
-testD(D o) {
-  return o.foo;
-}
-
-@pragma('dart2js:noInline')
-testE(E o) {
-  return o.foo;
-}
-
-@pragma('dart2js:noInline')
-testF(F o) {
-  return o.foo;
-}
-
-_injectJs() {
-  document.body.append(new ScriptElement()
-    ..type = 'text/javascript'
-    ..innerHtml = r"""
-function A(foo) {
-  this.foo = foo;
-}
-
-function B(foo) {
-  this.foo = foo;
-}
-""");
-}
-
-void expectValueOrTypeError(f(), value) {
-  try {
-    dynamic i = 0;
-    // TODO(rnystrom): Revisit this now that checked mode is gone in 2.0.
-    String s = i; // Test for checked mode.
-    Expect.equals(f(), value);
-  } on TypeError catch (error) {
-    Expect.throwsTypeError(f);
-  }
-}
-
-main() {
-  _injectJs();
-
-  dynamic a = new A(1);
-  dynamic b = new B(2);
-  dynamic c = new C(foo: 3);
-  dynamic d = new D(foo: 4);
-  dynamic e = new E(5);
-  dynamic f = new F(6);
-
-  Expect.equals(testA(a), 1);
-  Expect.equals(testB(b), 2);
-  Expect.equals(testA(b), 2);
-  Expect.equals(testA(c), 3);
-  Expect.equals(testA(d), 4);
-  expectValueOrTypeError(() => testA(e), 5);
-  expectValueOrTypeError(() => testA(f), 6);
-
-  Expect.equals(testB(a), 1);
-  Expect.equals(testB(b), 2);
-  Expect.equals(testB(c), 3);
-  Expect.equals(testB(d), 4);
-  expectValueOrTypeError(() => testB(e), 5);
-  expectValueOrTypeError(() => testB(f), 6);
-
-  Expect.equals(testC(a), 1);
-  Expect.equals(testC(b), 2);
-  Expect.equals(testC(c), 3);
-  Expect.equals(testC(d), 4);
-  expectValueOrTypeError(() => testC(e), 5);
-  expectValueOrTypeError(() => testC(f), 6);
-
-  Expect.equals(testD(a), 1);
-  Expect.equals(testD(b), 2);
-  Expect.equals(testD(c), 3);
-  Expect.equals(testD(d), 4);
-  expectValueOrTypeError(() => testD(e), 5);
-  expectValueOrTypeError(() => testD(f), 6);
-
-  expectValueOrTypeError(() => testE(a), 1);
-  expectValueOrTypeError(() => testE(b), 2);
-  expectValueOrTypeError(() => testE(c), 3);
-  expectValueOrTypeError(() => testE(d), 4);
-  Expect.equals(testE(e), 5);
-  expectValueOrTypeError(() => testE(f), 6);
-
-  expectValueOrTypeError(() => testF(a), 1);
-  expectValueOrTypeError(() => testF(b), 2);
-  expectValueOrTypeError(() => testF(c), 3);
-  expectValueOrTypeError(() => testF(d), 4);
-  expectValueOrTypeError(() => testF(e), 5);
-  Expect.equals(testF(f), 6);
-}
diff --git a/tests/lib_2/html/js_typed_interop_window_property_test.dart b/tests/lib_2/html/js_typed_interop_window_property_test.dart
deleted file mode 100644
index f6770928d6b..00000000000
--- a/tests/lib_2/html/js_typed_interop_window_property_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS()
-library js_typed_interop_window_property_test;
-
-import 'dart:html';
-
-import 'package:js/js.dart';
-import 'package:expect/expect.dart';
-
-// This is a regression test for https://github.com/dart-lang/sdk/issues/24817
-
-_injectJs() {
-  document.body.append(new ScriptElement()
-    ..type = 'text/javascript'
-    ..innerHtml = r"""
-  "use strict";
-
-  window.foo = [function() { return 42; }];
-""");
-}
-
-@JS("window.foo")
-external List<dynamic> get foo;
-
-main() {
-  _injectJs();
-
-  Expect.equals(foo[0](), 42);
-}
diff --git a/tests/lib_2/html/js_util_test.dart b/tests/lib_2/html/js_util_test.dart
deleted file mode 100644
index 41d50a9d04d..00000000000
--- a/tests/lib_2/html/js_util_test.dart
+++ /dev/null
@@ -1,92 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests the functionality of js_util with HTML objects.
-
-@JS()
-library js_util_test;
-
-import 'dart:html';
-
-import 'package:js/js.dart';
-import 'package:js/js_util.dart' as js_util;
-import 'package:expect/minitest.dart';
-
-@JS()
-external void eval(String code);
-
-@JS('Node')
-external get JSNodeType;
-
-@JS('Element')
-external get JSElementType;
-
-@JS('Text')
-external get JSTextType;
-
-@JS('HTMLCanvasElement')
-external get JSHtmlCanvasElementType;
-
-@JS()
-class Foo {
-  external Foo();
-}
-
-main() {
-  eval(r""" function Foo() {} """);
-
-  test('hasProperty', () {
-    var textElement = new Text('foo');
-    expect(js_util.hasProperty(textElement, 'data'), isTrue);
-  });
-
-  test('getProperty', () {
-    var textElement = new Text('foo');
-    expect(js_util.getProperty(textElement, 'data'), equals('foo'));
-  });
-
-  test('setProperty', () {
-    var textElement = new Text('foo');
-    js_util.setProperty(textElement, 'data', 'bar');
-    expect(textElement.text, equals('bar'));
-  });
-
-  test('callMethod', () {
-    var canvas = new CanvasElement();
-    expect(
-        identical(canvas.getContext('2d'),
-            js_util.callMethod(canvas, 'getContext', ['2d'])),
-        isTrue);
-  });
-
-  test('instanceof', () {
-    var canvas = new Element.tag('canvas');
-    expect(js_util.instanceof(canvas, JSNodeType), isTrue);
-    expect(js_util.instanceof(canvas, JSTextType), isFalse);
-    expect(js_util.instanceof(canvas, JSElementType), isTrue);
-    expect(js_util.instanceof(canvas, JSHtmlCanvasElementType), isTrue);
-    var div = new Element.tag('div');
-    expect(js_util.instanceof(div, JSNodeType), isTrue);
-    expect(js_util.instanceof(div, JSTextType), isFalse);
-    expect(js_util.instanceof(div, JSElementType), isTrue);
-    expect(js_util.instanceof(div, JSHtmlCanvasElementType), isFalse);
-
-    var text = new Text('foo');
-    expect(js_util.instanceof(text, JSNodeType), isTrue);
-    expect(js_util.instanceof(text, JSTextType), isTrue);
-    expect(js_util.instanceof(text, JSElementType), isFalse);
-
-    var f = new Foo();
-    expect(js_util.instanceof(f, JSNodeType), isFalse);
-  });
-
-  test('callConstructor', () {
-    var textNode = js_util.callConstructor(JSTextType, ['foo']);
-    expect(js_util.instanceof(textNode, JSTextType), isTrue);
-    expect(textNode is Text, isTrue);
-    expect(textNode.text, equals('foo'));
-  });
-}
diff --git a/tests/lib_2/html/json_helper.dart b/tests/lib_2/html/json_helper.dart
deleted file mode 100644
index 28d15edacea..00000000000
--- a/tests/lib_2/html/json_helper.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS("JSON")
-library json_helper;
-
-import 'package:js/js.dart';
-
-external String stringify(object);
diff --git a/tests/lib_2/html/keyboard_event_test.dart b/tests/lib_2/html/keyboard_event_test.dart
deleted file mode 100644
index 319d2073646..00000000000
--- a/tests/lib_2/html/keyboard_event_test.dart
+++ /dev/null
@@ -1,119 +0,0 @@
-
-// @dart = 2.9
-library KeyboardEventTest;
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-// Test that we are correctly determining keyCode and charCode uniformly across
-// browsers.
-
-void testKeyboardEventConstructor() {
-  new KeyboardEvent('keyup');
-}
-
-void keydownHandlerTest(KeyEvent e) {
-  expect(e.charCode, 0);
-}
-
-void testKeys() {
-  var subscription =
-      KeyboardEventStream.onKeyDown(document.body).listen(keydownHandlerTest);
-  var subscription2 =
-      KeyEvent.keyDownEvent.forTarget(document.body).listen(keydownHandlerTest);
-  var subscription3 =
-      document.body.onKeyDown.listen((e) => print('regular listener'));
-  subscription.cancel();
-  subscription2.cancel();
-  subscription3.cancel();
-}
-
-void testConstructKeyEvent() {
-  int handlerCallCount = 0;
-  CustomStream<KeyEvent> stream =
-      KeyEvent.keyPressEvent.forTarget(document.body);
-  var subscription = stream.listen((keyEvent) {
-    expect(keyEvent.charCode, 97);
-    expect(keyEvent.keyCode, 65);
-    handlerCallCount++;
-  });
-  var k = new KeyEvent('keypress', keyCode: 65, charCode: 97);
-  stream.add(k);
-  subscription.cancel();
-  // Capital "A":
-  stream.add(new KeyEvent('keydown', keyCode: 16, charCode: 0));
-
-  subscription = stream.listen((keyEvent) {
-    expect(keyEvent.charCode, 65);
-    expect(keyEvent.keyCode, 65);
-    handlerCallCount++;
-  });
-  stream.add(new KeyEvent('keypress', keyCode: 65, charCode: 65));
-  subscription.cancel();
-
-  expect(handlerCallCount, 2);
-}
-
-void testKeyEventSequence() {
-  int handlerCallCount = 0;
-  // Press "?" by simulating "shift" and then the key that has "/" and "?" on
-  // it.
-  CustomStream<KeyEvent> streamDown =
-      KeyEvent.keyDownEvent.forTarget(document.body);
-  CustomStream<KeyEvent> streamPress =
-      KeyEvent.keyPressEvent.forTarget(document.body);
-  CustomStream<KeyEvent> streamUp =
-      KeyEvent.keyUpEvent.forTarget(document.body);
-
-  var subscription = streamDown.listen((keyEvent) {
-    expect(keyEvent.keyCode, predicate([16, 191].contains));
-    expect(keyEvent.charCode, 0);
-    handlerCallCount++;
-  });
-
-  var subscription2 = streamPress.listen((keyEvent) {
-    expect(keyEvent.keyCode, 23);
-    expect(keyEvent.charCode, 63);
-    handlerCallCount++;
-  });
-
-  var subscription3 = streamUp.listen((keyEvent) {
-    expect(keyEvent.keyCode, predicate([16, 191].contains));
-    expect(keyEvent.charCode, 0);
-    handlerCallCount++;
-  });
-
-  streamDown.add(new KeyEvent('keydown', keyCode: 16, charCode: 0));
-  streamDown.add(new KeyEvent('keydown', keyCode: 191, charCode: 0));
-
-  streamPress.add(new KeyEvent('keypress', keyCode: 23, charCode: 63));
-
-  streamUp.add(new KeyEvent('keyup', keyCode: 191, charCode: 0));
-  streamUp.add(new KeyEvent('keyup', keyCode: 16, charCode: 0));
-  subscription.cancel();
-  subscription2.cancel();
-  subscription3.cancel();
-
-  expect(handlerCallCount, 5);
-}
-
-void testKeyEventKeyboardEvent() {
-  int handlerCallCount = 0;
-  window.onKeyDown.listen((event) {
-    expect(event.keyCode, 16);
-    handlerCallCount++;
-  });
-  CustomStream<KeyEvent> streamDown =
-      KeyEvent.keyDownEvent.forTarget(document.body);
-  streamDown.add(new KeyEvent('keydown', keyCode: 16, charCode: 0));
-  expect(handlerCallCount, 1);
-}
-
-main() {
-  testKeyboardEventConstructor();
-  testKeys();
-  testConstructKeyEvent();
-  testKeyEventSequence();
-  testKeyEventKeyboardEvent();
-}
diff --git a/tests/lib_2/html/localstorage_test.dart b/tests/lib_2/html/localstorage_test.dart
deleted file mode 100644
index c3183d1c269..00000000000
--- a/tests/lib_2/html/localstorage_test.dart
+++ /dev/null
@@ -1,115 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  setUp(() {
-    window.localStorage['key1'] = 'val1';
-    window.localStorage['key2'] = 'val2';
-    window.localStorage['key3'] = 'val3';
-  });
-
-  tearDown(() {
-    window.localStorage.clear();
-  });
-
-  test('containsValue', () {
-    expect(window.localStorage.containsValue('does not exist'), isFalse);
-    expect(window.localStorage.containsValue('key1'), isFalse);
-    expect(window.localStorage.containsValue('val1'), isTrue);
-    expect(window.localStorage.containsValue('val3'), isTrue);
-  });
-
-  test('containsKey', () {
-    expect(window.localStorage.containsKey('does not exist'), isFalse);
-    expect(window.localStorage.containsKey('val1'), isFalse);
-    expect(window.localStorage.containsKey('key1'), isTrue);
-    expect(window.localStorage.containsKey('key3'), isTrue);
-  });
-
-  test('[]', () {
-    expect(window.localStorage['does not exist'], isNull);
-    expect(window.localStorage['key1'], 'val1');
-    expect(window.localStorage['key3'], 'val3');
-  });
-
-  test('[]=', () {
-    expect(window.localStorage['key4'], isNull);
-    window.localStorage['key4'] = 'val4';
-    expect(window.localStorage['key4'], 'val4');
-
-    expect(window.localStorage['key3'], 'val3');
-    window.localStorage['key3'] = 'val3-new';
-    expect(window.localStorage['key3'], 'val3-new');
-  });
-
-  test('putIfAbsent', () {
-    expect(window.localStorage['key4'], isNull);
-    expect(window.localStorage.putIfAbsent('key4', () => 'val4'), 'val4');
-    expect(window.localStorage['key4'], 'val4');
-
-    expect(window.localStorage['key3'], 'val3');
-    expect(
-        window.localStorage.putIfAbsent('key3', () {
-          fail('should not be called');
-          return 'unused';
-        }),
-        'val3');
-    expect(window.localStorage['key3'], 'val3');
-  });
-
-  test('remove', () {
-    expect(window.localStorage.remove('does not exist'), isNull);
-    expect(window.localStorage.remove('key3'), 'val3');
-    expect(window.localStorage, equals({'key1': 'val1', 'key2': 'val2'}));
-  });
-
-  test('clear', () {
-    window.localStorage.clear();
-    expect(window.localStorage, equals({}));
-  });
-
-  test('forEach', () {
-    var results = <String, String>{};
-    window.localStorage.forEach((k, v) {
-      results[k] = v;
-    });
-    expect(results, equals({'key1': 'val1', 'key2': 'val2', 'key3': 'val3'}));
-  });
-
-  test('getKeys', () {
-    expect(window.localStorage.keys.toList(),
-        unorderedEquals(['key1', 'key2', 'key3']));
-  });
-
-  test('getVals', () {
-    expect(window.localStorage.values.toList(),
-        unorderedEquals(['val1', 'val2', 'val3']));
-  });
-
-  test('getEntries', () {
-    var results = <String, String>{};
-    window.localStorage.entries.forEach((e) {
-      results[e.key] = e.value;
-    });
-    expect(results, equals({'key1': 'val1', 'key2': 'val2', 'key3': 'val3'}));
-  });
-
-  test('length', () {
-    expect(window.localStorage.length, 3);
-    window.localStorage.clear();
-    expect(window.localStorage.length, 0);
-  });
-
-  test('isEmpty', () {
-    expect(window.localStorage.isEmpty, isFalse);
-    window.localStorage.clear();
-    expect(window.localStorage.isEmpty, isTrue);
-  });
-}
diff --git a/tests/lib_2/html/location_test.dart b/tests/lib_2/html/location_test.dart
deleted file mode 100644
index dbadede06bf..00000000000
--- a/tests/lib_2/html/location_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  var isLocation = predicate((x) => x is Location, 'is a Location');
-
-  test('location hash', () {
-    final location = window.location;
-    expect(location, isLocation);
-
-    // The only navigation we dare try is hash.
-    location.hash = 'hello';
-    var h = location.hash;
-    expect(h, '#hello');
-  });
-
-  test('location.origin', () {
-    var origin = window.location.origin;
-
-    // We build up the origin from Uri, then make sure that it matches.
-    var uri = Uri.parse(window.location.href);
-    var reconstructedOrigin = '${uri.scheme}://${uri.host}';
-    if (uri.port != 0) {
-      reconstructedOrigin = '$reconstructedOrigin:${uri.port}';
-    }
-
-    expect(origin, reconstructedOrigin);
-  });
-}
diff --git a/tests/lib_2/html/media_stream_test.dart b/tests/lib_2/html/media_stream_test.dart
deleted file mode 100644
index f09f9d19a13..00000000000
--- a/tests/lib_2/html/media_stream_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  group('supported_media', () {
-    test('supported', () {
-      expect(MediaStream.supported, true);
-    });
-  });
-
-  group('supported_MediaStreamEvent', () {
-    test('supported', () {
-      expect(MediaStreamEvent.supported, true);
-    });
-  });
-
-  group('supported_MediaStreamTrackEvent', () {
-    test('supported', () {
-      expect(MediaStreamTrackEvent.supported, true);
-    });
-  });
-
-  group('constructors', () {
-    test('MediaStreamEvent', () {
-      var expectation = MediaStreamEvent.supported ? returnsNormally : throws;
-      expect(() {
-        var event = new Event.eventType('MediaStreamEvent', 'media');
-        expect(event is MediaStreamEvent, isTrue);
-      }, expectation);
-    });
-
-    test('MediaStreamTrackEvent', () {
-      var expectation =
-          MediaStreamTrackEvent.supported ? returnsNormally : throws;
-      expect(() {
-        var event = new Event.eventType('MediaStreamTrackEvent', 'media');
-        expect(event is MediaStreamTrackEvent, isTrue);
-      }, expectation);
-    });
-  });
-}
diff --git a/tests/lib_2/html/mediadevices_test.dart b/tests/lib_2/html/mediadevices_test.dart
deleted file mode 100644
index 51874f07f2a..00000000000
--- a/tests/lib_2/html/mediadevices_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-
-// @dart = 2.9
-import 'dart:async';
-import 'dart:html';
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-test() async {
-  var list = await window.navigator.mediaDevices.enumerateDevices();
-  Expect.isTrue(list is List<dynamic>, "Expected list to be List<dynamic>");
-}
-
-void main() {
-  asyncStart();
-  test().then((_) => asyncEnd());
-}
diff --git a/tests/lib_2/html/mediasource_test.dart b/tests/lib_2/html/mediasource_test.dart
deleted file mode 100644
index f6214f2f4d8..00000000000
--- a/tests/lib_2/html/mediasource_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-import 'dart:typed_data';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  var isMediaSource = predicate((x) => x is MediaSource, 'is a MediaSource');
-
-  group('supported', () {
-    test('supported', () {
-      expect(MediaSource.supported, true);
-    });
-  });
-
-  // TODO(alanknight): Actually exercise this, right now the tests are trivial.
-  group('functional', () {
-    var source;
-    if (MediaSource.supported) {
-      source = new MediaSource();
-    }
-
-    test('constructorTest', () {
-      if (MediaSource.supported) {
-        expect(source, isNotNull);
-        expect(source, isMediaSource);
-      }
-    });
-
-    test('media types', () {
-      if (MediaSource.supported) {
-        expect(MediaSource.isTypeSupported('text/html'), false);
-        expect(MediaSource.isTypeSupported('video/webm;codecs="vp8,vorbis"'),
-            true);
-      }
-    });
-  });
-}
diff --git a/tests/lib_2/html/message_channel_test.dart b/tests/lib_2/html/message_channel_test.dart
deleted file mode 100644
index 53a13db71d8..00000000000
--- a/tests/lib_2/html/message_channel_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() async {
-  var gotOnMessage = false;
-  var gotEventListener = false;
-
-  Completer completer = new Completer();
-
-  var channel = new MessageChannel();
-  channel.port1.postMessage("Tickle me.");
-
-  channel.port2.onMessage.listen((MessageEvent e) {
-    expect(e.data, "Tickle me.");
-    gotOnMessage = true;
-  });
-
-  channel.port2.addEventListener("message", (message) {
-    var msg = message as MessageEvent;
-    expect(msg.data, "Tickle me.");
-    gotEventListener = true;
-    completer.complete();
-  });
-
-  // Wait for the event listener.
-  await completer.future;
-
-  // Make sure both fired.
-  expect(gotOnMessage, true);
-  expect(gotEventListener, true);
-}
diff --git a/tests/lib_2/html/messageevent_test.dart b/tests/lib_2/html/messageevent_test.dart
deleted file mode 100644
index 1c8e38fd107..00000000000
--- a/tests/lib_2/html/messageevent_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('new MessageEvent', () {
-    final event = new MessageEvent('type',
-        cancelable: true,
-        data: 'data',
-        origin: 'origin',
-        lastEventId: 'lastEventId');
-
-    expect(event.type, equals('type'));
-    expect(event.bubbles, isFalse);
-    expect(event.cancelable, isTrue);
-    expect(event.data, equals('data'));
-    expect(event.origin, equals('origin'));
-    // IE allows setting this but just ignores it.
-    // expect(event.lastEventId, equals('lastEventId'));
-    expect(event.source, window);
-    // TODO(antonm): accessing ports is not supported yet.
-  });
-}
diff --git a/tests/lib_2/html/mouse_event_test.dart b/tests/lib_2/html/mouse_event_test.dart
deleted file mode 100644
index 975840c1efb..00000000000
--- a/tests/lib_2/html/mouse_event_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('relatedTarget', () {
-    var event = new MouseEvent('mouseout');
-    expect(event.relatedTarget, isNull);
-
-    event = new MouseEvent('mouseout', relatedTarget: document.body);
-    expect(event.relatedTarget, document.body);
-  });
-}
diff --git a/tests/lib_2/html/mutationobserver_test.dart b/tests/lib_2/html/mutationobserver_test.dart
deleted file mode 100644
index c731e097f82..00000000000
--- a/tests/lib_2/html/mutationobserver_test.dart
+++ /dev/null
@@ -1,123 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library mutationobserver_test;
-
-import 'dart:async';
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-// Due to https://code.google.com/p/chromium/issues/detail?id=329103
-// mutationObservers sometimes do not fire if the node being observed is GCed
-// so we keep around references to all nodes we have created mutation
-// observers for.
-var keepAlive = [];
-
-void testSupported() {
-  expect(MutationObserver.supported, true);
-}
-
-mutationCallback(Completer done, int count, expectation) {
-  final nodes = [];
-
-  callback(mutations, observer) {
-    for (MutationRecord mutation in mutations) {
-      for (Node node in mutation.addedNodes) {
-        nodes.add(node);
-      }
-    }
-    if (nodes.length >= count) {
-      expect(nodes.length, count);
-      expect(nodes, expectation);
-      done.complete();
-    }
-  }
-
-  // If it's not supported, don't block waiting for it.
-  if (!MutationObserver.supported) {
-    done.complete();
-    return (mutations, observer) {};
-  }
-
-  return callback;
-}
-
-void testEmptyOptionsIsSyntaxError(expectation) {
-  expect(() {
-    var mutationObserver = new MutationObserver((mutations, observer) {
-      expect(false, isTrue, reason: 'Should not be reached');
-    });
-    expect(() {
-      mutationObserver.observe(document);
-    }, throws);
-  }, expectation);
-}
-
-Future<Null> testDirectParallelOptionsNamed(expectation) {
-  final done = new Completer<Null>();
-  expect(() {
-    var container = new DivElement();
-    keepAlive.add(container);
-    var div1 = new DivElement();
-    var div2 = new DivElement();
-    var mutationObserver =
-        new MutationObserver(mutationCallback(done, 2, equals([div1, div2])));
-    mutationObserver.observe(container, childList: true);
-
-    container.append(div1);
-    container.append(div2);
-  }, expectation);
-  return done.future;
-}
-
-Future<Null> testDirectNestedOptionsNamed(expectation) {
-  final done = new Completer<Null>();
-  expect(() {
-    var container = new DivElement();
-    keepAlive.add(container);
-    var div1 = new DivElement();
-    var div2 = new DivElement();
-    var mutationObserver =
-        new MutationObserver(mutationCallback(done, 1, equals([div1])));
-    mutationObserver.observe(container, childList: true);
-
-    container.append(div1);
-    div1.append(div2);
-  }, expectation);
-  return done.future;
-}
-
-Future<Null> testSubtreeOptionsNamed(expectation) {
-  final done = new Completer<Null>();
-  expect(() {
-    var container = new DivElement();
-    keepAlive.add(container);
-    var div1 = new DivElement();
-    var div2 = new DivElement();
-    var mutationObserver =
-        new MutationObserver(mutationCallback(done, 2, equals([div1, div2])));
-    mutationObserver.observe(container, childList: true, subtree: true);
-
-    container.append(div1);
-    div1.append(div2);
-  }, expectation);
-  return done.future;
-}
-
-/**
- * Test suite for Mutation Observers. This is just a small set of sanity
- * checks, not a complete test suite.
- */
-main() async {
-  testSupported();
-
-  final expectation = MutationObserver.supported ? returnsNormally : throws;
-  testEmptyOptionsIsSyntaxError(expectation);
-  await testDirectParallelOptionsNamed(expectation);
-  await testDirectNestedOptionsNamed(expectation);
-  await testSubtreeOptionsNamed(expectation);
-}
diff --git a/tests/lib_2/html/navigator_test.dart b/tests/lib_2/html/navigator_test.dart
deleted file mode 100644
index 3bb3953308b..00000000000
--- a/tests/lib_2/html/navigator_test.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/expect.dart';
-
-main() {
-  Expect.isNotNull(window.navigator.language);
-}
diff --git a/tests/lib_2/html/node_test.dart b/tests/lib_2/html/node_test.dart
deleted file mode 100644
index d8f81051967..00000000000
--- a/tests/lib_2/html/node_test.dart
+++ /dev/null
@@ -1,343 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:svg' as svg;
-
-import 'package:expect/minitest.dart';
-
-Node makeNode() => new Element.tag('div');
-Element makeNodeWithChildren() =>
-    new Element.html("<div>Foo<br/><!--baz--></div>");
-
-void testUnsupported(String name, void f()) {
-  test(name, () {
-    expect(f, throwsUnsupportedError);
-  });
-}
-
-main() {
-  var isText = predicate((x) => x is Text, 'is a Text');
-  var isComment = predicate((x) => x is Comment, 'is a Comment');
-  var isBRElement = predicate((x) => x is BRElement, 'is a BRElement');
-  var isHRElement = predicate((x) => x is HRElement, 'is a HRElement');
-  var isNodeList = predicate((x) => x is List<Node>, 'is a List<Node>');
-  var isImageElement =
-      predicate((x) => x is ImageElement, 'is an ImageElement');
-  var isInputElement =
-      predicate((x) => x is InputElement, 'is an InputElement');
-
-  group('functional', () {
-    test('toString', () {
-      final nodes = makeNodeWithChildren();
-      // TODO(efortuna): Update this test when you have actual toString methods
-      // for the items in the node List as well.
-      expect(nodes.nodes.toString(), "[Foo, br, baz]");
-      final node = makeNode();
-      expect(node.nodes.toString(), '[]');
-    });
-
-    test('replaceWith', () {
-      final node = makeNodeWithChildren();
-      final subnode = node.nodes[1];
-      final out = subnode.replaceWith(new Text('Bar'));
-      expect(out, equals(subnode), reason: '#replaceWith should be chainable');
-      expect(node.nodes.length, 3);
-      expect(node.nodes[0], isText);
-      expect(node.nodes[0].text, 'Foo');
-      expect(node.nodes[1], isText);
-      expect(node.nodes[1].text, 'Bar');
-      expect(node.nodes[2], isComment);
-    });
-
-    test('append', () {
-      var node = makeNode();
-      node.append(new Element.tag('hr'));
-      expect(node.nodes.last, isHRElement);
-    });
-
-    test('remove', () {
-      final node = makeNodeWithChildren();
-      final subnode = node.nodes[1];
-      subnode.remove();
-      expect(node.nodes.length, 2);
-      expect(node.nodes[0], isText);
-      expect(node.nodes[1], isComment);
-    });
-
-    test('contains', () {
-      final Node node =
-          new Element.html("<div>Foo<span><div>Bar<div></span></div>");
-      // IE10 returns false for contains of nodes.
-      //expect(node.contains(node.nodes.first), isTrue);
-      expect(node.contains(node.nodes[1].nodes.first), isTrue);
-      expect(node.contains(new Text('Foo')), isFalse);
-    });
-
-    test('insertAllBefore', () {
-      var node = makeNodeWithChildren();
-      var b = new DivElement();
-      b.nodes.addAll([new HRElement(), new ImageElement(), new InputElement()]);
-      node.insertAllBefore(b.nodes, node.nodes[1]);
-      expect(node.nodes[0], isText);
-      expect(node.nodes[1], isHRElement);
-      expect(node.nodes[2], isImageElement);
-      expect(node.nodes[3], isInputElement);
-      expect(node.nodes[4], isBRElement);
-      expect(node.nodes[5], isComment);
-
-      var nodes = [new HRElement(), new ImageElement(), new InputElement()];
-      node.insertAllBefore(nodes, node.nodes[5]);
-
-      expect(node.nodes[0], isText);
-      expect(node.nodes[1], isHRElement);
-      expect(node.nodes[2], isImageElement);
-      expect(node.nodes[3], isInputElement);
-      expect(node.nodes[4], isBRElement);
-      expect(node.nodes[5], isHRElement);
-      expect(node.nodes[6], isImageElement);
-      expect(node.nodes[7], isInputElement);
-      expect(node.nodes[8], isComment);
-    });
-  });
-
-  group('nodes', () {
-    test('is a NodeList', () {
-      expect(makeNodeWithChildren().nodes, isNodeList);
-    });
-
-    test('indexer', () {
-      var node = new DivElement();
-      expect(() {
-        node.nodes[0];
-      }, throwsRangeError);
-
-      expect(() {
-        node.nodes[-1];
-      }, throwsRangeError);
-    });
-
-    test('first', () {
-      var node = makeNodeWithChildren();
-      expect(node.nodes.first, isText);
-
-      node = new DivElement();
-      expect(() {
-        node = node.nodes.first;
-      }, throwsStateError);
-    });
-
-    test('last', () {
-      var node = makeNodeWithChildren();
-      expect(node.nodes.last, isComment);
-    });
-
-    test('forEach', () {
-      var nodes = [];
-      var node = makeNodeWithChildren();
-      node.nodes.forEach((n) => nodes.add(n));
-      expect(nodes[0], isText);
-      expect(nodes[1], isBRElement);
-      expect(nodes[2], isComment);
-    });
-
-    test('where', () {
-      var filtered =
-          makeNodeWithChildren().nodes.where((n) => n is BRElement).toList();
-      expect(filtered.length, 1);
-      expect(filtered[0], isBRElement);
-      expect(filtered, isNodeList);
-    });
-
-    test('every', () {
-      var node = makeNodeWithChildren();
-      expect(node.nodes.every((n) => n is Node), isTrue);
-      expect(node.nodes.every((n) => n is Comment), isFalse);
-    });
-
-    test('any', () {
-      var node = makeNodeWithChildren();
-      expect(node.nodes.any((n) => n is Comment), isTrue);
-      expect(node.nodes.any((n) => n is svg.SvgElement), isFalse);
-    });
-
-    test('isEmpty', () {
-      expect(makeNode().nodes.isEmpty, isTrue);
-      expect(makeNodeWithChildren().nodes.isEmpty, isFalse);
-    });
-
-    test('length', () {
-      expect(makeNode().nodes.length, 0);
-      expect(makeNodeWithChildren().nodes.length, 3);
-    });
-
-    test('[]', () {
-      var node = makeNodeWithChildren();
-      expect(node.nodes[0], isText);
-      expect(node.nodes[1], isBRElement);
-      expect(node.nodes[2], isComment);
-    });
-
-    test('[]=', () {
-      var node = makeNodeWithChildren();
-      node.nodes[1] = new Element.tag('hr');
-      expect(node.nodes[0], isText);
-      expect(node.nodes[1], isHRElement);
-      expect(node.nodes[2], isComment);
-    });
-
-    test('add', () {
-      var node = makeNode();
-      node.nodes.add(new Element.tag('hr'));
-      expect(node.nodes.last, isHRElement);
-    });
-
-    test('iterator', () {
-      var nodes = [];
-      var node = makeNodeWithChildren();
-      for (var subnode in node.nodes) {
-        nodes.add(subnode);
-      }
-      expect(nodes[0], isText);
-      expect(nodes[1], isBRElement);
-      expect(nodes[2], isComment);
-    });
-
-    test('addAll', () {
-      var node = makeNodeWithChildren();
-      node.nodes.addAll([
-        new Element.tag('hr'),
-        new Element.tag('img'),
-        new Element.tag('input')
-      ]);
-      expect(node.nodes[0], isText);
-      expect(node.nodes[1], isBRElement);
-      expect(node.nodes[2], isComment);
-      expect(node.nodes[3], isHRElement);
-      expect(node.nodes[4], isImageElement);
-      expect(node.nodes[5], isInputElement);
-
-      var a = makeNodeWithChildren();
-      var b = makeNodeWithChildren();
-      var childrenLength = a.children.length + b.children.length;
-      var nodesLength = a.nodes.length + b.nodes.length;
-
-      a.children.addAll(b.children);
-      expect(b.children.length, 0);
-      expect(a.children.length, childrenLength);
-
-      b.nodes.addAll(a.children);
-      expect(a.children.length, 0);
-      expect(b.children.length, childrenLength);
-
-      a.nodes.addAll(b.nodes);
-      expect(b.nodes.length, 0);
-      expect(a.nodes.length, nodesLength);
-    });
-
-    test('insert', () {
-      var node = new DivElement();
-      node.nodes.insert(0, new BRElement());
-      expect(node.nodes[0], isBRElement);
-      node.nodes.insert(0, new HRElement());
-      expect(node.nodes[0], isHRElement);
-      node.nodes.insert(1, new ImageElement());
-      expect(node.nodes[1], isImageElement);
-      node.nodes.insert(node.nodes.length, new InputElement());
-      expect(node.nodes.last, isInputElement);
-    });
-
-    test('clear', () {
-      var node = makeNodeWithChildren();
-      node.nodes.clear();
-      expect(node.nodes, []);
-    });
-
-    test('removeLast', () {
-      var node = makeNodeWithChildren();
-      expect(node.nodes.removeLast(), isComment);
-      expect(node.nodes.length, 2);
-      expect(node.nodes.removeLast(), isBRElement);
-      expect(node.nodes.length, 1);
-    });
-
-    test('getRange', () {
-      var items = makeNodeWithChildren().nodes.getRange(0, 1);
-      expect(items.length, 1);
-      expect(items.first, isText);
-    });
-
-    test('sublist', () {
-      var node = makeNodeWithChildren();
-      expect(node.nodes.sublist(1, 3), isNodeList);
-    });
-
-    test('insertAll', () {
-      var node = makeNodeWithChildren();
-      var b = new DivElement();
-      b.nodes.addAll([new HRElement(), new ImageElement(), new InputElement()]);
-      node.nodes.insertAll(1, b.nodes);
-      expect(node.nodes[0], isText);
-      expect(node.nodes[1], isHRElement);
-      expect(node.nodes[2], isImageElement);
-      expect(node.nodes[3], isInputElement);
-      expect(node.nodes[4], isBRElement);
-      expect(node.nodes[5], isComment);
-
-      var nodes = [new HRElement(), new ImageElement(), new InputElement()];
-      node.nodes.insertAll(5, nodes);
-
-      expect(node.nodes[0], isText);
-      expect(node.nodes[1], isHRElement);
-      expect(node.nodes[2], isImageElement);
-      expect(node.nodes[3], isInputElement);
-      expect(node.nodes[4], isBRElement);
-      expect(node.nodes[5], isHRElement);
-      expect(node.nodes[6], isImageElement);
-      expect(node.nodes[7], isInputElement);
-      expect(node.nodes[8], isComment);
-
-      var d = new DivElement();
-      var ns = d.nodes;
-      // `insertAll` should work when positioned at end.
-      ns.insertAll(ns.length, [new HRElement()]);
-      expect(ns.length, 1);
-      expect(ns[0], isHRElement);
-    });
-
-    testUnsupported('removeRange', () {
-      makeNodeWithChildren().nodes.removeRange(0, 1);
-    });
-
-    testUnsupported('replaceRange', () {
-      makeNodeWithChildren().nodes.replaceRange(0, 1, [new InputElement()]);
-    });
-
-    testUnsupported('fillRange', () {
-      makeNodeWithChildren().nodes.fillRange(0, 1, null);
-    });
-
-    testUnsupported('setAll', () {
-      makeNodeWithChildren().nodes.setAll(0, [new InputElement()]);
-    });
-  });
-
-  group('iterating', () {
-    test('NodeIterator', () {
-      var root = makeNodeWithChildren();
-      var nodeIterator = new NodeIterator(root, NodeFilter.SHOW_COMMENT);
-      expect(nodeIterator.nextNode(), isComment);
-      expect(nodeIterator.nextNode(), isNull);
-    });
-
-    test('TreeWalker', () {
-      var root = makeNodeWithChildren();
-      var treeWalker = new TreeWalker(root, NodeFilter.SHOW_COMMENT);
-      expect(treeWalker.nextNode(), isComment);
-      expect(treeWalker.nextNode(), isNull);
-    });
-  });
-}
diff --git a/tests/lib_2/html/node_validator_important_if_you_suppress_make_the_bug_critical_test.dart b/tests/lib_2/html/node_validator_important_if_you_suppress_make_the_bug_critical_test.dart
deleted file mode 100644
index c34597b1a00..00000000000
--- a/tests/lib_2/html/node_validator_important_if_you_suppress_make_the_bug_critical_test.dart
+++ /dev/null
@@ -1,525 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// This tests HTML validation and sanitization, which is very important
-/// for prevent XSS or other attacks. If you suppress this, or parts of it
-/// please make it a critical bug and bring it to the attention of the
-/// dart:html maintainers.
-library node_validator_test;
-
-import 'dart:html';
-import 'dart:svg' as svg;
-
-import 'package:expect/minitest.dart';
-
-import 'utils.dart';
-
-void validateHtml(String html, String reference, NodeValidator validator) {
-  var a = document.body.createFragment(html, validator: validator);
-  var b = document.body
-      .createFragment(reference, treeSanitizer: NodeTreeSanitizer.trusted);
-
-  // Prevent a false pass when both the html and the reference both get entirely
-  // deleted, which is technically a match, but unlikely to be what we meant.
-  if (reference != '') {
-    expect(b.childNodes.length > 0, isTrue);
-  }
-  validateNodeTree(a, b);
-}
-
-class RecordingUriValidator implements UriPolicy {
-  final List<String> calls = <String>[];
-
-  bool allowsUri(String uri) {
-    calls.add('$uri');
-    return false;
-  }
-
-  void reset() {
-    calls.clear();
-  }
-}
-
-void testHtml(String name, NodeValidator validator, String html,
-    [String reference]) {
-  test(name, () {
-    if (reference == null) {
-      reference = html;
-    }
-
-    validateHtml(html, reference, validator);
-  });
-}
-
-main() {
-  group('DOM_sanitization', () {
-    var validator = new NodeValidatorBuilder.common();
-
-    testHtml('allows simple constructs', validator,
-        '<div class="baz">something</div>');
-
-    testHtml('blocks unknown attributes', validator,
-        '<div foo="baz">something</div>', '<div>something</div>');
-
-    testHtml('blocks custom element', validator,
-        '<x-my-element>something</x-my-element>', '');
-
-    testHtml('blocks custom is element', validator,
-        '<div is="x-my-element">something</div>', '');
-
-    testHtml(
-        'blocks body elements', validator, '<body background="s"></body>', '');
-
-    testHtml(
-        'allows select elements',
-        validator,
-        '<select>'
-        '<option>a</option>'
-        '</select>');
-
-    testHtml('blocks sequential script elements', validator,
-        '<div><script></script><script></script></div>', '<div></div>');
-
-    testHtml('blocks inline styles', validator,
-        '<div style="background: red"></div>', '<div></div>');
-
-    testHtml('blocks namespaced attributes', validator,
-        '<div ns:foo="foo"></div>', '<div></div>');
-
-    testHtml('blocks namespaced common attributes', validator,
-        '<div ns:class="foo"></div>', '<div></div>');
-
-    testHtml('blocks namespaced common elements', validator,
-        '<ns:div></ns:div>', '');
-
-    testHtml('allows CDATA sections', validator,
-        '<span>![CDATA[ some text ]]></span>');
-
-    testHtml('backquotes not removed', validator,
-        '<img src="dice.png" alt="``onload=xss()" />');
-
-    testHtml('0x3000 not removed', validator,
-        '<a href="&#x3000;javascript:alert(1)">CLICKME</a>');
-
-    test('sanitizes template contents', () {
-      if (!TemplateElement.supported) return;
-
-      var html = '<template>'
-          '<div></div>'
-          '<script></script>'
-          '<img src="http://example.com/foo"/>'
-          '</template>';
-
-      var fragment = document.body.createFragment(html, validator: validator);
-      var template = fragment.nodes.single as TemplateElement;
-
-      var expectedContent = document.body.createFragment('<div></div>'
-          '<img/>');
-
-      validateNodeTree(template.content, expectedContent);
-    });
-
-    test("appendHtml is sanitized", () {
-      var html = '<body background="s"></body><div></div>';
-      document.body.appendHtml('<div id="stuff"></div>');
-      var stuff = document.querySelector("#stuff");
-      stuff.appendHtml(html);
-      expect(stuff.childNodes.length, 1);
-      stuff.remove();
-    });
-
-    test("documentFragment.appendHtml is sanitized", () {
-      var html = '<div id="things></div>';
-      var fragment = new DocumentFragment.html(html);
-      fragment.appendHtml('<div id="bad"><script></script></div>');
-      expect(fragment.childNodes.length, 1);
-      var child = fragment.childNodes[0] as Element;
-      expect(child.id, "bad");
-      expect(child.childNodes.length, 0);
-    });
-
-    testHtml(
-        "sanitizes embed",
-        validator,
-        "<div><embed src='' type='application/x-shockwave-flash'></embed></div>",
-        "<div></div>");
-  });
-
-  group('URI_sanitization', () {
-    var recorder = new RecordingUriValidator();
-    var validator = new NodeValidatorBuilder()..allowHtml5(uriPolicy: recorder);
-
-    checkUriPolicyCalls(String name, String html, String reference,
-        List<String> expectedCalls) {
-      test(name, () {
-        recorder.reset();
-
-        validateHtml(html, reference, validator);
-        expect(recorder.calls, expectedCalls);
-      });
-    }
-
-    checkUriPolicyCalls('a::href', '<a href="s"></a>', '<a></a>', ['s']);
-
-    checkUriPolicyCalls(
-        'area::href', '<area href="s"></area>', '<area></area>', ['s']);
-
-    checkUriPolicyCalls(
-        'blockquote::cite',
-        '<blockquote cite="s"></blockquote>',
-        '<blockquote></blockquote>',
-        ['s']);
-    checkUriPolicyCalls(
-        'command::icon', '<command icon="s"/>', '<command/>', ['s']);
-    checkUriPolicyCalls('img::src', '<img src="s"/>', '<img/>', ['s']);
-    checkUriPolicyCalls('input::src', '<input src="s"/>', '<input/>', ['s']);
-    checkUriPolicyCalls(
-        'ins::cite', '<ins cite="s"></ins>', '<ins></ins>', ['s']);
-    checkUriPolicyCalls('q::cite', '<q cite="s"></q>', '<q></q>', ['s']);
-    checkUriPolicyCalls(
-        'video::poster', '<video poster="s"/>', '<video/>', ['s']);
-  });
-
-  group('allowNavigation', () {
-    var validator = new NodeValidatorBuilder()..allowNavigation();
-
-    testHtml('allows anchor tags', validator, '<a href="#foo">foo</a>');
-
-    testHtml('allows form elements', validator,
-        '<form method="post" action="/foo"></form>');
-
-    testHtml('disallows script navigation', validator,
-        '<a href="javascript:foo = 1">foo</a>', '<a>foo</a>');
-
-    testHtml('disallows cross-site navigation', validator,
-        '<a href="http://example.com">example.com</a>', '<a>example.com</a>');
-
-    testHtml('blocks other elements', validator,
-        '<a href="#foo"><b>foo</b></a>', '<a href="#foo"></a>');
-
-    testHtml('blocks tag extension', validator, '<a is="x-foo"></a>', '');
-  });
-
-  group('allowImages', () {
-    var validator = new NodeValidatorBuilder()..allowImages();
-
-    testHtml('allows images', validator,
-        '<img src="/foo.jpg" alt="something" width="100" height="100"/>');
-
-    testHtml('blocks onerror', validator,
-        '<img src="/foo.jpg" onerror="something"/>', '<img src="/foo.jpg"/>');
-
-    testHtml('enforces same-origin', validator,
-        '<img src="http://example.com/foo.jpg"/>', '<img/>');
-  });
-
-  group('allowCustomElement', () {
-    var validator = new NodeValidatorBuilder()
-      ..allowCustomElement('x-foo', attributes: ['bar'], uriAttributes: ['baz'])
-      ..allowHtml5();
-
-    testHtml('allows custom elements', validator,
-        '<x-foo bar="something" baz="/foo.jpg"></x-foo>');
-
-    testHtml('validates custom tag URIs', validator,
-        '<x-foo baz="http://example.com/foo.jpg"></x-foo>', '<x-foo></x-foo>');
-
-    testHtml('blocks type extensions', validator, '<div is="x-foo"></div>', '');
-
-    testHtml('blocks tags on non-matching elements', validator,
-        '<div bar="foo"></div>', '<div></div>');
-  });
-
-  group('identify Uri attributes listed as attributes', () {
-    var validator = new NodeValidatorBuilder()
-      ..allowElement('a', attributes: ['href']);
-
-    testHtml(
-        'reject different-origin link',
-        validator,
-        '<a href="http://www.google.com/foo">Google-Foo</a>',
-        '<a>Google-Foo</a>');
-  });
-
-  group('allowTagExtension', () {
-    var validator = new NodeValidatorBuilder()
-      ..allowTagExtension('x-foo', 'div',
-          attributes: ['bar'], uriAttributes: ['baz'])
-      ..allowHtml5();
-
-    testHtml('allows tag extensions', validator,
-        '<div is="x-foo" bar="something" baz="/foo.jpg"></div>');
-
-    testHtml('blocks custom elements', validator, '<x-foo></x-foo>', '');
-
-    testHtml(
-        'validates tag extension URIs',
-        validator,
-        '<div is="x-foo" baz="http://example.com/foo.jpg"></div>',
-        '<div is="x-foo"></div>');
-
-    testHtml('blocks tags on non-matching elements', validator,
-        '<div bar="foo"></div>', '<div></div>');
-
-    testHtml('blocks non-matching tags', validator,
-        '<span is="x-foo">something</span>', '');
-
-    validator = new NodeValidatorBuilder()
-      ..allowTagExtension('x-foo', 'div',
-          attributes: ['bar'], uriAttributes: ['baz'])
-      ..allowTagExtension('x-else', 'div');
-
-    testHtml('blocks tags on non-matching custom elements', validator,
-        '<div bar="foo" is="x-else"></div>', '<div is="x-else"></div>');
-  });
-
-  group('allowTemplating', () {
-    var validator = new NodeValidatorBuilder()
-      ..allowTemplating()
-      ..allowHtml5();
-
-    testHtml(
-        'allows templates', validator, '<template bind="{{a}}"></template>');
-
-    testHtml('allows template attributes', validator,
-        '<template bind="{{a}}" ref="foo" repeat="{{}}" if="{{}}" syntax="foo"></template>');
-
-    testHtml('allows template attribute', validator,
-        '<div template repeat="{{}}"></div>');
-
-    testHtml('blocks illegal template attribute', validator,
-        '<div template="foo" repeat="{{}}"></div>', '<div></div>');
-  });
-
-  group('allowSvg', () {
-    var validator = new NodeValidatorBuilder()
-      ..allowSvg()
-      ..allowTextElements();
-
-    testHtml(
-        'allows basic SVG',
-        validator,
-        '<svg xmlns="http://www.w3.org/2000/svg'
-        'xmlns:xlink="http://www.w3.org/1999/xlink">'
-        '<image xlink:href="foo" data-foo="bar"/>'
-        '</svg>');
-
-    testHtml(
-        'blocks script elements',
-        validator,
-        '<svg xmlns="http://www.w3.org/2000/svg>'
-        '<script></script>'
-        '</svg>',
-        '');
-
-    testHtml(
-        'blocks script elements but allows other',
-        validator,
-        '<svg xmlns="http://www.w3.org/2000/svg>'
-        '<script></script><ellipse cx="200" cy="80" rx="100" ry="50"></ellipse>'
-        '</svg>',
-        '<svg xmlns="http://www.w3.org/2000/svg>'
-        '<ellipse cx="200" cy="80" rx="100" ry="50"></ellipse>'
-        '</svg>');
-
-    testHtml(
-        'blocks script handlers',
-        validator,
-        '<svg xmlns="http://www.w3.org/2000/svg'
-        'xmlns:xlink="http://www.w3.org/1999/xlink">'
-        '<image xlink:href="foo" onerror="something"/>'
-        '</svg>',
-        '<svg xmlns="http://www.w3.org/2000/svg'
-        'xmlns:xlink="http://www.w3.org/1999/xlink">'
-        '<image xlink:href="foo"/>'
-        '</svg>');
-
-    testHtml(
-        'blocks foreignObject content',
-        validator,
-        '<svg xmlns="http://www.w3.org/2000/svg">'
-        '<foreignobject width="100" height="150">'
-        '<body xmlns="http://www.w3.org/1999/xhtml">'
-        '<div>Some content</div>'
-        '</body>'
-        '</foreignobject>'
-        '<b>42</b>'
-        '</svg>',
-        '<svg xmlns="http://www.w3.org/2000/svg">'
-        '<b>42</b>'
-        '</svg>');
-  });
-
-  group('allowInlineStyles', () {
-    var validator = new NodeValidatorBuilder()
-      ..allowTextElements()
-      ..allowInlineStyles();
-
-    testHtml('allows inline styles', validator,
-        '<span style="background-color:red">text</span>');
-
-    testHtml('blocks other attributes', validator,
-        '<span class="red-span"></span>', '<span></span>');
-
-    validator = new NodeValidatorBuilder()
-      ..allowTextElements()
-      ..allowInlineStyles(tagName: 'span');
-
-    testHtml('scoped allows inline styles on spans', validator,
-        '<span style="background-color:red">text</span>');
-
-    testHtml('scoped blocks inline styles on LIs', validator,
-        '<li style="background-color:red">text</li>', '<li>text</li>');
-  });
-
-  group('throws', () {
-    var validator = new NodeValidator.throws(new NodeValidatorBuilder.common());
-
-    var validationError = throwsArgumentError;
-
-    test('does not throw on valid syntax', () {
-      expect(() {
-        document.body.createFragment('<div></div>', validator: validator);
-      }, returnsNormally);
-    });
-
-    test('throws on invalid elements', () {
-      expect(() {
-        document.body.createFragment('<foo></foo>', validator: validator);
-      }, validationError);
-    });
-
-    test('throws on invalid attributes', () {
-      expect(() {
-        document.body
-            .createFragment('<div foo="bar"></div>', validator: validator);
-      }, validationError);
-    });
-
-    test('throws on invalid attribute values', () {
-      expect(() {
-        document.body.createFragment('<img src="http://example.com/foo.jpg"/>',
-            validator: validator);
-      }, validationError);
-    });
-  });
-
-  group('svg', () {
-    test('parsing', () {
-      var svgText = '<svg xmlns="http://www.w3.org/2000/svg'
-          'xmlns:xlink="http://www.w3.org/1999/xlink">'
-          '<image xlink:href="foo" data-foo="bar"/>'
-          '</svg>';
-
-      var fragment = new DocumentFragment.svg(svgText);
-      var element = fragment.nodes.first as Element;
-      expect(element is svg.SvgSvgElement, isTrue);
-      expect(element.children[0] is svg.ImageElement, isTrue);
-    });
-  });
-
-  group('dom_clobbering', () {
-    var validator = new NodeValidatorBuilder.common();
-
-    testHtml(
-        'DOM clobbering of attributes with single node',
-        validator,
-        "<form id='single_node_clobbering' onmouseover='alert(1)'><input name='attributes'>",
-        "");
-
-    testHtml('DOM clobbering of previousSibling',
-      validator,
-      'https://example.com/<div><img/src="x"/onerror="alert();"/><form><input/name="previousSibling"></form></div>',
-      'https://example.com/<div><img src="x"></div>'
-    );
-
-    // The lastChild and childNodes clobbering corrupts iterating the tree. They
-    // get removed, but in the meantime the evil node has been skipped. Note
-    // that we end up deleting the entire form because the clobbering makes its
-    // lastChild incorrect and we detect this, but only on the second time
-    // through.
-    testHtml('DOM clobbering of both childNodes and lastChild',
-      validator,
-      "abc<form><div><img src='x' onerror='alert(document.domain)'></div><div><input name='childNodes'><input id='lastChild' name='childNodes'></div></form>",
-      'abc'
-    );
-
-    test('DOM clobbering of previousSibling via append', () {
-      var div = Element.div();
-      var bad =
-          'https://example.com/<div><img/src="x"/onerror="alert();"/><form><input/name="previousSibling"></form></div>';
-      div.innerHtml = bad;
-      expect(div.innerHtml, 'https://example.com/<div><img src="x"></div>');
-    });
-
-    testHtml(
-        'DOM clobbering of attributes with multiple nodes',
-        validator,
-        "<form onmouseover='alert(1)'><input name='attributes'>"
-        "<input name='attributes'>",
-        "");
-
-    testHtml('DOM clobbering of lastChild', validator,
-        "<form><input name='lastChild'><input onmouseover='alert(1)'>", "");
-
-    testHtml(
-        'DOM clobbering of both children and lastChild',
-        validator,
-        "<form><input name='lastChild'><input name='children'>"
-        "<input id='children'><input onmouseover='alert(1)'>",
-        "");
-
-    testHtml(
-        'DOM clobbering of both children and lastChild, different order',
-        validator,
-        "<form><input name='children'><input name='children'>"
-        "<input id='children' name='lastChild'>"
-        "<input id='bad' onmouseover='alert(1)'>",
-        "");
-
-    // Walking templates triggers a recursive sanitization call, which shouldn't
-    // invalidate the information collected from the previous visit of the later
-    // nodes in the walk.
-    testHtml(
-        'DOM clobbering with recursive sanitize call using templates',
-        validator,
-        "<form><div>"
-          "<input id=childNodes />"
-          "<template></template>"
-          "<input id=childNodes name=lastChild />"
-          "<img id=exploitImg src=0 onerror='alert(1)' />"
-          "</div></form>",
-        "");
-
-    test('tagName makes containing form invalid', () {
-      var fragment = document.body.createFragment(
-          "<form onmouseover='alert(2)'><input name='tagName'>",
-          validator: validator);
-      var form = fragment.lastChild as FormElement;
-      // If the tagName was clobbered, the sanitizer should have removed
-      // the whole thing and form is null.
-      // If the tagName was not clobbered, then there will be content,
-      // but the tagName should be the normal value. IE11 has started
-      // doing this.
-      if (form != null) {
-        expect(form.tagName, 'FORM');
-      }
-    });
-
-    test('tagName without mouseover', () {
-      var fragment = document.body
-          .createFragment("<form><input name='tagName'>", validator: validator);
-      var form = fragment.lastChild as FormElement;
-      // If the tagName was clobbered, the sanitizer should have removed
-      // the whole thing and form is null.
-      // If the tagName was not clobbered, then there will be content,
-      // but the tagName should be the normal value.
-      if (form != null) {
-        expect(form.tagName, 'FORM');
-      }
-    });
-  });
-}
diff --git a/tests/lib_2/html/non_instantiated_is_test.dart b/tests/lib_2/html/non_instantiated_is_test.dart
deleted file mode 100644
index 42b4be7d6f4..00000000000
--- a/tests/lib_2/html/non_instantiated_is_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js, that used to emit wrong code on is
-// checks of native classes that are not instantiated.
-
-import 'dart:html';
-
-import 'package:expect/expect.dart';
-
-var a = [new Object()];
-
-main() {
-  Expect.isFalse(a[0] is Node);
-}
diff --git a/tests/lib_2/html/notification_test.dart b/tests/lib_2/html/notification_test.dart
deleted file mode 100644
index 724959cb0d5..00000000000
--- a/tests/lib_2/html/notification_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  group('supported_notification', () {
-    test('supported', () {
-      expect(Notification.supported, true);
-    });
-  });
-
-  group('constructors', () {
-    // Test that we create the notification and that the parameters have
-    // the expected values. Note that these won't actually display, because
-    // we haven't asked for permission, which would have to be done
-    // interactively, so can't run on a bot.
-    test('Notification', () {
-      var expectation = Notification.supported ? returnsNormally : throws;
-      expect(() {
-        var allDefaults = new Notification("Hello world");
-        var allSpecified = new Notification("Deluxe notification",
-            dir: "rtl",
-            body: 'All parameters set',
-            icon: 'icon.png',
-            tag: 'tag',
-            lang: 'en_US');
-        expect(allDefaults is Notification, isTrue);
-        expect(allSpecified is Notification, isTrue);
-        expect(allDefaults.title, "Hello world");
-        expect(allSpecified.title, "Deluxe notification");
-        expect(allSpecified.dir, "rtl");
-        expect(allSpecified.body, "All parameters set");
-        var icon = allSpecified.icon;
-        var tail = Uri.parse(icon).pathSegments.last;
-        expect(tail, "icon.png");
-        expect(allSpecified.tag, "tag");
-        expect(allSpecified.lang, "en_US");
-      }, expectation);
-    });
-  });
-}
diff --git a/tests/lib_2/html/performance_api_test.dart b/tests/lib_2/html/performance_api_test.dart
deleted file mode 100644
index 46b9ee36ad7..00000000000
--- a/tests/lib_2/html/performance_api_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  group('supported', () {
-    test('supported', () {
-      expect(Performance.supported, true);
-    });
-  });
-
-  group('performance', () {
-    test('PerformanceApi', () {
-      // Check that code below will not throw exceptions if supported.
-      var expectation = Performance.supported ? returnsNormally : throws;
-      expect(() {
-        var requestStart = window.performance.timing.requestStart;
-        var responseStart = window.performance.timing.responseStart;
-        var responseEnd = window.performance.timing.responseEnd;
-
-        var loading = window.performance.timing.domLoading;
-        var loadedStart = window.performance.timing.domContentLoadedEventStart;
-        var loadedEnd = window.performance.timing.domContentLoadedEventEnd;
-        var complete = window.performance.timing.domComplete;
-
-        var loadEventStart = window.performance.timing.loadEventStart;
-      }, expectation);
-    });
-    test('markAndMeasure', () {
-      window.performance.mark('mark1');
-      window.performance.mark('mark2', {'detail': 'metadata'});
-      window.performance.measure('measure1');
-      window.performance.measure('measure2', 'mark1');
-      window.performance.measure('measure3', 'mark1', 'mark2');
-    });
-  });
-}
diff --git a/tests/lib_2/html/postmessage_anonymous_test.dart b/tests/lib_2/html/postmessage_anonymous_test.dart
deleted file mode 100644
index 348796b1028..00000000000
--- a/tests/lib_2/html/postmessage_anonymous_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS()
-library postmessage_anonymous_test;
-
-import 'dart:async';
-import 'dart:html';
-import 'package:expect/expect.dart';
-import 'package:js/js.dart';
-
-const String JS_CODE = """
-window.addEventListener('message', handler);
-function handler(e) {
-  var data = e.data;
-  if (typeof data == 'string') return;
-  if (data.recipient != 'JS') return;
-  var response = {recipient: 'DART', msg: data.msg};
-  window.removeEventListener('message', handler);
-  window.postMessage(response, '*');
-}
-""";
-
-const String TEST_MSG = "hello world";
-
-@JS()
-@anonymous
-class Message {
-  external String get recipient;
-  external String get msg;
-  external factory Message({String recipient, String msg});
-}
-
-main() {
-  var subscription;
-  subscription = window.onMessage.listen((e) {
-    var data = e.data;
-    if (data is String) return;
-    if (data['recipient'] != 'DART') return;
-    subscription.cancel();
-    Expect.equals(TEST_MSG, data['msg']);
-  });
-  injectSource(JS_CODE);
-  window.postMessage(Message(recipient: 'JS', msg: TEST_MSG), '*');
-}
-
-void injectSource(String code) {
-  final script = new ScriptElement();
-  script.type = 'text/javascript';
-  script.innerHtml = code;
-  document.body.append(script);
-}
diff --git a/tests/lib_2/html/postmessage_structured_test.dart b/tests/lib_2/html/postmessage_structured_test.dart
deleted file mode 100644
index 432a8a80fcc..00000000000
--- a/tests/lib_2/html/postmessage_structured_test.dart
+++ /dev/null
@@ -1,195 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file
-
-// @dart = 2.9
-
-library postmessage_js_test;
-
-import 'dart:async';
-import 'dart:html';
-import 'dart:collection' show HashMap, SplayTreeMap;
-import 'dart:typed_data';
-
-import 'package:expect/minitest.dart';
-
-import 'utils.dart';
-
-final isMap = predicate((v) => v is Map);
-
-void injectSource(String code) {
-  final script = new ScriptElement();
-  script.type = 'text/javascript';
-  script.innerHtml = code;
-  document.body.append(script);
-}
-
-Future go(String name, dynamic value) {
-  // Round-trip graph from Dart to JavaScript and back.
-
-  final JS_CODE = """
-            window.addEventListener('message', handler);
-            function handler(e) {
-              var data = e.data;
-              if (typeof data == 'string') return;
-              if (data.recipient != 'JS') return;
-              window.console.log(data.data);
-              var response = {recipient: 'DART', data: data.data};
-              window.removeEventListener('message', handler);
-              window.postMessage(response, '*');
-            }
-            """;
-  final done = new Completer();
-  var subscription;
-  subscription = window.onMessage.listen((e) {
-    var data = e.data;
-    if (data is String) return; // Messages from unit test protocol.
-    if (data['recipient'] != 'DART') return; // Not for me.
-    try {
-      subscription.cancel();
-      expect(data, isMap);
-      var returnedValue = data['data'];
-      expect(returnedValue, notEquals(value));
-      verifyGraph(value, returnedValue);
-      done.complete();
-    } catch (e) {
-      done.completeError('$name failed: $e');
-    }
-  });
-  injectSource(JS_CODE);
-  window.postMessage({'recipient': 'JS', 'data': value}, '*');
-  return done.future;
-}
-
-Future primitives() async {
-  await testJsToDartPostmessage();
-
-  var obj1 = {'a': 100, 'b': 's'};
-  var obj2 = {'x': obj1, 'y': obj1}; // DAG.
-
-  var obj3 = <String, dynamic>{};
-  obj3['a'] = 100;
-  obj3['b'] = obj3; // Cycle.
-
-  var obj4 = new SplayTreeMap<String, dynamic>(); // Different implementation.
-  obj4['a'] = 100;
-  obj4['b'] = 's';
-
-  var cyclic_list = <dynamic>[1, 2, 3];
-  cyclic_list[1] = cyclic_list;
-
-  await go('test_simple_list', [1, 2, 3]);
-  await go('test_map', obj1);
-  await go('test_DAG', obj2);
-  await go('test_cycle', obj3);
-  await go('test_simple_splay', obj4);
-  await go('const_array_1', const [
-    const [1],
-    const [2]
-  ]);
-  await go('const_array_dag', const [
-    const [1],
-    const [1]
-  ]);
-  await go('array_deferred_copy', [1, 2, 3, obj3, obj3, 6]);
-  await go('array_deferred_copy_2', [
-    1,
-    2,
-    3,
-    [4, 5, obj3],
-    [obj3, 6]
-  ]);
-  await go('cyclic_list', cyclic_list);
-}
-
-Future testJsToDartPostmessage() {
-  // Pass an object literal from JavaScript. It should be seen as a Dart Map.
-  final JS_CODE = """
-        window.postMessage({eggs: 3}, '*');
-        """;
-  final done = new Completer();
-  var subscription = null;
-  subscription = window.onMessage.listen((e) {
-    var data = e.data;
-    if (data is String) return; //    Messages from unit test protocol.
-    try {
-      subscription.cancel();
-      expect(data, isMap);
-      expect(data['eggs'], equals(3));
-      done.complete();
-    } catch (e) {
-      done.completeError(e);
-    }
-  });
-  injectSource(JS_CODE);
-  return done.future;
-}
-
-Future morePrimitives() async {
-  await testJsToDartNullPrototypeEventdata();
-}
-
-Future testJsToDartNullPrototypeEventdata() {
-  // Pass an object with a null prototype from JavaScript.
-  // It should be seen as a Dart Map.
-  final JS_CODE = """
-       // Call anonymous function to create a local scope.
-       (function() {
-          var o = Object.create(null);
-          o.eggs = 3;
-          var foo = new MessageEvent('stuff', {data: o});
-          window.dispatchEvent(foo);
-        })();
-      """;
-  final done = new Completer();
-  var subscription = null;
-  subscription = window.on['stuff'].listen((e) {
-    var data = (e as MessageEvent).data;
-    if (data is String) return; // Messages from unit test protocol.
-    try {
-      subscription.cancel();
-      expect(data, isMap);
-      expect(data['eggs'], equals(3));
-      done.complete();
-    } catch (e) {
-      done.completeError(e);
-    }
-  });
-  injectSource(JS_CODE);
-  return done.future;
-}
-
-Future typedArrays() async {
-  var array_buffer = new Uint8List(16).buffer;
-  var view_a = new Float32List.view(array_buffer, 0, 4);
-  var view_b = new Uint8List.view(array_buffer, 1, 13);
-  var typed_arrays_list = [view_a, array_buffer, view_b];
-
-  // Note that FF is failing this test because in the sent message:
-  // view_a.buffer == array_buffer
-  // But in the response:
-  // view_a.buffer != array_buffer
-  await go('typed_arrays_list', typed_arrays_list);
-}
-
-Future iframe() async {
-  await postMessageClonesData();
-}
-
-Future postMessageClonesData() {
-  var iframe = new IFrameElement();
-  var future = iframe.onLoad.first.then((_) {
-    iframe.contentWindow.postMessage(new HashMap<String, num>(), '*');
-  });
-  iframe.src = 'about:blank';
-  document.body.append(iframe);
-
-  return future;
-}
-
-main() async {
-  await primitives();
-  await morePrimitives();
-  await typedArrays();
-  await iframe();
-}
diff --git a/tests/lib_2/html/private_extension_member_test.dart b/tests/lib_2/html/private_extension_member_test.dart
deleted file mode 100644
index 5342e09fc4a..00000000000
--- a/tests/lib_2/html/private_extension_member_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-import 'dart:html';
-
-main() {
-  // Regression test for: https://github.com/dart-lang/dev_compiler/issues/508.
-  // "dart:html" defines some private members on native DOM types and we need
-  // to ensure those can be accessed correctly.
-  //
-  // The createFragment() method sets `_innerHtml` on the element, so we use it
-  // as a test case.
-  Expect.equals("[object DocumentFragment]",
-      new BRElement().createFragment("Hi").toString());
-}
diff --git a/tests/lib_2/html/query_test.dart b/tests/lib_2/html/query_test.dart
deleted file mode 100644
index 961ee5cfa54..00000000000
--- a/tests/lib_2/html/query_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  final div = new DivElement();
-  final canvas = new CanvasElement(width: 200, height: 200);
-  canvas.id = 'testcanvas';
-  final element = new Element.html("<div><br/><img/><input/><img/></div>");
-  document.body.nodes.addAll([div, canvas, element]);
-
-  var isCanvasElement =
-      predicate((x) => x is CanvasElement, 'is a CanvasElement');
-  var isImageElement =
-      predicate((x) => x is ImageElement, 'is an ImageElement');
-
-  test('query', () {
-    Element e = querySelector('#testcanvas');
-    expect(e, isNotNull);
-    expect(e.id, 'testcanvas');
-    expect(e, isCanvasElement);
-    expect(e, canvas);
-  });
-
-  test('query (None)', () {
-    Element e = querySelector('#nothere');
-    expect(e, isNull);
-  });
-
-  test('queryAll (One)', () {
-    List l = querySelectorAll('canvas');
-    expect(l.length, 1);
-    expect(l[0], canvas);
-  });
-
-  test('queryAll (Multiple)', () {
-    List l = querySelectorAll('img');
-    expect(l.length, 2);
-    expect(l[0], isImageElement);
-    expect(l[1], isImageElement);
-    expect(l[0] == l[1], isFalse);
-  });
-
-  test('queryAll (None)', () {
-    List l = querySelectorAll('video');
-    expect(l.isEmpty, isTrue);
-  });
-}
diff --git a/tests/lib_2/html/queryall_test.dart b/tests/lib_2/html/queryall_test.dart
deleted file mode 100644
index 274fb70bb60..00000000000
--- a/tests/lib_2/html/queryall_test.dart
+++ /dev/null
@@ -1,89 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  var isElement = predicate((x) => x is Element, 'is an Element');
-  var isCanvasElement =
-      predicate((x) => x is CanvasElement, 'is a CanvasElement');
-  var isDivElement = predicate((x) => x is DivElement, 'is a isDivElement');
-
-  var div = new DivElement();
-  div.id = 'test';
-  document.body.append(div);
-
-  div.nodes.addAll([
-    new DivElement(),
-    new CanvasElement(),
-    new DivElement(),
-    new Text('Hello'),
-    new DivElement(),
-    new Text('World'),
-    new CanvasElement()
-  ]);
-
-  test('querySelectorAll', () {
-    List<Node> all = querySelectorAll('*');
-    for (var e in all) {
-      expect(e, isElement);
-    }
-  });
-
-  test('document.querySelectorAll', () {
-    List<Element> all1 = querySelectorAll('*');
-    List<Element> all2 = document.querySelectorAll('*');
-    expect(all1.length, equals(all2.length));
-    for (var i = 0; i < all1.length; ++i) {
-      expect(all1[i], equals(all2[i]));
-    }
-  });
-
-  test('querySelectorAll-canvas', () {
-    var all = querySelectorAll('canvas');
-    for (var e in all) {
-      expect(e, isCanvasElement);
-    }
-    expect(all.length, equals(2));
-  });
-
-  test('querySelectorAll-contains', () {
-    List<Element> all = querySelectorAll('*');
-    for (var e in all) {
-      expect(all.contains(e), isTrue);
-    }
-  });
-
-  test('querySelectorAll-where', () {
-    List<Element> all = querySelectorAll('*');
-    var canvases = all.where((e) => e is CanvasElement);
-    for (var e in canvases) {
-      expect(e is CanvasElement, isTrue);
-    }
-    expect(canvases.length, equals(2));
-  });
-
-  test('node.querySelectorAll', () {
-    List<Element> list = div.querySelectorAll('*');
-    expect(list.length, equals(5));
-    expect(list[0], isDivElement);
-    expect(list[1], isCanvasElement);
-    expect(list[2], isDivElement);
-    expect(list[3], isDivElement);
-    expect(list[4], isCanvasElement);
-  });
-
-  test('immutable', () {
-    List<Element> list = div.querySelectorAll('*');
-    int len = list.length;
-    expect(() {
-      list.add(new DivElement());
-    }, throwsUnsupportedError);
-    expect(list.length, equals(len));
-  });
-}
diff --git a/tests/lib_2/html/range_test.dart b/tests/lib_2/html/range_test.dart
deleted file mode 100644
index cf8b44d14e3..00000000000
--- a/tests/lib_2/html/range_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  group('supported', () {
-    test('supports_createContextualFragment', () {
-      expect(Range.supportsCreateContextualFragment, isTrue);
-    });
-  });
-
-  group('functional', () {
-    test('supported works', () {
-      var range = new Range();
-      range.selectNode(document.body);
-
-      var expectation =
-          Range.supportsCreateContextualFragment ? returnsNormally : throws;
-
-      expect(() {
-        range.createContextualFragment('<div></div>');
-      }, expectation);
-    });
-  });
-}
diff --git a/tests/lib_2/html/request_animation_frame_test.dart b/tests/lib_2/html/request_animation_frame_test.dart
deleted file mode 100644
index ccde046903a..00000000000
--- a/tests/lib_2/html/request_animation_frame_test.dart
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library RequestAnimationFrameTest;
-
-import 'dart:async';
-import 'dart:html';
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-Future testOneShot() async {
-  final done = new Completer();
-  window.requestAnimationFrame(done.complete);
-  await done.future;
-}
-
-Future testTwoShot() async {
-  final done = new Completer();
-  window.requestAnimationFrame((timestamp1) {
-    window.requestAnimationFrame((timestamp2) {
-      // Not monotonic on Safari and IE.
-      // expect(timestamp2, greaterThan(timestamp1),
-      //    reason: 'timestamps ordered');
-      done.complete();
-    });
-  });
-  await done.future;
-}
-
-// How do we test that a callback is never called?  We can't wrap the uncalled
-// callback with 'expectAsync'.  Will request several frames and try
-// cancelling the one that is not the last.
-Future testCancel1() async {
-  final done = new Completer();
-  var frame1 = window.requestAnimationFrame((timestamp1) {
-    Expect.fail('Should have been cancelled');
-  });
-  window.requestAnimationFrame(done.complete);
-  window.cancelAnimationFrame(frame1);
-  await done.future;
-}
-
-Future testCancel2() async {
-  final done1 = new Completer();
-  final done2 = new Completer();
-  window.requestAnimationFrame(done1.complete);
-  var frame2 = window.requestAnimationFrame((timestamp2) {
-    Expect.fail('Should have been cancelled');
-  });
-  window.requestAnimationFrame(done2.complete);
-  window.cancelAnimationFrame(frame2);
-  await Future.wait([done1.future, done2.future]);
-}
-
-main() {
-  asyncTest(() async {
-    await testOneShot();
-    await testTwoShot();
-    await testCancel1();
-    await testCancel2();
-  });
-}
diff --git a/tests/lib_2/html/request_fullscreen_test.dart b/tests/lib_2/html/request_fullscreen_test.dart
deleted file mode 100644
index 2138e2d9a62..00000000000
--- a/tests/lib_2/html/request_fullscreen_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'dart:html';
-
-void main() async {
-  var documentElement = document.documentElement!;
-
-  // `requestFullscreen` requires user interaction to succeed, so this just
-  // tests that the bindings and type work.
-  await documentElement.requestFullscreen().catchError((_) {});
-  // Try it with an options argument.
-  await documentElement
-      .requestFullscreen({'navigationUI': 'show'}).catchError((_) {});
-}
diff --git a/tests/lib_2/html/rtc_test.dart b/tests/lib_2/html/rtc_test.dart
deleted file mode 100644
index 7deffb96a1c..00000000000
--- a/tests/lib_2/html/rtc_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  group('supported', () {
-    test('supported', () {
-      expect(RtcPeerConnection.supported, isTrue);
-    });
-  });
-
-  group('functionality', () {
-    // More thorough testing of this API requires the user to
-    // explicitly click "allow this site to access my camera and/or microphone."
-    // or particularly allow that site to always have those permission on each
-    // computer the test is run. For more through tests, see
-    // interactive_test.dart.
-    if (RtcPeerConnection.supported) {
-      test('peer connection', () {
-        var pc = new RtcPeerConnection({
-          'iceServers': [
-            {'url': 'stun:216.93.246.18:3478'}
-          ]
-        });
-        expect(pc is RtcPeerConnection, isTrue);
-        pc.onIceCandidate.listen((candidate) {});
-      });
-
-      test('ice candidate', () {
-        var candidate =
-            new RtcIceCandidate({'sdpMLineIndex': 1, 'candidate': 'hello'});
-        expect(candidate is RtcIceCandidate, isTrue);
-      });
-
-      test('session description', () {
-        var description =
-            new RtcSessionDescription({'sdp': 'foo', 'type': 'offer'});
-        expect(description is RtcSessionDescription, isTrue);
-      });
-
-      test('connection state', () {
-        var pc = new RtcPeerConnection({
-          'iceServers': [
-            {'url': 'stun:216.93.246.18:3478'}
-          ]
-        });
-        // `connectionState` is unsupported on some browsers, so we check
-        // whether the attribute exists first.
-        if (pc.connectionState != null) {
-          expect(pc.connectionState, equals('new'));
-        }
-        pc.onConnectionStateChange.listen((event) {});
-      });
-    }
-  });
-}
diff --git a/tests/lib_2/html/selectelement_test.dart b/tests/lib_2/html/selectelement_test.dart
deleted file mode 100644
index d1147889ff0..00000000000
--- a/tests/lib_2/html/selectelement_test.dart
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('selectedOptions', () {
-    var element = new SelectElement();
-    element.multiple = false;
-    var options = [
-      new OptionElement(),
-      new DivElement(),
-      new OptionElement(data: 'data', value: 'two', selected: true),
-      new DivElement(),
-      new OptionElement(data: 'data', value: 'two', selected: true),
-      new OptionElement(),
-    ];
-    element.children.addAll(options);
-    expect(element.selectedOptions.length, 1);
-    expect(element.selectedOptions[0], equals(options[4]));
-  });
-
-  test('multiple selectedOptions', () {
-    var element = new SelectElement();
-    element.multiple = true;
-    var options = [
-      new OptionElement(),
-      new DivElement(),
-      new OptionElement(data: 'data', value: 'two', selected: true),
-      new DivElement(),
-      new OptionElement(data: 'data', value: 'two', selected: true),
-      new OptionElement(),
-      new OptionElement(data: 'data', value: 'two', selected: false),
-    ];
-    element.children.addAll(options);
-    expect(element.selectedOptions.length, 2);
-    expect(element.selectedOptions[0], equals(options[2]));
-    expect(element.selectedOptions[1], equals(options[4]));
-  });
-
-  test('options', () {
-    var element = new SelectElement();
-    var options = [
-      new OptionElement(),
-      new OptionElement(data: 'data', value: 'two', selected: true),
-      new OptionElement(data: 'data', value: 'two', selected: true),
-      new OptionElement(),
-    ];
-    element.children.addAll(options);
-    // Use last to make sure that the list was correctly wrapped.
-    expect(element.options.last, equals(options[3]));
-  });
-
-  test('optgroup', () {
-    var element = new Element.html('<select>'
-        '<option>1</option>'
-        '<optgroup>'
-        '<option>2</option>'
-        '</optgroup>'
-        '</select>') as SelectElement;
-
-    expect(element.options.length, 2);
-    element.selectedIndex = 1;
-
-    var optGroup = element.children[1];
-    expect(optGroup is OptGroupElement, isTrue);
-    expect((optGroup.children.single as OptionElement).selected, isTrue);
-    expect(element.selectedOptions, optGroup.children);
-  });
-}
diff --git a/tests/lib_2/html/serialized_script_value_test.dart b/tests/lib_2/html/serialized_script_value_test.dart
deleted file mode 100644
index 925563ad5ff..00000000000
--- a/tests/lib_2/html/serialized_script_value_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-import 'utils.dart';
-
-serializationTest(name, value) {
-  test(name, () {
-    // To check how value is serialized and deserialized, we create a
-    // MessageEvent.
-    final event =
-        new MessageEvent('', data: value, origin: '', lastEventId: '');
-    verifyGraph(value, event.data);
-  });
-}
-
-main() {
-  serializationTest('null', null);
-  serializationTest('int', 1);
-  serializationTest('double', 2.39);
-  serializationTest('string', 'hey!');
-
-  final simpleMap = {'a': 100, 'b': 's'};
-  final dagMap = {'x': simpleMap, 'y': simpleMap};
-  final cyclicMap = {'b': dagMap};
-  cyclicMap['a'] = cyclicMap;
-  serializationTest('simple map', simpleMap);
-  serializationTest('dag map', dagMap);
-  serializationTest('cyclic map', cyclicMap);
-
-  final simpleList = [100, 's'];
-  final dagList = [simpleList, simpleList];
-  final cyclicList = [dagList];
-  cyclicList.add(cyclicList);
-  serializationTest('simple list', simpleList);
-  serializationTest('dag list', dagList);
-  serializationTest('cyclic list', cyclicList);
-
-  serializationTest('datetime', [new DateTime.now()]);
-
-  var blob = new Blob(
-      ['Indescribable... Indestructible! Nothing can stop it!'], 'text/plain');
-  serializationTest('blob', [blob]);
-
-  var canvas = new CanvasElement();
-  canvas.width = 100;
-  canvas.height = 100;
-  var imageData = canvas.context2D.getImageData(0, 0, 1, 1);
-  serializationTest('imagedata', [imageData]);
-}
diff --git a/tests/lib_2/html/shadow_dom_test.dart b/tests/lib_2/html/shadow_dom_test.dart
deleted file mode 100644
index effebe01412..00000000000
--- a/tests/lib_2/html/shadow_dom_test.dart
+++ /dev/null
@@ -1,91 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  group('supported', () {
-    test('supported', () {
-      expect(ShadowRoot.supported, true);
-    });
-  });
-
-  group('ShadowDOM_tests', () {
-    var div1, div2, shadowRoot, paragraph1, paragraph2;
-
-    init() {
-      paragraph1 = new ParagraphElement();
-      paragraph2 = new ParagraphElement();
-      [paragraph1, paragraph2].forEach((p) {
-        p.classes.add('foo');
-      });
-      div1 = new DivElement();
-      div2 = new DivElement();
-      div1.classes.add('foo');
-      shadowRoot = div2.createShadowRoot();
-      shadowRoot.append(paragraph1);
-      shadowRoot.append(new ContentElement());
-      div2.append(paragraph2);
-      document.body.append(div1);
-      document.body.append(div2);
-    }
-
-    var expectation = ShadowRoot.supported ? returnsNormally : throws;
-
-    test("Shadowed nodes aren't visible to queries from outside ShadowDOM", () {
-      expect(() {
-        init();
-
-        expect(querySelectorAll('.foo'), equals([div1, paragraph2]));
-      }, expectation);
-    });
-
-    test('Parent node of a shadow root must be null.', () {
-      expect(() {
-        init();
-
-        expect(shadowRoot.parent, isNull);
-      }, expectation);
-    });
-
-    // TODO(samhop): test that <content> and <content select="foo"> and
-    // <shadow>
-    // work properly. This is blocked on having a good way to do browser
-    // rendering tests.
-
-    test('Querying in shadowed fragment respects the shadow boundary.', () {
-      expect(() {
-        init();
-
-        expect(shadowRoot.querySelectorAll('.foo'), equals([paragraph1]));
-      }, expectation);
-    });
-
-    if (ShadowRoot.supported) {
-      test('Shadowroot contents are distributed', () {
-        var div = new DivElement();
-
-        var box1 = new DivElement()..classes.add('foo');
-        div.append(box1);
-
-        var box2 = new DivElement();
-        div.append(box2);
-
-        var sRoot = div.createShadowRoot();
-        var content1 = new ContentElement()..select = ".foo";
-        sRoot.append(content1);
-
-        var content2 = new ContentElement();
-        sRoot.append(content2);
-
-        expect(content1.getDistributedNodes(), [box1]);
-        expect(content2.getDistributedNodes(), [box2]);
-      });
-    }
-  });
-}
diff --git a/tests/lib_2/html/shadowroot_test.dart b/tests/lib_2/html/shadowroot_test.dart
deleted file mode 100644
index d548064ec79..00000000000
--- a/tests/lib_2/html/shadowroot_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  var isShadowRoot = predicate((x) => x is ShadowRoot, 'is a ShadowRoot');
-
-  test('ShadowRoot supported', () {
-    var isSupported = ShadowRoot.supported;
-
-    // If it's supported, then it should work. Otherwise should fail.
-    if (isSupported) {
-      var div = new DivElement();
-      var shadowRoot = div.createShadowRoot();
-      expect(shadowRoot, isShadowRoot);
-      expect(div.shadowRoot, shadowRoot);
-    } else {
-      expect(() => new DivElement().createShadowRoot(), throws);
-    }
-  });
-}
diff --git a/tests/lib_2/html/small.mp3 b/tests/lib_2/html/small.mp3
deleted file mode 100644
index 3fcc88b1aaa..00000000000
Binary files a/tests/lib_2/html/small.mp3 and /dev/null differ
diff --git a/tests/lib_2/html/small.mp4 b/tests/lib_2/html/small.mp4
deleted file mode 100644
index 5bb2780c2de..00000000000
Binary files a/tests/lib_2/html/small.mp4 and /dev/null differ
diff --git a/tests/lib_2/html/small.webm b/tests/lib_2/html/small.webm
deleted file mode 100644
index ff01e61adfb..00000000000
Binary files a/tests/lib_2/html/small.webm and /dev/null differ
diff --git a/tests/lib_2/html/speechrecognition_test.dart b/tests/lib_2/html/speechrecognition_test.dart
deleted file mode 100644
index 15b2a9baab4..00000000000
--- a/tests/lib_2/html/speechrecognition_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  group('supported', () {
-    test('supported', () {
-      expect(SpeechRecognition.supported, true);
-    });
-  });
-
-  group('types', () {
-    var expectation = SpeechRecognition.supported ? returnsNormally : throws;
-
-    test('SpeechRecognition', () {
-      expect(() {
-        var s = new SpeechRecognition();
-        expect(s is SpeechRecognition, true);
-        expect(s.onStart.listen is Function, true);
-      }, expectation);
-    });
-
-    test('SpeechRecognitionEvent', () {
-      expect(() {
-        var e = new SpeechRecognitionEvent('speech');
-        expect(e is SpeechRecognitionEvent, true);
-      }, expectation);
-    });
-
-    test('SpeechRecognitionError', () {
-      expect(() {
-        var e = new SpeechRecognitionError('speech');
-        expect(e is SpeechRecognitionError, true);
-      }, expectation);
-    });
-  });
-}
diff --git a/tests/lib_2/html/storage_promise_test.dart b/tests/lib_2/html/storage_promise_test.dart
deleted file mode 100644
index e6cc39c095d..00000000000
--- a/tests/lib_2/html/storage_promise_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library interactive_test;
-
-import 'dart:async';
-import 'dart:html';
-
-import 'package:async_helper/async_minitest.dart';
-import 'package:async_helper/async_helper.dart';
-
-main() async {
-  bool thenEstimateBefore, thenEstimateAfter, thenEstimateDone = false;
-  Map thenEstimate;
-  test('Basic Promise Test', () async {
-    try {
-      thenEstimateBefore = true;
-      window.navigator.storage.estimate().then((value) {
-        thenEstimate = value;
-        thenEstimateDone = true;
-      });
-      thenEstimateAfter = true;
-    } catch (msg) {
-      fail("StorageManger failed: $msg");
-    }
-
-    Map estimate = await window.navigator.storage.estimate();
-
-    expect(thenEstimate['usage'] >= 0, true);
-    expect(thenEstimate['quota'] > 1, true);
-    expect(thenEstimate['usage'], estimate['usage']);
-    expect(thenEstimate['quota'], estimate['quota']);
-
-    expect(thenEstimateBefore, true);
-    expect(thenEstimateAfter, true);
-    expect(thenEstimateDone, true);
-  });
-}
diff --git a/tests/lib_2/html/storage_test.dart b/tests/lib_2/html/storage_test.dart
deleted file mode 100644
index 6fb0f92b960..00000000000
--- a/tests/lib_2/html/storage_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('GetItem', () {
-    final value = window.localStorage['does not exist'];
-    expect(value, isNull);
-  });
-  test('SetItem', () {
-    final key = 'foo';
-    final value = 'bar';
-    window.localStorage[key] = value;
-    final stored = window.localStorage[key];
-    expect(stored, value);
-  });
-
-  test('event', () {
-    // Bug 8076 that not all optional params are optional in Dartium.
-    var event = new StorageEvent('something',
-        oldValue: 'old', newValue: 'new', url: 'url', key: 'key');
-    expect(event is StorageEvent, isTrue);
-    expect(event.oldValue, 'old');
-    expect(event.newValue, 'new');
-  });
-}
diff --git a/tests/lib_2/html/streams_test.dart b/tests/lib_2/html/streams_test.dart
deleted file mode 100644
index 22a39f517c2..00000000000
--- a/tests/lib_2/html/streams_test.dart
+++ /dev/null
@@ -1,276 +0,0 @@
-
-// @dart = 2.9
-import 'dart:async';
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-class StreamHelper {
-  var _a;
-  StreamHelper() {
-    _a = new TextInputElement();
-    document.body.append(_a);
-  }
-
-  Element get element => _a;
-  Stream<Event> get stream => _a.onFocus;
-
-  // Causes an event on a to be fired.
-  void pulse() {
-    var event = new Event('focus');
-    _a.dispatchEvent(event);
-  }
-}
-
-main() {
-  test('simple', () {
-    var helper = new StreamHelper();
-
-    var callCount = 0;
-    helper.stream.listen((Event e) {
-      ++callCount;
-    });
-
-    helper.pulse();
-    expect(callCount, 1);
-  });
-
-  test('broadcast', () {
-    var stream = new DivElement().onClick;
-    expect(stream.asBroadcastStream(), stream);
-    expect(stream.isBroadcast, isTrue);
-  });
-
-  // Validates that capturing events fire on parent before child.
-  test('capture', () {
-    var parent = new DivElement();
-    document.body.append(parent);
-
-    var helper = new StreamHelper();
-    parent.append(helper.element);
-
-    var childCallCount = 0;
-    var parentCallCount = 0;
-    Element.focusEvent.forTarget(parent, useCapture: true).listen((Event e) {
-      ++parentCallCount;
-      expect(childCallCount, 0);
-    });
-
-    Element.focusEvent
-        .forTarget(helper.element, useCapture: true)
-        .listen((Event e) {
-      ++childCallCount;
-      expect(parentCallCount, 1);
-    });
-
-    helper.pulse();
-    expect(childCallCount, 1);
-    expect(parentCallCount, 1);
-  });
-
-  test('cancel', () {
-    var helper = new StreamHelper();
-
-    var callCount = 0;
-    var subscription = helper.stream.listen((_) {
-      ++callCount;
-    });
-
-    helper.pulse();
-    expect(callCount, 1);
-
-    subscription.cancel();
-    helper.pulse();
-    expect(callCount, 1);
-
-    expect(() {
-      subscription.onData((_) {});
-    }, throws);
-
-    // Calling these after a cancel does nothing.
-    subscription.cancel();
-    subscription.pause();
-    subscription.resume();
-  });
-
-  test('pause/resume', () {
-    var helper = new StreamHelper();
-
-    var callCount = 0;
-    var subscription = helper.stream.listen((_) {
-      ++callCount;
-    });
-
-    helper.pulse();
-    expect(callCount, 1);
-
-    subscription.pause();
-    helper.pulse();
-    expect(callCount, 1);
-
-    subscription.resume();
-    helper.pulse();
-    expect(callCount, 2);
-
-    var completer = new Completer<int>.sync();
-    subscription.pause(completer.future);
-    helper.pulse();
-    expect(callCount, 2);
-
-    // Paused, should have no impact.
-    subscription.pause();
-    helper.pulse();
-    subscription.resume();
-    helper.pulse();
-    expect(callCount, 2);
-
-    completer.complete(0);
-    helper.pulse();
-    expect(callCount, 3);
-
-    // Not paused, but resuming once too often is ok.
-    subscription.resume();
-  });
-
-  test('onData', () {
-    var helper = new StreamHelper();
-
-    var callCountOne = 0;
-    var subscription = helper.stream.listen((_) {
-      ++callCountOne;
-    });
-
-    helper.pulse();
-    expect(callCountOne, 1);
-
-    var callCountTwo = 0;
-    subscription.onData((_) {
-      ++callCountTwo;
-    });
-
-    helper.pulse();
-    expect(callCountOne, 1);
-    expect(callCountTwo, 1);
-  });
-
-  test('null onData', () {
-    var helper = new StreamHelper();
-
-    var subscription = helper.stream.listen(null);
-    helper.pulse();
-
-    var callCountOne = 0;
-    subscription.onData((_) {
-      ++callCountOne;
-    });
-    helper.pulse();
-    expect(callCountOne, 1);
-
-    subscription.onData(null);
-    helper.pulse();
-    expect(callCountOne, 1);
-  });
-
-  var stream = new StreamHelper().stream;
-  // Streams have had some type-checking issues, these tests just validate that
-  // those are OK.
-  test('first', () {
-    stream.first.then((_) {});
-  });
-
-  test('asBroadcastStream', () {
-    stream.asBroadcastStream().listen((_) {});
-  });
-
-  test('where', () {
-    stream.where((_) => true).listen((_) {});
-  });
-
-  test('map', () {
-    stream.map((_) => null).listen((_) {});
-  });
-
-  test('reduce', () {
-    stream.reduce((a, b) => a).then((_) {});
-  });
-
-  test('fold', () {
-    stream.fold(null, (a, b) => null).then((_) {});
-  });
-
-  test('contains', () {
-    stream.contains((_) => true).then((_) {});
-  });
-
-  test('every', () {
-    stream.every((_) => true).then((_) {});
-  });
-
-  test('any', () {
-    stream.any((_) => true).then((_) {});
-  });
-
-  test('length', () {
-    stream.length.then((_) {});
-  });
-
-  test('isEmpty', () {
-    stream.isEmpty.then((_) {});
-  });
-
-  test('toList', () {
-    stream.toList().then((_) {});
-  });
-
-  test('toSet', () {
-    stream.toSet().then((_) {});
-  });
-
-  test('take', () {
-    stream.take(1).listen((_) {});
-  });
-
-  test('takeWhile', () {
-    stream.takeWhile((_) => false).listen((_) {});
-  });
-
-  test('skip', () {
-    stream.skip(0).listen((_) {});
-  });
-
-  test('skipWhile', () {
-    stream.skipWhile((_) => false).listen((_) {});
-  });
-
-  test('distinct', () {
-    stream.distinct((a, b) => false).listen((_) {});
-  });
-
-  test('first', () {
-    stream.first.then((_) {});
-  });
-
-  test('last', () {
-    stream.last.then((_) {});
-  });
-
-  test('single', () {
-    stream.single.then((_) {});
-  });
-
-  test('firstWhere', () {
-    stream.firstWhere((_) => true).then((_) {});
-  });
-
-  test('lastWhere', () {
-    stream.lastWhere((_) => true).then((_) {});
-  });
-
-  test('singleWhere', () {
-    stream.singleWhere((_) => true).then((_) {});
-  });
-
-  test('elementAt', () {
-    stream.elementAt(0).then((_) {});
-  });
-}
diff --git a/tests/lib_2/html/svg_test.dart b/tests/lib_2/html/svg_test.dart
deleted file mode 100644
index 77c092a2a05..00000000000
--- a/tests/lib_2/html/svg_test.dart
+++ /dev/null
@@ -1,132 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:svg' as svg;
-
-import 'package:expect/minitest.dart';
-
-main() {
-  group('svgPresence', () {
-    var isSvgElement = predicate((x) => x is svg.SvgElement, 'is a SvgElement');
-
-    test('simpleRect', () {
-      var div = new Element.tag('div');
-      document.body.append(div);
-      div.setInnerHtml(r'''
-<svg id='svg1' width='200' height='100'>
-<rect id='rect1' x='10' y='20' width='130' height='40' rx='5'fill='blue'></rect>
-</svg>
-''', validator: new NodeValidatorBuilder()..allowSvg());
-
-      var e = document.querySelector('#svg1');
-      expect(e, isNotNull);
-
-      svg.RectElement r = document.querySelector('#rect1');
-      expect(r.x.baseVal.value, 10);
-      expect(r.y.baseVal.value, 20);
-      expect(r.height.baseVal.value, 40);
-      expect(r.width.baseVal.value, 130);
-      expect(r.rx.baseVal.value, 5);
-    });
-
-    test('trailing newline', () {
-      // Ensures that we handle SVG with trailing newlines.
-      var logo = new svg.SvgElement.svg("""
-        <svg xmlns='http://www.w3.org/2000/svg' version='1.1'>
-          <path/>
-        </svg>
-        """);
-
-      expect(logo, isSvgElement);
-    });
-  });
-
-  group('svgInterfaceMatch', () {
-    // Test that SVG elements explicitly implement the IDL interfaces (is-checks
-    // only, see SVGTest3 for behavioural tests).
-    insertTestDiv() {
-      var element = new Element.tag('div');
-      element.setInnerHtml(r'''
-<svg id='svg1' width='200' height='100'>
-<rect id='rect1' x='10' y='20' width='130' height='40' rx='5'fill='blue'></rect>
-</svg>
-''', validator: new NodeValidatorBuilder()..allowSvg());
-      document.body.append(element);
-      return element;
-    }
-
-    var isElement = predicate((x) => x is Element, 'is an Element');
-    var isSvgElement = predicate((x) => x is svg.SvgElement, 'is a SvgElement');
-    var isSvgSvgElement =
-        predicate((x) => x is svg.SvgSvgElement, 'is a SvgSvgElement');
-    var isNotSvgSvgElement =
-        predicate((x) => x is! svg.SvgSvgElement, 'is not a SvgSvgElement');
-    var isNode = predicate((x) => x is Node, 'is a Node');
-    var isSvgNumber = predicate((x) => x is svg.Number, 'is a svg.Number');
-    var isNotSvgNumber =
-        predicate((x) => x is! svg.Number, 'is not a svg.Number');
-    var isSvgRect = predicate((x) => x is svg.Rect, 'is a svg.Rect');
-    var isNotSvgRect = predicate((x) => x is! svg.Rect, 'is not a svg.Rect');
-
-    test('rect_isChecks', () {
-      var div = insertTestDiv();
-      var r = document.querySelector('#rect1');
-
-      // Direct inheritance chain
-      expect(r, isSvgElement);
-      expect(r, isElement);
-      expect(r, isNode);
-
-      // Interfaces not implemented.
-      expect(r, isNotSvgNumber);
-      expect(r, isNotSvgRect);
-      expect(r, isNotSvgSvgElement);
-
-      div.remove();
-    });
-  });
-
-  insertTestDiv() {
-    var element = new Element.tag('div');
-    element.innerHtml = r'''
-<svg id='svg1' width='200' height='100'>
-<rect id='rect1' x='10' y='20' width='130' height='40' rx='5'fill='blue'></rect>
-</svg>
-''';
-    document.body.append(element);
-    return element;
-  }
-
-  group('svgBehavioral', () {
-    // Test that SVG elements have the operations advertised through all the IDL
-    // interfaces.  This is a 'duck typing' test, and does not explicitly use
-    // 'is' checks on the expected interfaces (that is in the test group above).
-
-    var isString = predicate((x) => x is String, 'is a String');
-    var isStringList = predicate((x) => x is List<String>, 'is a List<String>');
-    var isSvgMatrix = predicate((x) => x is svg.Matrix, 'is a svg.Matrix');
-    var isSvgAnimatedBoolean =
-        predicate((x) => x is svg.AnimatedBoolean, 'is an svg.AnimatedBoolean');
-    var isSvgAnimatedString =
-        predicate((x) => x is svg.AnimatedString, 'is an svg.AnimatedString');
-    var isSvgRect = predicate((x) => x is svg.Rect, 'is a svg.Rect');
-    var isSvgAnimatedTransformList = predicate(
-        (x) => x is svg.AnimatedTransformList,
-        'is an svg.AnimatedTransformList');
-    var isCssStyleDeclaration =
-        predicate((x) => x is CssStyleDeclaration, 'is a CssStyleDeclaration');
-
-    testRect(name, checker) {
-      test(name, () {
-        var div = insertTestDiv();
-        var r = document.querySelector('#rect1');
-        checker(r);
-        div.remove();
-      });
-    }
-  });
-}
diff --git a/tests/lib_2/html/svgelement_test.dart b/tests/lib_2/html/svgelement_test.dart
deleted file mode 100644
index cac547d3b95..00000000000
--- a/tests/lib_2/html/svgelement_test.dart
+++ /dev/null
@@ -1,482 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:svg' as svg;
-
-import 'package:expect/minitest.dart';
-
-main() {
-  var isSvgSvgElement =
-      predicate((x) => x is svg.SvgSvgElement, 'is a SvgSvgElement');
-
-  List<String> _nodeStrings(Iterable<Node> input) {
-    final out = <String>[];
-    for (Node n in input) {
-      if (n is Element) {
-        Element e = n;
-        out.add(e.tagName);
-      } else {
-        out.add(n.text);
-      }
-    }
-    return out;
-  }
-
-  ;
-
-  testConstructor(String tagName, Function isExpectedClass,
-      [bool expectation = true, allowsInnerHtml = true]) {
-    test(tagName, () {
-      expect(isExpectedClass(new svg.SvgElement.tag(tagName)), expectation);
-      if (allowsInnerHtml) {
-        expect(isExpectedClass(new svg.SvgElement.svg('<$tagName></$tagName>')),
-            expectation && allowsInnerHtml);
-      }
-    });
-  }
-
-  group('additionalConstructors', () {
-    test('valid', () {
-      final svgContent = "<svg version=\"1.1\">\n"
-          "  <circle></circle>\n"
-          "  <path></path>\n"
-          "</svg>";
-      final el = new svg.SvgElement.svg(svgContent);
-      expect(el, isSvgSvgElement);
-      expect(
-          el.innerHtml,
-          anyOf([
-            "<circle></circle><path></path>",
-            '<circle '
-                'xmlns="http://www.w3.org/2000/svg" /><path '
-                'xmlns="http://www.w3.org/2000/svg" />'
-          ]));
-      expect(
-          el.outerHtml,
-          anyOf([
-            svgContent,
-            '<svg xmlns="http://www.w3.org/2000/svg" version="1.1">\n  '
-                '<circle />\n  <path />\n</svg>'
-          ]));
-    });
-
-    test('has no parent',
-        () => expect(new svg.SvgElement.svg('<circle/>').parent, isNull));
-
-    test('empty', () {
-      expect(() => new svg.SvgElement.svg(""), throwsStateError);
-    });
-
-    test('too many elements', () {
-      expect(() => new svg.SvgElement.svg("<circle></circle><path></path>"),
-          throwsStateError);
-    });
-  });
-
-  // Unfortunately, because the filtering mechanism in unittest is a regex done
-  group('supported_animate', () {
-    test('supported', () {
-      expect(svg.AnimateElement.supported, true);
-    });
-  });
-
-  group('supported_animateMotion', () {
-    test('supported', () {
-      expect(svg.AnimateMotionElement.supported, true);
-    });
-  });
-
-  group('supported_animateTransform', () {
-    test('supported', () {
-      expect(svg.AnimateTransformElement.supported, true);
-    });
-  });
-
-  group('supported_feBlend', () {
-    test('supported', () {
-      expect(svg.FEBlendElement.supported, true);
-    });
-  });
-
-  group('supported_feColorMatrix', () {
-    test('supported', () {
-      expect(svg.FEColorMatrixElement.supported, true);
-    });
-  });
-
-  group('supported_feComponentTransfer', () {
-    test('supported', () {
-      expect(svg.FEComponentTransferElement.supported, true);
-    });
-  });
-
-  group('supported_feConvolveMatrix', () {
-    test('supported', () {
-      expect(svg.FEConvolveMatrixElement.supported, true);
-    });
-  });
-
-  group('supported_feDiffuseLighting', () {
-    test('supported', () {
-      expect(svg.FEDiffuseLightingElement.supported, true);
-    });
-  });
-
-  group('supported_feDisplacementMap', () {
-    test('supported', () {
-      expect(svg.FEDisplacementMapElement.supported, true);
-    });
-  });
-
-  group('supported_feDistantLight', () {
-    test('supported', () {
-      expect(svg.FEDistantLightElement.supported, true);
-    });
-  });
-
-  group('supported_feFlood', () {
-    test('supported', () {
-      expect(svg.FEFloodElement.supported, true);
-    });
-  });
-
-  group('supported_feFuncA', () {
-    test('supported', () {
-      expect(svg.FEFuncAElement.supported, true);
-    });
-  });
-
-  group('supported_feFuncB', () {
-    test('supported', () {
-      expect(svg.FEFuncBElement.supported, true);
-    });
-  });
-
-  group('supported_feFuncG', () {
-    test('supported', () {
-      expect(svg.FEFuncGElement.supported, true);
-    });
-  });
-
-  group('supported_feFuncR', () {
-    test('supported', () {
-      expect(svg.FEFuncRElement.supported, true);
-    });
-  });
-
-  group('supported_feGaussianBlur', () {
-    test('supported', () {
-      expect(svg.FEGaussianBlurElement.supported, true);
-    });
-  });
-
-  group('supported_feImage', () {
-    test('supported', () {
-      expect(svg.FEImageElement.supported, true);
-    });
-  });
-
-  group('supported_feMerge', () {
-    test('supported', () {
-      expect(svg.FEMergeElement.supported, true);
-    });
-  });
-
-  group('supported_feMergeNode', () {
-    test('supported', () {
-      expect(svg.FEMergeNodeElement.supported, true);
-    });
-  });
-
-  group('supported_feOffset', () {
-    test('supported', () {
-      expect(svg.FEOffsetElement.supported, true);
-    });
-  });
-
-  group('supported_feComponentTransfer', () {
-    test('supported', () {
-      expect(svg.FEPointLightElement.supported, true);
-    });
-  });
-
-  group('supported_feSpecularLighting', () {
-    test('supported', () {
-      expect(svg.FESpecularLightingElement.supported, true);
-    });
-  });
-
-  group('supported_feComponentTransfer', () {
-    test('supported', () {
-      expect(svg.FESpotLightElement.supported, true);
-    });
-  });
-
-  group('supported_feTile', () {
-    test('supported', () {
-      expect(svg.FETileElement.supported, true);
-    });
-  });
-
-  group('supported_feTurbulence', () {
-    test('supported', () {
-      expect(svg.FETurbulenceElement.supported, true);
-    });
-  });
-
-  group('supported_filter', () {
-    test('supported', () {
-      expect(svg.FilterElement.supported, true);
-    });
-  });
-
-  group('supported_foreignObject', () {
-    test('supported', () {
-      expect(svg.ForeignObjectElement.supported, true);
-    });
-  });
-
-  group('supported_set', () {
-    test('supported', () {
-      expect(svg.SetElement.supported, true);
-    });
-  });
-
-  group('constructors', () {
-    testConstructor('a', (e) => e is svg.AElement);
-    testConstructor('circle', (e) => e is svg.CircleElement);
-    testConstructor('clipPath', (e) => e is svg.ClipPathElement);
-    testConstructor('defs', (e) => e is svg.DefsElement);
-    testConstructor('desc', (e) => e is svg.DescElement);
-    testConstructor('ellipse', (e) => e is svg.EllipseElement);
-    testConstructor('g', (e) => e is svg.GElement);
-    testConstructor('image', (e) => e is svg.ImageElement);
-    testConstructor('line', (e) => e is svg.LineElement);
-    testConstructor('linearGradient', (e) => e is svg.LinearGradientElement);
-    testConstructor('marker', (e) => e is svg.MarkerElement);
-    testConstructor('mask', (e) => e is svg.MaskElement);
-    testConstructor('path', (e) => e is svg.PathElement);
-    testConstructor('pattern', (e) => e is svg.PatternElement);
-    testConstructor('polygon', (e) => e is svg.PolygonElement);
-    testConstructor('polyline', (e) => e is svg.PolylineElement);
-    testConstructor('radialGradient', (e) => e is svg.RadialGradientElement);
-    testConstructor('rect', (e) => e is svg.RectElement);
-    test('script', () {
-      expect(new svg.SvgElement.tag('script') is svg.ScriptElement, isTrue);
-    });
-    testConstructor('stop', (e) => e is svg.StopElement);
-    testConstructor('style', (e) => e is svg.StyleElement);
-    testConstructor('switch', (e) => e is svg.SwitchElement);
-    testConstructor('symbol', (e) => e is svg.SymbolElement);
-    testConstructor('tspan', (e) => e is svg.TSpanElement);
-    testConstructor('text', (e) => e is svg.TextElement);
-    testConstructor('textPath', (e) => e is svg.TextPathElement);
-    testConstructor('title', (e) => e is svg.TitleElement);
-    testConstructor('use', (e) => e is svg.UseElement);
-    testConstructor('view', (e) => e is svg.ViewElement);
-    // TODO(alanknight): Issue 23144
-    testConstructor('animate', (e) => e is svg.AnimateElement,
-        svg.AnimateElement.supported);
-    testConstructor('animateMotion', (e) => e is svg.AnimateMotionElement,
-        svg.AnimateMotionElement.supported);
-    testConstructor('animateTransform', (e) => e is svg.AnimateTransformElement,
-        svg.AnimateTransformElement.supported);
-    testConstructor('feBlend', (e) => e is svg.FEBlendElement,
-        svg.FEBlendElement.supported);
-    testConstructor('feColorMatrix', (e) => e is svg.FEColorMatrixElement,
-        svg.FEColorMatrixElement.supported);
-    testConstructor(
-        'feComponentTransfer',
-        (e) => e is svg.FEComponentTransferElement,
-        svg.FEComponentTransferElement.supported);
-    testConstructor('feConvolveMatrix', (e) => e is svg.FEConvolveMatrixElement,
-        svg.FEConvolveMatrixElement.supported);
-    testConstructor(
-        'feDiffuseLighting',
-        (e) => e is svg.FEDiffuseLightingElement,
-        svg.FEDiffuseLightingElement.supported);
-    testConstructor(
-        'feDisplacementMap',
-        (e) => e is svg.FEDisplacementMapElement,
-        svg.FEDisplacementMapElement.supported);
-    testConstructor('feDistantLight', (e) => e is svg.FEDistantLightElement,
-        svg.FEDistantLightElement.supported);
-    testConstructor('feFlood', (e) => e is svg.FEFloodElement,
-        svg.FEFloodElement.supported);
-    testConstructor('feFuncA', (e) => e is svg.FEFuncAElement,
-        svg.FEFuncAElement.supported);
-    testConstructor('feFuncB', (e) => e is svg.FEFuncBElement,
-        svg.FEFuncBElement.supported);
-    testConstructor('feFuncG', (e) => e is svg.FEFuncGElement,
-        svg.FEFuncGElement.supported);
-    testConstructor('feFuncR', (e) => e is svg.FEFuncRElement,
-        svg.FEFuncRElement.supported);
-    testConstructor('feGaussianBlur', (e) => e is svg.FEGaussianBlurElement,
-        svg.FEGaussianBlurElement.supported);
-    testConstructor('feImage', (e) => e is svg.FEImageElement,
-        svg.FEImageElement.supported);
-    testConstructor('feMerge', (e) => e is svg.FEMergeElement,
-        svg.FEMergeElement.supported);
-    testConstructor('feMergeNode', (e) => e is svg.FEMergeNodeElement,
-        svg.FEMergeNodeElement.supported);
-    testConstructor('feOffset', (e) => e is svg.FEOffsetElement,
-        svg.FEOffsetElement.supported);
-    testConstructor('fePointLight', (e) => e is svg.FEPointLightElement,
-        svg.FEPointLightElement.supported);
-    testConstructor(
-        'feSpecularLighting',
-        (e) => e is svg.FESpecularLightingElement,
-        svg.FESpecularLightingElement.supported);
-    testConstructor('feSpotLight', (e) => e is svg.FESpotLightElement,
-        svg.FESpotLightElement.supported);
-    testConstructor(
-        'feTile', (e) => e is svg.FETileElement, svg.FETileElement.supported);
-    testConstructor('feTurbulence', (e) => e is svg.FETurbulenceElement,
-        svg.FETurbulenceElement.supported);
-    testConstructor(
-        'filter', (e) => e is svg.FilterElement, svg.FilterElement.supported);
-    testConstructor('foreignObject', (e) => e is svg.ForeignObjectElement,
-        svg.ForeignObjectElement.supported, false);
-    testConstructor('metadata', (e) => e is svg.MetadataElement);
-    testConstructor(
-        'set', (e) => e is svg.SetElement, svg.SetElement.supported);
-  });
-
-  group('outerHtml', () {
-    test('outerHtml', () {
-      final el = new svg.SvgSvgElement();
-      el.children.add(new svg.CircleElement());
-      el.children.add(new svg.PathElement());
-      expect(
-          [
-            '<svg version="1.1"><circle></circle><path></path></svg>',
-            '<svg xmlns="http://www.w3.org/2000/svg" version="1.1">'
-                '<circle /><path /></svg>',
-          ].contains(el.outerHtml),
-          true);
-    });
-  });
-
-  group('innerHtml', () {
-    test('get', () {
-      final el = new svg.SvgSvgElement();
-      el.children.add(new svg.CircleElement());
-      el.children.add(new svg.PathElement());
-      // Allow for odd IE serialization.
-      expect(
-          [
-            '<circle></circle><path></path>',
-            '<circle xmlns="http://www.w3.org/2000/svg" />'
-                '<path xmlns="http://www.w3.org/2000/svg" />'
-          ].contains(el.innerHtml),
-          true);
-    });
-
-    test('set', () {
-      final el = new svg.SvgSvgElement();
-      el.children.add(new svg.CircleElement());
-      el.children.add(new svg.PathElement());
-      el.innerHtml = '<rect></rect><a></a>';
-      expect(_nodeStrings(el.children), ["rect", "a"]);
-    });
-  });
-
-  group('elementget', () {
-    test('get', () {
-      final el = new svg.SvgElement.svg("""
-<svg version="1.1">
-  <circle></circle>
-  <path></path>
-  text
-</svg>""");
-      expect(_nodeStrings(el.children), ["circle", "path"]);
-    });
-
-    test('resize', () {
-      var el = new svg.SvgSvgElement();
-      var items = [new svg.CircleElement(), new svg.RectElement()];
-      el.children = items;
-      expect(el.children.length, 2);
-      el.children.length = 1;
-      expect(el.children.length, 1);
-      expect(el.children.contains(items[0]), true);
-      expect(el.children.contains(items[1]), false);
-
-      el.children.length = 0;
-      expect(el.children.contains(items[0]), false);
-    });
-  });
-
-  group('elementset', () {
-    test('set', () {
-      final el = new svg.SvgSvgElement();
-      el.children = [
-        new svg.SvgElement.tag("circle"),
-        new svg.SvgElement.tag("path")
-      ];
-      expect(el.nodes.length, 2);
-      expect(el.nodes[0] is svg.CircleElement, true);
-      expect(el.nodes[1] is svg.PathElement, true);
-    });
-  });
-
-  group('css', () {
-    test('classes', () {
-      var el = new svg.CircleElement();
-      var classes = el.classes;
-      expect(el.classes.length, 0);
-      classes.toggle('foo');
-      expect(el.classes.length, 1);
-      classes.toggle('foo');
-      expect(el.classes.length, 0);
-    });
-
-    test('classes-add-bad', () {
-      var el = new svg.CircleElement();
-      expect(() => el.classes.add(''), throws);
-      expect(() => el.classes.add('foo bar'), throws);
-    });
-    test('classes-remove-bad', () {
-      var el = new svg.CircleElement();
-      expect(() => el.classes.remove(''), throws);
-      expect(() => el.classes.remove('foo bar'), throws);
-    });
-    test('classes-toggle-token', () {
-      var el = new svg.CircleElement();
-      expect(() => el.classes.toggle(''), throws);
-      expect(() => el.classes.toggle('', true), throws);
-      expect(() => el.classes.toggle('', false), throws);
-      expect(() => el.classes.toggle('foo bar'), throws);
-      expect(() => el.classes.toggle('foo bar', true), throws);
-      expect(() => el.classes.toggle('foo bar', false), throws);
-    });
-    test('classes-contains-bad', () {
-      var el = new svg.CircleElement();
-      // Non-strings => false, strings must be valid tokens.
-      expect(el.classes.contains(1), isFalse);
-      expect(() => el.classes.contains(''), throws);
-      expect(() => el.classes.contains('foo bar'), throws);
-    });
-  });
-
-  group('getBoundingClientRect', () {
-    test('is a Rectangle', () {
-      var element = new svg.RectElement();
-      element.attributes['width'] = '100';
-      element.attributes['height'] = '100';
-      var root = new svg.SvgSvgElement();
-      root.append(element);
-
-      document.body.append(root);
-
-      var rect = element.getBoundingClientRect();
-      expect(rect is Rectangle, isTrue);
-      expect(rect.width, closeTo(100, 1));
-      expect(rect.height, closeTo(100, 1));
-    });
-  });
-}
diff --git a/tests/lib_2/html/table_test.dart b/tests/lib_2/html/table_test.dart
deleted file mode 100644
index 65b40e59490..00000000000
--- a/tests/lib_2/html/table_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('createTBody', () {
-    var table = new TableElement();
-    var head = table.createTHead();
-    expect(table.tHead, head);
-
-    var headerRow = head.addRow();
-    var headerCell = headerRow.addCell();
-    headerCell.text = 'Header Cell';
-
-    var caption = table.createCaption();
-    expect(table.caption, caption);
-
-    var body = table.createTBody();
-    expect(table.tBodies.length, 1);
-    expect(table.tBodies[0], body);
-
-    var bodyRow = body.addRow();
-    expect(body.rows.length, 1);
-    expect(body.rows[0], bodyRow);
-
-    var bodyCell = bodyRow.addCell();
-    bodyCell.text = 'Body Cell';
-    expect(bodyRow.cells.length, 1);
-    expect(bodyRow.cells[0], bodyCell);
-
-    var foot = table.createTFoot();
-    expect(table.tFoot, foot);
-
-    var footerRow = foot.addRow();
-    expect(foot.rows.length, 1);
-    expect(foot.rows[0], footerRow);
-
-    var footerCell = footerRow.addCell();
-    footerCell.text = 'Footer Cell';
-    expect(footerRow.cells.length, 1);
-    expect(footerRow.cells[0], footerCell);
-
-    var body2 = table.createTBody();
-    var bodyRow2 = body2.addRow();
-    var bodyCell2 = bodyRow2.addCell();
-    bodyCell2.text = 'Body Cell2';
-
-    expect(body2.rows.length, 1);
-
-    expect(table.tBodies.length, 2);
-    expect(table.tBodies[1], body2);
-  });
-}
diff --git a/tests/lib_2/html/text_event_test.dart b/tests/lib_2/html/text_event_test.dart
deleted file mode 100644
index 911e45d2af2..00000000000
--- a/tests/lib_2/html/text_event_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-import 'event_test.dart';
-
-main() {
-  eventTest('TextEvent', () => new TextEvent('foo', view: window, data: 'data'),
-      (ev) {
-    expect(ev.data, 'data');
-  });
-}
diff --git a/tests/lib_2/html/touchevent_test.dart b/tests/lib_2/html/touchevent_test.dart
deleted file mode 100644
index 4df7b4ac9e5..00000000000
--- a/tests/lib_2/html/touchevent_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('Basic TouchEvent', () {
-    if (TouchEvent.supported) {
-      var e = new TouchEvent('touch');
-      expect(e is TouchEvent, isTrue);
-    }
-  });
-}
diff --git a/tests/lib_2/html/track_element_constructor_test.dart b/tests/lib_2/html/track_element_constructor_test.dart
deleted file mode 100644
index 21201dc7694..00000000000
--- a/tests/lib_2/html/track_element_constructor_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// A regression test for dart2js generating illegal JavaScript code
-// dynamically in non-csp mode.  The name of the field "defaultValue"
-// in JavaScript is "default".  This meant that dart2js would create a
-// constructor function that looked like this:
-//
-// function TrackElement(default) { this.default = default; }
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-void main() {
-  test('', () {
-    if (!TrackElement.supported) return;
-    document.body.append(new TrackElement()..defaultValue = true);
-    var trackElement = document.querySelector('track') as TrackElement;
-    if (!trackElement.defaultValue) {
-      throw 'Expected default value to be true';
-    }
-    trackElement.defaultValue = false;
-    if (trackElement.defaultValue) {
-      throw 'Expected default value to be false';
-    }
-  });
-}
diff --git a/tests/lib_2/html/transferables_test.dart b/tests/lib_2/html/transferables_test.dart
deleted file mode 100644
index 01006a2b2f0..00000000000
--- a/tests/lib_2/html/transferables_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library TransferableTest;
-
-import 'dart:async';
-import 'dart:html';
-import 'dart:typed_data';
-
-import 'package:expect/minitest.dart';
-
-var isByteBuffer = predicate((x) => x is ByteBuffer, 'is an ByteBuffer');
-
-Future testTransferableTest() {
-  final buffer = (new Float32List(3)).buffer;
-  window.postMessage(
-      {'id': 'transferable data', 'buffer': buffer}, '*', [buffer]);
-
-  return window.onMessage.firstWhere((e) {
-    return e.data is Map && e.data['id'] == 'transferable data';
-  }).then((messageEvent) {
-    expect(messageEvent.data['buffer'], isByteBuffer);
-  });
-}
-
-main() async {
-  if (Platform.supportsTypedData) {
-    await testTransferableTest();
-  }
-}
diff --git a/tests/lib_2/html/transition_event_test.dart b/tests/lib_2/html/transition_event_test.dart
deleted file mode 100644
index 876165f0e61..00000000000
--- a/tests/lib_2/html/transition_event_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file
-
-// @dart = 2.9
-
-library transition_event_test;
-
-import 'dart:html';
-import 'dart:async';
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/minitest.dart';
-
-Future testTransitionEnd() async {
-  var element = new DivElement();
-  document.body.append(element);
-
-  element.style.opacity = '0';
-  element.style.width = '100px';
-  element.style.height = '100px';
-  element.style.background = 'red';
-  element.style.transition = 'opacity .1s';
-  final eventFuture = element.onTransitionEnd.first;
-  await Future.delayed(const Duration(milliseconds: 100));
-  element.style.opacity = '1';
-  final e = await eventFuture;
-  expect(e is TransitionEvent, isTrue);
-  expect(e.propertyName, 'opacity');
-}
-
-main() {
-  asyncTest(() async {
-    expect(CssStyleDeclaration.supportsTransitions, isTrue);
-    if (CssStyleDeclaration.supportsTransitions) {
-      await testTransitionEnd();
-    }
-  });
-}
diff --git a/tests/lib_2/html/trusted_html_tree_sanitizer_test.dart b/tests/lib_2/html/trusted_html_tree_sanitizer_test.dart
deleted file mode 100644
index 64b85158fc7..00000000000
--- a/tests/lib_2/html/trusted_html_tree_sanitizer_test.dart
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// This tests HTML validation and sanitization, which is very important
-/// for prevent XSS or other attacks. If you suppress this, or parts of it
-/// please make it a critical bug and bring it to the attention of the
-/// dart:html maintainers.
-import 'dart:js' as js;
-import 'dart:html';
-import 'dart:svg' as svg;
-
-import 'package:expect/minitest.dart';
-
-import 'utils.dart';
-
-var oldAdoptNode;
-var jsDocument;
-
-/// We want to verify that with the trusted sanitizer we are not
-/// creating a document fragment. So make DocumentFragment operation
-/// throw.
-makeDocumentFragmentAdoptionThrow() {
-  var document = js.context['document'];
-  jsDocument = new js.JsObject.fromBrowserObject(document);
-  oldAdoptNode = jsDocument['adoptNode'];
-  jsDocument['adoptNode'] = null;
-}
-
-restoreOldAdoptNode() {
-  jsDocument['adoptNode'] = oldAdoptNode;
-}
-
-main() {
-  group('not_create_document_fragment', () {
-    setUp(makeDocumentFragmentAdoptionThrow);
-    tearDown(restoreOldAdoptNode);
-
-    test('setInnerHtml', () {
-      document.body.setInnerHtml('<div foo="baz">something</div>',
-          treeSanitizer: NodeTreeSanitizer.trusted);
-      expect(document.body.innerHtml, '<div foo="baz">something</div>');
-    });
-
-    test("appendHtml", () {
-      var oldStuff = document.body.innerHtml;
-      var newStuff = '<div rumplestiltskin="value">content</div>';
-      document.body
-          .appendHtml(newStuff, treeSanitizer: NodeTreeSanitizer.trusted);
-      expect(document.body.innerHtml, oldStuff + newStuff);
-    });
-  });
-
-  group('untrusted', () {
-    setUp(makeDocumentFragmentAdoptionThrow);
-    tearDown(restoreOldAdoptNode);
-    test('untrusted', () {
-      expect(() => document.body.innerHtml = "<p>anything</p>", throws);
-    });
-  });
-}
diff --git a/tests/lib_2/html/typed_arrays_1_test.dart b/tests/lib_2/html/typed_arrays_1_test.dart
deleted file mode 100644
index b3800b275f5..00000000000
--- a/tests/lib_2/html/typed_arrays_1_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:typed_data';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  var isList = predicate((x) => x is List, 'is a List');
-  var isNumList = predicate((x) => x is List<num>, 'is a List<num>');
-  var isNotStringList =
-      predicate((x) => x is! List<String>, 'is not a List<String>');
-  var expectation = Platform.supportsTypedData ? returnsNormally : throws;
-
-  group('supported', () {
-    test('supported', () {
-      expect(Platform.supportsTypedData, true);
-    });
-  });
-
-  group('arrays', () {
-    test('createByLengthTest', () {
-      expect(() {
-        var a = new Float32List(10);
-        expect(a.length, 10);
-        expect(a.lengthInBytes, 40);
-        expect(a[4], 0);
-      }, expectation);
-    });
-
-    test('aliasTest', () {
-      expect(() {
-        var a1 = new Uint8List.fromList([0, 0, 1, 0x45]);
-        var a2 = new Float32List.view(a1.buffer);
-
-        expect(a1.lengthInBytes, a2.lengthInBytes);
-
-        expect(a2.length, 1);
-
-        // 0x45010000 = 2048+16
-        expect(a2[0], 2048 + 16);
-
-        a1[2] = 0;
-        // 0x45000000 = 2048
-        expect(a2[0], 2048);
-
-        a1[3]--;
-        a1[2] += 128;
-        // 0x44800000 = 1024
-        expect(a2[0], 1024);
-      }, expectation);
-    });
-
-    // Generic type checking is not available in dart2js, so use this check to
-    // see if we should check for it.
-    var supportsTypeTest = !(<String>[] is List<int>);
-
-    if (supportsTypeTest) {
-      test('typeTests', () {
-        expect(() {
-          var a = new Float32List(10);
-          expect(a, isList);
-          expect(a, isNumList);
-          expect(a, isNotStringList);
-        }, expectation);
-      });
-    }
-  });
-}
diff --git a/tests/lib_2/html/typed_arrays_2_test.dart b/tests/lib_2/html/typed_arrays_2_test.dart
deleted file mode 100644
index c941c163d71..00000000000
--- a/tests/lib_2/html/typed_arrays_2_test.dart
+++ /dev/null
@@ -1,85 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:typed_data';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  // Only perform tests if ArrayBuffer is supported.
-  if (!Platform.supportsTypedData) {
-    return;
-  }
-
-  test('viewTest_dynamic', () {
-    var a1 = new Uint8List(1024);
-    for (int i = 0; i < a1.length; i++) {
-      a1[i] = i; // 0,1,2,...,254,255,0,1,2,...
-    }
-
-    var a2 = new Uint32List.view(a1.buffer);
-    expect(1024 ~/ 4, a2.length);
-    expect(a2[0], 0x03020100);
-    expect(a2[1], 0x07060504);
-    expect(a2[2], 0x0B0A0908);
-    expect(a2[50], 0xCBCAC9C8);
-    expect(a2[51], 0xCFCECDCC);
-    expect(a2[64], 0x03020100);
-
-    a2 = new Uint32List.view(a1.buffer, 200);
-    expect(a2.length, (1024 - 200) ~/ 4);
-    expect(a2[0], 0xCBCAC9C8);
-    expect(a2[1], 0xCFCECDCC);
-    expect(a2[14], 0x03020100);
-
-    a2 = new Uint32List.view(a1.buffer, 456, 20);
-    expect(a2.length, 20);
-    expect(a2[0], 0xCBCAC9C8);
-    expect(a2[1], 0xCFCECDCC);
-    expect(a2[14], 0x03020100);
-
-    // OPTIONALS a2 = new Uint32List.view(a1.buffer, length: 30, byteOffset: 456);
-    a2 = new Uint32List.view(a1.buffer, 456, 30);
-    expect(a2.length, 30);
-    expect(a2[0], 0xCBCAC9C8);
-    expect(a2[1], 0xCFCECDCC);
-    expect(a2[14], 0x03020100);
-  });
-
-  test('viewTest_typed', () {
-    Uint8List a1 = new Uint8List(1024);
-    for (int i = 0; i < a1.length; i++) {
-      a1[i] = i;
-    }
-
-    Uint32List a2 = new Uint32List.view(a1.buffer);
-    expect(a2.length, 1024 ~/ 4);
-    expect(a2[0], 0x03020100);
-    expect(a2[50], 0xCBCAC9C8);
-    expect(a2[51], 0xCFCECDCC);
-    expect(a2[64], 0x03020100);
-
-    a2 = new Uint32List.view(a1.buffer, 200);
-    expect(a2.length, (1024 - 200) ~/ 4);
-    expect(a2[0], 0xCBCAC9C8);
-    expect(a2[1], 0xCFCECDCC);
-    expect(a2[14], 0x03020100);
-
-    a2 = new Uint32List.view(a1.buffer, 456, 20);
-    expect(20, a2.length);
-    expect(a2[0], 0xCBCAC9C8);
-    expect(a2[1], 0xCFCECDCC);
-    expect(a2[14], 0x03020100);
-
-    // OPTIONALS a2 = new Uint32List.view(a1.buffer, length: 30, byteOffset: 456);
-    a2 = new Uint32List.view(a1.buffer, 456, 30);
-    expect(a2.length, 30);
-    expect(a2[0], 0xCBCAC9C8);
-    expect(a2[1], 0xCFCECDCC);
-    expect(a2[14], 0x03020100);
-  });
-}
diff --git a/tests/lib_2/html/typed_arrays_3_test.dart b/tests/lib_2/html/typed_arrays_3_test.dart
deleted file mode 100644
index 86d0115e65a..00000000000
--- a/tests/lib_2/html/typed_arrays_3_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:typed_data';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  // Only perform tests if ArrayBuffer is supported.
-  if (!Platform.supportsTypedData) {
-    return;
-  }
-
-  test('setElementsTest_dynamic', () {
-    var a1 = new Int8List(1024);
-
-    a1.setRange(4, 7, [0x50, 0x60, 0x70]);
-
-    var a2 = new Uint32List.view(a1.buffer);
-    expect(a2[0], 0x00000000);
-    expect(a2[1], 0x00706050);
-
-    a2.setRange(2, 3, [0x01020304]);
-    expect(a1[8], 0x04);
-    expect(a1[11], 0x01);
-  });
-
-  test('setElementsTest_typed', () {
-    Int8List a1 = new Int8List(1024);
-
-    a1.setRange(4, 7, [0x50, 0x60, 0x70]);
-
-    Uint32List a2 = new Uint32List.view(a1.buffer);
-    expect(a2[0], 0x00000000);
-    expect(a2[1], 0x00706050);
-
-    a2.setRange(2, 3, [0x01020304]);
-    expect(a1[8], 0x04);
-    expect(a1[11], 0x01);
-  });
-}
diff --git a/tests/lib_2/html/typed_arrays_4_test.dart b/tests/lib_2/html/typed_arrays_4_test.dart
deleted file mode 100644
index 90010f1d4c7..00000000000
--- a/tests/lib_2/html/typed_arrays_4_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:typed_data';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  // Only perform tests if ArrayBuffer is supported.
-  if (!Platform.supportsTypedData) {
-    return;
-  }
-
-  test('indexOf_dynamic', () {
-    var a1 = new Uint8List(1024);
-    for (int i = 0; i < a1.length; i++) {
-      a1[i] = i;
-    }
-
-    expect(a1.indexOf(50), 50);
-    expect(a1.indexOf(50, 50), 50);
-    expect(a1.indexOf(50, 51), 256 + 50);
-
-    expect(a1.lastIndexOf(50), 768 + 50);
-    expect(a1.lastIndexOf(50, 768 + 50), 768 + 50);
-    expect(a1.lastIndexOf(50, 768 + 50 - 1), 512 + 50);
-  });
-
-  test('indexOf_typed', () {
-    Uint8List a1 = new Uint8List(1024);
-    for (int i = 0; i < a1.length; i++) {
-      a1[i] = i;
-    }
-
-    expect(a1.indexOf(50), 50);
-    expect(a1.indexOf(50, 50), 50);
-    expect(a1.indexOf(50, 51), 256 + 50);
-
-    expect(a1.lastIndexOf(50), 768 + 50);
-    expect(a1.lastIndexOf(50, 768 + 50), 768 + 50);
-    expect(a1.lastIndexOf(50, 768 + 50 - 1), 512 + 50);
-  });
-}
diff --git a/tests/lib_2/html/typed_arrays_5_test.dart b/tests/lib_2/html/typed_arrays_5_test.dart
deleted file mode 100644
index 43dfec67992..00000000000
--- a/tests/lib_2/html/typed_arrays_5_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:typed_data';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  // Only perform tests if ArrayBuffer is supported.
-  if (!Platform.supportsTypedData) {
-    return;
-  }
-
-  test('filter_dynamic', () {
-    var a = new Float32List(1024);
-    for (int i = 0; i < a.length; i++) {
-      a[i] = i.toDouble();
-    }
-
-    expect(a.where((x) => x >= 1000).length, equals(24));
-  });
-
-  test('filter_typed', () {
-    Float32List a = new Float32List(1024);
-    for (int i = 0; i < a.length; i++) {
-      a[i] = i.toDouble();
-    }
-
-    expect(a.where((x) => x >= 1000).length, equals(24));
-  });
-
-  test('contains', () {
-    var a = new Int16List(1024);
-    for (int i = 0; i < a.length; i++) {
-      a[i] = i;
-    }
-    expect(a.contains(0), isTrue);
-    expect(a.contains(5), isTrue);
-    expect(a.contains(1023), isTrue);
-
-    expect(a.contains(-5), isFalse);
-    expect(a.contains(-1), isFalse);
-    expect(a.contains(1024), isFalse);
-  });
-}
diff --git a/tests/lib_2/html/typed_arrays_arraybuffer_test.dart b/tests/lib_2/html/typed_arrays_arraybuffer_test.dart
deleted file mode 100644
index 120ae7260e7..00000000000
--- a/tests/lib_2/html/typed_arrays_arraybuffer_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:typed_data';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  // Only perform tests if ArrayBuffer is supported.
-  if (!Platform.supportsTypedData) {
-    return;
-  }
-
-  test('constructor', () {
-    var a = new Int8List(100);
-    expect(a.lengthInBytes, 100);
-  });
-
-  test('sublist1', () {
-    var a = new Int8List(100);
-    var s = a.sublist(10, 40);
-    expect(s.length, 30);
-  });
-
-  test('sublist2', () {
-    var a = new Int8List(100);
-    expect(() => a.sublist(10, 400), throwsRangeError);
-  });
-
-  test('sublist3', () {
-    var a = new Int8List(100);
-    expect(() => a.sublist(50, 10), throwsRangeError);
-  });
-
-  test('sublist4', () {
-    var a = new Int8List(100);
-    expect(() => a.sublist(-90, -30), throwsRangeError);
-  });
-}
diff --git a/tests/lib_2/html/typed_arrays_dataview_test.dart b/tests/lib_2/html/typed_arrays_dataview_test.dart
deleted file mode 100644
index 6fb847ab59f..00000000000
--- a/tests/lib_2/html/typed_arrays_dataview_test.dart
+++ /dev/null
@@ -1,90 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:typed_data';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  // Only perform tests if ArrayBuffer is supported.
-  if (!Platform.supportsTypedData) {
-    return;
-  }
-
-  test('create', () {
-    var bd = new ByteData(100);
-    expect(bd.lengthInBytes, 100);
-    expect(bd.offsetInBytes, 0);
-
-    var a1 = new Uint8List.fromList([1, 2, 3, 4, 5, 6, 7, 8]);
-
-    var bd2 = new ByteData.view(a1.buffer);
-    expect(bd2.lengthInBytes, 8);
-    expect(bd2.offsetInBytes, 0);
-
-    var bd3 = new ByteData.view(a1.buffer, 2);
-    expect(bd3.lengthInBytes, 6);
-    expect(bd3.offsetInBytes, 2);
-
-    var bd4 = new ByteData.view(a1.buffer, 3, 4);
-    expect(bd4.lengthInBytes, 4);
-    expect(bd4.offsetInBytes, 3);
-  });
-
-  test('access8', () {
-    var a1 = new Uint8List.fromList([0, 0, 3, 255, 0, 0, 0, 0, 0, 0]);
-
-    var bd = new ByteData.view(a1.buffer, 2, 6);
-
-    expect(bd.getInt8(0), equals(3));
-    expect(bd.getInt8(1), equals(-1));
-    expect(bd.getUint8(0), equals(3));
-    expect(bd.getUint8(1), equals(255));
-
-    bd.setInt8(2, -56);
-    expect(bd.getInt8(2), equals(-56));
-    expect(bd.getUint8(2), equals(200));
-
-    bd.setUint8(3, 200);
-    expect(bd.getInt8(3), equals(-56));
-    expect(bd.getUint8(3), equals(200));
-  });
-
-  test('access16', () {
-    var a1 = new Uint8List.fromList([0, 0, 3, 255, 0, 0, 0, 0, 0, 0]);
-
-    var bd = new ByteData.view(a1.buffer, 2);
-
-    expect(bd.lengthInBytes, equals(10 - 2));
-
-    expect(bd.getInt16(0), equals(1023));
-    expect(bd.getInt16(0, Endian.big), equals(1023));
-    expect(bd.getInt16(0, Endian.little), equals(-253));
-
-    expect(bd.getUint16(0), equals(1023));
-    expect(bd.getUint16(0, Endian.big), equals(1023));
-    expect(bd.getUint16(0, Endian.little), equals(0xFF03));
-
-    bd.setInt16(2, -1);
-    expect(bd.getInt16(2), equals(-1));
-    expect(bd.getUint16(2), equals(0xFFFF));
-  });
-
-  test('access32', () {
-    var a1 = new Uint8List.fromList([0, 0, 3, 255, 0, 0, 0, 0, 0, 0]);
-
-    var bd = new ByteData.view(a1.buffer);
-
-    expect(bd.getInt32(0), equals(1023));
-    expect(bd.getInt32(0, Endian.big), equals(1023));
-    expect(bd.getInt32(0, Endian.little), equals(-0xFD0000));
-
-    expect(bd.getUint32(0), equals(1023));
-    expect(bd.getUint32(0, Endian.big), equals(1023));
-    expect(bd.getUint32(0, Endian.little), equals(0xFF030000));
-  });
-}
diff --git a/tests/lib_2/html/typed_arrays_range_checks_test.dart b/tests/lib_2/html/typed_arrays_range_checks_test.dart
deleted file mode 100644
index b47ec92e20f..00000000000
--- a/tests/lib_2/html/typed_arrays_range_checks_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:typed_data';
-
-import 'package:expect/minitest.dart';
-
-const N = 1024;
-
-class _TestList {
-  _TestList(int n);
-
-  operator [](int i) => i;
-  operator []=(int i, v) {}
-}
-
-_obfuscatedList() {
-  var a = new Uint8List(N);
-  var b = new _TestList(N);
-  var k = 0;
-  for (int i = 0; i < 10; ++i) {
-    k += i;
-  }
-  return (k == 45) ? a : b;
-}
-
-main() {
-  // Only perform tests if ArrayBuffer is supported.
-  if (!Platform.supportsTypedData) {
-    return;
-  }
-
-  test('outOfRangeAccess', () {
-    var a = _obfuscatedList();
-
-    expect(() => a[a.length], throws);
-    expect(() => a[a.length + 1], throws);
-    expect(() => a[a.length + N], throws);
-
-    expect(() => a[-1], throws);
-    expect(() => a[1.5], throws);
-    expect(() => a['length'], throws);
-
-    expect(() => a[a.length] = 0xdeadbeef, throws);
-    expect(() => a[a.length + 1] = 0xdeadbeef, throws);
-    expect(() => a[a.length + N] = 0xdeadbeef, throws);
-
-    expect(() => a[-1] = 0xdeadbeef, throws);
-    expect(() => a[1.5] = 0xdeadbeef, throws);
-    expect(() => a['length'] = 1, throws);
-  });
-}
diff --git a/tests/lib_2/html/typed_arrays_simd_test.dart b/tests/lib_2/html/typed_arrays_simd_test.dart
deleted file mode 100644
index 2be5121b7f9..00000000000
--- a/tests/lib_2/html/typed_arrays_simd_test.dart
+++ /dev/null
@@ -1,84 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:typed_data';
-
-import 'package:expect/minitest.dart';
-
-const _FLOATING_POINT_ERROR = 0.0000000001;
-floatEquals(value) => closeTo(value, _FLOATING_POINT_ERROR);
-
-class MyFloat32x4 {
-  num x = 0.0;
-  num y = 0.0;
-  num z = 0.0;
-  num w = 0.0;
-}
-
-main() {
-  // Only perform tests if ArrayBuffer is supported.
-  if (!Platform.supportsTypedData) {
-    return;
-  }
-
-  test('test Float32x4', () {
-    if (Platform.supportsSimd) {
-      final val = new Float32x4(1.0, 2.0, 3.0, 4.0);
-      expect(val.x, floatEquals(1.0));
-      expect(val.y, floatEquals(2.0));
-      expect(val.z, floatEquals(3.0));
-      expect(val.w, floatEquals(4.0));
-      final val2 = val + val;
-      expect(val2.x, floatEquals(2.0));
-      expect(val2.y, floatEquals(4.0));
-      expect(val2.z, floatEquals(6.0));
-      expect(val2.w, floatEquals(8.0));
-    }
-  });
-
-  test('test Float32x4List', () {
-    var counter;
-    final list = new Float32List(12);
-    for (int i = 0; i < list.length; ++i) {
-      list[i] = i * 1.0;
-    }
-    if (Platform.supportsSimd) {
-      counter = new Float32x4.zero();
-      final simdlist = new Float32x4List.view(list.buffer);
-      for (int i = 0; i < simdlist.length; ++i) {
-        counter += simdlist[i];
-      }
-    } else {
-      counter = new MyFloat32x4();
-      for (int i = 0; i < list.length; i += 4) {
-        counter.x += list[i];
-        counter.y += list[i + 1];
-        counter.z += list[i + 2];
-        counter.w += list[i + 3];
-      }
-    }
-    expect(counter.x, floatEquals(12.0));
-    expect(counter.y, floatEquals(15.0));
-    expect(counter.z, floatEquals(18.0));
-    expect(counter.w, floatEquals(21.0));
-  });
-
-  test('test Int32x4', () {
-    if (Platform.supportsSimd) {
-      final val = new Int32x4(1, 2, 3, 4);
-      expect(val.x, equals(1));
-      expect(val.y, equals(2));
-      expect(val.z, equals(3));
-      expect(val.w, equals(4));
-      final val2 = val ^ val;
-      expect(val2.x, equals(0));
-      expect(val2.y, equals(0));
-      expect(val2.z, equals(0));
-      expect(val2.w, equals(0));
-    }
-  });
-}
diff --git a/tests/lib_2/html/typing_test.dart b/tests/lib_2/html/typing_test.dart
deleted file mode 100644
index de19258eb9b..00000000000
--- a/tests/lib_2/html/typing_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  var isStyleSheetList =
-      predicate((x) => x is List<StyleSheet>, 'is a List<StyleSheet>');
-
-  test('NodeList', () {
-    List<Element> asList = window.document.querySelectorAll('body');
-    // Check it's Iterable
-    int counter = 0;
-    for (Element node in window.document.querySelectorAll('body')) {
-      counter++;
-    }
-    expect(counter, 1);
-    counter = 0;
-    window.document.querySelectorAll('body').forEach((e) {
-      counter++;
-    });
-    expect(counter, 1);
-  });
-
-  test('StyleSheetList', () {
-    var document = window.document as HtmlDocument;
-    List<StyleSheet> asList = document.styleSheets;
-    expect(asList, isStyleSheetList);
-    // Check it's Iterable.
-    int counter = 0;
-    for (StyleSheet styleSheet in document.styleSheets) {
-      counter++;
-    }
-
-    // There is one style sheet from the test framework.
-    expect(counter, 1);
-  });
-}
diff --git a/tests/lib_2/html/unknownelement_test.dart b/tests/lib_2/html/unknownelement_test.dart
deleted file mode 100644
index 9eff9dd8c2f..00000000000
--- a/tests/lib_2/html/unknownelement_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  var isUnknownElement =
-      predicate((x) => x is UnknownElement, 'is an UnknownELement');
-
-  dynamic foo = new Element.tag('foo');
-  foo.id = 'foo';
-  var bar = new Element.tag('bar');
-  bar.id = 'bar';
-  document.body.nodes.addAll(<Node>[foo, bar]);
-
-  test('type-check', () {
-    expect(foo, isUnknownElement);
-    expect(bar, isUnknownElement);
-    expect(querySelector('#foo'), equals(foo));
-    expect(querySelector('#bar'), equals(bar));
-  });
-
-  test('dispatch-fail', () {
-    expect(() => foo.method1(), throwsNoSuchMethodError);
-    expect(() => foo.field1, throwsNoSuchMethodError);
-    expect(() {
-      foo.field1 = 42;
-    }, throwsNoSuchMethodError);
-  });
-}
diff --git a/tests/lib_2/html/uri_test.dart b/tests/lib_2/html/uri_test.dart
deleted file mode 100644
index aaeba310dd8..00000000000
--- a/tests/lib_2/html/uri_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('Uri.base', () {
-    expect(Uri.base.scheme, "http");
-    expect(Uri.base.toString(), window.location.href);
-  });
-}
diff --git a/tests/lib_2/html/url_test.dart b/tests/lib_2/html/url_test.dart
deleted file mode 100644
index ca23e005e80..00000000000
--- a/tests/lib_2/html/url_test.dart
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library url_test;
-
-import 'dart:async';
-import 'dart:html';
-import 'dart:typed_data';
-
-import 'package:expect/minitest.dart';
-
-Blob createImageBlob() {
-  var canvas = new CanvasElement();
-  canvas.width = 100;
-  canvas.height = 100;
-
-  var context = canvas.context2D;
-  context.fillStyle = 'red';
-  context.fillRect(0, 0, canvas.width, canvas.height);
-
-  var dataUri = canvas.toDataUrl('image/png');
-  var byteString = window.atob(dataUri.split(',')[1]);
-  var mimeString = dataUri.split(',')[0].split(':')[1].split(';')[0];
-
-  var arrayBuffer = new Uint8List(byteString.length);
-  var dataArray = new Uint8List.view(arrayBuffer.buffer);
-  for (var i = 0; i < byteString.length; i++) {
-    dataArray[i] = byteString.codeUnitAt(i);
-  }
-
-  var blob = new Blob([arrayBuffer], 'image/png');
-  return blob;
-}
-
-Future testCreateObjectUrlFromBlob() async {
-  final done = new Completer();
-  var blob = createImageBlob();
-  var url = Url.createObjectUrlFromBlob(blob);
-  expect(url.length, greaterThan(0));
-  expect(url.startsWith('blob:'), isTrue);
-
-  var img = new ImageElement();
-  img.onLoad.listen((_) {
-    expect(img.complete, true);
-    done.complete();
-  });
-  img.onError.listen((_) {
-    fail('URL failed to load.');
-  });
-  img.src = url;
-  await done.future;
-}
-
-Future testRevokeObjectUrl() async {
-  final done = new Completer();
-  var blob = createImageBlob();
-  var url = Url.createObjectUrlFromBlob(blob);
-  expect(url.startsWith('blob:'), isTrue);
-  Url.revokeObjectUrl(url);
-
-  var img = new ImageElement();
-  // Image should fail to load since the URL was revoked.
-  img.onError.listen(done.complete);
-  img.onLoad.listen((_) {
-    fail('URL should not have loaded.');
-  });
-  img.src = url;
-  await done.future;
-}
-
-main() async {
-  await testCreateObjectUrlFromBlob();
-  await testRevokeObjectUrl();
-}
diff --git a/tests/lib_2/html/utils.dart b/tests/lib_2/html/utils.dart
deleted file mode 100644
index 01b4aff71ee..00000000000
--- a/tests/lib_2/html/utils.dart
+++ /dev/null
@@ -1,157 +0,0 @@
-// @dart = 2.9
-import 'dart:html';
-import 'dart:typed_data';
-
-import 'package:expect/minitest.dart';
-
-/**
- * Verifies that [actual] has the same graph structure as [expected].
- * Detects cycles and DAG structure in Maps and Lists.
- */
-verifyGraph(expected, actual) {
-  var eItems = [];
-  var aItems = [];
-
-  message(path, reason) => path == ''
-      ? reason
-      : reason == null
-          ? "path: $path"
-          : "path: $path, $reason";
-
-  walk(path, expected, actual) {
-    if (expected is String || expected is num || expected == null) {
-      expect(actual, equals(expected), reason: message(path, 'not equal'));
-      return;
-    }
-
-    // Cycle or DAG?
-    for (int i = 0; i < eItems.length; i++) {
-      if (identical(expected, eItems[i])) {
-        expect(actual, same(aItems[i]),
-            reason: message(path, 'missing back or side edge'));
-        return;
-      }
-    }
-    for (int i = 0; i < aItems.length; i++) {
-      if (identical(actual, aItems[i])) {
-        expect(expected, same(eItems[i]),
-            reason: message(path, 'extra back or side edge'));
-        return;
-      }
-    }
-    eItems.add(expected);
-    aItems.add(actual);
-
-    if (expected is Blob) {
-      expect(actual is Blob, isTrue, reason: '$actual is Blob');
-      expect(expected.type, equals(actual.type),
-          reason: message(path, '.type'));
-      expect(expected.size, equals(actual.size),
-          reason: message(path, '.size'));
-      return;
-    }
-
-    if (expected is ByteBuffer) {
-      expect(actual is ByteBuffer, isTrue, reason: '$actual is ByteBuffer');
-      expect(expected.lengthInBytes, equals(actual.lengthInBytes),
-          reason: message(path, '.lengthInBytes'));
-      // TODO(antonm): one can create a view on top of those
-      // and check if contents identical.  Let's do it later.
-      return;
-    }
-
-    if (expected is DateTime) {
-      expect(actual is DateTime, isTrue, reason: '$actual is DateTime');
-      expect(expected.millisecondsSinceEpoch,
-          equals(actual.millisecondsSinceEpoch),
-          reason: message(path, '.millisecondsSinceEpoch'));
-      return;
-    }
-
-    if (expected is ImageData) {
-      expect(actual is ImageData, isTrue, reason: '$actual is ImageData');
-      expect(expected.width, equals(actual.width),
-          reason: message(path, '.width'));
-      expect(expected.height, equals(actual.height),
-          reason: message(path, '.height'));
-      walk('$path.data', expected.data, actual.data);
-      return;
-    }
-
-    if (expected is TypedData) {
-      expect(actual is TypedData, isTrue, reason: '$actual is TypedData');
-      walk('$path/.buffer', expected.buffer, actual.buffer);
-      expect(expected.offsetInBytes, equals(actual.offsetInBytes),
-          reason: message(path, '.offsetInBytes'));
-      expect(expected.lengthInBytes, equals(actual.lengthInBytes),
-          reason: message(path, '.lengthInBytes'));
-      // And also fallback to elements check below.
-    }
-
-    if (expected is List) {
-      expect(actual, predicate((v) => v is List),
-          reason: message(path, '$actual is List'));
-      expect(actual.length, expected.length,
-          reason: message(path, 'different list lengths'));
-      for (var i = 0; i < expected.length; i++) {
-        walk('$path[$i]', expected[i], actual[i]);
-      }
-      return;
-    }
-
-    if (expected is Map) {
-      expect(actual, predicate((v) => v is Map),
-          reason: message(path, '$actual is Map'));
-      for (var key in expected.keys) {
-        if (!actual.containsKey(key)) {
-          expect(false, isTrue, reason: message(path, 'missing key "$key"'));
-        }
-        walk('$path["$key"]', expected[key], actual[key]);
-      }
-      for (var key in actual.keys) {
-        if (!expected.containsKey(key)) {
-          expect(false, isTrue, reason: message(path, 'extra key "$key"'));
-        }
-      }
-      return;
-    }
-
-    expect(false, isTrue, reason: 'Unhandled type: $expected');
-  }
-
-  walk('', expected, actual);
-}
-
-/**
- * Sanitizer which does nothing.
- */
-class NullTreeSanitizer implements NodeTreeSanitizer {
-  void sanitizeTree(Node node) {}
-}
-
-/**
- * Validate that two DOM trees are equivalent.
- */
-void validateNodeTree(Node a, Node b, [String path = '']) {
-  path = '${path}${a.runtimeType}';
-  expect(a.nodeType, b.nodeType, reason: '$path nodeTypes differ');
-  expect(a.nodeValue, b.nodeValue, reason: '$path nodeValues differ');
-  expect(a.text, b.text, reason: '$path texts differ');
-  expect(a.nodes.length, b.nodes.length, reason: '$path nodes.lengths differ');
-
-  if (a is Element) {
-    Element bE = b;
-    Element aE = a;
-
-    expect(aE.tagName, bE.tagName, reason: '$path tagNames differ');
-    expect(aE.attributes.length, bE.attributes.length,
-        reason: '$path attributes.lengths differ');
-    for (var key in aE.attributes.keys) {
-      expect(aE.attributes[key], bE.attributes[key],
-          reason: '$path attribute [$key] values differ');
-    }
-  }
-  for (var i = 0; i < a.nodes.length; ++i) {
-    validateNodeTree(a.nodes[i], b.nodes[i], '$path[$i].');
-  }
-}
diff --git a/tests/lib_2/html/webgl_1_test.dart b/tests/lib_2/html/webgl_1_test.dart
deleted file mode 100644
index 92d417f671d..00000000000
--- a/tests/lib_2/html/webgl_1_test.dart
+++ /dev/null
@@ -1,116 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:typed_data';
-import 'dart:web_gl';
-import 'dart:web_gl' as gl;
-
-import 'package:expect/minitest.dart';
-
-// Test that WebGL is present in dart:web_gl API
-
-final isRenderingContext = predicate((x) => x is RenderingContext);
-final isContextAttributes = predicate((x) => x is Map);
-
-main() {
-  group('supported', () {
-    test('supported', () {
-      expect(RenderingContext.supported, isTrue);
-    });
-  });
-
-  group('functional', () {
-    test('unsupported fails', () {
-      var canvas = new CanvasElement();
-      var context = canvas.getContext3d();
-      if (RenderingContext.supported) {
-        expect(context, isNotNull);
-        expect(context, isRenderingContext);
-      } else {
-        expect(context, isNull);
-      }
-    });
-
-    if (RenderingContext.supported) {
-      test('simple', () {
-        var canvas = new CanvasElement();
-        var context =
-            canvas.getContext('experimental-webgl') as gl.RenderingContext;
-        expect(context, isNotNull);
-        var shader = context.createShader(gl.WebGL.VERTEX_SHADER);
-        context.shaderSource(shader, 'void main() { }');
-        context.compileShader(shader);
-        var success =
-            context.getShaderParameter(shader, gl.WebGL.COMPILE_STATUS);
-        expect(success, isTrue);
-      });
-
-      test('getContext3d', () {
-        var canvas = new CanvasElement();
-        var context = canvas.getContext3d();
-        expect(context, isNotNull);
-        expect(context, isRenderingContext);
-
-        context = canvas.getContext3d(depth: false);
-        expect(context, isNotNull);
-        expect(context, isRenderingContext);
-      });
-
-      test('texImage2D', () {
-        var canvas = new CanvasElement();
-        var context = canvas.getContext3d();
-        var pixels = new Uint8List.fromList([0, 0, 3, 255, 0, 0, 0, 0, 0, 0]);
-        context.texImage2D(1, 1, 1, 1, 10, 10, 1, 1, pixels);
-
-        canvas = new CanvasElement();
-        document.body.children.add(canvas);
-        CanvasRenderingContext2D context2 = canvas.getContext('2d');
-        context.texImage2D(
-            1, 1, 1, 1, 10, context2.getImageData(10, 10, 10, 10));
-
-        context.texImage2D(1, 1, 1, 1, 10, new ImageElement());
-        context.texImage2D(1, 1, 1, 1, 10, new CanvasElement());
-        context.texImage2D(1, 1, 1, 1, 10, new VideoElement());
-      });
-
-      test('texSubImage2D', () {
-        var canvas = new CanvasElement();
-        var context = canvas.getContext3d();
-        var pixels = new Uint8List.fromList([0, 0, 3, 255, 0, 0, 0, 0, 0, 0]);
-        context.texSubImage2D(1, 1, 1, 1, 1, 10, 10, 1, pixels);
-
-        canvas = new CanvasElement();
-        document.body.children.add(canvas);
-        CanvasRenderingContext2D context2 = canvas.getContext('2d');
-        context.texSubImage2D(
-            1, 1, 1, 1, 1, 10, context2.getImageData(10, 10, 10, 10));
-
-        context.texSubImage2D(1, 1, 1, 1, 1, 10, new ImageElement());
-        context.texSubImage2D(1, 1, 1, 1, 1, 10, new CanvasElement());
-        context.texSubImage2D(1, 1, 1, 1, 1, 10, new VideoElement());
-      });
-
-      test('getContextAttributes', () {
-        var canvas = new CanvasElement();
-        var context = canvas.getContext3d();
-        var attributes = context.getContextAttributes();
-
-        expect(attributes, isNotNull);
-        expect(attributes, isContextAttributes);
-
-        expect(attributes['alpha'], isBoolean);
-        expect(attributes['antialias'], isBoolean);
-        expect(attributes['depth'], isBoolean);
-        expect(attributes['premultipliedAlpha'], isBoolean);
-        expect(attributes['preserveDrawingBuffer'], isBoolean);
-        expect(attributes['stencil'], isBoolean);
-      });
-    }
-  });
-}
-
-final isBoolean = predicate((v) => v == true || v == false);
diff --git a/tests/lib_2/html/webgl_extensions_test.dart b/tests/lib_2/html/webgl_extensions_test.dart
deleted file mode 100644
index c9b4aa5272e..00000000000
--- a/tests/lib_2/html/webgl_extensions_test.dart
+++ /dev/null
@@ -1,207 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library web_gl_test;
-
-import 'dart:html';
-import 'dart:web_gl';
-
-import 'package:expect/minitest.dart';
-
-final isAngleInstancedArrays = (v) => v is AngleInstancedArrays;
-final isExtBlendMinMax = (v) => v is ExtBlendMinMax;
-final isExtFragDepth = (v) => v is ExtFragDepth;
-final isEXTsRgb = (v) => v is EXTsRgb;
-final isExtShaderTextureLod = (v) => v is ExtShaderTextureLod;
-final isExtTextureFilterAnisotropic = (v) => v is ExtTextureFilterAnisotropic;
-final isOesElementIndexUint = (v) => v is OesElementIndexUint;
-final isOesStandardDerivatives = (v) => v is OesStandardDerivatives;
-final isOesTextureFloat = (v) => v is OesTextureFloat;
-final isOesTextureFloatLinear = (v) => v is OesTextureFloatLinear;
-final isOesTextureHalfFloat = (v) => v is OesTextureHalfFloat;
-final isOesTextureHalfFloatLinear = (v) => v is OesTextureHalfFloatLinear;
-final isOesVertexArrayObject = (v) => v is OesVertexArrayObject;
-final isCompressedTextureAtc = (v) => v is CompressedTextureAtc;
-final isCompressedTextureETC1 = (v) => v is CompressedTextureETC1;
-final isCompressedTexturePvrtc = (v) => v is CompressedTexturePvrtc;
-final isCompressedTextureS3TC = (v) => v is CompressedTextureS3TC;
-final isDebugRendererInfo = (v) => v is DebugRendererInfo;
-final isDebugShaders = (v) => v is DebugShaders;
-final isDepthTexture = (v) => v is DepthTexture;
-final isDrawBuffers = (v) => v is DrawBuffers;
-final isLoseContext = (v) => v is LoseContext;
-
-final isFunction = predicate((v) => v is Function);
-
-// Test that various webgl extensions are available. Only test advertised
-// supported extensions. If the extension has methods, we just test the presence
-// of some methods - we don't test if functionality works.
-
-main() {
-  if (!RenderingContext.supported) return;
-
-  const allExtensions = const [
-    'ANGLE_instanced_arrays',
-    'EXT_blend_minmax',
-    'EXT_color_buffer_float',
-    'EXT_color_buffer_half_float',
-    'EXT_disjoint_timer_query',
-    'EXT_frag_depth',
-    'EXT_sRGB',
-    'EXT_shader_texture_lod',
-    'EXT_texture_filter_anisotropic',
-    'OES_element_index_uint',
-    'OES_standard_derivatives',
-    'OES_texture_float',
-    'OES_texture_float_linear',
-    'OES_texture_half_float',
-    'OES_texture_half_float_linear',
-    'OES_vertex_array_object',
-    'WEBGL_color_buffer_float',
-    'WEBGL_compressed_texture_atc',
-    'WEBGL_compressed_texture_es3',
-    'WEBGL_compressed_texture_etc1',
-    'WEBGL_compressed_texture_pvrtc',
-    'WEBGL_compressed_texture_s3tc',
-    'WEBGL_debug_renderer_info',
-    'WEBGL_debug_shaders',
-    'WEBGL_depth_texture',
-    'WEBGL_draw_buffers',
-    'WEBGL_lose_context',
-  ];
-
-  getExtension(String name) {
-    expect(name, anyOf(allExtensions), reason: 'unknown extension');
-    var canvas = new CanvasElement();
-    var context = canvas.getContext3d();
-    expect(context, isNotNull);
-    var supportedExtensions = context.getSupportedExtensions();
-    if (supportedExtensions.contains(name)) {
-      var extension = context.getExtension(name);
-      expect(extension, isNotNull);
-      return extension;
-    }
-    return null;
-  }
-
-  testType(name, typeMatcher) {
-    test('type', () {
-      var extension = getExtension(name);
-      if (extension == null) return;
-      expect(extension, predicate(typeMatcher));
-      // Ensure that isInstanceOf<X> is not instantiated for an erroneous type
-      // X.  If X is erroneous, there is only a warning at compile time and X is
-      // treated as dynamic, which would make the above line pass.
-      expect(typeMatcher(1), false, reason: 'invalid typeMatcher');
-    });
-  }
-
-  group('ANGLE_instanced_arrays', () {
-    const name = 'ANGLE_instanced_arrays';
-    testType(name, isAngleInstancedArrays);
-    test('vertexAttribDivisorAngle', () {
-      AngleInstancedArrays extension = getExtension(name);
-      if (extension == null) return;
-      expect(extension.vertexAttribDivisorAngle, isFunction);
-    });
-  });
-
-  group('EXT_blend_minmax', () {
-    testType('EXT_blend_minmax', isExtBlendMinMax);
-  });
-
-  group('EXT_frag_depth', () {
-    testType('EXT_frag_depth', isExtFragDepth);
-  });
-
-  group('EXT_sRGB', () {
-    testType('EXT_sRGB', isEXTsRgb);
-  });
-
-  group('EXT_shader_texture_lod', () {
-    testType('EXT_shader_texture_lod', isExtShaderTextureLod);
-  });
-
-  group('EXT_texture_filter_anisotropic', () {
-    testType('EXT_texture_filter_anisotropic', isExtTextureFilterAnisotropic);
-  });
-
-  group('OES_element_index_uint', () {
-    testType('OES_element_index_uint', isOesElementIndexUint);
-  });
-
-  group('OES_standard_derivatives', () {
-    testType('OES_standard_derivatives', isOesStandardDerivatives);
-  });
-
-  group('OES_texture_float', () {
-    testType('OES_texture_float', isOesTextureFloat);
-  });
-
-  group('OES_texture_float_linear', () {
-    testType('OES_texture_float_linear', isOesTextureFloatLinear);
-  });
-
-  group('OES_texture_half_float', () {
-    testType('OES_texture_half_float', isOesTextureHalfFloat);
-  });
-
-  group('OES_texture_half_float_linear', () {
-    testType('OES_texture_half_float_linear', isOesTextureHalfFloatLinear);
-  });
-
-  group('OES_vertex_array_object', () {
-    testType('OES_vertex_array_object', isOesVertexArrayObject);
-  });
-
-  group('WEBGL_compressed_texture_atc', () {
-    testType('WEBGL_compressed_texture_atc', isCompressedTextureAtc);
-  });
-
-  group('WEBGL_compressed_texture_etc1', () {
-    testType('WEBGL_compressed_texture_etc1', isCompressedTextureETC1);
-  });
-
-  group('WEBGL_compressed_texture_pvrtc', () {
-    testType('WEBGL_compressed_texture_pvrtc', isCompressedTexturePvrtc);
-  });
-
-  group('WEBGL_compressed_texture_s3tc', () {
-    testType('WEBGL_compressed_texture_s3tc', isCompressedTextureS3TC);
-  });
-
-  group('WEBGL_debug_renderer_info', () {
-    testType('WEBGL_debug_renderer_info', isDebugRendererInfo);
-  });
-
-  group('WEBGL_debug_shaders', () {
-    testType('WEBGL_debug_shaders', isDebugShaders);
-  });
-
-  group('WEBGL_depth_texture', () {
-    testType('WEBGL_depth_texture', isDepthTexture);
-  });
-
-  group('WEBGL_draw_buffers', () {
-    const name = 'WEBGL_draw_buffers';
-    testType(name, isDrawBuffers);
-    test('drawBuffersWebgl', () {
-      DrawBuffers extension = getExtension(name);
-      if (extension == null) return;
-      expect(extension.drawBuffersWebgl, isFunction);
-    });
-  });
-
-  group('WEBGL_lose_context', () {
-    const name = 'WEBGL_lose_context';
-    testType(name, isLoseContext);
-    test('loseContext', () {
-      LoseContext extension = getExtension(name);
-      if (extension == null) return;
-      expect(extension.loseContext, isFunction);
-    });
-  });
-}
diff --git a/tests/lib_2/html/websocket_test.dart b/tests/lib_2/html/websocket_test.dart
deleted file mode 100644
index 430ac1673ad..00000000000
--- a/tests/lib_2/html/websocket_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-
-// @dart = 2.9
-library WebSocketTest;
-
-import 'dart:html';
-
-import 'package:async_helper/async_minitest.dart';
-
-main() {
-  group('supported', () {
-    test('supported', () {
-      expect(WebSocket.supported, true);
-    });
-  });
-
-  group('websocket', () {
-    var expectation = WebSocket.supported ? returnsNormally : throws;
-
-    test('constructorTest', () {
-      expect(() {
-        var socket = new WebSocket('ws://localhost/ws', 'chat');
-        expect(socket, isNotNull);
-        expect(socket, isInstanceOf<WebSocket>());
-      }, expectation);
-    });
-
-    if (WebSocket.supported) {
-      test('echo', () {
-        var socket = new WebSocket('ws://${window.location.host}/ws');
-
-        socket.onOpen.first.then((_) {
-          socket.send('hello!');
-        });
-
-        return socket.onMessage.first.then((MessageEvent e) {
-          expect(e.data, 'hello!');
-          socket.close();
-        });
-      });
-
-      test('error handling', () {
-        var socket = new WebSocket('ws://${window.location.host}/ws');
-        socket.onOpen.first.then((_) => socket.send('close-with-error'));
-        return socket.onError.first.then((e) {
-          print('$e was caught, yay!');
-          socket.close();
-        });
-      });
-    }
-  });
-}
diff --git a/tests/lib_2/html/websql_static_test.dart b/tests/lib_2/html/websql_static_test.dart
deleted file mode 100644
index 9acdce64315..00000000000
--- a/tests/lib_2/html/websql_static_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:web_sql';
-//     ^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.URI_DOES_NOT_EXIST
-// [cfe] Not found: 'dart:web_sql'
-
-void main() {}
diff --git a/tests/lib_2/html/wheelevent_test.dart b/tests/lib_2/html/wheelevent_test.dart
deleted file mode 100644
index 7c817b0552c..00000000000
--- a/tests/lib_2/html/wheelevent_test.dart
+++ /dev/null
@@ -1,84 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library wheel_event_test;
-
-import 'dart:async';
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-Future testWheelEvent() async {
-  final done = new Completer();
-  var element = new DivElement();
-  var eventType = Element.mouseWheelEvent.getEventType(element);
-
-  element.onMouseWheel.listen((e) {
-    try {
-      expect(e.screen.x, 100);
-      expect(e.deltaX, 0);
-      expect(e.deltaY.toDouble(), 240.0);
-      expect(e.deltaMode, WheelEvent.DOM_DELTA_PAGE);
-      done.complete();
-    } catch (e) {
-      done.completeError(e);
-    }
-  });
-  var event = new WheelEvent(eventType,
-      deltaX: 0,
-      deltaY: 240,
-      deltaMode: WheelEvent.DOM_DELTA_PAGE,
-      screenX: 100);
-  element.dispatchEvent(event);
-  await done.future;
-}
-
-Future testWheelEventWithDeltaZ() async {
-  final done = new Completer();
-  var element = new DivElement();
-  var eventType = Element.mouseWheelEvent.getEventType(element);
-
-  element.onMouseWheel.listen((e) {
-    try {
-      expect(e.deltaX, 0);
-      expect(e.deltaY, 0);
-      expect(e.screen.x, 0);
-      expect(e.deltaZ.toDouble(), 1.0);
-      done.complete();
-    } catch (e) {
-      done.completeError(e);
-    }
-  });
-  var event = new WheelEvent(eventType, deltaZ: 1.0);
-  element.dispatchEvent(event);
-  await done.future;
-}
-
-Future testWheelEventStream() async {
-  final done = new Completer();
-  var element = new DivElement();
-  var eventType = Element.mouseWheelEvent.getEventType(element);
-
-  element.onMouseWheel.listen((e) {
-    try {
-      expect(e.screen.x, 100);
-      expect(e.deltaX.toDouble(), 240.0);
-      expect(e.deltaY, 0);
-      done.complete();
-    } catch (e) {
-      done.completeError(e);
-    }
-  });
-  var event = new WheelEvent(eventType, deltaX: 240, deltaY: 0, screenX: 100);
-  element.dispatchEvent(event);
-  await done.future;
-}
-
-main() async {
-  await testWheelEvent();
-  await testWheelEventWithDeltaZ();
-  await testWheelEventStream();
-}
diff --git a/tests/lib_2/html/window_eq_test.dart b/tests/lib_2/html/window_eq_test.dart
deleted file mode 100644
index 4da731e3442..00000000000
--- a/tests/lib_2/html/window_eq_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  var obfuscated = null;
-
-  test('notNull', () {
-    expect(window, isNotNull);
-    expect(window != obfuscated, isTrue);
-  });
-}
diff --git a/tests/lib_2/html/window_mangling_test.dart b/tests/lib_2/html/window_mangling_test.dart
deleted file mode 100644
index 686e5aeb2ce..00000000000
--- a/tests/lib_2/html/window_mangling_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html' as dom;
-
-import 'package:expect/minitest.dart';
-
-// Defined in dom.Window.
-get navigator => "Dummy";
-
-$eq(x, y) => false;
-$eq$(x, y) => false;
-
-main() {
-  var win = dom.window;
-
-  test('windowMethod', () {
-    final message = navigator;
-    final x = win.navigator;
-    expect(x, notEquals(message));
-  });
-
-  test('windowEquals', () {
-    expect($eq(win, win), isFalse);
-    expect(win == win, isTrue);
-  });
-
-  test('windowEquals', () {
-    expect($eq$(win, win), isFalse);
-    expect(win == win, isTrue);
-  });
-}
diff --git a/tests/lib_2/html/window_nosuchmethod_test.dart b/tests/lib_2/html/window_nosuchmethod_test.dart
deleted file mode 100644
index 29bf584b89e..00000000000
--- a/tests/lib_2/html/window_nosuchmethod_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html' as dom;
-
-import 'package:expect/minitest.dart';
-
-// Not defined in dom.Window.
-foo(x) => x;
-
-class Unused {
-  foo(x) => 'not $x';
-}
-
-int inscrutable(int x) => x == 0 ? 0 : x | inscrutable(x & (x - 1));
-
-main() {
-  var things = <dynamic>[new Unused(), dom.window];
-
-  test('windowNonMethod', () {
-    var win = things[inscrutable(1)];
-    final message = foo("Hello World");
-    expect(() => win.foo(message), throwsNoSuchMethodError);
-  });
-
-  test('foo', () {
-    var win = things[inscrutable(0)];
-    String x = win.foo('bar');
-    expect(x, 'not bar');
-  });
-
-  // Use dom.window directly in case the compiler does type inference.
-  test('windowNonMethod2', () {
-    final message = foo("Hello World");
-    expect(() => (dom.window as dynamic).foo(message), throwsNoSuchMethodError);
-  });
-}
diff --git a/tests/lib_2/html/window_test.dart b/tests/lib_2/html/window_test.dart
deleted file mode 100644
index 154cba6fe8a..00000000000
--- a/tests/lib_2/html/window_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  test('scrollXY', () {
-    expect(window.scrollX, 0);
-    expect(window.scrollY, 0);
-  });
-  test('open', () {
-    final valid = window.open('', 'blank');
-    valid.closed;
-    // A blank page with no access to the original window (noopener) should
-    // result in null.
-    final invalid = window.open('', 'invalid', 'noopener=true');
-    try {
-      // Should result in an exception since the underlying window is null.
-      invalid.closed;
-      fail('Expected invalid.closed to throw.');
-    } on NullWindowException {}
-  });
-}
diff --git a/tests/lib_2/html/worker_api_test.dart b/tests/lib_2/html/worker_api_test.dart
deleted file mode 100644
index 2db5aa1d495..00000000000
--- a/tests/lib_2/html/worker_api_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:html';
-import 'dart:isolate';
-
-import 'package:async_helper/async_minitest.dart';
-
-worker(message) {
-  var uri = message[0];
-  var replyTo = message[1];
-  try {
-    var url = Url.createObjectUrl(new Blob([''], 'application/javascript'));
-    Url.revokeObjectUrl(url);
-    replyTo.send('Hello from Worker');
-  } catch (e) {
-    replyTo.send('Error: $e');
-  }
-}
-
-main() {
-  test('Use Worker API in Worker', () {
-    var response = new ReceivePort();
-    var remote = Isolate.spawn(worker, ['', response.sendPort]);
-    remote.then((_) => response.first).then(
-        expectAsync((reply) => expect(reply, equals('Hello from Worker'))));
-  });
-}
diff --git a/tests/lib_2/html/worker_functional_test.dart b/tests/lib_2/html/worker_functional_test.dart
deleted file mode 100644
index 090b361529d..00000000000
--- a/tests/lib_2/html/worker_functional_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library worker_test;
-
-import 'package:async_helper/async_minitest.dart';
-import 'dart:html';
-
-main() {
-  var workerScript = '''postMessage('WorkerMessage');''';
-
-  test('unsupported', () {
-    if (!Worker.supported) {
-      expect(() => new Worker('worker.js'), throws);
-    } else {
-      new Worker('worker.js').onError.first.then(expectAsync((e) {
-        // This event is expected, "worker.js" doesn't exist.  But the event
-        // *sometimes* propagates to window.onerror in Firefox which causes
-        // this test to fail, so let's stop any further propagation:
-        e.preventDefault();
-        e.stopImmediatePropagation();
-      }));
-    }
-  });
-
-  if (!Worker.supported) return;
-
-  test('works', () {
-    // Use Blob to make a local URL so we don't have to have a separate file.
-    // This does not work on browsers using CSP (Content Security Policy).
-    var blob = new Blob([workerScript], 'text/javascript');
-    var url = Url.createObjectUrl(blob);
-    var worker = new Worker(url);
-    var test = expectAsync((e) {
-      expect(e.data, 'WorkerMessage');
-    });
-    worker.onMessage.first.then(test);
-  });
-}
diff --git a/tests/lib_2/html/worker_supported_test.dart b/tests/lib_2/html/worker_supported_test.dart
deleted file mode 100644
index df11390f559..00000000000
--- a/tests/lib_2/html/worker_supported_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library worker_test;
-
-import 'package:expect/minitest.dart';
-import 'dart:html';
-
-main() {
-  test('supported', () {
-    expect(Worker.supported, isTrue);
-  });
-}
diff --git a/tests/lib_2/html/wrapping_collections_test.dart b/tests/lib_2/html/wrapping_collections_test.dart
deleted file mode 100644
index 1a30504d244..00000000000
--- a/tests/lib_2/html/wrapping_collections_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-import 'dart:html_common';
-import 'dart:js' as js;
-
-import 'package:expect/minitest.dart';
-
-/// Test that if we access objects through JS-interop we get the
-/// appropriate objects, even if dart:html maps them.
-main() {
-  test("Access through JS-interop", () {
-    var performance = js.context['performance'];
-    var entries = performance.callMethod('getEntries', const []);
-    entries.forEach((x) {
-      expect(x is js.JsObject, isTrue);
-    });
-  });
-}
diff --git a/tests/lib_2/html/xhr_cross_origin_data.txt b/tests/lib_2/html/xhr_cross_origin_data.txt
deleted file mode 100644
index 5872d9667cd..00000000000
--- a/tests/lib_2/html/xhr_cross_origin_data.txt
+++ /dev/null
@@ -1 +0,0 @@
-{"version":"1.0","encoding":"UTF-8","feed":{"xmlns":"http://www.w3.org/2005/Atom","xmlns$openSearch":"http://a9.com/-/spec/opensearch/1.1/","xmlns$gd":"http://schemas.google.com/g/2005","xmlns$issues":"http://schemas.google.com/projecthosting/issues/2009","id":{"$t":"http://code.google.com/feeds/issues/p/dart/issues/full"},"updated":{"$t":"2012-10-17T19:55:25.326Z"},"title":{"$t":"Issues - dart"},"subtitle":{"$t":"Issues - dart"},"link":[{"rel":"alternate","type":"text/html","href":"http://code.google.com/p/dart/issues/list"},{"rel":"http://schemas.google.com/g/2005#feed","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full"},{"rel":"http://schemas.google.com/g/2005#post","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full"},{"rel":"self","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full?alt=json&max-results=25"},{"rel":"next","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full?alt=json&start-index=26&max-results=25"}],"generator":{"$t":"ProjectHosting","version":"1.0","uri":"http://code.google.com/feeds/issues"},"openSearch$totalResults":{"$t":6004},"openSearch$startIndex":{"$t":1},"openSearch$itemsPerPage":{"$t":25},"entry":[{"gd$etag":"W/\"CE8DRX47eCl7ImA9WhdaEEw.\"","id":{"$t":"http://code.google.com/feeds/issues/p/dart/issues/full/1"},"published":{"$t":"2011-10-06T15:11:23.000Z"},"updated":{"$t":"2011-10-19T08:27:54.000Z"},"title":{"$t":"Process tests sometimes cause timeout on Linux"},"content":{"$t":"Either of the process tests\r\n\r\n  ProcessExitTest.dart\r\n  ProcessSegfaultTest.dart\r\n  ProcessStartExceptionTest.dart\r\n  ProcessStderrTest.dart\r\n  ProcessStdoutTest.dart\r\n\r\ncan hang on Linux. It happens once every ~25 runs.","type":"html"},"link":[{"rel":"replies","type":"application/atom+xml","href":"http://code.google.com/feeds/issues/p/dart/issues/1/comments/full"},{"rel":"alternate","type":"text/html","href":"http://code.google.com/p/dart/issues/detail?id=1"},{"rel":"self","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full/1"}],"author":[{"name":{"$t":"sgjesse@google.com"},"uri":{"$t":"/u/sgjesse@google.com/"}}],"issues$cc":[{"issues$uri":{"$t":"/u/100337825224881731112/"},"issues$username":{"$t":"fmal...@google.com"}}],"issues$closedDate":{"$t":"2011-10-19T08:27:54.000Z"},"issues$id":{"$t":1},"issues$label":[{"$t":"Type-Defect"},{"$t":"Priority-Medium"}],"issues$owner":{"issues$uri":{"$t":"/u/sgjesse@google.com/"},"issues$username":{"$t":"sgjesse@google.com"}},"issues$stars":{"$t":1},"issues$state":{"$t":"closed"},"issues$status":{"$t":"Fixed"}},{"gd$etag":"W/\"DUUAQH47eCl7ImA9WhdUGUU.\"","id":{"$t":"http://code.google.com/feeds/issues/p/dart/issues/full/2"},"published":{"$t":"2011-10-07T07:53:55.000Z"},"updated":{"$t":"2011-10-07T11:34:01.000Z"},"title":{"$t":"EchoServer tests occasionally crash on Windows"},"content":{"$t":"The EchoServer tests occasionally hits what should be an unreachable path.","type":"html"},"link":[{"rel":"replies","type":"application/atom+xml","href":"http://code.google.com/feeds/issues/p/dart/issues/2/comments/full"},{"rel":"alternate","type":"text/html","href":"http://code.google.com/p/dart/issues/detail?id=2"},{"rel":"self","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full/2"}],"author":[{"name":{"$t":"ager@google.com"},"uri":{"$t":"/u/ager@google.com/"}}],"issues$cc":[{"issues$uri":{"$t":"/u/sgjesse@google.com/"},"issues$username":{"$t":"sgjesse@google.com"}}],"issues$closedDate":{"$t":"2011-10-07T11:34:01.000Z"},"issues$id":{"$t":2},"issues$label":[{"$t":"Type-Defect"},{"$t":"Priority-High"},{"$t":"OpSys-Windows"}],"issues$owner":{"issues$uri":{"$t":"/u/ager@google.com/"},"issues$username":{"$t":"ager@google.com"}},"issues$stars":{"$t":1},"issues$state":{"$t":"closed"},"issues$status":{"$t":"Fixed"}},{"gd$etag":"W/\"DUYMQH47eCl7ImA9WhdbFE8.\"","id":{"$t":"http://code.google.com/feeds/issues/p/dart/issues/full/3"},"published":{"$t":"2011-10-10T10:34:32.000Z"},"updated":{"$t":"2011-10-12T13:46:21.000Z"},"title":{"$t":"Dart_Snapshot conflicting uses"},"content":{"$t":"Trying to build Dart after clean checkout from SVN gives me :\r\n\r\nruntime/vm/dart_api_impl.cc: In function ‘void* dart::Dart_CreateIsolate(void*, void*)’:\r\nruntime/vm/dart_api_impl.cc:38:71: error: declaration of ‘void* dart::Dart_CreateIsolate(void*, void*)’ with C language linkage\r\nruntime/include/dart_api.h:185:26: error: conflicts with previous declaration ‘void* Dart_CreateIsolate(const Dart_Snapshot*, void*)’\r\n\r\nI ended up changing the dart_api_impl.cc declaration to use const Dart_Snapshot* and did a cast to (void*) in order to call Dart::CreateIsolate((void*)snapshot, data);","type":"html"},"link":[{"rel":"replies","type":"application/atom+xml","href":"http://code.google.com/feeds/issues/p/dart/issues/3/comments/full"},{"rel":"alternate","type":"text/html","href":"http://code.google.com/p/dart/issues/detail?id=3"},{"rel":"self","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full/3"}],"author":[{"name":{"$t":"nelson.s...@gmail.com"},"uri":{"$t":"/u/114313790760784276282/"}}],"issues$closedDate":{"$t":"2011-10-11T15:43:38.000Z"},"issues$id":{"$t":3},"issues$label":[{"$t":"Type-Defect"},{"$t":"Priority-Medium"}],"issues$owner":{"issues$uri":{"$t":"/u/asiva@google.com/"},"issues$username":{"$t":"asiva@google.com"}},"issues$stars":{"$t":13},"issues$state":{"$t":"closed"},"issues$status":{"$t":"Fixed"}},{"gd$etag":"W/\"Dk4MRn47eCl7ImA9WhdbEkk.\"","id":{"$t":"http://code.google.com/feeds/issues/p/dart/issues/full/4"},"published":{"$t":"2011-10-10T10:44:36.000Z"},"updated":{"$t":"2011-10-10T11:09:47.000Z"},"title":{"$t":"Not-implemented iteration for objects"},"content":{"$t":"\u003cb\u003eWhat steps will reproduce the problem?\u003c/b\u003e\n\r\n  main() {\r\n    var obj = {&quot;a&quot;: 1, &quot;b&quot;: 2};\r\n    for (var key in obj) {\r\n      print(key);\r\n    }\r\n  }\r\nhttp://try-dart-lang.appspot.com/s/EmEO\r\n\r\nWhat is the expected output?\r\na\r\nb\r\n\r\nWhat do you see instead?\r\nNoSuchMethodException - receiver: '' function name: 'iterator$named' arguments: []]\r\n\r\n\u003cb\u003eWhat version of the product are you using? On what operating system?\u003c/b\u003e\nOnline dart compiler.\r\n\r\n\u003cb\u003ePlease provide any additional information below.\u003c/b\u003e\n\r\nIn the specification it says that &quot;for in&quot; construct is desugared into var n0 = e.iterator(); while (n0.hasNext()) { finalVarOrType id = n0.next();\r\nIt is not working because obj.iterator does not exist.","type":"html"},"link":[{"rel":"replies","type":"application/atom+xml","href":"http://code.google.com/feeds/issues/p/dart/issues/4/comments/full"},{"rel":"alternate","type":"text/html","href":"http://code.google.com/p/dart/issues/detail?id=4"},{"rel":"self","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full/4"}],"author":[{"name":{"$t":"vjeuxx"},"uri":{"$t":"/u/vjeuxx/"}}],"issues$closedDate":{"$t":"2011-10-10T11:09:47.000Z"},"issues$id":{"$t":4},"issues$label":[{"$t":"Type-Defect"},{"$t":"Priority-Medium"}],"issues$stars":{"$t":1},"issues$state":{"$t":"closed"},"issues$status":{"$t":"Invalid"}},{"gd$etag":"W/\"AkIGQH47eCl7ImA9WhdbEks.\"","id":{"$t":"http://code.google.com/feeds/issues/p/dart/issues/full/5"},"published":{"$t":"2011-10-10T11:03:05.000Z"},"updated":{"$t":"2011-10-10T17:42:01.000Z"},"title":{"$t":"Variables in single/double quotes."},"content":{"$t":"Can we use the PHP view that single quotes don't contain variables, but double quotes do... this may help the parser in speed, but more importantly it means the programmer doesn't have to check for and escape variables in single quoted strings.","type":"html"},"link":[{"rel":"replies","type":"application/atom+xml","href":"http://code.google.com/feeds/issues/p/dart/issues/5/comments/full"},{"rel":"alternate","type":"text/html","href":"http://code.google.com/p/dart/issues/detail?id=5"},{"rel":"self","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full/5"}],"author":[{"name":{"$t":"cr...@craigfrancis.co.uk"},"uri":{"$t":"/u/105349735893558381122/"}}],"issues$closedDate":{"$t":"2011-10-10T17:42:01.000Z"},"issues$id":{"$t":5},"issues$label":[{"$t":"Type-Defect"},{"$t":"Priority-Medium"}],"issues$stars":{"$t":3},"issues$state":{"$t":"closed"},"issues$status":{"$t":"WontFix"}},{"gd$etag":"W/\"DEIGQX47eCl7ImA9WhRTEUg.\"","id":{"$t":"http://code.google.com/feeds/issues/p/dart/issues/full/6"},"published":{"$t":"2011-10-10T11:38:13.000Z"},"updated":{"$t":"2011-11-01T14:08:40.000Z"},"title":{"$t":"Type checking is broken"},"content":{"$t":"Use dartc_test to run:\r\n\r\nbool foo(bool bar()) =&gt; bar();\r\n\r\nbool bar() {}\r\n\r\nmain() {\r\n  foo(bar);\r\n}\r\n\r\nwith --enable_type_checks.\r\n\r\nAn error is thrown because the type of bar is not bool.\r\n","type":"html"},"link":[{"rel":"replies","type":"application/atom+xml","href":"http://code.google.com/feeds/issues/p/dart/issues/6/comments/full"},{"rel":"alternate","type":"text/html","href":"http://code.google.com/p/dart/issues/detail?id=6"},{"rel":"self","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full/6"}],"author":[{"name":{"$t":"benl@google.com"},"uri":{"$t":"/u/benl@google.com/"}}],"issues$closedDate":{"$t":"2011-11-01T14:08:40.000Z"},"issues$id":{"$t":6},"issues$label":[{"$t":"Type-Defect"},{"$t":"Priority-Medium"},{"$t":"Area-Compiler"}],"issues$owner":{"issues$uri":{"$t":"/u/jat@google.com/"},"issues$username":{"$t":"jat@google.com"}},"issues$stars":{"$t":1},"issues$state":{"$t":"closed"},"issues$status":{"$t":"Fixed"}},{"gd$etag":"W/\"DEEAQH47eCl7ImA9WhdbFE8.\"","id":{"$t":"http://code.google.com/feeds/issues/p/dart/issues/full/7"},"published":{"$t":"2011-10-10T12:32:40.000Z"},"updated":{"$t":"2011-10-12T13:37:21.000Z"},"title":{"$t":"declaredIndentifier typos in Dart Language Specification, Draft Version 0.01, October 10th, 2011"},"content":{"$t":"\u003cb\u003eWhat steps will reproduce the problem?\u003c/b\u003e\n1. Open http://www.dartlang.org/docs/spec/dartLangSpec.pdf\r\n2. Search for &quot;indent&quot; (without the quotes)\r\n3. Notice how this should rather read ident instead.\r\n\r\n\u003cb\u003eWhat is the expected output? What do you see instead?\u003c/b\u003e\n\r\nI see what must be a typo.\r\n\r\n\u003cb\u003eWhat version of the product are you using? On what operating system?\u003c/b\u003e\n\r\nDart Programming Language Specification\r\nDraft Version 0.01\r\nThe Dart Team\r\nOctober 10th, 2011\r\n\r\n\u003cb\u003ePlease provide any additional information below.\u003c/b\u003e\n\r\nHere is a copy/paste from the pdf (with the fi ligature manually reapaired). See my (sic) annotations for where I think the typos are:\r\n\r\n11.9\r\n\r\nTry\r\n\r\nThe try statement supports the definition of exception handling code in a struc-\r\ntured way.\r\n\r\ntryStatement:\r\ntry block (catchPart+ finallyPart? | finallyPart)\r\n;\r\n\r\ncatchPart:\r\ncatch ‘(’ declaredIndentifier (sic) (‘, ’ declaredIndentifier (sic))? ‘)’ block\r\n;\r\n\r\nfinallyPart:\r\nfinally block\r\n;\r\n","type":"html"},"link":[{"rel":"replies","type":"application/atom+xml","href":"http://code.google.com/feeds/issues/p/dart/issues/7/comments/full"},{"rel":"alternate","type":"text/html","href":"http://code.google.com/p/dart/issues/detail?id=7"},{"rel":"self","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full/7"}],"author":[{"name":{"$t":"adrian.a...@gmail.com"},"uri":{"$t":"/u/114973624116584041537/"}}],"issues$closedDate":{"$t":"2011-10-12T13:37:21.000Z"},"issues$id":{"$t":7},"issues$label":[{"$t":"Type-Defect"},{"$t":"Priority-Medium"},{"$t":"Component-Docs"}],"issues$owner":{"issues$uri":{"$t":"/u/102708310591662789853/"},"issues$username":{"$t":"gbra...@google.com"}},"issues$stars":{"$t":1},"issues$state":{"$t":"closed"},"issues$status":{"$t":"Done"}},{"gd$etag":"W/\"D0QNQ347eCl7ImA9WhdbEkg.\"","id":{"$t":"http://code.google.com/feeds/issues/p/dart/issues/full/8"},"published":{"$t":"2011-10-10T12:46:09.000Z"},"updated":{"$t":"2011-10-10T14:03:12.000Z"},"title":{"$t":"Build Failure for standalone VM"},"content":{"$t":"\u003cb\u003eWhat steps will reproduce the problem?\u003c/b\u003e\n&gt; Follow steps to build VM mentioned at http://code.google.com/p/dart/wiki/Building#Building_the_standalone_VM\r\n\r\n\u003cb\u003eWhat is the expected output? What do you see instead?\u003c/b\u003e\nBuild should be success, but it fails.\r\n\r\n\u003cb\u003eWhat version of the product are you using? On what operating system?\u003c/b\u003e\nLatest version.\r\n\r\n\u003cb\u003ePlease provide any additional information below.\u003c/b\u003e\n\r\nError output:\r\n~/dart/runtime$ ../tools/build.py --arch=ia32\r\nmake -j 1 BUILDTYPE=Debug_ia32 all\r\n  CXX(target) out/Debug_ia32/obj.target/libdart/runtime/vm/dart_api_impl.o\r\ncc1plus: warnings being treated as errors\r\n../runtime/vm/dart_api_impl.cc: In function ‘void* dart::Dart_CreateIsolate(void*, void*)’:\r\n../runtime/vm/dart_api_impl.cc:38:71: error: declaration of ‘void* dart::Dart_CreateIsolate(void*, void*)’ with C language linkage\r\n../runtime/include/dart_api.h:185:26: error: conflicts with previous declaration ‘void* Dart_CreateIsolate(const Dart_Snapshot*, void*)’\r\nmake: *** [out/Debug_ia32/obj.target/libdart/runtime/vm/dart_api_impl.o] Error 1\r\nBUILD FAILED\r\n\r\n\r\nIs this a known issue? or am I doing something wrong?\r\n\r\nthanks,\r\nswarup","type":"html"},"link":[{"rel":"replies","type":"application/atom+xml","href":"http://code.google.com/feeds/issues/p/dart/issues/8/comments/full"},{"rel":"alternate","type":"text/html","href":"http://code.google.com/p/dart/issues/detail?id=8"},{"rel":"self","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full/8"}],"author":[{"name":{"$t":"me.s...@gmail.com"},"uri":{"$t":"/u/112564033093352645938/"}}],"issues$closedDate":{"$t":"2011-10-10T14:03:12.000Z"},"issues$id":{"$t":8},"issues$label":[{"$t":"Type-Defect"},{"$t":"Priority-Medium"}],"issues$mergedInto":{"issues$id":{"$t":3},"issues$project":{"$t":"dart"}},"issues$stars":{"$t":2},"issues$state":{"$t":"closed"},"issues$status":{"$t":"Duplicate"}},{"gd$etag":"W/\"CEMMQH47eCl7ImA9WhdbE0g.\"","id":{"$t":"http://code.google.com/feeds/issues/p/dart/issues/full/9"},"published":{"$t":"2011-10-10T13:08:33.000Z"},"updated":{"$t":"2011-10-11T17:01:21.000Z"},"title":{"$t":"\"variable set but not used\" error during build of VM"},"content":{"$t":"\u003cb\u003eWhat steps will reproduce the problem?\u003c/b\u003e\n1. &gt; Follow steps to build VM mentioned at http://code.google.com/p/dart/wiki/Building#Building_the_standalone_VM\r\n\r\n\u003cb\u003eWhat is the expected output? What do you see instead?\u003c/b\u003e\nI get some &quot;variable X set but not used&quot;-type warnings, that -Werror escalates to errors, halting the build.\r\nAs a temporary measure, I removed -Werror from all *.mk files, which allows me to build the standalone VM successfully.\r\n\r\n\u003cb\u003eWhat version of the product are you using? On what operating system?\u003c/b\u003e\nRecent svn on arch linux using gcc version 4.6.1 20110819 (prerelease) \r\n\r\n\u003cb\u003ePlease provide any additional information below.\u003c/b\u003e\nHere is a full list of the warnings (without -Werror and therefor not turned to errors)\r\n\r\n\r\nthird_party/v8/src/ia32/full-codegen-ia32.cc: In member function ‘virtual void v8::internal::FullCodeGenerator::VisitCompareOperation(v8::internal::CompareOperation*)’:\r\nthird_party/v8/src/ia32/full-codegen-ia32.cc:4085:12: warning: variable ‘strict’ set but not used [-Wunused-but-set-variable]\r\n  CXX(host) out/Debug_ia32/obj.host/v8_base/third_party/v8/src/ia32/lithium-gap-resolver-ia32.o\r\nthird_party/v8/src/ia32/lithium-codegen-ia32.cc: In member function ‘void v8::internal::LCodeGen::DoLoadKeyedFastDoubleElement(v8::internal::LLoadKeyedFastDoubleElement*)’:\r\nthird_party/v8/src/ia32/lithium-codegen-ia32.cc:2235:12: warning: variable ‘elements’ set but not used [-Wunused-but-set-variable]\r\nthird_party/v8/src/ia32/lithium-codegen-ia32.cc: In member function ‘void v8::internal::LCodeGen::DoStoreKeyedFastDoubleElement(v8::internal::LStoreKeyedFastDoubleElement*)’:\r\nthird_party/v8/src/ia32/lithium-codegen-ia32.cc:3100:12: warning: variable ‘elements’ set but not used [-Wunused-but-set-variable]\r\nthird_party/v8/src/ia32/lithium-codegen-ia32.cc:3101:12: warning: variable ‘key’ set but not used [-Wunused-but-set-variable]\r\n\r\n\r\nthird_party/v8/src/ia32/full-codegen-ia32.cc: In member function ‘virtual void v8::internal::FullCodeGenerator::VisitCompareOperation(v8::internal::CompareOperation*)’:\r\nthird_party/v8/src/ia32/full-codegen-ia32.cc:4085:12: warning: variable ‘strict’ set but not used [-Wunused-but-set-variable]\r\n  CXX(target) out/Debug_ia32/obj.target/v8_base/third_party/v8/src/ia32/lithium-gap-resolver-ia32.o\r\nthird_party/v8/src/ia32/lithium-codegen-ia32.cc: In member function ‘void v8::internal::LCodeGen::DoLoadKeyedFastDoubleElement(v8::internal::LLoadKeyedFastDoubleElement*)’:\r\nthird_party/v8/src/ia32/lithium-codegen-ia32.cc:2235:12: warning: variable ‘elements’ set but not used [-Wunused-but-set-variable]\r\nthird_party/v8/src/ia32/lithium-codegen-ia32.cc: In member function ‘void v8::internal::LCodeGen::DoStoreKeyedFastDoubleElement(v8::internal::LStoreKeyedFastDoubleElement*)’:\r\nthird_party/v8/src/ia32/lithium-codegen-ia32.cc:3100:12: warning: variable ‘elements’ set but not used [-Wunused-but-set-variable]\r\nthird_party/v8/src/ia32/lithium-codegen-ia32.cc:3101:12: warning: variable ‘key’ set but not used [-Wunused-but-set-variable]\r\n\r\n","type":"html"},"link":[{"rel":"replies","type":"application/atom+xml","href":"http://code.google.com/feeds/issues/p/dart/issues/9/comments/full"},{"rel":"alternate","type":"text/html","href":"http://code.google.com/p/dart/issues/detail?id=9"},{"rel":"self","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full/9"}],"author":[{"name":{"$t":"waq...@gmail.com"},"uri":{"$t":"/u/110067472520212772478/"}}],"issues$closedDate":{"$t":"2011-10-10T13:20:54.000Z"},"issues$id":{"$t":9},"issues$label":[{"$t":"Type-Defect"},{"$t":"Priority-Medium"}],"issues$mergedInto":{"issues$id":{"$t":43},"issues$project":{"$t":"dart"}},"issues$stars":{"$t":1},"issues$state":{"$t":"closed"},"issues$status":{"$t":"Duplicate"}},{"gd$etag":"W/\"DE4GRX47eCl7ImA9WhdbGEo.\"","id":{"$t":"http://code.google.com/feeds/issues/p/dart/issues/full/10"},"published":{"$t":"2011-10-10T13:21:56.000Z"},"updated":{"$t":"2011-10-17T18:42:04.000Z"},"title":{"$t":"dartc build failure: private DartNode.setParent()"},"content":{"$t":"\u003cb\u003eWhat steps will reproduce the problem?\u003c/b\u003e\n1. build dart compiler\r\n\r\n\u003cb\u003eWhat is the expected output? What do you see instead?\u003c/b\u003e\ndart/compiler/java/com/google/dart/compiler/ast/DartNode.java fails to compile with the following error:\r\n    [javac] /data/down/devel/dart/dart/compiler/java/com/google/dart/compiler/ast/DartNode.java:122: error: setParent(DartNode) has private access in DartNode\r\n    [javac]        child.setParent(this);\r\n    [javac]             ^\r\n\r\n\r\n\u003cb\u003eWhat version of the product are you using? On what operating system?\u003c/b\u003e\ndart svn, javac 1.7.0 on arch linux\r\n\r\n\u003cb\u003ePlease provide any additional information below.\u003c/b\u003e\nMaking setParent() protected instead of private fixes the issue for me, allowing it to be called from protected method becomeParentOf() of the same class.\r\n","type":"html"},"link":[{"rel":"replies","type":"application/atom+xml","href":"http://code.google.com/feeds/issues/p/dart/issues/10/comments/full"},{"rel":"alternate","type":"text/html","href":"http://code.google.com/p/dart/issues/detail?id=10"},{"rel":"self","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full/10"}],"author":[{"name":{"$t":"waq...@gmail.com"},"uri":{"$t":"/u/110067472520212772478/"}}],"issues$closedDate":{"$t":"2011-10-17T18:42:04.000Z"},"issues$id":{"$t":10},"issues$label":[{"$t":"Type-Defect"},{"$t":"Priority-Medium"},{"$t":"Area-Compiler"}],"issues$owner":{"issues$uri":{"$t":"/u/116010686905328984286/"},"issues$username":{"$t":"johnl...@google.com"}},"issues$stars":{"$t":1},"issues$state":{"$t":"closed"},"issues$status":{"$t":"Fixed"}},{"gd$etag":"W/\"D0MCRH47eCl7ImA9WhdbEks.\"","id":{"$t":"http://code.google.com/feeds/issues/p/dart/issues/full/11"},"published":{"$t":"2011-10-10T14:07:17.000Z"},"updated":{"$t":"2011-10-10T16:51:05.000Z"},"title":{"$t":"Error in first online tutorial"},"content":{"$t":"\r\n1. Enter any 3 russian symbols instead of &quot;World&quot;\r\n2. Run.\r\n3. Program prints &quot;Hello, хуй!&quot;\r\n\r\nхуй - russian dirty word. Do you have russian programmers? ;)\r\n\r\nI'm using google chrome 14 to try this tutorial.\r\nIn some cases (when number of russian symbols is more then 3) it prints squares instead of letters (it's encoding problems i think ;)\r\n\r\n","type":"html"},"link":[{"rel":"replies","type":"application/atom+xml","href":"http://code.google.com/feeds/issues/p/dart/issues/11/comments/full"},{"rel":"alternate","type":"text/html","href":"http://code.google.com/p/dart/issues/detail?id=11"},{"rel":"self","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full/11"}],"author":[{"name":{"$t":"podg...@gmail.com"},"uri":{"$t":"/u/105898658743680019064/"}}],"issues$closedDate":{"$t":"2011-10-10T16:51:05.000Z"},"issues$id":{"$t":11},"issues$label":[{"$t":"Type-Defect"},{"$t":"Priority-Medium"}],"issues$owner":{"issues$uri":{"$t":"/u/100337825224881731112/"},"issues$username":{"$t":"fmal...@google.com"}},"issues$stars":{"$t":2},"issues$state":{"$t":"closed"},"issues$status":{"$t":"Fixed"}},{"gd$etag":"W/\"A0UBSH47eCl7ImA9WhdbE04.\"","id":{"$t":"http://code.google.com/feeds/issues/p/dart/issues/full/12"},"published":{"$t":"2011-10-10T14:28:03.000Z"},"updated":{"$t":"2011-10-11T13:20:59.000Z"},"title":{"$t":"compiler should be be independant of browser code"},"content":{"$t":"Request: Make the Dart-&gt;JS compiler as a seperate file from the browser checking code so that the project can be included in other projects such as Node.JS\r\n\r\n","type":"html"},"link":[{"rel":"replies","type":"application/atom+xml","href":"http://code.google.com/feeds/issues/p/dart/issues/12/comments/full"},{"rel":"alternate","type":"text/html","href":"http://code.google.com/p/dart/issues/detail?id=12"},{"rel":"self","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full/12"}],"author":[{"name":{"$t":"xdr...@gmail.com"},"uri":{"$t":"/u/117476521218063886204/"}}],"issues$closedDate":{"$t":"2011-10-11T13:20:59.000Z"},"issues$id":{"$t":12},"issues$label":[{"$t":"Type-Defect"},{"$t":"Priority-Medium"}],"issues$stars":{"$t":3},"issues$state":{"$t":"closed"},"issues$status":{"$t":"Invalid"}},{"gd$etag":"W/\"CkEHQ347eCl7ImA9WhJSEkk.\"","id":{"$t":"http://code.google.com/feeds/issues/p/dart/issues/full/13"},"published":{"$t":"2011-10-10T14:33:33.000Z"},"updated":{"$t":"2012-07-02T14:50:32.000Z"},"title":{"$t":"Add C#-style extension methods"},"content":{"$t":"Unless I'm reading the spec and examples wrong, it looks as if Dart uses the horrific Java approach of providing utility methods that operate on a interface, by putting them as static methods within some class with a name like 'Arrays' or 'Collections'. This is nonsense, especially when Linq and extension methods in C# have demonstrated a far superior approach, and Dart should provide an equivalent mechanism.\r\n\r\nAn obvious, easy way to add this would be that top level functions can optionally be called on an object using the dot operator, in which case the calling instance is passed as the first function parameter.\r\n\r\nE.g. to write a generic first method that operates over an iterator for a supplied predicate:\r\n\r\nT first&lt;T&gt;(Iterator&lt;T&gt; iterator, bool predicate(T obj)) {\r\n    while (iterator.hasNext()) {\r\n        if (predicate(iterator.next()) {\r\n            return true;\r\n        }\r\n    }\r\n    return false;\r\n}\r\n\r\nThis could be called on an instance of an iterator as follows:\r\n\r\nvar jon = peopleIterator.first((p) =&gt; p.name == 'Jon');\r\n\r\nUsing extension methods that also return iterators, they can then chained together to form fluent expressions:\r\n\r\nvar fiveOldestJons = peopleInterator.where((p) =&gt; p.name == 'Jon').orderBy((p) =&gt; p.age).take(5);\r\n\r\nIt's worrying looking through the language design that you don't seem to looked much beyond JavaScript and Java for your inspiration in Dart. I can't speak for users of other languages, but I strongly doubt C# developers will be particularly impressed by a lot of the Java style anachronisms, and I'd urge you to cast your net a little more widely in general.","type":"html"},"link":[{"rel":"replies","type":"application/atom+xml","href":"http://code.google.com/feeds/issues/p/dart/issues/13/comments/full"},{"rel":"alternate","type":"text/html","href":"http://code.google.com/p/dart/issues/detail?id=13"},{"rel":"self","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full/13"}],"author":[{"name":{"$t":"jon.rimmer"},"uri":{"$t":"/u/jon.rimmer/"}}],"issues$closedDate":{"$t":"2011-10-12T13:44:38.000Z"},"issues$id":{"$t":13},"issues$label":[{"$t":"Type-Enhancement"},{"$t":"Priority-Medium"},{"$t":"Area-Language"}],"issues$stars":{"$t":25},"issues$state":{"$t":"closed"},"issues$status":{"$t":"WontFix"}},{"gd$etag":"W/\"Ck4BRn47eCl7ImA9WhRaF04.\"","id":{"$t":"http://code.google.com/feeds/issues/p/dart/issues/full/14"},"published":{"$t":"2011-10-10T15:34:16.000Z"},"updated":{"$t":"2012-02-20T09:42:37.000Z"},"title":{"$t":"Add Tau constant to core Math class"},"content":{"$t":"With a new language, we are taking the opportunity to introduce better concepts, right? So please add Tau, the ratio of a circle's circumference to its radius (i.e. 2pi), to the Math class.\r\n\r\nLeave Math.PI as is, but please add Math.TAU\r\n\r\nThis is a safe addition with no side effects and minimal impact to the language and runtime.\r\n\r\nTau manifesto: http://tauday.com/\r\n","type":"html"},"link":[{"rel":"replies","type":"application/atom+xml","href":"http://code.google.com/feeds/issues/p/dart/issues/14/comments/full"},{"rel":"alternate","type":"text/html","href":"http://code.google.com/p/dart/issues/detail?id=14"},{"rel":"self","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full/14"}],"author":[{"name":{"$t":"peter.ge...@gmail.com"},"uri":{"$t":"/u/116327704440122793403/"}}],"issues$closedDate":{"$t":"2012-02-16T00:26:22.000Z"},"issues$id":{"$t":14},"issues$label":[{"$t":"Type-Enhancement"},{"$t":"Priority-Medium"},{"$t":"Area-Library"}],"issues$owner":{"issues$uri":{"$t":"/u/jjb@google.com/"},"issues$username":{"$t":"jjb@google.com"}},"issues$stars":{"$t":17},"issues$state":{"$t":"closed"},"issues$status":{"$t":"WontFix"}},{"gd$etag":"W/\"DE8BQH47eCl7ImA9WhdaEkw.\"","id":{"$t":"http://code.google.com/feeds/issues/p/dart/issues/full/15"},"published":{"$t":"2011-10-10T15:36:24.000Z"},"updated":{"$t":"2011-10-21T17:07:31.000Z"},"title":{"$t":"jQuery integration"},"content":{"$t":"I may be mis-understanding dart, but I would like to put in a request that Google's engineers/someone smarter than me add jQuery as a possible library.\r\n\r\nFor instance, how would I accomplish the following using dart?\r\n\r\n&lt;pre&gt;\r\n$(&quot;p&quot;).click({function(){ alert(&quot;You clicked a paragraph tag!&quot;); });\r\n&lt;/pre&gt;\r\n\r\n","type":"html"},"link":[{"rel":"replies","type":"application/atom+xml","href":"http://code.google.com/feeds/issues/p/dart/issues/15/comments/full"},{"rel":"alternate","type":"text/html","href":"http://code.google.com/p/dart/issues/detail?id=15"},{"rel":"self","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full/15"}],"author":[{"name":{"$t":"bri...@dearing-group.com"},"uri":{"$t":"/u/108006530617416183710/"}}],"issues$closedDate":{"$t":"2011-10-21T16:26:31.000Z"},"issues$id":{"$t":15},"issues$label":[{"$t":"Type-Enhancement"},{"$t":"Priority-Medium"},{"$t":"Area-UI"}],"issues$stars":{"$t":10},"issues$state":{"$t":"closed"},"issues$status":{"$t":"WontFix"}},{"gd$etag":"W/\"CUQNQ347eCl7ImA9WhdbE0g.\"","id":{"$t":"http://code.google.com/feeds/issues/p/dart/issues/full/16"},"published":{"$t":"2011-10-10T16:04:28.000Z"},"updated":{"$t":"2011-10-11T17:16:32.000Z"},"title":{"$t":"Generics disappear on try.dartlang.org"},"content":{"$t":"Go to try.dartlang.org, then insert and execute this code:\r\nclass PointlessValueWrapper {\r\n  PointlessValueWrapper(Type pointlessArgument);\r\n}\r\nmain() {\r\n  new PointlessValueWrapper(5);\r\n  new PointlessValueWrapper(&quot;Hello!&quot;);\r\n}\r\n\r\nAs expected, line 6 raises a warning.\r\n\r\nNow, open the link on the top right in a new tab. You'll see the same code, except the type parameters are missing. Because of this, line 2 now produces an error.\r\n\r\nI expect a tokeniser somewhere is misbehaving.\r\n\r\nUsing Firefox/Nightly (which is at version 10, at the moment).","type":"html"},"link":[{"rel":"replies","type":"application/atom+xml","href":"http://code.google.com/feeds/issues/p/dart/issues/16/comments/full"},{"rel":"alternate","type":"text/html","href":"http://code.google.com/p/dart/issues/detail?id=16"},{"rel":"self","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full/16"}],"author":[{"name":{"$t":"pimmhoge...@gmail.com"},"uri":{"$t":"/u/117820825527967972339/"}}],"issues$closedDate":{"$t":"2011-10-11T17:16:32.000Z"},"issues$id":{"$t":16},"issues$label":[{"$t":"Type-Defect"},{"$t":"Priority-Medium"},{"$t":"Area-Dartboard"}],"issues$owner":{"issues$uri":{"$t":"/u/103267283189406017873/"},"issues$username":{"$t":"knor...@google.com"}},"issues$stars":{"$t":0},"issues$state":{"$t":"closed"},"issues$status":{"$t":"Verified"}},{"gd$etag":"W/\"D0UDRH47eCl7ImA9WhdbEks.\"","id":{"$t":"http://code.google.com/feeds/issues/p/dart/issues/full/17"},"published":{"$t":"2011-10-10T16:11:37.000Z"},"updated":{"$t":"2011-10-10T16:47:55.000Z"},"title":{"$t":"Can't build editor"},"content":{"$t":"In editor/build/README.txt:\r\n\r\n---\r\nTo begin, make sure the Dart plugin and feature sources are checked out from\r\nSVN. Edit rcpinit.sh to define the location of the TRUNK directory that was\r\nchecked out. Also checkout the usage profile plugin and feature from perforce.\r\nDefine that directory in rcpinit.sh as GDT_PROF. You only the the usage\r\nprofiler, not all of GPE.\r\n---\r\n\r\nBut google plugin for eclipse is not open-sourced yet:\r\nhttp://code.google.com/eclipse/docs/faq.html#source\r\n\r\nWhere can I find smth like /src/prof-git5/google3/third_party/java/google_plugin_eclipse/opensource/trunk\r\nfor building editor?","type":"html"},"link":[{"rel":"replies","type":"application/atom+xml","href":"http://code.google.com/feeds/issues/p/dart/issues/17/comments/full"},{"rel":"alternate","type":"text/html","href":"http://code.google.com/p/dart/issues/detail?id=17"},{"rel":"self","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full/17"}],"author":[{"name":{"$t":"bats...@gmail.com"},"uri":{"$t":"/u/108382165757819799147/"}}],"issues$closedDate":{"$t":"2011-10-10T16:23:46.000Z"},"issues$id":{"$t":17},"issues$label":[{"$t":"Type-Defect"},{"$t":"Priority-Medium"}],"issues$stars":{"$t":1},"issues$state":{"$t":"closed"},"issues$status":{"$t":"Done"}},{"gd$etag":"W/\"CEYMRn47eCl7ImA9WhJbFU0.\"","id":{"$t":"http://code.google.com/feeds/issues/p/dart/issues/full/18"},"published":{"$t":"2011-10-10T16:31:10.000Z"},"updated":{"$t":"2012-09-24T15:56:27.000Z"},"title":{"$t":"Building dart on Mac OS X Lion with xcode 4"},"content":{"$t":"\u003cb\u003eWhat steps will reproduce the problem?\u003c/b\u003e\n1. checkout source code\r\n2. run tools/build.py\r\n\r\nResult:\r\n=== BUILD NATIVE TARGET v8_base OF PROJECT v8 WITH CONFIGURATION Debug_x64 ===\r\n** BUILD FAILED **\r\n\r\nThe problem is in macosx sdk version. Google Dart needs 10.5 for building, but there are no macosx10.5 sdk in XCode 4 in Lion.\r\n\r\nWorkaround: specify sdk manually in build.py:\r\nIndex: tools/build.py\r\n===================================================================\r\n--- tools/build.py  (revision 296)\r\n+++ tools/build.py  (working copy)\r\n@@ -106,6 +106,8 @@\r\n         if os.path.exists('dart-%s.gyp' % CurrentDirectoryBaseName()):\r\n           project_file = 'dart-%s.xcodeproj' % CurrentDirectoryBaseName()\r\n         args = ['xcodebuild',\r\n+                '-sdk',\r\n+                'macosx10.6',\r\n                 '-project',\r\n                 project_file,\r\n                 '-target',\r\n\r\nFull instruction for workaround on Lion:\r\nhttp://batsuev.com/2011/10/building-google-dart-on-os-x-lion-with-xcode-4/\r\n","type":"html"},"link":[{"rel":"replies","type":"application/atom+xml","href":"http://code.google.com/feeds/issues/p/dart/issues/18/comments/full"},{"rel":"alternate","type":"text/html","href":"http://code.google.com/p/dart/issues/detail?id=18"},{"rel":"self","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full/18"}],"author":[{"name":{"$t":"bats...@gmail.com"},"uri":{"$t":"/u/108382165757819799147/"}}],"issues$cc":[{"issues$uri":{"$t":"/u/efortuna@google.com/"},"issues$username":{"$t":"efortuna@google.com"}},{"issues$uri":{"$t":"/u/dgrove@google.com/"},"issues$username":{"$t":"dgrove@google.com"}}],"issues$id":{"$t":18},"issues$label":[{"$t":"Type-Defect"},{"$t":"Priority-Medium"},{"$t":"Area-Build"},{"$t":"Milestone-M2"}],"issues$owner":{"issues$uri":{"$t":"/u/iposva@google.com/"},"issues$username":{"$t":"iposva@google.com"}},"issues$stars":{"$t":22},"issues$state":{"$t":"open"},"issues$status":{"$t":"Accepted"}},{"gd$etag":"W/\"D0EBSH47eCl7ImA9WhdbEko.\"","id":{"$t":"http://code.google.com/feeds/issues/p/dart/issues/full/19"},"published":{"$t":"2011-10-10T17:36:20.000Z"},"updated":{"$t":"2011-10-10T19:40:59.000Z"},"title":{"$t":"Integration with Eclipse"},"content":{"$t":"There should be a good integration towards common IDE's like Eclipse. ","type":"html"},"link":[{"rel":"replies","type":"application/atom+xml","href":"http://code.google.com/feeds/issues/p/dart/issues/19/comments/full"},{"rel":"alternate","type":"text/html","href":"http://code.google.com/p/dart/issues/detail?id=19"},{"rel":"self","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full/19"}],"author":[{"name":{"$t":"ad...@trollweb.no"},"uri":{"$t":"/u/108751899022404107859/"}}],"issues$closedDate":{"$t":"2011-10-10T19:40:59.000Z"},"issues$id":{"$t":19},"issues$label":[{"$t":"Type-Defect"},{"$t":"Priority-Medium"}],"issues$stars":{"$t":0},"issues$state":{"$t":"closed"},"issues$status":{"$t":"Invalid"}},{"gd$etag":"W/\"DE4BRX47eCl7ImA9WhdbE0k.\"","id":{"$t":"http://code.google.com/feeds/issues/p/dart/issues/full/20"},"published":{"$t":"2011-10-10T17:48:37.000Z"},"updated":{"$t":"2011-10-11T15:29:14.000Z"},"title":{"$t":"typo in initial example on try-dart-lang.appspot.com"},"content":{"$t":"\u003cb\u003eWhat steps will reproduce the problem?\u003c/b\u003e\n1. Visit http://try-dart-lang.appspot.com/\r\n\r\n\u003cb\u003eWhat is the expected output? What do you see instead?\u003c/b\u003e\n\r\nI expected to see coherent wording. Instead, I see &quot;When you run the code … it it submitted to AppEngine&quot;. I believe the intended wording was &quot;When you run the code, it is submitted to AppEngine&quot;.\r\n\r\n\u003cb\u003eWhat version of the product are you using? On what operating system?\u003c/b\u003e\n\r\nThe live version on Chrome and Fedora.\r\n\r\n\u003cb\u003ePlease provide any additional information below.\u003c/b\u003e\n\r\n","type":"html"},"link":[{"rel":"replies","type":"application/atom+xml","href":"http://code.google.com/feeds/issues/p/dart/issues/20/comments/full"},{"rel":"alternate","type":"text/html","href":"http://code.google.com/p/dart/issues/detail?id=20"},{"rel":"self","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full/20"}],"author":[{"name":{"$t":"mich...@ficarra.me"},"uri":{"$t":"/u/111990041337538184628/"}}],"issues$closedDate":{"$t":"2011-10-11T14:01:40.000Z"},"issues$id":{"$t":20},"issues$label":[{"$t":"Type-Defect"},{"$t":"Priority-Medium"},{"$t":"Component-Docs"}],"issues$owner":{"issues$uri":{"$t":"/u/pdr@google.com/"},"issues$username":{"$t":"pdr@google.com"}},"issues$stars":{"$t":1},"issues$state":{"$t":"closed"},"issues$status":{"$t":"Fixed"}},{"gd$etag":"W/\"Ck8AQH47eCl7ImA9WhdbE0k.\"","id":{"$t":"http://code.google.com/feeds/issues/p/dart/issues/full/21"},"published":{"$t":"2011-10-10T17:55:20.000Z"},"updated":{"$t":"2011-10-11T13:47:21.000Z"},"title":{"$t":"Include Open Sans Bold web font in dartlang.org pages"},"content":{"$t":"The pages on dartlang.org use this tag to load Open Sans:\r\n\r\n&lt;link href='http://fonts.googleapis.com/css?family=Open+Sans' rel='stylesheet' type='text/css'&gt;\r\n\r\nThis doesn't load the boldface file, while some parts like .intro &gt; dl &gt; dt are set in boldface. Currently this means that the regular font is made bold programmatically at these places, which looks very bad.\r\n\r\nInstead, please use this tag:\r\n\r\n&lt;link href='http://fonts.googleapis.com/css?family=Open+Sans:400,700' rel='stylesheet' type='text/css'&gt;","type":"html"},"link":[{"rel":"replies","type":"application/atom+xml","href":"http://code.google.com/feeds/issues/p/dart/issues/21/comments/full"},{"rel":"alternate","type":"text/html","href":"http://code.google.com/p/dart/issues/detail?id=21"},{"rel":"self","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full/21"}],"author":[{"name":{"$t":"sander.d...@gmail.com"},"uri":{"$t":"/u/117653750014788020856/"}}],"issues$closedDate":{"$t":"2011-10-11T13:47:21.000Z"},"issues$id":{"$t":21},"issues$label":[{"$t":"Type-Defect"},{"$t":"Priority-Medium"},{"$t":"Component-Docs"}],"issues$owner":{"issues$uri":{"$t":"/u/drfibonacci@google.com/"},"issues$username":{"$t":"drfibonacci@google.com"}},"issues$stars":{"$t":1},"issues$state":{"$t":"closed"},"issues$status":{"$t":"Fixed"}},{"gd$etag":"W/\"CE4DR347eCl7ImA9WhJaEko.\"","id":{"$t":"http://code.google.com/feeds/issues/p/dart/issues/full/22"},"published":{"$t":"2011-10-10T18:47:48.000Z"},"updated":{"$t":"2012-10-03T14:02:56.000Z"},"title":{"$t":"Support non-nullable types."},"content":{"$t":"Short version: Null pointers are a really good way to mess up a program at runtime, and I'd like the Dart team to reevaluate whether they're absolutely required.\r\n\r\nSlightly longer version: I would say the #1 cause of issues in my programs (excluding logical errors/requirements errors) are NPEs. Having a language support NPE removal, be it via some clever compiler warning or simply removing null altogether, would be wonderful. I'm personally partial to Scala's method of null removal, but I'm sure PL gurus like yourselves have seen many others.\r\n\r\nDart has a stated goal of avoiding the creation of programs that &quot;are difficult to debug or maintain.&quot; NPEs are a huge pain point in this regard. I'd be really happy if the Dart team reevaluated whether they are absolutely required to achieve the other aims.","type":"html"},"link":[{"rel":"replies","type":"application/atom+xml","href":"http://code.google.com/feeds/issues/p/dart/issues/22/comments/full"},{"rel":"alternate","type":"text/html","href":"http://code.google.com/p/dart/issues/detail?id=22"},{"rel":"self","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full/22"}],"author":[{"name":{"$t":"cfle...@gmail.com"},"uri":{"$t":"/u/117457048271408990845/"}}],"issues$id":{"$t":22},"issues$label":[{"$t":"Type-Enhancement"},{"$t":"Priority-Medium"},{"$t":"Area-Language"},{"$t":"Milestone-Later"}],"issues$owner":{"issues$uri":{"$t":"/u/102708310591662789853/"},"issues$username":{"$t":"gbra...@google.com"}},"issues$stars":{"$t":110},"issues$state":{"$t":"open"},"issues$status":{"$t":"Triaged"}},{"gd$etag":"W/\"A0YNSH47eCl7ImA9WhdbE04.\"","id":{"$t":"http://code.google.com/feeds/issues/p/dart/issues/full/23"},"published":{"$t":"2011-10-10T19:00:32.000Z"},"updated":{"$t":"2011-10-11T13:19:59.000Z"},"title":{"$t":"The example Fibonacci is not responsive most of the times"},"content":{"$t":"\u003cb\u003eWhat steps will reproduce the problem?\u003c/b\u003e\n1. At dartland.org, choose the example Fibonacci.\r\n2. Instead of 20, as a parameter for the function Fib, use 50.\r\n\r\n\u003cb\u003eWhat is the expected output? What do you see instead?\u003c/b\u003e\nI was expecting a numeric output generated by the function. Instead, the page freezes or crashes.\r\n\r\n\r\n\u003cb\u003eWhat version of the product are you using? On what operating system?\u003c/b\u003e\nn/a. Google Chrome on Windows 7\r\n\r\n\u003cb\u003ePlease provide any additional information below.\u003c/b\u003e\n\r\n","type":"html"},"link":[{"rel":"replies","type":"application/atom+xml","href":"http://code.google.com/feeds/issues/p/dart/issues/23/comments/full"},{"rel":"alternate","type":"text/html","href":"http://code.google.com/p/dart/issues/detail?id=23"},{"rel":"self","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full/23"}],"author":[{"name":{"$t":"guilherm...@gmail.com"},"uri":{"$t":"/u/117803371227799387793/"}}],"issues$closedDate":{"$t":"2011-10-11T13:19:59.000Z"},"issues$id":{"$t":23},"issues$label":[{"$t":"Type-Defect"},{"$t":"Priority-Medium"}],"issues$stars":{"$t":0},"issues$state":{"$t":"closed"},"issues$status":{"$t":"Invalid"}},{"gd$etag":"W/\"CU8BSH47eCl7ImA9WhdbEko.\"","id":{"$t":"http://code.google.com/feeds/issues/p/dart/issues/full/24"},"published":{"$t":"2011-10-10T19:01:19.000Z"},"updated":{"$t":"2011-10-10T19:10:59.000Z"},"title":{"$t":"Allowing null pointers is undesirable"},"content":{"$t":"Short version: Null pointers are a really good way to mess up a program at runtime, and I'd like the Dart team to reevaluate whether they're absolutely required.\r\n\r\nSlightly longer version: I would say the #1 cause of issues in my programs (excluding logical errors/requirements errors) are NPEs. Having a language support NPE removal, be it via some clever compiler warning or simply removing null altogether, would be wonderful. I'm personally partial to Scala's method of null removal, but I'm sure PL gurus like yourselves have seen many others.\r\n\r\nDart has a stated goal of avoiding the creation of programs that &quot;are difficult to debug or maintain.&quot; NPEs are a huge pain point in this regard. I'd be really happy if the Dart team reevaluated whether they are absolutely required to achieve the other aims.","type":"html"},"link":[{"rel":"replies","type":"application/atom+xml","href":"http://code.google.com/feeds/issues/p/dart/issues/24/comments/full"},{"rel":"alternate","type":"text/html","href":"http://code.google.com/p/dart/issues/detail?id=24"},{"rel":"self","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full/24"}],"author":[{"name":{"$t":"cfle...@gmail.com"},"uri":{"$t":"/u/117457048271408990845/"}}],"issues$closedDate":{"$t":"2011-10-10T19:10:59.000Z"},"issues$id":{"$t":24},"issues$label":[{"$t":"Type-Defect"},{"$t":"Priority-Medium"}],"issues$mergedInto":{"issues$id":{"$t":22},"issues$project":{"$t":"dart"}},"issues$stars":{"$t":2},"issues$state":{"$t":"closed"},"issues$status":{"$t":"Duplicate"}},{"gd$etag":"W/\"C0EBRX47eCl7ImA9WhdbE0k.\"","id":{"$t":"http://code.google.com/feeds/issues/p/dart/issues/full/25"},"published":{"$t":"2011-10-10T19:50:14.000Z"},"updated":{"$t":"2011-10-11T14:00:54.000Z"},"title":{"$t":"Another typo in http://try-dart-lang.appspot.com/ code comments"},"content":{"$t":"\u003cb\u003eWhat steps will reproduce the problem?\u003c/b\u003e\n1. Visit http://try-dart-lang.appspot.com/\r\n\r\n\u003cb\u003eWhat is the expected output? What do you see instead?\u003c/b\u003e\n\r\nIn addition to issue20, I spotted another typo, marked with (sic) below.\r\n\r\nThe first or second &quot;of&quot; can be deleted, whichever you prefer :-)\r\n\r\n&quot;// Here you can try out the Dart Language from the comfort of of (sic) your own&quot;\r\n\r\n\u003cb\u003eWhat version of the product are you using? On what operating system?\u003c/b\u003e\n\r\nAbove URL at the time of this issue submission.\r\n\r\n\u003cb\u003ePlease provide any additional information below.\u003c/b\u003e\n","type":"html"},"link":[{"rel":"replies","type":"application/atom+xml","href":"http://code.google.com/feeds/issues/p/dart/issues/25/comments/full"},{"rel":"alternate","type":"text/html","href":"http://code.google.com/p/dart/issues/detail?id=25"},{"rel":"self","type":"application/atom+xml","href":"https://code.google.com/feeds/issues/p/dart/issues/full/25"}],"author":[{"name":{"$t":"adrian.a...@gmail.com"},"uri":{"$t":"/u/114973624116584041537/"}}],"issues$closedDate":{"$t":"2011-10-11T14:00:54.000Z"},"issues$id":{"$t":25},"issues$label":[{"$t":"Type-Defect"},{"$t":"Priority-Medium"},{"$t":"Component-Docs"}],"issues$owner":{"issues$uri":{"$t":"/u/pdr@google.com/"},"issues$username":{"$t":"pdr@google.com"}},"issues$stars":{"$t":1},"issues$state":{"$t":"closed"},"issues$status":{"$t":"Fixed"}}]}}
diff --git a/tests/lib_2/html/xhr_cross_origin_test.dart b/tests/lib_2/html/xhr_cross_origin_test.dart
deleted file mode 100644
index 5d60cc2797d..00000000000
--- a/tests/lib_2/html/xhr_cross_origin_test.dart
+++ /dev/null
@@ -1,107 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library XHRCrossOriginTest;
-
-import 'package:async_helper/async_helper.dart';
-import 'package:async_helper/async_minitest.dart';
-import 'dart:html';
-import "dart:convert";
-
-/**
- * Examine the value of "crossOriginPort" as passed in from the url from
- * [window.location] to determine what the cross-origin port is for
- * this test.
- */
-// TODO(efortuna): If we need to use this function frequently, make a
-// url_analyzer library that is part of test.dart that these tests can import.
-int get crossOriginPort {
-  var searchUrl = window.location.search;
-  var crossOriginStr = 'crossOriginPort=';
-  var index = searchUrl.indexOf(crossOriginStr);
-  var nextArg = searchUrl.indexOf('&', index);
-  return int.parse(searchUrl.substring(index + crossOriginStr.length,
-      nextArg == -1 ? searchUrl.length : nextArg));
-}
-
-var port = crossOriginPort;
-var host = '${window.location.protocol}//${window.location.hostname}:$port';
-
-Future testGetCrossDomain() async {
-  var gotError = false;
-  var url = '$host/root_dart/tests/lib_2/html/xhr_cross_origin_data.txt';
-  try {
-    var xhr = await HttpRequest.request(url);
-    var data = json.decode(xhr.response);
-    expect(data.containsKey('feed'), isTrue);
-    expect(data['feed'].containsKey('entry'), isTrue);
-    expect(data, isMap);
-  } catch (e) {
-    // Consume errors when not supporting cross origin.
-    gotError = true;
-  }
-  // Expect that we got an error when cross origin is not supported.
-  expect(gotError, !HttpRequest.supportsCrossOrigin);
-}
-
-Future testRequestCrossOrigin() async {
-  var url = '$host/root_dart/tests/lib_2/html/xhr_cross_origin_data.txt';
-  var response = await HttpRequest.requestCrossOrigin(url);
-  expect(response.contains('feed'), isTrue);
-}
-
-Future testRequestCrossOriginErrors() async {
-  try {
-    var response = await HttpRequest.requestCrossOrigin('does_not_exist');
-    fail('404s should fail request.');
-  } catch (_) {
-    // Expected failure.
-  }
-}
-
-void testCrossDomain() {
-  var url = '$host/root_dart/tests/lib_2/html/xhr_cross_origin_data.txt';
-  var xhr = new HttpRequest();
-  xhr.open('GET', url, async: true);
-  var validate = expectAsync((data) {
-    expect(data.containsKey('feed'), isTrue);
-    expect(data['feed'].containsKey('entry'), isTrue);
-    expect(data, isMap);
-  });
-  xhr.onReadyStateChange.listen((e) {
-    if (xhr.readyState == HttpRequest.DONE) {
-      validate(json.decode(xhr.response));
-    }
-  });
-  xhr.send();
-}
-
-Future testGetWithCredentialsCrossDomain() async {
-  var url = '$host/root_dart/tests/lib_2/html/xhr_cross_origin_data.txt';
-  var xhr = await HttpRequest.request(url, withCredentials: true);
-  var data = json.decode(xhr.response);
-  expect(data.containsKey('feed'), isTrue);
-  expect(data['feed'].containsKey('entry'), isTrue);
-  expect(data, isMap);
-}
-
-main() {
-  test('supported', () {
-    expect(HttpRequest.supportsCrossOrigin, isTrue);
-  });
-
-  asyncTest(() async {
-    await testGetCrossDomain();
-    await testRequestCrossOrigin();
-    await testRequestCrossOriginErrors();
-    // Skip the rest if not supported.
-    if (!HttpRequest.supportsCrossOrigin) {
-      return;
-    }
-    testCrossDomain();
-    await testGetWithCredentialsCrossDomain();
-  });
-}
diff --git a/tests/lib_2/html/xhr_test.dart b/tests/lib_2/html/xhr_test.dart
deleted file mode 100644
index 84fc4a68033..00000000000
--- a/tests/lib_2/html/xhr_test.dart
+++ /dev/null
@@ -1,267 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library XHRTest;
-
-import 'dart:async';
-import 'dart:convert';
-import 'dart:html';
-import 'dart:typed_data';
-
-import 'package:async_helper/async_minitest.dart';
-import 'package:async_helper/async_helper.dart';
-
-// Cache blocker is a workaround for:
-// https://code.google.com/p/dart/issues/detail?id=11834
-var cacheBlocker = new DateTime.now().millisecondsSinceEpoch;
-var url = '/root_dart/tests/lib_2/html/xhr_cross_origin_data.txt?'
-    'cacheBlock=$cacheBlocker';
-
-void validate200Response(xhr) {
-  expect(xhr.status, 200);
-  var data = json.decode(xhr.responseText);
-  expect(data.containsKey('feed'), isTrue);
-  expect(data['feed'].containsKey('entry'), isTrue);
-  expect(data, isMap);
-}
-
-void validate404(xhr) {
-  expect(xhr.status, 404);
-  // We cannot say much about xhr.responseText, most HTTP servers will
-  // include an HTML page explaining the error to a human.
-  String responseText = xhr.responseText;
-  expect(responseText, isNotNull);
-}
-
-Future testXhrNoFile() async {
-  HttpRequest xhr = new HttpRequest();
-  xhr.open("GET", "NonExistingFile", async: true);
-  var completer = new Completer<void>();
-  xhr.onReadyStateChange.listen((event) {
-    if (!completer.isCompleted && xhr.readyState == HttpRequest.DONE) {
-      completer.complete();
-      validate404(xhr);
-    }
-  });
-  xhr.send();
-  await completer;
-}
-
-Future testXhrFile() async {
-  var loadEndCalled = false;
-
-  var xhr = new HttpRequest();
-  xhr.open('GET', url, async: true);
-  var completer = new Completer<void>();
-  xhr.onReadyStateChange.listen((e) {
-    if (!completer.isCompleted && xhr.readyState == HttpRequest.DONE) {
-      completer.complete();
-      validate200Response(xhr);
-
-      Timer.run(expectAsync(() {
-        expect(loadEndCalled, HttpRequest.supportsLoadEndEvent);
-      }));
-    }
-  });
-
-  xhr.onLoadEnd.listen((ProgressEvent e) {
-    loadEndCalled = true;
-  });
-  xhr.send();
-  await completer;
-}
-
-Future testRequestNoFile() async {
-  try {
-    await HttpRequest.request('NonExistingFile');
-    fail('Request should not have succeeded.');
-  } catch (error) {
-    HttpRequest xhr = error.target;
-    expect(xhr.readyState, HttpRequest.DONE);
-    validate404(xhr);
-  }
-}
-
-Future testRequestFile() async {
-  var xhr = await HttpRequest.request(url);
-  expect(xhr.readyState, HttpRequest.DONE);
-  validate200Response(xhr);
-}
-
-Future testRequestOnProgress() async {
-  var progressCalled = false;
-  var xhr = await HttpRequest.request(url, onProgress: (_) {
-    progressCalled = true;
-  });
-  expect(xhr.readyState, HttpRequest.DONE);
-  expect(progressCalled, HttpRequest.supportsProgressEvent);
-  validate200Response(xhr);
-}
-
-Future testRequestWithCredentialsNoFile() async {
-  try {
-    await HttpRequest.request('NonExistingFile', withCredentials: true);
-    fail('Request should not have succeeded.');
-  } catch (error) {
-    HttpRequest xhr = error.target;
-    expect(xhr.readyState, HttpRequest.DONE);
-    validate404(xhr);
-  }
-}
-
-Future testRequestWithCredentialsFile() async {
-  try {
-    HttpRequest xhr = await HttpRequest.request(url, withCredentials: true);
-    expect(xhr.readyState, HttpRequest.DONE);
-    validate200Response(xhr);
-  } catch (_) {
-    fail('Request should succeed.');
-  }
-}
-
-Future testGetStringFile() => HttpRequest.getString(url);
-
-Future testGetStringNoFile() async {
-  try {
-    await HttpRequest.getString('NonExistingFile');
-    fail('Succeeded for non-existing file.');
-  } catch (error) {
-    HttpRequest xhr = error.target;
-    expect(xhr.readyState, HttpRequest.DONE);
-    validate404(xhr);
-  }
-}
-
-Future testRequestResponseTypeArrayBuffer() async {
-  if (Platform.supportsTypedData) {
-    var xhr = await HttpRequest.request(url,
-        responseType: 'arraybuffer',
-        requestHeaders: {'Content-Type': 'text/xml'});
-    expect(xhr.status, 200);
-    var byteBuffer = xhr.response;
-    expect(byteBuffer, isInstanceOf<ByteBuffer>());
-    expect(byteBuffer, isNotNull);
-  }
-}
-
-Future testOverrideMimeType() async {
-  bool gotError = false;
-  try {
-    await HttpRequest.request(url, mimeType: 'application/binary');
-  } catch (_) {
-    gotError = true;
-  }
-  expect(gotError, !HttpRequest.supportsOverrideMimeType);
-}
-
-Future testXhrUpload() async {
-  if (Platform.supportsTypedData) {
-    var xhr = new HttpRequest();
-    var progressCalled = false;
-    xhr.upload.onProgress.listen((e) {
-      progressCalled = true;
-    });
-
-    xhr.open(
-        'POST', '${window.location.protocol}//${window.location.host}/echo');
-
-    // 10MB of payload data w/ a bit of data to make sure it
-    // doesn't get compressed to nil.
-    var data = new Uint8List(1 * 1024 * 1024);
-    for (var i = 0; i < data.length; ++i) {
-      data[i] = i & 0xFF;
-    }
-    xhr.send(new Uint8List.view(data.buffer));
-
-    await xhr.onLoad.first;
-    expect(progressCalled, isTrue, reason: 'onProgress should be fired');
-  }
-}
-
-Future testXhrPostFormData() async {
-  var data = {'name': 'John', 'time': '2 pm'};
-
-  var parts = [];
-  for (var key in data.keys) {
-    parts.add('${Uri.encodeQueryComponent(key)}='
-        '${Uri.encodeQueryComponent(data[key])}');
-  }
-  var encodedData = parts.join('&');
-
-  var xhr = await HttpRequest.postFormData(
-      '${window.location.protocol}//${window.location.host}/echo', data);
-  expect(xhr.responseText, encodedData);
-}
-
-Future testRequestResponseTypeBlob() async {
-  if (Platform.supportsTypedData) {
-    var xhr = await HttpRequest.request(url, responseType: 'blob');
-    expect(xhr.status, 200);
-    var blob = xhr.response;
-    expect(blob is Blob, isTrue);
-    expect(blob, isNotNull);
-  }
-}
-
-Future testResponseTypeJson() async {
-  var url = '${window.location.protocol}//${window.location.host}/echo';
-  var data = {
-    'key': 'value',
-    'a': 'b',
-    'one': 2,
-  };
-
-  var xhr = await HttpRequest.request(url,
-      method: 'POST', sendData: json.encode(data), responseType: 'json');
-  expect(xhr.status, 200);
-  var jsonResponse = xhr.response;
-  expect(jsonResponse, data);
-}
-
-Future testResponseHeaders() async {
-  var xhr = await HttpRequest.request(url);
-  var contentTypeHeader = xhr.responseHeaders['content-type'];
-  expect(contentTypeHeader, isNotNull);
-  // Should be like: 'text/plain; charset=utf-8'
-  expect(contentTypeHeader.contains('text/plain'), isTrue);
-  expect(contentTypeHeader.contains('charset=utf-8'), isTrue);
-}
-
-main() {
-  test('supportsProgressEvent', () {
-    expect(HttpRequest.supportsProgressEvent, isTrue);
-  });
-
-  test('supportsOnLoadEnd', () {
-    expect(HttpRequest.supportsLoadEndEvent, isTrue);
-  });
-
-  test('supportsOverrideMimeType', () {
-    expect(HttpRequest.supportsOverrideMimeType, isTrue);
-  });
-
-  asyncTest(() async {
-    await testXhrNoFile();
-    await testXhrFile();
-    await testRequestNoFile();
-    await testRequestFile();
-    await testRequestOnProgress();
-    await testRequestWithCredentialsNoFile();
-    await testRequestWithCredentialsFile();
-    await testGetStringFile();
-    await testGetStringNoFile();
-    await testRequestResponseTypeArrayBuffer();
-    await testOverrideMimeType();
-    await testXhrUpload();
-    await testXhrPostFormData();
-
-    await testRequestResponseTypeBlob();
-
-    await testResponseTypeJson();
-
-    await testResponseHeaders();
-  });
-}
diff --git a/tests/lib_2/html/xsltprocessor_test.dart b/tests/lib_2/html/xsltprocessor_test.dart
deleted file mode 100644
index f6c9927a93c..00000000000
--- a/tests/lib_2/html/xsltprocessor_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-
-// @dart = 2.9
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-
-main() {
-  group('supported', () {
-    test('supported', () {
-      expect(XsltProcessor.supported, true);
-    });
-  });
-
-  group('functional', () {
-    var isXsltProcessor =
-        predicate((x) => x is XsltProcessor, 'is an XsltProcessor');
-
-    var expectation = XsltProcessor.supported ? returnsNormally : throws;
-
-    test('constructorTest', () {
-      expect(() {
-        var processor = new XsltProcessor();
-        expect(processor, isNotNull);
-        expect(processor, isXsltProcessor);
-      }, expectation);
-    });
-  });
-}
diff --git a/tests/lib_2/isolate/appjit_serialization_regression_test.dart b/tests/lib_2/isolate/appjit_serialization_regression_test.dart
deleted file mode 100644
index e6f735d645a..00000000000
--- a/tests/lib_2/isolate/appjit_serialization_regression_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:isolate';
-
-main() {
-  // The SendPorts should not be serialized.
-  var port = new RawReceivePort();
-  Isolate.current.addErrorListener(port.sendPort);
-  Isolate.current.addOnExitListener(port.sendPort);
-  port.close();
-}
diff --git a/tests/lib_2/isolate/bool_from_environment_default_value_test.dart b/tests/lib_2/isolate/bool_from_environment_default_value_test.dart
deleted file mode 100644
index aaa2feb88f2..00000000000
--- a/tests/lib_2/isolate/bool_from_environment_default_value_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:isolate";
-
-import "package:expect/expect.dart";
-
-void test(port) {
-  Expect.isFalse(const bool.fromEnvironment('NOT_FOUND'));
-  Expect.isTrue(const bool.fromEnvironment('NOT_FOUND', defaultValue: true));
-  Expect.isFalse(const bool.fromEnvironment('NOT_FOUND', defaultValue: false));
-  Expect.isNull(const bool.fromEnvironment('NOT_FOUND', defaultValue: null));
-  if (port != null) port.send(null);
-}
-
-main() {
-  test(null);
-  var port = new ReceivePort();
-  Isolate.spawn(test, port.sendPort);
-  port.listen((_) => port.close());
-}
diff --git a/tests/lib_2/isolate/capability_test.dart b/tests/lib_2/isolate/capability_test.dart
deleted file mode 100644
index a6570c56980..00000000000
--- a/tests/lib_2/isolate/capability_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:isolate";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-void main() {
-  asyncStart();
-
-  test(c1, c2) {
-    asyncStart();
-    Expect.notEquals(c1, c2);
-    var receive = new RawReceivePort();
-    receive.sendPort.send(c1);
-    receive.handler = (c3) {
-      Expect.equals(c3, c1);
-      Expect.notEquals(c3, c2);
-      receive.close();
-      asyncEnd();
-    };
-  }
-
-  Capability c1 = new Capability();
-  Capability c2 = new Capability();
-  Capability c3 = (new RawReceivePort()..close()).sendPort;
-  Capability c4 = (new RawReceivePort()..close()).sendPort;
-  test(c1, c2);
-  test(c3, c4);
-  test(c1, c3);
-  asyncEnd();
-}
diff --git a/tests/lib_2/isolate/compile_time_error_test.dart b/tests/lib_2/isolate/compile_time_error_test.dart
deleted file mode 100644
index 88a37d70a3e..00000000000
--- a/tests/lib_2/isolate/compile_time_error_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test program for testing that errors thrown from isolates are
-// processed correctly and don't result in crashes.
-
-library Isolate3NegativeTest;
-
-import 'dart:isolate';
-import 'dart:async';
-import "package:async_helper/async_helper.dart";
-
-class TestClass {
-  TestClass.named(num this.fld1)
-      // Should cause a compilation error (for the spawned isolate). It is a
-      // runtime error for the test.
-      : fld2 = this.fld1 // //# 01: compile-time error
-  ;
-  num fld1;
-  num fld2;
-}
-
-void entry(SendPort replyTo) {
-  var tmp = new TestClass.named(10);
-  replyTo.send("done");
-}
-
-main() {
-  asyncStart();
-  ReceivePort response = new ReceivePort();
-  Isolate.spawn(entry, response.sendPort);
-  response.first.then((_) {
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/isolate/count_test.dart b/tests/lib_2/isolate/count_test.dart
deleted file mode 100644
index 90d3d4e17b1..00000000000
--- a/tests/lib_2/isolate/count_test.dart
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--no-enable-fast-object-copy
-// VMOptions=--enable-fast-object-copy
-
-library CountTest;
-
-import 'dart:isolate';
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-void countMessages(replyTo) {
-  int count = 0;
-  var port = new ReceivePort();
-  replyTo.send(["init", port.sendPort]);
-  port.listen((_message) {
-    int message = _message;
-    if (message == -1) {
-      Expect.equals(count, 10);
-      replyTo.send(["done"]);
-      port.close();
-      return;
-    }
-    count++;
-    Expect.equals(message, count);
-    replyTo.send(["count", message * 2]);
-  });
-}
-
-void main([args, port]) {
-  //testRemote(main, port);
-  ReceivePort local = new ReceivePort();
-  Isolate.spawn(countMessages, local.sendPort);
-  SendPort remote;
-  int count = 0;
-  asyncStart();
-  local.listen((msg) {
-    switch (msg[0]) {
-      case "init":
-        Expect.equals(remote, null);
-        remote = msg[1];
-        remote.send(++count);
-        break;
-      case "count":
-        Expect.equals(msg[1], count * 2);
-        if (count == 10) {
-          remote.send(-1);
-        } else {
-          remote.send(++count);
-        }
-        break;
-      case "done":
-        Expect.equals(count, 10);
-        local.close();
-        asyncEnd();
-        break;
-      default:
-        Expect.fail("unreachable: ${msg[0]}");
-    }
-  });
-}
diff --git a/tests/lib_2/isolate/cross_isolate_message_test.dart b/tests/lib_2/isolate/cross_isolate_message_test.dart
deleted file mode 100644
index 7d23e242954..00000000000
--- a/tests/lib_2/isolate/cross_isolate_message_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test program for testing that isolates can communicate to isolates
-// other than the main isolate.
-
-library CrossIsolateMessageTest;
-
-import 'dart:isolate';
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-/*
- * Everything starts in the main-isolate (in the main-method).
- * The main isolate spawns two isolates: isolate1 (with entry point
- * 'crossIsolate1') and isolate2 (with entry point 'crossIsolate2').
- *
- * The main isolate creates two isolates, isolate1 and isolate2.
- * The second isolate is created with a send-port being listened on by
- * isolate1. A message is passed along this from isolate2 to isolate1.
- * Isolate1 then sends the result back to the main isolate for final checking.
- */
-
-void crossIsolate1(SendPort mainIsolate) {
-  ReceivePort local = new ReceivePort();
-  mainIsolate.send(["ready1", local.sendPort]);
-  local.first.then((msg) {
-    // Message from crossIsolate2
-    Expect.equals(msg[0], "fromIsolate2");
-    mainIsolate.send(["fromIsolate1", msg[1] + 58]); // 100.
-  });
-}
-
-void crossIsolate2(SendPort toIsolate1) {
-  toIsolate1.send(["fromIsolate2", 42]);
-}
-
-void main([args, port]) {
-  ReceivePort fromIsolate1 = new ReceivePort();
-  Isolate.spawn(crossIsolate1, fromIsolate1.sendPort);
-
-  asyncStart();
-  fromIsolate1.listen((msg) {
-    switch (msg[0]) {
-      case "ready1":
-        SendPort toIsolate1 = msg[1];
-        Isolate.spawn(crossIsolate2, toIsolate1);
-        break;
-      case "fromIsolate1":
-        Expect.equals(msg[1], 100);
-        fromIsolate1.close();
-        break;
-      default:
-        Expect.fail("unreachable! Tag: ${msg[0]}");
-    }
-  }, onDone: asyncEnd);
-}
diff --git a/tests/lib_2/isolate/deferred_in_isolate2_lib.dart b/tests/lib_2/isolate/deferred_in_isolate2_lib.dart
deleted file mode 100644
index c53800d9551..00000000000
--- a/tests/lib_2/isolate/deferred_in_isolate2_lib.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Used by deferred_in_isolate2_test.
-library deferred_in_isolate2_lib;
-
-String f() => "hi";
diff --git a/tests/lib_2/isolate/deferred_in_isolate2_test.dart b/tests/lib_2/isolate/deferred_in_isolate2_test.dart
deleted file mode 100644
index 7f1cb88af02..00000000000
--- a/tests/lib_2/isolate/deferred_in_isolate2_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library deferred_in_isolate2_test;
-
-import 'dart:isolate';
-import 'package:async_helper/async_minitest.dart';
-
-import 'deferred_in_isolate2_lib.dart' deferred as lib;
-
-loadDeferred(port) {
-  lib.loadLibrary().then((_) {
-    port.send(lib.f());
-  });
-}
-
-main() {
-  test("Deferred loading in isolate", () {
-    ReceivePort port = new ReceivePort();
-    port.first.then(expectAsync((msg) {
-      expect(msg, equals("hi"));
-    }));
-    Isolate.spawn(loadDeferred, port.sendPort);
-  });
-}
diff --git a/tests/lib_2/isolate/deferred_in_isolate_app.dart b/tests/lib_2/isolate/deferred_in_isolate_app.dart
deleted file mode 100644
index f32b6835702..00000000000
--- a/tests/lib_2/isolate/deferred_in_isolate_app.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'deferred_in_isolate_lib.dart' deferred as test;
-
-void main(args, msg) {
-  assert(args != null);
-  assert(args.length == 1);
-  assert(msg != null);
-  assert(msg.length == 1);
-
-  var expectedMsg = args[0];
-  var replyPort = msg[0];
-
-  try {
-    print("BeforeLibraryLoading");
-
-    test.loadLibrary().then((_) {
-      var obj = new test.DeferredObj(expectedMsg);
-      replyPort.send(obj.toString());
-    }).catchError((error) {
-      replyPort.send("Error from isolate:\n$error");
-    });
-  } catch (exception, stacktrace) {
-    replyPort.send("Exception from isolate:\n$exception\n$stacktrace");
-  }
-}
diff --git a/tests/lib_2/isolate/deferred_in_isolate_lib.dart b/tests/lib_2/isolate/deferred_in_isolate_lib.dart
deleted file mode 100644
index a618fcfe0ae..00000000000
--- a/tests/lib_2/isolate/deferred_in_isolate_lib.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library deferred_in_isolate_lib;
-
-class DeferredObj {
-  DeferredObj(this._val);
-  toString() => "$_val";
-
-  var _val;
-}
diff --git a/tests/lib_2/isolate/deferred_in_isolate_test.dart b/tests/lib_2/isolate/deferred_in_isolate_test.dart
deleted file mode 100644
index 42ae7e24f0b..00000000000
--- a/tests/lib_2/isolate/deferred_in_isolate_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that deferred libraries are supported from isolates other than the root
-// isolate.
-
-import 'dart:isolate';
-
-main() {
-  try {
-    var receivePort = new RawReceivePort();
-    var expectedMsg = "Deferred Loaded.";
-
-    receivePort.handler = (msg) {
-      if (msg != expectedMsg) {
-        print("Test failed.");
-        throw msg; // Fail the test if the message is not expected.
-      }
-      print('Test done.');
-      receivePort.close();
-    };
-
-    var stopwatch = new Stopwatch()..start();
-    Isolate.spawnUri(new Uri(path: 'deferred_in_isolate_app.dart'),
-        [expectedMsg], [receivePort.sendPort]).then((isolate) {
-      print('Isolate spawn: ${stopwatch.elapsedMilliseconds}ms');
-    }).catchError((error) {
-      print(error);
-    });
-  } catch (exception, stackTrace) {
-    print('Test failed.');
-    print(exception);
-    print(stackTrace);
-    rethrow;
-  }
-}
diff --git a/tests/lib_2/isolate/deferred_loaded_lib.dart b/tests/lib_2/isolate/deferred_loaded_lib.dart
deleted file mode 100644
index 4541d565558..00000000000
--- a/tests/lib_2/isolate/deferred_loaded_lib.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class FromChildIsolate {
-  String toString() => 'from child isolate';
-  int get fld => 10;
-}
diff --git a/tests/lib_2/isolate/enum_const_test.dart b/tests/lib_2/isolate/enum_const_test.dart
deleted file mode 100644
index 09e3d2dafdb..00000000000
--- a/tests/lib_2/isolate/enum_const_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:isolate";
-import "package:expect/expect.dart";
-
-enum Foo { BAR, BAZ }
-
-verify(val) {
-  Expect.identical(Foo.BAR, val);
-}
-
-main() {
-  test1(); //# 01: ok
-  test2(); //# 02: ok
-}
-
-test1() => verify(Foo.BAR);
-
-test2() {
-  var rp;
-  rp = new RawReceivePort((val) {
-    verify(val);
-    rp.close();
-  });
-  rp.sendPort.send(Foo.BAR);
-}
diff --git a/tests/lib_2/isolate/error_at_spawn_test.dart b/tests/lib_2/isolate/error_at_spawn_test.dart
deleted file mode 100644
index 0847d2f5450..00000000000
--- a/tests/lib_2/isolate/error_at_spawn_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library error_at_spawn;
-
-import "dart:isolate";
-import "dart:async";
-import "package:async_helper/async_helper.dart";
-import "package:expect/expect.dart";
-
-isomain(args) {
-  throw new ArgumentError("fast error");
-}
-
-main() {
-  asyncStart();
-
-  // Capture errors from other isolate as raw messages.
-  RawReceivePort errorPort = new RawReceivePort();
-  errorPort.handler = (message) {
-    String error = message[0];
-    String stack = message[1];
-    Expect.equals(new ArgumentError("fast error").toString(), "$error");
-    errorPort.close();
-    asyncEnd();
-  };
-
-  Isolate.spawn(isomain, null,
-      // Setup handler as part of spawn.
-      errorsAreFatal: false,
-      onError: errorPort.sendPort);
-}
diff --git a/tests/lib_2/isolate/error_at_spawnuri_iso.dart b/tests/lib_2/isolate/error_at_spawnuri_iso.dart
deleted file mode 100644
index b2af5e2380c..00000000000
--- a/tests/lib_2/isolate/error_at_spawnuri_iso.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library error_at_spawnuri_iso;
-
-main() {
-  throw new ArgumentError("fast error");
-}
diff --git a/tests/lib_2/isolate/error_at_spawnuri_test.dart b/tests/lib_2/isolate/error_at_spawnuri_test.dart
deleted file mode 100644
index 03297985679..00000000000
--- a/tests/lib_2/isolate/error_at_spawnuri_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library error_at_spawnuri;
-
-import "dart:isolate";
-import "package:async_helper/async_helper.dart";
-import "package:expect/expect.dart";
-
-main() {
-  asyncStart();
-
-  // Capture errors from other isolate as raw messages.
-  RawReceivePort errorPort = new RawReceivePort();
-  errorPort.handler = (message) {
-    String error = message[0];
-    String stack = message[1];
-    Expect.equals(new ArgumentError("fast error").toString(), "$error");
-    errorPort.close();
-    asyncEnd();
-  };
-
-  Isolate.spawnUri(Uri.parse("error_at_spawnuri_iso.dart"), [], null,
-      // Setup handler as part of spawn.
-      errorsAreFatal: false,
-      onError: errorPort.sendPort);
-}
diff --git a/tests/lib_2/isolate/error_exit_at_spawn_test.dart b/tests/lib_2/isolate/error_exit_at_spawn_test.dart
deleted file mode 100644
index 83f29d128a7..00000000000
--- a/tests/lib_2/isolate/error_exit_at_spawn_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library error_exit_at_spawn;
-
-import "dart:isolate";
-
-import 'error_exit_at_spawning_shared.dart';
-
-main() {
-  testIsolate((SendPort replyPort, SendPort errorPort, SendPort exitPort) {
-    Isolate.spawn(isomain, replyPort,
-        // Setup handlers as part of spawn.
-        errorsAreFatal: false,
-        onError: errorPort,
-        onExit: exitPort);
-  });
-}
diff --git a/tests/lib_2/isolate/error_exit_at_spawning_shared.dart b/tests/lib_2/isolate/error_exit_at_spawning_shared.dart
deleted file mode 100644
index c5982e1918e..00000000000
--- a/tests/lib_2/isolate/error_exit_at_spawning_shared.dart
+++ /dev/null
@@ -1,93 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library error_exit_at_spawning_shared;
-
-import "dart:isolate";
-
-import "package:async_helper/async_helper.dart";
-import "package:expect/expect.dart";
-
-// Used by
-//   isolate/error_exit_at_spawn_test.dart
-//   isolate/error_exit_at_spawnuri_test.dart
-
-isomain(replyPort) {
-  final RawReceivePort port = new RawReceivePort();
-  port.handler = (v) {
-    switch (v) {
-      case 0:
-        replyPort.send(42);
-        break;
-      case 1:
-        throw new ArgumentError("whoops");
-      case 2:
-        throw new RangeError.value(37);
-      case 3:
-        port.close();
-    }
-  };
-  replyPort.send(port.sendPort);
-}
-
-testIsolate(
-    void spawnIsolate(SendPort reply, SendPort errorPort, SendPort exitPort)) {
-  asyncStart();
-  // Setup the port for communication with the newly spawned isolate.
-  RawReceivePort reply = new RawReceivePort(null);
-  SendPort sendPort;
-  int state = 0;
-  reply.handler = (port) {
-    sendPort = port;
-    port.send(state);
-    reply.handler = (v) {
-      Expect.equals(0, state);
-      Expect.equals(42, v);
-      state++;
-      sendPort.send(state);
-    };
-  };
-
-  // Capture errors from other isolate as raw messages.
-  RawReceivePort errorPort = new RawReceivePort();
-  errorPort.handler = (List errorStackTuple) {
-    String error = errorStackTuple[0];
-    switch (state) {
-      case 1:
-        Expect.equals(new ArgumentError("whoops").toString(), "$error");
-        state++;
-        sendPort.send(state);
-        break;
-      case 2:
-        Expect.equals(new RangeError.value(37).toString(), "$error");
-        state++;
-        sendPort.send(state);
-        reply.close();
-        errorPort.close();
-        break;
-      default:
-        throw "Bad state for error: $state: $error";
-    }
-  };
-
-  // Get exit notifications from other isolate as raw messages.
-  RawReceivePort exitPort = new RawReceivePort();
-  exitPort.handler = (message) {
-    // onExit ports registered at spawn cannot have a particular message
-    // associated.
-    Expect.equals(null, message);
-    // Only exit after sending the termination message.
-    Expect.equals(3, state);
-    exitPort.close();
-    asyncEnd();
-  };
-
-  spawnIsolate(reply.sendPort, errorPort.sendPort, exitPort.sendPort);
-}
-
-// Used by
-//    isolate/error_exit_at_spawnuri_test.dart
-main(args, replyPort) => isomain(replyPort);
diff --git a/tests/lib_2/isolate/error_exit_at_spawnuri_test.dart b/tests/lib_2/isolate/error_exit_at_spawnuri_test.dart
deleted file mode 100644
index b4b583154a4..00000000000
--- a/tests/lib_2/isolate/error_exit_at_spawnuri_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library error_exit_at_spawnuri;
-
-import "dart:isolate";
-
-import 'error_exit_at_spawning_shared.dart';
-
-main() {
-  testIsolate((SendPort replyPort, SendPort errorPort, SendPort exitPort) {
-    Isolate.spawnUri(
-        Uri.parse("error_exit_at_spawning_shared.dart"), [], replyPort,
-        // Setup handlers as part of spawn.
-        errorsAreFatal: false,
-        onError: errorPort,
-        onExit: exitPort);
-  });
-}
diff --git a/tests/lib_2/isolate/exit_at_spawn_test.dart b/tests/lib_2/isolate/exit_at_spawn_test.dart
deleted file mode 100644
index 203ea6682f7..00000000000
--- a/tests/lib_2/isolate/exit_at_spawn_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library exit_at_spawn;
-
-import "dart:isolate";
-import "dart:async";
-import "package:async_helper/async_helper.dart";
-import "package:expect/expect.dart";
-
-// Isolate exiting immediately.
-isomain(args) {}
-
-// Isolate exiting after running microtasks.
-isomain2(args) {
-  scheduleMicrotask(() {});
-}
-
-// Isolate exiting after running timers.
-isomain3(args) {
-  new Timer(Duration.zero, () {});
-}
-
-main() {
-  asyncStart();
-
-  test(isomain);
-  test(isomain2);
-  test(isomain3);
-
-  asyncEnd();
-}
-
-void test(mainFunction) {
-  asyncStart();
-
-  RawReceivePort exitPort = new RawReceivePort();
-  exitPort.handler = (message) {
-    Expect.equals(null, message);
-    exitPort.close();
-    asyncEnd();
-  };
-
-  // Ignore returned Future.
-  Isolate.spawn(mainFunction, null,
-      // Setup handler as part of spawn.
-      errorsAreFatal: false,
-      onExit: exitPort.sendPort);
-}
diff --git a/tests/lib_2/isolate/exit_at_spawnuri_iso.dart b/tests/lib_2/isolate/exit_at_spawnuri_iso.dart
deleted file mode 100644
index 0780b33d72e..00000000000
--- a/tests/lib_2/isolate/exit_at_spawnuri_iso.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library exit_at_spawn_iso;
-
-main() {}
diff --git a/tests/lib_2/isolate/exit_at_spawnuri_test.dart b/tests/lib_2/isolate/exit_at_spawnuri_test.dart
deleted file mode 100644
index cc4000a2728..00000000000
--- a/tests/lib_2/isolate/exit_at_spawnuri_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library exit_at_spawn;
-
-import "dart:isolate";
-import "package:async_helper/async_helper.dart";
-import "package:expect/expect.dart";
-
-main() {
-  asyncStart();
-
-  RawReceivePort exitPort = new RawReceivePort();
-  exitPort.handler = (message) {
-    Expect.equals(null, message);
-    exitPort.close();
-    asyncEnd();
-  };
-
-  // Ignore returned Future.
-  Isolate.spawnUri(Uri.parse("exit_at_spawnuri_iso.dart"), [], null,
-      // Setup handler as part of spawn.
-      errorsAreFatal: false,
-      onExit: exitPort.sendPort);
-}
diff --git a/tests/lib_2/isolate/fast_copy_during_initial_message_test.dart b/tests/lib_2/isolate/fast_copy_during_initial_message_test.dart
deleted file mode 100644
index 8111991e594..00000000000
--- a/tests/lib_2/isolate/fast_copy_during_initial_message_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--enable-fast-object-copy
-
-import "dart:isolate";
-
-import "package:async_helper/async_helper.dart";
-import "package:expect/expect.dart";
-
-echo(message) {
-  var string = message[0] as String;
-  var replyPort = message[1] as SendPort;
-  replyPort.send(string);
-}
-
-main() {
-  asyncStart();
-
-  // This string is constructed at runtime, so it is not const and won't be
-  // identical because of canonicalization. It will only be identical if it is
-  // sent by pointer.
-  var sentString = "xyz" * 2;
-
-  var port;
-  port = new RawReceivePort((message) {
-    var receivedString = message as String;
-
-    Expect.identical(sentString, receivedString);
-
-    port.close();
-    asyncEnd();
-  });
-
-  Isolate.spawn(echo, [sentString, port.sendPort]);
-}
diff --git a/tests/lib_2/isolate/function_send1_test.dart b/tests/lib_2/isolate/function_send1_test.dart
deleted file mode 100644
index c4defba879b..00000000000
--- a/tests/lib_2/isolate/function_send1_test.dart
+++ /dev/null
@@ -1,151 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:isolate";
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-void toplevel(port, message) {
-  port.send("toplevel:$message");
-}
-
-Function createFuncToplevel() => (p, m) {
-      p.send(m);
-    };
-
-class C {
-  Function initializer;
-  Function body;
-  C()
-      : initializer = ((p, m) {
-          throw "initializer";
-        }) {
-    body = (p, m) {
-      throw "body";
-    };
-  }
-  static void staticFunc(port, message) {
-    port.send("static:$message");
-  }
-
-  static Function createFuncStatic() => (p, m) {
-        throw "static expr";
-      };
-  void instanceMethod(p, m) {
-    throw "instanceMethod";
-  }
-
-  Function createFuncMember() => (p, m) {
-        throw "instance expr";
-      };
-  void call(n, p) {
-    throw "C";
-  }
-}
-
-class Callable {
-  void call(p, m) {
-    p.send(["callable", m]);
-  }
-}
-
-void main() {
-  asyncStart();
-
-  // top-level functions, static functions, closures, instance methods
-  // or function expressions are not sendable to an isolate spawned using
-  // spawnUri.
-  testUnsendable("toplevel", toplevel);
-  testUnsendable("static", C.staticFunc);
-  var c = new C();
-  testUnsendable("instance method", c.instanceMethod);
-  testUnsendable("static context expression", createFuncToplevel());
-  testUnsendable("static context expression", C.createFuncStatic());
-  testUnsendable("initializer context expression", c.initializer);
-  testUnsendable("constructor context expression", c.body);
-  testUnsendable("instance method context expression", c.createFuncMember());
-  testUnsendable("toplevel", toplevel.call);
-  testUnsendable("static", C.staticFunc.call);
-  testUnsendable("callable object", new Callable().call);
-
-  asyncEnd();
-  return;
-}
-
-// Create a receive port that expects exactly one message.
-// Pass the message to `callback` and return the sendPort.
-SendPort singleMessagePort(callback) {
-  var p;
-  p = new RawReceivePort((v) {
-    p.close();
-    callback(v);
-  });
-  return p.sendPort;
-}
-
-// A singleMessagePort that expects the message to be a specific value.
-SendPort expectMessagePort(message) {
-  asyncStart();
-  return singleMessagePort((v) {
-    Expect.equals(message, v);
-    asyncEnd();
-  });
-}
-
-// Creates a new isolate and a pair of ports that expect a single message
-// to be sent to the other isolate and back to the callback function.
-Future<SendPort> echoPort(callback(value)) {
-  Completer<SendPort> completer = new Completer<SendPort>();
-  SendPort replyPort = singleMessagePort(callback);
-  RawReceivePort initPort;
-  initPort = new RawReceivePort((p) {
-    completer.complete(p);
-    initPort.close();
-  });
-  return Isolate.spawn(_echo, [replyPort, initPort.sendPort]).then(
-      (isolate) => completer.future);
-}
-
-void _echo(msg) {
-  var replyPort = msg[0];
-  RawReceivePort requestPort;
-  requestPort = new RawReceivePort((msg) {
-    replyPort.send(msg);
-    requestPort.close(); // Single echo only.
-  });
-  msg[1].send(requestPort.sendPort);
-}
-
-// Creates other isolate that waits for a single message, `msg`, on the returned
-// port, and executes it as `msg[0](msg[1],msg[2])` in the other isolate.
-Future<SendPort> callPort() {
-  Completer<SendPort> completer = new Completer<SendPort>();
-  SendPort initPort = singleMessagePort(completer.complete);
-  return Isolate.spawn(_call, initPort).then((_) => completer.future);
-}
-
-void _call(initPort) {
-  initPort.send(singleMessagePort(callFunc));
-}
-
-void testUnsendable(name, func) {
-  asyncStart();
-  Isolate
-      .spawnUri(Uri.parse("function_send_test.dart"), [], func)
-      .then((v) => throw "allowed spawn direct?", onError: (e, s) {
-    asyncEnd();
-  });
-  asyncStart();
-  Isolate.spawnUri(Uri.parse("function_send_test.dart"), [], [func]).then(
-      (v) => throw "allowed spawn wrapped?", onError: (e, s) {
-    asyncEnd();
-  });
-}
-
-void callFunc(message) {
-  message[0](message[1], message[2]);
-}
diff --git a/tests/lib_2/isolate/function_send_test.dart b/tests/lib_2/isolate/function_send_test.dart
deleted file mode 100644
index d3ac5fd0e68..00000000000
--- a/tests/lib_2/isolate/function_send_test.dart
+++ /dev/null
@@ -1,164 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--no-enable-fast-object-copy
-// VMOptions=--enable-fast-object-copy
-
-import "dart:isolate";
-import "dart:io";
-import "dart:async";
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-void toplevel(port, message) {
-  port.send("toplevel:$message");
-}
-
-Function createFuncToplevel() => (p, m) {
-      p.send(m);
-    };
-
-class C {
-  Function initializer;
-  Function body;
-  C()
-      : initializer = ((p, m) {
-          throw "initializer";
-        }) {
-    body = (p, m) {
-      throw "body";
-    };
-  }
-  static void staticFunc(port, message) {
-    port.send("static:$message");
-  }
-
-  static Function createFuncStatic() => (p, m) {
-        throw "static expr";
-      };
-  void instanceMethod(p, m) {
-    throw "instanceMethod";
-  }
-
-  Function createFuncMember() => (p, m) {
-        throw "instance expr";
-      };
-  void call(n, p) {
-    throw "C";
-  }
-}
-
-class Callable {
-  void call(p, m) {
-    p.send(["callable", m]);
-  }
-}
-
-void main() {
-  asyncStart();
-
-  // Sendables are top-level functions and static functions only.
-  testSendable("toplevel", toplevel);
-  testSendable("static", C.staticFunc);
-
-  // The result of `toplevel.call` and `staticFunc.call` may or may not be
-  // identical to `toplevel` and `staticFunc` respectively. If they are not
-  // equal, they may or may not be considered toplevel/static functions anyway,
-  // and therefore sendable. The VM and dart2js currently disagree on whether
-  // `toplevel` and `toplevel.call` are identical, both allow them to be sent.
-  // These two tests should be considered canaries for accidental behavior
-  // change rather than requirements.
-  testSendable("toplevel", toplevel.call);
-  testSendable("static", C.staticFunc.call);
-
-  asyncEnd();
-  return;
-}
-
-// Create a receive port that expects exactly one message.
-// Pass the message to `callback` and return the sendPort.
-SendPort singleMessagePort(callback) {
-  var p;
-  p = new RawReceivePort((v) {
-    p.close();
-    callback(v);
-  });
-  return p.sendPort;
-}
-
-// A singleMessagePort that expects the message to be a specific value.
-SendPort expectMessagePort(message) {
-  asyncStart();
-  return singleMessagePort((v) {
-    Expect.equals(message, v);
-    asyncEnd();
-  });
-}
-
-void testSendable(name, func) {
-  // Function as spawn message.
-  Isolate.spawn(callFunc, [func, expectMessagePort("$name:spawn"), "spawn"]);
-
-  // Send function to same isolate.
-  var reply = expectMessagePort("$name:direct");
-  singleMessagePort(callFunc).send([func, reply, "direct"]);
-
-  // Send function to other isolate, call it there.
-  reply = expectMessagePort("$name:other isolate");
-  callPort().then((p) {
-    p.send([func, reply, "other isolate"]);
-  });
-
-  // Round-trip function trough other isolate.
-  echoPort((roundtripFunc) {
-    Expect.identical(func, roundtripFunc, "$name:send through isolate");
-  }).then((port) {
-    port.send(func);
-  });
-}
-
-// Creates a new isolate and a pair of ports that expect a single message
-// to be sent to the other isolate and back to the callback function.
-Future<SendPort> echoPort(callback(value)) {
-  final completer = new Completer<SendPort>();
-  SendPort replyPort = singleMessagePort(callback);
-  RawReceivePort initPort;
-  initPort = new RawReceivePort((p) {
-    completer.complete(p);
-    initPort.close();
-  });
-  return Isolate.spawn(_echo, [replyPort, initPort.sendPort])
-      .then((isolate) => completer.future);
-}
-
-void _echo(msg) {
-  var replyPort = msg[0];
-  RawReceivePort requestPort;
-  requestPort = new RawReceivePort((msg) {
-    replyPort.send(msg);
-    requestPort.close(); // Single echo only.
-  });
-  msg[1].send(requestPort.sendPort);
-}
-
-// Creates other isolate that waits for a single message, `msg`, on the returned
-// port, and executes it as `msg[0](msg[1],msg[2])` in the other isolate.
-Future<SendPort> callPort() {
-  final completer = new Completer<SendPort>();
-  SendPort initPort = singleMessagePort(completer.complete);
-  return Isolate.spawn(_call, initPort).then((_) => completer.future);
-}
-
-void _call(initPort) {
-  initPort.send(singleMessagePort(callFunc));
-}
-
-void nop(_) {}
-
-void callFunc(message) {
-  message[0](message[1], message[2]);
-}
diff --git a/tests/lib_2/isolate/handle_error2_test.dart b/tests/lib_2/isolate/handle_error2_test.dart
deleted file mode 100644
index 33fa3711390..00000000000
--- a/tests/lib_2/isolate/handle_error2_test.dart
+++ /dev/null
@@ -1,89 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library handle_error_test;
-
-import "dart:isolate";
-import "dart:async";
-import "package:async_helper/async_helper.dart";
-import "package:expect/expect.dart";
-
-isomain1(replyPort) {
-  RawReceivePort port = new RawReceivePort();
-  port.handler = (v) {
-    switch (v) {
-      case 0:
-        replyPort.send(42);
-        break;
-      case 1:
-        throw new ArgumentError("whoops");
-      case 2:
-        throw new RangeError.value(37);
-      case 3:
-        port.close();
-    }
-  };
-  replyPort.send(port.sendPort);
-}
-
-/// Do Isolate.spawn(entry) and get a sendPort from the isolate that it
-/// expects commands on.
-/// The isolate has errors set to non-fatal.
-/// Returns a list of `[isolate, commandPort]` in a future.
-Future spawn(entry) {
-  ReceivePort reply = new ReceivePort();
-  var isolate = Isolate.spawn(entry, reply.sendPort, paused: true);
-  return isolate.then((Isolate isolate) {
-    isolate.setErrorsFatal(false);
-    isolate.resume(isolate.pauseCapability);
-    Future result = reply.first.then((sendPort) {
-      return [isolate, sendPort];
-    });
-    return result;
-  });
-}
-
-main() {
-  asyncStart();
-  RawReceivePort reply = new RawReceivePort(null);
-  // Create two isolates waiting for commands, with errors non-fatal.
-  Future iso1 = spawn(isomain1);
-  Future iso2 = spawn(isomain1);
-  Future.wait([iso1, iso2]).then((l) {
-    var isolate1 = l[0][0];
-    var sendPort1 = l[0][1];
-    var isolate2 = l[1][0];
-    var sendPort2 = l[1][1];
-    Stream errors = isolate1.errors; // Broadcast stream, never a done message.
-    int state = 1;
-    var subscription;
-    subscription = errors.listen(null, onError: (error, stack) {
-      switch (state) {
-        case 1:
-          Expect.equals(new ArgumentError("whoops").toString(), "$error");
-          state++;
-          break;
-        case 2:
-          Expect.equals(new RangeError.value(37).toString(), "$error");
-          state++;
-          reply.close();
-          subscription.cancel();
-          asyncEnd();
-          break;
-        default:
-          throw "Bad state for error: $state: $error";
-      }
-    });
-    sendPort1.send(0);
-    sendPort2.send(0);
-    sendPort1.send(1);
-    sendPort2.send(1);
-    sendPort1.send(2);
-    sendPort2.send(2);
-    sendPort1.send(3);
-    sendPort2.send(3);
-  });
-}
diff --git a/tests/lib_2/isolate/handle_error3_test.dart b/tests/lib_2/isolate/handle_error3_test.dart
deleted file mode 100644
index f6d3c9b71c9..00000000000
--- a/tests/lib_2/isolate/handle_error3_test.dart
+++ /dev/null
@@ -1,117 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library handle_error_test;
-
-import "dart:isolate";
-import "dart:async";
-import "package:async_helper/async_helper.dart";
-import "package:expect/expect.dart";
-
-isomain1(replyPort) {
-  RawReceivePort port = new RawReceivePort();
-  port.handler = (v) {
-    switch (v) {
-      case 0:
-        replyPort.send(42);
-        break;
-      case 1:
-        throw new ArgumentError("whoops");
-      case 2:
-        throw new RangeError.value(37);
-      case 3:
-        port.close();
-    }
-  };
-  replyPort.send(port.sendPort);
-}
-
-/// Do Isolate.spawn(entry) and get a sendPort from the isolate that it
-/// expects commands on.
-/// The isolate has errors set to non-fatal.
-/// Returns a list of `[isolate, commandPort]` in a future.
-Future spawn(entry) {
-  ReceivePort reply = new ReceivePort();
-  var isolate = Isolate.spawn(entry, reply.sendPort, paused: true);
-  return isolate.then((Isolate isolate) {
-    isolate.setErrorsFatal(false);
-    isolate.resume(isolate.pauseCapability);
-    Future result = reply.first.then((sendPort) {
-      return [isolate, sendPort];
-    });
-    return result;
-  });
-}
-
-main() {
-  asyncStart();
-  asyncStart();
-  RawReceivePort reply = new RawReceivePort(null);
-  RawReceivePort reply2 = new RawReceivePort(null);
-  // Create two isolates waiting for commands, with errors non-fatal.
-  Future iso1 = spawn(isomain1);
-  Future iso2 = spawn(isomain1);
-  Future.wait([iso1, iso2]).then((l) {
-    var isolate1 = l[0][0];
-    var sendPort1 = l[0][1];
-    var isolate2 = l[1][0];
-    var sendPort2 = l[1][1];
-    // Capture errors from one isolate as stream.
-    Stream errors = isolate1.errors; // Broadcast stream, never a done message.
-    int state = 1;
-    var subscription;
-    subscription = errors.listen(null, onError: (error, stack) {
-      switch (state) {
-        case 1:
-          Expect.equals(new ArgumentError("whoops").toString(), "$error");
-          state++;
-          break;
-        case 2:
-          Expect.equals(new RangeError.value(37).toString(), "$error");
-          state++;
-          reply.close();
-          subscription.cancel();
-          asyncEnd();
-          break;
-        default:
-          throw "Bad state for error: $state: $error";
-      }
-    });
-    // Capture errors from other isolate as raw messages.
-    RawReceivePort errorPort2 = new RawReceivePort();
-    int state2 = 1;
-    errorPort2.handler = (message) {
-      String error = message[0];
-      String stack = message[1];
-      switch (state2) {
-        case 1:
-          Expect.equals(new ArgumentError("whoops").toString(), "$error");
-          state2++;
-          break;
-        case 2:
-          Expect.equals(new RangeError.value(37).toString(), "$error");
-          state2++;
-          reply2.close();
-          isolate2.removeErrorListener(errorPort2.sendPort);
-          errorPort2.close();
-          asyncEnd();
-          break;
-        default:
-          throw "Bad state-2 for error: $state: $error";
-      }
-    };
-    isolate2.addErrorListener(errorPort2.sendPort);
-
-    sendPort1.send(0);
-    sendPort2.send(0);
-    sendPort1.send(1);
-    sendPort2.send(1);
-    sendPort1.send(2);
-    sendPort2.send(2);
-    sendPort1.send(3);
-    sendPort2.send(3);
-  });
-}
diff --git a/tests/lib_2/isolate/handle_error_test.dart b/tests/lib_2/isolate/handle_error_test.dart
deleted file mode 100644
index c095862145a..00000000000
--- a/tests/lib_2/isolate/handle_error_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library handle_error_test;
-
-import "dart:isolate";
-import "dart:async";
-import "package:async_helper/async_helper.dart";
-import "package:expect/expect.dart";
-
-isomain1(replyPort) {
-  RawReceivePort port = new RawReceivePort();
-  port.handler = (v) {
-    switch (v) {
-      case 0:
-        replyPort.send(42);
-        break;
-      case 1:
-        throw new ArgumentError("whoops");
-      case 2:
-        throw new RangeError.value(37);
-      case 3:
-        port.close();
-    }
-  };
-  replyPort.send(port.sendPort);
-}
-
-main() {
-  asyncStart();
-  RawReceivePort reply = new RawReceivePort(null);
-  // Start paused so we have time to set up the error handler.
-  Isolate.spawn(isomain1, reply.sendPort, paused: true).then((Isolate isolate) {
-    isolate.setErrorsFatal(false);
-    Stream errors = isolate.errors; // Broadcast stream, never a done message.
-    SendPort sendPort;
-    StreamSubscription subscription;
-    int state = 0;
-    reply.handler = (port) {
-      sendPort = port;
-      port.send(state);
-      reply.handler = (v) {
-        Expect.equals(0, state);
-        Expect.equals(42, v);
-        state++;
-        sendPort.send(state);
-      };
-    };
-    subscription = errors.listen(null, onError: (error, stack) {
-      switch (state) {
-        case 1:
-          Expect.equals(new ArgumentError("whoops").toString(), "$error");
-          state++;
-          sendPort.send(state);
-          break;
-        case 2:
-          Expect.equals(new RangeError.value(37).toString(), "$error");
-          state++;
-          sendPort.send(state);
-          reply.close();
-          subscription.cancel();
-          asyncEnd();
-          break;
-        default:
-          throw "Bad state for error: $state: $error";
-      }
-    });
-    isolate.resume(isolate.pauseCapability);
-  });
-}
diff --git a/tests/lib_2/isolate/illegal_msg_mirror_test.dart b/tests/lib_2/isolate/illegal_msg_mirror_test.dart
deleted file mode 100644
index 0e4fa155826..00000000000
--- a/tests/lib_2/isolate/illegal_msg_mirror_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library illegal_msg_mirror_test;
-
-import "dart:isolate";
-import "dart:mirrors";
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-class Class {
-  method() {}
-}
-
-echo(sendPort) {
-  final port = new ReceivePort();
-  sendPort.send(port.sendPort);
-  port.listen((msg) {
-    sendPort.send("echoing ${msg(1)}}");
-  });
-}
-
-void main([args, port]) {
-  asyncStart();
-
-  final ReceivePort port = new ReceivePort();
-
-  // Ignore returned Future.
-  Isolate.spawn(echo, port.sendPort);
-
-  port.first.then((_snd) {
-    SendPort snd = _snd;
-    final methodMirror = reflectClass(Class).declarations[#method];
-    try {
-      snd.send(methodMirror);
-    } catch (e) {
-      // Expected behavior.
-      port.close();
-      asyncEnd();
-      return;
-    }
-    Expect.fail("Should not be reached. Message sending didn't throw.");
-  });
-}
diff --git a/tests/lib_2/isolate/int32_length_overflow_test.dart b/tests/lib_2/isolate/int32_length_overflow_test.dart
deleted file mode 100644
index dfb1c662716..00000000000
--- a/tests/lib_2/isolate/int32_length_overflow_test.dart
+++ /dev/null
@@ -1,95 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "dart:isolate";
-import "dart:typed_data";
-import "package:expect/expect.dart";
-
-const large = 1 << 30;
-
-void child(replyPort) {
-  print("Child start");
-
-  print("Child Uint8List");
-  dynamic x = new Uint8List(large);
-  for (int i = 0; i < 4; i++) {
-    x[i] = i;
-  }
-  for (int i = x.length - 4; i < x.length; i++) {
-    x[i] = x.length - i;
-  }
-  replyPort.send(x);
-  x = null;
-
-  // Too slow.
-  // print("Child Array");
-  // x = new List.filled(large, null);
-  // for (int i = 0; i < 4; i++) {
-  //   x[i] = i;
-  // }
-  // replyPort.send(x);
-  // x = null;
-
-  print("Child OneByteString");
-  x = null;
-  x = "Z";
-  while (x.length < large) {
-    x = x * 2;
-  }
-  replyPort.send(x);
-  x = null;
-
-  print("Child done");
-}
-
-Future<void> main(List<String> args) async {
-  print("Parent start");
-
-  ReceivePort port = new ReceivePort();
-  Isolate.spawn(child, port.sendPort);
-  StreamIterator<dynamic> incoming = new StreamIterator<dynamic>(port);
-
-  print("Parent Uint8");
-  Expect.isTrue(await incoming.moveNext());
-  dynamic x = incoming.current;
-  Expect.isTrue(x is Uint8List);
-  Expect.equals(large, x.length);
-  for (int i = 0; i < 4; i++) {
-    Expect.equals(i, x[i]);
-  }
-  for (int i = x.length - 4; i < x.length; i++) {
-    Expect.equals(x.length - i, x[i]);
-  }
-  x = null;
-
-  // Too slow.
-  // print("Parent Array");
-  // Expect.isTrue(await incoming.moveNext());
-  // x = incoming.current;
-  // Expect.isTrue(x is List);
-  // Expect.equals(large, x.length);
-  // for (int i = 0; i < 4; i++) {
-  //   Expect.equals(i, x[i]);
-  // }
-  // x = null;
-
-  print("Parent OneByteString");
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is String);
-  Expect.equals(large, x.length);
-  for (int i = 0; i < 4; i++) {
-    Expect.equals("Z", x[i]);
-  }
-  for (int i = x.length - 4; i < x.length; i++) {
-    Expect.equals("Z", x[i]);
-  }
-  x = null;
-
-  port.close();
-  print("Parent done");
-}
diff --git a/tests/lib_2/isolate/int_from_environment_default_value_test.dart b/tests/lib_2/isolate/int_from_environment_default_value_test.dart
deleted file mode 100644
index f30c852f5db..00000000000
--- a/tests/lib_2/isolate/int_from_environment_default_value_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:isolate";
-
-import "package:async_helper/async_helper.dart";
-import "package:expect/expect.dart";
-
-void test(port) {
-  Expect.equals(0, const int.fromEnvironment('NOT_FOUND'));
-  Expect.equals(
-      12345, const int.fromEnvironment('NOT_FOUND', defaultValue: 12345));
-  if (port != null) port.send(null);
-}
-
-main() {
-  asyncStart();
-
-  test(null);
-  final port = new ReceivePort();
-  Isolate.spawn(test, port.sendPort);
-  port.forEach((_) {
-    port.close();
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/isolate/isolate_complex_messages_test.dart b/tests/lib_2/isolate/isolate_complex_messages_test.dart
deleted file mode 100644
index e044aaeb957..00000000000
--- a/tests/lib_2/isolate/isolate_complex_messages_test.dart
+++ /dev/null
@@ -1,96 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--no-enable-fast-object-copy
-// VMOptions=--enable-fast-object-copy
-
-// Dart test program for testing isolate communication with
-// complex messages.
-
-library IsolateComplexMessagesTest;
-
-import 'dart:isolate';
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-void main() {
-  asyncStart();
-
-  ReceivePort local = new ReceivePort();
-  Isolate.spawn(logMessages, local.sendPort);
-
-  int messagesReceived = 0;
-  local.listen((msg) {
-    switch (msg[0]) {
-      case "init":
-        messagesReceived++;
-        var remote = msg[1];
-        remote.send(1);
-        remote.send("Hello");
-        remote.send("World");
-        remote.send(const [null, 1, 2, 3, 4]);
-        remote.send(const [1, 2.0, true, false, 0xffffffffff]);
-        remote.send(const ["Hello", "World", 0xffffffffff]);
-        // Shutdown the LogRunner.
-        remote.send(-1);
-        break;
-      case "done":
-        messagesReceived++;
-        local.close();
-        Expect.equals(6, msg[1]);
-        Expect.equals(2, messagesReceived);
-        asyncEnd();
-    }
-  });
-}
-
-void logMessages(mainPort) {
-  int count = 0;
-  ReceivePort port = new ReceivePort();
-  mainPort.send(["init", port.sendPort]);
-  port.forEach((var message) {
-    if (message == -1) {
-      port.close();
-      mainPort.send(["done", count]);
-    } else {
-      switch (count) {
-        case 0:
-          Expect.equals(1, message);
-          break;
-        case 1:
-          Expect.equals("Hello", message);
-          break;
-        case 2:
-          Expect.equals("World", message);
-          break;
-        case 3:
-          Expect.equals(5, message.length);
-          Expect.equals(null, message[0]);
-          Expect.equals(1, message[1]);
-          Expect.equals(2, message[2]);
-          Expect.equals(3, message[3]);
-          Expect.equals(4, message[4]);
-          break;
-        case 4:
-          Expect.equals(5, message.length);
-          Expect.equals(1, message[0]);
-          Expect.equals(2.0, message[1]);
-          Expect.equals(true, message[2]);
-          Expect.equals(false, message[3]);
-          Expect.equals(0xffffffffff, message[4]);
-          break;
-        case 5:
-          Expect.equals(3, message.length);
-          Expect.equals("Hello", message[0]);
-          Expect.equals("World", message[1]);
-          Expect.equals(0xffffffffff, message[2]);
-          break;
-      }
-      count++;
-    }
-  });
-}
diff --git a/tests/lib_2/isolate/isolate_current_test.dart b/tests/lib_2/isolate/isolate_current_test.dart
deleted file mode 100644
index 99b2efe8c25..00000000000
--- a/tests/lib_2/isolate/isolate_current_test.dart
+++ /dev/null
@@ -1,140 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--no-enable-fast-object-copy
-// VMOptions=--enable-fast-object-copy
-
-library isolate_current_test;
-
-import "dart:isolate";
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-void main() {
-  asyncStart();
-
-  Expect.isNotNull(Isolate.current);
-
-  // Sending controlPort and capabilities as list.
-  testSend(i2l, l2i);
-  testSpawnReturnVsCurrent(true);
-  testSpawnReturnVsCurrent2(true);
-
-  // Sending Isolate itself.
-  testSend(id, id);
-  testSpawnReturnVsCurrent(false);
-  testSpawnReturnVsCurrent2(false);
-
-  asyncEnd();
-}
-
-/** Test sending the isolate data or isolate through a [SendPort]. */
-void testSend(i2l, l2i) {
-  asyncStart();
-  RawReceivePort p = new RawReceivePort();
-  Isolate isolate = Isolate.current;
-  p.handler = (list) {
-    var isolate2 = l2i(list);
-    Expect.equals(isolate.controlPort, isolate2.controlPort);
-    Expect.equals(isolate.pauseCapability, isolate2.pauseCapability);
-    Expect.equals(isolate.terminateCapability, isolate2.terminateCapability);
-    p.close();
-    asyncEnd();
-  };
-  p.sendPort.send(i2l(isolate));
-}
-
-/**
- * Test that the isolate returned by [Isolate.spawn] is the same as
- * the one returned by [Isolate.current] in the spawned isolate.
- * Checked in the spawning isolate.
- */
-void testSpawnReturnVsCurrent(bool asList) {
-  asyncStart();
-  Function transform = asList ? l2i : id;
-  Completer response = new Completer();
-  var p = new RawReceivePort();
-  p.handler = (v) {
-    response.complete(transform(v));
-    p.close();
-  };
-
-  Isolate.spawn(replyCurrent, [p.sendPort, asList]).then((Isolate isolate) {
-    return response.future.then((isolate2) {
-      expectIsolateEquals(isolate, isolate2 as Isolate);
-      asyncEnd();
-    });
-  });
-}
-
-void replyCurrent(args) {
-  SendPort responsePort = args[0];
-  Function transform = args[1] ? i2l : id;
-  responsePort.send(transform(Isolate.current));
-}
-
-/**
- * Test that the isolate returned by [Isolate.spawn] is the same as
- * the one returned by [Isolate.current] in the spawned isolate.
- * Checked in the spawned isolate.
- */
-void testSpawnReturnVsCurrent2(bool asList) {
-  asyncStart();
-  Function transform = asList ? i2l : id;
-
-  Completer response = new Completer();
-  var p = new RawReceivePort();
-  int state = 0;
-  p.handler = (v) {
-    switch (state) {
-      case 0:
-        response.complete(v);
-        state++;
-        break;
-      case 1:
-        p.close();
-        Expect.isTrue(v);
-        asyncEnd();
-    }
-  };
-
-  Isolate.spawn(expectCurrent, [p.sendPort, asList]).then((Isolate isolate) {
-    return response.future.then((port) {
-      (port as SendPort).send(transform(isolate));
-    });
-  });
-}
-
-void expectCurrent(args) {
-  SendPort responsePort = args[0];
-  Function transform = args[1] ? l2i : id;
-  RawReceivePort port = new RawReceivePort();
-  port.handler = (isoData) {
-    Isolate isolate2 = transform(isoData);
-    port.close();
-    Isolate isolate = Isolate.current;
-    expectIsolateEquals(isolate, isolate2);
-    responsePort.send(true);
-  };
-  responsePort.send(port.sendPort);
-}
-
-/** Convert isolate to list (of control port and capabilities). */
-i2l(Isolate isolate) =>
-    [isolate.controlPort, isolate.pauseCapability, isolate.terminateCapability];
-/** Convert list to isolate. */
-l2i(List list) => new Isolate(list[0],
-    pauseCapability: list[1], terminateCapability: list[2]);
-
-/** Identity transformation. */
-id(Isolate isolate) => isolate;
-
-void expectIsolateEquals(Isolate expect, Isolate actual) {
-  Expect.equals(expect.controlPort, actual.controlPort);
-  Expect.equals(expect.pauseCapability, actual.pauseCapability);
-  Expect.equals(expect.terminateCapability, actual.terminateCapability);
-}
diff --git a/tests/lib_2/isolate/isolate_import_test.dart b/tests/lib_2/isolate/isolate_import_test.dart
deleted file mode 100644
index 9a2a569350f..00000000000
--- a/tests/lib_2/isolate/isolate_import_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library IsolateImportNegativeTest;
-
-// Omitting the following import is an error:
-/* //# 01: compile-time error
-import 'dart:isolate';
-*/ //# 01: continued
-import 'package:async_helper/async_helper.dart';
-
-void entry(msg) {}
-
-main() {
-  asyncStart();
-  Isolate.spawn(entry, null).whenComplete(asyncEnd);
-}
diff --git a/tests/lib_2/isolate/isolate_run_test.dart b/tests/lib_2/isolate/isolate_run_test.dart
deleted file mode 100644
index cad8d04c85a..00000000000
--- a/tests/lib_2/isolate/isolate_run_test.dart
+++ /dev/null
@@ -1,127 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:isolate';
-import 'dart:async';
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-void main() async {
-  asyncStart();
-  // Sending result back.
-  await testValue();
-  await testAsyncValue();
-  // Sending error from computation back.
-  await testError();
-  await testAsyncError();
-  // Sending uncaught async error back.
-  await testUncaughtError();
-  // Not sending anything back before isolate dies.
-  await testIsolateHangs();
-  await testIsolateKilled();
-  await testIsolateExits();
-  // Failing to start.
-  await testInvalidMessage();
-  asyncEnd();
-}
-
-final StackTrace stack = StackTrace.fromString("Known Stacktrace");
-final ArgumentError error = ArgumentError.value(42, "name");
-
-var variable = 0;
-
-Future<void> testValue() async {
-  var value = await Isolate.run<int>(() {
-    variable = 1; // Changed in other isolate!
-    Expect.equals(1, variable);
-    return 42;
-  });
-  Expect.equals(42, value);
-  Expect.equals(0, variable);
-}
-
-Future<void> testAsyncValue() async {
-  var value = await Isolate.run<int>(() async {
-    variable = 1;
-    return 42;
-  });
-  Expect.equals(42, value);
-  Expect.equals(0, variable);
-}
-
-Future<void> testError() async {
-  var e = await asyncExpectThrows<ArgumentError>(Isolate.run<int>(() {
-    variable = 1;
-    Error.throwWithStackTrace(error, stack);
-  }));
-  Expect.equals(42, e.invalidValue);
-  Expect.equals("name", e.name);
-  Expect.equals(0, variable);
-}
-
-Future<void> testAsyncError() async {
-  var e = await asyncExpectThrows<ArgumentError>(Isolate.run<int>(() async {
-    variable = 1;
-    Error.throwWithStackTrace(error, stack);
-  }));
-  Expect.equals(42, e.invalidValue);
-  Expect.equals("name", e.name);
-  Expect.equals(0, variable);
-}
-
-Future<void> testUncaughtError() async {
-  var e = await asyncExpectThrows<RemoteError>(Isolate.run<int>(() async {
-    variable = 1;
-    unawaited(Future.error(error, stack)); // Uncaught error
-    await Completer().future; // Never completes.
-    return -1;
-  }));
-
-  Expect.type<RemoteError>(e);
-  Expect.equals(error.toString(), e.toString());
-  Expect.equals(0, variable);
-}
-
-Future<void> testIsolateHangs() async {
-  var e = await asyncExpectThrows<RemoteError>(Isolate.run<int>(() async {
-    variable = 1;
-    await Completer<Never>().future; // Never completes.
-    // Isolate should end while hanging here, because its event loop is empty.
-  }));
-  Expect.type<RemoteError>(e);
-  Expect.equals("Computation ended without result", e.toString());
-  Expect.equals(0, variable);
-}
-
-Future<void> testIsolateKilled() async {
-  var e = await asyncExpectThrows<RemoteError>(Isolate.run<int>(() async {
-    variable = 1;
-    Isolate.current.kill(); // Send kill request.
-    await Completer<Never>().future; // Never completes.
-    // Isolate should get killed while hanging here.
-  }));
-  Expect.type<RemoteError>(e);
-  Expect.equals("Computation ended without result", e.toString());
-  Expect.equals(0, variable);
-}
-
-Future<void> testIsolateExits() async {
-  var e = await asyncExpectThrows<RemoteError>(Isolate.run<int>(() async {
-    variable = 1;
-    Isolate.exit(); // Dies here without sending anything back.
-  }));
-  Expect.type<RemoteError>(e);
-  Expect.equals("Computation ended without result", e.toString());
-  Expect.equals(0, variable);
-}
-
-Future<void> testInvalidMessage() async {
-  // Regression test for http://dartbug.com/48516
-  var unsendable = RawReceivePort();
-  await asyncExpectThrows<Error>(Isolate.run<void>(() => unsendable));
-  unsendable.close();
-  // Test should not hang.
-}
diff --git a/tests/lib_2/isolate/issue_21398_child_isolate.dart b/tests/lib_2/isolate/issue_21398_child_isolate.dart
deleted file mode 100644
index 103093296ea..00000000000
--- a/tests/lib_2/isolate/issue_21398_child_isolate.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:isolate';
-import "package:expect/expect.dart";
-
-class FromChildIsolate {
-  String toString() => 'from child isolate';
-}
-
-main(List<String> args, message) {
-  var sendPort = message;
-  try {
-    sendPort.send(new FromChildIsolate());
-  } catch (error) {
-    Expect.isTrue(error is ArgumentError);
-    sendPort.send("Invalid Argument(s).");
-  }
-}
diff --git a/tests/lib_2/isolate/issue_21398_child_isolate1.dart b/tests/lib_2/isolate/issue_21398_child_isolate1.dart
deleted file mode 100644
index 5660cdc2622..00000000000
--- a/tests/lib_2/isolate/issue_21398_child_isolate1.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:isolate';
-import "package:expect/expect.dart";
-
-main(List<String> args, message) {
-  var sendPort1 = message[0] as SendPort;
-  var sendPort2 = message[1] as SendPort;
-  sendPort2.send(sendPort1);
-}
diff --git a/tests/lib_2/isolate/issue_21398_child_isolate11.dart b/tests/lib_2/isolate/issue_21398_child_isolate11.dart
deleted file mode 100644
index 3567be22119..00000000000
--- a/tests/lib_2/isolate/issue_21398_child_isolate11.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:isolate';
-import "package:expect/expect.dart";
-
-class FromChildIsolate {
-  String toString() => 'from child isolate';
-}
-
-main(List<String> args, message) {
-  var receivePort = new ReceivePort();
-  var sendPort = message;
-  sendPort.send(receivePort.sendPort);
-  receivePort.listen((msg) {
-    Expect.isTrue(msg is SendPort);
-    try {
-      msg.send(new FromChildIsolate());
-    } catch (error) {
-      Expect.isTrue(error is ArgumentError);
-      msg.send("Invalid Argument(s).");
-    }
-  }, onError: (e) => print('$e'));
-}
diff --git a/tests/lib_2/isolate/issue_21398_parent_isolate1_test.dart b/tests/lib_2/isolate/issue_21398_parent_isolate1_test.dart
deleted file mode 100644
index 3188cdda436..00000000000
--- a/tests/lib_2/isolate/issue_21398_parent_isolate1_test.dart
+++ /dev/null
@@ -1,149 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:isolate';
-import "package:expect/expect.dart";
-import 'package:async_helper/async_helper.dart';
-
-class FromMainIsolate {
-  String toString() => 'from main isolate';
-  int get fld => 10;
-}
-
-func1Child(args) {
-  var receivePort = new ReceivePort();
-  var sendPort = args[0];
-  sendPort.send(receivePort.sendPort);
-  receivePort.listen((msg) {
-    Expect.isTrue(msg is FromMainIsolate);
-    Expect.equals(10, msg.fld);
-    receivePort.close();
-    sendPort.send("done");
-  }, onError: (e) => print('$e'));
-}
-
-func2Child(args) {
-  var receivePort = new ReceivePort();
-  var sendPort = args[0];
-  sendPort.send(receivePort.sendPort);
-  receivePort.listen((msg) {
-    Expect.isTrue(msg is SendPort);
-    msg.send(new FromMainIsolate());
-    receivePort.close();
-  }, onError: (e) => print('$e'));
-}
-
-spawnFuncTest() {
-  var receive1 = new ReceivePort();
-  var receive2 = new ReceivePort();
-
-  var spawnFunctionIsolate1SendPort;
-  var spawnFunctionIsolate2SendPort;
-
-  // First spawn the first isolate using spawnFunction, this isolate will
-  // create a receivePort and send it's sendPort back and then it will just
-  // sit there listening for a message from the second isolate spawned
-  // using spawnFunction.
-  asyncStart();
-  return Isolate.spawn(func1Child, [receive1.sendPort]).then((isolate) {
-    receive1.listen((msg) {
-      if (msg is SendPort) {
-        spawnFunctionIsolate1SendPort = msg;
-
-        // Now spawn the second isolate using spawnFunction, this isolate
-        // will create a receivePort and send it's sendPort back and then
-        // wait for the third isolate spawned using spawnUri to send it
-        // a sendPort to which it will try and send a non "literal-like"
-        // object.
-        Isolate.spawn(func2Child, [receive2.sendPort]).then((isolate) {
-          receive2.listen((msg) {
-            spawnFunctionIsolate2SendPort = msg;
-            receive2.close();
-
-            // Now spawn an isolate using spawnUri and send these send
-            // ports over to it. This isolate will send one of the
-            // sendports over to the other.
-            Isolate.spawnUri(
-                Uri.parse('issue_21398_child_isolate1.dart'),
-                null,
-                [spawnFunctionIsolate1SendPort, spawnFunctionIsolate2SendPort]);
-          }, onError: (e) => print('$e'));
-        });
-      } else if (msg == "done") {
-        receive1.close();
-        asyncEnd();
-      } else {
-        Expect.fail("Invalid message received: $msg");
-      }
-    }, onError: (e) => print('$e'));
-  });
-}
-
-uriChild(args) {
-  var receivePort = new ReceivePort();
-  var sendPort = args[0];
-  sendPort.send(receivePort.sendPort);
-  receivePort.listen((msg) {
-    Expect.isTrue(msg is String);
-    Expect.equals("Invalid Argument(s).", msg);
-    receivePort.close();
-    sendPort.send("done");
-  }, onError: (e) => print('$e'));
-}
-
-spawnUriTest() {
-  var receive1 = new ReceivePort();
-  var receive2 = new ReceivePort();
-
-  var spawnFunctionIsolateSendPort;
-  var spawnUriIsolateSendPort;
-
-  // First spawn the first isolate using spawnFunction, this isolate will
-  // create a receivePort and send it's sendPort back and then it will just
-  // sit there listening for a message from the second isolate spawned
-  // using spawnFunction.
-  asyncStart();
-  Isolate.spawn(uriChild, [receive1.sendPort]).then((isolate) {
-    receive1.listen((msg) {
-      if (msg is SendPort) {
-        spawnFunctionIsolateSendPort = msg;
-
-        // Now spawn the second isolate using spawnUri, this isolate
-        // will create a receivePort and send it's sendPort back and then
-        // wait for the third isolate spawned using spawnUri to send it
-        // a sendPort to which it will try and send a non "literal-like"
-        // object.
-        Isolate
-            .spawnUri(Uri.parse('issue_21398_child_isolate11.dart'), [],
-                receive2.sendPort)
-            .then((isolate) {
-          receive2.listen((msg) {
-            spawnUriIsolateSendPort = msg;
-            receive2.close();
-
-            // Now spawn an isolate using spawnUri and send these send
-            // ports over to it. This isolate will send one of the
-            // sendports over to the other.
-            Isolate.spawnUri(
-                Uri.parse('issue_21398_child_isolate1.dart'),
-                null,
-                [spawnFunctionIsolateSendPort, spawnUriIsolateSendPort]);
-          }, onError: (e) => print('$e'));
-        });
-      } else if (msg == "done") {
-        receive1.close();
-        asyncEnd();
-      } else {
-        Expect.fail("Invalid message received: $msg");
-      }
-    }, onError: (e) => print('$e'));
-  });
-}
-
-main() {
-  spawnFuncTest();
-  spawnUriTest();
-}
diff --git a/tests/lib_2/isolate/issue_21398_parent_isolate2_test.dart b/tests/lib_2/isolate/issue_21398_parent_isolate2_test.dart
deleted file mode 100644
index 62e802d5065..00000000000
--- a/tests/lib_2/isolate/issue_21398_parent_isolate2_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:isolate';
-import "package:expect/expect.dart";
-import 'package:async_helper/async_helper.dart';
-
-import "deferred_loaded_lib.dart" deferred as lib;
-
-// In this test case we send an object created from a deferred library
-// that is loaded in the child isolate but not the parent isolate. The
-// parent isolate does not know about the type of this object and throws
-// an unhandled exception.
-funcChild(args) {
-  var replyPort = args[0];
-  // Deferred load a library, create an object from that library and send
-  // it over to the parent isolate which has not yet loaded that library.
-  lib.loadLibrary().then((_) {
-    replyPort.send(new lib.FromChildIsolate());
-  });
-}
-
-void helperFunction() {
-  var receivePort = new ReceivePort();
-  asyncStart();
-
-  // Spawn an isolate using spawnFunction.
-  Isolate.spawn(funcChild, [receivePort.sendPort]).then((isolate) {
-    receivePort.listen((msg) {
-      // We don't expect to receive any valid messages.
-      Expect.fail("We don't expect to receive any valid messages");
-      receivePort.close();
-      asyncEnd();
-    }, onError: (e) {
-      // We don't expect to receive any error messages, per spec listen
-      // does not receive an error object.
-      Expect.fail("We don't expect to receive any error messages");
-      receivePort.close();
-      asyncEnd();
-    });
-  });
-}
-
-main() {
-  helperFunction(); //# 01: runtime error
-}
diff --git a/tests/lib_2/isolate/issue_21398_parent_isolate_test.dart b/tests/lib_2/isolate/issue_21398_parent_isolate_test.dart
deleted file mode 100644
index 6772cd0e3a4..00000000000
--- a/tests/lib_2/isolate/issue_21398_parent_isolate_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:isolate';
-import "package:expect/expect.dart";
-import 'package:async_helper/async_helper.dart';
-
-class FromMainIsolate {
-  String toString() => 'from main isolate';
-  int get fld => 10;
-}
-
-funcChild(args) {
-  var reply = args[1];
-  var obj = args[0];
-  Expect.isTrue(obj is FromMainIsolate);
-  Expect.equals(10, obj.fld);
-  reply.send(new FromMainIsolate());
-}
-
-main() {
-  var receive1 = new ReceivePort();
-  var receive2 = new ReceivePort();
-
-  // First spawn an isolate using spawnURI and have it
-  // send back a "non-literal" like object.
-  asyncStart();
-  Isolate.spawnUri(Uri.parse('issue_21398_child_isolate.dart'), [],
-      [new FromMainIsolate(), receive1.sendPort]).catchError((error) {
-    Expect.isTrue(error is ArgumentError);
-    asyncEnd();
-  });
-  asyncStart();
-  Isolate
-      .spawnUri(
-          Uri.parse('issue_21398_child_isolate.dart'), [], receive1.sendPort)
-      .then((isolate) {
-    receive1.listen((msg) {
-      Expect.stringEquals(msg, "Invalid Argument(s).");
-      receive1.close();
-      asyncEnd();
-    }, onError: (e) => print('$e'));
-  });
-
-  // Now spawn an isolate using spawnFunction and send it a "non-literal"
-  // like object and also have the child isolate send back a "non-literal"
-  // like object.
-  asyncStart();
-  Isolate.spawn(funcChild, [new FromMainIsolate(), receive2.sendPort]).then(
-      (isolate) {
-    receive2.listen((msg) {
-      Expect.isTrue(msg is FromMainIsolate);
-      Expect.equals(10, msg.fld);
-      receive2.close();
-      asyncEnd();
-    }, onError: (e) => print('$e'));
-  });
-}
diff --git a/tests/lib_2/isolate/issue_22778_test.dart b/tests/lib_2/isolate/issue_22778_test.dart
deleted file mode 100644
index a21fdf37397..00000000000
--- a/tests/lib_2/isolate/issue_22778_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:isolate";
-import "package:expect/expect.dart";
-
-func() {}
-
-main() {
-  var r = new RawReceivePort();
-  r.handler = (v) {
-    Expect.isTrue(v[0] == v[1]);
-    r.close();
-  };
-  r.sendPort.send(<Function>[func, func]);
-}
diff --git a/tests/lib_2/isolate/issue_24243_child1_isolate.dart b/tests/lib_2/isolate/issue_24243_child1_isolate.dart
deleted file mode 100644
index 436b48d3668..00000000000
--- a/tests/lib_2/isolate/issue_24243_child1_isolate.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:isolate';
-
-main(List<String> args, message) {
-  var sendPort = message;
-  try {
-    var list0 = <int>[1, 2, 3];
-    var list1 = <int>[4, 5, 6];
-    var list2 = <int>[7, 8, 9];
-    var list = new List<List<int>>.from([list0, list1, list2]);
-    sendPort.send(list);
-  } catch (error) {
-    sendPort.send("Invalid Argument(s).");
-  }
-}
diff --git a/tests/lib_2/isolate/issue_24243_child2_isolate.dart b/tests/lib_2/isolate/issue_24243_child2_isolate.dart
deleted file mode 100644
index 48fe2ec80f3..00000000000
--- a/tests/lib_2/isolate/issue_24243_child2_isolate.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:isolate';
-
-main(List<String> args, message) {
-  var sendPort = message;
-  try {
-    var map0 = <int, String>{1: 'one', 2: 'two', 3: 'three'};
-    var map1 = <int, String>{4: 'four', 5: 'five', 6: 'six'};
-    var map2 = <int, String>{7: 'seven', 8: 'eight', 9: 'nine'};
-    var map = new Map<int, Map<int, String>>.from({0: map0, 1: map1, 2: map2});
-    sendPort.send(map);
-  } catch (error) {
-    sendPort.send("Invalid Argument(s).");
-  }
-}
diff --git a/tests/lib_2/isolate/issue_24243_parent_isolate_test.dart b/tests/lib_2/isolate/issue_24243_parent_isolate_test.dart
deleted file mode 100644
index 6cc89045789..00000000000
--- a/tests/lib_2/isolate/issue_24243_parent_isolate_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:collection';
-import 'dart:isolate';
-
-import "package:expect/expect.dart";
-
-main() {
-  // First spawn an isolate using spawnURI and have it
-  // send back a "literal" like list object.
-  var receive1 = new ReceivePort();
-  Isolate
-      .spawnUri(
-          Uri.parse('issue_24243_child1_isolate.dart'), [], receive1.sendPort)
-      .then((isolate) {
-    receive1.listen((msg) {
-      var list0 = <int>[1, 2, 3];
-      var list1 = <int>[4, 5, 6];
-      var list2 = <int>[7, 8, 9];
-      Expect.isTrue(msg is List<List<int>>);
-      Expect.listEquals(msg[0], list0);
-      Expect.listEquals(msg[1], list1);
-      Expect.listEquals(msg[2], list2);
-      Expect.throws(() => msg[0] = "throw an exception");
-      receive1.close();
-    }, onError: (e) => print('$e'));
-  });
-
-  // Now spawn an isolate using spawnURI and have it
-  // send back a "literal" like map object.
-  var receive2 = new ReceivePort();
-  Isolate
-      .spawnUri(
-          Uri.parse('issue_24243_child2_isolate.dart'), [], receive2.sendPort)
-      .then((isolate) {
-    receive2.listen((msg) {
-      var map0 = <int, String>{1: 'one', 2: 'two', 3: 'three'};
-      var map1 = <int, String>{4: 'four', 5: 'five', 6: 'six'};
-      var map2 = <int, String>{7: 'seven', 8: 'eight', 9: 'nine'};
-      Expect.isTrue(msg is Map<int, Map<int, String>>);
-      Expect.mapEquals(msg[0], map0);
-      Expect.mapEquals(msg[1], map1);
-      Expect.mapEquals(msg[2], map2);
-      Expect.throws(() => msg[0] = "throw an exception");
-      receive2.close();
-    }, onError: (e) => print('$e'));
-  });
-}
diff --git a/tests/lib_2/isolate/issue_35626_test.dart b/tests/lib_2/isolate/issue_35626_test.dart
deleted file mode 100644
index 57a6cb315a8..00000000000
--- a/tests/lib_2/isolate/issue_35626_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--no-enable-fast-object-copy
-// VMOptions=--enable-fast-object-copy
-
-// Tests that sets of enums can be set through ports.
-// https://github.com/dart-lang/sdk/issues/35626
-
-library spawn_tests;
-
-import "dart:isolate";
-import "package:expect/expect.dart";
-
-enum MyEnum { foo, bar, baz }
-
-void sendSetOfEnums(SendPort port) {
-  Set<MyEnum> remoteSet = Set()..add(MyEnum.bar);
-  port.send(remoteSet);
-}
-
-void main() async {
-  Set<MyEnum> localSet = Set()..add(MyEnum.foo)..add(MyEnum.bar);
-  localSet.lookup(MyEnum.foo);
-
-  final port = ReceivePort();
-  await Isolate.spawn(sendSetOfEnums, port.sendPort);
-  Set<MyEnum> remoteSet = await port.first;
-
-  print(localSet);
-  print(remoteSet);
-  Expect.setEquals([MyEnum.bar], localSet.intersection(remoteSet));
-  Expect.setEquals([MyEnum.bar], remoteSet.intersection(localSet));
-}
diff --git a/tests/lib_2/isolate/kill2_test.dart b/tests/lib_2/isolate/kill2_test.dart
deleted file mode 100644
index 0ee1d626c4d..00000000000
--- a/tests/lib_2/isolate/kill2_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:isolate";
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-isomain1(replyPort) {
-  RawReceivePort port = new RawReceivePort();
-  port.handler = (v) {
-    replyPort.send(v);
-    if (v == 0) port.close();
-  };
-  replyPort.send(port.sendPort);
-}
-
-void main() {
-  asyncStart();
-  var completer = new Completer(); // Completed by first reply from isolate.
-  RawReceivePort reply = new RawReceivePort(completer.complete);
-  Isolate.spawn(isomain1, reply.sendPort).then((Isolate isolate) {
-    List result = [];
-    completer.future.then((echoPort) {
-      reply.handler = (v) {
-        result.add(v);
-        if (v == 2) {
-          isolate.kill(priority: Isolate.beforeNextEvent);
-        }
-        echoPort.send(v - 1);
-      };
-      RawReceivePort exitSignal;
-      exitSignal = new RawReceivePort((_) {
-        Expect.listEquals([4, 3, 2], result);
-        exitSignal.close();
-        reply.close();
-        asyncEnd();
-      });
-      isolate.addOnExitListener(exitSignal.sendPort);
-      echoPort.send(4);
-    });
-  });
-}
diff --git a/tests/lib_2/isolate/kill_infinite_loop_in_initializer_test.dart b/tests/lib_2/isolate/kill_infinite_loop_in_initializer_test.dart
deleted file mode 100644
index 5b5a92b9157..00000000000
--- a/tests/lib_2/isolate/kill_infinite_loop_in_initializer_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test against out-of-band messages being blocked during lazy
-// static field initialization.
-
-import "dart:isolate";
-import "package:async_helper/async_helper.dart";
-
-dynamic staticFieldWithBadInitializer = badInitializer();
-
-badInitializer() {
-  print("badInitializer");
-  for (;;) {}
-  return 42; // Unreachable.
-}
-
-child(message) {
-  print("child");
-  RawReceivePort port = new RawReceivePort();
-  print(staticFieldWithBadInitializer);
-  port.close(); // Unreachable.
-}
-
-void main() {
-  asyncStart();
-  Isolate.spawn(child, null).then((Isolate isolate) {
-    print("spawned");
-    RawReceivePort exitSignal;
-    exitSignal = new RawReceivePort((_) {
-      print("onExit");
-      exitSignal.close();
-      asyncEnd();
-    });
-    isolate.addOnExitListener(exitSignal.sendPort);
-    isolate.kill(priority: Isolate.immediate);
-  });
-}
diff --git a/tests/lib_2/isolate/kill_self_synchronously_test.dart b/tests/lib_2/isolate/kill_self_synchronously_test.dart
deleted file mode 100644
index 34e8cab2ba3..00000000000
--- a/tests/lib_2/isolate/kill_self_synchronously_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:isolate";
-import "dart:io";
-
-void main(List<String> args) {
-  if (args.contains("--child")) {
-    new RawReceivePort(); // Hang if not killed.
-    Isolate.current.kill(priority: Isolate.immediate);
-    // No intervening call.
-    throw "QQQ Should not be reached";
-  } else {
-    var exec = Platform.resolvedExecutable;
-    var args = <String>[];
-    args.addAll(Platform.executableArguments);
-    args.add(Platform.script.toFilePath());
-    args.add("--child");
-    var result = Process.runSync(exec, args);
-    if (result.exitCode != 255) {
-      throw "Wrong exit code: ${result.exitCode}";
-    }
-    if (result.stderr.contains("QQQ Should not be reached")) {
-      print(result.stderr);
-      throw "Not killed synchronously";
-    }
-    if (!result.stderr.contains("isolate terminated by Isolate.kill")) {
-      print(result.stderr);
-      throw "Missing killed message";
-    }
-  }
-}
diff --git a/tests/lib_2/isolate/kill_self_test.dart b/tests/lib_2/isolate/kill_self_test.dart
deleted file mode 100644
index 8f01f26bd0c..00000000000
--- a/tests/lib_2/isolate/kill_self_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:isolate";
-import "dart:async";
-
-import "package:async_helper/async_helper.dart";
-
-isomain1(replyPort) {
-  RawReceivePort port = new RawReceivePort();
-  bool firstEvent = true;
-  port.handler = (v) {
-    if (!firstEvent) {
-      throw "Survived suicide";
-    }
-    var controlPort = v[0];
-    var killCapability = v[1];
-    firstEvent = false;
-    var isolate = new Isolate(controlPort, terminateCapability: killCapability);
-    isolate.kill(priority: Isolate.immediate);
-  };
-  replyPort.send(port.sendPort);
-}
-
-void main() {
-  asyncStart();
-  var completer = new Completer(); // Completed by first reply from isolate.
-  RawReceivePort reply = new RawReceivePort(completer.complete);
-  Isolate.spawn(isomain1, reply.sendPort).then((Isolate isolate) {
-    completer.future.then((isolatePort) {
-      RawReceivePort exitSignal;
-      exitSignal = new RawReceivePort((_) {
-        exitSignal.close();
-        asyncEnd();
-      });
-      isolate.addOnExitListener(exitSignal.sendPort);
-      isolatePort.send([isolate.controlPort, isolate.terminateCapability]);
-      reply.close();
-    });
-  });
-}
diff --git a/tests/lib_2/isolate/kill_test.dart b/tests/lib_2/isolate/kill_test.dart
deleted file mode 100644
index 4966bba652a..00000000000
--- a/tests/lib_2/isolate/kill_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:isolate";
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-isomain1(replyPort) {
-  RawReceivePort port = new RawReceivePort();
-  port.handler = (v) {
-    replyPort.send(v);
-    if (v == 0) port.close();
-  };
-  replyPort.send(port.sendPort);
-}
-
-void main() {
-  asyncStart();
-  var completer = new Completer(); // Completed by first reply from isolate.
-  RawReceivePort reply = new RawReceivePort(completer.complete);
-  Isolate.spawn(isomain1, reply.sendPort).then((Isolate isolate) {
-    completer.future.then((_echoPort) {
-      SendPort echoPort = _echoPort;
-      List result = [];
-      reply.handler = (v) {
-        result.add(v);
-        if (v == 2) {
-          isolate.kill(priority: Isolate.immediate);
-        }
-        echoPort.send(v - 1);
-      };
-      RawReceivePort exitSignal;
-      exitSignal = new RawReceivePort((_) {
-        Expect.listEquals([4, 3, 2], result);
-        exitSignal.close();
-        reply.close();
-        asyncEnd();
-      });
-      isolate.addOnExitListener(exitSignal.sendPort);
-      echoPort.send(4);
-    });
-  });
-}
diff --git a/tests/lib_2/isolate/large_byte_data_leak_test.dart b/tests/lib_2/isolate/large_byte_data_leak_test.dart
deleted file mode 100644
index fda98f7fa63..00000000000
--- a/tests/lib_2/isolate/large_byte_data_leak_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--no-enable-fast-object-copy
-// VMOptions=--enable-fast-object-copy
-
-import "dart:async";
-import "dart:developer" show UserTag;
-import "dart:isolate" show Isolate, ReceivePort;
-import "dart:typed_data" show ByteData;
-import "package:expect/expect.dart";
-
-const large = 2 * 1024 * 1024;
-
-void child(replyPort) {
-  print("Child start");
-
-  Expect.throws(() {
-    replyPort.send([
-      new ByteData(large),
-      new UserTag("User tags are not allowed in isolate messages"),
-      new ByteData(large),
-    ]);
-    replyPort.send("Not reached");
-  }, (e) {
-    return e.toString().contains("Illegal argument in isolate message");
-  });
-
-  replyPort.send("Done");
-
-  print("Child done");
-}
-
-Future<void> main(List<String> args) async {
-  print("Parent start");
-
-  ReceivePort port = new ReceivePort();
-  Isolate.spawn(child, port.sendPort);
-
-  Expect.equals("Done", await port.first);
-
-  print("Parent done");
-}
diff --git a/tests/lib_2/isolate/large_byte_data_test.dart b/tests/lib_2/isolate/large_byte_data_test.dart
deleted file mode 100644
index be1ce004f89..00000000000
--- a/tests/lib_2/isolate/large_byte_data_test.dart
+++ /dev/null
@@ -1,173 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "dart:isolate";
-import "dart:typed_data";
-import "package:expect/expect.dart";
-
-const large = 2 * 1024 * 1024;
-
-void child(replyPort) {
-  print("Child start");
-
-  print("Child ByteData");
-  dynamic x = new ByteData(large);
-  for (int i = 0; i < 4; i++) {
-    x.setInt8(i, i);
-  }
-  replyPort.send(x);
-
-  print("Child Uint8List");
-  x = new Uint8List(large);
-  for (int i = 0; i < 4; i++) {
-    x[i] = i;
-  }
-  replyPort.send(x);
-
-  print("Child Int8List");
-  x = new Int8List(large);
-  for (int i = 0; i < 4; i++) {
-    x[i] = i;
-  }
-  replyPort.send(x);
-
-  print("Child Uint16List");
-  x = new Uint16List(large);
-  for (int i = 0; i < 4; i++) {
-    x[i] = i;
-  }
-  replyPort.send(x);
-
-  print("Child Int16List");
-  x = new Int16List(large);
-  for (int i = 0; i < 4; i++) {
-    x[i] = i;
-  }
-  replyPort.send(x);
-
-  print("Child Uint32List");
-  x = new Uint32List(large);
-  for (int i = 0; i < 4; i++) {
-    x[i] = i;
-  }
-  replyPort.send(x);
-
-  print("Child Int32List");
-  x = new Int32List(large);
-  for (int i = 0; i < 4; i++) {
-    x[i] = i;
-  }
-  replyPort.send(x);
-
-  print("Child Uint64List");
-  x = new Uint64List(large);
-  for (int i = 0; i < 4; i++) {
-    x[i] = i;
-  }
-  replyPort.send(x);
-
-  print("Child Int64List");
-  x = new Int64List(large);
-  for (int i = 0; i < 4; i++) {
-    x[i] = i;
-  }
-  replyPort.send(x);
-
-  print("Child done");
-}
-
-Future<void> main(List<String> args) async {
-  print("Parent start");
-
-  ReceivePort port = new ReceivePort();
-  Isolate.spawn(child, port.sendPort);
-  StreamIterator<dynamic> incoming = new StreamIterator<dynamic>(port);
-
-  print("Parent ByteData");
-  Expect.isTrue(await incoming.moveNext());
-  dynamic x = incoming.current;
-  Expect.isTrue(x is ByteData);
-  Expect.equals(large, x.lengthInBytes);
-  for (int i = 0; i < 4; i++) {
-    Expect.equals(i, x.getUint8(i));
-  }
-
-  print("Parent Uint8");
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Uint8List);
-  Expect.equals(large, x.length);
-  for (int i = 0; i < 4; i++) {
-    Expect.equals(i, x[i]);
-  }
-
-  print("Parent Int8");
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Int8List);
-  Expect.equals(large, x.length);
-  for (int i = 0; i < 4; i++) {
-    Expect.equals(i, x[i]);
-  }
-
-  print("Parent Uint16");
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Uint16List);
-  Expect.equals(large, x.length);
-  for (int i = 0; i < 4; i++) {
-    Expect.equals(i, x[i]);
-  }
-
-  print("Parent Int16");
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Int16List);
-  Expect.equals(large, x.length);
-  for (int i = 0; i < 4; i++) {
-    Expect.equals(i, x[i]);
-  }
-
-  print("Parent Uint32");
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Uint32List);
-  Expect.equals(large, x.length);
-  for (int i = 0; i < 4; i++) {
-    Expect.equals(i, x[i]);
-  }
-
-  print("Parent Int32");
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Int32List);
-  Expect.equals(large, x.length);
-  for (int i = 0; i < 4; i++) {
-    Expect.equals(i, x[i]);
-  }
-
-  print("Parent Uint64");
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Uint64List);
-  Expect.equals(large, x.length);
-  for (int i = 0; i < 4; i++) {
-    Expect.equals(i, x[i]);
-  }
-
-  print("Parent Int64");
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Int64List);
-  Expect.equals(large, x.length);
-  for (int i = 0; i < 4; i++) {
-    Expect.equals(i, x[i]);
-  }
-
-  port.close();
-  print("Parent done");
-}
diff --git a/tests/lib_2/isolate/mandel_isolate_test.dart b/tests/lib_2/isolate/mandel_isolate_test.dart
deleted file mode 100644
index 9c174859d12..00000000000
--- a/tests/lib_2/isolate/mandel_isolate_test.dart
+++ /dev/null
@@ -1,158 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library MandelIsolateTest;
-
-import 'dart:async';
-import 'dart:isolate';
-import 'dart:math';
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-const TERMINATION_MESSAGE = -1;
-const N = 100;
-const ISOLATES = 20;
-
-void main([args, port]) {
-  final state = new MandelbrotState();
-  asyncStart();
-  state._validated.future.then((result) {
-    Expect.isTrue(result);
-    asyncEnd();
-  });
-  for (int i = 0; i < min(ISOLATES, N); i++) state.startClient(i);
-}
-
-class MandelbrotState {
-  MandelbrotState() {
-    _result = new List<List<int>>.filled(N, null);
-    _lineProcessedBy = new List<LineProcessorClient>.filled(N, null);
-    _sent = 0;
-    _missing = N;
-    _validated = new Completer<bool>();
-  }
-
-  void startClient(int id) {
-    assert(_sent < N);
-    int line = _sent++;
-    LineProcessorClient.create(this, id).then((final client) {
-      client.processLine(line);
-    });
-  }
-
-  void notifyProcessedLine(LineProcessorClient client, int y, List<int> line) {
-    assert(_result[y] == null);
-    _result[y] = line;
-    _lineProcessedBy[y] = client;
-
-    if (_sent != N) {
-      client.processLine(_sent++);
-    } else {
-      client.shutdown();
-    }
-
-    // If all lines have been computed, validate the result.
-    if (--_missing == 0) {
-      _printResult();
-      _validateResult();
-    }
-  }
-
-  void _validateResult() {
-    // TODO(ngeoffray): Implement this.
-    _validated.complete(true);
-  }
-
-  void _printResult() {
-    var output = new StringBuffer();
-    for (int i = 0; i < _result.length; i++) {
-      List<int> line = _result[i];
-      for (int j = 0; j < line.length; j++) {
-        if (line[j] < 10) output.write("0");
-        output.write(line[j]);
-      }
-      output.write("\n");
-    }
-    // print(output);
-  }
-
-  List<List<int>> _result;
-  List<LineProcessorClient> _lineProcessedBy;
-  int _sent;
-  int _missing;
-  Completer<bool> _validated;
-}
-
-class LineProcessorClient {
-  MandelbrotState _state;
-  int _id;
-  SendPort _port;
-
-  LineProcessorClient(this._state, this._id, this._port);
-
-  static Future<LineProcessorClient> create(MandelbrotState state, int id) {
-    ReceivePort reply = new ReceivePort();
-    return Isolate.spawn(processLines, reply.sendPort).then((_) {
-      return reply.first.then((port) {
-        return new LineProcessorClient(state, id, port);
-      });
-    });
-  }
-
-  void processLine(int y) {
-    ReceivePort reply = new ReceivePort();
-    _port.send([y, reply.sendPort]);
-    reply.first.then((message) {
-      _state.notifyProcessedLine(this, y, message as List<int>);
-    });
-  }
-
-  void shutdown() {
-    _port.send(TERMINATION_MESSAGE);
-  }
-}
-
-List<int> processLine(int y) {
-  double inverseN = 2.0 / N;
-  double Civ = y * inverseN - 1.0;
-  List<int> result = new List<int>.filled(N, null);
-  for (int x = 0; x < N; x++) {
-    double Crv = x * inverseN - 1.5;
-
-    double Zrv = Crv;
-    double Ziv = Civ;
-
-    double Trv = Crv * Crv;
-    double Tiv = Civ * Civ;
-
-    int i = 49;
-    do {
-      Ziv = (Zrv * Ziv) + (Zrv * Ziv) + Civ;
-      Zrv = Trv - Tiv + Crv;
-
-      Trv = Zrv * Zrv;
-      Tiv = Ziv * Ziv;
-    } while (((Trv + Tiv) <= 4.0) && (--i > 0));
-
-    result[x] = i;
-  }
-  return result;
-}
-
-void processLines(SendPort replyPort) {
-  ReceivePort port = new ReceivePort();
-  port.listen((message) {
-    if (message != TERMINATION_MESSAGE) {
-      int line = message[0];
-      SendPort replyTo = message[1];
-      replyTo.send(processLine(line));
-    } else {
-      port.close();
-    }
-  });
-  replyPort.send(port.sendPort);
-}
diff --git a/tests/lib_2/isolate/message2_test.dart b/tests/lib_2/isolate/message2_test.dart
deleted file mode 100644
index 76ac0274f91..00000000000
--- a/tests/lib_2/isolate/message2_test.dart
+++ /dev/null
@@ -1,89 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--no-enable-fast-object-copy
-// VMOptions=--enable-fast-object-copy
-
-// Dart test program for testing serialization of messages.
-// VMOptions=--enable_type_checks --enable_asserts
-
-library Message2Test;
-
-import 'dart:isolate';
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-// ---------------------------------------------------------------------------
-// Message passing test 2.
-// ---------------------------------------------------------------------------
-
-class MessageTest {
-  static void mapEqualsDeep(Map expected, Map actual) {
-    Expect.equals(actual.length, expected.length);
-    testForEachMap(key, value) {
-      if (value is List) {
-        listEqualsDeep(value, actual[key]);
-      } else {
-        Expect.equals(actual[key], value);
-      }
-    }
-
-    expected.forEach(testForEachMap);
-  }
-
-  static void listEqualsDeep(List expected, List actual) {
-    for (int i = 0; i < expected.length; i++) {
-      if (expected[i] is List) {
-        Expect.type<List>(actual[i]);
-        listEqualsDeep(expected[i], actual[i]);
-      } else if (expected[i] is Map) {
-        Expect.type<Map>(actual[i]);
-        mapEqualsDeep(expected[i], actual[i]);
-      } else {
-        Expect.equals(actual[i], expected[i]);
-      }
-    }
-  }
-}
-
-void pingPong(replyPort) {
-  ReceivePort port = new ReceivePort();
-  port.listen((message) {
-    if (message is SendPort) {
-      message.send('done');
-      port.close();
-    } else {
-      // Bounce the received object back so that the sender
-      // can make sure that the object matches.
-      message[1].send(message[0]);
-    }
-  });
-  replyPort.send(port.sendPort);
-}
-
-void main([args, port]) {
-  ReceivePort port = new ReceivePort();
-  Isolate.spawn(pingPong, port.sendPort);
-  asyncStart();
-  port.first.then((remote) {
-    Map m = new Map();
-    m[1] = "eins";
-    m[2] = "deux";
-    m[3] = "tre";
-    m[4] = "four";
-    ReceivePort replyPort = new ReceivePort();
-    remote.send([m, replyPort.sendPort]);
-    replyPort.listen((var received) {
-      if (received == 'done') {
-        replyPort.close();
-        asyncEnd();
-      } else {
-        MessageTest.mapEqualsDeep(m, received);
-        remote.send(replyPort.sendPort);
-      }
-    });
-  });
-}
diff --git a/tests/lib_2/isolate/message3_test.dart b/tests/lib_2/isolate/message3_test.dart
deleted file mode 100644
index 90c54460fe1..00000000000
--- a/tests/lib_2/isolate/message3_test.dart
+++ /dev/null
@@ -1,514 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--no-enable-fast-object-copy
-// VMOptions=--enable-fast-object-copy
-
-// Dart test program for testing serialization of messages.
-// VMOptions=--enable_type_checks --enable_asserts
-
-library MessageTest;
-
-import 'dart:async';
-import 'dart:collection';
-import 'dart:io';
-import 'dart:isolate';
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-import 'dart:typed_data';
-
-void echoMain(msg) {
-  SendPort replyTo = msg[0];
-  SendPort pong = msg[1];
-  ReceivePort port = new ReceivePort();
-  replyTo.send(port.sendPort);
-  port.listen((msg) {
-    if (msg == "halt") {
-      port.close();
-    } else {
-      pong.send(msg);
-    }
-  });
-}
-
-class A {
-  var field = 499;
-
-  A();
-  A.named(this.field);
-}
-
-class B extends A {
-  final field2;
-  B() : field2 = 99;
-  B.named(this.field2, x) : super.named(x);
-}
-
-class C extends B {
-  var field = 33;
-
-  get superField => super.field;
-  get superField2 => super.field2;
-}
-
-class M {
-  get field2 => 11;
-}
-
-class D extends C with M {
-  var gee = 123;
-}
-
-class E {
-  // Make sure E.fun is not removed by the tree shaker, as this test verifies
-  // that an object with a tear-off in E.fun cannot be sent.
-  @pragma("vm:entry-point")
-  Function fun;
-
-  E(this.fun);
-
-  static fooFun() => 499;
-  instanceFun() => 1234;
-}
-
-barFun() => 42;
-
-class F {
-  final field = "field";
-  const F();
-}
-
-class G {
-  final field;
-  const G(this.field);
-}
-
-class Value {
-  final val;
-  Value(this.val);
-
-  operator ==(other) {
-    if (other is! Value) return false;
-    return other.val == val;
-  }
-
-  get hashCode => val;
-}
-
-void runTests(SendPort ping, Queue checks) {
-  ping.send("abc");
-  checks.add((x) => Expect.equals("abc", x));
-
-  ping.send([1, 2]);
-  checks.add((x) {
-    Expect.isTrue(x is List);
-    Expect.listEquals([1, 2], x);
-    // Make sure the list is mutable.
-    x[0] = 0;
-    Expect.equals(0, x[0]);
-    // List must be extendable.
-    x.add(3);
-    Expect.equals(3, x[2]);
-  });
-
-  List fixed = new List.filled(2, null);
-  fixed[0] = 0;
-  fixed[1] = 1;
-  ping.send(fixed);
-  checks.add((x) {
-    Expect.isTrue(x is List);
-    Expect.listEquals([0, 1], x);
-    // List must be mutable.
-    x[0] = 3;
-    Expect.equals(3, x[0]);
-    // List must be fixed length.
-    Expect.throws(() {
-      x.add(5);
-    });
-  });
-
-  List cyclic = [];
-  cyclic.add(cyclic);
-  ping.send(cyclic);
-  checks.add((x) {
-    Expect.isTrue(x is List);
-    Expect.equals(1, x.length);
-    Expect.identical(x, x[0]);
-    // List must be mutable.
-    x[0] = 55;
-    Expect.equals(55, x[0]);
-    // List must be extendable.
-    x.add(42);
-    Expect.equals(42, x[1]);
-  });
-
-  List cyclic2 = new List.filled(1, null);
-  cyclic2[0] = cyclic2;
-  ping.send(cyclic2);
-  checks.add((x) {
-    Expect.isTrue(x is List);
-    Expect.equals(1, x.length);
-    Expect.identical(x, x[0]);
-    // List must be mutable.
-    x[0] = 55;
-    Expect.equals(55, x[0]);
-    // List must be fixed.
-    Expect.throws(() => x.add(42));
-  });
-
-  List constList = const [1, 2];
-  ping.send(constList);
-  checks.add((x) {
-    Expect.isTrue(x is List);
-    Expect.listEquals([1, 2], x);
-    // Make sure the list is immutable.
-    Expect.throws(() => x[0] = 0); // //# constList: ok
-    // List must not be extendable.
-    Expect.throws(() => x.add(3));
-    Expect.identical(x, constList); // //# constList_identical: ok
-  });
-
-  Uint8List uint8 = new Uint8List(2);
-  uint8[0] = 0;
-  uint8[1] = 1;
-  ping.send(uint8);
-  checks.add((x) {
-    Expect.isTrue(x is Uint8List);
-    Expect.equals(2, x.length);
-    Expect.equals(0, x[0]);
-    Expect.equals(1, x[1]);
-  });
-
-  Uint16List uint16 = new Uint16List(2);
-  uint16[0] = 0;
-  uint16[1] = 1;
-  ByteBuffer byteBuffer = uint16.buffer;
-  ping.send(byteBuffer); // //# byteBuffer: ok
-  checks.add( //            //# byteBuffer: ok
-  (x) {
-    Expect.isTrue(x is ByteBuffer);
-    Uint16List uint16View = new Uint16List.view(x);
-    Expect.equals(2, uint16View.length);
-    Expect.equals(0, uint16View[0]);
-    Expect.equals(1, uint16View[1]);
-  }
-  ) //                      //# byteBuffer: ok
-      ;
-
-  Int32x4List list32x4 = new Int32x4List(2);
-  list32x4[0] = new Int32x4(1, 2, 3, 4);
-  list32x4[1] = new Int32x4(5, 6, 7, 8);
-  ping.send(list32x4);
-  checks.add(
-  (x) {
-    Expect.isTrue(x is Int32x4List);
-    Expect.equals(2, x.length);
-    Int32x4 entry1 = x[0];
-    Int32x4 entry2 = x[1];
-    Expect.equals(1, entry1.x);
-    Expect.equals(2, entry1.y);
-    Expect.equals(3, entry1.z);
-    Expect.equals(4, entry1.w);
-    Expect.equals(5, entry2.x);
-    Expect.equals(6, entry2.y);
-    Expect.equals(7, entry2.z);
-    Expect.equals(8, entry2.w);
-  });
-
-  Float32x4List flist32x4 = new Float32x4List(2);
-  flist32x4[0] = new Float32x4(1.5, 2.5, 3.5, 4.5);
-  flist32x4[1] = new Float32x4(5.5, 6.5, 7.5, 8.5);
-  ping.send(flist32x4);
-  checks.add(
-  (x) {
-    Expect.isTrue(x is Float32x4List);
-    Expect.equals(2, x.length);
-    Float32x4 entry1 = x[0];
-    Float32x4 entry2 = x[1];
-    Expect.equals(1.5, entry1.x);
-    Expect.equals(2.5, entry1.y);
-    Expect.equals(3.5, entry1.z);
-    Expect.equals(4.5, entry1.w);
-    Expect.equals(5.5, entry2.x);
-    Expect.equals(6.5, entry2.y);
-    Expect.equals(7.5, entry2.z);
-    Expect.equals(8.5, entry2.w);
-  });
-
-  Float64x2List flist64x2 = new Float64x2List(2);
-  flist64x2[0] = new Float64x2(1.5, 2.5);
-  flist64x2[1] = new Float64x2(5.5, 6.5);
-  ping.send(flist64x2);
-  checks.add(
-  (x) {
-    Expect.isTrue(x is Float64x2List);
-    Expect.equals(2, x.length);
-    Float64x2 entry1 = x[0];
-    Float64x2 entry2 = x[1];
-    Expect.equals(1.5, entry1.x);
-    Expect.equals(2.5, entry1.y);
-    Expect.equals(5.5, entry2.x);
-    Expect.equals(6.5, entry2.y);
-  });
-
-  ping.send({"foo": 499, "bar": 32});
-  checks.add((x) {
-    Expect.isTrue(x is LinkedHashMap);
-    Expect.listEquals(["foo", "bar"], x.keys.toList());
-    Expect.listEquals([499, 32], x.values.toList());
-    Expect.equals(499, x["foo"]);
-    Expect.equals(32, x["bar"]);
-    // Must be mutable.
-    x["foo"] = 22;
-    Expect.equals(22, x["foo"]);
-    // Must be extendable.
-    x["gee"] = 499;
-    Expect.equals(499, x["gee"]);
-  });
-
-  Map<String, int> mapWithRemovedKey = {"foo": 499, "bar": 32};
-  mapWithRemovedKey.remove("foo");
-  ping.send(mapWithRemovedKey);
-  checks.add((x) {
-    Expect.isTrue(x is LinkedHashMap);
-    Expect.listEquals(["bar"], x.keys.toList());
-    Expect.listEquals([32], x.values.toList());
-    Expect.equals(32, x["bar"]);
-  });
-
-  // Test map where a key does not define ==/hashCode.
-  Map<A, int> mapWithIdentityKey = new Map<A, int>();
-  mapWithIdentityKey[new A()] = 499;
-  ping.send(mapWithIdentityKey);
-  checks.add((x) {
-    Expect.isTrue(x is LinkedHashMap);
-    int value = x.values.first;
-    Expect.equals(499, value);
-    A key = x.keys.first;
-    Expect.equals(499, x[key]);
-  });
-
-  ping.send({0: 499, 1: 32});
-  checks.add((x) {
-    Expect.isTrue(x is LinkedHashMap);
-    Expect.listEquals([0, 1], x.keys.toList());
-    Expect.listEquals([499, 32], x.values.toList());
-    // Must be mutable.
-    x[0] = 22;
-    Expect.equals(22, x[0]);
-    // Must be extendable.
-    x[123] = 499;
-    Expect.equals(499, x[123]);
-  });
-
-  Map cyclicMap = {};
-  cyclicMap["cycle"] = cyclicMap;
-  ping.send(cyclicMap);
-  checks.add((x) {
-    Expect.isTrue(x is LinkedHashMap);
-    Expect.identical(x, x["cycle"]);
-    // Must be mutable.
-    x["cycle"] = 22;
-    Expect.equals(22, x["cycle"]);
-    // Must be extendable.
-    x["gee"] = 499;
-    Expect.equals(499, x["gee"]);
-  });
-
-  Map constMap = const {'foo': 499};
-  ping.send(constMap);
-  checks.add((x) {
-    Expect.isTrue(x is Map);
-    print(x.length);
-    Expect.equals(1, x.length);
-    Expect.equals(499, x['foo']);
-    Expect.identical(constMap, x); // //# constMap: ok
-    Expect.throws(() => constMap['bar'] = 42);
-  });
-
-  ping.send(new A());
-  checks.add((x) {
-    Expect.isTrue(x is A);
-    Expect.equals(499, x.field);
-  });
-
-  ping.send(new A.named(42));
-  checks.add((x) {
-    Expect.isTrue(x is A);
-    Expect.equals(42, x.field);
-  });
-
-  ping.send(new B());
-  checks.add((x) {
-    Expect.isTrue(x is A);
-    Expect.isTrue(x is B);
-    Expect.equals(499, x.field);
-    Expect.equals(99, x.field2);
-    Expect.throws(() => x.field2 = 22);
-  });
-
-  ping.send(new B.named(1, 2));
-  checks.add((x) {
-    Expect.isTrue(x is A);
-    Expect.isTrue(x is B);
-    Expect.equals(2, x.field);
-    Expect.equals(1, x.field2);
-    Expect.throws(() => x.field2 = 22);
-  });
-
-  ping.send(new C());
-  checks.add((x) {
-    Expect.isTrue(x is A);
-    Expect.isTrue(x is B);
-    Expect.isTrue(x is C);
-    Expect.equals(33, x.field);
-    Expect.equals(99, x.field2);
-    Expect.equals(499, x.superField);
-    Expect.throws(() => x.field2 = 22);
-  });
-
-  ping.send(new D());
-  checks.add((x) {
-    Expect.isTrue(x is A);
-    Expect.isTrue(x is B);
-    Expect.isTrue(x is C);
-    Expect.isTrue(x is D);
-    Expect.isTrue(x is M);
-    Expect.equals(33, x.field);
-    Expect.equals(11, x.field2);
-    Expect.equals(499, x.superField);
-    Expect.equals(99, x.superField2);
-    Expect.throws(() => x.field2 = 22);
-  });
-
-  D cyclicD = new D();
-  ping.send(cyclicD);
-  checks.add((x) {
-    Expect.isTrue(x is A);
-    Expect.isTrue(x is B);
-    Expect.isTrue(x is C);
-    Expect.isTrue(x is D);
-    Expect.isTrue(x is M);
-    Expect.equals(11, x.field2);
-    Expect.equals(499, x.superField);
-    Expect.equals(99, x.superField2);
-    Expect.throws(() => x.field2 = 22);
-  });
-
-  ping.send(new E(E.fooFun)); //       //# fun: ok
-  checks.add((x) { //                  //# fun: continued
-    Expect.equals(E.fooFun, x.fun); // //# fun: continued
-    Expect.equals(499, x.fun()); //    //# fun: continued
-  }); //                               //# fun: continued
-
-  ping.send(new E(barFun)); //         //# fun: continued
-  checks.add((x) { //                  //# fun: continued
-    Expect.equals(barFun, x.fun); //   //# fun: continued
-    Expect.equals(42, x.fun()); //     //# fun: continued
-  }); //                               //# fun: continued
-
-  ping.send(new E(new E(null).instanceFun));
-  checks.add((x) {
-    Expect.equals(1234, (x as E).fun());
-  });
-
-  F nonConstF = new F();
-  ping.send(nonConstF);
-  checks.add((x) {
-    Expect.equals("field", x.field);
-    Expect.isFalse(identical(nonConstF, x));
-  });
-
-  const F constF = const F();
-  ping.send(constF);
-  checks.add((x) {
-    Expect.equals("field", x.field);
-    Expect.identical(constF, x); // //# constInstance: ok
-  });
-
-  G g1 = new G(nonConstF);
-  G g2 = new G(constF);
-  G g3 = const G(constF);
-  ping.send(g1);
-  ping.send(g2);
-  ping.send(g3);
-
-  checks.add((x) {
-    // g1.
-    Expect.isTrue(x is G);
-    Expect.isFalse(identical(g1, x));
-    F f = x.field;
-    Expect.equals("field", f.field);
-    Expect.isFalse(identical(nonConstF, f));
-  });
-  checks.add((x) {
-    // g2.
-    Expect.isTrue(x is G);
-    Expect.isFalse(identical(g1, x));
-    F f = x.field;
-    Expect.equals("field", f.field);
-    Expect.identical(constF, f); // //# constInstance: continued
-  });
-  checks.add((x) {
-    // g3.
-    Expect.isTrue(x is G);
-    Expect.identical(g3, x); // //# constInstance: continued
-    F f = x.field;
-    Expect.equals("field", f.field);
-    Expect.identical(constF, f); // //# constInstance: continued
-  });
-
-  // Make sure objects in a map are serialized and deserialized in the correct
-  // order.
-  Map m = new Map();
-  Value val1 = new Value(1);
-  Value val2 = new Value(2);
-  m[val1] = val2;
-  m[val2] = val1;
-  // Possible bug we want to catch:
-  // serializer runs through keys first, and then the values:
-  //    - id1 = val1, id2 = val2, ref[id2], ref[id1]
-  // deserializer runs through the keys and values in order:
-  //    - val1;  // id1.
-  //    - ref[id2];  // boom. Wasn't deserialized yet.
-  ping.send(m);
-  checks.add((x) {
-    Expect.isTrue(x is Map);
-    Expect.equals(2, x.length);
-    Expect.equals(val2, x[val1]);
-    Expect.equals(val1, x[val2]);
-    Expect.identical(x.keys.elementAt(0), x.values.elementAt(1));
-    Expect.identical(x.keys.elementAt(1), x.values.elementAt(0));
-  });
-}
-
-void main() {
-  asyncStart();
-  Queue checks = new Queue();
-  ReceivePort testPort = new ReceivePort();
-  Completer completer = new Completer();
-
-  testPort.listen((msg) {
-    Function check = checks.removeFirst();
-    check(msg);
-    if (checks.isEmpty) {
-      completer.complete();
-      testPort.close();
-    }
-  });
-
-  ReceivePort initialReplyPort = new ReceivePort();
-  Isolate
-      .spawn(echoMain, [initialReplyPort.sendPort, testPort.sendPort])
-      .then((_) => initialReplyPort.first)
-      .then((_ping) {
-        SendPort ping = _ping;
-        runTests(ping, checks);
-        Expect.isTrue(checks.length > 0);
-        completer.future.then((_) => ping.send("halt")).then((_) => asyncEnd());
-      });
-}
diff --git a/tests/lib_2/isolate/message4_test.dart b/tests/lib_2/isolate/message4_test.dart
deleted file mode 100644
index 425ebb61ba2..00000000000
--- a/tests/lib_2/isolate/message4_test.dart
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test program for testing serialization of messages with static
-// native functions.
-
-library MessageTest;
-
-import 'dart:async';
-import 'dart:collection';
-import 'dart:isolate';
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-void echoMain(msg) {
-  SendPort replyTo = msg[0];
-  SendPort pong = msg[1];
-  ReceivePort port = new ReceivePort();
-  replyTo.send(port.sendPort);
-  port.listen((msg) {
-    if (msg == "halt") {
-      port.close();
-    } else {
-      pong.send(msg);
-    }
-  });
-}
-
-void runTests(SendPort ping, Queue checks) {
-  ping.send("abc");
-  checks.add((x) => Expect.equals("abc", x));
-
-  ping.send(int.parse);
-  checks.add((x) => Expect.identical(int.parse, x));
-
-  ping.send(identityHashCode);
-  checks.add((x) => Expect.identical(identityHashCode, x));
-
-  ping.send(identical);
-  checks.add((x) => Expect.identical(identical, x));
-}
-
-main() async {
-  asyncStart();
-  Queue checks = new Queue();
-  ReceivePort testPort = new ReceivePort();
-  Completer completer = new Completer();
-
-  testPort.listen((msg) {
-    Function check = checks.removeFirst();
-    check(msg);
-    if (checks.isEmpty) {
-      completer.complete();
-      testPort.close();
-    }
-  });
-
-  ReceivePort initialReplyPort = new ReceivePort();
-
-  Isolate i = await Isolate
-      .spawn(echoMain, [initialReplyPort.sendPort, testPort.sendPort]);
-  SendPort ping = await initialReplyPort.first;
-  runTests(ping, checks);
-  Expect.isTrue(checks.length > 0);
-  await completer.future;
-  ping.send("halt");
-  asyncEnd();
-}
diff --git a/tests/lib_2/isolate/message_const_type_arguments_1_test.dart b/tests/lib_2/isolate/message_const_type_arguments_1_test.dart
deleted file mode 100644
index c189ecf48d3..00000000000
--- a/tests/lib_2/isolate/message_const_type_arguments_1_test.dart
+++ /dev/null
@@ -1,409 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// https://github.com/dart-lang/sdk/issues/35778
-
-import "dart:async";
-import "dart:isolate";
-
-import "package:expect/expect.dart";
-
-void child(replyPort) {
-  print("Child start");
-
-  replyPort.send(const <List>[]);
-  replyPort.send(const <Map>[]);
-  replyPort.send(const <Null>[]);
-  replyPort.send(const <Object>[]);
-  replyPort.send(const <String>[]);
-  replyPort.send(const <bool>[]);
-  replyPort.send(const <double>[]);
-  replyPort.send(const <int>[]);
-  replyPort.send(const <num>[]);
-
-  replyPort.send(const <List, List>{});
-  replyPort.send(const <List, Map>{});
-  replyPort.send(const <List, Null>{});
-  replyPort.send(const <List, Object>{});
-  replyPort.send(const <List, String>{});
-  replyPort.send(const <List, bool>{});
-  replyPort.send(const <List, double>{});
-  replyPort.send(const <List, int>{});
-  replyPort.send(const <List, num>{});
-
-  replyPort.send(const <Map, List>{});
-  replyPort.send(const <Map, Map>{});
-  replyPort.send(const <Map, Null>{});
-  replyPort.send(const <Map, Object>{});
-  replyPort.send(const <Map, String>{});
-  replyPort.send(const <Map, bool>{});
-  replyPort.send(const <Map, double>{});
-  replyPort.send(const <Map, int>{});
-  replyPort.send(const <Map, num>{});
-
-  replyPort.send(const <Null, List>{});
-  replyPort.send(const <Null, Map>{});
-  replyPort.send(const <Null, Null>{});
-  replyPort.send(const <Null, Object>{});
-  replyPort.send(const <Null, String>{});
-  replyPort.send(const <Null, bool>{});
-  replyPort.send(const <Null, double>{});
-  replyPort.send(const <Null, int>{});
-  replyPort.send(const <Null, num>{});
-
-  replyPort.send(const <Object, List>{});
-  replyPort.send(const <Object, Map>{});
-  replyPort.send(const <Object, Null>{});
-  replyPort.send(const <Object, Object>{});
-  replyPort.send(const <Object, String>{});
-  replyPort.send(const <Object, bool>{});
-  replyPort.send(const <Object, double>{});
-  replyPort.send(const <Object, int>{});
-  replyPort.send(const <Object, num>{});
-
-  replyPort.send(const <String, List>{});
-  replyPort.send(const <String, Map>{});
-  replyPort.send(const <String, Null>{});
-  replyPort.send(const <String, Object>{});
-  replyPort.send(const <String, String>{});
-  replyPort.send(const <String, bool>{});
-  replyPort.send(const <String, double>{});
-  replyPort.send(const <String, int>{});
-  replyPort.send(const <String, num>{});
-
-  replyPort.send(const <bool, List>{});
-  replyPort.send(const <bool, Map>{});
-  replyPort.send(const <bool, Null>{});
-  replyPort.send(const <bool, Object>{});
-  replyPort.send(const <bool, String>{});
-  replyPort.send(const <bool, bool>{});
-  replyPort.send(const <bool, double>{});
-  replyPort.send(const <bool, int>{});
-  replyPort.send(const <bool, num>{});
-
-  replyPort.send(const <double, List>{});
-  replyPort.send(const <double, Map>{});
-  replyPort.send(const <double, Null>{});
-  replyPort.send(const <double, Object>{});
-  replyPort.send(const <double, String>{});
-  replyPort.send(const <double, bool>{});
-  replyPort.send(const <double, double>{});
-  replyPort.send(const <double, int>{});
-  replyPort.send(const <double, num>{});
-
-  replyPort.send(const <int, List>{});
-  replyPort.send(const <int, Map>{});
-  replyPort.send(const <int, Null>{});
-  replyPort.send(const <int, Object>{});
-  replyPort.send(const <int, String>{});
-  replyPort.send(const <int, bool>{});
-  replyPort.send(const <int, double>{});
-  replyPort.send(const <int, int>{});
-  replyPort.send(const <int, num>{});
-
-  replyPort.send(const <num, List>{});
-  replyPort.send(const <num, Map>{});
-  replyPort.send(const <num, Null>{});
-  replyPort.send(const <num, Object>{});
-  replyPort.send(const <num, String>{});
-  replyPort.send(const <num, bool>{});
-  replyPort.send(const <num, double>{});
-  replyPort.send(const <num, int>{});
-  replyPort.send(const <num, num>{});
-
-  print("Child done");
-}
-
-Future<void> main(List<String> args) async {
-  print("Parent start");
-
-  ReceivePort port = new ReceivePort();
-  Isolate.spawn(child, port.sendPort);
-  StreamIterator<dynamic> incoming = new StreamIterator<dynamic>(port);
-
-  Expect.isTrue(await incoming.moveNext());
-  dynamic x = incoming.current;
-  Expect.isTrue(x is List<List>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is List<Map>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is List<Null>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is List<Object>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is List<String>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is List<bool>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is List<double>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is List<int>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is List<num>);
-
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<List, List>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<List, Map>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<List, Null>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<List, Object>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<List, String>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<List, bool>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<List, double>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<List, int>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<List, num>);
-
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Map, List>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Map, Map>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Map, Null>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Map, Object>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Map, String>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Map, bool>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Map, double>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Map, int>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Map, num>);
-
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Null, List>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Null, Map>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Null, Null>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Null, Object>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Null, String>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Null, bool>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Null, double>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Null, int>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Null, num>);
-
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Object, List>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Object, Map>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Object, Null>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Object, Object>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Object, String>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Object, bool>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Object, double>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Object, int>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<Object, num>);
-
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<String, List>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<String, Map>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<String, Null>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<String, Object>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<String, String>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<String, bool>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<String, double>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<String, int>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<String, num>);
-
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<bool, List>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<bool, Map>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<bool, Null>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<bool, Object>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<bool, String>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<bool, bool>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<bool, double>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<bool, int>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<bool, num>);
-
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<double, List>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<double, Map>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<double, Null>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<double, Object>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<double, String>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<double, bool>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<double, double>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<double, int>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<double, num>);
-
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<int, List>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<int, Map>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<int, Null>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<int, Object>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<int, String>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<int, bool>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<int, double>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<int, int>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<int, num>);
-
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<num, List>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<num, Map>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<num, Null>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<num, Object>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<num, String>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<num, bool>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<num, double>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<num, int>);
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current;
-  Expect.isTrue(x is Map<num, num>);
-
-  port.close();
-  print("Parent done");
-}
diff --git a/tests/lib_2/isolate/message_const_type_arguments_2_test.dart b/tests/lib_2/isolate/message_const_type_arguments_2_test.dart
deleted file mode 100644
index cc2a7e3d291..00000000000
--- a/tests/lib_2/isolate/message_const_type_arguments_2_test.dart
+++ /dev/null
@@ -1,319 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// https://github.com/dart-lang/sdk/issues/35778
-
-import "dart:async";
-import "dart:isolate";
-
-import "package:expect/expect.dart";
-
-void child(replyPort) {
-  print("Child start");
-
-  replyPort.send(const <List>[]);
-  replyPort.send(const <Map>[]);
-  replyPort.send(const <Null>[]);
-  replyPort.send(const <Object>[]);
-  replyPort.send(const <String>[]);
-  replyPort.send(const <bool>[]);
-  replyPort.send(const <double>[]);
-  replyPort.send(const <int>[]);
-  replyPort.send(const <num>[]);
-
-  replyPort.send(const <List, List>{});
-  replyPort.send(const <List, Map>{});
-  replyPort.send(const <List, Null>{});
-  replyPort.send(const <List, Object>{});
-  replyPort.send(const <List, String>{});
-  replyPort.send(const <List, bool>{});
-  replyPort.send(const <List, double>{});
-  replyPort.send(const <List, int>{});
-  replyPort.send(const <List, num>{});
-
-  replyPort.send(const <Map, List>{});
-  replyPort.send(const <Map, Map>{});
-  replyPort.send(const <Map, Null>{});
-  replyPort.send(const <Map, Object>{});
-  replyPort.send(const <Map, String>{});
-  replyPort.send(const <Map, bool>{});
-  replyPort.send(const <Map, double>{});
-  replyPort.send(const <Map, int>{});
-  replyPort.send(const <Map, num>{});
-
-  replyPort.send(const <Null, List>{});
-  replyPort.send(const <Null, Map>{});
-  replyPort.send(const <Null, Null>{});
-  replyPort.send(const <Null, Object>{});
-  replyPort.send(const <Null, String>{});
-  replyPort.send(const <Null, bool>{});
-  replyPort.send(const <Null, double>{});
-  replyPort.send(const <Null, int>{});
-  replyPort.send(const <Null, num>{});
-
-  replyPort.send(const <Object, List>{});
-  replyPort.send(const <Object, Map>{});
-  replyPort.send(const <Object, Null>{});
-  replyPort.send(const <Object, Object>{});
-  replyPort.send(const <Object, String>{});
-  replyPort.send(const <Object, bool>{});
-  replyPort.send(const <Object, double>{});
-  replyPort.send(const <Object, int>{});
-  replyPort.send(const <Object, num>{});
-
-  replyPort.send(const <String, List>{});
-  replyPort.send(const <String, Map>{});
-  replyPort.send(const <String, Null>{});
-  replyPort.send(const <String, Object>{});
-  replyPort.send(const <String, String>{});
-  replyPort.send(const <String, bool>{});
-  replyPort.send(const <String, double>{});
-  replyPort.send(const <String, int>{});
-  replyPort.send(const <String, num>{});
-
-  replyPort.send(const <bool, List>{});
-  replyPort.send(const <bool, Map>{});
-  replyPort.send(const <bool, Null>{});
-  replyPort.send(const <bool, Object>{});
-  replyPort.send(const <bool, String>{});
-  replyPort.send(const <bool, bool>{});
-  replyPort.send(const <bool, double>{});
-  replyPort.send(const <bool, int>{});
-  replyPort.send(const <bool, num>{});
-
-  replyPort.send(const <double, List>{});
-  replyPort.send(const <double, Map>{});
-  replyPort.send(const <double, Null>{});
-  replyPort.send(const <double, Object>{});
-  replyPort.send(const <double, String>{});
-  replyPort.send(const <double, bool>{});
-  replyPort.send(const <double, double>{});
-  replyPort.send(const <double, int>{});
-  replyPort.send(const <double, num>{});
-
-  replyPort.send(const <int, List>{});
-  replyPort.send(const <int, Map>{});
-  replyPort.send(const <int, Null>{});
-  replyPort.send(const <int, Object>{});
-  replyPort.send(const <int, String>{});
-  replyPort.send(const <int, bool>{});
-  replyPort.send(const <int, double>{});
-  replyPort.send(const <int, int>{});
-  replyPort.send(const <int, num>{});
-
-  replyPort.send(const <num, List>{});
-  replyPort.send(const <num, Map>{});
-  replyPort.send(const <num, Null>{});
-  replyPort.send(const <num, Object>{});
-  replyPort.send(const <num, String>{});
-  replyPort.send(const <num, bool>{});
-  replyPort.send(const <num, double>{});
-  replyPort.send(const <num, int>{});
-  replyPort.send(const <num, num>{});
-
-  print("Child done");
-}
-
-Future<void> main(List<String> args) async {
-  print("Parent start");
-
-  ReceivePort port = new ReceivePort();
-  Isolate.spawn(child, port.sendPort);
-  StreamIterator<dynamic> incoming = new StreamIterator<dynamic>(port);
-
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <List>[]));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Map>[]));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Null>[]));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Object>[]));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <String>[]));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <bool>[]));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <double>[]));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <int>[]));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <num>[]));
-
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <List, List>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <List, Map>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <List, Null>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <List, Object>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <List, String>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <List, bool>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <List, double>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <List, int>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <List, num>{}));
-
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Map, List>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Map, Map>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Map, Null>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Map, Object>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Map, String>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Map, bool>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Map, double>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Map, int>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Map, num>{}));
-
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Null, List>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Null, Map>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Null, Null>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Null, Object>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Null, String>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Null, bool>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Null, double>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Null, int>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Null, num>{}));
-
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Object, List>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Object, Map>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Object, Null>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Object, Object>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Object, String>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Object, bool>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Object, double>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Object, int>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <Object, num>{}));
-
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <String, List>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <String, Map>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <String, Null>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <String, Object>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <String, String>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <String, bool>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <String, double>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <String, int>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <String, num>{}));
-
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <bool, List>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <bool, Map>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <bool, Null>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <bool, Object>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <bool, String>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <bool, bool>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <bool, double>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <bool, int>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <bool, num>{}));
-
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <double, List>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <double, Map>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <double, Null>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <double, Object>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <double, String>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <double, bool>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <double, double>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <double, int>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <double, num>{}));
-
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <int, List>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <int, Map>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <int, Null>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <int, Object>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <int, String>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <int, bool>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <int, double>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <int, int>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <int, num>{}));
-
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <num, List>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <num, Map>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <num, Null>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <num, Object>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <num, String>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <num, bool>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <num, double>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <num, int>{}));
-  Expect.isTrue(await incoming.moveNext());
-  Expect.isTrue(identical(incoming.current, const <num, num>{}));
-
-  port.close();
-  print("Parent done");
-}
diff --git a/tests/lib_2/isolate/message_enum_test.dart b/tests/lib_2/isolate/message_enum_test.dart
deleted file mode 100644
index 4c34b3837d7..00000000000
--- a/tests/lib_2/isolate/message_enum_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:isolate";
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-enum Foo { BAR, BAZ }
-
-main() {
-  var p;
-  p = new RawReceivePort((map) {
-    Expect.equals(1, map.keys.length);
-    Expect.equals(42, map.values.first);
-    var key = map.keys.first;
-    Expect.equals(42, map[key]);
-    p.close();
-  });
-  asyncStart();
-  Isolate.spawn(sendIt, p.sendPort).whenComplete(asyncEnd);
-}
-
-void sendIt(port) {
-  var map = {Foo.BAR: 42};
-  port.send(map);
-}
diff --git a/tests/lib_2/isolate/message_test.dart b/tests/lib_2/isolate/message_test.dart
deleted file mode 100644
index 94470cbbafa..00000000000
--- a/tests/lib_2/isolate/message_test.dart
+++ /dev/null
@@ -1,152 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test program for testing serialization of messages.
-// VMOptions=--enable_type_checks --enable_asserts
-
-library MessageTest;
-
-import 'dart:async';
-import 'dart:isolate';
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-// ---------------------------------------------------------------------------
-// Message passing test.
-// ---------------------------------------------------------------------------
-
-class MessageTest {
-  static const List list1 = const ["Hello", "World", "Hello", 0xfffffffffff];
-  static const List list2 = const [null, list1, list1, list1, list1];
-  static const List list3 = const [list2, 2.0, true, false, 0xfffffffffff];
-  static const Map map1 = const {
-    "a=1": 1,
-    "b=2": 2,
-    "c=3": 3,
-  };
-  static const Map map2 = const {
-    "list1": list1,
-    "list2": list2,
-    "list3": list3,
-  };
-  static const List list4 = const [map1, map2];
-  static const List elms = const [
-    list1,
-    list2,
-    list3,
-    list4,
-  ];
-
-  static void VerifyMap(Map expected, Map actual) {
-    Expect.equals(actual.length, expected.length);
-    testForEachMap(key, value) {
-      if (value is List) {
-        VerifyList(value, actual[key]);
-      } else {
-        Expect.equals(actual[key], value);
-      }
-    }
-
-    expected.forEach(testForEachMap);
-  }
-
-  static void VerifyList(List expected, List actual) {
-    for (int i = 0; i < expected.length; i++) {
-      if (expected[i] is List) {
-        VerifyList(expected[i], actual[i]);
-      } else if (expected[i] is Map) {
-        Expect.type<Map>(actual[i]);
-        VerifyMap(expected[i], actual[i]);
-      } else {
-        Expect.equals(actual[i], expected[i]);
-      }
-    }
-  }
-
-  static void VerifyObject(int index, var actual) {
-    var expected = elms[index];
-    Expect.type<List>(expected);
-    Expect.type<List>(actual);
-    Expect.equals(actual.length, expected.length);
-    VerifyList(expected, actual);
-  }
-}
-
-pingPong(replyTo) {
-  ReceivePort port = new ReceivePort();
-  int count = 0;
-  port.listen((pair) {
-    var message = pair[0];
-    var replyTo = pair[1];
-    if (message == -1) {
-      port.close();
-      replyTo.send(count);
-    } else {
-      // Check if the received object is correct.
-      if (count < MessageTest.elms.length) {
-        MessageTest.VerifyObject(count, message);
-      }
-      // Bounce the received object back so that the sender
-      // can make sure that the object matches.
-      replyTo.send(message);
-      count++;
-    }
-  });
-  replyTo.send(port.sendPort);
-}
-
-Future remoteCall(SendPort port, message) {
-  ReceivePort receivePort = new ReceivePort();
-  port.send([message, receivePort.sendPort]);
-  return receivePort.first;
-}
-
-void main([args, port]) {
-  ReceivePort port = new ReceivePort();
-  Isolate.spawn(pingPong, port.sendPort);
-  asyncStart();
-  port.first.then((remote) {
-    // Send objects and receive them back.
-    for (int i = 0; i < MessageTest.elms.length; i++) {
-      var sentObject = MessageTest.elms[i];
-      asyncStart();
-      remoteCall(remote, sentObject).then((receivedObject) {
-        MessageTest.VerifyObject(i, receivedObject);
-        asyncEnd();
-      });
-    }
-
-    // Send recursive objects and receive them back.
-    List local_list1 = ["Hello", "World", "Hello", 0xffffffffff];
-    List local_list2 = [null, local_list1, local_list1];
-    List local_list3 = [local_list2, 2.0, true, false, 0xffffffffff];
-    List sendObject = new List.filled(5, null);
-    sendObject[0] = local_list1;
-    sendObject[1] = sendObject;
-    sendObject[2] = local_list2;
-    sendObject[3] = sendObject;
-    sendObject[4] = local_list3;
-    remoteCall(remote, sendObject).then((var replyObject) {
-      Expect.type<List>(sendObject);
-      Expect.type<List>(replyObject);
-      Expect.equals(sendObject.length, replyObject.length);
-      Expect.identical(replyObject[1], replyObject);
-      Expect.identical(replyObject[3], replyObject);
-      Expect.identical(replyObject[0], replyObject[2][1]);
-      Expect.identical(replyObject[0], replyObject[2][2]);
-      Expect.identical(replyObject[2], replyObject[4][0]);
-      Expect.identical(replyObject[0][0], replyObject[0][2]);
-      Expect.equals(replyObject[0][3], replyObject[4][4]);
-    });
-
-    // Shutdown the MessageServer.
-    remoteCall(remote, -1).then((message) {
-      Expect.equals(message, MessageTest.elms.length + 1);
-      asyncEnd();
-    });
-  });
-}
diff --git a/tests/lib_2/isolate/mint_maker_test.dart b/tests/lib_2/isolate/mint_maker_test.dart
deleted file mode 100644
index 397d60b71ac..00000000000
--- a/tests/lib_2/isolate/mint_maker_test.dart
+++ /dev/null
@@ -1,186 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library MintMakerTest;
-
-import 'dart:async';
-import 'dart:isolate';
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-class Mint {
-  Map<SendPort, Purse> _registry;
-  SendPort port;
-
-  Mint() : _registry = new Map<SendPort, Purse>() {
-    ReceivePort mintPort = new ReceivePort();
-    port = mintPort.sendPort;
-    serveMint(mintPort);
-  }
-
-  void serveMint(ReceivePort port) {
-    port.listen((message) {
-      int balance = message[0];
-      Purse purse = createPurse(balance);
-      message[1].send(purse.port);
-    });
-  }
-
-  Purse createPurse(int balance) {
-    Purse purse = new Purse(this, balance);
-    _registry[purse.port] = purse;
-    return purse;
-  }
-
-  Purse lookupPurse(SendPort port) {
-    return _registry[port];
-  }
-}
-
-class MintWrapper {
-  SendPort _mint;
-  MintWrapper(SendPort this._mint) {}
-
-  void createPurse(int balance, handlePurse(PurseWrapper purse)) {
-    ReceivePort reply = new ReceivePort();
-    reply.first.then((purse) {
-      handlePurse(new PurseWrapper(purse as SendPort));
-    });
-    _mint.send([balance, reply.sendPort]);
-  }
-}
-
-class Purse {
-  Mint mint;
-  int balance;
-  SendPort port;
-
-  Purse(this.mint, this.balance) {
-    ReceivePort recipient = new ReceivePort();
-    port = recipient.sendPort;
-    servePurse(recipient);
-  }
-
-  void servePurse(ReceivePort recipient) {
-    recipient.listen((message) {
-      String command = message[0];
-      if (command == "balance") {
-        SendPort replyTo = message.last;
-        replyTo.send(queryBalance());
-      } else if (command == "deposit") {
-        Purse source = mint.lookupPurse(message[2]);
-        deposit(message[1], source);
-      } else if (command == "sprout") {
-        SendPort replyTo = message.last;
-        Purse result = sproutPurse();
-        replyTo.send(result.port);
-      } else {
-        // TODO: Send an exception back.
-        throw new UnsupportedError("Unsupported commend: $command");
-      }
-    });
-  }
-
-  int queryBalance() {
-    return balance;
-  }
-
-  Purse sproutPurse() {
-    return mint.createPurse(0);
-  }
-
-  void deposit(int amount, Purse source) {
-    // TODO: Throw an exception if the source purse doesn't hold
-    // enough dough.
-    balance += amount;
-    source.balance -= amount;
-  }
-}
-
-class PurseWrapper {
-  SendPort _purse;
-
-  PurseWrapper(this._purse) {}
-
-  void _sendReceive<T>(String message, replyHandler(T reply)) {
-    ReceivePort reply = new ReceivePort();
-    _purse.send([message, reply.sendPort]);
-    reply.first.then((a) => replyHandler(a as T));
-  }
-
-  void queryBalance(handleBalance(int balance)) {
-    _sendReceive("balance", handleBalance);
-  }
-
-  void sproutPurse(handleSprouted(PurseWrapper sprouted)) {
-    _sendReceive("sprout", (SendPort sprouted) {
-      handleSprouted(new PurseWrapper(sprouted));
-    });
-  }
-
-  void deposit(PurseWrapper source, int amount) {
-    _purse.send(["deposit", amount, source._purse]);
-  }
-}
-
-mintMakerWrapper(SendPort replyPort) {
-  ReceivePort receiver = new ReceivePort();
-  replyPort.send(receiver.sendPort);
-  receiver.listen((replyTo) {
-    Mint mint = new Mint();
-    (replyTo as SendPort).send(mint.port);
-  });
-}
-
-class MintMakerWrapper {
-  final SendPort _port;
-
-  static Future<MintMakerWrapper> create() {
-    ReceivePort reply = new ReceivePort();
-    return Isolate.spawn(mintMakerWrapper, reply.sendPort)
-        .then((_) => reply.first.then((port) => new MintMakerWrapper._(port)));
-  }
-
-  MintMakerWrapper._(this._port);
-
-  void makeMint(handleMint(MintWrapper mint)) {
-    ReceivePort reply = new ReceivePort();
-    reply.first.then((mint) {
-      handleMint(new MintWrapper(mint as SendPort));
-    });
-    _port.send(reply.sendPort);
-  }
-}
-
-_checkBalance(PurseWrapper wrapper, expected) {
-  wrapper.queryBalance((balance) {
-    Expect.equals(balance, expected);
-  });
-}
-
-void main([args, port]) {
-  asyncStart();
-  MintMakerWrapper.create().then((mintMaker) {
-    mintMaker.makeMint((mint) {
-      mint.createPurse(100, (purse) {
-        _checkBalance(purse, 100);
-        purse.sproutPurse((sprouted) {
-          _checkBalance(sprouted, 0);
-          _checkBalance(purse, 100);
-
-          sprouted.deposit(purse, 5);
-          _checkBalance(sprouted, 0 + 5);
-          _checkBalance(purse, 100 - 5);
-
-          sprouted.deposit(purse, 42);
-          _checkBalance(sprouted, 0 + 5 + 42);
-          _checkBalance(purse, 100 - 5 - 42);
-          asyncEnd();
-        });
-      });
-    });
-  });
-}
diff --git a/tests/lib_2/isolate/native_wrapper_message_test.dart b/tests/lib_2/isolate/native_wrapper_message_test.dart
deleted file mode 100644
index 8110b49a196..00000000000
--- a/tests/lib_2/isolate/native_wrapper_message_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:isolate';
-import 'dart:nativewrappers';
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-echo(msg) {
-  var data = msg[0];
-  var reply = msg[1];
-  reply.send('echoing ${data(1)}}');
-}
-
-class Test extends NativeFieldWrapperClass2 {
-  Test(this.i, this.j);
-  int i, j;
-}
-
-main() {
-  var port = new RawReceivePort();
-  var obj = new Test(1, 2);
-  var msg = [obj, port.sendPort];
-  var snd = Isolate.spawn(echo, msg);
-
-  asyncStart();
-  snd.catchError((e) {
-    Expect.isTrue(e is ArgumentError);
-    Expect.isTrue("$e".contains("Test"));
-    port.close();
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/isolate/nested_spawn2_test.dart b/tests/lib_2/isolate/nested_spawn2_test.dart
deleted file mode 100644
index 9b93cb9901a..00000000000
--- a/tests/lib_2/isolate/nested_spawn2_test.dart
+++ /dev/null
@@ -1,78 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test program for testing that isolates can spawn other isolates and
-// that the nested isolates can communicate with the main once the spawner has
-// disappeared.
-
-library NestedSpawn2Test;
-
-import 'dart:isolate';
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-void isolateA(SendPort init) {
-  ReceivePort port = new ReceivePort();
-  init.send(port.sendPort);
-  port.first.then((message) {
-    Expect.equals(message[0], "launch nested!");
-    SendPort replyTo = message[1];
-    Isolate.spawn(isolateB, replyTo);
-  });
-}
-
-String msg0 = "0 there?";
-String msg1 = "1 Yes.";
-String msg2 = "2 great. Think the other one is already dead?";
-String msg3 = "3 Give him some time.";
-String msg4 = "4 now?";
-String msg5 = "5 Now.";
-String msg6 = "6 Great. Bye";
-
-void _call(SendPort p, msg, void onreceive(m, replyTo)) {
-  final replyTo = new ReceivePort();
-  p.send([msg, replyTo.sendPort]);
-  replyTo.first.then((m) {
-    onreceive(m[0], m[1]);
-  });
-}
-
-void isolateB(SendPort mainPort) {
-  // Do a little ping-pong dance to give the intermediate isolate
-  // time to die.
-  _call(mainPort, msg0, ((msg, replyTo) {
-    Expect.equals(msg[0], "1");
-    _call(replyTo, msg2, ((msg, replyTo) {
-      Expect.equals(msg[0], "3");
-      _call(replyTo, msg4, ((msg, replyTo) {
-        Expect.equals(msg[0], "5");
-        replyTo.send([msg6, null]);
-      }));
-    }));
-  }));
-}
-
-void main([args, port]) {
-  // spawned isolate can spawn other isolates
-  ReceivePort init = new ReceivePort();
-  Isolate.spawn(isolateA, init.sendPort);
-  asyncStart();
-  init.first.then((port) {
-    _call(port, "launch nested!", (msg, replyTo) {
-      Expect.equals(msg[0], "0");
-      _call(replyTo, msg1, (msg, replyTo) {
-        Expect.equals(msg[0], "2");
-        _call(replyTo, msg3, (msg, replyTo) {
-          Expect.equals(msg[0], "4");
-          _call(replyTo, msg5, (msg, _) {
-            Expect.equals(msg[0], "6");
-            asyncEnd();
-          });
-        });
-      });
-    });
-  });
-}
diff --git a/tests/lib_2/isolate/nested_spawn_test.dart b/tests/lib_2/isolate/nested_spawn_test.dart
deleted file mode 100644
index 4483df19ff5..00000000000
--- a/tests/lib_2/isolate/nested_spawn_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test program for testing that isolates can spawn other isolates.
-
-library NestedSpawnTest;
-
-import 'dart:isolate';
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-void isolateA(message) {
-  message.add("isolateA");
-  Isolate.spawn(isolateB, message);
-}
-
-void isolateB(message) {
-  message.add("isolateB");
-  message[0].send(message);
-}
-
-void main([args, port]) {
-  // spawned isolates can spawn nested isolates
-  ReceivePort port = new ReceivePort();
-  Isolate.spawn(isolateA, [port.sendPort, "main"]);
-  asyncStart();
-  port.first.then((message) {
-    Expect.equals("main", message[1]);
-    Expect.equals("isolateA", message[2]);
-    Expect.equals("isolateB", message[3]);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/isolate/non_fatal_exception_in_timer_callback_test.dart b/tests/lib_2/isolate/non_fatal_exception_in_timer_callback_test.dart
deleted file mode 100644
index d1a1d32b0e0..00000000000
--- a/tests/lib_2/isolate/non_fatal_exception_in_timer_callback_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import 'dart:isolate';
-import 'dart:io';
-
-main() async {
-  Isolate.current.setErrorsFatal(false);
-
-  new Timer(const Duration(milliseconds: 10), () {
-    print("Timer 1");
-
-    // This unhandled exception should not prevent the second timer from firing.
-    throw "Oh no!";
-  });
-
-  new Timer.periodic(const Duration(milliseconds: 20), (_) {
-    print("Timer 2");
-    exit(0);
-  });
-
-  sleep(const Duration(milliseconds: 30)); //# sleep: ok
-  // With sleep: both timers are due at the same wakeup event.
-  // Without sleep: the timers get separate wakeup events.
-}
diff --git a/tests/lib_2/isolate/object_leak_test.dart b/tests/lib_2/isolate/object_leak_test.dart
deleted file mode 100644
index 8602ca07cae..00000000000
--- a/tests/lib_2/isolate/object_leak_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for http://dartbug.com/18942
-
-library LeakTest;
-
-import 'dart:isolate';
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-class A {
-  var x = 0;
-}
-
-fun(msg) {
-  var a = msg[0];
-  var replyTo = msg[1];
-  print("received: ${a.x}");
-  a.x = 1;
-  print("done updating: ${a.x}");
-  replyTo.send("done");
-}
-
-main() {
-  asyncStart();
-  var a = new A();
-  ReceivePort rp = new ReceivePort();
-  Isolate.spawn(fun, [a, rp.sendPort]);
-  rp.first.then((msg) {
-    Expect.equals("done", msg);
-    // Changes in other isolate must not reach here.
-    Expect.equals(0, a.x);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/isolate/ondone_test.dart b/tests/lib_2/isolate/ondone_test.dart
deleted file mode 100644
index 1b8421fa9f5..00000000000
--- a/tests/lib_2/isolate/ondone_test.dart
+++ /dev/null
@@ -1,127 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:isolate";
-import "dart:async";
-
-import "package:async_helper/async_helper.dart";
-
-void isomain(SendPort replyPort) {
-  RawReceivePort port = new RawReceivePort();
-  port.handler = (v) {
-    if (v == 0) {
-      // Shut down when receiving the 0 message.
-      port.close();
-    } else {
-      replyPort.send(v);
-    }
-  };
-  replyPort.send(port.sendPort);
-}
-
-void main() {
-  testExit();
-  testCancelExit();
-  testOverrideResponse();
-}
-
-void testExit() {
-  bool mayComplete = false;
-  asyncStart();
-  var completer = new Completer(); // Completed by first reply from isolate.
-  RawReceivePort reply = new RawReceivePort(completer.complete);
-  RawReceivePort onExitPort;
-  onExitPort = new RawReceivePort((v) {
-    if (v != "RESPONSE") throw "WRONG RESPONSE: $v";
-    reply.close();
-    onExitPort.close();
-    if (!mayComplete) throw "COMPLETED EARLY";
-    asyncEnd();
-  });
-  Isolate.spawn(isomain, reply.sendPort).then((Isolate isolate) {
-    isolate.addOnExitListener(onExitPort.sendPort, response: "RESPONSE");
-    return completer.future;
-  }).then((echoPort) {
-    int counter = 4;
-    reply.handler = (v) {
-      if (v != counter) throw "WRONG REPLY";
-      if (v == 0) throw "REPLY INSTEAD OF SHUTDOWN";
-      counter--;
-      mayComplete = (counter == 0);
-      echoPort.send(counter);
-    };
-    echoPort.send(counter);
-  });
-}
-
-void testCancelExit() {
-  bool mayComplete = false;
-  asyncStart();
-  var completer = new Completer(); // Completed by first reply from isolate.
-  RawReceivePort reply = new RawReceivePort(completer.complete);
-  RawReceivePort onExitPort2 = new RawReceivePort((_) {
-    throw "RECEIVED EXIT MESSAGE";
-  });
-  RawReceivePort onExitPort1;
-  onExitPort1 = new RawReceivePort((_) {
-    reply.close();
-    onExitPort1.close();
-    if (!mayComplete) throw "COMPLETED EARLY";
-    new Timer(const Duration(milliseconds: 0), () {
-      onExitPort2.close();
-      asyncEnd();
-    });
-  });
-  Isolate.spawn(isomain, reply.sendPort).then((Isolate isolate) {
-    isolate.addOnExitListener(onExitPort2.sendPort);
-    isolate.addOnExitListener(onExitPort1.sendPort);
-    return completer.future.then((echoPort) {
-      int counter = 4;
-      reply.handler = (v) {
-        if (v != counter) throw "WRONG REPLY";
-        if (v == 0) throw "REPLY INSTEAD OF SHUTDOWN";
-        counter--;
-        mayComplete = (counter == 0);
-        if (counter == 1) {
-          // Remove listener 2, keep listener 1.
-          isolate.removeOnExitListener(onExitPort2.sendPort);
-        }
-        echoPort.send(counter);
-      };
-      echoPort.send(counter);
-    });
-  });
-}
-
-void testOverrideResponse() {
-  bool mayComplete = false;
-  asyncStart();
-  var completer = new Completer(); // Completed by first reply from isolate.
-  RawReceivePort reply = new RawReceivePort(completer.complete);
-  RawReceivePort onExitPort;
-  onExitPort = new RawReceivePort((v) {
-    if (v != "RESPONSE2") throw "WRONG RESPONSE: $v";
-    reply.close();
-    onExitPort.close();
-    if (!mayComplete) throw "COMPLETED EARLY";
-    asyncEnd();
-  });
-  Isolate.spawn(isomain, reply.sendPort).then((Isolate isolate) {
-    isolate.addOnExitListener(onExitPort.sendPort, response: "RESPONSE");
-    isolate.addOnExitListener(onExitPort.sendPort, response: "RESPONSE2");
-    return completer.future;
-  }).then((echoPort) {
-    int counter = 4;
-    reply.handler = (v) {
-      if (v != counter) throw "WRONG REPLY";
-      if (v == 0) throw "REPLY INSTEAD OF SHUTDOWN";
-      counter--;
-      mayComplete = (counter == 0);
-      echoPort.send(counter);
-    };
-    echoPort.send(counter);
-  });
-}
diff --git a/tests/lib_2/isolate/package_config_getter_test.dart b/tests/lib_2/isolate/package_config_getter_test.dart
deleted file mode 100644
index 43e279ab732..00000000000
--- a/tests/lib_2/isolate/package_config_getter_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:io';
-
-import 'package:path/path.dart' as path;
-
-import 'spawn_uri__package_uri__test.dart';
-
-final executable = Platform.executable;
-
-main() async {
-  // Make a folder structure that has both ".dart_tool/package_config.json" and
-  // ".packages" and ensure VM prefers to use ".packages".
-  await withTempDir((String tempDir) async {
-    // Setup bogus ".packages" with "foo -> ..." with invalid mapping.
-    final dotPackagesPath = path.join(tempDir, '.packages');
-    final dotPackagesFile = File(dotPackagesPath);
-    await dotPackagesFile.writeAsString(buildDotPackages('invalid'));
-
-    // Setup ".dart_tool/package_config.json".
-    final dotDartToolDir = path.join(tempDir, '.dart_tool');
-    await Directory(dotDartToolDir).create();
-    final packageConfigJsonPath =
-        path.join(dotDartToolDir, 'package_config.json');
-    final packageConfigJsonFile = File(packageConfigJsonPath);
-    await packageConfigJsonFile.writeAsString(buildPackageConfig('foo', true));
-
-    final mainFile = path.join(tempDir, 'main.dart');
-    await File(mainFile).writeAsString('''
-import 'dart:io' as io;
-import 'dart:isolate';
-
-main() async {
-  final uri = await Isolate.packageConfig;
-  final expectedUri = Uri.parse('${packageConfigJsonFile.uri}');
-  if (uri != expectedUri) {
-    throw 'VM should use .packages file (but used \$uri).';
-  }
-}
-''');
-
-    await run(executable, [mainFile]);
-  });
-}
diff --git a/tests/lib_2/isolate/package_config_test.dart b/tests/lib_2/isolate/package_config_test.dart
deleted file mode 100644
index fe0725d9d5e..00000000000
--- a/tests/lib_2/isolate/package_config_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--trace_shutdown
-
-import 'dart:io';
-import 'dart:isolate';
-
-const String packageConfig = "foobar:///no/such/file/";
-const String errorString = "IsolateSpawnException: Unable to spawn isolate:";
-const String errorString2 = "Error when reading '$packageConfig'";
-
-main([args, msg]) async {
-  if (msg != null) {
-    throw 'unreachable';
-  }
-  dynamic error;
-  try {
-    await Isolate.spawnUri(Platform.script, [], 'msg',
-        packageConfig: Uri.parse('foobar:///no/such/file/'));
-  } catch (e) {
-    error = e;
-  }
-  if (error == null) throw 'Expected a Spawning error.';
-  if (!'$error'.contains(errorString)) {
-    throw 'Expected: $error to contain "$errorString"';
-  }
-  if (!'$error'.contains(errorString2)) {
-    throw 'Expected: $error to contain "$errorString2"';
-  }
-}
diff --git a/tests/lib_2/isolate/package_resolve_test.dart b/tests/lib_2/isolate/package_resolve_test.dart
deleted file mode 100644
index 72cfbe588e3..00000000000
--- a/tests/lib_2/isolate/package_resolve_test.dart
+++ /dev/null
@@ -1,74 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:io';
-import 'dart:isolate';
-
-final packageUriToResolve = "package:foo/bar.dart";
-final packageResolvedUri = "file:///no/such/directory/lib/bar.dart";
-
-final packageConfigJson = """
-{
-  "configVersion": 2,
-  "packages": [
-    {
-      "name": "foo",
-      "rootUri": "file:///no/such/directory",
-      "packageUri": "lib/",
-      "languageVersion": "2.7"
-    }
-  ]
-}
-""";
-
-main([args, port]) async {
-  if (port != null) {
-    testPackageResolution(port);
-    return;
-  }
-  await runTest(packageConfigJson);
-}
-
-Future runTest(String packageConfig) async {
-  final data = Uri.dataFromString(packageConfig);
-  final port = ReceivePort();
-  await Isolate.spawnUri(Platform.script, [], port.sendPort,
-      packageConfig: data);
-  final msg = await port.first;
-  if (msg is! List) {
-    print(msg.runtimeType);
-    throw "Failure return from spawned isolate:\n\n$msg";
-  }
-  if (msg[0] != data.toString()) {
-    throw "Bad package config in child isolate: ${msg[0]}\n"
-        "Expected: $data";
-  }
-  if (msg[1] != packageResolvedUri) {
-    throw "Package path not matching: ${msg[1]}";
-  }
-  print("SUCCESS");
-}
-
-testPackageResolution(port) async {
-  try {
-    var packageConfigStr = Platform.packageConfig;
-    var packageConfig = await Isolate.packageConfig;
-    if (packageConfig != Isolate.packageConfigSync) {
-      throw "Isolate.packageConfig != Isolate.packageConfigSync";
-    }
-    var resolvedPkg =
-        await Isolate.resolvePackageUri(Uri.parse(packageUriToResolve));
-    if (resolvedPkg != Isolate.resolvePackageUriSync(packageUriToResolve)) {
-      throw "Isolate.resolvePackageUri != Isolate.resolvePackageUriSync";
-    }
-    print("Spawned isolate's package config flag: $packageConfigStr");
-    print("Spawned isolate's loaded package config: $packageConfig");
-    print("Spawned isolate's resolved package path: $resolvedPkg");
-    port.send([packageConfig?.toString(), resolvedPkg?.toString()]);
-  } catch (e, s) {
-    port.send("$e\n$s\n");
-  }
-}
diff --git a/tests/lib_2/isolate/package_root_test.dart b/tests/lib_2/isolate/package_root_test.dart
deleted file mode 100644
index a30940c320e..00000000000
--- a/tests/lib_2/isolate/package_root_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:io';
-import 'dart:isolate';
-
-final SPAWN_PACKAGE_ROOT = "file:///no/such/file/";
-
-main([args, port]) async {
-  if (port != null) {
-    testPackageRoot(port);
-    return;
-  }
-  var p = new RawReceivePort();
-  Isolate.spawnUri(Platform.script, [], p.sendPort,
-      packageRoot: Uri.parse(SPAWN_PACKAGE_ROOT));
-  p.handler = (msg) {
-    p.close();
-    print("SUCCESS");
-  };
-}
-
-testPackageRoot(port) async {
-  port.send('done');
-}
diff --git a/tests/lib_2/isolate/pause_test.dart b/tests/lib_2/isolate/pause_test.dart
deleted file mode 100644
index 5649705e0ef..00000000000
--- a/tests/lib_2/isolate/pause_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:isolate";
-import "dart:async";
-import "package:async_helper/async_helper.dart";
-
-isomain1(replyPort) {
-  RawReceivePort port = new RawReceivePort();
-  port.handler = (v) {
-    replyPort.send(v);
-    port.close();
-  };
-  replyPort.send(port.sendPort);
-}
-
-main() {
-  asyncStart();
-  RawReceivePort reply = new RawReceivePort();
-  Isolate isolate;
-  Capability resume;
-  var completer = new Completer(); // Completed by first reply from isolate.
-  reply.handler = completer.complete;
-  Isolate.spawn(isomain1, reply.sendPort).then((Isolate iso) {
-    isolate = iso;
-    return completer.future;
-  }).then((echoPort) {
-    // Isolate has been created, and first response has been returned.
-    resume = isolate.pause();
-    echoPort.send(24);
-    reply.handler = (v) {
-      throw "RESPONSE WHILE PAUSED?!?";
-    };
-    return new Future.delayed(const Duration(milliseconds: 250));
-  }).then((_) {
-    reply.handler = (v) {
-      if (v != 24) throw "WRONG ANSWER!";
-      reply.close();
-      asyncEnd();
-    };
-    isolate.resume(resume);
-  });
-}
diff --git a/tests/lib_2/isolate/ping_pause_test.dart b/tests/lib_2/isolate/ping_pause_test.dart
deleted file mode 100644
index 8f9ffa03741..00000000000
--- a/tests/lib_2/isolate/ping_pause_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:isolate";
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-isomain1(replyPort) {
-  RawReceivePort port = new RawReceivePort();
-  port.handler = (v) {
-    replyPort.send(v);
-    if (v == 0) port.close();
-  };
-  replyPort.send(port.sendPort);
-}
-
-void main() {
-  asyncStart();
-  var completer = new Completer(); // Completed by first reply from isolate.
-  RawReceivePort reply = new RawReceivePort(completer.complete);
-  Isolate.spawn(isomain1, reply.sendPort).then((Isolate isolate) {
-    List result = [];
-    completer.future.then((echoPort) {
-      reply.handler = (v) {
-        result.add(v);
-        if (v == 0) {
-          Expect.listEquals([4, 3, 2, 1, 0], result);
-          reply.close();
-          asyncEnd();
-        }
-      };
-      echoPort.send(4);
-      echoPort.send(3);
-      Capability resume = isolate.pause();
-      var pingPort = new RawReceivePort();
-      pingPort.handler = (_) {
-        Expect.isTrue(result.length <= 2);
-        echoPort.send(0);
-        isolate.resume(resume);
-        pingPort.close();
-      };
-      isolate.ping(pingPort.sendPort, priority: Isolate.beforeNextEvent);
-      echoPort.send(2);
-      echoPort.send(1);
-    });
-  });
-}
diff --git a/tests/lib_2/isolate/ping_test.dart b/tests/lib_2/isolate/ping_test.dart
deleted file mode 100644
index c182e48ffd5..00000000000
--- a/tests/lib_2/isolate/ping_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:isolate";
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-isomain1(replyPort) {
-  RawReceivePort port = new RawReceivePort();
-  port.handler = (v) {
-    replyPort.send(v);
-    if (v == 0) port.close();
-  };
-  replyPort.send(port.sendPort);
-}
-
-void main() {
-  asyncStart();
-  var completer = new Completer(); // Completed by first reply from isolate.
-  RawReceivePort reply = new RawReceivePort(completer.complete);
-  Isolate.spawn(isomain1, reply.sendPort).then((Isolate isolate) {
-    List result = [];
-    completer.future.then((echoPort) {
-      reply.handler = (v) {
-        result.add(v);
-        if (v == 0) {
-          Expect.listEquals(["alive", "control"],
-              result.where((x) => x is String).toList(), "control events");
-          Expect.listEquals([3, 2, 1, 0],
-              result.where((x) => x is int).toList(), "data events");
-          Expect.isTrue(
-              result.indexOf("alive") < result.indexOf(2), "alive index < 2");
-          Expect.isTrue(result.indexOf("control") < result.indexOf(1),
-              "control index < 1");
-          reply.close();
-          asyncEnd();
-        }
-      };
-      var pingPort = new RawReceivePort();
-      int pingCount = 0;
-      pingPort.handler = (response) {
-        result.add(response);
-        pingCount++;
-        if (pingCount == 2) pingPort.close();
-      };
-      ping(message, priority) {
-        isolate.ping(pingPort.sendPort, response: message, priority: priority);
-      }
-
-      echoPort.send(3);
-      ping("alive", Isolate.immediate);
-      echoPort.send(2);
-      ping("control", Isolate.beforeNextEvent);
-      echoPort.send(1);
-      echoPort.send(0);
-    });
-  });
-}
diff --git a/tests/lib_2/isolate/port_test.dart b/tests/lib_2/isolate/port_test.dart
deleted file mode 100644
index 76e24111568..00000000000
--- a/tests/lib_2/isolate/port_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test properties of ports.
-library PortTest;
-
-import "package:expect/expect.dart";
-import 'dart:isolate';
-
-main() {
-  testHashCode();
-  testEquals();
-  testMap();
-}
-
-void testHashCode() {
-  ReceivePort rp0 = new ReceivePort();
-  ReceivePort rp1 = new ReceivePort();
-  Expect.equals(rp0.sendPort.hashCode, rp0.sendPort.hashCode);
-  Expect.equals(rp1.sendPort.hashCode, rp1.sendPort.hashCode);
-  rp0.close();
-  rp1.close();
-}
-
-void testEquals() {
-  ReceivePort rp0 = new ReceivePort();
-  ReceivePort rp1 = new ReceivePort();
-  Expect.equals(rp0.sendPort, rp0.sendPort);
-  Expect.equals(rp1.sendPort, rp1.sendPort);
-  Expect.isFalse(rp0.sendPort == rp1.sendPort);
-  rp0.close();
-  rp1.close();
-}
-
-void testMap() {
-  ReceivePort rp0 = new ReceivePort();
-  ReceivePort rp1 = new ReceivePort();
-  final map = new Map<SendPort, int>();
-  map[rp0.sendPort] = 42;
-  map[rp1.sendPort] = 87;
-  Expect.equals(map[rp0.sendPort], 42);
-  Expect.equals(map[rp1.sendPort], 87);
-
-  map[rp0.sendPort] = 99;
-  Expect.equals(map[rp0.sendPort], 99);
-  Expect.equals(map[rp1.sendPort], 87);
-
-  map.remove(rp0.sendPort);
-  Expect.isFalse(map.containsKey(rp0.sendPort));
-  Expect.equals(map[rp1.sendPort], 87);
-
-  map.remove(rp1.sendPort);
-  Expect.isFalse(map.containsKey(rp0.sendPort));
-  Expect.isFalse(map.containsKey(rp1.sendPort));
-
-  rp0.close();
-  rp1.close();
-}
diff --git a/tests/lib_2/isolate/raw_port_test.dart b/tests/lib_2/isolate/raw_port_test.dart
deleted file mode 100644
index 58da687ba82..00000000000
--- a/tests/lib_2/isolate/raw_port_test.dart
+++ /dev/null
@@ -1,123 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test RawReceivePort.
-
-library raw_port_test;
-
-import 'dart:async';
-import 'dart:isolate';
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-void remote(SendPort port) {
-  port.send("reply");
-}
-
-void remote2(SendPort port) {
-  port.send("reply 1");
-  port.send("reply 2");
-}
-
-main([args, port]) async {
-  // Raw receive
-  asyncTest(() {
-    final completer = Completer<void>();
-    RawReceivePort port = new RawReceivePort();
-    Isolate.spawn(remote, port.sendPort);
-    port.handler = (v) {
-      Expect.equals(v, "reply");
-      port.close();
-      completer.complete();
-    };
-    return completer.future;
-  });
-
-  // Raw receive hashCode
-  {
-    RawReceivePort port = new RawReceivePort();
-    Expect.isTrue(port.hashCode is int);
-    port.close();
-  }
-
-  // Raw receive twice - change handler
-  asyncTest(() {
-    final completer = Completer<void>();
-    RawReceivePort port = new RawReceivePort();
-    Isolate.spawn(remote2, port.sendPort);
-    port.handler = (v) {
-      Expect.equals(v, "reply 1");
-      port.handler = (v) {
-        Expect.equals(v, "reply 2");
-        port.close();
-        completer.complete();
-      };
-    };
-    return completer.future;
-  });
-
-  // From raw port
-  asyncTest(() {
-    final completer = Completer<void>();
-    RawReceivePort rawPort = new RawReceivePort();
-    Isolate.spawn(remote, rawPort.sendPort);
-    rawPort.handler = (v) {
-      Expect.equals(v, "reply");
-      ReceivePort port = new ReceivePort.fromRawReceivePort(rawPort);
-      Isolate.spawn(remote, rawPort.sendPort);
-      Isolate.spawn(remote, port.sendPort);
-      int ctr = 2;
-      port.listen(
-        (v) {
-          Expect.equals(v, "reply");
-          ctr--;
-          if (ctr == 0) port.close();
-        },
-        onDone: () => completer.complete(),
-      );
-    };
-    return completer.future;
-  });
-
-  // keepIsolateAlive = false
-  asyncTest(() async {
-    final parentPort = ReceivePort();
-    final onExit = ReceivePort();
-
-    final parentSendPort = parentPort.sendPort;
-    await Isolate.spawn((_) async {
-      final weakPort = RawReceivePort();
-      parentSendPort.send(weakPort.sendPort);
-      weakPort.handler = (message) {
-        weakPort.keepIsolateAlive = false;
-        parentSendPort.send(1000 + message);
-      };
-    }, null, onExit: onExit.sendPort);
-
-    final si = StreamIterator(parentPort);
-
-    Expect.isTrue(await si.moveNext());
-    final childPort = si.current as SendPort;
-    childPort.send(234);
-
-    Expect.isTrue(await si.moveNext());
-    Expect.equals(si.current, 1234);
-
-    await si.cancel();
-    await onExit.first;
-  });
-
-  // keepIsolateAlive getter
-  asyncTest(() async {
-    final port = RawReceivePort();
-    Expect.isTrue(port.keepIsolateAlive);
-    port.keepIsolateAlive = false;
-    Expect.isFalse(port.keepIsolateAlive);
-    port.keepIsolateAlive = true;
-    Expect.isTrue(port.keepIsolateAlive);
-    port.close();
-  });
-}
diff --git a/tests/lib_2/isolate/regress_34752_test.dart b/tests/lib_2/isolate/regress_34752_test.dart
deleted file mode 100644
index c630609838c..00000000000
--- a/tests/lib_2/isolate/regress_34752_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--no-enable-fast-object-copy
-// VMOptions=--enable-fast-object-copy
-
-// Verifies that large BigInt can be passed through a message port and
-// simple arithmetic operations still work after that.
-// This is a regression test for https://github.com/dart-lang/sdk/issues/34752.
-
-import 'dart:io';
-import 'dart:isolate';
-
-import "package:expect/expect.dart";
-
-const int kValue = 12345678;
-const int kShift = 8192 * 8;
-
-void verify(BigInt x) {
-  BigInt y = x >> kShift;
-  Expect.equals("$kValue", "$y");
-}
-
-void main() {
-  BigInt big = BigInt.from(kValue) << kShift;
-  verify(big);
-
-  final rp = new ReceivePort();
-  rp.listen((dynamic data) {
-    BigInt received = data as BigInt;
-    verify(received);
-    BigInt x = received + BigInt.one - BigInt.one;
-    verify(x);
-    print("ok");
-    exit(0);
-  });
-  rp.sendPort.send(big);
-}
diff --git a/tests/lib_2/isolate/regress_flutter_22796_test.dart b/tests/lib_2/isolate/regress_flutter_22796_test.dart
deleted file mode 100644
index 4530c1460e2..00000000000
--- a/tests/lib_2/isolate/regress_flutter_22796_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verifies that large typed data can be passed in a field through message port.
-// This is a regression test for
-// https://github.com/flutter/flutter/issues/22796.
-
-import 'dart:io';
-import 'dart:isolate';
-import 'dart:typed_data';
-
-import "package:expect/expect.dart";
-
-class A {
-  // TFA thinks this field has type _Int32List but sending an object across
-  // a message port creates an instance that has _ExternalInt32List inside.
-  final _int32Array = new Int32List(5 * 1024);
-  A() {
-    _int32Array.setRange(
-        0, _int32Array.length, Iterable.generate(_int32Array.length));
-    verify();
-  }
-
-  void verify() {
-    for (var i = 0; i < _int32Array.length; i++) {
-      if (_int32Array[i] != i) {
-        print('_int32Array[$i]: ${_int32Array[i]} != ${i}');
-      }
-      Expect.equals(i, _int32Array[i]);
-    }
-  }
-}
-
-void main() {
-  final rp = new ReceivePort();
-  rp.listen((dynamic data) {
-    (data as A).verify();
-    print("ok");
-    rp.close();
-  });
-  rp.sendPort.send(A());
-}
diff --git a/tests/lib_2/isolate/remove_error_listener_test.dart b/tests/lib_2/isolate/remove_error_listener_test.dart
deleted file mode 100644
index c6102522532..00000000000
--- a/tests/lib_2/isolate/remove_error_listener_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// @dart = 2.9
-//
-// Test that removing error listener makes exception throwing unhandled.
-
-import 'dart:io';
-import 'dart:isolate';
-
-import "package:expect/expect.dart";
-
-void main(List<String> args) {
-  if (args.length == 0) {
-    final result = Process.runSync(Platform.executable, [
-      ...Platform.executableArguments,
-      Platform.script.toFilePath(),
-      'child'
-    ]);
-    Expect.isTrue(result.stderr.contains(
-        "Unhandled exception:${Platform.lineTerminator}Exception: Oops!"));
-    return;
-  }
-  {
-    final port = ReceivePort();
-    Isolate.current.addErrorListener(port.sendPort);
-    Isolate.current.removeErrorListener(port.sendPort);
-    port.close();
-    throw Exception('Oops!');
-  }
-}
diff --git a/tests/lib_2/isolate/request_reply_test.dart b/tests/lib_2/isolate/request_reply_test.dart
deleted file mode 100644
index 23e55edbb78..00000000000
--- a/tests/lib_2/isolate/request_reply_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library RequestReplyTest;
-
-import 'dart:isolate';
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-void entry(initPort) {
-  ReceivePort port = new ReceivePort();
-  initPort.send(port.sendPort);
-  port.listen((pair) {
-    var message = pair[0];
-    SendPort replyTo = pair[1];
-    replyTo.send(message + 87);
-    port.close();
-  });
-}
-
-void main([args, port]) {
-  ReceivePort init = new ReceivePort();
-  Isolate.spawn(entry, init.sendPort);
-  asyncStart();
-  init.first.then((port) {
-    ReceivePort reply = new ReceivePort();
-    port.send([99, reply.sendPort]);
-    reply.listen((message) {
-      Expect.equals(message, 99 + 87);
-      reply.close();
-      asyncEnd();
-    });
-  });
-}
diff --git a/tests/lib_2/isolate/scenarios/automatic_resolution_root/packages/empty_file b/tests/lib_2/isolate/scenarios/automatic_resolution_root/packages/empty_file
deleted file mode 100644
index e69de29bb2d..00000000000
diff --git a/tests/lib_2/isolate/scenarios/automatic_resolution_spec/.packages b/tests/lib_2/isolate/scenarios/automatic_resolution_spec/.packages
deleted file mode 100644
index 79bcf431697..00000000000
--- a/tests/lib_2/isolate/scenarios/automatic_resolution_spec/.packages
+++ /dev/null
@@ -1 +0,0 @@
-foo:file:///no/such/directory/
diff --git a/tests/lib_2/isolate/scenarios/automatic_resolution_spec/package_resolve_test.dart b/tests/lib_2/isolate/scenarios/automatic_resolution_spec/package_resolve_test.dart
deleted file mode 100644
index 7c945911f80..00000000000
--- a/tests/lib_2/isolate/scenarios/automatic_resolution_spec/package_resolve_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:io';
-import 'dart:isolate';
-
-final packageUriToResolve = Uri.parse("package:foo/bar.dart");
-final packagePath = "file:///no/such/directory/bar.dart";
-
-main([args, port]) async {
-  if (port != null) {
-    testPackageResolution(port);
-    return;
-  }
-  var p = new RawReceivePort();
-  Isolate.spawnUri(Platform.script, [], p.sendPort,
-      automaticPackageResolution: true);
-  p.handler = (msg) {
-    p.close();
-    if (msg is! List) {
-      print(msg.runtimeType);
-      throw "Failure return from spawned isolate:\n\n$msg";
-    }
-    var child_pkg_config = Platform.script.resolve(".packages");
-    if (msg[0] != child_pkg_config.toString()) {
-      throw "Bad package config in child isolate: ${msg[0]}\n"
-          "Expected: $child_pkg_config";
-    }
-    if (msg[1] != packagePath) {
-      throw "Package path not matching: ${msg[1]}";
-    }
-    print("SUCCESS");
-  };
-}
-
-testPackageResolution(port) async {
-  try {
-    var packageConfigStr = Platform.packageConfig;
-    var packageConfig = await Isolate.packageConfig;
-    if (packageConfig != Isolate.packageConfigSync) {
-      throw "Isolate.packageConfig != Isolate.packageConfigSync";
-    }
-    var resolvedPkg = await Isolate.resolvePackageUri(packageUriToResolve);
-    if (resolvedPkg != Isolate.resolvePackageUriSync(packageUriToResolve)) {
-      throw "Isolate.resolvePackageUri != Isolate.resolvePackageUriSync";
-    }
-    print("Spawned isolate's package config flag: $packageConfigStr");
-    print("Spawned isolate's loaded package config: $packageConfig");
-    print("Spawned isolate's resolved package path: $resolvedPkg");
-    port.send([packageConfig?.toString(), resolvedPkg?.toString()]);
-  } catch (e, s) {
-    port.send("$e\n$s\n");
-  }
-}
diff --git a/tests/lib_2/isolate/scenarios/bad_resolve_package/bad_resolve_package_test.dart b/tests/lib_2/isolate/scenarios/bad_resolve_package/bad_resolve_package_test.dart
deleted file mode 100644
index e5952295151..00000000000
--- a/tests/lib_2/isolate/scenarios/bad_resolve_package/bad_resolve_package_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Packages=none
-
-import 'dart:io';
-import 'dart:isolate';
-
-main([args, port]) async {
-  if (port != null) {
-    testBadResolvePackage(port);
-    return;
-  }
-  var p = new RawReceivePort();
-  Isolate.spawnUri(Platform.script, [], p.sendPort);
-  p.handler = (msg) {
-    p.close();
-    if (msg is! List) {
-      print(msg.runtimeType);
-      throw "Failure return from spawned isolate:\n\n$msg";
-    }
-    // Expecting a null resolution for inexistent package mapping.
-    if (msg[0] != null) {
-      throw "Bad package config in child isolate: ${msg[0]}\n"
-          "Expected: 'Foo'";
-    }
-    print("SUCCESS");
-  };
-}
-
-testBadResolvePackage(port) async {
-  try {
-    var packageConfigStr = Platform.packageConfig;
-    var packageConfig = await Isolate.packageConfig;
-    var badPackageUri = Uri.parse("package:asdf/qwerty.dart");
-    if (packageConfig != Isolate.packageConfigSync) {
-      throw "Isolate.packageConfig != Isolate.packageConfigSync";
-    }
-    var resolvedPkg = await Isolate.resolvePackageUri(badPackageUri);
-    if (resolvedPkg != Isolate.resolvePackageUriSync(badPackageUri)) {
-      throw "Isolate.resolvePackageUri != Isolate.resolvePackageUriSync";
-    }
-    print("Spawned isolate's package config flag: $packageConfigStr");
-    print("Spawned isolate's loaded package config: $packageConfig");
-    print("Spawned isolate's resolved package path: $resolvedPkg");
-    port.send([resolvedPkg?.toString()]);
-  } catch (e, s) {
-    port.send("$e\n$s\n");
-  }
-}
diff --git a/tests/lib_2/isolate/scenarios/package_data_uri_spec/package_resolve_test.dart b/tests/lib_2/isolate/scenarios/package_data_uri_spec/package_resolve_test.dart
deleted file mode 100644
index b315b40d214..00000000000
--- a/tests/lib_2/isolate/scenarios/package_data_uri_spec/package_resolve_test.dart
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:io';
-import 'dart:isolate';
-
-final packageUriToResolve = "package:foo/bar.dart";
-final packageResolvedUri = "file:///no/such/directory/lib/bar.dart";
-
-final packageConfigJson = """
-{
-  "configVersion": 2,
-  "packages": [
-    {
-      "name": "foo",
-      "rootUri": "file:///no/such/directory",
-      "packageUri": "lib/",
-      "languageVersion": "2.7"
-    }
-  ]
-}
-""";
-
-main([args, port]) async {
-  if (port != null) {
-    testPackageResolution(port);
-    return;
-  }
-  await runTest(packageConfigJson);
-}
-
-Future runTest(String packageConfig) async {
-  final data = Uri.dataFromString(packageConfig);
-  final port = ReceivePort();
-  await Isolate.spawnUri(Platform.script, [], port.sendPort,
-      packageConfig: data);
-  final msg = await port.first;
-  if (msg is! List) {
-    print(msg.runtimeType);
-    throw "Failure return from spawned isolate:\n\n$msg";
-  }
-  if (msg[0] != data.toString()) {
-    throw "Bad package config in child isolate: ${msg[0]}\n"
-        "Expected: $data";
-  }
-  if (msg[1] != packageResolvedUri) {
-    throw "Package path not matching: ${msg[1]}";
-  }
-  print("SUCCESS");
-}
-
-testPackageResolution(port) async {
-  try {
-    var packageConfigStr = Platform.packageConfig;
-    var packageConfig = await Isolate.packageConfig;
-    var resolvedPkg =
-        await Isolate.resolvePackageUri(Uri.parse(packageUriToResolve));
-    print("Spawned isolate's package config flag: $packageConfigStr");
-    print("Spawned isolate's loaded package config: $packageConfig");
-    print("Spawned isolate's resolved package path: $resolvedPkg");
-    port.send([packageConfig?.toString(), resolvedPkg?.toString()]);
-  } catch (e, s) {
-    port.send("$e\n$s\n");
-  }
-}
diff --git a/tests/lib_2/isolate/scenarios/package_relative_root/.dart_tool/package_config.json b/tests/lib_2/isolate/scenarios/package_relative_root/.dart_tool/package_config.json
deleted file mode 100644
index 899389fc1c9..00000000000
--- a/tests/lib_2/isolate/scenarios/package_relative_root/.dart_tool/package_config.json
+++ /dev/null
@@ -1,13 +0,0 @@
-{
-  "configVersion": 2,
-  "packages": [
-    {
-      "name": "foo",
-      "rootUri": "../packages/foo"
-    },
-    {
-      "name": "bar",
-      "rootUri": "../packages/bar"
-    }
-  ]
-}
diff --git a/tests/lib_2/isolate/scenarios/package_relative_root/package_relative_root_test.dart b/tests/lib_2/isolate/scenarios/package_relative_root/package_relative_root_test.dart
deleted file mode 100644
index 03f1e0bc993..00000000000
--- a/tests/lib_2/isolate/scenarios/package_relative_root/package_relative_root_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Packages=none
-
-import 'dart:io';
-import 'dart:isolate';
-
-import "package:bar/bar.dart";
-import "package:foo/foo.dart";
-
-var CONFIG_URI = "package:bar/spawned_packages/";
-
-main([args, port]) async {
-  if (port != null) {
-    testCorrectBarPackage(port);
-    return;
-  }
-  var p = new RawReceivePort();
-  Isolate.spawnUri(Platform.script, [], p.sendPort);
-  p.handler = (msg) {
-    p.close();
-    if (msg is! List) {
-      print(msg.runtimeType);
-      throw "Failure return from spawned isolate:\n\n$msg";
-    }
-    if (msg[0] != "Foo") {
-      throw "Bad package config in child isolate: ${msg[0]}\n"
-          "Expected: 'Foo'";
-    }
-    if (msg[1] != "Bar1") {
-      throw "Package path not matching: ${msg[1]}\n"
-          "Expected: 'Bar1'";
-    }
-    print("SUCCESS");
-  };
-  if (Bar.value != "Bar1") {
-    throw "Spawning isolate package:bar invalid.";
-  }
-  print("Spawned isolate resolved $CONFIG_URI to: "
-      "${await Isolate.resolvePackageUri(Uri.parse(CONFIG_URI))}");
-}
-
-testCorrectBarPackage(port) async {
-  try {
-    var packageConfigStr = Platform.packageConfig;
-    var packageConfig = await Isolate.packageConfig;
-    var resolvedPkg = await Isolate.resolvePackageUri(Uri.parse(CONFIG_URI));
-    print("Spawned isolate's package config flag: $packageConfigStr");
-    print("Spawned isolate's loaded package config: $packageConfig");
-    print("Spawned isolate's resolved package path: $resolvedPkg");
-    port.send([Foo.value, Bar.value]);
-  } catch (e, s) {
-    port.send("$e\n$s\n");
-  }
-}
diff --git a/tests/lib_2/isolate/scenarios/package_relative_root/packages/bar/bar.dart b/tests/lib_2/isolate/scenarios/package_relative_root/packages/bar/bar.dart
deleted file mode 100644
index 93a202c0712..00000000000
--- a/tests/lib_2/isolate/scenarios/package_relative_root/packages/bar/bar.dart
+++ /dev/null
@@ -1,5 +0,0 @@
-
-// @dart = 2.9
-class Bar {
-  static var value = "Bar1";
-}
diff --git a/tests/lib_2/isolate/scenarios/package_relative_root/packages/bar/spawned_packages/bar/bar.dart b/tests/lib_2/isolate/scenarios/package_relative_root/packages/bar/spawned_packages/bar/bar.dart
deleted file mode 100644
index d8e06e07fa5..00000000000
--- a/tests/lib_2/isolate/scenarios/package_relative_root/packages/bar/spawned_packages/bar/bar.dart
+++ /dev/null
@@ -1,5 +0,0 @@
-
-// @dart = 2.9
-class Bar {
-  static var value = "Bar2";
-}
diff --git a/tests/lib_2/isolate/scenarios/package_relative_root/packages/bar/spawned_packages/foo/foo.dart b/tests/lib_2/isolate/scenarios/package_relative_root/packages/bar/spawned_packages/foo/foo.dart
deleted file mode 100644
index 3db42315c0a..00000000000
--- a/tests/lib_2/isolate/scenarios/package_relative_root/packages/bar/spawned_packages/foo/foo.dart
+++ /dev/null
@@ -1,5 +0,0 @@
-
-// @dart = 2.9
-class Foo {
-  static var value = "Foo";
-}
diff --git a/tests/lib_2/isolate/scenarios/package_relative_root/packages/foo/foo.dart b/tests/lib_2/isolate/scenarios/package_relative_root/packages/foo/foo.dart
deleted file mode 100644
index 3db42315c0a..00000000000
--- a/tests/lib_2/isolate/scenarios/package_relative_root/packages/foo/foo.dart
+++ /dev/null
@@ -1,5 +0,0 @@
-
-// @dart = 2.9
-class Foo {
-  static var value = "Foo";
-}
diff --git a/tests/lib_2/isolate/scenarios/package_relative_spec/.dart_tool/package_config.json b/tests/lib_2/isolate/scenarios/package_relative_spec/.dart_tool/package_config.json
deleted file mode 100644
index 96d8ed709f0..00000000000
--- a/tests/lib_2/isolate/scenarios/package_relative_spec/.dart_tool/package_config.json
+++ /dev/null
@@ -1,13 +0,0 @@
-{
-  "configVersion": 2,
-  "packages": [
-    {
-      "name": "foo",
-      "rootUri": "../foo_package"
-    },
-    {
-      "name": "bar",
-      "rootUri": "../bar1_package"
-    }
-  ]
-}
diff --git a/tests/lib_2/isolate/scenarios/package_relative_spec/bar1_package/bar.dart b/tests/lib_2/isolate/scenarios/package_relative_spec/bar1_package/bar.dart
deleted file mode 100644
index 93a202c0712..00000000000
--- a/tests/lib_2/isolate/scenarios/package_relative_spec/bar1_package/bar.dart
+++ /dev/null
@@ -1,5 +0,0 @@
-
-// @dart = 2.9
-class Bar {
-  static var value = "Bar1";
-}
diff --git a/tests/lib_2/isolate/scenarios/package_relative_spec/bar1_package/package.config b/tests/lib_2/isolate/scenarios/package_relative_spec/bar1_package/package.config
deleted file mode 100644
index b72b9b325f2..00000000000
--- a/tests/lib_2/isolate/scenarios/package_relative_spec/bar1_package/package.config
+++ /dev/null
@@ -1,13 +0,0 @@
-{
-  "configVersion": 2,
-  "packages": [
-    {
-      "name": "foo",
-      "rootUri": "../foo_package"
-    },
-    {
-      "name": "bar",
-      "rootUri": "../bar2_package"
-    }
-  ]
-}
diff --git a/tests/lib_2/isolate/scenarios/package_relative_spec/bar2_package/bar.dart b/tests/lib_2/isolate/scenarios/package_relative_spec/bar2_package/bar.dart
deleted file mode 100644
index d8e06e07fa5..00000000000
--- a/tests/lib_2/isolate/scenarios/package_relative_spec/bar2_package/bar.dart
+++ /dev/null
@@ -1,5 +0,0 @@
-
-// @dart = 2.9
-class Bar {
-  static var value = "Bar2";
-}
diff --git a/tests/lib_2/isolate/scenarios/package_relative_spec/foo_package/foo.dart b/tests/lib_2/isolate/scenarios/package_relative_spec/foo_package/foo.dart
deleted file mode 100644
index 3db42315c0a..00000000000
--- a/tests/lib_2/isolate/scenarios/package_relative_spec/foo_package/foo.dart
+++ /dev/null
@@ -1,5 +0,0 @@
-
-// @dart = 2.9
-class Foo {
-  static var value = "Foo";
-}
diff --git a/tests/lib_2/isolate/scenarios/package_relative_spec/package_relative_spec_test.dart b/tests/lib_2/isolate/scenarios/package_relative_spec/package_relative_spec_test.dart
deleted file mode 100644
index c8c7ea6d769..00000000000
--- a/tests/lib_2/isolate/scenarios/package_relative_spec/package_relative_spec_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Packages=none
-
-import 'dart:io';
-import 'dart:isolate';
-
-import "package:foo/foo.dart";
-import "package:bar/bar.dart";
-
-var CONFIG_URI = "package:bar/package.config";
-
-main([args, port]) async {
-  if (port != null) {
-    testCorrectBarPackage(port);
-    return;
-  }
-  var p = new RawReceivePort();
-  Isolate.spawnUri(Platform.script, [], p.sendPort,
-      packageConfig: Uri.parse(CONFIG_URI));
-  p.handler = (msg) {
-    p.close();
-    if (msg is! List) {
-      print(msg.runtimeType);
-      throw "Failure return from spawned isolate:\n\n$msg";
-    }
-    if (msg[0] != "Foo") {
-      throw "Bad package config in child isolate: ${msg[0]}\n"
-          "Expected: 'Foo'";
-    }
-    if (msg[1] != "Bar2") {
-      throw "Package path not matching: ${msg[1]}\n"
-          "Expected: 'Bar2'";
-    }
-    print("SUCCESS");
-  };
-  if (Bar.value != "Bar1") {
-    throw "Spawning isolate package:bar invalid.";
-  }
-  print("Spawned isolate resolved $CONFIG_URI to: "
-      "${await Isolate.resolvePackageUri(Uri.parse(CONFIG_URI))}");
-}
-
-testCorrectBarPackage(port) async {
-  try {
-    var packageConfigStr = Platform.packageConfig;
-    var packageConfig = await Isolate.packageConfig;
-    var resolvedPkg = await Isolate.resolvePackageUri(Uri.parse(CONFIG_URI));
-    print("Spawned isolate's package config flag: $packageConfigStr");
-    print("Spawned isolate's loaded package config: $packageConfig");
-    print("Spawned isolate's resolved package path: $resolvedPkg");
-    port.send([Foo.value, Bar.value]);
-  } catch (e, s) {
-    port.send("$e\n$s\n");
-  }
-}
diff --git a/tests/lib_2/isolate/scenarios/short_package/.dart_tool/package_config.json b/tests/lib_2/isolate/scenarios/short_package/.dart_tool/package_config.json
deleted file mode 100644
index a806459b6be..00000000000
--- a/tests/lib_2/isolate/scenarios/short_package/.dart_tool/package_config.json
+++ /dev/null
@@ -1,9 +0,0 @@
-{
-  "configVersion": 2,
-  "packages": [
-    {
-      "name": "flu",
-      "rootUri": "../flu_package"
-    }
-  ]
-}
diff --git a/tests/lib_2/isolate/scenarios/short_package/flu_package/flu.dart b/tests/lib_2/isolate/scenarios/short_package/flu_package/flu.dart
deleted file mode 100644
index 5fd00ef76fd..00000000000
--- a/tests/lib_2/isolate/scenarios/short_package/flu_package/flu.dart
+++ /dev/null
@@ -1,5 +0,0 @@
-
-// @dart = 2.9
-class Flu {
-  static var value = "Flu";
-}
diff --git a/tests/lib_2/isolate/scenarios/short_package/flu_package/flu.text b/tests/lib_2/isolate/scenarios/short_package/flu_package/flu.text
deleted file mode 100644
index d9d3a9a899e..00000000000
--- a/tests/lib_2/isolate/scenarios/short_package/flu_package/flu.text
+++ /dev/null
@@ -1 +0,0 @@
-Bar
\ No newline at end of file
diff --git a/tests/lib_2/isolate/scenarios/short_package/short_package_test.dart b/tests/lib_2/isolate/scenarios/short_package/short_package_test.dart
deleted file mode 100644
index 66cc30cdb34..00000000000
--- a/tests/lib_2/isolate/scenarios/short_package/short_package_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Packages=none
-
-import 'dart:io';
-import 'dart:isolate';
-
-import "package:flu/flu.dart";
-
-var PACKAGE_FLU = "package:flu";
-var FLU_TEXT = "flu.text";
-
-testShortResolution(package_uri) async {
-  var fluPackage = await Isolate.resolvePackageUri(Uri.parse(package_uri));
-  print("Resolved $package_uri to $fluPackage");
-  var fluText = fluPackage.resolve(FLU_TEXT);
-  print("Resolved $FLU_TEXT from $package_uri to $fluText");
-  var fluFile = new File.fromUri(fluText);
-  var fluString = await fluFile.readAsString();
-  if (fluString != "Bar") {
-    throw "Contents of $FLU_TEXT not matching.\n"
-        "Got: $fluString\n"
-        "Expected: Bar";
-  }
-}
-
-main([args, port]) async {
-  if (Flu.value != "Flu") {
-    throw "Import of wrong Flu package.";
-  }
-//  await testShortResolution(PACKAGE_FLU);
-  await testShortResolution(PACKAGE_FLU + "/");
-  await testShortResolution(PACKAGE_FLU + "/abc.def");
-  print("SUCCESS");
-}
diff --git a/tests/lib_2/isolate/send_private_test.dart b/tests/lib_2/isolate/send_private_test.dart
deleted file mode 100644
index f265187d5ef..00000000000
--- a/tests/lib_2/isolate/send_private_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:isolate";
-import "package:expect/expect.dart";
-
-class _Private {
-  String data;
-  _Private(this.data);
-}
-
-void child(message) {
-  print("Got message: $message");
-  SendPort replyPort = message[0];
-  _Private object = message[1];
-  Expect.isTrue(object is _Private);
-  Expect.equals("XYZ", object.data);
-  replyPort.send(object);
-}
-
-void main() {
-  var port;
-  port = new RawReceivePort((message) {
-    print("Got reply: $message");
-    Expect.isTrue(message is _Private);
-    Expect.equals("XYZ", message.data);
-    port.close();
-  });
-
-  Isolate.spawn(child, [port.sendPort, new _Private("XYZ")]);
-}
diff --git a/tests/lib_2/isolate/simd_vectors_message_test.dart b/tests/lib_2/isolate/simd_vectors_message_test.dart
deleted file mode 100644
index fedd5a0b9be..00000000000
--- a/tests/lib_2/isolate/simd_vectors_message_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// See https://github.com/dart-lang/sdk/issues/46793
-
-// @dart = 2.9
-
-import "dart:async";
-import "dart:isolate";
-import "dart:typed_data";
-
-import "package:async_helper/async_helper.dart";
-import "package:expect/expect.dart";
-
-main() {
-  asyncStart();
-  var port;
-  port = new RawReceivePort((message) {
-    print("Receive $message");
-
-    var int32x4 = message[0] as Int32x4;
-    Expect.equals(-1, int32x4.x);
-    Expect.equals(0, int32x4.y);
-    Expect.equals(1, int32x4.z);
-    Expect.equals(2, int32x4.w);
-
-    var float32x4 = message[1] as Float32x4;
-    Expect.equals(-2.5, float32x4.x);
-    Expect.equals(0.0, float32x4.y);
-    Expect.equals(1.25, float32x4.z);
-    Expect.equals(2.125, float32x4.w);
-
-    var float64x2 = message[2] as Float64x2;
-    Expect.equals(16.5, float64x2.x);
-    Expect.equals(-32.25, float64x2.y);
-
-    port.close();
-    asyncEnd();
-  });
-
-
-  var list = [
-    new Int32x4(-1, 0, 1, 2),
-    new Float32x4(-2.5, 0.0, 1.25, 2.125),
-    new Float64x2(16.5, -32.25),
-  ];
-  print("Send $list");
-  port.sendPort.send(list);
-}
diff --git a/tests/lib_2/isolate/simple_message_test.dart b/tests/lib_2/isolate/simple_message_test.dart
deleted file mode 100644
index 6cd8da0b5dc..00000000000
--- a/tests/lib_2/isolate/simple_message_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test program for testing that isolates are spawned.
-
-library IsolateNegativeTest;
-
-import "package:expect/expect.dart";
-import 'dart:isolate';
-import "package:async_helper/async_helper.dart";
-
-void entry(SendPort replyTo) {
-  var message = "foo";
-  message = "bar"; // //# 01: runtime error
-  replyTo.send(message);
-}
-
-main() {
-  asyncStart();
-  ReceivePort response = new ReceivePort();
-  Isolate.spawn(entry, response.sendPort);
-  response.first.then((message) {
-    Expect.equals("foo", message);
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/isolate/spawn_function_custom_class_test.dart b/tests/lib_2/isolate/spawn_function_custom_class_test.dart
deleted file mode 100644
index fbbdf697ad8..00000000000
--- a/tests/lib_2/isolate/spawn_function_custom_class_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Create a user-defined class in a new isolate.
-//
-// Regression test for vm bug 2235: We were forgetting to finalize
-// classes in new isolates started using the v2 api.
-
-library spawn_tests;
-
-import 'dart:isolate';
-import 'package:expect/expect.dart';
-
-class MyClass {
-  final myVar = 'there';
-  myFunc(msg) {
-    return '$msg $myVar';
-  }
-}
-
-isolateEntryPoint(args) {
-  final reply = args[1];
-  final msg = args[0];
-  reply.send('re: ${new MyClass().myFunc(msg)}');
-}
-
-Future<void> main([args, port]) async {
-  // message - reply chain'
-  final exitPort = ReceivePort();
-  final replyPort = ReceivePort();
-
-  Isolate.spawn(isolateEntryPoint, ['hi', replyPort.sendPort],
-      onExit: exitPort.sendPort);
-
-  replyPort.listen((msg) {
-    replyPort.close();
-    Expect.equals(msg, 're: hi there');
-  });
-
-  // Explicitly await spawned isolate exit to enforce main isolate not
-  // completing (and the stand-alone runtime exiting) before the spawned
-  // isolate is done.
-  await exitPort.first;
-}
diff --git a/tests/lib_2/isolate/spawn_function_test.dart b/tests/lib_2/isolate/spawn_function_test.dart
deleted file mode 100644
index 5071ffadaf8..00000000000
--- a/tests/lib_2/isolate/spawn_function_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Example of spawning an isolate from a function.
-library spawn_tests;
-
-import 'dart:isolate';
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-isolateEntryPoint(args) {
-  var msg = args[0];
-  var sendPort = args[1];
-  sendPort.send('re: $msg');
-}
-
-Future<void> main([args, port]) async {
-  // message - reply chain
-  const String debugName = 'spawnedIsolate';
-
-  ReceivePort port = new ReceivePort();
-  asyncStart();
-  port.listen((msg) {
-    port.close();
-    Expect.equals(msg, 're: hi');
-    asyncEnd();
-  });
-
-  // Start new isolate; paused so it's alive till we read the debugName.
-  // If the isolate runs to completion, the isolate might get cleaned up
-  // and debugName might be null.
-  final isolate = await Isolate.spawn(isolateEntryPoint, ['hi', port.sendPort],
-      paused: true, debugName: debugName);
-
-  Expect.equals(isolate.debugName, debugName);
-  isolate.resume(isolate.pauseCapability);
-}
diff --git a/tests/lib_2/isolate/spawn_generic_test.dart b/tests/lib_2/isolate/spawn_generic_test.dart
deleted file mode 100644
index 7305917ff1f..00000000000
--- a/tests/lib_2/isolate/spawn_generic_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that Isolate.spawn is generic.
-library spawn_generic;
-
-import "dart:isolate";
-import "dart:async";
-
-import "package:async_helper/async_helper.dart";
-
-void isomain(num args) {
-  print(args);
-  // All is well. No throwing.
-}
-
-int _count = 0;
-void enter() {
-  asyncStart();
-  _count++;
-}
-
-bool exit() {
-  asyncEnd();
-  return --_count == 0;
-}
-
-main() {
-  var remotePort = new RawReceivePort();
-  remotePort.handler = (m) {
-    if (m == null) {
-      if (exit()) remotePort.close();
-    } else {
-      List list = m;
-      throw new AsyncError(m[0], new StackTrace.fromString(m[1]));
-    }
-  };
-  var port = remotePort.sendPort;
-
-  // Explicit type works.
-  enter();
-  Isolate.spawn<int>(isomain, 42, onExit: port, onError: port);
-  enter();
-  Isolate.spawn<num>(isomain, 42, onExit: port, onError: port);
-  enter();
-  Isolate.spawn<num>(isomain, 1.2, onExit: port, onError: port);
-  enter();
-  Isolate.spawn<double>(isomain, 1.2, onExit: port, onError: port);
-  enter();
-  Isolate.spawn<int>(isomain, null, onExit: port, onError: port);
-
-  // Inference gets it right.
-  enter();
-  Isolate.spawn(isomain, 42, onExit: port, onError: port);
-  enter();
-  Isolate.spawn(isomain, 1.2, onExit: port, onError: port);
-  enter();
-  Isolate.spawn(isomain, null, onExit: port, onError: port);
-}
diff --git a/tests/lib_2/isolate/spawn_uri__package_uri__test.dart b/tests/lib_2/isolate/spawn_uri__package_uri__test.dart
deleted file mode 100644
index c06ea406202..00000000000
--- a/tests/lib_2/isolate/spawn_uri__package_uri__test.dart
+++ /dev/null
@@ -1,148 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:io';
-
-import 'package:expect/expect.dart';
-import 'package:path/path.dart' as path;
-
-final executable = Platform.executable;
-
-main() async {
-  // Run the Dart VM with or without:
-  //     --packages=<packages|package_config>
-  final futures = <Future>[];
-  for (final runWithPackagesArg in const [true, false]) {
-    // Run the isolate with or without
-    //    Isolate.spawnUri(..., packageConfig: <packages|package_config>)
-    print('TEST runWithPackagesArg = $runWithPackagesArg ');
-    for (final spawnWithPackageConfig in const [true, false]) {
-      print('TEST spawnWithPackageConfig = $spawnWithPackageConfig ');
-      final bool checkForResolveUri =
-          runWithPackagesArg || !spawnWithPackageConfig;
-      for (final optionalPackageUri in const [true, false]) {
-        print('TEST optionalPackageUri = $optionalPackageUri');
-        futures.add(runPackageConfigTest(runWithPackagesArg,
-            spawnWithPackageConfig, optionalPackageUri, checkForResolveUri));
-      }
-    }
-  }
-  await Future.wait(futures);
-}
-
-Future runPackageConfigTest(bool withPackagesArg, bool spawnWithArg,
-    bool optionalPackageUri, bool checkForResolveUri) async {
-  await withApplicationDirAndDotDartToolPackageConfig(
-      (String tempDir, String packageJson, String mainFile) async {
-    final args = [if (withPackagesArg) '--packages=$packageJson', mainFile];
-    await run(executable, args);
-  }, spawnWithArg, optionalPackageUri, checkForResolveUri);
-}
-
-Future withApplicationDirAndDotDartToolPackageConfig(
-    Future fn(String tempDir, String packageJson, String mainFile),
-    bool spawnWithArg,
-    bool optionalPackageUri,
-    bool checkForResolveUri) async {
-  await withTempDir((String tempDir) async {
-    // Setup ".dart_tool/package_config.json"
-    final dotDartToolDir = path.join(tempDir, '.dart_tool');
-    await Directory(dotDartToolDir).create();
-    final packageConfigJsonFile = path.join(
-        dotDartToolDir, spawnWithArg ? 'baz.packages' : 'package_config.json');
-    await File(packageConfigJsonFile)
-        .writeAsString(buildPackageConfig('foo', optionalPackageUri));
-
-    // Setup actual application
-    final mainFile = path.join(tempDir, 'main.dart');
-    final childIsolateFile = path.join(tempDir, 'child_isolate.dart');
-    final importUri = 'package:foo/child_isolate.dart';
-    await File(childIsolateFile).writeAsString(buildChildIsolate());
-    await File(mainFile).writeAsString(buildMainIsolate(
-        importUri,
-        spawnWithArg ? packageConfigJsonFile : null,
-        checkForResolveUri ? childIsolateFile : null));
-
-    await fn(tempDir, packageConfigJsonFile, mainFile);
-  });
-}
-
-Future withTempDir(Future fn(String dir)) async {
-  final dir = await Directory.systemTemp.createTemp('spawn_uri');
-  try {
-    await fn(dir.absolute.path);
-  } finally {
-    await dir.delete(recursive: true);
-  }
-}
-
-Future<ProcessResult> run(String executable, List<String> args,
-    {String cwd}) async {
-  print('Running $executable ${args.join(' ')}');
-  final String workingDirectory = cwd ?? Directory.current.absolute.path;
-  final result = await Process.run(executable, ['--trace-loading', ...args],
-      workingDirectory: workingDirectory);
-  print('exitCode:\n${result.exitCode}');
-  print('stdout:\n${result.stdout}');
-  print('stdout:\n${result.stderr}');
-  Expect.equals(0, result.exitCode);
-  return result;
-}
-
-String buildDotPackages(String packageName) => '$packageName:.';
-
-String buildPackageConfig(String packageName, bool optionalPackageUri) => '''
-{
-  "configVersion": 2,
-  "packages": [
-    {
-      "name": "$packageName",
-      "rootUri": "../"
-      ${optionalPackageUri ? ', "packageUri": "./"' : ''}
-    }
-  ]
-}
-''';
-
-String buildChildIsolate() => '''
-  import 'dart:isolate';
-
-  main(List<String> args, SendPort message) {
-    message.send('child isolate is done');
-  }
-''';
-
-String buildMainIsolate(
-        String spawnUri, String packageConfigUri, String childIsolatePath) =>
-    '''
-  import 'dart:isolate';
-  import 'dart:io' as io;
-
-  main(List<String> args) async {
-    io.exitCode = 1;
-
-    final uri = Uri.parse('$spawnUri');
-    final resolvedUri = await Isolate.resolvePackageUri(uri);
-    if ("""\${resolvedUri?.toFilePath()}""" != r"""$childIsolatePath""") {
-      throw 'Could not Isolate.resolvePackageUri(uri).';
-    }
-
-    final rp = ReceivePort();
-    final isolateArgs = <String>['a'];
-    await Isolate.spawnUri(
-        uri,
-        isolateArgs,
-        rp.sendPort,
-        packageConfig: ${packageConfigUri != null ? 'Uri.file(r"$packageConfigUri")' : 'null'});
-    final childIsolateMessage = await rp.first;
-    if (childIsolateMessage != 'child isolate is done') {
-      throw 'Did not receive correct message from child isolate.';
-    }
-
-    // Test was successful.
-    io.exitCode = 0;
-  }
-''';
diff --git a/tests/lib_2/isolate/spawn_uri_child_isolate.dart b/tests/lib_2/isolate/spawn_uri_child_isolate.dart
deleted file mode 100644
index d73d24431d3..00000000000
--- a/tests/lib_2/isolate/spawn_uri_child_isolate.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Child isolate code to be spawned from a URI to this file.
-library SpawnUriChildIsolate;
-
-void main(List<String> args, replyTo) {
-  var data = args[0];
-  replyTo.send('re: $data');
-}
diff --git a/tests/lib_2/isolate/spawn_uri_exported_main.dart b/tests/lib_2/isolate/spawn_uri_exported_main.dart
deleted file mode 100644
index 6878f6e476f..00000000000
--- a/tests/lib_2/isolate/spawn_uri_exported_main.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-
-// @dart = 2.9
-export "spawn_uri_exported_main_lib.dart";
-
-maine() {
-  print("This is not the maine you are looking for.");
-}
diff --git a/tests/lib_2/isolate/spawn_uri_exported_main_lib.dart b/tests/lib_2/isolate/spawn_uri_exported_main_lib.dart
deleted file mode 100644
index 1410a464cae..00000000000
--- a/tests/lib_2/isolate/spawn_uri_exported_main_lib.dart
+++ /dev/null
@@ -1,8 +0,0 @@
-
-// @dart = 2.9
-library spawn_uri_exported_main_lib;
-
-main(args, msg) {
-  print("From main!");
-  msg.send(50);
-}
diff --git a/tests/lib_2/isolate/spawn_uri_exported_main_test.dart b/tests/lib_2/isolate/spawn_uri_exported_main_test.dart
deleted file mode 100644
index d378cb09d08..00000000000
--- a/tests/lib_2/isolate/spawn_uri_exported_main_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "dart:isolate";
-import "package:expect/expect.dart";
-
-main() {
-  print("Spawning isolate.");
-  var t = new Timer(new Duration(seconds: 30), () {
-    // it might take some time for new isolate to get spawned from source since
-    // it needs to be compiled first.
-    Expect.fail("Isolate was not spawned successfully.");
-  });
-  var rp = new RawReceivePort();
-  rp.handler = (msg) {
-    print("Spawned main called.");
-    Expect.equals(msg, 50);
-    rp.close();
-  };
-  Isolate
-      .spawnUri(Uri.parse("spawn_uri_exported_main.dart"), null, rp.sendPort)
-      .then((_) {
-    print("Loaded");
-    t.cancel();
-  });
-}
diff --git a/tests/lib_2/isolate/spawn_uri_fail_test.dart b/tests/lib_2/isolate/spawn_uri_fail_test.dart
deleted file mode 100644
index 45b39bad77a..00000000000
--- a/tests/lib_2/isolate/spawn_uri_fail_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:io";
-import "dart:isolate";
-import "package:expect/expect.dart";
-
-main() async {
-  var pkgRoot = Uri.parse("file:///no/such/directory/");
-  var pkgConfig = Uri.parse("file:///no/such/.packages");
-  try {
-    var i = await Isolate.spawnUri(Platform.script, [], null,
-        packageRoot: pkgRoot, packageConfig: pkgConfig);
-  } catch (e) {
-    print(e);
-    Expect.isTrue(e is ArgumentError);
-  }
-  try {
-    var i = await Isolate.spawnUri(Platform.script, [], null,
-        packageRoot: pkgRoot, automaticPackageResolution: true);
-  } catch (e) {
-    print(e);
-    Expect.isTrue(e is ArgumentError);
-  }
-  try {
-    var i = await Isolate.spawnUri(Platform.script, [], null,
-        packageConfig: pkgConfig, automaticPackageResolution: true);
-  } catch (e) {
-    print(e);
-    Expect.isTrue(e is ArgumentError);
-  }
-  try {
-    var i = await Isolate.spawnUri(Platform.script, [], null,
-        packageRoot: pkgRoot,
-        packageConfig: pkgConfig,
-        automaticPackageResolution: true);
-  } catch (e) {
-    print(e);
-    Expect.isTrue(e is ArgumentError);
-  }
-}
diff --git a/tests/lib_2/isolate/spawn_uri_missing_from_isolate_test.dart b/tests/lib_2/isolate/spawn_uri_missing_from_isolate_test.dart
deleted file mode 100644
index dfd030584df..00000000000
--- a/tests/lib_2/isolate/spawn_uri_missing_from_isolate_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Tests that Isolate.spawnUri completes with an error when the given URI
-/// doesn't resolve to an existing resource.
-///
-/// This test is similar to spawn_uri_missing_test.dart, but tests what happens
-/// when Isolate.spawnUri is called from an a spawned isolate.  In dart2js,
-/// these two situations are different.
-library test.isolate.spawn_uri_missing_from_isolate_test;
-
-import 'dart:isolate';
-
-import 'dart:async';
-
-import 'package:async_helper/async_helper.dart';
-
-import 'spawn_uri_missing_test.dart';
-
-const String SUCCESS = 'Test worked.';
-
-void isolate(SendPort port) {
-  doTest().then((_) => port.send(SUCCESS),
-      onError: (error, stack) => port.send('Test failed: $error\n$stack'));
-}
-
-main() {
-  ReceivePort port = new ReceivePort();
-  Isolate.spawn(isolate, port.sendPort);
-  Completer completer = new Completer();
-  port.first.then((message) {
-    if (message == SUCCESS) {
-      completer.complete(null);
-    } else {
-      completer.completeError(message);
-    }
-  });
-
-  asyncTest(() => completer.future);
-}
diff --git a/tests/lib_2/isolate/spawn_uri_missing_test.dart b/tests/lib_2/isolate/spawn_uri_missing_test.dart
deleted file mode 100644
index 99e70b02e42..00000000000
--- a/tests/lib_2/isolate/spawn_uri_missing_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Tests that Isolate.spanUri completes with an error when the given URI
-/// doesn't resolve to an existing resource.
-library test.isolate.spawn_uri_missing_test;
-
-import 'dart:isolate';
-
-import 'dart:async';
-
-import 'package:async_helper/async_helper.dart';
-
-const UNEXPECTED_MESSAGE = 'Created isolate from missing file.';
-
-Future doTest() {
-  return Isolate
-      .spawnUri(Uri.base.resolve('no_such_file'), [], null)
-      .then((Isolate isolate) {
-    throw UNEXPECTED_MESSAGE;
-  }).catchError((error) {
-    if (error == UNEXPECTED_MESSAGE) throw error;
-    print('An error was thrown as expected');
-    return null;
-  });
-}
-
-main() {
-  asyncTest(doTest);
-}
diff --git a/tests/lib_2/isolate/spawn_uri_multi_test.dart b/tests/lib_2/isolate/spawn_uri_multi_test.dart
deleted file mode 100644
index 7d222841b63..00000000000
--- a/tests/lib_2/isolate/spawn_uri_multi_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Negative test to make sure that we are reaching all assertions.
-library spawn_tests;
-
-import 'dart:isolate';
-import 'package:async_helper/async_minitest.dart';
-
-/* Dummy import so multi-test copies the file.
-import 'spawn_uri_child_isolate.dart';
-*/
-
-main() {
-  test('isolate fromUri - negative test', () {
-    ReceivePort port = new ReceivePort();
-    port.first.then(expectAsync((msg) {
-      String expectedMessage = 're: hi';
-      // Should be hi, not hello.
-      expectedMessage = 're: hello'; //# 01: runtime error
-      expect(msg, equals(expectedMessage));
-    }));
-
-    Isolate.spawnUri(
-        Uri.parse('spawn_uri_child_isolate.dart'), ['hi'], port.sendPort);
-  });
-}
diff --git a/tests/lib_2/isolate/spawn_uri_nested_child1_vm_isolate.dart b/tests/lib_2/isolate/spawn_uri_nested_child1_vm_isolate.dart
deleted file mode 100644
index 3fc1a33dddf..00000000000
--- a/tests/lib_2/isolate/spawn_uri_nested_child1_vm_isolate.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Example of nested spawning of isolates from a URI
-// Note: the following comment is used by test.dart to additionally compile the
-// other isolate's code.
-library NestedSpawnUriChild1Library;
-
-import 'dart:isolate';
-
-main(List<String> args, message) {
-  ReceivePort port2 = new ReceivePort();
-  port2.listen((msg) {
-    if (msg != "re: hi") throw "Bad response: $msg";
-    port2.close();
-  });
-
-  Isolate.spawnUri(Uri.parse('spawn_uri_nested_child2_vm_isolate.dart'), ['hi'],
-      port2.sendPort);
-
-  var data = message[0];
-  var replyTo = message[1];
-  replyTo.send(data);
-}
diff --git a/tests/lib_2/isolate/spawn_uri_nested_child2_vm_isolate.dart b/tests/lib_2/isolate/spawn_uri_nested_child2_vm_isolate.dart
deleted file mode 100644
index 93df77c1262..00000000000
--- a/tests/lib_2/isolate/spawn_uri_nested_child2_vm_isolate.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Child isolate code to be spawned from a URI to this file.
-library NestedSpawnUriChild2Library;
-
-import 'dart:isolate';
-
-void main(List<String> args, SendPort replyTo) {
-  var data = args[0];
-  replyTo.send('re: $data');
-}
diff --git a/tests/lib_2/isolate/spawn_uri_nested_vm_test.dart b/tests/lib_2/isolate/spawn_uri_nested_vm_test.dart
deleted file mode 100644
index facefde9964..00000000000
--- a/tests/lib_2/isolate/spawn_uri_nested_vm_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Example of nested spawning of isolates from a URI
-library NestedSpawnUriLibrary;
-
-import 'dart:isolate';
-import 'package:async_helper/async_minitest.dart';
-
-main() {
-  test('isolate fromUri - nested send and reply', () async {
-    final port = ReceivePort();
-    final exitPort = ReceivePort();
-    Isolate.spawnUri(
-        Uri.parse('spawn_uri_nested_child1_vm_isolate.dart'),
-        [],
-        [
-          [1, 2],
-          port.sendPort
-        ],
-        onExit: exitPort.sendPort);
-    port.first.then(expectAsync((result) => print(result)));
-    // ensure main isolate doesn't exit before child isolate exits
-    await exitPort.first;
-  });
-}
diff --git a/tests/lib_2/isolate/spawn_uri_test.dart b/tests/lib_2/isolate/spawn_uri_test.dart
deleted file mode 100644
index e85fbc6e4d2..00000000000
--- a/tests/lib_2/isolate/spawn_uri_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Example of spawning an isolate from a URI
-library spawn_tests;
-
-import 'dart:isolate';
-import 'package:async_helper/async_minitest.dart';
-
-main() {
-  test('isolate fromUri - send and reply', () async {
-    const String debugName = 'spawnedIsolate';
-
-    final exitPort = ReceivePort();
-
-    final port = new ReceivePort();
-    port.listen(expectAsync((msg) {
-      expect(msg, equals('re: hi'));
-      port.close();
-    }));
-
-    // Start new isolate; paused so it's alive till we read the debugName.
-    // If the isolate runs to completion, the isolate might get cleaned up
-    // and debugName might be null.
-    final isolate = await Isolate.spawnUri(
-        Uri.parse('spawn_uri_child_isolate.dart'), ['hi'], port.sendPort,
-        paused: true, debugName: debugName, onExit: exitPort.sendPort);
-
-    expect(isolate.debugName, debugName);
-
-    isolate.resume(isolate.pauseCapability);
-
-    // Explicitly await spawned isolate exit to enforce main isolate not
-    // completing (and the stand-alone runtime exiting) before the spawned
-    // isolate is done.
-    await exitPort.first;
-  });
-}
diff --git a/tests/lib_2/isolate/spawn_uri_type_prefix_optimization_test.dart b/tests/lib_2/isolate/spawn_uri_type_prefix_optimization_test.dart
deleted file mode 100644
index 7a9de6f5672..00000000000
--- a/tests/lib_2/isolate/spawn_uri_type_prefix_optimization_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "dart:io";
-import "dart:isolate";
-
-import "package:expect/expect.dart";
-
-class Unsendable {}
-
-Future<void> main(args, message) async {
-  if (args.contains("child")) {
-    var sendPort = message as SendPort;
-
-    var bad = <String, Unsendable>{"a": null, "b": null};
-    Expect.throwsArgumentError(() => sendPort.send(bad));
-
-    var good = bad.keys.toList();
-    sendPort.send(good);
-
-    sendPort.send("done");
-    return;
-  }
-
-  final receivePort = RawReceivePort();
-  receivePort.handler = (msg) {
-    if (msg == "done") receivePort.close();
-  };
-  await Isolate.spawnUri(
-      Platform.script, <String>["child"], receivePort.sendPort,
-      errorsAreFatal: true);
-}
diff --git a/tests/lib_2/isolate/spawn_uri_types_test.dart b/tests/lib_2/isolate/spawn_uri_types_test.dart
deleted file mode 100644
index 8dd1e479196..00000000000
--- a/tests/lib_2/isolate/spawn_uri_types_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:async";
-import "dart:io";
-import "dart:isolate";
-
-import "package:expect/expect.dart";
-
-class Foo {}
-
-Type getType<T>() => T;
-
-Future<void> main(args, message) async {
-  if (args.contains("child")) {
-    var sendPort = message as SendPort;
-
-    sendPort.send(getType<void>());
-    sendPort.send(Never);
-    sendPort.send(Object);
-    sendPort.send(dynamic);
-
-    sendPort.send(Null);
-    sendPort.send(bool);
-
-    sendPort.send(int);
-    sendPort.send(double);
-    sendPort.send(num);
-
-    sendPort.send(String);
-
-    sendPort.send(List);
-    sendPort.send(Map);
-    sendPort.send(Set);
-
-    sendPort.send(SendPort);
-    sendPort.send(Capability);
-
-    sendPort.send(TransferableTypedData);
-
-    Expect.throwsArgumentError(() => sendPort.send(Foo));
-    Expect.throwsArgumentError(() => sendPort.send(Socket));
-    Expect.throwsArgumentError(() => sendPort.send(getType<List<Foo>>()));
-
-    sendPort.send("done");
-    return;
-  }
-
-  final receivePort = RawReceivePort();
-  receivePort.handler = (msg) {
-    if (msg == "done") receivePort.close();
-  };
-  await Isolate.spawnUri(
-      Platform.script, <String>["child"], receivePort.sendPort,
-      errorsAreFatal: true);
-}
diff --git a/tests/lib_2/isolate/spawn_uri_vm_test.dart b/tests/lib_2/isolate/spawn_uri_vm_test.dart
deleted file mode 100644
index 429b62b9b2c..00000000000
--- a/tests/lib_2/isolate/spawn_uri_vm_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Example of spawning an isolate from a URI
-library spawn_tests;
-
-import 'dart:isolate';
-import 'package:async_helper/async_minitest.dart';
-
-main() {
-  test('isolate fromUri - send and reply', () {
-    ReceivePort port = new ReceivePort();
-    port.first.then(expectAsync((msg) {
-      expect(msg, equals('re: hi'));
-    }));
-
-    Isolate.spawnUri(
-        Uri.parse('spawn_uri_child_isolate.dart'), ['hi'], port.sendPort);
-  });
-}
diff --git a/tests/lib_2/isolate/stacktrace_message_test.dart b/tests/lib_2/isolate/stacktrace_message_test.dart
deleted file mode 100644
index a8e269f9eff..00000000000
--- a/tests/lib_2/isolate/stacktrace_message_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:isolate';
-
-import "package:expect/expect.dart";
-
-// Test that StackTrace objects can be sent between isolates spawned from
-// the same isolate using Isolate.spawn.
-
-void main() async {
-  final reply = ReceivePort();
-  Isolate.spawn(runTest, reply.sendPort);
-  final pair = await reply.first;
-  final stack = pair[0] as StackTrace;
-  final stackString = pair[1] as String;
-  Expect.isNotNull(stack);
-  Expect.equals(stackString, "$stack");
-}
-
-runTest(SendPort sendport) {
-  try {
-    throw 'sorry';
-  } catch (e, stack) {
-    sendport.send([stack, "$stack"]);
-  }
-}
diff --git a/tests/lib_2/isolate/start_paused_test.dart b/tests/lib_2/isolate/start_paused_test.dart
deleted file mode 100644
index 5a36249d75d..00000000000
--- a/tests/lib_2/isolate/start_paused_test.dart
+++ /dev/null
@@ -1,81 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library start_paused_test;
-
-import "dart:isolate";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-void isomain(SendPort p) {
-  p.send("DONE");
-}
-
-void notyet(_) {
-  throw "NOT YET";
-}
-
-void main() {
-  asyncStart();
-  test1();
-  test2();
-  asyncEnd();
-}
-
-void test1() {
-  // Test that a paused isolate doesn't send events.
-  // We start two isolates, one paused and one not.
-  // The unpaused one must send an event, after which
-  // we resume that paused isolate, and expect the second event.
-  // This is not a guaranteed test, since it can succeed even if the
-  // paused isolate isn't really paused.
-  // However, it must never fail, since that would mean that a paused
-  // isolate sends a message.
-  asyncStart();
-  RawReceivePort p1 = new RawReceivePort(notyet);
-  Isolate.spawn(isomain, p1.sendPort, paused: true).then((isolate) {
-    RawReceivePort p2;
-    p2 = new RawReceivePort((x) {
-      Expect.equals("DONE", x);
-      p2.close();
-      p1.handler = (x) {
-        Expect.equals("DONE", x);
-        p1.close();
-        asyncEnd();
-      };
-      isolate.resume(isolate.pauseCapability);
-    });
-    Isolate.spawn(isomain, p2.sendPort);
-  });
-}
-
-void test2() {
-  // Test that a paused isolate doesn't send events.
-  // Like the test above, except that we change the pause capability
-  // of the paused isolate by pausing it using another capability and
-  // then resuming the initial pause. This must not cause it to send
-  // a message before the second pause is resumed as well.
-  asyncStart();
-  RawReceivePort p1 = new RawReceivePort(notyet);
-  Isolate.spawn(isomain, p1.sendPort, paused: true).then((isolate) {
-    RawReceivePort p2;
-    Capability c2 = new Capability();
-    // Switch to another pause capability.
-    isolate.pause(c2);
-    isolate.resume(isolate.pauseCapability);
-    p2 = new RawReceivePort((x) {
-      Expect.equals("DONE", x);
-      p2.close();
-      p1.handler = (x) {
-        Expect.equals("DONE", x);
-        p1.close();
-        asyncEnd();
-      };
-      isolate.resume(c2);
-    });
-    Isolate.spawn(isomain, p2.sendPort);
-  });
-}
diff --git a/tests/lib_2/isolate/static_function_lib.dart b/tests/lib_2/isolate/static_function_lib.dart
deleted file mode 100644
index 590ee93a650..00000000000
--- a/tests/lib_2/isolate/static_function_lib.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library static_function_testlib;
-
-import "dart:isolate" show SendPort;
-
-// Used by static_function_test.dart.
-
-void function(port) {
-  port.send("LIBTOP");
-}
-
-void _function(port) {
-  port.send("_LIBTOP");
-}
-
-Function get privateFunction => _function;
-
-class C {
-  static void function(SendPort port) {
-    port.send("LIB");
-  }
-
-  static void _function(SendPort port) {
-    port.send("LIBPRIVATE");
-  }
-
-  static Function get privateFunction => _function;
-}
-
-Function get privateClassFunction => _C.function;
-Function get privateClassAndFunction => _C._function;
-
-class _C {
-  static void function(SendPort port) {
-    port.send("_LIB");
-  }
-
-  static void _function(SendPort port) {
-    port.send("_LIBPRIVATE");
-  }
-}
diff --git a/tests/lib_2/isolate/static_function_test.dart b/tests/lib_2/isolate/static_function_test.dart
deleted file mode 100644
index cccae39bfe0..00000000000
--- a/tests/lib_2/isolate/static_function_test.dart
+++ /dev/null
@@ -1,150 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test starting isolate with static functions (and toplevel ones, for sanity).
-
-library static_function_test;
-
-import 'dart:io';
-import 'dart:isolate';
-import 'static_function_lib.dart' as lib;
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-void function(SendPort port) {
-  port.send("TOP");
-}
-
-void _function(SendPort port) {
-  port.send("_TOP");
-}
-
-// A closure created at top-level (not inside a method), but not by a top-level
-// function declaration.
-var staticClosure = (SendPort port) {
-  port.send("WHAT?");
-};
-
-// An unnamed closure created inside a function.
-get dynamicClosure => (SendPort port) {
-      port.send("WHAT??");
-    };
-
-// A named closure created inside a function.
-get namedDynamicClosure {
-  void foo(SendPort port) {
-    port.send("WHAT FOO??");
-  }
-
-  ;
-  return foo;
-}
-
-class C {
-  // Unnamed closure created during object initialization, but not inside
-  // a method or constructor.
-  final Function instanceClosure = (SendPort port) {
-    port.send("C WHAT?");
-  };
-  // Unnamed closure created during object initializer list evaluation.
-  final Function constructorInitializerClosure;
-  // Unnamed closure created inside constructor body.
-  Function constructorBodyClosure;
-  // Named closure created inside constructor body.
-  Function namedConstructorBodyClosure;
-
-  C()
-      : constructorInitializerClosure = ((SendPort port) {
-          port.send("Init?");
-        }) {
-    constructorBodyClosure = (SendPort port) {
-      port.send("bodyClosure?");
-    };
-    void foo(SendPort port) {
-      port.send("namedBodyClosure?");
-    }
-
-    namedConstructorBodyClosure = foo;
-  }
-
-  static void function(SendPort port) {
-    port.send("YES");
-  }
-
-  static void _function(SendPort port) {
-    port.send("PRIVATE");
-  }
-
-  void instanceMethod(SendPort port) {
-    port.send("INSTANCE WHAT?");
-  }
-}
-
-class _C {
-  static void function(SendPort port) {
-    port.send("_YES");
-  }
-
-  static void _function(SendPort port) {
-    port.send("_PRIVATE");
-  }
-}
-
-void spawnTest(name, function, response) {
-  print(name);
-  ReceivePort r = new ReceivePort();
-  Isolate.spawn(function, r.sendPort);
-  asyncStart();
-  r.listen((v) {
-    Expect.equals(v, response);
-    r.close();
-    asyncEnd();
-  });
-}
-
-void functionFailTest(name, function) {
-  print("throws on $name");
-  asyncStart();
-  Isolate.spawn(function, null).catchError((e) {
-    /* do nothing */
-    asyncEnd();
-  });
-}
-
-void main([args, port]) {
-  asyncStart();
-  // Sanity check.
-  spawnTest("function", function, "TOP");
-  spawnTest("_function", _function, "_TOP");
-  spawnTest("lib.function", lib.function, "LIBTOP");
-  spawnTest("lib._function", lib.privateFunction, "_LIBTOP");
-
-  // Local static functions.
-  spawnTest("class.function", C.function, "YES");
-  spawnTest("class._function", C._function, "PRIVATE");
-  spawnTest("_class._function", _C.function, "_YES");
-  spawnTest("_class._function", _C._function, "_PRIVATE");
-
-  // Imported static functions.
-  spawnTest("lib.class.function", lib.C.function, "LIB");
-  spawnTest("lib.class._function", lib.C.privateFunction, "LIBPRIVATE");
-  spawnTest("lib._class._function", lib.privateClassFunction, "_LIB");
-  spawnTest("lib._class._function", lib.privateClassAndFunction, "_LIBPRIVATE");
-
-  spawnTest("static closure", staticClosure, "WHAT?");
-  spawnTest("dynamic closure", dynamicClosure, "WHAT??");
-  spawnTest("named dynamic closure", namedDynamicClosure, "WHAT FOO??");
-  spawnTest("instance closure", new C().instanceClosure, "C WHAT?");
-  spawnTest(
-      "initializer closure", new C().constructorInitializerClosure, "Init?");
-  spawnTest(
-      "constructor closure", new C().constructorBodyClosure, "bodyClosure?");
-  spawnTest("named constructor closure", new C().namedConstructorBodyClosure,
-      "namedBodyClosure?");
-  spawnTest("instance method", new C().instanceMethod, "INSTANCE WHAT?");
-
-  asyncEnd();
-}
diff --git a/tests/lib_2/isolate/string_from_environment_default_value_test.dart b/tests/lib_2/isolate/string_from_environment_default_value_test.dart
deleted file mode 100644
index 1a9a550e933..00000000000
--- a/tests/lib_2/isolate/string_from_environment_default_value_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:isolate";
-
-import "package:expect/expect.dart";
-
-void test(port) {
-  Expect.equals('', const String.fromEnvironment('NOT_FOUND'));
-  Expect.equals(
-      'x', const String.fromEnvironment('NOT_FOUND', defaultValue: 'x'));
-  if (port != null) port.send(null);
-}
-
-main() {
-  test(null);
-  var port = new ReceivePort();
-  Isolate.spawn(test, port.sendPort);
-  port.listen((_) => port.close());
-}
diff --git a/tests/lib_2/isolate/timer_isolate_test.dart b/tests/lib_2/isolate/timer_isolate_test.dart
deleted file mode 100644
index 9f87aa5b701..00000000000
--- a/tests/lib_2/isolate/timer_isolate_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library multiple_timer_test;
-
-import 'dart:isolate';
-import 'dart:async';
-import 'package:async_helper/async_minitest.dart';
-
-const Duration TIMEOUT = const Duration(milliseconds: 100);
-
-// Some browsers (Firefox and IE so far) can trigger too early. Add a safety
-// margin. We use identical(1, 1.0) as an easy way to know if the test is
-// compiled by dart2js.
-int get safetyMargin => identical(1, 1.0) ? 100 : 0;
-
-createTimer(replyTo) {
-  new Timer(TIMEOUT, () {
-    replyTo.send("timer_fired");
-  });
-}
-
-main() {
-  test("timer in isolate", () {
-    Stopwatch stopwatch = new Stopwatch();
-    ReceivePort port = new ReceivePort();
-
-    port.first.then(expectAsync((msg) {
-      expect("timer_fired", msg);
-      expect(stopwatch.elapsedMilliseconds + safetyMargin,
-          greaterThanOrEqualTo(TIMEOUT.inMilliseconds));
-    }));
-
-    stopwatch.start();
-    var remote = Isolate.spawn(createTimer, port.sendPort);
-  });
-}
diff --git a/tests/lib_2/isolate/timer_multiple_isolates_test.dart b/tests/lib_2/isolate/timer_multiple_isolates_test.dart
deleted file mode 100644
index ed401c1ca32..00000000000
--- a/tests/lib_2/isolate/timer_multiple_isolates_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library timer_multiple_isolates_test;
-
-import 'dart:isolate';
-import 'dart:async';
-
-child(msg) {
-  var i = msg[0];
-  var responsePort = msg[1];
-  print("Starting child $i");
-
-  // Keep this isolate running to prevent its shutdown from touching the event
-  // handler.
-  new RawReceivePort();
-
-  // Try to get separate wakeups for each isolate.
-  new Timer(new Duration(milliseconds: 100 * (i + 1)), () {
-    print("Timer fired $i");
-    responsePort.send(null);
-  });
-}
-
-main() {
-  var port;
-  var replies = 0;
-  var n = 3;
-  port = new RawReceivePort((reply) {
-    replies++;
-    print("Got reply $replies");
-    if (replies == n) {
-      print("Done");
-      port.close();
-    }
-  });
-
-  for (var i = 0; i < n; i++) {
-    Isolate.spawn(child, [i, port.sendPort]);
-  }
-}
diff --git a/tests/lib_2/isolate/transferable_failed_to_send_test.dart b/tests/lib_2/isolate/transferable_failed_to_send_test.dart
deleted file mode 100644
index b0ac3f4587e..00000000000
--- a/tests/lib_2/isolate/transferable_failed_to_send_test.dart
+++ /dev/null
@@ -1,87 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--no-enable-fast-object-copy
-// VMOptions=--enable-fast-object-copy
-
-import "dart:io" show ServerSocket;
-import "dart:isolate";
-import "dart:typed_data" show ByteData;
-
-import "package:expect/expect.dart";
-
-void main() async {
-  final port = new ReceivePort();
-
-  // Sending a socket object will result in an error.
-  final socket = await ServerSocket.bind('localhost', 0);
-
-  final x = new ByteData(4);
-  for (int i = 0; i < 4; i++) {
-    x.setUint8(i, i);
-  }
-  {
-    final transferableFirst = TransferableTypedData.fromList([x]);
-    Expect.throwsArgumentError(
-        () => port.sendPort.send(<dynamic>[transferableFirst, socket]));
-    // Once TransferableTypedData was sent even if attempt failed, it can't be
-    // materialized.
-    // This need to be changed so that on failed send we should not detach the
-    // buffer form the transferrable. The order should not matter (i.e. if the
-    // error happens before or after the serializer hits a transferrable object)
-
-    final data1 = transferableFirst.materialize().asUint8List();
-    Expect.equals(x.lengthInBytes, data1.length);
-    for (int i = 0; i < data1.length; i++) {
-      Expect.equals(i, data1[i]);
-    }
-  }
-  {
-    final transferableFirst = TransferableTypedData.fromList([x]);
-    Expect.throwsArgumentError(() => port.sendPort
-        .send(<dynamic>[transferableFirst, transferableFirst, socket]));
-    // Once TransferableTypedData was sent even if attempt failed, it can't be
-    // materialized.
-    // This need to be changed so that on failed send we should not detach the
-    // buffer form the transferrable. The order should not matter (i.e. if the
-    // error happens before or after the serializer hits a transferrable object)
-
-    final data1 = transferableFirst.materialize().asUint8List();
-    Expect.equals(x.lengthInBytes, data1.length);
-    for (int i = 0; i < data1.length; i++) {
-      Expect.equals(i, data1[i]);
-    }
-  }
-
-  {
-    final transferableSecond = TransferableTypedData.fromList([x]);
-    Expect.throwsArgumentError(
-        () => port.sendPort.send(<dynamic>[socket, transferableSecond]));
-    // Once TransferableTypedData was sent even if attempt failed, it can't be
-    // materialized.
-    final data2 = transferableSecond.materialize().asUint8List();
-    Expect.equals(x.lengthInBytes, data2.length);
-    for (int i = 0; i < data2.length; i++) {
-      Expect.equals(i, data2[i]);
-    }
-  }
-
-  {
-    final transferableSecond = TransferableTypedData.fromList([x]);
-    Expect.throwsArgumentError(() => port.sendPort
-        .send(<dynamic>[socket, transferableSecond, transferableSecond]));
-    // Once TransferableTypedData was sent even if attempt failed, it can't be
-    // materialized.
-    final data2 = transferableSecond.materialize().asUint8List();
-    Expect.equals(x.lengthInBytes, data2.length);
-    for (int i = 0; i < data2.length; i++) {
-      Expect.equals(i, data2[i]);
-    }
-  }
-
-  socket.close();
-  port.close();
-}
diff --git a/tests/lib_2/isolate/transferable_test.dart b/tests/lib_2/isolate/transferable_test.dart
deleted file mode 100644
index 5d8ed4d68b0..00000000000
--- a/tests/lib_2/isolate/transferable_test.dart
+++ /dev/null
@@ -1,289 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--no-enable-fast-object-copy
-// VMOptions=--enable-fast-object-copy
-
-import "dart:async";
-import "dart:collection";
-import "dart:isolate";
-import "dart:typed_data";
-import "package:expect/expect.dart";
-
-const large = 2 * 1024 * 1024;
-
-void child(replyPort) {
-  print("Child start");
-
-  print("Child ByteData");
-  dynamic x = new ByteData(large);
-  for (int i = 0; i < 4; i++) {
-    x.setInt8(i, i);
-  }
-  replyPort.send(TransferableTypedData.fromList([x.buffer.asUint8List()]));
-
-  print("Child Uint8List");
-  x = new Uint8List(large);
-  for (int i = 0; i < 4; i++) {
-    x[i] = i;
-  }
-  replyPort.send(TransferableTypedData.fromList([x]));
-
-  print("Child Uint8List.view");
-  x = new Uint8List.view(x.buffer, 1, 2);
-  replyPort.send(TransferableTypedData.fromList([x]));
-
-  print("Child Int8List");
-  x = new Int8List(large);
-  for (int i = 0; i < 4; i++) {
-    x[i] = i;
-  }
-  replyPort.send(TransferableTypedData.fromList([x]));
-
-  print("Child Uint16List");
-  x = new Uint16List(large);
-  for (int i = 0; i < 4; i++) {
-    x[i] = i;
-  }
-  replyPort.send(TransferableTypedData.fromList([x]));
-
-  print("Child Int16List");
-  x = new Int16List(large);
-  for (int i = 0; i < 4; i++) {
-    x[i] = i;
-  }
-  replyPort.send(TransferableTypedData.fromList([x]));
-
-  print("Child Uint32List");
-  x = new Uint32List(large);
-  for (int i = 0; i < 4; i++) {
-    x[i] = i;
-  }
-  replyPort.send(TransferableTypedData.fromList([x]));
-
-  print("Child Int32List");
-  x = new Int32List(large);
-  for (int i = 0; i < 4; i++) {
-    x[i] = i;
-  }
-  replyPort.send(TransferableTypedData.fromList([x]));
-
-  print("Child Uint64List");
-  x = new Uint64List(large);
-  for (int i = 0; i < 4; i++) {
-    x[i] = i;
-  }
-  replyPort.send(TransferableTypedData.fromList([x]));
-
-  print("Child Int64List");
-  x = new Int64List(large);
-  for (int i = 0; i < 4; i++) {
-    x[i] = i;
-  }
-  replyPort.send(TransferableTypedData.fromList([x]));
-
-  print("Child two Uint8Lists");
-  x = new Uint8List(large);
-  for (int i = 0; i < 4; i++) {
-    x[i] = i;
-  }
-  replyPort.send([
-    TransferableTypedData.fromList([x]),
-    TransferableTypedData.fromList([x])
-  ]);
-
-  print("Child same Uint8List twice - materialize first");
-  x = new Uint8List(large);
-  for (int i = 0; i < 4; i++) {
-    x[i] = i;
-  }
-  var tr = TransferableTypedData.fromList([x]);
-  replyPort.send([tr, tr]);
-
-  print("Child same Uint8List twice - materialize second");
-  x = new Uint8List(large);
-  for (int i = 0; i < 4; i++) {
-    x[i] = i;
-  }
-  tr = TransferableTypedData.fromList([x]);
-  replyPort.send([tr, tr]);
-
-  print("Child done");
-}
-
-Future<void> main(List<String> args) async {
-  print("Parent start");
-
-  ReceivePort port = new ReceivePort();
-  Isolate.spawn(child, port.sendPort);
-  StreamIterator<dynamic> incoming = new StreamIterator<dynamic>(port);
-
-  print("Parent ByteData");
-  Expect.isTrue(await incoming.moveNext());
-  dynamic x = incoming.current.materialize().asByteData();
-  Expect.isTrue(x is ByteData);
-  Expect.equals(large, x.length);
-  for (int i = 0; i < 4; i++) {
-    Expect.equals(i, x.getUint8(i));
-  }
-
-  print("Parent Uint8List");
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current.materialize();
-  Expect.isTrue(x is ByteBuffer);
-  x = x.asUint8List();
-  Expect.equals(large, x.length);
-  for (int i = 0; i < 4; i++) {
-    Expect.equals(i, x[i]);
-  }
-
-  print("Parent Uint8List view");
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current.materialize().asUint8List();
-  Expect.equals(1, x[0]);
-  Expect.equals(2, x[1]);
-
-  print("Parent Int8");
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current.materialize().asInt8List();
-  Expect.equals(large, x.length);
-  for (int i = 0; i < 4; i++) {
-    Expect.equals(i, x[i]);
-  }
-
-  print("Parent Uint16");
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current.materialize().asUint16List();
-  Expect.equals(large, x.length);
-  for (int i = 0; i < 4; i++) {
-    Expect.equals(i, x[i]);
-  }
-
-  print("Parent Int16");
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current.materialize().asInt16List();
-  Expect.equals(large, x.length);
-  for (int i = 0; i < 4; i++) {
-    Expect.equals(i, x[i]);
-  }
-
-  print("Parent Uint32");
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current.materialize().asUint32List();
-  Expect.equals(large, x.length);
-  for (int i = 0; i < 4; i++) {
-    Expect.equals(i, x[i]);
-  }
-
-  print("Parent Int32");
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current.materialize().asInt32List();
-  Expect.equals(large, x.length);
-  for (int i = 0; i < 4; i++) {
-    Expect.equals(i, x[i]);
-  }
-
-  print("Parent Uint64");
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current.materialize().asUint64List();
-  Expect.equals(large, x.length);
-  for (int i = 0; i < 4; i++) {
-    Expect.equals(i, x[i]);
-  }
-
-  print("Parent Int64");
-  Expect.isTrue(await incoming.moveNext());
-  x = incoming.current.materialize().asInt64List();
-  Expect.equals(large, x.length);
-  for (int i = 0; i < 4; i++) {
-    Expect.equals(i, x[i]);
-  }
-
-  print("Parent two Uint8Lists");
-  Expect.isTrue(await incoming.moveNext());
-  final x1 = incoming.current[0].materialize().asUint8List();
-  final x2 = incoming.current[1].materialize().asUint8List();
-  Expect.equals(large, x1.length);
-  Expect.equals(large, x2.length);
-  for (int i = 0; i < 4; i++) {
-    Expect.equals(i, x1[i]);
-    Expect.equals(i, x2[i]);
-  }
-
-  print("Parent same Uint8Lists twice, materialize first");
-  Expect.isTrue(await incoming.moveNext());
-  final tr0 = incoming.current[0].materialize().asUint8List();
-  Expect.throwsArgumentError(() => incoming.current[1].materialize());
-  Expect.equals(large, tr0.length);
-  for (int i = 0; i < 4; i++) {
-    Expect.equals(i, tr0[i]);
-  }
-
-  print("Parent same Uint8Lists twice, materialize second");
-  Expect.isTrue(await incoming.moveNext());
-  final tr1 = incoming.current[1].materialize().asUint8List();
-  Expect.throwsArgumentError(() => incoming.current[0].materialize());
-  Expect.equals(large, tr1.length);
-  for (int i = 0; i < 4; i++) {
-    Expect.equals(i, tr1[i]);
-  }
-
-  port.close();
-  print("Parent done");
-
-  testCreateMaterializeInSameIsolate();
-  testIterableToList();
-  testUserExtendedList();
-}
-
-testCreateMaterializeInSameIsolate() {
-  // Test same-isolate operation of TransferableTypedData.
-  final Uint8List bytes = new Uint8List(large);
-  for (int i = 0; i < bytes.length; ++i) {
-    bytes[i] = i % 256;
-  }
-  final tr = TransferableTypedData.fromList([bytes]);
-  Expect.listEquals(bytes, tr.materialize().asUint8List());
-}
-
-testIterableToList() {
-  // Test that iterable.toList() can be used as an argument.
-  final list1 = Uint8List(10);
-  for (int i = 0; i < list1.length; i++) {
-    list1[i] = i;
-  }
-  final list2 = Uint8List(20);
-  for (int i = 0; i < list2.length; i++) {
-    list2[i] = i + list1.length;
-  }
-  final map = {list1: true, list2: true};
-  Iterable<Uint8List> iterable = map.keys;
-  final result = TransferableTypedData.fromList(iterable.toList())
-      .materialize()
-      .asUint8List();
-  for (int i = 0; i < result.length; i++) {
-    Expect.equals(i, result[i]);
-  }
-}
-
-class MyList<E> extends ListBase<E> {
-  List<E> _source;
-  MyList(this._source);
-  int get length => _source.length;
-  void set length(int length) {
-    _source.length = length;
-  }
-
-  E operator [](int index) => _source[index];
-  void operator []=(int index, E value) {
-    _source[index] = value;
-  }
-}
-
-testUserExtendedList() {
-  final list = MyList<TypedData>([Uint8List(10)]);
-  TransferableTypedData.fromList(list);
-}
diff --git a/tests/lib_2/isolate/type_ref_message_test.dart b/tests/lib_2/isolate/type_ref_message_test.dart
deleted file mode 100644
index 8dd2a79149f..00000000000
--- a/tests/lib_2/isolate/type_ref_message_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// See https://github.com/flutter/flutter/issues/84691
-
-// @dart = 2.9
-
-import "dart:async";
-import "dart:isolate";
-
-import "package:async_helper/async_helper.dart";
-import "package:expect/expect.dart";
-
-
-class B<T> {}
-class D<S> extends B<D> {}
-
-main() {
-  asyncStart();
-  var port;
-  port = new RawReceivePort((message) {
-    var list = message as List<D<String>>;
-    var element = list[0] as D<String>;
-
-    port.close();
-    asyncEnd();
-  });
-
-
-  var list = <D<String>>[ new D() ];
-  port.sendPort.send(list);
-}
diff --git a/tests/lib_2/isolate/typed_message_test.dart b/tests/lib_2/isolate/typed_message_test.dart
deleted file mode 100644
index 77c76d0bebc..00000000000
--- a/tests/lib_2/isolate/typed_message_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart test program for testing isolate communication with
-// typed objects.
-
-library TypedMessageTest;
-
-import "dart:async";
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-import "dart:isolate";
-
-void logMessages(SendPort replyTo) {
-  print("Starting log server.");
-  ReceivePort port = new ReceivePort();
-  replyTo.send(port.sendPort);
-  port.first.then((_message) {
-    List<int> message = _message;
-    print("Log $message");
-    Expect.equals(5, message.length);
-    Expect.equals(0, message[0]);
-    Expect.equals(1, message[1]);
-    Expect.equals(2, message[2]);
-    Expect.equals(3, message[3]);
-    Expect.equals(4, message[4]);
-    port.close();
-    replyTo.send(1);
-    print("Stopping log server.");
-  });
-}
-
-main() {
-  asyncStart();
-  ReceivePort receivePort = new ReceivePort();
-  Future<Isolate> remote = Isolate.spawn(logMessages, receivePort.sendPort);
-  var msg = <int>[0, 1, 2, 3, 4];
-  StreamIterator iterator = new StreamIterator(receivePort);
-  iterator.moveNext().then((b) {
-    SendPort sendPort = iterator.current;
-    sendPort.send(msg);
-    return iterator.moveNext();
-  }).then((b) {
-    Expect.equals(1, iterator.current);
-    receivePort.close();
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/isolate/unboxed_double_snapshot_writer_test.dart b/tests/lib_2/isolate/unboxed_double_snapshot_writer_test.dart
deleted file mode 100644
index 400424fdbb6..00000000000
--- a/tests/lib_2/isolate/unboxed_double_snapshot_writer_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import 'dart:isolate';
-import 'dart:typed_data';
-
-import 'package:expect/expect.dart';
-
-double getDoubleWithHeapObjectTag() {
-  final bd = ByteData(8);
-  bd.setUint64(0, 0x8000000000000001, Endian.host);
-  final double v = bd.getFloat64(0, Endian.host);
-  return v;
-}
-
-class Foo {
-  final double x = getDoubleWithHeapObjectTag();
-  final String name = "Foo Class";
-  Foo();
-}
-
-main(args) async {
-  final receivePort = new ReceivePort();
-
-  receivePort.sendPort.send(Foo());
-  final it = StreamIterator(receivePort);
-  Expect.isTrue(await it.moveNext());
-  final Foo receivedFoo = it.current as Foo;
-  Expect.equals(receivedFoo.x, getDoubleWithHeapObjectTag());
-  Expect.equals(receivedFoo.name, "Foo Class");
-  await it.cancel();
-}
diff --git a/tests/lib_2/isolate/unmodifiable_typed_data_pass_by_copy_test.dart b/tests/lib_2/isolate/unmodifiable_typed_data_pass_by_copy_test.dart
deleted file mode 100644
index e21ecc9c70b..00000000000
--- a/tests/lib_2/isolate/unmodifiable_typed_data_pass_by_copy_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:isolate";
-import "dart:typed_data";
-
-import "package:async_helper/async_helper.dart";
-import "package:expect/expect.dart";
-
-main() {
-  final backing = new Uint8List(1);
-  final original = backing.asUnmodifiableView();
-  var port;
-  port = new RawReceivePort((copy) {
-    port.close();
-    asyncEnd();
-
-    Expect.isFalse(identical(original, copy));
-    backing[0] = 1;
-    Expect.equals(1, original[0]);
-    Expect.equals(0, copy[0]);
-  });
-
-  asyncStart();
-  port.sendPort.send(original);
-}
diff --git a/tests/lib_2/isolate/unresolved_ports_test.dart b/tests/lib_2/isolate/unresolved_ports_test.dart
deleted file mode 100644
index 5147909d747..00000000000
--- a/tests/lib_2/isolate/unresolved_ports_test.dart
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// spawns multiple isolates and sends unresolved ports between them.
-library unresolved_ports;
-
-import 'dart:async';
-import 'dart:isolate';
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-// This test does the following:
-//  - main spawns two isolates: 'tim' and 'beth'
-//  - 'tim' spawns an isolate: 'bob'
-//  - main starts a message chain:
-//       main -> beth -> tim -> bob -> main
-//    by giving 'beth' a send-port to 'tim'.
-
-bethIsolate(init) {
-  ReceivePort port = initIsolate(init);
-  // TODO(sigmund): use expectAsync when it is OK to use it within an isolate
-  // (issue #6856)
-  port.first.then((msg) => msg[1]
-      .send(['${msg[0]}\nBeth says: Tim are you coming? And Bob?', msg[2]]));
-}
-
-timIsolate(init) {
-  ReceivePort port = initIsolate(init);
-  spawnFunction(bobIsolate).then((bob) {
-    port.first.then((msg) => bob.send([
-          '${msg[0]}\nTim says: Can you tell "main" that we are all coming?',
-          msg[1]
-        ]));
-  });
-}
-
-bobIsolate(init) {
-  ReceivePort port = initIsolate(init);
-  port.first
-      .then((msg) => msg[1].send('${msg[0]}\nBob says: we are all coming!'));
-}
-
-Future spawnFunction(function) {
-  ReceivePort init = new ReceivePort();
-  Isolate.spawn(function, init.sendPort);
-  return init.first;
-}
-
-ReceivePort initIsolate(SendPort starter) {
-  ReceivePort port = new ReceivePort();
-  starter.send(port.sendPort);
-  return port;
-}
-
-baseTest({bool failForNegativeTest: false}) {
-  // Message chain with unresolved ports
-  ReceivePort port = new ReceivePort();
-  asyncStart();
-  port.listen((msg) {
-    Expect.equals(
-        msg,
-        'main says: Beth, find out if Tim is coming.'
-        '\nBeth says: Tim are you coming? And Bob?'
-        '\nTim says: Can you tell "main" that we are all coming?'
-        '\nBob says: we are all coming!');
-    Expect.isFalse(failForNegativeTest);
-    port.close();
-    asyncEnd();
-  });
-
-  spawnFunction(timIsolate).then((tim) {
-    spawnFunction(bethIsolate).then((beth) {
-      beth.send(
-          ['main says: Beth, find out if Tim is coming.', tim, port.sendPort]);
-    });
-  });
-}
-
-void main([args, port]) => baseTest();
diff --git a/tests/lib_2/isolate/vm_rehash_test.dart b/tests/lib_2/isolate/vm_rehash_test.dart
deleted file mode 100644
index 2709901d338..00000000000
--- a/tests/lib_2/isolate/vm_rehash_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import 'dart:isolate';
-
-int globalHash = 0;
-
-class A {
-  int get hashCode => globalHash;
-  bool operator ==(other) => true;
-}
-
-final key = new A();
-
-other(SendPort sendPort) async {
-  // We use a different hash than the main isolate, but the re-hashing on our
-  // side happens after this line and should therefore also deserialize the map
-  // with a new hash, so we should be able to find the value in the map.
-  globalHash = 4321;
-
-  final port = new ReceivePort();
-  sendPort.send(port.sendPort);
-
-  final Map map = await port.first;
-  sendPort.send(map[key]);
-  port.close();
-}
-
-void launchIsolate(argument) {
-  other(argument);
-}
-
-main() async {
-  final r = new ReceivePort();
-  final re = new ReceivePort();
-  final map = {};
-
-  globalHash = 1234;
-  map[key] = 1;
-
-  await Isolate.spawn(launchIsolate, r.sendPort, onError: re.sendPort);
-  re.listen((error) => throw 'Error $error');
-
-  final it = new StreamIterator(r);
-
-  await it.moveNext();
-  final SendPort port = it.current;
-
-  port.send(map);
-  await it.moveNext();
-  final otherIsolateMapEntry = await it.current;
-  if (map[key] != otherIsolateMapEntry) {
-    throw "test failed";
-  }
-  r.close();
-  re.close();
-}
diff --git a/tests/lib_2/isolate/weak_property_message_1_test.dart b/tests/lib_2/isolate/weak_property_message_1_test.dart
deleted file mode 100644
index f5889fb48db..00000000000
--- a/tests/lib_2/isolate/weak_property_message_1_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// See https://github.com/dart-lang/sdk/issues/25559
-
-// @dart = 2.9
-
-import "dart:isolate";
-
-import "package:async_helper/async_helper.dart";
-import "package:expect/expect.dart";
-
-main() {
-  asyncStart();
-  var port;
-  port = new RawReceivePort((message) {
-    var expando1 = message[0] as Expando;
-    var expando2 = message[1] as Expando;
-    var expando3 = message[2] as Expando;
-    var key1 = message[3];
-
-    var key2 = expando1[key1];
-    Expect.isNotNull(key2);
-    var key3 = expando2[key2];
-    Expect.isNotNull(key3);
-    var value = expando3[key3];
-    Expect.equals(value, "value");
-
-    port.close();
-    asyncEnd();
-  });
-
-  var key1 = new Object();
-  var key2 = new Object();
-  var key3 = new Object();
-  var expando1 = new Expando();
-  var expando2 = new Expando();
-  var expando3 = new Expando();
-  expando1[key1] = key2;
-  expando2[key2] = key3;
-  expando3[key3] = "value";
-
-  // key1 is placed after expando1 so that its reachability is uncertain when
-  // expando1 is first encountered.
-  var message = <dynamic>[expando1, expando2, expando3, key1];
-  port.sendPort.send(message);
-}
diff --git a/tests/lib_2/isolate/weak_property_message_2_test.dart b/tests/lib_2/isolate/weak_property_message_2_test.dart
deleted file mode 100644
index 517ae3470a4..00000000000
--- a/tests/lib_2/isolate/weak_property_message_2_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// See https://github.com/dart-lang/sdk/issues/25559
-
-// @dart = 2.9
-
-import "dart:developer";
-import "dart:isolate";
-
-import "package:async_helper/async_helper.dart";
-
-main() {
-  asyncStart();
-  var port;
-  port = new RawReceivePort((message) {
-    var expando = message as Expando;
-
-    // Sent and received without error.
-
-    port.close();
-    asyncEnd();
-  });
-
-  var unwrittenKey = new Object();
-  var expando = new Expando();
-  expando[unwrittenKey] = new UserTag("cant send this");
-
-  port.sendPort.send(expando);
-
-  print(unwrittenKey); // Ensure [unwrittenKey] is live during [send].
-}
diff --git a/tests/lib_2/isolate/weak_reference_message_2_test.dart b/tests/lib_2/isolate/weak_reference_message_2_test.dart
deleted file mode 100644
index 720d4d7c06b..00000000000
--- a/tests/lib_2/isolate/weak_reference_message_2_test.dart
+++ /dev/null
@@ -1,72 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// VMOptions=--enable_fast_object_copy=true
-// VMOptions=--enable_fast_object_copy=false
-
-// @dart = 2.9
-
-import 'dart:io';
-import "dart:isolate";
-import 'dart:typed_data';
-
-import "package:expect/expect.dart";
-
-main() async {
-  final port = ReceivePort();
-  await Isolate.spawn(
-    runHelper,
-    port.sendPort,
-  );
-  final message = await port.first;
-
-  final weakRef1copy = message[0] as WeakReference<Uint8List>;
-  final weakRef2copy = message[1] as WeakReference<Uint8List>;
-  final weakRef3copy = message[3] as WeakReference<Uint8List>;
-  final weakRef4copy = message[5] as WeakReference<Uint8List>;
-  Expect.isNull(weakRef1copy.target);
-  Expect.equals(2, weakRef2copy.target?.length);
-  Expect.isNull(weakRef3copy.target);
-  Expect.equals(4, weakRef4copy.target?.length);
-
-  port.close();
-}
-
-Future<void> runHelper(SendPort port) async {
-  final object1 = Uint8List(1);
-  final weakRef1 = WeakReference(object1);
-  final object2 = Uint8List(2);
-  final weakRef2 = WeakReference(object2);
-  final object3 = Uint8List(3);
-  final weakRef3 = WeakReference(object3);
-  final object4 = Uint8List(4);
-  final weakRef4 = WeakReference(object4);
-
-  final key3 = Object();
-  final expando3 = Expando();
-  expando3[key3] = object3;
-  final key4 = Object();
-  final expando4 = Expando();
-  expando4[key4] = object4;
-
-  final message = <dynamic>[
-    weakRef1, // Does not have its target included.
-    weakRef2, // Has its target included later than itself.
-    object2,
-    weakRef3, // Does not have its target included.
-    expando3,
-    weakRef4, // Has its target included due to expando.
-    expando4,
-    key4,
-  ];
-  port.send(message);
-}
-
-class Nonce {
-  final int value;
-
-  Nonce(this.value);
-
-  String toString() => 'Nonce($value)';
-}
diff --git a/tests/lib_2/js/array_test.dart b/tests/lib_2/js/array_test.dart
deleted file mode 100644
index 76c602164e9..00000000000
--- a/tests/lib_2/js/array_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS()
-library array_test;
-
-import 'package:expect/expect.dart';
-import 'package:js/js.dart';
-import 'package:js/js_util.dart' as js;
-
-main() {
-  testArrayConstructor();
-}
-
-/// Test that we can access .constructor() on a JS Array instance, regardless
-/// of the reified generic type.
-///
-/// Regression test for https://github.com/dart-lang/sdk/issues/36372
-testArrayConstructor() {
-  var list = <int>[1, 2, 3];
-  testArray = list;
-
-  // Call the constructor with `new`.
-  var array = js.callConstructor(js.getProperty(testArray, 'constructor'), []);
-  var list2 = array as List;
-  Expect.listEquals(list2, []);
-  Expect.notEquals(list, list2, '$list2 should be a new list');
-
-  // We could return a reified type here, but currently does not to match
-  // dart2js, and because the Array is being returned to JS.
-  Expect.isFalse(list2 is List<int>,
-      '$list2 should not have a reified generic type (it was allocated by JS)');
-
-  list2.addAll([1, 2, 3]);
-  Expect.listEquals(list, list2);
-}
-
-external Object get testArray;
-external set testArray(value);
diff --git a/tests/lib_2/js/datetime_roundtrip_test.dart b/tests/lib_2/js/datetime_roundtrip_test.dart
deleted file mode 100644
index daefed809bf..00000000000
--- a/tests/lib_2/js/datetime_roundtrip_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:js';
-import 'package:expect/expect.dart';
-
-main() {
-  var dt = new DateTime.now();
-  var jsArray = new JsObject.jsify([dt]);
-  var roundTripped = jsArray[0];
-  Expect.isTrue(roundTripped is DateTime);
-  Expect.equals(dt.millisecondsSinceEpoch, roundTripped.millisecondsSinceEpoch);
-}
diff --git a/tests/lib_2/js/export/functional_test.dart b/tests/lib_2/js/export/functional_test.dart
deleted file mode 100644
index 1c65c18833b..00000000000
--- a/tests/lib_2/js/export/functional_test.dart
+++ /dev/null
@@ -1,253 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test various uses of exports that are returned from `createDartExport`.
-
-import 'package:expect/minitest.dart';
-import 'package:js/js.dart';
-import 'package:js/js_util.dart';
-
-// Test exporting all vs. only some members.
-@JSExport()
-class ExportAll {
-  ExportAll.constructor();
-  factory ExportAll.factory() => ExportAll.constructor();
-
-  String field = 'field';
-  final String finalField = 'finalField';
-  String _getSetField = 'getSet';
-  String get getSet => _getSetField;
-  set getSet(String val) => _getSetField = val;
-  String method() => 'method';
-
-  static String staticField = throw '';
-  static void staticMethod() => throw '';
-}
-
-extension on ExportAll {
-  String extensionMethod() => throw '';
-
-  static String extensionStaticField = throw '';
-  static void extensionStaticMethod() => throw '';
-}
-
-void testExportAll() {
-  var dartInstance = ExportAll.constructor();
-  var all = createDartExport(dartInstance);
-
-  // Verify only the exportable properties exist.
-  expect(hasProperty(all, 'constructor'), false);
-  expect(hasProperty(all, 'factory'), false);
-  expect(hasProperty(all, 'field'), true);
-  expect(hasProperty(all, 'finalField'), true);
-  expect(hasProperty(all, '_getSetField'), true);
-  expect(hasProperty(all, 'getSet'), true);
-  expect(hasProperty(all, 'method'), true);
-  expect(hasProperty(all, 'staticField'), false);
-  expect(hasProperty(all, 'staticMethod'), false);
-  expect(hasProperty(all, 'extensionMethod'), false);
-  expect(hasProperty(all, 'extensionStaticField'), false);
-  expect(hasProperty(all, 'extensionStaticMethod'), false);
-}
-
-class ExportSome {
-  ExportSome.constructor();
-  factory ExportSome.factory() => ExportSome.constructor();
-
-  @JSExport()
-  String field = 'field';
-  @JSExport()
-  final String finalField = 'finalField';
-  @JSExport()
-  String get getSet => nonExportField;
-  @JSExport()
-  set getSet(String val) => nonExportField = val;
-  @JSExport()
-  String method() => 'method';
-
-  String nonExportField = 'getSet';
-  final String nonExportFinalField = '';
-  String get nonExportGetSet => throw '';
-  set nonExportGetSet(String val) => throw '';
-  String nonExportMethod() => throw '';
-}
-
-void testExportSome() {
-  var dartInstance = ExportSome.constructor();
-  var some = createDartExport(dartInstance);
-
-  // Verify only the properties we marked as exportable exist.
-  expect(hasProperty(some, 'constructor'), false);
-  expect(hasProperty(some, 'factory'), false);
-
-  expect(hasProperty(some, 'field'), true);
-  expect(hasProperty(some, 'finalField'), true);
-  expect(hasProperty(some, 'getSet'), true);
-  expect(hasProperty(some, 'method'), true);
-
-  expect(hasProperty(some, 'nonExportField'), false);
-  expect(hasProperty(some, 'nonExportFinalField'), false);
-  expect(hasProperty(some, 'nonExportGetSet'), false);
-  expect(hasProperty(some, 'nonExportMethod'), false);
-}
-
-// Test that the properties are forwarded correctly in the object literal.
-void testForwarding() {
-  var dartInstance = ExportAll.constructor();
-  var all = createDartExport(dartInstance);
-
-  expect(getProperty(all, 'field'), dartInstance.field);
-  setProperty(all, 'field', 'modified');
-  expect(dartInstance.field, 'modified');
-
-  expect(getProperty(all, 'finalField'), dartInstance.finalField);
-
-  expect(getProperty(all, 'getSet'), dartInstance.getSet);
-  setProperty(all, 'getSet', 'modified');
-  expect(dartInstance.getSet, 'modified');
-
-  expect(callMethod(all, 'method', []), dartInstance.method());
-}
-
-// Test inheritance and overrides for every kind of member.
-@JSExport()
-class Superclass {
-  String field = 'superclassField';
-  final String finalField = 'superclassFinalField';
-  String get getSet => 'superclassGetter';
-  set getSet(String val) {
-    if (val != 'superclassSetter') throw '';
-  }
-
-  String method() => 'superclassMethod';
-
-  String nonOverriddenMethod() => 'nonOverriddenMethod';
-}
-
-@JSExport()
-class Inheritance extends Superclass {}
-
-void testInheritance() {
-  var dartInheritance = Inheritance();
-  var inheritance = createDartExport(dartInheritance);
-
-  expect(getProperty(inheritance, 'field'), dartInheritance.field);
-  setProperty(inheritance, 'field', 'modified');
-  expect(dartInheritance.field, 'modified');
-
-  expect(getProperty(inheritance, 'finalField'), dartInheritance.finalField);
-
-  expect(getProperty(inheritance, 'getSet'), dartInheritance.getSet);
-  setProperty(inheritance, 'getSet', 'superclassSetter');
-
-  expect(callMethod(inheritance, 'method', []), dartInheritance.method());
-}
-
-@JSExport()
-class Overrides extends Superclass {
-  String field = 'derivedField';
-  final String finalField = 'derivedFinalField';
-  String get getSet => 'derivedGetter';
-  set getSet(String val) {
-    if (val != 'derivedSetter') throw '';
-  }
-
-  String method() => 'derivedMethod';
-}
-
-void testOverrides() {
-  var dartOverrides = Overrides();
-  var overrides = createDartExport(dartOverrides);
-
-  expect(getProperty(overrides, 'field'), dartOverrides.field);
-  setProperty(overrides, 'field', 'modified');
-  expect(dartOverrides.field, 'modified');
-
-  expect(getProperty(overrides, 'finalField'), dartOverrides.finalField);
-
-  expect(getProperty(overrides, 'getSet'), dartOverrides.getSet);
-  setProperty(overrides, 'getSet', 'derivedSetter');
-
-  expect(callMethod(overrides, 'method', []), dartOverrides.method());
-  expect(callMethod(overrides, 'nonOverriddenMethod', []),
-      dartOverrides.nonOverriddenMethod());
-}
-
-// Test case where some members are overridden by members not marked for export,
-// essentially removing them.
-class SuperclassShadowed {
-  @JSExport()
-  String field = 'superclassField';
-  final String finalField = '';
-  @JSExport()
-  String get getSet => 'superclassGetter';
-  set getSet(String val) {}
-
-  @JSExport()
-  String method() => 'superclassMethod';
-}
-
-class InheritanceShadowed extends SuperclassShadowed {
-  String field = 'derivedField';
-  String get getSet => 'derivedGetter';
-  @JSExport()
-  String method() => 'derivedMethod';
-}
-
-void testShadowed() {
-  var dartShadowed = InheritanceShadowed();
-  var shadowed = createDartExport(dartShadowed);
-
-  expect(hasProperty(shadowed, 'field'), false);
-  expect(hasProperty(shadowed, 'finalField'), false);
-  expect(hasProperty(shadowed, 'getSet'), false);
-
-  expect(callMethod(shadowed, 'method', []), dartShadowed.method());
-}
-
-// Test that the arity is correct.
-@JSExport()
-class Arity {
-  void onePositional(String arg1) {}
-  void twoPositional(String arg1, String arg2) {}
-  void oneOptional([String? arg1]) {}
-  void twoOptional([String? arg1, String arg2 = '']) {}
-  void onePositionalOneOptional(String arg1, [String? arg2]) {}
-}
-
-void testArity() {
-  var arity = createDartExport(Arity());
-
-  callMethod(arity, 'onePositional', ['']);
-
-  callMethod(arity, 'twoPositional', ['', '']);
-
-  callMethod(arity, 'oneOptional', []);
-  callMethod(arity, 'oneOptional', ['']);
-
-  callMethod(arity, 'twoOptional', []);
-  callMethod(arity, 'twoOptional', ['']);
-  callMethod(arity, 'twoOptional', ['', '']);
-
-  callMethod(arity, 'onePositionalOneOptional', ['']);
-  callMethod(arity, 'onePositionalOneOptional', ['', '']);
-}
-
-// Test that the transformation occurs in other js_util calls.
-void testNestedJsUtil() {
-  setProperty(globalThis, 'export', createDartExport(ExportAll.constructor()));
-  expect(hasProperty(globalThis, 'export'), true);
-  expect(hasProperty(getProperty(globalThis, 'export'), 'field'), true);
-}
-
-void main() {
-  testExportAll();
-  testExportSome();
-  testForwarding();
-  testInheritance();
-  testOverrides();
-  testShadowed();
-  testArity();
-  testNestedJsUtil();
-}
diff --git a/tests/lib_2/js/export/inheritance_collision_test.dart b/tests/lib_2/js/export/inheritance_collision_test.dart
deleted file mode 100644
index 4d1fff60199..00000000000
--- a/tests/lib_2/js/export/inheritance_collision_test.dart
+++ /dev/null
@@ -1,203 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Tests collisions of `@JSExport` members using inheritance.
-
-import 'package:js/js.dart';
-import 'package:js/js_util.dart';
-
-// Overridden members do not count as an export name collision.
-@JSExport()
-class SuperclassNoCollision {
-  int field = throw '';
-  final int finalField = throw '';
-  int get getSet => throw '';
-  set getSet(int val) => throw '';
-  void method() => throw '';
-}
-
-@JSExport()
-mixin MixinNoCollision {
-  int field = throw '';
-  final int finalField = throw '';
-  int get getSet => throw '';
-  set getSet(int val) => throw '';
-  void method() => throw '';
-}
-
-@JSExport()
-mixin MixinNoCollision2 {
-  int field = throw '';
-  final int finalField = throw '';
-  int get getSet => throw '';
-  set getSet(int val) => throw '';
-  void method() => throw '';
-}
-
-@JSExport()
-class InheritanceOneOverrideNoCollision extends SuperclassNoCollision
-    with MixinNoCollision {}
-
-@JSExport()
-class InheritanceTwoOverridesNoCollision extends SuperclassNoCollision
-    with MixinNoCollision, MixinNoCollision2 {}
-
-@JSExport()
-class InheritanceThreeOverridesNoCollision extends SuperclassNoCollision
-    with MixinNoCollision, MixinNoCollision2 {
-  int field = throw '';
-  final int finalField = throw '';
-  int get getSet => throw '';
-  set getSet(int val) => throw '';
-  void method() => throw '';
-}
-
-// Export name collisions can exist across classes and mixin applications.
-@JSExport()
-class SuperclassCollision {
-  @JSExport('field')
-  int fieldSuper = throw '';
-  @JSExport('finalField')
-  final int finalFieldSuper = throw '';
-  @JSExport('getSet')
-  int get getSetSuper => throw '';
-  @JSExport('getSet')
-  set getSetSuper(int val) => throw '';
-  @JSExport('method')
-  void methodSuper() => throw '';
-}
-
-@JSExport()
-mixin MixinCollision {
-  @JSExport('field')
-  int fieldMixin = throw '';
-  @JSExport('finalField')
-  final int finalFieldMixin = throw '';
-  @JSExport('getSet')
-  int get getSetMixin => throw '';
-  @JSExport('getSet')
-  set getSetMixin(int val) => throw '';
-  @JSExport('method')
-  void methodMixin() => throw '';
-}
-
-@JSExport()
-mixin MixinCollision2 {
-  @JSExport('field')
-  int fieldMixin2 = throw '';
-  @JSExport('finalField')
-  final int finalFieldMixin2 = throw '';
-  @JSExport('getSet')
-  int get getSetMixin2 => throw '';
-  @JSExport('getSet')
-  set getSetMixin2(int val) => throw '';
-  @JSExport('method')
-  void methodMixin2() => throw '';
-}
-
-@JSExport()
-class InheritanceRenameOneCollision extends SuperclassCollision
-//    ^
-// [web] The following class members collide with the same export 'field': MixinCollision.fieldMixin, SuperclassCollision.fieldSuper.
-// [web] The following class members collide with the same export 'finalField': MixinCollision.finalFieldMixin, SuperclassCollision.finalFieldSuper.
-// [web] The following class members collide with the same export 'getSet': MixinCollision.getSetMixin, MixinCollision.getSetMixin, SuperclassCollision.getSetSuper, SuperclassCollision.getSetSuper.
-// [web] The following class members collide with the same export 'method': MixinCollision.methodMixin, SuperclassCollision.methodSuper.
-    with
-        MixinCollision {}
-
-@JSExport()
-class InheritanceRenameTwoCollisions extends SuperclassCollision
-//    ^
-// [web] The following class members collide with the same export 'field': MixinCollision.fieldMixin, MixinCollision2.fieldMixin2, SuperclassCollision.fieldSuper.
-// [web] The following class members collide with the same export 'finalField': MixinCollision.finalFieldMixin, MixinCollision2.finalFieldMixin2, SuperclassCollision.finalFieldSuper.
-// [web] The following class members collide with the same export 'getSet': MixinCollision.getSetMixin, MixinCollision.getSetMixin, MixinCollision2.getSetMixin2, MixinCollision2.getSetMixin2, SuperclassCollision.getSetSuper, SuperclassCollision.getSetSuper.
-// [web] The following class members collide with the same export 'method': MixinCollision.methodMixin, MixinCollision2.methodMixin2, SuperclassCollision.methodSuper.
-    with
-        MixinCollision,
-        MixinCollision2 {}
-
-@JSExport()
-class InheritanceRenameThreeCollisions extends SuperclassCollision
-//    ^
-// [web] The following class members collide with the same export 'field': InheritanceRenameThreeCollisions.fieldDerived, MixinCollision.fieldMixin, MixinCollision2.fieldMixin2, SuperclassCollision.fieldSuper.
-// [web] The following class members collide with the same export 'finalField': InheritanceRenameThreeCollisions.finalFieldDerived, MixinCollision.finalFieldMixin, MixinCollision2.finalFieldMixin2, SuperclassCollision.finalFieldSuper.
-// [web] The following class members collide with the same export 'getSet': InheritanceRenameThreeCollisions.getSetDerived, InheritanceRenameThreeCollisions.getSetDerived, MixinCollision.getSetMixin, MixinCollision.getSetMixin, MixinCollision2.getSetMixin2, MixinCollision2.getSetMixin2, SuperclassCollision.getSetSuper, SuperclassCollision.getSetSuper.
-// [web] The following class members collide with the same export 'method': InheritanceRenameThreeCollisions.methodDerived, MixinCollision.methodMixin, MixinCollision2.methodMixin2, SuperclassCollision.methodSuper.
-    with
-        MixinCollision,
-        MixinCollision2 {
-  @JSExport('field')
-  int fieldDerived = throw '';
-  @JSExport('finalField')
-  final int finalFieldDerived = throw '';
-  @JSExport('getSet')
-  int get getSetDerived => throw '';
-  @JSExport('getSet')
-  set getSetDerived(int val) => throw '';
-  @JSExport('method')
-  void methodDerived() => throw '';
-}
-
-// No collision if superclass doesn't contain any members marked for export.
-class SuperclassNoMembers {
-  int field = throw '';
-  final int finalField = throw '';
-  int get getSet => throw '';
-  set getSet(int val) => throw '';
-  void method() => throw '';
-}
-
-class InheritanceNoSuperclassMembers extends SuperclassNoMembers {
-  @JSExport('field')
-  int fieldDerived = throw '';
-  @JSExport('finalField')
-  final int finalFieldDerived = throw '';
-  @JSExport('getSet')
-  int get getSetDerived => throw '';
-  @JSExport('getSet')
-  set getSetDerived(int val) => throw '';
-  @JSExport('method')
-  void methodDerived() => throw '';
-}
-
-class Fields {
-  int getterField = throw '';
-  int setterField = throw '';
-}
-
-// These partial overrides are okay, as there's still one getter and one setter
-// per name.
-@JSExport()
-class PartialOverrideFieldNoCollision extends Fields {
-  set getterField(int val) => throw '';
-  int get setterField => throw '';
-}
-
-@JSExport()
-class GetSet {
-  int get getter => throw '';
-  set setter(int val) => throw '';
-}
-
-// Getters and setters through inheritance should be okay.
-@JSExport()
-class GetSetInheritanceNoCollision extends Fields {
-  int get setter => throw '';
-  set getter(int val) => throw '';
-}
-
-void main() {
-  createDartExport(InheritanceOneOverrideNoCollision());
-  createDartExport(InheritanceTwoOverridesNoCollision());
-  createDartExport(InheritanceThreeOverridesNoCollision());
-
-  createDartExport(InheritanceRenameOneCollision());
-  createDartExport(InheritanceRenameTwoCollisions());
-  createDartExport(InheritanceRenameThreeCollisions());
-
-  createDartExport(InheritanceNoSuperclassMembers());
-
-  createDartExport(PartialOverrideFieldNoCollision());
-  createDartExport(GetSetInheritanceNoCollision());
-}
diff --git a/tests/lib_2/js/export/static_interop_mock/extension_conflict_test.dart b/tests/lib_2/js/export/static_interop_mock/extension_conflict_test.dart
deleted file mode 100644
index 60f1bc09819..00000000000
--- a/tests/lib_2/js/export/static_interop_mock/extension_conflict_test.dart
+++ /dev/null
@@ -1,104 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that `createStaticInteropMock` checks for extension member conflicts.
-// We should only require users to implement one of these conflicts (or a
-// getter/setter pair).
-
-import 'package:js/js.dart';
-import 'package:js/js_util.dart';
-
-@JS()
-@staticInterop
-class SameKindConflict {}
-
-extension E1 on SameKindConflict {
-  external int get getter;
-  external set setter(int val);
-  external int method();
-}
-
-extension E2 on SameKindConflict {
-  external String get getter;
-  external set setter(int val);
-  external String method();
-}
-
-@JSExport()
-class DartSameKindConflict {
-  String getter = '';
-  set setter(int val) => throw '';
-  String method() => throw '';
-}
-
-@JSExport()
-class IncorrectDartSameKindConflict {
-  bool getter = true;
-  set setter(bool val) => throw '';
-  bool method() => throw '';
-}
-
-void testSameKindConflict() {
-  // No error as one of the extension members are implemented for each export
-  // name.
-  createStaticInteropMock<SameKindConflict, DartSameKindConflict>(
-      DartSameKindConflict());
-  // Error as none of them are implemented for each export name.
-  createStaticInteropMock<SameKindConflict, IncorrectDartSameKindConflict>(
-//^
-// [web] Dart class 'IncorrectDartSameKindConflict' does not have any members that implement any of the following extension member(s) with export name 'getter': E1.getter (FunctionType(int Function())), E2.getter (FunctionType(String Function())).
-// [web] Dart class 'IncorrectDartSameKindConflict' does not have any members that implement any of the following extension member(s) with export name 'method': E1.method (FunctionType(int Function())), E2.method (FunctionType(String Function())).
-// [web] Dart class 'IncorrectDartSameKindConflict' does not have any members that implement any of the following extension member(s) with export name 'setter': E1.setter= (FunctionType(void Function(int))), E2.setter= (FunctionType(void Function(int))).
-      IncorrectDartSameKindConflict());
-}
-
-@JS()
-@staticInterop
-class DifferentKindConflict {}
-
-extension E3 on DifferentKindConflict {
-  external int getSet;
-  @JS('getSet')
-  external void method();
-}
-
-@JSExport()
-class ImplementGetter {
-  int get getSet => throw '';
-}
-
-@JSExport()
-class ImplementSetter {
-  set getSet(int val) => throw '';
-}
-
-@JSExport()
-class ImplementBoth {
-  int getSet = 0;
-}
-
-@JSExport()
-class ImplementMethod {
-  void getSet() {}
-}
-
-void testDifferentKindConflict() {
-  // Missing setter error.
-  createStaticInteropMock<DifferentKindConflict, ImplementGetter>(
-//^
-// [web] Dart class 'ImplementGetter' has a getter, but does not have a setter to implement any of the following extension member(s) with export name 'getSet': E3.getSet= (FunctionType(void Function(int))).
-      ImplementGetter());
-  // Missing getter error.
-  createStaticInteropMock<DifferentKindConflict, ImplementSetter>(
-//^
-// [web] Dart class 'ImplementSetter' has a setter, but does not have a getter to implement any of the following extension member(s) with export name 'getSet': E3.getSet (FunctionType(int Function())).
-      ImplementSetter());
-  // No error as both getter and setter are there, and we've satisfied an export
-  // for `getSet`.
-  createStaticInteropMock<DifferentKindConflict, ImplementBoth>(
-      ImplementBoth());
-  // No error as we've satisfied an export for `getSet`.
-  createStaticInteropMock<DifferentKindConflict, ImplementMethod>(
-      ImplementMethod());
-}
diff --git a/tests/lib_2/js/export/static_interop_mock/functional_test.dart b/tests/lib_2/js/export/static_interop_mock/functional_test.dart
deleted file mode 100644
index a43df9af44a..00000000000
--- a/tests/lib_2/js/export/static_interop_mock/functional_test.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'functional_test_lib.dart';
-
-void main() {
-  test();
-}
diff --git a/tests/lib_2/js/export/static_interop_mock/functional_test_lib.dart b/tests/lib_2/js/export/static_interop_mock/functional_test_lib.dart
deleted file mode 100644
index 2994caf2ea0..00000000000
--- a/tests/lib_2/js/export/static_interop_mock/functional_test_lib.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test basic functionality of `createStaticInteropMock`. Basic methods, fields
-// (final and not), getters, and setters are tested along with potential
-// renames.
-
-@JS()
-library functional_test_lib;
-
-import 'dart:js_interop';
-
-import 'package:expect/minitest.dart';
-import 'package:js/js_util.dart';
-
-@JS()
-@staticInterop
-class Methods {}
-
-extension on Methods {
-  external String concat(String foo, String bar);
-  // Sanity-check that non-externals are unaffected.
-  String nonExternal() => 'nonExternal';
-  @JS('_rename')
-  external String rename();
-  external String optionalConcat(String foo, String bar,
-      [String boo, String? baz]);
-}
-
-@JSExport()
-class MethodsDart {
-  String concat(String foo, String bar) => foo + bar;
-  String nonExternal() => 'initialized';
-  String _rename() => 'initialized';
-  String optionalConcat(String foo, String bar, [String? boo, String? baz]) =>
-      foo + bar + (boo ?? '') + (baz ?? '');
-}
-
-@JS()
-@staticInterop
-class Fields {}
-
-extension on Fields {
-  external String field;
-  external final String finalField;
-  @JS('_renamedField')
-  external String renamedField;
-  @JS('_renamedFinalField')
-  external final String renamedFinalField;
-}
-
-@JSExport()
-class FieldsDart {
-  String field = 'initialized';
-  String finalField = 'initialized';
-  String _renamedField = 'initialized';
-  final String _renamedFinalField = 'initialized';
-}
-
-@JS()
-@staticInterop
-class GetSet {}
-
-extension on GetSet {
-  external String get getSet;
-  external set getSet(String val);
-  @JS('_renamedGetSet')
-  external String get renamedGetSet;
-  @JS('_renamedGetSet')
-  external set renamedGetSet(String val);
-  @JS('_sameNameDifferentRenameGet')
-  external String get sameNameDifferentRename;
-  @JS('_sameNameDifferentRenameSet')
-  external set sameNameDifferentRename(String val);
-  @JS('_differentNameSameRename')
-  external String get differentNameSameRenameGet;
-  @JS('_differentNameSameRename')
-  external set differentNameSameRenameSet(String val);
-}
-
-@JSExport()
-class GetSetDart {
-  String getSet = 'initialized';
-  String _renamedGetSet = 'initialized';
-  String _sameNameDifferentRenameGet = 'initialized';
-  String _sameNameDifferentRenameSet = 'initialized';
-  String _differentNameSameRename = 'initialized';
-}
-
-@JS()
-@staticInterop
-class Supersupertype {}
-
-@JS()
-@staticInterop
-class Supertype<T extends JSObject> implements Supersupertype {}
-
-extension SupertypeExtension<T extends JSObject> on Supertype<T> {
-  external T superMethod(T param);
-}
-
-// Note that even though `Supertype` is instantiated with `JSArray`, we still
-// require users to implement `superMethod` using the `JSObject` bound.
-// Functionally, this means `superMethod` needs to accept a `JSObject` (or a
-// supertype), even though an object typed `Params` can never actually call
-// `superMethod` with a type less specific than `JSArray`. This is probably
-// rare, but can be a bit frustrating. A similar analysis can be made for the
-// type parameters on `Params`. A user may want to mock only a
-// `Params<JSArray, Params>`, but we require them to mock a
-// `Params<JSObject, Supertype>` as those are the bounds. Unlike the
-// `superMethod` case however, we have an error check when trying to pass in
-// such a type to `createStaticInteropMock` to reduce confusion.
-@JS()
-@staticInterop
-class Params<T extends JSObject, U extends Supertype>
-    extends Supertype<JSArray> {
-  external factory Params();
-}
-
-extension ParamsExtension<T extends JSObject, U extends Supertype>
-    on Params<T, U> {
-  external T get getSet;
-  external set getSet(T val);
-  external T method(T param);
-  external U interopTypeMethod(U param);
-  external V genericMethod<V extends JSObject>(V param);
-}
-
-late JSObject _jsObject;
-
-@JSExport()
-class ParamsImpl<S extends JSObject, T extends JSObject, U extends Supertype> {
-  S superMethod(S param) => param;
-
-  T get getSet => _jsObject as T;
-  set getSet(T val) => _jsObject = val;
-  T method(T param) => param;
-  U interopTypeMethod(U param) => param;
-  JSObject genericMethod(JSObject param) => param;
-}
-
-void test([Object? proto]) {
-  var jsMethods =
-      createStaticInteropMock<Methods, MethodsDart>(MethodsDart(), proto);
-  expect(jsMethods.concat('a', 'b'), 'ab');
-  expect(jsMethods.nonExternal(), 'nonExternal');
-  expect(jsMethods.rename(), 'initialized');
-  expect(jsMethods.optionalConcat('a', 'b'), 'ab');
-  expect(jsMethods.optionalConcat('a', 'b', 'c'), 'abc');
-  expect(jsMethods.optionalConcat('a', 'b', 'c', 'd'), 'abcd');
-  var dartFields = FieldsDart();
-  var jsFields = createStaticInteropMock<Fields, FieldsDart>(dartFields, proto);
-  expect(jsFields.field, 'initialized');
-  expect(jsFields.finalField, 'initialized');
-  expect(jsFields.renamedField, 'initialized');
-  expect(jsFields.renamedFinalField, 'initialized');
-  // Modify the JS mock and check for updates in the Dart mock.
-  jsFields.field = 'jsModified';
-  jsFields.renamedField = 'jsModified';
-  expect(dartFields.field, 'jsModified');
-  expect(dartFields._renamedField, 'jsModified');
-  // Modify the Dart mock and check for updates in the JS mock.
-  dartFields.field = 'dartModified';
-  dartFields.finalField = 'dartModified';
-  dartFields._renamedField = 'dartModified';
-  expect(jsFields.field, 'dartModified');
-  expect(jsFields.finalField, 'dartModified');
-  expect(jsFields.renamedField, 'dartModified');
-  var dartGetSet = GetSetDart();
-  var jsGetSet = createStaticInteropMock<GetSet, GetSetDart>(dartGetSet, proto);
-  expect(jsGetSet.getSet, 'initialized');
-  expect(jsGetSet.renamedGetSet, 'initialized');
-  expect(jsGetSet.sameNameDifferentRename, 'initialized');
-  expect(jsGetSet.differentNameSameRenameGet, 'initialized');
-  // Modify the JS mock and check for updates in the Dart mock.
-  jsGetSet.getSet = 'jsModified';
-  jsGetSet.renamedGetSet = 'jsModified';
-  jsGetSet.sameNameDifferentRename = 'jsModified';
-  jsGetSet.differentNameSameRenameSet = 'jsModified';
-  expect(dartGetSet.getSet, 'jsModified');
-  expect(dartGetSet._renamedGetSet, 'jsModified');
-  expect(dartGetSet._sameNameDifferentRenameGet, 'initialized');
-  expect(dartGetSet._sameNameDifferentRenameSet, 'jsModified');
-  expect(dartGetSet._differentNameSameRename, 'jsModified');
-  // Modify the Dart mock and check for updates in the JS mock.
-  dartGetSet.getSet = 'dartModified';
-  dartGetSet._renamedGetSet = 'dartModified';
-  // Use different values to disambiguate.
-  dartGetSet._sameNameDifferentRenameGet = 'dartModifiedGet';
-  dartGetSet._sameNameDifferentRenameSet = 'dartModifiedSet';
-  dartGetSet._differentNameSameRename = 'dartModified';
-  expect(jsGetSet.getSet, 'dartModified');
-  expect(jsGetSet.renamedGetSet, 'dartModified');
-  expect(jsGetSet.sameNameDifferentRename, 'dartModifiedGet');
-  expect(jsGetSet.differentNameSameRenameGet, 'dartModified');
-  // Calling members with type parameters.
-  final jsParams = createStaticInteropMock<Params, ParamsImpl>(ParamsImpl());
-  final jsArray = JSArray();
-  expect(jsParams.superMethod(jsArray), jsArray);
-  _jsObject = newObject<JSObject>();
-  expect(jsParams.getSet, _jsObject);
-  final newJsObject = newObject<JSObject>();
-  jsParams.getSet = newJsObject;
-  expect(jsParams.getSet, newJsObject);
-  expect(jsParams.method(_jsObject), _jsObject);
-  expect(jsParams.interopTypeMethod(_jsObject as Supertype), _jsObject);
-  expect(jsParams.genericMethod(_jsObject), _jsObject);
-  expect(jsParams.genericMethod<JSObject>(_jsObject), _jsObject);
-  expect(jsParams.genericMethod<JSArray>(jsArray), jsArray);
-}
diff --git a/tests/lib_2/js/export/static_interop_mock/incorrect_type_arguments_test.dart b/tests/lib_2/js/export/static_interop_mock/incorrect_type_arguments_test.dart
deleted file mode 100644
index 7ea01b21e66..00000000000
--- a/tests/lib_2/js/export/static_interop_mock/incorrect_type_arguments_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that `createStaticInteropMock` checks its type arguments.
-
-import 'package:js/js.dart';
-import 'package:js/js_util.dart';
-
-@JS()
-class Js {
-  external Js();
-}
-
-@JS()
-@anonymous
-class Anonymous {
-  external factory Anonymous();
-}
-
-@JS()
-@staticInterop
-class StaticInterop {
-  external factory StaticInterop();
-}
-
-@JSExport()
-class Dart {
-  int _unused = 0;
-}
-
-void main() {
-  createStaticInteropMock<StaticInterop, Dart>(Dart());
-  createStaticInteropMock<Dart, StaticInterop>(StaticInterop());
-//^
-// [web] Type argument 'Dart' needs to be a `@staticInterop` type.
-// [web] Type argument 'StaticInterop' needs to be a non-JS interop type.
-  createStaticInteropMock<Dart, Js>(Js());
-//^
-// [web] Type argument 'Dart' needs to be a `@staticInterop` type.
-// [web] Type argument 'Js' needs to be a non-JS interop type.
-  createStaticInteropMock<Dart, Anonymous>(Anonymous());
-//^
-// [web] Type argument 'Anonymous' needs to be a non-JS interop type.
-// [web] Type argument 'Dart' needs to be a `@staticInterop` type.
-  createStaticInteropMock<StaticInterop, void Function()>(() {});
-//^
-// [web] Type argument 'void Function()' needs to be an interface type.
-  createStaticInteropMock(Dart());
-//^
-// [web] Type argument 'Object' needs to be a `@staticInterop` type.
-}
diff --git a/tests/lib_2/js/export/static_interop_mock/inheritance_test.dart b/tests/lib_2/js/export/static_interop_mock/inheritance_test.dart
deleted file mode 100644
index 201a5dc1037..00000000000
--- a/tests/lib_2/js/export/static_interop_mock/inheritance_test.dart
+++ /dev/null
@@ -1,132 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// @dart=2.19
-
-// TODO(51557): Decide if the mixins being applied in this test should be
-// "mixin", "mixin class" or the test should be left at 2.19.
-// @dart=2.19
-
-// Test that @staticInterop extension methods are collected from all extensions,
-// including inheritance.
-
-import 'package:expect/minitest.dart';
-import 'package:js/js.dart';
-import 'package:js/js_util.dart';
-
-@JS()
-@staticInterop
-class Extends {}
-
-extension on Extends {
-  external String extendsMethod(String val);
-  external String extendsField;
-  external final String extendsFinalField;
-  external String get extendsGetSet;
-  external set extendsGetSet(String val);
-}
-
-@JS()
-@staticInterop
-class Implements {}
-
-extension on Implements {
-  external String implementsMethod(String val);
-  external String implementsField;
-  external final String implementsFinalField;
-  @JS('implementsGetSet')
-  external String get implementsGetter;
-  @JS('implementsGetSet')
-  external set implementsSetter(String val);
-}
-
-@JS()
-@staticInterop
-class Inheritance extends Extends implements Implements {}
-
-extension on Inheritance {
-  external String method(String val);
-  external String field;
-  external final String finalField;
-  external String get getSet;
-  external set getSet(String val);
-}
-
-extension on Inheritance {
-  external String method2(String val);
-  external String field2;
-  external final String finalField2;
-  external String get getSet2;
-  external set getSet2(String val);
-}
-
-@JSExport()
-class ExtendsDart {
-  String extendsMethod(String val) => val;
-  String extendsField = 'extends';
-  final String extendsFinalField = 'extends';
-  String extendsGetSet = 'extends';
-}
-
-@JSExport()
-class ImplementsMixin {
-  String implementsMethod(String val) => val;
-  String implementsField = 'implements';
-  final String implementsFinalField = 'implements';
-  String implementsGetSet = 'implements';
-}
-
-@JSExport()
-class InheritanceDart extends ExtendsDart with ImplementsMixin {
-  String method(String val) => val;
-  String field = 'derived';
-  final String finalField = 'derived';
-  String getSet = 'derived';
-  String method2(String val) => val;
-  String field2 = 'derived';
-  final String finalField2 = 'derived';
-  String getSet2 = 'derived';
-}
-
-void main() {
-  var dartMock = InheritanceDart();
-  var jsMock = createStaticInteropMock<Inheritance, InheritanceDart>(dartMock);
-
-  expect(jsMock.extendsMethod('extends'), 'extends');
-  expect(jsMock.extendsField, 'extends');
-  jsMock.extendsField = 'modified';
-  expect(jsMock.extendsField, 'modified');
-  expect(jsMock.extendsFinalField, 'extends');
-  expect(jsMock.extendsGetSet, 'extends');
-  // Dart mock uses a field for this getter and setter, so it should change.
-  jsMock.extendsGetSet = 'modified';
-  expect(jsMock.extendsGetSet, 'modified');
-
-  expect(jsMock.implementsMethod('implements'), 'implements');
-  expect(jsMock.implementsField, 'implements');
-  jsMock.implementsField = 'modified';
-  expect(jsMock.implementsField, 'modified');
-  expect(jsMock.implementsFinalField, 'implements');
-  expect(jsMock.implementsGetter, 'implements');
-  jsMock.implementsSetter = 'modified';
-  expect(jsMock.implementsGetter, 'modified');
-
-  expect(jsMock.method('derived'), 'derived');
-  expect(jsMock.field, 'derived');
-  jsMock.field = 'modified';
-  expect(jsMock.field, 'modified');
-  expect(jsMock.finalField, 'derived');
-  expect(jsMock.getSet, 'derived');
-  jsMock.getSet = 'modified';
-  expect(jsMock.getSet, 'modified');
-
-  expect(jsMock.method2('derived'), 'derived');
-  expect(jsMock.field2, 'derived');
-  jsMock.field2 = 'modified';
-  expect(jsMock.field2, 'modified');
-  expect(jsMock.finalField2, 'derived');
-  expect(jsMock.getSet2, 'derived');
-  jsMock.getSet2 = 'modified';
-  expect(jsMock.getSet2, 'modified');
-}
diff --git a/tests/lib_2/js/export/static_interop_mock/mockito_test.dart b/tests/lib_2/js/export/static_interop_mock/mockito_test.dart
deleted file mode 100644
index 100999f1a46..00000000000
--- a/tests/lib_2/js/export/static_interop_mock/mockito_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that using `createStaticInteropMock` with pkg:mockito works as expected.
-
-import 'package:expect/minitest.dart';
-import 'package:js/js.dart';
-import 'package:js/js_util.dart';
-import 'package:mockito/mockito.dart';
-
-@JS()
-@staticInterop
-class StaticInterop {}
-
-extension on StaticInterop {
-  // We use nullable types here as mockito requires some additional complexity
-  // or code generation to safely mock non-nullables.
-  // https://github.com/dart-lang/mockito/blob/master/NULL_SAFETY_README.md
-  external String? method(String? val);
-  external String? field;
-  external final String? finalField;
-  external String? get getSet;
-  external set getSet(String? val);
-}
-
-@JSExport()
-class Dart {
-  String? method(String? val) => throw '';
-  String? field = throw '';
-  final String? finalField = throw '';
-  String? get getSet => throw '';
-  set getSet(String? val) => throw '';
-}
-
-// Have the mock class implement the class interface you defined to mock the
-// @staticInterop interface.
-@JSExport()
-class DartMock extends Mock implements Dart {}
-
-void main() {
-  // Write expectations on the Dart Mock object, not the JS mock object.
-  var dartMock = DartMock();
-  var jsMock = createStaticInteropMock<StaticInterop, DartMock>(dartMock);
-  when(dartMock.method('value')).thenReturn('mockValue');
-  when(dartMock.field).thenReturn('mockValue');
-  when(dartMock.finalField).thenReturn('mockValue');
-  when(dartMock.getSet).thenReturn('mockValue');
-  expect(jsMock.method('value'), 'mockValue');
-  expect(jsMock.field, 'mockValue');
-  expect(jsMock.finalField, 'mockValue');
-  expect(jsMock.getSet, 'mockValue');
-  jsMock.getSet = 'mockValue';
-  verify(dartMock.getSet = 'mockValue');
-}
diff --git a/tests/lib_2/js/export/static_interop_mock/proto_test.dart b/tests/lib_2/js/export/static_interop_mock/proto_test.dart
deleted file mode 100644
index 1e14a48a915..00000000000
--- a/tests/lib_2/js/export/static_interop_mock/proto_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that providing a proto object to createStaticInteropMock does not break
-// any functionality, and allows instanceof/is checks to pass.
-
-@JS()
-library proto_test;
-
-import 'dart:html';
-
-import 'package:expect/minitest.dart';
-import 'package:js/js.dart';
-import 'package:js/js_util.dart';
-
-import 'functional_test_lib.dart' as functional_test;
-
-@JS('Window.prototype')
-external Object get windowProto;
-
-@JS('Window')
-external Object get windowType;
-
-@JS()
-@staticInterop
-class JSWindow {}
-
-@JSExport()
-class DartWindow {
-  int _unused = 0;
-}
-
-void main() {
-  // Test that everything still works the same.
-  functional_test.test(windowProto);
-  // Test instanceof/is checks.
-  var jsMock =
-      createStaticInteropMock<JSWindow, DartWindow>(DartWindow(), windowProto);
-  expect(jsMock is Window, true);
-  expect(instanceof(jsMock, windowType), true);
-}
diff --git a/tests/lib_2/js/export/static_interop_mock/subtype_overrides_test.dart b/tests/lib_2/js/export/static_interop_mock/subtype_overrides_test.dart
deleted file mode 100644
index d5ca982e9a2..00000000000
--- a/tests/lib_2/js/export/static_interop_mock/subtype_overrides_test.dart
+++ /dev/null
@@ -1,196 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that `createStaticInteropMock` checks that overrides exist and are
-// subtypes.
-
-import 'package:js/js.dart';
-import 'package:js/js_util.dart';
-
-@JS()
-@staticInterop
-class StaticInterop {}
-
-extension on StaticInterop {
-  external int field;
-  external final int finalField;
-  external int get getSet1;
-  external set getSet1(int val);
-  external int get getSet2;
-  external set getSet2(int val);
-  external void method();
-}
-
-@JSExport()
-class CorrectDart {
-  int field = throw '';
-  final int finalField = throw '';
-  int get getSet1 => throw '';
-  set getSet1(int val) => throw '';
-  int get getSet2 => throw '';
-  set getSet2(int val) => throw '';
-  void method() => throw '';
-}
-
-@JSExport()
-class IncorrectDart {
-  IncorrectDart();
-  // Factories do not count.
-  factory IncorrectDart.method() => IncorrectDart();
-  // Setter is not implemented.
-  final int field = throw '';
-  // Static members do not count.
-  static final int finalField = throw '';
-  // Getter is not implemented.
-  set getSet1(int val) => throw '';
-  int get getSet2 => throw '';
-}
-
-extension on IncorrectDart {
-  // Extension members do not count.
-  set getSet2(int val) => throw '';
-}
-
-void testMissingOverrides() {
-  createStaticInteropMock<StaticInterop, CorrectDart>(CorrectDart());
-  createStaticInteropMock<StaticInterop, IncorrectDart>(IncorrectDart());
-//^
-// [web] Dart class 'IncorrectDart' does not have any members that implement any of the following extension member(s) with export name 'finalField': <unnamed>.finalField (FunctionType(int Function())).
-// [web] Dart class 'IncorrectDart' does not have any members that implement any of the following extension member(s) with export name 'method': <unnamed>.method (FunctionType(void Function())).
-// [web] Dart class 'IncorrectDart' has a getter, but does not have a setter to implement any of the following extension member(s) with export name 'field': <unnamed>.field= (FunctionType(void Function(int))).
-// [web] Dart class 'IncorrectDart' has a getter, but does not have a setter to implement any of the following extension member(s) with export name 'getSet2': <unnamed>.getSet2= (FunctionType(void Function(int))).
-// [web] Dart class 'IncorrectDart' has a setter, but does not have a getter to implement any of the following extension member(s) with export name 'getSet1': <unnamed>.getSet1 (FunctionType(int Function())).
-}
-
-// Set up a simple type hierarchy.
-class A {
-  const A();
-}
-
-class B extends A {
-  const B();
-}
-
-class C extends B {
-  const C();
-}
-
-@JS()
-@staticInterop
-class SimpleInterop {}
-
-extension SimpleInteropExtension on SimpleInterop {
-  external B field;
-  external final B finalField;
-  external B get getSet;
-  external set getSet(B val);
-  external B method(B b);
-}
-
-// Implement using the exact same types.
-@JSExport()
-class SimpleDart {
-  B field = throw '';
-  final B finalField = throw '';
-  B get getSet => throw '';
-  set getSet(B val) => throw '';
-  B method(B b) => throw '';
-}
-
-void testExactTypes() {
-  createStaticInteropMock<SimpleInterop, SimpleDart>(SimpleDart());
-}
-
-// Implement using subtypes.
-@JSExport()
-class SubtypeSimpleDart {
-  B field = throw '';
-  final C finalField = throw '';
-  C get getSet => throw '';
-  set getSet(A val) => throw '';
-  C method(A a) => throw '';
-}
-
-void testSimpleSubtyping() {
-  createStaticInteropMock<SimpleInterop, SubtypeSimpleDart>(
-      SubtypeSimpleDart());
-}
-
-// Implement using supertypes (which shouldn't work).
-@JSExport()
-class SupertypeSimpleDart {
-  A field = throw '';
-  final A finalField = throw '';
-  // Getter must be subtype of setter, so only the setter should be an error.
-  C get getSet => throw '';
-  set getSet(C val) => throw '';
-  A method(C c) => throw '';
-}
-
-void testIncorrectSimpleSubtyping() {
-  createStaticInteropMock<SimpleInterop, SupertypeSimpleDart>(
-//^
-// [web] Dart class 'SupertypeSimpleDart' does not have any members that implement any of the following extension member(s) with export name 'finalField': SimpleInteropExtension.finalField (FunctionType(B Function())).
-// [web] Dart class 'SupertypeSimpleDart' does not have any members that implement any of the following extension member(s) with export name 'method': SimpleInteropExtension.method (FunctionType(B Function(B))).
-// [web] Dart class 'SupertypeSimpleDart' has a getter, but does not have a setter to implement any of the following extension member(s) with export name 'getSet': SimpleInteropExtension.getSet= (FunctionType(void Function(B))).
-// [web] Dart class 'SupertypeSimpleDart' has a setter, but does not have a getter to implement any of the following extension member(s) with export name 'field': SimpleInteropExtension.field (FunctionType(B Function())).
-      SupertypeSimpleDart());
-}
-
-@JS()
-@staticInterop
-class ComplexAndOptionalInteropMethods {}
-
-extension ComplexAndOptionalInteropMethodsExtension
-    on ComplexAndOptionalInteropMethods {
-  external B Function(B _) nestedTypes(List<B> arg1, Map<Set<B>, B> arg2);
-  external B optional(B b, [B? b2]);
-  external B optionalSubtype(B b, [B b2 = const B()]);
-}
-
-@JSExport()
-class ComplexAndOptionalDart {
-  C Function(A _) nestedTypes(List<B> arg1, Map<Set<B>, B> arg2) => throw '';
-  B optional(B b, [B? b2]) => throw '';
-  C optionalSubtype(A a, [A? a2]) => throw '';
-}
-
-void testComplexSubtyping() {
-  createStaticInteropMock<ComplexAndOptionalInteropMethods,
-      ComplexAndOptionalDart>(ComplexAndOptionalDart());
-}
-
-@JSExport()
-class IncorrectComplexAndOptionalDart {
-  // List type is wrong.
-  B Function(B _) nestedTypes(List<List<B>> arg1, Map<Set<B>, B> arg2) =>
-      throw '';
-  // Second argument is not optional, this is invalid.
-  B optional(B b, B? b2) => throw '';
-  // Third argument is supposed to be a supertype, not a subtype.
-  B optionalSubtype(B b, [C c = const C()]) => throw '';
-}
-
-void testIncorrectComplexSubtyping() {
-  createStaticInteropMock<
-//^
-// [web] Dart class 'IncorrectComplexAndOptionalDart' does not have any members that implement any of the following extension member(s) with export name 'nestedTypes': ComplexAndOptionalInteropMethodsExtension.nestedTypes (FunctionType(B Function(B) Function(List<B>, Map<Set<B>, B>))).
-// [web] Dart class 'IncorrectComplexAndOptionalDart' does not have any members that implement any of the following extension member(s) with export name 'optional': ComplexAndOptionalInteropMethodsExtension.optional (FunctionType(B Function(B, [B?]))).
-// [web] Dart class 'IncorrectComplexAndOptionalDart' does not have any members that implement any of the following extension member(s) with export name 'optionalSubtype': ComplexAndOptionalInteropMethodsExtension.optionalSubtype (FunctionType(B Function(B, [B]))).
-      ComplexAndOptionalInteropMethods,
-      IncorrectComplexAndOptionalDart>(IncorrectComplexAndOptionalDart());
-}
-
-void testSubtyping() {
-  testExactTypes();
-  testSimpleSubtyping();
-  testIncorrectSimpleSubtyping();
-  testComplexSubtyping();
-  testIncorrectComplexSubtyping();
-}
-
-void main() {
-  testMissingOverrides();
-  testSubtyping();
-}
diff --git a/tests/lib_2/js/export/static_interop_mock/type_parameter_static_test.dart b/tests/lib_2/js/export/static_interop_mock/type_parameter_static_test.dart
deleted file mode 100644
index 9d933ce2d76..00000000000
--- a/tests/lib_2/js/export/static_interop_mock/type_parameter_static_test.dart
+++ /dev/null
@@ -1,101 +0,0 @@
-// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that `createStaticInteropMock` correctly instantiates to bounds for type
-// parameters.
-
-import 'dart:js_interop';
-import 'package:js/js_util.dart';
-
-import 'functional_test_lib.dart';
-
-@JSExport()
-class Valid {
-  JSArray superMethod(JSAny param) => throw UnimplementedError();
-
-  JSArray get getSet => throw UnimplementedError();
-  set getSet(JSAny val) => throw UnimplementedError();
-  JSArray method(JSAny param) => throw UnimplementedError();
-  Params interopTypeMethod(Supertype param) => throw UnimplementedError();
-  JSArray genericMethod(JSAny param) => throw UnimplementedError();
-}
-
-@JSExport()
-class Invalid {
-  JSAny superMethod(JSArray param) => throw UnimplementedError();
-
-  @JSExport('getSet') // Rename to avoid getter/setter type conflicts.
-  JSAny get getter => throw UnimplementedError();
-  set getSet(JSArray val) => throw UnimplementedError();
-  JSAny method(JSArray param) => throw UnimplementedError();
-  Supersupertype interopTypeMethod(Params param) => throw UnimplementedError();
-  JSAny genericMethod(JSArray param) => throw UnimplementedError();
-}
-
-@JSExport()
-class InvalidContravariant {
-  JSArray superMethod(JSArray param) => throw UnimplementedError();
-
-  JSArray get getSet => throw UnimplementedError();
-  set getSet(JSArray val) => throw UnimplementedError();
-  JSArray method(JSArray param) => throw UnimplementedError();
-  Params interopTypeMethod(Params param) => throw UnimplementedError();
-  JSArray genericMethod(JSArray param) => throw UnimplementedError();
-}
-
-@JSExport()
-class InvalidCovariant {
-  JSAny superMethod(JSAny param) => throw UnimplementedError();
-
-  JSAny get getSet => throw UnimplementedError();
-  set getSet(JSAny val) => throw UnimplementedError();
-  JSAny method(JSAny param) => throw UnimplementedError();
-  Supersupertype interopTypeMethod(Supersupertype param) =>
-      throw UnimplementedError();
-  JSAny genericMethod(JSAny param) => throw UnimplementedError();
-}
-
-void main() {
-  createStaticInteropMock<
-//^
-// [web] Type argument 'Params<JSArray, Params<JSObject, Supertype<JSObject>>>' has type parameters that do not match their bound. createStaticInteropMock requires instantiating all type parameters to their bound to ensure mocking conformance.
-// [web] Type argument 'ParamsImpl<JSArray, JSArray, Params<JSObject, Supertype<JSObject>>>' has type parameters that do not match their bound. createStaticInteropMock requires instantiating all type parameters to their bound to ensure mocking conformance.
-          Params<JSArray, Params>,
-          ParamsImpl<JSArray, JSArray, Params>>(
-      ParamsImpl<JSArray, JSArray, Params>());
-  createStaticInteropMock<Params<JSObject, Supertype>,
-          ParamsImpl<JSObject, JSObject, Supertype>>(
-      ParamsImpl<JSObject, JSObject, Supertype>());
-
-  // Note that this is fine, but might fail at runtime due to runtime covariant
-  // checks. This is no different than casting a `List<JSObject>` to `List` and
-  // trying to add a `JSString`. On the JS backends, this will fail, and on
-  // dart2wasm, this will succeed because all JS types get erased to JSValue.
-  createStaticInteropMock<Params, ParamsImpl>(
-      ParamsImpl<JSArray, JSArray, Supertype>());
-  createStaticInteropMock<Params, ParamsImpl>(ParamsImpl());
-  createStaticInteropMock<Params, Valid>(Valid());
-
-  createStaticInteropMock<Params, Invalid>(Invalid());
-//^
-// [web] Dart class 'Invalid' does not have any members that implement any of the following extension member(s) with export name 'genericMethod': ParamsExtension.genericMethod (FunctionType(JSObject Function(JSObject))).
-// [web] Dart class 'Invalid' does not have any members that implement any of the following extension member(s) with export name 'getSet': ParamsExtension.getSet (FunctionType(JSObject Function())), ParamsExtension.getSet= (FunctionType(void Function(JSObject))).
-// [web] Dart class 'Invalid' does not have any members that implement any of the following extension member(s) with export name 'interopTypeMethod': ParamsExtension.interopTypeMethod (FunctionType(Supertype<JSObject> Function(Supertype<JSObject>))).
-// [web] Dart class 'Invalid' does not have any members that implement any of the following extension member(s) with export name 'method': ParamsExtension.method (FunctionType(JSObject Function(JSObject))).
-// [web] Dart class 'Invalid' does not have any members that implement any of the following extension member(s) with export name 'superMethod': SupertypeExtension.superMethod (FunctionType(JSObject Function(JSObject))).
-  createStaticInteropMock<Params, InvalidContravariant>(InvalidContravariant());
-//^
-// [web] Dart class 'InvalidContravariant' does not have any members that implement any of the following extension member(s) with export name 'genericMethod': ParamsExtension.genericMethod (FunctionType(JSObject Function(JSObject))).
-// [web] Dart class 'InvalidContravariant' does not have any members that implement any of the following extension member(s) with export name 'interopTypeMethod': ParamsExtension.interopTypeMethod (FunctionType(Supertype<JSObject> Function(Supertype<JSObject>))).
-// [web] Dart class 'InvalidContravariant' does not have any members that implement any of the following extension member(s) with export name 'method': ParamsExtension.method (FunctionType(JSObject Function(JSObject))).
-// [web] Dart class 'InvalidContravariant' does not have any members that implement any of the following extension member(s) with export name 'superMethod': SupertypeExtension.superMethod (FunctionType(JSObject Function(JSObject))).
-// [web] Dart class 'InvalidContravariant' has a getter, but does not have a setter to implement any of the following extension member(s) with export name 'getSet': ParamsExtension.getSet= (FunctionType(void Function(JSObject))).
-  createStaticInteropMock<Params, InvalidCovariant>(InvalidCovariant());
-//^
-// [web] Dart class 'InvalidCovariant' does not have any members that implement any of the following extension member(s) with export name 'genericMethod': ParamsExtension.genericMethod (FunctionType(JSObject Function(JSObject))).
-// [web] Dart class 'InvalidCovariant' does not have any members that implement any of the following extension member(s) with export name 'interopTypeMethod': ParamsExtension.interopTypeMethod (FunctionType(Supertype<JSObject> Function(Supertype<JSObject>))).
-// [web] Dart class 'InvalidCovariant' does not have any members that implement any of the following extension member(s) with export name 'method': ParamsExtension.method (FunctionType(JSObject Function(JSObject))).
-// [web] Dart class 'InvalidCovariant' does not have any members that implement any of the following extension member(s) with export name 'superMethod': SupertypeExtension.superMethod (FunctionType(JSObject Function(JSObject))).
-// [web] Dart class 'InvalidCovariant' has a setter, but does not have a getter to implement any of the following extension member(s) with export name 'getSet': ParamsExtension.getSet (FunctionType(JSObject Function())).
-}
diff --git a/tests/lib_2/js/export/validation_test.dart b/tests/lib_2/js/export/validation_test.dart
deleted file mode 100644
index 55777789e67..00000000000
--- a/tests/lib_2/js/export/validation_test.dart
+++ /dev/null
@@ -1,215 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Tests uses of `@JSExport` and `createDartExport`.
-
-import 'package:js/js.dart';
-import 'package:js/js_util.dart';
-
-// You can either have a @JSExport annotation on the entire class or select
-// members only, and they may contain members that are ignored.
-@JSExport()
-class ExportAll {
-  int field = throw '';
-  final int finalField = throw '';
-  int get getSet => throw '';
-  set getSet(int val) => throw '';
-  int method() => throw '';
-}
-
-class ExportSome {
-  ExportSome();
-  factory ExportSome.factory() => ExportSome();
-
-  @JSExport()
-  int field = throw '';
-  final int finalField = throw '';
-  @JSExport()
-  int get getSet => throw '';
-  set getSet(int val) => throw '';
-  @JSExport()
-  int method() => throw '';
-
-  static int staticField = throw '';
-  static void staticMethod() => throw '';
-}
-
-extension on ExportSome {
-  int extensionMethod() => throw '';
-
-  static int extensionStaticField = throw '';
-  static void extensionStaticMethod() => throw '';
-}
-
-// We should leave Dart classes with no exports alone unless used in
-// `createDartExport`.
-class NoAnnotations {
-  int field = throw '';
-  final int finalField = throw '';
-  int get getSet => throw '';
-  set getSet(int val) => throw '';
-  int method() => throw '';
-}
-
-// If there is a `@JSExport` annotation, but no exportable members, it's
-// considered an error.
-@JSExport()
-abstract class ExportNoneQualify {
-//             ^
-// [web] Class 'ExportNoneQualify' has no exportable members in the class or the inheritance chain.
-  factory ExportNoneQualify() => throw '';
-
-  abstract int abstractField;
-  void abstractMethod();
-
-  static int staticField = throw '';
-  static void staticMethod() => throw '';
-}
-
-extension on ExportNoneQualify {
-  int method() => throw '';
-
-  static int staticField = throw '';
-  static void staticMethod() => throw '';
-}
-
-@JSExport()
-class ExportEmpty {}
-//    ^
-// [web] Class 'ExportEmpty' has no exportable members in the class or the inheritance chain.
-
-// These are errors, as there are no exportable members that have the annotation
-// on them or on their class.
-@JSExport()
-class ExportWithNoExportSuperclass extends NoAnnotations {}
-//    ^
-// [web] Class 'ExportWithNoExportSuperclass' has no exportable members in the class or the inheritance chain.
-
-@JSExport()
-class ExportWithEmptyExportSuperclass extends ExportEmpty {}
-//    ^
-// [web] Class 'ExportWithEmptyExportSuperclass' has no exportable members in the class or the inheritance chain.
-
-// This isn't an error to write, but it will be when you use it as part of
-// `createDartExport`.
-class NoExportWithExportSuperclass extends ExportAll {}
-
-void testNumberOfExports() {
-  createDartExport(ExportAll());
-  createDartExport(ExportSome());
-  createDartExport(NoAnnotations());
-//^
-// [web] Class 'NoAnnotations' does not have a `@JSExport` on it or any of its members.
-  createDartExport(ExportNoneQualify());
-  createDartExport(ExportEmpty());
-  createDartExport(ExportWithNoExportSuperclass());
-  createDartExport(ExportWithEmptyExportSuperclass());
-  createDartExport(NoExportWithExportSuperclass());
-//^
-// [web] Class 'NoExportWithExportSuperclass' does not have a `@JSExport` on it or any of its members.
-}
-
-@JS()
-@staticInterop
-class StaticInterop {
-  external factory StaticInterop();
-}
-
-typedef InvalidType = void Function();
-
-void testUseDartInterface() {
-  // Needs to be an interface type.
-  createDartExport<InvalidType>(() {});
-//^
-// [web] Type argument 'void Function()' needs to be an interface type.
-
-  // Can't use an interop class.
-  createDartExport(StaticInterop());
-//^
-// [web] Type argument 'StaticInterop' needs to be a non-JS interop type.
-}
-
-// Incompatible members can't have the same export name using renaming.
-@JSExport()
-class RenameCollision {
-//    ^
-// [web] The following class members collide with the same export 'exportName': RenameCollision.exportName, RenameCollision.finalField, RenameCollision.getSet, RenameCollision.getSet, RenameCollision.method.
-  int exportName = throw '';
-  @JSExport('exportName')
-  final int finalField = throw '';
-  @JSExport('exportName')
-  int get getSet => throw '';
-  @JSExport('exportName')
-  set getSet(int val) => throw '';
-  @JSExport('exportName')
-  void method() => throw '';
-}
-
-// Allowed collisions are only between getters and setters.
-@JSExport()
-class GetSetNoCollision {
-  int get getSet => throw '';
-  set getSet(int val) => throw '';
-
-  @JSExport('renamedGetSet')
-  int get renamedGetter => throw '';
-  @JSExport('renamedGetSet')
-  set renamedSetter(int val) => throw '';
-}
-
-void testCollisions() {
-  createDartExport(RenameCollision());
-  createDartExport(GetSetNoCollision());
-}
-
-// Class annotation values are warnings, not values, so they don't show up in
-// static error tests.
-@JSExport('Invalid')
-class ClassWithValue {
-  int get getSet => throw '';
-}
-
-@JSExport('Invalid')
-mixin MixinWithValue {
-  int get getSet => throw '';
-}
-
-void testClassExportWithValue() {
-  createDartExport(ClassWithValue());
-}
-
-// `JSExport` classes can't export methods that define type parameters as those
-// type parameters will never be instantiated through interop. Class type
-// parameters are okay, however.
-@JSExport()
-class GenericAll {
-//    ^
-// [web] Class 'GenericAll' has no exportable members in the class or the inheritance chain.
-  void defineTypeParam<T extends int>() {}
-  T useTypeParam<T extends Object>(T t) => t;
-}
-
-class GenericSome<U> {
-  @JSExport()
-  void defineTypeParam<T extends int>() {}
-  //   ^
-  // [web] Member 'defineTypeParam' is not a concrete instance member or declares type parameters, and therefore can't be exported.
-  T useTypeParam<T extends Object>(T t) => t;
-  @JSExport()
-  U useClassParam(U u) => u;
-}
-
-void testClassWithGenerics() {
-  createDartExport(GenericAll());
-  createDartExport(GenericSome());
-  createDartExport(GenericSome<int>());
-}
-
-void main() {
-  testNumberOfExports();
-  testUseDartInterface();
-  testCollisions();
-  testClassExportWithValue();
-  testClassWithGenerics();
-}
diff --git a/tests/lib_2/js/extends_test/extends_subtyping_live_test.dart b/tests/lib_2/js/extends_test/extends_subtyping_live_test.dart
deleted file mode 100644
index 1d895bf28fa..00000000000
--- a/tests/lib_2/js/extends_test/extends_subtyping_live_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart=2.9
-
-// Tests inheritance subtyping relationships after making package:js types live.
-
-@JS()
-library extends_subtyping_live_test;
-
-import 'package:js/js.dart';
-import 'extends_test_util.dart';
-
-@JS()
-external dynamic get externalGetter;
-
-void main() {
-  // Call to foreign function should trigger dart2js to assume types are live.
-  externalGetter;
-  testSubtyping();
-}
diff --git a/tests/lib_2/js/extends_test/extends_subtyping_not_live_test.dart b/tests/lib_2/js/extends_test/extends_subtyping_not_live_test.dart
deleted file mode 100644
index 77e323a828c..00000000000
--- a/tests/lib_2/js/extends_test/extends_subtyping_not_live_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart=2.9
-
-// Tests inheritance subtyping relationships without making package:js types
-// live.
-
-import 'extends_test_util.dart';
-
-void main() {
-  testSubtyping();
-}
diff --git a/tests/lib_2/js/extends_test/extends_test.dart b/tests/lib_2/js/extends_test/extends_test.dart
deleted file mode 100644
index 7e0bf9c100b..00000000000
--- a/tests/lib_2/js/extends_test/extends_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart=2.9
-
-import 'extends_test_util.dart';
-
-void main() {
-  setUpWithoutES6Syntax();
-  testInheritance();
-}
diff --git a/tests/lib_2/js/extends_test/extends_test_util.dart b/tests/lib_2/js/extends_test/extends_test_util.dart
deleted file mode 100644
index 445be18a75d..00000000000
--- a/tests/lib_2/js/extends_test/extends_test_util.dart
+++ /dev/null
@@ -1,280 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart=2.9
-
-// Tests inheritance relationships between `JS` and `anonymous` classes/objects.
-
-@JS()
-library extends_test;
-
-import 'package:expect/minitest.dart';
-import 'package:js/js.dart';
-
-@JS()
-external void eval(String code);
-
-@JS()
-class JSClass {
-  external JSClass();
-  external int get a;
-  external int getA();
-  external int getAOrB();
-}
-
-@JS()
-@anonymous
-class AnonymousClass {
-  external int get a;
-  external int getA();
-}
-
-@JS()
-class JSExtendJSClass extends JSClass {
-  external JSExtendJSClass(int a, int b);
-  external int get b;
-  external int getB();
-  external int getAOrB();
-}
-
-@JS()
-class JSExtendAnonymousClass extends AnonymousClass {
-  external JSExtendAnonymousClass(int a, int b);
-  external int get b;
-  external int getB();
-}
-
-@JS()
-@anonymous
-class AnonymousExtendAnonymousClass extends AnonymousClass {
-  external int get b;
-  external int getB();
-}
-
-@JS()
-@anonymous
-class AnonymousExtendJSClass extends JSClass {
-  external int get b;
-  external int getB();
-  external int getAOrB();
-}
-
-external AnonymousClass get anon;
-external AnonymousExtendAnonymousClass get anonExtendAnon;
-external AnonymousExtendJSClass get anonExtendJS;
-
-void setUpWithoutES6Syntax() {
-  // Use the old way to define inheritance between JS objects.
-  eval(r"""
-    function inherits(child, parent) {
-      if (child.prototype.__proto__) {
-        child.prototype.__proto__ = parent.prototype;
-      } else {
-        function tmp() {};
-        tmp.prototype = parent.prototype;
-        child.prototype = new tmp();
-        child.prototype.constructor = child;
-      }
-    }
-    function JSClass(a) {
-      if (arguments.length == 0) a = 1;
-      this.a = a;
-      this.getA = function() {
-        return this.a;
-      }
-      this.getAOrB = function() {
-        return this.getA();
-      }
-    }
-    function JSExtendJSClass(a, b) {
-      JSClass.call(this, a);
-      this.b = b;
-      this.getB = function() {
-        return this.b;
-      }
-      this.getAOrB = function() {
-        return this.getB();
-      }
-    }
-    inherits(JSExtendJSClass, JSClass);
-    function JSExtendAnonymousClass(a, b) {
-      this.a = a;
-      this.b = b;
-      this.getA = function() {
-        return this.a;
-      }
-      this.getB = function() {
-        return this.b;
-      }
-      this.getAOrB = function() {
-        return this.getB();
-      }
-    }
-    self.anon = new JSClass(1);
-    self.anonExtendAnon = new JSExtendAnonymousClass(1, 2);
-    self.anonExtendJS = new JSExtendJSClass(1, 2);
-  """);
-}
-
-void setUpWithES6Syntax() {
-  // Use the ES6 syntax for classes to make inheritance easier.
-  eval(r"""
-    class JSClass {
-      constructor(a) {
-        if (arguments.length == 0) a = 1;
-        this.a = a;
-      }
-      getA() {
-        return this.a;
-      }
-      getAOrB() {
-        return this.getA();
-      }
-    }
-    self.JSClass = JSClass;
-    class JSExtendJSClass extends JSClass {
-      constructor(a, b) {
-        super(a);
-        this.b = b;
-      }
-      getB() {
-        return this.b;
-      }
-      getAOrB() {
-        return this.getB();
-      }
-    }
-    self.JSExtendJSClass = JSExtendJSClass;
-    class JSExtendAnonymousClass {
-      constructor(a, b) {
-        this.a = a;
-        this.b = b;
-      }
-      getA() {
-        return this.a;
-      }
-      getB() {
-        return this.b;
-      }
-      getAOrB() {
-        return this.getB();
-      }
-    }
-    self.JSExtendAnonymousClass = JSExtendAnonymousClass;
-    self.anon = new JSClass(1);
-    self.anonExtendAnon = new JSExtendAnonymousClass(1, 2);
-    self.anonExtendJS = new JSExtendJSClass(1, 2);
-  """);
-}
-
-void testInheritance() {
-  var jsExtendJS = JSExtendJSClass(1, 2);
-  expect(jsExtendJS.a, 1);
-  expect(jsExtendJS.b, 2);
-  expect(jsExtendJS.getA(), 1);
-  expect(jsExtendJS.getB(), 2);
-  // Test method overrides.
-  expect(jsExtendJS.getAOrB(), 2);
-  expect((jsExtendJS as JSClass).getAOrB(), 2);
-
-  var jsExtendAnon = JSExtendAnonymousClass(1, 2);
-  expect(jsExtendAnon.a, 1);
-  expect(jsExtendAnon.b, 2);
-  expect(jsExtendAnon.getA(), 1);
-  expect(jsExtendAnon.getB(), 2);
-
-  expect(anonExtendAnon.a, 1);
-  expect(anonExtendAnon.b, 2);
-  expect(anonExtendAnon.getA(), 1);
-  expect(anonExtendAnon.getB(), 2);
-
-  expect(anonExtendJS.a, 1);
-  expect(anonExtendJS.b, 2);
-  expect(anonExtendJS.getA(), 1);
-  expect(anonExtendJS.getB(), 2);
-  expect(anonExtendJS.getAOrB(), 2);
-  expect((anonExtendJS as JSClass).getAOrB(), 2);
-
-  // Test type checking and casts succeeds regardless of type hierarchy.
-
-  // Test type checking at runtime by disabling inlining. We still, however, do
-  // `is` checks directly below to test those optimizations.
-  @pragma('dart2js:noInline')
-  void runtimeIsAndAs<T>(instance) {
-    expect(instance is T, true);
-    expect(() => instance as T, returnsNormally);
-  }
-
-  // Test that base JS type can be used as any subtype.
-  var js = JSClass();
-  expect(js is JSExtendJSClass, true);
-  runtimeIsAndAs<JSExtendJSClass>(js);
-  expect(js is AnonymousExtendJSClass, true);
-  runtimeIsAndAs<AnonymousExtendJSClass>(js);
-
-  // Test that base anonymous type can be use as any subtype.
-  // Conversion from external getter value to a variable is needed to coerce
-  // compile time optimization of type checks. This applies for below as well.
-  var anonVar = anon;
-  expect(anonVar is JSExtendAnonymousClass, true);
-  runtimeIsAndAs<JSExtendAnonymousClass>(anonVar);
-  expect(anonVar is AnonymousExtendAnonymousClass, true);
-  runtimeIsAndAs<AnonymousExtendAnonymousClass>(anonVar);
-
-  // Test that instance of subtypes can be used as their JS supertype.
-  expect(jsExtendJS is JSClass, true);
-  runtimeIsAndAs<JSClass>(jsExtendJS);
-  var anonExtendJSVar = anonExtendJS;
-  expect(anonExtendJSVar is JSClass, true);
-  runtimeIsAndAs<JSClass>(anonExtendJSVar);
-
-  // Test that instance of subtypes can be used as their anonymous supertype.
-  var anonExtendAnonVar = anonExtendAnon;
-  expect(anonExtendAnonVar is AnonymousClass, true);
-  runtimeIsAndAs<AnonymousClass>(anonExtendAnonVar);
-  expect(jsExtendAnon is AnonymousClass, true);
-  runtimeIsAndAs<AnonymousClass>(jsExtendAnon);
-}
-
-JSClass returnJS() => throw '';
-
-AnonymousClass returnAnon() => throw '';
-
-JSExtendJSClass returnJSExtendJS() => throw '';
-
-JSExtendAnonymousClass returnJSExtendAnon() => throw '';
-
-AnonymousExtendJSClass returnAnonExtendJS() => throw '';
-
-AnonymousExtendAnonymousClass returnAnonExtendAnon() => throw '';
-
-@pragma('dart2js:noInline')
-void isRuntimeSubtypeBothWays<T, U>() {
-  // Test T <: U and U <: T. With interop types, type checks should pass
-  // regardless of type hierarchy. Note that dart2js does these type checks at
-  // runtime. Below, we do compile-time checks using top-level functions.
-  T f1() => throw '';
-  U f2() => throw '';
-  expect(f1 is U Function(), true);
-  expect(f2 is T Function(), true);
-}
-
-void testSubtyping() {
-  // Test subtyping for inheritance between JS and anonymous classes.
-  expect(returnJS is JSExtendJSClass Function(), true);
-  expect(returnJSExtendJS is JSClass Function(), true);
-  isRuntimeSubtypeBothWays<JSClass, JSExtendJSClass>();
-
-  expect(returnJS is AnonymousExtendJSClass Function(), true);
-  expect(returnAnonExtendJS is JSClass Function(), true);
-  isRuntimeSubtypeBothWays<JSClass, AnonymousExtendJSClass>();
-
-  expect(returnAnon is JSExtendAnonymousClass Function(), true);
-  expect(returnJSExtendAnon is AnonymousClass Function(), true);
-  isRuntimeSubtypeBothWays<AnonymousClass, JSExtendAnonymousClass>();
-
-  expect(returnAnon is AnonymousExtendAnonymousClass Function(), true);
-  expect(returnAnonExtendAnon is AnonymousClass Function(), true);
-  isRuntimeSubtypeBothWays<AnonymousClass, AnonymousExtendAnonymousClass>();
-}
diff --git a/tests/lib_2/js/extends_test/extends_with_es6_test.dart b/tests/lib_2/js/extends_test/extends_with_es6_test.dart
deleted file mode 100644
index 0fb9898543c..00000000000
--- a/tests/lib_2/js/extends_test/extends_with_es6_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart=2.9
-
-import 'extends_test_util.dart';
-
-void main() {
-  setUpWithES6Syntax();
-  testInheritance();
-}
diff --git a/tests/lib_2/js/external_nonjs_static_test.dart b/tests/lib_2/js/external_nonjs_static_test.dart
deleted file mode 100644
index ac2aaf66a2a..00000000000
--- a/tests/lib_2/js/external_nonjs_static_test.dart
+++ /dev/null
@@ -1,131 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Checks for static errors using external without the @JS() annotation,
-// in a library without a @JS() annotation
-
-library external_nonjs_static_test;
-
-import 'dart:html';
-import 'package:js/js.dart';
-
-external get topLevelGetter;
-//           ^
-// [web] Only JS interop members may be 'external'.
-
-external set topLevelSetter(_);
-//           ^
-// [web] Only JS interop members may be 'external'.
-
-external topLevelFunction();
-//       ^
-// [web] Only JS interop members may be 'external'.
-
-class Constructors {
-  external Constructors();
-  //       ^
-  // [web] Only JS interop members may be 'external'.
-
-  external Constructors.namedConstructor();
-  //       ^
-  // [web] Only JS interop members may be 'external'.
-
-  external factory Constructors.namedFactory();
-  //               ^
-  // [web] Only JS interop members may be 'external'.
-}
-
-class Members {
-  external get instanceGetter;
-  //           ^
-  // [web] Only JS interop members may be 'external'.
-
-  external set instanceSetter(_);
-  //           ^
-  // [web] Only JS interop members may be 'external'.
-
-  external instanceMethod();
-  //       ^
-  // [web] Only JS interop members may be 'external'.
-}
-
-class StaticMembers {
-  external static get staticGetter;
-  //                  ^
-  // [web] Only JS interop members may be 'external'.
-
-  external static set staticSetter(_);
-  //                  ^
-  // [web] Only JS interop members may be 'external'.
-
-  external static staticMethod();
-  //              ^
-  // [web] Only JS interop members may be 'external'.
-}
-
-@anonymous
-class AnonymousClass {
-  external factory AnonymousClass();
-  //               ^
-  // [web] Only JS interop members may be 'external'.
-}
-
-extension ExtensionNonJS on NonJSClass {
-  external get getter;
-  //           ^
-  // [web] JS interop or Native class required for 'external' extension members.
-  external set setter(_);
-  //           ^
-  // [web] JS interop or Native class required for 'external' extension members.
-
-  external static get staticGetter;
-  //                  ^
-  // [web] JS interop or Native class required for 'external' extension members.
-  external static set staticSetter(_);
-  //                  ^
-  // [web] JS interop or Native class required for 'external' extension members.
-
-  external method();
-  //       ^
-  // [web] JS interop or Native class required for 'external' extension members.
-  external static staticMethod();
-  //              ^
-  // [web] JS interop or Native class required for 'external' extension members.
-  external optionalParameterMethod([int a, int b = 0]);
-  //       ^
-  // [web] JS interop or Native class required for 'external' extension members.
-  external overriddenMethod();
-  //       ^
-  // [web] JS interop or Native class required for 'external' extension members.
-
-  nonExternalMethod() => 1;
-  static nonExternalStaticMethod() => 2;
-}
-
-class NonJSClass {
-  void overriddenMethod() => 5;
-}
-
-extension ExtensionGenericNonJS<T> on GenericNonJSClass<T> {
-  external T method();
-  //         ^
-  // [web] JS interop or Native class required for 'external' extension members.
-}
-
-class GenericNonJSClass<T> {}
-
-extension ExtensionNative on HtmlElement {
-  external get getter;
-  external set setter(_);
-
-  external method();
-  external optionalParameterMethod([int a, int b = 0]);
-
-  nonExternalMethod() => 1;
-  static nonExternalStaticMethod() => 2;
-}
-
-main() {}
diff --git a/tests/lib_2/js/external_static_test.dart b/tests/lib_2/js/external_static_test.dart
deleted file mode 100644
index cdf812b48d0..00000000000
--- a/tests/lib_2/js/external_static_test.dart
+++ /dev/null
@@ -1,191 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Checks for static errors using external without the @JS() annotation,
-// in a library with a @JS() annotation
-
-@JS()
-library external_static_test;
-
-import 'dart:html';
-import 'package:js/js.dart';
-
-// external top level members ok in @JS() library.
-external get topLevelGetter;
-external set topLevelSetter(_);
-external topLevelFunction();
-
-class Constructors {
-  external Constructors();
-  //       ^
-  // [web] Only JS interop members may be 'external'.
-
-  external Constructors.namedConstructor();
-  //       ^
-  // [web] Only JS interop members may be 'external'.
-
-  external factory Constructors.namedFactory();
-  //               ^
-  // [web] Only JS interop members may be 'external'.
-}
-
-class Members {
-  external get instanceGetter;
-  //           ^
-  // [web] Only JS interop members may be 'external'.
-
-  external set instanceSetter(_);
-  //           ^
-  // [web] Only JS interop members may be 'external'.
-
-  external instanceMethod();
-  //       ^
-  // [web] Only JS interop members may be 'external'.
-}
-
-class StaticMembers {
-  external static get staticGetter;
-  //                  ^
-  // [web] Only JS interop members may be 'external'.
-
-  external static set staticSetter(_);
-  //                  ^
-  // [web] Only JS interop members may be 'external'.
-
-  external static staticMethod();
-  //              ^
-  // [web] Only JS interop members may be 'external'.
-}
-
-@anonymous
-class AnonymousClass {
-  external factory AnonymousClass();
-  //               ^
-  // [web] Only JS interop members may be 'external'.
-}
-
-extension ExtensionNonJS on NonJSClass {
-  external get getter;
-  //           ^
-  // [web] JS interop or Native class required for 'external' extension members.
-  external set setter(_);
-  //           ^
-  // [web] JS interop or Native class required for 'external' extension members.
-
-  external static get staticGetter;
-  //                  ^
-  // [web] JS interop or Native class required for 'external' extension members.
-  external static set staticSetter(_);
-  //                  ^
-  // [web] JS interop or Native class required for 'external' extension members.
-
-  external method();
-  //       ^
-  // [web] JS interop or Native class required for 'external' extension members.
-  external static staticMethod();
-  //              ^
-  // [web] JS interop or Native class required for 'external' extension members.
-  external optionalParameterMethod([int a, int b = 0]);
-  //       ^
-  // [web] JS interop or Native class required for 'external' extension members.
-  external overriddenMethod();
-  //       ^
-  // [web] JS interop or Native class required for 'external' extension members.
-
-  @JS('memberAnnotation')
-  external annotatedMethod();
-  //       ^
-  // [web] JS interop or Native class required for 'external' extension members.
-
-  nonExternalMethod() => 1;
-  static nonExternalStaticMethod() => 2;
-}
-
-class NonJSClass {
-  void overriddenMethod() => 5;
-}
-
-extension ExtensionGenericNonJS<T> on GenericNonJSClass<T> {
-  external T method();
-  //         ^
-  // [web] JS interop or Native class required for 'external' extension members.
-}
-
-class GenericNonJSClass<T> {}
-
-extension ExtensionJS on JSClass {
-  external get getter;
-  external set setter(_);
-
-  external method();
-  external optionalParameterMethod([int a, int b = 0]);
-
-  @JS('memberAnnotation')
-  external annotatedMethod();
-
-  nonExternalMethod() => 1;
-  static nonExternalStaticMethod() => 2;
-}
-
-@JS()
-class JSClass {}
-
-extension ExtensionGenericJS<T> on GenericJSClass<T> {
-  external T method();
-}
-
-@JS()
-class GenericJSClass<T> {}
-
-extension ExtensionAnonymousJS on AnonymousJSClass {
-  external get getter;
-  external set setter(_);
-  external method();
-}
-
-@JS()
-@anonymous
-class AnonymousJSClass {}
-
-extension ExtensionAbstractJS on AbstractJSClass {
-  external get getter;
-  external set setter(_);
-  external method();
-}
-
-@JS()
-abstract class AbstractJSClass {}
-
-extension ExtensionAnnotatedJS on AnnotatedJSClass {
-  external get getter;
-  external set setter(_);
-  external method();
-}
-
-@JS('Annotation')
-class AnnotatedJSClass {}
-
-extension ExtensionPrivateJS on _privateJSClass {
-  external get getter;
-  external set setter(_);
-  external method();
-}
-
-@JS()
-class _privateJSClass {}
-
-extension ExtensionNative on HtmlElement {
-  external get getter;
-  external set setter(_);
-
-  external method();
-  external optionalParameterMethod([int a, int b = 0]);
-
-  nonExternalMethod() => 1;
-  static nonExternalStaticMethod() => 2;
-}
-
-main() {}
diff --git a/tests/lib_2/js/instanceof_test.dart b/tests/lib_2/js/instanceof_test.dart
deleted file mode 100644
index a4c3c0de848..00000000000
--- a/tests/lib_2/js/instanceof_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS()
-library instanceof_test;
-
-import 'package:js/js.dart';
-import 'package:expect/expect.dart';
-import 'dart:js_util';
-
-@JS()
-external void eval(String code);
-
-@JS('Class')
-class Class {
-  external Class();
-  external Constructor get constructor;
-}
-
-@JS()
-class Constructor {}
-
-void main() {
-  eval("self.Class = function Class() {}");
-  var o = new Class();
-  var constructor = o.constructor;
-  Expect.isTrue(instanceof(o, constructor));
-}
diff --git a/tests/lib_2/js/is_check_and_as_cast_test.dart b/tests/lib_2/js/is_check_and_as_cast_test.dart
deleted file mode 100644
index 7ebe2ce8e95..00000000000
--- a/tests/lib_2/js/is_check_and_as_cast_test.dart
+++ /dev/null
@@ -1,135 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart=2.9
-
-// Tests `is` checks and `as` casts between various JS objects. Currently, all
-// checks and casts should be allowed between JS objects.
-
-@JS()
-library is_check_and_as_cast_test;
-
-import 'package:js/js.dart';
-import 'package:expect/minitest.dart';
-
-@JS()
-external void eval(String code);
-
-@JS()
-class Foo {
-  external Foo(int a);
-  external int get a;
-}
-
-// Class with same structure as Foo but separate JS class.
-@JS()
-class Bar {
-  external Bar(int a);
-  external int get a;
-}
-
-@JS('Bar')
-class BarCopy {
-  external BarCopy(int a);
-  external int get a;
-}
-
-// JS object literals
-@JS()
-@anonymous
-class LiteralA {
-  external int get x;
-}
-
-@JS()
-@anonymous
-class LiteralB {
-  external int get y;
-}
-
-// Library is annotated with JS so we don't need the annotation here.
-external LiteralA get a;
-external LiteralB get b;
-
-class DartClass {}
-
-// Avoid static type optimization by running all tests using this.
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-void main() {
-  eval(r"""
-    function Foo(a) {
-      this.a = a;
-    }
-    function Bar(a) {
-      this.a = a;
-    }
-    var a = {
-      x: 1,
-    };
-    var b = {
-      y: 2,
-    };
-      """);
-
-  // JS class object can be checked and casted with itself.
-  var foo = Foo(42);
-  expect(foo is Foo, isTrue);
-  expect(confuse(foo) is Foo, isTrue);
-  expect(() => (foo as Foo), returnsNormally);
-
-  // Try it with dynamic.
-  dynamic d = Foo(42);
-  expect(d is Foo, isTrue);
-  expect(() => (d as Foo), returnsNormally);
-
-  // Casts are allowed between any JS class objects.
-  expect(foo is Bar, isTrue);
-  expect(confuse(foo) is Bar, isTrue);
-  expect(d is Bar, isTrue);
-  expect(() => (foo as Bar), returnsNormally);
-  expect(() => (d as Bar), returnsNormally);
-
-  // BarCopy is the same JS class as Bar.
-  var barCopy = BarCopy(42);
-  expect(barCopy is Bar, isTrue);
-  expect(confuse(barCopy) is Bar, isTrue);
-  expect(() => (barCopy as Bar), returnsNormally);
-
-  // JS object literal can be checked and casted with itself.
-  expect(a is LiteralA, isTrue);
-  expect(confuse(a) is LiteralA, isTrue);
-  expect(() => (a as LiteralA), returnsNormally);
-
-  // Like class objects, casts are allowed between any object literals.
-  expect(a is LiteralB, isTrue);
-  expect(confuse(a) is LiteralB, isTrue);
-  expect(() => (a as LiteralB), returnsNormally);
-
-  // Similarly, casts are allowed between any class objects and object literals.
-  expect(foo is LiteralB, isTrue);
-  expect(confuse(foo) is LiteralB, isTrue);
-  expect(() => (foo as LiteralB), returnsNormally);
-  expect(a is Foo, isTrue);
-  expect(confuse(a) is Foo, isTrue);
-  expect(() => (a as Foo), returnsNormally);
-
-  // You cannot cast between JS interop objects and Dart objects, however.
-  var dartClass = DartClass();
-  expect(dartClass is Foo, isFalse);
-  expect(confuse(dartClass) is Foo, isFalse);
-  expect(() => (dartClass as Foo), throws);
-  expect(dartClass is LiteralA, isFalse);
-  expect(confuse(dartClass) is LiteralA, isFalse);
-  expect(() => (dartClass as LiteralA), throws);
-
-  expect(foo is DartClass, isFalse);
-  expect(confuse(foo) is DartClass, isFalse);
-  expect(() => (foo as DartClass), throws);
-  expect(a is DartClass, isFalse);
-  expect(confuse(a) is DartClass, isFalse);
-  expect(() => (a as DartClass), throws);
-}
diff --git a/tests/lib_2/js/js_util/async_test.dart b/tests/lib_2/js/js_util/async_test.dart
deleted file mode 100644
index a9131575c55..00000000000
--- a/tests/lib_2/js/js_util/async_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS()
-library js_util_async_test;
-
-import 'dart:async';
-
-import 'package:js/js.dart';
-import 'package:js/js_util.dart' as js_util;
-import 'package:expect/minitest.dart';
-import 'package:async_helper/async_helper.dart';
-
-@JS()
-external void eval(String code);
-
-@JS()
-abstract class Promise<T> {}
-
-@JS()
-external Promise get resolvedPromise;
-
-@JS()
-external Promise get rejectedPromise;
-
-@JS()
-external Promise getResolvedPromise();
-
-main() {
-  eval(r"""
-    var rejectedPromise = new Promise((resolve, reject) => reject('rejected'));
-    var resolvedPromise = new Promise(resolve => resolve('resolved'));
-    function getResolvedPromise() {
-      return resolvedPromise;
-    }
-    """);
-
-  Future<void> testResolvedPromise() async {
-    final String result = await js_util.promiseToFuture(resolvedPromise);
-    expect(result, equals('resolved'));
-  }
-
-  Future<void> testRejectedPromise() async {
-    final String error = await asyncExpectThrows<String>(
-        js_util.promiseToFuture(rejectedPromise));
-    expect(error, equals('rejected'));
-  }
-
-  Future<void> testReturnResolvedPromise() async {
-    final String result = await js_util.promiseToFuture(getResolvedPromise());
-    expect(result, equals('resolved'));
-  }
-
-  asyncTest(() async {
-    await testResolvedPromise();
-    await testRejectedPromise();
-    await testReturnResolvedPromise();
-  });
-}
diff --git a/tests/lib_2/js/js_util/bigint_test.dart b/tests/lib_2/js/js_util/bigint_test.dart
deleted file mode 100644
index 47462e57da6..00000000000
--- a/tests/lib_2/js/js_util/bigint_test.dart
+++ /dev/null
@@ -1,110 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Tests invoking JS BigInt functionality through js_util. This interop
-// requires usage of the operator functions exposed through js_util.
-
-@JS()
-library js_util_bigint_test;
-
-import 'package:js/js.dart';
-import 'package:js/js_util.dart' as js_util;
-import 'package:expect/minitest.dart';
-
-@JS('BigInt')
-external Object BigInt(Object value);
-
-main() {
-  group('bigint', () {
-    test('addition', () {
-      final one = BigInt('1');
-      final two = BigInt('2');
-      final three = BigInt('3');
-      expect(js_util.strictEqual(js_util.add(one, two), three), isTrue);
-      expect(js_util.strictEqual(js_util.add(one, one), three), isFalse);
-    });
-
-    test('subtraction', () {
-      final one = BigInt('1');
-      final two = BigInt('2');
-      final three = BigInt('3');
-      expect(js_util.strictEqual(js_util.subtract(three, one), two), isTrue);
-      expect(js_util.strictEqual(js_util.subtract(three, two), two), isFalse);
-    });
-
-    test('multiplication', () {
-      final two = BigInt('2');
-      final four = BigInt('4');
-      expect(js_util.strictEqual(js_util.multiply(two, two), four), isTrue);
-      expect(js_util.strictEqual(js_util.multiply(two, four), four), isFalse);
-    });
-
-    test('division', () {
-      final two = BigInt('2');
-      final four = BigInt('4');
-      expect(js_util.strictEqual(js_util.divide(four, two), two), isTrue);
-      expect(js_util.strictEqual(js_util.divide(four, four), two), isFalse);
-    });
-
-    test('exponentiation', () {
-      final two = BigInt('2');
-      final three = BigInt('3');
-      final nine = BigInt('9');
-      expect(
-          js_util.strictEqual(js_util.exponentiate(three, two), nine), isTrue);
-      expect(js_util.strictEqual(js_util.exponentiate(three, three), nine),
-          isFalse);
-    });
-
-    test('exponentiation2', () {
-      final two = BigInt('2');
-      final three = BigInt('3');
-      final five = BigInt('5');
-      expect(
-          js_util.add(
-              '', js_util.exponentiate(js_util.exponentiate(five, three), two)),
-          '15625');
-      expect(
-          js_util.add(
-              '', js_util.exponentiate(five, js_util.exponentiate(three, two))),
-          '1953125');
-    });
-
-    test('modulo', () {
-      final zero = BigInt('0');
-      final three = BigInt('3');
-      final nine = BigInt('9');
-      expect(js_util.strictEqual(js_util.modulo(nine, three), zero), isTrue);
-      expect(js_util.strictEqual(js_util.modulo(nine, three), nine), isFalse);
-    });
-
-    test('equality', () {
-      final one = BigInt('1');
-      expect(js_util.equal(one, 1), isTrue);
-      expect(js_util.strictEqual(one, 1), isFalse);
-      expect(js_util.notEqual(one, 1), isFalse);
-      expect(js_util.strictNotEqual(one, 1), isTrue);
-    });
-
-    test('comparisons', () {
-      final zero = BigInt('0');
-      final one = BigInt('1');
-      final otherOne = BigInt('1');
-      expect(js_util.greaterThan(one, zero), isTrue);
-      expect(js_util.greaterThan(one, 0), isTrue);
-      expect(js_util.greaterThan(2, one), isTrue);
-      expect(js_util.greaterThanOrEqual(one, otherOne), isTrue);
-      expect(js_util.greaterThanOrEqual(one, 1), isTrue);
-      expect(js_util.greaterThanOrEqual(one, 2), isFalse);
-
-      expect(js_util.lessThan(one, zero), isFalse);
-      expect(js_util.lessThan(zero, one), isTrue);
-      expect(js_util.lessThan(one, 2), isTrue);
-      expect(js_util.lessThan(one, 0), isFalse);
-      expect(js_util.lessThanOrEqual(one, otherOne), isTrue);
-      expect(js_util.lessThanOrEqual(one, 1), isTrue);
-      expect(js_util.lessThanOrEqual(2, one), isFalse);
-    });
-  });
-}
diff --git a/tests/lib_2/js/js_util/dartify_test.dart b/tests/lib_2/js/js_util/dartify_test.dart
deleted file mode 100644
index f14e2ff35ca..00000000000
--- a/tests/lib_2/js/js_util/dartify_test.dart
+++ /dev/null
@@ -1,113 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests the dartify functionality of the js_util library.
-
-@JS()
-library js_util_jsify_test;
-
-import 'package:js/js.dart';
-import 'package:js/js_util.dart' as js_util;
-import 'package:expect/expect.dart';
-import 'package:expect/minitest.dart';
-
-@JS()
-external void eval(String code);
-
-main() {
-  eval(r"""
-    globalThis.arrayData = [1, 2, false, 4, 'hello', 6, [1, 2], {'foo': 'bar'}, null];
-    globalThis.recArrayData = [];
-    globalThis.recArrayData = [globalThis.recArrayData];
-    globalThis.objectData = {
-      'a': 1,
-      'b': [1, 2, 3],
-      'c': {
-        'a': true,
-        'b': 'foo',
-        'c': null,
-      },
-    };
-    globalThis.recObjectData = {};
-    globalThis.recObjectData = {'foo': globalThis.recObjectData}
-    globalThis.throwData = new RegExp();
-    globalThis.complexData = {
-      'a': new Date(0),
-      'b': new Promise((resolve, reject) => {}),
-    };
-    globalThis.complexList = [
-      new Date(0),
-      new Promise((resolve, reject) => {}),
-    ];
-    """);
-
-  test('convert an array', () {
-    Object jsArray = js_util.getProperty(js_util.globalThis, 'arrayData');
-    Object dartArray = js_util.dartify(jsArray);
-    List<Object> expectedValues = [
-      1,
-      2,
-      false,
-      4,
-      'hello',
-      6,
-      [1, 2],
-      {'foo': 'bar'},
-      null
-    ];
-    Expect.deepEquals(expectedValues, dartArray);
-  });
-
-  test('convert a recursive array', () {
-    Object jsArray = js_util.getProperty(js_util.globalThis, 'recArrayData');
-    Object dartArray = js_util.dartify(jsArray);
-    List<Object> expectedValues = [[]];
-    Expect.deepEquals(expectedValues, dartArray);
-  });
-
-  test('convert an object literal', () {
-    Object jsObject = js_util.getProperty(js_util.globalThis, 'objectData');
-    Object dartObject = js_util.dartify(jsObject);
-    Map<Object, Object> expectedValues = {
-      'a': 1,
-      'b': [1, 2, 3],
-      'c': {'a': true, 'b': 'foo', 'c': null},
-    };
-    Expect.deepEquals(expectedValues, dartObject);
-  });
-
-  test('convert a recursive object literal', () {
-    Object jsObject = js_util.getProperty(js_util.globalThis, 'recObjectData');
-    Object dartObject = js_util.dartify(jsObject);
-    Map<Object, Object> expectedValues = {
-      'foo': {},
-    };
-    Expect.deepEquals(expectedValues, dartObject);
-  });
-
-  test('complex types convert in an Object', () {
-    Object jsObject = js_util.getProperty(js_util.globalThis, 'complexData');
-    Map<Object, Object> dartObject =
-        js_util.dartify(jsObject) as Map<Object, Object>;
-    print(dartObject);
-    Expect.isTrue(dartObject['a'] is DateTime);
-    Expect.isTrue(dartObject['b'] is Future);
-  });
-
-  test('complex types convert in a List', () {
-    Object jsArray = js_util.getProperty(js_util.globalThis, 'complexList');
-    List<Object> dartList = js_util.dartify(jsArray) as List<Object>;
-    Expect.isTrue(dartList[0] is DateTime);
-    Expect.isTrue(dartList[1] is Future);
-  });
-
-  test('throws if object is a regexp', () {
-    expect(
-        () => js_util
-            .dartify(js_util.getProperty(js_util.globalThis, 'throwData')),
-        throwsArgumentError);
-  });
-}
diff --git a/tests/lib_2/js/js_util/implicit_downcast_test.dart b/tests/lib_2/js/js_util/implicit_downcast_test.dart
deleted file mode 100644
index b0d201b1bd3..00000000000
--- a/tests/lib_2/js/js_util/implicit_downcast_test.dart
+++ /dev/null
@@ -1,124 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Tests implicit downcasts in js_util.
-
-@JS()
-library js_util_implicit_downcast_test;
-
-import 'package:js/js.dart';
-import 'package:js/js_util.dart' as js_util;
-import 'package:expect/minitest.dart';
-
-@JS()
-external void eval(String code);
-
-@JS()
-class Foo {
-  external Foo(num a);
-
-  external num get a;
-  external void set a(_);
-  external num bar();
-}
-
-bool isComplianceMode() {
-  var stuff = [1, 'string'];
-  var a = stuff[0];
-  // Detect whether we are using --omit-implicit-checks.
-  try {
-    String s = a as dynamic;
-    return false;
-  } catch (e) {
-    // Ignore.
-  }
-  return true;
-}
-
-main() {
-  eval(r"""
-    function Foo(a) {
-      this.a = a;
-    }
-
-    Foo.prototype.bar = function() {
-      return this.a;
-    }
-    """);
-
-  if (isComplianceMode()) {
-    complianceModeTest();
-  } else {
-    omitImplicitChecksTest();
-  }
-}
-
-complianceModeTest() {
-  var f = Foo(42);
-  expect(js_util.getProperty<int>(f, 'a'), equals(42));
-  expect(() => js_util.getProperty<List>(f, 'a'), throws);
-
-  f.a = 5;
-  expect(js_util.callMethod<int>(f, 'bar', []), equals(5));
-  expect(() => js_util.callMethod<List>(f, 'bar', []), throws);
-
-  // Check optimized lowering of callMethod.
-  expect(() => js_util.callMethod<List>(f, 'bar', [1]), throws);
-  expect(() => js_util.callMethod<List>(f, 'bar', [1, 2]), throws);
-  expect(() => js_util.callMethod<List>(f, 'bar', [1, 2, 3]), throws);
-  expect(() => js_util.callMethod<List>(f, 'bar', [1, 2, 3, 4]), throws);
-  expect(() => js_util.callMethod<List>(f, 'bar', [1, 2, 3, 4, 5]), throws);
-
-  var f2 = Foo(7);
-  var fConstructor = js_util.getProperty(f, 'constructor');
-  expect(js_util.callConstructor<Foo>(fConstructor, [7]).a, equals(7));
-  expect(() => js_util.callConstructor<List>(fConstructor, [7]), throws);
-
-  // Check optimized lowering of callConstructor.
-  expect(() => js_util.callConstructor<List>(fConstructor, null), throws);
-  expect(() => js_util.callConstructor<List>(fConstructor, []), throws);
-  expect(() => js_util.callConstructor<List>(fConstructor, [1, 2]), throws);
-  expect(() => js_util.callConstructor<List>(fConstructor, [1, 2, 3]), throws);
-  expect(
-      () => js_util.callConstructor<List>(fConstructor, [1, 2, 3, 4]), throws);
-  expect(() => js_util.callConstructor<List>(fConstructor, [1, 2, 3, 4, 5]),
-      throws);
-}
-
-omitImplicitChecksTest() {
-  var f = Foo(42);
-  expect(js_util.getProperty<int>(f, 'a'), equals(42));
-  expect(js_util.getProperty<List>(f, 'a'), equals(42));
-
-  f.a = 5;
-  expect(js_util.callMethod<int>(f, 'bar', []), equals(5));
-  expect(js_util.callMethod<List>(f, 'bar', []), equals(5));
-
-  // Check optimized lowering of callMethod.
-  expect(js_util.callMethod<List>(f, 'bar', [1]), equals(5));
-  expect(js_util.callMethod<List>(f, 'bar', [1, 2]), equals(5));
-  expect(js_util.callMethod<List>(f, 'bar', [1, 2, 3]), equals(5));
-  expect(js_util.callMethod<List>(f, 'bar', [1, 2, 3, 4]), equals(5));
-  expect(js_util.callMethod<List>(f, 'bar', [1, 2, 3, 4, 5]), equals(5));
-
-  var fConstructor = js_util.getProperty(f, 'constructor');
-  expect(js_util.callConstructor<Foo>(fConstructor, [7]).a, equals(7));
-  expect(
-      (js_util.callConstructor<List>(fConstructor, [7]) as Foo).a, equals(7));
-
-  // Check optimized lowering of callConstructor.
-  expect((js_util.callConstructor<List>(fConstructor, null) as Foo).a,
-      equals(null));
-  expect(
-      (js_util.callConstructor<List>(fConstructor, []) as Foo).a, equals(null));
-  expect((js_util.callConstructor<List>(fConstructor, [1, 2]) as Foo).a,
-      equals(1));
-  expect((js_util.callConstructor<List>(fConstructor, [1, 2, 3]) as Foo).a,
-      equals(1));
-  expect((js_util.callConstructor<List>(fConstructor, [1, 2, 3, 4]) as Foo).a,
-      equals(1));
-  expect(
-      (js_util.callConstructor<List>(fConstructor, [1, 2, 3, 4, 5]) as Foo).a,
-      equals(1));
-}
diff --git a/tests/lib_2/js/js_util/js_prefix_test.dart b/tests/lib_2/js/js_util/js_prefix_test.dart
deleted file mode 100644
index f74daa58c29..00000000000
--- a/tests/lib_2/js/js_util/js_prefix_test.dart
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests the functionality of the JS$ prefix for escaping keywords in JS names.
-// Currently only implemented in dart2js, expected to fail in ddc.
-
-@JS()
-library js_prefix_test;
-
-import 'package:js/js.dart';
-import 'package:js/js_util.dart' as js_util;
-import 'package:expect/minitest.dart';
-
-@JS()
-@anonymous
-class ExampleTypedLiteral {
-  external factory ExampleTypedLiteral({JS$_c, JS$class});
-
-  external get JS$_c;
-  external set JS$_c(v);
-  // Identical to JS$_c but only accessible within the library.
-  external get _c;
-  external get JS$class;
-  external set JS$class(v);
-}
-
-main() {
-  test('hasProperty', () {
-    var literal = new ExampleTypedLiteral(JS$_c: null, JS$class: true);
-    expect(js_util.hasProperty(literal, '_c'), isTrue);
-    expect(literal.JS$_c, isNull);
-    expect(js_util.hasProperty(literal, 'class'), isTrue);
-    // JS$_c escapes to _c so the property JS$_c will not exist on the object.
-    expect(js_util.hasProperty(literal, r'JS$_c'), isFalse);
-    expect(js_util.hasProperty(literal, r'JS$class'), isFalse);
-    expect(literal.JS$class, isTrue);
-
-    literal = new ExampleTypedLiteral();
-    expect(js_util.hasProperty(literal, '_c'), isFalse);
-    expect(js_util.hasProperty(literal, 'class'), isFalse);
-
-    literal = new ExampleTypedLiteral(JS$_c: 74);
-    expect(js_util.hasProperty(literal, '_c'), isTrue);
-    expect(literal.JS$_c, equals(74));
-  });
-
-  test('getProperty', () {
-    var literal = new ExampleTypedLiteral(JS$_c: 7, JS$class: true);
-    expect(js_util.getProperty(literal, '_c'), equals(7));
-    expect(literal.JS$_c, equals(7));
-    expect(js_util.getProperty(literal, 'class'), isTrue);
-    expect(js_util.getProperty(literal, r'JS$_c'), isNull);
-    expect(js_util.getProperty(literal, r'JS$class'), isNull);
-  });
-
-  test('setProperty', () {
-    var literal = new ExampleTypedLiteral();
-    literal.JS$class = 42;
-    expect(literal.JS$class, equals(42));
-    js_util.setProperty(literal, 'class', 100);
-    expect(literal.JS$class, equals(100));
-  });
-}
diff --git a/tests/lib_2/js/js_util/jsify_test.dart b/tests/lib_2/js/js_util/jsify_test.dart
deleted file mode 100644
index 67a04af9bc8..00000000000
--- a/tests/lib_2/js/js_util/jsify_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests the jsify functionality of the js_util library.
-
-@JS()
-library js_util_jsify_test;
-
-import 'package:js/js.dart';
-import 'package:js/js_util.dart' as js_util;
-import 'package:expect/minitest.dart';
-
-@JS()
-external void eval(String code);
-
-@JS()
-external bool checkMap(m, String, value);
-
-@JS()
-class Foo {
-  external Foo(num a);
-
-  external num get a;
-  external num bar();
-}
-
-main() {
-  eval(r"""
-    function Foo(a) {
-      this.a = a;
-    }
-
-    Foo.prototype.bar = function() {
-      return this.a;
-    }
-
-    function checkMap(m, key, value) {
-      if (m.hasOwnProperty(key))
-        return m[key] == value;
-      else
-        return false;
-    }
-    """);
-
-  test('convert primitives', () {
-    final cases = [null, true, 0.5, 'foo'];
-    for (int i = 0; i < cases.length; i++) {
-      final test = cases[i];
-      final jsTest = js_util.jsify(test);
-      expect(identical(test, jsTest), isTrue);
-    }
-  });
-
-  test('convert a List', () {
-    final list = [1, 2, 3, 4, 5, 6, 7, 8];
-    var array = js_util.jsify(list);
-    expect(array is List, isTrue);
-    expect(identical(array, list), isFalse);
-    expect(array.length, equals(list.length));
-    for (var i = 0; i < list.length; i++) {
-      expect(array[i], equals(list[i]));
-    }
-  });
-
-  test('convert an Iterable', () {
-    final set = new Set.from([1, 2, 3, 4, 5, 6, 7, 8]);
-    var array = js_util.jsify(set);
-    expect(array is List, isTrue);
-    expect(array.length, equals(set.length));
-    for (var i = 0; i < array.length; i++) {
-      expect(set.contains(array[i]), isTrue);
-    }
-  });
-
-  test('convert a Map', () {
-    var map = {'a': 1, 'b': 2, 'c': 3};
-    var jsMap = js_util.jsify(map);
-    expect(jsMap is List, isFalse);
-    expect(jsMap is Map, isFalse);
-    for (var key in map.keys) {
-      expect(checkMap(jsMap, key, map[key]), isTrue);
-    }
-  });
-
-  test('deep convert a complex object', () {
-    dynamic object = {
-      'a': [
-        1,
-        [2, 3]
-      ],
-      'b': {'c': 3, 'd': new Foo(42)},
-      'e': null
-    };
-    var jsObject = js_util.jsify(object);
-    expect(js_util.getProperty(jsObject, 'a')[0], equals(object['a'][0]));
-    expect(js_util.getProperty(jsObject, 'a')[1][0], equals(object['a'][1][0]));
-    expect(js_util.getProperty(jsObject, 'a')[1][1], equals(object['a'][1][1]));
-
-    var b = js_util.getProperty(jsObject, 'b');
-    expect(js_util.getProperty(b, 'c'), equals(object['b']['c']));
-    var d = js_util.getProperty(b, 'd');
-    expect(d, equals(object['b']['d']));
-    expect(js_util.getProperty(d, 'a'), equals(42));
-    expect(js_util.callMethod(d, 'bar', []), equals(42));
-
-    expect(js_util.getProperty(jsObject, 'e'), isNull);
-  });
-}
diff --git a/tests/lib_2/js/js_util/operator_test.dart b/tests/lib_2/js/js_util/operator_test.dart
deleted file mode 100644
index 2d2bc8de1c1..00000000000
--- a/tests/lib_2/js/js_util/operator_test.dart
+++ /dev/null
@@ -1,155 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Tests invoking JS operators through js_util.
-
-@JS()
-library js_util_operator_test;
-
-import 'package:js/js.dart';
-import 'package:js/js_util.dart' as js_util;
-import 'package:expect/minitest.dart';
-
-@JS()
-external void eval(String code);
-
-@JS()
-external Object get undefinedObject;
-
-@JS()
-class Foo {
-  external Foo();
-}
-
-main() {
-  eval(r"""
-    function Foo() {}
-  """);
-
-  test('typeofEquals', () {
-    expect(js_util.typeofEquals(5, 'number'), isTrue);
-    expect(js_util.typeofEquals(5, 'string'), isFalse);
-
-    expect(js_util.typeofEquals('foo', 'string'), isTrue);
-    expect(js_util.typeofEquals('foo', 'number'), isFalse);
-
-    expect(js_util.typeofEquals(null, 'object'), isTrue);
-    expect(js_util.typeofEquals(null, 'boolean'), isFalse);
-
-    expect(js_util.typeofEquals(true, 'boolean'), isTrue);
-    expect(js_util.typeofEquals(true, 'number'), isFalse);
-
-    expect(js_util.typeofEquals(Foo(), 'object'), isTrue);
-    expect(js_util.typeofEquals(Foo(), 'function'), isFalse);
-
-    expect(js_util.typeofEquals(js_util.newObject(), 'object'), isTrue);
-    expect(js_util.typeofEquals(js_util.newObject(), 'function'), isFalse);
-
-    expect(js_util.typeofEquals([], 'object'), isTrue);
-    expect(js_util.typeofEquals([], 'function'), isFalse);
-
-    expect(js_util.typeofEquals(undefinedObject, 'undefined'), isTrue);
-    expect(js_util.typeofEquals(undefinedObject, 'object'), isFalse);
-
-    expect(
-        js_util.typeofEquals(
-            js_util.getProperty(js_util.globalThis, 'Foo'), 'function'),
-        isTrue);
-  });
-
-  test('not', () {
-    expect(js_util.not(true), isFalse);
-    expect(js_util.not(false), isTrue);
-
-    expect(js_util.not(null), isTrue);
-    expect(js_util.not(''), isTrue);
-    expect(js_util.not(0), isTrue);
-    expect(js_util.not(undefinedObject), isTrue);
-
-    expect(js_util.not([]), isFalse);
-    expect(js_util.not({}), isFalse);
-    expect(js_util.not(js_util.newObject()), isFalse);
-    expect(js_util.not(Foo()), isFalse);
-    expect(js_util.not('foo'), isFalse);
-    expect(js_util.not(5), isFalse);
-  });
-
-  test('isTruthy', () {
-    expect(js_util.isTruthy(true), isTrue);
-    expect(js_util.isTruthy(false), isFalse);
-
-    expect(js_util.isTruthy(null), isFalse);
-    expect(js_util.isTruthy(''), isFalse);
-    expect(js_util.isTruthy(0), isFalse);
-    expect(js_util.isTruthy(undefinedObject), isFalse);
-
-    expect(js_util.isTruthy([]), isTrue);
-    expect(js_util.isTruthy({}), isTrue);
-    expect(js_util.isTruthy(js_util.newObject()), isTrue);
-    expect(js_util.isTruthy(Foo()), isTrue);
-    expect(js_util.isTruthy('foo'), isTrue);
-    expect(js_util.isTruthy(5), isTrue);
-  });
-
-  test('or', () {
-    expect(js_util.or(true, false), isTrue);
-    expect(js_util.or(true, true), isTrue);
-    expect(js_util.or(false, true), isTrue);
-    expect(js_util.or(false, false), isFalse);
-
-    expect(js_util.or('foo', 'bar'), equals('foo'));
-    expect(js_util.or(null, 'foo'), equals('foo'));
-    expect(js_util.or(undefinedObject, 'foo'), equals('foo'));
-    expect(js_util.or(0, 'foo'), equals('foo'));
-    expect(js_util.or('', 'foo'), equals('foo'));
-    expect(js_util.or([], 'bar'), equals([]));
-    var o = js_util.newObject();
-    expect(js_util.or(o, 'foo'), equals(o));
-  });
-
-  test('and', () {
-    expect(js_util.and(true, false), isFalse);
-    expect(js_util.and(true, true), isTrue);
-    expect(js_util.and(false, true), isFalse);
-    expect(js_util.and(false, false), isFalse);
-
-    expect(js_util.and('foo', 'bar'), equals('bar'));
-    expect(js_util.and(null, 'foo'), equals(null));
-    // Should be undefined if we had JS types
-    expect(js_util.and(undefinedObject, 'foo'), equals(null));
-    expect(js_util.and(0, 'foo'), equals(0));
-    expect(js_util.and([], 'bar'), equals('bar'));
-    var o = js_util.newObject();
-    expect(js_util.and(o, 'foo'), equals('foo'));
-  });
-
-  test('delete', () {
-    var f = Foo();
-
-    expect(js_util.delete(f, 'unknownProperty'), isTrue);
-
-    expect(js_util.getProperty(f, 'a'), equals(null));
-    js_util.setProperty(f, 'a', 'foo');
-    expect(js_util.getProperty(f, 'a'), equals('foo'));
-    expect(js_util.delete(f, 'a'), isTrue);
-    expect(js_util.getProperty(f, 'a'), equals(null));
-  });
-
-  test('unsignedRightShift', () {
-    expect(js_util.unsignedRightShift(9, 2), equals(2));
-    expect(js_util.unsignedRightShift(-9, 2), equals(1073741821));
-
-    expect(js_util.unsignedRightShift(1, 'a'), equals(1));
-    expect(js_util.unsignedRightShift(1, null), equals(1));
-    expect(js_util.unsignedRightShift(1, undefinedObject), equals(1));
-    expect(js_util.unsignedRightShift(1, false), equals(1));
-    expect(js_util.unsignedRightShift(1, []), equals(1));
-
-    expect(js_util.unsignedRightShift('a', 1), equals(0));
-    expect(js_util.unsignedRightShift(null, 1), equals(0));
-    expect(js_util.unsignedRightShift(undefinedObject, 1), equals(0));
-    expect(js_util.unsignedRightShift(false, 1), equals(0));
-    expect(js_util.unsignedRightShift([], 1), equals(0));
-  });
-}
diff --git a/tests/lib_2/js/js_util/promise_reject_null_test.dart b/tests/lib_2/js/js_util/promise_reject_null_test.dart
deleted file mode 100644
index 86a0a90ec8c..00000000000
--- a/tests/lib_2/js/js_util/promise_reject_null_test.dart
+++ /dev/null
@@ -1,66 +0,0 @@
-
-// @dart = 2.9
-@JS()
-library promise_reject_null_test;
-
-import 'package:js/js.dart';
-import 'package:js/js_util.dart' show promiseToFuture, NullRejectionException;
-
-import 'package:expect/minitest.dart';
-
-@JS()
-external void eval(String s);
-
-@JS('Promise.reject')
-external dynamic getRejectedPromise(v);
-
-@JS()
-external void reject(v);
-@JS()
-external dynamic getNewPromise();
-
-void main() async {
-  eval('''
-    self.getNewPromise = function () {
-      return new Promise(function (_, reject) {
-        self.reject = reject;
-      });
-    };
-  ''');
-
-  // Rejected promise with a `null` value should trigger a
-  // `NullRejectionException`.
-  await promiseToFuture(getRejectedPromise(null)).then((_) {
-    fail("Expected promise to reject and not fulfill.");
-  }).catchError((e) {
-    expect(e is NullRejectionException, true);
-    expect(e.isUndefined, false);
-  });
-
-  // Similar to the above, except we reject using JS interop.
-  var future = promiseToFuture(getNewPromise()).then((_) {
-    fail("Expected promise to reject and not fulfill.");
-  }).catchError((e) {
-    expect(e is NullRejectionException, true);
-    expect(e.isUndefined, false);
-  });
-
-  reject(null);
-
-  await future;
-
-  // It's also possible to reject with `undefined`. Make sure that the exception
-  // correctly flags that case.
-  future = promiseToFuture(getNewPromise()).then((_) {
-    fail("Expected promise to reject and not fulfill.");
-  }).catchError((e) {
-    expect(e is NullRejectionException, true);
-    expect(e.isUndefined, true);
-  });
-
-  eval('''
-    self.reject(undefined);
-  ''');
-
-  await future;
-}
diff --git a/tests/lib_2/js/js_util/properties_implicit_checks_test.dart b/tests/lib_2/js/js_util/properties_implicit_checks_test.dart
deleted file mode 100644
index c3e141e073d..00000000000
--- a/tests/lib_2/js/js_util/properties_implicit_checks_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests the functionality of object properties with the js_util library that
-// involve implicit type checks.
-
-@JS()
-library js_util_properties_implicit_checks_test;
-
-import 'package:js/js.dart';
-import 'package:js/js_util.dart' as js_util;
-import 'package:expect/minitest.dart';
-
-@JS()
-external void eval(String code);
-
-@JS()
-class CallMethodTest {
-  external CallMethodTest();
-
-  external one(a);
-}
-
-main() {
-  eval(r"""
-    function CallMethodTest() {}
-
-    CallMethodTest.prototype.one = function(a) {
-      return 'one';
-    }
-    """);
-
-  var o = CallMethodTest();
-  expect(() => js_util.callMethod(o, 'one', <String>[5 as dynamic]), throws);
-  expect(() => js_util.callMethod(o, 'one', <int>['foo' as dynamic]), throws);
-}
diff --git a/tests/lib_2/js/js_util/properties_test.dart b/tests/lib_2/js/js_util/properties_test.dart
deleted file mode 100644
index 31458159c48..00000000000
--- a/tests/lib_2/js/js_util/properties_test.dart
+++ /dev/null
@@ -1,730 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests the functionality of object properties with the js_util library. For
-// js_util tests with HTML objects see tests/lib/html/js_util_test.dart.
-
-@JS()
-library js_util_properties_test;
-
-import 'package:js/js.dart';
-import 'package:js/js_util.dart' as js_util;
-import 'package:expect/minitest.dart';
-
-@JS('Object.setPrototypeOf')
-external Object objectSetPrototypeOf(Object obj, Object proto);
-
-@JS()
-external String jsFunction();
-
-@JS()
-external void eval(String code);
-
-@JS('JSON.stringify')
-external String stringify(o);
-
-@JS('ArrayBuffer')
-external get JSArrayBufferType;
-
-@JS()
-class Foo {
-  external Foo(num a);
-
-  external num get a;
-  external num bar();
-  external Object get objectProperty;
-  external List get list;
-}
-
-@JS('Foo')
-external get JSFooType;
-
-String dartFunction() {
-  return 'Dart Function';
-}
-
-@JS()
-@anonymous
-class ExampleTypedLiteral {
-  external factory ExampleTypedLiteral({a, b});
-
-  external get a;
-  external get b;
-}
-
-class DartClass {
-  int x = 3;
-  int getX() => x;
-
-  static staticFunction() => 'static';
-  static const staticConstList = [1];
-}
-
-class GenericDartClass<T> {
-  final T myT;
-  GenericDartClass(this.myT);
-
-  T getT() => myT;
-}
-
-T getTopLevelGenerics<T>(T t) => t;
-
-String _getBarWithSideEffect() {
-  var x = 5;
-  expect(x, equals(5));
-  return 'bar';
-}
-
-@JS()
-class CallMethodTest {
-  external CallMethodTest();
-
-  external zero();
-  external one(a);
-  external two(a, b);
-  external three(a, b, c);
-  external four(a, b, c, d);
-  external five(a, b, c, d, e);
-}
-
-@JS()
-external get Zero;
-@JS()
-external get One;
-@JS()
-external get Two;
-@JS()
-external get Three;
-@JS()
-external get Four;
-@JS()
-external get Five;
-
-main() {
-  eval(r"""
-    function Foo(a) {
-      this.a = a;
-    }
-
-    Foo.b = 38;
-
-    Foo.prototype.list = [2, 4, 6];
-
-    Foo.prototype.bar = function() {
-      return this.a;
-    }
-
-    Foo.prototype.toString = function() {
-      return "I'm a Foo a=" + this.a;
-    }
-
-    Foo.prototype.fnList = [Foo.prototype.bar, Foo.prototype.toString];
-
-    Foo.prototype.objectProperty = {
-      'c': 1,
-      'list': [10, 20, 30],
-      'functionProperty': function() { return 'Function Property'; }
-    }
-
-    function jsFunction() {
-      return "JS Function";
-    }
-
-    Foo.prototype.nestedFunction = function() {
-      return function() {
-        return 'Nested Function';
-      };
-    }
-
-    Foo.prototype.getFirstEl = function(list) {
-      return list[0];
-    }
-
-    Foo.prototype.sumFn = function(a, b) {
-      return a + b;
-    }
-
-    Foo.prototype.getA = function(obj) {
-      return obj.a;
-    }
-
-    Foo.prototype.callFn = function(fn) {
-      return fn();
-    }
-
-    function CallMethodTest() {}
-
-    CallMethodTest.prototype.zero = function() {
-      return 'zero';
-    }
-    CallMethodTest.prototype.one = function(a) {
-      return 'one';
-    }
-    CallMethodTest.prototype.two = function(a, b) {
-      return 'two';
-    }
-    CallMethodTest.prototype.three = function(a, b, c) {
-      return 'three';
-    }
-    CallMethodTest.prototype.four = function(a, b, c, d) {
-      return 'four';
-    }
-    CallMethodTest.prototype.five = function(a, b, c, d, e) {
-      return 'five';
-    }
-
-    function Zero() {
-      this.count = 0;
-    }
-    function One(a) {
-      this.count = 1;
-    }
-    function Two(a, b) {
-      this.count = 2;
-    }
-    function Three(a, b, c) {
-      this.count = 3;
-    }
-    function Four(a, b, c, d) {
-      this.count = 4;
-    }
-    function Five(a, b, c, d, e) {
-      this.count = 5;
-    }
-
-    globalThis.globalKey = 'foo';
-    """);
-
-  group('globalThis', () {
-    test('create', () {
-      expect(identical(js_util.globalThis, js_util.globalThis), isTrue);
-    });
-
-    test('isGlobalThis', () {
-      expect(js_util.hasProperty(js_util.globalThis, 'One'), isTrue);
-      expect(js_util.getProperty(js_util.globalThis, 'globalKey'), 'foo');
-    });
-  });
-
-  group('newObject', () {
-    test('create', () {
-      expect(identical(js_util.newObject(), js_util.newObject()), isFalse);
-    });
-
-    test('callMethod', () {
-      var o = js_util.newObject();
-      expect(js_util.callMethod(o, 'toString', []), equals('[object Object]'));
-      expect(stringify(o), equals('{}'));
-    });
-
-    test('properties', () {
-      var o = js_util.newObject();
-      expect(js_util.hasProperty(o, 'foo bar'), isFalse);
-      expect(js_util.hasProperty(o, 'toString'), isTrue);
-      expect(js_util.callMethod(o, 'hasOwnProperty', ['toString']), isFalse);
-      expect(js_util.callMethod(o, 'hasOwnProperty', ['foo bar']), isFalse);
-      js_util.setProperty(o, 'foo bar', 42);
-      expect(js_util.callMethod(o, 'hasOwnProperty', ['foo bar']), isTrue);
-      expect(js_util.getProperty(o, 'foo bar'), equals(42));
-      expect(js_util.hasProperty(o, 'foo bar'), isTrue);
-      expect(stringify(o), equals('{"foo bar":42}'));
-    });
-
-    test('nested properties calls', () {
-      var o = js_util.newObject();
-      var f = new Foo(42);
-      js_util.setProperty(o, 'foo', f);
-      var foo = js_util.getProperty(o, 'foo');
-      expect(foo, equals(f));
-      expect(js_util.hasProperty(foo, 'a'), isTrue);
-      expect(js_util.getProperty(foo, 'a'), equals(42));
-      js_util.setProperty(foo, 'a', 24);
-      expect(js_util.getProperty(foo, 'a'), equals(24));
-    });
-  });
-
-  group('hasProperty', () {
-    test('typed object', () {
-      var f = new Foo(42);
-      expect(js_util.hasProperty(f, 'a'), isTrue);
-      expect(js_util.hasProperty(f, 'bar'), isTrue);
-      expect(js_util.hasProperty(f, 'b'), isFalse);
-      expect(js_util.hasProperty(f, 'toString'), isTrue);
-      objectSetPrototypeOf(f, null);
-      expect(js_util.hasProperty(f, 'toString'), isFalse);
-    });
-
-    test('typed literal', () {
-      var literal = new ExampleTypedLiteral(a: 'x', b: 42);
-      expect(js_util.hasProperty(literal, 'a'), isTrue);
-      expect(js_util.hasProperty(literal, 'b'), isTrue);
-      expect(js_util.hasProperty(literal, 'anything'), isFalse);
-
-      literal = new ExampleTypedLiteral(a: null);
-      expect(js_util.hasProperty(literal, 'a'), isTrue);
-      expect(js_util.hasProperty(literal, 'b'), isFalse);
-      expect(js_util.hasProperty(literal, 'anything'), isFalse);
-    });
-
-    test('complex hasProperty calls', () {
-      var f = new Foo(42);
-      expect(js_util.hasProperty(f.objectProperty, 'c'), isTrue);
-      expect(js_util.hasProperty(f.objectProperty, 'nonexistent'), isFalse);
-
-      // Using a variable for the property name.
-      String propertyName = 'bar';
-      expect(js_util.hasProperty(f, propertyName), isTrue);
-    });
-  });
-
-  group('getProperty', () {
-    test('typed object', () {
-      var f = new Foo(42);
-      expect(js_util.getProperty(f, 'a'), equals(42));
-      expect(js_util.getProperty(f, 'b'), isNull);
-      expect(js_util.getProperty(f, 'bar') is Function, isTrue);
-      expect(js_util.getProperty(f, 'list') is List, isTrue);
-      expect(js_util.getProperty(f, 'objectProperty') is Object, isTrue);
-      expect(js_util.getProperty(f, 'toString') is Function, isTrue);
-      objectSetPrototypeOf(f, null);
-      expect(js_util.getProperty(f, 'toString'), isNull);
-    });
-
-    test('typed literal', () {
-      var literal = new ExampleTypedLiteral(a: 'x', b: 42);
-      expect(js_util.getProperty(literal, 'a'), equals('x'));
-      expect(js_util.getProperty(literal, 'b'), equals(42));
-      expect(js_util.getProperty(literal, 'anything'), isNull);
-    });
-
-    test('complex getProperty calls', () {
-      var f = new Foo(42);
-
-      // Accessing a method property.
-      expect(js_util.getProperty(f, 'bar') is Function, isTrue);
-      expect(js_util.callMethod(f, 'bar', []), equals(42));
-
-      // Accessing list properties.
-      expect(js_util.getProperty(f, 'list')[0], equals(2));
-      expect(js_util.getProperty(f, 'fnList')[0] is Function, isTrue);
-      expect(
-          js_util.callMethod(
-              js_util.getProperty(f, 'fnList')[0], 'apply', [f, []]),
-          equals(42));
-      expect(js_util.getProperty(f.list, "0"), equals(2));
-      var index = 0;
-      expect(js_util.getProperty(f.list, index++), equals(2));
-      expect(index, equals(1));
-      expect(js_util.getProperty(f.list, index), equals(4));
-
-      // Accessing nested object properties.
-      var objectProperty = js_util.getProperty(f, 'objectProperty');
-      expect(js_util.getProperty(objectProperty, 'c'), equals(1));
-      expect(js_util.getProperty(objectProperty, 'list') is List, isTrue);
-      expect(js_util.getProperty(objectProperty, 'list')[1], equals(20));
-      expect(
-          js_util.getProperty(objectProperty, 'functionProperty') is Function,
-          isTrue);
-      // Using nested getProperty calls.
-      expect(
-          js_util.getProperty(
-              js_util.getProperty(
-                  js_util.getProperty(f, 'objectProperty'), 'list'),
-              1),
-          equals(20));
-
-      // Using a variable for the property name.
-      String propertyName = 'a';
-      expect(js_util.getProperty(f, propertyName), equals(42));
-      String bar = _getBarWithSideEffect();
-      expect(js_util.getProperty(f, bar) is Function, isTrue);
-      expect(js_util.callMethod(f, bar, []), equals(42));
-    });
-  });
-
-  group('setProperty', () {
-    test('typed object', () {
-      var f = new Foo(42);
-      expect(js_util.getProperty(f, 'a'), equals(42));
-      js_util.setProperty(f, 'a', 100);
-      expect(f.a, equals(100));
-      expect(js_util.getProperty(f, 'a'), equals(100));
-      js_util.setProperty(f, 'a', null);
-      expect(f.a, equals(null));
-
-      expect(js_util.getProperty(f, 'list') is List, isTrue);
-      js_util.setProperty(f, 'list', [8]);
-      expect(js_util.getProperty(f, 'list') is List, isTrue);
-      expect(js_util.getProperty(f, 'list')[0], equals(8));
-
-      js_util.setProperty(f, 'newProperty', 'new');
-      expect(js_util.getProperty(f, 'newProperty'), equals('new'));
-
-      // Using a variable for the property value.
-      var num = 4;
-      js_util.setProperty(f, 'a', num);
-      expect(f.a, equals(num));
-      var str = 'bar';
-      js_util.setProperty(f, 'a', str);
-      expect(f.a, equals(str));
-      var b = false;
-      js_util.setProperty(f, 'a', b);
-      expect(f.a, equals(b));
-      var list = [2, 4, 6];
-      js_util.setProperty(f, 'a', list);
-      expect(f.a, equals(list));
-      var fn = allowInterop(dartFunction);
-      js_util.setProperty(f, 'a', fn);
-      expect(f.a, equals(fn));
-    });
-
-    test('typed literal', () {
-      var literal = new ExampleTypedLiteral();
-      js_util.setProperty(literal, 'a', 'foo');
-      expect(js_util.getProperty(literal, 'a'), equals('foo'));
-      expect(literal.a, equals('foo'));
-      js_util.setProperty(literal, 'a', literal);
-      expect(identical(literal.a, literal), isTrue);
-      var list = ['arr'];
-      js_util.setProperty(literal, 'a', list);
-      expect(identical(literal.a, list), isTrue);
-    });
-
-    test('complex setProperty calls', () {
-      var f = new Foo(42);
-
-      // Set function property to a num.
-      expect(js_util.getProperty(f, 'bar') is Function, isTrue);
-      js_util.setProperty(f, 'bar', 5);
-      expect(js_util.getProperty(f, 'bar') is Function, isFalse);
-      expect(js_util.getProperty(f, 'bar'), equals(5));
-
-      // Set property to a Dart function.
-      js_util.setProperty(f, 'bar', allowInterop(dartFunction));
-      expect(js_util.getProperty(f, 'bar') is Function, isTrue);
-      expect(js_util.callMethod(f, 'bar', []), equals('Dart Function'));
-      js_util.setProperty(f, 'bar', allowInterop(() {
-        return 'Inline';
-      }));
-      expect(js_util.callMethod(f, 'bar', []), equals('Inline'));
-      js_util.setProperty(f, 'bar', allowInterop(DartClass.staticFunction));
-      expect(js_util.callMethod(f, 'bar', []), equals('static'));
-
-      // Set property to a JS function.
-      js_util.setProperty(f, 'bar', allowInterop(jsFunction));
-      expect(js_util.getProperty(f, 'bar') is Function, isTrue);
-      expect(js_util.callMethod(f, 'bar', []), equals('JS Function'));
-
-      // Set property with nested object properties.
-      js_util.setProperty(f.objectProperty, 'c', 'new val');
-      expect(js_util.getProperty(f.objectProperty, 'c'), equals('new val'));
-      js_util.setProperty(f.objectProperty, 'list', [1, 2, 3]);
-      expect(js_util.getProperty(f.objectProperty, 'list')[1], equals(2));
-      // Using a nested getProperty call.
-      js_util.setProperty(
-          js_util.getProperty(f, 'objectProperty'), 'c', 'nested val');
-      expect(js_util.getProperty(f.objectProperty, 'c'), equals('nested val'));
-
-      // Using a variable for the property name.
-      String propertyName = 'bar';
-      js_util.setProperty(f, propertyName, 'foo');
-      expect(js_util.getProperty(f, 'bar'), equals('foo'));
-      String bar = _getBarWithSideEffect();
-      js_util.setProperty(f, bar, 'baz');
-      expect(js_util.getProperty(f, bar), equals('baz'));
-      js_util.setProperty(f, _getBarWithSideEffect(), 'mumble');
-      expect(js_util.getProperty(f, bar), equals('mumble'));
-
-      // Set property to a function call.
-      js_util.setProperty(f, 'a', dartFunction());
-      String expected = dartFunction();
-      expect(f.a, equals(expected));
-
-      // Using a tearoff as the property value.
-      js_util.setProperty(f, 'tearoff', allowInterop(DartClass().getX));
-      expect(js_util.callMethod(f, 'tearoff', []), equals(3));
-
-      // Set property to instance method calls.
-      js_util.setProperty(f, 'a', DartClass().getX());
-      expect(f.a, equals(3));
-      js_util.setProperty(f, 'a', GenericDartClass<int>(5).getT());
-      expect(f.a, equals(5));
-
-      // Set property using a generics wrapper on value.
-      js_util.setProperty(f, 'a', getTopLevelGenerics<int>(10));
-      expect(f.a, equals(10));
-    });
-  });
-
-  group('callMethod', () {
-    test('typed object', () {
-      var f = new Foo(42);
-      expect(js_util.callMethod(f, 'bar', []), equals(42));
-    });
-
-    test('complex callMethod calls', () {
-      var f = new Foo(42);
-
-      // Call a method that returns an unbound function.
-      expect(js_util.callMethod(f, 'nestedFunction', []) is Function, isTrue);
-      expect(js_util.callMethod(f, 'nestedFunction', [])(),
-          equals('Nested Function'));
-
-      // Call method on a nested function property.
-      expect(js_util.callMethod(f.objectProperty, 'functionProperty', []),
-          equals('Function Property'));
-      // Using a nested getProperty call.
-      expect(
-          js_util.callMethod(
-              js_util.getProperty(f, 'objectProperty'), 'functionProperty', []),
-          equals('Function Property'));
-
-      // Call method with different args.
-      expect(
-          js_util.callMethod(f, 'getFirstEl', [
-            [25, 50]
-          ]),
-          equals(25));
-      expect(js_util.callMethod(f, 'sumFn', [2, 3]), equals(5));
-      expect(js_util.callMethod(f, 'getA', [f]), equals(42));
-      expect(js_util.callMethod(f, 'callFn', [allowInterop(jsFunction)]),
-          equals('JS Function'));
-      expect(js_util.callMethod(f, 'callFn', [allowInterop(dartFunction)]),
-          equals('Dart Function'));
-      expect(
-          js_util.callMethod(f, 'callFn', [
-            allowInterop(() {
-              return 'inline';
-            })
-          ]),
-          equals('inline'));
-      expect(
-          js_util.callMethod(
-              f, 'callFn', [allowInterop(DartClass.staticFunction)]),
-          equals('static'));
-
-      // Using a variable for the method name.
-      String methodName = 'bar';
-      expect(js_util.callMethod(f, methodName, []), equals(42));
-      String bar = _getBarWithSideEffect();
-      expect(js_util.callMethod(f, bar, []), equals(42));
-    });
-
-    test('callMethod with List edge cases', () {
-      var o = CallMethodTest();
-
-      expect(js_util.callMethod(o, 'zero', []), equals('zero'));
-      expect(js_util.callMethod(o, 'zero', <int>[]), equals('zero'));
-      expect(js_util.callMethod(o, 'zero', List.empty()), equals('zero'));
-      expect(js_util.callMethod(o, 'zero', List<int>.empty()), equals('zero'));
-
-      expect(
-          js_util.callMethod(o, 'two', List<int>.filled(2, 0)), equals('two'));
-      expect(js_util.callMethod(o, 'three', List<int>.generate(3, (i) => i)),
-          equals('three'));
-
-      Iterable<String> iterableStrings = <String>['foo', 'bar'];
-      expect(js_util.callMethod(o, 'two', List.of(iterableStrings)),
-          equals('two'));
-
-      const l1 = [1, 2];
-      const l2 = [3, 4];
-      expect(js_util.callMethod(o, 'four', List.from(l1)..addAll(l2)),
-          equals('four'));
-      expect(js_util.callMethod(o, 'four', l1 + l2), equals('four'));
-      expect(js_util.callMethod(o, 'four', List.unmodifiable([1, 2, 3, 4])),
-          equals('four'));
-
-      var setElements = {1, 2};
-      expect(js_util.callMethod(o, 'two', setElements.toList()), equals('two'));
-
-      var spreadList = [1, 2, 3];
-      expect(js_util.callMethod(o, 'four', [1, ...spreadList]), equals('four'));
-    });
-
-    test('edge cases for lowering to _callMethodUncheckedN', () {
-      var o = CallMethodTest();
-
-      expect(js_util.callMethod(o, 'zero', []), equals('zero'));
-      expect(js_util.callMethod(o, 'one', [1]), equals('one'));
-      expect(js_util.callMethod(o, 'four', [1, 2, 3, 4]), equals('four'));
-      expect(js_util.callMethod(o, 'five', [1, 2, 3, 4, 5]), equals('five'));
-
-      // List with a type declaration, short circuits element checking
-      expect(js_util.callMethod(o, 'two', <int>[1, 2]), equals('two'));
-
-      // List as a variable instead of a List Literal or constant
-      var list = [1, 2];
-      expect(js_util.callMethod(o, 'two', list), equals('two'));
-
-      // Mixed types of elements to check in the given list.
-      var x = 4;
-      var str = 'cat';
-      var b = false;
-      var evens = [2, 4, 6];
-      expect(js_util.callMethod(o, 'four', [x, str, b, evens]), equals('four'));
-      var obj = Object();
-      expect(js_util.callMethod(o, 'one', [obj]), equals('one'));
-      var nullElement = null;
-      expect(js_util.callMethod(o, 'one', [nullElement]), equals('one'));
-
-      // const lists.
-      expect(js_util.callMethod(o, 'one', const [3]), equals('one'));
-      const constList = [10, 20, 30];
-      expect(js_util.callMethod(o, 'three', constList), equals('three'));
-      expect(js_util.callMethod(o, 'one', DartClass.staticConstList),
-          equals('one'));
-    });
-  });
-
-  group('instanceof', () {
-    test('typed object', () {
-      var f = new Foo(42);
-      expect(js_util.instanceof(f, JSFooType), isTrue);
-      expect(js_util.instanceof(f, JSArrayBufferType), isFalse);
-    });
-
-    test('typed literal', () {
-      var literal = new ExampleTypedLiteral();
-      expect(js_util.instanceof(literal, JSFooType), isFalse);
-    });
-  });
-
-  group('callConstructor', () {
-    test('typed object', () {
-      var f = js_util.callConstructor(JSFooType, [42]);
-      expect(f.a, equals(42));
-
-      var f2 =
-          js_util.callConstructor(js_util.getProperty(f, 'constructor'), [5]);
-      expect(f2.a, equals(5));
-    });
-
-    test('typed literal', () {
-      ExampleTypedLiteral literal = js_util.callConstructor(
-          js_util.getProperty(ExampleTypedLiteral(), 'constructor'), []);
-      expect(literal.a, equals(null));
-    });
-
-    test('callConstructor with List edge cases', () {
-      expect(js_util.getProperty(js_util.callConstructor(Zero, []), 'count'),
-          equals(0));
-      expect(
-          js_util.getProperty(js_util.callConstructor(Zero, <int>[]), 'count'),
-          equals(0));
-      expect(
-          js_util.getProperty(
-              js_util.callConstructor(Zero, List.empty()), 'count'),
-          equals(0));
-      expect(
-          js_util.getProperty(
-              js_util.callConstructor(Zero, List<int>.empty()), 'count'),
-          equals(0));
-
-      expect(
-          js_util.getProperty(
-              js_util.callConstructor(Two, List<int>.filled(2, 0)), 'count'),
-          equals(2));
-      expect(
-          js_util.getProperty(
-              js_util.callConstructor(Three, List<int>.generate(3, (i) => i)),
-              'count'),
-          equals(3));
-
-      Iterable<String> iterableStrings = <String>['foo', 'bar'];
-      expect(
-          js_util.getProperty(
-              js_util.callConstructor(Two, List.of(iterableStrings)), 'count'),
-          equals(2));
-
-      const l1 = [1, 2];
-      const l2 = [3, 4];
-      expect(
-          js_util.getProperty(
-              js_util.callConstructor(Four, List.from(l1)..addAll(l2)),
-              'count'),
-          equals(4));
-      expect(
-          js_util.getProperty(js_util.callConstructor(Four, l1 + l2), 'count'),
-          equals(4));
-      expect(
-          js_util.getProperty(
-              js_util.callConstructor(Four, List.unmodifiable([1, 2, 3, 4])),
-              'count'),
-          equals(4));
-
-      var setElements = {1, 2};
-      expect(
-          js_util.getProperty(
-              js_util.callConstructor(Two, setElements.toList()), 'count'),
-          equals(2));
-
-      var spreadList = [1, 2, 3];
-      expect(
-          js_util.getProperty(
-              js_util.callConstructor(Four, [1, ...spreadList]), 'count'),
-          equals(4));
-    });
-
-    test('edge cases for lowering to _callConstructorUncheckedN', () {
-      expect(js_util.getProperty(js_util.callConstructor(Zero, []), 'count'),
-          equals(0));
-      expect(js_util.getProperty(js_util.callConstructor(One, [1]), 'count'),
-          equals(1));
-      expect(
-          js_util.getProperty(
-              js_util.callConstructor(Four, [1, 2, 3, 4]), 'count'),
-          equals(4));
-      expect(
-          js_util.getProperty(
-              js_util.callConstructor(Five, [1, 2, 3, 4, 5]), 'count'),
-          equals(5));
-
-      // List with a type declaration, short circuits element checking
-      expect(
-          js_util.getProperty(
-              js_util.callConstructor(Two, <int>[1, 2]), 'count'),
-          equals(2));
-
-      // List as a variable instead of a List Literal or constant
-      var list = [1, 2];
-      expect(js_util.getProperty(js_util.callConstructor(Two, list), 'count'),
-          equals(2));
-
-      // Mixed types of elements to check in the given list.
-      var x = 4;
-      var str = 'cat';
-      var b = false;
-      var evens = [2, 4, 6];
-      expect(
-          js_util.getProperty(
-              js_util.callConstructor(Four, [x, str, b, evens]), 'count'),
-          equals(4));
-      var obj = Object();
-      expect(js_util.getProperty(js_util.callConstructor(One, [obj]), 'count'),
-          equals(1));
-      var nullElement = null;
-      expect(
-          js_util.getProperty(
-              js_util.callConstructor(One, [nullElement]), 'count'),
-          equals(1));
-
-      // const lists.
-      expect(
-          js_util.getProperty(js_util.callConstructor(One, const [3]), 'count'),
-          equals(1));
-      const constList = [10, 20, 30];
-      expect(
-          js_util.getProperty(
-              js_util.callConstructor(Three, constList), 'count'),
-          equals(3));
-      expect(
-          js_util.getProperty(
-              js_util.callConstructor(One, DartClass.staticConstList), 'count'),
-          equals(1));
-    });
-  });
-}
diff --git a/tests/lib_2/js/method_call_on_object_test.dart b/tests/lib_2/js/method_call_on_object_test.dart
deleted file mode 100644
index 518fe994c1e..00000000000
--- a/tests/lib_2/js/method_call_on_object_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests method calls (typed and dynamic) on various forms of JS objects.
-
-@JS()
-library js_parameters_test;
-
-import 'package:js/js.dart';
-import 'package:expect/expect.dart';
-
-@JS()
-external void eval(String code);
-
-@JS()
-class Foo {
-  external Foo();
-  external dynamic method(int x);
-}
-
-@JS()
-external Foo makeFooLiteral();
-
-@JS()
-external Foo makeFooObjectCreate();
-
-main() {
-  // These examples from based on benchmarks-internal/js
-  eval(r'''
-self.Foo = function Foo() {}
-self.Foo.prototype.method = function(x) { return x + 1; }
-
-self.makeFooLiteral = function() {
-  return {
-    method: function(x) { return x + 1; }
-  }
-}
-
-// Objects created in this way have no prototype.
-self.makeFooObjectCreate = function() {
-  var o = Object.create(null);
-  o.method = function(x) { return x + 1; }
-  return o;
-}
-''');
-
-  var foo = Foo();
-  Expect.equals(2, foo.method(1));
-
-  foo = makeFooLiteral();
-  Expect.equals(2, foo.method(1));
-
-  foo = makeFooObjectCreate();
-  Expect.equals(2, foo.method(1));
-
-  dynamic dynamicFoo = Foo();
-  Expect.equals(2, dynamicFoo.method(1));
-
-  dynamicFoo = makeFooLiteral();
-  Expect.equals(2, dynamicFoo.method(1));
-
-  dynamicFoo = makeFooObjectCreate();
-  Expect.equals(2, dynamicFoo.method(1));
-}
diff --git a/tests/lib_2/js/mock_test.dart b/tests/lib_2/js/mock_test.dart
deleted file mode 100644
index f8a8030bafc..00000000000
--- a/tests/lib_2/js/mock_test.dart
+++ /dev/null
@@ -1,89 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS()
-library mock_test;
-
-import 'package:js/js.dart';
-import 'package:expect/minitest.dart';
-
-@JS()
-external void eval(String code);
-
-@JS()
-class JSClass {}
-
-@JS()
-class DerivedA extends JSClass {
-  external DerivedB get derivedB;
-}
-
-@JS()
-external DerivedA get derivedA;
-
-@JS()
-class DerivedB extends JSClass {}
-
-class MockDerivedA implements DerivedA {
-  final DerivedB derivedB = new MockDerivedB();
-}
-
-class MockDerivedB implements DerivedB {}
-
-void main() {
-  eval(r"""
-    function inherits(child, parent) {
-      if (child.prototype.__proto__) {
-        child.prototype.__proto__ = parent.prototype;
-      } else {
-        function tmp() {};
-        tmp.prototype = parent.prototype;
-        child.prototype = new tmp();
-        child.prototype.constructor = child;
-      }
-    }
-    function JSClass() {
-    }
-    function DerivedA() {
-      JSClass.call(this);
-      this.derivedB = new DerivedB();
-    }
-    inherits(DerivedA, JSClass);
-    function DerivedB() {
-      JSClass.call(this);
-    }
-    inherits(DerivedB, JSClass);
-    var derivedA = new DerivedA();
-  """);
-  test('js', () {
-    var jsA = derivedA;
-    // `is` checks will return true for any two JS interop types.
-    expect(jsA is JSClass, isTrue);
-    expect(jsA is DerivedA, isTrue);
-    expect(jsA is DerivedB, isTrue);
-
-    expect(jsA is! MockDerivedA, isTrue);
-    expect(jsA is! MockDerivedB, isTrue);
-  });
-
-  test('mock', () {
-    var mockA = new MockDerivedA();
-    expect(mockA is JSClass, isTrue); //# 44252: ok
-    expect(mockA is DerivedA, isTrue);
-    // Fails in dart2js
-    // expect(mockA is! DerivedB, isTrue);
-    expect(mockA is MockDerivedA, isTrue);
-    expect(mockA is! MockDerivedB, isTrue);
-
-    var mockB = mockA.derivedB;
-    expect(mockB is JSClass, isTrue); //# 44252: continued
-    // Fails in dart2js
-    // expect(mockB is! DerivedA, isTrue);
-    expect(mockB is DerivedB, isTrue);
-    expect(mockB is! MockDerivedA, isTrue);
-    expect(mockB is MockDerivedB, isTrue);
-  });
-}
diff --git a/tests/lib_2/js/no_library_annotation_test.dart b/tests/lib_2/js/no_library_annotation_test.dart
deleted file mode 100644
index 3e0a7af2375..00000000000
--- a/tests/lib_2/js/no_library_annotation_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that JS-interop works without a @JS annotation on the library itself.
-
-import 'package:js/js.dart';
-import 'package:expect/expect.dart';
-
-@JS()
-external dynamic eval(String code);
-
-void main() {
-  Expect.equals(2, eval("2"));
-}
diff --git a/tests/lib_2/js/null_test.dart b/tests/lib_2/js/null_test.dart
deleted file mode 100644
index 5c689f3af90..00000000000
--- a/tests/lib_2/js/null_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library null_test;
-
-import 'dart:js';
-import 'package:expect/expect.dart';
-
-main() {
-  context.callMethod('eval', ['isNull = function (x) { return x === null; }']);
-  context.callMethod(
-      'eval', ['isUndefined = function (x) { return x === void 0; }']);
-  Expect.isTrue(context['isNull'].apply([null]));
-  Expect.isFalse(context['isUndefined'].apply([null]));
-}
diff --git a/tests/lib_2/js/operator_static_test.dart b/tests/lib_2/js/operator_static_test.dart
deleted file mode 100644
index 335989f4e95..00000000000
--- a/tests/lib_2/js/operator_static_test.dart
+++ /dev/null
@@ -1,141 +0,0 @@
-// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-@JS()
-library operator_test;
-
-import 'package:js/js.dart';
-
-@JS()
-class JSClass {
-  // https://dart.dev/guides/language/language-tour#_operators for the list of
-  // operators allowed by the language.
-  external void operator <(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator >(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator <=(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator >=(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator -(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator +(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator /(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator ~/(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator *(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator %(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator |(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator ^(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator &(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator <<(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator >>(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator >>>(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator [](_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator []=(_, __);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator ~();
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external bool operator ==(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-}
-
-@JS()
-@anonymous
-class AnonymousClass {
-  external void operator <(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator >(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator <=(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator >=(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator -(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator +(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator /(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator ~/(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator *(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator %(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator |(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator ^(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator &(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator <<(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator >>(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator >>>(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator [](_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator []=(_, __);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external void operator ~();
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-  external bool operator ==(_);
-  //                     ^
-  // [web] JS interop classes do not support operator methods, with the exception of '[]' and '[]=' using static interop.
-}
-
-void main() {}
diff --git a/tests/lib_2/js/parameters_test.dart b/tests/lib_2/js/parameters_test.dart
deleted file mode 100644
index b340cb17254..00000000000
--- a/tests/lib_2/js/parameters_test.dart
+++ /dev/null
@@ -1,88 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests positional and optional arguments for various JS objects.
-
-@JS()
-library js_parameters_test;
-
-import 'package:js/js.dart';
-import 'package:expect/expect.dart';
-
-@JS()
-external void eval(String code);
-
-@JS()
-class Foo {
-  external factory Foo();
-  external singleArg(a);
-  external singlePositionalArg([dynamic a]);
-  external mixedPositionalArgs(a, [dynamic b]);
-}
-
-@JS()
-class Bar {
-  external static singleArg(a);
-  external static singlePositionalArg([dynamic a]);
-  external static mixedPositionalArgs(a, [dynamic b]);
-}
-
-external singleArg(a);
-external singlePositionalArg([dynamic a]);
-external mixedPositionalArgs(a, [dynamic b]);
-
-main() {
-  eval(r"""
-    function Foo() {}
-    Foo.prototype.singleArg = function(a) {
-      return a;
-    }
-    Foo.prototype.singlePositionalArg = singleArg;
-    Foo.prototype.mixedPositionalArgs = function(a, b) {
-      if (arguments.length == 0) return a;
-      return arguments[arguments.length - 1];
-    }
-
-    var Bar = {
-      singleArg: function(a) {
-        return a;
-      },
-      singlePositionalArg: singleArg,
-      mixedPositionalArgs: function(a, b) {
-        if (arguments.length == 0) return a;
-        return arguments[arguments.length - 1];
-      },
-    };
-
-    function singleArg(a) {
-      return a;
-    }
-    var singlePositionalArg = singleArg;
-    function mixedPositionalArgs(a, b) {
-      if (arguments.length == 0) return a;
-      return arguments[arguments.length - 1];
-    }
-  """);
-
-  var foo = Foo();
-  Expect.equals(foo.singleArg(2), 2);
-  Expect.equals(foo.singlePositionalArg(2), 2);
-  Expect.equals(foo.singlePositionalArg(), null);
-  Expect.equals(foo.mixedPositionalArgs(3), 3);
-  Expect.equals(foo.mixedPositionalArgs(3, 4), 4);
-
-  Expect.equals(Bar.singleArg(2), 2);
-  Expect.equals(Bar.singlePositionalArg(2), 2);
-  Expect.equals(Bar.singlePositionalArg(), null);
-  Expect.equals(Bar.mixedPositionalArgs(3), 3);
-  Expect.equals(Bar.mixedPositionalArgs(3, 4), 4);
-
-  Expect.equals(singleArg(2), 2);
-  Expect.equals(singlePositionalArg(2), 2);
-  Expect.equals(singlePositionalArg(), null);
-  Expect.equals(mixedPositionalArgs(3), 3);
-  Expect.equals(mixedPositionalArgs(3, 4), 4);
-}
diff --git a/tests/lib_2/js/prototype_access_test.dart b/tests/lib_2/js/prototype_access_test.dart
deleted file mode 100644
index b5499453467..00000000000
--- a/tests/lib_2/js/prototype_access_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS()
-library prototest;
-
-import 'package:js/js.dart';
-import 'package:expect/expect.dart';
-
-@JS('window.ArrayBuffer')
-external Class get arrayBufferClass;
-
-@JS('Function')
-class Class {
-  external dynamic get prototype;
-  external Constructor get constructor;
-  external String get name;
-}
-
-class Normal {
-  int prototype = 42;
-  Normal constructor() {
-    return this;
-  }
-
-  int operator [](int i) => prototype;
-}
-
-@JS()
-class Constructor {
-  external String get name;
-}
-
-void main() {
-  Expect.isTrue(arrayBufferClass.prototype != null);
-  var normal = new Normal();
-  Expect.equals(42, normal.prototype);
-  Expect.equals(42, normal[0]);
-  Expect.isTrue(arrayBufferClass.constructor != null);
-  Expect.isTrue(arrayBufferClass.constructor is Function);
-  Expect.isTrue(arrayBufferClass.constructor is Constructor);
-  Expect.equals("ArrayBuffer", arrayBufferClass.name);
-  Expect.equals("Function", arrayBufferClass.constructor.name);
-
-  Expect.isTrue(normal.constructor is Function);
-  Expect.equals(normal, normal.constructor());
-}
diff --git a/tests/lib_2/js/static_interop_test/constants_test.dart b/tests/lib_2/js/static_interop_test/constants_test.dart
deleted file mode 100644
index 4ed689fcc48..00000000000
--- a/tests/lib_2/js/static_interop_test/constants_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-@JS()
-library constants_test;
-
-import 'dart:html';
-
-import 'package:js/js.dart';
-
-@JS()
-@staticInterop
-class JSClass {}
-
-class Container<T> {
-  const Container();
-
-  void accept(T t) {}
-}
-
-void main() {
-  // Without erasure of types in constants, `T` above should be `JSClass`
-  // instead of `JavaScriptObject`. This will trigger a type failure when we
-  // call `accept` with a `dart:html` object.
-  const container = Container<JSClass>();
-  container.accept(window as JSClass);
-}
diff --git a/tests/lib_2/js/static_interop_test/disallowed_generative_constructor_static_test.dart b/tests/lib_2/js/static_interop_test/disallowed_generative_constructor_static_test.dart
deleted file mode 100644
index 6280fec21fc..00000000000
--- a/tests/lib_2/js/static_interop_test/disallowed_generative_constructor_static_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS()
-library disallowed_generative_constructor_static_test;
-
-import 'package:js/js.dart';
-
-@JS()
-@staticInterop
-class JSClass {
-  external JSClass();
-  //       ^
-  // [web] `@staticInterop` classes should not contain any generative constructors.
-  external JSClass.namedConstructor();
-  //       ^
-  // [web] `@staticInterop` classes should not contain any generative constructors.
-}
-
-@JS()
-@staticInterop
-class SyntheticConstructor {}
-
-void main() {
-  SyntheticConstructor();
-//^
-// [web] Synthetic constructors on `@staticInterop` classes can not be used.
-}
diff --git a/tests/lib_2/js/static_interop_test/external_extension_members_test.dart b/tests/lib_2/js/static_interop_test/external_extension_members_test.dart
deleted file mode 100644
index db80c3fb8bf..00000000000
--- a/tests/lib_2/js/static_interop_test/external_extension_members_test.dart
+++ /dev/null
@@ -1,220 +0,0 @@
-// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Tests behavior of external extension members, which are routed to js_util
-// calls by a CFE transformation.
-
-@JS()
-library external_extension_members_test;
-
-import 'dart:js_interop';
-
-import 'package:expect/expect.dart';
-import 'package:expect/minitest.dart';
-// To test non-JS types for @staticInterop.
-import 'package:js/js.dart' as pkgJs;
-import 'package:js/js_util.dart' as js_util;
-
-@JS()
-external void eval(String code);
-
-@pkgJs.JS()
-@pkgJs.staticInterop
-class Foo<T extends JSAny, U extends Nested> {
-  external factory Foo(int a);
-}
-
-extension FooExt<T extends JSAny, U extends Nested> on Foo<T, U> {
-  external get getter;
-  @JS('getterAnnotation')
-  external get annotatedGetter;
-
-  external set setter(_);
-  @JS('setterAnnotation')
-  external set annotatedSetter(_);
-
-  external num getField();
-  external void setField10([optionalArgument]);
-  @JS('toString')
-  external String extToString();
-  external dynamic getFirstEl(list);
-  external num sumFn(a, b);
-  @JS('sumFn')
-  external num otherSumFn(a, b);
-
-  @JS('field')
-  external T get fieldT;
-  @JS('field')
-  external set fieldT(T _);
-  @JS('sumFn')
-  external T sumFnT(T a, T b);
-  @JS('sumFn')
-  external R sumFnGeneric<R extends JSAny, P extends JSAny>(P a, [P b]);
-
-  external Nested get nested;
-  external set nested(Nested _);
-  external Nested combineNested(Nested a, Nested b);
-
-  @JS('nested')
-  external U get nestedU;
-  @JS('nested')
-  external set nestedU(U _);
-  @JS('combineNested')
-  external U combineNestedU(U a, [U b]);
-  @JS('combineNested')
-  external R combineNestedGeneric<R extends Nested>(R a, [R b]);
-}
-
-@pkgJs.JS('module.Bar')
-@pkgJs.staticInterop
-class Bar {
-  external factory Bar(int a);
-}
-
-extension BarExt on Bar {
-  @JS('field')
-  external get barFieldGetter;
-  @JS('field')
-  external set barFieldSetter(_);
-}
-
-@JS()
-@staticInterop
-class Nested<T extends JSAny> {
-  external factory Nested(T value);
-}
-
-extension NestedExt<T extends JSAny> on Nested<T> {
-  external T get value;
-}
-
-void main() {
-  eval(r"""
-    function Foo(a) {
-      this.field = a;
-      this.fieldAnnotation = a;
-      this.finalField = a;
-
-      this.getter = a;
-      this.getterAnnotation = a;
-    }
-
-    Foo.prototype.toString = function() {
-      return "Foo: " + this.field;
-    }
-
-    Foo.prototype.getField = function() {
-      return this.field;
-    }
-
-    Foo.prototype.setField10 = function(optionalArgument) {
-      this.field = optionalArgument;
-    }
-
-    Foo.prototype.getFirstEl = function(list) {
-      return list[0];
-    }
-
-    Foo.prototype.sumFn = function(a, b) {
-      return a + b;
-    }
-
-    Foo.prototype.combineNested = function(a, b) {
-      return new Nested(a.value + b.value);
-    }
-
-    var module = {Bar: Foo};
-
-    function Nested(value) {
-      this.value = value;
-    }
-    """);
-
-  test('getters', () {
-    var foo = Foo(42);
-    expect(foo.getter, equals(42));
-    expect(foo.annotatedGetter, equals(42));
-
-    js_util.setProperty(foo, 'getterAnnotation', 'eel');
-    expect(foo.annotatedGetter, equals('eel'));
-  });
-
-  test('setters', () {
-    var foo = Foo(42);
-    foo.setter = 'starfish';
-    expect(js_util.getProperty(foo, 'setter'), equals('starfish'));
-
-    foo.annotatedSetter = 'whale';
-    expect(js_util.getProperty(foo, 'setterAnnotation'), equals('whale'));
-  });
-
-  test('methods', () {
-    var foo = Foo(42);
-
-    expect(foo.getField(), equals(42));
-    expect(foo.extToString(), equals('Foo: 42'));
-    expect(foo.getFirstEl([1, 2, 3]), equals(1));
-    expect(foo.sumFn(2, 3), equals(5));
-    expect(foo.otherSumFn(10, 5), equals(15));
-  });
-
-  test('module class', () {
-    var bar = Bar(5);
-    expect(js_util.getProperty(bar, 'fieldAnnotation'), equals(5));
-    expect(bar.barFieldGetter, equals(5));
-    expect(js_util.getProperty(bar, 'field'), equals(5));
-
-    bar.barFieldSetter = 10;
-    expect(js_util.getProperty(bar, 'fieldAnnotation'), equals(5));
-    expect(js_util.getProperty(bar, 'field'), equals(10));
-  });
-
-  test('type parameters', () {
-    final foo = Foo<JSString, Nested>(0);
-    final value = 'value';
-    final jsValue = value.toJS;
-    foo.fieldT = jsValue;
-    expect(foo.fieldT.toDart, value);
-    expect(foo.sumFnT(jsValue, jsValue).toDart, '$value$value');
-    expect(foo.sumFnGeneric<JSNumber, JSNumber>(0.toJS, 0.toJS).toDartInt, 0);
-
-    foo.nested = Nested(jsValue);
-    expect((foo.nested as Nested<JSString>).value.toDart, value);
-    expect(
-        (foo.combineNested(Nested(value.toJS), Nested(jsValue))
-                as Nested<JSString>)
-            .value
-            .toDart,
-        '$value$value');
-
-    foo.nestedU = Nested(jsValue);
-    expect((foo.nestedU as Nested<JSString>).value.toDart, value);
-    expect(
-        (foo.combineNestedU(Nested(jsValue), Nested(jsValue))
-                as Nested<JSString>)
-            .value
-            .toDart,
-        '$value$value');
-    expect(
-        foo.combineNestedGeneric(Nested(jsValue), Nested(jsValue)).value.toDart,
-        '$value$value');
-
-    // Try invalid generics.
-    (foo as Foo<JSNumber, Nested>).fieldT = 0.toJS;
-    // dart2wasm uses a JSStringImpl here for conversion without validating the
-    // extern ref, so we would only see that it's not a String when we call
-    // methods on it.
-    Expect.throws(() => foo.fieldT.toDart.toLowerCase());
-    Expect.throws(() => foo
-        .sumFnGeneric<JSNumber, JSString>(value.toJS, value.toJS)
-        .toDartInt
-        .isEven);
-    Expect.throws(() => foo
-        .sumFnGeneric<JSString, JSNumber>(0.toJS, 0.toJS)
-        .toDart
-        .toLowerCase());
-  });
-}
diff --git a/tests/lib_2/js/static_interop_test/external_member_type_parameters_static_test.dart b/tests/lib_2/js/static_interop_test/external_member_type_parameters_static_test.dart
deleted file mode 100644
index ec682eeb223..00000000000
--- a/tests/lib_2/js/static_interop_test/external_member_type_parameters_static_test.dart
+++ /dev/null
@@ -1,126 +0,0 @@
-// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that type parameters in external static interop members extend a static
-// interop type when using dart:js_interop.
-
-library external_member_type_parameters_static_test;
-
-import 'dart:js_interop';
-import 'package:js/js.dart' as pkgJs;
-
-@JS()
-external T validTopLevel<T extends JSObject>(T t);
-
-@JS()
-external T invalidTopLevel<T>(T t);
-//         ^
-// [web] External static interop members can only use type parameters that extend either a static interop type or one of the 'dart:js_interop' types.
-
-typedef Typedef<T> = T Function();
-
-@JS()
-@staticInterop
-class JSList<T> {}
-
-@JS()
-@staticInterop
-class Uninstantiated<W, X extends Instantiated> {
-  external factory Uninstantiated(W w);
-  //               ^
-  // [web] External static interop members can only use type parameters that extend either a static interop type or one of the 'dart:js_interop' types.
-  external factory Uninstantiated.named(X x);
-}
-
-extension UninstantiatedExtension<T, U extends JSAny, V extends Instantiated>
-    on Uninstantiated {
-  external T fieldT;
-  //         ^
-  // [web] External static interop members can only use type parameters that extend either a static interop type or one of the 'dart:js_interop' types.
-  external U fieldU;
-  external V fieldV;
-
-  T get getTDart => throw UnimplementedError();
-  external T get getT;
-  //             ^
-  // [web] External static interop members can only use type parameters that extend either a static interop type or one of the 'dart:js_interop' types.
-  external U get getU;
-  external V get getV;
-
-  set setTDart(T t) => throw UnimplementedError();
-  external set setT(T t);
-  //           ^
-  // [web] External static interop members can only use type parameters that extend either a static interop type or one of the 'dart:js_interop' types.
-  external set setU(U u);
-  external set setV(V v);
-
-  T returnTDart() => throw UnimplementedError();
-  external T returnT();
-  //         ^
-  // [web] External static interop members can only use type parameters that extend either a static interop type or one of the 'dart:js_interop' types.
-  external U returnU();
-  external V returnV();
-
-  void consumeTDart(T t) => throw UnimplementedError();
-  external void consumeT(T t);
-  //            ^
-  // [web] External static interop members can only use type parameters that extend either a static interop type or one of the 'dart:js_interop' types.
-  external void consumeU(U u);
-  external void consumeV(V v);
-
-  // Test type parameters in a nested type context.
-  JSList<Typedef<T>> get getNestedTDart => throw UnimplementedError();
-  // No error as JSList is an interop type.
-  external JSList<Typedef<T>> get getNestedT;
-  external JSList<Typedef<U>> get getNestedU;
-  external JSList<Typedef<V>> get getNestedV;
-
-  // Test type parameters that are declared by the member.
-  W returnWDart<W>() => throw UnimplementedError();
-  external W returnW<W>();
-  //         ^
-  // [web] External static interop members can only use type parameters that extend either a static interop type or one of the 'dart:js_interop' types.
-  external X returnX<X extends JSArray>();
-}
-
-// We should ignore classes and extensions on classes that use package:js to
-// avoid a breaking change.
-@pkgJs.JS()
-external T pkgJsTopLevel<T>(T t);
-
-@pkgJs.JS()
-@staticInterop
-class PkgJsStaticInterop<T> {
-  external factory PkgJsStaticInterop(T t);
-}
-
-extension PkgJsStaticInteropExtension<T> on PkgJsStaticInterop<T> {
-  external T getT;
-}
-
-@pkgJs.JS()
-class PkgJs<T> {
-  external PkgJs(T t);
-}
-
-extension PkgJsExtension<T> on PkgJs<T> {
-  external T getT;
-}
-
-// Test generic types where all the type parameters are instantiated.
-@JS()
-@staticInterop
-class Instantiated {
-  external factory Instantiated(JSList<JSNumber> list);
-}
-
-extension InstantiatedExtension on Instantiated {
-  external JSList<int> fieldList;
-  external JSList<int> get getList;
-  external set setList(JSList<int> list);
-  external JSList<int> returnList();
-  external void consumeList(JSList<int> list);
-}
-
-void main() {}
diff --git a/tests/lib_2/js/static_interop_test/external_static_member_lowerings_test.dart b/tests/lib_2/js/static_interop_test/external_static_member_lowerings_test.dart
deleted file mode 100644
index 0773976ee46..00000000000
--- a/tests/lib_2/js/static_interop_test/external_static_member_lowerings_test.dart
+++ /dev/null
@@ -1,158 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-@JS()
-library external_static_member_lowerings_test;
-
-import 'dart:js_interop';
-
-import 'package:expect/minitest.dart';
-import 'package:js/js.dart' show staticInterop;
-
-@JS()
-external void eval(String code);
-
-@JS()
-@staticInterop
-class ExternalStatic {
-  external factory ExternalStatic(String initialValue);
-  external factory ExternalStatic.named(
-      [String initialValue = 'uninitialized']);
-  // External redirecting factories are not allowed.
-
-  external static String field;
-  @JS('field')
-  external static String renamedField;
-  external static final String finalField;
-
-  external static String get getSet;
-  external static set getSet(String val);
-  @JS('getSet')
-  external static String get renamedGetSet;
-  @JS('getSet')
-  external static set renamedGetSet(String val);
-
-  external static String method();
-  external static String differentArgsMethod(String a, [String b = '']);
-  @JS('method')
-  external static String renamedMethod();
-}
-
-extension on ExternalStatic {
-  external String? get initialValue;
-}
-
-// Top-level fields.
-@JS()
-external String field;
-@JS('field')
-external String renamedField;
-@JS()
-external final String finalField;
-
-// Top-level getters and setters.
-@JS()
-external String get getSet;
-@JS()
-external set getSet(String val);
-@JS('getSet')
-external String get renamedGetSet;
-@JS('getSet')
-external set renamedGetSet(String val);
-
-// Top-level methods.
-@JS()
-external String method();
-@JS()
-external String differentArgsMethod(String a, [String b = '']);
-@JS('method')
-external String renamedMethod();
-
-void main() {
-  eval('''
-    globalThis.ExternalStatic = function ExternalStatic(initialValue) {
-      this.initialValue = initialValue;
-    }
-    globalThis.ExternalStatic.method = function() {
-      return 'method';
-    }
-    globalThis.ExternalStatic.differentArgsMethod = function(a, b) {
-      return a + b;
-    }
-    globalThis.ExternalStatic.field = 'field';
-    globalThis.ExternalStatic.finalField = 'finalField';
-    globalThis.ExternalStatic.getSet = 'getSet';
-
-    globalThis.field = 'field';
-    globalThis.finalField = 'finalField';
-    globalThis.getSet = 'getSet';
-    globalThis.method = function() {
-      return 'method';
-    }
-    globalThis.differentArgsMethod = function(a, b) {
-      return a + b;
-    }
-  ''');
-  testClassStaticMembers();
-  testTopLevelMembers();
-  testFactories();
-}
-
-void testClassStaticMembers() {
-  // Fields.
-  expect(ExternalStatic.field, 'field');
-  ExternalStatic.field = 'modified';
-  expect(ExternalStatic.field, 'modified');
-  expect(ExternalStatic.renamedField, 'modified');
-  ExternalStatic.renamedField = 'renamedField';
-  expect(ExternalStatic.renamedField, 'renamedField');
-  expect(ExternalStatic.finalField, 'finalField');
-
-  // Getters and setters.
-  expect(ExternalStatic.getSet, 'getSet');
-  ExternalStatic.getSet = 'modified';
-  expect(ExternalStatic.getSet, 'modified');
-  expect(ExternalStatic.renamedGetSet, 'modified');
-  ExternalStatic.renamedGetSet = 'renamedGetSet';
-  expect(ExternalStatic.renamedGetSet, 'renamedGetSet');
-
-  // Methods.
-  expect(ExternalStatic.method(), 'method');
-  expect(ExternalStatic.differentArgsMethod('method'), 'methodundefined');
-  expect(ExternalStatic.renamedMethod(), 'method');
-}
-
-void testTopLevelMembers() {
-  // Fields.
-  expect(field, 'field');
-  field = 'modified';
-  expect(field, 'modified');
-  expect(renamedField, 'modified');
-  renamedField = 'renamedField';
-  expect(renamedField, 'renamedField');
-  expect(finalField, 'finalField');
-
-  // Getters and setters.
-  expect(getSet, 'getSet');
-  getSet = 'modified';
-  expect(getSet, 'modified');
-  expect(renamedGetSet, 'modified');
-  renamedGetSet = 'renamedGetSet';
-  expect(renamedGetSet, 'renamedGetSet');
-
-  // Methods.
-  expect(method(), 'method');
-  expect(differentArgsMethod('method'), 'methodundefined');
-  expect(renamedMethod(), 'method');
-}
-
-void testFactories() {
-  // Non-object literal factories.
-  var initialized = 'initialized';
-
-  var externalStatic = ExternalStatic(initialized);
-  expect(externalStatic.initialValue, initialized);
-  externalStatic = ExternalStatic.named();
-  expect(externalStatic.initialValue, null);
-}
diff --git a/tests/lib_2/js/static_interop_test/external_static_member_lowerings_trusttypes_test.dart b/tests/lib_2/js/static_interop_test/external_static_member_lowerings_trusttypes_test.dart
deleted file mode 100644
index b81efb0f43b..00000000000
--- a/tests/lib_2/js/static_interop_test/external_static_member_lowerings_trusttypes_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-@JS()
-library external_static_member_lowerings_trusttypes_test;
-
-import 'dart:js_interop';
-
-import 'package:expect/minitest.dart';
-import 'package:js/js.dart' show trustTypes, staticInterop;
-
-@JS()
-external void eval(String code);
-
-@JS('ExternalStatic')
-@staticInterop
-@trustTypes
-class ExternalStaticTrustType {
-  external static double field;
-  external static double get getSet;
-  external static double method();
-}
-
-// dart2js is smart enough to see that the expectations below will never be true
-// as the types are incompatible. Therefore, it optimizes the expectation code
-// to *always fail*, even if the values are the same! Since we're breaking
-// soundness with @trustTypes, we need to confuse dart2js enough that it doesn't
-// do those optimizations, hence this.
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-void main() {
-  eval('''
-    globalThis.ExternalStatic = function ExternalStatic() {}
-    globalThis.ExternalStatic.method = function() {
-      return 'method';
-    }
-    globalThis.ExternalStatic.field = 'field';
-    globalThis.ExternalStatic.getSet = 'getSet';
-  ''');
-
-  // Use wrong return type in conjunction with `@trustTypes`.
-  expect(confuse(ExternalStaticTrustType.field), 'field');
-
-  expect(confuse(ExternalStaticTrustType.getSet), 'getSet');
-
-  expect(confuse(ExternalStaticTrustType.method()), 'method');
-}
diff --git a/tests/lib_2/js/static_interop_test/external_static_member_lowerings_with_namespaces_test.dart b/tests/lib_2/js/static_interop_test/external_static_member_lowerings_with_namespaces_test.dart
deleted file mode 100644
index d1e05baad4e..00000000000
--- a/tests/lib_2/js/static_interop_test/external_static_member_lowerings_with_namespaces_test.dart
+++ /dev/null
@@ -1,175 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Like `external_static_member_lowerings_test.dart`, but uses the namespaces
-// in the `@JS` annotations instead.
-
-@JS('library1.library2')
-library external_static_member_lowerings_with_namespaces_test;
-
-import 'dart:js_interop';
-import 'dart:js_util' as js_util;
-
-import 'package:expect/minitest.dart';
-import 'package:js/js.dart' show staticInterop;
-
-@JS('library3.ExternalStatic')
-@staticInterop
-class ExternalStatic {
-  external factory ExternalStatic(String initialValue);
-  external factory ExternalStatic.named(
-      [String initialValue = 'uninitialized']);
-  // External redirecting factories are not allowed.
-
-  external static String field;
-  @JS('field')
-  external static String renamedField;
-  external static final String finalField;
-
-  external static String get getSet;
-  external static set getSet(String val);
-  @JS('getSet')
-  external static String get renamedGetSet;
-  @JS('getSet')
-  external static set renamedGetSet(String val);
-
-  external static String method();
-  external static String differentArgsMethod(String a, [String b = '']);
-  @JS('method')
-  external static String renamedMethod();
-}
-
-extension on ExternalStatic {
-  external String? get initialValue;
-}
-
-void main() {
-  // Use `callMethod` instead of top-level external to `eval` since the library
-  // is namespaced.
-  js_util.callMethod(js_util.globalThis, 'eval', [
-    '''
-    var library3 = {};
-    var library2 = {library3: library3};
-    var library1 = {library2: library2};
-    globalThis.library1 = library1;
-
-    library3.ExternalStatic = function ExternalStatic(initialValue) {
-      this.initialValue = initialValue;
-    }
-    library3.ExternalStatic.method = function() {
-      return 'method';
-    }
-    library3.ExternalStatic.differentArgsMethod = function(a, b) {
-      return a + b;
-    }
-    library3.ExternalStatic.field = 'field';
-    library3.ExternalStatic.finalField = 'finalField';
-    library3.ExternalStatic.getSet = 'getSet';
-
-    library2.field = 'field';
-    library2.getSet = 'getSet';
-    library2.method = function() {
-      return 'method';
-    }
-    library2.differentArgsMethod = function(a, b) {
-      return a + b;
-    }
-    library3.namespacedField = 'namespacedField';
-    library3.namespacedGetSet = 'namespacedGetSet';
-    library3.namespacedMethod = function() {
-      return 'namespacedMethod';
-    }
-
-  '''
-  ]);
-  testClassStaticMembers();
-  testTopLevelMembers();
-  testFactories();
-}
-
-// Top-level fields.
-@JS()
-external String field;
-@JS('library3.namespacedField')
-external String namespacedField;
-@JS('field')
-external final String finalField;
-
-// Top-level getters and setters.
-@JS()
-external String get getSet;
-@JS()
-external set getSet(String val);
-@JS('library3.namespacedGetSet')
-external String get namespacedGetSet;
-@JS('library3.namespacedGetSet')
-external set namespacedGetSet(String val);
-
-// Top-level methods.
-@JS()
-external String method();
-@JS()
-external String differentArgsMethod(String a, [String b = '']);
-@JS('library3.namespacedMethod')
-external String namespacedMethod();
-
-void testClassStaticMembers() {
-  // Fields.
-  expect(ExternalStatic.field, 'field');
-  ExternalStatic.field = 'modified';
-  expect(ExternalStatic.field, 'modified');
-  expect(ExternalStatic.renamedField, 'modified');
-  ExternalStatic.renamedField = 'renamedField';
-  expect(ExternalStatic.renamedField, 'renamedField');
-  expect(ExternalStatic.finalField, 'finalField');
-
-  // Getters and setters.
-  expect(ExternalStatic.getSet, 'getSet');
-  ExternalStatic.getSet = 'modified';
-  expect(ExternalStatic.getSet, 'modified');
-  expect(ExternalStatic.renamedGetSet, 'modified');
-  ExternalStatic.renamedGetSet = 'renamedGetSet';
-  expect(ExternalStatic.renamedGetSet, 'renamedGetSet');
-
-  // Methods.
-  expect(ExternalStatic.method(), 'method');
-  expect(ExternalStatic.differentArgsMethod('method'), 'methodundefined');
-  expect(ExternalStatic.renamedMethod(), 'method');
-}
-
-void testTopLevelMembers() {
-  // Test a variety of renaming and namespacing to make sure we're handling '.'
-  // correctly.
-  // Fields.
-  expect(field, 'field');
-  field = 'modified';
-  expect(field, 'modified');
-  expect(namespacedField, 'namespacedField');
-  namespacedField = 'modified';
-  expect(namespacedField, 'modified');
-  expect(finalField, 'modified');
-
-  // Getters and setters.
-  expect(getSet, 'getSet');
-  getSet = 'modified';
-  expect(getSet, 'modified');
-  expect(namespacedGetSet, 'namespacedGetSet');
-  namespacedGetSet = 'modified';
-  expect(namespacedGetSet, 'modified');
-
-  // Methods.
-  expect(method(), 'method');
-  expect(differentArgsMethod('method'), 'methodundefined');
-  expect(namespacedMethod(), 'namespacedMethod');
-}
-
-void testFactories() {
-  // Non-object literal factories.
-  var initialized = 'initialized';
-
-  var externalStatic = ExternalStatic(initialized);
-  expect(externalStatic.initialValue, initialized);
-  externalStatic = ExternalStatic.named();
-  expect(externalStatic.initialValue, null);
-}
diff --git a/tests/lib_2/js/static_interop_test/futurevaluetype_test.dart b/tests/lib_2/js/static_interop_test/futurevaluetype_test.dart
deleted file mode 100644
index df1e0298ab4..00000000000
--- a/tests/lib_2/js/static_interop_test/futurevaluetype_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that `FunctionNode`'s `futureValueType`s are correctly transformed.
-// See https://github.com/dart-lang/sdk/issues/48835 for more details.
-
-@JS()
-library futurevaluetype_test;
-
-import 'dart:html';
-
-import 'package:js/js.dart';
-
-@JS()
-@staticInterop
-class JSWindow {}
-
-// `futureValueType` corresponds to the `JSWindow` type parameter in the return
-// value here. If this isn't correctly erased, we should see a runtime type
-// error when using this method, as we'll be attempting to return a `@Native`
-// type (`Window`) where a `package:js` type is expected instead of a
-// `JavaScriptObject`.
-Future<JSWindow> returnInteropType() async {
-  return window as JSWindow;
-}
-
-void main() async {
-  await returnInteropType();
-}
diff --git a/tests/lib_2/js/static_interop_test/js_and_staticinterop_annotation_static_test.dart b/tests/lib_2/js/static_interop_test/js_and_staticinterop_annotation_static_test.dart
deleted file mode 100644
index 470c97d5730..00000000000
--- a/tests/lib_2/js/static_interop_test/js_and_staticinterop_annotation_static_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@JS()
-library js_and_staticinterop_annotation_static_test;
-
-import 'package:js/js.dart';
-
-@staticInterop
-class NoJSAnnotation {}
-//    ^
-// [web] `@staticInterop` classes should also have the `@JS` annotation.
-
-@anonymous
-@staticInterop
-class AnonymousNoJSAnnotation {}
-//    ^
-// [web] `@staticInterop` classes should also have the `@JS` annotation.
diff --git a/tests/lib_2/js/static_interop_test/member_test.dart b/tests/lib_2/js/static_interop_test/member_test.dart
deleted file mode 100644
index 0c2dc08cb4b..00000000000
--- a/tests/lib_2/js/static_interop_test/member_test.dart
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that instance members are disallowed from static interop classes.
-
-@JS()
-library member_test;
-
-import 'package:js/js.dart';
-
-@JS()
-@staticInterop
-class StaticJSClass {
-  external factory StaticJSClass();
-  external factory StaticJSClass.externalFactory();
-  factory StaticJSClass.redirectingFactory() = StaticJSClass;
-  factory StaticJSClass.factory() => StaticJSClass();
-
-  static String staticField = 'staticField';
-  static String get staticGetSet => staticField;
-  static set staticGetSet(String val) => staticField = val;
-  static String staticMethod() => 'staticMethod';
-
-  external static String externalStaticField;
-  external static String get externalStaticGetSet;
-  external static set externalStaticGetSet(String val);
-  external static String externalStaticMethod();
-
-  external int get getter;
-  //               ^
-  // [web] JS interop class 'StaticJSClass' with `@staticInterop` annotation cannot declare instance members.
-  external set setter(_);
-  //           ^
-  // [web] JS interop class 'StaticJSClass' with `@staticInterop` annotation cannot declare instance members.
-  external int method();
-  //           ^
-  // [web] JS interop class 'StaticJSClass' with `@staticInterop` annotation cannot declare instance members.
-  external int field;
-  //           ^
-  // [web] JS interop class 'StaticJSClass' with `@staticInterop` annotation cannot declare instance members.
-}
-
-extension StaticJSClassExtension on StaticJSClass {
-  external String externalField;
-  external String get externalGetSet;
-  external set externalGetSet(String val);
-  external String externalMethod();
-
-  String get getSet => this.externalGetSet;
-  set getSet(String val) => this.externalGetSet = val;
-  String method() => 'method';
-}
-
-// Abstract classes should behave the same way as concrete classes.
-@JS()
-@staticInterop
-abstract class StaticAbstract {}
-
-// Abstract classes with instance members should be non-static interop. The
-// following have abstract or concrete members, so they're considered non-static
-// interop.
-@JS()
-abstract class NonStaticAbstract {
-  int abstractMethod();
-}
-
-@JS()
-@staticInterop
-abstract class NonStaticAbstractWithAbstractMembers {
-  int abstractMethod();
-  //  ^
-  // [web] JS interop class 'NonStaticAbstractWithAbstractMembers' with `@staticInterop` annotation cannot declare instance members.
-}
-
-@JS()
-@staticInterop
-abstract class NonStaticAbstractWithConcreteMembers {
-  external int instanceMethod();
-  //           ^
-  // [web] JS interop class 'NonStaticAbstractWithConcreteMembers' with `@staticInterop` annotation cannot declare instance members.
-}
diff --git a/tests/lib_2/js/static_interop_test/regress_51307_test.dart b/tests/lib_2/js/static_interop_test/regress_51307_test.dart
deleted file mode 100644
index ae0fff427ae..00000000000
--- a/tests/lib_2/js/static_interop_test/regress_51307_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-/// Regression for https://github.com/dart-lang/sdk/issues/51307
-///
-/// The interceptor for JavaScriptObjects was not emitted if the only
-/// uses were implicit through a cast and no direct instantiation.
-
-import 'package:js/js.dart';
-import 'package:js/js_util.dart' as js_util;
-
-@JS()
-@staticInterop
-class A {}
-
-extension E on A {
-  external int get value;
-}
-
-void main() => js_util.jsify(<String, Object>{'value': 1}) as A;
diff --git a/tests/lib_2/js/static_interop_test/subtype_js_types_static_test.dart b/tests/lib_2/js/static_interop_test/subtype_js_types_static_test.dart
deleted file mode 100644
index 408b6881de4..00000000000
--- a/tests/lib_2/js/static_interop_test/subtype_js_types_static_test.dart
+++ /dev/null
@@ -1,279 +0,0 @@
-// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-@JS()
-library subtype_js_types_static_test;
-
-import 'dart:js_interop';
-
-@JS()
-@staticInterop
-class ExtendsJSAny extends JSAny {}
-//    ^
-// [web] The superclass, 'JSAny', has no unnamed constructor that takes no arguments.
-//                         ^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NO_GENERATIVE_CONSTRUCTORS_IN_SUPERCLASS
-
-@JS()
-@staticInterop
-class ImplementsJSAny implements JSAny {}
-
-@JS()
-@staticInterop
-class ExtendsJSObject extends JSObject {}
-//    ^
-// [web] The superclass, 'JSObject', has no unnamed constructor that takes no arguments.
-//                            ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NO_GENERATIVE_CONSTRUCTORS_IN_SUPERCLASS
-
-@JS()
-@staticInterop
-class ImplementsJSObject implements JSObject {}
-
-@JS()
-@staticInterop
-class ExtendsJSFunction extends JSFunction {}
-//    ^
-// [web] `@staticInterop` class 'ExtendsJSFunction' cannot have 'JSFunction' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ImplementsJSFunction implements JSFunction {}
-//    ^
-// [web] `@staticInterop` class 'ImplementsJSFunction' cannot have 'JSFunction' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ExtendsJSExportedDartFunction extends JSExportedDartFunction {}
-//    ^
-// [web] `@staticInterop` class 'ExtendsJSExportedDartFunction' cannot have 'JSExportedDartFunction' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ImplementsJSExportedDartFunction implements JSExportedDartFunction {}
-//    ^
-// [web] `@staticInterop` class 'ImplementsJSExportedDartFunction' cannot have 'JSExportedDartFunction' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ExtendsJSArray extends JSArray {
-//    ^
-// [web] `@staticInterop` class 'ExtendsJSArray' cannot have 'JSArray' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-  // Silence error about extending class with only factories.
-  external factory ExtendsJSArray();
-}
-
-@JS()
-@staticInterop
-class ImplementsJSArray implements JSArray {}
-//    ^
-// [web] `@staticInterop` class 'ImplementsJSArray' cannot have 'JSArray' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ExtendsJSBoxedDartObject extends JSBoxedDartObject {}
-//    ^
-// [web] `@staticInterop` class 'ExtendsJSBoxedDartObject' cannot have 'JSBoxedDartObject' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ImplementsJSBoxedDartObject implements JSBoxedDartObject {}
-//    ^
-// [web] `@staticInterop` class 'ImplementsJSBoxedDartObject' cannot have 'JSBoxedDartObject' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ExtendsJSArrayBuffer extends JSArrayBuffer {}
-//    ^
-// [web] `@staticInterop` class 'ExtendsJSArrayBuffer' cannot have 'JSArrayBuffer' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ImplementsJSArrayBuffer implements JSArrayBuffer {}
-//    ^
-// [web] `@staticInterop` class 'ImplementsJSArrayBuffer' cannot have 'JSArrayBuffer' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ExtendsJSDataView extends JSDataView {}
-//    ^
-// [web] `@staticInterop` class 'ExtendsJSDataView' cannot have 'JSDataView' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ImplementsJSDataView implements JSDataView {}
-//    ^
-// [web] `@staticInterop` class 'ImplementsJSDataView' cannot have 'JSDataView' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ExtendsJSTypedArray extends JSTypedArray {}
-//    ^
-// [web] `@staticInterop` class 'ExtendsJSTypedArray' cannot have 'JSTypedArray' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ImplementsJSTypedArray implements JSTypedArray {}
-//    ^
-// [web] `@staticInterop` class 'ImplementsJSTypedArray' cannot have 'JSTypedArray' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ExtendsJSInt8Array extends JSInt8Array {}
-//    ^
-// [web] `@staticInterop` class 'ExtendsJSInt8Array' cannot have 'JSInt8Array' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ImplementsJSInt8Array implements JSInt8Array {}
-//    ^
-// [web] `@staticInterop` class 'ImplementsJSInt8Array' cannot have 'JSInt8Array' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ExtendsJSUint8Array extends JSUint8Array {}
-//    ^
-// [web] `@staticInterop` class 'ExtendsJSUint8Array' cannot have 'JSUint8Array' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ImplementsJSUint8Array implements JSUint8Array {}
-//    ^
-// [web] `@staticInterop` class 'ImplementsJSUint8Array' cannot have 'JSUint8Array' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ExtendsJSUint8ClampedArray extends JSUint8ClampedArray {}
-//    ^
-// [web] `@staticInterop` class 'ExtendsJSUint8ClampedArray' cannot have 'JSUint8ClampedArray' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ImplementsJSUint8ClampedArray implements JSUint8ClampedArray {}
-//    ^
-// [web] `@staticInterop` class 'ImplementsJSUint8ClampedArray' cannot have 'JSUint8ClampedArray' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ExtendsJSInt16Array extends JSInt16Array {}
-//    ^
-// [web] `@staticInterop` class 'ExtendsJSInt16Array' cannot have 'JSInt16Array' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ImplementsJSInt16Array implements JSInt16Array {}
-//    ^
-// [web] `@staticInterop` class 'ImplementsJSInt16Array' cannot have 'JSInt16Array' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ExtendsJSUint16Array extends JSUint16Array {}
-//    ^
-// [web] `@staticInterop` class 'ExtendsJSUint16Array' cannot have 'JSUint16Array' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ImplementsJSUint16Array implements JSUint16Array {}
-//    ^
-// [web] `@staticInterop` class 'ImplementsJSUint16Array' cannot have 'JSUint16Array' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ExtendsJSInt32Array extends JSInt32Array {}
-//    ^
-// [web] `@staticInterop` class 'ExtendsJSInt32Array' cannot have 'JSInt32Array' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ImplementsJSInt32Array implements JSInt32Array {}
-//    ^
-// [web] `@staticInterop` class 'ImplementsJSInt32Array' cannot have 'JSInt32Array' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ExtendsJSUint32Array extends JSUint32Array {}
-//    ^
-// [web] `@staticInterop` class 'ExtendsJSUint32Array' cannot have 'JSUint32Array' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ImplementsJSUint32Array implements JSUint32Array {}
-//    ^
-// [web] `@staticInterop` class 'ImplementsJSUint32Array' cannot have 'JSUint32Array' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ExtendsJSFloat32Array extends JSFloat32Array {}
-//    ^
-// [web] `@staticInterop` class 'ExtendsJSFloat32Array' cannot have 'JSFloat32Array' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ImplementsJSFloat32Array implements JSFloat32Array {}
-//    ^
-// [web] `@staticInterop` class 'ImplementsJSFloat32Array' cannot have 'JSFloat32Array' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ExtendsJSFloat64Array extends JSFloat64Array {}
-//    ^
-// [web] `@staticInterop` class 'ExtendsJSFloat64Array' cannot have 'JSFloat64Array' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ImplementsJSFloat64Array implements JSFloat64Array {}
-//    ^
-// [web] `@staticInterop` class 'ImplementsJSFloat64Array' cannot have 'JSFloat64Array' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ExtendsJSNumber extends JSNumber {}
-//    ^
-// [web] `@staticInterop` class 'ExtendsJSNumber' cannot have 'JSNumber' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ImplementsJSNumber implements JSNumber {}
-//    ^
-// [web] `@staticInterop` class 'ImplementsJSNumber' cannot have 'JSNumber' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ExtendsJSBoolean extends JSBoolean {}
-//    ^
-// [web] `@staticInterop` class 'ExtendsJSBoolean' cannot have 'JSBoolean' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ImplementsJSBoolean implements JSBoolean {}
-//    ^
-// [web] `@staticInterop` class 'ImplementsJSBoolean' cannot have 'JSBoolean' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ExtendsJSString extends JSString {}
-//    ^
-// [web] `@staticInterop` class 'ExtendsJSString' cannot have 'JSString' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ImplementsJSString implements JSString {}
-//    ^
-// [web] `@staticInterop` class 'ImplementsJSString' cannot have 'JSString' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-
-@JS()
-@staticInterop
-class ExtendsJSPromise extends JSPromise {}
-//    ^
-// [web] The superclass, 'JSPromise', has no unnamed constructor that takes no arguments.
-// [web] `@staticInterop` class 'ExtendsJSPromise' cannot have 'JSPromise' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
-//                             ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.NO_GENERATIVE_CONSTRUCTORS_IN_SUPERCLASS
-
-@JS()
-@staticInterop
-class ImplementsJSPromise implements JSPromise {}
-//    ^
-// [web] `@staticInterop` class 'ImplementsJSPromise' cannot have 'JSPromise' as a supertype. `JSObject` and `JSAny` are the only valid supertypes from `dart:js_interop` for `@staticInterop` classes.
diff --git a/tests/lib_2/js/static_interop_test/supertype_test.dart b/tests/lib_2/js/static_interop_test/supertype_test.dart
deleted file mode 100644
index f620f41acc1..00000000000
--- a/tests/lib_2/js/static_interop_test/supertype_test.dart
+++ /dev/null
@@ -1,72 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that interop classes that inherit/implement other classes have the
-// appropriate static interop static errors.
-
-@JS()
-library supertype_test;
-
-import 'package:js/js.dart';
-
-// Base static interop class.
-@JS()
-@staticInterop
-class Static {}
-
-// Base non-static interop class.
-@JS()
-class NonStatic {
-  external int instanceMethod();
-}
-
-@JS()
-@staticInterop
-class NonStaticMarkedAsStatic {
-  external int instanceMethod();
-  //           ^
-  // [web] JS interop class 'NonStaticMarkedAsStatic' with `@staticInterop` annotation cannot declare instance members.
-}
-
-// Static interop classes can inherit other static interop classes in order to
-// inherit its extension methods.
-@JS()
-@staticInterop
-class StaticExtendsStatic extends Static {}
-
-// Static interop classes are disallowed from extending non-static interop
-// classes.
-@JS()
-@staticInterop
-class StaticExtendsNonStatic extends NonStatic {}
-//    ^
-// [web] JS interop class 'StaticExtendsNonStatic' has an `@staticInterop` annotation, but has supertype 'NonStatic', which does not.
-
-// Non-static interop classes are disallowed from extending static interop
-// classes.
-@JS()
-class NonStaticExtendsStatic extends Static {}
-//    ^
-// [web] Class 'NonStaticExtendsStatic' does not have an `@staticInterop` annotation, but has supertype 'Static', which does.
-
-// Static interop classes can implement each other in order to inherit extension
-// methods. They cannot implement or be implemented by non-static interop
-// classes.
-@JS()
-@staticInterop
-class StaticImplementsStatic implements Static {}
-
-@JS()
-class NonStaticImplementsStatic implements Static {}
-//    ^
-// [web] Class 'NonStaticImplementsStatic' does not have an `@staticInterop` annotation, but has supertype 'Static', which does.
-
-@JS()
-class EmptyNonStatic {}
-
-@JS()
-@staticInterop
-class StaticImplementsNonStatic implements EmptyNonStatic {}
-//    ^
-// [web] JS interop class 'StaticImplementsNonStatic' has an `@staticInterop` annotation, but has supertype 'EmptyNonStatic', which does not.
diff --git a/tests/lib_2/js/static_interop_test/supertype_transform_test.dart b/tests/lib_2/js/static_interop_test/supertype_transform_test.dart
deleted file mode 100644
index b466ca6e8fb..00000000000
--- a/tests/lib_2/js/static_interop_test/supertype_transform_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-@JS()
-library supertype_transform_test;
-
-import 'dart:html';
-
-import 'package:js/js.dart';
-
-@JS()
-@staticInterop
-class JSClass {}
-
-class Base<T> {
-  T castValue(Object o) => o as T;
-}
-
-class Derived extends Base<JSClass> {}
-
-void main() {
-  // Without erasure of types in supertypes, `T` is `JSClass` instead of
-  // `JavaScriptObject`. This will trigger a type failure in `castValue` with a
-  // `dart:html` object.
-  Derived().castValue(window);
-}
diff --git a/tests/lib_2/js/subtyping_test/subtyping_live_test.dart b/tests/lib_2/js/subtyping_test/subtyping_live_test.dart
deleted file mode 100644
index e8edd8fd522..00000000000
--- a/tests/lib_2/js/subtyping_test/subtyping_live_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart=2.9
-
-// Tests subtyping relationships after making package:js types live.
-
-@JS()
-library subtyping_live_test;
-
-import 'package:js/js.dart';
-import 'subtyping_test_util.dart';
-
-@JS()
-external dynamic get externalGetter;
-
-void main() {
-  // Call to foreign function should trigger dart2js to assume types are live.
-  externalGetter;
-  testSubtyping();
-}
diff --git a/tests/lib_2/js/subtyping_test/subtyping_not_live_test.dart b/tests/lib_2/js/subtyping_test/subtyping_not_live_test.dart
deleted file mode 100644
index b52ba22b601..00000000000
--- a/tests/lib_2/js/subtyping_test/subtyping_not_live_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart=2.9
-
-// Tests subtyping relationships without making package:js types live.
-
-import 'package:js/js.dart';
-import 'subtyping_test_util.dart';
-
-void main() {
-  testSubtyping();
-}
diff --git a/tests/lib_2/js/subtyping_test/subtyping_test_util.dart b/tests/lib_2/js/subtyping_test/subtyping_test_util.dart
deleted file mode 100644
index 368362a531a..00000000000
--- a/tests/lib_2/js/subtyping_test/subtyping_test_util.dart
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart=2.9
-
-// Tests subtyping relationships between JS and anonymous classes.
-
-@JS()
-library subtyping_test_util;
-
-import 'package:js/js.dart';
-import 'package:expect/minitest.dart';
-
-@JS()
-class JSClassA {}
-
-@JS()
-class JSClassB {}
-
-@JS()
-@anonymous
-class AnonymousClassA {}
-
-@JS()
-@anonymous
-class AnonymousClassB {}
-
-class DartClass {}
-
-JSClassA returnJS() => throw '';
-
-AnonymousClassA returnAnon() => throw '';
-
-DartClass returnDartClass() => throw '';
-
-// Avoid static type optimization by running all tests using this.
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-void testSubtyping() {
-  // Checks subtyping with the same type.
-  expect(returnJS is JSClassA Function(), true);
-  expect(returnAnon is AnonymousClassA Function(), true);
-
-  // Subtyping between JS and anonymous classes.
-  expect(returnJS is AnonymousClassA Function(), true);
-  expect(returnAnon is JSClassA Function(), true);
-
-  // Subtyping between same type of package:js classes.
-  expect(returnJS is JSClassB Function(), true);
-  expect(returnAnon is AnonymousClassB Function(), true);
-
-  // No subtyping between JS/anonymous classes and Dart classes.
-  expect(returnJS is DartClass Function(), false);
-  expect(returnDartClass is JSClassA Function(), false);
-  expect(returnAnon is DartClass Function(), false);
-  expect(returnDartClass is AnonymousClassA Function(), false);
-
-  // Repeat the checks but using `confuse` to coerce runtime checks instead of
-  // compile-time like above.
-  expect(confuse(returnJS) is JSClassA Function(), true);
-  expect(confuse(returnAnon) is AnonymousClassA Function(), true);
-
-  expect(confuse(returnJS) is AnonymousClassA Function(), true);
-  expect(confuse(returnAnon) is JSClassA Function(), true);
-
-  expect(confuse(returnJS) is JSClassB Function(), true);
-  expect(confuse(returnAnon) is AnonymousClassB Function(), true);
-
-  expect(confuse(returnJS) is DartClass Function(), false);
-  expect(confuse(returnDartClass) is JSClassA Function(), false);
-  expect(confuse(returnAnon) is DartClass Function(), false);
-  expect(confuse(returnDartClass) is AnonymousClassA Function(), false);
-}
diff --git a/tests/lib_2/js/trust_types_annotation_test.dart b/tests/lib_2/js/trust_types_annotation_test.dart
deleted file mode 100644
index 7248ad5a863..00000000000
--- a/tests/lib_2/js/trust_types_annotation_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:js/js.dart';
-
-@JS()
-@trustTypes
-class Incorrect {}
-//    ^
-// [web] JS interop class 'Incorrect' has an `@trustTypes` annotation, but no `@staticInterop` annotation.
diff --git a/tests/lib_2/js/trust_types_test.dart b/tests/lib_2/js/trust_types_test.dart
deleted file mode 100644
index 2cbfb3791ec..00000000000
--- a/tests/lib_2/js/trust_types_test.dart
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test that the [trustTypes] annotation has the same semantics as the older
-// style of js interop.
-
-import 'package:js/js.dart';
-import 'package:expect/expect.dart';
-
-class NonExistent {}
-
-@JS()
-@staticInterop
-@trustTypes
-class TrustMe {
-  external factory TrustMe();
-}
-
-extension TrustMeExtension on TrustMe {
-  external List<NonExistent> get foos;
-  external List<NonExistent> callFoos();
-  external List<NonExistent> callFoos1(int ignored);
-  external List<NonExistent> callFoos2(int ignored1, int ignored2);
-  external List<NonExistent> callFoos3(
-      int ignored1, int ignored2, int ignored3);
-  external List<NonExistent> callFoos4(
-      int ignored1, int ignored2, int ignored3, int ignored4);
-  external List<NonExistent> callFoos5(
-      int ignored1, int ignored2, int ignored3, int ignored4, int ignored5);
-  external String get fooPrimitive;
-}
-
-@JS()
-external void eval(String code);
-
-void main() {
-  eval(r'''
-      TrustMe = function TrustMe() {
-        this.foos = 'not a list 1';
-        this.fooPrimitive = 5;
-        this.callFoos = function() {
-          return 'not a list 2';
-        }
-        this.callFoos1 = function(a) {
-          return 'not a list 3';
-        }
-        this.callFoos2 = function(a, b) {
-          return 'not a list 4';
-        }
-        this.callFoos3 = function(a, b, c) {
-          return 'not a list 5';
-        }
-        this.callFoos4 = function(a, b, c, d) {
-          return 'not a list 6';
-        }
-        this.callFoos5 = function(a, b, c, d, e) {
-          return 'not a list 7';
-        }
-      }
-      ''');
-  final trusted = TrustMe();
-  Expect.equals('not a list 1', trusted.foos.toString());
-  Expect.equals('not a list 2', trusted.callFoos().toString());
-  Expect.equals('not a list 3', trusted.callFoos1(1).toString());
-  Expect.equals('not a list 4', trusted.callFoos2(1, 1).toString());
-  Expect.equals('not a list 5', trusted.callFoos3(1, 1, 1).toString());
-  Expect.equals('not a list 6', trusted.callFoos4(1, 1, 1, 1).toString());
-
-  final falseList = trusted.callFoos5(1, 1, 1, 1, 1);
-  Expect.equals('not a list 7', falseList.toString());
-  Expect.throws(() => falseList.removeAt(0));
-
-  final falseString = trusted.fooPrimitive;
-  Expect.equals(5, falseString);
-  Expect.throws(() => falseString.codeUnitAt(0));
-}
diff --git a/tests/lib_2/js/type_parameter_lowering_test.dart b/tests/lib_2/js/type_parameter_lowering_test.dart
deleted file mode 100644
index 35e1f835601..00000000000
--- a/tests/lib_2/js/type_parameter_lowering_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Check that the compilers lower interop calls that use type parameters do not
-// pass the type parameter.
-
-@JS()
-library type_parameter_lowering_test;
-
-import 'package:js/js.dart';
-
-@JS()
-external void eval(String code);
-
-@JS()
-external void topLevelMethod<T extends int>(T t);
-
-@JS()
-class TypeParam<T extends int> {
-  external TypeParam(T t);
-  external static void staticMethod<U extends int>(U u);
-  external static void staticMethodShadow<T extends int>(T t);
-  external void genericMethod<U extends int>(U u);
-  external void genericMethodShadow<T extends int>(T t);
-}
-
-void main() {
-  eval('''
-    const checkValue = function(value) {
-      if (value != 0) {
-        throw new Error(`Expected value to be 0, but got \${value}.`);
-      }
-    }
-    globalThis.topLevelMethod = checkValue;
-    globalThis.TypeParam = function (value) {
-      checkValue(value);
-      this.genericMethod = checkValue;
-      this.genericMethodShadow = checkValue;
-    }
-    globalThis.TypeParam.staticMethod = checkValue;
-    globalThis.TypeParam.staticMethodShadow = checkValue;
-  ''');
-  topLevelMethod(0);
-  final typeParam = TypeParam(0);
-  TypeParam.staticMethod(0);
-  TypeParam.staticMethodShadow(0);
-  typeParam.genericMethod(0);
-  typeParam.genericMethodShadow(0);
-}
diff --git a/tests/lib_2/lib_2.status b/tests/lib_2/lib_2.status
deleted file mode 100644
index 05c235da2ca..00000000000
--- a/tests/lib_2/lib_2.status
+++ /dev/null
@@ -1,165 +0,0 @@
-# Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-html/cross_frame_test: Skip # Issue 32039, test reloads itself (not by design - investigate)
-wasm/*: Skip # dart:_wasm is currently behind a Dart SDK build flag.
-
-[ $arch == simarm ]
-convert/utf85_test: Skip # Pass, Slow Issue 12644.
-
-[ $compiler == dart2wasm ]
-js/static_interop_test/external_static_member_lowerings_test: SkipByDesign # Tests @trustTypes, which is unsupported on dart2wasm. TODO(srujzs): Refactor that code out.
-js/static_interop_test/external_static_member_lowerings_with_namespaces_test: SkipByDesign # Tests @trustTypes, which is unsupported on dart2wasm. TODO(srujzs): Refactor that code out.
-
-[ $mode == product ]
-developer/timeline_test: Skip # Not supported
-isolate/issue_24243_parent_isolate_test: Skip # Requires checked mode
-
-[ $runtime == d8 ]
-js/export/static_interop_mock/proto_test: SkipByDesign # Uses dart:html.
-js/js_util/javascriptobject_extensions_test: SkipByDesign # Uses dart:html.
-js/static_interop_test/constants_test: SkipByDesign # Uses dart:html.
-js/static_interop_test/futurevaluetype_test: SkipByDesign # Uses dart:html.
-js/static_interop_test/supertype_transform_test: SkipByDesign # Uses dart:html.
-
-[ $runtime == dart_precompiled ]
-isolate/package_config_getter_test: SkipByDesign # AOT mode doesn't preserve package structure.
-
-[ $runtime == ff ]
-convert/streamed_conversion_utf8_decode_test: Slow, Pass # Issue 12029
-mirrors/mirrors_reader_test: Slow, Pass # Issue 16589
-
-[ $runtime == ie11 ]
-html/request_animation_frame_test: Skip # Times out. Issue 22167
-html/transition_event_test: Skip # Times out. Issue 22167
-
-[ $runtime == safari ]
-html/indexeddb_1_test/functional: Skip # Times out. Issue 21433
-html/indexeddb_3_test: Skip # Times out 1 out of 10.
-html/worker_api_test: Skip # Issue 13221
-
-[ $runtime != vm ]
-isolate/spawn_uri__package_uri__test: SkipByDesign # This test uses Isolate.spawnUri and only works in JIT mode.
-
-[ $system == windows ]
-html/xhr_test/xhr: Skip # Times out.  Issue 21527
-
-[ $csp ]
-html/js_interop_constructor_name/*: SkipByDesign # Issue 42085.
-isolate/deferred_in_isolate2_test: Skip # Issue 16898. Deferred loading does not work from an isolate in CSP-mode
-js/extends_test/extends_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
-js/extends_test/extends_with_es6_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
-js/instanceof_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
-js/is_check_and_as_cast_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
-js/js_util/async_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
-js/js_util/implicit_downcast_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
-js/js_util/javascriptobject_extensions_test.dart: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
-js/js_util/jsify_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
-js/js_util/operator_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
-js/js_util/promise_reject_null_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
-js/js_util/properties_implicit_checks_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
-js/js_util/properties_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
-js/method_call_on_object_test: SkipByDesign # Issue 42085.
-js/mock_test/*: SkipByDesign # Issue 42085.
-js/parameters_test: SkipByDesign # Issue 42085.
-js/static_interop_test/external_extension_members_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
-js/static_interop_test/external_static_member_lowerings_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
-js/static_interop_test/external_static_member_lowerings_trusttypes_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
-js/static_interop_test/external_static_member_lowerings_with_namespaces_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
-js/trust_types_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
-js/type_parameter_lowering_test: SkipByDesign # Issue 42085. CSP policy disallows injected JS code
-
-[ $simulator ]
-convert/utf85_test: Skip # Pass, Slow Issue 20111.
-
-[ $compiler != dart2js && $compiler != ddc ]
-web/*: SkipByDesign
-
-[ $runtime == chrome && $system == macos ]
-convert/streamed_conversion_utf8_encode_test: SkipSlow # Times out. Issue 22050
-html/canvasrendering/arc_test: Skip # Issue 42048
-html/canvasrendering/draw_image_canvas_element_test: Skip # Issue 42048
-html/canvasrendering/fill_text_test: Skip # Issue 42048
-html/canvasrendering/image_element_test: Skip # Issue 42048
-html/canvasrendering/pixel_manipulation_test: Skip # Issue 42048
-html/request_animation_frame_test: Skip # Times out. Issue 22167
-html/transition_event_test: Skip # Times out. Issue 22167
-
-[ $runtime != dart_precompiled && ($compiler != dartk || $runtime != vm) ]
-isolate/vm_rehash_test: SkipByDesign
-
-[ $arch != x64 || $runtime != vm ]
-isolate/int32_length_overflow_test: SkipSlow
-
-[ $compiler != dartk || $runtime != vm ]
-isolate/package_config_test: SkipByDesign # Uses Isolate.packageConfig
-isolate/package_resolve_test: SkipByDesign # Uses Isolate.resolvePackageUri
-isolate/scenarios/*: SkipByDesign # Use automatic package resolution, spawnFunction and .dart URIs.
-isolate/spawn_uri_fail_test: SkipByDesign # Uses dart:io.
-
-[ $runtime == chrome || $runtime == ff ]
-async/slow_consumer2_test: SkipSlow # Times out. Issue 22050
-async/stream_timeout_test: SkipSlow # Times out. Issue 22050
-
-# It makes no sense to run any test that uses spawnURI under the simulator
-# as that would involve running CFE (the front end) in simulator mode
-# to compile the URI file specified in spawnURI code.
-# These Isolate tests that use spawnURI are hence skipped on purpose.
-[ $runtime == dart_precompiled || $runtime == vm && $simulator ]
-isolate/count_test: Skip # Isolate.spawnUri
-isolate/cross_isolate_message_test: Skip # Isolate.spawnUri
-isolate/deferred_in_isolate2_test: Skip # Isolate.spawnUri
-isolate/deferred_in_isolate_test: Skip # Isolate.spawnUri
-isolate/error_at_spawnuri_test: Skip # Isolate.spawnUri
-isolate/error_exit_at_spawnuri_test: Skip # Isolate.spawnUri
-isolate/exit_at_spawnuri_test: Skip # Isolate.spawnUri
-isolate/illegal_msg_function_test: Skip # Isolate.spawnUri
-isolate/illegal_msg_mirror_test: Skip # Isolate.spawnUri
-isolate/isolate_complex_messages_test: Skip # Isolate.spawnUri
-isolate/issue_21398_parent_isolate1_test: Skip # Isolate.spawnUri
-isolate/issue_21398_parent_isolate_test: Skip # Isolate.spawnUri
-isolate/issue_24243_parent_isolate_test: Skip # Isolate.spawnUri
-isolate/issue_6610_test: Skip # Isolate.spawnUri
-isolate/mandel_isolate_test: Skip # Isolate.spawnUri
-isolate/message2_test: Skip # Isolate.spawnUri
-isolate/message_test: Skip # Isolate.spawnUri
-isolate/mint_maker_test: Skip # Isolate.spawnUri
-isolate/nested_spawn2_test: Skip # Isolate.spawnUri
-isolate/nested_spawn_test: Skip # Isolate.spawnUri
-isolate/package_config_test: Skip # Isolate.spawnUri
-isolate/raw_port_test: Skip # Isolate.spawnUri
-isolate/request_reply_test: Skip # Isolate.spawnUri
-isolate/scenarios/automatic_resolution_spec/package_resolve_test: Skip # Isolate.spawnUri
-isolate/scenarios/package_relative_spec/package_relative_spec_test: Skip # Isolate.spawnUri
-isolate/scenarios/short_package/short_package_test: Skip # Isolate.spawnUri
-isolate/spawn_function_custom_class_test: Skip # Isolate.spawnUri
-isolate/spawn_function_test: Skip # Isolate.spawnUri
-isolate/spawn_uri_exported_main_test: Skip # Isolate.spawnUri
-isolate/spawn_uri_missing_from_isolate_test: Skip # Isolate.spawnUri
-isolate/spawn_uri_missing_test: Skip # Isolate.spawnUri
-isolate/spawn_uri_multi_test: Skip # Isolate.spawnUri
-isolate/spawn_uri_nested_vm_test: Skip # Isolate.spawnUri
-isolate/spawn_uri_test: Skip # Isolate.spawnUri
-isolate/spawn_uri_vm_test: Skip # Isolate.spawnUri
-isolate/stacktrace_message_test: Skip # Isolate.spawnUri
-isolate/static_function_test: Skip # Isolate.spawnUri
-isolate/unresolved_ports_test: Skip # Isolate.spawnUri
-
-[ $hot_reload || $hot_reload_rollback ]
-convert/chunked_conversion_utf88_test: SkipSlow
-convert/utf85_test: SkipSlow
-isolate/deferred_in_isolate2_test: Crash # Requires deferred libraries
-isolate/deferred_in_isolate_test: Crash # Requires deferred libraries
-isolate/issue_21398_parent_isolate2_test: Crash # Requires deferred libraries
-isolate/spawn_uri_nested_vm_test: Crash # Issue 28192
-mirrors/closurization_equivalence_test: SkipByDesign # Method equality
-mirrors/deferred_constraints_constants_test: Crash # Requires deferred libraries
-mirrors/deferred_mirrors_metadata_test: Crash # Deferred loading
-mirrors/deferred_mirrors_metatarget_test: Crash # Deferred loading
-mirrors/deferred_mirrors_update_test: Crash # Deferred loading
-mirrors/library_enumeration_deferred_loading_test: Crash # Deferred loading
-mirrors/library_import_deferred_loading_test: Crash # Deferred loading
-mirrors/library_imports_deferred_test: Crash # Deferred loading
-mirrors/load_library_test: Crash # Deferred loading
-mirrors/typedef_deferred_library_test: Crash # Deferred loading
-typed_data/zeroed_allocation_test: SkipSlow
diff --git a/tests/lib_2/lib_2_app_jit.status b/tests/lib_2/lib_2_app_jit.status
deleted file mode 100644
index cb39a570dc4..00000000000
--- a/tests/lib_2/lib_2_app_jit.status
+++ /dev/null
@@ -1,6 +0,0 @@
-# Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-
-[ $compiler == app_jitk ]
-mirrors/*: Skip # Issue 27929: Triage
diff --git a/tests/lib_2/lib_2_dart2js.status b/tests/lib_2/lib_2_dart2js.status
deleted file mode 100644
index 78fbe2786fc..00000000000
--- a/tests/lib_2/lib_2_dart2js.status
+++ /dev/null
@@ -1,103 +0,0 @@
-# Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-
-[ $compiler == dart2js ]
-convert/chunked_conversion_utf88_test: Slow, Pass
-convert/utf85_test: Slow, Pass
-developer/metrics_num_test: Skip # Because of an int / double type test.
-developer/timeline_test: Skip # Not supported
-html/async_test: SkipByDesign
-html/custom/document_register_basic_test: Slow, Pass
-html/custom/document_register_type_extensions_test/construction: Slow, Pass
-html/custom/document_register_type_extensions_test/registration: Slow, Pass
-html/custom/entered_left_view/shadow_dom_test: Slow, Pass
-html/custom_elements_test: Slow, Pass # Issue 26789
-html/interactive_geolocation_test: Skip # Requires allowing geo location.
-html/isolates_test: SkipByDesign
-html/worker_api_test: SkipByDesign
-html/wrapping_collections_test: SkipByDesign # Testing an issue that is only relevant to Dartium
-html/xhr_test: Slow, Pass
-isolate/*: SkipByDesign # No support for dart:isolate in dart4web (http://dartbug.com/30538)
-mirrors/*: SkipByDesign # Mirrors not supported on web in Dart 2.0.
-wasm/*: SkipByDesign # dart:_wasm not currently supported on web.
-
-[ $compiler != dart2js ]
-async/dart2js_uncaught_error_test: Skip # JS-integration only test
-
-[ $builder_tag == dart2js_production && $compiler == dart2js ]
-js/js_util/properties_implicit_checks_test: SkipByDesign # No implicit checks in production mode
-
-[ $compiler == dart2js && $runtime == chrome ]
-async/slow_consumer2_test: SkipSlow # Times out. Issue 22050
-convert/streamed_conversion_json_utf8_decode_test: SkipSlow # Times out. Issue 22050
-convert/streamed_conversion_json_utf8_encode_test: SkipSlow # Times out. Issue 22050
-convert/streamed_conversion_utf8_decode_test: SkipSlow # Times out. Issue 22050
-html/canvasrendering/draw_image_video_element_test: SkipByDesign # Issue #53985: video is not played on Chrome inactive tabs
-html/request_animation_frame_test: SkipByDesign # Issue #53985: requestAnimationFrame is not executed on Chrome inactive tabs
-html/transition_event_test: SkipByDesign # Issue #53985: css transitions are not executed on Chrome inactive tabs
-
-[ $compiler == dart2js && $runtime == chromeOnAndroid ]
-html/input_element_datetime_test: Slow, Pass # TODO(dart2js-team): Please triage this failure.
-
-[ $compiler == dart2js && $runtime == d8 ]
-html/*: SkipByDesign # Browser test
-
-[ $compiler == dart2js && $runtime == ff ]
-async/slow_consumer2_test: SkipSlow # Times out. Issue 22050
-convert/streamed_conversion_json_utf8_decode_test: SkipSlow # Times out. Issue 22050
-convert/streamed_conversion_json_utf8_encode_test: SkipSlow # Times out. Issue 22050
-convert/streamed_conversion_utf8_decode_test: SkipSlow # Times out. Issue 22050
-convert/utf85_test: Slow, Pass
-html/callback_list_test: SkipByDesign # FileSystem not supported in FireFox.
-html/custom/attribute_changed_callback_test: Skip # Times out
-html/custom/created_callback_test: Skip # Times out
-html/custom/document_register_basic_test: Skip # Times out, or unittest times out
-html/dart_object_local_storage_test: Skip # sessionStorage NS_ERROR_DOM_NOT_SUPPORTED_ERR
-html/file_sample_test: Skip # FileSystem not supported on FireFox.
-html/fileapi_supported_test: Skip # FileSystem not supported on FireFox.
-html/fileapi_supported_throws_test: Skip # FileSystem not supported on FireFox.
-html/history_test: Skip # Issue 22050
-html/mediadevices_test: SkipByDesign # Not supported on FF, likely requires user-interaction that causes timeout
-html/request_animation_frame_test: Skip # Async test hangs.
-
-[ $compiler == dart2js && $runtime == safari ]
-html/audiocontext_test: Skip # evades flake detection https://github.com/dart-lang/sdk/issues/50718
-html/callback_list_test: SkipByDesign # FileSystem not supported in Safari.
-html/file_sample_test: Skip # FileSystem not supported on Safari.
-html/fileapi_supported_throws_test: Skip # FileSystem not supported on Safari
-html/input_element_date_test: Skip # evades flake detection https://github.com/dart-lang/sdk/issues/50718
-html/input_element_datetime_test: Skip # evades flake detection https://github.com/dart-lang/sdk/issues/50718
-html/input_element_time_test: Skip # evades flake detection https://github.com/dart-lang/sdk/issues/50718
-html/interactive_media_test: SkipSlow
-html/mediasource_test: Skip # evades flake detection https://github.com/dart-lang/sdk/issues/50718
-js/js_util/bigint_test: Skip # evades flake detection https://github.com/dart-lang/sdk/issues/50718
-
-[ $compiler == dart2js && $checked ]
-convert/utf85_test: Slow, Pass # Issue 12029.
-html/js_function_getter_trust_types/function_test: Skip # --trust-type-annotations incompatible with --checked
-
-[ $compiler == dart2js && $csp && ($runtime == chrome || $runtime == chromeOnAndroid || $runtime == ff || $runtime == safari) ]
-html/event_customevent_test: SkipByDesign
-html/js_array_test: SkipByDesign
-html/js_dart_to_string_test: SkipByDesign
-html/js_function_getter_test: SkipByDesign
-html/js_function_getter_trust_types/function_test: SkipByDesign
-html/js_interop_1_test: SkipByDesign
-html/js_typed_interop_bind_this_test: SkipByDesign
-html/js_typed_interop_callable_object_test: SkipByDesign
-html/js_typed_interop_default_arg_test: SkipByDesign
-html/js_typed_interop_test: SkipByDesign
-html/js_typed_interop_type1_test: SkipByDesign
-html/js_typed_interop_type3_test: SkipByDesign
-html/js_typed_interop_type_test: SkipByDesign
-html/js_typed_interop_window_property_test: SkipByDesign
-html/js_util_test: SkipByDesign
-html/postmessage_structured_test: SkipByDesign
-js/js_util/dartify_test: SkipByDesign
-
-[ $compiler == dart2js && ($runtime == chrome || $runtime == ff) ]
-async/slow_consumer2_test: SkipSlow # Times out. Issue 22050
-convert/streamed_conversion_json_utf8_decode_test: SkipSlow # Times out. Issue 22050
-convert/streamed_conversion_json_utf8_encode_test: SkipSlow # Times out. Issue 22050
-convert/streamed_conversion_utf8_decode_test: SkipSlow # Times out. Issue 22050
diff --git a/tests/lib_2/lib_2_dartdevc.status b/tests/lib_2/lib_2_dartdevc.status
deleted file mode 100644
index 2ea7dd2b71d..00000000000
--- a/tests/lib_2/lib_2_dartdevc.status
+++ /dev/null
@@ -1,45 +0,0 @@
-# Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-
-[ $compiler == ddc ]
-convert/chunked_conversion_utf88_test: Slow, Pass
-convert/json_utf8_chunk_test: Slow, Pass
-convert/streamed_conversion_utf8_decode_test: Slow, Pass # Issue 29922
-convert/utf85_test: Slow, Pass
-developer/metrics_num_test: Skip # Because of an int / double type test.
-html/callback_list_test: Skip # Test requires user interaction to accept permissions.
-html/custom/attribute_changed_callback_test: Skip # Issue 31577
-html/custom/created_callback_test: Skip # Issue 31577
-html/custom/document_register_basic_test: Skip # Issue 31577
-html/custom/document_register_template_test: Skip # Issue 31577
-html/custom/document_register_type_extensions_test: Skip # Issue 31577
-html/custom/element_upgrade_test: Skip # Issue 31577
-html/custom/entered_left_view/.*: Skip # Issue 31577
-html/custom_element_method_clash_test: Skip # Issue 29922
-html/custom_element_name_clash_test: Skip # Issue 29922
-html/custom_elements_23127_test: Skip # Issue 29922
-html/custom_elements_test: Skip # Issue 29922
-html/fileapi_*: SkipByDesign # Issue 53864
-html/interactive_geolocation_test: Skip # Requires allowing geo location.
-isolate/*: SkipByDesign # No support for dart:isolate in dart4web (http://dartbug.com/30538)
-js/js_util/js_prefix_test: SkipByDesign # JS$ prefix not implemented on ddc.
-mirrors/*: SkipByDesign # Mirrors not supported on web in Dart 2.0.
-
-[ $compiler == ddc && $runtime == chrome ]
-html/canvasrendering/draw_image_video_element_test: SkipByDesign # Issue #53985: video is not played on Chrome inactive tabs
-html/js_dispatch_property_test: Skip # Timeout Issue 31030
-html/request_animation_frame_test: SkipByDesign # Issue #53985: requestAnimationFrame is not executed on Chrome inactive tabs
-html/transition_event_test: SkipByDesign # Issue #53985: css transitions are not executed on Chrome inactive tabs
-
-[ $compiler == ddc && $runtime == ff ]
-html/mediadevices_test: SkipByDesign # Not supported on FF, likely requires user-interaction that causes timeout
-
-[ $compiler == ddc && $system == linux ]
-html/interactive_geolocation_test: Skip # Requires allowing geo location.
-
-[ $compiler == ddc && $system == macos ]
-html/interactive_media_test: Skip # Requires interactive camera, microphone permissions.
-
-[ $compiler == ddc && $system == windows ]
-html/xhr_test: Skip # Times out. Issue 21527
diff --git a/tests/lib_2/lib_2_kernel.status b/tests/lib_2/lib_2_kernel.status
deleted file mode 100644
index 050cea871ba..00000000000
--- a/tests/lib_2/lib_2_kernel.status
+++ /dev/null
@@ -1,74 +0,0 @@
-# Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-# Sections in this file should contain "$compiler == dartk" or
-# "$compiler == dartkp".
-
-isolate/ping_pause_test: Skip # Issue https://dartbug.com/37787
-
-[ $compiler == fasta ]
-html/*: Skip # TODO(ahe): Make dart:html available.
-js/*: Skip # TODO(ahe): Make dart:js available.
-
-[ $arch == ia32 && $mode == debug ]
-*: Pass, Slow # The CFE is not run from AppJit snapshot, JIT warmup in debug mode very slow
-
-[ $arch == x64 && $compiler == dartk && $mode == debug && $runtime == vm ]
-mirrors/invocation_fuzz_test: Skip # Because it times out, issue 29439.
-
-[ $arch == x64 && ($hot_reload || $hot_reload_rollback) ]
-convert/base64_test/01: Crash # http://dartbug.com/35948
-
-[ $builder_tag == optimization_counter_threshold && $compiler == dartk ]
-mirrors/invocation_fuzz_test/emptyarray: Crash # Flaky on vm-kernel-optcounter-threshold-linux-release-x64, bug #31838
-mirrors/invocation_fuzz_test/false: Crash # Flaky on vm-kernel-optcounter-threshold-linux-release-x64, bug #31838
-mirrors/invocation_fuzz_test/none: Crash # Flaky on vm-kernel-optcounter-threshold-linux-release-x64, bug #31838
-mirrors/invocation_fuzz_test/smi: Crash # Crashes on opt counter builder (#31838)
-mirrors/invocation_fuzz_test/string: Crash # Flaky on vm-kernel-optcounter-threshold-linux-release-x64, bug #31838
-
-[ $compiler == app_jitk && ($mode == product || $mode == release) ]
-isolate/spawn_uri_nested_vm_test: Skip # Timeout, Issue 33385
-
-[ $compiler == dartk && $mode == debug && $runtime == vm ]
-mirrors/other_declarations_location_test: Crash # Issue 33325 (assertion error, TypeParameter not having position).
-
-[ $compiler == dartk && $mode == debug && $hot_reload_rollback ]
-isolate/message3_test/constList_identical: Skip # Timeout
-
-# ===== dartk + vm status lines =====
-[ $compiler == dartk && $runtime == vm ]
-html/*: SkipByDesign # dart:html not supported on VM.
-isolate/deferred_in_isolate2_test: Skip # Times out. Deferred loading kernel issue 28335.
-isolate/deferred_in_isolate_test: Skip # Times out. Deferred loading kernel issue 28335.
-isolate/issue_21398_parent_isolate2_test/01: Skip # Times out. Deferred loading kernel issue 28335.
-isolate/static_function_test: Skip # Times out. Issue 31855. CompileTimeError. Issue 31402
-mirrors/invocation_fuzz_test: Crash
-mirrors/metadata_allowed_values_test/16: Skip # Flaky, crashes.
-
-[ $compiler == dartk && $hot_reload_rollback ]
-isolate/illegal_msg_function_test: Skip # Timeout
-isolate/pause_test: Skip # Timeout
-
-[ $compiler == dartk && ($hot_reload || $hot_reload_rollback) ]
-isolate/message4_test: Crash # Timeout and sporadic crash (issue 33824)
-mirrors/dynamic_load_test: Skip # Reload has an effect similar to deleting the dynamically loaded library
-mirrors/immutable_collections_test: Pass, Slow
-mirrors/mirrors_reader_test: Pass, Slow
-
-[ $compiler == dartkp && $mode == debug && $runtime == dart_precompiled ]
-isolate/static_function_test: Skip # Flaky (https://github.com/dart-lang/sdk/issues/30063).
-
-# ===== dartkp + dart_precompiled status lines =====
-[ $compiler == dartkp && $runtime == dart_precompiled ]
-html/*: SkipByDesign # dart:html not supported on VM.
-isolate/deferred_in_isolate2_test: Skip # Times out. Deferred loading kernel issue 28335.
-isolate/deferred_in_isolate_test: Skip # Times out. Deferred loading kernel issue 28335.
-isolate/issue_21398_parent_isolate2_test/01: Skip # Times out. Deferred loading kernel issue 28335.
-mirrors/*: SkipByDesign # Mirrors are not supported in AOT mode.
-
-[ $compiler == app_jitk || $compiler == dartk || $compiler == dartkp ]
-html/*: SkipByDesign
-js/*: SkipByDesign
-
-[ $hot_reload || $hot_reload_rollback ]
-isolate/issue_6610_test: Skip # Sources are looked up on every reload request.
diff --git a/tests/lib_2/lib_2_precompiled.status b/tests/lib_2/lib_2_precompiled.status
deleted file mode 100644
index 8ed3c7d6556..00000000000
--- a/tests/lib_2/lib_2_precompiled.status
+++ /dev/null
@@ -1,3 +0,0 @@
-# Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
diff --git a/tests/lib_2/lib_2_vm.status b/tests/lib_2/lib_2_vm.status
deleted file mode 100644
index f99cadd309e..00000000000
--- a/tests/lib_2/lib_2_vm.status
+++ /dev/null
@@ -1,72 +0,0 @@
-# Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-
-[ $runtime != vm ]
-isolate/native_wrapper_message_test: Skip # A VM specific test.
-
-[ $compiler != app_jitk && $compiler != dartk && $runtime == vm ]
-async/future_or_only_in_async_test/00: MissingCompileTimeError
-convert/streamed_conversion_json_utf8_decode_test: Pass, Slow # Infrequent timeouts.
-html/*: SkipByDesign # dart:html not supported on VM.
-js/*: SkipByDesign
-mirrors/deferred_type_test: CompileTimeError
-mirrors/generic_bounded_by_type_parameter_test/02: MissingCompileTimeError
-mirrors/generic_bounded_test/01: MissingCompileTimeError
-mirrors/generic_bounded_test/02: MissingCompileTimeError
-mirrors/generic_interface_test/01: MissingCompileTimeError
-mirrors/generics_test/01: MissingCompileTimeError
-mirrors/initializing_formals_test/01: Fail # initializing formals are implicitly final as of Dart 1.21
-mirrors/metadata_nested_constructor_call_test/none: CompileTimeError
-mirrors/redirecting_factory_different_type_test/01: MissingCompileTimeError
-mirrors/redirecting_factory_test/01: RuntimeError
-mirrors/redirecting_factory_test/none: RuntimeError
-
-[ $compiler != app_jitk && $compiler != dartk && $runtime == vm && !$checked ]
-mirrors/inference_and_no_such_method_test: RuntimeError
-
-[ $runtime == vm && $system == fuchsia ]
-async/first_regression_test: RuntimeError
-async/future_timeout_test: RuntimeError
-async/schedule_microtask2_test: RuntimeError
-async/schedule_microtask3_test: RuntimeError
-async/schedule_microtask5_test: RuntimeError
-async/stream_controller_async_test: RuntimeError
-async/stream_first_where_test: RuntimeError
-async/stream_iterator_test: RuntimeError
-async/stream_join_test: RuntimeError
-async/stream_last_where_test: RuntimeError
-async/stream_periodic2_test: RuntimeError
-async/stream_periodic3_test: RuntimeError
-async/stream_periodic4_test: RuntimeError
-async/stream_periodic5_test: RuntimeError
-async/stream_periodic6_test: RuntimeError
-async/stream_periodic_test: RuntimeError
-async/stream_single_test: RuntimeError
-async/stream_single_to_multi_subscriber_test: RuntimeError
-async/stream_state_nonzero_timer_test: RuntimeError
-async/stream_state_test: RuntimeError
-async/stream_subscription_as_future_test: RuntimeError
-async/stream_subscription_cancel_test: RuntimeError
-async/stream_transform_test: RuntimeError
-async/stream_transformation_broadcast_test: RuntimeError
-async/timer_cancel1_test: RuntimeError
-async/timer_cancel2_test: RuntimeError
-async/timer_cancel_test: RuntimeError
-async/timer_isActive_test: RuntimeError
-async/timer_repeat_test: RuntimeError
-async/timer_test: RuntimeError
-convert/json_lib_test: RuntimeError
-math/point_test: RuntimeError
-math/rectangle_test: RuntimeError
-mirrors/invocation_fuzz_test: Crash
-mirrors/library_uri_io_test: RuntimeError
-mirrors/library_uri_package_test: RuntimeError
-
-[ $hot_reload || $hot_reload_rollback ]
-isolate/int32_length_overflow_test: SkipSlow # Iterates over Uint8List(1 << 30).
-
-[ $hot_reload || $hot_reload_rollback || $simulator ]
-convert/chunked_conversion_utf88_test: SkipSlow
-convert/streamed_conversion_json_utf8_decode_test: SkipSlow
-convert/utf85_test: SkipSlow
diff --git a/tests/lib_2/math/call_cmath_box_failure_path_test.dart b/tests/lib_2/math/call_cmath_box_failure_path_test.dart
deleted file mode 100644
index 911ee237e34..00000000000
--- a/tests/lib_2/math/call_cmath_box_failure_path_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--optimization-counter-threshold=-1 --new_gen_semi_max_size=2
-
-// TODO(rnystrom): This looks like a VM-specific test. Move out of
-// tests/language and into somewhere more appropriate.
-
-import 'dart:math';
-
-main() {
-  // 2MB / 16 bytes = 125000 allocations
-
-  for (var i = 0; i < 500000; i++) {
-    sin(i);
-  }
-
-  for (var i = 0; i < 500000; i++) {
-    cos(i);
-  }
-
-  for (var i = 0; i < 500000; i++) {
-    i.toDouble().truncateToDouble();
-  }
-}
diff --git a/tests/lib_2/math/coin_test.dart b/tests/lib_2/math/coin_test.dart
deleted file mode 100644
index a9dcd5da408..00000000000
--- a/tests/lib_2/math/coin_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that a coin toss with Random.nextBool() is fair.
-
-import "package:expect/expect.dart";
-import 'dart:math';
-
-main() {
-  var seed = new Random().nextInt(1 << 16);
-  print("coin_test seed: $seed");
-  var rnd = new Random(seed);
-  var heads = 0;
-  var tails = 0;
-  for (var i = 0; i < 10000; i++) {
-    if (rnd.nextBool()) {
-      heads++;
-    } else {
-      tails++;
-    }
-  }
-  print("Heads: $heads\n"
-      "Tails: $tails\n"
-      "Ratio: ${heads/tails}\n");
-  Expect.approxEquals(1.0, heads / tails, 0.1);
-
-  heads = 0;
-  tails = 0;
-  for (var i = 0; i < 10000; i++) {
-    rnd = new Random(i);
-    if (rnd.nextBool()) {
-      heads++;
-    } else {
-      tails++;
-    }
-  }
-  print("Heads: $heads\n"
-      "Tails: $tails\n"
-      "Ratio: ${heads/tails}\n");
-  Expect.approxEquals(1.0, heads / tails, 0.1);
-
-  // A sequence of newly allocated Random number generators should have fair
-  // initial tosses.
-  heads = 0;
-  tails = 0;
-  for (var i = 0; i < 10000; i++) {
-    rnd = new Random();
-    if (rnd.nextBool()) {
-      heads++;
-    } else {
-      tails++;
-    }
-  }
-  print("Heads: $heads\n"
-      "Tails: $tails\n"
-      "Ratio: ${heads/tails}\n");
-  Expect.approxEquals(1.0, heads / tails, 0.1);
-}
diff --git a/tests/lib_2/math/double_pow_test.dart b/tests/lib_2/math/double_pow_test.dart
deleted file mode 100644
index 0a28f20ff30..00000000000
--- a/tests/lib_2/math/double_pow_test.dart
+++ /dev/null
@@ -1,176 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=20 --no-background-compilation
-
-// @dart = 2.9
-
-library math_test;
-
-import "package:expect/expect.dart";
-import 'dart:math';
-
-void checkVeryClose(double a, double b) {
-  // We find a ulp (unit in the last place) by shifting the original number
-  // to the right. This only works if we are not too close to infinity or if
-  // we work with denormals.
-  // We special case for 0.0, but not for infinity.
-  if (a == 0.0) {
-    final minimalDouble = 4.9406564584124654e-324;
-    Expect.equals(true, b.abs() <= minimalDouble);
-    return;
-  }
-  if (b == 0.0) {
-    // No need to look if they are close. Otherwise the check for 'a' above
-    // would have triggered.
-    Expect.equals(a, b);
-  }
-  final double shiftRightBy52 = 2.220446049250313080847263336181640625e-16;
-  final double shiftedA = (a * shiftRightBy52).abs();
-  // Compared to 'a', 'shiftedA' is now ~1-2 ulp.
-
-  final double limitLow = a - shiftedA;
-  final double limitHigh = a + shiftedA;
-  Expect.equals(false, a == limitLow);
-  Expect.equals(false, a == limitHigh);
-  Expect.equals(true, limitLow <= b);
-  Expect.equals(true, b <= limitHigh);
-}
-
-const NaN = double.nan;
-const Infinity = double.infinity;
-
-var samples = [
-  NaN,
-  -Infinity,
-  -3.0, // Odd integer
-  -2.0, // Even integer
-  -1.5, // Non-integer, magnitude > 1
-  -1.0, // Unit
-  -0.5, // Non-integer, magnitude < 1.
-  -0.0,
-  0.5, // Non-integer, magnitude < 1.
-  1.0, // Unit
-  1.5, // Non-integer, magnitude > 1
-  2.0, // Even integer
-  3.0, // Odd integer
-  Infinity
-];
-
-test() {
-  // Tests of pow(x, y):
-  for (var d in samples) {
-    // if `y` is zero (0.0 or -0.0), the result is always 1.0.
-    Expect.identical(1.0, pow(d, 0.0), "$d");
-    Expect.identical(1.0, pow(d, -0.0), "$d");
-  }
-  for (var d in samples) {
-    // if `x` is 1.0, the result is always 1.0.
-    Expect.identical(1.0, pow(1.0, d), "$d");
-  }
-  for (var d in samples) {
-    // otherwise, if either `x` or `y` is NaN then the result is NaN.
-    if (d != 0.0) Expect.isTrue(pow(NaN, d).isNaN, "$d");
-    if (d != 1.0) Expect.isTrue(pow(d, NaN).isNaN, "$d");
-  }
-
-  for (var d in samples) {
-    // if `x` is a finite and strictly negative and `y` is a finite non-integer,
-    // the result is NaN.
-    if (d < 0 && !d.isInfinite) {
-      Expect.isTrue(pow(d, 0.5).isNaN, "$d");
-      Expect.isTrue(pow(d, -0.5).isNaN, "$d");
-      Expect.isTrue(pow(d, 1.5).isNaN, "$d");
-      Expect.isTrue(pow(d, -1.5).isNaN, "$d");
-    }
-  }
-
-  for (var d in samples) {
-    if (d < 0) {
-      // if `x` is Infinity and `y` is strictly negative, the result is 0.0.
-      Expect.identical(0.0, pow(Infinity, d), "$d");
-    }
-    if (d > 0) {
-      // if `x` is Infinity and `y` is strictly positive, the result is Infinity.
-      Expect.identical(Infinity, pow(Infinity, d), "$d");
-    }
-  }
-
-  for (var d in samples) {
-    if (d < 0) {
-      // if `x` is 0.0 and `y` is strictly negative, the result is Infinity.
-      Expect.identical(Infinity, pow(0.0, d), "$d");
-    }
-    if (d > 0) {
-      // if `x` is 0.0 and `y` is strictly positive, the result is 0.0.
-      Expect.identical(0.0, pow(0.0, d), "$d");
-    }
-  }
-
-  for (var d in samples) {
-    if (!d.isInfinite && !d.isNaN) {
-      var dint = d.toInt();
-      if (d == dint && dint.isOdd) {
-        // if `x` is -Infinity or -0.0 and `y` is an odd integer, then the
-        // result is`-pow(-x ,y)`.
-        Expect.identical(-pow(Infinity, d), pow(-Infinity, d));
-        Expect.identical(-pow(0.0, d), pow(-0.0, d));
-        continue;
-      }
-    }
-    // if `x` is -Infinity or -0.0 and `y` is not an odd integer, then the
-    // result is the same as `pow(-x , y)`.
-    if (d.isNaN) {
-      Expect.isTrue(pow(Infinity, d).isNaN);
-      Expect.isTrue(pow(-Infinity, d).isNaN);
-      Expect.isTrue(pow(0.0, d).isNaN);
-      Expect.isTrue(pow(-0.0, d).isNaN);
-      continue;
-    }
-    Expect.identical(pow(Infinity, d), pow(-Infinity, d));
-    Expect.identical(pow(0.0, d), pow(-0.0, d));
-  }
-
-  for (var d in samples) {
-    if (d.abs() < 1) {
-      // if `y` is Infinity and the absolute value of `x` is less than 1, the
-      // result is 0.0.
-      Expect.identical(0.0, pow(d, Infinity));
-    } else if (d.abs() > 1) {
-      // if `y` is Infinity and the absolute value of `x` is greater than 1,
-      // the result is Infinity.
-      Expect.identical(Infinity, pow(d, Infinity));
-    } else if (d == -1) {
-      // if `y` is Infinity and `x` is -1, the result is 1.0.
-      Expect.identical(1.0, pow(d, Infinity));
-    }
-    // if `y` is -Infinity, the result is `1/pow(x, Infinity)`.
-    if (d.isNaN) {
-      Expect.isTrue((1 / pow(d, Infinity)).isNaN);
-      Expect.isTrue(pow(d, -Infinity).isNaN);
-    } else {
-      Expect.identical(1 / pow(d, Infinity), pow(d, -Infinity));
-    }
-  }
-
-  // Some non-exceptional values.
-  checkVeryClose(16.0, pow(4.0, 2.0));
-  checkVeryClose(sqrt2, pow(2.0, 0.5));
-  checkVeryClose(sqrt1_2, pow(0.5, 0.5));
-  // Denormal result.
-  Expect.identical(5e-324, pow(2.0, -1074.0));
-  // Overflow.
-  Expect.identical(Infinity, pow(10.0, 309.0));
-  // Underflow.
-  Expect.identical(0.0, pow(10.0, -325.0));
-
-  // Conversion to double.
-
-  // The second argument is an odd integer as int, but not when converted
-  // to double.
-  Expect.identical(Infinity, pow(-0.0, -9223372036854775807));
-}
-
-main() {
-  for (int i = 0; i < 10; i++) test();
-}
diff --git a/tests/lib_2/math/implement_rectangle_test.dart b/tests/lib_2/math/implement_rectangle_test.dart
deleted file mode 100644
index f4a616790bb..00000000000
--- a/tests/lib_2/math/implement_rectangle_test.dart
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:math' hide Rectangle;
-import 'dart:math' as math show Point, Rectangle, MutableRectangle;
-import 'package:expect/expect.dart' show Expect;
-
-void main() {
-  verifyRectable(new Rectangle(1, 2, 3, 4));
-}
-
-void verifyRectable(math.Rectangle rect) {
-  Expect.equals(1.0, rect.left.toDouble());
-  Expect.equals(2.0, rect.top.toDouble());
-  Expect.equals(4.0, rect.right.toDouble());
-  Expect.equals(6.0, rect.bottom.toDouble());
-}
-
-class Rectangle<T extends num> implements math.MutableRectangle<T> {
-  T left;
-  T top;
-  T width;
-  T height;
-
-  Rectangle(this.left, this.top, this.width, this.height);
-
-  T get right => left + width;
-
-  T get bottom => top + height;
-
-  Point<T> get topLeft => new Point<T>(left, top);
-
-  Point<T> get topRight => new Point<T>(right, top);
-
-  Point<T> get bottomLeft => new Point<T>(left, bottom);
-
-  Point<T> get bottomRight => new Point<T>(right, bottom);
-
-  //---------------------------------------------------------------------------
-
-  bool contains(num px, num py) {
-    return left <= px && top <= py && right > px && bottom > py;
-  }
-
-  bool containsPoint(math.Point<num> p) {
-    return contains(p.x, p.y);
-  }
-
-  bool intersects(math.Rectangle<num> r) {
-    return left < r.right && right > r.left && top < r.bottom && bottom > r.top;
-  }
-
-  /// Returns a new rectangle which completely contains `this` and [other].
-
-  Rectangle<T> boundingBox(math.Rectangle<T> other) {
-    T rLeft = min(left, other.left);
-    T rTop = min(top, other.top);
-    T rRight = max(right, other.right);
-    T rBottom = max(bottom, other.bottom);
-    return new Rectangle<T>(rLeft, rTop, rRight - rLeft, rBottom - rTop);
-  }
-
-  /// Tests whether `this` entirely contains [another].
-
-  bool containsRectangle(math.Rectangle<num> r) {
-    return left <= r.left &&
-        top <= r.top &&
-        right >= r.right &&
-        bottom >= r.bottom;
-  }
-
-  Rectangle<T> intersection(math.Rectangle<T> rect) {
-    T rLeft = max(left, rect.left);
-    T rTop = max(top, rect.top);
-    T rRight = min(right, rect.right);
-    T rBottom = min(bottom, rect.bottom);
-    return new Rectangle<T>(rLeft, rTop, rRight - rLeft, rBottom - rTop);
-  }
-}
diff --git a/tests/lib_2/math/low_test.dart b/tests/lib_2/math/low_test.dart
deleted file mode 100644
index d25b4ee7ffb..00000000000
--- a/tests/lib_2/math/low_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that the default PRNG does uniformly distribute values when not using
-// a power of 2.
-
-import "package:expect/expect.dart";
-import 'dart:math';
-
-void main() {
-  var n = (2 * 0x100000000) ~/ 3;
-  var n2 = n ~/ 2;
-
-  var iterations = 200000;
-
-  var seed = new Random().nextInt(1 << 16);
-  print("low_test seed: $seed");
-  var prng = new Random(seed);
-
-  var low = 0;
-  for (var i = 0; i < iterations; i++) {
-    if (prng.nextInt(n) < n2) {
-      low++;
-    }
-  }
-
-  var diff = (low - (iterations ~/ 2)).abs();
-  print("$low, $diff");
-  Expect.isTrue(diff < (iterations ~/ 20));
-}
diff --git a/tests/lib_2/math/math2_test.dart b/tests/lib_2/math/math2_test.dart
deleted file mode 100644
index 8f8dc57003f..00000000000
--- a/tests/lib_2/math/math2_test.dart
+++ /dev/null
@@ -1,267 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// We temporarily test both the new math library and the old Math
-// class. This can easily be simplified once we get rid of the Math
-// class entirely.
-library math_test;
-
-import "package:expect/expect.dart";
-import 'dart:math' as math;
-
-class MathLibraryTest {
-  static void testConstants() {
-    // Source for mathematical constants is Wolfram Alpha.
-    Expect.equals(
-        2.7182818284590452353602874713526624977572470936999595749669, math.e);
-    Expect.equals(2.3025850929940456840179914546843642076011014886287729760333,
-        math.ln10);
-    Expect.equals(
-        0.6931471805599453094172321214581765680755001343602552541206, math.ln2);
-    Expect.equals(1.4426950408889634073599246810018921374266459541529859341354,
-        math.log2e);
-    Expect.equals(0.4342944819032518276511289189166050822943970058036665661144,
-        math.log10e);
-    Expect.equals(
-        3.1415926535897932384626433832795028841971693993751058209749, math.pi);
-    Expect.equals(0.7071067811865475244008443621048490392848359376884740365883,
-        math.sqrt1_2);
-    Expect.equals(1.4142135623730950488016887242096980785696718753769480731766,
-        math.sqrt2);
-  }
-
-  static checkClose(double a, double b, EPSILON) {
-    Expect.equals(true, a - EPSILON <= b);
-    Expect.equals(true, b <= a + EPSILON);
-  }
-
-  static void testSin() {
-    // Given the imprecision of pi we can't expect better results than this.
-    final double EPSILON = 1e-15;
-    checkClose(0.0, math.sin(0.0), EPSILON);
-    checkClose(0.0, math.sin(math.pi), EPSILON);
-    checkClose(0.0, math.sin(2.0 * math.pi), EPSILON);
-    checkClose(1.0, math.sin(math.pi / 2.0), EPSILON);
-    checkClose(-1.0, math.sin(math.pi * (3.0 / 2.0)), EPSILON);
-  }
-
-  static void testCos() {
-    // Given the imprecision of pi we can't expect better results than this.
-    final double EPSILON = 1e-15;
-    checkClose(1.0, math.cos(0.0), EPSILON);
-    checkClose(-1.0, math.cos(math.pi), EPSILON);
-    checkClose(1.0, math.cos(2.0 * math.pi), EPSILON);
-    checkClose(0.0, math.cos(math.pi / 2.0), EPSILON);
-    checkClose(0.0, math.cos(math.pi * (3.0 / 2.0)), EPSILON);
-  }
-
-  static void testTan() {
-    // Given the imprecision of pi we can't expect better results than this.
-    final double EPSILON = 1e-15;
-    checkClose(0.0, math.tan(0.0), EPSILON);
-    checkClose(0.0, math.tan(math.pi), EPSILON);
-    checkClose(0.0, math.tan(2.0 * math.pi), EPSILON);
-    checkClose(1.0, math.tan(math.pi / 4.0), EPSILON);
-  }
-
-  static void testAsin() {
-    // Given the imprecision of pi we can't expect better results than this.
-    final double EPSILON = 1e-15;
-    checkClose(0.0, math.asin(0.0), EPSILON);
-    checkClose(math.pi / 2.0, math.asin(1.0), EPSILON);
-    checkClose(-math.pi / 2.0, math.asin(-1.0), EPSILON);
-  }
-
-  static void testAcos() {
-    // Given the imprecision of pi we can't expect better results than this.
-    final double EPSILON = 1e-15;
-    checkClose(0.0, math.acos(1.0), EPSILON);
-    checkClose(math.pi, math.acos(-1.0), EPSILON);
-    checkClose(math.pi / 2.0, math.acos(0.0), EPSILON);
-  }
-
-  static void testAtan() {
-    // Given the imprecision of pi we can't expect better results than this.
-    final double EPSILON = 1e-15;
-    checkClose(0.0, math.atan(0.0), EPSILON);
-    checkClose(math.pi / 4.0, math.atan(1.0), EPSILON);
-    checkClose(-math.pi / 4.0, math.atan(-1.0), EPSILON);
-  }
-
-  static void testAtan2() {
-    // Given the imprecision of pi we can't expect better results than this.
-    final double EPSILON = 1e-15;
-    checkClose(0.0, math.atan2(0.0, 5.0), EPSILON);
-    checkClose(math.pi / 4.0, math.atan2(2.0, 2.0), EPSILON);
-    checkClose(3 * math.pi / 4.0, math.atan2(0.5, -0.5), EPSILON);
-    checkClose(-3 * math.pi / 4.0, math.atan2(-2.5, -2.5), EPSILON);
-  }
-
-  static checkVeryClose(double a, double b) {
-    // We find a ulp (unit in the last place) by shifting the original number
-    // to the right. This only works if we are not too close to infinity or if
-    // we work with denormals.
-    // We special case or 0.0, but not for infinity.
-    if (a == 0.0) {
-      final minimalDouble = 4.9406564584124654e-324;
-      Expect.equals(true, b.abs() <= minimalDouble);
-      return;
-    }
-    if (b == 0.0) {
-      // No need to look if they are close. Otherwise the check for 'a' above
-      // would have triggered.
-      Expect.equals(a, b);
-    }
-    final double shiftRightBy52 = 2.220446049250313080847263336181640625e-16;
-    final double shiftedA = (a * shiftRightBy52).abs();
-    // Compared to 'a', 'shiftedA' is now ~1-2 ulp.
-
-    final double limitLow = a - shiftedA;
-    final double limitHigh = a + shiftedA;
-    Expect.equals(false, a == limitLow);
-    Expect.equals(false, a == limitHigh);
-    Expect.equals(true, limitLow <= b);
-    Expect.equals(true, b <= limitHigh);
-  }
-
-  static void testSqrt() {
-    checkVeryClose(2.0, math.sqrt(4.0));
-    checkVeryClose(math.sqrt2, math.sqrt(2.0));
-    checkVeryClose(math.sqrt1_2, math.sqrt(0.5));
-    checkVeryClose(1e50, math.sqrt(1e100));
-    checkVeryClose(1.1111111061110855443054405046358901279277111935183977e56,
-        math.sqrt(12345678901234e99));
-  }
-
-  static void testExp() {
-    checkVeryClose(math.e, math.exp(1.0));
-    final EPSILON = 1e-15;
-    checkClose(10.0, math.exp(math.ln10), EPSILON);
-    checkClose(2.0, math.exp(math.ln2), EPSILON);
-  }
-
-  static void testLog() {
-    // Even though E is imprecise, it is good enough to get really close to 1.
-    // We still provide an epsilon.
-    checkClose(1.0, math.log(math.e), 1e-16);
-    checkVeryClose(math.ln10, math.log(10.0));
-    checkVeryClose(math.ln2, math.log(2.0));
-  }
-
-  static void testPow() {
-    checkVeryClose(16.0, math.pow(4.0, 2.0));
-    checkVeryClose(math.sqrt2, math.pow(2.0, 0.5));
-    checkVeryClose(math.sqrt1_2, math.pow(0.5, 0.5));
-  }
-
-  static bool parseIntThrowsFormatException(str) {
-    try {
-      int.parse(str);
-      return false;
-    } on FormatException catch (e) {
-      return true;
-    }
-  }
-
-  static void testParseInt() {
-    Expect.equals(499, int.parse("499"));
-    Expect.equals(499, int.parse("+499"));
-    Expect.equals(-499, int.parse("-499"));
-    Expect.equals(499, int.parse("   499   "));
-    Expect.equals(499, int.parse("   +499   "));
-    Expect.equals(-499, int.parse("   -499   "));
-    Expect.equals(0, int.parse("0"));
-    Expect.equals(0, int.parse("+0"));
-    Expect.equals(0, int.parse("-0"));
-    Expect.equals(0, int.parse("   0   "));
-    Expect.equals(0, int.parse("   +0   "));
-    Expect.equals(0, int.parse("   -0   "));
-    Expect.equals(0x1234567890, int.parse("0x1234567890"));
-    Expect.equals(-0x1234567890, int.parse("-0x1234567890"));
-    Expect.equals(0x1234567890, int.parse("   0x1234567890   "));
-    Expect.equals(-0x1234567890, int.parse("   -0x1234567890   "));
-    Expect.equals(256, int.parse("0x100"));
-    Expect.equals(-256, int.parse("-0x100"));
-    Expect.equals(256, int.parse("   0x100   "));
-    Expect.equals(-256, int.parse("   -0x100   "));
-    Expect.equals(0xabcdef, int.parse("0xabcdef"));
-    Expect.equals(0xABCDEF, int.parse("0xABCDEF"));
-    Expect.equals(0xabcdef, int.parse("0xabCDEf"));
-    Expect.equals(-0xabcdef, int.parse("-0xabcdef"));
-    Expect.equals(-0xABCDEF, int.parse("-0xABCDEF"));
-    Expect.equals(0xabcdef, int.parse("   0xabcdef   "));
-    Expect.equals(0xABCDEF, int.parse("   0xABCDEF   "));
-    Expect.equals(-0xabcdef, int.parse("   -0xabcdef   "));
-    Expect.equals(-0xABCDEF, int.parse("   -0xABCDEF   "));
-    Expect.equals(0xabcdef, int.parse("0x00000abcdef"));
-    Expect.equals(0xABCDEF, int.parse("0x00000ABCDEF"));
-    Expect.equals(-0xabcdef, int.parse("-0x00000abcdef"));
-    Expect.equals(-0xABCDEF, int.parse("-0x00000ABCDEF"));
-    Expect.equals(0xabcdef, int.parse("   0x00000abcdef   "));
-    Expect.equals(0xABCDEF, int.parse("   0x00000ABCDEF   "));
-    Expect.equals(-0xabcdef, int.parse("   -0x00000abcdef   "));
-    Expect.equals(-0xABCDEF, int.parse("   -0x00000ABCDEF   "));
-    Expect.equals(10, int.parse("010"));
-    Expect.equals(-10, int.parse("-010"));
-    Expect.equals(10, int.parse("   010   "));
-    Expect.equals(-10, int.parse("   -010   "));
-    Expect.equals(9, int.parse("09"));
-    Expect.equals(9, int.parse(" 09 "));
-    Expect.equals(-9, int.parse("-09"));
-    Expect.equals(0x1234567890, int.parse("+0x1234567890"));
-    Expect.equals(0x1234567890, int.parse("   +0x1234567890   "));
-    Expect.equals(0x100, int.parse("+0x100"));
-    Expect.equals(0x100, int.parse("   +0x100   "));
-
-    Expect.equals(true, parseIntThrowsFormatException("1b"));
-    Expect.equals(true, parseIntThrowsFormatException(" 1b "));
-    Expect.equals(true, parseIntThrowsFormatException(" 1 b "));
-    Expect.equals(true, parseIntThrowsFormatException("1e2"));
-    Expect.equals(true, parseIntThrowsFormatException(" 1e2 "));
-    Expect.equals(true, parseIntThrowsFormatException("00x12"));
-    Expect.equals(true, parseIntThrowsFormatException(" 00x12 "));
-    Expect.equals(true, parseIntThrowsFormatException("-1b"));
-    Expect.equals(true, parseIntThrowsFormatException(" -1b "));
-    Expect.equals(true, parseIntThrowsFormatException(" -1 b "));
-    Expect.equals(true, parseIntThrowsFormatException("-1e2"));
-    Expect.equals(true, parseIntThrowsFormatException(" -1e2 "));
-    Expect.equals(true, parseIntThrowsFormatException("-00x12"));
-    Expect.equals(true, parseIntThrowsFormatException(" -00x12 "));
-    Expect.equals(true, parseIntThrowsFormatException("  -00x12 "));
-    Expect.equals(true, parseIntThrowsFormatException("0x0x12"));
-    Expect.equals(true, parseIntThrowsFormatException("0.1"));
-    Expect.equals(true, parseIntThrowsFormatException("0x3.1"));
-    Expect.equals(true, parseIntThrowsFormatException("5."));
-    Expect.equals(true, parseIntThrowsFormatException("+-5"));
-    Expect.equals(true, parseIntThrowsFormatException("-+5"));
-    Expect.equals(true, parseIntThrowsFormatException("--5"));
-    Expect.equals(true, parseIntThrowsFormatException("++5"));
-    Expect.equals(true, parseIntThrowsFormatException("+ 5"));
-    Expect.equals(true, parseIntThrowsFormatException("- 5"));
-    Expect.equals(true, parseIntThrowsFormatException(""));
-    Expect.equals(true, parseIntThrowsFormatException("  "));
-  }
-
-  static testMain() {
-    testConstants();
-    testSin();
-    testCos();
-    testTan();
-    testAsin();
-    testAcos();
-    testAtan();
-    testAtan2();
-    testSqrt();
-    testLog();
-    testExp();
-    testPow();
-    testParseInt();
-  }
-}
-
-main() {
-  MathLibraryTest.testMain();
-}
diff --git a/tests/lib_2/math/math_parse_double_test.dart b/tests/lib_2/math/math_parse_double_test.dart
deleted file mode 100644
index 8aef34fc378..00000000000
--- a/tests/lib_2/math/math_parse_double_test.dart
+++ /dev/null
@@ -1,172 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// We temporarily test both the new math library and the old Math
-// class. This can easily be simplified once we get rid of the Math
-// class entirely.
-library math_parse_double_test;
-
-import "package:expect/expect.dart";
-
-void parseDoubleThrowsFormatException(str) {
-  Expect.throwsFormatException(() => double.parse(str));
-}
-
-void runTest(double expected, String input) {
-  Expect.equals(expected, double.parse(input));
-  Expect.equals(expected, double.parse(" $input "));
-  Expect.equals(expected, double.parse(" $input"));
-  Expect.equals(expected, double.parse("$input "));
-  Expect.equals(expected, double.parse("+$input"));
-  Expect.equals(expected, double.parse(" +$input "));
-  Expect.equals(expected, double.parse("+$input "));
-  Expect.equals(expected, double.parse("\xA0 $input\xA0 "));
-  Expect.equals(expected, double.parse(" \xA0$input"));
-  Expect.equals(expected, double.parse("$input \xA0"));
-  Expect.equals(expected, double.parse("\xA0 +$input\xA0 "));
-  Expect.equals(expected, double.parse("+$input\xA0 "));
-  Expect.equals(expected, double.parse("\u205F $input\u205F "));
-  Expect.equals(expected, double.parse("$input \u2006"));
-  Expect.equals(expected, double.parse("\u1680 +$input\u1680 "));
-  Expect.equals(-expected, double.parse("-$input"));
-  Expect.equals(-expected, double.parse(" -$input "));
-  Expect.equals(-expected, double.parse("-$input "));
-  Expect.equals(-expected, double.parse("\xA0 -$input\xA0 "));
-  Expect.equals(-expected, double.parse("-$input\xA0 "));
-  Expect.equals(-expected, double.parse("\u1680 -$input\u1680 "));
-}
-
-final TESTS = [
-  [499.0, "499"],
-  [499.0, "499."],
-  [499.0, "499.0"],
-  [0.0, "0"],
-  [0.0, ".0"],
-  [0.0, "0."],
-  [0.1, "0.1"],
-  [0.1, ".1"],
-  [10.0, "010"],
-  [1.5, "1.5"],
-  [1.5, "001.5"],
-  [1.5, "1.500"],
-  [1234567.89, "1234567.89"],
-  [1234567e89, "1234567e89"],
-  [1234567.89e2, "1234567.89e2"],
-  [1234567.89e2, "1234567.89e+2"],
-  [1234567.89e-2, "1234567.89e-2"],
-  [5.0, "5"],
-  [123456700.0, "1234567.e2"],
-  [123456700.0, "1234567.e+2"],
-  [double.infinity, "Infinity"],
-  [5e-324, "5e-324"], // min-pos.
-  // Same, without exponential.
-  [
-    0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004940656458412465441765687928682213723650598026143247644255856825006755072702087518652998363616359923797965646954457177309266567103559397963987747960107818781263007131903114045278458171678489821036887186360569987307230500063874091535649843873124733972731696151400317153853980741262385655911710266585566867681870395603106249319452715914924553293054565444011274801297099995419319894090804165633245247571478690147267801593552386115501348035264934720193790268107107491703332226844753335720832431936092382893458368060106011506169809753078342277318329247904982524730776375927247874656084778203734469699533647017972677717585125660551199131504891101451037862738167250955837389733598993664809941164205702637090279242767544565229087538682506419718265533447265625,
-    "0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004940656458412465441765687928682213723650598026143247644255856825006755072702087518652998363616359923797965646954457177309266567103559397963987747960107818781263007131903114045278458171678489821036887186360569987307230500063874091535649843873124733972731696151400317153853980741262385655911710266585566867681870395603106249319452715914924553293054565444011274801297099995419319894090804165633245247571478690147267801593552386115501348035264934720193790268107107491703332226844753335720832431936092382893458368060106011506169809753078342277318329247904982524730776375927247874656084778203734469699533647017972677717585125660551199131504891101451037862738167250955837389733598993664809941164205702637090279242767544565229087538682506419718265533447265625"
-  ],
-  [0.0, "2e-324"], // underflow 0.0
-  [0.9999999999999999, "0.9999999999999999"], // max below 1
-  [1.0, "1.00000000000000005"], // 1.0
-  [1.0000000000000002, "1.0000000000000002"], // min above 1
-  [2147483647.0, "2147483647"], // max int32
-  [2147483647.0000002, "2147483647.0000002"], // min not int32
-  [2147483648.0, "2147483648"], // min int not int32
-  [4295967295.0, "4295967295"], // max uint32
-  [4295967295.000001, "4295967295.000001"], // min not uint-32
-  [4295967296.0, "4295967296"], // min int not-uint32
-  [1.7976931348623157e+308, "1.7976931348623157e+308"], // Max finite
-  [1.7976931348623157e+308, "1.7976931348623158e+308"], // Max finite
-  [double.infinity, "1.7976931348623159e+308"], // Infinity
-  [.049999999999999994, ".049999999999999994"], // not 0.5
-  [.05, ".04999999999999999935"],
-  [4503599627370498.0, "4503599627370497.5"],
-  [1.2345678901234568e+39, "1234567890123456898981341324213421342134"],
-  [9.87291183742987e+24, "9872911837429871193379121"],
-  [1e21, "1e+21"],
-];
-
-void main() {
-  for (var test in TESTS) {
-    runTest(test[0], test[1]);
-  }
-
-  Expect.equals(true, double.parse("-0").isNegative);
-  Expect.equals(true, double.parse("   -0   ").isNegative);
-  Expect.equals(true, double.parse("\xA0   -0   \xA0").isNegative);
-  Expect.isTrue(double.parse("NaN").isNaN);
-  Expect.isTrue(double.parse("-NaN").isNaN);
-  Expect.isTrue(double.parse("+NaN").isNaN);
-  Expect.isTrue(double.parse("NaN ").isNaN);
-  Expect.isTrue(double.parse("-NaN ").isNaN);
-  Expect.isTrue(double.parse("+NaN ").isNaN);
-  Expect.isTrue(double.parse(" NaN ").isNaN);
-  Expect.isTrue(double.parse(" -NaN ").isNaN);
-  Expect.isTrue(double.parse(" +NaN ").isNaN);
-  Expect.isTrue(double.parse(" NaN").isNaN);
-  Expect.isTrue(double.parse(" -NaN").isNaN);
-  Expect.isTrue(double.parse(" +NaN").isNaN);
-  Expect.isTrue(double.parse("NaN\xA0").isNaN);
-  Expect.isTrue(double.parse("-NaN\xA0").isNaN);
-  Expect.isTrue(double.parse("+NaN\xA0").isNaN);
-  Expect.isTrue(double.parse(" \xA0NaN\xA0").isNaN);
-  Expect.isTrue(double.parse(" \xA0-NaN\xA0").isNaN);
-  Expect.isTrue(double.parse(" \xA0+NaN\xA0").isNaN);
-  Expect.isTrue(double.parse(" \xA0NaN").isNaN);
-  Expect.isTrue(double.parse(" \xA0-NaN").isNaN);
-  Expect.isTrue(double.parse(" \xA0+NaN").isNaN);
-
-  parseDoubleThrowsFormatException("1b");
-  parseDoubleThrowsFormatException(" 1b ");
-  parseDoubleThrowsFormatException(" 1 b ");
-  parseDoubleThrowsFormatException(" e3 ");
-  parseDoubleThrowsFormatException(" .e3 ");
-  parseDoubleThrowsFormatException("00x12");
-  parseDoubleThrowsFormatException(" 00x12 ");
-  parseDoubleThrowsFormatException("-1b");
-  parseDoubleThrowsFormatException(" -1b ");
-  parseDoubleThrowsFormatException(" -1 b ");
-  parseDoubleThrowsFormatException("-00x12");
-  parseDoubleThrowsFormatException(" -00x12 ");
-  parseDoubleThrowsFormatException("  -00x12 ");
-  parseDoubleThrowsFormatException("0x0x12");
-  parseDoubleThrowsFormatException("+ 1.5");
-  parseDoubleThrowsFormatException("- 1.5");
-  parseDoubleThrowsFormatException("");
-  parseDoubleThrowsFormatException("   ");
-  parseDoubleThrowsFormatException("+0x1234567890");
-  parseDoubleThrowsFormatException("   +0x1234567890   ");
-  parseDoubleThrowsFormatException("   +0x100   ");
-  parseDoubleThrowsFormatException("+0x100");
-  parseDoubleThrowsFormatException("0x1234567890");
-  parseDoubleThrowsFormatException("-0x1234567890");
-  parseDoubleThrowsFormatException("   0x1234567890   ");
-  parseDoubleThrowsFormatException("   -0x1234567890   ");
-  parseDoubleThrowsFormatException("0x100");
-  parseDoubleThrowsFormatException("-0x100");
-  parseDoubleThrowsFormatException("   0x100   ");
-  parseDoubleThrowsFormatException("   -0x100   ");
-  parseDoubleThrowsFormatException("0xabcdef");
-  parseDoubleThrowsFormatException("0xABCDEF");
-  parseDoubleThrowsFormatException("0xabCDEf");
-  parseDoubleThrowsFormatException("-0xabcdef");
-  parseDoubleThrowsFormatException("-0xABCDEF");
-  parseDoubleThrowsFormatException("   0xabcdef   ");
-  parseDoubleThrowsFormatException("   0xABCDEF   ");
-  parseDoubleThrowsFormatException("   -0xabcdef   ");
-  parseDoubleThrowsFormatException("   -0xABCDEF   ");
-  parseDoubleThrowsFormatException("0x00000abcdef");
-  parseDoubleThrowsFormatException("0x00000ABCDEF");
-  parseDoubleThrowsFormatException("-0x00000abcdef");
-  parseDoubleThrowsFormatException("-0x00000ABCDEF");
-  parseDoubleThrowsFormatException("   0x00000abcdef   ");
-  parseDoubleThrowsFormatException("   0x00000ABCDEF   ");
-  parseDoubleThrowsFormatException("   -0x00000abcdef   ");
-  parseDoubleThrowsFormatException("   -0x00000ABCDEF   ");
-  parseDoubleThrowsFormatException("   -INFINITY   ");
-  parseDoubleThrowsFormatException("   NAN   ");
-  parseDoubleThrowsFormatException("   inf   ");
-  parseDoubleThrowsFormatException("   nan   ");
-}
diff --git a/tests/lib_2/math/math_test.dart b/tests/lib_2/math/math_test.dart
deleted file mode 100644
index dccb5a36f82..00000000000
--- a/tests/lib_2/math/math_test.dart
+++ /dev/null
@@ -1,256 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library math_test;
-
-import "package:expect/expect.dart";
-import 'dart:math';
-
-class MathTest {
-  static void testConstants() {
-    // Source for mathematical constants is Wolfram Alpha.
-    Expect.equals(
-        2.7182818284590452353602874713526624977572470936999595749669, e);
-    Expect.equals(
-        2.3025850929940456840179914546843642076011014886287729760333, ln10);
-    Expect.equals(
-        0.6931471805599453094172321214581765680755001343602552541206, ln2);
-    Expect.equals(
-        1.4426950408889634073599246810018921374266459541529859341354, log2e);
-    Expect.equals(
-        0.4342944819032518276511289189166050822943970058036665661144, log10e);
-    Expect.equals(
-        3.1415926535897932384626433832795028841971693993751058209749, pi);
-    Expect.equals(
-        0.7071067811865475244008443621048490392848359376884740365883, sqrt1_2);
-    Expect.equals(
-        1.4142135623730950488016887242096980785696718753769480731766, sqrt2);
-  }
-
-  static checkClose(double a, double b, EPSILON) {
-    Expect.equals(true, a - EPSILON <= b);
-    Expect.equals(true, b <= a + EPSILON);
-  }
-
-  static void testSin() {
-    // Given the imprecision of pi we can't expect better results than this.
-    final double EPSILON = 1e-15;
-    checkClose(0.0, sin(0.0), EPSILON);
-    checkClose(0.0, sin(pi), EPSILON);
-    checkClose(0.0, sin(2.0 * pi), EPSILON);
-    checkClose(1.0, sin(pi / 2.0), EPSILON);
-    checkClose(-1.0, sin(pi * (3.0 / 2.0)), EPSILON);
-  }
-
-  static void testCos() {
-    // Given the imprecision of pi we can't expect better results than this.
-    final double EPSILON = 1e-15;
-    checkClose(1.0, cos(0.0), EPSILON);
-    checkClose(-1.0, cos(pi), EPSILON);
-    checkClose(1.0, cos(2.0 * pi), EPSILON);
-    checkClose(0.0, cos(pi / 2.0), EPSILON);
-    checkClose(0.0, cos(pi * (3.0 / 2.0)), EPSILON);
-  }
-
-  static void testTan() {
-    // Given the imprecision of pi we can't expect better results than this.
-    final double EPSILON = 1e-15;
-    checkClose(0.0, tan(0.0), EPSILON);
-    checkClose(0.0, tan(pi), EPSILON);
-    checkClose(0.0, tan(2.0 * pi), EPSILON);
-    checkClose(1.0, tan(pi / 4.0), EPSILON);
-  }
-
-  static void testAsin() {
-    // Given the imprecision of pi we can't expect better results than this.
-    final double EPSILON = 1e-15;
-    checkClose(0.0, asin(0.0), EPSILON);
-    checkClose(pi / 2.0, asin(1.0), EPSILON);
-    checkClose(-pi / 2.0, asin(-1.0), EPSILON);
-  }
-
-  static void testAcos() {
-    // Given the imprecision of pi we can't expect better results than this.
-    final double EPSILON = 1e-15;
-    checkClose(0.0, acos(1.0), EPSILON);
-    checkClose(pi, acos(-1.0), EPSILON);
-    checkClose(pi / 2.0, acos(0.0), EPSILON);
-  }
-
-  static void testAtan() {
-    // Given the imprecision of pi we can't expect better results than this.
-    final double EPSILON = 1e-15;
-    checkClose(0.0, atan(0.0), EPSILON);
-    checkClose(pi / 4.0, atan(1.0), EPSILON);
-    checkClose(-pi / 4.0, atan(-1.0), EPSILON);
-  }
-
-  static void testAtan2() {
-    // Given the imprecision of pi we can't expect better results than this.
-    final double EPSILON = 1e-15;
-    checkClose(0.0, atan2(0.0, 5.0), EPSILON);
-    checkClose(pi / 4.0, atan2(2.0, 2.0), EPSILON);
-    checkClose(3 * pi / 4.0, atan2(0.5, -0.5), EPSILON);
-    checkClose(-3 * pi / 4.0, atan2(-2.5, -2.5), EPSILON);
-  }
-
-  static checkVeryClose(double a, double b) {
-    // We find a ulp (unit in the last place) by shifting the original number
-    // to the right. This only works if we are not too close to infinity or if
-    // we work with denormals.
-    // We special case or 0.0, but not for infinity.
-    if (a == 0.0) {
-      final minimalDouble = 4.9406564584124654e-324;
-      Expect.equals(true, b.abs() <= minimalDouble);
-      return;
-    }
-    if (b == 0.0) {
-      // No need to look if they are close. Otherwise the check for 'a' above
-      // would have triggered.
-      Expect.equals(a, b);
-    }
-    final double shiftRightBy52 = 2.220446049250313080847263336181640625e-16;
-    final double shiftedA = (a * shiftRightBy52).abs();
-    // Compared to 'a', 'shiftedA' is now ~1-2 ulp.
-
-    final double limitLow = a - shiftedA;
-    final double limitHigh = a + shiftedA;
-    Expect.equals(false, a == limitLow);
-    Expect.equals(false, a == limitHigh);
-    Expect.equals(true, limitLow <= b);
-    Expect.equals(true, b <= limitHigh);
-  }
-
-  static void testSqrt() {
-    checkVeryClose(2.0, sqrt(4.0));
-    checkVeryClose(sqrt2, sqrt(2.0));
-    checkVeryClose(sqrt1_2, sqrt(0.5));
-    checkVeryClose(1e50, sqrt(1e100));
-    checkVeryClose(1.1111111061110855443054405046358901279277111935183977e56,
-        sqrt(12345678901234e99));
-  }
-
-  static void testExp() {
-    checkVeryClose(e, exp(1.0));
-    final EPSILON = 1e-15;
-    checkClose(10.0, exp(ln10), EPSILON);
-    checkClose(2.0, exp(ln2), EPSILON);
-  }
-
-  static void testLog() {
-    // Even though E is imprecise, it is good enough to get really close to 1.
-    // We still provide an epsilon.
-    checkClose(1.0, log(e), 1e-16);
-    checkVeryClose(ln10, log(10.0));
-    checkVeryClose(ln2, log(2.0));
-  }
-
-  static bool parseIntThrowsFormatException(str) {
-    try {
-      int.parse(str);
-      return false;
-    } on FormatException catch (e) {
-      return true;
-    }
-  }
-
-  static void testParseInt() {
-    Expect.equals(499, int.parse("499"));
-    Expect.equals(499, int.parse("+499"));
-    Expect.equals(-499, int.parse("-499"));
-    Expect.equals(499, int.parse("   499   "));
-    Expect.equals(499, int.parse("   +499   "));
-    Expect.equals(-499, int.parse("   -499   "));
-    Expect.equals(0, int.parse("0"));
-    Expect.equals(0, int.parse("+0"));
-    Expect.equals(0, int.parse("-0"));
-    Expect.equals(0, int.parse("   0   "));
-    Expect.equals(0, int.parse("   +0   "));
-    Expect.equals(0, int.parse("   -0   "));
-    Expect.equals(0x1234567890, int.parse("0x1234567890"));
-    Expect.equals(-0x1234567890, int.parse("-0x1234567890"));
-    Expect.equals(0x1234567890, int.parse("   0x1234567890   "));
-    Expect.equals(-0x1234567890, int.parse("   -0x1234567890   "));
-    Expect.equals(256, int.parse("0x100"));
-    Expect.equals(-256, int.parse("-0x100"));
-    Expect.equals(256, int.parse("   0x100   "));
-    Expect.equals(-256, int.parse("   -0x100   "));
-    Expect.equals(0xabcdef, int.parse("0xabcdef"));
-    Expect.equals(0xABCDEF, int.parse("0xABCDEF"));
-    Expect.equals(0xabcdef, int.parse("0xabCDEf"));
-    Expect.equals(-0xabcdef, int.parse("-0xabcdef"));
-    Expect.equals(-0xABCDEF, int.parse("-0xABCDEF"));
-    Expect.equals(0xabcdef, int.parse("   0xabcdef   "));
-    Expect.equals(0xABCDEF, int.parse("   0xABCDEF   "));
-    Expect.equals(-0xabcdef, int.parse("   -0xabcdef   "));
-    Expect.equals(-0xABCDEF, int.parse("   -0xABCDEF   "));
-    Expect.equals(0xabcdef, int.parse("0x00000abcdef"));
-    Expect.equals(0xABCDEF, int.parse("0x00000ABCDEF"));
-    Expect.equals(-0xabcdef, int.parse("-0x00000abcdef"));
-    Expect.equals(-0xABCDEF, int.parse("-0x00000ABCDEF"));
-    Expect.equals(0xabcdef, int.parse("   0x00000abcdef   "));
-    Expect.equals(0xABCDEF, int.parse("   0x00000ABCDEF   "));
-    Expect.equals(-0xabcdef, int.parse("   -0x00000abcdef   "));
-    Expect.equals(-0xABCDEF, int.parse("   -0x00000ABCDEF   "));
-    Expect.equals(10, int.parse("010"));
-    Expect.equals(-10, int.parse("-010"));
-    Expect.equals(10, int.parse("   010   "));
-    Expect.equals(-10, int.parse("   -010   "));
-    Expect.equals(9, int.parse("09"));
-    Expect.equals(9, int.parse(" 09 "));
-    Expect.equals(-9, int.parse("-09"));
-    Expect.equals(0x1234567890, int.parse("+0x1234567890"));
-    Expect.equals(0x1234567890, int.parse("   +0x1234567890   "));
-    Expect.equals(0x100, int.parse("+0x100"));
-    Expect.equals(0x100, int.parse("   +0x100   "));
-    Expect.equals(true, parseIntThrowsFormatException("1b"));
-    Expect.equals(true, parseIntThrowsFormatException(" 1b "));
-    Expect.equals(true, parseIntThrowsFormatException(" 1 b "));
-    Expect.equals(true, parseIntThrowsFormatException("1e2"));
-    Expect.equals(true, parseIntThrowsFormatException(" 1e2 "));
-    Expect.equals(true, parseIntThrowsFormatException("00x12"));
-    Expect.equals(true, parseIntThrowsFormatException(" 00x12 "));
-    Expect.equals(true, parseIntThrowsFormatException("-1b"));
-    Expect.equals(true, parseIntThrowsFormatException(" -1b "));
-    Expect.equals(true, parseIntThrowsFormatException(" -1 b "));
-    Expect.equals(true, parseIntThrowsFormatException("-1e2"));
-    Expect.equals(true, parseIntThrowsFormatException(" -1e2 "));
-    Expect.equals(true, parseIntThrowsFormatException("-00x12"));
-    Expect.equals(true, parseIntThrowsFormatException(" -00x12 "));
-    Expect.equals(true, parseIntThrowsFormatException("  -00x12 "));
-    Expect.equals(true, parseIntThrowsFormatException("0x0x12"));
-    Expect.equals(true, parseIntThrowsFormatException("0.1"));
-    Expect.equals(true, parseIntThrowsFormatException("0x3.1"));
-    Expect.equals(true, parseIntThrowsFormatException("5."));
-    Expect.equals(true, parseIntThrowsFormatException("+-5"));
-    Expect.equals(true, parseIntThrowsFormatException("-+5"));
-    Expect.equals(true, parseIntThrowsFormatException("--5"));
-    Expect.equals(true, parseIntThrowsFormatException("++5"));
-    Expect.equals(true, parseIntThrowsFormatException("+ 5"));
-    Expect.equals(true, parseIntThrowsFormatException("- 5"));
-    Expect.equals(true, parseIntThrowsFormatException(""));
-    Expect.equals(true, parseIntThrowsFormatException("  "));
-  }
-
-  static testMain() {
-    testConstants();
-    testSin();
-    testCos();
-    testTan();
-    testAsin();
-    testAcos();
-    testAtan();
-    testAtan2();
-    testSqrt();
-    testLog();
-    testExp();
-    testParseInt();
-  }
-}
-
-main() {
-  MathTest.testMain();
-}
diff --git a/tests/lib_2/math/min_max_test.dart b/tests/lib_2/math/min_max_test.dart
deleted file mode 100644
index 57b43e41ec5..00000000000
--- a/tests/lib_2/math/min_max_test.dart
+++ /dev/null
@@ -1,565 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// Dart test for testing Math.min and Math.max.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-library min_max_test;
-
-import "package:expect/expect.dart";
-import 'dart:math';
-
-var inf = double.infinity;
-var nan = double.nan;
-
-// A class that might work if [min] and [max] worked for non-numbers.
-class Wrap implements Comparable<dynamic> {
-  final num value;
-  Wrap(this.value);
-  int compareTo(dynamic other) => value.compareTo(other.value);
-  bool operator <(Wrap other) => compareTo(other) < 0;
-  bool operator <=(Wrap other) => compareTo(other) <= 0;
-  bool operator >(Wrap other) => compareTo(other) > 0;
-  bool operator >=(Wrap other) => compareTo(other) >= 0;
-  bool operator ==(other) => other is Wrap && compareTo(other) == 0;
-  String toString() => 'Wrap($value)';
-  int get hashCode => value.hashCode;
-}
-
-var wrap1 = new Wrap(1);
-var wrap2 = new Wrap(2);
-
-testMin() {
-  testMin1();
-  testMin2();
-  testMin3();
-}
-
-testMin1() {
-  Expect.equals(0, min(0, 2));
-  Expect.equals(0, min(2, 0));
-
-  Expect.equals(-10, min(-10, -9));
-  Expect.equals(-10, min(-10, 9));
-  Expect.equals(-10, min(-10, 0));
-  Expect.equals(-10, min(-9, -10));
-  Expect.equals(-10, min(9, -10));
-  Expect.equals(-10, min(0, -10));
-
-  Expect.equals(0.5, min(0.5, 2.5));
-  Expect.equals(0.5, min(2.5, 0.5));
-
-  Expect.equals(-10.5, min(-10.5, -9.5));
-  Expect.equals(-10.5, min(-10.5, 9.5));
-  Expect.equals(-10.5, min(-10.5, 0.5));
-  Expect.equals(-10.5, min(-9.5, -10.5));
-  Expect.equals(-10.5, min(9.5, -10.5));
-  Expect.equals(-10.5, min(0.5, -10.5));
-  // Test matrix:
-  // NaN, -infinity, -499.0, -499, -0.0, 0.0, 0, 499.0, 499, +infinity.
-
-  Expect.isTrue(min(nan, nan).isNaN);
-  Expect.isTrue(min(nan, -inf).isNaN);
-  Expect.isTrue(min(nan, -499.0).isNaN);
-  Expect.isTrue(min(nan, -499).isNaN);
-  Expect.isTrue(min(nan, -0.0).isNaN);
-  Expect.isTrue(min(nan, 0.0).isNaN);
-  Expect.isTrue(min(nan, 499.0).isNaN);
-  Expect.isTrue(min(nan, 499).isNaN);
-  Expect.isTrue(min(nan, inf).isNaN);
-
-  Expect.equals(-inf, min(-inf, -inf));
-  Expect.equals(-inf, min(-inf, -499.0));
-  Expect.equals(-inf, min(-inf, -499));
-  Expect.equals(-inf, min(-inf, -0.0));
-  Expect.equals(-inf, min(-inf, 0.0));
-  Expect.equals(-inf, min(-inf, 0));
-  Expect.equals(-inf, min(-inf, 499));
-  Expect.equals(-inf, min(-inf, 499.0));
-  Expect.equals(-inf, min(-inf, inf));
-  Expect.isTrue(min(-inf, nan).isNaN);
-
-  Expect.equals(-inf, min(-499.0, -inf));
-  Expect.equals(-499.0, min(-499.0, -499.0));
-  Expect.equals(-499.0, min(-499.0, -499));
-  Expect.equals(-499.0, min(-499.0, -0.0));
-  Expect.equals(-499.0, min(-499.0, 0.0));
-  Expect.equals(-499.0, min(-499.0, 0));
-  Expect.equals(-499.0, min(-499.0, 499.0));
-  Expect.equals(-499.0, min(-499.0, 499));
-  Expect.equals(-499.0, min(-499.0, inf));
-  Expect.isTrue(min(-499.0, nan).isNaN);
-
-  Expect.isTrue(min(-499.0, -499.0) is double);
-  Expect.isTrue(min(-499.0, -499) is double);
-  Expect.isTrue(min(-499.0, -0.0) is double);
-  Expect.isTrue(min(-499.0, 0.0) is double);
-  Expect.isTrue(min(-499.0, 0) is double);
-  Expect.isTrue(min(-499.0, 499.0) is double);
-  Expect.isTrue(min(-499.0, 499) is double);
-  Expect.isTrue(min(-499.0, inf) is double);
-
-  Expect.equals(-inf, min(-499, -inf));
-  Expect.equals(-499, min(-499, -499.0));
-  Expect.equals(-499, min(-499, -499));
-  Expect.equals(-499, min(-499, -0.0));
-  Expect.equals(-499, min(-499, 0.0));
-  Expect.equals(-499, min(-499, 0));
-  Expect.equals(-499, min(-499, 499.0));
-  Expect.equals(-499, min(-499, 499));
-  Expect.equals(-499, min(-499, inf));
-  Expect.isTrue(min(-499, nan).isNaN);
-
-  Expect.isTrue(min(-499, -499.0) is int);
-  Expect.isTrue(min(-499, -499) is int);
-  Expect.isTrue(min(-499, -0.0) is int);
-  Expect.isTrue(min(-499, 0.0) is int);
-  Expect.isTrue(min(-499, 0) is int);
-  Expect.isTrue(min(-499, 499.0) is int);
-  Expect.isTrue(min(-499, 499) is int);
-  Expect.isTrue(min(-499, inf) is int);
-
-  Expect.equals(-inf, min(-0.0, -inf));
-  Expect.equals(-499.0, min(-0.0, -499.0));
-  Expect.equals(-499, min(-0.0, -499));
-  Expect.equals(-0.0, min(-0.0, -0.0));
-  Expect.equals(-0.0, min(-0.0, 0.0));
-  Expect.equals(-0.0, min(-0.0, 0));
-  Expect.equals(-0.0, min(-0.0, 499.0));
-  Expect.equals(-0.0, min(-0.0, 499));
-  Expect.equals(-0.0, min(-0.0, inf));
-  Expect.isTrue(min(-0.0, nan).isNaN);
-}
-
-testMin2() {
-  Expect.isTrue(min(-0.0, -499.0) is double);
-  Expect.isTrue(min(-0.0, -499) is int);
-  Expect.isTrue(min(-0.0, -0.0) is double);
-  Expect.isTrue(min(-0.0, 0.0) is double);
-  Expect.isTrue(min(-0.0, 0) is double);
-  Expect.isTrue(min(-0.0, 499.0) is double);
-  Expect.isTrue(min(-0.0, 499) is double);
-  Expect.isTrue(min(-0.0, inf) is double);
-
-  Expect.isTrue(min(-0.0, -499.0).isNegative);
-  Expect.isTrue(min(-0.0, -499).isNegative);
-  Expect.isTrue(min(-0.0, -0.0).isNegative);
-  Expect.isTrue(min(-0.0, 0.0).isNegative);
-  Expect.isTrue(min(-0.0, 0).isNegative);
-  Expect.isTrue(min(-0.0, 499.0).isNegative);
-  Expect.isTrue(min(-0.0, 499).isNegative);
-  Expect.isTrue(min(-0.0, inf).isNegative);
-
-  Expect.equals(-inf, min(0.0, -inf));
-  Expect.equals(-499.0, min(0.0, -499.0));
-  Expect.equals(-499, min(0.0, -499));
-  Expect.equals(-0.0, min(0.0, -0.0));
-  Expect.equals(0.0, min(0.0, 0.0));
-  Expect.equals(0.0, min(0.0, 0));
-  Expect.equals(0.0, min(0.0, 499.0));
-  Expect.equals(0.0, min(0.0, 499));
-  Expect.equals(0.0, min(0.0, inf));
-  Expect.isTrue(min(0.0, nan).isNaN);
-
-  Expect.isTrue(min(0.0, -499.0) is double);
-  Expect.isTrue(min(0.0, -499) is int);
-  Expect.isTrue(min(0.0, -0.0) is double);
-  Expect.isTrue(min(0.0, 0.0) is double);
-  Expect.isTrue(min(0.0, 0) is double);
-  Expect.isTrue(min(0.0, 499.0) is double);
-  Expect.isTrue(min(0.0, 499) is double);
-  Expect.isTrue(min(0.0, inf) is double);
-
-  Expect.isTrue(min(0.0, -499.0).isNegative);
-  Expect.isTrue(min(0.0, -499).isNegative);
-  Expect.isTrue(min(0.0, -0.0).isNegative);
-  Expect.isFalse(min(0.0, 0.0).isNegative);
-  Expect.isFalse(min(0.0, 0).isNegative);
-  Expect.isFalse(min(0.0, 499.0).isNegative);
-  Expect.isFalse(min(0.0, 499).isNegative);
-  Expect.isFalse(min(0.0, inf).isNegative);
-
-  Expect.equals(-inf, min(0, -inf));
-  Expect.equals(-499.0, min(0, -499.0));
-  Expect.equals(-499, min(0, -499));
-  Expect.equals(-0.0, min(0, -0.0));
-  Expect.equals(0, min(0, 0.0));
-  Expect.equals(0, min(0, 0));
-  Expect.equals(0, min(0, 499.0));
-  Expect.equals(0, min(0, 499));
-  Expect.equals(0, min(0, inf));
-  Expect.isTrue(min(0, nan).isNaN);
-
-  Expect.isTrue(min(0, -499.0) is double);
-  Expect.isTrue(min(0, -499) is int);
-  Expect.isTrue(min(0, -0.0) is double);
-  Expect.isTrue(min(0, 0.0) is int);
-  Expect.isTrue(min(0, 0) is int);
-  Expect.isTrue(min(0, 499.0) is int);
-  Expect.isTrue(min(0, 499) is int);
-  Expect.isTrue(min(0, inf) is int);
-  Expect.isTrue(min(0, -499.0).isNegative);
-  Expect.isTrue(min(0, -499).isNegative);
-  Expect.isTrue(min(0, -0.0).isNegative);
-  Expect.isFalse(min(0, 0.0).isNegative);
-  Expect.isFalse(min(0, 0).isNegative);
-  Expect.isFalse(min(0, 499.0).isNegative);
-  Expect.isFalse(min(0, 499).isNegative);
-  Expect.isFalse(min(0, inf).isNegative);
-}
-
-testMin3() {
-  Expect.equals(-inf, min(499.0, -inf));
-  Expect.equals(-499.0, min(499.0, -499.0));
-  Expect.equals(-499, min(499.0, -499));
-  Expect.equals(-0.0, min(499.0, -0.0));
-  Expect.equals(0.0, min(499.0, 0.0));
-  Expect.equals(0, min(499.0, 0));
-  Expect.equals(499.0, min(499.0, 499.0));
-  Expect.equals(499.0, min(499.0, 499));
-  Expect.equals(499.0, min(499.0, inf));
-  Expect.isTrue(min(499.0, nan).isNaN);
-
-  Expect.isTrue(min(499.0, -499.0) is double);
-  Expect.isTrue(min(499.0, -499) is int);
-  Expect.isTrue(min(499.0, -0.0) is double);
-  Expect.isTrue(min(499.0, 0.0) is double);
-  Expect.isTrue(min(499.0, 0) is int);
-  Expect.isTrue(min(499.0, 499) is double);
-  Expect.isTrue(min(499.0, 499.0) is double);
-  Expect.isTrue(min(499.0, inf) is double);
-
-  Expect.isTrue(min(499.0, -499.0).isNegative);
-  Expect.isTrue(min(499.0, -499).isNegative);
-  Expect.isTrue(min(499.0, -0.0).isNegative);
-  Expect.isFalse(min(499.0, 0.0).isNegative);
-  Expect.isFalse(min(499.0, 0).isNegative);
-  Expect.isFalse(min(499.0, 499).isNegative);
-  Expect.isFalse(min(499.0, 499.0).isNegative);
-  Expect.isFalse(min(499.0, inf).isNegative);
-
-  Expect.equals(-inf, min(499, -inf));
-  Expect.equals(-499.0, min(499, -499.0));
-  Expect.equals(-499, min(499, -499));
-  Expect.equals(-0.0, min(499, -0.0));
-  Expect.equals(0.0, min(499, 0.0));
-  Expect.equals(0, min(499, 0));
-  Expect.equals(499, min(499, 499.0));
-  Expect.equals(499, min(499, 499));
-  Expect.equals(499, min(499, inf));
-  Expect.isTrue(min(499, nan).isNaN);
-
-  Expect.isTrue(min(499, -499.0) is double);
-  Expect.isTrue(min(499, -499) is int);
-  Expect.isTrue(min(499, -0.0) is double);
-  Expect.isTrue(min(499, 0.0) is double);
-  Expect.isTrue(min(499, 0) is int);
-  Expect.isTrue(min(499, 499.0) is int);
-  Expect.isTrue(min(499, 499) is int);
-  Expect.isTrue(min(499, inf) is int);
-
-  Expect.isTrue(min(499, -499.0).isNegative);
-  Expect.isTrue(min(499, -499).isNegative);
-  Expect.isTrue(min(499, -0.0).isNegative);
-  Expect.isFalse(min(499, 0.0).isNegative);
-  Expect.isFalse(min(499, 0).isNegative);
-  Expect.isFalse(min(499, 499.0).isNegative);
-  Expect.isFalse(min(499, 499).isNegative);
-  Expect.isFalse(min(499, inf).isNegative);
-
-  Expect.equals(-inf, min(inf, -inf));
-  Expect.equals(-499.0, min(inf, -499.0));
-  Expect.equals(-499, min(inf, -499));
-  Expect.equals(-0.0, min(inf, -0.0));
-  Expect.equals(0.0, min(inf, 0.0));
-  Expect.equals(0, min(inf, 0));
-  Expect.equals(499.0, min(inf, 499.0));
-  Expect.equals(499, min(inf, 499));
-  Expect.equals(inf, min(inf, inf));
-  Expect.isTrue(min(inf, nan).isNaN);
-
-  Expect.isTrue(min(inf, -499.0) is double);
-  Expect.isTrue(min(inf, -499) is int);
-  Expect.isTrue(min(inf, -0.0) is double);
-  Expect.isTrue(min(inf, 0.0) is double);
-  Expect.isTrue(min(inf, 0) is int);
-  Expect.isTrue(min(inf, 499) is int);
-  Expect.isTrue(min(inf, 499.0) is double);
-  Expect.isTrue(min(inf, inf) is double);
-
-  Expect.isTrue(min(inf, -499.0).isNegative);
-  Expect.isTrue(min(inf, -499).isNegative);
-  Expect.isTrue(min(inf, -0.0).isNegative);
-  Expect.isFalse(min(inf, 0.0).isNegative);
-  Expect.isFalse(min(inf, 0).isNegative);
-  Expect.isFalse(min(inf, 499).isNegative);
-  Expect.isFalse(min(inf, 499.0).isNegative);
-  Expect.isFalse(min(inf, inf).isNegative);
-}
-
-testMax() {
-  testMax1();
-  testMax2();
-  testMax3();
-}
-
-testMax1() {
-  Expect.equals(2, max(0, 2));
-  Expect.equals(2, max(2, 0));
-
-  Expect.equals(-9, max(-10, -9));
-  Expect.equals(9, max(-10, 9));
-  Expect.equals(0, max(-10, 0));
-  Expect.equals(-9, max(-9, -10));
-  Expect.equals(9, max(9, -10));
-  Expect.equals(0, max(0, -10));
-
-  Expect.equals(2.5, max(0.5, 2.5));
-  Expect.equals(2.5, max(2.5, 0.5));
-
-  Expect.equals(-9.5, max(-10.5, -9.5));
-  Expect.equals(9.5, max(-10.5, 9.5));
-  Expect.equals(0.5, max(-10.5, 0.5));
-  Expect.equals(-9.5, max(-9.5, -10.5));
-  Expect.equals(9.5, max(9.5, -10.5));
-  Expect.equals(0.5, max(0.5, -10.5));
-
-  // Test matrix:
-  // NaN, infinity, 499.0, 499, 0.0, 0, -0.0, -499.0, -499, -infinity.
-
-  Expect.isTrue(max(nan, nan).isNaN);
-  Expect.isTrue(max(nan, -inf).isNaN);
-  Expect.isTrue(max(nan, -499.0).isNaN);
-  Expect.isTrue(max(nan, -499).isNaN);
-  Expect.isTrue(max(nan, -0.0).isNaN);
-  Expect.isTrue(max(nan, 0.0).isNaN);
-  Expect.isTrue(max(nan, 499.0).isNaN);
-  Expect.isTrue(max(nan, 499).isNaN);
-  Expect.isTrue(max(nan, inf).isNaN);
-
-  Expect.equals(inf, max(inf, inf));
-  Expect.equals(inf, max(inf, 499.0));
-  Expect.equals(inf, max(inf, 499));
-  Expect.equals(inf, max(inf, 0.0));
-  Expect.equals(inf, max(inf, 0));
-  Expect.equals(inf, max(inf, -0.0));
-  Expect.equals(inf, max(inf, -499));
-  Expect.equals(inf, max(inf, -499.0));
-  Expect.equals(inf, max(inf, -inf));
-  Expect.isTrue(max(inf, nan).isNaN);
-
-  Expect.equals(inf, max(499.0, inf));
-  Expect.equals(499.0, max(499.0, 499.0));
-  Expect.equals(499.0, max(499.0, 499));
-  Expect.equals(499.0, max(499.0, 0.0));
-  Expect.equals(499.0, max(499.0, 0));
-  Expect.equals(499.0, max(499.0, -0.0));
-  Expect.equals(499.0, max(499.0, -499));
-  Expect.equals(499.0, max(499.0, -499.0));
-  Expect.equals(499.0, max(499.0, -inf));
-  Expect.isTrue(max(499.0, nan).isNaN);
-
-  Expect.isTrue(max(499.0, 499.0) is double);
-  Expect.isTrue(max(499.0, 499) is double);
-  Expect.isTrue(max(499.0, 0.0) is double);
-  Expect.isTrue(max(499.0, 0) is double);
-  Expect.isTrue(max(499.0, -0.0) is double);
-  Expect.isTrue(max(499.0, -499) is double);
-  Expect.isTrue(max(499.0, -499.0) is double);
-  Expect.isTrue(max(499.0, -inf) is double);
-
-  Expect.equals(inf, max(499, inf));
-  Expect.equals(499, max(499, 499.0));
-  Expect.equals(499, max(499, 499));
-  Expect.equals(499, max(499, 0.0));
-  Expect.equals(499, max(499, 0));
-  Expect.equals(499, max(499, -0.0));
-  Expect.equals(499, max(499, -499));
-  Expect.equals(499, max(499, -499.0));
-  Expect.equals(499, max(499, -inf));
-  Expect.isTrue(max(499, nan).isNaN);
-
-  Expect.isTrue(max(499, 499.0) is int);
-  Expect.isTrue(max(499, 499) is int);
-  Expect.isTrue(max(499, 0.0) is int);
-  Expect.isTrue(max(499, 0) is int);
-  Expect.isTrue(max(499, -0.0) is int);
-  Expect.isTrue(max(499, -499) is int);
-  Expect.isTrue(max(499, -499.0) is int);
-  Expect.isTrue(max(499, -inf) is int);
-
-  Expect.equals(inf, max(0.0, inf));
-  Expect.equals(499.0, max(0.0, 499.0));
-  Expect.equals(499, max(0.0, 499));
-  Expect.equals(0.0, max(0.0, 0.0));
-  Expect.equals(0.0, max(0.0, 0));
-  Expect.equals(0.0, max(0.0, -0.0));
-  Expect.equals(0.0, max(0.0, -499));
-  Expect.equals(0.0, max(0.0, -499.0));
-  Expect.equals(0.0, max(0.0, -inf));
-  Expect.isTrue(max(0.0, nan).isNaN);
-
-  Expect.isTrue(max(0.0, 499.0) is double);
-  Expect.isTrue(max(0.0, 499) is int);
-  Expect.isTrue(max(0.0, 0.0) is double);
-  Expect.isTrue(max(0.0, 0) is double);
-  Expect.isTrue(max(0.0, -0.0) is double);
-  Expect.isTrue(max(0.0, -499) is double);
-  Expect.isTrue(max(0.0, -499.0) is double);
-  Expect.isTrue(max(0.0, -inf) is double);
-}
-
-testMax2() {
-  Expect.isFalse(max(0.0, 0.0).isNegative);
-  Expect.isFalse(max(0.0, 0).isNegative);
-  Expect.isFalse(max(0.0, -0.0).isNegative);
-  Expect.isFalse(max(0.0, -499).isNegative);
-  Expect.isFalse(max(0.0, -499.0).isNegative);
-  Expect.isFalse(max(0.0, -inf).isNegative);
-
-  Expect.equals(inf, max(0, inf));
-  Expect.equals(499.0, max(0, 499.0));
-  Expect.equals(499, max(0, 499));
-  Expect.equals(0, max(0, 0.0));
-  Expect.equals(0, max(0, 0));
-  Expect.equals(0, max(0, -0.0));
-  Expect.equals(0, max(0, -499));
-  Expect.equals(0, max(0, -499.0));
-  Expect.equals(0, max(0, -inf));
-  Expect.isTrue(max(0, nan).isNaN);
-
-  Expect.isTrue(max(0, 499.0) is double);
-  Expect.isTrue(max(0, 499) is int);
-  Expect.isTrue(max(0, 0.0) is int);
-  Expect.isTrue(max(0, 0) is int);
-  Expect.isTrue(max(0, -0.0) is int);
-  Expect.isTrue(max(0, -499) is int);
-  Expect.isTrue(max(0, -499.0) is int);
-  Expect.isTrue(max(0, -inf) is int);
-
-  Expect.isFalse(max(0, 0.0).isNegative);
-  Expect.isFalse(max(0, 0).isNegative);
-  Expect.isFalse(max(0, -0.0).isNegative);
-  Expect.isFalse(max(0, -499).isNegative);
-  Expect.isFalse(max(0, -499.0).isNegative);
-  Expect.isFalse(max(0, -inf).isNegative);
-
-  Expect.equals(inf, max(-0.0, inf));
-  Expect.equals(499.0, max(-0.0, 499.0));
-  Expect.equals(499, max(-0.0, 499));
-  Expect.equals(0.0, max(-0.0, 0.0));
-  Expect.equals(0.0, max(-0.0, 0));
-  Expect.equals(-0.0, max(-0.0, -0.0));
-  Expect.equals(-0.0, max(-0.0, -499));
-  Expect.equals(-0.0, max(-0.0, -499.0));
-  Expect.equals(-0.0, max(-0.0, -inf));
-  Expect.isTrue(max(-0.0, nan).isNaN);
-
-  Expect.isTrue(max(-0.0, 499.0) is double);
-  Expect.isTrue(max(-0.0, 499) is int);
-  Expect.isTrue(max(-0.0, 0.0) is double);
-  Expect.isTrue(max(-0.0, 0) is int);
-  Expect.isTrue(max(-0.0, -0.0) is double);
-  Expect.isTrue(max(-0.0, -499) is double);
-  Expect.isTrue(max(-0.0, -499.0) is double);
-  Expect.isTrue(max(-0.0, -inf) is double);
-}
-
-testMax3() {
-  Expect.isFalse(max(-0.0, 0.0).isNegative);
-  Expect.isFalse(max(-0.0, 0).isNegative);
-  Expect.isTrue(max(-0.0, -0.0).isNegative);
-  Expect.isTrue(max(-0.0, -499).isNegative);
-  Expect.isTrue(max(-0.0, -499.0).isNegative);
-  Expect.isTrue(max(-0.0, -inf).isNegative);
-
-  Expect.equals(inf, max(-499, inf));
-  Expect.equals(499.0, max(-499, 499.0));
-  Expect.equals(499, max(-499, 499));
-  Expect.equals(0.0, max(-499, 0.0));
-  Expect.equals(0.0, max(-499, 0));
-  Expect.equals(-0.0, max(-499, -0.0));
-  Expect.equals(-499, max(-499, -499));
-  Expect.equals(-499, max(-499, -499.0));
-  Expect.equals(-499, max(-499, -inf));
-  Expect.isTrue(max(-499, nan).isNaN);
-
-  Expect.isTrue(max(-499, 499.0) is double);
-  Expect.isTrue(max(-499, 499) is int);
-  Expect.isTrue(max(-499, 0.0) is double);
-  Expect.isTrue(max(-499, 0) is int);
-  Expect.isTrue(max(-499, -0.0) is double);
-  Expect.isTrue(max(-499, -499) is int);
-  Expect.isTrue(max(-499, -499.0) is int);
-  Expect.isTrue(max(-499, -inf) is int);
-
-  Expect.isFalse(max(-499, 0.0).isNegative);
-  Expect.isFalse(max(-499, 0).isNegative);
-  Expect.isTrue(max(-499, -0.0).isNegative);
-  Expect.isTrue(max(-499, -499).isNegative);
-  Expect.isTrue(max(-499, -499.0).isNegative);
-  Expect.isTrue(max(-499, -inf).isNegative);
-
-  Expect.equals(inf, max(-499.0, inf));
-  Expect.equals(499.0, max(-499.0, 499.0));
-  Expect.equals(499, max(-499.0, 499));
-  Expect.equals(0.0, max(-499.0, 0.0));
-  Expect.equals(0.0, max(-499.0, 0));
-  Expect.equals(-0.0, max(-499.0, -0.0));
-  Expect.equals(-499.0, max(-499.0, -499));
-  Expect.equals(-499.0, max(-499.0, -499.0));
-  Expect.equals(-499.0, max(-499.0, -inf));
-  Expect.isTrue(max(-499.0, nan).isNaN);
-
-  Expect.isTrue(max(-499.0, 499.0) is double);
-  Expect.isTrue(max(-499.0, 499) is int);
-  Expect.isTrue(max(-499.0, 0.0) is double);
-  Expect.isTrue(max(-499.0, 0) is int);
-  Expect.isTrue(max(-499.0, -0.0) is double);
-  Expect.isTrue(max(-499.0, -499) is double);
-  Expect.isTrue(max(-499.0, -499.0) is double);
-  Expect.isTrue(max(-499.0, -inf) is double);
-
-  Expect.isFalse(max(-499.0, 0.0).isNegative);
-  Expect.isFalse(max(-499.0, 0).isNegative);
-  Expect.isTrue(max(-499.0, -0.0).isNegative);
-  Expect.isTrue(max(-499.0, -499).isNegative);
-  Expect.isTrue(max(-499.0, -499.0).isNegative);
-  Expect.isTrue(max(-499.0, -inf).isNegative);
-
-  Expect.equals(inf, max(-inf, inf));
-  Expect.equals(499.0, max(-inf, 499.0));
-  Expect.equals(499, max(-inf, 499));
-  Expect.equals(0.0, max(-inf, 0.0));
-  Expect.equals(0.0, max(-inf, 0));
-  Expect.equals(-0.0, max(-inf, -0.0));
-  Expect.equals(-499, max(-inf, -499));
-  Expect.equals(-499.0, max(-inf, -499.0));
-  Expect.equals(-inf, max(-inf, -inf));
-  Expect.isTrue(max(-inf, nan).isNaN);
-
-  Expect.isTrue(max(-inf, 499.0) is double);
-  Expect.isTrue(max(-inf, 499) is int);
-  Expect.isTrue(max(-inf, 0.0) is double);
-  Expect.isTrue(max(-inf, 0) is int);
-  Expect.isTrue(max(-inf, -0.0) is double);
-  Expect.isTrue(max(-inf, -499) is int);
-  Expect.isTrue(max(-inf, -499.0) is double);
-  Expect.isTrue(max(-inf, -inf) is double);
-
-  Expect.isFalse(max(-inf, 0.0).isNegative);
-  Expect.isFalse(max(-inf, 0).isNegative);
-  Expect.isTrue(max(-inf, -0.0).isNegative);
-  Expect.isTrue(max(-inf, -499).isNegative);
-  Expect.isTrue(max(-inf, -499.0).isNegative);
-  Expect.isTrue(max(-inf, -inf).isNegative);
-}
-
-main() {
-  testMin();
-  testMin();
-  testMax();
-  testMax();
-}
diff --git a/tests/lib_2/math/pi_test.dart b/tests/lib_2/math/pi_test.dart
deleted file mode 100644
index cda9e752124..00000000000
--- a/tests/lib_2/math/pi_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that the default PRNG does converge towards Pi when doing a Monte Carlo
-// simulation.
-
-import "package:expect/expect.dart";
-import 'dart:math';
-
-var known_bad_seeds = const [50051, 55597, 59208];
-
-void main([args]) {
-  // Select a seed either from the argument passed in or
-  // otherwise a random seed.
-  var seed = -1;
-  if ((args != null) && (args.length > 0)) {
-    seed = int.parse(args[0]);
-  } else {
-    var seed_prng = new Random();
-    while (seed == -1) {
-      seed = seed_prng.nextInt(1 << 16);
-      if (known_bad_seeds.contains(seed)) {
-        // Reset seed and try again.
-        seed = -1;
-      }
-    }
-  }
-
-  // Setup the PRNG for the Monte Carlo simulation.
-  print("pi_test seed: $seed");
-  var prng = new Random(seed);
-
-  var outside = 0;
-  var inside = 0;
-  for (var i = 0; i < 600000; i++) {
-    var x = prng.nextDouble();
-    var y = prng.nextDouble();
-    if ((x * x) + (y * y) < 1.0) {
-      inside++;
-    } else {
-      outside++;
-    }
-  }
-  // Mmmmh, Pie!
-  var pie = 4.0 * (inside / (inside + outside));
-  print("$pie");
-  Expect.isTrue(((pi - 0.009) < pie) && (pie < (pi + 0.009)));
-}
diff --git a/tests/lib_2/math/point_test.dart b/tests/lib_2/math/point_test.dart
deleted file mode 100644
index 359e8b1b3f6..00000000000
--- a/tests/lib_2/math/point_test.dart
+++ /dev/null
@@ -1,101 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:math';
-import 'package:expect/expect.dart';
-
-main() {
-  // constructor
-  {
-    var point = new Point(0, 0);
-    Expect.equals(0, point.x);
-    Expect.equals(0, point.y);
-    Expect.equals('Point(0, 0)', '$point');
-  }
-
-  // constructor X
-  {
-    var point = new Point<int>(10, 0);
-    Expect.equals(10, point.x);
-    Expect.equals(0, point.y);
-    Expect.equals('Point(10, 0)', '$point');
-  }
-
-  // constructor X Y
-  {
-    var point = new Point<int>(10, 20);
-    Expect.equals(10, point.x);
-    Expect.equals(20, point.y);
-    Expect.equals('Point(10, 20)', '$point');
-  }
-
-  // constructor X Y double
-  {
-    var point = new Point<double>(10.5, 20.897);
-    Expect.equals(10.5, point.x);
-    Expect.equals(20.897, point.y);
-    Expect.equals('Point(10.5, 20.897)', '$point');
-  }
-
-  // constructor X Y NaN
-  {
-    var point = new Point(double.nan, 1000);
-    Expect.isTrue(point.x.isNaN);
-    Expect.equals(1000, point.y);
-    Expect.equals('Point(NaN, 1000)', '$point');
-  }
-
-  // squaredDistanceTo
-  {
-    var a = new Point(7, 11);
-    var b = new Point(3, -1);
-    Expect.equals(160, a.squaredDistanceTo(b));
-    Expect.equals(160, b.squaredDistanceTo(a));
-  }
-
-  // distanceTo
-  {
-    var a = new Point(-2, -3);
-    var b = new Point(2, 0);
-    Expect.equals(5, a.distanceTo(b));
-    Expect.equals(5, b.distanceTo(a));
-  }
-
-  // subtract
-  {
-    var a = new Point(5, 10);
-    var b = new Point(2, 50);
-    Expect.equals(new Point(3, -40), a - b);
-  }
-
-  // add
-  {
-    var a = new Point(5, 10);
-    var b = new Point(2, 50);
-    Expect.equals(new Point(7, 60), a + b);
-  }
-
-  // hashCode
-  {
-    var a = new Point(0, 1);
-    var b = new Point(0, 1);
-    Expect.equals(b.hashCode, a.hashCode);
-
-    var c = new Point(1, 0);
-    Expect.isFalse(a.hashCode == c.hashCode);
-  }
-
-  // magnitude
-  {
-    var a = new Point(5, 10);
-    var b = new Point(0, 0);
-    Expect.equals(a.distanceTo(b), a.magnitude);
-    Expect.equals(0, b.magnitude);
-
-    var c = new Point(-5, -10);
-    Expect.equals(a.distanceTo(b), c.magnitude);
-  }
-}
diff --git a/tests/lib_2/math/random_big_test.dart b/tests/lib_2/math/random_big_test.dart
deleted file mode 100644
index 826980c98e7..00000000000
--- a/tests/lib_2/math/random_big_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that Random can deal with a seed at upper end of 64-bit range.
-
-import "package:expect/expect.dart";
-import 'dart:math';
-
-main() {
-  var results = [];
-  for (var i = 60; i < 64; i++) {
-    var rng = new Random(pow(2, i) as int);
-    var val = rng.nextInt(100000);
-    print("$i: $val");
-    Expect.isFalse(results.contains(val));
-    results.add(val);
-  }
-}
diff --git a/tests/lib_2/math/random_secure_test.dart b/tests/lib_2/math/random_secure_test.dart
deleted file mode 100644
index c8f4cc9f5d6..00000000000
--- a/tests/lib_2/math/random_secure_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that the secure random generator does not systematically generates
-// duplicates. Note that this test is flaky by definition, since duplicates
-// can occur. They should be extremely rare, though.
-
-import "package:expect/expect.dart";
-import 'dart:math';
-
-main() {
-  var results;
-  var rng0;
-  var rng1;
-  var checkInt = (max) {
-    var intVal0 = rng0.nextInt(max);
-    var intVal1 = rng1.nextInt(max);
-    if (max > (1 << 28)) {
-      Expect.isFalse(results.contains(intVal0));
-      results.add(intVal0);
-      Expect.isFalse(results.contains(intVal1));
-      results.add(intVal1);
-    }
-  };
-  results = [];
-  rng0 = new Random.secure();
-  for (var i = 0; i <= 32; i++) {
-    rng1 = new Random.secure();
-    checkInt(pow(2, 32));
-    checkInt(pow(2, 32 - i));
-    checkInt(1000000000);
-  }
-  var checkDouble = () {
-    var doubleVal0 = rng0.nextDouble();
-    var doubleVal1 = rng1.nextDouble();
-    Expect.isFalse(results.contains(doubleVal0));
-    results.add(doubleVal0);
-    Expect.isFalse(results.contains(doubleVal1));
-    results.add(doubleVal1);
-  };
-  results = [];
-  rng0 = new Random.secure();
-  for (var i = 0; i < 32; i++) {
-    rng1 = new Random.secure();
-    checkDouble();
-  }
-  var cnt0 = 0;
-  var cnt1 = 0;
-  rng0 = new Random.secure();
-  for (var i = 0; i < 32; i++) {
-    rng1 = new Random.secure();
-    cnt0 += rng0.nextBool() ? 1 : 0;
-    cnt1 += rng1.nextBool() ? 1 : 0;
-  }
-  Expect.isTrue((cnt0 > 0) && (cnt0 < 32));
-  Expect.isTrue((cnt1 > 0) && (cnt1 < 32));
-}
diff --git a/tests/lib_2/math/random_secure_unsupported_test.dart b/tests/lib_2/math/random_secure_unsupported_test.dart
deleted file mode 100644
index a408096cb67..00000000000
--- a/tests/lib_2/math/random_secure_unsupported_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that `Random.secure()` throws `UnsupportedError` each time it fails.
-
-import "package:expect/expect.dart";
-import 'dart:math';
-
-main() {
-  var result1 = getRandom();
-  var result2 = getRandom();
-
-  Expect.isNotNull(result1);
-  Expect.isNotNull(result2); // This fired for http://dartbug.com/36206
-
-  Expect.equals(result1 is Random, result2 is Random);
-  Expect.equals(result1 is UnsupportedError, result2 is UnsupportedError);
-}
-
-dynamic getRandom() {
-  try {
-    return Random.secure();
-  } catch (e) {
-    return e;
-  }
-}
diff --git a/tests/lib_2/math/random_test.dart b/tests/lib_2/math/random_test.dart
deleted file mode 100644
index 4c36c178652..00000000000
--- a/tests/lib_2/math/random_test.dart
+++ /dev/null
@@ -1,241 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that rnd.nextInt with a seed generates the same sequence each time.
-
-// Library tag to allow Dartium to run the test.
-library random_test;
-
-import "package:expect/expect.dart";
-import 'dart:math';
-
-main() {
-  checkSequence();
-  checkSeed();
-}
-
-void checkSequence() {
-  // Check the sequence of numbers generated by the random generator for a seed
-  // doesn't change unintendedly, and it agrees between implementations.
-  var rnd = new Random(20130307);
-  // Make sure we do not break the random number generation.
-  // If the random algorithm changes, make sure both the VM and dart2js
-  // generate the same new sequence.
-  var i = 1;
-  Expect.equals(0, rnd.nextInt(i *= 2));
-  Expect.equals(3, rnd.nextInt(i *= 2));
-  Expect.equals(7, rnd.nextInt(i *= 2));
-  Expect.equals(5, rnd.nextInt(i *= 2));
-  Expect.equals(29, rnd.nextInt(i *= 2));
-  Expect.equals(17, rnd.nextInt(i *= 2));
-  Expect.equals(104, rnd.nextInt(i *= 2));
-  Expect.equals(199, rnd.nextInt(i *= 2));
-  Expect.equals(408, rnd.nextInt(i *= 2));
-  Expect.equals(362, rnd.nextInt(i *= 2));
-  Expect.equals(995, rnd.nextInt(i *= 2));
-  Expect.equals(2561, rnd.nextInt(i *= 2));
-  Expect.equals(2548, rnd.nextInt(i *= 2));
-  Expect.equals(9553, rnd.nextInt(i *= 2));
-  Expect.equals(2628, rnd.nextInt(i *= 2));
-  Expect.equals(42376, rnd.nextInt(i *= 2));
-  Expect.equals(101848, rnd.nextInt(i *= 2));
-  Expect.equals(85153, rnd.nextInt(i *= 2));
-  Expect.equals(495595, rnd.nextInt(i *= 2));
-  Expect.equals(647122, rnd.nextInt(i *= 2));
-  Expect.equals(793546, rnd.nextInt(i *= 2));
-  Expect.equals(1073343, rnd.nextInt(i *= 2));
-  Expect.equals(4479969, rnd.nextInt(i *= 2));
-  Expect.equals(9680425, rnd.nextInt(i *= 2));
-  Expect.equals(28460171, rnd.nextInt(i *= 2));
-  Expect.equals(49481738, rnd.nextInt(i *= 2));
-  Expect.equals(9878974, rnd.nextInt(i *= 2));
-  Expect.equals(132552472, rnd.nextInt(i *= 2));
-  Expect.equals(210267283, rnd.nextInt(i *= 2));
-  Expect.equals(125422442, rnd.nextInt(i *= 2));
-  Expect.equals(226275094, rnd.nextInt(i *= 2));
-  Expect.equals(1639629168, rnd.nextInt(i *= 2));
-  Expect.equals(0x100000000, i);
-  // If max is too large expect an ArgumentError.
-  Expect.throwsArgumentError(() => rnd.nextInt(i + 1));
-
-  rnd = new Random(6790);
-  Expect.approxEquals(0.1202733131, rnd.nextDouble());
-  Expect.approxEquals(0.5554054805, rnd.nextDouble());
-  Expect.approxEquals(0.0385160727, rnd.nextDouble());
-  Expect.approxEquals(0.2836345217, rnd.nextDouble());
-}
-
-void checkSeed() {
-  // Check that various seeds generate the expected first values.
-  // 53 significant bits, so the number is representable in JS.
-  var rawSeed = 0x19a32c640e1d71;
-  var expectations = [
-    26007,
-    43006,
-    46458,
-    18610,
-    16413,
-    50455,
-    2164,
-    47399,
-    8859,
-    9732,
-    20367,
-    33935,
-    54549,
-    54913,
-    4819,
-    24198,
-    49353,
-    22277,
-    51852,
-    35959,
-    45347,
-    12100,
-    10136,
-    22372,
-    15293,
-    20066,
-    1351,
-    49030,
-    64845,
-    12793,
-    50916,
-    55784,
-    43170,
-    27653,
-    34696,
-    1492,
-    50255,
-    9597,
-    45929,
-    2874,
-    27629,
-    53084,
-    36064,
-    42140,
-    32016,
-    41751,
-    13967,
-    20516,
-    578,
-    16773,
-    53064,
-    14814,
-    22737,
-    48846,
-    45147,
-    10205,
-    56584,
-    63711,
-    44128,
-    21099,
-    47966,
-    35471,
-    39576,
-    1141,
-    45716,
-    54940,
-    57406,
-    15437,
-    31721,
-    35044,
-    28136,
-    39797,
-    50801,
-    22184,
-    58686
-  ];
-  var negative_seed_expectations = [
-    12170,
-    42844,
-    39228,
-    64032,
-    29046,
-    57572,
-    8453,
-    52224,
-    27060,
-    28454,
-    20510,
-    28804,
-    59221,
-    53422,
-    11047,
-    50864,
-    33997,
-    19611,
-    1250,
-    65088,
-    19690,
-    11396,
-    20,
-    48867,
-    44862,
-    47129,
-    58724,
-    13325,
-    50005,
-    33320,
-    16523,
-    4740,
-    63721,
-    63272,
-    30545,
-    51403,
-    35845,
-    3943,
-    31850,
-    23148,
-    26307,
-    1724,
-    29281,
-    39988,
-    43653,
-    48012,
-    43810,
-    16755,
-    13105,
-    25325,
-    32648,
-    19958,
-    38838,
-    8322,
-    3421,
-    28624,
-    17269,
-    45385,
-    50680,
-    1696,
-    26088,
-    2787,
-    48566,
-    34357,
-    27731,
-    51764,
-    8455,
-    16498,
-    59721,
-    59568,
-    46333,
-    7935,
-    51459,
-    36766,
-    50711
-  ];
-  for (var i = 0, m = 1; i < 75; i++) {
-    if (rawSeed * m < 0) {
-      // Overflow.
-      break;
-    }
-    Expect.equals(expectations[i], new Random(rawSeed * m).nextInt(65536));
-    Expect.equals(
-        negative_seed_expectations[i], new Random(rawSeed * -m).nextInt(65536));
-    m *= 2;
-  }
-  // And test zero seed too.
-  Expect.equals(21391, new Random(0).nextInt(65536));
-}
diff --git a/tests/lib_2/math/rectangle_test.dart b/tests/lib_2/math/rectangle_test.dart
deleted file mode 100644
index 296cb4123b8..00000000000
--- a/tests/lib_2/math/rectangle_test.dart
+++ /dev/null
@@ -1,294 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:math';
-import 'package:expect/expect.dart';
-
-main() {
-  testConstruction();
-  testIntersection();
-  testIntersects();
-  testBoundingBox();
-  testContainsRectangle();
-  testContainsPoint();
-  testHashCode();
-  testEdgeCases();
-  testEquality();
-  testNegativeLengths();
-  testNaNLeft();
-  testNaNTop();
-  testNaNWidth();
-  testNaNHeight();
-}
-
-Rectangle createRectangle(List<num> a) =>
-    a != null ? Rectangle(a[0], a[1], a[2] - a[0], a[3] - a[1]) : null;
-
-testConstruction() {
-  var r0 = Rectangle(10, 20, 30, 40);
-  Expect.equals('Rectangle (10, 20) 30 x 40', r0.toString());
-  Expect.equals(40, r0.right);
-  Expect.equals(60, r0.bottom);
-
-  var r1 = Rectangle.fromPoints(r0.topLeft, r0.bottomRight);
-  Expect.equals(r0, r1);
-
-  var r2 = Rectangle.fromPoints(r0.bottomRight, r0.topLeft);
-  Expect.equals(r0, r2);
-}
-
-testIntersection() {
-  var tests = [
-    [
-      [10, 10, 20, 20],
-      [15, 15, 25, 25],
-      [15, 15, 20, 20]
-    ],
-    [
-      [10, 10, 20, 20],
-      [20, 0, 30, 10],
-      [20, 10, 20, 10]
-    ],
-    [
-      [0, 0, 1, 1],
-      [10, 11, 12, 13],
-      null
-    ],
-    [
-      [11, 12, 98, 99],
-      [22, 23, 34, 35],
-      [22, 23, 34, 35]
-    ]
-  ];
-
-  for (var test in tests) {
-    var r0 = createRectangle(test[0]);
-    var r1 = createRectangle(test[1]);
-    var expected = createRectangle(test[2]);
-
-    Expect.equals(expected, r0.intersection(r1));
-    Expect.equals(expected, r1.intersection(r0));
-  }
-}
-
-testIntersects() {
-  var r0 = Rectangle(10, 10, 20, 20);
-  var r1 = Rectangle(15, 15, 25, 25);
-  var r2 = Rectangle(0, 0, 1, 1);
-
-  Expect.isTrue(r0.intersects(r1));
-  Expect.isTrue(r1.intersects(r0));
-
-  Expect.isFalse(r0.intersects(r2));
-  Expect.isFalse(r2.intersects(r0));
-}
-
-testBoundingBox() {
-  var tests = [
-    [
-      [10, 10, 20, 20],
-      [15, 15, 25, 25],
-      [10, 10, 25, 25]
-    ],
-    [
-      [10, 10, 20, 20],
-      [20, 0, 30, 10],
-      [10, 0, 30, 20]
-    ],
-    [
-      [0, 0, 1, 1],
-      [10, 11, 12, 13],
-      [0, 0, 12, 13]
-    ],
-    [
-      [11, 12, 98, 99],
-      [22, 23, 34, 35],
-      [11, 12, 98, 99]
-    ]
-  ];
-
-  for (var test in tests) {
-    var r0 = createRectangle(test[0]);
-    var r1 = createRectangle(test[1]);
-    var expected = createRectangle(test[2]);
-
-    Expect.equals(expected, r0.boundingBox(r1));
-    Expect.equals(expected, r1.boundingBox(r0));
-  }
-}
-
-testContainsRectangle() {
-  var r = Rectangle(-10, 0, 20, 10);
-  Expect.isTrue(r.containsRectangle(r));
-
-  Expect.isFalse(r.containsRectangle(
-      Rectangle(double.nan, double.nan, double.nan, double.nan)));
-
-  var r2 = Rectangle(0, 2, 5, 5);
-  Expect.isTrue(r.containsRectangle(r2));
-  Expect.isFalse(r2.containsRectangle(r));
-
-  r2 = Rectangle(-11, 2, 5, 5);
-  Expect.isFalse(r.containsRectangle(r2));
-  r2 = Rectangle(0, 2, 15, 5);
-  Expect.isFalse(r.containsRectangle(r2));
-  r2 = Rectangle(0, 2, 5, 10);
-  Expect.isFalse(r.containsRectangle(r2));
-  r2 = Rectangle(0, 0, 5, 10);
-  Expect.isTrue(r.containsRectangle(r2));
-}
-
-testContainsPoint() {
-  var r = Rectangle(20, 40, 60, 80);
-
-  // Test middle.
-  Expect.isTrue(r.containsPoint(Point(50, 80)));
-
-  // Test edges.
-  Expect.isTrue(r.containsPoint(Point(20, 40)));
-  Expect.isTrue(r.containsPoint(Point(50, 40)));
-  Expect.isTrue(r.containsPoint(Point(80, 40)));
-  Expect.isTrue(r.containsPoint(Point(80, 80)));
-  Expect.isTrue(r.containsPoint(Point(80, 120)));
-  Expect.isTrue(r.containsPoint(Point(50, 120)));
-  Expect.isTrue(r.containsPoint(Point(20, 120)));
-  Expect.isTrue(r.containsPoint(Point(20, 80)));
-
-  // Test outside.
-  Expect.isFalse(r.containsPoint(Point(0, 0)));
-  Expect.isFalse(r.containsPoint(Point(50, 0)));
-  Expect.isFalse(r.containsPoint(Point(100, 0)));
-  Expect.isFalse(r.containsPoint(Point(100, 80)));
-  Expect.isFalse(r.containsPoint(Point(100, 160)));
-  Expect.isFalse(r.containsPoint(Point(50, 160)));
-  Expect.isFalse(r.containsPoint(Point(0, 160)));
-  Expect.isFalse(r.containsPoint(Point(0, 80)));
-}
-
-testHashCode() {
-  var a = Rectangle(0, 1, 2, 3);
-  var b = Rectangle(0, 1, 2, 3);
-  Expect.equals(b.hashCode, a.hashCode);
-
-  var c = Rectangle(1, 0, 2, 3);
-  Expect.isFalse(a.hashCode == c.hashCode);
-}
-
-testEdgeCases() {
-  edgeTest(double a, double l) {
-    var r = Rectangle(a, a, l, l);
-    Expect.equals(r, r.boundingBox(r));
-    Expect.equals(r, r.intersection(r));
-  }
-
-  var bignum1 = 0x20000000000000 + 0.0;
-  var bignum2 = 0x20000000000002 + 0.0;
-  var bignum3 = 0x20000000000004 + 0.0;
-  edgeTest(1.0, bignum1);
-  edgeTest(1.0, bignum2);
-  edgeTest(1.0, bignum3);
-  edgeTest(bignum1, 1.0);
-  edgeTest(bignum2, 1.0);
-  edgeTest(bignum3, 1.0);
-}
-
-testEquality() {
-  var bignum = 0x80000000000008 + 0.0;
-  var r1 = Rectangle(bignum, bignum, 1.0, 1.0);
-  var r2 = Rectangle(bignum, bignum, 2.0, 2.0);
-  Expect.equals(r2, r1);
-  Expect.equals(r2.hashCode, r1.hashCode);
-  Expect.equals(r2.right, r1.right);
-  Expect.equals(r2.bottom, r1.bottom);
-  Expect.equals(1.0, r1.width);
-  Expect.equals(2.0, r2.width);
-}
-
-testNegativeLengths() {
-  // Constructor allows negative lengths, but clamps them to zero.
-  Expect.equals(Rectangle(4, 4, 0, 0), Rectangle(4, 4, -2, -2));
-  Expect.equals(Rectangle(4, 4, 0, 0), MutableRectangle(4, 4, -2, -2));
-
-  // Setters clamp negative lengths to zero.
-  var mutable = MutableRectangle(0, 0, 1, 1);
-  mutable.width = -1;
-  mutable.height = -1;
-  Expect.equals(Rectangle(0, 0, 0, 0), mutable);
-
-  // Test that doubles are clamped to double zero.
-  var rectangle = Rectangle(1.5, 1.5, -2.5, -2.5);
-  Expect.isTrue(identical(rectangle.width, 0.0));
-  Expect.isTrue(identical(rectangle.height, 0.0));
-
-  var inf = double.infinity;
-  rectangle = Rectangle(1.5, 1.5, -inf, -inf);
-  Expect.isTrue(identical(rectangle.width, 0.0));
-  Expect.isTrue(identical(rectangle.height, 0.0));
-}
-
-testNaNLeft() {
-  var rectangles = [
-    const Rectangle(double.nan, 1, 2, 3),
-    MutableRectangle(double.nan, 1, 2, 3),
-    Rectangle.fromPoints(Point(double.nan, 1), Point(2, 4)),
-    MutableRectangle.fromPoints(Point(double.nan, 1), Point(2, 4)),
-  ];
-  for (var r in rectangles) {
-    Expect.isFalse(r.containsPoint(Point(0, 1)));
-    Expect.isFalse(r.containsRectangle(Rectangle(0, 1, 2, 3)));
-    Expect.isFalse(r.intersects(Rectangle(0, 1, 2, 3)));
-    Expect.isTrue(r.left.isNaN);
-    Expect.isTrue(r.right.isNaN);
-  }
-}
-
-testNaNTop() {
-  var rectangles = [
-    const Rectangle(0, double.nan, 2, 3),
-    MutableRectangle(0, double.nan, 2, 3),
-    Rectangle.fromPoints(Point(0, double.nan), Point(2, 4)),
-    MutableRectangle.fromPoints(Point(0, double.nan), Point(2, 4)),
-  ];
-  for (var r in rectangles) {
-    Expect.isFalse(r.containsPoint(Point(0, 1)));
-    Expect.isFalse(r.containsRectangle(Rectangle(0, 1, 2, 3)));
-    Expect.isFalse(r.intersects(Rectangle(0, 1, 2, 3)));
-    Expect.isTrue(r.top.isNaN);
-    Expect.isTrue(r.bottom.isNaN);
-  }
-}
-
-testNaNWidth() {
-  var rectangles = [
-    const Rectangle(0, 1, double.nan, 3),
-    MutableRectangle(0, 1, double.nan, 3),
-    Rectangle.fromPoints(Point(0, 1), Point(double.nan, 4)),
-    MutableRectangle.fromPoints(Point(0, 1), Point(double.nan, 4)),
-  ];
-  for (var r in rectangles) {
-    Expect.isFalse(r.containsPoint(Point(0, 1)));
-    Expect.isFalse(r.containsRectangle(Rectangle(0, 1, 2, 3)));
-    Expect.isFalse(r.intersects(Rectangle(0, 1, 2, 3)));
-    Expect.isTrue(r.right.isNaN);
-    Expect.isTrue(r.width.isNaN);
-  }
-}
-
-testNaNHeight() {
-  var rectangles = [
-    const Rectangle(0, 1, 2, double.nan),
-    MutableRectangle(0, 1, 2, double.nan),
-    Rectangle.fromPoints(Point(0, 1), Point(2, double.nan)),
-    MutableRectangle.fromPoints(Point(0, 1), Point(2, double.nan)),
-  ];
-  for (var r in rectangles) {
-    Expect.isFalse(r.containsPoint(Point(0, 1)));
-    Expect.isFalse(r.containsRectangle(Rectangle(0, 1, 2, 3)));
-    Expect.isFalse(r.intersects(Rectangle(0, 1, 2, 3)));
-    Expect.isTrue(r.bottom.isNaN);
-    Expect.isTrue(r.height.isNaN);
-  }
-}
diff --git a/tests/lib_2/mirrors/abstract_class_test.dart b/tests/lib_2/mirrors/abstract_class_test.dart
deleted file mode 100644
index 529ba51cd99..00000000000
--- a/tests/lib_2/mirrors/abstract_class_test.dart
+++ /dev/null
@@ -1,176 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.abstract_class_test;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-void main() {
-  testSimple();
-  testFunctionType();
-  testFakeFunction();
-  testGeneric();
-  testAnonMixinApplication();
-  testNamedMixinApplication();
-}
-
-abstract class Foo {
-  foo();
-}
-
-class Bar extends Foo {
-  foo() {}
-}
-
-testSimple() {
-  Expect.isTrue(reflectClass(Foo).isAbstract);
-  Expect.isFalse(reflectClass(Bar).isAbstract);
-  Expect.isTrue(reflect(new Bar()).type.superclass.isAbstract);
-  Expect.isFalse(reflect(new Bar()).type.isAbstract);
-}
-
-void baz() {}
-
-testFunctionType() {
-  Expect.isFalse(reflect(baz).type.isAbstract);
-}
-
-abstract class FunctionFoo implements Function {
-  call();
-}
-
-class FunctionBar extends FunctionFoo {
-  call() {}
-}
-
-testFakeFunction() {
-  Expect.isTrue(reflectClass(FunctionFoo).isAbstract);
-  Expect.isFalse(reflectClass(FunctionBar).isAbstract);
-  Expect.isTrue(reflect(new FunctionBar()).type.superclass.isAbstract);
-  Expect.isFalse(reflect(new FunctionBar()).type.isAbstract);
-}
-
-abstract class GenericFoo<T> {
-  T genericFoo();
-}
-
-class GenericBar<T> extends GenericFoo<T> {
-  T genericFoo() {}
-}
-
-testGeneric() {
-  // Unbound.
-  Expect.isTrue(reflectClass(GenericFoo).isAbstract);
-  Expect.isFalse(reflectClass(GenericBar).isAbstract);
-  // Bound.
-  Expect.isTrue(reflect(new GenericBar<int>()).type.superclass.isAbstract);
-  Expect.isFalse(reflect(new GenericBar<int>()).type.isAbstract);
-}
-
-class S {}
-
-abstract class M {
-  mixinFoo();
-}
-
-abstract class MA extends S with M {}
-
-class SubMA extends MA {
-  mixinFoo() {}
-}
-
-class ConcreteMA extends S with M {
-  mixinFoo() {}
-}
-
-class M2 {
-  mixin2Foo() {}
-}
-
-abstract class MA2 extends S with M2 {
-  mixinBar();
-}
-
-class SubMA2 extends MA2 {
-  mixinBar() {}
-}
-
-class ConcreteMA2 extends S with M2 {
-  mixin2Foo() {}
-}
-
-testAnonMixinApplication() {
-  // Application is abstract.
-  {
-    // Mixin is abstract.
-    Expect.isFalse(reflectClass(SubMA).isAbstract);
-    Expect.isTrue(reflectClass(SubMA).superclass.isAbstract);
-    Expect.isTrue(reflectClass(SubMA).superclass.superclass.isAbstract);
-    Expect.isTrue(reflectClass(MA).isAbstract);
-    Expect.isTrue(reflectClass(MA).superclass.isAbstract);
-
-    // Mixin is concrete.
-    Expect.isFalse(reflectClass(SubMA2).isAbstract);
-    Expect.isTrue(reflectClass(SubMA2).superclass.isAbstract);
-    Expect.isTrue(reflectClass(SubMA2).superclass.superclass.isAbstract);
-    Expect.isTrue(reflectClass(MA2).isAbstract);
-    Expect.isTrue(reflectClass(MA2).superclass.isAbstract);
-  }
-
-  // Application is concrete.
-  {
-    // Mixin is abstract.
-    Expect.isFalse(reflectClass(ConcreteMA).isAbstract);
-    Expect.isTrue(reflectClass(ConcreteMA).superclass.isAbstract);
-    Expect.isFalse(reflectClass(ConcreteMA).superclass.superclass.isAbstract);
-
-    // Mixin is concrete.
-    Expect.isFalse(reflectClass(ConcreteMA2).isAbstract);
-    Expect.isTrue(reflectClass(ConcreteMA2).superclass.isAbstract);
-    Expect.isFalse(reflectClass(ConcreteMA2).superclass.superclass.isAbstract);
-  }
-}
-
-abstract class NamedMA = S with M;
-
-class SubNamedMA extends NamedMA {
-  mixinFoo() {}
-}
-
-abstract class NamedMA2 = S with M2;
-
-class SubNamedMA2 extends NamedMA2 {
-  mixinFoo() {}
-}
-
-class ConcreteNamedMA2 = S with M2;
-
-testNamedMixinApplication() {
-  // Application is abstract.
-  {
-    // Mixin is abstract.
-    Expect.isFalse(reflectClass(SubNamedMA).isAbstract);
-    Expect.isTrue(reflectClass(SubNamedMA).superclass.isAbstract);
-    Expect.isFalse(reflectClass(SubNamedMA).superclass.superclass.isAbstract);
-    Expect.isTrue(reflectClass(NamedMA).isAbstract);
-    Expect.isFalse(reflectClass(NamedMA).superclass.isAbstract);
-
-    // Mixin is concrete.
-    Expect.isFalse(reflectClass(SubNamedMA2).isAbstract);
-    Expect.isTrue(reflectClass(SubNamedMA2).superclass.isAbstract);
-    Expect.isFalse(reflectClass(SubNamedMA2).superclass.superclass.isAbstract);
-    Expect.isTrue(reflectClass(NamedMA2).isAbstract);
-    Expect.isFalse(reflectClass(NamedMA2).superclass.isAbstract);
-  }
-
-  // Application is concrete.
-  {
-    // Mixin is concrete.
-    Expect.isFalse(reflectClass(ConcreteNamedMA2).isAbstract);
-    Expect.isFalse(reflectClass(ConcreteNamedMA2).superclass.isAbstract);
-  }
-}
diff --git a/tests/lib_2/mirrors/abstract_test.dart b/tests/lib_2/mirrors/abstract_test.dart
deleted file mode 100644
index 96cd5b09cca..00000000000
--- a/tests/lib_2/mirrors/abstract_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test abstract classes are retained.
-
-library test.abstract_test;
-
-import 'dart:mirrors';
-
-import 'stringify.dart';
-
-abstract class Foo {}
-
-void main() {
-  expect(
-      'Class(s(Foo) in s(test.abstract_test), top-level)', reflectClass(Foo));
-}
diff --git a/tests/lib_2/mirrors/accessor_cache_overflow_test.dart b/tests/lib_2/mirrors/accessor_cache_overflow_test.dart
deleted file mode 100644
index 72adbcb2688..00000000000
--- a/tests/lib_2/mirrors/accessor_cache_overflow_test.dart
+++ /dev/null
@@ -1,310 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test runs invokes getField and setField enough times to get cached
-// closures generated and with enough different field names to trip the path
-// that flushes the closure cache.
-
-library test.hot_get_field;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-const int optimizationThreshold = 20;
-
-main() {
-  var digits = [
-    '0',
-    '1',
-    '2',
-    '3',
-    '4',
-    '5',
-    '6',
-    '7',
-    '8',
-    '9',
-    'A',
-    'B',
-    'C',
-    'D',
-    'E',
-    'F'
-  ];
-  var symbols = [];
-  for (var high in digits) {
-    for (var low in digits) {
-      symbols.add(MirrorSystem.getSymbol("v$high$low"));
-    }
-  }
-
-  var im = reflect(new C());
-  for (var i = 0; i < optimizationThreshold * 2; i++) {
-    for (var fieldName in symbols) {
-      im.getField(fieldName);
-      im.setField(fieldName, 'foo');
-    }
-  }
-}
-
-class C {
-  var v00;
-  var v01;
-  var v02;
-  var v03;
-  var v04;
-  var v05;
-  var v06;
-  var v07;
-  var v08;
-  var v09;
-  var v0A;
-  var v0B;
-  var v0C;
-  var v0D;
-  var v0E;
-  var v0F;
-  var v10;
-  var v11;
-  var v12;
-  var v13;
-  var v14;
-  var v15;
-  var v16;
-  var v17;
-  var v18;
-  var v19;
-  var v1A;
-  var v1B;
-  var v1C;
-  var v1D;
-  var v1E;
-  var v1F;
-  var v20;
-  var v21;
-  var v22;
-  var v23;
-  var v24;
-  var v25;
-  var v26;
-  var v27;
-  var v28;
-  var v29;
-  var v2A;
-  var v2B;
-  var v2C;
-  var v2D;
-  var v2E;
-  var v2F;
-  var v30;
-  var v31;
-  var v32;
-  var v33;
-  var v34;
-  var v35;
-  var v36;
-  var v37;
-  var v38;
-  var v39;
-  var v3A;
-  var v3B;
-  var v3C;
-  var v3D;
-  var v3E;
-  var v3F;
-  var v40;
-  var v41;
-  var v42;
-  var v43;
-  var v44;
-  var v45;
-  var v46;
-  var v47;
-  var v48;
-  var v49;
-  var v4A;
-  var v4B;
-  var v4C;
-  var v4D;
-  var v4E;
-  var v4F;
-  var v50;
-  var v51;
-  var v52;
-  var v53;
-  var v54;
-  var v55;
-  var v56;
-  var v57;
-  var v58;
-  var v59;
-  var v5A;
-  var v5B;
-  var v5C;
-  var v5D;
-  var v5E;
-  var v5F;
-  var v60;
-  var v61;
-  var v62;
-  var v63;
-  var v64;
-  var v65;
-  var v66;
-  var v67;
-  var v68;
-  var v69;
-  var v6A;
-  var v6B;
-  var v6C;
-  var v6D;
-  var v6E;
-  var v6F;
-  var v70;
-  var v71;
-  var v72;
-  var v73;
-  var v74;
-  var v75;
-  var v76;
-  var v77;
-  var v78;
-  var v79;
-  var v7A;
-  var v7B;
-  var v7C;
-  var v7D;
-  var v7E;
-  var v7F;
-  var v80;
-  var v81;
-  var v82;
-  var v83;
-  var v84;
-  var v85;
-  var v86;
-  var v87;
-  var v88;
-  var v89;
-  var v8A;
-  var v8B;
-  var v8C;
-  var v8D;
-  var v8E;
-  var v8F;
-  var v90;
-  var v91;
-  var v92;
-  var v93;
-  var v94;
-  var v95;
-  var v96;
-  var v97;
-  var v98;
-  var v99;
-  var v9A;
-  var v9B;
-  var v9C;
-  var v9D;
-  var v9E;
-  var v9F;
-  var vA0;
-  var vA1;
-  var vA2;
-  var vA3;
-  var vA4;
-  var vA5;
-  var vA6;
-  var vA7;
-  var vA8;
-  var vA9;
-  var vAA;
-  var vAB;
-  var vAC;
-  var vAD;
-  var vAE;
-  var vAF;
-  var vB0;
-  var vB1;
-  var vB2;
-  var vB3;
-  var vB4;
-  var vB5;
-  var vB6;
-  var vB7;
-  var vB8;
-  var vB9;
-  var vBA;
-  var vBB;
-  var vBC;
-  var vBD;
-  var vBE;
-  var vBF;
-  var vC0;
-  var vC1;
-  var vC2;
-  var vC3;
-  var vC4;
-  var vC5;
-  var vC6;
-  var vC7;
-  var vC8;
-  var vC9;
-  var vCA;
-  var vCB;
-  var vCC;
-  var vCD;
-  var vCE;
-  var vCF;
-  var vD0;
-  var vD1;
-  var vD2;
-  var vD3;
-  var vD4;
-  var vD5;
-  var vD6;
-  var vD7;
-  var vD8;
-  var vD9;
-  var vDA;
-  var vDB;
-  var vDC;
-  var vDD;
-  var vDE;
-  var vDF;
-  var vE0;
-  var vE1;
-  var vE2;
-  var vE3;
-  var vE4;
-  var vE5;
-  var vE6;
-  var vE7;
-  var vE8;
-  var vE9;
-  var vEA;
-  var vEB;
-  var vEC;
-  var vED;
-  var vEE;
-  var vEF;
-  var vF0;
-  var vF1;
-  var vF2;
-  var vF3;
-  var vF4;
-  var vF5;
-  var vF6;
-  var vF7;
-  var vF8;
-  var vF9;
-  var vFA;
-  var vFB;
-  var vFC;
-  var vFD;
-  var vFE;
-  var vFF;
-}
diff --git a/tests/lib_2/mirrors/apply3_test.dart b/tests/lib_2/mirrors/apply3_test.dart
deleted file mode 100644
index 928171d6759..00000000000
--- a/tests/lib_2/mirrors/apply3_test.dart
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test [Function.apply] on user-defined classes that implement [noSuchMethod].
-
-import "package:expect/expect.dart";
-import 'dart:mirrors';
-
-class F {
-  call([p1]) => "call";
-  noSuchMethod(Invocation invocation) => "NSM";
-}
-
-class G {
-  call() => '42';
-  noSuchMethod(Invocation invocation) => invocation;
-}
-
-class H {
-  call(required, {a}) => required + a;
-}
-
-main() {
-  Expect.equals('call', Function.apply(new F(), []));
-  Expect.equals('call', Function.apply(new F(), [1]));
-  Expect.equals('NSM', Function.apply(new F(), [1, 2]));
-  Expect.equals('NSM', Function.apply(new F(), [1, 2, 3]));
-
-  var symbol = const Symbol('a');
-  var requiredParameters = [1];
-  var optionalParameters = new Map<Symbol, int>()..[symbol] = 42;
-  Invocation i =
-      Function.apply(new G(), requiredParameters, optionalParameters);
-
-  Expect.equals(const Symbol('call'), i.memberName);
-  Expect.listEquals(requiredParameters, i.positionalArguments);
-  Expect.mapEquals(optionalParameters, i.namedArguments);
-  Expect.isTrue(i.isMethod);
-  Expect.isFalse(i.isGetter);
-  Expect.isFalse(i.isSetter);
-  Expect.isFalse(i.isAccessor);
-
-  // Check that changing the passed list and map for parameters does
-  // not affect [i].
-  requiredParameters[0] = 42;
-  optionalParameters[symbol] = 12;
-  Expect.listEquals([1], i.positionalArguments);
-  Expect.mapEquals(new Map()..[symbol] = 42, i.namedArguments);
-
-  // Check that using [i] for invocation yields the same [Invocation]
-  // object.
-  var mirror = reflect(new G());
-  Invocation other = mirror.delegate(i);
-  Expect.equals(i.memberName, other.memberName);
-  Expect.listEquals(i.positionalArguments, other.positionalArguments);
-  Expect.mapEquals(i.namedArguments, other.namedArguments);
-  Expect.equals(i.isMethod, other.isMethod);
-  Expect.equals(i.isGetter, other.isGetter);
-  Expect.equals(i.isSetter, other.isSetter);
-  Expect.equals(i.isAccessor, other.isAccessor);
-
-  // Test that [i] can be used to hit an existing method.
-  Expect.equals(43, new H().call(1, a: 42));
-  Expect.equals(43, Function.apply(new H(), [1], new Map()..[symbol] = 42));
-  mirror = reflect(new H());
-  Expect.equals(43, mirror.delegate(i));
-  Expect.equals(43, mirror.delegate(other));
-}
diff --git a/tests/lib_2/mirrors/array_tracing2_test.dart b/tests/lib_2/mirrors/array_tracing2_test.dart
deleted file mode 100644
index 9afc4cbe549..00000000000
--- a/tests/lib_2/mirrors/array_tracing2_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors';
-
-class A {
-  var field;
-}
-
-main() {
-  var a = new A();
-  var mirror = reflect(a);
-  var array = [42];
-  a.field = array;
-  var field = mirror.getField(#field);
-  field.invoke(#clear, []);
-  if (array.length == 1) throw 'Test failed';
-}
diff --git a/tests/lib_2/mirrors/array_tracing3_test.dart b/tests/lib_2/mirrors/array_tracing3_test.dart
deleted file mode 100644
index 94ceeb85ac4..00000000000
--- a/tests/lib_2/mirrors/array_tracing3_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors';
-
-class A {
-  static var field;
-}
-
-main() {
-  MirrorSystem mirrors = currentMirrorSystem();
-  ClassMirror a = reflectClass(A);
-  var array = [42];
-  A.field = array;
-  var field = a.getField(#field);
-  field.invoke(#clear, []);
-  if (array.length == 1) throw 'Test failed';
-}
diff --git a/tests/lib_2/mirrors/array_tracing_test.dart b/tests/lib_2/mirrors/array_tracing_test.dart
deleted file mode 100644
index 94ceeb85ac4..00000000000
--- a/tests/lib_2/mirrors/array_tracing_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors';
-
-class A {
-  static var field;
-}
-
-main() {
-  MirrorSystem mirrors = currentMirrorSystem();
-  ClassMirror a = reflectClass(A);
-  var array = [42];
-  A.field = array;
-  var field = a.getField(#field);
-  field.invoke(#clear, []);
-  if (array.length == 1) throw 'Test failed';
-}
diff --git a/tests/lib_2/mirrors/bad_argument_types_test.dart b/tests/lib_2/mirrors/bad_argument_types_test.dart
deleted file mode 100644
index d10b1d3d8a5..00000000000
--- a/tests/lib_2/mirrors/bad_argument_types_test.dart
+++ /dev/null
@@ -1,159 +0,0 @@
-// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:io';
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-int foobar = 1;
-
-set foobaz(int x) {
-  foobar = x;
-}
-
-void foo(Map<String, String> m) {
-  print(m);
-  print(m['bar']);
-}
-
-void bar<T extends num>(T a) {
-  print(a);
-}
-
-class Foo {
-  Map<String, String> bork;
-  static Map<String, String> bark;
-  static set woof(Map<String, String> x) {
-    bark = x;
-  }
-
-  Foo(Map<String, String> m) {
-    print(m);
-  }
-
-  Foo.a();
-
-  static void baz(Map<String, String> m, {String bar}) {
-    print('baz');
-    print(m['bar']);
-    print(bar);
-  }
-
-  void bar(Map<String, String> m) {
-    print('bar');
-    print(m.runtimeType);
-  }
-}
-
-class FooBar<T extends num> {
-  T bar;
-  FooBar(this.bar) {
-    print(bar);
-  }
-
-  set barz(T x) {
-    bar = x;
-  }
-
-  factory FooBar.baz(T bar) {
-    print(bar);
-    return FooBar(bar);
-  }
-
-  void foobar<S>(T a, S b) {
-    print(a);
-    print(b);
-  }
-}
-
-void badClassStaticInvoke() {
-  Map<String, String> map = Map<String, String>();
-  map['bar'] = 'Hello world!';
-  final cm = reflectClass(Foo);
-  Expect.throwsTypeError(() => cm.invoke(#baz, [
-        map
-      ], {
-        #bar: {'boo': 'bah'}
-      }));
-}
-
-void badStaticInvoke() {
-  final im = reflect(foo) as ClosureMirror;
-  Expect.throwsTypeError(() => im.apply(['Hello world!']));
-}
-
-void badInstanceInvoke() {
-  final fooCls = Foo.a();
-  final im = reflect(fooCls);
-  Expect.throwsTypeError(() => im.invoke(#bar, ['Hello World!']));
-}
-
-void badConstructorInvoke() {
-  final cm = reflectClass(Foo);
-  Expect.throwsTypeError(() => cm.newInstance(Symbol(''), ['Hello World!']));
-}
-
-void badSetterInvoke() {
-  final fooCls = Foo.a();
-  final im = reflect(fooCls);
-  Expect.throwsTypeError(() => im.setField(#bork, 'Hello World!'));
-}
-
-void badStaticSetterInvoke() {
-  final cm = reflectClass(Foo);
-  Expect.throwsTypeError(() => cm.setField(#bark, 'Hello World!'));
-  Expect.throwsTypeError(() => cm.setField(#woof, 'Hello World!'));
-}
-
-void badGenericConstructorInvoke() {
-  final cm = reflectType(FooBar, [int]) as ClassMirror;
-  Expect.throwsTypeError(() => cm.newInstance(Symbol(''), ['Hello World!']));
-}
-
-void badGenericClassStaticInvoke() {
-  final cm = reflectType(FooBar, [int]) as ClassMirror;
-  final im = cm.newInstance(Symbol(''), [1]);
-  Expect.throwsTypeError(() => im.invoke(#foobar, ['Hello', 'World']));
-}
-
-void badGenericFactoryInvoke() {
-  final cm = reflectType(FooBar, [int]) as ClassMirror;
-  Expect.throwsTypeError(() => cm.newInstance(Symbol('baz'), ['Hello World!']));
-}
-
-void badGenericStaticInvoke() {
-  final im = reflect(bar) as ClosureMirror;
-  Expect.throwsTypeError(() => im.apply(['Hello world!']));
-}
-
-void badGenericSetterInvoke() {
-  final cm = reflectType(FooBar, [int]) as ClassMirror;
-  final im = cm.newInstance(Symbol(''), [0]);
-  Expect.throwsTypeError(() => im.setField(#bar, 'Hello world!'));
-  Expect.throwsTypeError(() => im.setField(#barz, 'Hello world!'));
-}
-
-void badLibrarySetterInvoke() {
-  final lm = currentMirrorSystem().findLibrary(Symbol(''));
-  Expect.throwsTypeError(() => lm.setField(#foobar, 'Foobaz'));
-  Expect.throwsTypeError(() => lm.setField(#foobaz, 'Foobaz'));
-}
-
-void main() {
-  badClassStaticInvoke();
-  badStaticInvoke();
-  badInstanceInvoke();
-  badConstructorInvoke();
-  badSetterInvoke();
-  badStaticSetterInvoke();
-  badGenericConstructorInvoke();
-  badGenericClassStaticInvoke();
-  badGenericFactoryInvoke();
-  badGenericStaticInvoke();
-  badGenericSetterInvoke();
-  badLibrarySetterInvoke();
-}
diff --git a/tests/lib_2/mirrors/basic_types_in_dart_core_test.dart b/tests/lib_2/mirrors/basic_types_in_dart_core_test.dart
deleted file mode 100644
index 05c41db71b8..00000000000
--- a/tests/lib_2/mirrors/basic_types_in_dart_core_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.basic_types_in_dart_core;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-main() {
-  LibraryMirror dartcore = currentMirrorSystem().findLibrary(#dart.core);
-  ClassMirror cm;
-  TypeMirror tm;
-
-  cm = dartcore.declarations[#int] as ClassMirror;
-  Expect.equals(reflectClass(int), cm);
-  Expect.equals(#int, cm.simpleName);
-
-  cm = dartcore.declarations[#double] as ClassMirror;
-  Expect.equals(reflectClass(double), cm);
-  Expect.equals(#double, cm.simpleName);
-
-  cm = dartcore.declarations[#num] as ClassMirror;
-  Expect.equals(reflectClass(num), cm);
-  Expect.equals(#num, cm.simpleName);
-
-  cm = dartcore.declarations[#bool] as ClassMirror;
-  Expect.equals(reflectClass(bool), cm);
-  Expect.equals(#bool, cm.simpleName);
-
-  cm = dartcore.declarations[#String] as ClassMirror;
-  Expect.equals(reflectClass(String), cm);
-  Expect.equals(#String, cm.simpleName);
-
-  cm = dartcore.declarations[#List] as ClassMirror;
-  Expect.equals(reflectClass(List), cm);
-  Expect.equals(#List, cm.simpleName);
-
-  cm = dartcore.declarations[#Null] as ClassMirror;
-  Expect.equals(reflectClass(Null), cm);
-  Expect.equals(#Null, cm.simpleName);
-
-  cm = dartcore.declarations[#Object] as ClassMirror;
-  Expect.equals(reflectClass(Object), cm);
-  Expect.equals(#Object, cm.simpleName);
-
-  tm = dartcore.declarations[#dynamic] as TypeMirror;
-  Expect.isNull(tm);
-
-  tm = dartcore.declarations[const Symbol('void')] as TypeMirror;
-  Expect.isNull(tm);
-}
diff --git a/tests/lib_2/mirrors/circular_factory_redirection_test.dart b/tests/lib_2/mirrors/circular_factory_redirection_test.dart
deleted file mode 100644
index 66474c6a91e..00000000000
--- a/tests/lib_2/mirrors/circular_factory_redirection_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:mirrors";
-import "package:expect/expect.dart";
-
-class A {
-  A();
-  A.circular() = B.circular; // //# 01: compile-time error
-  const A.circular2() = B.circular2; // //# 02: compile-time error
-}
-
-class B {
-  B();
-  B.circular() = C.circular; // //# 01: continued
-  const B.circular2() = C.circular2; // //# 02: continued
-}
-
-class C {
-  C();
-  C.circular() = A.circular; // //# 01: continued
-  const C.circular2() = A.circular2; // //# 02: continued
-}
-
-main() {
-  ClassMirror cm = reflectClass(A);
-
-  new A.circular(); // //# 01: continued
-  new A.circular2(); // //# 02: continued
-
-  Expect.throwsNoSuchMethodError(
-      () => cm.newInstance(#circular, []),
-      'Should disallow circular redirection (non-const)');
-
-  Expect.throwsNoSuchMethodError(
-      () => cm.newInstance(#circular2, []),
-      'Should disallow circular redirection (const)');
-}
diff --git a/tests/lib_2/mirrors/class_declarations_test.dart b/tests/lib_2/mirrors/class_declarations_test.dart
deleted file mode 100644
index 29c1595e852..00000000000
--- a/tests/lib_2/mirrors/class_declarations_test.dart
+++ /dev/null
@@ -1,364 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.declarations_test;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-import 'stringify.dart';
-import 'declarations_model.dart' as declarations_model;
-
-/// Collects all declarations of [cm] and its super-classes except `Object`.
-///
-/// Includes static declarations of super-classes.
-///
-/// The `Object` class is omitted because this test should be stable against
-/// changes to the platform libraries, as long as the declaration model code
-/// doesn't change.
-Set<DeclarationMirror> transitiveDeclarations(ClassMirror cm) {
-  var decls = new Set<DeclarationMirror>();
-  while (cm != reflectClass(Object)) {
-    decls.addAll(cm.declarations.values);
-    cm = cm.superclass;
-  }
-  return decls;
-}
-
-main() {
-  ClassMirror cm = reflectClass(declarations_model.Class);
-
-  Expect.setEquals([
-    'Variable(s(_instanceVariable) in s(Class), private)',
-    'Variable(s(_staticVariable) in s(Class), private, static)',
-    'Variable(s(instanceVariable) in s(Class))',
-    'Variable(s(staticVariable) in s(Class), static)'
-  ], cm.declarations.values.where((dm) => dm is VariableMirror).map(stringify),
-      'variables');
-
-  Expect.setEquals(
-      [
-        'Method(s(_instanceGetter) in s(Class), private, getter)',
-        'Method(s(_staticGetter) in s(Class), private, static, getter)',
-        'Method(s(instanceGetter) in s(Class), getter)',
-        'Method(s(staticGetter) in s(Class), static, getter)'
-      ],
-      cm.declarations.values
-          .where((dm) => dm is MethodMirror && dm.isGetter)
-          .map(stringify),
-      'getters');
-
-  Expect.setEquals(
-      [
-        'Method(s(_instanceSetter=) in s(Class), private, setter)',
-        'Method(s(_staticSetter=) in s(Class), private, static, setter)',
-        'Method(s(instanceSetter=) in s(Class), setter)',
-        'Method(s(staticSetter=) in s(Class), static, setter)'
-      ],
-      cm.declarations.values
-          .where((dm) => dm is MethodMirror && dm.isSetter)
-          .map(stringify),
-      'setters');
-
-  // dart2js stops testing here.
-  return; //# 01: ok
-
-  Expect.setEquals(
-      [
-        'Method(s(+) in s(Class))',
-        'Method(s(_instanceMethod) in s(Class), private)',
-        'Method(s(_staticMethod) in s(Class), private, static)',
-        'Method(s(abstractMethod) in s(Class), abstract)',
-        'Method(s(instanceMethod) in s(Class))',
-        'Method(s(staticMethod) in s(Class), static)'
-      ],
-      cm.declarations.values
-          .where((dm) => dm is MethodMirror && dm.isRegularMethod)
-          .map(stringify),
-      'regular methods');
-
-  Expect.setEquals(
-      [
-        'Method(s(Class._generativeConstructor) in s(Class), private, constructor)',
-        'Method(s(Class._normalFactory) in s(Class), private, static, constructor)',
-        'Method(s(Class._redirectingConstructor)'
-            ' in s(Class), private, constructor)',
-        'Method(s(Class._redirectingFactory)'
-            ' in s(Class), private, static, constructor)',
-        'Method(s(Class.generativeConstructor) in s(Class), constructor)',
-        'Method(s(Class.normalFactory) in s(Class), static, constructor)',
-        'Method(s(Class.redirectingConstructor) in s(Class), constructor)',
-        'Method(s(Class.redirectingFactory) in s(Class), static, constructor)'
-      ],
-      cm.declarations.values
-          .where((dm) => dm is MethodMirror && dm.isConstructor)
-          .map(stringify),
-      'constructors and factories');
-
-  Expect.setEquals(
-      [
-        'Method(s(Class._normalFactory) in s(Class), private, static, constructor)',
-        'Method(s(Class._redirectingFactory)'
-            ' in s(Class), private, static, constructor)',
-        'Method(s(Class.normalFactory) in s(Class), static, constructor)',
-        'Method(s(Class.redirectingFactory) in s(Class), static, constructor)',
-        'Method(s(_staticGetter) in s(Class), private, static, getter)',
-        'Method(s(_staticMethod) in s(Class), private, static)',
-        'Method(s(_staticSetter=) in s(Class), private, static, setter)',
-        'Variable(s(_staticVariable) in s(Class), private, static)',
-        'Method(s(staticGetter) in s(Class), static, getter)',
-        'Method(s(staticMethod) in s(Class), static)',
-        'Method(s(staticSetter=) in s(Class), static, setter)',
-        'Variable(s(staticVariable) in s(Class), static)'
-      ],
-      cm.declarations.values
-          .where((dm) => (dm as dynamic).isStatic)
-          .map(stringify),
-      'statics');
-
-  Expect.setEquals(
-      [
-        'Method(s(+) in s(Class))',
-        'TypeVariable(s(C) in s(Class),'
-            ' upperBound = Class(s(Object) in s(dart.core), top-level))',
-        'Method(s(Class._generativeConstructor) in s(Class), private, constructor)',
-        'Method(s(Class._redirectingConstructor)'
-            ' in s(Class), private, constructor)',
-        'Method(s(Class.generativeConstructor) in s(Class), constructor)',
-        'Method(s(Class.redirectingConstructor) in s(Class), constructor)',
-        'Method(s(_instanceGetter) in s(Class), private, getter)',
-        'Method(s(_instanceMethod) in s(Class), private)',
-        'Method(s(_instanceSetter=) in s(Class), private, setter)',
-        'Variable(s(_instanceVariable) in s(Class), private)',
-        'Method(s(abstractMethod) in s(Class), abstract)',
-        'Method(s(instanceGetter) in s(Class), getter)',
-        'Method(s(instanceMethod) in s(Class))',
-        'Method(s(instanceSetter=) in s(Class), setter)',
-        'Variable(s(instanceVariable) in s(Class))'
-      ],
-      cm.declarations.values
-          .where((dm) => !(dm as dynamic).isStatic)
-          .map(stringify),
-      'non-statics');
-
-  Expect.setEquals(
-      [
-        'Method(s(+) in s(Class))',
-        'TypeVariable(s(C) in s(Class),'
-            ' upperBound = Class(s(Object) in s(dart.core), top-level))',
-        'Method(s(Class.generativeConstructor) in s(Class), constructor)',
-        'Method(s(Class.normalFactory) in s(Class), static, constructor)',
-        'Method(s(Class.redirectingConstructor) in s(Class), constructor)',
-        'Method(s(Class.redirectingFactory) in s(Class), static, constructor)',
-        'Method(s(abstractMethod) in s(Class), abstract)',
-        'Method(s(instanceGetter) in s(Class), getter)',
-        'Method(s(instanceMethod) in s(Class))',
-        'Method(s(instanceSetter=) in s(Class), setter)',
-        'Variable(s(instanceVariable) in s(Class))',
-        'Method(s(staticGetter) in s(Class), static, getter)',
-        'Method(s(staticMethod) in s(Class), static)',
-        'Method(s(staticSetter=) in s(Class), static, setter)',
-        'Variable(s(staticVariable) in s(Class), static)'
-      ],
-      cm.declarations.values
-          .where((dm) => !(dm as dynamic).isPrivate)
-          .map(stringify),
-      'public');
-
-  Expect.setEquals([
-    'Method(s(*) in s(Mixin))',
-    'Method(s(+) in s(Class))',
-    'Method(s(-) in s(Superclass))',
-    'TypeVariable(s(C) in s(Class),'
-        ' upperBound = Class(s(Object) in s(dart.core), top-level))',
-    'Method(s(Class.generativeConstructor) in s(Class), constructor)',
-    'Method(s(Class.normalFactory) in s(Class), static, constructor)',
-    'Method(s(Class.redirectingConstructor) in s(Class), constructor)',
-    'Method(s(Class.redirectingFactory) in s(Class), static, constructor)',
-    'TypeVariable(s(S) in s(Superclass),'
-        ' upperBound = Class(s(Object) in s(dart.core), top-level))',
-    'Method(s(Superclass.inheritedGenerativeConstructor)'
-        ' in s(Superclass), constructor)',
-    'Method(s(Superclass.inheritedNormalFactory)'
-        ' in s(Superclass), static, constructor)',
-    'Method(s(Superclass.inheritedRedirectingConstructor)'
-        ' in s(Superclass), constructor)',
-    'Method(s(Superclass.inheritedRedirectingFactory)'
-        ' in s(Superclass), static, constructor)',
-    'Method(s(abstractMethod) in s(Class), abstract)',
-    'Method(s(inheritedInstanceGetter) in s(Superclass), getter)',
-    'Method(s(inheritedInstanceMethod) in s(Superclass))',
-    'Method(s(inheritedInstanceSetter=) in s(Superclass), setter)',
-    'Variable(s(inheritedInstanceVariable) in s(Superclass))',
-    'Method(s(inheritedStaticGetter) in s(Superclass), static, getter)',
-    'Method(s(inheritedStaticMethod) in s(Superclass), static)',
-    'Method(s(inheritedStaticSetter=) in s(Superclass), static, setter)',
-    'Variable(s(inheritedStaticVariable) in s(Superclass), static)',
-    'Method(s(instanceGetter) in s(Class), getter)',
-    'Method(s(instanceMethod) in s(Class))',
-    'Method(s(instanceSetter=) in s(Class), setter)',
-    'Variable(s(instanceVariable) in s(Class))',
-    'Method(s(mixinInstanceGetter) in s(Mixin), getter)',
-    'Method(s(mixinInstanceMethod) in s(Mixin))',
-    'Method(s(mixinInstanceSetter=) in s(Mixin), setter)',
-    'Variable(s(mixinInstanceVariable) in s(Mixin))',
-    'Method(s(staticGetter) in s(Class), static, getter)',
-    'Method(s(staticMethod) in s(Class), static)',
-    'Method(s(staticSetter=) in s(Class), static, setter)',
-    'Variable(s(staticVariable) in s(Class), static)',
-    'Method(s(test.declarations_model.Superclass'
-        ' with test.declarations_model.Mixin.inheritedGenerativeConstructor)'
-        ' in s(test.declarations_model.Superclass'
-        ' with test.declarations_model.Mixin), constructor)',
-    'Method(s(test.declarations_model.Superclass'
-        ' with test.declarations_model.Mixin.inheritedRedirectingConstructor)'
-        ' in s(test.declarations_model.Superclass'
-        ' with test.declarations_model.Mixin), constructor)',
-    'Variable(s(mixinStaticVariable) in s(Mixin), static)',
-    'Method(s(mixinStaticGetter) in s(Mixin), static, getter)',
-    'Method(s(mixinStaticSetter=) in s(Mixin), static, setter)',
-    'Method(s(mixinStaticMethod) in s(Mixin), static)'
-  ], transitiveDeclarations(cm).where((dm) => !dm.isPrivate).map(stringify),
-      'transitive public');
-  // The public members of Object should be the same in all implementations, so
-  // we don't exclude Object here.
-
-  Expect.setEquals([
-    'Method(s(+) in s(Class))',
-    'TypeVariable(s(C) in s(Class),'
-        ' upperBound = Class(s(Object) in s(dart.core), top-level))',
-    'Method(s(Class._generativeConstructor) in s(Class), private, constructor)',
-    'Method(s(Class._normalFactory) in s(Class), private, static, constructor)',
-    'Method(s(Class._redirectingConstructor)'
-        ' in s(Class), private, constructor)',
-    'Method(s(Class._redirectingFactory)'
-        ' in s(Class), private, static, constructor)',
-    'Method(s(Class.generativeConstructor) in s(Class), constructor)',
-    'Method(s(Class.normalFactory) in s(Class), static, constructor)',
-    'Method(s(Class.redirectingConstructor) in s(Class), constructor)',
-    'Method(s(Class.redirectingFactory) in s(Class), static, constructor)',
-    'Method(s(_instanceGetter) in s(Class), private, getter)',
-    'Method(s(_instanceMethod) in s(Class), private)',
-    'Method(s(_instanceSetter=) in s(Class), private, setter)',
-    'Variable(s(_instanceVariable) in s(Class), private)',
-    'Method(s(_staticGetter) in s(Class), private, static, getter)',
-    'Method(s(_staticMethod) in s(Class), private, static)',
-    'Method(s(_staticSetter=) in s(Class), private, static, setter)',
-    'Variable(s(_staticVariable) in s(Class), private, static)',
-    'Method(s(abstractMethod) in s(Class), abstract)',
-    'Method(s(instanceGetter) in s(Class), getter)',
-    'Method(s(instanceMethod) in s(Class))',
-    'Method(s(instanceSetter=) in s(Class), setter)',
-    'Variable(s(instanceVariable) in s(Class))',
-    'Method(s(staticGetter) in s(Class), static, getter)',
-    'Method(s(staticMethod) in s(Class), static)',
-    'Method(s(staticSetter=) in s(Class), static, setter)',
-    'Variable(s(staticVariable) in s(Class), static)'
-  ], cm.declarations.values.map(stringify), 'declarations');
-
-  Expect.setEquals([
-    'Method(s(*) in s(Mixin))',
-    'Method(s(+) in s(Class))',
-    'Method(s(-) in s(Superclass))',
-    'TypeVariable(s(C) in s(Class),'
-        ' upperBound = Class(s(Object) in s(dart.core), top-level))',
-    'Method(s(Class._generativeConstructor) in s(Class), private, constructor)',
-    'Method(s(Class._normalFactory) in s(Class), private, static, constructor)',
-    'Method(s(Class._redirectingConstructor)'
-        ' in s(Class), private, constructor)',
-    'Method(s(Class._redirectingFactory)'
-        ' in s(Class), private, static, constructor)',
-    'Method(s(Class.generativeConstructor) in s(Class), constructor)',
-    'Method(s(Class.normalFactory) in s(Class), static, constructor)',
-    'Method(s(Class.redirectingConstructor) in s(Class), constructor)',
-    'Method(s(Class.redirectingFactory) in s(Class), static, constructor)',
-    'TypeVariable(s(S) in s(Superclass),'
-        ' upperBound = Class(s(Object) in s(dart.core), top-level))',
-    'Method(s(Superclass._inheritedGenerativeConstructor)'
-        ' in s(Superclass), private, constructor)',
-    'Method(s(Superclass._inheritedNormalFactory)'
-        ' in s(Superclass), private, static, constructor)',
-    'Method(s(Superclass._inheritedRedirectingConstructor)'
-        ' in s(Superclass), private, constructor)',
-    'Method(s(Superclass._inheritedRedirectingFactory)'
-        ' in s(Superclass), private, static, constructor)',
-    'Method(s(Superclass.inheritedGenerativeConstructor)'
-        ' in s(Superclass), constructor)',
-    'Method(s(Superclass.inheritedNormalFactory)'
-        ' in s(Superclass), static, constructor)',
-    'Method(s(Superclass.inheritedRedirectingConstructor)'
-        ' in s(Superclass), constructor)',
-    'Method(s(Superclass.inheritedRedirectingFactory)'
-        ' in s(Superclass), static, constructor)',
-    'Method(s(_inheritedInstanceGetter) in s(Superclass), private, getter)',
-    'Method(s(_inheritedInstanceMethod) in s(Superclass), private)',
-    'Method(s(_inheritedInstanceSetter=) in s(Superclass), private, setter)',
-    'Variable(s(_inheritedInstanceVariable) in s(Superclass), private)',
-    'Method(s(_inheritedStaticGetter)'
-        ' in s(Superclass), private, static, getter)',
-    'Method(s(_inheritedStaticMethod) in s(Superclass), private, static)',
-    'Method(s(_inheritedStaticSetter=)'
-        ' in s(Superclass), private, static, setter)',
-    'Variable(s(_inheritedStaticVariable) in s(Superclass), private, static)',
-    'Method(s(_instanceGetter) in s(Class), private, getter)',
-    'Method(s(_instanceMethod) in s(Class), private)',
-    'Method(s(_instanceSetter=) in s(Class), private, setter)',
-    'Variable(s(_instanceVariable) in s(Class), private)',
-    'Method(s(_mixinInstanceGetter) in s(Mixin), private, getter)',
-    'Method(s(_mixinInstanceMethod) in s(Mixin), private)',
-    'Method(s(_mixinInstanceSetter=) in s(Mixin), private, setter)',
-    'Variable(s(_mixinInstanceVariable) in s(Mixin), private)',
-    'Method(s(_staticGetter) in s(Class), private, static, getter)',
-    'Method(s(_staticMethod) in s(Class), private, static)',
-    'Method(s(_staticSetter=) in s(Class), private, static, setter)',
-    'Variable(s(_staticVariable) in s(Class), private, static)',
-    'Method(s(abstractMethod) in s(Class), abstract)',
-    'Method(s(inheritedInstanceGetter) in s(Superclass), getter)',
-    'Method(s(inheritedInstanceMethod) in s(Superclass))',
-    'Method(s(inheritedInstanceSetter=) in s(Superclass), setter)',
-    'Variable(s(inheritedInstanceVariable) in s(Superclass))',
-    'Method(s(inheritedStaticGetter) in s(Superclass), static, getter)',
-    'Method(s(inheritedStaticMethod) in s(Superclass), static)',
-    'Method(s(inheritedStaticSetter=) in s(Superclass), static, setter)',
-    'Variable(s(inheritedStaticVariable) in s(Superclass), static)',
-    'Method(s(instanceGetter) in s(Class), getter)',
-    'Method(s(instanceMethod) in s(Class))',
-    'Method(s(instanceSetter=) in s(Class), setter)',
-    'Variable(s(instanceVariable) in s(Class))',
-    'Method(s(mixinInstanceGetter) in s(Mixin), getter)',
-    'Method(s(mixinInstanceMethod) in s(Mixin))',
-    'Method(s(mixinInstanceSetter=) in s(Mixin), setter)',
-    'Variable(s(mixinInstanceVariable) in s(Mixin))',
-    'Method(s(staticGetter) in s(Class), static, getter)',
-    'Method(s(staticMethod) in s(Class), static)',
-    'Method(s(staticSetter=) in s(Class), static, setter)',
-    'Variable(s(staticVariable) in s(Class), static)',
-    'Method(s(test.declarations_model.Superclass'
-        ' with test.declarations_model.Mixin._inheritedGenerativeConstructor)'
-        ' in s(test.declarations_model.Superclass'
-        ' with test.declarations_model.Mixin), private, constructor)',
-    'Method(s(test.declarations_model.Superclass'
-        ' with test.declarations_model.Mixin._inheritedRedirectingConstructor)'
-        ' in s(test.declarations_model.Superclass'
-        ' with test.declarations_model.Mixin), private, constructor)',
-    'Method(s(test.declarations_model.Superclass'
-        ' with test.declarations_model.Mixin.inheritedGenerativeConstructor)'
-        ' in s(test.declarations_model.Superclass'
-        ' with test.declarations_model.Mixin), constructor)',
-    'Method(s(test.declarations_model.Superclass'
-        ' with test.declarations_model.Mixin.inheritedRedirectingConstructor)'
-        ' in s(test.declarations_model.Superclass'
-        ' with test.declarations_model.Mixin), constructor)',
-    'Variable(s(mixinStaticVariable) in s(Mixin), static)',
-    'Variable(s(_mixinStaticVariable) in s(Mixin), private, static)',
-    'Method(s(mixinStaticGetter) in s(Mixin), static, getter)',
-    'Method(s(mixinStaticSetter=) in s(Mixin), static, setter)',
-    'Method(s(mixinStaticMethod) in s(Mixin), static)',
-    'Method(s(_mixinStaticGetter) in s(Mixin), private, static, getter)',
-    'Method(s(_mixinStaticSetter=) in s(Mixin), private, static, setter)',
-    'Method(s(_mixinStaticMethod) in s(Mixin), private, static)'
-  ], transitiveDeclarations(cm).map(stringify), 'transitive all');
-}
diff --git a/tests/lib_2/mirrors/class_mirror_location_other.dart b/tests/lib_2/mirrors/class_mirror_location_other.dart
deleted file mode 100644
index 4544b56a2aa..00000000000
--- a/tests/lib_2/mirrors/class_mirror_location_other.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-part of test.class_location;
-
-class ClassInOtherFile {}
-
-  class SpaceIndentedInOtherFile {}
-
-	class TabIndentedInOtherFile {}
diff --git a/tests/lib_2/mirrors/class_mirror_location_test.dart b/tests/lib_2/mirrors/class_mirror_location_test.dart
deleted file mode 100644
index 0546c4cda82..00000000000
--- a/tests/lib_2/mirrors/class_mirror_location_test.dart
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-library test.class_location;
-
-import "dart:mirrors";
-import "package:expect/expect.dart";
-
-part 'class_mirror_location_other.dart';
-
-class ClassInMainFile {}
-  class SpaceIndentedInMainFile {}
-	class TabIndentedInMainFile {}
-
-abstract class AbstractClass {}
-typedef bool Predicate(num n);
-
-class M {}
-class S {}
-class MA extends S with M {}
-class MA2 = S with M;
-
-const metadata = 'metadata';
-
-@metadata
-class WithMetadata {}
-
-enum Enum { RED, GREEN, BLUE }
-
-@metadata
-enum AnnotatedEnum { SALT, PEPPER }
-
-// We only check for a suffix of the uri because the test might be run from
-// any number of absolute paths.
-expectLocation(
-    DeclarationMirror mirror, String uriSuffix, int line, int column) {
-  final location = mirror.location;
-  final uri = location.sourceUri;
-  Expect.isTrue(
-      uri.toString().endsWith(uriSuffix), "Expected suffix $uriSuffix in $uri");
-  Expect.equals(line, location.line, "line");
-  Expect.equals(column, location.column, "column");
-}
-
-main() {
-  String mainSuffix = 'class_mirror_location_test.dart';
-  String otherSuffix = 'class_mirror_location_other.dart';
-
-  // This file.
-  expectLocation(reflectClass(ClassInMainFile), mainSuffix, 12, 1);
-  expectLocation(reflectClass(SpaceIndentedInMainFile), mainSuffix, 13, 3);
-  expectLocation(reflectClass(TabIndentedInMainFile), mainSuffix, 14, 2);
-  expectLocation(reflectClass(AbstractClass), mainSuffix, 16, 1);
-  expectLocation(reflectType(Predicate), mainSuffix, 17, 1);
-  expectLocation(reflectClass(MA), mainSuffix, 21, 1);
-  expectLocation(reflectClass(MA2), mainSuffix, 22, 1);
-  expectLocation(reflectClass(WithMetadata), mainSuffix, 26, 1);
-  expectLocation(reflectClass(Enum), mainSuffix, 29, 1);
-  expectLocation(reflectClass(AnnotatedEnum), mainSuffix, 31, 1);
-
-  // Another part.
-  expectLocation(reflectClass(ClassInOtherFile), otherSuffix, 7, 1);
-  expectLocation(reflectClass(SpaceIndentedInOtherFile), otherSuffix, 9, 3);
-  expectLocation(reflectClass(TabIndentedInOtherFile), otherSuffix, 11, 2);
-
-  // Synthetic classes.
-  Expect.isNull(reflectClass(MA).superclass.location);
-  Expect.isNull((reflect(main) as ClosureMirror).type.location);
-}
diff --git a/tests/lib_2/mirrors/class_mirror_type_variables_data.dart b/tests/lib_2/mirrors/class_mirror_type_variables_data.dart
deleted file mode 100644
index 8607d13a84d..00000000000
--- a/tests/lib_2/mirrors/class_mirror_type_variables_data.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library class_mirror_type_variables_data;
-
-class NoTypeParams {}
-
-class A<T, S extends String> {}
-
-class B<Z extends B<Z>> {}
-
-class C<Z extends B<Z>> {}
-
-class D<R, S, T> {
-  R foo(R r) => r;
-  S bar(S s) => s;
-  T baz(T t) => t;
-}
-
-class Helper<S> {}
-
-class E<R extends Map<R, Helper<String>>> {}
-
-class F<Z extends Helper<F<Z>>> {}
diff --git a/tests/lib_2/mirrors/class_mirror_type_variables_expect.dart b/tests/lib_2/mirrors/class_mirror_type_variables_expect.dart
deleted file mode 100644
index 5adbd2d0a0d..00000000000
--- a/tests/lib_2/mirrors/class_mirror_type_variables_expect.dart
+++ /dev/null
@@ -1,128 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test expectations for 'class_mirror_type_variables_data.dart'.
-
-library class_mirror_type_variables_expect;
-
-import "dart:mirrors";
-
-import "package:expect/expect.dart";
-
-/// The interface of [Env] is shared between the runtime and the source mirrors
-/// test.
-abstract class Env {
-  ClassMirror getA();
-  ClassMirror getB();
-  ClassMirror getC();
-  ClassMirror getD();
-  ClassMirror getE();
-  ClassMirror getF();
-  ClassMirror getNoTypeParams();
-  ClassMirror getObject();
-  ClassMirror getString();
-  ClassMirror getHelperOfString();
-}
-
-void test(Env env) {
-  testNoTypeParams(env);
-  testA(env);
-  testBAndC(env);
-  testD(env);
-  testE(env);
-  testF(env);
-}
-
-testNoTypeParams(Env env) {
-  ClassMirror cm = env.getNoTypeParams();
-  Expect.equals(cm.typeVariables.length, 0);
-}
-
-void testA(Env env) {
-  ClassMirror a = env.getA();
-  Expect.equals(2, a.typeVariables.length);
-
-  TypeVariableMirror aT = a.typeVariables[0];
-  TypeVariableMirror aS = a.typeVariables[1];
-  ClassMirror aTBound = aT.upperBound as ClassMirror;
-  ClassMirror aSBound = aS.upperBound as ClassMirror;
-
-  Expect.isTrue(aTBound.isOriginalDeclaration);
-  Expect.isTrue(aSBound.isOriginalDeclaration);
-
-  Expect.equals(env.getObject(), aTBound);
-  Expect.equals(env.getString(), aSBound);
-}
-
-void testBAndC(Env env) {
-  ClassMirror b = env.getB();
-  ClassMirror c = env.getC();
-
-  Expect.equals(1, b.typeVariables.length);
-  Expect.equals(1, c.typeVariables.length);
-
-  TypeVariableMirror bZ = b.typeVariables[0];
-  TypeVariableMirror cZ = c.typeVariables[0];
-  ClassMirror bZBound = bZ.upperBound as ClassMirror;
-  ClassMirror cZBound = cZ.upperBound as ClassMirror;
-
-  Expect.isFalse(bZBound.isOriginalDeclaration);
-  Expect.isFalse(cZBound.isOriginalDeclaration);
-
-  Expect.equals(b, bZBound.originalDeclaration);
-  Expect.equals(b, cZBound.originalDeclaration);
-
-  TypeMirror bZBoundTypeArgument = bZBound.typeArguments.single;
-  TypeMirror cZBoundTypeArgument = cZBound.typeArguments.single;
-  TypeVariableMirror bZBoundTypeVariable = bZBound.typeVariables.single;
-  TypeVariableMirror cZBoundTypeVariable = cZBound.typeVariables.single;
-
-  Expect.equals(b, bZ.owner);
-  Expect.equals(c, cZ.owner);
-  Expect.equals(b, bZBoundTypeVariable.owner);
-  Expect.equals(b, cZBoundTypeVariable.owner);
-
-  Expect.equals(bZ, bZBoundTypeArgument);
-  Expect.equals(cZ, cZBoundTypeArgument);
-  Expect.equals(bZ, bZBoundTypeVariable);
-  Expect.equals(bZ, cZBoundTypeVariable);
-}
-
-testD(Env env) {
-  ClassMirror cm = env.getD();
-  Expect.equals(3, cm.typeVariables.length);
-  var values = cm.typeVariables;
-  values.forEach((e) {
-    Expect.equals(true, e is TypeVariableMirror);
-  });
-
-  // Names of type variables are not preserved after type canonicalization
-  // and are therefore not compared to expected names.
-}
-
-void testE(Env env) {
-  ClassMirror e = env.getE();
-  TypeVariableMirror eR = e.typeVariables.single;
-  ClassMirror mapRAndHelperOfString = eR.upperBound as ClassMirror;
-
-  Expect.isFalse(mapRAndHelperOfString.isOriginalDeclaration);
-  Expect.equals(eR, mapRAndHelperOfString.typeArguments.first);
-  Expect.equals(
-      env.getHelperOfString(), mapRAndHelperOfString.typeArguments.last);
-}
-
-void testF(Env env) {
-  ClassMirror f = env.getF();
-  TypeVariableMirror fZ = f.typeVariables[0];
-  ClassMirror fZBound = fZ.upperBound as ClassMirror;
-  ClassMirror fZBoundTypeArgument = fZBound.typeArguments.single as ClassMirror;
-
-  Expect.equals(1, f.typeVariables.length);
-  Expect.isFalse(fZBound.isOriginalDeclaration);
-  Expect.isFalse(fZBoundTypeArgument.isOriginalDeclaration);
-  Expect.equals(f, fZBoundTypeArgument.originalDeclaration);
-  Expect.equals(fZ, fZBoundTypeArgument.typeArguments.single);
-}
diff --git a/tests/lib_2/mirrors/class_mirror_type_variables_test.dart b/tests/lib_2/mirrors/class_mirror_type_variables_test.dart
deleted file mode 100644
index 857e8c5dbd2..00000000000
--- a/tests/lib_2/mirrors/class_mirror_type_variables_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:mirrors";
-
-import "package:expect/expect.dart";
-
-import "class_mirror_type_variables_data.dart";
-import "class_mirror_type_variables_expect.dart";
-
-class RuntimeEnv implements Env {
-  ClassMirror getA() => reflectClass(A);
-  ClassMirror getB() => reflectClass(B);
-  ClassMirror getC() => reflectClass(C);
-  ClassMirror getD() => reflectClass(D);
-  ClassMirror getE() => reflectClass(E);
-  ClassMirror getF() => reflectClass(F);
-  ClassMirror getNoTypeParams() => reflectClass(NoTypeParams);
-  ClassMirror getObject() => reflectClass(Object);
-  ClassMirror getString() => reflectClass(String);
-  ClassMirror getHelperOfString() => reflect(new Helper<String>()).type;
-}
-
-main() {
-  test(new RuntimeEnv());
-}
diff --git a/tests/lib_2/mirrors/closure_mirror_import1.dart b/tests/lib_2/mirrors/closure_mirror_import1.dart
deleted file mode 100644
index 74fe2cca442..00000000000
--- a/tests/lib_2/mirrors/closure_mirror_import1.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library closure_mirror_import1;
-
-export "closure_mirror_import2.dart" show firstGlobalVariableInImport2;
-
-var globalVariableInImport1 = "globalVariableInImport1";
-
-globalFunctionInImport1() => "globalFunctionInImport1";
-
-class StaticClass {
-  static var staticField = "staticField";
-
-  static staticFunctionInStaticClass() => "staticFunctionInStaticClass";
-}
diff --git a/tests/lib_2/mirrors/closure_mirror_import2.dart b/tests/lib_2/mirrors/closure_mirror_import2.dart
deleted file mode 100644
index ef320e23c25..00000000000
--- a/tests/lib_2/mirrors/closure_mirror_import2.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library closure_mirror_import2;
-
-var firstGlobalVariableInImport2 = "firstGlobalVariableInImport2";
-var secondGlobalVariableInImport2 = "secondGlobalVariableInImport2";
diff --git a/tests/lib_2/mirrors/closures_test.dart b/tests/lib_2/mirrors/closures_test.dart
deleted file mode 100644
index 5e7a4eb172c..00000000000
--- a/tests/lib_2/mirrors/closures_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-import 'stringify.dart';
-
-testIntercepted() {
-  var instance = [];
-  var closureMirror = reflect(instance.toString) as ClosureMirror;
-  var methodMirror = closureMirror.function;
-  Expect.equals(#toString, methodMirror.simpleName);
-  Expect.equals('[]', closureMirror.apply([]).reflectee);
-}
-
-testNonIntercepted() {
-  var closure = new Map().containsKey;
-  var closureMirror = reflect(closure) as ClosureMirror;
-  var methodMirror = closureMirror.function;
-  Expect.equals(#containsKey, methodMirror.simpleName);
-  Expect.isFalse(closureMirror.apply([7]).reflectee);
-}
-
-main() {
-  testIntercepted();
-  testNonIntercepted();
-}
diff --git a/tests/lib_2/mirrors/closurization_equivalence_test.dart b/tests/lib_2/mirrors/closurization_equivalence_test.dart
deleted file mode 100644
index cd2c3ed8c8e..00000000000
--- a/tests/lib_2/mirrors/closurization_equivalence_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-topLevelMethod() {}
-
-class C {
-  static staticMethod() {}
-  instanceMethod() {}
-}
-
-main() {
-  LibraryMirror thisLibrary = reflectClass(C).owner as LibraryMirror;
-  Expect.equals(thisLibrary.declarations[#topLevelMethod],
-      (reflect(topLevelMethod) as ClosureMirror).function, "topLevel");
-
-  Expect.equals(reflectClass(C).declarations[#staticMethod],
-      (reflect(C.staticMethod) as ClosureMirror).function, "static");
-
-  Expect.equals(reflectClass(C).declarations[#instanceMethod],
-      (reflect(new C().instanceMethod) as ClosureMirror).function, "instance");
-}
diff --git a/tests/lib_2/mirrors/const_evaluation_test.dart b/tests/lib_2/mirrors/const_evaluation_test.dart
deleted file mode 100644
index ce9b92208cc..00000000000
--- a/tests/lib_2/mirrors/const_evaluation_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Check that compile-time evaluation of constants is consistent with runtime
-// evaluation.
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-const top_const = identical(-0.0, 0);
-
-@top_const
-class C {}
-
-void main() {
-  var local_var = identical(-0.0, 0);
-  var metadata = reflectClass(C).metadata[0].reflectee;
-  Expect.equals(top_const, metadata);
-  Expect.equals(local_var, metadata);
-}
diff --git a/tests/lib_2/mirrors/constructor_kinds_test.dart b/tests/lib_2/mirrors/constructor_kinds_test.dart
deleted file mode 100644
index 8961ed09e4c..00000000000
--- a/tests/lib_2/mirrors/constructor_kinds_test.dart
+++ /dev/null
@@ -1,114 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.constructor_kinds_test;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-class ClassWithDefaultConstructor {}
-
-class Class {
-  Class.generativeConstructor();
-  Class.redirectingGenerativeConstructor() : this.generativeConstructor();
-  factory Class.factoryConstructor() => new Class.generativeConstructor();
-  factory Class.redirectingFactoryConstructor() = Class.factoryConstructor;
-
-  const Class.constGenerativeConstructor();
-  const Class.constRedirectingGenerativeConstructor()
-      : this.constGenerativeConstructor();
-  // Not legal.
-  // const factory Class.constFactoryConstructor() => ...
-  const factory Class.constRedirectingFactoryConstructor() =
-      Class.constGenerativeConstructor;
-}
-
-main() {
-  ClassMirror cm;
-  MethodMirror mm;
-
-  // Multitest with and without constructor calls. On the VM, we want to check
-  // that constructor properties are correctly set even if the constructor
-  // hasn't been fully compiled. On dart2js, we want to check that constructors
-  // are retain even if there are no base-level calls.
-  new ClassWithDefaultConstructor(); // //# 01: ok
-  new Class.generativeConstructor(); // //# 01: ok
-  new Class.redirectingGenerativeConstructor(); // //# 01: ok
-  new Class.factoryConstructor(); // //# 01: ok
-  new Class.redirectingFactoryConstructor(); // //# 01: ok
-  const Class.constGenerativeConstructor(); // //# 01: ok
-  const Class.constRedirectingGenerativeConstructor(); // //# 01: ok
-  const Class.constRedirectingFactoryConstructor(); // //# 01: ok
-
-  cm = reflectClass(ClassWithDefaultConstructor);
-  mm = cm.declarations.values
-      .where((d) => d is MethodMirror && d.isConstructor)
-      .single as MethodMirror;
-  Expect.isTrue(mm.isConstructor);
-  Expect.isTrue(mm.isGenerativeConstructor);
-  Expect.isFalse(mm.isFactoryConstructor);
-  Expect.isFalse(mm.isRedirectingConstructor);
-  Expect.isFalse(mm.isConstConstructor);
-
-  cm = reflectClass(Class);
-
-  mm = cm.declarations[#Class.generativeConstructor] as MethodMirror;
-  Expect.isTrue(mm.isConstructor);
-  Expect.isTrue(mm.isGenerativeConstructor);
-  Expect.isFalse(mm.isFactoryConstructor);
-  Expect.isFalse(mm.isRedirectingConstructor);
-  Expect.isFalse(mm.isConstConstructor);
-
-  mm = cm.declarations[#Class.redirectingGenerativeConstructor] as MethodMirror;
-  Expect.isTrue(mm.isConstructor);
-  Expect.isTrue(mm.isGenerativeConstructor);
-  Expect.isFalse(mm.isFactoryConstructor);
-  Expect.isTrue(mm.isRedirectingConstructor);
-  Expect.isFalse(mm.isConstConstructor);
-
-  mm = cm.declarations[#Class.factoryConstructor] as MethodMirror;
-  Expect.isTrue(mm.isConstructor);
-  Expect.isFalse(mm.isGenerativeConstructor);
-  Expect.isTrue(mm.isFactoryConstructor);
-  Expect.isFalse(mm.isRedirectingConstructor);
-  Expect.isFalse(mm.isConstConstructor);
-
-  mm = cm.declarations[#Class.redirectingFactoryConstructor] as MethodMirror;
-  Expect.isTrue(mm.isConstructor);
-  Expect.isFalse(mm.isGenerativeConstructor);
-  Expect.isTrue(mm.isFactoryConstructor);
-  Expect.isTrue(mm.isRedirectingConstructor);
-  Expect.isFalse(mm.isConstConstructor);
-
-  mm = cm.declarations[#Class.constGenerativeConstructor] as MethodMirror;
-  Expect.isTrue(mm.isConstructor);
-  Expect.isTrue(mm.isGenerativeConstructor);
-  Expect.isFalse(mm.isFactoryConstructor);
-  Expect.isFalse(mm.isRedirectingConstructor);
-  Expect.isTrue(mm.isConstConstructor);
-
-  mm = cm.declarations[#Class.constRedirectingGenerativeConstructor] as MethodMirror;
-  Expect.isTrue(mm.isConstructor);
-  Expect.isTrue(mm.isGenerativeConstructor);
-  Expect.isFalse(mm.isFactoryConstructor);
-  Expect.isTrue(mm.isRedirectingConstructor);
-  Expect.isTrue(mm.isConstConstructor);
-
-  // Not legal.
-  // mm = cm.declarations[#Class.constFactoryConstructor] as MethodMirror;
-  // Expect.isTrue(mm.isConstructor);
-  // Expect.isFalse(mm.isGenerativeConstructor);
-  // Expect.isTrue(mm.isFactoryConstructor);
-  // Expect.isFalse(mm.isRedirectingConstructor);
-  // Expect.isTrue(mm.isConstConstructor);
-
-  mm = cm.declarations[#Class.constRedirectingFactoryConstructor] as MethodMirror;
-  Expect.isTrue(mm.isConstructor);
-  Expect.isFalse(mm.isGenerativeConstructor);
-  Expect.isTrue(mm.isFactoryConstructor);
-  Expect.isTrue(mm.isRedirectingConstructor);
-  Expect.isTrue(mm.isConstConstructor);
-}
diff --git a/tests/lib_2/mirrors/constructor_optional_args_test.dart b/tests/lib_2/mirrors/constructor_optional_args_test.dart
deleted file mode 100644
index 090451b3bc6..00000000000
--- a/tests/lib_2/mirrors/constructor_optional_args_test.dart
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.constructor_test;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-class A {
-  factory A([x, y]) = B;
-  factory A.more([x, y]) = B.more;
-  factory A.oneMore(x, [y]) = B.more;
-}
-
-class B implements A {
-  final _x, _y, _z;
-
-  B([x = 'x', y = 'y'])
-      : _x = x,
-        _y = y,
-        _z = null;
-
-  B.more([x = 'x', y = 'y', z = 'z'])
-      : _x = x,
-        _y = y,
-        _z = z;
-
-  toString() => 'B(x=$_x, y=$_y, z=$_z)';
-}
-
-main() {
-  var d1 = new A(1);
-  Expect.equals('B(x=1, y=y, z=null)', '$d1', 'direct 1');
-
-  var d2 = new A.more(1);
-  Expect.equals('B(x=1, y=y, z=z)', '$d2', 'direct 2');
-
-  ClassMirror cm = reflectClass(A);
-
-  var v1 = cm.newInstance(Symbol.empty, []).reflectee;
-  var v2 = cm.newInstance(Symbol.empty, [1]).reflectee;
-  var v3 = cm.newInstance(Symbol.empty, [2, 3]).reflectee;
-
-  Expect.equals('B(x=x, y=y, z=null)', '$v1', 'unnamed 1');
-  Expect.equals('B(x=1, y=y, z=null)', '$v2', 'unnamed 2');
-  Expect.equals('B(x=2, y=3, z=null)', '$v3', 'unnamed 3');
-
-  var m1 = cm.newInstance(const Symbol('more'), []).reflectee;
-  var m2 = cm.newInstance(const Symbol('more'), [1]).reflectee;
-  var m3 = cm.newInstance(const Symbol('more'), [2, 3]).reflectee;
-
-  Expect.equals('B(x=x, y=y, z=z)', '$m1', 'more 1');
-  Expect.equals('B(x=1, y=y, z=z)', '$m2', 'more 2');
-  Expect.equals('B(x=2, y=3, z=z)', '$m3', 'more 3');
-
-  var o1 = cm.newInstance(const Symbol('oneMore'), [1]).reflectee;
-  var o2 = cm.newInstance(const Symbol('oneMore'), [2, 3]).reflectee;
-
-  Expect.equals('B(x=1, y=y, z=z)', '$o1', 'oneMore one arg');
-  Expect.equals('B(x=2, y=3, z=z)', '$o2', 'oneMore two args');
-}
diff --git a/tests/lib_2/mirrors/constructor_private_name_test.dart b/tests/lib_2/mirrors/constructor_private_name_test.dart
deleted file mode 100644
index 4bf909eb12f..00000000000
--- a/tests/lib_2/mirrors/constructor_private_name_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.constructors_test;
-
-// Regression test for C1 bug.
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class Foo {
-  Foo._private();
-}
-
-class _Foo {
-  _Foo._private();
-}
-
-main() {
-  ClassMirror fooMirror = reflectClass(Foo);
-  Symbol constructorName =
-      (fooMirror.declarations[#Foo._private] as MethodMirror).constructorName;
-  fooMirror.newInstance(constructorName, []);
-
-  ClassMirror _fooMirror = reflectClass(_Foo);
-  constructorName =
-      (_fooMirror.declarations[#_Foo._private] as MethodMirror).constructorName;
-  _fooMirror.newInstance(constructorName, []);
-}
diff --git a/tests/lib_2/mirrors/constructors_test.dart b/tests/lib_2/mirrors/constructors_test.dart
deleted file mode 100644
index 8f532114168..00000000000
--- a/tests/lib_2/mirrors/constructors_test.dart
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.constructors_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-import 'stringify.dart';
-
-constructorsOf(ClassMirror cm) {
-  var result = new Map<Symbol, MethodMirror>();
-  cm.declarations.forEach((k, v) {
-    if (v is MethodMirror && v.isConstructor) result[k] = v;
-  });
-  return result;
-}
-
-class Foo {}
-
-class Bar {
-  Bar();
-}
-
-class Baz {
-  Baz.named();
-}
-
-class Biz {
-  Biz();
-  Biz.named();
-}
-
-main() {
-  ClassMirror fooMirror = reflectClass(Foo);
-  Map<Symbol, MethodMirror> fooConstructors = constructorsOf(fooMirror);
-  ClassMirror barMirror = reflectClass(Bar);
-  Map<Symbol, MethodMirror> barConstructors = constructorsOf(barMirror);
-  ClassMirror bazMirror = reflectClass(Baz);
-  Map<Symbol, MethodMirror> bazConstructors = constructorsOf(bazMirror);
-  ClassMirror bizMirror = reflectClass(Biz);
-  Map<Symbol, MethodMirror> bizConstructors = constructorsOf(bizMirror);
-
-  expect('{Foo: Method(s(Foo) in s(Foo), constructor)}', fooConstructors);
-  expect('{Bar: Method(s(Bar) in s(Bar), constructor)}', barConstructors);
-  expect('{Baz.named: Method(s(Baz.named) in s(Baz), constructor)}',
-      bazConstructors);
-  expect(
-      '{Biz: Method(s(Biz) in s(Biz), constructor),'
-      ' Biz.named: Method(s(Biz.named) in s(Biz), constructor)}',
-      bizConstructors);
-  print(bizConstructors);
-
-  expect('[]', fooConstructors.values.single.parameters);
-  expect('[]', barConstructors.values.single.parameters);
-  expect('[]', bazConstructors.values.single.parameters);
-  for (var constructor in bizConstructors.values) {
-    expect('[]', constructor.parameters);
-  }
-
-  expect(
-      '[s()]', fooConstructors.values.map((m) => m.constructorName).toList());
-  expect(
-      '[s()]', barConstructors.values.map((m) => m.constructorName).toList());
-  expect('[s(named)]',
-      bazConstructors.values.map((m) => m.constructorName).toList());
-  expect(
-      '[s(), s(named)]',
-      bizConstructors.values.map((m) => m.constructorName).toList()
-        ..sort(compareSymbols));
-}
diff --git a/tests/lib_2/mirrors/dart2js_mirrors_test.dart b/tests/lib_2/mirrors/dart2js_mirrors_test.dart
deleted file mode 100644
index f1496004d47..00000000000
--- a/tests/lib_2/mirrors/dart2js_mirrors_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test should be removed when dart2js can pass all mirror tests.
-// TODO(ahe): Remove this test.
-
-import 'mirrors_test.dart' as test;
-
-main() {
-  test.isDart2js = true;
-  test.main();
-}
diff --git a/tests/lib_2/mirrors/declarations_model.dart b/tests/lib_2/mirrors/declarations_model.dart
deleted file mode 100644
index f6a78935ed1..00000000000
--- a/tests/lib_2/mirrors/declarations_model.dart
+++ /dev/null
@@ -1,168 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.declarations_model;
-
-var libraryVariable;
-get libraryGetter => null;
-set librarySetter(x) => x;
-libraryMethod() => null;
-
-var _libraryVariable;
-get _libraryGetter => null;
-set _librarySetter(x) => x;
-_libraryMethod() => null;
-
-typedef bool Predicate(dynamic);
-
-abstract class Interface<I> {
-  operator /(x) => null;
-
-  var interfaceInstanceVariable;
-  get interfaceInstanceGetter;
-  set interfaceInstanceSetter(x);
-  interfaceInstanceMethod();
-
-  var _interfaceInstanceVariable;
-  get _interfaceInstanceGetter;
-  set _interfaceInstanceSetter(x);
-  _interfaceInstanceMethod();
-
-  static var interfaceStaticVariable;
-  static get interfaceStaticGetter => null;
-  static set interfaceStaticSetter(x) => x;
-  static interfaceStaticMethod() => null;
-
-  static var _interfaceStaticVariable;
-  static get _interfaceStaticGetter => null;
-  static set _interfaceStaticSetter(x) => x;
-  static _interfaceStaticMethod() => null;
-}
-
-class Mixin<M> {
-  operator *(x) => null;
-
-  var mixinInstanceVariable;
-  get mixinInstanceGetter => null;
-  set mixinInstanceSetter(x) => x;
-  mixinInstanceMethod() => null;
-
-  var _mixinInstanceVariable;
-  get _mixinInstanceGetter => null;
-  set _mixinInstanceSetter(x) => x;
-  _mixinInstanceMethod() => null;
-
-  static var mixinStaticVariable;
-  static get mixinStaticGetter => null;
-  static set mixinStaticSetter(x) => x;
-  static mixinStaticMethod() => null;
-
-  static var _mixinStaticVariable;
-  static get _mixinStaticGetter => null;
-  static set _mixinStaticSetter(x) => x;
-  static _mixinStaticMethod() => null;
-}
-
-class Superclass<S> {
-  operator -(x) => null;
-
-  var inheritedInstanceVariable;
-  get inheritedInstanceGetter => null;
-  set inheritedInstanceSetter(x) => x;
-  inheritedInstanceMethod() => null;
-
-  var _inheritedInstanceVariable;
-  get _inheritedInstanceGetter => null;
-  set _inheritedInstanceSetter(x) => x;
-  _inheritedInstanceMethod() => null;
-
-  static var inheritedStaticVariable;
-  static get inheritedStaticGetter => null;
-  static set inheritedStaticSetter(x) => x;
-  static inheritedStaticMethod() => null;
-
-  static var _inheritedStaticVariable;
-  static get _inheritedStaticGetter => null;
-  static set _inheritedStaticSetter(x) => x;
-  static _inheritedStaticMethod() => null;
-
-  Superclass.inheritedGenerativeConstructor(this.inheritedInstanceVariable);
-  Superclass.inheritedRedirectingConstructor(x)
-      : this.inheritedGenerativeConstructor(x * 2);
-  factory Superclass.inheritedNormalFactory(y) =>
-      new Superclass.inheritedRedirectingConstructor(y * 3);
-  factory Superclass.inheritedRedirectingFactory(z) =
-      Superclass<S>.inheritedNormalFactory;
-
-  Superclass._inheritedGenerativeConstructor(this._inheritedInstanceVariable);
-  Superclass._inheritedRedirectingConstructor(x)
-      : this._inheritedGenerativeConstructor(x * 2);
-  factory Superclass._inheritedNormalFactory(y) =>
-      new Superclass._inheritedRedirectingConstructor(y * 3);
-  factory Superclass._inheritedRedirectingFactory(z) =
-      Superclass<S>._inheritedNormalFactory;
-}
-
-abstract class Class<C> extends Superclass<C>
-    with Mixin<C>
-    implements Interface<C> {
-  operator +(x) => null;
-
-  abstractMethod();
-
-  var instanceVariable;
-  get instanceGetter => null;
-  set instanceSetter(x) => x;
-  instanceMethod() => null;
-
-  var _instanceVariable;
-  get _instanceGetter => null;
-  set _instanceSetter(x) => x;
-  _instanceMethod() => null;
-
-  static var staticVariable;
-  static get staticGetter => null;
-  static set staticSetter(x) => x;
-  static staticMethod() => null;
-
-  static var _staticVariable;
-  static get _staticGetter => null;
-  static set _staticSetter(x) => x;
-  static _staticMethod() => null;
-
-  Class.generativeConstructor(this.instanceVariable)
-      : super.inheritedGenerativeConstructor(0);
-  Class.redirectingConstructor(x) : this.generativeConstructor(x * 2);
-  factory Class.normalFactory(y) => new ConcreteClass(y * 3);
-  factory Class.redirectingFactory(z) = Class<C>.normalFactory;
-
-  Class._generativeConstructor(this._instanceVariable)
-      : super._inheritedGenerativeConstructor(0);
-  Class._redirectingConstructor(x) : this._generativeConstructor(x * 2);
-  factory Class._normalFactory(y) => new ConcreteClass(y * 3);
-  factory Class._redirectingFactory(z) = Class<C>._normalFactory;
-}
-
-// This is just here as a target of Class's factories to appease the analyzer.
-class ConcreteClass<CC> extends Class<CC> {
-  abstractMethod() {}
-
-  operator /(x) => null;
-
-  var interfaceInstanceVariable;
-  get interfaceInstanceGetter => null;
-  set interfaceInstanceSetter(x) => null;
-  interfaceInstanceMethod() => null;
-
-  var _interfaceInstanceVariable;
-  get _interfaceInstanceGetter => null;
-  set _interfaceInstanceSetter(x) => null;
-  _interfaceInstanceMethod() => null;
-
-  ConcreteClass(x) : super.generativeConstructor(x);
-}
-
-class _PrivateClass {}
diff --git a/tests/lib_2/mirrors/declarations_model_easier.dart b/tests/lib_2/mirrors/declarations_model_easier.dart
deleted file mode 100644
index 26da5b89ff8..00000000000
--- a/tests/lib_2/mirrors/declarations_model_easier.dart
+++ /dev/null
@@ -1,86 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.declarations_model;
-
-var libraryVariable;
-get libraryGetter => null;
-set librarySetter(x) => x;
-libraryMethod() => null;
-
-typedef bool Predicate(dynamic);
-
-abstract class Interface<I> {
-  operator /(x) => null;
-
-  var interfaceInstanceVariable;
-  get interfaceInstanceGetter;
-  set interfaceInstanceSetter(x);
-  interfaceInstanceMethod();
-
-  static var interfaceStaticVariable;
-  static get interfaceStaticGetter => null;
-  static set interfaceStaticSetter(x) => x;
-  static interfaceStaticMethod() => null;
-}
-
-class Superclass<S> {
-  operator -(x) => null;
-
-  var inheritedInstanceVariable;
-  get inheritedInstanceGetter => null;
-  set inheritedInstanceSetter(x) => x;
-  inheritedInstanceMethod() => null;
-
-  static var inheritedStaticVariable;
-  static get inheritedStaticGetter => null;
-  static set inheritedStaticSetter(x) => x;
-  static inheritedStaticMethod() => null;
-
-  Superclass.inheritedGenerativeConstructor(this.inheritedInstanceVariable);
-  Superclass.inheritedRedirectingConstructor(x)
-      : this.inheritedGenerativeConstructor(x * 2);
-  factory Superclass.inheritedNormalFactory(y) =>
-      new Superclass.inheritedRedirectingConstructor(y * 3);
-  factory Superclass.inheritedRedirectingFactory(z) =
-      Superclass<S>.inheritedNormalFactory;
-}
-
-abstract class Class<C> extends Superclass<C> implements Interface<C> {
-  operator +(x) => null;
-
-  abstractMethod();
-
-  var instanceVariable;
-  get instanceGetter => null;
-  set instanceSetter(x) => x;
-  instanceMethod() => null;
-
-  static var staticVariable;
-  static get staticGetter => null;
-  static set staticSetter(x) => x;
-  static staticMethod() => null;
-
-  Class.generativeConstructor(this.instanceVariable)
-      : super.inheritedGenerativeConstructor(0);
-  Class.redirectingConstructor(x) : this.generativeConstructor(x * 2);
-  factory Class.normalFactory(y) => new ConcreteClass(y * 3);
-  factory Class.redirectingFactory(z) = Class<C>.normalFactory;
-}
-
-// This is just here as a target of Class's factories to appease the analyzer.
-class ConcreteClass<CC> extends Class<CC> {
-  abstractMethod() {}
-
-  operator /(x) => null;
-
-  var interfaceInstanceVariable;
-  get interfaceInstanceGetter => null;
-  set interfaceInstanceSetter(x) => null;
-  interfaceInstanceMethod() => null;
-
-  ConcreteClass(x) : super.generativeConstructor(x);
-}
diff --git a/tests/lib_2/mirrors/declarations_type_test.dart b/tests/lib_2/mirrors/declarations_type_test.dart
deleted file mode 100644
index 829a8f22685..00000000000
--- a/tests/lib_2/mirrors/declarations_type_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for Issue 14972.
-
-library test.declarations_type;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-class C {}
-
-main() {
-  var classDeclarations = reflectClass(C).declarations;
-  Expect.isTrue(classDeclarations is Map<Symbol, DeclarationMirror>);
-  Expect.isTrue(classDeclarations.values is Iterable<DeclarationMirror>);
-  Expect.isTrue(classDeclarations.values.where((x) => true)
-      is Iterable<DeclarationMirror>);
-  Expect.isFalse(classDeclarations is Map<Symbol, MethodMirror>);
-  Expect.isFalse(classDeclarations.values is Iterable<MethodMirror>);
-  Expect.isFalse(
-      classDeclarations.values.where((x) => true) is Iterable<MethodMirror>);
-
-  var libraryDeclarations =
-      (reflectClass(C).owner as LibraryMirror).declarations;
-  Expect.isTrue(libraryDeclarations is Map<Symbol, DeclarationMirror>);
-  Expect.isTrue(libraryDeclarations.values is Iterable<DeclarationMirror>);
-  Expect.isTrue(libraryDeclarations.values.where((x) => true)
-      is Iterable<DeclarationMirror>);
-  Expect.isFalse(libraryDeclarations is Map<Symbol, ClassMirror>);
-  Expect.isFalse(libraryDeclarations.values is Iterable<ClassMirror>);
-  Expect.isFalse(
-      libraryDeclarations.values.where((x) => true) is Iterable<ClassMirror>);
-}
diff --git a/tests/lib_2/mirrors/deferred_constraints_constants_lib.dart b/tests/lib_2/mirrors/deferred_constraints_constants_lib.dart
deleted file mode 100644
index 0217e02b987..00000000000
--- a/tests/lib_2/mirrors/deferred_constraints_constants_lib.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class C {
-  static int staticMethod() => 42;
-}
-
-class G<T> {}
-
-class Const {
-  const Const();
-  const Const.namedConstructor();
-  static const instance = const Const();
-}
-
-const constantInstance = const Const();
diff --git a/tests/lib_2/mirrors/deferred_constraints_constants_test.dart b/tests/lib_2/mirrors/deferred_constraints_constants_test.dart
deleted file mode 100644
index d7a25871970..00000000000
--- a/tests/lib_2/mirrors/deferred_constraints_constants_test.dart
+++ /dev/null
@@ -1,72 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-import 'dart:mirrors';
-
-import "deferred_constraints_constants_lib.dart" deferred as lib;
-
-const myConst1 =
-  lib.constantInstance; //# reference1: compile-time error
-  /* //                   //# reference1: continued
-    499;
-  */ //                   //# reference1: continued
-const myConst2 =
-  lib.Const.instance; //# reference2: compile-time error
-  /* //                 //# reference2: continued
-    499;
-  */ //                 //# reference2: continued
-
-void f1(
-    {a:
-  const lib.Const() //# default_argument1: compile-time error
-  /* //                  //# default_argument1: continued
-        499
-  */ //                  //# default_argument1: continued
-    }) {}
-
-void f2(
-    {a:
-  lib.constantInstance //# default_argument2: compile-time error
-  /* //                        //# default_argument2: continued
-        499
-  */ //                        //# default_argument2: continued
-    }) {}
-
-@lib.Const() //# metadata1: compile-time error
-class H1 {}
-
-@lib.Const.instance //# metadata2: compile-time error
-class H2 {}
-
-@lib.Const.namedConstructor() //# metadata3: compile-time error
-class H3 {}
-
-void main() {
-  var a1 = myConst1;
-  var a2 = myConst2;
-
-  asyncStart();
-  lib.loadLibrary().then((_) {
-    var instance = lib.constantInstance;
-    var c1 = const lib.Const(); //# constructor1: compile-time error
-    var c2 = const lib.Const.namedConstructor(); //# constructor2: compile-time error
-    f1();
-    f2();
-    var constInstance = lib.constantInstance; //# reference_after_load: ok
-    var h1 = new H1();
-    var h2 = new H2();
-    var h3 = new H3();
-
-    // Need to access the metadata to trigger the expected compilation error.
-    reflectClass(H1).metadata; //# metadata1: continued
-    reflectClass(H2).metadata; //# metadata2: continued
-    reflectClass(H3).metadata; //# metadata3: continued
-
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/mirrors/deferred_mirrors_metadata_lib.dart b/tests/lib_2/mirrors/deferred_mirrors_metadata_lib.dart
deleted file mode 100644
index c4f8d0d2501..00000000000
--- a/tests/lib_2/mirrors/deferred_mirrors_metadata_lib.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-
-// @dart = 2.9
-library lib;
-
-import "deferred_mirrors_metadata_test.dart";
-import "dart:mirrors";
-
-class H {
-  const H();
-}
-
-class F {
-  @H()
-  int f = 0;
-}
-
-@C()
-class E {
-  @D()
-  dynamic f;
-}
-
-String foo() {
-  String c = reflectClass(E).metadata[0].invoke(#toString, []).reflectee;
-  String d = reflectClass(E)
-      .declarations[#f]
-      .metadata[0]
-      .invoke(#toString, []).reflectee;
-  InstanceMirror i = currentMirrorSystem().findLibrary(#main).metadata[0];
-  String a = i.invoke(#toString, []).reflectee;
-  String b = i.getField(#b).invoke(#toString, []).reflectee;
-  return a + b + c + d;
-}
diff --git a/tests/lib_2/mirrors/deferred_mirrors_metadata_test.dart b/tests/lib_2/mirrors/deferred_mirrors_metadata_test.dart
deleted file mode 100644
index 597dd4ecf6e..00000000000
--- a/tests/lib_2/mirrors/deferred_mirrors_metadata_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@A(const B())
-library main;
-
-@B()
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-import "dart:math";
-
-import 'deferred_mirrors_metadata_lib.dart' deferred as lib1;
-
-class A {
-  final B b;
-  const A(this.b);
-  String toString() => "A";
-}
-
-class B {
-  const B();
-  String toString() => "B";
-}
-
-class C {
-  const C();
-  String toString() => "C";
-}
-
-class D {
-  const D();
-  String toString() => "D";
-}
-
-void main() {
-  asyncStart();
-  lib1.loadLibrary().then((_) {
-    Expect.equals("ABCD", lib1.foo());
-    new C();
-    new D();
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/mirrors/deferred_mirrors_metatarget_lib.dart b/tests/lib_2/mirrors/deferred_mirrors_metatarget_lib.dart
deleted file mode 100644
index cf0a6dd8f64..00000000000
--- a/tests/lib_2/mirrors/deferred_mirrors_metatarget_lib.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib;
-
-import "dart:mirrors";
-
-class MetaTarget {
-  const MetaTarget();
-}
-
-@MetaTarget()
-class A {
-  String toString() => "A";
-}
-
-String foo() {
-  final a =
-      currentMirrorSystem().findLibrary(#lib).declarations[#A] as ClassMirror;
-  return a.newInstance(Symbol.empty, []).invoke(#toString, []).reflectee;
-}
diff --git a/tests/lib_2/mirrors/deferred_mirrors_metatarget_test.dart b/tests/lib_2/mirrors/deferred_mirrors_metatarget_test.dart
deleted file mode 100644
index b78c251fea3..00000000000
--- a/tests/lib_2/mirrors/deferred_mirrors_metatarget_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Test that metaTargets can be reached via the mirrorSystem.
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-import "deferred_mirrors_metatarget_lib.dart" deferred as lib;
-
-void main() {
-  asyncStart();
-  lib.loadLibrary().then((_) {
-    Expect.equals("A", lib.foo());
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/mirrors/deferred_mirrors_update_lib.dart b/tests/lib_2/mirrors/deferred_mirrors_update_lib.dart
deleted file mode 100644
index 30718d2b88a..00000000000
--- a/tests/lib_2/mirrors/deferred_mirrors_update_lib.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-
-// @dart = 2.9
-library lib;
-
-import "dart:mirrors";
-
-class C {}
-
-foo() {
-  var a = new C();
-  print(reflectClass(C).owner);
-}
diff --git a/tests/lib_2/mirrors/deferred_mirrors_update_test.dart b/tests/lib_2/mirrors/deferred_mirrors_update_test.dart
deleted file mode 100644
index 16af23643fd..00000000000
--- a/tests/lib_2/mirrors/deferred_mirrors_update_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-
-// @dart = 2.9
-library main;
-
-// Test that the library-mirrors are updated after loading a deferred library.
-
-import "dart:mirrors";
-
-import "deferred_mirrors_update_lib.dart" deferred as l;
-
-class D {}
-
-void main() {
-  print(reflectClass(D).owner);
-  l.loadLibrary().then((_) {
-    l.foo();
-  });
-}
diff --git a/tests/lib_2/mirrors/deferred_type_other.dart b/tests/lib_2/mirrors/deferred_type_other.dart
deleted file mode 100644
index 19b5ef7ec8b..00000000000
--- a/tests/lib_2/mirrors/deferred_type_other.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library deferred_type_other;
-
-class DeferredType {}
diff --git a/tests/lib_2/mirrors/deferred_type_test.dart b/tests/lib_2/mirrors/deferred_type_test.dart
deleted file mode 100644
index 806af88ee61..00000000000
--- a/tests/lib_2/mirrors/deferred_type_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library deferred_type;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-import 'deferred_type_other.dart' deferred as other;
-
-bad(other.DeferredType x) {}
-
-main() {
-  print((reflect(bad) as ClosureMirror).function.parameters[0].type);
-  throw "Should have died sooner. other.DeferredType is not loaded";
-}
diff --git a/tests/lib_2/mirrors/delegate_call_through_getter_test.dart b/tests/lib_2/mirrors/delegate_call_through_getter_test.dart
deleted file mode 100644
index 120555747c5..00000000000
--- a/tests/lib_2/mirrors/delegate_call_through_getter_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.invoke_call_through_getter;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class FakeFunctionCall {
-  call(x, y) => '1 $x $y';
-}
-
-class FakeFunctionNSM {
-  noSuchMethod(msg) => msg.positionalArguments.join(', ');
-}
-
-class C {
-  get fakeFunctionCall => new FakeFunctionCall();
-  get fakeFunctionNSM => new FakeFunctionNSM();
-  get closure => (x, y) => '2 $this $x $y';
-  get closureOpt => (x, y, [z, w]) => '3 $this $x $y $z $w';
-  get closureNamed => (x, y, {z, w}) => '4 $this $x $y $z $w';
-  get notAClosure => 'Not a closure';
-  noSuchMethod(msg) => 'DNU';
-
-  toString() => 'C';
-}
-
-class Forwarder {
-  dynamic noSuchMethod(Invocation msg) => reflect(new C()).delegate(msg);
-}
-
-main() {
-  dynamic f = new Forwarder();
-
-  Expect.equals('1 5 6', f.fakeFunctionCall(5, 6));
-  Expect.equals('7, 8', f.fakeFunctionNSM(7, 8));
-  Expect.equals('2 C 9 10', f.closure(9, 10));
-  Expect.equals('3 C 11 12 13 null', f.closureOpt(11, 12, 13));
-  Expect.equals('4 C 14 15 null 16', f.closureNamed(14, 15, w: 16));
-  Expect.equals('DNU', f.doesNotExist(17, 18));
-  Expect.throwsNoSuchMethodError(() => f.closure('wrong arity'));
-  Expect.throwsNoSuchMethodError(() => f.notAClosure());
-}
diff --git a/tests/lib_2/mirrors/delegate_class_test.dart b/tests/lib_2/mirrors/delegate_class_test.dart
deleted file mode 100644
index 52c62ea8fc8..00000000000
--- a/tests/lib_2/mirrors/delegate_class_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.delegate_class;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class C {
-  static method(a, b, c) => "$a-$b-$c";
-  static methodWithNamed(a, {b: 'B', c}) => "$a-$b-$c";
-  static methodWithOpt(a, [b, c = 'C']) => "$a-$b-$c";
-  static get getter => 'g';
-  static set setter(x) {
-    field = x * 2;
-  }
-
-  static var field;
-}
-
-class Proxy {
-  var targetMirror;
-  Proxy(this.targetMirror);
-  noSuchMethod(invocation) => targetMirror.delegate(invocation);
-}
-
-main() {
-  dynamic proxy = new Proxy(reflectClass(C));
-  var result;
-
-  Expect.equals('X-Y-Z', proxy.method('X', 'Y', 'Z'));
-
-  Expect.equals('X-B-null', proxy.methodWithNamed('X'));
-  Expect.equals('X-Y-null', proxy.methodWithNamed('X', b: 'Y'));
-  Expect.equals('X-Y-Z', proxy.methodWithNamed('X', b: 'Y', c: 'Z'));
-
-  Expect.equals('X-null-C', proxy.methodWithOpt('X'));
-  Expect.equals('X-Y-C', proxy.methodWithOpt('X', 'Y'));
-  Expect.equals('X-Y-Z', proxy.methodWithOpt('X', 'Y', 'Z'));
-
-  Expect.equals('g', proxy.getter);
-
-  Expect.equals(5, proxy.setter = 5);
-  Expect.equals(10, proxy.field);
-
-  Expect.equals(5, proxy.field = 5);
-  Expect.equals(5, proxy.field);
-}
diff --git a/tests/lib_2/mirrors/delegate_function_invocation_test.dart b/tests/lib_2/mirrors/delegate_function_invocation_test.dart
deleted file mode 100644
index 58bfefbb65a..00000000000
--- a/tests/lib_2/mirrors/delegate_function_invocation_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.delegate_function_invocation;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class Proxy {
-  var targetMirror;
-  Proxy(target) : this.targetMirror = reflect(target);
-  noSuchMethod(invocation) => targetMirror.delegate(invocation);
-}
-
-testClosure() {
-  dynamic proxy = new Proxy(() => 42);
-  Expect.equals(42, proxy());
-  Expect.equals(42, proxy.call());
-}
-
-class FakeFunction {
-  call() => 43;
-}
-
-testFakeFunction() {
-  dynamic proxy = new Proxy(new FakeFunction());
-  Expect.equals(43, proxy());
-  Expect.equals(43, proxy.call());
-}
-
-topLevelFunction() => 44;
-
-testTopLevelTearOff() {
-  dynamic proxy = new Proxy(topLevelFunction);
-  Expect.equals(44, proxy());
-  Expect.equals(44, proxy.call());
-}
-
-class C {
-  method() => 45;
-}
-
-testInstanceTearOff() {
-  dynamic proxy = new Proxy(new C().method);
-  Expect.equals(45, proxy());
-  Expect.equals(45, proxy.call());
-}
-
-main() {
-  testClosure();
-  testFakeFunction();
-  testTopLevelTearOff();
-  testInstanceTearOff();
-}
diff --git a/tests/lib_2/mirrors/delegate_library_test.dart b/tests/lib_2/mirrors/delegate_library_test.dart
deleted file mode 100644
index ebbf7eb5db9..00000000000
--- a/tests/lib_2/mirrors/delegate_library_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.delegate_library;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-method(a, b, c) => "$a-$b-$c";
-methodWithNamed(a, {b: 'B', c}) => "$a-$b-$c";
-methodWithOpt(a, [b, c = 'C']) => "$a-$b-$c";
-get getter => 'g';
-set setter(x) {
-  field = x * 2;
-}
-
-var field;
-
-class Proxy {
-  var targetMirror;
-  Proxy(this.targetMirror);
-  noSuchMethod(invocation) => targetMirror.delegate(invocation);
-}
-
-main() {
-  dynamic proxy = new Proxy(reflectClass(Proxy).owner);
-  var result;
-
-  Expect.equals('X-Y-Z', proxy.method('X', 'Y', 'Z'));
-
-  Expect.equals('X-B-null', proxy.methodWithNamed('X'));
-  Expect.equals('X-Y-null', proxy.methodWithNamed('X', b: 'Y'));
-  Expect.equals('X-Y-Z', proxy.methodWithNamed('X', b: 'Y', c: 'Z'));
-
-  Expect.equals('X-null-C', proxy.methodWithOpt('X'));
-  Expect.equals('X-Y-C', proxy.methodWithOpt('X', 'Y'));
-  Expect.equals('X-Y-Z', proxy.methodWithOpt('X', 'Y', 'Z'));
-
-  Expect.equals('g', proxy.getter);
-
-  Expect.equals(5, proxy.setter = 5);
-  Expect.equals(10, proxy.field);
-
-  Expect.equals(5, proxy.field = 5);
-  Expect.equals(5, proxy.field);
-}
diff --git a/tests/lib_2/mirrors/delegate_test.dart b/tests/lib_2/mirrors/delegate_test.dart
deleted file mode 100644
index 131acdac418..00000000000
--- a/tests/lib_2/mirrors/delegate_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.invoke_named_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class C {
-  method(a, b, c) => "$a-$b-$c";
-  methodWithNamed(a, {b: 'B', c}) => "$a-$b-$c";
-  methodWithOpt(a, [b, c = 'C']) => "$a-$b-$c";
-  get getter => 'g';
-  set setter(x) {
-    field = x * 2;
-  }
-
-  var field;
-}
-
-class Proxy {
-  var targetMirror;
-  Proxy(target) : this.targetMirror = reflect(target);
-  noSuchMethod(invocation) => targetMirror.delegate(invocation);
-}
-
-main() {
-  var c = new C();
-  dynamic proxy = new Proxy(c);
-  var result;
-
-  Expect.equals('X-Y-Z', proxy.method('X', 'Y', 'Z'));
-
-  Expect.equals('X-B-null', proxy.methodWithNamed('X'));
-  Expect.equals('X-Y-null', proxy.methodWithNamed('X', b: 'Y'));
-  Expect.equals('X-Y-Z', proxy.methodWithNamed('X', b: 'Y', c: 'Z'));
-
-  Expect.equals('X-null-C', proxy.methodWithOpt('X'));
-  Expect.equals('X-Y-C', proxy.methodWithOpt('X', 'Y'));
-  Expect.equals('X-Y-Z', proxy.methodWithOpt('X', 'Y', 'Z'));
-
-  Expect.equals('g', proxy.getter);
-
-  Expect.equals(5, proxy.setter = 5);
-  Expect.equals(10, proxy.field);
-
-  Expect.equals(5, proxy.field = 5);
-  Expect.equals(5, proxy.field);
-}
diff --git a/tests/lib_2/mirrors/disable_tree_shaking_test.dart b/tests/lib_2/mirrors/disable_tree_shaking_test.dart
deleted file mode 100644
index e4abdbbed58..00000000000
--- a/tests/lib_2/mirrors/disable_tree_shaking_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Ensure that reflection works on methods that would otherwise be
-// tree-shaken away.
-
-import "dart:mirrors";
-
-class Foo {
-  Foo();
-  foo() => 42;
-}
-
-main() {
-  // Do NOT instantiate Foo.
-  var m = reflectClass(Foo);
-  var instanceMirror = m.newInstance(new Symbol(''), []);
-  var result = instanceMirror.invoke(new Symbol('foo'), []).reflectee;
-  if (result != 42) {
-    throw 'Expected 42, but got $result';
-  }
-}
diff --git a/tests/lib_2/mirrors/dynamic_load_error.dart b/tests/lib_2/mirrors/dynamic_load_error.dart
deleted file mode 100644
index dd88c1c5344..00000000000
--- a/tests/lib_2/mirrors/dynamic_load_error.dart
+++ /dev/null
@@ -1,8 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// A top-level parse error:
-import import import import
diff --git a/tests/lib_2/mirrors/dynamic_load_success.dart b/tests/lib_2/mirrors/dynamic_load_success.dart
deleted file mode 100644
index ec6693b2053..00000000000
--- a/tests/lib_2/mirrors/dynamic_load_success.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library dynamic_load_success;
-
-int _counter = 0;
-
-advanceCounter() => ++_counter;
diff --git a/tests/lib_2/mirrors/dynamic_load_test.dart b/tests/lib_2/mirrors/dynamic_load_test.dart
deleted file mode 100644
index 5b7d9f02051..00000000000
--- a/tests/lib_2/mirrors/dynamic_load_test.dart
+++ /dev/null
@@ -1,85 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-main() async {
-  IsolateMirror isolate = currentMirrorSystem().isolate;
-  print(isolate);
-
-  LibraryMirror success =
-      await isolate.loadUri(Uri.parse("dynamic_load_success.dart"));
-  print(success);
-  InstanceMirror result = success.invoke(#advanceCounter, []);
-  print(result);
-  Expect.equals(1, result.reflectee);
-  result = success.invoke(#advanceCounter, []);
-  print(result);
-  Expect.equals(2, result.reflectee);
-
-  LibraryMirror success2 =
-      await isolate.loadUri(Uri.parse("dynamic_load_success.dart"));
-  print(success2);
-  Expect.equals(success, success2);
-  result = success2.invoke(#advanceCounter, []);
-  print(result);
-  Expect.equals(3, result.reflectee); // Same library, same state.
-
-  LibraryMirror math = await isolate.loadUri(Uri.parse("dart:math"));
-  result = math.invoke(#max, [3, 4]);
-  print(result);
-  Expect.equals(4, result.reflectee);
-
-  Future<LibraryMirror> bad_load = isolate.loadUri(Uri.parse("DOES_NOT_EXIST"));
-  var error;
-  try {
-    await bad_load;
-  } catch (e) {
-    error = e;
-  }
-  print(error);
-  Expect.isTrue(error.toString().contains("Cannot open file") ||
-      error.toString().contains("file not found") ||
-      error.toString().contains("No such file or directory") ||
-      error.toString().contains("The system cannot find the file specified"));
-  Expect.isTrue(error.toString().contains("DOES_NOT_EXIST"));
-
-  Future<LibraryMirror> bad_load2 = isolate.loadUri(Uri.parse("dart:_builtin"));
-  var error2;
-  try {
-    await bad_load2;
-  } catch (e) {
-    error2 = e;
-  }
-  print(error2);
-  Expect.isTrue(error2.toString().contains("Cannot load"));
-  Expect.isTrue(error2.toString().contains("dart:_builtin"));
-
-  // Check error is not sticky.
-  LibraryMirror success3 =
-      await isolate.loadUri(Uri.parse("dynamic_load_success.dart"));
-  print(success3);
-  Expect.equals(success, success3);
-  result = success3.invoke(#advanceCounter, []);
-  print(result);
-  Expect.equals(4, result.reflectee); // Same library, same state.
-
-  Future<LibraryMirror> bad_load3 =
-      isolate.loadUri(Uri.parse("dynamic_load_error.dart"));
-  var error3;
-  try {
-    await bad_load3;
-  } catch (e) {
-    error3 = e;
-  }
-  print(error3);
-  Expect.isTrue(error3.toString().contains("library url expected") ||
-      error3.toString().contains("Error: Expected a String"));
-  Expect.isTrue(error3.toString().contains("dynamic_load_error.dart"));
-}
diff --git a/tests/lib_2/mirrors/empty.dart b/tests/lib_2/mirrors/empty.dart
deleted file mode 100644
index dd5a50c0c30..00000000000
--- a/tests/lib_2/mirrors/empty.dart
+++ /dev/null
@@ -1,8 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This library has no functions.
-library empty;
diff --git a/tests/lib_2/mirrors/empty_test.dart b/tests/lib_2/mirrors/empty_test.dart
deleted file mode 100644
index 7d562b4733e..00000000000
--- a/tests/lib_2/mirrors/empty_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors';
-import 'empty.dart';
-
-main() {
-  var empty = currentMirrorSystem().findLibrary(#empty);
-  print(empty.location); // Used to crash VM.
-}
diff --git a/tests/lib_2/mirrors/enum_mirror_test.dart b/tests/lib_2/mirrors/enum_mirror_test.dart
deleted file mode 100644
index f0c9fd21844..00000000000
--- a/tests/lib_2/mirrors/enum_mirror_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-enum Foo { BAR, BAZ }
-
-main() {
-  Expect.equals('Foo.BAR', Foo.BAR.toString());
-  var name = reflect(Foo.BAR).invoke(#toString, []).reflectee;
-  Expect.equals('Foo.BAR', name);
-}
diff --git a/tests/lib_2/mirrors/enum_test.dart b/tests/lib_2/mirrors/enum_test.dart
deleted file mode 100644
index a807b924376..00000000000
--- a/tests/lib_2/mirrors/enum_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.enums;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-import 'stringify.dart';
-
-class C {}
-
-enum Suite { CLUBS, DIAMONDS, SPADES, HEARTS }
-
-main() {
-  Expect.isFalse(reflectClass(C).isEnum);
-
-  Expect.isTrue(reflectClass(Suite).isEnum);
-  Expect.isFalse(reflectClass(Suite).isAbstract);
-  Expect.equals(
-      0,
-      reflectClass(Suite)
-          .declarations
-          .values
-          .where((d) => d is MethodMirror && d.isConstructor)
-          .length);
-
-  Expect.equals(
-      reflectClass(Suite),
-      (reflectClass(C).owner as LibraryMirror).declarations[#Suite],
-      "found in library");
-
-  Expect.equals(reflectClass(Suite), reflect(Suite.CLUBS).type);
-
-  Expect.equals(0, reflect(Suite.CLUBS).getField(#index).reflectee);
-  Expect.equals(1, reflect(Suite.DIAMONDS).getField(#index).reflectee);
-  Expect.equals(2, reflect(Suite.SPADES).getField(#index).reflectee);
-  Expect.equals(3, reflect(Suite.HEARTS).getField(#index).reflectee);
-
-  Expect.equals(
-      "Suite.CLUBS", reflect(Suite.CLUBS).invoke(#toString, []).reflectee);
-  Expect.equals("Suite.DIAMONDS",
-      reflect(Suite.DIAMONDS).invoke(#toString, []).reflectee);
-  Expect.equals(
-      "Suite.SPADES", reflect(Suite.SPADES).invoke(#toString, []).reflectee);
-  Expect.equals(
-      "Suite.HEARTS", reflect(Suite.HEARTS).invoke(#toString, []).reflectee);
-
-  Expect.setEquals(
-      [
-        'Variable(s(index) in s(Suite), final)',
-        'Variable(s(CLUBS) in s(Suite), static, final)',
-        'Variable(s(DIAMONDS) in s(Suite), static, final)',
-        'Variable(s(SPADES) in s(Suite), static, final)',
-        'Variable(s(HEARTS) in s(Suite), static, final)',
-        'Variable(s(values) in s(Suite), static, final)',
-        'Method(s(hashCode) in s(Suite), getter)',
-        'Method(s(toString) in s(Suite))'
-      ],
-      reflectClass(Suite)
-          .declarations
-          .values
-          .where((d) => !d.isPrivate)
-          .map(stringify));
-}
diff --git a/tests/lib_2/mirrors/equality_test.dart b/tests/lib_2/mirrors/equality_test.dart
deleted file mode 100644
index 67b0a907eef..00000000000
--- a/tests/lib_2/mirrors/equality_test.dart
+++ /dev/null
@@ -1,161 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This tests uses the multi-test "ok" feature:
-// none: Trimmed behaviour. Passing on the VM.
-// 01: Trimmed version for dart2js.
-// 02: Full version passing in the VM.
-//
-// TODO(rmacnak,ahe): Remove multi-test when VM and dart2js are on par.
-
-library test.class_equality_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class A<T> {}
-
-class B extends A<int> {}
-
-class BadEqualityHash {
-  int count = 0;
-  bool operator ==(other) => true;
-  int get hashCode => count++;
-}
-
-typedef bool Predicate(Object o);
-Predicate somePredicate = (Object o) => false;
-
-checkEquality(List<Map<String, Object>> equivalenceClasses) {
-  for (var equivalenceClass in equivalenceClasses) {
-    equivalenceClass.forEach((name, member) {
-      equivalenceClass.forEach((otherName, otherMember) {
-        // Reflexivity, symmetry and transitivity.
-        Expect.equals(member, otherMember, "$name == $otherName");
-        Expect.equals(member.hashCode, otherMember.hashCode,
-            "$name.hashCode == $otherName.hashCode");
-      });
-      for (var otherEquivalenceClass in equivalenceClasses) {
-        if (otherEquivalenceClass == equivalenceClass) continue;
-        otherEquivalenceClass.forEach((otherName, otherMember) {
-          Expect.notEquals(
-              member, otherMember, "$name != $otherName"); // Exclusion.
-          // Hash codes may or may not be equal.
-        });
-      }
-    });
-  }
-}
-
-void subroutine() {}
-
-main() {
-  LibraryMirror thisLibrary = currentMirrorSystem()
-      .findLibrary(const Symbol('test.class_equality_test'));
-
-  var o1 = new Object();
-  var o2 = new Object();
-
-  var badEqualityHash1 = new BadEqualityHash();
-  var badEqualityHash2 = new BadEqualityHash();
-
-  checkEquality(<Map<String, Object>>[
-    {'reflect(o1)': reflect(o1), 'reflect(o1), again': reflect(o1)},
-    {'reflect(o2)': reflect(o2), 'reflect(o2), again': reflect(o2)},
-    {
-      'reflect(badEqualityHash1)': reflect(badEqualityHash1),
-      'reflect(badEqualityHash1), again': reflect(badEqualityHash1)
-    },
-    {
-      'reflect(badEqualityHash2)': reflect(badEqualityHash2),
-      'reflect(badEqualityHash2), again': reflect(badEqualityHash2)
-    },
-    {'reflect(true)': reflect(true), 'reflect(true), again': reflect(true)},
-    {'reflect(false)': reflect(false), 'reflect(false), again': reflect(false)},
-    {'reflect(null)': reflect(null), 'reflect(null), again': reflect(null)},
-    {
-      'reflect(3.5+4.5)': reflect(3.5 + 4.5),
-      'reflect(6.5+1.5)': reflect(6.5 + 1.5)
-    },
-    {'reflect(3+4)': reflect(3 + 4), 'reflect(6+1)': reflect(6 + 1)},
-    {'reflect("foo")': reflect("foo"), 'reflect("foo"), again': reflect("foo")},
-    {
-      'currentMirrorSystem().voidType': currentMirrorSystem().voidType,
-      'thisLibrary.declarations[#subroutine].returnType':
-          (thisLibrary.declarations[#subroutine] as MethodMirror).returnType
-    },
-    {
-      'currentMirrorSystem().dynamicType': currentMirrorSystem().dynamicType,
-      'thisLibrary.declarations[#main].returnType':
-          (thisLibrary.declarations[#main] as MethodMirror).returnType
-    },
-    {
-      'reflectClass(A)': reflectClass(A),
-      'thisLibrary.declarations[#A]': thisLibrary.declarations[#A],
-      'reflect(new A<int>()).type.originalDeclaration':
-          reflect(new A<int>()).type.originalDeclaration
-    },
-    {
-      'reflectClass(B).superclass': reflectClass(B).superclass,
-      'reflect(new A<int>()).type': reflect(new A<int>()).type
-    },
-    {
-      'reflectClass(B)': reflectClass(B),
-      'thisLibrary.declarations[#B]': thisLibrary.declarations[#B],
-      'reflect(new B()).type': reflect(new B()).type
-    },
-    {
-      'reflectClass(BadEqualityHash).declarations[#==]':
-          reflectClass(BadEqualityHash).declarations[#==],
-      'reflect(new BadEqualityHash()).type.declarations[#==]':
-          reflect(new BadEqualityHash()).type.declarations[#==]
-    },
-    {
-      'reflectClass(BadEqualityHash).declarations[#==].parameters[0]':
-          (reflectClass(BadEqualityHash).declarations[#==] as MethodMirror)
-              .parameters[0],
-      'reflect(new BadEqualityHash()).type.declarations[#==].parameters[0]':
-          (reflect(new BadEqualityHash()).type.declarations[#==]
-                  as MethodMirror)
-              .parameters[0]
-    },
-    {
-      'reflectClass(BadEqualityHash).declarations[#count]':
-          reflectClass(BadEqualityHash).declarations[#count],
-      'reflect(new BadEqualityHash()).type.declarations[#count]':
-          reflect(new BadEqualityHash()).type.declarations[#count]
-    },
-    {
-      'reflectType(Predicate)': reflectType(Predicate),
-      'thisLibrary.declarations[#somePredicate].type':
-          (thisLibrary.declarations[#somePredicate] as VariableMirror).type
-    },
-    {
-      'reflectType(Predicate).referent':
-          (reflectType(Predicate) as TypedefMirror).referent,
-      'thisLibrary.declarations[#somePredicate].type.referent':
-          ((thisLibrary.declarations[#somePredicate] as VariableMirror).type
-                  as TypedefMirror)
-              .referent
-    },
-    {
-      'reflectClass(A).typeVariables.single':
-          reflectClass(A).typeVariables.single,
-      'reflect(new A<int>()).type.originalDeclaration.typeVariables.single':
-          reflect(new A<int>()).type.originalDeclaration.typeVariables.single
-    },
-    {'currentMirrorSystem()': currentMirrorSystem()},
-    {'currentMirrorSystem().isolate': currentMirrorSystem().isolate},
-    {
-      'thisLibrary': thisLibrary,
-      'reflectClass(A).owner': reflectClass(A).owner,
-      'reflectClass(B).owner': reflectClass(B).owner,
-      'reflect(new A()).type.owner': reflect(new A()).type.owner,
-      'reflect(new B()).type.owner': reflect(new B()).type.owner
-    },
-  ]);
-}
diff --git a/tests/lib_2/mirrors/fake_function_with_call_test.dart b/tests/lib_2/mirrors/fake_function_with_call_test.dart
deleted file mode 100644
index ffa10969aac..00000000000
--- a/tests/lib_2/mirrors/fake_function_with_call_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:mirrors";
-
-import "package:expect/expect.dart";
-
-membersOf(ClassMirror cm) {
-  var result = new Map();
-  cm.declarations.forEach((k, v) {
-    if (v is MethodMirror && !v.isConstructor) result[k] = v;
-    if (v is VariableMirror) result[k] = v;
-  });
-  return result;
-}
-
-class WannabeFunction {
-  int call(int a, int b) => a + b;
-  method(x) => x * x;
-}
-
-main() {
-  Expect.isTrue(new WannabeFunction() is Function);
-
-  ClosureMirror cm = reflect(new WannabeFunction()) as ClosureMirror;
-  Expect.equals(7, cm.invoke(#call, [3, 4]).reflectee);
-  Expect.throwsNoSuchMethodError(() => cm.invoke(#call, [3]), "Wrong arity");
-  Expect.equals(49, cm.invoke(#method, [7]).reflectee);
-  Expect.throwsNoSuchMethodError(() => cm.invoke(#method, [3, 4]),
-      "Wrong arity");
-  Expect.equals(7, cm.apply([3, 4]).reflectee);
-  Expect.throwsNoSuchMethodError(() => cm.apply([3]), "Wrong arity");
-
-  MethodMirror mm = cm.function;
-  Expect.equals(#call, mm.simpleName);
-  Expect.equals(reflectClass(WannabeFunction), mm.owner);
-  Expect.isTrue(mm.isRegularMethod);
-  Expect.equals(#int, mm.returnType.simpleName);
-  Expect.equals(#int, mm.parameters[0].type.simpleName);
-  Expect.equals(#int, mm.parameters[1].type.simpleName);
-
-  ClassMirror km = cm.type;
-  Expect.equals(reflectClass(WannabeFunction), km);
-  Expect.equals(#WannabeFunction, km.simpleName);
-  Expect.equals(mm.hashCode, km.declarations[#call].hashCode);
-  Expect.setEquals([#call, #method], membersOf(km).keys);
-}
diff --git a/tests/lib_2/mirrors/fake_function_without_call_test.dart b/tests/lib_2/mirrors/fake_function_without_call_test.dart
deleted file mode 100644
index 9fbeef56ec0..00000000000
--- a/tests/lib_2/mirrors/fake_function_without_call_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:mirrors";
-
-import "package:expect/expect.dart";
-
-class MultiArityFunction implements Function {
-  noSuchMethod(Invocation msg) {
-    if (msg.memberName != #call) return super.noSuchMethod(msg);
-    return msg.positionalArguments.join(",");
-  }
-}
-
-main() {
-  dynamic f = new MultiArityFunction();
-
-  Expect.isTrue(f is Function);
-  Expect.equals('a', f('a'));
-  Expect.equals('a,b', f('a', 'b'));
-  Expect.equals('a,b,c', f('a', 'b', 'c'));
-  Expect.equals('a', Function.apply(f, ['a']));
-  Expect.equals('a,b', Function.apply(f, ['a', 'b']));
-  Expect.equals('a,b,c', Function.apply(f, ['a', 'b', 'c']));
-  Expect.throwsNoSuchMethodError(() => f.foo('a', 'b', 'c'));
-
-  ClosureMirror cm = reflect(f) as ClosureMirror;
-  Expect.isTrue(cm is ClosureMirror);
-  Expect.equals('a', cm.apply(['a']).reflectee);
-  Expect.equals('a,b', cm.apply(['a', 'b']).reflectee);
-  Expect.equals('a,b,c', cm.apply(['a', 'b', 'c']).reflectee);
-
-  MethodMirror mm = cm.function;
-  Expect.isNull(mm);
-
-  ClassMirror km = cm.type;
-  Expect.equals(reflectClass(MultiArityFunction), km);
-}
diff --git a/tests/lib_2/mirrors/field_metadata_test.dart b/tests/lib_2/mirrors/field_metadata_test.dart
deleted file mode 100644
index c3e2adefc3e..00000000000
--- a/tests/lib_2/mirrors/field_metadata_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-class Bar {
-  final String name;
-
-  const Bar(this.name);
-}
-
-class Foo {
-  @Bar('bar')
-  int x = 40;
-
-  @Bar('baz')
-  final String y = 'hi';
-
-  @Bar('foo')
-  void set z(int val) {
-    x = val;
-  }
-}
-
-void main() {
-  dynamic f = new Foo();
-  f.x += 2;
-  Expect.equals(f.x, 42);
-  Expect.equals(f.y, 'hi');
-
-  f.z = 0;
-  Expect.equals(f.x, 0);
-
-  var members = reflect(f).type.declarations;
-  var x = members[#x] as VariableMirror;
-  var y = members[#y] as VariableMirror;
-  Expect.equals(x.type.simpleName, #int);
-  Expect.equals(y.type.simpleName, #String);
-}
diff --git a/tests/lib_2/mirrors/field_type_test.dart b/tests/lib_2/mirrors/field_type_test.dart
deleted file mode 100644
index a5b846eff39..00000000000
--- a/tests/lib_2/mirrors/field_type_test.dart
+++ /dev/null
@@ -1,87 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library field_test;
-
-import 'dart:mirrors';
-import "package:expect/expect.dart";
-
-String toplevelVariable = "";
-
-class C {
-  final int i;
-  const C(this.i);
-}
-
-class A<T> {
-  static int staticField = 0;
-  @C(42)
-  @C(44)
-  String field = "";
-  var dynamicTypeField;
-  T typeVariableField;
-  H<int> parameterizedTypeField;
-}
-
-class H<T> {}
-
-testOriginalDeclaration() {
-  ClassMirror a = reflectClass(A);
-  VariableMirror staticField = a.declarations[#staticField] as VariableMirror;
-  VariableMirror field = a.declarations[#field] as VariableMirror;
-  VariableMirror dynamicTypeField =
-      a.declarations[#dynamicTypeField] as VariableMirror;
-  VariableMirror typeVariableField =
-      a.declarations[#typeVariableField] as VariableMirror;
-  VariableMirror parameterizedTypeField =
-      a.declarations[#parameterizedTypeField] as VariableMirror;
-
-  Expect.equals(reflectType(int), staticField.type);
-  Expect.equals(reflectClass(String), field.type);
-  Expect.equals(reflectType(dynamic), dynamicTypeField.type);
-  Expect.equals(a.typeVariables.single, typeVariableField.type);
-  Expect.equals(reflect(new H<int>()).type, parameterizedTypeField.type);
-
-  Expect.equals(2, field.metadata.length);
-  Expect.equals(reflect(const C(42)), field.metadata.first);
-  Expect.equals(reflect(const C(44)), field.metadata.last);
-}
-
-testInstance() {
-  ClassMirror aOfString = reflect(new A<String>()).type;
-  VariableMirror staticField =
-      aOfString.declarations[#staticField] as VariableMirror;
-  VariableMirror field = aOfString.declarations[#field] as VariableMirror;
-  VariableMirror dynamicTypeField =
-      aOfString.declarations[#dynamicTypeField] as VariableMirror;
-  VariableMirror typeVariableField =
-      aOfString.declarations[#typeVariableField] as VariableMirror;
-  VariableMirror parameterizedTypeField =
-      aOfString.declarations[#parameterizedTypeField] as VariableMirror;
-
-  Expect.equals(reflectType(int), staticField.type);
-  Expect.equals(reflectClass(String), field.type);
-  Expect.equals(reflectType(dynamic), dynamicTypeField.type);
-  Expect.equals(reflectClass(String), typeVariableField.type);
-  Expect.equals(reflect(new H<int>()).type, parameterizedTypeField.type);
-
-  Expect.equals(2, field.metadata.length);
-  Expect.equals(reflect(const C(42)), field.metadata.first);
-  Expect.equals(reflect(const C(44)), field.metadata.last);
-}
-
-testTopLevel() {
-  LibraryMirror currentLibrary = currentMirrorSystem().findLibrary(#field_test);
-  VariableMirror topLevel =
-      currentLibrary.declarations[#toplevelVariable] as VariableMirror;
-  Expect.equals(reflectClass(String), topLevel.type);
-}
-
-main() {
-  testOriginalDeclaration();
-  testInstance();
-  testTopLevel();
-}
diff --git a/tests/lib_2/mirrors/function_apply_mirrors_lib.dart b/tests/lib_2/mirrors/function_apply_mirrors_lib.dart
deleted file mode 100644
index 356f698cb98..00000000000
--- a/tests/lib_2/mirrors/function_apply_mirrors_lib.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library function_apply_mirrors_lib;
-
-import "dart:mirrors";
-
-bar() => reflect(499).reflectee;
diff --git a/tests/lib_2/mirrors/function_apply_mirrors_test.dart b/tests/lib_2/mirrors/function_apply_mirrors_test.dart
deleted file mode 100644
index c3aa1239389..00000000000
--- a/tests/lib_2/mirrors/function_apply_mirrors_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Only 'lib' imports mirrors.
-// Function.apply is resolved, before it is known that mirrors are used.
-// Dart2js has different implementations of Function.apply for different
-// emitters (like --fast-startup). Dart2js must not switch the resolved
-// Function.apply when it discovers the use of mirrors.
-// In particular it must not switch from the fast-startup emitter to the full
-// emitter without updating the Function.apply reference.
-import 'function_apply_mirrors_lib.dart' as lib;
-
-import "package:expect/expect.dart";
-
-int foo({x: 499, y: 42}) => x + y;
-
-main() {
-  Expect.equals(709, Function.apply(foo, [], {#y: 210}));
-  Expect.equals(499, lib.bar());
-}
diff --git a/tests/lib_2/mirrors/function_apply_test.dart b/tests/lib_2/mirrors/function_apply_test.dart
deleted file mode 100644
index 22adc986332..00000000000
--- a/tests/lib_2/mirrors/function_apply_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib;
-
-import "dart:mirrors";
-
-import "package:expect/expect.dart";
-
-class A {
-  call(int x) => 123 + x;
-  bar(int y) => 321 + y;
-}
-
-foo(int y) => 456 + y;
-
-main() {
-  // Static function.
-  ClosureMirror f1 = reflect(foo) as ClosureMirror;
-  Expect.equals(1456, f1.apply([1000]).reflectee);
-
-  // Local declaration.
-  chomp(int z) => z + 42;
-  ClosureMirror f2 = reflect(chomp) as ClosureMirror;
-  Expect.equals(1042, f2.apply([1000]).reflectee);
-
-  // Local expression.
-  ClosureMirror f3 = reflect((u) => u + 987) as ClosureMirror;
-  Expect.equals(1987, f3.apply([1000]).reflectee);
-
-  // Instance property extraction.
-  ClosureMirror f4 = reflect(new A().bar) as ClosureMirror;
-  Expect.equals(1321, f4.apply([1000]).reflectee);
-
-  // Instance implementing Function via call method.
-  ClosureMirror f5 = reflect(new A()) as ClosureMirror;
-  Expect.equals(1123, f5.apply([1000]).reflectee);
-}
diff --git a/tests/lib_2/mirrors/function_type_mirror_test.dart b/tests/lib_2/mirrors/function_type_mirror_test.dart
deleted file mode 100644
index 03e5a254aa6..00000000000
--- a/tests/lib_2/mirrors/function_type_mirror_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:mirrors";
-
-import "package:expect/expect.dart";
-
-typedef void FooFunction(int a, double b);
-
-bar(int a) {}
-
-main() {
-  TypedefMirror tm = reflectType(FooFunction) as TypedefMirror;
-  FunctionTypeMirror ftm = tm.referent;
-  Expect.equals(const Symbol('void'), ftm.returnType.simpleName);
-  Expect.equals(#int, ftm.parameters[0].type.simpleName);
-  Expect.equals(#double, ftm.parameters[1].type.simpleName);
-  ClosureMirror cm = reflect(bar) as ClosureMirror;
-  ftm = cm.type as FunctionTypeMirror;
-  Expect.equals(#dynamic, ftm.returnType.simpleName);
-  Expect.equals(#int, ftm.parameters[0].type.simpleName);
-}
diff --git a/tests/lib_2/mirrors/generic_bounded_by_type_parameter_test.dart b/tests/lib_2/mirrors/generic_bounded_by_type_parameter_test.dart
deleted file mode 100644
index c4dbb669723..00000000000
--- a/tests/lib_2/mirrors/generic_bounded_by_type_parameter_test.dart
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.generic_bounded_by_type_parameter;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-import 'generics_helper.dart';
-
-class Super<T, R extends T> {}
-
-class Fixed extends Super<num, int> {}
-
-class Generic<X, Y> extends Super<X, Y> {} //# 02: compile-time error
-
-main() {
-  ClassMirror superDecl = reflectClass(Super);
-  ClassMirror superOfNumAndInt = reflectClass(Fixed).superclass;
-  ClassMirror genericDecl = reflectClass(Generic); // //# 02: continued
-  ClassMirror superOfXAndY = genericDecl.superclass; // //# 02: continued
-  ClassMirror genericOfNumAndDouble = reflect(new Generic<num, double>()).type; // //# 02: continued
-  ClassMirror superOfNumAndDouble = genericOfNumAndDouble.superclass; // //# 02: continued
-
-  ClassMirror genericOfNumAndBool = reflect(new Generic<num, bool>()).type; // //# 02: compile-time error
-  ClassMirror superOfNumAndBool = genericOfNumAndBool.superclass; // //# 02: continued
-  Expect.isFalse(genericOfNumAndBool.isOriginalDeclaration); // //# 02: continued
-  Expect.isFalse(superOfNumAndBool.isOriginalDeclaration); // //# 02: continued
-  typeParameters(genericOfNumAndBool, [#X, #Y]); // //# 02: continued
-  typeParameters(superOfNumAndBool, [#T, #R]); // //# 02: continued
-  typeArguments(genericOfNumAndBool, [reflectClass(num), reflectClass(bool)]); // //# 02: continued
-  typeArguments(superOfNumAndBool, [reflectClass(num), reflectClass(bool)]); // //# 02: continued
-
-  Expect.isTrue(superDecl.isOriginalDeclaration);
-  Expect.isFalse(superOfNumAndInt.isOriginalDeclaration);
-  Expect.isTrue(genericDecl.isOriginalDeclaration); // //# 02: continued
-  Expect.isFalse(superOfXAndY.isOriginalDeclaration); //  //# 02: continued
-  Expect.isFalse(genericOfNumAndDouble.isOriginalDeclaration); // //# 02: continued
-  Expect.isFalse(superOfNumAndDouble.isOriginalDeclaration); // //# 02: continued
-
-  TypeVariableMirror tFromSuper = superDecl.typeVariables[0];
-  TypeVariableMirror rFromSuper = superDecl.typeVariables[1];
-  TypeVariableMirror xFromGeneric = genericDecl.typeVariables[0]; // //# 02: continued
-  TypeVariableMirror yFromGeneric = genericDecl.typeVariables[1]; // //# 02: continued
-
-  Expect.equals(reflectClass(Object), tFromSuper.upperBound);
-  Expect.equals(tFromSuper, rFromSuper.upperBound);
-  Expect.equals(reflectClass(Object), xFromGeneric.upperBound); // //# 02: continued
-  Expect.equals(reflectClass(Object), yFromGeneric.upperBound); // //# 02: continued
-
-  // Names of type variables are not preserved after type canonicalization
-  // and are therefore not compared to expected names.
-
-  typeArguments(superDecl, []);
-  typeArguments(superOfNumAndInt, [reflectClass(num), reflectClass(int)]);
-  typeArguments(genericDecl, []); // //# 02: continued
-  typeArguments(superOfXAndY, [xFromGeneric, yFromGeneric]); // //# 02: continued
-  typeArguments(genericOfNumAndDouble, [reflectClass(num), reflectClass(double)]); // //# 02: continued
-  typeArguments(superOfNumAndDouble, [reflectClass(num), reflectClass(double)]); // //# 02: continued
-}
diff --git a/tests/lib_2/mirrors/generic_bounded_test.dart b/tests/lib_2/mirrors/generic_bounded_test.dart
deleted file mode 100644
index 3cd16faf207..00000000000
--- a/tests/lib_2/mirrors/generic_bounded_test.dart
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.generic_bounded;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-import 'generics_helper.dart';
-
-class Super<T extends num> {}
-
-class Fixed extends Super<int> {}
-class Generic<R> extends Super<R> {} // //# 02: compile-time error
-class Malbounded extends Super<String> {} //# 01: compile-time error
-
-main() {
-  ClassMirror superDecl = reflectClass(Super);
-  ClassMirror superOfInt = reflectClass(Fixed).superclass;
-  ClassMirror genericDecl = reflectClass(Generic); // //# 02: continued
-  ClassMirror superOfR = genericDecl.superclass; // //# 02: continued
-  ClassMirror genericOfDouble = reflect(new Generic<double>()).type; // //# 02: continued
-  ClassMirror superOfDouble = genericOfDouble.superclass; // //# 02: continued
-  ClassMirror genericOfBool = reflect(new Generic<bool>()).type; // //# 02: compile-time error
-  ClassMirror superOfBool = genericOfBool.superclass; // //# 02: continued
-  Expect.isFalse(genericOfBool.isOriginalDeclaration); // //# 02: continued
-  Expect.isFalse(superOfBool.isOriginalDeclaration); // //# 02: continued
-  typeParameters(genericOfBool, [#R]); // //# 02: continued
-  typeParameters(superOfBool, [#T]); // //# 02: continued
-  typeArguments(genericOfBool, [reflectClass(bool)]); // //# 02: continued
-  typeArguments(superOfBool, [reflectClass(bool)]); // //# 02: continued
-
-  ClassMirror superOfString = reflectClass(Malbounded).superclass; // //# 01: continued
-
-  Expect.isTrue(superDecl.isOriginalDeclaration);
-  Expect.isFalse(superOfInt.isOriginalDeclaration);
-  Expect.isTrue(genericDecl.isOriginalDeclaration); // //# 02: continued
-  Expect.isFalse(superOfR.isOriginalDeclaration); // //# 02: continued
-  Expect.isFalse(genericOfDouble.isOriginalDeclaration); // //# 02: continued
-  Expect.isFalse(superOfDouble.isOriginalDeclaration); // //# 02: continued
-
-  Expect.isFalse(superOfString.isOriginalDeclaration); // //# 01: continued
-
-  TypeVariableMirror tFromSuper = superDecl.typeVariables.single;
-  TypeVariableMirror rFromGeneric = genericDecl.typeVariables.single; // //# 02: continued
-
-  Expect.equals(reflectClass(num), tFromSuper.upperBound);
-  Expect.equals(reflectClass(Object), rFromGeneric.upperBound); // //# 02: continued
-
-  // Names of type variables are not preserved after type canonicalization
-  // and are therefore not compared to expected names.
-
-  typeArguments(superDecl, []);
-  typeArguments(superOfInt, [reflectClass(int)]);
-  typeArguments(genericDecl, []); // //# 02: continued
-  typeArguments(superOfR, [rFromGeneric]); // //# 02: continued
-  typeArguments(genericOfDouble, [reflectClass(double)]); // //# 02: continued
-  typeArguments(superOfDouble, [reflectClass(double)]); // //# 02: continued
-  typeArguments(superOfString, [reflectClass(String)]); // //# 01: continued
-}
diff --git a/tests/lib_2/mirrors/generic_class_declaration_test.dart b/tests/lib_2/mirrors/generic_class_declaration_test.dart
deleted file mode 100644
index 353b48f79dc..00000000000
--- a/tests/lib_2/mirrors/generic_class_declaration_test.dart
+++ /dev/null
@@ -1,89 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-import 'stringify.dart';
-
-class A<T> {
-  var instanceVariable;
-  get instanceGetter => null;
-  set instanceSetter(x) => x;
-  instanceMethod() => null;
-
-  var _instanceVariable;
-  get _instanceGetter => null;
-  set _instanceSetter(x) => x;
-  _instanceMethod() => null;
-
-  static var staticVariable;
-  static get staticGetter => null;
-  static set staticSetter(x) => x;
-  static staticMethod() => null;
-
-  static var _staticVariable;
-  static get _staticGetter => null;
-  static set _staticSetter(x) => x;
-  static _staticMethod() => null;
-}
-
-main() {
-  ClassMirror cm = reflect(new A<String>()).type;
-  Expect.setEquals([
-    'Variable(s(_instanceVariable) in s(A), private)',
-    'Variable(s(_staticVariable) in s(A), private, static)',
-    'Variable(s(instanceVariable) in s(A))',
-    'Variable(s(staticVariable) in s(A), static)'
-  ], cm.declarations.values.where((dm) => dm is VariableMirror).map(stringify),
-      'variables');
-
-  Expect.setEquals(
-      [
-        'Method(s(_instanceGetter) in s(A), private, getter)',
-        'Method(s(_staticGetter) in s(A), private, static, getter)',
-        'Method(s(instanceGetter) in s(A), getter)',
-        'Method(s(staticGetter) in s(A), static, getter)'
-      ],
-      cm.declarations.values
-          .where((dm) => dm is MethodMirror && dm.isGetter)
-          .map(stringify),
-      'getters');
-
-  Expect.setEquals(
-      [
-        'Method(s(_instanceSetter=) in s(A), private, setter)',
-        'Method(s(_staticSetter=) in s(A), private, static, setter)',
-        'Method(s(instanceSetter=) in s(A), setter)',
-        'Method(s(staticSetter=) in s(A), static, setter)'
-      ],
-      cm.declarations.values
-          .where((dm) => dm is MethodMirror && dm.isSetter)
-          .map(stringify),
-      'setters');
-
-  Expect.setEquals(
-      [
-        'Method(s(_instanceMethod) in s(A), private)',
-        'Method(s(_staticMethod) in s(A), private, static)',
-        'Method(s(instanceMethod) in s(A))',
-        'Method(s(staticMethod) in s(A), static)'
-      ],
-      cm.declarations.values
-          .where((dm) => dm is MethodMirror && dm.isRegularMethod)
-          .map(stringify),
-      'methods');
-
-  Expect.setEquals(
-      ['Method(s(A) in s(A), constructor)'],
-      cm.declarations.values
-          .where((dm) => dm is MethodMirror && dm.isConstructor)
-          .map(stringify),
-      'constructors');
-
-  // Names of type variables are not preserved after type canonicalization
-  // and are therefore not compared to expected names.
-}
diff --git a/tests/lib_2/mirrors/generic_f_bounded_mixin_application_test.dart b/tests/lib_2/mirrors/generic_f_bounded_mixin_application_test.dart
deleted file mode 100644
index 2137299a601..00000000000
--- a/tests/lib_2/mirrors/generic_f_bounded_mixin_application_test.dart
+++ /dev/null
@@ -1,124 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.generic_f_bounded;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-import 'generics_helper.dart';
-
-class Collection<C> {}
-
-class Serializable<S> {}
-
-class OrderedCollection<V> extends Collection<V>
-    with Serializable<OrderedCollection<V>> {}
-
-class AbstractOrderedCollection<W> = Collection<W>
-    with Serializable<AbstractOrderedCollection<W>>;
-
-class CustomOrderedCollection<Z> extends AbstractOrderedCollection<Z> {}
-
-class OrderedIntegerCollection extends OrderedCollection<int> {}
-
-class CustomOrderedIntegerCollection extends CustomOrderedCollection<int> {}
-
-class Serializer<R extends Serializable<R>> {}
-
-class CollectionSerializer extends Serializer<Collection> {}
-
-class OrderedCollectionSerializer extends Serializer<OrderedCollection> {}
-
-main() {
-  ClassMirror collectionDecl = reflectClass(Collection);
-  ClassMirror serializableDecl = reflectClass(Serializable);
-  ClassMirror orderedCollectionDecl = reflectClass(OrderedCollection);
-  ClassMirror abstractOrderedCollectionDecl =
-      reflectClass(AbstractOrderedCollection);
-  ClassMirror customOrderedCollectionDecl =
-      reflectClass(CustomOrderedCollection);
-  ClassMirror orderedIntegerCollection = reflectClass(OrderedIntegerCollection);
-  ClassMirror customOrderedIntegerCollection =
-      reflectClass(CustomOrderedIntegerCollection);
-  ClassMirror serializerDecl = reflectClass(Serializer);
-  ClassMirror collectionSerializerDecl = reflectClass(CollectionSerializer);
-  ClassMirror orderedCollectionSerializerDecl =
-      reflectClass(OrderedCollectionSerializer);
-
-  ClassMirror orderedCollectionOfInt = orderedIntegerCollection.superclass;
-  ClassMirror customOrderedCollectionOfInt =
-      customOrderedIntegerCollection.superclass;
-  ClassMirror serializerOfCollection = collectionSerializerDecl.superclass;
-  ClassMirror serializerOfOrderedCollection =
-      orderedCollectionSerializerDecl.superclass;
-  ClassMirror collectionOfDynamic = reflect(new Collection()).type;
-  ClassMirror orderedCollectionOfDynamic =
-      reflect(new OrderedCollection()).type;
-  ClassMirror collectionWithSerializableOfOrderedCollection =
-      orderedCollectionDecl.superclass;
-
-  Expect.isTrue(collectionDecl.isOriginalDeclaration);
-  Expect.isTrue(serializableDecl.isOriginalDeclaration);
-  Expect.isTrue(orderedCollectionDecl.isOriginalDeclaration);
-  Expect.isTrue(abstractOrderedCollectionDecl.isOriginalDeclaration);
-  Expect.isTrue(customOrderedCollectionDecl.isOriginalDeclaration);
-  Expect.isTrue(orderedIntegerCollection.isOriginalDeclaration);
-  Expect.isTrue(customOrderedIntegerCollection.isOriginalDeclaration);
-  Expect.isTrue(serializerDecl.isOriginalDeclaration);
-  Expect.isTrue(collectionSerializerDecl.isOriginalDeclaration);
-  Expect.isTrue(orderedCollectionSerializerDecl.isOriginalDeclaration);
-
-  Expect.isFalse(orderedCollectionOfInt.isOriginalDeclaration);
-  Expect.isFalse(customOrderedCollectionOfInt.isOriginalDeclaration);
-  Expect.isFalse(serializerOfCollection.isOriginalDeclaration);
-  Expect.isFalse(serializerOfOrderedCollection.isOriginalDeclaration);
-  Expect.isFalse(collectionOfDynamic.isOriginalDeclaration);
-  Expect.isFalse(
-      collectionWithSerializableOfOrderedCollection.isOriginalDeclaration);
-
-  TypeVariableMirror rFromSerializer = serializerDecl.typeVariables.single;
-  ClassMirror serializableOfR = rFromSerializer.upperBound as ClassMirror;
-  Expect.isFalse(serializableOfR.isOriginalDeclaration);
-  Expect.equals(serializableDecl, serializableOfR.originalDeclaration);
-  Expect.equals(rFromSerializer, serializableOfR.typeArguments.single);
-
-  typeParameters(collectionDecl, [#C]);
-  typeParameters(serializableDecl, [#S]);
-  typeParameters(orderedCollectionDecl, [#V]);
-  typeParameters(abstractOrderedCollectionDecl, [#W]);
-  typeParameters(customOrderedCollectionDecl, [#Z]);
-  typeParameters(orderedIntegerCollection, []);
-  typeParameters(customOrderedIntegerCollection, []);
-  typeParameters(serializerDecl, [#R]);
-  typeParameters(collectionSerializerDecl, []);
-  typeParameters(orderedCollectionSerializerDecl, []);
-
-  typeParameters(orderedCollectionOfInt, [#V]);
-  typeParameters(customOrderedCollectionOfInt, [#Z]);
-  typeParameters(serializerOfCollection, [#R]);
-  typeParameters(serializerOfOrderedCollection, [#R]);
-  typeParameters(collectionOfDynamic, [#C]);
-  typeParameters(collectionWithSerializableOfOrderedCollection, []);
-
-  typeArguments(collectionDecl, []);
-  typeArguments(serializableDecl, []);
-  typeArguments(orderedCollectionDecl, []);
-  typeArguments(abstractOrderedCollectionDecl, []);
-  typeArguments(customOrderedCollectionDecl, []);
-  typeArguments(orderedIntegerCollection, []);
-  typeArguments(customOrderedIntegerCollection, []);
-  typeArguments(serializerDecl, []);
-  typeArguments(collectionSerializerDecl, []);
-  typeArguments(orderedCollectionSerializerDecl, []);
-
-  typeArguments(orderedCollectionOfInt, [reflectClass(int)]);
-  typeArguments(customOrderedCollectionOfInt, [reflectClass(int)]);
-  typeArguments(serializerOfCollection, [collectionOfDynamic]);
-  typeArguments(serializerOfOrderedCollection, [orderedCollectionOfDynamic]);
-  typeArguments(collectionWithSerializableOfOrderedCollection, []);
-}
diff --git a/tests/lib_2/mirrors/generic_f_bounded_test.dart b/tests/lib_2/mirrors/generic_f_bounded_test.dart
deleted file mode 100644
index ccde8aef2f3..00000000000
--- a/tests/lib_2/mirrors/generic_f_bounded_test.dart
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.generic_f_bounded;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-import 'generics_helper.dart';
-
-class Magnitude<T> {}
-
-class Real extends Magnitude<Real> {}
-
-class Sorter<R extends Magnitude<R>> {}
-
-class RealSorter extends Sorter<Real> {}
-
-main() {
-  ClassMirror magnitudeDecl = reflectClass(Magnitude);
-  ClassMirror realDecl = reflectClass(Real);
-  ClassMirror sorterDecl = reflectClass(Sorter);
-  ClassMirror realSorterDecl = reflectClass(RealSorter);
-  ClassMirror magnitudeOfReal = realDecl.superclass;
-  ClassMirror sorterOfReal = realSorterDecl.superclass;
-
-  Expect.isTrue(magnitudeDecl.isOriginalDeclaration);
-  Expect.isTrue(realDecl.isOriginalDeclaration);
-  Expect.isTrue(sorterDecl.isOriginalDeclaration);
-  Expect.isTrue(realSorterDecl.isOriginalDeclaration);
-  Expect.isFalse(magnitudeOfReal.isOriginalDeclaration);
-  Expect.isFalse(sorterOfReal.isOriginalDeclaration);
-
-  TypeVariableMirror tFromMagnitude = magnitudeDecl.typeVariables.single;
-  TypeVariableMirror rFromSorter = sorterDecl.typeVariables.single;
-
-  Expect.equals(reflectClass(Object), tFromMagnitude.upperBound);
-
-  ClassMirror magnitudeOfR = rFromSorter.upperBound;
-  Expect.isFalse(magnitudeOfR.isOriginalDeclaration);
-  Expect.equals(magnitudeDecl, magnitudeOfR.originalDeclaration);
-  Expect.equals(rFromSorter, magnitudeOfR.typeArguments.single);
-
-  // Names of type variables are not preserved after type canonicalization
-  // and are therefore not compared to expected names.
-
-  typeParameters(realDecl, []);
-  typeParameters(realSorterDecl, []);
-
-  // Names of type variables are not preserved after type canonicalization
-  // and are therefore not compared to expected names.
-
-  typeArguments(magnitudeDecl, []);
-  typeArguments(realDecl, []);
-  typeArguments(sorterDecl, []);
-  typeArguments(realSorterDecl, []);
-  typeArguments(magnitudeOfReal, [realDecl]); //# 01: ok
-  typeArguments(sorterOfReal, [realDecl]); //# 01: ok
-  typeArguments(magnitudeOfR, [rFromSorter]);
-}
diff --git a/tests/lib_2/mirrors/generic_function_typedef_test.dart b/tests/lib_2/mirrors/generic_function_typedef_test.dart
deleted file mode 100644
index 0331bd60852..00000000000
--- a/tests/lib_2/mirrors/generic_function_typedef_test.dart
+++ /dev/null
@@ -1,130 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.generic_function_typedef;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-import 'generics_helper.dart';
-
-typedef bool NonGenericPredicate(num n);
-typedef bool GenericPredicate<T>(T t);
-typedef S GenericTransform<S>(S s);
-
-class C<R> {
-  GenericPredicate<num> predicateOfNum;
-  GenericTransform<String> transformOfString;
-  GenericTransform<R> transformOfR;
-}
-
-reflectTypeDeclaration(t) => reflectType(t).originalDeclaration;
-
-main() {
-  TypeMirror dynamicMirror = currentMirrorSystem().dynamicType;
-
-  TypedefMirror predicateOfNum =
-      (reflectClass(C).declarations[#predicateOfNum] as VariableMirror).type
-          as TypedefMirror;
-  TypedefMirror transformOfString =
-      (reflectClass(C).declarations[#transformOfString] as VariableMirror).type
-          as TypedefMirror;
-  TypedefMirror transformOfR =
-      (reflectClass(C).declarations[#transformOfR] as VariableMirror).type
-          as TypedefMirror;
-  TypedefMirror transformOfDouble = (reflect(new C<double>())
-          .type
-          .declarations[#transformOfR] as VariableMirror)
-      .type as TypedefMirror;
-
-  TypeVariableMirror tFromGenericPredicate =
-      reflectTypeDeclaration(GenericPredicate).typeVariables[0];
-  TypeVariableMirror sFromGenericTransform =
-      reflectTypeDeclaration(GenericTransform).typeVariables[0];
-  TypeVariableMirror rFromC = reflectClass(C).typeVariables[0];
-
-  // Typedefs.
-  typeParameters(reflectTypeDeclaration(NonGenericPredicate), []);
-  typeParameters(reflectTypeDeclaration(GenericPredicate), [#T]);
-  typeParameters(reflectTypeDeclaration(GenericTransform), [#S]);
-  typeParameters(predicateOfNum, [#T]);
-  typeParameters(transformOfString, [#S]);
-  typeParameters(transformOfR, [#S]);
-  typeParameters(transformOfDouble, [#S]);
-
-  typeArguments(reflectTypeDeclaration(NonGenericPredicate), []);
-  typeArguments(reflectTypeDeclaration(GenericPredicate), []);
-  typeArguments(reflectTypeDeclaration(GenericTransform), []);
-  typeArguments(predicateOfNum, [reflectClass(num)]);
-  typeArguments(transformOfString, [reflectClass(String)]);
-  typeArguments(transformOfR, [rFromC]);
-  typeArguments(transformOfDouble, [reflectClass(double)]);
-
-  Expect.isTrue(
-      reflectTypeDeclaration(NonGenericPredicate).isOriginalDeclaration);
-  Expect.isTrue(reflectTypeDeclaration(GenericPredicate).isOriginalDeclaration);
-  Expect.isTrue(reflectTypeDeclaration(GenericTransform).isOriginalDeclaration);
-  Expect.isFalse(predicateOfNum.isOriginalDeclaration);
-  Expect.isFalse(transformOfString.isOriginalDeclaration);
-  Expect.isFalse(transformOfR.isOriginalDeclaration);
-  Expect.isFalse(transformOfDouble.isOriginalDeclaration);
-
-  // Function types.
-  typeParameters(reflectTypeDeclaration(NonGenericPredicate).referent, []);
-  typeParameters(reflectTypeDeclaration(GenericPredicate).referent, []);
-  typeParameters(reflectTypeDeclaration(GenericTransform).referent, []);
-  typeParameters(predicateOfNum.referent, []);
-  typeParameters(transformOfString.referent, []);
-  typeParameters(transformOfR.referent, []);
-  typeParameters(transformOfDouble.referent, []);
-
-  typeArguments(reflectTypeDeclaration(NonGenericPredicate).referent, []);
-  typeArguments(reflectTypeDeclaration(GenericPredicate).referent, []);
-  typeArguments(reflectTypeDeclaration(GenericTransform).referent, []);
-  typeArguments(predicateOfNum.referent, []);
-  typeArguments(transformOfString.referent, []);
-  typeArguments(transformOfR.referent, []);
-  typeArguments(transformOfDouble.referent, []);
-
-  // Function types are always non-generic. Only the typedef is generic.
-  Expect.isTrue(reflectTypeDeclaration(NonGenericPredicate)
-      .referent
-      .isOriginalDeclaration);
-  Expect.isTrue(
-      reflectTypeDeclaration(GenericPredicate).referent.isOriginalDeclaration);
-  Expect.isTrue(
-      reflectTypeDeclaration(GenericTransform).referent.isOriginalDeclaration);
-  Expect.isTrue(predicateOfNum.referent.isOriginalDeclaration);
-  Expect.isTrue(transformOfString.referent.isOriginalDeclaration);
-  Expect.isTrue(transformOfR.referent.isOriginalDeclaration);
-  Expect.isTrue(transformOfDouble.referent.isOriginalDeclaration);
-
-  Expect.equals(reflectClass(num),
-      reflectTypeDeclaration(NonGenericPredicate).referent.parameters[0].type);
-  Expect.equals(tFromGenericPredicate,
-      reflectTypeDeclaration(GenericPredicate).referent.parameters[0].type);
-  Expect.equals(sFromGenericTransform,
-      reflectTypeDeclaration(GenericTransform).referent.parameters[0].type);
-
-  Expect.equals(reflectClass(num), predicateOfNum.referent.parameters[0].type);
-  Expect.equals(
-      reflectClass(String), transformOfString.referent.parameters[0].type);
-  Expect.equals(rFromC, transformOfR.referent.parameters[0].type);
-  Expect.equals(
-      reflectClass(double), transformOfDouble.referent.parameters[0].type);
-
-  Expect.equals(reflectClass(bool),
-      reflectTypeDeclaration(NonGenericPredicate).referent.returnType);
-  Expect.equals(reflectClass(bool),
-      reflectTypeDeclaration(GenericPredicate).referent.returnType);
-  Expect.equals(sFromGenericTransform,
-      reflectTypeDeclaration(GenericTransform).referent.returnType);
-  Expect.equals(reflectClass(bool), predicateOfNum.referent.returnType);
-  Expect.equals(reflectClass(String), transformOfString.referent.returnType);
-  Expect.equals(rFromC, transformOfR.referent.returnType);
-  Expect.equals(reflectClass(double), transformOfDouble.referent.returnType);
-}
diff --git a/tests/lib_2/mirrors/generic_interface_test.dart b/tests/lib_2/mirrors/generic_interface_test.dart
deleted file mode 100644
index 74805237ecc..00000000000
--- a/tests/lib_2/mirrors/generic_interface_test.dart
+++ /dev/null
@@ -1,113 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.generic_bounded;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-import 'generics_helper.dart';
-
-class Interface<T> {}
-
-class Bounded<S extends num> {}
-
-class Fixed implements Interface<int> {}
-
-class Generic<R> implements Interface<R> {}
-
-class Bienbounded implements Bounded<int> {}
-
-class Malbounded implements Bounded<String> {} // //# 01: compile-time error
-class FBounded implements Interface<FBounded> {}
-
-class Mixin {}
-
-class FixedMixinApplication = Object with Mixin implements Interface<int>;
-class GenericMixinApplication<X> = Object with Mixin implements Interface<X>;
-
-class FixedClass extends Object with Mixin implements Interface<int> {}
-
-class GenericClass<Y> extends Object with Mixin implements Interface<Y> {}
-
-main() {
-  TypeMirror dynamicMirror = currentMirrorSystem().dynamicType;
-
-  ClassMirror interfaceDecl = reflectClass(Interface);
-  ClassMirror boundedDecl = reflectClass(Bounded);
-
-  ClassMirror interfaceOfInt = reflectClass(Fixed).superinterfaces.single;
-  ClassMirror interfaceOfR = reflectClass(Generic).superinterfaces.single;
-  ClassMirror interfaceOfBool =
-      reflect(new Generic<bool>()).type.superinterfaces.single;
-
-  ClassMirror boundedOfInt = reflectClass(Bienbounded).superinterfaces.single;
-  ClassMirror boundedOfString = reflectClass(Malbounded).superinterfaces.single; // //# 01: continued
-  ClassMirror interfaceOfFBounded =
-      reflectClass(FBounded).superinterfaces.single;
-
-  ClassMirror interfaceOfInt2 =
-      reflectClass(FixedMixinApplication).superinterfaces.single;
-  ClassMirror interfaceOfX =
-      reflectClass(GenericMixinApplication).superinterfaces.single;
-  ClassMirror interfaceOfDouble = reflect(new GenericMixinApplication<double>())
-      .type
-      .superinterfaces
-      .single;
-  ClassMirror interfaceOfInt3 = reflectClass(FixedClass).superinterfaces.single;
-  ClassMirror interfaceOfY = reflectClass(GenericClass).superinterfaces.single;
-  ClassMirror interfaceOfDouble2 =
-      reflect(new GenericClass<double>()).type.superinterfaces.single;
-
-  Expect.isTrue(interfaceDecl.isOriginalDeclaration);
-  Expect.isTrue(boundedDecl.isOriginalDeclaration);
-
-  Expect.isFalse(interfaceOfInt.isOriginalDeclaration);
-  Expect.isFalse(interfaceOfR.isOriginalDeclaration);
-  Expect.isFalse(interfaceOfBool.isOriginalDeclaration);
-  Expect.isFalse(boundedOfInt.isOriginalDeclaration);
-  Expect.isFalse(boundedOfString.isOriginalDeclaration); // //# 01: continued
-  Expect.isFalse(interfaceOfFBounded.isOriginalDeclaration);
-  Expect.isFalse(interfaceOfInt2.isOriginalDeclaration);
-  Expect.isFalse(interfaceOfX.isOriginalDeclaration);
-  Expect.isFalse(interfaceOfDouble.isOriginalDeclaration);
-  Expect.isFalse(interfaceOfInt3.isOriginalDeclaration);
-  Expect.isFalse(interfaceOfY.isOriginalDeclaration);
-  Expect.isFalse(interfaceOfDouble2.isOriginalDeclaration);
-
-  TypeVariableMirror tFromInterface = interfaceDecl.typeVariables.single;
-  TypeVariableMirror sFromBounded = boundedDecl.typeVariables.single;
-  TypeVariableMirror rFromGeneric = reflectClass(Generic).typeVariables.single;
-  TypeVariableMirror xFromGenericMixinApplication =
-      reflectClass(GenericMixinApplication).typeVariables.single;
-  TypeVariableMirror yFromGenericClass =
-      reflectClass(GenericClass).typeVariables.single;
-
-  Expect.equals(reflectClass(Object), tFromInterface.upperBound);
-  Expect.equals(reflectClass(num), sFromBounded.upperBound);
-  Expect.equals(reflectClass(Object), rFromGeneric.upperBound);
-  Expect.equals(reflectClass(Object), xFromGenericMixinApplication.upperBound);
-  Expect.equals(reflectClass(Object), yFromGenericClass.upperBound);
-
-  // Names of type variables are not preserved after type canonicalization
-  // and are therefore not compared to expected names.
-
-  typeArguments(interfaceDecl, []);
-  typeArguments(boundedDecl, []);
-  typeArguments(interfaceOfInt, [reflectClass(int)]);
-  typeArguments(interfaceOfR, [rFromGeneric]);
-  typeArguments(interfaceOfBool, [reflectClass(bool)]);
-  typeArguments(boundedOfInt, [reflectClass(int)]);
-  typeArguments(boundedOfString, [reflectClass(String)]); // //# 01: continued
-  typeArguments(interfaceOfFBounded, [reflectClass(FBounded)]);
-  typeArguments(interfaceOfInt2, [reflectClass(int)]);
-  typeArguments(interfaceOfX, [xFromGenericMixinApplication]);
-  typeArguments(interfaceOfDouble, [reflectClass(double)]);
-  typeArguments(interfaceOfInt3, [reflectClass(int)]);
-  typeArguments(interfaceOfY, [yFromGenericClass]);
-  typeArguments(interfaceOfDouble2, [reflectClass(double)]);
-}
diff --git a/tests/lib_2/mirrors/generic_list_test.dart b/tests/lib_2/mirrors/generic_list_test.dart
deleted file mode 100644
index 5452def93f9..00000000000
--- a/tests/lib_2/mirrors/generic_list_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.superclass;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-class Foo<T> {
-  List<T> makeList() {
-    if (new DateTime.now().millisecondsSinceEpoch == 42) return [];
-    return <T>[];
-  }
-}
-
-main() {
-  List<String> list = new Foo<String>().makeList();
-  var cls = reflectClass(list.runtimeType);
-  Expect.isNotNull(cls, 'Failed to reflect on MyClass.');
-}
diff --git a/tests/lib_2/mirrors/generic_local_function_test.dart b/tests/lib_2/mirrors/generic_local_function_test.dart
deleted file mode 100644
index baf05da467f..00000000000
--- a/tests/lib_2/mirrors/generic_local_function_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.generic_function_typedef;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-import 'generics_helper.dart';
-
-class C<T> {
-  makeClosure1() {
-    T closure1(T t) {}
-    return closure1;
-  }
-
-  makeClosure2() {
-    enclosing() {
-      T closure2(T t) {}
-      return closure2;
-    }
-
-    ;
-    return enclosing();
-  }
-}
-
-main() {
-  ClosureMirror closure1 =
-      reflect(new C<String>().makeClosure1()) as ClosureMirror;
-  Expect.equals(reflectClass(String), closure1.function.returnType);
-  Expect.equals(reflectClass(String), closure1.function.parameters[0].type);
-
-  ClosureMirror closure2 =
-      reflect(new C<String>().makeClosure2()) as ClosureMirror;
-  Expect.equals(reflectClass(String), closure2.function.returnType);
-  Expect.equals(reflectClass(String), closure2.function.parameters[0].type);
-}
diff --git a/tests/lib_2/mirrors/generic_method_test.dart b/tests/lib_2/mirrors/generic_method_test.dart
deleted file mode 100644
index 3803a6812de..00000000000
--- a/tests/lib_2/mirrors/generic_method_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-class Foo {
-  T bar<T>() => null;
-}
-
-void main() {
-  var type = reflectClass(Foo);
-  Expect.isTrue(type.declarations.keys.contains(#bar));
-}
diff --git a/tests/lib_2/mirrors/generic_mixin_applications_test.dart b/tests/lib_2/mirrors/generic_mixin_applications_test.dart
deleted file mode 100644
index 1bde0faa2e4..00000000000
--- a/tests/lib_2/mirrors/generic_mixin_applications_test.dart
+++ /dev/null
@@ -1,107 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.generic_mixin_applications;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-import 'generics_helper.dart';
-
-class Super<S> {}
-
-class Mixin<M> {}
-
-class Nixim<N> {}
-
-class NonGenericMixinApplication1 = Super with Mixin;
-class NonGenericMixinApplication2 = Super<num> with Mixin<String>;
-
-class GenericMixinApplication1<MA> = Super<MA> with Mixin<MA>;
-class GenericMixinApplication2<MA> = Super<num> with Mixin<String>;
-
-class NonGenericClass1 extends Super with Mixin {}
-
-class NonGenericClass2 extends Super<num> with Mixin<String> {}
-
-class GenericClass1<C> extends Super<C> with Mixin<C> {}
-
-class GenericClass2<C> extends Super<num> with Mixin<String> {}
-
-class GenericMultipleMixins<A, B, C> extends Super<A> with Mixin<B>, Nixim<C> {}
-
-main() {
-  TypeMirror dynamicMirror = currentMirrorSystem().dynamicType;
-
-  // Declarations.
-  typeParameters(reflectClass(NonGenericMixinApplication1), []);
-  typeParameters(reflectClass(NonGenericMixinApplication2), []);
-  typeParameters(reflectClass(GenericMixinApplication1), [#MA]);
-  typeParameters(reflectClass(GenericMixinApplication2), [#MA]);
-  typeParameters(reflectClass(NonGenericClass1), []);
-  typeParameters(reflectClass(NonGenericClass2), []);
-  typeParameters(reflectClass(GenericClass1), [#C]);
-  typeParameters(reflectClass(GenericClass2), [#C]);
-  typeParameters(reflectClass(GenericMultipleMixins), [#A, #B, #C]);
-  // Anonymous mixin applications have no type parameters or type arguments.
-  typeParameters(reflectClass(NonGenericClass1).superclass, []);
-  typeParameters(reflectClass(NonGenericClass2).superclass, []);
-  typeParameters(reflectClass(GenericClass1).superclass, []);
-  typeParameters(reflectClass(GenericClass2).superclass, []);
-
-  typeArguments(reflectClass(NonGenericMixinApplication1), []);
-  typeArguments(reflectClass(NonGenericMixinApplication2), []);
-  typeArguments(reflectClass(GenericMixinApplication1), []);
-  typeArguments(reflectClass(GenericMixinApplication2), []);
-  typeArguments(reflectClass(NonGenericClass1), []);
-  typeArguments(reflectClass(NonGenericClass2), []);
-  typeArguments(reflectClass(GenericClass1), []);
-  typeArguments(reflectClass(GenericClass2), []);
-  typeArguments(reflectClass(GenericMultipleMixins), []);
-  // Anonymous mixin applications have no type parameters or type arguments.
-  typeArguments(
-      reflectClass(NonGenericClass1).superclass.originalDeclaration, []);
-  typeArguments(
-      reflectClass(NonGenericClass2).superclass.originalDeclaration, []);
-  typeArguments(reflectClass(GenericClass1).superclass.originalDeclaration, []);
-  typeArguments(reflectClass(GenericClass2).superclass.originalDeclaration, []);
-
-  // Instantiations.
-  typeParameters(reflect(new NonGenericMixinApplication1()).type, []);
-  typeParameters(reflect(new NonGenericMixinApplication2()).type, []);
-  typeParameters(reflect(new GenericMixinApplication1<bool>()).type, [#MA]);
-  typeParameters(reflect(new GenericMixinApplication2<bool>()).type, [#MA]);
-  typeParameters(reflect(new NonGenericClass1()).type, []);
-  typeParameters(reflect(new NonGenericClass2()).type, []);
-  typeParameters(reflect(new GenericClass1<bool>()).type, [#C]);
-  typeParameters(reflect(new GenericClass2<bool>()).type, [#C]);
-  typeParameters(reflect(new GenericMultipleMixins<bool, String, int>()).type,
-      [#A, #B, #C]);
-  // Anonymous mixin applications have no type parameters or type arguments.
-  typeParameters(reflect(new NonGenericClass1()).type.superclass, []);
-  typeParameters(reflect(new NonGenericClass2()).type.superclass, []);
-  typeParameters(reflect(new GenericClass1<bool>()).type.superclass, []);
-  typeParameters(reflect(new GenericClass2<bool>()).type.superclass, []);
-
-  typeArguments(reflect(new NonGenericMixinApplication1()).type, []);
-  typeArguments(reflect(new NonGenericMixinApplication2()).type, []);
-  typeArguments(
-      reflect(new GenericMixinApplication1<bool>()).type, [reflectClass(bool)]);
-  typeArguments(
-      reflect(new GenericMixinApplication2<bool>()).type, [reflectClass(bool)]);
-  typeArguments(reflect(new NonGenericClass1()).type, []);
-  typeArguments(reflect(new NonGenericClass2()).type, []);
-  typeArguments(reflect(new GenericClass1<bool>()).type, [reflectClass(bool)]);
-  typeArguments(reflect(new GenericClass2<bool>()).type, [reflectClass(bool)]);
-  typeArguments(reflect(new GenericMultipleMixins<bool, String, int>()).type,
-      [reflectClass(bool), reflectClass(String), reflectClass(int)]);
-  // Anonymous mixin applications have no type parameters or type arguments.
-  typeArguments(reflect(new NonGenericClass1()).type.superclass, []);
-  typeArguments(reflect(new NonGenericClass2()).type.superclass, []);
-  typeArguments(reflect(new GenericClass1<bool>()).type.superclass, []);
-  typeArguments(reflect(new GenericClass2<bool>()).type.superclass, []);
-}
diff --git a/tests/lib_2/mirrors/generic_mixin_test.dart b/tests/lib_2/mirrors/generic_mixin_test.dart
deleted file mode 100644
index ccde91bf2f9..00000000000
--- a/tests/lib_2/mirrors/generic_mixin_test.dart
+++ /dev/null
@@ -1,125 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.generic_mixin;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-import 'generics_helper.dart';
-
-class Super<S> {}
-
-class Mixin<M> {}
-
-class Nixim<N> {}
-
-class NonGenericMixinApplication1 = Super with Mixin;
-class NonGenericMixinApplication2 = Super<num> with Mixin<String>;
-
-class GenericMixinApplication1<MA> = Super<MA> with Mixin<MA>;
-class GenericMixinApplication2<MA> = Super<num> with Mixin<String>;
-
-class NonGenericClass1 extends Super with Mixin {}
-
-class NonGenericClass2 extends Super<num> with Mixin<String> {}
-
-class GenericClass1<C> extends Super<C> with Mixin<C> {}
-
-class GenericClass2<C> extends Super<num> with Mixin<String> {}
-
-class GenericMultipleMixins<A, B, C> extends Super<A> with Mixin<B>, Nixim<C> {}
-
-main() {
-  TypeMirror dynamicMirror = currentMirrorSystem().dynamicType;
-
-  // Names of type variables are not preserved after type canonicalization
-  // and are therefore not compared to expected names.
-
-  typeArguments(
-      reflectClass(NonGenericMixinApplication1).mixin, [dynamicMirror]);
-  typeArguments(
-      reflectClass(NonGenericMixinApplication2).mixin, [reflectClass(String)]);
-  typeArguments(reflectClass(GenericMixinApplication1).mixin,
-      [reflectClass(GenericMixinApplication1).typeVariables.single]);
-  typeArguments(
-      reflectClass(GenericMixinApplication2).mixin, [reflectClass(String)]);
-  typeArguments(reflectClass(NonGenericClass1).mixin, []);
-  typeArguments(reflectClass(NonGenericClass2).mixin, []);
-  typeArguments(reflectClass(GenericClass1).mixin, []);
-  typeArguments(reflectClass(GenericClass2).mixin, []);
-  typeArguments(
-      reflectClass(NonGenericClass1).superclass.mixin, [dynamicMirror]);
-  typeArguments(
-      reflectClass(NonGenericClass2).superclass.mixin, [reflectClass(String)]);
-  typeArguments(reflectClass(GenericClass1).superclass.mixin,
-      [reflectClass(GenericClass1).typeVariables.single]);
-  typeArguments(
-      reflectClass(GenericClass2).superclass.mixin, [reflectClass(String)]);
-  typeArguments(reflectClass(GenericMultipleMixins).mixin, []);
-  typeArguments(reflectClass(GenericMultipleMixins).superclass.mixin,
-      [reflectClass(GenericMultipleMixins).typeVariables[2]]);
-  typeArguments(reflectClass(GenericMultipleMixins).superclass.superclass.mixin,
-      [reflectClass(GenericMultipleMixins).typeVariables[1]]);
-  typeArguments(
-      reflectClass(GenericMultipleMixins)
-          .superclass
-          .superclass
-          .superclass
-          .mixin,
-      [reflectClass(GenericMultipleMixins).typeVariables[0]]);
-
-  typeParameters(reflect(new NonGenericClass1()).type.mixin, []);
-  typeParameters(reflect(new NonGenericClass2()).type.mixin, []);
-
-  typeArguments(
-      reflect(new NonGenericMixinApplication1()).type.mixin, [dynamicMirror]);
-  typeArguments(reflect(new NonGenericMixinApplication2()).type.mixin,
-      [reflectClass(String)]);
-  typeArguments(reflect(new GenericMixinApplication1<bool>()).type.mixin,
-      [reflectClass(bool)]);
-  typeArguments(reflect(new GenericMixinApplication2<bool>()).type.mixin,
-      [reflectClass(String)]);
-  typeArguments(reflect(new NonGenericClass1()).type.mixin, []);
-  typeArguments(reflect(new NonGenericClass2()).type.mixin, []);
-  typeArguments(
-      reflect(new GenericClass1<bool>()).type.mixin, [reflectClass(bool)]);
-  typeArguments(
-      reflect(new GenericClass2<bool>()).type.mixin, [reflectClass(bool)]);
-  typeArguments(
-      reflect(new NonGenericClass1()).type.superclass.mixin, [dynamicMirror]);
-  typeArguments(reflect(new NonGenericClass2()).type.superclass.mixin,
-      [reflectClass(String)]);
-  typeArguments(reflect(new GenericClass1<bool>()).type.superclass.mixin,
-      [reflectClass(bool)]);
-  typeArguments(reflect(new GenericClass2<bool>()).type.superclass.mixin,
-      [reflectClass(String)]);
-  typeArguments(
-      reflect(new GenericMultipleMixins<bool, String, int>()).type.mixin,
-      [reflectClass(bool), reflectClass(String), reflectClass(int)]);
-  typeArguments(
-      reflect(new GenericMultipleMixins<bool, String, int>())
-          .type
-          .superclass
-          .mixin,
-      [reflectClass(int)]);
-  typeArguments(
-      reflect(new GenericMultipleMixins<bool, String, int>())
-          .type
-          .superclass
-          .superclass
-          .mixin,
-      [reflectClass(String)]);
-  typeArguments(
-      reflect(new GenericMultipleMixins<bool, String, int>())
-          .type
-          .superclass
-          .superclass
-          .superclass
-          .mixin,
-      [reflectClass(bool)]);
-}
diff --git a/tests/lib_2/mirrors/generic_superclass_test.dart b/tests/lib_2/mirrors/generic_superclass_test.dart
deleted file mode 100644
index 140a9efad66..00000000000
--- a/tests/lib_2/mirrors/generic_superclass_test.dart
+++ /dev/null
@@ -1,131 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-import 'dart:mirrors';
-
-class A<T> {}
-
-class B extends A<U> {}
-
-class C extends A<C> {}
-
-class D<T> extends A<T> {}
-
-class E<X, Y> extends G<H<Y>> {}
-
-class F<X> implements A<X> {}
-
-class FF<X, Y> implements G<H<Y>> {}
-
-class G<T> {}
-
-class H<T> {}
-
-class U {}
-
-class R {}
-
-void testOriginals() {
-  ClassMirror a = reflectClass(A);
-  ClassMirror b = reflectClass(B);
-  ClassMirror c = reflectClass(C);
-  ClassMirror d = reflectClass(D);
-  ClassMirror e = reflectClass(E);
-  ClassMirror f = reflectClass(F);
-  ClassMirror ff = reflectClass(FF);
-  ClassMirror superA = a.superclass;
-  ClassMirror superB = b.superclass;
-  ClassMirror superC = c.superclass;
-  ClassMirror superD = d.superclass;
-  ClassMirror superE = e.superclass;
-  ClassMirror superInterfaceF = f.superinterfaces[0];
-  ClassMirror superInterfaceFF = ff.superinterfaces[0];
-
-  TypeVariableMirror aT = a.typeVariables[0];
-  TypeVariableMirror dT = d.typeVariables[0];
-  TypeVariableMirror eX = e.typeVariables[0];
-  TypeVariableMirror eY = e.typeVariables[1];
-  TypeVariableMirror fX = f.typeVariables[0];
-  TypeVariableMirror feX = ff.typeVariables[0];
-  TypeVariableMirror feY = ff.typeVariables[1];
-
-  Expect.isTrue(superA.isOriginalDeclaration);
-  Expect.isFalse(superB.isOriginalDeclaration);
-  Expect.isFalse(superC.isOriginalDeclaration);
-  Expect.isFalse(superD.isOriginalDeclaration);
-  Expect.isFalse(superE.isOriginalDeclaration);
-  Expect.isFalse(superInterfaceF.isOriginalDeclaration);
-  Expect.isFalse(superInterfaceFF.isOriginalDeclaration);
-
-  Expect.equals(reflectClass(Object), superA);
-  Expect.equals(reflect(new A<U>()).type, superB);
-  Expect.equals(reflect(new A<C>()).type, superC); //# 01: ok
-  Expect.equals(reflect(new U()).type, superB.typeArguments[0]);
-  Expect.equals(reflect(new C()).type, superC.typeArguments[0]); //# 01: ok
-  Expect.equals(dT, superD.typeArguments[0]);
-  Expect.equals(eY, superE.typeArguments[0].typeArguments[0]);
-  Expect.equals(feY, superInterfaceFF.typeArguments[0].typeArguments[0]);
-  Expect.equals(fX, superInterfaceF.typeArguments[0]);
-}
-
-void testInstances() {
-  ClassMirror a = reflect(new A<U>()).type;
-  ClassMirror b = reflect(new B()).type;
-  ClassMirror c = reflect(new C()).type;
-  ClassMirror d = reflect(new D<U>()).type;
-  ClassMirror e = reflect(new E<U, R>()).type;
-  ClassMirror e0 = reflect(new E<U, H<R>>()).type;
-  ClassMirror ff = reflect(new FF<U, R>()).type;
-  ClassMirror f = reflect(new F<U>()).type;
-  ClassMirror u = reflect(new U()).type;
-  ClassMirror r = reflect(new R()).type;
-  ClassMirror hr = reflect(new H<R>()).type;
-
-  ClassMirror superA = a.superclass;
-  ClassMirror superB = b.superclass;
-  ClassMirror superC = c.superclass;
-  ClassMirror superD = d.superclass;
-  ClassMirror superE = e.superclass;
-  ClassMirror superE0 = e0.superclass;
-  ClassMirror superInterfaceF = f.superinterfaces[0];
-  ClassMirror superInterfaceFF = ff.superinterfaces[0];
-
-  Expect.isTrue(superA.isOriginalDeclaration);
-  Expect.isFalse(superB.isOriginalDeclaration);
-  Expect.isFalse(superC.isOriginalDeclaration);
-  Expect.isFalse(superD.isOriginalDeclaration);
-  Expect.isFalse(superE.isOriginalDeclaration);
-  Expect.isFalse(superE0.isOriginalDeclaration);
-  Expect.isFalse(superInterfaceF.isOriginalDeclaration);
-  Expect.isFalse(superInterfaceFF.isOriginalDeclaration);
-
-  Expect.equals(reflectClass(Object), superA);
-  Expect.equals(reflect(new A<U>()).type, superB);
-  Expect.equals(reflect(new A<C>()).type, superC); //# 01: ok
-  Expect.equals(reflect(new A<U>()).type, superD);
-  Expect.equals(reflect(new G<H<R>>()).type, superE);
-  Expect.equals(reflect(new G<H<H<R>>>()).type, superE0);
-  Expect.equals(reflect(new G<H<R>>()).type, superInterfaceFF);
-  Expect.equals(u, superB.typeArguments[0]);
-  Expect.equals(reflect(new C()).type, superC.typeArguments[0]); //# 01: ok
-  Expect.equals(u, superD.typeArguments[0]);
-  Expect.equals(r, superE.typeArguments[0].typeArguments[0]);
-  Expect.equals(hr, superE0.typeArguments[0].typeArguments[0]);
-  Expect.equals(r, superInterfaceFF.typeArguments[0].typeArguments[0]);
-  Expect.equals(u, superInterfaceF.typeArguments[0]);
-}
-
-void testObject() {
-  ClassMirror object = reflectClass(Object);
-  Expect.equals(null, object.superclass);
-}
-
-main() {
-  testOriginals();
-  testInstances();
-  testObject();
-}
diff --git a/tests/lib_2/mirrors/generic_type_mirror_test.dart b/tests/lib_2/mirrors/generic_type_mirror_test.dart
deleted file mode 100644
index bddc01a73f3..00000000000
--- a/tests/lib_2/mirrors/generic_type_mirror_test.dart
+++ /dev/null
@@ -1,94 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:mirrors";
-import "package:expect/expect.dart";
-
-class Foo<W, V> {
-  V field;
-  V get bar => field;
-  set bar(V v) {}
-  W m() {}
-  V n() {}
-  H<V> p() {}
-  o(W w) {}
-}
-
-class H<T> {}
-
-class Bar {}
-
-class Baz {}
-
-void testInstance() {
-  ClassMirror foo = reflect((new Foo<Bar, Baz>())).type;
-  ClassMirror bar = reflect(new Bar()).type;
-  ClassMirror baz = reflect(new Baz()).type;
-  ClassMirror hOfBaz = reflect(new H<Baz>()).type;
-  VariableMirror field = foo.declarations[#field] as VariableMirror;
-  MethodMirror getter = foo.declarations[#bar] as MethodMirror;
-  MethodMirror setter = foo.declarations[const Symbol('bar=')] as MethodMirror;
-  MethodMirror m = foo.declarations[#m] as MethodMirror;
-  MethodMirror n = foo.declarations[#n] as MethodMirror;
-  MethodMirror o = foo.declarations[#o] as MethodMirror;
-  MethodMirror p = foo.declarations[#p] as MethodMirror;
-
-  Expect.equals(foo, field.owner);
-  Expect.equals(foo, getter.owner);
-  Expect.equals(foo, setter.owner);
-  Expect.equals(foo, m.owner);
-  Expect.equals(foo, n.owner);
-  Expect.equals(foo, o.owner);
-  Expect.equals(foo, p.owner);
-
-  Expect.equals(baz, field.type);
-  Expect.equals(baz, getter.returnType);
-  Expect.equals(bar, m.returnType);
-  Expect.equals(baz, n.returnType);
-  Expect.equals(bar, o.parameters.single.type);
-  Expect.equals(hOfBaz, p.returnType);
-  Expect.equals(1, p.returnType.typeArguments.length);
-  Expect.equals(baz, p.returnType.typeArguments[0]);
-
-  Expect.equals(baz, setter.parameters.single.type);
-}
-
-void testOriginalDeclaration() {
-  ClassMirror foo = reflectClass(Foo);
-
-  VariableMirror field = foo.declarations[#field] as VariableMirror;
-  MethodMirror getter = foo.declarations[#bar] as MethodMirror;
-  MethodMirror setter = foo.declarations[const Symbol('bar=')] as MethodMirror;
-  MethodMirror m = foo.declarations[#m] as MethodMirror;
-  MethodMirror n = foo.declarations[#n] as MethodMirror;
-  MethodMirror o = foo.declarations[#o] as MethodMirror;
-  MethodMirror p = foo.declarations[#p] as MethodMirror;
-  TypeVariableMirror w = foo.typeVariables[0] as TypeVariableMirror;
-  TypeVariableMirror v = foo.typeVariables[1] as TypeVariableMirror;
-
-  Expect.equals(foo, field.owner);
-  Expect.equals(foo, getter.owner);
-  Expect.equals(foo, setter.owner);
-  Expect.equals(foo, m.owner);
-  Expect.equals(foo, n.owner);
-  Expect.equals(foo, o.owner);
-  Expect.equals(foo, p.owner);
-
-  Expect.equals(v, field.type);
-  Expect.equals(v, getter.returnType);
-  Expect.equals(w, m.returnType);
-  Expect.equals(v, n.returnType);
-  Expect.equals(w, o.parameters.single.type);
-  Expect.equals(1, p.returnType.typeArguments.length);
-  Expect.equals(v, p.returnType.typeArguments[0]);
-
-  Expect.equals(v, setter.parameters.single.type);
-}
-
-main() {
-  testInstance();
-  testOriginalDeclaration();
-}
diff --git a/tests/lib_2/mirrors/generics_double_substitution_test.dart b/tests/lib_2/mirrors/generics_double_substitution_test.dart
deleted file mode 100644
index d5b922f232b..00000000000
--- a/tests/lib_2/mirrors/generics_double_substitution_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.generics_double_substitution;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class A<R> {}
-
-class B<S> {}
-
-class C<T> extends B<A<T>> {
-  A<T> field;
-  A<T> returnType() => new A<T>();
-  parameterType(A<T> param) {}
-}
-
-main() {
-  ClassMirror cOfString = reflect(new C<String>()).type;
-  ClassMirror aOfString = reflect(new A<String>()).type;
-
-  VariableMirror field = cOfString.declarations[#field] as VariableMirror;
-  Expect.equals(aOfString, field.type);
-
-  MethodMirror returnType = cOfString.declarations[#returnType] as MethodMirror;
-  Expect.equals(aOfString, returnType.returnType);
-
-  MethodMirror parameterType = cOfString.declarations[#parameterType] as MethodMirror;
-  Expect.equals(aOfString, parameterType.parameters.single.type);
-
-  ClassMirror typeArgOfSuperclass = cOfString.superclass.typeArguments.single as ClassMirror;
-  Expect.equals(aOfString, typeArgOfSuperclass); //# 01: ok
-}
diff --git a/tests/lib_2/mirrors/generics_dynamic_test.dart b/tests/lib_2/mirrors/generics_dynamic_test.dart
deleted file mode 100644
index 0542c085a0d..00000000000
--- a/tests/lib_2/mirrors/generics_dynamic_test.dart
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-class A<T> {}
-
-class B<T extends A> extends A implements C {
-  A m(A a) {}
-  A field;
-}
-
-class C<S, T> {}
-
-class D extends A<int> {}
-
-main() {
-  ClassMirror aDecl = reflectClass(A);
-  ClassMirror bDecl = reflectClass(B);
-  ClassMirror cDecl = reflectClass(C);
-  TypeMirror aInstance = reflect(new A()).type;
-  TypeMirror aInstanceDynamic = reflect(new A<dynamic>()).type;
-  TypeMirror dInstance = reflect(new D()).type;
-  TypeMirror cInstance = reflect(new C<dynamic, dynamic>()).type;
-  TypeMirror cNestedInstance = reflect(new C<C, dynamic>()).type;
-  TypeMirror cTypeArgument = cNestedInstance.typeArguments.first;
-  TypeMirror superA = bDecl.superclass;
-  TypeMirror superC = bDecl.superinterfaces.single;
-  MethodMirror m = bDecl.declarations[#m] as MethodMirror;
-  VariableMirror field = bDecl.declarations[#field] as VariableMirror;
-  TypeMirror returnTypeA = m.returnType;
-  TypeMirror parameterTypeA = m.parameters.first.type;
-  TypeMirror fieldTypeA = field.type;
-  TypeMirror upperBoundA = bDecl.typeVariables.single.upperBound;
-  TypeMirror dynamicMirror = currentMirrorSystem().dynamicType;
-
-  Expect.isTrue(aDecl.isOriginalDeclaration);
-  Expect.isTrue(reflect(dInstance).type.isOriginalDeclaration);
-  Expect.isFalse(aInstance.isOriginalDeclaration);
-  Expect.isFalse(aInstanceDynamic.isOriginalDeclaration);
-  Expect.isFalse(superA.isOriginalDeclaration);
-  Expect.isFalse(superC.isOriginalDeclaration);
-  Expect.isFalse(returnTypeA.isOriginalDeclaration);
-  Expect.isFalse(parameterTypeA.isOriginalDeclaration);
-  Expect.isFalse(fieldTypeA.isOriginalDeclaration);
-  Expect.isFalse(upperBoundA.isOriginalDeclaration);
-  Expect.isFalse(cInstance.isOriginalDeclaration);
-  Expect.isFalse(cNestedInstance.isOriginalDeclaration);
-  Expect.isFalse(cTypeArgument.isOriginalDeclaration);
-
-  Expect.isTrue(aDecl.typeArguments.isEmpty);
-  Expect.isTrue(dInstance.typeArguments.isEmpty);
-  Expect.equals(dynamicMirror, aInstance.typeArguments.single);
-  Expect.equals(dynamicMirror, aInstanceDynamic.typeArguments.single);
-  Expect.equals(dynamicMirror, superA.typeArguments.single);
-  Expect.equals(dynamicMirror, superC.typeArguments.first);
-  Expect.equals(dynamicMirror, superC.typeArguments.last);
-  Expect.equals(dynamicMirror, returnTypeA.typeArguments.single);
-  Expect.equals(dynamicMirror, parameterTypeA.typeArguments.single);
-  Expect.equals(dynamicMirror, fieldTypeA.typeArguments.single);
-  Expect.equals(dynamicMirror, upperBoundA.typeArguments.single);
-  Expect.equals(dynamicMirror, cInstance.typeArguments.first);
-  Expect.equals(dynamicMirror, cInstance.typeArguments.last);
-  Expect.equals(dynamicMirror, cNestedInstance.typeArguments.last);
-  Expect.equals(dynamicMirror, cTypeArgument.typeArguments.first);
-  Expect.equals(dynamicMirror, cTypeArgument.typeArguments.last);
-}
diff --git a/tests/lib_2/mirrors/generics_helper.dart b/tests/lib_2/mirrors/generics_helper.dart
deleted file mode 100644
index 7d7fe5c6ac2..00000000000
--- a/tests/lib_2/mirrors/generics_helper.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library generics_helper;
-
-import 'package:expect/expect.dart';
-
-typeParameters(mirror, parameterNames) {
-  Expect.listEquals(
-      parameterNames, mirror.typeVariables.map((v) => v.simpleName).toList());
-}
-
-typeArguments(mirror, argumentMirrors) {
-  Expect.listEquals(argumentMirrors, mirror.typeArguments);
-}
diff --git a/tests/lib_2/mirrors/generics_special_types_test.dart b/tests/lib_2/mirrors/generics_special_types_test.dart
deleted file mode 100644
index c73434ca2ee..00000000000
--- a/tests/lib_2/mirrors/generics_special_types_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.generics_special_types;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-main() {
-  TypeMirror dynamicMirror = currentMirrorSystem().dynamicType;
-  Expect.isTrue(dynamicMirror.isOriginalDeclaration);
-  Expect.equals(dynamicMirror, dynamicMirror.originalDeclaration);
-  Expect.listEquals([], dynamicMirror.typeVariables);
-  Expect.listEquals([], dynamicMirror.typeArguments);
-
-  TypeMirror voidMirror = currentMirrorSystem().voidType;
-  Expect.isTrue(voidMirror.isOriginalDeclaration);
-  Expect.equals(voidMirror, voidMirror.originalDeclaration);
-  Expect.listEquals([], voidMirror.typeVariables);
-  Expect.listEquals([], voidMirror.typeArguments);
-
-  TypeMirror dynamicMirror2 = reflectType(dynamic);
-  Expect.equals(dynamicMirror, dynamicMirror2);
-  Expect.isTrue(dynamicMirror2.isOriginalDeclaration);
-  Expect.equals(dynamicMirror2, dynamicMirror2.originalDeclaration);
-  Expect.listEquals([], dynamicMirror2.typeVariables);
-  Expect.listEquals([], dynamicMirror2.typeArguments);
-}
diff --git a/tests/lib_2/mirrors/generics_substitution_test.dart b/tests/lib_2/mirrors/generics_substitution_test.dart
deleted file mode 100644
index b07f509a5b3..00000000000
--- a/tests/lib_2/mirrors/generics_substitution_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.generics_substitution;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-class SuperGeneric<R, S> {
-  R r;
-  s(S s) {}
-}
-
-class Generic<T> extends SuperGeneric<T, int> {
-  T t() => throw "does-not-return"; //
-}
-
-main() {
-  ClassMirror genericDecl = reflectClass(Generic);
-  ClassMirror genericOfString = reflect(new Generic<String>()).type;
-  ClassMirror superGenericDecl = reflectClass(SuperGeneric);
-  ClassMirror superOfTAndInt = genericDecl.superclass;
-  ClassMirror superOfStringAndInt = genericOfString.superclass;
-
-  Expect.isTrue(genericDecl.isOriginalDeclaration);
-  Expect.isFalse(genericOfString.isOriginalDeclaration);
-  Expect.isTrue(superGenericDecl.isOriginalDeclaration);
-  Expect.isFalse(superOfTAndInt.isOriginalDeclaration);
-  Expect.isFalse(superOfStringAndInt.isOriginalDeclaration);
-
-  Symbol r(ClassMirror cm) =>
-      (cm.declarations[#r] as VariableMirror).type.simpleName;
-  Symbol s(ClassMirror cm) =>
-      (cm.declarations[#s] as MethodMirror).parameters[0].type.simpleName;
-  Symbol t(ClassMirror cm) =>
-      (cm.declarations[#t] as MethodMirror).returnType.simpleName;
-
-  // Names of type variables are not preserved after type canonicalization
-  // and are therefore not compared to expected names.
-
-  Expect.equals(#int, s(genericDecl.superclass));
-
-  Expect.equals(#String, r(genericOfString.superclass));
-  Expect.equals(#int, s(genericOfString.superclass));
-  Expect.equals(#String, t(genericOfString));
-
-  Expect.equals(#int, s(superOfTAndInt));
-
-  Expect.equals(#String, r(superOfStringAndInt));
-  Expect.equals(#int, s(superOfStringAndInt));
-}
diff --git a/tests/lib_2/mirrors/generics_test.dart b/tests/lib_2/mirrors/generics_test.dart
deleted file mode 100644
index a9dfb79024e..00000000000
--- a/tests/lib_2/mirrors/generics_test.dart
+++ /dev/null
@@ -1,161 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.type_arguments_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-import 'generics_helper.dart';
-
-class A<T> {}
-
-class Z<T> {}
-
-class B extends A {}
-
-class C
-    extends A<num, int> //# 01: compile-time error
-{}
-
-class D extends A<int> {}
-
-class E<S> extends A<S> {}
-
-class F<R> extends A<int> {}
-
-class G {}
-
-class H<A, B, C> {}
-
-class I extends G {}
-
-main() {
-  // Declarations.
-
-  // Names of type variables are not preserved after type canonicalization
-  // and are therefore not compared to expected names.
-
-  typeParameters(reflectClass(G), []);
-  typeParameters(reflectClass(B), []);
-  typeParameters(reflectClass(C), []);
-  typeParameters(reflectClass(D), []);
-  typeParameters(reflectClass(G), []);
-  typeParameters(reflectClass(I), []);
-
-  typeArguments(reflectClass(A), []);
-  typeArguments(reflectClass(B), []);
-  typeArguments(reflectClass(C), []);
-  typeArguments(reflectClass(D), []);
-  typeArguments(reflectClass(E), []);
-  typeArguments(reflectClass(F), []);
-  typeArguments(reflectClass(G), []);
-  typeArguments(reflectClass(H), []);
-  typeArguments(reflectClass(I), []);
-
-  Expect.isTrue(reflectClass(A).isOriginalDeclaration);
-  Expect.isTrue(reflectClass(B).isOriginalDeclaration);
-  Expect.isTrue(reflectClass(C).isOriginalDeclaration);
-  Expect.isTrue(reflectClass(D).isOriginalDeclaration);
-  Expect.isTrue(reflectClass(E).isOriginalDeclaration);
-  Expect.isTrue(reflectClass(F).isOriginalDeclaration);
-  Expect.isTrue(reflectClass(G).isOriginalDeclaration);
-  Expect.isTrue(reflectClass(H).isOriginalDeclaration);
-  Expect.isTrue(reflectClass(I).isOriginalDeclaration);
-
-  Expect.equals(reflectClass(A), reflectClass(A).originalDeclaration);
-  Expect.equals(reflectClass(B), reflectClass(B).originalDeclaration);
-  Expect.equals(reflectClass(C), reflectClass(C).originalDeclaration);
-  Expect.equals(reflectClass(D), reflectClass(D).originalDeclaration);
-  Expect.equals(reflectClass(E), reflectClass(E).originalDeclaration);
-  Expect.equals(reflectClass(F), reflectClass(F).originalDeclaration);
-  Expect.equals(reflectClass(G), reflectClass(G).originalDeclaration);
-  Expect.equals(reflectClass(H), reflectClass(H).originalDeclaration);
-  Expect.equals(reflectClass(I), reflectClass(I).originalDeclaration);
-
-  // Instantiations.
-  typeParameters(reflect(new B()).type, []);
-  typeParameters(reflect(new C()).type, []);
-  typeParameters(reflect(new D()).type, []);
-  typeParameters(reflect(new G()).type, []);
-  typeParameters(reflect(new I()).type, []);
-
-  var numMirror = reflectClass(num);
-  var dynamicMirror = currentMirrorSystem().dynamicType;
-  typeArguments(reflect(new A<num>()).type, [numMirror]);
-  typeArguments(reflect(new A<dynamic>()).type, [dynamicMirror]);
-  typeArguments(reflect(new A()).type, [dynamicMirror]);
-  typeArguments(reflect(new B()).type, []);
-  typeArguments(reflect(new C()).type, []);
-  typeArguments(reflect(new D()).type, []);
-  typeArguments(reflect(new E<num>()).type, [numMirror]);
-  typeArguments(reflect(new E<dynamic>()).type, [dynamicMirror]);
-  typeArguments(reflect(new E()).type, [dynamicMirror]);
-  typeArguments(reflect(new F<num>()).type, [numMirror]);
-  typeArguments(reflect(new F<dynamic>()).type, [dynamicMirror]);
-  typeArguments(reflect(new F()).type, [dynamicMirror]);
-  typeArguments(reflect(new G()).type, []);
-  typeArguments(reflect(new H<dynamic, num, dynamic>()).type,
-      [dynamicMirror, numMirror, dynamicMirror]);
-  typeArguments(reflect(new I()).type, []);
-
-  Expect.isFalse(reflect(new A<num>()).type.isOriginalDeclaration);
-  Expect.isTrue(reflect(new B()).type.isOriginalDeclaration);
-  Expect.isTrue(reflect(new C()).type.isOriginalDeclaration);
-  Expect.isTrue(reflect(new D()).type.isOriginalDeclaration);
-  Expect.isFalse(reflect(new E<num>()).type.isOriginalDeclaration);
-  Expect.isFalse(reflect(new F<num>()).type.isOriginalDeclaration);
-  Expect.isTrue(reflect(new G()).type.isOriginalDeclaration);
-  Expect.isFalse(reflect(new H()).type.isOriginalDeclaration);
-  Expect.isTrue(reflect(new I()).type.isOriginalDeclaration);
-
-  Expect.equals(
-      reflectClass(A), reflect(new A<num>()).type.originalDeclaration);
-  Expect.equals(reflectClass(B), reflect(new B()).type.originalDeclaration);
-  Expect.equals(reflectClass(C), reflect(new C()).type.originalDeclaration);
-  Expect.equals(reflectClass(D), reflect(new D()).type.originalDeclaration);
-  Expect.equals(
-      reflectClass(E), reflect(new E<num>()).type.originalDeclaration);
-  Expect.equals(
-      reflectClass(F), reflect(new F<num>()).type.originalDeclaration);
-  Expect.equals(reflectClass(G), reflect(new G()).type.originalDeclaration);
-  Expect.equals(reflectClass(H), reflect(new H()).type.originalDeclaration);
-  Expect.equals(reflectClass(I), reflect(new I()).type.originalDeclaration);
-
-  Expect.notEquals(reflect(new A<num>()).type,
-      reflect(new A<num>()).type.originalDeclaration);
-  Expect.equals(
-      reflect(new B()).type, reflect(new B()).type.originalDeclaration);
-  Expect.equals(
-      reflect(new C()).type, reflect(new C()).type.originalDeclaration);
-  Expect.equals(
-      reflect(new D()).type, reflect(new D()).type.originalDeclaration);
-  Expect.notEquals(reflect(new E<num>()).type,
-      reflect(new E<num>()).type.originalDeclaration);
-  Expect.notEquals(reflect(new F<num>()).type,
-      reflect(new F<num>()).type.originalDeclaration);
-  Expect.equals(
-      reflect(new G()).type, reflect(new G()).type.originalDeclaration);
-  Expect.notEquals(
-      reflect(new H()).type, reflect(new H()).type.originalDeclaration);
-  Expect.equals(
-      reflect(new I()).type, reflect(new I()).type.originalDeclaration);
-
-  // Library members are all uninstantiated generics or non-generics.
-  currentMirrorSystem().libraries.values.forEach((libraryMirror) {
-    libraryMirror.declarations.values.forEach((declaration) {
-      if (declaration is ClassMirror) {
-        Expect.isTrue(declaration.isOriginalDeclaration);
-        Expect.equals(declaration, declaration.originalDeclaration);
-      }
-    });
-  });
-
-  Expect.equals(reflectClass(A).typeVariables[0].owner, reflectClass(A));
-  Expect.equals(reflectClass(Z).typeVariables[0].owner, reflectClass(Z));
-  Expect.equals(
-      reflectClass(A).typeVariables[0], reflectClass(A).typeVariables[0]);
-}
diff --git a/tests/lib_2/mirrors/get_field_cache_test.dart b/tests/lib_2/mirrors/get_field_cache_test.dart
deleted file mode 100644
index bfd902adf5a..00000000000
--- a/tests/lib_2/mirrors/get_field_cache_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class A {
-  toString() => "A";
-}
-
-class B {
-  int x = 99;
-  toString() => "B";
-}
-
-void main() {
-  var a = new A();
-  var am = reflect(a);
-  for (int i = 0; i < 10; i++) {
-    // Adds a probe function on the symbol.
-    am.getField(#toString);
-  }
-  var b = new B();
-  var bm = reflect(b);
-  for (int i = 0; i < 10; i++) {
-    // Adds a field-cache on the mirror.
-    bm.getField(#x);
-  }
-  // There is a cache now, but the cache should not contain 'toString' from
-  // JavaScript's Object.prototype.
-  var toString = bm.getField(#toString).reflectee;
-  Expect.equals("B", toString());
-}
diff --git a/tests/lib_2/mirrors/get_field_static_test.dart b/tests/lib_2/mirrors/get_field_static_test.dart
deleted file mode 100644
index 54011173d81..00000000000
--- a/tests/lib_2/mirrors/get_field_static_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class A {
-  static foo(y, [x]) => y;
-  static get bar => 499;
-  static operator$foo([optional = 499]) => optional;
-  static var x = 42;
-  static final y = "toto";
-  static const z = true;
-}
-
-main() {
-  var cm = reflectClass(A);
-  var closure = cm.getField(#foo).reflectee;
-  Expect.equals("b", closure("b"));
-
-  closure = cm.getField(#operator$foo).reflectee;
-  Expect.equals(499, closure());
-
-  Expect.equals(499, cm.getField(#bar).reflectee);
-  Expect.equals(42, cm.getField(#x).reflectee);
-  Expect.equals("toto", cm.getField(#y).reflectee); // //# 00: ok
-  Expect.equals(true, cm.getField(#z).reflectee); //   //# 00: ok
-}
diff --git a/tests/lib_2/mirrors/get_field_test.dart b/tests/lib_2/mirrors/get_field_test.dart
deleted file mode 100644
index 5118a9ace14..00000000000
--- a/tests/lib_2/mirrors/get_field_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class A {
-  foo(y, [x]) => y;
-  operator +(other) => null;
-  get bar => 499;
-  operator$foo([optional = 499]) => optional;
-}
-
-main() {
-  // We are using `getField` to tear off `foo`. We must make sure that all
-  // stub methods are installed.
-  var closure = reflect(new A()).getField(#foo).reflectee;
-  Expect.equals("b", closure("b"));
-
-  closure = reflect(new A()).getField(#operator$foo).reflectee;
-  Expect.equals(499, closure());
-}
diff --git a/tests/lib_2/mirrors/get_symbol_name_no_such_method_test.dart b/tests/lib_2/mirrors/get_symbol_name_no_such_method_test.dart
deleted file mode 100644
index b97647de9e6..00000000000
--- a/tests/lib_2/mirrors/get_symbol_name_no_such_method_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Test that MirrorSystem.getName works correctly on symbols returned from
-/// Invocation.memberName.  This is especially relevant when minifying.
-
-import 'dart:mirrors' show MirrorSystem;
-
-class Foo {
-  String noSuchMethod(Invocation invocation) {
-    return MirrorSystem.getName(invocation.memberName);
-  }
-}
-
-expect(expected, actual) {
-  if (expected != actual) {
-    throw 'Expected: "$expected", but got "$actual"';
-  }
-}
-
-main() {
-  dynamic foo = new Foo();
-  expect('foo', foo.foo);
-  expect('foo', foo.foo());
-  expect('foo', foo.foo(null));
-  expect('foo', foo.foo(null, null));
-  expect('foo', foo.foo(a: null, b: null));
-
-  expect('baz', foo.baz);
-  expect('baz', foo.baz());
-  expect('baz', foo.baz(null));
-  expect('baz', foo.baz(null, null));
-  expect('baz', foo.baz(a: null, b: null));
-}
diff --git a/tests/lib_2/mirrors/get_symbol_name_test.dart b/tests/lib_2/mirrors/get_symbol_name_test.dart
deleted file mode 100644
index d271906900f..00000000000
--- a/tests/lib_2/mirrors/get_symbol_name_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors' show MirrorSystem;
-
-expect(expected, actual) {
-  if (expected != actual) {
-    throw 'Expected: "$expected", but got "$actual"';
-  }
-}
-
-main() {
-  expect('fisk', MirrorSystem.getName(const Symbol('fisk')));
-  expect('fisk', MirrorSystem.getName(new Symbol('fisk')));
-}
diff --git a/tests/lib_2/mirrors/globalized_closures2_test.dart b/tests/lib_2/mirrors/globalized_closures2_test.dart
deleted file mode 100644
index 3240c043842..00000000000
--- a/tests/lib_2/mirrors/globalized_closures2_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart2js crashed on this example. It globalized both closures and created
-// top-level classes for closures (here the globalized_closure{2}). There was a
-// name-clash (both being named "main_closure") which led to a crash.
-
-library main;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-confuse(x) {
-  if (new DateTime.now().millisecondsSinceEpoch == 42) {
-    return confuse(() => print(42));
-  }
-  return x;
-}
-
-main() {
-  var globalized_closure = confuse(() => 499);
-  var globalized_closure2 = confuse(() => 99);
-  globalized_closure();
-  globalized_closure2();
-  final ms = currentMirrorSystem();
-  var lib = ms.findLibrary(#main);
-  var collectedParents = [];
-  var classes = lib.declarations.values;
-  for (var c in classes) {
-    if (c is ClassMirror && c.superclass != null) {
-      collectedParents.add(MirrorSystem.getName(c.superclass.simpleName));
-    }
-  }
-  Expect.isTrue(collectedParents.isEmpty); //  //# 00: ok
-}
diff --git a/tests/lib_2/mirrors/globalized_closures_test.dart b/tests/lib_2/mirrors/globalized_closures_test.dart
deleted file mode 100644
index 1b348d65060..00000000000
--- a/tests/lib_2/mirrors/globalized_closures_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Dart2js crashed on this example. It globalized closures and created
-// top-level classes for closures (here the globalized_closure). There was a
-// name-clash with the global "main_closure" class which led to a crash.
-
-library main;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class main_closure {}
-
-confuse(x) {
-  if (new DateTime.now().millisecondsSinceEpoch == 42) return confuse(() => 42);
-  return x;
-}
-
-main() {
-  new main_closure();
-  var globalized_closure = confuse(() => 499);
-  globalized_closure();
-  final ms = currentMirrorSystem();
-  var lib = ms.findLibrary(#main);
-  var collectedParents = [];
-  var classes = lib.declarations.values;
-  for (var c in classes) {
-    if (c is ClassMirror && c.superclass != null) {
-      collectedParents.add(MirrorSystem.getName(c.superclass.simpleName));
-    }
-  }
-  Expect.listEquals(["Object"], collectedParents); //  //# 00: ok
-}
diff --git a/tests/lib_2/mirrors/hierarchy_invariants_test.dart b/tests/lib_2/mirrors/hierarchy_invariants_test.dart
deleted file mode 100644
index 4dcf869307e..00000000000
--- a/tests/lib_2/mirrors/hierarchy_invariants_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.hierarchy_invariants_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-isAnonymousMixinApplication(classMirror) {
-  return MirrorSystem.getName(classMirror.simpleName).contains(' with ');
-}
-
-checkClass(classMirror) {
-  Expect.isTrue(classMirror.simpleName is Symbol);
-  Expect.notEquals(null, classMirror.owner);
-  Expect.isTrue(classMirror.owner is LibraryMirror);
-  if (!isAnonymousMixinApplication(classMirror)) {
-    Expect.equals(classMirror.originalDeclaration,
-        classMirror.owner.declarations[classMirror.simpleName]);
-  } else {
-    Expect.isNull(classMirror.owner.declarations[classMirror.simpleName]);
-  }
-  Expect.isTrue(classMirror.superinterfaces is List);
-  if (classMirror.superclass == null) {
-    Expect.isTrue((reflectClass(Object) == classMirror) ||
-        (classMirror.toString() == "ClassMirror on 'FutureOr'"));
-  } else {
-    checkClass(classMirror.superclass);
-  }
-}
-
-checkLibrary(libraryMirror) {
-  libraryMirror.declarations.values
-      .where((d) => d is ClassMirror)
-      .forEach(checkClass);
-}
-
-main() {
-  currentMirrorSystem().libraries.values.forEach(checkLibrary);
-}
diff --git a/tests/lib_2/mirrors/hot_get_field_test.dart b/tests/lib_2/mirrors/hot_get_field_test.dart
deleted file mode 100644
index 719832bdb5b..00000000000
--- a/tests/lib_2/mirrors/hot_get_field_test.dart
+++ /dev/null
@@ -1,69 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.hot_get_field;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-class C {
-  var field;
-  var _field;
-  operator +(other) => field + other;
-}
-
-const int optimizationThreshold = 20;
-
-testPublic() {
-  var c = new C();
-  var im = reflect(c);
-
-  for (int i = 0; i < (2 * optimizationThreshold); i++) {
-    c.field = i;
-    Expect.equals(i, im.getField(#field).reflectee);
-  }
-}
-
-testPrivate() {
-  var c = new C();
-  var im = reflect(c);
-
-  for (int i = 0; i < (2 * optimizationThreshold); i++) {
-    c._field = i;
-    Expect.equals(i, im.getField(#_field).reflectee);
-  }
-}
-
-testPrivateWrongLibrary() {
-  var c = new C();
-  var im = reflect(c);
-  var selector = MirrorSystem.getSymbol(
-      '_field', reflectClass(Mirror).owner as LibraryMirror);
-
-  for (int i = 0; i < (2 * optimizationThreshold); i++) {
-    Expect.throwsNoSuchMethodError(() => im.getField(selector));
-  }
-}
-
-testOperator() {
-  var plus = const Symbol("+");
-  var c = new C();
-  var im = reflect(c);
-
-  for (int i = 0; i < (2 * optimizationThreshold); i++) {
-    c.field = i;
-    var closurizedPlus = im.getField(plus).reflectee;
-    Expect.isTrue(closurizedPlus is Function);
-    Expect.equals(2 * i, closurizedPlus(i));
-  }
-}
-
-main() {
-  testPublic();
-  testPrivate();
-  testPrivateWrongLibrary();
-  testOperator();
-}
diff --git a/tests/lib_2/mirrors/hot_set_field_test.dart b/tests/lib_2/mirrors/hot_set_field_test.dart
deleted file mode 100644
index 2182eb66155..00000000000
--- a/tests/lib_2/mirrors/hot_set_field_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.hot_set_field;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-class C {
-  var field;
-  var _field;
-}
-
-const int optimizationThreshold = 20;
-
-testPublic() {
-  var c = new C();
-  var im = reflect(c);
-
-  for (int i = 0; i < (2 * optimizationThreshold); i++) {
-    im.setField(#field, i);
-    Expect.equals(i, c.field);
-  }
-}
-
-testPrivate() {
-  var c = new C();
-  var im = reflect(c);
-
-  for (int i = 0; i < (2 * optimizationThreshold); i++) {
-    im.setField(#_field, i);
-    Expect.equals(i, c._field);
-  }
-}
-
-testPrivateWrongLibrary() {
-  var c = new C();
-  var im = reflect(c);
-  var selector = MirrorSystem.getSymbol(
-      '_field', reflectClass(Mirror).owner as LibraryMirror);
-
-  for (int i = 0; i < (2 * optimizationThreshold); i++) {
-    Expect.throwsNoSuchMethodError(() => im.setField(selector, i));
-  }
-}
-
-main() {
-  testPublic();
-  testPrivate();
-  testPrivateWrongLibrary();
-}
diff --git a/tests/lib_2/mirrors/immutable_collections_test.dart b/tests/lib_2/mirrors/immutable_collections_test.dart
deleted file mode 100644
index 614b3d93c3f..00000000000
--- a/tests/lib_2/mirrors/immutable_collections_test.dart
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.immutable_collections;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-bool someException(e) => e is Exception || e is Error;
-
-checkList(dynamic l, String reason) {
-  Expect.throws(() => l[0] = 'value', someException, reason);
-  Expect.throws(() => l.add('value'), someException, reason);
-  Expect.throws(() => l.clear(), someException, reason);
-}
-
-checkMap(Map m, String reason) {
-  Expect.throws(() => m[#key] = 'value', someException, reason);
-  checkList(m.keys, '$reason keys');
-  checkList(m.values, '$reason values');
-}
-
-checkVariable(VariableMirror vm) {
-  checkList(vm.metadata, 'VariableMirror.metadata');
-}
-
-checkTypeVariable(TypeVariableMirror tvm) {
-  checkList(tvm.metadata, 'TypeVariableMirror.metadata');
-}
-
-checkParameter(ParameterMirror pm) {
-  checkList(pm.metadata, 'ParameterMirror.metadata');
-}
-
-checkMethod(MethodMirror mm) {
-  checkList(mm.parameters, 'MethodMirror.parameters');
-  checkList(mm.metadata, 'MethodMirror.metadata');
-
-  mm.parameters.forEach(checkParameter);
-}
-
-checkClass(ClassMirror cm) {
-  checkMap(cm.declarations, 'ClassMirror.declarations');
-  checkMap(cm.instanceMembers, 'ClassMirror.instanceMembers');
-  checkMap(cm.staticMembers, 'ClassMirror.staticMembers');
-  checkList(cm.metadata, 'ClassMirror.metadata');
-  checkList(cm.superinterfaces, 'ClassMirror.superinterfaces');
-  checkList(cm.typeArguments, 'ClassMirror.typeArguments');
-  checkList(cm.typeVariables, 'ClassMirror.typeVariables');
-
-  cm.declarations.values.forEach(checkDeclaration);
-  cm.instanceMembers.values.forEach(checkDeclaration);
-  cm.staticMembers.values.forEach(checkDeclaration);
-  cm.typeVariables.forEach(checkTypeVariable);
-}
-
-checkType(TypeMirror tm) {
-  checkList(tm.metadata, 'TypeMirror.metadata');
-}
-
-checkDeclaration(DeclarationMirror dm) {
-  if (dm is MethodMirror) checkMethod(dm);
-  if (dm is ClassMirror) checkClass(dm);
-  if (dm is TypeMirror) checkType(dm);
-  if (dm is VariableMirror) checkVariable(dm);
-  if (dm is TypeVariableMirror) checkTypeVariable(dm);
-}
-
-checkLibrary(LibraryMirror lm) {
-  checkMap(lm.declarations, 'LibraryMirror.declarations');
-  checkList(lm.metadata, 'LibraryMirror.metadata');
-
-  lm.declarations.values.forEach(checkDeclaration);
-}
-
-main() {
-  currentMirrorSystem().libraries.values.forEach(checkLibrary);
-  checkType(currentMirrorSystem().voidType);
-  checkType(currentMirrorSystem().dynamicType);
-}
diff --git a/tests/lib_2/mirrors/inference_and_no_such_method_test.dart b/tests/lib_2/mirrors/inference_and_no_such_method_test.dart
deleted file mode 100644
index 8a0e832b64e..00000000000
--- a/tests/lib_2/mirrors/inference_and_no_such_method_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that did type inferencing on parameters
-// whose type may change at runtime due to an invocation through
-// [InstanceMirror.delegate].
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-class A {
-  noSuchMethod(im) {
-    reflect(new B()).delegate(im);
-  }
-}
-
-class B {
-  foo(a) => a + 42;
-}
-
-main() {
-  Expect.equals(42, new B().foo(0));
-  dynamic a = new A();
-  Expect.throwsTypeError(() => a.foo('foo'));
-}
diff --git a/tests/lib_2/mirrors/inherit_field_test.dart b/tests/lib_2/mirrors/inherit_field_test.dart
deleted file mode 100644
index 0650120991f..00000000000
--- a/tests/lib_2/mirrors/inherit_field_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test inherited fields.
-
-library test.inherit_field_test;
-
-import 'dart:mirrors';
-
-import 'stringify.dart';
-
-class Foo {
-  var field;
-}
-
-class Bar extends Foo {}
-
-void main() {
-  expect(
-      'Variable(s(field) in s(Foo))', reflectClass(Foo).declarations[#field]);
-  expect('<null>', reflectClass(Bar).declarations[#field]);
-}
diff --git a/tests/lib_2/mirrors/inherited_metadata_test.dart b/tests/lib_2/mirrors/inherited_metadata_test.dart
deleted file mode 100644
index 3cb47218049..00000000000
--- a/tests/lib_2/mirrors/inherited_metadata_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.mirrors;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class RemoteClass {
-  final String name;
-  const RemoteClass([this.name = "default"]);
-}
-
-class A {}
-
-@RemoteClass("ASF")
-class B extends A {}
-
-class C extends B {}
-
-void main() {
-  bool foundB = false;
-
-  MirrorSystem mirrorSystem = currentMirrorSystem();
-  mirrorSystem.libraries.forEach((lk, l) {
-    l.declarations.forEach((dk, d) {
-      if (d is ClassMirror) {
-        d.metadata.forEach((md) {
-          InstanceMirror metadata = md as InstanceMirror;
-          // Metadata must not be inherited.
-          if (metadata.type == reflectClass(RemoteClass)) {
-            Expect.isFalse(foundB);
-            Expect.equals(#B, d.simpleName);
-            foundB = true;
-          }
-        });
-      }
-    });
-  });
-
-  Expect.isTrue(foundB);
-}
diff --git a/tests/lib_2/mirrors/initializing_formals_test.dart b/tests/lib_2/mirrors/initializing_formals_test.dart
deleted file mode 100644
index 60901a4260b..00000000000
--- a/tests/lib_2/mirrors/initializing_formals_test.dart
+++ /dev/null
@@ -1,161 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.initializing_formals;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-class Class<T> {
-  num numField = 0;
-  bool boolField = false;
-  String stringField = "";
-  T tField;
-  dynamic _privateField;
-
-  Class.nongeneric(this.numField);
-  Class.named({this.boolField = false});
-  Class.optPos([this.stringField = 'default']);
-  Class.generic(this.tField);
-  Class.private(this._privateField);
-
-  Class.explicitType(num this.numField);
-  Class.withVar(var this.numField);
-  Class.withSubtype(int this.numField);
-}
-
-class Constant {
-  final num value;
-  const Constant(this.value);
-  const Constant.marked(final this.value);
-}
-
-main() {
-  MethodMirror mm;
-  ParameterMirror pm;
-
-  mm = reflectClass(Class).declarations[#Class.nongeneric] as MethodMirror;
-  pm = mm.parameters.single;
-  Expect.equals(#numField, pm.simpleName);
-  Expect.equals(reflectClass(num), pm.type);
-  Expect.isFalse(pm.isNamed); // //# 01: ok
-  Expect.isFalse(pm.isFinal); // //# 01: ok
-  Expect.isFalse(pm.isOptional); // //# 01: ok
-  Expect.isFalse(pm.hasDefaultValue); // //# 01: ok
-  Expect.isFalse(pm.isPrivate);
-  Expect.isFalse(pm.isStatic);
-  Expect.isFalse(pm.isTopLevel);
-
-  mm = reflectClass(Class).declarations[#Class.named] as MethodMirror;
-  pm = mm.parameters.single;
-  Expect.equals(#boolField, pm.simpleName);
-  Expect.equals(reflectClass(bool), pm.type);
-  Expect.isTrue(pm.isNamed); // //# 01: ok
-  Expect.isFalse(pm.isFinal); // //# 01: ok
-  Expect.isTrue(pm.isOptional); // //# 01: ok
-  Expect.isTrue(pm.hasDefaultValue); // //# 01: ok
-  Expect.equals(false, pm.defaultValue.reflectee); // //# 01: ok
-  Expect.isFalse(pm.isPrivate);
-  Expect.isFalse(pm.isStatic);
-  Expect.isFalse(pm.isTopLevel);
-
-  mm = reflectClass(Class).declarations[#Class.optPos] as MethodMirror;
-  pm = mm.parameters.single;
-  Expect.equals(#stringField, pm.simpleName);
-  Expect.equals(reflectClass(String), pm.type);
-  Expect.isFalse(pm.isNamed); // //# 01: ok
-  Expect.isFalse(pm.isFinal); // //# 01: ok
-  Expect.isTrue(pm.isOptional); // //# 01: ok
-  Expect.isTrue(pm.hasDefaultValue); // //# 01: ok
-  Expect.equals('default', pm.defaultValue.reflectee); // //# 01: ok
-  Expect.isFalse(pm.isPrivate);
-  Expect.isFalse(pm.isStatic);
-  Expect.isFalse(pm.isTopLevel);
-
-  mm = reflectClass(Class).declarations[#Class.generic] as MethodMirror;
-  pm = mm.parameters.single;
-  Expect.equals(#tField, pm.simpleName);
-  Expect.equals(reflectClass(Class).typeVariables.single, pm.type);
-  Expect.isFalse(pm.isNamed); // //# 01: ok
-  Expect.isFalse(pm.isFinal); // //# 01: ok
-  Expect.isFalse(pm.isOptional); // //# 01: ok
-  Expect.isFalse(pm.hasDefaultValue); // //# 01: ok
-  Expect.isFalse(pm.isPrivate);
-  Expect.isFalse(pm.isStatic);
-  Expect.isFalse(pm.isTopLevel);
-
-  mm = reflectClass(Class).declarations[#Class.private] as MethodMirror;
-  pm = mm.parameters.single;
-  Expect.equals(#_privateField, pm.simpleName); // //# 03: ok
-  Expect.equals(currentMirrorSystem().dynamicType, pm.type);
-  Expect.isFalse(pm.isNamed); // //# 01: ok
-  Expect.isFalse(pm.isFinal); // //# 01: ok
-  Expect.isFalse(pm.isOptional); // //# 01: ok
-  Expect.isFalse(pm.hasDefaultValue); // //# 01: ok
-  Expect.isTrue(pm.isPrivate);
-  Expect.isFalse(pm.isStatic);
-  Expect.isFalse(pm.isTopLevel);
-
-  mm = reflectClass(Class).declarations[#Class.explicitType] as MethodMirror;
-  pm = mm.parameters.single;
-  Expect.equals(#numField, pm.simpleName);
-  Expect.equals(reflectClass(num), pm.type);
-  Expect.isFalse(pm.isNamed); // //# 01: ok
-  Expect.isFalse(pm.isFinal); // //# 01: ok
-  Expect.isFalse(pm.isOptional); // //# 01: ok
-  Expect.isFalse(pm.hasDefaultValue); // //# 01: ok
-  Expect.isFalse(pm.isPrivate);
-  Expect.isFalse(pm.isStatic);
-  Expect.isFalse(pm.isTopLevel);
-
-  mm = reflectClass(Class).declarations[#Class.withVar] as MethodMirror;
-  pm = mm.parameters.single;
-  Expect.equals(#numField, pm.simpleName);
-  Expect.equals(reflectClass(num), pm.type);
-  Expect.isFalse(pm.isNamed); // //# 01: ok
-  Expect.isFalse(pm.isFinal); // //# 01: ok
-  Expect.isFalse(pm.isOptional); // //# 01: ok
-  Expect.isFalse(pm.hasDefaultValue); // //# 01: ok
-  Expect.isFalse(pm.isPrivate);
-  Expect.isFalse(pm.isStatic);
-  Expect.isFalse(pm.isTopLevel);
-
-  mm = reflectClass(Class).declarations[#Class.withSubtype] as MethodMirror;
-  pm = mm.parameters.single;
-  Expect.equals(#numField, pm.simpleName);
-  Expect.equals(reflectClass(int), pm.type);
-  Expect.isFalse(pm.isNamed); // //# 01: ok
-  Expect.isFalse(pm.isFinal); // //# 01: ok
-  Expect.isFalse(pm.isOptional); // //# 01: ok
-  Expect.isFalse(pm.hasDefaultValue); // //# 01: ok
-  Expect.isFalse(pm.isPrivate);
-  Expect.isFalse(pm.isStatic);
-  Expect.isFalse(pm.isTopLevel);
-
-  mm = reflectClass(Constant).declarations[#Constant] as MethodMirror;
-  pm = mm.parameters.single;
-  Expect.equals(#value, pm.simpleName);
-  Expect.equals(reflectClass(num), pm.type);
-  Expect.isFalse(pm.isNamed); // //# 01: ok
-  Expect.isFalse(pm.isFinal);  // N.B. // //# 01: ok
-  Expect.isFalse(pm.isOptional); // //# 01: ok
-  Expect.isFalse(pm.hasDefaultValue); // //# 01: ok
-  Expect.isFalse(pm.isPrivate);
-  Expect.isFalse(pm.isStatic);
-  Expect.isFalse(pm.isTopLevel);
-
-  mm = reflectClass(Constant).declarations[#Constant.marked] as MethodMirror;
-  pm = mm.parameters.single;
-  Expect.equals(#value, pm.simpleName);
-  Expect.equals(reflectClass(num), pm.type);
-  Expect.isFalse(pm.isNamed); // //# 01: ok
-  Expect.isTrue(pm.isFinal);  // N.B. // //# 01: ok
-  Expect.isFalse(pm.isOptional); // //# 01: ok
-  Expect.isFalse(pm.hasDefaultValue); // //# 01: ok
-  Expect.isFalse(pm.isPrivate);
-  Expect.isFalse(pm.isStatic);
-  Expect.isFalse(pm.isTopLevel);
-}
diff --git a/tests/lib_2/mirrors/instance_creation_in_function_annotation_test.dart b/tests/lib_2/mirrors/instance_creation_in_function_annotation_test.dart
deleted file mode 100644
index 87658225577..00000000000
--- a/tests/lib_2/mirrors/instance_creation_in_function_annotation_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Verify that instance creation expressions inside function
-// annotations are properly handled.  See dartbug.com/23354
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-class C {
-  final String s;
-  const C(this.s);
-}
-
-class D {
-  final C c;
-  const D(this.c);
-}
-
-@D(const C('foo'))
-f() {}
-
-main() {
-  ClosureMirror closureMirror = reflect(f) as ClosureMirror;
-  List<InstanceMirror> metadata = closureMirror.function.metadata;
-  Expect.equals(1, metadata.length);
-  Expect.equals(metadata[0].reflectee.c.s, 'foo');
-}
diff --git a/tests/lib_2/mirrors/instance_members_easier_test.dart b/tests/lib_2/mirrors/instance_members_easier_test.dart
deleted file mode 100644
index 825f21cd816..00000000000
--- a/tests/lib_2/mirrors/instance_members_easier_test.dart
+++ /dev/null
@@ -1,93 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.instance_members;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-import 'declarations_model_easier.dart' as declarations_model;
-
-selectKeys<K, V>(Map<K, V> map, bool Function(V) predicate) {
-  return map.keys.where((K key) => predicate(map[key]));
-}
-
-class EasierSuperclass {
-  shuper() {}
-  static staticShuper() {}
-}
-
-class EasierMixin {
-  mixin() {}
-  static staticMixin() {}
-}
-
-class EasierMixinApplication extends EasierSuperclass with EasierMixin {
-  application() {}
-  static staticApplication() {}
-}
-
-class Derived extends EasierMixinApplication {
-  derived() {}
-  static staticDerived() {}
-}
-
-main() {
-  ClassMirror cm = reflectClass(declarations_model.Class);
-
-  Expect.setEquals([
-    #+,
-    #instanceVariable,
-    const Symbol('instanceVariable='),
-    #instanceGetter,
-    const Symbol('instanceSetter='),
-    #instanceMethod,
-    #-,
-    #inheritedInstanceVariable,
-    const Symbol('inheritedInstanceVariable='),
-    #inheritedInstanceGetter,
-    const Symbol('inheritedInstanceSetter='),
-    #inheritedInstanceMethod,
-    #hashCode,
-    #runtimeType,
-    #==,
-    #noSuchMethod,
-    #toString
-  ], selectKeys(cm.instanceMembers, (dm) => !dm.isPrivate));
-  // Filter out private to avoid implementation-specific members of Object.
-
-  Expect.setEquals([
-    #instanceVariable,
-    const Symbol('instanceVariable='),
-    #inheritedInstanceVariable,
-    const Symbol('inheritedInstanceVariable=')
-  ], selectKeys(cm.instanceMembers, (dm) => !dm.isPrivate && dm.isSynthetic));
-
-  cm = reflectClass(Derived);
-  Expect.setEquals([
-    #derived,
-    #shuper,
-    #mixin,
-    #application,
-    #hashCode,
-    #runtimeType,
-    #==,
-    #noSuchMethod,
-    #toString
-  ], selectKeys(cm.instanceMembers, (dm) => !dm.isPrivate));
-
-  cm = reflectClass(EasierMixinApplication);
-  Expect.setEquals([
-    #shuper,
-    #mixin,
-    #application,
-    #hashCode,
-    #runtimeType,
-    #==,
-    #noSuchMethod,
-    #toString
-  ], selectKeys(cm.instanceMembers, (dm) => !dm.isPrivate));
-}
diff --git a/tests/lib_2/mirrors/instance_members_test.dart b/tests/lib_2/mirrors/instance_members_test.dart
deleted file mode 100644
index f8fcf0e9f92..00000000000
--- a/tests/lib_2/mirrors/instance_members_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.instance_members;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-import 'declarations_model.dart' as declarations_model;
-
-selectKeys<K, V>(Map<K, V> map, bool Function(V) predicate) {
-  return map.keys.where((K key) => predicate(map[key]));
-}
-
-main() {
-  ClassMirror cm = reflectClass(declarations_model.Class);
-
-  Expect.setEquals([
-    #+,
-    #instanceVariable,
-    const Symbol('instanceVariable='),
-    #instanceGetter,
-    const Symbol('instanceSetter='),
-    #instanceMethod,
-    #-,
-    #inheritedInstanceVariable,
-    const Symbol('inheritedInstanceVariable='),
-    #inheritedInstanceGetter,
-    const Symbol('inheritedInstanceSetter='),
-    #inheritedInstanceMethod,
-    #*,
-    #mixinInstanceVariable,
-    const Symbol('mixinInstanceVariable='),
-    #mixinInstanceGetter,
-    const Symbol('mixinInstanceSetter='),
-    #mixinInstanceMethod,
-    #hashCode,
-    #runtimeType,
-    #==,
-    #noSuchMethod,
-    #toString
-  ], selectKeys(cm.instanceMembers, (dm) => !dm.isPrivate));
-  // Filter out private to avoid implementation-specific members of Object.
-
-  Expect.setEquals([
-    #instanceVariable,
-    const Symbol('instanceVariable='),
-    #inheritedInstanceVariable,
-    const Symbol('inheritedInstanceVariable='),
-    #mixinInstanceVariable,
-    const Symbol('mixinInstanceVariable=')
-  ], selectKeys(cm.instanceMembers, (dm) => !dm.isPrivate && dm.isSynthetic));
-}
diff --git a/tests/lib_2/mirrors/instance_members_unimplemented_interface_test.dart b/tests/lib_2/mirrors/instance_members_unimplemented_interface_test.dart
deleted file mode 100644
index 7178b7ef4dd..00000000000
--- a/tests/lib_2/mirrors/instance_members_unimplemented_interface_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.instance_members_unimplemented_interface;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-class I {
-  implementMe() {}
-}
-
-abstract class C implements I {}
-
-selectKeys<K, V>(Map<K, V> map, bool predicate(V)) {
-  return map.keys.where((key) => predicate(map[key]));
-}
-
-main() {
-  ClassMirror cm = reflectClass(C);
-
-  // N.B.: Does not include #implementMe.
-  Expect.setEquals([#hashCode, #runtimeType, #==, #noSuchMethod, #toString],
-      selectKeys(cm.instanceMembers, (dm) => !dm.isPrivate));
-  // Filter out private to avoid implementation-specific members of Object.
-}
diff --git a/tests/lib_2/mirrors/instance_members_with_override_test.dart b/tests/lib_2/mirrors/instance_members_with_override_test.dart
deleted file mode 100644
index 989b00746b5..00000000000
--- a/tests/lib_2/mirrors/instance_members_with_override_test.dart
+++ /dev/null
@@ -1,88 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.instance_members_with_override;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-class S {
-  var field;
-  final finalField = 0;
-  method() {}
-  get getter {}
-  set setter(x) {}
-  notOverridden() {}
-}
-
-abstract class C extends S {
-  var field;
-  final finalField = 0;
-  method() {}
-  get getter {}
-  set setter(x) {}
-  /* abstract */ notOverridden();
-}
-
-selectKeys<K, V>(Map<K, V> map, bool Function(V) predicate) {
-  return map.keys.where((K key) => predicate(map[key]));
-}
-
-main() {
-  ClassMirror sMirror = reflectClass(S);
-  ClassMirror cMirror = reflectClass(C);
-
-  Expect.setEquals([
-    #field,
-    const Symbol('field='),
-    #finalField,
-    #method,
-    #getter,
-    const Symbol('setter='),
-    #notOverridden,
-    #hashCode,
-    #runtimeType,
-    #==,
-    #noSuchMethod,
-    #toString
-  ], selectKeys(sMirror.instanceMembers, (dm) => !dm.isPrivate));
-  // Filter out private to avoid implementation-specific members of Object.
-
-  Expect.equals(sMirror, sMirror.instanceMembers[#field].owner);
-  Expect.equals(sMirror, sMirror.instanceMembers[const Symbol('field=')].owner);
-  Expect.equals(sMirror, sMirror.instanceMembers[#finalField].owner);
-  Expect.equals(sMirror, sMirror.instanceMembers[#method].owner);
-  Expect.equals(sMirror, sMirror.instanceMembers[#getter].owner);
-  Expect.equals(
-      sMirror, sMirror.instanceMembers[const Symbol('setter=')].owner);
-
-  Expect.setEquals([
-    #field,
-    const Symbol('field='),
-    #finalField,
-    #method,
-    #getter,
-    const Symbol('setter='),
-    #notOverridden,
-    #hashCode,
-    #runtimeType,
-    #==,
-    #noSuchMethod,
-    #toString
-  ], selectKeys(cMirror.instanceMembers, (dm) => !dm.isPrivate));
-  // Filter out private to avoid implementation-specific members of Object.
-
-  Expect.equals(cMirror, cMirror.instanceMembers[#field].owner);
-  Expect.equals(cMirror, cMirror.instanceMembers[const Symbol('field=')].owner);
-  Expect.equals(cMirror, cMirror.instanceMembers[#finalField].owner);
-  Expect.equals(cMirror, cMirror.instanceMembers[#method].owner);
-  Expect.equals(cMirror, cMirror.instanceMembers[#getter].owner);
-  Expect.equals(
-      cMirror, cMirror.instanceMembers[const Symbol('setter=')].owner);
-
-  Expect.equals(sMirror, sMirror.instanceMembers[#notOverridden].owner);
-  Expect.equals(sMirror, cMirror.instanceMembers[#notOverridden].owner);
-}
diff --git a/tests/lib_2/mirrors/instantiate_abstract_class_test.dart b/tests/lib_2/mirrors/instantiate_abstract_class_test.dart
deleted file mode 100644
index c5055c2f44a..00000000000
--- a/tests/lib_2/mirrors/instantiate_abstract_class_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.instantiate_abstract_class;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-assertInstantiationErrorOnGenerativeConstructors(classMirror) {
-  classMirror.declarations.values.forEach((decl) {
-    if (decl is! MethodMirror) return;
-    if (!decl.isGenerativeConstructor) return;
-    var args = new List.filled(decl.parameters.length, null);
-    Expect.throws(
-        () => classMirror.newInstance(decl.constructorName, args),
-        (e) => e is AbstractClassInstantiationError,
-        '${decl.qualifiedName} should have failed');
-  });
-}
-
-runFactoryConstructors(classMirror) {
-  classMirror.declarations.values.forEach((decl) {
-    if (decl is! MethodMirror) return;
-    if (!decl.isFactoryConstructor) return;
-    var args = new List.filled(decl.parameters.length, null);
-    classMirror.newInstance(decl.constructorName, args); // Should not throw.
-  });
-}
-
-abstract class AbstractClass {
-  AbstractClass();
-  AbstractClass.named();
-  factory AbstractClass.named2() => new ConcreteClass();
-}
-
-class ConcreteClass implements AbstractClass {}
-
-main() {
-  assertInstantiationErrorOnGenerativeConstructors(reflectType(num));
-  assertInstantiationErrorOnGenerativeConstructors(reflectType(double));
-  assertInstantiationErrorOnGenerativeConstructors(reflectType(StackTrace));
-
-  assertInstantiationErrorOnGenerativeConstructors(reflectType(AbstractClass));
-  runFactoryConstructors(reflectType(AbstractClass));
-}
diff --git a/tests/lib_2/mirrors/intercepted_cache_test.dart b/tests/lib_2/mirrors/intercepted_cache_test.dart
deleted file mode 100644
index 26fe5756b56..00000000000
--- a/tests/lib_2/mirrors/intercepted_cache_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This is a test for a problem in how dart2js cached InstanceMirror.invoke,
-// etc. The test is using getField, as invoke, setField, and getField all share
-// the same caching.
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class Foo {
-  Foo(this.length);
-  int length;
-}
-
-main() {
-  Expect.equals(1, reflect(new Foo(1)).getField(#length).reflectee);
-  Expect.equals(2, reflect(new Foo(2)).getField(#length).reflectee);
-  Expect.equals(0, reflect([]).getField(#length).reflectee);
-}
diff --git a/tests/lib_2/mirrors/intercepted_class_test.dart b/tests/lib_2/mirrors/intercepted_class_test.dart
deleted file mode 100644
index 4c3a49061ef..00000000000
--- a/tests/lib_2/mirrors/intercepted_class_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Ensure that classes handled specially by dart2js can be reflected on.
-
-library test.intercepted_class_test;
-
-import 'dart:mirrors';
-
-import 'stringify.dart' show stringify, expect;
-
-checkClassMirrorMethods(ClassMirror cls) {
-  var variables = new Map();
-  cls.declarations.forEach((Symbol key, DeclarationMirror value) {
-    if (value is VariableMirror && !value.isStatic && !value.isPrivate) {
-      variables[key] = value;
-    }
-  });
-  expect('{}', variables);
-}
-
-checkClassMirror(ClassMirror cls, String name) {
-  expect('s($name)', cls.simpleName);
-  checkClassMirrorMethods(cls);
-}
-
-main() {
-  checkClassMirror(reflectClass(String), 'String');
-  checkClassMirror(reflectClass(int), 'int');
-  checkClassMirror(reflectClass(double), 'double');
-  checkClassMirror(reflectClass(num), 'num');
-  checkClassMirror(reflectClass(bool), 'bool');
-  checkClassMirror(reflectClass(List), 'List');
-}
diff --git a/tests/lib_2/mirrors/intercepted_object_test.dart b/tests/lib_2/mirrors/intercepted_object_test.dart
deleted file mode 100644
index 992ebf06a67..00000000000
--- a/tests/lib_2/mirrors/intercepted_object_test.dart
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Ensure that objects handled specially by dart2js can be reflected on.
-
-library test.intercepted_object_test;
-
-import 'dart:mirrors';
-
-import 'stringify.dart' show stringify, expect;
-
-import 'intercepted_class_test.dart' show checkClassMirrorMethods;
-
-checkImplements(object, String name) {
-  ClassMirror cls = reflect(object).type;
-  checkClassMirrorMethods(cls);
-
-  // The VM implements List through an intermediate abstract class.
-  if (cls.superinterfaces.isEmpty && object is List) {
-    cls = cls.superclass;
-  }
-
-  // The VM implements String through an intermediate abstract
-  // class.
-  if (cls.superinterfaces.isEmpty && object is String) {
-    cls = cls.superclass;
-  }
-
-  // The VM implements int through an intermediate abstract
-  // class.
-  if (object is int &&
-      stringify(cls.superclass.simpleName) == 's(_IntegerImplementation)') {
-    cls = cls.superclass;
-  }
-
-  List<ClassMirror> superinterfaces = cls.superinterfaces;
-  String symName = 's($name)';
-  for (ClassMirror superinterface in superinterfaces) {
-    print(superinterface.simpleName);
-    if (symName == stringify(superinterface.simpleName)) {
-      checkClassMirrorMethods(superinterface);
-      return;
-    }
-  }
-
-  // A class implements itself, even if not explicitly declared.
-  if (symName == stringify(cls.simpleName)) {
-    checkClassMirrorMethods(cls);
-    return;
-  }
-
-  // TODO(floitsch): use correct fail
-  expect(name, "super interface not found");
-}
-
-main() {
-  checkImplements('', 'String');
-  checkImplements(1, 'int');
-  checkImplements(1.5, 'double');
-  checkImplements(true, 'bool');
-  checkImplements(false, 'bool');
-  checkImplements([], 'List');
-}
diff --git a/tests/lib_2/mirrors/intercepted_superclass_test.dart b/tests/lib_2/mirrors/intercepted_superclass_test.dart
deleted file mode 100644
index 6a01ceca5a4..00000000000
--- a/tests/lib_2/mirrors/intercepted_superclass_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.intercepted_superclass_test;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-check(ClassMirror cm) {
-  Expect.isTrue(cm is ClassMirror);
-  Expect.isNotNull(cm);
-}
-
-main() {
-  check(reflect('').type.superclass);
-  check(reflect(1).type.superclass);
-  check(reflect(1.5).type.superclass);
-  check(reflect(true).type.superclass);
-  check(reflect(false).type.superclass);
-  check(reflect([]).type.superclass);
-
-  check(reflectClass(String).superclass);
-  check(reflectClass(int).superclass);
-  check(reflectClass(double).superclass);
-  check(reflectClass(num).superclass);
-  check(reflectClass(bool).superclass);
-  check(reflectClass(List).superclass);
-}
diff --git a/tests/lib_2/mirrors/invocation_cache_test.dart b/tests/lib_2/mirrors/invocation_cache_test.dart
deleted file mode 100644
index d016222ad69..00000000000
--- a/tests/lib_2/mirrors/invocation_cache_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class A {
-  toString() => "A";
-}
-
-main() {
-  // The invocation cache must not find the 'toString' from JavaScript's
-  // Object.prototype.
-  var toString = reflect(new A()).getField(#toString).reflectee;
-  Expect.equals("A", Function.apply(toString, [], {}));
-}
diff --git a/tests/lib_2/mirrors/invocation_fuzz_test.dart b/tests/lib_2/mirrors/invocation_fuzz_test.dart
deleted file mode 100644
index fbc1ca64ee9..00000000000
--- a/tests/lib_2/mirrors/invocation_fuzz_test.dart
+++ /dev/null
@@ -1,200 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test reflectively enumerates all the methods in the system and tries to
-// invoke them with various basic values (nulls, ints, etc). This may result in
-// Dart exceptions or hangs, but should never result in crashes or JavaScript
-// exceptions.
-
-library test.invoke_natives;
-
-import 'dart:mirrors';
-import 'dart:async';
-import 'dart:io';
-
-// Methods to be skipped, by qualified name.
-var denylist = [
-  // Don't recurse on this test.
-  'test.invoke_natives',
-
-  // Don't exit the test pre-maturely.
-  'dart.io.exit',
-  'dart.isolate.Isolate.exit',
-
-  // Don't change the exit code, which may fool the test harness.
-  'dart.io.exitCode',
-
-  // Don't kill random other processes.
-  'dart.io.Process.killPid',
-
-  // Don't break into the debugger.
-  'dart.developer.debugger',
-
-  // Don't run blocking io calls.
-  'dart.io.sleep',
-  new RegExp(r".*Sync$"),
-
-  // Don't call private methods in dart.async as they may circumvent the zoned
-  // error handling below.
-  new RegExp(r"^dart\.async\._.*$"),
-
-  // Don't try to invoke FFI Natives on simulator.
-  // TODO(http://dartbug.com/48365): Support FFI in simulators.
-  'dart._internal.FinalizerEntry.setExternalSize',
-
-  // Don't instantiate structs with bogus memory.
-  'dart.ffi._AsTypedListFinalizerData',
-
-  // Don't instantiate callables with random function pointers.
-  'dart.ffi._NativeCallableIsolateLocal',
-];
-
-bool isDenylisted(Symbol qualifiedSymbol) {
-  var qualifiedString = MirrorSystem.getName(qualifiedSymbol);
-  for (var pattern in denylist) {
-    if (qualifiedString.contains(pattern)) {
-      print('Skipping $qualifiedString');
-      return true;
-    }
-  }
-  return false;
-}
-
-class Task {
-  dynamic name;
-  dynamic action;
-}
-
-var queue = <Task>[];
-
-checkMethod(MethodMirror m, ObjectMirror target, [origin]) {
-  if (isDenylisted(m.qualifiedName)) return;
-
-  var task = new Task();
-  task.name = '${MirrorSystem.getName(m.qualifiedName)} from $origin';
-
-  if (m.isRegularMethod) {
-    task.action = () => target.invoke(
-        m.simpleName, new List.filled(m.parameters.length, fuzzArgument));
-  } else if (m.isGetter) {
-    task.action = () => target.getField(m.simpleName);
-  } else if (m.isSetter) {
-    task.action = () => target.setField(m.simpleName, null);
-  } else if (m.isConstructor) {
-    return;
-  } else {
-    throw "Unexpected method kind";
-  }
-
-  queue.add(task);
-}
-
-checkInstance(instanceMirror, origin) {
-  ClassMirror klass = instanceMirror.type;
-  while (klass != null) {
-    instanceMirror.type.declarations.values
-        .where((d) => d is MethodMirror && !d.isStatic)
-        .forEach((m) => checkMethod(m, instanceMirror, origin));
-    klass = klass.superclass;
-  }
-}
-
-checkClass(classMirror) {
-  classMirror.declarations.values
-      .where((d) => d is MethodMirror && d.isStatic)
-      .forEach((m) => checkMethod(m, classMirror));
-
-  classMirror.declarations.values
-      .where((d) => d is MethodMirror && d.isConstructor)
-      .forEach((m) {
-    if (isDenylisted(m.qualifiedName)) return;
-    var task = new Task();
-    task.name = MirrorSystem.getName(m.qualifiedName);
-
-    task.action = () {
-      var instance = classMirror.newInstance(m.constructorName,
-          new List.filled(m.parameters.length, fuzzArgument));
-      checkInstance(instance, task.name);
-    };
-    queue.add(task);
-  });
-}
-
-checkLibrary(libraryMirror) {
-  print(libraryMirror.simpleName);
-  if (isDenylisted(libraryMirror.qualifiedName)) return;
-
-  libraryMirror.declarations.values
-      .where((d) => d is ClassMirror)
-      .forEach(checkClass);
-
-  libraryMirror.declarations.values
-      .where((d) => d is MethodMirror)
-      .forEach((m) => checkMethod(m, libraryMirror));
-}
-
-var testZone;
-
-doOneTask() {
-  if (queue.length == 0) {
-    print('Done');
-    // Forcibly exit as we likely opened sockets and timers during the fuzzing.
-    exit(0);
-  }
-
-  var task = queue.removeLast();
-  print(task.name);
-  try {
-    task.action();
-  } catch (e) {}
-
-  // Register the next task in a timer callback so as to yield to async code
-  // scheduled in the current task. This isn't necessary for the test itself,
-  // but is helpful when trying to figure out which function is responsible for
-  // a crash.
-  testZone.createTimer(Duration.zero, doOneTask);
-}
-
-var fuzzArgument;
-
-main() {
-  fuzzArgument = null;
-  fuzzArgument = 1; // //# smi: ok
-  fuzzArgument = false; // //# false: ok
-  fuzzArgument = 'string'; // //# string: ok
-  fuzzArgument = new List.filled(0, null); // //# emptyarray: ok
-
-  print('Fuzzing with $fuzzArgument');
-
-  currentMirrorSystem().libraries.values.forEach(checkLibrary);
-
-  var valueObjects = [
-    true,
-    false,
-    null,
-    [],
-    {},
-    dynamic,
-    0,
-    0xEFFFFFF,
-    0xFFFFFFFF,
-    0xFFFFFFFFFFFFFFFF,
-    3.14159,
-    "foo",
-    'blåbærgrød',
-    'Îñţérñåţîöñåļîžåţîờñ',
-    "\u{1D11E}",
-    #symbol
-  ];
-  valueObjects.forEach((v) => checkInstance(reflect(v), 'value object'));
-
-  void uncaughtErrorHandler(self, parent, zone, error, stack) {}
-
-  var zoneSpec =
-      new ZoneSpecification(handleUncaughtError: uncaughtErrorHandler);
-  testZone = Zone.current.fork(specification: zoneSpec);
-  testZone.createTimer(Duration.zero, doOneTask);
-}
diff --git a/tests/lib_2/mirrors/invocation_mirror_invoke_on2_test.dart b/tests/lib_2/mirrors/invocation_mirror_invoke_on2_test.dart
deleted file mode 100644
index 6bb0365d3de..00000000000
--- a/tests/lib_2/mirrors/invocation_mirror_invoke_on2_test.dart
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:mirrors" show reflect;
-import "package:expect/expect.dart";
-
-class Proxy {
-  final proxied;
-  Proxy(this.proxied);
-  noSuchMethod(mirror) => reflect(proxied).delegate(mirror);
-}
-
-main() {
-  testList();
-  testString();
-  testInt();
-  testDouble();
-}
-
-testList() {
-  dynamic list = [];
-  dynamic proxy = new Proxy(list);
-
-  Expect.isTrue(proxy.isEmpty);
-  Expect.isTrue(list.isEmpty);
-
-  proxy.add(42);
-
-  Expect.isFalse(proxy.isEmpty);
-  Expect.equals(1, proxy.length);
-  Expect.equals(42, proxy[0]);
-
-  Expect.isFalse(list.isEmpty);
-  Expect.equals(1, list.length);
-  Expect.equals(42, list[0]);
-
-  proxy.add(87);
-
-  Expect.equals(2, proxy.length);
-  Expect.equals(87, proxy[1]);
-
-  Expect.equals(2, list.length);
-  Expect.equals(87, list[1]);
-
-  Expect.throwsNoSuchMethodError(() => proxy.funky());
-  Expect.throwsNoSuchMethodError(() => list.funky());
-}
-
-testString() {
-  dynamic string = "funky";
-  dynamic proxy = new Proxy(string);
-
-  Expect.equals(string.codeUnitAt(0), proxy.codeUnitAt(0));
-  Expect.equals(string.length, proxy.length);
-
-  Expect.throwsNoSuchMethodError(() => proxy.funky());
-  Expect.throwsNoSuchMethodError(() => string.funky());
-}
-
-testInt() {
-  dynamic number = 42;
-  dynamic proxy = new Proxy(number);
-
-  Expect.equals(number + 87, proxy + 87);
-  Expect.equals(number.toDouble(), proxy.toDouble());
-
-  Expect.throwsNoSuchMethodError(() => proxy.funky());
-  Expect.throwsNoSuchMethodError(() => number.funky());
-}
-
-testDouble() {
-  dynamic number = 42.99;
-  dynamic proxy = new Proxy(number);
-
-  Expect.equals(number + 87, proxy + 87);
-  Expect.equals(number.toInt(), proxy.toInt());
-
-  Expect.throwsNoSuchMethodError(() => proxy.funky());
-  Expect.throwsNoSuchMethodError(() => number.funky());
-}
diff --git a/tests/lib_2/mirrors/invocation_mirror_invoke_on_test.dart b/tests/lib_2/mirrors/invocation_mirror_invoke_on_test.dart
deleted file mode 100644
index 0e121448b9a..00000000000
--- a/tests/lib_2/mirrors/invocation_mirror_invoke_on_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:mirrors" show reflect;
-import "package:expect/expect.dart";
-
-// Testing InstanceMirror.delegate method; test of issue 7227.
-
-var reachedSetX = 0;
-var reachedGetX = 0;
-var reachedM = 0;
-
-class A {
-  set x(val) {
-    reachedSetX = val;
-  }
-
-  get x {
-    reachedGetX = 1;
-  }
-
-  m() {
-    reachedM = 1;
-  }
-}
-
-class B {
-  final a = new A();
-  noSuchMethod(mirror) => reflect(a).delegate(mirror);
-}
-
-main() {
-  dynamic b = new B();
-  b.x = 10;
-  Expect.equals(10, reachedSetX);
-  b.x;
-  Expect.equals(1, reachedGetX);
-  b.m();
-  Expect.equals(1, reachedM);
-}
diff --git a/tests/lib_2/mirrors/invoke_call_on_closure_test.dart b/tests/lib_2/mirrors/invoke_call_on_closure_test.dart
deleted file mode 100644
index 2d0d595e439..00000000000
--- a/tests/lib_2/mirrors/invoke_call_on_closure_test.dart
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.invoke_call_on_closure;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class FakeFunctionCall {
-  call(x, y) => '1 $x $y';
-}
-
-class FakeFunctionNSM {
-  noSuchMethod(msg) => msg.positionalArguments.join(', ');
-}
-
-class C {
-  get fakeFunctionCall => new FakeFunctionCall();
-  get fakeFunctionNSM => new FakeFunctionNSM();
-  get closure => (x, y) => '2 $this $x $y';
-  get closureOpt => (x, y, [z, w]) => '3 $this $x $y $z $w';
-  get closureNamed => (x, y, {z, w}) => '4 $this $x $y $z $w';
-  tearOff(x, y) => '22 $this $x $y';
-  tearOffOpt(x, y, [z, w]) => '33 $this $x $y $z $w';
-  tearOffNamed(x, y, {z, w}) => '44 $this $x $y $z $w';
-
-  noSuchMethod(msg) => 'DNU';
-
-  toString() => 'C';
-}
-
-main() {
-  var c = new C();
-  InstanceMirror im;
-
-  im = reflect(c.fakeFunctionCall);
-  Expect.equals('1 5 6', im.invoke(#call, [5, 6]).reflectee);
-
-  im = reflect(c.fakeFunctionNSM);
-  Expect.equals('7, 8', im.invoke(#call, [7, 8]).reflectee);
-
-  im = reflect(c.closure);
-  Expect.equals('2 C 9 10', im.invoke(#call, [9, 10]).reflectee);
-
-  im = reflect(c.closureOpt);
-  Expect.equals('3 C 11 12 13 null', im.invoke(#call, [11, 12, 13]).reflectee);
-
-  im = reflect(c.closureNamed);
-  Expect.equals(
-      '4 C 14 15 null 16', im.invoke(#call, [14, 15], {#w: 16}).reflectee);
-
-  im = reflect(c.tearOff);
-  Expect.equals('22 C 9 10', im.invoke(#call, [9, 10]).reflectee);
-
-  im = reflect(c.tearOffOpt);
-  Expect.equals('33 C 11 12 13 null', im.invoke(#call, [11, 12, 13]).reflectee);
-
-  im = reflect(c.tearOffNamed);
-  Expect.equals(
-      '44 C 14 15 null 16', im.invoke(#call, [14, 15], {#w: 16}).reflectee);
-}
diff --git a/tests/lib_2/mirrors/invoke_call_through_getter_previously_accessed_test.dart b/tests/lib_2/mirrors/invoke_call_through_getter_previously_accessed_test.dart
deleted file mode 100644
index 04f8ad4fa05..00000000000
--- a/tests/lib_2/mirrors/invoke_call_through_getter_previously_accessed_test.dart
+++ /dev/null
@@ -1,129 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.invoke_call_through_getter;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class FakeFunctionCall {
-  call(x, y) => '1 $x $y';
-}
-
-class FakeFunctionNSM {
-  noSuchMethod(msg) => msg.positionalArguments.join(', ');
-}
-
-class C {
-  get fakeFunctionCall => new FakeFunctionCall();
-  get fakeFunctionNSM => new FakeFunctionNSM();
-  get closure => (x, y) => '2 $this $x $y';
-  get closureOpt => (x, y, [z, w]) => '3 $this $x $y $z $w';
-  get closureNamed => (x, y, {z, w}) => '4 $this $x $y $z $w';
-  get notAClosure => 'Not a closure';
-  noSuchMethod(msg) => 'DNU';
-
-  toString() => 'C';
-}
-
-testInstanceBase() {
-  dynamic c = new C();
-
-  Expect.equals('1 5 6', c.fakeFunctionCall(5, 6));
-  Expect.equals('7, 8', c.fakeFunctionNSM(7, 8));
-  Expect.equals('2 C 9 10', c.closure(9, 10));
-  Expect.equals('3 C 11 12 13 null', c.closureOpt(11, 12, 13));
-  Expect.equals('4 C 14 15 null 16', c.closureNamed(14, 15, w: 16));
-  Expect.equals('DNU', c.doesNotExist(17, 18));
-  Expect.throwsNoSuchMethodError(() => c.closure('wrong arity'));
-  Expect.throwsNoSuchMethodError(() => c.notAClosure());
-}
-
-testInstanceReflective() {
-  InstanceMirror im = reflect(new C());
-
-  Expect.equals('1 5 6', im.invoke(#fakeFunctionCall, [5, 6]).reflectee);
-  Expect.equals('7, 8', im.invoke(#fakeFunctionNSM, [7, 8]).reflectee);
-  Expect.equals('2 C 9 10', im.invoke(#closure, [9, 10]).reflectee);
-  Expect.equals(
-      '3 C 11 12 13 null', im.invoke(#closureOpt, [11, 12, 13]).reflectee);
-  Expect.equals('4 C 14 15 null 16', //                                       //# named: ok
-                im.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee); //   //# named: continued
-  Expect.equals('DNU', im.invoke(#doesNotExist, [17, 18]).reflectee);
-  Expect.throwsNoSuchMethodError(() => im.invoke(#closure, ['wrong arity']));
-  Expect.throwsNoSuchMethodError(() => im.invoke(#notAClosure, []));
-}
-
-class D {
-  static get fakeFunctionCall => new FakeFunctionCall();
-  static get fakeFunctionNSM => new FakeFunctionNSM();
-  static get closure => (x, y) => '2 $x $y';
-  static get closureOpt => (x, y, [z, w]) => '3 $x $y $z $w';
-  static get closureNamed => (x, y, {z, w}) => '4 $x $y $z $w';
-  static get notAClosure => 'Not a closure';
-}
-
-testClassBase() {
-  Expect.equals('1 5 6', D.fakeFunctionCall(5, 6));
-  Expect.equals('7, 8', D.fakeFunctionNSM(7, 8));
-  Expect.equals('2 9 10', D.closure(9, 10));
-  Expect.equals('3 11 12 13 null', D.closureOpt(11, 12, 13));
-  Expect.equals('4 14 15 null 16', D.closureNamed(14, 15, w: 16));
-  Expect.throwsNoSuchMethodError(() => D.closure('wrong arity'));
-}
-
-testClassReflective() {
-  ClassMirror cm = reflectClass(D);
-
-  Expect.equals('1 5 6', cm.invoke(#fakeFunctionCall, [5, 6]).reflectee);
-  Expect.equals('7, 8', cm.invoke(#fakeFunctionNSM, [7, 8]).reflectee);
-  Expect.equals('2 9 10', cm.invoke(#closure, [9, 10]).reflectee);
-  Expect.equals(
-      '3 11 12 13 null', cm.invoke(#closureOpt, [11, 12, 13]).reflectee);
-  Expect.equals('4 14 15 null 16', //                                        //# named: continued
-                cm.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee); //  //# named: continued
-  Expect.throwsNoSuchMethodError(() => cm.invoke(#closure, ['wrong arity']));
-}
-
-get fakeFunctionCall => new FakeFunctionCall();
-get fakeFunctionNSM => new FakeFunctionNSM();
-get closure => (x, y) => '2 $x $y';
-get closureOpt => (x, y, [z, w]) => '3 $x $y $z $w';
-get closureNamed => (x, y, {z, w}) => '4 $x $y $z $w';
-get notAClosure => 'Not a closure';
-
-testLibraryBase() {
-  Expect.equals('1 5 6', fakeFunctionCall(5, 6));
-  Expect.equals('7, 8', fakeFunctionNSM(7, 8));
-  Expect.equals('2 9 10', closure(9, 10));
-  Expect.equals('3 11 12 13 null', closureOpt(11, 12, 13));
-  Expect.equals('4 14 15 null 16', closureNamed(14, 15, w: 16));
-  Expect.throwsNoSuchMethodError(() => closure('wrong arity'));
-}
-
-testLibraryReflective() {
-  LibraryMirror lm = reflectClass(D).owner as LibraryMirror;
-
-  Expect.equals('1 5 6', lm.invoke(#fakeFunctionCall, [5, 6]).reflectee);
-  Expect.equals('7, 8', lm.invoke(#fakeFunctionNSM, [7, 8]).reflectee);
-  Expect.equals('2 9 10', lm.invoke(#closure, [9, 10]).reflectee);
-  Expect.equals(
-      '3 11 12 13 null', lm.invoke(#closureOpt, [11, 12, 13]).reflectee);
-  Expect.equals('4 14 15 null 16', //                                       //# named: continued
-                lm.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee); // //# named: continued
-  Expect.throwsNoSuchMethodError(() => lm.invoke(#closure, ['wrong arity']));
-}
-
-main() {
-  // Access the getters/closures at the base level in this variant.
-  testInstanceBase();
-  testInstanceReflective();
-  testClassBase();
-  testClassReflective();
-  testLibraryBase();
-  testLibraryReflective();
-}
diff --git a/tests/lib_2/mirrors/invoke_call_through_getter_test.dart b/tests/lib_2/mirrors/invoke_call_through_getter_test.dart
deleted file mode 100644
index 993f43a4fb9..00000000000
--- a/tests/lib_2/mirrors/invoke_call_through_getter_test.dart
+++ /dev/null
@@ -1,129 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.invoke_call_through_getter;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class FakeFunctionCall {
-  call(x, y) => '1 $x $y';
-}
-
-class FakeFunctionNSM {
-  noSuchMethod(msg) => msg.positionalArguments.join(', ');
-}
-
-class C {
-  get fakeFunctionCall => new FakeFunctionCall();
-  get fakeFunctionNSM => new FakeFunctionNSM();
-  get closure => (x, y) => '2 $this $x $y';
-  get closureOpt => (x, y, [z, w]) => '3 $this $x $y $z $w';
-  get closureNamed => (x, y, {z, w}) => '4 $this $x $y $z $w';
-  get notAClosure => 'Not a closure';
-  noSuchMethod(msg) => 'DNU';
-
-  toString() => 'C';
-}
-
-testInstanceBase() {
-  dynamic c = new C();
-
-  Expect.equals('1 5 6', c.fakeFunctionCall(5, 6));
-  Expect.equals('7, 8', c.fakeFunctionNSM(7, 8));
-  Expect.equals('2 C 9 10', c.closure(9, 10));
-  Expect.equals('3 C 11 12 13 null', c.closureOpt(11, 12, 13));
-  Expect.equals('4 C 14 15 null 16', c.closureNamed(14, 15, w: 16));
-  Expect.equals('DNU', c.doesNotExist(17, 18));
-  Expect.throwsNoSuchMethodError(() => c.closure('wrong arity'));
-  Expect.throwsNoSuchMethodError(() => c.notAClosure());
-}
-
-testInstanceReflective() {
-  InstanceMirror im = reflect(new C());
-
-  Expect.equals('1 5 6', im.invoke(#fakeFunctionCall, [5, 6]).reflectee);
-  Expect.equals('7, 8', im.invoke(#fakeFunctionNSM, [7, 8]).reflectee);
-  Expect.equals('2 C 9 10', im.invoke(#closure, [9, 10]).reflectee);
-  Expect.equals(
-      '3 C 11 12 13 null', im.invoke(#closureOpt, [11, 12, 13]).reflectee);
-  Expect.equals('4 C 14 15 null 16', //                                       //# named: ok
-                im.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee); //   //# named: continued
-  Expect.equals('DNU', im.invoke(#doesNotExist, [17, 18]).reflectee);
-  Expect.throwsNoSuchMethodError(() => im.invoke(#closure, ['wrong arity']));
-  Expect.throwsNoSuchMethodError(() => im.invoke(#notAClosure, []));
-}
-
-class D {
-  static get fakeFunctionCall => new FakeFunctionCall();
-  static get fakeFunctionNSM => new FakeFunctionNSM();
-  static get closure => (x, y) => '2 $x $y';
-  static get closureOpt => (x, y, [z, w]) => '3 $x $y $z $w';
-  static get closureNamed => (x, y, {z, w}) => '4 $x $y $z $w';
-  static get notAClosure => 'Not a closure';
-}
-
-testClassBase() {
-  Expect.equals('1 5 6', D.fakeFunctionCall(5, 6));
-  Expect.equals('7, 8', D.fakeFunctionNSM(7, 8));
-  Expect.equals('2 9 10', D.closure(9, 10));
-  Expect.equals('3 11 12 13 null', D.closureOpt(11, 12, 13));
-  Expect.equals('4 14 15 null 16', D.closureNamed(14, 15, w: 16));
-  Expect.throwsNoSuchMethodError(() => D.closure('wrong arity'));
-}
-
-testClassReflective() {
-  ClassMirror cm = reflectClass(D);
-
-  Expect.equals('1 5 6', cm.invoke(#fakeFunctionCall, [5, 6]).reflectee);
-  Expect.equals('7, 8', cm.invoke(#fakeFunctionNSM, [7, 8]).reflectee);
-  Expect.equals('2 9 10', cm.invoke(#closure, [9, 10]).reflectee);
-  Expect.equals(
-      '3 11 12 13 null', cm.invoke(#closureOpt, [11, 12, 13]).reflectee);
-  Expect.equals('4 14 15 null 16', //                                        //# named: continued
-                cm.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee); //  //# named: continued
-  Expect.throwsNoSuchMethodError(() => cm.invoke(#closure, ['wrong arity']));
-}
-
-get fakeFunctionCall => new FakeFunctionCall();
-get fakeFunctionNSM => new FakeFunctionNSM();
-get closure => (x, y) => '2 $x $y';
-get closureOpt => (x, y, [z, w]) => '3 $x $y $z $w';
-get closureNamed => (x, y, {z, w}) => '4 $x $y $z $w';
-get notAClosure => 'Not a closure';
-
-testLibraryBase() {
-  Expect.equals('1 5 6', fakeFunctionCall(5, 6));
-  Expect.equals('7, 8', fakeFunctionNSM(7, 8));
-  Expect.equals('2 9 10', closure(9, 10));
-  Expect.equals('3 11 12 13 null', closureOpt(11, 12, 13));
-  Expect.equals('4 14 15 null 16', closureNamed(14, 15, w: 16));
-  Expect.throwsNoSuchMethodError(() => closure('wrong arity'));
-}
-
-testLibraryReflective() {
-  LibraryMirror lm = reflectClass(D).owner as LibraryMirror;
-
-  Expect.equals('1 5 6', lm.invoke(#fakeFunctionCall, [5, 6]).reflectee);
-  Expect.equals('7, 8', lm.invoke(#fakeFunctionNSM, [7, 8]).reflectee);
-  Expect.equals('2 9 10', lm.invoke(#closure, [9, 10]).reflectee);
-  Expect.equals(
-      '3 11 12 13 null', lm.invoke(#closureOpt, [11, 12, 13]).reflectee);
-  Expect.equals('4 14 15 null 16', //                                       //# named: continued
-                lm.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee); // //# named: continued
-  Expect.throwsNoSuchMethodError(() => lm.invoke(#closure, ['wrong arity']));
-}
-
-main() {
-  // Do not access the getters/closures at the base level in this variant.
-  //testInstanceBase();
-  testInstanceReflective();
-  //testClassBase();
-  testClassReflective();
-  //testLibraryBase();
-  testLibraryReflective();
-}
diff --git a/tests/lib_2/mirrors/invoke_call_through_implicit_getter_previously_accessed_test.dart b/tests/lib_2/mirrors/invoke_call_through_implicit_getter_previously_accessed_test.dart
deleted file mode 100644
index 63e95bd374a..00000000000
--- a/tests/lib_2/mirrors/invoke_call_through_implicit_getter_previously_accessed_test.dart
+++ /dev/null
@@ -1,132 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.invoke_call_through_implicit_getter;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class FakeFunctionCall {
-  call(x, y) => '1 $x $y';
-}
-
-class FakeFunctionNSM {
-  noSuchMethod(msg) => msg.positionalArguments.join(', ');
-}
-
-class C {
-  var fakeFunctionCall = new FakeFunctionCall();
-  var fakeFunctionNSM = new FakeFunctionNSM();
-  var closure; // = (x, y) => '2 $this $x $y';
-  var closureOpt; // = (x, y, [z, w]) => '3 $this $x $y $z $w';
-  var closureNamed; // = (x, y, {z, w}) => '4 $this $x $y $z $w';
-  var notAClosure = 'Not a closure';
-  noSuchMethod(msg) => 'DNU';
-
-  C() {
-    closure = (x, y) => '2 $this $x $y';
-    closureOpt = (x, y, [z, w]) => '3 $this $x $y $z $w';
-    closureNamed = (x, y, {z, w}) => '4 $this $x $y $z $w';
-  }
-
-  toString() => 'C';
-}
-
-testInstanceBase() {
-  dynamic c = new C();
-
-  Expect.equals('1 5 6', c.fakeFunctionCall(5, 6));
-  Expect.equals('7, 8', c.fakeFunctionNSM(7, 8));
-  Expect.equals('2 C 9 10', c.closure(9, 10));
-  Expect.equals('3 C 11 12 13 null', c.closureOpt(11, 12, 13));
-  Expect.equals('4 C 14 15 null 16', c.closureNamed(14, 15, w: 16));
-  Expect.equals('DNU', c.doesNotExist(17, 18));
-  Expect.throwsNoSuchMethodError(() => c.closure('wrong arity'));
-  Expect.throwsNoSuchMethodError(() => c.notAClosure());
-}
-
-testInstanceReflective() {
-  InstanceMirror im = reflect(new C());
-
-  Expect.equals('1 5 6', im.invoke(#fakeFunctionCall, [5, 6]).reflectee);
-  Expect.equals('7, 8', im.invoke(#fakeFunctionNSM, [7, 8]).reflectee);
-  Expect.equals('2 C 9 10', im.invoke(#closure, [9, 10]).reflectee);
-  Expect.equals(
-      '3 C 11 12 13 null', im.invoke(#closureOpt, [11, 12, 13]).reflectee);
-  Expect.equals('4 C 14 15 null 16', //                                       //# named: ok
-                im.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee); //   //# named: continued
-  Expect.equals('DNU', im.invoke(#doesNotExist, [17, 18]).reflectee);
-  Expect.throwsNoSuchMethodError(() => im.invoke(#closure, ['wrong arity']));
-  Expect.throwsNoSuchMethodError(() => im.invoke(#notAClosure, []));
-}
-
-class D {
-  static dynamic fakeFunctionCall = new FakeFunctionCall();
-  static dynamic fakeFunctionNSM = new FakeFunctionNSM();
-  static var closure = (x, y) => '2 $x $y';
-  static var closureOpt = (x, y, [z, w]) => '3 $x $y $z $w';
-  static var closureNamed = (x, y, {z, w}) => '4 $x $y $z $w';
-  static var notAClosure = 'Not a closure';
-}
-
-testClassBase() {
-  Expect.equals('1 5 6', D.fakeFunctionCall(5, 6));
-  Expect.equals('7, 8', D.fakeFunctionNSM(7, 8));
-  Expect.equals('2 9 10', D.closure(9, 10));
-  Expect.equals('3 11 12 13 null', D.closureOpt(11, 12, 13));
-  Expect.equals('4 14 15 null 16', D.closureNamed(14, 15, w: 16));
-}
-
-testClassReflective() {
-  ClassMirror cm = reflectClass(D);
-
-  Expect.equals('1 5 6', cm.invoke(#fakeFunctionCall, [5, 6]).reflectee);
-  Expect.equals('7, 8', cm.invoke(#fakeFunctionNSM, [7, 8]).reflectee);
-  Expect.equals('2 9 10', cm.invoke(#closure, [9, 10]).reflectee);
-  Expect.equals(
-      '3 11 12 13 null', cm.invoke(#closureOpt, [11, 12, 13]).reflectee);
-  Expect.equals('4 14 15 null 16', //                                        //# named: continued
-                cm.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee); //  //# named: continued
-  Expect.throwsNoSuchMethodError(() => cm.invoke(#closure, ['wrong arity']));
-}
-
-var fakeFunctionCall = new FakeFunctionCall();
-dynamic fakeFunctionNSM = new FakeFunctionNSM();
-var closure = (x, y) => '2 $x $y';
-var closureOpt = (x, y, [z, w]) => '3 $x $y $z $w';
-var closureNamed = (x, y, {z, w}) => '4 $x $y $z $w';
-var notAClosure = 'Not a closure';
-
-testLibraryBase() {
-  Expect.equals('1 5 6', fakeFunctionCall(5, 6));
-  Expect.equals('7, 8', fakeFunctionNSM(7, 8));
-  Expect.equals('2 9 10', closure(9, 10));
-  Expect.equals('3 11 12 13 null', closureOpt(11, 12, 13));
-  Expect.equals('4 14 15 null 16', closureNamed(14, 15, w: 16));
-}
-
-testLibraryReflective() {
-  LibraryMirror lm = reflectClass(D).owner as LibraryMirror;
-
-  Expect.equals('1 5 6', lm.invoke(#fakeFunctionCall, [5, 6]).reflectee);
-  Expect.equals('7, 8', lm.invoke(#fakeFunctionNSM, [7, 8]).reflectee);
-  Expect.equals('2 9 10', lm.invoke(#closure, [9, 10]).reflectee);
-  Expect.equals(
-      '3 11 12 13 null', lm.invoke(#closureOpt, [11, 12, 13]).reflectee);
-  Expect.equals('4 14 15 null 16', //                                       //# named: continued
-                lm.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee); // //# named: continued
-  Expect.throwsNoSuchMethodError(() => lm.invoke(#closure, ['wrong arity']));
-}
-
-main() {
-  testInstanceBase();
-  testInstanceReflective();
-  testClassBase();
-  testClassReflective();
-  testLibraryBase();
-  testLibraryReflective();
-}
diff --git a/tests/lib_2/mirrors/invoke_call_through_implicit_getter_test.dart b/tests/lib_2/mirrors/invoke_call_through_implicit_getter_test.dart
deleted file mode 100644
index 1e9baeb3cb4..00000000000
--- a/tests/lib_2/mirrors/invoke_call_through_implicit_getter_test.dart
+++ /dev/null
@@ -1,132 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.invoke_call_through_implicit_getter;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class FakeFunctionCall {
-  call(x, y) => '1 $x $y';
-}
-
-class FakeFunctionNSM {
-  noSuchMethod(msg) => msg.positionalArguments.join(', ');
-}
-
-class C {
-  dynamic fakeFunctionCall = new FakeFunctionCall();
-  dynamic fakeFunctionNSM = new FakeFunctionNSM();
-  var closure; // = (x, y) => '2 $this $x $y';
-  var closureOpt; // = (x, y, [z, w]) => '3 $this $x $y $z $w';
-  var closureNamed; // = (x, y, {z, w}) => '4 $this $x $y $z $w';
-  dynamic notAClosure = 'Not a closure';
-  noSuchMethod(msg) => 'DNU';
-
-  C() {
-    closure = (x, y) => '2 $this $x $y';
-    closureOpt = (x, y, [z, w]) => '3 $this $x $y $z $w';
-    closureNamed = (x, y, {z, w}) => '4 $this $x $y $z $w';
-  }
-
-  toString() => 'C';
-}
-
-testInstanceBase() {
-  dynamic c = new C();
-
-  Expect.equals('1 5 6', c.fakeFunctionCall(5, 6));
-  Expect.equals('7, 8', c.fakeFunctionNSM(7, 8));
-  Expect.equals('2 C 9 10', c.closure(9, 10));
-  Expect.equals('3 C 11 12 13 null', c.closureOpt(11, 12, 13));
-  Expect.equals('4 C 14 15 null 16', c.closureNamed(14, 15, w: 16));
-  Expect.equals('DNU', c.doesNotExist(17, 18));
-  Expect.throwsNoSuchMethodError(() => c.notAClosure());
-}
-
-testInstanceReflective() {
-  InstanceMirror im = reflect(new C());
-
-  Expect.equals('1 5 6', im.invoke(#fakeFunctionCall, [5, 6]).reflectee);
-  Expect.equals('7, 8', im.invoke(#fakeFunctionNSM, [7, 8]).reflectee);
-  Expect.equals('2 C 9 10', im.invoke(#closure, [9, 10]).reflectee);
-  Expect.equals(
-      '3 C 11 12 13 null', im.invoke(#closureOpt, [11, 12, 13]).reflectee);
-  Expect.equals('4 C 14 15 null 16',
-      im.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee);
-  Expect.equals('DNU', im.invoke(#doesNotExist, [17, 18]).reflectee);
-  Expect.throwsNoSuchMethodError(() => im.invoke(#closure, ['wrong arity']));
-  Expect.throwsNoSuchMethodError(() => im.invoke(#notAClosure, []));
-}
-
-class D {
-  static dynamic fakeFunctionCall = new FakeFunctionCall();
-  static dynamic fakeFunctionNSM = new FakeFunctionNSM();
-  static var closure = (x, y) => '2 $x $y';
-  static var closureOpt = (x, y, [z, w]) => '3 $x $y $z $w';
-  static var closureNamed = (x, y, {z, w}) => '4 $x $y $z $w';
-  static var notAClosure = 'Not a closure';
-}
-
-testClassBase() {
-  Expect.equals('1 5 6', D.fakeFunctionCall(5, 6));
-  Expect.equals('7, 8', D.fakeFunctionNSM(7, 8));
-  Expect.equals('2 9 10', D.closure(9, 10));
-  Expect.equals('3 11 12 13 null', D.closureOpt(11, 12, 13));
-  Expect.equals('4 14 15 null 16', D.closureNamed(14, 15, w: 16));
-}
-
-testClassReflective() {
-  ClassMirror cm = reflectClass(D);
-
-  Expect.equals('1 5 6', cm.invoke(#fakeFunctionCall, [5, 6]).reflectee);
-  Expect.equals('7, 8', cm.invoke(#fakeFunctionNSM, [7, 8]).reflectee);
-  Expect.equals('2 9 10', cm.invoke(#closure, [9, 10]).reflectee);
-  Expect.equals(
-      '3 11 12 13 null', cm.invoke(#closureOpt, [11, 12, 13]).reflectee);
-  Expect.equals('4 14 15 null 16',
-      cm.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee);
-  Expect.throwsNoSuchMethodError(() => cm.invoke(#closure, ['wrong arity']));
-}
-
-var fakeFunctionCall = new FakeFunctionCall();
-dynamic fakeFunctionNSM = new FakeFunctionNSM();
-var closure = (x, y) => '2 $x $y';
-var closureOpt = (x, y, [z, w]) => '3 $x $y $z $w';
-var closureNamed = (x, y, {z, w}) => '4 $x $y $z $w';
-var notAClosure = 'Not a closure';
-
-testLibraryBase() {
-  Expect.equals('1 5 6', fakeFunctionCall(5, 6));
-  Expect.equals('7, 8', fakeFunctionNSM(7, 8));
-  Expect.equals('2 9 10', closure(9, 10));
-  Expect.equals('3 11 12 13 null', closureOpt(11, 12, 13));
-  Expect.equals('4 14 15 null 16', closureNamed(14, 15, w: 16));
-}
-
-testLibraryReflective() {
-  LibraryMirror lm = reflectClass(D).owner as LibraryMirror;
-
-  Expect.equals('1 5 6', lm.invoke(#fakeFunctionCall, [5, 6]).reflectee);
-  Expect.equals('7, 8', lm.invoke(#fakeFunctionNSM, [7, 8]).reflectee);
-  Expect.equals('2 9 10', lm.invoke(#closure, [9, 10]).reflectee);
-  Expect.equals(
-      '3 11 12 13 null', lm.invoke(#closureOpt, [11, 12, 13]).reflectee);
-  Expect.equals('4 14 15 null 16',
-      lm.invoke(#closureNamed, [14, 15], {#w: 16}).reflectee);
-  Expect.throwsNoSuchMethodError(() => lm.invoke(#closure, ['wrong arity']));
-}
-
-main() {
-  // Do not access the getters/closures at the base level in this variant.
-  //testInstanceBase();
-  testInstanceReflective();
-  //testClassBase();
-  testClassReflective();
-  //testLibraryBase();
-  testLibraryReflective();
-}
diff --git a/tests/lib_2/mirrors/invoke_closurization2_test.dart b/tests/lib_2/mirrors/invoke_closurization2_test.dart
deleted file mode 100644
index 88f4656c111..00000000000
--- a/tests/lib_2/mirrors/invoke_closurization2_test.dart
+++ /dev/null
@@ -1,137 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.invoke_closurization_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class A {
-  foo() => "foo";
-  bar([x]) => "bar-$x";
-  gee({named}) => "gee-$named";
-
-  // Methods that must be intercepted.
-
-  // Tear-offs we will also get without mirrors.
-  codeUnitAt(x) => "codeUnitAt-$x";
-  toUpperCase() => "toUpperCase";
-  // indexOf takes an optional argument in String.
-  indexOf(x) => "indexOf-$x";
-  // lastIndexOf matches signature from String.
-  lastIndexOf(x, [y]) => "lastIndexOf-$x,$y";
-  // splitMapJoin matches signature from String.
-  splitMapJoin(x, {onMatch, onNonMatch}) =>
-      "splitMapJoin-$x,$onMatch,$onNonMatch";
-  // Same name as intercepted, but with named argument.
-  trim({named}) => "trim-$named";
-
-  // Tear-offs we will not call directly.
-  endsWith(x) => "endsWith-$x";
-  toLowerCase() => "toLowerCase";
-  // matchAsPrefix matches signature from String.
-  matchAsPrefix(x, [y = 0]) => "matchAsPrefix-$x,$y";
-  // Matches signature from List
-  toList({growable: true}) => "toList-$growable";
-  // Same name as intercepted, but with named argument.
-  toSet({named}) => "toSet-$named";
-}
-
-// The recursive call makes inlining difficult.
-// The use of DateTime.now makes the result unpredictable.
-confuse(x) {
-  if (new DateTime.now().millisecondsSinceEpoch == 42) {
-    return confuse(new DateTime.now().millisecondsSinceEpoch);
-  }
-  return x;
-}
-
-main() {
-  var list = ["foo", [], new A()];
-
-  getAMirror() => reflect(list[confuse(2)]);
-
-  // Tear-off without mirrors.
-  var f = confuse(getAMirror().reflectee.codeUnitAt);
-  Expect.equals("codeUnitAt-42", f(42));
-  f = confuse(getAMirror().reflectee.toUpperCase);
-  Expect.equals("toUpperCase", f());
-  f = confuse(getAMirror().reflectee.indexOf);
-  Expect.equals("indexOf-499", f(499));
-  f = confuse(getAMirror().reflectee.lastIndexOf);
-  Expect.equals("lastIndexOf-FOO,BAR", f("FOO", "BAR"));
-  f = confuse(getAMirror().reflectee.splitMapJoin);
-  Expect.equals("splitMapJoin-1,2,3", f(1, onMatch: 2, onNonMatch: 3));
-  f = confuse(getAMirror().reflectee.trim);
-  Expect.equals("trim-true", f(named: true));
-
-  // Now the same thing through mirrors.
-  f = getAMirror().getField(#codeUnitAt).reflectee;
-  Expect.equals("codeUnitAt-42", f(42));
-  f = getAMirror().getField(#toUpperCase).reflectee;
-  Expect.equals("toUpperCase", f());
-  f = getAMirror().getField(#indexOf).reflectee;
-  Expect.equals("indexOf-499", f(499));
-  f = getAMirror().getField(#lastIndexOf).reflectee;
-  Expect.equals("lastIndexOf-FOO,BAR", f("FOO", "BAR"));
-  f = getAMirror().getField(#splitMapJoin).reflectee;
-  Expect.equals("splitMapJoin-1,2,3", f(1, onMatch: 2, onNonMatch: 3));
-  f = getAMirror().getField(#trim).reflectee;
-  Expect.equals("trim-true", f(named: true));
-
-  // Now the same thing through mirrors and mirror-invocation.
-  f = getAMirror().getField(#codeUnitAt);
-  Expect.equals(
-      "codeUnitAt-42", f.invoke(#call, [42], <Symbol, dynamic>{}).reflectee);
-  f = getAMirror().getField(#toUpperCase);
-  Expect.equals(
-      "toUpperCase", f.invoke(#call, [], <Symbol, dynamic>{}).reflectee);
-  f = getAMirror().getField(#indexOf);
-  Expect.equals(
-      "indexOf-499", f.invoke(#call, [499], <Symbol, dynamic>{}).reflectee);
-  f = getAMirror().getField(#lastIndexOf);
-  Expect.equals(
-      "lastIndexOf-FOO,BAR", f.invoke(#call, ["FOO", "BAR"]).reflectee);
-  f = getAMirror().getField(#splitMapJoin);
-  Expect.equals("splitMapJoin-1,2,3",
-      f.invoke(#call, [1], {#onMatch: 2, #onNonMatch: 3}).reflectee);
-  f = getAMirror().getField(#trim);
-  Expect.equals("trim-true", f.invoke(#call, [], {#named: true}).reflectee);
-
-  // Tear-offs only through mirrors. (No direct selector in the code).
-  // --------
-
-  f = getAMirror().getField(#endsWith).reflectee;
-  Expect.equals("endsWith-42", f(42));
-  f = getAMirror().getField(#toLowerCase).reflectee;
-  Expect.equals("toLowerCase", f());
-  f = getAMirror().getField(#indexOf).reflectee;
-  Expect.equals("indexOf-499", f(499));
-  f = getAMirror().getField(#matchAsPrefix).reflectee;
-  Expect.equals("matchAsPrefix-FOO,BAR", f("FOO", "BAR"));
-  f = getAMirror().getField(#toList).reflectee;
-  Expect.equals("toList-1", f(growable: 1));
-  f = getAMirror().getField(#toSet).reflectee;
-  Expect.equals("toSet-true", f(named: true));
-
-  f = getAMirror().getField(#endsWith);
-  Expect.equals(
-      "endsWith-42", f.invoke(#call, [42], <Symbol, dynamic>{}).reflectee);
-  f = getAMirror().getField(#toLowerCase);
-  Expect.equals(
-      "toLowerCase", f.invoke(#call, [], <Symbol, dynamic>{}).reflectee);
-  f = getAMirror().getField(#indexOf);
-  Expect.equals(
-      "indexOf-499", f.invoke(#call, [499], <Symbol, dynamic>{}).reflectee);
-  f = getAMirror().getField(#matchAsPrefix);
-  Expect.equals(
-      "matchAsPrefix-FOO,BAR", f.invoke(#call, ["FOO", "BAR"]).reflectee);
-  f = getAMirror().getField(#toList);
-  Expect.equals("toList-1", f.invoke(#call, [], {#growable: 1}).reflectee);
-  f = getAMirror().getField(#toSet);
-  Expect.equals("toSet-true", f.invoke(#call, [], {#named: true}).reflectee);
-}
diff --git a/tests/lib_2/mirrors/invoke_closurization_test.dart b/tests/lib_2/mirrors/invoke_closurization_test.dart
deleted file mode 100644
index 02bf8e0c8d0..00000000000
--- a/tests/lib_2/mirrors/invoke_closurization_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.invoke_closurization_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class C {
-  instanceMethod(x, y, z) => '$x+$y+$z';
-  static staticFunction(x, y, z) => '$x-$y-$z';
-}
-
-libraryFunction(x, y, z) => '$x:$y:$z';
-
-testSync() {
-  var result;
-
-  C c = new C();
-  InstanceMirror im = reflect(c);
-  result = im.getField(#instanceMethod);
-  Expect.isTrue(result.reflectee is Function, "Should be closure");
-  Expect.equals("A+B+C", result.reflectee('A', 'B', 'C'));
-
-  ClassMirror cm = reflectClass(C);
-  result = cm.getField(#staticFunction);
-  Expect.isTrue(result.reflectee is Function, "Should be closure");
-  Expect.equals("A-B-C", result.reflectee('A', 'B', 'C'));
-
-  LibraryMirror lm = cm.owner as LibraryMirror;
-  result = lm.getField(#libraryFunction);
-  Expect.isTrue(result.reflectee is Function, "Should be closure");
-  Expect.equals("A:B:C", result.reflectee('A', 'B', 'C'));
-}
-
-main() {
-  testSync();
-}
diff --git a/tests/lib_2/mirrors/invoke_import_test.dart b/tests/lib_2/mirrors/invoke_import_test.dart
deleted file mode 100644
index 616e78f5afd..00000000000
--- a/tests/lib_2/mirrors/invoke_import_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.invoke_import_test;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-import 'other_library.dart';
-
-main() {
-  LibraryMirror thisLibrary =
-      currentMirrorSystem().findLibrary(#test.invoke_import_test);
-
-  Expect.throwsNoSuchMethodError(
-      () => thisLibrary.invoke(#topLevelMethod, []),
-      'Should not invoke imported method #topLevelMethod');
-
-  Expect.throwsNoSuchMethodError(
-      () => thisLibrary.getField(#topLevelGetter),
-      'Should not invoke imported getter #topLevelGetter');
-
-  Expect.throwsNoSuchMethodError(
-      () => thisLibrary.getField(#topLevelField),
-      'Should not invoke imported field #topLevelField');
-
-  Expect.throwsNoSuchMethodError(
-      () => thisLibrary.setField(#topLevelSetter, 23),
-      'Should not invoke imported setter #topLevelSetter');
-
-  Expect.throwsNoSuchMethodError(
-      () => thisLibrary.setField(#topLevelField, 23),
-      'Should not invoke imported field #topLevelField');
-}
diff --git a/tests/lib_2/mirrors/invoke_named_test.dart b/tests/lib_2/mirrors/invoke_named_test.dart
deleted file mode 100644
index 3592b12bdc9..00000000000
--- a/tests/lib_2/mirrors/invoke_named_test.dart
+++ /dev/null
@@ -1,290 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.invoke_named_test;
-
-import 'dart:mirrors';
-
-import 'dart:async' show Future;
-
-import 'package:expect/expect.dart';
-import 'invoke_test.dart';
-
-// TODO(ahe): Remove this variable (http://dartbug.com/12863).
-bool isDart2js = false;
-
-class C {
-  a(a, {b: 'B', c}) => "$a-$b-$c";
-  b({a: 'A', b, c}) => "$a-$b-$c";
-  c(a, [b, c = 'C']) => "$a-$b-$c";
-  d([a, b = 'B', c = 'C']) => "$a-$b-$c";
-  e(a, b, c) => "$a-$b-$c";
-}
-
-class D {
-  static a(a, {b: 'B', c}) => "$a-$b-$c";
-  static b({a: 'A', b, c}) => "$a-$b-$c";
-  static c(a, [b, c = 'C']) => "$a-$b-$c";
-  static d([a, b = 'B', c = 'C']) => "$a-$b-$c";
-  static e(a, b, c) => "$a-$b-$c";
-}
-
-class E {
-  var field;
-  E(a, {b: 'B', c}) : this.field = "$a-$b-$c";
-  E.b({a: 'A', b, c}) : this.field = "$a-$b-$c";
-  E.c(a, [b, c = 'C']) : this.field = "$a-$b-$c";
-  E.d([a, b = 'B', c = 'C']) : this.field = "$a-$b-$c";
-  E.e(a, b, c) : this.field = "$a-$b-$c";
-}
-
-a(a, {b: 'B', c}) => "$a-$b-$c";
-b({a: 'A', b, c}) => "$a-$b-$c";
-c(a, [b, c = 'C']) => "$a-$b-$c";
-d([a, b = 'B', c = 'C']) => "$a-$b-$c";
-e(a, b, c) => "$a-$b-$c";
-
-testSyncInvoke(ObjectMirror om) {
-  InstanceMirror result;
-
-  result = om.invoke(const Symbol('a'), ['X']);
-  Expect.equals('X-B-null', result.reflectee);
-  result = om.invoke(const Symbol('a'), ['X'], {const Symbol('b'): 'Y'});
-  Expect.equals('X-Y-null', result.reflectee);
-  result = om.invoke(const Symbol('a'), ['X'],
-      {const Symbol('c'): 'Z', const Symbol('b'): 'Y'});
-  Expect.equals('X-Y-Z', result.reflectee);
-  Expect.throwsNoSuchMethodError(() => om.invoke(const Symbol('a'), []),
-      'Insufficient positional arguments');
-  Expect.throwsNoSuchMethodError(() => om.invoke(const Symbol('a'), ['X', 'Y']),
-      'Extra positional arguments');
-  Expect.throwsNoSuchMethodError(
-      () => om.invoke(const Symbol('a'), ['X'], {const Symbol('undef'): 'Y'}),
-      'Unmatched named argument');
-
-  result = om.invoke(const Symbol('b'), []);
-  Expect.equals('A-null-null', result.reflectee);
-  result = om.invoke(const Symbol('b'), [], {const Symbol('a'): 'X'});
-  Expect.equals('X-null-null', result.reflectee);
-  result = om.invoke(const Symbol('b'), [],
-      {const Symbol('b'): 'Y', const Symbol('c'): 'Z', const Symbol('a'): 'X'});
-  Expect.equals('X-Y-Z', result.reflectee);
-  Expect.throwsNoSuchMethodError(
-      () => om.invoke(const Symbol('b'), ['X']), 'Extra positional arguments');
-  Expect.throwsNoSuchMethodError(
-      () => om.invoke(const Symbol('b'), ['X'], {const Symbol('undef'): 'Y'}),
-      'Unmatched named argument');
-
-  result = om.invoke(const Symbol('c'), ['X']);
-  Expect.equals('X-null-C', result.reflectee);
-  result = om.invoke(const Symbol('c'), ['X', 'Y']);
-  Expect.equals('X-Y-C', result.reflectee);
-  result = om.invoke(const Symbol('c'), ['X', 'Y', 'Z']);
-  Expect.equals('X-Y-Z', result.reflectee);
-  Expect.throwsNoSuchMethodError(() => om.invoke(const Symbol('c'), []),
-      'Insufficient positional arguments');
-  Expect.throwsNoSuchMethodError(
-      () => om.invoke(const Symbol('c'), ['X', 'Y', 'Z', 'W']),
-      'Extra positional arguments');
-  Expect.throwsNoSuchMethodError(
-      () => om.invoke(const Symbol('c'), ['X'], {const Symbol('undef'): 'Y'}),
-      'Unmatched named argument');
-
-  result = om.invoke(const Symbol('d'), []);
-  Expect.equals('null-B-C', result.reflectee);
-  result = om.invoke(const Symbol('d'), ['X']);
-  Expect.equals('X-B-C', result.reflectee);
-  result = om.invoke(const Symbol('d'), ['X', 'Y']);
-  Expect.equals('X-Y-C', result.reflectee);
-  result = om.invoke(const Symbol('d'), ['X', 'Y', 'Z']);
-  Expect.equals('X-Y-Z', result.reflectee);
-  Expect.throwsNoSuchMethodError(
-      () => om.invoke(const Symbol('d'), ['X', 'Y', 'Z', 'W']),
-      'Extra positional arguments');
-  Expect.throwsNoSuchMethodError(
-      () => om.invoke(const Symbol('d'), ['X'], {const Symbol('undef'): 'Y'}),
-      'Unmatched named argument');
-
-  result = om.invoke(const Symbol('e'), ['X', 'Y', 'Z']);
-  Expect.equals('X-Y-Z', result.reflectee);
-  Expect.throwsNoSuchMethodError(() => om.invoke(const Symbol('e'), ['X']),
-      'Insufficient positional arguments');
-  Expect.throwsNoSuchMethodError(
-      () => om.invoke(const Symbol('e'), ['X', 'Y', 'Z', 'W']),
-      'Extra positional arguments');
-  Expect.throwsNoSuchMethodError(
-      () => om.invoke(const Symbol('e'), ['X'], {const Symbol('undef'): 'Y'}),
-      'Unmatched named argument');
-}
-
-testSyncNewInstance() {
-  ClassMirror cm = reflectClass(E);
-  InstanceMirror result;
-
-  result = cm.newInstance(Symbol.empty, ['X']);
-  Expect.equals('X-B-null', result.reflectee.field);
-  result = cm.newInstance(Symbol.empty, ['X'], {const Symbol('b'): 'Y'});
-  Expect.equals('X-Y-null', result.reflectee.field);
-  result = cm.newInstance(
-      Symbol.empty, ['X'], {const Symbol('c'): 'Z', const Symbol('b'): 'Y'});
-  Expect.equals('X-Y-Z', result.reflectee.field);
-  Expect.throwsNoSuchMethodError(() => cm.newInstance(Symbol.empty, []),
-      'Insufficient positional arguments');
-  Expect.throwsNoSuchMethodError(() => cm.newInstance(Symbol.empty, ['X', 'Y']),
-      'Extra positional arguments');
-  Expect.throwsNoSuchMethodError(
-      () => cm.newInstance(Symbol.empty, ['X'], {const Symbol('undef'): 'Y'}),
-      'Unmatched named argument');
-
-  result = cm.newInstance(const Symbol('b'), []);
-  Expect.equals('A-null-null', result.reflectee.field);
-  result = cm.newInstance(const Symbol('b'), [], {const Symbol('a'): 'X'});
-  Expect.equals('X-null-null', result.reflectee.field);
-  result = cm.newInstance(const Symbol('b'), [],
-      {const Symbol('b'): 'Y', const Symbol('c'): 'Z', const Symbol('a'): 'X'});
-  Expect.equals('X-Y-Z', result.reflectee.field);
-  Expect.throwsNoSuchMethodError(() => cm.newInstance(const Symbol('b'), ['X']),
-      'Extra positional arguments');
-  Expect.throwsNoSuchMethodError(
-      () => cm
-          .newInstance(const Symbol('b'), ['X'], {const Symbol('undef'): 'Y'}),
-      'Unmatched named argument');
-
-  result = cm.newInstance(const Symbol('c'), ['X']);
-  Expect.equals('X-null-C', result.reflectee.field);
-  result = cm.newInstance(const Symbol('c'), ['X', 'Y']);
-  Expect.equals('X-Y-C', result.reflectee.field);
-  result = cm.newInstance(const Symbol('c'), ['X', 'Y', 'Z']);
-  Expect.equals('X-Y-Z', result.reflectee.field);
-  Expect.throwsNoSuchMethodError(() => cm.newInstance(const Symbol('c'), []),
-      'Insufficient positional arguments');
-  Expect.throwsNoSuchMethodError(
-      () => cm.newInstance(const Symbol('c'), ['X', 'Y', 'Z', 'W']),
-      'Extra positional arguments');
-  Expect.throwsNoSuchMethodError(
-      () => cm
-          .newInstance(const Symbol('c'), ['X'], {const Symbol('undef'): 'Y'}),
-      'Unmatched named argument');
-
-  result = cm.newInstance(const Symbol('d'), []);
-  Expect.equals('null-B-C', result.reflectee.field);
-  result = cm.newInstance(const Symbol('d'), ['X']);
-  Expect.equals('X-B-C', result.reflectee.field);
-  result = cm.newInstance(const Symbol('d'), ['X', 'Y']);
-  Expect.equals('X-Y-C', result.reflectee.field);
-  result = cm.newInstance(const Symbol('d'), ['X', 'Y', 'Z']);
-  Expect.equals('X-Y-Z', result.reflectee.field);
-  Expect.throwsNoSuchMethodError(
-      () => cm.newInstance(const Symbol('d'), ['X', 'Y', 'Z', 'W']),
-      'Extra positional arguments');
-  Expect.throwsNoSuchMethodError(
-      () => cm
-          .newInstance(const Symbol('d'), ['X'], {const Symbol('undef'): 'Y'}),
-      'Unmatched named argument');
-
-  result = cm.newInstance(const Symbol('e'), ['X', 'Y', 'Z']);
-  Expect.equals('X-Y-Z', result.reflectee.field);
-  Expect.throwsNoSuchMethodError(() => cm.newInstance(const Symbol('e'), ['X']),
-      'Insufficient positional arguments');
-  Expect.throwsNoSuchMethodError(
-      () => cm.newInstance(const Symbol('e'), ['X', 'Y', 'Z', 'W']),
-      'Extra positional arguments');
-  Expect.throwsNoSuchMethodError(
-      () => cm
-          .newInstance(const Symbol('e'), ['X'], {const Symbol('undef'): 'Y'}),
-      'Unmatched named argument');
-}
-
-testSyncApply() {
-  ClosureMirror cm;
-  InstanceMirror result;
-
-  cm = reflect(a) as ClosureMirror;
-  result = cm.apply(['X']);
-  Expect.equals('X-B-null', result.reflectee);
-  result = cm.apply(['X'], {const Symbol('b'): 'Y'});
-  Expect.equals('X-Y-null', result.reflectee);
-  result = cm.apply(['X'], {const Symbol('c'): 'Z', const Symbol('b'): 'Y'});
-  Expect.equals('X-Y-Z', result.reflectee);
-  Expect.throwsNoSuchMethodError(
-      () => cm.apply([]), 'Insufficient positional arguments');
-  Expect.throwsNoSuchMethodError(
-      () => cm.apply(['X', 'Y']), 'Extra positional arguments');
-  Expect.throwsNoSuchMethodError(
-      () => cm.apply(['X'], {const Symbol('undef'): 'Y'}),
-      'Unmatched named argument');
-
-  cm = reflect(b) as ClosureMirror;
-  result = cm.apply([]);
-  Expect.equals('A-null-null', result.reflectee);
-  result = cm.apply([], {const Symbol('a'): 'X'});
-  Expect.equals('X-null-null', result.reflectee);
-  result = cm.apply([],
-      {const Symbol('b'): 'Y', const Symbol('c'): 'Z', const Symbol('a'): 'X'});
-  Expect.equals('X-Y-Z', result.reflectee);
-  Expect.throwsNoSuchMethodError(
-      () => cm.apply(['X']), 'Extra positional arguments');
-  Expect.throwsNoSuchMethodError(
-      () => cm.apply(['X'], {const Symbol('undef'): 'Y'}),
-      'Unmatched named argument');
-
-  cm = reflect(c) as ClosureMirror;
-  result = cm.apply(['X']);
-  Expect.equals('X-null-C', result.reflectee);
-  result = cm.apply(['X', 'Y']);
-  Expect.equals('X-Y-C', result.reflectee);
-  result = cm.apply(['X', 'Y', 'Z']);
-  Expect.equals('X-Y-Z', result.reflectee);
-  Expect.throwsNoSuchMethodError(
-      () => cm.apply([]), 'Insufficient positional arguments');
-  Expect.throwsNoSuchMethodError(
-      () => cm.apply(['X', 'Y', 'Z', 'W']), 'Extra positional arguments');
-  Expect.throwsNoSuchMethodError(
-      () => cm.apply(['X'], {const Symbol('undef'): 'Y'}),
-      'Unmatched named argument');
-
-  cm = reflect(d) as ClosureMirror;
-  result = cm.apply([]);
-  Expect.equals('null-B-C', result.reflectee);
-  result = cm.apply(['X']);
-  Expect.equals('X-B-C', result.reflectee);
-  result = cm.apply(['X', 'Y']);
-  Expect.equals('X-Y-C', result.reflectee);
-  result = cm.apply(['X', 'Y', 'Z']);
-  Expect.equals('X-Y-Z', result.reflectee);
-  Expect.throwsNoSuchMethodError(
-      () => cm.apply(['X', 'Y', 'Z', 'W']), 'Extra positional arguments');
-  Expect.throwsNoSuchMethodError(
-      () => cm.apply(['X'], {const Symbol('undef'): 'Y'}),
-      'Unmatched named argument');
-
-  cm = reflect(e) as ClosureMirror;
-  result = cm.apply(['X', 'Y', 'Z']);
-  Expect.equals('X-Y-Z', result.reflectee);
-  Expect.throwsNoSuchMethodError(
-      () => cm.apply(['X']), 'Insufficient positional arguments');
-  Expect.throwsNoSuchMethodError(
-      () => cm.apply(['X', 'Y', 'Z', 'W']), 'Extra positional arguments');
-  Expect.throwsNoSuchMethodError(
-      () => cm.apply(['X'], {const Symbol('undef'): 'Y'}),
-      'Unmatched named argument');
-}
-
-main() {
-  isDart2js = true; //# 01: ok
-
-  testSyncInvoke(reflect(new C())); // InstanceMirror
-
-  if (isDart2js) return;
-
-  testSyncInvoke(reflectClass(D)); // ClassMirror
-  LibraryMirror lib = reflectClass(D).owner as LibraryMirror;
-  testSyncInvoke(lib); // LibraryMirror
-
-  testSyncNewInstance();
-
-  testSyncApply();
-}
diff --git a/tests/lib_2/mirrors/invoke_natives_malicious_test.dart b/tests/lib_2/mirrors/invoke_natives_malicious_test.dart
deleted file mode 100644
index 7a04b42f0bd..00000000000
--- a/tests/lib_2/mirrors/invoke_natives_malicious_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.invoke_natives;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-test(name, action) {
-  print(name);
-  Expect.throws(action, (e) => true, name);
-  print("done");
-}
-
-main() {
-  LibraryMirror dartcore = reflectClass(Object).owner as LibraryMirror;
-
-  test('List_copyFromObjectArray', () {
-    var receiver = new List.filled(3, null);
-    var selector = MirrorSystem.getSymbol('_copyFromObjectArray', dartcore);
-    var src = new List.filled(3, null);
-    var srcStart = 10;
-    var dstStart = 10;
-    var count = 10;
-    reflect(receiver).invoke(selector, [src, srcStart, dstStart, count]);
-  });
-}
diff --git a/tests/lib_2/mirrors/invoke_private_test.dart b/tests/lib_2/mirrors/invoke_private_test.dart
deleted file mode 100644
index e4cec36870d..00000000000
--- a/tests/lib_2/mirrors/invoke_private_test.dart
+++ /dev/null
@@ -1,85 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.invoke_private_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class C {
-  var _field;
-  C() : this._field = 'default';
-  C._named(this._field);
-
-  get _getter => 'get $_field';
-  set _setter(v) => _field = 'set $v';
-  _method(x, y, z) => '$x+$y+$z';
-
-  static var _staticField = 'initial';
-  static get _staticGetter => 'sget $_staticField';
-  static set _staticSetter(v) => _staticField = 'sset $v';
-  static _staticFunction(x, y) => "($x,$y)";
-}
-
-var _libraryField = 'a priori';
-get _libraryGetter => 'lget $_libraryField';
-set _librarySetter(v) => _libraryField = 'lset $v';
-_libraryFunction(x, y) => '$x$y';
-
-main() {
-  var result;
-
-  // InstanceMirror.
-  C c = new C();
-  InstanceMirror im = reflect(c);
-  result = im.invoke(#_method, [2, 4, 8]);
-  Expect.equals('2+4+8', result.reflectee);
-
-  result = im.getField(#_getter);
-  Expect.equals('get default', result.reflectee);
-  result = im.getField(#_field);
-  Expect.equals('default', result.reflectee);
-
-  im.setField(#_setter, 'foo');
-  Expect.equals('set foo', c._field);
-  im.setField(#_field, 'bar');
-  Expect.equals('bar', c._field);
-
-  // ClassMirror.
-  ClassMirror cm = reflectClass(C);
-  result = cm.invoke(#_staticFunction, [3, 4]);
-  Expect.equals('(3,4)', result.reflectee);
-
-  result = cm.getField(#_staticGetter);
-  Expect.equals('sget initial', result.reflectee);
-  result = cm.getField(#_staticField);
-  Expect.equals('initial', result.reflectee);
-
-  cm.setField(#_staticSetter, 'sfoo');
-  Expect.equals('sset sfoo', C._staticField);
-  cm.setField(#_staticField, 'sbar');
-  Expect.equals('sbar', C._staticField);
-
-  result = cm.newInstance(#_named, ['my value']);
-  Expect.isTrue(result.reflectee is C);
-  Expect.equals('my value', result.reflectee._field);
-
-  // LibraryMirror.
-  LibraryMirror lm = cm.owner as LibraryMirror;
-  result = lm.invoke(#_libraryFunction, [':', ')']);
-  Expect.equals(':)', result.reflectee);
-
-  result = lm.getField(#_libraryGetter);
-  Expect.equals('lget a priori', result.reflectee);
-  result = lm.getField(#_libraryField);
-  Expect.equals('a priori', result.reflectee);
-
-  lm.setField(#_librarySetter, 'lfoo');
-  Expect.equals('lset lfoo', _libraryField);
-  lm.setField(#_libraryField, 'lbar');
-  Expect.equals('lbar', _libraryField);
-}
diff --git a/tests/lib_2/mirrors/invoke_private_wrong_library_test.dart b/tests/lib_2/mirrors/invoke_private_wrong_library_test.dart
deleted file mode 100644
index 828bbdac053..00000000000
--- a/tests/lib_2/mirrors/invoke_private_wrong_library_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.invoke_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-import "package:async_helper/async_helper.dart";
-
-import 'invoke_private_test.dart' show C;
-
-main() {
-  var result;
-
-  C c = new C();
-  InstanceMirror im = reflect(c);
-  Expect.throwsNoSuchMethodError(() => im.invoke(#_method, [2, 4, 8]));
-  Expect.throwsNoSuchMethodError(() => im.getField(#_getter));
-  Expect.throwsNoSuchMethodError(() => im.getField(#_field));
-  Expect.throwsNoSuchMethodError(() => im.setField(#_setter, 'foo'));
-  Expect.throwsNoSuchMethodError(() => im.setField(#_field, 'bar'));
-
-  ClassMirror cm = reflectClass(C);
-  Expect.throwsNoSuchMethodError(() => cm.invoke(#_staticFunction, [3, 4]));
-  Expect.throwsNoSuchMethodError(() => cm.getField(#_staticGetter));
-  Expect.throwsNoSuchMethodError(() => cm.getField(#_staticField));
-  Expect.throwsNoSuchMethodError(() => cm.setField(#_staticSetter, 'sfoo'));
-  Expect.throwsNoSuchMethodError(() => cm.setField(#_staticField, 'sbar'));
-  Expect.throwsNoSuchMethodError(() => cm.newInstance(#_named, ['my value']));
-
-  LibraryMirror lm = cm.owner as LibraryMirror;
-  Expect.throwsNoSuchMethodError(
-      () => lm.invoke(#_libraryFunction, [':', ')']));
-  Expect.throwsNoSuchMethodError(() => lm.getField(#_libraryGetter));
-  Expect.throwsNoSuchMethodError(() => lm.getField(#_libraryField));
-  Expect.throwsNoSuchMethodError(() => lm.setField(#_librarySetter, 'lfoo'));
-  Expect.throwsNoSuchMethodError(() => lm.setField(#_libraryField, 'lbar'));
-}
diff --git a/tests/lib_2/mirrors/invoke_test.dart b/tests/lib_2/mirrors/invoke_test.dart
deleted file mode 100644
index 8d187cb9f4b..00000000000
--- a/tests/lib_2/mirrors/invoke_test.dart
+++ /dev/null
@@ -1,147 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.invoke_test;
-
-import 'dart:mirrors';
-
-import 'dart:async' show Future;
-
-import 'package:expect/expect.dart';
-
-class C {
-  var field;
-  C() : this.field = 'default';
-  C.named(this.field);
-
-  get getter => 'get $field';
-  set setter(v) => field = 'set $v';
-  method(x, y, z) => '$x+$y+$z';
-  toString() => 'a C';
-
-  noSuchMethod(invocation) => 'DNU';
-
-  static var staticField = 'initial';
-  static get staticGetter => 'sget $staticField';
-  static set staticSetter(v) => staticField = 'sset $v';
-  static staticFunction(x, y) => "($x,$y)";
-}
-
-var libraryField = 'a priori';
-get libraryGetter => 'lget $libraryField';
-set librarySetter(v) => libraryField = 'lset $v';
-libraryFunction(x, y) => '$x$y';
-
-testSync() {
-  var result;
-
-  // InstanceMirror invoke
-  C c = new C();
-  InstanceMirror im = reflect(c);
-  result = im.invoke(const Symbol('method'), [2, 4, 8]);
-  Expect.equals('2+4+8', result.reflectee);
-  result = im.invoke(const Symbol('doesntExist'), [2, 4, 8]);
-  Expect.equals('DNU', result.reflectee);
-  result = im.invoke(const Symbol('method'), [2, 4]); // Wrong arity.
-  Expect.equals('DNU', result.reflectee);
-
-  // InstanceMirror invokeGetter
-  result = im.getField(const Symbol('getter'));
-  Expect.equals('get default', result.reflectee);
-  result = im.getField(const Symbol('field'));
-  Expect.equals('default', result.reflectee);
-  result = im.getField(const Symbol('doesntExist'));
-  Expect.equals('DNU', result.reflectee);
-
-  // InstanceMirror invokeSetter
-  result = im.setField(const Symbol('setter'), 'foo');
-  Expect.equals('foo', result.reflectee);
-  Expect.equals('set foo', c.field);
-  Expect.equals('set foo', im.getField(const Symbol('field')).reflectee);
-  result = im.setField(const Symbol('field'), 'bar');
-  Expect.equals('bar', result.reflectee);
-  Expect.equals('bar', c.field);
-  Expect.equals('bar', im.getField(const Symbol('field')).reflectee);
-  result = im.setField(const Symbol('doesntExist'), 'bar');
-  Expect.equals('bar', result.reflectee);
-
-  // ClassMirror invoke
-  ClassMirror cm = reflectClass(C);
-  result = cm.invoke(const Symbol('staticFunction'), [3, 4]);
-  Expect.equals('(3,4)', result.reflectee);
-  Expect.throwsNoSuchMethodError(
-      () => cm.invoke(const Symbol('doesntExist'), [3, 4]), 'Not defined');
-  Expect.throwsNoSuchMethodError(
-      () => cm.invoke(const Symbol('staticFunction'), [3]), 'Wrong arity');
-
-  // ClassMirror invokeGetter
-  result = cm.getField(const Symbol('staticGetter'));
-  Expect.equals('sget initial', result.reflectee);
-  result = cm.getField(const Symbol('staticField'));
-  Expect.equals('initial', result.reflectee);
-  Expect.throwsNoSuchMethodError(
-      () => cm.getField(const Symbol('doesntExist')), 'Not defined');
-
-  // ClassMirror invokeSetter
-  result = cm.setField(const Symbol('staticSetter'), 'sfoo');
-  Expect.equals('sfoo', result.reflectee);
-  Expect.equals('sset sfoo', C.staticField);
-  Expect.equals(
-      'sset sfoo', cm.getField(const Symbol('staticField')).reflectee);
-  result = cm.setField(const Symbol('staticField'), 'sbar');
-  Expect.equals('sbar', result.reflectee);
-  Expect.equals('sbar', C.staticField);
-  Expect.equals('sbar', cm.getField(const Symbol('staticField')).reflectee);
-  Expect.throwsNoSuchMethodError(
-      () => cm.setField(const Symbol('doesntExist'), 'sbar'), 'Not defined');
-
-  // ClassMirror invokeConstructor
-  result = cm.newInstance(Symbol.empty, []);
-  Expect.isTrue(result.reflectee is C);
-  Expect.equals('default', result.reflectee.field);
-  result = cm.newInstance(const Symbol('named'), ['my value']);
-  Expect.isTrue(result.reflectee is C);
-  Expect.equals('my value', result.reflectee.field);
-  Expect.throwsNoSuchMethodError(
-      () => cm.newInstance(const Symbol('doesntExist'), ['my value']),
-      'Not defined');
-  Expect.throwsNoSuchMethodError(
-      () => cm.newInstance(const Symbol('named'), []), 'Wrong arity');
-
-  // LibraryMirror invoke
-  LibraryMirror lm = cm.owner as LibraryMirror;
-  result = lm.invoke(const Symbol('libraryFunction'), [':', ')']);
-  Expect.equals(':)', result.reflectee);
-  Expect.throwsNoSuchMethodError(
-      () => lm.invoke(const Symbol('doesntExist'), [':', ')']), 'Not defined');
-  Expect.throwsNoSuchMethodError(
-      () => lm.invoke(const Symbol('libraryFunction'), [':']), 'Wrong arity');
-
-  // LibraryMirror invokeGetter
-  result = lm.getField(const Symbol('libraryGetter'));
-  Expect.equals('lget a priori', result.reflectee);
-  result = lm.getField(const Symbol('libraryField'));
-  Expect.equals('a priori', result.reflectee);
-  Expect.throwsNoSuchMethodError(
-      () => lm.getField(const Symbol('doesntExist')), 'Not defined');
-
-  // LibraryMirror invokeSetter
-  result = lm.setField(const Symbol('librarySetter'), 'lfoo');
-  Expect.equals('lfoo', result.reflectee);
-  Expect.equals('lset lfoo', libraryField);
-  Expect.equals(
-      'lset lfoo', lm.getField(const Symbol('libraryField')).reflectee);
-  result = lm.setField(const Symbol('libraryField'), 'lbar');
-  Expect.equals('lbar', result.reflectee);
-  Expect.equals('lbar', libraryField);
-  Expect.equals('lbar', lm.getField(const Symbol('libraryField')).reflectee);
-  Expect.throwsNoSuchMethodError(
-      () => lm.setField(const Symbol('doesntExist'), 'lbar'), 'Not defined');
-}
-
-main() {
-  testSync();
-}
diff --git a/tests/lib_2/mirrors/invoke_throws_test.dart b/tests/lib_2/mirrors/invoke_throws_test.dart
deleted file mode 100644
index b8d75ac36dc..00000000000
--- a/tests/lib_2/mirrors/invoke_throws_test.dart
+++ /dev/null
@@ -1,89 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.invoke_throws_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class MyException {}
-
-class Class {
-  Class.noException();
-  Class.generative() {
-    throw new MyException();
-  }
-  Class.redirecting() : this.generative();
-  factory Class.faktory() {
-    throw new MyException();
-  }
-  factory Class.redirectingFactory() = Class.faktory;
-
-  get getter {
-    throw new MyException();
-  }
-
-  set setter(v) {
-    throw new MyException();
-  }
-
-  method() {
-    throw new MyException();
-  }
-
-  noSuchMethod(invocation) {
-    throw new MyException();
-  }
-
-  static get staticGetter {
-    throw new MyException();
-  }
-
-  static set staticSetter(v) {
-    throw new MyException();
-  }
-
-  static staticFunction() {
-    throw new MyException();
-  }
-}
-
-get libraryGetter {
-  throw new MyException();
-}
-
-set librarySetter(v) {
-  throw new MyException();
-}
-
-libraryFunction() {
-  throw new MyException();
-}
-
-bool isMyException(e) => e is MyException;
-
-main() {
-  InstanceMirror im = reflect(new Class.noException());
-  Expect.throws(() => im.getField(#getter), isMyException);
-  Expect.throws(() => im.setField(#setter, ['arg']), isMyException);
-  Expect.throws(() => im.invoke(#method, []), isMyException);
-  Expect.throws(() => im.invoke(#triggerNoSuchMethod, []), isMyException);
-
-  ClassMirror cm = reflectClass(Class);
-  Expect.throws(() => cm.getField(#staticGetter), isMyException);
-  Expect.throws(() => cm.setField(#staticSetter, ['arg']), isMyException);
-  Expect.throws(() => cm.invoke(#staticFunction, []), isMyException);
-  Expect.throws(() => cm.newInstance(#generative, []), isMyException);
-  Expect.throws(() => cm.newInstance(#redirecting, []), isMyException);
-  Expect.throws(() => cm.newInstance(#faktory, []), isMyException);
-  Expect.throws(() => cm.newInstance(#redirectingFactory, []), isMyException);
-
-  LibraryMirror lm = reflectClass(Class).owner as LibraryMirror;
-  Expect.throws(() => lm.getField(#libraryGetter), isMyException);
-  Expect.throws(() => lm.setField(#librarySetter, ['arg']), isMyException);
-  Expect.throws(() => lm.invoke(#libraryFunction, []), isMyException);
-}
diff --git a/tests/lib_2/mirrors/io_html_mutual_exclusion_test.dart b/tests/lib_2/mirrors/io_html_mutual_exclusion_test.dart
deleted file mode 100644
index 39a48d9abae..00000000000
--- a/tests/lib_2/mirrors/io_html_mutual_exclusion_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.io_html_mutual_exclusion;
-
-import 'dart:mirrors';
-
-main() {
-  var libraries = currentMirrorSystem().libraries;
-  bool has_io = libraries[Uri.parse('dart:io')] != null;
-  bool has_html = libraries[Uri.parse('dart:html')] != null;
-
-  if (has_io && has_html) {
-    throw "No embedder should have both dart:io and dart:html accessible";
-  }
-}
diff --git a/tests/lib_2/mirrors/is_odd_test.dart b/tests/lib_2/mirrors/is_odd_test.dart
deleted file mode 100644
index 63fbf1f8657..00000000000
--- a/tests/lib_2/mirrors/is_odd_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Test that otherwise unused intercepted methods are reified correctly.  This
-/// was a bug in dart2js.
-library test.is_odd_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-main() {
-  Expect.isTrue(reflect(1).getField(#isOdd).reflectee);
-  Expect.isFalse(reflect(2).getField(#isOdd).reflectee);
-}
diff --git a/tests/lib_2/mirrors/issue21079_test.dart b/tests/lib_2/mirrors/issue21079_test.dart
deleted file mode 100644
index cb705f061f6..00000000000
--- a/tests/lib_2/mirrors/issue21079_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test case for http://dartbug.com/21079
-import 'dart:mirrors';
-import "package:expect/expect.dart";
-
-void main() {
-  Expect.isTrue(
-      reflectClass(MyException).superclass.reflectedType == FormatException);
-
-  Expect.isTrue(reflectClass(FormatException).reflectedType == FormatException);
-}
-
-class MyException extends FormatException {
-  MyException() : super("Test") {}
-}
diff --git a/tests/lib_2/mirrors/lazy_static_test.dart b/tests/lib_2/mirrors/lazy_static_test.dart
deleted file mode 100644
index 81bd54b3ad8..00000000000
--- a/tests/lib_2/mirrors/lazy_static_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test static members.
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-import 'stringify.dart';
-
-class Foo {
-  static dynamic hello = {
-    'a': 'b',
-    'c': 'd',
-  };
-}
-
-void main() {
-  expect('Variable(s(hello) in s(Foo), static)',
-      reflectClass(Foo).declarations[#hello]);
-  var reflectee = reflectClass(Foo).getField(#hello).reflectee;
-  Expect.stringEquals('a, c', reflectee.keys.join(', '));
-  // Call the lazy getter twice as different things probably happen in the
-  // underlying implementation.
-  reflectee = reflectClass(Foo).getField(#hello).reflectee;
-  Expect.stringEquals('a, c', reflectee.keys.join(', '));
-  var value = 'fisk';
-  Foo.hello = value;
-  reflectee = reflectClass(Foo).getField(#hello).reflectee;
-  Expect.identical(value, reflectee);
-}
diff --git a/tests/lib_2/mirrors/libraries_test.dart b/tests/lib_2/mirrors/libraries_test.dart
deleted file mode 100644
index e7082daca95..00000000000
--- a/tests/lib_2/mirrors/libraries_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.libraries_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-main() {
-  MirrorSystem mirrors = currentMirrorSystem();
-  Expect.isNotNull(mirrors, 'mirrors is null');
-
-  Map<Uri, LibraryMirror> libraries = mirrors.libraries;
-  Expect.isNotNull(libraries, 'libraries is null');
-
-  Expect.isTrue(libraries.isNotEmpty);
-  LibraryMirror mirrorsLibrary = libraries[Uri.parse('dart:mirrors')];
-  if (mirrorsLibrary == null) {
-    // In minified mode we don't preserve the URIs.
-    mirrorsLibrary = libraries.values
-        .firstWhere((LibraryMirror lm) => lm.simpleName == #dart.mirrors);
-    Uri uri = mirrorsLibrary.uri;
-    Expect.equals("https", uri.scheme);
-    Expect.equals("dartlang.org", uri.host);
-    Expect.equals("/dart2js-stripped-uri", uri.path);
-  }
-
-  ClassMirror cls = mirrorsLibrary.declarations[#LibraryMirror] as ClassMirror;
-  Expect.isNotNull(cls, 'cls is null');
-
-  Expect.equals(#dart.mirrors.LibraryMirror, cls.qualifiedName);
-  Expect.equals(reflectClass(LibraryMirror), cls);
-}
diff --git a/tests/lib_2/mirrors/library_declarations_test.dart b/tests/lib_2/mirrors/library_declarations_test.dart
deleted file mode 100644
index a54a1a3047a..00000000000
--- a/tests/lib_2/mirrors/library_declarations_test.dart
+++ /dev/null
@@ -1,131 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.library_declarations_test;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-import 'stringify.dart';
-import 'declarations_model.dart' as declarations_model;
-
-main() {
-  LibraryMirror lm =
-      currentMirrorSystem().findLibrary(#test.declarations_model);
-
-  Expect.setEquals([
-    'Variable(s(_libraryVariable)'
-        ' in s(test.declarations_model), private, top-level, static)',
-    'Variable(s(libraryVariable)'
-        ' in s(test.declarations_model), top-level, static)'
-  ], lm.declarations.values.where((dm) => dm is VariableMirror).map(stringify),
-      'variables');
-
-  // dart2js stops testing here.
-  return; // //# 01: ok
-
-  Expect.setEquals(
-      [
-        'Method(s(_libraryGetter)'
-            ' in s(test.declarations_model), private, top-level, static, getter)',
-        'Method(s(libraryGetter)'
-            ' in s(test.declarations_model), top-level, static, getter)'
-      ],
-      lm.declarations.values
-          .where((dm) => dm is MethodMirror && dm.isGetter)
-          .map(stringify),
-      'getters');
-
-  Expect.setEquals(
-      [
-        'Method(s(_librarySetter=)'
-            ' in s(test.declarations_model), private, top-level, static, setter)',
-        'Method(s(librarySetter=)'
-            ' in s(test.declarations_model), top-level, static, setter)'
-      ],
-      lm.declarations.values
-          .where((dm) => dm is MethodMirror && dm.isSetter)
-          .map(stringify),
-      'setters');
-
-  Expect.setEquals(
-      [
-        'Method(s(_libraryMethod)'
-            ' in s(test.declarations_model), private, top-level, static)',
-        'Method(s(libraryMethod)'
-            ' in s(test.declarations_model), top-level, static)'
-      ],
-      lm.declarations.values
-          .where((dm) => dm is MethodMirror && dm.isRegularMethod)
-          .map(stringify),
-      'regular methods');
-
-  Expect.setEquals([
-    'Class(s(Class) in s(test.declarations_model), top-level)',
-    'Class(s(ConcreteClass) in s(test.declarations_model), top-level)',
-    'Class(s(Interface) in s(test.declarations_model), top-level)',
-    'Class(s(Mixin) in s(test.declarations_model), top-level)',
-    'Class(s(Superclass) in s(test.declarations_model), top-level)',
-    'Class(s(_PrivateClass)'
-        ' in s(test.declarations_model), private, top-level)'
-  ], lm.declarations.values.where((dm) => dm is ClassMirror).map(stringify),
-      'classes');
-
-  Expect.setEquals([
-    'Class(s(Class) in s(test.declarations_model), top-level)',
-    'Class(s(ConcreteClass) in s(test.declarations_model), top-level)',
-    'Class(s(Interface) in s(test.declarations_model), top-level)',
-    'Class(s(Mixin) in s(test.declarations_model), top-level)',
-    'Type(s(Predicate) in s(test.declarations_model), top-level)',
-    'Class(s(Superclass) in s(test.declarations_model), top-level)',
-    'Class(s(_PrivateClass)'
-        ' in s(test.declarations_model), private, top-level)'
-  ], lm.declarations.values.where((dm) => dm is TypeMirror).map(stringify),
-      'types');
-
-  Expect.setEquals([
-    'Class(s(Class) in s(test.declarations_model), top-level)',
-    'Class(s(ConcreteClass) in s(test.declarations_model), top-level)',
-    'Class(s(Interface) in s(test.declarations_model), top-level)',
-    'Class(s(Mixin) in s(test.declarations_model), top-level)',
-    'Type(s(Predicate) in s(test.declarations_model), top-level)',
-    'Class(s(Superclass) in s(test.declarations_model), top-level)',
-    'Method(s(libraryGetter)'
-        ' in s(test.declarations_model), top-level, static, getter)',
-    'Method(s(libraryMethod)'
-        ' in s(test.declarations_model), top-level, static)',
-    'Method(s(librarySetter=)'
-        ' in s(test.declarations_model), top-level, static, setter)',
-    'Variable(s(libraryVariable)'
-        ' in s(test.declarations_model), top-level, static)'
-  ], lm.declarations.values.where((dm) => !dm.isPrivate).map(stringify),
-      'public');
-
-  Expect.setEquals([
-    'Class(s(Class) in s(test.declarations_model), top-level)',
-    'Class(s(ConcreteClass) in s(test.declarations_model), top-level)',
-    'Class(s(Interface) in s(test.declarations_model), top-level)',
-    'Class(s(Mixin) in s(test.declarations_model), top-level)',
-    'Type(s(Predicate) in s(test.declarations_model), top-level)',
-    'Class(s(Superclass) in s(test.declarations_model), top-level)',
-    'Class(s(_PrivateClass) in s(test.declarations_model), private, top-level)',
-    'Method(s(_libraryGetter)'
-        ' in s(test.declarations_model), private, top-level, static, getter)',
-    'Method(s(_libraryMethod)'
-        ' in s(test.declarations_model), private, top-level, static)',
-    'Method(s(_librarySetter=)'
-        ' in s(test.declarations_model), private, top-level, static, setter)',
-    'Variable(s(_libraryVariable)'
-        ' in s(test.declarations_model), private, top-level, static)',
-    'Method(s(libraryGetter)'
-        ' in s(test.declarations_model), top-level, static, getter)',
-    'Method(s(libraryMethod) in s(test.declarations_model), top-level, static)',
-    'Method(s(librarySetter=)'
-        ' in s(test.declarations_model), top-level, static, setter)',
-    'Variable(s(libraryVariable)'
-        ' in s(test.declarations_model), top-level, static)'
-  ], lm.declarations.values.map(stringify), 'all declarations');
-}
diff --git a/tests/lib_2/mirrors/library_enumeration_deferred_loading_test.dart b/tests/lib_2/mirrors/library_enumeration_deferred_loading_test.dart
deleted file mode 100644
index d0009b67439..00000000000
--- a/tests/lib_2/mirrors/library_enumeration_deferred_loading_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library library_enumeration_deferred_loading;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-import 'other_library.dart' deferred as other;
-
-main() {
-  var ms = currentMirrorSystem();
-  Expect.throws(() => ms.findLibrary(#test.other_library), (e) => true,
-      "should not be loaded yet");
-
-  asyncStart();
-  other.loadLibrary().then((_) {
-    asyncEnd();
-    LibraryMirror otherMirror = ms.findLibrary(#test.other_library);
-    Expect.isNotNull(otherMirror);
-    Expect.equals(#test.other_library, otherMirror.simpleName);
-    Expect.equals(42, other.topLevelMethod());
-  });
-}
diff --git a/tests/lib_2/mirrors/library_exports_hidden.dart b/tests/lib_2/mirrors/library_exports_hidden.dart
deleted file mode 100644
index 192262bf69a..00000000000
--- a/tests/lib_2/mirrors/library_exports_hidden.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library library_exports_hidden;
-
-export 'library_imports_a.dart' hide somethingFromA, somethingFromBoth;
-export 'library_imports_b.dart' hide somethingFromB;
-
-var somethingFromHidden;
diff --git a/tests/lib_2/mirrors/library_exports_hidden_test.dart b/tests/lib_2/mirrors/library_exports_hidden_test.dart
deleted file mode 100644
index 605960f0f88..00000000000
--- a/tests/lib_2/mirrors/library_exports_hidden_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.library_exports_hidden;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-import 'stringify.dart';
-
-import 'library_exports_hidden.dart';
-
-test(MirrorSystem mirrors) {
-  LibraryMirror hidden = mirrors.findLibrary(#library_exports_hidden);
-  LibraryMirror a = mirrors.findLibrary(#library_imports_a);
-  LibraryMirror b = mirrors.findLibrary(#library_imports_b);
-  LibraryMirror core = mirrors.findLibrary(#dart.core);
-
-  Expect.setEquals(
-      [a, b, core], hidden.libraryDependencies.map((dep) => dep.targetLibrary));
-
-  Expect.stringEquals(
-      'import dart.core\n'
-      'export library_imports_a\n'
-      ' hide somethingFromA\n'
-      ' hide somethingFromBoth\n'
-      'export library_imports_b\n'
-      ' hide somethingFromB\n',
-      stringifyDependencies(hidden));
-}
-
-main() {
-  test(currentMirrorSystem());
-}
diff --git a/tests/lib_2/mirrors/library_exports_shown.dart b/tests/lib_2/mirrors/library_exports_shown.dart
deleted file mode 100644
index 10bb286f809..00000000000
--- a/tests/lib_2/mirrors/library_exports_shown.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library library_exports_shown;
-
-export 'library_imports_a.dart' show somethingFromA, somethingFromBoth;
-export 'library_imports_b.dart' show somethingFromB;
-
-var somethingFromShown;
diff --git a/tests/lib_2/mirrors/library_exports_shown_test.dart b/tests/lib_2/mirrors/library_exports_shown_test.dart
deleted file mode 100644
index 714074311ad..00000000000
--- a/tests/lib_2/mirrors/library_exports_shown_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.library_exports_shown;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-import 'stringify.dart';
-
-import 'library_exports_shown.dart';
-
-test(MirrorSystem mirrors) {
-  LibraryMirror shown = mirrors.findLibrary(#library_exports_shown);
-  LibraryMirror a = mirrors.findLibrary(#library_imports_a);
-  LibraryMirror b = mirrors.findLibrary(#library_imports_b);
-
-  LibraryMirror core = mirrors.findLibrary(#dart.core);
-
-  Expect.setEquals(
-      [a, b, core], shown.libraryDependencies.map((dep) => dep.targetLibrary));
-
-  Expect.stringEquals(
-      'import dart.core\n'
-      'export library_imports_a\n'
-      ' show somethingFromA\n'
-      ' show somethingFromBoth\n'
-      'export library_imports_b\n'
-      ' show somethingFromB\n',
-      stringifyDependencies(shown));
-}
-
-main() {
-  test(currentMirrorSystem());
-}
diff --git a/tests/lib_2/mirrors/library_import_deferred_loading_test.dart b/tests/lib_2/mirrors/library_import_deferred_loading_test.dart
deleted file mode 100644
index cc193ccd231..00000000000
--- a/tests/lib_2/mirrors/library_import_deferred_loading_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library library_loading_deferred_loading;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-import 'stringify.dart';
-import 'package:async_helper/async_helper.dart';
-
-import 'other_library.dart' deferred as other;
-
-main() {
-  var ms = currentMirrorSystem();
-  LibraryMirror thisLibrary = ms.findLibrary(#library_loading_deferred_loading);
-  LibraryDependencyMirror dep =
-      thisLibrary.libraryDependencies.singleWhere((d) => d.prefix == #other);
-  Expect.isNull(dep.targetLibrary, "should not be loaded yet");
-
-  asyncStart();
-  other.loadLibrary().then((_) {
-    asyncEnd();
-    Expect.isNotNull(dep.targetLibrary);
-    Expect.equals(#test.other_library, dep.targetLibrary.simpleName);
-    Expect.equals(42, other.topLevelMethod());
-  });
-}
diff --git a/tests/lib_2/mirrors/library_imports_a.dart b/tests/lib_2/mirrors/library_imports_a.dart
deleted file mode 100644
index fe85308bf7d..00000000000
--- a/tests/lib_2/mirrors/library_imports_a.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library library_imports_a;
-
-var somethingFromA;
-var somethingFromBoth;
diff --git a/tests/lib_2/mirrors/library_imports_b.dart b/tests/lib_2/mirrors/library_imports_b.dart
deleted file mode 100644
index df0161fe265..00000000000
--- a/tests/lib_2/mirrors/library_imports_b.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library library_imports_b;
-
-var somethingFromB;
-var somethingFromBoth;
diff --git a/tests/lib_2/mirrors/library_imports_bad_metadata_test.dart b/tests/lib_2/mirrors/library_imports_bad_metadata_test.dart
deleted file mode 100644
index e0925c96efc..00000000000
--- a/tests/lib_2/mirrors/library_imports_bad_metadata_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.library_imports_bad_metadata;
-
-@undefined // //# 01: compile-time error
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-main() {
-  LibraryMirror thisLibrary =
-      currentMirrorSystem().findLibrary(#test.library_imports_bad_metadata);
-
-  thisLibrary.libraryDependencies.forEach((dep) {
-    Expect.listEquals([], dep.metadata);
-  });
-}
diff --git a/tests/lib_2/mirrors/library_imports_deferred_test.dart b/tests/lib_2/mirrors/library_imports_deferred_test.dart
deleted file mode 100644
index d2ca36ee3e3..00000000000
--- a/tests/lib_2/mirrors/library_imports_deferred_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.library_imports_deferred;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-import 'stringify.dart';
-
-import 'dart:math' as eagermath;
-import 'dart:math' deferred as lazymath;
-
-test(MirrorSystem mirrors) {
-  LibraryMirror thisLibrary =
-      mirrors.findLibrary(#test.library_imports_deferred);
-  LibraryMirror math = mirrors.findLibrary(#dart.math);
-
-  var importsOfCollection = thisLibrary.libraryDependencies
-      .where((dep) => dep.targetLibrary == math)
-      .toList();
-  Expect.equals(2, importsOfCollection.length);
-  Expect.notEquals(importsOfCollection[0].isDeferred,
-      importsOfCollection[1].isDeferred); // One deferred, one not.
-
-  // Only math is defer-imported.
-  LibraryDependencyMirror dep =
-      thisLibrary.libraryDependencies.singleWhere((dep) => dep.isDeferred);
-  Expect.equals(math, dep.targetLibrary);
-
-  Expect.stringEquals(
-      'import dart.math as eagermath\n'
-      'import dart.math deferred as lazymath\n'
-      'import dart.mirrors\n'
-      'import expect\n'
-      'import test.stringify\n',
-      stringifyDependencies(thisLibrary));
-}
-
-main() {
-  test(currentMirrorSystem());
-}
diff --git a/tests/lib_2/mirrors/library_imports_hidden.dart b/tests/lib_2/mirrors/library_imports_hidden.dart
deleted file mode 100644
index e453ea82a2c..00000000000
--- a/tests/lib_2/mirrors/library_imports_hidden.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library library_imports_hidden;
-
-import 'library_imports_a.dart' hide somethingFromA, somethingFromBoth;
-import 'library_imports_b.dart' hide somethingFromB;
-
-var somethingFromHidden;
diff --git a/tests/lib_2/mirrors/library_imports_hidden_test.dart b/tests/lib_2/mirrors/library_imports_hidden_test.dart
deleted file mode 100644
index 51e5bfdfd56..00000000000
--- a/tests/lib_2/mirrors/library_imports_hidden_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.library_imports_hidden;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-import 'stringify.dart';
-
-import 'library_imports_hidden.dart';
-
-test(MirrorSystem mirrors) {
-  LibraryMirror hidden = mirrors.findLibrary(#library_imports_hidden);
-  LibraryMirror a = mirrors.findLibrary(#library_imports_a);
-  LibraryMirror b = mirrors.findLibrary(#library_imports_b);
-  LibraryMirror core = mirrors.findLibrary(#dart.core);
-
-  Expect.setEquals(
-      [a, b, core], hidden.libraryDependencies.map((dep) => dep.targetLibrary));
-
-  Expect.stringEquals(
-      'import dart.core\n'
-      'import library_imports_a\n'
-      ' hide somethingFromA\n'
-      ' hide somethingFromBoth\n'
-      'import library_imports_b\n'
-      ' hide somethingFromB\n',
-      stringifyDependencies(hidden));
-}
-
-main() {
-  test(currentMirrorSystem());
-}
diff --git a/tests/lib_2/mirrors/library_imports_metadata.dart b/tests/lib_2/mirrors/library_imports_metadata.dart
deleted file mode 100644
index 19cea41a7b8..00000000000
--- a/tests/lib_2/mirrors/library_imports_metadata.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library library_imports_metadata;
-
-@m1
-import 'dart:mirrors' as mirrors;
-
-@m2
-@m3
-import 'dart:collection';
-
-import 'dart:async';
-
-const m1 = const Object();
-const m2 = const Object();
-const m3 = const Object();
diff --git a/tests/lib_2/mirrors/library_imports_metadata_test.dart b/tests/lib_2/mirrors/library_imports_metadata_test.dart
deleted file mode 100644
index 9dda1682c70..00000000000
--- a/tests/lib_2/mirrors/library_imports_metadata_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.library_imports;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-import 'stringify.dart';
-
-import 'library_imports_metadata.dart';
-
-main() {
-  LibraryMirror lib =
-      currentMirrorSystem().findLibrary(#library_imports_metadata);
-
-  LibraryMirror core = currentMirrorSystem().findLibrary(#dart.core);
-  LibraryMirror mirrors = currentMirrorSystem().findLibrary(#dart.mirrors);
-  LibraryMirror collection =
-      currentMirrorSystem().findLibrary(#dart.collection);
-  LibraryMirror async = currentMirrorSystem().findLibrary(#dart.async);
-
-  Expect.setEquals([core, mirrors, collection, async],
-      lib.libraryDependencies.map((dep) => dep.targetLibrary));
-
-  Expect.stringEquals(
-      'import dart.async\n'
-      'import dart.collection\n'
-      'import dart.core\n'
-      'import dart.mirrors as mirrors\n',
-      stringifyDependencies(lib));
-
-  Expect.listEquals(
-      [].map(reflect).toList(),
-      lib.libraryDependencies
-          .singleWhere((dep) => dep.targetLibrary == core)
-          .metadata);
-
-  Expect.listEquals(
-      [m1].map(reflect).toList(),
-      lib.libraryDependencies
-          .singleWhere((dep) => dep.targetLibrary == mirrors)
-          .metadata);
-
-  Expect.listEquals(
-      [m2, m3].map(reflect).toList(),
-      lib.libraryDependencies
-          .singleWhere((dep) => dep.targetLibrary == collection)
-          .metadata);
-
-  Expect.listEquals(
-      [].map(reflect).toList(),
-      lib.libraryDependencies
-          .singleWhere((dep) => dep.targetLibrary == async)
-          .metadata);
-}
diff --git a/tests/lib_2/mirrors/library_imports_prefixed.dart b/tests/lib_2/mirrors/library_imports_prefixed.dart
deleted file mode 100644
index 7023c6b17b7..00000000000
--- a/tests/lib_2/mirrors/library_imports_prefixed.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library library_imports_prefixed;
-
-import 'library_imports_a.dart' as prefixa;
-import 'library_imports_b.dart' as prefixb;
-
-var somethingFromPrefixed;
diff --git a/tests/lib_2/mirrors/library_imports_prefixed_show_hide.dart b/tests/lib_2/mirrors/library_imports_prefixed_show_hide.dart
deleted file mode 100644
index 0eb74283e19..00000000000
--- a/tests/lib_2/mirrors/library_imports_prefixed_show_hide.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library library_imports_prefixed_show_hide;
-
-import 'library_imports_a.dart' as prefixa show somethingFromA;
-import 'library_imports_b.dart' as prefixb hide somethingFromB;
-
-var somethingFromPrefixed;
diff --git a/tests/lib_2/mirrors/library_imports_prefixed_show_hide_test.dart b/tests/lib_2/mirrors/library_imports_prefixed_show_hide_test.dart
deleted file mode 100644
index bda5f30bff7..00000000000
--- a/tests/lib_2/mirrors/library_imports_prefixed_show_hide_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.library_imports_prefixed_show_hide;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-import 'stringify.dart';
-
-import 'library_imports_prefixed_show_hide.dart';
-
-test(MirrorSystem mirrors) {
-  LibraryMirror prefixed_show_hide =
-      mirrors.findLibrary(#library_imports_prefixed_show_hide);
-  LibraryMirror a = mirrors.findLibrary(#library_imports_a);
-  LibraryMirror b = mirrors.findLibrary(#library_imports_b);
-  LibraryMirror core = mirrors.findLibrary(#dart.core);
-
-  Expect.setEquals([a, b, core],
-      prefixed_show_hide.libraryDependencies.map((dep) => dep.targetLibrary));
-
-  Expect.stringEquals(
-      'import dart.core\n'
-      'import library_imports_a as prefixa\n'
-      ' show somethingFromA\n'
-      'import library_imports_b as prefixb\n'
-      ' hide somethingFromB\n',
-      stringifyDependencies(prefixed_show_hide));
-}
-
-main() {
-  test(currentMirrorSystem());
-}
diff --git a/tests/lib_2/mirrors/library_imports_prefixed_test.dart b/tests/lib_2/mirrors/library_imports_prefixed_test.dart
deleted file mode 100644
index a9ad0a23cc0..00000000000
--- a/tests/lib_2/mirrors/library_imports_prefixed_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.library_imports_prefixed;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-import 'stringify.dart';
-
-import 'library_imports_prefixed.dart';
-
-test(MirrorSystem mirrors) {
-  LibraryMirror prefixed = mirrors.findLibrary(#library_imports_prefixed);
-  LibraryMirror a = mirrors.findLibrary(#library_imports_a);
-  LibraryMirror b = mirrors.findLibrary(#library_imports_b);
-  LibraryMirror core = mirrors.findLibrary(#dart.core);
-
-  Expect.setEquals([a, b, core],
-      prefixed.libraryDependencies.map((dep) => dep.targetLibrary));
-
-  Expect.stringEquals(
-      'import dart.core\n'
-      'import library_imports_a as prefixa\n'
-      'import library_imports_b as prefixb\n',
-      stringifyDependencies(prefixed));
-}
-
-main() {
-  test(currentMirrorSystem());
-}
diff --git a/tests/lib_2/mirrors/library_imports_shown.dart b/tests/lib_2/mirrors/library_imports_shown.dart
deleted file mode 100644
index 8d27e8ed230..00000000000
--- a/tests/lib_2/mirrors/library_imports_shown.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library library_imports_shown;
-
-import 'library_imports_a.dart' show somethingFromA, somethingFromBoth;
-import 'library_imports_b.dart' show somethingFromB;
-
-var somethingFromShown;
diff --git a/tests/lib_2/mirrors/library_imports_shown_test.dart b/tests/lib_2/mirrors/library_imports_shown_test.dart
deleted file mode 100644
index eda6bfdea5e..00000000000
--- a/tests/lib_2/mirrors/library_imports_shown_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.library_imports_shown;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-import 'stringify.dart';
-
-import 'library_imports_shown.dart';
-
-test(MirrorSystem mirrors) {
-  LibraryMirror shown = mirrors.findLibrary(#library_imports_shown);
-  LibraryMirror a = mirrors.findLibrary(#library_imports_a);
-  LibraryMirror b = mirrors.findLibrary(#library_imports_b);
-  LibraryMirror core = mirrors.findLibrary(#dart.core);
-
-  Expect.setEquals(
-      [a, b, core], shown.libraryDependencies.map((dep) => dep.targetLibrary));
-
-  Expect.stringEquals(
-      'import dart.core\n'
-      'import library_imports_a\n'
-      ' show somethingFromA\n'
-      ' show somethingFromBoth\n'
-      'import library_imports_b\n'
-      ' show somethingFromB\n',
-      stringifyDependencies(shown));
-}
-
-main() {
-  test(currentMirrorSystem());
-}
diff --git a/tests/lib_2/mirrors/library_metadata2_lib1.dart b/tests/lib_2/mirrors/library_metadata2_lib1.dart
deleted file mode 100644
index 78d4eb3886f..00000000000
--- a/tests/lib_2/mirrors/library_metadata2_lib1.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@MyConst()
-library lib1;
-
-class MyConst {
-  const MyConst();
-}
diff --git a/tests/lib_2/mirrors/library_metadata2_lib2.dart b/tests/lib_2/mirrors/library_metadata2_lib2.dart
deleted file mode 100644
index d8e3f1e972c..00000000000
--- a/tests/lib_2/mirrors/library_metadata2_lib2.dart
+++ /dev/null
@@ -1,8 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@MyConst()
-library lib2;
diff --git a/tests/lib_2/mirrors/library_metadata2_test.dart b/tests/lib_2/mirrors/library_metadata2_test.dart
deleted file mode 100644
index 4840caf9d84..00000000000
--- a/tests/lib_2/mirrors/library_metadata2_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors';
-
-import 'library_metadata2_lib1.dart';
-
-import 'library_metadata2_lib2.dart'; //# 01: compile-time error
-
-void main() {
-  for (var library in currentMirrorSystem().libraries.values) {
-    print(library.metadata); // Processing @MyConst() in lib2 results in a
-    // delayed compilation error here.
-  }
-}
diff --git a/tests/lib_2/mirrors/library_metadata_test.dart b/tests/lib_2/mirrors/library_metadata_test.dart
deleted file mode 100644
index b898e249b5a..00000000000
--- a/tests/lib_2/mirrors/library_metadata_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@string
-@symbol
-library test.library_metadata_test;
-
-import 'dart:mirrors';
-
-import 'metadata_test.dart';
-
-main() {
-  MirrorSystem mirrors = currentMirrorSystem();
-  checkMetadata(
-      mirrors.findLibrary(#test.library_metadata_test), [string, symbol]);
-  checkMetadata(mirrors.findLibrary(#test.metadata_test), []);
-}
diff --git a/tests/lib_2/mirrors/library_metatarget_test.dart b/tests/lib_2/mirrors/library_metatarget_test.dart
deleted file mode 100644
index 683e28a415c..00000000000
--- a/tests/lib_2/mirrors/library_metatarget_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for the combined use of metatargets and library tags.
-
-library topLib;
-
-import 'library_metatarget_test_lib.dart';
-import 'library_metatarget_test_annotations_lib.dart';
-
-import 'dart:mirrors';
-
-void main() {
-  print(new A());
-}
diff --git a/tests/lib_2/mirrors/library_metatarget_test_annotations_lib.dart b/tests/lib_2/mirrors/library_metatarget_test_annotations_lib.dart
deleted file mode 100644
index 38843bc6208..00000000000
--- a/tests/lib_2/mirrors/library_metatarget_test_annotations_lib.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for the combined use of metatargets and library tags.
-
-library annotations;
-
-class UsedOnlyOnLibrary {
-  const UsedOnlyOnLibrary();
-}
-
-const usedOnlyOnLibrary = const UsedOnlyOnLibrary();
-
-class Reflectable {
-  const Reflectable();
-}
-
-const Reflectable reflectable = const Reflectable();
diff --git a/tests/lib_2/mirrors/library_metatarget_test_lib.dart b/tests/lib_2/mirrors/library_metatarget_test_lib.dart
deleted file mode 100644
index a5f52913cf0..00000000000
--- a/tests/lib_2/mirrors/library_metatarget_test_lib.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for the combined use of metatargets and library tags.
-
-@usedOnlyOnLibrary
-library subLib;
-
-import 'library_metatarget_test_annotations_lib.dart';
-
-class A {
-  @reflectable
-  var reflectableField = 1;
-  var nonreflectableField = 2;
-}
diff --git a/tests/lib_2/mirrors/library_uri_io_test.dart b/tests/lib_2/mirrors/library_uri_io_test.dart
deleted file mode 100644
index 029886ed2bc..00000000000
--- a/tests/lib_2/mirrors/library_uri_io_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test library uri for a library read as a file.
-
-library MirrorsTest;
-
-import 'dart:io';
-import 'dart:mirrors';
-
-import 'package:async_helper/async_minitest.dart';
-
-class Class {}
-
-testLibraryUri(var value, Uri expectedUri) {
-  var valueMirror = reflect(value);
-  ClassMirror valueClass = valueMirror.type;
-  LibraryMirror valueLibrary = valueClass.owner as LibraryMirror;
-  expect(valueLibrary.uri, equals(expectedUri));
-}
-
-main() {
-  var mirrors = currentMirrorSystem();
-  test("Test current library uri", () {
-    if (!Platform.script.toString().endsWith('.dart')) {
-      print("Skipping library uri test as not running from source "
-          "(Platform.script = ${Platform.script})");
-      return;
-    }
-    Uri uri = Uri.base.resolveUri(Platform.script);
-    testLibraryUri(new Class(), uri);
-  });
-}
diff --git a/tests/lib_2/mirrors/library_uri_package_test.dart b/tests/lib_2/mirrors/library_uri_package_test.dart
deleted file mode 100644
index 8f55ead6bcc..00000000000
--- a/tests/lib_2/mirrors/library_uri_package_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test library uri for a library read as a package .
-
-library MirrorsTest;
-
-import 'dart:mirrors';
-import 'package:args/args.dart';
-import 'package:async_helper/async_minitest.dart';
-
-testLibraryUri(var value, Uri expectedUri) {
-  var valueMirror = reflect(value);
-  ClassMirror valueClass = valueMirror.type;
-  LibraryMirror valueLibrary = valueClass.owner as LibraryMirror;
-  Uri uri = valueLibrary.uri;
-  if (!uri.isScheme("https") ||
-      uri.host != "dartlang.org" ||
-      uri.path != "/dart2js-stripped-uri") {
-    expect(uri, equals(expectedUri));
-  }
-}
-
-main() {
-  var mirrors = currentMirrorSystem();
-  test("Test package library uri", () {
-    testLibraryUri(
-        new ArgParser(), Uri.parse('package:args/src/arg_parser.dart'));
-  });
-}
diff --git a/tests/lib_2/mirrors/library_with_annotated_declaration.dart b/tests/lib_2/mirrors/library_with_annotated_declaration.dart
deleted file mode 100644
index 2742f715876..00000000000
--- a/tests/lib_2/mirrors/library_with_annotated_declaration.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@metadata
-library library_with_annotated_declaration;
-
-const metadata = 'metadata';
-
-class ClassInLibraryWithAnnotatedDeclaration {}
diff --git a/tests/lib_2/mirrors/library_without_declaration.dart b/tests/lib_2/mirrors/library_without_declaration.dart
deleted file mode 100644
index e6f6ee8160c..00000000000
--- a/tests/lib_2/mirrors/library_without_declaration.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// NO LIBRARY DECLARATION
-
-class ClassInLibraryWithoutDeclaration {}
diff --git a/tests/lib_2/mirrors/load_library_test.dart b/tests/lib_2/mirrors/load_library_test.dart
deleted file mode 100644
index 54f4c446697..00000000000
--- a/tests/lib_2/mirrors/load_library_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library load_library;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-import 'other_library.dart' deferred as other;
-
-main() {
-  var ms = currentMirrorSystem();
-  LibraryMirror thisLibrary = ms.findLibrary(#load_library);
-  var dep =
-      thisLibrary.libraryDependencies.singleWhere((d) => d.prefix == #other);
-  Expect.isNull(dep.targetLibrary, "should not be loaded yet");
-
-  asyncStart();
-  dep.loadLibrary().then((_) {
-    asyncEnd();
-    Expect.isNotNull(dep.targetLibrary);
-    Expect.equals(#test.other_library, dep.targetLibrary.simpleName);
-    Expect.equals(42, other.topLevelMethod());
-  });
-}
diff --git a/tests/lib_2/mirrors/local_function_is_static_test.dart b/tests/lib_2/mirrors/local_function_is_static_test.dart
deleted file mode 100644
index 957979a38ad..00000000000
--- a/tests/lib_2/mirrors/local_function_is_static_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.local_function_is_static;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-topLevel() => 1;
-topLevelLocal() => () => 2;
-
-class C {
-  static klass() => 3;
-  static klassLocal() => () => 4;
-  instance() => 5;
-  instanceLocal() => () => 6;
-}
-
-main() {
-  var f = topLevel;
-  Expect.equals(1, f());
-  Expect.isTrue((reflect(f) as ClosureMirror).function.isStatic);
-
-  f = topLevelLocal();
-  Expect.equals(2, f());
-  Expect.isTrue((reflect(f) as ClosureMirror).function.isStatic);
-
-  f = C.klass;
-  Expect.equals(3, f());
-  Expect.isTrue((reflect(f) as ClosureMirror).function.isStatic);
-
-  f = C.klassLocal();
-  Expect.equals(4, f());
-  Expect.isTrue((reflect(f) as ClosureMirror).function.isStatic);
-
-  f = new C().instance;
-  Expect.equals(5, f());
-  Expect.isFalse((reflect(f) as ClosureMirror).function.isStatic);
-
-  f = new C().instanceLocal();
-  Expect.equals(6, f());
-  Expect.isFalse((reflect(f) as ClosureMirror).function.isStatic);
-}
diff --git a/tests/lib_2/mirrors/local_isolate_test.dart b/tests/lib_2/mirrors/local_isolate_test.dart
deleted file mode 100644
index 1ef2d728e9f..00000000000
--- a/tests/lib_2/mirrors/local_isolate_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test the local IsolateMirror.
-
-library test.local_isolate_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class Foo {}
-
-void main() {
-  LibraryMirror rootLibrary = reflectClass(Foo).owner as LibraryMirror;
-  IsolateMirror isolate = currentMirrorSystem().isolate;
-  Expect.isTrue(isolate.debugName is String);
-  Expect.isTrue(isolate.isCurrent);
-  Expect.equals(rootLibrary, isolate.rootLibrary);
-}
diff --git a/tests/lib_2/mirrors/metadata_allowed_values_import.dart b/tests/lib_2/mirrors/metadata_allowed_values_import.dart
deleted file mode 100644
index 91ef426ada7..00000000000
--- a/tests/lib_2/mirrors/metadata_allowed_values_import.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class Imported {
-  const Imported();
-  const Imported.named();
-  static const CONSTANT = 0;
-}
diff --git a/tests/lib_2/mirrors/metadata_allowed_values_test.dart b/tests/lib_2/mirrors/metadata_allowed_values_test.dart
deleted file mode 100644
index 527e8b0eba8..00000000000
--- a/tests/lib_2/mirrors/metadata_allowed_values_test.dart
+++ /dev/null
@@ -1,226 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.metadata_allowed_values;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-import 'metadata_allowed_values_import.dart'; // Unprefixed.
-import 'metadata_allowed_values_import.dart' as prefix;
-
-@A // //# 01: compile-time error
-class A {}
-
-@B.CONSTANT
-class B {
-  static const CONSTANT = 3;
-}
-
-@C(3)
-class C {
-  final field;
-  const C(this.field);
-}
-
-@D.named(4)
-class D {
-  final field;
-  const D.named(this.field);
-}
-
-@E.NOT_CONSTANT // //# 02: compile-time error
-class E {
-  static var NOT_CONSTANT = 3;
-}
-
-@F(6) // //# 03: compile-time error
-class F {
-  final field;
-  F(this.field);
-}
-
-@G.named(4) // //# 04: compile-time error
-class G {
-  final field;
-  G.named(this.field);
-}
-
-@H<int>() // //# 05: compile-time error
-class H<T> {
-  const H();
-}
-
-@I[0] // //# 06: compile-time error
-class I {}
-
-@this.toString // //# 07: compile-time error
-class J {}
-
-@super.toString // //# 08: compile-time error
-class K {}
-
-@L.func() // //# 09: compile-time error
-class L {
-  static func() => 6;
-}
-
-@Imported // //# 10: compile-time error
-class M {}
-
-@Imported()
-class N {}
-
-@Imported.named()
-class O {}
-
-@Imported.CONSTANT
-class P {}
-
-@prefix.Imported // //# 11: compile-time error
-class Q {}
-
-@prefix.Imported()
-class R {}
-
-@prefix.Imported.named()
-class S {}
-
-@prefix.Imported.CONSTANT
-class T {}
-
-@U..toString() // //# 12: compile-time error
-class U {}
-
-@V.tearOff // //# 13: compile-time error
-class V {
-  static tearOff() {}
-}
-
-topLevelTearOff() => 4;
-
-@topLevelTearOff // //# 14: compile-time error
-class W {}
-
-@TypeParameter // //# 15: compile-time error
-class X<TypeParameter> {}
-
-@TypeParameter.member // //# 16: compile-time error
-class Y<TypeParameter> {}
-
-@1 // //# 17: compile-time error
-class Z {}
-
-@3.14 // //# 18: compile-time error
-class AA {}
-
-@'string' // //# 19: compile-time error
-class BB {}
-
-@#symbol // //# 20: compile-time error
-class CC {}
-
-@['element'] // //# 21: compile-time error
-class DD {}
-
-@{'key': 'value'} // //# 22: compile-time error
-class EE {}
-
-@true // //# 23: compile-time error
-class FF {}
-
-@false // //# 24: compile-time error
-class GG {}
-
-@null // //# 25: compile-time error
-class HH {}
-
-const a = const [1, 2, 3];
-
-@a
-class II {}
-
-@a[0] // //# 26: compile-time error
-class JJ {}
-
-@kk // //# 27: compile-time error
-class KK {
-  const KK();
-}
-
-get kk => const KK();
-
-@LL(() => 42) // //# 28: compile-time error
-class LL {
-  final field;
-  const LL(this.field);
-}
-
-@MM((x) => 42) // //# 29: compile-time error
-class MM {
-  final field;
-  const MM(this.field);
-}
-
-@NN(() {}) // //# 30: compile-time error
-class NN {
-  final field;
-  const NN(this.field);
-}
-
-@OO(() { () {} }) // //# 31: compile-time error
-class OO {
-  final field;
-  const OO(this.field);
-}
-
-checkMetadata(DeclarationMirror mirror, List expectedMetadata) {
-  Expect.listEquals(expectedMetadata.map(reflect).toList(), mirror.metadata);
-}
-
-main() {
-  reflectClass(A).metadata;
-  checkMetadata(reflectClass(B), [B.CONSTANT]);
-  checkMetadata(reflectClass(C), [const C(3)]);
-  checkMetadata(reflectClass(D), [const D.named(4)]);
-  reflectClass(E).metadata;
-  reflectClass(F).metadata;
-  reflectClass(G).metadata;
-  reflectClass(H).metadata;
-  reflectClass(I).metadata;
-  reflectClass(J).metadata;
-  reflectClass(K).metadata;
-  reflectClass(L).metadata;
-  reflectClass(M).metadata;
-  checkMetadata(reflectClass(N), [const Imported()]);
-  checkMetadata(reflectClass(O), [const Imported.named()]);
-  checkMetadata(reflectClass(P), [Imported.CONSTANT]);
-  reflectClass(Q).metadata;
-  checkMetadata(reflectClass(R), [const prefix.Imported()]);
-  checkMetadata(reflectClass(S), [const prefix.Imported.named()]);
-  checkMetadata(reflectClass(T), [prefix.Imported.CONSTANT]);
-  reflectClass(U).metadata;
-  reflectClass(V).metadata;
-  reflectClass(W).metadata;
-  reflectClass(X).metadata;
-  reflectClass(Y).metadata;
-  reflectClass(Z).metadata;
-  reflectClass(AA).metadata;
-  reflectClass(BB).metadata;
-  reflectClass(CC).metadata;
-  reflectClass(DD).metadata;
-  reflectClass(EE).metadata;
-  reflectClass(FF).metadata;
-  reflectClass(GG).metadata;
-  reflectClass(HH).metadata;
-  reflectClass(II).metadata;
-  reflectClass(JJ).metadata;
-  reflectClass(KK).metadata;
-  reflectClass(LL).metadata;
-  reflectClass(MM).metadata;
-  reflectClass(NN).metadata;
-  reflectClass(OO).metadata;
-}
diff --git a/tests/lib_2/mirrors/metadata_class_mirror_test.dart b/tests/lib_2/mirrors/metadata_class_mirror_test.dart
deleted file mode 100644
index f716c6e87fb..00000000000
--- a/tests/lib_2/mirrors/metadata_class_mirror_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for http://dartbug.com/19173
-
-library lib;
-
-import 'dart:mirrors';
-
-class A {
-  const A();
-}
-
-@deprecated
-const A anA = const A();
-
-main() {
-  ClassMirror typeMirror = reflectType(A) as ClassMirror;
-  var decs = typeMirror.declarations;
-  print(decs.length);
-}
diff --git a/tests/lib_2/mirrors/metadata_const_map_test.dart b/tests/lib_2/mirrors/metadata_const_map_test.dart
deleted file mode 100644
index b595925f64a..00000000000
--- a/tests/lib_2/mirrors/metadata_const_map_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 20776. Tests that the needed classes for the
-// constant map in the metadata are generated.
-
-library lib;
-
-import 'dart:mirrors';
-
-class C {
-  final x;
-  const C(this.x);
-}
-
-@C(const {'foo': 'bar'})
-class A {}
-
-main() {
-  print(reflectClass(A).metadata);
-}
diff --git a/tests/lib_2/mirrors/metadata_constructed_constant_test.dart b/tests/lib_2/mirrors/metadata_constructed_constant_test.dart
deleted file mode 100644
index 6183fabfecb..00000000000
--- a/tests/lib_2/mirrors/metadata_constructed_constant_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.metadata_constructed_constant_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class ConstructedConstant {
-  final value;
-  const ConstructedConstant(this.value);
-  toString() => 'ConstructedConstant($value)';
-}
-
-class Foo {
-  @ConstructedConstant(StateError)
-  m() {}
-}
-
-main() {
-  var m = reflectClass(Foo).declarations[#m] as MethodMirror;
-  var value = m.metadata.single.reflectee;
-  Expect.stringEquals('ConstructedConstant($StateError)', '$value');
-}
diff --git a/tests/lib_2/mirrors/metadata_constructor_arguments_test.dart b/tests/lib_2/mirrors/metadata_constructor_arguments_test.dart
deleted file mode 100644
index 92bb497a941..00000000000
--- a/tests/lib_2/mirrors/metadata_constructor_arguments_test.dart
+++ /dev/null
@@ -1,74 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for Issue 13817.
-
-library test.metadata_constructor_arguments;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-class Tag {
-  final name;
-  const Tag({named}) : this.name = named;
-}
-
-@Tag(named: undefined) // //# 01: compile-time error
-class A {}
-
-@Tag(named: 'valid')
-class B {}
-
-@Tag(named: C.STATIC_FIELD)
-class C {
-  static const STATIC_FIELD = 3;
-}
-
-@Tag(named: D.instanceMethod()) // //# 02: compile-time error
-class D {
-  instanceMethod() {}
-}
-
-@Tag(named: instanceField) // //# 03: compile-time error
-class E {
-  var instanceField;
-}
-
-@Tag(named: F.nonConstStaticField) // //# 04: compile-time error
-class F {
-  static var nonConstStaticField = 6;
-}
-
-@Tag(named: instanceMethod) // //# 05: compile-time error
-class G {
-  instanceMethod() {}
-}
-
-@Tag(named: this) // //# 06: compile-time error
-class H {
-  instanceMethod() {}
-}
-
-@Tag(named: super) // //# 07: compile-time error
-class I {
-  instanceMethod() {}
-}
-
-checkMetadata(DeclarationMirror mirror, List expectedMetadata) {
-  Expect.listEquals(expectedMetadata.map(reflect).toList(), mirror.metadata);
-}
-
-main() {
-  reflectClass(A).metadata;
-  checkMetadata(reflectClass(B), [const Tag(named: 'valid')]);
-  checkMetadata(reflectClass(C), [const Tag(named: C.STATIC_FIELD)]);
-  reflectClass(D).metadata;
-  reflectClass(E).metadata;
-  reflectClass(F).metadata;
-  reflectClass(G).metadata;
-  reflectClass(H).metadata;
-  reflectClass(I).metadata;
-}
diff --git a/tests/lib_2/mirrors/metadata_nested_constructor_call_test.dart b/tests/lib_2/mirrors/metadata_nested_constructor_call_test.dart
deleted file mode 100644
index 3f821789ddf..00000000000
--- a/tests/lib_2/mirrors/metadata_nested_constructor_call_test.dart
+++ /dev/null
@@ -1,87 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for Issue 17141.
-
-library test.metadata_nested_constructor_call;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-class Box {
-  final contents;
-  const Box([this.contents]);
-}
-
-class MutableBox {
-  var contents;
-  MutableBox([this.contents]); // Not const.
-}
-
-@Box()
-class A {}
-
-@Box(const Box())
-class B {}
-
-@Box(const Box(const Box()))
-class C {}
-
-@Box(const Box(const MutableBox())) // //# 01: compile-time error
-class D {}
-
-@Box(const MutableBox(const Box())) // //# 02: compile-time error
-class E {}
-
-@Box(Box())
-class F {}
-
-@Box(Box(const Box()))
-class G {}
-
-@Box(Box(const MutableBox())) // //# 05: compile-time error
-class H {}
-
-@Box(MutableBox(const Box())) // //# 06: compile-time error
-class I {}
-
-final closure = () => 42;
-
-@Box(closure()) // //# 07: compile-time error
-class J {}
-
-@Box(closure) // //# 08: compile-time error
-class K {}
-
-function() => 42;
-
-@Box(function()) // //# 09: compile-time error
-class L {}
-
-// N.B. This is legal, but @function is not (tested by metadata_allowed_values).
-@Box(function)
-class M {}
-
-checkMetadata(DeclarationMirror mirror, List expectedMetadata) {
-  Expect.listEquals(expectedMetadata.map(reflect).toList(), mirror.metadata);
-}
-
-main() {
-  closure();
-  checkMetadata(reflectClass(A), [const Box()]);
-  checkMetadata(reflectClass(B), [const Box(const Box())]);
-  checkMetadata(reflectClass(C), [const Box(const Box(const Box()))]);
-  reflectClass(D).metadata;
-  reflectClass(E).metadata;
-  reflectClass(F).metadata;
-  reflectClass(G).metadata;
-  reflectClass(H).metadata;
-  reflectClass(I).metadata;
-  reflectClass(J).metadata;
-  reflectClass(K).metadata;
-  reflectClass(L).metadata;
-  reflectClass(M).metadata;
-}
diff --git a/tests/lib_2/mirrors/metadata_scope_test.dart b/tests/lib_2/mirrors/metadata_scope_test.dart
deleted file mode 100644
index fec9be72936..00000000000
--- a/tests/lib_2/mirrors/metadata_scope_test.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.metadata_scope;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-class Annotation {
-  final contents;
-  const Annotation(this.contents);
-  toString() => "Annotation($contents)";
-}
-
-// Note there is no compile-time constant 'foo' in scope. In particular, A.foo
-// is not in scope here.
-@Annotation(foo) //# 01: compile-time error
-class A<
-    @Annotation(foo) //# 02: compile-time error
-        T> {
-  @Annotation(foo)
-  static foo() {}
-
-  @Annotation(foo)
-  static bar() {}
-}
-
-@Annotation(B.foo)
-class B<@Annotation(B.foo) T> {
-  @Annotation(B.foo)
-  static foo() {}
-
-  @Annotation(B.foo)
-  static bar() {}
-}
-
-baz() {}
-
-// Note the top-level function baz is in scope here, not C.baz.
-@Annotation(baz)
-class C<@Annotation(baz) T> {
-  @Annotation(baz)
-  static baz() {}
-}
-
-checkMetadata(DeclarationMirror mirror, List expectedMetadata) {
-  Expect.listEquals(expectedMetadata.map(reflect).toList(), mirror.metadata);
-}
-
-main() {
-  reflectClass(A).metadata;
-  checkMetadata(reflectClass(A).declarations[#T], [const Annotation(A.foo)]);
-  checkMetadata(reflectClass(A).declarations[#foo], [const Annotation(A.foo)]);
-  checkMetadata(reflectClass(A).declarations[#bar], [const Annotation(A.foo)]);
-  checkMetadata(reflectClass(B), [const Annotation(B.foo)]);
-  checkMetadata(reflectClass(B).declarations[#T], [const Annotation(B.foo)]);
-  checkMetadata(reflectClass(B).declarations[#foo], [const Annotation(B.foo)]);
-  checkMetadata(reflectClass(B).declarations[#bar], [const Annotation(B.foo)]);
-  // The top-level function baz, not C.baz.
-  checkMetadata(reflectClass(C), [const Annotation(baz)]);
-  // C.baz, not the top-level function baz.
-  checkMetadata(reflectClass(C).declarations[#T], [const Annotation(C.baz)]);
-  checkMetadata(reflectClass(C).declarations[#baz], [const Annotation(C.baz)]);
-}
diff --git a/tests/lib_2/mirrors/metadata_symbol_literal_test.dart b/tests/lib_2/mirrors/metadata_symbol_literal_test.dart
deleted file mode 100644
index 7f1b2c13a31..00000000000
--- a/tests/lib_2/mirrors/metadata_symbol_literal_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-class T {
-  const T(this.symbol);
-  final Symbol symbol;
-}
-
-class U {
-  @T(#x)
-  int field;
-}
-
-main() {
-  final field = reflectClass(U).declarations[#field] as VariableMirror;
-  final metadata = field.metadata;
-  Expect.identical((metadata.first.reflectee as T).symbol, const Symbol('x'));
-}
diff --git a/tests/lib_2/mirrors/metadata_test.dart b/tests/lib_2/mirrors/metadata_test.dart
deleted file mode 100644
index 2f504dd81d1..00000000000
--- a/tests/lib_2/mirrors/metadata_test.dart
+++ /dev/null
@@ -1,80 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.metadata_test;
-
-import 'dart:mirrors';
-
-const string = 'a metadata string';
-
-const symbol = const Symbol('symbol');
-
-const hest = 'hest';
-
-@symbol
-@string
-class MyClass {
-  @hest
-  @hest
-  @symbol
-  var x;
-  var y;
-
-  @string
-  @symbol
-  @string
-  myMethod() => 1;
-  myOtherMethod() => 2;
-}
-
-checkMetadata(DeclarationMirror mirror, List expectedMetadata) {
-  List metadata = mirror.metadata.map((m) => m.reflectee).toList();
-  if (metadata == null) {
-    throw 'Null metadata on $mirror';
-  }
-  int expectedLength = expectedMetadata.length;
-  int actualLength = metadata.length;
-  if (expectedLength != actualLength) {
-    throw 'Expected length = $expectedLength, but got length = $actualLength.';
-  }
-  for (int i = 0; i < expectedLength; i++) {
-    if (metadata[i] != expectedMetadata[i]) {
-      throw '${metadata[i]} is not "${expectedMetadata[i]}"'
-          ' in $mirror at index $i';
-    }
-  }
-  print(metadata);
-}
-
-@symbol
-@string
-@symbol
-main() {
-  if (MirrorSystem.getName(symbol) != 'symbol') {
-    // This happened in dart2js due to how early library metadata is
-    // computed.
-    throw 'Bad constant: $symbol';
-  }
-
-  MirrorSystem mirrors = currentMirrorSystem();
-  ClassMirror myClassMirror = reflectClass(MyClass);
-  checkMetadata(myClassMirror, [symbol, string]);
-  LibraryMirror lib = mirrors.findLibrary(#test.metadata_test);
-  MethodMirror function = lib.declarations[#main] as MethodMirror;
-  checkMetadata(function, [symbol, string, symbol]);
-  MethodMirror method = myClassMirror.declarations[#myMethod] as MethodMirror;
-  checkMetadata(method, [string, symbol, string]);
-  method = myClassMirror.declarations[#myOtherMethod] as MethodMirror;
-  checkMetadata(method, []);
-
-  VariableMirror xMirror = myClassMirror.declarations[#x] as VariableMirror;
-  checkMetadata(xMirror, [hest, hest, symbol]);
-
-  VariableMirror yMirror = myClassMirror.declarations[#y] as VariableMirror;
-  checkMetadata(yMirror, []);
-
-  // TODO(ahe): Test local functions.
-}
diff --git a/tests/lib_2/mirrors/metadata_type_literal_test.dart b/tests/lib_2/mirrors/metadata_type_literal_test.dart
deleted file mode 100644
index 37a8446c42b..00000000000
--- a/tests/lib_2/mirrors/metadata_type_literal_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-class Foo {}
-
-class Annotation {
-  final Object bindings;
-  const Annotation(this.bindings);
-}
-
-@Annotation(Foo)
-class Annotated {}
-
-main(List<String> args) {
-  ClassMirror mirror = reflectType(Annotated) as ClassMirror;
-  Expect.equals("ClassMirror on 'Annotated'", mirror.toString());
-
-  var bindings = mirror.metadata[0].reflectee.bindings;
-  Expect.equals('Foo', bindings.toString());
-}
diff --git a/tests/lib_2/mirrors/method_mirror_extension_test.dart b/tests/lib_2/mirrors/method_mirror_extension_test.dart
deleted file mode 100644
index fcc8b006704..00000000000
--- a/tests/lib_2/mirrors/method_mirror_extension_test.dart
+++ /dev/null
@@ -1,126 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib;
-
-import "dart:mirrors";
-
-import "package:expect/expect.dart";
-
-class C<T> {
-  static int tracefunc() {
-    try {
-      throw "producing a stack trace";
-    } catch (e, s) {
-      print(s);
-    }
-    return 10;
-  }
-}
-
-extension ext<T> on C<T> {
-  func() {
-    try {
-      throw "producing a stack trace";
-    } catch (e, s) {
-      print(s);
-    }
-  }
-
-  get prop {
-    try {
-      throw "producing a stack trace";
-    } catch (e, s) {
-      print(s);
-    }
-  }
-
-  set prop(value) {
-    try {
-      throw "producing a stack trace";
-    } catch (e, s) {
-      print(s);
-    }
-  }
-
-  operator +(val) {
-    try {
-      throw "producing a stack trace";
-    } catch (e, s) {
-      print(s);
-    }
-  }
-
-  operator -(val) {
-    try {
-      throw "producing a stack trace";
-    } catch (e, s) {
-      print(s);
-    }
-  }
-
-  static int sfld = C.tracefunc();
-  static sfunc() {
-    try {
-      throw "producing a stack trace";
-    } catch (e, s) {
-      print(s);
-    }
-  }
-
-  static get sprop {
-    try {
-      throw "producing a stack trace";
-    } catch (e, s) {
-      print(s);
-    }
-  }
-
-  static set sprop(value) {
-    try {
-      throw "producing a stack trace";
-    } catch (e, s) {
-      print(s);
-    }
-  }
-}
-
-checkExtensionKind(closure, kind, name) {
-  var closureMirror = reflect(closure) as ClosureMirror;
-  var methodMirror = closureMirror.function;
-  Expect.isTrue(methodMirror.simpleName.toString().contains(name));
-  Expect.equals(kind, methodMirror.isExtensionMember, "isExtension");
-}
-
-void testExtension(sym, mirror) {
-  if (mirror is MethodMirror) {
-    var methodMirror = mirror as MethodMirror;
-    if (MirrorSystem.getName(sym).startsWith('ext', 0)) {
-      Expect.equals(true, methodMirror.isExtensionMember, "isExtension");
-      Expect.isTrue(methodMirror.simpleName.toString().contains('ext.'));
-    } else {
-      Expect.equals(false, methodMirror.isExtensionMember, "isExtension");
-    }
-  } else if (mirror is VariableMirror) {
-    var variableMirror = mirror as VariableMirror;
-    if (MirrorSystem.getName(sym).startsWith('ext', 0)) {
-      Expect.equals(true, variableMirror.isExtensionMember, "isExtension");
-    } else {
-      Expect.equals(false, variableMirror.isExtensionMember, "isExtension");
-    }
-  }
-}
-
-main() {
-  checkExtensionKind(C.tracefunc, false, 'tracefunc');
-
-  C c = new C();
-  checkExtensionKind(c.func, true, 'ext.func');
-  checkExtensionKind(ext.sfunc, true, 'ext.sfunc');
-
-  var libraryMirror = reflectClass(C).owner as LibraryMirror;
-  libraryMirror.declarations.forEach(testExtension);
-}
diff --git a/tests/lib_2/mirrors/method_mirror_location_other.dart b/tests/lib_2/mirrors/method_mirror_location_other.dart
deleted file mode 100644
index 0739ff7f34f..00000000000
--- a/tests/lib_2/mirrors/method_mirror_location_other.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-part of test.method_location;
-
-class ClassInOtherFile {
-  ClassInOtherFile();
-
-  method() {}
-}
-
-topLevelInOtherFile() {}
-
-  spaceIndentedInOtherFile() {}
-
-	tabIndentedInOtherFile() {}
diff --git a/tests/lib_2/mirrors/method_mirror_location_test.dart b/tests/lib_2/mirrors/method_mirror_location_test.dart
deleted file mode 100644
index 0f6e3cd2e01..00000000000
--- a/tests/lib_2/mirrors/method_mirror_location_test.dart
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.method_location;
-
-import "dart:mirrors";
-import "package:expect/expect.dart";
-
-part 'method_mirror_location_other.dart';
-
-// We only check for a suffix of the uri because the test might be run from
-// any number of absolute paths.
-expectLocation(Mirror mirror, String uriSuffix, int line, int column) {
-  MethodMirror methodMirror;
-  if (mirror is ClosureMirror) {
-    methodMirror = mirror.function;
-  } else {
-    methodMirror = mirror as MethodMirror;
-  }
-  Expect.isTrue(methodMirror is MethodMirror);
-  final location = methodMirror.location;
-  final uri = location.sourceUri;
-  Expect.isTrue(uri.toString().endsWith(uriSuffix), "Expected suffix $uriSuffix in $uri");
-  Expect.equals(line, location.line, "line");
-  Expect.equals(column, location.column, "column");
-}
-
-class ClassInMainFile {
-
-  ClassInMainFile();
-
-  method() {}
-}
-
-void topLevelInMainFile() {}
-  spaceIndentedInMainFile() {}
-	tabIndentedInMainFile() {}
-
-class HasImplicitConstructor {}
-
-typedef bool Predicate(num n);
-
-main() {
-  localFunction(x) {
-    return x;
-  }
-
-  String mainSuffix = 'method_mirror_location_test.dart';
-  String otherSuffix = 'method_mirror_location_other.dart';
-
-  // This file.
-  expectLocation(reflectClass(ClassInMainFile).declarations[#ClassInMainFile],
-      mainSuffix, 31, 3);
-  expectLocation(
-      reflectClass(ClassInMainFile).declarations[#method], mainSuffix, 33, 3);
-  expectLocation(reflect(topLevelInMainFile), mainSuffix, 36, 1);
-  expectLocation(reflect(spaceIndentedInMainFile), mainSuffix, 37, 3);
-  expectLocation(reflect(tabIndentedInMainFile), mainSuffix, 38, 2);
-  expectLocation(reflect(localFunction), mainSuffix, 45, 3);
-
-  // Another part.
-  expectLocation(reflectClass(ClassInOtherFile).declarations[#ClassInOtherFile],
-      otherSuffix, 8, 3);
-  expectLocation(
-      reflectClass(ClassInOtherFile).declarations[#method], otherSuffix, 10, 3);
-  expectLocation(reflect(topLevelInOtherFile), otherSuffix, 13, 1);
-  expectLocation(reflect(spaceIndentedInOtherFile), otherSuffix, 15, 3);
-  expectLocation(reflect(tabIndentedInOtherFile), otherSuffix, 17, 2);
-
-  // Synthetic methods.
-  Expect.isNull(reflectClass(HasImplicitConstructor)
-      .declarations[#HasImplicitConstructor]
-      .location);
-  Expect.isNull(
-      (reflectType(Predicate) as TypedefMirror).referent.callMethod.location);
-}
diff --git a/tests/lib_2/mirrors/method_mirror_name_test.dart b/tests/lib_2/mirrors/method_mirror_name_test.dart
deleted file mode 100644
index 7db957c4778..00000000000
--- a/tests/lib_2/mirrors/method_mirror_name_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib;
-
-import "dart:mirrors";
-
-import "package:expect/expect.dart";
-import "stringify.dart";
-
-doNothing42() {}
-
-main() {
-  // Regression test for http://www.dartbug.com/6335
-  var closureMirror = reflect(doNothing42) as ClosureMirror;
-  Expect.equals(
-      stringifySymbol(closureMirror.function.simpleName), "s(doNothing42)");
-}
diff --git a/tests/lib_2/mirrors/method_mirror_properties_test.dart b/tests/lib_2/mirrors/method_mirror_properties_test.dart
deleted file mode 100644
index 870a3c28250..00000000000
--- a/tests/lib_2/mirrors/method_mirror_properties_test.dart
+++ /dev/null
@@ -1,81 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib;
-
-import "dart:mirrors";
-
-import "package:expect/expect.dart";
-
-doNothing42() {}
-
-int _x = 5;
-int get topGetter => _x;
-void set topSetter(x) {
-  _x = x;
-}
-
-abstract class AbstractC {
-  AbstractC();
-
-  void bar();
-  get priv;
-  set priv(value);
-}
-
-abstract class C extends AbstractC {
-  static foo() {}
-
-  C();
-  C.other();
-  C.other2() : this.other();
-
-  var _priv;
-  get priv => _priv;
-  set priv(value) => _priv = value;
-}
-
-checkKinds(method, kinds) {
-  Expect.equals(kinds[0], method.isStatic, "isStatic");
-  Expect.equals(kinds[1], method.isAbstract, "isAbstract");
-  Expect.equals(kinds[2], method.isGetter, "isGetter");
-  Expect.equals(kinds[3], method.isSetter, "isSetter");
-  Expect.equals(kinds[4], method.isConstructor, "isConstructor");
-  Expect.equals(false, method.isExtensionMember, "isExtension");
-}
-
-main() {
-  // Top level functions should be static.
-  var closureMirror = reflect(doNothing42) as ClosureMirror;
-  checkKinds(closureMirror.function, [true, false, false, false, false]);
-  var libraryMirror = reflectClass(C).owner as LibraryMirror;
-  checkKinds(libraryMirror.declarations[#topGetter],
-      [true, false, true, false, false]);
-  checkKinds(libraryMirror.declarations[const Symbol("topSetter=")],
-      [true, false, false, true, false]);
-  var classMirror;
-  classMirror = reflectClass(C);
-  checkKinds(
-      classMirror.declarations[#foo], [true, false, false, false, false]);
-  checkKinds(
-      classMirror.declarations[#priv], [false, false, true, false, false]);
-  checkKinds(classMirror.declarations[const Symbol("priv=")],
-      [false, false, false, true, false]);
-  checkKinds(classMirror.declarations[#C], [false, false, false, false, true]);
-  checkKinds(
-      classMirror.declarations[#C.other], [false, false, false, false, true]);
-  checkKinds(
-      classMirror.declarations[#C.other2], [false, false, false, false, true]);
-  classMirror = reflectClass(AbstractC);
-  checkKinds(
-      classMirror.declarations[#AbstractC], [false, false, false, false, true]);
-  checkKinds(
-      classMirror.declarations[#bar], [false, true, false, false, false]);
-  checkKinds(
-      classMirror.declarations[#priv], [false, true, true, false, false]);
-  checkKinds(classMirror.declarations[const Symbol("priv=")],
-      [false, true, false, true, false]);
-}
diff --git a/tests/lib_2/mirrors/method_mirror_returntype_test.dart b/tests/lib_2/mirrors/method_mirror_returntype_test.dart
deleted file mode 100644
index 0a5f38eaf57..00000000000
--- a/tests/lib_2/mirrors/method_mirror_returntype_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib;
-
-import "dart:mirrors";
-
-import "package:expect/expect.dart";
-
-void voidFunc() {}
-
-dynamicFunc1() {}
-
-dynamic dynamicFunc2() {}
-
-int intFunc() => 0;
-
-class C<E> {
-  E getE(E v) => v;
-}
-
-main() {
-  MethodMirror mm;
-
-  mm = (reflect(intFunc) as ClosureMirror).function;
-  Expect.equals(true, mm.returnType is TypeMirror);
-  Expect.equals(#int, mm.returnType.simpleName);
-  Expect.equals(true, mm.returnType.owner is LibraryMirror);
-
-  mm = (reflect(dynamicFunc1) as ClosureMirror).function;
-  Expect.equals(true, mm.returnType is TypeMirror);
-  Expect.equals(#dynamic, mm.returnType.simpleName);
-
-  mm = (reflect(dynamicFunc2) as ClosureMirror).function;
-  Expect.equals(true, mm.returnType is TypeMirror);
-  Expect.equals(#dynamic, mm.returnType.simpleName);
-
-  mm = (reflect(voidFunc) as ClosureMirror).function;
-  Expect.equals(true, mm.returnType is TypeMirror);
-  Expect.equals(const Symbol("void"), mm.returnType.simpleName);
-
-  ClassMirror cm = reflectClass(C);
-  mm = cm.declarations[#getE] as MethodMirror;
-  Expect.equals(true, mm.returnType is TypeMirror);
-  // The spec for this is ambiguous and needs to be updated before it is clear
-  // what has to be returned.
-  //Expect.equals("E", _n(mm.returnType.simpleName));
-  Expect.equals(true, mm.owner is ClassMirror);
-  Expect.equals(#C, mm.owner.simpleName);
-}
diff --git a/tests/lib_2/mirrors/method_mirror_source_line_ending_cr.dart b/tests/lib_2/mirrors/method_mirror_source_line_ending_cr.dart
deleted file mode 100755
index c79ce3bff6e..00000000000
--- a/tests/lib_2/mirrors/method_mirror_source_line_ending_cr.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Note: This test relies on CR line endings in the source file.
-
-library line_endings.cr;
-
-oneLineCR(x) => x;
-multiLineCR(y) {
-  return y + 1;
-}
-b
-(){
-}
diff --git a/tests/lib_2/mirrors/method_mirror_source_line_ending_crlf.dart b/tests/lib_2/mirrors/method_mirror_source_line_ending_crlf.dart
deleted file mode 100755
index 0190f228fd2..00000000000
--- a/tests/lib_2/mirrors/method_mirror_source_line_ending_crlf.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Note: This test relies on CRLF line endings in the source file.
-
-library line_endings.crlf;
-
-oneLineCRLF(x) => x;
-multiLineCRLF(y) {
-  return y + 1;
-}
-c
-(){
-}
diff --git a/tests/lib_2/mirrors/method_mirror_source_line_ending_lf.dart b/tests/lib_2/mirrors/method_mirror_source_line_ending_lf.dart
deleted file mode 100755
index a29352a265b..00000000000
--- a/tests/lib_2/mirrors/method_mirror_source_line_ending_lf.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Note: This test relies on LF line endings in the source file.
-
-library line_endings.lf;
-
-oneLineLF(x) => x;
-multiLineLF(y) {
-  return y + 1;
-}
-a
-(){
-}
diff --git a/tests/lib_2/mirrors/method_mirror_source_line_ending_test.dart b/tests/lib_2/mirrors/method_mirror_source_line_ending_test.dart
deleted file mode 100644
index 6798c930f0b..00000000000
--- a/tests/lib_2/mirrors/method_mirror_source_line_ending_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Note: These tests rely on specific line endings in the source files.
-
-import "dart:mirrors";
-import "package:expect/expect.dart";
-
-import "method_mirror_source_line_ending_lf.dart";
-import "method_mirror_source_line_ending_cr.dart";
-import "method_mirror_source_line_ending_crlf.dart";
-
-main() {
-  String sourceOf(Function f) => (reflect(f) as ClosureMirror).function.source;
-
-  // Source does not cross line breaks.
-  Expect.stringEquals('oneLineLF(x) => x;', sourceOf(oneLineLF));
-  Expect.stringEquals('oneLineCR(x) => x;', sourceOf(oneLineCR));
-  Expect.stringEquals('oneLineCRLF(x) => x;', sourceOf(oneLineCRLF));
-
-  // Source includes line breaks.
-  Expect.stringEquals(
-      'multiLineLF(y) {\n  return y + 1;\n}', sourceOf(multiLineLF));
-  Expect.stringEquals(
-      'multiLineCR(y) {\r  return y + 1;\r}', sourceOf(multiLineCR));
-  Expect.stringEquals(
-      'multiLineCRLF(y) {\r\n  return y + 1;\r\n}', sourceOf(multiLineCRLF));
-
-  // First and last characters separated from middle by line breaks.
-  Expect.stringEquals('a\n(){\n}', sourceOf(a));
-  Expect.stringEquals('b\r(){\r}', sourceOf(b));
-  Expect.stringEquals('c\r\n(){\r\n}', sourceOf(c));
-}
diff --git a/tests/lib_2/mirrors/method_mirror_source_other.dart b/tests/lib_2/mirrors/method_mirror_source_other.dart
deleted file mode 100644
index 8f6cfe09144..00000000000
--- a/tests/lib_2/mirrors/method_mirror_source_other.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-
-// @dart = 2.9
-main() {
-  print("Blah");
-}
-// This function must be on the first line.
-
-class SomethingInOther {}
-
-// Note: This test relies on LF line endings in the source file.
diff --git a/tests/lib_2/mirrors/method_mirror_source_test.dart b/tests/lib_2/mirrors/method_mirror_source_test.dart
deleted file mode 100644
index 4603d9cbeb4..00000000000
--- a/tests/lib_2/mirrors/method_mirror_source_test.dart
+++ /dev/null
@@ -1,112 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Note: This test relies on LF line endings in the source file.
-
-import "dart:mirrors";
-import "package:expect/expect.dart";
-import "method_mirror_source_other.dart";
-
-expectSource(Mirror mirror, String source) {
-  MethodMirror methodMirror;
-  if (mirror is ClosureMirror) {
-    methodMirror = mirror.function;
-  } else {
-    methodMirror = mirror as MethodMirror;
-  }
-  Expect.isTrue(methodMirror is MethodMirror);
-  Expect.equals(source, methodMirror.source);
-}
-
-foo1() {}
-doSomething(e) => e;
-
-int get x => 42;
-set x(value) { }
-
-class S {}
-
-class C extends S {
-
-  var _x;
-  var _y;
-
-  C(this._x, y)
-    : _y = y,
-      super();
-
-  factory C.other(num z) {}
-  factory C.other2() {}
-  factory C.other3() = C.other2;
-
-  static dynamic foo() {
-    // Happy foo.
-  }
-
-  // Some comment.
-
-  void bar() { /* Not so happy bar. */ }
-
-  num get someX =>
-    181;
-
-  set someX(v) {
-    // Discard this one.
-  }
-}
-
-
-main() {
-  // Top-level members
-  LibraryMirror lib = reflectClass(C).owner as LibraryMirror;
-  expectSource(lib.declarations[#foo1],
-      "foo1() {}");
-  expectSource(lib.declarations[#x],
-      "int get x => 42;");
-  expectSource(lib.declarations[const Symbol("x=")],
-      "set x(value) { }");
-
-  // Class members
-  ClassMirror cm = reflectClass(C);
-  expectSource(cm.declarations[#foo],
-      "static dynamic foo() {\n"
-      "    // Happy foo.\n"
-      "  }");
-  expectSource(cm.declarations[#bar],
-      "void bar() { /* Not so happy bar. */ }");
-  expectSource(cm.declarations[#someX],
-      "num get someX =>\n"
-      "    181;");
-  expectSource(cm.declarations[const Symbol("someX=")],
-      "set someX(v) {\n"
-      "    // Discard this one.\n"
-      "  }");
-  expectSource(cm.declarations[#C],
-      "C(this._x, y)\n"
-      "    : _y = y,\n"
-      "      super();");
-  expectSource(cm.declarations[#C.other],
-      "factory C.other(num z) {}");
-  expectSource(cm.declarations[#C.other3],
-      "factory C.other3() = C.other2;");
-
-  // Closures
-  expectSource(reflect((){}), "(){}");
-  expectSource(reflect((x,y,z) { return x*y*z; }), "(x,y,z) { return x*y*z; }");
-  expectSource(reflect((e) => doSomething(e)), "(e) => doSomething(e)");
-
-  namedClosure(x,y,z) => 1;
-  var a = () {};
-  expectSource(reflect(namedClosure), "namedClosure(x,y,z) => 1;");
-  expectSource(reflect(a), "() {}");
-
-  // Function at first line.
-  LibraryMirror otherLib = reflectClass(SomethingInOther).owner as LibraryMirror;
-  expectSource(otherLib.declarations[#main],
-"""main() {
-  print("Blah");
-}""");
-}
diff --git a/tests/lib_2/mirrors/mirror_in_static_init_test.dart b/tests/lib_2/mirrors/mirror_in_static_init_test.dart
deleted file mode 100644
index c88515be0da..00000000000
--- a/tests/lib_2/mirrors/mirror_in_static_init_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Error in class finalization triggered via mirror in a static initializer.
-// Simply check that we do not crash.
-// This is a regression test for the VM.
-
-library mirror_in_static_init_test;
-
-import 'dart:mirrors';
-
-// This class is only loaded during initialization of `staticField`.
-abstract class C {
-  int _a;
-  // This is a syntax error on purpose.
-  C([this._a: 0]); //# 01: compile-time error
-}
-
-final int staticField = () {
-  var lib = currentMirrorSystem().findLibrary(#mirror_in_static_init_test);
-  var c = lib.declarations[#C] as ClassMirror;
-  var lst = new List.from(c.declarations.values);
-  return 42;
-}();
-
-main() {
-  return staticField;
-}
diff --git a/tests/lib_2/mirrors/mirrors_nsm_mismatch_test.dart b/tests/lib_2/mirrors/mirrors_nsm_mismatch_test.dart
deleted file mode 100644
index 232c7be7795..00000000000
--- a/tests/lib_2/mirrors/mirrors_nsm_mismatch_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.mirrors_nsm_mismatch;
-
-import 'dart:mirrors';
-import 'mirrors_nsm_test.dart';
-
-topLevelMethod({missing}) {}
-
-class C {
-  C.constructor({missing});
-  factory C.redirecting({missing}) = C.constructor;
-  static staticMethod({missing}) {}
-  instanceMethod({missing}) {}
-}
-
-main() {
-  var mirrors = currentMirrorSystem();
-  var libMirror = mirrors.findLibrary(#test.mirrors_nsm_mismatch);
-  expectMatchingErrors(() => libMirror.invoke(#topLevelMethod, [], {#extra: 1}),
-      () => topLevelMethod(extra: 1));
-  expectMatchingErrors(() => libMirror.invoke(#topLevelMethod, ['positional']),
-      () => topLevelMethod('positional'));
-
-  var classMirror = reflectClass(C);
-  expectMatchingErrors(
-      () => classMirror.newInstance(#constructor, [], {#extra: 1}),
-      () => new C.constructor(extra: 1));
-  expectMatchingErrors(
-      () => classMirror.newInstance(#redirecting, [], {#extra: 1}),
-      () => new C.redirecting(extra: 1));
-  expectMatchingErrors(() => classMirror.invoke(#staticMethod, [], {#extra: 1}),
-      () => C.staticMethod(extra: 1));
-  expectMatchingErrors(
-      () => classMirror.newInstance(#constructor, ['positional']),
-      () => new C.constructor('positional'));
-  expectMatchingErrors(
-      () => classMirror.newInstance(#redirecting, ['positional']),
-      () => new C.redirecting('positional'));
-  expectMatchingErrors(() => classMirror.invoke(#staticMethod, ['positional']),
-      () => C.staticMethod('positional'));
-
-  var instanceMirror = reflect(new C.constructor());
-  expectMatchingErrors(
-      () => instanceMirror.invoke(#instanceMethod, [], {#extra: 1}),
-      () => instanceMirror.reflectee.instanceMethod(extra: 1));
-  expectMatchingErrors(
-      () => instanceMirror.invoke(#instanceMethod, ['positional']),
-      () => instanceMirror.reflectee.instanceMethod('positional'));
-}
diff --git a/tests/lib_2/mirrors/mirrors_nsm_test.dart b/tests/lib_2/mirrors/mirrors_nsm_test.dart
deleted file mode 100644
index 28979181cc4..00000000000
--- a/tests/lib_2/mirrors/mirrors_nsm_test.dart
+++ /dev/null
@@ -1,117 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library MirrorsTest;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-bool isNSMContainingFieldName(e, String fieldName, bool isSetter) {
-  if (e is! NoSuchMethodError) return false;
-  String needle = fieldName;
-  if (isSetter) needle += "=";
-  return "$e".contains(needle) && !"$e".contains(needle + "=");
-}
-
-final finalTopLevel = 0;
-
-class A {
-  final finalInstance = 0;
-  static final finalStatic = 0;
-}
-
-class B {
-  B(a, b);
-  factory B.fac(a, b) => new B(a, b);
-}
-
-testMessageContents() {
-  var mirrors = currentMirrorSystem();
-  var libMirror = mirrors.findLibrary(#MirrorsTest);
-  Expect.throws(() => libMirror.invoke(#foo, []),
-      (e) => isNSMContainingFieldName(e, "foo", false));
-  Expect.throws(() => libMirror.getField(#foo),
-      (e) => isNSMContainingFieldName(e, "foo", false));
-  Expect.throws(() => libMirror.setField(#foo, null),
-      (e) => isNSMContainingFieldName(e, "foo", true));
-  Expect.throws(() => libMirror.setField(#finalTopLevel, null),
-      (e) => isNSMContainingFieldName(e, "finalTopLevel", true));
-
-  var classMirror = reflectClass(A);
-  Expect.throws(() => classMirror.invoke(#foo, []),
-      (e) => isNSMContainingFieldName(e, "foo", false));
-  Expect.throws(() => classMirror.getField(#foo),
-      (e) => isNSMContainingFieldName(e, "foo", false));
-  Expect.throws(() => classMirror.setField(#foo, null),
-      (e) => isNSMContainingFieldName(e, "foo", true));
-  Expect.throws(() => classMirror.setField(#finalStatic, null),
-      (e) => isNSMContainingFieldName(e, "finalStatic", true));
-
-  var instanceMirror = reflect(new A());
-  Expect.throws(() => instanceMirror.invoke(#foo, []),
-      (e) => isNSMContainingFieldName(e, "foo", false));
-  Expect.throws(() => instanceMirror.getField(#foo),
-      (e) => isNSMContainingFieldName(e, "foo", false));
-  Expect.throws(() => instanceMirror.setField(#foo, null),
-      (e) => isNSMContainingFieldName(e, "foo", true));
-  Expect.throws(() => instanceMirror.setField(#finalInstance, null),
-      (e) => isNSMContainingFieldName(e, "finalInstance", true));
-}
-
-expectMatchingErrors(reflectiveAction, baseAction) {
-  var reflectiveError, baseError;
-  try {
-    reflectiveAction();
-  } catch (e) {
-    reflectiveError = e;
-  }
-
-  try {
-    baseAction();
-  } catch (e) {
-    baseError = e;
-  }
-
-  if (baseError.toString() != reflectiveError.toString()) {
-    print("\n==Base==\n $baseError");
-    print("\n==Reflective==\n $reflectiveError");
-    throw "Expected matching errors";
-  }
-}
-
-testMatchingMessages() {
-  var mirrors = currentMirrorSystem();
-  var libMirror = mirrors.findLibrary(#MirrorsTest);
-  expectMatchingErrors(() => libMirror.invoke(#foo, []), () => foo());
-  expectMatchingErrors(() => libMirror.getField(#foo), () => foo);
-  expectMatchingErrors(() => libMirror.setField(#foo, null), () => foo = null);
-  expectMatchingErrors(() => libMirror.setField(#finalTopLevel, null),
-      () => finalTopLevel = null);
-
-  var classMirror = reflectClass(A);
-  expectMatchingErrors(() => classMirror.invoke(#foo, []), () => A.foo());
-  expectMatchingErrors(() => classMirror.getField(#foo), () => A.foo);
-  expectMatchingErrors(
-      () => classMirror.setField(#foo, null), () => A.foo = null);
-  expectMatchingErrors(() => classMirror.setField(#finalStatic, null),
-      () => A.finalStatic = null);
-  expectMatchingErrors(() => classMirror.newInstance(#constructor, [1, 2, 3]),
-      () => new A.constructor(1, 2, 3));
-
-  var instanceMirror = reflect(new A());
-  expectMatchingErrors(
-      () => instanceMirror.invoke(#foo, []), () => new A().foo());
-  expectMatchingErrors(() => instanceMirror.getField(#foo), () => new A().foo);
-  expectMatchingErrors(
-      () => instanceMirror.setField(#foo, null), () => new A().foo = null);
-  expectMatchingErrors(() => instanceMirror.setField(#finalInstance, null),
-      () => new A().finalInstance = null);
-}
-
-main() {
-  testMessageContents();
-  testMatchingMessages(); //# dart2js: ok
-}
diff --git a/tests/lib_2/mirrors/mirrors_reader.dart b/tests/lib_2/mirrors/mirrors_reader.dart
deleted file mode 100644
index 0a9ca3616eb..00000000000
--- a/tests/lib_2/mirrors/mirrors_reader.dart
+++ /dev/null
@@ -1,262 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library mirrors.reader;
-
-import 'dart:mirrors';
-import 'mirrors_visitor.dart';
-
-class ReadError {
-  final String tag;
-  final exception;
-  final StackTrace stackTrace;
-
-  ReadError(this.tag, this.exception, this.stackTrace);
-}
-
-class MirrorsReader extends MirrorsVisitor {
-  /// Produce verbose output.
-  final bool verbose;
-
-  /// Include stack trace in the error report.
-  final bool includeStackTrace;
-
-  bool fatalError = false;
-  Set<Mirror> visited = new Set<Mirror>();
-  Set<TypeMirror> declarations = new Set<TypeMirror>();
-  Set<TypeMirror> instantiations = new Set<TypeMirror>();
-  List<ReadError> errors = <ReadError>[];
-  List<Mirror> queue = <Mirror>[];
-
-  MirrorsReader({this.verbose: false, this.includeStackTrace: false});
-
-  void checkMirrorSystem(MirrorSystem mirrorSystem) {
-    visitMirrorSystem(mirrorSystem);
-    if (!errors.isEmpty) {
-      Set<String> errorMessages = new Set<String>();
-      for (ReadError error in errors) {
-        String text = 'Mirrors read error: ${error.tag}=${error.exception}';
-        if (includeStackTrace) {
-          text = '$text\n${error.stackTrace}';
-        }
-        if (errorMessages.add(text)) {
-          print(text);
-        }
-      }
-      throw 'Unexpected errors occurred reading mirrors.';
-    }
-  }
-
-  // Skip mirrors so that each mirror is only visited once.
-  bool skipMirror(Mirror mirror) {
-    if (fatalError) return true;
-    if (mirror is TypeMirror) {
-      if (mirror.isOriginalDeclaration) {
-        // Visit the declaration once.
-        return !declarations.add(mirror);
-      } else {
-        // Visit only one instantiation.
-        return !instantiations.add(mirror.originalDeclaration);
-      }
-    }
-    return !visited.add(mirror);
-  }
-
-  reportError(var receiver, String tag, var exception, StackTrace stackTrace) {
-    String errorTag = '${receiver.runtimeType}.$tag';
-    errors.add(new ReadError(errorTag, exception, stackTrace));
-  }
-
-  visitUnsupported(var receiver, String tag, UnsupportedError exception,
-      StackTrace stackTrace) {
-    if (verbose) print('visitUnsupported:$receiver.$tag:$exception');
-    if (!expectUnsupported(receiver, tag, exception) &&
-        !allowUnsupported(receiver, tag, exception)) {
-      reportError(receiver, tag, exception, stackTrace);
-    }
-  }
-
-  /// Override to specify that access is expected to be unsupported.
-  bool expectUnsupported(
-          var receiver, String tag, UnsupportedError exception) =>
-      false;
-
-  /// Override to allow unsupported access.
-  bool allowUnsupported(var receiver, String tag, UnsupportedError exception) =>
-      false;
-
-  /// Evaluates the function [f]. Subclasses can override this to handle
-  /// specific exceptions.
-  dynamic evaluate(dynamic f) => f();
-
-  visit(var receiver, String tag, var value) {
-    if (value is Function) {
-      try {
-        var result = evaluate(value);
-        if (expectUnsupported(receiver, tag, null)) {
-          reportError(receiver, tag, 'Expected UnsupportedError.', null);
-        }
-        return visit(receiver, tag, result);
-      } on UnsupportedError catch (e, s) {
-        visitUnsupported(receiver, tag, e, s);
-      } on OutOfMemoryError catch (e, s) {
-        reportError(receiver, tag, e, s);
-        fatalError = true;
-      } on StackOverflowError catch (e, s) {
-        reportError(receiver, tag, e, s);
-        fatalError = true;
-      } catch (e, s) {
-        reportError(receiver, tag, e, s);
-      }
-    } else {
-      if (value is Mirror) {
-        if (!skipMirror(value)) {
-          if (verbose) print('visit:$receiver.$tag=$value');
-          bool drain = queue.isEmpty;
-          queue.add(value);
-          if (drain) {
-            while (!queue.isEmpty) {
-              visitMirror(queue.removeLast());
-            }
-          }
-        }
-      } else if (value is MirrorSystem) {
-        visitMirrorSystem(value);
-      } else if (value is SourceLocation) {
-        visitSourceLocation(value);
-      } else if (value is Iterable) {
-        // TODO(johnniwinther): Merge with `immutable_collections_test.dart`.
-        value.forEach((e) {
-          visit(receiver, tag, e);
-        });
-      } else if (value is Map) {
-        value.forEach((k, v) {
-          visit(receiver, tag, k);
-          visit(receiver, tag, v);
-        });
-      }
-    }
-    return value;
-  }
-
-  visitMirrorSystem(MirrorSystem mirrorSystem) {
-    visit(mirrorSystem, 'dynamicType', () => mirrorSystem.dynamicType);
-    visit(mirrorSystem, 'voidType', () => mirrorSystem.voidType);
-    visit(mirrorSystem, 'libraries', () => mirrorSystem.libraries);
-  }
-
-  visitClassMirror(ClassMirror mirror) {
-    super.visitClassMirror(mirror);
-    visit(mirror, 'declarations', () => mirror.declarations);
-    bool hasReflectedType =
-        visit(mirror, 'hasReflectedType', () => mirror.hasReflectedType);
-    visit(mirror, 'instanceMembers', () => mirror.instanceMembers);
-    visit(mirror, 'mixin', () => mirror.mixin);
-    if (hasReflectedType) {
-      visit(mirror, 'reflectedType', () => mirror.reflectedType);
-    }
-    visit(mirror, 'staticMembers', () => mirror.staticMembers);
-    visit(mirror, 'superclass', () => mirror.superclass);
-    visit(mirror, 'superinterfaces', () => mirror.superinterfaces);
-  }
-
-  visitDeclarationMirror(DeclarationMirror mirror) {
-    super.visitDeclarationMirror(mirror);
-    visit(mirror, 'isPrivate', () => mirror.isPrivate);
-    visit(mirror, 'isTopLevel', () => mirror.isTopLevel);
-    visit(mirror, 'location', () => mirror.location);
-    visit(mirror, 'metadata', () => mirror.metadata);
-    visit(mirror, 'owner', () => mirror.owner);
-    visit(mirror, 'qualifiedName', () => mirror.qualifiedName);
-    visit(mirror, 'simpleName', () => mirror.simpleName);
-  }
-
-  visitFunctionTypeMirror(FunctionTypeMirror mirror) {
-    super.visitFunctionTypeMirror(mirror);
-    visit(mirror, 'callMethod', () => mirror.callMethod);
-    visit(mirror, 'parameters', () => mirror.parameters);
-    visit(mirror, 'returnType', () => mirror.returnType);
-  }
-
-  visitInstanceMirror(InstanceMirror mirror) {
-    super.visitInstanceMirror(mirror);
-    bool hasReflectee =
-        visit(mirror, 'hasReflectee', () => mirror.hasReflectee);
-    if (hasReflectee) {
-      visit(mirror, 'reflectee', () => mirror.reflectee);
-    }
-    visit(mirror, 'type', () => mirror.type);
-  }
-
-  visitLibraryMirror(LibraryMirror mirror) {
-    super.visitLibraryMirror(mirror);
-    visit(mirror, 'declarations', () => mirror.declarations);
-    visit(mirror, 'uri', () => mirror.uri);
-  }
-
-  visitMethodMirror(MethodMirror mirror) {
-    super.visitMethodMirror(mirror);
-    visit(mirror, 'constructorName', () => mirror.constructorName);
-    visit(mirror, 'isAbstract', () => mirror.isAbstract);
-    visit(mirror, 'isConstConstructor', () => mirror.isConstConstructor);
-    visit(mirror, 'isConstructor', () => mirror.isConstructor);
-    visit(mirror, 'isFactoryConstructor', () => mirror.isFactoryConstructor);
-    visit(mirror, 'isGenerativeConstructor',
-        () => mirror.isGenerativeConstructor);
-    visit(mirror, 'isGetter', () => mirror.isGetter);
-    visit(mirror, 'isOperator', () => mirror.isOperator);
-    visit(mirror, 'isRedirectingConstructor',
-        () => mirror.isRedirectingConstructor);
-    visit(mirror, 'isRegularMethod', () => mirror.isRegularMethod);
-    visit(mirror, 'isSetter', () => mirror.isSetter);
-    visit(mirror, 'isStatic', () => mirror.isStatic);
-    visit(mirror, 'isSynthetic', () => mirror.isSynthetic);
-    visit(mirror, 'parameters', () => mirror.parameters);
-    visit(mirror, 'returnType', () => mirror.returnType);
-    visit(mirror, 'source', () => mirror.source);
-  }
-
-  visitParameterMirror(ParameterMirror mirror) {
-    super.visitParameterMirror(mirror);
-    bool hasDefaultValue =
-        visit(mirror, 'hasDefaultValue', () => mirror.hasDefaultValue);
-    if (hasDefaultValue) {
-      visit(mirror, 'defaultValue', () => mirror.defaultValue);
-    }
-    visit(mirror, 'isNamed', () => mirror.isNamed);
-    visit(mirror, 'isOptional', () => mirror.isOptional);
-    visit(mirror, 'type', () => mirror.type);
-  }
-
-  visitSourceLocation(SourceLocation location) {}
-
-  visitTypedefMirror(TypedefMirror mirror) {
-    super.visitTypedefMirror(mirror);
-    visit(mirror, 'referent', () => mirror.referent);
-  }
-
-  visitTypeMirror(TypeMirror mirror) {
-    super.visitTypeMirror(mirror);
-    visit(mirror, 'isOriginalDeclaration', () => mirror.isOriginalDeclaration);
-    visit(mirror, 'originalDeclaration', () => mirror.originalDeclaration);
-    visit(mirror, 'typeArguments', () => mirror.typeArguments);
-    visit(mirror, 'typeVariables', () => mirror.typeVariables);
-  }
-
-  visitTypeVariableMirror(TypeVariableMirror mirror) {
-    super.visitTypeVariableMirror(mirror);
-    visit(mirror, 'upperBound', () => mirror.upperBound);
-    visit(mirror, 'isStatic', () => mirror.isStatic);
-  }
-
-  visitVariableMirror(VariableMirror mirror) {
-    super.visitVariableMirror(mirror);
-    visit(mirror, 'isConst', () => mirror.isConst);
-    visit(mirror, 'isFinal', () => mirror.isFinal);
-    visit(mirror, 'isStatic', () => mirror.isStatic);
-    visit(mirror, 'type', () => mirror.type);
-  }
-}
diff --git a/tests/lib_2/mirrors/mirrors_reader_test.dart b/tests/lib_2/mirrors/mirrors_reader_test.dart
deleted file mode 100644
index ec6cbf69aac..00000000000
--- a/tests/lib_2/mirrors/mirrors_reader_test.dart
+++ /dev/null
@@ -1,72 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that everything reachable from a [MirrorSystem] can be accessed.
-
-library test.mirrors.reader;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-import 'mirrors_reader.dart';
-
-class RuntimeMirrorsReader extends MirrorsReader {
-  final MirrorSystem mirrorSystem;
-  final String mirrorSystemType;
-
-  RuntimeMirrorsReader(MirrorSystem mirrorSystem,
-      {bool verbose: false, bool includeStackTrace: false})
-      : this.mirrorSystem = mirrorSystem,
-        this.mirrorSystemType = '${mirrorSystem.runtimeType}',
-        super(verbose: verbose, includeStackTrace: includeStackTrace);
-
-  visitLibraryMirror(LibraryMirror mirror) {
-    super.visitLibraryMirror(mirror);
-    Expect.equals(mirror, mirrorSystem.libraries[mirror.uri]);
-  }
-
-  visitClassMirror(ClassMirror mirror) {
-    super.visitClassMirror(mirror);
-    Expect.isNotNull(mirror.owner);
-  }
-
-  bool allowUnsupported(var receiver, String tag, UnsupportedError exception) {
-    if (mirrorSystemType == '_MirrorSystem') {
-      // VM mirror system.
-      if (tag.endsWith('location')) {
-        return receiver is ParameterMirror;
-      }
-    } else if (mirrorSystemType == 'JsMirrorSystem') {
-      // Dart2js runtime mirror system.
-      if (tag.endsWith('.metadata')) {
-        return true; // Issue 10905.
-      }
-    }
-    return false;
-  }
-
-  bool expectUnsupported(var receiver, String tag, UnsupportedError exception) {
-    // [DeclarationMirror.location] is intentionally not supported in runtime
-    // mirrors.
-
-    if (mirrorSystemType == '_MirrorSystem') {
-      // VM mirror system.
-    } else if (mirrorSystemType == 'JsMirrorSystem') {
-      // Dart2js runtime mirror system.
-      if (receiver is DeclarationMirror && tag == 'location') {
-        return true;
-      }
-    }
-    return false;
-  }
-}
-
-void main([List<String> arguments = const <String>[]]) {
-  MirrorSystem mirrors = currentMirrorSystem();
-  MirrorsReader reader = new RuntimeMirrorsReader(mirrors,
-      verbose: arguments.contains('-v'),
-      includeStackTrace: arguments.contains('-s'));
-  reader.checkMirrorSystem(mirrors);
-}
diff --git a/tests/lib_2/mirrors/mirrors_resolve_fields_test.dart b/tests/lib_2/mirrors/mirrors_resolve_fields_test.dart
deleted file mode 100644
index ab7f95b6c8b..00000000000
--- a/tests/lib_2/mirrors/mirrors_resolve_fields_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for dart2js that used to not resolve instance
-// fields when a class is only instantiated through mirrors.
-
-library lib;
-
-import "package:expect/expect.dart";
-
-import 'dart:mirrors';
-
-class A {
-  static const int _STATE_INITIAL = 0;
-  int _state = _STATE_INITIAL;
-  A();
-}
-
-main() {
-  var mirrors = currentMirrorSystem();
-  var classMirror = reflectClass(A);
-  var instanceMirror = classMirror.newInstance(Symbol.empty, []);
-  Expect.equals(A._STATE_INITIAL, instanceMirror.reflectee._state);
-}
diff --git a/tests/lib_2/mirrors/mirrors_test.dart b/tests/lib_2/mirrors/mirrors_test.dart
deleted file mode 100644
index 9bc73a09d79..00000000000
--- a/tests/lib_2/mirrors/mirrors_test.dart
+++ /dev/null
@@ -1,249 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library MirrorsTest;
-
-import 'dart:mirrors';
-
-import 'package:expect/minitest.dart';
-
-bool isDart2js = false; // TODO(ahe): Remove this field.
-
-var topLevelField;
-u(a, b, c) => {"a": a, "b": b, "c": c};
-_v(a, b) => a + b;
-
-class Class<T> {
-  Class() {
-    this.field = "default value";
-  }
-  Class.withInitialValue(this.field);
-  var field;
-
-  Class.generative(this.field);
-  Class.redirecting(y) : this.generative(y * 2);
-  factory Class.faktory(y) => new Class.withInitialValue(y * 3);
-  factory Class.redirectingFactory(y) = Class<T>.faktory;
-
-  m(a, b, c) => {"a": a, "b": b, "c": c};
-  _n(a, b) => a + b;
-  noSuchMethod(invocation) => "DNU";
-
-  static var staticField;
-  static s(a, b, c) => {"a": a, "b": b, "c": c};
-  static _t(a, b) => a + b;
-}
-
-typedef Typedef();
-
-testInvoke(mirrors) {
-  var instance = new Class();
-  var instMirror = reflect(instance);
-
-  expect(instMirror.invoke(#m, ['A', 'B', instance]).reflectee,
-      equals({"a": 'A', "b": 'B', "c": instance}));
-  expect(instMirror.invoke(#notDefined, []).reflectee, equals("DNU"));
-  expect(instMirror.invoke(#m, []).reflectee, equals("DNU")); // Wrong arity.
-
-  var classMirror = instMirror.type;
-  expect(classMirror.invoke(#s, ['A', 'B', instance]).reflectee,
-      equals({"a": 'A', "b": 'B', "c": instance}));
-  expect(() => classMirror.invoke(#notDefined, []).reflectee, throws);
-  expect(() => classMirror.invoke(#s, []).reflectee, throws); // Wrong arity.
-
-  var libMirror = classMirror.owner as LibraryMirror;
-  expect(libMirror.invoke(#u, ['A', 'B', instance]).reflectee,
-      equals({"a": 'A', "b": 'B', "c": instance}));
-  expect(() => libMirror.invoke(#notDefined, []).reflectee, throws);
-  expect(() => libMirror.invoke(#u, []).reflectee, throws); // Wrong arity.
-}
-
-/// In dart2js, lists, numbers, and other objects are treated special
-/// and their methods are invoked through a technique called interceptors.
-testIntercepted(mirrors) {
-  {
-    var instance = 1;
-    var instMirror = reflect(instance);
-
-    expect(instMirror.invoke(#toString, []).reflectee, equals('1'));
-  }
-
-  var instance = [];
-  var instMirror = reflect(instance);
-  instMirror.setField(#length, 44);
-  var resultMirror = instMirror.getField(#length);
-  expect(resultMirror.reflectee, equals(44));
-  expect(instance.length, equals(44));
-
-  expect(
-      instMirror.invoke(#toString, []).reflectee,
-      equals('[null, null, null, null, null, null, null, null, null, null,'
-          ' null, null, null, null, null, null, null, null, null, null,'
-          ' null, null, null, null, null, null, null, null, null, null,'
-          ' null, null, null, null, null, null, null, null, null, null,'
-          ' null, null, null, null]'));
-}
-
-testFieldAccess(mirrors) {
-  var instance = new Class();
-
-  var libMirror = mirrors.findLibrary(#MirrorsTest);
-  var classMirror = libMirror.declarations[#Class];
-  var instMirror = reflect(instance);
-  var fieldMirror = classMirror.declarations[#field];
-  var future;
-
-  expect(fieldMirror is VariableMirror, isTrue);
-  expect(fieldMirror.type, equals(mirrors.dynamicType));
-
-  libMirror.setField(#topLevelField, [91]);
-  expect(libMirror.getField(#topLevelField).reflectee, equals([91]));
-  expect(topLevelField, equals([91]));
-}
-
-testClosureMirrors(mirrors) {
-  // TODO(ahe): Test optional parameters (named or not).
-  var closure = (x, y, z) {
-    return x + y + z;
-  };
-
-  var mirror = reflect(closure) as ClosureMirror;
-
-  var funcMirror = (mirror.function) as MethodMirror;
-  expect(funcMirror.parameters.length, equals(3));
-
-  expect(mirror.apply([7, 8, 9]).reflectee, equals(24));
-}
-
-testInvokeConstructor(mirrors) {
-  var classMirror = reflectClass(Class);
-
-  var instanceMirror = classMirror.newInstance(Symbol.empty, []);
-  expect(instanceMirror.reflectee is Class, equals(true));
-  expect(instanceMirror.reflectee.field, equals("default value"));
-
-  instanceMirror = classMirror.newInstance(#withInitialValue, [45]);
-  expect(instanceMirror.reflectee is Class, equals(true));
-  expect(instanceMirror.reflectee.field, equals(45));
-
-  instanceMirror = classMirror.newInstance(#generative, [7]);
-  expect(instanceMirror.reflectee is Class, equals(true));
-  expect(instanceMirror.reflectee.field, equals(7));
-
-  instanceMirror = classMirror.newInstance(#redirecting, [8]);
-  expect(instanceMirror.reflectee is Class, equals(true));
-  expect(instanceMirror.reflectee.field, equals(16));
-
-  instanceMirror = classMirror.newInstance(#faktory, [9]);
-  expect(instanceMirror.reflectee is Class, equals(true));
-  expect(instanceMirror.reflectee.field, equals(27));
-
-  instanceMirror = classMirror.newInstance(#redirectingFactory, [10]);
-  expect(instanceMirror.reflectee is Class, equals(true));
-  expect(instanceMirror.reflectee.field, equals(30));
-}
-
-testReflectClass(mirrors) {
-  var classMirror = reflectClass(Class);
-  expect(classMirror is ClassMirror, equals(true));
-  var symbolClassMirror = reflectClass(Symbol);
-  var symbolMirror =
-      symbolClassMirror.newInstance(Symbol.empty, ['withInitialValue']);
-  var objectMirror = classMirror.newInstance(symbolMirror.reflectee, [1234]);
-  expect(objectMirror.reflectee is Class, equals(true));
-  expect(objectMirror.reflectee.field, equals(1234));
-}
-
-testNames(mirrors) {
-  var libMirror = mirrors.findLibrary(#MirrorsTest);
-  var classMirror = libMirror.declarations[#Class];
-  var typedefMirror = libMirror.declarations[#Typedef];
-  var methodMirror = libMirror.declarations[#testNames];
-  var variableMirror = classMirror.declarations[#field];
-
-  expect(libMirror.simpleName, equals(#MirrorsTest));
-  expect(libMirror.qualifiedName, equals(#MirrorsTest));
-
-  expect(classMirror.simpleName, equals(#Class));
-  expect(classMirror.qualifiedName, equals(#MirrorsTest.Class));
-
-  TypeVariableMirror typeVariable = classMirror.typeVariables.single;
-  expect(typeVariable.simpleName, equals(#T));
-  expect(
-      typeVariable.qualifiedName, equals(const Symbol('MirrorsTest.Class.T')));
-
-  if (!isDart2js) {
-    // TODO(ahe): Implement this in dart2js.
-    expect(typedefMirror.simpleName, equals(#Typedef));
-    expect(typedefMirror.qualifiedName,
-        equals(const Symbol('MirrorsTest.Typedef')));
-
-    var typedefMirrorDeNovo = reflectType(Typedef);
-    expect(typedefMirrorDeNovo.simpleName, equals(#Typedef));
-    expect(typedefMirrorDeNovo.qualifiedName,
-        equals(const Symbol('MirrorsTest.Typedef')));
-  }
-
-  expect(methodMirror.simpleName, equals(#testNames));
-  expect(methodMirror.qualifiedName,
-      equals(const Symbol('MirrorsTest.testNames')));
-
-  expect(variableMirror.simpleName, equals(#field));
-  expect(variableMirror.qualifiedName,
-      equals(const Symbol('MirrorsTest.Class.field')));
-}
-
-testLibraryUri(var value, bool check(Uri uri)) {
-  var valueMirror = reflect(value);
-  ClassMirror valueClass = valueMirror.type;
-  LibraryMirror valueLibrary = valueClass.owner as LibraryMirror;
-  Uri uri = valueLibrary.uri;
-  if (!uri.isScheme("https") ||
-      uri.host != "dartlang.org" ||
-      uri.path != "/dart2js-stripped-uri") {
-    expect(check(uri), isTrue);
-  }
-}
-
-main() {
-  var mirrors = currentMirrorSystem();
-  test("Test reflective method invocation", () {
-    testInvoke(mirrors);
-  });
-  test('Test intercepted objects', () {
-    testIntercepted(mirrors);
-  });
-  test("Test field access", () {
-    testFieldAccess(mirrors);
-  });
-  test("Test closure mirrors", () {
-    testClosureMirrors(mirrors);
-  });
-  test("Test invoke constructor", () {
-    testInvokeConstructor(mirrors);
-  });
-  test("Test current library uri", () {
-    testLibraryUri(
-        new Class(),
-        // TODO(floitsch): change this to "/mirrors_test.dart" when
-        // dart2js_mirrors_test.dart has been removed.
-        (Uri uri) => uri.path.endsWith('mirrors_test.dart'));
-  });
-  test("Test dart library uri", () {
-    testLibraryUri("test", (Uri uri) {
-      if (uri == Uri.parse('dart:core')) return true;
-      // TODO(floitsch): do we want to fake the interceptors to
-      // be in dart:core?
-      return (uri == Uri.parse('dart:_interceptors'));
-    });
-  });
-  test("Test simple and qualifiedName", () {
-    testNames(mirrors);
-  });
-  test("Test reflect type", () {
-    testReflectClass(mirrors);
-  });
-}
diff --git a/tests/lib_2/mirrors/mirrors_visitor.dart b/tests/lib_2/mirrors/mirrors_visitor.dart
deleted file mode 100644
index 002df198cf5..00000000000
--- a/tests/lib_2/mirrors/mirrors_visitor.dart
+++ /dev/null
@@ -1,90 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library mirrors.visitor;
-
-import 'dart:mirrors';
-
-abstract class MirrorsVisitor {
-  visitMirror(Mirror mirror) {
-    if (mirror == null) return;
-
-    if (mirror is FunctionTypeMirror) {
-      visitFunctionTypeMirror(mirror);
-    } else if (mirror is ClassMirror) {
-      visitClassMirror(mirror);
-    } else if (mirror is TypedefMirror) {
-      visitTypedefMirror(mirror);
-    } else if (mirror is TypeVariableMirror) {
-      visitTypeVariableMirror(mirror);
-    } else if (mirror is TypeMirror) {
-      visitTypeMirror(mirror);
-    } else if (mirror is ParameterMirror) {
-      visitParameterMirror(mirror);
-    } else if (mirror is VariableMirror) {
-      visitVariableMirror(mirror);
-    } else if (mirror is MethodMirror) {
-      visitMethodMirror(mirror);
-    } else if (mirror is LibraryMirror) {
-      visitLibraryMirror(mirror);
-    } else if (mirror is InstanceMirror) {
-      visitInstanceMirror(mirror);
-    } else if (mirror is ObjectMirror) {
-      visitObjectMirror(mirror);
-    } else if (mirror is DeclarationMirror) {
-      visitDeclarationMirror(mirror);
-    } else {
-      throw new StateError(
-          'Unexpected mirror kind ${mirror.runtimeType}: $mirror');
-    }
-  }
-
-  visitClassMirror(ClassMirror mirror) {
-    visitObjectMirror(mirror);
-    visitTypeMirror(mirror);
-  }
-
-  visitDeclarationMirror(DeclarationMirror mirror) {}
-
-  visitFunctionTypeMirror(FunctionTypeMirror mirror) {
-    visitClassMirror(mirror);
-  }
-
-  visitInstanceMirror(InstanceMirror mirror) {
-    visitObjectMirror(mirror);
-  }
-
-  visitLibraryMirror(LibraryMirror mirror) {
-    visitObjectMirror(mirror);
-    visitDeclarationMirror(mirror);
-  }
-
-  visitMethodMirror(MethodMirror mirror) {
-    visitDeclarationMirror(mirror);
-  }
-
-  visitObjectMirror(ObjectMirror mirror) {}
-
-  visitParameterMirror(ParameterMirror mirror) {
-    visitVariableMirror(mirror);
-  }
-
-  visitTypedefMirror(TypedefMirror mirror) {
-    visitTypeMirror(mirror);
-  }
-
-  visitTypeMirror(TypeMirror mirror) {
-    visitDeclarationMirror(mirror);
-  }
-
-  visitTypeVariableMirror(TypeVariableMirror mirror) {
-    visitTypeMirror(mirror);
-  }
-
-  visitVariableMirror(VariableMirror mirror) {
-    visitDeclarationMirror(mirror);
-  }
-}
diff --git a/tests/lib_2/mirrors/mixin_application_test.dart b/tests/lib_2/mirrors/mixin_application_test.dart
deleted file mode 100644
index 00b389b3084..00000000000
--- a/tests/lib_2/mirrors/mixin_application_test.dart
+++ /dev/null
@@ -1,334 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This test uses the multi-test "ok" feature to create two positive tests from
-// one file. One of these tests fail on dart2js, but pass on the VM, or vice
-// versa.
-// TODO(ahe): When both implementations agree, remove the multi-test parts.
-
-library test.mixin_application_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-import 'model.dart';
-import 'stringify.dart';
-
-class Mixin {
-  int i = 0;
-  m() {}
-}
-
-class Mixin2 {
-  int i2 = 0;
-  m2() {}
-}
-
-class MixinApplication = C with Mixin;
-class MixinApplicationA = C with Mixin, Mixin2;
-
-class UnusedMixinApplication = C with Mixin;
-
-class Subclass extends C with Mixin {
-  f() {}
-}
-
-class Subclass2 extends MixinApplication {
-  g() {}
-}
-
-class SubclassA extends C with Mixin, Mixin2 {
-  fa() {}
-}
-
-class Subclass2A extends MixinApplicationA {
-  ga() {}
-}
-
-membersOf(ClassMirror cm) {
-  var result = new Map();
-  cm.declarations.forEach((k, v) {
-    if (v is MethodMirror && !v.isConstructor) result[k] = v;
-    if (v is VariableMirror) result[k] = v;
-  });
-  return result;
-}
-
-constructorsOf(ClassMirror cm) {
-  var result = new Map();
-  cm.declarations.forEach((k, v) {
-    if (v is MethodMirror && v.isConstructor) result[k] = v;
-  });
-  return result;
-}
-
-checkClass(Type type, List<String> expectedSuperclasses) {
-  int i = 0;
-  for (ClassMirror cls = reflectClass(type);
-      cls != null;
-      cls = cls.superclass) {
-    expect(expectedSuperclasses[i++], cls);
-  }
-  Expect.equals(i, expectedSuperclasses.length, '$type');
-}
-
-expectSame(ClassMirror a, ClassMirror b) {
-  Expect.equals(a, b);
-  expect(stringify(a), b);
-  expect(stringify(b), a);
-}
-
-testMixin() {
-  checkClass(Mixin, [
-    'Class(s(Mixin) in s(test.mixin_application_test), top-level)',
-    'Class(s(Object) in s(dart.core), top-level)',
-  ]);
-
-  expect(
-      '{i: Variable(s(i) in s(Mixin)),'
-      ' m: Method(s(m) in s(Mixin))}',
-      membersOf(reflectClass(Mixin)));
-
-  expect('{Mixin: Method(s(Mixin) in s(Mixin), constructor)}',
-      constructorsOf(reflectClass(Mixin)));
-}
-
-testMixin2() {
-  checkClass(Mixin2, [
-    'Class(s(Mixin2) in s(test.mixin_application_test), top-level)',
-    'Class(s(Object) in s(dart.core), top-level)',
-  ]);
-
-  expect(
-      '{i2: Variable(s(i2) in s(Mixin2)),'
-      ' m2: Method(s(m2) in s(Mixin2))}',
-      membersOf(reflectClass(Mixin2)));
-
-  expect('{Mixin2: Method(s(Mixin2) in s(Mixin2), constructor)}',
-      constructorsOf(reflectClass(Mixin2)));
-}
-
-testMixinApplication() {
-  checkClass(MixinApplication, [
-    'Class(s(MixinApplication) in s(test.mixin_application_test), top-level)',
-    'Class(s(C) in s(test.model), top-level)',
-    'Class(s(B) in s(test.model), top-level)',
-    'Class(s(A) in s(test.model), top-level)',
-    'Class(s(Object) in s(dart.core), top-level)',
-  ]);
-
-  String owner = 'Mixin';
-  expect(
-      '{i: Variable(s(i) in s($owner)),'
-      ' m: Method(s(m) in s($owner))}',
-      membersOf(reflectClass(MixinApplication)));
-
-  expect(
-      '{MixinApplication: Method(s(MixinApplication) in s(MixinApplication),'
-      ' constructor)}',
-      constructorsOf(reflectClass(MixinApplication)));
-
-  expectSame(reflectClass(C), reflectClass(MixinApplication).superclass);
-}
-
-testMixinApplicationA() {
-  String owner = ' in s(test.mixin_application_test)';
-  checkClass(MixinApplicationA, [
-    'Class(s(MixinApplicationA)'
-        ' in s(test.mixin_application_test), top-level)',
-    'Class(s(test.model.C with test.mixin_application_test.Mixin)'
-        '$owner, top-level)',
-    'Class(s(C) in s(test.model), top-level)',
-    'Class(s(B) in s(test.model), top-level)',
-    'Class(s(A) in s(test.model), top-level)',
-    'Class(s(Object) in s(dart.core), top-level)',
-  ]);
-
-  owner = 'Mixin2';
-  expect(
-      '{i2: Variable(s(i2) in s($owner)),'
-      ' m2: Method(s(m2) in s($owner))}',
-      membersOf(reflectClass(MixinApplicationA)));
-
-  expect(
-      '{MixinApplicationA: Method(s(MixinApplicationA) in s(MixinApplicationA),'
-      ' constructor)}',
-      constructorsOf(reflectClass(MixinApplicationA)));
-
-  expect(
-      '{i: Variable(s(i) in s(Mixin)),'
-      ' m: Method(s(m) in s(Mixin))}',
-      membersOf(reflectClass(MixinApplicationA).superclass));
-
-  String name = 'test.model.C with test.mixin_application_test.Mixin';
-  expect(
-      '{$name:'
-      ' Method(s($name)'
-      ' in s($name), constructor)}',
-      constructorsOf(reflectClass(MixinApplicationA).superclass));
-
-  expectSame(
-      reflectClass(C), reflectClass(MixinApplicationA).superclass.superclass);
-}
-
-testUnusedMixinApplication() {
-  checkClass(UnusedMixinApplication, [
-    'Class(s(UnusedMixinApplication) in s(test.mixin_application_test),'
-        ' top-level)',
-    'Class(s(C) in s(test.model), top-level)',
-    'Class(s(B) in s(test.model), top-level)',
-    'Class(s(A) in s(test.model), top-level)',
-    'Class(s(Object) in s(dart.core), top-level)',
-  ]);
-
-  String owner = 'Mixin';
-  expect(
-      '{i: Variable(s(i) in s($owner)),'
-      ' m: Method(s(m) in s($owner))}',
-      membersOf(reflectClass(UnusedMixinApplication)));
-
-  expect(
-      '{UnusedMixinApplication: Method(s(UnusedMixinApplication)'
-      ' in s(UnusedMixinApplication), constructor)}',
-      constructorsOf(reflectClass(UnusedMixinApplication)));
-
-  expectSame(reflectClass(C), reflectClass(UnusedMixinApplication).superclass);
-}
-
-testSubclass() {
-  String owner = ' in s(test.mixin_application_test)';
-  checkClass(Subclass, [
-    'Class(s(Subclass) in s(test.mixin_application_test), top-level)',
-    'Class(s(test.model.C with test.mixin_application_test.Mixin)'
-        '$owner, top-level)',
-    'Class(s(C) in s(test.model), top-level)',
-    'Class(s(B) in s(test.model), top-level)',
-    'Class(s(A) in s(test.model), top-level)',
-    'Class(s(Object) in s(dart.core), top-level)',
-  ]);
-
-  expect('{f: Method(s(f) in s(Subclass))}', membersOf(reflectClass(Subclass)));
-
-  expect('{Subclass: Method(s(Subclass) in s(Subclass), constructor)}',
-      constructorsOf(reflectClass(Subclass)));
-
-  expect(
-      '{i: Variable(s(i) in s(Mixin)),'
-      ' m: Method(s(m) in s(Mixin))}',
-      membersOf(reflectClass(Subclass).superclass));
-
-  String name = 'test.model.C with test.mixin_application_test.Mixin';
-  expect(
-      '{$name:'
-      ' Method(s($name)'
-      ' in s($name), constructor)}',
-      constructorsOf(reflectClass(Subclass).superclass));
-
-  expectSame(reflectClass(C), reflectClass(Subclass).superclass.superclass);
-}
-
-testSubclass2() {
-  checkClass(Subclass2, [
-    'Class(s(Subclass2) in s(test.mixin_application_test), top-level)',
-    'Class(s(MixinApplication) in s(test.mixin_application_test), top-level)',
-    'Class(s(C) in s(test.model), top-level)',
-    'Class(s(B) in s(test.model), top-level)',
-    'Class(s(A) in s(test.model), top-level)',
-    'Class(s(Object) in s(dart.core), top-level)',
-  ]);
-
-  expect(
-      '{g: Method(s(g) in s(Subclass2))}', membersOf(reflectClass(Subclass2)));
-
-  expect('{Subclass2: Method(s(Subclass2) in s(Subclass2), constructor)}',
-      constructorsOf(reflectClass(Subclass2)));
-
-  expectSame(
-      reflectClass(MixinApplication), reflectClass(Subclass2).superclass);
-}
-
-testSubclassA() {
-  String owner = ' in s(test.mixin_application_test)';
-  checkClass(SubclassA, [
-    'Class(s(SubclassA) in s(test.mixin_application_test), top-level)',
-    'Class(s(test.model.C with test.mixin_application_test.Mixin,'
-        ' test.mixin_application_test.Mixin2)$owner, top-level)',
-    'Class(s(test.model.C with test.mixin_application_test.Mixin)$owner,'
-        ' top-level)',
-    'Class(s(C) in s(test.model), top-level)',
-    'Class(s(B) in s(test.model), top-level)',
-    'Class(s(A) in s(test.model), top-level)',
-    'Class(s(Object) in s(dart.core), top-level)',
-  ]);
-
-  expect('{fa: Method(s(fa) in s(SubclassA))}',
-      membersOf(reflectClass(SubclassA)));
-
-  expect('{SubclassA: Method(s(SubclassA) in s(SubclassA), constructor)}',
-      constructorsOf(reflectClass(SubclassA)));
-
-  expect(
-      '{i2: Variable(s(i2) in s(Mixin2)),'
-      ' m2: Method(s(m2) in s(Mixin2))}',
-      membersOf(reflectClass(SubclassA).superclass));
-
-  String name = 'test.model.C with test.mixin_application_test.Mixin,'
-      ' test.mixin_application_test.Mixin2';
-  expect('{$name: Method(s($name) in s($name), constructor)}',
-      constructorsOf(reflectClass(SubclassA).superclass));
-
-  expect(
-      '{i: Variable(s(i) in s(Mixin)),'
-      ' m: Method(s(m) in s(Mixin))}',
-      membersOf(reflectClass(SubclassA).superclass.superclass));
-
-  name = 'test.model.C with test.mixin_application_test.Mixin';
-  expect(
-      '{$name:'
-      ' Method(s($name)'
-      ' in s($name), constructor)}',
-      constructorsOf(reflectClass(SubclassA).superclass.superclass));
-
-  expectSame(reflectClass(C),
-      reflectClass(SubclassA).superclass.superclass.superclass);
-}
-
-testSubclass2A() {
-  String owner = ' in s(test.mixin_application_test)';
-  checkClass(Subclass2A, [
-    'Class(s(Subclass2A) in s(test.mixin_application_test), top-level)',
-    'Class(s(MixinApplicationA) in s(test.mixin_application_test),'
-        ' top-level)',
-    'Class(s(test.model.C with test.mixin_application_test.Mixin)$owner,'
-        ' top-level)',
-    'Class(s(C) in s(test.model), top-level)',
-    'Class(s(B) in s(test.model), top-level)',
-    'Class(s(A) in s(test.model), top-level)',
-    'Class(s(Object) in s(dart.core), top-level)',
-  ]);
-
-  expect('{ga: Method(s(ga) in s(Subclass2A))}',
-      membersOf(reflectClass(Subclass2A)));
-
-  expect('{Subclass2A: Method(s(Subclass2A) in s(Subclass2A), constructor)}',
-      constructorsOf(reflectClass(Subclass2A)));
-
-  expectSame(
-      reflectClass(MixinApplicationA), reflectClass(Subclass2A).superclass);
-}
-
-main() {
-  testMixin();
-  testMixin2();
-  testMixinApplication();
-  testMixinApplicationA();
-  testUnusedMixinApplication();
-  testSubclass();
-  testSubclass2();
-  testSubclassA();
-  testSubclass2A();
-}
diff --git a/tests/lib_2/mirrors/mixin_members_test.dart b/tests/lib_2/mirrors/mixin_members_test.dart
deleted file mode 100644
index 298eb4f908b..00000000000
--- a/tests/lib_2/mirrors/mixin_members_test.dart
+++ /dev/null
@@ -1,72 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library mixin_members_test;
-
-import "dart:mirrors";
-
-import "package:expect/expect.dart";
-
-import 'stringify.dart';
-
-abstract class Fooer {
-  foo1();
-}
-
-class S implements Fooer {
-  foo1() {}
-  foo2() {}
-}
-
-class M1 {
-  bar1() {}
-  bar2() {}
-}
-
-class M2 {
-  baz1() {}
-  baz2() {}
-}
-
-class C extends S with M1, M2 {}
-
-membersOf(ClassMirror cm) {
-  var result = new Map();
-  cm.declarations.forEach((k, v) {
-    if (v is MethodMirror && !v.isConstructor) result[k] = v;
-    if (v is VariableMirror) result[k] = v;
-  });
-  return result;
-}
-
-main() {
-  ClassMirror cm = reflectClass(C);
-  ClassMirror sM1M2 = cm.superclass;
-  ClassMirror sM1 = sM1M2.superclass;
-  ClassMirror s = sM1.superclass;
-  expect('{}', membersOf(cm));
-  expect(
-      '[s(baz1), s(baz2)]',
-      // TODO(ahe): Shouldn't have to sort.
-      sort(membersOf(sM1M2).keys),
-      '(S with M1, M2).members');
-  expect('[s(M2)]', simpleNames(sM1M2.superinterfaces),
-      '(S with M1, M2).superinterfaces');
-  expect(
-      '[s(bar1), s(bar2)]',
-      // TODO(ahe): Shouldn't have to sort.
-      sort(membersOf(sM1).keys),
-      '(S with M1).members');
-  expect('[s(M1)]', simpleNames(sM1.superinterfaces),
-      '(S with M1).superinterfaces');
-  expect(
-      '[s(foo1), s(foo2)]',
-      // TODO(ahe): Shouldn't have to sort.
-      sort(membersOf(s).keys),
-      's.members');
-  expect('[s(Fooer)]', simpleNames(s.superinterfaces), 's.superinterfaces');
-  Expect.equals(s, reflectClass(S));
-}
diff --git a/tests/lib_2/mirrors/mixin_simple_test.dart b/tests/lib_2/mirrors/mixin_simple_test.dart
deleted file mode 100644
index 067b1831660..00000000000
--- a/tests/lib_2/mirrors/mixin_simple_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.mixin;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class Super {}
-
-class Mixin {}
-
-class Mixin2 {}
-
-class Class extends Super with Mixin {}
-
-class MultipleMixins extends Class with Mixin2 {}
-
-main() {
-  Expect.equals(reflectClass(Class), reflectClass(Class).mixin);
-  Expect.equals(reflectClass(Mixin), reflectClass(Class).superclass.mixin);
-  Expect.equals(
-      reflectClass(Super), reflectClass(Class).superclass.superclass.mixin);
-
-  Expect.equals(
-      reflectClass(MultipleMixins), reflectClass(MultipleMixins).mixin);
-  Expect.equals(
-      reflectClass(Mixin2), reflectClass(MultipleMixins).superclass.mixin);
-  Expect.equals(reflectClass(Class),
-      reflectClass(MultipleMixins).superclass.superclass.mixin);
-  Expect.equals(reflectClass(Mixin),
-      reflectClass(MultipleMixins).superclass.superclass.superclass.mixin);
-  Expect.equals(
-      reflectClass(Super),
-      reflectClass(MultipleMixins)
-          .superclass
-          .superclass
-          .superclass
-          .superclass
-          .mixin);
-}
diff --git a/tests/lib_2/mirrors/mixin_test.dart b/tests/lib_2/mirrors/mixin_test.dart
deleted file mode 100644
index a25bf4732b0..00000000000
--- a/tests/lib_2/mirrors/mixin_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.mixin;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class Super {}
-
-class Mixin {}
-
-class Mixin2 {}
-
-class Mixin3 {}
-
-class MixinApplication = Super with Mixin;
-
-class Class extends Super with Mixin {}
-
-class MultipleMixins extends Super with Mixin, Mixin2, Mixin3 {}
-
-main() {
-  Expect.equals(reflectClass(Mixin), reflectClass(MixinApplication).mixin);
-  Expect.equals(
-      reflectClass(Super), reflectClass(MixinApplication).superclass.mixin);
-
-  Expect.equals(reflectClass(Class), reflectClass(Class).mixin);
-  Expect.equals(reflectClass(Mixin), reflectClass(Class).superclass.mixin);
-  Expect.equals(
-      reflectClass(Super), reflectClass(Class).superclass.superclass.mixin);
-
-  Expect.equals(
-      reflectClass(MultipleMixins), reflectClass(MultipleMixins).mixin);
-  Expect.equals(
-      reflectClass(Mixin3), reflectClass(MultipleMixins).superclass.mixin);
-  Expect.equals(reflectClass(Mixin2),
-      reflectClass(MultipleMixins).superclass.superclass.mixin);
-  Expect.equals(reflectClass(Mixin),
-      reflectClass(MultipleMixins).superclass.superclass.superclass.mixin);
-  Expect.equals(
-      reflectClass(Super),
-      reflectClass(MultipleMixins)
-          .superclass
-          .superclass
-          .superclass
-          .superclass
-          .mixin);
-}
diff --git a/tests/lib_2/mirrors/model.dart b/tests/lib_2/mirrors/model.dart
deleted file mode 100644
index 611b6b1633b..00000000000
--- a/tests/lib_2/mirrors/model.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.model;
-
-var accessorA;
-
-var accessorB;
-
-var accessorC;
-
-var fieldC;
-
-class A {
-  var field;
-  instanceMethod(x) => 'A:instanceMethod($x)';
-  get accessor => 'A:get accessor';
-  set accessor(x) {
-    accessorA = x;
-  }
-
-  aMethod() => 'aMethod';
-}
-
-class B extends A {
-  get field => 'B:get field';
-  instanceMethod(x) => 'B:instanceMethod($x)';
-  get accessor => 'B:get accessor';
-  set accessor(x) {
-    accessorB = x;
-  }
-
-  bMethod() => 'bMethod';
-}
-
-class C extends B {
-  set field(x) {
-    fieldC = x;
-  }
-
-  instanceMethod(x) => 'C:instanceMethod($x)';
-  get accessor => 'C:get accessor';
-  set accessor(x) {
-    accessorC = x;
-  }
-
-  cMethod() => 'cMethod';
-}
diff --git a/tests/lib_2/mirrors/model_test.dart b/tests/lib_2/mirrors/model_test.dart
deleted file mode 100644
index 47d19870046..00000000000
--- a/tests/lib_2/mirrors/model_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.model_test;
-
-import 'package:expect/expect.dart';
-
-import 'model.dart';
-
-main() {
-  dynamic a = new A();
-  dynamic b = new B();
-  dynamic c = new C();
-
-  Expect.isNull(a.field);
-  Expect.equals('B:get field', b.field);
-  Expect.equals('B:get field', c.field);
-
-  a.field = 42;
-  b.field = 87;
-  c.field = 89;
-  Expect.equals(42, a.field);
-  Expect.equals('B:get field', b.field);
-  Expect.equals('B:get field', c.field);
-  Expect.equals(89, fieldC);
-
-  Expect.equals('A:instanceMethod(7)', a.instanceMethod(7));
-  Expect.equals('B:instanceMethod(9)', b.instanceMethod(9));
-  Expect.equals('C:instanceMethod(13)', c.instanceMethod(13));
-
-  Expect.equals('A:get accessor', a.accessor);
-  Expect.equals('B:get accessor', b.accessor);
-  Expect.equals('C:get accessor', c.accessor);
-
-  a.accessor = 'foo';
-  b.accessor = 'bar';
-  c.accessor = 'baz';
-
-  Expect.equals('foo', accessorA);
-  Expect.equals('bar', accessorB);
-  Expect.equals('baz', accessorC);
-
-  Expect.equals('aMethod', a.aMethod());
-  Expect.equals('aMethod', b.aMethod());
-  Expect.equals('aMethod', c.aMethod());
-
-  Expect.throwsNoSuchMethodError(() => a.bMethod());
-  Expect.equals('bMethod', b.bMethod());
-  Expect.equals('bMethod', c.bMethod());
-
-  Expect.throwsNoSuchMethodError(() => a.cMethod());
-  Expect.throwsNoSuchMethodError(() => b.cMethod());
-  Expect.equals('cMethod', c.cMethod());
-}
diff --git a/tests/lib_2/mirrors/new_instance_optional_arguments_test.dart b/tests/lib_2/mirrors/new_instance_optional_arguments_test.dart
deleted file mode 100644
index 72adc2b2c32..00000000000
--- a/tests/lib_2/mirrors/new_instance_optional_arguments_test.dart
+++ /dev/null
@@ -1,128 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library mirror_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class A {
-  var req1, opt1, opt2;
-  A.a0([opt1]) : this.opt1 = opt1;
-  A.b0([opt1, opt2])
-      : this.opt1 = opt1,
-        this.opt2 = opt2;
-  A.c0([opt1 = 499]) : this.opt1 = opt1;
-  A.d0([opt1 = 499, opt2 = 42])
-      : this.opt1 = opt1,
-        this.opt2 = opt2;
-  A.a1(req1, [opt1])
-      : this.req1 = req1,
-        this.opt1 = opt1;
-  A.b1(req1, [opt1, opt2])
-      : this.req1 = req1,
-        this.opt1 = opt1,
-        this.opt2 = opt2;
-  A.c1(req1, [opt1 = 499])
-      : this.req1 = req1,
-        this.opt1 = opt1;
-  A.d1(req1, [opt1 = 499, opt2 = 42])
-      : this.req1 = req1,
-        this.opt1 = opt1,
-        this.opt2 = opt2;
-}
-
-main() {
-  ClassMirror cm = reflectClass(A);
-
-  var o;
-  o = cm.newInstance(#a0, []).reflectee;
-  Expect.equals(null, o.req1);
-  Expect.equals(null, o.opt1);
-  Expect.equals(null, o.opt2);
-  o = cm.newInstance(#b0, []).reflectee;
-  Expect.equals(null, o.req1);
-  Expect.equals(null, o.opt1);
-  Expect.equals(null, o.opt2);
-  o = cm.newInstance(#c0, []).reflectee;
-  Expect.equals(null, o.req1);
-  Expect.equals(499, o.opt1);
-  Expect.equals(null, o.opt2);
-  o = cm.newInstance(#d0, []).reflectee;
-  Expect.equals(null, o.req1);
-  Expect.equals(499, o.opt1);
-  Expect.equals(42, o.opt2);
-
-  o = cm.newInstance(#a0, [77]).reflectee;
-  Expect.equals(null, o.req1);
-  Expect.equals(77, o.opt1);
-  Expect.equals(null, o.opt2);
-  o = cm.newInstance(#b0, [77]).reflectee;
-  Expect.equals(null, o.req1);
-  Expect.equals(77, o.opt1);
-  Expect.equals(null, o.opt2);
-  o = cm.newInstance(#c0, [77]).reflectee;
-  Expect.equals(null, o.req1);
-  Expect.equals(77, o.opt1);
-  Expect.equals(null, o.opt2);
-  o = cm.newInstance(#d0, [77]).reflectee;
-  Expect.equals(null, o.req1);
-  Expect.equals(77, o.opt1);
-  Expect.equals(42, o.opt2);
-
-  o = cm.newInstance(#b0, [77, 11]).reflectee;
-  Expect.equals(null, o.req1);
-  Expect.equals(77, o.opt1);
-  Expect.equals(11, o.opt2);
-  o = cm.newInstance(#d0, [77, 11]).reflectee;
-  Expect.equals(null, o.req1);
-  Expect.equals(77, o.opt1);
-  Expect.equals(11, o.opt2);
-
-  o = cm.newInstance(#a1, [123]).reflectee;
-  Expect.equals(123, o.req1);
-  Expect.equals(null, o.opt1);
-  Expect.equals(null, o.opt2);
-  o = cm.newInstance(#b1, [123]).reflectee;
-  Expect.equals(123, o.req1);
-  Expect.equals(null, o.opt1);
-  Expect.equals(null, o.opt2);
-  o = cm.newInstance(#c1, [123]).reflectee;
-  Expect.equals(123, o.req1);
-  Expect.equals(499, o.opt1);
-  Expect.equals(null, o.opt2);
-  o = cm.newInstance(#d1, [123]).reflectee;
-  Expect.equals(123, o.req1);
-  Expect.equals(499, o.opt1);
-  Expect.equals(42, o.opt2);
-
-  o = cm.newInstance(#a1, [123, 77]).reflectee;
-  Expect.equals(123, o.req1);
-  Expect.equals(77, o.opt1);
-  Expect.equals(null, o.opt2);
-  o = cm.newInstance(#b1, [123, 77]).reflectee;
-  Expect.equals(123, o.req1);
-  Expect.equals(77, o.opt1);
-  Expect.equals(null, o.opt2);
-  o = cm.newInstance(#c1, [123, 77]).reflectee;
-  Expect.equals(123, o.req1);
-  Expect.equals(77, o.opt1);
-  Expect.equals(null, o.opt2);
-  o = cm.newInstance(#d1, [123, 77]).reflectee;
-  Expect.equals(123, o.req1);
-  Expect.equals(77, o.opt1);
-  Expect.equals(42, o.opt2);
-
-  o = cm.newInstance(#b1, [123, 77, 11]).reflectee;
-  Expect.equals(123, o.req1);
-  Expect.equals(77, o.opt1);
-  Expect.equals(11, o.opt2);
-  o = cm.newInstance(#d1, [123, 77, 11]).reflectee;
-  Expect.equals(123, o.req1);
-  Expect.equals(77, o.opt1);
-  Expect.equals(11, o.opt2);
-}
diff --git a/tests/lib_2/mirrors/new_instance_with_type_arguments_test.dart b/tests/lib_2/mirrors/new_instance_with_type_arguments_test.dart
deleted file mode 100644
index f7a9c564913..00000000000
--- a/tests/lib_2/mirrors/new_instance_with_type_arguments_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.new_instance_with_type_arguments_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class A<T> {
-  Type get t => T;
-}
-
-class B extends A<int> {}
-
-class C<S> extends A<num> {
-  Type get s => S;
-}
-
-main() {
-  ClassMirror cmA = reflectClass(A);
-  ClassMirror cmB = reflectClass(B);
-  ClassMirror cmC = reflectClass(C);
-
-  dynamic a_int = new A<int>();
-  dynamic a_dynamic = new A();
-  dynamic b = new B();
-  dynamic c_string = new C<String>();
-  dynamic c_dynamic = new C();
-
-  Expect.equals(int, a_int.t);
-  Expect.equals(dynamic, a_dynamic.t);
-  Expect.equals(int, b.t);
-  Expect.equals(num, c_string.t);
-  Expect.equals(num, c_dynamic.t);
-
-  Expect.equals(String, c_string.s);
-  Expect.equals(dynamic, c_dynamic.s);
-
-  dynamic reflective_a_int =
-      cmB.superclass.newInstance(Symbol.empty, []).reflectee;
-  dynamic reflective_a_dynamic = cmA.newInstance(Symbol.empty, []).reflectee;
-  dynamic reflective_b = cmB.newInstance(Symbol.empty, []).reflectee;
-  dynamic reflective_c_dynamic = cmC.newInstance(Symbol.empty, []).reflectee;
-
-  Expect.equals(int, reflective_a_int.t);
-  Expect.equals(dynamic, reflective_a_dynamic.t);
-  Expect.equals(int, reflective_b.t);
-  Expect.equals(num, c_string.t);
-  Expect.equals(num, reflective_c_dynamic.t);
-
-  Expect.equals(String, c_string.s);
-  Expect.equals(dynamic, reflective_c_dynamic.s);
-
-  Expect.equals(a_int.runtimeType, reflective_a_int.runtimeType);
-  Expect.equals(a_dynamic.runtimeType, reflective_a_dynamic.runtimeType);
-  Expect.equals(b.runtimeType, reflective_b.runtimeType);
-  Expect.equals(c_dynamic.runtimeType, reflective_c_dynamic.runtimeType);
-}
diff --git a/tests/lib_2/mirrors/no_metadata_test.dart b/tests/lib_2/mirrors/no_metadata_test.dart
deleted file mode 100644
index 1280974f934..00000000000
--- a/tests/lib_2/mirrors/no_metadata_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors';
-
-import 'stringify.dart';
-
-class Foo {}
-
-main() {
-  expect('[]', reflectClass(Foo).metadata);
-}
diff --git a/tests/lib_2/mirrors/null2_test.dart b/tests/lib_2/mirrors/null2_test.dart
deleted file mode 100644
index a1ccee88ffe..00000000000
--- a/tests/lib_2/mirrors/null2_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.null_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-main() {
-  InstanceMirror nullMirror = reflect(null);
-  for (int i = 0; i < 10; i++) {
-    Expect.isTrue(nullMirror.getField(#hashCode).reflectee is int);
-  }
-}
diff --git a/tests/lib_2/mirrors/null_test.dart b/tests/lib_2/mirrors/null_test.dart
deleted file mode 100644
index 9db0b896d04..00000000000
--- a/tests/lib_2/mirrors/null_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--optimization-counter-threshold=90
-
-import "dart:mirrors";
-import "package:expect/expect.dart";
-
-void main() {
-  for (int i = 0; i < 100; i++) {
-    test();
-  }
-}
-
-void test() {
-  ClassMirror cm = reflectClass(Null);
-
-  InstanceMirror im1 = reflect(null);
-  Expect.equals(cm, im1.type);
-  Expect.isTrue(im1.invoke(const Symbol("=="), [null]).reflectee);
-  Expect.isFalse(im1.invoke(const Symbol("=="), [42]).reflectee);
-
-  var obj = confuse(null); // Null value that isn't known at compile-time.
-  InstanceMirror im2 = reflect(obj);
-  Expect.equals(cm, im2.type);
-  Expect.isTrue(im2.invoke(const Symbol("=="), [null]).reflectee);
-  Expect.isFalse(im2.invoke(const Symbol("=="), [42]).reflectee);
-
-  InstanceMirror nullMirror = reflect(null);
-  Expect.isTrue(nullMirror.getField(#hashCode).reflectee is int);
-  Expect.equals(null.hashCode, nullMirror.getField(#hashCode).reflectee);
-  Expect.equals('Null', nullMirror.getField(#runtimeType).reflectee.toString());
-  Expect.isTrue(nullMirror.invoke(#==, [null]).reflectee);
-  Expect.isFalse(nullMirror.invoke(#==, [new Object()]).reflectee);
-  Expect.equals('null', nullMirror.invoke(#toString, []).reflectee);
-  Expect.throwsNoSuchMethodError(
-      () => nullMirror.invoke(#notDefined, []), 'noSuchMethod');
-
-  ClassMirror NullMirror = nullMirror.type;
-  Expect.equals(reflectClass(Null), NullMirror);
-  Expect.equals(#Null, NullMirror.simpleName);
-  Expect.equals(#Object, NullMirror.superclass.simpleName);
-  Expect.equals(null, NullMirror.superclass.superclass);
-  Expect.listEquals([], NullMirror.superinterfaces);
-  Map<Uri, LibraryMirror> libraries = currentMirrorSystem().libraries;
-  LibraryMirror coreLibrary = libraries[Uri.parse('dart:core')];
-  if (coreLibrary == null) {
-    // In minified mode we don't preserve the URIs.
-    coreLibrary = libraries.values
-        .firstWhere((LibraryMirror lm) => lm.simpleName == #dart.core);
-    Uri uri = coreLibrary.uri;
-    Expect.equals("https", uri.scheme);
-    Expect.equals("dartlang.org", uri.host);
-    Expect.equals("/dart2js-stripped-uri", uri.path);
-  }
-  Expect.equals(coreLibrary, NullMirror.owner);
-}
-
-// Magic incantation to avoid the compiler recognizing the constant values
-// at compile time. If the result is computed at compile time, the dynamic code
-// will not be tested.
-confuse(x) {
-  try {
-    if (new DateTime.now().millisecondsSinceEpoch == 42) x = 42;
-    throw [x];
-  } catch (e) {
-    return e[0];
-  }
-  return 42;
-}
diff --git a/tests/lib_2/mirrors/operator_test.dart b/tests/lib_2/mirrors/operator_test.dart
deleted file mode 100644
index 0a77b5fa17e..00000000000
--- a/tests/lib_2/mirrors/operator_test.dart
+++ /dev/null
@@ -1,142 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Test operators.
-library test.operator_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-import 'stringify.dart';
-
-class Foo {
-  Foo operator ~() {}
-  Foo operator -() {}
-
-  bool operator ==(a) {}
-  Foo operator [](int a) {}
-  Foo operator *(Foo a) {}
-  Foo operator /(Foo a) {}
-  Foo operator %(Foo a) {}
-  Foo operator ~/(Foo a) {}
-  Foo operator +(Foo a) {}
-  Foo operator <<(Foo a) {}
-  Foo operator >>(Foo a) {}
-  Foo operator >=(Foo a) {}
-  Foo operator >(Foo a) {}
-  Foo operator <=(Foo a) {}
-  Foo operator <(Foo a) {}
-  Foo operator &(Foo a) {}
-  Foo operator ^(Foo a) {}
-  Foo operator |(Foo a) {}
-  Foo operator -(Foo a) {}
-
-  // TODO(ahe): use void when dart2js reifies that type.
-  operator []=(int a, Foo b) {}
-}
-
-void main() {
-  ClassMirror cls = reflectClass(Foo);
-  var operators = new Map<Symbol, MethodMirror>();
-  var operatorParameters = new Map<Symbol, List>();
-  var returnTypes = new Map<Symbol, Mirror>();
-  for (var method in cls.declarations.values) {
-    if (method is MethodMirror) {
-      if (!method.isConstructor) {
-        Expect.isTrue(method.isRegularMethod);
-        Expect.isTrue(method.isOperator);
-        Expect.isFalse(method.isGetter);
-        Expect.isFalse(method.isSetter);
-        Expect.isFalse(method.isAbstract);
-        operators[method.simpleName] = method;
-        operatorParameters[method.simpleName] = method.parameters;
-        returnTypes[method.simpleName] = method.returnType;
-      }
-    }
-  }
-  expect(OPERATORS, operators);
-  expect(PARAMETERS, operatorParameters);
-  expect(RETURN_TYPES, returnTypes);
-}
-
-const String OPERATORS = '{'
-    '%: Method(s(%) in s(Foo)), '
-    '&: Method(s(&) in s(Foo)), '
-    '*: Method(s(*) in s(Foo)), '
-    '+: Method(s(+) in s(Foo)), '
-    '-: Method(s(-) in s(Foo)), '
-    '/: Method(s(/) in s(Foo)), '
-    '<: Method(s(<) in s(Foo)), '
-    '<<: Method(s(<<) in s(Foo)), '
-    '<=: Method(s(<=) in s(Foo)), '
-    '==: Method(s(==) in s(Foo)), '
-    '>: Method(s(>) in s(Foo)), '
-    '>=: Method(s(>=) in s(Foo)), '
-    '>>: Method(s(>>) in s(Foo)), '
-    '[]: Method(s([]) in s(Foo)), '
-    '[]=: Method(s([]=) in s(Foo)), '
-    '^: Method(s(^) in s(Foo)), '
-    'unary-: Method(s(unary-) in s(Foo)), '
-    '|: Method(s(|) in s(Foo)), '
-    '~: Method(s(~) in s(Foo)), '
-    '~/: Method(s(~/) in s(Foo))'
-    '}';
-
-const String DYNAMIC = 'Type(s(dynamic), top-level)';
-
-const String FOO = 'Class(s(Foo) in s(test.operator_test), top-level)';
-
-const String INT = 'Class(s(int) in s(dart.core), top-level)';
-
-const String BOOL = 'Class(s(bool) in s(dart.core), top-level)';
-
-const String PARAMETERS = '{'
-    '%: [Parameter(s(a) in s(%), type = $FOO)], '
-    '&: [Parameter(s(a) in s(&), type = $FOO)], '
-    '*: [Parameter(s(a) in s(*), type = $FOO)], '
-    '+: [Parameter(s(a) in s(+), type = $FOO)], '
-    '-: [Parameter(s(a) in s(-), type = $FOO)], '
-    '/: [Parameter(s(a) in s(/), type = $FOO)], '
-    '<: [Parameter(s(a) in s(<), type = $FOO)], '
-    '<<: [Parameter(s(a) in s(<<), type = $FOO)], '
-    '<=: [Parameter(s(a) in s(<=), type = $FOO)], '
-    '==: [Parameter(s(a) in s(==), type = $DYNAMIC)], '
-    '>: [Parameter(s(a) in s(>), type = $FOO)], '
-    '>=: [Parameter(s(a) in s(>=), type = $FOO)], '
-    '>>: [Parameter(s(a) in s(>>), type = $FOO)], '
-    '[]: [Parameter(s(a) in s([]), type = $INT)], '
-    '[]=: [Parameter(s(a) in s([]=), type = $INT), '
-    'Parameter(s(b) in s([]=), type = $FOO)], '
-    '^: [Parameter(s(a) in s(^), type = $FOO)], '
-    'unary-: [], '
-    '|: [Parameter(s(a) in s(|), type = $FOO)], '
-    '~: [], '
-    '~/: [Parameter(s(a) in s(~/), type = $FOO)]'
-    '}';
-
-const String RETURN_TYPES = '{'
-    '%: $FOO, '
-    '&: $FOO, '
-    '*: $FOO, '
-    '+: $FOO, '
-    '-: $FOO, '
-    '/: $FOO, '
-    '<: $FOO, '
-    '<<: $FOO, '
-    '<=: $FOO, '
-    '==: $BOOL, '
-    '>: $FOO, '
-    '>=: $FOO, '
-    '>>: $FOO, '
-    '[]: $FOO, '
-    '[]=: $DYNAMIC, '
-    '^: $FOO, '
-    'unary-: $FOO, '
-    '|: $FOO, '
-    '~: $FOO, '
-    '~/: $FOO'
-    '}';
diff --git a/tests/lib_2/mirrors/optional_parameters_test.dart b/tests/lib_2/mirrors/optional_parameters_test.dart
deleted file mode 100644
index 3647ef75bdf..00000000000
--- a/tests/lib_2/mirrors/optional_parameters_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for http://dartbug.com/22987.
-// Ensure that functions whose signature only differs in optionality of
-// parameters are reflected correctly.
-
-library optional_parameter_test;
-
-import "dart:mirrors";
-import 'package:expect/expect.dart';
-
-class A {
-  foo(int x) => x;
-}
-
-class B {
-  foo([int x = -1]) => x + 1;
-}
-
-main() {
-  var x = {};
-  x["A"] = reflect(new A());
-  x["B"] = reflect(new B());
-
-  Expect.equals(1, x["A"].invoke(#foo, [1]).reflectee);
-  Expect.equals(2, x["B"].invoke(#foo, [1]).reflectee);
-}
diff --git a/tests/lib_2/mirrors/other_declarations_location_test.dart b/tests/lib_2/mirrors/other_declarations_location_test.dart
deleted file mode 100644
index 123ab86317f..00000000000
--- a/tests/lib_2/mirrors/other_declarations_location_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.declarations_location;
-
-import "dart:mirrors";
-import "package:expect/expect.dart";
-import "library_without_declaration.dart";
-import "library_with_annotated_declaration.dart";
-
-const metadata = 'metadata';
-
-class C<S, @metadata T> {
-  var a;
-  final b = 2;
-  static var c;
-  static final d = 4;
-  @metadata
-  var e;
-  List<C> f;
-}
-
-// We only check for a suffix of the uri because the test might be run from
-// any number of absolute paths.
-expectLocation(
-    DeclarationMirror mirror, String uriSuffix, int line, int column) {
-  SourceLocation location = mirror.location;
-  Uri uri = location.sourceUri;
-  Expect.isTrue(
-      uri.toString().endsWith(uriSuffix), "Expected suffix $uriSuffix in $uri");
-  Expect.equals(line, location.line, "line");
-  Expect.equals(column, location.column, "column");
-}
-
-main() {
-  String mainSuffix = 'other_declarations_location_test.dart';
-
-  // Fields.
-  expectLocation(reflectClass(C).declarations[#a], mainSuffix, 15, 7);
-  expectLocation(reflectClass(C).declarations[#b], mainSuffix, 16, 9);
-  expectLocation(reflectClass(C).declarations[#c], mainSuffix, 17, 14);
-  expectLocation(reflectClass(C).declarations[#d], mainSuffix, 18, 16);
-  expectLocation(reflectClass(C).declarations[#e], mainSuffix, 20, 7);
-  expectLocation(reflectClass(C).declarations[#f], mainSuffix, 21, 11);
-
-  // Type variables.
-  expectLocation(reflectClass(C).declarations[#S], mainSuffix, 14, 9);
-  expectLocation(reflectClass(C).declarations[#T], mainSuffix, 14, 12);
-
-  // Libraries.
-  expectLocation(reflectClass(C).owner, mainSuffix, 5, 1);
-  expectLocation(reflectClass(ClassInLibraryWithoutDeclaration).owner,
-      "library_without_declaration.dart", 1, 1);
-  expectLocation(reflectClass(ClassInLibraryWithAnnotatedDeclaration).owner,
-      "library_with_annotated_declaration.dart", 5, 1);
-}
diff --git a/tests/lib_2/mirrors/other_library.dart b/tests/lib_2/mirrors/other_library.dart
deleted file mode 100644
index baf8c38ef89..00000000000
--- a/tests/lib_2/mirrors/other_library.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.other_library;
-
-topLevelMethod() => 42;
-get topLevelGetter => 42;
-set topLevelSetter(x) => 42;
-var topLevelField = 42;
-
-_topLevelMethod() => 42;
-get _topLevelGetter => 42;
-set _topLevelSetter(x) => 42;
-var _topLevelField = 42;
diff --git a/tests/lib_2/mirrors/parameter_abstract_test.dart b/tests/lib_2/mirrors/parameter_abstract_test.dart
deleted file mode 100644
index d43fd1d53fd..00000000000
--- a/tests/lib_2/mirrors/parameter_abstract_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-import 'stringify.dart';
-
-const X = 'X';
-const Y = 'Y';
-const Z = 'Z';
-
-abstract class C {
-  foo1({@X int x: 1, @Y int y: 2, @Z int z: 3});
-}
-
-main() {
-  ClassMirror cm = reflectClass(C);
-
-  MethodMirror foo1 = cm.declarations[#foo1] as MethodMirror;
-  expect('Method(s(foo1) in s(C), abstract)', foo1);
-  expect(
-      'Parameter(s(x) in s(foo1), optional, named, type = Class(s(int) in s(dart.core), top-level))',
-      foo1.parameters[0]);
-  expect(
-      'Parameter(s(y) in s(foo1), optional, named, type = Class(s(int) in s(dart.core), top-level))',
-      foo1.parameters[1]);
-  expect(
-      'Parameter(s(z) in s(foo1), optional, named, type = Class(s(int) in s(dart.core), top-level))',
-      foo1.parameters[2]);
-}
diff --git a/tests/lib_2/mirrors/parameter_annotation_mirror_test.dart b/tests/lib_2/mirrors/parameter_annotation_mirror_test.dart
deleted file mode 100644
index a2184507052..00000000000
--- a/tests/lib_2/mirrors/parameter_annotation_mirror_test.dart
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:mirrors";
-
-import 'package:expect/expect.dart';
-
-class ParameterAnnotation {
-  final String value;
-  const ParameterAnnotation(this.value);
-}
-
-class Foo {
-  Foo(@ParameterAnnotation("vogel") p) {}
-  Foo.named(@ParameterAnnotation("hamster") p) {}
-  Foo.named2(
-      @ParameterAnnotation("hamster") p, @ParameterAnnotation("wurm") p2) {}
-
-  f1(@ParameterAnnotation("hest") p) {}
-  f2(@ParameterAnnotation("hest") @ParameterAnnotation("fisk") p) {}
-  f3(a, @ParameterAnnotation("fugl") p) {}
-  f4(@ParameterAnnotation("fisk") a, {@ParameterAnnotation("hval") p}) {}
-  f5(@ParameterAnnotation("fisk") a, [@ParameterAnnotation("hval") p]) {}
-  f6({@ParameterAnnotation("fisk") z, @ParameterAnnotation("hval") p}) {}
-
-  set s1(@ParameterAnnotation("cheval") p) {}
-}
-
-expectAnnotations(
-    Type type, Symbol method, int parameterIndex, List<String> expectedValues) {
-  MethodMirror mirror = reflectClass(type).declarations[method] as MethodMirror;
-  ParameterMirror parameter = mirror.parameters[parameterIndex];
-  List<InstanceMirror> annotations = parameter.metadata;
-  Expect.equals(annotations.length, expectedValues.length,
-      "wrong number of parameter annotations");
-  for (int i = 0; i < annotations.length; i++) {
-    Expect.equals(
-        expectedValues[i],
-        annotations[i].reflectee.value,
-        "annotation #$i of parameter #$parameterIndex "
-        "of $type.$method.");
-  }
-}
-
-main() {
-  expectAnnotations(Foo, #Foo, 0, ["vogel"]);
-  expectAnnotations(Foo, #Foo.named, 0, ["hamster"]);
-  expectAnnotations(Foo, #Foo.named2, 0, ["hamster"]);
-  expectAnnotations(Foo, #Foo.named2, 1, ["wurm"]);
-
-  expectAnnotations(Foo, #f1, 0, ["hest"]);
-  expectAnnotations(Foo, #f2, 0, ["hest", "fisk"]);
-  expectAnnotations(Foo, #f3, 0, []);
-  expectAnnotations(Foo, #f3, 1, ["fugl"]);
-  expectAnnotations(Foo, #f4, 0, ["fisk"]);
-  expectAnnotations(Foo, #f4, 1, ["hval"]);
-  expectAnnotations(Foo, #f5, 0, ["fisk"]);
-  expectAnnotations(Foo, #f5, 1, ["hval"]);
-  expectAnnotations(Foo, #f6, 0, ["fisk"]);
-  expectAnnotations(Foo, #f6, 1, ["hval"]);
-
-  expectAnnotations(Foo, const Symbol('s1='), 0, ["cheval"]);
-}
diff --git a/tests/lib_2/mirrors/parameter_is_const_test.dart b/tests/lib_2/mirrors/parameter_is_const_test.dart
deleted file mode 100644
index d1a12a19c25..00000000000
--- a/tests/lib_2/mirrors/parameter_is_const_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.parameter_is_const;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class Class {
-  foo(
-  const //# 01: compile-time error
-      param) {}
-}
-
-main() {
-  MethodMirror mm = reflectClass(Class).declarations[#foo] as MethodMirror;
-  Expect.isFalse(mm.parameters.single.isConst);
-}
diff --git a/tests/lib_2/mirrors/parameter_metadata_test.dart b/tests/lib_2/mirrors/parameter_metadata_test.dart
deleted file mode 100644
index 0c6472efae6..00000000000
--- a/tests/lib_2/mirrors/parameter_metadata_test.dart
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.parameter_metadata_test;
-
-import 'dart:mirrors';
-
-import 'metadata_test.dart';
-
-const m1 = 'm1';
-const m2 = #m2;
-const m3 = const CustomAnnotation(3);
-
-class CustomAnnotation {
-  final value;
-  const CustomAnnotation(this.value);
-  toString() => 'CustomAnnotation($value)';
-}
-
-class B {
-  B.foo(int x) {}
-  factory B.bar(@m3 @m2 int z, x) {}
-
-  baz(@m1 final int x, @m2 int y, @m3 final int z) {}
-  qux(int x, [@m3 @m2 @m1 int y = 3 + 1]) {}
-  quux(int x, {String str: "foo"}) {}
-  corge({@m1 int x: 3 * 17, @m2 String str: "bar"}) {}
-
-  set x(@m2 final value) {}
-}
-
-main() {
-  ClassMirror cm = reflectClass(B);
-  MethodMirror mm;
-
-  mm = cm.declarations[#B.foo] as MethodMirror;
-  checkMetadata(mm.parameters[0], []);
-
-  mm = cm.declarations[#B.bar] as MethodMirror;
-  checkMetadata(mm.parameters[0], [m3, m2]);
-  checkMetadata(mm.parameters[1], []);
-
-  mm = cm.declarations[#baz] as MethodMirror;
-  checkMetadata(mm.parameters[0], [m1]);
-  checkMetadata(mm.parameters[1], [m2]);
-  checkMetadata(mm.parameters[2], [m3]);
-
-  mm = cm.declarations[#qux] as MethodMirror;
-  checkMetadata(mm.parameters[0], []);
-  checkMetadata(mm.parameters[1], [m3, m2, m1]);
-
-  mm = cm.declarations[#quux] as MethodMirror;
-  checkMetadata(mm.parameters[0], []);
-  checkMetadata(mm.parameters[1], []);
-
-  mm = cm.declarations[#corge] as MethodMirror;
-  checkMetadata(mm.parameters[0], [m1]);
-  checkMetadata(mm.parameters[1], [m2]);
-
-  mm = cm.declarations[const Symbol('x=')] as MethodMirror;
-  checkMetadata(mm.parameters[0], [m2]);
-}
diff --git a/tests/lib_2/mirrors/parameter_of_mixin_app_constructor_test.dart b/tests/lib_2/mirrors/parameter_of_mixin_app_constructor_test.dart
deleted file mode 100644
index edb19eee028..00000000000
--- a/tests/lib_2/mirrors/parameter_of_mixin_app_constructor_test.dart
+++ /dev/null
@@ -1,109 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.parameter_of_mixin_app_constructor;
-
-import 'dart:mirrors';
-import 'stringify.dart';
-
-class MapView {
-  final _map;
-  MapView(map) : this._map = map;
-}
-
-abstract class UnmodifiableMapMixin {
-  someFunctionality() {}
-}
-
-class UnmodifiableMapView1 extends MapView with UnmodifiableMapMixin {
-  UnmodifiableMapView1(map1) : super(map1);
-}
-
-class UnmodifiableMapView2 = MapView with UnmodifiableMapMixin;
-
-class S {
-  S(int p1, String p2);
-}
-
-class M1 {}
-
-class M2 {}
-
-class M3 {}
-
-class MorePlumbing = S with M1, M2, M3;
-
-soleConstructorOf(ClassMirror cm) {
-  return cm.declarations.values
-      .where((dm) => dm is MethodMirror && dm.isConstructor)
-      .single;
-}
-
-main() {
-  ClassMirror umv1 = reflectClass(UnmodifiableMapView1);
-  expect(
-      '[Parameter(s(map1) in s(UnmodifiableMapView1),'
-      ' type = Type(s(dynamic), top-level))]',
-      soleConstructorOf(umv1).parameters);
-  expect(
-      '[Parameter(s(map) in s(test.parameter_of_mixin_app_constructor.MapView'
-      ' with test.parameter_of_mixin_app_constructor.UnmodifiableMapMixin),'
-      ' final, type = Type(s(dynamic), top-level))]',
-      soleConstructorOf(umv1.superclass).parameters);
-  expect(
-      '[Parameter(s(map) in s(MapView),'
-      ' type = Type(s(dynamic), top-level))]',
-      soleConstructorOf(umv1.superclass.superclass).parameters);
-  expect('[]',
-      soleConstructorOf(umv1.superclass.superclass.superclass).parameters);
-
-  ClassMirror umv2 = reflectClass(UnmodifiableMapView2);
-  expect(
-      '[Parameter(s(map) in s(UnmodifiableMapView2),'
-      ' final, type = Type(s(dynamic), top-level))]',
-      soleConstructorOf(umv2).parameters);
-  expect(
-      '[Parameter(s(map) in s(MapView),'
-      ' type = Type(s(dynamic), top-level))]',
-      soleConstructorOf(umv2.superclass).parameters);
-  expect('[]', soleConstructorOf(umv2.superclass.superclass).parameters);
-
-  ClassMirror mp = reflectClass(MorePlumbing);
-  expect(
-      '[Parameter(s(p1) in s(MorePlumbing),'
-      ' final, type = Type(s(dynamic), top-level)),'
-      ' Parameter(s(p2) in s(MorePlumbing),'
-      ' final, type = Type(s(dynamic), top-level))]',
-      soleConstructorOf(mp).parameters);
-  expect(
-      '[Parameter(s(p1) in s(test.parameter_of_mixin_app_constructor.S'
-      ' with test.parameter_of_mixin_app_constructor.M1,'
-      ' test.parameter_of_mixin_app_constructor.M2),'
-      ' final, type = Type(s(dynamic), top-level)),'
-      ' Parameter(s(p2) in s(test.parameter_of_mixin_app_constructor.S'
-      ' with test.parameter_of_mixin_app_constructor.M1,'
-      ' test.parameter_of_mixin_app_constructor.M2),'
-      ' final, type = Type(s(dynamic), top-level))]',
-      soleConstructorOf(mp.superclass).parameters);
-  expect(
-      '[Parameter(s(p1) in s(test.parameter_of_mixin_app_constructor.S'
-      ' with test.parameter_of_mixin_app_constructor.M1),'
-      ' final, type = Type(s(dynamic), top-level)),'
-      ' Parameter(s(p2) in s(test.parameter_of_mixin_app_constructor.S'
-      ' with test.parameter_of_mixin_app_constructor.M1),'
-      ' final, type = Type(s(dynamic), top-level))]',
-      soleConstructorOf(mp.superclass.superclass).parameters);
-  expect(
-      '[Parameter(s(p1) in s(S),'
-      ' type = Class(s(int) in s(dart.core), top-level)),'
-      ' Parameter(s(p2) in s(S),'
-      ' type = Class(s(String) in s(dart.core), top-level))]',
-      soleConstructorOf(mp.superclass.superclass.superclass).parameters);
-  expect(
-      '[]',
-      soleConstructorOf(mp.superclass.superclass.superclass.superclass)
-          .parameters);
-}
diff --git a/tests/lib_2/mirrors/parameter_optional_order_test.dart b/tests/lib_2/mirrors/parameter_optional_order_test.dart
deleted file mode 100644
index fda3f80a536..00000000000
--- a/tests/lib_2/mirrors/parameter_optional_order_test.dart
+++ /dev/null
@@ -1,109 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-import 'stringify.dart';
-
-const X = 'X';
-const Y = 'Y';
-const Z = 'Z';
-
-class C {
-  positional1(u, v, w, [@X int x = 1, @Y int y = 2, @Z int z = 3]) {}
-  positional2(u, v, w, [@Y int y = 1, @Z int z = 2, @X int x = 3]) {}
-  positional3(u, v, w, [@Z int z = 1, @X int x = 2, @Y int y = 3]) {}
-
-  named1(u, v, w, {@X int x: 1, @Y int y: 2, @Z int z: 3}) {}
-  named2(u, v, w, {@Y int y: 1, @Z int z: 2, @X int x: 3}) {}
-  named3(u, v, w, {@Z int z: 1, @X int x: 2, @Y int y: 3}) {}
-}
-
-testPositional() {
-  ClassMirror cm = reflectClass(C);
-
-  MethodMirror positional1 = cm.declarations[#positional1] as MethodMirror;
-  expect('Method(s(positional1) in s(C))', positional1);
-  expect(
-      'Parameter(s(x) in s(positional1), optional, value = Instance(value = 1), type = Class(s(int) in s(dart.core), top-level))',
-      positional1.parameters[3]);
-  expect(
-      'Parameter(s(y) in s(positional1), optional, value = Instance(value = 2), type = Class(s(int) in s(dart.core), top-level))',
-      positional1.parameters[4]);
-  expect(
-      'Parameter(s(z) in s(positional1), optional, value = Instance(value = 3), type = Class(s(int) in s(dart.core), top-level))',
-      positional1.parameters[5]);
-
-  MethodMirror positional2 = cm.declarations[#positional2] as MethodMirror;
-  expect('Method(s(positional2) in s(C))', positional2);
-  expect(
-      'Parameter(s(y) in s(positional2), optional, value = Instance(value = 1), type = Class(s(int) in s(dart.core), top-level))',
-      positional2.parameters[3]);
-  expect(
-      'Parameter(s(z) in s(positional2), optional, value = Instance(value = 2), type = Class(s(int) in s(dart.core), top-level))',
-      positional2.parameters[4]);
-  expect(
-      'Parameter(s(x) in s(positional2), optional, value = Instance(value = 3), type = Class(s(int) in s(dart.core), top-level))',
-      positional2.parameters[5]);
-
-  MethodMirror positional3 = cm.declarations[#positional3] as MethodMirror;
-  expect('Method(s(positional3) in s(C))', positional3);
-  expect(
-      'Parameter(s(z) in s(positional3), optional, value = Instance(value = 1), type = Class(s(int) in s(dart.core), top-level))',
-      positional3.parameters[3]);
-  expect(
-      'Parameter(s(x) in s(positional3), optional, value = Instance(value = 2), type = Class(s(int) in s(dart.core), top-level))',
-      positional3.parameters[4]);
-  expect(
-      'Parameter(s(y) in s(positional3), optional, value = Instance(value = 3), type = Class(s(int) in s(dart.core), top-level))',
-      positional3.parameters[5]);
-}
-
-testNamed() {
-  ClassMirror cm = reflectClass(C);
-
-  MethodMirror named1 = cm.declarations[#named1] as MethodMirror;
-  expect('Method(s(named1) in s(C))', named1);
-  expect(
-      'Parameter(s(x) in s(named1), optional, named, value = Instance(value = 1), type = Class(s(int) in s(dart.core), top-level))',
-      named1.parameters[3]);
-  expect(
-      'Parameter(s(y) in s(named1), optional, named, value = Instance(value = 2), type = Class(s(int) in s(dart.core), top-level))',
-      named1.parameters[4]);
-  expect(
-      'Parameter(s(z) in s(named1), optional, named, value = Instance(value = 3), type = Class(s(int) in s(dart.core), top-level))',
-      named1.parameters[5]);
-
-  MethodMirror named2 = cm.declarations[#named2] as MethodMirror;
-  expect('Method(s(named2) in s(C))', named2);
-  expect(
-      'Parameter(s(y) in s(named2), optional, named, value = Instance(value = 1), type = Class(s(int) in s(dart.core), top-level))',
-      named2.parameters[3]);
-  expect(
-      'Parameter(s(z) in s(named2), optional, named, value = Instance(value = 2), type = Class(s(int) in s(dart.core), top-level))',
-      named2.parameters[4]);
-  expect(
-      'Parameter(s(x) in s(named2), optional, named, value = Instance(value = 3), type = Class(s(int) in s(dart.core), top-level))',
-      named2.parameters[5]);
-
-  MethodMirror named3 = cm.declarations[#named3] as MethodMirror;
-  expect('Method(s(named3) in s(C))', named3);
-  expect(
-      'Parameter(s(z) in s(named3), optional, named, value = Instance(value = 1), type = Class(s(int) in s(dart.core), top-level))',
-      named3.parameters[3]);
-  expect(
-      'Parameter(s(x) in s(named3), optional, named, value = Instance(value = 2), type = Class(s(int) in s(dart.core), top-level))',
-      named3.parameters[4]);
-  expect(
-      'Parameter(s(y) in s(named3), optional, named, value = Instance(value = 3), type = Class(s(int) in s(dart.core), top-level))',
-      named3.parameters[5]);
-}
-
-main() {
-  testPositional();
-  testNamed();
-}
diff --git a/tests/lib_2/mirrors/parameter_test.dart b/tests/lib_2/mirrors/parameter_test.dart
deleted file mode 100644
index fe1b77aa08a..00000000000
--- a/tests/lib_2/mirrors/parameter_test.dart
+++ /dev/null
@@ -1,192 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This tests uses the multi-test "ok" feature:
-// none: Desired behaviour, passing on the VM.
-// 01: Trimmed version for dart2js.
-//
-// TODO(rmacnak,ahe): Remove multi-test when VM and dart2js are on par.
-
-/** Test of [ParameterMirror]. */
-library test.parameter_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-import 'stringify.dart';
-
-class B {
-  B();
-  B.foo(int x);
-  B.bar(int z, x);
-
-  // TODO(6490): Currently only supported by the VM.
-  B.baz(final int x, int y, final int z);
-  B.qux(int x, [int y = 3 + 1]);
-  B.quux(int x, {String str: "foo"});
-  B.corge({int x: 3 * 17, String str: "bar"});
-
-  var _x;
-  get x => _x;
-  set x(final value) {
-    _x = value;
-  }
-
-  grault([int x = 0]) {}
-  garply({int y = 0}) {}
-  waldo(int z) {}
-}
-
-class C<S extends int, T> {
-  // TODO(6490): Currently only supported by the VM.
-  foo(int a, S b) => b;
-  bar(S a, T b, num c) {}
-}
-
-main() {
-  ClassMirror cm = reflectClass(B);
-  var constructors = new Map<Symbol, MethodMirror>();
-  cm.declarations.forEach((k, v) {
-    if (v is MethodMirror && v.isConstructor) constructors[k] = v;
-  });
-
-  List<Symbol> constructorKeys = [
-    #B,
-    #B.bar,
-    #B.baz,
-    #B.foo,
-    #B.quux,
-    #B.qux,
-    #B.corge
-  ];
-  Expect.setEquals(constructorKeys, constructors.keys);
-
-  MethodMirror unnamedConstructor = constructors[#B] as MethodMirror;
-  expect('Method(s(B) in s(B), constructor)', unnamedConstructor);
-  expect('[]', unnamedConstructor.parameters);
-  expect('Class(s(B) in s(test.parameter_test), top-level)',
-      unnamedConstructor.returnType);
-
-  MethodMirror fooConstructor = constructors[#B.foo] as MethodMirror;
-  expect('Method(s(B.foo) in s(B), constructor)', fooConstructor);
-  expect(
-      '[Parameter(s(x) in s(B.foo),'
-      ' type = Class(s(int) in s(dart.core), top-level))]',
-      fooConstructor.parameters);
-  expect('Class(s(B) in s(test.parameter_test), top-level)',
-      fooConstructor.returnType);
-
-  MethodMirror barConstructor = constructors[#B.bar] as MethodMirror;
-  expect('Method(s(B.bar) in s(B), constructor)', barConstructor);
-  expect(
-      '[Parameter(s(z) in s(B.bar),'
-      ' type = Class(s(int) in s(dart.core), top-level)), '
-      'Parameter(s(x) in s(B.bar),'
-      ' type = Type(s(dynamic), top-level))]',
-      barConstructor.parameters);
-  expect('Class(s(B) in s(test.parameter_test), top-level)',
-      barConstructor.returnType);
-
-  // dart2js stops testing here.
-  return; // //# 01: ok
-
-  MethodMirror bazConstructor = constructors[#B.baz] as MethodMirror;
-  expect('Method(s(B.baz) in s(B), constructor)', bazConstructor);
-  expect(
-      '[Parameter(s(x) in s(B.baz), final,'
-      ' type = Class(s(int) in s(dart.core), top-level)), '
-      'Parameter(s(y) in s(B.baz),'
-      ' type = Class(s(int) in s(dart.core), top-level)), '
-      'Parameter(s(z) in s(B.baz), final,'
-      ' type = Class(s(int) in s(dart.core), top-level))]',
-      bazConstructor.parameters);
-  expect('Class(s(B) in s(test.parameter_test), top-level)',
-      bazConstructor.returnType);
-
-  MethodMirror quxConstructor = constructors[#B.qux] as MethodMirror;
-  expect('Method(s(B.qux) in s(B), constructor)', quxConstructor);
-  expect(
-      '[Parameter(s(x) in s(B.qux),'
-      ' type = Class(s(int) in s(dart.core), top-level)), '
-      'Parameter(s(y) in s(B.qux), optional,'
-      ' value = Instance(value = 4),'
-      ' type = Class(s(int) in s(dart.core), top-level))]',
-      quxConstructor.parameters);
-  expect('Class(s(B) in s(test.parameter_test), top-level)',
-      quxConstructor.returnType);
-
-  MethodMirror quuxConstructor = constructors[#B.quux] as MethodMirror;
-  expect('Method(s(B.quux) in s(B), constructor)', quuxConstructor);
-  expect(
-      '[Parameter(s(x) in s(B.quux),'
-      ' type = Class(s(int) in s(dart.core), top-level)), '
-      'Parameter(s(str) in s(B.quux), optional, named,'
-      ' value = Instance(value = foo),'
-      ' type = Class(s(String) in s(dart.core), top-level))]',
-      quuxConstructor.parameters);
-  expect('Class(s(B) in s(test.parameter_test), top-level)',
-      quuxConstructor.returnType);
-
-  MethodMirror corgeConstructor = constructors[#B.corge] as MethodMirror;
-  expect('Method(s(B.corge) in s(B), constructor)', corgeConstructor);
-  expect(
-      '[Parameter(s(x) in s(B.corge), optional, named,'
-      ' value = Instance(value = 51),'
-      ' type = Class(s(int) in s(dart.core), top-level)), '
-      'Parameter(s(str) in s(B.corge), optional, named,'
-      ' value = Instance(value = bar),'
-      ' type = Class(s(String) in s(dart.core), top-level))]',
-      corgeConstructor.parameters);
-  expect('Class(s(B) in s(test.parameter_test), top-level)',
-      corgeConstructor.returnType);
-
-  MethodMirror xGetter = cm.declarations[#x] as MethodMirror;
-  expect('Method(s(x) in s(B), getter)', xGetter);
-  expect('[]', xGetter.parameters);
-
-  MethodMirror xSetter = cm.declarations[const Symbol('x=')] as MethodMirror;
-  expect('Method(s(x=) in s(B), setter)', xSetter);
-  expect(
-      '[Parameter(s(value) in s(x=), final,'
-      ' type = Type(s(dynamic), top-level))]',
-      xSetter.parameters);
-
-  MethodMirror grault = cm.declarations[#grault] as MethodMirror;
-  expect('Method(s(grault) in s(B))', grault);
-  expect(
-      '[Parameter(s(x) in s(grault), optional, value = Instance(value = 0),'
-      ' type = Class(s(int) in s(dart.core), top-level))]',
-      grault.parameters);
-  expect('Instance(value = 0)', grault.parameters[0].defaultValue);
-
-  MethodMirror garply = cm.declarations[#garply] as MethodMirror;
-  expect('Method(s(garply) in s(B))', garply);
-  expect(
-      '[Parameter(s(y) in s(garply), optional, named, value = Instance(value = 0),'
-      ' type = Class(s(int) in s(dart.core), top-level))]',
-      garply.parameters);
-  expect('Instance(value = 0)', garply.parameters[0].defaultValue);
-
-  MethodMirror waldo = cm.declarations[#waldo] as MethodMirror;
-  expect('Method(s(waldo) in s(B))', waldo);
-  expect(
-      '[Parameter(s(z) in s(waldo),'
-      ' type = Class(s(int) in s(dart.core), top-level))]',
-      waldo.parameters);
-  expect('<null>', waldo.parameters[0].defaultValue);
-
-  cm = reflectClass(C);
-
-  MethodMirror fooInC = cm.declarations[#foo] as MethodMirror;
-  expect('Method(s(foo) in s(C))', fooInC);
-
-  // Names of type variables are not preserved after type canonicalization
-  // and are therefore not compared to expected names.
-
-
-  MethodMirror barInC = cm.declarations[#bar] as MethodMirror;
-  expect('Method(s(bar) in s(C))', barInC);
-}
diff --git a/tests/lib_2/mirrors/private_class_field_other.dart b/tests/lib_2/mirrors/private_class_field_other.dart
deleted file mode 100644
index d5476ee06bd..00000000000
--- a/tests/lib_2/mirrors/private_class_field_other.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class C {
-  static var _privateField = 42;
-}
-
-get privateFieldSymbolInOther => #_privateField;
diff --git a/tests/lib_2/mirrors/private_class_field_test.dart b/tests/lib_2/mirrors/private_class_field_test.dart
deleted file mode 100644
index 1b92c77497e..00000000000
--- a/tests/lib_2/mirrors/private_class_field_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test a private field name doesn't match the equivalent private name from
-// another library.
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-import 'private_class_field_other.dart';
-
-void main() {
-  var classMirror = reflectClass(C);
-  // The symbol is private w/r/t the wrong library.
-  Expect.throwsNoSuchMethodError(() => classMirror.getField(#_privateField));
-
-  Expect.equals(42, classMirror.getField(privateFieldSymbolInOther).reflectee);
-}
diff --git a/tests/lib_2/mirrors/private_field_helper.dart b/tests/lib_2/mirrors/private_field_helper.dart
deleted file mode 100644
index c328ddc9368..00000000000
--- a/tests/lib_2/mirrors/private_field_helper.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.mixin;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class Bar {
-  String _field = "hello";
-  String get field => _field;
-}
-
-var privateSymbol2 = #_field;
-var publicSymbol2 = #field;
diff --git a/tests/lib_2/mirrors/private_field_test.dart b/tests/lib_2/mirrors/private_field_test.dart
deleted file mode 100644
index f21925b2556..00000000000
--- a/tests/lib_2/mirrors/private_field_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.mixin;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-import 'private_field_helper.dart';
-
-class Foo extends Bar {
-  int _field = 42;
-
-  static int _staticField = 99;
-}
-
-var privateSymbol = #_field;
-var publicSymbol = #field;
-
-main() {
-  Expect.equals(publicSymbol, publicSymbol2);
-  Expect.notEquals(privateSymbol, privateSymbol2);
-
-  var foo = new Foo();
-  var m = reflect(foo);
-  m.setField(privateSymbol, 38);
-  Expect.equals(38, foo._field);
-  m.setField(privateSymbol2, "world");
-  Expect.equals("world", foo.field);
-  Expect.equals("world", m.getField(publicSymbol).reflectee);
-
-  var type = reflectClass(Foo);
-  Expect.equals(99, type.getField(#_staticField).reflectee);
-}
diff --git a/tests/lib_2/mirrors/private_symbol_mangling_lib.dart b/tests/lib_2/mirrors/private_symbol_mangling_lib.dart
deleted file mode 100644
index 4c40a7ad53f..00000000000
--- a/tests/lib_2/mirrors/private_symbol_mangling_lib.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library other;
-
-var _privateGlobalField = 3;
-
-_privateGlobalMethod() => 11;
-
-class C2 {
-  var _privateField = 1;
-  _privateMethod() => 3;
-}
diff --git a/tests/lib_2/mirrors/private_symbol_mangling_test.dart b/tests/lib_2/mirrors/private_symbol_mangling_test.dart
deleted file mode 100644
index 31d10351ad5..00000000000
--- a/tests/lib_2/mirrors/private_symbol_mangling_test.dart
+++ /dev/null
@@ -1,72 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library main;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-import 'private_symbol_mangling_lib.dart';
-
-var _privateGlobalField = 1;
-
-_privateGlobalMethod() => 9;
-
-class C1 {
-  var _privateField = 0;
-  _privateMethod() => 2;
-}
-
-getPrivateGlobalFieldValue(LibraryMirror lib) {
-  for (Symbol symbol in lib.declarations.keys) {
-    DeclarationMirror decl = lib.declarations[symbol];
-    if (decl is VariableMirror && decl.isPrivate) {
-      return lib.getField(symbol).reflectee;
-    }
-  }
-}
-
-getPrivateFieldValue(InstanceMirror cls) {
-  for (Symbol symbol in cls.type.declarations.keys) {
-    DeclarationMirror decl = cls.type.declarations[symbol];
-    if (decl is VariableMirror && decl.isPrivate) {
-      return cls.getField(symbol).reflectee;
-    }
-  }
-}
-
-getPrivateGlobalMethodValue(LibraryMirror lib) {
-  for (Symbol symbol in lib.declarations.keys) {
-    DeclarationMirror decl = lib.declarations[symbol];
-    if (decl is MethodMirror && decl.isRegularMethod && decl.isPrivate) {
-      return lib.invoke(symbol, []).reflectee;
-    }
-  }
-}
-
-getPrivateMethodValue(InstanceMirror cls) {
-  for (Symbol symbol in cls.type.declarations.keys) {
-    DeclarationMirror decl = cls.type.declarations[symbol];
-    if (decl is MethodMirror && decl.isRegularMethod && decl.isPrivate) {
-      return cls.invoke(symbol, []).reflectee;
-    }
-  }
-}
-
-main() {
-  LibraryMirror libmain = currentMirrorSystem().findLibrary(#main);
-  LibraryMirror libother = currentMirrorSystem().findLibrary(#other);
-  Expect.equals(1, getPrivateGlobalFieldValue(libmain));
-  Expect.equals(3, getPrivateGlobalFieldValue(libother));
-  Expect.equals(9, getPrivateGlobalMethodValue(libmain));
-  Expect.equals(11, getPrivateGlobalMethodValue(libother));
-
-  var c1 = reflect(new C1());
-  var c2 = reflect(new C2());
-  Expect.equals(0, getPrivateFieldValue(c1));
-  Expect.equals(1, getPrivateFieldValue(c2));
-  Expect.equals(2, getPrivateMethodValue(c1));
-  Expect.equals(3, getPrivateMethodValue(c2));
-}
diff --git a/tests/lib_2/mirrors/private_symbol_test.dart b/tests/lib_2/mirrors/private_symbol_test.dart
deleted file mode 100644
index cd2a26546e8..00000000000
--- a/tests/lib_2/mirrors/private_symbol_test.dart
+++ /dev/null
@@ -1,125 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-typedef int _F(int i);
-
-class _C<_T> {
-  get g {}
-  set s(x) {}
-  m(_p) {}
-  get _g {}
-  set _s(x) {}
-  _m() {}
-}
-
-main() {
-  // Test private symbols are distinct across libraries, and the same within a
-  // library when created multiple ways. Test the string can be properly
-  // extracted.
-  LibraryMirror libcore = currentMirrorSystem().findLibrary(#dart.core);
-  LibraryMirror libmath = currentMirrorSystem().findLibrary(#dart.math);
-  LibraryMirror libtest = currentMirrorSystem().findLibrary(#test);
-
-  Symbol corefoo = MirrorSystem.getSymbol('foo', libcore);
-  Symbol mathfoo = MirrorSystem.getSymbol('foo', libmath);
-  Symbol testfoo = MirrorSystem.getSymbol('foo', libtest);
-  Symbol nullfoo1 = MirrorSystem.getSymbol('foo');
-  Symbol nullfoo2 = MirrorSystem.getSymbol('foo', null);
-
-  Expect.equals(corefoo, mathfoo);
-  Expect.equals(mathfoo, testfoo);
-  Expect.equals(testfoo, corefoo);
-  Expect.equals(nullfoo1, corefoo);
-  Expect.equals(nullfoo2, corefoo);
-
-  Expect.equals('foo', MirrorSystem.getName(corefoo));
-  Expect.equals('foo', MirrorSystem.getName(mathfoo));
-  Expect.equals('foo', MirrorSystem.getName(testfoo));
-  Expect.equals('foo', MirrorSystem.getName(#foo));
-  Expect.equals('foo', MirrorSystem.getName(nullfoo1));
-  Expect.equals('foo', MirrorSystem.getName(nullfoo2));
-
-  Symbol core_foo = MirrorSystem.getSymbol('_foo', libcore);
-  Symbol math_foo = MirrorSystem.getSymbol('_foo', libmath);
-  Symbol test_foo = MirrorSystem.getSymbol('_foo', libtest);
-
-  Expect.equals('_foo', MirrorSystem.getName(core_foo));
-  Expect.equals('_foo', MirrorSystem.getName(math_foo));
-  Expect.equals('_foo', MirrorSystem.getName(test_foo));
-  Expect.equals('_foo', MirrorSystem.getName(#_foo));
-
-  Expect.notEquals(core_foo, math_foo);
-  Expect.notEquals(math_foo, test_foo);
-  Expect.notEquals(test_foo, core_foo);
-
-  Expect.notEquals(corefoo, core_foo);
-  Expect.notEquals(mathfoo, math_foo);
-  Expect.notEquals(testfoo, test_foo);
-
-  Expect.equals(test_foo, #_foo);
-
-  // Test interactions with the manglings for getters and setters, etc.
-  ClassMirror cm = reflectClass(_C);
-  Expect.equals(#_C, cm.simpleName);
-  Expect.equals('_C', MirrorSystem.getName(cm.simpleName));
-
-  MethodMirror mm = cm.declarations[#g] as MethodMirror;
-  Expect.isNotNull(mm);
-  Expect.isTrue(mm.isGetter);
-  Expect.equals(#g, mm.simpleName);
-  Expect.equals('g', MirrorSystem.getName(mm.simpleName));
-
-  mm = cm.declarations[const Symbol('s=')] as MethodMirror;
-  Expect.isNotNull(mm);
-  Expect.isTrue(mm.isSetter);
-  Expect.equals(const Symbol('s='), mm.simpleName);
-  Expect.equals('s=', MirrorSystem.getName(mm.simpleName));
-
-  mm = cm.declarations[#m] as MethodMirror;
-  Expect.isNotNull(mm);
-  Expect.isTrue(mm.isRegularMethod);
-  Expect.equals(#m, mm.simpleName);
-  Expect.equals('m', MirrorSystem.getName(mm.simpleName));
-
-  mm = cm.declarations[#_g] as MethodMirror;
-  Expect.isNotNull(mm);
-  Expect.isTrue(mm.isGetter);
-  Expect.equals(#_g, mm.simpleName);
-  Expect.equals('_g', MirrorSystem.getName(mm.simpleName));
-
-  mm = cm.declarations[MirrorSystem.getSymbol('_s=', libtest)] as MethodMirror;
-  Expect.isNotNull(mm);
-  Expect.isTrue(mm.isSetter);
-  Expect.equals(MirrorSystem.getSymbol('_s=', libtest), mm.simpleName);
-  Expect.equals('_s=', MirrorSystem.getName(mm.simpleName));
-
-  mm = cm.declarations[#_m] as MethodMirror;
-  Expect.isNotNull(mm);
-  Expect.isTrue(mm.isRegularMethod);
-  Expect.equals(#_m, mm.simpleName);
-  Expect.equals('_m', MirrorSystem.getName(mm.simpleName));
-
-  TypeVariableMirror tvm = cm.typeVariables[0];
-  Expect.isNotNull(tvm);
-  Expect.equals(#_T, tvm.simpleName);
-  Expect.equals('_T', MirrorSystem.getName(tvm.simpleName));
-
-  TypedefMirror tdm = reflectType(_F) as TypedefMirror;
-  Expect.equals(#_F, tdm.simpleName);
-  Expect.equals('_F', MirrorSystem.getName(tdm.simpleName));
-
-  ParameterMirror pm = (cm.declarations[#m] as MethodMirror).parameters[0];
-  Expect.equals(#_p, pm.simpleName);
-  Expect.equals('_p', MirrorSystem.getName(pm.simpleName));
-
-  // Private symbol without a library.
-  Expect.throwsArgumentError(() => MirrorSystem.getSymbol('_private'));
-}
diff --git a/tests/lib_2/mirrors/private_types_test.dart b/tests/lib_2/mirrors/private_types_test.dart
deleted file mode 100644
index b0157d80ad8..00000000000
--- a/tests/lib_2/mirrors/private_types_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.private_types;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-typedef int _F(int i);
-
-class _C<_T> {}
-
-typedef int F(int i);
-
-class C<T> {}
-
-main() {
-  Expect.isTrue(reflectType(_F).isPrivate);
-  Expect.isFalse((reflectType(_F) as TypedefMirror).referent.isPrivate);
-  Expect.isTrue(reflectType(_C).isPrivate);
-  Expect.isTrue(reflectClass(_C).typeVariables.single.isPrivate);
-
-  Expect.isFalse(reflectType(F).isPrivate);
-  Expect.isFalse((reflectType(F) as TypedefMirror).referent.isPrivate);
-  Expect.isFalse(reflectType(C).isPrivate);
-  Expect.isFalse(reflectClass(C).typeVariables.single.isPrivate);
-
-  Expect.isFalse(reflectType(dynamic).isPrivate);
-  Expect.isFalse(currentMirrorSystem().dynamicType.isPrivate);
-  Expect.isFalse(currentMirrorSystem().voidType.isPrivate);
-}
diff --git a/tests/lib_2/mirrors/proxy_type_test.dart b/tests/lib_2/mirrors/proxy_type_test.dart
deleted file mode 100644
index 83af63fc83d..00000000000
--- a/tests/lib_2/mirrors/proxy_type_test.dart
+++ /dev/null
@@ -1,88 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.proxy_type;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-// This test is much longer that is strictly necessary to test
-// InstanceMirror.type in the face of a reflectee overriding runtimeType, but
-// shows a case where one might have legitimate reason to override runtimeType.
-// See section 2.2 in Mark Miller's Robust Composition: Towards a Unified
-// Approach to Access Control and Concurrency Control.
-
-class Alice {
-  Bob bob = new Bob();
-  Carol carol = new Carol();
-  sayFooUnattenuated() {
-    bob.foo(carol);
-  }
-
-  sayFooAttenuated() {
-    bool enabled = true;
-    bool gate() => enabled;
-    bob.foo(new CarolCaretaker(carol, gate));
-    enabled = false; // Attenuate a capability
-  }
-
-  sayBar() {
-    bob.bar();
-  }
-}
-
-class Bob {
-  Carol savedCarol;
-  foo(Carol carol) {
-    savedCarol = carol; // Store a capability
-    carol.foo();
-  }
-
-  bar() {
-    savedCarol.foo();
-  }
-}
-
-class Carol {
-  foo() => 'c';
-}
-
-typedef bool Gate();
-
-class CarolCaretaker implements Carol {
-  final Carol _carol;
-  final Gate _gate;
-  CarolCaretaker(this._carol, this._gate);
-
-  foo() {
-    if (!_gate()) throw new NoSuchMethodError.withInvocation(
-      this,
-      Invocation.method(#foo, [], {}),
-    );
-    return _carol.foo();
-  }
-
-  Type get runtimeType => Carol;
-}
-
-main() {
-  Alice alice1 = new Alice();
-  alice1.sayFooUnattenuated();
-  alice1.sayBar(); // Bob still has authority to use Carol
-
-  Alice alice2 = new Alice();
-  alice2.sayFooAttenuated();
-  Expect.throwsNoSuchMethodError(() => alice2.sayBar(),
-      'Authority should have been attenuated');
-
-  // At the base level, a caretaker for a Carol masquerades as a Carol.
-  CarolCaretaker caretaker = new CarolCaretaker(new Carol(), () => true);
-  Expect.isTrue(caretaker is Carol);
-  Expect.equals(Carol, caretaker.runtimeType);
-
-  // At the reflective level, the caretaker is distinguishable.
-  Expect.equals(reflectClass(CarolCaretaker), reflect(caretaker).type);
-}
diff --git a/tests/lib_2/mirrors/raw_type_test.dart b/tests/lib_2/mirrors/raw_type_test.dart
deleted file mode 100644
index 0f34410a3ef..00000000000
--- a/tests/lib_2/mirrors/raw_type_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class Foo<T> {}
-
-class Bar<T> extends Foo<T> {}
-
-main() {
-  var fooType = reflectType(Foo);
-  var fooDeclaration = fooType.originalDeclaration;
-  var barSupertype = reflect(new Bar()).type.superclass;
-  var barSuperclass = barSupertype.originalDeclaration;
-  Expect.equals(fooDeclaration, barSuperclass, 'declarations');
-  Expect.equals(fooType, barSupertype, 'types'); //# 01: ok
-}
diff --git a/tests/lib_2/mirrors/redirecting_factory_different_type_test.dart b/tests/lib_2/mirrors/redirecting_factory_different_type_test.dart
deleted file mode 100644
index 2f8c9fba2cb..00000000000
--- a/tests/lib_2/mirrors/redirecting_factory_different_type_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library mirror_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class A {
-  factory A(
-    String //# 01: compile-time error
-    var    //# 02: compile-time error
-    int    //# none: ok
-      x) = B;
-  A._();
-}
-
-class B extends A {
-  var x;
-  B(int x)
-      : this.x = x,
-        super._();
-}
-
-main() {
-  var cm = reflectClass(A);
-  // The type-annotation in A's constructor must be ignored.
-  var b = cm.newInstance(Symbol.empty, [499]).reflectee;
-  Expect.equals(499, b.x);
-  Expect.throwsTypeError(() => cm.newInstance(Symbol.empty, ["str"]));
-}
diff --git a/tests/lib_2/mirrors/redirecting_factory_reflection_test.dart b/tests/lib_2/mirrors/redirecting_factory_reflection_test.dart
deleted file mode 100644
index f93ca3e4dfa..00000000000
--- a/tests/lib_2/mirrors/redirecting_factory_reflection_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-abstract class A<T> {
-  get t;
-  factory A() = B<T, A<T>>;
-}
-
-class B<X, Y> implements A<X> {
-  final t;
-  B() : t = Y;
-}
-
-main() {
-  ClassMirror m = reflectClass(A);
-  var i = m.newInstance(Symbol.empty, []).reflectee;
-  var s = i.t.toString();
-  Expect.isTrue(s == 'A' || s == 'A<dynamic>',
-      'mirrors should create the correct reified generic type');
-}
diff --git a/tests/lib_2/mirrors/redirecting_factory_test.dart b/tests/lib_2/mirrors/redirecting_factory_test.dart
deleted file mode 100644
index 22a0f0443b4..00000000000
--- a/tests/lib_2/mirrors/redirecting_factory_test.dart
+++ /dev/null
@@ -1,122 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:mirrors";
-import "package:expect/expect.dart";
-import "stringify.dart";
-
-class Class<T1, T2> {
-  final field;
-  Class(this.field);
-
-  factory Class.factoryNoOptional(a, b) => new Class<T1, T2>(a - b);
-  factory Class.redirectingFactoryNoOptional(a, b) = Class.factoryNoOptional;
-
-  factory Class.factoryUnnamedOptional(a, [b = 42]) => new Class<T1, T2>(a - b);
-  factory Class.redirectingFactoryUnnamedOptional(a, [b]) =
-      Class.factoryUnnamedOptional;
-
-  factory Class.factoryNamedOptional(a, {b: 42}) {
-    return new Class<T1, T2>(a - b);
-  }
-
-  factory Class.redirectingFactoryNamedOptional(a, {b}) =
-      Class.factoryNamedOptional;
-
-  factory Class.factoryMoreNamedOptional(a, {b: 0, c: 2}) {
-    return new Class<T1, T2>(a - b - c);
-  }
-
-  factory Class.redirectingFactoryMoreNamedOptional(a, {b}) =
-      Class<T1, T2>.factoryMoreNamedOptional;
-
-  factory Class.factoryMoreUnnamedOptional(a, [b = 0, c = 2]) {
-    return new Class<T1, T2>(a - b - c);
-  }
-
-  factory Class.redirectingFactoryMoreUnnamedOptional(a, [b]) =
-      Class<T1, T2>.factoryMoreUnnamedOptional;
-
-  factory Class.redirectingFactoryStringIntTypeParameters(a, b) = Class //
-      <String, int> //# 03: compile-time error
-      .factoryNoOptional;
-
-  factory Class.redirectingFactoryStringTypeParameters(a, b) = Class //
-      <String> //# 02: compile-time error
-      .factoryNoOptional;
-
-  factory Class.redirectingFactoryTypeParameters(a, b) =
-      Class<T1, T2>.factoryNoOptional;
-
-  factory Class.redirectingFactoryReversedTypeParameters(a, b) = Class //
-      <T2, T1> //# 04: compile-time error
-      .factoryNoOptional;
-}
-
-main() {
-  var classMirror = reflectClass(Class);
-
-  var instanceMirror = classMirror.newInstance(Symbol.empty, [2]);
-  Expect.equals(2, instanceMirror.reflectee.field);
-
-  instanceMirror =
-      classMirror.newInstance(#redirectingFactoryNoOptional, [8, 6]);
-  Expect.equals(2, instanceMirror.reflectee.field);
-
-  instanceMirror =
-      classMirror.newInstance(#redirectingFactoryUnnamedOptional, [43, 1]);
-  Expect.equals(42, instanceMirror.reflectee.field);
-
-  instanceMirror =
-      classMirror.newInstance(#redirectingFactoryMoreUnnamedOptional, [43, 1]);
-  Expect.equals(40, instanceMirror.reflectee.field);
-
-  instanceMirror = classMirror
-      .newInstance(#redirectingFactoryStringIntTypeParameters, [43, 1]);
-  Expect.equals(42, instanceMirror.reflectee.field);
-  Expect.isTrue(instanceMirror.reflectee is Class<String, int>);
-  Expect.isFalse(instanceMirror.reflectee is Class<int, String>);
-
-  instanceMirror =
-      classMirror.newInstance(#redirectingFactoryStringTypeParameters, [43, 1]);
-  Expect.equals(42, instanceMirror.reflectee.field);
-  Expect.isTrue(instanceMirror.reflectee is Class<String, int>);
-  Expect.isTrue(instanceMirror.reflectee is Class<String, String>);
-  Expect.isTrue(instanceMirror.reflectee is Class<int, String>);
-
-  bool isDart2js = false;
-  isDart2js = true; //# 01: ok
-  if (isDart2js) return;
-
-  instanceMirror =
-      classMirror.newInstance(#redirectingFactoryUnnamedOptional, [43]);
-  Expect.equals(1, instanceMirror.reflectee.field);
-
-  instanceMirror =
-      classMirror.newInstance(#redirectingFactoryNamedOptional, [43]);
-  Expect.equals(1, instanceMirror.reflectee.field);
-
-  instanceMirror = classMirror.newInstance(
-      #redirectingFactoryNamedOptional, [43], new Map()..[#b] = 1);
-  Expect.equals(42, instanceMirror.reflectee.field);
-
-  instanceMirror = classMirror.newInstance(
-      #redirectingFactoryMoreNamedOptional, [43], new Map()..[#b] = 1);
-  Expect.equals(40, instanceMirror.reflectee.field);
-
-  classMirror = reflect(new Class<String, int>(42)).type;
-  instanceMirror =
-      classMirror.newInstance(#redirectingFactoryTypeParameters, [43, 1]);
-  Expect.equals(42, instanceMirror.reflectee.field);
-  Expect.isTrue(instanceMirror.reflectee is Class<String, int>);
-  Expect.isFalse(instanceMirror.reflectee is Class<int, String>);
-
-  instanceMirror = classMirror
-      .newInstance(#redirectingFactoryReversedTypeParameters, [43, 1]);
-  Expect.equals(42, instanceMirror.reflectee.field);
-  Expect.isTrue(instanceMirror.reflectee is Class<int, String>);
-  Expect.isFalse(instanceMirror.reflectee is Class<String, int>);
-}
diff --git a/tests/lib_2/mirrors/reflect_class_test.dart b/tests/lib_2/mirrors/reflect_class_test.dart
deleted file mode 100644
index 816795537dd..00000000000
--- a/tests/lib_2/mirrors/reflect_class_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:mirrors";
-
-import "package:expect/expect.dart";
-
-typedef void FooFunction(int a, double b);
-
-main() {
-  Expect.throwsArgumentError(() => reflectClass(dynamic));
-  Expect.throwsArgumentError(() => reflectClass(1)); //# 01: compile-time error
-  Expect.throwsArgumentError(() => reflectClass("string")); //# 02: compile-time error
-  Expect.throwsArgumentError(() => reflectClass(FooFunction));
-}
diff --git a/tests/lib_2/mirrors/reflect_model_test.dart b/tests/lib_2/mirrors/reflect_model_test.dart
deleted file mode 100644
index 362a6cebe17..00000000000
--- a/tests/lib_2/mirrors/reflect_model_test.dart
+++ /dev/null
@@ -1,144 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.reflect_model_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-import 'model.dart';
-import 'stringify.dart';
-
-variablesOf(ClassMirror cm) {
-  var result = new Map();
-  cm.declarations.forEach((k, v) {
-    if (v is VariableMirror) result[k] = v;
-  });
-  return result;
-}
-
-gettersOf(ClassMirror cm) {
-  var result = new Map();
-  cm.declarations.forEach((k, v) {
-    if (v is MethodMirror && v.isGetter) result[k] = v;
-  });
-  return result;
-}
-
-settersOf(ClassMirror cm) {
-  var result = new Map();
-  cm.declarations.forEach((k, v) {
-    if (v is MethodMirror && v.isSetter) result[k] = v;
-  });
-  return result;
-}
-
-methodsOf(ClassMirror cm) {
-  var result = new Map();
-  cm.declarations.forEach((k, v) {
-    if (v is MethodMirror && v.isRegularMethod) result[k] = v;
-  });
-  return result;
-}
-
-main() {
-  var unnamed = new Symbol('');
-  var field = new Symbol('field');
-  var instanceMethod = new Symbol('instanceMethod');
-  var accessor = new Symbol('accessor');
-  var aMethod = new Symbol('aMethod');
-  var bMethod = new Symbol('bMethod');
-  var cMethod = new Symbol('cMethod');
-
-  var aClass = reflectClass(A);
-  var bClass = reflectClass(B);
-  var cClass = reflectClass(C);
-  var a = aClass.newInstance(unnamed, []);
-  var b = bClass.newInstance(unnamed, []);
-  var c = cClass.newInstance(unnamed, []);
-
-  expect('{field: Variable(s(field) in s(A))}', variablesOf(aClass));
-  expect('{}', variablesOf(bClass));
-  expect('{}', variablesOf(cClass));
-
-  Expect.isNull(a.getField(field).reflectee);
-  Expect.equals('B:get field', b.getField(field).reflectee);
-  Expect.equals('B:get field', c.getField(field).reflectee);
-
-  Expect.equals(42, a.setField(field, 42).reflectee);
-  Expect.equals(87, b.setField(field, 87).reflectee);
-  Expect.equals(89, c.setField(field, 89).reflectee);
-
-  Expect.equals(42, a.getField(field).reflectee);
-  Expect.equals('B:get field', b.getField(field).reflectee);
-  Expect.equals('B:get field', c.getField(field).reflectee);
-  Expect.equals(89, fieldC);
-
-  expect(
-      '{accessor: Method(s(accessor) in s(A), getter)'
-      '}',
-      gettersOf(aClass));
-  expect(
-      '{accessor: Method(s(accessor) in s(B), getter)'
-      ', field: Method(s(field) in s(B), getter)}',
-      gettersOf(bClass));
-  expect('{accessor: Method(s(accessor) in s(C), getter)}', gettersOf(cClass));
-
-  expect(
-      '{accessor=: Method(s(accessor=) in s(A), setter)'
-      '}',
-      settersOf(aClass));
-  expect(
-      '{accessor=: Method(s(accessor=) in s(B), setter)}', settersOf(bClass));
-  expect(
-      '{accessor=: Method(s(accessor=) in s(C), setter)'
-      ', field=: Method(s(field=) in s(C), setter)}',
-      settersOf(cClass));
-
-  Expect.equals('A:instanceMethod(7)', a.invoke(instanceMethod, [7]).reflectee);
-  Expect.equals('B:instanceMethod(9)', b.invoke(instanceMethod, [9]).reflectee);
-  Expect.equals(
-      'C:instanceMethod(13)', c.invoke(instanceMethod, [13]).reflectee);
-
-  expect(
-      '{aMethod: Method(s(aMethod) in s(A))'
-      ', instanceMethod: Method(s(instanceMethod) in s(A))}',
-      methodsOf(aClass));
-
-  expect(
-      '{bMethod: Method(s(bMethod) in s(B))'
-      ', instanceMethod: Method(s(instanceMethod) in s(B))}',
-      methodsOf(bClass));
-  expect(
-      '{cMethod: Method(s(cMethod) in s(C))'
-      ', instanceMethod: Method(s(instanceMethod) in s(C))}',
-      methodsOf(cClass));
-
-  Expect.equals('A:get accessor', a.getField(accessor).reflectee);
-  Expect.equals('B:get accessor', b.getField(accessor).reflectee);
-  Expect.equals('C:get accessor', c.getField(accessor).reflectee);
-
-  Expect.equals('foo', a.setField(accessor, 'foo').reflectee);
-  Expect.equals('bar', b.setField(accessor, 'bar').reflectee);
-  Expect.equals('baz', c.setField(accessor, 'baz').reflectee);
-
-  Expect.equals('foo', accessorA);
-  Expect.equals('bar', accessorB);
-  Expect.equals('baz', accessorC);
-
-  Expect.equals('aMethod', a.invoke(aMethod, []).reflectee);
-  Expect.equals('aMethod', b.invoke(aMethod, []).reflectee);
-  Expect.equals('aMethod', c.invoke(aMethod, []).reflectee);
-
-  Expect.throwsNoSuchMethodError(() => a.invoke(bMethod, []));
-  Expect.equals('bMethod', b.invoke(bMethod, []).reflectee);
-  Expect.equals('bMethod', c.invoke(bMethod, []).reflectee);
-
-  Expect.throwsNoSuchMethodError(() => a.invoke(cMethod, []));
-  Expect.throwsNoSuchMethodError(() => b.invoke(cMethod, []));
-  Expect.equals('cMethod', c.invoke(cMethod, []).reflectee);
-}
diff --git a/tests/lib_2/mirrors/reflect_runtime_type_test.dart b/tests/lib_2/mirrors/reflect_runtime_type_test.dart
deleted file mode 100644
index e477b01fc76..00000000000
--- a/tests/lib_2/mirrors/reflect_runtime_type_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// A simple test that ensure that reflection works on runtime types of
-// instantiated classes.
-
-import "dart:mirrors";
-
-class Foo {
-  int a = 0;
-}
-
-main() {
-  var m = reflectClass(new Foo().runtimeType);
-  var field = publicFields(m).single;
-  if (MirrorSystem.getName(field.simpleName) != 'a') {
-    throw 'Expected "a", but got "${MirrorSystem.getName(field.simpleName)}"';
-  }
-  print(field);
-}
-
-publicFields(ClassMirror mirror) => mirror.declarations.values
-    .where((x) => x is VariableMirror && !(x.isPrivate || x.isStatic));
diff --git a/tests/lib_2/mirrors/reflect_two_classes_test.dart b/tests/lib_2/mirrors/reflect_two_classes_test.dart
deleted file mode 100644
index 9f98d904b87..00000000000
--- a/tests/lib_2/mirrors/reflect_two_classes_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// This is a regression test for http://dartbug.com/23054
-
-library index;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-main() {
-  var bar = new Bar();
-  var barMirror = reflect(bar);
-  Expect.equals(42, barMirror.getField(#bar).reflectee, "bar field");
-  Expect.equals(42, barMirror.invoke(#getBar, []).reflectee, "getBar Method");
-
-  var foo = new Foo();
-  var fooMirror = reflect(foo);
-  Expect.equals(9, fooMirror.getField(#foo).reflectee, "foo field");
-  Expect.equals(9, fooMirror.invoke(#getFoo, []).reflectee, "getFoo Method");
-}
-
-class Bar {
-  int bar = 42;
-
-  int getBar() => bar;
-}
-
-class Foo {
-  int foo = 9;
-
-  int getFoo() => foo;
-}
diff --git a/tests/lib_2/mirrors/reflect_uninstantiated_class_test.dart b/tests/lib_2/mirrors/reflect_uninstantiated_class_test.dart
deleted file mode 100644
index e51b8a15b6f..00000000000
--- a/tests/lib_2/mirrors/reflect_uninstantiated_class_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// A simple test that ensure that reflection works on uninstantiated classes.
-
-import "dart:mirrors";
-
-class Foo {
-  int a = 0;
-}
-
-main() {
-  // Do NOT instantiate Foo.
-  var m = reflectClass(Foo);
-  var field = publicFields(m).single;
-  if (MirrorSystem.getName(field.simpleName) != 'a') {
-    throw 'Expected "a", but got "${MirrorSystem.getName(field.simpleName)}"';
-  }
-  print(field);
-}
-
-publicFields(ClassMirror mirror) => mirror.declarations.values
-    .where((x) => x is VariableMirror && !(x.isPrivate || x.isStatic));
diff --git a/tests/lib_2/mirrors/reflected_type_classes_test.dart b/tests/lib_2/mirrors/reflected_type_classes_test.dart
deleted file mode 100644
index 0e5c5b8fa80..00000000000
--- a/tests/lib_2/mirrors/reflected_type_classes_test.dart
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.reflected_type_classes;
-
-import 'dart:mirrors';
-
-import 'reflected_type_helper.dart';
-
-class A<T> {}
-
-class B extends A {}
-
-class C extends A<num, int> {} // //# 01: compile-time error
-class D extends A<int> {}
-
-class E<S> extends A<S> {}
-
-class F<R> extends A<int> {}
-
-class G {}
-
-class H<A, B, C> {}
-
-main() {
-  // Declarations.
-  expectReflectedType(reflectClass(A), null);
-  expectReflectedType(reflectClass(B), B);
-  expectReflectedType(reflectClass(C), C); // //# 01: continued
-  expectReflectedType(reflectClass(D), D);
-  expectReflectedType(reflectClass(E), null);
-  expectReflectedType(reflectClass(F), null);
-  expectReflectedType(reflectClass(G), G);
-  expectReflectedType(reflectClass(H), null);
-
-  // Instantiations.
-  expectReflectedType(reflect(new A()).type, new A().runtimeType);
-  expectReflectedType(reflect(new B()).type, new B().runtimeType);
-  expectReflectedType(reflect(new C()).type, new C().runtimeType); // //# 01: continued
-  expectReflectedType(reflect(new D()).type, new D().runtimeType);
-  expectReflectedType(reflect(new E()).type, new E().runtimeType);
-  expectReflectedType(reflect(new F()).type, new F().runtimeType);
-  expectReflectedType(reflect(new G()).type, new G().runtimeType);
-  expectReflectedType(reflect(new H()).type, new H().runtimeType);
-
-  expectReflectedType(reflect(new A<num>()).type, new A<num>().runtimeType);
-  expectReflectedType(reflect(new B<num>()).type.superclass, // //# 02: compile-time error
-                      new A<dynamic>().runtimeType); //         //# 02: continued
-  expectReflectedType(reflect(new C<num>()).type.superclass, // //# 01: continued
-                      new A<dynamic>().runtimeType); //         //# 01: continued
-  expectReflectedType(reflect(new D<num>()).type.superclass, // //# 03: compile-time error
-                      new A<int>().runtimeType); //             //# 03: continued
-  expectReflectedType(reflect(new E<num>()).type, new E<num>().runtimeType);
-  expectReflectedType(
-      reflect(new E<num>()).type.superclass, new A<num>().runtimeType);
-  expectReflectedType(
-      reflect(new F<num>()).type.superclass, new A<int>().runtimeType);
-  expectReflectedType(reflect(new F<num>()).type, new F<num>().runtimeType);
-  expectReflectedType(
-      reflect(new H<num, num, num>()).type, new H<num, num, num>().runtimeType);
-}
diff --git a/tests/lib_2/mirrors/reflected_type_function_type_test.dart b/tests/lib_2/mirrors/reflected_type_function_type_test.dart
deleted file mode 100644
index 2ed5d7336db..00000000000
--- a/tests/lib_2/mirrors/reflected_type_function_type_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.reflected_type_function_types;
-
-import 'dart:mirrors';
-
-import 'reflected_type_helper.dart';
-
-typedef bool Predicate(num n);
-
-bool somePredicate(num n) => n < 0;
-
-main() {
-  FunctionTypeMirror numToBool1 =
-      reflect(somePredicate).type as FunctionTypeMirror;
-  FunctionTypeMirror numToBool2 =
-      (reflectType(Predicate) as TypedefMirror).referent;
-
-  expectReflectedType(numToBool1, somePredicate.runtimeType);
-  expectReflectedType(numToBool2, Predicate);
-}
diff --git a/tests/lib_2/mirrors/reflected_type_generics_test.dart b/tests/lib_2/mirrors/reflected_type_generics_test.dart
deleted file mode 100644
index 44e07cb2aa6..00000000000
--- a/tests/lib_2/mirrors/reflected_type_generics_test.dart
+++ /dev/null
@@ -1,101 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.reflected_type_generics_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-import 'reflected_type_helper.dart';
-
-class A<T> {}
-
-class P {}
-
-class B extends A<P> {}
-
-class C<K, V> {}
-
-class D<T> extends A<T> {}
-
-class E<K> extends C<K, int> {}
-
-class F<G> {}
-
-typedef bool Predicate<T>(T arg);
-
-class FBounded<S extends FBounded<S>> {}
-
-class Helper<T> {
-  Type get param => T;
-}
-
-class Mixin<T extends P> {}
-
-class Composite<K extends P, V> extends Object with Mixin<K> {}
-
-main() {
-  // "Happy" paths:
-  expectReflectedType(reflectType(A, [P]), new A<P>().runtimeType);
-  expectReflectedType(reflectType(C, [B, P]), new C<B, P>().runtimeType);
-  expectReflectedType(reflectType(D, [P]), new D<P>().runtimeType);
-  expectReflectedType(reflectType(E, [P]), new E<P>().runtimeType);
-  expectReflectedType(
-      reflectType(FBounded, [new FBounded<Never>().runtimeType]), new FBounded<FBounded<Never>>().runtimeType);
-
-  var predicateHelper = new Helper<Predicate>();
-  expectReflectedType(reflectType(Predicate), predicateHelper.param); //# 01: ok
-  var composite = new Composite<P, int>();
-  expectReflectedType(reflectType(Composite, [P, int]), composite.runtimeType);
-
-  // Edge cases:
-  Expect.throws(
-      () => reflectType(P, []),
-      (e) => e is ArgumentError && e.invalidValue is List,
-      "Should throw an ArgumentError if reflecting not a generic class with "
-      "empty list of type arguments");
-  Expect.throws( //                                                             //# 03: ok
-      () => reflectType(P, [B]), //                                             //# 03: continued
-      (e) => e is Error, //                                                     //# 03: continued
-      "Should throw an ArgumentError if reflecting not a generic class with " //# 03: continued
-      "some type arguments"); //                                                //# 03: continued
-  Expect.throws(
-      () => reflectType(A, []),
-      (e) => e is ArgumentError && e.invalidValue is List,
-      "Should throw an ArgumentError if type argument list is empty for a "
-      "generic class");
-  Expect.throws( //                                                             //# 04: ok
-      () => reflectType(A, [P, B]), //                                          //# 04: continued
-      (e) => e is ArgumentError && e.invalidValue is List, //                   //# 04: continued
-      "Should throw an ArgumentError if number of type arguments is not " //    //# 04: continued
-      "correct"); //                                                            //# 04: continued
-  Expect.throws(() => reflectType(B, [P]), (e) => e is Error, //            //# 05: ok
-      "Should throw an ArgumentError for non-generic class extending " //   //# 05: continued
-      "generic one"); //                                                    //# 05: continued
-/*  Expect.throws(
-      () => reflectType(A, ["non-type"]),
-      (e) => e is ArgumentError && e.invalidValue is List,
-      "Should throw an ArgumentError when any of type arguments is not a
-      Type");*/
-  Expect.throws( //                                                                //# 06: ok
-      () => reflectType(A, [P, B]), //                                              //# 06: continued
-      (e) => e is ArgumentError && e.invalidValue is List, //                       //# 06: continued
-      "Should throw an ArgumentError if number of type arguments is not correct " //# 06: continued
-      "for generic extending another generic"); //                                  //# 06: continued
-  Expect.throws(
-      () => reflectType(reflectType(F).typeVariables[0].reflectedType, [int]));
-  Expect.throws(() => reflectType(FBounded, [int])); //# 02: ok
-  var boundedType =
-      reflectType(FBounded).typeVariables[0].upperBound.reflectedType;
-  Expect.throws(() => reflectType(boundedType, [int])); //# 02: ok
-  Expect.throws(() => reflectType(Composite, [int, int])); //# 02: ok
-
-  // Instantiation of a generic class preserves type information:
-  ClassMirror m = reflectType(A, [P]) as ClassMirror;
-  var instance = m.newInstance(Symbol.empty, []).reflectee;
-  Expect.equals(new A<P>().runtimeType, instance.runtimeType);
-}
diff --git a/tests/lib_2/mirrors/reflected_type_helper.dart b/tests/lib_2/mirrors/reflected_type_helper.dart
deleted file mode 100644
index 3483f72c55d..00000000000
--- a/tests/lib_2/mirrors/reflected_type_helper.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.reflected_type_helper;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-expectReflectedType(TypeMirror typeMirror, Type expectedType) {
-  if (expectedType == null) {
-    Expect.isFalse(typeMirror.hasReflectedType);
-    Expect.throwsUnsupportedError(() => typeMirror.reflectedType,
-        "Should not have a reflected type");
-  } else {
-    Expect.isTrue(typeMirror.hasReflectedType);
-    Expect.equals(expectedType, typeMirror.reflectedType);
-  }
-}
diff --git a/tests/lib_2/mirrors/reflected_type_special_types_test.dart b/tests/lib_2/mirrors/reflected_type_special_types_test.dart
deleted file mode 100644
index 1459ace3d2e..00000000000
--- a/tests/lib_2/mirrors/reflected_type_special_types_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.reflected_type_special_types;
-
-import 'dart:mirrors';
-
-import 'reflected_type_helper.dart';
-
-main() {
-  TypeMirror dynamicMirror = currentMirrorSystem().dynamicType;
-  TypeMirror dynamicMirror2 = reflectType(dynamic);
-  TypeMirror voidMirror = currentMirrorSystem().voidType;
-
-  expectReflectedType(dynamicMirror, dynamic);
-  expectReflectedType(dynamicMirror2, dynamic);
-  expectReflectedType(voidMirror, null);
-}
diff --git a/tests/lib_2/mirrors/reflected_type_test.dart b/tests/lib_2/mirrors/reflected_type_test.dart
deleted file mode 100644
index d5574180011..00000000000
--- a/tests/lib_2/mirrors/reflected_type_test.dart
+++ /dev/null
@@ -1,85 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.reflected_type_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class A<T> {}
-
-class B extends A {}
-
-class C extends A<num, int> {} // //# 01: compile-time error
-class D extends A<int> {}
-
-class E<S> extends A<S> {}
-
-class F<R> extends A<int> {}
-
-class G {}
-
-class H<A, B, C> {}
-
-expectReflectedType(classMirror, expectedType) {
-  if (expectedType == null) {
-    Expect.isFalse(classMirror.hasReflectedType,
-        "$classMirror should not have a reflected type");
-    Expect.throwsUnsupportedError(() => classMirror.reflectedType);
-  } else {
-    Expect.isTrue(classMirror.hasReflectedType,
-        "$classMirror should have a reflected type");
-    Expect.equals(expectedType, classMirror.reflectedType);
-  }
-}
-
-main() {
-  // Basic non-generic types, including intercepted types.
-  expectReflectedType(reflectClass(Object), Object);
-  expectReflectedType(reflectClass(String), String);
-  expectReflectedType(reflectClass(int), int);
-  expectReflectedType(reflectClass(num), num);
-  expectReflectedType(reflectClass(double), double);
-  expectReflectedType(reflectClass(bool), bool);
-  expectReflectedType(reflectClass(Null), Null);
-
-  // Declarations.
-  expectReflectedType(reflectClass(A), null);
-  expectReflectedType(reflectClass(B), B);
-  expectReflectedType(reflectClass(C), C); // //# 01: continued
-  expectReflectedType(reflectClass(D), D);
-  expectReflectedType(reflectClass(E), null);
-  expectReflectedType(reflectClass(F), null);
-  expectReflectedType(reflectClass(G), G);
-  expectReflectedType(reflectClass(H), null);
-
-  // Instantiations.
-  expectReflectedType(reflect(new A()).type, new A().runtimeType);
-  expectReflectedType(reflect(new B()).type, new B().runtimeType);
-  expectReflectedType(reflect(new C()).type, new C().runtimeType); // //# 01: continued
-  expectReflectedType(reflect(new D()).type, new D().runtimeType);
-  expectReflectedType(reflect(new E()).type, new E().runtimeType);
-  expectReflectedType(reflect(new F()).type, new F().runtimeType);
-  expectReflectedType(reflect(new G()).type, new G().runtimeType);
-  expectReflectedType(reflect(new H()).type, new H().runtimeType);
-
-  expectReflectedType(reflect(new A<num>()).type, new A<num>().runtimeType);
-  expectReflectedType(reflect(new B<num>()).type.superclass, // //# 02: compile-time error
-                      new A<dynamic>().runtimeType); //         //# 02: continued
-  expectReflectedType(reflect(new C<num>()).type.superclass, // //# 01: continued
-                      new A<dynamic>().runtimeType); //         //# 01: continued
-  expectReflectedType(reflect(new D<num>()).type.superclass, // //# 03: compile-time error
-                      new A<int>().runtimeType); //             //# 03: continued
-  expectReflectedType(reflect(new E<num>()).type, new E<num>().runtimeType);
-  expectReflectedType(
-      reflect(new E<num>()).type.superclass, new A<num>().runtimeType);
-  expectReflectedType(
-      reflect(new F<num>()).type.superclass, new A<int>().runtimeType);
-  expectReflectedType(reflect(new F<num>()).type, new F<num>().runtimeType);
-  expectReflectedType(
-      reflect(new H<num, num, num>()).type, new H<num, num, num>().runtimeType);
-}
diff --git a/tests/lib_2/mirrors/reflected_type_typedefs_test.dart b/tests/lib_2/mirrors/reflected_type_typedefs_test.dart
deleted file mode 100644
index 0c6335d07e4..00000000000
--- a/tests/lib_2/mirrors/reflected_type_typedefs_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.reflected_type_typedefs;
-
-import 'dart:mirrors';
-
-import 'reflected_type_helper.dart';
-
-typedef bool NonGenericPredicate(num n);
-typedef bool GenericPredicate<T>(T t);
-typedef S GenericTransform<S>(S s);
-
-main() {
-  final nonGenericPredicate = reflectType(NonGenericPredicate) as TypedefMirror;
-  final predicateOfDynamic = reflectType(GenericPredicate) as TypedefMirror;
-  final transformOfDynamic = reflectType(GenericTransform) as TypedefMirror;
-
-  final predicateDecl = predicateOfDynamic.originalDeclaration as TypedefMirror;
-  final transformDecl = transformOfDynamic.originalDeclaration as TypedefMirror;
-
-  expectReflectedType(nonGenericPredicate, NonGenericPredicate);
-  expectReflectedType(predicateOfDynamic, GenericPredicate);
-  expectReflectedType(transformOfDynamic, GenericTransform);
-  expectReflectedType(predicateDecl, null);
-  expectReflectedType(transformDecl, null);
-}
diff --git a/tests/lib_2/mirrors/reflected_type_typevars_test.dart b/tests/lib_2/mirrors/reflected_type_typevars_test.dart
deleted file mode 100644
index c06adfb5d21..00000000000
--- a/tests/lib_2/mirrors/reflected_type_typevars_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.reflected_type_type_variables;
-
-import 'dart:mirrors';
-
-import 'reflected_type_helper.dart';
-
-class Class<T> {}
-
-typedef bool Predicate<S>(S t);
-
-main() {
-  TypeVariableMirror tFromClass = reflectClass(Class).typeVariables[0];
-  TypeVariableMirror sFromPredicate = reflectType(Predicate).typeVariables[0];
-
-  expectReflectedType(tFromClass, null);
-  expectReflectedType(sFromPredicate, null);
-}
diff --git a/tests/lib_2/mirrors/reflectively_instantiate_uninstantiated_class_test.dart b/tests/lib_2/mirrors/reflectively_instantiate_uninstantiated_class_test.dart
deleted file mode 100644
index 03e86f9f401..00000000000
--- a/tests/lib_2/mirrors/reflectively_instantiate_uninstantiated_class_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Ensure that otherwise uninstantiated classes can be instantiated
-// reflectively.
-
-import "dart:mirrors";
-
-class Foo {
-  int a = 0;
-}
-
-main() {
-  // Do NOT instantiate Foo.
-  var m = reflectClass(Foo);
-  var instance = m.newInstance(Symbol.empty, []);
-  print(instance);
-  bool threw = false;
-  try {
-    m.newInstance(#noSuchConstructor, []);
-    throw 'Expected an exception';
-  } on NoSuchMethodError catch (e) {
-    print(e);
-    threw = true;
-  }
-  if (!threw) throw 'Expected a NoSuchMethodError';
-}
diff --git a/tests/lib_2/mirrors/regress_13462_0_test.dart b/tests/lib_2/mirrors/regress_13462_0_test.dart
deleted file mode 100644
index 2798187b176..00000000000
--- a/tests/lib_2/mirrors/regress_13462_0_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors';
-
-main() {
-  print(MirrorSystem.getName(#foo));
-}
diff --git a/tests/lib_2/mirrors/regress_13462_1_test.dart b/tests/lib_2/mirrors/regress_13462_1_test.dart
deleted file mode 100644
index e0c72a5370a..00000000000
--- a/tests/lib_2/mirrors/regress_13462_1_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors';
-
-main() {
-  var name = MirrorSystem.getName(#foo);
-  if (name != 'foo') throw 'Wrong name: $name != foo';
-}
diff --git a/tests/lib_2/mirrors/regress_14304_test.dart b/tests/lib_2/mirrors/regress_14304_test.dart
deleted file mode 100644
index cca18409d76..00000000000
--- a/tests/lib_2/mirrors/regress_14304_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for Issue 14304.
-
-import "dart:mirrors";
-import "package:expect/expect.dart";
-
-class A<T> {
-  T m() {}
-}
-
-main() {
-  ClassMirror a = reflectClass(A);
-  TypeVariableMirror t = a.typeVariables[0];
-  MethodMirror m = a.declarations[#m] as MethodMirror;
-
-  Expect.equals(t, m.returnType);
-}
diff --git a/tests/lib_2/mirrors/regress_16321_test.dart b/tests/lib_2/mirrors/regress_16321_test.dart
deleted file mode 100644
index e4419edc7f8..00000000000
--- a/tests/lib_2/mirrors/regress_16321_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for Issue 16321.
-// (Type errors in metadata crashed the VM in checked mode).
-
-import "dart:mirrors";
-
-class TypedBox {
-  final List<String> contents;
-  const TypedBox(this.contents);
-}
-
-@TypedBox('foo') //# 01: compile-time error
-@TypedBox(const ['foo'])
-class C {}
-
-main() {
-  reflectClass(C).metadata;
-}
diff --git a/tests/lib_2/mirrors/regress_18535_test.dart b/tests/lib_2/mirrors/regress_18535_test.dart
deleted file mode 100644
index 8efd4b3a8fd..00000000000
--- a/tests/lib_2/mirrors/regress_18535_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 18535.
-
-import 'dart:mirrors';
-import 'package:collection/collection.dart';
-
-void main() {
-  print(currentMirrorSystem().libraries);
-}
diff --git a/tests/lib_2/mirrors/regress_19731_test.dart b/tests/lib_2/mirrors/regress_19731_test.dart
deleted file mode 100644
index eee31aa55b3..00000000000
--- a/tests/lib_2/mirrors/regress_19731_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@metadata
-library regress_19731;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-@metadata
-const metadata = const Object();
-
-class OneField {
-  @metadata
-  var onlyClassField;
-
-  @metadata
-  method() {}
-}
-
-@metadata
-method() {}
-
-main() {
-  dynamic classMirror = reflectType(OneField);
-  var classFieldNames = classMirror.declarations.values
-      .where((v) => v is VariableMirror)
-      .map((v) => v.simpleName)
-      .toList();
-  Expect.setEquals([#onlyClassField], classFieldNames);
-
-  dynamic libraryMirror = classMirror.owner;
-  var libraryFieldNames = libraryMirror.declarations.values
-      .where((v) => v is VariableMirror)
-      .map((v) => v.simpleName)
-      .toList();
-  Expect.setEquals([#metadata], libraryFieldNames);
-}
diff --git a/tests/lib_2/mirrors/regress_26187_test.dart b/tests/lib_2/mirrors/regress_26187_test.dart
deleted file mode 100644
index 2a73596fbc5..00000000000
--- a/tests/lib_2/mirrors/regress_26187_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-class A {
-  const A();
-}
-
-class B {
-  const B();
-}
-
-typedef void f(@A() int, String);
-
-typedef void g(@B() int, String);
-
-main() {
-  ParameterMirror fParamMirror =
-      (reflectType(f) as TypedefMirror).referent.parameters[0];
-  ParameterMirror gParamMirror =
-      (reflectType(g) as TypedefMirror).referent.parameters[0];
-  Expect.equals(
-      '.A', MirrorSystem.getName(fParamMirror.metadata[0].type.qualifiedName));
-  Expect.equals(
-      '.B', MirrorSystem.getName(gParamMirror.metadata[0].type.qualifiedName));
-}
diff --git a/tests/lib_2/mirrors/regress_28255_test.dart b/tests/lib_2/mirrors/regress_28255_test.dart
deleted file mode 100644
index 8b1e91cfa76..00000000000
--- a/tests/lib_2/mirrors/regress_28255_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 28255
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-class Class {
-  noSuchMethod(i) => true;
-
-  foo() {
-    dynamic o = this;
-    Expect.isFalse(o.bar is Null);
-    Expect.isTrue(o.bar != null);
-    Expect.equals(true.runtimeType, o.bar.runtimeType);
-  }
-}
-
-main() {
-  reflectClass(Class).newInstance(Symbol.empty, []).reflectee.foo();
-}
diff --git a/tests/lib_2/mirrors/regress_33259_test.dart b/tests/lib_2/mirrors/regress_33259_test.dart
deleted file mode 100644
index 3cad482d352..00000000000
--- a/tests/lib_2/mirrors/regress_33259_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for http://dartbug.com/33259.
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-void main() {
-  final foo = reflectClass(Thing).declarations[#foo] as VariableMirror;
-  Expect.isTrue(foo.metadata[0].reflectee is Sub);
-}
-
-class Thing {
-  @Sub()
-  String foo = "initialized";
-}
-
-class Base<T> {
-  const Base();
-}
-
-class Sub extends Base<String> {
-  const Sub();
-}
diff --git a/tests/lib_2/mirrors/regress_34982_test.dart b/tests/lib_2/mirrors/regress_34982_test.dart
deleted file mode 100644
index 67c20c744c1..00000000000
--- a/tests/lib_2/mirrors/regress_34982_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for http://dartbug.com/34982
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-abstract class A {
-  int c();
-}
-
-class B implements A {
-  dynamic noSuchMethod(Invocation invocation) {}
-}
-
-void main() {
-  MethodMirror method1 = reflectClass(B).declarations[#c] as MethodMirror;
-  Expect.isTrue(method1.isSynthetic);
-
-  MethodMirror method2 =
-      reflectClass(B).declarations[#noSuchMethod] as MethodMirror;
-  Expect.isFalse(method2.isSynthetic);
-
-  MethodMirror method3 = reflectClass(A).declarations[#c] as MethodMirror;
-  Expect.isFalse(method3.isSynthetic);
-}
diff --git a/tests/lib_2/mirrors/regress_38035_test.dart b/tests/lib_2/mirrors/regress_38035_test.dart
deleted file mode 100644
index 9ff74ca6721..00000000000
--- a/tests/lib_2/mirrors/regress_38035_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for https://github.com/dart-lang/sdk/issues/38035.
-//
-// Verifies that static tear-off has correct information about argument types.
-
-import 'package:expect/expect.dart';
-import 'dart:mirrors';
-
-class A {
-  static bool _defaultCheck([dynamic e]) => true;
-}
-
-main() {
-  Expect.equals('([dynamic]) -> dart.core.bool',
-      MirrorSystem.getName(reflect(A._defaultCheck).type.simpleName));
-}
diff --git a/tests/lib_2/mirrors/regress_b196606044_test.dart b/tests/lib_2/mirrors/regress_b196606044_test.dart
deleted file mode 100644
index 12df1a27d0c..00000000000
--- a/tests/lib_2/mirrors/regress_b196606044_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for b/196606044.
-//
-// Verifies that instance.type.instanceMembers contains 'isNotEmpty'
-// member for a List literal.
-
-import 'package:expect/expect.dart';
-import 'dart:mirrors';
-
-dynamic object = <int>[1, 2, 3];
-String name = 'isNotEmpty';
-
-main() {
-  var instance = reflect(object);
-  var member = instance.type.instanceMembers[new Symbol(name)];
-  Expect.isNotNull(member);
-  var invocation = instance.getField(member.simpleName);
-  Expect.isNotNull(invocation);
-  Expect.equals(true, invocation.reflectee);
-}
diff --git a/tests/lib_2/mirrors/relation_assignable_test.dart b/tests/lib_2/mirrors/relation_assignable_test.dart
deleted file mode 100644
index 8286d37dbfe..00000000000
--- a/tests/lib_2/mirrors/relation_assignable_test.dart
+++ /dev/null
@@ -1,330 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.relation_assignable;
-
-import "dart:mirrors";
-
-import "package:expect/expect.dart";
-
-class Superclass {}
-
-class Subclass1 extends Superclass {}
-
-class Subclass2 extends Superclass {}
-
-typedef bool NumberPredicate(num x);
-typedef bool IntegerPredicate(int x);
-typedef bool DoublePredicate(double x);
-
-typedef num NumberGenerator();
-typedef int IntegerGenerator();
-typedef double DoubleGenerator();
-
-class A<T> {}
-
-class B<T> extends A<T> {}
-
-class C<T extends num> {}
-
-test(MirrorSystem mirrors) {
-  LibraryMirror coreLibrary = mirrors.findLibrary(#dart.core);
-  LibraryMirror thisLibrary = mirrors.findLibrary(#test.relation_assignable);
-
-  // Classes.
-  TypeMirror Super = thisLibrary.declarations[#Superclass] as TypeMirror;
-  TypeMirror Sub1 = thisLibrary.declarations[#Subclass1] as TypeMirror;
-  TypeMirror Sub2 = thisLibrary.declarations[#Subclass2] as TypeMirror;
-  TypeMirror Obj = coreLibrary.declarations[#Object] as TypeMirror;
-  TypeMirror Nul = coreLibrary.declarations[#Null] as TypeMirror;
-
-  Expect.isTrue(Obj.isAssignableTo(Obj));
-  Expect.isTrue(Super.isAssignableTo(Super));
-  Expect.isTrue(Sub1.isAssignableTo(Sub1));
-  Expect.isTrue(Sub2.isAssignableTo(Sub2));
-  Expect.isTrue(Nul.isAssignableTo(Nul));
-
-  Expect.isTrue(Sub1.isAssignableTo(Super));
-  Expect.isTrue(Super.isAssignableTo(Sub1));
-
-  Expect.isTrue(Sub2.isAssignableTo(Super));
-  Expect.isTrue(Super.isAssignableTo(Sub2));
-
-  Expect.isFalse(Sub2.isAssignableTo(Sub1));
-  Expect.isFalse(Sub1.isAssignableTo(Sub2));
-
-  Expect.isTrue(Sub1.isAssignableTo(Obj));
-  Expect.isTrue(Obj.isAssignableTo(Sub1));
-
-  Expect.isTrue(Sub2.isAssignableTo(Obj));
-  Expect.isTrue(Obj.isAssignableTo(Sub2));
-
-  Expect.isTrue(Super.isAssignableTo(Obj));
-  Expect.isTrue(Obj.isAssignableTo(Super));
-
-  Expect.isTrue(Nul.isAssignableTo(Obj));
-  Expect.isTrue(Obj.isAssignableTo(Nul));
-  Expect.isTrue(Nul.isAssignableTo(Super)); // Null type is bottom type.
-  Expect.isTrue(Super.isAssignableTo(Nul));
-
-  // Function typedef - argument type.
-  TypeMirror Func = coreLibrary.declarations[#Function] as TypeMirror;
-  TypedefMirror NumPred =
-      thisLibrary.declarations[#NumberPredicate] as TypedefMirror;
-  TypedefMirror IntPred =
-      thisLibrary.declarations[#IntegerPredicate] as TypedefMirror;
-  TypedefMirror DubPred =
-      thisLibrary.declarations[#DoublePredicate] as TypedefMirror;
-
-  Expect.isTrue(Func.isAssignableTo(Func));
-  Expect.isTrue(NumPred.isAssignableTo(NumPred));
-  Expect.isTrue(IntPred.isAssignableTo(IntPred));
-  Expect.isTrue(DubPred.isAssignableTo(DubPred));
-
-  Expect.isTrue(NumPred.isAssignableTo(Func));
-  Expect.isTrue(NumPred.isAssignableTo(IntPred));
-  Expect.isTrue(NumPred.isAssignableTo(DubPred));
-
-  Expect.isTrue(IntPred.isAssignableTo(Func));
-  Expect.isTrue(IntPred.isAssignableTo(NumPred));
-  Expect.isFalse(IntPred.isAssignableTo(DubPred));
-
-  Expect.isTrue(DubPred.isAssignableTo(Func));
-  Expect.isTrue(DubPred.isAssignableTo(NumPred));
-  Expect.isFalse(DubPred.isAssignableTo(IntPred));
-
-  Expect.isTrue(Func.isAssignableTo(Obj));
-  Expect.isTrue(NumPred.isAssignableTo(Obj));
-  Expect.isTrue(IntPred.isAssignableTo(Obj));
-  Expect.isTrue(DubPred.isAssignableTo(Obj));
-  Expect.isTrue(Obj.isAssignableTo(Func));
-  Expect.isTrue(Obj.isAssignableTo(NumPred));
-  Expect.isTrue(Obj.isAssignableTo(IntPred));
-  Expect.isTrue(Obj.isAssignableTo(DubPred));
-
-  // Function typedef - return type.
-  TypedefMirror NumGen =
-      thisLibrary.declarations[#NumberGenerator] as TypedefMirror;
-  TypedefMirror IntGen =
-      thisLibrary.declarations[#IntegerGenerator] as TypedefMirror;
-  TypedefMirror DubGen =
-      thisLibrary.declarations[#DoubleGenerator] as TypedefMirror;
-
-  Expect.isTrue(NumGen.isAssignableTo(NumGen));
-  Expect.isTrue(IntGen.isAssignableTo(IntGen));
-  Expect.isTrue(DubGen.isAssignableTo(DubGen));
-
-  Expect.isTrue(NumGen.isAssignableTo(Func));
-  Expect.isTrue(NumGen.isAssignableTo(IntGen));
-  Expect.isTrue(NumGen.isAssignableTo(DubGen));
-
-  Expect.isTrue(IntGen.isAssignableTo(Func));
-  Expect.isTrue(IntGen.isAssignableTo(NumGen));
-  Expect.isFalse(IntGen.isAssignableTo(DubGen));
-
-  Expect.isTrue(DubGen.isAssignableTo(Func));
-  Expect.isTrue(DubGen.isAssignableTo(NumGen));
-  Expect.isFalse(DubGen.isAssignableTo(IntGen));
-
-  Expect.isTrue(Func.isAssignableTo(Obj));
-  Expect.isTrue(NumGen.isAssignableTo(Obj));
-  Expect.isTrue(IntGen.isAssignableTo(Obj));
-  Expect.isTrue(DubGen.isAssignableTo(Obj));
-  Expect.isTrue(Obj.isAssignableTo(Func));
-  Expect.isTrue(Obj.isAssignableTo(NumGen));
-  Expect.isTrue(Obj.isAssignableTo(IntGen));
-  Expect.isTrue(Obj.isAssignableTo(DubGen));
-
-  // Function - argument type.
-  TypeMirror NumPredRef = NumPred.referent;
-  TypeMirror IntPredRef = IntPred.referent;
-  TypeMirror DubPredRef = DubPred.referent;
-
-  Expect.isTrue(Func.isAssignableTo(Func));
-  Expect.isTrue(NumPredRef.isAssignableTo(NumPredRef));
-  Expect.isTrue(IntPredRef.isAssignableTo(IntPredRef));
-  Expect.isTrue(DubPredRef.isAssignableTo(DubPredRef));
-
-  Expect.isTrue(NumPredRef.isAssignableTo(Func));
-  Expect.isTrue(NumPredRef.isAssignableTo(IntPredRef));
-  Expect.isTrue(NumPredRef.isAssignableTo(DubPredRef));
-
-  Expect.isTrue(IntPredRef.isAssignableTo(Func));
-  Expect.isTrue(IntPredRef.isAssignableTo(NumPredRef));
-  Expect.isFalse(IntPredRef.isAssignableTo(DubPredRef));
-
-  Expect.isTrue(DubPredRef.isAssignableTo(Func));
-  Expect.isTrue(DubPredRef.isAssignableTo(NumPredRef));
-  Expect.isFalse(DubPredRef.isAssignableTo(IntPredRef));
-
-  Expect.isTrue(Func.isAssignableTo(Obj));
-  Expect.isTrue(NumPredRef.isAssignableTo(Obj));
-  Expect.isTrue(IntPredRef.isAssignableTo(Obj));
-  Expect.isTrue(DubPredRef.isAssignableTo(Obj));
-  Expect.isTrue(Obj.isAssignableTo(Func));
-  Expect.isTrue(Obj.isAssignableTo(NumPredRef));
-  Expect.isTrue(Obj.isAssignableTo(IntPredRef));
-  Expect.isTrue(Obj.isAssignableTo(DubPredRef));
-
-  // Function - return type.
-  TypeMirror NumGenRef = NumGen.referent;
-  TypeMirror IntGenRef = IntGen.referent;
-  TypeMirror DubGenRef = DubGen.referent;
-
-  Expect.isTrue(NumGenRef.isAssignableTo(NumGenRef));
-  Expect.isTrue(IntGenRef.isAssignableTo(IntGenRef));
-  Expect.isTrue(DubGenRef.isAssignableTo(DubGenRef));
-
-  Expect.isTrue(NumGenRef.isAssignableTo(Func));
-  Expect.isTrue(NumGenRef.isAssignableTo(IntGenRef));
-  Expect.isTrue(NumGenRef.isAssignableTo(DubGenRef));
-
-  Expect.isTrue(IntGenRef.isAssignableTo(Func));
-  Expect.isTrue(IntGenRef.isAssignableTo(NumGenRef));
-  Expect.isFalse(IntGenRef.isAssignableTo(DubGenRef));
-
-  Expect.isTrue(DubGenRef.isAssignableTo(Func));
-  Expect.isTrue(DubGenRef.isAssignableTo(NumGenRef));
-  Expect.isFalse(DubGenRef.isAssignableTo(IntGenRef));
-
-  Expect.isTrue(Func.isAssignableTo(Obj));
-  Expect.isTrue(NumGenRef.isAssignableTo(Obj));
-  Expect.isTrue(IntGenRef.isAssignableTo(Obj));
-  Expect.isTrue(DubGenRef.isAssignableTo(Obj));
-  Expect.isTrue(Obj.isAssignableTo(Func));
-  Expect.isTrue(Obj.isAssignableTo(NumGenRef));
-  Expect.isTrue(Obj.isAssignableTo(IntGenRef));
-  Expect.isTrue(Obj.isAssignableTo(DubGenRef));
-
-  // Function typedef / function.
-  Expect.isTrue(NumPred.isAssignableTo(NumPredRef));
-  Expect.isTrue(IntPred.isAssignableTo(IntPredRef));
-  Expect.isTrue(DubPred.isAssignableTo(DubPredRef));
-  Expect.isTrue(NumPredRef.isAssignableTo(NumPred));
-  Expect.isTrue(IntPredRef.isAssignableTo(IntPred));
-  Expect.isTrue(DubPredRef.isAssignableTo(DubPred));
-
-  // Function typedef / function.
-  Expect.isTrue(NumGen.isAssignableTo(NumGenRef));
-  Expect.isTrue(IntGen.isAssignableTo(IntGenRef));
-  Expect.isTrue(DubGen.isAssignableTo(DubGenRef));
-  Expect.isTrue(NumGenRef.isAssignableTo(NumGen));
-  Expect.isTrue(IntGenRef.isAssignableTo(IntGen));
-  Expect.isTrue(DubGenRef.isAssignableTo(DubGen));
-
-  // Type variable.
-  TypeMirror TFromA =
-      (thisLibrary.declarations[#A] as ClassMirror).typeVariables.single;
-  TypeMirror TFromB =
-      (thisLibrary.declarations[#B] as ClassMirror).typeVariables.single;
-  TypeMirror TFromC =
-      (thisLibrary.declarations[#C] as ClassMirror).typeVariables.single;
-
-  Expect.isTrue(TFromA.isAssignableTo(TFromA));
-  Expect.isTrue(TFromB.isAssignableTo(TFromB));
-  Expect.isTrue(TFromC.isAssignableTo(TFromC));
-
-  Expect.isFalse(TFromA.isAssignableTo(TFromB));
-  Expect.isFalse(TFromA.isAssignableTo(TFromC));
-  Expect.isFalse(TFromB.isAssignableTo(TFromA));
-  Expect.isFalse(TFromB.isAssignableTo(TFromC));
-  Expect.isFalse(TFromC.isAssignableTo(TFromA));
-  Expect.isFalse(TFromC.isAssignableTo(TFromB));
-
-  TypeMirror Num = coreLibrary.declarations[#num] as TypeMirror;
-  Expect.isTrue(TFromC.isAssignableTo(Num));
-  Expect.isTrue(Num.isAssignableTo(TFromC));
-
-  // dynamic & void.
-  TypeMirror Dynamic = mirrors.dynamicType;
-  Expect.isTrue(Dynamic.isAssignableTo(Dynamic));
-  Expect.isTrue(Obj.isAssignableTo(Dynamic));
-  Expect.isTrue(Super.isAssignableTo(Dynamic));
-  Expect.isTrue(Sub1.isAssignableTo(Dynamic));
-  Expect.isTrue(Sub2.isAssignableTo(Dynamic));
-  Expect.isTrue(NumPred.isAssignableTo(Dynamic));
-  Expect.isTrue(IntPred.isAssignableTo(Dynamic));
-  Expect.isTrue(DubPred.isAssignableTo(Dynamic));
-  Expect.isTrue(NumPredRef.isAssignableTo(Dynamic));
-  Expect.isTrue(IntPredRef.isAssignableTo(Dynamic));
-  Expect.isTrue(DubPredRef.isAssignableTo(Dynamic));
-  Expect.isTrue(NumGen.isAssignableTo(Dynamic));
-  Expect.isTrue(IntGen.isAssignableTo(Dynamic));
-  Expect.isTrue(DubGen.isAssignableTo(Dynamic));
-  Expect.isTrue(NumGenRef.isAssignableTo(Dynamic));
-  Expect.isTrue(IntGenRef.isAssignableTo(Dynamic));
-  Expect.isTrue(DubGenRef.isAssignableTo(Dynamic));
-  Expect.isTrue(TFromA.isAssignableTo(Dynamic));
-  Expect.isTrue(TFromB.isAssignableTo(Dynamic));
-  Expect.isTrue(TFromC.isAssignableTo(Dynamic));
-  Expect.isTrue(Dynamic.isAssignableTo(Obj));
-  Expect.isTrue(Dynamic.isAssignableTo(Super));
-  Expect.isTrue(Dynamic.isAssignableTo(Sub1));
-  Expect.isTrue(Dynamic.isAssignableTo(Sub2));
-  Expect.isTrue(Dynamic.isAssignableTo(NumPred));
-  Expect.isTrue(Dynamic.isAssignableTo(IntPred));
-  Expect.isTrue(Dynamic.isAssignableTo(DubPred));
-  Expect.isTrue(Dynamic.isAssignableTo(NumPredRef));
-  Expect.isTrue(Dynamic.isAssignableTo(IntPredRef));
-  Expect.isTrue(Dynamic.isAssignableTo(DubPredRef));
-  Expect.isTrue(Dynamic.isAssignableTo(NumGen));
-  Expect.isTrue(Dynamic.isAssignableTo(IntGen));
-  Expect.isTrue(Dynamic.isAssignableTo(DubGen));
-  Expect.isTrue(Dynamic.isAssignableTo(NumGenRef));
-  Expect.isTrue(Dynamic.isAssignableTo(IntGenRef));
-  Expect.isTrue(Dynamic.isAssignableTo(DubGenRef));
-  Expect.isTrue(Dynamic.isAssignableTo(TFromA));
-  Expect.isTrue(Dynamic.isAssignableTo(TFromB));
-  Expect.isTrue(Dynamic.isAssignableTo(TFromC));
-
-  TypeMirror Void = mirrors.voidType;
-  Expect.isTrue(Void.isAssignableTo(Void));
-  Expect.isFalse(Obj.isAssignableTo(Void));
-  Expect.isFalse(Super.isAssignableTo(Void));
-  Expect.isFalse(Sub1.isAssignableTo(Void));
-  Expect.isFalse(Sub2.isAssignableTo(Void));
-  Expect.isFalse(NumPred.isAssignableTo(Void));
-  Expect.isFalse(IntPred.isAssignableTo(Void));
-  Expect.isFalse(DubPred.isAssignableTo(Void));
-  Expect.isFalse(NumPredRef.isAssignableTo(Void));
-  Expect.isFalse(IntPredRef.isAssignableTo(Void));
-  Expect.isFalse(DubPredRef.isAssignableTo(Void));
-  Expect.isFalse(NumGen.isAssignableTo(Void));
-  Expect.isFalse(IntGen.isAssignableTo(Void));
-  Expect.isFalse(DubGen.isAssignableTo(Void));
-  Expect.isFalse(NumGenRef.isAssignableTo(Void));
-  Expect.isFalse(IntGenRef.isAssignableTo(Void));
-  Expect.isFalse(DubGenRef.isAssignableTo(Void));
-  Expect.isFalse(TFromA.isAssignableTo(Void));
-  Expect.isFalse(TFromB.isAssignableTo(Void));
-  Expect.isFalse(TFromC.isAssignableTo(Void));
-  Expect.isFalse(Void.isAssignableTo(Obj));
-  Expect.isFalse(Void.isAssignableTo(Super));
-  Expect.isFalse(Void.isAssignableTo(Sub1));
-  Expect.isFalse(Void.isAssignableTo(Sub2));
-  Expect.isFalse(Void.isAssignableTo(NumPred));
-  Expect.isFalse(Void.isAssignableTo(IntPred));
-  Expect.isFalse(Void.isAssignableTo(DubPred));
-  Expect.isFalse(Void.isAssignableTo(NumPredRef));
-  Expect.isFalse(Void.isAssignableTo(IntPredRef));
-  Expect.isFalse(Void.isAssignableTo(DubPredRef));
-  Expect.isFalse(Void.isAssignableTo(NumGen));
-  Expect.isFalse(Void.isAssignableTo(IntGen));
-  Expect.isFalse(Void.isAssignableTo(DubGen));
-  Expect.isFalse(Void.isAssignableTo(NumGenRef));
-  Expect.isFalse(Void.isAssignableTo(IntGenRef));
-  Expect.isFalse(Void.isAssignableTo(DubGenRef));
-  Expect.isFalse(Void.isAssignableTo(TFromA));
-  Expect.isFalse(Void.isAssignableTo(TFromB));
-  Expect.isFalse(Void.isAssignableTo(TFromC));
-
-  Expect.isTrue(Dynamic.isAssignableTo(Void));
-  Expect.isTrue(Void.isAssignableTo(Dynamic));
-}
-
-main() {
-  test(currentMirrorSystem());
-}
diff --git a/tests/lib_2/mirrors/relation_subclass_test.dart b/tests/lib_2/mirrors/relation_subclass_test.dart
deleted file mode 100644
index ee034d14f16..00000000000
--- a/tests/lib_2/mirrors/relation_subclass_test.dart
+++ /dev/null
@@ -1,120 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.relation_subclass;
-
-import "dart:mirrors";
-
-import "package:expect/expect.dart";
-
-class Superclass {}
-
-class Subclass1 extends Superclass {}
-
-class Subclass2 extends Superclass {}
-
-typedef bool NumberPredicate(num x);
-typedef bool IntegerPredicate(int x);
-typedef bool DoublePredicate(double x);
-
-typedef num NumberGenerator();
-typedef int IntegerGenerator();
-typedef double DoubleGenerator();
-
-test(MirrorSystem mirrors) {
-  LibraryMirror coreLibrary = mirrors.findLibrary(#dart.core);
-  LibraryMirror thisLibrary = mirrors.findLibrary(#test.relation_subclass);
-
-  ClassMirror Super = thisLibrary.declarations[#Superclass] as ClassMirror;
-  ClassMirror Sub1 = thisLibrary.declarations[#Subclass1] as ClassMirror;
-  ClassMirror Sub2 = thisLibrary.declarations[#Subclass2] as ClassMirror;
-  ClassMirror Obj = coreLibrary.declarations[#Object] as ClassMirror;
-  ClassMirror Nul = coreLibrary.declarations[#Null] as ClassMirror;
-
-  Expect.isTrue(Obj.isSubclassOf(Obj));
-  Expect.isTrue(Super.isSubclassOf(Super));
-  Expect.isTrue(Sub1.isSubclassOf(Sub1));
-  Expect.isTrue(Sub2.isSubclassOf(Sub2));
-  Expect.isTrue(Nul.isSubclassOf(Nul));
-
-  Expect.isTrue(Sub1.isSubclassOf(Super));
-  Expect.isFalse(Super.isSubclassOf(Sub1));
-
-  Expect.isTrue(Sub2.isSubclassOf(Super));
-  Expect.isFalse(Super.isSubclassOf(Sub2));
-
-  Expect.isFalse(Sub2.isSubclassOf(Sub1));
-  Expect.isFalse(Sub1.isSubclassOf(Sub2));
-
-  Expect.isTrue(Sub1.isSubclassOf(Obj));
-  Expect.isFalse(Obj.isSubclassOf(Sub1));
-
-  Expect.isTrue(Sub2.isSubclassOf(Obj));
-  Expect.isFalse(Obj.isSubclassOf(Sub2));
-
-  Expect.isTrue(Super.isSubclassOf(Obj));
-  Expect.isFalse(Obj.isSubclassOf(Super));
-
-  Expect.isTrue(Nul.isSubclassOf(Obj));
-  Expect.isFalse(Obj.isSubclassOf(Nul));
-  Expect.isFalse(Nul.isSubclassOf(Super));
-  Expect.isFalse(Super.isSubclassOf(Nul));
-
-  ClassMirror Func = coreLibrary.declarations[#Function] as ClassMirror;
-  Expect.isTrue(Func.isSubclassOf(Obj));
-  Expect.isFalse(Obj.isSubclassOf(Func));
-
-  // Function typedef.
-  dynamic NumPred = thisLibrary.declarations[#NumberPredicate];
-  dynamic IntPred = thisLibrary.declarations[#IntegerPredicate];
-  dynamic DubPred = thisLibrary.declarations[#DoublePredicate];
-  dynamic NumGen = thisLibrary.declarations[#NumberGenerator];
-  dynamic IntGen = thisLibrary.declarations[#IntegerGenerator];
-  dynamic DubGen = thisLibrary.declarations[#DoubleGenerator];
-
-  isArgumentOrTypeError(e) => e is ArgumentError || e is TypeError;
-  Expect.throws(() => Func.isSubclassOf(NumPred), isArgumentOrTypeError);
-  Expect.throws(() => Func.isSubclassOf(IntPred), isArgumentOrTypeError);
-  Expect.throws(() => Func.isSubclassOf(DubPred), isArgumentOrTypeError);
-  Expect.throws(() => Func.isSubclassOf(NumGen), isArgumentOrTypeError);
-  Expect.throws(() => Func.isSubclassOf(IntGen), isArgumentOrTypeError);
-  Expect.throws(() => Func.isSubclassOf(DubGen), isArgumentOrTypeError);
-
-  Expect.throwsNoSuchMethodError(() => NumPred.isSubclassOf(Func));
-  Expect.throwsNoSuchMethodError(() => IntPred.isSubclassOf(Func));
-  Expect.throwsNoSuchMethodError(() => DubPred.isSubclassOf(Func));
-  Expect.throwsNoSuchMethodError(() => NumGen.isSubclassOf(Func));
-  Expect.throwsNoSuchMethodError(() => IntGen.isSubclassOf(Func));
-  Expect.throwsNoSuchMethodError(() => DubGen.isSubclassOf(Func));
-
-  // Function type.
-  TypeMirror NumPredRef = (NumPred as TypedefMirror).referent;
-  TypeMirror IntPredRef = (IntPred as TypedefMirror).referent;
-  TypeMirror DubPredRef = (DubPred as TypedefMirror).referent;
-  TypeMirror NumGenRef = (NumGen as TypedefMirror).referent;
-  TypeMirror IntGenRef = (IntGen as TypedefMirror).referent;
-  TypeMirror DubGenRef = (DubGen as TypedefMirror).referent;
-
-  Expect.isFalse(Func.isSubclassOf(NumPredRef));
-  Expect.isFalse(Func.isSubclassOf(IntPredRef));
-  Expect.isFalse(Func.isSubclassOf(DubPredRef));
-  Expect.isFalse(Func.isSubclassOf(NumGenRef));
-  Expect.isFalse(Func.isSubclassOf(IntGenRef));
-  Expect.isFalse(Func.isSubclassOf(DubGenRef));
-
-  // The spec doesn't require these to be either value, only that they implement
-  // Function.
-  // NumPredRef.isSubclassOf(Func);
-  // IntPredRef.isSubclassOf(Func);
-  // DubPredRef.isSubclassOf(Func);
-  // NumGenRef.isSubclassOf(Func);
-  // IntGenRef.isSubclassOf(Func);
-  // DubGenRef.isSubclassOf(Func);
-}
-
-main() {
-  test(currentMirrorSystem());
-}
diff --git a/tests/lib_2/mirrors/relation_subtype_test.dart b/tests/lib_2/mirrors/relation_subtype_test.dart
deleted file mode 100644
index b578c49bbdc..00000000000
--- a/tests/lib_2/mirrors/relation_subtype_test.dart
+++ /dev/null
@@ -1,314 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.relation_subtype;
-
-import "dart:mirrors";
-
-import "package:expect/expect.dart";
-
-class Superclass {}
-
-class Subclass1 extends Superclass {}
-
-class Subclass2 extends Superclass {}
-
-typedef bool NumberPredicate(num x);
-typedef bool IntegerPredicate(int x);
-typedef bool DoublePredicate(double x);
-
-typedef num NumberGenerator();
-typedef int IntegerGenerator();
-typedef double DoubleGenerator();
-
-class A<T> {}
-
-class B<T> extends A<T> {}
-
-class C<T extends num> {}
-
-test(MirrorSystem mirrors) {
-  LibraryMirror coreLibrary = mirrors.findLibrary(#dart.core);
-  LibraryMirror thisLibrary = mirrors.findLibrary(#test.relation_subtype);
-
-  // Classes.
-  final Super = thisLibrary.declarations[#Superclass] as ClassMirror;
-  final Sub1 = thisLibrary.declarations[#Subclass1] as ClassMirror;
-  final Sub2 = thisLibrary.declarations[#Subclass2] as ClassMirror;
-  final Obj = coreLibrary.declarations[#Object] as ClassMirror;
-  final Nul = coreLibrary.declarations[#Null] as ClassMirror;
-
-  Expect.isTrue(Obj.isSubtypeOf(Obj));
-  Expect.isTrue(Super.isSubtypeOf(Super));
-  Expect.isTrue(Sub1.isSubtypeOf(Sub1));
-  Expect.isTrue(Sub2.isSubtypeOf(Sub2));
-  Expect.isTrue(Nul.isSubtypeOf(Nul));
-
-  Expect.isTrue(Sub1.isSubtypeOf(Super));
-  Expect.isFalse(Super.isSubtypeOf(Sub1));
-
-  Expect.isTrue(Sub2.isSubtypeOf(Super));
-  Expect.isFalse(Super.isSubtypeOf(Sub2));
-
-  Expect.isFalse(Sub2.isSubtypeOf(Sub1));
-  Expect.isFalse(Sub1.isSubtypeOf(Sub2));
-
-  Expect.isTrue(Sub1.isSubtypeOf(Obj));
-  Expect.isFalse(Obj.isSubtypeOf(Sub1));
-
-  Expect.isTrue(Sub2.isSubtypeOf(Obj));
-  Expect.isFalse(Obj.isSubtypeOf(Sub2));
-
-  Expect.isTrue(Super.isSubtypeOf(Obj));
-  Expect.isFalse(Obj.isSubtypeOf(Super));
-
-  Expect.isTrue(Nul.isSubtypeOf(Obj));
-  Expect.isFalse(Obj.isSubtypeOf(Nul));
-  Expect.isTrue(Nul.isSubtypeOf(Super)); // Null type is bottom type.
-  Expect.isFalse(Super.isSubtypeOf(Nul));
-
-  // Function typedef - argument type.
-  TypeMirror Func = coreLibrary.declarations[#Function] as TypeMirror;
-  TypedefMirror NumPred =
-      thisLibrary.declarations[#NumberPredicate] as TypedefMirror;
-  TypedefMirror IntPred =
-      thisLibrary.declarations[#IntegerPredicate] as TypedefMirror;
-  TypedefMirror DubPred =
-      thisLibrary.declarations[#DoublePredicate] as TypedefMirror;
-
-  Expect.isTrue(Func.isSubtypeOf(Func));
-  Expect.isTrue(NumPred.isSubtypeOf(NumPred));
-  Expect.isTrue(IntPred.isSubtypeOf(IntPred));
-  Expect.isTrue(DubPred.isSubtypeOf(DubPred));
-
-  Expect.isTrue(NumPred.isSubtypeOf(Func));
-  Expect.isTrue(NumPred.isSubtypeOf(IntPred));
-  Expect.isTrue(NumPred.isSubtypeOf(DubPred));
-
-  Expect.isTrue(IntPred.isSubtypeOf(Func));
-  Expect.isTrue(IntPred.isSubtypeOf(NumPred));
-  Expect.isFalse(IntPred.isSubtypeOf(DubPred));
-
-  Expect.isTrue(DubPred.isSubtypeOf(Func));
-  Expect.isTrue(DubPred.isSubtypeOf(NumPred));
-  Expect.isFalse(DubPred.isSubtypeOf(IntPred));
-
-  Expect.isTrue(Func.isSubtypeOf(Obj));
-  Expect.isTrue(NumPred.isSubtypeOf(Obj));
-  Expect.isTrue(IntPred.isSubtypeOf(Obj));
-  Expect.isTrue(DubPred.isSubtypeOf(Obj));
-
-  // Function typedef - return type.
-  TypedefMirror NumGen =
-      thisLibrary.declarations[#NumberGenerator] as TypedefMirror;
-  TypedefMirror IntGen =
-      thisLibrary.declarations[#IntegerGenerator] as TypedefMirror;
-  TypedefMirror DubGen =
-      thisLibrary.declarations[#DoubleGenerator] as TypedefMirror;
-
-  Expect.isTrue(NumGen.isSubtypeOf(NumGen));
-  Expect.isTrue(IntGen.isSubtypeOf(IntGen));
-  Expect.isTrue(DubGen.isSubtypeOf(DubGen));
-
-  Expect.isTrue(NumGen.isSubtypeOf(Func));
-  Expect.isTrue(NumGen.isSubtypeOf(IntGen));
-  Expect.isTrue(NumGen.isSubtypeOf(DubGen));
-
-  Expect.isTrue(IntGen.isSubtypeOf(Func));
-  Expect.isTrue(IntGen.isSubtypeOf(NumGen));
-  Expect.isFalse(IntGen.isSubtypeOf(DubGen));
-
-  Expect.isTrue(DubGen.isSubtypeOf(Func));
-  Expect.isTrue(DubGen.isSubtypeOf(NumGen));
-  Expect.isFalse(DubGen.isSubtypeOf(IntGen));
-
-  Expect.isTrue(Func.isSubtypeOf(Obj));
-  Expect.isTrue(NumGen.isSubtypeOf(Obj));
-  Expect.isTrue(IntGen.isSubtypeOf(Obj));
-  Expect.isTrue(DubGen.isSubtypeOf(Obj));
-
-  // Function - argument type.
-  TypeMirror NumPredRef = NumPred.referent;
-  TypeMirror IntPredRef = IntPred.referent;
-  TypeMirror DubPredRef = DubPred.referent;
-
-  Expect.isTrue(Func.isSubtypeOf(Func));
-  Expect.isTrue(NumPredRef.isSubtypeOf(NumPredRef));
-  Expect.isTrue(IntPredRef.isSubtypeOf(IntPredRef));
-  Expect.isTrue(DubPredRef.isSubtypeOf(DubPredRef));
-
-  Expect.isTrue(NumPredRef.isSubtypeOf(Func));
-  Expect.isTrue(NumPredRef.isSubtypeOf(IntPredRef));
-  Expect.isTrue(NumPredRef.isSubtypeOf(DubPredRef));
-
-  Expect.isTrue(IntPredRef.isSubtypeOf(Func));
-  Expect.isTrue(IntPredRef.isSubtypeOf(NumPredRef));
-  Expect.isFalse(IntPredRef.isSubtypeOf(DubPredRef));
-
-  Expect.isTrue(DubPredRef.isSubtypeOf(Func));
-  Expect.isTrue(DubPredRef.isSubtypeOf(NumPredRef));
-  Expect.isFalse(DubPredRef.isSubtypeOf(IntPredRef));
-
-  Expect.isTrue(Func.isSubtypeOf(Obj));
-  Expect.isTrue(NumPredRef.isSubtypeOf(Obj));
-  Expect.isTrue(IntPredRef.isSubtypeOf(Obj));
-  Expect.isTrue(DubPredRef.isSubtypeOf(Obj));
-
-  // Function - return type.
-  TypeMirror NumGenRef = NumGen.referent;
-  TypeMirror IntGenRef = IntGen.referent;
-  TypeMirror DubGenRef = DubGen.referent;
-
-  Expect.isTrue(NumGenRef.isSubtypeOf(NumGenRef));
-  Expect.isTrue(IntGenRef.isSubtypeOf(IntGenRef));
-  Expect.isTrue(DubGenRef.isSubtypeOf(DubGenRef));
-
-  Expect.isTrue(NumGenRef.isSubtypeOf(Func));
-  Expect.isTrue(NumGenRef.isSubtypeOf(IntGenRef));
-  Expect.isTrue(NumGenRef.isSubtypeOf(DubGenRef));
-
-  Expect.isTrue(IntGenRef.isSubtypeOf(Func));
-  Expect.isTrue(IntGenRef.isSubtypeOf(NumGenRef));
-  Expect.isFalse(IntGenRef.isSubtypeOf(DubGenRef));
-
-  Expect.isTrue(DubGenRef.isSubtypeOf(Func));
-  Expect.isTrue(DubGenRef.isSubtypeOf(NumGenRef));
-  Expect.isFalse(DubGenRef.isSubtypeOf(IntGenRef));
-
-  Expect.isTrue(Func.isSubtypeOf(Obj));
-  Expect.isTrue(NumGenRef.isSubtypeOf(Obj));
-  Expect.isTrue(IntGenRef.isSubtypeOf(Obj));
-  Expect.isTrue(DubGenRef.isSubtypeOf(Obj));
-
-  // Function typedef / function.
-  Expect.isTrue(NumPred.isSubtypeOf(NumPredRef));
-  Expect.isTrue(IntPred.isSubtypeOf(IntPredRef));
-  Expect.isTrue(DubPred.isSubtypeOf(DubPredRef));
-  Expect.isTrue(NumPredRef.isSubtypeOf(NumPred));
-  Expect.isTrue(IntPredRef.isSubtypeOf(IntPred));
-  Expect.isTrue(DubPredRef.isSubtypeOf(DubPred));
-
-  // Function typedef / function.
-  Expect.isTrue(NumGen.isSubtypeOf(NumGenRef));
-  Expect.isTrue(IntGen.isSubtypeOf(IntGenRef));
-  Expect.isTrue(DubGen.isSubtypeOf(DubGenRef));
-  Expect.isTrue(NumGenRef.isSubtypeOf(NumGen));
-  Expect.isTrue(IntGenRef.isSubtypeOf(IntGen));
-  Expect.isTrue(DubGenRef.isSubtypeOf(DubGen));
-
-  // Type variable.
-  TypeMirror TFromA =
-      (thisLibrary.declarations[#A] as ClassMirror).typeVariables.single;
-  TypeMirror TFromB =
-      (thisLibrary.declarations[#B] as ClassMirror).typeVariables.single;
-  TypeMirror TFromC =
-      (thisLibrary.declarations[#C] as ClassMirror).typeVariables.single;
-
-  Expect.isTrue(TFromA.isSubtypeOf(TFromA));
-  Expect.isTrue(TFromB.isSubtypeOf(TFromB));
-  Expect.isTrue(TFromC.isSubtypeOf(TFromC));
-
-  Expect.isFalse(TFromA.isSubtypeOf(TFromB));
-  Expect.isFalse(TFromA.isSubtypeOf(TFromC));
-  Expect.isFalse(TFromB.isSubtypeOf(TFromA));
-  Expect.isFalse(TFromB.isSubtypeOf(TFromC));
-  Expect.isFalse(TFromC.isSubtypeOf(TFromA));
-  Expect.isFalse(TFromC.isSubtypeOf(TFromB));
-
-  TypeMirror Num = coreLibrary.declarations[#num] as TypeMirror;
-  Expect.isTrue(TFromC.isSubtypeOf(Num));
-  Expect.isFalse(Num.isSubtypeOf(TFromC));
-
-  // dynamic & void.
-  TypeMirror Dynamic = mirrors.dynamicType;
-  Expect.isTrue(Dynamic.isSubtypeOf(Dynamic));
-  Expect.isTrue(Obj.isSubtypeOf(Dynamic));
-  Expect.isTrue(Super.isSubtypeOf(Dynamic));
-  Expect.isTrue(Sub1.isSubtypeOf(Dynamic));
-  Expect.isTrue(Sub2.isSubtypeOf(Dynamic));
-  Expect.isTrue(NumPred.isSubtypeOf(Dynamic));
-  Expect.isTrue(IntPred.isSubtypeOf(Dynamic));
-  Expect.isTrue(DubPred.isSubtypeOf(Dynamic));
-  Expect.isTrue(NumPredRef.isSubtypeOf(Dynamic));
-  Expect.isTrue(IntPredRef.isSubtypeOf(Dynamic));
-  Expect.isTrue(DubPredRef.isSubtypeOf(Dynamic));
-  Expect.isTrue(NumGen.isSubtypeOf(Dynamic));
-  Expect.isTrue(IntGen.isSubtypeOf(Dynamic));
-  Expect.isTrue(DubGen.isSubtypeOf(Dynamic));
-  Expect.isTrue(NumGenRef.isSubtypeOf(Dynamic));
-  Expect.isTrue(IntGenRef.isSubtypeOf(Dynamic));
-  Expect.isTrue(DubGenRef.isSubtypeOf(Dynamic));
-  Expect.isTrue(TFromA.isSubtypeOf(Dynamic));
-  Expect.isTrue(TFromB.isSubtypeOf(Dynamic));
-  Expect.isTrue(TFromC.isSubtypeOf(Dynamic));
-  Expect.isTrue(Dynamic.isSubtypeOf(Obj));
-  Expect.isTrue(Dynamic.isSubtypeOf(Super));
-  Expect.isTrue(Dynamic.isSubtypeOf(Sub1));
-  Expect.isTrue(Dynamic.isSubtypeOf(Sub2));
-  Expect.isTrue(Dynamic.isSubtypeOf(NumPred));
-  Expect.isTrue(Dynamic.isSubtypeOf(IntPred));
-  Expect.isTrue(Dynamic.isSubtypeOf(DubPred));
-  Expect.isTrue(Dynamic.isSubtypeOf(NumPredRef));
-  Expect.isTrue(Dynamic.isSubtypeOf(IntPredRef));
-  Expect.isTrue(Dynamic.isSubtypeOf(DubPredRef));
-  Expect.isTrue(Dynamic.isSubtypeOf(NumGen));
-  Expect.isTrue(Dynamic.isSubtypeOf(IntGen));
-  Expect.isTrue(Dynamic.isSubtypeOf(DubGen));
-  Expect.isTrue(Dynamic.isSubtypeOf(NumGenRef));
-  Expect.isTrue(Dynamic.isSubtypeOf(IntGenRef));
-  Expect.isTrue(Dynamic.isSubtypeOf(DubGenRef));
-  Expect.isTrue(Dynamic.isSubtypeOf(TFromA));
-  Expect.isTrue(Dynamic.isSubtypeOf(TFromB));
-  Expect.isTrue(Dynamic.isSubtypeOf(TFromC));
-
-  TypeMirror Void = mirrors.voidType;
-  Expect.isTrue(Void.isSubtypeOf(Void));
-  Expect.isFalse(Obj.isSubtypeOf(Void));
-  Expect.isFalse(Super.isSubtypeOf(Void));
-  Expect.isFalse(Sub1.isSubtypeOf(Void));
-  Expect.isFalse(Sub2.isSubtypeOf(Void));
-  Expect.isFalse(NumPred.isSubtypeOf(Void));
-  Expect.isFalse(IntPred.isSubtypeOf(Void));
-  Expect.isFalse(DubPred.isSubtypeOf(Void));
-  Expect.isFalse(NumPredRef.isSubtypeOf(Void));
-  Expect.isFalse(IntPredRef.isSubtypeOf(Void));
-  Expect.isFalse(DubPredRef.isSubtypeOf(Void));
-  Expect.isFalse(NumGen.isSubtypeOf(Void));
-  Expect.isFalse(IntGen.isSubtypeOf(Void));
-  Expect.isFalse(DubGen.isSubtypeOf(Void));
-  Expect.isFalse(NumGenRef.isSubtypeOf(Void));
-  Expect.isFalse(IntGenRef.isSubtypeOf(Void));
-  Expect.isFalse(DubGenRef.isSubtypeOf(Void));
-  Expect.isFalse(TFromA.isSubtypeOf(Void));
-  Expect.isFalse(TFromB.isSubtypeOf(Void));
-  Expect.isFalse(TFromC.isSubtypeOf(Void));
-  Expect.isFalse(Void.isSubtypeOf(Obj));
-  Expect.isFalse(Void.isSubtypeOf(Super));
-  Expect.isFalse(Void.isSubtypeOf(Sub1));
-  Expect.isFalse(Void.isSubtypeOf(Sub2));
-  Expect.isFalse(Void.isSubtypeOf(NumPred));
-  Expect.isFalse(Void.isSubtypeOf(IntPred));
-  Expect.isFalse(Void.isSubtypeOf(DubPred));
-  Expect.isFalse(Void.isSubtypeOf(NumPredRef));
-  Expect.isFalse(Void.isSubtypeOf(IntPredRef));
-  Expect.isFalse(Void.isSubtypeOf(DubPredRef));
-  Expect.isFalse(Void.isSubtypeOf(NumGen));
-  Expect.isFalse(Void.isSubtypeOf(IntGen));
-  Expect.isFalse(Void.isSubtypeOf(DubGen));
-  Expect.isFalse(Void.isSubtypeOf(NumGenRef));
-  Expect.isFalse(Void.isSubtypeOf(IntGenRef));
-  Expect.isFalse(Void.isSubtypeOf(DubGenRef));
-  Expect.isFalse(Void.isSubtypeOf(TFromA));
-  Expect.isFalse(Void.isSubtypeOf(TFromB));
-  Expect.isFalse(Void.isSubtypeOf(TFromC));
-
-  Expect.isTrue(Dynamic.isSubtypeOf(Void));
-  Expect.isTrue(Void.isSubtypeOf(Dynamic));
-}
-
-main() {
-  test(currentMirrorSystem());
-}
diff --git a/tests/lib_2/mirrors/repeated_private_anon_mixin_app1.dart b/tests/lib_2/mirrors/repeated_private_anon_mixin_app1.dart
deleted file mode 100644
index 635f0939a22..00000000000
--- a/tests/lib_2/mirrors/repeated_private_anon_mixin_app1.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib1;
-
-class _S {}
-
-class _M {}
-
-class _M2 {}
-
-class MA extends _S with _M {}
-
-class MA2 extends _S with _M, _M2 {}
diff --git a/tests/lib_2/mirrors/repeated_private_anon_mixin_app2.dart b/tests/lib_2/mirrors/repeated_private_anon_mixin_app2.dart
deleted file mode 100644
index 15d37a07620..00000000000
--- a/tests/lib_2/mirrors/repeated_private_anon_mixin_app2.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib2;
-
-class _S {}
-
-class _M {}
-
-class _M2 {}
-
-class MA extends _S with _M {}
-
-class MA2 extends _S with _M, _M2 {}
diff --git a/tests/lib_2/mirrors/repeated_private_anon_mixin_app_test.dart b/tests/lib_2/mirrors/repeated_private_anon_mixin_app_test.dart
deleted file mode 100644
index e68eeb0e33c..00000000000
--- a/tests/lib_2/mirrors/repeated_private_anon_mixin_app_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.repeated_private_anon_mixin_app;
-
-// Regression test for symbol mangling.
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-import 'repeated_private_anon_mixin_app1.dart' as lib1;
-import 'repeated_private_anon_mixin_app2.dart' as lib2;
-
-testMA() {
-  Symbol name1 = reflectClass(lib1.MA).superclass.simpleName;
-  Symbol name2 = reflectClass(lib2.MA).superclass.simpleName;
-
-  Expect.equals('lib._S with lib._M', MirrorSystem.getName(name1));
-  Expect.equals('lib._S with lib._M', MirrorSystem.getName(name2));
-
-  Expect.notEquals(name1, name2);
-  Expect.notEquals(name2, name1);
-}
-
-testMA2() {
-  Symbol name1 = reflectClass(lib1.MA2).superclass.simpleName;
-  Symbol name2 = reflectClass(lib2.MA2).superclass.simpleName;
-
-  Expect.equals('lib._S with lib._M, lib._M2', MirrorSystem.getName(name1));
-  Expect.equals('lib._S with lib._M, lib._M2', MirrorSystem.getName(name2));
-
-  Expect.notEquals(name1, name2);
-  Expect.notEquals(name2, name1);
-}
-
-main() {
-  testMA();
-  testMA2();
-}
diff --git a/tests/lib_2/mirrors/return_type_test.dart b/tests/lib_2/mirrors/return_type_test.dart
deleted file mode 100644
index 4cc3556b0b4..00000000000
--- a/tests/lib_2/mirrors/return_type_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Test of [MethodMirror.returnType].
-library test.return_type_test;
-
-import 'dart:mirrors';
-
-import 'stringify.dart';
-
-class B {
-  f() {}
-  int g() {}
-  List h() {}
-  B i() {}
-
-  // TODO(ahe): Test this when dart2js handles parameterized types.
-  // List<int> j() {}
-}
-
-methodsOf(ClassMirror cm) {
-  var result = new Map();
-  cm.declarations.forEach((k, v) {
-    if (v is MethodMirror && v.isRegularMethod) result[k] = v;
-  });
-  return result;
-}
-
-main() {
-  var methods = methodsOf(reflectClass(B));
-
-  expect(
-      '{f: Method(s(f) in s(B)), '
-      'g: Method(s(g) in s(B)), '
-      'h: Method(s(h) in s(B)), '
-      'i: Method(s(i) in s(B))}',
-      methods);
-
-  var f = methods[#f];
-  var g = methods[#g];
-  var h = methods[#h];
-  var i = methods[#i];
-
-  expect('Type(s(dynamic), top-level)', f.returnType);
-  expect('Class(s(int) in s(dart.core), top-level)', g.returnType);
-  expect('Class(s(List) in s(dart.core), top-level)', h.returnType);
-  expect('Class(s(B) in s(test.return_type_test), top-level)', i.returnType);
-}
diff --git a/tests/lib_2/mirrors/runtime_type_test.dart b/tests/lib_2/mirrors/runtime_type_test.dart
deleted file mode 100644
index c105b3d7418..00000000000
--- a/tests/lib_2/mirrors/runtime_type_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.runtime_type_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class A {}
-
-class B {
-  get runtimeType => A;
-}
-
-main() {
-  Expect.equals(reflect(new B()).type, reflectClass(B));
-}
diff --git a/tests/lib_2/mirrors/set_field_with_final_inheritance_test.dart b/tests/lib_2/mirrors/set_field_with_final_inheritance_test.dart
deleted file mode 100644
index 6ad0711dbff..00000000000
--- a/tests/lib_2/mirrors/set_field_with_final_inheritance_test.dart
+++ /dev/null
@@ -1,114 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.set_field_with_final_inheritance;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-class S {
-  var sideEffect = 0;
-
-  var mutableWithInheritedMutable = 1;
-  final mutableWithInheritedFinal = 2;
-  set mutableWithInheritedSetter(x) => sideEffect = 3;
-
-  var finalWithInheritedMutable = 4;
-  final finalWithInheritedFinal = 5;
-  set finalWithInheritedSetter(x) => sideEffect = 6;
-
-  var setterWithInheritedMutable = 7;
-  final setterWithInheritedFinal = 8;
-  set setterWithInheritedSetter(x) => sideEffect = 9;
-}
-
-class C extends S {
-  var mutableWithInheritedMutable = 10;
-  var mutableWithInheritedFinal = 11;
-  var mutableWithInheritedSetter = 12;
-
-  final finalWithInheritedMutable = 13;
-  final finalWithInheritedFinal = 14;
-  final finalWithInheritedSetter = 15;
-
-  set setterWithInheritedMutable(x) => sideEffect = 16;
-  set setterWithInheritedFinal(x) => sideEffect = 17;
-  set setterWithInheritedSetter(x) => sideEffect = 18;
-
-  get superMutableWithInheritedMutable => super.mutableWithInheritedMutable;
-  get superMutableWithInheritedFinal => super.mutableWithInheritedFinal;
-
-  get superFinalWithInheritedMutable => super.finalWithInheritedMutable;
-  get superFinalWithInheritedFinal => super.finalWithInheritedFinal;
-
-  get superSetterWithInheritedMutable => super.setterWithInheritedMutable;
-  get superSetterWithInheritedFinal => super.setterWithInheritedFinal;
-}
-
-main() {
-  C c;
-  InstanceMirror im;
-
-  c = new C();
-  im = reflect(c);
-  Expect.equals(19, im.setField(#mutableWithInheritedMutable, 19).reflectee);
-  Expect.equals(19, c.mutableWithInheritedMutable);
-  Expect.equals(1, c.superMutableWithInheritedMutable);
-  Expect.equals(0, c.sideEffect);
-
-  c = new C();
-  im = reflect(c);
-  Expect.equals(20, im.setField(#mutableWithInheritedFinal, 20).reflectee);
-  Expect.equals(20, c.mutableWithInheritedFinal);
-  Expect.equals(2, c.superMutableWithInheritedFinal);
-  Expect.equals(0, c.sideEffect);
-
-  c = new C();
-  im = reflect(c);
-  Expect.equals(21, im.setField(#mutableWithInheritedSetter, 21).reflectee);
-  Expect.equals(21, c.mutableWithInheritedSetter);
-  Expect.equals(0, c.sideEffect);
-
-  c = new C();
-  im = reflect(c);
-  Expect.equals(22, im.setField(#finalWithInheritedMutable, 22).reflectee);
-  Expect.equals(13, c.finalWithInheritedMutable);
-  Expect.equals(22, c.superFinalWithInheritedMutable);
-  Expect.equals(0, c.sideEffect);
-
-  c = new C();
-  im = reflect(c);
-  Expect.throwsNoSuchMethodError(
-      () => im.setField(#finalWithInheritedFinal, 23));
-  Expect.equals(14, c.finalWithInheritedFinal);
-  Expect.equals(5, c.superFinalWithInheritedFinal);
-  Expect.equals(0, c.sideEffect);
-
-  c = new C();
-  im = reflect(c);
-  Expect.equals(24, im.setField(#finalWithInheritedSetter, 24).reflectee);
-  Expect.equals(15, c.finalWithInheritedSetter);
-  Expect.equals(6, c.sideEffect);
-
-  c = new C();
-  im = reflect(c);
-  Expect.equals(25, im.setField(#setterWithInheritedMutable, 25).reflectee);
-  Expect.equals(7, c.setterWithInheritedMutable);
-  Expect.equals(7, c.superSetterWithInheritedMutable);
-  Expect.equals(16, c.sideEffect);
-
-  c = new C();
-  im = reflect(c);
-  Expect.equals(26, im.setField(#setterWithInheritedFinal, 26).reflectee);
-  Expect.equals(8, c.setterWithInheritedFinal);
-  Expect.equals(8, c.superSetterWithInheritedFinal);
-  Expect.equals(17, c.sideEffect);
-
-  c = new C();
-  im = reflect(c);
-  Expect.equals(27, im.setField(#setterWithInheritedSetter, 27).reflectee);
-  Expect.equals(18, c.sideEffect);
-}
diff --git a/tests/lib_2/mirrors/set_field_with_final_test.dart b/tests/lib_2/mirrors/set_field_with_final_test.dart
deleted file mode 100644
index 1c85ffdb678..00000000000
--- a/tests/lib_2/mirrors/set_field_with_final_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.set_field_with_final;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-class C {
-  final instanceField = 1;
-  get instanceGetter => 2;
-  static final staticFinal = 3;
-  static get staticGetter => 4;
-}
-
-final toplevelFinal = 5;
-get toplevelGetter => 6;
-
-main() {
-  InstanceMirror im = reflect(new C());
-  Expect.throwsNoSuchMethodError(() => im.setField(#instanceField, 7));
-  Expect.throwsNoSuchMethodError(() => im.setField(#instanceGetter, 8));
-
-  ClassMirror cm = im.type;
-  Expect.throwsNoSuchMethodError(() => cm.setField(#staticFinal, 9));
-  Expect.throwsNoSuchMethodError(() => cm.setField(#staticGetter, 10));
-
-  LibraryMirror lm = cm.owner as LibraryMirror;
-  Expect.throwsNoSuchMethodError(() => lm.setField(#toplevelFinal, 11));
-  Expect.throwsNoSuchMethodError(() => lm.setField(#toplevelGetter, 12));
-}
diff --git a/tests/lib_2/mirrors/spawn_function_root_library_test.dart b/tests/lib_2/mirrors/spawn_function_root_library_test.dart
deleted file mode 100644
index 4f069ec9875..00000000000
--- a/tests/lib_2/mirrors/spawn_function_root_library_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib;
-
-import 'dart:mirrors';
-import 'dart:isolate';
-import 'package:expect/expect.dart';
-
-child(SendPort port) {
-  LibraryMirror root = currentMirrorSystem().isolate.rootLibrary;
-  Expect.isNotNull(root);
-  port.send(root.uri.toString());
-}
-
-main() {
-  final port = new RawReceivePort();
-  port.handler = (String childRootUri) {
-    LibraryMirror root = currentMirrorSystem().isolate.rootLibrary;
-    Expect.isNotNull(root);
-    Expect.equals(root.uri.toString(), childRootUri);
-    port.close();
-  };
-
-  Isolate.spawn(child, port.sendPort);
-}
diff --git a/tests/lib_2/mirrors/static_const_field_test.dart b/tests/lib_2/mirrors/static_const_field_test.dart
deleted file mode 100644
index f15004eb28d..00000000000
--- a/tests/lib_2/mirrors/static_const_field_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that static const fields are accessible by reflection.
-// Regression test for http://dartbug.com/23811.
-
-import "dart:mirrors";
-import "package:expect/expect.dart";
-
-class A {
-  static const ONE = 1;
-}
-
-main() {
-  Expect.equals(1, reflectClass(A).getField(#ONE).reflectee);
-}
diff --git a/tests/lib_2/mirrors/static_members_easier_test.dart b/tests/lib_2/mirrors/static_members_easier_test.dart
deleted file mode 100644
index a7dd1d5ca86..00000000000
--- a/tests/lib_2/mirrors/static_members_easier_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.static_members;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-import 'stringify.dart';
-import 'declarations_model_easier.dart' as declarations_model;
-
-selectKeys<K, V>(Map<K, V> map, bool Function(V) predicate) {
-  return map.keys.where((K key) => predicate(map[key]));
-}
-
-main() {
-  ClassMirror cm = reflectClass(declarations_model.Class);
-  LibraryMirror lm = cm.owner as LibraryMirror;
-
-  Expect.setEquals([
-    #staticVariable,
-    const Symbol('staticVariable='),
-    #staticGetter,
-    const Symbol('staticSetter='),
-    #staticMethod,
-  ], selectKeys(cm.staticMembers, (dm) => true));
-
-  Expect.setEquals([#staticVariable, const Symbol('staticVariable=')],
-      selectKeys(cm.staticMembers, (dm) => dm.isSynthetic));
-}
diff --git a/tests/lib_2/mirrors/static_members_test.dart b/tests/lib_2/mirrors/static_members_test.dart
deleted file mode 100644
index bed5f91bdab..00000000000
--- a/tests/lib_2/mirrors/static_members_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.static_members;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-import 'stringify.dart';
-import 'declarations_model.dart' as declarations_model;
-
-selectKeys<K, V>(Map<K, V> map, bool Function(V) predicate) {
-  return map.keys.where((K key) => predicate(map[key]));
-}
-
-main() {
-  ClassMirror cm = reflectClass(declarations_model.Class);
-  LibraryMirror lm = cm.owner as LibraryMirror;
-
-  Expect.setEquals([
-    #staticVariable,
-    const Symbol('staticVariable='),
-    #staticGetter,
-    const Symbol('staticSetter='),
-    #staticMethod,
-    MirrorSystem.getSymbol('_staticVariable', lm),
-    MirrorSystem.getSymbol('_staticVariable=', lm),
-    MirrorSystem.getSymbol('_staticGetter', lm),
-    MirrorSystem.getSymbol('_staticSetter=', lm),
-    MirrorSystem.getSymbol('_staticMethod', lm),
-  ], selectKeys(cm.staticMembers, (dm) => true));
-
-  Expect.setEquals([
-    #staticVariable,
-    const Symbol('staticVariable='),
-    MirrorSystem.getSymbol('_staticVariable', lm),
-    MirrorSystem.getSymbol('_staticVariable=', lm)
-  ], selectKeys(cm.staticMembers, (dm) => dm.isSynthetic));
-}
diff --git a/tests/lib_2/mirrors/static_metatarget_test.dart b/tests/lib_2/mirrors/static_metatarget_test.dart
deleted file mode 100644
index 43b7388f3c8..00000000000
--- a/tests/lib_2/mirrors/static_metatarget_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for the combined use of metatargets and static fields with
-// annotations.
-
-import 'dart:mirrors';
-
-class A {
-  @reflectable
-  var reflectableField = 0; //# 01: ok
-
-  @UsedOnlyAsMetadata()
-  var unreflectableField = 1; //# 02: ok
-
-  @reflectable
-  static var reflectableStaticField = 2; //# 03: ok
-
-  @UsedOnlyAsMetadata()
-  static var unreflectableStaticField = 3;
-}
-
-class Reflectable {
-  const Reflectable();
-}
-
-const Reflectable reflectable = const Reflectable();
-
-class UsedOnlyAsMetadata {
-  const UsedOnlyAsMetadata();
-}
-
-void main() {
-  print(new A());
-}
diff --git a/tests/lib_2/mirrors/static_test.dart b/tests/lib_2/mirrors/static_test.dart
deleted file mode 100644
index fc15e8e09f0..00000000000
--- a/tests/lib_2/mirrors/static_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test static members.
-
-library lib;
-
-import 'dart:mirrors';
-
-import 'stringify.dart';
-
-class Foo {
-  static String bar = '...';
-  String aux = '';
-  static foo() {}
-  baz() {}
-}
-
-void main() {
-  expect('Variable(s(aux) in s(Foo))',
-      reflectClass(Foo).declarations[new Symbol('aux')]);
-  expect('Method(s(baz) in s(Foo))',
-      reflectClass(Foo).declarations[new Symbol('baz')]);
-  expect('<null>', reflectClass(Foo).declarations[new Symbol('aux=')]);
-  expect('Method(s(foo) in s(Foo), static)',
-      reflectClass(Foo).declarations[new Symbol('foo')]);
-  expect('Variable(s(bar) in s(Foo), static)',
-      reflectClass(Foo).declarations[new Symbol('bar')]);
-}
diff --git a/tests/lib_2/mirrors/stringify.dart b/tests/lib_2/mirrors/stringify.dart
deleted file mode 100644
index 0cf1b2589ea..00000000000
--- a/tests/lib_2/mirrors/stringify.dart
+++ /dev/null
@@ -1,192 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Helper methods for converting a [Mirror] to a [String].
-library test.stringify;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-String name(DeclarationMirror mirror) {
-  return (mirror == null) ? '<null>' : stringify(mirror.simpleName);
-}
-
-String stringifyMap(Map map) {
-  var buffer = new StringBuffer();
-  bool first = true;
-  var names = map.keys.map((s) => MirrorSystem.getName(s)).toList()..sort();
-  for (String key in names) {
-    if (!first) buffer.write(', ');
-    first = false;
-    buffer.write(key);
-    buffer.write(': ');
-    buffer.write(stringify(map[new Symbol(key)]));
-  }
-  return '{$buffer}';
-}
-
-String stringifyIterable(Iterable list) {
-  var buffer = new StringBuffer();
-  bool first = true;
-  for (String value in list.map(stringify)) {
-    if (!first) buffer.write(', ');
-    first = false;
-    buffer.write(value);
-  }
-  return '[$buffer]';
-}
-
-String stringifyInstance(InstanceMirror instance) {
-  var buffer = new StringBuffer();
-  if (instance.hasReflectee) {
-    buffer.write('value = ${stringify(instance.reflectee)}');
-  }
-  return 'Instance(${buffer})';
-}
-
-String stringifySymbol(Symbol symbol) => 's(${MirrorSystem.getName(symbol)})';
-
-void writeDeclarationOn(DeclarationMirror mirror, StringBuffer buffer) {
-  buffer.write(stringify(mirror.simpleName));
-  if (mirror.owner != null) {
-    buffer.write(' in ');
-    buffer.write(name(mirror.owner));
-  }
-  if (mirror.isPrivate) buffer.write(', private');
-  if (mirror.isTopLevel) buffer.write(', top-level');
-}
-
-void writeVariableOn(VariableMirror variable, StringBuffer buffer) {
-  writeDeclarationOn(variable, buffer);
-  if (variable.isStatic) buffer.write(', static');
-  if (variable.isFinal) buffer.write(', final');
-}
-
-String stringifyVariable(VariableMirror variable) {
-  var buffer = new StringBuffer();
-  writeVariableOn(variable, buffer);
-  return 'Variable($buffer)';
-}
-
-String stringifyParameter(ParameterMirror parameter) {
-  var buffer = new StringBuffer();
-  writeVariableOn(parameter, buffer);
-  if (parameter.isOptional) buffer.write(', optional');
-  if (parameter.isNamed) buffer.write(', named');
-  // TODO(6490): dart2js always returns false for hasDefaultValue.
-  if (parameter.hasDefaultValue) {
-    buffer.write(', value = ${stringify(parameter.defaultValue)}');
-  }
-  // TODO(ahe): Move to writeVariableOn.
-  buffer.write(', type = ${stringify(parameter.type)}');
-  return 'Parameter($buffer)';
-}
-
-String stringifyTypeVariable(TypeVariableMirror typeVariable) {
-  var buffer = new StringBuffer();
-  writeDeclarationOn(typeVariable, buffer);
-  buffer.write(', upperBound = ${stringify(typeVariable.upperBound)}');
-  return 'TypeVariable($buffer)';
-}
-
-String stringifyType(TypeMirror type) {
-  var buffer = new StringBuffer();
-  writeDeclarationOn(type, buffer);
-  return 'Type($buffer)';
-}
-
-String stringifyClass(ClassMirror cls) {
-  var buffer = new StringBuffer();
-  writeDeclarationOn(cls, buffer);
-  return 'Class($buffer)';
-}
-
-String stringifyMethod(MethodMirror method) {
-  var buffer = new StringBuffer();
-  writeDeclarationOn(method, buffer);
-  if (method.isAbstract) buffer.write(', abstract');
-  if (method.isSynthetic) buffer.write(', synthetic');
-  if (method.isStatic) buffer.write(', static');
-  if (method.isGetter) buffer.write(', getter');
-  if (method.isSetter) buffer.write(', setter');
-  if (method.isConstructor) buffer.write(', constructor');
-  return 'Method($buffer)';
-}
-
-String stringifyDependencies(LibraryMirror l) {
-  n(s) => s is Symbol ? MirrorSystem.getName(s) : s;
-  int compareDep(a, b) {
-    if (a.targetLibrary == b.targetLibrary) {
-      if ((a.prefix != null) && (b.prefix != null)) {
-        return n(a.prefix).compareTo(n(b.prefix));
-      }
-      return a.prefix == null ? 1 : -1;
-    }
-    return n(a.targetLibrary.simpleName)
-        .compareTo(n(b.targetLibrary.simpleName));
-  }
-
-  int compareCom(a, b) => n(a.identifier).compareTo(n(b.identifier));
-  int compareFirst(a, b) => a[0].compareTo(b[0]);
-  sortBy(c, p) => new List.from(c)..sort(p);
-
-  var buffer = new StringBuffer();
-  sortBy(l.libraryDependencies, compareDep).forEach((dep) {
-    if (dep.isImport) buffer.write('import ');
-    if (dep.isExport) buffer.write('export ');
-    buffer.write(n(dep.targetLibrary.simpleName));
-    if (dep.isDeferred) buffer.write(' deferred');
-    if (dep.prefix != null) buffer.write(' as ${n(dep.prefix)}');
-    buffer.write('\n');
-
-    List flattenedCombinators = [];
-    dep.combinators.forEach((com) {
-      com.identifiers.forEach((ident) {
-        flattenedCombinators.add([n(ident), com.isShow, com.isHide]);
-      });
-    });
-    sortBy(flattenedCombinators, compareFirst).forEach((triple) {
-      buffer.write(' ');
-      if (triple[1]) buffer.write('show ');
-      if (triple[2]) buffer.write('hide ');
-      buffer.write(triple[0]);
-      buffer.write('\n');
-    });
-  });
-  return buffer.toString();
-}
-
-String stringify(value) {
-  if (value == null) return '<null>';
-  if (value is Map) return stringifyMap(value);
-  if (value is Iterable) return stringifyIterable(value);
-  if (value is InstanceMirror) return stringifyInstance(value);
-  if (value is ParameterMirror) return stringifyParameter(value);
-  if (value is VariableMirror) return stringifyVariable(value);
-  if (value is MethodMirror) return stringifyMethod(value);
-  if (value is num) return value.toString();
-  if (value is String) return value;
-  if (value is Symbol) return stringifySymbol(value);
-  if (value is ClassMirror) return stringifyClass(value);
-  if (value is TypeVariableMirror) return stringifyTypeVariable(value);
-  if (value is TypeMirror) return stringifyType(value);
-  throw 'Unexpected value: $value';
-}
-
-void expect(expected, actual, [String reason = ""]) {
-  Expect.stringEquals(expected, stringify(actual), reason);
-}
-
-int compareSymbols(Symbol a, Symbol b) {
-  return MirrorSystem.getName(a).compareTo(MirrorSystem.getName(b));
-}
-
-Iterable<Symbol> simpleNames(Iterable<Mirror> i) =>
-    i.map((e) => (e as DeclarationMirror).simpleName);
-
-List<Symbol> sort(Iterable<Symbol> symbols) =>
-    symbols.toList()..sort(compareSymbols);
diff --git a/tests/lib_2/mirrors/superclass2_test.dart b/tests/lib_2/mirrors/superclass2_test.dart
deleted file mode 100644
index c7575ea9cc8..00000000000
--- a/tests/lib_2/mirrors/superclass2_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.superclass;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-checkSuperclassChain(ClassMirror cm) {
-  ClassMirror last;
-  do {
-    last = cm;
-    cm = cm.superclass;
-  } while (cm != null);
-  Expect.equals(reflectClass(Object), last);
-}
-
-main() {
-  checkSuperclassChain(reflect(null).type);
-  checkSuperclassChain(reflect([]).type);
-  checkSuperclassChain(reflect(<int>[]).type);
-  checkSuperclassChain(reflect(0).type);
-  checkSuperclassChain(reflect(1.5).type);
-  checkSuperclassChain(reflect("str").type);
-  checkSuperclassChain(reflect(true).type);
-  checkSuperclassChain(reflect(false).type);
-}
diff --git a/tests/lib_2/mirrors/superclass_test.dart b/tests/lib_2/mirrors/superclass_test.dart
deleted file mode 100644
index e500bfa5501..00000000000
--- a/tests/lib_2/mirrors/superclass_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.superclass;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-class MyClass {}
-
-main() {
-  var cls = reflectClass(MyClass);
-  Expect.isNotNull(cls, 'Failed to reflect on MyClass.');
-  var superclass = cls.superclass;
-  Expect.isNotNull(superclass, 'Failed to obtain superclass of MyClass.');
-  Expect.equals(
-      reflectClass(Object), superclass, 'Superclass of MyClass is not Object.');
-  Expect.isNull(superclass.superclass, 'Superclass of Object is not null.');
-}
diff --git a/tests/lib_2/mirrors/symbol_validation_test.dart b/tests/lib_2/mirrors/symbol_validation_test.dart
deleted file mode 100644
index 60d78ba4110..00000000000
--- a/tests/lib_2/mirrors/symbol_validation_test.dart
+++ /dev/null
@@ -1,170 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library symbol_validation_test;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-validSymbol(String string) {
-  Expect.equals(string, MirrorSystem.getName(new Symbol(string)),
-      'Valid symbol "$string" should be invertable');
-  Expect.equals(string, MirrorSystem.getName(MirrorSystem.getSymbol(string)),
-      'Valid symbol "$string" should be invertable');
-}
-
-invalidSymbol(String string) {
-  Expect.throwsArgumentError(() => new Symbol(string),
-      'Invalid symbol "$string" should be rejected');
-  Expect.throwsArgumentError(() => MirrorSystem.getSymbol(string),
-      'Invalid symbol "$string" should be rejected');
-}
-
-validPrivateSymbol(String string) {
-  ClosureMirror closure = reflect(main) as ClosureMirror;
-  LibraryMirror library = closure.function.owner as LibraryMirror;
-  Expect.equals(
-      string,
-      MirrorSystem.getName(MirrorSystem.getSymbol(string, library)),
-      'Valid private symbol "$string" should be invertable');
-}
-
-main() {
-  // Operators that can be declared as class member operators.
-  // These are all valid as symbols.
-  var operators = [
-    '%',
-    '&',
-    '*',
-    '+',
-    '-',
-    '/',
-    '<',
-    '<<',
-    '<=',
-    '==',
-    '>',
-    '>=',
-    '>>',
-    '[]',
-    '[]=',
-    '^',
-    'unary-',
-    '|',
-    '~',
-    '~/'
-  ];
-  operators.expand((op) => [op, "x.$op"]).forEach(validSymbol);
-  operators
-      .expand((op) => [".$op", "$op.x", "x$op", "_x.$op"])
-      .forEach(invalidSymbol);
-  operators
-      .expand<String>((op) => operators.contains("$op=") ? [] : ["x.$op=", "$op="])
-      .forEach(invalidSymbol);
-
-  var simpleSymbols = [
-    'foo',
-    'bar_',
-    'baz.quz',
-    'fisk1',
-    'hest2fisk',
-    'a.b.c.d.e',
-    r'$',
-    r'foo$',
-    r'bar$bar',
-    r'$.$',
-    r'x6$_',
-    r'$6_',
-    r'x.$$6_',
-    'x_',
-    'x_.x_',
-    'unary',
-    'x.unary'
-  ];
-  simpleSymbols.expand((s) => [s, "s="]).forEach(validSymbol);
-
-  var nonSymbols = [
-    // Non-identifiers.
-    '6', '0foo', ',', 'S with M', '_invalid&private', "#foo", " foo", "foo ",
-    // Operator variants.
-    '+=', '()', 'operator+', 'unary+', '>>>', "&&", "||", "!", "@", "#", "[",
-    // Private symbols.
-    '_', '_x', 'x._y', 'x._',
-    // Empty parts of "qualified" symbols.
-    '.', 'x.', '.x', 'x..y'
-  ];
-  nonSymbols.forEach(invalidSymbol);
-
-  // Reserved words are not valid identifiers and therefore not valid symbols.
-  var reservedWords = [
-    "assert",
-    "break",
-    "case",
-    "catch",
-    "class",
-    "const",
-    "continue",
-    "default",
-    "do",
-    "else",
-    "enum",
-    "extends",
-    "false",
-    "final",
-    "finally",
-    "for",
-    "if",
-    "in",
-    "is",
-    "new",
-    "null",
-    "rethrow",
-    "return",
-    "super",
-    "switch",
-    "this",
-    "throw",
-    "true",
-    "try",
-    "var",
-    "void",
-    "while",
-    "with"
-  ];
-  reservedWords
-      .expand((w) => [w, "$w=", "x.$w", "$w.x", "x.$w.x"])
-      .forEach(invalidSymbol);
-  reservedWords
-      .expand((w) => ["${w}_", "${w}\$", "${w}q"])
-      .forEach(validSymbol);
-
-  // Built-in identifiers are valid identifiers that are restricted from being
-  // used in some cases, but they are all valid symbols.
-  var builtInIdentifiers = [
-    "abstract",
-    "as",
-    "dynamic",
-    "export",
-    "external",
-    "factory",
-    "get",
-    "implements",
-    "import",
-    "library",
-    "operator",
-    "part",
-    "set",
-    "static",
-    "typedef"
-  ];
-  builtInIdentifiers
-      .expand((w) => [w, "$w=", "x.$w", "$w.x", "x.$w.x", "$w=", "x.$w="])
-      .forEach(validSymbol);
-
-  var privateSymbols = ['_', '_x', 'x._y', 'x._', 'x.y._', 'x._.y', '_true'];
-  privateSymbols.forEach(invalidSymbol);
-  privateSymbols.forEach(validPrivateSymbol); //  //# 01: ok
-}
diff --git a/tests/lib_2/mirrors/syntax_error_test.dart b/tests/lib_2/mirrors/syntax_error_test.dart
deleted file mode 100644
index 166dbfdd958..00000000000
--- a/tests/lib_2/mirrors/syntax_error_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for Issue 15744
-// Also, tests that syntax errors in reflected classes are reported correctly.
-
-library lib;
-
-import 'dart:mirrors';
-
-class MD {
-  final String name;
-  const MD({this.name});
-}
-
-@MD(name: 'A')
-class A {}
-
-@MD(name: 'B')
-class B {
-  static x = { 0: 0; }; // //# 01: compile-time error
-}
-
-main() {
-  reflectClass(A).metadata;
-  reflectClass(B).newInstance(Symbol.empty, []);
-}
diff --git a/tests/lib_2/mirrors/synthetic_accessor_properties_test.dart b/tests/lib_2/mirrors/synthetic_accessor_properties_test.dart
deleted file mode 100644
index 6e65b692963..00000000000
--- a/tests/lib_2/mirrors/synthetic_accessor_properties_test.dart
+++ /dev/null
@@ -1,74 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.synthetic_accessor_properties;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-import 'stringify.dart';
-
-class C {
-  String instanceField = "1";
-  final num finalInstanceField = 2;
-
-  static bool staticField = false;
-  static final int finalStaticField = 4;
-}
-
-String topLevelField = "5";
-final double finalTopLevelField = 6.0;
-
-main() {
-  ClassMirror cm = reflectClass(C);
-  LibraryMirror lm = cm.owner as LibraryMirror;
-  MethodMirror mm;
-  ParameterMirror pm;
-
-  mm = cm.instanceMembers[#instanceField] as MethodMirror;
-  expect('Method(s(instanceField) in s(C), synthetic, getter)', mm);
-  Expect.equals(reflectClass(String), mm.returnType);
-  Expect.listEquals([], mm.parameters);
-
-  mm = cm.instanceMembers[const Symbol('instanceField=')] as MethodMirror;
-  expect('Method(s(instanceField=) in s(C), synthetic, setter)', mm);
-  Expect.equals(reflectClass(String), mm.returnType);
-  pm = mm.parameters.single;
-  expect(
-      'Parameter(s(instanceField) in s(instanceField=), final,'
-      ' type = Class(s(String) in s(dart.core), top-level))',
-      pm);
-
-  mm = cm.instanceMembers[#finalInstanceField] as MethodMirror;
-  expect('Method(s(finalInstanceField) in s(C), synthetic, getter)', mm);
-  Expect.equals(reflectClass(num), mm.returnType);
-  Expect.listEquals([], mm.parameters);
-
-  mm = cm.instanceMembers[const Symbol('finalInstanceField=')] as MethodMirror;
-  Expect.isNull(mm);
-
-  mm = cm.staticMembers[#staticField] as MethodMirror;
-  expect('Method(s(staticField) in s(C), synthetic, static, getter)', mm);
-  Expect.equals(reflectClass(bool), mm.returnType);
-  Expect.listEquals([], mm.parameters);
-
-  mm = cm.staticMembers[const Symbol('staticField=')] as MethodMirror;
-  expect('Method(s(staticField=) in s(C), synthetic, static, setter)', mm);
-  Expect.equals(reflectClass(bool), mm.returnType);
-  pm = mm.parameters.single;
-  expect(
-      'Parameter(s(staticField) in s(staticField=), final,'
-      ' type = Class(s(bool) in s(dart.core), top-level))',
-      pm);
-
-  mm = cm.staticMembers[#finalStaticField] as MethodMirror;
-  expect('Method(s(finalStaticField) in s(C), synthetic, static, getter)', mm);
-  Expect.equals(reflectClass(int), mm.returnType);
-  Expect.listEquals([], mm.parameters);
-
-  mm = cm.staticMembers[const Symbol('finalStaticField=')] as MethodMirror;
-  Expect.isNull(mm);
-}
diff --git a/tests/lib_2/mirrors/to_string_test.dart b/tests/lib_2/mirrors/to_string_test.dart
deleted file mode 100644
index ce657162dbd..00000000000
--- a/tests/lib_2/mirrors/to_string_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.to_string_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-expect(expected, actual) => Expect.stringEquals(expected, '$actual');
-
-class Foo {
-  var field;
-  method() {}
-}
-
-main() {
-  var mirrors = currentMirrorSystem();
-  expect("TypeMirror on 'dynamic'", mirrors.dynamicType);
-  expect("TypeMirror on 'void'", mirrors.voidType);
-  expect("LibraryMirror on 'test.to_string_test'",
-      mirrors.findLibrary(#test.to_string_test));
-  expect("InstanceMirror on 1", reflect(1));
-  expect("ClassMirror on 'Foo'", reflectClass(Foo));
-  expect("VariableMirror on 'field'", reflectClass(Foo).declarations[#field]);
-  expect("MethodMirror on 'method'", reflectClass(Foo).declarations[#method]);
-  String s = reflect(main).toString();
-  Expect.isTrue(s.startsWith("ClosureMirror on '"), s);
-}
diff --git a/tests/lib_2/mirrors/top_level_accessors_test.dart b/tests/lib_2/mirrors/top_level_accessors_test.dart
deleted file mode 100644
index 826e65a2173..00000000000
--- a/tests/lib_2/mirrors/top_level_accessors_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.top_level_accessors_test;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-var field;
-
-get accessor => field;
-
-set accessor(value) {
-  field = value;
-  return 'fisk'; //# 01: compile-time error
-}
-
-main() {
-  LibraryMirror library =
-      currentMirrorSystem().findLibrary(#test.top_level_accessors_test);
-  field = 42;
-  Expect.equals(42, library.getField(#accessor).reflectee);
-  Expect.equals(87, library.setField(#accessor, 87).reflectee);
-  Expect.equals(87, field);
-  Expect.equals(87, library.getField(#accessor).reflectee);
-}
diff --git a/tests/lib_2/mirrors/type_argument_is_type_variable_test.dart b/tests/lib_2/mirrors/type_argument_is_type_variable_test.dart
deleted file mode 100644
index 733e5757071..00000000000
--- a/tests/lib_2/mirrors/type_argument_is_type_variable_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.type_argument_is_type_variable;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-import 'generics_helper.dart';
-
-class SuperSuper<SS> {}
-
-class Super<S> extends SuperSuper<S> {}
-
-class Generic<G> extends Super<G> {}
-
-main() {
-  // Declarations.
-  ClassMirror generic = reflectClass(Generic);
-  ClassMirror superOfGeneric = generic.superclass;
-  ClassMirror superOfSuperOfGeneric = superOfGeneric.superclass;
-
-  TypeVariableMirror gFromGeneric = generic.typeVariables.single;
-  TypeVariableMirror sFromSuper = superOfGeneric.typeVariables.single;
-  TypeVariableMirror ssFromSuperSuper =
-      superOfSuperOfGeneric.typeVariables.single;
-
-  // Names of type variables are not preserved after type canonicalization
-  // and are therefore not compared to expected names.
-
-  typeArguments(generic, []);
-  typeArguments(superOfGeneric, [gFromGeneric]);
-  typeArguments(superOfSuperOfGeneric, [gFromGeneric]);
-
-  // Instantiations.
-  ClassMirror genericWithInt = reflect(new Generic<int>()).type;
-  ClassMirror superOfGenericWithInt = genericWithInt.superclass;
-  ClassMirror superOfSuperOfGenericWithInt = superOfGenericWithInt.superclass;
-
-  typeArguments(genericWithInt, [reflectClass(int)]);
-  typeArguments(superOfGenericWithInt, [reflectClass(int)]);
-  typeArguments(superOfSuperOfGenericWithInt, [reflectClass(int)]);
-}
diff --git a/tests/lib_2/mirrors/type_mirror_for_type_test.dart b/tests/lib_2/mirrors/type_mirror_for_type_test.dart
deleted file mode 100644
index 65e88996a71..00000000000
--- a/tests/lib_2/mirrors/type_mirror_for_type_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for the dart2js implementation of runtime types.
-
-library test.type_mirror_for_type;
-
-import 'package:expect/expect.dart';
-
-import 'dart:mirrors';
-
-class C<T> {}
-
-class X {
-  Type foo() {}
-}
-
-main() {
-  // Make sure that we need a type test against the runtime representation of
-  // [Type].
-  var a = (new DateTime.now().millisecondsSinceEpoch != 42)
-      ? new C<Type>()
-      : new C<int>();
-  print(a is C<Type>);
-
-  var typeMirror = reflectType(X) as ClassMirror;
-  var declarationMirror = typeMirror.declarations[#foo] as MethodMirror;
-  // Test that the runtime type implementation does not confuse the runtime type
-  // representation of [Type] with an actual value of type [Type] when analyzing
-  // the return type of [foo].
-  Expect.equals(reflectType(Type), declarationMirror.returnType);
-}
diff --git a/tests/lib_2/mirrors/type_variable_is_static_test.dart b/tests/lib_2/mirrors/type_variable_is_static_test.dart
deleted file mode 100644
index 3b093cdd966..00000000000
--- a/tests/lib_2/mirrors/type_variable_is_static_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.type_variable_owner;
-
-import "dart:mirrors";
-
-import "package:expect/expect.dart";
-
-class C<T> {}
-
-typedef bool Predicate<T>(T t);
-
-main() {
-  Expect.isFalse(reflectType(C).typeVariables.single.isStatic);
-  Expect.isFalse(reflectType(Predicate).typeVariables.single.isStatic);
-}
diff --git a/tests/lib_2/mirrors/type_variable_owner_test.dart b/tests/lib_2/mirrors/type_variable_owner_test.dart
deleted file mode 100644
index 8913789456c..00000000000
--- a/tests/lib_2/mirrors/type_variable_owner_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Owner of a type variable should be the declaration of the generic class or
-// typedef, not an instantiation.
-
-library test.type_variable_owner;
-
-import "dart:mirrors";
-
-import "package:expect/expect.dart";
-
-class A<T> {}
-
-class B<R> extends A<R> {}
-
-testTypeVariableOfClass() {
-  ClassMirror aDecl = reflectClass(A);
-  ClassMirror bDecl = reflectClass(B);
-  ClassMirror aOfInt = reflect(new A<int>()).type;
-  ClassMirror aOfR = bDecl.superclass;
-  ClassMirror bOfString = reflect(new B<String>()).type;
-  ClassMirror aOfString = bOfString.superclass;
-
-  Expect.equals(aDecl, aDecl.typeVariables[0].owner);
-  Expect.equals(aDecl, aOfInt.typeVariables[0].owner);
-  Expect.equals(aDecl, aOfR.typeVariables[0].owner);
-  Expect.equals(aDecl, aOfString.typeVariables[0].owner);
-
-  Expect.equals(bDecl, bDecl.typeVariables[0].owner);
-  Expect.equals(bDecl, bOfString.typeVariables[0].owner);
-}
-
-typedef bool Predicate<T>(T t);
-Predicate<List> somePredicateOfList;
-
-testTypeVariableOfTypedef() {
-  LibraryMirror thisLibrary =
-      currentMirrorSystem().findLibrary(#test.type_variable_owner);
-
-  TypedefMirror predicateOfDynamic = reflectType(Predicate) as TypedefMirror;
-  TypedefMirror predicateOfList =
-      (thisLibrary.declarations[#somePredicateOfList] as VariableMirror).type as TypedefMirror;
-  TypedefMirror predicateDecl = predicateOfList.originalDeclaration as TypedefMirror;
-
-  Expect.equals(predicateDecl, predicateOfDynamic.typeVariables[0].owner);
-  Expect.equals(predicateDecl, predicateOfList.typeVariables[0].owner);
-  Expect.equals(predicateDecl, predicateDecl.typeVariables[0].owner);
-}
-
-main() {
-  testTypeVariableOfClass();
-  testTypeVariableOfTypedef(); // //# 01: ok
-}
diff --git a/tests/lib_2/mirrors/typearguments_mirror_test.dart b/tests/lib_2/mirrors/typearguments_mirror_test.dart
deleted file mode 100644
index 07671874127..00000000000
--- a/tests/lib_2/mirrors/typearguments_mirror_test.dart
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib;
-
-import 'package:expect/expect.dart';
-import 'stringify.dart';
-import 'dart:mirrors';
-
-class Foo<T> {}
-
-class Bar<T, R> {}
-
-main() {
-  var cm = reflectClass(Foo);
-  var cm1 = reflect((new Foo<String>())).type;
-
-  Expect.notEquals(cm, cm1);
-  Expect.isFalse(cm1.isOriginalDeclaration);
-  Expect.isTrue(cm.isOriginalDeclaration);
-
-  Expect.equals(cm, cm1.originalDeclaration);
-
-  Expect.equals(cm, reflectClass(Foo));
-  Expect.equals(cm, reflectClass((new Foo().runtimeType)));
-  Expect.equals(cm1, reflect(new Foo<String>()).type);
-
-  expect('[]', cm.typeArguments);
-  expect('[Class(s(String) in s(dart.core), top-level)]', cm1.typeArguments);
-
-  cm = reflect(new Bar<List, Set>()).type;
-  cm1 = reflect(new Bar<List, Set<String>>()).type;
-
-  var cm2 = reflect(new Bar<List<String>, Set>()).type;
-  var cm3 = reflect(new Bar<List<String>, Set<String>>()).type;
-
-  expect(
-      '[Class(s(List) in s(dart.core), top-level),'
-      ' Class(s(Set) in s(dart.core), top-level)]',
-      cm.typeArguments);
-  expect(
-      '[Class(s(List) in s(dart.core), top-level),'
-      ' Class(s(Set) in s(dart.core), top-level)]',
-      cm1.typeArguments);
-  expect(
-      '[Class(s(List) in s(dart.core), top-level),'
-      ' Class(s(Set) in s(dart.core), top-level)]',
-      cm2.typeArguments);
-  expect(
-      '[Class(s(List) in s(dart.core), top-level),'
-      ' Class(s(Set) in s(dart.core), top-level)]',
-      cm3.typeArguments);
-
-  expect('[Class(s(String) in s(dart.core), top-level)]',
-      cm1.typeArguments[1].typeArguments);
-  expect('[Class(s(String) in s(dart.core), top-level)]',
-      cm2.typeArguments[0].typeArguments);
-  expect('[Class(s(String) in s(dart.core), top-level)]',
-      cm3.typeArguments[0].typeArguments);
-  expect('[Class(s(String) in s(dart.core), top-level)]',
-      cm3.typeArguments[1].typeArguments);
-
-  var cm4 = reflect(new Bar<Bar<List, Set>, String>()).type;
-
-  expect(
-      '[Class(s(Bar) in s(lib), top-level),'
-      ' Class(s(String) in s(dart.core), top-level)]',
-      cm4.typeArguments);
-  expect(
-      '[Class(s(List) in s(dart.core), top-level), '
-      'Class(s(Set) in s(dart.core), top-level)]',
-      cm4.typeArguments[0].typeArguments);
-}
diff --git a/tests/lib_2/mirrors/typedef_deferred_library_test.dart b/tests/lib_2/mirrors/typedef_deferred_library_test.dart
deleted file mode 100644
index 12a33a565b2..00000000000
--- a/tests/lib_2/mirrors/typedef_deferred_library_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library foo;
-
-import 'dart:mirrors';
-import 'typedef_library.dart' deferred as def;
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-main() {
-  asyncStart();
-  def.loadLibrary().then((_) {
-    var barLibrary = currentMirrorSystem().findLibrary(new Symbol("bar"));
-    var gTypedef = barLibrary.declarations[new Symbol("G")];
-    Expect.equals("G", MirrorSystem.getName(gTypedef.simpleName));
-    asyncEnd();
-  });
-}
diff --git a/tests/lib_2/mirrors/typedef_in_signature_test.dart b/tests/lib_2/mirrors/typedef_in_signature_test.dart
deleted file mode 100644
index 27dbd66bf7a..00000000000
--- a/tests/lib_2/mirrors/typedef_in_signature_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.typedef_in_signature_test;
-
-import 'dart:mirrors';
-
-import "package:expect/expect.dart";
-
-typedef int foo();
-typedef String foo2();
-typedef foo foo3(foo2 x);
-
-foo2 bar(foo x) => throw "does-not-return"; //
-
-foo3 gee(int x, foo3 tt) => throw "does-not-return"; //
-
-main() {
-  var lm = currentMirrorSystem().findLibrary(#test.typedef_in_signature_test);
-  var mm = lm.declarations[#bar] as MethodMirror;
-  Expect.equals(reflectType(foo2), mm.returnType);
-  Expect.equals(reflectType(foo), mm.parameters[0].type);
-  mm = lm.declarations[#gee] as MethodMirror;
-  Expect.equals(reflectType(int), mm.parameters[0].type);
-  Expect.equals(reflectType(foo3), mm.returnType);
-  var ftm = (mm.returnType as TypedefMirror).referent;
-  Expect.equals(reflectType(foo), ftm.returnType);
-  Expect.equals(reflectType(foo2), ftm.parameters[0].type);
-}
diff --git a/tests/lib_2/mirrors/typedef_library.dart b/tests/lib_2/mirrors/typedef_library.dart
deleted file mode 100644
index 640426a0520..00000000000
--- a/tests/lib_2/mirrors/typedef_library.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library bar;
-
-typedef G();
diff --git a/tests/lib_2/mirrors/typedef_library_test.dart b/tests/lib_2/mirrors/typedef_library_test.dart
deleted file mode 100644
index 82e193051c2..00000000000
--- a/tests/lib_2/mirrors/typedef_library_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library foo;
-
-import 'dart:mirrors';
-import 'typedef_library.dart';
-
-import 'package:expect/expect.dart';
-
-main() {
-  var barLibrary = currentMirrorSystem().findLibrary(new Symbol("bar"));
-  var gTypedef = barLibrary.declarations[new Symbol("G")];
-  Expect.equals("G", MirrorSystem.getName(gTypedef.simpleName));
-}
diff --git a/tests/lib_2/mirrors/typedef_metadata_test.dart b/tests/lib_2/mirrors/typedef_metadata_test.dart
deleted file mode 100644
index ebd1bfce5c8..00000000000
--- a/tests/lib_2/mirrors/typedef_metadata_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@string
-@symbol
-library test.typedef_metadata_test;
-
-import 'dart:mirrors';
-
-import 'metadata_test.dart';
-
-class S {}
-
-class M {}
-
-@symbol
-class MA = S with M;
-
-@string
-typedef bool Predicate(Object o);
-
-main() {
-  checkMetadata(reflectType(MA), [symbol]);
-  checkMetadata(reflectType(Predicate), [string]);
-}
diff --git a/tests/lib_2/mirrors/typedef_reflected_type_test.dart b/tests/lib_2/mirrors/typedef_reflected_type_test.dart
deleted file mode 100644
index 546088cd804..00000000000
--- a/tests/lib_2/mirrors/typedef_reflected_type_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test;
-
-import 'package:expect/expect.dart';
-
-import 'dart:mirrors';
-
-typedef int Foo<T>(String x);
-typedef int Bar();
-
-class C {
-  Bar fun(Foo<int> x) => null;
-}
-
-main() {
-  var m = reflectClass(C).declarations[#fun] as MethodMirror;
-
-  Expect.equals(Bar, m.returnType.reflectedType);
-  Expect.equals("Foo<int>", m.parameters[0].type.reflectedType.toString()); //  //# 01: ok
-  Expect.equals(int, m.parameters[0].type.typeArguments[0].reflectedType); //   //# 01: continued
-  Expect.isFalse(m.parameters[0].type.isOriginalDeclaration); //                //# 01: continued
-
-  var lib = currentMirrorSystem().findLibrary(#test);
-  Expect.isTrue((lib.declarations[#Foo] as TypeMirror).isOriginalDeclaration);
-}
diff --git a/tests/lib_2/mirrors/typevariable_mirror_metadata_test.dart b/tests/lib_2/mirrors/typevariable_mirror_metadata_test.dart
deleted file mode 100644
index c05f397199a..00000000000
--- a/tests/lib_2/mirrors/typevariable_mirror_metadata_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.typevariable_metadata_test;
-
-import "dart:mirrors";
-
-import "metadata_test.dart";
-
-const m1 = 'm1';
-const m2 = #m2;
-const m3 = 3;
-
-class A<S, @m1 @m2 T> {}
-
-class B<@m3 T> {}
-
-typedef bool Predicate<@m1 @m2 G>(G a);
-
-main() {
-  ClassMirror cm;
-  cm = reflectClass(A);
-  checkMetadata(cm.typeVariables[0], []);
-  checkMetadata(cm.typeVariables[1], [m1, m2]);
-
-  cm = reflectClass(B);
-  checkMetadata(cm.typeVariables[0], [m3]);
-
-  TypedefMirror tm = reflectType(Predicate);
-  checkMetadata(tm.typeVariables[0], [m1, m2]);
-  FunctionTypeMirror ftm = tm.referent;
-  checkMetadata(ftm, []);
-}
diff --git a/tests/lib_2/mirrors/unmangled_type_test.dart b/tests/lib_2/mirrors/unmangled_type_test.dart
deleted file mode 100644
index 1e0874f5118..00000000000
--- a/tests/lib_2/mirrors/unmangled_type_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library lib;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class Foo {}
-
-main() {
-  Expect.stringEquals('Foo', '${new Foo().runtimeType}');
-  Expect.stringEquals('foo', MirrorSystem.getName(new Symbol('foo')));
-}
diff --git a/tests/lib_2/mirrors/unnamed_library_test.dart b/tests/lib_2/mirrors/unnamed_library_test.dart
deleted file mode 100644
index f1305d0f3e8..00000000000
--- a/tests/lib_2/mirrors/unnamed_library_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// No library declaration.
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class Class {}
-
-main() {
-  ClassMirror cm = reflectClass(Class);
-  LibraryMirror lm = cm.owner as LibraryMirror;
-
-  Expect.equals('Class', MirrorSystem.getName(cm.simpleName));
-  Expect.equals('.Class', MirrorSystem.getName(cm.qualifiedName));
-  Expect.equals('', MirrorSystem.getName(lm.simpleName));
-  Expect.equals('', MirrorSystem.getName(lm.qualifiedName));
-}
diff --git a/tests/lib_2/mirrors/unnamed_mixin_application_test.dart b/tests/lib_2/mirrors/unnamed_mixin_application_test.dart
deleted file mode 100644
index a5795f13d8a..00000000000
--- a/tests/lib_2/mirrors/unnamed_mixin_application_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Test that the forwarding constructors of unnamed mixin applications are
-/// included for reflection.
-
-library lib;
-
-import 'dart:mirrors';
-
-class S {
-  S();
-  S.anUnusedName();
-}
-
-class M {}
-
-class C extends S with M {
-  C();
-}
-
-main() {
-  // Use 'C#', 'S+M#' and 'S#' but not 'S#anUnusedName' nor 'S+M#anUnusedName'.
-  new C();
-  // Disable tree shaking making 'S+M#anUnusedName' live.
-  reflectClass(C);
-}
diff --git a/tests/lib_2/mirrors/variable_is_const_test.dart b/tests/lib_2/mirrors/variable_is_const_test.dart
deleted file mode 100644
index a2262363fe8..00000000000
--- a/tests/lib_2/mirrors/variable_is_const_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library test.variable_is_const;
-
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class Class {
-  const //# 01: compile-time error
-      int instanceWouldBeConst = 1;
-  var instanceNonConst = 2;
-
-  static const staticConst = 3;
-  static var staticNonConst = 4;
-}
-
-const topLevelConst = 5;
-var topLevelNonConst = 6;
-
-main() {
-  bool isConst(m, Symbol s) => (m.declarations[s] as VariableMirror).isConst;
-
-  ClassMirror cm = reflectClass(Class);
-  Expect.isFalse(isConst(cm, #instanceWouldBeConst));
-  Expect.isFalse(isConst(cm, #instanceNonConst));
-  Expect.isTrue(isConst(cm, #staticConst));
-  Expect.isFalse(isConst(cm, #staticNonConst));
-
-  LibraryMirror lm = cm.owner as LibraryMirror;
-  Expect.isTrue(isConst(lm, #topLevelConst));
-  Expect.isFalse(isConst(lm, #topLevelNonConst));
-}
diff --git a/tests/lib_2/typed_data/byte_data_test.dart b/tests/lib_2/typed_data/byte_data_test.dart
deleted file mode 100644
index 9a0adf868e7..00000000000
--- a/tests/lib_2/typed_data/byte_data_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:typed_data';
-import "package:expect/expect.dart";
-
-main() {
-  testRegress10898();
-}
-
-testRegress10898() {
-  ByteData data = new ByteData(16);
-  Expect.equals(16, data.lengthInBytes);
-  for (int i = 0; i < data.lengthInBytes; i++) {
-    Expect.equals(0, data.getInt8(i));
-    data.setInt8(i, 42 + i);
-    Expect.equals(42 + i, data.getInt8(i));
-  }
-
-  ByteData backing = new ByteData(16);
-  ByteData view = new ByteData.view(backing.buffer);
-  for (int i = 0; i < view.lengthInBytes; i++) {
-    Expect.equals(0, view.getInt8(i));
-    view.setInt8(i, 87 + i);
-    Expect.equals(87 + i, view.getInt8(i));
-  }
-
-  view = new ByteData.view(backing.buffer, 4);
-  Expect.equals(12, view.lengthInBytes);
-  for (int i = 0; i < view.lengthInBytes; i++) {
-    Expect.equals(87 + i + 4, view.getInt8(i));
-  }
-
-  view = new ByteData.view(backing.buffer, 8, 4);
-  Expect.equals(4, view.lengthInBytes);
-  for (int i = 0; i < view.lengthInBytes; i++) {
-    Expect.equals(87 + i + 8, view.getInt8(i));
-  }
-}
diff --git a/tests/lib_2/typed_data/bytes_builder_test.dart b/tests/lib_2/typed_data/bytes_builder_test.dart
deleted file mode 100644
index 341ab8da387..00000000000
--- a/tests/lib_2/typed_data/bytes_builder_test.dart
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "dart:typed_data";
-import "package:expect/expect.dart";
-
-main() {
-  for (var copying in [true, false]) {
-    var b;
-    testLength(n) {
-      Expect.equals(n, b.length);
-      if (n == 0) {
-        Expect.isTrue(b.isEmpty, "isEmpty: #${b.length}");
-        Expect.isFalse(b.isNotEmpty, "isNotEmpty: #${b.length}");
-      } else {
-        Expect.isTrue(b.isNotEmpty, "isNotEmpty: #${b.length}");
-        Expect.isFalse(b.isEmpty, "isEmpty: #${b.length}");
-      }
-    }
-
-    b = new BytesBuilder(copy: copying);
-    testLength(0);
-
-    b.addByte(0);
-    testLength(1);
-
-    b.add([1, 2, 3]);
-    testLength(4);
-
-    b.add(<int>[4, 5, 6]);
-    testLength(7);
-
-    b.add(new Uint8List.fromList([7, 8, 9]));
-    testLength(10);
-
-    b.add(new Uint16List.fromList([10, 11, 12]));
-    testLength(13);
-
-    var bytes = b.toBytes();
-    Expect.isTrue(bytes is Uint8List);
-    Expect.listEquals([0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12], bytes);
-    testLength(13);
-
-    b.add("\x0d\x0e\x0f".codeUnits);
-    testLength(16);
-
-    bytes = b.takeBytes();
-    testLength(0);
-    Expect.isTrue(bytes is Uint8List);
-    Expect.listEquals(
-        [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15], bytes);
-
-    b.addByte(0);
-    testLength(1);
-
-    b.clear();
-    testLength(0);
-
-    b.addByte(0);
-    testLength(1);
-  }
-}
diff --git a/tests/lib_2/typed_data/constructor_checks_test.dart b/tests/lib_2/typed_data/constructor_checks_test.dart
deleted file mode 100644
index b20811782be..00000000000
--- a/tests/lib_2/typed_data/constructor_checks_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-checkLengthConstructors() {
-  check(creator) {
-    Expect.throws(() => creator(null));
-    Expect.throws(() => creator(8.5));
-    Expect.throws(() => creator('10'));
-    var a = creator(10);
-    Expect.equals(10, a.length);
-  }
-
-  check((a) => new Float32List(a));
-  check((a) => new Float64List(a));
-  check((a) => new Int8List(a));
-  check((a) => new Int8List(a));
-  check((a) => new Int16List(a));
-  check((a) => new Int32List(a));
-  check((a) => new Uint8List(a));
-  check((a) => new Uint16List(a));
-  check((a) => new Uint32List(a));
-}
-
-checkViewConstructors() {
-  var buffer = new Int8List(256).buffer;
-
-  check1(creator) {
-    Expect.throws(() => creator(10));
-    Expect.throws(() => creator(null));
-    var a = creator(buffer);
-    Expect.equals(buffer, a.buffer);
-  }
-
-  check2(creator) {
-    Expect.throws(() => creator(10, 0));
-    Expect.throws(() => creator(null, 0));
-    Expect.throws(() => creator(buffer, null));
-    Expect.throws(() => creator(buffer, '8'));
-    var a = creator(buffer, 8);
-    Expect.equals(buffer, a.buffer);
-  }
-
-  check1((a) => new Float32List.view(a));
-  check1((a) => new Float64List.view(a));
-  check1((a) => new Int8List.view(a));
-  check1((a) => new Int8List.view(a));
-  check1((a) => new Int16List.view(a));
-  check1((a) => new Int32List.view(a));
-  check1((a) => new Uint8List.view(a));
-  check1((a) => new Uint16List.view(a));
-  check1((a) => new Uint32List.view(a));
-
-  check2((a, b) => new Float32List.view(a, b));
-  check2((a, b) => new Float64List.view(a, b));
-  check2((a, b) => new Int8List.view(a, b));
-  check2((a, b) => new Int8List.view(a, b));
-  check2((a, b) => new Int16List.view(a, b));
-  check2((a, b) => new Int32List.view(a, b));
-  check2((a, b) => new Uint8List.view(a, b));
-  check2((a, b) => new Uint16List.view(a, b));
-  check2((a, b) => new Uint32List.view(a, b));
-}
-
-main() {
-  checkLengthConstructors();
-  checkViewConstructors();
-}
diff --git a/tests/lib_2/typed_data/endianness_test.dart b/tests/lib_2/typed_data/endianness_test.dart
deleted file mode 100644
index 7704e3cc10e..00000000000
--- a/tests/lib_2/typed_data/endianness_test.dart
+++ /dev/null
@@ -1,86 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:typed_data';
-import "package:expect/expect.dart";
-
-main() {
-  swapTest();
-  swapTestVar(Endian.little, Endian.big);
-  swapTestVar(Endian.big, Endian.little);
-}
-
-swapTest() {
-  ByteData data = new ByteData(16);
-  Expect.equals(16, data.lengthInBytes);
-  for (int i = 0; i < 4; i++) {
-    data.setInt32(i * 4, i);
-  }
-
-  for (int i = 0; i < data.lengthInBytes; i += 4) {
-    var e = data.getInt32(i, Endian.big);
-    data.setInt32(i, e, Endian.little);
-  }
-
-  Expect.equals(0x02000000, data.getInt32(8));
-
-  for (int i = 0; i < data.lengthInBytes; i += 2) {
-    var e = data.getInt16(i, Endian.big);
-    data.setInt16(i, e, Endian.little);
-  }
-
-  Expect.equals(0x00020000, data.getInt32(8));
-
-  for (int i = 0; i < data.lengthInBytes; i += 4) {
-    var e = data.getUint32(i, Endian.little);
-    data.setUint32(i, e, Endian.big);
-  }
-
-  Expect.equals(0x00000200, data.getInt32(8));
-
-  for (int i = 0; i < data.lengthInBytes; i += 2) {
-    var e = data.getUint16(i, Endian.little);
-    data.setUint16(i, e, Endian.big);
-  }
-
-  Expect.equals(0x00000002, data.getInt32(8));
-}
-
-swapTestVar(read, write) {
-  ByteData data = new ByteData(16);
-  Expect.equals(16, data.lengthInBytes);
-  for (int i = 0; i < 4; i++) {
-    data.setInt32(i * 4, i);
-  }
-
-  for (int i = 0; i < data.lengthInBytes; i += 4) {
-    var e = data.getInt32(i, read);
-    data.setInt32(i, e, write);
-  }
-
-  Expect.equals(0x02000000, data.getInt32(8));
-
-  for (int i = 0; i < data.lengthInBytes; i += 2) {
-    var e = data.getInt16(i, read);
-    data.setInt16(i, e, write);
-  }
-
-  Expect.equals(0x00020000, data.getInt32(8));
-
-  for (int i = 0; i < data.lengthInBytes; i += 4) {
-    var e = data.getUint32(i, read);
-    data.setUint32(i, e, write);
-  }
-
-  Expect.equals(0x00000200, data.getInt32(8));
-
-  for (int i = 0; i < data.lengthInBytes; i += 2) {
-    var e = data.getUint16(i, read);
-    data.setUint16(i, e, write);
-  }
-
-  Expect.equals(0x00000002, data.getInt32(8));
-}
diff --git a/tests/lib_2/typed_data/float32x4_clamp_test.dart b/tests/lib_2/typed_data/float32x4_clamp_test.dart
deleted file mode 100644
index ba05829195b..00000000000
--- a/tests/lib_2/typed_data/float32x4_clamp_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-// Library tag to be able to run in html test framework.
-library float32x4_clamp_test;
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-void testClampLowerGreaterThanUpper() {
-  Float32x4 l = new Float32x4(1.0, 1.0, 1.0, 1.0);
-  Float32x4 u = new Float32x4(-1.0, -1.0, -1.0, -1.0);
-  Float32x4 z = new Float32x4.zero();
-  Float32x4 a = z.clamp(l, u);
-  Expect.equals(a.x, 1.0);
-  Expect.equals(a.y, 1.0);
-  Expect.equals(a.z, 1.0);
-  Expect.equals(a.w, 1.0);
-}
-
-void testClamp() {
-  Float32x4 l = new Float32x4(-1.0, -1.0, -1.0, -1.0);
-  Float32x4 u = new Float32x4(1.0, 1.0, 1.0, 1.0);
-  Float32x4 z = new Float32x4.zero();
-  Float32x4 a = z.clamp(l, u);
-  Expect.equals(a.x, 0.0);
-  Expect.equals(a.y, 0.0);
-  Expect.equals(a.z, 0.0);
-  Expect.equals(a.w, 0.0);
-}
-
-Float32x4 negativeZeroClamp() {
-  final negZero = -Float32x4.zero();
-  return negZero.clamp(negZero, Float32x4.zero());
-}
-
-Float32x4 zeroClamp() {
-  final negOne = -Float32x4(1.0, 1.0, 1.0, 1.0);
-  return Float32x4.zero().clamp(negOne, -Float32x4.zero());
-}
-
-// Regression test for https://github.com/dart-lang/sdk/issues/40426.
-void testNegativeZeroClamp(Float32x4 unopt) {
-  final res = negativeZeroClamp();
-  Expect.equals(res.x.compareTo(unopt.x), 0);
-  Expect.equals(res.y.compareTo(unopt.y), 0);
-  Expect.equals(res.z.compareTo(unopt.z), 0);
-  Expect.equals(res.w.compareTo(unopt.w), 0);
-}
-
-// Regression test for https://github.com/dart-lang/sdk/issues/40426.
-void testZeroClamp(Float32x4 unopt) {
-  final res = zeroClamp();
-  Expect.equals(res.x.compareTo(unopt.x), 0);
-  Expect.equals(res.y.compareTo(unopt.y), 0);
-  Expect.equals(res.z.compareTo(unopt.z), 0);
-  Expect.equals(res.w.compareTo(unopt.w), 0);
-}
-
-main() {
-  final unoptNegZeroClamp = negativeZeroClamp();
-  final unoptZeroClamp = zeroClamp();
-  for (int i = 0; i < 2000; i++) {
-    testClampLowerGreaterThanUpper();
-    testClamp();
-    testNegativeZeroClamp(unoptNegZeroClamp);
-    testZeroClamp(unoptZeroClamp);
-  }
-}
diff --git a/tests/lib_2/typed_data/float32x4_cross_test.dart b/tests/lib_2/typed_data/float32x4_cross_test.dart
deleted file mode 100644
index 3cfaccabd9b..00000000000
--- a/tests/lib_2/typed_data/float32x4_cross_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-// Library tag to be able to run in html test framework.
-library float32x4_cross_test;
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-Float32x4 cross(Float32x4 a, Float32x4 b) {
-  var t0 = a.shuffle(Float32x4.yzxw);
-  var t1 = b.shuffle(Float32x4.zxyw);
-  var l = t0 * t1;
-  t0 = a.shuffle(Float32x4.zxyw);
-  t1 = b.shuffle(Float32x4.yzxw);
-  var r = t0 * t1;
-  return l - r;
-}
-
-void testCross(Float32x4 a, Float32x4 b, Float32x4 r) {
-  var x = cross(a, b);
-  Expect.equals(r.x, x.x);
-  Expect.equals(r.y, x.y);
-  Expect.equals(r.z, x.z);
-  Expect.equals(r.w, x.w);
-}
-
-main() {
-  var x = new Float32x4(1.0, 0.0, 0.0, 0.0);
-  var y = new Float32x4(0.0, 1.0, 0.0, 0.0);
-  var z = new Float32x4(0.0, 0.0, 1.0, 0.0);
-  var zero = new Float32x4.zero();
-
-  for (int i = 0; i < 20; i++) {
-    testCross(x, y, z);
-    testCross(z, x, y);
-    testCross(y, z, x);
-    testCross(z, y, -x);
-    testCross(x, z, -y);
-    testCross(y, x, -z);
-    testCross(x, x, zero);
-    testCross(y, y, zero);
-    testCross(z, z, zero);
-    testCross(x, y, cross(-y, x));
-    testCross(x, y + z, cross(x, y) + cross(x, z));
-  }
-}
diff --git a/tests/lib_2/typed_data/float32x4_list_test.dart b/tests/lib_2/typed_data/float32x4_list_test.dart
deleted file mode 100644
index 5b36caae34b..00000000000
--- a/tests/lib_2/typed_data/float32x4_list_test.dart
+++ /dev/null
@@ -1,256 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--max_deoptimization_counter_threshold=1000 --optimization-counter-threshold=10 --no-background_compilation
-
-// @dart = 2.9
-
-// Library tag to be able to run in html test framework.
-library float32x4_list_test;
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-testLoadStore(array) {
-  Expect.equals(8, array.length);
-  Expect.isTrue(array is List<Float32x4>);
-  array[0] = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  Expect.equals(1.0, array[0].x);
-  Expect.equals(2.0, array[0].y);
-  Expect.equals(3.0, array[0].z);
-  Expect.equals(4.0, array[0].w);
-  array[1] = array[0];
-  array[0] = array[0].withX(9.0);
-  Expect.equals(9.0, array[0].x);
-  Expect.equals(2.0, array[0].y);
-  Expect.equals(3.0, array[0].z);
-  Expect.equals(4.0, array[0].w);
-  Expect.equals(1.0, array[1].x);
-  Expect.equals(2.0, array[1].y);
-  Expect.equals(3.0, array[1].z);
-  Expect.equals(4.0, array[1].w);
-}
-
-testLoadStoreDeopt(array, index, value) {
-  array[index] = value;
-  Expect.equals(value.x, array[index].x);
-  Expect.equals(value.y, array[index].y);
-  Expect.equals(value.z, array[index].z);
-  Expect.equals(value.w, array[index].w);
-}
-
-testLoadStoreDeoptDriver() {
-  Float32x4List list = new Float32x4List(4);
-  Float32x4 value = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  for (int i = 0; i < 20; i++) {
-    testLoadStoreDeopt(list, 0, value);
-  }
-  try {
-    // Invalid index.
-    testLoadStoreDeopt(list, 5, value);
-  } catch (_) {}
-  for (int i = 0; i < 20; i++) {
-    testLoadStoreDeopt(list, 0, value);
-  }
-  try {
-    // null list.
-    testLoadStoreDeopt(null, 0, value);
-  } catch (_) {}
-  for (int i = 0; i < 20; i++) {
-    testLoadStoreDeopt(list, 0, value);
-  }
-  try {
-    // null value.
-    testLoadStoreDeopt(list, 0, null);
-  } catch (_) {}
-  for (int i = 0; i < 20; i++) {
-    testLoadStoreDeopt(list, 0, value);
-  }
-  try {
-    // non-smi index.
-    testLoadStoreDeopt(list, 3.14159, value);
-  } catch (_) {}
-  for (int i = 0; i < 20; i++) {
-    testLoadStoreDeopt(list, 0, value);
-  }
-  try {
-    // non-Float32x4 value.
-    testLoadStoreDeopt(list, 0, 4.toDouble());
-  } catch (_) {}
-  for (int i = 0; i < 20; i++) {
-    testLoadStoreDeopt(list, 0, value);
-  }
-  try {
-    // non-Float32x4List list.
-    testLoadStoreDeopt([new Float32x4(2.0, 3.0, 4.0, 5.0)], 0, value);
-  } catch (_) {}
-  for (int i = 0; i < 20; i++) {
-    testLoadStoreDeopt(list, 0, value);
-  }
-}
-
-testListZero() {
-  Float32x4List list = new Float32x4List(1);
-  Expect.equals(0.0, list[0].x);
-  Expect.equals(0.0, list[0].y);
-  Expect.equals(0.0, list[0].z);
-  Expect.equals(0.0, list[0].w);
-}
-
-testView(array) {
-  Expect.equals(8, array.length);
-  Expect.isTrue(array is List<Float32x4>);
-  Expect.equals(0.0, array[0].x);
-  Expect.equals(1.0, array[0].y);
-  Expect.equals(2.0, array[0].z);
-  Expect.equals(3.0, array[0].w);
-  Expect.equals(4.0, array[1].x);
-  Expect.equals(5.0, array[1].y);
-  Expect.equals(6.0, array[1].z);
-  Expect.equals(7.0, array[1].w);
-}
-
-testSublist(array) {
-  Expect.equals(8, array.length);
-  Expect.isTrue(array is Float32x4List);
-  var a = array.sublist(0, 1);
-  Expect.equals(1, a.length);
-  Expect.equals(0.0, a[0].x);
-  Expect.equals(1.0, a[0].y);
-  Expect.equals(2.0, a[0].z);
-  Expect.equals(3.0, a[0].w);
-  a = array.sublist(1, 2);
-  Expect.equals(4.0, a[0].x);
-  Expect.equals(5.0, a[0].y);
-  Expect.equals(6.0, a[0].z);
-  Expect.equals(7.0, a[0].w);
-  a = array.sublist(0);
-  Expect.equals(a.length, array.length);
-  for (int i = 0; i < array.length; i++) {
-    Expect.equals(array[i].x, a[i].x);
-    Expect.equals(array[i].y, a[i].y);
-    Expect.equals(array[i].z, a[i].z);
-    Expect.equals(array[i].w, a[i].w);
-  }
-}
-
-void testSpecialValues(array) {
-  /// Same as Expect.identical, but also works with NaNs and -0.0 for dart2js.
-  void checkEquals(expected, actual) {
-    if (expected.isNaN) {
-      Expect.isTrue(actual.isNaN);
-    } else if (expected == 0.0 && expected.isNegative) {
-      Expect.isTrue(actual == 0.0 && actual.isNegative);
-    } else {
-      Expect.equals(expected, actual);
-    }
-  }
-
-  var pairs = [
-    [0.0, 0.0],
-    [5e-324, 0.0],
-    [2.225073858507201e-308, 0.0],
-    [2.2250738585072014e-308, 0.0],
-    [0.9999999999999999, 1.0],
-    [1.0, 1.0],
-    [1.0000000000000002, 1.0],
-    [4294967295.0, 4294967296.0],
-    [4294967296.0, 4294967296.0],
-    [4503599627370495.5, 4503599627370496.0],
-    [9007199254740992.0, 9007199254740992.0],
-    [1.7976931348623157e+308, double.infinity],
-    [0.49999999999999994, 0.5],
-    [4503599627370497.0, 4503599627370496.0],
-    [9007199254740991.0, 9007199254740992.0],
-    [double.infinity, double.infinity],
-    [double.nan, double.nan],
-  ];
-
-  var conserved = [
-    1.401298464324817e-45,
-    1.1754942106924411e-38,
-    1.1754943508222875e-38,
-    0.9999999403953552,
-    1.0000001192092896,
-    8388607.5,
-    8388608.0,
-    3.4028234663852886e+38,
-    8388609.0,
-    16777215.0,
-  ];
-
-  var minusPairs = pairs.map((pair) {
-    return [-pair[0], -pair[1]];
-  });
-  var conservedPairs = conserved.map((value) => [value, value]);
-
-  var allTests = [pairs, minusPairs, conservedPairs].expand((x) => x);
-
-  for (var pair in allTests) {
-    var input = pair[0];
-    var expected = pair[1];
-    var f;
-    f = new Float32x4(input, 2.0, 3.0, 4.0);
-    array[0] = f;
-    f = array[0];
-    checkEquals(expected, f.x);
-    Expect.equals(2.0, f.y);
-    Expect.equals(3.0, f.z);
-    Expect.equals(4.0, f.w);
-
-    f = new Float32x4(1.0, input, 3.0, 4.0);
-    array[1] = f;
-    f = array[1];
-    Expect.equals(1.0, f.x);
-    checkEquals(expected, f.y);
-    Expect.equals(3.0, f.z);
-    Expect.equals(4.0, f.w);
-
-    f = new Float32x4(1.0, 2.0, input, 4.0);
-    array[2] = f;
-    f = array[2];
-    Expect.equals(1.0, f.x);
-    Expect.equals(2.0, f.y);
-    checkEquals(expected, f.z);
-    Expect.equals(4.0, f.w);
-
-    f = new Float32x4(1.0, 2.0, 3.0, input);
-    array[3] = f;
-    f = array[3];
-    Expect.equals(1.0, f.x);
-    Expect.equals(2.0, f.y);
-    Expect.equals(3.0, f.z);
-    checkEquals(expected, f.w);
-  }
-}
-
-main() {
-  var list;
-
-  list = new Float32x4List(8);
-  for (int i = 0; i < 20; i++) {
-    testLoadStore(list);
-  }
-
-  Float32List floatList = new Float32List(32);
-  for (int i = 0; i < floatList.length; i++) {
-    floatList[i] = i.toDouble();
-  }
-  list = new Float32x4List.view(floatList.buffer);
-  for (int i = 0; i < 20; i++) {
-    testView(list);
-  }
-  for (int i = 0; i < 20; i++) {
-    testSublist(list);
-  }
-  for (int i = 0; i < 20; i++) {
-    testLoadStore(list);
-  }
-  for (int i = 0; i < 20; i++) {
-    testListZero();
-  }
-  for (int i = 0; i < 20; i++) {
-    testSpecialValues(list);
-  }
-  testLoadStoreDeoptDriver();
-}
diff --git a/tests/lib_2/typed_data/float32x4_shuffle_test.dart b/tests/lib_2/typed_data/float32x4_shuffle_test.dart
deleted file mode 100644
index 402836f88b1..00000000000
--- a/tests/lib_2/typed_data/float32x4_shuffle_test.dart
+++ /dev/null
@@ -1,1438 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-// Library tag to be able to run in html test framework.
-library float32x4_shuffle_test;
-
-import 'dart:typed_data';
-import "package:expect/expect.dart";
-
-void testShuffle00() {
-  var m = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var c;
-  c = m.shuffle(Float32x4.xxxx);
-  Expect.equals(1.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.xxxy);
-  Expect.equals(1.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.xxxz);
-  Expect.equals(1.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.xxxw);
-  Expect.equals(1.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.xxyx);
-  Expect.equals(1.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.xxyy);
-  Expect.equals(1.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.xxyz);
-  Expect.equals(1.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.xxyw);
-  Expect.equals(1.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.xxzx);
-  Expect.equals(1.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.xxzy);
-  Expect.equals(1.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.xxzz);
-  Expect.equals(1.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.xxzw);
-  Expect.equals(1.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.xxwx);
-  Expect.equals(1.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.xxwy);
-  Expect.equals(1.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.xxwz);
-  Expect.equals(1.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.xxww);
-  Expect.equals(1.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(4.0, c.w);
-}
-
-void testShuffle01() {
-  var m = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var c;
-  c = m.shuffle(Float32x4.xyxx);
-  Expect.equals(1.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.xyxy);
-  Expect.equals(1.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.xyxz);
-  Expect.equals(1.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.xyxw);
-  Expect.equals(1.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.xyyx);
-  Expect.equals(1.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.xyyy);
-  Expect.equals(1.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.xyyz);
-  Expect.equals(1.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.xyyw);
-  Expect.equals(1.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.xyzx);
-  Expect.equals(1.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.xyzy);
-  Expect.equals(1.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.xyzz);
-  Expect.equals(1.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.xyzw);
-  Expect.equals(1.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.xywx);
-  Expect.equals(1.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.xywy);
-  Expect.equals(1.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.xywz);
-  Expect.equals(1.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.xyww);
-  Expect.equals(1.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(4.0, c.w);
-}
-
-void testShuffle02() {
-  var m = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var c;
-  c = m.shuffle(Float32x4.xzxx);
-  Expect.equals(1.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.xzxy);
-  Expect.equals(1.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.xzxz);
-  Expect.equals(1.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.xzxw);
-  Expect.equals(1.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.xzyx);
-  Expect.equals(1.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.xzyy);
-  Expect.equals(1.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.xzyz);
-  Expect.equals(1.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.xzyw);
-  Expect.equals(1.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.xzzx);
-  Expect.equals(1.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.xzzy);
-  Expect.equals(1.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.xzzz);
-  Expect.equals(1.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.xzzw);
-  Expect.equals(1.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.xzwx);
-  Expect.equals(1.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.xzwy);
-  Expect.equals(1.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.xzwz);
-  Expect.equals(1.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.xzww);
-  Expect.equals(1.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(4.0, c.w);
-}
-
-void testShuffle03() {
-  var m = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var c;
-  c = m.shuffle(Float32x4.xwxx);
-  Expect.equals(1.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.xwxy);
-  Expect.equals(1.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.xwxz);
-  Expect.equals(1.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.xwxw);
-  Expect.equals(1.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.xwyx);
-  Expect.equals(1.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.xwyy);
-  Expect.equals(1.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.xwyz);
-  Expect.equals(1.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.xwyw);
-  Expect.equals(1.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.xwzx);
-  Expect.equals(1.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.xwzy);
-  Expect.equals(1.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.xwzz);
-  Expect.equals(1.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.xwzw);
-  Expect.equals(1.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.xwwx);
-  Expect.equals(1.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.xwwy);
-  Expect.equals(1.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.xwwz);
-  Expect.equals(1.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.xwww);
-  Expect.equals(1.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(4.0, c.w);
-}
-
-void testShuffle10() {
-  var m = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var c;
-  c = m.shuffle(Float32x4.yxxx);
-  Expect.equals(2.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.yxxy);
-  Expect.equals(2.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.yxxz);
-  Expect.equals(2.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.yxxw);
-  Expect.equals(2.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.yxyx);
-  Expect.equals(2.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.yxyy);
-  Expect.equals(2.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.yxyz);
-  Expect.equals(2.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.yxyw);
-  Expect.equals(2.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.yxzx);
-  Expect.equals(2.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.yxzy);
-  Expect.equals(2.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.yxzz);
-  Expect.equals(2.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.yxzw);
-  Expect.equals(2.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.yxwx);
-  Expect.equals(2.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.yxwy);
-  Expect.equals(2.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.yxwz);
-  Expect.equals(2.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.yxww);
-  Expect.equals(2.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(4.0, c.w);
-}
-
-void testShuffle11() {
-  var m = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var c;
-  c = m.shuffle(Float32x4.yyxx);
-  Expect.equals(2.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.yyxy);
-  Expect.equals(2.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.yyxz);
-  Expect.equals(2.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.yyxw);
-  Expect.equals(2.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.yyyx);
-  Expect.equals(2.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.yyyy);
-  Expect.equals(2.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.yyyz);
-  Expect.equals(2.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.yyyw);
-  Expect.equals(2.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.yyzx);
-  Expect.equals(2.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.yyzy);
-  Expect.equals(2.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.yyzz);
-  Expect.equals(2.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.yyzw);
-  Expect.equals(2.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.yywx);
-  Expect.equals(2.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.yywy);
-  Expect.equals(2.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.yywz);
-  Expect.equals(2.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.yyww);
-  Expect.equals(2.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(4.0, c.w);
-}
-
-void testShuffle12() {
-  var m = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var c;
-  c = m.shuffle(Float32x4.yzxx);
-  Expect.equals(2.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.yzxy);
-  Expect.equals(2.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.yzxz);
-  Expect.equals(2.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.yzxw);
-  Expect.equals(2.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.yzyx);
-  Expect.equals(2.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.yzyy);
-  Expect.equals(2.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.yzyz);
-  Expect.equals(2.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.yzyw);
-  Expect.equals(2.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.yzzx);
-  Expect.equals(2.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.yzzy);
-  Expect.equals(2.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.yzzz);
-  Expect.equals(2.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.yzzw);
-  Expect.equals(2.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.yzwx);
-  Expect.equals(2.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.yzwy);
-  Expect.equals(2.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.yzwz);
-  Expect.equals(2.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.yzww);
-  Expect.equals(2.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(4.0, c.w);
-}
-
-void testShuffle13() {
-  var m = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var c;
-  c = m.shuffle(Float32x4.ywxx);
-  Expect.equals(2.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.ywxy);
-  Expect.equals(2.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.ywxz);
-  Expect.equals(2.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.ywxw);
-  Expect.equals(2.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.ywyx);
-  Expect.equals(2.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.ywyy);
-  Expect.equals(2.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.ywyz);
-  Expect.equals(2.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.ywyw);
-  Expect.equals(2.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.ywzx);
-  Expect.equals(2.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.ywzy);
-  Expect.equals(2.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.ywzz);
-  Expect.equals(2.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.ywzw);
-  Expect.equals(2.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.ywwx);
-  Expect.equals(2.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.ywwy);
-  Expect.equals(2.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.ywwz);
-  Expect.equals(2.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.ywww);
-  Expect.equals(2.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(4.0, c.w);
-}
-
-void testShuffle20() {
-  var m = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var c;
-  c = m.shuffle(Float32x4.zxxx);
-  Expect.equals(3.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.zxxy);
-  Expect.equals(3.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.zxxz);
-  Expect.equals(3.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.zxxw);
-  Expect.equals(3.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.zxyx);
-  Expect.equals(3.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.zxyy);
-  Expect.equals(3.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.zxyz);
-  Expect.equals(3.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.zxyw);
-  Expect.equals(3.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.zxzx);
-  Expect.equals(3.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.zxzy);
-  Expect.equals(3.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.zxzz);
-  Expect.equals(3.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.zxzw);
-  Expect.equals(3.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.zxwx);
-  Expect.equals(3.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.zxwy);
-  Expect.equals(3.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.zxwz);
-  Expect.equals(3.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.zxww);
-  Expect.equals(3.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(4.0, c.w);
-}
-
-void testShuffle21() {
-  var m = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var c;
-  c = m.shuffle(Float32x4.zyxx);
-  Expect.equals(3.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.zyxy);
-  Expect.equals(3.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.zyxz);
-  Expect.equals(3.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.zyxw);
-  Expect.equals(3.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.zyyx);
-  Expect.equals(3.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.zyyy);
-  Expect.equals(3.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.zyyz);
-  Expect.equals(3.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.zyyw);
-  Expect.equals(3.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.zyzx);
-  Expect.equals(3.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.zyzy);
-  Expect.equals(3.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.zyzz);
-  Expect.equals(3.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.zyzw);
-  Expect.equals(3.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.zywx);
-  Expect.equals(3.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.zywy);
-  Expect.equals(3.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.zywz);
-  Expect.equals(3.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.zyww);
-  Expect.equals(3.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(4.0, c.w);
-}
-
-void testShuffle22() {
-  var m = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var c;
-  c = m.shuffle(Float32x4.zzxx);
-  Expect.equals(3.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.zzxy);
-  Expect.equals(3.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.zzxz);
-  Expect.equals(3.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.zzxw);
-  Expect.equals(3.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.zzyx);
-  Expect.equals(3.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.zzyy);
-  Expect.equals(3.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.zzyz);
-  Expect.equals(3.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.zzyw);
-  Expect.equals(3.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.zzzx);
-  Expect.equals(3.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.zzzy);
-  Expect.equals(3.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.zzzz);
-  Expect.equals(3.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.zzzw);
-  Expect.equals(3.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.zzwx);
-  Expect.equals(3.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.zzwy);
-  Expect.equals(3.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.zzwz);
-  Expect.equals(3.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.zzww);
-  Expect.equals(3.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(4.0, c.w);
-}
-
-void testShuffle23() {
-  var m = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var c;
-  c = m.shuffle(Float32x4.zwxx);
-  Expect.equals(3.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.zwxy);
-  Expect.equals(3.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.zwxz);
-  Expect.equals(3.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.zwxw);
-  Expect.equals(3.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.zwyx);
-  Expect.equals(3.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.zwyy);
-  Expect.equals(3.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.zwyz);
-  Expect.equals(3.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.zwyw);
-  Expect.equals(3.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.zwzx);
-  Expect.equals(3.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.zwzy);
-  Expect.equals(3.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.zwzz);
-  Expect.equals(3.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.zwzw);
-  Expect.equals(3.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.zwwx);
-  Expect.equals(3.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.zwwy);
-  Expect.equals(3.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.zwwz);
-  Expect.equals(3.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.zwww);
-  Expect.equals(3.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(4.0, c.w);
-}
-
-void testShuffle30() {
-  var m = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var c;
-  c = m.shuffle(Float32x4.wxxx);
-  Expect.equals(4.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.wxxy);
-  Expect.equals(4.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.wxxz);
-  Expect.equals(4.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.wxxw);
-  Expect.equals(4.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.wxyx);
-  Expect.equals(4.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.wxyy);
-  Expect.equals(4.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.wxyz);
-  Expect.equals(4.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.wxyw);
-  Expect.equals(4.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.wxzx);
-  Expect.equals(4.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.wxzy);
-  Expect.equals(4.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.wxzz);
-  Expect.equals(4.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.wxzw);
-  Expect.equals(4.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.wxwx);
-  Expect.equals(4.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.wxwy);
-  Expect.equals(4.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.wxwz);
-  Expect.equals(4.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.wxww);
-  Expect.equals(4.0, c.x);
-  Expect.equals(1.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(4.0, c.w);
-}
-
-void testShuffle31() {
-  var m = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var c;
-  c = m.shuffle(Float32x4.wyxx);
-  Expect.equals(4.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.wyxy);
-  Expect.equals(4.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.wyxz);
-  Expect.equals(4.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.wyxw);
-  Expect.equals(4.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.wyyx);
-  Expect.equals(4.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.wyyy);
-  Expect.equals(4.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.wyyz);
-  Expect.equals(4.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.wyyw);
-  Expect.equals(4.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.wyzx);
-  Expect.equals(4.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.wyzy);
-  Expect.equals(4.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.wyzz);
-  Expect.equals(4.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.wyzw);
-  Expect.equals(4.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.wywx);
-  Expect.equals(4.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.wywy);
-  Expect.equals(4.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.wywz);
-  Expect.equals(4.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.wyww);
-  Expect.equals(4.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(4.0, c.w);
-}
-
-void testShuffle32() {
-  var m = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var c;
-  c = m.shuffle(Float32x4.wzxx);
-  Expect.equals(4.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.wzxy);
-  Expect.equals(4.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.wzxz);
-  Expect.equals(4.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.wzxw);
-  Expect.equals(4.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.wzyx);
-  Expect.equals(4.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.wzyy);
-  Expect.equals(4.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.wzyz);
-  Expect.equals(4.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.wzyw);
-  Expect.equals(4.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.wzzx);
-  Expect.equals(4.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.wzzy);
-  Expect.equals(4.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.wzzz);
-  Expect.equals(4.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.wzzw);
-  Expect.equals(4.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.wzwx);
-  Expect.equals(4.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.wzwy);
-  Expect.equals(4.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.wzwz);
-  Expect.equals(4.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.wzww);
-  Expect.equals(4.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(4.0, c.w);
-}
-
-void testShuffle33() {
-  var m = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var c;
-  c = m.shuffle(Float32x4.wwxx);
-  Expect.equals(4.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.wwxy);
-  Expect.equals(4.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.wwxz);
-  Expect.equals(4.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.wwxw);
-  Expect.equals(4.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(1.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.wwyx);
-  Expect.equals(4.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.wwyy);
-  Expect.equals(4.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.wwyz);
-  Expect.equals(4.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.wwyw);
-  Expect.equals(4.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.wwzx);
-  Expect.equals(4.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.wwzy);
-  Expect.equals(4.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.wwzz);
-  Expect.equals(4.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.wwzw);
-  Expect.equals(4.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(4.0, c.w);
-  c = m.shuffle(Float32x4.wwwx);
-  Expect.equals(4.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(1.0, c.w);
-  c = m.shuffle(Float32x4.wwwy);
-  Expect.equals(4.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(2.0, c.w);
-  c = m.shuffle(Float32x4.wwwz);
-  Expect.equals(4.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(3.0, c.w);
-  c = m.shuffle(Float32x4.wwww);
-  Expect.equals(4.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(4.0, c.w);
-}
-
-void testShuffleNonConstant(mask) {
-  var m = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var c;
-  c = m.shuffle(mask);
-  if (mask == 1) {
-    Expect.equals(2.0, c.x);
-    Expect.equals(1.0, c.y);
-    Expect.equals(1.0, c.z);
-    Expect.equals(1.0, c.w);
-  } else {
-    Expect.equals(Float32x4.yyyy + 1, mask);
-    Expect.equals(3.0, c.x);
-    Expect.equals(2.0, c.y);
-    Expect.equals(2.0, c.z);
-    Expect.equals(2.0, c.w);
-  }
-}
-
-void testInvalidShuffle(mask) {
-  // Not a valid mask.
-  Expect.isFalse(mask <= 255 && mask >= 0);
-  var m = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var c;
-  Expect.throws(() {
-    c = m.shuffle(mask);
-  });
-}
-
-void testShuffle() {
-  var m = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var c;
-  c = m.shuffle(Float32x4.wzyx);
-  Expect.equals(4.0, c.x);
-  Expect.equals(3.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(1.0, c.w);
-}
-
-main() {
-  var xxxx = Float32x4.xxxx + 1;
-  var yyyy = Float32x4.yyyy + 1;
-  for (int i = 0; i < 20; i++) {
-    testShuffle();
-    testShuffle00();
-    testShuffle01();
-    testShuffle02();
-    testShuffle03();
-    testShuffle10();
-    testShuffle11();
-    testShuffle12();
-    testShuffle13();
-    testShuffle20();
-    testShuffle21();
-    testShuffle22();
-    testShuffle23();
-    testShuffle30();
-    testShuffle31();
-    testShuffle32();
-    testShuffle33();
-    testShuffleNonConstant(xxxx);
-    testShuffleNonConstant(yyyy);
-    testInvalidShuffle(256);
-    testInvalidShuffle(-1);
-  }
-}
diff --git a/tests/lib_2/typed_data/float32x4_sign_mask_test.dart b/tests/lib_2/typed_data/float32x4_sign_mask_test.dart
deleted file mode 100644
index 57dac65808d..00000000000
--- a/tests/lib_2/typed_data/float32x4_sign_mask_test.dart
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-// Library tag to be able to run in html test framework.
-library float32x4_sign_mask;
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-void testImmediates() {
-  var f = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var m = f.signMask;
-  Expect.equals(0x0, m);
-  f = new Float32x4(-1.0, -2.0, -3.0, -0.0);
-  m = f.signMask;
-  Expect.equals(0xf, m);
-  f = new Float32x4(-1.0, 2.0, 3.0, 4.0);
-  m = f.signMask;
-  Expect.equals(0x1, m);
-  f = new Float32x4(1.0, -2.0, 3.0, 4.0);
-  m = f.signMask;
-  Expect.equals(0x2, m);
-  f = new Float32x4(1.0, 2.0, -3.0, 4.0);
-  m = f.signMask;
-  Expect.equals(0x4, m);
-  f = new Float32x4(1.0, 2.0, 3.0, -4.0);
-  m = f.signMask;
-  Expect.equals(0x8, m);
-}
-
-void testZero() {
-  var f = new Float32x4(0.0, 0.0, 0.0, 0.0);
-  var m = f.signMask;
-  Expect.equals(0x0, m);
-  f = new Float32x4(-0.0, -0.0, -0.0, -0.0);
-  m = f.signMask;
-  Expect.equals(0xf, m);
-}
-
-void testArithmetic() {
-  var a = new Float32x4(1.0, 1.0, 1.0, 1.0);
-  var b = new Float32x4(2.0, 2.0, 2.0, 2.0);
-  var c = new Float32x4(-1.0, -1.0, -1.0, -1.0);
-  var m1 = (a - b).signMask;
-  Expect.equals(0xf, m1);
-  var m2 = (b - a).signMask;
-  Expect.equals(0x0, m2);
-  var m3 = (c * c).signMask;
-  Expect.equals(0x0, m3);
-  var m4 = (a * c).signMask;
-  Expect.equals(0xf, m4);
-}
-
-main() {
-  for (int i = 0; i < 2000; i++) {
-    testImmediates();
-    testZero();
-    testArithmetic();
-  }
-}
diff --git a/tests/lib_2/typed_data/float32x4_static_test.dart b/tests/lib_2/typed_data/float32x4_static_test.dart
deleted file mode 100644
index 3eab5dec808..00000000000
--- a/tests/lib_2/typed_data/float32x4_static_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Library tag to be able to run in html test framework.
-library float32x4_static_test;
-
-import 'dart:typed_data';
-
-main() {
-  var str = "foo";
-  new Float32x4(str, 2.0, 3.0, 4.0);
-  //            ^^^
-  // [analyzer] COMPILE_TIME_ERROR.ARGUMENT_TYPE_NOT_ASSIGNABLE
-  // [cfe] The argument type 'String' can't be assigned to the parameter type 'double'.
-}
diff --git a/tests/lib_2/typed_data/float32x4_test.dart b/tests/lib_2/typed_data/float32x4_test.dart
deleted file mode 100644
index e2ca1846de2..00000000000
--- a/tests/lib_2/typed_data/float32x4_test.dart
+++ /dev/null
@@ -1,527 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--max_deoptimization_counter_threshold=1000 --optimization-counter-threshold=10 --no-background-compilation
-// VMOptions=--no-intrinsify
-
-// @dart = 2.9
-
-// Library tag to be able to run in html test framework.
-library float32x4_test;
-
-import 'dart:typed_data';
-import "package:expect/expect.dart";
-
-testAdd() {
-  var m = new Float32x4(-1.0, -2.0, -3.0, -4.0);
-  var n = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var o = m + n;
-  Expect.equals(0.0, o.x);
-  Expect.equals(0.0, o.y);
-  Expect.equals(0.0, o.z);
-  Expect.equals(0.0, o.w);
-}
-
-testNegate() {
-  var m = new Float32x4(1.0, 2.0, -3.0, -4.0);
-  m = -m;
-  Expect.equals(-1.0, m.x);
-  Expect.equals(-2.0, m.y);
-  Expect.equals(3.0, m.z);
-  Expect.equals(4.0, m.w);
-}
-
-testSub() {
-  var m = new Float32x4(-1.0, -2.0, -3.0, -4.0);
-  var n = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var o = m - n;
-  Expect.equals(-2.0, o.x);
-  Expect.equals(-4.0, o.y);
-  Expect.equals(-6.0, o.z);
-  Expect.equals(-8.0, o.w);
-}
-
-testMul() {
-  var m = new Float32x4(-1.0, -2.0, -3.0, -4.0);
-  var n = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var o = m * n;
-  Expect.equals(-1.0, o.x);
-  Expect.equals(-4.0, o.y);
-  Expect.equals(-9.0, o.z);
-  Expect.equals(-16.0, o.w);
-}
-
-testDiv() {
-  var m = new Float32x4(-1.0, -2.0, -3.0, -4.0);
-  var n = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var o = m / n;
-  Expect.equals(-1.0, o.x);
-  Expect.equals(-1.0, o.y);
-  Expect.equals(-1.0, o.z);
-  Expect.equals(-1.0, o.w);
-}
-
-testComparison() {
-  var m = new Float32x4(1.0, 2.0, 0.1, 0.001);
-  var n = new Float32x4(2.0, 2.0, 0.001, 0.1);
-  var cmp;
-  cmp = m.lessThan(n);
-  Expect.equals(-1, cmp.x);
-  Expect.equals(0x0, cmp.y);
-  Expect.equals(0x0, cmp.z);
-  Expect.equals(-1, cmp.w);
-
-  cmp = m.lessThanOrEqual(n);
-  Expect.equals(-1, cmp.x);
-  Expect.equals(-1, cmp.y);
-  Expect.equals(0x0, cmp.z);
-  Expect.equals(-1, cmp.w);
-
-  cmp = m.equal(n);
-  Expect.equals(0x0, cmp.x);
-  Expect.equals(-1, cmp.y);
-  Expect.equals(0x0, cmp.z);
-  Expect.equals(0x0, cmp.w);
-
-  cmp = m.notEqual(n);
-  Expect.equals(-1, cmp.x);
-  Expect.equals(0x0, cmp.y);
-  Expect.equals(-1, cmp.z);
-  Expect.equals(-1, cmp.w);
-
-  cmp = m.greaterThanOrEqual(n);
-  Expect.equals(0x0, cmp.x);
-  Expect.equals(-1, cmp.y);
-  Expect.equals(-1, cmp.z);
-  Expect.equals(0x0, cmp.w);
-
-  cmp = m.greaterThan(n);
-  Expect.equals(0x0, cmp.x);
-  Expect.equals(0x0, cmp.y);
-  Expect.equals(-1, cmp.z);
-  Expect.equals(0x0, cmp.w);
-}
-
-testAbs() {
-  var m = new Float32x4(1.0, -2.0, 3.0, -4.0);
-  m = m.abs();
-  Expect.equals(1.0, m.x);
-  Expect.equals(2.0, m.y);
-  Expect.equals(3.0, m.z);
-  Expect.equals(4.0, m.w);
-}
-
-testScale() {
-  var m = new Float32x4(1.0, -2.0, 3.0, -4.0);
-  m = m.scale(20.0);
-  Expect.equals(20.0, m.x);
-  Expect.equals(-40.0, m.y);
-  Expect.equals(60.0, m.z);
-  Expect.equals(-80.0, m.w);
-}
-
-testClamp() {
-  var m = new Float32x4(1.0, -2.0, 3.0, -4.0);
-  var lo = new Float32x4(0.0, 0.0, 0.0, 0.0);
-  var hi = new Float32x4(2.0, 2.0, 2.0, 2.0);
-  m = m.clamp(lo, hi);
-  Expect.equals(1.0, m.x);
-  Expect.equals(0.0, m.y);
-  Expect.equals(2.0, m.z);
-  Expect.equals(0.0, m.w);
-}
-
-testShuffle() {
-  var m = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var xxxx = m.shuffle(Float32x4.xxxx);
-  Expect.equals(1.0, xxxx.x);
-  Expect.equals(1.0, xxxx.y);
-  Expect.equals(1.0, xxxx.z);
-  Expect.equals(1.0, xxxx.w);
-  var yyyy = m.shuffle(Float32x4.yyyy);
-  Expect.equals(2.0, yyyy.x);
-  Expect.equals(2.0, yyyy.y);
-  Expect.equals(2.0, yyyy.z);
-  Expect.equals(2.0, yyyy.w);
-  var zzzz = m.shuffle(Float32x4.zzzz);
-  Expect.equals(3.0, zzzz.x);
-  Expect.equals(3.0, zzzz.y);
-  Expect.equals(3.0, zzzz.z);
-  Expect.equals(3.0, zzzz.w);
-  var wwww = m.shuffle(Float32x4.wwww);
-  Expect.equals(4.0, wwww.x);
-  Expect.equals(4.0, wwww.y);
-  Expect.equals(4.0, wwww.z);
-  Expect.equals(4.0, wwww.w);
-  var wzyx = m.shuffle(Float32x4.wzyx);
-  Expect.equals(4.0, wzyx.x);
-  Expect.equals(3.0, wzyx.y);
-  Expect.equals(2.0, wzyx.z);
-  Expect.equals(1.0, wzyx.w);
-  var wwzz = m.shuffle(Float32x4.wwzz);
-  Expect.equals(4.0, wwzz.x);
-  Expect.equals(4.0, wwzz.y);
-  Expect.equals(3.0, wwzz.z);
-  Expect.equals(3.0, wwzz.w);
-  var xxyy = m.shuffle(Float32x4.xxyy);
-  Expect.equals(1.0, xxyy.x);
-  Expect.equals(1.0, xxyy.y);
-  Expect.equals(2.0, xxyy.z);
-  Expect.equals(2.0, xxyy.w);
-  var yyww = m.shuffle(Float32x4.yyww);
-  Expect.equals(2.0, yyww.x);
-  Expect.equals(2.0, yyww.y);
-  Expect.equals(4.0, yyww.z);
-  Expect.equals(4.0, yyww.w);
-}
-
-testMin() {
-  var m = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var n = new Float32x4(1.0, 0.0, 2.5, 5.0);
-  m = m.min(n);
-  Expect.equals(1.0, m.x);
-  Expect.equals(0.0, m.y);
-  Expect.equals(2.5, m.z);
-  Expect.equals(4.0, m.w);
-}
-
-testMax() {
-  var m = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var n = new Float32x4(1.0, 0.0, 2.5, 5.0);
-  m = m.max(n);
-  Expect.equals(1.0, m.x);
-  Expect.equals(2.0, m.y);
-  Expect.equals(3.0, m.z);
-  Expect.equals(5.0, m.w);
-}
-
-testSqrt() {
-  var m = new Float32x4(1.0, 4.0, 9.0, 16.0);
-  m = m.sqrt();
-  Expect.equals(1.0, m.x);
-  Expect.equals(2.0, m.y);
-  Expect.equals(3.0, m.z);
-  Expect.equals(4.0, m.w);
-}
-
-testReciprocal() {
-  var m = new Float32x4(1.0, 4.0, 9.0, 16.0);
-  m = m.reciprocal();
-  Expect.approxEquals(1.0, m.x, 0.001);
-  Expect.approxEquals(0.25, m.y, 0.001);
-  Expect.approxEquals(0.1111111, m.z, 0.001);
-  Expect.approxEquals(0.0625, m.w, 0.001);
-}
-
-testReciprocalSqrt() {
-  var m = new Float32x4(1.0, 0.25, 0.111111, 0.0625);
-  m = m.reciprocalSqrt();
-  Expect.approxEquals(1.0, m.x, 0.001);
-  Expect.approxEquals(2.0, m.y, 0.001);
-  Expect.approxEquals(3.0, m.z, 0.001);
-  Expect.approxEquals(4.0, m.w, 0.001);
-}
-
-testSelect() {
-  var m = new Int32x4.bool(true, true, false, false);
-  var t = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var f = new Float32x4(5.0, 6.0, 7.0, 8.0);
-  var s = m.select(t, f);
-  Expect.equals(1.0, s.x);
-  Expect.equals(2.0, s.y);
-  Expect.equals(7.0, s.z);
-  Expect.equals(8.0, s.w);
-}
-
-testConversions() {
-  var m = new Int32x4(0x3F800000, 0x40000000, 0x40400000, 0x40800000);
-  var n = new Float32x4.fromInt32x4Bits(m);
-  Expect.equals(1.0, n.x);
-  Expect.equals(2.0, n.y);
-  Expect.equals(3.0, n.z);
-  Expect.equals(4.0, n.w);
-  n = new Float32x4(5.0, 6.0, 7.0, 8.0);
-  m = new Int32x4.fromFloat32x4Bits(n);
-  Expect.equals(0x40A00000, m.x);
-  Expect.equals(0x40C00000, m.y);
-  Expect.equals(0x40E00000, m.z);
-  Expect.equals(0x41000000, m.w);
-  // Flip sign using bit-wise operators.
-  n = new Float32x4(9.0, 10.0, 11.0, 12.0);
-  m = new Int32x4(0x80000000, 0x80000000, 0x80000000, 0x80000000);
-  var nMask = new Int32x4.fromFloat32x4Bits(n);
-  nMask = nMask ^ m; // flip sign.
-  n = new Float32x4.fromInt32x4Bits(nMask);
-  Expect.equals(-9.0, n.x);
-  Expect.equals(-10.0, n.y);
-  Expect.equals(-11.0, n.z);
-  Expect.equals(-12.0, n.w);
-  nMask = new Int32x4.fromFloat32x4Bits(n);
-  nMask = nMask ^ m; // flip sign.
-  n = new Float32x4.fromInt32x4Bits(nMask);
-  Expect.equals(9.0, n.x);
-  Expect.equals(10.0, n.y);
-  Expect.equals(11.0, n.z);
-  Expect.equals(12.0, n.w);
-}
-
-testBitOperators() {
-  var m = new Int32x4(0xAAAAAAA, 0xAAAAAAA, 0xAAAAAAA, 0xAAAAAAA);
-  var n = new Int32x4(0x5555555, 0x5555555, 0x5555555, 0x5555555);
-  Expect.equals(0xAAAAAAA, m.x);
-  Expect.equals(0xAAAAAAA, m.y);
-  Expect.equals(0xAAAAAAA, m.z);
-  Expect.equals(0xAAAAAAA, m.w);
-  Expect.equals(0x5555555, n.x);
-  Expect.equals(0x5555555, n.y);
-  Expect.equals(0x5555555, n.z);
-  Expect.equals(0x5555555, n.w);
-  Expect.equals(true, n.flagX);
-  Expect.equals(true, n.flagY);
-  Expect.equals(true, n.flagZ);
-  Expect.equals(true, n.flagW);
-  var o = m | n; // or
-  Expect.equals(0xFFFFFFF, o.x);
-  Expect.equals(0xFFFFFFF, o.y);
-  Expect.equals(0xFFFFFFF, o.z);
-  Expect.equals(0xFFFFFFF, o.w);
-  Expect.equals(true, o.flagX);
-  Expect.equals(true, o.flagY);
-  Expect.equals(true, o.flagZ);
-  Expect.equals(true, o.flagW);
-  o = m & n; // and
-  Expect.equals(0x0, o.x);
-  Expect.equals(0x0, o.y);
-  Expect.equals(0x0, o.z);
-  Expect.equals(0x0, o.w);
-  n = n.withX(0xAAAAAAA);
-  n = n.withY(0xAAAAAAA);
-  n = n.withZ(0xAAAAAAA);
-  n = n.withW(0xAAAAAAA);
-  Expect.equals(0xAAAAAAA, n.x);
-  Expect.equals(0xAAAAAAA, n.y);
-  Expect.equals(0xAAAAAAA, n.z);
-  Expect.equals(0xAAAAAAA, n.w);
-  o = m ^ n; // xor
-  Expect.equals(0x0, o.x);
-  Expect.equals(0x0, o.y);
-  Expect.equals(0x0, o.z);
-  Expect.equals(0x0, o.w);
-  Expect.equals(false, o.flagX);
-  Expect.equals(false, o.flagY);
-  Expect.equals(false, o.flagZ);
-  Expect.equals(false, o.flagW);
-}
-
-testSetters() {
-  var f = new Float32x4.zero();
-  Expect.equals(0.0, f.x);
-  Expect.equals(0.0, f.y);
-  Expect.equals(0.0, f.z);
-  Expect.equals(0.0, f.w);
-  f = f.withX(4.0);
-  Expect.equals(4.0, f.x);
-  f = f.withY(3.0);
-  Expect.equals(3.0, f.y);
-  f = f.withZ(2.0);
-  Expect.equals(2.0, f.z);
-  f = f.withW(1.0);
-  Expect.equals(1.0, f.w);
-  f = new Float32x4.zero();
-  f = f.withX(4.0).withZ(2.0).withW(1.0).withY(3.0);
-  Expect.equals(4.0, f.x);
-  Expect.equals(3.0, f.y);
-  Expect.equals(2.0, f.z);
-  Expect.equals(1.0, f.w);
-  var m = new Int32x4.bool(false, false, false, false);
-  Expect.equals(false, m.flagX);
-  Expect.equals(false, m.flagY);
-  Expect.equals(false, m.flagZ);
-  Expect.equals(false, m.flagW);
-  m = m.withFlagX(true);
-  Expect.equals(true, m.flagX);
-  Expect.equals(false, m.flagY);
-  Expect.equals(false, m.flagZ);
-  Expect.equals(false, m.flagW);
-  m = m.withFlagY(true);
-  Expect.equals(true, m.flagX);
-  Expect.equals(true, m.flagY);
-  Expect.equals(false, m.flagZ);
-  Expect.equals(false, m.flagW);
-  m = m.withFlagZ(true);
-  Expect.equals(true, m.flagX);
-  Expect.equals(true, m.flagY);
-  Expect.equals(true, m.flagZ);
-  Expect.equals(false, m.flagW);
-  m = m.withFlagW(true);
-  Expect.equals(true, m.flagX);
-  Expect.equals(true, m.flagY);
-  Expect.equals(true, m.flagZ);
-  Expect.equals(true, m.flagW);
-}
-
-testGetters() {
-  var f = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  Expect.equals(1.0, f.x);
-  Expect.equals(2.0, f.y);
-  Expect.equals(3.0, f.z);
-  Expect.equals(4.0, f.w);
-  var m = new Int32x4.bool(false, true, true, false);
-  Expect.equals(false, m.flagX);
-  Expect.equals(true, m.flagY);
-  Expect.equals(true, m.flagZ);
-  Expect.equals(false, m.flagW);
-}
-
-void testSplat() {
-  var f = new Float32x4.splat(2.0);
-  Expect.equals(2.0, f.x);
-  Expect.equals(2.0, f.y);
-  Expect.equals(2.0, f.z);
-  Expect.equals(2.0, f.w);
-}
-
-void testZero() {
-  var f = new Float32x4.zero();
-  Expect.equals(0.0, f.x);
-  Expect.equals(0.0, f.y);
-  Expect.equals(0.0, f.z);
-  Expect.equals(0.0, f.w);
-}
-
-void testConstructor() {
-  var f = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  Expect.equals(1.0, f.x);
-  Expect.equals(2.0, f.y);
-  Expect.equals(3.0, f.z);
-  Expect.equals(4.0, f.w);
-}
-
-void testBadArguments() {
-  Expect.throwsArgumentError(() => new Float32x4(null, 2.0, 3.0, 4.0));
-  Expect.throwsArgumentError(() => new Float32x4(1.0, null, 3.0, 4.0));
-  Expect.throwsArgumentError(() => new Float32x4(1.0, 2.0, null, 4.0));
-  Expect.throwsArgumentError(() => new Float32x4(1.0, 2.0, 3.0, null));
-  // Use local variable typed as "dynamic" to avoid static warnings.
-  dynamic str = "foo";
-  Expect.throws(() => new Float32x4(str, 2.0, 3.0, 4.0),
-      (e) => e is ArgumentError || e is TypeError);
-  Expect.throws(() => new Float32x4(1.0, str, 3.0, 4.0),
-      (e) => e is ArgumentError || e is TypeError);
-  Expect.throws(() => new Float32x4(1.0, 2.0, str, 4.0),
-      (e) => e is ArgumentError || e is TypeError);
-  Expect.throws(() => new Float32x4(1.0, 2.0, 3.0, str),
-      (e) => e is ArgumentError || e is TypeError);
-}
-
-void testSpecialValues() {
-  /// Same as Expect.identical, but also works with NaNs and -0.0 for dart2js.
-  void checkEquals(expected, actual) {
-    if (expected.isNaN) {
-      Expect.isTrue(actual.isNaN);
-    } else if (expected == 0.0 && expected.isNegative) {
-      Expect.isTrue(actual == 0.0 && actual.isNegative);
-    } else {
-      Expect.equals(expected, actual);
-    }
-  }
-
-  var pairs = [
-    [0.0, 0.0],
-    [5e-324, 0.0],
-    [2.225073858507201e-308, 0.0],
-    [2.2250738585072014e-308, 0.0],
-    [0.9999999999999999, 1.0],
-    [1.0, 1.0],
-    [1.0000000000000002, 1.0],
-    [4294967295.0, 4294967296.0],
-    [4294967296.0, 4294967296.0],
-    [4503599627370495.5, 4503599627370496.0],
-    [9007199254740992.0, 9007199254740992.0],
-    [1.7976931348623157e+308, double.infinity],
-    [0.49999999999999994, 0.5],
-    [4503599627370497.0, 4503599627370496.0],
-    [9007199254740991.0, 9007199254740992.0],
-    [double.infinity, double.infinity],
-    [double.nan, double.nan],
-  ];
-
-  var conserved = [
-    1.401298464324817e-45,
-    1.1754942106924411e-38,
-    1.1754943508222875e-38,
-    0.9999999403953552,
-    1.0000001192092896,
-    8388607.5,
-    8388608.0,
-    3.4028234663852886e+38,
-    8388609.0,
-    16777215.0,
-  ];
-
-  var minusPairs = pairs.map((pair) {
-    return [-pair[0], -pair[1]];
-  });
-  var conservedPairs = conserved.map((value) => [value, value]);
-
-  var allTests = [pairs, minusPairs, conservedPairs].expand((x) => x);
-
-  for (var pair in allTests) {
-    var input = pair[0];
-    var expected = pair[1];
-    var f;
-    f = new Float32x4(input, 2.0, 3.0, 4.0);
-    checkEquals(expected, f.x);
-    Expect.equals(2.0, f.y);
-    Expect.equals(3.0, f.z);
-    Expect.equals(4.0, f.w);
-
-    f = new Float32x4(1.0, input, 3.0, 4.0);
-    Expect.equals(1.0, f.x);
-    checkEquals(expected, f.y);
-    Expect.equals(3.0, f.z);
-    Expect.equals(4.0, f.w);
-
-    f = new Float32x4(1.0, 2.0, input, 4.0);
-    Expect.equals(1.0, f.x);
-    Expect.equals(2.0, f.y);
-    checkEquals(expected, f.z);
-    Expect.equals(4.0, f.w);
-
-    f = new Float32x4(1.0, 2.0, 3.0, input);
-    Expect.equals(1.0, f.x);
-    Expect.equals(2.0, f.y);
-    Expect.equals(3.0, f.z);
-    checkEquals(expected, f.w);
-  }
-}
-
-main() {
-  for (int i = 0; i < 20; i++) {
-    testConstructor();
-    testSplat();
-    testZero();
-    testAdd();
-    testGetters();
-    testSetters();
-    testBitOperators();
-    testConversions();
-    testSelect();
-    testShuffle();
-    testSub();
-    testNegate();
-    testMul();
-    testDiv();
-    testComparison();
-    testScale();
-    testClamp();
-    testAbs();
-    testMin();
-    testMax();
-    testSqrt();
-    testReciprocal();
-    testReciprocalSqrt();
-    testBadArguments();
-    testSpecialValues();
-  }
-}
diff --git a/tests/lib_2/typed_data/float32x4_transpose_test.dart b/tests/lib_2/typed_data/float32x4_transpose_test.dart
deleted file mode 100644
index d82711ef9d9..00000000000
--- a/tests/lib_2/typed_data/float32x4_transpose_test.dart
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-// Library tag to be able to run in html test framework.
-library float32x4_transpose_test;
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-void transpose(Float32x4List m) {
-  Expect.equals(4, m.length);
-  var m0 = m[0];
-  var m1 = m[1];
-  var m2 = m[2];
-  var m3 = m[3];
-
-  var t0 = m0.shuffleMix(m1, Float32x4.xyxy);
-  var t1 = m2.shuffleMix(m3, Float32x4.xyxy);
-  m[0] = t0.shuffleMix(t1, Float32x4.xzxz);
-  m[1] = t0.shuffleMix(t1, Float32x4.ywyw);
-
-  var t2 = m0.shuffleMix(m1, Float32x4.zwzw);
-  var t3 = m2.shuffleMix(m3, Float32x4.zwzw);
-  m[2] = t2.shuffleMix(t3, Float32x4.xzxz);
-  m[3] = t2.shuffleMix(t3, Float32x4.ywyw);
-}
-
-void testTranspose(Float32x4List m, Float32x4List r) {
-  transpose(m); // In place transpose.
-  for (int i = 0; i < 4; i++) {
-    var a = m[i];
-    var b = r[i];
-    Expect.equals(b.x, a.x);
-    Expect.equals(b.y, a.y);
-    Expect.equals(b.z, a.z);
-    Expect.equals(b.w, a.w);
-  }
-}
-
-main() {
-  var A = new Float32x4List(4);
-  A[0] = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  A[1] = new Float32x4(5.0, 6.0, 7.0, 8.0);
-  A[2] = new Float32x4(9.0, 10.0, 11.0, 12.0);
-  A[3] = new Float32x4(13.0, 14.0, 15.0, 16.0);
-  var B = new Float32x4List(4);
-  B[0] = new Float32x4(1.0, 5.0, 9.0, 13.0);
-  B[1] = new Float32x4(2.0, 6.0, 10.0, 14.0);
-  B[2] = new Float32x4(3.0, 7.0, 11.0, 15.0);
-  B[3] = new Float32x4(4.0, 8.0, 12.0, 16.0);
-  var I = new Float32x4List(4);
-  I[0] = new Float32x4(1.0, 0.0, 0.0, 0.0);
-  I[1] = new Float32x4(0.0, 1.0, 0.0, 0.0);
-  I[2] = new Float32x4(0.0, 0.0, 1.0, 0.0);
-  I[3] = new Float32x4(0.0, 0.0, 0.0, 1.0);
-  for (int i = 0; i < 20; i++) {
-    var m = new Float32x4List.fromList(I);
-    testTranspose(m, I);
-    m = new Float32x4List.fromList(A);
-    testTranspose(m, B);
-  }
-}
diff --git a/tests/lib_2/typed_data/float32x4_two_arg_shuffle_test.dart b/tests/lib_2/typed_data/float32x4_two_arg_shuffle_test.dart
deleted file mode 100644
index 7ae0214b20e..00000000000
--- a/tests/lib_2/typed_data/float32x4_two_arg_shuffle_test.dart
+++ /dev/null
@@ -1,72 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-// Library tag to be able to run in html test framework.
-library float32x4_two_arg_shuffle_test;
-
-import 'dart:typed_data';
-import "package:expect/expect.dart";
-
-testWithZWInXY() {
-  Float32x4 a = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  Float32x4 b = new Float32x4(5.0, 6.0, 7.0, 8.0);
-  Float32x4 c = b.shuffleMix(a, Float32x4.zwzw);
-  Expect.equals(7.0, c.x);
-  Expect.equals(8.0, c.y);
-  Expect.equals(3.0, c.z);
-  Expect.equals(4.0, c.w);
-}
-
-testInterleaveXY() {
-  Float32x4 a = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  Float32x4 b = new Float32x4(5.0, 6.0, 7.0, 8.0);
-  Float32x4 c = a.shuffleMix(b, Float32x4.xyxy).shuffle(Float32x4.xzyw);
-  Expect.equals(1.0, c.x);
-  Expect.equals(5.0, c.y);
-  Expect.equals(2.0, c.z);
-  Expect.equals(6.0, c.w);
-}
-
-testInterleaveZW() {
-  Float32x4 a = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  Float32x4 b = new Float32x4(5.0, 6.0, 7.0, 8.0);
-  Float32x4 c = a.shuffleMix(b, Float32x4.zwzw).shuffle(Float32x4.xzyw);
-  Expect.equals(3.0, c.x);
-  Expect.equals(7.0, c.y);
-  Expect.equals(4.0, c.z);
-  Expect.equals(8.0, c.w);
-}
-
-testInterleaveXYPairs() {
-  Float32x4 a = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  Float32x4 b = new Float32x4(5.0, 6.0, 7.0, 8.0);
-  Float32x4 c = a.shuffleMix(b, Float32x4.xyxy);
-  Expect.equals(1.0, c.x);
-  Expect.equals(2.0, c.y);
-  Expect.equals(5.0, c.z);
-  Expect.equals(6.0, c.w);
-}
-
-testInterleaveZWPairs() {
-  Float32x4 a = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  Float32x4 b = new Float32x4(5.0, 6.0, 7.0, 8.0);
-  Float32x4 c = a.shuffleMix(b, Float32x4.zwzw);
-  Expect.equals(3.0, c.x);
-  Expect.equals(4.0, c.y);
-  Expect.equals(7.0, c.z);
-  Expect.equals(8.0, c.w);
-}
-
-main() {
-  for (int i = 0; i < 20; i++) {
-    testWithZWInXY();
-    testInterleaveXY();
-    testInterleaveZW();
-    testInterleaveXYPairs();
-    testInterleaveZWPairs();
-  }
-}
diff --git a/tests/lib_2/typed_data/float32x4_unbox_phi_test.dart b/tests/lib_2/typed_data/float32x4_unbox_phi_test.dart
deleted file mode 100644
index d95b0e6c1f5..00000000000
--- a/tests/lib_2/typed_data/float32x4_unbox_phi_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--max_deoptimization_counter_threshold=1000 --optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-// Library tag to be able to run in html test framework.
-library float32x4_unbox_regress_test;
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-double testUnboxPhi(Float32x4List data) {
-  var res = new Float32x4.zero();
-  for (int i = 0; i < data.length; i++) {
-    res += data[i];
-  }
-  return res.x + res.y + res.z + res.w;
-}
-
-main() {
-  Float32x4List list = new Float32x4List(10);
-  Float32List floatList = new Float32List.view(list.buffer);
-  for (int i = 0; i < floatList.length; i++) {
-    floatList[i] = i.toDouble();
-  }
-  for (int i = 0; i < 20; i++) {
-    double r = testUnboxPhi(list);
-    Expect.equals(780.0, r);
-  }
-}
diff --git a/tests/lib_2/typed_data/float32x4_unbox_regress_test.dart b/tests/lib_2/typed_data/float32x4_unbox_regress_test.dart
deleted file mode 100644
index 421355acda6..00000000000
--- a/tests/lib_2/typed_data/float32x4_unbox_regress_test.dart
+++ /dev/null
@@ -1,115 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--max_deoptimization_counter_threshold=1000 --optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-// Library tag to be able to run in html test framework.
-library float32x4_unbox_regress_test;
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-testListStore(array, index, value) {
-  array[index] = value;
-}
-
-void testListStoreDeopt() {
-  var list;
-  var value = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var smi = 12;
-  list = new Float32x4List(8);
-  for (int i = 0; i < 20; i++) {
-    testListStore(list, 0, value);
-  }
-
-  try {
-    // Without a proper check for SMI in the Float32x4 unbox instruction
-    // this might trigger a crash.
-    testListStore(list, 0, smi);
-  } catch (_) {}
-}
-
-testAdd(a, b) {
-  var c = a + b;
-  Expect.equals(3.0, c.x);
-  Expect.equals(5.0, c.y);
-  Expect.equals(7.0, c.z);
-  Expect.equals(9.0, c.w);
-}
-
-void testAddDeopt() {
-  var a = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var b = new Float32x4(2.0, 3.0, 4.0, 5.0);
-  var smi = 12;
-  for (int i = 0; i < 20; i++) {
-    testAdd(a, b);
-  }
-
-  try {
-    testAdd(a, smi);
-  } catch (_) {}
-}
-
-testGet(a) {
-  var c = a.x + a.y + a.z + a.w;
-  Expect.equals(10.0, c);
-}
-
-void testGetDeopt() {
-  var a = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var smi = 12;
-  for (int i = 0; i < 20; i++) {
-    testGet(a);
-  }
-
-  try {
-    testGet(12);
-  } catch (_) {}
-
-  for (int i = 0; i < 20; i++) {
-    testGet(a);
-  }
-}
-
-void testComparison(a, b) {
-  Int32x4 r = a.equal(b);
-  Expect.equals(true, r.flagX);
-  Expect.equals(false, r.flagY);
-  Expect.equals(false, r.flagZ);
-  Expect.equals(true, r.flagW);
-}
-
-void testComparisonDeopt() {
-  var a = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var b = new Float32x4(1.0, 2.1, 3.1, 4.0);
-  var smi = 12;
-
-  for (int i = 0; i < 20; i++) {
-    testComparison(a, b);
-  }
-
-  try {
-    testComparison(a, smi);
-  } catch (_) {}
-
-  for (int i = 0; i < 20; i++) {
-    testComparison(a, b);
-  }
-
-  try {
-    testComparison(smi, a);
-  } catch (_) {}
-
-  for (int i = 0; i < 20; i++) {
-    testComparison(a, b);
-  }
-}
-
-main() {
-  testListStoreDeopt();
-  testAddDeopt();
-  testGetDeopt();
-  testComparisonDeopt();
-}
diff --git a/tests/lib_2/typed_data/float64x2_clamp_test.dart b/tests/lib_2/typed_data/float64x2_clamp_test.dart
deleted file mode 100644
index ea028d07f39..00000000000
--- a/tests/lib_2/typed_data/float64x2_clamp_test.dart
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--intrinsify --optimization-counter-threshold=10 --no-background-compilation
-// VMOptions=--no-intrinsify --optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-// Library tag to be able to run in html test framework.
-library float64x2_clamp_test;
-
-import 'dart:math';
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-void testClampLowerGreaterThanUpper() {
-  Float64x2 l = new Float64x2(1.0, 1.0);
-  Float64x2 u = new Float64x2(-1.0, -1.0);
-  Float64x2 z = new Float64x2.zero();
-  Float64x2 a = z.clamp(l, u);
-  Expect.equals(a.x, 1.0);
-  Expect.equals(a.y, 1.0);
-}
-
-void testClamp() {
-  Float64x2 l = new Float64x2(-1.0, -1.0);
-  Float64x2 u = new Float64x2(1.0, 1.0);
-  Float64x2 z = new Float64x2.zero();
-  Float64x2 a = z.clamp(l, u);
-  Expect.equals(a.x, 0.0);
-  Expect.equals(a.y, 0.0);
-}
-
-void testNonZeroClamp() {
-  Float64x2 l = new Float64x2(-pow(123456.789, 123.1) as double, -234567.89);
-  Float64x2 u = new Float64x2(pow(123456.789, 123.1) as double, 234567.89);
-  Float64x2 v =
-      new Float64x2(-pow(123456789.123, 123.1) as double, 234567890.123);
-  Float64x2 a = v.clamp(l, u);
-  Expect.equals(a.x, -pow(123456.789, 123) as double);
-  Expect.equals(a.y, 234567.89);
-}
-
-Float64x2 negativeZeroClamp() {
-  final negZero = -Float64x2.zero();
-  return negZero.clamp(negZero, Float64x2.zero());
-}
-
-Float64x2 zeroClamp() {
-  final negOne = -Float64x2(1.0, 1.0);
-  return Float64x2.zero().clamp(negOne, -Float64x2.zero());
-}
-
-void testNegativeZeroClamp(Float64x2 unopt) {
-  final res = negativeZeroClamp();
-  Expect.equals(res.x.compareTo(unopt.x), 0);
-  Expect.equals(res.y.compareTo(unopt.y), 0);
-}
-
-void testZeroClamp(Float64x2 unopt) {
-  final res = zeroClamp();
-  Expect.equals(res.x.compareTo(unopt.x), 0);
-  Expect.equals(res.y.compareTo(unopt.y), 0);
-}
-
-main() {
-  final unoptNegZeroClamp = negativeZeroClamp();
-  final unoptZeroClamp = zeroClamp();
-  for (int i = 0; i < 2000; i++) {
-    testClampLowerGreaterThanUpper();
-    testClamp();
-    testNonZeroClamp();
-    testNegativeZeroClamp(unoptNegZeroClamp);
-    testZeroClamp(unoptZeroClamp);
-  }
-}
diff --git a/tests/lib_2/typed_data/float64x2_functional_test.dart b/tests/lib_2/typed_data/float64x2_functional_test.dart
deleted file mode 100644
index ac794cf43ca..00000000000
--- a/tests/lib_2/typed_data/float64x2_functional_test.dart
+++ /dev/null
@@ -1,297 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--max_deoptimization_counter_threshold=1000 --optimization-counter-threshold=10 --no-background-compilation
-// VMOptions=--no-intrinsify
-
-// @dart = 2.9
-
-library float64x2_functional_test;
-
-import 'dart:typed_data';
-import "package:expect/expect.dart";
-
-testConstructor() {
-  var a = new Float64x2(1.0, 2.0);
-  Expect.equals(1.0, a.x);
-  Expect.equals(2.0, a.y);
-  var b = new Float64x2.splat(1.0);
-  Expect.equals(1.0, b.x);
-  Expect.equals(1.0, b.y);
-  var c = new Float64x2.zero();
-  Expect.equals(0.0, c.x);
-  Expect.equals(0.0, c.y);
-}
-
-testCastConstructor() {
-  var a = new Float32x4(9.0, 8.0, 7.0, 6.0);
-  var b = new Float64x2.fromFloat32x4(a);
-  Expect.equals(9.0, b.x);
-  Expect.equals(8.0, b.y);
-  var c = new Float32x4.fromFloat64x2(b);
-  Expect.equals(9.0, c.x);
-  Expect.equals(8.0, c.y);
-  Expect.equals(0.0, c.z);
-  Expect.equals(0.0, c.w);
-}
-
-testLaneSetter() {
-  var a = new Float64x2.zero();
-  Expect.equals(0.0, a.x);
-  Expect.equals(0.0, a.y);
-  var b = a.withX(99.0);
-  Expect.equals(0.0, a.x);
-  Expect.equals(0.0, a.y);
-  Expect.equals(99.0, b.x);
-  Expect.equals(0.0, b.y);
-  var c = a.withY(88.0);
-  Expect.equals(0.0, a.x);
-  Expect.equals(0.0, a.y);
-  Expect.equals(0.0, c.x);
-  Expect.equals(88.0, c.y);
-  var d = c.withX(11.0);
-  Expect.equals(0.0, c.x);
-  Expect.equals(88.0, c.y);
-  Expect.equals(11.0, d.x);
-  Expect.equals(88.0, d.y);
-}
-
-testNegate() {
-  var m = new Float64x2(1.0, -2.0);
-  var o = -m;
-  Expect.equals(-1.0, o.x);
-  Expect.equals(2.0, o.y);
-}
-
-testAdd() {
-  var m = new Float64x2(1.0, -2.0);
-  var n = new Float64x2(1.0, 2.0);
-  var o = m + n;
-  Expect.equals(2.0, o.x);
-  Expect.equals(0.0, o.y);
-}
-
-testSub() {
-  var m = new Float64x2(1.5, -2.0);
-  var n = new Float64x2(1.0, 2.0);
-  var o = m - n;
-  Expect.equals(0.5, o.x);
-  Expect.equals(-4.0, o.y);
-}
-
-testMul() {
-  var m = new Float64x2(1.0, -2.0);
-  var n = new Float64x2(2.0, 2.0);
-  var o = m * n;
-  Expect.equals(2.0, o.x);
-  Expect.equals(-4.0, o.y);
-}
-
-testDiv() {
-  var m = new Float64x2(1.0, -2.0);
-  var n = new Float64x2(2.0, 2.0);
-  var o = m / n;
-  Expect.equals(0.5, o.x);
-  Expect.equals(-1.0, o.y);
-}
-
-testScale() {
-  var m = new Float64x2(1.0, 0.5);
-  var n = m.scale(2.0);
-  Expect.equals(2.0, n.x);
-  Expect.equals(1.0, n.y);
-}
-
-testAbs() {
-  var m = new Float64x2(1.0, -0.5).abs();
-  var n = new Float64x2(-2.0, 1.0).abs();
-  Expect.equals(1.0, m.x);
-  Expect.equals(0.5, m.y);
-  Expect.equals(2.0, n.x);
-  Expect.equals(1.0, n.y);
-}
-
-testClamp() {
-  var m = new Float64x2(1.0, -2.0);
-  var lo = new Float64x2(0.0, 0.5);
-  var hi = new Float64x2(2.0, 2.0);
-  m = m.clamp(lo, hi);
-  Expect.equals(1.0, m.x);
-  Expect.equals(0.5, m.y);
-}
-
-testSignMask() {
-  var m = new Float64x2(-1.0, -0.0);
-  Expect.equals(3, m.signMask);
-  m = new Float64x2(0.0, 0.0);
-  Expect.equals(0, m.signMask);
-  m = new Float64x2(-1.0, 0.0);
-  Expect.equals(1, m.signMask);
-  m = new Float64x2(1.0, -0.0);
-  Expect.equals(2, m.signMask);
-}
-
-testMin() {
-  var m = new Float64x2(0.0, -99.0);
-  var n = new Float64x2(-1.0, -1.0);
-  var o = m.min(n);
-  Expect.equals(-1.0, o.x);
-  Expect.equals(-99.0, o.y);
-}
-
-testMax() {
-  var m = new Float64x2(0.5, -99.0);
-  var n = new Float64x2(-1.0, -1.0);
-  var o = m.max(n);
-  Expect.equals(0.5, o.x);
-  Expect.equals(-1.0, o.y);
-}
-
-testSqrt() {
-  var m = new Float64x2(9.0, 16.0);
-  var o = m.sqrt();
-  Expect.equals(3.0, o.x);
-  Expect.equals(4.0, o.y);
-}
-
-testTypedList() {
-  var m = new Float64x2List(2);
-  var n = m[0];
-  Expect.equals(0.0, n.x);
-  Expect.equals(0.0, n.y);
-  n = n.withX(1.0);
-  n = n.withY(2.0);
-  m[0] = n;
-  n = n.withX(99.0);
-  Expect.equals(99.0, n.x);
-  Expect.equals(1.0, m[0].x);
-  Expect.equals(2.0, m[0].y);
-}
-
-testTypedListFromList() {
-  var l = [new Float64x2(1.0, 2.0), new Float64x2(3.0, 4.0)];
-  var m = new Float64x2List.fromList(l);
-  Expect.equals(2, m.length);
-  Expect.equals(16, m.elementSizeInBytes);
-  Expect.equals(32, m.lengthInBytes);
-  Expect.equals(1.0, m[0].x);
-  Expect.equals(2.0, m[0].y);
-  Expect.equals(3.0, m[1].x);
-  Expect.equals(4.0, m[1].y);
-}
-
-testTypedListFromTypedList() {
-  var l = new Float64x2List(2);
-  l[0] = new Float64x2(1.0, 2.0);
-  l[1] = new Float64x2(3.0, 4.0);
-  Expect.equals(2, l.length);
-  Expect.equals(16, l.elementSizeInBytes);
-  Expect.equals(32, l.lengthInBytes);
-  Expect.equals(1.0, l[0].x);
-  Expect.equals(2.0, l[0].y);
-  Expect.equals(3.0, l[1].x);
-  Expect.equals(4.0, l[1].y);
-  var m = new Float64x2List.fromList(l);
-  Expect.equals(2, m.length);
-  Expect.equals(16, m.elementSizeInBytes);
-  Expect.equals(32, m.lengthInBytes);
-  Expect.equals(2, m.length);
-  Expect.equals(1.0, m[0].x);
-  Expect.equals(2.0, m[0].y);
-  Expect.equals(3.0, m[1].x);
-  Expect.equals(4.0, m[1].y);
-}
-
-testTypedListView() {
-  var l = [1.0, 2.0, 3.0, 4.0];
-  Expect.equals(4, l.length);
-  var fl = new Float64List.fromList(l);
-  Expect.equals(4, fl.length);
-  var m = new Float64x2List.view(fl.buffer);
-  Expect.equals(2, m.length);
-  Expect.equals(1.0, m[0].x);
-  Expect.equals(2.0, m[0].y);
-  Expect.equals(3.0, m[1].x);
-  Expect.equals(4.0, m[1].y);
-}
-
-testTypedListFullView() {
-  var l = [new Float64x2(1.0, 2.0), new Float64x2(3.0, 4.0)];
-  var m = new Float64x2List.fromList(l);
-  Expect.equals(2, m.length);
-  Expect.equals(1.0, m[0].x);
-  Expect.equals(2.0, m[0].y);
-  Expect.equals(3.0, m[1].x);
-  Expect.equals(4.0, m[1].y);
-  // Create a view which spans the entire buffer.
-  var n = new Float64x2List.view(m.buffer);
-  Expect.equals(2, n.length);
-  Expect.equals(1.0, n[0].x);
-  Expect.equals(2.0, n[0].y);
-  Expect.equals(3.0, n[1].x);
-  Expect.equals(4.0, n[1].y);
-  // Create a view which spans the entire buffer by specifying length.
-  var o = new Float64x2List.view(m.buffer, 0, 2);
-  Expect.equals(2, o.length);
-  Expect.equals(1.0, o[0].x);
-  Expect.equals(2.0, o[0].y);
-  Expect.equals(3.0, o[1].x);
-  Expect.equals(4.0, o[1].y);
-}
-
-testSubList() {
-  var l = [new Float64x2(1.0, 2.0), new Float64x2(3.0, 4.0)];
-  var m = new Float64x2List.fromList(l);
-  var n = m.sublist(0, 1);
-  Expect.equals(1, n.length);
-  Expect.equals(1.0, n[0].x);
-  Expect.equals(2.0, n[0].y);
-  var o = m.sublist(1, 2);
-  Expect.equals(1, o.length);
-  Expect.equals(3.0, o[0].x);
-  Expect.equals(4.0, o[0].y);
-}
-
-testSubView() {
-  var l = [new Float64x2(1.0, 2.0), new Float64x2(3.0, 4.0)];
-  var m = new Float64x2List.fromList(l);
-  var n = new Float64x2List.view(m.buffer, 16, 1);
-  Expect.equals(1, n.length);
-  Expect.equals(16, n.offsetInBytes);
-  Expect.equals(16, n.lengthInBytes);
-  Expect.equals(3.0, n[0].x);
-  Expect.equals(4.0, n[0].y);
-  var o = new Float64x2List.view(m.buffer, 0, 1);
-  Expect.equals(1, o.length);
-  Expect.equals(0, o.offsetInBytes);
-  Expect.equals(16, o.lengthInBytes);
-  Expect.equals(1.0, o[0].x);
-  Expect.equals(2.0, o[0].y);
-}
-
-main() {
-  for (int i = 0; i < 20; i++) {
-    testConstructor();
-    testCastConstructor();
-    testLaneSetter();
-    testNegate();
-    testAdd();
-    testSub();
-    testMul();
-    testDiv();
-    testScale();
-    testAbs();
-    testClamp();
-    testSignMask();
-    testMin();
-    testMax();
-    testSqrt();
-    testTypedList();
-    testTypedListFromList();
-    testTypedListFromTypedList();
-    testTypedListView();
-    testTypedListFullView();
-    testSubList();
-    testSubView();
-  }
-}
diff --git a/tests/lib_2/typed_data/float64x2_typed_list_test.dart b/tests/lib_2/typed_data/float64x2_typed_list_test.dart
deleted file mode 100644
index 53fef98e673..00000000000
--- a/tests/lib_2/typed_data/float64x2_typed_list_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--max_deoptimization_counter_threshold=1000 --optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-library float64x2_typed_list_test;
-
-import 'dart:typed_data';
-
-void test(Float64x2List l) {
-  var a = l[0];
-  var b = l[1];
-  l[0] = b;
-  l[1] = a;
-}
-
-bool compare(a, b) {
-  return (a.x == b.x) && (a.y == b.y);
-}
-
-main() {
-  var l = new Float64x2List(2);
-  var a = new Float64x2(1.0, 2.0);
-  var b = new Float64x2(3.0, 4.0);
-  l[0] = a;
-  l[1] = b;
-  for (var i = 0; i < 41; i++) {
-    test(l);
-  }
-  if (!compare(l[0], b) || !compare(l[1], a)) {
-    throw 123;
-  }
-}
diff --git a/tests/lib_2/typed_data/int32x4_arithmetic_test.dart b/tests/lib_2/typed_data/int32x4_arithmetic_test.dart
deleted file mode 100644
index 15cedd8c816..00000000000
--- a/tests/lib_2/typed_data/int32x4_arithmetic_test.dart
+++ /dev/null
@@ -1,127 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--max_deoptimization_counter_threshold=1000 --optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-// Library tag to be able to run in html test framework.
-library uint32x4_arithmetic_test;
-
-import 'dart:typed_data';
-import "package:expect/expect.dart";
-
-testAdd() {
-  var m = new Int32x4(0, 0, 0, 0);
-  var n = new Int32x4(-1, -1, -1, -1);
-  var o = m + n;
-  Expect.equals(-1, o.x);
-  Expect.equals(-1, o.y);
-  Expect.equals(-1, o.z);
-  Expect.equals(-1, o.w);
-
-  m = new Int32x4(0, 0, 0, 0);
-  n = new Int32x4(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF);
-  o = m + n;
-  Expect.equals(-1, o.x);
-  Expect.equals(-1, o.y);
-  Expect.equals(-1, o.z);
-  Expect.equals(-1, o.w);
-
-  n = new Int32x4(1, 1, 1, 1);
-  m = new Int32x4(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF);
-  o = m + n;
-  Expect.equals(0, o.x);
-  Expect.equals(0, o.y);
-  Expect.equals(0, o.z);
-  Expect.equals(0, o.w);
-
-  n = new Int32x4(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF);
-  m = new Int32x4(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF);
-  o = m + n;
-  Expect.equals(-2, o.x);
-  Expect.equals(-2, o.y);
-  Expect.equals(-2, o.z);
-  Expect.equals(-2, o.w);
-
-  n = new Int32x4(1, 0, 0, 0);
-  m = new Int32x4(2, 0, 0, 0);
-  o = n + m;
-  Expect.equals(3, o.x);
-  Expect.equals(0, o.y);
-  Expect.equals(0, o.z);
-  Expect.equals(0, o.w);
-
-  n = new Int32x4(1, 3, 0, 0);
-  m = new Int32x4(2, 4, 0, 0);
-  o = n + m;
-  Expect.equals(3, o.x);
-  Expect.equals(7, o.y);
-  Expect.equals(0, o.z);
-  Expect.equals(0, o.w);
-
-  n = new Int32x4(1, 3, 5, 0);
-  m = new Int32x4(2, 4, 6, 0);
-  o = n + m;
-  Expect.equals(3, o.x);
-  Expect.equals(7, o.y);
-  Expect.equals(11, o.z);
-  Expect.equals(0, o.w);
-
-  n = new Int32x4(1, 3, 5, 7);
-  m = new Int32x4(-2, -4, -6, -8);
-  o = n + m;
-  Expect.equals(-1, o.x);
-  Expect.equals(-1, o.y);
-  Expect.equals(-1, o.z);
-  Expect.equals(-1, o.w);
-}
-
-testSub() {
-  var m = new Int32x4(0, 0, 0, 0);
-  var n = new Int32x4(1, 1, 1, 1);
-  var o = m - n;
-  Expect.equals(-1, o.x);
-  Expect.equals(-1, o.y);
-  Expect.equals(-1, o.z);
-  Expect.equals(-1, o.w);
-
-  o = n - m;
-  Expect.equals(1, o.x);
-  Expect.equals(1, o.y);
-  Expect.equals(1, o.z);
-  Expect.equals(1, o.w);
-}
-
-const int53 = 0x20000000000000; // 2^53.
-final usingJavaScriptNumbers = (int53 + 1) == int53;
-
-testTruncation() {
-  // Check that various bits from bit 32 and up are masked away.
-  var base = usingJavaScriptNumbers ? 0x1BCCDD00000000 : 0xAABBCCDD00000000;
-  var x1 = new Int32x4(base + 1, 0, 0, 0);
-  Expect.equals(1, x1.x);
-
-  // Check that all even bits up to bit 30 are preserved.
-  var x2 = new Int32x4(base + 0x55555555, 0, 0, 0);
-  Expect.equals(0x55555555, x2.x);
-
-  // Check that the odd bits up to bit 31 are preserved, and that
-  // bit 31 is treated as a sign bit.
-  var x3 = new Int32x4(base + 0xAAAAAAAA, 0, 0, 0);
-  const signExtended = -1431655766; // 0xFFFFFFFFAAAAAAAA or 0x3FFFFFAAAAAAAA.
-  Expect.equals(signExtended, x3.x);
-
-  // Check that all bits from bit 32 and up are masked away.
-  var highBase = 0xFFFFFFFF10000000;
-  var x4 = new Int32x4(highBase, 0, 0, 0);
-  Expect.equals(0x10000000, x4.x);
-}
-
-main() {
-  for (int i = 0; i < 20; i++) {
-    testAdd();
-    testSub();
-    testTruncation();
-  }
-}
diff --git a/tests/lib_2/typed_data/int32x4_list_test.dart b/tests/lib_2/typed_data/int32x4_list_test.dart
deleted file mode 100644
index 2a1badc372f..00000000000
--- a/tests/lib_2/typed_data/int32x4_list_test.dart
+++ /dev/null
@@ -1,218 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--max_deoptimization_counter_threshold=1000 --optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-// Library tag to be able to run in html test framework.
-library int32x4_list_test;
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-testLoadStore(array) {
-  Expect.equals(8, array.length);
-  Expect.isTrue(array is List<Int32x4>);
-  array[0] = new Int32x4(1, 2, 3, 4);
-  Expect.equals(1, array[0].x);
-  Expect.equals(2, array[0].y);
-  Expect.equals(3, array[0].z);
-  Expect.equals(4, array[0].w);
-  array[1] = array[0];
-  array[0] = array[0].withX(9);
-  Expect.equals(9, array[0].x);
-  Expect.equals(2, array[0].y);
-  Expect.equals(3, array[0].z);
-  Expect.equals(4, array[0].w);
-  Expect.equals(1, array[1].x);
-  Expect.equals(2, array[1].y);
-  Expect.equals(3, array[1].z);
-  Expect.equals(4, array[1].w);
-}
-
-testLoadStoreDeopt(array, index, value) {
-  array[index] = value;
-  Expect.equals(value.x, array[index].x);
-  Expect.equals(value.y, array[index].y);
-  Expect.equals(value.z, array[index].z);
-  Expect.equals(value.w, array[index].w);
-}
-
-testLoadStoreDeoptDriver() {
-  Int32x4List list = new Int32x4List(4);
-  Int32x4 value = new Int32x4(1, 2, 3, 4);
-  for (int i = 0; i < 20; i++) {
-    testLoadStoreDeopt(list, 0, value);
-  }
-  try {
-    // Invalid index.
-    testLoadStoreDeopt(list, 5, value);
-  } catch (_) {}
-  for (int i = 0; i < 20; i++) {
-    testLoadStoreDeopt(list, 0, value);
-  }
-  try {
-    // null list.
-    testLoadStoreDeopt(null, 0, value);
-  } catch (_) {}
-  for (int i = 0; i < 20; i++) {
-    testLoadStoreDeopt(list, 0, value);
-  }
-  try {
-    // null value.
-    testLoadStoreDeopt(list, 0, null);
-  } catch (_) {}
-  for (int i = 0; i < 20; i++) {
-    testLoadStoreDeopt(list, 0, value);
-  }
-  try {
-    // non-smi index.
-    testLoadStoreDeopt(list, 3.14159, value);
-  } catch (_) {}
-  for (int i = 0; i < 20; i++) {
-    testLoadStoreDeopt(list, 0, value);
-  }
-  try {
-    // non-Int32x4 value.
-    testLoadStoreDeopt(list, 0, 4.toDouble());
-  } catch (_) {}
-  for (int i = 0; i < 20; i++) {
-    testLoadStoreDeopt(list, 0, value);
-  }
-  try {
-    // non-Int32x4List list.
-    testLoadStoreDeopt([new Int32x4(2, 3, 4, 5)], 0, value);
-  } catch (_) {}
-  for (int i = 0; i < 20; i++) {
-    testLoadStoreDeopt(list, 0, value);
-  }
-}
-
-testListZero() {
-  Int32x4List list = new Int32x4List(1);
-  Expect.equals(0, list[0].x);
-  Expect.equals(0, list[0].y);
-  Expect.equals(0, list[0].z);
-  Expect.equals(0, list[0].w);
-}
-
-testView(array) {
-  Expect.equals(8, array.length);
-  Expect.isTrue(array is List<Int32x4>);
-  Expect.equals(0, array[0].x);
-  Expect.equals(1, array[0].y);
-  Expect.equals(2, array[0].z);
-  Expect.equals(3, array[0].w);
-  Expect.equals(4, array[1].x);
-  Expect.equals(5, array[1].y);
-  Expect.equals(6, array[1].z);
-  Expect.equals(7, array[1].w);
-}
-
-testSublist(array) {
-  Expect.equals(8, array.length);
-  Expect.isTrue(array is Int32x4List);
-  var a = array.sublist(0, 1);
-  Expect.equals(1, a.length);
-  Expect.equals(0, a[0].x);
-  Expect.equals(1, a[0].y);
-  Expect.equals(2, a[0].z);
-  Expect.equals(3, a[0].w);
-  a = array.sublist(1, 2);
-  Expect.equals(4, a[0].x);
-  Expect.equals(5, a[0].y);
-  Expect.equals(6, a[0].z);
-  Expect.equals(7, a[0].w);
-  a = array.sublist(0);
-  Expect.equals(a.length, array.length);
-  for (int i = 0; i < array.length; i++) {
-    Expect.equals(array[i].x, a[i].x);
-    Expect.equals(array[i].y, a[i].y);
-    Expect.equals(array[i].z, a[i].z);
-    Expect.equals(array[i].w, a[i].w);
-  }
-}
-
-void testSpecialValues(array) {
-  var tests = [
-    [0x8901234567890, 0x34567890],
-    [0x89012A4567890, -1537836912],
-    [0x80000000, -2147483648],
-    [-0x80000000, -2147483648],
-    [0x7fffffff, 2147483647],
-    [-0x7fffffff, -2147483647],
-  ];
-  var int32x4;
-
-  for (var test in tests) {
-    var input = test[0];
-    var expected = test[1];
-
-    int32x4 = new Int32x4(input, 2, 3, 4);
-    array[0] = int32x4;
-    int32x4 = array[0];
-    Expect.equals(expected, int32x4.x);
-    Expect.equals(2, int32x4.y);
-    Expect.equals(3, int32x4.z);
-    Expect.equals(4, int32x4.w);
-
-    int32x4 = new Int32x4(1, input, 3, 4);
-    array[0] = int32x4;
-    int32x4 = array[0];
-    Expect.equals(1, int32x4.x);
-    Expect.equals(expected, int32x4.y);
-    Expect.equals(3, int32x4.z);
-    Expect.equals(4, int32x4.w);
-
-    int32x4 = new Int32x4(1, 2, input, 4);
-    array[0] = int32x4;
-    int32x4 = array[0];
-    Expect.equals(1, int32x4.x);
-    Expect.equals(2, int32x4.y);
-    Expect.equals(expected, int32x4.z);
-    Expect.equals(4, int32x4.w);
-
-    int32x4 = new Int32x4(1, 2, 3, input);
-    array[0] = int32x4;
-    int32x4 = array[0];
-    Expect.equals(1, int32x4.x);
-    Expect.equals(2, int32x4.y);
-    Expect.equals(3, int32x4.z);
-    Expect.equals(expected, int32x4.w);
-  }
-}
-
-main() {
-  var list;
-
-  list = new Int32x4List(8);
-  for (int i = 0; i < 20; i++) {
-    testLoadStore(list);
-  }
-  for (int i = 0; i < 20; i++) {
-    testSpecialValues(list);
-  }
-
-  Uint32List uint32List = new Uint32List(32);
-  for (int i = 0; i < uint32List.length; i++) {
-    uint32List[i] = i;
-  }
-  list = new Int32x4List.view(uint32List.buffer);
-  for (int i = 0; i < 20; i++) {
-    testView(list);
-  }
-  for (int i = 0; i < 20; i++) {
-    testSublist(list);
-  }
-  for (int i = 0; i < 20; i++) {
-    testLoadStore(list);
-  }
-  for (int i = 0; i < 20; i++) {
-    testListZero();
-  }
-  for (int i = 0; i < 20; i++) {
-    testSpecialValues(list);
-  }
-  testLoadStoreDeoptDriver();
-}
diff --git a/tests/lib_2/typed_data/int32x4_shuffle_test.dart b/tests/lib_2/typed_data/int32x4_shuffle_test.dart
deleted file mode 100644
index 15ecdef05da..00000000000
--- a/tests/lib_2/typed_data/int32x4_shuffle_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-// Library tag to be able to run in html test framework.
-library uint32x4_shuffle_test;
-
-import 'dart:typed_data';
-import "package:expect/expect.dart";
-
-void testShuffle() {
-  var m = new Int32x4(1, 2, 3, 4);
-  var c;
-  c = m.shuffle(Int32x4.wzyx);
-  Expect.equals(4, c.x);
-  Expect.equals(3, c.y);
-  Expect.equals(2, c.z);
-  Expect.equals(1, c.w);
-}
-
-void testShuffleNonConstant(mask) {
-  var m = new Int32x4(1, 2, 3, 4);
-  var c;
-  c = m.shuffle(mask);
-  if (mask == 1) {
-    Expect.equals(2, c.x);
-    Expect.equals(1, c.y);
-    Expect.equals(1, c.z);
-    Expect.equals(1, c.w);
-  } else {
-    Expect.equals(Int32x4.yyyy + 1, mask);
-    Expect.equals(3, c.x);
-    Expect.equals(2, c.y);
-    Expect.equals(2, c.z);
-    Expect.equals(2, c.w);
-  }
-}
-
-void testShuffleMix() {
-  var m = new Int32x4(1, 2, 3, 4);
-  var n = new Int32x4(5, 6, 7, 8);
-  var c = m.shuffleMix(n, Int32x4.xyxy);
-  Expect.equals(1, c.x);
-  Expect.equals(2, c.y);
-  Expect.equals(5, c.z);
-  Expect.equals(6, c.w);
-}
-
-main() {
-  var xxxx = Int32x4.xxxx + 1;
-  var yyyy = Int32x4.yyyy + 1;
-  for (int i = 0; i < 20; i++) {
-    testShuffle();
-    testShuffleNonConstant(xxxx);
-    testShuffleNonConstant(yyyy);
-    testShuffleMix();
-  }
-}
diff --git a/tests/lib_2/typed_data/int32x4_sign_mask_test.dart b/tests/lib_2/typed_data/int32x4_sign_mask_test.dart
deleted file mode 100644
index 03ae84d352c..00000000000
--- a/tests/lib_2/typed_data/int32x4_sign_mask_test.dart
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-// Library tag to be able to run in html test framework.
-library int32x4_sign_mask;
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-void testImmediates() {
-  var f = new Int32x4(1, 2, 3, 4);
-  var m = f.signMask;
-  Expect.equals(0x0, m);
-  f = new Int32x4(-1, -2, -3, -4);
-  m = f.signMask;
-  Expect.equals(0xf, m);
-  f = new Int32x4.bool(true, false, false, false);
-  m = f.signMask;
-  Expect.equals(0x1, m);
-  f = new Int32x4.bool(false, true, false, false);
-  m = f.signMask;
-  Expect.equals(0x2, m);
-  f = new Int32x4.bool(false, false, true, false);
-  m = f.signMask;
-  Expect.equals(0x4, m);
-  f = new Int32x4.bool(false, false, false, true);
-  m = f.signMask;
-  Expect.equals(0x8, m);
-}
-
-void testZero() {
-  var f = new Int32x4(0, 0, 0, 0);
-  var m = f.signMask;
-  Expect.equals(0x0, m);
-  f = new Int32x4(-0, -0, -0, -0);
-  m = f.signMask;
-  Expect.equals(0x0, m);
-}
-
-void testLogic() {
-  var a = new Int32x4(0x80000000, 0x80000000, 0x80000000, 0x80000000);
-  var b = new Int32x4(0x70000000, 0x70000000, 0x70000000, 0x70000000);
-  var c = new Int32x4(0xf0000000, 0xf0000000, 0xf0000000, 0xf0000000);
-  var m1 = (a & c).signMask;
-  Expect.equals(0xf, m1);
-  var m2 = (a & b).signMask;
-  Expect.equals(0x0, m2);
-  var m3 = (b ^ a).signMask;
-  Expect.equals(0xf, m3);
-  var m4 = (b | c).signMask;
-  Expect.equals(0xf, m4);
-}
-
-main() {
-  for (int i = 0; i < 2000; i++) {
-    testImmediates();
-    testZero();
-    testLogic();
-  }
-}
diff --git a/tests/lib_2/typed_data/int32x4_static_test.dart b/tests/lib_2/typed_data/int32x4_static_test.dart
deleted file mode 100644
index 3add57ef5ec..00000000000
--- a/tests/lib_2/typed_data/int32x4_static_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library int32x4_static_test;
-
-import 'dart:typed_data';
-
-main() {
-  var str = "foo";
-  new Int32x4(str, 2, 3, 4); //# 01: compile-time error
-
-  var d = 0.5;
-  new Int32x4(d, 2, 3, 4); //# 02: compile-time error
-}
diff --git a/tests/lib_2/typed_data/int32x4_test.dart b/tests/lib_2/typed_data/int32x4_test.dart
deleted file mode 100644
index 73fb364d439..00000000000
--- a/tests/lib_2/typed_data/int32x4_test.dart
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--max_deoptimization_counter_threshold=1000 --optimization-counter-threshold=10 --no-background-compilation
-// VMOptions=--no-intrinsify
-
-// @dart = 2.9
-
-library int32x4_test;
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-void testBadArguments() {
-  Expect.throwsArgumentError(() => new Int32x4(null, 2, 3, 4));
-  Expect.throwsArgumentError(() => new Int32x4(1, null, 3, 4));
-  Expect.throwsArgumentError(() => new Int32x4(1, 2, null, 4));
-  Expect.throwsArgumentError(() => new Int32x4(1, 2, 3, null));
-
-  bool isArgumentOrTypeError(e) => e is ArgumentError || e is TypeError;
-
-  // Use a local variable typed as dynamic to avoid static warnings.
-  dynamic str = "foo";
-  Expect.throws(() => new Int32x4(str, 2, 3, 4), isArgumentOrTypeError);
-  Expect.throws(() => new Int32x4(1, str, 3, 4), isArgumentOrTypeError);
-  Expect.throws(() => new Int32x4(1, 2, str, 4), isArgumentOrTypeError);
-  Expect.throws(() => new Int32x4(1, 2, 3, str), isArgumentOrTypeError);
-  // Use a local variable typed as dynamic to avoid static warnings.
-  dynamic d = 0.5;
-  Expect.throws(() => new Int32x4(d, 2, 3, 4), isArgumentOrTypeError);
-  Expect.throws(() => new Int32x4(1, d, 3, 4), isArgumentOrTypeError);
-  Expect.throws(() => new Int32x4(1, 2, d, 4), isArgumentOrTypeError);
-  Expect.throws(() => new Int32x4(1, 2, 3, d), isArgumentOrTypeError);
-}
-
-void testBigArguments() {
-  var tests = [
-    [0x8901234567890, 0x34567890],
-    [0x89012A4567890, -1537836912],
-    [0x80000000, -2147483648],
-    [-0x80000000, -2147483648],
-    [0x7fffffff, 2147483647],
-    [-0x7fffffff, -2147483647],
-  ];
-  var int32x4;
-
-  for (var test in tests) {
-    var input = test[0];
-    var expected = test[1];
-
-    int32x4 = new Int32x4(input, 2, 3, 4);
-    Expect.equals(expected, int32x4.x);
-    Expect.equals(2, int32x4.y);
-    Expect.equals(3, int32x4.z);
-    Expect.equals(4, int32x4.w);
-
-    int32x4 = new Int32x4(1, input, 3, 4);
-    Expect.equals(1, int32x4.x);
-    Expect.equals(expected, int32x4.y);
-    Expect.equals(3, int32x4.z);
-    Expect.equals(4, int32x4.w);
-
-    int32x4 = new Int32x4(1, 2, input, 4);
-    Expect.equals(1, int32x4.x);
-    Expect.equals(2, int32x4.y);
-    Expect.equals(expected, int32x4.z);
-    Expect.equals(4, int32x4.w);
-
-    int32x4 = new Int32x4(1, 2, 3, input);
-    Expect.equals(1, int32x4.x);
-    Expect.equals(2, int32x4.y);
-    Expect.equals(3, int32x4.z);
-    Expect.equals(expected, int32x4.w);
-  }
-}
-
-main() {
-  for (int i = 0; i < 20; i++) {
-    testBigArguments();
-    testBadArguments();
-  }
-}
diff --git a/tests/lib_2/typed_data/int64_list_load_store_test.dart b/tests/lib_2/typed_data/int64_list_load_store_test.dart
deleted file mode 100644
index 1834fccf919..00000000000
--- a/tests/lib_2/typed_data/int64_list_load_store_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-// Test that the compiler's load elimination phase sees interfering writes to
-// the array's buffer.
-
-import "dart:typed_data";
-import 'package:expect/expect.dart';
-
-void testStoreLoad(l, z) {
-  l[0] = 9223372036854775807;
-  l[1] = 9223372036854775806;
-  l[2] = l[0];
-  l[3] = z;
-  Expect.equals(l[0], 9223372036854775807);
-  Expect.equals(l[1], 9223372036854775806);
-  Expect.isTrue(l[1] < l[0]);
-  Expect.equals(l[2], l[0]);
-  Expect.equals(l[3], z);
-}
-
-main() {
-  var l = new Int64List(4);
-  var zGood = 9223372036854775807;
-  var zBad = false;
-  for (var i = 0; i < 40; i++) {
-    testStoreLoad(l, zGood);
-  }
-  // Deopt.
-  try {
-    testStoreLoad(l, zBad);
-  } catch (_) {}
-  for (var i = 0; i < 40; i++) {
-    testStoreLoad(l, zGood);
-  }
-}
diff --git a/tests/lib_2/typed_data/native_interceptor_no_own_method_to_intercept_test.dart b/tests/lib_2/typed_data/native_interceptor_no_own_method_to_intercept_test.dart
deleted file mode 100644
index 09178b0afa8..00000000000
--- a/tests/lib_2/typed_data/native_interceptor_no_own_method_to_intercept_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-import 'dart:typed_data';
-
-@pragma('dart2js:noInline')
-use(s) => s;
-
-main() {
-  // In dart2js ByteData should have an interceptor so that it doesn't end up
-  // as an unknown JS object.
-  // This test is just to make sure that dart2js doesn't crash.
-  use(new ByteData(1).toString());
-}
diff --git a/tests/lib_2/typed_data/polymorphic_unmodifiable_typed_data_test.dart b/tests/lib_2/typed_data/polymorphic_unmodifiable_typed_data_test.dart
deleted file mode 100644
index a0cf893558f..00000000000
--- a/tests/lib_2/typed_data/polymorphic_unmodifiable_typed_data_test.dart
+++ /dev/null
@@ -1,614 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--inline_alloc
-// VMOptions=--no_inline_alloc
-
-import "dart:typed_data";
-import "package:expect/expect.dart";
-
-const bool supportsInt64 = bool.fromEnvironment("dart.isVM");
-const int kListSize = 100;
-const int kLoopSize = 1000;
-
-@pragma("vm:never-inline")
-readUint8(Uint8List list) {
-  for (int i = 0; i < list.length; i++) {
-    Expect.equals(0, list[i]);
-  }
-}
-
-@pragma("vm:never-inline")
-writeUint8(Uint8List list) {
-  for (int i = 0; i < list.length; i++) {
-    list[i] = 1;
-  }
-}
-
-testUint8() {
-  var internal = new Uint8List(kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readUint8(internal);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeUint8(internal);
-  }
-
-  var view = new Uint8List.view(new Uint8List(kListSize).buffer, 0, kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readUint8(view);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeUint8(view);
-  }
-
-  var unmodifiable = new UnmodifiableUint8ListView(new Uint8List(kListSize));
-  for (var i = 0; i < kLoopSize; i++) {
-    readUint8(unmodifiable);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    Expect.throwsUnsupportedError(() => writeUint8(unmodifiable));
-  }
-}
-
-@pragma("vm:never-inline")
-readInt8(Int8List list) {
-  for (int i = 0; i < list.length; i++) {
-    Expect.equals(0, list[i]);
-  }
-}
-
-@pragma("vm:never-inline")
-writeInt8(Int8List list) {
-  for (int i = 0; i < list.length; i++) {
-    list[i] = 1;
-  }
-}
-
-testInt8() {
-  var internal = new Int8List(kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readInt8(internal);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeInt8(internal);
-  }
-
-  var view = new Int8List.view(new Int8List(kListSize).buffer, 0, kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readInt8(view);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeInt8(view);
-  }
-
-  var unmodifiable = new UnmodifiableInt8ListView(new Int8List(kListSize));
-  for (var i = 0; i < kLoopSize; i++) {
-    readInt8(unmodifiable);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    Expect.throwsUnsupportedError(() => writeInt8(unmodifiable));
-  }
-}
-
-@pragma("vm:never-inline")
-readUint16(Uint16List list) {
-  for (int i = 0; i < list.length; i++) {
-    Expect.equals(0, list[i]);
-  }
-}
-
-@pragma("vm:never-inline")
-writeUint16(Uint16List list) {
-  for (int i = 0; i < list.length; i++) {
-    list[i] = 1;
-  }
-}
-
-testUint16() {
-  var internal = new Uint16List(kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readUint16(internal);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeUint16(internal);
-  }
-
-  var view =
-      new Uint16List.view(new Uint16List(kListSize).buffer, 0, kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readUint16(view);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeUint16(view);
-  }
-
-  var unmodifiable = new UnmodifiableUint16ListView(new Uint16List(kListSize));
-  for (var i = 0; i < kLoopSize; i++) {
-    readUint16(unmodifiable);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    Expect.throwsUnsupportedError(() => writeUint16(unmodifiable));
-  }
-}
-
-@pragma("vm:never-inline")
-readInt16(Int16List list) {
-  for (int i = 0; i < list.length; i++) {
-    Expect.equals(0, list[i]);
-  }
-}
-
-@pragma("vm:never-inline")
-writeInt16(Int16List list) {
-  for (int i = 0; i < list.length; i++) {
-    list[i] = 1;
-  }
-}
-
-testInt16() {
-  var internal = new Int16List(kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readInt16(internal);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeInt16(internal);
-  }
-
-  var view = new Int16List.view(new Int16List(kListSize).buffer, 0, kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readInt16(view);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeInt16(view);
-  }
-
-  var unmodifiable = new UnmodifiableInt16ListView(new Int16List(kListSize));
-  for (var i = 0; i < kLoopSize; i++) {
-    readInt16(unmodifiable);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    Expect.throwsUnsupportedError(() => writeInt16(unmodifiable));
-  }
-}
-
-@pragma("vm:never-inline")
-readUint32(Uint32List list) {
-  for (int i = 0; i < list.length; i++) {
-    Expect.equals(0, list[i]);
-  }
-}
-
-@pragma("vm:never-inline")
-writeUint32(Uint32List list) {
-  for (int i = 0; i < list.length; i++) {
-    list[i] = 1;
-  }
-}
-
-testUint32() {
-  var internal = new Uint32List(kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readUint32(internal);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeUint32(internal);
-  }
-
-  var view =
-      new Uint32List.view(new Uint32List(kListSize).buffer, 0, kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readUint32(view);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeUint32(view);
-  }
-
-  var unmodifiable = new UnmodifiableUint32ListView(new Uint32List(kListSize));
-  for (var i = 0; i < kLoopSize; i++) {
-    readUint32(unmodifiable);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    Expect.throwsUnsupportedError(() => writeUint32(unmodifiable));
-  }
-}
-
-@pragma("vm:never-inline")
-readInt32(Int32List list) {
-  for (int i = 0; i < list.length; i++) {
-    Expect.equals(0, list[i]);
-  }
-}
-
-@pragma("vm:never-inline")
-writeInt32(Int32List list) {
-  for (int i = 0; i < list.length; i++) {
-    list[i] = 1;
-  }
-}
-
-testInt32() {
-  var internal = new Int32List(kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readInt32(internal);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeInt32(internal);
-  }
-
-  var view = new Int32List.view(new Int32List(kListSize).buffer, 0, kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readInt32(view);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeInt32(view);
-  }
-
-  var unmodifiable = new UnmodifiableInt32ListView(new Int32List(kListSize));
-  for (var i = 0; i < kLoopSize; i++) {
-    readInt32(unmodifiable);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    Expect.throwsUnsupportedError(() => writeInt32(unmodifiable));
-  }
-}
-
-@pragma("vm:never-inline")
-readUint64(Uint64List list) {
-  for (int i = 0; i < list.length; i++) {
-    Expect.equals(0, list[i]);
-  }
-}
-
-@pragma("vm:never-inline")
-writeUint64(Uint64List list) {
-  for (int i = 0; i < list.length; i++) {
-    list[i] = 1;
-  }
-}
-
-testUint64() {
-  var internal = new Uint64List(kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readUint64(internal);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeUint64(internal);
-  }
-
-  var view =
-      new Uint64List.view(new Uint64List(kListSize).buffer, 0, kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readUint64(view);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeUint64(view);
-  }
-
-  var unmodifiable = new UnmodifiableUint64ListView(new Uint64List(kListSize));
-  for (var i = 0; i < kLoopSize; i++) {
-    readUint64(unmodifiable);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    Expect.throwsUnsupportedError(() => writeUint64(unmodifiable));
-  }
-}
-
-@pragma("vm:never-inline")
-readInt64(Int64List list) {
-  for (int i = 0; i < list.length; i++) {
-    Expect.equals(0, list[i]);
-  }
-}
-
-@pragma("vm:never-inline")
-writeInt64(Int64List list) {
-  for (int i = 0; i < list.length; i++) {
-    list[i] = 1;
-  }
-}
-
-testInt64() {
-  var internal = new Int64List(kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readInt64(internal);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeInt64(internal);
-  }
-
-  var view = new Int64List.view(new Int64List(kListSize).buffer, 0, kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readInt64(view);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeInt64(view);
-  }
-
-  var unmodifiable = new UnmodifiableInt64ListView(new Int64List(kListSize));
-  for (var i = 0; i < kLoopSize; i++) {
-    readInt64(unmodifiable);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    Expect.throwsUnsupportedError(() => writeInt64(unmodifiable));
-  }
-}
-
-@pragma("vm:never-inline")
-readFloat32(Float32List list) {
-  for (int i = 0; i < list.length; i++) {
-    Expect.equals(0.0, list[i]);
-  }
-}
-
-@pragma("vm:never-inline")
-writeFloat32(Float32List list) {
-  for (int i = 0; i < list.length; i++) {
-    list[i] = 1.0;
-  }
-}
-
-testFloat32() {
-  var internal = new Float32List(kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readFloat32(internal);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeFloat32(internal);
-  }
-
-  var view =
-      new Float32List.view(new Float32List(kListSize).buffer, 0, kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readFloat32(view);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeFloat32(view);
-  }
-
-  var unmodifiable =
-      new UnmodifiableFloat32ListView(new Float32List(kListSize));
-  for (var i = 0; i < kLoopSize; i++) {
-    readFloat32(unmodifiable);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    Expect.throwsUnsupportedError(() => writeFloat32(unmodifiable));
-  }
-}
-
-@pragma("vm:never-inline")
-readFloat64(Float64List list) {
-  for (int i = 0; i < list.length; i++) {
-    Expect.equals(0.0, list[i]);
-  }
-}
-
-@pragma("vm:never-inline")
-writeFloat64(Float64List list) {
-  for (int i = 0; i < list.length; i++) {
-    list[i] = 1.0;
-  }
-}
-
-testFloat64() {
-  var internal = new Float64List(kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readFloat64(internal);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeFloat64(internal);
-  }
-
-  var view =
-      new Float64List.view(new Float64List(kListSize).buffer, 0, kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readFloat64(view);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeFloat64(view);
-  }
-
-  var unmodifiable =
-      new UnmodifiableFloat64ListView(new Float64List(kListSize));
-  for (var i = 0; i < kLoopSize; i++) {
-    readFloat64(unmodifiable);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    Expect.throwsUnsupportedError(() => writeFloat64(unmodifiable));
-  }
-}
-
-@pragma("vm:never-inline")
-readInt32x4(Int32x4List list) {
-  for (int i = 0; i < list.length; i++) {
-    Expect.equals(0, list[i].x);
-    Expect.equals(0, list[i].y);
-    Expect.equals(0, list[i].z);
-    Expect.equals(0, list[i].w);
-  }
-}
-
-@pragma("vm:never-inline")
-writeInt32x4(Int32x4List list) {
-  for (int i = 0; i < list.length; i++) {
-    list[i] = Int32x4(1, 2, 3, 4);
-  }
-}
-
-testInt32x4() {
-  var internal = new Int32x4List(kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readInt32x4(internal);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeInt32x4(internal);
-  }
-
-  var view =
-      new Int32x4List.view(new Int32x4List(kListSize).buffer, 0, kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readInt32x4(view);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeInt32x4(view);
-  }
-
-  var unmodifiable =
-      new UnmodifiableInt32x4ListView(new Int32x4List(kListSize));
-  for (var i = 0; i < kLoopSize; i++) {
-    readInt32x4(unmodifiable);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    Expect.throwsUnsupportedError(() => writeInt32x4(unmodifiable));
-  }
-}
-
-@pragma("vm:never-inline")
-readFloat32x4(Float32x4List list) {
-  for (int i = 0; i < list.length; i++) {
-    Expect.equals(0.0, list[i].x);
-    Expect.equals(0.0, list[i].y);
-    Expect.equals(0.0, list[i].z);
-    Expect.equals(0.0, list[i].w);
-  }
-}
-
-@pragma("vm:never-inline")
-writeFloat32x4(Float32x4List list) {
-  for (int i = 0; i < list.length; i++) {
-    list[i] = Float32x4(1.0, 2.0, 3.0, 4.0);
-  }
-}
-
-testFloat32x4() {
-  var internal = new Float32x4List(kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readFloat32x4(internal);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeFloat32x4(internal);
-  }
-
-  var view =
-      new Float32x4List.view(new Float32x4List(kListSize).buffer, 0, kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readFloat32x4(view);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeFloat32x4(view);
-  }
-
-  var unmodifiable =
-      new UnmodifiableFloat32x4ListView(new Float32x4List(kListSize));
-  for (var i = 0; i < kLoopSize; i++) {
-    readFloat32x4(unmodifiable);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    Expect.throwsUnsupportedError(() => writeFloat32x4(unmodifiable));
-  }
-}
-
-@pragma("vm:never-inline")
-readFloat64x2(Float64x2List list) {
-  for (int i = 0; i < list.length; i++) {
-    Expect.equals(0.0, list[i].x);
-    Expect.equals(0.0, list[i].y);
-  }
-}
-
-@pragma("vm:never-inline")
-writeFloat64x2(Float64x2List list) {
-  for (int i = 0; i < list.length; i++) {
-    list[i] = Float64x2(1.0, 2.0);
-  }
-}
-
-testFloat64x2() {
-  var internal = new Float64x2List(kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readFloat64x2(internal);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeFloat64x2(internal);
-  }
-
-  var view =
-      new Float64x2List.view(new Float64x2List(kListSize).buffer, 0, kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readFloat64x2(view);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeFloat64x2(view);
-  }
-
-  var unmodifiable =
-      new UnmodifiableFloat64x2ListView(new Float64x2List(kListSize));
-  for (var i = 0; i < kLoopSize; i++) {
-    readFloat64x2(unmodifiable);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    Expect.throwsUnsupportedError(() => writeFloat64x2(unmodifiable));
-  }
-}
-
-@pragma("vm:never-inline")
-readByteData(ByteData data) {
-  for (int i = 0; i < data.lengthInBytes; i++) {
-    Expect.equals(0, data.getUint8(i));
-  }
-}
-
-@pragma("vm:never-inline")
-writeByteData(ByteData data) {
-  for (int i = 0; i < data.lengthInBytes; i++) {
-    data.setUint8(i, 1);
-  }
-}
-
-testByteData() {
-  var internal = new ByteData(kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readByteData(internal);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeByteData(internal);
-  }
-
-  var view = new ByteData.view(new ByteData(kListSize).buffer, 0, kListSize);
-  for (var i = 0; i < kLoopSize; i++) {
-    readByteData(view);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    writeByteData(view);
-  }
-
-  var unmodifiable = new UnmodifiableByteDataView(new ByteData(kListSize));
-  for (var i = 0; i < kLoopSize; i++) {
-    readByteData(unmodifiable);
-  }
-  for (var i = 0; i < kLoopSize; i++) {
-    Expect.throwsUnsupportedError(() => writeByteData(unmodifiable));
-  }
-}
-
-main() {
-  testUint8();
-  testInt8();
-  testUint16();
-  testInt16();
-  testUint32();
-  testInt32();
-  if (supportsInt64) {
-    testUint64();
-    testInt64();
-  }
-  testFloat32();
-  testFloat64();
-  testInt32x4();
-  testFloat32x4();
-  testFloat64x2();
-  testByteData();
-}
diff --git a/tests/lib_2/typed_data/restricted_types_error_test.dart b/tests/lib_2/typed_data/restricted_types_error_test.dart
deleted file mode 100644
index 51cffb0af82..00000000000
--- a/tests/lib_2/typed_data/restricted_types_error_test.dart
+++ /dev/null
@@ -1,363 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:typed_data';
-
-abstract class CEByteBuffer extends ByteBuffer {}
-//             ^
-// [cfe] 'ByteBuffer' is restricted and can't be extended or implemented.
-//                                  ^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIByteBuffer implements ByteBuffer {}
-//             ^
-// [cfe] 'ByteBuffer' is restricted and can't be extended or implemented.
-//                                     ^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CMByteBuffer with ByteBuffer {}
-//             ^
-// [cfe] 'ByteBuffer' is restricted and can't be extended or implemented.
-//                               ^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CETypedData extends TypedData {}
-//             ^
-// [cfe] 'TypedData' is restricted and can't be extended or implemented.
-//                                 ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CITypedData implements TypedData {}
-//             ^
-// [cfe] 'TypedData' is restricted and can't be extended or implemented.
-//                                    ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CMTypedData with TypedData {}
-//             ^
-// [cfe] 'TypedData' is restricted and can't be extended or implemented.
-//                              ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIByteData implements ByteData {}
-//             ^
-// [cfe] 'ByteData' is restricted and can't be extended or implemented.
-//                                   ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CMByteData with ByteData {}
-//             ^
-// [cfe] 'ByteData' is restricted and can't be extended or implemented.
-//                             ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIInt8List implements Int8List {}
-//             ^
-// [cfe] 'Int8List' is restricted and can't be extended or implemented.
-//                                   ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CMInt8List with Int8List {}
-//             ^
-// [cfe] 'Int8List' is restricted and can't be extended or implemented.
-//                             ^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIUint8List implements Uint8List {}
-//             ^
-// [cfe] 'Uint8List' is restricted and can't be extended or implemented.
-//                                    ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CMUint8List with Uint8List {}
-//             ^
-// [cfe] 'Uint8List' is restricted and can't be extended or implemented.
-//                              ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class Uint8CIClampedList implements Uint8ClampedList {}
-//             ^
-// [cfe] 'Uint8ClampedList' is restricted and can't be extended or implemented.
-//                                           ^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class Uint8CMClampedList with Uint8ClampedList {}
-//             ^
-// [cfe] 'Uint8ClampedList' is restricted and can't be extended or implemented.
-//                                     ^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIInt16List implements Int16List {}
-//             ^
-// [cfe] 'Int16List' is restricted and can't be extended or implemented.
-//                                    ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CMInt16List with Int16List {}
-//             ^
-// [cfe] 'Int16List' is restricted and can't be extended or implemented.
-//                              ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIUint16List implements Uint16List {}
-//             ^
-// [cfe] 'Uint16List' is restricted and can't be extended or implemented.
-//                                     ^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CMUint16List with Uint16List {}
-//             ^
-// [cfe] 'Uint16List' is restricted and can't be extended or implemented.
-//                               ^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIInt32List implements Int32List {}
-//             ^
-// [cfe] 'Int32List' is restricted and can't be extended or implemented.
-//                                    ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CMInt32List with Int32List {}
-//             ^
-// [cfe] 'Int32List' is restricted and can't be extended or implemented.
-//                              ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIUint32List implements Uint32List {}
-//             ^
-// [cfe] 'Uint32List' is restricted and can't be extended or implemented.
-//                                     ^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CMUint32List with Uint32List {}
-//             ^
-// [cfe] 'Uint32List' is restricted and can't be extended or implemented.
-//                               ^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIInt64List implements Int64List {}
-//             ^
-// [cfe] 'Int64List' is restricted and can't be extended or implemented.
-//                                    ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CMInt64List with Int64List {}
-//             ^
-// [cfe] 'Int64List' is restricted and can't be extended or implemented.
-//                              ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIUint64List implements Uint64List {}
-//             ^
-// [cfe] 'Uint64List' is restricted and can't be extended or implemented.
-//                                     ^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CMUint64List with Uint64List {}
-//             ^
-// [cfe] 'Uint64List' is restricted and can't be extended or implemented.
-//                               ^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIFloat32List implements Float32List {}
-//             ^
-// [cfe] 'Float32List' is restricted and can't be extended or implemented.
-//                                      ^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CMFloat32List with Float32List {}
-//             ^
-// [cfe] 'Float32List' is restricted and can't be extended or implemented.
-//                                ^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIFloat64List implements Float64List {}
-//             ^
-// [cfe] 'Float64List' is restricted and can't be extended or implemented.
-//                                      ^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CMFloat64List with Float64List {}
-//             ^
-// [cfe] 'Float64List' is restricted and can't be extended or implemented.
-//                                ^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIInt32x4List implements Int32x4List {}
-//             ^
-// [cfe] 'Int32x4List' is restricted and can't be extended or implemented.
-//                                      ^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CMInt32x4List with Int32x4List {}
-//             ^
-// [cfe] 'Int32x4List' is restricted and can't be extended or implemented.
-//                                ^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIFloat32x4List implements Float32x4List {}
-//             ^
-// [cfe] 'Float32x4List' is restricted and can't be extended or implemented.
-//                                        ^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CMFloat32x4List with Float32x4List {}
-//             ^
-// [cfe] 'Float32x4List' is restricted and can't be extended or implemented.
-//                                  ^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIFloat64x2List implements Float64x2List {}
-//             ^
-// [cfe] 'Float64x2List' is restricted and can't be extended or implemented.
-//                                        ^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CMFloat64x2List with Float64x2List {}
-//             ^
-// [cfe] 'Float64x2List' is restricted and can't be extended or implemented.
-//                                  ^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIInt32x4 implements Int32x4 {}
-//             ^
-// [cfe] 'Int32x4' is restricted and can't be extended or implemented.
-//                                  ^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CMInt32x4 with Int32x4 {}
-//             ^
-// [cfe] 'Int32x4' is restricted and can't be extended or implemented.
-//                            ^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIFloat32x4 implements Float32x4 {}
-//             ^
-// [cfe] 'Float32x4' is restricted and can't be extended or implemented.
-//                                    ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CMFloat32x4 with Float32x4 {}
-//             ^
-// [cfe] 'Float32x4' is restricted and can't be extended or implemented.
-//                              ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIFloat64x2 implements Float64x2 {}
-//             ^
-// [cfe] 'Float64x2' is restricted and can't be extended or implemented.
-//                                    ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CMFloat64x2 with Float64x2 {}
-//             ^
-// [cfe] 'Float64x2' is restricted and can't be extended or implemented.
-//                              ^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-// Endian cannot be used as a superclass or mixin.
-
-abstract class CIEndian implements Endian {}
-//             ^
-// [cfe] 'Endian' is restricted and can't be extended or implemented.
-//                                 ^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIUnByteBufferView implements UnmodifiableByteBufferView {}
-//             ^
-// [cfe] 'UnmodifiableByteBufferView' is restricted and can't be extended or implemented.
-//                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIUnByteDataView implements UnmodifiableByteDataView {}
-//             ^
-// [cfe] 'UnmodifiableByteDataView' is restricted and can't be extended or implemented.
-//                                         ^^^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIUnInt8LV implements UnmodifiableInt8ListView {}
-//             ^
-// [cfe] 'UnmodifiableInt8ListView' is restricted and can't be extended or implemented.
-//                                   ^^^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIUnUint8LV implements UnmodifiableUint8ListView {}
-//             ^
-// [cfe] 'UnmodifiableUint8ListView' is restricted and can't be extended or implemented.
-//                                    ^^^^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIUnUint8ClampedLV implements UnmodifiableUint8ClampedListView {}
-//             ^
-// [cfe] 'UnmodifiableUint8ClampedListView' is restricted and can't be extended or implemented.
-//                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIUnInt16LV implements UnmodifiableInt16ListView {}
-//             ^
-// [cfe] 'UnmodifiableInt16ListView' is restricted and can't be extended or implemented.
-//                                    ^^^^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIUnUint16LV implements UnmodifiableUint16ListView {}
-//             ^
-// [cfe] 'UnmodifiableUint16ListView' is restricted and can't be extended or implemented.
-//                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIUnInt32LV implements UnmodifiableInt32ListView {}
-//             ^
-// [cfe] 'UnmodifiableInt32ListView' is restricted and can't be extended or implemented.
-//                                    ^^^^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIUnUint32LV implements UnmodifiableUint32ListView {}
-//             ^
-// [cfe] 'UnmodifiableUint32ListView' is restricted and can't be extended or implemented.
-//                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIUnInt64LV implements UnmodifiableInt64ListView {}
-//             ^
-// [cfe] 'UnmodifiableInt64ListView' is restricted and can't be extended or implemented.
-//                                    ^^^^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIUnUint64LV implements UnmodifiableUint64ListView {}
-//             ^
-// [cfe] 'UnmodifiableUint64ListView' is restricted and can't be extended or implemented.
-//                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIUnFloat32LV implements UnmodifiableFloat32ListView {}
-//             ^
-// [cfe] 'UnmodifiableFloat32ListView' is restricted and can't be extended or implemented.
-//                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIUnFloat64LV implements UnmodifiableFloat64ListView {}
-//             ^
-// [cfe] 'UnmodifiableFloat64ListView' is restricted and can't be extended or implemented.
-//                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIUnInt32x4LV implements UnmodifiableInt32x4ListView {}
-//             ^
-// [cfe] 'UnmodifiableInt32x4ListView' is restricted and can't be extended or implemented.
-//                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIUnFloat32x4LV implements UnmodifiableFloat32x4ListView {}
-//             ^
-// [cfe] 'UnmodifiableFloat32x4ListView' is restricted and can't be extended or implemented.
-//                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
-
-abstract class CIUnFloat64x2LV implements UnmodifiableFloat64x2ListView {}
-//             ^
-// [cfe] 'UnmodifiableFloat64x2ListView' is restricted and can't be extended or implemented.
-//                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-// [analyzer] COMPILE_TIME_ERROR.SUBTYPE_OF_DISALLOWED_TYPE
diff --git a/tests/lib_2/typed_data/setRange_1_test.dart b/tests/lib_2/typed_data/setRange_1_test.dart
deleted file mode 100644
index b9363778b5d..00000000000
--- a/tests/lib_2/typed_data/setRange_1_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-import 'setRange_lib.dart';
-
-sameTypeTest() {
-  checkSameSize(makeInt16List, makeInt16View, makeInt16View);
-  checkSameSize(makeUint16List, makeUint16View, makeUint16View);
-}
-
-main() {
-  sameTypeTest();
-}
diff --git a/tests/lib_2/typed_data/setRange_2_test.dart b/tests/lib_2/typed_data/setRange_2_test.dart
deleted file mode 100644
index 9e5cb664bc0..00000000000
--- a/tests/lib_2/typed_data/setRange_2_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-import 'setRange_lib.dart';
-
-sameElementSizeTest() {
-  // Views of elements with the same size but different 'types'.
-  checkSameSize(makeInt16List, makeInt16View, makeUint16View);
-  checkSameSize(makeInt16List, makeUint16View, makeInt16View);
-}
-
-main() {
-  sameElementSizeTest();
-}
diff --git a/tests/lib_2/typed_data/setRange_3_test.dart b/tests/lib_2/typed_data/setRange_3_test.dart
deleted file mode 100644
index a8b9507f237..00000000000
--- a/tests/lib_2/typed_data/setRange_3_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-import 'setRange_lib.dart';
-
-expandContractTest() {
-  // Copying between views that have different element sizes can't be done with
-  // a single scan-up or scan-down.
-  //
-  // Typed lists a1 and a2 share a buffer as follows:
-  //
-  // a1:  aaaabbbbccccddddeeeeffffgggghhhh
-  // a2:              abcdefgh
-
-  var a1 = new Int32List(8);
-  var buffer = a1.buffer;
-  var a2 = new Int8List.view(buffer, 12, 8);
-
-  initialize(a2);
-  Expect.equals('[1, 2, 3, 4, 5, 6, 7, 8]', '$a2');
-  a1.setRange(0, 8, a2);
-  Expect.equals('[1, 2, 3, 4, 5, 6, 7, 8]', '$a1');
-
-  initialize(a1);
-  Expect.equals('[1, 2, 3, 4, 5, 6, 7, 8]', '$a1');
-  a2.setRange(0, 8, a1);
-  Expect.equals('[1, 2, 3, 4, 5, 6, 7, 8]', '$a2');
-}
-
-main() {
-  expandContractTest();
-}
diff --git a/tests/lib_2/typed_data/setRange_4_test.dart b/tests/lib_2/typed_data/setRange_4_test.dart
deleted file mode 100644
index ba3ad832a38..00000000000
--- a/tests/lib_2/typed_data/setRange_4_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-import 'setRange_lib.dart';
-
-clampingTest() {
-  var a1 = new Int8List(8);
-  var a2 = new Uint8ClampedList.view(a1.buffer);
-  initialize(a1);
-  Expect.equals('[1, 2, 3, 4, 5, 6, 7, 8]', '$a1');
-  Expect.equals('[1, 2, 3, 4, 5, 6, 7, 8]', '$a2');
-  a1[0] = -1;
-  a2.setRange(0, 2, a1);
-  Expect.equals('[0, 2, 3, 4, 5, 6, 7, 8]', '$a2');
-}
-
-main() {
-  clampingTest();
-}
diff --git a/tests/lib_2/typed_data/setRange_5_test.dart b/tests/lib_2/typed_data/setRange_5_test.dart
deleted file mode 100644
index 052d84d6661..00000000000
--- a/tests/lib_2/typed_data/setRange_5_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-import 'setRange_lib.dart';
-
-overlapTest() {
-  // buffer:  xxxxxxxxyyyyyyyyzzzzzzzz  // 3 * float32
-  // a0:       1 2 3 4 5 6 7 8 9101112  // 12 bytes
-  // a1:         a b c d e              //  5 bytes
-  // a2:           p q r s t            //  5 bytes
-  var buffer = new Float32List(3).buffer;
-  var a0 = new Int8List.view(buffer);
-  var a1 = new Int8List.view(buffer, 1, 5);
-  var a2 = new Int8List.view(buffer, 2, 5);
-  initialize(a0);
-  Expect.equals('[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]', '$a0');
-  Expect.equals('[2, 3, 4, 5, 6]', '$a1');
-  Expect.equals('[3, 4, 5, 6, 7]', '$a2');
-  a1.setRange(0, 5, a2);
-  Expect.equals('[1, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 12]', '$a0');
-
-  initialize(a0);
-  Expect.equals('[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]', '$a0');
-  Expect.equals('[2, 3, 4, 5, 6]', '$a1');
-  Expect.equals('[3, 4, 5, 6, 7]', '$a2');
-  a2.setRange(0, 5, a1);
-  Expect.equals('[1, 2, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12]', '$a0');
-}
-
-main() {
-  overlapTest();
-}
diff --git a/tests/lib_2/typed_data/setRange_lib.dart b/tests/lib_2/typed_data/setRange_lib.dart
deleted file mode 100644
index 2dd9b8e4344..00000000000
--- a/tests/lib_2/typed_data/setRange_lib.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-library setRange_lib;
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-initialize(a) {
-  for (int i = 0; i < a.length; i++) {
-    a[i] = i + 1;
-  }
-}
-
-makeInt16View(buffer, byteOffset, length) =>
-    new Int16List.view(buffer, byteOffset, length);
-
-makeUint16View(buffer, byteOffset, length) =>
-    new Uint16List.view(buffer, byteOffset, length);
-
-makeInt16List(length) => new Int16List(length);
-makeUint16List(length) => new Uint16List(length);
-
-checkSameSize(constructor0, constructor1, constructor2) {
-  // Typed lists a1 and a2 share a buffer as follows (bytes):
-  //
-  //  a0:  aabbccddeeffgghhii
-  //  a1:  aabbccddeeffgg
-  //  a2:      aabbccddeeffgg
-
-  var a0 = constructor0(9);
-  var buffer = a0.buffer;
-  var a1 = constructor1(buffer, 0, 7);
-  var a2 = constructor2(buffer, 2 * a0.elementSizeInBytes, 7);
-
-  initialize(a0);
-  Expect.equals('[1, 2, 3, 4, 5, 6, 7, 8, 9]', '$a0');
-  Expect.equals('[1, 2, 3, 4, 5, 6, 7]', '$a1');
-  Expect.equals('[3, 4, 5, 6, 7, 8, 9]', '$a2');
-
-  initialize(a0);
-  a1.setRange(0, 7, a2);
-  Expect.equals('[3, 4, 5, 6, 7, 8, 9, 8, 9]', '$a0');
-
-  initialize(a0);
-  a2.setRange(0, 7, a1);
-  Expect.equals('[1, 2, 1, 2, 3, 4, 5, 6, 7]', '$a0');
-
-  initialize(a0);
-  a1.setRange(1, 7, a2);
-  Expect.equals('[1, 3, 4, 5, 6, 7, 8, 8, 9]', '$a0');
-
-  initialize(a0);
-  a2.setRange(1, 7, a1);
-  Expect.equals('[1, 2, 3, 1, 2, 3, 4, 5, 6]', '$a0');
-
-  initialize(a0);
-  a1.setRange(0, 6, a2, 1);
-  Expect.equals('[4, 5, 6, 7, 8, 9, 7, 8, 9]', '$a0');
-
-  initialize(a0);
-  a2.setRange(0, 6, a1, 1);
-  Expect.equals('[1, 2, 2, 3, 4, 5, 6, 7, 9]', '$a0');
-}
diff --git a/tests/lib_2/typed_data/simd_store_to_load_forward_test.dart b/tests/lib_2/typed_data/simd_store_to_load_forward_test.dart
deleted file mode 100644
index d0c98a64613..00000000000
--- a/tests/lib_2/typed_data/simd_store_to_load_forward_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--max_deoptimization_counter_threshold=1000 --optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-// Library tag to be able to run in html test framework.
-library simd_store_to_load_forward_test;
-
-import 'dart:typed_data';
-import "package:expect/expect.dart";
-
-Float32x4 testLoadStoreForwardingFloat32x4(Float32x4List l, Float32x4 v) {
-  l[1] = v;
-  var r = l[1];
-  return r;
-}
-
-main() {
-  Float32x4List l = new Float32x4List(4);
-  Float32x4 a = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  Float32x4 b;
-  for (int i = 0; i < 20; i++) {
-    b = testLoadStoreForwardingFloat32x4(l, a);
-  }
-  Expect.equals(a.x, b.x);
-  Expect.equals(a.y, b.y);
-  Expect.equals(a.z, b.z);
-  Expect.equals(a.w, b.w);
-}
diff --git a/tests/lib_2/typed_data/simd_type_check_removal.dart b/tests/lib_2/typed_data/simd_type_check_removal.dart
deleted file mode 100644
index 0eedfd7f731..00000000000
--- a/tests/lib_2/typed_data/simd_type_check_removal.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--max_deoptimization_counter_threshold=1000 --optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-// Library tag to be able to run in html test framework.
-library simd_store_to_load_forward_test;
-
-import 'dart:typed_data';
-import "package:expect/expect.dart";
-
-bool testFloat32x4TypeCheck(Float32x4 v) {
-  if (v == null) {
-    v = new Float32x4.zero();
-  }
-  var l = v * v;
-  var b = v + l;
-  return b is Float32x4;
-}
-
-main() {
-  Float32x4List l = new Float32x4List(4);
-  Float32x4 a = new Float32x4(1.0, 2.0, 3.0, 4.0);
-  var b;
-  for (int i = 0; i < 8000; i++) {
-    b = testFloat32x4TypeCheck(null);
-  }
-  Expect.equals(true, b);
-}
diff --git a/tests/lib_2/typed_data/simd_type_null_params_test.dart b/tests/lib_2/typed_data/simd_type_null_params_test.dart
deleted file mode 100644
index c30e4ec01e3..00000000000
--- a/tests/lib_2/typed_data/simd_type_null_params_test.dart
+++ /dev/null
@@ -1,124 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:typed_data';
-import "package:expect/expect.dart";
-
-bool throwsArgumentError(void Function() f) {
-  bool caught = false;
-  try {
-    f();
-  } on ArgumentError catch (e) {
-    caught = true;
-  } on TypeError catch (e) {
-    // dart2js
-    caught = true;
-  }
-  return caught;
-}
-
-main() {
-  // Float32x4
-  final float32x4 = Float32x4(0.0, 0.0, 0.0, 0.0);
-  Expect.equals(throwsArgumentError(() => float32x4 + null), true);
-  Expect.equals(throwsArgumentError(() => float32x4 - null), true);
-  Expect.equals(throwsArgumentError(() => float32x4 * null), true);
-  Expect.equals(throwsArgumentError(() => float32x4 / null), true);
-  Expect.equals(throwsArgumentError(() => float32x4.lessThan(null)), true);
-  Expect.equals(
-      throwsArgumentError(() => float32x4.lessThanOrEqual(null)), true);
-  Expect.equals(throwsArgumentError(() => float32x4.greaterThan(null)), true);
-  Expect.equals(
-      throwsArgumentError(() => float32x4.greaterThanOrEqual(null)), true);
-  Expect.equals(throwsArgumentError(() => float32x4.equal(null)), true);
-  Expect.equals(throwsArgumentError(() => float32x4.notEqual(null)), true);
-  Expect.equals(throwsArgumentError(() => float32x4.scale(null)), true);
-  Expect.equals(
-      throwsArgumentError(() => float32x4.clamp(null, float32x4)), true);
-  Expect.equals(
-      throwsArgumentError(() => float32x4.clamp(float32x4, null)), true);
-  Expect.equals(throwsArgumentError(() => float32x4.shuffle(null)), true);
-  Expect.equals(
-      throwsArgumentError(() => float32x4.shuffleMix(float32x4, null)), true);
-  Expect.equals(throwsArgumentError(() => float32x4.shuffleMix(null, 0)), true);
-  Expect.equals(throwsArgumentError(() => float32x4.withX(null)), true);
-  Expect.equals(throwsArgumentError(() => float32x4.withY(null)), true);
-  Expect.equals(throwsArgumentError(() => float32x4.withZ(null)), true);
-  Expect.equals(throwsArgumentError(() => float32x4.withW(null)), true);
-  Expect.equals(throwsArgumentError(() => float32x4.min(null)), true);
-  Expect.equals(throwsArgumentError(() => float32x4.max(null)), true);
-  Expect.equals(
-      throwsArgumentError(() => Float32x4(null, 0.0, 0.0, 0.0)), true);
-  Expect.equals(
-      throwsArgumentError(() => Float32x4(0.0, null, 0.0, 0.0)), true);
-  Expect.equals(
-      throwsArgumentError(() => Float32x4(0.0, 0.0, null, 0.0)), true);
-  Expect.equals(
-      throwsArgumentError(() => Float32x4(0.0, 0.0, 0.0, null)), true);
-
-  // Float32x4.splat
-  Expect.equals(throwsArgumentError(() => Float32x4.splat(null)), true);
-
-  // Float64x2
-  final float64x2 = Float64x2(0.0, 0.0);
-  Expect.equals(throwsArgumentError(() => float64x2 + null), true);
-  Expect.equals(throwsArgumentError(() => float64x2 - null), true);
-  Expect.equals(throwsArgumentError(() => float64x2 * null), true);
-  Expect.equals(throwsArgumentError(() => float64x2 / null), true);
-  Expect.equals(throwsArgumentError(() => float64x2.scale(null)), true);
-  Expect.equals(
-      throwsArgumentError(() => float64x2.clamp(null, float64x2)), true);
-  Expect.equals(
-      throwsArgumentError(() => float64x2.clamp(float64x2, null)), true);
-  Expect.equals(throwsArgumentError(() => float64x2.withX(null)), true);
-  Expect.equals(throwsArgumentError(() => float64x2.withY(null)), true);
-  Expect.equals(throwsArgumentError(() => Float64x2(null, 0.0)), true);
-  Expect.equals(throwsArgumentError(() => Float64x2(0.0, null)), true);
-  Expect.equals(throwsArgumentError(() => float64x2.min(null)), true);
-  Expect.equals(throwsArgumentError(() => float64x2.max(null)), true);
-
-  // Float64x2.splat
-  Expect.equals(throwsArgumentError(() => Float64x2.splat(null)), true);
-
-  // Int32x4
-  final int32x4 = Int32x4(0, 0, 0, 0);
-  Expect.equals(throwsArgumentError(() => int32x4 + null), true);
-  Expect.equals(throwsArgumentError(() => int32x4 - null), true);
-  Expect.equals(throwsArgumentError(() => int32x4 ^ null), true);
-  Expect.equals(throwsArgumentError(() => int32x4 & null), true);
-  Expect.equals(throwsArgumentError(() => int32x4 | null), true);
-  Expect.equals(throwsArgumentError(() => int32x4.shuffle(null)), true);
-  Expect.equals(
-      throwsArgumentError(() => int32x4.shuffleMix(int32x4, null)), true);
-  Expect.equals(throwsArgumentError(() => int32x4.shuffleMix(null, 0)), true);
-  Expect.equals(throwsArgumentError(() => int32x4.withX(null)), true);
-  Expect.equals(throwsArgumentError(() => int32x4.withY(null)), true);
-  Expect.equals(throwsArgumentError(() => int32x4.withZ(null)), true);
-  Expect.equals(throwsArgumentError(() => int32x4.withW(null)), true);
-  Expect.equals(throwsArgumentError(() => int32x4.withFlagX(null)), true);
-  Expect.equals(throwsArgumentError(() => int32x4.withFlagY(null)), true);
-  Expect.equals(throwsArgumentError(() => int32x4.withFlagZ(null)), true);
-  Expect.equals(throwsArgumentError(() => int32x4.withFlagW(null)), true);
-
-  Expect.equals(throwsArgumentError(() => Int32x4(null, 0, 0, 0)), true);
-  Expect.equals(throwsArgumentError(() => Int32x4(0, null, 0, 0)), true);
-  Expect.equals(throwsArgumentError(() => Int32x4(0, 0, null, 0)), true);
-  Expect.equals(throwsArgumentError(() => Int32x4(0, 0, 0, null)), true);
-  Expect.equals(
-      throwsArgumentError(() => int32x4.select(null, float32x4)), true);
-  Expect.equals(
-      throwsArgumentError(() => int32x4.select(float32x4, null)), true);
-
-  // Int32x4.bool
-  Expect.equals(
-      throwsArgumentError(() => Int32x4.bool(null, false, false, false)), true);
-  Expect.equals(
-      throwsArgumentError(() => Int32x4.bool(false, null, false, false)), true);
-  Expect.equals(
-      throwsArgumentError(() => Int32x4.bool(false, false, null, false)), true);
-  Expect.equals(
-      throwsArgumentError(() => Int32x4.bool(false, false, false, null)), true);
-}
diff --git a/tests/lib_2/typed_data/typed_data_from_list_test.dart b/tests/lib_2/typed_data/typed_data_from_list_test.dart
deleted file mode 100644
index dc8362ea88f..00000000000
--- a/tests/lib_2/typed_data/typed_data_from_list_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:collection';
-import 'dart:typed_data';
-
-main() {
-  var list = new UnmodifiableListView([1, 2]);
-  var typed = new Uint8List.fromList(list);
-  if (typed[0] != 1 || typed[1] != 2 || typed.length != 2) {
-    throw 'Test failed';
-  }
-}
diff --git a/tests/lib_2/typed_data/typed_data_hierarchy_int64_test.dart b/tests/lib_2/typed_data/typed_data_hierarchy_int64_test.dart
deleted file mode 100644
index fb2b8c2b20b..00000000000
--- a/tests/lib_2/typed_data/typed_data_hierarchy_int64_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-// Library tag to be able to run in html test framework.
-library typed_data_hierarchy_int64_test;
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-var inscrutable = null;
-
-void implementsTypedData() {
-  Expect.isTrue(inscrutable(new Int64List(1)) is TypedData);
-  Expect.isTrue(inscrutable(new Uint64List(1)) is TypedData);
-}
-
-void implementsList() {
-  Expect.isTrue(inscrutable(new Int64List(1)) is List<int>);
-  Expect.isTrue(inscrutable(new Uint64List(1)) is List<int>);
-}
-
-main() {
-  inscrutable = (x) => x;
-  implementsTypedData();
-  implementsList();
-}
diff --git a/tests/lib_2/typed_data/typed_data_hierarchy_test.dart b/tests/lib_2/typed_data/typed_data_hierarchy_test.dart
deleted file mode 100644
index 20707e57cc1..00000000000
--- a/tests/lib_2/typed_data/typed_data_hierarchy_test.dart
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
-
-// @dart = 2.9
-
-// Library tag to be able to run in html test framework.
-library typed_data_hierarchy_test;
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-var inscrutable = null;
-
-void testClampedList() {
-  // Force lookup of Uint8List first.
-  Expect.isTrue(inscrutable(new Uint8List(1)) is Uint8List);
-
-  Expect.isFalse(
-      new Uint8ClampedList(1) is Uint8List,
-      'Uint8ClampedList should not be a subtype of Uint8List '
-      'in optimizable test');
-  Expect.isFalse(inscrutable(new Uint8ClampedList(1)) is Uint8List,
-      'Uint8ClampedList should not be a subtype of Uint8List in dynamic test');
-}
-
-void implementsTypedData() {
-  Expect.isTrue(inscrutable(new ByteData(1)) is TypedData);
-  Expect.isTrue(inscrutable(new Float32List(1)) is TypedData);
-  Expect.isTrue(inscrutable(new Float32x4List(1)) is TypedData);
-  Expect.isTrue(inscrutable(new Float64List(1)) is TypedData);
-  Expect.isTrue(inscrutable(new Int8List(1)) is TypedData);
-  Expect.isTrue(inscrutable(new Int16List(1)) is TypedData);
-  Expect.isTrue(inscrutable(new Int32List(1)) is TypedData);
-  Expect.isTrue(inscrutable(new Uint8List(1)) is TypedData);
-  Expect.isTrue(inscrutable(new Uint8ClampedList(1)) is TypedData);
-  Expect.isTrue(inscrutable(new Uint16List(1)) is TypedData);
-  Expect.isTrue(inscrutable(new Uint32List(1)) is TypedData);
-}
-
-void implementsList() {
-  Expect.isTrue(inscrutable(new Float32List(1)) is List<double>);
-  Expect.isTrue(inscrutable(new Float32x4List(1)) is List<Float32x4>);
-  Expect.isTrue(inscrutable(new Float64List(1)) is List<double>);
-  Expect.isTrue(inscrutable(new Int8List(1)) is List<int>);
-  Expect.isTrue(inscrutable(new Int16List(1)) is List<int>);
-  Expect.isTrue(inscrutable(new Int32List(1)) is List<int>);
-  Expect.isTrue(inscrutable(new Uint8List(1)) is List<int>);
-  Expect.isTrue(inscrutable(new Uint8ClampedList(1)) is List<int>);
-  Expect.isTrue(inscrutable(new Uint16List(1)) is List<int>);
-  Expect.isTrue(inscrutable(new Uint32List(1)) is List<int>);
-}
-
-main() {
-  inscrutable = (x) => x;
-
-  // Note: this test must come first to control order of lookup on Uint8List and
-  // Uint8ClampedList.
-  testClampedList();
-
-  implementsTypedData();
-  implementsList();
-}
diff --git a/tests/lib_2/typed_data/typed_data_list_test.dart b/tests/lib_2/typed_data/typed_data_list_test.dart
deleted file mode 100644
index 3e512d41944..00000000000
--- a/tests/lib_2/typed_data/typed_data_list_test.dart
+++ /dev/null
@@ -1,195 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:assumeDynamic')
-@pragma('dart2js:noInline')
-confuse(x) => x;
-
-void testListFunctions<T extends num>(
-    List<T> list, first, last, T toElementType(dynamic x)) {
-  assert(list.length > 0);
-
-  var reversed = list.reversed;
-  Expect.listEquals(list, reversed.toList().reversed.toList());
-  int index = list.length - 1;
-  for (var x in reversed) {
-    Expect.equals(list[index], x);
-    index--;
-  }
-
-  var zero = toElementType(0);
-  var one = toElementType(1);
-  var two = toElementType(2);
-  // Typed lists are fixed length.
-  Expect.throwsUnsupportedError(() => list.add(zero));
-  Expect.throwsUnsupportedError(() => list.addAll([one, two]));
-  Expect.throwsUnsupportedError(() => list.clear());
-  Expect.throwsUnsupportedError(() => list.insert(0, zero));
-  Expect.throwsUnsupportedError(() => list.insertAll(0, [one, two]));
-  Expect.throwsUnsupportedError(() => list.remove(zero));
-  Expect.throwsUnsupportedError(() => list.removeAt(0));
-  Expect.throwsUnsupportedError(() => list.removeLast());
-  Expect.throwsUnsupportedError(() => list.removeRange(0, 1));
-  Expect.throwsUnsupportedError(() => list.removeWhere((x) => true));
-  Expect.throwsUnsupportedError(() => list.replaceRange(0, 1, []));
-  Expect.throwsUnsupportedError(() => list.retainWhere((x) => true));
-
-  var map = list.asMap();
-  Expect.equals(list.length, map.length);
-  Expect.isTrue(map is Map);
-  Expect.listEquals(list, map.values.toList());
-  for (int i = 0; i < list.length; i++) {
-    Expect.equals(list[i], map[i]);
-  }
-
-  Expect.listEquals(list, list.getRange(0, list.length).toList());
-  var subRange = list.getRange(1, list.length - 1).toList();
-  Expect.equals(list.length - 2, subRange.length);
-  index = 1;
-  for (var x in subRange) {
-    Expect.equals(list[index], x);
-    index++;
-  }
-
-  Expect.equals(0, list.lastIndexOf(first));
-  Expect.equals(list.length - 1, list.lastIndexOf(last));
-  if (list is List<int>) {
-    Expect.equals(-1, list.lastIndexOf(-1 as T));
-  } else {
-    Expect.equals(-1, list.lastIndexOf(-1.0 as T));
-  }
-
-  var copy = list.toList();
-  list.fillRange(1, list.length - 1, toElementType(0));
-  Expect.equals(copy.first, list.first);
-  Expect.equals(copy.last, list.last);
-  for (int i = 1; i < list.length - 1; i++) {
-    Expect.equals(0, list[i]);
-  }
-
-  list.setAll(
-      1, list.getRange(1, list.length - 1).map((x) => toElementType(2)));
-  Expect.equals(copy.first, list.first);
-  Expect.equals(copy.last, list.last);
-  for (int i = 1; i < list.length - 1; i++) {
-    Expect.equals(2, list[i]);
-  }
-
-  list.setRange(1, list.length - 1,
-      new Iterable.generate(list.length - 2, (x) => toElementType(x + 5)));
-  Expect.equals(first, list.first);
-  Expect.equals(last, list.last);
-  for (int i = 1; i < list.length - 1; i++) {
-    Expect.equals(4 + i, list[i]);
-  }
-  list.setRange(1, list.length - 1,
-      new Iterable.generate(list.length - 1, (x) => toElementType(x + 5)), 1);
-  Expect.equals(first, list.first);
-  Expect.equals(last, list.last);
-  for (int i = 1; i < list.length - 1; i++) {
-    Expect.equals(5 + i, list[i]);
-  }
-
-  Expect.throwsStateError(() => list.setRange(1, list.length - 1, []));
-
-  for (int i = 0; i < list.length; i++) {
-    list[list.length - 1 - i] = toElementType(i);
-  }
-  list.sort();
-  for (int i = 0; i < list.length; i++) {
-    Expect.equals(i, list[i]);
-  }
-
-  Expect.listEquals(list.getRange(1, list.length - 1).toList(),
-      list.sublist(1, list.length - 1));
-  Expect.listEquals(list.getRange(1, list.length).toList(), list.sublist(1));
-  Expect.listEquals(list, list.sublist(0));
-
-  Expect.listEquals([], list.sublist(0, 0));
-  Expect.listEquals([], list.sublist(list.length));
-  Expect.listEquals([], list.sublist(list.length, list.length));
-
-  Expect.throwsRangeError(() => list.sublist(list.length + 1));
-  Expect.throwsRangeError(() => list.sublist(0, list.length + 1));
-  Expect.throwsRangeError(() => list.sublist(1, 0));
-}
-
-void emptyChecks<T>(List<T> list, T toElementType(dynamic c)) {
-  assert(list.length == 0);
-
-  Expect.isTrue(list.isEmpty);
-
-  var reversed = list.reversed;
-  Expect.listEquals(list, reversed.toList().reversed.toList());
-
-  var zero = toElementType(0);
-  var one = toElementType(1);
-  var two = toElementType(2);
-  // Typed lists are fixed length. Even when they are empty.
-  Expect.throwsUnsupportedError(() => list.add(zero));
-  Expect.throwsUnsupportedError(() => list.addAll([one, two]));
-  Expect.throwsUnsupportedError(() => list.clear());
-  Expect.throwsUnsupportedError(() => list.insert(0, zero));
-  Expect.throwsUnsupportedError(() => list.insertAll(0, [one, two]));
-  Expect.throwsUnsupportedError(() => list.remove(zero));
-  Expect.throwsUnsupportedError(() => list.removeAt(0));
-  Expect.throwsUnsupportedError(() => list.removeLast());
-  Expect.throwsUnsupportedError(() => list.removeRange(0, 1));
-  Expect.throwsUnsupportedError(() => list.removeWhere((x) => true));
-  Expect.throwsUnsupportedError(() => list.replaceRange(0, 1, []));
-  Expect.throwsUnsupportedError(() => list.retainWhere((x) => true));
-
-  var map = list.asMap();
-  Expect.equals(list.length, map.length);
-  Expect.isTrue(map is Map);
-  Expect.listEquals(list, map.values.toList());
-  for (int i = 0; i < list.length; i++) {
-    Expect.equals(list[i], map[i]);
-  }
-
-  Expect.listEquals(list, list.getRange(0, list.length).toList());
-
-  var copy = list.toList();
-  // Make sure we are allowed to call range-functions if they are 0..0.
-  list.fillRange(0, 0);
-  Expect.listEquals([], list.getRange(0, 0).toList());
-
-  final minusOne = toElementType(-1);
-  Expect.equals(-1, list.lastIndexOf(minusOne));
-  list.setRange(0, 0, [one, two]);
-
-  list.sort();
-
-  Expect.listEquals([], list.sublist(0, 0));
-}
-
-main() {
-  double toDouble(x) => x.toDouble();
-  int toInt(x) => x.toInt();
-
-  testListFunctions(
-      new Float32List.fromList([1.5, 6.3, 9.5]), 1.5, 9.5, toDouble);
-  testListFunctions(
-      new Float64List.fromList([1.5, 6.3, 9.5]), 1.5, 9.5, toDouble);
-  testListFunctions(new Int8List.fromList([3, 5, 9]), 3, 9, toInt);
-  testListFunctions(new Int16List.fromList([3, 5, 9]), 3, 9, toInt);
-  testListFunctions(new Int32List.fromList([3, 5, 9]), 3, 9, toInt);
-  testListFunctions(new Uint8List.fromList([3, 5, 9]), 3, 9, toInt);
-  testListFunctions(new Uint16List.fromList([3, 5, 9]), 3, 9, toInt);
-  testListFunctions(new Uint32List.fromList([3, 5, 9]), 3, 9, toInt);
-
-  emptyChecks(new Float32List(0), toDouble);
-  emptyChecks(new Float64List(0), toDouble);
-  emptyChecks(new Int8List(0), toInt);
-  emptyChecks(new Int16List(0), toInt);
-  emptyChecks(new Int32List(0), toInt);
-  emptyChecks(new Uint8List(0), toInt);
-  emptyChecks(new Uint16List(0), toInt);
-  emptyChecks(new Uint32List(0), toInt);
-}
diff --git a/tests/lib_2/typed_data/typed_data_load2_test.dart b/tests/lib_2/typed_data/typed_data_load2_test.dart
deleted file mode 100644
index 013e2c6776e..00000000000
--- a/tests/lib_2/typed_data/typed_data_load2_test.dart
+++ /dev/null
@@ -1,109 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that the compiler's load elimination phase sees interfering writes to
-// the array's buffer.
-
-import "dart:typed_data";
-import 'package:expect/expect.dart';
-
-aliasWithByteData1() {
-  var aa = new Int8List(10);
-  var b = new ByteData.view(aa.buffer);
-  for (int i = 0; i < aa.length; i++) aa[i] = 9;
-
-  var x1 = aa[3];
-  b.setInt8(3, 1);
-  var x2 = aa[3];
-
-  Expect.equals(9, x1);
-  Expect.equals(1, x2);
-}
-
-aliasWithByteData2() {
-  var b = new ByteData(10);
-  var aa = new Int8List.view(b.buffer);
-  for (int i = 0; i < aa.length; i++) aa[i] = 9;
-
-  var x1 = aa[3];
-  b.setInt8(3, 1);
-  var x2 = aa[3];
-
-  Expect.equals(9, x1);
-  Expect.equals(1, x2);
-}
-
-alias8x8() {
-  var buffer = new Int8List(10).buffer;
-  var a1 = new Int8List.view(buffer);
-  var a2 = new Int8List.view(buffer, 1);
-
-  for (int i = 0; i < a1.length; i++) a1[i] = 9;
-
-  // Different indexes that alias.
-  var x1 = a1[1];
-  a2[0] = 0;
-  var x2 = a1[1];
-  Expect.equals(9, x1);
-  Expect.equals(0, x2);
-
-  for (int i = 0; i < a1.length; i++) a1[i] = 9;
-
-  // Same indexes that don't alias.
-  x1 = a1[1];
-  a2[1] = 5;
-  x2 = a1[1];
-  Expect.equals(9, x1);
-  Expect.equals(9, x2);
-}
-
-alias8x16() {
-  var a1 = new Int8List(10);
-  var a2 = new Int16List.view(a1.buffer);
-
-  for (int i = 0; i < a1.length; i++) a1[i] = 9;
-
-  // Same indexes that alias.
-  var x1 = a1[0];
-  a2[0] = 0x101;
-  var x2 = a1[0];
-  Expect.equals(9, x1);
-  Expect.equals(1, x2);
-
-  for (int i = 0; i < a1.length; i++) a1[i] = 9;
-
-  // Different indexes that alias.
-  x1 = a1[4];
-  a2[2] = 0x505;
-  x2 = a1[4];
-  Expect.equals(9, x1);
-  Expect.equals(5, x2);
-
-  for (int i = 0; i < a1.length; i++) a1[i] = 9;
-
-  // Same indexes that don't alias.
-  x1 = a1[3];
-  a2[3] = 0x505;
-  x2 = a1[3];
-  Expect.equals(9, x1);
-  Expect.equals(9, x2);
-
-  for (int i = 0; i < a1.length; i++) a1[i] = 9;
-
-  // Different indexes don't alias.
-  x1 = a1[2];
-  a2[0] = 0x505;
-  x2 = a1[2];
-  Expect.equals(9, x1);
-  Expect.equals(9, x2);
-}
-
-main() {
-  aliasWithByteData1();
-  aliasWithByteData2();
-  alias8x8();
-  alias8x16();
-}
diff --git a/tests/lib_2/typed_data/typed_data_load_test.dart b/tests/lib_2/typed_data/typed_data_load_test.dart
deleted file mode 100644
index 23bfd5dd85f..00000000000
--- a/tests/lib_2/typed_data/typed_data_load_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Test that the compiler's load elimination phase does not re-use the
-// value that was stored in a typed array.
-
-import "dart:typed_data";
-
-main() {
-  var list = new Int8List(1);
-  list[0] = 300;
-  if (list[0] != 44) {
-    throw 'Test failed';
-  }
-
-  var a = list[0];
-  list[0] = 0;
-  if (list[0] != 0) {
-    throw 'Test failed';
-  }
-}
diff --git a/tests/lib_2/typed_data/typed_data_sublist_type_test.dart b/tests/lib_2/typed_data/typed_data_sublist_type_test.dart
deleted file mode 100644
index ca55ed54797..00000000000
--- a/tests/lib_2/typed_data/typed_data_sublist_type_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-// Test that the sublist of a typed_data list is of the same type.
-
-var inscrutable;
-
-class Is<T> {
-  final name;
-  Is(this.name);
-  check(x) => x is T;
-  expect(x, part) {
-    Expect.isTrue(check(x), '($part: ${x.runtimeType}) is $name');
-  }
-
-  expectNot(x, part) {
-    Expect.isFalse(check(x), '($part: ${x.runtimeType}) is! $name');
-  }
-}
-
-void testSublistType(input, positive, all) {
-  var negative = all.where((check) => !positive.contains(check));
-
-  input = inscrutable(input);
-
-  for (var check in positive) check.expect(input, 'input');
-  for (var check in negative) check.expectNot(input, 'input');
-
-  var sub = inscrutable(input.sublist(1));
-
-  for (var check in positive) check.expect(sub, 'sublist');
-  for (var check in negative) check.expectNot(sub, 'sublist');
-
-  var sub2 = inscrutable(input.sublist(10));
-
-  Expect.equals(0, sub2.length);
-  for (var check in positive) check.expect(sub2, 'empty sublist');
-  for (var check in negative) check.expectNot(sub2, 'empty sublist');
-}
-
-void testTypes() {
-  var isFloat32list = new Is<Float32List>('Float32List');
-  var isFloat64list = new Is<Float64List>('Float64List');
-
-  var isInt8List = new Is<Int8List>('Int8List');
-  var isInt16List = new Is<Int16List>('Int16List');
-  var isInt32List = new Is<Int32List>('Int32List');
-
-  var isUint8List = new Is<Uint8List>('Uint8List');
-  var isUint16List = new Is<Uint16List>('Uint16List');
-  var isUint32List = new Is<Uint32List>('Uint32List');
-
-  var isUint8ClampedList = new Is<Uint8ClampedList>('Uint8ClampedList');
-
-  var isIntList = new Is<List<int>>('List<int>');
-  var isDoubleList = new Is<List<double>>('List<double>');
-  var isNumList = new Is<List<num>>('List<num>');
-
-  var allChecks = <Is<List>>[
-    isFloat32list,
-    isFloat64list,
-    isInt8List,
-    isInt16List,
-    isInt32List,
-    isUint8List,
-    isUint16List,
-    isUint32List,
-    isUint8ClampedList
-  ];
-
-  testInt(list, check) {
-    testSublistType(list, <Is<List>>[check, isIntList, isNumList], allChecks);
-  }
-
-  testDouble(list, check) {
-    testSublistType(
-        list, <Is<List>>[check, isDoubleList, isNumList], allChecks);
-  }
-
-  testDouble(new Float32List(10), isFloat32list);
-  testDouble(new Float64List(10), isFloat64list);
-
-  testInt(new Int8List(10), isInt8List);
-  testInt(new Int16List(10), isInt16List);
-  testInt(new Int32List(10), isInt32List);
-
-  testInt(new Uint8List(10), isUint8List);
-  testInt(new Uint16List(10), isUint16List);
-  testInt(new Uint32List(10), isUint32List);
-
-  testInt(new Uint8ClampedList(10), isUint8ClampedList);
-}
-
-main() {
-  inscrutable = (x) => x;
-  testTypes();
-}
diff --git a/tests/lib_2/typed_data/typed_data_view_length_test.dart b/tests/lib_2/typed_data/typed_data_view_length_test.dart
deleted file mode 100644
index 1c34db447d8..00000000000
--- a/tests/lib_2/typed_data/typed_data_view_length_test.dart
+++ /dev/null
@@ -1,80 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Regression test for https://github.com/dart-lang/sdk/issues/43204
-
-// @dart = 2.9
-
-import 'dart:typed_data';
-
-import "package:expect/expect.dart";
-
-void main() {
-  // This test should not throw.
-  // The created views should extend as far as possible in each case.
-  var buffer = Uint8List(127).buffer;
-
-  var f32l = buffer.asFloat32List();
-  Expect.equals(31, f32l.length);
-  Expect.equals(31 * Float32List.bytesPerElement, f32l.lengthInBytes);
-  f32l = buffer.asFloat32List(8);
-  Expect.equals(29, f32l.length);
-  Expect.equals(29 * Float32List.bytesPerElement, f32l.lengthInBytes);
-
-  var f64l = buffer.asFloat64List();
-  Expect.equals(15, f64l.length);
-  Expect.equals(15 * Float64List.bytesPerElement, f64l.lengthInBytes);
-  f64l = buffer.asFloat64List(8);
-  Expect.equals(14, f64l.length);
-  Expect.equals(14 * Float64List.bytesPerElement, f64l.lengthInBytes);
-
-  var i16l = buffer.asInt16List();
-  Expect.equals(63, i16l.length);
-  Expect.equals(63 * Int16List.bytesPerElement, i16l.lengthInBytes);
-  i16l = buffer.asInt16List(8);
-  Expect.equals(59, i16l.length);
-  Expect.equals(59 * Int16List.bytesPerElement, i16l.lengthInBytes);
-
-  var i32l = buffer.asInt32List();
-  Expect.equals(31, i32l.length);
-  Expect.equals(31 * Int32List.bytesPerElement, i32l.lengthInBytes);
-  i32l = buffer.asInt32List(8);
-  Expect.equals(29, i32l.length);
-  Expect.equals(29 * Int32List.bytesPerElement, i32l.lengthInBytes);
-
-  var u16l = buffer.asUint16List();
-  Expect.equals(63, u16l.length);
-  Expect.equals(63 * Uint16List.bytesPerElement, u16l.lengthInBytes);
-  u16l = buffer.asUint16List(8);
-  Expect.equals(59, u16l.length);
-  Expect.equals(59 * Uint16List.bytesPerElement, u16l.lengthInBytes);
-
-  var u32l = buffer.asUint32List();
-  Expect.equals(31, u32l.length);
-  Expect.equals(31 * Uint32List.bytesPerElement, u32l.lengthInBytes);
-  u32l = buffer.asUint32List(8);
-  Expect.equals(29, u32l.length);
-  Expect.equals(29 * Uint32List.bytesPerElement, u32l.lengthInBytes);
-
-  var f32x4l = buffer.asFloat32x4List();
-  Expect.equals(7, f32x4l.length);
-  Expect.equals(7 * Float32x4List.bytesPerElement, f32x4l.lengthInBytes);
-  f32x4l = buffer.asFloat32x4List(16);
-  Expect.equals(6, f32x4l.length);
-  Expect.equals(6 * Float32x4List.bytesPerElement, f32x4l.lengthInBytes);
-
-  var f64x2l = buffer.asFloat64x2List();
-  Expect.equals(7, f64x2l.length);
-  Expect.equals(7 * Float64x2List.bytesPerElement, f64x2l.lengthInBytes);
-  f64x2l = buffer.asFloat64x2List(16);
-  Expect.equals(6, f64x2l.length);
-  Expect.equals(6 * Float64x2List.bytesPerElement, f64x2l.lengthInBytes);
-
-  var i32x4l = buffer.asInt32x4List();
-  Expect.equals(7, i32x4l.length);
-  Expect.equals(7 * Int32x4List.bytesPerElement, i32x4l.lengthInBytes);
-  i32x4l = buffer.asInt32x4List(16);
-  Expect.equals(6, i32x4l.length);
-  Expect.equals(6 * Int32x4List.bytesPerElement, i32x4l.lengthInBytes);
-}
diff --git a/tests/lib_2/typed_data/typed_data_view_sublist_test.dart b/tests/lib_2/typed_data/typed_data_view_sublist_test.dart
deleted file mode 100644
index 5b8aeb54108..00000000000
--- a/tests/lib_2/typed_data/typed_data_view_sublist_test.dart
+++ /dev/null
@@ -1,211 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-const bool isJS = identical(1, 1.0); // Implies no 64-bit integers.
-
-void main() {
-  testViews();
-  testErrors();
-}
-
-void testViews() {
-  var bytes = Uint8List.fromList([for (int i = 0; i < 256; i++) i]);
-
-  // Non-view classes.
-  var bd = () {
-    var bd = ByteData(256);
-    for (int i = 0; i < 256; i++) bd.setUint8(i, i);
-    return bd;
-  }();
-  var u8 = Uint8List.fromList(bytes);
-  var i8 = Int8List.fromList(bytes);
-  var c8 = Uint8ClampedList.fromList(bytes);
-  var u16 = Uint16List.fromList(Uint16List.view(bytes.buffer));
-  var i16 = Int16List.fromList(Int16List.view(bytes.buffer));
-  var u32 = Uint32List.fromList(Uint32List.view(bytes.buffer));
-  var i32 = Int32List.fromList(Int32List.view(bytes.buffer));
-  var u64 = isJS ? null : Uint64List.fromList(Uint64List.view(bytes.buffer));
-  var i64 = isJS ? null : Int64List.fromList(Int64List.view(bytes.buffer));
-  var f32 = Float32List.fromList(Float32List.view(bytes.buffer));
-  var f64 = Float64List.fromList(Float64List.view(bytes.buffer));
-  var f32x4 = Float32x4List.fromList(Float32x4List.view(bytes.buffer));
-  var i32x4 = Int32x4List.fromList(Int32x4List.view(bytes.buffer));
-  var f64x2 = Float64x2List.fromList(Float64x2List.view(bytes.buffer));
-
-  // View classes. A buffer with the right data in the middle.
-  var doubleBuffer = Uint8List(512)..setRange(128, 384, bytes);
-  var bdv = ByteData.view(doubleBuffer.buffer, 128, 256);
-  var u8v = Uint8List.view(doubleBuffer.buffer, 128, 256);
-  var i8v = Int8List.view(doubleBuffer.buffer, 128, 256);
-  var c8v = Uint8ClampedList.view(doubleBuffer.buffer, 128, 256);
-  var u16v = Uint16List.view(doubleBuffer.buffer, 128, 128);
-  var i16v = Int16List.view(doubleBuffer.buffer, 128, 128);
-  var u32v = Uint32List.view(doubleBuffer.buffer, 128, 64);
-  var i32v = Int32List.view(doubleBuffer.buffer, 128, 64);
-  var u64v = isJS ? null : Uint64List.view(doubleBuffer.buffer, 128, 32);
-  var i64v = isJS ? null : Int64List.view(doubleBuffer.buffer, 128, 32);
-  var f32v = Float32List.view(doubleBuffer.buffer, 128, 64);
-  var f64v = Float64List.view(doubleBuffer.buffer, 128, 32);
-  var f32x4v = Float32x4List.view(doubleBuffer.buffer, 128, 16);
-  var i32x4v = Int32x4List.view(doubleBuffer.buffer, 128, 16);
-  var f64x2v = Float64x2List.view(doubleBuffer.buffer, 128, 16);
-
-  var allTypedData = <TypedData>[
-    bd,
-    u8,
-    i8,
-    c8,
-    u16,
-    i16,
-    u32,
-    i32,
-    if (!isJS) u64,
-    if (!isJS) i64,
-    f32,
-    f64,
-    f32x4,
-    i32x4,
-    f64x2,
-    u8v,
-    i8v,
-    c8v,
-    u16v,
-    i16v,
-    u32v,
-    i32v,
-    if (!isJS) u64v,
-    if (!isJS) i64v,
-    f32v,
-    f64v,
-    f32x4v,
-    i32x4v,
-    f64x2v,
-  ];
-
-  for (var td in allTypedData) {
-    var tdType = td.runtimeType.toString();
-    testSame(TypedData data) {
-      expectBuffer(td.buffer, data.buffer);
-      Expect.equals(td.lengthInBytes, data.lengthInBytes);
-      Expect.equals(td.offsetInBytes, data.offsetInBytes);
-    }
-
-    testSame(ByteData.sublistView(td));
-    testSame(Int8List.sublistView(td));
-    testSame(Uint8List.sublistView(td));
-    testSame(Uint8ClampedList.sublistView(td));
-    testSame(Int16List.sublistView(td));
-    testSame(Uint16List.sublistView(td));
-    testSame(Int32List.sublistView(td));
-    testSame(Uint32List.sublistView(td));
-    if (!isJS) testSame(Int64List.sublistView(td));
-    if (!isJS) testSame(Uint64List.sublistView(td));
-    testSame(Float32List.sublistView(td));
-    testSame(Float64List.sublistView(td));
-    testSame(Float32x4List.sublistView(td));
-    testSame(Int32x4List.sublistView(td));
-    testSame(Float64x2List.sublistView(td));
-
-    var length = td.lengthInBytes ~/ td.elementSizeInBytes;
-    for (int start = 0; start < length; start += 16) {
-      for (int end = start; end < length; end += 16) {
-        void testSlice(TypedData data) {
-          var name = "$tdType -> ${data.runtimeType} $start..$end";
-          expectBuffer(td.buffer, data.buffer, name);
-          int offsetInBytes = td.offsetInBytes + start * td.elementSizeInBytes;
-          int lengthInBytes = (end - start) * td.elementSizeInBytes;
-          Expect.equals(lengthInBytes, data.lengthInBytes, name);
-          Expect.equals(offsetInBytes, data.offsetInBytes, name);
-        }
-
-        testSlice(ByteData.sublistView(td, start, end));
-        testSlice(Int8List.sublistView(td, start, end));
-        testSlice(Uint8List.sublistView(td, start, end));
-        testSlice(Uint8ClampedList.sublistView(td, start, end));
-        testSlice(Int16List.sublistView(td, start, end));
-        testSlice(Uint16List.sublistView(td, start, end));
-        testSlice(Int32List.sublistView(td, start, end));
-        testSlice(Uint32List.sublistView(td, start, end));
-        if (!isJS) testSlice(Int64List.sublistView(td, start, end));
-        if (!isJS) testSlice(Uint64List.sublistView(td, start, end));
-        testSlice(Float32List.sublistView(td, start, end));
-        testSlice(Float64List.sublistView(td, start, end));
-        testSlice(Float32x4List.sublistView(td, start, end));
-        testSlice(Int32x4List.sublistView(td, start, end));
-        testSlice(Float64x2List.sublistView(td, start, end));
-      }
-    }
-  }
-}
-
-void testErrors() {
-  // Alignment must be right for non-byte-sized results.
-  // offsetInBytes offset must be a multiple of the element size.
-  // lengthInBytes must be a multiple of the element size.
-  var bytes = Uint8List.fromList([for (int i = 0; i < 256; i++) i]);
-
-  var oddStartView = Uint8List.view(bytes.buffer, 1, 32);
-  var oddLengthView = Uint8List.view(bytes.buffer, 0, 33);
-
-  void testThrows(void Function() operation) {
-    Expect.throws<ArgumentError>(operation);
-  }
-
-  testThrows(() => Uint16List.sublistView(oddStartView));
-  testThrows(() => Int16List.sublistView(oddStartView));
-  testThrows(() => Uint32List.sublistView(oddStartView));
-  testThrows(() => Int32List.sublistView(oddStartView));
-  if (!isJS) testThrows(() => Uint64List.sublistView(oddStartView));
-  if (!isJS) testThrows(() => Int64List.sublistView(oddStartView));
-  testThrows(() => Float32List.sublistView(oddStartView));
-  testThrows(() => Float64List.sublistView(oddStartView));
-  testThrows(() => Float32x4List.sublistView(oddStartView));
-  testThrows(() => Int32x4List.sublistView(oddStartView));
-  testThrows(() => Float64x2List.sublistView(oddStartView));
-
-  testThrows(() => Uint16List.sublistView(oddLengthView));
-  testThrows(() => Int16List.sublistView(oddLengthView));
-  testThrows(() => Uint32List.sublistView(oddLengthView));
-  testThrows(() => Int32List.sublistView(oddLengthView));
-  if (!isJS) testThrows(() => Uint64List.sublistView(oddLengthView));
-  if (!isJS) testThrows(() => Int64List.sublistView(oddLengthView));
-  testThrows(() => Float32List.sublistView(oddLengthView));
-  testThrows(() => Float64List.sublistView(oddLengthView));
-  testThrows(() => Float32x4List.sublistView(oddLengthView));
-  testThrows(() => Int32x4List.sublistView(oddLengthView));
-  testThrows(() => Float64x2List.sublistView(oddLengthView));
-}
-
-void expectBuffer(ByteBuffer buffer, ByteBuffer dataBuffer, [String name]) {
-  // Buffer objects are not necessarily *identical* even though they
-  // represent the same underlying data. The VM allocates buffer objects
-  // lazily for inline typed data objects.
-  if (identical(buffer, dataBuffer)) return;
-  if (buffer.lengthInBytes != dataBuffer.lengthInBytes) {
-    Expect.fail("Different buffers${name == null ? "" : ": $name"}");
-  }
-  // Cannot distinguish empty buffers.
-  if (buffer.lengthInBytes == 0) return;
-  // Contains the same value now.
-  var l1 = Uint8List.view(buffer);
-  var l2 = Uint8List.view(dataBuffer);
-  var byte1 = l1[0];
-  var byte2 = l2[0];
-  if (byte1 != byte2) {
-    Expect.fail("Different buffers${name == null ? "" : ": $name"}");
-  }
-  // Byte written to one buffer can be read from the other.
-  var newByte1 = byte1 ^ 1;
-  l1[0] = newByte1;
-  var newByte2 = l2[0];
-  l1[0] = byte1;
-  if (newByte1 != newByte2) {
-    Expect.fail("Different buffers${name == null ? "" : ": $name"}");
-  }
-}
diff --git a/tests/lib_2/typed_data/typed_list_iterable_test.dart b/tests/lib_2/typed_data/typed_list_iterable_test.dart
deleted file mode 100644
index 5f418c0e20a..00000000000
--- a/tests/lib_2/typed_data/typed_list_iterable_test.dart
+++ /dev/null
@@ -1,189 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:typed_data';
-
-import 'package:expect/expect.dart';
-
-void testIterableFunctions<T extends num>(
-    List<T> list, T first, T last, T zero) {
-  assert(list.length > 0);
-
-  Expect.equals(first, list.first);
-  Expect.equals(last, list.last);
-  Expect.equals(first, list.firstWhere((x) => x == first));
-  Expect.equals(last, list.lastWhere((x) => x == last));
-  if (list.length == 1) {
-    Expect.equals(first, list.single);
-    Expect.equals(first, list.singleWhere((x) => x == last));
-  } else {
-    Expect.throwsStateError(() => list.single);
-    bool isFirst = true;
-    Expect.equals(first, list.singleWhere((x) {
-      if (isFirst) {
-        isFirst = false;
-        return true;
-      }
-      return false;
-    }));
-  }
-  Expect.isFalse(list.isEmpty);
-
-  int i = 0;
-  for (var x in list) {
-    Expect.equals(list[i++], x);
-  }
-  Expect.isTrue(list.any((x) => x == last));
-  Expect.isFalse(list.any((x) => false));
-  Expect.isTrue(list.contains(last));
-  Expect.equals(first, list.elementAt(0));
-  Expect.isTrue(list.every((x) => true));
-  Expect.isFalse(list.every((x) => x != last));
-  Expect.listEquals([], list.expand((x) => []).toList());
-  var expand2 = list.expand((x) => [x, x]);
-  i = 0;
-  for (var x in expand2) {
-    Expect.equals(list[i ~/ 2], x);
-    i++;
-  }
-  Expect.equals(2 * list.length, i);
-  Expect.listEquals(list, list.fold([], (result, x) => result..add(x)));
-  i = 0;
-  list.forEach((x) {
-    Expect.equals(list[i++], x);
-  });
-  Expect.equals(list.toList().join("*"), list.join("*"));
-  Expect.listEquals(list, list.map((x) => x).toList());
-  int mapCount = 0;
-  var mappedList = list.map((x) {
-    mapCount++;
-    return x;
-  });
-  Expect.equals(0, mapCount);
-  Expect.equals(list.length, mappedList.length);
-  Expect.equals(0, mapCount);
-  mappedList.join();
-  Expect.equals(list.length, mapCount);
-
-  Expect.listEquals(list, list.where((x) => true).toList());
-  int whereCount = 0;
-  var whereList = list.where((x) {
-    whereCount++;
-    return true;
-  });
-  Expect.equals(0, whereCount);
-  Expect.equals(list.length, whereList.length);
-  Expect.equals(list.length, whereCount);
-
-  if (list.length > 1) {
-    var reduceResult = zero + 1;
-    Expect.equals(list.length, list.reduce((x, y) => ++reduceResult as T));
-  } else {
-    Expect.equals(first, list.reduce((x, y) {
-      throw "should not be called";
-    }));
-  }
-
-  Expect.isTrue(list.skip(list.length).isEmpty);
-  Expect.listEquals(list, list.skip(0).toList());
-  Expect.isTrue(list.skipWhile((x) => true).isEmpty);
-  Expect.listEquals(list, list.skipWhile((x) => false).toList());
-  Expect.listEquals(list, list.take(list.length).toList());
-  Expect.isTrue(list.take(0).isEmpty);
-  Expect.isTrue(list.takeWhile((x) => false).isEmpty);
-  Expect.listEquals(list, list.takeWhile((x) => true).toList());
-  Expect.listEquals(list, list.toList().toList());
-  var l2 = list.toList();
-  l2.add(first);
-  Expect.equals(first, l2.last);
-  var l3 = list.toList(growable: false);
-  Expect.throwsUnsupportedError(() => l3.add(last));
-}
-
-void emptyChecks<T extends num>(List<T> list, T zero) {
-  assert(list.length == 0);
-
-  Expect.isTrue(list.isEmpty);
-
-  Expect.throwsStateError(() => list.first);
-  Expect.throwsStateError(() => list.last);
-  Expect.throwsStateError(() => list.single);
-  Expect.throwsStateError(() => list.firstWhere((x) => true));
-  Expect.throwsStateError(() => list.lastWhere((x) => true));
-  Expect.throwsStateError(() => list.singleWhere((x) => true));
-
-  Expect.isFalse(list.any((x) => true));
-  Expect.isFalse(list.contains(null));
-  Expect.throws(() => list.elementAt(0), (e) => e is RangeError);
-  Expect.isTrue(list.every((x) => false));
-  Expect.listEquals([], list.expand((x) => []).toList());
-  Expect.listEquals([], list.expand((x) => [x, x]).toList());
-  Expect.listEquals(
-      [],
-      list.expand((x) {
-        throw "should not be reached";
-      }).toList());
-  Expect.listEquals([], list.fold([], (result, x) => result..add(x)));
-  Expect.equals(list.toList().join("*"), list.join("*"));
-  Expect.listEquals(list, list.map((x) => x).toList());
-  int mapCount = 0;
-  var mappedList = list.map((x) {
-    mapCount++;
-    return x;
-  });
-  Expect.equals(0, mapCount);
-  Expect.equals(list.length, mappedList.length);
-  Expect.equals(0, mapCount);
-  mappedList.join();
-  Expect.equals(list.length, mapCount);
-
-  Expect.listEquals(list, list.where((x) => true).toList());
-  int whereCount = 0;
-  var whereList = list.where((x) {
-    whereCount++;
-    return true;
-  });
-  Expect.equals(0, whereCount);
-  Expect.equals(list.length, whereList.length);
-  Expect.equals(list.length, whereCount);
-
-  Expect.throwsStateError(() => list.reduce((x, y) => x));
-
-  Expect.isTrue(list.skip(list.length).isEmpty);
-  Expect.isTrue(list.skip(0).isEmpty);
-  Expect.isTrue(list.skipWhile((x) => true).isEmpty);
-  Expect.isTrue(list.skipWhile((x) => false).isEmpty);
-  Expect.isTrue(list.take(list.length).isEmpty);
-  Expect.isTrue(list.take(0).isEmpty);
-  Expect.isTrue(list.takeWhile((x) => false).isEmpty);
-  Expect.isTrue(list.takeWhile((x) => true).isEmpty);
-  Expect.isTrue(list.toList().isEmpty);
-  var l2 = list.toList();
-  l2.add(zero);
-  Expect.equals(zero, l2.last);
-  var l3 = list.toList(growable: false);
-  Expect.throwsUnsupportedError(() => l3.add(zero));
-}
-
-main() {
-  testIterableFunctions(new Float32List.fromList([1.5, 9.5]), 1.5, 9.5, 0.0);
-  testIterableFunctions(new Float64List.fromList([1.5, 9.5]), 1.5, 9.5, 0.0);
-  testIterableFunctions(new Int8List.fromList([3, 9]), 3, 9, 0);
-  testIterableFunctions(new Int16List.fromList([3, 9]), 3, 9, 0);
-  testIterableFunctions(new Int32List.fromList([3, 9]), 3, 9, 0);
-  testIterableFunctions(new Uint8List.fromList([3, 9]), 3, 9, 0);
-  testIterableFunctions(new Uint16List.fromList([3, 9]), 3, 9, 0);
-  testIterableFunctions(new Uint32List.fromList([3, 9]), 3, 9, 0);
-
-  emptyChecks(new Float32List(0), 0.0);
-  emptyChecks(new Float64List(0), 0.0);
-  emptyChecks(new Int8List(0), 0);
-  emptyChecks(new Int16List(0), 0);
-  emptyChecks(new Int32List(0), 0);
-  emptyChecks(new Uint8List(0), 0);
-  emptyChecks(new Uint16List(0), 0);
-  emptyChecks(new Uint32List(0), 0);
-}
diff --git a/tests/lib_2/typed_data/unmodifiable_typed_data_test.dart b/tests/lib_2/typed_data/unmodifiable_typed_data_test.dart
deleted file mode 100644
index fbbaa9d57f7..00000000000
--- a/tests/lib_2/typed_data/unmodifiable_typed_data_test.dart
+++ /dev/null
@@ -1,193 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// VMOptions=--inline_alloc
-// VMOptions=--no_inline_alloc
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-const bool supportsInt64 = bool.fromEnvironment('dart.isVM');
-
-List<int> intList = <int>[1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
-
-checkReadable(List<int> list) {
-  for (int i = 0; i < intList.length; i++) {
-    Expect.equals(list[i], intList[i]);
-  }
-}
-
-checkUnmodifiable(List<int> list) {
-  var zero = 0;
-  var one = 1;
-  var two = 2;
-  Expect.throwsUnsupportedError(() => list.add(zero));
-  Expect.throwsUnsupportedError(() => list.addAll([one, two]));
-  Expect.throwsUnsupportedError(() => list.clear());
-  Expect.throwsUnsupportedError(() => list.insert(0, zero));
-  Expect.throwsUnsupportedError(() => list.insertAll(0, [one, two]));
-  Expect.throwsUnsupportedError(() => list.remove(one));
-  Expect.throwsUnsupportedError(() => list.removeAt(0));
-  Expect.throwsUnsupportedError(() => list.removeLast());
-  Expect.throwsUnsupportedError(() => list.removeRange(0, 1));
-  Expect.throwsUnsupportedError(() => list.removeWhere((x) => true));
-  Expect.throwsUnsupportedError(() => list.replaceRange(0, 1, []));
-  Expect.throwsUnsupportedError(() => list.retainWhere((x) => false));
-  Expect.throwsUnsupportedError(() => list[0] = zero);
-  Expect.throwsUnsupportedError(() => list.setRange(0, 1, [one]));
-  Expect.throwsUnsupportedError(() => list.setAll(0, [one]));
-}
-
-checkIndirectUnmodifiable(TypedData data) {
-  var newView1 = data.buffer.asUint8List();
-  Expect.throwsUnsupportedError(() => newView1[0] = 1);
-  var newView2 = Uint8List.view(data.buffer);
-  Expect.throwsUnsupportedError(() => newView2[0] = 1);
-}
-
-int8ListTest() {
-  Int8List i8l = new Int8List.fromList(intList);
-  UnmodifiableInt8ListView list = new UnmodifiableInt8ListView(i8l);
-  checkReadable(list);
-  checkUnmodifiable(list);
-  checkIndirectUnmodifiable(list);
-}
-
-uint8ListTest() {
-  Uint8List u8l = new Uint8List.fromList(intList);
-  UnmodifiableUint8ListView list = new UnmodifiableUint8ListView(u8l);
-  checkReadable(list);
-  checkUnmodifiable(list);
-  checkIndirectUnmodifiable(list);
-}
-
-int16ListTest() {
-  Int16List i16l = new Int16List.fromList(intList);
-  UnmodifiableInt16ListView list = new UnmodifiableInt16ListView(i16l);
-  checkReadable(list);
-  checkUnmodifiable(list);
-  checkIndirectUnmodifiable(list);
-}
-
-uint16ListTest() {
-  Uint16List u16l = new Uint16List.fromList(intList);
-  UnmodifiableUint16ListView list = new UnmodifiableUint16ListView(u16l);
-  checkReadable(list);
-  checkUnmodifiable(list);
-  checkIndirectUnmodifiable(list);
-}
-
-int32ListTest() {
-  Int32List i32l = new Int32List.fromList(intList);
-  UnmodifiableInt32ListView list = new UnmodifiableInt32ListView(i32l);
-  checkReadable(list);
-  checkUnmodifiable(list);
-  checkIndirectUnmodifiable(list);
-}
-
-uint32ListTest() {
-  Uint32List u32l = new Uint32List.fromList(intList);
-  UnmodifiableUint32ListView list = new UnmodifiableUint32ListView(u32l);
-  checkReadable(list);
-  checkUnmodifiable(list);
-  checkIndirectUnmodifiable(list);
-}
-
-int64ListTest() {
-  Int64List i64l = new Int64List.fromList(intList);
-  UnmodifiableInt64ListView list = new UnmodifiableInt64ListView(i64l);
-  checkReadable(list);
-  checkUnmodifiable(list);
-  checkIndirectUnmodifiable(list);
-}
-
-uint64ListTest() {
-  Uint64List u64l = new Uint64List.fromList(intList);
-  UnmodifiableUint64ListView list = new UnmodifiableUint64ListView(u64l);
-  checkReadable(list);
-  checkUnmodifiable(list);
-  checkIndirectUnmodifiable(list);
-}
-
-List<double> doubleList = <double>[1.0, 2.0, 3.0, 4.0, 5.0];
-
-checkDoubleReadable(List<double> list) {
-  for (int i = 0; i < doubleList.length; i++) {
-    Expect.equals(list[i], doubleList[i]);
-  }
-}
-
-checkDoubleUnmodifiable(List<double> list) {
-  var zero = 0.0;
-  var one = 1.0;
-  var two = 2.0;
-  Expect.throwsUnsupportedError(() => list.add(zero));
-  Expect.throwsUnsupportedError(() => list.addAll([one, two]));
-  Expect.throwsUnsupportedError(() => list.clear());
-  Expect.throwsUnsupportedError(() => list.insert(0, zero));
-  Expect.throwsUnsupportedError(() => list.insertAll(0, [one, two]));
-  Expect.throwsUnsupportedError(() => list.remove(one));
-  Expect.throwsUnsupportedError(() => list.removeAt(0));
-  Expect.throwsUnsupportedError(() => list.removeLast());
-  Expect.throwsUnsupportedError(() => list.removeRange(0, 1));
-  Expect.throwsUnsupportedError(() => list.removeWhere((x) => true));
-  Expect.throwsUnsupportedError(() => list.replaceRange(0, 1, []));
-  Expect.throwsUnsupportedError(() => list.retainWhere((x) => false));
-  Expect.throwsUnsupportedError(() => list[0] = zero);
-  Expect.throwsUnsupportedError(() => list.setRange(0, 1, [one]));
-  Expect.throwsUnsupportedError(() => list.setAll(0, [one]));
-}
-
-float32ListTest() {
-  Float32List f32l = new Float32List.fromList(doubleList);
-  UnmodifiableFloat32ListView list = new UnmodifiableFloat32ListView(f32l);
-  checkDoubleReadable(list);
-  checkDoubleUnmodifiable(list);
-  checkIndirectUnmodifiable(list);
-}
-
-float64ListTest() {
-  Float64List f64l = new Float64List.fromList(doubleList);
-  UnmodifiableFloat64ListView list = new UnmodifiableFloat64ListView(f64l);
-  checkDoubleReadable(list);
-  checkDoubleUnmodifiable(list);
-  checkIndirectUnmodifiable(list);
-}
-
-byteDataTest() {
-  ByteBuffer buffer = new Uint8List.fromList(intList).buffer;
-  ByteData bd = new ByteData.view(buffer);
-  UnmodifiableByteDataView ubdv = new UnmodifiableByteDataView(bd);
-
-  Expect.throwsUnsupportedError(() => ubdv.setInt8(0, 0));
-  Expect.throwsUnsupportedError(() => ubdv.setUint8(0, 0));
-  Expect.throwsUnsupportedError(() => ubdv.setInt16(0, 0));
-  Expect.throwsUnsupportedError(() => ubdv.setUint16(0, 0));
-  Expect.throwsUnsupportedError(() => ubdv.setInt32(0, 0));
-  Expect.throwsUnsupportedError(() => ubdv.setUint32(0, 0));
-  Expect.throwsUnsupportedError(() => ubdv.setInt64(0, 0));
-  Expect.throwsUnsupportedError(() => ubdv.setUint64(0, 0));
-  Expect.throwsUnsupportedError(() => ubdv.setFloat32(0, 0.0));
-  Expect.throwsUnsupportedError(() => ubdv.setFloat64(0, 0.0));
-
-  checkIndirectUnmodifiable(ubdv);
-}
-
-main() {
-  int8ListTest();
-  uint8ListTest();
-  int16ListTest();
-  uint16ListTest();
-  int32ListTest();
-  uint32ListTest();
-  if (supportsInt64) {
-    int64ListTest();
-    uint64ListTest();
-  }
-  float32ListTest();
-  float64ListTest();
-  byteDataTest();
-}
diff --git a/tests/lib_2/typed_data/view_of_view_test.dart b/tests/lib_2/typed_data/view_of_view_test.dart
deleted file mode 100644
index 12646b075fd..00000000000
--- a/tests/lib_2/typed_data/view_of_view_test.dart
+++ /dev/null
@@ -1,95 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// The view implementation requires flattening views of views.
-
-// @dart = 2.9
-
-import "dart:typed_data";
-import "package:expect/expect.dart";
-
-@pragma("vm:never-inline")
-void readArray(Uint8List list) {
-  for (var i = 0; i < list.length; i++) {
-    Expect.equals(0, list[i]);
-  }
-}
-
-@pragma("vm:never-inline")
-void readView(Uint8List list) {
-  for (var i = 0; i < list.length; i++) {
-    Expect.equals(0, list[i]);
-  }
-}
-
-@pragma("vm:never-inline")
-void readUnmodifiableView(Uint8List list) {
-  for (var i = 0; i < list.length; i++) {
-    Expect.equals(0, list[i]);
-  }
-}
-
-@pragma("vm:never-inline")
-void readPolymorphic(Uint8List list) {
-  for (var i = 0; i < list.length; i++) {
-    Expect.equals(0, list[i]);
-  }
-}
-
-@pragma("vm:never-inline")
-void readDynamic(dynamic list) {
-  for (var i = 0; i < list.length; i++) {
-    Expect.equals(0, list[i]);
-  }
-}
-
-void main() {
-  var array = new Uint8List(100);
-  for (var i = 0; i < 10000; i++) {
-    readArray(array);
-    readPolymorphic(array);
-    readDynamic(array);
-  }
-
-  var view = new Uint8List.view(array.buffer);
-  for (var i = 0; i < 10000; i++) {
-    readView(view);
-    readPolymorphic(view);
-    readDynamic(view);
-  }
-
-  var unmodifiableView1 = new UnmodifiableUint8ListView(array);
-  for (var i = 0; i < 10000; i++) {
-    readUnmodifiableView(unmodifiableView1);
-    readPolymorphic(unmodifiableView1);
-    readDynamic(unmodifiableView1);
-  }
-
-  var unmodifiableView2 = new UnmodifiableUint8ListView(view);
-  for (var i = 0; i < 10000; i++) {
-    readUnmodifiableView(unmodifiableView2);
-    readPolymorphic(unmodifiableView2);
-    readDynamic(unmodifiableView2);
-  }
-
-  var viewOfView1 = new Uint8List.view(view.buffer);
-  for (var i = 0; i < 10000; i++) {
-    readView(viewOfView1);
-    readPolymorphic(viewOfView1);
-    readDynamic(viewOfView1);
-  }
-
-  var viewOfView2 = new Uint8List.view(unmodifiableView1.buffer);
-  for (var i = 0; i < 10000; i++) {
-    readView(viewOfView2);
-    readPolymorphic(viewOfView2);
-    readDynamic(viewOfView2);
-  }
-
-  var viewOfView3 = new Uint8List.view(unmodifiableView2.buffer);
-  for (var i = 0; i < 10000; i++) {
-    readView(viewOfView3);
-    readDynamic(viewOfView3);
-  }
-}
diff --git a/tests/lib_2/typed_data/zeroed_allocation_test.dart b/tests/lib_2/typed_data/zeroed_allocation_test.dart
deleted file mode 100644
index 3e78a53e931..00000000000
--- a/tests/lib_2/typed_data/zeroed_allocation_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:typed_data';
-import 'package:expect/expect.dart';
-
-final KB = 1024;
-
-final interestingSizes = <int>[
-  4 * KB, // VirtualMemory::PageSize()
-  64 * KB, // Heap::kAllocatablePageSize
-  256 * KB, // Heap::kNewAllocatableSize
-  512 * KB, // PageSpace::kPageSize
-];
-
-main() {
-  for (var base in interestingSizes) {
-    for (var delta = -32; delta <= 32; delta++) {
-      final size = base + delta;
-      final array = new Uint8List(size);
-      for (var i = 0; i < size; i++) {
-        Expect.equals(0, array[i]);
-      }
-    }
-  }
-}
diff --git a/tests/lib_2/web/mirrors_support_test.dart b/tests/lib_2/web/mirrors_support_test.dart
deleted file mode 100644
index 9f4c0b29a1a..00000000000
--- a/tests/lib_2/web/mirrors_support_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// 'dart:mirrors' can no longer be imported, doing so produces a static error.
-import 'dart:mirrors';   //# 01: compile-time error
-
-main() {
-  reflect(main);         //# 01: continued
-}
diff --git a/tests/web_2/LayoutTests_fast_mediastream_getusermedia_t01_test.dart b/tests/web_2/LayoutTests_fast_mediastream_getusermedia_t01_test.dart
deleted file mode 100644
index 31703f89ebb..00000000000
--- a/tests/web_2/LayoutTests_fast_mediastream_getusermedia_t01_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-/// Test derived from a broken co19 test
-/// (LayoutTests/fast/mediastream/getusermedia_t01.dart). Caused dart2js to
-/// crash.
-
-foo() {}
-
-gotStream1(stream) {
-  foo()
-      . //# 01: compile-time error
-      .then();
-}
-
-void main() {
-  print(gotStream1);
-}
diff --git a/tests/web_2/assert_with_message_test.dart b/tests/web_2/assert_with_message_test.dart
deleted file mode 100644
index 4cda95f57f6..00000000000
--- a/tests/web_2/assert_with_message_test.dart
+++ /dev/null
@@ -1,109 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-@pragma('dart2js:assumeDynamic')
-@pragma('dart2js:noInline')
-confuse(x) => x;
-
-testFalse(name, fault) {
-  try {
-    fault();
-  } catch (e) {
-    Expect.isTrue(e is AssertionError, '$name: is AssertionError');
-    Expect.isTrue('$e'.contains('Mumble'), '$name: <<$e>> contains "Mumble"');
-    return;
-  }
-  Expect.fail('Expected assert to throw');
-}
-
-test1() {
-  testFalse('constant false', () {
-    assert(false, 'Mumble');
-  });
-}
-
-test2() {
-  testFalse('variable false', () {
-    assert(confuse(false), 'Mumble');
-  });
-}
-
-testTypeErrors() {
-  check(name, fault) {
-    try {
-      fault();
-    } catch (e) {
-      Expect.isTrue(
-          e is TypeError, 'name: <<$e>> (${e.runtimeType}) is TypeError');
-      return;
-    }
-    Expect.fail('Expected assert to throw');
-  }
-
-  check('constant type error', () {
-    assert(null, 'Mumble');
-  });
-  check('variable type error', () {
-    assert(confuse(null), 'Mumble');
-  });
-  check('function type error', () {
-    assert(confuse(() => null), 'Mumble');
-  });
-}
-
-testMessageEffect1() {
-  var v = 1;
-  // Message is not evaluated on succeeding assert.
-  assert(confuse(true), '${v = 123}');
-  Expect.equals(1, v);
-}
-
-testMessageEffect2() {
-  var v = 1;
-  try {
-    // Message is evaluated to produce AssertionError argument on failing
-    // assert.
-    assert(confuse(false), '${v = 123}');
-  } catch (e) {
-    Expect.equals(123, v);
-    Expect.isTrue('$e'.contains('123'), '<<$e>> contains "123"');
-    return;
-  }
-  Expect.fail('Expected assert to throw');
-}
-
-testMessageEffect3() {
-  var v = 1;
-  try {
-    // Message is evaluated to produce AssertionError argument on failing
-    // assert.
-    assert(confuse(() => ++v > 100), '${++v}');
-  } catch (e) {
-    Expect.equals(3, v);
-    Expect.isTrue('$e'.contains('3'), '<<$e>> contains "3"');
-    return;
-  }
-  Expect.fail('Expected assert to throw');
-}
-
-bool get assertionsEnabled {
-  bool b = false;
-  assert((b = true));
-  return b;
-}
-
-main() {
-  if (!assertionsEnabled) return;
-
-  test1();
-  test2();
-  testTypeErrors();
-  testMessageEffect1();
-  testMessageEffect2();
-  testMessageEffect3();
-}
diff --git a/tests/web_2/assertions_disabled_test.dart b/tests/web_2/assertions_disabled_test.dart
deleted file mode 100644
index c57d00c44d2..00000000000
--- a/tests/web_2/assertions_disabled_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// ddcOptions=--no-enable-asserts
-
-import "package:expect/expect.dart";
-
-void main() {
-  Expect.isFalse(const bool.fromEnvironment('dart.web.assertions_enabled'));
-}
diff --git a/tests/web_2/assertions_enabled_test.dart b/tests/web_2/assertions_enabled_test.dart
deleted file mode 100644
index c6037fbd20a..00000000000
--- a/tests/web_2/assertions_enabled_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// dart2jsOptions=--enable-asserts
-
-import "package:expect/expect.dart";
-
-void main() {
-  Expect.isTrue(const bool.fromEnvironment('dart.web.assertions_enabled'));
-}
diff --git a/tests/web_2/async_helper.dart b/tests/web_2/async_helper.dart
deleted file mode 100644
index 72418f7b024..00000000000
--- a/tests/web_2/async_helper.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-library async_helper;
-
-/**
- * Asynchronous test runner.
- *
- * [test] is a one argument function which must accept a one argument
- * function (onDone).  The test function may start asynchronous tasks,
- * and must call onDone exactly once when all asynchronous tasks have
- * completed.  The argument to onDone is a bool which indicates
- * success of the complete test.
- */
-void asyncTest(void test(void onDone(bool success))) {
-  onDone(bool success) {
-    if (!success) throw 'test failed';
-    print('unittest-suite-success');
-  }
-
-  test(onDone);
-  print('unittest-suite-wait-for-done');
-}
diff --git a/tests/web_2/async_stacktrace_test.dart b/tests/web_2/async_stacktrace_test.dart
deleted file mode 100644
index 1e2733a4320..00000000000
--- a/tests/web_2/async_stacktrace_test.dart
+++ /dev/null
@@ -1,121 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "dart:async";
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-
-class Tracer {
-  final String expected;
-  final String name;
-  String _trace = "";
-
-  Tracer(this.expected, [this.name]);
-
-  void trace(msg) {
-    if (name != null) {
-      print("Tracing $name: $msg");
-    }
-    _trace += msg;
-  }
-
-  void done() {
-    Expect.equals(expected, _trace);
-  }
-}
-
-Future test1(Tracer tracer) {
-  foo() async
-      * //# asyncStar: ok
-  {
-    var savedStackTrace;
-    try {
-      try {
-        tracer.trace("a");
-        throw "Error";
-      } catch (e, st) {
-        tracer.trace("b");
-        savedStackTrace = st;
-      }
-      tracer.trace("c");
-      await new Future.error("Error 2", savedStackTrace);
-      tracer.trace("d");
-    } catch (e, st) {
-      tracer.trace("e");
-      Expect.equals(savedStackTrace.toString(), st.toString());
-    }
-    tracer.trace("f");
-  }
-
-  return foo()
-      .toList() //# asyncStar: continued
-      ;
-}
-
-Future test2(Tracer tracer) {
-  var savedStackTrace;
-  foo() async
-      * //# asyncStar: continued
-  {
-    try {
-      tracer.trace("a");
-      throw "Error";
-    } catch (e, st) {
-      tracer.trace("b");
-      savedStackTrace = st;
-    }
-    tracer.trace("c");
-    await new Future.error("Error 2", savedStackTrace);
-    tracer.trace("d");
-  }
-
-  return foo()
-      .toList() //# asyncStar: continued
-      .catchError((e, st) {
-    tracer.trace("e");
-    Expect.equals(savedStackTrace.toString(), st.toString());
-  });
-}
-
-Future test3(Tracer tracer) {
-  var savedStackTrace;
-  foo() async
-      * //# asyncStar: continued
-  {
-    try {
-      tracer.trace("a");
-      throw "Error";
-    } catch (e, st) {
-      tracer.trace("b");
-      savedStackTrace = st;
-      rethrow;
-    }
-  }
-
-  return foo()
-      .toList() //# asyncStar: continued
-      .catchError((e, st) {
-    tracer.trace("c");
-    Expect.equals(savedStackTrace.toString(), st.toString());
-  });
-}
-
-runTest(String expectedTrace, Future test(Tracer tracer)) async {
-  Tracer tracer = new Tracer(expectedTrace);
-  await test(tracer);
-  tracer.done();
-}
-
-runTests() async {
-  await runTest("abcef", test1);
-  await runTest("abce", test2);
-  await runTest("abc", test3);
-}
-
-main() {
-  asyncTest(runTests);
-}
diff --git a/tests/web_2/big_allocation_expression_test.dart b/tests/web_2/big_allocation_expression_test.dart
deleted file mode 100644
index d405a4d0417..00000000000
--- a/tests/web_2/big_allocation_expression_test.dart
+++ /dev/null
@@ -1,1300 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// This program crashes the SSA backend. http://dartbug.com/24635.
-
-import "package:expect/expect.dart";
-
-class A {
-  var a;
-  var b;
-
-  factory A(a, x) = A.q;
-
-  // @pragma('dart2js:noInline')  // This annotation causes the test to compile on SSA backend.
-  A.q(this.a, x) : b = x == null ? null : new W(x);
-}
-
-class W {
-  var a;
-  W(this.a);
-}
-
-measure(x, m) {
-  if (x == null) {
-    m['null']++;
-  } else if (x is W) {
-    m['W']++;
-    measure(x.a, m);
-  } else if (x is A) {
-    m['A']++;
-    measure(x.a, m);
-    measure(x.b, m);
-  }
-  return m;
-}
-
-main() {
-  // 4095 'new A'(...)' expressions, 12 calls deep.
-  var e = new A(
-      new A(
-          new A(
-              new A(
-                  new A(
-                      new A(
-                          new A(
-                              new A(
-                                  new A(
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))),
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null)))),
-                                  new A(
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))),
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))))),
-                              new A(
-                                  new A(
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))),
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null)))),
-                                  new A(
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))),
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null)))))),
-                          new A(
-                              new A(
-                                  new A(
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))),
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null)))),
-                                  new A(
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))),
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))))),
-                              new A(
-                                  new A(
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))),
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null)))),
-                                  new A(
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))),
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))))))),
-                      new A(
-                          new A(
-                              new A(
-                                  new A(
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))),
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null)))),
-                                  new A(
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))),
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))))),
-                              new A(
-                                  new A(
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))),
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null)))),
-                                  new A(
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))),
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null)))))),
-                          new A(
-                              new A(
-                                  new A(
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))),
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null)))),
-                                  new A(
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))),
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))))),
-                              new A(
-                                  new A(
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))),
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null)))),
-                                  new A(
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))),
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null)))))))),
-                  new A(
-                      new A(
-                          new A(
-                              new A(
-                                  new A(
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))),
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null)))),
-                                  new A(
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))),
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))))),
-                              new A(
-                                  new A(
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))),
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null)))),
-                                  new A(
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))),
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null)))))),
-                          new A(
-                              new A(
-                                  new A(
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))),
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null)))),
-                                  new A(
-                                      new A(
-                                          new A(new A(null, null),
-                                              new A(null, null)),
-                                          new A(new A(null, null),
-                                              new A(null, null))),
-                                      new A(
-                                          new A(new A(null, null),
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null))), new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))))), new A(new A(new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))), new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null)))), new A(new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))), new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null)))))), new A(new A(new A(new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))), new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null)))), new A(new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))), new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))))), new A(new A(new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))), new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null)))), new A(new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))), new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null)))))))), new A(new A(new A(new A(new A(new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))), new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null)))), new A(new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))), new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))))), new A(new A(new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))), new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null)))), new A(new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))), new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null)))))), new A(new A(new A(new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))), new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null)))), new A(new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))), new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))))), new A(new A(new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))), new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null)))), new A(new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))), new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))))))), new A(new A(new A(new A(new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))), new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null)))), new A(new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))), new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))))), new A(new A(new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))), new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null)))), new A(new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))), new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null)))))), new A(new A(new A(new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))), new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null)))), new A(new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))), new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))))), new A(new A(new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))), new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null)))), new A(new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))), new A(new A(new A(null, null), new A(null, null)), new A(new A(null, null), new A(null, null))))))))))));
-
-  var m = measure(e, {'null': 0, 'A': 0, 'W': 0});
-  Expect.equals(4096, m['null']);
-  Expect.equals(4095, m['A']);
-  Expect.equals(2047, m['W']);
-}
diff --git a/tests/web_2/block_expression_on_field_test.dart b/tests/web_2/block_expression_on_field_test.dart
deleted file mode 100644
index 7e4f1e4cb42..00000000000
--- a/tests/web_2/block_expression_on_field_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-/// Regression test for #36864
-///
-/// Block expressions in top-level fields used to crash the compiler.
-import "package:expect/expect.dart";
-
-final _a = {
-  ...{1}
-};
-
-class B {
-  static Set _b = {
-    ...{2}
-  };
-  Set _c = {
-    ...{3}
-  };
-}
-
-main() {
-  Expect.setEquals({1}, _a);
-  Expect.setEquals({2}, B._b);
-  Expect.setEquals({3}, (new B()._c));
-}
diff --git a/tests/web_2/boolean_conversion_test.dart b/tests/web_2/boolean_conversion_test.dart
deleted file mode 100644
index 2c51dfcedc8..00000000000
--- a/tests/web_2/boolean_conversion_test.dart
+++ /dev/null
@@ -1,105 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--omit-implicit-checks
-
-// Note: --omit-implicit-checks causes Expect.isNull to misbehave, so we use
-// Expect.equals(null, ...) instead.
-
-import 'package:expect/expect.dart';
-
-void main() {
-  conditionalTest();
-  orTest();
-  andTest();
-  ifTest();
-  forTest();
-  whileTest();
-  doTest();
-  notTest();
-  ifElementTest();
-  forElementTest();
-}
-
-void conditionalTest() {
-  bool x = null;
-  Expect.isFalse(x ? true : false);
-}
-
-void orTest() {
-  bool x = null;
-  Expect.equals(null, x || x);
-  Expect.isFalse(x || false);
-  Expect.isTrue(x || true);
-  Expect.equals(null, false || x);
-  Expect.isTrue(true || x);
-}
-
-void andTest() {
-  bool x = null;
-  Expect.isFalse(x && x);
-  Expect.isFalse(x && false);
-  Expect.isFalse(x && true);
-  Expect.isFalse(false && x);
-  Expect.equals(null, true && x);
-}
-
-void ifTest() {
-  bool x = null;
-  Expect.isFalse(() {
-    if (x) {
-      return true;
-    } else {
-      return false;
-    }
-  }());
-}
-
-void forTest() {
-  bool x = null;
-  Expect.isFalse(() {
-    for (; x;) {
-      return true;
-    }
-    return false;
-  }());
-}
-
-void whileTest() {
-  bool x = null;
-  Expect.isFalse(() {
-    while (x) {
-      return true;
-    }
-    return false;
-  }());
-}
-
-void doTest() {
-  bool x = null;
-  Expect.equals(1, () {
-    int n = 0;
-    do {
-      n++;
-    } while (x);
-    return n;
-  }());
-}
-
-void notTest() {
-  bool x = null;
-  Expect.isTrue(!x);
-}
-
-void ifElementTest() {
-  bool x = null;
-  Expect.listEquals([], [if (x) 1]);
-}
-
-void forElementTest() {
-  bool x = null;
-  Expect.listEquals([], [for (var i = 0; x; i++) i]);
-}
diff --git a/tests/web_2/bound_closure_interceptor_methods_test.dart b/tests/web_2/bound_closure_interceptor_methods_test.dart
deleted file mode 100644
index 45c1b782771..00000000000
--- a/tests/web_2/bound_closure_interceptor_methods_test.dart
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {
-  const A();
-  indexOf(item) => 42;
-
-  // This call get:indexOf has a known receiver type, so is is potentially
-  // eligible for a dummy receiver optimization.
-  getIndexOf() => this.indexOf;
-}
-
-var getIndexOfA = (a) => a.getIndexOf();
-
-var getter1 = (a) => a.indexOf;
-
-var getter2 = (a) {
-  // Known interceptor.
-  if (a is String) return a.indexOf;
-
-  // Call needs to be indirect to avoid inlining.
-  if (a is A) return getIndexOfA(a);
-
-  return a.indexOf;
-};
-
-var inscrutable;
-
-main() {
-  inscrutable = (x) => x;
-
-  var array = ['foo', 'bar', [], [], new A(), new A(), const [], const A()];
-
-  array = inscrutable(array);
-  getter1 = inscrutable(getter1);
-  getter2 = inscrutable(getter2);
-  getIndexOfA = inscrutable(getIndexOfA);
-
-  var set = new Set.from(array.map(getter1));
-
-  // Closures should be distinct since they are closures bound to distinct
-  // objects.
-  Expect.equals(array.length, set.length);
-
-  // And repeats should be equal to existing closures and add no new elements.
-  set.addAll(array.map(getter1));
-  Expect.equals(array.length, set.length);
-
-  // And closures created in different optimization contexts should be equal.
-  set.addAll(array.map(getter2));
-  Expect.equals(array.length, set.length);
-
-  for (int i = 0; i < array.length; i++) {
-    Expect.equals(array[i], array[i]);
-
-    Expect.isTrue(set.contains(getter1(array[i])));
-
-    Expect.equals(getter1(array[i]), getter1(array[i]));
-    Expect.equals(getter1(array[i]), getter2(array[i]));
-    Expect.equals(getter2(array[i]), getter1(array[i]));
-    Expect.equals(getter2(array[i]), getter2(array[i]));
-
-    Expect.equals(getter1(array[i]).hashCode, getter1(array[i]).hashCode);
-    Expect.equals(getter1(array[i]).hashCode, getter2(array[i]).hashCode);
-    Expect.equals(getter2(array[i]).hashCode, getter1(array[i]).hashCode);
-    Expect.equals(getter2(array[i]).hashCode, getter2(array[i]).hashCode);
-
-    for (int j = 0; j < array.length; j++) {
-      if (i == j) continue;
-
-      Expect.notEquals(getter1(array[i]), getter1(array[j]));
-      Expect.notEquals(getter1(array[i]), getter2(array[j]));
-      Expect.notEquals(getter2(array[i]), getter1(array[j]));
-      Expect.notEquals(getter2(array[i]), getter2(array[j]));
-    }
-  }
-}
diff --git a/tests/web_2/bounded_type_literal_test.dart b/tests/web_2/bounded_type_literal_test.dart
deleted file mode 100644
index c5683d62ca5..00000000000
--- a/tests/web_2/bounded_type_literal_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-class Foo<T extends num> {}
-
-main() {
-  var a = new Foo();
-  var b = Foo;
-  Expect.equals(a.runtimeType, b);
-
-  var runtimeTypeToString = "${a.runtimeType}";
-  var typeLiteralToString = "${b}";
-  Expect.equals(runtimeTypeToString, typeLiteralToString);
-
-  if ('$Object' == 'Object') {
-    // `true` if non-minified.
-    Expect.equals("Foo<num>", runtimeTypeToString);
-    Expect.equals("Foo<num>", typeLiteralToString);
-  }
-  print(runtimeTypeToString);
-  print(typeLiteralToString);
-}
diff --git a/tests/web_2/bounds_check1a_test.dart b/tests/web_2/bounds_check1a_test.dart
deleted file mode 100644
index 781f088eb9c..00000000000
--- a/tests/web_2/bounds_check1a_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-main() {
-  dynamic c = new Class();
-  c.method();
-}
-
-class Class {
-  @pragma('dart2js:noInline')
-  method<T extends num>() => null;
-}
diff --git a/tests/web_2/bounds_check1b_test.dart b/tests/web_2/bounds_check1b_test.dart
deleted file mode 100644
index 739449e25e7..00000000000
--- a/tests/web_2/bounds_check1b_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-main() {
-  dynamic c = new Class();
-  c.method();
-}
-
-class Class {
-  method<T extends num>() => null;
-}
diff --git a/tests/web_2/bounds_check2a_test.dart b/tests/web_2/bounds_check2a_test.dart
deleted file mode 100644
index f2000f66378..00000000000
--- a/tests/web_2/bounds_check2a_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-main() {
-  dynamic c = new Class<int>();
-  c.method();
-}
-
-class Class<T> {
-  @pragma('dart2js:noInline')
-  method<S extends T>() => null;
-}
diff --git a/tests/web_2/bounds_check2b_test.dart b/tests/web_2/bounds_check2b_test.dart
deleted file mode 100644
index 373fa7c78df..00000000000
--- a/tests/web_2/bounds_check2b_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-main() {
-  dynamic c = new Class<int>();
-  c.method();
-}
-
-class Class<T> {
-  method<S extends T>() => null;
-}
diff --git a/tests/web_2/bounds_check3a_test.dart b/tests/web_2/bounds_check3a_test.dart
deleted file mode 100644
index 64c9a524de1..00000000000
--- a/tests/web_2/bounds_check3a_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-main() {
-  dynamic c = new Class();
-  Expect.equals(c.method(), num);
-}
-
-class Class {
-  @pragma('dart2js:noInline')
-  method<S extends num>() => S;
-}
diff --git a/tests/web_2/bounds_check3b_test.dart b/tests/web_2/bounds_check3b_test.dart
deleted file mode 100644
index fba0553e3d5..00000000000
--- a/tests/web_2/bounds_check3b_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-main() {
-  dynamic c = new Class();
-  Expect.equals(c.method(), num);
-}
-
-class Class {
-  method<S extends num>() => S;
-}
diff --git a/tests/web_2/bounds_check3c_test.dart b/tests/web_2/bounds_check3c_test.dart
deleted file mode 100644
index 54a5ddbce06..00000000000
--- a/tests/web_2/bounds_check3c_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-main() {
-  dynamic c = new Class();
-  Expect.equals(c.method(), num);
-}
-
-class Class {
-  @pragma('dart2js:noInline')
-  method<S extends num>() => S;
-}
diff --git a/tests/web_2/bounds_check4a_test.dart b/tests/web_2/bounds_check4a_test.dart
deleted file mode 100644
index 7b8af1d05ca..00000000000
--- a/tests/web_2/bounds_check4a_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-main() {
-  dynamic c = new Class<int>();
-  Expect.equals(c.method(), int);
-}
-
-class Class<T> {
-  @pragma('dart2js:noInline')
-  method<S extends T>() => S;
-}
diff --git a/tests/web_2/bounds_check4b_test.dart b/tests/web_2/bounds_check4b_test.dart
deleted file mode 100644
index 06d3056a5ae..00000000000
--- a/tests/web_2/bounds_check4b_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-main() {
-  dynamic c = new Class<int>();
-  Expect.equals(c.method(), int);
-}
-
-class Class<T> {
-  method<S extends T>() => S;
-}
diff --git a/tests/web_2/bounds_check_test.dart b/tests/web_2/bounds_check_test.dart
deleted file mode 100644
index 50ed0f1f85e..00000000000
--- a/tests/web_2/bounds_check_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-main() {
-  var a = [0, 1];
-  a[-1]; //                         //# 01: runtime error
-  a[-1] = 4; //                     //# 02: runtime error
-  a[2]; //                          //# 03: runtime error
-  a[2] = 4; //                      //# 04: runtime error
-  checkIndex(a, -1); //             //# 05: runtime error
-  checkIndexedAssignment(a, -1); // //# 06: runtime error
-  checkIndex(a, 2); //              //# 07: runtime error
-  checkIndexedAssignment(a, 2); //  //# 08: runtime error
-  checkIndex(a, 0);
-  checkIndexedAssignment(a, 0);
-}
-
-checkIndex(a, b) {
-  a[b];
-}
-
-checkIndexedAssignment(a, b) {
-  a[b] = 1;
-}
diff --git a/tests/web_2/break_test.dart b/tests/web_2/break_test.dart
deleted file mode 100644
index 8758d05892b..00000000000
--- a/tests/web_2/break_test.dart
+++ /dev/null
@@ -1,166 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-break1(int x, int y, int ew, int ez) {
-  int w = 1;
-  int z = 0;
-  bk1:
-  if (x == 2) {
-    z = 1;
-    if (y == 3) {
-      w = 2;
-      break bk1;
-    } else {
-      w = 3;
-    }
-  } else {
-    z = 2;
-    if (y == 3) {
-      w = 4;
-    } else {
-      w = 5;
-      break bk1;
-    }
-    break bk1;
-  }
-  Expect.equals(ew, w);
-  Expect.equals(ez, z);
-}
-
-break2(int x, int y, int ew, int ez) {
-  int w = 1;
-  int z = 0;
-  bk1:
-  do {
-    if (x == 2) {
-      z = 1;
-      if (y == 3) {
-        w = 2;
-        break bk1;
-      } else {
-        w = 3;
-      }
-    } else {
-      z = 2;
-      if (y == 3) {
-        w = 4;
-      } else {
-        w = 5;
-        break bk1;
-      }
-      break bk1;
-    }
-  } while (false);
-  Expect.equals(ew, w);
-  Expect.equals(ez, z);
-}
-
-break3(int x, int y, int ew, int ez) {
-  int w = 1;
-  int z = 0;
-  do {
-    if (x == 2) {
-      z = 1;
-      if (y == 3) {
-        w = 2;
-        break;
-      } else {
-        w = 3;
-      }
-    } else {
-      z = 2;
-      if (y == 3) {
-        w = 4;
-      } else {
-        w = 5;
-        break;
-      }
-      break;
-    }
-  } while (false);
-  Expect.equals(ew, w);
-  Expect.equals(ez, z);
-}
-
-obscureBreaks(x) {
-  bool result = true;
-  bar:
-  do {
-    if (x == 1) {
-      foo:
-      break;
-    } else if (x == 2) {
-      foo:
-      break bar;
-    } else if (x == 3) {
-      bar:
-      break;
-    } else if (x == 4) {
-      break bar;
-    } else {
-      result = false;
-    }
-  } while (false);
-  return result;
-}
-
-ifBreaks(x, y) {
-  int res = 2;
-  foo:
-  if (x == 1)
-    bar:
-    {
-      if (y == 2) {
-        res = 4;
-        break foo;
-      } else if (y == 3) {
-        res = 5;
-        break bar;
-      }
-      res = 3;
-    }
-  else
-    baz:
-    {
-      if (y == 2) {
-        res = 7;
-        break foo;
-      } else if (y == 3) {
-        res = 8;
-        break baz;
-      }
-      res = 6;
-    }
-  return res;
-}
-
-main() {
-  break1(2, 3, 2, 1);
-  break1(2, 4, 3, 1);
-  break1(3, 3, 4, 2);
-  break1(3, 4, 5, 2);
-  break2(2, 3, 2, 1);
-  break2(2, 4, 3, 1);
-  break2(3, 3, 4, 2);
-  break2(3, 4, 5, 2);
-  break3(2, 3, 2, 1);
-  break3(2, 4, 3, 1);
-  break3(3, 3, 4, 2);
-  break3(3, 4, 5, 2);
-  Expect.isTrue(obscureBreaks(1), "1");
-  Expect.isTrue(obscureBreaks(2), "2");
-  Expect.isTrue(obscureBreaks(3), "3");
-  Expect.isTrue(obscureBreaks(4), "4");
-  Expect.isFalse(obscureBreaks(5), "5");
-  Expect.equals(3, ifBreaks(1, 4));
-  Expect.equals(4, ifBreaks(1, 2));
-  Expect.equals(5, ifBreaks(1, 3));
-  Expect.equals(6, ifBreaks(2, 4));
-  Expect.equals(7, ifBreaks(2, 2));
-  Expect.equals(8, ifBreaks(2, 3));
-}
diff --git a/tests/web_2/call_is_function_test.dart b/tests/web_2/call_is_function_test.dart
deleted file mode 100644
index d824b04804a..00000000000
--- a/tests/web_2/call_is_function_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class A {
-  call() {}
-}
-
-@pragma('dart2js:noInline')
-test(o) => o is Function;
-
-main() {
-  Expect.isFalse(test(new A()));
-  Expect.isFalse(test(null));
-}
diff --git a/tests/web_2/call_signature_test.dart b/tests/web_2/call_signature_test.dart
deleted file mode 100644
index 014d1365b63..00000000000
--- a/tests/web_2/call_signature_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test. Crash occurred when trying to create a signature function
-// for the non-live 'call' method on the live class 'A'.
-
-import 'package:expect/expect.dart';
-
-class A<T> {
-  /// Weird signature to ensure it isn't match by any call selector.
-  call(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, {T t}) {}
-}
-
-class B<T> {
-  @pragma('dart2js:noInline')
-  m(f) => f is Function(T);
-}
-
-@pragma('dart2js:noInline')
-create() => new B<A<int>>();
-
-main() {
-  var o = create();
-  new A();
-  Expect.isTrue(o.m((A<int> i) => i));
-  Expect.isFalse(o.m((A<String> i) => i));
-}
diff --git a/tests/web_2/call_uninlined_test.dart b/tests/web_2/call_uninlined_test.dart
deleted file mode 100644
index 3cdeaa75721..00000000000
--- a/tests/web_2/call_uninlined_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class H {
-  call() {}
-}
-
-main() {
-  print(new H());
-  method();
-}
-
-method() {
-  local1() {}
-
-  local1(); // This call wrongfully triggers enqueueing of H.call in codegen.
-}
diff --git a/tests/web_2/cfe_instance_constant_test.dart b/tests/web_2/cfe_instance_constant_test.dart
deleted file mode 100644
index 187b91a6c1e..00000000000
--- a/tests/web_2/cfe_instance_constant_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for CFE constant evaluation. The evaluation of [Class9.field]
-// assumed that its initializer did not hold an unevaluated constant.
-
-import 'package:expect/expect.dart';
-
-const dynamic zero_ = const bool.fromEnvironment("x") ? null : 0;
-
-class Class9 {
-  final field = zero_;
-  const Class9();
-}
-
-const c0 = const bool.fromEnvironment("x") ? null : const Class9();
-
-main() {
-  Expect.equals(0, c0.field);
-}
diff --git a/tests/web_2/checked_setter_test.dart b/tests/web_2/checked_setter_test.dart
deleted file mode 100644
index 4b0e323e9ce..00000000000
--- a/tests/web_2/checked_setter_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class A {
-  String field;
-}
-
-class B {
-  int field;
-}
-
-@pragma('dart2js:noInline')
-assign(d) {
-  d.field = 0;
-}
-
-main() {
-  Expect.throws(() => assign(new A()));
-  assign(new B()); //# 01: ok
-}
diff --git a/tests/web_2/class_hierarchy_extends_clause_test.dart b/tests/web_2/class_hierarchy_extends_clause_test.dart
deleted file mode 100644
index ef71e5787c6..00000000000
--- a/tests/web_2/class_hierarchy_extends_clause_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-import 'package:expect/expect.dart';
-
-class A {}
-
-abstract class B<T> {
-  final Box<T> x = new Box<T>();
-}
-
-class C extends B<A> {}
-
-class Box<T> {
-  Box();
-
-  bool doCheck(Object o) => o is T;
-}
-
-main() {
-  var c = new C();
-  Expect.isFalse(c.x.doCheck(3));
-}
diff --git a/tests/web_2/closure2_test.dart b/tests/web_2/closure2_test.dart
deleted file mode 100644
index 22a577fdd5d..00000000000
--- a/tests/web_2/closure2_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-closure0() {
-  // A closure will be implemented as a class. Make sure everything is set up
-  // correctly when no other class is generated. In particular we need
-  // the Dart-Object class to be generated.
-  var f = () => 42;
-  Expect.equals(42, f());
-}
-
-main() {
-  closure0();
-}
diff --git a/tests/web_2/closure3_test.dart b/tests/web_2/closure3_test.dart
deleted file mode 100644
index fcd846a8b6d..00000000000
--- a/tests/web_2/closure3_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-main() {
-  var f = ({a: 3, b: 8}) {
-    return a + b;
-  };
-  Expect.equals(11, f());
-  Expect.equals(499, f(a: 3, b: 496));
-  Expect.equals(42, f(a: 20, b: 22));
-  Expect.equals(99, f(b: 66, a: 33));
-}
diff --git a/tests/web_2/closure4_test.dart b/tests/web_2/closure4_test.dart
deleted file mode 100644
index 28240799809..00000000000
--- a/tests/web_2/closure4_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-closure0() {
-  var fib;
-  fib = (i) {
-    if (i < 2) return i;
-    return fib(i - 1) + fib(i - 2);
-  };
-  Expect.equals(5, fib(5));
-}
-
-closure1() {
-  var decr1 = 0;
-  var decr2 = 0;
-  var fib;
-  fib = (i) {
-    if (i < 2) return i;
-    return fib(i - decr1) + fib(i - decr2);
-  };
-  decr1++;
-  decr2 += 2;
-  Expect.equals(5, fib(5));
-}
-
-closure2() {
-  var f;
-  f = (doReturnClosure) {
-    if (doReturnClosure) {
-      return () => f(false);
-    } else {
-      return 499;
-    }
-  };
-  var g = f(true);
-  Expect.equals(499, g());
-}
-
-main() {
-  closure0();
-  closure1();
-  closure2();
-}
diff --git a/tests/web_2/closure5_test.dart b/tests/web_2/closure5_test.dart
deleted file mode 100644
index b241a97989b..00000000000
--- a/tests/web_2/closure5_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {
-  foo() => 499;
-  bar({a: 1, b: 7, c: 99}) => a + b + c;
-  toto() => bar;
-  gee(f) => f(toto);
-}
-
-main() {
-  var a = new A();
-  var foo = a.foo;
-  Expect.equals(499, foo());
-  var bar = a.bar;
-  Expect.equals(107, bar());
-  Expect.equals(3, bar(a: 1, b: 1, c: 1));
-  Expect.equals(10, bar(c: 2));
-  var toto = a.toto;
-  var gee = a.gee;
-  Expect.equals(-10, gee((f) => f()(a: -1, b: -2, c: -7)));
-}
diff --git a/tests/web_2/closure6_test.dart b/tests/web_2/closure6_test.dart
deleted file mode 100644
index 168c570c497..00000000000
--- a/tests/web_2/closure6_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {
-  var foo;
-  bar() => foo(3, 99);
-  gee(f) => foo(fun: f);
-
-  get foo2 => foo;
-  bar2() => foo2(3, 99);
-  gee2(f) => foo2(fun: f);
-}
-
-main() {
-  var a = new A();
-  a.foo = () => 499;
-  Expect.equals(499, a.foo());
-  a.foo = (x, y) => x + y;
-  Expect.equals(102, a.bar());
-  a.foo = ({fun: null}) => fun(41);
-  Expect.equals(42, a.gee((x) => x + 1));
-
-  a.foo = () => 499;
-  Expect.equals(499, a.foo2());
-  a.foo = (x, y) => x + y;
-  Expect.equals(102, a.bar2());
-  a.foo = ({fun: null}) => fun(41);
-  Expect.equals(42, a.gee2((x) => x + 1));
-}
diff --git a/tests/web_2/closure7_test.dart b/tests/web_2/closure7_test.dart
deleted file mode 100644
index 8d8fc62c65a..00000000000
--- a/tests/web_2/closure7_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-var foo;
-bar() => foo(3, 99);
-gee(f) => foo(fun: f);
-
-get foo2 => foo;
-bar2() => foo2(3, 99);
-gee2(f) => foo2(fun: f);
-
-globalTest() {
-  foo = () => 499;
-  Expect.equals(499, foo());
-  foo = (x, y) => x + y;
-  Expect.equals(102, bar());
-  foo = ({fun: null}) => fun(41);
-  Expect.equals(42, gee((x) => x + 1));
-
-  foo = () => 499;
-  Expect.equals(499, foo2());
-  foo = (x, y) => x + y;
-  Expect.equals(102, bar2());
-  foo = ({fun: null}) => fun(41);
-  Expect.equals(42, gee2((x) => x + 1));
-}
-
-class A {
-  static var foo;
-  static bar() => foo(3, 99);
-  static gee(f) => foo(fun: f);
-
-  static get foo2 => foo;
-  static bar2() => foo2(3, 99);
-  static gee2(f) => foo2(fun: f);
-}
-
-staticTest() {
-  A.foo = () => 499;
-  Expect.equals(499, A.foo());
-  A.foo = (x, y) => x + y;
-  Expect.equals(102, A.bar());
-  A.foo = ({fun: null}) => fun(41);
-  Expect.equals(42, A.gee((x) => x + 1));
-
-  A.foo = () => 499;
-  Expect.equals(499, A.foo2());
-  A.foo = (x, y) => x + y;
-  Expect.equals(102, A.bar2());
-  A.foo = ({fun: null}) => fun(41);
-  Expect.equals(42, A.gee2((x) => x + 1));
-}
-
-main() {
-  globalTest();
-  staticTest();
-}
diff --git a/tests/web_2/closure_capture2_test.dart b/tests/web_2/closure_capture2_test.dart
deleted file mode 100644
index 3a11798de32..00000000000
--- a/tests/web_2/closure_capture2_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-closure0() {
-  // f and g will both capture a variable named 'x'. If we use the original
-  // name in the (shared) box then there will be troubles.
-  var f;
-  var g;
-  {
-    var x = 499;
-    f = () {
-      return x;
-    };
-    x++;
-  }
-  {
-    var x = 42;
-    g = () {
-      return x;
-    };
-    x++;
-  }
-  Expect.equals(500, f());
-  Expect.equals(43, g());
-}
-
-closure1() {
-  // f captures variable $0 which once could yield to troubles with HForeign if
-  // we did not mangle correctly.
-  var $1 = 499;
-  var f = () {
-    return $1;
-  };
-  $1++;
-  Expect.equals(500, f());
-}
-
-main() {
-  closure0();
-  closure1();
-}
diff --git a/tests/web_2/closure_capture3_test.dart b/tests/web_2/closure_capture3_test.dart
deleted file mode 100644
index 63b10c52cae..00000000000
--- a/tests/web_2/closure_capture3_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class Closure {
-  var x;
-  Closure(val) : this.x = val;
-
-  foo() {
-    return () {
-      return x;
-    };
-  }
-
-  bar() {
-    return () {
-      return toto();
-    };
-  }
-
-  toto() {
-    return x + 1;
-  }
-
-  nestedClosure() {
-    var f = () {
-      return x;
-    };
-    return () {
-      return f() + 2;
-    };
-  }
-}
-
-main() {
-  var c = new Closure(499);
-  var f = c.foo();
-  Expect.equals(499, f());
-  Expect.equals(500, c.bar()());
-  Expect.equals(501, c.nestedClosure()());
-}
diff --git a/tests/web_2/closure_capture4_test.dart b/tests/web_2/closure_capture4_test.dart
deleted file mode 100644
index be6653339b8..00000000000
--- a/tests/web_2/closure_capture4_test.dart
+++ /dev/null
@@ -1,146 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-closure0() {
-  var input = [1, 2, 3];
-  var fs = [];
-  for (var x in input) {
-    fs.add(() {
-      return x;
-    });
-  }
-  Expect.equals(3, fs.length);
-  Expect.equals(1, fs[0]());
-  Expect.equals(2, fs[1]());
-  Expect.equals(3, fs[2]());
-}
-
-closure1() {
-  var input = [1, 2, 3];
-  var fs = [];
-  for (var x in input) {
-    fs.add(() {
-      return x;
-    });
-    x++;
-  }
-  Expect.equals(3, fs.length);
-  Expect.equals(2, fs[0]());
-  Expect.equals(3, fs[1]());
-  Expect.equals(4, fs[2]());
-}
-
-closure2() {
-  var input = [1, 2, 3];
-  var fs = [];
-  for (var i = 0; i < input.length; i++) {
-    var j = i;
-    fs.add(() {
-      return input[j];
-    });
-  }
-  Expect.equals(3, fs.length);
-  Expect.equals(1, fs[0]());
-  Expect.equals(2, fs[1]());
-  Expect.equals(3, fs[2]());
-}
-
-closure3() {
-  var input = [1, 2, 3];
-  var fs = [];
-  for (var i = 0; i < input.length; i++) {
-    var x = input[i];
-    fs.add(() {
-      return x;
-    });
-    x++;
-  }
-  Expect.equals(3, fs.length);
-  Expect.equals(2, fs[0]());
-  Expect.equals(3, fs[1]());
-  Expect.equals(4, fs[2]());
-}
-
-closure4() {
-  var input = [1, 2, 3];
-  var fs = [];
-  var x;
-  for (var i = 0; i < input.length; i++) {
-    x = input[i];
-    fs.add(() {
-      return x;
-    });
-    x++;
-  }
-  Expect.equals(3, fs.length);
-  Expect.equals(4, fs[0]());
-  Expect.equals(4, fs[1]());
-  Expect.equals(4, fs[2]());
-}
-
-closure5() {
-  var input = [1, 2, 3];
-  var fs = [];
-  var i = 0;
-  do {
-    var x = input[i];
-    fs.add(() {
-      return x;
-    });
-  } while (++i < input.length);
-  Expect.equals(3, fs.length);
-  Expect.equals(1, fs[0]());
-  Expect.equals(2, fs[1]());
-  Expect.equals(3, fs[2]());
-}
-
-closure6() {
-  var input = [1, 2, 3];
-  var fs = [];
-  var i = 0;
-  do {
-    var x = input[i];
-    fs.add(() {
-      return x;
-    });
-    x++;
-  } while (++i < input.length);
-  Expect.equals(3, fs.length);
-  Expect.equals(2, fs[0]());
-  Expect.equals(3, fs[1]());
-  Expect.equals(4, fs[2]());
-}
-
-closure7() {
-  var input = [1, 2, 3];
-  var fs = [];
-  var i = 0;
-  while (i < input.length) {
-    var x = input[i];
-    fs.add(() {
-      return x;
-    });
-    x++;
-    i++;
-  }
-  Expect.equals(3, fs.length);
-  Expect.equals(2, fs[0]());
-  Expect.equals(3, fs[1]());
-  Expect.equals(4, fs[2]());
-}
-
-main() {
-  closure0();
-  closure1();
-  closure2();
-  closure3();
-  closure4();
-  closure5();
-  closure6();
-  closure7();
-}
diff --git a/tests/web_2/closure_capture5_test.dart b/tests/web_2/closure_capture5_test.dart
deleted file mode 100644
index f01d65563f4..00000000000
--- a/tests/web_2/closure_capture5_test.dart
+++ /dev/null
@@ -1,84 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-closure0() {
-  var fs = [];
-  for (var x = 1; x <= 3; x++) {
-    fs.add(() {
-      return x;
-    });
-  }
-  Expect.equals(3, fs.length);
-  Expect.equals(1, fs[0]());
-  Expect.equals(2, fs[1]());
-  Expect.equals(3, fs[2]());
-}
-
-closure1() {
-  var fs = [];
-  for (var x = 0; x < 6; x++) {
-    fs.add(() {
-      return x;
-    });
-    x++;
-  }
-  Expect.equals(3, fs.length);
-  Expect.equals(1, fs[0]());
-  Expect.equals(3, fs[1]());
-  Expect.equals(5, fs[2]());
-}
-
-closure2() {
-  var input = [1, 2, 3];
-  var fs = [];
-  for (var i = 0; i < input.length; i++) {
-    fs.add(() {
-      return input[i];
-    });
-  }
-  Expect.equals(3, fs.length);
-  Expect.equals(1, fs[0]());
-  Expect.equals(2, fs[1]());
-  Expect.equals(3, fs[2]());
-}
-
-closure3() {
-  var fs = [];
-  for (var i = 0;
-      i < 3;
-      (() {
-    fs.add(() => i);
-    i++;
-  })()) {
-    i++;
-  }
-  Expect.equals(2, fs.length);
-  Expect.equals(3, fs[0]());
-  Expect.equals(4, fs[1]());
-}
-
-closure4() {
-  var g;
-  for (var i = 0;
-      (() {
-    g = () => i;
-    return false;
-  })();
-      i++) {
-    Expect.equals(false, true);
-  }
-  Expect.equals(0, g());
-}
-
-main() {
-  closure0();
-  closure1();
-  closure2();
-  closure3();
-  closure4();
-}
diff --git a/tests/web_2/closure_capture6_test.dart b/tests/web_2/closure_capture6_test.dart
deleted file mode 100644
index 547d9e70301..00000000000
--- a/tests/web_2/closure_capture6_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-// Simple test for free variable in two nested scopes.
-
-captureTwiceNested(x) {
-  // 'x' value captured at two levels.
-  return () => [x, () => x + 1];
-}
-
-main() {
-  var a = captureTwiceNested(1);
-  Expect.equals(1, a()[0]);
-  Expect.equals(2, a()[1]());
-}
diff --git a/tests/web_2/closure_capture7_test.dart b/tests/web_2/closure_capture7_test.dart
deleted file mode 100644
index 5ec52d49232..00000000000
--- a/tests/web_2/closure_capture7_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-class A<T> {
-  List<List> xs;
-
-  void foo() {
-    // the inner closure only needs to capture 'this' if
-    // `A` needs runtime type information.
-    xs.map((x) => x.map((a) => a as T));
-  }
-}
-
-main() {
-  var a = new A<int>();
-  a.xs = [
-    [1, 2, 3],
-    [4, 5, 6]
-  ];
-  // just check that this doesn't crash
-  a.foo();
-}
diff --git a/tests/web_2/closure_capture_test.dart b/tests/web_2/closure_capture_test.dart
deleted file mode 100644
index acea02695be..00000000000
--- a/tests/web_2/closure_capture_test.dart
+++ /dev/null
@@ -1,113 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-closure0() {
-  var x = 499;
-  var f = () {
-    return x;
-  };
-  Expect.equals(499, f());
-}
-
-class A {
-  closure1() {
-    var x = 499;
-    var f = () {
-      return x;
-    };
-    Expect.equals(499, f());
-  }
-}
-
-applyFun(f) {
-  return f();
-}
-
-closure2() {
-  var x = 499;
-  Expect.equals(499, applyFun(() {
-    return x;
-  }));
-}
-
-closure3() {
-  var y = 400;
-  var f = (x) {
-    return y + x;
-  };
-  Expect.equals(499, f(99));
-}
-
-applyFun2(f) {
-  return f(400, 90);
-}
-
-closure4() {
-  var z = 9;
-  Expect.equals(499, applyFun2((x, y) {
-    return x + y + z;
-  }));
-}
-
-closure5() {
-  var x = 498;
-  var f = () {
-    return x;
-  };
-  x++;
-  Expect.equals(499, f());
-}
-
-class A2 {
-  closure6() {
-    var x = 498;
-    var f = () {
-      return x;
-    };
-    x++;
-    Expect.equals(499, f());
-  }
-}
-
-closure7() {
-  var x = 498;
-  var f = () {
-    return x;
-  };
-  x++;
-  Expect.equals(499, applyFun(f));
-}
-
-closure8() {
-  var y = 399;
-  var f = (x) {
-    return y + x;
-  };
-  y++;
-  Expect.equals(499, f(99));
-}
-
-closure9() {
-  var z = 9;
-  Expect.equals(499, applyFun2((x, y) {
-    return x + y + z;
-  }));
-}
-
-main() {
-  closure0();
-  new A().closure1();
-  closure2();
-  closure3();
-  closure4();
-  closure5();
-  new A2().closure6();
-  closure7();
-  closure8();
-  closure9();
-}
diff --git a/tests/web_2/closure_signature_unneeded_test.dart b/tests/web_2/closure_signature_unneeded_test.dart
deleted file mode 100644
index 037743a0cd3..00000000000
--- a/tests/web_2/closure_signature_unneeded_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class A<T> {
-  @pragma('dart2js:noInline')
-  m() {
-    return (T t, String s) {};
-  }
-}
-
-@pragma('dart2js:noInline')
-test(o) => o is void Function(int);
-
-main() {
-  Expect.isFalse(test(new A<int>().m()));
-}
diff --git a/tests/web_2/closure_test.dart b/tests/web_2/closure_test.dart
deleted file mode 100644
index c3f144895ed..00000000000
--- a/tests/web_2/closure_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-closure0() {
-  var f = () {
-    return 499;
-  };
-  Expect.equals(499, f());
-}
-
-class A {
-  closure1() {
-    var f = () {
-      return 499;
-    };
-    Expect.equals(499, f());
-  }
-}
-
-applyFun(f) {
-  return f();
-}
-
-closure2() {
-  Expect.equals(499, applyFun(() {
-    return 499;
-  }));
-}
-
-closure3() {
-  var f = (x) {
-    return 400 + x;
-  };
-  Expect.equals(499, f(99));
-}
-
-applyFun2(f) {
-  return f(400, 99);
-}
-
-closure4() {
-  Expect.equals(499, applyFun2((x, y) {
-    return x + y;
-  }));
-}
-
-main() {
-  closure0();
-  new A().closure1();
-  closure2();
-  closure3();
-  closure4();
-}
diff --git a/tests/web_2/code_motion_exception_test.dart b/tests/web_2/code_motion_exception_test.dart
deleted file mode 100644
index c635ddda273..00000000000
--- a/tests/web_2/code_motion_exception_test.dart
+++ /dev/null
@@ -1,116 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--no-minify
-
-import "package:expect/expect.dart";
-
-// Test for correct order of exceptions in code with checks that could be moved
-// merged from successors into a dominator.
-
-get never => new DateTime.now().millisecondsSinceEpoch == 42;
-get always => new DateTime.now().millisecondsSinceEpoch > 42;
-
-// gA and gB have type [null|num], so they compile to a receiver check, and
-// argument check and then the operation.
-var gA; // [null|num]
-var gB; // [null|num]
-
-foo1(a, b) {
-  // The checks on a and b are not equivalent, so can't be merged.
-  if (never) {
-    return a ^ b;
-  } else {
-    return b ^ a;
-  }
-}
-
-call1() {
-  return foo1(gA, gB);
-}
-
-test1() {
-  gA = 1;
-  gB = 2;
-  Expect.equals(3, call1());
-
-  gA = null;
-  gB = null;
-  Expect.throws(call1, (e) => e is NoSuchMethodError, 'foo1($gA, $gB) NSME');
-
-  gA = 1;
-  gB = null;
-  Expect.throws(call1, (e) => e is NoSuchMethodError, 'foo1($gA, $gB) NSME');
-
-  gA = null;
-  gB = 2;
-  Expect.throws(call1, (e) => e is ArgumentError, 'foo1($gA, $gB) AE');
-}
-
-foo2a(a, b) {
-  // The common receiver check on [a] cannot be merged because the operation
-  // (selector) is different.
-  // The common argument check on [b] cannot be merged because it must happen
-  // after the receiver check.
-  if (never) {
-    return a ^ b;
-  } else {
-    return a & b;
-  }
-}
-
-foo2b(a, b) {
-  // Same a foo2a except which branch dynamically taken.
-  if (always) {
-    return a ^ b;
-  } else {
-    return a & b;
-  }
-}
-
-call2a() {
-  return foo2a(gA, gB);
-}
-
-call2b() {
-  return foo2b(gA, gB);
-}
-
-checkNSME(text) {
-  return (e) {
-    Expect.isTrue(e is NoSuchMethodError,
-        'expecting NoSuchMethodError, got "${e.runtimeType}"');
-    Expect.isTrue('$e'.contains(text), '"$e".contains("$text")');
-    return e is NoSuchMethodError;
-  };
-}
-
-test2() {
-  gA = 1;
-  gB = 2;
-  Expect.equals(0, call2a());
-  Expect.equals(3, call2b());
-
-  gA = null;
-  gB = null;
-  Expect.throws(call2a, checkNSME(r'Null check'), 'foo2($gA, $gB) NSME');
-  Expect.throws(call2b, checkNSME(r'Null check'), 'foo2($gA, $gB) NSME');
-
-  gA = 1;
-  gB = null;
-  Expect.throws(call2a, (e) => e is ArgumentError, 'foo2($gA, $gB) AE');
-  Expect.throws(call2b, (e) => e is ArgumentError, 'foo2($gA, $gB) AE');
-
-  gA = null;
-  gB = 2;
-  Expect.throws(call2a, checkNSME(r'Null check'), 'foo2($gA, $gB) NSME');
-  Expect.throws(call2b, checkNSME(r'Null check'), 'foo2($gA, $gB) NSME');
-}
-
-main() {
-  test1();
-  test2();
-}
diff --git a/tests/web_2/compile_time_constant4_test.dart b/tests/web_2/compile_time_constant4_test.dart
deleted file mode 100644
index f2497bf7e40..00000000000
--- a/tests/web_2/compile_time_constant4_test.dart
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-const x = "foo";
-const y = "foo";
-const g1 = x + "bar";
-const g2 = x
-  + null //  //# 01: compile-time error
-    ;
-const g3 = x
-  + 499 //  //# 02: compile-time error
-    ;
-const g4 = x
-  + 3.3 //  //# 03: compile-time error
-    ;
-const g5 = x
-  + true //  //# 04: compile-time error
-    ;
-const g6 = x
-  + false //  //# 05: compile-time error
-    ;
-const g7 = "foo"
-  + x[0] //  //# 06: compile-time error
-    ;
-const g8 = 1 + x.length;
-const g9 = x == y;
-
-use(x) => x;
-
-main() {
-  Expect.equals("foobar", g1);
-  Expect.isTrue(g9);
-  use(g1);
-  use(g2);
-  use(g3);
-  use(g4);
-  use(g5);
-  use(g6);
-  use(g7);
-  use(g8);
-}
diff --git a/tests/web_2/compound_operator_index_test.dart b/tests/web_2/compound_operator_index_test.dart
deleted file mode 100644
index 5b6c6eb17d4..00000000000
--- a/tests/web_2/compound_operator_index_test.dart
+++ /dev/null
@@ -1,78 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {
-  List<int> list;
-  A(int a, int b) : list = <int>[a, b];
-  operator [](index) => list[index];
-  operator []=(index, value) => list[index] = value;
-}
-
-class B {
-  int value;
-  List trace;
-  B(this.trace) : value = 100;
-  operator [](index) {
-    trace.add(-3);
-    trace.add(index);
-    trace.add(this.value);
-    this.value = this.value + 1;
-    return this;
-  }
-
-  operator []=(index, value) {
-    trace.add(-5);
-    trace.add(index);
-    trace.add(value.value);
-    this.value = this.value + 1;
-  }
-
-  operator +(int value) {
-    trace.add(-4);
-    trace.add(this.value);
-    trace.add(value);
-    this.value = this.value + 1;
-    return this;
-  }
-}
-
-B getB(trace) {
-  trace.add(-1);
-  return new B(trace);
-}
-
-int getIndex(trace) {
-  trace.add(-2);
-  return 42;
-}
-
-main() {
-  A a = new A(1, 2);
-  Expect.equals(1, a[0]);
-  Expect.equals(2, a[1]);
-
-  Expect.equals(1, a[0]++);
-  Expect.equals(2, a[0]);
-
-  Expect.equals(2, a[0]--);
-  Expect.equals(1, a[0]);
-
-  Expect.equals(0, --a[0]);
-  Expect.equals(0, a[0]);
-
-  Expect.equals(1, ++a[0]);
-  Expect.equals(1, a[0]);
-
-  a[0] += 2;
-  Expect.equals(3, a[0]);
-
-  List trace = [];
-  getB(trace)[getIndex(trace)] += 37;
-
-  Expect.listEquals([-1, -2, -3, 42, 100, -4, 101, 37, -5, 42, 102], trace);
-}
diff --git a/tests/web_2/conditional_rewrite_test.dart b/tests/web_2/conditional_rewrite_test.dart
deleted file mode 100644
index 936e03c0f90..00000000000
--- a/tests/web_2/conditional_rewrite_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-// Test that dart2js does not rewrite conditional into logical operators
-// in cases where it changes which falsy value is returned.
-
-posFalse(x, y) => x != null ? y : false;
-negFalse(x, y) => x != null ? !y : false;
-posNull(x, y) => x != null ? y : null;
-negNull(x, y) => x != null ? !y : null;
-
-main() {
-  Expect.equals(false, posFalse(null, false));
-  Expect.equals(false, negFalse(null, false));
-  Expect.equals(null, posNull(null, false));
-  Expect.equals(null, negNull(null, false));
-
-  Expect.equals(false, posFalse(null, true));
-  Expect.equals(false, negFalse(null, true));
-  Expect.equals(null, posNull(null, true));
-  Expect.equals(null, negNull(null, true));
-
-  Expect.equals(false, posFalse([], false));
-  Expect.equals(true, negFalse([], false));
-  Expect.equals(false, posNull([], false));
-  Expect.equals(true, negNull([], false));
-
-  Expect.equals(true, posFalse([], true));
-  Expect.equals(false, negFalse([], true));
-  Expect.equals(true, posNull([], true));
-  Expect.equals(false, negNull([], true));
-
-  if (isConditionCheckDisabled) {
-    Expect.equals(null, posFalse([], null));
-    Expect.equals(true, negFalse([], null));
-    Expect.equals(null, posNull([], null));
-    Expect.equals(true, negNull([], null));
-
-    var y = {};
-    Expect.identical(y, posFalse([], y));
-    Expect.equals(true, negFalse([], y));
-    Expect.identical(y, posNull([], y));
-    Expect.equals(true, negNull([], y));
-  }
-}
-
-bool get isConditionCheckDisabled {
-  bool b = null;
-  for (int i = 0; i < 3; i++) {
-    try {
-      b = !b;
-    } catch (e) {
-      return false;
-    }
-  }
-  return true;
-}
diff --git a/tests/web_2/conditional_send_test.dart b/tests/web_2/conditional_send_test.dart
deleted file mode 100644
index 86c29f0c622..00000000000
--- a/tests/web_2/conditional_send_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// SharedOptions=--enable-null-aware-operators
-import "package:expect/expect.dart";
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-class A {
-  int x;
-  m() => "a";
-}
-
-main(args) {
-  var a = confuse(true) ? null : new A();
-  a?.x = 3;
-  Expect.throws(() => a.m());
-}
diff --git a/tests/web_2/conditional_test.dart b/tests/web_2/conditional_test.dart
deleted file mode 100644
index 0cbbd7d02c7..00000000000
--- a/tests/web_2/conditional_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-getZero() {
-  return 0;
-}
-
-main() {
-  int i = getZero();
-  int c = i == 0 ? i-- : i++;
-  Expect.equals(-1, i);
-  Expect.equals(0, c);
-
-  int d = i == 0 ? i-- : i++;
-  Expect.equals(0, i);
-  Expect.equals(-1, d);
-
-  int e = i == 0 ? --i : ++i;
-  Expect.equals(-1, i);
-  Expect.equals(-1, e);
-}
diff --git a/tests/web_2/conflict_index_test.dart b/tests/web_2/conflict_index_test.dart
deleted file mode 100644
index e0ed5f06773..00000000000
--- a/tests/web_2/conflict_index_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-main() {
-  foo(true, [0]);
-  foo(false, "bar");
-}
-
-foo(check, listOrString) {
-  if (check) {
-    Expect.equals(0, listOrString[0]);
-    listOrString[0] = 1;
-    Expect.equals(1, listOrString[0]);
-  } else {
-    Expect.equals("foobar", "foo${listOrString}");
-  }
-}
diff --git a/tests/web_2/consistent_add_error_test.dart b/tests/web_2/consistent_add_error_test.dart
deleted file mode 100644
index 792fabd68cf..00000000000
--- a/tests/web_2/consistent_add_error_test.dart
+++ /dev/null
@@ -1,164 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-// Test that optimized '+' and slow path '+' produce the same error.
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-void check2(String name, name1, f1, name2, f2) {
-  Error trap(part, f) {
-    try {
-      f();
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('should throw: $name.$part');
-  }
-
-  var e1 = trap(name1, f1);
-  var e2 = trap(name2, f2);
-  var s1 = '$e1';
-  var s2 = '$e2';
-  Expect.equals(s1, s2, '\n  $name.$name1: "$s1"\n  $name.$name2: "$s2"\n');
-}
-
-void check(String name, f1, f2, [f3, f4, f5, f6, f7]) {
-  check2(name, 'f1', f1, 'f2', f2);
-  if (f3 != null) check2(name, 'f1', f1, 'f3', f3);
-  if (f4 != null) check2(name, 'f1', f1, 'f4', f4);
-  if (f5 != null) check2(name, 'f1', f1, 'f5', f5);
-  if (f6 != null) check2(name, 'f1', f1, 'f6', f6);
-  if (f7 != null) check2(name, 'f1', f1, 'f7', f7);
-}
-
-class IntPlusNull {
-  static f1() {
-    return confuse(1) + confuse(null);
-  }
-
-  static f2() {
-    return confuse(1) + null;
-  }
-
-  static f3() {
-    return (confuse(1) as int) + confuse(null);
-  }
-
-  static f4() {
-    return (confuse(1) as int) + null;
-  }
-
-  static f5() {
-    var a = confuse(true) ? 1 : 2; // Small int with unknown value.
-    return a + confuse(null);
-  }
-
-  static f6() {
-    var a = confuse(true) ? 1 : 2; // Small int with unknown value.
-    return a + null;
-  }
-
-  static f7() {
-    return 1 + null;
-  }
-
-  static test() {
-    check('IntPlusNull', f1, f2, f3, f4, f5, f6, f7);
-  }
-}
-
-class StringPlusNull {
-  static f1() {
-    return confuse('a') + confuse(null);
-  }
-
-  static f2() {
-    return confuse('a') + null;
-  }
-
-  static f3() {
-    return (confuse('a') as String) + confuse(null);
-  }
-
-  static f4() {
-    return (confuse('a') as String) + null;
-  }
-
-  static f5() {
-    var a = confuse(true) ? 'a' : 'bc';
-    return a + confuse(null);
-  }
-
-  static f6() {
-    var a = confuse(true) ? 'a' : 'bc';
-    return a + null;
-  }
-
-  static f7() {
-    return 'a' + null;
-  }
-
-  static test() {
-    check('StringPlusNull', f1, f2, f3, f4, f5, f6, f7);
-  }
-}
-
-class IntPlusString {
-  static f1() {
-    return confuse(1) + confuse('a');
-  }
-
-  static f2() {
-    return confuse(1) + 'a';
-  }
-
-  static f3() {
-    var a = confuse(true) ? 1 : 2; // Small int with unknown value.
-    return a + confuse('a');
-  }
-
-  static f4() {
-    return (confuse(1) as int) + confuse('a');
-  }
-
-  static test() {
-    check('IntPlusString', f1, f2, f3, f4);
-  }
-}
-
-class StringPlusInt {
-  static f1() {
-    return confuse('a') + confuse(1);
-  }
-
-  static f2() {
-    return confuse('a') + 1;
-  }
-
-  static f3() {
-    return (confuse('a') as String) + confuse(1);
-  }
-
-  static f4() {
-    var a = confuse(true) ? 'a' : 'bc';
-    return a + confuse(1);
-  }
-
-  static test() {
-    check('StringPlusInt', f1, f2, f3, f4);
-  }
-}
-
-main() {
-  IntPlusNull.test();
-  StringPlusNull.test();
-  IntPlusString.test();
-  StringPlusInt.test();
-}
diff --git a/tests/web_2/consistent_codeUnitAt_error_test.dart b/tests/web_2/consistent_codeUnitAt_error_test.dart
deleted file mode 100644
index e43c0c47a23..00000000000
--- a/tests/web_2/consistent_codeUnitAt_error_test.dart
+++ /dev/null
@@ -1,134 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-// Test that optimized codeUnitAt and slow path codeUnitAt produce the same
-// error.
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-void check2(String name, name1, f1, name2, f2) {
-  Error trap(part, f) {
-    try {
-      f();
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('should throw: $name.$part');
-  }
-
-  var e1 = trap(name1, f1);
-  var e2 = trap(name2, f2);
-  var s1 = '$e1';
-  var s2 = '$e2';
-  Expect.equals(s1, s2, '\n  $name.$name1: "$s1"\n  $name.$name2: "$s2"\n');
-}
-
-void check(String name, f1, f2, [f3, f4]) {
-  check2(name, 'f1', f1, 'f2', f2);
-  if (f3 != null) check2(name, 'f1', f1, 'f3', f3);
-  if (f4 != null) check2(name, 'f1', f1, 'f4', f4);
-}
-
-class TooHigh {
-  static f1() {
-    return confuse('AB').codeUnitAt(3); // dynamic receiver.
-  }
-
-  static f2() {
-    var a = confuse(true) ? 'AB' : 'ABCDE'; // String with unknown length.
-    var i = confuse(3);
-    return a.codeUnitAt(i);
-  }
-
-  static f3() {
-    var a = confuse(true) ? 'AB' : 'ABCDE'; // String with unknown length.
-    return a.codeUnitAt(3);
-  }
-
-  static test() {
-    check('TooHigh', f1, f2, f3);
-  }
-}
-
-class Negative {
-  static f1() {
-    return confuse('AB').codeUnitAt(-3); // dynamic receiver.
-  }
-
-  static f2() {
-    var a = confuse(true) ? 'AB' : 'ABCDE'; // String with unknown length.
-    var i = confuse(-3);
-    return a.codeUnitAt(i);
-  }
-
-  static f3() {
-    var a = confuse(true) ? 'AB' : 'ABCDE'; // String with unknown length.
-    var i = confuse(true) ? -3 : 0;
-    return a.codeUnitAt(i);
-  }
-
-  static f4() {
-    var a = confuse(true) ? 'AB' : 'ABCDE'; // String with unknown length.
-    return a.codeUnitAt(-3);
-  }
-
-  static test() {
-    check('Negative', f1, f2, f3, f4);
-  }
-}
-
-class Empty {
-  static f1() {
-    return confuse('').codeUnitAt(0); // dynamic receiver.
-  }
-
-  static f2() {
-    var a = confuse(true) ? '' : 'ABCDE'; // Empty String with unknown length.
-    var i = confuse(true) ? 0 : 1;
-    return a.codeUnitAt(i);
-  }
-
-  static f3() {
-    var a = confuse(true) ? '' : 'ABCDE'; // Empty String with unknown length.
-    return a.codeUnitAt(0);
-  }
-
-  static test() {
-    check('Empty', f1, f2, f3);
-  }
-}
-
-class BadType {
-  static f1() {
-    return confuse('AB').codeUnitAt('a'); // dynamic receiver.
-  }
-
-  static f2() {
-    var a = confuse(true) ? 'AB' : 'ABCDE'; // String with unknown length.
-    var i = confuse('a');
-    return a.codeUnitAt(i);
-  }
-
-  static f3() {
-    var a = confuse(true) ? 'AB' : 'ABCDE'; // String with unknown length.
-    return a.codeUnitAt(('a' as dynamic));
-  }
-
-  static test() {
-    check('BadType', f1, f2, f3);
-  }
-}
-
-main() {
-  TooHigh.test();
-  Negative.test();
-  Empty.test();
-  BadType.test();
-}
diff --git a/tests/web_2/consistent_index_error_array_test.dart b/tests/web_2/consistent_index_error_array_test.dart
deleted file mode 100644
index aba6fbe4392..00000000000
--- a/tests/web_2/consistent_index_error_array_test.dart
+++ /dev/null
@@ -1,157 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-import "dart:typed_data";
-
-// Test that optimized indexing and slow path indexing produce the same error.
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-class TooHigh {
-  static load1() {
-    var a = confuse(true) ? [10, 11] : [10, 11, 12, 13, 14];
-    try {
-      // dynamic receiver causes method to be called via interceptor.
-      return confuse(a)[3];
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('unreached');
-  }
-
-  static load2() {
-    try {
-      confuse(load2x)(3);
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('unreached');
-  }
-
-  static load2x(i) {
-    var a = confuse(true) ? [10, 11] : [10, 11, 12, 13, 14];
-    // 'a' is inferred as JSArray of unknown length so has optimized check.
-    return a[i];
-  }
-
-  static test() {
-    var e1 = load1();
-    var e2 = load2();
-    Expect.equals('$e1', '$e2', '\n  A: "$e1"\n  B: "$e2"\n');
-  }
-}
-
-class Negative {
-  static load1() {
-    var a = confuse(true) ? [10, 11] : [10, 11, 12, 13, 14];
-    try {
-      // dynamic receiver causes method to be called via interceptor.
-      return confuse(a)[-3];
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('unreached');
-  }
-
-  static load2() {
-    try {
-      confuse(load2x)(-3);
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('unreached');
-  }
-
-  static load2x(i) {
-    var a = confuse(true) ? [10, 11] : [10, 11, 12, 13, 14];
-    // 'a' is inferred as JSArray of unknown length so has optimized check.
-    return a[i];
-  }
-
-  static test() {
-    var e1 = load1();
-    var e2 = load2();
-    Expect.equals('$e1', '$e2', '\n  A: "$e1"\n  B: "$e2"\n');
-  }
-}
-
-class Empty {
-  static load1() {
-    var a = confuse(true) ? [] : [10, 11, 12, 13, 14];
-    try {
-      // dynamic receiver causes method to be called via interceptor.
-      return confuse(a)[-3];
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('unreached');
-  }
-
-  static load2() {
-    try {
-      confuse(load2x)(-3);
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('unreached');
-  }
-
-  static load2x(i) {
-    var a = confuse(true) ? [] : [10, 11, 12, 13, 14];
-    // 'a' is inferred as JSArray of unknown length so has optimized check.
-    return a[i];
-  }
-
-  static test() {
-    var e1 = load1();
-    var e2 = load2();
-    Expect.equals('$e1', '$e2', '\n  A: "$e1"\n  B: "$e2"\n');
-  }
-}
-
-class BadType {
-  static load1() {
-    var a = confuse(true) ? [10, 11] : [10, 11, 12, 13, 14];
-    try {
-      // dynamic receiver causes method to be called via interceptor.
-      return confuse(a)['a'];
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('unreached');
-  }
-
-  static load2() {
-    try {
-      confuse(load2x)('a');
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('unreached');
-  }
-
-  static load2x(i) {
-    var a = confuse(true) ? [10, 11] : [10, 11, 12, 13, 14];
-    // 'a' is inferred as JSArray of unknown length so has optimized check.
-    return a[i];
-  }
-
-  static test() {
-    var e1 = load1();
-    var e2 = load2();
-    Expect.equals('$e1', '$e2', '\n  A: "$e1"\n  B: "$e2"\n');
-  }
-}
-
-main() {
-  TooHigh.test();
-  Negative.test();
-  Empty.test();
-  BadType.test();
-}
diff --git a/tests/web_2/consistent_index_error_string_test.dart b/tests/web_2/consistent_index_error_string_test.dart
deleted file mode 100644
index 935de544101..00000000000
--- a/tests/web_2/consistent_index_error_string_test.dart
+++ /dev/null
@@ -1,153 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-import "dart:typed_data";
-
-// Test that optimized indexing and slow path indexing produce the same error.
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-class TooHigh {
-  static load1() {
-    var a = confuse(true) ? 'AB' : 'ABCDE';
-    try {
-      return confuse(a)[3]; // dynamic receiver for indexer.
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('unreached');
-  }
-
-  static load2() {
-    try {
-      confuse(load2x)(3);
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('unreached');
-  }
-
-  static load2x(i) {
-    var a = confuse(true) ? 'AB' : 'ABCDE';
-    return a[i]; // 'a' is String of unknown length.
-  }
-
-  static test() {
-    var e1 = load1();
-    var e2 = load2();
-    print("  A: '$e1'\n  B: '$e2'");
-    Expect.equals('$e1', '$e2');
-  }
-}
-
-class Negative {
-  static load1() {
-    var a = confuse(true) ? 'AB' : 'ABCDE';
-    try {
-      return confuse(a)[-3]; // dynamic receiver for indexer.
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('unreached');
-  }
-
-  static load2() {
-    try {
-      confuse(load2x)(-3);
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('unreached');
-  }
-
-  static load2x(i) {
-    var a = confuse(true) ? 'AB' : 'ABCDE';
-    return a[i]; // 'a' is String of unknown length.
-  }
-
-  static test() {
-    var e1 = load1();
-    var e2 = load2();
-    print("  A: '$e1'\n  B: '$e2'");
-    Expect.equals('$e1', '$e2');
-  }
-}
-
-class Empty {
-  static load1() {
-    var a = confuse(true) ? '' : 'ABCDE';
-    try {
-      return confuse(a)[-3]; // dynamic receiver for indexer.
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('unreached');
-  }
-
-  static load2() {
-    try {
-      confuse(load2x)(-3);
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('unreached');
-  }
-
-  static load2x(i) {
-    var a = confuse(true) ? '' : 'ABCDE';
-    return a[i]; // 'a' is String of unknown length.
-  }
-
-  static test() {
-    var e1 = load1();
-    var e2 = load2();
-    print("  A: '$e1'\n  B: '$e2'");
-    Expect.equals('$e1', '$e2');
-  }
-}
-
-class BadType {
-  static load1() {
-    var a = confuse(true) ? 'AB' : 'ABCDE';
-    try {
-      return confuse(a)['a']; // dynamic receiver for indexer.
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('unreached');
-  }
-
-  static load2() {
-    try {
-      confuse(load2x)('a');
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('unreached');
-  }
-
-  static load2x(i) {
-    var a = confuse(true) ? 'AB' : 'ABCDE';
-    return a[i]; // 'a' is String of unknown length.
-  }
-
-  static test() {
-    var e1 = load1();
-    var e2 = load2();
-    print("  A: '$e1'\n  B: '$e2'");
-    Expect.equals('$e1', '$e2');
-  }
-}
-
-main() {
-  TooHigh.test();
-  Negative.test();
-  Empty.test();
-  BadType.test();
-}
diff --git a/tests/web_2/consistent_index_error_typed_list_test.dart b/tests/web_2/consistent_index_error_typed_list_test.dart
deleted file mode 100644
index 7646c4a21b5..00000000000
--- a/tests/web_2/consistent_index_error_typed_list_test.dart
+++ /dev/null
@@ -1,165 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-import "dart:typed_data";
-
-// Test that optimized indexing and slow path indexing produce the same error.
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-class TooHigh {
-  static load1() {
-    var a = confuse(true)
-        ? new Uint8List.fromList([10, 11])
-        : new Uint8List.fromList([10, 11, 12, 13, 14]);
-    try {
-      return confuse(a)[3]; // dynamic receiver for indexer.
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('unreached');
-  }
-
-  static load2() {
-    try {
-      confuse(load2x)(3);
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('unreached');
-  }
-
-  static load2x(i) {
-    var a = confuse(true)
-        ? new Uint8List.fromList([10, 11])
-        : new Uint8List.fromList([10, 11, 12, 13, 14]);
-    return a[i];
-  }
-
-  static test() {
-    var e1 = load1();
-    var e2 = load2();
-    Expect.equals('$e1', '$e2', '\n  A: "$e1"\n  B: "$e2"\n');
-  }
-}
-
-class Negative {
-  static load1() {
-    var a = confuse(true)
-        ? new Uint8List.fromList([10, 11])
-        : new Uint8List.fromList([10, 11, 12, 13, 14]);
-    try {
-      return confuse(a)[-3]; // dynamic receiver for indexer.
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('unreached');
-  }
-
-  static load2() {
-    try {
-      confuse(load2x)(-3);
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('unreached');
-  }
-
-  static load2x(i) {
-    var a = confuse(true)
-        ? new Uint8List.fromList([10, 11])
-        : new Uint8List.fromList([10, 11, 12, 13, 14]);
-    return a[i];
-  }
-
-  static test() {
-    var e1 = load1();
-    var e2 = load2();
-    Expect.equals('$e1', '$e2', '\n  A: "$e1"\n  B: "$e2"\n');
-  }
-}
-
-class Empty {
-  static load1() {
-    var a = confuse(true)
-        ? new Uint8List.fromList([])
-        : new Uint8List.fromList([10, 11, 12, 13, 14]);
-    try {
-      return confuse(a)[-3]; // dynamic receiver for indexer.
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('unreached');
-  }
-
-  static load2() {
-    try {
-      confuse(load2x)(-3);
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('unreached');
-  }
-
-  static load2x(i) {
-    var a = confuse(true)
-        ? new Uint8List.fromList([])
-        : new Uint8List.fromList([10, 11, 12, 13, 14]);
-    return a[i];
-  }
-
-  static test() {
-    var e1 = load1();
-    var e2 = load2();
-    Expect.equals('$e1', '$e2', '\n  A: "$e1"\n  B: "$e2"\n');
-  }
-}
-
-class BadType {
-  static load1() {
-    var a = confuse(true)
-        ? new Uint8List.fromList([10, 11])
-        : new Uint8List.fromList([10, 11, 12, 13, 14]);
-    try {
-      return confuse(a)['a']; // dynamic receiver for indexer.
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('unreached');
-  }
-
-  static load2() {
-    try {
-      confuse(load2x)('a');
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('unreached');
-  }
-
-  static load2x(i) {
-    var a = confuse(true)
-        ? new Uint8List.fromList([10, 11])
-        : new Uint8List.fromList([10, 11, 12, 13, 14]);
-    return a[i];
-  }
-
-  static test() {
-    var e1 = load1();
-    var e2 = load2();
-    Expect.equals('$e1', '$e2', '\n  A: "$e1"\n  B: "$e2"\n');
-  }
-}
-
-main() {
-  TooHigh.test();
-  Negative.test();
-  Empty.test();
-  BadType.test();
-}
diff --git a/tests/web_2/consistent_null_add_error_test.dart b/tests/web_2/consistent_null_add_error_test.dart
deleted file mode 100644
index 2ab6ce5079b..00000000000
--- a/tests/web_2/consistent_null_add_error_test.dart
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-// Test that optimized 'null + x' and slow path '+' produce the same error.
-//
-// They don't, sometimes we generate null.$add, sometimes JSNull_methods.$add.
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-void check2(String name, name1, f1, name2, f2) {
-  Error trap(part, f) {
-    try {
-      f();
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('should throw: $name.$part');
-  }
-
-  var e1 = trap(name1, f1);
-  var e2 = trap(name2, f2);
-  var s1 = '$e1';
-  var s2 = '$e2';
-  Expect.equals(s1, s2, '\n  $name.$name1: "$s1"\n  $name.$name2: "$s2"\n');
-}
-
-void check(String name, f1, f2, [f3, f4, f5, f6]) {
-  check2(name, 'f1', f1, 'f2', f2);
-  if (f3 != null) check2(name, 'f1', f1, 'f3', f3);
-  if (f4 != null) check2(name, 'f1', f1, 'f4', f4);
-  if (f5 != null) check2(name, 'f1', f1, 'f5', f5);
-  if (f6 != null) check2(name, 'f1', f1, 'f6', f6);
-}
-
-class NullPlusInt {
-  static f1() {
-    return confuse(null) + confuse(1);
-  }
-
-  static f2() {
-    return confuse(null) + 1;
-  }
-
-  static f3() {
-    return (confuse(null) as int) + confuse(1);
-  }
-
-  static f4() {
-    return (confuse(null) as int) + 1;
-  }
-
-  static f5() {
-    var a = null;
-    return a + confuse(1);
-  }
-
-  static f6() {
-    var a = null;
-    return a + 1;
-  }
-
-  static test() {
-    // Sometimes we generate null.$add, sometimes JSNull_methods.$add. The best
-    // we can do is check there is an error.
-    check('NullPlusInt', f1, f1);
-    check('NullPlusInt', f2, f2);
-    check('NullPlusInt', f3, f3);
-    check('NullPlusInt', f4, f4);
-    check('NullPlusInt', f5, f5);
-    check('NullPlusInt', f6, f6);
-  }
-}
-
-main() {
-  NullPlusInt.test();
-}
diff --git a/tests/web_2/consistent_subtract_error_test.dart b/tests/web_2/consistent_subtract_error_test.dart
deleted file mode 100644
index 6cba5c8d460..00000000000
--- a/tests/web_2/consistent_subtract_error_test.dart
+++ /dev/null
@@ -1,105 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-/// dart2jsOptions=--omit-implicit-checks
-
-import "package:expect/expect.dart";
-
-// Test that optimized '-' and slow path '-' produce the same error.
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-void check2(String name, name1, f1, name2, f2) {
-  Error trap(part, f) {
-    try {
-      f();
-    } catch (e) {
-      return e;
-    }
-    Expect.fail('should throw: $name.$part');
-  }
-
-  var e1 = trap(name1, f1);
-  var e2 = trap(name2, f2);
-  var s1 = '$e1';
-  var s2 = '$e2';
-  Expect.equals(s1, s2, '\n  $name.$name1: "$s1"\n  $name.$name2: "$s2"\n');
-}
-
-void check(String name, f1, f2, [f3, f4, f5, f6, f7]) {
-  check2(name, 'f1', f1, 'f2', f2);
-  if (f3 != null) check2(name, 'f1', f1, 'f3', f3);
-  if (f4 != null) check2(name, 'f1', f1, 'f4', f4);
-  if (f5 != null) check2(name, 'f1', f1, 'f5', f5);
-  if (f6 != null) check2(name, 'f1', f1, 'f6', f6);
-  if (f7 != null) check2(name, 'f1', f1, 'f7', f7);
-}
-
-class IntMinusNull {
-  static f1() {
-    return confuse(1) - confuse(null);
-  }
-
-  static f2() {
-    return confuse(1) - null;
-  }
-
-  static f3() {
-    return (confuse(1) as int) - confuse(null);
-  }
-
-  static f4() {
-    return (confuse(1) as int) - null;
-  }
-
-  static f5() {
-    var a = confuse(true) ? 1 : 2; // Small int with unknown value.
-    return a - confuse(null);
-  }
-
-  static f6() {
-    var a = confuse(true) ? 1 : 2; // Small int with unknown value.
-    return a - null;
-  }
-
-  static f7() {
-    return 1 - null;
-  }
-
-  static test() {
-    check('IntMinusNull', f1, f2, f3, f4, f5, f6, f7);
-  }
-}
-
-class IntMinusString {
-  static f1() {
-    return confuse(1) - confuse('a');
-  }
-
-  static f2() {
-    return confuse(1) - 'a';
-  }
-
-  static f3() {
-    var a = confuse(true) ? 1 : 2; // Small int with unknown value.
-    return a - confuse('a');
-  }
-
-  static f4() {
-    return (confuse(1) as int) - confuse('a');
-  }
-
-  static test() {
-    check('IntMinusString', f1, f2, f3, f4);
-  }
-}
-
-main() {
-  IntMinusNull.test();
-  IntMinusString.test();
-}
diff --git a/tests/web_2/consistent_type_error_test.dart b/tests/web_2/consistent_type_error_test.dart
deleted file mode 100644
index d8287aa2336..00000000000
--- a/tests/web_2/consistent_type_error_test.dart
+++ /dev/null
@@ -1,205 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that type checks give consistent errors for the same types. In minified
-// mode this checks that the minified class names are consistently tagged.
-
-import 'package:expect/expect.dart';
-
-class Plain {}
-
-class Foo<U> {}
-
-class Test<T> {
-  @pragma('dart2js:noInline')
-  asT(o) => o as T;
-
-  @pragma('dart2js:noInline')
-  asFooT(o) => o as Foo<T>;
-
-  @pragma('dart2js:noInline')
-  testT(o) {
-    T result = o;
-  }
-
-  @pragma('dart2js:noInline')
-  testFooT(o) {
-    Foo<T> result = o;
-  }
-}
-
-capture(action()) {
-  try {
-    action();
-  } catch (e) {
-    print('$e');
-    return '$e';
-  }
-  Expect.fail('Action should have failed');
-}
-
-dynamic g;
-
-casts() {
-  g = Foo<String>();
-
-  Expect.equals(
-    capture(() => Test<Foo<Plain>>().asT(g)),
-    capture(() => g as Foo<Plain>),
-    "C1",
-  );
-
-  Expect.equals(
-    capture(() => g as Foo<Plain>),
-    capture(() => Test<Plain>().asFooT(g)),
-    "C2",
-  );
-
-  Expect.equals(
-    capture(() => Test<Plain>().asT(g)),
-    capture(() => g as Plain),
-    "C3",
-  );
-
-  g = Foo<Plain>();
-
-  Expect.equals(
-    capture(() => Test<Foo<String>>().asT(g)),
-    capture(() => g as Foo<String>),
-    "C4",
-  );
-
-  Expect.equals(
-    capture(() => g as Foo<String>),
-    capture(() => Test<String>().asFooT(g)),
-    "C5",
-  );
-
-  g = Plain();
-
-  Expect.equals(
-    capture(() => Test<String>().asT(g)),
-    capture(() => g as String),
-    "C6",
-  );
-
-  Expect.equals(
-    capture(() => Test<int>().asT(g)),
-    capture(() => g as int),
-    "C7",
-  );
-
-  Expect.equals(
-    capture(() => Test<double>().asT(g)),
-    capture(() => g as double),
-    "C8",
-  );
-
-  Expect.equals(
-    capture(() => Test<bool>().asT(g)),
-    capture(() => g as bool),
-    "C9",
-  );
-
-  Expect.equals(
-    capture(() => Test<List>().asT(g)),
-    capture(() => g as List),
-    "C10",
-  );
-}
-
-tests() {
-  g = Foo<String>();
-
-  Expect.equals(
-    capture(() => Test<Foo<Plain>>().testT(g)),
-    capture(() {
-      Foo<Plain> x = g;
-    }),
-    "T1",
-  );
-
-  Expect.equals(
-    capture(() {
-      Foo<Plain> x = g;
-    }),
-    capture(() => Test<Plain>().testFooT(g)),
-    "T2",
-  );
-
-  Expect.equals(
-    capture(() => Test<Plain>().testT(g)),
-    capture(() {
-      Plain x = g;
-    }),
-    "T3",
-  );
-
-  g = Foo<Plain>();
-
-  Expect.equals(
-    capture(() => Test<Foo<String>>().testT(g)),
-    capture(() {
-      Foo<String> x = g;
-    }),
-    "T4",
-  );
-
-  Expect.equals(
-    capture(() {
-      Foo<String> x = g;
-    }),
-    capture(() => Test<String>().testFooT(g)),
-    "T5",
-  );
-
-  g = Plain();
-
-  Expect.equals(
-    capture(() => Test<String>().testT(g)),
-    capture(() {
-      String x = g;
-    }),
-    "T6",
-  );
-
-  Expect.equals(
-    capture(() => Test<int>().testT(g)),
-    capture(() {
-      int x = g;
-    }),
-    "T7",
-  );
-
-  Expect.equals(
-    capture(() => Test<double>().testT(g)),
-    capture(() {
-      double x = g;
-    }),
-    "T8",
-  );
-
-  Expect.equals(
-    capture(() => Test<bool>().testT(g)),
-    capture(() {
-      bool x = g;
-    }),
-    "T9",
-  );
-
-  Expect.equals(
-    capture(() => Test<List>().testT(g)),
-    capture(() {
-      List x = g;
-    }),
-    "T10",
-  );
-}
-
-main() {
-  casts();
-  tests();
-}
diff --git a/tests/web_2/constant_fold_number_dart2_j_s_test.dart b/tests/web_2/constant_fold_number_dart2_j_s_test.dart
deleted file mode 100644
index bb3057d0362..00000000000
--- a/tests/web_2/constant_fold_number_dart2_j_s_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-// This test is making sure we don't try to constant fold numbers
-// where the semantics differ at compile-time (Dart) and runtime (JS).
-
-import "package:expect/expect.dart";
-
-foo() => 0.0;
-bar() => 0;
-
-main() {
-  Expect.equals(foo(), bar());
-  Expect.equals(0.0, 0);
-}
diff --git a/tests/web_2/constant_folding2_test.dart b/tests/web_2/constant_folding2_test.dart
deleted file mode 100644
index 3fc8e719770..00000000000
--- a/tests/web_2/constant_folding2_test.dart
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'dart:async';
-import 'package:expect/expect.dart';
-
-get b => 499;
-@pragma('dart2js:noInline')
-get b_noInline => b;
-const b0 = 499 is FutureOr<int>;
-final b1 = 499 is FutureOr<int>;
-get b2 => 499 is FutureOr<int>;
-get b3 => b is FutureOr<int>;
-get b4 => b_noInline is FutureOr<int>;
-
-get c => 499;
-@pragma('dart2js:noInline')
-get c_noInline => c;
-const c0 = 499 is FutureOr<FutureOr<int>>;
-final c1 = 499 is FutureOr<FutureOr<int>>;
-get c2 => 499 is FutureOr<FutureOr<int>>;
-get c3 => c is FutureOr<FutureOr<int>>;
-get c4 => c_noInline is FutureOr<FutureOr<int>>;
-
-get d => 499.0;
-@pragma('dart2js:noInline')
-get d_noInline => d;
-const d0 = 499.0 is FutureOr<int>;
-final d1 = 499.0 is FutureOr<int>;
-get d2 => 499.0 is FutureOr<int>;
-get d3 => d is FutureOr<int>;
-get d4 => d_noInline is FutureOr<int>;
-
-get e => 499;
-@pragma('dart2js:noInline')
-get e_noInline => e;
-const e0 = 499 is FutureOr<double>;
-final e1 = 499 is FutureOr<double>;
-get e2 => 499 is FutureOr<double>;
-get e3 => e is FutureOr<double>;
-get e4 => e_noInline is FutureOr<double>;
-
-get f => 499;
-@pragma('dart2js:noInline')
-get f_noInline => f;
-const f0 = 499 is FutureOr<FutureOr<double>>;
-final f1 = 499 is FutureOr<FutureOr<double>>;
-get f2 => 499 is FutureOr<FutureOr<double>>;
-get f3 => f is FutureOr<FutureOr<double>>;
-get f4 => f_noInline is FutureOr<FutureOr<double>>;
-
-test(fromConst, fromFinal, fromImplicitConstant, fromInlined, fromRuntime) {
-  Expect.equals(fromRuntime, fromConst);
-  Expect.equals(fromRuntime, fromFinal);
-  Expect.equals(fromRuntime, fromInlined);
-  Expect.equals(fromRuntime, fromImplicitConstant);
-}
-
-main() {
-  test(b0, b1, b2, b3, b4);
-  test(c0, c1, c2, c3, c4);
-  test(d0, d1, d2, d3, d4);
-  test(e0, e1, e2, e3, e4);
-  test(f0, f1, f2, f3, f4);
-}
diff --git a/tests/web_2/constant_folding_test.dart b/tests/web_2/constant_folding_test.dart
deleted file mode 100644
index 927ac288004..00000000000
--- a/tests/web_2/constant_folding_test.dart
+++ /dev/null
@@ -1,1285 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-void main() {
-  const BitNot(42, 4294967253).check();
-  const BitNot(4294967253, 42).check();
-  const BitNot(-42, 41).check();
-  const BitNot(-1, 0).check();
-  const BitNot(0, 0xFFFFFFFF).check();
-  const BitNot(4294967295, 0).check();
-  const BitNot(0x12121212121212, 0xEDEDEDED).check();
-  const BitNot(0x7fffffff00000000, 0xffffffff).check();
-  const BitNot(0x8000000000000000, 0xffffffff).check();
-
-  const Negate(0, -0).check();
-  const Negate(-0, 0).check();
-  const Negate(0.0, -0.0).check();
-  const Negate(-0.0, 0.0).check();
-  const Negate(-0.0, 0).check();
-  const Negate(-0, 0.0).check();
-  const Negate(0, -0.0).check();
-  const Negate(0.0, -0).check();
-  const Negate(1, -1).check();
-  const Negate(-1, 1).check();
-  const Negate(1.0, -1.0).check();
-  const Negate(-1.0, 1.0).check();
-  const Negate(3.14, -3.14).check();
-  const Negate(-3.14, 3.14).check();
-  const Negate(4294967295, -4294967295).check();
-  const Negate(-4294967295, 4294967295).check();
-  const Negate(4294967295.5, -4294967295.5).check();
-  const Negate(-4294967295.5, 4294967295.5).check();
-  const Negate(4294967296, -4294967296).check();
-  const Negate(-4294967296, 4294967296).check();
-  const Negate(4294967296.5, -4294967296.5).check();
-  const Negate(-4294967296.5, 4294967296.5).check();
-  const Negate(9007199254740991, -9007199254740991).check();
-  const Negate(-9007199254740991, 9007199254740991).check();
-  const Negate(9007199254740991.5, -9007199254740991.5).check();
-  const Negate(-9007199254740991.5, 9007199254740991.5).check();
-  const Negate(9007199254740992, -9007199254740992).check();
-  const Negate(-9007199254740992, 9007199254740992).check();
-  const Negate(9007199254740992.5, -9007199254740992.5).check();
-  const Negate(-9007199254740992.5, 9007199254740992.5).check();
-  const Negate(double.infinity, double.negativeInfinity).check();
-  const Negate(double.negativeInfinity, double.infinity).check();
-  const Negate(double.maxFinite, -double.maxFinite).check();
-  const Negate(-double.maxFinite, double.maxFinite).check();
-  const Negate(double.minPositive, -double.minPositive).check();
-  const Negate(-double.minPositive, double.minPositive).check();
-  const Negate(double.nan, double.nan).check();
-  const Negate(0x7fffffff00000000, -0x7fffffff00000000).check();
-  const Negate(-0x7fffffff00000000, 0x7fffffff00000000).check();
-  const Negate(0x8000000000000000, -0x8000000000000000).check();
-  const Negate(-0x8000000000000000, 0x8000000000000000).check();
-
-  const Not(true, false).check();
-  const Not(false, true).check();
-
-  const BitAnd(314159, 271828, 262404).check();
-  const BitAnd(271828, 314159, 262404).check();
-  const BitAnd(0, 0, 0).check();
-  const BitAnd(-1, 0, 0).check();
-  const BitAnd(-1, 314159, 314159).check();
-  const BitAnd(-1, 0xFFFFFFFF, 0xFFFFFFFF).check();
-  const BitAnd(0xff, -4, 0xfc).check();
-  const BitAnd(0, 0xFFFFFFFF, 0).check();
-  const BitAnd(0xFFFFFFFF, 0, 0).check();
-  const BitAnd(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF).check();
-  const BitAnd(0x123456789ABC, 0xEEEEEEEEEEEE, 0x46688AAC).check();
-  const BitAnd(0x7fffffff00008000, 0x8000000000008000, 0x8000).check();
-  const BitAnd(0x8000000000008000, 0x7fffffff00008000, 0x8000).check();
-  const BitAnd(true, true, true).check();
-  const BitAnd(true, false, false).check();
-  const BitAnd(false, true, false).check();
-  const BitAnd(false, false, false).check();
-
-  const BitOr(314159, 271828, 323583).check();
-  const BitOr(271828, 314159, 323583).check();
-  const BitOr(0, 0, 0).check();
-  const BitOr(-8, 0, 0xFFFFFFF8).check();
-  const BitOr(-8, 271828, 0xFFFFFFFC).check();
-  const BitOr(-8, 0xFFFFFFFF, 0xFFFFFFFF).check();
-  const BitOr(0x1, -4, 0xFFFFFFFD).check();
-  const BitOr(0, 0xFFFFFFFF, 0xFFFFFFFF).check();
-  const BitOr(0xFFFFFFFF, 0, 0xFFFFFFFF).check();
-  const BitOr(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF).check();
-  const BitOr(0x123456789ABC, 0x111111111111, 0x57799BBD).check();
-  const BitOr(0x7000000080000000, 0x8000000000008000, 0x80008000).check();
-  const BitOr(0x8000000000008000, 0x7000000080000000, 0x80008000).check();
-  const BitOr(true, true, true).check();
-  const BitOr(true, false, true).check();
-  const BitOr(false, true, true).check();
-  const BitOr(false, false, false).check();
-
-  const BitXor(314159, 271828, 61179).check();
-  const BitXor(271828, 314159, 61179).check();
-  const BitXor(0, 0, 0).check();
-  const BitXor(-1, 0, 0xFFFFFFFF).check();
-  const BitXor(-256, 1, 0xFFFFFF01).check();
-  const BitXor(-256, -255, 1).check();
-  const BitXor(0, 0xFFFFFFFF, 0xFFFFFFFF).check();
-  const BitXor(0xFFFFFFFF, 0, 0xFFFFFFFF).check();
-  const BitXor(0xFFFFFFFF, 0xFFFFFFFF, 0).check();
-  const BitXor(0x123456789ABC, 0x111111111111, 0x47698BAD).check();
-  const BitXor(0x7000000012340000, 0x8000000011110000, 0x03250000).check();
-  const BitXor(0x8000000011110000, 0x7000000012340000, 0x03250000).check();
-  const BitXor(true, true, false).check();
-  const BitXor(true, false, true).check();
-  const BitXor(false, true, true).check();
-  const BitXor(false, false, false).check();
-
-  const ShiftLeft(42, 0, 42).check();
-  const ShiftLeft(42, 5, 1344).check();
-  const ShiftLeft(1, 31, 0x80000000).check();
-  const ShiftLeft(1, 32, 0).check();
-  const ShiftLeft(1, 100, 0).check();
-  const ShiftLeft(0, 0, 0).check();
-  const ShiftLeft(0, 5, 0).check();
-  const ShiftLeft(0, 31, 0).check();
-  const ShiftLeft(0, 32, 0).check();
-  const ShiftLeft(0, 100, 0).check();
-  const ShiftLeft(-1, 0, 0xFFFFFFFF).check();
-  const ShiftLeft(-1, 5, 0xFFFFFFE0).check();
-  const ShiftLeft(-1, 31, 0x80000000).check();
-  const ShiftLeft(-1, 32, 0).check();
-  const ShiftLeft(-1, 100, 0).check();
-  const ShiftLeft(0x7000000000008000, 0, 0x8000).check();
-  const ShiftLeft(0x7000000000008000, 1, 0x10000).check();
-  const ShiftLeft(0x7000000000008000, 16, 0x80000000).check();
-  const ShiftLeft(0x7000000000008000, 17, 0x0).check();
-  const ShiftLeft(0x8000000000008000, 0, 0x8000).check();
-  const ShiftLeft(0x8000000000008000, 1, 0x10000).check();
-  const ShiftLeft(0x8000000000008000, 16, 0x80000000).check();
-  const ShiftLeft(0x8000000000008000, 17, 0x0).check();
-
-  const ShiftRight(8675309, 0, 8675309).check();
-  const ShiftRight(8675309, 5, 271103).check();
-  const ShiftRight(0xFEDCBA98, 0, 0xFEDCBA98).check();
-  const ShiftRight(0xFEDCBA98, 5, 0x07F6E5D4).check();
-  const ShiftRight(0xFEDCBA98, 31, 1).check();
-  const ShiftRight(0xFEDCBA98, 32, 0).check();
-  const ShiftRight(0xFEDCBA98, 100, 0).check();
-  const ShiftRight(0xFFFFFEDCBA98, 0, 0xFEDCBA98).check();
-  const ShiftRight(0xFFFFFEDCBA98, 5, 0x07F6E5D4).check();
-  const ShiftRight(0xFFFFFEDCBA98, 31, 1).check();
-  const ShiftRight(0xFFFFFEDCBA98, 32, 0).check();
-  const ShiftRight(0xFFFFFEDCBA98, 100, 0).check();
-  const ShiftRight(-1, 0, 0xFFFFFFFF).check();
-  const ShiftRight(-1, 5, 0xFFFFFFFF).check();
-  const ShiftRight(-1, 31, 0xFFFFFFFF).check();
-  const ShiftRight(-1, 32, 0xFFFFFFFF).check();
-  const ShiftRight(-1, 100, 0xFFFFFFFF).check();
-  const ShiftRight(-1073741824, 0, 0xC0000000).check();
-  const ShiftRight(-1073741824, 5, 0xFE000000).check();
-  const ShiftRight(-1073741824, 31, 0xFFFFFFFF).check();
-  const ShiftRight(-1073741824, 32, 0xFFFFFFFF).check();
-  const ShiftRight(-1073741824, 100, 0xFFFFFFFF).check();
-  const ShiftRight(0x7000000000008000, 0, 0x8000).check();
-  const ShiftRight(0x7000000000008000, 1, 0x4000).check();
-  const ShiftRight(0x7000000000008000, 15, 0x1).check();
-  const ShiftRight(0x7000000000008000, 16, 0).check();
-  const ShiftRight(0x8000000000008000, 0, 0x8000).check();
-  const ShiftRight(0x8000000000008000, 1, 0x4000).check();
-  const ShiftRight(0x8000000000008000, 15, 0x1).check();
-  const ShiftRight(0x8000000000008000, 16, 0).check();
-
-  const BooleanAnd(true, true, true).check();
-  const BooleanAnd(true, false, false).check();
-  const BooleanAnd(false, true, false).check();
-  const BooleanAnd(false, false, false).check();
-  const BooleanAnd(false, null, false).check();
-
-  const BooleanOr(true, true, true).check();
-  const BooleanOr(true, false, true).check();
-  const BooleanOr(false, true, true).check();
-  const BooleanOr(false, false, false).check();
-  const BooleanOr(true, null, true).check();
-
-  const Subtract(314159, 271828, 42331).check();
-  const Subtract(271828, 314159, -42331).check();
-  const Subtract(0, 0, 0).check();
-  const Subtract(0, 42, -42).check();
-  const Subtract(0, -42, 42).check();
-  const Subtract(42, 0, 42).check();
-  const Subtract(42, 42, 0).check();
-  const Subtract(42, -42, 84).check();
-  const Subtract(-42, 0, -42).check();
-  const Subtract(-42, 42, -84).check();
-  const Subtract(-42, -42, 0).check();
-  const Subtract(4294967295, -1, 4294967296).check();
-  const Subtract(4294967296, -1, 4294967297).check();
-  const Subtract(9007199254740991, -1, 9007199254740992).check();
-  const Subtract(9007199254740992, -1, 9007199254740992).check();
-  const Subtract(9007199254740992, -100, 9007199254741092).check();
-  const Subtract(-4294967295, 1, -4294967296).check();
-  const Subtract(-4294967296, 1, -4294967297).check();
-  const Subtract(-9007199254740991, 1, -9007199254740992).check();
-  const Subtract(-9007199254740992, 1, -9007199254740992).check();
-  const Subtract(-9007199254740992, 100, -9007199254741092).check();
-  const Subtract(
-          0x7fffffff00000000, -0x7fffffff00000000, 2 * 0x7fffffff00000000)
-      .check();
-  const Subtract(4.2, 1.5, 2.7).check();
-  const Subtract(1.5, 4.2, -2.7).check();
-  const Subtract(1.5, 0, 1.5).check();
-  const Subtract(0, 1.5, -1.5).check();
-  const Subtract(1.5, 1.5, 0.0).check();
-  const Subtract(-1.5, -1.5, 0.0).check();
-  const Subtract(0.0, 0.0, 0.0).check();
-  const Subtract(0.0, -0.0, 0.0).check();
-  const Subtract(-0.0, 0.0, -0.0).check();
-  const Subtract(-0.0, -0.0, 0.0).check();
-  const Subtract(double.maxFinite, -double.maxFinite, double.infinity).check();
-  const Subtract(-double.maxFinite, double.maxFinite, double.negativeInfinity)
-      .check();
-  const Subtract(1.5, double.nan, double.nan).check();
-  const Subtract(double.nan, 1.5, double.nan).check();
-  const Subtract(double.nan, double.nan, double.nan).check();
-  const Subtract(double.nan, double.infinity, double.nan).check();
-  const Subtract(double.nan, double.negativeInfinity, double.nan).check();
-  const Subtract(double.infinity, double.nan, double.nan).check();
-  const Subtract(double.negativeInfinity, double.nan, double.nan).check();
-  const Subtract(double.infinity, double.maxFinite, double.infinity).check();
-  const Subtract(double.infinity, -double.maxFinite, double.infinity).check();
-  const Subtract(
-          double.negativeInfinity, double.maxFinite, double.negativeInfinity)
-      .check();
-  const Subtract(
-          double.negativeInfinity, -double.maxFinite, double.negativeInfinity)
-      .check();
-  const Subtract(1.5, double.infinity, double.negativeInfinity).check();
-  const Subtract(1.5, double.negativeInfinity, double.infinity).check();
-  const Subtract(double.infinity, double.infinity, double.nan).check();
-  const Subtract(double.infinity, double.negativeInfinity, double.infinity)
-      .check();
-  const Subtract(
-          double.negativeInfinity, double.infinity, double.negativeInfinity)
-      .check();
-  const Subtract(double.negativeInfinity, double.negativeInfinity, double.nan)
-      .check();
-  const Subtract(double.minPositive, double.minPositive, 0.0).check();
-  const Subtract(-double.minPositive, -double.minPositive, 0.0).check();
-
-  const Multiply(6, 7, 42).check();
-  const Multiply(-6, 7, -42).check();
-  const Multiply(6, -7, -42).check();
-  const Multiply(-6, -7, 42).check();
-  const Multiply(0, 0, 0).check();
-  const Multiply(0, 7, 0).check();
-  const Multiply(6, 0, 0).check();
-  const Multiply(65536, 65536, 4294967296).check();
-  const Multiply(4294967296, -1, -4294967296).check();
-  const Multiply(-1, 4294967296, -4294967296).check();
-  const Multiply(134217728, 134217728, 18014398509481984).check();
-  const Multiply(18014398509481984, -1, -18014398509481984).check();
-  const Multiply(-1, 18014398509481984, -18014398509481984).check();
-  const Multiply(9000000000000000, 9000000000000000, 8.1e31).check();
-  const Multiply(0x7fff000000000000, 0x8000000000000000, 8.506799558180535e37)
-      .check();
-  const Multiply(0x8000000000000000, 1.2, 11068046444225730000.0).check();
-  const Multiply(3.14, 2.72, 8.5408).check();
-  const Multiply(-3.14, 2.72, -8.5408).check();
-  const Multiply(3.14, -2.72, -8.5408).check();
-  const Multiply(-3.14, -2.72, 8.5408).check();
-  const Multiply(3.14, 0, 0.0).check();
-  const Multiply(0, 2.72, 0.0).check();
-  const Multiply(0.0, 0.0, 0.0).check();
-  const Multiply(0.0, -0.0, -0.0).check();
-  const Multiply(-0.0, 0.0, -0.0).check();
-  const Multiply(-0.0, -0.0, 0.0).check();
-  const Multiply(double.maxFinite, double.maxFinite, double.infinity).check();
-  const Multiply(double.maxFinite, -double.maxFinite, double.negativeInfinity)
-      .check();
-  const Multiply(-double.maxFinite, double.maxFinite, double.negativeInfinity)
-      .check();
-  const Multiply(-double.maxFinite, -double.maxFinite, double.infinity).check();
-  const Multiply(0, double.nan, double.nan).check();
-  const Multiply(double.nan, 0, double.nan).check();
-  const Multiply(double.nan, double.nan, double.nan).check();
-  const Multiply(0, double.infinity, double.nan).check();
-  const Multiply(double.infinity, 0, double.nan).check();
-  const Multiply(0, double.negativeInfinity, double.nan).check();
-  const Multiply(double.negativeInfinity, 0, double.nan).check();
-  const Multiply(-0.0, double.infinity, double.nan).check();
-  const Multiply(double.infinity, -0.0, double.nan).check();
-  const Multiply(-0.0, double.negativeInfinity, double.nan).check();
-  const Multiply(double.negativeInfinity, -0.0, double.nan).check();
-  const Multiply(double.infinity, double.infinity, double.infinity).check();
-  const Multiply(
-          double.infinity, double.negativeInfinity, double.negativeInfinity)
-      .check();
-  const Multiply(
-          double.negativeInfinity, double.infinity, double.negativeInfinity)
-      .check();
-  const Multiply(
-          double.negativeInfinity, double.negativeInfinity, double.infinity)
-      .check();
-  const Multiply(double.minPositive, 0.5, 0.0).check();
-  const Multiply(double.minPositive, -0.5, -0.0).check();
-  const Multiply(-double.minPositive, 0.5, -0.0).check();
-  const Multiply(-double.minPositive, -0.5, 0.0).check();
-  const Multiply(1e-300, -1e-300, -0.0).check();
-  const Multiply(double.minPositive, double.infinity, double.infinity).check();
-  const Multiply(
-          double.minPositive, double.negativeInfinity, double.negativeInfinity)
-      .check();
-  const Multiply(double.minPositive, double.maxFinite, 8.881784197001251e-16)
-      .check();
-
-  const Modulo(27, 314159, 27).check();
-  const Modulo(27, 1, 0).check();
-  const Modulo(27, -1, 0).check();
-  const Modulo(-27, 1, 0).check();
-  const Modulo(-27, -1, 0).check();
-  const Modulo(314159, 27, 14).check();
-  const Modulo(314159, -27, 14).check();
-  const Modulo(-314159, 27, 13).check();
-  const Modulo(-314159, -27, 13).check();
-  const Modulo(4294967295, 4294967296, 4294967295).check();
-  const Modulo(4294967295, -4294967296, 4294967295).check();
-  const Modulo(-4294967295, 4294967296, 1).check();
-  const Modulo(-4294967295, -4294967296, 1).check();
-  const Modulo(9007199254740991, 9007199254740992, 9007199254740991).check();
-  const Modulo(9007199254740991, -9007199254740992, 9007199254740991).check();
-  const Modulo(-9007199254740991, 9007199254740992, 1).check();
-  const Modulo(-9007199254740991, -9007199254740992, 1).check();
-  const Modulo(2.71828, 3.14159, 2.71828).check();
-  const Modulo(2.71828, 1, 0.71828).check();
-  const Modulo(2.71828, -1, 0.71828).check();
-  const Modulo(-2.71828, 1, 0.28171999999999997).check();
-  const Modulo(-2.71828, -1, 0.28171999999999997).check();
-  const Modulo(27.1828, 3.14159, 2.0500800000000012).check();
-  const Modulo(27.1828, -3.14159, 2.0500800000000012).check();
-  const Modulo(-27.1828, 3.14159, 1.0915099999999986).check();
-  const Modulo(-27.1828, -3.14159, 1.0915099999999986).check();
-  const Modulo(42, double.nan, double.nan).check();
-  const Modulo(double.nan, 42, double.nan).check();
-  const Modulo(0, double.nan, double.nan).check();
-  const Modulo(double.nan, double.nan, double.nan).check();
-  const Modulo(double.infinity, double.nan, double.nan).check();
-  const Modulo(double.nan, double.infinity, double.nan).check();
-  const Modulo(0.0, double.infinity, 0).check();
-  const Modulo(-0.0, double.infinity, 0).check();
-  const Modulo(0.0, double.negativeInfinity, 0).check();
-  const Modulo(-0.0, double.negativeInfinity, 0).check();
-  const Modulo(42, double.infinity, 42).check();
-  const Modulo(-42, double.infinity, double.infinity).check();
-  const Modulo(42, double.negativeInfinity, 42).check();
-  const Modulo(-42, double.negativeInfinity, double.infinity).check();
-  const Modulo(double.infinity, 42, double.nan).check();
-  const Modulo(double.infinity, -42, double.nan).check();
-  const Modulo(double.negativeInfinity, 42, double.nan).check();
-  const Modulo(double.negativeInfinity, -42, double.nan).check();
-  const Modulo(double.infinity, double.infinity, double.nan).check();
-  const Modulo(double.negativeInfinity, double.infinity, double.nan).check();
-  const Modulo(double.infinity, double.negativeInfinity, double.nan).check();
-  const Modulo(double.negativeInfinity, double.negativeInfinity, double.nan)
-      .check();
-
-  const TruncatingDivide(27, 314159, 0).check();
-  const TruncatingDivide(27, 1, 27).check();
-  const TruncatingDivide(27, -1, -27).check();
-  const TruncatingDivide(-27, 1, -27).check();
-  const TruncatingDivide(-27, -1, 27).check();
-  const TruncatingDivide(314159, 27, 11635).check();
-  const TruncatingDivide(314159, -27, -11635).check();
-  const TruncatingDivide(-314159, 27, -11635).check();
-  const TruncatingDivide(-314159, -27, 11635).check();
-  const TruncatingDivide(4294967295, 4294967296, 0).check();
-  const TruncatingDivide(4294967295, -4294967296, 0).check();
-  const TruncatingDivide(-4294967295, 4294967296, 0).check();
-  const TruncatingDivide(-4294967295, -4294967296, 0).check();
-  const TruncatingDivide(9007199254740991, 9007199254740992, 0).check();
-  const TruncatingDivide(9007199254740991, -9007199254740992, 0).check();
-  const TruncatingDivide(-9007199254740991, 9007199254740992, 0).check();
-  const TruncatingDivide(-9007199254740991, -9007199254740992, 0).check();
-  const TruncatingDivide(4294967295, 0.5, 8589934590).check();
-  const TruncatingDivide(4294967295, -0.5, -8589934590).check();
-  const TruncatingDivide(-4294967295, 0.5, -8589934590).check();
-  const TruncatingDivide(-4294967295, -0.5, 8589934590).check();
-  const TruncatingDivide(9007199254740991, 0.5, 18014398509481982).check();
-  const TruncatingDivide(9007199254740991, -0.5, -18014398509481982).check();
-  const TruncatingDivide(-9007199254740991, 0.5, -18014398509481982).check();
-  const TruncatingDivide(-9007199254740991, -0.5, 18014398509481982).check();
-  const TruncatingDivide(0x8000000000000000, -1, -0x8000000000000000).check();
-  const TruncatingDivide(0x6000000000000000, 0.5, 0xC000000000000000).check();
-  const TruncatingDivide(2.71828, 3.14159, 0).check();
-  const TruncatingDivide(2.71828, 1, 2).check();
-  const TruncatingDivide(2.71828, -1, -2).check();
-  const TruncatingDivide(-2.71828, 1, -2).check();
-  const TruncatingDivide(-2.71828, -1, 2).check();
-  const TruncatingDivide(27.1828, 3.14159, 8).check();
-  const TruncatingDivide(27.1828, -3.14159, -8).check();
-  const TruncatingDivide(-27.1828, 3.14159, -8).check();
-  const TruncatingDivide(-27.1828, -3.14159, 8).check();
-  const TruncatingDivide(0.0, double.infinity, 0).check();
-  const TruncatingDivide(-0.0, double.infinity, 0).check();
-  const TruncatingDivide(0.0, double.negativeInfinity, 0).check();
-  const TruncatingDivide(-0.0, double.negativeInfinity, 0).check();
-  const TruncatingDivide(42, double.infinity, 0).check();
-  const TruncatingDivide(-42, double.infinity, 0).check();
-  const TruncatingDivide(42, double.negativeInfinity, 0).check();
-  const TruncatingDivide(-42, double.negativeInfinity, 0).check();
-
-  const Divide(27, 3, 9).check();
-  const Divide(27, 1, 27).check();
-  const Divide(27, -1, -27).check();
-  const Divide(-27, 1, -27).check();
-  const Divide(-27, -1, 27).check();
-  const Divide(0, 1, 0).check();
-  const Divide(0, -1, -0.0).check();
-  const Divide(-0.0, 1, -0.0).check();
-  const Divide(-0.0, -1, 0).check();
-  const Divide(314159, 27, 11635.518518518518).check();
-  const Divide(314159, -27, -11635.518518518518).check();
-  const Divide(-314159, 27, -11635.518518518518).check();
-  const Divide(-314159, -27, 11635.518518518518).check();
-  const Divide(4294967295, 4294967296, 0.9999999997671694).check();
-  const Divide(4294967295, -4294967296, -0.9999999997671694).check();
-  const Divide(-4294967295, 4294967296, -0.9999999997671694).check();
-  const Divide(-4294967295, -4294967296, 0.9999999997671694).check();
-  const Divide(9007199254740991, 9007199254740992, 0.9999999999999999).check();
-  const Divide(9007199254740991, -9007199254740992, -0.9999999999999999)
-      .check();
-  const Divide(-9007199254740991, 9007199254740992, -0.9999999999999999)
-      .check();
-  const Divide(-9007199254740991, -9007199254740992, 0.9999999999999999)
-      .check();
-  const Divide(4294967296, 4294967295, 1.0000000002328306).check();
-  const Divide(4294967296, -4294967295, -1.0000000002328306).check();
-  const Divide(-4294967296, 4294967295, -1.0000000002328306).check();
-  const Divide(-4294967296, -4294967295, 1.0000000002328306).check();
-  const Divide(9007199254740992, 9007199254740991, 1.0000000000000002).check();
-  const Divide(9007199254740992, -9007199254740991, -1.0000000000000002)
-      .check();
-  const Divide(-9007199254740992, 9007199254740991, -1.0000000000000002)
-      .check();
-  const Divide(-9007199254740992, -9007199254740991, 1.0000000000000002)
-      .check();
-  const Divide(4294967295, 0.5, 8589934590).check();
-  const Divide(4294967295, -0.5, -8589934590).check();
-  const Divide(-4294967295, 0.5, -8589934590).check();
-  const Divide(-4294967295, -0.5, 8589934590).check();
-  const Divide(9007199254740991, 0.5, 18014398509481982).check();
-  const Divide(9007199254740991, -0.5, -18014398509481982).check();
-  const Divide(-9007199254740991, 0.5, -18014398509481982).check();
-  const Divide(-9007199254740991, -0.5, 18014398509481982).check();
-  const Divide(2.71828, 3.14159, 0.8652561282662601).check();
-  const Divide(2.71828, 1, 2.71828).check();
-  const Divide(2.71828, -1, -2.71828).check();
-  const Divide(-2.71828, 1, -2.71828).check();
-  const Divide(-2.71828, -1, 2.71828).check();
-  const Divide(27.1828, 3.14159, 8.652561282662601).check();
-  const Divide(27.1828, -3.14159, -8.652561282662601).check();
-  const Divide(-27.1828, 3.14159, -8.652561282662601).check();
-  const Divide(-27.1828, -3.14159, 8.652561282662601).check();
-  const Divide(1, 0, double.infinity).check();
-  const Divide(1, -0.0, double.negativeInfinity).check();
-  const Divide(-1, 0, double.negativeInfinity).check();
-  const Divide(-1, -0.0, double.infinity).check();
-  const Divide(0, 0, double.nan).check();
-  const Divide(0, -0.0, double.nan).check();
-  const Divide(-0.0, 0, double.nan).check();
-  const Divide(-0.0, -0.0, double.nan).check();
-  const Divide(double.infinity, 0, double.infinity).check();
-  const Divide(double.infinity, -0.0, double.negativeInfinity).check();
-  const Divide(double.negativeInfinity, 0, double.negativeInfinity).check();
-  const Divide(double.negativeInfinity, -0.0, double.infinity).check();
-  const Divide(double.nan, 0, double.nan).check();
-  const Divide(double.nan, -0.0, double.nan).check();
-  const Divide(double.nan, 1, double.nan).check();
-  const Divide(1, double.nan, double.nan).check();
-  const Divide(0, double.nan, double.nan).check();
-  const Divide(double.nan, double.nan, double.nan).check();
-  const Divide(double.nan, double.infinity, double.nan).check();
-  const Divide(double.infinity, double.nan, double.nan).check();
-  const Divide(double.negativeInfinity, double.nan, double.nan).check();
-  const Divide(double.infinity, 1, double.infinity).check();
-  const Divide(double.infinity, -1, double.negativeInfinity).check();
-  const Divide(double.negativeInfinity, 1, double.negativeInfinity).check();
-  const Divide(double.negativeInfinity, -1, double.infinity).check();
-  const Divide(0, double.infinity, 0).check();
-  const Divide(0, double.negativeInfinity, -0.0).check();
-  const Divide(-0.0, double.infinity, -0.0).check();
-  const Divide(-0.0, double.negativeInfinity, 0).check();
-  const Divide(1, double.infinity, 0).check();
-  const Divide(1, double.negativeInfinity, -0.0).check();
-  const Divide(-1, double.infinity, -0.0).check();
-  const Divide(-1, double.negativeInfinity, 0).check();
-  const Divide(double.infinity, double.infinity, double.nan).check();
-  const Divide(double.minPositive, double.maxFinite, 0).check();
-  const Divide(double.minPositive, -double.maxFinite, -0.0).check();
-  const Divide(-double.minPositive, double.maxFinite, -0.0).check();
-  const Divide(-double.minPositive, -double.maxFinite, 0).check();
-  const Divide(double.maxFinite, double.minPositive, double.infinity).check();
-  const Divide(double.maxFinite, -double.minPositive, double.negativeInfinity)
-      .check();
-  const Divide(-double.maxFinite, double.minPositive, double.negativeInfinity)
-      .check();
-  const Divide(-double.maxFinite, -double.minPositive, double.infinity).check();
-
-  const Add("", "", "").check();
-  const Add("foo", "", "foo").check();
-  const Add("", "bar", "bar").check();
-  const Add("foo", "bar", "foobar").check();
-  const Add(314159, 271828, 585987).check();
-  const Add(314159, -271828, 42331).check();
-  const Add(-314159, 271828, -42331).check();
-  const Add(-314159, -271828, -585987).check();
-  const Add(0, 0, 0).check();
-  const Add(0, 42, 42).check();
-  const Add(0, -42, -42).check();
-  const Add(42, 0, 42).check();
-  const Add(42, 42, 84).check();
-  const Add(42, -42, 0).check();
-  const Add(-42, 0, -42).check();
-  const Add(-42, 42, 0).check();
-  const Add(-42, -42, -84).check();
-  const Add(4294967295, 1, 4294967296).check();
-  const Add(4294967296, 1, 4294967297).check();
-  const Add(9007199254740991, 1, 9007199254740992).check();
-  const Add(9007199254740992, 1, 9007199254740992).check();
-  const Add(9007199254740992, 100, 9007199254741092).check();
-  const Add(-4294967295, -1, -4294967296).check();
-  const Add(-4294967296, -1, -4294967297).check();
-  const Add(-9007199254740991, -1, -9007199254740992).check();
-  const Add(-9007199254740992, -1, -9007199254740992).check();
-  const Add(-9007199254740992, -100, -9007199254741092).check();
-  const Add(4.2, 1.5, 5.7).check();
-  const Add(4.2, -1.5, 2.7).check();
-  const Add(-4.2, 1.5, -2.7).check();
-  const Add(-4.2, -1.5, -5.7).check();
-  const Add(1.5, 0, 1.5).check();
-  const Add(0, 1.5, 1.5).check();
-  const Add(1.5, -1.5, 0.0).check();
-  const Add(-1.5, 1.5, 0.0).check();
-  const Add(0.0, 0.0, 0.0).check();
-  const Add(0.0, -0.0, 0.0).check();
-  const Add(-0.0, 0.0, 0.0).check();
-  const Add(-0.0, -0.0, -0.0).check();
-  const Add(double.maxFinite, double.maxFinite, double.infinity).check();
-  const Add(-double.maxFinite, -double.maxFinite, double.negativeInfinity)
-      .check();
-  const Add(1.5, double.nan, double.nan).check();
-  const Add(double.nan, 1.5, double.nan).check();
-  const Add(double.nan, double.nan, double.nan).check();
-  const Add(double.nan, double.infinity, double.nan).check();
-  const Add(double.nan, double.negativeInfinity, double.nan).check();
-  const Add(double.infinity, double.nan, double.nan).check();
-  const Add(double.negativeInfinity, double.nan, double.nan).check();
-  const Add(double.infinity, -double.maxFinite, double.infinity).check();
-  const Add(double.infinity, double.maxFinite, double.infinity).check();
-  const Add(double.negativeInfinity, -double.maxFinite, double.negativeInfinity)
-      .check();
-  const Add(double.negativeInfinity, double.maxFinite, double.negativeInfinity)
-      .check();
-  const Add(1.5, double.negativeInfinity, double.negativeInfinity).check();
-  const Add(1.5, double.infinity, double.infinity).check();
-  const Add(double.infinity, double.infinity, double.infinity).check();
-  const Add(double.infinity, double.negativeInfinity, double.nan).check();
-  const Add(double.negativeInfinity, double.infinity, double.nan).check();
-  const Add(double.negativeInfinity, double.negativeInfinity,
-          double.negativeInfinity)
-      .check();
-  const Add(double.minPositive, -double.minPositive, 0.0).check();
-  const Add(-double.minPositive, double.minPositive, 0.0).check();
-
-  const Less(double.nan, double.nan, false).check();
-  const Less(double.nan, double.infinity, false).check();
-  const Less(double.infinity, double.nan, false).check();
-  const Less(double.nan, double.maxFinite, false).check();
-  const Less(double.maxFinite, double.nan, false).check();
-  const Less(double.nan, -double.maxFinite, false).check();
-  const Less(-double.maxFinite, double.nan, false).check();
-  const Less(double.nan, double.negativeInfinity, false).check();
-  const Less(double.negativeInfinity, double.nan, false).check();
-  const Less(double.negativeInfinity, double.negativeInfinity, false).check();
-  const Less(double.negativeInfinity, -double.maxFinite, true).check();
-  const Less(-double.maxFinite, double.negativeInfinity, false).check();
-  const Less(-double.maxFinite, -double.maxFinite, false).check();
-  const Less(-double.maxFinite, -9007199254740992, true).check();
-  const Less(-9007199254740992, -double.maxFinite, false).check();
-  const Less(-9007199254740992, -9007199254740992, false).check();
-  const Less(-9007199254740992, -4294967296, true).check();
-  const Less(-4294967296, -9007199254740992, false).check();
-  const Less(-4294967296, -4294967296, false).check();
-  const Less(-4294967296, -42, true).check();
-  const Less(-42, -4294967296, false).check();
-  const Less(-42, -42, false).check();
-  const Less(-42, -42.0, false).check();
-  const Less(-42.0, -42, false).check();
-  const Less(-42.0, -42.0, false).check();
-  const Less(-42, -3.14, true).check();
-  const Less(-3.14, -42, false).check();
-  const Less(-3.14, -3.14, false).check();
-  const Less(-3.14, -double.minPositive, true).check();
-  const Less(-double.minPositive, -3.14, false).check();
-  const Less(-double.minPositive, -double.minPositive, false).check();
-  const Less(-double.minPositive, -0.0, true).check();
-  const Less(-0.0, -double.minPositive, false).check();
-  const Less(-0.0, -0.0, false).check();
-  const Less(0, 0, false).check();
-  const Less(0.0, 0.0, false).check();
-  const Less(-0.0, 0, false).check();
-  const Less(0, -0.0, false).check();
-  const Less(-0.0, 0.0, false).check();
-  const Less(0.0, -0.0, false).check();
-  const Less(0, 0.0, false).check();
-  const Less(0.0, 0, false).check();
-  const Less(0.0, double.minPositive, true).check();
-  const Less(double.minPositive, 0.0, false).check();
-  const Less(double.minPositive, double.minPositive, false).check();
-  const Less(double.minPositive, 3.14, true).check();
-  const Less(3.14, double.minPositive, false).check();
-  const Less(3.14, 3.14, false).check();
-  const Less(3.14, 42, true).check();
-  const Less(42, 3.14, false).check();
-  const Less(42.0, 42.0, false).check();
-  const Less(42, 42.0, false).check();
-  const Less(42.0, 42, false).check();
-  const Less(42, 42, false).check();
-  const Less(42, 4294967296, true).check();
-  const Less(4294967296, 42, false).check();
-  const Less(4294967296, 4294967296, false).check();
-  const Less(4294967296, 9007199254740992, true).check();
-  const Less(9007199254740992, 4294967296, false).check();
-  const Less(9007199254740992, 9007199254740992, false).check();
-  const Less(9007199254740992, double.maxFinite, true).check();
-  const Less(double.maxFinite, 9007199254740992, false).check();
-  const Less(double.maxFinite, double.maxFinite, false).check();
-  const Less(double.maxFinite, double.infinity, true).check();
-  const Less(double.infinity, double.maxFinite, false).check();
-  const Less(double.infinity, double.infinity, false).check();
-  const Less(0x7fffffff00000000, 0x8000000000000000, true).check();
-  const Less(0x8000000000000000, 0x7fffffff00000000, false).check();
-
-  const LessEqual(double.nan, double.nan, false).check();
-  const LessEqual(double.nan, double.infinity, false).check();
-  const LessEqual(double.infinity, double.nan, false).check();
-  const LessEqual(double.nan, double.maxFinite, false).check();
-  const LessEqual(double.maxFinite, double.nan, false).check();
-  const LessEqual(double.nan, -double.maxFinite, false).check();
-  const LessEqual(-double.maxFinite, double.nan, false).check();
-  const LessEqual(double.nan, double.negativeInfinity, false).check();
-  const LessEqual(double.negativeInfinity, double.nan, false).check();
-  const LessEqual(double.negativeInfinity, double.negativeInfinity, true)
-      .check();
-  const LessEqual(double.negativeInfinity, -double.maxFinite, true).check();
-  const LessEqual(-double.maxFinite, double.negativeInfinity, false).check();
-  const LessEqual(-double.maxFinite, -double.maxFinite, true).check();
-  const LessEqual(-double.maxFinite, -9007199254740992, true).check();
-  const LessEqual(-9007199254740992, -double.maxFinite, false).check();
-  const LessEqual(-9007199254740992, -9007199254740992, true).check();
-  const LessEqual(-9007199254740992, -4294967296, true).check();
-  const LessEqual(-4294967296, -9007199254740992, false).check();
-  const LessEqual(-4294967296, -4294967296, true).check();
-  const LessEqual(-4294967296, -42, true).check();
-  const LessEqual(-42, -4294967296, false).check();
-  const LessEqual(-42, -42, true).check();
-  const LessEqual(-42, -42.0, true).check();
-  const LessEqual(-42.0, -42, true).check();
-  const LessEqual(-42.0, -42.0, true).check();
-  const LessEqual(-42, -3.14, true).check();
-  const LessEqual(-3.14, -42, false).check();
-  const LessEqual(-3.14, -3.14, true).check();
-  const LessEqual(-3.14, -double.minPositive, true).check();
-  const LessEqual(-double.minPositive, -3.14, false).check();
-  const LessEqual(-double.minPositive, -double.minPositive, true).check();
-  const LessEqual(-double.minPositive, -0.0, true).check();
-  const LessEqual(-0.0, -double.minPositive, false).check();
-  const LessEqual(-0.0, -0.0, true).check();
-  const LessEqual(0, 0, true).check();
-  const LessEqual(0.0, 0.0, true).check();
-  const LessEqual(-0.0, 0, true).check();
-  const LessEqual(0, -0.0, true).check();
-  const LessEqual(-0.0, 0.0, true).check();
-  const LessEqual(0.0, -0.0, true).check();
-  const LessEqual(0, 0.0, true).check();
-  const LessEqual(0.0, 0, true).check();
-  const LessEqual(0.0, double.minPositive, true).check();
-  const LessEqual(double.minPositive, 0.0, false).check();
-  const LessEqual(double.minPositive, double.minPositive, true).check();
-  const LessEqual(double.minPositive, 3.14, true).check();
-  const LessEqual(3.14, double.minPositive, false).check();
-  const LessEqual(3.14, 3.14, true).check();
-  const LessEqual(3.14, 42, true).check();
-  const LessEqual(42, 3.14, false).check();
-  const LessEqual(42.0, 42.0, true).check();
-  const LessEqual(42, 42.0, true).check();
-  const LessEqual(42.0, 42, true).check();
-  const LessEqual(42, 42, true).check();
-  const LessEqual(42, 4294967296, true).check();
-  const LessEqual(4294967296, 42, false).check();
-  const LessEqual(4294967296, 4294967296, true).check();
-  const LessEqual(4294967296, 9007199254740992, true).check();
-  const LessEqual(9007199254740992, 4294967296, false).check();
-  const LessEqual(9007199254740992, 9007199254740992, true).check();
-  const LessEqual(9007199254740992, double.maxFinite, true).check();
-  const LessEqual(double.maxFinite, 9007199254740992, false).check();
-  const LessEqual(double.maxFinite, double.maxFinite, true).check();
-  const LessEqual(double.maxFinite, double.infinity, true).check();
-  const LessEqual(double.infinity, double.maxFinite, false).check();
-  const LessEqual(double.infinity, double.infinity, true).check();
-  const LessEqual(0x7fffffff00000000, 0x8000000000000000, true).check();
-  const LessEqual(0x8000000000000000, 0x7fffffff00000000, false).check();
-
-  const Greater(double.nan, double.nan, false).check();
-  const Greater(double.nan, double.infinity, false).check();
-  const Greater(double.infinity, double.nan, false).check();
-  const Greater(double.nan, double.maxFinite, false).check();
-  const Greater(double.maxFinite, double.nan, false).check();
-  const Greater(double.nan, -double.maxFinite, false).check();
-  const Greater(-double.maxFinite, double.nan, false).check();
-  const Greater(double.nan, double.negativeInfinity, false).check();
-  const Greater(double.negativeInfinity, double.nan, false).check();
-  const Greater(double.negativeInfinity, double.negativeInfinity, false)
-      .check();
-  const Greater(double.negativeInfinity, -double.maxFinite, false).check();
-  const Greater(-double.maxFinite, double.negativeInfinity, true).check();
-  const Greater(-double.maxFinite, -double.maxFinite, false).check();
-  const Greater(-double.maxFinite, -9007199254740992, false).check();
-  const Greater(-9007199254740992, -double.maxFinite, true).check();
-  const Greater(-9007199254740992, -9007199254740992, false).check();
-  const Greater(-9007199254740992, -4294967296, false).check();
-  const Greater(-4294967296, -9007199254740992, true).check();
-  const Greater(-4294967296, -4294967296, false).check();
-  const Greater(-4294967296, -42, false).check();
-  const Greater(-42, -4294967296, true).check();
-  const Greater(-42, -42, false).check();
-  const Greater(-42, -42.0, false).check();
-  const Greater(-42.0, -42, false).check();
-  const Greater(-42.0, -42.0, false).check();
-  const Greater(-42, -3.14, false).check();
-  const Greater(-3.14, -42, true).check();
-  const Greater(-3.14, -3.14, false).check();
-  const Greater(-3.14, -double.minPositive, false).check();
-  const Greater(-double.minPositive, -3.14, true).check();
-  const Greater(-double.minPositive, -double.minPositive, false).check();
-  const Greater(-double.minPositive, -0.0, false).check();
-  const Greater(-0.0, -double.minPositive, true).check();
-  const Greater(-0.0, -0.0, false).check();
-  const Greater(0, 0, false).check();
-  const Greater(0.0, 0.0, false).check();
-  const Greater(-0.0, 0, false).check();
-  const Greater(0, -0.0, false).check();
-  const Greater(-0.0, 0.0, false).check();
-  const Greater(0.0, -0.0, false).check();
-  const Greater(0, 0.0, false).check();
-  const Greater(0.0, 0, false).check();
-  const Greater(0.0, double.minPositive, false).check();
-  const Greater(double.minPositive, 0.0, true).check();
-  const Greater(double.minPositive, double.minPositive, false).check();
-  const Greater(double.minPositive, 3.14, false).check();
-  const Greater(3.14, double.minPositive, true).check();
-  const Greater(3.14, 3.14, false).check();
-  const Greater(3.14, 42, false).check();
-  const Greater(42, 3.14, true).check();
-  const Greater(42.0, 42.0, false).check();
-  const Greater(42, 42.0, false).check();
-  const Greater(42.0, 42, false).check();
-  const Greater(42, 42, false).check();
-  const Greater(42, 4294967296, false).check();
-  const Greater(4294967296, 42, true).check();
-  const Greater(4294967296, 4294967296, false).check();
-  const Greater(4294967296, 9007199254740992, false).check();
-  const Greater(9007199254740992, 4294967296, true).check();
-  const Greater(9007199254740992, 9007199254740992, false).check();
-  const Greater(9007199254740992, double.maxFinite, false).check();
-  const Greater(double.maxFinite, 9007199254740992, true).check();
-  const Greater(double.maxFinite, double.maxFinite, false).check();
-  const Greater(double.maxFinite, double.infinity, false).check();
-  const Greater(double.infinity, double.maxFinite, true).check();
-  const Greater(double.infinity, double.infinity, false).check();
-  const Greater(0x7fffffff00000000, 0x8000000000000000, false).check();
-  const Greater(0x8000000000000000, 0x7fffffff00000000, true).check();
-
-  const GreaterEqual(double.nan, double.nan, false).check();
-  const GreaterEqual(double.nan, double.infinity, false).check();
-  const GreaterEqual(double.infinity, double.nan, false).check();
-  const GreaterEqual(double.nan, double.maxFinite, false).check();
-  const GreaterEqual(double.maxFinite, double.nan, false).check();
-  const GreaterEqual(double.nan, -double.maxFinite, false).check();
-  const GreaterEqual(-double.maxFinite, double.nan, false).check();
-  const GreaterEqual(double.nan, double.negativeInfinity, false).check();
-  const GreaterEqual(double.negativeInfinity, double.nan, false).check();
-  const GreaterEqual(double.negativeInfinity, double.negativeInfinity, true)
-      .check();
-  const GreaterEqual(double.negativeInfinity, -double.maxFinite, false).check();
-  const GreaterEqual(-double.maxFinite, double.negativeInfinity, true).check();
-  const GreaterEqual(-double.maxFinite, -double.maxFinite, true).check();
-  const GreaterEqual(-double.maxFinite, -9007199254740992, false).check();
-  const GreaterEqual(-9007199254740992, -double.maxFinite, true).check();
-  const GreaterEqual(-9007199254740992, -9007199254740992, true).check();
-  const GreaterEqual(-9007199254740992, -4294967296, false).check();
-  const GreaterEqual(-4294967296, -9007199254740992, true).check();
-  const GreaterEqual(-4294967296, -4294967296, true).check();
-  const GreaterEqual(-4294967296, -42, false).check();
-  const GreaterEqual(-42, -4294967296, true).check();
-  const GreaterEqual(-42, -42, true).check();
-  const GreaterEqual(-42, -42.0, true).check();
-  const GreaterEqual(-42.0, -42, true).check();
-  const GreaterEqual(-42.0, -42.0, true).check();
-  const GreaterEqual(-42, -3.14, false).check();
-  const GreaterEqual(-3.14, -42, true).check();
-  const GreaterEqual(-3.14, -3.14, true).check();
-  const GreaterEqual(-3.14, -double.minPositive, false).check();
-  const GreaterEqual(-double.minPositive, -3.14, true).check();
-  const GreaterEqual(-double.minPositive, -double.minPositive, true).check();
-  const GreaterEqual(-double.minPositive, -0.0, false).check();
-  const GreaterEqual(-0.0, -double.minPositive, true).check();
-  const GreaterEqual(-0.0, -0.0, true).check();
-  const GreaterEqual(0, 0, true).check();
-  const GreaterEqual(0.0, 0.0, true).check();
-  const GreaterEqual(-0.0, 0, true).check();
-  const GreaterEqual(0, -0.0, true).check();
-  const GreaterEqual(-0.0, 0.0, true).check();
-  const GreaterEqual(0.0, -0.0, true).check();
-  const GreaterEqual(0, 0.0, true).check();
-  const GreaterEqual(0.0, 0, true).check();
-  const GreaterEqual(0.0, double.minPositive, false).check();
-  const GreaterEqual(double.minPositive, 0.0, true).check();
-  const GreaterEqual(double.minPositive, double.minPositive, true).check();
-  const GreaterEqual(double.minPositive, 3.14, false).check();
-  const GreaterEqual(3.14, double.minPositive, true).check();
-  const GreaterEqual(3.14, 3.14, true).check();
-  const GreaterEqual(3.14, 42, false).check();
-  const GreaterEqual(42, 3.14, true).check();
-  const GreaterEqual(42.0, 42.0, true).check();
-  const GreaterEqual(42, 42.0, true).check();
-  const GreaterEqual(42.0, 42, true).check();
-  const GreaterEqual(42, 42, true).check();
-  const GreaterEqual(42, 4294967296, false).check();
-  const GreaterEqual(4294967296, 42, true).check();
-  const GreaterEqual(4294967296, 4294967296, true).check();
-  const GreaterEqual(4294967296, 9007199254740992, false).check();
-  const GreaterEqual(9007199254740992, 4294967296, true).check();
-  const GreaterEqual(9007199254740992, 9007199254740992, true).check();
-  const GreaterEqual(9007199254740992, double.maxFinite, false).check();
-  const GreaterEqual(double.maxFinite, 9007199254740992, true).check();
-  const GreaterEqual(double.maxFinite, double.maxFinite, true).check();
-  const GreaterEqual(double.maxFinite, double.infinity, false).check();
-  const GreaterEqual(double.infinity, double.maxFinite, true).check();
-  const GreaterEqual(double.infinity, double.infinity, true).check();
-  const GreaterEqual(0x7fffffff00000000, 0x8000000000000000, false).check();
-  const GreaterEqual(0x8000000000000000, 0x7fffffff00000000, true).check();
-
-  const Equals(null, null, true).check();
-  const Equals(null, "", false).check();
-  const Equals("", null, false).check();
-  const Equals("", "", true).check();
-  const Equals(true, true, true).check();
-  const Equals(false, false, true).check();
-  const Equals(true, false, false).check();
-  const Equals(false, true, false).check();
-  const Equals(0, false, false).check();
-  const Equals(true, 1, false).check();
-  const Equals(double.nan, double.nan, false).check();
-  const Equals(0, 0, true).check();
-  const Equals(0.0, 0.0, true).check();
-  const Equals(-0.0, -0.0, true).check();
-  const Equals(0, 0.0, true).check();
-  const Equals(0.0, 0, true).check();
-  const Equals(0, -0.0, true).check();
-  const Equals(-0.0, 0, true).check();
-  const Equals(0.0, -0.0, true).check();
-  const Equals(-0.0, 0.0, true).check();
-  const Equals(1, 1, true).check();
-  const Equals(1.0, 1.0, true).check();
-  const Equals(1, 1.0, true).check();
-  const Equals(1.0, 1, true).check();
-  const Equals(double.infinity, double.infinity, true).check();
-  const Equals(double.infinity, double.negativeInfinity, false).check();
-  const Equals(double.negativeInfinity, double.infinity, false).check();
-  const Equals(double.negativeInfinity, double.negativeInfinity, true).check();
-  const Equals(0x8000000000000000, 0x8000000000000000, true).check();
-  const Equals(0x8000000000000000, -9223372036854775808, false).check();
-
-  const Identity(null, null, true).check();
-  const Identity(null, "", false).check();
-  const Identity("", null, false).check();
-  const Identity("", "", true).check();
-  const Identity(true, true, true).check();
-  const Identity(false, false, true).check();
-  const Identity(true, false, false).check();
-  const Identity(false, true, false).check();
-  const Identity(0, false, false).check();
-  const Identity(true, 1, false).check();
-  const Identity(double.nan, double.nan, false).check();
-  const Identity(0, 0, true).check();
-  const Identity(0.0, 0.0, true).check();
-  const Identity(-0.0, -0.0, true).check();
-  const Identity(0, 0.0, true).check();
-  const Identity(0.0, 0, true).check();
-  const Identity(0, -0.0, true).check();
-  const Identity(-0.0, 0, true).check();
-  const Identity(0.0, -0.0, true).check();
-  const Identity(-0.0, 0.0, true).check();
-  const Identity(1, 1, true).check();
-  const Identity(1.0, 1.0, true).check();
-  const Identity(1, 1.0, true).check();
-  const Identity(1.0, 1, true).check();
-  const Identity(double.infinity, double.infinity, true).check();
-  const Identity(double.infinity, double.negativeInfinity, false).check();
-  const Identity(double.negativeInfinity, double.infinity, false).check();
-  const Identity(double.negativeInfinity, double.negativeInfinity, true)
-      .check();
-  const Identity(0x8000000000000000, 0x8000000000000000, true).check();
-  const Identity(0x8000000000000000, -9223372036854775808, false).check();
-
-  const IfNull(null, null, null).check();
-  const IfNull(null, 1, 1).check();
-  const IfNull("foo", 1, "foo").check();
-  const IfNull("foo", null, "foo").check();
-}
-
-/// Wraps [Expect.equals] to accommodate JS equality semantics.
-///
-/// Naively using [Expect.equals] causes JS values to be compared with `===`.
-/// This can yield some unintended results:
-///
-/// * Since `NaN === NaN` is `false`, [Expect.equals] will throw even if both
-///   values are `NaN`. Therefore, we check for `NaN` specifically.
-/// * Since `0.0 === -0.0` is `true`, [Expect.equals] will fail to throw if one
-///   constant evaluation results in `0` or `0.0` and the other results in
-///   `-0.0`. Therefore, we additionally check that both values have the same
-///   sign in this case.
-void jsEquals(expected, actual, [String reason = null]) {
-  if (expected is num && actual is num) {
-    if (expected.isNaN && actual.isNaN) return;
-  }
-
-  Expect.equals(expected, actual, reason);
-
-  if (expected == 0 && actual == 0) {
-    Expect.equals(
-        expected.isNegative,
-        actual.isNegative,
-        (reason == null ? "" : "$reason ") +
-            "${expected.toString()} and "
-            "${actual.toString()} have different signs.");
-  }
-}
-
-abstract class TestOp {
-  final expected;
-  final result;
-
-  const TestOp(this.expected, this.result);
-
-  @pragma('dart2js:noInline')
-  checkAll(evalResult) {
-    jsEquals(expected, result,
-        "Frontend constant evaluation does not yield expected value.");
-    jsEquals(expected, evalResult,
-        "Backend constant evaluation does not yield expected value.");
-    jsEquals(expected, eval(), "eval() does not yield expected value.");
-  }
-
-  eval();
-}
-
-class BitNot extends TestOp {
-  final arg;
-
-  const BitNot(this.arg, expected) : super(expected, ~arg);
-
-  @pragma('dart2js:tryInline')
-  check() => checkAll(eval());
-
-  @override
-  @pragma('dart2js:tryInline')
-  eval() => ~arg;
-}
-
-class Negate extends TestOp {
-  final arg;
-
-  const Negate(this.arg, expected) : super(expected, -arg);
-
-  @pragma('dart2js:tryInline')
-  check() => checkAll(eval());
-
-  @override
-  @pragma('dart2js:tryInline')
-  eval() => -arg;
-}
-
-class Not extends TestOp {
-  final arg;
-
-  const Not(this.arg, expected) : super(expected, !arg);
-
-  @pragma('dart2js:tryInline')
-  check() => checkAll(eval());
-
-  @override
-  @pragma('dart2js:tryInline')
-  eval() => !arg;
-}
-
-class BitAnd extends TestOp {
-  final arg1;
-  final arg2;
-
-  const BitAnd(this.arg1, this.arg2, expected) : super(expected, arg1 & arg2);
-
-  @pragma('dart2js:tryInline')
-  check() => checkAll(eval());
-
-  @override
-  @pragma('dart2js:tryInline')
-  eval() => arg1 & arg2;
-}
-
-class BitOr extends TestOp {
-  final arg1;
-  final arg2;
-
-  const BitOr(this.arg1, this.arg2, expected) : super(expected, arg1 | arg2);
-
-  @pragma('dart2js:tryInline')
-  check() => checkAll(eval());
-
-  @override
-  @pragma('dart2js:tryInline')
-  eval() => arg1 | arg2;
-}
-
-class BitXor extends TestOp {
-  final arg1;
-  final arg2;
-
-  const BitXor(this.arg1, this.arg2, expected) : super(expected, arg1 ^ arg2);
-
-  @pragma('dart2js:tryInline')
-  check() => checkAll(eval());
-
-  @override
-  @pragma('dart2js:tryInline')
-  eval() => arg1 ^ arg2;
-}
-
-class ShiftLeft extends TestOp {
-  final arg1;
-  final arg2;
-
-  const ShiftLeft(this.arg1, this.arg2, expected)
-      : super(expected, arg1 << arg2);
-
-  @pragma('dart2js:tryInline')
-  check() => checkAll(eval());
-
-  @override
-  @pragma('dart2js:tryInline')
-  eval() => arg1 << arg2;
-}
-
-class ShiftRight extends TestOp {
-  final arg1;
-  final arg2;
-
-  const ShiftRight(this.arg1, this.arg2, expected)
-      : super(expected, arg1 >> arg2);
-
-  @pragma('dart2js:tryInline')
-  check() => checkAll(eval());
-
-  @override
-  @pragma('dart2js:tryInline')
-  eval() => arg1 >> arg2;
-}
-
-class BooleanAnd extends TestOp {
-  final arg1;
-  final arg2;
-
-  const BooleanAnd(this.arg1, this.arg2, expected)
-      : super(expected, arg1 && arg2);
-
-  @pragma('dart2js:tryInline')
-  check() => checkAll(eval());
-
-  @override
-  @pragma('dart2js:tryInline')
-  eval() => arg1 && arg2;
-}
-
-class BooleanOr extends TestOp {
-  final arg1;
-  final arg2;
-
-  const BooleanOr(this.arg1, this.arg2, expected)
-      : super(expected, arg1 || arg2);
-
-  @pragma('dart2js:tryInline')
-  check() => checkAll(eval());
-
-  @override
-  @pragma('dart2js:tryInline')
-  eval() => arg1 || arg2;
-}
-
-class Subtract extends TestOp {
-  final arg1;
-  final arg2;
-
-  const Subtract(this.arg1, this.arg2, expected) : super(expected, arg1 - arg2);
-
-  @pragma('dart2js:tryInline')
-  check() => checkAll(eval());
-
-  @override
-  @pragma('dart2js:tryInline')
-  eval() => arg1 - arg2;
-}
-
-class Multiply extends TestOp {
-  final arg1;
-  final arg2;
-
-  const Multiply(this.arg1, this.arg2, expected) : super(expected, arg1 * arg2);
-
-  @pragma('dart2js:tryInline')
-  check() => checkAll(eval());
-
-  @override
-  @pragma('dart2js:tryInline')
-  eval() => arg1 * arg2;
-}
-
-class Modulo extends TestOp {
-  final arg1;
-  final arg2;
-
-  const Modulo(this.arg1, this.arg2, expected) : super(expected, arg1 % arg2);
-
-  @pragma('dart2js:tryInline')
-  check() => checkAll(eval());
-
-  @override
-  @pragma('dart2js:tryInline')
-  eval() => arg1 % arg2;
-}
-
-class TruncatingDivide extends TestOp {
-  final arg1;
-  final arg2;
-
-  const TruncatingDivide(this.arg1, this.arg2, expected)
-      : super(expected, arg1 ~/ arg2);
-
-  @pragma('dart2js:tryInline')
-  check() => checkAll(eval());
-
-  @override
-  @pragma('dart2js:tryInline')
-  eval() => arg1 ~/ arg2;
-}
-
-class Divide extends TestOp {
-  final arg1;
-  final arg2;
-
-  const Divide(this.arg1, this.arg2, expected) : super(expected, arg1 / arg2);
-
-  @pragma('dart2js:tryInline')
-  check() => checkAll(eval());
-
-  @override
-  @pragma('dart2js:tryInline')
-  eval() => arg1 / arg2;
-}
-
-class Add extends TestOp {
-  final arg1;
-  final arg2;
-
-  const Add(this.arg1, this.arg2, expected) : super(expected, arg1 + arg2);
-
-  @pragma('dart2js:tryInline')
-  check() => checkAll(eval());
-
-  @pragma('dart2js:tryInline')
-  eval() => arg1 + arg2;
-}
-
-class Less extends TestOp {
-  final arg1;
-  final arg2;
-
-  const Less(this.arg1, this.arg2, expected) : super(expected, arg1 < arg2);
-
-  @pragma('dart2js:tryInline')
-  check() => checkAll(eval());
-
-  @pragma('dart2js:tryInline')
-  eval() => arg1 < arg2;
-}
-
-class LessEqual extends TestOp {
-  final arg1;
-  final arg2;
-
-  const LessEqual(this.arg1, this.arg2, expected)
-      : super(expected, arg1 <= arg2);
-
-  @pragma('dart2js:tryInline')
-  check() => checkAll(eval());
-
-  @pragma('dart2js:tryInline')
-  eval() => arg1 <= arg2;
-}
-
-class Greater extends TestOp {
-  final arg1;
-  final arg2;
-
-  const Greater(this.arg1, this.arg2, expected) : super(expected, arg1 > arg2);
-
-  @pragma('dart2js:tryInline')
-  check() => checkAll(eval());
-
-  @pragma('dart2js:tryInline')
-  eval() => arg1 > arg2;
-}
-
-class GreaterEqual extends TestOp {
-  final arg1;
-  final arg2;
-
-  const GreaterEqual(this.arg1, this.arg2, expected)
-      : super(expected, arg1 >= arg2);
-
-  @pragma('dart2js:tryInline')
-  check() => checkAll(eval());
-
-  @pragma('dart2js:tryInline')
-  eval() => arg1 >= arg2;
-}
-
-class Equals extends TestOp {
-  final arg1;
-  final arg2;
-
-  const Equals(this.arg1, this.arg2, expected) : super(expected, arg1 == arg2);
-
-  @pragma('dart2js:tryInline')
-  check() => checkAll(eval());
-
-  @pragma('dart2js:tryInline')
-  eval() => arg1 == arg2;
-}
-
-class Identity extends TestOp {
-  final arg1;
-  final arg2;
-
-  const Identity(this.arg1, this.arg2, expected)
-      : super(expected, identical(arg1, arg2));
-
-  @pragma('dart2js:tryInline')
-  check() => checkAll(eval());
-
-  @pragma('dart2js:tryInline')
-  eval() => identical(arg1, arg2);
-}
-
-class IfNull extends TestOp {
-  final arg1;
-  final arg2;
-
-  const IfNull(this.arg1, this.arg2, expected) : super(expected, arg1 ?? arg2);
-
-  @pragma('dart2js:tryInline')
-  check() => checkAll(eval());
-
-  @pragma('dart2js:tryInline')
-  eval() => arg1 ?? arg2;
-}
diff --git a/tests/web_2/constant_javascript_semantics2_test.dart b/tests/web_2/constant_javascript_semantics2_test.dart
deleted file mode 100644
index 858d88b830a..00000000000
--- a/tests/web_2/constant_javascript_semantics2_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-// Make sure we use JavaScript semantics when compiling compile-time constants.
-// In this case we test that the value-range analysis uses JavaScript semantics
-// too.
-
-int inscrutable(int x) => x == 0 ? 0 : x | inscrutable(x & (x - 1));
-
-foo() {
-  var a = const [1, 2];
-  var i = 0x100000000;
-  if (inscrutable(i) == 0) {
-    i = 0x100000001;
-  }
-  i = 0xFFFFFFFFF & i; // In JS semantics [:i:] will be truncated to 32 bits.
-  i = 0x100000001 - i;
-  return a[i];
-}
-
-main() {
-  Expect.throws(() => foo(), (e) => e is RangeError);
-}
diff --git a/tests/web_2/constant_javascript_semantics3_test.dart b/tests/web_2/constant_javascript_semantics3_test.dart
deleted file mode 100644
index bfbfd8c4ad9..00000000000
--- a/tests/web_2/constant_javascript_semantics3_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-// Make sure we use JavaScript semantics when compiling compile-time constants.
-// In this case we test that the value-range analysis uses JavaScript semantics
-// too.
-
-int inscrutable(int x) {
-  if (x == 0) return 0;
-  return x | inscrutable(x & (x - 1));
-}
-
-foo() {
-  var a = const [1, 2, 3, 4];
-  var i = 8007199254740992;
-  if (inscrutable(i) == 0) {
-    i++;
-  }
-  i += 1000000000000000;
-  // [i] is now at its maximum 53 bit value. The following increments will not
-  // have any effect.
-  i++;
-  i++;
-  i++;
-  i -= 1000000000000000;
-  i--;
-  i--;
-  i--;
-  i -= 8007199254740992; // In JS semantics [i] would be -3, now.
-  return a[i];
-}
-
-main() {
-  Expect.throws(() => foo(), (e) => e is RangeError);
-}
diff --git a/tests/web_2/constant_javascript_semantics_test5.dart b/tests/web_2/constant_javascript_semantics_test5.dart
deleted file mode 100644
index 94041a48210..00000000000
--- a/tests/web_2/constant_javascript_semantics_test5.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-// Make sure we can assert(const Foo() != null) in const initializers.
-class Color {
-  const Color(this.value);
-  final int value;
-}
-
-class ColorHaver {
-  const ColorHaver({this.color = const Color(0xFF000000)})
-      : assert(color != null);
-  final Color color;
-}
-
-const c = const ColorHaver(color: const Color(0xFF00FF00));
-
-enum Enum {
-  a,
-  b,
-}
-
-class EnumHaver {
-  const EnumHaver({this.myEnum: Enum.a}) : assert(myEnum != null);
-  final Enum myEnum;
-}
-
-const e = const EnumHaver(myEnum: Enum.b);
-
-main() {
-  Expect.equals(c.value, 0xFF00FF00);
-  Expect.equals(e.myEnum, Enum.b);
-}
diff --git a/tests/web_2/constant_truncate_test.dart b/tests/web_2/constant_truncate_test.dart
deleted file mode 100644
index 8fbe6b43a00..00000000000
--- a/tests/web_2/constant_truncate_test.dart
+++ /dev/null
@@ -1,119 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-const a0 = 0 ~/ 0; //# a0: compile-time error
-const a1 = 0.0 ~/ 0; //# a1: compile-time error
-const a2 = -0.0 ~/ 0; //# a2: compile-time error
-const a3 = double.nan ~/ 0; //# a3: compile-time error
-const a4 = double.infinity ~/ 0; //# a4: compile-time error
-const a5 = double.negativeInfinity ~/ 0; //# a5: compile-time error
-
-const b0 = 0 ~/ 0.0; //# b0: compile-time error
-const b1 = 0.0 ~/ 0.0; //# b1: compile-time error
-const b2 = -0.0 ~/ 0.0; //# b2: compile-time error
-const b3 = double.nan ~/ 0.0; //# b3: compile-time error
-const b4 = double.infinity ~/ 0.0; //# b4: compile-time error
-const b5 = double.negativeInfinity ~/ 0.0; //# b5: compile-time error
-
-const c0 = 0 ~/ -0.0; //# c0: compile-time error
-const c1 = 0.0 ~/ -0.0; //# c1: compile-time error
-const c2 = -0.0 ~/ -0.0; //# c2: compile-time error
-const c3 = double.nan ~/ -0.0; //# c3: compile-time error
-const c4 = double.infinity ~/ -0.0; //# c4: compile-time error
-const c5 = double.negativeInfinity ~/ -0.0; //# c5: compile-time error
-
-const d0 = 0 ~/ double.nan; //# d0: compile-time error
-const d1 = 0.0 ~/ double.nan; //# d1: compile-time error
-const d2 = -0.0 ~/ double.nan; //# d2: compile-time error
-const d3 = double.nan ~/ double.nan; //# d3: compile-time error
-const d4 = double.infinity ~/ double.nan; //# d4: compile-time error
-const d5 = double.negativeInfinity ~/ double.nan; //# d5: compile-time error
-
-const e0 = 0 ~/ double.infinity; //# e0: ok
-const e1 = 0.0 ~/ double.infinity; //# e1: ok
-const e2 = -0.0 ~/ double.infinity; //# e2: ok
-const e3 = double.nan ~/ double.infinity; //# e3: compile-time error
-const e4 = double.infinity ~/ double.infinity; //# e4: compile-time error
-const e5 = double.negativeInfinity ~/ double.infinity; //# e5: compile-time error
-
-const f0 = 0 ~/ double.negativeInfinity; //# f0: ok
-const f1 = 0.0 ~/ double.negativeInfinity; //# f1: ok
-const f2 = -0.0 ~/ double.negativeInfinity; //# f2: ok
-const f3 = double.nan ~/ double.negativeInfinity; //# f3: compile-time error
-const f4 = double.infinity ~/ double.negativeInfinity; //# f4: compile-time error
-const f5 = double.negativeInfinity ~/ double.negativeInfinity; //# f5: compile-time error
-
-main() {
-  test(0, 0, () => a0); //# a0: continued
-  test(0.0, 0, () => a1); //# a1: continued
-  test(-0.0, 0, () => a2); //# a2: continued
-  test(double.nan, 0, () => a3); //# a3: continued
-  test(double.infinity, 0, () => a4); //# a4: continued
-  test(double.negativeInfinity, 0, () => a5); //# a5: continued
-
-  test(0, 0.0, () => b0); //# b0: continued
-  test(0.0, 0.0, () => b1); //# b1: continued
-  test(-0.0, 0.0, () => b2); //# b2: continued
-  test(double.nan, 0.0, () => b3); //# b3: continued
-  test(double.infinity, 0.0, () => b4); //# b4: continued
-  test(double.negativeInfinity, 0.0, () => b5); //# b5: continued
-
-  test(0, -0.0, () => c0); //# c0: continued
-  test(0.0, -0.0, () => c1); //# c1: continued
-  test(-0.0, -0.0, () => c2); //# c2: continued
-  test(double.nan, -0.0, () => c3); //# c3: continued
-  test(double.infinity, -0.0, () => c4); //# c4: continued
-  test(double.negativeInfinity, -0.0, () => c5); //# c5: continued
-
-  test(0, double.nan, () => d0); //# d0: continued
-  test(0.0, double.nan, () => d1); //# d1: continued
-  test(-0.0, double.nan, () => d2); //# d2: continued
-  test(double.nan, double.nan, () => d3); //# d3: continued
-  test(double.infinity, double.nan, () => d4); //# d4: continued
-  test(double.negativeInfinity, double.nan, () => d5); //# d5: continued
-
-  test(0, double.infinity, () => e0); //# e0: continued
-  test(0.0, double.infinity, () => e1); //# e1: continued
-  test(-0.0, double.infinity, () => e2); //# e2: continued
-  test(double.nan, double.infinity, () => e3); //# e3: continued
-  test(double.infinity, double.infinity, () => e4); //# e4: continued
-  test(double.negativeInfinity, double.infinity, () => e5); //# e5: continued
-
-  test(0, double.negativeInfinity, () => f0); //# f0: continued
-  test(0.0, double.negativeInfinity, () => f1); //# f1: continued
-  test(-0.0, double.negativeInfinity, () => f2); //# f2: continued
-  test(double.nan, double.negativeInfinity, () => f3); //# f3: continued
-  test(double.infinity, double.negativeInfinity, () => f4); //# f4: continued
-  test(double.negativeInfinity, double.negativeInfinity, () => f5); //# f5: continued
-}
-
-void test(num a, num b, num Function() f) {
-  num result;
-  try {
-    result = a ~/ b;
-    print('$a ~/ $b = $result');
-  } catch (e) {
-    print('$a ~/ $b throws $e');
-    throws(f);
-    return;
-  }
-  expect(f(), result);
-}
-
-void expect(expected, actual) {
-  if (expected != actual) {
-    throw 'Expected $expected, actual $actual';
-  }
-}
-
-void throws(num Function() f) {
-  try {
-    f();
-  } catch (e) {
-    return;
-  }
-  throw 'Expected exception';
-}
diff --git a/tests/web_2/crash_library_metadata.dart b/tests/web_2/crash_library_metadata.dart
deleted file mode 100644
index 5b74d2334eb..00000000000
--- a/tests/web_2/crash_library_metadata.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-@Constant()
-library foo;
-
-class Constant {
-  const Constant();
-}
diff --git a/tests/web_2/data_uri_test.dart b/tests/web_2/data_uri_test.dart
deleted file mode 100644
index 1d1ef1e0ac3..00000000000
--- a/tests/web_2/data_uri_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "data:,var%20x=#_a._b;var%20y=#a._b;var%20z=#_b;";
-
-main() {
-  print(x);
-  print(x == #_a._b);
-  print(y);
-  print(y == #a._b);
-  print(z);
-  print(z == #_b);
-}
diff --git a/tests/web_2/deferred/34219_bounds_lib1.dart b/tests/web_2/deferred/34219_bounds_lib1.dart
deleted file mode 100644
index 7b7c8b8049f..00000000000
--- a/tests/web_2/deferred/34219_bounds_lib1.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Part of 34219_bounds_test.dart
-
-import '34219_bounds_lib2.dart';
-
-class SystemMessage extends GeneratedMessage {}
-
-var g;
-
-test1() {
-  new GeneratedMessage();
-  g = (<T extends SystemMessage>(T a, T b) => a == b);
-}
diff --git a/tests/web_2/deferred/34219_bounds_lib2.dart b/tests/web_2/deferred/34219_bounds_lib2.dart
deleted file mode 100644
index cb96b0edcf7..00000000000
--- a/tests/web_2/deferred/34219_bounds_lib2.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Part of 34219_bounds_test.dart
-
-class GeneratedMessage {}
diff --git a/tests/web_2/deferred/34219_bounds_lib3.dart b/tests/web_2/deferred/34219_bounds_lib3.dart
deleted file mode 100644
index 4221d511a67..00000000000
--- a/tests/web_2/deferred/34219_bounds_lib3.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Part of 34219_bounds_test.dart
-//
-// This library places GeneratedMessage into a different partition to
-// SystemMessage.
-
-import '34219_bounds_lib2.dart';
-
-test3() {
-  new GeneratedMessage();
-}
diff --git a/tests/web_2/deferred/34219_bounds_test.dart b/tests/web_2/deferred/34219_bounds_test.dart
deleted file mode 100644
index 1247f33c76e..00000000000
--- a/tests/web_2/deferred/34219_bounds_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-// dart2jsOptions=--omit-implicit-checks
-
-// Tests that generic function type bounds are walked as dependencies of a
-// closure. If the generic function bounds are not visited, SystemMessage is
-// placed in the main unit while it's superclass GeneratedMessage is placed in a
-// deferred part.
-
-import '34219_bounds_lib1.dart' deferred as lib1;
-import '34219_bounds_lib3.dart' deferred as lib3;
-
-main() async {
-  await lib1.loadLibrary();
-  lib1.test1();
-  await lib3.loadLibrary();
-  lib3.test3();
-  if (lib1.g is bool Function(Object, Object)) print('!');
-}
diff --git a/tests/web_2/deferred/34219_signature_lib1.dart b/tests/web_2/deferred/34219_signature_lib1.dart
deleted file mode 100644
index 87887654b78..00000000000
--- a/tests/web_2/deferred/34219_signature_lib1.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Part of 34219_signature_test.dart
-
-import '34219_signature_lib2.dart';
-
-class SystemMessage extends GeneratedMessage {}
-
-var g;
-
-test1() {
-  new GeneratedMessage();
-  g = (SystemMessage a, SystemMessage b) => a == b;
-}
diff --git a/tests/web_2/deferred/34219_signature_lib2.dart b/tests/web_2/deferred/34219_signature_lib2.dart
deleted file mode 100644
index b801bb940e8..00000000000
--- a/tests/web_2/deferred/34219_signature_lib2.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Part of 34219_signature_test.dart
-
-class GeneratedMessage {}
diff --git a/tests/web_2/deferred/34219_signature_lib3.dart b/tests/web_2/deferred/34219_signature_lib3.dart
deleted file mode 100644
index 1d12aa629af..00000000000
--- a/tests/web_2/deferred/34219_signature_lib3.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Part of 34219_signature_test.dart
-//
-// This library places GeneratedMessage into a different partition to
-// SystemMessage.
-
-import '34219_signature_lib2.dart';
-
-test3() {
-  new GeneratedMessage();
-}
diff --git a/tests/web_2/deferred/34219_signature_test.dart b/tests/web_2/deferred/34219_signature_test.dart
deleted file mode 100644
index fc5d240dd4c..00000000000
--- a/tests/web_2/deferred/34219_signature_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-// dart2jsOptions=--omit-implicit-checks
-
-// Tests that closure signatures are walked as dependencies of a closure. If the
-// signature of the closure is not visited, SystemMessage is placed in the main
-// unit while it's superclass GeneratedMessage is placed in a deferred part.
-
-import '34219_signature_lib1.dart' deferred as lib1;
-import '34219_signature_lib3.dart' deferred as lib3;
-
-main() async {
-  await lib1.loadLibrary();
-  lib1.test1();
-  await lib3.loadLibrary();
-  lib3.test3();
-  if (lib1.g is bool Function(Object, Object)) print('!');
-}
diff --git a/tests/web_2/deferred/default_arg_is_tearoff_lib.dart b/tests/web_2/deferred/default_arg_is_tearoff_lib.dart
deleted file mode 100644
index 6be58fdf4e7..00000000000
--- a/tests/web_2/deferred/default_arg_is_tearoff_lib.dart
+++ /dev/null
@@ -1,8 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-defaultArg() => "";
-myFunction([argumentName = defaultArg]) => argumentName();
diff --git a/tests/web_2/deferred/default_arg_is_tearoff_test.dart b/tests/web_2/deferred/default_arg_is_tearoff_test.dart
deleted file mode 100644
index 2341f447b2a..00000000000
--- a/tests/web_2/deferred/default_arg_is_tearoff_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-/// Regression test for https://github.com/dart-lang/sdk/issues/30002.
-///
-/// The compiler used to keep all metadata (other than type information) in one
-/// global table that was shipped with the main output unit.  For most metadata
-/// this was OK because it was referring to strings and other simple constants.
-/// However, we also allow to refer to tear-offs of top-level functions. When
-/// that top-level function was assigned to a deferred fragment, the metadata
-/// initialization would simply fail.
-import 'default_arg_is_tearoff_lib.dart' deferred as lib;
-
-main() => lib.loadLibrary().then((_) {
-      // Call via Function.apply to ensure he metadata is generated
-      Function.apply(lib.myFunction, []);
-    });
diff --git a/tests/web_2/deferred/deferred_class_library.dart b/tests/web_2/deferred/deferred_class_library.dart
deleted file mode 100644
index 46ee69d479e..00000000000
--- a/tests/web_2/deferred/deferred_class_library.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Imported by deferred_class_test.dart.
-
-library deferred_class_library;
-
-class MyClass {
-  const MyClass();
-
-  foo(x) {
-    print('MyClass.foo($x)');
-    return (x - 3) ~/ 2;
-  }
-}
-
-class Constant {
-  final value;
-  const Constant(this.value);
-
-  operator ==(other) => other is Constant && value == other.value;
-  get hashCode => 0;
-}
diff --git a/tests/web_2/deferred/deferred_class_library2.dart b/tests/web_2/deferred/deferred_class_library2.dart
deleted file mode 100644
index e09654ff68e..00000000000
--- a/tests/web_2/deferred/deferred_class_library2.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Imported by deferred_class_test.dart.
-
-library deferred_class_library2;
-
-class MyClass {
-  const MyClass();
-
-  foo(x) {
-    print('MyClass.foo($x)');
-    return (x - 3) ~/ 2;
-  }
-}
-
-class Constant {
-  final value;
-  const Constant(this.value);
-
-  operator ==(other) => other is Constant && value == other.value;
-  get hashCode => 0;
-}
-
-const C1 = const Constant(499);
-const C2 = const [const Constant(99)];
-
-foo([x = const Constant(42)]) => x;
-bar() => const Constant(777);
-
-class Gee {
-  get value => c.value;
-  final c;
-
-  Gee([this.c = const Constant(111)]);
-  const Gee.n321([this.c = const Constant(321)]);
-  Gee.n135({arg: const Constant(135)}) : this.c = arg;
-  const Gee.n246({arg: const Constant(246)}) : this.c = arg;
-  const Gee.n888() : this.c = const Constant(888);
-  const Gee.constant(this.c);
-}
-
-class Gee2 extends Gee {
-  Gee2() : super(const Constant(979));
-  const Gee2.n321() : super.n321();
-  const Gee2.n151() : super.constant(const Constant(151));
-  const Gee2.n888() : super.n888();
-}
diff --git a/tests/web_2/deferred/deferred_class_test.dart b/tests/web_2/deferred/deferred_class_test.dart
deleted file mode 100644
index 15698aaa4a5..00000000000
--- a/tests/web_2/deferred/deferred_class_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-import 'dart:async';
-
-import 'deferred_class_library.dart' deferred as lib;
-
-bool isError(e) => e is Error;
-
-main() {
-  var x;
-  Expect.throws(() {
-    x = new lib.MyClass();
-  }, isError);
-  Expect.isNull(x);
-  int counter = 0;
-  asyncStart();
-  lib.loadLibrary().then((_) {
-    Expect.equals(1, ++counter);
-    print('deferred_class_library was loaded');
-    x = new lib.MyClass();
-    Expect.equals(42, x.foo(87));
-    asyncEnd();
-  });
-  Expect.equals(0, counter);
-  Expect.isNull(x);
-  asyncStart();
-  lib.loadLibrary().then((_) {
-    Expect.equals(2, ++counter);
-    print('deferred_class_library was loaded');
-    x = new lib.MyClass();
-    Expect.equals(42, x.foo(87));
-    asyncEnd();
-  });
-  Expect.equals(0, counter);
-  Expect.isNull(x);
-  Expect.throws(() {
-    x = new lib.MyClass();
-  }, isError);
-  Expect.isNull(x);
-}
diff --git a/tests/web_2/deferred/deferred_constant2_test.dart b/tests/web_2/deferred/deferred_constant2_test.dart
deleted file mode 100644
index d8f0f110d2a..00000000000
--- a/tests/web_2/deferred/deferred_constant2_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-import 'dart:async';
-
-import 'deferred_class_library2.dart' deferred as lib;
-
-main() {
-  asyncStart();
-  lib.loadLibrary().then((_) {
-    Expect.equals(499, lib.C1.value);
-    asyncEnd();
-  });
-}
diff --git a/tests/web_2/deferred/deferred_constant3_test.dart b/tests/web_2/deferred/deferred_constant3_test.dart
deleted file mode 100644
index b91934fac73..00000000000
--- a/tests/web_2/deferred/deferred_constant3_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-import 'dart:async';
-
-import 'deferred_class_library2.dart' deferred as lib;
-
-main() {
-  asyncStart();
-  lib.loadLibrary().then((_) {
-    Expect.equals(499, lib.C1.value);
-    Expect.equals(99, lib.C2[0].value);
-    Expect.equals(42, lib.foo().value);
-    Expect.equals(777, lib.bar().value);
-    Expect.equals(111, new lib.Gee().value);
-    Expect.equals(321, new lib.Gee.n321().value);
-    Expect.equals(135, new lib.Gee.n135().value);
-    Expect.equals(246, new lib.Gee.n246().value);
-    Expect.equals(888, new lib.Gee.n888().value);
-    Expect.equals(979, new lib.Gee2().value);
-    Expect.equals(321, new lib.Gee2.n321().value);
-    Expect.equals(151, new lib.Gee2.n151().value);
-    Expect.equals(888, new lib.Gee2.n888().value);
-    asyncEnd();
-  });
-}
diff --git a/tests/web_2/deferred/deferred_constant4_test.dart b/tests/web_2/deferred/deferred_constant4_test.dart
deleted file mode 100644
index b14f649edf6..00000000000
--- a/tests/web_2/deferred/deferred_constant4_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-import 'deferred_class_library2.dart' deferred as lib;
-
-main() {
-  asyncStart();
-  lib.loadLibrary().then((_) {
-    // Only Gee2.n888 to make sure no other constant pulls in its super.
-    Expect.equals(888, new lib.Gee2.n888().value);
-    asyncEnd();
-  });
-}
diff --git a/tests/web_2/deferred/deferred_constant_dependency_evaluation_test.dart b/tests/web_2/deferred/deferred_constant_dependency_evaluation_test.dart
deleted file mode 100644
index 3c7cf33b309..00000000000
--- a/tests/web_2/deferred/deferred_constant_dependency_evaluation_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// This is a regression test for dartbug.com/26406. We test that the deferred
-// loader analyzer doesn't trip over constant expression evaluation.
-//
-// Today the task uses constant values to calculate dependencies, and only uses
-// those values that were previously computed by resolution. A change to compute
-// the value on-demand made the deferred task evaluate more expressions,
-// including expressions with free variables (which can't be evaluated). See the
-// dartbug.com/26406 for details on how we plan to make the task more robust.
-
-// import is only used to trigger the deferred task
-import 'deferred_class_library.dart' deferred as lib;
-
-class A {
-  final int x;
-
-  const A(bool foo)
-      // The deferred task would crash trying to compute the value here, where
-      // [foo] is a free variable.
-      : x = foo ? 1 : 0;
-}
-
-main() => const A(true);
diff --git a/tests/web_2/deferred/deferred_function_library.dart b/tests/web_2/deferred/deferred_function_library.dart
deleted file mode 100644
index 120c4a32575..00000000000
--- a/tests/web_2/deferred/deferred_function_library.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Imported by deferred_function_test.dart and
-// deferred_semantics_test.dart.
-
-library deferred_function_library;
-
-foo(x) {
-  print('foo($x)');
-  return 42;
-}
diff --git a/tests/web_2/deferred/deferred_function_test.dart b/tests/web_2/deferred/deferred_function_test.dart
deleted file mode 100644
index d8e550c9351..00000000000
--- a/tests/web_2/deferred/deferred_function_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that loading of a library (with top-level functions only) can
-// be deferred.
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-
-import 'deferred_function_library.dart' deferred as lib;
-
-bool isError(e) => e is Error;
-
-readFoo() {
-  return lib.foo;
-}
-
-main() {
-  Expect.throws(() {
-    lib.foo('a');
-  }, isError);
-  Expect.throws(readFoo, isError);
-  int counter = 0;
-  asyncStart();
-  lib.loadLibrary().then((_) {
-    Expect.equals(1, ++counter);
-    print('lazy was loaded');
-    Expect.equals(42, lib.foo('b'));
-    Expect.isNotNull(readFoo());
-    asyncEnd();
-  });
-  Expect.equals(0, counter);
-  asyncStart();
-  lib.loadLibrary().then((_) {
-    Expect.equals(2, ++counter);
-    print('lazy was loaded');
-    Expect.equals(42, lib.foo('b'));
-    Expect.isNotNull(readFoo());
-    asyncEnd();
-  });
-  Expect.equals(0, counter);
-  Expect.throws(() {
-    lib.foo('a');
-  }, isError);
-  Expect.throws(readFoo, isError);
-}
diff --git a/tests/web_2/deferred/deferred_metadata_lib.dart b/tests/web_2/deferred/deferred_metadata_lib.dart
deleted file mode 100644
index b973458a5ff..00000000000
--- a/tests/web_2/deferred/deferred_metadata_lib.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-class Annotation {
-  final annotationField;
-  const Annotation([this.annotationField]);
-}
-
-class X {
-  @Annotation()
-  int xvalue = 3;
-}
-
-foo() {
-  X x = new X();
-  return x.xvalue++;
-}
diff --git a/tests/web_2/deferred/deferred_metadata_test.dart b/tests/web_2/deferred/deferred_metadata_test.dart
deleted file mode 100644
index 588cb76cc74..00000000000
--- a/tests/web_2/deferred/deferred_metadata_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-/// Regression tests to ensure that member metadata is not considered by the
-/// deferred loading algorithm, unless mirrors are available.
-///
-/// This test was failing in the past because the deferred-loading algorithm was
-/// adding entities to the K-element-map after we had closed the world and we
-/// had created the J-element-map.  Later, when we convert the K annotation to
-/// its J counterpart, we couldn't find it in the conversion maps because it was
-/// added too late.
-///
-/// If we add support for mirrors in the future, we just need to ensure that
-/// such K annotations are discovered during resolution, before the deferred
-/// loading phase.
-
-import 'deferred_metadata_lib.dart' deferred as d show foo;
-
-main() async {
-  await d.loadLibrary();
-  print(d.foo());
-}
diff --git a/tests/web_2/deferred/deferred_mirrors2_lib2.dart b/tests/web_2/deferred/deferred_mirrors2_lib2.dart
deleted file mode 100644
index 2e3a2385154..00000000000
--- a/tests/web_2/deferred/deferred_mirrors2_lib2.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-library lib2;
-
-import 'deferred_mirrors2_lazy.dart' deferred as admin;
diff --git a/tests/web_2/deferred/deferred_mirrors2_lib4.dart b/tests/web_2/deferred/deferred_mirrors2_lib4.dart
deleted file mode 100644
index accf1258a36..00000000000
--- a/tests/web_2/deferred/deferred_mirrors2_lib4.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'deferred_mirrors2_lib5.dart' show Injectable;
-
-@Injectable()
-class A {}
diff --git a/tests/web_2/deferred/deferred_mirrors2_lib5.dart b/tests/web_2/deferred/deferred_mirrors2_lib5.dart
deleted file mode 100644
index f449e4d1b85..00000000000
--- a/tests/web_2/deferred/deferred_mirrors2_lib5.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-class Injectable {
-  const Injectable();
-}
diff --git a/tests/web_2/deferred/deferred_overlapping_lib1.dart b/tests/web_2/deferred/deferred_overlapping_lib1.dart
deleted file mode 100644
index 53b0e5003f0..00000000000
--- a/tests/web_2/deferred/deferred_overlapping_lib1.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "deferred_overlapping_lib3.dart";
-
-class C1 extends C3 {}
diff --git a/tests/web_2/deferred/deferred_overlapping_lib2.dart b/tests/web_2/deferred/deferred_overlapping_lib2.dart
deleted file mode 100644
index 1771c90d4ff..00000000000
--- a/tests/web_2/deferred/deferred_overlapping_lib2.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "deferred_overlapping_lib3.dart";
-
-class C2 extends C3 {}
diff --git a/tests/web_2/deferred/deferred_overlapping_lib3.dart b/tests/web_2/deferred/deferred_overlapping_lib3.dart
deleted file mode 100644
index 5f2e7c7c911..00000000000
--- a/tests/web_2/deferred/deferred_overlapping_lib3.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-class C3 {}
diff --git a/tests/web_2/deferred/deferred_overlapping_test.dart b/tests/web_2/deferred/deferred_overlapping_test.dart
deleted file mode 100644
index 4703ba7ee6b..00000000000
--- a/tests/web_2/deferred/deferred_overlapping_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "deferred_overlapping_lib1.dart" deferred as lib1;
-import "deferred_overlapping_lib2.dart" deferred as lib2;
-
-// lib1.C1 and lib2.C2 has a shared base class It will go in its own hunk.
-// If lib1 or lib2s hunks are loaded before the common hunk, the program
-// will fail because the base class does not exist.
-void main() {
-  lib1.loadLibrary().then((_) {
-    var a = new lib1.C1();
-    lib2.loadLibrary().then((_) {
-      var b = new lib2.C2();
-    });
-  });
-}
diff --git a/tests/web_2/deferred/deferred_unused_classes_test.dart b/tests/web_2/deferred/deferred_unused_classes_test.dart
deleted file mode 100644
index 37196010054..00000000000
--- a/tests/web_2/deferred/deferred_unused_classes_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that deferred loader analyzer doesn't trip over unused classes.
-
-import "package:expect/expect.dart";
-import 'dart:async';
-
-import 'deferred_class_library.dart' deferred as lib;
-
-class Base {}
-
-class DerivedNotUsed extends Base {}
-
-main() {}
diff --git a/tests/web_2/deferred/interface_type_variable_lib.dart b/tests/web_2/deferred/interface_type_variable_lib.dart
deleted file mode 100644
index fecdc821b9e..00000000000
--- a/tests/web_2/deferred/interface_type_variable_lib.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-class A {}
-
-class I<T> {}
-
-// C needs to include "N", otherwise checking for `is I<A>` will likely cause
-// problems
-class C extends A implements I<N> {}
-
-class N extends A {}
-
-doCheck(x) => x is I<A>;
diff --git a/tests/web_2/deferred/interface_type_variable_test.dart b/tests/web_2/deferred/interface_type_variable_test.dart
deleted file mode 100644
index 98af6f71d29..00000000000
--- a/tests/web_2/deferred/interface_type_variable_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-import 'interface_type_variable_lib.dart' deferred as lib;
-
-/// Regression test: if a type variable is used, but not instantiated, it still
-/// needs to be mapped to the deferred unit where it is used.
-///
-/// If not, we may include it in the main unit and may not see that the base
-/// class is not added to the main unit.
-main() {
-  lib.loadLibrary().then((_) {
-    lib.doCheck(dontInline(new lib.C()));
-  });
-}
-
-@pragma('dart2js:noInline')
-dontInline(x) => x;
diff --git a/tests/web_2/deferred/multiple_default_arg_lib1.dart b/tests/web_2/deferred/multiple_default_arg_lib1.dart
deleted file mode 100644
index 2f654fe6d8c..00000000000
--- a/tests/web_2/deferred/multiple_default_arg_lib1.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-defaultArg1() => 1;
-defaultArg2() => 2;
-myFunction1({argumentName1: defaultArg1, argumentName2: defaultArg2}) =>
-    "${argumentName1()} - ${argumentName2()}";
diff --git a/tests/web_2/deferred/multiple_default_arg_lib2.dart b/tests/web_2/deferred/multiple_default_arg_lib2.dart
deleted file mode 100644
index 62b487e2800..00000000000
--- a/tests/web_2/deferred/multiple_default_arg_lib2.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-defaultArg3() => 3;
-defaultArg4() => 4;
-myFunction2({argumentName3: defaultArg3, argumentName4: defaultArg4}) =>
-    "${argumentName3()} - ${argumentName4()}";
diff --git a/tests/web_2/deferred/multiple_default_arg_lib3.dart b/tests/web_2/deferred/multiple_default_arg_lib3.dart
deleted file mode 100644
index 1fb289c873f..00000000000
--- a/tests/web_2/deferred/multiple_default_arg_lib3.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-defaultArg3() => "3b";
-defaultArg4() => "4b";
-myFunction3(positional1, positional2,
-        {argumentName3: defaultArg3, argumentName4: defaultArg4}) =>
-    "$positional1 $positional2 ${argumentName3()} - ${argumentName4()}";
-
-myFunction4(positional1, positional2,
-        {argumentName5: const X(5), argumentName6}) =>
-    argumentName5.value;
-
-class X {
-  final int value;
-  const X(this.value);
-}
-
-const value3 = const X(3);
diff --git a/tests/web_2/deferred/multiple_default_arg_test.dart b/tests/web_2/deferred/multiple_default_arg_test.dart
deleted file mode 100644
index f356e77b66d..00000000000
--- a/tests/web_2/deferred/multiple_default_arg_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-/// This test is indirectly testing invariants of the generated code of dart2js.
-/// It ensures that indices to metadata information from **multiple** deferred
-/// fragments is kept separate, but that when they are loaded (and the metadata
-/// array is merged) all accesses to the metadata array is done correctly.
-///
-/// This kind of metadata is generated when using Function.apply to
-/// store default values and parameter names.
-import 'multiple_default_arg_lib1.dart' deferred as lib1;
-import 'multiple_default_arg_lib2.dart' deferred as lib2;
-import 'multiple_default_arg_lib3.dart' deferred as lib3;
-import 'package:expect/expect.dart';
-import 'package:async_helper/async_helper.dart';
-
-main() {
-  asyncTest(() async {
-    await lib1.loadLibrary();
-    await lib2.loadLibrary();
-
-    Expect.equals(
-        Function.apply(lib1.myFunction1, [], {#argumentName1: () => "A"}),
-        "A - 2");
-
-    Expect.equals(
-        Function.apply(lib2.myFunction2, [], {#argumentName4: () => "B"}),
-        "3 - B");
-
-    await lib3.loadLibrary();
-
-    Expect.equals(
-        Function.apply(
-            lib3.myFunction3, ["x", "y"], {#argumentName4: () => "C"}),
-        "x y 3b - C");
-
-    Expect.equals(
-        Function.apply(lib3.myFunction3, ["x", "y"], {}), "x y 3b - 4b");
-
-    Expect.equals(Function.apply(lib3.myFunction4, ["x", "y"], {}), 5);
-    Expect.equals(
-        Function.apply(
-            lib3.myFunction4, ["x", "y"], {#argumentName5: new lib3.X(4)}),
-        4);
-    Expect.equals(
-        Function.apply(
-            lib3.myFunction4, ["x", "y"], {#argumentName5: lib3.value3}),
-        3);
-  });
-}
diff --git a/tests/web_2/deferred/reflect_multiple_annotations_lib1.dart b/tests/web_2/deferred/reflect_multiple_annotations_lib1.dart
deleted file mode 100644
index 5ae2bbc2678..00000000000
--- a/tests/web_2/deferred/reflect_multiple_annotations_lib1.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-topLevelF() => 1;
-
-@MetaA("one")
-@MetaA(topLevelF)
-myFunction1(@MetaA("param") f1) {
-  return f1;
-  return f1;
-}
-
-class MetaA {
-  final value;
-  const MetaA(this.value);
-
-  static isCheck(v) => v is MetaA;
-
-  String toString() => "MetaA($value)";
-}
diff --git a/tests/web_2/deferred/reflect_multiple_annotations_lib2.dart b/tests/web_2/deferred/reflect_multiple_annotations_lib2.dart
deleted file mode 100644
index 930436f53d7..00000000000
--- a/tests/web_2/deferred/reflect_multiple_annotations_lib2.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-@MetaB("lib")
-library foo;
-
-@MetaB("class")
-class A {}
-
-class MetaB {
-  final value;
-  const MetaB(this.value);
-
-  String toString() => "MetaB($value)";
-}
diff --git a/tests/web_2/deferred/reflect_multiple_default_arg_lib1.dart b/tests/web_2/deferred/reflect_multiple_default_arg_lib1.dart
deleted file mode 100644
index 7f4aba966a9..00000000000
--- a/tests/web_2/deferred/reflect_multiple_default_arg_lib1.dart
+++ /dev/null
@@ -1,8 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-defaultArg1() => 1;
-myFunction1([argumentName1 = defaultArg1]) => argumentName1();
diff --git a/tests/web_2/deferred/reflect_multiple_default_arg_lib2.dart b/tests/web_2/deferred/reflect_multiple_default_arg_lib2.dart
deleted file mode 100644
index 22cfd11c28f..00000000000
--- a/tests/web_2/deferred/reflect_multiple_default_arg_lib2.dart
+++ /dev/null
@@ -1,8 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-defaultArg2() => 2;
-myFunction2([argumentName2 = defaultArg2]) => argumentName2();
diff --git a/tests/web_2/deferred/shared_constant_a.dart b/tests/web_2/deferred/shared_constant_a.dart
deleted file mode 100644
index d5520d5a282..00000000000
--- a/tests/web_2/deferred/shared_constant_a.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'shared_constant_shared.dart' deferred as d;
-
-doA() async {
-  await d.loadLibrary();
-  return d.constant;
-}
diff --git a/tests/web_2/deferred/shared_constant_b.dart b/tests/web_2/deferred/shared_constant_b.dart
deleted file mode 100644
index 655a93bbac3..00000000000
--- a/tests/web_2/deferred/shared_constant_b.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'shared_constant_shared.dart' deferred as d;
-
-doB() async {
-  await d.loadLibrary();
-  return d.constant;
-}
diff --git a/tests/web_2/deferred/shared_constant_c.dart b/tests/web_2/deferred/shared_constant_c.dart
deleted file mode 100644
index aef7eff06e2..00000000000
--- a/tests/web_2/deferred/shared_constant_c.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-class C {
-  const C();
-  method() => print("1");
-}
diff --git a/tests/web_2/deferred/shared_constant_shared.dart b/tests/web_2/deferred/shared_constant_shared.dart
deleted file mode 100644
index cc3bc232d37..00000000000
--- a/tests/web_2/deferred/shared_constant_shared.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'shared_constant_c.dart';
-
-const constant = const C(); // using `var` eludes the problem.
diff --git a/tests/web_2/deferred/shared_constant_test.dart b/tests/web_2/deferred/shared_constant_test.dart
deleted file mode 100644
index d01b67f0dab..00000000000
--- a/tests/web_2/deferred/shared_constant_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-/// Regression test for issue https://github.com/dart-lang/sdk/issues/31306.
-///
-/// When 1 constant was imported in two libraries by using the same exact
-/// deferred import URI, the deferred-constant initializer was incorrectly moved
-/// to the main output unit.
-
-import 'shared_constant_a.dart';
-import 'shared_constant_b.dart';
-
-main() async {
-  (await doA()).method();
-  await doB();
-}
diff --git a/tests/web_2/deferred/type_literal_lib.dart b/tests/web_2/deferred/type_literal_lib.dart
deleted file mode 100644
index 105162f4dc9..00000000000
--- a/tests/web_2/deferred/type_literal_lib.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-class A {}
-
-class B {}
diff --git a/tests/web_2/deferred/type_literal_test.dart b/tests/web_2/deferred/type_literal_test.dart
deleted file mode 100644
index 79c7b29cc15..00000000000
--- a/tests/web_2/deferred/type_literal_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for Issue #33890.
-//
-// This fails if type literal constants are not deferred, but their RTI
-// representation is. This test however will not detect if we accidentally start
-// building the RTI representation in the main deferred unit (which is what was
-// happening before the bug was introduced).
-
-import 'type_literal_lib.dart' deferred as a;
-import 'package:expect/expect.dart';
-
-main() async {
-  await a.loadLibrary();
-  Expect.isFalse(confuse(a.A) == confuse(a.B));
-}
-
-@pragma('dart2js:noInline')
-confuse(x) => x;
diff --git a/tests/web_2/deferred/typedef_lib.dart b/tests/web_2/deferred/typedef_lib.dart
deleted file mode 100644
index 70b7740b8c9..00000000000
--- a/tests/web_2/deferred/typedef_lib.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-class A {}
-
-class B {}
-
-typedef C(A a);
-typedef D(B a);
diff --git a/tests/web_2/deferred/typedef_test.dart b/tests/web_2/deferred/typedef_test.dart
deleted file mode 100644
index 3c45d81e8f0..00000000000
--- a/tests/web_2/deferred/typedef_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for Issue #33890.
-//
-// This fails if type literal constants are not deferred, but their RTI
-// representation is. This test however will not detect if we accidentally start
-// building the RTI representation in the main deferred unit (which is what was
-// happening before the bug was introduced).
-
-import 'typedef_lib.dart' deferred as a;
-import 'package:expect/expect.dart';
-
-main() async {
-  await a.loadLibrary();
-  print(a.A); // unclear why without this the definition of A and B gets pulled
-  print(a.B); // into the main output unit.
-  Expect.isFalse(confuse(a.C) == confuse(a.D));
-}
-
-@pragma('dart2js:noInline')
-confuse(x) => x;
diff --git a/tests/web_2/deferred/uninstantiated_type_variable_lib.dart b/tests/web_2/deferred/uninstantiated_type_variable_lib.dart
deleted file mode 100644
index 4780e81fb42..00000000000
--- a/tests/web_2/deferred/uninstantiated_type_variable_lib.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// All of these types are considered instantiated because we create an instance
-// of [C].
-
-class A {}
-
-class Box<T> {
-  int value;
-}
-
-class B<T> extends A {
-  final box = new Box<T>();
-}
-
-class C extends B<N> {}
-
-// N is not instantiated, but used as a type argument in C and indirectly in a
-// Box<N>.
-// If we don't mark it as part of the output unit of C, we accidentally add it
-// to the main output unit. However, A is in the output unit of C so we fail
-// when trying to finalize the declaration of N while loading the main output
-// unit.
-class N extends A {}
diff --git a/tests/web_2/deferred/uninstantiated_type_variable_test.dart b/tests/web_2/deferred/uninstantiated_type_variable_test.dart
deleted file mode 100644
index 1d6c2f28ab9..00000000000
--- a/tests/web_2/deferred/uninstantiated_type_variable_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-import 'uninstantiated_type_variable_lib.dart' deferred as lib;
-
-/// Regression test: if a type variable is used, but not instantiated, it still
-/// needs to be mapped to the deferred unit where it is used.
-///
-/// If not, we may include it in the main unit and may not see that the base
-/// class is not added to the main unit.
-main() {
-  lib.loadLibrary().then((_) {
-    dontInline(new lib.C()).box.value;
-  });
-}
-
-@pragma('dart2js:noInline')
-dontInline(x) => x;
diff --git a/tests/web_2/deferred_fail_and_retry_lib.dart b/tests/web_2/deferred_fail_and_retry_lib.dart
deleted file mode 100644
index 606c26ede57..00000000000
--- a/tests/web_2/deferred_fail_and_retry_lib.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-foo() {
-  return "loaded";
-}
diff --git a/tests/web_2/deferred_fail_and_retry_test.dart b/tests/web_2/deferred_fail_and_retry_test.dart
deleted file mode 100644
index bd4ad7855d8..00000000000
--- a/tests/web_2/deferred_fail_and_retry_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that when a deferred import fails to load, it is possible to retry.
-
-import "deferred_fail_and_retry_lib.dart" deferred as lib;
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-import "dart:js" as js;
-
-main() {
-  // We patch document.body.appendChild to change the script src on first
-  // invocation.
-  js.context.callMethod("eval", [
-    """
-    retryCount = 0;
-    if (self.document && self.document.body) {
-      oldAppendChild = document.body.appendChild;
-      replacement = function(element) {
-        element.src = "non_existing.js";
-        document.body.appendChild = oldAppendChild;
-        document.body.appendChild(element);
-        if (retryCount < 3) {
-          retryCount++;
-          document.body.appendChild = replacement;
-        }
-      }
-      document.body.appendChild = replacement;
-    }
-    if (self.load) {
-      oldLoad = load;
-      replacement = function(uri) {
-        load = oldLoad;
-        load("non_existing.js");
-        if (retryCount < 3) {
-          retryCount++;
-          load = replacement;
-        }
-      }
-      load = replacement;
-    }
-  """
-  ]);
-
-  asyncStart();
-  lib.loadLibrary().then((_) {
-    Expect.fail("Library should not have loaded");
-  }, onError: (error) {
-    lib.loadLibrary().then((_) {
-      Expect.equals("loaded", lib.foo());
-    }, onError: (error) {
-      Expect.fail("Library should have loaded this time");
-    }).whenComplete(() {
-      asyncEnd();
-    });
-  });
-}
diff --git a/tests/web_2/deferred_function_types1_test.dart b/tests/web_2/deferred_function_types1_test.dart
deleted file mode 100644
index 607c1407e9f..00000000000
--- a/tests/web_2/deferred_function_types1_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-import 'deferred_function_types_lib1.dart' deferred as lib1;
-import 'deferred_function_types_lib2.dart' deferred as lib2;
-
-main() {
-  asyncTest(() async {
-    await lib1.loadLibrary();
-    Expect.isTrue(lib1.method1() is int Function(int));
-    Expect.isFalse(lib1.method1() is String Function(String));
-    await lib2.loadLibrary();
-    Expect.isFalse(lib2.method2() is int Function(int));
-    Expect.isTrue(lib2.method2() is String Function(String));
-  });
-}
diff --git a/tests/web_2/deferred_function_types2_test.dart b/tests/web_2/deferred_function_types2_test.dart
deleted file mode 100644
index 087996efa31..00000000000
--- a/tests/web_2/deferred_function_types2_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-import 'deferred_function_types_lib1.dart' deferred as lib1;
-import 'deferred_function_types_lib2.dart' deferred as lib2;
-
-main() {
-  asyncTest(() async {
-    await lib2.loadLibrary();
-    Expect.isFalse(lib2.method2() is int Function(int));
-    Expect.isTrue(lib2.method2() is String Function(String));
-    await lib1.loadLibrary();
-    Expect.isTrue(lib1.method1() is int Function(int));
-    Expect.isFalse(lib1.method1() is String Function(String));
-  });
-}
diff --git a/tests/web_2/deferred_function_types3_test.dart b/tests/web_2/deferred_function_types3_test.dart
deleted file mode 100644
index 06968223f26..00000000000
--- a/tests/web_2/deferred_function_types3_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-import 'deferred_function_types_lib1.dart' deferred as lib1;
-import 'deferred_function_types_lib2.dart' deferred as lib2;
-
-main() {
-  asyncTest(() async {
-    await lib1.loadLibrary();
-    Expect.isTrue(lib1.method3() is Object Function(Null));
-    Expect.isFalse(lib1.method3() is Object Function(Null, Null));
-    await lib2.loadLibrary();
-    Expect.isFalse(lib2.method4() is Object Function(Null));
-    Expect.isTrue(lib2.method4() is Object Function(Null, Null));
-  });
-}
diff --git a/tests/web_2/deferred_function_types4_test.dart b/tests/web_2/deferred_function_types4_test.dart
deleted file mode 100644
index 3277948001c..00000000000
--- a/tests/web_2/deferred_function_types4_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-import 'deferred_function_types_lib1.dart' deferred as lib1;
-import 'deferred_function_types_lib2.dart' deferred as lib2;
-
-main() {
-  asyncTest(() async {
-    await lib2.loadLibrary();
-    Expect.isFalse(lib2.method4() is Object Function(Null));
-    Expect.isTrue(lib2.method4() is Object Function(Null, Null));
-    await lib1.loadLibrary();
-    Expect.isTrue(lib1.method3() is Object Function(Null));
-    Expect.isFalse(lib1.method3() is Object Function(Null, Null));
-  });
-}
diff --git a/tests/web_2/deferred_function_types5_test.dart b/tests/web_2/deferred_function_types5_test.dart
deleted file mode 100644
index 33fb076bcd8..00000000000
--- a/tests/web_2/deferred_function_types5_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-import 'deferred_function_types_lib1.dart' deferred as lib1;
-import 'deferred_function_types_lib2.dart' deferred as lib2;
-
-main() {
-  asyncTest(() async {
-    await lib1.loadLibrary();
-    Expect.isTrue(lib1.test3(lib1.method3()));
-    Expect.isFalse(lib1.method3() is Object Function(String));
-    await lib2.loadLibrary();
-    Expect.isFalse(lib2.method4() is Object Function(String, String));
-    Expect.isTrue(lib2.test4(lib2.method4()));
-  });
-}
diff --git a/tests/web_2/deferred_function_types6_test.dart b/tests/web_2/deferred_function_types6_test.dart
deleted file mode 100644
index 14105a984d8..00000000000
--- a/tests/web_2/deferred_function_types6_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-import 'deferred_function_types_lib1.dart' deferred as lib1;
-import 'deferred_function_types_lib2.dart' deferred as lib2;
-
-main() {
-  asyncTest(() async {
-    await lib2.loadLibrary();
-    Expect.isFalse(lib2.method4() is Object Function(String, String));
-    Expect.isTrue(lib2.test4(lib2.method4()));
-    await lib1.loadLibrary();
-    Expect.isTrue(lib1.test3(lib1.method3()));
-    Expect.isFalse(lib1.method3() is Object Function(String));
-  });
-}
diff --git a/tests/web_2/deferred_function_types7_test.dart b/tests/web_2/deferred_function_types7_test.dart
deleted file mode 100644
index 38163a589bd..00000000000
--- a/tests/web_2/deferred_function_types7_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-import 'deferred_function_types_lib1.dart' deferred as lib1;
-import 'deferred_function_types_lib2.dart' deferred as lib2;
-
-main() {
-  asyncTest(() async {
-    await lib1.loadLibrary();
-    Expect.isTrue(lib1.method1() is int Function(int));
-    Expect.isFalse(lib1.method1() is String Function(String));
-    Expect.isTrue(lib1.method5 is Object Function(Null, String, int));
-    Expect.isFalse(lib1.method5 is Object Function(Null, int, String));
-    Expect.isTrue(lib1.test5(lib1.method5));
-    await lib2.loadLibrary();
-    Expect.isFalse(lib2.method2() is int Function(int));
-    Expect.isTrue(lib2.method2() is String Function(String));
-    Expect.isFalse(lib2.method6 is Object Function(Null, String, int));
-    Expect.isTrue(lib2.method6 is Object Function(Null, int, String));
-    Expect.isTrue(lib2.test6(lib2.method6));
-  });
-}
diff --git a/tests/web_2/deferred_function_types8_test.dart b/tests/web_2/deferred_function_types8_test.dart
deleted file mode 100644
index 35abeb84f33..00000000000
--- a/tests/web_2/deferred_function_types8_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-import 'deferred_function_types_lib1.dart' deferred as lib1;
-import 'deferred_function_types_lib2.dart' deferred as lib2;
-
-main() {
-  asyncTest(() async {
-    await lib2.loadLibrary();
-    Expect.isFalse(lib2.method2() is int Function(int));
-    Expect.isTrue(lib2.method2() is String Function(String));
-    Expect.isFalse(lib2.method6 is Object Function(Null, String, int));
-    Expect.isTrue(lib2.method6 is Object Function(Null, int, String));
-    Expect.isTrue(lib2.test6(lib2.method6));
-    await lib1.loadLibrary();
-    Expect.isTrue(lib1.method1() is int Function(int));
-    Expect.isFalse(lib1.method1() is String Function(String));
-    Expect.isTrue(lib1.method5 is Object Function(Null, String, int));
-    Expect.isFalse(lib1.method5 is Object Function(Null, int, String));
-    Expect.isTrue(lib1.test5(lib1.method5));
-  });
-}
diff --git a/tests/web_2/deferred_function_types_lib1.dart b/tests/web_2/deferred_function_types_lib1.dart
deleted file mode 100644
index da32827af2f..00000000000
--- a/tests/web_2/deferred_function_types_lib1.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-method1() {
-  return (int i) => i;
-}
-
-class Class1 {}
-
-method3() {
-  return (Class1 c) => c;
-}
-
-test3(o) => o is Class1 Function(Class1);
-
-method5(Class1 c, String s, int i) {}
-
-test5(o) => o is Function(Class1, String, int);
diff --git a/tests/web_2/deferred_function_types_lib2.dart b/tests/web_2/deferred_function_types_lib2.dart
deleted file mode 100644
index 2ab9a1cdff2..00000000000
--- a/tests/web_2/deferred_function_types_lib2.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-method2() {
-  return (String s) => s;
-}
-
-class Class2 {}
-
-method4() {
-  return (Class2 c1, Class2 c2) => c1;
-}
-
-test4(o) => o is Class2 Function(Class2, Class2);
-
-method6(Class2 c, int i, String s) {}
-
-test6(o) => o is Function(Class2, int, String);
diff --git a/tests/web_2/deferred_inheritance_lib1.dart b/tests/web_2/deferred_inheritance_lib1.dart
deleted file mode 100644
index 27d7c8b1562..00000000000
--- a/tests/web_2/deferred_inheritance_lib1.dart
+++ /dev/null
@@ -1,5 +0,0 @@
-
-// @dart = 2.9
-import 'deferred_inheritance_lib2.dart';
-
-class C extends A {}
diff --git a/tests/web_2/deferred_inheritance_lib2.dart b/tests/web_2/deferred_inheritance_lib2.dart
deleted file mode 100644
index c2ba23be936..00000000000
--- a/tests/web_2/deferred_inheritance_lib2.dart
+++ /dev/null
@@ -1,3 +0,0 @@
-
-// @dart = 2.9
-class A {}
diff --git a/tests/web_2/deferred_inheritance_test.dart b/tests/web_2/deferred_inheritance_test.dart
deleted file mode 100644
index 8f16b55893b..00000000000
--- a/tests/web_2/deferred_inheritance_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-/// Regression test for --fast-startup. The compiler used to emit inherit calls
-/// on each fragment even for classes that were already loaded on a different
-/// fragment. As a result, the inheritance chain was overwritten in non-chrome
-/// browsers (by using __proto__, we evaded this issue in Chrome).
-library deferred_inheritance_test;
-
-import 'deferred_inheritance_lib2.dart';
-import 'deferred_inheritance_lib1.dart' deferred as d;
-
-import 'package:expect/expect.dart';
-
-class B extends A {}
-
-/// If the check `y is A` is generated as `y.$isA` then the issue is not
-/// exposed. We use `assumeDynamic` to ensure that we generate as `y instanceof
-/// A` in JS.
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-check(y) => Expect.isTrue(y is A);
-
-main() {
-  check(new B());
-  d.loadLibrary().then((_) {
-    check(new d.C());
-    check(new B()); // This fails if we overwrite the inheritance chain.
-  });
-}
diff --git a/tests/web_2/deferred_split_lib1.dart b/tests/web_2/deferred_split_lib1.dart
deleted file mode 100644
index 9f809901f97..00000000000
--- a/tests/web_2/deferred_split_lib1.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Library loaded eagerly by deferred_split_test.dart
-
-class A<T> {}
diff --git a/tests/web_2/deferred_split_lib2.dart b/tests/web_2/deferred_split_lib2.dart
deleted file mode 100644
index a97fef1e677..00000000000
--- a/tests/web_2/deferred_split_lib2.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Deferred library loaded by deferred_split_test.dart
-
-import 'deferred_split_lib1.dart';
-
-createA() => new A();
diff --git a/tests/web_2/deferred_split_test.dart b/tests/web_2/deferred_split_test.dart
deleted file mode 100644
index 9b47f7d9875..00000000000
--- a/tests/web_2/deferred_split_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-/// Regression for issue 23853: we used to incorrectly split and put a type in a
-/// deferred hunk if the type was used explicitly in the deferred library and
-/// was used only in a generic type in the main library.
-library compiler.test.dart2js_extra.deferred_split_test;
-
-import 'deferred_split_lib1.dart';
-import 'deferred_split_lib2.dart' deferred as b;
-
-class TypeLiteral<T> {
-  Type get type => T;
-}
-
-main() {
-  // This line failed with a runtime error prior to the fix:
-  new TypeLiteral<A<Object>>().type;
-
-  b.loadLibrary().then((_) => b.createA());
-}
diff --git a/tests/web_2/deferred_tearoff_load_library_lib.dart b/tests/web_2/deferred_tearoff_load_library_lib.dart
deleted file mode 100644
index 76dc8d15835..00000000000
--- a/tests/web_2/deferred_tearoff_load_library_lib.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-foo() {
-  return "loaded";
-}
diff --git a/tests/web_2/deferred_tearoff_load_library_test.dart b/tests/web_2/deferred_tearoff_load_library_test.dart
deleted file mode 100644
index f4510e99777..00000000000
--- a/tests/web_2/deferred_tearoff_load_library_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that tearoffs of `loadLibrary` work properly.
-//
-// The CFE chooses a non identifier name for `loadLibrary` methods, this test
-// ensures that not only we properly escape the name of the method but also the
-// name of the derived tearoff closure.
-import "deferred_tearoff_load_library_lib.dart" deferred as lib;
-
-import "package:async_helper/async_helper.dart";
-
-@pragma('dart2js:noInline')
-get tearoff => lib.loadLibrary;
-
-main() {
-  asyncStart();
-  tearoff().then((_) => asyncEnd());
-}
diff --git a/tests/web_2/deferred_with_cross_origin_lib.dart b/tests/web_2/deferred_with_cross_origin_lib.dart
deleted file mode 100644
index 606c26ede57..00000000000
--- a/tests/web_2/deferred_with_cross_origin_lib.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-foo() {
-  return "loaded";
-}
diff --git a/tests/web_2/deferred_with_cross_origin_test.dart b/tests/web_2/deferred_with_cross_origin_test.dart
deleted file mode 100644
index 76a85b49505..00000000000
--- a/tests/web_2/deferred_with_cross_origin_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that code loaded via deferred imports uses the same crossorigin value as
-// the main page.
-
-import "deferred_with_cross_origin_lib.dart" deferred as lib;
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-import "dart:html";
-
-main() {
-  asyncStart();
-
-  var scripts = document
-      .querySelectorAll<ScriptElement>('script')
-      .where((s) => s.src.contains("generated_compilations"))
-      .toList();
-  Expect.equals(1, scripts.length);
-  Expect.equals(null, scripts.first.crossOrigin);
-  scripts.first.crossOrigin = "anonymous";
-
-  lib.loadLibrary().then((_) {
-    print(lib.foo());
-    var scripts = document
-        .querySelectorAll<ScriptElement>('script')
-        .where((s) => s.src.contains("generated_compilations"))
-        .toList();
-    Expect.equals(2, scripts.length);
-    for (var script in scripts) {
-      Expect.equals("anonymous", script.crossOrigin);
-    }
-    asyncEnd();
-  });
-}
diff --git a/tests/web_2/deferred_with_csp_nonce2_test.dart b/tests/web_2/deferred_with_csp_nonce2_test.dart
deleted file mode 100644
index b21858ee830..00000000000
--- a/tests/web_2/deferred_with_csp_nonce2_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that code loaded via deferred imports uses the same nonce value as the
-// main page.
-
-import "deferred_with_csp_nonce_lib.dart" deferred as lib;
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-import "dart:html";
-
-main() {
-  asyncStart();
-
-  var scripts = document
-      .querySelectorAll<ScriptElement>('script')
-      .where((s) => s.src.contains("generated_compilations"))
-      .toList();
-  Expect.equals(1, scripts.length);
-  Expect.equals('', scripts.first.nonce ?? '');
-  Expect.equals('', scripts.first.getAttribute('nonce') ?? '');
-  scripts.first.setAttribute("nonce", "an-example-nonce-string");
-
-  lib.loadLibrary().then((_) {
-    print(lib.foo());
-    var scripts = document
-        .querySelectorAll<ScriptElement>('script')
-        .where((s) => s.src.contains(".part.js"))
-        .toList();
-    Expect.equals(1, scripts.length);
-    for (var script in scripts) {
-      Expect.equals("an-example-nonce-string", script.nonce);
-      Expect.equals("an-example-nonce-string", script.getAttribute('nonce'));
-    }
-    asyncEnd();
-  });
-}
diff --git a/tests/web_2/deferred_with_csp_nonce_lib.dart b/tests/web_2/deferred_with_csp_nonce_lib.dart
deleted file mode 100644
index 606c26ede57..00000000000
--- a/tests/web_2/deferred_with_csp_nonce_lib.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-foo() {
-  return "loaded";
-}
diff --git a/tests/web_2/deferred_with_csp_nonce_test.dart b/tests/web_2/deferred_with_csp_nonce_test.dart
deleted file mode 100644
index 8409c2b9a22..00000000000
--- a/tests/web_2/deferred_with_csp_nonce_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that code loaded via deferred imports uses the same nonce value as the
-// main page.
-
-import "deferred_with_csp_nonce_lib.dart" deferred as lib;
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-import "dart:html";
-
-main() {
-  asyncStart();
-
-  var scripts = document
-      .querySelectorAll<ScriptElement>('script')
-      .where((s) => s.src.contains("generated_compilations"))
-      .toList();
-  Expect.equals(1, scripts.length);
-  Expect.equals('', scripts.first.nonce ?? '');
-  Expect.equals('', scripts.first.getAttribute('nonce') ?? '');
-  scripts.first.nonce = "an-example-nonce-string";
-
-  lib.loadLibrary().then((_) {
-    print(lib.foo());
-    var scripts = document
-        .querySelectorAll<ScriptElement>('script')
-        .where((s) => s.src.contains(".part.js"))
-        .toList();
-    Expect.equals(1, scripts.length);
-    for (var script in scripts) {
-      Expect.equals("an-example-nonce-string", script.nonce);
-      Expect.equals("an-example-nonce-string", script.getAttribute('nonce'));
-    }
-    asyncEnd();
-  });
-}
diff --git a/tests/web_2/do_test.dart b/tests/web_2/do_test.dart
deleted file mode 100644
index ecc3ce9c53e..00000000000
--- a/tests/web_2/do_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-void do1() {
-  bool cond = true;
-  var result = 0;
-  var x = 0;
-  do {
-    if (x == 10) cond = false;
-    result += x;
-    x = x + 1;
-  } while (cond);
-  Expect.equals(55, result);
-}
-
-void do2() {
-  var t = 0;
-  var i = 0;
-  do {
-    t = t + 10;
-    i++;
-  } while (i == 0);
-  Expect.equals(10, t);
-}
-
-void do3() {
-  var i = 0;
-  do {
-    i++;
-  } while (false);
-  Expect.equals(1, i);
-}
-
-void do4() {
-  var cond1 = true;
-  var result = 0;
-  var i = 0;
-  do {
-    if (i == 9) cond1 = false;
-    var cond2 = true;
-    var j = 0;
-    do {
-      if (j == 9) cond2 = false;
-      result = result + 1;
-      j = j + 1;
-    } while (cond2);
-    i = i + 1;
-  } while (cond1);
-  Expect.equals(100, result);
-}
-
-void main() {
-  do1();
-  do2();
-  do3();
-  do4();
-}
diff --git a/tests/web_2/dynamic_bounds_check_test.dart b/tests/web_2/dynamic_bounds_check_test.dart
deleted file mode 100644
index fb443f81d38..00000000000
--- a/tests/web_2/dynamic_bounds_check_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class Foo {}
-
-class Bar {}
-
-class Test {
-  void test<T extends Foo>() {}
-}
-
-void main() {
-  dynamic x = Test();
-  Expect.throws(() {
-    x.test<Bar>();
-  });
-}
diff --git a/tests/web_2/dynamic_invocation_test.dart b/tests/web_2/dynamic_invocation_test.dart
deleted file mode 100644
index a234108b5bb..00000000000
--- a/tests/web_2/dynamic_invocation_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class C1 {
-  int call(int a, int b) => a + b;
-}
-
-class C2 {
-  int call(int a, int b, int c) => a + b + c;
-}
-
-class D {
-  dynamic f1 = new C1();
-  dynamic f2 = new C2();
-}
-
-@pragma('dart2js:noInline')
-id(o) => o;
-
-main() {
-  dynamic d1 = id(new D());
-  Expect.equals(d1.f1(1, 2), 3); //# 01: ok
-  Expect.equals(d1.f2(1, 2, 3), 6); //# 02: ok
-  D d2 = id(new D());
-  Expect.equals(d2.f1(2, 3), 5); //# 03: ok
-  Expect.equals(d2.f2(2, 3, 4), 9); //# 04: ok
-}
diff --git a/tests/web_2/dynamic_type_literal_test.dart b/tests/web_2/dynamic_type_literal_test.dart
deleted file mode 100644
index e78d1133c42..00000000000
--- a/tests/web_2/dynamic_type_literal_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong --omit-implicit-checks
-
-// Test generation of 'dynamic' type literals.
-
-import "package:expect/expect.dart";
-
-void main() {
-  Expect.isTrue(dynamic is Type);
-  Expect.isFalse(dynamic == Type);
-}
diff --git a/tests/web_2/effectively_constant_fields_test.dart b/tests/web_2/effectively_constant_fields_test.dart
deleted file mode 100644
index 78a87bb8d4b..00000000000
--- a/tests/web_2/effectively_constant_fields_test.dart
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-_field4() => 4;
-
-class Class1 {
-  var field1 = 0;
-
-  @pragma('dart2js:noElision')
-  var field2 = 1;
-
-  var field3 = 2;
-
-  var field4 = _field4;
-}
-
-@pragma('dart2js:noInline')
-method1(Class1 c) {
-  return c.field1;
-}
-
-@pragma('dart2js:noInline')
-method2(Class1 c) {
-  return c.field2;
-}
-
-class Class2 {
-  var field3 = 3;
-}
-
-@pragma('dart2js:noInline')
-method3(c) {
-  return c.field3;
-}
-
-class Class3 extends Class1 {
-  @pragma('dart2js:noInline')
-  method4() {
-    return super.field1;
-  }
-}
-
-class Class4 extends Class1 {
-  @pragma('dart2js:noInline')
-  method5() {
-    return super.field4();
-  }
-}
-
-@pragma('dart2js:noInline')
-method6(Class1 c) {
-  return c.field1;
-}
-
-@pragma('dart2js:noInline')
-method7(Class1 c) {
-  return c.field4();
-}
-
-main() {
-  Expect.equals(0, method1(new Class1()));
-  Expect.equals(1, method2(new Class1()));
-  Expect.equals(2, method3(new Class1()));
-  Expect.equals(3, method3(new Class2()));
-  Expect.equals(0, new Class3().method4());
-  Expect.equals(4, new Class4().method5());
-  Expect.equals(0, method6(new Class1()));
-  Expect.throws(() => method6(null));
-  Expect.equals(4, method7(new Class1()));
-  Expect.throws(() => method7(null));
-}
diff --git a/tests/web_2/effectively_constant_instance_field_test.dart b/tests/web_2/effectively_constant_instance_field_test.dart
deleted file mode 100644
index fa1b315234e..00000000000
--- a/tests/web_2/effectively_constant_instance_field_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--omit-implicit-checks
-
-import 'package:expect/expect.dart';
-
-class C {
-  const C();
-}
-
-class A {
-  var field = const C();
-}
-
-class B {
-  var field;
-}
-
-@pragma('dart2js:noInline')
-test(o) => o.field;
-
-main() {
-  Expect.isNotNull(test(new A()));
-  Expect.isNull(test(new B()));
-}
diff --git a/tests/web_2/empty_method_test.dart b/tests/web_2/empty_method_test.dart
deleted file mode 100644
index 7bc26bbbd83..00000000000
--- a/tests/web_2/empty_method_test.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-void main() {}
diff --git a/tests/web_2/eof_line_ending_test.dart b/tests/web_2/eof_line_ending_test.dart
deleted file mode 100644
index 6ff3098f528..00000000000
--- a/tests/web_2/eof_line_ending_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test derived from language/issue_1578_test.dart with Windows
-// line encoding.
-
-main() {}
-
-]~<)$ //# 01: compile-time error
diff --git a/tests/web_2/equals_test.dart b/tests/web_2/equals_test.dart
deleted file mode 100644
index e19f6dff99e..00000000000
--- a/tests/web_2/equals_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-void main() {
-  var x = 3;
-  if (x == x) {
-    print('good');
-  } else {
-    throw "x != x with x == 3";
-  }
-  dynamic y = x;
-  if (true) {
-    y = 10;
-  }
-  if (x == y) throw "3 == 10";
-  if (y == true) throw "10 == true";
-  if (y == "str") throw "3 == 'str'";
-  if (true == 'str') throw "true == 'str'";
-  if (true) y = false;
-  if (y == false) {
-    print('good');
-  } else {
-    throw "false != false";
-  }
-}
diff --git a/tests/web_2/expose_this1_test.dart b/tests/web_2/expose_this1_test.dart
deleted file mode 100644
index 363820e9ec3..00000000000
--- a/tests/web_2/expose_this1_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for dart2js inference. Class.field6b should be known to be
-// potentially `null`.
-
-import 'package:expect/expect.dart';
-
-class Class6 {
-  var field6a;
-  var field6b;
-
-  Class6() : field6a = 42 {
-    field6b = field6a;
-  }
-}
-
-class SubClass6 extends Class6 {
-  var field6b;
-
-  SubClass6() : field6b = 42;
-
-  get access => super.field6b;
-}
-
-subclassField2() {
-  new Class6();
-  return new SubClass6().access;
-}
-
-main() {
-  Expect.isTrue(subclassField2() == null);
-}
diff --git a/tests/web_2/expose_this2_test.dart b/tests/web_2/expose_this2_test.dart
deleted file mode 100644
index cc1424da0ec..00000000000
--- a/tests/web_2/expose_this2_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for dart2js inference. Class9.field9b should be known to be
-// potentially `null`.
-
-import 'package:expect/expect.dart';
-
-class Class9 {
-  var field9a;
-  var field9b;
-
-  Class9() : field9a = 42 {
-    field9b = field9a;
-  }
-}
-
-class SubClass9a extends Class9 {
-  var field9b;
-
-  SubClass9a() : field9b = 42;
-
-  get access => super.field9b;
-}
-
-class SubClass9b extends Class9 {}
-
-subclassField5() {
-  new Class9();
-  new SubClass9b();
-  return new SubClass9a().access;
-}
-
-main() {
-  Expect.isTrue(subclassField5() == null);
-}
diff --git a/tests/web_2/field_access_test.dart b/tests/web_2/field_access_test.dart
deleted file mode 100644
index 18ec93a0a64..00000000000
--- a/tests/web_2/field_access_test.dart
+++ /dev/null
@@ -1,90 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test the all variants of field/property access/update are emitted.
-//
-// This is needed because getter/setters are now registered as read from and
-// written to, respectively, instead of being invoked.
-
-var field1a;
-
-var field1b;
-
-var field1c;
-
-@pragma('dart2js:noInline')
-get field2a => 42;
-
-@pragma('dart2js:noInline')
-set field2a(_) {}
-
-@pragma('dart2js:noInline')
-get field2b => 42;
-
-@pragma('dart2js:noInline')
-set field2b(_) {}
-
-@pragma('dart2js:noInline')
-get field2c => 42;
-
-@pragma('dart2js:noInline')
-set field2c(_) {}
-
-class Class {
-  @pragma('dart2js:noElision')
-  var field1a;
-
-  var field1b;
-
-  var field1c;
-
-  @pragma('dart2js:noInline')
-  get field2a => 42;
-
-  @pragma('dart2js:noInline')
-  set field2a(_) {}
-
-  @pragma('dart2js:noInline')
-  get field2b => 42;
-
-  @pragma('dart2js:noInline')
-  set field2b(_) {}
-
-  @pragma('dart2js:noInline')
-  get field2c => 42;
-
-  set field2c(_) {}
-
-  var field3a = 0;
-
-  var field3b;
-
-  @pragma('dart2js:noInline')
-  Class([this.field3b]);
-
-  @pragma('dart2js:noInline')
-  test() {
-    field1a;
-    field1b = 42;
-    field1c = field1c;
-
-    field2a;
-    field2b = 42;
-    field2c = field2c;
-  }
-}
-
-main() {
-  field1a;
-  field1b = 42;
-  field1c = field1c;
-
-  field2a;
-  field2b = 42;
-  field2c = field2c;
-
-  new Class().test();
-}
diff --git a/tests/web_2/field_in_constructor_test.dart b/tests/web_2/field_in_constructor_test.dart
deleted file mode 100644
index 895a80e4ec8..00000000000
--- a/tests/web_2/field_in_constructor_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {
-  var a;
-  A() {
-    a = 2;
-  }
-}
-
-main() {
-  Expect.equals(2, new A().a);
-}
diff --git a/tests/web_2/field_initializer_test.dart b/tests/web_2/field_initializer_test.dart
deleted file mode 100644
index 31efa81ea0d..00000000000
--- a/tests/web_2/field_initializer_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {
-  static var a;
-  static var b = c;
-  static const c = 499;
-  static const d = c;
-  static const e = d;
-  static const f = B.g;
-  static const h = true;
-  static const i = false;
-  static const j = n;
-  static const k = 4.99;
-  static const l = null;
-  static const m = l;
-  static const n = 42;
-}
-
-class B {
-  static const g = A.c;
-}
-
-testInitialValues() {
-  Expect.equals(null, A.a);
-  Expect.equals(499, A.b);
-  Expect.equals(499, A.c);
-  Expect.equals(499, A.d);
-  Expect.equals(499, A.e);
-  Expect.equals(499, A.f);
-  Expect.equals(499, B.g);
-  Expect.equals(true, A.h);
-  Expect.equals(false, A.i);
-  Expect.equals(42, A.j);
-  Expect.equals(4.99, A.k);
-  Expect.equals(null, A.l);
-  Expect.equals(null, A.m);
-  Expect.equals(42, A.n);
-}
-
-testMutation() {
-  A.a = 499;
-  Expect.equals(499, A.a);
-  A.b = 42;
-  Expect.equals(42, A.b);
-  Expect.equals(499, A.c);
-  Expect.equals(499, A.a);
-}
-
-main() {
-  testInitialValues();
-  testMutation();
-}
diff --git a/tests/web_2/fields_test.dart b/tests/web_2/fields_test.dart
deleted file mode 100644
index bb773d77c12..00000000000
--- a/tests/web_2/fields_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {
-  A() {}
-  int x;
-
-  foo() {
-    x = 42;
-    Expect.equals(42, x);
-    x = 0;
-    Expect.equals(0, x);
-  }
-}
-
-class B extends A {}
-
-main() {
-  A a = new A();
-  a.foo();
-  Expect.equals(0, a.x);
-  a.x = 4;
-  Expect.equals(4, a.x);
-  a.x += 1;
-  Expect.equals(5, a.x);
-
-  B b = new B();
-  b.foo();
-  Expect.equals(0, b.x);
-}
diff --git a/tests/web_2/first_class_types_hashcode_test.dart b/tests/web_2/first_class_types_hashcode_test.dart
deleted file mode 100644
index 92637ae461e..00000000000
--- a/tests/web_2/first_class_types_hashcode_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-// Check that Type instances work with maps. This behavior is not required by
-// the specification.
-
-class A {}
-
-class B<T> {}
-
-main() {
-  Map<Type, String> map = new Map<Type, String>();
-  Type a = new A().runtimeType;
-  Type b1 = new B<int>().runtimeType;
-  Type b2 = new B<String>().runtimeType;
-  map[a] = 'A';
-  map[b1] = 'B<int>';
-  map[b2] = 'B<String>';
-  Expect.equals('A', map[new A().runtimeType]);
-  Expect.equals('B<int>', map[new B<int>().runtimeType]);
-  Expect.equals('B<String>', map[new B<String>().runtimeType]);
-}
diff --git a/tests/web_2/fixed_type_argument_implements_test.dart b/tests/web_2/fixed_type_argument_implements_test.dart
deleted file mode 100644
index cd3b1804e93..00000000000
--- a/tests/web_2/fixed_type_argument_implements_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that we emit the relation between B and A even when B is only live
-// as a type argument through the supertype of D.
-
-class A {}
-
-class B implements A {}
-
-class C<T> {}
-
-class D implements C<B> {}
-
-main() {
-  C<A> c = new D();
-  test(c);
-}
-
-@pragma('dart2js:noInline')
-void test(C<A> c) {}
diff --git a/tests/web_2/fixed_type_argument_test.dart b/tests/web_2/fixed_type_argument_test.dart
deleted file mode 100644
index 384c76b80eb..00000000000
--- a/tests/web_2/fixed_type_argument_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that we emit the relation between B and A even when B is only live
-// as a type argument through the superclass of D.
-
-class A {}
-
-class B implements A {}
-
-class C<T> {
-  @pragma('dart2js:noInline')
-  method(void Function(T) f) {}
-}
-
-class D extends C<B> {}
-
-main() {
-  C<A> c = new D();
-  c.method((A a) {});
-}
diff --git a/tests/web_2/foo7_test.dart b/tests/web_2/foo7_test.dart
deleted file mode 100644
index 97dcbfdef18..00000000000
--- a/tests/web_2/foo7_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-void main() {
-  print(foo());
-}
-
-int foo() {
-  return 3 + 4;
-}
diff --git a/tests/web_2/for_in_test.dart b/tests/web_2/for_in_test.dart
deleted file mode 100644
index 023d5aecfc3..00000000000
--- a/tests/web_2/for_in_test.dart
+++ /dev/null
@@ -1,95 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "dart:collection";
-import "package:expect/expect.dart";
-
-// Test foreach (aka. for-in) functionality.
-
-testIterator(List expect, Iterable input) {
-  int i = 0;
-  for (var value in input) {
-    Expect.isTrue(i < expect.length);
-    Expect.equals(expect[i], value);
-    i += 1;
-  }
-  Expect.equals(expect.length, i);
-
-  i = 0;
-  var value2;
-  for (value2 in input) {
-    Expect.isTrue(i < expect.length);
-    Expect.equals(expect[i], value2);
-    i += 1;
-  }
-  Expect.equals(expect.length, i);
-}
-
-class MyIterable<T> extends IterableBase<T> {
-  final List<T> values;
-  MyIterable(List<T> values) : this.values = values;
-  Iterator<T> get iterator {
-    return new MyListIterator<T>(values);
-  }
-}
-
-class MyListIterator<T> implements Iterator<T> {
-  final List<T> values;
-  int index;
-  MyListIterator(List<T> values)
-      : this.values = values,
-        index = -1;
-
-  bool moveNext() => ++index < values.length;
-  T get current => (0 <= index && index < values.length) ? values[index] : null;
-}
-
-void main() {
-  testIterator([], []);
-  testIterator([], new MyIterable([]));
-  testIterator([1], [1]);
-  testIterator([1], new MyIterable([1]));
-  testIterator([1, 2, 3], [1, 2, 3]);
-  testIterator([1, 2, 3], new MyIterable([1, 2, 3]));
-  testIterator(["a", "b", "c"], ["a", "b", "c"]);
-  testIterator(["a", "b", "c"], new MyIterable(["a", "b", "c"]));
-
-  // Several nested for-in's.
-  for (var x in [
-    [
-      ["a"]
-    ]
-  ]) {
-    for (var y in x) {
-      for (var z in y) {
-        Expect.equals("a", z);
-      }
-    }
-  }
-
-  // Simultaneous iteration of the same iterable.
-  for (var iterable in [
-    [1, 2, 3],
-    new MyIterable([1, 2, 3])
-  ]) {
-    int result = 0;
-    for (var x in iterable) {
-      for (var y in iterable) {
-        result += x * y;
-      }
-    }
-    Expect.equals(36, result);
-  }
-
-  // Using the same variable (showing that the expression is evaluated
-  // in the outer scope).
-  int result = 0;
-  var x = [1, 2, 3];
-  for (var x in x) {
-    result += x;
-  }
-  Expect.equals(6, result);
-}
diff --git a/tests/web_2/for_test.dart b/tests/web_2/for_test.dart
deleted file mode 100644
index a585bfb9264..00000000000
--- a/tests/web_2/for_test.dart
+++ /dev/null
@@ -1,91 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-void for1() {
-  var cond = true;
-  var result = 0;
-  for (var x = 0; cond; x = x + 1) {
-    if (x == 10) cond = false;
-    result = result + x;
-  }
-  Expect.equals(55, result);
-}
-
-void for2() {
-  var t = 0;
-  for (var i = 0; i == 0; i = i + 1) {
-    t = t + 10;
-  }
-  Expect.equals(10, t);
-}
-
-void for3() {
-  for (var i = 0; i == 1; i = i + 1) {
-    Expect.fail('unreachable');
-  }
-}
-
-void for4() {
-  var cond1 = true;
-  var result = 0;
-  for (var i = 0; cond1; i = i + 1) {
-    if (i == 9) cond1 = false;
-    var cond2 = true;
-    for (var j = 0; cond2; j = j + 1) {
-      if (j == 9) cond2 = false;
-      result = result + 1;
-    }
-  }
-  Expect.equals(100, result);
-}
-
-void for5() {
-  var i;
-  var sum = 0;
-  for (i = 0; i < 5; i++) {
-    sum += i;
-  }
-  Expect.equals(5, i);
-  Expect.equals(10, sum);
-}
-
-void for6() {
-  var i = 0;
-  var sum = 0;
-  for (; i < 5; i++) {
-    sum += i;
-  }
-  Expect.equals(5, i);
-  Expect.equals(10, sum);
-
-  sum = 0;
-  i = 0;
-  for (; i < 5;) {
-    sum += i;
-    i++;
-  }
-  Expect.equals(5, i);
-  Expect.equals(10, sum);
-
-  sum = 0;
-  for (i = 0; i < 5;) {
-    sum += i;
-    i++;
-  }
-  Expect.equals(5, i);
-  Expect.equals(10, sum);
-}
-
-void main() {
-  for1();
-  for2();
-  for3();
-  for4();
-  for5();
-  for6();
-}
diff --git a/tests/web_2/function_parameters_test.dart b/tests/web_2/function_parameters_test.dart
deleted file mode 100644
index 377fc66aa7c..00000000000
--- a/tests/web_2/function_parameters_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-void main() {
-  print(foo(3) + foo(4));
-}
-
-int foo(int a) {
-  return a;
-}
diff --git a/tests/web_2/function_typed_arguments_test.dart b/tests/web_2/function_typed_arguments_test.dart
deleted file mode 100644
index a441003f143..00000000000
--- a/tests/web_2/function_typed_arguments_test.dart
+++ /dev/null
@@ -1,106 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--omit-implicit-checks
-
-// Test type tests of function types used a type argument.
-
-import 'package:expect/expect.dart';
-
-class A<T> {}
-
-main() {
-  test1();
-  test2();
-  test3();
-  test4();
-  test5();
-  test6();
-}
-
-class B1<T> {}
-
-class C1 extends B1<int> {}
-
-@pragma('dart2js:noInline')
-test1() {
-  Expect.isTrue(_test1(new A<void Function(C1)>()));
-  Expect.isTrue(_test1(new A<void Function(B1<int>)>())); //# 01: ok
-  Expect.isFalse(_test1(new A<void Function(B1<String>)>()));
-}
-
-@pragma('dart2js:noInline')
-_test1(f) => f is A<void Function(C1)>;
-
-class B2<T> {}
-
-class C2 extends B2<int> {}
-
-@pragma('dart2js:noInline')
-test2() {
-  Expect.isTrue(_test2(new A<C2 Function()>()));
-  Expect.isFalse(_test2(new A<B2<int> Function()>()));
-  Expect.isFalse(_test2(new A<B2<String> Function()>()));
-}
-
-@pragma('dart2js:noInline')
-_test2(f) => f is A<C2 Function()>;
-
-class B3<T> {}
-
-class C3 extends B3<int> {}
-
-@pragma('dart2js:noInline')
-test3() {
-  Expect.isFalse(_test3(new A<void Function(C3)>()));
-  Expect.isTrue(_test3(new A<void Function(B3<int>)>()));
-  Expect.isFalse(_test3(new A<void Function(B3<String>)>()));
-}
-
-@pragma('dart2js:noInline')
-_test3(f) => f is A<void Function(B3<int>)>;
-
-class B4<T> {}
-
-class C4 extends B4<int> {}
-
-@pragma('dart4js:noInline')
-test4() {
-  Expect.isTrue(_test4(new A<C4 Function()>()));
-  Expect.isTrue(_test4(new A<B4<int> Function()>()));
-  Expect.isFalse(_test4(new A<B4<String> Function()>()));
-}
-
-@pragma('dart4js:noInline')
-_test4(f) => f is A<B4<int> Function()>;
-
-class B5<T> {}
-
-class C5 extends B5<int> {}
-
-@pragma('dart2js:noInline')
-test5() {
-  Expect.isTrue(_test5(new A<void Function(C5 Function())>()));
-  Expect.isTrue(_test5(new A<void Function(B5<int> Function())>())); //# 02: ok
-  Expect.isFalse(_test5(new A<void Function(B5<String> Function())>()));
-}
-
-@pragma('dart2js:noInline')
-_test5(f) => f is A<void Function(C5 Function())>;
-
-class B6<T> {}
-
-class C6 extends B6<int> {}
-
-@pragma('dart2js:noInline')
-test6() {
-  Expect.isTrue(_test6(new A<void Function(void Function(C6))>()));
-  Expect.isFalse(_test6(new A<void Function(void Function(B6<int>))>()));
-  Expect.isFalse(_test6(new A<void Function(void Function(B6<String>))>()));
-}
-
-@pragma('dart2js:noInline')
-_test6(f) => f is A<void Function(void Function(C6))>;
diff --git a/tests/web_2/generator_elided_parameter_test.dart b/tests/web_2/generator_elided_parameter_test.dart
deleted file mode 100644
index 169940d9456..00000000000
--- a/tests/web_2/generator_elided_parameter_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-/// Test that optional arguments of methods with a generator are forwarded
-/// properly when optional parameters are elided.
-///
-/// This is a regression test for issue #35924
-import "package:expect/expect.dart";
-
-// The type parameter forces us to create a generator body. The call from the
-// method to the body needs to correctly handle elided parameters.
-Future<T> foo<T>(T Function(int, int, int) toT,
-    {int p1: 0, int p2: 1, int p3: 2}) async {
-  await null;
-  return toT(p1, p2, p3);
-}
-
-main() async {
-  Expect.equals(await foo<String>((a, b, c) => "$a $b $c", p2: 4), "0 4 2");
-}
diff --git a/tests/web_2/generic_bounds_test.dart b/tests/web_2/generic_bounds_test.dart
deleted file mode 100644
index b23d8dfafb5..00000000000
--- a/tests/web_2/generic_bounds_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-class A {}
-
-class B extends A {}
-
-class C {}
-
-class D<T> {}
-
-class E<T> extends D<T> {}
-
-class F<T> {}
-
-void f1<T extends A>() {
-  print('f1<$T>');
-}
-
-void f2<S, T extends D<S>>() {
-  print('f2<$S,$T>');
-}
-
-main() {
-  dynamic f = f1;
-  f<A>();
-  f<B>();
-  Expect.throws(() => f<C>(), (e) {
-    print(e);
-    return true;
-  });
-  f();
-  f = f2;
-  f<A, D<A>>();
-  f<A, E<A>>();
-  Expect.throws(() => f<A, F<A>>(), (e) {
-    print(e);
-    return true;
-  });
-  f();
-}
diff --git a/tests/web_2/generic_class_is_test.dart b/tests/web_2/generic_class_is_test.dart
deleted file mode 100644
index ac0978049b2..00000000000
--- a/tests/web_2/generic_class_is_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class A<T> {}
-
-class A1 implements A<C1> {}
-
-class B<T> {
-  @pragma('dart2js:noInline')
-  method(var t) => t is T;
-}
-
-class C {}
-
-class C1 implements C {}
-
-class C2 implements C {}
-
-main() {
-  Expect.isTrue(new B<List<A<C>>>().method(<A1>[]));
-  Expect.isFalse(new B<List<A<C2>>>().method(<A1>[]));
-}
diff --git a/tests/web_2/generic_in_mixin_field_test.dart b/tests/web_2/generic_in_mixin_field_test.dart
deleted file mode 100644
index 045d314935a..00000000000
--- a/tests/web_2/generic_in_mixin_field_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Ensure that we prepare type variables for inlined mixin fields.
-
-import 'package:expect/expect.dart';
-
-class A<T> {}
-
-class Mixin<T> {
-  var field = new A<T>();
-
-  m1() => field is A<int>;
-  m2() => field is A<String>;
-}
-
-class SuperClass<T> extends Object with Mixin<T> {}
-
-class Class extends SuperClass<int> {}
-
-@pragma('dart2js:noInline')
-createClass() => new Class();
-
-main() {
-  var c = createClass();
-  Expect.isTrue(c.m1());
-  Expect.isFalse(c.m2());
-}
diff --git a/tests/web_2/generic_in_redirect_test.dart b/tests/web_2/generic_in_redirect_test.dart
deleted file mode 100644
index fd289bf04f8..00000000000
--- a/tests/web_2/generic_in_redirect_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Ensure that we prepare type variables for inlined redirecting constructor
-// calls.
-
-import 'package:expect/expect.dart';
-
-class A<T> {}
-
-class SuperClass<T> {
-  var field;
-
-  SuperClass() : this._(new A<T>());
-
-  SuperClass._(this.field);
-
-  m1() => field is A<int>;
-  m2() => field is A<String>;
-}
-
-class Class extends SuperClass<int> {}
-
-@pragma('dart2js:noInline')
-createClass() => new Class();
-
-main() {
-  var c = createClass();
-  Expect.isTrue(c.m1());
-  Expect.isFalse(c.m2());
-}
diff --git a/tests/web_2/generic_in_super_test.dart b/tests/web_2/generic_in_super_test.dart
deleted file mode 100644
index 77f685654e0..00000000000
--- a/tests/web_2/generic_in_super_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Ensure that we prepare type variables for inlined super constructor calls.
-
-import 'package:expect/expect.dart';
-
-class A<T> {}
-
-class SuperSuperClass<T> {
-  var field;
-
-  SuperSuperClass(this.field);
-
-  m1() => field is A<int>;
-  m2() => field is A<String>;
-}
-
-class SuperClass<T> extends SuperSuperClass<T> {
-  SuperClass() : super(new A<T>());
-}
-
-class Class extends SuperClass<int> {}
-
-@pragma('dart2js:noInline')
-createClass() => new Class();
-
-main() {
-  var c = createClass();
-  Expect.isTrue(c.m1());
-  Expect.isFalse(c.m2());
-}
diff --git a/tests/web_2/generic_instantiation1_test.dart b/tests/web_2/generic_instantiation1_test.dart
deleted file mode 100644
index c790136a899..00000000000
--- a/tests/web_2/generic_instantiation1_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-int f<T>(T a) => null;
-
-typedef int F<R>(R a);
-
-class B<S> {
-  F<S> c;
-
-  B() : c = f;
-}
-
-main() {
-  new B<int>().c(0);
-}
diff --git a/tests/web_2/generic_instantiation2_test.dart b/tests/web_2/generic_instantiation2_test.dart
deleted file mode 100644
index 886b69a49e3..00000000000
--- a/tests/web_2/generic_instantiation2_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong --omit-implicit-checks
-
-int f<T>(T a) => null;
-
-typedef int F<R>(R a);
-
-class B<S> {
-  F<S> c;
-
-  B() : c = f;
-}
-
-main() {
-  new B<int>().c(0);
-}
diff --git a/tests/web_2/generic_instantiation3_test.dart b/tests/web_2/generic_instantiation3_test.dart
deleted file mode 100644
index 8ab46fd8a44..00000000000
--- a/tests/web_2/generic_instantiation3_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-bool f<T, S>(T a, S b) => a is S;
-
-typedef bool F<P, Q>(P a, Q b);
-
-class B<X, Y> {
-  F<X, Y> c;
-
-  B() : c = f;
-}
-
-main() {
-  Expect.isTrue(new B<int, int>().c(0, 0));
-  Expect.isFalse(new B<int, String>().c(0, ''));
-}
diff --git a/tests/web_2/generic_instantiation4_test.dart b/tests/web_2/generic_instantiation4_test.dart
deleted file mode 100644
index 3091874e0b4..00000000000
--- a/tests/web_2/generic_instantiation4_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong --omit-implicit-checks
-
-import 'package:expect/expect.dart';
-
-bool f<T, S>(T a, S b) => a is S;
-
-typedef bool F<P, Q>(P a, Q b);
-
-class B<X, Y> {
-  F<X, Y> c;
-
-  B() : c = f;
-}
-
-main() {
-  Expect.isTrue(new B<int, int>().c(0, 0));
-  Expect.isFalse(new B<int, String>().c(0, ''));
-}
diff --git a/tests/web_2/generic_method_dynamic_is_test.dart b/tests/web_2/generic_method_dynamic_is_test.dart
deleted file mode 100644
index 474114a5947..00000000000
--- a/tests/web_2/generic_method_dynamic_is_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class A {}
-
-class B implements A {}
-
-class C<T> {}
-
-class D {}
-
-class E {
-  @pragma('dart2js:noInline')
-  m<T>() => new C<T>();
-}
-
-class F {
-  @pragma('dart2js:noInline')
-  m<T>() => false;
-}
-
-@pragma('dart2js:noInline')
-test(o) => o is C<A>;
-
-main() {
-  dynamic o =
-      new DateTime.now().millisecondsSinceEpoch == 0 ? new F() : new E();
-  Expect.isTrue(test(o.m<B>()));
-  Expect.isFalse(test(o.m<D>()));
-}
diff --git a/tests/web_2/generic_method_dynamic_type_test.dart b/tests/web_2/generic_method_dynamic_type_test.dart
deleted file mode 100644
index 69122464c87..00000000000
--- a/tests/web_2/generic_method_dynamic_type_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class C<CT> {
-  foo<FT extends CT>() => CT;
-
-  BT bar<BT extends CT>(BT x) => x;
-  CT map<MT extends CT>(MT x) => x;
-}
-
-main() {
-  dynamic o = new C<num>();
-
-  Expect.equals('<T1 extends num>() => dynamic', o.foo.runtimeType.toString());
-
-  // Instantiations
-  int Function(int) f1 = new C<num>().bar;
-  num Function(int) f2 = new C<num>().map;
-
-  Expect.equals('(int) => int', f1.runtimeType.toString());
-  Expect.equals('(int) => num', f2.runtimeType.toString());
-}
diff --git a/tests/web_2/generic_method_static_is_test.dart b/tests/web_2/generic_method_static_is_test.dart
deleted file mode 100644
index dfa621102a5..00000000000
--- a/tests/web_2/generic_method_static_is_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class A {}
-
-class B implements A {}
-
-class C<T> {}
-
-class D {}
-
-@pragma('dart2js:noInline')
-m<T>() => new C<T>();
-
-@pragma('dart2js:noInline')
-test(o) => o is C<A>;
-
-main() {
-  Expect.isTrue(test(m<B>()));
-  Expect.isFalse(test(m<D>()));
-}
diff --git a/tests/web_2/generic_type_error_message_test.dart b/tests/web_2/generic_type_error_message_test.dart
deleted file mode 100644
index c09fbf0cbec..00000000000
--- a/tests/web_2/generic_type_error_message_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-class Foo<T extends num> {}
-
-class Bar<T extends num> {}
-
-class Baz<T extends num> {}
-
-@pragma('dart2js:disableFinal')
-main() {
-  test(new Foo(), Foo, expectTypeArguments: false);
-  test(new Bar() as Bar<num>, Bar, expectTypeArguments: false);
-  Baz<num> b = new Baz();
-  dynamic c = b;
-  test(c as Baz<num>, Baz, expectTypeArguments: true);
-}
-
-void test(dynamic object, Type type, {bool expectTypeArguments}) {
-  bool caught = false;
-  try {
-    print(type);
-    object as List<String>;
-  } catch (e) {
-    String expected = '$type';
-    if (!expectTypeArguments) {
-      expected = expected.substring(0, expected.indexOf('<'));
-    }
-    expected = '$expected';
-    Expect.isTrue(e.toString().contains(expected),
-        'Expected "$expected" in the message: $e');
-    caught = true;
-    print(e);
-  }
-  Expect.isTrue(caught);
-}
diff --git a/tests/web_2/generics_factories_test.dart b/tests/web_2/generics_factories_test.dart
deleted file mode 100644
index e36626ef109..00000000000
--- a/tests/web_2/generics_factories_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that factories are marked as needing rti.
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  foo(o) => o is T;
-  factory A.c() => new B<T>();
-  A();
-}
-
-class B<T> extends A<T> {}
-
-class C {}
-
-class D {}
-
-main() {
-  Expect.isTrue(new A<C>.c().foo(new C()));
-  Expect.isFalse(new A<C>.c().foo(new D()));
-}
diff --git a/tests/web_2/generics_is_check1_test.dart b/tests/web_2/generics_is_check1_test.dart
deleted file mode 100644
index 6921c3fa73a..00000000000
--- a/tests/web_2/generics_is_check1_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class Hest<X> {}
-
-main() {
-  var x = new Hest<int>();
-  Expect.isTrue(x is Hest<int>);
-  Expect.isFalse(x is Hest<String>);
-}
diff --git a/tests/web_2/getter_element_test.dart b/tests/web_2/getter_element_test.dart
deleted file mode 100644
index 92939c02f87..00000000000
--- a/tests/web_2/getter_element_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {
-  static main() {
-    testOther();
-    new A().testSelf();
-  }
-
-  static testOther() {
-    var o = new A();
-    o.instf = 0;
-    o.instf += 1;
-    Expect.equals(1, o.instf);
-  }
-
-  testSelf() {
-    instf = 0;
-    instf += 1;
-    Expect.equals(1, instf);
-  }
-
-  var instf;
-}
-
-main() {
-  A.main();
-}
diff --git a/tests/web_2/getters_setters_test.dart b/tests/web_2/getters_setters_test.dart
deleted file mode 100644
index 7a437601409..00000000000
--- a/tests/web_2/getters_setters_test.dart
+++ /dev/null
@@ -1,130 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class GettersSettersTest {
-  static int foo;
-
-  static get bar {
-    return foo;
-  }
-
-  static set bar(newValue) {
-    foo = newValue;
-  }
-
-  static testMain() {
-    A a = new A();
-    a.x = 2;
-    Expect.equals(2, a.x);
-    Expect.equals(2, a.x_);
-
-    // Test inheritance.
-    a = new B();
-    a.x = 4;
-    Expect.equals(4, a.x);
-    Expect.equals(4, a.x_);
-
-    // Test overriding.
-    C c = new C();
-    c.x = 8;
-    Expect.equals(8, c.x);
-    Expect.equals(0, c.x_);
-    Expect.equals(8, c.y_);
-
-    // Test keyed getters and setters.
-    a.x_ = 0;
-    Expect.equals(2, a[2]);
-    a[2] = 4;
-    Expect.equals(6, a[0]);
-
-    // Test assignment operators.
-    a.x_ = 0;
-    a[2] += 8;
-    Expect.equals(12, a[0]);
-
-    // Test calling a function that internally uses getters.
-    Expect.equals(true, a.isXPositive());
-
-    // Test static fields.
-    foo = 42;
-    Expect.equals(42, foo);
-    Expect.equals(42, bar);
-    A.foo = 43;
-    Expect.equals(43, A.foo);
-    Expect.equals(43, A.bar);
-
-    bar = 42;
-    Expect.equals(42, foo);
-    Expect.equals(42, bar);
-    A.bar = 43;
-    Expect.equals(43, A.foo);
-    Expect.equals(43, A.bar);
-  }
-}
-
-class A {
-  A();
-  int x_;
-  static int foo;
-
-  static get bar {
-    return foo;
-  }
-
-  static set bar(newValue) {
-    foo = newValue;
-  }
-
-  int get x {
-    return x_;
-  }
-
-  void set x(int value) {
-    x_ = value;
-  }
-
-  bool isXPositive() {
-    return x > 0;
-  }
-
-  int operator [](int index) {
-    return x_ + index;
-  }
-
-  void operator []=(int index, int value) {
-    x_ = index + value;
-  }
-
-  int getX_() {
-    return x_;
-  }
-}
-
-class B extends A {
-  B();
-}
-
-class C extends A {
-  int y_;
-
-  C() {
-    this.x_ = 0;
-  }
-
-  int get x {
-    return y_;
-  }
-
-  void set x(int value) {
-    y_ = value;
-  }
-}
-
-main() {
-  GettersSettersTest.testMain();
-}
diff --git a/tests/web_2/hash_code_test.dart b/tests/web_2/hash_code_test.dart
deleted file mode 100644
index 219fe348af8..00000000000
--- a/tests/web_2/hash_code_test.dart
+++ /dev/null
@@ -1,90 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-// dart2js specific test to make sure hashCode on intercepted types behaves as
-// intended.
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-class Hasher {
-  hash(x) => confuse(x).hashCode;
-}
-
-// Hashing via [hash] should be forced to use the general interceptor, but the
-// local x.hashCode calls might be optimized.
-var hash = new Hasher().hash;
-
-check(value1, value2, {identityHashCode}) {
-  var h1 = hash(value1);
-  var h2 = hash(value2);
-  Expect.isTrue(h1 is int);
-  Expect.isTrue(h2 is int);
-
-  // Quality check - the values should be SMIs for efficient arithmetic.
-  Expect.equals((h1 & 0x3fffffff), h1);
-  Expect.equals((h2 & 0x3fffffff), h2);
-
-  // If we're checking the (randomized) identity hash code function,
-  // we cannot guarantee anything about the actual hash code values.
-  if (identityHashCode) return;
-
-  // We expect that the hash function is reasonable quality - there
-  // are some difference in the low bits.
-  Expect.isFalse(h1 == h2);
-  Expect.isFalse((h1 & 0xf) == (h2 & 0xf));
-}
-
-bools() {
-  check(true, false, identityHashCode: false);
-
-  Expect.equals(true.hashCode, hash(true)); // First can be optimized.
-  Expect.equals(false.hashCode, hash(false));
-}
-
-ints() {
-  var i1 = 100;
-  var i2 = 101;
-  check(i1, i2, identityHashCode: false);
-  Expect.equals(i1.hashCode, hash(i1));
-  Expect.equals(i2.hashCode, hash(i2));
-}
-
-lists() {
-  var list1 = [];
-  var list2 = [];
-  check(list1, list2, identityHashCode: true);
-
-  Expect.equals(list1.hashCode, hash(list1));
-  Expect.equals(list2.hashCode, hash(list2));
-}
-
-strings() {
-  var str1 = 'a';
-  var str2 = 'b';
-  var str3 = 'c';
-  check(str1, str2, identityHashCode: false);
-  check(str1, str3, identityHashCode: false);
-  check(str2, str3, identityHashCode: false);
-
-  Expect.equals(str1.hashCode, hash(str1));
-  Expect.equals(str2.hashCode, hash(str2));
-  Expect.equals(str3.hashCode, hash(str3));
-
-  Expect.equals(0xA2E9442, 'a'.hashCode);
-  Expect.equals(0x0DB819B, 'b'.hashCode);
-  Expect.equals(0xEBA5D59, 'c'.hashCode);
-}
-
-main() {
-  bools();
-  ints();
-  lists();
-  strings();
-}
diff --git a/tests/web_2/identical_trace_test.dart b/tests/web_2/identical_trace_test.dart
deleted file mode 100644
index 6b24f02fc19..00000000000
--- a/tests/web_2/identical_trace_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-main() {
-  var st1;
-  try {
-    try {
-      throw 'bad';
-    } catch (e, st) {
-      st1 = st;
-      rethrow;
-    }
-    Expect.fail('Exception expected');
-  } catch (e, st2) {
-    Expect.equals(st1, st2);
-    Expect.identical(st1, st2);
-    return;
-  }
-  Expect.fail('Exception expected');
-}
diff --git a/tests/web_2/if_in_loop_test.dart b/tests/web_2/if_in_loop_test.dart
deleted file mode 100644
index 98603bd5540..00000000000
--- a/tests/web_2/if_in_loop_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-// Test for bug in code generation of if-with-aborting-branch-inside-loop.
-
-foo(p, q) {
-  var w = 10;
-  do {
-    if (p) {
-      w = 20;
-    } else {
-      w = 30;
-      return w;
-    }
-  } while (q);
-  return w;
-}
-
-main() {
-  Expect.equals(30, foo(false, true));
-  Expect.equals(30, foo(false, false));
-  Expect.equals(20, foo(true, false));
-}
diff --git a/tests/web_2/if_method_call_test.dart b/tests/web_2/if_method_call_test.dart
deleted file mode 100644
index 62f20ed6349..00000000000
--- a/tests/web_2/if_method_call_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for bug in dart2js type promotion.
-
-import 'package:expect/expect.dart';
-
-staticMethod(a) => true;
-
-class Super {
-  superMethod(a) => true;
-}
-
-class Class extends Super {
-  instanceMethod(a) => true;
-
-  test1(c) {
-    if (super.superMethod(c is Class2)) {
-      return c.method();
-    }
-    return 0;
-  }
-
-  test2(c) {
-    if (this.instanceMethod(c is Class2)) {
-      return c.method();
-    }
-    return 0;
-  }
-}
-
-class Class1 {
-  method() => 87;
-}
-
-class Class2 {
-  method() => 42;
-}
-
-test(c) {
-  if (staticMethod(c is Class2)) {
-    return c.method();
-  }
-  return 0;
-}
-
-main() {
-  Expect.equals(87, test(new Class1())); //# 01: ok
-  Expect.equals(42, test(new Class2()));
-
-  Expect.equals(87, new Class().test1(new Class1())); //# 02: ok
-  Expect.equals(42, new Class().test1(new Class2()));
-
-  Expect.equals(87, new Class().test2(new Class1())); //# 03: ok
-  Expect.equals(42, new Class().test2(new Class2()));
-}
diff --git a/tests/web_2/if_null2_test.dart b/tests/web_2/if_null2_test.dart
deleted file mode 100644
index c4234578940..00000000000
--- a/tests/web_2/if_null2_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-/// Regression for #24134: inference was not tracking ??= correctly.
-library web_2.if_null2_test;
-
-import "package:expect/expect.dart";
-
-main() {
-  var map;
-  map ??= {};
-  Expect.equals(0, map.length);
-  Expect.isTrue(map.length == 0);
-}
diff --git a/tests/web_2/if_null3_test.dart b/tests/web_2/if_null3_test.dart
deleted file mode 100644
index 0344b9f376e..00000000000
--- a/tests/web_2/if_null3_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-/// Regression for #24135: inference was not tracking `[]??=` correctly.
-library web_2.if_null3_test;
-
-import "package:expect/expect.dart";
-
-void main() {
-  var map;
-  (((map ??= {})['key1'] ??= {})['key2'] ??= {})['key3'] = 'value';
-  Expect.equals('{key1: {key2: {key3: value}}}', '$map');
-}
diff --git a/tests/web_2/if_null_test.dart b/tests/web_2/if_null_test.dart
deleted file mode 100644
index b7f28a98b14..00000000000
--- a/tests/web_2/if_null_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-main(args) {
-  dynamic x = new A();
-  var y;
-
-  // Checks that inference doesn't incorrectly treat this as a normal
-  // assignment (where only B is a possible value after the assignment).
-  dynamic c = x ??= new B();
-  var z = x;
-  Expect.equals('a', x.m());
-  Expect.equals('a', z.m());
-  Expect.equals('a', c.m());
-  if (confuse(true)) y = x;
-  Expect.equals('a', y.m());
-
-  // Similar test, within fields.
-  new C();
-  new D();
-}
-
-class A {
-  m() => 'a';
-}
-
-class B {
-  m() => 'b';
-}
-
-class C {
-  var y;
-  C() {
-    y = new A();
-    var c = y ??= new B();
-    Expect.equals('a', y.m());
-    Expect.equals('a', c.m());
-  }
-}
-
-class D {
-  var y;
-  D() {
-    this.y = new A();
-    var c = this.y ??= new B();
-    Expect.equals('a', y.m());
-    Expect.equals('a', c.m());
-  }
-}
diff --git a/tests/web_2/if_test.dart b/tests/web_2/if_test.dart
deleted file mode 100644
index cead13cd498..00000000000
--- a/tests/web_2/if_test.dart
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-int if1() {
-  if (true) {
-    return 499;
-  }
-  return 3;
-}
-
-int if2() {
-  if (true) {
-    return 499;
-  }
-}
-
-int if3() {
-  if (false) {
-    return 42;
-  } else {
-    if (true) {
-      return 499;
-    }
-    Expect.fail('unreachable');
-  }
-}
-
-int if4() {
-  if (true) {
-    return 499;
-  } else {
-    return 42;
-  }
-}
-
-int if5() {
-  if (true) {
-    if (false) return 42;
-  } else {}
-  return 499;
-}
-
-int if6() {
-  if (true) {
-    if (false) return 42;
-  }
-  return 499;
-}
-
-void main() {
-  Expect.equals(499, if1());
-  Expect.equals(499, if2());
-  Expect.equals(499, if3());
-  Expect.equals(499, if4());
-  Expect.equals(499, if5());
-  Expect.equals(499, if6());
-}
diff --git a/tests/web_2/index_test.dart b/tests/web_2/index_test.dart
deleted file mode 100644
index 5e7af77d8a2..00000000000
--- a/tests/web_2/index_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-main() {
-  var a = [0];
-  Expect.equals(0, a[0]);
-
-  a = [1, 2];
-  Expect.equals(1, a[0]);
-  Expect.equals(2, a[1]);
-
-  a[0] = 42;
-  Expect.equals(42, a[0]);
-  Expect.equals(2, a[1]);
-
-  a[1] = 43;
-  Expect.equals(42, a[0]);
-  Expect.equals(43, a[1]);
-
-  a[1] += 2;
-  Expect.equals(45, a[1]);
-  a[1] -= a[1];
-  Expect.equals(0, a[1]);
-
-  var b = a[1]++;
-  Expect.equals(1, a[1]);
-  Expect.equals(0, b);
-
-  b = ++a[1];
-  Expect.equals(2, a[1]);
-  Expect.equals(2, b);
-
-  b = a[1]--;
-  Expect.equals(1, a[1]);
-  Expect.equals(2, b);
-
-  b = --a[1];
-  Expect.equals(0, a[1]);
-  Expect.equals(0, b);
-}
diff --git a/tests/web_2/indirect_type_literal_test.dart b/tests/web_2/indirect_type_literal_test.dart
deleted file mode 100644
index c1b27cbd37a..00000000000
--- a/tests/web_2/indirect_type_literal_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import "package:expect/expect.dart";
-
-class A<T> {}
-
-class B<T extends num> {}
-
-class Indirect<T> {
-  Type get type => T;
-}
-
-void main() {
-  Expect.equals(A, new Indirect<A>().type);
-  Expect.equals(A, new Indirect<A<dynamic>>().type);
-  Expect.notEquals(A, new Indirect<A<num>>().type);
-  Expect.equals(B, new Indirect<B>().type);
-  Expect.equals(B, new Indirect<B<num>>().type);
-  Expect.notEquals(B, new Indirect<B<int>>().type);
-}
diff --git a/tests/web_2/inference_super_set_call_test.dart b/tests/web_2/inference_super_set_call_test.dart
deleted file mode 100644
index be138adc628..00000000000
--- a/tests/web_2/inference_super_set_call_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for dart2js: we incorrectly modeled `super.x = rhs` as a
-// call and not an assignment, so the type of the expression was incorrectly
-// assumed to be the return type of the setter rather than the type of the rhs.
-import 'package:expect/expect.dart';
-
-abstract class A {
-  set x(v) {}
-  set z(v) {}
-  set y(v) => 'hi';
-}
-
-class S extends A {
-  var _x; //      was bad: inferred as null, than [null | int]
-  dynamic _y = ''; // was bad: inferred as String, rather than [String | int]
-  var _z; //      was ok : inferred as [null | int]
-
-  set x(v) {
-    _x = super.x = v;
-  }
-
-  set z(v) {
-    super.z = v;
-    _z = v;
-  }
-
-  set y(v) {
-    _y = super.y = v;
-  }
-
-  get isXNull => _x == null;
-  get isZNull => _z == null;
-}
-
-main() {
-  var s = new S()
-    ..x = 2
-    ..y = 2
-    ..z = 2;
-  Expect.equals(false, s.isXNull); //      was incorrectly optimized to 'true'
-  Expect.equals(false, s._y is String); // was incorrectly optimized to 'true'
-  Expect.equals(false, s.isZNull); //      prints false
-}
diff --git a/tests/web_2/inferrer_is_int_test.dart b/tests/web_2/inferrer_is_int_test.dart
deleted file mode 100644
index 0f58debbd20..00000000000
--- a/tests/web_2/inferrer_is_int_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that dart2js's inferrer and code optimizers know a double
-// literal might become an int at runtime.
-
-import "package:expect/expect.dart";
-
-@pragma('vm:never-inline')
-@pragma('dart2js:noInline')
-callWithStringAndDouble(value) {
-  () => 42;
-  if (value is! int) throw new ArgumentError(value);
-  return 42;
-}
-
-@pragma('vm:never-inline')
-@pragma('dart2js:noInline')
-callWithDouble(value) {
-  () => 42;
-  if (value is! int) throw new ArgumentError(value);
-  return 42;
-}
-
-main() {
-  Expect.throws(
-      () => callWithStringAndDouble('foo'), (e) => e is ArgumentError);
-  Expect.equals(42, callWithStringAndDouble(0.0));
-  Expect.equals(42, callWithDouble(0.0));
-}
diff --git a/tests/web_2/injected_cast_test.dart b/tests/web_2/injected_cast_test.dart
deleted file mode 100644
index b2c83346348..00000000000
--- a/tests/web_2/injected_cast_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-var field;
-
-class Class {
-  @pragma('dart2js:noInline')
-  method(int i, int j, int k) {}
-}
-
-@pragma('dart2js:noInline')
-test1(dynamic c, num n) {
-  if (c is Class) {
-    c.method(field = 41, n, field = 42);
-  }
-}
-
-@pragma('dart2js:noInline')
-test2(dynamic c, num n) {
-  if (c is! Class) return;
-  c.method(field = 86, n, field = 87);
-}
-
-main() {
-  try {
-    test1(new Class(), 0.5);
-    field = 123;
-    field = 123;
-  } catch (e) {}
-  // CFE inserts the implicit cast directly on the argument expression, making
-  // it fail before later arguments are evaluated.
-  Expect.equals(41, field);
-
-  try {
-    test2(new Class(), 0.5);
-    field = 321;
-    field = 321;
-  } catch (e) {}
-  // dart2js inserts implicit casts, but does so after evaluating all arguments
-  // to ensure semantics match what it would be like to check the types when
-  // entering the callee.
-  Expect.equals(87, field);
-}
diff --git a/tests/web_2/inline_generic_test.dart b/tests/web_2/inline_generic_test.dart
deleted file mode 100644
index aa621b6b5c2..00000000000
--- a/tests/web_2/inline_generic_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-/// Test that inlining of constructors with `double` as type argument registers
-/// that double is need for checking passed values.
-
-class C<T> implements D<T> {
-  T a;
-
-  C.gen(this.a);
-}
-
-class D<T> {
-  factory D.fact(T a) => new C<T>.gen(a);
-}
-
-main() {
-  new C<double>.gen(0.5); //# 01: ok
-  new D<double>.fact(0.5); //# 02: ok
-  <double>[].add(0.5); //# 03: ok
-  <int, double>{}[0] = 0.5; //# 04: ok
-}
diff --git a/tests/web_2/inline_position_crash_source.dart b/tests/web_2/inline_position_crash_source.dart
deleted file mode 100644
index ca43679cd5a..00000000000
--- a/tests/web_2/inline_position_crash_source.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-part of inline_position_crash_test;
-
-/*******************************************************************************
- * Long comment to make positions in this file exceed those in
- * 'inline_position_crash_source.dart'.
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- */
-class Super {
-  final fisk;
-  Super() : fisk = (() => null);
-}
diff --git a/tests/web_2/inline_position_crash_test.dart b/tests/web_2/inline_position_crash_test.dart
deleted file mode 100644
index 6f5d1822cad..00000000000
--- a/tests/web_2/inline_position_crash_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-library inline_position_crash_test;
-
-part 'inline_position_crash_source.dart';
-
-class Sub extends Super {
-  Sub() : super();
-}
-
-main() {
-  new Sub();
-}
diff --git a/tests/web_2/instantiation_stub_2_test.dart b/tests/web_2/instantiation_stub_2_test.dart
deleted file mode 100644
index 7c83a4cb3f0..00000000000
--- a/tests/web_2/instantiation_stub_2_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-List<T> foo<T>([T a1, T a2, T a3, T a4, T a5, T a6, T a7]) =>
-    <T>[a1, a2, a3, a4, a5, a6, a7];
-
-class CC {
-  List<T> bar<T, U, V>([T a1, T a2, T a3, T a4, T a5, T a6]) =>
-      <T>[a1, a2, a3, a4, a5, a6];
-}
-
-main() {
-  // We expect a call$1$5 entry for foo, accessed nowhere else in the program
-  // except via the call$5 entry on the instantiation.
-  List<int> Function(int, int, int, int, int) f = foo;
-  Expect.equals(4, f(1, 2, 3, 4, 5)[3]);
-
-  // We expect a bar$3$4 entry for bar, accessed nowhere else in the program
-  // except via the call$4 entry on the instantiation.
-  var o = new CC();
-  List<String> Function(String, String, String, String) g = o.bar;
-  Expect.equals('abcdnullnull', g('a', 'b', 'c', 'd').join(''));
-}
diff --git a/tests/web_2/instantiation_stub_test.dart b/tests/web_2/instantiation_stub_test.dart
deleted file mode 100644
index 85224986691..00000000000
--- a/tests/web_2/instantiation_stub_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-// This needs one-arg instantiation.
-@pragma('dart2js:noInline')
-T f1a<T>(T t) => t;
-
-// This needs no instantiation because it is not closurized.
-@pragma('dart2js:noInline')
-T f1b<T>(T t1, T t2) => t1;
-
-class Class {
-  // This needs two-arg instantiation.
-  @pragma('dart2js:noInline')
-  bool f2a<T, S>(T t, S s) => t == s;
-
-  // This needs no instantiation because it is not closurized.
-  @pragma('dart2js:noInline')
-  bool f2b<T, S>(T t, S s1, S s2) => t == s1;
-}
-
-@pragma('dart2js:noInline')
-int method1(int i, int Function(int) f) => f(i);
-
-@pragma('dart2js:noInline')
-bool method2(int a, int b, bool Function(int, int) f) => f(a, b);
-
-@pragma('dart2js:noInline')
-int method3(int a, int b, int c, int Function(int, int, int) f) => f(a, b, c);
-
-main() {
-  // This needs three-arg instantiation.
-  T local1<T, S, U>(T t, S s, U u) => t;
-
-  // This needs no instantiation because but a local function is always
-  // closurized so we assume it does.
-  T local2<T, S, U>(T t, S s, U u1, U u2) => t;
-
-  Expect.equals(42, method1(42, f1a));
-  Expect.equals(f1b(42, 87), 42);
-
-  Class c = new Class();
-  Expect.isFalse(method2(0, 1, c.f2a));
-  Expect.isFalse(c.f2b(42, 87, 123));
-
-  Expect.equals(0, method3(0, 1, 2, local1));
-  Expect.equals(42, local2(42, 87, 123, 256));
-}
diff --git a/tests/web_2/int_index_test.dart b/tests/web_2/int_index_test.dart
deleted file mode 100644
index d3f07e65e37..00000000000
--- a/tests/web_2/int_index_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-main() {
-  var a = [0, 1];
-  a[1.2]; //                      //# 01: compile-time error
-  a[1.2] = 4; //                  //# 02: compile-time error
-  checkIndex(a, 1.4); //# 03: runtime error
-  checkIndexedAssignment(a, 1.4); //# 04: runtime error
-  checkIndex(a, 0);
-  checkIndexedAssignment(a, 0);
-}
-
-checkIndex(a, b) {
-  a[b];
-}
-
-checkIndexedAssignment(a, b) {
-  a[b] = 1;
-}
diff --git a/tests/web_2/interceptor_named_arguments_test.dart b/tests/web_2/interceptor_named_arguments_test.dart
deleted file mode 100644
index 46d709c5fbc..00000000000
--- a/tests/web_2/interceptor_named_arguments_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that the proper one-shot interceptor is used for different
-// combinations of named arguments.
-import "package:expect/expect.dart";
-
-// Use dart:html to get interceptors into play.
-import "dart:html";
-
-// [createFragment] has the same signature as in [Element].
-class Other {
-  createFragment(html, {validator, treeSanitizer}) {
-    int result = 0;
-    result += validator == null ? 0 : 2;
-    result += treeSanitizer == null ? 0 : 1;
-    return result;
-  }
-}
-
-@pragma('dart2js:noInline')
-bool wontTell(bool x) => x;
-
-// Ensure that we use the interceptor only once per context so that we
-// actually get a one-shot interceptor. This is a little brittle...
-@pragma('dart2js:noInline')
-testA(thing) {
-  Expect.equals(0, thing.createFragment(null));
-}
-
-@pragma('dart2js:noInline')
-testB(thing) {
-  Expect.equals(2, thing.createFragment(null, validator: 1));
-}
-
-@pragma('dart2js:noInline')
-testC(thing) {
-  Expect.equals(1, thing.createFragment(null, treeSanitizer: 1));
-}
-
-@pragma('dart2js:noInline')
-testD(thing) {
-  Expect.equals(3, thing.createFragment(null, validator: 1, treeSanitizer: 1));
-}
-
-main() {
-  // Ensure we get interceptors into play.
-  var thing = wontTell(true) ? new Other() : new DivElement();
-  testA(thing);
-  testB(thing);
-  testC(thing);
-  testD(thing);
-}
diff --git a/tests/web_2/interface_type_optimization_test.dart b/tests/web_2/interface_type_optimization_test.dart
deleted file mode 100644
index a2963a93393..00000000000
--- a/tests/web_2/interface_type_optimization_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-main() {
-  var a = new A();
-  Expect.equals(42, a.foo(42));
-  var b = new B();
-  Expect.equals(42 - 87, b.foo(42));
-
-  // Make sure we do not try to track the parameter type of the
-  // argument passed to test.
-  Expect.equals("is !A", test(0));
-  Expect.equals("is !A", test("fisk"));
-
-  // Passing b to test should lead to an exception because the string
-  // we end up passing to B.foo does not implement the - operator.
-  Expect.throws(() => test(b), (e) => e is NoSuchMethodError);
-}
-
-// TODO(kasperl): Make sure this does not get inlined.
-test(x) {
-  if (x is A) {
-    // The selector we use for this call site has the receiver type A
-    // because of data flow analysis. We have to make sure that we
-    // realize that this does not rule out calling B.foo because B
-    // implements A.
-    return x.foo("hest");
-  } else {
-    return "is !A";
-  }
-}
-
-class A {
-  foo(var x) => x;
-}
-
-class B implements A {
-  foo(var x) => x - 87;
-}
diff --git a/tests/web_2/internal/40296_test.dart b/tests/web_2/internal/40296_test.dart
deleted file mode 100644
index 4e40bcc8dd0..00000000000
--- a/tests/web_2/internal/40296_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-@JS()
-library test;
-
-import 'dart:async';
-import 'dart:_interceptors';
-import 'dart:js' as js;
-import 'package:expect/expect.dart';
-import 'package:js/js.dart';
-
-const String JS_CODE = """
-function A() {
-  this.x = 1;
-}
-self.foo = new A();
-""";
-
-@JS('A')
-@anonymous
-class Foo {}
-
-@JS('foo')
-external dynamic get foo;
-
-main() {
-  js.context.callMethod('eval', [JS_CODE]);
-  Expect.isTrue(foo is FutureOr<Foo>);
-  Expect.isTrue(foo is JSObject);
-}
diff --git a/tests/web_2/internal/deferred/deferred_custom_loader_lib.dart b/tests/web_2/internal/deferred/deferred_custom_loader_lib.dart
deleted file mode 100644
index 4cf1b9d7926..00000000000
--- a/tests/web_2/internal/deferred/deferred_custom_loader_lib.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-foo() => 499;
diff --git a/tests/web_2/internal/deferred/deferred_custom_loader_test.dart b/tests/web_2/internal/deferred/deferred_custom_loader_test.dart
deleted file mode 100644
index 50c9e971f79..00000000000
--- a/tests/web_2/internal/deferred/deferred_custom_loader_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-import 'dart:_foreign_helper' show JS;
-
-import 'deferred_custom_loader_lib.dart' deferred as def;
-
-void setup() {
-  JS('', r"""
-(function(){
-  // In d8 we don't have any way to load the content of the file, so just use
-  // the preamble's loader.
-  if (!self.dartDeferredLibraryLoader) {
-    self.dartDeferredLibraryLoader = function(uri, success, error) {
-      var req = new XMLHttpRequest();
-      req.addEventListener("load", function() {
-        eval(this.responseText);
-        success();
-      });
-      req.open("GET", uri);
-      req.send();
-    };
- }
-})()
-""");
-}
-
-runTest() async {
-  setup();
-  await def.loadLibrary();
-  Expect.equals(499, def.foo());
-}
-
-main() {
-  asyncStart();
-  runTest().then((_) => asyncEnd());
-}
diff --git a/tests/web_2/internal/deferred/load_in_correct_order_lib1.dart b/tests/web_2/internal/deferred/load_in_correct_order_lib1.dart
deleted file mode 100644
index 83f57061f1f..00000000000
--- a/tests/web_2/internal/deferred/load_in_correct_order_lib1.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// @dart = 2.7
-
-import 'load_in_correct_order_lib4.dart';
-import 'load_in_correct_order_lib5.dart';
-import 'load_in_correct_order_lib7.dart';
-
-class C1 {
-  final a;
-  final b;
-  final q = c7;
-  const C1(this.a, this.b);
-}
-
-const c1 = const C1(c4, c5);
diff --git a/tests/web_2/internal/deferred/load_in_correct_order_lib2.dart b/tests/web_2/internal/deferred/load_in_correct_order_lib2.dart
deleted file mode 100644
index e1ed8502c02..00000000000
--- a/tests/web_2/internal/deferred/load_in_correct_order_lib2.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// @dart = 2.7
-
-import 'load_in_correct_order_lib5.dart';
-import 'load_in_correct_order_lib6.dart';
-import 'load_in_correct_order_lib7.dart';
-
-class C2 {
-  final c;
-  final d;
-  final q = c7;
-  const C2(this.c, this.d);
-}
-
-const c2 = const C2(c5, c6);
diff --git a/tests/web_2/internal/deferred/load_in_correct_order_lib3.dart b/tests/web_2/internal/deferred/load_in_correct_order_lib3.dart
deleted file mode 100644
index 0aa50ca15db..00000000000
--- a/tests/web_2/internal/deferred/load_in_correct_order_lib3.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// @dart = 2.7
-
-import 'load_in_correct_order_lib4.dart';
-import 'load_in_correct_order_lib6.dart';
-import 'load_in_correct_order_lib7.dart';
-
-class C3 {
-  final e;
-  final f;
-  final q = c7;
-  const C3(this.e, this.f);
-}
-
-const c3 = const C3(c4, c6);
diff --git a/tests/web_2/internal/deferred/load_in_correct_order_lib4.dart b/tests/web_2/internal/deferred/load_in_correct_order_lib4.dart
deleted file mode 100644
index 2d067640922..00000000000
--- a/tests/web_2/internal/deferred/load_in_correct_order_lib4.dart
+++ /dev/null
@@ -1,8 +0,0 @@
-// @dart = 2.7
-
-class C4 {
-  final value = 499;
-  const C4();
-}
-
-const c4 = const C4();
diff --git a/tests/web_2/internal/deferred/load_in_correct_order_lib5.dart b/tests/web_2/internal/deferred/load_in_correct_order_lib5.dart
deleted file mode 100644
index db0345b624a..00000000000
--- a/tests/web_2/internal/deferred/load_in_correct_order_lib5.dart
+++ /dev/null
@@ -1,8 +0,0 @@
-// @dart = 2.7
-
-class C5 {
-  final value = 500;
-  const C5();
-}
-
-const c5 = const C5();
diff --git a/tests/web_2/internal/deferred/load_in_correct_order_lib6.dart b/tests/web_2/internal/deferred/load_in_correct_order_lib6.dart
deleted file mode 100644
index a78e3ed5434..00000000000
--- a/tests/web_2/internal/deferred/load_in_correct_order_lib6.dart
+++ /dev/null
@@ -1,8 +0,0 @@
-// @dart = 2.7
-
-class C6 {
-  final value = 501;
-  const C6();
-}
-
-const c6 = const C6();
diff --git a/tests/web_2/internal/deferred/load_in_correct_order_lib7.dart b/tests/web_2/internal/deferred/load_in_correct_order_lib7.dart
deleted file mode 100644
index 7359834484b..00000000000
--- a/tests/web_2/internal/deferred/load_in_correct_order_lib7.dart
+++ /dev/null
@@ -1,8 +0,0 @@
-// @dart = 2.7
-
-class C7 {
-  final value = 502;
-  const C7();
-}
-
-const c7 = const C7();
diff --git a/tests/web_2/internal/deferred/load_in_correct_order_test.dart b/tests/web_2/internal/deferred/load_in_correct_order_test.dart
deleted file mode 100644
index 55be33f7e09..00000000000
--- a/tests/web_2/internal/deferred/load_in_correct_order_test.dart
+++ /dev/null
@@ -1,151 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-/// This test creates a scenario to simulate what happens if hunks are loaded
-/// out of order. The compiler should initialize hunks in order regardless, but
-/// may do so in parallel while some hunks are not loaded yet.
-///
-/// To create a good number of hunks we created an import graph with 3 deferred
-/// imports and 7 libraries, we made pair-wise dependencies to be able to create
-/// 2^3 (8) partitions of the program (including the main hunk) that end up
-/// corresponding to the libraries themselves. In particular, the import graph
-/// looks like this:
-///
-///   main ---> 1, 2, 3  (deferred)
-///      1 --->         4, 5,    7
-///      2 --->            5, 6, 7
-///      3 --->         4,    6, 7
-///
-/// So each library maps to a deferred hunk:
-///   library 1 = hunk of code only used by 1
-///   library 2 = hunk of code only used by 2
-///   library 3 = hunk of code only used by 3
-///   library 4 = hunk of code shared by 1 & 3
-///   library 5 = hunk of code shared by 1 & 2
-///   library 6 = hunk of code shared by 2 & 3
-///   library 7 = hunk of shared by 1, 2 & 3
-///
-/// In the future we may optimize and combine hunks, at that point this test
-/// needs to be rewritten.
-import 'package:async_helper/async_helper.dart';
-import 'package:expect/expect.dart';
-import 'dart:async';
-
-import 'dart:_foreign_helper' show JS;
-
-import 'load_in_correct_order_lib1.dart' deferred as d1;
-import 'load_in_correct_order_lib2.dart' deferred as d2;
-import 'load_in_correct_order_lib3.dart' deferred as d3;
-
-main() {
-  asyncStart();
-  runTest().then((_) => asyncEnd());
-}
-
-runTest() async {
-  setup();
-  await d1.loadLibrary();
-  Expect.equals(499, d1.c1.a.value);
-
-  // The logic below expects loadLibrary calls to happen on a new microtask.
-  await new Future(() {});
-  await d2.loadLibrary();
-  Expect.equals(500, d2.c2.c.value);
-
-  await new Future(() {});
-  await d3.loadLibrary();
-  Expect.equals(501, d3.c3.f.value);
-}
-
-void setup() {
-  JS('', r"""
-(function() {
-// In d8 we don't have any way to load the content of the file via XHR, but we
-// can use the "load" instruction. A hook is already defined in d8 for this
-// reason.
-self.isD8 = !!self.dartDeferredLibraryLoader;
-
-self.uris = [];
-self.successCallbacks = [];
-self.total = 0;
-self.content = {};
-
-// This test has 3 loadLibrary calls, this array contains how many hunks will be
-// loaded by each call.
-self.currentLoadLibraryCall = 0;
-self.filesPerLoadLibraryCall = [4, 2, 1];
-
-// Download uri via an XHR
-self.download = function(uri) {
-  var req = new XMLHttpRequest();
-  req.addEventListener("load", function() {
-    self.content[uri] = this.responseText;
-    self.increment();
-  });
-  req.open("GET", uri);
-  req.send();
-};
-
-// Note that a new hunk is already available to be loaded, wait until all
-// expected hunks are available and then evaluate their contents to actually
-// load them.
-self.increment = function() {
-  self.total++;
-  if (self.total == self.filesPerLoadLibraryCall[self.currentLoadLibraryCall]) {
-    self.doActualLoads();
-  }
-};
-
-// Hook to control how we load hunks (we force them to be out of order).
-self.dartDeferredLibraryLoader = function(uri, success, error) {
-  self.uris.push(uri);
-  self.successCallbacks.push(success);
-  if (isD8) {
-    self.increment();
-  } else {
-    self.download(uri);
-  }
-};
-
-// Do the actual load of the hunk and call the corresponding success callback.
-self.doLoad = function(i) {
-  self.setTimeout(function () {
-  var uri = self.uris[i];
-  if (self.isD8) {
-    load(uri);
-  } else {
-    eval(self.content[uri]);
-  }
-  (self.successCallbacks[i])();
-  }, 0);
-};
-
-// Do all the loads for a load library call. On the first load library call,
-// purposely load the hunks out of order.
-self.doActualLoads = function() {
-  self.currentLoadLibraryCall++;
-  if (self.total == 4) {
-    self.doLoad(3); // load purposely out of order!
-    self.doLoad(0);
-    self.doLoad(1);
-    self.doLoad(2);
-  } else {
-    for (var i = 0; i < self.total; i++) {
-      self.doLoad(i);
-    }
-  }
-  setTimeout(self.reset, 0);
-};
-
-/// Reset the internal state to prepare for a new load library call.
-self.reset = function() {
-  self.total = 0;
-  self.uris = [];
-  self.successCallbacks = [];
-};
-})()
-""");
-}
diff --git a/tests/web_2/internal/deferred_url_test.dart b/tests/web_2/internal/deferred_url_test.dart
deleted file mode 100644
index 813fa2ad7e7..00000000000
--- a/tests/web_2/internal/deferred_url_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.11
-import 'dart:_js_helper';
-import 'dart:_foreign_helper';
-import 'dart:_js_embedded_names';
-
-import 'package:expect/expect.dart';
-
-main() {
-  String currentScriptUrl = 'x/main.dart.js';
-  String expectedPartUrl = 'x/part.js';
-  // We make use of the multi-tests format to test multiple scenarios, that's
-  // because internally dart:_js_helper computes what the current script
-  // location is and caches the result in a final variable. As a result, we
-  // can only set it once per test.
-  currentScriptUrl = 'x/y/main.dart.js'; //# 01: ok
-  expectedPartUrl = 'x/y/part.js'; //# 01: continued
-
-  currentScriptUrl = 'main.dart.js'; //# 02: ok
-  expectedPartUrl = 'part.js'; //# 02: continued
-
-  currentScriptUrl = '/main.dart.js'; //# 03: ok
-  expectedPartUrl = '/part.js'; //# 03: continued
-
-  // Override the currentScript. This depends on the internal implementation
-  // of [thisScript].
-  JS('', '# = {"src": #}', JS_EMBEDDED_GLOBAL('', CURRENT_SCRIPT),
-      currentScriptUrl);
-  Object url = getBasedScriptUrlForTesting("part.js");
-  Expect.equals(expectedPartUrl, JS('', '#.toString()', url));
-}
diff --git a/tests/web_2/internal/extract_type_arguments_1_test.dart b/tests/web_2/internal/extract_type_arguments_1_test.dart
deleted file mode 100644
index 16852f097bc..00000000000
--- a/tests/web_2/internal/extract_type_arguments_1_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-// dart2jsOptions=--omit-implicit-checks
-
-import 'package:expect/expect.dart';
-import 'dart:_internal' show extractTypeArguments;
-
-class C<T> {}
-
-main() {
-  test(new C<int>(), int);
-  test(new C<String>(), String);
-}
-
-test(dynamic a, T) {
-  Expect.equals(T, extractTypeArguments<C>(a, <T>() => T));
-}
diff --git a/tests/web_2/internal/extract_type_arguments_2_test.dart b/tests/web_2/internal/extract_type_arguments_2_test.dart
deleted file mode 100644
index da7548c5e9d..00000000000
--- a/tests/web_2/internal/extract_type_arguments_2_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-// dart2jsOptions=--omit-implicit-checks
-
-import 'package:expect/expect.dart';
-import 'dart:_internal' show extractTypeArguments;
-
-class CC<A, B, C, D, E> {}
-
-class X {}
-
-main() {
-  test(new CC<X, X, X, X, int>(), int);
-  test(new CC<X, X, X, X, String>(), String);
-}
-
-test(dynamic a, T) {
-  Expect.equals(T, extractTypeArguments<CC>(a, <_1, _2, _3, _4, T>() => T));
-}
diff --git a/tests/web_2/internal/extract_type_arguments_3_test.dart b/tests/web_2/internal/extract_type_arguments_3_test.dart
deleted file mode 100644
index c6ef560be9c..00000000000
--- a/tests/web_2/internal/extract_type_arguments_3_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-// dart2jsOptions=--omit-implicit-checks
-
-import 'package:expect/expect.dart';
-import 'dart:_internal' show extractTypeArguments;
-
-main() {
-  Expect.equals(int, extractTypeArguments<List>('hello'.codeUnits, <T>() => T));
-}
diff --git a/tests/web_2/internal/javascriptobject_extensions_test.dart b/tests/web_2/internal/javascriptobject_extensions_test.dart
deleted file mode 100644
index d33f998b24d..00000000000
--- a/tests/web_2/internal/javascriptobject_extensions_test.dart
+++ /dev/null
@@ -1,188 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Tests that JS objects can be referred to as extensions of JavaScriptObject.
-
-@JS()
-library javascriptobject_extensions_test;
-
-import 'package:js/js.dart';
-import 'package:js/js_util.dart';
-import 'package:expect/minitest.dart';
-
-import 'dart:html' show Window;
-import 'dart:_interceptors'
-    show
-        LegacyJavaScriptObject,
-        JavaScriptObject,
-        UnknownJavaScriptObject,
-        JSObject;
-
-@JS()
-external void eval(String code);
-
-class InterfaceClass {}
-
-@JS('JSClass')
-class JSClass implements InterfaceClass {
-  external JSClass();
-  external String get name;
-}
-
-class ImplementationClass implements JSClass {
-  String get name => 'ImplementationClass';
-}
-
-@JS()
-@anonymous
-class AnonymousClass {
-  external String get name;
-}
-
-class DartClass {}
-
-external AnonymousClass get anonymousObj;
-
-external Window get window;
-
-@JS('window')
-external dynamic get windowDynamic;
-
-// Extension on JavaScriptObject. In the future, when extension types are
-// introduced, this will be explicitly disallowed.
-extension JavaScriptObjectExtension on JavaScriptObject {
-  // Use `className` instead so there's no ambiguity on what method is called.
-  String get className => getProperty(this, 'name');
-}
-
-// Test runtime type checks and casts.
-@pragma('dart2js:noInline')
-void runtimeIsAndAs<T>(instance, [bool expectation = true]) {
-  expect(instance is T, expectation);
-  expect(() => instance as T, expectation ? returnsNormally : throws);
-}
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-JavaScriptObject returnJavaScriptObject() => throw '';
-
-JSClass returnJS() => throw '';
-
-AnonymousClass returnAnon() => throw '';
-
-UnknownJavaScriptObject returnUnknownJavaScriptObject() => throw '';
-
-ImplementationClass returnImpl() => throw '';
-
-main() {
-  eval(r'''
-    function JSClass() {
-      this.name = 'JSClass';
-    }
-    self.anonymousObj = {
-      name: 'AnonymousClass',
-    };
-  ''');
-
-  // Instances of JS classes can be casted to JavaScriptObject and back.
-  var jsObj = JSClass();
-  expect(jsObj is JavaScriptObject, true);
-  runtimeIsAndAs<JavaScriptObject>(jsObj);
-  var javaScriptObject = jsObj as JavaScriptObject;
-  expect(javaScriptObject.className == 'JSClass', true);
-  expect(javaScriptObject is JSClass, true);
-  runtimeIsAndAs<JSClass>(javaScriptObject);
-
-  // Object literals can be casted to JavaScriptObject and back.
-  expect(anonymousObj is JavaScriptObject, true);
-  runtimeIsAndAs<JavaScriptObject>(anonymousObj);
-  javaScriptObject = anonymousObj as JavaScriptObject;
-  expect(javaScriptObject.className == 'AnonymousClass', true);
-  expect(javaScriptObject is AnonymousClass, true);
-  runtimeIsAndAs<AnonymousClass>(javaScriptObject);
-
-  // Dart objects that don't implement a JS type cannot be casted to or from
-  // JavaScriptObject.
-  var dartObj = DartClass();
-  expect(dartObj is JavaScriptObject, false);
-  runtimeIsAndAs<JavaScriptObject>(dartObj, false);
-  expect(javaScriptObject is DartClass, false);
-  runtimeIsAndAs<DartClass>(javaScriptObject, false);
-
-  // Web Native classes are subclasses of JavaScriptObject, but not
-  // LegacyJavaScriptObject.
-  expect(window is JavaScriptObject, true);
-  runtimeIsAndAs<JavaScriptObject>(window, true);
-  runtimeIsAndAs<JavaScriptObject>(windowDynamic, true);
-  javaScriptObject = jsObj as JavaScriptObject;
-  expect(javaScriptObject is Window, false);
-  runtimeIsAndAs<Window>(javaScriptObject, false);
-
-  expect(window is LegacyJavaScriptObject, false);
-  runtimeIsAndAs<LegacyJavaScriptObject>(window, false);
-  runtimeIsAndAs<LegacyJavaScriptObject>(windowDynamic, false);
-  var legacyJavaScriptObject = jsObj as LegacyJavaScriptObject;
-  expect(legacyJavaScriptObject is Window, false);
-  runtimeIsAndAs<Window>(legacyJavaScriptObject, false);
-
-  // Make sure `Object` methods work with JavaScriptObject like they do with JS
-  // interop objects.
-  expect(javaScriptObject == jsObj, true);
-  expect(javaScriptObject.hashCode, isNotNull);
-  expect(javaScriptObject.toString, isNotNull);
-  expect(javaScriptObject.noSuchMethod, isNotNull);
-  expect(javaScriptObject.runtimeType, isNotNull);
-
-  // Transitive is and as.
-  // JS type <: JavaScriptObject <: JSObject
-  expect(jsObj is JSObject, true);
-  runtimeIsAndAs<JSObject>(jsObj);
-  // JavaScriptObject <: JS type <: Dart interface
-  expect(javaScriptObject is InterfaceClass, true);
-  runtimeIsAndAs<InterfaceClass>(javaScriptObject);
-  // Dart implementation <: JS type <: JavaScriptObject
-  var impl = ImplementationClass();
-  expect(impl is JavaScriptObject, true);
-  runtimeIsAndAs<JavaScriptObject>(impl);
-  // Dart implementation <: JS type <: JavaScriptObject <: JSObject
-  expect(impl is JSObject, true);
-  runtimeIsAndAs<JSObject>(impl);
-
-  // Test that JavaScriptObject can be used in place of package:js types in
-  // function types, and vice versa.
-  expect(returnJavaScriptObject is JSClass Function(), true);
-  expect(returnJS is JavaScriptObject Function(), true);
-  expect(returnJavaScriptObject is AnonymousClass Function(), true);
-  expect(returnAnon is JavaScriptObject Function(), true);
-
-  // Transitive subtyping.
-  // UnknownJavaScriptObject <: JavaScriptObject <: JS type
-  expect(returnUnknownJavaScriptObject is JSClass Function(), true);
-  // JS type <: JavaScriptObject <: JSObject
-  expect(returnJS is JSObject Function(), true);
-  // JavaScriptObject <: JS type <: Dart interface
-  expect(returnJavaScriptObject is InterfaceClass Function(), true);
-  // Dart implementation <: JS type <: JavaScriptObject
-  expect(returnImpl is JavaScriptObject Function(), true);
-  // UnknownJavaScriptObject <: JavaScriptObject <: JS type <: Dart interface
-  expect(returnUnknownJavaScriptObject is InterfaceClass Function(), true);
-  // Dart implementation <: JS type <: JavaScriptObject <: JSObject
-  expect(returnImpl is JSObject Function(), true);
-
-  // Run above subtype checks but at runtime.
-  expect(confuse(returnJavaScriptObject) is JSClass Function(), true);
-  expect(confuse(returnJS) is JavaScriptObject Function(), true);
-  expect(confuse(returnJavaScriptObject) is AnonymousClass Function(), true);
-  expect(confuse(returnAnon) is JavaScriptObject Function(), true);
-
-  expect(confuse(returnUnknownJavaScriptObject) is JSClass Function(), true);
-  expect(confuse(returnJS) is JSObject Function(), true);
-  expect(confuse(returnJavaScriptObject) is InterfaceClass Function(), true);
-  expect(confuse(returnImpl) is JavaScriptObject Function(), true);
-  expect(confuse(returnUnknownJavaScriptObject) is InterfaceClass Function(),
-      true);
-  expect(confuse(returnImpl) is JSObject Function(), true);
-}
diff --git a/tests/web_2/internal/lax_runtime_type_closure_to_string1_test.dart b/tests/web_2/internal/lax_runtime_type_closure_to_string1_test.dart
deleted file mode 100644
index 210d320158b..00000000000
--- a/tests/web_2/internal/lax_runtime_type_closure_to_string1_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong --omit-implicit-checks --lax-runtime-type-to-string
-
-import 'package:expect/expect.dart';
-import 'dart:_foreign_helper' show JS_GET_FLAG;
-
-class Class<T> {
-  Class();
-}
-
-main() {
-  local1() {}
-  local2(int i) => i;
-
-  var toString = '${local1.runtimeType}';
-  if ('$Object' == 'Object') {
-    // `true` if non-minified.
-    Expect.equals("Closure0Args", toString);
-  }
-  print(toString);
-  local2(0);
-  new Class();
-}
diff --git a/tests/web_2/internal/lax_runtime_type_closure_to_string2_test.dart b/tests/web_2/internal/lax_runtime_type_closure_to_string2_test.dart
deleted file mode 100644
index abff2a39237..00000000000
--- a/tests/web_2/internal/lax_runtime_type_closure_to_string2_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong --omit-implicit-checks --lax-runtime-type-to-string
-
-import 'package:expect/expect.dart';
-import 'dart:_foreign_helper' show JS_GET_FLAG;
-
-class Class<T> {
-  Class();
-}
-
-main() {
-  local1<T>() {}
-  local2<T>(t) => t;
-
-  var toString = '${local1.runtimeType}';
-  if ('$Object' == 'Object') {
-    // `true` if non-minified.
-    Expect.equals("Closure", toString);
-  }
-  print(toString);
-  local2(0);
-  new Class();
-}
diff --git a/tests/web_2/internal/lax_runtime_type_closure_to_string7_test.dart b/tests/web_2/internal/lax_runtime_type_closure_to_string7_test.dart
deleted file mode 100644
index 4c2fe3a3e2d..00000000000
--- a/tests/web_2/internal/lax_runtime_type_closure_to_string7_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--omit-implicit-checks --lax-runtime-type-to-string
-
-import 'package:expect/expect.dart';
-import 'dart:_foreign_helper' show JS_GET_FLAG;
-
-class Class<T> {
-  Class();
-}
-
-@pragma('dart2js:noInline')
-test<Q>() {
-  Q local1(Q) {}
-  local2(int i) => i;
-
-  var toString = '${local1.runtimeType}';
-  if ('$Object' == 'Object') {
-    // `true` if non-minified.
-    Expect.equals("Closure", toString);
-  }
-  print(toString);
-  local2(0);
-  new Class();
-}
-
-main() {
-  test<int>();
-  test<String>();
-}
diff --git a/tests/web_2/internal/object_members_test.dart b/tests/web_2/internal/object_members_test.dart
deleted file mode 100644
index 02092eb1022..00000000000
--- a/tests/web_2/internal/object_members_test.dart
+++ /dev/null
@@ -1,80 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Make sure `Object` methods work as expected with `dart:html` and interop
-// types. The expectations here aren't guarantees that they should work a
-// particular way, but rather a way to monitor regressions/changes.
-
-@JS()
-library object_members_test;
-
-import 'package:js/js.dart';
-import 'package:expect/minitest.dart';
-
-import 'dart:html';
-import 'dart:_interceptors' show JSObject;
-
-@JS()
-external void eval(String code);
-
-@JS()
-class JSClass {
-  external JSClass();
-}
-
-void main() {
-  eval(r'''
-    function JSClass() {}
-  ''');
-
-  // `dart:html` type.
-  var div = document.createElement('div');
-  expect(div == div, true);
-  expect(div == DomPointReadOnly(), false);
-  // Ensure that we get a random hash for each new instance. It should be
-  // improbable for this to fail across many runs if the hash is
-  // non-deterministic.
-  var hashCode = div.hashCode;
-  var attempts = 0;
-  var maxAttempts = 1000;
-  while (div.hashCode == hashCode && attempts < maxAttempts) {
-    div = document.createElement('div');
-    attempts++;
-  }
-  expect(attempts > 0 && attempts != maxAttempts, isTrue);
-  expect(div.toString, isNotNull);
-  expect(div.toString(), 'div');
-  expect(div.noSuchMethod, isNotNull);
-  var noSuchMethodErrorThrown = true;
-  try {
-    (div as dynamic).triggerNoSuchMethod();
-    noSuchMethodErrorThrown = false;
-  } catch (_) {}
-  expect(noSuchMethodErrorThrown, isTrue);
-  expect(div.runtimeType, DivElement);
-
-  // `toString` for `dart:html` types that do not have an overridden `toString`
-  // should look up the type through the proto.
-  expect(window.navigator.toString(), "Instance of 'Navigator'");
-
-  // Interop type.
-  var js = JSClass();
-  expect(js == js, true);
-  expect(js == JSClass(), false);
-  // TODO(srujzs): Modify this once interop has random hash codes.
-  hashCode = js.hashCode;
-  expect(hashCode, 0);
-  expect(hashCode, js.hashCode);
-  expect(js.toString, isNotNull);
-  // Should forward to underlying `toString` call.
-  expect(js.toString(), '[object Object]');
-  expect(js.noSuchMethod, isNotNull);
-  noSuchMethodErrorThrown = true;
-  try {
-    (js as dynamic).triggerNoSuchMethod();
-    noSuchMethodErrorThrown = false;
-  } catch (_) {}
-  expect(noSuchMethodErrorThrown, isTrue);
-  expect(js.runtimeType, JSObject);
-}
diff --git a/tests/web_2/internal/platform_environment_variable1_test.dart b/tests/web_2/internal/platform_environment_variable1_test.dart
deleted file mode 100644
index 204c6eab3df..00000000000
--- a/tests/web_2/internal/platform_environment_variable1_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// SharedOptions=-Ddart2js.test.platform.environment.variable=hello
-
-import 'dart:_js_helper' show testingGetPlatformEnvironmentVariable;
-import 'package:expect/expect.dart';
-
-main() {
-  Expect.equals('hello', testingGetPlatformEnvironmentVariable());
-}
diff --git a/tests/web_2/internal/platform_environment_variable2_test.dart b/tests/web_2/internal/platform_environment_variable2_test.dart
deleted file mode 100644
index b8ad8aa12c9..00000000000
--- a/tests/web_2/internal/platform_environment_variable2_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// No -D options.
-
-import 'dart:_js_helper' show testingGetPlatformEnvironmentVariable;
-import 'package:expect/expect.dart';
-
-main() {
-  Expect.equals('not-specified', testingGetPlatformEnvironmentVariable());
-}
diff --git a/tests/web_2/internal/rti/bind_test.dart b/tests/web_2/internal/rti/bind_test.dart
deleted file mode 100644
index f2b8babdaa6..00000000000
--- a/tests/web_2/internal/rti/bind_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'dart:_rti' as rti;
-import "package:expect/expect.dart";
-
-void checkRtiIdentical(Object rti1, Object rti2) {
-  var format = rti.testingRtiToString;
-  Expect.isTrue(
-      identical(rti1, rti2), 'identical(${format(rti1)}, ${format(rti2)}');
-}
-
-void checkToString(String expected, Object rti1) {
-  String result = rti.testingRtiToString(rti1);
-  if (expected == result) return;
-  Expect.equals(expected, result.replaceAll('minified:', ''));
-}
-
-test1() {
-  var universe = rti.testingCreateUniverse();
-
-  // Extend environment in one step
-  var env1a = rti.testingUniverseEval(universe, 'Foo');
-  var args1 = rti.testingUniverseEval(universe, '@<aaa,bbb>');
-  var env1b = rti.testingEnvironmentBind(universe, env1a, args1);
-
-  var rti1 = rti.testingEnvironmentEval(universe, env1b, 'AAA<0,1,2>');
-  checkToString('AAA<Foo, aaa, bbb>', rti1);
-
-  Expect.equals(
-      'binding(interface("Foo"), [interface("aaa"), interface("bbb")])',
-      rti.testingRtiToDebugString(env1b));
-
-  // Extend environment in two steps
-  var env2a = rti.testingUniverseEval(universe, 'Foo');
-  var args2a = rti.testingUniverseEval(universe, 'aaa');
-  var env2b = rti.testingEnvironmentBind(universe, env2a, args2a);
-  var args2b = rti.testingUniverseEval(universe, 'bbb');
-  var env2c = rti.testingEnvironmentBind(universe, env2b, args2b);
-
-  var rti2 = rti.testingEnvironmentEval(universe, env2c, 'AAA<0,1,2>');
-  checkToString('AAA<Foo, aaa, bbb>', rti2);
-
-  Expect.equals('binding(interface("Foo"), [interface("aaa")])',
-      rti.testingRtiToDebugString(env2b));
-  Expect.equals(
-      'binding(interface("Foo"), [interface("aaa"), interface("bbb")])',
-      rti.testingRtiToDebugString(env2c));
-
-  checkRtiIdentical(env1b, env2c);
-}
-
-main() {
-  test1();
-}
diff --git a/tests/web_2/internal/rti/bound_environment_test.dart b/tests/web_2/internal/rti/bound_environment_test.dart
deleted file mode 100644
index 6545b431903..00000000000
--- a/tests/web_2/internal/rti/bound_environment_test.dart
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'dart:_rti' as rti;
-import "package:expect/expect.dart";
-
-void checkRtiIdentical(Object rti1, Object rti2) {
-  var format = rti.testingRtiToString;
-  Expect.isTrue(
-      identical(rti1, rti2), 'identical(${format(rti1)}, ${format(rti2)}');
-}
-
-void checkToString(String expected, Object rti1) {
-  String result = rti.testingRtiToString(rti1);
-  if (expected == result) return;
-  Expect.equals(expected, result.replaceAll('minified:', ''));
-}
-
-test1() {
-  var universe = rti.testingCreateUniverse();
-
-  var env = rti.testingUniverseEval(universe, 'Foo<bool><int>');
-  var rti1 = rti.testingUniverseEval(universe, 'int');
-  var rti2 = rti.testingEnvironmentEval(universe, env, '1');
-
-  checkToString('int', rti1);
-  checkToString('int', rti2);
-  checkRtiIdentical(rti1, rti2);
-
-  var rti3 = rti.testingEnvironmentEval(universe, env, 'AAA<0,1,2>');
-  checkToString('AAA<Foo<bool>, int, bool>', rti3);
-}
-
-test2() {
-  var universe = rti.testingCreateUniverse();
-
-  // Generic class with one nested single-parameter function scope.
-  //   vs.
-  // Unparameterized class with two nested single-parameter function scopes.
-  var env1 = rti.testingUniverseEval(universe, 'Foo<bool><int>');
-  var env2 = rti.testingUniverseEval(universe, 'Foo;<bool><int>');
-
-  var rti1 = rti.testingEnvironmentEval(universe, env1, 'AAA<0,1,2>');
-  var rti2 = rti.testingEnvironmentEval(universe, env2, 'AAA<0,1,2>');
-  checkToString('AAA<Foo<bool>, int, bool>', rti1);
-  checkToString('AAA<Foo, bool, int>', rti2);
-}
-
-test3() {
-  var universe = rti.testingCreateUniverse();
-  var env = rti.testingUniverseEval(universe, 'CCC<aaa,bbb><ccc,@>');
-  var rti1 = rti.testingEnvironmentEval(universe, env, 'AAA<0,1,2,3,4>');
-  checkToString('AAA<CCC<aaa, bbb>, ccc, dynamic, aaa, bbb>', rti1);
-}
-
-test4() {
-  var universe = rti.testingCreateUniverse();
-  var env = rti.testingUniverseEval(universe, '@<aaa,bbb>');
-  var rti1 = rti.testingEnvironmentEval(universe, env, 'AAA<0,1,2>');
-  checkToString('AAA<dynamic, aaa, bbb>', rti1);
-}
-
-test5() {
-  var universe = rti.testingCreateUniverse();
-  var env1 = rti.testingUniverseEval(universe, '@<aaa><bbb><ccc>');
-  var env2 = rti.testingUniverseEval(universe, '@;<aaa><bbb><ccc>');
-  var rti1 = rti.testingEnvironmentEval(universe, env1, 'AAA<0,1,2,3>');
-  var rti2 = rti.testingEnvironmentEval(universe, env2, 'AAA<0,1,2,3>');
-  checkToString('AAA<dynamic, aaa, bbb, ccc>', rti1);
-  checkRtiIdentical(rti1, rti2);
-}
-
-main() {
-  test1();
-  test2();
-  test3();
-  test4();
-  test5();
-}
diff --git a/tests/web_2/internal/rti/canonical_recipe_test.dart b/tests/web_2/internal/rti/canonical_recipe_test.dart
deleted file mode 100644
index 3be64270a31..00000000000
--- a/tests/web_2/internal/rti/canonical_recipe_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'dart:_rti' as rti;
-import "package:expect/expect.dart";
-
-final universe = rti.testingCreateUniverse();
-
-main() {
-  test('@', '@');
-  test('~', '~');
-  test('0&', '0&');
-  test('1&', '1&');
-  test('int', 'int');
-  test('int/', 'int/');
-  test('List<int>', 'List<int>');
-  test('Foo<bool,Bar<int,double>>', 'Foo<bool,Bar<int,double>>');
-  test('@;<int,bool>', '@<int><bool>');
-}
-
-String canonicalize(String recipe) {
-  var t = rti.testingUniverseEval(universe, recipe);
-  return rti.testingCanonicalRecipe(t);
-}
-
-void test(String expected, String recipe) =>
-    Expect.equals(expected, canonicalize(recipe));
diff --git a/tests/web_2/internal/rti/class_environment_test.dart b/tests/web_2/internal/rti/class_environment_test.dart
deleted file mode 100644
index aa1079bc16d..00000000000
--- a/tests/web_2/internal/rti/class_environment_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'dart:_rti' as rti;
-import "package:expect/expect.dart";
-
-void checkRtiIdentical(Object rti1, Object rti2) {
-  var format = rti.testingRtiToString;
-  Expect.isTrue(
-      identical(rti1, rti2), 'identical(${format(rti1)}, ${format(rti2)}');
-}
-
-void checkToString(String expected, Object rti1) {
-  String result = rti.testingRtiToString(rti1);
-  if (expected == result) return;
-  Expect.equals(expected, result.replaceAll('minified:', ''));
-}
-
-testInterface1() {
-  var universe = rti.testingCreateUniverse();
-
-  var env = rti.testingUniverseEval(universe, 'Foo<int>');
-  var rti1 = rti.testingUniverseEval(universe, 'int');
-  var rti2 = rti.testingEnvironmentEval(universe, env, '1');
-
-  checkToString('int', rti1);
-  checkToString('int', rti2);
-  checkRtiIdentical(rti1, rti2);
-}
-
-testInterface2() {
-  var universe = rti.testingCreateUniverse();
-
-  var env = rti.testingUniverseEval(universe, 'Foo<int,List<int>>');
-  var rti1 = rti.testingUniverseEval(universe, 'List<int>');
-  var rti2 = rti.testingEnvironmentEval(universe, env, '2');
-  var rti3 = rti.testingEnvironmentEval(universe, env, 'List<1>');
-
-  checkToString('List<int>', rti1);
-  checkToString('List<int>', rti2);
-  checkToString('List<int>', rti3);
-  checkRtiIdentical(rti1, rti2);
-  checkRtiIdentical(rti1, rti3);
-}
-
-main() {
-  testInterface1();
-  testInterface2();
-}
diff --git a/tests/web_2/internal/rti/constant_type_test.dart b/tests/web_2/internal/rti/constant_type_test.dart
deleted file mode 100644
index fa2d560c044..00000000000
--- a/tests/web_2/internal/rti/constant_type_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-//
-// dart2jsOptions=--experiment-new-rti --no-minify
-
-import "package:expect/expect.dart";
-
-class Thingy {
-  const Thingy();
-}
-
-class Generic<AA> {
-  const Generic();
-}
-
-@pragma('dart2js:noInline')
-void check<T>(o) {
-  Expect.isTrue(o is T);
-  Expect.isFalse(o is! T);
-}
-
-main() {
-  check<Thingy>(const Thingy());
-
-  check<Generic<int>>(const Generic<int>());
-
-  check<Generic<dynamic>>(const Generic<dynamic>());
-  check<Generic<Object>>(const Generic<Object>());
-  check<Generic<Object>>(const Generic<dynamic>());
-  check<Generic<dynamic>>(const Generic<Object>());
-
-  check<List<int>>(const [1]);
-  check<List<String>>(const ['one']);
-
-  check<Set<int>>(const {1, 2, 3});
-  check<Map<String, int>>(const {'one': 1});
-
-  check<Symbol>(#hello);
-}
diff --git a/tests/web_2/internal/rti/js_interop_subtype_test.dart b/tests/web_2/internal/rti/js_interop_subtype_test.dart
deleted file mode 100644
index ffcb31c7c54..00000000000
--- a/tests/web_2/internal/rti/js_interop_subtype_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'dart:_interceptors';
-
-import 'package:expect/expect.dart';
-import 'package:js/js.dart';
-
-@JS()
-class JSClass {}
-
-@JS()
-external void eval(String code);
-
-void main() {
-  eval(r'''
-      function JSClass() {}
-      ''');
-  Expect.type<LegacyJavaScriptObject>(JSClass());
-  Expect.type<List<LegacyJavaScriptObject>>(<JSClass>[]);
-}
diff --git a/tests/web_2/internal/rti/recipe_syntax_test.dart b/tests/web_2/internal/rti/recipe_syntax_test.dart
deleted file mode 100644
index bb7979d5405..00000000000
--- a/tests/web_2/internal/rti/recipe_syntax_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'dart:_recipe_syntax';
-
-main() {
-  Recipe.testEquivalence();
-}
diff --git a/tests/web_2/internal/rti/required_named_parameters_test.dart b/tests/web_2/internal/rti/required_named_parameters_test.dart
deleted file mode 100644
index eee8630b056..00000000000
--- a/tests/web_2/internal/rti/required_named_parameters_test.dart
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Requirements=nnbd
-
-import 'dart:_rti' as rti;
-import 'dart:_foreign_helper' show JS;
-import "package:expect/expect.dart";
-
-const typeRulesJson = r'''
-{
-  "B": {"A": []},
-  "C": {"B": []}
-}
-''';
-final typeRules = JS('=Object', 'JSON.parse(#)', typeRulesJson);
-
-main() {
-  var universe = rti.testingCreateUniverse();
-  rti.testingAddRules(universe, typeRules);
-
-  // Recipe is properly parsed
-  var rti1 = rti.testingUniverseEval(universe, "@(B,{a!B,b:B,c!B})");
-
-  // Subtype must be contravariant in its named parameter types
-  var rti2 = rti.testingUniverseEval(universe, "@(B,{a!A,b:B,c!B})");
-  Expect.isTrue(rti.testingIsSubtype(universe, rti2, rti1));
-  rti2 = rti.testingUniverseEval(universe, "@(B,{a!B,b:A,c!B})");
-  Expect.isTrue(rti.testingIsSubtype(universe, rti2, rti1));
-  rti2 = rti.testingUniverseEval(universe, "@(B,{a!C,b:B,c!B})");
-  Expect.isFalse(rti.testingIsSubtype(universe, rti2, rti1));
-  rti2 = rti.testingUniverseEval(universe, "@(B,{a!B,b:C,c!B})");
-  Expect.isFalse(rti.testingIsSubtype(universe, rti2, rti1));
-
-  // Subtype may not omit optional named parameters
-  rti2 = rti.testingUniverseEval(universe, "@(A,{a!A,c!A})");
-  Expect.isFalse(rti.testingIsSubtype(universe, rti2, rti1));
-
-  // Subtype may not omit required named parameters
-  rti2 = rti.testingUniverseEval(universe, "@(A,{a!A,b:A})");
-  Expect.isFalse(rti.testingIsSubtype(universe, rti2, rti1));
-
-  // Subtype may contain additional named optional parameters
-  rti2 = rti.testingUniverseEval(universe, "@(A,{a!A,b:A,c!A,d:A})");
-  Expect.isTrue(rti.testingIsSubtype(universe, rti2, rti1));
-
-  // Subtype may redeclare required parameters as optional.
-  rti2 = rti.testingUniverseEval(universe, "@(A,{a:A,b:A,c:A})");
-  Expect.isTrue(rti.testingIsSubtype(universe, rti2, rti1));
-
-  // Subtype may not redeclare optional parameters as required
-  rti2 = rti.testingUniverseEval(universe, "@(A,{a!A,b!A,c!A})");
-  Expect.equals(
-      hasUnsoundNullSafety, rti.testingIsSubtype(universe, rti2, rti1));
-
-  // Subtype may not declare new required named parameters
-  rti2 = rti.testingUniverseEval(universe, "@(A,{a!A,b:A,c!A,d!A})");
-  Expect.equals(
-      hasUnsoundNullSafety, rti.testingIsSubtype(universe, rti2, rti1));
-
-  // Rti.toString() appears as expected
-  Expect.equals('(B, {required B a, B b, required B c}) => dynamic',
-      rti.testingRtiToString(rti1));
-
-  // Rti debug string properly annotates all required parameters
-  Expect.equals(
-      2, 'required'.allMatches(rti.testingRtiToDebugString(rti1)).length);
-}
diff --git a/tests/web_2/internal/rti/runtime_type_1_test.dart b/tests/web_2/internal/rti/runtime_type_1_test.dart
deleted file mode 100644
index acf914b2701..00000000000
--- a/tests/web_2/internal/rti/runtime_type_1_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-//
-// dart2jsOptions=--experiment-new-rti --no-minify
-
-import 'dart:_rti' as rti;
-import "package:expect/expect.dart";
-
-class Thingy {}
-
-class GenericThingy<A, B> {
-  toString() => 'GenericThingy<$A, $B>';
-}
-
-main() {
-  var rti1 = rti.instanceType(1);
-  Expect.equals('JSInt', rti.testingRtiToString(rti1));
-
-  var rti2 = rti.instanceType('Hello');
-  Expect.equals('JSString', rti.testingRtiToString(rti2));
-
-  var rti3 = rti.instanceType(Thingy());
-  Expect.equals('Thingy', rti.testingRtiToString(rti3));
-
-  var rti4 = rti.instanceType(GenericThingy<String, int>());
-  Expect.equals('GenericThingy<String, int>', rti.testingRtiToString(rti4));
-}
diff --git a/tests/web_2/internal/rti/runtime_type_2_test.dart b/tests/web_2/internal/rti/runtime_type_2_test.dart
deleted file mode 100644
index 9a3511bbad6..00000000000
--- a/tests/web_2/internal/rti/runtime_type_2_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-//
-// dart2jsOptions=--experiment-new-rti --no-minify
-
-import "package:expect/expect.dart";
-
-@pragma('dart2js:noInline')
-Type grab<T>() => T;
-
-@pragma('dart2js:noInline')
-Type grabList<T>() => grab<List<T>>();
-
-main() {
-  Expect.equals('int', grab<int>().toString());
-
-  Expect.identical(int, grab<int>());
-  Expect.identical(dynamic, grab<dynamic>());
-  Expect.identical(Object, grab<Object>());
-  Expect.identical(Null, grab<Null>());
-
-  Expect.equals('List<int>', grabList<int>().toString());
-  Expect.equals('List<Null>', grabList<Null>().toString());
-
-  Expect.equals('List<dynamic>', (List).toString());
-
-  Expect.equals('dynamic', (dynamic).toString());
-  Expect.equals('Object', (Object).toString());
-  Expect.equals('Null', (Null).toString());
-
-  Expect.equals(List, grabList<dynamic>());
-}
diff --git a/tests/web_2/internal/rti/runtime_type_3_test.dart b/tests/web_2/internal/rti/runtime_type_3_test.dart
deleted file mode 100644
index 1423ff47cf0..00000000000
--- a/tests/web_2/internal/rti/runtime_type_3_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-//
-// dart2jsOptions=--experiment-new-rti --no-minify
-
-import "package:expect/expect.dart";
-import "dart:_foreign_helper" show JS;
-
-main() {
-  Expect.equals('JSArray<int>', <int>[].runtimeType.toString());
-
-  // TODO(35084): An 'any' type would make JS-interop easier to use.
-  Expect.equals('JSArray<dynamic>', JS('', '[]').runtimeType.toString());
-}
diff --git a/tests/web_2/internal/rti/simple_2_test.dart b/tests/web_2/internal/rti/simple_2_test.dart
deleted file mode 100644
index 1ea3c71aac9..00000000000
--- a/tests/web_2/internal/rti/simple_2_test.dart
+++ /dev/null
@@ -1,130 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'dart:_rti' as rti;
-import "package:expect/expect.dart";
-
-void checkToString(String expected, Object rti1) {
-  String result = rti.testingRtiToString(rti1);
-  if (expected == result) return;
-  Expect.equals(expected, result.replaceAll('minified:', ''));
-}
-
-testDynamic() {
-  var universe = rti.testingCreateUniverse();
-
-  var rti1 = rti.testingUniverseEval(universe, '@');
-  var rti2 = rti.testingUniverseEval(universe, ',,@,,');
-
-  Expect.isTrue(identical(rti1, rti2), 'dynamic should be identical');
-  Expect.isFalse(rti1 is String);
-  checkToString('dynamic', rti1);
-}
-
-testVoid() {
-  var universe = rti.testingCreateUniverse();
-
-  var rti1 = rti.testingUniverseEval(universe, '~');
-  var rti2 = rti.testingUniverseEval(universe, ',,~,,');
-
-  Expect.isTrue(identical(rti1, rti2), 'void should be identical');
-  Expect.isFalse(rti1 is String);
-  checkToString('void', rti1);
-}
-
-testNever() {
-  var universe = rti.testingCreateUniverse();
-
-  var rti1 = rti.testingUniverseEval(universe, '0&');
-  var rti2 = rti.testingUniverseEval(universe, '0&');
-
-  Expect.isTrue(identical(rti1, rti2), 'Never should be identical');
-  Expect.isFalse(rti1 is String);
-  checkToString('Never', rti1);
-}
-
-testAny() {
-  var universe = rti.testingCreateUniverse();
-
-  var rti1 = rti.testingUniverseEval(universe, '1&');
-  var rti2 = rti.testingUniverseEval(universe, '1&');
-
-  Expect.isTrue(identical(rti1, rti2), "'any' should be identical");
-  Expect.isFalse(rti1 is String);
-  checkToString('any', rti1);
-}
-
-testTerminal() {
-  var universe = rti.testingCreateUniverse();
-
-  var rti1 = rti.testingUniverseEval(universe, '@');
-  var rti2 = rti.testingUniverseEval(universe, '~');
-  var rti3 = rti.testingUniverseEval(universe, '0&');
-  var rti4 = rti.testingUniverseEval(universe, '1&');
-
-  Expect.isFalse(identical(rti1, rti2));
-  Expect.isFalse(identical(rti1, rti3));
-  Expect.isFalse(identical(rti1, rti4));
-  Expect.isFalse(identical(rti2, rti3));
-  Expect.isFalse(identical(rti2, rti4));
-  Expect.isFalse(identical(rti3, rti4));
-}
-
-testInterface1() {
-  var universe = rti.testingCreateUniverse();
-
-  var rti1 = rti.testingUniverseEval(universe, 'int');
-  var rti2 = rti.testingUniverseEval(universe, ',,int,,');
-
-  Expect.isTrue(identical(rti1, rti2));
-  Expect.isFalse(rti1 is String);
-  checkToString('int', rti1);
-}
-
-testInterface2() {
-  var universe = rti.testingCreateUniverse();
-
-  var rti1 = rti.testingUniverseEval(universe, 'Foo<int,bool>');
-  var rti2 = rti.testingUniverseEval(universe, 'Foo<int,bool>');
-
-  Expect.isTrue(identical(rti1, rti2));
-  Expect.isFalse(rti1 is String);
-  checkToString('Foo<int, bool>', rti1);
-}
-
-testInterface3() {
-  var universe = rti.testingCreateUniverse();
-
-  var rti1 = rti.testingUniverseEval(universe, 'Foo<Bar<int>,Bar<bool>>');
-  var rti2 = rti.testingUniverseEval(universe, 'Foo<Bar<int>,Bar<bool>>');
-
-  Expect.isTrue(identical(rti1, rti2));
-  Expect.isFalse(rti1 is String);
-  checkToString('Foo<Bar<int>, Bar<bool>>', rti1);
-}
-
-testInterface4() {
-  var universe = rti.testingCreateUniverse();
-
-  var rti1 = rti.testingUniverseEval(universe, 'Foo<Foo<Foo<Foo<int>>>>');
-  var rti2 = rti.testingUniverseEval(universe, 'Foo<Foo<Foo<Foo<int>>>>');
-
-  Expect.isTrue(identical(rti1, rti2));
-  Expect.isFalse(rti1 is String);
-  checkToString('Foo<Foo<Foo<Foo<int>>>>', rti1);
-}
-
-main() {
-  testDynamic();
-  testVoid();
-  testNever();
-  testAny();
-  testTerminal();
-  testInterface1();
-  testInterface2();
-  testInterface3();
-  testInterface4();
-}
diff --git a/tests/web_2/internal/rti/simple_is_function_type2_test.dart b/tests/web_2/internal/rti/simple_is_function_type2_test.dart
deleted file mode 100644
index 44603a089a7..00000000000
--- a/tests/web_2/internal/rti/simple_is_function_type2_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-//
-// dart2jsOptions=--experiment-new-rti
-
-import "package:expect/expect.dart";
-
-int fnInt2Int(int x) => x;
-int fnIntOptInt2Int(int x, [int y = 0]) => x + y;
-
-make1<A, B>(A a) {
-  return (B b) => a;
-}
-
-make2<A, B>(A a) {
-  A foo(B b) => a;
-  return foo;
-}
-
-class C<A> {
-  final A a;
-  C(this.a);
-  make<B>() => (B b) => a;
-  make2<B>() => (B b) => 'x';
-}
-
-main() {
-  Expect.isTrue(make1<int, int>(1) is int Function(int));
-  Expect.isTrue(make1<int, int>(1) is Object Function(int));
-  Expect.isTrue(make1<int, int>(1) is! String Function(int));
-  Expect.isTrue(make1<int, int>(1) is! int Function(String));
-
-  Expect.isTrue(make2<int, int>(1) is int Function(int));
-  Expect.isTrue(make2<int, int>(1) is Object Function(int));
-  Expect.isTrue(make2<int, int>(1) is! String Function(int));
-  Expect.isTrue(make2<int, int>(1) is! int Function(String));
-
-  Expect.isTrue(C<int>(1).make<String>() is int Function(String));
-  Expect.isTrue(C<int>(1).make<String>() is Object Function(String));
-  Expect.isTrue(C<int>(1).make<String>() is! String Function(int));
-
-  Expect.isTrue(C<int>(1).make2<int>() is String Function(int));
-  Expect.isTrue(C<int>(1).make2<int>() is Object Function(int));
-  Expect.isTrue(C<int>(1).make2<int>() is! int Function(String));
-  Expect.isTrue(C<int>(1).make2<int>() is! int Function(int));
-  Expect.isTrue(C<int>(1).make2<String>() is String Function(String));
-  Expect.isTrue(C<int>(1).make2<String>() is Object Function(String));
-  Expect.isTrue(C<int>(1).make2<String>() is! int Function(String));
-  Expect.isTrue(C<int>(1).make2<String>() is! String Function(int));
-}
diff --git a/tests/web_2/internal/rti/simple_is_function_type3_test.dart b/tests/web_2/internal/rti/simple_is_function_type3_test.dart
deleted file mode 100644
index 747d5f88a7e..00000000000
--- a/tests/web_2/internal/rti/simple_is_function_type3_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-//
-// dart2jsOptions=--experiment-new-rti
-
-// Test that some closures are 'is Function'.
-
-import "package:expect/expect.dart";
-
-@pragma('dart2js:noInline')
-confuse(x) => x;
-
-main() {
-  // static tear-off.
-  Expect.isTrue(confuse(main) is Function);
-
-  // instance tear-off.
-  Expect.isTrue(confuse([].add) is Function);
-
-  // function expression.
-  Expect.isTrue(confuse(() => 1) is Function);
-
-  // local function.
-  int add1(int x) => x;
-
-  Expect.isTrue(confuse(add1) is Function);
-
-  Expect.isFalse(confuse(null) is Function);
-  Expect.isFalse(confuse(1) is Function);
-}
diff --git a/tests/web_2/internal/rti/simple_is_function_type_test.dart b/tests/web_2/internal/rti/simple_is_function_type_test.dart
deleted file mode 100644
index e63e4b5e602..00000000000
--- a/tests/web_2/internal/rti/simple_is_function_type_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-//
-// dart2jsOptions=--experiment-new-rti
-
-import 'dart:_rti' as rti;
-import "package:expect/expect.dart";
-
-int fnInt2Int(int x) => x;
-int fnIntOptInt2Int(int x, [int y = 0]) => x + y;
-
-main() {
-  Expect.isTrue(fnInt2Int is int Function(int));
-
-  Expect.isTrue(fnInt2Int is void Function(int));
-  Expect.isFalse(fnInt2Int is int Function());
-
-  Expect.isTrue(fnIntOptInt2Int is int Function(int, [int]));
-
-  Expect.isTrue(fnIntOptInt2Int is int Function(int, int));
-  Expect.isTrue(fnIntOptInt2Int is int Function(int));
-}
diff --git a/tests/web_2/internal/rti/simple_is_test.dart b/tests/web_2/internal/rti/simple_is_test.dart
deleted file mode 100644
index 2d27065e763..00000000000
--- a/tests/web_2/internal/rti/simple_is_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-//
-// dart2jsOptions=--experiment-new-rti --no-minify
-
-import 'dart:_rti' as rti;
-import "package:expect/expect.dart";
-
-class Thingy {}
-
-class Generic<AA> {
-  checkMethod(o) => o is AA;
-}
-
-@pragma('dart2js:noInline')
-void check<T>(o) {
-  Expect.isTrue(o is T);
-  Expect.isFalse(o is! T);
-}
-
-main() {
-  check<Thingy>(Thingy());
-
-  check<Generic<int>>(Generic<int>());
-
-  check<Generic<dynamic>>(Generic<dynamic>());
-  check<Generic<Object>>(Generic<Object>());
-  check<Generic<Object>>(Generic<dynamic>());
-  check<Generic<dynamic>>(Generic<Object>());
-
-  Expect.isTrue(Generic<Thingy>().checkMethod(Thingy()));
-  Expect.isTrue(Generic<Object>().checkMethod(Object()));
-  Expect.isTrue(Generic<Object>().checkMethod(Thingy()));
-  Expect.isFalse(Generic<Thingy>().checkMethod(Object()));
-  Expect.isTrue(Generic<dynamic>().checkMethod(Object()));
-
-  Expect.isFalse(Generic<Thingy>().checkMethod(123));
-  Expect.isFalse(Generic<Thingy>().checkMethod(Object()));
-}
diff --git a/tests/web_2/internal/rti/simple_test.dart b/tests/web_2/internal/rti/simple_test.dart
deleted file mode 100644
index 4d9c9561ab2..00000000000
--- a/tests/web_2/internal/rti/simple_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'dart:_rti' as rti;
-import "package:expect/expect.dart";
-
-main() {
-  var universe = rti.testingCreateUniverse();
-
-  // TODO(sra): Add call: rti.testingAddRules(universe, ???);
-
-  var dynamicRti1 = rti.testingUniverseEval(universe, '@');
-  var dynamicRti2 = rti.testingUniverseEval(universe, '@');
-
-  Expect.isTrue(identical(dynamicRti1, dynamicRti2));
-  Expect.isFalse(dynamicRti1 is String);
-  Expect.equals('dynamic', rti.testingRtiToString(dynamicRti1));
-}
diff --git a/tests/web_2/internal/rti/simple_type_bound_test.dart b/tests/web_2/internal/rti/simple_type_bound_test.dart
deleted file mode 100644
index cc0a860f06e..00000000000
--- a/tests/web_2/internal/rti/simple_type_bound_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-//
-// dart2jsOptions=--experiment-new-rti
-
-import "package:expect/expect.dart";
-
-@pragma('dart2js:noInline')
-dynamic makeFunction(x) {
-  // Return a local function since that does not require any tear-off code.
-  dynamic foo<U extends V, V extends num>() {
-    // Returning x ensures this is a local function and will not be optimized to
-    // a static tear-off.
-    return x;
-  }
-
-  return foo;
-}
-
-@pragma('dart2js:noInline')
-void test(dynamic action, bool expectThrows) {
-  // Don't use Expect.throws because it is hard to call without implicit type
-  // checks.
-  try {
-    // There is no type check here, just a dynamic 'call' selector.
-    action();
-  } catch (e, st) {
-    if (expectThrows) return;
-    Expect.fail('Should throw');
-    return;
-  }
-  if (expectThrows) {
-    Expect.fail('Did not throw');
-  }
-}
-
-main() {
-  dynamic f = makeFunction(123);
-
-  test(() => f<String, int>(), true);
-  test(() => f<num, num>(), false);
-}
diff --git a/tests/web_2/internal/rti/subtype_test.dart b/tests/web_2/internal/rti/subtype_test.dart
deleted file mode 100644
index 5cdb5ce14ae..00000000000
--- a/tests/web_2/internal/rti/subtype_test.dart
+++ /dev/null
@@ -1,156 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'dart:_foreign_helper' show JS, JS_GET_NAME, TYPE_REF;
-import 'dart:_js_shared_embedded_names' show JsGetName;
-import 'dart:_rti' as rti;
-
-import 'subtype_utils.dart';
-
-final String objectName = JS_GET_NAME(JsGetName.OBJECT_CLASS_TYPE_NAME);
-final String futureName = JS_GET_NAME(JsGetName.FUTURE_CLASS_TYPE_NAME);
-final String nullName = JS_GET_NAME(JsGetName.NULL_CLASS_TYPE_NAME);
-
-const typeRulesJson = r'''
-{
-  "int": {"num": []},
-  "double": {"num": []},
-  "List": {"Iterable": ["1"]},
-  "CodeUnits": {
-    "List": ["int"],
-    "Iterable": ["int"]
-  }
-}
-''';
-final typeRules = JS('=Object', 'JSON.parse(#)', typeRulesJson);
-
-main() {
-  rti.testingAddRules(universe, typeRules);
-  rti.testingUniverseEvalOverride(universe, objectName, TYPE_REF<Object>());
-  rti.testingUniverseEvalOverride(universe, nullName, TYPE_REF<Null>());
-  runTests();
-  runTests(); // Ensure caching didn't change anything.
-}
-
-void runTests() {
-  testInterfaces();
-  testTopTypes();
-  testNull();
-  testBottom();
-  testFutureOr();
-  testFunctions();
-  testGenericFunctions();
-}
-
-void testInterfaces() {
-  strictSubtype('List<CodeUnits>', 'Iterable<List<int>>');
-  strictSubtype('CodeUnits', 'Iterable<num>');
-  strictSubtype('Iterable<int>', 'Iterable<num>');
-  unrelated('int', 'CodeUnits');
-  equivalent('double', 'double');
-  equivalent('List<int>', 'List<int>');
-}
-
-void testTopTypes() {
-  strictSubtype('List<int>', objectName);
-  equivalent(objectName, objectName);
-  equivalent('@', '@');
-  equivalent('~', '~');
-  equivalent('1&', '1&');
-  equivalent(objectName, '@');
-  equivalent(objectName, '~');
-  equivalent(objectName, '1&');
-  equivalent('@', '~');
-  equivalent('@', '1&');
-  equivalent('~', '1&');
-  equivalent('List<$objectName>', 'List<@>');
-  equivalent('List<$objectName>', 'List<~>');
-  equivalent('List<$objectName>', 'List<1&>');
-  equivalent('List<@>', 'List<~>');
-  equivalent('List<@>', 'List<1&>');
-  equivalent('List<~>', 'List<1&>');
-}
-
-void testNull() {
-  strictSubtype(nullName, 'int');
-  strictSubtype(nullName, 'Iterable<CodeUnits>');
-  strictSubtype(nullName, objectName);
-  equivalent(nullName, nullName);
-}
-
-void testBottom() {
-  String never = '0&';
-  equivalent(nullName, never); // This test is run with legacy subtyping
-}
-
-void testFutureOr() {
-  strictSubtype('$futureName<int>', '$futureName<num>');
-  strictSubtype('int', 'int/');
-  strictSubtype('$futureName<int>', 'int/');
-  strictSubtype('int/', 'num/');
-  strictSubtype('int', 'num/');
-  strictSubtype('$futureName<int>', 'num/');
-  equivalent('@/', '~/');
-}
-
-void testFunctions() {
-  equivalent('~()', '~()');
-  equivalent('@()', '~()');
-  unrelated('int()', 'int(int)');
-  strictSubtype('int()', 'num()');
-  strictSubtype('~(num)', '~(int)');
-  strictSubtype('int(Iterable<num>)', 'num(CodeUnits)');
-
-  equivalent('~(int,@,num)', '~(int,@,num)');
-  equivalent('@(int,~,num)', '~(int,@,num)');
-  unrelated('int(int,double)', 'void(String)');
-  unrelated('int(int,double)', 'int(int)');
-  unrelated('int(int,double)', 'int(double)');
-  unrelated('int(int,double)', 'int(int,int)');
-  unrelated('int(int,double)', 'int(String,double)');
-  strictSubtype('int(int,double)', '~(int,double)');
-  strictSubtype('int(int,double)', 'num(int,double)');
-  strictSubtype('int(num,double)', 'int(int,double)');
-  strictSubtype('int(int,num)', 'int(int,double)');
-  strictSubtype('int(num,num)', 'int(int,double)');
-  strictSubtype('double(num,Iterable<num>,int/)', 'num(int,CodeUnits,int)');
-
-  equivalent('~([@])', '~([@])');
-  equivalent('~(int,[double])', '~(int,[double])');
-  equivalent('~(int,[double,CodeUnits])', '~(int,[double,CodeUnits])');
-  unrelated('~([int])', '~([double])');
-  unrelated('~(int,[int])', '~(int,[double])');
-  unrelated('~(int,[CodeUnits,int])', '~(int,[CodeUnits,double])');
-  strictSubtype('~([num])', '~([int])');
-  strictSubtype('~([num,num])', '~([int,double])');
-  strictSubtype('~([int,double])', '~(int,[double])');
-  strictSubtype('~([int,double,CodeUnits])', '~([int,double])');
-  strictSubtype('~([int,double,CodeUnits])', '~(int,[double])');
-
-  equivalent('~({foo:@})', '~({foo:@})');
-  unrelated('~({foo:@})', '~({bar:@})');
-  unrelated('~({foo:@,quux:@})', '~({bar:@,baz:@})');
-  unrelated('~(@,{foo:@})', '~(@,@)');
-  unrelated('~(@,{foo:@})', '~({bar:@,foo:@})');
-  equivalent('~({bar:int,foo:double})', '~({bar:int,foo:double})');
-  strictSubtype('~({bar:int,foo:double})', '~({bar:int})');
-  strictSubtype('~({bar:int,foo:double})', '~({foo:double})');
-  strictSubtype('~({bar:num,baz:num,foo:num})', '~({baz:int,foo:double})');
-}
-
-void testGenericFunctions() {
-  equivalent('~()<int>', '~()<int>');
-  unrelated('~()<int>', '~()<double>');
-  unrelated('~()<int>', '~()<int,int>');
-  unrelated('~()<int>', '~()<num>');
-  unrelated('~()<int,double>', '~()<double,int>');
-  strictSubtype('List<0^>()<int>', 'Iterable<0^>()<int>');
-  strictSubtype('~(Iterable<0^>)<int>', '~(List<0^>)<int>');
-
-  equivalent('~()<@>', '~()<~>');
-  equivalent('~()<List<@/>>', '~()<List<~/>>');
-  unrelated('~()<List<int/>>', '~()<List<num/>>');
-}
diff --git a/tests/web_2/internal/rti/subtype_utils.dart b/tests/web_2/internal/rti/subtype_utils.dart
deleted file mode 100644
index e520a86c43c..00000000000
--- a/tests/web_2/internal/rti/subtype_utils.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'dart:_rti' as rti;
-import "package:expect/expect.dart";
-
-final universe = rti.testingCreateUniverse();
-
-String reason(String s, String t) => "$s <: $t";
-
-void strictSubtype(String s, String t) {
-  var sRti = rti.testingUniverseEval(universe, s);
-  var tRti = rti.testingUniverseEval(universe, t);
-  Expect.isTrue(rti.testingIsSubtype(universe, sRti, tRti), reason(s, t));
-  Expect.isFalse(rti.testingIsSubtype(universe, tRti, sRti), reason(t, s));
-}
-
-void unrelated(String s, String t) {
-  var sRti = rti.testingUniverseEval(universe, s);
-  var tRti = rti.testingUniverseEval(universe, t);
-  Expect.isFalse(rti.testingIsSubtype(universe, sRti, tRti), reason(s, t));
-  Expect.isFalse(rti.testingIsSubtype(universe, tRti, sRti), reason(t, s));
-}
-
-void equivalent(String s, String t) {
-  var sRti = rti.testingUniverseEval(universe, s);
-  var tRti = rti.testingUniverseEval(universe, t);
-  Expect.isTrue(rti.testingIsSubtype(universe, sRti, tRti), reason(s, t));
-  Expect.isTrue(rti.testingIsSubtype(universe, tRti, sRti), reason(t, s));
-}
diff --git a/tests/web_2/internal/rti/variance_subtype_test.dart b/tests/web_2/internal/rti/variance_subtype_test.dart
deleted file mode 100644
index e0d3258c29f..00000000000
--- a/tests/web_2/internal/rti/variance_subtype_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// SharedOptions=--enable-experiment=variance
-
-import 'dart:_foreign_helper' show JS;
-import 'dart:_rti' as rti;
-
-import 'subtype_utils.dart';
-
-const typeRulesJson = r'''
-{
-  "int": {"num": []}
-}
-''';
-final typeRules = JS('=Object', 'JSON.parse(#)', typeRulesJson);
-
-const typeParameterVariancesJson = '''
-{
-  "Covariant": [${rti.Variance.covariant}],
-  "Contravariant": [${rti.Variance.contravariant}],
-  "Invariant": [${rti.Variance.invariant}],
-  "MultiVariant":[${rti.Variance.legacyCovariant}, ${rti.Variance.invariant},
-  ${rti.Variance.contravariant}, ${rti.Variance.covariant}]
-}
-''';
-final typeParameterVariances =
-    JS('=Object', 'JSON.parse(#)', typeParameterVariancesJson);
-
-main() {
-  rti.testingAddRules(universe, typeRules);
-  rti.testingAddTypeParameterVariances(universe, typeParameterVariances);
-  testInterfacesWithVariance();
-  testInterfacesWithVariance(); // Ensure caching didn't change anything.
-}
-
-void testInterfacesWithVariance() {
-  strictSubtype('LegacyCovariant<int>', 'LegacyCovariant<num>');
-  strictSubtype('Covariant<int>', 'Covariant<num>');
-  strictSubtype('Contravariant<num>', 'Contravariant<int>');
-  equivalent('Invariant<num>', 'Invariant<num>');
-  unrelated('Invariant<int>', 'Invariant<num>');
-  unrelated('Invariant<num>', 'Invariant<int>');
-  strictSubtype(
-      'MultiVariant<int,num,num,int>', 'MultiVariant<num,num,int,num>');
-}
diff --git a/tests/web_2/invalid_annotation_test.dart b/tests/web_2/invalid_annotation_test.dart
deleted file mode 100644
index 0e23538aa5a..00000000000
--- a/tests/web_2/invalid_annotation_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for http://dartbug.com/23893
-//
-// Because annotations are parsed lazily, dart2js used to crash when an
-// annotation had a syntax error.
-
-@Deprecated("m"
-,, //                               //# 01: compile-time error
-    )
-class A {}
-
-main() => new A();
diff --git a/tests/web_2/invoke_dynamic_test.dart b/tests/web_2/invoke_dynamic_test.dart
deleted file mode 100644
index 26616b2c053..00000000000
--- a/tests/web_2/invoke_dynamic_test.dart
+++ /dev/null
@@ -1,70 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {
-  foo() {
-    return 499;
-  }
-
-  bar(x) {
-    return x + 499;
-  }
-
-  baz() {
-    return 54;
-  }
-
-  titi() {
-    return 123;
-  }
-}
-
-class B {
-  foo() {
-    return 42;
-  }
-
-  bar(x) {
-    return x + 42;
-  }
-
-  toto() {
-    return foo() + 42;
-  }
-}
-
-class C extends A {
-  foo() {
-    return 99;
-  }
-
-  bar(x) {
-    return x + 99;
-  }
-}
-
-void main() {
-  var a = new A();
-  Expect.equals(499, a.foo());
-  Expect.equals(500, a.bar(1));
-  var b = new B();
-  Expect.equals(42, b.foo());
-  Expect.equals(43, b.bar(1));
-  var c = new C();
-  Expect.equals(99, c.foo());
-  Expect.equals(100, c.bar(1));
-
-  Expect.equals(54, a.baz());
-  Expect.equals(54, c.baz());
-
-  // We don't call a.titi. This means that the compiler needs to trigger the
-  // compilation of A.titi by going through the super-chain.
-  Expect.equals(123, c.titi());
-
-  Expect.equals(84, b.toto());
-}
diff --git a/tests/web_2/is_check_instanceof_test.dart b/tests/web_2/is_check_instanceof_test.dart
deleted file mode 100644
index dc44515f3c9..00000000000
--- a/tests/web_2/is_check_instanceof_test.dart
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-// It is sometimes possible to compile is-checks to 'instanceof', when the class
-// is not in an 'implements' clause or used as a mixin.
-
-// This test verifies is-checks work with simple classes that have various
-// degrees of instantiation.
-
-class INSTANTIATED {} // instantiated and used in many ways
-
-class DEFERRED {} // instantiated after first check
-
-class UNUSED {} // used only in is-check
-
-class REMOVED {} // allocated but optimized out of program
-
-class DEFERRED_AND_REMOVED {} // allocated after first check and removed
-
-class USED_AS_TYPE_PARAMETER {} // only used as a type parameter
-
-class USED_AS_TESTED_TYPE_PARAMETER {} // only used as a type parameter
-
-class Check<T> {
-  bool check(x) => x is T;
-}
-
-class Check2<T> {
-  bool check(x) => x is USED_AS_TYPE_PARAMETER;
-}
-
-void main() {
-  var things = new List<dynamic>.filled(3, null);
-  things.setRange(0, 3, [new INSTANTIATED(), 1, new Object()]);
-
-  var checkX = new Check<INSTANTIATED>();
-  var checkU1 = new Check<USED_AS_TESTED_TYPE_PARAMETER>();
-  var checkU2 = new Check<USED_AS_TYPE_PARAMETER>();
-
-  var removed = new REMOVED(); // This is optimized out.
-
-  // Tests that can be compiled to instanceof:
-  Expect.isTrue(things[0] is INSTANTIATED);
-  Expect.isFalse(things[1] is INSTANTIATED);
-  Expect.isFalse(things[1] is REMOVED);
-  Expect.isFalse(things[1] is DEFERRED_AND_REMOVED);
-  Expect.isFalse(things[1] is DEFERRED);
-  // Tests that might be optimized to false since there are no allocations:
-  Expect.isFalse(things[1] is UNUSED);
-  Expect.isFalse(things[1] is USED_AS_TYPE_PARAMETER);
-
-  Expect.isTrue(checkX.check(things[0]));
-  Expect.isFalse(checkX.check(things[1]));
-  Expect.isFalse(checkU1.check(things[1]));
-  Expect.isFalse(checkU2.check(things[1]));
-
-  var removed2 = new DEFERRED_AND_REMOVED(); // This is optimized out.
-
-  // First allocation of DEFERRED is after the above tests.
-  things.setRange(0, 3, [new INSTANTIATED(), 1, new DEFERRED()]);
-
-  // Tests that can be compiled to instanceof:
-  Expect.isTrue(things[0] is INSTANTIATED);
-  Expect.isFalse(things[1] is INSTANTIATED);
-  Expect.isFalse(things[1] is REMOVED);
-  Expect.isFalse(things[1] is DEFERRED_AND_REMOVED);
-  Expect.isFalse(things[1] is DEFERRED);
-  Expect.isTrue(things[2] is DEFERRED);
-  // Tests that might be optimized to false since there are no allocations:
-  Expect.isFalse(things[1] is UNUSED);
-  Expect.isFalse(things[1] is USED_AS_TYPE_PARAMETER);
-}
diff --git a/tests/web_2/is_operator_test.dart b/tests/web_2/is_operator_test.dart
deleted file mode 100644
index 8c4c7143664..00000000000
--- a/tests/web_2/is_operator_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B extends A {}
-
-main() {
-  var a = new A();
-  var b = new B();
-
-  Expect.isTrue(a is A);
-  Expect.isTrue(a is Object);
-  Expect.isTrue(!(a is B));
-
-  Expect.isTrue(b is A);
-  Expect.isTrue(b is Object);
-  Expect.isTrue(b is B);
-
-  Expect.equals("true", (a is A).toString());
-  Expect.equals("true", (a is Object).toString());
-  Expect.equals("false", (a is B).toString());
-
-  Expect.equals("true", (b is A).toString());
-  Expect.equals("true", (b is Object).toString());
-  Expect.equals("true", (b is B).toString());
-
-  var c = new A();
-  Expect.isTrue(c is Object);
-
-  c = new A();
-  Expect.equals("true", (c is Object).toString());
-}
diff --git a/tests/web_2/issue36562_test.dart b/tests/web_2/issue36562_test.dart
deleted file mode 100644
index eac7cb4a97a..00000000000
--- a/tests/web_2/issue36562_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-const int x = 0;
-
-const List<int> l = const [
-  1,
-  -x,
-];
-
-main() => print(l);
diff --git a/tests/web_2/js_array_index_error_test.dart b/tests/web_2/js_array_index_error_test.dart
deleted file mode 100644
index 689dc263f2f..00000000000
--- a/tests/web_2/js_array_index_error_test.dart
+++ /dev/null
@@ -1,328 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that optimized JSArray indexers generate the same error as dynamically
-// dispatched calls.
-
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-Error getError(action(), name, part) {
-  try {
-    action();
-  } catch (e) {
-    return e;
-  }
-  Expect.fail('must throw: $name: $part');
-}
-
-indexErrorContainsIndex() {
-  makeFault(i) => () => confuse([])[i];
-
-  var name = 'index error contains index';
-  var e1 = getError(makeFault(1234), name, 'small');
-  var e2 = getError(makeFault(1234000), name, 'medium');
-  var e3 = getError(makeFault(1234000000000), name, 'large');
-
-  Expect.equals('$e1', '$e2'.replaceAll('000', ''));
-  Expect.equals('$e1', '$e3'.replaceAll('000', ''));
-  Expect.equals('$e1'.length + 3, '$e2'.length);
-  Expect.equals('$e1'.length + 9, '$e3'.length);
-}
-
-compare(name, fault1(), fault2(), fault3()) {
-  var e1 = getError(fault1, name, 'fault1');
-  var e2 = getError(fault2, name, 'fault2');
-  var e3 = getError(fault3, name, 'fault3');
-
-  Expect.equals('$e1', '$e2', '$name: fault1 vs fault2');
-  Expect.equals('$e1', '$e3', '$name: fault1 vs fault3');
-}
-
-// These tests are a bit tedious and avoid common helpers with higher order
-// functions to keep the type inference for each test independent from the
-// others.
-//
-// The 'constant' tests have a constant index which might permit different
-// optimizations to a variable index.  e.g. the compiler might determine HUGE is
-// always out of range since the maximum JavaScript Array length is 2^32.
-//
-// The 'variable' forms take the index as an argument.
-
-const int HUGE = 1000000000000;
-
-constantIndexEmpty() {
-  // Single dynamic receiver indexing might go via one-shot interceptor that
-  // might have an accelerated path.
-  fault1() => confuse([])[0];
-
-  fault2() {
-    var a = [];
-    while (confuse(false)) a.add(1);
-    // Easily inferred type and open coded indexer.
-    return a[0];
-  }
-
-  fault3() {
-    var a = confuse([]);
-    // Multiple indexing might go via shared interceptor.
-    return [a[0], a[1], a[2]];
-  }
-
-  compare('constant index on empty list', fault1, fault2, fault3);
-}
-
-constantIndexHugeEmpty() {
-  // Single dynamic receiver indexing might go via one-shot interceptor that
-  // might have an accelerated path.
-  fault1() => confuse([])[HUGE];
-
-  fault2() {
-    var a = [];
-    while (confuse(false)) a.add(1);
-    return a[HUGE];
-  }
-
-  fault3() {
-    var a = confuse([]);
-    return [a[HUGE], a[1], a[2]];
-  }
-
-  compare(
-      'constant index on empty list with huge index', fault1, fault2, fault3);
-}
-
-constantIndexNonempty() {
-  // Single dynamic receiver indexing might go via one-shot interceptor that
-  // might have an accelerated path.
-  fault1() => confuse([1])[1];
-
-  fault2() {
-    var a = [1];
-    while (confuse(false)) a.add(1);
-    // Easily inferred type and open coded indexer.
-    return a[1];
-  }
-
-  fault3() {
-    var a = confuse([1]);
-    // Multiple indexing might go via shared interceptor.
-    return [a[1], a[2], a[3]];
-  }
-
-  compare('constant index on non-empty list', fault1, fault2, fault3);
-}
-
-constantIndexHugeNonempty() {
-  // Single dynamic receiver indexing might go via one-shot interceptor that
-  // might have an accelerated path.
-  fault1() => confuse([1])[HUGE];
-
-  fault2() {
-    var a = [1];
-    while (confuse(false)) a.add(1);
-    // Easily inferred type and open coded indexer.
-    return a[HUGE];
-  }
-
-  fault3() {
-    var a = confuse([1]);
-    // Multiple indexing might go via shared interceptor.
-    return [a[HUGE], a[1], a[2]];
-  }
-
-  compare('constant index on non-empty list with huge index', fault1, fault2,
-      fault3);
-}
-
-constantIndexSetEmpty() {
-  fault1() {
-    // Single dynamic receiver indexing might go via one-shot interceptor that
-    // might have an accelerated path.
-    confuse([])[0] = 0;
-  }
-
-  fault2() {
-    var a = [];
-    while (confuse(false)) a.add(1);
-    // Easily inferred type and open coded indexer.
-    a[0] = 0;
-    return a;
-  }
-
-  fault3() {
-    var a = confuse([]);
-    // Multiple indexing might go via shared interceptor.
-    a[0] = 0;
-    a[1] = 0;
-    a[2] = 0;
-    return a;
-  }
-
-  compare('constant index-set on empty list', fault1, fault2, fault3);
-}
-
-constantIndexSetNonempty() {
-  fault1() {
-    // Single dynamic receiver indexing might go via one-shot interceptor that
-    // might have an accelerated path.
-    confuse([1])[1] = 0;
-  }
-
-  fault2() {
-    var a = [1];
-    while (confuse(false)) a.add(1);
-    // Easily inferred type and open coded indexer.
-    a[1] = 0;
-    return a;
-  }
-
-  fault3() {
-    var a = confuse([1]);
-    // Multiple indexing might go via shared interceptor.
-    a[0] = 0;
-    a[1] = 0;
-    a[2] = 0;
-    return a;
-  }
-
-  compare('constant index-set on non-empty list', fault1, fault2, fault3);
-}
-
-variableIndexEmpty(index, qualifier) {
-  // Single dynamic receiver indexing might go via one-shot interceptor that
-  // might have an accelerated path.
-  fault1() => confuse([])[index];
-
-  fault2() {
-    var a = [];
-    while (confuse(false)) a.add(1);
-    // Easily inferred type and open coded indexer.
-    return a[index];
-  }
-
-  fault3() {
-    var a = confuse([]);
-    // Multiple indexing might go via shared interceptor.
-    return [a[index], a[1], a[2]];
-  }
-
-  compare('general index on empty list $qualifier', fault1, fault2, fault3);
-}
-
-variableIndexNonempty(index, qualifier) {
-  // Single dynamic receiver indexing might go via one-shot interceptor that
-  // might have an accelerated path.
-  fault1() => confuse([1])[index];
-
-  fault2() {
-    var a = [1];
-    while (confuse(false)) a.add(1);
-    // Easily inferred type and open coded indexer.
-    return a[index];
-  }
-
-  fault3() {
-    var a = confuse([1]);
-    // Multiple indexing might go via shared interceptor.
-    return [a[index], a[1], a[2]];
-  }
-
-  compare(
-      'variable index on non-empty list $qualifier', fault1, fault2, fault3);
-}
-
-variableIndexSetEmpty(index, qualifier) {
-  fault1() {
-    var a = confuse([]);
-    // Single dynamic receiver indexing might go via one-shot interceptor that
-    // might have an accelerated path.
-    a[index] = 1;
-    return a;
-  }
-
-  fault2() {
-    var a = [];
-    while (confuse(false)) a.add(1);
-    // Easily inferred type and open coded indexer.
-    a[index] = 1;
-    return a;
-  }
-
-  fault3() {
-    var a = confuse([]);
-    // Multiple indexing might go via shared interceptor.
-    a[index] = 1;
-    a[2] = 2;
-    a[3] = 3;
-    return a;
-  }
-
-  compare(
-      'variable index-set on empty list $qualifier', fault1, fault2, fault3);
-}
-
-variableIndexSetNonempty(index, qualifier) {
-  fault1() {
-    var a = confuse([1]);
-    // Single dynamic receiver indexing might go via one-shot interceptor that
-    // might have an accelerated path.
-    a[index] = 1;
-    return a;
-  }
-
-  fault2() {
-    var a = [1];
-    while (confuse(false)) a.add(1);
-    // Easily inferred type and open coded indexer.
-    a[index] = 1;
-    return a;
-  }
-
-  fault3() {
-    var a = confuse([1]);
-    // Multiple indexing might go via shared interceptor.
-    a[index] = 1;
-    a[2] = 2;
-    a[3] = 3;
-    return a;
-  }
-
-  compare('variable index-set on non-empty list $qualifier', fault1, fault2,
-      fault3);
-}
-
-main() {
-  indexErrorContainsIndex();
-
-  constantIndexEmpty();
-  constantIndexHugeEmpty();
-  constantIndexNonempty();
-  constantIndexHugeNonempty();
-  constantIndexSetEmpty();
-  constantIndexSetNonempty();
-
-  variableIndexEmpty(0, 'zero index');
-  variableIndexEmpty(10, 'small index');
-  variableIndexEmpty(-1, 'negative index');
-  variableIndexEmpty(HUGE, 'huge index');
-
-  variableIndexNonempty(10, 'small index');
-  variableIndexNonempty(-1, 'negative index');
-  variableIndexNonempty(HUGE, 'huge index');
-
-  variableIndexSetEmpty(0, 'zero index');
-  variableIndexSetEmpty(10, 'small index');
-  variableIndexSetEmpty(-1, 'negative index');
-  variableIndexSetEmpty(HUGE, 'huge index');
-
-  variableIndexSetNonempty(10, 'small index');
-  variableIndexSetNonempty(-1, 'negative index');
-  variableIndexSetNonempty(HUGE, 'huge index');
-}
diff --git a/tests/web_2/js_array_removeLast_error_test.dart b/tests/web_2/js_array_removeLast_error_test.dart
deleted file mode 100644
index 9ea4d8ee925..00000000000
--- a/tests/web_2/js_array_removeLast_error_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that optimized JSArray removeLast() calls generate the same error as
-// dynamically dispatched calls.
-
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-Error getError(action()) {
-  try {
-    action();
-    Expect.fail('must throw');
-  } catch (e) {
-    return e;
-  }
-}
-
-main() {
-  fault1() {
-    return confuse([]).removeLast();
-  }
-
-  fault2() {
-    var a = [];
-    while (confuse(false)) a.add(1);
-    // This one should be optimized since [a] is a growable JSArray.
-    return a.removeLast();
-  }
-
-  var e1 = getError(fault1);
-  var e2 = getError(fault2);
-
-  Expect.equals('$e1', '$e2');
-}
diff --git a/tests/web_2/js_array_sort_default_test.dart b/tests/web_2/js_array_sort_default_test.dart
deleted file mode 100644
index 94f2a4d7e5d..00000000000
--- a/tests/web_2/js_array_sort_default_test.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-/// Tests that the default comparable function in JSArray.sort has a valid
-/// strong-mode type.
-void main() {
-  new List<dynamic>.from(['1', '2']).sort();
-}
diff --git a/tests/web_2/js_interop_cast_test.dart b/tests/web_2/js_interop_cast_test.dart
deleted file mode 100644
index 7ce0d637e62..00000000000
--- a/tests/web_2/js_interop_cast_test.dart
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that we don't crash on computing js-interop classes when metadata
-// constants contain implicit casts.
-//
-// We need the class hierarchy to perform the evaluation the implicit casts but
-// we also change the class hierarchy when we discover that a class is a
-// js-interop class. By mixing (valid) constants that contain implicit casts
-// with the @JS annotations that define classes to be js-interop, triggering
-// the use of the class hierarchy before all js-interop classes have been
-// registered, this test causes dart2js to crash with an assertion failure.
-
-@Constant(4)
-@JS()
-@Constant(5)
-library test;
-
-import 'package:js/js.dart';
-
-@Constant(-1)
-method() {}
-
-@Constant(0)
-@JS()
-@anonymous
-@Constant(1)
-class ClassA {
-  external factory ClassA();
-
-  @Constant(2)
-  external method();
-}
-
-class Constant {
-  final int field;
-
-  const Constant(dynamic value) : field = value;
-}
-
-@Constant(0)
-@JS()
-@anonymous
-@Constant(1)
-class ClassB {
-  external factory ClassB();
-
-  @Constant(2)
-  external method();
-}
-
-class ClassC {
-  method() {}
-}
-
-main() {
-  method();
-  dynamic c = new ClassC();
-  c.method();
-  new ClassA();
-  new ClassB();
-}
diff --git a/tests/web_2/js_interop_implements_test.dart b/tests/web_2/js_interop_implements_test.dart
deleted file mode 100644
index 6c22db808c3..00000000000
--- a/tests/web_2/js_interop_implements_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that methods implemented (not extended) in js-interop classes are still
-// considered live.
-
-@JS()
-library anonymous_js_test;
-
-import 'package:js/js.dart';
-
-@JS()
-@anonymous
-abstract class A {
-  external factory A();
-  external String get a;
-  external set a(String a);
-}
-
-@JS()
-@anonymous
-abstract class B implements A {
-  external factory B();
-  external String get b;
-  external set b(String b);
-}
-
-void main() {
-  final b = B();
-  // This setter is missing if we don't assume the receiver could be an
-  // unknown but concrete implementation of A.
-  b.a = 'Hi';
-  b.b = 'Hello';
-  if (b.a != 'Hi') throw 'b.a';
-  if (b.b != 'Hello') throw 'b.b';
-}
diff --git a/tests/web_2/js_interop_no_elide_optional_arg_test.dart b/tests/web_2/js_interop_no_elide_optional_arg_test.dart
deleted file mode 100644
index aa43f70fba6..00000000000
--- a/tests/web_2/js_interop_no_elide_optional_arg_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-/// Test that optional arguments of js-interop factory constructors are not
-/// elided.
-/// This is a regression test for issue 35916
-@JS()
-library test;
-
-import "package:js/js.dart";
-import "package:expect/expect.dart";
-
-@JS()
-@anonymous
-class Margins {
-  external factory Margins(
-      {int top, int start, int end, int right, int bottom, int left});
-  external int get top;
-  external int get right;
-  external int get left;
-  external int get bottom;
-}
-
-main() {
-  var m = new Margins(bottom: 21, left: 88, right: 20, top: 24);
-  Expect.equals(m.top, 24);
-  Expect.equals(m.bottom, 21);
-  Expect.equals(m.left, 88);
-  Expect.equals(m.right, 20);
-}
diff --git a/tests/web_2/js_interop_optional_arg_test.dart b/tests/web_2/js_interop_optional_arg_test.dart
deleted file mode 100644
index 9547374a0cb..00000000000
--- a/tests/web_2/js_interop_optional_arg_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-/// Test that optional arguments of js-interop constructors are not passed
-/// explicitly when missing.
-///
-/// This is a regression test for issue 32697
-
-import "package:js/js.dart";
-import "package:expect/expect.dart";
-import "dart:js" as js;
-
-@JS('C')
-class C {
-  external C([a]);
-  external bool get isUndefined;
-}
-
-main() {
-  js.context.callMethod("eval", [
-    """
-  function C(a){
-    this.isUndefined = a === undefined;
-  };
-  """
-  ]);
-
-  Expect.isTrue(new C().isUndefined);
-}
diff --git a/tests/web_2/js_interop_test.dart b/tests/web_2/js_interop_test.dart
deleted file mode 100644
index 9de19d31eff..00000000000
--- a/tests/web_2/js_interop_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:js/js.dart";
-import "package:expect/expect.dart";
-import "dart:js" as js;
-
-@JS('aFoo.bar')
-external dynamic get jsBar;
-
-main() {
-  js.context.callMethod("eval", [
-    """
-  function Foo(){
-    this.bar = 'Foo.bar';
-  };
-  aFoo = new Foo();
-  """
-  ]);
-
-  Expect.equals('Foo.bar', jsBar);
-}
diff --git a/tests/web_2/js_trust_types_disallowed_test.dart b/tests/web_2/js_trust_types_disallowed_test.dart
deleted file mode 100644
index 13dd1c65d9a..00000000000
--- a/tests/web_2/js_trust_types_disallowed_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:js/js.dart';
-
-@JS()
-@staticInterop
-@trustTypes
-class Incorrect {}
-//    ^
-// [web] JS interop class 'Incorrect' has an `@trustTypes` annotation, but `@trustTypes` is only supported within the sdk.
diff --git a/tests/web_2/jsinterop_test.dart b/tests/web_2/jsinterop_test.dart
deleted file mode 100644
index bf3766c5a8e..00000000000
--- a/tests/web_2/jsinterop_test.dart
+++ /dev/null
@@ -1,274 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// TODO(johnniwinther): Share this test with ddc.
-
-// Test for positive and negative uses of js-interop declarations in a library
-// _with_ a @JS() annotation. This file is also used in
-// tests/compiler/dart2js/model/native_test.dart.
-
-@JS()
-library lib;
-
-import 'package:js/js.dart';
-
-var topLevelField;
-
-get topLevelGetter => null;
-
-set topLevelSetter(_) {}
-
-topLevelFunction() {}
-
-@JS('a') // JS_INTEROP_FIELD_NOT_SUPPORTED  //# 01: compile-time error
-var topLevelJsInteropField; //# 01: continued
-
-@JS('a') // JS_INTEROP_NON_EXTERNAL_MEMBER  //# 02: compile-time error
-get topLevelJsInteropGetter => null; //# 02: continued
-
-@JS('a') // JS_INTEROP_NON_EXTERNAL_MEMBER  //# 03: compile-time error
-set topLevelJsInteropSetter(_) {} //# 03: continued
-
-@JS('a') // JS_INTEROP_NON_EXTERNAL_MEMBER  //# 04: compile-time error
-topLevelJsInteropFunction() {} //# 04: continued
-
-external get externalTopLevelGetter;
-
-external set externalTopLevelSetter(_);
-
-external externalTopLevelFunction();
-
-@JS('a')
-external get externalTopLevelJsInteropGetter;
-
-@JS('b')
-external set externalTopLevelJsInteropSetter(_);
-
-@JS('c')
-external externalTopLevelJsInteropFunction();
-
-class Class {
-  Class.generative();
-  factory Class.fact() => null as dynamic;
-
-  // GENERIC  //# 08: compile-time error
-  external Class.externalGenerative(); //# 08: continued
-
-  // GENERIC  //# 09: compile-time error
-  external factory Class.externalFact(); //# 09: continued
-
-  @JS('a') // GENERIC  //# 10: compile-time error
-  Class.jsInteropGenerative(); //# 10: continued
-
-  @JS('a') // GENERIC  //# 11: compile-time error
-  factory Class.jsInteropFact() => null; //# 11: continued
-
-  @JS('a') // GENERIC  //# 12: compile-time error
-  external Class.externalJsInteropGenerative(); //# 12: continued
-
-  @JS('a') // GENERIC  //# 13: compile-time error
-  external factory Class.externalJsInteropFact(); //# 13: continued
-
-  var instanceField;
-  get instanceGetter => null;
-  set instanceSetter(_) {}
-  instanceMethod() {}
-
-  static var staticField;
-  static get staticGetter => null;
-  static set staticSetter(_) {}
-  static staticMethod() {}
-
-  @JS('a') // GENERIC  //# 14: compile-time error
-  var instanceJsInteropField; //# 14: continued
-
-  @JS('a') // GENERIC  //# 15: compile-time error
-  get instanceJsInteropGetter => null; //# 15: continued
-
-  @JS('a') // GENERIC  //# 16: compile-time error
-  set instanceJsInteropSetter(_) {} //# 16: continued
-
-  @JS('a') // GENERIC  //# 17: compile-time error
-  instanceJsInteropMethod() {} //# 17: continued
-
-  @JS('a') // GENERIC  //# 18: compile-time error
-  static var staticJsInteropField; //# 18: continued
-
-  @JS('a') // GENERIC //# 19: compile-time error
-  static get staticJsInteropGetter => null; //# 19: continued
-
-  @JS('a') // GENERIC  //# 20: compile-time error
-  static set staticJsInteropSetter(_) {} //# 20: continued
-
-  @JS('a') // GENERIC  //# 21: compile-time error
-  static staticJsInteropMethod() {} //# 21: continued
-
-  // GENERIC  //# 22: compile-time error
-  external get externalInstanceGetter; //# 22: continued
-
-  // GENERIC  //# 23: compile-time error
-  external set externalInstanceSetter(_); //# 23: continued
-
-  // GENERIC  //# 24: compile-time error
-  external externalInstanceMethod(); //# 24: continued
-
-  // GENERIC  //# 25: compile-time error
-  external static get externalStaticGetter; //# 25: continued
-
-  // GENERIC  //# 26: compile-time error
-  external static set externalStaticSetter(_); //# 26: continued
-
-  // GENERIC  //# 27: compile-time error
-  external static externalStaticMethod(); //# 27: continued
-
-  @JS('a') // GENERIC  //# 28: compile-time error
-  external get externalInstanceJsInteropGetter; //# 28: continued
-
-  @JS('a') // GENERIC  //# 29: compile-time error
-  external set externalInstanceJsInteropSetter(_); //# 29: continued
-
-  @JS('a') // GENERIC  //# 30: compile-time error
-  external externalInstanceJsInteropMethod(); //# 30: continued
-
-  @JS('a') // GENERIC  //# 31: compile-time error
-  external static get externalStaticJsInteropGetter; //# 31: continued
-
-  @JS('a') // GENERIC  //# 32: compile-time error
-  external static set externalStaticJsInteropSetter(_); //# 32: continued
-
-  @JS('a') // GENERIC  //# 33: compile-time error
-  external static externalStaticJsInteropMethod(); //# 33: continued
-}
-
-@JS('d')
-class JsInteropClass {
-  // GENERIC //# 34: compile-time error
-  JsInteropClass.generative(); //# 34: continued
-
-  // JS_INTEROP_CLASS_NON_EXTERNAL_CONSTRUCTOR //# 35: compile-time error
-  factory JsInteropClass.fact() => null; //# 35: continued
-
-  external JsInteropClass.externalGenerative();
-  external factory JsInteropClass.externalFact();
-
-  @JS('a') // GENERIC //# 36: compile-time error
-  JsInteropClass.jsInteropGenerative(); //# 36: continued
-
-  @JS('a') // JS_INTEROP_CLASS_NON_EXTERNAL_CONSTRUCTOR //# 37: compile-time error
-  factory JsInteropClass.jsInteropFact() => null; //# 37: continued
-
-  @JS('a')
-  external JsInteropClass.externalJsInteropGenerative();
-
-  @JS('a')
-  external factory JsInteropClass.externalJsInteropFact();
-
-  // IMPLICIT_JS_INTEROP_FIELD_NOT_SUPPORTED //# 38: compile-time error
-  var instanceField; //# 38: continued
-
-  // GENERIC //# 39: compile-time error
-  get instanceGetter => null; //# 39: continued
-
-  // GENERIC //# 40: compile-time error
-  set instanceSetter(_) {} //# 40: continued
-
-  // GENERIC //# 41: compile-time error
-  instanceMethod() {} //# 41: continued
-
-  // IMPLICIT_JS_INTEROP_FIELD_NOT_SUPPORTED //# 42: compile-time error
-  static var staticField; //# 42: continued
-
-  // JS_INTEROP_CLASS_NON_EXTERNAL_MEMBER //# 43: compile-time error
-  static get staticGetter => null; //# 43: continued
-
-  // JS_INTEROP_CLASS_NON_EXTERNAL_MEMBER //# 44: compile-time error
-  static set staticSetter(_) {} //# 44: continued
-
-  // JS_INTEROP_CLASS_NON_EXTERNAL_MEMBER //# 45: compile-time error
-  static staticMethod() {} //# 45: continued
-
-  @JS('a') // GENERIC //# 46: compile-time error
-  var instanceJsInteropField; //# 46: continued
-
-  @JS('a') // GENERIC //# 48: compile-time error
-  get instanceJsInteropGetter => null; //# 48: continued
-
-  @JS('a') // GENERIC //# 49: compile-time error
-  set instanceJsInteropSetter(_) {} //# 49: continued
-
-  @JS('a') // GENERIC //# 50: compile-time error
-  instanceJsInteropMethod() {} //# 50: continued
-
-  @JS('a') // IMPLICIT_JS_INTEROP_FIELD_NOT_SUPPORTED //# 51: compile-time error
-  static var staticJsInteropField; //# 51: continued
-
-  @JS('a') // JS_INTEROP_CLASS_NON_EXTERNAL_MEMBER //# 52: compile-time error
-  static get staticJsInteropGetter => null; //# 52: continued
-
-  @JS('a') // JS_INTEROP_CLASS_NON_EXTERNAL_MEMBER //# 53: compile-time error
-  static set staticJsInteropSetter(_) {} //# 53: continued
-
-  @JS('a') // JS_INTEROP_CLASS_NON_EXTERNAL_MEMBER //# 54: compile-time error
-  static staticJsInteropMethod() {} //# 54: continued
-
-  external get externalInstanceGetter;
-  external set externalInstanceSetter(_);
-  external externalInstanceMethod();
-
-  external static get externalStaticGetter;
-  external static set externalStaticSetter(_);
-  external static externalStaticMethod();
-
-  @JS('a')
-  external get externalInstanceJsInteropGetter;
-
-  @JS('a')
-  external set externalInstanceJsInteropSetter(_);
-
-  @JS('a')
-  external externalInstanceJsInteropMethod();
-
-  @JS('a')
-  external static get externalStaticJsInteropGetter;
-
-  @JS('a')
-  external static set externalStaticJsInteropSetter(_);
-
-  @JS('a')
-  external static externalStaticJsInteropMethod();
-}
-
-bool flag;
-
-main() {
-  if (flag = false) {
-    topLevelSetter = topLevelField = topLevelGetter;
-    topLevelFunction();
-    externalTopLevelSetter = externalTopLevelGetter;
-    externalTopLevelFunction();
-    externalTopLevelJsInteropSetter = externalTopLevelJsInteropGetter;
-    externalTopLevelJsInteropFunction();
-    Class c1 = new Class.generative();
-    new Class.fact();
-    c1.instanceSetter = c1.instanceField = c1.instanceGetter;
-    c1.instanceMethod();
-    Class.staticSetter = Class.staticField = Class.staticGetter;
-    Class.staticMethod();
-    JsInteropClass c2 = new JsInteropClass.externalGenerative();
-    new JsInteropClass.externalFact();
-    new JsInteropClass.externalJsInteropGenerative();
-    new JsInteropClass.externalJsInteropFact();
-    c2.externalInstanceSetter = c2.externalInstanceGetter;
-    c2.externalInstanceMethod();
-    c2.externalInstanceJsInteropSetter = c2.externalInstanceJsInteropGetter;
-    c2.externalInstanceJsInteropMethod();
-    JsInteropClass.externalStaticSetter = JsInteropClass.externalStaticGetter;
-    JsInteropClass.externalStaticMethod();
-    JsInteropClass.externalStaticJsInteropSetter =
-        JsInteropClass.externalStaticJsInteropGetter;
-    JsInteropClass.externalStaticJsInteropMethod();
-  }
-}
diff --git a/tests/web_2/label_test.dart b/tests/web_2/label_test.dart
deleted file mode 100644
index 3fbd81d2c36..00000000000
--- a/tests/web_2/label_test.dart
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// A break label must be declared where it's used.
-undeclaredBreakLabel1() {
-  foo: { break bar; break foo; } // //# 01: compile-time error
-}
-
-undeclaredBreakLabel2() {
-  foo: while (true) { break bar; break foo; } // //# 02: compile-time error
-}
-
-// An unlabeled break must be inside a loop or switch.
-noBreakTarget() {
-  foo: if (true) { break; break foo; } // //# 03: compile-time error
-}
-
-// A continue label must be declared where it's used.
-undeclaredContinueLabel() {
-  foo: for (;;) { continue bar; break foo; } // //# 04: compile-time error
-}
-
-// An unlabeled continue must be inside a loop.
-noContinueTarget() {
-  foo: if (true) continue; else break foo; // //# 05: compile-time error
-}
-
-// A continue label must point to a continue-able statement.
-wrongContinueLabel() {
-  foo: if (true) continue foo; // //# 06: compile-time error
-}
-
-// Labels are not captured by closures.
-noncaptureLabel() {
-  foo: { //                   //# 07: compile-time error
-    (() { break foo; })(); // //# 07: continued
-    break foo; //             //# 07: continued
-  } //                        //# 07: continued
-}
-
-// Implicit break targets are not captured by closures.
-noncaptureBreak() {
-  while(true) (() { break; })(); // //# 08: compile-time error
-}
-
-// Implicit continue targets are not captured by closures.
-noncaptureContinue() {
-  while(true) (() { continue; })(); // //# 09: compile-time error
-}
-
-main() {
-  undeclaredBreakLabel1();
-  undeclaredBreakLabel2();
-  noBreakTarget();
-  undeclaredContinueLabel();
-  noContinueTarget();
-  wrongContinueLabel();
-  noncaptureLabel();
-  noncaptureBreak();
-  noncaptureContinue();
-}
diff --git a/tests/web_2/lax_runtime_type_closure_equals1_test.dart b/tests/web_2/lax_runtime_type_closure_equals1_test.dart
deleted file mode 100644
index 5c5fc205ecb..00000000000
--- a/tests/web_2/lax_runtime_type_closure_equals1_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong --omit-implicit-checks --lax-runtime-type-to-string
-
-import 'package:expect/expect.dart';
-
-class Class<T> {
-  Class();
-}
-
-main() {
-  local1a() {}
-
-  local1b() {}
-
-  local2(int i, String s) => i;
-
-  Expect.isTrue(local1a.runtimeType == local1b.runtimeType);
-  Expect.isFalse(local1a.runtimeType == local2.runtimeType);
-  new Class();
-}
diff --git a/tests/web_2/lax_runtime_type_closure_equals2_test.dart b/tests/web_2/lax_runtime_type_closure_equals2_test.dart
deleted file mode 100644
index 2471193af78..00000000000
--- a/tests/web_2/lax_runtime_type_closure_equals2_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong --omit-implicit-checks --lax-runtime-type-to-string
-
-import 'package:expect/expect.dart';
-
-class Class<T> {
-  Class();
-}
-
-main() {
-  T local1a<T>() => null;
-
-  T local1b<T>() => null;
-
-  T local2<T>(T t, String s) => t;
-
-  Expect.isTrue(local1a.runtimeType == local1b.runtimeType);
-  Expect.isFalse(local1a.runtimeType == local2.runtimeType);
-  new Class();
-}
diff --git a/tests/web_2/lax_runtime_type_closure_equals3_test.dart b/tests/web_2/lax_runtime_type_closure_equals3_test.dart
deleted file mode 100644
index 1db6646b5e6..00000000000
--- a/tests/web_2/lax_runtime_type_closure_equals3_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong --omit-implicit-checks --lax-runtime-type-to-string
-
-import 'package:expect/expect.dart';
-
-String method() => null;
-
-class Class1<T> {
-  Class1();
-
-  method() {
-    T local1a() => null;
-
-    T local1b() => null;
-
-    T local2(T t, String s) => t;
-
-    Expect.isTrue(local1a.runtimeType == local1b.runtimeType);
-    Expect.isFalse(local1a.runtimeType == local2.runtimeType);
-    Expect.isFalse(local1a.runtimeType == method.runtimeType);
-  }
-}
-
-class Class2<T> {
-  Class2();
-}
-
-main() {
-  new Class1<int>().method();
-  new Class2<int>();
-}
diff --git a/tests/web_2/lax_runtime_type_closure_equals4_test.dart b/tests/web_2/lax_runtime_type_closure_equals4_test.dart
deleted file mode 100644
index 2a7eee36d83..00000000000
--- a/tests/web_2/lax_runtime_type_closure_equals4_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong --omit-implicit-checks --lax-runtime-type-to-string
-
-import 'package:expect/expect.dart';
-
-class Class1<T> {
-  Class1();
-
-  method1a() => null;
-
-  method1b() => null;
-
-  method2(t, s) => t;
-}
-
-class Class2<T> {
-  Class2();
-}
-
-main() {
-  var c = new Class1<int>();
-
-  Expect.isTrue(c.method1a.runtimeType == c.method1b.runtimeType);
-  Expect.isFalse(c.method1a.runtimeType == c.method2.runtimeType);
-  new Class2<int>();
-}
diff --git a/tests/web_2/lax_runtime_type_closure_equals5_test.dart b/tests/web_2/lax_runtime_type_closure_equals5_test.dart
deleted file mode 100644
index 91a02a9cb3e..00000000000
--- a/tests/web_2/lax_runtime_type_closure_equals5_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong --omit-implicit-checks --lax-runtime-type-to-string
-
-import 'package:expect/expect.dart';
-
-class Class1<T> {
-  Class1();
-
-  T method1a() => null;
-
-  T method1b() => null;
-
-  T method2(T t, String s) => t;
-}
-
-class Class2<T> {
-  Class2();
-}
-
-main() {
-  var c = new Class1<int>();
-
-  Expect.isTrue(c.method1a.runtimeType == c.method1b.runtimeType);
-  Expect.isFalse(c.method1a.runtimeType == c.method2.runtimeType);
-  new Class2<int>();
-}
diff --git a/tests/web_2/lax_runtime_type_closure_equals6_test.dart b/tests/web_2/lax_runtime_type_closure_equals6_test.dart
deleted file mode 100644
index 1283d49baa6..00000000000
--- a/tests/web_2/lax_runtime_type_closure_equals6_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong --omit-implicit-checks --lax-runtime-type-to-string
-
-import 'package:expect/expect.dart';
-
-method1a() => null;
-
-method1b() => null;
-
-method2(t, s) => t;
-
-class Class<T> {
-  Class();
-}
-
-main() {
-  Expect.isTrue(method1a.runtimeType == method1b.runtimeType);
-  Expect.isFalse(method1a.runtimeType == method2.runtimeType);
-  new Class<int>();
-}
diff --git a/tests/web_2/lax_runtime_type_closure_equals7_test.dart b/tests/web_2/lax_runtime_type_closure_equals7_test.dart
deleted file mode 100644
index 5677d2132b6..00000000000
--- a/tests/web_2/lax_runtime_type_closure_equals7_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong --omit-implicit-checks --lax-runtime-type-to-string
-
-import 'package:expect/expect.dart';
-
-T method1a<T>() => null;
-
-T method1b<T>() => null;
-
-T method2<T>(T t, String s) => t;
-
-class Class<T> {
-  Class();
-}
-
-main() {
-  Expect.isTrue(method1a.runtimeType == method1b.runtimeType);
-  Expect.isFalse(method1a.runtimeType == method2.runtimeType);
-  new Class<int>();
-}
diff --git a/tests/web_2/lax_runtime_type_closure_equals8_test.dart b/tests/web_2/lax_runtime_type_closure_equals8_test.dart
deleted file mode 100644
index 578f043b15e..00000000000
--- a/tests/web_2/lax_runtime_type_closure_equals8_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong --omit-implicit-checks --lax-runtime-type-to-string
-
-import 'package:expect/expect.dart';
-
-class Class1<S> {
-  Class1();
-
-  T method1a<T>() => null;
-
-  T method1b<T>() => null;
-
-  T method2<T>(T t, String s) => t;
-}
-
-class Class2<T> {
-  Class2();
-}
-
-main() {
-  var c = new Class1<int>();
-
-  Expect.isTrue(c.method1a.runtimeType == c.method1b.runtimeType);
-  Expect.isFalse(c.method1a.runtimeType == c.method2.runtimeType);
-  new Class2<int>();
-}
diff --git a/tests/web_2/lax_runtime_type_closure_to_string3_test.dart b/tests/web_2/lax_runtime_type_closure_to_string3_test.dart
deleted file mode 100644
index bc1f41eeeb0..00000000000
--- a/tests/web_2/lax_runtime_type_closure_to_string3_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong --omit-implicit-checks --lax-runtime-type-to-string --experiment-new-rti
-
-import 'package:expect/expect.dart';
-
-class Class1<T> {
-  Class1();
-
-  T method() => null;
-}
-
-class Class2<T> {
-  Class2();
-}
-
-main() {
-  Class1<int> cls1 = new Class1<int>();
-  Expect.equals("() => erased", cls1.method.runtimeType.toString());
-  new Class2<int>();
-}
diff --git a/tests/web_2/lax_runtime_type_closure_to_string4_test.dart b/tests/web_2/lax_runtime_type_closure_to_string4_test.dart
deleted file mode 100644
index 1dc36aee096..00000000000
--- a/tests/web_2/lax_runtime_type_closure_to_string4_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong --omit-implicit-checks --lax-runtime-type-to-string
-
-import 'package:expect/expect.dart';
-
-class Class1 {
-  Class1();
-
-  T method<T>() => null;
-}
-
-class Class2<T> {
-  Class2();
-}
-
-main() {
-  Class1 cls1 = new Class1();
-  Expect.equals("<T1>() => T1", cls1.method.runtimeType.toString());
-  new Class2<int>();
-}
diff --git a/tests/web_2/lax_runtime_type_closure_to_string5_test.dart b/tests/web_2/lax_runtime_type_closure_to_string5_test.dart
deleted file mode 100644
index 98d20636f6d..00000000000
--- a/tests/web_2/lax_runtime_type_closure_to_string5_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong --omit-implicit-checks --lax-runtime-type-to-string
-
-import 'package:expect/expect.dart';
-
-class Class<T> {
-  Class();
-}
-
-method1() {}
-
-method2(int i) => i;
-
-main() {
-  Expect.equals("() => dynamic", '${method1.runtimeType}');
-  method2(0);
-  new Class();
-}
diff --git a/tests/web_2/lax_runtime_type_closure_to_string6_test.dart b/tests/web_2/lax_runtime_type_closure_to_string6_test.dart
deleted file mode 100644
index c1970585069..00000000000
--- a/tests/web_2/lax_runtime_type_closure_to_string6_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong --omit-implicit-checks --lax-runtime-type-to-string
-
-import 'package:expect/expect.dart';
-
-class Class<T> {
-  Class();
-}
-
-method1<T>() {}
-
-method2<T>(t) => t;
-
-main() {
-  Expect.equals("<T1>() => dynamic", '${method1.runtimeType}');
-  method2(0);
-  new Class();
-}
diff --git a/tests/web_2/lax_runtime_type_equals1_test.dart b/tests/web_2/lax_runtime_type_equals1_test.dart
deleted file mode 100644
index 02638dc7fa4..00000000000
--- a/tests/web_2/lax_runtime_type_equals1_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong --omit-implicit-checks --lax-runtime-type-to-string
-
-import 'package:expect/expect.dart';
-
-class Class1a<T> {
-  Class1a();
-
-  bool operator ==(other) {
-    if (identical(this, other)) return true;
-    return runtimeType == other.runtimeType;
-  }
-}
-
-class Class1b<T> extends Class1a<T> {
-  Class1b();
-}
-
-class Class1c<T> implements Class1a<T> {
-  Class1c();
-}
-
-class Class2<T> {
-  Class2();
-}
-
-main() {
-  Class1a<int> cls1a = new Class1a<int>();
-  Class1a<int> cls1b1 = new Class1b<int>();
-  Class1a<int> cls1b2 = new Class1b<int>();
-  Class1c<int> cls1c = new Class1c<int>();
-  Class2<int> cls2 = new Class2<int>();
-  Expect.isFalse(cls1a == cls1b1);
-  Expect.isTrue(cls1b1 == cls1b2);
-  Expect.isFalse(cls1a == cls1c);
-  Expect.isFalse(cls1a == cls2);
-}
diff --git a/tests/web_2/lax_runtime_type_equals2_test.dart b/tests/web_2/lax_runtime_type_equals2_test.dart
deleted file mode 100644
index c37c7338b57..00000000000
--- a/tests/web_2/lax_runtime_type_equals2_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong --omit-implicit-checks --lax-runtime-type-to-string
-
-import 'package:expect/expect.dart';
-
-class Class1a<T> {
-  Class1a();
-
-  bool operator ==(other) {
-    if (identical(this, other)) return true;
-    return other.runtimeType == runtimeType;
-  }
-}
-
-class Class1b<T> extends Class1a<T> {
-  Class1b();
-}
-
-class Class1c<T> implements Class1a<T> {
-  Class1c();
-}
-
-class Class2<T> {
-  Class2();
-}
-
-main() {
-  Class1a<int> cls1a = new Class1a<int>();
-  Class1a<int> cls1b1 = new Class1b<int>();
-  Class1a<int> cls1b2 = new Class1b<int>();
-  Class1c<int> cls1c = new Class1c<int>();
-  Class2<int> cls2 = new Class2<int>();
-  Expect.isFalse(cls1a == cls1b1);
-  Expect.isTrue(cls1b1 == cls1b2);
-  Expect.isFalse(cls1a == cls1c);
-  Expect.isFalse(cls1a == cls2);
-}
diff --git a/tests/web_2/lax_runtime_type_equals3_test.dart b/tests/web_2/lax_runtime_type_equals3_test.dart
deleted file mode 100644
index 92fc4afef1f..00000000000
--- a/tests/web_2/lax_runtime_type_equals3_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong --omit-implicit-checks --lax-runtime-type-to-string
-
-import 'package:expect/expect.dart';
-
-class Class1a<T> {
-  Class1a();
-
-  bool operator ==(other) {
-    if (identical(this, other)) return true;
-    return runtimeType == other?.runtimeType;
-  }
-}
-
-class Class1b<T> extends Class1a<T> {
-  Class1b();
-}
-
-class Class1c<T> implements Class1a<T> {
-  Class1c();
-}
-
-class Class2<T> {
-  Class2();
-}
-
-main() {
-  Class1a<int> cls1a = new Class1a<int>();
-  Class1a<int> cls1b1 = new Class1b<int>();
-  Class1a<int> cls1b2 = new Class1b<int>();
-  Class1c<int> cls1c = new Class1c<int>();
-  Class2<int> cls2 = new Class2<int>();
-  Expect.isFalse(cls1a == cls1b1);
-  Expect.isTrue(cls1b1 == cls1b2);
-  Expect.isFalse(cls1a == cls1c);
-  Expect.isFalse(cls1a == cls2);
-}
diff --git a/tests/web_2/lax_runtime_type_equals4_test.dart b/tests/web_2/lax_runtime_type_equals4_test.dart
deleted file mode 100644
index 99218fb16b3..00000000000
--- a/tests/web_2/lax_runtime_type_equals4_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong --omit-implicit-checks --lax-runtime-type-to-string
-
-import 'package:expect/expect.dart';
-
-class Class1a<T> {
-  Class1a();
-
-  bool operator ==(other) {
-    if (identical(this, other)) return true;
-    return other?.runtimeType == runtimeType;
-  }
-}
-
-class Class1b<T> extends Class1a<T> {
-  Class1b();
-}
-
-class Class1c<T> implements Class1a<T> {
-  Class1c();
-}
-
-class Class2<T> {
-  Class2();
-}
-
-main() {
-  Class1a<int> cls1a = new Class1a<int>();
-  Class1a<int> cls1b1 = new Class1b<int>();
-  Class1a<int> cls1b2 = new Class1b<int>();
-  Class1c<int> cls1c = new Class1c<int>();
-  Class2<int> cls2 = new Class2<int>();
-  Expect.isFalse(cls1a == cls1b1);
-  Expect.isTrue(cls1b1 == cls1b2);
-  Expect.isFalse(cls1a == cls1c);
-  Expect.isFalse(cls1a == cls2);
-}
diff --git a/tests/web_2/lax_runtime_type_instantiate_to_string_test.dart b/tests/web_2/lax_runtime_type_instantiate_to_string_test.dart
deleted file mode 100644
index 9d7c13c6d51..00000000000
--- a/tests/web_2/lax_runtime_type_instantiate_to_string_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong --omit-implicit-checks --lax-runtime-type-to-string
-
-import 'package:expect/expect.dart';
-
-main() {
-  T id<T>(T t) => t;
-  int Function(int) x = id;
-  var toString = "${x.runtimeType}";
-  if ('$Object' == 'Object') {
-    // `true` if non-minified.
-    // The signature of `id` is not otherwise needed so the instantiation
-    // wrapper doesn't have a function type.
-    // The type parameter is present since it is required because `==`
-    // distinguishes instantiations of the same generic function with different
-    // types.
-    Expect.equals("Instantiation1<int>", toString);
-  }
-  print(toString);
-}
diff --git a/tests/web_2/list_factory_test.dart b/tests/web_2/list_factory_test.dart
deleted file mode 100644
index 98fc1b0aab7..00000000000
--- a/tests/web_2/list_factory_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-main() {
-  var a = new List<dynamic>.filled(4, null);
-  Expect.equals(4, a.length);
-  a[0] = 42;
-  a[1] = 43;
-  a[2] = 44;
-  a[3] = 45;
-  for (int i = 0; i < a.length; i++) {
-    Expect.equals(42 + i, a[i]);
-  }
-
-  a = [];
-  a.add(42);
-  a.add(43);
-  a.add(44);
-  a.add(45);
-  Expect.equals(4, a.length);
-  for (int i = 0; i < a.length; i++) {
-    Expect.equals(42 + i, a[i]);
-  }
-}
diff --git a/tests/web_2/literal_string_juxtaposition_test.dart b/tests/web_2/literal_string_juxtaposition_test.dart
deleted file mode 100644
index 737b2abdb55..00000000000
--- a/tests/web_2/literal_string_juxtaposition_test.dart
+++ /dev/null
@@ -1,118 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Note: This test relies on LF line endings in the source file.
-
-import "package:expect/expect.dart";
-
-main() {
-  {
-    // Generates identical compile time constants.
-    var s1 = "abcdefgh";
-    var s2 = "abcd" "efgh";
-    var s3 = "ab" "cd" "ef" "gh";
-    var s4 = "a" "b" "c" "d" "e" "f" "g" "h";
-    var s5 = "a" 'b' r"c" r'd' """e""" '''f''' r"""g""" r'''h''';
-    Expect.isTrue(identical(s1, s2));
-    Expect.isTrue(identical(s1, s3));
-    Expect.isTrue(identical(s1, s4));
-    Expect.isTrue(identical(s1, s5));
-  }
-  {
-    // Separating whitespace isn't necessary for the tokenizer.
-    var s1 = "abcdefgh";
-    var s2 = "abcd" "efgh";
-    var s3 = "ab" "cd" "ef" "gh";
-    var s4 = "a" "b" "c" "d" "e" "f" "g" "h";
-    var s5 = "a" 'b' r"c" r'd' """e""" '''f''' r"""g""" r'''h''';
-    Expect.isTrue(identical(s1, s2));
-    Expect.isTrue(identical(s1, s3));
-    Expect.isTrue(identical(s1, s4));
-    Expect.isTrue(identical(s1, s5));
-    // "a""""""b""" should be tokenized as "a" """""b""", aka. "a" '""b'.
-    Expect.isTrue(identical('a""b', "a" """""b"""));
-    // """a""""""""b""" is 'a' '""b'.
-    Expect.isTrue(identical('a""b', """a""" """""b"""));
-    // Raw strings.
-    Expect.isTrue(identical('ab', "a" r"b"));
-    Expect.isTrue(identical('ab', r"a" "b"));
-    Expect.isTrue(identical('ab', r"a" r"b"));
-  }
-
-  // Newlines are just whitespace.
-  var ms1 = "abc"
-      "def"
-      "ghi"
-      "jkl";
-  Expect.isTrue(identical("abcdefghijkl", ms1));
-
-  // Works with multiline strings too.
-  var ms2 = """abc
-  def"""
-      """
-  ghi
-  jkl
-  """;
-  Expect.isTrue(
-      identical("abc\n  def  ghi\n  jkl\n  ", ms2), "Multiline: $ms2");
-
-  // Binds stronger than property access (it's considered one literal).
-  Expect.equals(5, "ab" "cde".length, "Associativity");
-
-  // Check that interpolations are handled correctly.
-  {
-    var x = "foo";
-    var y = 42;
-    var z = true;
-    String e1 = "$x$y$z";
-    Expect.equals(e1, "$x" "$y$z");
-    Expect.equals(e1, "$x$y" "$z");
-    Expect.equals(e1, "$x" "$y" "$z");
-    String e2 = "-$x-$y-$z-";
-    Expect.equals(e2, "-" "$x" "-" "$y" "-" "$z" "-", "a");
-    Expect.equals(e2, "-$x" "-" "$y" "-" "$z" "-", "b");
-    Expect.equals(e2, "-" "$x-" "$y" "-" "$z" "-", "c");
-    Expect.equals(e2, "-" "$x" "-$y" "-" "$z" "-", "d");
-    Expect.equals(e2, "-" "$x" "-" "$y-" "$z" "-", "e");
-    Expect.equals(e2, "-" "$x" "-" "$y" "-$z" "-", "f");
-    Expect.equals(e2, "-" "$x" "-" "$y" "-" "$z-", "g");
-    Expect.equals(e2, "-" "$x-$y" "-" "$z" "-", "h");
-    Expect.equals(e2, "-" "$x-$y-$z" "-", "i");
-
-    Expect.equals("-$x-$y-", "-" "$x" "-" "$y" "-");
-    Expect.equals("-$x-$y", "-" "$x" "-" "$y");
-    Expect.equals("-$x$y-", "-" "$x" "$y" "-");
-    Expect.equals("$x-$y-", "$x" "-" "$y" "-");
-
-    Expect.equals("$x$y", "$x" "$y");
-    Expect.equals("$x$y", "$x" "" "$y");
-    Expect.equals("$x$y", "$x" "" "" "$y");
-    Expect.equals("$x-$y", "$x" "-" "$y");
-    Expect.equals("$x-$y", "$x" "-" "" "$y");
-    Expect.equals("$x-$y", "$x" "" "-" "$y");
-    Expect.equals("$x-$y", "$x" "" "-" "" "$y");
-
-    Expect.equals("$x--$y", "$x" "-" "-" "$y");
-    Expect.equals("$x--$y", "$x" "-" "-" "" "$y");
-    Expect.equals("$x--$y", "$x" "-" "" "-" "$y");
-    Expect.equals("$x--$y", "$x" "" "-" "-" "$y");
-
-    Expect.equals("$x---$y", "$x" "-" "-" "-" "$y");
-    Expect.equals("$x---", "$x" "-" "-" "-");
-    Expect.equals("---$y", "-" "-" "-" "$y");
-
-    Expect.equals("$x-$y-$z", "${'$x' '-' '$y'}" "-" "$z");
-
-    Expect.equals(
-        r"-foo-42-true-", r"-" "$x" r"""-""" """$y""" r'-' '$z' r'''-''', "j");
-    Expect.equals(
-        r"-$x-42-true-", r"-" r"$x" r"""-""" """$y""" r'-' '$z' r'''-''', "k");
-    Expect.equals(
-        r"-foo-$y-true-", r"-" "$x" r"""-""" r"""$y""" r'-' '$z' r'''-''', "l");
-    Expect.equals(
-        r"-foo-42-$z-", r"-" "$x" r"""-""" """$y""" r'-' r'$z' r'''-''', "m");
-  }
-}
diff --git a/tests/web_2/literals_test.dart b/tests/web_2/literals_test.dart
deleted file mode 100644
index b77b5cc450e..00000000000
--- a/tests/web_2/literals_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-void main() {
-  print(3 + 4 + 5);
-  print(3.0 + 4.0 + 5.0);
-  print("fisk" " " "hest");
-  print(true);
-  print(false);
-}
diff --git a/tests/web_2/local_function_call2_test.dart b/tests/web_2/local_function_call2_test.dart
deleted file mode 100644
index 8c6f3735f5d..00000000000
--- a/tests/web_2/local_function_call2_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for issue 31333.
-
-import 'package:expect/expect.dart';
-
-main() {
-  Expect.throws(() => method() + 42, (e) => e is NoSuchMethodError);
-}
-
-method() {
-  var local = ({foo}) => 42;
-  local(foo: 1).isEven;
-  // Global type inference wrongfully refines `local` to have type JSInt.
-  return local;
-}
diff --git a/tests/web_2/local_function_call_test.dart b/tests/web_2/local_function_call_test.dart
deleted file mode 100644
index fa1d1268394..00000000000
--- a/tests/web_2/local_function_call_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that global type inference computes the correct type for .call on
-// a closure.
-
-import "package:expect/expect.dart";
-
-main() {
-  var f = (int n) => n + 1;
-  f.call(0);
-  Expect.equals(true, f.toString().startsWith("Closure"));
-}
diff --git a/tests/web_2/local_function_generic_strong_test.dart b/tests/web_2/local_function_generic_strong_test.dart
deleted file mode 100644
index c299c04c9a3..00000000000
--- a/tests/web_2/local_function_generic_strong_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-method1() {
-  T local<T>(T t) => t;
-  return local;
-}
-
-@pragma('dart2js:noInline')
-test(o) => o is S Function<S>(S);
-
-main() {
-  Expect.isTrue(test(method1()));
-}
diff --git a/tests/web_2/local_function_signatures_strong_test.dart b/tests/web_2/local_function_signatures_strong_test.dart
deleted file mode 100644
index f49cf528e3a..00000000000
--- a/tests/web_2/local_function_signatures_strong_test.dart
+++ /dev/null
@@ -1,116 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-class Class1 {
-  method1() {
-    num local<T>(num n) => null;
-    return local;
-  }
-
-  method2() {
-    num local<T>(int n) => null;
-    return local;
-  }
-
-  method3() {
-    int local<T>(num n) => null;
-    return local;
-  }
-}
-
-class Class2 {
-  method4<T>() {
-    num local(T n) => null;
-    return local;
-  }
-}
-
-class Class3 {
-  method5<T>() {
-    T local(num n) => null;
-    return local;
-  }
-}
-
-class Class4 {
-  method6<T>() {
-    num local(num n, T t) => null;
-    return local;
-  }
-}
-
-method7<T>() {
-  num local(T n) => null;
-  return local;
-}
-
-method8<T>() {
-  T local(num n) => null;
-  return local;
-}
-
-method9<T>() {
-  num local(num n, T t) => null;
-  return local;
-}
-
-method10() {
-  num local<T>(T n) => null;
-  return local;
-}
-
-method11() {
-  T local<T>(num n) => null;
-  return local;
-}
-
-method12() {
-  num local<T>(num n, T t) => null;
-  return local;
-}
-
-num Function(num) //# 01: ok
-    method13() {
-  num local<T>(num n) => null;
-  return local;
-}
-
-num Function(num) //# 01: continued
-    method14() {
-  num local<T>(T n) => null;
-  return local;
-}
-
-num Function(num) //# 01: continued
-    method15() {
-  T local<T>(num n) => null;
-  return local;
-}
-
-@pragma('dart2js:noInline')
-test(o) => o is num Function(num);
-
-main() {
-  Expect.isFalse(test(new Class1().method1()));
-  Expect.isFalse(test(new Class1().method2()));
-  Expect.isFalse(test(new Class1().method3()));
-  Expect.isTrue(test(new Class2().method4<num>()));
-  Expect.isTrue(test(new Class3().method5<num>()));
-  Expect.isFalse(test(new Class4().method6<num>()));
-  Expect.isTrue(test(method7<num>()));
-  Expect.isTrue(test(method8<num>()));
-  Expect.isFalse(test(method9()));
-  Expect.isFalse(test(method10()));
-  Expect.isFalse(test(method11()));
-  Expect.isFalse(test(method12()));
-  Expect.isTrue(test(method13())); //# 01: continued
-  Expect.isTrue(test(method14())); //# 01: continued
-  Expect.isTrue(test(method15())); //# 01: continued
-}
diff --git a/tests/web_2/local_function_signatures_test.dart b/tests/web_2/local_function_signatures_test.dart
deleted file mode 100644
index af68ab92089..00000000000
--- a/tests/web_2/local_function_signatures_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-class Class1 {
-  method1() {
-    num local(num n) => null;
-    return local;
-  }
-
-  method2() {
-    num local(int n) => null;
-    return local;
-  }
-
-  method3() {
-    Object local(num n) => null;
-    return local;
-  }
-}
-
-class Class2<T> {
-  method4() {
-    num local(T n) => null;
-    return local;
-  }
-}
-
-class Class3<T> {
-  method5() {
-    T local(num n) => null;
-    return local;
-  }
-}
-
-class Class4<T> {
-  method6() {
-    num local(num n, T t) => null;
-    return local;
-  }
-}
-
-@pragma('dart2js:noInline')
-test(o) => o is num Function(num);
-
-main() {
-  Expect.isTrue(test(new Class1().method1()));
-  Expect.isFalse(test(new Class1().method2()));
-  Expect.isFalse(test(new Class1().method3()));
-  Expect.isTrue(test(new Class2<num>().method4()));
-  Expect.isTrue(test(new Class3<num>().method5()));
-  Expect.isFalse(test(new Class4<num>().method6()));
-}
diff --git a/tests/web_2/local_signature_test.dart b/tests/web_2/local_signature_test.dart
deleted file mode 100644
index b47f40ab535..00000000000
--- a/tests/web_2/local_signature_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-test1(o) => o is Function(int);
-
-@pragma('dart2js:noInline')
-test2(o) => o is Function<T>(T);
-
-class C<S> {
-  @pragma('dart2js:noInline')
-  test(bool expected) {
-    local1(int i) {}
-    local2<T>(T t) {}
-    local3(S s) {}
-
-    Expect.isTrue(test1(local1));
-    Expect.isFalse(test2(local1));
-
-    Expect.isFalse(test1(local2));
-    Expect.isTrue(test2(local2));
-
-    Expect.equals(expected, test1(local3));
-    Expect.isFalse(test2(local3));
-  }
-}
-
-main() {
-  new C<int>().test(true);
-  new C<double>().test(false);
-}
diff --git a/tests/web_2/locals_test.dart b/tests/web_2/locals_test.dart
deleted file mode 100644
index a6359953a6f..00000000000
--- a/tests/web_2/locals_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-void main() {
-  dynamic hello = 'Hello';
-  dynamic world = 'world';
-  dynamic s = 0;
-  s = world;
-  hello = 'Greetings';
-  print("$hello, $world!");
-}
diff --git a/tests/web_2/logical_and_test.dart b/tests/web_2/logical_and_test.dart
deleted file mode 100644
index 14a3fbb39ba..00000000000
--- a/tests/web_2/logical_and_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-void and1() {
-  var b = true;
-  b = b && b;
-  Expect.equals(true, b);
-}
-
-void and2() {
-  var b = false;
-  b = b && b;
-  Expect.equals(false, b);
-}
-
-void and3() {
-  var b = true;
-  b = b && false;
-  Expect.equals(false, b);
-}
-
-void and4() {
-  var b = true;
-  b = b && true;
-  Expect.equals(true, b);
-}
-
-void and5() {
-  if (true && false) Expect.fail('unreachable');
-}
-
-void and6() {
-  var b = true;
-  if (true && true) b = false;
-  Expect.equals(false, b);
-}
-
-void and7() {
-  var b = false;
-  if (true && false) {
-    b = false;
-  } else {
-    b = true;
-  }
-  Expect.equals(true, b);
-}
-
-void main() {
-  and1();
-  and2();
-  and3();
-  and4();
-  and5();
-  and6();
-  and7();
-}
diff --git a/tests/web_2/logical_or_test.dart b/tests/web_2/logical_or_test.dart
deleted file mode 100644
index f8446134fcd..00000000000
--- a/tests/web_2/logical_or_test.dart
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-void or1() {
-  var b = true;
-  b = b || b;
-  Expect.equals(true, b);
-}
-
-void or2() {
-  var b = false;
-  b = b || b;
-  Expect.equals(false, b);
-}
-
-void or3() {
-  var b = true;
-  b = b || false;
-  Expect.equals(true, b);
-}
-
-void or4() {
-  var b = true;
-  b = b || true;
-  Expect.equals(true, b);
-}
-
-void or5() {
-  if (true || false) {} else {
-    Expect.fail('unreachable');
-  }
-}
-
-void or6() {
-  var b = true;
-  if (true || true) b = false;
-  Expect.equals(false, b);
-}
-
-void or7() {
-  var b = false;
-  if (true || false) {
-    b = true;
-  } else {
-    b = false;
-  }
-  Expect.equals(true, b);
-}
-
-void main() {
-  or1();
-  or2();
-  or3();
-  or4();
-  or5();
-  or6();
-  or7();
-}
diff --git a/tests/web_2/loop_if_phi_test.dart b/tests/web_2/loop_if_phi_test.dart
deleted file mode 100644
index a209873a38e..00000000000
--- a/tests/web_2/loop_if_phi_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-void main() {
-  var prev = -1;
-  for (int i = 0; i < 2; i++) {
-    if (prev != -1) {
-      Expect.equals(0, prev);
-    }
-    prev = i;
-  }
-}
diff --git a/tests/web_2/many_constants_test.dart b/tests/web_2/many_constants_test.dart
deleted file mode 100644
index 43157c24a7a..00000000000
--- a/tests/web_2/many_constants_test.dart
+++ /dev/null
@@ -1,121 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// This program has many similar constants that should all have distinct
-// identities. They are sufficiently similar to have name collisions and need
-// ordering by constant value.
-
-import "package:expect/expect.dart";
-
-enum E { A, B, C, D }
-
-class Z {
-  final a, b, c, d, e, f;
-  const Z({this.a: 1, this.b: 1, this.c: 1, this.d: 1, this.e: 1, this.f: 1});
-}
-
-const c1 = const {};
-const c2 = const <int, int>{};
-const c3 = const <dynamic, int>{};
-const c4 = const <int, dynamic>{};
-const l1 = const [];
-const l2 = const <int>[];
-const l3 = const <String>[];
-const l4 = const <num>[];
-
-const ll1 = const [1, 2, 3, 4, 5, 6, 7];
-const ll2 = const [1, 8, 3, 4, 5, 6, 7];
-const ll3 = const [1, 2, 8, 4, 5, 6, 7];
-const ll4 = const [1, 2, 3, 4, 8, 6, 7];
-
-const m1 = const <dynamic, dynamic>{1: 1, 2: 2};
-const m2 = const <dynamic, dynamic>{1: 2, 2: 1};
-const m3 = const <dynamic, dynamic>{1: 1, 2: 1};
-const m4 = const <dynamic, dynamic>{1: 2, 2: 2};
-const m5 = const <dynamic, dynamic>{2: 1, 1: 2};
-const m6 = const <dynamic, dynamic>{2: 2, 1: 1};
-const m7 = const <dynamic, dynamic>{2: 1, 1: 1};
-const m8 = const <dynamic, dynamic>{2: 2, 1: 2};
-const m9 = const <int, int>{1: 1, 2: 2};
-const mA = const <int, int>{1: 2, 2: 1};
-const mB = const <int, int>{1: 1, 2: 1};
-const mC = const <int, int>{1: 2, 2: 2};
-
-const mE1 = const {E.A: E.B};
-const mE2 = const {E.A: E.C};
-const mE3 = const {E.A: 0, E.B: 0};
-const mE4 = const {E.A: 0, E.C: 0};
-const mE5 = const {E.A: 0, E.B: 0, E.C: 4};
-const mE6 = const {E.A: 0, E.B: 0, E.C: 2};
-const mE7 = const {E.A: 0, E.B: 0, E.C: 3};
-const mE8 = const {E.A: 0, E.B: 0, E.C: 1};
-
-const z1 = const Z(f: 3);
-const z2 = const Z(f: 2);
-const z3 = const Z(f: 1);
-const z4 = const Z(e: 2);
-const z5 = const Z(d: 3);
-const z6 = const Z(d: 2);
-
-makeAll() => {
-      'E.A': E.A,
-      'E.B': E.B,
-      'E.C': E.C,
-      'E.D': E.D,
-      'c1': c1,
-      'c2': c2,
-      'c3': c3,
-      'c4': c4,
-      'l1': l1,
-      'l2': l2,
-      'l3': l3,
-      'l4': l4,
-      'll1': ll1,
-      'll2': ll2,
-      'll3': ll3,
-      'l4': ll4,
-      'm1': m1,
-      'm2': m2,
-      'm3': m3,
-      'm4': m4,
-      'm5': m5,
-      'm6': m6,
-      'm7': m7,
-      'm8': m8,
-      'm9': m9,
-      'mA': mA,
-      'mB': mB,
-      'mC': mC,
-      'mE1': mE1,
-      'mE2': mE2,
-      'mE3': mE3,
-      'mE4': mE4,
-      'mE5': mE5,
-      'mE6': mE6,
-      'mE7': mE7,
-      'mE8': mE8,
-      'z1': z1,
-      'z2': z2,
-      'z3': z3,
-      'z4': z4,
-      'z5': z5,
-      'z6': z6,
-    };
-
-main() {
-  var all1 = makeAll();
-  var all2 = makeAll();
-
-  for (var name1 in all1.keys) {
-    var e1 = all1[name1];
-    for (var name2 in all2.keys) {
-      if (name1 == name2) continue;
-      var e2 = all2[name2];
-      Expect.isFalse(
-          identical(e1, e2), 'Different instances  $name1: $e1  $name2: $e2');
-    }
-  }
-}
diff --git a/tests/web_2/many_fields_test.dart b/tests/web_2/many_fields_test.dart
deleted file mode 100644
index 5a2559005e9..00000000000
--- a/tests/web_2/many_fields_test.dart
+++ /dev/null
@@ -1,225 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-// A plain class that implements many fields.
-class A {
-  var fieldA1 = 0x1;
-  var fieldA2 = 0x2;
-  var fieldA3 = 0x4;
-  var fieldA4 = 0x8;
-
-  var fieldB1 = 0x10;
-  var fieldB2 = 0x20;
-  var fieldB3 = 0x40;
-  var fieldB4 = 0x80;
-
-  var fieldC1 = 0x100;
-  var fieldC2 = 0x200;
-  var fieldC3 = 0x400;
-  var fieldC4 = 0x800;
-
-  var fieldD1 = 0x1000;
-  var fieldD2 = 0x2000;
-  var fieldD3 = 0x4000;
-  var fieldD4 = 0x8000;
-
-  var fieldXA1 = 0x1;
-  var fieldXA2 = 0x2;
-  var fieldXA3 = 0x4;
-  var fieldXA4 = 0x8;
-
-  var fieldXB1 = 0x10;
-  var fieldXB2 = 0x20;
-  var fieldXB3 = 0x40;
-  var fieldXB4 = 0x80;
-
-  var fieldXC1 = 0x1;
-  var fieldXC2 = 0x2;
-  var fieldXC3 = 0x4;
-  var fieldXC4 = 0x8;
-
-  var fieldXD1 = 0x10;
-  var fieldXD2 = 0x20;
-  var fieldXD3 = 0x40;
-  var fieldXD4 = 0x80;
-
-  var fieldYA1 = 0x1;
-  var fieldYA2 = 0x200;
-  var fieldYA3 = 0x400;
-  var fieldYA4 = 0x800;
-
-  var fieldYB1 = 0x10;
-  var fieldYB2 = 0x200;
-  var fieldYB3 = 0x400;
-  var fieldYB4 = 0x800;
-
-  var fieldYC1 = 0x100;
-  var fieldYC2 = 0x2000;
-  var fieldYC3 = 0x4000;
-  var fieldYC4 = 0x8000;
-
-  var fieldYD1 = 0x1000;
-  var fieldYD2 = 0x2000;
-  var fieldYD3 = 0x4000;
-  var fieldYD4 = 0x8000;
-}
-
-// Implementing the same fields using inheritance and a mixin.
-class B {
-  var fieldA1 = 0x0011;
-  var fieldA2 = 0x0002;
-  var fieldA3 = 0x0044;
-  var fieldA4 = 0x0008;
-
-  var fieldB1 = 0x0010;
-  var fieldB2 = 0x0220;
-  var fieldB3 = 0x0040;
-  var fieldB4 = 0x0880;
-
-  var fieldC1 = 0x0101;
-  var fieldC2 = 0x0200;
-  var fieldC3 = 0x0404;
-  var fieldC4 = 0x0810;
-
-  var fieldD1 = 0x1000;
-  var fieldD2 = 0x2204;
-  var fieldD3 = 0x4040;
-  var fieldD4 = 0x8801;
-}
-
-class C {
-  var fieldXA1 = 0x8001;
-  var fieldXA2 = 0x4002;
-  var fieldXA3 = 0x2004;
-  var fieldXA4 = 0x1008;
-
-  var fieldXB1 = 0x810;
-  var fieldXB2 = 0x420;
-  var fieldXB3 = 0x240;
-  var fieldXB4 = 0x180;
-
-  var fieldXC1 = 0x180;
-  var fieldXC2 = 0x240;
-  var fieldXC3 = 0x420;
-  var fieldXC4 = 0x810;
-
-  var fieldXD1 = 0x1008;
-  var fieldXD2 = 0x2004;
-  var fieldXD3 = 0x4002;
-  var fieldXD4 = 0x8001;
-}
-
-class D extends B with C {
-  var fieldYA1 = 0x8001;
-  var fieldYA2 = 0x4002;
-  var fieldYA3 = 0x2004;
-  var fieldYA4 = 0x0008;
-
-  var fieldYB1 = 0x810;
-  var fieldYB2 = 0x420;
-  var fieldYB3 = 0x240;
-  var fieldYB4 = 0x080;
-
-  var fieldYC1 = 0x180;
-  var fieldYC2 = 0x240;
-  var fieldYC3 = 0x420;
-  var fieldYC4 = 0x800;
-
-  var fieldYD1 = 0x1008;
-  var fieldYD2 = 0x2004;
-  var fieldYD3 = 0x4002;
-  var fieldYD4 = 0x8000;
-}
-
-// Mix in the mixin into the full implementation, shadowing some fields.
-class E extends A with C {}
-
-// Another mixin for block C.
-class F {
-  var fieldYA1 = 0x0001;
-  var fieldYA2 = 0x1022;
-  var fieldYA3 = 0x0004;
-  var fieldYA4 = 0x0088;
-
-  var fieldYB1 = 0x0410;
-  var fieldYB2 = 0x0022;
-  var fieldYB3 = 0x0040;
-  var fieldYB4 = 0x0880;
-
-  var fieldYC1 = 0x1001;
-  var fieldYC2 = 0x2200;
-  var fieldYC3 = 0x4400;
-  var fieldYC4 = 0x8800;
-
-  var fieldYD1 = 0x1108;
-  var fieldYD2 = 0x2200;
-  var fieldYD3 = 0x4044;
-  var fieldYD4 = 0x8001;
-}
-
-// Use two mixins in a single class.
-class G extends B with C, F {}
-
-bool checkFields(cls) {
-  var blockA = cls.fieldA1 ^
-      cls.fieldA2 ^
-      cls.fieldA3 ^
-      cls.fieldA4 ^
-      cls.fieldB1 ^
-      cls.fieldB2 ^
-      cls.fieldB3 ^
-      cls.fieldB4 ^
-      cls.fieldC1 ^
-      cls.fieldC2 ^
-      cls.fieldC3 ^
-      cls.fieldC4 ^
-      cls.fieldD1 ^
-      cls.fieldD2 ^
-      cls.fieldD3 ^
-      cls.fieldD4;
-  var blockB = cls.fieldXA1 ^
-      cls.fieldXA2 ^
-      cls.fieldXA3 ^
-      cls.fieldXA4 ^
-      cls.fieldXB1 ^
-      cls.fieldXB2 ^
-      cls.fieldXB3 ^
-      cls.fieldXB4 ^
-      cls.fieldXC1 ^
-      cls.fieldXC2 ^
-      cls.fieldXC3 ^
-      cls.fieldXC4 ^
-      cls.fieldXD1 ^
-      cls.fieldXD2 ^
-      cls.fieldXD3 ^
-      cls.fieldXD4;
-  var blockC = cls.fieldYA1 ^
-      cls.fieldYA2 ^
-      cls.fieldYA3 ^
-      cls.fieldYA4 ^
-      cls.fieldYB1 ^
-      cls.fieldYB2 ^
-      cls.fieldYB3 ^
-      cls.fieldYB4 ^
-      cls.fieldYC1 ^
-      cls.fieldYC2 ^
-      cls.fieldYC3 ^
-      cls.fieldYC4 ^
-      cls.fieldYD1 ^
-      cls.fieldYD2 ^
-      cls.fieldYD3 ^
-      cls.fieldYD4;
-  return blockA == 0xFFFF && blockB == 0x0000 && blockC == 0x1111;
-}
-
-main() {
-  var instances = [new A(), new D(), new E(), new G()];
-  for (var instance in instances) {
-    Expect.isTrue(checkFields(instance));
-  }
-}
diff --git a/tests/web_2/many_instantiations_test.dart b/tests/web_2/many_instantiations_test.dart
deleted file mode 100644
index 90f3d812237..00000000000
--- a/tests/web_2/many_instantiations_test.dart
+++ /dev/null
@@ -1,298 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test generic instantiation with many type arguments.
-
-import 'package:expect/expect.dart';
-
-f1<T1>(T1 t1) => '$t1';
-f2<T1, T2>(T1 t1, T2 t2) => '$t1$t2';
-f3<T1, T2, T3>(T1 t1, T2 t2, T3 t3) => '$t1$t2$t3';
-f4<T1, T2, T3, T4>(T1 t1, T2 t2, T3 t3, T4 t4) => '$t1$t2$t3$t4';
-f5<T1, T2, T3, T4, T5>(T1 t1, T2 t2, T3 t3, T4 t4, T5 t5) => '$t1$t2$t3$t4$t5';
-f6<T1, T2, T3, T4, T5, T6>(T1 t1, T2 t2, T3 t3, T4 t4, T5 t5, T6 t6) =>
-    '$t1$t2$t3$t4$t5$t6';
-f7<T1, T2, T3, T4, T5, T6, T7>(
-        T1 t1, T2 t2, T3 t3, T4 t4, T5 t5, T6 t6, T7 t7) =>
-    '$t1$t2$t3$t4$t5$t6$t7';
-f8<T1, T2, T3, T4, T5, T6, T7, T8>(
-        T1 t1, T2 t2, T3 t3, T4 t4, T5 t5, T6 t6, T7 t7, T8 t8) =>
-    '$t1$t2$t3$t4$t5$t6$t7$t8';
-f9<T1, T2, T3, T4, T5, T6, T7, T8, T9>(
-        T1 t1, T2 t2, T3 t3, T4 t4, T5 t5, T6 t6, T7 t7, T8 t8, T9 t9) =>
-    '$t1$t2$t3$t4$t5$t6$t7$t8$t9';
-f10<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>(T1 t1, T2 t2, T3 t3, T4 t4, T5 t5,
-        T6 t6, T7 t7, T8 t8, T9 t9, T10 t10) =>
-    '$t1$t2$t3$t4$t5$t6$t7$t8$t9$t10';
-f11<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11>(T1 t1, T2 t2, T3 t3, T4 t4,
-        T5 t5, T6 t6, T7 t7, T8 t8, T9 t9, T10 t10, T11 t11) =>
-    '$t1$t2$t3$t4$t5$t6$t7$t8$t9$t10$t11';
-f12<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12>(T1 t1, T2 t2, T3 t3,
-        T4 t4, T5 t5, T6 t6, T7 t7, T8 t8, T9 t9, T10 t10, T11 t11, T12 t12) =>
-    '$t1$t2$t3$t4$t5$t6$t7$t8$t9$t10$t11$t12';
-f13<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13>(
-        T1 t1,
-        T2 t2,
-        T3 t3,
-        T4 t4,
-        T5 t5,
-        T6 t6,
-        T7 t7,
-        T8 t8,
-        T9 t9,
-        T10 t10,
-        T11 t11,
-        T12 t12,
-        T13 t13) =>
-    '$t1$t2$t3$t4$t5$t6$t7$t8$t9$t10$t11$t12$t13';
-f14<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14>(
-        T1 t1,
-        T2 t2,
-        T3 t3,
-        T4 t4,
-        T5 t5,
-        T6 t6,
-        T7 t7,
-        T8 t8,
-        T9 t9,
-        T10 t10,
-        T11 t11,
-        T12 t12,
-        T13 t13,
-        T14 t14) =>
-    '$t1$t2$t3$t4$t5$t6$t7$t8$t9$t10$t11$t12$t13$t14';
-f15<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15>(
-        T1 t1,
-        T2 t2,
-        T3 t3,
-        T4 t4,
-        T5 t5,
-        T6 t6,
-        T7 t7,
-        T8 t8,
-        T9 t9,
-        T10 t10,
-        T11 t11,
-        T12 t12,
-        T13 t13,
-        T14 t14,
-        T15 t15) =>
-    '$t1$t2$t3$t4$t5$t6$t7$t8$t9$t10$t11$t12$t13$t14$t15';
-f16<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16>(
-        T1 t1,
-        T2 t2,
-        T3 t3,
-        T4 t4,
-        T5 t5,
-        T6 t6,
-        T7 t7,
-        T8 t8,
-        T9 t9,
-        T10 t10,
-        T11 t11,
-        T12 t12,
-        T13 t13,
-        T14 t14,
-        T15 t15,
-        T16 t16) =>
-    '$t1$t2$t3$t4$t5$t6$t7$t8$t9$t10$t11$t12$t13$t14$t15$t16';
-f17<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17>(
-        T1 t1,
-        T2 t2,
-        T3 t3,
-        T4 t4,
-        T5 t5,
-        T6 t6,
-        T7 t7,
-        T8 t8,
-        T9 t9,
-        T10 t10,
-        T11 t11,
-        T12 t12,
-        T13 t13,
-        T14 t14,
-        T15 t15,
-        T16 t16,
-        T17 t17) =>
-    '$t1$t2$t3$t4$t5$t6$t7$t8$t9$t10$t11$t12$t13$t14$t15$t16$t17';
-f18<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17,
-            T18>(
-        T1 t1,
-        T2 t2,
-        T3 t3,
-        T4 t4,
-        T5 t5,
-        T6 t6,
-        T7 t7,
-        T8 t8,
-        T9 t9,
-        T10 t10,
-        T11 t11,
-        T12 t12,
-        T13 t13,
-        T14 t14,
-        T15 t15,
-        T16 t16,
-        T17 t17,
-        T18 t18) =>
-    '$t1$t2$t3$t4$t5$t6$t7$t8$t9$t10$t11$t12$t13$t14$t15$t16$t17$t18';
-f19<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17,
-            T18, T19>(
-        T1 t1,
-        T2 t2,
-        T3 t3,
-        T4 t4,
-        T5 t5,
-        T6 t6,
-        T7 t7,
-        T8 t8,
-        T9 t9,
-        T10 t10,
-        T11 t11,
-        T12 t12,
-        T13 t13,
-        T14 t14,
-        T15 t15,
-        T16 t16,
-        T17 t17,
-        T18 t18,
-        T19 t19) =>
-    '$t1$t2$t3$t4$t5$t6$t7$t8$t9$t10$t11$t12$t13$t14$t15$t16$t17$t18$t19';
-f20<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17,
-            T18, T19, T20>(
-        T1 t1,
-        T2 t2,
-        T3 t3,
-        T4 t4,
-        T5 t5,
-        T6 t6,
-        T7 t7,
-        T8 t8,
-        T9 t9,
-        T10 t10,
-        T11 t11,
-        T12 t12,
-        T13 t13,
-        T14 t14,
-        T15 t15,
-        T16 t16,
-        T17 t17,
-        T18 t18,
-        T19 t19,
-        T20 t20) =>
-    '$t1$t2$t3$t4$t5$t6$t7$t8$t9$t10$t11$t12$t13$t14$t15$t16$t17$t18$t19$t20';
-f21<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17,
-            T18, T19, T20, T21>(
-        T1 t1,
-        T2 t2,
-        T3 t3,
-        T4 t4,
-        T5 t5,
-        T6 t6,
-        T7 t7,
-        T8 t8,
-        T9 t9,
-        T10 t10,
-        T11 t11,
-        T12 t12,
-        T13 t13,
-        T14 t14,
-        T15 t15,
-        T16 t16,
-        T17 t17,
-        T18 t18,
-        T19 t19,
-        T20 t20,
-        T21 t21) =>
-    '$t1$t2$t3$t4$t5$t6$t7$t8$t9$t10$t11$t12$t13$t14$t15$t16$t17$t18$t19$t20$t21';
-
-m1(Function(int) f) => f(1);
-m2(Function(int, int) f) => f(1, 2);
-m3(Function(int, int, int) f) => f(1, 2, 3);
-m4(Function(int, int, int, int) f) => f(1, 2, 3, 4);
-m5(Function(int, int, int, int, int) f) => f(1, 2, 3, 4, 5);
-m6(Function(int, int, int, int, int, int) f) => f(1, 2, 3, 4, 5, 6);
-m7(Function(int, int, int, int, int, int, int) f) => f(1, 2, 3, 4, 5, 6, 7);
-m8(Function(int, int, int, int, int, int, int, int) f) =>
-    f(1, 2, 3, 4, 5, 6, 7, 8);
-m9(Function(int, int, int, int, int, int, int, int, int) f) =>
-    f(1, 2, 3, 4, 5, 6, 7, 8, 9);
-m10(Function(int, int, int, int, int, int, int, int, int, int) f) =>
-    f(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
-m11(Function(int, int, int, int, int, int, int, int, int, int, int) f) =>
-    f(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11);
-m12(Function(int, int, int, int, int, int, int, int, int, int, int, int) f) =>
-    f(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12);
-m13(
-        Function(
-                int, int, int, int, int, int, int, int, int, int, int, int, int)
-            f) =>
-    f(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13);
-m14(
-        Function(int, int, int, int, int, int, int, int, int, int, int, int,
-                int, int)
-            f) =>
-    f(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14);
-m15(
-        Function(int, int, int, int, int, int, int, int, int, int, int, int,
-                int, int, int)
-            f) =>
-    f(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
-m16(
-        Function(int, int, int, int, int, int, int, int, int, int, int, int,
-                int, int, int, int)
-            f) =>
-    f(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16);
-m17(
-        Function(int, int, int, int, int, int, int, int, int, int, int, int,
-                int, int, int, int, int)
-            f) =>
-    f(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17);
-m18(
-        Function(int, int, int, int, int, int, int, int, int, int, int, int,
-                int, int, int, int, int, int)
-            f) =>
-    f(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18);
-m19(
-        Function(int, int, int, int, int, int, int, int, int, int, int, int,
-                int, int, int, int, int, int, int)
-            f) =>
-    f(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19);
-m20(
-        Function(int, int, int, int, int, int, int, int, int, int, int, int,
-                int, int, int, int, int, int, int, int)
-            f) =>
-    f(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20);
-m21(
-        Function(int, int, int, int, int, int, int, int, int, int, int, int,
-                int, int, int, int, int, int, int, int, int)
-            f) =>
-    f(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
-        21);
-
-main() {
-  Expect.equals('1', m1(f1));
-  Expect.equals('12', m2(f2));
-  Expect.equals('123', m3(f3));
-  Expect.equals('1234', m4(f4));
-  Expect.equals('12345', m5(f5));
-  Expect.equals('123456', m6(f6));
-  Expect.equals('1234567', m7(f7));
-  Expect.equals('12345678', m8(f8));
-  Expect.equals('123456789', m9(f9));
-  Expect.equals('12345678910', m10(f10));
-  Expect.equals('1234567891011', m11(f11));
-  Expect.equals('123456789101112', m12(f12));
-  Expect.equals('12345678910111213', m13(f13));
-  Expect.equals('1234567891011121314', m14(f14));
-  Expect.equals('123456789101112131415', m15(f15));
-  Expect.equals('12345678910111213141516', m16(f16));
-  Expect.equals('1234567891011121314151617', m17(f17));
-  Expect.equals('123456789101112131415161718', m18(f18));
-  Expect.equals('12345678910111213141516171819', m19(f19));
-  Expect.equals('1234567891011121314151617181920', m20(f20));
-  Expect.equals('123456789101112131415161718192021', m21(f21)); //# 01: ok
-}
diff --git a/tests/web_2/map_to_set_test.dart b/tests/web_2/map_to_set_test.dart
deleted file mode 100644
index b4bc1b7ce9f..00000000000
--- a/tests/web_2/map_to_set_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for a missing RTI dependency between Map and JsLinkedHashMap.
-
-import 'package:expect/expect.dart';
-
-main() {
-  var c = new Class<double, int>();
-  var map = c.m();
-  var set = map.keys.toSet();
-  Expect.isFalse(set is Set<String>);
-}
-
-class Class<T, S> {
-  m() {
-    return <T, S>{};
-  }
-}
diff --git a/tests/web_2/math_lib_prefix_test.dart b/tests/web_2/math_lib_prefix_test.dart
deleted file mode 100644
index 7399764c8b0..00000000000
--- a/tests/web_2/math_lib_prefix_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-library math_lib_prefix_test;
-
-import "package:expect/expect.dart";
-import 'dart:math' as foo;
-
-main() {
-  Expect.equals(2.0, foo.sqrt(4));
-  Expect.equals(2.25, foo.pow(1.5, 2.0));
-
-  int i = new foo.Random().nextInt(256);
-  double d = new foo.Random().nextDouble();
-  bool b = new foo.Random().nextBool();
-}
diff --git a/tests/web_2/math_lib_test.dart b/tests/web_2/math_lib_test.dart
deleted file mode 100644
index a6531e995d9..00000000000
--- a/tests/web_2/math_lib_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-library math_lib_test;
-
-import "package:expect/expect.dart";
-import 'dart:math';
-
-main() {
-  Expect.equals(2.0, sqrt(4));
-  Expect.equals(2.25, pow(1.5, 2.0));
-
-  int i = new Random().nextInt(256);
-  double d = new Random().nextDouble();
-  bool b = new Random().nextBool();
-}
diff --git a/tests/web_2/member_namespace_test.dart b/tests/web_2/member_namespace_test.dart
deleted file mode 100644
index 892cb9de66f..00000000000
--- a/tests/web_2/member_namespace_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {
-  static int a;
-  A();
-  static foo() {
-    // Make sure 'A' is not resolved to the constructor.
-    return A.a;
-  }
-}
-
-main() {
-  A.a = 42;
-  Expect.equals(42, A.foo());
-}
diff --git a/tests/web_2/method_signatures_strong_test.dart b/tests/web_2/method_signatures_strong_test.dart
deleted file mode 100644
index 7d18fe30ba3..00000000000
--- a/tests/web_2/method_signatures_strong_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-class Class1 {
-  num method1<T>(num n) => null;
-
-  num method2<T>(int n) => null;
-
-  int method3<T>(num n) => null;
-}
-
-class Class2 {
-  num method4<T>(T n) => null;
-}
-
-class Class3 {
-  T method5<T>(num n) => null;
-}
-
-class Class4 {
-  num method6<T>(num n, T t) => null;
-}
-
-num method7<T>(T n) => null;
-
-T method8<T>(num n) => null;
-
-num method9<T>(num n, T t) => null;
-
-@pragma('dart2js:noInline')
-test(o) => o is num Function(num);
-
-forceInstantiation(num Function(num) f) => f;
-
-main() {
-  Expect.isFalse(test(new Class1().method1));
-  Expect.isFalse(test(new Class1().method2));
-  Expect.isFalse(test(new Class1().method3));
-  Expect.isTrue(test(forceInstantiation(new Class2().method4)));
-  Expect.isTrue(test(forceInstantiation(new Class3().method5)));
-  Expect.isFalse(test(new Class4().method6));
-  Expect.isTrue(test(forceInstantiation(method7)));
-  Expect.isTrue(test(forceInstantiation(method8)));
-  Expect.isFalse(test(method9));
-}
diff --git a/tests/web_2/method_signatures_test.dart b/tests/web_2/method_signatures_test.dart
deleted file mode 100644
index 0126fc472ad..00000000000
--- a/tests/web_2/method_signatures_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-class Class1 {
-  num method1(num n) => null;
-
-  num method2(int n) => null;
-
-  Object method3(num n) => null;
-}
-
-class Class2<T> {
-  num method4(T n) => null;
-}
-
-class Class3<T> {
-  T method5(num n) => null;
-}
-
-class Class4<T> {
-  num method6(num n, T t) => null;
-}
-
-num method7(num n) => null;
-
-num method8(int n) => null;
-
-Object method9(num n) => null;
-
-@pragma('dart2js:noInline')
-test(o) => o is num Function(num);
-
-main() {
-  Expect.isTrue(test(new Class1().method1));
-  Expect.isFalse(test(new Class1().method2));
-  Expect.isFalse(test(new Class1().method3));
-  Expect.isTrue(test(new Class2<num>().method4));
-  Expect.isTrue(test(new Class3<num>().method5));
-  Expect.isFalse(test(new Class4<num>().method6));
-  Expect.isTrue(test(method7));
-  Expect.isFalse(test(method8));
-  Expect.isFalse(test(method9));
-}
diff --git a/tests/web_2/minus_zero2_test.dart b/tests/web_2/minus_zero2_test.dart
deleted file mode 100644
index 88c9502d2f9..00000000000
--- a/tests/web_2/minus_zero2_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for issue 17210.
-
-import "package:expect/expect.dart";
-
-void main() {
-  // Dart2js must use "-0.0" as if it was 0. In particular, it must do its
-  // range-analysis correctly.
-  var list = [1, 2, 3];
-  if (new DateTime.now().millisecondsSinceEpoch == 42) list[1] = 4;
-  int sum = 0;
-  for (num i = -0.0; i < list.length; i++) {
-    sum += list[i];
-  }
-  Expect.equals(6, sum);
-}
diff --git a/tests/web_2/minus_zero_test.dart b/tests/web_2/minus_zero_test.dart
deleted file mode 100644
index 0a4d5b4a7bf..00000000000
--- a/tests/web_2/minus_zero_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for issue 17210.
-
-import "package:expect/expect.dart";
-
-@pragma('dart2js:noInline')
-num minusZero() => -0;
-
-void main() {
-  // Dart2js must not infer that the type-intersection of int and -0.0 is empty.
-  // It must get an interceptor for the addition (`i += 3`), or use the native
-  // JS + operation.
-  int i = minusZero();
-  i += 3;
-  Expect.equals(3, i);
-}
diff --git a/tests/web_2/mixin_subtype_test.dart b/tests/web_2/mixin_subtype_test.dart
deleted file mode 100644
index 2509513c612..00000000000
--- a/tests/web_2/mixin_subtype_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B {}
-
-class I {}
-
-class J {}
-
-mixin M1 on A, B implements I, J {}
-
-class M2 implements A, B, I, J {}
-
-class M3 implements A, B, I, J {}
-
-class M4 implements A, B, I, J {}
-
-class M5 implements A, B, I, J {}
-
-class C implements A, B {}
-
-class D1 = C with M1;
-
-class D2 = C with M2;
-
-class D3 = C with M3;
-
-class D4 extends C with M4 {}
-
-class D5 extends C with M5 {}
-
-class E5 extends D5 {}
-
-@pragma('dart2js:noInline')
-test(o) {}
-
-main() {
-  test(new M3());
-  test(new D2());
-  test(new D4());
-  test(new E5());
-  Expect.subtype<D1, M1>();
-  Expect.subtype<D2, M2>();
-  Expect.subtype<D3, M3>();
-  Expect.subtype<D4, M4>();
-  Expect.subtype<D5, M5>();
-  Expect.subtype<E5, M5>();
-}
diff --git a/tests/web_2/mixin_type_variable_test.dart b/tests/web_2/mixin_type_variable_test.dart
deleted file mode 100644
index 2db8f3ec46c..00000000000
--- a/tests/web_2/mixin_type_variable_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-abstract class Bar<C> {
-  final List<C> _one = <C>[];
-
-  final bool _two = Foo is C;
-}
-
-class Foo extends Object with Bar {}
-
-abstract class A<E> {}
-
-abstract class B<E> extends Object with A<E> {}
-
-class C extends B<int> {
-  final String _string;
-  C(this._string);
-}
-
-abstract class D<T> {}
-
-abstract class E<T> = Object with D<T>;
-
-class F extends E<int> {
-  final String _string;
-  F(this._string);
-}
-
-main() {
-  new Foo();
-  new C('e');
-  new F('e');
-}
diff --git a/tests/web_2/multi_global_def_single_instantiation_test.dart b/tests/web_2/multi_global_def_single_instantiation_test.dart
deleted file mode 100644
index e296868535d..00000000000
--- a/tests/web_2/multi_global_def_single_instantiation_test.dart
+++ /dev/null
@@ -1,8 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-var y, w, z, x = [], q, r = [];
-main() => [x, r];
diff --git a/tests/web_2/named_mixin_runtime_type_test.dart b/tests/web_2/named_mixin_runtime_type_test.dart
deleted file mode 100644
index 96c0dcba8ed..00000000000
--- a/tests/web_2/named_mixin_runtime_type_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-abstract class A {}
-
-abstract class B {}
-
-class C = B with A;
-
-@pragma('dart2js:noInline')
-test(o) => o.runtimeType;
-
-main() {
-  Expect.equals(C, test(new C()));
-}
diff --git a/tests/web_2/named_parameter_for_static_test.dart b/tests/web_2/named_parameter_for_static_test.dart
deleted file mode 100644
index 688894c6ea4..00000000000
--- a/tests/web_2/named_parameter_for_static_test.dart
+++ /dev/null
@@ -1,81 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-oneOptionalArgument(a, {b}) {
-  Expect.equals(1, a);
-  Expect.equals(2, b);
-}
-
-twoOptionalArguments({a, b}) {
-  Expect.equals(1, a);
-  Expect.equals(2, b);
-}
-
-main() {
-  twoOptionalArguments(a: 1, b: 2);
-  twoOptionalArguments(b: 2, a: 1);
-
-  oneOptionalArgument(1, b: 2);
-
-  new A.twoOptionalArguments(a: 1, b: 2);
-  new A.twoOptionalArguments(b: 2, a: 1);
-
-  new A.oneOptionalArgument(1, b: 2);
-
-  new B.one();
-  new B.two();
-  new B.three();
-
-  new B().B_one();
-  new B().B_two();
-  new B().B_three();
-}
-
-class A {
-  A.oneOptionalArgument(a, {b}) {
-    Expect.equals(1, a);
-    Expect.equals(2, b);
-  }
-
-  A.twoOptionalArguments({a, b}) {
-    Expect.equals(1, a);
-    Expect.equals(2, b);
-  }
-
-  A();
-
-  // A named constructor now conflicts with a method of the same name.
-  oneOptArg(a, {b}) {
-    Expect.equals(1, a);
-    Expect.equals(2, b);
-  }
-
-  twoOptArgs({a, b}) {
-    Expect.equals(1, a);
-    Expect.equals(2, b);
-  }
-}
-
-class B extends A {
-  B.one() : super.twoOptionalArguments(a: 1, b: 2);
-  B.two() : super.twoOptionalArguments(b: 2, a: 1);
-  B.three() : super.oneOptionalArgument(1, b: 2);
-
-  B();
-  B_one() {
-    super.twoOptArgs(a: 1, b: 2);
-  }
-
-  B_two() {
-    super.twoOptArgs(b: 2, a: 1);
-  }
-
-  B_three() {
-    super.oneOptArg(1, b: 2);
-  }
-}
diff --git a/tests/web_2/named_parameter_test.dart b/tests/web_2/named_parameter_test.dart
deleted file mode 100644
index b9cbc472048..00000000000
--- a/tests/web_2/named_parameter_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {
-  foo({a, b}) {
-    Expect.equals(0, a);
-    Expect.equals(1, b);
-  }
-}
-
-main() {
-  A a = new A();
-  a.foo(a: 0, b: 1);
-  a.foo(b: 1, a: 0);
-}
diff --git a/tests/web_2/nan_negate_test.dart b/tests/web_2/nan_negate_test.dart
deleted file mode 100644
index e1ef3016f9a..00000000000
--- a/tests/web_2/nan_negate_test.dart
+++ /dev/null
@@ -1,121 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-// Don't convert !(a op b) to (a neg-op b) when a or b might be NaN.
-test(double n) {
-  // Force known type to double, preserves NaN.
-  n = 0.0 + n;
-  Expect.isFalse(n >= 0);
-  Expect.isTrue(!(n < 0));
-
-  Expect.isFalse(n <= 0);
-  Expect.isTrue(!(n > 0));
-
-  Expect.isFalse(n < 0);
-  Expect.isTrue(!(n >= 0));
-
-  Expect.isFalse(n > 0);
-  Expect.isTrue(!(n <= 0));
-
-  Expect.isFalse(n == 0);
-  Expect.isFalse(!(n != 0));
-
-  Expect.isTrue(n != 0);
-  Expect.isTrue(!(n == 0));
-
-  Expect.isFalse(identical(n, 0));
-  Expect.isFalse(!(!identical(n, 0)));
-
-  Expect.isTrue(!identical(n, 0));
-  Expect.isTrue(!(identical(n, 0)));
-
-  Expect.isFalse(0 >= n);
-  Expect.isTrue(!(0 < n));
-
-  Expect.isFalse(0 <= n);
-  Expect.isTrue(!(0 > n));
-
-  Expect.isFalse(0 < n);
-  Expect.isTrue(!(0 >= n));
-
-  Expect.isFalse(0 > n);
-  Expect.isTrue(!(0 <= n));
-
-  Expect.isFalse(0 == n);
-  Expect.isFalse(!(0 != n));
-
-  Expect.isTrue(0 != n);
-  Expect.isTrue(!(0 == n));
-
-  Expect.isFalse(identical(0, n));
-  Expect.isFalse(!(!identical(0, n)));
-
-  Expect.isTrue(!identical(0, n));
-  Expect.isTrue(!(identical(0, n)));
-}
-
-testConstant() {
-  Expect.isFalse(double.nan >= 0);
-  Expect.isTrue(!(double.nan < 0));
-
-  Expect.isFalse(double.nan <= 0);
-  Expect.isTrue(!(double.nan > 0));
-
-  Expect.isFalse(double.nan < 0);
-  Expect.isTrue(!(double.nan >= 0));
-
-  Expect.isFalse(double.nan > 0);
-  Expect.isTrue(!(double.nan <= 0));
-
-  Expect.isFalse(double.nan == 0);
-  Expect.isFalse(!(double.nan != 0));
-
-  Expect.isTrue(double.nan != 0);
-  Expect.isTrue(!(double.nan == 0));
-
-  Expect.isFalse(identical(double.nan, 0));
-  Expect.isFalse(!(!identical(double.nan, 0)));
-
-  Expect.isTrue(!identical(double.nan, 0));
-  Expect.isTrue(!(identical(double.nan, 0)));
-
-  Expect.isFalse(0 >= double.nan);
-  Expect.isTrue(!(0 < double.nan));
-
-  Expect.isFalse(0 <= double.nan);
-  Expect.isTrue(!(0 > double.nan));
-
-  Expect.isFalse(0 < double.nan);
-  Expect.isTrue(!(0 >= double.nan));
-
-  Expect.isFalse(0 > double.nan);
-  Expect.isTrue(!(0 <= double.nan));
-
-  Expect.isFalse(0 == double.nan);
-  Expect.isFalse(!(0 != double.nan));
-
-  Expect.isTrue(0 != double.nan);
-  Expect.isTrue(!(0 == double.nan));
-
-  Expect.isFalse(identical(0, double.nan));
-  Expect.isFalse(!(!identical(0, double.nan)));
-
-  Expect.isTrue(!identical(0, double.nan));
-  Expect.isTrue(!(identical(0, double.nan)));
-}
-
-main() {
-  test(hideConstant(27, double.nan));
-  testConstant();
-}
-
-double hideConstant(int n, double result) {
-  if (n == 1) return result;
-  if ((n & 1) == 0) return hideConstant(n >> 1, result);
-  return hideConstant(3 * n + 1, result);
-}
diff --git a/tests/web_2/native/abstract_class_test.dart b/tests/web_2/native/abstract_class_test.dart
deleted file mode 100644
index 2657b25d0f3..00000000000
--- a/tests/web_2/native/abstract_class_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Native classes can have subclasses that are not declared to the program.  The
-// subclasses are indistinguishable from the base class.  This means that
-// abstract native classes can appear to have instances.
-
-@Native("A")
-abstract class A {}
-
-@Native("B")
-abstract class B {
-  foo() native;
-}
-
-class C {}
-
-makeA() native;
-makeB() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A(){}
-  function B(){}
-  B.prototype.foo = function() { return 'B.foo'; };
-  self.makeA = function(){return new A()};
-  self.makeB = function(){return new B()};
-  self.nativeConstructor(A);
-  self.nativeConstructor(B);
-})()""");
-  applyTestExtensions(['A', 'B']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  var a = makeA();
-  var b = makeB();
-  var c = confuse(new C());
-
-  Expect.isTrue(a is A);
-  Expect.isFalse(b is A);
-  Expect.isFalse(c is A);
-
-  Expect.isFalse(a is B);
-  Expect.isTrue(b is B);
-  Expect.isFalse(c is B);
-
-  Expect.isFalse(a is C);
-  Expect.isFalse(b is C);
-  Expect.isTrue(c is C);
-
-  Expect.equals('B.foo', b.foo());
-}
diff --git a/tests/web_2/native/bound_closure_test.dart b/tests/web_2/native/bound_closure_test.dart
deleted file mode 100644
index 8b6f3099dbb..00000000000
--- a/tests/web_2/native/bound_closure_test.dart
+++ /dev/null
@@ -1,90 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-
-// Test calling convention of property extraction closures.
-
-class AA {
-  bar(a, [b = 'A']) => 'AA.bar($a, $b)'; // bar is plain dart convention.
-  foo(a, [b = 'A']) => 'AA.foo($a, $b)'; // foo has interceptor convention.
-}
-
-@Native("BB")
-class BB {
-  foo(a, [b = 'B']) native;
-}
-
-@Native("CC")
-class CC extends BB {
-  foo(a, [b = 'C']) native;
-
-  get superfoo => super.foo;
-}
-
-makeBB() native;
-makeCC() native;
-inscrutable(a) native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function BB() {}
-  BB.prototype.foo = function(u, v) {
-    return 'BB.foo(' + u + ', ' + v + ')';
-  };
-
-  function CC() {}
-  CC.prototype.foo = function(u, v) {
-    return 'CC.foo(' + u + ', ' + v + ')';
-  };
-
-  self.makeBB = function(){return new BB()};
-  self.makeCC = function(){return new CC()};
-  self.inscrutable = function(a){return a;};
-
-  self.nativeConstructor(BB);
-  self.nativeConstructor(CC);
-})()""");
-  applyTestExtensions(['BB', 'CC']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-  var a = inscrutable(new AA());
-  var b = inscrutable(makeBB());
-  var c = inscrutable(makeCC)();
-
-  Expect.equals('AA.bar(1, A)', inscrutable(a).bar(1));
-  Expect.equals('AA.bar(2, 3)', inscrutable(a).bar(2, 3));
-
-  Expect.equals('AA.foo(1, A)', inscrutable(a).foo(1));
-  Expect.equals('AA.foo(2, 3)', inscrutable(a).foo(2, 3));
-
-  Expect.equals('BB.foo(1, B)', inscrutable(b).foo(1));
-  Expect.equals('BB.foo(2, 3)', inscrutable(b).foo(2, 3));
-
-  Expect.equals('CC.foo(1, C)', inscrutable(c).foo(1));
-  Expect.equals('CC.foo(2, 3)', inscrutable(c).foo(2, 3));
-
-  var abar = inscrutable(a).bar;
-  var afoo = inscrutable(a).foo;
-  var bfoo = inscrutable(b).foo;
-  var cfoo = inscrutable(c).foo;
-
-  Expect.equals('AA.bar(1, A)', abar(1));
-  Expect.equals('AA.bar(2, 3)', abar(2, 3));
-
-  Expect.equals('AA.foo(1, A)', afoo(1));
-  Expect.equals('AA.foo(2, 3)', afoo(2, 3));
-
-  Expect.equals('BB.foo(1, B)', bfoo(1));
-  Expect.equals('BB.foo(2, 3)', bfoo(2, 3));
-
-  Expect.equals('CC.foo(1, C)', cfoo(1));
-  Expect.equals('CC.foo(2, 3)', cfoo(2, 3));
-}
diff --git a/tests/web_2/native/browser_compat_1_prepatched_test.dart b/tests/web_2/native/browser_compat_1_prepatched_test.dart
deleted file mode 100644
index 895029ea7f4..00000000000
--- a/tests/web_2/native/browser_compat_1_prepatched_test.dart
+++ /dev/null
@@ -1,98 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Test for dartNativeDispatchHooksTransformer, getTag hook.
-
-@Native("T1A")
-class T1A {}
-
-@Native("T1B")
-class T1B {}
-
-@Native("T1C")
-class T1C {}
-
-makeT1A() native;
-makeT1B() native;
-makeT1C() native;
-
-int getTagCallCount() native;
-
-void setup() {
-  JS('', r'''
-(function(){
-  function T1A() { } //       Normal native class.
-  function T1CrazyB() { } //  Native class with different constructor name.
-
-  var T1fakeA = (function(){
-    function T1A() {} //      Native class with adversarial constructor name.
-    return T1A;
-  })();
-
-  // Make constructors visible on 'window' for prepatching.
-  if (typeof window == "undefined") window = {};
-  window.T1A = T1A;
-  window.T1CrazyB = T1CrazyB;
-
-  self.makeT1A = function(){return new T1A()};
-  self.makeT1B = function(){return new T1CrazyB()};
-  self.makeT1C = function(){return new T1fakeA()};
-
-  self.nativeConstructor(T1A);
-  self.nativeConstructor(T1CrazyB);
-  self.nativeConstructor(T1fakeA);
-
-  var getTagCount = 0;
-  getTagCallCount = function() { return getTagCount; };
-
-  function transformer1(hooks) {
-    var getTag = hooks.getTag;
-
-    function getTagNew(obj) {
-      ++getTagCount;
-
-      // If something looks like a different native type we can check in advance
-      // of the default algorithm.
-      if (obj instanceof T1fakeA) return "T1C";
-
-      var tag = getTag(obj);
-
-      // New constructor names can be mapped here.
-      if (tag == "T1CrazyB") return "T1B";
-
-      return tag;
-    }
-
-    hooks.getTag = getTagNew;
-  }
-
-  dartNativeDispatchHooksTransformer = [transformer1];
-})()''');
-  applyTestExtensions(['T1A', 'T1CrazyB', 'T1fakeA']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  var t1a = makeT1A();
-  var t1b = makeT1B();
-  var t1c = makeT1C();
-
-  Expect.equals(true, t1a is T1A, '$t1a is T1A');
-  Expect.equals(true, t1b is T1B, '$t1b is T1B');
-  Expect.equals(true, t1c is T1C, '$t1c is T1C');
-
-  Expect.equals(2, getTagCallCount());
-
-  Expect.equals(true, confuse(t1a) is T1A, '$t1a is T1A');
-  Expect.equals(true, confuse(t1b) is T1B, '$t1b is T1B');
-  Expect.equals(true, confuse(t1c) is T1C, '$t1c is T1C');
-
-  Expect.equals(2, getTagCallCount());
-}
diff --git a/tests/web_2/native/browser_compat_1_unpatched_test.dart b/tests/web_2/native/browser_compat_1_unpatched_test.dart
deleted file mode 100644
index c08dd577e97..00000000000
--- a/tests/web_2/native/browser_compat_1_unpatched_test.dart
+++ /dev/null
@@ -1,101 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Test for dartNativeDispatchHooksTransformer, getTag hook.
-// Same as browser_compat_1_prepatched_test but with prepatching disabled.
-
-@Native("T1A")
-class T1A {}
-
-@Native("T1B")
-class T1B {}
-
-@Native("T1C")
-class T1C {}
-
-makeT1A() native;
-makeT1B() native;
-makeT1C() native;
-
-int getTagCallCount() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function T1A() { } //       Normal native class.
-  function T1CrazyB() { }  // Native class with different constructor name.
-
-  var T1fakeA = (function(){
-    function T1A() {} //      Native class with adversarial constructor name.
-    return T1A;
-  })();
-
-  // Make constructors visible on 'window' for prepatching.
-  if (typeof window == "undefined") window = {};
-  window.T1A = T1A;
-  window.T1CrazyB = T1CrazyB;
-
-  self.makeT1A = function(){return new T1A()};
-  self.makeT1B = function(){return new T1CrazyB()};
-  self.makeT1C = function(){return new T1fakeA()};
-
-  self.nativeConstructor(T1A);
-  self.nativeConstructor(T1CrazyB);
-  self.nativeConstructor(T1fakeA);
-
-  var getTagCount = 0;
-  getTagCallCount = function() { return getTagCount; };
-
-  function transformer1(hooks) {
-    var getTag = hooks.getTag;
-
-    function getTagNew(obj) {
-      ++getTagCount;
-
-      // If something looks like a different native type we can check in advance
-      // of the default algorithm.
-      if (obj instanceof T1fakeA) return "T1C";
-
-      var tag = getTag(obj);
-
-      // New constructor names can be mapped here.
-      if (tag == "T1CrazyB") return "T1B";
-
-      return tag;
-    }
-
-    hooks.getTag = getTagNew;
-    // Disable prepatching.
-    hooks.prototypeForTag = function() { return null; }
-  }
-
-  dartNativeDispatchHooksTransformer = [transformer1];
-})()""");
-  applyTestExtensions(['T1A', 'T1CrazyB', 'T1fakeA']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  var t1a = makeT1A();
-  var t1b = makeT1B();
-  var t1c = makeT1C();
-
-  Expect.equals(true, t1a is T1A, '$t1a is T1A');
-  Expect.equals(true, t1b is T1B, '$t1b is T1B');
-  Expect.equals(true, t1c is T1C, '$t1c is T1C');
-
-  Expect.equals(3, getTagCallCount());
-
-  Expect.equals(true, confuse(t1a) is T1A, '$t1a is T1A');
-  Expect.equals(true, confuse(t1b) is T1B, '$t1b is T1B');
-  Expect.equals(true, confuse(t1c) is T1C, '$t1c is T1C');
-
-  Expect.equals(3, getTagCallCount());
-}
diff --git a/tests/web_2/native/browser_compat_2_test.dart b/tests/web_2/native/browser_compat_2_test.dart
deleted file mode 100644
index 1a404f53b48..00000000000
--- a/tests/web_2/native/browser_compat_2_test.dart
+++ /dev/null
@@ -1,155 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Test for dartNativeDispatchHooksTransformer
-//  - uncached, instance, leaf and interior caching modes.
-//  - composition of getTag.
-
-@Native("T1A")
-class T1A {
-  foo() native;
-}
-
-@Native("T1B")
-class T1B {
-  foo() native;
-}
-
-@Native("T1C")
-class T1C {
-  foo() native;
-}
-
-@Native("T1D")
-class T1D {
-  foo() native;
-}
-
-makeT1A() native;
-makeT1B() native;
-makeT1C() native;
-makeT1D() native;
-
-int getTagCallCount() native;
-void clearTagCallCount() native;
-
-void setup() {
-  JS('', r'''
-(function(){
-function T1A() { this.v = "a"; }
-function T1B() { this.v = "b"; }
-function T1C() { this.v = "c"; }
-function T1D() { this.v = "d"; }
-
-// T1B, T1C and T1D extend T1A in the implementation but not the declared types.
-// T1A must not be leaf-cached otherwise we will pick up the interceptor for T1A
-// when looking for the dispatch record for an uncached or not-yet-cached T1B,
-// T1C or T1D.
-T1B.prototype.__proto__ = T1A.prototype;
-T1C.prototype.__proto__ = T1A.prototype;
-T1D.prototype.__proto__ = T1A.prototype;
-
-// All classes share one implementation of native method 'foo'.
-T1A.prototype.foo = function() { return this.v + this.name(); };
-T1A.prototype.name = function() { return "A"; };
-T1B.prototype.name = function() { return "B"; };
-T1C.prototype.name = function() { return "C"; };
-T1D.prototype.name = function() { return "D"; };
-
-makeT1A = function(){return new T1A()};
-makeT1B = function(){return new T1B()};
-makeT1C = function(){return new T1C()};
-makeT1D = function(){return new T1D()};
-
-self.nativeConstructor(T1A);
-self.nativeConstructor(T1B);
-self.nativeConstructor(T1C);
-self.nativeConstructor(T1D);
-
-var getTagCount = 0;
-getTagCallCount = function() { return getTagCount; };
-clearTagCallCount = function() { getTagCount = 0; };
-
-function transformer1(hooks) {
-  var getTag = hooks.getTag;
-
-  function getTagNew(obj) {
-    var tag = getTag(obj);
-    // Dependency to test composition, rename T1D -> Dep -> -T1D.
-    if (tag == "T1D") return "Dep";
-    return tag;
-  }
-
-  hooks.getTag = getTagNew;
-}
-
-function transformer2(hooks) {
-  var getTag = hooks.getTag;
-
-  function getTagNew(obj) {
-    ++getTagCount;
-    var tag = getTag(obj);
-    if (tag == "T1A") return "+T1A";  // Interior cached on prototype
-    if (tag == "T1B") return "~T1B";  // Uncached
-    if (tag == "T1C") return "!T1C";  // Instance cached
-    if (tag == "Dep") return "-T1D";  // Leaf cached on prototype
-    return tag;
-  }
-
-  hooks.getTag = getTagNew;
-}
-
-dartNativeDispatchHooksTransformer = [transformer1, transformer2];
-})()''');
-  applyTestExtensions(['T1A', 'T1B', 'T1C', 'T1D']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  var t1a = makeT1A();
-  var t1b = makeT1B();
-  var t1c = makeT1C();
-  var t1d = makeT1D();
-
-  clearTagCallCount();
-  Expect.equals("aA", confuse(t1a).foo(), 't1a is T1A');
-  Expect.equals("bB", confuse(t1b).foo(), 't1b is T1B');
-  Expect.equals("cC", confuse(t1c).foo(), 't1c is T1C');
-  Expect.equals("dD", confuse(t1d).foo(), 't1d is T1D');
-  Expect.equals(4, getTagCallCount(), '4 fresh instances / types');
-
-  clearTagCallCount();
-  Expect.equals("aA", confuse(t1a).foo(), 't1a is T1A');
-  Expect.equals("bB", confuse(t1b).foo(), 't1b is T1B');
-  Expect.equals("cC", confuse(t1c).foo(), 't1c is T1C');
-  Expect.equals("dD", confuse(t1d).foo(), 't1d is T1D');
-  Expect.equals(1, getTagCallCount(), '1 = 1 uncached + (3 cached)');
-
-  t1a = makeT1A();
-  t1b = makeT1B();
-  t1c = makeT1C();
-  t1d = makeT1D();
-
-  clearTagCallCount();
-  Expect.equals("aA", confuse(t1a).foo(), 't1a is T1A');
-  Expect.equals("bB", confuse(t1b).foo(), 't1b is T1B');
-  Expect.equals("cC", confuse(t1c).foo(), 't1c is T1C');
-  Expect.equals("dD", confuse(t1d).foo(), 't1d is T1D');
-  Expect.equals(2, getTagCallCount(),
-      '2 = 1 fresh instance + 1 uncached (+ 2 proto cached)');
-
-  clearTagCallCount();
-  Expect.equals("aA", confuse(t1a).foo(), 't1a is T1A');
-  Expect.equals("bB", confuse(t1b).foo(), 't1b is T1B');
-  Expect.equals("cC", confuse(t1c).foo(), 't1c is T1C');
-  Expect.equals("dD", confuse(t1d).foo(), 't1d is T1D');
-  Expect.equals(1, getTagCallCount(),
-      '1 = 2 proto cached + 1 instance cached + 1 uncached');
-}
diff --git a/tests/web_2/native/catch_javascript_null_stack_trace_test.dart b/tests/web_2/native/catch_javascript_null_stack_trace_test.dart
deleted file mode 100644
index e9b4ad1880e..00000000000
--- a/tests/web_2/native/catch_javascript_null_stack_trace_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-
-// Try throwing a javascript null, and getting a stack-trace from it.
-
-main() {
-  var savedException;
-  try {
-    try {
-      JS('', '(function () {throw null;})()');
-    } catch (e, st) {
-      savedException = st;
-      rethrow;
-    }
-  } catch (error, st) {
-    // st will be empty, but should not throw on toString().
-    Expect.equals(savedException.toString(), st.toString());
-  }
-}
diff --git a/tests/web_2/native/compiler_test_internals.dart b/tests/web_2/native/compiler_test_internals.dart
deleted file mode 100644
index a0ce071d8a8..00000000000
--- a/tests/web_2/native/compiler_test_internals.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-library compiler_test_internals;
-
-export 'dart:_foreign_helper' show JS;
diff --git a/tests/web_2/native/compute_this_script_test.dart b/tests/web_2/native/compute_this_script_test.dart
deleted file mode 100644
index 45f26cc7b32..00000000000
--- a/tests/web_2/native/compute_this_script_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test of _computeThisScript().
-
-import 'dart:_js_helper' show thisScript;
-
-main() {
-  // This is somewhat brittle and relies on an implementation detail
-  // of our test runner, but I can think of no other way to test this.
-  // -- ahe
-  if (!thisScript.endsWith('/compute_this_script_test.js')) {
-    throw 'Unexpected script: "$thisScript"';
-  }
-}
diff --git a/tests/web_2/native/core_type_check_native_test.dart b/tests/web_2/native/core_type_check_native_test.dart
deleted file mode 100644
index 8bdeee98b49..00000000000
--- a/tests/web_2/native/core_type_check_native_test.dart
+++ /dev/null
@@ -1,101 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-@Native("A")
-class A {}
-
-@Native("B")
-class B implements Comparable {
-  noSuchMethod(m) => super.noSuchMethod(m);
-}
-
-@Native("C")
-class C implements Pattern {
-  noSuchMethod(m) => super.noSuchMethod(m);
-}
-
-@Native("D")
-class D implements Pattern, Comparable {
-  noSuchMethod(m) => super.noSuchMethod(m);
-}
-
-makeA() native;
-makeB() native;
-makeC() native;
-makeD() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {};
-  self.makeA = function() { return new A(); };
-  function B() {};
-  self.makeB = function() { return new B(); };
-  function C() {};
-  self.makeC = function() { return new C(); };
-  function D() {};
-  self.makeD = function() { return new D(); };
-
-  self.nativeConstructor(A);
-  self.nativeConstructor(B);
-  self.nativeConstructor(C);
-  self.nativeConstructor(D);
-})()""");
-  applyTestExtensions(['A', 'B', 'C', 'D']);
-}
-
-checkTest(value, expectComparable, expectPattern) {
-  Expect.equals(expectComparable, value is Comparable);
-  Expect.equals(expectPattern, value is Pattern);
-}
-
-checkCast(value, expectComparable, expectPattern) {
-  if (expectComparable) {
-    Expect.identical(value, value as Comparable);
-  } else {
-    Expect.throws(() => value as Comparable);
-  }
-  if (expectPattern) {
-    Expect.identical(value, value as Pattern);
-  } else {
-    Expect.throws(() => value as Pattern);
-  }
-}
-
-checkAll(check) {
-  var things = [
-    [],
-    4,
-    4.2,
-    'foo',
-    new Object(),
-    makeA(),
-    makeB(),
-    makeC(),
-    makeD()
-  ];
-  value(i) => confuse(things[i]);
-
-  check(value(0), false, false); // List
-  check(value(1), true, false); // int
-  check(value(2), true, false); // num
-  check(value(3), true, true); // String
-  check(value(4), false, false); // Object
-  check(value(5), false, false); // A
-  check(value(6), true, false); // B
-  check(value(7), false, true); // C
-  check(value(8), true, true); // D
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  checkAll(checkTest);
-  checkAll(checkCast);
-}
diff --git a/tests/web_2/native/dispatch_property_initialization_test.dart b/tests/web_2/native/dispatch_property_initialization_test.dart
deleted file mode 100644
index de6a9a91f8a..00000000000
--- a/tests/web_2/native/dispatch_property_initialization_test.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test for initialization of dispatchPropertyName.
-
-import 'native_testing.dart';
-
-@Native("Foo")
-class Foo {
-  String method(String x) native;
-}
-
-makeFoo() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function Foo() {}
-  Foo.prototype.method = function(x) { return 'Foo ' + x; };
-
-  self.makeFoo = function() { return new Foo(); };
-
-  self.nativeConstructor(Foo);
-})()""");
-  applyTestExtensions(['Foo']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  // If the dispatchPropertyName is uninitialized, it will be `undefined` or
-  // `null` instead of the secret string or Symbol. These properties on
-  // `Object.prototype` will be retrieved by the lookup instead of `undefined`
-  // for the dispatch record.
-  JS('', r'self.Object.prototype["undefined"] = {}');
-  JS('', r'self.Object.prototype["null"] = {}');
-  Expect.equals('Foo A', makeFoo().method('A'));
-
-  // Slightly different version that has malformed dispatch records.
-  JS('', r'self.Object.prototype["undefined"] = {p: false}');
-  JS('', r'self.Object.prototype["null"] = {p: false}');
-  Expect.equals('Foo B', makeFoo().method('B'));
-}
diff --git a/tests/web_2/native/downcast_test.dart b/tests/web_2/native/downcast_test.dart
deleted file mode 100644
index 90e744b82c5..00000000000
--- a/tests/web_2/native/downcast_test.dart
+++ /dev/null
@@ -1,89 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test for downcasts on native classes.
-
-import "native_testing.dart";
-
-abstract class J {}
-
-abstract class I extends J {
-  I read();
-  write(covariant I x);
-}
-
-// Native implementation.
-
-@Native("A")
-class A implements I {
-  // The native class accepts only other native instances.
-  A read() native;
-  write(A x) native;
-}
-
-@Native("B")
-class B extends A {}
-
-makeA() native;
-makeB() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-function inherits(child, parent) {
-  if (child.prototype.__proto__) {
-    child.prototype.__proto__ = parent.prototype;
-  } else {
-    function tmp() {};
-    tmp.prototype = parent.prototype;
-    child.prototype = new tmp();
-    child.prototype.constructor = child;
-  }
-}
-function A(){}
-function B(){}
-inherits(B, A);
-A.prototype.read = function() { return this._x; };
-A.prototype.write = function(x) { this._x = x; };
-self.makeA = function(){return new A()};
-self.makeB = function(){return new B()};
-
-self.nativeConstructor(A);
-self.nativeConstructor(B);
-})()""");
-  applyTestExtensions(['A', 'B']);
-}
-
-class C {}
-
-bool _check(a, b) => identical(a, b);
-
-main() {
-  nativeTesting();
-  setup();
-
-  var a1 = makeA();
-  var b1 = makeB();
-  var ob = new Object();
-
-  Expect.throws(() => ob as J);
-  Expect.throws(() => ob as I);
-  Expect.throws(() => ob as A);
-  Expect.throws(() => ob as B);
-  Expect.throws(() => ob as C);
-
-  // Use b1 first to prevent a1 is checks patching the A prototype.
-  Expect.equals(b1, b1 as J);
-  Expect.equals(b1, b1 as I);
-  Expect.equals(b1, b1 as A);
-  Expect.equals(b1, b1 as B);
-
-  Expect.equals(a1, a1 as J);
-  Expect.equals(a1, a1 as I);
-  Expect.equals(a1, a1 as A);
-  Expect.throws(() => a1 as B);
-  Expect.throws(() => a1 as C);
-}
diff --git a/tests/web_2/native/error_safeToString_test.dart b/tests/web_2/native/error_safeToString_test.dart
deleted file mode 100644
index c4d9df0e9da..00000000000
--- a/tests/web_2/native/error_safeToString_test.dart
+++ /dev/null
@@ -1,176 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-import 'dart:_foreign_helper' show JS_INTERCEPTOR_CONSTANT;
-import 'dart:_interceptors'
-    show
-        Interceptor,
-        LegacyJavaScriptObject,
-        PlainJavaScriptObject,
-        UnknownJavaScriptObject;
-
-// Test for safe formatting of JavaScript objects by Error.safeToString.
-
-@Native('PPPP')
-class Purple {}
-
-@Native('QQQQ')
-class Q {}
-
-@Native('RRRR')
-class Rascal {
-  toString() => 'RRRRRRRR';
-}
-
-makeA() native;
-makeB() native;
-makeC() native;
-makeD() native;
-makeE() native;
-makeP() native;
-makeQ() native;
-makeR() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  self.makeA = function(){return {hello: 123};};
-
-  function BB(){}
-  self.makeB = function(){return new BB();};
-
-  function CC(){}
-  self.makeC = function(){
-    var x = new CC();
-    x.constructor = null;  // Foils constructor lookup.
-    return x;
-  };
-
-  function DD(){}
-  self.makeD = function(){
-    var x = new DD();
-    x.constructor = {name: 'DDxxx'};  // Foils constructor lookup.
-    return x;
-  };
-
-  function EE(){}
-  self.makeE = function(){
-    var x = new EE();
-    x.constructor = function Liar(){};  // Looks like a legitimate constructor.
-    return x;
-  };
-
-  function PPPP(){}
-  self.makeP = function(){return new PPPP();};
-
-  function QQQQ(){}
-  self.makeQ = function(){return new QQQQ();};
-
-  function RRRR(){}
-  self.makeR = function(){return new RRRR();};
-
-  self.nativeConstructor(PPPP);
-  self.nativeConstructor(QQQQ);
-  self.nativeConstructor(RRRR);
-})()""");
-  applyTestExtensions(['PPPP', 'QQQQ', 'RRRR']);
-}
-
-expectTypeName(expectedName, s) {
-  var m = new RegExp(r"Instance of '(.*)'").firstMatch(s);
-  Expect.isNotNull(m);
-  var name = m.group(1);
-  Expect.isTrue(
-      expectedName == name || name.length <= 3 || name.startsWith('minified:'),
-      "Is '$expectedName' or minified: '$name'");
-}
-
-final plainJsString =
-    Error.safeToString(JS_INTERCEPTOR_CONSTANT(PlainJavaScriptObject));
-
-final unknownJsString =
-    Error.safeToString(JS_INTERCEPTOR_CONSTANT(UnknownJavaScriptObject));
-
-final interceptorString =
-    Error.safeToString(JS_INTERCEPTOR_CONSTANT(Interceptor));
-
-testDistinctInterceptors() {
-  // Test invariants needed for the other tests.
-
-  Expect.notEquals(plainJsString, unknownJsString);
-  Expect.notEquals(plainJsString, interceptorString);
-  Expect.notEquals(unknownJsString, interceptorString);
-
-  expectTypeName('PlainJavaScriptObject', plainJsString);
-  expectTypeName('UnknownJavaScriptObject', unknownJsString);
-  expectTypeName('Interceptor', interceptorString);
-
-  // Sometimes interceptor *objects* are used instead of the prototypes. Check
-  // these work too.
-  var plain2 = Error.safeToString(const PlainJavaScriptObject());
-  Expect.equals(plainJsString, plain2);
-
-  var unk2 = Error.safeToString(const UnknownJavaScriptObject());
-  Expect.equals(unknownJsString, unk2);
-}
-
-testExternal() {
-  var x = makeA();
-  Expect.equals(plainJsString, Error.safeToString(x));
-
-  x = makeB();
-  // Gets name from constructor, regardless of minification.
-  Expect.equals("Instance of 'BB'", Error.safeToString(x));
-
-  x = makeC();
-  Expect.equals(unknownJsString, Error.safeToString(x));
-
-  x = makeD();
-  Expect.equals(unknownJsString, Error.safeToString(x));
-
-  x = makeE();
-  Expect.equals("Instance of 'Liar'", Error.safeToString(x));
-}
-
-testNative() {
-  var x = makeP();
-  Expect.isTrue(x is Purple); // This test forces Purple to be distinguished.
-  Expect.notEquals(plainJsString, Error.safeToString(x));
-  Expect.notEquals(unknownJsString, Error.safeToString(x));
-  Expect.notEquals(interceptorString, Error.safeToString(x));
-  // And not the native class constructor.
-  Expect.notEquals("Instance of 'PPPP'", Error.safeToString(x));
-  expectTypeName('Purple', Error.safeToString(x));
-
-  x = makeQ();
-  print('Q:  $x  ${Error.safeToString(x)}');
-  // We are going to get either the general interceptor or the JavaScript
-  // constructor.
-  Expect.isTrue("Instance of 'QQQQ'" == Error.safeToString(x) ||
-      interceptorString == Error.safeToString(x));
-
-  x = makeR();
-
-  // Rascal overrides 'toString'.  The toString() call causes Rascal to be
-  // distinguished.
-  x.toString();
-  Expect.notEquals(plainJsString, Error.safeToString(x));
-  Expect.notEquals(unknownJsString, Error.safeToString(x));
-  Expect.notEquals(interceptorString, Error.safeToString(x));
-  // And not the native class constructor.
-  Expect.notEquals("Instance of 'RRRR'", Error.safeToString(x));
-  expectTypeName('Rascal', Error.safeToString(x));
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  testDistinctInterceptors();
-  testExternal();
-  testNative();
-}
diff --git a/tests/web_2/native/event_loop_test.dart b/tests/web_2/native/event_loop_test.dart
deleted file mode 100644
index 45f57ecfb23..00000000000
--- a/tests/web_2/native/event_loop_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "dart:async";
-import "package:async_helper/async_helper.dart";
-import "native_testing.dart";
-
-typedef void Callback0();
-
-@Native("A")
-class A {
-  foo(Callback0 f) native;
-}
-
-makeA() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-function A() {}
-A.prototype.foo = function(f) { return f(); };
-self.makeA = function() { return new A(); };
-self.nativeConstructor(A);
-})()""");
-  applyTestExtensions(['A']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  // Makes sure that we don't run the event-loop when we have a reentrant
-  // call from JS to Dart code.
-  // We start by setting up a microtask that should only run after main has
-  // finished. We then pass a closure into JavaScript. That closure is
-  // immediately invoked. Dart2js had a bug, that it would start the event-loop
-  // at this moment (a JS->Dart transition), and execute the scheduled
-  // microtask.
-
-  var events = [];
-  asyncStart();
-  var a = makeA();
-  new Future.microtask(() {
-    events.add("scheduleMicrotask");
-  }).whenComplete(asyncEnd);
-
-  Expect.equals(499, a.foo(() {
-    events.add("closure to foo");
-    return 499;
-  }));
-
-  events.add("after native call");
-  Expect.listEquals(["closure to foo", "after native call"], events);
-}
diff --git a/tests/web_2/native/fake_thing_2_test.dart b/tests/web_2/native/fake_thing_2_test.dart
deleted file mode 100644
index e1634c4922c..00000000000
--- a/tests/web_2/native/fake_thing_2_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-
-// Test that native objects cannot accidentally or maliciously be mistaken for
-// Dart objects.
-// The difference between fake_thing_test and fake_thing_2_test is the
-// presence of a used declared native class.
-
-class Thing {}
-
-@Native("NT")
-class NativeThing {}
-
-make1() native;
-make2() native;
-make3() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {}
-  A.prototype.$isThing = true;
-  self.make1 = function(){return new A()};
-  self.make2 = function(){return {$isThing: true}};
-  function NT() {}
-  NT.prototype.$isThing = true;
-  self.make3 = function(){return new NT()};
-
-  self.nativeConstructor(NT);
-})()""");
-  applyTestExtensions(['NT']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  var a = new Thing();
-  var b = make1();
-  var c = make2();
-  var d = make3();
-  Expect.isTrue(confuse(a) is Thing);
-  Expect.isFalse(confuse(b) is Thing);
-  Expect.isFalse(confuse(c) is Thing);
-  Expect.isFalse(confuse(d) is Thing);
-}
diff --git a/tests/web_2/native/fake_thing_test.dart b/tests/web_2/native/fake_thing_test.dart
deleted file mode 100644
index 5d83f941077..00000000000
--- a/tests/web_2/native/fake_thing_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-import "dart:_foreign_helper" show JS;
-
-// Test that native objects cannot accidentally or maliciously be mistaken for
-// Dart objects.
-
-// This test currently fails because we do not recognize the need for
-// interceptors without native *classes*.
-
-class Thing {}
-
-make1() native;
-make2() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {}
-  A.prototype.$isThing = true;
-  self.make1 = function(){return new A();};
-  self.make2 = function(){return {$isThing: true}};
-})()""");
-}
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-inscrutable(x) => x;
-
-main() {
-  setup();
-
-  var a = new Thing();
-  var b = make1();
-  var c = make2();
-  Expect.isTrue(inscrutable(a) is Thing);
-  Expect.isFalse(inscrutable(b) is Thing);
-  Expect.isFalse(inscrutable(c) is Thing);
-}
diff --git a/tests/web_2/native/field_type2_test.dart b/tests/web_2/native/field_type2_test.dart
deleted file mode 100644
index 113987f44d6..00000000000
--- a/tests/web_2/native/field_type2_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that a closure call on a native field is recognized by the
-// type inferrer.
-
-import 'native_testing.dart';
-
-@Native("Node")
-class Node {
-  get parentNode native;
-}
-
-makeNode(parent) native;
-
-void setup() {
-  JS('', r"""
-(function(){
-// This code is all inside 'setup' and so not accessible from the global scope.
-function Node(parent){ this.parentNode = parent; }
-self.makeNode = function(p){return new Node(p);};
-
-self.nativeConstructor(Node);
-})()""");
-  applyTestExtensions(['Node']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-  var node = makeNode(null);
-  if (node.parentNode != null) {
-    node = node.parentNode();
-  }
-}
diff --git a/tests/web_2/native/field_type_test.dart b/tests/web_2/native/field_type_test.dart
deleted file mode 100644
index c5b3be26041..00000000000
--- a/tests/web_2/native/field_type_test.dart
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// A native class has no defined constructor.
-// This regression test verifies that compiler accounts for hidden constructor
-// when analysing field values.
-
-import "native_testing.dart";
-
-@Native("Node")
-class Node {
-  Node get parentNode native;
-
-  ModelSource _modelSource; // If null, inherited from parent.
-
-  ModelSource get modelSource {
-    for (Node node = this; node != null; node = node.parentNode) {
-      ModelSource source = node._modelSource;
-      if (source != null) return source;
-    }
-    return null;
-  }
-
-  // Copy of above code renamed with suffix '2'.
-
-  ModelSource _modelSource2; // If null, inherited from parent.
-
-  ModelSource get modelSource2 {
-    for (Node node = this; node != null; node = node.parentNode) {
-      ModelSource source = node._modelSource2;
-      if (source != null) return source;
-    }
-    return null;
-  }
-}
-
-makeNode(parent) native;
-
-class ModelSource {
-  var name;
-  ModelSource(this.name);
-  toString() => 'ModelSource($name)';
-}
-
-void setup() {
-  JS('', r"""
-(function(){
-  // This code is inside 'setup' and so not accessible from the global scope.
-  function Node(parent){ this.parentNode = parent; }
-  self.makeNode = function(p){return new Node(p);};
-  self.nativeConstructor(Node);
-})()""");
-  applyTestExtensions(['Node']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  var n1 = makeNode(null);
-  var n2 = makeNode(n1);
-  var n3 = makeNode(n2);
-
-  var m1 = new ModelSource('1');
-  n2._modelSource = null; // null write.
-  n2._modelSource = m1; // Non-null write.
-  var x1 = n3.modelSource;
-  Expect.identical(m1, x1);
-
-  var m2 = new ModelSource('2');
-  n2._modelSource2 = m2; // The only write is non-null.
-  var x2 = n3.modelSource2;
-  Expect.identical(m2, x2);
-}
diff --git a/tests/web_2/native/fixup_get_tag_test.dart b/tests/web_2/native/fixup_get_tag_test.dart
deleted file mode 100644
index 4f5bbee270c..00000000000
--- a/tests/web_2/native/fixup_get_tag_test.dart
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Test for dartExperimentalFixupGetTag.
-
-@Native("A")
-class Foo {
-  // There is one native class with dispatch tag 'A'.
-  token() native;
-}
-
-void setup() {
-  JS('', r"""
-(function(){
-
-  dartExperimentalFixupGetTag = function (originalGetTag) {
-    function fixedGetTag(obj) {
-      // Local JS 'class' B is made to be another implementation of the native
-      // class with tag 'A'.
-      if (obj instanceof B) return 'A';
-      // Other classes behave as before.
-      return originalGetTag(obj);
-    }
-    return fixedGetTag;
-  };
-
-  function A(){ }
-  A.prototype.token = function () { return 'isA'; };
-
-  function B(){ }
-  B.prototype.token = function () { return 'isB'; };
-
-  self.makeA = function() { return new A(); };
-  self.makeB = function() { return new B(); };
-
-  self.nativeConstructor(A);
-})()""");
-  applyTestExtensions(['A']);
-}
-
-makeA() native;
-makeB() native;
-
-main() {
-  nativeTesting();
-  setup();
-
-  var a = makeA();
-  var b = makeB();
-
-  Expect.equals('isA', a.token());
-
-  // This call succeeds because the fixed-up 'getTag' method returns Foo's
-  // dispatch tag, and B is a faithful polyfil for Foo/A.
-  Expect.equals('isB', b.token());
-
-  Expect.isTrue(a is Foo);
-  Expect.isTrue(b is Foo);
-}
diff --git a/tests/web_2/native/foreign_test.dart b/tests/web_2/native/foreign_test.dart
deleted file mode 100644
index 3553d28f064..00000000000
--- a/tests/web_2/native/foreign_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-foreign1(var a, var b) {
-  return JS("num", r"# + #", a, b);
-}
-
-var called = false;
-callOnce() {
-  Expect.isFalse(called);
-  called = true;
-  return 499;
-}
-
-foreign2() {
-  var t = callOnce();
-  return JS("num", r"# + #", t, t);
-}
-
-foreign11(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11) {
-  return JS("num|String", r"# + # + # + # + # + # + # + # + # + # + #", a1, a2,
-      a3, a4, a5, a6, a7, a8, a9, a10, a11);
-}
-
-void main() {
-  Expect.equals(9, foreign1(4, 5));
-  Expect.equals(998, foreign2());
-  Expect.equals('1234567891011',
-      foreign11('1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11'));
-  // Ensure there will be isNaN and NaN variable names.
-  var isNaN = called ? 42 : 44;
-  var NaN = called ? 52 : 54;
-  Expect.isFalse(JS('bool', 'isNaN(#)', isNaN));
-  Expect.isFalse(JS('bool', 'isNaN(#)', NaN));
-  Expect.isTrue(JS('bool', 'isNaN(#)', double.nan));
-}
diff --git a/tests/web_2/native/hash_code_test.dart b/tests/web_2/native/hash_code_test.dart
deleted file mode 100644
index 6debbaec5fe..00000000000
--- a/tests/web_2/native/hash_code_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-
-@Native("A")
-class A {}
-
-@Native("B")
-class B {
-  int get hashCode => 1234567;
-}
-
-makeA() native;
-makeB() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {}
-  function B() {}
-  self.makeA = function(){return new A()};
-  self.makeB = function(){return new B()};
-
-  self.nativeConstructor(A);
-  self.nativeConstructor(B);
-})()""");
-  applyTestExtensions(['A', 'B']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-  Expect.isTrue(makeA().hashCode is int);
-  Expect.equals(1234567, makeB().hashCode);
-}
diff --git a/tests/web_2/native/is_check_test.dart b/tests/web_2/native/is_check_test.dart
deleted file mode 100644
index 13d2599ade7..00000000000
--- a/tests/web_2/native/is_check_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-
-@Native("A")
-class A {}
-
-main() {
-  JS('A', '(null)'); // Class 'A' appears to be created.
-  Expect.isFalse(confuse(new Object()) is A);
-}
diff --git a/tests/web_2/native/issue9182_test.dart b/tests/web_2/native/issue9182_test.dart
deleted file mode 100644
index 8b6f819e645..00000000000
--- a/tests/web_2/native/issue9182_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for Issue 9182.  The generative constructor body function
-// should not have the interceptor calling convention.
-
-import "native_testing.dart";
-
-@Native("A")
-class Foo {
-  factory Foo() => makeA();
-  // Ensure the instance method 'Bar' uses interceptor convention.
-  Bar() => 123;
-}
-
-class Bar {
-  var _x, _y;
-  // Generative constructor with body, having the same name as interceptor
-  // convention instance member.
-  Bar(x, y) {
-    _x = x;
-    _y = y;
-  }
-}
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A(){}
-  self.makeA = function() { return new A() };
-  self.nativeConstructor(A);
-})()""");
-  applyTestExtensions(['A']);
-}
-
-makeA() native;
-
-main() {
-  nativeTesting();
-  setup();
-
-  var foo = confuse(new Foo());
-  var bar = confuse(new Bar(30, 40));
-
-  Expect.equals(123, foo.Bar()); // Ensure that Foo.Bar is used.
-
-  Expect.equals(30, bar._x);
-  Expect.equals(40, bar._y);
-}
diff --git a/tests/web_2/native/js_const_test.dart b/tests/web_2/native/js_const_test.dart
deleted file mode 100644
index a119f54a681..00000000000
--- a/tests/web_2/native/js_const_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-import 'dart:_foreign_helper' show JS, JS_CONST;
-
-test1() {
-  var re = const JS_CONST(r'/-([\da-z])/ig');
-  var fToUpper =
-      const JS_CONST(r'function(_, letter){return letter.toUpperCase()}');
-  var s1 = '-hello-world';
-  var s2 = JS('String', r'#.replace(#, #)', s1, re, fToUpper);
-  Expect.equals('HelloWorld', s2);
-
-  s1 = 'hello-world';
-  s2 = JS('String', r'#.replace(#, #)', s1, re, fToUpper);
-  Expect.equals('helloWorld', s2);
-}
-
-main() {
-  test1();
-}
diff --git a/tests/web_2/native/js_constant_test.dart b/tests/web_2/native/js_constant_test.dart
deleted file mode 100644
index 1ff176aad24..00000000000
--- a/tests/web_2/native/js_constant_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-
-// Negative constant numbers must be generated as negation, not just a literal
-// with a sign, i.e.
-//
-//     (-5).toString()
-//
-// not
-//
-//     -5 .toString()
-//
-// The unparethesized version is `-(5 .toString())`, which creates the string
-// `"5"`, then converts it to a number for negation, giving a number result
-// instead of a string result.
-
-@pragma('dart2js:noInline')
-checkString(r) {
-  Expect.isTrue(
-      r is String, 'Expected string, found ${r} of type ${r.runtimeType}');
-}
-
-test1() {
-  checkString(JS('', '#.toString()', -5));
-}
-
-test2() {
-  checkString(JS('', '#.toString()', -1.5));
-}
-
-test3() {
-  checkString(JS('', '#.toString()', -0.0));
-}
-
-main() {
-  test1();
-  test2();
-  test3();
-}
diff --git a/tests/web_2/native/jsobject_test.dart b/tests/web_2/native/jsobject_test.dart
deleted file mode 100644
index 3631f854d6a..00000000000
--- a/tests/web_2/native/jsobject_test.dart
+++ /dev/null
@@ -1,109 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-import 'dart:_js_helper' show setNativeSubclassDispatchRecord;
-import 'dart:_interceptors'
-    show
-        JSObject, // The interface, which may be re-exported by a
-        // js-interop library.
-        LegacyJavaScriptObject, //   The interceptor abstract class.
-        PlainJavaScriptObject, //     The interceptor concrete class.
-        UnknownJavaScriptObject, //     The interceptor concrete class.
-        Interceptor;
-
-// Test for JavaScript objects from outside the Dart program.  Although we only
-// export the interface [JSObject] to user level code, this test makes sure we
-// can distinguish plain JavaScript objects from ones with a complex prototype.
-
-@Native('QQ')
-class Q {}
-
-makeA() native;
-makeB() native;
-makeQ() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-self.makeA = function(){return {hello: 123};};
-
-function BB(){}
-self.makeB = function(){return new BB();};
-
-function QQ(){}
-self.makeQ = function(){return new QQ();};
-
-self.nativeConstructor(QQ);
-})()""");
-  applyTestExtensions(['QQ']);
-}
-
-class Is<T> {
-  bool check(x) => x is T;
-}
-
-static_test() {
-  var x = makeA();
-  Expect.isTrue(x is JSObject);
-  Expect.isTrue(x is LegacyJavaScriptObject);
-  Expect.isTrue(x is PlainJavaScriptObject);
-  Expect.isTrue(x is! UnknownJavaScriptObject);
-  Expect.equals(JSObject, x.runtimeType);
-
-  x = makeB();
-  Expect.isTrue(x is JSObject);
-  Expect.isTrue(x is LegacyJavaScriptObject);
-  Expect.isTrue(x is! PlainJavaScriptObject);
-  Expect.isTrue(x is UnknownJavaScriptObject);
-  Expect.equals(JSObject, x.runtimeType);
-
-  x = makeQ();
-  Expect.isFalse(x is JSObject);
-  Expect.isFalse(x is LegacyJavaScriptObject);
-  Expect.isFalse(x is PlainJavaScriptObject);
-  Expect.isFalse(x is UnknownJavaScriptObject);
-  Expect.isFalse(x.runtimeType == JSObject);
-  Expect.isTrue(x is Q);
-}
-
-dynamic_test() {
-  var x = makeA();
-  var isJSObject = new Is<JSObject>().check;
-  var isLegacyJavaScriptObject = new Is<LegacyJavaScriptObject>().check;
-  var isPlainJavaScriptObject = new Is<PlainJavaScriptObject>().check;
-  var isUnknownJavaScriptObject = new Is<UnknownJavaScriptObject>().check;
-  var isQ = new Is<Q>().check;
-
-  Expect.isTrue(isJSObject(x));
-  Expect.isTrue(isLegacyJavaScriptObject(x));
-  Expect.isTrue(isPlainJavaScriptObject(x));
-  Expect.isTrue(!isUnknownJavaScriptObject(x));
-  Expect.equals(JSObject, x.runtimeType);
-
-  x = makeB();
-  Expect.isTrue(isJSObject(x));
-  Expect.isTrue(isLegacyJavaScriptObject(x));
-  Expect.isTrue(!isPlainJavaScriptObject(x));
-  Expect.isTrue(isUnknownJavaScriptObject(x));
-  Expect.equals(JSObject, x.runtimeType);
-
-  x = makeQ();
-  Expect.isFalse(isJSObject(x));
-  Expect.isFalse(isLegacyJavaScriptObject(x));
-  Expect.isFalse(isPlainJavaScriptObject(x));
-  Expect.isFalse(isUnknownJavaScriptObject(x));
-  Expect.isTrue(isQ(x));
-  Expect.isFalse(x.runtimeType == JSObject);
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  dynamic_test();
-  static_test();
-}
diff --git a/tests/web_2/native/load_elim_refinement_test.dart b/tests/web_2/native/load_elim_refinement_test.dart
deleted file mode 100644
index a4ed700c7bb..00000000000
--- a/tests/web_2/native/load_elim_refinement_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-
-class A {
-  int a;
-}
-
-class B extends A {
-  int b;
-}
-
-@pragma('dart2js:noInline')
-escape(v) {
-  g = v;
-}
-
-var g;
-
-main() {
-  g = new A();
-  var a = JS('returns:A;new:true', '(1,#)', new B());
-
-  a.a = 1;
-  if (a is B) {
-    escape(a); // Here we need to escape 'a' not the refinement of a to B.
-    g.a = 2;
-    Expect.equals(2, a.a);
-  }
-}
diff --git a/tests/web_2/native/name_conflict_test.dart b/tests/web_2/native/name_conflict_test.dart
deleted file mode 100644
index ef72d1c52d7..00000000000
--- a/tests/web_2/native/name_conflict_test.dart
+++ /dev/null
@@ -1,80 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test for correct hidden native class when abstract class has same name.
-
-library main;
-
-import 'dart:_js_helper';
-import 'dart:_foreign_helper' show JS;
-
-import 'native_testing.dart';
-
-// 'I' is the name of an abstract class and the name of the native class.
-
-abstract class I {
-  I read();
-  write(I x);
-}
-
-// Native impl has same name as abstract class.
-@Native("I")
-class Impl implements I {
-  Impl read() native;
-  write(I x) native;
-}
-
-makeI() => JS('creates:Impl; returns:I;', 'makeI()');
-
-void setup() {
-  JS('', r"""
-(function(){
-  // This code is all inside 'setup' and so not accessible from the global
-  // scope.
-  function I(){}
-  I.prototype.read = function() { return this._x; };
-  I.prototype.write = function(x) { this._x = x; };
-  self.makeI = function(){return new I()};
-  self.nativeConstructor(I);
-})()""");
-  applyTestExtensions(['I']);
-}
-
-// A pure Dart implementation of I.
-
-class ProxyI implements I {
-  ProxyI b;
-  ProxyI read() {
-    return b;
-  }
-
-  write(I x) {
-    b = x;
-  }
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  var a1 = makeI();
-  var a2 = makeI();
-  var b1 = new ProxyI();
-  var b2 = new ProxyI();
-  var ob = new Object();
-
-  Expect.isFalse(ob is I, 'ob is I');
-  Expect.isFalse(ob is ProxyI, 'ob is ProxyI');
-
-  Expect.isTrue(b1 is I, 'b1 is I');
-  Expect.isTrue(b1 is ProxyI, 'b1 is ProxyI');
-
-  Expect.isTrue(a1 is I, 'a1 is I');
-  Expect.isFalse(a1 is ProxyI, 'a1 is ProxyI');
-
-  Expect.isTrue(confuse(a1) is I, 'a1 is I');
-  Expect.isFalse(confuse(a1) is ProxyI, 'a1 is ProxyI');
-}
diff --git a/tests/web_2/native/native_call_arity1_frog_test.dart b/tests/web_2/native/native_call_arity1_frog_test.dart
deleted file mode 100644
index 35549c1e3ce..00000000000
--- a/tests/web_2/native/native_call_arity1_frog_test.dart
+++ /dev/null
@@ -1,90 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Test that native methods with unnamed* optional arguments are called with the
-// number of arguments in the call site.  This is necessary because native
-// methods can dispatch on the number of arguments.  Passing null or undefined
-// as the last argument is not the same as passing one fewer argument.
-//
-// * Optional positional arguments are passed in the correct position, so
-// require preceding arguments to be passed.
-
-@Native("A")
-class A {
-  int foo(int x) native;
-}
-
-@Native("B")
-class B {
-  int foo([x, y, z]) native;
-}
-
-// TODO(sra): Add a case where the parameters have default values.  Wait until
-// dart:html need non-null default values.
-
-A makeA() native;
-B makeB() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {}
-  A.prototype.foo = function () { return arguments.length; };
-
-  function B() {}
-  B.prototype.foo = function () { return arguments.length; };
-
-  self.makeA = function(){return new A()};
-  self.makeB = function(){return new B()};
-
-  self.nativeConstructor(A);
-  self.nativeConstructor(B);
-})()""");
-  applyTestExtensions(['A', 'B']);
-}
-
-testDynamicContext() {
-  var a = confuse(makeA());
-  var b = confuse(makeB());
-
-  Expect.throws(() => a.foo());
-  Expect.equals(1, a.foo(10));
-  Expect.throws(() => a.foo(10, 20));
-  Expect.throws(() => a.foo(10, 20, 30));
-
-  Expect.equals(0, b.foo());
-  Expect.equals(1, b.foo(10));
-  Expect.equals(2, b.foo(10, 20));
-  Expect.equals(3, b.foo(10, 20, 30));
-
-  Expect.throws(() => b.foo(10, 20, 30, 40));
-}
-
-testStaticContext() {
-  A a = makeA();
-  B b = makeB();
-
-  Expect.throws(() => (a as dynamic).foo());
-  Expect.equals(1, a.foo(10));
-  Expect.throws(() => (a as dynamic).foo(10, 20));
-  Expect.throws(() => (a as dynamic).foo(10, 20, 30));
-
-  Expect.equals(0, b.foo());
-  Expect.equals(1, b.foo(10));
-  Expect.equals(2, b.foo(10, 20));
-  Expect.equals(3, b.foo(10, 20, 30));
-
-  Expect.throws(() => (b as dynamic).foo(10, 20, 30, 40));
-}
-
-main() {
-  nativeTesting();
-  setup();
-  testDynamicContext();
-  testStaticContext();
-}
diff --git a/tests/web_2/native/native_call_arity2_frog_test.dart b/tests/web_2/native/native_call_arity2_frog_test.dart
deleted file mode 100644
index 7be11523722..00000000000
--- a/tests/web_2/native/native_call_arity2_frog_test.dart
+++ /dev/null
@@ -1,101 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// This is a similar test to NativeCallArity1FrogTest, but makes sure
-// that subclasses also get the right number of arguments.
-
-@Native("A")
-class A {
-  int foo([x, y]) native;
-}
-
-@Native("B")
-class B extends A {
-  int foo([x, y]) native;
-}
-
-makeA() native;
-makeB() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function inherits(child, parent) {
-    if (child.prototype.__proto__) {
-      child.prototype.__proto__ = parent.prototype;
-    } else {
-      function tmp() {};
-      tmp.prototype = parent.prototype;
-      child.prototype = new tmp();
-      child.prototype.constructor = child;
-    }
-  }
-  function A() {}
-  A.prototype.foo = function () { return arguments.length; };
-
-  function B() {}
-  B.prototype.foo = function () { return arguments.length; };
-  inherits(B, A);
-
-  self.makeA = function(){return new A()};
-  self.makeB = function(){return new B()};
-
-  self.nativeConstructor(A);
-  self.nativeConstructor(B);
-})()""");
-  applyTestExtensions(['A', 'B']);
-}
-
-testDynamicContext() {
-  var a = confuse(makeA());
-  var b = confuse(makeB());
-
-  Expect.equals(0, a.foo());
-  Expect.equals(1, a.foo(10));
-  Expect.equals(2, a.foo(10, 20));
-  Expect.throws(() => a.foo(10, 20, 30));
-
-  Expect.equals(1, a.foo(10));
-  Expect.equals(2, a.foo(null, 20));
-  Expect.throws(() => a.foo(10, 20, 30));
-
-  Expect.equals(0, b.foo());
-  Expect.equals(1, b.foo(10));
-  Expect.equals(2, b.foo(10, 20));
-  Expect.throws(() => b.foo(10, 20, 30));
-
-  Expect.equals(1, b.foo(10));
-  Expect.equals(2, b.foo(null, 20));
-  Expect.throws(() => b.foo(10, 20, 30));
-}
-
-testStaticContext() {
-  A a = makeA();
-  B b = makeB();
-
-  Expect.equals(0, a.foo());
-  Expect.equals(1, a.foo(10));
-  Expect.equals(2, a.foo(10, 20));
-
-  Expect.equals(1, a.foo(10));
-  Expect.equals(2, a.foo(null, 20));
-
-  Expect.equals(0, b.foo());
-  Expect.equals(1, b.foo(10));
-  Expect.equals(2, b.foo(10, 20));
-
-  Expect.equals(1, b.foo(10));
-  Expect.equals(2, b.foo(null, 20));
-}
-
-main() {
-  nativeTesting();
-  setup();
-  testDynamicContext();
-  testStaticContext();
-}
diff --git a/tests/web_2/native/native_call_arity3_frog_test.dart b/tests/web_2/native/native_call_arity3_frog_test.dart
deleted file mode 100644
index bf4435c6061..00000000000
--- a/tests/web_2/native/native_call_arity3_frog_test.dart
+++ /dev/null
@@ -1,88 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Test similar to NativeCallArity1FrogTest, but with default values to
-// parameters set to null. These parameters should be treated as if they
-// do not have a default value for the native methods.
-
-@Native("A")
-class A {
-  int foo(int x) native;
-}
-
-@Native("B")
-class B {
-  int foo([x = null, y, z = null]) native;
-}
-
-// TODO(sra): Add a case where the parameters have default values.  Wait until
-// dart:html need non-null default values.
-
-A makeA() native;
-B makeB() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {}
-  A.prototype.foo = function () { return arguments.length; };
-
-  function B() {}
-  B.prototype.foo = function () { return arguments.length; };
-
-  self.makeA = function(){return new A();};
-  self.makeB = function(){return new B();};
-
-  self.nativeConstructor(A);
-  self.nativeConstructor(B);
-})()""");
-  applyTestExtensions(['A', 'B']);
-}
-
-testDynamicContext() {
-  var a = confuse(makeA());
-  var b = confuse(makeB());
-
-  Expect.throws(() => a.foo());
-  Expect.equals(1, a.foo(10));
-  Expect.throws(() => a.foo(10, 20));
-  Expect.throws(() => a.foo(10, 20, 30));
-
-  Expect.equals(0, b.foo());
-  Expect.equals(1, b.foo(10));
-  Expect.equals(2, b.foo(10, 20));
-  Expect.equals(3, b.foo(10, 20, 30));
-
-  Expect.equals(1, b.foo(10));
-  Expect.equals(2, b.foo(null, 20));
-  Expect.equals(3, b.foo(null, null, 30));
-  Expect.throws(() => b.foo(10, 20, 30, 40));
-}
-
-testStaticContext() {
-  A a = makeA();
-  B b = makeB();
-
-  Expect.equals(1, a.foo(10));
-
-  Expect.equals(0, b.foo());
-  Expect.equals(1, b.foo(10));
-  Expect.equals(2, b.foo(10, 20));
-  Expect.equals(3, b.foo(10, 20, 30));
-
-  Expect.equals(1, b.foo(10));
-  Expect.equals(2, b.foo(null, 20));
-  Expect.equals(3, b.foo(null, null, 30));
-}
-
-main() {
-  nativeTesting();
-  setup();
-  testDynamicContext();
-  testStaticContext();
-}
diff --git a/tests/web_2/native/native_checked_arguments1_frog_test.dart b/tests/web_2/native/native_checked_arguments1_frog_test.dart
deleted file mode 100644
index 23fcc3452c4..00000000000
--- a/tests/web_2/native/native_checked_arguments1_frog_test.dart
+++ /dev/null
@@ -1,118 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-
-// Test that type checks occur on native methods.
-
-@Native("A")
-class A {
-  int foo(int x) native;
-  int cmp(A other) native;
-}
-
-@Native("B")
-class B {
-  String foo(String x) native;
-  int cmp(B other) native;
-}
-
-A makeA() native;
-B makeB() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {}
-  A.prototype.foo = function (x) { return x + 1; };
-  A.prototype.cmp = function (x) { return 0; };
-
-  function B() {}
-  B.prototype.foo = function (x) { return x + 'ha!'; };
-  B.prototype.cmp = function (x) { return 1; };
-
-  self.makeA = function(){return new A()};
-  self.makeB = function(){return new B()};
-
-  self.nativeConstructor(A);
-  self.nativeConstructor(B);
-})()""");
-  applyTestExtensions(['A', 'B']);
-}
-
-expectThrows(action()) {
-  bool threw = false;
-  try {
-    action();
-  } catch (e) {
-    threw = true;
-  }
-  Expect.isTrue(threw);
-}
-
-complianceModeTest() {
-  var things = <dynamic>[makeA(), makeB()];
-  var a = things[0];
-  var b = things[1];
-
-  Expect.equals(124, a.foo(123));
-  expectThrows(() => a.foo('xxx'));
-
-  Expect.equals('helloha!', b.foo('hello'));
-  expectThrows(() => b.foo(123));
-
-  Expect.equals(0, a.cmp(a));
-  expectThrows(() => a.cmp(b));
-  expectThrows(() => a.cmp(5));
-
-  Expect.equals(1, b.cmp(b));
-  expectThrows(() => b.cmp(a));
-  expectThrows(() => b.cmp(5));
-}
-
-omitImplicitChecksModeTest() {
-  var things = <dynamic>[makeA(), makeB()];
-  var a = things[0];
-  var b = things[1];
-
-  Expect.equals(124, a.foo(123));
-  Expect.equals('xxx1', a.foo('xxx'));
-
-  Expect.equals('helloha!', b.foo('hello'));
-  Expect.equals('123ha!', b.foo(123));
-
-  Expect.equals(0, a.cmp(a));
-  Expect.equals(0, a.cmp(b));
-  Expect.equals(0, a.cmp(5));
-
-  Expect.equals(1, b.cmp(b));
-  Expect.equals(1, b.cmp(a));
-  Expect.equals(1, b.cmp(5));
-}
-
-bool isComplianceMode() {
-  var stuff = <dynamic>[1, 'string'];
-  dynamic a = stuff[0];
-  // compliance-mode detection.
-  try {
-    String s = a;
-    return false;
-  } catch (e) {
-    // Ignore.
-  }
-  return true;
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  if (isComplianceMode()) {
-    complianceModeTest();
-  } else {
-    omitImplicitChecksModeTest();
-  }
-}
diff --git a/tests/web_2/native/native_checked_fields_frog_test.dart b/tests/web_2/native/native_checked_fields_frog_test.dart
deleted file mode 100644
index df76fdb65a9..00000000000
--- a/tests/web_2/native/native_checked_fields_frog_test.dart
+++ /dev/null
@@ -1,102 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-
-// Test that type checks occur on assignment to fields of native methods.
-
-@Native("A")
-class A {
-  int foo;
-}
-
-@Native("B")
-class B {
-  String foo;
-}
-
-A makeA() native;
-B makeB() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {}
-
-  function B() {}
-
-  self.makeA = function(){return new A()};
-  self.makeB = function(){return new B()};
-
-  self.nativeConstructor(A);
-  self.nativeConstructor(B);
-})()""");
-  applyTestExtensions(['A', 'B']);
-}
-
-expectThrows(action()) {
-  bool threw = false;
-  try {
-    action();
-  } catch (e) {
-    threw = true;
-  }
-  Expect.isTrue(threw);
-}
-
-complianceModeTest() {
-  var things = <dynamic>[makeA(), makeB()];
-  var a = things[0];
-  var b = things[1];
-
-  a.foo = 123;
-  expectThrows(() => a.foo = 'xxx');
-  Expect.equals(123, a.foo);
-
-  b.foo = 'hello';
-  expectThrows(() => b.foo = 123);
-  Expect.equals('hello', b.foo);
-}
-
-omitImplicitChecksTest() {
-  var things = <dynamic>[makeA(), makeB()];
-  var a = things[0];
-  var b = things[1];
-
-  a.foo = 123;
-  Expect.equals(123, a.foo);
-  a.foo = 'xxx';
-  Expect.equals('xxx', a.foo);
-
-  b.foo = 'hello';
-  Expect.equals('hello', b.foo);
-  b.foo = 123;
-  Expect.equals(b.foo, 123);
-}
-
-bool isComplianceMode() {
-  var stuff = [1, 'string'];
-  var a = stuff[0];
-  // Detect whether we are using --omit-implicit-checks.
-  try {
-    String s = a;
-    return false;
-  } catch (e) {
-    // Ignore.
-  }
-  return true;
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  if (isComplianceMode()) {
-    complianceModeTest();
-  } else {
-    omitImplicitChecksTest();
-  }
-}
diff --git a/tests/web_2/native/native_class_avoids_hidden_name_frog_test.dart b/tests/web_2/native/native_class_avoids_hidden_name_frog_test.dart
deleted file mode 100644
index d1838076051..00000000000
--- a/tests/web_2/native/native_class_avoids_hidden_name_frog_test.dart
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Test that hidden native class names are not used by generated code.
-
-@Native("BB")
-class AA {
-  get name => 'AA';
-  static AA create() => makeA();
-}
-
-@Native("CC")
-class BB {
-  get name => 'BB';
-  static BB create() => makeB();
-}
-
-class CC {
-  // Ordinary class with name clashing with native class.
-  get name => 'CC';
-  static CC create() => new CC();
-}
-
-makeA() native;
-makeB() native;
-
-void setup1() {
-  JS('', r"""
-(function(){
-  // Poison hidden native names 'BB' and 'CC' to prove the compiler didn't place
-  // anything on the hidden native class.
-  BB = null;
-  CC = null;
-})()""");
-  applyTestExtensions(['BB', 'CC']);
-}
-
-void setup2() {
-  JS('', r"""
-(function(){
-  // This code is inside 'setup' and so not accessible from the global scope.
-  function BB(){}
-  function CC(){}
-  self.makeA = function(){return new BB()};  // AA is native "BB"
-  self.makeB = function(){return new CC()};  // BB is native "CC"
-  self.nativeConstructor(BB);
-  self.nativeConstructor(CC);
-})()""");
-}
-
-main() {
-  nativeTesting();
-  setup1();
-  setup2();
-
-  var a = confuse(AA.create());
-  var b = confuse(BB.create());
-  var c = confuse(CC.create());
-
-  Expect.equals('AA', a.name);
-  Expect.equals('BB', b.name);
-  Expect.equals('CC', c.name);
-}
diff --git a/tests/web_2/native/native_class_fields_2_test.dart b/tests/web_2/native/native_class_fields_2_test.dart
deleted file mode 100644
index 1d11429260c..00000000000
--- a/tests/web_2/native/native_class_fields_2_test.dart
+++ /dev/null
@@ -1,176 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Verify that methods are not renamed to clash with native field names
-// that are known from the DOM (like x, y, z).
-@Native("A")
-class A {
-  int x;
-  int y;
-  int z;
-  int gettersCalled;
-}
-
-void setup() {
-  JS('', r"""
-(function(){
-  function getter() {
-    this.gettersCalled++;
-    return 42;
-  }
-
-  function A(){
-    var a = Object.create(
-        { constructor: A },
-        { x: { get: getter, configurable: false, writeable: false },
-          y: { get: getter, configurable: false, writeable: false },
-          z: { get: getter, configurable: false, writeable: false }
-        });
-    a.gettersCalled = 0;
-    return a;
-  }
-
-  self.makeA = function() { return new A(); };
-  self.nativeConstructor(A);
-})()""");
-  applyTestExtensions(['A']);
-}
-
-A makeA() native;
-
-class B {
-  void a() {}
-  void a0() {}
-  void a1() {}
-  void a2() {}
-  void a3() {}
-  void a4() {}
-  void a5() {}
-  void a6() {}
-  void a7() {}
-  void a8() {}
-  void a9() {}
-  void a10() {}
-  void a11() {}
-  void a12() {}
-  void a13() {}
-  void a14() {}
-  void a15() {}
-  void a16() {}
-  void a17() {}
-  void a18() {}
-  void a19() {}
-  void a20() {}
-  void a21() {}
-  void a22() {}
-  void a23() {}
-  void a24() {}
-  void a25() {}
-  void a26() {}
-  int z = 0;
-}
-
-int inscrutable(int x) => x == 0 ? 0 : x | inscrutable(x & (x - 1));
-
-main() {
-  nativeTesting();
-  setup();
-  confuse(new B()).a();
-  var x = confuse(makeA());
-  // Each of these will throw, because an instance of A doesn't have any of
-  // these functions.  The important thing is that none of them have been
-  // renamed to be called 'z' by the minifier, because then the getter will be
-  // hit.
-  try {
-    x.a();
-  } catch (e) {}
-  try {
-    x.a0();
-  } catch (e) {}
-  try {
-    x.a1();
-  } catch (e) {}
-  try {
-    x.a2();
-  } catch (e) {}
-  try {
-    x.a3();
-  } catch (e) {}
-  try {
-    x.a4();
-  } catch (e) {}
-  try {
-    x.a5();
-  } catch (e) {}
-  try {
-    x.a6();
-  } catch (e) {}
-  try {
-    x.a7();
-  } catch (e) {}
-  try {
-    x.a8();
-  } catch (e) {}
-  try {
-    x.a9();
-  } catch (e) {}
-  try {
-    x.a10();
-  } catch (e) {}
-  try {
-    x.a11();
-  } catch (e) {}
-  try {
-    x.a12();
-  } catch (e) {}
-  try {
-    x.a13();
-  } catch (e) {}
-  try {
-    x.a14();
-  } catch (e) {}
-  try {
-    x.a15();
-  } catch (e) {}
-  try {
-    x.a16();
-  } catch (e) {}
-  try {
-    x.a17();
-  } catch (e) {}
-  try {
-    x.a18();
-  } catch (e) {}
-  try {
-    x.a19();
-  } catch (e) {}
-  try {
-    x.a20();
-  } catch (e) {}
-  try {
-    x.a21();
-  } catch (e) {}
-  try {
-    x.a12();
-  } catch (e) {}
-  try {
-    x.a23();
-  } catch (e) {}
-  try {
-    x.a24();
-  } catch (e) {}
-  try {
-    x.a25();
-  } catch (e) {}
-  try {
-    x.a26();
-  } catch (e) {}
-  Expect.equals(0, x.gettersCalled);
-  Expect.equals(42, x.z);
-  Expect.equals(1, x.gettersCalled);
-}
diff --git a/tests/web_2/native/native_class_fields_3_test.dart b/tests/web_2/native/native_class_fields_3_test.dart
deleted file mode 100644
index 98791e95c1a..00000000000
--- a/tests/web_2/native/native_class_fields_3_test.dart
+++ /dev/null
@@ -1,109 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Verify that we can have fields with names that start with g and s even
-// though those names are reserved for getters and setters in minified mode.
-
-// Note: this works because end and send are both in the list of
-// reservedNativeProperties.  In general we don't check arbitrary
-// names for clashes because it's hard - subclasses can force superclasses
-// to rename getters, and that can force unrelated classes to change their
-// getters too if they have a property that has the same name.
-@Native("A")
-class A {
-  int bar;
-  int g;
-  int s;
-  int end;
-  int gend;
-  int send;
-  int gettersCalled;
-  int settersCalled;
-}
-
-void setup() {
-  JS('', r"""
-(function(){
-  function getter() {
-    this.gettersCalled++;
-    return 42;
-  }
-
-  function setter(x) {
-    this.settersCalled++;
-    return 314;
-  }
-
-  var descriptor = {
-      get: getter,
-      set: setter,
-      configurable: false,
-      writeable: false
-  };
-
-  function A(){
-    var a = Object.create(
-        { constructor: A },
-        { bar: descriptor,
-          g: descriptor,
-          s: descriptor,
-          end: descriptor,
-          gend: descriptor,
-          send: descriptor
-        });
-    a.gettersCalled = 0;
-    a.settersCalled = 0;
-    return a;
-  }
-
-  self.makeA = function() { return new A(); };
-  self.nativeConstructor(A);
-})()""");
-  applyTestExtensions(['A']);
-}
-
-A makeA() native;
-
-class B {}
-
-main() {
-  nativeTesting();
-  setup();
-  confuse(new B());
-  var a = makeA();
-
-  Expect.equals(42, confuse(a).bar);
-  Expect.equals(42, confuse(a).g);
-  Expect.equals(42, confuse(a).s);
-  Expect.equals(42, confuse(a).end);
-  Expect.equals(42, confuse(a).gend);
-  Expect.equals(42, confuse(a).send);
-  Expect.equals(271, confuse(a).bar = 271);
-  Expect.equals(271, confuse(a).g = 271);
-  Expect.equals(271, confuse(a).s = 271);
-  Expect.equals(271, confuse(a).end = 271);
-  Expect.equals(271, confuse(a).gend = 271);
-  Expect.equals(271, confuse(a).send = 271);
-  Expect.equals(6, confuse(a).gettersCalled);
-  Expect.equals(6, confuse(a).settersCalled);
-
-  Expect.equals(42, a.bar);
-  Expect.equals(42, a.g);
-  Expect.equals(42, a.s);
-  Expect.equals(42, a.end);
-  Expect.equals(42, a.gend);
-  Expect.equals(42, a.send);
-  Expect.equals(271, a.bar = 271);
-  Expect.equals(271, a.g = 271);
-  Expect.equals(271, a.s = 271);
-  Expect.equals(271, a.end = 271);
-  Expect.equals(271, a.gend = 271);
-  Expect.equals(271, a.send = 271);
-  Expect.equals(12, a.gettersCalled);
-  Expect.equals(12, a.settersCalled);
-}
diff --git a/tests/web_2/native/native_class_fields_test.dart b/tests/web_2/native/native_class_fields_test.dart
deleted file mode 100644
index 12399043c67..00000000000
--- a/tests/web_2/native/native_class_fields_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Verify that native fields on classes are not renamed by the minifier.
-@Native("A")
-class A {
-  int myLongPropertyName;
-  int getValue;
-
-  int method(int z) => myLongPropertyName;
-}
-
-void setup() {
-  JS('', r"""
-(function(){
-function getter() {
-  return ++this.getValue;
-}
-
-function setter(x) {
-  this.getValue += 10;
-}
-
-function A(){
-  var a = Object.create(
-      { constructor: A},
-      { myLongPropertyName: { get: getter,
-                              set: setter,
-                              configurable: false,
-                              writeable: false
-                            }
-      });
-  a.getValue = 0;
-  return a;
-}
-
-makeA = function(){return new A()};
-self.nativeConstructor(A);
-})()""");
-  applyTestExtensions(['A']);
-}
-
-A makeA() native;
-
-main() {
-  nativeTesting();
-  setup();
-  var a = makeA();
-  a.myLongPropertyName = 21;
-  int gotten = a.myLongPropertyName;
-  Expect.equals(11, gotten);
-
-  // Force interceptor dispatch.
-  confuse(a).myLongPropertyName = 99;
-  gotten = confuse(a).myLongPropertyName;
-  Expect.equals(22, gotten);
-
-  var a2 = makeA();
-  if (a2 is A) {
-    // Inside this 'if' the compiler knows that a2 is an A, so it is tempted
-    // to access myLongPropertyName directly, using its minified name.  But
-    // renaming of native properties can only work using getters and setters
-    // that access the original name.
-    a2.myLongPropertyName = 21;
-    int gotten = a2.myLongPropertyName;
-    Expect.equals(11, gotten);
-  }
-}
diff --git a/tests/web_2/native/native_class_inheritance1_frog_test.dart b/tests/web_2/native/native_class_inheritance1_frog_test.dart
deleted file mode 100644
index e527e3e2c9b..00000000000
--- a/tests/web_2/native/native_class_inheritance1_frog_test.dart
+++ /dev/null
@@ -1,117 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Test to see if resolving a hidden native class's method interferes with
-// subsequent resolving the subclass's method.  This might happen if the
-// superclass caches the method in the prototype, so shadowing the dispatcher
-// stored on Object.prototype.
-
-// Version 1: It might be possible to call foo directly.
-@Native("A1")
-class A1 {
-  foo() native;
-}
-
-@Native("B1")
-class B1 extends A1 {
-  foo() native;
-}
-
-makeA1() native;
-makeB1() native;
-
-// Version 2: foo needs some kind of trampoline.
-@Native("A2")
-class A2 {
-  foo([a = 99]) native;
-}
-
-@Native("B2")
-class B2 extends A2 {
-  foo([z = 1000]) native;
-}
-
-makeA2() native;
-makeB2() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  // This code is inside 'setup' and so not accessible from the global scope.
-  function inherits(child, parent) {
-    if (child.prototype.__proto__) {
-      child.prototype.__proto__ = parent.prototype;
-    } else {
-      function tmp() {};
-      tmp.prototype = parent.prototype;
-      child.prototype = new tmp();
-      child.prototype.constructor = child;
-    }
-  }
-  function A1(){}
-  function B1(){}
-  inherits(B1, A1);
-  A1.prototype.foo = function(){return 100;};
-  B1.prototype.foo = function(){return 200;};
-
-  self.makeA1 = function(){return new A1()};
-  self.makeB1 = function(){return new B1()};
-
-  function A2(){}
-  function B2(){}
-  inherits(B2, A2);
-  A2.prototype.foo = function(a){return a + 10000;};
-  B2.prototype.foo = function(z){return z + 20000;};
-
-  self.makeA2 = function(){return new A2()};
-  self.makeB2 = function(){return new B2()};
-
-  self.nativeConstructor(A1);
-  self.nativeConstructor(A2);
-  self.nativeConstructor(B1);
-  self.nativeConstructor(B2);
-})()""");
-  applyTestExtensions(['A1', 'A2', 'B1', 'B2']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  var a1 = makeA1();
-  var b1 = makeB1();
-  Expect.equals(100, a1.foo());
-  Expect.equals(200, b1.foo());
-
-  var a2 = makeA2();
-  var b2 = makeB2();
-  Expect.equals(10000 + 99, a2.foo());
-  Expect.equals(20000 + 1000, b2.foo());
-
-  Expect.equals(10000 + 1, a2.foo(1));
-  Expect.equals(20000 + 2, b2.foo(2));
-
-  bool caught = false;
-  try {
-    a1.foo(20);
-  } catch (ex) {
-    caught = true;
-    Expect.isTrue(ex is NoSuchMethodError);
-  }
-  Expect.isTrue(caught, 'a1.foo(20) should throw');
-
-  caught = false;
-  try {
-    dynamic x = 123;
-    x.foo(20);
-  } catch (ex) {
-    caught = true;
-    Expect.isTrue(ex is NoSuchMethodError);
-  }
-  Expect.isTrue(caught, "x.foo(20) should throw");
-}
diff --git a/tests/web_2/native/native_class_inheritance2_frog_test.dart b/tests/web_2/native/native_class_inheritance2_frog_test.dart
deleted file mode 100644
index 489502c7459..00000000000
--- a/tests/web_2/native/native_class_inheritance2_frog_test.dart
+++ /dev/null
@@ -1,93 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Test to see if resolving a hidden native class's method interferes with
-// subsequent resolving the subclass's method.  This might happen if the
-// superclass caches the method in the prototype, so shadowing the dispatcher
-// stored on Object.prototype.
-
-@Native("A")
-class A {
-  foo([a = 100]) native;
-}
-
-@Native("B")
-class B extends A {}
-
-@Native("C")
-class C extends B {
-  foo([z = 300]) native;
-}
-
-@Native("D")
-class D extends C {}
-
-makeA() native;
-makeB() native;
-makeC() native;
-makeD() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  // This code is inside 'setup' and so not accessible from the global scope.
-  function inherits(child, parent) {
-    if (child.prototype.__proto__) {
-      child.prototype.__proto__ = parent.prototype;
-    } else {
-      function tmp() {};
-      tmp.prototype = parent.prototype;
-      child.prototype = new tmp();
-      child.prototype.constructor = child;
-    }
-  }
-
-  function A(){}
-  function B(){}
-  inherits(B, A);
-  function C(){}
-  inherits(C, B);
-  function D(){}
-  inherits(D, C);
-
-  A.prototype.foo = function(a){return 'A.foo(' + a + ')'};
-  C.prototype.foo = function(z){return 'C.foo(' + z + ')'};
-
-  self.makeA = function(){return new A()};
-  self.makeB = function(){return new B()};
-  self.makeC = function(){return new C()};
-  self.makeD = function(){return new D()};
-
-  self.nativeConstructor(A);
-  self.nativeConstructor(B);
-  self.nativeConstructor(C);
-  self.nativeConstructor(D);
-})()""");
-  applyTestExtensions(['A', 'B', 'C', 'D']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  var a = makeA();
-  var b = makeB();
-  var c = makeC();
-  var d = makeD();
-
-  Expect.equals('A.foo(100)', b.foo());
-  Expect.equals('C.foo(300)', d.foo());
-  // If the above line fails with C.foo(100) then the dispatch to fill in the
-  // default got the wrong one, followed by a second dispatch that resolved to
-  // the correct native method.
-
-  Expect.equals('A.foo(1)', a.foo(1));
-  Expect.equals('A.foo(2)', b.foo(2));
-  Expect.equals('C.foo(3)', c.foo(3));
-  Expect.equals('C.foo(4)', d.foo(4));
-}
diff --git a/tests/web_2/native/native_class_inheritance3_frog_test.dart b/tests/web_2/native/native_class_inheritance3_frog_test.dart
deleted file mode 100644
index 73834f47d15..00000000000
--- a/tests/web_2/native/native_class_inheritance3_frog_test.dart
+++ /dev/null
@@ -1,109 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Test to see if resolving a hidden native class's method to noSuchMethod
-// interferes with subsequent resolving of the method.  This might happen if the
-// noSuchMethod is cached on Object.prototype.
-
-@Native("A1")
-class A1 {}
-
-@Native("B1")
-class B1 extends A1 {}
-
-makeA1() native;
-makeB1() native;
-
-@Native("A2")
-class A2 {
-  foo([a = 99]) native;
-}
-
-@Native("B2")
-class B2 extends A2 {}
-
-makeA2() native;
-makeB2() native;
-
-makeObject() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  // This code is inside 'setup' and so not accessible from the global scope.
-  function inherits(child, parent) {
-    if (child.prototype.__proto__) {
-      child.prototype.__proto__ = parent.prototype;
-    } else {
-      function tmp() {};
-      tmp.prototype = parent.prototype;
-      child.prototype = new tmp();
-      child.prototype.constructor = child;
-    }
-  }
-  function A1(){}
-  function B1(){}
-  inherits(B1, A1);
-
-  self.makeA1 = function(){return new A1()};
-  self.makeB1 = function(){return new B1()};
-
-  function A2(){}
-  function B2(){}
-  inherits(B2, A2);
-  A2.prototype.foo = function(a){return 'A2.foo(' + a  + ')';};
-
-  self.makeA2 = function(){return new A2()};
-  self.makeB2 = function(){return new B2()};
-
-  self.makeObject = function(){return new Object()};
-
-  self.nativeConstructor(A1);
-  self.nativeConstructor(A2);
-  self.nativeConstructor(B1);
-  self.nativeConstructor(B2);
-})()""");
-  applyTestExtensions(['A1', 'A2', 'B1', 'B2']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  var a1 = makeA1();
-  var b1 = makeB1();
-  var ob = makeObject();
-
-  // Does calling missing methods in one tree of inheritance forest affect other
-  // trees?
-  expectNoSuchMethod(() => b1.foo(), 'b1.foo()');
-  expectNoSuchMethod(() => a1.foo(), 'a1.foo()');
-  expectNoSuchMethod(() => ob.foo(), 'ob.foo()');
-
-  var a2 = makeA2();
-  var b2 = makeB2();
-
-  Expect.equals('A2.foo(99)', a2.foo());
-  Expect.equals('A2.foo(99)', b2.foo());
-  Expect.equals('A2.foo(1)', a2.foo(1));
-  Expect.equals('A2.foo(2)', b2.foo(2));
-
-  expectNoSuchMethod(() => b1.foo(3), 'b1.foo(3)');
-  expectNoSuchMethod(() => a1.foo(4), 'a1.foo(4)');
-}
-
-expectNoSuchMethod(action, note) {
-  bool caught = false;
-  try {
-    action();
-  } catch (ex) {
-    caught = true;
-    Expect.isTrue(ex is NoSuchMethodError, note);
-  }
-  Expect.isTrue(caught, note);
-}
diff --git a/tests/web_2/native/native_class_inheritance4_frog_test.dart b/tests/web_2/native/native_class_inheritance4_frog_test.dart
deleted file mode 100644
index b83b8e115d4..00000000000
--- a/tests/web_2/native/native_class_inheritance4_frog_test.dart
+++ /dev/null
@@ -1,163 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Additional Dart code may be 'placed on' hidden native classes.  With
-// inheritance, the superclass method must not be reached by a call on the
-// subclass.
-
-@Native("A")
-class A {
-  var _field;
-
-  int get X => _field;
-  void set X(int x) {
-    _field = x;
-  }
-
-  int method(int z) => _field + z;
-}
-
-@Native("B")
-class B extends A {
-  var _field2;
-
-  int get X => _field2;
-  void set X(int x) {
-    _field2 = x;
-  }
-
-  int method(int z) => _field2 + z;
-}
-
-A makeA() native;
-B makeB() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function inherits(child, parent) {
-    if (child.prototype.__proto__) {
-      child.prototype.__proto__ = parent.prototype;
-    } else {
-      function tmp() {};
-      tmp.prototype = parent.prototype;
-      child.prototype = new tmp();
-      child.prototype.constructor = child;
-    }
-  }
-
-  function A(){}
-  function B(){}
-  inherits(B, A);
-  self.makeA = function(){return new A()};
-  self.makeB = function(){return new B()};
-
-  self.nativeConstructor(A);
-  self.nativeConstructor(B);
-})()""");
-  applyTestExtensions(['A', 'B']);
-}
-
-testBasicA_dynamic() {
-  setup(); // Fresh constructors.
-
-  var a = [makeA()][0];
-
-  a.X = 100;
-  Expect.equals(100, a._field);
-  Expect.equals(100, a.X);
-  Expect.equals(150, a.method(50));
-}
-
-testBasicA_typed() {
-  setup(); // Fresh constructors.
-
-  A a = makeA();
-
-  a.X = 100;
-  Expect.equals(100, a._field);
-  Expect.equals(100, a.X);
-  Expect.equals(150, a.method(50));
-}
-
-testBasicB_dynamic() {
-  setup(); // Fresh constructors.
-
-  var b = [makeB()][0];
-
-  b._field = 1;
-  b.X = 123;
-  Expect.equals(1, b._field);
-  Expect.equals(123, b._field2);
-  Expect.equals(123, b.X);
-  Expect.equals(200, b.method(77));
-}
-
-testBasicB_typed() {
-  setup(); // Fresh constructors.
-
-  B b = makeB();
-
-  b._field = 1;
-  b.X = 123;
-  Expect.equals(1, b._field);
-  Expect.equals(123, b._field2);
-  Expect.equals(123, b.X);
-  Expect.equals(200, b.method(77));
-}
-
-testAB_dynamic() {
-  setup(); // Fresh constructors.
-
-  var things = <dynamic>[makeA(), makeB()];
-  var a = things[0];
-  var b = things[1];
-
-  a.X = 100;
-  Expect.equals(100, a._field);
-  Expect.equals(100, a.X);
-  Expect.equals(150, a.method(50));
-
-  b._field = 1;
-  b._field2 = 2;
-  b.X = 123;
-  Expect.equals(1, b._field);
-  Expect.equals(123, b._field2);
-  Expect.equals(123, b.X);
-  Expect.equals(200, b.method(77));
-}
-
-testAB_typed() {
-  setup(); // Fresh constructors.
-
-  A a = makeA();
-  B b = makeB();
-
-  a.X = 100;
-  Expect.equals(100, a._field);
-  Expect.equals(100, a.X);
-  Expect.equals(150, a.method(50));
-
-  b._field = 1;
-  b._field2 = 2;
-  b.X = 123;
-  Expect.equals(1, b._field);
-  Expect.equals(123, b._field2);
-  Expect.equals(123, b.X);
-  Expect.equals(200, b.method(77));
-}
-
-main() {
-  nativeTesting();
-  testBasicA_dynamic();
-  testBasicA_typed();
-  testBasicB_dynamic();
-  testBasicB_typed();
-  testAB_dynamic();
-  testAB_typed();
-}
diff --git a/tests/web_2/native/native_class_is_check1_frog_test.dart b/tests/web_2/native/native_class_is_check1_frog_test.dart
deleted file mode 100644
index 83123db5df1..00000000000
--- a/tests/web_2/native/native_class_is_check1_frog_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Test for correct simple is-checks on hidden native classes.
-
-abstract class I {
-  I read();
-  write(covariant I x);
-}
-
-// Native implementation.
-
-@Native("A")
-class A implements I {
-  // The native class accepts only other native instances.
-  A read() native;
-  write(A x) native;
-}
-
-makeA() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  // This code is inside 'setup' and so not accessible from the global scope.
-  function A(){}
-  A.prototype.read = function() { return this._x; };
-  A.prototype.write = function(x) { this._x = x; };
-  self.makeA = function(){return new A()};
-  self.nativeConstructor(A);
-})()""");
-  applyTestExtensions(['A']);
-}
-
-class B {}
-
-main() {
-  nativeTesting();
-  setup();
-
-  var a1 = makeA();
-  var ob = new Object();
-
-  Expect.isFalse(ob is I);
-  Expect.isFalse(ob is A);
-  Expect.isFalse(ob is B);
-
-  Expect.isTrue(a1 is I);
-  Expect.isTrue(a1 is A);
-  Expect.isTrue(a1 is! B);
-}
diff --git a/tests/web_2/native/native_class_is_check3_frog_test.dart b/tests/web_2/native/native_class_is_check3_frog_test.dart
deleted file mode 100644
index fe7b154a586..00000000000
--- a/tests/web_2/native/native_class_is_check3_frog_test.dart
+++ /dev/null
@@ -1,88 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Test for correct simple is-checks on hidden native classes.
-
-abstract class J {}
-
-abstract class I extends J {
-  I read();
-  write(covariant I x);
-}
-
-// Native implementation.
-
-@Native("A")
-class A implements I {
-  // The native class accepts only other native instances.
-  A read() native;
-  write(A x) native;
-}
-
-@Native("B")
-class B extends A {}
-
-makeA() native;
-makeB() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  // This code is inside 'setup' and so not accessible from the global scope.
-  function inherits(child, parent) {
-    if (child.prototype.__proto__) {
-      child.prototype.__proto__ = parent.prototype;
-    } else {
-      function tmp() {};
-      tmp.prototype = parent.prototype;
-      child.prototype = new tmp();
-      child.prototype.constructor = child;
-    }
-  }
-  function A(){}
-  function B(){}
-  inherits(B, A);
-  A.prototype.read = function() { return this._x; };
-  A.prototype.write = function(x) { this._x = x; };
-  self.makeA = function(){return new A()};
-  self.makeB = function(){return new B()};
-  self.nativeConstructor(A);
-  self.nativeConstructor(B);
-})()""");
-  applyTestExtensions(['A', 'B']);
-}
-
-class C {}
-
-main() {
-  nativeTesting();
-  setup();
-
-  var a1 = makeA();
-  var b1 = makeB();
-  var ob = new Object();
-
-  Expect.isFalse(ob is J);
-  Expect.isFalse(ob is I);
-  Expect.isFalse(ob is A);
-  Expect.isFalse(ob is B);
-  Expect.isFalse(ob is C);
-
-  // Use b1 first to prevent a1 is checks patching the A prototype.
-  Expect.isTrue(b1 is J);
-  Expect.isTrue(b1 is I);
-  Expect.isTrue(b1 is A);
-  Expect.isTrue(b1 is B);
-  Expect.isTrue(b1 is! C);
-
-  Expect.isTrue(a1 is J);
-  Expect.isTrue(a1 is I);
-  Expect.isTrue(a1 is A);
-  Expect.isTrue(a1 is! B);
-  Expect.isTrue(a1 is! C);
-}
diff --git a/tests/web_2/native/native_class_with_dart_methods_frog_test.dart b/tests/web_2/native/native_class_with_dart_methods_frog_test.dart
deleted file mode 100644
index 8bd6b6613ba..00000000000
--- a/tests/web_2/native/native_class_with_dart_methods_frog_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-
-// Additional Dart code may be 'placed on' hidden native classes.
-
-@Native("A")
-class A {
-  var _field;
-
-  int get X => _field;
-  void set X(int x) {
-    _field = x;
-  }
-
-  int method(int z) => _field + z;
-}
-
-A makeA() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {}
-  self.makeA = function(){return new A()};
-  self.nativeConstructor(A);
-})()""");
-  applyTestExtensions(['A']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  var a = makeA();
-
-  a.X = 100;
-  Expect.equals(100, a.X);
-  Expect.equals(150, a.method(50));
-}
diff --git a/tests/web_2/native/native_closure_identity_frog_test.dart b/tests/web_2/native/native_closure_identity_frog_test.dart
deleted file mode 100644
index 3d3a44cd756..00000000000
--- a/tests/web_2/native/native_closure_identity_frog_test.dart
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-
-typedef MyFunctionType();
-
-@Native("A")
-class A {
-  setClosure(MyFunctionType f) native;
-  check(MyFunctionType f) native;
-  invoke() native;
-}
-
-makeA() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {}
-  A.prototype.setClosure = function(f) { this.f = f; };
-  A.prototype.check = function(f) { return this.f === f; };
-  A.prototype.invoke = function() { return this.f(); };
-  self.makeA = function(){return new A()};
-
-  self.nativeConstructor(A);
-})()""");
-  applyTestExtensions(['A']);
-}
-
-var staticClosure;
-staticMethod() => 42;
-
-class B {
-  var instanceClosure;
-  instanceMethod() => 43;
-}
-
-checkUntyped(a, closure) {
-  a.setClosure(closure);
-  Expect.isTrue(a.check(closure));
-  Expect.equals(closure(), a.invoke());
-}
-
-checkTyped(A a, MyFunctionType closure) {
-  a.setClosure(closure);
-  Expect.isTrue(a.check(closure));
-  Expect.equals(closure(), a.invoke());
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  staticClosure = () => 44;
-  B b = new B();
-  b.instanceClosure = () => 45;
-
-  closureStatement() => 46;
-  var closureExpression = () => 47;
-
-  checkUntyped(makeA(), staticClosure);
-  checkTyped(makeA(), staticClosure);
-
-  checkUntyped(makeA(), staticMethod);
-  checkTyped(makeA(), staticMethod);
-
-  checkUntyped(makeA(), b.instanceClosure);
-  checkTyped(makeA(), b.instanceClosure);
-
-  checkUntyped(makeA(), b.instanceMethod);
-  checkTyped(makeA(), b.instanceMethod);
-
-  checkUntyped(makeA(), closureStatement);
-  checkTyped(makeA(), closureStatement);
-
-  checkUntyped(makeA(), closureExpression);
-  checkTyped(makeA(), closureExpression);
-}
diff --git a/tests/web_2/native/native_constructor_name_test.dart b/tests/web_2/native/native_constructor_name_test.dart
deleted file mode 100644
index bde29a4c7c8..00000000000
--- a/tests/web_2/native/native_constructor_name_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test to see if a Dart class name is confused with dispatch tag.  Both class A
-// and class Z have a JavaScript constructor named "A".  The dynamic native
-// class dispatch hook on Object.prototype should avoid patching the Dart class
-// A.  This could be done by renaming the Dart constructor or by being able to
-// check that objects are Dart classes.
-
-import "native_testing.dart";
-
-class A {}
-
-@Native("A")
-class Z {
-  foo() => 100;
-}
-
-makeZ() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A(){}
-  self.makeZ = function(){return new A()};
-  self.nativeConstructor(A);
-})()""");
-  applyTestExtensions(['A']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  dynamic a = new A();
-  var z = makeZ();
-
-  Expect.equals(100, z.foo());
-
-  Expect.throws(() => a.foo(), (ex) => ex is NoSuchMethodError);
-}
diff --git a/tests/web_2/native/native_equals_frog_test.dart b/tests/web_2/native/native_equals_frog_test.dart
deleted file mode 100644
index 657c9232188..00000000000
--- a/tests/web_2/native/native_equals_frog_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-
-@Native("A")
-class A {}
-
-int calls = 0;
-
-@Native("B")
-class B {
-  bool operator ==(other) {
-    ++calls;
-    return other is B;
-  }
-
-  int get hashCode => 1;
-}
-
-makeA() native;
-makeB() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {}
-  function B() {}
-  self.makeA = function(){return new A()};
-  self.makeB = function(){return new B()};
-
-  self.nativeConstructor(B);
-})()""");
-  applyTestExtensions(['B']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-  var a = makeA();
-  Expect.isTrue(a == a);
-  Expect.isTrue(identical(a, a));
-
-  Expect.isFalse(a == makeA());
-  Expect.isFalse(identical(a, makeA()));
-
-  var b = makeB();
-  Expect.isTrue(b == b);
-  Expect.isTrue(identical(b, b));
-
-  Expect.isTrue(b == makeB());
-  Expect.isFalse(identical(b, makeB()));
-
-  Expect.equals(2, calls);
-}
diff --git a/tests/web_2/native/native_exception2_test.dart b/tests/web_2/native/native_exception2_test.dart
deleted file mode 100644
index b1751c8bb01..00000000000
--- a/tests/web_2/native/native_exception2_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Similar to native_exception_test.dart but also defines a native
-// class.  This exercises a different code path in emitter.dart.
-
-library native_exception2_test;
-
-import 'native_exception_test.dart' as other;
-import 'native_testing.dart';
-
-@Native("NativeClass")
-class NativeClass {
-  foo() => 'oof';
-}
-
-makeNativeClass() native;
-
-setup() {
-  JS('', r"""
-(function(){
-  function NativeClass() {}
-  self.makeNativeClass = function() { return new NativeClass(); };
-  self.nativeConstructor(NativeClass);
-})()""");
-  applyTestExtensions(['NativeClass']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-  Expect.equals('oof', makeNativeClass().foo());
-  other.main();
-}
diff --git a/tests/web_2/native/native_exception_test.dart b/tests/web_2/native/native_exception_test.dart
deleted file mode 100644
index c3684b44c1d..00000000000
--- a/tests/web_2/native/native_exception_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that dart2js can handle unexpected exception types.
-
-library native_exception_test;
-
-import 'native_testing.dart';
-
-main() {
-  var previous;
-  check(e) {
-    print('$e');
-    Expect.equals(e, e);
-    Expect.notEquals(e, new Object());
-    Expect.notEquals(e, previous);
-    previous = e;
-    return '$e' != '[object Object]';
-  }
-
-  Expect.throws(() {
-    JS('void', 'noGlobalVariableWithThisName');
-  }, check);
-  Expect.throws(() {
-    JS('void', 'throw 3');
-  }, check);
-  Expect.throws(() {
-    JS('bool', 'Object.prototype.hasOwnProperty.call(undefined, "foo")');
-  }, check);
-  Expect.throws(() {
-    JS('void', 'throw new ReferenceError()');
-  }, check);
-  Expect.throws(() {
-    JS('void', 'throw void 0');
-  }, check);
-  Expect.throws(() {
-    JS('void', 'throw "a string"');
-  }, check);
-  Expect.throws(() {
-    JS('void', 'throw null');
-  }, check);
-}
diff --git a/tests/web_2/native/native_exceptions1_frog_test.dart b/tests/web_2/native/native_exceptions1_frog_test.dart
deleted file mode 100644
index 5152580901f..00000000000
--- a/tests/web_2/native/native_exceptions1_frog_test.dart
+++ /dev/null
@@ -1,119 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-
-// Test that hidden native exception classes can be marked as existing.
-//
-// To infer which native hidden types exist, we need
-//   (1) return types of native methods and getters
-//   (2) argument types of callbacks
-//   (3) exceptions thrown by the operation.
-//
-// (1) and (2) can be achieved by having nicely typed native methods, but there
-// is no place in the Dart language to communicate (3).  So we use the following
-// fake body technique.
-
-// The exception type.
-@Native("E")
-class E {
-  E._used() native; // Bogus native constructor, called only from fake body.
-
-  int get code native;
-}
-
-// Type with exception-throwing methods.
-@Native("A")
-class A {
-  // Exception class E is created.
-  @Creates("E")
-  @Returns('int')
-  op(int x) native;
-}
-
-// This class is here just so that a dynamic context is polymorphic.
-class B {
-  int get code => 666;
-  op(String x) => 123;
-}
-
-makeA() native;
-
-void setup1() {
-  JS('', r"""
-(function(){
-  // Ensure we are not relying on global names 'A' and 'E'.
-  self.A = null;
-  self.E = null;
-})()""");
-  applyTestExtensions(['E', 'A']);
-}
-
-void setup2() {
-  JS('', r"""
-(function(){
-// Confirm A and B are null.
-console.assert(self.A == null);
-console.assert(self.B == null);
-
-// This code is all inside 'setup2' and so not accessible from the global scope.
-function E(x){ this.code = x; }
-
-function A(){}
-A.prototype.op = function (x) {
-  if (x & 1) throw new E(100);
-  return  x / 2;
-};
-self.makeA = function(){return new A()};
-
-self.nativeConstructor(E);
-self.nativeConstructor(A);
-})()""");
-}
-
-int inscrutable(int x) => x == 0 ? 0 : x | inscrutable(x & (x - 1));
-
-main() {
-  nativeTesting();
-  setup1();
-  setup2();
-
-  var things = [makeA(), new B()];
-  var a = things[inscrutable(0)];
-  var b = things[inscrutable(1)];
-
-  Expect.equals(25, a.op(50));
-  Expect.equals(123, b.op('hello'));
-  Expect.equals(666, b.code);
-
-  bool threw = false;
-  try {
-    var x = a.op(51);
-  } catch (e) {
-    threw = true;
-    Expect.equals(100, e.code);
-    Expect.isTrue(e is E);
-  }
-  Expect.isTrue(threw);
-
-  // Again, but with statically typed receivers.
-  A aa = a;
-  B bb = b;
-
-  Expect.equals(25, aa.op(50));
-  Expect.equals(123, bb.op('hello'));
-  Expect.equals(666, bb.code);
-
-  threw = false;
-  try {
-    var x = aa.op(51);
-  } on E catch (e) {
-    threw = true;
-    Expect.equals(100, e.code);
-    Expect.isTrue(e is E);
-  }
-  Expect.isTrue(threw);
-}
diff --git a/tests/web_2/native/native_field_invocation2_test.dart b/tests/web_2/native/native_field_invocation2_test.dart
deleted file mode 100644
index 046a03d5410..00000000000
--- a/tests/web_2/native/native_field_invocation2_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-@Native("NNative")
-class NNative {
-  var status;
-
-  var f;
-
-  g(val) => "### $val ###";
-}
-
-class ClickCounter {
-  var status;
-
-  var f;
-
-  ClickCounter() {
-    f = wrap(g);
-  }
-
-  g(val) => "### $val ###";
-}
-
-wrap(cb) {
-  return (val) {
-    return cb("!!! $val !!!");
-  };
-}
-
-nativeId(x) native;
-
-void setup() {
-  JS('', r"""
-(function(){
-self.nativeId = function(x) { return x; }
-})()""");
-}
-
-main() {
-  setup();
-  // Make sure the ClickCounter class goes through interceptors.
-  Expect.equals("### !!! 42 !!! ###", nativeId(new ClickCounter()).f(42));
-  // We are interested in the direct call, where the type is known.
-  Expect.equals("### !!! 499 !!! ###", new ClickCounter().f(499));
-}
diff --git a/tests/web_2/native/native_field_invocation3_test.dart b/tests/web_2/native/native_field_invocation3_test.dart
deleted file mode 100644
index a49211646b3..00000000000
--- a/tests/web_2/native/native_field_invocation3_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-makeCC() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function CC() {}
-  self.makeCC = function() { return new CC() };
-  self.nativeConstructor(CC);
-})()""");
-  applyTestExtensions(['CC']);
-}
-
-@Native("CC")
-class ClickCounter {
-  var status;
-
-  var foo;
-
-  init() {
-    foo = wrap(g);
-  }
-
-  g(val) => "### $val ###";
-}
-
-wrap(cb) {
-  return (val) {
-    return cb("!!! $val !!!");
-  };
-}
-
-main() {
-  nativeTesting();
-  setup();
-  var c = makeCC();
-  c.init();
-  // `foo` contains a closure. Make sure that invoking foo through an
-  // interceptor works.
-  Expect.equals("### !!! 499 !!! ###", c.foo(499));
-}
diff --git a/tests/web_2/native/native_field_invocation4_test.dart b/tests/web_2/native/native_field_invocation4_test.dart
deleted file mode 100644
index abc22afb505..00000000000
--- a/tests/web_2/native/native_field_invocation4_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-@Native("A")
-class A {
-  var foo;
-}
-
-class B {
-  var foo;
-}
-
-nativeId(x) native;
-
-void setup() {
-  JS('', r"""
-(function(){
-self.nativeId = function(x) { return x; }
-})()""");
-}
-
-main() {
-  setup();
-  var b = new B();
-  b.foo = (x) => x + 1;
-  b = nativeId(b); // Inferrer doesn't know if A has been instantiated.
-  // At this point b could be A or B. The call to "foo" thus needs to go through
-  // an interceptor. Tests that the interceptor works for retrieving the field
-  // and invoking the closure.
-  // Use a type-check to guarantee that b is a "B".
-  if (b is B) {
-    Expect.equals(499, b.foo(498));
-  }
-}
diff --git a/tests/web_2/native/native_field_invocation5_test.dart b/tests/web_2/native/native_field_invocation5_test.dart
deleted file mode 100644
index eca547de296..00000000000
--- a/tests/web_2/native/native_field_invocation5_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-makeCC() native;
-nativeFirst(x, y) native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function CC() {}
-  self.makeCC = function() { return new CC() };
-  self.nativeFirst = function(x, y) { return x; };
-  self.nativeConstructor(CC);
-})()""");
-  applyTestExtensions(['CC']);
-}
-
-class C {
-  foo(x) => x;
-}
-
-@Native("CC")
-class ClickCounter {
-  var status;
-
-  var foo;
-
-  init() {
-    foo = wrap(g);
-  }
-
-  g(val) => "### $val ###";
-}
-
-wrap(cb) {
-  return (val) {
-    return cb("!!! $val !!!");
-  };
-}
-
-main() {
-  nativeTesting();
-  setup();
-  var c = makeCC();
-  c.init();
-  var c2 = new C();
-  c = nativeFirst(c, c2);
-  // After the `nativeFirst` invocation dart2js doesn't know if c is a
-  // ClickCounter or C. It must go through the interceptor and call the foo$1
-  // invocation.
-  Expect.equals("### !!! 499 !!! ###", c.foo(499));
-}
diff --git a/tests/web_2/native/native_field_invocation6_test.dart b/tests/web_2/native/native_field_invocation6_test.dart
deleted file mode 100644
index 9dafb4546d5..00000000000
--- a/tests/web_2/native/native_field_invocation6_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-makeA() native;
-nativeFirst(x, y) native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  self.nativeFirst = function(x, y) { return x; };
-
-  function A() {}
-  self.makeA = function() { return new A() };
-  self.nativeConstructor(A);
-})()""");
-  applyTestExtensions(['A']);
-}
-
-@Native("A")
-class A {
-  var _foo;
-
-  get foo => _foo;
-
-  init() {
-    _foo = () => 42;
-  }
-}
-
-class B {
-  var foo = 499;
-}
-
-class C {
-  foo() => 499;
-}
-
-class D {
-  var foo = () => 499;
-}
-
-main() {
-  nativeTesting();
-  setup();
-  var a = makeA();
-  a.init();
-  var b = new B();
-  var c = new C();
-  var d = new D();
-  a = nativeFirst(a, b);
-  a = nativeFirst(a, c);
-  a = nativeFirst(a, d);
-  // The variable a is still an instance of class A, but dart2js can't infer
-  // that anymore.
-  Expect.equals(42, a.foo());
-}
diff --git a/tests/web_2/native/native_field_invocation_test.dart b/tests/web_2/native/native_field_invocation_test.dart
deleted file mode 100644
index 6531ff2e602..00000000000
--- a/tests/web_2/native/native_field_invocation_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-@Native("A")
-class A {
-  var foo;
-}
-
-class B {
-  var foo;
-}
-
-nativeId(x) native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  self.nativeId = function(x) { return x; }
-})()""");
-}
-
-main() {
-  setup();
-  var b = new B();
-  b.foo = (x) => x + 1;
-  b = nativeId(b); // Inferrer doesn't know if A has been instantiated.
-  // At this point b could be A or B. The call to "foo" thus needs to go through
-  // an interceptor. Tests that the interceptor works for retrieving the Dart
-  // class field and invoking the closure.
-  Expect.equals(499, b.foo(498));
-}
diff --git a/tests/web_2/native/native_field_name_test.dart b/tests/web_2/native/native_field_name_test.dart
deleted file mode 100644
index 8c1a623eabe..00000000000
--- a/tests/web_2/native/native_field_name_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-
-// Check that native fields are not incorrectly renamed.
-
-@Native("A")
-class A {
-  int myLongPropertyName;
-  int getValue;
-
-  int method(int z) => myLongPropertyName;
-}
-
-// This code is inside the setup function, so the function names are not
-// accessible, but the makeA variable is global through the magic of JS scoping.
-// The contents of this are of course not analyzable by the compiler.
-void setup() {
-  JS('', r"""
-(function(){
-  function getter() {
-    return ++this.getValue;
-  }
-
-  function setter(x) {
-    this.getValue += 10;
-  }
-
-  function A(){
-    var a = Object.create(
-        { constructor: A },
-        { myLongPropertyName: { get: getter,
-                                set: setter,
-                                configurable: false,
-                                writeable: false
-                              }
-        });
-    a.getValue = 0;
-    return a;
-  }
-
-  self.makeA = function(){return new A()};
-
-  self.nativeConstructor(A);
-})()""");
-  applyTestExtensions(['A']);
-}
-
-/*A*/ makeA() native;
-
-main() {
-  nativeTesting();
-  setup();
-  var a = makeA();
-  a.myLongPropertyName = 21;
-  int gotten = a.myLongPropertyName;
-  Expect.equals(11, gotten);
-
-  var a2 = makeA();
-  if (a2 is A) {
-    // Inside this 'if' the compiler knows that a2 is an A, so it is tempted
-    // to access myLongPropertyName directly, using its minified name.  But
-    // renaming of native properties can only work using getters and setters
-    // that access the original name.
-    a2.myLongPropertyName = 21;
-    int gotten = a2.myLongPropertyName;
-    Expect.equals(11, gotten);
-  }
-}
diff --git a/tests/web_2/native/native_field_optimization_test.dart b/tests/web_2/native/native_field_optimization_test.dart
deleted file mode 100644
index 6aa3aa48156..00000000000
--- a/tests/web_2/native/native_field_optimization_test.dart
+++ /dev/null
@@ -1,100 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-
-// Test that compiler is cautious with optimizations on native fields.  The
-// motivation is that DOM properties are getters and setters with arbitrary
-// effects.  Setting CSSStyleDeclaration.borderLeft can canonicalize the value
-// and changes the value of CSSStyleDeclaration.border.
-
-@Native("Foo")
-class Foo {
-  var a;
-  var b;
-  var ab;
-}
-
-Foo makeFoo() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function Foo() { this.i = 0; }
-
-  Object.defineProperty(Foo.prototype, 'a', {
-    get: function () { return (this._a || '') + ++this.i; },
-    set: function (v) { this._a = v.toLowerCase(); }
-  });
-
-  Object.defineProperty(Foo.prototype, 'b', {
-    get: function () { return this._b || ''; },
-    set: function (v) { this._b = v.toLowerCase(); }
-  });
-
-  Object.defineProperty(Foo.prototype, 'ab', {
-    get: function () { return this.a + ' ' + this.b; },
-    set: function (v) {
-      var s = v.split(' ');
-      this.a = s[0];
-      this.b = s[1];
-    }
-  });
-
-  self.makeFoo = function() { return new Foo() };
-
-  self.nativeConstructor(Foo);
-})()""");
-  applyTestExtensions(['Foo']);
-}
-
-test1() {
-  var f = makeFoo();
-  f.a = 'Hi';
-  f.b = 'There';
-  Expect.equals('hi1 there', f.ab);
-}
-
-test2() {
-  // Test for CSE. dart2js currently does CSE loads. Is this the right choice?
-  var f = makeFoo();
-  var a1 = f.a;
-  var b1 = f.b;
-  var a2 = f.a;
-  Expect.equals('1', a1);
-  if (a2 == a1) {
-    // We did CSE.
-  } else {
-    Expect.equals('2', a2);
-  }
-}
-
-test3() {
-  // Must not CSE over a native field store.
-  var f = makeFoo();
-  var a1 = f.a;
-  f.ab = 'X Y';
-  var a2 = f.a;
-  Expect.equals('1', a1);
-  Expect.equals('x2', a2);
-}
-
-test4() {
-  // Must not store-forward.
-  var f = makeFoo();
-  f.a = 'A';
-  var a2 = f.a;
-  Expect.equals('a1', a2);
-}
-
-main() {
-  nativeTesting();
-  setup();
-  (test1)();
-  (test2)();
-  (test3)();
-  (test4)();
-}
diff --git a/tests/web_2/native/native_field_rename_1_frog_test.dart b/tests/web_2/native/native_field_rename_1_frog_test.dart
deleted file mode 100644
index 42777544f5a..00000000000
--- a/tests/web_2/native/native_field_rename_1_frog_test.dart
+++ /dev/null
@@ -1,92 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// A native method prevents other members from having that name, including
-// fields.  However, native fields keep their name.  The implication: a getter
-// for the field must be based on the field's name, not the field's jsname.
-
-import 'native_testing.dart';
-
-@Native("A")
-class A {
-  int key; //  jsname is 'key'
-  int getKey() => key;
-}
-
-class B {
-  int key; //  jsname is not 'key'
-  B([this.key = 222]);
-  int getKey() => key;
-}
-
-@Native("X")
-class X {
-  @JSName('key')
-  int native_key_method() native;
-  // This should cause B.key to be renamed, but not A.key.
-
-  @JSName('key')
-  int key() native;
-}
-
-A makeA() native;
-X makeX() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  // This code is inside 'setup' and so not accessible from the global scope.
-  function A(){ this.key = 111; }
-  A.prototype.getKey = function(){return this.key;};
-
-  function X(){}
-  X.prototype.key = function(){return 666;};
-
-  self.makeA = function(){return new A()};
-  self.makeX = function(){return new X()};
-
-  self.nativeConstructor(A);
-  self.nativeConstructor(X);
-})()""");
-  applyTestExtensions(['A', 'X']);
-}
-
-testDynamic() {
-  var a = confuse(makeA());
-  var b = confuse(new B());
-  var x = confuse(makeX());
-
-  Expect.equals(111, a.key);
-  Expect.equals(222, b.key);
-  Expect.equals(111, a.getKey());
-  Expect.equals(222, b.getKey());
-
-  Expect.equals(666, x.native_key_method());
-  Expect.equals(666, x.key());
-  // The getter for the closurized member must also have the right name.
-  var fn = x.key;
-  Expect.equals(666, fn());
-}
-
-testTyped() {
-  A a = makeA();
-  B b = new B();
-  X x = makeX();
-
-  Expect.equals(666, x.native_key_method());
-  Expect.equals(111, a.key);
-  Expect.equals(222, b.key);
-  Expect.equals(111, a.getKey());
-  Expect.equals(222, b.getKey());
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  testTyped();
-  testDynamic();
-}
diff --git a/tests/web_2/native/native_field_rename_2_frog_test.dart b/tests/web_2/native/native_field_rename_2_frog_test.dart
deleted file mode 100644
index 37c9c365078..00000000000
--- a/tests/web_2/native/native_field_rename_2_frog_test.dart
+++ /dev/null
@@ -1,107 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// A native method prevents other members from having that name, including
-// fields.  However, native fields keep their name.  The implication: a getter
-// for the field must be based on the field's name, not the field's jsname.
-
-import 'native_testing.dart';
-
-abstract class I {
-  int key;
-}
-
-@Native("A")
-class A implements I {
-  int key; //  jsname is 'key'
-  int getKey() => key;
-}
-
-class B implements I {
-  int key; //  jsname is not 'key'
-  B([this.key = 222]);
-  int getKey() => key;
-}
-
-@Native("X")
-class X {
-  @JSName('key')
-  int native_key_method() native;
-  // This should cause B.key to be renamed, but not A.key.
-  @JSName('key')
-  int key() native;
-}
-
-A makeA() native;
-X makeX() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  // This code is inside 'setup' and so not accessible from the global scope.
-  function A(){ this.key = 111; }
-  A.prototype.getKey = function(){return this.key;};
-
-  function X(){}
-  X.prototype.key = function(){return 666;};
-
-  self.makeA = function(){return new A()};
-  self.makeX = function(){return new X()};
-
-  self.nativeConstructor(A);
-  self.nativeConstructor(X);
-})()""");
-  applyTestExtensions(['A', 'X']);
-}
-
-testDynamic() {
-  var a = confuse(makeA());
-  var b = confuse(new B());
-  var x = confuse(makeX());
-
-  Expect.equals(111, a.key);
-  Expect.equals(222, b.key);
-  Expect.equals(111, a.getKey());
-  Expect.equals(222, b.getKey());
-
-  Expect.equals(666, x.native_key_method());
-  Expect.equals(666, x.key());
-  var fn = x.key;
-  Expect.equals(666, fn());
-}
-
-testPartial() {
-  var things = [makeA(), new B(), makeX()];
-  I a = things[0];
-  I b = things[1];
-
-  // All subtypes of I have a field 'key'. The compiler might be tempted to
-  // generate a direct property access, but that will fail since one of the
-  // fields is renamed.  A getter call is required here.
-  Expect.equals(111, a.key);
-  Expect.equals(222, b.key);
-}
-
-testTyped() {
-  A a = makeA();
-  B b = new B();
-  X x = makeX();
-
-  Expect.equals(666, x.native_key_method());
-  Expect.equals(111, a.key);
-  Expect.equals(222, b.key);
-  Expect.equals(111, a.getKey());
-  Expect.equals(222, b.getKey());
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  testTyped();
-  testPartial();
-  testDynamic();
-}
diff --git a/tests/web_2/native/native_method_inlining_test.dart b/tests/web_2/native/native_method_inlining_test.dart
deleted file mode 100644
index 5ae5cce7587..00000000000
--- a/tests/web_2/native/native_method_inlining_test.dart
+++ /dev/null
@@ -1,148 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--omit-implicit-checks
-
-// Test that native methods with unnamed optional arguments are called with the
-// number of arguments in the call site AND the call site is inlined.
-
-import 'native_testing.dart';
-
-typedef int Int2Int(int x);
-
-@Native("A")
-class A {
-  int foo([x, y, z]) native;
-
-  // Calls can be inlined provided they don't pass an argument.
-  int callFun([Int2Int fn]) native;
-}
-
-class B {
-  @pragma('dart2js:noElision')
-  static var g;
-
-  @pragma('dart2js:noInline')
-  method1(a) {
-    g = '(Method1Tag)'; // Tag to identify compiled JavaScript method.
-    A x = makeA();
-    // Call sites that are searched for in compiled JavaScript.
-    x.foo();
-    x.foo(1);
-    x.foo(2, 10);
-    return x.foo(3, 10, 30);
-  }
-
-  @pragma('dart2js:noInline')
-  method2() {
-    g = '(Method2Tag)';
-    A x = makeA();
-    var r1 = x.callFun(); // Can be inlined.
-    var r2 = x.callFun();
-    return r1 + r2;
-  }
-
-  @pragma('dart2js:noInline')
-  method3() {
-    g = '(Method3Tag)';
-    A x = makeA();
-    var r1 = x.callFun((x) => x * 2); // Can't be inlined due to conversion.
-    var r2 = x.callFun((x) => x * 0);
-    return r1 + r2;
-  }
-}
-
-A makeA() native;
-
-String findMethodTextContaining(instance, string) native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {}
-  A.prototype.foo = function () { return arguments.length; };
-  A.prototype.callFun = function (fn) { return fn ? fn(123) : 1; };
-
-  self.makeA = function(){return new A()};
-
-  findMethodTextContaining = function (instance, string) {
-    var proto = Object.getPrototypeOf(instance);
-    var keys = Object.keys(proto);
-    for (var i = 0; i < keys.length; i++) {
-      var name = keys[i];
-      var member = proto[name];
-      var s = String(member);
-      if (s.indexOf(string)>0) return s;
-    }
-  };
-
-  self.nativeConstructor(A);
-})()""");
-  applyTestExtensions(['A']);
-}
-
-void match(String s, String pattern1) {
-  var pattern2 = pattern1.replaceAll(' ', '');
-  Expect.isTrue(s.contains(pattern1) || s.contains(pattern2),
-      "expected $pattern1 or $pattern2 in '$s'");
-}
-
-void nomatch(String s, String pattern1) {
-  var pattern2 = pattern1.replaceAll(' ', '');
-  Expect.isFalse(s.contains(pattern1) || s.contains(pattern2),
-      "should not have $pattern1 or $pattern2 in '$s'");
-}
-
-test1() {
-  String method1 = findMethodTextContaining(new B(), '(Method1Tag)');
-  Expect.isNotNull(method1, 'No method found containing "(Method1Tag)"');
-
-  // Direct (inlined) calls don't have $3 or minified names.
-  match(method1, r'.foo()');
-  match(method1, r'.foo(1)');
-  match(method1, r'.foo(2, 10)');
-  match(method1, r'.foo(3, 10, 30)');
-
-  // Ensure the methods are compiled by calling them.
-  var a = makeA();
-
-  Expect.equals(0, a.foo());
-  Expect.equals(1, a.foo(10));
-  Expect.equals(2, a.foo(10, 20));
-  Expect.equals(3, a.foo(10, 20, 30));
-
-  var b = new B();
-  var r = b.method1(a);
-  Expect.equals(3, r);
-}
-
-test2() {
-  String method2 = findMethodTextContaining(new B(), '(Method2Tag)');
-  Expect.isNotNull(method2, 'No method found containing "(Method2Tag)"');
-  // Can always inline the zero-arg call.
-  match(method2, r'.callFun()');
-
-  String method3 = findMethodTextContaining(new B(), '(Method3Tag)');
-  Expect.isNotNull(method3, 'No method found containing "(Method3Tag)"');
-  // Don't inline native method with a function argument - should call a stub
-  // containing the conversion.
-  nomatch(method3, r'.callFun(');
-
-  // Ensure the methods are compiled by calling them.
-  var a = makeA();
-  Expect.equals(369, a.callFun((i) => 3 * i));
-
-  var b = new B();
-  Expect.equals(2, b.method2());
-  Expect.equals(246, b.method3());
-}
-
-main() {
-  nativeTesting();
-  setup();
-  test1();
-  test2();
-}
diff --git a/tests/web_2/native/native_method_rename1_frog_test.dart b/tests/web_2/native/native_method_rename1_frog_test.dart
deleted file mode 100644
index cdac3403e70..00000000000
--- a/tests/web_2/native/native_method_rename1_frog_test.dart
+++ /dev/null
@@ -1,85 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test the feature where the native string declares the native method's name.
-
-import 'native_testing.dart';
-import 'dart:_js_helper' show Native, JSName;
-
-@Native("A")
-class A {
-  @JSName('fooA')
-  int foo() native;
-
-  @JSName('barA')
-  int bar() native;
-
-  @JSName('bazA')
-  int baz() native;
-}
-
-A makeA() native;
-
-class B {
-  int bar([x]) => 800;
-  int baz() => 900;
-}
-
-void setup() {
-  JS('', r"""
-(function(){
-  // This code is inside 'setup' and so not accessible from the global scope.
-  function A(){}
-  A.prototype.fooA = function(){return 100;};
-  A.prototype.barA = function(){return 200;};
-  A.prototype.bazA = function(){return 300;};
-
-  self.makeA = function(){return new A()};
-
-  self.nativeConstructor(A);
-})()""");
-  applyTestExtensions(['A']);
-}
-
-testDynamic() {
-  var a = confuse(makeA());
-  var b = confuse(new B());
-
-  Expect.equals(100, a.foo());
-  Expect.equals(200, a.bar());
-  Expect.equals(300, a.baz());
-  Expect.equals(800, b.bar());
-  Expect.equals(900, b.baz());
-}
-
-testTyped() {
-  A a = makeA();
-  B b = new B();
-
-  Expect.equals(100, a.foo());
-  Expect.equals(200, a.bar());
-  Expect.equals(300, a.baz());
-  Expect.equals(800, b.bar());
-  Expect.equals(900, b.baz());
-}
-
-main() {
-  nativeTesting();
-  setup();
-  testDynamic();
-  testTyped();
-}
-
-expectNoSuchMethod(action, note) {
-  bool caught = false;
-  try {
-    action();
-  } catch (ex) {
-    caught = true;
-    Expect.isTrue(ex is NoSuchMethodError, note);
-  }
-  Expect.isTrue(caught, note);
-}
diff --git a/tests/web_2/native/native_method_rename2_frog_test.dart b/tests/web_2/native/native_method_rename2_frog_test.dart
deleted file mode 100644
index 51058f1e56d..00000000000
--- a/tests/web_2/native/native_method_rename2_frog_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test the feature where the native string declares the native method's name.
-
-import "native_testing.dart";
-
-@Native("A")
-class A {
-  @JSName('fooA')
-  int foo() native;
-}
-
-@Native("B")
-class B extends A {
-  @JSName('fooB')
-  int foo() native;
-}
-
-makeA() native;
-makeB() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  // This code is inside 'setup' and so not accessible from the global scope.
-  function inherits(child, parent) {
-    if (child.prototype.__proto__) {
-      child.prototype.__proto__ = parent.prototype;
-    } else {
-      function tmp() {};
-      tmp.prototype = parent.prototype;
-      child.prototype = new tmp();
-      child.prototype.constructor = child;
-    }
-  }
-  function A(){}
-  A.prototype.fooA = function(){return 100;};
-  function B(){}
-  inherits(B, A);
-  B.prototype.fooB = function(){return 200;};
-
-  self.makeA = function(){return new A()};
-  self.makeB = function(){return new B()};
-
-  self.nativeConstructor(A);
-  self.nativeConstructor(B);
-})()""");
-  applyTestExtensions(['A', 'B']);
-}
-
-testDynamic() {
-  var things = [makeA(), makeB()];
-  var a = things[0];
-  var b = things[1];
-
-  Expect.equals(100, a.foo());
-  Expect.equals(200, b.foo());
-
-  expectNoSuchMethod(() {
-    a.fooA();
-  }, 'fooA should be invisible on A');
-  expectNoSuchMethod(() {
-    b.fooA();
-  }, 'fooA should be invisible on B');
-
-  expectNoSuchMethod(() {
-    a.fooB();
-  }, 'fooB should be absent on A');
-  expectNoSuchMethod(() {
-    b.fooB();
-  }, 'fooA should be invisible on B');
-}
-
-testTyped() {
-  A a = makeA();
-  B b = makeB();
-
-  Expect.equals(100, a.foo());
-  Expect.equals(200, b.foo());
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  testDynamic();
-  testTyped();
-}
-
-expectNoSuchMethod(action, note) {
-  bool caught = false;
-  try {
-    action();
-  } catch (ex) {
-    caught = true;
-    Expect.isTrue(ex is NoSuchMethodError, note);
-  }
-  Expect.isTrue(caught, note);
-}
diff --git a/tests/web_2/native/native_method_rename3_frog_test.dart b/tests/web_2/native/native_method_rename3_frog_test.dart
deleted file mode 100644
index 2cb49517f3f..00000000000
--- a/tests/web_2/native/native_method_rename3_frog_test.dart
+++ /dev/null
@@ -1,113 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test the feature where the native string declares the native method's name.
-// #3. The name does not get
-
-import 'native_testing.dart';
-
-@Native("A")
-class A {
-  @JSName('fooA')
-  int foo() native;
-}
-
-@Native("B")
-class B extends A {
-  @JSName('fooB')
-  int foo() native;
-  int fooA() => 333;
-}
-
-class Decoy {
-  int fooA() => 666;
-  int fooB() => 999;
-}
-
-makeA() native;
-makeB() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  // This code is inside 'setup' and so not accessible from the global scope.
-  function inherits(child, parent) {
-    if (child.prototype.__proto__) {
-      child.prototype.__proto__ = parent.prototype;
-    } else {
-      function tmp() {};
-      tmp.prototype = parent.prototype;
-      child.prototype = new tmp();
-      child.prototype.constructor = child;
-    }
-  }
-  function A(){}
-  A.prototype.fooA = function(){return 100;};
-  function B(){}
-  inherits(B, A);
-  B.prototype.fooB = function(){return 200;};
-
-  self.makeA = function(){return new A()};
-  self.makeB = function(){return new B()};
-
-  self.nativeConstructor(A);
-  self.nativeConstructor(B);
-})()""");
-  applyTestExtensions(['A', 'B']);
-}
-
-testDynamic() {
-  var a = confuse(makeA());
-  var b = confuse(makeB());
-  var d = confuse(new Decoy());
-
-  Expect.equals(100, a.foo());
-  Expect.equals(200, b.foo());
-  Expect.equals(666, d.fooA());
-  Expect.equals(999, d.fooB());
-
-  expectNoSuchMethod(() {
-    a.fooA();
-  }, 'fooA should be invisible on A');
-  Expect.equals(333, b.fooA());
-
-  expectNoSuchMethod(() {
-    a.fooB();
-  }, 'fooB should be absent on A');
-  expectNoSuchMethod(() {
-    b.fooB();
-  }, 'fooA should be invisible on B');
-}
-
-testTyped() {
-  A a = makeA();
-  B b = makeB();
-  Decoy d = new Decoy();
-
-  Expect.equals(100, a.foo());
-  Expect.equals(200, b.foo());
-  Expect.equals(666, d.fooA());
-  Expect.equals(999, d.fooB());
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  testDynamic();
-  testTyped();
-}
-
-expectNoSuchMethod(action, note) {
-  bool caught = false;
-  try {
-    action();
-  } on NoSuchMethodError catch (ex) {
-    caught = true;
-    Expect.isTrue(ex is NoSuchMethodError, note);
-  }
-  Expect.isTrue(caught, note);
-}
diff --git a/tests/web_2/native/native_method_with_keyword_name_test.dart b/tests/web_2/native/native_method_with_keyword_name_test.dart
deleted file mode 100644
index 89b5d25dde7..00000000000
--- a/tests/web_2/native/native_method_with_keyword_name_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-
-// Make sure we can have a native with a name that is a JavaScript keyword.
-
-@Native("A")
-class A {
-  int delete() native;
-}
-
-A makeA() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-function A() {}
-A.prototype.delete = function() { return 87; };
-
-makeA = function(){return new A()};
-self.nativeConstructor(A);
-})()""");
-  applyTestExtensions(['A']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  var a1 = confuse(makeA());
-  Expect.equals(87, a1.delete());
-  A a2 = makeA();
-  Expect.equals(87, a2.delete());
-}
diff --git a/tests/web_2/native/native_missing_method1_frog_test.dart b/tests/web_2/native/native_missing_method1_frog_test.dart
deleted file mode 100644
index a1b2ad85120..00000000000
--- a/tests/web_2/native/native_missing_method1_frog_test.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-
-@Native("A")
-class A {}
-
-A makeA() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {};
-  A.prototype.foo = function() { return  99; };
-  self.makeA = function() { return new A(); };
-  self.nativeConstructor(A);
-})()""");
-  applyTestExtensions(['A']);
-}
-
-class B {
-  // We need to define a foo method so that dart2js sees it. Because the
-  // only occurrences of 'foo' is on B, a Dart class, no interceptor is used.  It
-  // thinks all calls will either go to this method, or throw a
-  // NoSuchMethodError. It is possible that the native class will shadow a
-  // method, but it will not shadow 'foo' because the name is either 'mangled'
-  // with the arity, or minified.
-  foo() {
-    return 42;
-  }
-}
-
-typedContext() {
-  confuse(new B()).foo();
-  dynamic a = makeA();
-  Expect.throws(() => a.foo(), (e) => e is NoSuchMethodError);
-  Expect.throws(() => a.foo, (e) => e is NoSuchMethodError);
-  Expect.throws(() => a.foo = 4, (e) => e is NoSuchMethodError);
-}
-
-untypedContext() {
-  confuse(new B()).foo();
-  var a = confuse(makeA());
-  Expect.throws(() => a.foo(), (e) => e is NoSuchMethodError);
-  Expect.throws(() => a.foo, (e) => e is NoSuchMethodError);
-  Expect.throws(() => a.foo = 4, (e) => e is NoSuchMethodError);
-}
-
-main() {
-  nativeTesting();
-  setup();
-  typedContext();
-  untypedContext();
-}
diff --git a/tests/web_2/native/native_missing_method2_frog_test.dart b/tests/web_2/native/native_missing_method2_frog_test.dart
deleted file mode 100644
index ca407b27768..00000000000
--- a/tests/web_2/native/native_missing_method2_frog_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-
-@Native("A")
-class A {}
-
-A makeA() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {};
-  A.prototype.foo = function() { return  42; };
-  self.makeA = function() { return new A() };
-  self.nativeConstructor(A);
-})()""");
-  applyTestExtensions(['A']);
-}
-
-class B {
-  foo() {
-    return 42;
-  }
-}
-
-class C {
-  // By having two 'foo' defined in the application, Frog will mangle
-  // all calls to 'foo', which makes this test pass.
-  foo(x) {
-    return 43;
-  }
-}
-
-inferredContext() {
-  dynamic a = makeA();
-  Expect.throws(() => a.foo(), (e) => e is NoSuchMethodError);
-  Expect.throws(() => a.foo, (e) => e is NoSuchMethodError);
-  Expect.throws(() => a.foo = 4, (e) => e is NoSuchMethodError);
-}
-
-untypedContext() {
-  var a = confuse(makeA());
-  Expect.throws(() => a.foo(), (e) => e is NoSuchMethodError);
-  Expect.throws(() => a.foo, (e) => e is NoSuchMethodError);
-  Expect.throws(() => a.foo = 4, (e) => e is NoSuchMethodError);
-}
-
-main() {
-  nativeTesting();
-  setup();
-  confuse(new B()).foo();
-  confuse(new C()).foo(1);
-  inferredContext();
-  untypedContext();
-}
diff --git a/tests/web_2/native/native_mixin_field2_test.dart b/tests/web_2/native/native_mixin_field2_test.dart
deleted file mode 100644
index 0736aaf05dd..00000000000
--- a/tests/web_2/native/native_mixin_field2_test.dart
+++ /dev/null
@@ -1,90 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Test that native classes can use ordinary Dart classes with fields
-// as mixins.
-
-@Native("A")
-class A {
-  var foo;
-}
-
-class A1 {
-  get foo => 42;
-  set foo(value) {}
-}
-
-@Native("B")
-class B extends A with M1, M2 {
-  var bar;
-}
-
-class B1 extends A1 with M1, M2 {
-  get bar => 42;
-  set bar(value) {}
-}
-
-class M1 {
-  var baz; // This field is not a native field, even when mixed in.
-}
-
-class M2 {
-  var bar;
-  var buz;
-}
-
-A makeA() native;
-B makeB() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {this.foo='A-foo';}
-  function B() {A.call(this);this.bar='B-bar';this.baz='M1-baz';}
-  self.makeA = function(){return new A()};
-  self.makeB = function(){return new B()};
-
-  self.nativeConstructor(A);
-  self.nativeConstructor(B);
-})()""");
-  applyTestExtensions(['A', 'B']);
-}
-
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-main() {
-  nativeTesting();
-  setup();
-  dynamic a = makeA();
-  a ??= new A1();
-  Expect.equals("A-foo", confuse(a).foo);
-  Expect.throws(() => confuse(a).bar, (e) => e is NoSuchMethodError);
-  Expect.throws(() => confuse(a).baz, (e) => e is NoSuchMethodError);
-  Expect.throws(() => confuse(a).buz, (e) => e is NoSuchMethodError);
-
-  dynamic b = makeB();
-  b ??= new B1();
-  Expect.equals("A-foo", confuse(b).foo);
-  Expect.equals("B-bar", confuse(b).bar);
-  // Expect.equals("M1-baz", b.baz);  // not true, see M1.
-  Expect.isNull(confuse(b).baz); // native b.baz is not the same as dart b.baz.
-  Expect.isNull(confuse(b).buz);
-
-  M1 m1 = new M1();
-  Expect.throws(() => confuse(m1).foo, (e) => e is NoSuchMethodError);
-  Expect.throws(() => confuse(m1).bar, (e) => e is NoSuchMethodError);
-  Expect.isNull(m1.baz);
-  Expect.throws(() => confuse(m1).buz, (e) => e is NoSuchMethodError);
-
-  M2 m2 = new M2();
-  Expect.throws(() => confuse(m2).foo, (e) => e is NoSuchMethodError);
-  Expect.isNull(confuse(m2).bar);
-  Expect.throws(() => confuse(m2).baz, (e) => e is NoSuchMethodError);
-  Expect.isNull(confuse(m2).buz);
-}
diff --git a/tests/web_2/native/native_mixin_field_test.dart b/tests/web_2/native/native_mixin_field_test.dart
deleted file mode 100644
index 4a92fc257ee..00000000000
--- a/tests/web_2/native/native_mixin_field_test.dart
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Test that native classes can use ordinary Dart classes with fields
-// as mixins.
-
-@Native("A")
-class A {
-  var foo;
-}
-
-@Native("B")
-class B extends A with M1, M2 {
-  var bar;
-}
-
-class M1 {
-  var baz; // This field is not a native field, even when mixed in.
-}
-
-class M2 {
-  var bar;
-  var buz;
-}
-
-A makeA() native;
-B makeB() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {this.foo='A-foo';}
-  function B() {A.call(this);this.bar='B-bar';this.baz='M1-baz';}
-  self.makeA = function(){return new A()};
-  self.makeB = function(){return new B()};
-
-  self.nativeConstructor(A);
-  self.nativeConstructor(B);
-})()""");
-  applyTestExtensions(['A', 'B']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-  A a = makeA();
-  Expect.equals("A-foo", a.foo);
-  Expect.throws(() => (a as dynamic).bar, (e) => e is NoSuchMethodError);
-  Expect.throws(() => (a as dynamic).baz, (e) => e is NoSuchMethodError);
-  Expect.throws(() => (a as dynamic).buz, (e) => e is NoSuchMethodError);
-
-  B b = makeB();
-  Expect.equals("A-foo", b.foo);
-  Expect.equals("B-bar", b.bar);
-  // Expect.equals("M1-baz", b.baz);  // not true, see M1.
-  Expect.isNull(b.baz); // native b.baz is not the same as dart b.baz.
-  Expect.isNull(b.buz);
-
-  M1 m1 = new M1();
-  Expect.throws(() => (m1 as dynamic).foo, (e) => e is NoSuchMethodError);
-  Expect.throws(() => (m1 as dynamic).bar, (e) => e is NoSuchMethodError);
-  Expect.isNull(m1.baz);
-  Expect.throws(() => (m1 as dynamic).buz, (e) => e is NoSuchMethodError);
-
-  M2 m2 = new M2();
-  Expect.throws(() => (m2 as dynamic).foo, (e) => e is NoSuchMethodError);
-  Expect.isNull(m2.bar);
-  Expect.throws(() => (m2 as dynamic).baz, (e) => e is NoSuchMethodError);
-  Expect.isNull(m2.buz);
-}
diff --git a/tests/web_2/native/native_mixin_multiple2_test.dart b/tests/web_2/native/native_mixin_multiple2_test.dart
deleted file mode 100644
index 3ad645b0a19..00000000000
--- a/tests/web_2/native/native_mixin_multiple2_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Test that native classes can access methods defined only by mixins.
-
-@Native("A")
-class A {
-  foo(x, [y]) => '$x;$y';
-}
-
-@Native("B")
-class B extends A with M1, M2, M3 {}
-
-class M1 {}
-
-class M2 {
-  // These methods are only defined in this non-first, non-last mixin.
-  plain(x) => 'P $x';
-  bar(x, [y]) => '$y,$x';
-}
-
-class M3 {}
-
-makeB() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function B() {}
-  self.makeB = function(){return new B()};
-
-  self.nativeConstructor(B);
-})()""");
-  applyTestExtensions(['B']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  B b = makeB();
-  Expect.equals('1;2', b.foo(1, 2));
-  Expect.equals('2;null', b.foo(2));
-  Expect.equals('P 3', b.plain(3));
-  Expect.equals('100,4', b.bar(4, 100));
-  Expect.equals('null,5', b.bar(5));
-}
diff --git a/tests/web_2/native/native_mixin_multiple3_test.dart b/tests/web_2/native/native_mixin_multiple3_test.dart
deleted file mode 100644
index 2fc6dc1fdd7..00000000000
--- a/tests/web_2/native/native_mixin_multiple3_test.dart
+++ /dev/null
@@ -1,97 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Test that native classes and plain classes can access methods defined only by
-// the same mixin.
-
-class D extends Object with M1, M2, M3 {}
-
-class E extends D {
-  foo() => 'E.foo';
-}
-
-class M1 {}
-
-class M2 {
-  foo() => 'M2.foo';
-}
-
-class M3 {}
-
-@Native("A")
-class A {
-  foo() => 'A.foo';
-}
-
-@Native("B")
-class B extends A with M1, M2, M3 {}
-
-@Native("C")
-class C extends B {
-  foo() => 'C.foo';
-}
-
-makeA() native;
-makeB() native;
-makeC() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {}
-  function B() {}
-  function C() {}
-  self.makeA = function(){return new A()};
-  self.makeB = function(){return new B()};
-  self.makeC = function(){return new C()};
-
-  self.nativeConstructor(A);
-  self.nativeConstructor(B);
-  self.nativeConstructor(C);
-})()""");
-  applyTestExtensions(['A', 'B', 'C']);
-}
-
-var g;
-
-callFoo(x) {
-  // Dominating getInterceptor call should be shared.
-  g = x.toString();
-  // These call sites are partitioned into pure-dart and native subsets,
-  // allowing differences in getInterceptors.
-  if (x is D) return x.foo();
-  if (x is A) return x.foo();
-}
-
-makeAll() => [makeA(), makeB(), makeC(), new D(), new E()];
-
-main() {
-  nativeTesting();
-  setup();
-  /*
-  var a = makeA();
-  var b = makeB();
-  var c = makeC();
-  var d = new D();
-  var e = new E();
-  */
-  var x = makeAll();
-  var a = x[0];
-  var b = x[1];
-  var c = x[2];
-  var d = x[3];
-  var e = x[4];
-
-  var f = callFoo;
-
-  Expect.equals('A.foo', f(a));
-  Expect.equals('M2.foo', f(b));
-  Expect.equals('C.foo', f(c));
-  Expect.equals('M2.foo', f(d));
-  Expect.equals('E.foo', f(e));
-}
diff --git a/tests/web_2/native/native_mixin_multiple_test.dart b/tests/web_2/native/native_mixin_multiple_test.dart
deleted file mode 100644
index f657023860c..00000000000
--- a/tests/web_2/native/native_mixin_multiple_test.dart
+++ /dev/null
@@ -1,90 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Test that native classes can use ordinary Dart classes as mixins.
-
-@Native("A")
-class A {
-  foo() => "A-foo";
-  baz() => "A-baz";
-}
-
-@Native("B")
-class B extends A with M1, M2 {
-  bar() => baz();
-}
-
-class M1 {
-  foo() => "M1-foo";
-  baz() => "M1-baz";
-}
-
-class M2 {
-  foo() => "M2-foo";
-}
-
-A makeA() native;
-B makeB() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {}
-  function B() {}
-  self.makeA = function(){return new A()};
-  self.makeB = function(){return new B()};
-
-  self.nativeConstructor(A);
-  self.nativeConstructor(B);
-})()""");
-  applyTestExtensions(['A', 'B']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-  A a = makeA();
-  Expect.equals("A-foo", a.foo());
-  Expect.throws(
-      () => (a as dynamic).bar(), (error) => error is NoSuchMethodError);
-  Expect.equals("A-baz", a.baz());
-  Expect.isTrue(a is A);
-  Expect.isFalse(a is B);
-  Expect.isFalse(a is M1);
-  Expect.isFalse(a is M2);
-
-  B b = makeB();
-  Expect.equals("M2-foo", b.foo());
-  Expect.equals("M1-baz", b.bar());
-  Expect.equals("M1-baz", b.baz());
-  Expect.isTrue(b is A);
-  Expect.isTrue(b is B);
-  Expect.isTrue(b is M1);
-  Expect.isTrue(b is M2);
-
-  M1 m1 = new M1();
-  Expect.equals("M1-foo", m1.foo());
-  Expect.throws(
-      () => (m1 as dynamic).bar(), (error) => error is NoSuchMethodError);
-  Expect.equals("M1-baz", m1.baz());
-  Expect.isFalse(m1 is A);
-  Expect.isFalse(m1 is B);
-  Expect.isTrue(m1 is M1);
-  Expect.isFalse(m1 is M2);
-
-  M2 m2 = new M2();
-  Expect.equals("M2-foo", m2.foo());
-  Expect.throws(
-      () => (m2 as dynamic).bar(), (error) => error is NoSuchMethodError);
-  Expect.throws(
-      () => (m2 as dynamic).baz(), (error) => error is NoSuchMethodError);
-  Expect.isFalse(m2 is A);
-  Expect.isFalse(m2 is B);
-  Expect.isFalse(m2 is M1);
-  Expect.isTrue(m2 is M2);
-}
diff --git a/tests/web_2/native/native_mixin_test.dart b/tests/web_2/native/native_mixin_test.dart
deleted file mode 100644
index f0f055a6dd8..00000000000
--- a/tests/web_2/native/native_mixin_test.dart
+++ /dev/null
@@ -1,72 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Test that native classes can use ordinary Dart classes as mixins.
-
-@Native("A")
-class A {
-  foo() => "A-foo";
-  baz() => "A-baz";
-}
-
-@Native("B")
-class B extends A with M {
-  bar() => baz();
-}
-
-class M {
-  foo() => "M-foo";
-  bar() => "M-bar";
-}
-
-A makeA() native;
-B makeB() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {}
-  function B() {}
-  self.makeA = function(){return new A()};
-  self.makeB = function(){return new B()};
-
-  self.nativeConstructor(A);
-  self.nativeConstructor(B);
-})()""");
-  applyTestExtensions(['A', 'B']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-  A a = makeA();
-  Expect.equals("A-foo", a.foo());
-  Expect.throws(
-      () => (a as dynamic).bar(), (error) => error is NoSuchMethodError);
-  Expect.equals("A-baz", a.baz());
-  Expect.isTrue(a is A);
-  Expect.isFalse(a is B);
-  Expect.isFalse(a is M);
-
-  B b = makeB();
-  Expect.equals("M-foo", b.foo());
-  Expect.equals("A-baz", b.bar());
-  Expect.equals("A-baz", b.baz());
-  Expect.isTrue(b is A);
-  Expect.isTrue(b is B);
-  Expect.isTrue(b is M);
-
-  M m = new M();
-  Expect.equals("M-foo", m.foo());
-  Expect.equals("M-bar", m.bar());
-  Expect.throws(
-      () => (m as dynamic).baz(), (error) => error is NoSuchMethodError);
-  Expect.isFalse(m is A);
-  Expect.isFalse(m is B);
-  Expect.isTrue(m is M);
-}
diff --git a/tests/web_2/native/native_mixin_with_plain_test.dart b/tests/web_2/native/native_mixin_with_plain_test.dart
deleted file mode 100644
index b896ad1ddad..00000000000
--- a/tests/web_2/native/native_mixin_with_plain_test.dart
+++ /dev/null
@@ -1,115 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Test that native classes and ordinary Dart classes can both use the same
-// ordinary Dart classes as a mixin.
-
-@Native("A")
-class A {
-  String get aa native;
-  foo() => "A-foo $aa";
-  baz() => "A-baz $aa";
-}
-
-@Native("B")
-class B extends A with M {
-  bar() => 'B-bar -> ${baz()}';
-  get mm => 'B.mm($aa)';
-}
-
-class M {
-  foo() => "M-foo ${this.mm}";
-  bar() => "M-bar ${this.mm}";
-  get mm => 'M.mm';
-}
-
-class C {
-  final String cc = 'cc';
-  foo() => 'C-foo $cc';
-  baz() => 'C-baz $cc';
-}
-
-class D extends C with M {
-  bar() => 'D-bar -> ${baz()}';
-  get mm => 'D.mm($cc)';
-}
-
-makeA() native;
-makeB() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {this.aa = 'aa'}
-  function B() {this.aa = 'bb'}
-  self.makeA = function(){return new A()};
-  self.makeB = function(){return new B()};
-
-  self.nativeConstructor(A);
-  self.nativeConstructor(B);
-})()""");
-  applyTestExtensions(['A', 'B']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-  var things = [makeA, makeB, () => new C(), () => new D(), () => new M()]
-      .map((f) => f())
-      .toList();
-  var a = things[0];
-  var b = things[1];
-  var c = things[2];
-  var d = things[3];
-  var m = things[4];
-
-  Expect.equals("M-foo M.mm", m.foo());
-  Expect.equals("M-bar M.mm", m.bar());
-  Expect.throws(() => m.baz(), (error) => error is NoSuchMethodError);
-  Expect.isFalse(m is A);
-  Expect.isFalse(m is B);
-  Expect.isFalse(m is C);
-  Expect.isFalse(m is D);
-  Expect.isTrue(m is M);
-
-  Expect.equals("A-foo aa", a.foo());
-  Expect.throws(() => a.bar(), (error) => error is NoSuchMethodError);
-  Expect.equals("A-baz aa", a.baz());
-  Expect.isTrue(a is A);
-  Expect.isFalse(a is B);
-  Expect.isFalse(a is C);
-  Expect.isFalse(a is D);
-  Expect.isFalse(a is M);
-
-  Expect.equals("M-foo B.mm(bb)", b.foo());
-  Expect.equals("B-bar -> A-baz bb", b.bar());
-  Expect.equals("A-baz bb", b.baz());
-  Expect.isTrue(b is A);
-  Expect.isTrue(b is B);
-  Expect.isFalse(b is C);
-  Expect.isFalse(b is D);
-  Expect.isTrue(b is M);
-
-  Expect.equals("C-foo cc", c.foo());
-  Expect.throws(() => c.bar(), (error) => error is NoSuchMethodError);
-  Expect.equals("C-baz cc", c.baz());
-  Expect.isFalse(c is A);
-  Expect.isFalse(c is B);
-  Expect.isTrue(c is C);
-  Expect.isFalse(c is D);
-  Expect.isFalse(c is M);
-
-  Expect.equals("M-foo D.mm(cc)", d.foo());
-  Expect.equals("D-bar -> C-baz cc", d.bar());
-  Expect.equals("C-baz cc", d.baz());
-  Expect.isFalse(d is A);
-  Expect.isFalse(d is B);
-  Expect.isTrue(d is C);
-  Expect.isTrue(d is D);
-  Expect.isTrue(d is M);
-}
diff --git a/tests/web_2/native/native_named_constructors2_frog_test.dart b/tests/web_2/native/native_named_constructors2_frog_test.dart
deleted file mode 100644
index a8a5f20316e..00000000000
--- a/tests/web_2/native/native_named_constructors2_frog_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Native class with named constructors and static methods.
-
-@Native("A")
-class A {
-  factory A(int len) => _construct(len);
-
-  factory A.fromString(String s) => _construct(s.length);
-
-  factory A.nativeConstructor() {
-    return JS('A|Null', 'makeA(102)');
-  }
-
-  static A _construct(v) {
-    return makeA(v);
-  }
-
-  foo() native;
-}
-
-makeA(v) native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  // This code is inside 'setup' and so not accessible from the global scope.
-  function A(arg) { this._x = arg; }
-  A.prototype.foo = function() { return this._x; };
-  self.makeA = function(arg) { return new A(arg); };
-  self.nativeConstructor(A);
-})()""");
-  applyTestExtensions(['A']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-  var a1 = new A(100);
-  var a2 = new A.fromString('Hello');
-  var a3 = new A.nativeConstructor();
-
-  Expect.equals(100, a1.foo());
-  Expect.equals(5, a2.foo());
-  Expect.equals(102, a3.foo());
-}
diff --git a/tests/web_2/native/native_named_constructors3_frog_test.dart b/tests/web_2/native/native_named_constructors3_frog_test.dart
deleted file mode 100644
index c98aaa3a88b..00000000000
--- a/tests/web_2/native/native_named_constructors3_frog_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Hidden native class with factory constructors and NO static methods.
-// Regression test.
-
-@Native("A")
-class A {
-  // No static methods in this class.
-
-  factory A(int len) => makeA(len);
-
-  factory A.fromString(String s) => makeA(s.length);
-
-  factory A.nativeConstructor() {
-    return JS('A|Null', 'makeA(102)');
-  }
-
-  foo() native;
-}
-
-makeA(v) native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  // This code is inside 'setup' and so not accessible from the global scope.
-  function A(arg) { this._x = arg; }
-  A.prototype.foo = function(){ return this._x; };
-  self.makeA = function(arg) { return new A(arg); };
-  self.nativeConstructor(A);
-})()""");
-  applyTestExtensions(['A']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-  var a1 = new A(100);
-  var a2 = new A.fromString('Hello');
-  var a3 = new A.nativeConstructor();
-
-  Expect.equals(100, a1.foo());
-  Expect.equals(5, a2.foo());
-  Expect.equals(102, a3.foo());
-}
diff --git a/tests/web_2/native/native_no_such_method_exception2_frog_test.dart b/tests/web_2/native/native_no_such_method_exception2_frog_test.dart
deleted file mode 100644
index 6fb278bb06f..00000000000
--- a/tests/web_2/native/native_no_such_method_exception2_frog_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-@Native("A")
-class A {}
-
-@Native("B")
-class B extends A {
-  foo() native;
-}
-
-makeA() native;
-makeB() native;
-
-setup() {
-  JS('', r"""
-(function(){
-  function inherits(child, parent) {
-    if (child.prototype.__proto__) {
-      child.prototype.__proto__ = parent.prototype;
-    } else {
-      function tmp() {};
-      tmp.prototype = parent.prototype;
-      child.prototype = new tmp();
-      child.prototype.constructor = child;
-    }
-  }
-    function A() {}
-    function B() {}
-    inherits(B, A);
-    self.makeA = function() { return new A() };
-    self.makeB = function() { return new B() };
-    B.prototype.foo = function() { return 42; };
-
-    self.nativeConstructor(A);
-    self.nativeConstructor(B);
-})()""");
-  applyTestExtensions(['A', 'B']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-  var a = makeA();
-  var exception;
-  try {
-    a.foo();
-  } on NoSuchMethodError catch (e) {
-    exception = e;
-  }
-  Expect.isNotNull(exception);
-
-  var b = makeB();
-  Expect.equals(42, b.foo());
-}
diff --git a/tests/web_2/native/native_no_such_method_exception_frog_test.dart b/tests/web_2/native/native_no_such_method_exception_frog_test.dart
deleted file mode 100644
index c01d3971ef5..00000000000
--- a/tests/web_2/native/native_no_such_method_exception_frog_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-@Native("A")
-class A {
-  bar() => 42;
-}
-
-@Native("B")
-class B {
-  foo() => 42;
-}
-
-makeA() native;
-
-setup() {
-  JS('', r"""
-(function(){
-  function A() {}
-  self.makeA = function() { return new A(); };
-  self.nativeConstructor(A);
-})()""");
-  applyTestExtensions(['A']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-  var a = makeA();
-  a.bar();
-  var exception;
-  try {
-    a.foo();
-  } on NoSuchMethodError catch (e) {
-    exception = e;
-  }
-  Expect.isNotNull(exception);
-}
diff --git a/tests/web_2/native/native_novel_html_test.dart b/tests/web_2/native/native_novel_html_test.dart
deleted file mode 100644
index 1e2d20d28e5..00000000000
--- a/tests/web_2/native/native_novel_html_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-
-// Test to see if novel HTML tags are interpreted as HTMLElement.
-
-@Native("HTMLElement")
-class Element {
-  String dartMethod(int x) => 'dartMethod(${nativeMethod(x + 1)})';
-  String nativeMethod(int x) native;
-}
-
-makeE() native;
-makeF() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  // A novel HTML element.
-  function HTMLGoofyElement(){}
-  HTMLGoofyElement.prototype.nativeMethod = function(a) {
-    return 'Goofy.nativeMethod(' + a  + ')';
-  };
-  self.makeE = function(){return new HTMLGoofyElement()};
-
-  // A non-HTML element with a misleading name.
-  function HTMLFakeyElement(){}
-  HTMLFakeyElement.prototype.nativeMethod = function(a) {
-    return 'Fakey.nativeMethod(' + a  + ')';
-  };
-  self.makeF = function(){return new HTMLFakeyElement()};
-
-  self.nativeConstructor(HTMLGoofyElement);
-})()""");
-  applyTestExtensions(['HTMLGoofyElement']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  var e = makeE();
-  Expect.equals('Goofy.nativeMethod(10)', e.nativeMethod(10));
-  Expect.equals('dartMethod(Goofy.nativeMethod(11))', e.dartMethod(10));
-
-  var f = makeF();
-  Expect.throws(() => f.nativeMethod(20), (e) => e is NoSuchMethodError,
-      'fake HTML Element must not run Dart method on native class');
-  Expect.throws(() => f.dartMethod(20), (e) => e is NoSuchMethodError,
-      'fake HTML Element must not run native method on native class');
-}
diff --git a/tests/web_2/native/native_null_closure_frog_test.dart b/tests/web_2/native/native_null_closure_frog_test.dart
deleted file mode 100644
index 1ec0bfd5f64..00000000000
--- a/tests/web_2/native/native_null_closure_frog_test.dart
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that exception unwrapping handle cases like ({foo:null}).foo().
-
-import "native_testing.dart";
-
-typedef void MyFunctionType();
-
-@Native("A")
-class A {
-  setClosure(MyFunctionType f) native;
-  check(MyFunctionType f) native;
-  invoke() native;
-}
-
-makeA() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-function A() {}
-  A.prototype.setClosure = function(f) { this.f = f; };
-  A.prototype.check = function(f) { return this.f === f; };
-  A.prototype.invoke = function() { return this.f(); };
-  self.makeA = function(){return new A()};
-
-  self.nativeConstructor(A);
-})()""");
-  applyTestExtensions(['A']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-  A a = makeA();
-  a.setClosure(null);
-  Expect.isTrue(a.check(null));
-  bool caughtException = false;
-  try {
-    a.invoke();
-  } on NoSuchMethodError catch (e) {
-    print(e);
-    caughtException = true;
-  }
-  Expect.isTrue(caughtException);
-}
diff --git a/tests/web_2/native/native_null_frog_test.dart b/tests/web_2/native/native_null_frog_test.dart
deleted file mode 100644
index 14f19c2c808..00000000000
--- a/tests/web_2/native/native_null_frog_test.dart
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Test for values of some basic types.
-
-@Native("A")
-class A {
-  returnNull() native;
-  returnUndefined() native;
-  returnEmptyString() native;
-  returnZero() native;
-}
-
-A makeA() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {}
-  A.prototype.returnNull = function() { return null; };
-  A.prototype.returnUndefined = function() { return void 0; };
-  A.prototype.returnEmptyString = function() { return ""; };
-  A.prototype.returnZero = function() { return 0; };
-  self.makeA = function(){return new A()};
-  self.nativeConstructor(A);
-})()""");
-  applyTestExtensions(['A']);
-}
-
-@pragma('dart2js:noInline')
-staticTests() {
-  A a = makeA();
-  Expect.equals(null, a.returnNull());
-  Expect.equals(null, a.returnUndefined());
-
-  Expect.equals('', a.returnEmptyString());
-  Expect.isTrue(a.returnEmptyString().isEmpty);
-  Expect.isTrue(a.returnEmptyString() is String);
-
-  Expect.isTrue(a.returnZero() is int);
-  Expect.equals(0, a.returnZero());
-}
-
-@pragma('dart2js:noInline')
-dynamicTests() {
-  A a = makeA();
-  Expect.equals(null, confuse(a).returnNull());
-  Expect.equals(null, confuse(a).returnUndefined());
-
-  Expect.equals('', confuse(a).returnEmptyString());
-  Expect.isTrue(confuse(a).returnEmptyString().isEmpty);
-  Expect.isTrue(confuse(a).returnEmptyString() is String);
-
-  Expect.isTrue(confuse(a).returnZero() is int);
-  Expect.equals(0, confuse(a).returnZero());
-}
-
-main() {
-  nativeTesting();
-  setup();
-  staticTests();
-  dynamicTests();
-}
diff --git a/tests/web_2/native/native_property_frog_test.dart b/tests/web_2/native/native_property_frog_test.dart
deleted file mode 100644
index 026dd6ae419..00000000000
--- a/tests/web_2/native/native_property_frog_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Properties on hidden native classes.
-
-import 'native_testing.dart';
-
-@Native("A")
-class A {
-  // Setters and getters should be similar to these methods:
-  int getX() => JS('int', '#._x', this);
-  void setX(int value) {
-    JS('void', '#._x = #', this, value);
-  }
-
-  int get X native;
-  set X(int value) native;
-
-  int get Y native;
-  set Y(int value) native;
-
-  int get Z => JS('int', '#._z', this);
-  set Z(int value) {
-    JS('void', '#._z = #', this, value);
-  }
-}
-
-A makeA() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {}
-
-  Object.defineProperty(A.prototype, "X", {
-    get: function () { return this._x; },
-    set: function (v) { this._x = v; }
-  });
-
-  self.makeA = function(){return new A()};
-
-  self.nativeConstructor(A);
-})()""");
-  applyTestExtensions(['A']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  var a = makeA();
-
-  a.setX(5);
-  Expect.equals(5, a.getX());
-
-  a.X = 10;
-  a.Y = 20;
-  a.Z = 30;
-
-  Expect.equals(10, a.X);
-  Expect.equals(20, a.Y);
-  Expect.equals(30, a.Z);
-
-  confuse(a).setX(6);
-  Expect.equals(6, confuse(a).getX());
-
-  Expect.equals(6, confuse(a).X);
-  Expect.equals(20, confuse(a).Y);
-  Expect.equals(30, confuse(a).Z);
-}
diff --git a/tests/web_2/native/native_test.dart b/tests/web_2/native/native_test.dart
deleted file mode 100644
index dc14fe6e6ea..00000000000
--- a/tests/web_2/native/native_test.dart
+++ /dev/null
@@ -1,213 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test for positive and negative uses of named declarations. This file is
-// also used in tests/compiler/dart2js/model/native_test.dart.
-
-import 'dart:_js_helper';
-
-var topLevelField;
-
-get topLevelGetter => null;
-
-set topLevelSetter(_) {}
-
-topLevelFunction() {}
-
-// NON_NATIVE_EXTERNAL               //# 01: compile-time error
-external get externalTopLevelGetter; //# 01: continued
-
-// NON_NATIVE_EXTERNAL                  //# 02: compile-time error
-external set externalTopLevelSetter(_); //# 02: continued
-
-// NON_NATIVE_EXTERNAL               //# 03: compile-time error
-external externalTopLevelFunction(); //# 03: continued
-
-get nativeTopLevelGetter native;
-
-set nativeTopLevelSetter(_) native;
-
-nativeTopLevelFunction() native;
-
-class Class {
-  Class.generative();
-  factory Class.fact() => null;
-
-  // NON_NATIVE_EXTERNAL               //# 08: compile-time error
-  external Class.externalGenerative(); //# 08: continued
-
-  // NON_NATIVE_EXTERNAL                 //# 09: compile-time error
-  external factory Class.externalFact(); //# 09: continued
-
-  // NATIVE_NON_INSTANCE_IN_NON_NATIVE_CLASS //# 10: compile-time error
-  Class.nativeGenerative() native; //# 10: continued
-
-  // NATIVE_NON_INSTANCE_IN_NON_NATIVE_CLASS //# 11: compile-time error
-  factory Class.nativeFact() native; //# 11: continued
-
-  var instanceField;
-  get instanceGetter => null;
-  set instanceSetter(_) {}
-  instanceMethod() {}
-
-  static var staticField;
-  static get staticGetter => null;
-  static set staticSetter(_) {}
-  static staticMethod() {}
-
-  // NON_NATIVE_EXTERNAL               //# 22: compile-time error
-  external get externalInstanceGetter; //# 22: continued
-
-  // NON_NATIVE_EXTERNAL                  //# 23: compile-time error
-  external set externalInstanceSetter(_); //# 23: continued
-
-  // NON_NATIVE_EXTERNAL             //# 24: compile-time error
-  external externalInstanceMethod(); //# 24: continued
-
-  // NON_NATIVE_EXTERNAL                    //# 25: compile-time error
-  external static get externalStaticGetter; //# 25: continued
-
-  // NON_NATIVE_EXTERNAL                       //# 26: compile-time error
-  external static set externalStaticSetter(_); //# 26: continued
-
-  // NON_NATIVE_EXTERNAL                  //# 27: compile-time error
-  external static externalStaticMethod(); //# 27: continued
-
-  get nativeInstanceGetter native;
-  set nativeInstanceSetter(_) native;
-  nativeInstanceMethod() native;
-
-  // NATIVE_NON_INSTANCE_IN_NON_NATIVE_CLASS //# 28: compile-time error
-  static get nativeStaticGetter native; //# 28: continued
-
-  // NATIVE_NON_INSTANCE_IN_NON_NATIVE_CLASS //# 29: compile-time error
-  static set nativeStaticSetter(_) native; //# 29: continued
-
-  // NATIVE_NON_INSTANCE_IN_NON_NATIVE_CLASS //# 30: compile-time error
-  static nativeStaticMethod() native; //# 30: continued
-}
-
-@Native('d')
-class NativeClass {
-  NativeClass.generative();
-
-  factory NativeClass.fact() => null;
-
-  // NON_NATIVE_EXTERNAL                     //# 31: compile-time error
-  external NativeClass.externalGenerative(); //# 31: continued
-  // NON_NATIVE_EXTERNAL                       //# 32: compile-time error
-  external factory NativeClass.externalFact(); //# 32: continued
-
-  NativeClass.nativeGenerative() native;
-  factory NativeClass.nativeFact() native;
-
-  var instanceField;
-  get instanceGetter => null;
-  set instanceSetter(_) {}
-  instanceMethod() {}
-
-  static var staticField;
-  static get staticGetter => null;
-  static set staticSetter(_) {}
-  static staticMethod() {}
-
-  var instanceNamedField;
-
-  // NON_NATIVE_EXTERNAL               //# 36: compile-time error
-  external get externalInstanceGetter; //# 36: continued
-
-  // NON_NATIVE_EXTERNAL                  //# 37: compile-time error
-  external set externalInstanceSetter(_); //# 37: continued
-
-  // NON_NATIVE_EXTERNAL             //# 38: compile-time error
-  external externalInstanceMethod(); //# 38: continued
-
-  // NON_NATIVE_EXTERNAL                    //# 39: compile-time error
-  external static get externalStaticGetter; //# 39: continued
-
-  // NON_NATIVE_EXTERNAL                       //# 40: compile-time error
-  external static set externalStaticSetter(_); //# 40: continued
-
-  // NON_NATIVE_EXTERNAL                  //# 41: compile-time error
-  external static externalStaticMethod(); //# 41: continued
-
-  get nativeInstanceGetter native;
-  set nativeInstanceSetter(_) native;
-  nativeInstanceMethod() native;
-
-  static get nativeStaticGetter native;
-  static set nativeStaticSetter(_) native;
-  static nativeStaticMethod() native;
-}
-
-main() {
-  if (true) return;
-
-  topLevelField;
-  topLevelGetter;
-  topLevelSetter = null;
-  topLevelFunction();
-  externalTopLevelGetter; //# 01: continued
-  externalTopLevelSetter = null; //# 02: continued
-  externalTopLevelFunction(); //# 03: continued
-  nativeTopLevelGetter;
-  nativeTopLevelSetter = null;
-  nativeTopLevelFunction();
-
-  var c1 = new Class.generative();
-  new Class.fact();
-  new Class.externalGenerative(); //# 08: continued
-  new Class.externalFact(); //# 09: continued
-  new Class.nativeGenerative(); //# 10: continued
-  new Class.nativeFact(); //# 11: continued
-  c1.instanceField;
-  c1.instanceGetter;
-  c1.instanceSetter = null;
-  c1.instanceMethod();
-  Class.staticField;
-  Class.staticGetter;
-  Class.staticSetter = null;
-  Class.staticMethod();
-  c1.externalInstanceGetter; //# 22: continued
-  c1.externalInstanceSetter = null; //# 23: continued
-  c1.externalInstanceMethod(); //# 24: continued
-  Class.externalStaticGetter; //# 25: continued
-  Class.externalStaticSetter = null; //# 26: continued
-  Class.externalStaticMethod(); //# 27: continued
-  c1.nativeInstanceGetter;
-  c1.nativeInstanceSetter = null;
-  c1.nativeInstanceMethod();
-  Class.nativeStaticGetter; //# 28: continued
-  Class.nativeStaticSetter = null; //# 29: continued
-  Class.nativeStaticMethod(); //# 30: continued
-
-  var c2 = new NativeClass.generative();
-  new NativeClass.fact();
-  new NativeClass.externalGenerative(); //# 31: continued
-  new NativeClass.externalFact(); //# 32: continued
-  new NativeClass.nativeGenerative();
-  new NativeClass.nativeFact();
-  c2.instanceField;
-  c2.instanceGetter;
-  c2.instanceSetter = null;
-  c2.instanceMethod();
-  NativeClass.staticField;
-  NativeClass.staticGetter;
-  NativeClass.staticSetter = null;
-  NativeClass.staticMethod();
-  c2.externalInstanceGetter; //# 36: continued
-  c2.externalInstanceSetter = null; //# 37: continued
-  c2.externalInstanceMethod(); //# 38: continued
-  NativeClass.externalStaticGetter; //# 39: continued
-  NativeClass.externalStaticSetter = null; //# 40: continued
-  NativeClass.externalStaticMethod(); //# 41: continued
-  c2.nativeInstanceGetter;
-  c2.nativeInstanceSetter = null;
-  c2.nativeInstanceMethod();
-  NativeClass.nativeStaticGetter;
-  NativeClass.nativeStaticSetter = null;
-  NativeClass.nativeStaticMethod();
-}
diff --git a/tests/web_2/native/native_testing.dart b/tests/web_2/native/native_testing.dart
deleted file mode 100644
index 19d5baef78b..00000000000
--- a/tests/web_2/native/native_testing.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Native testing library. Provides support for mock @Native classes and
-// collects common imports.
-
-import "package:expect/expect.dart";
-import 'dart:_js_helper' show Native;
-import 'dart:_foreign_helper' show JS;
-
-export "package:expect/expect.dart";
-export 'dart:_js_helper'
-    show Creates, Native, JSName, Returns, applyTestExtensions;
-export 'dart:_foreign_helper' show JS;
-
-void nativeTesting() {
-  JS('', r'''
-((function() {
-  var toStringResultProperty = "_toStringResult";
-  var objectToStringMethod = Object.prototype.toString;
-
-  Object.prototype.toString = function() {
-    if (this != null) {
-      var constructor = this.constructor;
-      if (constructor != null) {
-        var result = constructor[toStringResultProperty];
-        if (typeof result == "string") return result;
-      }
-    }
-    return objectToStringMethod.call(this);
-  };
-
-  // To mock a @Native class with JavaScript constructor `Foo`, add
-  //
-  //     self.nativeConstructor(Foo);
-  //
-  // to the JavaScript code.
-  self.nativeConstructor = function(constructor, opt_name) {
-    var toStringResult = "[object " + (opt_name || constructor.name) + "]";
-    constructor[toStringResultProperty] = toStringResult;
-  };
-})())
-''');
-}
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
diff --git a/tests/web_2/native/native_to_string_frog_test.dart b/tests/web_2/native/native_to_string_frog_test.dart
deleted file mode 100644
index aafb8f1baa1..00000000000
--- a/tests/web_2/native/native_to_string_frog_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-
-@Native("A")
-class A {
-  toString() => 'AAA';
-}
-
-makeA() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {}
-  self.makeA = function(){return new A()};
-  self.nativeConstructor(A);
-})()""");
-  applyTestExtensions(['A']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  Expect.isTrue(makeA().toString() is String);
-  Expect.equals('AAA', makeA().toString());
-
-  Expect.isTrue(confuse(makeA()).toString() is String);
-  Expect.equals('AAA', confuse(makeA()).toString());
-}
diff --git a/tests/web_2/native/native_use_native_name_in_table_frog_test.dart b/tests/web_2/native/native_use_native_name_in_table_frog_test.dart
deleted file mode 100644
index 7a9b28358e7..00000000000
--- a/tests/web_2/native/native_use_native_name_in_table_frog_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-
-// Test that we put native names and not Dart names into the dynamic
-// dispatch table.
-
-@Native("NativeA")
-class A {
-  foo() native;
-}
-
-@Native("NativeB")
-class B extends A {}
-
-A makeA() native;
-B makeB() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function inherits(child, parent) {
-    if (child.prototype.__proto__) {
-      child.prototype.__proto__ = parent.prototype;
-    } else {
-      function tmp() {};
-      tmp.prototype = parent.prototype;
-      child.prototype = new tmp();
-      child.prototype.constructor = child;
-    }
-  }
-  function NativeA() {}
-  function NativeB() {}
-  inherits(NativeB, NativeA);
-  NativeA.prototype.foo = function() { return 42; };
-
-  self.makeA = function(){return new NativeA()};
-  self.makeB = function(){return new NativeB()};
-
-  self.nativeConstructor(NativeA);
-  self.nativeConstructor(NativeB);
-})()""");
-  applyTestExtensions(['NativeA', 'NativeB']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  Expect.equals(42, makeA().foo());
-  Expect.equals(42, confuse(makeA()).foo());
-
-  Expect.equals(42, makeB().foo());
-  Expect.equals(42, confuse(makeB()).foo());
-}
diff --git a/tests/web_2/native/native_window1_frog_test.dart b/tests/web_2/native/native_window1_frog_test.dart
deleted file mode 100644
index 094a271478b..00000000000
--- a/tests/web_2/native/native_window1_frog_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-abstract class Window {
-  int get document native;
-}
-
-// Defining this global object makes Frog eager on optimizing
-// call sites where the receiver is typed 'Window'.
-@Native("@*DOMWindow")
-class _DOMWindowJs implements Window {
-  int get document native;
-}
-
-class Win implements Window {
-  noSuchMethod(m) => super.noSuchMethod(m);
-}
-
-main() {
-  nativeTesting();
-  // By typing this variable to 'Window', Frog will optimize calls on
-  // it.
-  Window win = new Win();
-  Expect.throws(() => win.document, (e) => e is NoSuchMethodError);
-}
diff --git a/tests/web_2/native/native_window2_frog_test.dart b/tests/web_2/native/native_window2_frog_test.dart
deleted file mode 100644
index d97771d49e0..00000000000
--- a/tests/web_2/native/native_window2_frog_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-abstract class Window {
-  int get document native;
-}
-
-// Defining this global object makes Frog eager on optimizing
-// call sites where the receiver is typed 'Window'.
-@Native("@*DOMWindow")
-class _DOMWindowJs implements Window {
-  int get document native;
-}
-
-class Win implements Window {
-  noSuchMethod(m) => super.noSuchMethod(m);
-}
-
-main() {
-  nativeTesting();
-  // By not typing the variable, Frog does not try to optimize calls
-  // on it.
-  dynamic win = new Win();
-  Expect.throws(() => win.document, (e) => e is NoSuchMethodError);
-}
diff --git a/tests/web_2/native/native_wrapping_function3_frog_test.dart b/tests/web_2/native/native_wrapping_function3_frog_test.dart
deleted file mode 100644
index da2ea28d5e7..00000000000
--- a/tests/web_2/native/native_wrapping_function3_frog_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-typedef void Callback0();
-typedef void Callback1(arg1);
-typedef void Callback2(arg1, arg2);
-
-@Native("A")
-class A {
-  foo1(Callback1 closure, [arg1 = 0]) native;
-  foo2(Callback2 closure, [arg1 = 0, arg2 = 1]) native;
-}
-
-A makeA() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {}
-  A.prototype.foo1 = function(closure, arg1) { return closure(arg1); };
-  A.prototype.foo2 = function(closure, arg1, arg2) {
-    return closure(arg1, arg2);
-  };
-  self.makeA = function(){return new A()};
-  self.nativeConstructor(A);
-})()""");
-  applyTestExtensions(['A']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-  var a = makeA();
-  // Statically known receiver type calls.
-  Expect.equals(43, a.foo1((arg1) => arg1, 43));
-  Expect.equals(0, a.foo1((arg1) => arg1));
-
-  Expect.equals(44, a.foo2((arg1, arg2) => arg1 + arg2, 21, 23));
-  Expect.equals(22, a.foo2((arg1, arg2) => arg1 + arg2, 21));
-
-  // Dynamic calls.
-  Expect.equals(43, confuse(a).foo1((arg1) => arg1, 43));
-  Expect.equals(0, confuse(a).foo1((arg1) => arg1));
-
-  Expect.equals(44, confuse(a).foo2((arg1, arg2) => arg1 + arg2, 21, 23));
-  Expect.equals(22, confuse(a).foo2((arg1, arg2) => arg1 + arg2, 21));
-}
diff --git a/tests/web_2/native/native_wrapping_function_frog_test.dart b/tests/web_2/native/native_wrapping_function_frog_test.dart
deleted file mode 100644
index 325705e093e..00000000000
--- a/tests/web_2/native/native_wrapping_function_frog_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-typedef void Callback0();
-typedef void Callback1(arg1);
-typedef void Callback2(arg1, arg2);
-
-@Native("A")
-class A {
-  foo0(Callback0 closure) native;
-  foo1(Callback1 closure, arg1) native;
-  foo2(Callback2 closure, arg1, arg2) native;
-}
-
-makeA() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {}
-  A.prototype.foo0 = function(closure) { return closure(); };
-  A.prototype.foo1 = function(closure, arg1) { return closure(arg1); };
-  A.prototype.foo2 = function(closure, arg1, arg2) {
-    return closure(arg1, arg2);
-  };
-  self.makeA = function(){return new A()};
-  self.nativeConstructor(A);
-})()""");
-  applyTestExtensions(['A']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-  var a = makeA();
-  Expect.equals(42, a.foo0(() => 42));
-  Expect.equals(43, a.foo1((arg1) => arg1, 43));
-  Expect.equals(44, a.foo2((arg1, arg2) => arg1 + arg2, 21, 23));
-
-  A aa = a;
-  Expect.equals(42, aa.foo0(() => 42));
-  Expect.equals(43, aa.foo1((arg1) => arg1, 43));
-  Expect.equals(44, aa.foo2((arg1, arg2) => arg1 + arg2, 21, 23));
-}
diff --git a/tests/web_2/native/oddly_named_fields_test.dart b/tests/web_2/native/oddly_named_fields_test.dart
deleted file mode 100644
index 19c27774746..00000000000
--- a/tests/web_2/native/oddly_named_fields_test.dart
+++ /dev/null
@@ -1,1405 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-
-// JavaScript reserved words:
-//
-// break
-// case
-// catch
-// class
-// const
-// continue
-// debugger
-// default
-// delete
-// do
-// else
-// enum
-// export
-// extends
-// false
-// finally
-// for
-// function
-// if
-// implements
-// import
-// in
-// instanceof
-// interface
-// let
-// new
-// null
-// package
-// private
-// protected
-// public
-// return
-// static
-// super
-// switch
-// this
-// throw
-// true
-// try
-// typeof
-// var
-// void
-// while
-// with
-// yield
-//
-// Funny thing in JavaScript: there are two syntactic categories:
-// "Identifier" and "IdentifierName".  The latter includes reserved
-// words.  This is legal JavaScript according to ECMA-262.5:
-//
-//    this.default
-//
-// See section 11.2 "Left-Hand-Side Expressions" which states that a
-// "MemberExpression" includes: "MemberExpression . IdentifierName".
-
-@Native("NativeClassWithOddNames")
-class NativeClassWithOddNames {
-  @JSName('break')
-  bool breakValue;
-  @JSName('case')
-  bool caseValue;
-  @JSName('catch')
-  bool catchValue;
-  @JSName('class')
-  bool classValue;
-  @JSName('const')
-  bool constValue;
-  @JSName('continue')
-  bool continueValue;
-  @JSName('debugger')
-  bool debuggerValue;
-  @JSName('default')
-  bool defaultValue;
-  @JSName('delete')
-  bool deleteValue;
-  @JSName('do')
-  bool doValue;
-  @JSName('else')
-  bool elseValue;
-  @JSName('enum')
-  bool enumValue;
-  @JSName('export')
-  bool exportValue;
-  @JSName('extends')
-  bool extendsValue;
-  @JSName('false')
-  bool falseValue;
-  @JSName('finally')
-  bool finallyValue;
-  @JSName('for')
-  bool forValue;
-  @JSName('function')
-  bool functionValue;
-  @JSName('if')
-  bool ifValue;
-  @JSName('implements')
-  bool implementsValue;
-  @JSName('import')
-  bool importValue;
-  @JSName('in')
-  bool inValue;
-  @JSName('instanceof')
-  bool instanceofValue;
-  @JSName('interface')
-  bool interfaceValue;
-  @JSName('let')
-  bool letValue;
-  @JSName('new')
-  bool newValue;
-  @JSName('null')
-  bool nullValue;
-  @JSName('package')
-  bool packageValue;
-  @JSName('private')
-  bool privateValue;
-  @JSName('protected')
-  bool protectedValue;
-  @JSName('public')
-  bool publicValue;
-  @JSName('return')
-  bool returnValue;
-  @JSName('static')
-  bool staticValue;
-  @JSName('super')
-  bool superValue;
-  @JSName('switch')
-  bool switchValue;
-  @JSName('this')
-  bool thisValue;
-  @JSName('throw')
-  bool throwValue;
-  @JSName('true')
-  bool trueValue;
-  @JSName('try')
-  bool tryValue;
-  @JSName('typeof')
-  bool typeofValue;
-  @JSName('var')
-  bool varValue;
-  @JSName('void')
-  bool voidValue;
-  @JSName('while')
-  bool whileValue;
-  @JSName('with')
-  bool withValue;
-  @JSName('yield')
-  bool yieldValue;
-
-  void testMyFields() {
-    if (breakValue != null) throw 'incorrect initialization of "breakValue"';
-    breakValue = true;
-    if (!breakValue) throw 'incorrect value in "breakValue"';
-    breakValue = false;
-    if (breakValue) throw 'incorrect value in "breakValue"';
-
-    if (caseValue != null) throw 'incorrect initialization of "caseValue"';
-    caseValue = true;
-    if (!caseValue) throw 'incorrect value in "caseValue"';
-    caseValue = false;
-    if (caseValue) throw 'incorrect value in "caseValue"';
-
-    if (catchValue != null) throw 'incorrect initialization of "catchValue"';
-    catchValue = true;
-    if (!catchValue) throw 'incorrect value in "catchValue"';
-    catchValue = false;
-    if (catchValue) throw 'incorrect value in "catchValue"';
-
-    if (classValue != null) throw 'incorrect initialization of "classValue"';
-    classValue = true;
-    if (!classValue) throw 'incorrect value in "classValue"';
-    classValue = false;
-    if (classValue) throw 'incorrect value in "classValue"';
-
-    if (constValue != null) throw 'incorrect initialization of "constValue"';
-    constValue = true;
-    if (!constValue) throw 'incorrect value in "constValue"';
-    constValue = false;
-    if (constValue) throw 'incorrect value in "constValue"';
-
-    if (continueValue != null)
-      throw 'incorrect initialization of "continueValue"';
-    continueValue = true;
-    if (!continueValue) throw 'incorrect value in "continueValue"';
-    continueValue = false;
-    if (continueValue) throw 'incorrect value in "continueValue"';
-
-    if (debuggerValue != null)
-      throw 'incorrect initialization of "debuggerValue"';
-    debuggerValue = true;
-    if (!debuggerValue) throw 'incorrect value in "debuggerValue"';
-    debuggerValue = false;
-    if (debuggerValue) throw 'incorrect value in "debuggerValue"';
-
-    if (defaultValue != null)
-      throw 'incorrect initialization of "defaultValue"';
-    defaultValue = true;
-    if (!defaultValue) throw 'incorrect value in "defaultValue"';
-    defaultValue = false;
-    if (defaultValue) throw 'incorrect value in "defaultValue"';
-
-    if (deleteValue != null) throw 'incorrect initialization of "deleteValue"';
-    deleteValue = true;
-    if (!deleteValue) throw 'incorrect value in "deleteValue"';
-    deleteValue = false;
-    if (deleteValue) throw 'incorrect value in "deleteValue"';
-
-    if (doValue != null) throw 'incorrect initialization of "doValue"';
-    doValue = true;
-    if (!doValue) throw 'incorrect value in "doValue"';
-    doValue = false;
-    if (doValue) throw 'incorrect value in "doValue"';
-
-    if (elseValue != null) throw 'incorrect initialization of "elseValue"';
-    elseValue = true;
-    if (!elseValue) throw 'incorrect value in "elseValue"';
-    elseValue = false;
-    if (elseValue) throw 'incorrect value in "elseValue"';
-
-    if (enumValue != null) throw 'incorrect initialization of "enumValue"';
-    enumValue = true;
-    if (!enumValue) throw 'incorrect value in "enumValue"';
-    enumValue = false;
-    if (enumValue) throw 'incorrect value in "enumValue"';
-
-    if (exportValue != null) throw 'incorrect initialization of "exportValue"';
-    exportValue = true;
-    if (!exportValue) throw 'incorrect value in "exportValue"';
-    exportValue = false;
-    if (exportValue) throw 'incorrect value in "exportValue"';
-
-    if (extendsValue != null)
-      throw 'incorrect initialization of "extendsValue"';
-    extendsValue = true;
-    if (!extendsValue) throw 'incorrect value in "extendsValue"';
-    extendsValue = false;
-    if (extendsValue) throw 'incorrect value in "extendsValue"';
-
-    if (falseValue != null) throw 'incorrect initialization of "falseValue"';
-    falseValue = true;
-    if (!falseValue) throw 'incorrect value in "falseValue"';
-    falseValue = false;
-    if (falseValue) throw 'incorrect value in "falseValue"';
-
-    if (finallyValue != null)
-      throw 'incorrect initialization of "finallyValue"';
-    finallyValue = true;
-    if (!finallyValue) throw 'incorrect value in "finallyValue"';
-    finallyValue = false;
-    if (finallyValue) throw 'incorrect value in "finallyValue"';
-
-    if (forValue != null) throw 'incorrect initialization of "forValue"';
-    forValue = true;
-    if (!forValue) throw 'incorrect value in "forValue"';
-    forValue = false;
-    if (forValue) throw 'incorrect value in "forValue"';
-
-    if (functionValue != null)
-      throw 'incorrect initialization of "functionValue"';
-    functionValue = true;
-    if (!functionValue) throw 'incorrect value in "functionValue"';
-    functionValue = false;
-    if (functionValue) throw 'incorrect value in "functionValue"';
-
-    if (ifValue != null) throw 'incorrect initialization of "ifValue"';
-    ifValue = true;
-    if (!ifValue) throw 'incorrect value in "ifValue"';
-    ifValue = false;
-    if (ifValue) throw 'incorrect value in "ifValue"';
-
-    if (implementsValue != null)
-      throw 'incorrect initialization of "implementsValue"';
-    implementsValue = true;
-    if (!implementsValue) throw 'incorrect value in "implementsValue"';
-    implementsValue = false;
-    if (implementsValue) throw 'incorrect value in "implementsValue"';
-
-    if (importValue != null) throw 'incorrect initialization of "importValue"';
-    importValue = true;
-    if (!importValue) throw 'incorrect value in "importValue"';
-    importValue = false;
-    if (importValue) throw 'incorrect value in "importValue"';
-
-    if (inValue != null) throw 'incorrect initialization of "inValue"';
-    inValue = true;
-    if (!inValue) throw 'incorrect value in "inValue"';
-    inValue = false;
-    if (inValue) throw 'incorrect value in "inValue"';
-
-    if (instanceofValue != null)
-      throw 'incorrect initialization of "instanceofValue"';
-    instanceofValue = true;
-    if (!instanceofValue) throw 'incorrect value in "instanceofValue"';
-    instanceofValue = false;
-    if (instanceofValue) throw 'incorrect value in "instanceofValue"';
-
-    if (interfaceValue != null)
-      throw 'incorrect initialization of "interfaceValue"';
-    interfaceValue = true;
-    if (!interfaceValue) throw 'incorrect value in "interfaceValue"';
-    interfaceValue = false;
-    if (interfaceValue) throw 'incorrect value in "interfaceValue"';
-
-    if (letValue != null) throw 'incorrect initialization of "letValue"';
-    letValue = true;
-    if (!letValue) throw 'incorrect value in "letValue"';
-    letValue = false;
-    if (letValue) throw 'incorrect value in "letValue"';
-
-    if (newValue != null) throw 'incorrect initialization of "newValue"';
-    newValue = true;
-    if (!newValue) throw 'incorrect value in "newValue"';
-    newValue = false;
-    if (newValue) throw 'incorrect value in "newValue"';
-
-    if (nullValue != null) throw 'incorrect initialization of "nullValue"';
-    nullValue = true;
-    if (!nullValue) throw 'incorrect value in "nullValue"';
-    nullValue = false;
-    if (nullValue) throw 'incorrect value in "nullValue"';
-
-    if (packageValue != null)
-      throw 'incorrect initialization of "packageValue"';
-    packageValue = true;
-    if (!packageValue) throw 'incorrect value in "packageValue"';
-    packageValue = false;
-    if (packageValue) throw 'incorrect value in "packageValue"';
-
-    if (privateValue != null)
-      throw 'incorrect initialization of "privateValue"';
-    privateValue = true;
-    if (!privateValue) throw 'incorrect value in "privateValue"';
-    privateValue = false;
-    if (privateValue) throw 'incorrect value in "privateValue"';
-
-    if (protectedValue != null)
-      throw 'incorrect initialization of "protectedValue"';
-    protectedValue = true;
-    if (!protectedValue) throw 'incorrect value in "protectedValue"';
-    protectedValue = false;
-    if (protectedValue) throw 'incorrect value in "protectedValue"';
-
-    if (publicValue != null) throw 'incorrect initialization of "publicValue"';
-    publicValue = true;
-    if (!publicValue) throw 'incorrect value in "publicValue"';
-    publicValue = false;
-    if (publicValue) throw 'incorrect value in "publicValue"';
-
-    if (returnValue != null) throw 'incorrect initialization of "returnValue"';
-    returnValue = true;
-    if (!returnValue) throw 'incorrect value in "returnValue"';
-    returnValue = false;
-    if (returnValue) throw 'incorrect value in "returnValue"';
-
-    if (staticValue != null) throw 'incorrect initialization of "staticValue"';
-    staticValue = true;
-    if (!staticValue) throw 'incorrect value in "staticValue"';
-    staticValue = false;
-    if (staticValue) throw 'incorrect value in "staticValue"';
-
-    if (superValue != null) throw 'incorrect initialization of "superValue"';
-    superValue = true;
-    if (!superValue) throw 'incorrect value in "superValue"';
-    superValue = false;
-    if (superValue) throw 'incorrect value in "superValue"';
-
-    if (switchValue != null) throw 'incorrect initialization of "switchValue"';
-    switchValue = true;
-    if (!switchValue) throw 'incorrect value in "switchValue"';
-    switchValue = false;
-    if (switchValue) throw 'incorrect value in "switchValue"';
-
-    if (thisValue != null) throw 'incorrect initialization of "thisValue"';
-    thisValue = true;
-    if (!thisValue) throw 'incorrect value in "thisValue"';
-    thisValue = false;
-    if (thisValue) throw 'incorrect value in "thisValue"';
-
-    if (throwValue != null) throw 'incorrect initialization of "throwValue"';
-    throwValue = true;
-    if (!throwValue) throw 'incorrect value in "throwValue"';
-    throwValue = false;
-    if (throwValue) throw 'incorrect value in "throwValue"';
-
-    if (trueValue != null) throw 'incorrect initialization of "trueValue"';
-    trueValue = true;
-    if (!trueValue) throw 'incorrect value in "trueValue"';
-    trueValue = false;
-    if (trueValue) throw 'incorrect value in "trueValue"';
-
-    if (tryValue != null) throw 'incorrect initialization of "tryValue"';
-    tryValue = true;
-    if (!tryValue) throw 'incorrect value in "tryValue"';
-    tryValue = false;
-    if (tryValue) throw 'incorrect value in "tryValue"';
-
-    if (typeofValue != null) throw 'incorrect initialization of "typeofValue"';
-    typeofValue = true;
-    if (!typeofValue) throw 'incorrect value in "typeofValue"';
-    typeofValue = false;
-    if (typeofValue) throw 'incorrect value in "typeofValue"';
-
-    if (varValue != null) throw 'incorrect initialization of "varValue"';
-    varValue = true;
-    if (!varValue) throw 'incorrect value in "varValue"';
-    varValue = false;
-    if (varValue) throw 'incorrect value in "varValue"';
-
-    if (voidValue != null) throw 'incorrect initialization of "voidValue"';
-    voidValue = true;
-    if (!voidValue) throw 'incorrect value in "voidValue"';
-    voidValue = false;
-    if (voidValue) throw 'incorrect value in "voidValue"';
-
-    if (whileValue != null) throw 'incorrect initialization of "whileValue"';
-    whileValue = true;
-    if (!whileValue) throw 'incorrect value in "whileValue"';
-    whileValue = false;
-    if (whileValue) throw 'incorrect value in "whileValue"';
-
-    if (withValue != null) throw 'incorrect initialization of "withValue"';
-    withValue = true;
-    if (!withValue) throw 'incorrect value in "withValue"';
-    withValue = false;
-    if (withValue) throw 'incorrect value in "withValue"';
-
-    if (yieldValue != null) throw 'incorrect initialization of "yieldValue"';
-    yieldValue = true;
-    if (!yieldValue) throw 'incorrect value in "yieldValue"';
-    yieldValue = false;
-    if (yieldValue) throw 'incorrect value in "yieldValue"';
-  }
-}
-
-class ClassWithOddNames {
-  bool breakValue;
-  bool caseValue;
-  bool catchValue;
-  bool classValue;
-  bool constValue;
-  bool continueValue;
-  bool debuggerValue;
-  bool defaultValue;
-  bool deleteValue;
-  bool doValue;
-  bool elseValue;
-  bool enumValue;
-  bool exportValue;
-  bool extendsValue;
-  bool falseValue;
-  bool finallyValue;
-  bool forValue;
-  bool functionValue;
-  bool ifValue;
-  bool implementsValue;
-  bool importValue;
-  bool inValue;
-  bool instanceofValue;
-  bool interfaceValue;
-  bool letValue;
-  bool newValue;
-  bool nullValue;
-  bool packageValue;
-  bool privateValue;
-  bool protectedValue;
-  bool publicValue;
-  bool returnValue;
-  bool staticValue;
-  bool superValue;
-  bool switchValue;
-  bool thisValue;
-  bool throwValue;
-  bool trueValue;
-  bool tryValue;
-  bool typeofValue;
-  bool varValue;
-  bool voidValue;
-  bool whileValue;
-  bool withValue;
-  bool yieldValue;
-
-  void testMyFields() {
-    if (breakValue != null) throw 'incorrect initialization of "breakValue"';
-    breakValue = true;
-    if (!breakValue) throw 'incorrect value in "breakValue"';
-    breakValue = false;
-    if (breakValue) throw 'incorrect value in "breakValue"';
-
-    if (caseValue != null) throw 'incorrect initialization of "caseValue"';
-    caseValue = true;
-    if (!caseValue) throw 'incorrect value in "caseValue"';
-    caseValue = false;
-    if (caseValue) throw 'incorrect value in "caseValue"';
-
-    if (catchValue != null) throw 'incorrect initialization of "catchValue"';
-    catchValue = true;
-    if (!catchValue) throw 'incorrect value in "catchValue"';
-    catchValue = false;
-    if (catchValue) throw 'incorrect value in "catchValue"';
-
-    if (classValue != null) throw 'incorrect initialization of "classValue"';
-    classValue = true;
-    if (!classValue) throw 'incorrect value in "classValue"';
-    classValue = false;
-    if (classValue) throw 'incorrect value in "classValue"';
-
-    if (constValue != null) throw 'incorrect initialization of "constValue"';
-    constValue = true;
-    if (!constValue) throw 'incorrect value in "constValue"';
-    constValue = false;
-    if (constValue) throw 'incorrect value in "constValue"';
-
-    if (continueValue != null)
-      throw 'incorrect initialization of "continueValue"';
-    continueValue = true;
-    if (!continueValue) throw 'incorrect value in "continueValue"';
-    continueValue = false;
-    if (continueValue) throw 'incorrect value in "continueValue"';
-
-    if (debuggerValue != null)
-      throw 'incorrect initialization of "debuggerValue"';
-    debuggerValue = true;
-    if (!debuggerValue) throw 'incorrect value in "debuggerValue"';
-    debuggerValue = false;
-    if (debuggerValue) throw 'incorrect value in "debuggerValue"';
-
-    if (defaultValue != null)
-      throw 'incorrect initialization of "defaultValue"';
-    defaultValue = true;
-    if (!defaultValue) throw 'incorrect value in "defaultValue"';
-    defaultValue = false;
-    if (defaultValue) throw 'incorrect value in "defaultValue"';
-
-    if (deleteValue != null) throw 'incorrect initialization of "deleteValue"';
-    deleteValue = true;
-    if (!deleteValue) throw 'incorrect value in "deleteValue"';
-    deleteValue = false;
-    if (deleteValue) throw 'incorrect value in "deleteValue"';
-
-    if (doValue != null) throw 'incorrect initialization of "doValue"';
-    doValue = true;
-    if (!doValue) throw 'incorrect value in "doValue"';
-    doValue = false;
-    if (doValue) throw 'incorrect value in "doValue"';
-
-    if (elseValue != null) throw 'incorrect initialization of "elseValue"';
-    elseValue = true;
-    if (!elseValue) throw 'incorrect value in "elseValue"';
-    elseValue = false;
-    if (elseValue) throw 'incorrect value in "elseValue"';
-
-    if (enumValue != null) throw 'incorrect initialization of "enumValue"';
-    enumValue = true;
-    if (!enumValue) throw 'incorrect value in "enumValue"';
-    enumValue = false;
-    if (enumValue) throw 'incorrect value in "enumValue"';
-
-    if (exportValue != null) throw 'incorrect initialization of "exportValue"';
-    exportValue = true;
-    if (!exportValue) throw 'incorrect value in "exportValue"';
-    exportValue = false;
-    if (exportValue) throw 'incorrect value in "exportValue"';
-
-    if (extendsValue != null)
-      throw 'incorrect initialization of "extendsValue"';
-    extendsValue = true;
-    if (!extendsValue) throw 'incorrect value in "extendsValue"';
-    extendsValue = false;
-    if (extendsValue) throw 'incorrect value in "extendsValue"';
-
-    if (falseValue != null) throw 'incorrect initialization of "falseValue"';
-    falseValue = true;
-    if (!falseValue) throw 'incorrect value in "falseValue"';
-    falseValue = false;
-    if (falseValue) throw 'incorrect value in "falseValue"';
-
-    if (finallyValue != null)
-      throw 'incorrect initialization of "finallyValue"';
-    finallyValue = true;
-    if (!finallyValue) throw 'incorrect value in "finallyValue"';
-    finallyValue = false;
-    if (finallyValue) throw 'incorrect value in "finallyValue"';
-
-    if (forValue != null) throw 'incorrect initialization of "forValue"';
-    forValue = true;
-    if (!forValue) throw 'incorrect value in "forValue"';
-    forValue = false;
-    if (forValue) throw 'incorrect value in "forValue"';
-
-    if (functionValue != null)
-      throw 'incorrect initialization of "functionValue"';
-    functionValue = true;
-    if (!functionValue) throw 'incorrect value in "functionValue"';
-    functionValue = false;
-    if (functionValue) throw 'incorrect value in "functionValue"';
-
-    if (ifValue != null) throw 'incorrect initialization of "ifValue"';
-    ifValue = true;
-    if (!ifValue) throw 'incorrect value in "ifValue"';
-    ifValue = false;
-    if (ifValue) throw 'incorrect value in "ifValue"';
-
-    if (implementsValue != null)
-      throw 'incorrect initialization of "implementsValue"';
-    implementsValue = true;
-    if (!implementsValue) throw 'incorrect value in "implementsValue"';
-    implementsValue = false;
-    if (implementsValue) throw 'incorrect value in "implementsValue"';
-
-    if (importValue != null) throw 'incorrect initialization of "importValue"';
-    importValue = true;
-    if (!importValue) throw 'incorrect value in "importValue"';
-    importValue = false;
-    if (importValue) throw 'incorrect value in "importValue"';
-
-    if (inValue != null) throw 'incorrect initialization of "inValue"';
-    inValue = true;
-    if (!inValue) throw 'incorrect value in "inValue"';
-    inValue = false;
-    if (inValue) throw 'incorrect value in "inValue"';
-
-    if (instanceofValue != null)
-      throw 'incorrect initialization of "instanceofValue"';
-    instanceofValue = true;
-    if (!instanceofValue) throw 'incorrect value in "instanceofValue"';
-    instanceofValue = false;
-    if (instanceofValue) throw 'incorrect value in "instanceofValue"';
-
-    if (interfaceValue != null)
-      throw 'incorrect initialization of "interfaceValue"';
-    interfaceValue = true;
-    if (!interfaceValue) throw 'incorrect value in "interfaceValue"';
-    interfaceValue = false;
-    if (interfaceValue) throw 'incorrect value in "interfaceValue"';
-
-    if (letValue != null) throw 'incorrect initialization of "letValue"';
-    letValue = true;
-    if (!letValue) throw 'incorrect value in "letValue"';
-    letValue = false;
-    if (letValue) throw 'incorrect value in "letValue"';
-
-    if (newValue != null) throw 'incorrect initialization of "newValue"';
-    newValue = true;
-    if (!newValue) throw 'incorrect value in "newValue"';
-    newValue = false;
-    if (newValue) throw 'incorrect value in "newValue"';
-
-    if (nullValue != null) throw 'incorrect initialization of "nullValue"';
-    nullValue = true;
-    if (!nullValue) throw 'incorrect value in "nullValue"';
-    nullValue = false;
-    if (nullValue) throw 'incorrect value in "nullValue"';
-
-    if (packageValue != null)
-      throw 'incorrect initialization of "packageValue"';
-    packageValue = true;
-    if (!packageValue) throw 'incorrect value in "packageValue"';
-    packageValue = false;
-    if (packageValue) throw 'incorrect value in "packageValue"';
-
-    if (privateValue != null)
-      throw 'incorrect initialization of "privateValue"';
-    privateValue = true;
-    if (!privateValue) throw 'incorrect value in "privateValue"';
-    privateValue = false;
-    if (privateValue) throw 'incorrect value in "privateValue"';
-
-    if (protectedValue != null)
-      throw 'incorrect initialization of "protectedValue"';
-    protectedValue = true;
-    if (!protectedValue) throw 'incorrect value in "protectedValue"';
-    protectedValue = false;
-    if (protectedValue) throw 'incorrect value in "protectedValue"';
-
-    if (publicValue != null) throw 'incorrect initialization of "publicValue"';
-    publicValue = true;
-    if (!publicValue) throw 'incorrect value in "publicValue"';
-    publicValue = false;
-    if (publicValue) throw 'incorrect value in "publicValue"';
-
-    if (returnValue != null) throw 'incorrect initialization of "returnValue"';
-    returnValue = true;
-    if (!returnValue) throw 'incorrect value in "returnValue"';
-    returnValue = false;
-    if (returnValue) throw 'incorrect value in "returnValue"';
-
-    if (staticValue != null) throw 'incorrect initialization of "staticValue"';
-    staticValue = true;
-    if (!staticValue) throw 'incorrect value in "staticValue"';
-    staticValue = false;
-    if (staticValue) throw 'incorrect value in "staticValue"';
-
-    if (superValue != null) throw 'incorrect initialization of "superValue"';
-    superValue = true;
-    if (!superValue) throw 'incorrect value in "superValue"';
-    superValue = false;
-    if (superValue) throw 'incorrect value in "superValue"';
-
-    if (switchValue != null) throw 'incorrect initialization of "switchValue"';
-    switchValue = true;
-    if (!switchValue) throw 'incorrect value in "switchValue"';
-    switchValue = false;
-    if (switchValue) throw 'incorrect value in "switchValue"';
-
-    if (thisValue != null) throw 'incorrect initialization of "thisValue"';
-    thisValue = true;
-    if (!thisValue) throw 'incorrect value in "thisValue"';
-    thisValue = false;
-    if (thisValue) throw 'incorrect value in "thisValue"';
-
-    if (throwValue != null) throw 'incorrect initialization of "throwValue"';
-    throwValue = true;
-    if (!throwValue) throw 'incorrect value in "throwValue"';
-    throwValue = false;
-    if (throwValue) throw 'incorrect value in "throwValue"';
-
-    if (trueValue != null) throw 'incorrect initialization of "trueValue"';
-    trueValue = true;
-    if (!trueValue) throw 'incorrect value in "trueValue"';
-    trueValue = false;
-    if (trueValue) throw 'incorrect value in "trueValue"';
-
-    if (tryValue != null) throw 'incorrect initialization of "tryValue"';
-    tryValue = true;
-    if (!tryValue) throw 'incorrect value in "tryValue"';
-    tryValue = false;
-    if (tryValue) throw 'incorrect value in "tryValue"';
-
-    if (typeofValue != null) throw 'incorrect initialization of "typeofValue"';
-    typeofValue = true;
-    if (!typeofValue) throw 'incorrect value in "typeofValue"';
-    typeofValue = false;
-    if (typeofValue) throw 'incorrect value in "typeofValue"';
-
-    if (varValue != null) throw 'incorrect initialization of "varValue"';
-    varValue = true;
-    if (!varValue) throw 'incorrect value in "varValue"';
-    varValue = false;
-    if (varValue) throw 'incorrect value in "varValue"';
-
-    if (voidValue != null) throw 'incorrect initialization of "voidValue"';
-    voidValue = true;
-    if (!voidValue) throw 'incorrect value in "voidValue"';
-    voidValue = false;
-    if (voidValue) throw 'incorrect value in "voidValue"';
-
-    if (whileValue != null) throw 'incorrect initialization of "whileValue"';
-    whileValue = true;
-    if (!whileValue) throw 'incorrect value in "whileValue"';
-    whileValue = false;
-    if (whileValue) throw 'incorrect value in "whileValue"';
-
-    if (withValue != null) throw 'incorrect initialization of "withValue"';
-    withValue = true;
-    if (!withValue) throw 'incorrect value in "withValue"';
-    withValue = false;
-    if (withValue) throw 'incorrect value in "withValue"';
-
-    if (yieldValue != null) throw 'incorrect initialization of "yieldValue"';
-    yieldValue = true;
-    if (!yieldValue) throw 'incorrect value in "yieldValue"';
-    yieldValue = false;
-    if (yieldValue) throw 'incorrect value in "yieldValue"';
-  }
-}
-
-/// Called once with an instance of NativeClassWithOddNames making it easy
-/// to inline accessors.
-testObjectStronglyTyped(object) {
-  if (object.breakValue == null)
-    throw 'incorrect initialization of "breakValue"';
-  object.breakValue = true;
-  if (!object.breakValue) throw 'incorrect value in "breakValue"';
-  object.breakValue = false;
-  if (object.breakValue) throw 'incorrect value in "breakValue"';
-
-  if (object.caseValue == null) throw 'incorrect initialization of "caseValue"';
-  object.caseValue = true;
-  if (!object.caseValue) throw 'incorrect value in "caseValue"';
-  object.caseValue = false;
-  if (object.caseValue) throw 'incorrect value in "caseValue"';
-
-  if (object.catchValue == null)
-    throw 'incorrect initialization of "catchValue"';
-  object.catchValue = true;
-  if (!object.catchValue) throw 'incorrect value in "catchValue"';
-  object.catchValue = false;
-  if (object.catchValue) throw 'incorrect value in "catchValue"';
-
-  if (object.classValue == null)
-    throw 'incorrect initialization of "classValue"';
-  object.classValue = true;
-  if (!object.classValue) throw 'incorrect value in "classValue"';
-  object.classValue = false;
-  if (object.classValue) throw 'incorrect value in "classValue"';
-
-  if (object.constValue == null)
-    throw 'incorrect initialization of "constValue"';
-  object.constValue = true;
-  if (!object.constValue) throw 'incorrect value in "constValue"';
-  object.constValue = false;
-  if (object.constValue) throw 'incorrect value in "constValue"';
-
-  if (object.continueValue == null)
-    throw 'incorrect initialization of "continueValue"';
-  object.continueValue = true;
-  if (!object.continueValue) throw 'incorrect value in "continueValue"';
-  object.continueValue = false;
-  if (object.continueValue) throw 'incorrect value in "continueValue"';
-
-  if (object.debuggerValue == null)
-    throw 'incorrect initialization of "debuggerValue"';
-  object.debuggerValue = true;
-  if (!object.debuggerValue) throw 'incorrect value in "debuggerValue"';
-  object.debuggerValue = false;
-  if (object.debuggerValue) throw 'incorrect value in "debuggerValue"';
-
-  if (object.defaultValue == null)
-    throw 'incorrect initialization of "defaultValue"';
-  object.defaultValue = true;
-  if (!object.defaultValue) throw 'incorrect value in "defaultValue"';
-  object.defaultValue = false;
-  if (object.defaultValue) throw 'incorrect value in "defaultValue"';
-
-  if (object.deleteValue == null)
-    throw 'incorrect initialization of "deleteValue"';
-  object.deleteValue = true;
-  if (!object.deleteValue) throw 'incorrect value in "deleteValue"';
-  object.deleteValue = false;
-  if (object.deleteValue) throw 'incorrect value in "deleteValue"';
-
-  if (object.doValue == null) throw 'incorrect initialization of "doValue"';
-  object.doValue = true;
-  if (!object.doValue) throw 'incorrect value in "doValue"';
-  object.doValue = false;
-  if (object.doValue) throw 'incorrect value in "doValue"';
-
-  if (object.elseValue == null) throw 'incorrect initialization of "elseValue"';
-  object.elseValue = true;
-  if (!object.elseValue) throw 'incorrect value in "elseValue"';
-  object.elseValue = false;
-  if (object.elseValue) throw 'incorrect value in "elseValue"';
-
-  if (object.enumValue == null) throw 'incorrect initialization of "enumValue"';
-  object.enumValue = true;
-  if (!object.enumValue) throw 'incorrect value in "enumValue"';
-  object.enumValue = false;
-  if (object.enumValue) throw 'incorrect value in "enumValue"';
-
-  if (object.exportValue == null)
-    throw 'incorrect initialization of "exportValue"';
-  object.exportValue = true;
-  if (!object.exportValue) throw 'incorrect value in "exportValue"';
-  object.exportValue = false;
-  if (object.exportValue) throw 'incorrect value in "exportValue"';
-
-  if (object.extendsValue == null)
-    throw 'incorrect initialization of "extendsValue"';
-  object.extendsValue = true;
-  if (!object.extendsValue) throw 'incorrect value in "extendsValue"';
-  object.extendsValue = false;
-  if (object.extendsValue) throw 'incorrect value in "extendsValue"';
-
-  if (object.falseValue == null)
-    throw 'incorrect initialization of "falseValue"';
-  object.falseValue = true;
-  if (!object.falseValue) throw 'incorrect value in "falseValue"';
-  object.falseValue = false;
-  if (object.falseValue) throw 'incorrect value in "falseValue"';
-
-  if (object.finallyValue == null)
-    throw 'incorrect initialization of "finallyValue"';
-  object.finallyValue = true;
-  if (!object.finallyValue) throw 'incorrect value in "finallyValue"';
-  object.finallyValue = false;
-  if (object.finallyValue) throw 'incorrect value in "finallyValue"';
-
-  if (object.forValue == null) throw 'incorrect initialization of "forValue"';
-  object.forValue = true;
-  if (!object.forValue) throw 'incorrect value in "forValue"';
-  object.forValue = false;
-  if (object.forValue) throw 'incorrect value in "forValue"';
-
-  if (object.functionValue == null)
-    throw 'incorrect initialization of "functionValue"';
-  object.functionValue = true;
-  if (!object.functionValue) throw 'incorrect value in "functionValue"';
-  object.functionValue = false;
-  if (object.functionValue) throw 'incorrect value in "functionValue"';
-
-  if (object.ifValue == null) throw 'incorrect initialization of "ifValue"';
-  object.ifValue = true;
-  if (!object.ifValue) throw 'incorrect value in "ifValue"';
-  object.ifValue = false;
-  if (object.ifValue) throw 'incorrect value in "ifValue"';
-
-  if (object.implementsValue == null)
-    throw 'incorrect initialization of "implementsValue"';
-  object.implementsValue = true;
-  if (!object.implementsValue) throw 'incorrect value in "implementsValue"';
-  object.implementsValue = false;
-  if (object.implementsValue) throw 'incorrect value in "implementsValue"';
-
-  if (object.importValue == null)
-    throw 'incorrect initialization of "importValue"';
-  object.importValue = true;
-  if (!object.importValue) throw 'incorrect value in "importValue"';
-  object.importValue = false;
-  if (object.importValue) throw 'incorrect value in "importValue"';
-
-  if (object.inValue == null) throw 'incorrect initialization of "inValue"';
-  object.inValue = true;
-  if (!object.inValue) throw 'incorrect value in "inValue"';
-  object.inValue = false;
-  if (object.inValue) throw 'incorrect value in "inValue"';
-
-  if (object.instanceofValue == null)
-    throw 'incorrect initialization of "instanceofValue"';
-  object.instanceofValue = true;
-  if (!object.instanceofValue) throw 'incorrect value in "instanceofValue"';
-  object.instanceofValue = false;
-  if (object.instanceofValue) throw 'incorrect value in "instanceofValue"';
-
-  if (object.interfaceValue == null)
-    throw 'incorrect initialization of "interfaceValue"';
-  object.interfaceValue = true;
-  if (!object.interfaceValue) throw 'incorrect value in "interfaceValue"';
-  object.interfaceValue = false;
-  if (object.interfaceValue) throw 'incorrect value in "interfaceValue"';
-
-  if (object.letValue == null) throw 'incorrect initialization of "letValue"';
-  object.letValue = true;
-  if (!object.letValue) throw 'incorrect value in "letValue"';
-  object.letValue = false;
-  if (object.letValue) throw 'incorrect value in "letValue"';
-
-  if (object.newValue == null) throw 'incorrect initialization of "newValue"';
-  object.newValue = true;
-  if (!object.newValue) throw 'incorrect value in "newValue"';
-  object.newValue = false;
-  if (object.newValue) throw 'incorrect value in "newValue"';
-
-  if (object.nullValue == null) throw 'incorrect initialization of "nullValue"';
-  object.nullValue = true;
-  if (!object.nullValue) throw 'incorrect value in "nullValue"';
-  object.nullValue = false;
-  if (object.nullValue) throw 'incorrect value in "nullValue"';
-
-  if (object.packageValue == null)
-    throw 'incorrect initialization of "packageValue"';
-  object.packageValue = true;
-  if (!object.packageValue) throw 'incorrect value in "packageValue"';
-  object.packageValue = false;
-  if (object.packageValue) throw 'incorrect value in "packageValue"';
-
-  if (object.privateValue == null)
-    throw 'incorrect initialization of "privateValue"';
-  object.privateValue = true;
-  if (!object.privateValue) throw 'incorrect value in "privateValue"';
-  object.privateValue = false;
-  if (object.privateValue) throw 'incorrect value in "privateValue"';
-
-  if (object.protectedValue == null)
-    throw 'incorrect initialization of "protectedValue"';
-  object.protectedValue = true;
-  if (!object.protectedValue) throw 'incorrect value in "protectedValue"';
-  object.protectedValue = false;
-  if (object.protectedValue) throw 'incorrect value in "protectedValue"';
-
-  if (object.publicValue == null)
-    throw 'incorrect initialization of "publicValue"';
-  object.publicValue = true;
-  if (!object.publicValue) throw 'incorrect value in "publicValue"';
-  object.publicValue = false;
-  if (object.publicValue) throw 'incorrect value in "publicValue"';
-
-  if (object.returnValue == null)
-    throw 'incorrect initialization of "returnValue"';
-  object.returnValue = true;
-  if (!object.returnValue) throw 'incorrect value in "returnValue"';
-  object.returnValue = false;
-  if (object.returnValue) throw 'incorrect value in "returnValue"';
-
-  if (object.staticValue == null)
-    throw 'incorrect initialization of "staticValue"';
-  object.staticValue = true;
-  if (!object.staticValue) throw 'incorrect value in "staticValue"';
-  object.staticValue = false;
-  if (object.staticValue) throw 'incorrect value in "staticValue"';
-
-  if (object.superValue == null)
-    throw 'incorrect initialization of "superValue"';
-  object.superValue = true;
-  if (!object.superValue) throw 'incorrect value in "superValue"';
-  object.superValue = false;
-  if (object.superValue) throw 'incorrect value in "superValue"';
-
-  if (object.switchValue == null)
-    throw 'incorrect initialization of "switchValue"';
-  object.switchValue = true;
-  if (!object.switchValue) throw 'incorrect value in "switchValue"';
-  object.switchValue = false;
-  if (object.switchValue) throw 'incorrect value in "switchValue"';
-
-  if (object.thisValue == null) throw 'incorrect initialization of "thisValue"';
-  object.thisValue = true;
-  if (!object.thisValue) throw 'incorrect value in "thisValue"';
-  object.thisValue = false;
-  if (object.thisValue) throw 'incorrect value in "thisValue"';
-
-  if (object.throwValue == null)
-    throw 'incorrect initialization of "throwValue"';
-  object.throwValue = true;
-  if (!object.throwValue) throw 'incorrect value in "throwValue"';
-  object.throwValue = false;
-  if (object.throwValue) throw 'incorrect value in "throwValue"';
-
-  if (object.trueValue == null) throw 'incorrect initialization of "trueValue"';
-  object.trueValue = true;
-  if (!object.trueValue) throw 'incorrect value in "trueValue"';
-  object.trueValue = false;
-  if (object.trueValue) throw 'incorrect value in "trueValue"';
-
-  if (object.tryValue == null) throw 'incorrect initialization of "tryValue"';
-  object.tryValue = true;
-  if (!object.tryValue) throw 'incorrect value in "tryValue"';
-  object.tryValue = false;
-  if (object.tryValue) throw 'incorrect value in "tryValue"';
-
-  if (object.typeofValue == null)
-    throw 'incorrect initialization of "typeofValue"';
-  object.typeofValue = true;
-  if (!object.typeofValue) throw 'incorrect value in "typeofValue"';
-  object.typeofValue = false;
-  if (object.typeofValue) throw 'incorrect value in "typeofValue"';
-
-  if (object.varValue == null) throw 'incorrect initialization of "varValue"';
-  object.varValue = true;
-  if (!object.varValue) throw 'incorrect value in "varValue"';
-  object.varValue = false;
-  if (object.varValue) throw 'incorrect value in "varValue"';
-
-  if (object.voidValue == null) throw 'incorrect initialization of "voidValue"';
-  object.voidValue = true;
-  if (!object.voidValue) throw 'incorrect value in "voidValue"';
-  object.voidValue = false;
-  if (object.voidValue) throw 'incorrect value in "voidValue"';
-
-  if (object.whileValue == null)
-    throw 'incorrect initialization of "whileValue"';
-  object.whileValue = true;
-  if (!object.whileValue) throw 'incorrect value in "whileValue"';
-  object.whileValue = false;
-  if (object.whileValue) throw 'incorrect value in "whileValue"';
-
-  if (object.withValue == null) throw 'incorrect initialization of "withValue"';
-  object.withValue = true;
-  if (!object.withValue) throw 'incorrect value in "withValue"';
-  object.withValue = false;
-  if (object.withValue) throw 'incorrect value in "withValue"';
-
-  if (object.yieldValue == null)
-    throw 'incorrect initialization of "yieldValue"';
-  object.yieldValue = true;
-  if (!object.yieldValue) throw 'incorrect value in "yieldValue"';
-  object.yieldValue = false;
-  if (object.yieldValue) throw 'incorrect value in "yieldValue"';
-}
-
-/// Called multiple times with arguments that are hard to track in type
-/// inference making it hard to inline accessors.
-testObjectWeaklyTyped(object) {
-  object = object[0];
-  if (object == 'fisk') return;
-  if (object.breakValue == null)
-    throw 'incorrect initialization of "breakValue"';
-  object.breakValue = true;
-  if (!object.breakValue) throw 'incorrect value in "breakValue"';
-  object.breakValue = false;
-  if (object.breakValue) throw 'incorrect value in "breakValue"';
-
-  if (object.caseValue == null) throw 'incorrect initialization of "caseValue"';
-  object.caseValue = true;
-  if (!object.caseValue) throw 'incorrect value in "caseValue"';
-  object.caseValue = false;
-  if (object.caseValue) throw 'incorrect value in "caseValue"';
-
-  if (object.catchValue == null)
-    throw 'incorrect initialization of "catchValue"';
-  object.catchValue = true;
-  if (!object.catchValue) throw 'incorrect value in "catchValue"';
-  object.catchValue = false;
-  if (object.catchValue) throw 'incorrect value in "catchValue"';
-
-  if (object.classValue == null)
-    throw 'incorrect initialization of "classValue"';
-  object.classValue = true;
-  if (!object.classValue) throw 'incorrect value in "classValue"';
-  object.classValue = false;
-  if (object.classValue) throw 'incorrect value in "classValue"';
-
-  if (object.constValue == null)
-    throw 'incorrect initialization of "constValue"';
-  object.constValue = true;
-  if (!object.constValue) throw 'incorrect value in "constValue"';
-  object.constValue = false;
-  if (object.constValue) throw 'incorrect value in "constValue"';
-
-  if (object.continueValue == null)
-    throw 'incorrect initialization of "continueValue"';
-  object.continueValue = true;
-  if (!object.continueValue) throw 'incorrect value in "continueValue"';
-  object.continueValue = false;
-  if (object.continueValue) throw 'incorrect value in "continueValue"';
-
-  if (object.debuggerValue == null)
-    throw 'incorrect initialization of "debuggerValue"';
-  object.debuggerValue = true;
-  if (!object.debuggerValue) throw 'incorrect value in "debuggerValue"';
-  object.debuggerValue = false;
-  if (object.debuggerValue) throw 'incorrect value in "debuggerValue"';
-
-  if (object.defaultValue == null)
-    throw 'incorrect initialization of "defaultValue"';
-  object.defaultValue = true;
-  if (!object.defaultValue) throw 'incorrect value in "defaultValue"';
-  object.defaultValue = false;
-  if (object.defaultValue) throw 'incorrect value in "defaultValue"';
-
-  if (object.deleteValue == null)
-    throw 'incorrect initialization of "deleteValue"';
-  object.deleteValue = true;
-  if (!object.deleteValue) throw 'incorrect value in "deleteValue"';
-  object.deleteValue = false;
-  if (object.deleteValue) throw 'incorrect value in "deleteValue"';
-
-  if (object.doValue == null) throw 'incorrect initialization of "doValue"';
-  object.doValue = true;
-  if (!object.doValue) throw 'incorrect value in "doValue"';
-  object.doValue = false;
-  if (object.doValue) throw 'incorrect value in "doValue"';
-
-  if (object.elseValue == null) throw 'incorrect initialization of "elseValue"';
-  object.elseValue = true;
-  if (!object.elseValue) throw 'incorrect value in "elseValue"';
-  object.elseValue = false;
-  if (object.elseValue) throw 'incorrect value in "elseValue"';
-
-  if (object.enumValue == null) throw 'incorrect initialization of "enumValue"';
-  object.enumValue = true;
-  if (!object.enumValue) throw 'incorrect value in "enumValue"';
-  object.enumValue = false;
-  if (object.enumValue) throw 'incorrect value in "enumValue"';
-
-  if (object.exportValue == null)
-    throw 'incorrect initialization of "exportValue"';
-  object.exportValue = true;
-  if (!object.exportValue) throw 'incorrect value in "exportValue"';
-  object.exportValue = false;
-  if (object.exportValue) throw 'incorrect value in "exportValue"';
-
-  if (object.extendsValue == null)
-    throw 'incorrect initialization of "extendsValue"';
-  object.extendsValue = true;
-  if (!object.extendsValue) throw 'incorrect value in "extendsValue"';
-  object.extendsValue = false;
-  if (object.extendsValue) throw 'incorrect value in "extendsValue"';
-
-  if (object.falseValue == null)
-    throw 'incorrect initialization of "falseValue"';
-  object.falseValue = true;
-  if (!object.falseValue) throw 'incorrect value in "falseValue"';
-  object.falseValue = false;
-  if (object.falseValue) throw 'incorrect value in "falseValue"';
-
-  if (object.finallyValue == null)
-    throw 'incorrect initialization of "finallyValue"';
-  object.finallyValue = true;
-  if (!object.finallyValue) throw 'incorrect value in "finallyValue"';
-  object.finallyValue = false;
-  if (object.finallyValue) throw 'incorrect value in "finallyValue"';
-
-  if (object.forValue == null) throw 'incorrect initialization of "forValue"';
-  object.forValue = true;
-  if (!object.forValue) throw 'incorrect value in "forValue"';
-  object.forValue = false;
-  if (object.forValue) throw 'incorrect value in "forValue"';
-
-  if (object.functionValue == null)
-    throw 'incorrect initialization of "functionValue"';
-  object.functionValue = true;
-  if (!object.functionValue) throw 'incorrect value in "functionValue"';
-  object.functionValue = false;
-  if (object.functionValue) throw 'incorrect value in "functionValue"';
-
-  if (object.ifValue == null) throw 'incorrect initialization of "ifValue"';
-  object.ifValue = true;
-  if (!object.ifValue) throw 'incorrect value in "ifValue"';
-  object.ifValue = false;
-  if (object.ifValue) throw 'incorrect value in "ifValue"';
-
-  if (object.implementsValue == null)
-    throw 'incorrect initialization of "implementsValue"';
-  object.implementsValue = true;
-  if (!object.implementsValue) throw 'incorrect value in "implementsValue"';
-  object.implementsValue = false;
-  if (object.implementsValue) throw 'incorrect value in "implementsValue"';
-
-  if (object.importValue == null)
-    throw 'incorrect initialization of "importValue"';
-  object.importValue = true;
-  if (!object.importValue) throw 'incorrect value in "importValue"';
-  object.importValue = false;
-  if (object.importValue) throw 'incorrect value in "importValue"';
-
-  if (object.inValue == null) throw 'incorrect initialization of "inValue"';
-  object.inValue = true;
-  if (!object.inValue) throw 'incorrect value in "inValue"';
-  object.inValue = false;
-  if (object.inValue) throw 'incorrect value in "inValue"';
-
-  if (object.instanceofValue == null)
-    throw 'incorrect initialization of "instanceofValue"';
-  object.instanceofValue = true;
-  if (!object.instanceofValue) throw 'incorrect value in "instanceofValue"';
-  object.instanceofValue = false;
-  if (object.instanceofValue) throw 'incorrect value in "instanceofValue"';
-
-  if (object.interfaceValue == null)
-    throw 'incorrect initialization of "interfaceValue"';
-  object.interfaceValue = true;
-  if (!object.interfaceValue) throw 'incorrect value in "interfaceValue"';
-  object.interfaceValue = false;
-  if (object.interfaceValue) throw 'incorrect value in "interfaceValue"';
-
-  if (object.letValue == null) throw 'incorrect initialization of "letValue"';
-  object.letValue = true;
-  if (!object.letValue) throw 'incorrect value in "letValue"';
-  object.letValue = false;
-  if (object.letValue) throw 'incorrect value in "letValue"';
-
-  if (object.newValue == null) throw 'incorrect initialization of "newValue"';
-  object.newValue = true;
-  if (!object.newValue) throw 'incorrect value in "newValue"';
-  object.newValue = false;
-  if (object.newValue) throw 'incorrect value in "newValue"';
-
-  if (object.nullValue == null) throw 'incorrect initialization of "nullValue"';
-  object.nullValue = true;
-  if (!object.nullValue) throw 'incorrect value in "nullValue"';
-  object.nullValue = false;
-  if (object.nullValue) throw 'incorrect value in "nullValue"';
-
-  if (object.packageValue == null)
-    throw 'incorrect initialization of "packageValue"';
-  object.packageValue = true;
-  if (!object.packageValue) throw 'incorrect value in "packageValue"';
-  object.packageValue = false;
-  if (object.packageValue) throw 'incorrect value in "packageValue"';
-
-  if (object.privateValue == null)
-    throw 'incorrect initialization of "privateValue"';
-  object.privateValue = true;
-  if (!object.privateValue) throw 'incorrect value in "privateValue"';
-  object.privateValue = false;
-  if (object.privateValue) throw 'incorrect value in "privateValue"';
-
-  if (object.protectedValue == null)
-    throw 'incorrect initialization of "protectedValue"';
-  object.protectedValue = true;
-  if (!object.protectedValue) throw 'incorrect value in "protectedValue"';
-  object.protectedValue = false;
-  if (object.protectedValue) throw 'incorrect value in "protectedValue"';
-
-  if (object.publicValue == null)
-    throw 'incorrect initialization of "publicValue"';
-  object.publicValue = true;
-  if (!object.publicValue) throw 'incorrect value in "publicValue"';
-  object.publicValue = false;
-  if (object.publicValue) throw 'incorrect value in "publicValue"';
-
-  if (object.returnValue == null)
-    throw 'incorrect initialization of "returnValue"';
-  object.returnValue = true;
-  if (!object.returnValue) throw 'incorrect value in "returnValue"';
-  object.returnValue = false;
-  if (object.returnValue) throw 'incorrect value in "returnValue"';
-
-  if (object.staticValue == null)
-    throw 'incorrect initialization of "staticValue"';
-  object.staticValue = true;
-  if (!object.staticValue) throw 'incorrect value in "staticValue"';
-  object.staticValue = false;
-  if (object.staticValue) throw 'incorrect value in "staticValue"';
-
-  if (object.superValue == null)
-    throw 'incorrect initialization of "superValue"';
-  object.superValue = true;
-  if (!object.superValue) throw 'incorrect value in "superValue"';
-  object.superValue = false;
-  if (object.superValue) throw 'incorrect value in "superValue"';
-
-  if (object.switchValue == null)
-    throw 'incorrect initialization of "switchValue"';
-  object.switchValue = true;
-  if (!object.switchValue) throw 'incorrect value in "switchValue"';
-  object.switchValue = false;
-  if (object.switchValue) throw 'incorrect value in "switchValue"';
-
-  if (object.thisValue == null) throw 'incorrect initialization of "thisValue"';
-  object.thisValue = true;
-  if (!object.thisValue) throw 'incorrect value in "thisValue"';
-  object.thisValue = false;
-  if (object.thisValue) throw 'incorrect value in "thisValue"';
-
-  if (object.throwValue == null)
-    throw 'incorrect initialization of "throwValue"';
-  object.throwValue = true;
-  if (!object.throwValue) throw 'incorrect value in "throwValue"';
-  object.throwValue = false;
-  if (object.throwValue) throw 'incorrect value in "throwValue"';
-
-  if (object.trueValue == null) throw 'incorrect initialization of "trueValue"';
-  object.trueValue = true;
-  if (!object.trueValue) throw 'incorrect value in "trueValue"';
-  object.trueValue = false;
-  if (object.trueValue) throw 'incorrect value in "trueValue"';
-
-  if (object.tryValue == null) throw 'incorrect initialization of "tryValue"';
-  object.tryValue = true;
-  if (!object.tryValue) throw 'incorrect value in "tryValue"';
-  object.tryValue = false;
-  if (object.tryValue) throw 'incorrect value in "tryValue"';
-
-  if (object.typeofValue == null)
-    throw 'incorrect initialization of "typeofValue"';
-  object.typeofValue = true;
-  if (!object.typeofValue) throw 'incorrect value in "typeofValue"';
-  object.typeofValue = false;
-  if (object.typeofValue) throw 'incorrect value in "typeofValue"';
-
-  if (object.varValue == null) throw 'incorrect initialization of "varValue"';
-  object.varValue = true;
-  if (!object.varValue) throw 'incorrect value in "varValue"';
-  object.varValue = false;
-  if (object.varValue) throw 'incorrect value in "varValue"';
-
-  if (object.voidValue == null) throw 'incorrect initialization of "voidValue"';
-  object.voidValue = true;
-  if (!object.voidValue) throw 'incorrect value in "voidValue"';
-  object.voidValue = false;
-  if (object.voidValue) throw 'incorrect value in "voidValue"';
-
-  if (object.whileValue == null)
-    throw 'incorrect initialization of "whileValue"';
-  object.whileValue = true;
-  if (!object.whileValue) throw 'incorrect value in "whileValue"';
-  object.whileValue = false;
-  if (object.whileValue) throw 'incorrect value in "whileValue"';
-
-  if (object.withValue == null) throw 'incorrect initialization of "withValue"';
-  object.withValue = true;
-  if (!object.withValue) throw 'incorrect value in "withValue"';
-  object.withValue = false;
-  if (object.withValue) throw 'incorrect value in "withValue"';
-
-  if (object.yieldValue == null)
-    throw 'incorrect initialization of "yieldValue"';
-  object.yieldValue = true;
-  if (!object.yieldValue) throw 'incorrect value in "yieldValue"';
-  object.yieldValue = false;
-  if (object.yieldValue) throw 'incorrect value in "yieldValue"';
-}
-
-NativeClassWithOddNames makeNativeClassWithOddNames() native;
-
-setup() {
-  JS('', r"""
-(function(){
-  function NativeClassWithOddNames() {}
-  self.makeNativeClassWithOddNames = function() {return new NativeClassWithOddNames()};
-  self.nativeConstructor(NativeClassWithOddNames);
-})()""");
-  applyTestExtensions(['NativeClassWithOddNames']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-  var object = makeNativeClassWithOddNames();
-  object.testMyFields();
-  testObjectStronglyTyped(object);
-  testObjectWeaklyTyped([object]);
-  testObjectWeaklyTyped(['fisk']);
-  testObjectWeaklyTyped([new ClassWithOddNames()..testMyFields()]);
-}
diff --git a/tests/web_2/native/optimization_hints_test.dart b/tests/web_2/native/optimization_hints_test.dart
deleted file mode 100644
index 5b73d797a74..00000000000
--- a/tests/web_2/native/optimization_hints_test.dart
+++ /dev/null
@@ -1,223 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'dart:_foreign_helper' show JS;
-
-import 'package:expect/expect.dart';
-
-var x;
-
-foo(c) {
-  x = "in foo function";
-  c.c_field = x;
-}
-
-@pragma('dart2js:noSideEffects')
-@pragma('dart2js:noInline')
-bar(d) {
-  x = "in bar function";
-  d.d_field = x;
-}
-
-class C {
-  var c_field;
-  m() => c_field;
-}
-
-class D {
-  var d_field;
-  m() => d_field;
-}
-
-@pragma('dart2js:noSideEffects')
-@pragma('dart2js:noInline')
-@pragma('dart2js:noThrows')
-baz() {
-  throw 'in baz function';
-}
-
-@pragma('dart2js:noInline')
-geeNoInline() {
-  // Use `gee` several times, so `gee` isn't used only once (and thus inlinable
-  // independently of its size).
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-  gee();
-}
-
-@pragma('dart2js:tryInline')
-// Big function that would normally not be inlinable.
-gee([c]) {
-  if (c != null) {
-    x = "in gee function";
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-    geeNoInline();
-  }
-}
-
-main() {
-  JS('', 'String("in main function")');
-  var c;
-  if (new DateTime.now().millisecondsSinceEpoch != 42) {
-    c = new C();
-    print(c.m());
-    foo(c);
-    print(c.m());
-  } else {
-    var d = new D();
-    print(d.m());
-    bar(d);
-    print(d.m());
-  }
-  print(c.m());
-  simple();
-  noinline();
-  baz(); // This call should be eliminated by the optimizer.
-  gee(new C());
-  print(x);
-  check(JS('', 'arguments.callee'));
-}
-
-@pragma('dart2js:noInline')
-check(func) {
-  JS('', 'String("in check function")');
-  var source = JS('String', 'String(#)', func);
-  print(source);
-  Expect.isTrue(source.contains('"in main function"'), "should contain 'main'");
-  Expect.isTrue(
-      source.contains('"in simple function"'), "should inline 'simple'");
-  Expect.isTrue(source.contains('"in foo function"'), "should inline 'foo'");
-  Expect.isFalse(
-      source.contains('"in bar function"'), "should not inline 'bar'");
-  Expect.isFalse(
-      source.contains('"in check function"'), "should not inline 'check'");
-  Expect.isFalse(source.contains('"in noinline function"'),
-      "should not inline 'noinline'");
-  Expect.equals(2, new RegExp(r'\.c_field').allMatches(source).length,
-      "should contain r'\.c_field' exactly twice");
-  Expect.isFalse(
-      source.contains('.d_field'), "should not contain r'\.d_field'");
-  Expect.isTrue(source.contains('"in gee function"'), "must inline 'gee'");
-}
-
-simple() {
-  JS('', 'String("in simple function")');
-}
-
-@pragma('dart2js:noInline')
-noinline() {
-  JS('', 'String("in noinline function")');
-}
diff --git a/tests/web_2/native/rti_only_native_test.dart b/tests/web_2/native/rti_only_native_test.dart
deleted file mode 100644
index 71d5e90b281..00000000000
--- a/tests/web_2/native/rti_only_native_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for a bug that was caused by uninstantiated classes being
-// added to emitted classes by runtime-type system.
-// See my explanation in https://codereview.chromium.org/14018036/.
-//   -- ahe
-
-import "dart:_js_helper";
-
-@Native("A")
-class A {
-  // Just making sure the field name is unique.
-  var rti_only_native_test_field;
-}
-
-typedef fisk();
-
-main() {
-  void foo(A x) {}
-  var map = <String, dynamic>{'a': 0, 'b': main};
-  try {
-    map.values.forEach((x) => x.rti_only_native_test_field);
-  } finally {
-    print(main is fisk);
-    return;
-  }
-}
diff --git a/tests/web_2/native/runtimetype_test.dart b/tests/web_2/native/runtimetype_test.dart
deleted file mode 100644
index 62911e2c25d..00000000000
--- a/tests/web_2/native/runtimetype_test.dart
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-
-// Test to see runtimeType works on native classes and does not use the native
-// constructor name.
-
-@Native("TAGX")
-class A {}
-
-@Native("TAGY")
-class B extends A {}
-
-makeA() native;
-makeB() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  // This code is inside 'setup' and so not accessible from the global scope.
-  function inherits(child, parent) {
-    function tmp() {};
-    tmp.prototype = parent.prototype;
-    child.prototype = new tmp();
-    child.prototype.constructor = child;
-  }
-
-  function TAGX(){}
-  function TAGY(){}
-  inherits(TAGY, TAGX);
-
-  self.makeA = function(){return new TAGX()};
-  self.makeB = function(){return new TAGY()};
-
-  self.nativeConstructor(TAGX);
-  self.nativeConstructor(TAGY);
-})()""");
-  applyTestExtensions(['TAGX', 'TAGY']);
-}
-
-testDynamicContext() {
-  var a = makeA();
-  var b = makeB();
-
-  var aT = a.runtimeType;
-  var bT = b.runtimeType;
-
-  Expect.notEquals('TAGX', '$aT');
-  Expect.notEquals('TAGY', '$bT');
-}
-
-testStaticContext() {
-  var a = JS('A', '#', makeA()); // Force compiler to know type.
-  var b = JS('B', '#', makeB());
-
-  var aT = a.runtimeType;
-  var bT = b.runtimeType;
-
-  Expect.notEquals('TAGX', '$aT');
-  Expect.notEquals('TAGY', '$bT');
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  testDynamicContext();
-  testStaticContext();
-}
diff --git a/tests/web_2/native/static_interop_erasure/factory_stub_lib.dart b/tests/web_2/native/static_interop_erasure/factory_stub_lib.dart
deleted file mode 100644
index 414243c2c69..00000000000
--- a/tests/web_2/native/static_interop_erasure/factory_stub_lib.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-@JS()
-library factory_stub_lib;
-
-import 'package:js/js.dart';
-
-import 'factory_stub_test.dart';
-
-@JS('NativeClass')
-@staticInterop
-class StaticNativeClassCopy {
-  external factory StaticNativeClassCopy();
-  factory StaticNativeClassCopy.nestedFactory() {
-    StaticNativeClass.nestedFactory();
-    return StaticNativeClassCopy();
-  }
-}
diff --git a/tests/web_2/native/static_interop_erasure/factory_stub_test.dart b/tests/web_2/native/static_interop_erasure/factory_stub_test.dart
deleted file mode 100644
index 77b61cd40a6..00000000000
--- a/tests/web_2/native/static_interop_erasure/factory_stub_test.dart
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that factory methods with bodies are stubbed correctly in static interop
-// type erasure.
-
-@JS()
-library factory_stub_test;
-
-import 'dart:_interceptors' show JavaScriptObject;
-
-import 'package:js/js.dart';
-
-import '../native_testing.dart' hide JS;
-import '../native_testing.dart' as native_testing;
-import 'factory_stub_lib.dart';
-
-NativeClass makeNativeClass() native;
-
-@Native('NativeClass')
-class NativeClass extends JavaScriptObject {
-  factory NativeClass() => makeNativeClass();
-}
-
-@JS('NativeClass')
-@staticInterop
-class StaticNativeClass {
-  external factory StaticNativeClass();
-  factory StaticNativeClass.redirectingFactory() = StaticNativeClass;
-  factory StaticNativeClass.simpleFactory() => StaticNativeClass();
-  factory StaticNativeClass.factoryWithParam(
-          StaticNativeClass staticNativeClass) =>
-      staticNativeClass;
-  // This and `StaticNativeClassCopy.nestedFactory` exist to ensure that we
-  // cover the case where invocations on factories are visible before their
-  // declarations in the AST. This will test whether we correctly create the
-  // stub even if we haven't visited the declaration yet. It will also test the
-  // case where stubs need to be added before function bodies are visited so
-  // that mutually recursive factories can resolve.
-  factory StaticNativeClass.nestedFactory({bool callCopyFactory = false}) {
-    if (callCopyFactory) StaticNativeClassCopy.nestedFactory();
-    return StaticNativeClass();
-  }
-}
-
-void main() {
-  nativeTesting();
-  native_testing.JS('', r'''
-    (function(){
-      function NativeClass() {}
-      self.NativeClass = NativeClass;
-      self.makeNativeClass = function(){return new NativeClass()};
-      self.nativeConstructor(NativeClass);
-    })()
-  ''');
-  applyTestExtensions(['NativeClass']);
-
-  // Make the Native class live.
-  NativeClass();
-  // Invoke factories and ensure they're typed correctly through assignment.
-  StaticNativeClass staticNativeClass = StaticNativeClass.redirectingFactory();
-  staticNativeClass = StaticNativeClass.simpleFactory();
-  staticNativeClass = StaticNativeClass.factoryWithParam(staticNativeClass);
-  staticNativeClass = StaticNativeClass.nestedFactory(callCopyFactory: true);
-}
diff --git a/tests/web_2/native/static_interop_erasure/type_test.dart b/tests/web_2/native/static_interop_erasure/type_test.dart
deleted file mode 100644
index 8c0d3f8e471..00000000000
--- a/tests/web_2/native/static_interop_erasure/type_test.dart
+++ /dev/null
@@ -1,232 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that the type and subtyping relationships between static interop,
-// non-static interop, and Native classes are well-formed.
-
-@JS()
-library type_test;
-
-import 'dart:_interceptors' show JavaScriptObject;
-
-import 'package:expect/minitest.dart';
-import 'package:js/js.dart';
-
-import '../native_testing.dart' hide JS;
-import '../native_testing.dart' as native_testing;
-
-NativeClass makeNativeClass() native;
-
-@Native('NativeClass')
-class NativeClass extends JavaScriptObject {
-  factory NativeClass() => makeNativeClass();
-}
-
-@JS('NativeClass')
-@staticInterop
-class StaticNativeClass {
-  external factory StaticNativeClass();
-}
-
-@JS()
-class JSClass {
-  external JSClass();
-}
-
-@JS('JSClass')
-@staticInterop
-class StaticJSClass {
-  external factory StaticJSClass();
-}
-
-@JS()
-@anonymous
-class AnonymousClass {
-  external factory AnonymousClass();
-}
-
-@JS()
-@staticInterop
-class GenericStaticJSClass<T> {}
-
-NativeClass returnNativeClass() => throw '';
-
-StaticNativeClass returnStaticNativeClass() => throw '';
-
-JSClass returnJSClass() => throw '';
-
-StaticJSClass returnStaticJSClass() => throw '';
-
-AnonymousClass returnAnonymousClass() => throw '';
-
-GenericStaticJSClass<int> returnGenericStaticJSClassInt() => throw '';
-
-void main() {
-  nativeTesting();
-  native_testing.JS('', r'''
-    (function(){
-      function NativeClass() {}
-      self.NativeClass = NativeClass;
-      self.makeNativeClass = function(){return new NativeClass()};
-      self.nativeConstructor(NativeClass);
-      function JSClass() {}
-      self.JSClass = JSClass;
-    })()
-  ''');
-  applyTestExtensions(['NativeClass']);
-
-  var nativeClass = NativeClass();
-  var staticNativeClass = StaticNativeClass();
-  var jsClass = JSClass();
-  var staticJsClass = StaticJSClass();
-  var anonymousClass = AnonymousClass();
-
-  // Native objects can be interop'd with static interop classes.
-  expect(nativeClass is StaticNativeClass, true);
-  expect(confuse(nativeClass) is StaticNativeClass, true);
-  expect(() => nativeClass as StaticNativeClass, returnsNormally);
-
-  expect(staticNativeClass is NativeClass, true);
-  expect(confuse(staticNativeClass) is NativeClass, true);
-  expect(() => staticNativeClass as NativeClass, returnsNormally);
-
-  // Likewise, non-native JS objects can be interop'd with static interop
-  // classes as well.
-  expect(jsClass is StaticJSClass, true);
-  expect(confuse(jsClass) is StaticJSClass, true);
-  expect(() => jsClass as StaticJSClass, returnsNormally);
-
-  expect(staticJsClass is JSClass, true);
-  expect(confuse(staticJsClass) is JSClass, true);
-  expect(() => staticJsClass as JSClass, returnsNormally);
-
-  expect(anonymousClass is StaticJSClass, true);
-  expect(confuse(anonymousClass) is StaticJSClass, true);
-  expect(() => anonymousClass as StaticJSClass, returnsNormally);
-
-  expect(staticJsClass is AnonymousClass, true);
-  expect(confuse(staticJsClass) is AnonymousClass, true);
-  expect(() => staticJsClass as AnonymousClass, returnsNormally);
-
-  // With erasure, all static interop classes become the same type, so you can
-  // cast either interop or native objects to them regardless of the underlying
-  // class.
-  expect(staticNativeClass is StaticJSClass, true);
-  expect(confuse(staticNativeClass) is StaticJSClass, true);
-  expect(() => staticNativeClass as StaticJSClass, returnsNormally);
-
-  expect(staticJsClass is StaticNativeClass, true);
-  expect(confuse(staticJsClass) is StaticNativeClass, true);
-  expect(() => staticJsClass as StaticNativeClass, returnsNormally);
-
-  expect(nativeClass is StaticJSClass, true);
-  expect(confuse(nativeClass) is StaticJSClass, true);
-  expect(() => nativeClass as StaticJSClass, returnsNormally);
-
-  expect(jsClass is StaticNativeClass, true);
-  expect(confuse(jsClass) is StaticNativeClass, true);
-  expect(() => jsClass as StaticNativeClass, returnsNormally);
-
-  expect(anonymousClass is StaticNativeClass, true);
-  expect(confuse(anonymousClass) is StaticNativeClass, true);
-  expect(() => anonymousClass as StaticNativeClass, returnsNormally);
-
-  // You cannot, however, always cast from a static interop type to an interop
-  // type or a native type. That will depend on whether the object is an interop
-  // object or a native object.
-  expect(staticNativeClass is JSClass, false);
-  expect(confuse(staticNativeClass) is JSClass, false);
-  // TODO(srujzs): This should throw in dart2js without the `confuse`, but it
-  // does not. This does throw without `confuse` when we use an external
-  // generative constructor for `StaticNativeClass`, but not when we use an
-  // external factory constructor. Investigate why dart2js' type check
-  // optimizations have this discrepancy.
-  expect(() => confuse(staticNativeClass) as JSClass, throws);
-
-  expect(staticNativeClass is AnonymousClass, false);
-  expect(confuse(staticNativeClass) is AnonymousClass, false);
-  // TODO(srujzs): Same comment as above.
-  expect(() => confuse(staticNativeClass) as AnonymousClass, throws);
-
-  expect(staticJsClass is NativeClass, false);
-  expect(confuse(staticJsClass) is NativeClass, false);
-  expect(() => staticJsClass as NativeClass, throws);
-
-  // Subtyping rules.
-
-  // Note that erasure ignores all static class type parameters so this
-  // comparison becomes
-  // `JavaScriptObject Function() is JavaScriptObject Function()`. This behavior
-  // is similar to non-static interop classes.
-  expect(
-      returnGenericStaticJSClassInt is GenericStaticJSClass<String> Function(),
-      true);
-  expect(
-      confuse(returnGenericStaticJSClassInt) is GenericStaticJSClass<String>
-          Function(),
-      true);
-  expect(
-      () => returnGenericStaticJSClassInt as GenericStaticJSClass<String>
-          Function(),
-      returnsNormally);
-
-  // static interop class A <: static interop class A
-  expect(returnStaticNativeClass is StaticNativeClass Function(), true);
-  expect(
-      confuse(returnStaticNativeClass) is StaticNativeClass Function(), true);
-  expect(returnStaticJSClass is StaticJSClass Function(), true);
-  expect(confuse(returnStaticJSClass) is StaticJSClass Function(), true);
-
-  // static interop class A <: static interop class B
-  expect(returnStaticNativeClass is StaticJSClass Function(), true);
-  expect(confuse(returnStaticNativeClass) is StaticJSClass Function(), true);
-  expect(returnStaticJSClass is StaticNativeClass Function(), true);
-  expect(confuse(returnStaticJSClass) is StaticNativeClass Function(), true);
-
-  // static interop class !<: native class
-  expect(returnStaticNativeClass is NativeClass Function(), false);
-  expect(confuse(returnStaticNativeClass) is NativeClass Function(), false);
-  expect(returnStaticJSClass is NativeClass Function(), false);
-  expect(confuse(returnStaticJSClass) is NativeClass Function(), false);
-
-  // static interop class !<: package:js class
-  expect(returnStaticNativeClass is JSClass Function(), false);
-  expect(confuse(returnStaticNativeClass) is JSClass Function(), false);
-  expect(returnStaticJSClass is JSClass Function(), false);
-  expect(confuse(returnStaticJSClass) is JSClass Function(), false);
-
-  // static interop class !<: anonymous class
-  expect(returnStaticNativeClass is AnonymousClass Function(), false);
-  expect(confuse(returnStaticNativeClass) is AnonymousClass Function(), false);
-  expect(returnStaticJSClass is AnonymousClass Function(), false);
-  expect(confuse(returnStaticJSClass) is AnonymousClass Function(), false);
-
-  // native class <: static interop class
-  expect(returnNativeClass is StaticJSClass Function(), true);
-  expect(confuse(returnNativeClass) is StaticJSClass Function(), true);
-  expect(returnNativeClass is StaticNativeClass Function(), true);
-  expect(confuse(returnNativeClass) is StaticNativeClass Function(), true);
-
-  // package:js class <: static interop class
-  // TODO(46456): The runtime check using `confuse` does not fail, whereas the
-  // compile-time check does on dart2js.
-  // expect(returnJSClass is StaticJSClass Function(), true);
-  expect(confuse(returnJSClass) is StaticJSClass Function(), true);
-  // TODO(46456): The runtime check using `confuse` does not fail, whereas the
-  // compile-time check does on dart2js.
-  // expect(returnJSClass is StaticNativeClass Function(), true);
-  expect(confuse(returnJSClass) is StaticNativeClass Function(), true);
-
-  // anonymous class <: static interop class
-  // TODO(46456): The runtime check using `confuse` does not fail, whereas the
-  // compile-time check does on dart2js.
-  // expect(returnAnonymousClass is StaticJSClass Function(), true);
-  expect(confuse(returnAnonymousClass) is StaticJSClass Function(), true);
-  // TODO(46456): The runtime check using `confuse` does not fail, whereas the
-  // compile-time check does on dart2js.
-  // expect(returnAnonymousClass is StaticNativeClass Function(), true);
-  expect(confuse(returnAnonymousClass) is StaticNativeClass Function(), true);
-}
diff --git a/tests/web_2/native/static_interop_erasure/use_erased_type_members_test.dart b/tests/web_2/native/static_interop_erasure/use_erased_type_members_test.dart
deleted file mode 100644
index 7675ad35726..00000000000
--- a/tests/web_2/native/static_interop_erasure/use_erased_type_members_test.dart
+++ /dev/null
@@ -1,146 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that a static interop class can be used in place of a Native class and
-// its static members work as expected post-erasure.
-
-@JS()
-library use_erased_type_members_test;
-
-import 'dart:_interceptors' show JavaScriptObject;
-
-import 'package:expect/minitest.dart';
-import 'package:js/js.dart';
-
-import '../native_testing.dart' hide JS;
-import '../native_testing.dart' as native_testing;
-
-NativeClass makeNativeClass() native;
-
-@Native('NativeClass')
-class NativeClass extends JavaScriptObject {
-  factory NativeClass() => makeNativeClass();
-}
-
-@JS()
-@staticInterop
-class Parent {}
-
-extension ParentExtension on Parent {
-  external String get parentExternalGetSet;
-  external set parentExternalGetSet(String val);
-  external String parentExternalMethod();
-
-  String get parentGetSet => this.parentExternalGetSet;
-  set parentGetSet(String val) => this.parentExternalGetSet = val;
-  String parentMethod() => 'parentMethod';
-}
-
-@JS()
-@staticInterop
-class Interface {}
-
-extension InterfaceExtension on Interface {
-  external String get interfaceExternalGetSet;
-  external set interfaceExternalGetSet(String val);
-  external String interfaceExternalMethod();
-
-  String get interfaceGetSet => this.interfaceExternalGetSet;
-  set interfaceGetSet(String val) => this.interfaceExternalGetSet = val;
-  String interfaceMethod() => 'interfaceMethod';
-}
-
-@JS('NativeClass')
-@staticInterop
-class StaticJSClass extends Parent implements Interface {
-  external factory StaticJSClass();
-  external factory StaticJSClass.externalFactory();
-  factory StaticJSClass.redirectingFactory() = StaticJSClass;
-
-  external static String get externalStaticGetSet;
-  external static set externalStaticGetSet(String val);
-  external static String externalStaticMethod();
-}
-
-extension StaticJSClassExtension on StaticJSClass {
-  external String get externalGetSet;
-  external set externalGetSet(String val);
-  external String externalMethod();
-
-  String get getSet => this.externalGetSet;
-  set getSet(String val) => this.externalGetSet = val;
-  String method() => 'method';
-}
-
-void main() {
-  nativeTesting();
-  native_testing.JS('', r'''
-    (function(){
-      function NativeClass() {
-        this.externalGetSet = '';
-        this.externalMethod = function() { return 'externalMethod'; };
-
-        this.parentExternalGetSet = '';
-        this.parentExternalMethod = function() {
-          return 'parentExternalMethod';
-        };
-
-        this.interfaceExternalGetSet = '';
-        this.interfaceExternalMethod = function() {
-          return 'interfaceExternalMethod';
-        };
-      }
-      NativeClass.externalStaticField = 'externalStaticField';
-      NativeClass.externalStaticGetSet = NativeClass.externalStaticField;
-      NativeClass.externalStaticMethod = function() {
-        return 'externalStaticMethod';
-      };
-      self.NativeClass = NativeClass;
-      self.makeNativeClass = function(){return new NativeClass()};
-      self.nativeConstructor(NativeClass);
-    })()
-  ''');
-  applyTestExtensions(['NativeClass']);
-
-  // NativeClass needs to be live, so it can be correctly intercepted.
-  NativeClass();
-  // Invoke constructors and ensure they're typed correctly.
-  StaticJSClass staticJs = StaticJSClass();
-  staticJs = StaticJSClass.externalFactory();
-  staticJs = StaticJSClass.redirectingFactory();
-
-  // Invoke external static members.
-  StaticJSClass.externalStaticGetSet = 'externalStaticGetSet';
-  expect(StaticJSClass.externalStaticGetSet, 'externalStaticGetSet');
-  expect(StaticJSClass.externalStaticMethod(), 'externalStaticMethod');
-
-  // Use extension members.
-  staticJs.externalGetSet = 'externalGetSet';
-  expect(staticJs.externalGetSet, 'externalGetSet');
-  expect(staticJs.externalMethod(), 'externalMethod');
-
-  staticJs.getSet = 'getSet';
-  expect(staticJs.getSet, 'getSet');
-  expect(staticJs.method(), 'method');
-
-  // Use parent extension members.
-  staticJs.parentExternalGetSet = 'parentExternalGetSet';
-  expect(staticJs.parentExternalGetSet, 'parentExternalGetSet');
-  expect(staticJs.parentExternalMethod(), 'parentExternalMethod');
-
-  staticJs.parentGetSet = 'parentGetSet';
-  expect(staticJs.parentGetSet, 'parentGetSet');
-  expect(staticJs.parentMethod(), 'parentMethod');
-
-  // Use interface extension members.
-  staticJs.interfaceExternalGetSet = 'interfaceExternalGetSet';
-  expect(staticJs.interfaceExternalGetSet, 'interfaceExternalGetSet');
-  expect(staticJs.interfaceExternalMethod(), 'interfaceExternalMethod');
-
-  staticJs.interfaceGetSet = 'interfaceGetSet';
-  expect(staticJs.interfaceGetSet, 'interfaceGetSet');
-  expect(staticJs.interfaceMethod(), 'interfaceMethod');
-}
diff --git a/tests/web_2/native/static_methods_test.dart b/tests/web_2/native/static_methods_test.dart
deleted file mode 100644
index 3b1b31c58ec..00000000000
--- a/tests/web_2/native/static_methods_test.dart
+++ /dev/null
@@ -1,72 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Accessing static native methods names:
-//   plain declaration ->  use @Native tag as 'scope' for declared name.
-//   identifier @JSName -> use @Native tag as 'scope' for @JSName.
-//   other @JSName -> use @JSName as an expression.
-
-import 'native_testing.dart';
-import 'dart:_js_helper' show convertDartClosureToJS;
-
-typedef int Callback(String s);
-
-@Native("CC") // Tag can be different to class name.
-class AA {
-  // This name is not an identifier, so completely defines how to access method.
-  @JSName('CC.foo')
-  static int foo(String s) native;
-
-  // This name is not an identifier, so completely defines how to access method.
-  @JSName('CC.bar')
-  static int bar(Callback c) native;
-  static int baz(Callback c) {
-    return bar(c);
-  }
-
-  // Compiler should automatically use the tag and the declared name, i.e. call
-  // `CC.lepton`.
-  static int lepton(Callback c) native;
-  static int electron(c) => lepton(c);
-
-  // Compiler should automatically use the tag and JSName, i.e. call
-  // `CC.baryon`.
-  @JSName('baryon')
-  static int _baryon(Callback c) native;
-  static int proton(c) => _baryon(c);
-}
-
-void setup() {
-  JS('', r"""
-(function(){
-  // This code is inside 'setup' and so not accessible from the global scope.
-
-  function CC(){}
-
-  CC.foo = function(s) { return s.length; };
-  CC.bar = function(f) { return f("Bye"); };
-  CC.lepton = function(f) { return f("Lepton"); };
-  CC.baryon = function(f) { return f("three quarks"); };
-
-  self.CC = CC;
-})()""");
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  Expect.equals(5, AA.foo("Hello"));
-
-  Expect.equals(3, AA.bar((String s) => s.length));
-  Expect.equals(3, AA.baz((String s) => s.length));
-
-  Expect.equals(6, AA.lepton((String s) => s.length));
-  Expect.equals(6, AA.electron((String s) => s.length));
-
-  Expect.equals(12, AA._baryon((String s) => s.length));
-  Expect.equals(12, AA.proton((String s) => s.length));
-}
diff --git a/tests/web_2/native/subclassing_1_test.dart b/tests/web_2/native/subclassing_1_test.dart
deleted file mode 100644
index c19ce2b115d..00000000000
--- a/tests/web_2/native/subclassing_1_test.dart
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-import 'dart:_js_helper' show setNativeSubclassDispatchRecord;
-import 'dart:_interceptors' show findInterceptorForType;
-
-// Test that subclasses of native classes can be defined by setting the dispatch
-// record.
-
-@Native("A")
-class A {
-  foo(x) => '$x,${this.oof()}';
-  oof() => 'A';
-}
-
-class B extends A {
-  oof() => 'B';
-}
-
-B makeB1() native;
-B makeB2() native;
-B makeC() native;
-
-@Creates('=Object')
-getBPrototype() native;
-
-@Creates('=Object')
-getCPrototype() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {}
-  function B() {}
-  function C() {}
-  self.makeA = function(){return new A()};
-  self.makeB1 = function(){return new B()};
-  self.makeB2 = function(){return new B()};
-  self.makeC = function(){return new C()};
-
-  self.getBPrototype = function(){return B.prototype;};
-  self.getCPrototype = function(){return C.prototype;};
-})()""");
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  setNativeSubclassDispatchRecord(getBPrototype(), findInterceptorForType(B));
-  setNativeSubclassDispatchRecord(getCPrototype(), findInterceptorForType(B));
-
-  B b1 = makeB1();
-  Expect.equals('1,B', b1.foo(1));
-
-  B b2 = makeB2();
-  Expect.equals('2,B', b2.foo(2));
-
-  B b3 = makeC();
-  Expect.equals('3,B', b3.foo(3));
-}
diff --git a/tests/web_2/native/subclassing_2_test.dart b/tests/web_2/native/subclassing_2_test.dart
deleted file mode 100644
index d5ee89d4666..00000000000
--- a/tests/web_2/native/subclassing_2_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-import 'dart:_js_helper' show setNativeSubclassDispatchRecord;
-import 'dart:_interceptors' show findInterceptorForType;
-
-// Test calling convention of methods introduced on subclasses of native
-// classes.
-
-doFoo(r, x) => '$x,${r.oof()}';
-
-@Native("A")
-class A {
-  foo(x) => (doFoo)(this, x);
-}
-
-class B extends A {
-  // [oof] is introduced only on this subclass of a native class.  It should
-  // have interceptor calling convention.
-  oof() => 'B';
-}
-
-B makeB() native;
-
-@Creates('=Object')
-getBPrototype() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function A() {}
-  function B() {}
-  self.makeA = function(){return new A()};
-  self.makeB = function(){return new B()};
-
-  self.getBPrototype = function(){return B.prototype;};
-})()""");
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  setNativeSubclassDispatchRecord(getBPrototype(), findInterceptorForType(B));
-
-  B b = makeB();
-  Expect.equals('1,B', b.foo(1));
-}
diff --git a/tests/web_2/native/subclassing_3_test.dart b/tests/web_2/native/subclassing_3_test.dart
deleted file mode 100644
index d033b08b132..00000000000
--- a/tests/web_2/native/subclassing_3_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-import 'dart:_js_helper' show setNativeSubclassDispatchRecord;
-import 'dart:_interceptors' show Interceptor, findInterceptorForType;
-
-// Test calling convention of methods introduced on subclasses of native
-// class of mixin.
-
-doFoo(r, x) => '$x,${r.oof()},${r.miz()}';
-
-class M {
-  miz() => 'M';
-}
-
-@Native("N")
-class N {
-  foo(x) => (doFoo)(this, x);
-}
-
-class A extends N {}
-
-class B extends A with M {
-  // [oof] is introduced only on this subclass of a native class.  It should
-  // have interceptor calling convention.
-  oof() => 'B';
-  // [miz] is introduced only on the mixin-application A+M.
-}
-
-B makeB() native;
-
-@Creates('=Object')
-getBPrototype() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function B() {}
-  self.makeB = function(){return new B();};
-
-  self.getBPrototype = function(){return B.prototype;};
-})()""");
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  setNativeSubclassDispatchRecord(getBPrototype(), findInterceptorForType(B));
-
-  B b = makeB();
-  Expect.equals('1,B,M', b.foo(1));
-}
diff --git a/tests/web_2/native/subclassing_4_test.dart b/tests/web_2/native/subclassing_4_test.dart
deleted file mode 100644
index c80a1616e8d..00000000000
--- a/tests/web_2/native/subclassing_4_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-import 'dart:_js_helper' show setNativeSubclassDispatchRecord;
-import 'dart:_interceptors' show Interceptor, findInterceptorForType;
-
-// Test calling convention on subclasses of native classes.
-
-class M {
-  miz() => 'M';
-}
-
-@Native("N")
-class N {}
-
-class A extends N {}
-
-class B extends A with M {
-  // The call to [miz] has a know type [B].  The call is in an intercepted
-  // method and to an intercepted method, so the ambient interceptor can be
-  // used.  For correct optimization of the interceptor, the compiler needs to
-  // (1) correctly determine that B is an intercepted type (because it extends a
-  // native class) and (2) realize that the intersection of [B] and subclasses
-  // of mixin applications of [M] is non-empty.
-  callMiz() => this.miz();
-}
-
-B makeB() native;
-
-@Creates('=Object')
-getBPrototype() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function B() {}
-  self.makeB = function(){return new B()};
-  self.getBPrototype = function(){return B.prototype;};
-})()""");
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  setNativeSubclassDispatchRecord(getBPrototype(), findInterceptorForType(B));
-
-  B b = makeB();
-  Expect.equals('M', b.callMiz());
-}
diff --git a/tests/web_2/native/subclassing_5_test.dart b/tests/web_2/native/subclassing_5_test.dart
deleted file mode 100644
index 55993998538..00000000000
--- a/tests/web_2/native/subclassing_5_test.dart
+++ /dev/null
@@ -1,174 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-import 'dart:_js_helper' show setNativeSubclassDispatchRecord;
-import 'dart:_interceptors' show Interceptor, findInterceptorForType;
-
-// Test type checks.
-
-class I {}
-
-class M implements I {
-  miz() => 'M';
-}
-
-@Native("N")
-class N {}
-
-class A extends N {}
-
-class B extends A with M {}
-
-class Checks<T> {
-  bool isCheck(x) => x is T;
-  void assignCheck(x) {
-    T z = x;
-    Expect.identical(x, z);
-  }
-
-  void castCheck(x) {
-    var z = x as T;
-    Expect.identical(x, z);
-  }
-}
-
-makeB() native;
-
-@Creates('=Object')
-getBPrototype() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function B() {}
-  self.makeB = function(){return new B()};
-  self.getBPrototype = function(){return B.prototype;};
-})()""");
-}
-
-bool isCheckedMode() {
-  var isChecked = false;
-  assert(isChecked = true);
-  return isChecked;
-}
-
-testIsI(x) {
-  Expect.isTrue(x is I);
-}
-
-testIsM(x) {
-  Expect.isTrue(x is M);
-}
-
-testIsN(x) {
-  Expect.isTrue(x is N);
-}
-
-testIsA(x) {
-  Expect.isTrue(x is A);
-}
-
-testIsB(x) {
-  Expect.isTrue(x is B);
-}
-
-testAssignI(x) {
-  I z = x;
-  Expect.identical(x, z);
-}
-
-testAssignM(x) {
-  M z = x;
-  Expect.identical(x, z);
-}
-
-testAssignN(x) {
-  N z = x;
-  Expect.identical(x, z);
-}
-
-testAssignA(x) {
-  A z = x;
-  Expect.identical(x, z);
-}
-
-testAssignB(x) {
-  B z = x;
-  Expect.identical(x, z);
-}
-
-testCastI(x) {
-  var z = x as I;
-  Expect.identical(x, z);
-}
-
-testCastM(x) {
-  var z = x as M;
-  Expect.identical(x, z);
-}
-
-testCastN(x) {
-  var z = x as N;
-  Expect.identical(x, z);
-}
-
-testCastA(x) {
-  var z = x as A;
-  Expect.identical(x, z);
-}
-
-testCastB(x) {
-  var z = x as B;
-  Expect.identical(x, z);
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  setNativeSubclassDispatchRecord(getBPrototype(), findInterceptorForType(B));
-
-  var b = confuse(makeB());
-
-  confuse(testIsB)(b);
-  confuse(testIsA)(b);
-  confuse(testIsN)(b);
-  confuse(testIsM)(b);
-  confuse(testIsI)(b);
-
-  confuse(new Checks<B>().isCheck)(b);
-  confuse(new Checks<A>().isCheck)(b);
-  confuse(new Checks<N>().isCheck)(b);
-  confuse(new Checks<M>().isCheck)(b);
-  confuse(new Checks<I>().isCheck)(b);
-
-  if (isCheckedMode()) {
-    confuse(testAssignB)(b);
-    confuse(testAssignA)(b);
-    confuse(testAssignN)(b);
-    confuse(testAssignM)(b);
-    confuse(testAssignI)(b);
-
-    confuse(testCastB)(b);
-    confuse(testCastA)(b);
-    confuse(testCastN)(b);
-    confuse(testCastM)(b);
-    confuse(testCastI)(b);
-
-    confuse(new Checks<B>().assignCheck)(b);
-    confuse(new Checks<A>().assignCheck)(b);
-    confuse(new Checks<N>().assignCheck)(b);
-    confuse(new Checks<M>().assignCheck)(b);
-    confuse(new Checks<I>().assignCheck)(b);
-
-    confuse(new Checks<B>().castCheck)(b);
-    confuse(new Checks<A>().castCheck)(b);
-    confuse(new Checks<N>().castCheck)(b);
-    confuse(new Checks<M>().castCheck)(b);
-    confuse(new Checks<I>().castCheck)(b);
-  }
-}
diff --git a/tests/web_2/native/subclassing_constructor_1_test.dart b/tests/web_2/native/subclassing_constructor_1_test.dart
deleted file mode 100644
index 9ee71bb6aa3..00000000000
--- a/tests/web_2/native/subclassing_constructor_1_test.dart
+++ /dev/null
@@ -1,179 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-import 'dart:_js_helper' show setNativeSubclassDispatchRecord;
-import 'dart:_interceptors'
-    show findInterceptorForType, findConstructorForNativeSubclassType;
-
-// Test that subclasses of native classes can be initialized by calling the
-// 'upgrade' constructor.
-
-var trace = [];
-
-var log;
-
-@Native("A")
-class A {
-  final a1 = log(101); // Only initialized IF named constructor called.
-  get a2 native; // Initialized by native constructor.
-  var a3; // Initialized only by A.two.
-  var a4 = log(104);
-
-  A.one();
-
-  A.two() : a3 = log(103) {
-    log('body(A.two)');
-    log(a4 += increment);
-  }
-
-  A.three(x, this.a4) {
-    log('body(A.three)');
-    log(a4 = '($a4, $x)');
-  }
-
-  get increment => 10;
-}
-
-class B extends A {
-  var b1;
-  final b2 = log(202);
-  var b3;
-
-  B.one() : super.one();
-
-  B.two()
-      : b1 = log(201),
-        b3 = log(203),
-        super.two() {
-    log('body(B.two)');
-  }
-
-  B.three([x]) : super.three(205, x);
-
-  get increment => 20;
-}
-
-makeB() native;
-
-@Creates('=Object')
-getBPrototype() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function B() { this.a2 = 102; }
-
-  self.makeB = function(){return new B()};
-
-  self.getBPrototype = function(){return B.prototype;};
-})()""");
-}
-
-test_one() {
-  trace = [];
-  var constructor = findConstructorForNativeSubclassType(B, 'one');
-  Expect.isNotNull(constructor);
-  Expect.isNull(findConstructorForNativeSubclassType(B, 'Missing'));
-
-  var b = makeB();
-  Expect.isTrue(b is B);
-  // Call constructor to initialize native object.
-  var b2 = JS('', '#(#)', constructor, b);
-  Expect.identical(b, b2);
-  Expect.isTrue(b is B);
-
-  Expect.equals(101, b.a1);
-  Expect.equals(102, b.a2);
-  Expect.equals(null, b.a3);
-  Expect.equals(104, b.a4);
-  Expect.equals(null, b.b1);
-  Expect.equals(202, b.b2);
-  Expect.equals(null, b.b3);
-
-  Expect.equals('[202, 101, 104]', '$trace');
-}
-
-test_two() {
-  trace = [];
-  var constructor = findConstructorForNativeSubclassType(B, 'two');
-  Expect.isNotNull(constructor);
-
-  var b = makeB();
-  Expect.isTrue(b is B);
-  // Call constructor to initialize native object.
-  JS('', '#(#)', constructor, b);
-  Expect.isTrue(b is B);
-
-  Expect.equals(101, b.a1);
-  Expect.equals(102, b.a2);
-  Expect.equals(103, b.a3);
-  Expect.equals(124, b.a4);
-  Expect.equals(201, b.b1);
-  Expect.equals(202, b.b2);
-  Expect.equals(203, b.b3);
-
-  Expect.equals('[202, 201, 101, 104, 103, 203, body(A.two), 124, body(B.two)]',
-      '$trace');
-}
-
-test_three() {
-  trace = [];
-  var constructor = findConstructorForNativeSubclassType(B, 'three');
-  Expect.isNotNull(constructor);
-
-  var b = makeB();
-  Expect.isTrue(b is B);
-  // Call constructor to initialize native object.
-  //
-  // Since the constructor takes some optional arguments that are not passed, it
-  // is as though the web components runtime explicitly passed `null` for all
-  // parameters.
-  //
-  // TODO(sra): The constructor returned by findConstructorForNativeSubclassType
-  // should be a function that fills in the default values.
-  JS('', '#(#)', constructor, b);
-  Expect.isTrue(b is B);
-
-  Expect.equals(101, b.a1);
-  Expect.equals(102, b.a2);
-  Expect.equals(null, b.a3);
-  Expect.equals('(null, 205)', b.a4);
-  Expect.equals(null, b.b1);
-  Expect.equals(202, b.b2);
-  Expect.equals(null, b.b3);
-  print(trace);
-  Expect.equals('[202, 101, 104, body(A.three), (null, 205)]', '$trace');
-}
-
-test_new() {
-  trace = [];
-  checkThrows(action, description) {
-    Expect.throws(action, (e) => true, "'$description must fail'");
-  }
-
-  checkThrows(() => new B.one(), 'new B.one()');
-  checkThrows(() => new B.two(), 'new B.two()');
-  checkThrows(() => new B.three(), 'new B.three()');
-  checkThrows(() => new B.three(1), 'new B.three(1)');
-  checkThrows(() => new B.three([]), 'new B.three([])');
-}
-
-main() {
-  nativeTesting();
-  setup();
-  log = (message) {
-    trace.add('$message');
-    return message;
-  };
-
-  setNativeSubclassDispatchRecord(getBPrototype(), findInterceptorForType(B));
-
-  test_one();
-  test_two();
-  test_three();
-  test_new();
-}
diff --git a/tests/web_2/native/subclassing_constructor_2_test.dart b/tests/web_2/native/subclassing_constructor_2_test.dart
deleted file mode 100644
index 9228a85447f..00000000000
--- a/tests/web_2/native/subclassing_constructor_2_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Test that native classes and subclasses of native classes cannot be directly
-// created via a generative constructor.
-
-@Native("A")
-class A {
-  A.one();
-}
-
-class B extends A {
-  B.one() : super.one();
-}
-
-main() {
-  Expect.throws(() => new A.one());
-  Expect.throws(() => new B.one());
-}
diff --git a/tests/web_2/native/subclassing_super_call_test.dart b/tests/web_2/native/subclassing_super_call_test.dart
deleted file mode 100644
index b94cfd6c652..00000000000
--- a/tests/web_2/native/subclassing_super_call_test.dart
+++ /dev/null
@@ -1,136 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-import 'dart:_js_helper' show setNativeSubclassDispatchRecord;
-import 'dart:_interceptors'
-    show findInterceptorForType, findConstructorForNativeSubclassType;
-
-// Test for super access from classes that extend native classes.
-
-@Native("N1")
-class N1 {}
-
-@Native("N2")
-class N2 extends N1 {
-  N2.init();
-  String text;
-  foo() native;
-}
-
-class AA extends N2 {
-  AA.init() : super.init();
-  String afield;
-  afun() => 'afun:$afield';
-}
-
-class BB extends AA {
-  BB.init() : super.init();
-
-  get text => super.text;
-  set text(value) => super.text = value;
-  foo() => super.foo();
-
-  get afield => super.afield;
-  set afield(value) => super.afield = value;
-  afun() => super.afun();
-}
-
-BB makeBB() native;
-
-@Creates('=Object')
-getBBPrototype() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function N2() {}
-  N2.prototype.foo = function() { return "foo:" + this.text; };
-  function BB() {}
-  BB.prototype.__proto__ = N2.prototype;
-  self.makeBB = function(){return new BB()};
-
-  self.getBBPrototype = function(){return BB.prototype;};
-})()""");
-}
-
-testSuperOnNative() {
-  BB b1 = makeBB();
-  BB b2 = makeBB();
-
-  var constructor = findConstructorForNativeSubclassType(BB, 'init');
-  Expect.isNotNull(constructor);
-  JS('', '#(#)', constructor, b1);
-  JS('', '#(#)', constructor, b2);
-
-  b1.text = confuse('one');
-  b2.text = confuse('two');
-
-  print('b1.text ${confuse(b1).text}');
-  print('b2.text ${confuse(b2).text}');
-
-  print('b1.foo() ${confuse(b1).foo()}');
-  print('b2.foo() ${confuse(b2).foo()}');
-
-  Expect.equals('one', b1.text);
-  Expect.equals('two', b2.text);
-
-  Expect.equals('foo:one', b1.foo());
-  Expect.equals('foo:two', b2.foo());
-
-  confuse(b1).text = confuse('three');
-  confuse(b2).text = confuse('four');
-
-  Expect.equals('three', confuse(b1).text);
-  Expect.equals('four', confuse(b2).text);
-
-  Expect.equals('foo:three', confuse(b1).foo());
-  Expect.equals('foo:four', confuse(b2).foo());
-}
-
-testSuperOnSubclassOfNative() {
-  BB b1 = makeBB();
-  BB b2 = makeBB();
-
-  var constructor = findConstructorForNativeSubclassType(BB, 'init');
-  Expect.isNotNull(constructor);
-  JS('', '#(#)', constructor, b1);
-  JS('', '#(#)', constructor, b2);
-
-  b1.afield = confuse('one');
-  b2.afield = confuse('two');
-
-  print('b1.afield ${confuse(b1).afield}');
-  print('b2.afield ${confuse(b2).afield}');
-
-  print('b1.afun() ${confuse(b1).afun()}');
-  print('b2.afun() ${confuse(b2).afun()}');
-
-  Expect.equals('one', b1.afield);
-  Expect.equals('two', b2.afield);
-
-  Expect.equals('afun:one', b1.afun());
-  Expect.equals('afun:two', b2.afun());
-
-  confuse(b1).afield = confuse('three');
-  confuse(b2).afield = confuse('four');
-
-  Expect.equals('three', confuse(b1).afield);
-  Expect.equals('four', confuse(b2).afield);
-
-  Expect.equals('afun:three', confuse(b1).afun());
-  Expect.equals('afun:four', confuse(b2).afun());
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  setNativeSubclassDispatchRecord(getBBPrototype(), findInterceptorForType(BB));
-
-  testSuperOnNative();
-  testSuperOnSubclassOfNative();
-}
diff --git a/tests/web_2/native/subclassing_super_field_1_test.dart b/tests/web_2/native/subclassing_super_field_1_test.dart
deleted file mode 100644
index f14bb3d8a73..00000000000
--- a/tests/web_2/native/subclassing_super_field_1_test.dart
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-import 'dart:_js_helper' show setNativeSubclassDispatchRecord;
-import 'dart:_interceptors'
-    show findInterceptorForType, findConstructorForNativeSubclassType;
-
-// Test for shadowed fields in classes that extend native classes.
-
-@Native("N")
-class N {
-  N.init();
-}
-
-class A extends N {
-  var foo = 111;
-  A.init() : super.init();
-}
-
-class B extends A {
-  var foo = 222;
-  B.init() : super.init();
-
-  Afoo() => super.foo;
-  Bfoo() => foo;
-}
-
-B makeB() native;
-
-@Creates('=Object')
-getBPrototype() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-function B() { }
-self.makeB = function(){return new B()};
-
-self.getBPrototype = function(){return B.prototype;};
-})()""");
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  setNativeSubclassDispatchRecord(getBPrototype(), findInterceptorForType(B));
-
-  B b = makeB();
-
-  var constructor = findConstructorForNativeSubclassType(B, 'init');
-  Expect.isNotNull(constructor);
-  JS('', '#(#)', constructor, b);
-
-  print(b);
-
-  Expect.equals(222, confuse(b).Bfoo());
-  Expect.equals(111, confuse(b).Afoo());
-
-  Expect.equals(222, b.Bfoo());
-  Expect.equals(111, b.Afoo());
-}
diff --git a/tests/web_2/native/subclassing_super_field_2_test.dart b/tests/web_2/native/subclassing_super_field_2_test.dart
deleted file mode 100644
index 334e83af5df..00000000000
--- a/tests/web_2/native/subclassing_super_field_2_test.dart
+++ /dev/null
@@ -1,72 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-import 'dart:_js_helper' show setNativeSubclassDispatchRecord;
-import 'dart:_interceptors'
-    show findInterceptorForType, findConstructorForNativeSubclassType;
-
-// Test for fields with same name as native fields.  We expect N.foo to have the
-// property name 'foo' and A.foo and B.foo to have non-conflicting names.
-
-@Native("N")
-class N {
-  var foo;
-  N.init();
-}
-
-class A extends N {
-  var foo = 222;
-  A.init() : super.init();
-  Nfoo() => super.foo; // TODO(sra): Fix compiler assert.
-}
-
-class B extends A {
-  var foo = 333;
-  B.init() : super.init();
-  Afoo() => super.foo;
-  Bfoo() => foo;
-
-  toString() => '[N.foo = ${Nfoo()}, A.foo = ${Afoo()}, B.foo = ${Bfoo()}]';
-}
-
-B makeB() native;
-
-@Creates('=Object')
-getBPrototype() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function B() { this.foo = 111; }  // N.foo
-  self.makeB = function(){return new B()};
-
-  self.getBPrototype = function(){return B.prototype;};
-})()""");
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  setNativeSubclassDispatchRecord(getBPrototype(), findInterceptorForType(B));
-
-  B b = makeB();
-
-  var constructor = findConstructorForNativeSubclassType(B, 'init');
-  Expect.isNotNull(constructor);
-  JS('', '#(#)', constructor, b);
-
-  print(b);
-
-  Expect.equals(333, confuse(b).Bfoo());
-  Expect.equals(222, confuse(b).Afoo());
-  Expect.equals(111, confuse(b).Nfoo());
-
-  Expect.equals(333, b.Bfoo());
-  Expect.equals(222, b.Afoo());
-  Expect.equals(111, b.Nfoo());
-}
diff --git a/tests/web_2/native/subclassing_type_test.dart b/tests/web_2/native/subclassing_type_test.dart
deleted file mode 100644
index 39f97455a3b..00000000000
--- a/tests/web_2/native/subclassing_type_test.dart
+++ /dev/null
@@ -1,158 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'native_testing.dart';
-import 'dart:_js_helper' show setNativeSubclassDispatchRecord;
-import 'dart:_interceptors' show Interceptor, findInterceptorForType;
-
-// Test that type checks and casts work for subclasses of native classes and
-// mixins on native classes.
-
-class M {}
-
-@Native("N")
-class N {}
-
-class A extends N {}
-
-class B extends A with M {
-  // native mixin application.
-}
-
-class C extends Object with M {
-  // non-native mixin application.
-}
-
-B makeB() native;
-
-@Creates('=Object')
-getBPrototype() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  function B() {}
-  self.makeB = function(){return new B()};
-
-  self.getBPrototype = function(){return B.prototype;};
-})()""");
-}
-
-A gA;
-B gB;
-C gC;
-M gM;
-
-isA(x) => x is A;
-asA(x) => x as A;
-setA(x) => gA = x;
-
-isB(x) => x is B;
-asB(x) => x as B;
-setB(x) => gB = x;
-
-isC(x) => x is C;
-asC(x) => x as C;
-setC(x) => gC = x;
-
-isM(x) => x is M;
-asM(x) => x as M;
-setM(x) => gM = x;
-
-checkTrue(f) => (x) {
-      Expect.isTrue(f(x));
-    };
-checkFalse(f) => (x) {
-      Expect.isFalse(f(x));
-    };
-checkId(f) => (x) {
-      Expect.identical(x, f(x));
-    };
-checkThrows(f) => (x) {
-      Expect.throws(() => f(x));
-    };
-
-bool get checkedMode {
-  try {
-    setA(1);
-    gA = null;
-    return false;
-  } catch (e) {
-    return true;
-  }
-}
-
-main() {
-  setup();
-
-  setNativeSubclassDispatchRecord(getBPrototype(), findInterceptorForType(B));
-
-  B b = makeB();
-  C c = new C();
-
-  checkFalse(isA)(1);
-  checkFalse(isB)(1);
-  checkFalse(isC)(1);
-  checkFalse(isM)(1);
-
-  checkTrue(isA)(b);
-  checkTrue(isB)(b);
-  checkTrue(isM)(b);
-  checkFalse(isC)(b);
-
-  checkTrue(isC)(c);
-  checkTrue(isM)(c);
-  checkFalse(isA)(c);
-  checkFalse(isB)(c);
-
-  checkThrows(asA)(1);
-  checkThrows(asB)(1);
-  checkThrows(asC)(1);
-  checkThrows(asM)(1);
-
-  checkId(asA)(b);
-  checkId(asB)(b);
-  checkId(asM)(b);
-  checkThrows(asC)(b);
-
-  checkId(asC)(c);
-  checkId(asM)(c);
-  checkThrows(asA)(c);
-  checkThrows(asB)(c);
-
-  if (checkedMode) {
-    checkThrows(setA)(1);
-    checkThrows(setB)(1);
-    checkThrows(setC)(1);
-    checkThrows(setM)(1);
-
-    checkId(setA)(b);
-    checkId(setB)(b);
-    checkId(setM)(b);
-    checkThrows(setC)(b);
-
-    checkId(setC)(c);
-    checkId(setM)(c);
-    checkThrows(setA)(c);
-    checkThrows(setB)(c);
-
-    // One of the above assignments had a value of the correct type.
-    Expect.isNotNull(gA);
-    Expect.isNotNull(gB);
-    Expect.isNotNull(gC);
-    Expect.isNotNull(gM);
-
-    checkId(setA)(null);
-    checkId(setB)(null);
-    checkId(setC)(null);
-    checkId(setM)(null);
-
-    Expect.isNull(gA);
-    Expect.isNull(gB);
-    Expect.isNull(gC);
-    Expect.isNull(gM);
-  }
-}
diff --git a/tests/web_2/native/super_call_test.dart b/tests/web_2/native/super_call_test.dart
deleted file mode 100644
index 1e91195fd7a..00000000000
--- a/tests/web_2/native/super_call_test.dart
+++ /dev/null
@@ -1,90 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Test to see if resolving a hidden native class's method interferes with
-// subsequent resolving the subclass's method.  This might happen if the
-// superclass caches the method in the prototype, so shadowing the dispatcher
-// stored on Object.prototype.
-
-@Native("A")
-class A {
-  foo() => 'A.foo ${bar()}';
-  bar() => 'A.bar';
-}
-
-@Native("B")
-class B extends A {
-  bar() => 'B.bar';
-}
-
-@Native("C")
-class C extends B {
-  foo() => 'C.foo; super.foo = ${super.foo()}';
-  bar() => 'C.bar';
-}
-
-@Native("D")
-class D extends C {
-  bar() => 'D.bar';
-}
-
-makeA() native;
-makeB() native;
-makeC() native;
-makeD() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  // This code is inside 'setup' and so not accessible from the global scope.
-  function inherits(child, parent) {
-    if (child.prototype.__proto__) {
-      child.prototype.__proto__ = parent.prototype;
-    } else {
-      function tmp() {};
-      tmp.prototype = parent.prototype;
-      child.prototype = new tmp();
-      child.prototype.constructor = child;
-    }
-  }
-
-  function A(){}
-  function B(){}
-  inherits(B, A);
-  function C(){}
-  inherits(C, B);
-  function D(){}
-  inherits(D, C);
-
-  self.makeA = function(){return new A()};
-  self.makeB = function(){return new B()};
-  self.makeC = function(){return new C()};
-  self.makeD = function(){return new D()};
-
-  self.nativeConstructor(A);
-  self.nativeConstructor(B);
-  self.nativeConstructor(C);
-  self.nativeConstructor(D);
-})()""");
-  applyTestExtensions(['A', 'B', 'C', 'D']);
-}
-
-main() {
-  nativeTesting();
-  setup();
-
-  var a = makeA();
-  var b = makeB();
-  var c = makeC();
-  var d = makeD();
-
-  Expect.equals('A.foo A.bar', a.foo());
-  Expect.equals('A.foo B.bar', b.foo());
-  Expect.equals('C.foo; super.foo = A.foo C.bar', c.foo());
-  Expect.equals('C.foo; super.foo = A.foo D.bar', d.foo());
-}
diff --git a/tests/web_2/native/super_property_test.dart b/tests/web_2/native/super_property_test.dart
deleted file mode 100644
index ada33dfc174..00000000000
--- a/tests/web_2/native/super_property_test.dart
+++ /dev/null
@@ -1,78 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Tests super setter where the HInvokeSuper is using interceptor aka
-// explicit-receiver calling convention.
-
-@Native("A")
-class A {
-  var foo;
-  get_foo() => foo;
-  set bar(value) => foo = value;
-}
-
-@Native("B")
-class B extends A {
-  set foo(value) {
-    super.foo = value;
-  }
-
-  get foo => super.foo;
-}
-
-class C {
-  var foo;
-  get_foo() => foo;
-  set bar(value) => foo = value;
-}
-
-class D extends C {
-  set foo(value) {
-    super.foo = value;
-  }
-
-  get foo => super.foo;
-}
-
-makeA() native;
-makeB() native;
-
-void setup() {
-  JS('', r"""
-(function(){
-  // This code is inside 'setup' and so not accessible from the global scope.
-  function A(){}
-  function B(){}
-  self.makeA = function(){return new A()};
-  self.makeB = function(){return new B()};
-  self.nativeConstructor(A);
-  self.nativeConstructor(B);
-})()""");
-  applyTestExtensions(['A', 'B']);
-}
-
-testThing(a) {
-  a.foo = 123;
-  Expect.equals(123, a.foo);
-  Expect.equals(123, a.get_foo());
-
-  a.bar = 234;
-  Expect.equals(234, a.foo);
-  Expect.equals(234, a.get_foo());
-}
-
-main() {
-  nativeTesting();
-  setup();
-  var things = [makeA(), makeB(), new C(), new D()];
-  var test = testThing;
-  test(things[0]);
-  test(things[1]);
-  test(things[2]);
-  test(things[3]);
-}
diff --git a/tests/web_2/native/type_error_decode_test.dart b/tests/web_2/native/type_error_decode_test.dart
deleted file mode 100644
index 3ffe586204c..00000000000
--- a/tests/web_2/native/type_error_decode_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-library test.type_error_decode_test;
-
-import 'native_testing.dart';
-import 'dart:_js_helper' show NullError, JsNoSuchMethodError;
-
-class Foo {
-  var field;
-}
-
-isNullError(e, trace) {
-  print('$e\nTrace: $trace');
-  return e is NullError;
-}
-
-isJsNoSuchMethodError(e, trace) {
-  print('$e\nTrace: $trace');
-  return e is JsNoSuchMethodError;
-}
-
-expectThrows(f, check) {
-  try {
-    f();
-  } catch (e, trace) {
-    if (check(e, trace)) {
-      return;
-    }
-    throw 'Unexpected exception: $e\n$trace';
-  }
-  throw 'No exception thrown';
-}
-
-main() {
-  dynamic x = null;
-  dynamic z = new Object();
-  dynamic v = new List.filled(1, null)[0];
-  dynamic s = "Cannot call method 'foo' of null";
-  dynamic nul = null;
-  dynamic f = new Foo();
-
-  expectThrows(() => x.fisk(), isNullError);
-  expectThrows(() => v.fisk(), isNullError);
-  expectThrows(() => z.fisk(), isJsNoSuchMethodError);
-  expectThrows(() => s.fisk(), isJsNoSuchMethodError);
-  expectThrows(() => (null as dynamic)(), isNullError);
-  expectThrows(() => f.field(), isNullError);
-
-  expectThrows(() => confuse(x).fisk(), isNullError);
-  expectThrows(() => confuse(v).fisk(), isNullError);
-  expectThrows(() => confuse(z).fisk(), isJsNoSuchMethodError);
-  expectThrows(() => confuse(s).fisk(), isJsNoSuchMethodError);
-  expectThrows(() => confuse(null)(), isNullError);
-  expectThrows(() => confuse(f).field(), isNullError);
-  expectThrows(() => confuse(f.field)(), isNullError);
-}
diff --git a/tests/web_2/native/undefined_bailout_test.dart b/tests/web_2/native/undefined_bailout_test.dart
deleted file mode 100644
index 1fb021c30a0..00000000000
--- a/tests/web_2/native/undefined_bailout_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2js regression test where the SSA backend would use the wrong
-// type for an instruction: when doing a speculative type propagation,
-// if an instruction gets analyzed multiple times, we used to save the
-// last inferred type, which could be speculative, instead of the
-// first inferred type, which is the actual, non-speculative, type.
-//
-// Because we are doing speculative type propagation at the very end,
-// before emitting the bailout version, the only place where we might
-// do wrong optimizations is during the codegen. It turns out that the
-// codegen optimizes '==' comparisons on null to '===' in case it knows
-// the receiver cannot be null. So in the following example, the
-// [:e == null:] comparison in [foo] got wrongly generated to a
-// JavaScript identity check (that is, using '==='). But this
-// comparison does not work for undefined, which the DOM sometimes
-// returns.
-
-import "native_testing.dart";
-
-var a = 42;
-var b = 0;
-
-foo(e) {
-  // Loop to force a bailout.
-  for (int i = 0; i < b; i++) {
-    a = e[i]; // Will desire a readable primitive.
-  }
-  // Our heuristics for '==' on an indexable primitive is that it's
-  // more common to do it on string, so we'll want e to be a string.
-  return a == e || e == null;
-}
-
-main() {
-  Expect.isTrue(foo(JS('', 'void 0')));
-}
diff --git a/tests/web_2/native/uninstantiated_type_parameter_test.dart b/tests/web_2/native/uninstantiated_type_parameter_test.dart
deleted file mode 100644
index 968ca871f79..00000000000
--- a/tests/web_2/native/uninstantiated_type_parameter_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "native_testing.dart";
-
-// Test for uninstantiated native classes as type parameters.
-
-class UA {}
-
-@Native("B")
-class UB {}
-
-class C<T> {}
-
-main() {
-  var a = new C<UA>();
-  var b = new C<UB>();
-
-  Expect.isTrue(a is! C<int>);
-  Expect.isTrue(a is! C<C>);
-}
diff --git a/tests/web_2/new_from_env_test.dart b/tests/web_2/new_from_env_test.dart
deleted file mode 100644
index 7138c6be16e..00000000000
--- a/tests/web_2/new_from_env_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-/// Dart2js only supports the const constructor for `?.fromEnvironment`. The
-/// current behavior is to throw at runtime if they call this constructor with
-/// `new` instead of `const`.
-main() {
-  Expect.isFalse(const bool.fromEnvironment('X'));
-  Expect.equals('', const String.fromEnvironment('X', defaultValue: ''));
-  Expect.equals(const int.fromEnvironment('X', defaultValue: 0), 0);
-
-  Expect.throws(() => new bool.fromEnvironment('X'));
-  Expect.throws(() => new String.fromEnvironment('X'));
-  Expect.throws(() => new int.fromEnvironment('X', defaultValue: 0));
-}
diff --git a/tests/web_2/no_such_method_strong10_test.dart b/tests/web_2/no_such_method_strong10_test.dart
deleted file mode 100644
index 095d3837e39..00000000000
--- a/tests/web_2/no_such_method_strong10_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-abstract class A {
-  m(x);
-}
-
-class B implements A {
-  noSuchMethod(Invocation i) {
-    print("nsm call: ${i.memberName}");
-    if (i.isGetter) {
-      throw (" - tearoff");
-    }
-    if (i.isMethod) {
-      print(" - method invocation");
-      return 42;
-    }
-    return 123;
-  }
-}
-
-void main() {
-  A x = new B();
-  var tearoff = x.m;
-  Expect.equals(42, tearoff(3));
-}
diff --git a/tests/web_2/no_such_method_strong11_lib.dart b/tests/web_2/no_such_method_strong11_lib.dart
deleted file mode 100644
index 7d8d5d40d68..00000000000
--- a/tests/web_2/no_such_method_strong11_lib.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-abstract class I {
-  // ignore: unused_element
-  int _m1();
-
-  // ignore: unused_element
-  int _m2();
-}
diff --git a/tests/web_2/no_such_method_strong11_test.dart b/tests/web_2/no_such_method_strong11_test.dart
deleted file mode 100644
index 0631e598c60..00000000000
--- a/tests/web_2/no_such_method_strong11_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-// Regression test checking that nsm-forwarders do not get installed for private
-// members of other libraries. See http://dartbug.com/33665
-
-import 'package:expect/expect.dart';
-import 'no_such_method_strong11_lib.dart';
-
-abstract class J {
-  int _m3();
-  int _m4();
-}
-
-class A implements I, J {
-  int _m1() => 1;
-  int _m3() => 3;
-  noSuchMethod(Invocation m) => -1;
-}
-
-main() {
-  dynamic a = confuse(new A());
-  Expect.equals(1, a._m1());
-  Expect.equals(3, a._m3());
-  Expect.equals(1, (a._m1)());
-  Expect.equals(3, (a._m3)());
-
-  Expect.equals(-1, a._m2());
-  Expect.equals(-1, a._m4());
-  Expect.isFalse(a._m2 is Function);
-  Expect.equals(-1, a._m2);
-  Expect.isTrue(a._m4 is Function);
-  Expect.equals(-1, (a._m4)());
-}
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
diff --git a/tests/web_2/no_such_method_strong12_test.dart b/tests/web_2/no_such_method_strong12_test.dart
deleted file mode 100644
index c90e8bb2374..00000000000
--- a/tests/web_2/no_such_method_strong12_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-abstract class A {
-  m({a: 1, c: 3, b: 2});
-}
-
-class B implements A {
-  noSuchMethod(Invocation i) {
-    return '${i.namedArguments[#a]},${i.namedArguments[#b]},${i.namedArguments[#c]}';
-  }
-}
-
-void main() {
-  A x = new B();
-  Expect.equals('1,2,3', x.m());
-  Expect.equals('1,2,3', x.m(a: 1));
-  Expect.equals('1,2,3', x.m(c: 3));
-  Expect.equals('1,2,3', x.m(b: 2));
-  Expect.equals('1,2,3', x.m(a: 1, b: 2));
-  Expect.equals('1,2,3', x.m(a: 1, b: 2, c: 3));
-}
diff --git a/tests/web_2/no_such_method_strong1_test.dart b/tests/web_2/no_such_method_strong1_test.dart
deleted file mode 100644
index 6d6251dcd69..00000000000
--- a/tests/web_2/no_such_method_strong1_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-abstract class A {
-  m(x);
-}
-
-class B implements A {
-  noSuchMethod(Invocation i) {
-    print("nsm call: ${i.memberName}");
-    if (i.isGetter) {
-      throw (" - tearoff");
-    }
-    if (i.isMethod) {
-      print(" - method invocation");
-      return 42;
-    }
-    return 123;
-  }
-}
-
-void main() {
-  A x = new B();
-  Expect.equals(42, x.m(3));
-}
diff --git a/tests/web_2/no_such_method_strong2_test.dart b/tests/web_2/no_such_method_strong2_test.dart
deleted file mode 100644
index fdd7adc18f8..00000000000
--- a/tests/web_2/no_such_method_strong2_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-abstract class A {
-  m(x);
-}
-
-class B implements A {
-  noSuchMethod(Invocation i) {
-    return i.memberName;
-  }
-}
-
-void main() {
-  A x = new B();
-  Expect.equals(#m, x.m(3));
-}
diff --git a/tests/web_2/no_such_method_strong3_test.dart b/tests/web_2/no_such_method_strong3_test.dart
deleted file mode 100644
index 53fbcc11c61..00000000000
--- a/tests/web_2/no_such_method_strong3_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-abstract class A {
-  m(x, y);
-}
-
-class B implements A {
-  noSuchMethod(Invocation i) {
-    return '${i.positionalArguments[0]},${i.positionalArguments[1]}';
-  }
-}
-
-void main() {
-  A x = new B();
-  Expect.equals('3,4', x.m(3, 4));
-}
diff --git a/tests/web_2/no_such_method_strong4_test.dart b/tests/web_2/no_such_method_strong4_test.dart
deleted file mode 100644
index e491795856c..00000000000
--- a/tests/web_2/no_such_method_strong4_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-abstract class A {
-  m({a, b});
-}
-
-class B implements A {
-  noSuchMethod(Invocation i) {
-    return '${i.namedArguments[#a]},${i.namedArguments[#b]}';
-  }
-}
-
-void main() {
-  A x = new B();
-  Expect.equals('3,4', x.m(a: 3, b: 4));
-  Expect.equals('3,4', x.m(b: 4, a: 3));
-}
diff --git a/tests/web_2/no_such_method_strong5_test.dart b/tests/web_2/no_such_method_strong5_test.dart
deleted file mode 100644
index 63f04e8ae54..00000000000
--- a/tests/web_2/no_such_method_strong5_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-abstract class A {
-  m<X, Y>();
-}
-
-class B implements A {
-  noSuchMethod(Invocation i) {
-    return [i.typeArguments[0], i.typeArguments[1]];
-  }
-}
-
-void main() {
-  A x = new B();
-  Expect.listEquals([int, String], x.m<int, String>());
-}
diff --git a/tests/web_2/no_such_method_strong6_test.dart b/tests/web_2/no_such_method_strong6_test.dart
deleted file mode 100644
index a9e4741fb1a..00000000000
--- a/tests/web_2/no_such_method_strong6_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-abstract class A {
-  m();
-}
-
-class B implements A {
-  noSuchMethod(Invocation i) {
-    return 42;
-  }
-}
-
-class C extends B {
-  noSuchMethod(Invocation i) => 87;
-
-  method() => super.m();
-}
-
-void main() {
-  C x = new C();
-  Expect.equals(87, x.method());
-}
diff --git a/tests/web_2/no_such_method_strong7_test.dart b/tests/web_2/no_such_method_strong7_test.dart
deleted file mode 100644
index d389d994b23..00000000000
--- a/tests/web_2/no_such_method_strong7_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-abstract class A {
-  get m;
-}
-
-class B implements A {
-  noSuchMethod(Invocation i) {
-    return i.isGetter ? 42 : 87;
-  }
-}
-
-void main() {
-  A x = new B();
-  Expect.equals(42, x.m);
-}
diff --git a/tests/web_2/no_such_method_strong8_test.dart b/tests/web_2/no_such_method_strong8_test.dart
deleted file mode 100644
index f87769d21ef..00000000000
--- a/tests/web_2/no_such_method_strong8_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-abstract class A {
-  set m(_);
-}
-
-class B implements A {
-  noSuchMethod(Invocation i) {
-    return i.isSetter ? i.positionalArguments[0] : 87;
-  }
-}
-
-void main() {
-  A x = new B();
-  Expect.equals(42, x.m = 42);
-}
diff --git a/tests/web_2/no_such_method_strong9_test.dart b/tests/web_2/no_such_method_strong9_test.dart
deleted file mode 100644
index 93037979f3a..00000000000
--- a/tests/web_2/no_such_method_strong9_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-abstract class A {
-  m();
-}
-
-abstract class B implements A {
-  noSuchMethod(Invocation i) {
-    return 42;
-  }
-}
-
-class C extends B {}
-
-class D extends C {
-  noSuchMethod(Invocation i) => 87;
-
-  method() => super.m();
-}
-
-void main() {
-  D x = new D();
-  Expect.equals(87, x.method());
-}
diff --git a/tests/web_2/no_such_method_test.dart b/tests/web_2/no_such_method_test.dart
deleted file mode 100644
index 9d40641a11f..00000000000
--- a/tests/web_2/no_such_method_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--no-minify
-
-import "package:expect/expect.dart";
-
-class NoSuchMethodInfo {
-  Object receiver;
-  Symbol name;
-  List args;
-  NoSuchMethodInfo(Object r, Symbol m, List a)
-      : receiver = r,
-        name = m,
-        args = a;
-}
-
-class A {
-  noSuchMethod(Invocation invocation) {
-    topLevelInfo = new NoSuchMethodInfo(
-        this, invocation.memberName, invocation.positionalArguments);
-    return topLevelInfo;
-  }
-
-  foo(a, b, c) {
-    Expect.fail('Should never enter here');
-  }
-}
-
-// Used for the setter case.
-NoSuchMethodInfo topLevelInfo;
-
-main() {
-  A a = new A();
-  var info = (a as dynamic).foo();
-  Expect.equals(#foo, info.name);
-  Expect.isTrue(info.args.isEmpty);
-  Expect.isTrue(identical(info.receiver, a));
-
-  info = (a as dynamic).foo(2);
-  Expect.equals(#foo, info.name);
-  Expect.isTrue(info.args.length == 1);
-  Expect.isTrue(info.args[0] == 2);
-  Expect.isTrue(identical(info.receiver, a));
-
-  info = (a as dynamic).bar;
-  Expect.equals(#bar, info.name);
-  Expect.isTrue(info.args.length == 0);
-  Expect.isTrue(identical(info.receiver, a));
-
-  (a as dynamic).bar = 2;
-  info = topLevelInfo;
-  Expect.equals(const Symbol('bar='), info.name);
-  Expect.isTrue(info.args.length == 1);
-  Expect.isTrue(info.args[0] == 2);
-  Expect.isTrue(identical(info.receiver, a));
-}
diff --git a/tests/web_2/non_jsinterop_test.dart b/tests/web_2/non_jsinterop_test.dart
deleted file mode 100644
index 1e63305115b..00000000000
--- a/tests/web_2/non_jsinterop_test.dart
+++ /dev/null
@@ -1,271 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// TODO(johnniwinther): Share this test with ddc.
-
-// Test for positive and negative uses of js-interop declarations in a library
-// _without_ a @JS() anntaotion. This file is also used in
-// tests/compiler/dart2js/model/native_test.dart.
-
-library lib;
-
-import 'package:js/js.dart';
-
-var topLevelField;
-
-get topLevelGetter => null;
-
-set topLevelSetter(_) {}
-
-topLevelFunction() {}
-
-@JS('a') // JS_INTEROP_FIELD_NOT_SUPPORTED  //# 01: compile-time error
-var topLevelJsInteropField; //# 01: continued
-
-@JS('a') // JS_INTEROP_NON_EXTERNAL_MEMBER  //# 02: compile-time error
-get topLevelJsInteropGetter => null; //# 02: continued
-
-@JS('a') // JS_INTEROP_NON_EXTERNAL_MEMBER  //# 03: compile-time error
-set topLevelJsInteropSetter(_) {} //# 03: continued
-
-@JS('a') // JS_INTEROP_NON_EXTERNAL_MEMBER  //# 04: compile-time error
-topLevelJsInteropFunction() {} //# 04: continued
-
-// GENERIC  //# 05: compile-time error
-external get externalTopLevelGetter; //# 05: continued
-
-// GENERIC  //# 06: compile-time error
-external set externalTopLevelSetter(_); //# 06: continued
-
-// GENERIC  //# 07: compile-time error
-external externalTopLevelFunction(); //# 07: continued
-
-@JS('a')
-external get externalTopLevelJsInteropGetter;
-
-@JS('b')
-external set externalTopLevelJsInteropSetter(_);
-
-@JS('c')
-external externalTopLevelJsInteropFunction();
-
-class Class {
-  Class.generative();
-  factory Class.fact() => null as dynamic;
-
-  // GENERIC  //# 08: compile-time error
-  external Class.externalGenerative(); //# 08: continued
-
-  // GENERIC  //# 09: compile-time error
-  external factory Class.externalFact(); //# 09: continued
-
-  @JS('a') // GENERIC  //# 11: compile-time error
-  factory Class.jsInteropFact() => null; //# 11: continued
-
-  @JS('a') // GENERIC  //# 12: compile-time error
-  external Class.externalJsInteropGenerative(); //# 12: continued
-
-  @JS('a') // GENERIC  //# 13: compile-time error
-  external factory Class.externalJsInteropFact(); //# 13: continued
-
-  var instanceField;
-  get instanceGetter => null;
-  set instanceSetter(_) {}
-  instanceMethod() {}
-
-  static var staticField;
-  static get staticGetter => null;
-  static set staticSetter(_) {}
-  static staticMethod() {}
-
-  @JS('a') // GENERIC  //# 14: compile-time error
-  var instanceJsInteropField; //# 14: continued
-
-  @JS('a') // GENERIC  //# 15: compile-time error
-  get instanceJsInteropGetter => null; //# 15: continued
-
-  @JS('a') // GENERIC  //# 16: compile-time error
-  set instanceJsInteropSetter(_) {} //# 16: continued
-
-  @JS('a') // GENERIC  //# 17: compile-time error
-  instanceJsInteropMethod() {} //# 17: continued
-
-  @JS('a') // GENERIC  //# 18: compile-time error
-  static var staticJsInteropField; //# 18: continued
-
-  @JS('a') // GENERIC  //# 19: compile-time error
-  static get staticJsInteropGetter => null; //# 19: continued
-
-  @JS('a') // GENERIC  //# 20: compile-time error
-  static set staticJsInteropSetter(_) {} //# 20: continued
-
-  @JS('a') // GENERIC  //# 21: compile-time error
-  static staticJsInteropMethod() {} //# 21: continued
-
-  // GENERIC  //# 22: compile-time error
-  external get externalInstanceGetter; //# 22: continued
-
-  // GENERIC  //# 23: compile-time error
-  external set externalInstanceSetter(_); //# 23: continued
-
-  // GENERIC  //# 24: compile-time error
-  external externalInstanceMethod(); //# 24: continued
-
-  // GENERIC  //# 25: compile-time error
-  external static get externalStaticGetter; //# 25: continued
-
-  // GENERIC  //# 26: compile-time error
-  external static set externalStaticSetter(_); //# 26: continued
-
-  // GENERIC  //# 27: compile-time error
-  external static externalStaticMethod(); //# 27: continued
-
-  @JS('a') // GENERIC  //# 28: compile-time error
-  external get externalInstanceJsInteropGetter; //# 28: continued
-
-  @JS('a') // GENERIC  //# 29: compile-time error
-  external set externalInstanceJsInteropSetter(_); //# 29: continued
-
-  @JS('a') // GENERIC  //# 30: compile-time error
-  external externalInstanceJsInteropMethod(); //# 30: continued
-
-  @JS('a') // GENERIC  //# 31: compile-time error
-  external static get externalStaticJsInteropGetter; //# 31: continued
-
-  @JS('a') // GENERIC  //# 32: compile-time error
-  external static set externalStaticJsInteropSetter(_); //# 32: continued
-
-  @JS('a') // GENERIC  //# 33: compile-time error
-  external static externalStaticJsInteropMethod(); //# 33: continued
-}
-
-@JS('d')
-class JsInteropClass {
-  // GENERIC //# 34: compile-time error
-  JsInteropClass.generative(); //# 34: continued
-
-  // JS_INTEROP_CLASS_NON_EXTERNAL_CONSTRUCTOR //# 35: compile-time error
-  factory JsInteropClass.fact() => null; //# 35: continued
-
-  external JsInteropClass.externalGenerative();
-  external factory JsInteropClass.externalFact();
-
-  @JS('a') // GENERIC //# 36: compile-time error
-  JsInteropClass.jsInteropGenerative(); //# 36: continued
-
-  @JS('a') // JS_INTEROP_CLASS_NON_EXTERNAL_CONSTRUCTOR //# 37: compile-time error
-  factory JsInteropClass.jsInteropFact() => null; //# 37: continued
-
-  @JS('a')
-  external JsInteropClass.externalJsInteropGenerative();
-
-  @JS('a')
-  external factory JsInteropClass.externalJsInteropFact();
-
-  // IMPLICIT_JS_INTEROP_FIELD_NOT_SUPPORTED //# 38: compile-time error
-  var instanceField; //# 38: continued
-
-  // GENERIC //# 39: compile-time error
-  get instanceGetter => null; //# 39: continued
-
-  // GENERIC //# 40: compile-time error
-  set instanceSetter(_) {} //# 40: continued
-
-  // GENERIC //# 41: compile-time error
-  instanceMethod() {} //# 41: continued
-
-  // IMPLICIT_JS_INTEROP_FIELD_NOT_SUPPORTED //# 42: compile-time error
-  static var staticField; //# 42: continued
-
-  // JS_INTEROP_CLASS_NON_EXTERNAL_MEMBER //# 43: compile-time error
-  static get staticGetter => null; //# 43: continued
-
-  // JS_INTEROP_CLASS_NON_EXTERNAL_MEMBER //# 44: compile-time error
-  static set staticSetter(_) {} //# 44: continued
-
-  // JS_INTEROP_CLASS_NON_EXTERNAL_MEMBER //# 45: compile-time error
-  static staticMethod() {} //# 45: continued
-
-  @JS('a') // IMPLICIT_JS_INTEROP_FIELD_NOT_SUPPORTED //# 46: compile-time error
-  var instanceJsInteropField; //# 46: continued
-
-  @JS('a') // GENERIC //# 48: compile-time error
-  get instanceJsInteropGetter => null; //# 48: continued
-
-  @JS('a') // GENERIC //# 49: compile-time error
-  set instanceJsInteropSetter(_) {} //# 49: continued
-
-  @JS('a') // GENERIC //# 50: compile-time error
-  instanceJsInteropMethod() {} //# 50: continued
-
-  @JS('a') // IMPLICIT_JS_INTEROP_FIELD_NOT_SUPPORTED //# 51: compile-time error
-  static var staticJsInteropField; //# 51: continued
-
-  @JS('a') // JS_INTEROP_CLASS_NON_EXTERNAL_MEMBER //# 52: compile-time error
-  static get staticJsInteropGetter => null; //# 52: continued
-
-  @JS('a') // JS_INTEROP_CLASS_NON_EXTERNAL_MEMBER //# 53: compile-time error
-  static set staticJsInteropSetter(_) {} //# 53: continued
-
-  @JS('a') // JS_INTEROP_CLASS_NON_EXTERNAL_MEMBER //# 54: compile-time error
-  static staticJsInteropMethod() {} //# 54: continued
-
-  external get externalInstanceGetter;
-  external set externalInstanceSetter(_);
-  external externalInstanceMethod();
-
-  external static get externalStaticGetter;
-  external static set externalStaticSetter(_);
-  external static externalStaticMethod();
-
-  @JS('a')
-  external get externalInstanceJsInteropGetter;
-
-  @JS('a')
-  external set externalInstanceJsInteropSetter(_);
-
-  @JS('a')
-  external externalInstanceJsInteropMethod();
-
-  @JS('a')
-  external static get externalStaticJsInteropGetter;
-
-  @JS('a')
-  external static set externalStaticJsInteropSetter(_);
-
-  @JS('a')
-  external static externalStaticJsInteropMethod();
-}
-
-bool flag;
-
-main() {
-  if (flag = false) {
-    topLevelSetter = topLevelField = topLevelGetter;
-    topLevelFunction();
-    externalTopLevelJsInteropSetter = externalTopLevelJsInteropGetter;
-    externalTopLevelJsInteropFunction();
-    Class c1 = new Class.generative();
-    new Class.fact();
-    c1.instanceSetter = c1.instanceField = c1.instanceGetter;
-    c1.instanceMethod();
-    Class.staticSetter = Class.staticField = Class.staticGetter;
-    Class.staticMethod();
-    JsInteropClass c2 = new JsInteropClass.externalGenerative();
-    new JsInteropClass.externalFact();
-    new JsInteropClass.externalJsInteropGenerative();
-    new JsInteropClass.externalJsInteropFact();
-    c2.externalInstanceSetter = c2.externalInstanceGetter;
-    c2.externalInstanceMethod();
-    c2.externalInstanceJsInteropSetter = c2.externalInstanceJsInteropGetter;
-    c2.externalInstanceJsInteropMethod();
-    JsInteropClass.externalStaticSetter = JsInteropClass.externalStaticGetter;
-    JsInteropClass.externalStaticMethod();
-    JsInteropClass.externalStaticJsInteropSetter =
-        JsInteropClass.externalStaticJsInteropGetter;
-    JsInteropClass.externalStaticJsInteropMethod();
-  }
-}
diff --git a/tests/web_2/non_trivial_substitution_test.dart b/tests/web_2/non_trivial_substitution_test.dart
deleted file mode 100644
index 6c4fd3e683b..00000000000
--- a/tests/web_2/non_trivial_substitution_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {}
-
-class B {}
-
-class C extends A implements B {}
-
-class Base<T> {}
-
-class Sub implements Base<C> {}
-
-void main() {
-  Expect.subtype<Sub, Base<A>>();
-  Expect.subtype<Sub, Base<B>>();
-}
diff --git a/tests/web_2/not_equals_test.dart b/tests/web_2/not_equals_test.dart
deleted file mode 100644
index 6546736c1e7..00000000000
--- a/tests/web_2/not_equals_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-void main() {
-  var x = 3;
-  if (x != x) {
-    throw "x != x with x == 3";
-  } else {
-    print('good');
-  }
-  var y = x;
-  if (x != y) throw "3 != 3";
-
-  var z = 4;
-  if (x != z) {
-    print('good');
-  } else {
-    throw 'x == z';
-  }
-}
diff --git a/tests/web_2/not_test.dart b/tests/web_2/not_test.dart
deleted file mode 100644
index 250838cf4b1..00000000000
--- a/tests/web_2/not_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-void not1() {
-  var x = !true;
-  Expect.equals(false, x);
-}
-
-void not2() {
-  var x = true;
-  var y = !x;
-  Expect.equals(false, y);
-}
-
-void not3() {
-  var x = true;
-  var y = !x;
-  var z = !y;
-  Expect.equals(true, z);
-}
-
-void not4() {
-  var x = true;
-  if (!x) Expect.fail('unreachable');
-  Expect.equals(true, x);
-}
-
-void main() {
-  not1();
-  not2();
-  not3();
-  not4();
-}
diff --git a/tests/web_2/null_stacktrace_test.dart b/tests/web_2/null_stacktrace_test.dart
deleted file mode 100644
index fa4e7b150aa..00000000000
--- a/tests/web_2/null_stacktrace_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-/// Regression test: stack trace could be null when using async-await.
-import 'dart:async';
-
-import 'package:expect/expect.dart';
-
-main() async {
-  C value = await test();
-  Expect.identical(StackTrace.empty, value._s);
-}
-
-Future<C> test() async {
-  try {
-    await throwInFuture();
-    return C(StackTrace.fromString("no-throw"));
-  } on MyException catch (e, s) {
-    return C(s); // Note: s is *no longer* null
-  }
-}
-
-Future<int> throwInFuture() {
-  var completer = new Completer<int>();
-  var future = completer.future;
-  new Future(() {}).then((_) {
-    StackTrace.fromString("hi");
-    completer.completeError(new MyException());
-  });
-  return future;
-}
-
-class MyException {}
-
-class C {
-  final StackTrace _s; // Global inference used to infer this field as non-null
-  C(this._s);
-
-  @override
-  String toString() => '[[$_s]]';
-}
diff --git a/tests/web_2/null_test.dart b/tests/web_2/null_test.dart
deleted file mode 100644
index c0a4670d40a..00000000000
--- a/tests/web_2/null_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-null1() {
-  return; // implicit null;
-}
-
-null2() {
-  // Implicit null return.
-}
-
-null3() {
-  var x; // Implicit null value.
-  return x;
-}
-
-void main() {
-  Expect.equals(null, null1());
-  Expect.equals(null, null2());
-  Expect.equals(null, null3());
-}
diff --git a/tests/web_2/operator2_test.dart b/tests/web_2/operator2_test.dart
deleted file mode 100644
index f187e7ee07d..00000000000
--- a/tests/web_2/operator2_test.dart
+++ /dev/null
@@ -1,189 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-int zero() {
-  return 0;
-}
-
-int one() {
-  return 1;
-}
-
-int minus1() {
-  return 0 - 1;
-}
-
-int two() {
-  return 2;
-}
-
-int three() {
-  return 3;
-}
-
-int five() {
-  return 5;
-}
-
-int minus5() {
-  return 0 - 5;
-}
-
-int ninetyNine() {
-  return 99;
-}
-
-int four99() {
-  return 499;
-}
-
-int four99times99() {
-  return 499 * 99;
-}
-
-int four99times99plus1() {
-  return 499 * 99 + 1;
-}
-
-void addTest() {
-  var m1 = 0 - 1;
-  var x = 0;
-  x += 0;
-  Expect.equals(0, x);
-  x += one();
-  Expect.equals(1, x);
-  x += m1;
-  Expect.equals(0, x);
-  x += 499;
-  Expect.equals(499, x);
-}
-
-void subTest() {
-  var m1 = 0 - 1;
-  var x = 0;
-  x -= 0;
-  Expect.equals(0, x);
-  x -= one();
-  Expect.equals(m1, x);
-  x -= m1;
-  Expect.equals(0, x);
-  x = 499;
-  x -= one();
-  x -= 98;
-  Expect.equals(400, x);
-}
-
-void mulTest() {
-  var m1 = 0 - 1;
-  var x = 0;
-  x *= 0;
-  Expect.equals(0, x);
-  x = one();
-  x *= 1;
-  Expect.equals(1, x);
-  x *= four99();
-  Expect.equals(499, x);
-  x *= m1;
-  Expect.equals(0 - 499, x);
-}
-
-void divTest() {
-  var m1 = 0.0 - 1.0;
-  var m2 = 0 - 2;
-  num x = two();
-  x /= 2;
-  Expect.equals(1.0, x);
-  x /= 2;
-  Expect.equals(0.5, x);
-  x = four99times99();
-  x /= 99;
-  Expect.equals(499.0, x);
-}
-
-void tdivTest() {
-  var x = 3;
-  x ~/= two();
-  Expect.equals(1, x);
-  x = 49402;
-  x ~/= ninetyNine();
-  Expect.equals(499, x);
-}
-
-void modTest() {
-  var x = five();
-  x %= 3;
-  Expect.equals(2, x);
-  x = 49402;
-  x %= ninetyNine();
-  Expect.equals(1, x);
-}
-
-void shlTest() {
-  var x = five();
-  x <<= 2;
-  Expect.equals(20, x);
-  x <<= 1;
-  Expect.equals(40, x);
-}
-
-void shrTest() {
-  var x = four99();
-  x >>= 1;
-  Expect.equals(249, x);
-  x >>= 2;
-  Expect.equals(62, x);
-}
-
-void andTest() {
-  var x = five();
-  x &= 3;
-  Expect.equals(1, x);
-  x &= 10;
-  Expect.equals(0, x);
-  x = four99();
-  x &= 63;
-  Expect.equals(51, x);
-}
-
-void orTest() {
-  var x = five();
-  x |= 2;
-  Expect.equals(7, x);
-  x |= 7;
-  Expect.equals(7, x);
-  x |= 10;
-  Expect.equals(15, x);
-  x |= 499;
-  Expect.equals(511, x);
-}
-
-void xorTest() {
-  var x = five();
-  x ^= 2;
-  Expect.equals(7, x);
-  x ^= 7;
-  Expect.equals(0, x);
-  x ^= 10;
-  Expect.equals(10, x);
-  x ^= 499;
-  Expect.equals(505, x);
-}
-
-void main() {
-  addTest();
-  subTest();
-  mulTest();
-  divTest();
-  tdivTest();
-  modTest();
-  shlTest();
-  shrTest();
-  andTest();
-  orTest();
-  xorTest();
-}
diff --git a/tests/web_2/operator3_test.dart b/tests/web_2/operator3_test.dart
deleted file mode 100644
index be9ec138e1d..00000000000
--- a/tests/web_2/operator3_test.dart
+++ /dev/null
@@ -1,94 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-int zero() {
-  return 0;
-}
-
-int one() {
-  return 1;
-}
-
-int minus1() {
-  return 0 - 1;
-}
-
-int two() {
-  return 2;
-}
-
-int three() {
-  return 3;
-}
-
-int five() {
-  return 5;
-}
-
-int minus5() {
-  return 0 - 5;
-}
-
-int ninetyNine() {
-  return 99;
-}
-
-int four99() {
-  return 499;
-}
-
-int four99times99() {
-  return 499 * 99;
-}
-
-int four99times99plus1() {
-  return 499 * 99 + 1;
-}
-
-void postPlusPlusTest() {
-  var x = zero();
-  var y = x++;
-  Expect.equals(0, y);
-  Expect.equals(1, x);
-  Expect.equals(1, x++);
-  Expect.equals(2, x);
-}
-
-void prePlusPlusTest() {
-  var x = zero();
-  var y = ++x;
-  Expect.equals(1, x);
-  Expect.equals(1, y);
-  Expect.equals(2, ++x);
-  Expect.equals(2, ++y);
-}
-
-void postMinusMinusTest() {
-  var x = four99();
-  var y = x--;
-  Expect.equals(499, y);
-  Expect.equals(498, x);
-  Expect.equals(498, x--);
-  Expect.equals(497, x);
-}
-
-void preMinusMinusTest() {
-  var x = four99();
-  var y = --x;
-  Expect.equals(498, y);
-  Expect.equals(498, x);
-  Expect.equals(497, --x);
-  Expect.equals(497, x);
-}
-
-void main() {
-  postPlusPlusTest();
-  prePlusPlusTest();
-  postMinusMinusTest();
-  preMinusMinusTest();
-}
diff --git a/tests/web_2/operator_equals_test.dart b/tests/web_2/operator_equals_test.dart
deleted file mode 100644
index 595775a7519..00000000000
--- a/tests/web_2/operator_equals_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class AlwaysTrue {
-  operator ==(a) => true;
-}
-
-class AlwaysFalse {
-  operator ==(b) => false;
-}
-
-main() {
-  dynamic a = new AlwaysTrue();
-  Expect.isTrue(a == 2);
-  Expect.isFalse(a == null);
-  Expect.isFalse(a != 2);
-  Expect.isTrue(a != null);
-
-  a = new AlwaysFalse();
-  Expect.isFalse(a == 2);
-  Expect.isFalse(a == null);
-  Expect.isTrue(a != 2);
-  Expect.isTrue(a != null);
-}
diff --git a/tests/web_2/operator_test.dart b/tests/web_2/operator_test.dart
deleted file mode 100644
index 56645372105..00000000000
--- a/tests/web_2/operator_test.dart
+++ /dev/null
@@ -1,566 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-@pragma('dart2js:noInline')
-asNum(x) {
-  var result = confuse(x);
-  if (result is num) return result;
-  throw new ArgumentError.value(x);
-}
-
-@pragma('dart2js:noInline')
-uint31(x) {
-  var result = confuse(x);
-  if (x is int) {
-    var masked = 0x7fffffff & x; // inferred uint31 type.
-    if (masked == x) return masked;
-  }
-  throw new ArgumentError('Not uint31: $x');
-}
-
-@pragma('dart2js:noInline')
-uint32(x) {
-  var result = confuse(x);
-  if (x is int) {
-    var masked = 0xffffffff & x; // inferred uint32 type.
-    if (masked == x) return masked;
-  }
-  throw new ArgumentError('Not uint32: $x');
-}
-
-@pragma('dart2js:noInline')
-int zero() {
-  return 0;
-}
-
-@pragma('dart2js:noInline')
-int one() {
-  return 1;
-}
-
-@pragma('dart2js:noInline')
-int minus1() {
-  return 0 - 1;
-}
-
-@pragma('dart2js:noInline')
-int minus2() {
-  return 0 - 2;
-}
-
-@pragma('dart2js:noInline')
-int two() {
-  return 2;
-}
-
-@pragma('dart2js:noInline')
-int three() {
-  return 3;
-}
-
-@pragma('dart2js:noInline')
-int five() {
-  return 5;
-}
-
-@pragma('dart2js:noInline')
-int minus5() {
-  return 0 - 5;
-}
-
-@pragma('dart2js:noInline')
-int ninetyNine() {
-  return 99;
-}
-
-@pragma('dart2js:noInline')
-int four99() {
-  return 499;
-}
-
-@pragma('dart2js:noInline')
-int four99times99() {
-  return 499 * 99;
-}
-
-@pragma('dart2js:noInline')
-int four99times99plus1() {
-  return 499 * 99 + 1;
-}
-
-@pragma('dart2js:noInline')
-void addTest() {
-  var m1 = 0 - 1;
-  Expect.equals(0, 0 + 0);
-  Expect.equals(0, confuse(0) + 0);
-  Expect.equals(0, asNum(0) + 0);
-  Expect.equals(0, uint31(0) + 0);
-
-  Expect.equals(m1, m1 + 0);
-  Expect.equals(0, m1 + 1);
-  Expect.equals(499, 400 + 99);
-  Expect.equals(1, 0 + one());
-  Expect.equals(1, one() + 0);
-  Expect.equals(2, one() + one());
-}
-
-@pragma('dart2js:noInline')
-void subTest() {
-  var m1 = 0 - 1;
-  Expect.equals(0, 0 - 0);
-  Expect.equals(m1, 0 - 1);
-  Expect.equals(0, 1 - 1);
-  Expect.equals(400, 499 - 99);
-  Expect.equals(m1, 0 - one());
-  Expect.equals(1, one() - 0);
-  Expect.equals(0, one() - one());
-}
-
-@pragma('dart2js:noInline')
-void mulTest() {
-  var m1 = 0 - 1;
-  Expect.equals(0, 0 * 0);
-  Expect.equals(m1, m1 * 1);
-  Expect.equals(1, 1 * 1);
-  Expect.equals(49401, 499 * 99);
-  Expect.equals(499, 499 * one());
-  Expect.equals(499, one() * 499);
-  Expect.equals(49401, four99() * 99);
-}
-
-@pragma('dart2js:noInline')
-void divTest() {
-  var m1 = 0.0 - 1.0;
-  var m2 = 0 - 2;
-  Expect.equals(1.0, 2 / 2);
-  Expect.equals(m1, m2 / 2);
-  Expect.equals(m1, minus2() / 2);
-  Expect.equals(0.5, 1 / 2);
-  Expect.equals(499.0, 49401 / 99);
-
-  Expect.equals(1.0, two() / 2);
-  Expect.equals(1.0, 2 / two());
-  Expect.equals(m1, m2 / two());
-  Expect.equals(m1, minus2() / two());
-  Expect.equals(m1, two() / m2);
-  Expect.equals(m1, two() / minus2());
-  Expect.equals(0.5, 1 / two());
-  Expect.equals(0.5, one() / 2);
-  Expect.equals(499.0, four99times99() / 99);
-
-  Expect.equals(1.5, confuse(150) / confuse(100));
-}
-
-@pragma('dart2js:noInline')
-void tdivTest() {
-  var m1 = 0 - 1;
-  var m2 = 0 - 2;
-  Expect.equals(1, 2 ~/ 2);
-  Expect.equals(m1, m2 ~/ 2);
-  Expect.equals(0, 1 ~/ 2);
-  Expect.equals(0, m1 ~/ 2);
-  Expect.equals(499, 49401 ~/ 99);
-  Expect.equals(499, 49402 ~/ 99);
-
-  Expect.equals(1, two() ~/ 2);
-  Expect.equals(1, 2 ~/ two());
-  Expect.equals(m1, m2 ~/ two());
-  Expect.equals(m1, two() ~/ m2);
-  Expect.equals(0, 1 ~/ two());
-  Expect.equals(0, one() ~/ 2);
-  Expect.equals(499, four99times99() ~/ 99);
-  Expect.equals(499, four99times99plus1() ~/ 99);
-
-  Expect.equals(-33, -100 ~/ 3);
-  Expect.equals(-33, asNum(-100) ~/ 3);
-  Expect.equals(33, -100 ~/ -3);
-  Expect.equals(33, asNum(-100) ~/ -3);
-
-  // Signed int32 boundary is involved in optimizations.
-
-  Expect.equals(-0x80000000, -0x80000000 ~/ 1.0);
-  Expect.equals(-0x80000000, -0x80000000 ~/ 1.0000000000000001);
-  Expect.equals(-0x7fffffff, -0x80000000 ~/ 1.0000000000000002);
-
-  Expect.equals(-0x80000000, asNum(-0x80000000) ~/ 1.0);
-  Expect.equals(-0x80000000, asNum(-0x80000000) ~/ 1.0000000000000001);
-  Expect.equals(-0x7fffffff, asNum(-0x80000000) ~/ 1.0000000000000002);
-
-  Expect.equals(-0x80000000, asNum(0x80000000) ~/ -1.0);
-  Expect.equals(-0x80000000, asNum(0x80000000) ~/ -1.0000000000000001);
-  Expect.equals(-0x7fffffff, asNum(0x80000000) ~/ -1.0000000000000002);
-
-  Expect.equals(0x7fffffff, 0x10000000 ~/ .12500000000000002);
-  Expect.equals(0x80000000, 0x10000000 ~/ .125);
-  Expect.equals(-0x7fffffff, 0x10000000 ~/ -.12500000000000002);
-  Expect.equals(-0x80000000, 0x10000000 ~/ -.125);
-
-  Expect.equals(0x7fffffff, uint31(0x10000000) ~/ .12500000000000002);
-  Expect.equals(0x80000000, uint31(0x10000000) ~/ .125);
-  Expect.equals(-0x7fffffff, uint31(0x10000000) ~/ -.12500000000000002);
-  Expect.equals(-0x80000000, uint31(0x10000000) ~/ -.125);
-
-  // These can be compiled to `(a / 2) | 0`.
-  Expect.equals(100, uint31(200) ~/ 2);
-  Expect.equals(100, uint32(200) ~/ 2);
-
-  Expect.equals(100, asNum(200) ~/ 2);
-  Expect.equals(100, confuse(200) ~/ 2);
-  Expect.equals(-100, uint31(200) ~/ -2);
-  Expect.equals(-100, uint32(200) ~/ -2);
-  Expect.equals(-100, asNum(200) ~/ -2);
-  Expect.equals(-100, confuse(200) ~/ -2);
-
-  // These can be compiled to `((a + b) / 2) | 0`.
-  Expect.equals(100, (uint31(100) + uint31(100)) ~/ 2);
-  Expect.equals(0x7fffffff, (uint31(0x7fffffff) + uint31(0x7fffffff)) ~/ 2);
-
-  // NaN and Infinity results are errors.
-  Expect.throws(() => -1 ~/ 0);
-  Expect.throws(() => 1.5 ~/ 0);
-  Expect.throws(() => 1e200 ~/ 1e-200);
-  Expect.throws(() => -1e200 ~/ 1e-200);
-  Expect.throws(() => 1e200 ~/ -1e-200);
-  Expect.throws(() => -1e200 ~/ -1e-200);
-  Expect.throws(() => double.nan ~/ 2);
-}
-
-@pragma('dart2js:noInline')
-void modTest() {
-  var m5 = 0 - 5;
-  var m3 = 0 - 3;
-  Expect.equals(2, 5 % 3);
-  Expect.equals(0, 49401 % 99);
-  Expect.equals(1, 49402 % 99);
-  Expect.equals(1, m5 % 3);
-  Expect.equals(2, 5 % m3);
-
-  Expect.equals(2, five() % 3);
-  Expect.equals(2, 5 % three());
-  Expect.equals(0, four99times99() % 99);
-  Expect.equals(1, four99times99plus1() % 99);
-  Expect.equals(1, minus5() % 3);
-  Expect.equals(2, five() % m3);
-}
-
-@pragma('dart2js:noInline')
-void remainderTest() {
-  var m5 = 0 - 5;
-  Expect.equals(2, confuse(5).remainder(3));
-  Expect.equals(0, confuse(49401).remainder(99));
-  Expect.equals(1, confuse(49402).remainder(99));
-  Expect.equals(-2, confuse(m5).remainder(3));
-  Expect.equals(2, confuse(5).remainder(-3));
-
-  Expect.equals(2, uint32(5).remainder(3));
-  Expect.equals(0, uint32(49401).remainder(99));
-  Expect.equals(1, uint32(49402).remainder(99));
-  Expect.equals(-2, (-5).remainder(uint32(3)));
-  Expect.equals(2, uint32(5).remainder(-3));
-
-  Expect.equals(2, 5.remainder(3));
-  Expect.equals(0, 49401.remainder(99));
-  Expect.equals(1, 49402.remainder(99));
-  Expect.equals(-2, (-5).remainder(3));
-  Expect.equals(2, 5.remainder(-3));
-
-  Expect.equals(2, five().remainder(3));
-  Expect.equals(2, 5.remainder(three()));
-  Expect.equals(0, four99times99().remainder(99));
-  Expect.equals(1, four99times99plus1().remainder(99));
-  Expect.equals(-2, minus5().remainder(3));
-  Expect.equals(2, five().remainder(-3));
-}
-
-@pragma('dart2js:noInline')
-void shlTest() {
-  Expect.equals(2, 1 << 1);
-  Expect.equals(8, 1 << 3);
-  Expect.equals(6, 3 << 1);
-
-  Expect.equals(10, five() << 1);
-  Expect.equals(24, 3 << three());
-
-  Expect.equals(10, confuse(5) << 1);
-  Expect.equals(24, 3 << confuse(3));
-
-  Expect.equals(10, uint31(5) << 1);
-  Expect.equals(24, 3 << uint31(3));
-
-  Expect.equals(10, asNum(5) << 1);
-  Expect.equals(24, 3 << asNum(3));
-}
-
-@pragma('dart2js:noInline')
-void shrTest() {
-  Expect.equals(1, 2 >> 1);
-  Expect.equals(1, 8 >> 3);
-  Expect.equals(3, 6 >> 1);
-
-  Expect.equals(6, ninetyNine() >> 4);
-  Expect.equals(6, confuse(99) >> 4);
-  Expect.equals(6, asNum(99) >> 4);
-  Expect.equals(6, uint31(99) >> 4);
-
-  Expect.equals(6, 99 >> 4);
-  Expect.equals(6, 99 >> confuse(4));
-  Expect.equals(6, 99 >> asNum(4));
-  Expect.equals(6, 99 >> uint31(4));
-
-  Expect.equals(0, uint31(1) >> 31);
-  Expect.equals(0, asNum(0xffffffff) >> 32);
-}
-
-@pragma('dart2js:noInline')
-void andTest() {
-  Expect.equals(2, 10 & 3);
-  Expect.equals(7, 15 & 7);
-  Expect.equals(10, 10 & 10);
-
-  Expect.equals(99, ninetyNine() & ninetyNine());
-  Expect.equals(34, four99() & 42);
-  Expect.equals(3, minus5() & 7);
-
-  Expect.equals(0, uint31(0x7ffffffe) & uint31(1));
-  Expect.equals(0, asNum(0x7ffffffe) & asNum(1));
-}
-
-@pragma('dart2js:noInline')
-void orTest() {
-  Expect.equals(11, 10 | 3);
-  Expect.equals(15, 15 | 7);
-  Expect.equals(10, 10 | 10);
-
-  Expect.equals(99, ninetyNine() | ninetyNine());
-  Expect.equals(507, four99() | 42);
-
-  Expect.equals(11, asNum(10) | 3);
-  Expect.equals(15, asNum(15) | 7);
-  Expect.equals(10, asNum(10) | 10);
-}
-
-@pragma('dart2js:noInline')
-void xorTest() {
-  Expect.equals(9, 10 ^ 3);
-  Expect.equals(8, 15 ^ 7);
-  Expect.equals(0, 10 ^ 10);
-
-  Expect.equals(0, ninetyNine() ^ ninetyNine());
-  Expect.equals(473, four99() ^ 42);
-  Expect.equals(0, minus5() ^ -5);
-  Expect.equals(6, minus5() ^ -3);
-}
-
-@pragma('dart2js:noInline')
-void notTest() {
-  Expect.equals(4, ~minus5());
-}
-
-@pragma('dart2js:noInline')
-void negateTest() {
-  Expect.equals(minus5(), -5);
-  Expect.equals(-5, -five());
-  Expect.equals(5, -minus5());
-
-  Expect.equals(-3, -confuse(3));
-  Expect.equals(-3, -asNum(3));
-  Expect.equals(-3, -uint31(3));
-
-  Expect.equals(3, -confuse(-3));
-  Expect.equals(3, -asNum(-3));
-}
-
-@pragma('dart2js:noInline')
-void equalsTest() {
-  // Equality of normal numbers is already well tested with "Expect.equals".
-  Expect.equals(true, true == true);
-  Expect.equals(true, false == false);
-  Expect.equals(true, 0 == 0);
-  Expect.equals(true, null == null);
-
-  Expect.equals(false, 1 == 2);
-  Expect.equals(false, 1 == "foo");
-  Expect.equals(false, 1 == true);
-  Expect.equals(false, 1 == false);
-  Expect.equals(false, false == "");
-  Expect.equals(false, false == 0);
-  Expect.equals(false, false == null);
-  Expect.equals(false, "" == false);
-  Expect.equals(false, 0 == false);
-  Expect.equals(false, null == false);
-
-  var falseValue = false;
-  var trueValue = true;
-  var nullValue = null;
-  if (one() == 2) {
-    falseValue = true;
-    trueValue = false;
-    nullValue = 5;
-  }
-
-  Expect.equals(true, true == trueValue);
-  Expect.equals(true, false == falseValue);
-  Expect.equals(true, 1 == one());
-  Expect.equals(true, null == nullValue);
-  Expect.equals(false, one() == 2);
-  Expect.equals(false, one() == "foo");
-  Expect.equals(false, one() == true);
-  Expect.equals(false, one() == false);
-  Expect.equals(false, falseValue == "");
-  Expect.equals(false, falseValue == 0);
-  Expect.equals(false, falseValue == null);
-  Expect.equals(false, "" == falseValue);
-  Expect.equals(false, 0 == falseValue);
-  Expect.equals(false, null == falseValue);
-}
-
-@pragma('dart2js:noInline')
-void lessTest() {
-  var m1 = minus1();
-  Expect.equals(true, 1 < 2);
-  Expect.equals(false, 2 < 1);
-  Expect.equals(false, 1 < 1);
-
-  Expect.equals(true, 0 < 1);
-  Expect.equals(false, 1 < 0);
-  Expect.equals(false, 0 < 0);
-
-  Expect.equals(true, one() < 2);
-  Expect.equals(false, 2 < one());
-  Expect.equals(false, 1 < one());
-
-  Expect.equals(true, 0 < one());
-  Expect.equals(false, one() < 0);
-  Expect.equals(false, 0 < 0);
-
-  Expect.equals(true, m1 < 0);
-  Expect.equals(false, 0 < m1);
-  Expect.equals(false, m1 < m1);
-
-  Expect.equals(true, minus1() < 0);
-  Expect.equals(false, 0 < minus1());
-  Expect.equals(false, minus1() < minus1());
-}
-
-@pragma('dart2js:noInline')
-void lessEqualTest() {
-  var m1 = minus1();
-  Expect.equals(true, 1 <= 2);
-  Expect.equals(false, 2 <= 1);
-  Expect.equals(true, 1 <= 1);
-
-  Expect.equals(true, 0 <= 1);
-  Expect.equals(false, 1 <= 0);
-  Expect.equals(true, 0 <= 0);
-
-  Expect.equals(true, confuse(1) <= 2);
-  Expect.equals(false, confuse(2) <= 1);
-  Expect.equals(true, confuse(1) <= 1);
-
-  Expect.equals(true, confuse(0) <= 1);
-  Expect.equals(false, confuse(1) <= 0);
-  Expect.equals(true, confuse(0) <= 0);
-
-  Expect.equals(true, one() <= 2);
-  Expect.equals(false, 2 <= one());
-  Expect.equals(true, 1 <= one());
-
-  Expect.equals(true, 0 <= one());
-  Expect.equals(false, one() <= 0);
-  Expect.equals(true, 0 <= 0);
-
-  Expect.equals(true, m1 <= 0);
-  Expect.equals(false, 0 <= m1);
-  Expect.equals(true, m1 <= m1);
-
-  Expect.equals(true, minus1() <= 0);
-  Expect.equals(false, 0 <= minus1());
-  Expect.equals(true, minus1() <= minus1());
-}
-
-@pragma('dart2js:noInline')
-void greaterTest() {
-  var m1 = minus1();
-  Expect.equals(false, 1 > 2);
-  Expect.equals(true, 2 > 1);
-  Expect.equals(false, 1 > 1);
-
-  Expect.equals(false, 0 > 1);
-  Expect.equals(true, 1 > 0);
-  Expect.equals(false, 0 > 0);
-
-  Expect.equals(false, one() > 2);
-  Expect.equals(true, 2 > one());
-  Expect.equals(false, 1 > one());
-
-  Expect.equals(false, 0 > one());
-  Expect.equals(true, one() > 0);
-  Expect.equals(false, 0 > 0);
-
-  Expect.equals(false, m1 > 0);
-  Expect.equals(true, 0 > m1);
-  Expect.equals(false, m1 > m1);
-
-  Expect.equals(false, minus1() > 0);
-  Expect.equals(true, 0 > minus1());
-  Expect.equals(false, minus1() > minus1());
-}
-
-@pragma('dart2js:noInline')
-void greaterEqualTest() {
-  var m1 = minus1();
-  Expect.equals(false, 1 >= 2);
-  Expect.equals(true, 2 >= 1);
-  Expect.equals(true, 1 >= 1);
-
-  Expect.equals(false, 0 >= 1);
-  Expect.equals(true, 1 >= 0);
-  Expect.equals(true, 0 >= 0);
-
-  Expect.equals(false, one() >= 2);
-  Expect.equals(true, 2 >= one());
-  Expect.equals(true, 1 >= one());
-
-  Expect.equals(false, 0 >= one());
-  Expect.equals(true, one() >= 0);
-  Expect.equals(true, 0 >= 0);
-
-  Expect.equals(false, m1 >= 0);
-  Expect.equals(true, 0 >= m1);
-  Expect.equals(true, m1 >= m1);
-
-  Expect.equals(false, minus1() >= 0);
-  Expect.equals(true, 0 >= minus1());
-  Expect.equals(true, minus1() >= minus1());
-}
-
-void main() {
-  addTest();
-  subTest();
-  mulTest();
-  divTest();
-  tdivTest();
-  modTest();
-  remainderTest();
-  shlTest();
-  shrTest();
-  andTest();
-  orTest();
-  xorTest();
-  notTest();
-  negateTest();
-  equalsTest();
-  lessTest();
-  lessEqualTest();
-  greaterTest();
-  greaterEqualTest();
-}
diff --git a/tests/web_2/optional_parameter_test.dart b/tests/web_2/optional_parameter_test.dart
deleted file mode 100644
index 790f638fcac..00000000000
--- a/tests/web_2/optional_parameter_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {
-  foo([a]) {
-    return a;
-  }
-
-  bar(a, [b]) {
-    return b;
-  }
-
-  noSuchMethod(mirror) {
-    return 0;
-  }
-}
-
-main() {
-  A a = new A();
-  Expect.equals(42, a.foo(42));
-  Expect.equals(null, a.foo());
-  Expect.equals(null, a.bar(42));
-  Expect.equals(42, a.bar(null, 42));
-  Expect.equals(0, (a as dynamic).foo(1, 2));
-  Expect.equals(0, (a as dynamic).bar());
-  Expect.equals(0, (a as dynamic).bar(1, 2, 3));
-}
diff --git a/tests/web_2/panda_lib.dart b/tests/web_2/panda_lib.dart
deleted file mode 100644
index 92103619ed1..00000000000
--- a/tests/web_2/panda_lib.dart
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-library panda_lib;
-
-class Panda {
-  Panda() {}
-}
diff --git a/tests/web_2/panda_test.dart b/tests/web_2/panda_test.dart
deleted file mode 100644
index a825aa7ab8e..00000000000
--- a/tests/web_2/panda_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-library panda_test;
-
-import "package:expect/expect.dart";
-import 'panda_lib.dart' as p;
-
-void main() {
-  p.Panda x = new p.Panda();
-  Expect.isTrue(x is p.Panda);
-  x = null;
-  Expect.isFalse(x is p.Panda);
-}
diff --git a/tests/web_2/phi_elimination_test.dart b/tests/web_2/phi_elimination_test.dart
deleted file mode 100644
index 85849399949..00000000000
--- a/tests/web_2/phi_elimination_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-void bar() {
-  var a = 0;
-  var c = 0;
-
-  if (a == 0)
-    c = a++;
-  else
-    c = a--;
-
-  Expect.equals(1, a);
-  Expect.equals(0, c);
-
-  if (a == 0)
-    c = a++;
-  else
-    c = a--;
-
-  Expect.equals(0, a);
-  Expect.equals(1, c);
-}
-
-void foo() {
-  var a = 0;
-  var c = 0;
-
-  if (a == 0) {
-    c = a;
-    a = a + 1;
-  } else {
-    c = a;
-    a = a - 1;
-  }
-
-  Expect.equals(1, a);
-  Expect.equals(0, c);
-
-  if (a == 0) {
-    c = a;
-    a = a + 1;
-  } else {
-    c = a;
-    a = a - 1;
-  }
-
-  Expect.equals(0, a);
-  Expect.equals(1, c);
-}
-
-main() {
-  foo();
-  bar();
-}
diff --git a/tests/web_2/phi_gvn_test.dart b/tests/web_2/phi_gvn_test.dart
deleted file mode 100644
index e2cf05fe3f2..00000000000
--- a/tests/web_2/phi_gvn_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-foo(x) {}
-
-main() {
-  for (var i = 0; i < 1; i++) {
-    foo(i + 1);
-    Expect.equals(0, i);
-  }
-}
diff --git a/tests/web_2/phi_test.dart b/tests/web_2/phi_test.dart
deleted file mode 100644
index f9b5dda94e5..00000000000
--- a/tests/web_2/phi_test.dart
+++ /dev/null
@@ -1,172 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-void phi1() {
-  var x = 42;
-  if (true) {
-    Expect.equals(42, x);
-    print(x);
-  }
-  Expect.equals(42, x);
-  print(x);
-}
-
-void phi2() {
-  var x = 499;
-  if (true) {
-    Expect.equals(499, x);
-    x = 42;
-  }
-  Expect.equals(42, x);
-  print(x);
-}
-
-void phi3() {
-  var x = 499;
-  if (true) {
-    Expect.equals(499, x);
-    x = 42;
-  } else {
-    Expect.fail('unreachable');
-    print(x);
-  }
-  Expect.equals(42, x);
-  print(x);
-}
-
-void phi4() {
-  var x = 499;
-  if (true) {
-    Expect.equals(499, x);
-    print(x);
-  } else {
-    Expect.fail('unreachable');
-    x = 42;
-  }
-  Expect.equals(499, x);
-  print(x);
-}
-
-void phi5() {
-  var x = 499;
-  if (true) {
-    if (true) {
-      Expect.equals(499, x);
-      x = 42;
-    }
-  }
-  Expect.equals(42, x);
-  print(x);
-}
-
-void phi6() {
-  var x = 499;
-  if (true) {
-    if (true) {
-      Expect.equals(499, x);
-      print(x);
-    } else {
-      x = 42;
-      Expect.fail('unreachable');
-    }
-  }
-  Expect.equals(499, x);
-  print(x);
-}
-
-void phi7() {
-  var x = 499;
-  if (true) {
-    x = 42;
-    if (true) {
-      Expect.equals(42, x);
-      x = 99;
-    } else {
-      x = 111;
-      Expect.fail('unreachable');
-    }
-  } else {
-    Expect.fail('unreachable');
-    if (false) {
-      x = 341;
-    } else {
-      x = 1024;
-    }
-  }
-  Expect.equals(99, x);
-  print(x);
-}
-
-void phi8() {
-  var x = 499;
-  if (true) {
-    x = 42;
-    if (true) {
-      Expect.equals(42, x);
-      x = 99;
-    } else {
-      Expect.fail('unreachable');
-      x = 111;
-    }
-  } else {
-    Expect.fail('unreachable');
-    if (false) {
-      x = 341;
-    } else {
-      x = 1024;
-    }
-  }
-  if (true) {
-    Expect.equals(99, x);
-    x = 12342;
-    if (true) {
-      x = 12399;
-    } else {
-      Expect.fail('unreachable');
-      x = 123111;
-    }
-  } else {
-    Expect.fail('unreachable');
-    if (false) {
-      x = 123341;
-    } else {
-      x = 1231024;
-    }
-  }
-  Expect.equals(12399, x);
-  print(x);
-}
-
-void phi9() {
-  var x = 499;
-  if (true) {
-    var y = 42;
-    if (true) {
-      y = 99;
-    } else {
-      Expect.fail('unreachable');
-      x = 111;
-    }
-    Expect.equals(99, y);
-    print(y);
-  }
-  Expect.equals(499, x);
-  print(x);
-}
-
-void main() {
-  phi1();
-  phi2();
-  phi3();
-  phi4();
-  phi5();
-  phi6();
-  phi7();
-  phi8();
-  phi9();
-}
diff --git a/tests/web_2/recursive_metadata_test.dart b/tests/web_2/recursive_metadata_test.dart
deleted file mode 100644
index 01724036d9f..00000000000
--- a/tests/web_2/recursive_metadata_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-// Tests that the compiler doesn't crash resolving annotations that refer
-// to other annotated types.
-
-class Annotation {
-  final String value;
-  const Annotation({this.value});
-}
-
-enum Enum {
-  a,
-  b,
-}
-
-class SubAnno extends Annotation {
-  final Enum e;
-  final Type type;
-  const SubAnno({String value, this.e, this.type}) : super(value: value);
-}
-
-@SubAnno(value: 'super')
-class A {}
-
-@SubAnno(value: 'sub')
-class B extends A {}
-
-@SubAnno(type: B)
-class C {}
-
-main() {
-  var c = new C();
-  Expect.isTrue(c != null);
-}
diff --git a/tests/web_2/regress/issue/10216a_test.dart b/tests/web_2/regress/issue/10216a_test.dart
deleted file mode 100644
index f3d151cba4b..00000000000
--- a/tests/web_2/regress/issue/10216a_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-// Tests codegen of methods reached only via mixin.
-
-class A {
-  foo(x, [y]) => '$x;$y';
-}
-
-class B extends A with M1, M2, M3 {}
-
-class M1 {}
-
-class M2 {
-  // These methods are only defined in this non-first, non-last mixin.
-  plain(x) => 'P $x';
-  // Check arity stubs are also available.
-  bar(x, [y]) => '$y,$x';
-}
-
-class M3 {}
-
-makeB() {
-  return [new A(), new B()].last as B;
-}
-
-main() {
-  // makeB enters the compilation worklist after main, so the selectors are
-  // registered before the classes.
-  var b = makeB();
-  Expect.equals('1;2', b.foo(1, 2));
-  Expect.equals('2;null', b.foo(2));
-  Expect.equals('P 3', b.plain(3));
-  Expect.equals('100,4', b.bar(4, 100));
-  Expect.equals('null,5', b.bar(5));
-}
diff --git a/tests/web_2/regress/issue/10216b_test.dart b/tests/web_2/regress/issue/10216b_test.dart
deleted file mode 100644
index cf8031b648f..00000000000
--- a/tests/web_2/regress/issue/10216b_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-// Tests codegen of methods reached only via mixin.
-
-class A {
-  foo(x, [y]) => '$x;$y';
-}
-
-class B extends A with M1, M2, M3 {}
-
-class M1 {}
-
-class M2 {
-  // These methods are only defined in this non-first, non-last mixin.
-  plain(x) => 'P $x';
-  // Check arity stubs are also available.
-  bar(x, [y]) => '$y,$x';
-}
-
-class M3 {}
-
-test() {
-  var b = [new A(), new B()].last as B;
-  Expect.equals('1;2', b.foo(1, 2));
-  Expect.equals('2;null', b.foo(2));
-  Expect.equals('P 3', b.plain(3));
-  Expect.equals('100,4', b.bar(4, 100));
-  Expect.equals('null,5', b.bar(5));
-}
-
-main() {
-  new A();
-  new B();
-  // 'test' enters the compilation worklist after main, so the classes are
-  // registered before the selectors.
-  test();
-}
diff --git a/tests/web_2/regress/issue/11673_test.dart b/tests/web_2/regress/issue/11673_test.dart
deleted file mode 100644
index 3be867ade93..00000000000
--- a/tests/web_2/regress/issue/11673_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-// Tests codegen of methods reached only via interface implemented by mixin
-// application.
-
-class JSIB {}
-
-class TD {}
-
-class M {
-  foo() => 123;
-}
-
-class I8 extends TD with M implements JSIB {}
-
-use(x) {
-  if (x is JSIB) {
-    // Should be able to find M.foo since I8 is a subtype of both JSIB and M.
-    Expect.equals(123, (x as dynamic).foo());
-  }
-}
-
-main() {
-  (use)(new I8());
-}
diff --git a/tests/web_2/regress/issue/12320_test.dart b/tests/web_2/regress/issue/12320_test.dart
deleted file mode 100644
index 9be0b410722..00000000000
--- a/tests/web_2/regress/issue/12320_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-// Regression test for Issue 12320, Issue 12363.
-
-String log = '';
-int x;
-
-void main() {
-  (run)(run);
-  // The little dance with passing [run] as an argument to confuse the optimizer
-  // so that [run] is not inlined.  If [run] is inlined, the bug (Issue 12320)
-  // eliminates the following 'Expect', making the test appear to pass!
-  Expect.equals('[Foo][Foo 1][Bar][Foo][Foo 0]', log);
-}
-
-void run(f) {
-  if (f is! int) {
-    f(1);
-  } else {
-    x = f;
-    callFoo();
-    x = 2;
-    callBar();
-    callFoo();
-  }
-}
-
-void callFoo() {
-  log += '[Foo]';
-  switch (x) {
-    case 0:
-      log += '[Foo 0]';
-      break;
-    case 1:
-      log += '[Foo 1]';
-      break;
-    default:
-      throw 'invalid x';
-  }
-}
-
-void callBar() {
-  log += '[Bar]';
-  x = 0;
-}
diff --git a/tests/web_2/regress/issue/12_test.dart b/tests/web_2/regress/issue/12_test.dart
deleted file mode 100644
index 069d26c37c9..00000000000
--- a/tests/web_2/regress/issue/12_test.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-void main() {
-  print(3 + 4 + 5);
-}
diff --git a/tests/web_2/regress/issue/16400_test.dart b/tests/web_2/regress/issue/16400_test.dart
deleted file mode 100644
index 64b820b5392..00000000000
--- a/tests/web_2/regress/issue/16400_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-main() {
-  L:
-  {
-    var seeMe = 0;
-    if (seeMe == 0) {
-      ++seeMe;
-      break L;
-    }
-    var wontSeeMe = 2;
-    if (seeMe + wontSeeMe == 2) {
-      return true;
-    } else {
-      return false;
-    }
-  }
-}
diff --git a/tests/web_2/regress/issue/16407_test.dart b/tests/web_2/regress/issue/16407_test.dart
deleted file mode 100644
index a84b9a4ca72..00000000000
--- a/tests/web_2/regress/issue/16407_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-// Regression test for Issue 16407.
-
-void main() {
-  foo(null, true);
-  foo('x', false);
-}
-
-var foo = (x, result) {
-  Expect.equals(result, x is Null, '$x is Null');
-};
diff --git a/tests/web_2/regress/issue/16967_test.dart b/tests/web_2/regress/issue/16967_test.dart
deleted file mode 100644
index 6185102d494..00000000000
--- a/tests/web_2/regress/issue/16967_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-// Regression test for http://dartbug.com/16967
-// Tests type propagation of negation.
-
-void main() {
-  new Foo().test();
-}
-
-class Foo {
-  var scale = 1;
-
-  void test() {
-    var scaleX = scale;
-    var scaleY = scale;
-    var flipX = true;
-
-    if (flipX) {
-      scaleX = -scaleX;
-    }
-
-    Expect.equals('X: -1, Y: 1', 'X: $scaleX, Y: $scaleY');
-    Expect.equals('true', '${scaleX < 0}', '$scaleX < 0');
-    Expect.equals('false', '${scaleY < 0}', '$scaleY < 0');
-  }
-}
diff --git a/tests/web_2/regress/issue/17094_test.dart b/tests/web_2/regress/issue/17094_test.dart
deleted file mode 100644
index 66fe00e1919..00000000000
--- a/tests/web_2/regress/issue/17094_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-//  Interpolation effect analysis test.
-
-get never => new DateTime.now().millisecondsSinceEpoch == 0;
-
-class A {
-  int a = 0;
-  toString() {
-    ++a;
-    return 'A';
-  }
-}
-
-// Many interpolations to make function too big to inline.
-// Summary for [fmt] must include effects from toString().
-fmt(x) => '$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x$x';
-
-test(a) {
-  if (a == null) return;
-  if (never) a.a += 1;
-  var b = a.a; // field load
-  var c = fmt(a); // field modified through implicit call to toString()
-  var d = a.a; // field re-load
-  Expect.equals('A 0 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA 30', '$a $b $c $d');
-
-  // Extra use of [fmt] to prevent inlining on basis of single reference.
-  Expect.equals('', fmt(''));
-}
-
-main() {
-  test(null);
-  test(new A());
-}
diff --git a/tests/web_2/regress/issue/17645_test.dart b/tests/web_2/regress/issue/17645_test.dart
deleted file mode 100644
index 15f7e154b58..00000000000
--- a/tests/web_2/regress/issue/17645_test.dart
+++ /dev/null
@@ -1,78 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-//  Regression test for issue 17645.
-get never => new DateTime.now().millisecondsSinceEpoch == 0;
-
-class A {
-  var foo;
-  A(this.foo);
-}
-
-var log = [];
-
-test1(a, xs) {
-  // Called with a = [null|exact=A]
-  log.clear();
-  for (var x in xs) {
-    if (a != null) {
-      log.add('${a.foo}.$x'); // a.foo must not be hoisted
-    }
-  }
-  return '$log';
-}
-
-test2(a, xs) {
-  // Called with a = [exact=A]
-  log.clear();
-  for (var x in xs) {
-    if (a != null) {
-      log.add('${a.foo}.$x'); // a.foo may be hoisted
-    }
-  }
-  return '$log';
-}
-
-test3(a, xs) {
-  // Called with a = [null|exact=A]
-  log.clear();
-  for (var x in xs) {
-    if (a is A) {
-      log.add('${a.foo}.$x'); // a.foo must not be hoisted
-    }
-  }
-  return '$log';
-}
-
-test4(a, xs) {
-  // Called with a = [exact=A]
-  log.clear();
-  for (var x in xs) {
-    if (a is A) {
-      log.add('${a.foo}.$x'); // a.foo may be hoisted
-    }
-  }
-  return '$log';
-}
-
-main() {
-  var a1 = new A('a1');
-  var a2 = new A('a2');
-
-  Expect.equals('[a1.11]', test1(a1, [11]));
-  Expect.equals('[]', test1(null, [11]));
-
-  Expect.equals('[a1.22]', test2(a1, [22]));
-  Expect.equals('[a2.22]', test2(a2, [22]));
-
-  Expect.equals('[a1.33]', test3(a1, [33]));
-  Expect.equals('[]', test3(null, [2]));
-
-  Expect.equals('[a1.44]', test4(a1, [44]));
-  Expect.equals('[a2.44]', test4(a2, [44]));
-}
diff --git a/tests/web_2/regress/issue/17856_test.dart b/tests/web_2/regress/issue/17856_test.dart
deleted file mode 100644
index 4b0f5523ab6..00000000000
--- a/tests/web_2/regress/issue/17856_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-// Regression test for Issue 17856.
-
-void main() {
-  var all = {"a": new A(), "b": new B()};
-
-  A a = all["a"];
-  a.load();
-}
-
-class A {
-  Loader _loader = new Loader();
-
-  load() => _loader.loadAll({'a1': {}});
-}
-
-class B {
-  Loader _loader = new Loader();
-
-  load() => _loader.loadAll({
-        'a2': new DateTime.now(),
-      });
-}
-
-class Loader {
-  loadAll(Map assets) {
-    for (String key in assets.keys) {
-      Expect.isTrue(assets[key] is Map);
-    }
-  }
-}
diff --git a/tests/web_2/regress/issue/183227419_test.dart b/tests/web_2/regress/issue/183227419_test.dart
deleted file mode 100644
index 2d94ec8331a..00000000000
--- a/tests/web_2/regress/issue/183227419_test.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart=2.10
-
-// Regression test for variable allocator live range bug.
-//
-// Pre-fix, this program would crash because t2 was reused before it was dead.
-//
-//     algo$1: function(n) {
-//       var t1 = this.ax,
-//         t2 = t1 == null;
-//       if ((t2 ? null : t1.a) == null)
-//         return;
-//       t2 = n + 1;  // the old value of t2 is used below!
-//       (t2 ? null : t1.a).parameters.addAll$2(0, t2, t2);
-//     }
-//
-// Several things were necessary to tickle the bug:
-//
-//  [A] The repeated test that gets shared from the two null-aware `ax?.a`
-//      expressions.
-//  [B] A null-aware `parameters?.` that is optimized away because `parameters`
-//      is always non-null.
-//  [C] A repeated expression after the optimized null-aware access.
-
-class Thing {
-  @pragma('dart2js:noInline')
-  void addAll(x, y) {}
-}
-
-class A {
-  Thing parameters = Thing();
-}
-
-class AX {
-  A a;
-  AX(this.a);
-}
-
-class Host {
-  AX ax;
-  Host(this.ax);
-
-  algo(int n) {
-    if (ax?.a == null) return;
-    ax?.a.parameters?.addAll(n + 1, n + 1);
-  }
-}
-
-main() {
-  Host(null).algo(1);
-  Host(AX(A())).algo(2);
-  Host(AX(null)).algo(3);
-}
diff --git a/tests/web_2/regress/issue/18383_test.dart b/tests/web_2/regress/issue/18383_test.dart
deleted file mode 100644
index a059dc4bc1f..00000000000
--- a/tests/web_2/regress/issue/18383_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for http://dartbug.com/18383
-
-import "package:expect/expect.dart";
-
-class F {
-  call() => (x) => new G(x.toInt());
-}
-
-class G {
-  var z;
-  G(this.z);
-  foo() => '$this.foo';
-  toString() => 'G($z)';
-}
-
-main() {
-  var f = new F();
-  var m = f();
-  Expect.equals(m(66).foo(), "G(66).foo");
-}
diff --git a/tests/web_2/regress/issue/19191_test.dart b/tests/web_2/regress/issue/19191_test.dart
deleted file mode 100644
index f986781487e..00000000000
--- a/tests/web_2/regress/issue/19191_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for http://dartbug.com/19191
-
-class A {
-  var method;
-
-  noSuchMethod(Invocation invocation) {
-    if (invocation.isGetter) {
-      return method;
-    } else if (invocation.isSetter) {
-      method = invocation.positionalArguments[0];
-      return null;
-    } else if (invocation.isMethod) {
-      return Function.apply(
-          method, invocation.positionalArguments, invocation.namedArguments);
-    } else {
-      throw new NoSuchMethodError(this, invocation.memberName,
-          invocation.positionalArguments, invocation.namedArguments);
-    }
-  }
-}
-
-void main() {
-  dynamic a = new A();
-  a.closure_fails = (String str) {
-    return str.toUpperCase();
-  };
-  print(a.closure_fails("Hello World"));
-}
diff --git a/tests/web_2/regress/issue/21351_test.dart b/tests/web_2/regress/issue/21351_test.dart
deleted file mode 100644
index e9538b6c382..00000000000
--- a/tests/web_2/regress/issue/21351_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-class A {
-  bool _flag = false;
-  bool get flag => _flag;
-}
-
-main() {
-  var value1, value2;
-  var count = 0;
-
-  for (var x = 0; x < 10; x++) {
-    var otherThing = new A();
-    for (var dummy = 0; dummy < x; dummy++) {
-      otherThing._flag = !otherThing._flag;
-    }
-
-    value1 = value2;
-    value2 = otherThing;
-
-    if (value1 == null) continue;
-
-    if (value1.flag) count++;
-  }
-
-  if (count == 0) throw "FAIL";
-}
diff --git a/tests/web_2/regress/issue/21579_test.dart b/tests/web_2/regress/issue/21579_test.dart
deleted file mode 100644
index 13869b7ac08..00000000000
--- a/tests/web_2/regress/issue/21579_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for http://dartbug.com/21579
-//
-// Fails for --trust-type-annotations:
-//
-// test.py -mrelease -cdart2js -rd8 --dart2js-options='--trust-type-annotations' dart2js_extra/21579_test
-
-import 'package:expect/expect.dart';
-
-main() {
-  var a = new List.generate(100, (i) => i);
-  a.sort((a, b) => 10000000000000 * a.compareTo(b));
-  Expect.equals(0, a.first);
-  Expect.equals(99, a.last);
-}
diff --git a/tests/web_2/regress/issue/22487_test.dart b/tests/web_2/regress/issue/22487_test.dart
deleted file mode 100644
index 8e600155a07..00000000000
--- a/tests/web_2/regress/issue/22487_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for http://dartbug.com/22487
-
-import 'package:expect/expect.dart';
-
-divIsInt(a, b) => (a / b) is int;
-
-main() {
-  Expect.isFalse((divIsInt)(10, 3));
-}
diff --git a/tests/web_2/regress/issue/22776_test.dart b/tests/web_2/regress/issue/22776_test.dart
deleted file mode 100644
index 62d7f8accbc..00000000000
--- a/tests/web_2/regress/issue/22776_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for http://dartbug.com/22776
-
-import "package:expect/expect.dart";
-
-class A {}
-
-main() {
-  try {
-    print(id(new Duration(milliseconds: 10)));
-    print(id(3) ~/ new A());
-  } catch (e) {
-    print("Error '$e' ${e.runtimeType}");
-  }
-}
-
-@pragma('dart2js:assumeDynamic')
-@pragma('dart2js:noInline')
-id(x) => x;
diff --git a/tests/web_2/regress/issue/22868_test.dart b/tests/web_2/regress/issue/22868_test.dart
deleted file mode 100644
index 62b48374e60..00000000000
--- a/tests/web_2/regress/issue/22868_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for http://dartbug.com/22868 and http://dartbug.com/22895
-// Ensure that the closure tracer properly handles await.
-
-main() async {
-  var closures = [(x, y) => x + y];
-  print(((await closures)[0])(4, 2));
-}
diff --git a/tests/web_2/regress/issue/22917_test.dart b/tests/web_2/regress/issue/22917_test.dart
deleted file mode 100644
index 061909548c9..00000000000
--- a/tests/web_2/regress/issue/22917_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for http://dartbug.com/22917
-
-import 'package:expect/expect.dart';
-
-m(x) => print('x: $x');
-
-test() => Function.apply(m, []);
-
-main() {
-  Expect.throws(test);
-}
diff --git a/tests/web_2/regress/issue/23404_test.dart b/tests/web_2/regress/issue/23404_test.dart
deleted file mode 100644
index a3080c12aa5..00000000000
--- a/tests/web_2/regress/issue/23404_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for http://dartbug.com/23404
-//
-// Dart2js crashed when the global metadata had escaped characters. That
-// happens, for example, when tearing off a function that uses a default
-// argument containing escape characters.
-import 'package:expect/expect.dart';
-
-foo([a = '\u00a0']) => a;
-bar() => '';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-main() {
-  Expect.equals('\u00a0', confuse(foo)());
-  Expect.equals('', confuse(bar)());
-}
diff --git a/tests/web_2/regress/issue/23432_test.dart b/tests/web_2/regress/issue/23432_test.dart
deleted file mode 100644
index e8bdff63028..00000000000
--- a/tests/web_2/regress/issue/23432_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for http://dartbug.com/23432.  Test that the receiver of a
-// NoSuchMethodError is correct on an intercepted method.  The bug (issue 23432)
-// is that the interceptor is captured instead of the receiver.
-
-import 'package:expect/expect.dart';
-
-class N {
-  noSuchMethod(i) {
-    print('x');
-    return 42;
-  }
-}
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-get NEVER => false;
-
-main() {
-  dynamic c = 12345;
-  if (NEVER) c = new N();
-  var e;
-  try {
-    c
-      ..toString()
-      ..add(88);
-  } catch (ex) {
-    e = ex;
-  }
-  var s = e.toString();
-  Expect.isTrue(s.contains('$c'), 'Text "$s" should contain "$c"');
-}
diff --git a/tests/web_2/regress/issue/23486_helper.dart b/tests/web_2/regress/issue/23486_helper.dart
deleted file mode 100644
index 7822865f72c..00000000000
--- a/tests/web_2/regress/issue/23486_helper.dart
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-int x = 1;
diff --git a/tests/web_2/regress/issue/23486_test.dart b/tests/web_2/regress/issue/23486_test.dart
deleted file mode 100644
index cff32df31f9..00000000000
--- a/tests/web_2/regress/issue/23486_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for http://dartbug.com/23486
-//
-// Dart2js used to crash when using `super` and prefixes inside parenthesized
-// expressions.
-import 'package:expect/expect.dart';
-
-import '23486_helper.dart' as p;
-
-class B {
-  var field = 1;
-}
-
-class A extends B {
-  m() {
-    (super).field = 1; //# 01: compile-time error
-  }
-}
-
-class C {
-  C();
-  C.name();
-}
-
-class D extends C {
-  D() : super();
-  D.name() : (super).name(); //# 02: compile-time error
-}
-
-main() {
-  Expect.throws(new A().m); //       //# 01: continued
-  Expect.throws(() => new D.name()); //# 02: continued
-  Expect.throws(() => (p).x); //     //# 03: compile-time error
-}
diff --git a/tests/web_2/regress/issue/23804_test.dart b/tests/web_2/regress/issue/23804_test.dart
deleted file mode 100644
index 843af23feb5..00000000000
--- a/tests/web_2/regress/issue/23804_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for http://dartbug.com/23804
-//
-// Inference incorrectly assumed that `any` and `every` didn't escape the values
-// in the collections.
-
-import 'package:expect/expect.dart';
-
-test(n) => n == 1;
-bool run(f(dynamic)) => f(1);
-main() {
-  Expect.equals([test].any(run), true);
-}
diff --git a/tests/web_2/regress/issue/23828_test.dart b/tests/web_2/regress/issue/23828_test.dart
deleted file mode 100644
index eb5f0c2518e..00000000000
--- a/tests/web_2/regress/issue/23828_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for http://dartbug.com/23828
-// Used to fail when methods contain a name starting with `get`
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-class MA {
-  noSuchMethod(i) => Expect.equals(i.positionalArguments.length, 1);
-}
-
-main() {
-  confuse(new MA()).getFoo('a');
-}
diff --git a/tests/web_2/regress/issue/26243_test.dart b/tests/web_2/regress/issue/26243_test.dart
deleted file mode 100644
index d637c03bf27..00000000000
--- a/tests/web_2/regress/issue/26243_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-var trace = [];
-void write(String s, int a, int b) {
-  trace.add("$s $a $b");
-}
-
-void foo() {
-  var i = 0;
-  write("foo", i, i += 1);
-}
-
-void bar() {
-  var i = 0;
-  try {
-    write("bar", i, i += 1);
-  } catch (_) {}
-}
-
-void baz() {
-  var i = 0;
-  write("baz-notry", i, i += 1);
-
-  i = 0;
-  try {
-    write("baz-try", i, i += 1);
-  } catch (_) {}
-}
-
-void main() {
-  foo();
-  bar();
-  baz();
-  Expect.listEquals(
-      ['foo 0 1', 'bar 0 1', 'baz-notry 0 1', 'baz-try 0 1'], trace);
-}
diff --git a/tests/web_2/regress/issue/27198_test.dart b/tests/web_2/regress/issue/27198_test.dart
deleted file mode 100644
index bab3d07ca77..00000000000
--- a/tests/web_2/regress/issue/27198_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// From co19/Language/Types/Parameterized_Types/Actual_Type_of_Declaration/actual_type_t05.dart
-import "package:expect/expect.dart";
-
-class C<T> {
-  List<T> f() => [];
-}
-
-main() {
-  C c = new C();
-  Expect.isTrue(c.f() is List<dynamic>);
-}
diff --git a/tests/web_2/regress/issue/27199_test.dart b/tests/web_2/regress/issue/27199_test.dart
deleted file mode 100644
index 8ac518d9539..00000000000
--- a/tests/web_2/regress/issue/27199_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for http://dartbug.com/27199 in --checked mode.
-
-// Typedefs must be unaliased at some point before codegen to have the correct
-// number of references.  The unaliased type of ItemListFilter<T> has two
-// references to T: (Iterable<T>) -> Iterable<T>.
-
-import 'package:expect/expect.dart';
-
-typedef Iterable<T> ItemListFilter<T>(Iterable<T> items);
-
-class C<T> {
-  Map<String, ItemListFilter<T>> f = {};
-}
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-main() {
-  dynamic c = new C();
-  dynamic a = 12;
-  if (confuse(true)) a = <String, ItemListFilter>{};
-  c.f = a;
-}
diff --git a/tests/web_2/regress/issue/27323_test.dart b/tests/web_2/regress/issue/27323_test.dart
deleted file mode 100644
index 7186e291aa2..00000000000
--- a/tests/web_2/regress/issue/27323_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-class C {
-  noSuchMethod(i) => i.typeArguments;
-}
-
-class D {
-  foo<U, V>() => [U, V];
-}
-
-@pragma('dart2js:noInline')
-test(dynamic x) {
-  dynamic typeArguments = x.foo<int, String>();
-  Expect.equals(int, typeArguments[0]);
-  Expect.equals(String, typeArguments[1]);
-}
-
-main() {
-  test(new C());
-  test(new D()); //# 01: ok
-}
diff --git a/tests/web_2/regress/issue/27354_test.dart b/tests/web_2/regress/issue/27354_test.dart
deleted file mode 100644
index c64a621799b..00000000000
--- a/tests/web_2/regress/issue/27354_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for Issue 27354.
-
-int total = 1;
-void inc() => total++ < 10 ? null : throw "do not loop forever!";
-
-void main() {
-  // Problem was moving the load of 'total' inside the loop.
-  int count = null ?? total;
-  for (int i = 0; i < count; i++) inc();
-}
diff --git a/tests/web_2/regress/issue/28749_test.dart b/tests/web_2/regress/issue/28749_test.dart
deleted file mode 100644
index 8b151d88210..00000000000
--- a/tests/web_2/regress/issue/28749_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-// Regression test for http://dartbug.com/28749.
-//
-// This would crash at compile time because inner typedefs remain after calling
-// [type.unalias].  Expanding the typedef causes the inputs to be used multiple
-// types, breaking the invariant of HTypeInfoExpression that the type variable
-// occurrences correspond to inputs.
-
-import 'package:expect/expect.dart';
-
-typedef void F<T>(T value);
-typedef F<U> Converter<U>(F<U> function);
-typedef Converter<V> ConvertFactory<V>(int input);
-
-class B<W> {
-  final field = new Wrap<ConvertFactory<W>>();
-  @pragma('dart2js:noInline')
-  B();
-}
-
-class Wrap<X> {
-  @pragma('dart2js:noInline')
-  Wrap();
-}
-
-foo<Y>(int x) {
-  if (x == 0)
-    return new Wrap<ConvertFactory<Y>>().runtimeType;
-  else
-    return new B<Y>().field.runtimeType;
-}
-
-void main() {
-  var name = '${Wrap}';
-  if ('$Object' != 'Object') return; // minified
-
-  Expect.equals(
-    'Wrap<(int) => ((int) => void) => (int) => void>',
-    '${new B<int>().field.runtimeType}',
-  );
-  Expect.equals(
-    'Wrap<(int) => ((bool) => void) => (bool) => void>',
-    '${new B<bool>().field.runtimeType}',
-  );
-
-  Expect.equals(
-    'Wrap<(int) => ((int) => void) => (int) => void>',
-    '${foo<int>(0)}',
-  );
-  Expect.equals(
-    'Wrap<(int) => ((String) => void) => (String) => void>',
-    '${foo<String>(1)}',
-  );
-}
diff --git a/tests/web_2/regress/issue/28919_test.dart b/tests/web_2/regress/issue/28919_test.dart
deleted file mode 100644
index e95f9967299..00000000000
--- a/tests/web_2/regress/issue/28919_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for http://dartbug.com/28919.
-//
-// This would crash at runtime because the type of closure parameter 'x' was
-// empty, leading to bad codegen. The empty type was due to a tracing bug that
-// failed to escape the closure when stored into the list which was not traced
-// as a container.
-
-import 'package:expect/expect.dart';
-
-int foo([List _methods = const []]) {
-  final methods = new List.from(_methods);
-  for (int i = 0; i < 3; i++) {
-    methods.add((int x) => x + i);
-  }
-  return methods[0](499);
-}
-
-main() {
-  Expect.equals(499, foo());
-}
diff --git a/tests/web_2/regress/issue/29130_test.dart b/tests/web_2/regress/issue/29130_test.dart
deleted file mode 100644
index 76f91c73478..00000000000
--- a/tests/web_2/regress/issue/29130_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-/// This is a regression test from issue #29310. The global type-inferrer does
-/// tracing of closures including allocated classes that implement a `call`
-/// method. We incorrectly considered also classes with invoked factory
-/// constructors, even if those were only abstract interfaces or mixins that
-/// weren't actually allocated explicitly.
-library regression_29130;
-
-main() {
-  new B();
-  new C();
-}
-
-class A {
-  call() {}
-}
-
-// interface scenario: we shouldn't trace B
-abstract class B implements A {
-  factory B() => null;
-}
-
-// mixin scenario: we should trace C, but we should trace _C
-abstract class C implements A {
-  factory C() => new D();
-}
-
-class D = A with C;
diff --git a/tests/web_2/regress/issue/2913_test.dart b/tests/web_2/regress/issue/2913_test.dart
deleted file mode 100644
index 51a990228f3..00000000000
--- a/tests/web_2/regress/issue/2913_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-main() {
-  var a = 10;
-  var b = 11;
-
-  for (var i = 0; i < 1; i++) {
-    print('--------');
-    print('a $a');
-    print('b $b');
-    var t = 1;
-    if (i < 20) {
-      t = 2;
-    }
-
-    b = a;
-    a = t;
-  }
-  Expect.equals(2, a);
-  Expect.equals(10, b);
-}
diff --git a/tests/web_2/regress/issue/31803_test.dart b/tests/web_2/regress/issue/31803_test.dart
deleted file mode 100644
index 88403e35505..00000000000
--- a/tests/web_2/regress/issue/31803_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-// Tests that the compiler doesn't crash on an annotation with fields
-
-class Annotation {
-  final Object obj;
-  const Annotation(this.obj);
-}
-
-class UnusedClass {
-  final Object x;
-
-  const factory UnusedClass(UnusedArgumentClass x) = UnusedClass._;
-
-  const UnusedClass._(this.x);
-}
-
-class UnusedArgumentClass {
-  const UnusedArgumentClass();
-}
-
-@Annotation(const UnusedClass(arg))
-class A {}
-
-const arg = const UnusedArgumentClass();
-
-main() {
-  var a = new A();
-  Expect.isTrue(a != null);
-}
diff --git a/tests/web_2/regress/issue/32069_test.dart b/tests/web_2/regress/issue/32069_test.dart
deleted file mode 100644
index 05499c8d8b5..00000000000
--- a/tests/web_2/regress/issue/32069_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-main() {
-  var m1 = {
-    'hello': <String>['hi', 'howdy'],
-    'bye': <String>[]
-  };
-  var m = new Map<String, List<String>>.unmodifiable(m1);
-  print(m);
-  Expect.isTrue(m is Map<String, List<String>>);
-  Expect.isFalse(m is Map<List<String>, String>);
-}
diff --git a/tests/web_2/regress/issue/32770a_test.dart b/tests/web_2/regress/issue/32770a_test.dart
deleted file mode 100644
index adc3bd63a60..00000000000
--- a/tests/web_2/regress/issue/32770a_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-// Regression test for issue 32770.
-
-import 'package:expect/expect.dart';
-
-dynamic f;
-dynamic g;
-
-class A {}
-
-class B extends A {}
-
-class C extends A {}
-
-class Class<T> {
-  void Function(E) method<E, F extends E>(void Function(F) callback) {
-    return (E event) {
-      g = () => callback(event as F);
-    };
-  }
-}
-
-main() {
-  f = new Class<String>().method<A, B>((o) => print(o));
-  f(new B());
-  g();
-  f(new C());
-  Expect.throws(() => g(), (_) => true);
-}
diff --git a/tests/web_2/regress/issue/32770b_test.dart b/tests/web_2/regress/issue/32770b_test.dart
deleted file mode 100644
index beac84287c3..00000000000
--- a/tests/web_2/regress/issue/32770b_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-// Regression test for issue 32770.
-
-import 'package:expect/expect.dart';
-
-dynamic f;
-dynamic g;
-
-class A {}
-
-class B extends A {}
-
-class C extends A {}
-
-class Class<T> {
-  void Function(E) method<E, F extends E>(bool Function(bool) callback) {
-    return (E event) {
-      g = () => callback(event is F);
-    };
-  }
-}
-
-main() {
-  f = new Class<String>().method<A, B>((o) => o);
-  f(new B());
-  Expect.isTrue(g());
-  f(new C());
-  Expect.isFalse(g());
-}
diff --git a/tests/web_2/regress/issue/32770c_test.dart b/tests/web_2/regress/issue/32770c_test.dart
deleted file mode 100644
index fefd82b9b5d..00000000000
--- a/tests/web_2/regress/issue/32770c_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-// Regression test for issue 32770.
-
-import 'dart:async' show Future;
-
-A<J> futureToA<T, J>(Future<T> future, [J wrapValue(T value)]) {
-  return new A<J>(
-    (void resolveFn(J value), void rejectFn(error)) {
-      future.then((value) {
-        dynamic wrapped;
-        if (wrapValue != null) {
-          wrapped = wrapValue(value);
-        } else if (value != null) {
-          wrapped = value;
-        }
-        resolveFn(wrapped);
-      }).catchError((error) {
-        rejectFn(error);
-      });
-    },
-  );
-}
-
-class A<X> {
-  var x;
-
-  A(this.x);
-}
-
-main() {
-  print(futureToA);
-}
diff --git a/tests/web_2/regress/issue/32774_test.dart b/tests/web_2/regress/issue/32774_test.dart
deleted file mode 100644
index a117d86178b..00000000000
--- a/tests/web_2/regress/issue/32774_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-T id<T>(T t) => t;
-
-class C<T> {
-  final T t;
-  final T Function(T) f;
-
-  const C(this.t, this.f);
-}
-
-class D<T> {
-  final T t;
-  final T Function(T) f;
-
-  const D(this.t, this.f);
-}
-
-const C<int> c1a = const C<int>(0, id);
-const C<int> c1b = const C<int>(0, id);
-
-const C<double> c2a = const C<double>(0.5, id);
-const C<double> c2b = const C<double>(0.5, id);
-
-const D<int> d = const D<int>(0, id);
-
-main() {
-  Expect.equals(c1a, c1b);
-  Expect.isTrue(identical(c1a, c1b));
-  Expect.equals(c1a.f, c1b.f);
-
-  Expect.equals(c2a, c2b);
-  Expect.isTrue(identical(c2a, c2b));
-  Expect.equals(c2a.f, c2b.f);
-
-  Expect.notEquals(c1a, c2a);
-  Expect.notEquals(c1a.f, c2a.f);
-
-  Expect.notEquals(c1a, d);
-  Expect.isTrue(identical(c1a.f, d.f));
-}
diff --git a/tests/web_2/regress/issue/32828_test.dart b/tests/web_2/regress/issue/32828_test.dart
deleted file mode 100644
index 7e0b22bbcef..00000000000
--- a/tests/web_2/regress/issue/32828_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-class A {
-  void m2<T>(void Function(T) f, [a]) {}
-}
-
-main() => new A().m2<String>(null);
diff --git a/tests/web_2/regress/issue/32853_test.dart b/tests/web_2/regress/issue/32853_test.dart
deleted file mode 100644
index 80819b345b7..00000000000
--- a/tests/web_2/regress/issue/32853_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-// Regression test for issue 32853.
-
-int foo<T extends Comparable<T>>(T a, T b) => a.compareTo(b);
-
-main() {
-  int Function<T extends Comparable<T>>(T, T) f = foo;
-  print(f<num>(1, 2));
-}
diff --git a/tests/web_2/regress/issue/32928_test.dart b/tests/web_2/regress/issue/32928_test.dart
deleted file mode 100644
index ef392df6997..00000000000
--- a/tests/web_2/regress/issue/32928_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-/// Regression test for issue 32928.
-
-abstract class A<T> {
-  set f(T value) {
-    print(value);
-  }
-}
-
-abstract class B extends A {}
-
-class C extends B {
-  m(value) => super.f = value;
-}
-
-main() {
-  new C().m(null);
-}
diff --git a/tests/web_2/regress/issue/32969_test.dart b/tests/web_2/regress/issue/32969_test.dart
deleted file mode 100644
index 8f1e89210b2..00000000000
--- a/tests/web_2/regress/issue/32969_test.dart
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-@JS()
-library foo;
-
-import 'package:expect/expect.dart';
-import 'package:js/js.dart';
-
-@JS()
-@anonymous
-class A<T> {
-  external factory A();
-}
-
-class B<T> {}
-
-@JS()
-@anonymous
-class C implements B<int> {
-  external factory C();
-}
-
-class D<T> {}
-
-@JS()
-@anonymous
-class E implements B<String> {
-  external factory E();
-}
-
-main() {
-  test(new A<int>());
-  test(new A<String>());
-  test(new C());
-  test(new E());
-}
-
-test(o) {
-  Expect.isTrue(o is A<int>, "Expected $o to be A<int>");
-  Expect.isTrue(o is A<String>, "Expected $o to be A<String>");
-
-  Expect.isTrue(o is B<int>, "Expected $o to be B<int>");
-  Expect.isTrue(o is B<String>, "Expected $o to be B<String>");
-
-  Expect.isFalse(o is D<int>, "Expected $o not to be D<int>");
-}
diff --git a/tests/web_2/regress/issue/32997a_lib.dart b/tests/web_2/regress/issue/32997a_lib.dart
deleted file mode 100644
index 5c7566dc6b0..00000000000
--- a/tests/web_2/regress/issue/32997a_lib.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-T getFoo<T>(T v) => v;
-
-typedef dynamic G<T>(T v);
-
-m(int x, {G<int> f: getFoo}) {
-  print(f(x));
-}
diff --git a/tests/web_2/regress/issue/32997a_test.dart b/tests/web_2/regress/issue/32997a_test.dart
deleted file mode 100644
index 6a0ec975f18..00000000000
--- a/tests/web_2/regress/issue/32997a_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import '32997a_lib.dart' deferred as b;
-
-main() async {
-  await b.loadLibrary();
-  print(b.m(3));
-}
diff --git a/tests/web_2/regress/issue/32997b_lib.dart b/tests/web_2/regress/issue/32997b_lib.dart
deleted file mode 100644
index 4d532d0e237..00000000000
--- a/tests/web_2/regress/issue/32997b_lib.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-T getFoo<T>(T v) => v;
-
-typedef dynamic G<T>(T v);
-
-m<T>(T x, {G<T> f: getFoo}) {
-  print(f);
-}
diff --git a/tests/web_2/regress/issue/32997b_test.dart b/tests/web_2/regress/issue/32997b_test.dart
deleted file mode 100644
index 30419329027..00000000000
--- a/tests/web_2/regress/issue/32997b_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import '32997b_lib.dart' deferred as b; //# 01: compile-time error
-
-main() async {
-  await b.loadLibrary(); //# 01: continued
-  print(b.m<int>(3)); //# 01: continued
-}
diff --git a/tests/web_2/regress/issue/33296_test.dart b/tests/web_2/regress/issue/33296_test.dart
deleted file mode 100644
index 0b8e814c376..00000000000
--- a/tests/web_2/regress/issue/33296_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'dart:js';
-import 'dart:html'; // TODO(33316): Remove.
-import "package:expect/expect.dart";
-
-main() {
-  var f = () => [];
-  Expect.isTrue(f is List Function());
-  Expect.isFalse(f is int Function(int));
-
-  var g = allowInterop(f);
-  // g is inferred to have the same type as f.
-  Expect.isTrue(g is List Function());
-  // The JavaScriptFunction matches any function type.
-  Expect.isTrue(g is int Function(int));
-
-  if (false) new DivElement(); // TODO(33316): Remove.
-}
diff --git a/tests/web_2/regress/issue/33572_test.dart b/tests/web_2/regress/issue/33572_test.dart
deleted file mode 100644
index 4ae5b513aa5..00000000000
--- a/tests/web_2/regress/issue/33572_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for issue 32853.
-
-import "package:expect/expect.dart";
-
-class A {
-  final x = null;
-  final y;
-  const A(this.y);
-}
-
-main() {
-  var a1 = new A(1);
-  var a2 = const A(2);
-  test(a1, null, 1);
-  test(a2, null, 2);
-}
-
-@pragma('dart2js:noInline')
-test(a, expectedX, expectedY) {
-  Expect.equals(expectedX, a.x);
-  Expect.equals(expectedY, a.y);
-}
diff --git a/tests/web_2/regress/issue/33_test.dart b/tests/web_2/regress/issue/33_test.dart
deleted file mode 100644
index 286ff35aaea..00000000000
--- a/tests/web_2/regress/issue/33_test.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-void main() {
-  print(3 + 4 * 10 - 8 / 2 - 19 ~/ 3);
-}
diff --git a/tests/web_2/regress/issue/34156_test.dart b/tests/web_2/regress/issue/34156_test.dart
deleted file mode 100644
index 2d216aa0839..00000000000
--- a/tests/web_2/regress/issue/34156_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:tryInline')
-// This function should not be inlined. Multiple returns and try-catch cannot
-// currently be inlined correctly.
-method() {
-  try {
-    thrower();
-    return 'x';
-  } catch (e) {
-    print(e);
-    return 'y';
-  }
-  return 'z';
-}
-
-thrower() {
-  if (g) throw 123;
-}
-
-var g;
-main() {
-  g = false;
-  var x1 = method();
-  Expect.equals('x', x1);
-
-  g = true;
-  var x2 = method();
-  Expect.equals('y', x2);
-}
diff --git a/tests/web_2/regress/issue/34701_test.dart b/tests/web_2/regress/issue/34701_test.dart
deleted file mode 100644
index 10f83ee1dfa..00000000000
--- a/tests/web_2/regress/issue/34701_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--omit-implicit-checks
-
-/// Regression test for issue 34701.
-
-import 'dart:async';
-import 'package:expect/expect.dart';
-
-class A {
-  @pragma('dart2js:noInline') //# 01: ok
-  Future<T> _foo<T>(FutureOr<T> Function() f) async {
-    return await f();
-  }
-
-  @pragma('dart2js:noInline') //# 01: continued
-  Future<String> get m async => _foo(() => "a");
-}
-
-class M {}
-
-class B extends A with M {
-  @pragma('dart2js:noInline') //# 01: continued
-  Future<T> _foo<T>(FutureOr<T> Function() f) => super._foo(f);
-}
-
-main() async {
-  var b = new B();
-  print(b.m.runtimeType);
-  print((await b.m).runtimeType);
-  Expect.isTrue(b.m is Future<String>);
-  Expect.isTrue((await b.m) is String);
-}
diff --git a/tests/web_2/regress/issue/35341_test.dart b/tests/web_2/regress/issue/35341_test.dart
deleted file mode 100644
index ce527afe2b1..00000000000
--- a/tests/web_2/regress/issue/35341_test.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for issue 35341.
-
-import "dart:async";
-
-@pragma('dart2js:disableFinal')
-void main() {
-  FutureOr<int> i = new Future<int>.value(0);
-  print(i.runtimeType);
-}
diff --git a/tests/web_2/regress/issue/35356_test.dart b/tests/web_2/regress/issue/35356_test.dart
deleted file mode 100644
index a6b768be9c0..00000000000
--- a/tests/web_2/regress/issue/35356_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-main() {
-  bool b = true & true;
-  b |= true;
-  b = b ^ b;
-  print(b);
-}
diff --git a/tests/web_2/regress/issue/35853_test.dart b/tests/web_2/regress/issue/35853_test.dart
deleted file mode 100644
index e3cebb60fef..00000000000
--- a/tests/web_2/regress/issue/35853_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-typedef F1 = int Function(int);
-typedef F2 = int Function(int);
-typedef F3 = int Function(double);
-
-@pragma('dart2js:noInline')
-id(x) => x;
-
-main() {
-  var f1 = F1;
-  var f2 = F2;
-  var f3 = F3;
-  Expect.isTrue(f1 == f2);
-  var result12 = identical(f1, f2);
-  Expect.isFalse(f1 == f3);
-  Expect.isFalse(identical(f1, f3));
-  Expect.isFalse(f2 == f3);
-  Expect.isFalse(identical(f2, f3));
-
-  var g1 = id(F1);
-  var g2 = id(F2);
-  var g3 = id(F3);
-  Expect.isTrue(g1 == g2);
-  Expect.equals(result12, identical(g1, g2));
-  Expect.isFalse(g1 == g3);
-  Expect.isFalse(identical(g1, g3));
-  Expect.isFalse(g2 == g3);
-  Expect.isFalse(identical(g2, g3));
-}
diff --git a/tests/web_2/regress/issue/35965a_test.dart b/tests/web_2/regress/issue/35965a_test.dart
deleted file mode 100644
index 332aa20049a..00000000000
--- a/tests/web_2/regress/issue/35965a_test.dart
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for issue 35965.
-//
-// The combination of generator bodies on mixin methods with super-calls caused
-// various kinds of broken generated JavaScript.
-//
-//  - The generator body name had unescaped '&' symbols from the Kernel
-//    synthesized super-mixin-application class.
-//  - The super-mixin-application class was missing the generator body because
-//    it did not expect injected members.
-
-import 'dart:async';
-
-abstract class II {
-  bar();
-}
-
-mixin M on II {
-  // The parameter type check causes the generator to have a body.
-  //
-  // The super call causes the body to be on the super mixin application.
-  //
-  // The super call causes the body to have a name depending on the super mixin
-  // application name.
-  Future<T> foo<T>(T a) async {
-    super.bar();
-    return a;
-  }
-
-  // The parameter type check causes the generator to have a body.
-  //
-  // The super call causes 'fred' to be on the super mixin application.
-  //
-  // The super call causes the closure's call method's generator to have a name
-  // depending on the super mixin application name.
-  fred<T>() => (T a) async {
-        super.bar();
-        return a;
-      };
-}
-
-class BB implements II {
-  bar() {
-    print('BB.bar');
-  }
-}
-
-class UU extends BB with M {}
-
-main() async {
-  print('hello');
-  var uu = UU();
-
-  print(await uu.foo<int>(1));
-  print(await uu.foo<String>("one"));
-
-  print(await uu.fred<int>()(1));
-  print(await uu.fred<String>()("uno"));
-}
diff --git a/tests/web_2/regress/issue/36222_test.dart b/tests/web_2/regress/issue/36222_test.dart
deleted file mode 100644
index 97ac586c2d1..00000000000
--- a/tests/web_2/regress/issue/36222_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-typedef int BinaryFunc(int x, int y);
-
-class A {
-  const A({this.foo = A.defaultFoo});
-
-  static int defaultFoo(int x, int y) {
-    return x + y;
-  }
-
-  final BinaryFunc foo;
-}
-
-@pragma('dart2js:assumeDynamic')
-@pragma('dart2js:noInline')
-test(dynamic a) => a.foo(1, 2);
-
-main() {
-  test(new A());
-}
diff --git a/tests/web_2/regress/issue/37494_test.dart b/tests/web_2/regress/issue/37494_test.dart
deleted file mode 100644
index a0abcebc4b0..00000000000
--- a/tests/web_2/regress/issue/37494_test.dart
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for http://dartbug.com/37494
-
-import 'dart:collection';
-import 'dart:typed_data';
-
-void main() {
-  final u8 = Uint8List(10);
-  // Uint8List.{sort,join} are ListMixin.{sort,join} which takes and explicit
-  // receiver because Uint8List is an intercepted type.
-  u8.sort();
-  print(u8.join());
-
-  final list = Example();
-  list.addAll([1, 2, 3]);
-  list.sort();
-  print(list.join());
-}
-
-class Example<T> extends ListBase<T> {
-  final _list = <T>[];
-
-  @override
-  operator [](int index) => _list[index];
-
-  @override
-  operator []=(int index, T value) {
-    _list[index] = value;
-  }
-
-  @override
-  int get length => _list.length;
-
-  @override
-  set length(int value) {
-    _list.length = value;
-  }
-
-  @override
-  String join([String separator = ""]) {
-    return super.join(separator); // This super call had bad dummy interceptor.
-  }
-
-  @override
-  @pragma('dart2js:noInline')
-  void sort([int compare(T a, T b)]) {
-    super.sort(compare); // This super call had bad dummy interceptor.
-  }
-}
diff --git a/tests/web_2/regress/issue/37576_test.dart b/tests/web_2/regress/issue/37576_test.dart
deleted file mode 100644
index 4d797e823b1..00000000000
--- a/tests/web_2/regress/issue/37576_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:js/js.dart';
-
-@JS('jsFun')
-external set jsFun(Function fun);
-
-void main() {
-  jsFun = allowInterop(dartFun);
-}
-
-void dartFun() {}
diff --git a/tests/web_2/regress/issue/38005_test.dart b/tests/web_2/regress/issue/38005_test.dart
deleted file mode 100644
index e5a4bb5ef8c..00000000000
--- a/tests/web_2/regress/issue/38005_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {}
-
-int foo<T>() {
-  switch (T) {
-    case A:
-      return 42;
-    default:
-      return -1;
-  }
-}
-
-void main() {
-  Expect.equals(42, foo<A>());
-  Expect.equals(-1, foo<int>());
-}
diff --git a/tests/web_2/regress/issue/38949_test.dart b/tests/web_2/regress/issue/38949_test.dart
deleted file mode 100644
index 814b004f6e1..00000000000
--- a/tests/web_2/regress/issue/38949_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-abstract class Foo<A, B> {
-  bool pip(o);
-}
-
-class Bar<X, Y> implements Foo<X, Y> {
-  bool pip(o) => o is Y;
-}
-
-class Baz<U, V> implements Foo<U, V> {
-  bool pip(o) => true;
-}
-
-void main() {
-  Expect.listEquals([], test(1));
-  Expect.listEquals([true, false], test(Bar<String, int>()));
-  Expect.listEquals([true, true], test(Baz<String, int>()));
-}
-
-@pragma('dart2js:noInline')
-List<bool> test(dynamic p) {
-  List<bool> result = [];
-  if (p is Foo) {
-    for (var o in [1, 'x']) {
-      result.add(p.pip(o));
-    }
-  }
-  return result;
-}
diff --git a/tests/web_2/regress/issue/3_test.dart b/tests/web_2/regress/issue/3_test.dart
deleted file mode 100644
index aad263aaf10..00000000000
--- a/tests/web_2/regress/issue/3_test.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-int main() {
-  return 3;
-}
diff --git a/tests/web_2/regress/issue/40152a_test.dart b/tests/web_2/regress/issue/40152a_test.dart
deleted file mode 100644
index 68dc8ae0d25..00000000000
--- a/tests/web_2/regress/issue/40152a_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Partial regression test for #40152.
-
-import 'package:js/js.dart';
-import 'package:expect/expect.dart';
-
-@JS()
-external dynamic eval(String s);
-
-main() {
-  // Regular JS-interop Array.
-  var a1 = eval('["hello","world"]');
-
-  // Array with $ti set to something.
-  // TODO(40175): Update this test if the access is changed.
-  var a2 = eval(r'(function(){var x =["hi","bye"]; x.$ti=[666]; return x})()');
-
-  var b1 = List.of(a1.cast<String>());
-  Expect.listEquals(['hello', 'world'], a1);
-  Expect.listEquals(['hello', 'world'], b1);
-
-  var b2 = List.of(a2.cast<String>());
-  Expect.listEquals(['hi', 'bye'], a2);
-  Expect.listEquals(['hi', 'bye'], b2);
-}
diff --git a/tests/web_2/regress/issue/40349_test.dart b/tests/web_2/regress/issue/40349_test.dart
deleted file mode 100644
index 2827ac3cbfc..00000000000
--- a/tests/web_2/regress/issue/40349_test.dart
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-/// Regression test for Issue #40349:
-///
-/// Before the fix, this code was accidentally generating a type check twice.
-/// In between the two checks, code to update `_foo` was overriding a temporary
-/// variable used by the check subexpression, which made the code for the
-/// second check invalid.
-///
-/// The second check should not have been generated, but it was emitted due to
-/// a broken invariant of the SSA generate-at-use logic.
-
-void main() {
-  // `x` which is used multiple times after inlining, so a temporary is used.
-  x.method(40);
-}
-
-dynamic x = Wrapper<int>();
-
-class A<E> {
-  int _foo = 0;
-  List<E> list = [null];
-
-  @pragma('dart2js:tryInline')
-  void internalMethod(E value) {
-    // The update and use of `_foo` requires a separate temporary which reuses
-    // the same variable given to `x` (technically `x` is no longer live).
-    _foo = (_foo + 1) & 0;
-
-    // This use of `value` accidentally contains the second check, which
-    // still refers to the temporary assuming it was `x` and not `_foo`.
-    list[_foo] = value;
-  }
-}
-
-class Wrapper<T> {
-  A<T> a = A<T>();
-
-  @pragma('dart2js:tryInline')
-  method(T t) => a.internalMethod(t);
-}
diff --git a/tests/web_2/regress/issue/40902_test.dart b/tests/web_2/regress/issue/40902_test.dart
deleted file mode 100644
index e992476d604..00000000000
--- a/tests/web_2/regress/issue/40902_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class Foo {
-  int f() => 42;
-}
-
-class Bar extends Foo {
-  void test() {
-    Expect.isFalse(super.f is int);
-  }
-}
-
-void main() {
-  Bar().test();
-}
diff --git a/tests/web_2/regress/issue/41449a_test.dart b/tests/web_2/regress/issue/41449a_test.dart
deleted file mode 100644
index 0fa945d031e..00000000000
--- a/tests/web_2/regress/issue/41449a_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// dart2jsOptions=-O0
-
-// @dart = 2.7
-
-// Regression test for passing type parameters through call-through stub.
-//
-// We use an abstract class with two implementations to avoid the optimizer
-// 'inlining' the call-through stub, so we are testing that the stub itself
-// passes through the type parameters.
-
-import 'package:expect/expect.dart';
-
-abstract class AAA {
-  dynamic get foo;
-}
-
-class B1 implements AAA {
-  final dynamic foo;
-  B1(this.foo);
-}
-
-class B2 implements AAA {
-  final dynamic _arr;
-  B2(foo) : _arr = [foo];
-  dynamic get foo => _arr.first;
-}
-
-class B3 implements AAA {
-  final dynamic __foo;
-  B3(this.__foo);
-  dynamic get _foo => __foo;
-  dynamic get foo => _foo;
-}
-
-@pragma('dart2js:noInline')
-test1<T>(AAA a, String expected) {
-  // call-through getter 'foo' with one type argument.
-  Expect.equals(expected, a.foo<T>());
-}
-
-@pragma('dart2js:noInline')
-test2<U, V>(AAA a, String expected) {
-  // call-through getter 'foo' with two type arguments.
-  Expect.equals(expected, a.foo<U, V>());
-}
-
-main() {
-  test1<int>(B1(<P>() => '$P'), 'int');
-  test1<num>(B2(<Q>() => '$Q'), 'num');
-  test1<double>(B3(<R>() => '$R'), 'double');
-
-  test2<int, num>(B1(<A, B>() => '$A $B'), 'int num');
-  test2<num, int>(B2(<X, Y>() => '$X $Y'), 'num int');
-  test2<double, String>(B3(<C, D>() => '$C $D'), 'double String');
-}
diff --git a/tests/web_2/regress/issue/41449b_test.dart b/tests/web_2/regress/issue/41449b_test.dart
deleted file mode 100644
index 07e65f3d43f..00000000000
--- a/tests/web_2/regress/issue/41449b_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// This test is the same as 41449a_test.dart without forcing `-O0`.
-//
-// Regression test for passing type parameters through call-through stub.
-//
-// We use an abstract class with two implementations to avoid the optimizer
-// 'inlining' the call-through stub, so we are testing that the stub itself
-// passes through the type parameters.
-
-import 'package:expect/expect.dart';
-
-abstract class AAA {
-  dynamic get foo;
-}
-
-class B1 implements AAA {
-  final dynamic foo;
-  B1(this.foo);
-}
-
-class B2 implements AAA {
-  final dynamic _arr;
-  B2(foo) : _arr = [foo];
-  dynamic get foo => _arr.first;
-}
-
-class B3 implements AAA {
-  final dynamic __foo;
-  B3(this.__foo);
-  dynamic get _foo => __foo;
-  dynamic get foo => _foo;
-}
-
-@pragma('dart2js:noInline')
-test1<T>(AAA a, String expected) {
-  // call-through getter 'foo' with one type argument.
-  Expect.equals(expected, a.foo<T>());
-}
-
-@pragma('dart2js:noInline')
-test2<U, V>(AAA a, String expected) {
-  // call-through getter 'foo' with two type arguments.
-  Expect.equals(expected, a.foo<U, V>());
-}
-
-main() {
-  test1<int>(B1(<P>() => '$P'), 'int');
-  test1<num>(B2(<Q>() => '$Q'), 'num');
-  test1<double>(B3(<R>() => '$R'), 'double');
-
-  test2<int, num>(B1(<A, B>() => '$A $B'), 'int num');
-  test2<num, int>(B2(<X, Y>() => '$X $Y'), 'num int');
-  test2<double, String>(B3(<C, D>() => '$C $D'), 'double String');
-}
diff --git a/tests/web_2/regress/issue/41449c_test.dart b/tests/web_2/regress/issue/41449c_test.dart
deleted file mode 100644
index 3b0ee51079e..00000000000
--- a/tests/web_2/regress/issue/41449c_test.dart
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// dart2jsOptions=-O4
-
-// @dart = 2.7
-
-// Regression test for passing type parameters through call-through stub.
-//
-// We use an abstract class with two implementations to avoid the optimizer
-// 'inlining' the call-through stub, so we are testing that the stub itself
-// passes through the type parameters.
-
-import 'package:expect/expect.dart';
-
-abstract class AAA {
-  dynamic get foo;
-}
-
-class B1 implements AAA {
-  final dynamic foo;
-  B1(this.foo);
-}
-
-class B2 implements AAA {
-  final dynamic _arr;
-  B2(foo) : _arr = [foo];
-  dynamic get foo => _arr.first;
-}
-
-class B3 implements AAA {
-  final dynamic __foo;
-  B3(this.__foo);
-  dynamic get _foo => __foo;
-  dynamic get foo => _foo;
-}
-
-@pragma('dart2js:noInline')
-test1<T>(AAA a, String expected) {
-  // call-through getter 'foo' with one type argument.
-  Expect.equals(expected, a.foo<T>());
-}
-
-@pragma('dart2js:noInline')
-test2<U, V>(AAA a, String expected) {
-  // call-through getter 'foo' with two type arguments.
-  Expect.equals(expected, a.foo<U, V>());
-}
-
-main() {
-  test1<int>(B1(<P>() => '$P'), 'int');
-  test1<num>(B2(<Q>() => '$Q'), 'num');
-  test1<double>(B3(<R>() => '$R'), 'double');
-
-  test2<int, num>(B1(<A, B>() => '$A $B'), 'int num');
-  test2<num, int>(B2(<X, Y>() => '$X $Y'), 'num int');
-  test2<double, String>(B3(<C, D>() => '$C $D'), 'double String');
-}
diff --git a/tests/web_2/regress/issue/41449d_test.dart b/tests/web_2/regress/issue/41449d_test.dart
deleted file mode 100644
index b41cb19a0e7..00000000000
--- a/tests/web_2/regress/issue/41449d_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class Foo {
-  Bar get bar => const Bar();
-}
-
-class Bar {
-  const Bar();
-
-  int call<S>(void Function(S) f) => 42;
-}
-
-class NoticeMe {}
-
-void main() {
-  Expect.equals(42, Foo().bar<NoticeMe>((_) {}));
-}
diff --git a/tests/web_2/regress/issue/41781_test.dart b/tests/web_2/regress/issue/41781_test.dart
deleted file mode 100644
index ac628441ab5..00000000000
--- a/tests/web_2/regress/issue/41781_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-@pragma('dart2js:noInline')
-test(List a, List b) {
-  return [
-    throw 123,
-    {...a, ...b}
-  ];
-}
-
-void main() {
-  try {
-    print(test([1], [2, 3]));
-    print(test([1, 2], [3]));
-  } catch (e) {}
-}
diff --git a/tests/web_2/regress/issue/42088_test.dart b/tests/web_2/regress/issue/42088_test.dart
deleted file mode 100644
index 353791703e0..00000000000
--- a/tests/web_2/regress/issue/42088_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-// Regression test for issue 42088.
-
-class Foo<T> {}
-
-void main() {
-  var f = <T>() => Foo<T>().runtimeType;
-
-  print(f<int>());
-  print(f<String>());
-}
diff --git a/tests/web_2/regress/issue/42189_test.dart b/tests/web_2/regress/issue/42189_test.dart
deleted file mode 100644
index e1bf87ed4f7..00000000000
--- a/tests/web_2/regress/issue/42189_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// dart2jsOptions=-O0
-
-// @dart = 2.7
-
-// Regression test for issue 42891. The root cause was a malformed SSA due to
-// generating a dynamic entry point argument test for an elided parameter
-// directly on the HLocalValue , which should only be an operand to HLocalGet
-// and HLocalSet.
-
-import "package:expect/expect.dart";
-
-class CCC {
-  void foo([num x = 123]) {
-    try {
-      Expect.equals(123, x);
-      x = 0;
-    } finally {
-      Expect.equals(0, x);
-    }
-  }
-
-  void bar([num x = 456]) {
-    try {
-      Expect.equals(123, x);
-      x = 0;
-    } finally {
-      Expect.equals(0, x);
-    }
-  }
-}
-
-void main() {
-  CCC().foo();
-  CCC().bar(123);
-}
diff --git a/tests/web_2/regress/issue/42281_test.dart b/tests/web_2/regress/issue/42281_test.dart
deleted file mode 100644
index 30714f547e7..00000000000
--- a/tests/web_2/regress/issue/42281_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class ComponentFactory<T> {
-  @pragma('dart2js:noInline')
-  Type get componentType => T;
-}
-
-var mm = {'String': String, 'int': int};
-var gf1 = ComponentFactory<int>();
-var gf2 = ComponentFactory<dynamic>();
-Map<String, ComponentFactory> mf = {'RegExp': ComponentFactory<RegExp>()};
-
-ComponentFactory test(String s, [Map<String, ComponentFactory> mf2]) {
-  var f = mf[s];
-  if (f == null) {
-    var t = mm[s];
-    if (mf2 != null) f = mf2[s];
-    if (t != null && t != f?.componentType) {
-      print('not match $t');
-      f = gf2;
-    }
-  }
-  return f;
-}
-
-main() {
-  Map<String, ComponentFactory> mf2 = {'int': ComponentFactory<num>()};
-
-  test('String');
-  test('String', mf2);
-  test('int');
-  test('int', mf2);
-  test('RegExp');
-  test('RegExp', mf2);
-}
diff --git a/tests/web_2/regress/issue/42501_test.dart b/tests/web_2/regress/issue/42501_test.dart
deleted file mode 100644
index 7babd8c089b..00000000000
--- a/tests/web_2/regress/issue/42501_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-typedef F = num Function();
-
-F foo() {
-  T local<T>() => null;
-  return local;
-}
-
-void main() {
-  Expect.type<F>(foo());
-}
diff --git a/tests/web_2/regress/issue/42531_test.dart b/tests/web_2/regress/issue/42531_test.dart
deleted file mode 100644
index aee4ec5f1af..00000000000
--- a/tests/web_2/regress/issue/42531_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-// Regression test for badly named generator body.
-
-Future<void> goo(Future Function() f) async {
-  Expect.equals(102, (await f()).keys.single);
-  Expect.equals(104, (await f()).keys.single);
-}
-
-Future<T> identity<T>(T x) async => x;
-
-extension Gloop<T> on Map<T, List<T>> {
-  // An async method using a 'complex' generator type `Map<T, List<T>>`.  This
-  // requires a separated entry and body, which requires a name, and the name
-  // must be legal JavaScript.
-  Future<Map<T, List<T>>> foo(int x) async {
-    var result = await identity({(x += this.length) as T: <T>[]});
-    return result;
-  }
-
-  Future<int> bar(int x) async {
-    // An async closure using a 'complex' generator type `Map<T, Set<T>>`.  This
-    // requires a separated entry and body, which requires a name, and the name
-    // must be legal JavaScript.
-    await goo(() async => {(x += this.length) as T: <T>{}});
-    return x;
-  }
-}
-
-main() async {
-  // Test method.
-  Map<int, List<int>> o1 = {1: [], 2: []};
-  var o2 = await o1.foo(100);
-  var o3 = await o2.foo(100);
-  Expect.equals('{102: []}', '$o2');
-  Expect.equals('{101: []}', '$o3');
-
-  // Test closure.
-  Map<int, List<int>> o = {1: [], 2: []};
-  int x = await o.bar(100);
-  Expect.equals(104, x);
-}
diff --git a/tests/web_2/regress/issue/43520_safari_test.dart b/tests/web_2/regress/issue/43520_safari_test.dart
deleted file mode 100644
index 52c059ae468..00000000000
--- a/tests/web_2/regress/issue/43520_safari_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-/// Regression test for dartbug.com/43520.
-///
-/// Safari has a bug that makes it a syntax error for a function name to overlap
-/// with names of parameters in functions with default parameter values.
-///
-/// DDC now generates code to circumvent this issue.
-
-import 'package:expect/expect.dart';
-
-String a(Object a, [String f = '3']) {
-  return "$a$f";
-}
-
-main() async {
-  Expect.equals('13', a(1));
-}
diff --git a/tests/web_2/regress/issue/43_test.dart b/tests/web_2/regress/issue/43_test.dart
deleted file mode 100644
index 055815e2c1f..00000000000
--- a/tests/web_2/regress/issue/43_test.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-void main() {
-  print(3 + 4 * 10);
-}
diff --git a/tests/web_2/regress/issue/4434_lib.dart b/tests/web_2/regress/issue/4434_lib.dart
deleted file mode 100644
index f2ecb9797c2..00000000000
--- a/tests/web_2/regress/issue/4434_lib.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-library lib_a;
-
-class A {
-  x(A a) => a._x;
-  get _x => null;
-}
diff --git a/tests/web_2/regress/issue/4434_test.dart b/tests/web_2/regress/issue/4434_test.dart
deleted file mode 100644
index fea2b7a74b9..00000000000
--- a/tests/web_2/regress/issue/4434_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-library lib_b;
-
-import '4434_lib.dart';
-
-class B extends A {}
-
-main() {
-  B b = new B();
-  b.x(b);
-}
diff --git a/tests/web_2/regress/issue/44818_test.dart b/tests/web_2/regress/issue/44818_test.dart
deleted file mode 100644
index 24b252f8278..00000000000
--- a/tests/web_2/regress/issue/44818_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import 'package:expect/expect.dart';
-
-// Regression test for mis-optimized (a / b).runtimeType.
-
-void main() {
-  Type t0;
-  Type t1;
-  for (int i = 0; i < 2; i++) {
-    t0 = i.runtimeType;
-    t1 = ((i * 2) / 2).runtimeType;
-  }
-  final t2 = ((0 * 2) / 2).runtimeType;
-
-  Expect.equals('int', '$t0');
-  Expect.equals('int', '$t1');
-  Expect.equals('int', '$t2');
-}
diff --git a/tests/web_2/regress/issue/4492_test.dart b/tests/web_2/regress/issue/4492_test.dart
deleted file mode 100644
index ec93b4d527e..00000000000
--- a/tests/web_2/regress/issue/4492_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {
-  x(p1, p2) {
-    print(p1 * p2);
-    if (p1 * p2 == 12) return;
-    x("3", "4");
-  }
-}
-
-main() {
-  Expect.throws(() => new A().x(1, 2));
-}
diff --git a/tests/web_2/regress/issue/45046_test.dart b/tests/web_2/regress/issue/45046_test.dart
deleted file mode 100644
index 7f5333e7a17..00000000000
--- a/tests/web_2/regress/issue/45046_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class A {}
-
-class B extends A {}
-
-class Foo<T> {}
-
-T cast<T>(dynamic x) => x as T;
-
-void test(Foo<A> Function(dynamic) f) {
-  var foo = Foo<B>();
-  Expect.identical(foo, f(foo));
-}
-
-void main() {
-  test(cast);
-}
diff --git a/tests/web_2/regress/issue/4515_1_test.dart b/tests/web_2/regress/issue/4515_1_test.dart
deleted file mode 100644
index 08c00f1e7cf..00000000000
--- a/tests/web_2/regress/issue/4515_1_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {
-  a(x) => x + 1;
-}
-
-f(p) => p("A");
-
-main() {
-  A a = new A();
-  a.a(1);
-  Expect.throws(() => print(f(a.a)));
-}
diff --git a/tests/web_2/regress/issue/4515_2_test.dart b/tests/web_2/regress/issue/4515_2_test.dart
deleted file mode 100644
index 580a67625d8..00000000000
--- a/tests/web_2/regress/issue/4515_2_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {
-  a(x) => x + 1;
-}
-
-f(p) => p("A");
-
-main() {
-  A a = new A();
-  a.a(1);
-  Expect.throws(() => print(f((x) => (a.a(x)))));
-}
diff --git a/tests/web_2/regress/issue/4515_3_test.dart b/tests/web_2/regress/issue/4515_3_test.dart
deleted file mode 100644
index 80c7f57795b..00000000000
--- a/tests/web_2/regress/issue/4515_3_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {
-  a(x) => x + 1;
-}
-
-f(p) => p("A");
-
-main() {
-  A a = new A();
-  a.a(1);
-  var v = null;
-  try {
-    v = f(a.a);
-  } catch (e) {}
-
-  Expect.equals(null, v);
-}
diff --git a/tests/web_2/regress/issue/45943_test.dart b/tests/web_2/regress/issue/45943_test.dart
deleted file mode 100644
index 1cdee395544..00000000000
--- a/tests/web_2/regress/issue/45943_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-class _InspectorOverlayLayer {
-  String selection;
-
-  _InspectorOverlayLayer(this.selection) {
-    bool inDebugMode = false;
-    assert(() {
-      inDebugMode = true;
-      return true;
-    }());
-    if (inDebugMode == false) {
-      print('Error');
-    }
-  }
-}
-
-main() {
-  _InspectorOverlayLayer('hello');
-  _InspectorOverlayLayer('hello');
-}
diff --git a/tests/web_2/regress/issue/4639_test.dart b/tests/web_2/regress/issue/4639_test.dart
deleted file mode 100644
index 87dde61c030..00000000000
--- a/tests/web_2/regress/issue/4639_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {
-  bool contains(x, y) => true;
-}
-
-class B {
-  A makeA() => new A();
-  bool test() => makeA().contains(1, 2);
-}
-
-main() {
-  Expect.isTrue(new B().test());
-  Expect.isTrue("x".contains("x"));
-}
diff --git a/tests/web_2/regress/issue/46417_test.dart b/tests/web_2/regress/issue/46417_test.dart
deleted file mode 100644
index 3ba7d9baf8e..00000000000
--- a/tests/web_2/regress/issue/46417_test.dart
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-void main() {
-  var v = {
-    ...Map.unmodifiable({'x': null})
-  };
-  Expect.equals(null, v['x']);
-}
diff --git a/tests/web_2/regress/issue/46589_test.dart b/tests/web_2/regress/issue/46589_test.dart
deleted file mode 100644
index c4070d55198..00000000000
--- a/tests/web_2/regress/issue/46589_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-typedef MyVoid = void;
-
-bool isVoid<X>() {
-  return X == MyVoid;
-}
-
-void main() {
-  Expect.isFalse(isVoid<int>());
-  Expect.isTrue(isVoid<void>());
-}
diff --git a/tests/web_2/regress/issue/47691_test.dart b/tests/web_2/regress/issue/47691_test.dart
deleted file mode 100644
index 7de21ae511f..00000000000
--- a/tests/web_2/regress/issue/47691_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class LoadElements {
-  List call() => [];
-}
-
-class ViewModel {
-  ViewModel(this._loadElements);
-
-  final LoadElements _loadElements;
-
-  void init() {
-    final elements = _loadElements();
-    for (final element in elements) {
-      Expect.identical(element, element);
-    }
-  }
-}
-
-void main() {
-  ViewModel(LoadElements()).init();
-}
diff --git a/tests/web_2/regress/issue/48277b_test.dart b/tests/web_2/regress/issue/48277b_test.dart
deleted file mode 100644
index 32acc0db312..00000000000
--- a/tests/web_2/regress/issue/48277b_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-import 'dart:collection';
-
-class Foo<T> {
-  static Foo<T> make<T>() => Foo<T>();
-}
-
-const f1 = Foo.make<Queue>;
-const f2 = Foo.make<Queue<String>>;
-
-main() {
-  Expect.type<Foo<Iterable>>(f1());
-  Expect.type<Foo<Iterable<Comparable>>>(f2());
-}
diff --git a/tests/web_2/regress/issue/48317_test.dart b/tests/web_2/regress/issue/48317_test.dart
deleted file mode 100644
index ff16cfc8185..00000000000
--- a/tests/web_2/regress/issue/48317_test.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-helper(num c) => c * -1;
-
-void main() {
-  num a = 3;
-
-  label:
-  {
-    break label;
-  }
-
-  Expect.equals(-3, helper(a));
-}
diff --git a/tests/web_2/regress/issue/48383_test.dart b/tests/web_2/regress/issue/48383_test.dart
deleted file mode 100644
index 3100f74ea15..00000000000
--- a/tests/web_2/regress/issue/48383_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-void main() {
-  load();
-  load(cond: true);
-  Expect.equals('side-effect', state);
-}
-
-String state = 'start';
-
-// `cond` can be both true and false.
-// `use` is always be false.
-dynamic load({bool cond = false, bool use = false}) {
-  int? data;
-  if (cond) {
-    data = callWithSideEffects();
-  }
-  return [if (use && cond) data];
-}
-
-@pragma('dart2js:noInline')
-int callWithSideEffects() {
-  state = 'side-effect';
-  return 2;
-}
diff --git a/tests/web_2/regress/issue/48422_test.dart b/tests/web_2/regress/issue/48422_test.dart
deleted file mode 100644
index ea7886c7432..00000000000
--- a/tests/web_2/regress/issue/48422_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-
-void main() {
-  testTryFinally();
-  testTryCatchFinally();
-}
-
-void testTryFinally() {
-  callback(Map<String, dynamic> m) {
-    Expect.isNull(m['foo']);
-  }
-
-  var val;
-  try {
-    try {
-      val = <String, dynamic>{};
-    } catch (_) {
-      val = {}.cast<String, dynamic>();
-    }
-    // This `return` means we consider the `try` block to abort. Nevertheless,
-    // the results of its inference must flow to the `finally`.
-    return;
-  } finally {
-    callback(val);
-  }
-}
-
-void testTryCatchFinally() {
-  callback(Map<String, dynamic> m) {
-    Expect.isNull(m['foo']);
-  }
-
-  var val;
-  try {
-    try {
-      val = <String, dynamic>{};
-    } catch (_) {
-      val = {}.cast<String, dynamic>();
-    }
-    // This `return` means we consider the `try` block to abort. Nevertheless,
-    // the results of its inference must flow to the `finally`.
-    return;
-  } catch (_) {
-  } finally {
-    callback(val);
-  }
-}
diff --git a/tests/web_2/regress/issue/48442_test.dart b/tests/web_2/regress/issue/48442_test.dart
deleted file mode 100644
index 2ba0349050e..00000000000
--- a/tests/web_2/regress/issue/48442_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Test for issue #48442. We can do eager initialization of static variables
-// with initializers containing map literals only when the we know the keys have
-// implementations of `get:hashCode` known to be free of side-effects and
-// without dependencies on other static variables that may not yet exist.
-
-import 'package:expect/expect.dart';
-
-String witness = 'none';
-
-class Foo {
-  const Foo();
-  int get hashCode {
-    witness = 'hashCode';
-    return Object.hash(0, 1);
-  }
-
-  bool operator ==(other) => other is Foo;
-}
-
-const key = Foo();
-
-// This map creation calls Foo.hashCode. In #48442, `map` was initialized
-// eagerly, which crashed in `Object.hash` due to an uninitialized `_hashSeed`
-// variable in the runtime.
-final map = {key: "value"};
-
-void main() {
-  Expect.equals('none', witness);
-  print(map);
-  Expect.equals('hashCode', witness);
-}
diff --git a/tests/web_2/regress/issue/48571_test.dart b/tests/web_2/regress/issue/48571_test.dart
deleted file mode 100644
index d724ffa9477..00000000000
--- a/tests/web_2/regress/issue/48571_test.dart
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-abstract class Base {}
-
-class Child1 extends Base {}
-
-class Child2 extends Base {}
-
-bool trivial(x) => true;
-Base either = DateTime.now().millisecondsSinceEpoch > 0 ? Child2() : Child1();
-
-test1() {
-  Base child = either;
-  if (trivial(child is Child1 && true)) return child;
-  return null;
-}
-
-test2() {
-  Base child = either;
-  if (child is Child1 || trivial(child is Child1 && true)) return child;
-  return null;
-}
-
-test3() {
-  Base child = either;
-  if (trivial(child is Child1 && true) && child is Child2) return child;
-  return null;
-}
-
-test4() {
-  Base child = either;
-  if (child is Child2 && trivial(child is Child1 && true)) return child;
-  return null;
-}
-
-test5() {
-  Base child = either;
-  if ((child is Child1 && true) == false) return child;
-  return null;
-}
-
-test6() {
-  Base child = either;
-  if (trivial(child is Child1 ? false : true)) return child;
-  return null;
-}
-
-test7() {
-  Base child = either;
-  if (trivial(trivial(child is Child1 && true))) return child;
-  return null;
-}
-
-main() {
-  Expect.isTrue(test1() is Child2, "test1");
-  Expect.isTrue(test2() is Child2, "test2");
-  Expect.isTrue(test3() is Child2, "test3");
-  Expect.isTrue(test4() is Child2, "test4");
-  Expect.isTrue(test5() is Child2, "test5");
-  Expect.isTrue(test6() is Child2, "test6");
-  Expect.isTrue(test7() is Child2, "test7");
-}
diff --git a/tests/web_2/regress/issue/49898_test.dart b/tests/web_2/regress/issue/49898_test.dart
deleted file mode 100644
index f4564c39d00..00000000000
--- a/tests/web_2/regress/issue/49898_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-/// This is a regression test for https://github.com/dart-lang/sdk/issues/49898,
-/// but ideally we should have a better test that is more general. For example,
-/// a test that ensures all patch files also have the same static errors
-/// provided as regular sources (the source of the regression is statically
-/// detectable).
-
-import 'dart:typed_data';
-
-void main() {
-  final a = A(ByteData(10)..setUint16(0, 42));
-  print('Number in ByteData: ${a.getUint16()}');
-}
-
-class A {
-  final UnmodifiableByteDataView bytes;
-  A(ByteData bytes) : bytes = UnmodifiableByteDataView(bytes);
-
-  int getUint16() {
-    return bytes.getUint16(0);
-  }
-}
diff --git a/tests/web_2/regress/issue/51527_test.dart b/tests/web_2/regress/issue/51527_test.dart
deleted file mode 100644
index 8ba43f8fe1a..00000000000
--- a/tests/web_2/regress/issue/51527_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Regression test for http://dartbug.com/51527
-
-import 'package:expect/expect.dart';
-
-void noop() {}
-dynamic makeNull() => null;
-
-String test(String o) {
-  switch (o) {
-    case null:
-      return 'NULL';
-    case 'one':
-      return '1';
-    default:
-      return o;
-  }
-}
-
-void main() {
-  final String s1 = 'one';
-  final String s2 = 'two';
-  final String s3 = Function.apply(makeNull, []);
-  final String s4 = Function.apply(noop, []);
-
-  Expect.equals('1', test(s1));
-  Expect.equals('two', test(s2));
-  Expect.equals('NULL', test(s3));
-  Expect.equals('NULL', test(s4));
-}
diff --git a/tests/web_2/regress/issue/7_test.dart b/tests/web_2/regress/issue/7_test.dart
deleted file mode 100644
index 48631e0fbff..00000000000
--- a/tests/web_2/regress/issue/7_test.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-void main() {
-  print(3 + 4);
-}
diff --git a/tests/web_2/regress/issue/881_test.dart b/tests/web_2/regress/issue/881_test.dart
deleted file mode 100644
index 04a8f10e712..00000000000
--- a/tests/web_2/regress/issue/881_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for DartPad issue 881.
-
-@pragma('dart2js:disableFinal')
-void main() {
-  String v = null;
-  print('${v.hashCode}');
-}
diff --git a/tests/web_2/regress/null_aware_test.dart b/tests/web_2/regress/null_aware_test.dart
deleted file mode 100644
index 7c766ae0bef..00000000000
--- a/tests/web_2/regress/null_aware_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for failure on CFE null-aware encoding.
-
-class Class {
-  Map<String, Set<String>> map;
-
-  List<String> method(String node, Set<String> set) => set.add(node)
-      ? [node, ...?map[node]?.expand((node) => method(node, set))?.toList()]
-      : [];
-}
-
-main(args) {
-  if (args != null && args.isNotEmpty) new Class().method('', <String>{});
-}
diff --git a/tests/web_2/regress/private_names_lib1.dart b/tests/web_2/regress/private_names_lib1.dart
deleted file mode 100644
index 823a4d4a959..00000000000
--- a/tests/web_2/regress/private_names_lib1.dart
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'private_names_lib2.dart';
-
-export 'private_names_lib2.dart' show DoubleLinkedQueueEntry;
-
-abstract class _DoubleLinkedQueueEntry<E> {
-  _DoubleLinkedQueueEntry<E>? _previousLink;
-  _DoubleLinkedQueueEntry<E>? _nextLink;
-
-  void _link(
-      _DoubleLinkedQueueEntry<E>? previous, _DoubleLinkedQueueEntry<E>? next) {
-    _nextLink = next;
-    _previousLink = previous;
-    previous?._nextLink = this;
-    next?._previousLink = this;
-  }
-
-  _DoubleLinkedQueueElement<E>? _asNonSentinelEntry();
-
-  void _prepend(E element, DoubleLinkedQueue<E>? queue) {
-    _DoubleLinkedQueueElement<E>(element, queue)._link(_previousLink, this);
-  }
-}
-
-class _DoubleLinkedQueueElement<E> extends _DoubleLinkedQueueEntry<E>
-    implements DoubleLinkedQueueEntry<E> {
-  DoubleLinkedQueue<E>? _queue;
-  E element;
-
-  _DoubleLinkedQueueElement(this.element, this._queue);
-
-  void prepend(E e) {
-    _prepend(e, _queue);
-    _queue?._elementCount++;
-  }
-
-  _DoubleLinkedQueueElement<E> _asNonSentinelEntry() => this;
-}
-
-class _DoubleLinkedQueueSentinel<E> extends _DoubleLinkedQueueEntry<E> {
-  _DoubleLinkedQueueSentinel() {
-    _previousLink = this;
-    _nextLink = this;
-  }
-
-  Null _asNonSentinelEntry() => null;
-}
-
-class DoubleLinkedQueue<E> /*extends Iterable<E> implements Queue<E>*/ {
-  final _DoubleLinkedQueueSentinel<E> _sentinel =
-      _DoubleLinkedQueueSentinel<E>();
-
-  int _elementCount = 0;
-
-  DoubleLinkedQueue();
-
-  factory DoubleLinkedQueue.from(Iterable<dynamic> elements) {
-    DoubleLinkedQueue<E> list = DoubleLinkedQueue<E>();
-    for (final e in elements) {
-      list.addLast(e as E);
-    }
-    return list;
-  }
-
-  void addLast(E value) {
-    _sentinel._prepend(value, this);
-    _elementCount++;
-  }
-
-  DoubleLinkedQueueEntry<E>? firstEntry() =>
-      _sentinel._nextLink!._asNonSentinelEntry();
-}
diff --git a/tests/web_2/regress/private_names_lib2.dart b/tests/web_2/regress/private_names_lib2.dart
deleted file mode 100644
index 050c31a9921..00000000000
--- a/tests/web_2/regress/private_names_lib2.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class DoubleLinkedQueueEntry<E> {
-  DoubleLinkedQueueEntry<E>? _previousLink;
-  DoubleLinkedQueueEntry<E>? _nextLink;
-
-  E element;
-
-  DoubleLinkedQueueEntry(this.element);
-
-  void _link(
-      DoubleLinkedQueueEntry<E>? previous, DoubleLinkedQueueEntry<E>? next) {
-    _nextLink = next;
-    _previousLink = previous;
-    previous?._nextLink = this;
-    next?._previousLink = this;
-  }
-
-  void prepend(E e) {
-    DoubleLinkedQueueEntry<E>(e)._link(_previousLink, this);
-  }
-}
diff --git a/tests/web_2/regress/private_names_test.dart b/tests/web_2/regress/private_names_test.dart
deleted file mode 100644
index fd157b2287a..00000000000
--- a/tests/web_2/regress/private_names_test.dart
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Derived from lib_2/collection/queue_test which showed in error in the
-// of private names in dart2js.
-
-// @dart = 2.9
-
-library queue.test;
-
-import 'private_names_lib1.dart';
-
-class DoubleLinkedQueueTest {
-  void testMain() {
-    testQueueElements();
-  }
-
-  void testQueueElements() {
-    DoubleLinkedQueue<int> queue1 = new DoubleLinkedQueue<int>.from([1, 2, 3]);
-    var firstEntry = queue1.firstEntry();
-    firstEntry.prepend(4);
-  }
-}
-
-void linkEntryTest() {
-  var entry = new DoubleLinkedQueueEntry(42);
-}
-
-main() {
-  new DoubleLinkedQueueTest().testMain();
-  linkEntryTest();
-}
diff --git a/tests/web_2/regress/type_variables_is_test.dart b/tests/web_2/regress/type_variables_is_test.dart
deleted file mode 100644
index c51180857d6..00000000000
--- a/tests/web_2/regress/type_variables_is_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class Bar<X> implements Baz {}
-
-class Baz {}
-
-var g;
-
-abstract class Foo<A extends Baz> {
-  final bool thing = g is A;
-}
-
-class Qux extends Foo<Baz> {}
-
-main() {
-  g = new Baz();
-  var f = new Qux();
-  Expect.isTrue(f.thing);
-  g = 'ello';
-  var f2 = new Qux();
-  Expect.isFalse(f2.thing);
-}
diff --git a/tests/web_2/replaced_type_variable_test.dart b/tests/web_2/replaced_type_variable_test.dart
deleted file mode 100644
index f9c7e7e1166..00000000000
--- a/tests/web_2/replaced_type_variable_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-// This class is inlined away.
-class Class<T> {
-  const Class();
-
-  Type get type => T;
-}
-
-class A {}
-
-@pragma('dart2js:noInline')
-test(o) => Expect.notEquals('dynamic', '$o');
-
-main() {
-  test(const Class<A>().type);
-}
diff --git a/tests/web_2/return_setter_test.dart b/tests/web_2/return_setter_test.dart
deleted file mode 100644
index 2d56e6770d4..00000000000
--- a/tests/web_2/return_setter_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {
-  int foo;
-
-  static int invocations;
-
-  static bar() {
-    Expect.equals(0, invocations);
-    invocations++;
-    return 2;
-  }
-}
-
-main() {
-  A.invocations = 0;
-
-  int a = (new A().foo = 2);
-  Expect.equals(2, a);
-
-  a = (new A().foo = A.bar());
-  Expect.equals(2, a);
-}
diff --git a/tests/web_2/round_constant_folding_test.dart b/tests/web_2/round_constant_folding_test.dart
deleted file mode 100644
index 8303723afa0..00000000000
--- a/tests/web_2/round_constant_folding_test.dart
+++ /dev/null
@@ -1,182 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-const double PD1 = 0.0;
-const double PD2 = double.minPositive;
-const double PD3 = 2.0 * double.minPositive;
-const double PD4 = 1.18e-38;
-const double PD5 = 1.18e-38 * 2;
-const double PD6 = 0.49999999999999994;
-const double PD7 = 0.5;
-const double PD8 = 0.9999999999999999;
-const double PD9 = 1.0;
-const double PD10 = 1.000000000000001;
-const double PD11 = double.maxFinite;
-
-const double ND1 = -PD1;
-const double ND2 = -PD2;
-const double ND3 = -PD3;
-const double ND4 = -PD4;
-const double ND5 = -PD5;
-const double ND6 = -PD6;
-const double ND7 = -PD7;
-const double ND8 = -PD8;
-const double ND9 = -PD9;
-const double ND10 = -PD10;
-const double ND11 = -PD11;
-
-const X1 = double.infinity;
-const X2 = double.negativeInfinity;
-const X3 = double.nan;
-
-// The following numbers are on the border of 52 bits.
-// For example: 4503599627370499 + 0.5 => 4503599627370500.
-const PQ1 = 4503599627370496.0;
-const PQ2 = 4503599627370497.0;
-const PQ3 = 4503599627370498.0;
-const PQ4 = 4503599627370499.0;
-const PQ5 = 9007199254740991.0;
-const PQ6 = 9007199254740992.0;
-
-const NQ1 = -PQ1;
-const NQ2 = -PQ2;
-const NQ3 = -PQ3;
-const NQ4 = -PQ4;
-const NQ5 = -PQ5;
-const NQ6 = -PQ6;
-
-const int PI1 = 0;
-const int PI2 = 1;
-const int PI3 = 0x1234;
-const int PI4 = 0x12345678;
-const int PI5 = 0x123456789AB;
-const int PI6 = 0x123456789ABCD00 + 0xEF;
-const int PI7 = 0x123456789ABCD * 0x1234567 * 0x1234567 * 0x1234567;
-//const int PI7 = 0x123456789ABCDEF0123456789ABCDEF0123456789ABCDEF;
-
-const int NI1 = 0 - PI1;
-const int NI2 = -PI2;
-const int NI3 = -PI3;
-const int NI4 = -PI4;
-const int NI5 = -PI5;
-const int NI6 = -PI6;
-const int NI7 = -PI7;
-
-/// Ensures that the behaviour of `action()` is the same as `value.round()`.
-@pragma(
-    'dart2js:noInline') // To ensure 'value.round()' has a non-constant receiver.
-check(value, action) {
-  var result1, result2;
-  try {
-    result1 = value.round();
-  } catch (e) {
-    result1 = e;
-  }
-
-  try {
-    result2 = action();
-  } catch (e) {
-    result2 = e;
-  }
-
-  Expect.equals(result1.runtimeType, result2.runtimeType);
-  if (result1 is num) {
-    Expect.equals(result1, result2);
-    Expect.equals(result1 is int, result2 is int);
-  } else {
-    Expect.equals(result1.runtimeType, result2.runtimeType);
-    Expect.isTrue(result1 is Error);
-  }
-}
-
-@pragma('dart2js:noInline')
-void unusedCall(num x) {
-  x.round(); // This call should not be removed since it might throw.
-}
-
-main() {
-  check(PD1, () => PD1.round());
-  check(PD2, () => PD2.round());
-  check(PD3, () => PD3.round());
-  check(PD4, () => PD4.round());
-  check(PD5, () => PD5.round());
-  check(PD6, () => PD6.round());
-  check(PD7, () => PD7.round());
-  check(PD8, () => PD8.round());
-  check(PD9, () => PD9.round());
-  check(PD10, () => PD10.round());
-  check(PD11, () => PD11.round());
-
-  check(ND1, () => ND1.round());
-  check(ND2, () => ND2.round());
-  check(ND3, () => ND3.round());
-  check(ND4, () => ND4.round());
-  check(ND5, () => ND5.round());
-  check(ND6, () => ND6.round());
-  check(ND7, () => ND7.round());
-  check(ND8, () => ND8.round());
-  check(ND9, () => ND9.round());
-  check(ND10, () => ND10.round());
-  check(ND11, () => ND11.round());
-
-  check(X1, () => X1.round());
-  check(X2, () => X2.round());
-  check(X3, () => X3.round());
-
-  check(PQ1, () => PQ1.round());
-  check(PQ2, () => PQ2.round());
-  check(PQ3, () => PQ3.round());
-  check(PQ4, () => PQ4.round());
-  check(PQ5, () => PQ5.round());
-  check(PQ6, () => PQ6.round());
-
-  check(NQ1, () => NQ1.round());
-  check(NQ2, () => NQ2.round());
-  check(NQ3, () => NQ3.round());
-  check(NQ4, () => NQ4.round());
-  check(NQ5, () => NQ5.round());
-  check(NQ6, () => NQ6.round());
-
-  check(PI1, () => PI1.round());
-  check(PI2, () => PI2.round());
-  check(PI3, () => PI3.round());
-  check(PI4, () => PI4.round());
-  check(PI5, () => PI5.round());
-  check(PI6, () => PI6.round());
-  check(PI7, () => PI7.round());
-
-  check(NI1, () => NI1.round());
-  check(NI2, () => NI2.round());
-  check(NI3, () => NI3.round());
-  check(NI4, () => NI4.round());
-  check(NI5, () => NI5.round());
-  check(NI6, () => NI6.round());
-  check(NI7, () => NI7.round());
-
-  // Check that the operation is not removed if it can throw, even if the result
-  // is unused.
-  Expect.throws(() {
-    X1.round();
-  });
-  Expect.throws(() {
-    X2.round();
-  });
-  Expect.throws(() {
-    X3.round();
-  });
-  unusedCall(0);
-  Expect.throws(() {
-    unusedCall(X1);
-  });
-  Expect.throws(() {
-    unusedCall(X2);
-  });
-  Expect.throws(() {
-    unusedCall(X3);
-  });
-}
diff --git a/tests/web_2/rti_need_for_closure_signature_test.dart b/tests/web_2/rti_need_for_closure_signature_test.dart
deleted file mode 100644
index 362930feaad..00000000000
--- a/tests/web_2/rti_need_for_closure_signature_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-/// User-facing regression test: ensure we correctly record when a closure needs
-/// runtime type information for a type parameter that may be used or
-/// .runtimeType.
-
-// This test should be run in strong mode to ensure we have not regressed on
-// this failure.
-class Bar<Q> {
-  Q aVar;
-
-  Bar(this.aVar);
-
-  baz(onThing(Q value)) {
-    onThing(aVar);
-  }
-}
-
-foo<T>(Bar<T> bar) {
-  bar.baz((T value) {
-    print('hi');
-  });
-}
-
-main() {
-  foo<int>(new Bar<int>(3));
-}
diff --git a/tests/web_2/rti_need_for_runtime_type_test.dart b/tests/web_2/rti_need_for_runtime_type_test.dart
deleted file mode 100644
index d4697aec2d8..00000000000
--- a/tests/web_2/rti_need_for_runtime_type_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-/// User-facing regression test: ensure we correctly record when a closure needs
-/// runtime type information for a type parameter that may be used or
-/// .runtimeType.
-class A<T> {
-  final f;
-  A() : f = (() => new C<T>());
-}
-
-class C<T> {}
-
-main() => print(new A<int>().f().runtimeType);
diff --git a/tests/web_2/runtime_type_closure_equals1_test.dart b/tests/web_2/runtime_type_closure_equals1_test.dart
deleted file mode 100644
index 7a0d8235d95..00000000000
--- a/tests/web_2/runtime_type_closure_equals1_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-class Class<T> {
-  Class();
-}
-
-main() {
-  local1a() {}
-
-  local1b() {}
-
-  local2(int i, String s) => i;
-
-  Expect.isTrue(local1a.runtimeType == local1b.runtimeType);
-  Expect.isFalse(local1a.runtimeType == local2.runtimeType);
-  new Class();
-}
diff --git a/tests/web_2/runtime_type_closure_equals2_test.dart b/tests/web_2/runtime_type_closure_equals2_test.dart
deleted file mode 100644
index 22aa514e10d..00000000000
--- a/tests/web_2/runtime_type_closure_equals2_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-class Class<T> {
-  Class();
-}
-
-main() {
-  T local1a<T>() => null;
-
-  T local1b<T>() => null;
-
-  T local2<T>(T t, String s) => t;
-
-  Expect.isTrue(local1a.runtimeType == local1b.runtimeType);
-  Expect.isFalse(local1a.runtimeType == local2.runtimeType);
-  new Class();
-}
diff --git a/tests/web_2/runtime_type_closure_equals3_test.dart b/tests/web_2/runtime_type_closure_equals3_test.dart
deleted file mode 100644
index 6ed0c0d1494..00000000000
--- a/tests/web_2/runtime_type_closure_equals3_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-String method() => null;
-
-class Class1<T> {
-  Class1();
-
-  method() {
-    T local1a() => null;
-
-    T local1b() => null;
-
-    T local2(T t, String s) => t;
-
-    Expect.isTrue(local1a.runtimeType == local1b.runtimeType);
-    Expect.isFalse(local1a.runtimeType == local2.runtimeType);
-    Expect.isFalse(local1a.runtimeType == method.runtimeType);
-  }
-}
-
-class Class2<T> {
-  Class2();
-}
-
-main() {
-  new Class1<int>().method();
-  new Class2<int>();
-}
diff --git a/tests/web_2/runtime_type_closure_equals4_test.dart b/tests/web_2/runtime_type_closure_equals4_test.dart
deleted file mode 100644
index 7b17bb1faaf..00000000000
--- a/tests/web_2/runtime_type_closure_equals4_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-class Class1<T> {
-  Class1();
-
-  method1a() => null;
-
-  method1b() => null;
-
-  method2(t, s) => t;
-}
-
-class Class2<T> {
-  Class2();
-}
-
-main() {
-  var c = new Class1<int>();
-
-  Expect.isTrue(c.method1a.runtimeType == c.method1b.runtimeType);
-  Expect.isFalse(c.method1a.runtimeType == c.method2.runtimeType);
-  new Class2<int>();
-}
diff --git a/tests/web_2/runtime_type_closure_equals5_test.dart b/tests/web_2/runtime_type_closure_equals5_test.dart
deleted file mode 100644
index fd2616ee080..00000000000
--- a/tests/web_2/runtime_type_closure_equals5_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-class Class1<T> {
-  Class1();
-
-  T method1a() => null;
-
-  T method1b() => null;
-
-  T method2(T t, String s) => t;
-}
-
-class Class2<T> {
-  Class2();
-}
-
-main() {
-  var c = new Class1<int>();
-
-  Expect.isTrue(c.method1a.runtimeType == c.method1b.runtimeType);
-  Expect.isFalse(c.method1a.runtimeType == c.method2.runtimeType);
-  new Class2<int>();
-}
diff --git a/tests/web_2/runtime_type_closure_equals6_test.dart b/tests/web_2/runtime_type_closure_equals6_test.dart
deleted file mode 100644
index 3cb05893f6c..00000000000
--- a/tests/web_2/runtime_type_closure_equals6_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-method1a() => null;
-
-method1b() => null;
-
-method2(t, s) => t;
-
-class Class<T> {
-  Class();
-}
-
-main() {
-  Expect.isTrue(method1a.runtimeType == method1b.runtimeType);
-  Expect.isFalse(method1a.runtimeType == method2.runtimeType);
-  new Class<int>();
-}
diff --git a/tests/web_2/runtime_type_closure_equals7_test.dart b/tests/web_2/runtime_type_closure_equals7_test.dart
deleted file mode 100644
index 860f25ca23f..00000000000
--- a/tests/web_2/runtime_type_closure_equals7_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-T method1a<T>() => null;
-
-T method1b<T>() => null;
-
-T method2<T>(T t, String s) => t;
-
-class Class<T> {
-  Class();
-}
-
-main() {
-  Expect.isTrue(method1a.runtimeType == method1b.runtimeType);
-  Expect.isFalse(method1a.runtimeType == method2.runtimeType);
-  new Class<int>();
-}
diff --git a/tests/web_2/runtime_type_closure_equals8_test.dart b/tests/web_2/runtime_type_closure_equals8_test.dart
deleted file mode 100644
index 9cfe49275d0..00000000000
--- a/tests/web_2/runtime_type_closure_equals8_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-class Class1<S> {
-  Class1();
-
-  T method1a<T>() => null;
-
-  T method1b<T>() => null;
-
-  T method2<T>(T t, String s) => t;
-}
-
-class Class2<T> {
-  Class2();
-}
-
-main() {
-  var c = new Class1<int>();
-
-  Expect.isTrue(c.method1a.runtimeType == c.method1b.runtimeType);
-  Expect.isFalse(c.method1a.runtimeType == c.method2.runtimeType);
-  new Class2<int>();
-}
diff --git a/tests/web_2/runtime_type_equals1_test.dart b/tests/web_2/runtime_type_equals1_test.dart
deleted file mode 100644
index 5f20dfae65c..00000000000
--- a/tests/web_2/runtime_type_equals1_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-class Class1a<T> {
-  Class1a();
-
-  bool operator ==(other) {
-    if (identical(this, other)) return true;
-    return runtimeType == other.runtimeType;
-  }
-}
-
-class Class1b<T> extends Class1a<T> {
-  Class1b();
-}
-
-class Class1c<T> implements Class1a<T> {
-  Class1c();
-}
-
-class Class2<T> {
-  Class2();
-}
-
-main() {
-  Class1a<int> cls1a = new Class1a<int>();
-  Class1a<int> cls1b1 = new Class1b<int>();
-  Class1a<int> cls1b2 = new Class1b<int>();
-  Class1c<int> cls1c = new Class1c<int>();
-  Class2<int> cls2 = new Class2<int>();
-  Expect.isFalse(cls1a == cls1b1);
-  Expect.isTrue(cls1b1 == cls1b2);
-  Expect.isFalse(cls1a == cls1c);
-  Expect.isFalse(cls1a == cls2);
-}
diff --git a/tests/web_2/runtime_type_equals2_test.dart b/tests/web_2/runtime_type_equals2_test.dart
deleted file mode 100644
index f73ced508af..00000000000
--- a/tests/web_2/runtime_type_equals2_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-class Class1a<T> {
-  Class1a();
-
-  bool operator ==(other) {
-    if (identical(this, other)) return true;
-    return other.runtimeType == runtimeType;
-  }
-}
-
-class Class1b<T> extends Class1a<T> {
-  Class1b();
-}
-
-class Class1c<T> implements Class1a<T> {
-  Class1c();
-}
-
-class Class2<T> {
-  Class2();
-}
-
-main() {
-  Class1a<int> cls1a = new Class1a<int>();
-  Class1a<int> cls1b1 = new Class1b<int>();
-  Class1a<int> cls1b2 = new Class1b<int>();
-  Class1c<int> cls1c = new Class1c<int>();
-  Class2<int> cls2 = new Class2<int>();
-  Expect.isFalse(cls1a == cls1b1);
-  Expect.isTrue(cls1b1 == cls1b2);
-  Expect.isFalse(cls1a == cls1c);
-  Expect.isFalse(cls1a == cls2);
-}
diff --git a/tests/web_2/runtime_type_equals3_test.dart b/tests/web_2/runtime_type_equals3_test.dart
deleted file mode 100644
index 3d909c4567a..00000000000
--- a/tests/web_2/runtime_type_equals3_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-class Class1a<T> {
-  Class1a();
-
-  bool operator ==(other) {
-    if (identical(this, other)) return true;
-    return runtimeType == other?.runtimeType;
-  }
-}
-
-class Class1b<T> extends Class1a<T> {
-  Class1b();
-}
-
-class Class1c<T> implements Class1a<T> {
-  Class1c();
-}
-
-class Class2<T> {
-  Class2();
-}
-
-main() {
-  Class1a<int> cls1a = new Class1a<int>();
-  Class1a<int> cls1b1 = new Class1b<int>();
-  Class1a<int> cls1b2 = new Class1b<int>();
-  Class1c<int> cls1c = new Class1c<int>();
-  Class2<int> cls2 = new Class2<int>();
-  Expect.isFalse(cls1a == cls1b1);
-  Expect.isTrue(cls1b1 == cls1b2);
-  Expect.isFalse(cls1a == cls1c);
-  Expect.isFalse(cls1a == cls2);
-}
diff --git a/tests/web_2/runtime_type_equals4_test.dart b/tests/web_2/runtime_type_equals4_test.dart
deleted file mode 100644
index 8aa06475bb2..00000000000
--- a/tests/web_2/runtime_type_equals4_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-class Class1a<T> {
-  Class1a();
-
-  bool operator ==(other) {
-    if (identical(this, other)) return true;
-    return other?.runtimeType == runtimeType;
-  }
-}
-
-class Class1b<T> extends Class1a<T> {
-  Class1b();
-}
-
-class Class1c<T> implements Class1a<T> {
-  Class1c();
-}
-
-class Class2<T> {
-  Class2();
-}
-
-main() {
-  Class1a<int> cls1a = new Class1a<int>();
-  Class1a<int> cls1b1 = new Class1b<int>();
-  Class1a<int> cls1b2 = new Class1b<int>();
-  Class1c<int> cls1c = new Class1c<int>();
-  Class2<int> cls2 = new Class2<int>();
-  Expect.isFalse(cls1a == cls1b1);
-  Expect.isTrue(cls1b1 == cls1b2);
-  Expect.isFalse(cls1a == cls1c);
-  Expect.isFalse(cls1a == cls2);
-}
diff --git a/tests/web_2/runtime_type_equals5_test.dart b/tests/web_2/runtime_type_equals5_test.dart
deleted file mode 100644
index 532deb9bc9c..00000000000
--- a/tests/web_2/runtime_type_equals5_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class Class1 {
-  Class1();
-}
-
-class Class2<T> implements Class1 {
-  Class2();
-}
-
-main() {
-  Class1 cls1 = new Class1();
-  Class1 cls2a = new Class2<int>();
-  Class1 cls2b = new Class2<int>();
-  Class1 cls2c = new Class2<String>();
-  var r1 = cls1.runtimeType;
-  var r2a = cls2a.runtimeType;
-  var r2b = cls2b.runtimeType;
-  var r2c = cls2c.runtimeType;
-  Expect.equals(r1, r1);
-  Expect.notEquals(r1, r2a);
-  Expect.notEquals(r1, r2b);
-  Expect.notEquals(r1, r2c);
-  Expect.equals(r2a, r2a);
-  Expect.equals(r2a, r2b);
-  Expect.notEquals(r2a, r2c);
-  Expect.equals(r2b, r2b);
-  Expect.notEquals(r2b, r2c);
-  Expect.equals(r2c, r2c);
-}
diff --git a/tests/web_2/runtime_type_equals6_test.dart b/tests/web_2/runtime_type_equals6_test.dart
deleted file mode 100644
index f71999f217c..00000000000
--- a/tests/web_2/runtime_type_equals6_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-class Class1a {
-  Class1a();
-}
-
-class Class1b<T> extends Class1a {
-  Class1b();
-}
-
-class Class1c<T> extends Class1a {
-  Class1c();
-}
-
-class Class2<T> {
-  Class2();
-}
-
-test(Class1a c, Type type) {
-  return c.runtimeType == type;
-}
-
-main() {
-  Expect.isTrue(test(new Class1a(), Class1a));
-  Expect.isFalse(test(new Class1b<int>(), Class1a));
-  Expect.isFalse(test(new Class1c<int>(), Class1a));
-  new Class2<int>();
-}
diff --git a/tests/web_2/runtime_type_equals7_test.dart b/tests/web_2/runtime_type_equals7_test.dart
deleted file mode 100644
index bf1460f6ed2..00000000000
--- a/tests/web_2/runtime_type_equals7_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-class Class1a<T> {
-  Class1a();
-}
-
-class Class1b<T> extends Class1a<T> {
-  Class1b();
-}
-
-class Class1c<T> extends Class1a<T> {
-  Class1c();
-}
-
-class Class2<T> {
-  Class2();
-}
-
-test(Class1a c, Type type) {
-  return c.runtimeType == type;
-}
-
-main() {
-  Expect.isTrue(test(new Class1a(), Class1a));
-  Expect.isFalse(test(new Class1b<int>(), Class1a));
-  Expect.isFalse(test(new Class1c<int>(), Class1a));
-  new Class2<int>();
-}
diff --git a/tests/web_2/runtime_type_equals8_test.dart b/tests/web_2/runtime_type_equals8_test.dart
deleted file mode 100644
index 31f9f8e71f3..00000000000
--- a/tests/web_2/runtime_type_equals8_test.dart
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong
-
-import 'package:expect/expect.dart';
-
-class Class1a {
-  Class1a();
-}
-
-class Class1b<T> extends Class1a {
-  Class1b();
-}
-
-class Class1c<T> extends Class1a {
-  Class1c();
-}
-
-class Class2<T> {
-  Class2();
-}
-
-class Class3<T> {
-  final Class1a field;
-
-  Class3(this.field);
-}
-
-test(Class3 c, Type type) {
-  return c.field.runtimeType == type;
-}
-
-main() {
-  Expect.isTrue(test(new Class3<int>(new Class1a()), Class1a));
-  Expect.isFalse(test(new Class3<int>(new Class1b<int>()), Class1a));
-  Expect.isFalse(test(new Class3<int>(new Class1c<int>()), Class1a));
-  new Class2<int>();
-}
diff --git a/tests/web_2/runtime_type_int_test.dart b/tests/web_2/runtime_type_int_test.dart
deleted file mode 100644
index 71ac2423816..00000000000
--- a/tests/web_2/runtime_type_int_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that in dart2js, the constant system matches the runtime
-// handling of numbers.
-
-import "package:expect/expect.dart";
-
-main() {
-  var x = 10000000000000000;
-  var y = [x][0];
-  var a = x.runtimeType;
-  var b = y.runtimeType;
-
-  Expect.equals(x, y);
-  Expect.isTrue(x is int);
-  Expect.isTrue(y is int);
-  Expect.equals(x.runtimeType, int);
-  Expect.equals(y.runtimeType, int);
-}
diff --git a/tests/web_2/runtime_type_test.dart b/tests/web_2/runtime_type_test.dart
deleted file mode 100644
index cc32601a8b4..00000000000
--- a/tests/web_2/runtime_type_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong --no-minify
-
-// Test that Type.toString returns nice strings for native classes with
-// reserved names and for raw types.
-
-import "package:expect/expect.dart";
-
-class C<T> {}
-
-class D<X, Y, Z> {}
-
-class Class$With$Dollar {}
-
-void main() {
-  Expect.equals('C<dynamic>', new C().runtimeType.toString());
-  Expect.equals('C<int>', new C<int>().runtimeType.toString());
-  Expect.equals('C<double>', new C<double>().runtimeType.toString());
-  Expect.equals('C<num>', new C<num>().runtimeType.toString());
-  Expect.equals('C<bool>', new C<bool>().runtimeType.toString());
-  Expect.equals('D<dynamic, dynamic, dynamic>', new D().runtimeType.toString());
-  Expect.equals('D<dynamic, int, dynamic>',
-      new D<dynamic, int, dynamic>().runtimeType.toString());
-  D d = new D<dynamic, D, D<dynamic, dynamic, int>>();
-  Expect.equals(
-      'D<dynamic, D<dynamic, dynamic, dynamic>, D<dynamic, dynamic, int>>',
-      d.runtimeType.toString());
-  Expect.equals(r'C<Class$With$Dollar>',
-      new C<Class$With$Dollar>().runtimeType.toString());
-}
diff --git a/tests/web_2/runtime_type_to_string1_test.dart b/tests/web_2/runtime_type_to_string1_test.dart
deleted file mode 100644
index 611c16f0a68..00000000000
--- a/tests/web_2/runtime_type_to_string1_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong --omit-implicit-checks --lax-runtime-type-to-string --experiment-new-rti
-
-import 'package:expect/expect.dart';
-
-class Class<T> {
-  Class();
-}
-
-main() {
-  // Since the type argument of `Class` is only needed for
-  // `.runtimeType.toString()`, it is not reified, and the toString is therefore
-  // 'Class<erased>'.
-  String className = (Class).toString();
-  className = className.substring(0, className.indexOf('<'));
-  String erasedName = '$className<erased>';
-  Expect.equals(erasedName, new Class().runtimeType.toString());
-  Expect.equals(erasedName, new Class<int>().runtimeType.toString());
-}
diff --git a/tests/web_2/scope_info_field_loop_test.dart b/tests/web_2/scope_info_field_loop_test.dart
deleted file mode 100644
index c756dfabe86..00000000000
--- a/tests/web_2/scope_info_field_loop_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Regression test for failure caused by refactoring of handling of scope info
-// locals map in the ssa locals handler.
-
-// @dart=2.9
-
-class Class {
-  static const list = [];
-  var field = {for (final key in list) key: null};
-
-  Class(parameter) {
-    parameter;
-  }
-}
-
-main() {
-  new Class(null);
-}
diff --git a/tests/web_2/send_test.dart b/tests/web_2/send_test.dart
deleted file mode 100644
index c37b5eb41f4..00000000000
--- a/tests/web_2/send_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-class A {
-  int foo() {
-    return 42;
-  }
-}
-
-void main() {
-  int i = new A().foo();
-  print(i);
-  if (i == 42) {
-    print('pass');
-  } else {
-    throw "error";
-  }
-}
diff --git a/tests/web_2/simple_string_constant_test.dart b/tests/web_2/simple_string_constant_test.dart
deleted file mode 100644
index 51b980b0b75..00000000000
--- a/tests/web_2/simple_string_constant_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-const String m = "\u{21}";
-
-main() {
-  Expect.equals('!', m);
-}
diff --git a/tests/web_2/source_mapping_crash_source.dart b/tests/web_2/source_mapping_crash_source.dart
deleted file mode 100644
index 470204ded97..00000000000
--- a/tests/web_2/source_mapping_crash_source.dart
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-part of source_mapping_crash_test;
-
-/*******************************************************************************
- * Long comment to make positions in this file exceed those in
- * 'source_mapping_crash_test.dart'.
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- *******************************************************************************
- */
-class Super {
-  final sb = new StringBuffer();
-  Super(var y);
-}
diff --git a/tests/web_2/source_mapping_crash_test.dart b/tests/web_2/source_mapping_crash_test.dart
deleted file mode 100644
index 8700f37d933..00000000000
--- a/tests/web_2/source_mapping_crash_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-library source_mapping_crash_test;
-
-part 'source_mapping_crash_source.dart';
-
-class Sub extends Super {
-  Sub(var x) : super(x.y);
-}
-
-class X {
-  var y;
-}
-
-main() {
-  new Sub(new X());
-}
diff --git a/tests/web_2/static_field2_test.dart b/tests/web_2/static_field2_test.dart
deleted file mode 100644
index fe0b891eaf9..00000000000
--- a/tests/web_2/static_field2_test.dart
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {
-  static int b;
-}
-
-main() {
-  A.b = 42;
-  Expect.equals(42, A.b);
-}
diff --git a/tests/web_2/static_field_test.dart b/tests/web_2/static_field_test.dart
deleted file mode 100644
index a449c5d115d..00000000000
--- a/tests/web_2/static_field_test.dart
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {
-  static int b;
-
-  setA(val) {
-    b = val;
-  }
-
-  bar() {
-    return b;
-  }
-
-  bar2() {
-    return A.b;
-  }
-}
-
-main() {
-  A a = new A();
-  a.setA(42);
-  Expect.equals(42, a.bar());
-  Expect.equals(42, a.bar2());
-}
diff --git a/tests/web_2/static_method2_test.dart b/tests/web_2/static_method2_test.dart
deleted file mode 100644
index 43c55dd007b..00000000000
--- a/tests/web_2/static_method2_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {
-  static foo(res) {
-    return res;
-  }
-}
-
-main() {
-  Expect.equals(42, A.foo(42));
-}
diff --git a/tests/web_2/static_method_test.dart b/tests/web_2/static_method_test.dart
deleted file mode 100644
index aa14749066b..00000000000
--- a/tests/web_2/static_method_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {
-  static foo(res) {
-    return res;
-  }
-
-  bar(res) {
-    return foo(res);
-  }
-
-  bar2(res) {
-    return A.foo(res);
-  }
-}
-
-main() {
-  A a = new A();
-  Expect.equals(42, a.bar(42));
-  Expect.equals(43, a.bar2(43));
-}
diff --git a/tests/web_2/static_var_no_initializer_test.dart b/tests/web_2/static_var_no_initializer_test.dart
deleted file mode 100644
index d03a2226029..00000000000
--- a/tests/web_2/static_var_no_initializer_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-int one;
-int x;
-
-void testOne() {
-  Expect.equals(1, one);
-}
-
-void testX(var expected) {
-  Expect.equals(expected, x);
-}
-
-void increaseX() {
-  x = x + 1;
-}
-
-void main() {
-  one = 1;
-  x = 5;
-  Expect.equals(1, one);
-  testOne();
-  Expect.equals(5, x);
-  testX(5);
-  x = x + 1;
-  Expect.equals(6, x);
-  testX(6);
-  increaseX();
-  Expect.equals(7, x);
-  testX(7);
-}
diff --git a/tests/web_2/static_var_test.dart b/tests/web_2/static_var_test.dart
deleted file mode 100644
index 56c2591c73e..00000000000
--- a/tests/web_2/static_var_test.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-int one = 1;
-int x = 5;
-
-void testOne() {
-  Expect.equals(1, one);
-}
-
-void testX(var expected) {
-  Expect.equals(expected, x);
-}
-
-void increaseX() {
-  x = x + 1;
-}
-
-void main() {
-  Expect.equals(1, one);
-  testOne();
-  Expect.equals(5, x);
-  testX(5);
-  x = x + 1;
-  Expect.equals(6, x);
-  testX(6);
-  increaseX();
-  Expect.equals(7, x);
-  testX(7);
-}
diff --git a/tests/web_2/string_escape_test.dart b/tests/web_2/string_escape_test.dart
deleted file mode 100644
index 0ee8d16e2ea..00000000000
--- a/tests/web_2/string_escape_test.dart
+++ /dev/null
@@ -1,150 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-// Test that string escapes work correctly.
-
-testSingleCharacterEscapes() {
-  List/*<String>*/ examples = [
-    "\b\f\n\r\t\v",
-    '\b\f\n\r\t\v',
-    """\b\f\n\r\t\v""",
-    '''\b\f\n\r\t\v''',
-  ];
-  List values = [8, 12, 10, 13, 9, 11];
-  for (String s in examples) {
-    Expect.equals(6, s.length);
-    for (int i = 0; i < 6; i++) {
-      Expect.equals(values[i], s.codeUnitAt(i));
-    }
-  }
-
-  // An escaped quote isn't part of a multiline end quote.
-  Expect.equals(r'"', """\"""");
-  Expect.equals(r"'", '''\'''');
-  Expect.equals(r'" "', """" \"""");
-  Expect.equals(r"' '", '''' \'''');
-  Expect.equals(r'"" ', """"" """);
-  Expect.equals(r"'' ", ''''' ''');
-}
-
-testXEscapes() {
-  var allBytes =
-      "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"
-      "\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"
-      "\x20\x21\x22\x23\x24\x25\x26\x27\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f"
-      "\x30\x31\x32\x33\x34\x35\x36\x37\x38\x39\x3a\x3b\x3c\x3d\x3e\x3f"
-      "\x40\x41\x42\x43\x44\x45\x46\x47\x48\x49\x4a\x4b\x4c\x4d\x4e\x4f"
-      "\x50\x51\x52\x53\x54\x55\x56\x57\x58\x59\x5a\x5b\x5c\x5d\x5e\x5f"
-      "\x60\x61\x62\x63\x64\x65\x66\x67\x68\x69\x6a\x6b\x6c\x6d\x6e\x6f"
-      "\x70\x71\x72\x73\x74\x75\x76\x77\x78\x79\x7a\x7b\x7c\x7d\x7e\x7f"
-      "\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f"
-      "\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f"
-      "\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf"
-      "\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf"
-      "\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf"
-      "\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf"
-      "\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef"
-      "\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff";
-  Expect.equals(256, allBytes.length);
-  for (int i = 0; i < 256; i++) {
-    Expect.equals(i, allBytes.codeUnitAt(i));
-  }
-}
-
-testUEscapes() {
-  List /*String*/ examples = [
-    "\u0000\u0001\u0022\u0027\u005c\u007f\u0080\u00ff"
-        "\u0100\u1000\ud7ff\ue000\uffff",
-    '\u0000\u0001\u0022\u0027\u005c\u007f\u0080\u00ff'
-        '\u0100\u1000\ud7ff\ue000\uffff',
-    """\u0000\u0001\u0022\u0027\u005c\u007f\u0080\u00ff"""
-        """\u0100\u1000\ud7ff\ue000\uffff""",
-    '''\u0000\u0001\u0022\u0027\u005c\u007f\u0080\u00ff'''
-        '''\u0100\u1000\ud7ff\ue000\uffff'''
-  ];
-  List/*<int>*/ values = [
-    0,
-    1,
-    0x22,
-    0x27,
-    0x5c,
-    0x7f,
-    0x80,
-    0xff,
-    0x100,
-    0x1000,
-    0xd7ff,
-    0xe000,
-    0xffff
-  ];
-  for (String s in examples) {
-    Expect.equals(values.length, s.length);
-    for (int i = 0; i < values.length; i++) {
-      Expect.equals(values[i], s.codeUnitAt(i));
-    }
-  }
-  // No characters above 0xffff until Leg supports that.
-  var long = "\u{0}\u{00}\u{000}\u{0000}\u{00000}\u{000000}"
-      "\u{1}\u{01}\u{001}\u{00001}"
-      "\u{ffff}\u{0ffff}\u{00ffff}";
-  var longValues = [0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0xffff, 0xffff, 0xffff];
-  Expect.equals(longValues.length, long.length);
-  for (int i = 0; i < longValues.length; i++) {
-    Expect.equals(longValues[i], long.codeUnitAt(i));
-  }
-}
-
-testIdentityEscapes() {
-  // All non-control ASCII characters escaped, except those with special
-  // meaning: b, f, n, r, t, u, v, and x (replaced by \x00).
-  var asciiLiterals =
-      "\ \!\"\#\$\%\&\'\(\)\*\+\,\-\.\/\0\1\2\3\4\5\6\7\8\9\:\;\<\=\>"
-      "\?\@\A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z\[\\\]"
-      "\^\_\`\a\x00\c\d\e\x00\g\h\i\j\k\l\m\x00\o\p\q\x00\s\x00\x00\x00"
-      "\w\x00\y\z\{\|\}\~\";
-
-  Expect.equals(128 - 32, asciiLiterals.length);
-  for (int i = 32; i < 128; i++) {
-    int code = asciiLiterals.codeUnitAt(i - 32);
-    if (code != 0) {
-      Expect.equals(i, code);
-    }
-  }
-}
-
-testQuotes() {
-  // The string [ "' ].
-  String bothQuotes = ' "' "' ";
-  Expect.equals(bothQuotes, " \"' ");
-  Expect.equals(bothQuotes, ' "\' ');
-  Expect.equals(bothQuotes, """ "' """);
-  Expect.equals(bothQuotes, ''' "' ''');
-  Expect.equals(bothQuotes, r""" "' """);
-  Expect.equals(bothQuotes, r''' "' ''');
-}
-
-testRawStrings() {
-  String raw1 = r'\x00';
-  Expect.equals(4, raw1.length);
-  Expect.equals(0x5c, raw1.codeUnitAt(0));
-}
-
-main() {
-  // Test \x??.
-  testXEscapes();
-  // Test \u???? and \u{?+}.
-  testUEscapes();
-  // Test \b, \f, \n, \r, \t, \v.
-  testSingleCharacterEscapes();
-  // Test all other single character (identity) escaeps.
-  testIdentityEscapes();
-  // Test that quotes are handled correctly.
-  testQuotes();
-  // Test that raw strings are raw.
-  testRawStrings();
-}
diff --git a/tests/web_2/string_interpolation_dynamic_test.dart b/tests/web_2/string_interpolation_dynamic_test.dart
deleted file mode 100644
index 304f024896d..00000000000
--- a/tests/web_2/string_interpolation_dynamic_test.dart
+++ /dev/null
@@ -1,138 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Note: This test relies on LF line endings in the source file.
-
-import "package:expect/expect.dart";
-import 'dart:math';
-
-// Test that String interpolation works in the code generated by the leg
-// compiler.
-
-bool get inscrutableFalse => new Random().nextDouble() > 2;
-
-inscrutable(x) => inscrutableFalse ? [] : x;
-
-int ifun() => 37;
-double dfun() => 2.71828;
-bool bfun() => true;
-String sfun() => "sfun";
-nfun() => null;
-
-void testEscapes() {
-  // Test that escaping the '$' prevents string interpolation.
-  String x = inscrutable("NOT HERE");
-  Expect.equals(r'a${x}', 'a\${x}');
-  Expect.equals(r'a$x', 'a\$x');
-  Expect.equals(r'a${x}', '''a\${x}''');
-  Expect.equals(r'a$x', '''a\$x''');
-  Expect.equals(r'a${x}', "a\${x}");
-  Expect.equals(r'a$x', "a\$x");
-  Expect.equals(r'a${x}', """a\${x}""");
-  Expect.equals(r'a$x', """a\$x""");
-}
-
-void testMultiLine() {
-  var a = inscrutable("string");
-  var b = inscrutable(42);
-  var c = inscrutable(3.1415);
-  var d = inscrutable(false);
-  var n = inscrutable(null);
-
-  Expect.equals("string423.1415falsenull!", """$a$b$c$d$n!""");
-  Expect.equals("string423.1415falsenull!", '''$a$b$c$d$n!''');
-  Expect.equals("string423.1415falsenull!", """${a}${b}${c}${d}${n}!""");
-  Expect.equals("string423.1415falsenull!", '''${a}${b}${c}${d}${n}!''');
-
-  // Quotes as literals are included correctly..
-  Expect.equals("'42''42'", """'$b''$b'""");
-  Expect.equals('"42""42"', '''"$b""$b"''');
-
-  Expect.equals('"42""42" ', """"$b""$b" """);
-  Expect.equals("'42''42' ", ''''$b''$b' ''');
-
-  Expect.equals('""42""42" ', """""$b""$b" """);
-  Expect.equals("''42''42' ", '''''$b''$b' ''');
-
-  // Newlines at beginning of multiline strings are not included, but only
-  // if they are in the source.
-  Expect.equals(
-      "\n",
-      """${''}
-""");
-  Expect.equals("\n", """${''}
""");
-  Expect.equals(
-      "\n",
-      """${''}
-""");
-  Expect.equals(
-      "x",
-      """
-x""");
-  Expect.equals("\n", """${'\n'}""");
-  Expect.equals("\r", """${'\r'}""");
-  Expect.equals("\r\n", """${'\r\n'}""");
-}
-
-void testSimple() {
-  var a = inscrutable("string");
-  var b = inscrutable(42);
-  var c = inscrutable(3.1415);
-  var d = inscrutable(false);
-  var n = inscrutable(null);
-
-  // Both kinds of quotes and both kinds of $-escapes.
-  Expect.equals("string423.1415falsenull!", "$a$b$c$d$n!");
-  Expect.equals("string423.1415falsenull!", '$a$b$c$d$n!');
-  Expect.equals("string423.1415falsenull!", "${a}${b}${c}${d}${n}!");
-  Expect.equals("string423.1415falsenull!", '${a}${b}${c}${d}${n}!');
-
-  // Different types for first expression.
-  Expect.equals("!string423.1415falsenull", "!$a$b$c$d$n");
-  Expect.equals("null!string423.1415false", "$n!$a$b$c$d");
-  Expect.equals("falsenull!string423.1415", "$d$n!$a$b$c");
-  Expect.equals("3.1415falsenull!string42", "$c$d$n!$a$b");
-  Expect.equals("423.1415falsenull!string", "$b$c$d$n!$a");
-
-  // Function calls as expressions.
-  Expect.equals(
-      "sfun372.71828truenull", "${sfun()}${ifun()}${dfun()}${bfun()}${nfun()}");
-  Expect.equals(
-      "nullsfun372.71828true", "${nfun()}${sfun()}${ifun()}${dfun()}${bfun()}");
-  Expect.equals(
-      "truenullsfun372.71828", "${bfun()}${nfun()}${sfun()}${ifun()}${dfun()}");
-  Expect.equals(
-      "2.71828truenullsfun37", "${dfun()}${bfun()}${nfun()}${sfun()}${ifun()}");
-  Expect.equals(
-      "372.71828truenullsfun", "${ifun()}${dfun()}${bfun()}${nfun()}${sfun()}");
-
-  // String contents around interpolated parts.
-  Expect.equals("stringstring", "$a$a");
-  Expect.equals("-stringstring", "-$a$a");
-  Expect.equals("string-string", "$a-$a");
-  Expect.equals("-string-string", "-$a-$a");
-  Expect.equals("stringstring-", "$a$a-");
-  Expect.equals("-stringstring-", "-$a$a-");
-  Expect.equals("string-string-", "$a-$a-");
-  Expect.equals("-string-string-", "-$a-$a-");
-
-  // Quotes as literals are included correctly..
-  Expect.equals("'42''42'", "'$b''$b'");
-  Expect.equals('"42""42"', '"$b""$b"');
-
-  // Nested string interpolation.
-  Expect.equals("string423.1415false", "${'${a}'}$b${'$c${d}'}");
-  // Quad-nested string interpolation.
-  Expect.equals("string423.1415false", "${'${a}${"${b}${'${c}${"$d"}'}"}'}");
-  // Lotsa-nested.
-  Expect.equals("42", "${'${"${'${"${'${"$b"}'}"}'}"}'}");
-}
-
-void main() {
-  testSimple();
-  testMultiLine();
-  testEscapes();
-}
diff --git a/tests/web_2/string_interpolation_opt1_test.dart b/tests/web_2/string_interpolation_opt1_test.dart
deleted file mode 100644
index 5ca963e77f0..00000000000
--- a/tests/web_2/string_interpolation_opt1_test.dart
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-import 'dart:math';
-
-// Test that String interpolation works in some optimized cases.
-
-bool get inscrutableFalse => new Random().nextDouble() > 2;
-
-returnsNullOrString(x) {
-  if (inscrutableFalse) return 'hi';
-  if (inscrutableFalse) return null;
-  return x;
-}
-
-returnsNullOrInt(x) {
-  if (inscrutableFalse) return 123;
-  if (inscrutableFalse) return null;
-  return x;
-}
-
-spoil(a) {
-  a[3] = 123;
-  a[4] = 'ddd';
-}
-
-void testString() {
-  var a = new List<dynamic>.filled(
-      100, null); // 'null' values in here are JavaScript undefined.
-  spoil(a);
-  var s = returnsNullOrString('hi');
-  var x = a[2];
-  if (x == null) {
-    s = returnsNullOrString(x);
-  }
-
-  Expect.equals('s: null', 's: $s');
-}
-
-void testInt() {
-  var a = new List<dynamic>.filled(
-      100, null); // 'null' values in here are JavaScript undefined.
-  spoil(a);
-  var s = returnsNullOrInt(123);
-  var x = a[2];
-  if (x == null) {
-    s = returnsNullOrInt(x);
-  }
-
-  Expect.equals('s: null', 's: $s');
-}
-
-void main() {
-  testInt();
-  testString();
-}
diff --git a/tests/web_2/string_interpolation_test.dart b/tests/web_2/string_interpolation_test.dart
deleted file mode 100644
index e6c95625608..00000000000
--- a/tests/web_2/string_interpolation_test.dart
+++ /dev/null
@@ -1,129 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Note: This test relies on LF line endings in the source file.
-
-import "package:expect/expect.dart";
-
-// Test that String interpolation works in the code generated by the leg
-// compiler.
-
-int ifun() => 37;
-double dfun() => 2.71828;
-bool bfun() => true;
-String sfun() => "sfun";
-nfun() => null;
-
-void testEscapes() {
-  // Test that escaping the '$' prevents string interpolation.
-  String x = "NOT HERE";
-  Expect.equals(r'a${x}', 'a\${x}');
-  Expect.equals(r'a$x', 'a\$x');
-  Expect.equals(r'a${x}', '''a\${x}''');
-  Expect.equals(r'a$x', '''a\$x''');
-  Expect.equals(r'a${x}', "a\${x}");
-  Expect.equals(r'a$x', "a\$x");
-  Expect.equals(r'a${x}', """a\${x}""");
-  Expect.equals(r'a$x', """a\$x""");
-}
-
-void testMultiLine() {
-  var a = "string";
-  var b = 42;
-  var c = 3.1415;
-  var d = false;
-  var n = null;
-
-  Expect.equals("string423.1415falsenull!", """$a$b$c$d$n!""");
-  Expect.equals("string423.1415falsenull!", '''$a$b$c$d$n!''');
-  Expect.equals("string423.1415falsenull!", """${a}${b}${c}${d}${n}!""");
-  Expect.equals("string423.1415falsenull!", '''${a}${b}${c}${d}${n}!''');
-
-  // Quotes as literals are included correctly..
-  Expect.equals("'42''42'", """'$b''$b'""");
-  Expect.equals('"42""42"', '''"$b""$b"''');
-
-  Expect.equals('"42""42" ', """"$b""$b" """);
-  Expect.equals("'42''42' ", ''''$b''$b' ''');
-
-  Expect.equals('""42""42" ', """""$b""$b" """);
-  Expect.equals("''42''42' ", '''''$b''$b' ''');
-
-  // Newlines at beginning of multiline strings are not included, but only
-  // if they are in the source.
-  Expect.equals(
-      "\n",
-      """${''}
-""");
-  Expect.equals("\n", """${''}
""");
-  Expect.equals(
-      "\n",
-      """${''}
-""");
-  Expect.equals("\n", """${'\n'}""");
-  Expect.equals("\r", """${'\r'}""");
-  Expect.equals("\r\n", """${'\r\n'}""");
-}
-
-void testSimple() {
-  var a = "string";
-  var b = 42;
-  var c = 3.1415;
-  var d = false;
-  var n = null;
-
-  // Both kinds of quotes and both kinds of $-escapes.
-  Expect.equals("string423.1415falsenull!", "$a$b$c$d$n!");
-  Expect.equals("string423.1415falsenull!", '$a$b$c$d$n!');
-  Expect.equals("string423.1415falsenull!", "${a}${b}${c}${d}${n}!");
-  Expect.equals("string423.1415falsenull!", '${a}${b}${c}${d}${n}!');
-
-  // Different types for first expression.
-  Expect.equals("!string423.1415falsenull", "!$a$b$c$d$n");
-  Expect.equals("null!string423.1415false", "$n!$a$b$c$d");
-  Expect.equals("falsenull!string423.1415", "$d$n!$a$b$c");
-  Expect.equals("3.1415falsenull!string42", "$c$d$n!$a$b");
-  Expect.equals("423.1415falsenull!string", "$b$c$d$n!$a");
-
-  // Function calls as expressions.
-  Expect.equals(
-      "sfun372.71828truenull", "${sfun()}${ifun()}${dfun()}${bfun()}${nfun()}");
-  Expect.equals(
-      "nullsfun372.71828true", "${nfun()}${sfun()}${ifun()}${dfun()}${bfun()}");
-  Expect.equals(
-      "truenullsfun372.71828", "${bfun()}${nfun()}${sfun()}${ifun()}${dfun()}");
-  Expect.equals(
-      "2.71828truenullsfun37", "${dfun()}${bfun()}${nfun()}${sfun()}${ifun()}");
-  Expect.equals(
-      "372.71828truenullsfun", "${ifun()}${dfun()}${bfun()}${nfun()}${sfun()}");
-
-  // String contents around interpolated parts.
-  Expect.equals("stringstring", "$a$a");
-  Expect.equals("-stringstring", "-$a$a");
-  Expect.equals("string-string", "$a-$a");
-  Expect.equals("-string-string", "-$a-$a");
-  Expect.equals("stringstring-", "$a$a-");
-  Expect.equals("-stringstring-", "-$a$a-");
-  Expect.equals("string-string-", "$a-$a-");
-  Expect.equals("-string-string-", "-$a-$a-");
-
-  // Quotes as literals are included correctly..
-  Expect.equals("'42''42'", "'$b''$b'");
-  Expect.equals('"42""42"', '"$b""$b"');
-
-  // Nested string interpolation.
-  Expect.equals("string423.1415false", "${'${a}'}$b${'$c${d}'}");
-  // Quad-nested string interpolation.
-  Expect.equals("string423.1415false", "${'${a}${"${b}${'${c}${"$d"}'}"}'}");
-  // Lotsa-nested.
-  Expect.equals("42", "${'${"${'${"${'${"$b"}'}"}'}"}'}");
-}
-
-void main() {
-  testSimple();
-  testMultiLine();
-  testEscapes();
-}
diff --git a/tests/web_2/super_call_test.dart b/tests/web_2/super_call_test.dart
deleted file mode 100644
index a5b46daed33..00000000000
--- a/tests/web_2/super_call_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {
-  foo() => "A.foo${baz()}";
-  baz() => "A.baz";
-  hest(String s, int i) => "$s$i";
-}
-
-class B extends A {
-  foo() => "B.foo${super.foo()}";
-  baz() => "B.baz";
-  hest(s, i) => "B.hest${super.hest(s, i)}";
-}
-
-main() {
-  B b = new B();
-  Expect.equals("B.fooA.fooB.baz", b.foo());
-  Expect.equals("B.hestfisk42", b.hest('fisk', 42));
-}
diff --git a/tests/web_2/super_constructor1_test.dart b/tests/web_2/super_constructor1_test.dart
deleted file mode 100644
index 8c5a760ffeb..00000000000
--- a/tests/web_2/super_constructor1_test.dart
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-String message;
-
-class A {
-  int x;
-  A(i) : x = i {
-    message = '${message}A($i)';
-  }
-}
-
-class B extends A {
-  int y;
-  B(i)
-      : y = i++,
-        super(i + 5) {
-    message = '${message}B($i)';
-  }
-}
-
-class C extends B {
-  var z;
-  C(i)
-      : z = i,
-        super(i * 3) {
-    message = '${message}C($i)';
-  }
-}
-
-main() {
-  message = '';
-  var c = new C(7);
-  Expect.equals(27, c.x);
-  Expect.equals(21, c.y);
-  Expect.equals(7, c.z);
-  Expect.equals('A(27)B(22)C(7)', message);
-}
diff --git a/tests/web_2/super_constructor2_test.dart b/tests/web_2/super_constructor2_test.dart
deleted file mode 100644
index 8fbe812f551..00000000000
--- a/tests/web_2/super_constructor2_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {
-  int x;
-  A() : x = 27;
-}
-
-class B extends A {
-  B();
-}
-
-class C extends A {}
-
-main() {
-  A a = new B();
-  Expect.equals(27, a.x);
-  a = new C();
-  Expect.equals(27, a.x);
-}
diff --git a/tests/web_2/supermixin/supermixin10_test.dart b/tests/web_2/supermixin/supermixin10_test.dart
deleted file mode 100644
index f0ac9153909..00000000000
--- a/tests/web_2/supermixin/supermixin10_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class SuperA {
-  method1(a) => 'A$a';
-}
-
-class SuperB extends SuperA {
-  method1(a) => 'B$a';
-}
-
-mixin Mixin on SuperA {
-  method1(a) => super.method1('M$a');
-  method2(a) => 'M$a';
-}
-
-class Class extends SuperB with Mixin {}
-
-main() {
-  var c = new Class();
-  Expect.equals("BMC", c.method1('C'));
-  Expect.equals("MC", c.method2('C'));
-}
diff --git a/tests/web_2/supermixin/supermixin11_test.dart b/tests/web_2/supermixin/supermixin11_test.dart
deleted file mode 100644
index 538391fa46e..00000000000
--- a/tests/web_2/supermixin/supermixin11_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class SuperA1 {
-  method1(a) => 'A1.m1$a';
-}
-
-class SuperA2 {
-  method2(a) => 'A2.m2$a';
-}
-
-class SuperA {
-  method1(a) => 'A.m1$a';
-  method2(a) => 'A.m2$a';
-}
-
-class SuperB1 extends SuperA implements SuperA1 {
-  method1(a) => 'B1.m1$a';
-}
-
-class SuperB2 extends SuperB1 implements SuperA2 {
-  method2(a) => 'B2.m2$a';
-}
-
-mixin Mixin on SuperA1, SuperA2 {
-  method1(a) => super.method1('M$a');
-  method2(a) => super.method2('M$a');
-}
-
-class Class extends SuperB2 with Mixin {}
-
-main() {
-  var c = new Class();
-  Expect.equals("B1.m1MC", c.method1('C'));
-  Expect.equals("B2.m2MC", c.method2('C'));
-}
diff --git a/tests/web_2/supermixin/supermixin12_test.dart b/tests/web_2/supermixin/supermixin12_test.dart
deleted file mode 100644
index 276555764a7..00000000000
--- a/tests/web_2/supermixin/supermixin12_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class SuperA {
-  method(a, [b = 'foo']) => 'A$a$b';
-}
-
-class SuperB extends SuperA {
-  method(a, [b = 'foo']) => 'B$a$b';
-}
-
-mixin Mixin on SuperA {
-  method2(a) => super.method('M$a');
-}
-
-class Class extends SuperB with Mixin {}
-
-main() {
-  var c = new Class();
-  Expect.equals("BMCfoo", c.method2('C'));
-}
diff --git a/tests/web_2/supermixin/supermixin13_test.dart b/tests/web_2/supermixin/supermixin13_test.dart
deleted file mode 100644
index 99311fe1173..00000000000
--- a/tests/web_2/supermixin/supermixin13_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class SuperA {
-  method(a) => 'A$a';
-}
-
-class SuperB extends SuperA {
-  method(a, [b = 'foo']) => 'B$a$b';
-}
-
-mixin Mixin on SuperA {
-  method2(a) => super.method('M$a');
-}
-
-class Class extends SuperB with Mixin {}
-
-main() {
-  var c = new Class();
-  Expect.equals("BMCfoo", c.method2('C'));
-}
diff --git a/tests/web_2/supermixin/supermixin14_test.dart b/tests/web_2/supermixin/supermixin14_test.dart
deleted file mode 100644
index 4e105770f0b..00000000000
--- a/tests/web_2/supermixin/supermixin14_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class SuperA {
-  method(a) => 'A$a';
-}
-
-class SuperB implements SuperA {
-  method(a) => 'B$a';
-}
-
-mixin Mixin on SuperA {
-  method(a) => super.method('M$a');
-}
-
-class Class extends SuperB with Mixin {}
-
-main() {
-  var c = new Class();
-  Expect.equals("BMC", c.method('C'));
-} 
\ No newline at end of file
diff --git a/tests/web_2/supermixin/supermixin15_test.dart b/tests/web_2/supermixin/supermixin15_test.dart
deleted file mode 100644
index 006d1c99136..00000000000
--- a/tests/web_2/supermixin/supermixin15_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class SuperA {
-  method(a) => 'A$a';
-}
-
-class SuperB extends SuperA {
-  method(a) => 'B$a';
-}
-
-mixin Mixin on SuperA {
-  method(a) => super.method('M$a');
-}
-
-class Class extends SuperB with Mixin {}
-
-main() {
-  var c = new Class();
-  Expect.equals("BMC", c.method('C'));
-} 
\ No newline at end of file
diff --git a/tests/web_2/supermixin/supermixin16_test.dart b/tests/web_2/supermixin/supermixin16_test.dart
deleted file mode 100644
index 612990e2ac2..00000000000
--- a/tests/web_2/supermixin/supermixin16_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class SuperA1 {}
-
-class SuperA2 {}
-
-class InterfaceA {}
-
-mixin MixinA on SuperA1, SuperA2 implements InterfaceA {}
-
-class SuperB1<T> {}
-
-class SuperB2<T> {}
-
-class SuperB3<T> {}
-
-class InterfaceB<T> {}
-
-mixin MixinB<T> on SuperB1<List<T>>, SuperB2<int>, SuperB3<T>
-    implements InterfaceB<Map<int, T>> {}
-
-class C extends SuperA1 with SuperA2 {}
-
-main() {
-  var listA = <MixinA>[];
-  Expect.isTrue(listA is List<MixinA>);
-  Expect.isTrue(listA is List<SuperA1>);
-  Expect.isTrue(listA is List<SuperA2>);
-  Expect.isTrue(listA is List<InterfaceA>);
-
-  var listB = <MixinB<String>>[];
-  Expect.isTrue(listB is List<MixinB<String>>);
-  Expect.isTrue(listB is List<SuperB1<List<String>>>);
-  Expect.isTrue(listB is List<SuperB2<int>>);
-  Expect.isTrue(listB is List<SuperB3<String>>);
-  Expect.isTrue(listB is List<InterfaceB<Map<int, String>>>);
-
-} 
\ No newline at end of file
diff --git a/tests/web_2/supermixin/supermixin17_test.dart b/tests/web_2/supermixin/supermixin17_test.dart
deleted file mode 100644
index f85910c0ab1..00000000000
--- a/tests/web_2/supermixin/supermixin17_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class S {}
-
-class M {}
-
-class SuperC = S with M;
-
-class SuperA {}
-
-class SuperB extends SuperA implements SuperC {}
-
-mixin Mixin on SuperC, SuperA {}
-
-class Class extends SuperB with Mixin {}
-
-@pragma('dart2js:assumeDynamic')
-@pragma('dart2js:noInline')
-test(c) {
-  Expect.isTrue(c is Mixin, "Unexpected result for $c is Mixin");
-  Expect.isTrue(c is SuperC, "Unexpected result for $c is SuperC");
-  Expect.isTrue(c is SuperA, "Unexpected result for $c is SuperA");
-  Expect.isTrue(c is S, "Unexpected result for $c is S");
-  Expect.isTrue(c is M, "Unexpected result for $c is M");
-}
-
-main() {
-  new SuperC();
-  test(new Class());
-}
diff --git a/tests/web_2/supermixin/supermixin18_test.dart b/tests/web_2/supermixin/supermixin18_test.dart
deleted file mode 100644
index bd5219589de..00000000000
--- a/tests/web_2/supermixin/supermixin18_test.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class S {}
-
-class M {}
-
-class SuperC = S with M;
-
-class SuperA {}
-
-class SuperB extends SuperA implements SuperC {}
-
-mixin Mixin on SuperA, SuperC {}
-
-class Class extends SuperB with Mixin {}
-
-@pragma('dart2js:assumeDynamic')
-@pragma('dart2js:noInline')
-test(c) {
-  Expect.isTrue(c is Mixin, "Unexpected result for $c is Mixin");
-  Expect.isTrue(c is SuperC, "Unexpected result for $c is SuperC");
-  Expect.isTrue(c is SuperA, "Unexpected result for $c is SuperA");
-  Expect.isTrue(c is S, "Unexpected result for $c is S");
-  Expect.isTrue(c is M, "Unexpected result for $c is M");
-}
-
-main() {
-  new SuperC();
-  test(new Class());
-}
diff --git a/tests/web_2/supermixin/supermixin1_test.dart b/tests/web_2/supermixin/supermixin1_test.dart
deleted file mode 100644
index 23fb6befa48..00000000000
--- a/tests/web_2/supermixin/supermixin1_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class SuperA {
-  method(a) => 'A$a';
-}
-
-class SuperB extends SuperA {
-  method(a) => 'B$a';
-}
-
-mixin Mixin on SuperA {
-  method(a) => super.method('M$a');
-}
-
-class Class extends SuperB with Mixin {}
-
-main() {
-  var c = new Class();
-  Expect.equals("BMC", c.method('C'));
-}
diff --git a/tests/web_2/supermixin/supermixin2_test.dart b/tests/web_2/supermixin/supermixin2_test.dart
deleted file mode 100644
index edf6d4af880..00000000000
--- a/tests/web_2/supermixin/supermixin2_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class SuperA {
-  method(a) => 'A$a';
-}
-
-class SuperB extends SuperA {
-  method(a) => 'B$a';
-}
-
-mixin Mixin on SuperA {
-  method(a) => super.method('M$a');
-}
-
-class Class = SuperB with Mixin;
-
-main() {
-  var c = new Class();
-  Expect.equals("BMC", c.method('C'));
-}
diff --git a/tests/web_2/supermixin/supermixin3_test.dart b/tests/web_2/supermixin/supermixin3_test.dart
deleted file mode 100644
index f5d2ac5367a..00000000000
--- a/tests/web_2/supermixin/supermixin3_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class SuperA {
-  get getter => 'A';
-}
-
-class SuperB extends SuperA {
-  get getter => 'B';
-}
-
-mixin Mixin on SuperA {
-  get getter => super.getter;
-}
-
-class Class extends SuperB with Mixin {}
-
-main() {
-  var c = new Class();
-  Expect.equals("B", c.getter);
-}
diff --git a/tests/web_2/supermixin/supermixin4_test.dart b/tests/web_2/supermixin/supermixin4_test.dart
deleted file mode 100644
index 0f9e4187b98..00000000000
--- a/tests/web_2/supermixin/supermixin4_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class SuperA {
-  get getter => 'A';
-}
-
-class SuperB extends SuperA {
-  get getter => 'B';
-}
-
-mixin Mixin on SuperA {
-  get getter => super.getter;
-}
-
-class Class = SuperB with Mixin;
-
-main() {
-  var c = new Class();
-  Expect.equals("B", c.getter);
-}
diff --git a/tests/web_2/supermixin/supermixin5_test.dart b/tests/web_2/supermixin/supermixin5_test.dart
deleted file mode 100644
index 316ab8d29aa..00000000000
--- a/tests/web_2/supermixin/supermixin5_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class SuperA {
-  int field = 0;
-
-  set setter(int a) => field = a;
-}
-
-class SuperB extends SuperA {
-  set setter(int a) => field = a + 1;
-}
-
-mixin Mixin on SuperA {
-  set setter(int a) => super.setter = a;
-}
-
-class Class extends SuperB with Mixin {}
-
-main() {
-  var c = new Class();
-  c.setter = 41;
-  Expect.equals(42, c.field);
-}
diff --git a/tests/web_2/supermixin/supermixin6_test.dart b/tests/web_2/supermixin/supermixin6_test.dart
deleted file mode 100644
index 1d94b581eb5..00000000000
--- a/tests/web_2/supermixin/supermixin6_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class SuperA {
-  int field = 0;
-
-  set setter(int a) => field = a;
-}
-
-class SuperB extends SuperA {
-  set setter(int a) => field = a + 1;
-}
-
-mixin Mixin on SuperA {
-  set setter(int a) => super.setter = a;
-}
-
-class Class = SuperB with Mixin;
-
-main() {
-  var c = new Class();
-  c.setter = 41;
-  Expect.equals(42, c.field);
-}
diff --git a/tests/web_2/supermixin/supermixin7_test.dart b/tests/web_2/supermixin/supermixin7_test.dart
deleted file mode 100644
index b9ab301eff7..00000000000
--- a/tests/web_2/supermixin/supermixin7_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class SuperA<T> {
-  method() => null;
-}
-
-class SuperB<T> extends SuperA<T> {
-  method() => T;
-}
-
-mixin Mixin<T> on SuperA<T> {
-  method() => super.method();
-}
-
-class Class<T> extends SuperB<T> with Mixin<T> {}
-
-main() {
-  var c1 = new Class<String>();
-  var c2 = new Class<int>();
-  Expect.equals(String, c1.method());
-  Expect.equals(int, c2.method());
-}
diff --git a/tests/web_2/supermixin/supermixin8_test.dart b/tests/web_2/supermixin/supermixin8_test.dart
deleted file mode 100644
index b93aac6e7b2..00000000000
--- a/tests/web_2/supermixin/supermixin8_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class SuperA<T, S> {
-  method() => T;
-}
-
-class SuperB<T, S> extends SuperA<T, S> {
-  method() => S;
-}
-
-mixin Mixin<T, S> on SuperA<T, S> {
-  method() => super.method();
-}
-
-class Class<T, S> extends SuperB<T, S> with Mixin<T, S> {}
-
-main() {
-  var c1 = new Class<int, String>();
-  var c2 = new Class<String, int>();
-  Expect.equals(String, c1.method());
-  Expect.equals(int, c2.method());
-}
diff --git a/tests/web_2/supermixin/supermixin9_test.dart b/tests/web_2/supermixin/supermixin9_test.dart
deleted file mode 100644
index 24c6b123e0d..00000000000
--- a/tests/web_2/supermixin/supermixin9_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'package:expect/expect.dart';
-
-class SuperA<T> {
-  method() => T;
-}
-
-class SuperB extends SuperA<int> {
-  method() => String;
-}
-
-mixin Mixin<T> on SuperA<T> {
-  method() => super.method();
-}
-
-class Class extends SuperB with Mixin<int> {}
-
-main() {
-  var c = new Class();
-  Expect.equals(String, c.method());
-}
diff --git a/tests/web_2/switch_equals_test.dart b/tests/web_2/switch_equals_test.dart
deleted file mode 100644
index b628863f876..00000000000
--- a/tests/web_2/switch_equals_test.dart
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-class SuperClass {
-  const SuperClass();
-
-  bool operator ==(Object other);
-}
-
-class Class extends SuperClass {
-  const Class();
-
-  bool operator ==(Object other);
-}
-
-class SubClass extends Class {
-  const SubClass();
-
-  bool operator ==(Object other) => false;
-}
-
-main() {
-  // This test verifies that when overriding `==` it is a compile time error to
-  // use that class as a key in a switch, but only if the override provides a
-  // body. However, with NNBD, all of these switches became compile time errors
-  // so now we cast `null` as `dynamic` to get these first two switches past
-  // the compiler.
-  switch (null as dynamic) {
-    case const SuperClass():
-      break;
-    default:
-  }
-  switch (null as dynamic) {
-    case const Class():
-      break;
-    default:
-  }
-  switch (null as dynamic) {
-    case const SubClass(): //# 01: compile-time error
-      break; //# 01: continued
-    default:
-  }
-  switch (null) {
-    case null:
-      break;
-    default:
-  }
-}
diff --git a/tests/web_2/switch_test.dart b/tests/web_2/switch_test.dart
deleted file mode 100644
index 517d4ebe095..00000000000
--- a/tests/web_2/switch_test.dart
+++ /dev/null
@@ -1,145 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-switcher(val) {
-  var x = 0;
-  switch (val) {
-    case 1:
-      x = 100;
-      break;
-    case 2:
-      x = 200;
-      break;
-    case 3:
-      x = 300;
-      break;
-    default:
-      return 400;
-      break; // Intentional dead code (regression test for crash).
-  }
-  return x;
-}
-
-// Check unambiguated grammar allowing multiple labels per case/default.
-switcher2(val) {
-  var x = 0;
-  switch (val) {
-    foo:
-    bar:
-    case 1:
-    baz:
-    case 2:
-      fez:
-      {
-        x = 100;
-        break fez;
-      }
-      break;
-    hest:
-    fisk:
-    case 3:
-    case 4:
-    svin:
-    default:
-      barber:
-      {
-        if (val > 2) {
-          x = 200;
-          break;
-        } else {
-          // Enable when continue to switch-case is implemented.
-          continue hest;
-        }
-      }
-  }
-  return x;
-}
-
-var x = 0;
-
-@pragma('dart2js:noInline')
-switcher3(val) {
-  switch (val) {
-    case 1:
-    default:
-      incrementX();
-  }
-}
-
-// Tests that switch cases work when there is a case that calls a function
-// that always throws, and there is no break in the switch statement.
-switcher4(val) {
-  switch (val) {
-    case 1:
-      return 100;
-    case 2: _throw(); //# 00: compile-time error
-    case 3:
-      _throw();
-      break;
-    default:
-      return 300;
-  }
-}
-
-_throw() {
-  throw 'exception';
-}
-
-// Tests that we generate a break after the last case if it isn't default.
-switcher5(val) {
-  var x = 0;
-  switch(val) {
-    case 1:
-      return 100;
-    case 2:
-      return 200;
-    case 3:
-      x = 300;
-  }
-  return x;
-}
-
-incrementX() {
-  x++;
-}
-
-badswitches(val) {
-  // Test some badly formed switch bodies.
-  // 01 - a label/statement without a following case/default.
-  // 02 - a label without a following case/default or statement.
-  switch (val) {
-    foo: break; //    //# 01: compile-time error
-    case 2: //        //# 02: compile-time error
-    foo: //           //# 02: continued
-  }
-}
-
-main() {
-  Expect.equals(100, switcher(1));
-  Expect.equals(200, switcher(2));
-  Expect.equals(300, switcher(3));
-  Expect.equals(400, switcher(4));
-
-  Expect.equals(100, switcher2(1));
-  Expect.equals(100, switcher2(2));
-  Expect.equals(200, switcher2(3));
-  Expect.equals(200, switcher2(4));
-  Expect.equals(200, switcher2(5));
-
-
-  switcher3(1);
-  Expect.equals(1, x);
-
-  Expect.equals(100, switcher4(1));
-
-  Expect.equals(100, switcher5(1));
-  Expect.equals(200, switcher5(2));
-  Expect.equals(300, switcher5(3));
-
-  badswitches(42);
-}
diff --git a/tests/web_2/sync_star_element_rti_need_test.dart b/tests/web_2/sync_star_element_rti_need_test.dart
deleted file mode 100644
index b532eaa6f52..00000000000
--- a/tests/web_2/sync_star_element_rti_need_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.9
-
-import "package:expect/expect.dart";
-
-main() {
-  var x = [1, 2, 3];
-  Expect.listEquals(x, nop(x).toList());
-}
-
-Iterable<T> nop<T>(Iterable<T> values) {
-  Iterable<T> inner() sync* {
-    yield* values;
-    return;
-  }
-
-  return inner();
-}
diff --git a/tests/web_2/tear_off_types_test.dart b/tests/web_2/tear_off_types_test.dart
deleted file mode 100644
index 59aef28017f..00000000000
--- a/tests/web_2/tear_off_types_test.dart
+++ /dev/null
@@ -1,145 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--omit-implicit-checks
-
-import 'package:expect/expect.dart';
-
-main() {
-  test1();
-  test2();
-  test3();
-  test4();
-  test5();
-  test6();
-  test7();
-}
-
-class A1<T> {}
-
-class B1 extends A1<int> {}
-
-@pragma('dart2js:noInline')
-test1() {
-  Expect.isTrue(_test1(method1a));
-  Expect.isTrue(_test1(method1b));
-  Expect.isFalse(_test1(method1c));
-}
-
-B1 method1a() => null;
-A1<int> method1b() => null;
-A1<String> method1c() => null;
-
-@pragma('dart2js:noInline')
-bool _test1(f) => f is A1<int> Function();
-
-class A2<T> {}
-
-class B2 extends A2<int> {}
-
-@pragma('dart2js:noInline')
-test2() {
-  Expect.isFalse(_test2(method2a));
-  Expect.isTrue(_test2(method2b));
-  Expect.isFalse(_test2(method2c));
-}
-
-void method2a(B2 b) {}
-void method2b(A2<int> a) {}
-void method2c(A2<String> a) {}
-
-@pragma('dart2js:noInline')
-bool _test2(f) => f is void Function(A2<int>);
-
-class A3<T> {}
-
-class B3 extends A3<int> {}
-
-@pragma('dart3js:noInline')
-test3() {
-  Expect.isTrue(_test3(method3a));
-  Expect.isTrue(_test3(method3b));
-  Expect.isFalse(_test3(method3c));
-}
-
-void method3a(B3 b) {}
-void method3b(A3<int> a) {}
-void method3c(A3<String> a) {}
-
-@pragma('dart3js:noInline')
-_test3(f) => f is void Function(B3);
-
-class A4<T> {}
-
-class B4 extends A4<int> {}
-
-@pragma('dart4js:noInline')
-test4() {
-  Expect.isTrue(_test4(method4a));
-  Expect.isFalse(_test4(method4b));
-  Expect.isFalse(_test4(method4c));
-}
-
-B4 method4a() => null;
-A4<int> method4b() => null;
-A4<String> method4c() => null;
-
-@pragma('dart4js:noInline')
-_test4(f) => f is B4 Function();
-
-class A5<T> {}
-
-class B5 extends A5<int> {}
-
-@pragma('dart2js:noInline')
-test5() {
-  Expect.isTrue(_test5(method5a));
-  Expect.isTrue(_test5(method5b));
-  Expect.isFalse(_test5(method5c));
-}
-
-void method5a(void Function(B5) f) => null;
-void method5b(void Function(A5<int>) f) => null;
-void method5c(void Function(A5<String>) f) => null;
-
-@pragma('dart2js:noInline')
-bool _test5(f) => f is void Function(void Function(A5<int>));
-
-class A6<T> {}
-
-class B6 extends A6<int> {}
-
-@pragma('dart6js:noInline')
-test6() {
-  Expect.isTrue(_test6(method6a));
-  Expect.isTrue(_test6(method6b));
-  Expect.isFalse(_test6(method6c));
-}
-
-void Function(B6) method6a() => null;
-void Function(A6<int>) method6b() => null;
-void Function(A6<String>) method6c() => null;
-
-@pragma('dart6js:noInline')
-_test6(f) => f is void Function(B6) Function();
-
-class A7<T> {}
-
-class B7 extends A7<int> {}
-
-@pragma('dart7js:noInline')
-test7() {
-  Expect.isTrue(_test7(method7a));
-  Expect.isFalse(_test7(method7b));
-  Expect.isFalse(_test7(method7c));
-}
-
-void method7a(void Function(B7) f) => null;
-void method7b(void Function(A7<int>) f) => null;
-void method7c(void Function(A7<String>) f) => null;
-
-@pragma('dart7js:noInline')
-_test7(f) => f is void Function(void Function(B7));
diff --git a/tests/web_2/this_phi_elimination_test.dart b/tests/web_2/this_phi_elimination_test.dart
deleted file mode 100644
index 95679f826ee..00000000000
--- a/tests/web_2/this_phi_elimination_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {
-  foo(a) {
-    while (false) {
-      // This call will make the builder want to put [this] as a phi.
-      foo(0);
-    }
-    // This computation makes sure there will be a bailout version.
-    return a + 42;
-  }
-}
-
-main() {
-  Expect.equals(42, new A().foo(0));
-  Expect.throws(() => new A().foo(""));
-}
diff --git a/tests/web_2/this_redirecting_constructor_test.dart b/tests/web_2/this_redirecting_constructor_test.dart
deleted file mode 100644
index 32a5fce40b2..00000000000
--- a/tests/web_2/this_redirecting_constructor_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-// Confirm that redirecting named constructors are properly resolved.
-//
-// Note that this test may become invalid due to http://dartbug.com/5940.
-
-class C {
-  var x;
-  C() {
-    x = 1;
-  }
-  C.C() {
-    x = 2;
-  }
-  C.redirecting() : this.C();
-}
-
-main() {
-  var c = new C.redirecting();
-  Expect.equals(c.x, 2);
-}
diff --git a/tests/web_2/this_test.dart b/tests/web_2/this_test.dart
deleted file mode 100644
index 3bc167adce5..00000000000
--- a/tests/web_2/this_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class A {
-  int x;
-  getX() => this.x;
-  setX(val) {
-    this.x = val;
-  }
-}
-
-main() {
-  A a = new A();
-  a.setX(42);
-  Expect.equals(42, a.getX());
-}
diff --git a/tests/web_2/throw1_test.dart b/tests/web_2/throw1_test.dart
deleted file mode 100644
index aa79f9f772c..00000000000
--- a/tests/web_2/throw1_test.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-void main() {
-  throw "foo"; // //# 01: runtime error
-}
diff --git a/tests/web_2/throw2_test.dart b/tests/web_2/throw2_test.dart
deleted file mode 100644
index 89c7c45b8da..00000000000
--- a/tests/web_2/throw2_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-void throw1() {
-  throw "foo";
-}
-
-void throw2() {
-  if (true) throw "foo";
-}
-
-void throw3() {
-  if (false) {
-    print("argh");
-  } else {
-    throw "foo";
-  }
-}
-
-void throw4() {
-  if (true) {
-    throw "foo";
-  } else {
-    throw "bar";
-  }
-}
-
-void nonThrow5() {
-  if (false) throw "foo";
-}
-
-void main() {
-  throw1(); // //# 01: runtime error
-  throw2(); // //# 02: runtime error
-  throw3(); // //# 03: runtime error
-  throw4(); // //# 04: runtime error
-  nonThrow5();
-}
diff --git a/tests/web_2/timer_test.dart b/tests/web_2/timer_test.dart
deleted file mode 100644
index 578b5b345f6..00000000000
--- a/tests/web_2/timer_test.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'dart:async';
-import 'dart:isolate';
-
-import 'async_helper.dart';
-
-void test(void onDone(bool success)) {
-  Duration ms = const Duration(milliseconds: 1);
-  int expected = 4;
-
-  void timerCallback() {
-    if (--expected == 0) onDone(true);
-  }
-
-  new Timer(ms * 0, timerCallback);
-  new Timer(ms * 10, timerCallback);
-  new Timer(ms * 100, timerCallback);
-  new Timer(ms * 1000, timerCallback);
-}
-
-main() {
-  asyncTest(test);
-}
diff --git a/tests/web_2/to_string_test.dart b/tests/web_2/to_string_test.dart
deleted file mode 100644
index 586c88f1f8f..00000000000
--- a/tests/web_2/to_string_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-// dart2jsOptions=--no-minify
-
-import "package:expect/expect.dart";
-
-class A extends Object {}
-
-class Concater {
-  final x;
-  final y;
-  Concater(x, y)
-      : this.x = x,
-        this.y = y;
-  add() => x + y.toString();
-}
-
-test(expected, x) {
-  Expect.equals(expected, x.toString());
-  Expect.equals(expected, new Concater("", x).add());
-}
-
-main() {
-  test("Instance of 'Object'", new Object());
-  test("Instance of 'A'", new A());
-  test("[]", []);
-  test("1", 1);
-}
diff --git a/tests/web_2/truncation_errors_test.dart b/tests/web_2/truncation_errors_test.dart
deleted file mode 100644
index a4b24f7dd3a..00000000000
--- a/tests/web_2/truncation_errors_test.dart
+++ /dev/null
@@ -1,94 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Check that exception messages for truncating operations contains the
-// operands.
-
-import 'package:expect/expect.dart';
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-void find1(expected, thunk) {
-  if (thunk == null) return;
-  var returned, exceptionText;
-  try {
-    returned = thunk();
-  } catch (e) {
-    exceptionText = '$e';
-  }
-  if (exceptionText == null) {
-    Expect.fail(
-        'Expected exception containing "$expected", returned: $returned');
-  }
-  Expect.isTrue(exceptionText.contains(expected),
-      'Expected "$expected" in "$exceptionText"');
-}
-
-void find(expected, [thunk1, thunk2, thunk3, thunk4]) {
-  find1(expected, thunk1);
-  find1(expected, thunk2);
-  find1(expected, thunk3);
-  find1(expected, thunk4);
-}
-
-main() {
-  var NaN = double.nan;
-  var Infinity = double.infinity;
-
-  find(' Infinity: 123 ~/ 0', () => confuse(123) ~/ confuse(0),
-      () => confuse(123) ~/ 0, () => 123 ~/ confuse(0), () => 123 ~/ 0);
-
-  find(
-      '-Infinity: 123 ~/ -0.0',
-      () => confuse(123) ~/ confuse(-0.0),
-      () => confuse(123) ~/ -0.0,
-      () => 123 ~/ confuse(-0.0),
-      () => 123 ~/ -0.0);
-
-  find(' NaN: NaN ~/ 123', () => confuse(NaN) ~/ confuse(123),
-      () => confuse(NaN) ~/ 123, () => NaN ~/ confuse(123), () => NaN ~/ 123);
-
-  find(
-      ' Infinity: 1e+200 ~/ 1e-200',
-      () => confuse(1e200) ~/ confuse(1e-200),
-      () => confuse(1e200) ~/ 1e-200,
-      () => 1e200 ~/ confuse(1e-200),
-      () => 1e200 ~/ 1e-200);
-
-  find('NaN.toInt()', () => confuse(NaN).toInt(), () => NaN.toInt());
-  find(' Infinity.toInt()', () => confuse(Infinity).toInt(),
-      () => Infinity.toInt());
-  find('-Infinity.toInt()', () => confuse(-Infinity).toInt(),
-      () => (-Infinity).toInt());
-
-  find('NaN.ceil()', () => confuse(NaN).ceil(), () => NaN.ceil());
-  find(' Infinity.ceil()', () => confuse(Infinity).ceil(),
-      () => Infinity.ceil());
-  find('-Infinity.ceil()', () => confuse(-Infinity).ceil(),
-      () => (-Infinity).ceil());
-
-  find('NaN.floor()', () => confuse(NaN).floor(), () => NaN.floor());
-  find(' Infinity.floor()', () => confuse(Infinity).floor(),
-      () => Infinity.floor());
-  find('-Infinity.floor()', () => confuse(-Infinity).floor(),
-      () => (-Infinity).floor());
-
-  find('NaN.round()', () => confuse(NaN).round(), () => NaN.round());
-  find(' Infinity.round()', () => confuse(Infinity).round(),
-      () => Infinity.round());
-  find('-Infinity.round()', () => confuse(-Infinity).round(),
-      () => (-Infinity).round());
-
-  // `truncate()` is the same as `toInt()`.
-  // We could change the runtime so that `truncate` is reported.
-  find('NaN.toInt()', () => confuse(NaN).truncate(), () => NaN.truncate());
-  find(' Infinity.toInt()', () => confuse(Infinity).truncate(),
-      () => Infinity.truncate());
-  find('-Infinity.toInt()', () => confuse(-Infinity).truncate(),
-      () => (-Infinity).truncate());
-}
diff --git a/tests/web_2/type_argument_factory_crash_test.dart b/tests/web_2/type_argument_factory_crash_test.dart
deleted file mode 100644
index 8726cf3704f..00000000000
--- a/tests/web_2/type_argument_factory_crash_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// A regression test for a dart2js crash.
-library type.argument.factory.crash.test;
-
-import "package:expect/expect.dart";
-import 'dart:collection' show LinkedHashMap;
-
-void main() {
-  // This constructor call causes a crash in dart2js.
-  var o = new LinkedHashMap<int, int>();
-
-  // Comment out this line, the compiler doesn't crash.
-  Expect.isFalse(o is List<int>);
-
-  // Enable these two lines, the compiler doesn't crash.
-  // Expect.isTrue(o.keys is Iterable<int>);
-  // Expect.isFalse(o.keys is Iterable<String>);
-}
diff --git a/tests/web_2/type_argument_factory_nocrash_test.dart b/tests/web_2/type_argument_factory_nocrash_test.dart
deleted file mode 100644
index 580cebda8d4..00000000000
--- a/tests/web_2/type_argument_factory_nocrash_test.dart
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// A regression test for a dart2js crash.
-library type.argument.factory.nocrash.test;
-
-import "package:expect/expect.dart";
-import 'dart:collection' show LinkedHashMap;
-
-void main() {
-  // This constructor call causes a crash in dart2js.
-  var o = new LinkedHashMap<int, int>();
-
-  // Comment out this line, the compiler doesn't crash.
-  Expect.isFalse(o is List<int>);
-
-  // Enable these two lines, the compiler doesn't crash.
-  Expect.isTrue(o.keys is Iterable<int>);
-  Expect.isFalse(o.keys is Iterable<String>);
-}
diff --git a/tests/web_2/type_argument_optimization_test.dart b/tests/web_2/type_argument_optimization_test.dart
deleted file mode 100644
index a80b370fc0f..00000000000
--- a/tests/web_2/type_argument_optimization_test.dart
+++ /dev/null
@@ -1,123 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test for issue 37267.
-
-typedef UpdateShouldNotify<T> = bool Function(T previous, T current);
-
-typedef ValueWidgetBuilder<T> = Widget Function(
-    BuildContext context, T value, Widget child);
-
-class BuildContext {}
-
-class Widget {}
-
-abstract class ProxyWidget extends Widget {
-  final Widget child;
-
-  ProxyWidget({this.child});
-}
-
-abstract class InheritedWidget extends ProxyWidget {
-  InheritedWidget({Widget child}) : super(child: child);
-}
-
-class InheritedProvider<T> extends InheritedWidget {
-  final T _value;
-  final UpdateShouldNotify<T> _updateShouldNotify;
-
-  InheritedProvider(
-      {T value, UpdateShouldNotify<T> updateShouldNotify, Widget child})
-      : _value = value,
-        _updateShouldNotify = updateShouldNotify,
-        super(child: child);
-}
-
-class StateDelegate {}
-
-abstract class ValueStateDelegate<T> extends StateDelegate {
-  T get value;
-}
-
-class ValueStateDelegateImpl<T> implements ValueStateDelegate<T> {
-  final T value;
-
-  ValueStateDelegateImpl(this.value);
-}
-
-class DelegateWidget {
-  final StateDelegate delegate;
-
-  DelegateWidget(this.delegate);
-}
-
-abstract class Listenable {}
-
-abstract class ValueListenable<T> extends Listenable {
-  T get value;
-}
-
-class ValueListenableImpl<T> implements ValueListenable<T> {
-  final T value;
-
-  ValueListenableImpl(this.value);
-}
-
-class ValueDelegateWidget<T> extends DelegateWidget {
-  ValueDelegateWidget(ValueStateDelegate<T> delegate) : super(delegate);
-
-  @pragma('dart2js:tryInline')
-  ValueStateDelegate<T> get delegate => super.delegate as ValueStateDelegate<T>;
-}
-
-class ValueListenableProvider<T>
-    extends ValueDelegateWidget<ValueListenable<T>> {
-  final Widget child;
-
-  final UpdateShouldNotify<T> updateShouldNotify;
-
-  ValueListenableProvider(ValueStateDelegate<ValueListenable<T>> delegate,
-      this.updateShouldNotify, this.child)
-      : super(delegate);
-
-  Widget build() {
-    return ValueListenableBuilder<T>(
-      valueListenable: delegate.value,
-      builder: (_, value, child) {
-        return InheritedProvider<T>(
-          value: value,
-          updateShouldNotify: updateShouldNotify,
-          child: child,
-        );
-      },
-      child: child,
-    );
-  }
-}
-
-class ValueListenableBuilder<T> extends Widget {
-  final ValueListenable<T> valueListenable;
-  final ValueWidgetBuilder<T> builder;
-  final Widget child;
-
-  ValueListenableBuilder({this.valueListenable, this.builder, this.child});
-}
-
-void main() {
-  print(create(42).valueListenable.value);
-  print(create('foo').valueListenable.value);
-}
-
-ValueListenableBuilder<T> create<T>(T value) {
-  ValueListenableImpl<T> valueListenable = new ValueListenableImpl<T>(value);
-  ValueStateDelegateImpl<ValueListenable<T>> valueStateDelegate =
-      new ValueStateDelegateImpl<ValueListenable<T>>(valueListenable);
-  ValueListenableProvider<T> valueListenableProvider =
-      new ValueListenableProvider<T>(valueStateDelegate, null, null);
-  Widget widget = valueListenableProvider.build();
-  print(value);
-  return widget;
-}
diff --git a/tests/web_2/type_error_message_test.dart b/tests/web_2/type_error_message_test.dart
deleted file mode 100644
index 30de1867539..00000000000
--- a/tests/web_2/type_error_message_test.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that the error message for a failing subtype test includes type
-// arguments.
-
-import 'package:expect/expect.dart';
-
-class C<T, S> {}
-
-bool inComplianceMode() {
-  try {
-    int i = ('hest' as dynamic);
-  } catch (e) {
-    return true;
-  }
-  return false;
-}
-
-main() {
-  if (inComplianceMode()) {
-    bool caught = false;
-    try {
-      C<String, String> x = (new C<C<int, String>, String>()) as dynamic;
-    } catch (e) {
-      String nameOfC = (C).toString();
-      if (nameOfC.contains('<')) {
-        nameOfC = nameOfC.substring(0, nameOfC.indexOf('<'));
-      }
-      String nameOfInt = (int).toString();
-      String nameOfString = (String).toString();
-      String expected =
-          "'$nameOfC<$nameOfC<$nameOfInt, $nameOfString>, $nameOfString>'";
-      Expect.isTrue(e.toString().contains(expected),
-          'Expected "$expected" in the message: $e');
-      print(e);
-      caught = true;
-    }
-    Expect.isTrue(caught);
-  }
-}
diff --git a/tests/web_2/type_literal2_test.dart b/tests/web_2/type_literal2_test.dart
deleted file mode 100644
index dd0580c0cd4..00000000000
--- a/tests/web_2/type_literal2_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import 'dart:async';
-import 'package:expect/expect.dart';
-
-typedef Typedef();
-typedef GenericTypedef<T> = void Function(T);
-typedef GenericFunctionTypedef = void Function<T>(T);
-typedef TypedefWithFutureOr = void Function<T>(FutureOr<T>);
-
-const typedef = Typedef;
-const genericTypedef = GenericTypedef;
-const genericFunctionTypedef = GenericFunctionTypedef;
-const typedefWithFutureOr = TypedefWithFutureOr;
-const futureOr = FutureOr;
-const null_ = Null;
-
-main() {
-  Expect.isTrue(identical(typedef, Typedef));
-  Expect.isTrue(identical(genericTypedef, GenericTypedef));
-  Expect.isTrue(identical(genericFunctionTypedef, GenericFunctionTypedef));
-  Expect.isTrue(identical(typedefWithFutureOr, TypedefWithFutureOr));
-  Expect.isTrue(identical(futureOr, FutureOr));
-  Expect.isTrue(identical(null_, Null));
-}
diff --git a/tests/web_2/type_literal_test.dart b/tests/web_2/type_literal_test.dart
deleted file mode 100644
index 50ffc3e6d63..00000000000
--- a/tests/web_2/type_literal_test.dart
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--strong --no-minify
-
-import 'package:expect/expect.dart';
-
-class Class1 {}
-
-class Class2<X> {}
-
-void main() {
-  String name1 = '${Class1}';
-  String name2 = '${Class2}';
-  Expect.equals('Class1', name1);
-  Expect.equals('Class2<dynamic>', name2);
-}
diff --git a/tests/web_2/typevariable_factory_test.dart b/tests/web_2/typevariable_factory_test.dart
deleted file mode 100644
index 3c51f0378cb..00000000000
--- a/tests/web_2/typevariable_factory_test.dart
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test to ensure that we can use type variable in factories.
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  factory A.foo(o) {
-    Expect.isTrue(o is A<T>);
-    return new A();
-  }
-  A();
-}
-
-main() => new A<int>.foo(new A<int>());
diff --git a/tests/web_2/typevariable_substitution_test.dart b/tests/web_2/typevariable_substitution_test.dart
deleted file mode 100644
index 723b0986a64..00000000000
--- a/tests/web_2/typevariable_substitution_test.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Regression test to ensure that we substitute type variables in is-tests.
-
-import "package:expect/expect.dart";
-
-class A<T> {
-  A.foo(o) {
-    Expect.isTrue(o is A<T>);
-  }
-  A();
-}
-
-class B extends A<int> {
-  B.foo(o) : super.foo(o);
-}
-
-main() => new B.foo(new A<int>());
diff --git a/tests/web_2/typevariable_typedef_test.dart b/tests/web_2/typevariable_typedef_test.dart
deleted file mode 100644
index 921d68c6c54..00000000000
--- a/tests/web_2/typevariable_typedef_test.dart
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2018, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// dart2jsOptions=--no-minify
-
-import "package:expect/expect.dart";
-
-typedef T Func<T>(T x);
-
-class A<T> {
-  final Box<T> box;
-  A._(this.box);
-  A.foo(Func<T> func) : this._(new Box<T>(func));
-}
-
-class Box<T> {
-  final Func<T> func;
-  Box(this.func);
-}
-
-class B extends A {
-  B() : super.foo((x) => x);
-}
-
-main() {
-  var x = new B();
-  Expect.equals(x.runtimeType.toString(), 'B');
-}
diff --git a/tests/web_2/unconditional_dartio_import_test.dart b/tests/web_2/unconditional_dartio_import_test.dart
deleted file mode 100644
index fd07b707e17..00000000000
--- a/tests/web_2/unconditional_dartio_import_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-/// Tests that dart2js allows to import dart:io for web clients, but it
-/// continues to indicate that it is not supported (so config-specific imports
-/// continue to have the same semantics as before).
-library unconditional_dartio_import_test;
-
-import 'dart:io' as io; // import is allowed!
-import 'package:expect/expect.dart';
-
-main() {
-  // their APIs throw:
-  Expect.throws(() => new io.File('name').existsSync());
-
-  // ... but environment variable will indicate it is not supported.
-  Expect.isFalse(const bool.fromEnvironment('dart.library.io'));
-}
diff --git a/tests/web_2/unused_generator_type_parameter_test.dart b/tests/web_2/unused_generator_type_parameter_test.dart
deleted file mode 100644
index 65dba5b5ecc..00000000000
--- a/tests/web_2/unused_generator_type_parameter_test.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-class Foo<X> {
-  // T is unused, so can be erased, but that should not break anything.  The
-  // generator should still have a header and a body since it needs to compute
-  // the return type.
-  Iterable<Set<X>> bar<T>() sync* {}
-}
-
-main() {
-  var f = Foo<String>();
-  var c = f.bar<int>();
-  Expect.isFalse(c.iterator is Iterator<Set<int>>);
-  Expect.isTrue(c.iterator is Iterator<Set<String>>);
-}
diff --git a/tests/web_2/unused_local_const_test.dart b/tests/web_2/unused_local_const_test.dart
deleted file mode 100644
index 77ef3f1e2c2..00000000000
--- a/tests/web_2/unused_local_const_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-class A {
-  const A();
-
-  A operator -() => this;
-}
-
-main() {
-  const a = const A();
-  const c = //# 01: compile-time error
-      const bool.fromEnvironment('foo') ? null : -a; //# 01: continued
-}
diff --git a/tests/web_2/useful_error_message_1_test.dart b/tests/web_2/useful_error_message_1_test.dart
deleted file mode 100644
index 07e8dcd1d01..00000000000
--- a/tests/web_2/useful_error_message_1_test.dart
+++ /dev/null
@@ -1,88 +0,0 @@
-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-// Test that closures have a useful string that identifies the function by name
-// in error messages.
-
-import "package:expect/expect.dart";
-
-@pragma('dart2js:noInline')
-@pragma('dart2js:assumeDynamic')
-confuse(x) => x;
-
-class CCCC {
-  instanceMethod([a, b]) => '[$a, $b]';
-  static staticMethod() => 'hi';
-  // Default `toString` method returns "Instance of 'CCCC'" or similar with a
-  // shorter name if minified.
-}
-
-main() {
-  var c = confuse(new CCCC());
-
-  var instanceString = confuse(c).toString();
-  bool isMinified =
-      instanceString.contains(new RegExp("Instance of '..?.?'")) ||
-          instanceString.contains('minified:');
-  if (!isMinified) {
-    Expect.equals("Instance of 'CCCC'", instanceString);
-  }
-
-  checkContains(String message, String tag) {
-    if (!message.contains(tag)) {
-      if (!isMinified) {
-        Expect.fail('"$message" should contain "$tag"');
-      }
-      // When minified we will accept quoted names up to 3 characters.
-      Expect.isTrue(
-          message.contains(new RegExp("'..?.?'")) ||
-              message.contains("'minified:"),
-          '"$message" should contain minified name');
-    }
-  }
-
-  // We use ArgumentError.value since it prints the value using
-  // Error.safeToString.
-  var e1 = new ArgumentError.value(c);
-  var s1 = '$e1';
-  Expect.isTrue(s1.contains(instanceString),
-      'Error message "$s1" should contain "$instanceString"');
-
-  // Instance method tear-off.
-  var e2 = new ArgumentError.value(confuse(c).instanceMethod);
-  var s2 = '$e2';
-  // Instance method tear-off should contain instance string.
-  Expect.isTrue(s2.contains(instanceString),
-      'Error message "$s2" should contain "$instanceString"');
-  // Instance method tear-off should also name the method.
-  checkContains(s2.replaceAll(instanceString, '*'), "instanceMethod");
-
-  // Top level tear-off.
-  var e3 = new ArgumentError.value(confuse);
-  var s3 = '$e3';
-  checkContains(s3, "confuse");
-  checkContains('$confuse', "confuse");
-
-  // Static method tear-off.
-  var e4 = new ArgumentError.value(CCCC.staticMethod);
-  var s4 = '$e4';
-  checkContains(s4, "staticMethod");
-  checkContains('${CCCC.staticMethod}', "staticMethod");
-
-  // Local anonymous closure.
-  var anon = () => c;
-  var e5 = new ArgumentError.value(anon);
-  var s5 = '$e5';
-  checkContains(s5, "main_closure");
-  checkContains('$anon', "main_closure");
-
-  // Local named closure.
-  localFunction() => c;
-  var e6 = new ArgumentError.value(localFunction);
-  var s6 = '$e6';
-  checkContains(s6, "localFunction");
-  checkContains('$localFunction', "localFunction");
-}
diff --git a/tests/web_2/weak_reference_test.dart b/tests/web_2/weak_reference_test.dart
deleted file mode 100644
index 6fcd75beaa2..00000000000
--- a/tests/web_2/weak_reference_test.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Basic tests for the WeakReference and Finalizer API for the web backends.
-// Does not trigger garbage collection to heavily test the functionality.
-
-import 'package:expect/minitest.dart';
-
-class Foo {
-  int close() {
-    return 42; // no-op, dropped return value.
-  }
-}
-
-void callback(Foo f) {
-  f.close();
-}
-
-main() {
-  test('weak reference', () {
-    var list = ["foo"];
-    var weakRef = WeakReference<List<String>>(list);
-    expect(weakRef.target, equals(list));
-
-    // JavaScript API throws when the representation of target is not 'object'
-    // in the compiled JavaScript.
-    expect(() => WeakReference<String>("foo"), throws);
-    expect(() => WeakReference<int>(1), throws);
-  });
-
-  test('finalizer', () {
-    var finalizer = Finalizer<Foo>(callback);
-    var list = ["foo"];
-    var foo = Foo();
-    // Should not cause errors to attach or detach
-    finalizer.attach(list, foo);
-    finalizer.attach(list, foo, detach: list);
-    finalizer.detach(list);
-
-    // Should not cause errors to use a different detach token
-    var detachList = [1, 2, 3];
-    finalizer.attach(list, foo, detach: detachList);
-    finalizer.detach(detachList);
-
-    // JavaScript API returns false when unknown target detached.
-    // Should not cause an error to detach unknown token.
-    var unknownList = [2, 4, 6];
-    finalizer.detach(unknownList);
-
-    // JavaScript API throws when target and detach token are not objects.
-    expect(() => finalizer.attach("token string value", foo), throws);
-    expect(() => finalizer.detach("detach string value"), throws);
-  });
-}
diff --git a/tests/web_2/web_2.status b/tests/web_2/web_2.status
deleted file mode 100644
index 1c7dee62ca4..00000000000
--- a/tests/web_2/web_2.status
+++ /dev/null
@@ -1,59 +0,0 @@
-# Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-
-[ $compiler != dart2js ]
-dummy_compiler_test: SkipByDesign # Issue 30773. Test should be migrated as a unit test of dart2js, is only intended to test self-hosting.
-internal/deferred_url_test: SkipByDesign # test specific for the dart2js runtime
-
-[ $runtime == jsshell ]
-deferred/load_in_correct_order_test: SkipByDesign # jsshell preamble does not support this test.
-
-[ $browser ]
-native/*: Skip
-
-[ $compiler == dart2js && $mode == debug ]
-operator_test: Skip
-string_interpolation_test: Skip
-
-[ $compiler == dart2js && $runtime == chrome && $system == windows ]
-class_test: Slow, Pass # Issue 25940
-closure_capture3_test: Slow, Pass # Issue 25940
-closure_capture5_test: Slow, Pass # Issue 25940
-conditional_test: Slow, Pass # Issue 25940
-consistent_codeUnitAt_error_test: Slow, Pass # Issue 25940
-constant_javascript_semantics2_test: Slow, Pass # Issue 25940
-deferred_split_test: Slow, Pass # Issue 25940
-
-[ $compiler == dart2js && $runtime == chrome && $csp ]
-deferred/load_in_correct_order_test: SkipByDesign # Purposely uses `eval`
-
-[ $compiler == dart2js && $runtime == d8 ]
-internal/object_members_test: SkipByDesign # Browser test
-
-[ $compiler == dart2js && $runtime == ff && $system == windows ]
-consistent_index_error_string_test: Slow, Pass # Issue 25940
-
-[ $compiler == dart2js && $csp ]
-deferred_custom_loader_test: SkipByDesign # Issue 25683
-deferred_fail_and_retry_test: SkipByDesign # Uses eval to simulate failed loading.
-internal/object_members_test: SkipByDesign # Uses eval for interop
-
-[ $compiler == dart2js && !$host_checked ]
-dummy_compiler_test: Slow, Pass # Issue 32439. self-hosting doesn't work with CFE yet.
-
-[ $compiler == dart2js && $minified ]
-code_motion_exception_test: Skip # Requires unminified operator names.
-
-[ $compiler == dart2js && ($runtime == ff || $runtime == jsshell || $runtime == safari) ]
-code_motion_exception_test: Skip # Required V8 specific format of JavaScript errors.
-
-[ $compiler == dart2js && ($browser || $host_checked) ]
-dummy_compiler_test: SkipByDesign # Issue 30773. Test should be migrated as a unit test of dart2js, is only intended to test self-hosting.
-
-[ $compiler == dartk && $runtime == vm ]
-new_from_env_test: SkipByDesign # dart2js only test
-unconditional_dartio_import_test: SkipByDesign # dart2js only test
-
-[ $compiler == dartkp || $runtime == vm ]
-weak_reference_test: SkipByDesign # Web only test
diff --git a/tests/web_2/while_test.dart b/tests/web_2/while_test.dart
deleted file mode 100644
index ce18e73e931..00000000000
--- a/tests/web_2/while_test.dart
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// @dart = 2.7
-
-import "package:expect/expect.dart";
-
-void while1() {
-  bool cond = true;
-  var result = 0;
-  var x = 0;
-  while (cond) {
-    if (x == 10) cond = false;
-    result += x;
-    x = x + 1;
-  }
-  Expect.equals(55, result);
-}
-
-void while2() {
-  var t = 0;
-  var i = 0;
-  while (i == 0) {
-    t = t + 10;
-    i++;
-  }
-  Expect.equals(10, t);
-}
-
-void while3() {
-  var i = 0;
-  while (i == 1) {
-    Expect.fail('unreachable');
-  }
-}
-
-void while4() {
-  var cond1 = true;
-  var result = 0;
-  var i = 0;
-  while (cond1) {
-    if (i == 9) cond1 = false;
-    var cond2 = true;
-    var j = 0;
-    while (cond2) {
-      if (j == 9) cond2 = false;
-      result = result + 1;
-      j = j + 1;
-    }
-    i = i + 1;
-  }
-  Expect.equals(100, result);
-}
-
-int while5_2() {
-  // The while condition dominates 3 blocks: the body, the block after the loop
-  // and the exit block.
-  while (true) {
-    if (true) {
-      return 499;
-    }
-  }
-  return 0;
-}
-
-void while5() {
-  Expect.equals(499, while5_2());
-}
-
-void main() {
-  while1();
-  while2();
-  while3();
-  while4();
-  while5();
-}